1use crate::{
2 ActiveDiagnostic, BUFFER_HEADER_PADDING, BlockId, CURSORS_VISIBLE_FOR, ChunkRendererContext,
3 ChunkReplacement, CodeActionSource, ColumnarMode, ConflictsOurs, ConflictsOursMarker,
4 ConflictsOuter, ConflictsTheirs, ConflictsTheirsMarker, ContextMenuPlacement, CursorShape,
5 CustomBlockId, DisplayDiffHunk, DisplayPoint, DisplayRow, EditDisplayMode, EditPrediction,
6 Editor, EditorMode, EditorSettings, EditorSnapshot, EditorStyle, FILE_HEADER_HEIGHT,
7 FocusedBlock, GutterDimensions, GutterHoverButton, HalfPageDown, HalfPageUp, HandleInput,
8 HoveredCursor, InlayHintRefreshReason, JumpData, LineDown, LineHighlight, LineUp, MAX_LINE_LEN,
9 MINIMAP_FONT_SIZE, MULTI_BUFFER_EXCERPT_HEADER_HEIGHT, OpenExcerpts, PageDown, PageUp,
10 PhantomDiffReviewIndicator, Point, RowExt, RowRangeExt, SelectPhase, Selection,
11 SelectionDragState, SelectionEffects, SizingBehavior, SoftWrap, StickyHeaderExcerpt, ToPoint,
12 ToggleFold, ToggleFoldAll,
13 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
14 column_pixels,
15 display_map::{
16 Block, BlockContext, BlockStyle, ChunkRendererId, DisplaySnapshot, EditorMargins,
17 HighlightKey, HighlightedChunk, ToDisplayPoint,
18 },
19 editor_settings::{
20 CurrentLineHighlight, DocumentColorsRenderMode, DoubleClickInMultibuffer, Minimap,
21 MinimapThumb, MinimapThumbBorder, ScrollBeyondLastLine, ScrollbarAxes,
22 ScrollbarDiagnostics, ShowMinimap,
23 },
24 git::blame::{BlameRenderer, GitBlame, GlobalBlameRenderer},
25 hover_popover::{
26 self, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
27 POPOVER_RIGHT_OFFSET, hover_at,
28 },
29 inlay_hint_settings,
30 mouse_context_menu::{self, MenuPosition},
31 scroll::{
32 ActiveScrollbarState, Autoscroll, ScrollOffset, ScrollPixelOffset, ScrollbarThumbState,
33 scroll_amount::ScrollAmount,
34 },
35};
36use buffer_diff::{DiffHunkStatus, DiffHunkStatusKind};
37use collections::{BTreeMap, HashMap, HashSet};
38use feature_flags::{DiffReviewFeatureFlag, FeatureFlagAppExt as _};
39use file_icons::FileIcons;
40use git::{Oid, blame::BlameEntry, commit::ParsedCommitMessage, status::FileStatus};
41use gpui::{
42 Action, Along, AnyElement, App, AppContext, AvailableSpace, Axis as ScrollbarAxis, BorderStyle,
43 Bounds, ClickEvent, ClipboardItem, ContentMask, Context, Corners, CursorStyle, DispatchPhase,
44 Edges, Element, ElementInputHandler, Entity, Focusable as _, Font, FontId, FontWeight,
45 GlobalElementId, Hitbox, HitboxBehavior, Hsla, InteractiveElement, IntoElement, IsZero, Length,
46 Modifiers, ModifiersChangedEvent, MouseButton, MouseClickEvent, MouseDownEvent, MouseMoveEvent,
47 MousePressureEvent, MouseUpEvent, PaintQuad, ParentElement, Pixels, PressureStage, ScrollDelta,
48 ScrollHandle, ScrollWheelEvent, ShapedLine, SharedString, Size, StatefulInteractiveElement,
49 Style, Styled, StyledText, TextAlign, TextRun, TextStyleRefinement, WeakEntity, Window,
50 anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline, pattern_slash,
51 point, px, quad, relative, size, solid_background, transparent_black,
52};
53use itertools::Itertools;
54use language::{
55 HighlightedText, IndentGuideSettings, LanguageAwareStyling,
56 language_settings::ShowWhitespaceSetting,
57};
58use markdown::Markdown;
59use multi_buffer::{
60 Anchor, ExcerptBoundaryInfo, ExpandExcerptDirection, ExpandInfo, MultiBufferPoint,
61 MultiBufferRow, RowInfo,
62};
63
64use project::{
65 DisableAiSettings, Entry,
66 debugger::breakpoint_store::{Breakpoint, BreakpointSessionState},
67 project_settings::ProjectSettings,
68};
69use settings::{
70 GitGutterSetting, GitHunkStyleSetting, IndentGuideBackgroundColoring, IndentGuideColoring,
71 RelativeLineNumbers, Settings,
72};
73use smallvec::{SmallVec, smallvec};
74use std::{
75 any::TypeId,
76 borrow::Cow,
77 cell::Cell,
78 cmp::{self, Ordering},
79 fmt::{self, Write},
80 iter, mem,
81 ops::{Deref, Range},
82 path::{self, Path},
83 rc::Rc,
84 sync::Arc,
85 time::{Duration, Instant},
86};
87use sum_tree::Bias;
88use text::{BufferId, SelectionGoal};
89use theme::{ActiveTheme, Appearance, PlayerColor};
90use theme_settings::BufferLineHeight;
91use ui::utils::ensure_minimum_contrast;
92use ui::{
93 ButtonLike, ContextMenu, Indicator, KeyBinding, POPOVER_Y_PADDING, Tooltip, prelude::*,
94 right_click_menu, scrollbars::ShowScrollbar, text_for_keystroke,
95};
96use unicode_segmentation::UnicodeSegmentation;
97use util::post_inc;
98use util::{RangeExt, ResultExt, debug_panic};
99use workspace::{
100 CollaboratorId, ItemHandle, ItemSettings, OpenInTerminal, OpenTerminal, RevealInProjectPanel,
101 Workspace,
102 item::{Item, ItemBufferKind},
103};
104
105/// Determines what kinds of highlights should be applied to a lines background.
106#[derive(Clone, Copy, Default)]
107struct LineHighlightSpec {
108 selection: bool,
109 breakpoint: bool,
110 _active_stack_frame: bool,
111}
112
113#[derive(Debug)]
114struct SelectionLayout {
115 head: DisplayPoint,
116 cursor_shape: CursorShape,
117 is_newest: bool,
118 is_local: bool,
119 range: Range<DisplayPoint>,
120 active_rows: Range<DisplayRow>,
121 user_name: Option<SharedString>,
122}
123
124struct InlineBlameLayout {
125 element: AnyElement,
126 bounds: Bounds<Pixels>,
127 buffer_id: BufferId,
128 entry: BlameEntry,
129}
130
131impl SelectionLayout {
132 fn new<T: ToPoint + ToDisplayPoint + Clone>(
133 selection: Selection<T>,
134 line_mode: bool,
135 cursor_offset: bool,
136 cursor_shape: CursorShape,
137 map: &DisplaySnapshot,
138 is_newest: bool,
139 is_local: bool,
140 user_name: Option<SharedString>,
141 ) -> Self {
142 let point_selection = selection.map(|p| p.to_point(map.buffer_snapshot()));
143 let display_selection = point_selection.map(|p| p.to_display_point(map));
144 let mut range = display_selection.range();
145 let mut head = display_selection.head();
146 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
147 ..map.next_line_boundary(point_selection.end).1.row();
148
149 // vim visual line mode
150 if line_mode {
151 let point_range = map.expand_to_line(point_selection.range());
152 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
153 }
154
155 // any vim visual mode (including line mode)
156 if cursor_offset && !range.is_empty() && !selection.reversed {
157 if head.column() > 0 {
158 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left);
159 } else if head.row().0 > 0 && head != map.max_point() {
160 head = map.clip_point(
161 DisplayPoint::new(
162 head.row().previous_row(),
163 map.line_len(head.row().previous_row()),
164 ),
165 Bias::Left,
166 );
167 // updating range.end is a no-op unless you're cursor is
168 // on the newline containing a multi-buffer divider
169 // in which case the clip_point may have moved the head up
170 // an additional row.
171 range.end = DisplayPoint::new(head.row().next_row(), 0);
172 active_rows.end = head.row();
173 }
174 }
175
176 Self {
177 head,
178 cursor_shape,
179 is_newest,
180 is_local,
181 range,
182 active_rows,
183 user_name,
184 }
185 }
186}
187
188#[derive(Default)]
189struct RenderBlocksOutput {
190 // We store spacer blocks separately because they paint in a different order
191 // (spacers -> indent guides -> non-spacers)
192 non_spacer_blocks: Vec<BlockLayout>,
193 spacer_blocks: Vec<BlockLayout>,
194 row_block_types: HashMap<DisplayRow, bool>,
195 resized_blocks: Option<HashMap<CustomBlockId, u32>>,
196}
197
198pub struct EditorElement {
199 editor: Entity<Editor>,
200 style: EditorStyle,
201 split_side: Option<SplitSide>,
202}
203
204#[derive(Debug, Clone, Copy, PartialEq, Eq)]
205pub enum SplitSide {
206 Left,
207 Right,
208}
209
210impl EditorElement {
211 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
212
213 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
214 Self {
215 editor: editor.clone(),
216 style,
217 split_side: None,
218 }
219 }
220
221 pub fn set_split_side(&mut self, side: SplitSide) {
222 self.split_side = Some(side);
223 }
224
225 fn should_show_buffer_headers(&self) -> bool {
226 self.split_side.is_none()
227 }
228
229 fn register_actions(&self, window: &mut Window, cx: &mut App) {
230 let editor = &self.editor;
231 editor.update(cx, |editor, cx| {
232 for action in editor.editor_actions.borrow().values() {
233 (action)(editor, window, cx)
234 }
235 });
236
237 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
238 crate::clangd_ext::apply_related_actions(editor, window, cx);
239
240 register_action(editor, window, Editor::open_context_menu);
241 register_action(editor, window, Editor::move_left);
242 register_action(editor, window, Editor::move_right);
243 register_action(editor, window, Editor::move_down);
244 register_action(editor, window, Editor::move_down_by_lines);
245 register_action(editor, window, Editor::select_down_by_lines);
246 register_action(editor, window, Editor::move_up);
247 register_action(editor, window, Editor::move_up_by_lines);
248 register_action(editor, window, Editor::select_up_by_lines);
249 register_action(editor, window, Editor::select_page_down);
250 register_action(editor, window, Editor::select_page_up);
251 register_action(editor, window, Editor::cancel);
252 register_action(editor, window, Editor::newline);
253 register_action(editor, window, Editor::newline_above);
254 register_action(editor, window, Editor::newline_below);
255 register_action(editor, window, Editor::backspace);
256 register_action(editor, window, Editor::blame_hover);
257 register_action(editor, window, Editor::delete);
258 register_action(editor, window, Editor::tab);
259 register_action(editor, window, Editor::next_snippet_tabstop);
260 register_action(editor, window, Editor::previous_snippet_tabstop);
261 register_action(editor, window, Editor::backtab);
262 register_action(editor, window, Editor::indent);
263 register_action(editor, window, Editor::outdent);
264 register_action(editor, window, Editor::autoindent);
265 register_action(editor, window, Editor::delete_line);
266 register_action(editor, window, Editor::join_lines);
267 register_action(editor, window, Editor::sort_lines_by_length);
268 register_action(editor, window, Editor::sort_lines_case_sensitive);
269 register_action(editor, window, Editor::sort_lines_case_insensitive);
270 register_action(editor, window, Editor::reverse_lines);
271 register_action(editor, window, Editor::shuffle_lines);
272 register_action(editor, window, Editor::rotate_selections_forward);
273 register_action(editor, window, Editor::rotate_selections_backward);
274 register_action(editor, window, Editor::convert_indentation_to_spaces);
275 register_action(editor, window, Editor::convert_indentation_to_tabs);
276 register_action(editor, window, Editor::convert_to_upper_case);
277 register_action(editor, window, Editor::convert_to_lower_case);
278 register_action(editor, window, Editor::convert_to_title_case);
279 register_action(editor, window, Editor::convert_to_snake_case);
280 register_action(editor, window, Editor::convert_to_kebab_case);
281 register_action(editor, window, Editor::convert_to_upper_camel_case);
282 register_action(editor, window, Editor::convert_to_lower_camel_case);
283 register_action(editor, window, Editor::convert_to_opposite_case);
284 register_action(editor, window, Editor::convert_to_sentence_case);
285 register_action(editor, window, Editor::toggle_case);
286 register_action(editor, window, Editor::convert_to_rot13);
287 register_action(editor, window, Editor::convert_to_rot47);
288 register_action(editor, window, Editor::delete_to_previous_word_start);
289 register_action(editor, window, Editor::delete_to_previous_subword_start);
290 register_action(editor, window, Editor::delete_to_next_word_end);
291 register_action(editor, window, Editor::delete_to_next_subword_end);
292 register_action(editor, window, Editor::delete_to_beginning_of_line);
293 register_action(editor, window, Editor::delete_to_end_of_line);
294 register_action(editor, window, Editor::cut_to_end_of_line);
295 register_action(editor, window, Editor::duplicate_line_up);
296 register_action(editor, window, Editor::duplicate_line_down);
297 register_action(editor, window, Editor::duplicate_selection);
298 register_action(editor, window, Editor::move_line_up);
299 register_action(editor, window, Editor::move_line_down);
300 register_action(editor, window, Editor::transpose);
301 register_action(editor, window, Editor::rewrap);
302 register_action(editor, window, Editor::cut);
303 register_action(editor, window, Editor::kill_ring_cut);
304 register_action(editor, window, Editor::kill_ring_yank);
305 register_action(editor, window, Editor::copy);
306 register_action(editor, window, Editor::copy_and_trim);
307 register_action(editor, window, Editor::diff_clipboard_with_selection);
308 register_action(editor, window, Editor::paste);
309 register_action(editor, window, Editor::undo);
310 register_action(editor, window, Editor::redo);
311 register_action(editor, window, Editor::move_page_up);
312 register_action(editor, window, Editor::move_page_down);
313 register_action(editor, window, Editor::next_screen);
314 register_action(editor, window, Editor::scroll_cursor_top);
315 register_action(editor, window, Editor::scroll_cursor_center);
316 register_action(editor, window, Editor::scroll_cursor_bottom);
317 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
318 register_action(editor, window, |editor, _: &LineDown, window, cx| {
319 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
320 });
321 register_action(editor, window, |editor, _: &LineUp, window, cx| {
322 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
323 });
324 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
325 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
326 });
327 register_action(
328 editor,
329 window,
330 |editor, HandleInput(text): &HandleInput, window, cx| {
331 if text.is_empty() {
332 return;
333 }
334 editor.handle_input(text, window, cx);
335 },
336 );
337 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
338 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
339 });
340 register_action(editor, window, |editor, _: &PageDown, window, cx| {
341 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
342 });
343 register_action(editor, window, |editor, _: &PageUp, window, cx| {
344 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
345 });
346 register_action(editor, window, Editor::move_to_previous_word_start);
347 register_action(editor, window, Editor::move_to_previous_subword_start);
348 register_action(editor, window, Editor::move_to_next_word_end);
349 register_action(editor, window, Editor::move_to_next_subword_end);
350 register_action(editor, window, Editor::move_to_beginning_of_line);
351 register_action(editor, window, Editor::move_to_end_of_line);
352 register_action(editor, window, Editor::move_to_start_of_paragraph);
353 register_action(editor, window, Editor::move_to_end_of_paragraph);
354 register_action(editor, window, Editor::move_to_beginning);
355 register_action(editor, window, Editor::move_to_end);
356 register_action(editor, window, Editor::move_to_start_of_excerpt);
357 register_action(editor, window, Editor::move_to_start_of_next_excerpt);
358 register_action(editor, window, Editor::move_to_end_of_excerpt);
359 register_action(editor, window, Editor::move_to_end_of_previous_excerpt);
360 register_action(editor, window, Editor::select_up);
361 register_action(editor, window, Editor::select_down);
362 register_action(editor, window, Editor::select_left);
363 register_action(editor, window, Editor::select_right);
364 register_action(editor, window, Editor::select_to_previous_word_start);
365 register_action(editor, window, Editor::select_to_previous_subword_start);
366 register_action(editor, window, Editor::select_to_next_word_end);
367 register_action(editor, window, Editor::select_to_next_subword_end);
368 register_action(editor, window, Editor::select_to_beginning_of_line);
369 register_action(editor, window, Editor::select_to_end_of_line);
370 register_action(editor, window, Editor::select_to_start_of_paragraph);
371 register_action(editor, window, Editor::select_to_end_of_paragraph);
372 register_action(editor, window, Editor::select_to_start_of_excerpt);
373 register_action(editor, window, Editor::select_to_start_of_next_excerpt);
374 register_action(editor, window, Editor::select_to_end_of_excerpt);
375 register_action(editor, window, Editor::select_to_end_of_previous_excerpt);
376 register_action(editor, window, Editor::select_to_beginning);
377 register_action(editor, window, Editor::select_to_end);
378 register_action(editor, window, Editor::select_all);
379 register_action(editor, window, |editor, action, window, cx| {
380 editor.select_all_matches(action, window, cx).log_err();
381 });
382 register_action(editor, window, Editor::select_line);
383 register_action(editor, window, Editor::split_selection_into_lines);
384 register_action(editor, window, Editor::add_selection_above);
385 register_action(editor, window, Editor::add_selection_below);
386 register_action(editor, window, Editor::insert_snippet_at_selections);
387 register_action(editor, window, |editor, action, window, cx| {
388 editor.select_next(action, window, cx).log_err();
389 });
390 register_action(editor, window, |editor, action, window, cx| {
391 editor.select_previous(action, window, cx).log_err();
392 });
393 register_action(editor, window, |editor, action, window, cx| {
394 editor.find_next_match(action, window, cx).log_err();
395 });
396 register_action(editor, window, |editor, action, window, cx| {
397 editor.find_previous_match(action, window, cx).log_err();
398 });
399 register_action(editor, window, Editor::toggle_comments);
400 register_action(editor, window, Editor::toggle_block_comments);
401 register_action(editor, window, Editor::select_larger_syntax_node);
402 register_action(editor, window, Editor::select_smaller_syntax_node);
403 register_action(editor, window, Editor::select_next_syntax_node);
404 register_action(editor, window, Editor::select_prev_syntax_node);
405 register_action(
406 editor,
407 window,
408 Editor::select_to_start_of_larger_syntax_node,
409 );
410 register_action(editor, window, Editor::select_to_end_of_larger_syntax_node);
411 register_action(editor, window, Editor::unwrap_syntax_node);
412 register_action(editor, window, Editor::move_to_start_of_larger_syntax_node);
413 register_action(editor, window, Editor::move_to_end_of_larger_syntax_node);
414 register_action(editor, window, Editor::select_enclosing_symbol);
415 register_action(editor, window, Editor::move_to_enclosing_bracket);
416 register_action(editor, window, Editor::undo_selection);
417 register_action(editor, window, Editor::redo_selection);
418 if editor.read(cx).buffer_kind(cx) == ItemBufferKind::Multibuffer {
419 register_action(editor, window, Editor::expand_excerpts);
420 register_action(editor, window, Editor::expand_excerpts_up);
421 register_action(editor, window, Editor::expand_excerpts_down);
422 }
423 register_action(editor, window, Editor::go_to_diagnostic);
424 register_action(editor, window, Editor::go_to_prev_diagnostic);
425 register_action(editor, window, Editor::go_to_next_hunk);
426 register_action(editor, window, Editor::go_to_prev_hunk);
427 register_action(editor, window, Editor::go_to_next_document_highlight);
428 register_action(editor, window, Editor::go_to_prev_document_highlight);
429 register_action(editor, window, |editor, action, window, cx| {
430 editor
431 .go_to_definition(action, window, cx)
432 .detach_and_log_err(cx);
433 });
434 register_action(editor, window, |editor, action, window, cx| {
435 editor
436 .go_to_definition_split(action, window, cx)
437 .detach_and_log_err(cx);
438 });
439 register_action(editor, window, |editor, action, window, cx| {
440 editor
441 .go_to_declaration(action, window, cx)
442 .detach_and_log_err(cx);
443 });
444 register_action(editor, window, |editor, action, window, cx| {
445 editor
446 .go_to_declaration_split(action, window, cx)
447 .detach_and_log_err(cx);
448 });
449 register_action(editor, window, |editor, action, window, cx| {
450 editor
451 .go_to_implementation(action, window, cx)
452 .detach_and_log_err(cx);
453 });
454 register_action(editor, window, |editor, action, window, cx| {
455 editor
456 .go_to_implementation_split(action, window, cx)
457 .detach_and_log_err(cx);
458 });
459 register_action(editor, window, |editor, action, window, cx| {
460 editor
461 .go_to_type_definition(action, window, cx)
462 .detach_and_log_err(cx);
463 });
464 register_action(editor, window, |editor, action, window, cx| {
465 editor
466 .go_to_type_definition_split(action, window, cx)
467 .detach_and_log_err(cx);
468 });
469 register_action(editor, window, Editor::open_url);
470 register_action(editor, window, Editor::open_selected_filename);
471 register_action(editor, window, Editor::fold);
472 register_action(editor, window, Editor::fold_at_level);
473 register_action(editor, window, Editor::fold_at_level_1);
474 register_action(editor, window, Editor::fold_at_level_2);
475 register_action(editor, window, Editor::fold_at_level_3);
476 register_action(editor, window, Editor::fold_at_level_4);
477 register_action(editor, window, Editor::fold_at_level_5);
478 register_action(editor, window, Editor::fold_at_level_6);
479 register_action(editor, window, Editor::fold_at_level_7);
480 register_action(editor, window, Editor::fold_at_level_8);
481 register_action(editor, window, Editor::fold_at_level_9);
482 register_action(editor, window, Editor::fold_all);
483 register_action(editor, window, Editor::fold_function_bodies);
484 register_action(editor, window, Editor::fold_recursive);
485 register_action(editor, window, Editor::toggle_fold);
486 register_action(editor, window, Editor::toggle_fold_recursive);
487 register_action(editor, window, Editor::toggle_fold_all);
488 register_action(editor, window, Editor::unfold_lines);
489 register_action(editor, window, Editor::unfold_recursive);
490 register_action(editor, window, Editor::unfold_all);
491 register_action(editor, window, Editor::fold_selected_ranges);
492 register_action(editor, window, Editor::set_mark);
493 register_action(editor, window, Editor::swap_selection_ends);
494 register_action(editor, window, Editor::show_completions);
495 register_action(editor, window, Editor::show_word_completions);
496 register_action(editor, window, Editor::toggle_code_actions);
497 register_action(editor, window, Editor::open_excerpts);
498 register_action(editor, window, Editor::open_excerpts_in_split);
499 register_action(editor, window, Editor::toggle_soft_wrap);
500 register_action(editor, window, Editor::toggle_tab_bar);
501 register_action(editor, window, Editor::toggle_line_numbers);
502 register_action(editor, window, Editor::toggle_relative_line_numbers);
503 register_action(editor, window, Editor::toggle_indent_guides);
504 register_action(editor, window, Editor::toggle_inlay_hints);
505 register_action(editor, window, Editor::toggle_code_lens_action);
506 register_action(editor, window, Editor::toggle_semantic_highlights);
507 register_action(editor, window, Editor::toggle_edit_predictions);
508 if editor.read(cx).diagnostics_enabled() {
509 register_action(editor, window, Editor::toggle_diagnostics);
510 }
511 if editor.read(cx).inline_diagnostics_enabled() {
512 register_action(editor, window, Editor::toggle_inline_diagnostics);
513 }
514 if editor.read(cx).supports_minimap(cx) {
515 register_action(editor, window, Editor::toggle_minimap);
516 }
517 register_action(editor, window, hover_popover::hover);
518 register_action(editor, window, Editor::reveal_in_finder);
519 register_action(editor, window, Editor::copy_path);
520 register_action(editor, window, Editor::copy_relative_path);
521 register_action(editor, window, Editor::copy_file_name);
522 register_action(editor, window, Editor::copy_file_name_without_extension);
523 register_action(editor, window, Editor::copy_highlight_json);
524 register_action(editor, window, Editor::copy_permalink_to_line);
525 register_action(editor, window, Editor::open_permalink_to_line);
526 register_action(editor, window, Editor::copy_file_location);
527 register_action(editor, window, Editor::toggle_git_blame);
528 register_action(editor, window, Editor::toggle_git_blame_inline);
529 register_action(editor, window, Editor::open_git_blame_commit);
530 register_action(editor, window, Editor::toggle_selected_diff_hunks);
531 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
532 register_action(editor, window, Editor::stage_and_next);
533 register_action(editor, window, Editor::unstage_and_next);
534 register_action(editor, window, Editor::expand_all_diff_hunks);
535 register_action(editor, window, Editor::collapse_all_diff_hunks);
536 register_action(editor, window, Editor::toggle_review_comments_expanded);
537 register_action(editor, window, Editor::submit_diff_review_comment_action);
538 register_action(editor, window, Editor::edit_review_comment);
539 register_action(editor, window, Editor::delete_review_comment);
540 register_action(editor, window, Editor::confirm_edit_review_comment_action);
541 register_action(editor, window, Editor::cancel_edit_review_comment_action);
542 register_action(editor, window, Editor::go_to_previous_change);
543 register_action(editor, window, Editor::go_to_next_change);
544 register_action(editor, window, Editor::go_to_prev_reference);
545 register_action(editor, window, Editor::go_to_next_reference);
546 register_action(editor, window, Editor::go_to_previous_symbol);
547 register_action(editor, window, Editor::go_to_next_symbol);
548
549 register_action(editor, window, |editor, action, window, cx| {
550 if let Some(task) = editor.format(action, window, cx) {
551 editor.detach_and_notify_err(task, window, cx);
552 } else {
553 cx.propagate();
554 }
555 });
556 if editor.read(cx).can_format_selections(cx) {
557 register_action(editor, window, |editor, action, window, cx| {
558 if let Some(task) = editor.format_selections(action, window, cx) {
559 editor.detach_and_notify_err(task, window, cx);
560 } else {
561 cx.propagate();
562 }
563 });
564 }
565 register_action(editor, window, |editor, action, window, cx| {
566 if let Some(task) = editor.organize_imports(action, window, cx) {
567 editor.detach_and_notify_err(task, window, cx);
568 } else {
569 cx.propagate();
570 }
571 });
572 register_action(editor, window, Editor::restart_language_server);
573 register_action(editor, window, Editor::stop_language_server);
574 register_action(editor, window, Editor::show_character_palette);
575 register_action(editor, window, |editor, action, window, cx| {
576 if let Some(task) = editor.confirm_completion(action, window, cx) {
577 editor.detach_and_notify_err(task, window, cx);
578 } else {
579 cx.propagate();
580 }
581 });
582 register_action(editor, window, |editor, action, window, cx| {
583 if let Some(task) = editor.confirm_completion_replace(action, window, cx) {
584 editor.detach_and_notify_err(task, window, cx);
585 } else {
586 cx.propagate();
587 }
588 });
589 register_action(editor, window, |editor, action, window, cx| {
590 if let Some(task) = editor.confirm_completion_insert(action, window, cx) {
591 editor.detach_and_notify_err(task, window, cx);
592 } else {
593 cx.propagate();
594 }
595 });
596 register_action(editor, window, |editor, action, window, cx| {
597 if let Some(task) = editor.compose_completion(action, window, cx) {
598 editor.detach_and_notify_err(task, window, cx);
599 } else {
600 cx.propagate();
601 }
602 });
603 register_action(editor, window, |editor, action, window, cx| {
604 if let Some(task) = editor.confirm_code_action(action, window, cx) {
605 editor.detach_and_notify_err(task, window, cx);
606 } else {
607 cx.propagate();
608 }
609 });
610 register_action(editor, window, |editor, action, window, cx| {
611 if let Some(task) = editor.rename(action, window, cx) {
612 editor.detach_and_notify_err(task, window, cx);
613 } else {
614 cx.propagate();
615 }
616 });
617 register_action(editor, window, |editor, action, window, cx| {
618 if let Some(task) = editor.confirm_rename(action, window, cx) {
619 editor.detach_and_notify_err(task, window, cx);
620 } else {
621 cx.propagate();
622 }
623 });
624 register_action(editor, window, |editor, action, window, cx| {
625 if let Some(task) = editor.find_all_references(action, window, cx) {
626 task.detach_and_log_err(cx);
627 } else {
628 cx.propagate();
629 }
630 });
631 register_action(editor, window, Editor::show_signature_help);
632 register_action(editor, window, Editor::signature_help_prev);
633 register_action(editor, window, Editor::signature_help_next);
634 register_action(editor, window, Editor::show_edit_prediction);
635 register_action(editor, window, Editor::context_menu_first);
636 register_action(editor, window, Editor::context_menu_prev);
637 register_action(editor, window, Editor::context_menu_next);
638 register_action(editor, window, Editor::context_menu_last);
639 register_action(editor, window, Editor::display_cursor_names);
640 register_action(editor, window, Editor::unique_lines_case_insensitive);
641 register_action(editor, window, Editor::unique_lines_case_sensitive);
642 register_action(editor, window, Editor::accept_next_word_edit_prediction);
643 register_action(editor, window, Editor::accept_next_line_edit_prediction);
644 register_action(editor, window, Editor::accept_edit_prediction);
645 register_action(editor, window, Editor::restore_file);
646 register_action(editor, window, Editor::git_restore);
647 register_action(editor, window, Editor::restore_and_next);
648 register_action(editor, window, Editor::apply_all_diff_hunks);
649 register_action(editor, window, Editor::apply_selected_diff_hunks);
650 register_action(editor, window, Editor::open_active_item_in_terminal);
651 register_action(editor, window, Editor::reload_file);
652 register_action(editor, window, Editor::spawn_nearest_task);
653 register_action(editor, window, Editor::insert_uuid_v4);
654 register_action(editor, window, Editor::insert_uuid_v7);
655 register_action(editor, window, Editor::open_selections_in_multibuffer);
656 register_action(editor, window, Editor::toggle_bookmark);
657 register_action(editor, window, Editor::go_to_next_bookmark);
658 register_action(editor, window, Editor::go_to_previous_bookmark);
659 register_action(editor, window, Editor::toggle_breakpoint);
660 register_action(editor, window, Editor::edit_log_breakpoint);
661 register_action(editor, window, Editor::enable_breakpoint);
662 register_action(editor, window, Editor::disable_breakpoint);
663 register_action(editor, window, Editor::toggle_read_only);
664 register_action(editor, window, Editor::align_selections);
665 if editor.read(cx).enable_wrap_selections_in_tag(cx) {
666 register_action(editor, window, Editor::wrap_selections_in_tag);
667 }
668 }
669
670 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
671 let position_map = layout.position_map.clone();
672 window.on_key_event({
673 let editor = self.editor.clone();
674 move |event: &ModifiersChangedEvent, phase, window, cx| {
675 if phase != DispatchPhase::Bubble {
676 return;
677 }
678 editor.update(cx, |editor, cx| {
679 let inlay_hint_settings = inlay_hint_settings(
680 editor.selections.newest_anchor().head(),
681 &editor.buffer.read(cx).snapshot(cx),
682 cx,
683 );
684
685 if let Some(inlay_modifiers) = inlay_hint_settings
686 .toggle_on_modifiers_press
687 .as_ref()
688 .filter(|modifiers| modifiers.modified())
689 {
690 editor.refresh_inlay_hints(
691 InlayHintRefreshReason::ModifiersChanged(
692 inlay_modifiers == &event.modifiers,
693 ),
694 cx,
695 );
696 }
697
698 if editor.hover_state.focused(window, cx) {
699 return;
700 }
701
702 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
703 })
704 }
705 });
706 }
707
708 fn mouse_left_down(
709 editor: &mut Editor,
710 event: &MouseDownEvent,
711 position_map: &PositionMap,
712 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
713 window: &mut Window,
714 cx: &mut Context<Editor>,
715 ) {
716 if window.default_prevented() {
717 return;
718 }
719
720 let text_hitbox = &position_map.text_hitbox;
721 let gutter_hitbox = &position_map.gutter_hitbox;
722 let point_for_position = position_map.point_for_position(event.position);
723 let mut click_count = event.click_count;
724 let mut modifiers = event.modifiers;
725
726 if let Some(hovered_hunk) =
727 position_map
728 .display_hunks
729 .iter()
730 .find_map(|(hunk, hunk_hitbox)| match hunk {
731 DisplayDiffHunk::Folded { .. } => None,
732 DisplayDiffHunk::Unfolded {
733 multi_buffer_range, ..
734 } => hunk_hitbox
735 .as_ref()
736 .is_some_and(|hitbox| hitbox.is_hovered(window))
737 .then(|| multi_buffer_range.clone()),
738 })
739 {
740 editor.toggle_single_diff_hunk(hovered_hunk, cx);
741 cx.notify();
742 return;
743 } else if gutter_hitbox.is_hovered(window) {
744 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
745 } else if !text_hitbox.is_hovered(window) {
746 return;
747 }
748
749 if EditorSettings::get_global(cx)
750 .drag_and_drop_selection
751 .enabled
752 && click_count == 1
753 && !modifiers.shift
754 {
755 let newest_anchor = editor.selections.newest_anchor();
756 let snapshot = editor.snapshot(window, cx);
757 let selection = newest_anchor.map(|anchor| anchor.to_display_point(&snapshot));
758 if point_for_position.intersects_selection(&selection) {
759 editor.selection_drag_state = SelectionDragState::ReadyToDrag {
760 selection: newest_anchor.clone(),
761 click_position: event.position,
762 mouse_down_time: Instant::now(),
763 };
764 cx.stop_propagation();
765 return;
766 }
767 }
768
769 let is_singleton = editor.buffer().read(cx).is_singleton();
770
771 if click_count == 2 && !is_singleton {
772 match EditorSettings::get_global(cx).double_click_in_multibuffer {
773 DoubleClickInMultibuffer::Select => {
774 // do nothing special on double click, all selection logic is below
775 }
776 DoubleClickInMultibuffer::Open => {
777 if modifiers.alt {
778 // if double click is made with alt, pretend it's a regular double click without opening and alt,
779 // and run the selection logic.
780 modifiers.alt = false;
781 } else {
782 let scroll_position_row = position_map.scroll_position.y;
783 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
784 / position_map.line_height)
785 as f64
786 + position_map.scroll_position.y)
787 as u32;
788 let multi_buffer_row = position_map
789 .snapshot
790 .display_point_to_point(
791 DisplayPoint::new(DisplayRow(display_row), 0),
792 Bias::Right,
793 )
794 .row;
795 let line_offset_from_top = display_row - scroll_position_row as u32;
796 // if double click is made without alt, open the corresponding excerp
797 editor.open_excerpts_common(
798 Some(JumpData::MultiBufferRow {
799 row: MultiBufferRow(multi_buffer_row),
800 line_offset_from_top,
801 }),
802 false,
803 window,
804 cx,
805 );
806 return;
807 }
808 }
809 }
810 }
811
812 if !is_singleton {
813 let display_row = (ScrollPixelOffset::from(
814 (event.position - gutter_hitbox.bounds.origin).y / position_map.line_height,
815 ) + position_map.scroll_position.y) as u32;
816 let multi_buffer_row = position_map
817 .snapshot
818 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
819 .row;
820 if line_numbers
821 .get(&MultiBufferRow(multi_buffer_row))
822 .is_some_and(|line_layout| {
823 line_layout.segments.iter().any(|segment| {
824 segment
825 .hitbox
826 .as_ref()
827 .is_some_and(|hitbox| hitbox.contains(&event.position))
828 })
829 })
830 {
831 let line_offset_from_top = display_row - position_map.scroll_position.y as u32;
832
833 editor.open_excerpts_common(
834 Some(JumpData::MultiBufferRow {
835 row: MultiBufferRow(multi_buffer_row),
836 line_offset_from_top,
837 }),
838 modifiers.alt,
839 window,
840 cx,
841 );
842 cx.stop_propagation();
843 return;
844 }
845 }
846
847 let position = point_for_position.nearest_valid;
848 if let Some(mode) = Editor::columnar_selection_mode(&modifiers, cx) {
849 editor.select(
850 SelectPhase::BeginColumnar {
851 position,
852 reset: match mode {
853 ColumnarMode::FromMouse => true,
854 ColumnarMode::FromSelection => false,
855 },
856 mode,
857 goal_column: point_for_position.exact_unclipped.column(),
858 },
859 window,
860 cx,
861 );
862 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
863 {
864 editor.select(
865 SelectPhase::Extend {
866 position,
867 click_count,
868 },
869 window,
870 cx,
871 );
872 } else {
873 editor.select(
874 SelectPhase::Begin {
875 position,
876 add: Editor::is_alt_pressed(&modifiers, cx),
877 click_count,
878 },
879 window,
880 cx,
881 );
882 }
883 cx.stop_propagation();
884 }
885
886 fn mouse_right_down(
887 editor: &mut Editor,
888 event: &MouseDownEvent,
889 position_map: &PositionMap,
890 window: &mut Window,
891 cx: &mut Context<Editor>,
892 ) {
893 if position_map.gutter_hitbox.is_hovered(window) {
894 let gutter_right_padding = editor.gutter_dimensions.right_padding;
895 let hitbox = &position_map.gutter_hitbox;
896
897 if event.position.x <= hitbox.bounds.right() - gutter_right_padding
898 && editor.collaboration_hub.is_none()
899 {
900 let point_for_position = position_map.point_for_position(event.position);
901 editor.set_gutter_context_menu(
902 point_for_position.nearest_valid.row(),
903 None,
904 event.position,
905 window,
906 cx,
907 );
908 }
909 return;
910 }
911
912 if !position_map.text_hitbox.is_hovered(window) {
913 return;
914 }
915
916 let point_for_position = position_map.point_for_position(event.position);
917 mouse_context_menu::deploy_context_menu(
918 editor,
919 Some(event.position),
920 point_for_position.nearest_valid,
921 window,
922 cx,
923 );
924 cx.stop_propagation();
925 }
926
927 fn mouse_middle_down(
928 editor: &mut Editor,
929 event: &MouseDownEvent,
930 position_map: &PositionMap,
931 window: &mut Window,
932 cx: &mut Context<Editor>,
933 ) {
934 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
935 return;
936 }
937
938 let point_for_position = position_map.point_for_position(event.position);
939 let position = point_for_position.nearest_valid;
940
941 editor.select(
942 SelectPhase::BeginColumnar {
943 position,
944 reset: true,
945 mode: ColumnarMode::FromMouse,
946 goal_column: point_for_position.exact_unclipped.column(),
947 },
948 window,
949 cx,
950 );
951 }
952
953 fn mouse_up(
954 editor: &mut Editor,
955 event: &MouseUpEvent,
956 position_map: &PositionMap,
957 window: &mut Window,
958 cx: &mut Context<Editor>,
959 ) {
960 // Handle diff review drag completion
961 if editor.diff_review_drag_state.is_some() {
962 editor.end_diff_review_drag(window, cx);
963 cx.stop_propagation();
964 return;
965 }
966
967 let text_hitbox = &position_map.text_hitbox;
968 let end_selection = editor.has_pending_selection();
969 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
970 let point_for_position = position_map.point_for_position(event.position);
971
972 match editor.selection_drag_state {
973 SelectionDragState::ReadyToDrag {
974 selection: _,
975 ref click_position,
976 mouse_down_time: _,
977 } => {
978 if event.position == *click_position {
979 editor.select(
980 SelectPhase::Begin {
981 position: point_for_position.nearest_valid,
982 add: false,
983 click_count: 1, // ready to drag state only occurs on click count 1
984 },
985 window,
986 cx,
987 );
988 editor.selection_drag_state = SelectionDragState::None;
989 cx.stop_propagation();
990 return;
991 } else {
992 debug_panic!("drag state can never be in ready state after drag")
993 }
994 }
995 SelectionDragState::Dragging { ref selection, .. } => {
996 let snapshot = editor.snapshot(window, cx);
997 let selection_display = selection.map(|anchor| anchor.to_display_point(&snapshot));
998 if !point_for_position.intersects_selection(&selection_display)
999 && text_hitbox.is_hovered(window)
1000 {
1001 let is_cut = !(cfg!(target_os = "macos") && event.modifiers.alt
1002 || cfg!(not(target_os = "macos")) && event.modifiers.control);
1003 editor.move_selection_on_drop(
1004 &selection.clone(),
1005 point_for_position.nearest_valid,
1006 is_cut,
1007 window,
1008 cx,
1009 );
1010 }
1011 editor.selection_drag_state = SelectionDragState::None;
1012 cx.stop_propagation();
1013 cx.notify();
1014 return;
1015 }
1016 _ => {}
1017 }
1018
1019 if end_selection {
1020 editor.select(SelectPhase::End, window, cx);
1021 }
1022
1023 if end_selection && pending_nonempty_selections {
1024 cx.stop_propagation();
1025 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
1026 && event.button == MouseButton::Middle
1027 {
1028 #[allow(
1029 clippy::collapsible_if,
1030 clippy::needless_return,
1031 reason = "The cfg-block below makes this a false positive"
1032 )]
1033 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
1034 return;
1035 }
1036
1037 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
1038 if EditorSettings::get_global(cx).middle_click_paste {
1039 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
1040 let point_for_position = position_map.point_for_position(event.position);
1041 let position = point_for_position.nearest_valid;
1042
1043 editor.select(
1044 SelectPhase::Begin {
1045 position,
1046 add: false,
1047 click_count: 1,
1048 },
1049 window,
1050 cx,
1051 );
1052 editor.insert(&text, window, cx);
1053 }
1054 cx.stop_propagation()
1055 }
1056 }
1057 }
1058
1059 fn click(
1060 editor: &mut Editor,
1061 event: &ClickEvent,
1062 position_map: &PositionMap,
1063 window: &mut Window,
1064 cx: &mut Context<Editor>,
1065 ) {
1066 let text_hitbox = &position_map.text_hitbox;
1067 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
1068
1069 let hovered_link_modifier = Editor::is_cmd_or_ctrl_pressed(&event.modifiers(), cx);
1070 let mouse_down_hovered_link_modifier = if let ClickEvent::Mouse(mouse_event) = event {
1071 Editor::is_cmd_or_ctrl_pressed(&mouse_event.down.modifiers, cx)
1072 } else {
1073 true
1074 };
1075
1076 if let Some(mouse_position) = event.mouse_position()
1077 && !pending_nonempty_selections
1078 && hovered_link_modifier
1079 && mouse_down_hovered_link_modifier
1080 && text_hitbox.is_hovered(window)
1081 && !matches!(
1082 editor.selection_drag_state,
1083 SelectionDragState::Dragging { .. }
1084 )
1085 {
1086 let point = position_map.point_for_position(mouse_position);
1087 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
1088 editor.selection_drag_state = SelectionDragState::None;
1089
1090 cx.stop_propagation();
1091 }
1092 }
1093
1094 fn pressure_click(
1095 editor: &mut Editor,
1096 event: &MousePressureEvent,
1097 position_map: &PositionMap,
1098 window: &mut Window,
1099 cx: &mut Context<Editor>,
1100 ) {
1101 let text_hitbox = &position_map.text_hitbox;
1102 let force_click_possible =
1103 matches!(editor.prev_pressure_stage, Some(PressureStage::Normal))
1104 && event.stage == PressureStage::Force;
1105
1106 editor.prev_pressure_stage = Some(event.stage);
1107
1108 if force_click_possible && text_hitbox.is_hovered(window) {
1109 let point = position_map.point_for_position(event.position);
1110 editor.handle_click_hovered_link(point, event.modifiers, window, cx);
1111 editor.selection_drag_state = SelectionDragState::None;
1112 cx.stop_propagation();
1113 }
1114 }
1115
1116 fn mouse_dragged(
1117 editor: &mut Editor,
1118 event: &MouseMoveEvent,
1119 position_map: &PositionMap,
1120 window: &mut Window,
1121 cx: &mut Context<Editor>,
1122 ) {
1123 if !editor.has_pending_selection()
1124 && matches!(editor.selection_drag_state, SelectionDragState::None)
1125 {
1126 return;
1127 }
1128
1129 let point_for_position = position_map.point_for_position(event.position);
1130 let text_hitbox = &position_map.text_hitbox;
1131
1132 let scroll_delta = {
1133 let text_bounds = text_hitbox.bounds;
1134 let mut scroll_delta = gpui::Point::<f32>::default();
1135 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
1136 let top = text_bounds.origin.y + vertical_margin;
1137 let bottom = text_bounds.bottom_left().y - vertical_margin;
1138 if event.position.y < top {
1139 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
1140 }
1141 if event.position.y > bottom {
1142 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
1143 }
1144
1145 // We need horizontal width of text
1146 let style = editor.style.clone().unwrap_or_default();
1147 let font_id = window.text_system().resolve_font(&style.text.font());
1148 let font_size = style.text.font_size.to_pixels(window.rem_size());
1149 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
1150
1151 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
1152
1153 let scroll_space: Pixels = scroll_margin_x * em_width;
1154
1155 let left = text_bounds.origin.x + scroll_space;
1156 let right = text_bounds.top_right().x - scroll_space;
1157
1158 if event.position.x < left {
1159 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
1160 }
1161 if event.position.x > right {
1162 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
1163 }
1164 scroll_delta
1165 };
1166
1167 if !editor.has_pending_selection() {
1168 let drop_anchor = position_map
1169 .snapshot
1170 .display_point_to_anchor(point_for_position.nearest_valid, Bias::Left);
1171 match editor.selection_drag_state {
1172 SelectionDragState::Dragging {
1173 ref mut drop_cursor,
1174 ref mut hide_drop_cursor,
1175 ..
1176 } => {
1177 drop_cursor.start = drop_anchor;
1178 drop_cursor.end = drop_anchor;
1179 *hide_drop_cursor = !text_hitbox.is_hovered(window);
1180 editor.apply_scroll_delta(scroll_delta, window, cx);
1181 cx.notify();
1182 }
1183 SelectionDragState::ReadyToDrag {
1184 ref selection,
1185 ref click_position,
1186 ref mouse_down_time,
1187 } => {
1188 let drag_and_drop_delay = Duration::from_millis(
1189 EditorSettings::get_global(cx)
1190 .drag_and_drop_selection
1191 .delay
1192 .0,
1193 );
1194 if mouse_down_time.elapsed() >= drag_and_drop_delay {
1195 let drop_cursor = Selection {
1196 id: post_inc(&mut editor.selections.next_selection_id()),
1197 start: drop_anchor,
1198 end: drop_anchor,
1199 reversed: false,
1200 goal: SelectionGoal::None,
1201 };
1202 editor.selection_drag_state = SelectionDragState::Dragging {
1203 selection: selection.clone(),
1204 drop_cursor,
1205 hide_drop_cursor: false,
1206 };
1207 editor.apply_scroll_delta(scroll_delta, window, cx);
1208 cx.notify();
1209 } else {
1210 let click_point = position_map.point_for_position(*click_position);
1211 editor.selection_drag_state = SelectionDragState::None;
1212 editor.select(
1213 SelectPhase::Begin {
1214 position: click_point.nearest_valid,
1215 add: false,
1216 click_count: 1,
1217 },
1218 window,
1219 cx,
1220 );
1221 editor.select(
1222 SelectPhase::Update {
1223 position: point_for_position.nearest_valid,
1224 goal_column: point_for_position.exact_unclipped.column(),
1225 scroll_delta,
1226 },
1227 window,
1228 cx,
1229 );
1230 }
1231 }
1232 _ => {}
1233 }
1234 } else {
1235 editor.select(
1236 SelectPhase::Update {
1237 position: point_for_position.nearest_valid,
1238 goal_column: point_for_position.exact_unclipped.column(),
1239 scroll_delta,
1240 },
1241 window,
1242 cx,
1243 );
1244 }
1245 }
1246
1247 pub(crate) fn mouse_moved(
1248 editor: &mut Editor,
1249 event: &MouseMoveEvent,
1250 position_map: &PositionMap,
1251 split_side: Option<SplitSide>,
1252 window: &mut Window,
1253 cx: &mut Context<Editor>,
1254 ) {
1255 let text_hitbox = &position_map.text_hitbox;
1256 let gutter_hitbox = &position_map.gutter_hitbox;
1257 let modifiers = event.modifiers;
1258 let text_hovered = text_hitbox.is_hovered(window);
1259 let gutter_hovered = gutter_hitbox.is_hovered(window);
1260 editor.set_gutter_hovered(gutter_hovered, cx);
1261 editor.show_mouse_cursor(cx);
1262
1263 let point_for_position = position_map.point_for_position(event.position);
1264 let valid_point = point_for_position.nearest_valid;
1265
1266 // Update diff review drag state if we're dragging
1267 if editor.diff_review_drag_state.is_some() {
1268 editor.update_diff_review_drag(valid_point.row(), window, cx);
1269 }
1270
1271 let hovered_diff_control = position_map
1272 .diff_hunk_control_bounds
1273 .iter()
1274 .find(|(_, bounds)| bounds.contains(&event.position))
1275 .map(|(row, _)| *row);
1276
1277 let hovered_diff_hunk_row = if let Some(control_row) = hovered_diff_control {
1278 Some(control_row)
1279 } else if text_hovered {
1280 let current_row = valid_point.row();
1281 position_map.display_hunks.iter().find_map(|(hunk, _)| {
1282 if let DisplayDiffHunk::Unfolded {
1283 display_row_range, ..
1284 } = hunk
1285 {
1286 if display_row_range.contains(¤t_row) {
1287 Some(display_row_range.start)
1288 } else {
1289 None
1290 }
1291 } else {
1292 None
1293 }
1294 })
1295 } else {
1296 None
1297 };
1298
1299 if hovered_diff_hunk_row != editor.hovered_diff_hunk_row {
1300 editor.hovered_diff_hunk_row = hovered_diff_hunk_row;
1301 cx.notify();
1302 }
1303
1304 if text_hovered
1305 && let Some((bounds, buffer_id, blame_entry)) = &position_map.inline_blame_bounds
1306 {
1307 let mouse_over_inline_blame = bounds.contains(&event.position);
1308 let mouse_over_popover = editor
1309 .inline_blame_popover
1310 .as_ref()
1311 .and_then(|state| state.popover_bounds)
1312 .is_some_and(|bounds| bounds.contains(&event.position));
1313 let keyboard_grace = editor
1314 .inline_blame_popover
1315 .as_ref()
1316 .is_some_and(|state| state.keyboard_grace);
1317
1318 if mouse_over_inline_blame || mouse_over_popover {
1319 editor.show_blame_popover(*buffer_id, blame_entry, event.position, false, cx);
1320 } else if !keyboard_grace {
1321 editor.hide_blame_popover(false, cx);
1322 }
1323 } else {
1324 let keyboard_grace = editor
1325 .inline_blame_popover
1326 .as_ref()
1327 .is_some_and(|state| state.keyboard_grace);
1328 if !keyboard_grace {
1329 editor.hide_blame_popover(false, cx);
1330 }
1331 }
1332
1333 // Handle diff review indicator when gutter is hovered in diff mode with AI enabled
1334 let show_diff_review = editor.show_diff_review_button()
1335 && cx.has_flag::<DiffReviewFeatureFlag>()
1336 && !DisableAiSettings::is_ai_disabled_for_buffer(
1337 editor.buffer.read(cx).as_singleton().as_ref(),
1338 cx,
1339 );
1340
1341 let diff_review_indicator = if gutter_hovered && show_diff_review {
1342 let is_visible = editor
1343 .gutter_diff_review_indicator
1344 .0
1345 .is_some_and(|indicator| indicator.is_active);
1346
1347 if !is_visible {
1348 editor
1349 .gutter_diff_review_indicator
1350 .1
1351 .get_or_insert_with(|| {
1352 cx.spawn(async move |this, cx| {
1353 cx.background_executor()
1354 .timer(Duration::from_millis(200))
1355 .await;
1356
1357 this.update(cx, |this, cx| {
1358 if let Some(indicator) =
1359 this.gutter_diff_review_indicator.0.as_mut()
1360 {
1361 indicator.is_active = true;
1362 cx.notify();
1363 }
1364 })
1365 .ok();
1366 })
1367 });
1368 }
1369
1370 let anchor = position_map
1371 .snapshot
1372 .display_point_to_anchor(valid_point, Bias::Left);
1373 Some(PhantomDiffReviewIndicator {
1374 start: anchor,
1375 end: anchor,
1376 is_active: is_visible,
1377 })
1378 } else {
1379 editor.gutter_diff_review_indicator.1 = None;
1380 None
1381 };
1382
1383 if diff_review_indicator != editor.gutter_diff_review_indicator.0 {
1384 editor.gutter_diff_review_indicator.0 = diff_review_indicator;
1385 cx.notify();
1386 }
1387
1388 // Don't show breakpoint indicator when diff review indicator is active on this row
1389 let is_on_diff_review_button_row = diff_review_indicator.is_some_and(|indicator| {
1390 let start_row = indicator
1391 .start
1392 .to_display_point(&position_map.snapshot.display_snapshot)
1393 .row();
1394 indicator.is_active && start_row == valid_point.row()
1395 });
1396
1397 let breakpoint_indicator = if gutter_hovered
1398 && !is_on_diff_review_button_row
1399 && split_side != Some(SplitSide::Left)
1400 {
1401 let buffer_anchor = position_map
1402 .snapshot
1403 .display_point_to_anchor(valid_point, Bias::Left);
1404
1405 if position_map
1406 .snapshot
1407 .buffer_snapshot()
1408 .anchor_to_buffer_anchor(buffer_anchor)
1409 .is_some()
1410 {
1411 let is_visible = editor
1412 .gutter_hover_button
1413 .0
1414 .is_some_and(|indicator| indicator.is_active);
1415
1416 if !is_visible {
1417 editor.gutter_hover_button.1.get_or_insert_with(|| {
1418 cx.spawn(async move |this, cx| {
1419 cx.background_executor()
1420 .timer(Duration::from_millis(200))
1421 .await;
1422
1423 this.update(cx, |this, cx| {
1424 if let Some(indicator) = this.gutter_hover_button.0.as_mut() {
1425 indicator.is_active = true;
1426 cx.notify();
1427 }
1428 })
1429 .ok();
1430 })
1431 });
1432 }
1433
1434 Some(GutterHoverButton {
1435 display_row: valid_point.row(),
1436 is_active: is_visible,
1437 })
1438 } else {
1439 editor.gutter_hover_button.1 = None;
1440 None
1441 }
1442 } else {
1443 editor.gutter_hover_button.1 = None;
1444 None
1445 };
1446
1447 if &breakpoint_indicator != &editor.gutter_hover_button.0 {
1448 editor.gutter_hover_button.0 = breakpoint_indicator;
1449 cx.notify();
1450 }
1451
1452 // Don't trigger hover popover if mouse is hovering over context menu
1453 if text_hovered {
1454 editor.update_hovered_link(
1455 point_for_position,
1456 Some(event.position),
1457 &position_map.snapshot,
1458 modifiers,
1459 window,
1460 cx,
1461 );
1462
1463 if let Some(point) = point_for_position.as_valid() {
1464 let anchor = position_map
1465 .snapshot
1466 .buffer_snapshot()
1467 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
1468 hover_at(editor, Some(anchor), Some(event.position), window, cx);
1469 Self::update_visible_cursor(editor, point, position_map, window, cx);
1470 } else {
1471 editor.update_inlay_link_and_hover_points(
1472 &position_map.snapshot,
1473 point_for_position,
1474 Some(event.position),
1475 modifiers.secondary(),
1476 modifiers.shift,
1477 window,
1478 cx,
1479 );
1480 }
1481 } else {
1482 editor.hide_hovered_link(cx);
1483 hover_at(editor, None, Some(event.position), window, cx);
1484 }
1485 }
1486
1487 fn update_visible_cursor(
1488 editor: &mut Editor,
1489 point: DisplayPoint,
1490 position_map: &PositionMap,
1491 window: &mut Window,
1492 cx: &mut Context<Editor>,
1493 ) {
1494 let snapshot = &position_map.snapshot;
1495 let Some(hub) = editor.collaboration_hub() else {
1496 return;
1497 };
1498 let start = snapshot.display_snapshot.clip_point(
1499 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
1500 Bias::Left,
1501 );
1502 let end = snapshot.display_snapshot.clip_point(
1503 DisplayPoint::new(
1504 point.row(),
1505 (point.column() + 1).min(snapshot.line_len(point.row())),
1506 ),
1507 Bias::Right,
1508 );
1509
1510 let range = snapshot
1511 .buffer_snapshot()
1512 .anchor_before(start.to_point(&snapshot.display_snapshot))
1513 ..snapshot
1514 .buffer_snapshot()
1515 .anchor_after(end.to_point(&snapshot.display_snapshot));
1516
1517 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
1518 return;
1519 };
1520 let key = crate::HoveredCursor {
1521 replica_id: selection.replica_id,
1522 selection_id: selection.selection.id,
1523 };
1524 editor.hovered_cursors.insert(
1525 key.clone(),
1526 cx.spawn_in(window, async move |editor, cx| {
1527 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
1528 editor
1529 .update(cx, |editor, cx| {
1530 editor.hovered_cursors.remove(&key);
1531 cx.notify();
1532 })
1533 .ok();
1534 }),
1535 );
1536 cx.notify()
1537 }
1538
1539 fn layout_selections(
1540 &self,
1541 start_anchor: Anchor,
1542 end_anchor: Anchor,
1543 local_selections: &[Selection<Point>],
1544 snapshot: &EditorSnapshot,
1545 start_row: DisplayRow,
1546 end_row: DisplayRow,
1547 window: &mut Window,
1548 cx: &mut App,
1549 ) -> (
1550 Vec<(PlayerColor, Vec<SelectionLayout>)>,
1551 BTreeMap<DisplayRow, LineHighlightSpec>,
1552 Option<DisplayPoint>,
1553 ) {
1554 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1555 let mut active_rows = BTreeMap::new();
1556 let mut newest_selection_head = None;
1557
1558 let Some(editor_with_selections) = self.editor_with_selections(cx) else {
1559 return (selections, active_rows, newest_selection_head);
1560 };
1561
1562 editor_with_selections.update(cx, |editor, cx| {
1563 if editor.show_local_selections {
1564 let mut layouts = Vec::new();
1565 let newest = editor.selections.newest(&editor.display_snapshot(cx));
1566 for selection in local_selections.iter().cloned() {
1567 let is_empty = selection.start == selection.end;
1568 let is_newest = selection == newest;
1569
1570 let layout = SelectionLayout::new(
1571 selection,
1572 editor.selections.line_mode(),
1573 editor.cursor_offset_on_selection,
1574 editor.cursor_shape,
1575 &snapshot.display_snapshot,
1576 is_newest,
1577 editor.leader_id.is_none(),
1578 None,
1579 );
1580 if is_newest {
1581 newest_selection_head = Some(layout.head);
1582 }
1583
1584 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1585 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1586 {
1587 let contains_non_empty_selection = active_rows
1588 .entry(DisplayRow(row))
1589 .or_insert_with(LineHighlightSpec::default);
1590 contains_non_empty_selection.selection |= !is_empty;
1591 }
1592 layouts.push(layout);
1593 }
1594
1595 let mut player = editor.current_user_player_color(cx);
1596 if !editor.is_focused(window) {
1597 const UNFOCUS_EDITOR_SELECTION_OPACITY: f32 = 0.5;
1598 player.selection = player.selection.opacity(UNFOCUS_EDITOR_SELECTION_OPACITY);
1599 }
1600 selections.push((player, layouts));
1601
1602 if let SelectionDragState::Dragging {
1603 ref selection,
1604 ref drop_cursor,
1605 ref hide_drop_cursor,
1606 } = editor.selection_drag_state
1607 && !hide_drop_cursor
1608 && (drop_cursor
1609 .start
1610 .cmp(&selection.start, &snapshot.buffer_snapshot())
1611 .eq(&Ordering::Less)
1612 || drop_cursor
1613 .end
1614 .cmp(&selection.end, &snapshot.buffer_snapshot())
1615 .eq(&Ordering::Greater))
1616 {
1617 let drag_cursor_layout = SelectionLayout::new(
1618 drop_cursor.clone(),
1619 false,
1620 editor.cursor_offset_on_selection,
1621 CursorShape::Bar,
1622 &snapshot.display_snapshot,
1623 false,
1624 false,
1625 None,
1626 );
1627 let absent_color = cx.theme().players().absent();
1628 selections.push((absent_color, vec![drag_cursor_layout]));
1629 }
1630 }
1631
1632 if let Some(collaboration_hub) = &editor.collaboration_hub {
1633 // When following someone, render the local selections in their color.
1634 if let Some(leader_id) = editor.leader_id {
1635 match leader_id {
1636 CollaboratorId::PeerId(peer_id) => {
1637 if let Some(collaborator) =
1638 collaboration_hub.collaborators(cx).get(&peer_id)
1639 && let Some(participant_index) = collaboration_hub
1640 .user_participant_indices(cx)
1641 .get(&collaborator.user_id)
1642 && let Some((local_selection_style, _)) = selections.first_mut()
1643 {
1644 *local_selection_style = cx
1645 .theme()
1646 .players()
1647 .color_for_participant(participant_index.0);
1648 }
1649 }
1650 CollaboratorId::Agent => {
1651 if let Some((local_selection_style, _)) = selections.first_mut() {
1652 *local_selection_style = cx.theme().players().agent();
1653 }
1654 }
1655 }
1656 }
1657
1658 let mut remote_selections = HashMap::default();
1659 for selection in snapshot.remote_selections_in_range(
1660 &(start_anchor..end_anchor),
1661 collaboration_hub.as_ref(),
1662 cx,
1663 ) {
1664 // Don't re-render the leader's selections, since the local selections
1665 // match theirs.
1666 if Some(selection.collaborator_id) == editor.leader_id {
1667 continue;
1668 }
1669 let key = HoveredCursor {
1670 replica_id: selection.replica_id,
1671 selection_id: selection.selection.id,
1672 };
1673
1674 let is_shown =
1675 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1676
1677 remote_selections
1678 .entry(selection.replica_id)
1679 .or_insert((selection.color, Vec::new()))
1680 .1
1681 .push(SelectionLayout::new(
1682 selection.selection,
1683 selection.line_mode,
1684 editor.cursor_offset_on_selection,
1685 selection.cursor_shape,
1686 &snapshot.display_snapshot,
1687 false,
1688 false,
1689 if is_shown { selection.user_name } else { None },
1690 ));
1691 }
1692
1693 selections.extend(remote_selections.into_values());
1694 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1695 let cursor_offset_on_selection = editor.cursor_offset_on_selection;
1696
1697 let layouts = snapshot
1698 .buffer_snapshot()
1699 .selections_in_range(&(start_anchor..end_anchor), true)
1700 .map(move |(_, line_mode, cursor_shape, selection)| {
1701 SelectionLayout::new(
1702 selection,
1703 line_mode,
1704 cursor_offset_on_selection,
1705 cursor_shape,
1706 &snapshot.display_snapshot,
1707 false,
1708 false,
1709 None,
1710 )
1711 })
1712 .collect::<Vec<_>>();
1713 let player = editor.current_user_player_color(cx);
1714 selections.push((player, layouts));
1715 }
1716 });
1717
1718 #[cfg(debug_assertions)]
1719 Self::layout_debug_ranges(
1720 &mut selections,
1721 start_anchor..end_anchor,
1722 &snapshot.display_snapshot,
1723 cx,
1724 );
1725
1726 (selections, active_rows, newest_selection_head)
1727 }
1728
1729 fn collect_cursors(
1730 &self,
1731 snapshot: &EditorSnapshot,
1732 cx: &mut App,
1733 ) -> Vec<(DisplayPoint, Hsla)> {
1734 let editor = self.editor.read(cx);
1735 let mut cursors = Vec::new();
1736 let mut skip_local = false;
1737 let mut add_cursor = |anchor: Anchor, color| {
1738 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1739 };
1740 // Remote cursors
1741 if let Some(collaboration_hub) = &editor.collaboration_hub {
1742 for remote_selection in snapshot.remote_selections_in_range(
1743 &(Anchor::Min..Anchor::Max),
1744 collaboration_hub.deref(),
1745 cx,
1746 ) {
1747 add_cursor(
1748 remote_selection.selection.head(),
1749 remote_selection.color.cursor,
1750 );
1751 if Some(remote_selection.collaborator_id) == editor.leader_id {
1752 skip_local = true;
1753 }
1754 }
1755 }
1756 // Local cursors
1757 if !skip_local {
1758 let color = cx.theme().players().local().cursor;
1759 editor
1760 .selections
1761 .disjoint_anchors()
1762 .iter()
1763 .for_each(|selection| {
1764 add_cursor(selection.head(), color);
1765 });
1766 if let Some(ref selection) = editor.selections.pending_anchor() {
1767 add_cursor(selection.head(), color);
1768 }
1769 }
1770 cursors
1771 }
1772
1773 fn layout_visible_cursors(
1774 &self,
1775 snapshot: &EditorSnapshot,
1776 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1777 row_block_types: &HashMap<DisplayRow, bool>,
1778 visible_display_row_range: Range<DisplayRow>,
1779 line_layouts: &[LineWithInvisibles],
1780 text_hitbox: &Hitbox,
1781 content_origin: gpui::Point<Pixels>,
1782 scroll_position: gpui::Point<ScrollOffset>,
1783 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
1784 line_height: Pixels,
1785 em_width: Pixels,
1786 em_advance: Pixels,
1787 autoscroll_containing_element: bool,
1788 redacted_ranges: &[Range<DisplayPoint>],
1789 window: &mut Window,
1790 cx: &mut App,
1791 ) -> Vec<CursorLayout> {
1792 let mut autoscroll_bounds = None;
1793 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1794 let mut cursors = Vec::new();
1795
1796 let show_local_cursors = editor.show_local_cursors(window, cx);
1797
1798 for (player_color, selections) in selections {
1799 for selection in selections {
1800 let cursor_position = selection.head;
1801
1802 let in_range = visible_display_row_range.contains(&cursor_position.row());
1803 if (selection.is_local && !show_local_cursors)
1804 || !in_range
1805 || row_block_types.get(&cursor_position.row()) == Some(&true)
1806 {
1807 continue;
1808 }
1809
1810 let cursor_row_layout = &line_layouts
1811 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1812 let cursor_column = cursor_position.column() as usize;
1813
1814 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column)
1815 + cursor_row_layout
1816 .alignment_offset(self.style.text.text_align, text_hitbox.size.width);
1817 let cursor_next_x = cursor_row_layout.x_for_index(cursor_column + 1)
1818 + cursor_row_layout
1819 .alignment_offset(self.style.text.text_align, text_hitbox.size.width);
1820 let mut cell_width = cursor_next_x - cursor_character_x;
1821 if cell_width == Pixels::ZERO {
1822 cell_width = em_advance;
1823 }
1824
1825 let mut block_width = cell_width;
1826 let mut block_text = None;
1827
1828 let is_cursor_in_redacted_range = redacted_ranges
1829 .iter()
1830 .any(|range| range.start <= cursor_position && cursor_position < range.end);
1831
1832 if selection.cursor_shape == CursorShape::Block && !is_cursor_in_redacted_range
1833 {
1834 if let Some(text) = snapshot.grapheme_at(cursor_position).or_else(|| {
1835 if snapshot.is_empty() {
1836 snapshot.placeholder_text().and_then(|s| {
1837 s.graphemes(true).next().map(|s| s.to_string().into())
1838 })
1839 } else {
1840 None
1841 }
1842 }) {
1843 let is_ascii_whitespace_only =
1844 text.as_ref().chars().all(|c| c.is_ascii_whitespace());
1845 let len = text.len();
1846
1847 let mut font = cursor_row_layout
1848 .font_id_for_index(cursor_column)
1849 .and_then(|cursor_font_id| {
1850 window.text_system().get_font_for_id(cursor_font_id)
1851 })
1852 .unwrap_or(self.style.text.font());
1853 font.features = self.style.text.font_features.clone();
1854
1855 // Invert the text color for the block cursor. Ensure that the text
1856 // color is opaque enough to be visible against the background color.
1857 //
1858 // 0.75 is an arbitrary threshold to determine if the background color is
1859 // opaque enough to use as a text color.
1860 //
1861 // TODO: In the future we should ensure themes have a `text_inverse` color.
1862 let color = if cx.theme().colors().editor_background.a < 0.75 {
1863 match cx.theme().appearance {
1864 Appearance::Dark => Hsla::black(),
1865 Appearance::Light => Hsla::white(),
1866 }
1867 } else {
1868 cx.theme().colors().editor_background
1869 };
1870
1871 let shaped = window.text_system().shape_line(
1872 text,
1873 cursor_row_layout.font_size,
1874 &[TextRun {
1875 len,
1876 font,
1877 color,
1878 ..Default::default()
1879 }],
1880 None,
1881 );
1882 if !is_ascii_whitespace_only {
1883 block_width = block_width.max(shaped.width);
1884 }
1885 block_text = Some(shaped);
1886 }
1887 }
1888
1889 let x = cursor_character_x - scroll_pixel_position.x.into();
1890 let y = ((cursor_position.row().as_f64() - scroll_position.y)
1891 * ScrollPixelOffset::from(line_height))
1892 .into();
1893 if selection.is_newest {
1894 editor.pixel_position_of_newest_cursor = Some(point(
1895 text_hitbox.origin.x + x + block_width / 2.,
1896 text_hitbox.origin.y + y + line_height / 2.,
1897 ));
1898
1899 if autoscroll_containing_element {
1900 let top = text_hitbox.origin.y
1901 + ((cursor_position.row().as_f64() - scroll_position.y - 3.)
1902 .max(0.)
1903 * ScrollPixelOffset::from(line_height))
1904 .into();
1905 let left = text_hitbox.origin.x
1906 + ((cursor_position.column() as ScrollOffset
1907 - scroll_position.x
1908 - 3.)
1909 .max(0.)
1910 * ScrollPixelOffset::from(em_width))
1911 .into();
1912
1913 let bottom = text_hitbox.origin.y
1914 + ((cursor_position.row().as_f64() - scroll_position.y + 4.)
1915 * ScrollPixelOffset::from(line_height))
1916 .into();
1917 let right = text_hitbox.origin.x
1918 + ((cursor_position.column() as ScrollOffset - scroll_position.x
1919 + 4.)
1920 * ScrollPixelOffset::from(em_width))
1921 .into();
1922
1923 autoscroll_bounds =
1924 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1925 }
1926 }
1927
1928 let mut cursor = CursorLayout {
1929 color: player_color.cursor,
1930 block_width,
1931 origin: point(x, y),
1932 line_height,
1933 shape: selection.cursor_shape,
1934 block_text,
1935 cursor_name: None,
1936 };
1937 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1938 string: name,
1939 color: self.style.background,
1940 is_top_row: cursor_position.row().0 == 0,
1941 });
1942 cursor.layout(content_origin, cursor_name, window, cx);
1943 cursors.push(cursor);
1944 }
1945 }
1946
1947 cursors
1948 });
1949
1950 if let Some(bounds) = autoscroll_bounds {
1951 window.request_autoscroll(bounds);
1952 }
1953
1954 cursor_layouts
1955 }
1956
1957 fn layout_navigation_overlays(
1958 &self,
1959 snapshot: &EditorSnapshot,
1960 visible_display_row_range: Range<DisplayRow>,
1961 line_layouts: &[LineWithInvisibles],
1962 text_hitbox: &Hitbox,
1963 content_origin: gpui::Point<Pixels>,
1964 scroll_position: gpui::Point<ScrollOffset>,
1965 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
1966 line_height: Pixels,
1967 window: &mut Window,
1968 cx: &mut App,
1969 ) -> Vec<NavigationOverlayPaintCommand> {
1970 let mut overlay_sets = self
1971 .editor
1972 .read(cx)
1973 .navigation_overlay_sets()
1974 .iter()
1975 .map(|(key, overlays)| (*key, overlays.clone()))
1976 .collect::<Vec<_>>();
1977 if overlay_sets.is_empty() {
1978 return Vec::new();
1979 }
1980 overlay_sets.sort_by_key(|(key, _)| *key);
1981
1982 let layout_context = NavigationOverlayLayoutContext {
1983 display_snapshot: &snapshot.display_snapshot,
1984 visible_display_row_range: &visible_display_row_range,
1985 line_layouts,
1986 text_align: self.style.text.text_align,
1987 content_width: text_hitbox.size.width,
1988 content_origin,
1989 scroll_position,
1990 scroll_pixel_position,
1991 line_height,
1992 editor_font: self.style.text.font(),
1993 editor_font_size: self.style.text.font_size.to_pixels(window.rem_size()),
1994 };
1995 let mut navigation_overlay_paint_commands = Vec::new();
1996
1997 for (_, overlays) in overlay_sets {
1998 for overlay in overlays.as_ref() {
1999 Self::layout_navigation_label(
2000 overlay,
2001 &layout_context,
2002 window,
2003 cx,
2004 &mut navigation_overlay_paint_commands,
2005 );
2006 }
2007 }
2008
2009 navigation_overlay_paint_commands
2010 }
2011
2012 fn layout_navigation_label(
2013 overlay: &crate::NavigationTargetOverlay,
2014 context: &NavigationOverlayLayoutContext<'_>,
2015 window: &mut Window,
2016 cx: &mut App,
2017 paint_commands: &mut Vec<NavigationOverlayPaintCommand>,
2018 ) {
2019 let label = &overlay.label;
2020 let label_display_point = overlay
2021 .target_range
2022 .start
2023 .to_display_point(context.display_snapshot);
2024 let label_row = label_display_point.row();
2025 if !context.visible_display_row_range.contains(&label_row) {
2026 return;
2027 }
2028
2029 let row_index = label_row.minus(context.visible_display_row_range.start) as usize;
2030 let row_layout = &context.line_layouts[row_index];
2031 let label_column = label_display_point.column().min(row_layout.len as u32) as usize;
2032 let label_x = row_layout.x_for_index(label_column)
2033 + row_layout.alignment_offset(context.text_align, context.content_width)
2034 - context.scroll_pixel_position.x.into()
2035 + label.x_offset;
2036 let label_y = ((label_row.as_f64() - context.scroll_position.y)
2037 * ScrollPixelOffset::from(context.line_height))
2038 .into();
2039 let label_text_size = (context.editor_font_size * label.scale_factor.max(0.0)).max(px(1.0));
2040 let origin = context.content_origin + point(label_x, label_y);
2041
2042 let mut element = div()
2043 .block_mouse_except_scroll()
2044 .font(context.editor_font.clone())
2045 .text_size(label_text_size)
2046 .text_color(label.text_color)
2047 .line_height(context.line_height)
2048 .child(label.text.clone())
2049 .into_any_element();
2050 element.prepaint_as_root(origin, AvailableSpace::min_size(), window, cx);
2051
2052 paint_commands.push(NavigationOverlayPaintCommand::Label(
2053 NavigationLabelLayout { element, origin },
2054 ));
2055 }
2056
2057 fn layout_scrollbars(
2058 &self,
2059 snapshot: &EditorSnapshot,
2060 scrollbar_layout_information: &ScrollbarLayoutInformation,
2061 content_offset: gpui::Point<Pixels>,
2062 scroll_position: gpui::Point<ScrollOffset>,
2063 non_visible_cursors: bool,
2064 right_margin: Pixels,
2065 editor_width: Pixels,
2066 window: &mut Window,
2067 cx: &mut App,
2068 ) -> Option<EditorScrollbars> {
2069 let show_scrollbars = self.editor.read(cx).show_scrollbars;
2070 if (!show_scrollbars.horizontal && !show_scrollbars.vertical)
2071 || self.style.scrollbar_width.is_zero()
2072 {
2073 return None;
2074 }
2075
2076 // If a drag took place after we started dragging the scrollbar,
2077 // cancel the scrollbar drag.
2078 if cx.has_active_drag() {
2079 self.editor.update(cx, |editor, cx| {
2080 editor.scroll_manager.reset_scrollbar_state(cx)
2081 });
2082 }
2083
2084 let editor_settings = EditorSettings::get_global(cx);
2085 let scrollbar_settings = editor_settings.scrollbar;
2086 let show_scrollbars = match scrollbar_settings.show {
2087 ShowScrollbar::Auto => {
2088 let editor = self.editor.read(cx);
2089 let is_singleton = editor.buffer_kind(cx) == ItemBufferKind::Singleton;
2090 // Git
2091 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot().has_diff_hunks())
2092 ||
2093 // Buffer Search Results
2094 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights(HighlightKey::BufferSearchHighlights))
2095 ||
2096 // Selected Text Occurrences
2097 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights(HighlightKey::SelectedTextHighlight))
2098 ||
2099 // Selected Symbol Occurrences
2100 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights(HighlightKey::DocumentHighlightRead) || editor.has_background_highlights(HighlightKey::DocumentHighlightWrite)))
2101 ||
2102 // Diagnostics
2103 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot().has_diagnostics())
2104 ||
2105 // Cursors out of sight
2106 non_visible_cursors
2107 ||
2108 // Scrollmanager
2109 editor.scroll_manager.scrollbars_visible()
2110 }
2111 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
2112 ShowScrollbar::Always => true,
2113 ShowScrollbar::Never => return None,
2114 };
2115
2116 // The horizontal scrollbar is usually slightly offset to align nicely with
2117 // indent guides. However, this offset is not needed if indent guides are
2118 // disabled for the current editor.
2119 let content_offset = self
2120 .editor
2121 .read(cx)
2122 .show_indent_guides
2123 .is_none_or(|should_show| should_show)
2124 .then_some(content_offset)
2125 .unwrap_or_default();
2126
2127 Some(EditorScrollbars::from_scrollbar_axes(
2128 ScrollbarAxes {
2129 horizontal: scrollbar_settings.axes.horizontal
2130 && self.editor.read(cx).show_scrollbars.horizontal,
2131 vertical: scrollbar_settings.axes.vertical
2132 && self.editor.read(cx).show_scrollbars.vertical,
2133 },
2134 scrollbar_layout_information,
2135 content_offset,
2136 scroll_position,
2137 self.style.scrollbar_width,
2138 right_margin,
2139 editor_width,
2140 show_scrollbars,
2141 self.editor.read(cx).scroll_manager.active_scrollbar_state(),
2142 window,
2143 ))
2144 }
2145
2146 fn layout_minimap(
2147 &self,
2148 snapshot: &EditorSnapshot,
2149 minimap_width: Pixels,
2150 scroll_position: gpui::Point<f64>,
2151 scrollbar_layout_information: &ScrollbarLayoutInformation,
2152 scrollbar_layout: Option<&EditorScrollbars>,
2153 window: &mut Window,
2154 cx: &mut App,
2155 ) -> Option<MinimapLayout> {
2156 let minimap_editor = self.editor.read(cx).minimap().cloned()?;
2157
2158 let minimap_settings = EditorSettings::get_global(cx).minimap;
2159
2160 if minimap_settings.on_active_editor() {
2161 let active_editor = self.editor.read(cx).workspace().and_then(|ws| {
2162 ws.read(cx)
2163 .active_pane()
2164 .read(cx)
2165 .active_item()
2166 .and_then(|i| i.act_as::<Editor>(cx))
2167 });
2168 if active_editor.is_some_and(|e| e != self.editor) {
2169 return None;
2170 }
2171 }
2172
2173 if !snapshot.mode.is_full()
2174 || minimap_width.is_zero()
2175 || matches!(
2176 minimap_settings.show,
2177 ShowMinimap::Auto if scrollbar_layout.is_none_or(|layout| !layout.visible)
2178 )
2179 {
2180 return None;
2181 }
2182
2183 const MINIMAP_AXIS: ScrollbarAxis = ScrollbarAxis::Vertical;
2184
2185 let ScrollbarLayoutInformation {
2186 editor_bounds,
2187 scroll_range,
2188 glyph_grid_cell,
2189 } = scrollbar_layout_information;
2190
2191 let line_height = glyph_grid_cell.height;
2192 let scroll_position = scroll_position.along(MINIMAP_AXIS);
2193
2194 let top_right_anchor = scrollbar_layout
2195 .and_then(|layout| layout.vertical.as_ref())
2196 .map(|vertical_scrollbar| vertical_scrollbar.hitbox.origin)
2197 .unwrap_or_else(|| editor_bounds.top_right());
2198
2199 let thumb_state = self
2200 .editor
2201 .read_with(cx, |editor, _| editor.scroll_manager.minimap_thumb_state());
2202
2203 let show_thumb = match minimap_settings.thumb {
2204 MinimapThumb::Always => true,
2205 MinimapThumb::Hover => thumb_state.is_some(),
2206 };
2207
2208 let minimap_bounds = Bounds::from_anchor_and_size(
2209 gpui::Anchor::TopRight,
2210 top_right_anchor,
2211 size(minimap_width, editor_bounds.size.height),
2212 );
2213 let minimap_line_height = self.get_minimap_line_height(
2214 minimap_editor
2215 .read(cx)
2216 .text_style_refinement
2217 .as_ref()
2218 .and_then(|refinement| refinement.font_size)
2219 .unwrap_or(MINIMAP_FONT_SIZE),
2220 window,
2221 cx,
2222 );
2223 let minimap_height = minimap_bounds.size.height;
2224
2225 let visible_editor_lines = (editor_bounds.size.height / line_height) as f64;
2226 let total_editor_lines = (scroll_range.height / line_height) as f64;
2227 let minimap_lines = (minimap_height / minimap_line_height) as f64;
2228
2229 let minimap_scroll_top = MinimapLayout::calculate_minimap_top_offset(
2230 total_editor_lines,
2231 visible_editor_lines,
2232 minimap_lines,
2233 scroll_position,
2234 );
2235
2236 let layout = ScrollbarLayout::for_minimap(
2237 window.insert_hitbox(minimap_bounds, HitboxBehavior::Normal),
2238 visible_editor_lines,
2239 total_editor_lines,
2240 minimap_line_height,
2241 scroll_position,
2242 minimap_scroll_top,
2243 show_thumb,
2244 )
2245 .with_thumb_state(thumb_state);
2246
2247 minimap_editor.update(cx, |editor, cx| {
2248 editor.set_scroll_position(point(0., minimap_scroll_top), window, cx)
2249 });
2250
2251 // Required for the drop shadow to be visible
2252 const PADDING_OFFSET: Pixels = px(4.);
2253
2254 let mut minimap = div()
2255 .size_full()
2256 .shadow_xs()
2257 .px(PADDING_OFFSET)
2258 .child(minimap_editor)
2259 .into_any_element();
2260
2261 let extended_bounds = minimap_bounds.extend(Edges {
2262 right: PADDING_OFFSET,
2263 left: PADDING_OFFSET,
2264 ..Default::default()
2265 });
2266 minimap.layout_as_root(extended_bounds.size.into(), window, cx);
2267 window.with_absolute_element_offset(extended_bounds.origin, |window| {
2268 minimap.prepaint(window, cx)
2269 });
2270
2271 Some(MinimapLayout {
2272 minimap,
2273 thumb_layout: layout,
2274 thumb_border_style: minimap_settings.thumb_border,
2275 minimap_line_height,
2276 minimap_scroll_top,
2277 max_scroll_top: total_editor_lines,
2278 })
2279 }
2280
2281 fn get_minimap_line_height(
2282 &self,
2283 font_size: AbsoluteLength,
2284 window: &mut Window,
2285 cx: &mut App,
2286 ) -> Pixels {
2287 let rem_size = self.rem_size(cx).unwrap_or(window.rem_size());
2288 let mut text_style = self.style.text.clone();
2289 text_style.font_size = font_size;
2290 text_style.line_height_in_pixels(rem_size)
2291 }
2292
2293 fn get_minimap_width(
2294 &self,
2295 minimap_settings: &Minimap,
2296 scrollbars_shown: bool,
2297 text_width: Pixels,
2298 em_width: Pixels,
2299 font_size: Pixels,
2300 rem_size: Pixels,
2301 cx: &App,
2302 ) -> Option<Pixels> {
2303 if minimap_settings.show == ShowMinimap::Auto && !scrollbars_shown {
2304 return None;
2305 }
2306
2307 let minimap_font_size = self.editor.read_with(cx, |editor, cx| {
2308 editor.minimap().map(|minimap_editor| {
2309 minimap_editor
2310 .read(cx)
2311 .text_style_refinement
2312 .as_ref()
2313 .and_then(|refinement| refinement.font_size)
2314 .unwrap_or(MINIMAP_FONT_SIZE)
2315 })
2316 })?;
2317
2318 let minimap_em_width = em_width * (minimap_font_size.to_pixels(rem_size) / font_size);
2319
2320 let minimap_width = (text_width * MinimapLayout::MINIMAP_WIDTH_PCT)
2321 .min(minimap_em_width * minimap_settings.max_width_columns.get() as f32);
2322
2323 (minimap_width >= minimap_em_width * MinimapLayout::MINIMAP_MIN_WIDTH_COLUMNS)
2324 .then_some(minimap_width)
2325 }
2326
2327 fn prepaint_crease_toggles(
2328 &self,
2329 crease_toggles: &mut [Option<AnyElement>],
2330 line_height: Pixels,
2331 gutter_dimensions: &GutterDimensions,
2332 gutter_settings: crate::editor_settings::Gutter,
2333 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2334 gutter_hitbox: &Hitbox,
2335 window: &mut Window,
2336 cx: &mut App,
2337 ) {
2338 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
2339 if let Some(crease_toggle) = crease_toggle {
2340 debug_assert!(gutter_settings.folds);
2341 let available_space = size(
2342 AvailableSpace::MinContent,
2343 AvailableSpace::Definite(line_height * 0.55),
2344 );
2345 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
2346
2347 let position = point(
2348 gutter_dimensions.width - gutter_dimensions.right_padding,
2349 ix as f32 * line_height
2350 - (scroll_pixel_position.y % ScrollPixelOffset::from(line_height)).into(),
2351 );
2352 let centering_offset = point(
2353 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
2354 (line_height - crease_toggle_size.height) / 2.,
2355 );
2356 let origin = gutter_hitbox.origin + position + centering_offset;
2357 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
2358 }
2359 }
2360 }
2361
2362 fn prepaint_expand_toggles(
2363 &self,
2364 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
2365 window: &mut Window,
2366 cx: &mut App,
2367 ) {
2368 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
2369 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
2370 expand_toggle.layout_as_root(available_space, window, cx);
2371 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
2372 }
2373 }
2374
2375 fn prepaint_crease_trailers(
2376 &self,
2377 trailers: Vec<Option<AnyElement>>,
2378 lines: &[LineWithInvisibles],
2379 line_height: Pixels,
2380 content_origin: gpui::Point<Pixels>,
2381 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2382 em_width: Pixels,
2383 window: &mut Window,
2384 cx: &mut App,
2385 ) -> Vec<Option<CreaseTrailerLayout>> {
2386 trailers
2387 .into_iter()
2388 .enumerate()
2389 .map(|(ix, element)| {
2390 let mut element = element?;
2391 let available_space = size(
2392 AvailableSpace::MinContent,
2393 AvailableSpace::Definite(line_height),
2394 );
2395 let size = element.layout_as_root(available_space, window, cx);
2396
2397 let line = &lines[ix];
2398 let padding = if line.width == Pixels::ZERO {
2399 Pixels::ZERO
2400 } else {
2401 4. * em_width
2402 };
2403 let position = point(
2404 Pixels::from(scroll_pixel_position.x) + line.width + padding,
2405 ix as f32 * line_height
2406 - (scroll_pixel_position.y % ScrollPixelOffset::from(line_height)).into(),
2407 );
2408 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
2409 let origin = content_origin + position + centering_offset;
2410 element.prepaint_as_root(origin, available_space, window, cx);
2411 Some(CreaseTrailerLayout {
2412 element,
2413 bounds: Bounds::new(origin, size),
2414 })
2415 })
2416 .collect()
2417 }
2418
2419 // Folds contained in a hunk are ignored apart from shrinking visual size
2420 // If a fold contains any hunks then that fold line is marked as modified
2421 fn layout_gutter_diff_hunks(
2422 &self,
2423 line_height: Pixels,
2424 gutter_hitbox: &Hitbox,
2425 display_rows: Range<DisplayRow>,
2426 snapshot: &EditorSnapshot,
2427 window: &mut Window,
2428 cx: &mut App,
2429 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
2430 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
2431 let mut display_hunks = snapshot
2432 .display_diff_hunks_for_rows(display_rows, folded_buffers)
2433 .map(|hunk| (hunk, None))
2434 .collect::<Vec<_>>();
2435 let git_gutter_setting = ProjectSettings::get_global(cx).git.git_gutter;
2436 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
2437 for (hunk, hitbox) in &mut display_hunks {
2438 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
2439 let hunk_bounds =
2440 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
2441 *hitbox = Some(window.insert_hitbox(hunk_bounds, HitboxBehavior::BlockMouse));
2442 }
2443 }
2444 }
2445
2446 display_hunks
2447 }
2448
2449 fn layout_inline_diagnostics(
2450 &self,
2451 line_layouts: &[LineWithInvisibles],
2452 crease_trailers: &[Option<CreaseTrailerLayout>],
2453 row_block_types: &HashMap<DisplayRow, bool>,
2454 content_origin: gpui::Point<Pixels>,
2455 scroll_position: gpui::Point<ScrollOffset>,
2456 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2457 edit_prediction_popover_origin: Option<gpui::Point<Pixels>>,
2458 start_row: DisplayRow,
2459 end_row: DisplayRow,
2460 line_height: Pixels,
2461 em_width: Pixels,
2462 style: &EditorStyle,
2463 window: &mut Window,
2464 cx: &mut App,
2465 ) -> HashMap<DisplayRow, AnyElement> {
2466 let max_severity = match self
2467 .editor
2468 .read(cx)
2469 .inline_diagnostics_enabled()
2470 .then(|| {
2471 ProjectSettings::get_global(cx)
2472 .diagnostics
2473 .inline
2474 .max_severity
2475 .unwrap_or_else(|| self.editor.read(cx).diagnostics_max_severity)
2476 .into_lsp()
2477 })
2478 .flatten()
2479 {
2480 Some(max_severity) => max_severity,
2481 None => return HashMap::default(),
2482 };
2483
2484 let active_diagnostics_group =
2485 if let ActiveDiagnostic::Group(group) = &self.editor.read(cx).active_diagnostics {
2486 Some(group.group_id)
2487 } else {
2488 None
2489 };
2490
2491 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
2492 let snapshot = editor.snapshot(window, cx);
2493 editor
2494 .inline_diagnostics
2495 .iter()
2496 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
2497 .filter(|(_, diagnostic)| match active_diagnostics_group {
2498 Some(active_diagnostics_group) => {
2499 // Active diagnostics are all shown in the editor already, no need to display them inline
2500 diagnostic.group_id != active_diagnostics_group
2501 }
2502 None => true,
2503 })
2504 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
2505 .skip_while(|(point, _)| point.row() < start_row)
2506 .take_while(|(point, _)| point.row() < end_row)
2507 .filter(|(point, _)| !row_block_types.contains_key(&point.row()))
2508 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
2509 acc.entry(point.row())
2510 .or_insert_with(Vec::new)
2511 .push(diagnostic);
2512 acc
2513 })
2514 });
2515
2516 if diagnostics_by_rows.is_empty() {
2517 return HashMap::default();
2518 }
2519
2520 let severity_to_color = |sev: &lsp::DiagnosticSeverity| match sev {
2521 &lsp::DiagnosticSeverity::ERROR => Color::Error,
2522 &lsp::DiagnosticSeverity::WARNING => Color::Warning,
2523 &lsp::DiagnosticSeverity::INFORMATION => Color::Info,
2524 &lsp::DiagnosticSeverity::HINT => Color::Hint,
2525 _ => Color::Error,
2526 };
2527
2528 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
2529 let min_x = column_pixels(
2530 &self.style,
2531 ProjectSettings::get_global(cx)
2532 .diagnostics
2533 .inline
2534 .min_column as usize,
2535 window,
2536 );
2537
2538 let mut elements = HashMap::default();
2539 for (row, mut diagnostics) in diagnostics_by_rows {
2540 diagnostics.sort_by_key(|diagnostic| {
2541 (
2542 diagnostic.severity,
2543 std::cmp::Reverse(diagnostic.is_primary),
2544 diagnostic.start.row,
2545 diagnostic.start.column,
2546 )
2547 });
2548
2549 let Some(diagnostic_to_render) = diagnostics
2550 .iter()
2551 .find(|diagnostic| diagnostic.is_primary)
2552 .or_else(|| diagnostics.first())
2553 else {
2554 continue;
2555 };
2556
2557 let pos_y = content_origin.y + line_height * (row.0 as f64 - scroll_position.y) as f32;
2558
2559 let window_ix = row.0.saturating_sub(start_row.0) as usize;
2560 let pos_x = {
2561 let crease_trailer_layout = &crease_trailers[window_ix];
2562 let line_layout = &line_layouts[window_ix];
2563
2564 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
2565 crease_trailer.bounds.right()
2566 } else {
2567 Pixels::from(
2568 ScrollPixelOffset::from(content_origin.x + line_layout.width)
2569 - scroll_pixel_position.x,
2570 )
2571 };
2572
2573 let padded_line = line_end + padding;
2574 let min_start = Pixels::from(
2575 ScrollPixelOffset::from(content_origin.x + min_x) - scroll_pixel_position.x,
2576 );
2577
2578 cmp::max(padded_line, min_start)
2579 };
2580
2581 let behind_edit_prediction_popover = edit_prediction_popover_origin
2582 .as_ref()
2583 .is_some_and(|edit_prediction_popover_origin| {
2584 (pos_y..pos_y + line_height).contains(&edit_prediction_popover_origin.y)
2585 });
2586 let opacity = if behind_edit_prediction_popover {
2587 0.5
2588 } else {
2589 1.0
2590 };
2591
2592 let mut element = h_flex()
2593 .id(("diagnostic", row.0))
2594 .h(line_height)
2595 .w_full()
2596 .px_1()
2597 .rounded_xs()
2598 .opacity(opacity)
2599 .bg(severity_to_color(&diagnostic_to_render.severity)
2600 .color(cx)
2601 .opacity(0.05))
2602 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
2603 .text_sm()
2604 .font(style.text.font())
2605 .child(diagnostic_to_render.message.clone())
2606 .into_any();
2607
2608 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
2609
2610 elements.insert(row, element);
2611 }
2612
2613 elements
2614 }
2615
2616 fn layout_inline_code_actions(
2617 &self,
2618 display_point: DisplayPoint,
2619 content_origin: gpui::Point<Pixels>,
2620 scroll_position: gpui::Point<ScrollOffset>,
2621 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2622 line_height: Pixels,
2623 snapshot: &EditorSnapshot,
2624 window: &mut Window,
2625 cx: &mut App,
2626 ) -> Option<AnyElement> {
2627 // Don't show code actions in split diff view
2628 if self.split_side.is_some() {
2629 return None;
2630 }
2631
2632 if !snapshot
2633 .show_code_actions
2634 .unwrap_or(EditorSettings::get_global(cx).inline_code_actions)
2635 {
2636 return None;
2637 }
2638
2639 let icon_size = ui::IconSize::XSmall;
2640 let mut button = self.editor.update(cx, |editor, cx| {
2641 if !editor.has_available_code_actions_for_selection() {
2642 return None;
2643 }
2644 let active = editor
2645 .context_menu
2646 .borrow()
2647 .as_ref()
2648 .and_then(|menu| {
2649 if let crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2650 deployed_from,
2651 ..
2652 }) = menu
2653 {
2654 deployed_from.as_ref()
2655 } else {
2656 None
2657 }
2658 })
2659 .is_some_and(|source| matches!(source, CodeActionSource::Indicator(..)));
2660 Some(editor.render_inline_code_actions(icon_size, display_point.row(), active, cx))
2661 })?;
2662
2663 let buffer_point = display_point.to_point(&snapshot.display_snapshot);
2664
2665 // do not show code action for folded line
2666 if snapshot.is_line_folded(MultiBufferRow(buffer_point.row)) {
2667 return None;
2668 }
2669
2670 // do not show code action for blank line with cursor
2671 let line_indent = snapshot
2672 .display_snapshot
2673 .buffer_snapshot()
2674 .line_indent_for_row(MultiBufferRow(buffer_point.row));
2675 if line_indent.is_line_blank() {
2676 return None;
2677 }
2678
2679 const INLINE_SLOT_CHAR_LIMIT: u32 = 4;
2680 const MAX_ALTERNATE_DISTANCE: u32 = 8;
2681
2682 let is_valid_row = |row_candidate: u32| -> bool {
2683 // move to other row if folded row
2684 if snapshot.is_line_folded(MultiBufferRow(row_candidate)) {
2685 return false;
2686 }
2687 if buffer_point.row == row_candidate {
2688 // move to other row if cursor is in slot
2689 if buffer_point.column < INLINE_SLOT_CHAR_LIMIT {
2690 return false;
2691 }
2692 } else {
2693 let candidate_point = MultiBufferPoint {
2694 row: row_candidate,
2695 column: 0,
2696 };
2697 // move to other row if different excerpt
2698 let range = if candidate_point < buffer_point {
2699 candidate_point..buffer_point
2700 } else {
2701 buffer_point..candidate_point
2702 };
2703 if snapshot
2704 .display_snapshot
2705 .buffer_snapshot()
2706 .excerpt_containing(range)
2707 .is_none()
2708 {
2709 return false;
2710 }
2711 }
2712 let line_indent = snapshot
2713 .display_snapshot
2714 .buffer_snapshot()
2715 .line_indent_for_row(MultiBufferRow(row_candidate));
2716 // use this row if it's blank
2717 if line_indent.is_line_blank() {
2718 true
2719 } else {
2720 // use this row if code starts after slot
2721 let indent_size = snapshot
2722 .display_snapshot
2723 .buffer_snapshot()
2724 .indent_size_for_line(MultiBufferRow(row_candidate));
2725 indent_size.len >= INLINE_SLOT_CHAR_LIMIT
2726 }
2727 };
2728
2729 let new_buffer_row = if is_valid_row(buffer_point.row) {
2730 Some(buffer_point.row)
2731 } else {
2732 let max_row = snapshot.display_snapshot.buffer_snapshot().max_point().row;
2733 (1..=MAX_ALTERNATE_DISTANCE).find_map(|offset| {
2734 let row_above = buffer_point.row.saturating_sub(offset);
2735 let row_below = buffer_point.row + offset;
2736 if row_above != buffer_point.row && is_valid_row(row_above) {
2737 Some(row_above)
2738 } else if row_below <= max_row && is_valid_row(row_below) {
2739 Some(row_below)
2740 } else {
2741 None
2742 }
2743 })
2744 }?;
2745
2746 let new_display_row = snapshot
2747 .display_snapshot
2748 .point_to_display_point(
2749 Point {
2750 row: new_buffer_row,
2751 column: buffer_point.column,
2752 },
2753 text::Bias::Left,
2754 )
2755 .row();
2756
2757 let start_y = content_origin.y
2758 + (((new_display_row.as_f64() - scroll_position.y) as f32) * line_height)
2759 + (line_height / 2.0)
2760 - (icon_size.square(window, cx) / 2.);
2761 let start_x = (ScrollPixelOffset::from(content_origin.x) - scroll_pixel_position.x
2762 + ScrollPixelOffset::from(window.rem_size() * 0.1))
2763 .into();
2764
2765 let absolute_offset = gpui::point(start_x, start_y);
2766 button.layout_as_root(gpui::AvailableSpace::min_size(), window, cx);
2767 button.prepaint_as_root(
2768 absolute_offset,
2769 gpui::AvailableSpace::min_size(),
2770 window,
2771 cx,
2772 );
2773 Some(button)
2774 }
2775
2776 fn layout_inline_blame(
2777 &self,
2778 display_row: DisplayRow,
2779 row_info: &RowInfo,
2780 line_layout: &LineWithInvisibles,
2781 crease_trailer: Option<&CreaseTrailerLayout>,
2782 em_width: Pixels,
2783 content_origin: gpui::Point<Pixels>,
2784 scroll_position: gpui::Point<ScrollOffset>,
2785 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2786 line_height: Pixels,
2787 window: &mut Window,
2788 cx: &mut App,
2789 ) -> Option<InlineBlameLayout> {
2790 if !self
2791 .editor
2792 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
2793 {
2794 return None;
2795 }
2796
2797 let editor = self.editor.read(cx);
2798 let blame = editor.blame.clone()?;
2799 let padding = {
2800 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
2801
2802 let mut padding = ProjectSettings::get_global(cx).git.inline_blame.padding as f32;
2803
2804 if let Some(edit_prediction) = editor.active_edit_prediction.as_ref()
2805 && let EditPrediction::Edit {
2806 display_mode: EditDisplayMode::TabAccept,
2807 ..
2808 } = &edit_prediction.completion
2809 {
2810 padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS
2811 }
2812
2813 padding * em_width
2814 };
2815
2816 let (buffer_id, entry) = blame
2817 .update(cx, |blame, cx| {
2818 blame.blame_for_rows(&[*row_info], cx).next()
2819 })
2820 .flatten()?;
2821
2822 let mut element = render_inline_blame_entry(entry.clone(), &self.style, cx)?;
2823
2824 let start_y =
2825 content_origin.y + line_height * ((display_row.as_f64() - scroll_position.y) as f32);
2826
2827 let start_x = {
2828 let line_end = if let Some(crease_trailer) = crease_trailer {
2829 crease_trailer.bounds.right()
2830 } else {
2831 Pixels::from(
2832 ScrollPixelOffset::from(content_origin.x + line_layout.width)
2833 - scroll_pixel_position.x,
2834 )
2835 };
2836
2837 let padded_line_end = line_end + padding;
2838
2839 let min_column_in_pixels = column_pixels(
2840 &self.style,
2841 ProjectSettings::get_global(cx).git.inline_blame.min_column as usize,
2842 window,
2843 );
2844 let min_start = Pixels::from(
2845 ScrollPixelOffset::from(content_origin.x + min_column_in_pixels)
2846 - scroll_pixel_position.x,
2847 );
2848
2849 cmp::max(padded_line_end, min_start)
2850 };
2851
2852 let absolute_offset = point(start_x, start_y);
2853 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2854 let bounds = Bounds::new(absolute_offset, size);
2855
2856 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
2857
2858 Some(InlineBlameLayout {
2859 element,
2860 bounds,
2861 buffer_id,
2862 entry,
2863 })
2864 }
2865
2866 fn layout_blame_popover(
2867 &self,
2868 editor_snapshot: &EditorSnapshot,
2869 text_hitbox: &Hitbox,
2870 line_height: Pixels,
2871 window: &mut Window,
2872 cx: &mut App,
2873 ) {
2874 if !self.editor.read(cx).inline_blame_popover.is_some() {
2875 return;
2876 }
2877
2878 let Some(blame) = self.editor.read(cx).blame.clone() else {
2879 return;
2880 };
2881 let cursor_point = self
2882 .editor
2883 .read(cx)
2884 .selections
2885 .newest::<language::Point>(&editor_snapshot.display_snapshot)
2886 .head();
2887
2888 let Some((buffer, buffer_point)) = editor_snapshot
2889 .buffer_snapshot()
2890 .point_to_buffer_point(cursor_point)
2891 else {
2892 return;
2893 };
2894
2895 let row_info = RowInfo {
2896 buffer_id: Some(buffer.remote_id()),
2897 buffer_row: Some(buffer_point.row),
2898 ..Default::default()
2899 };
2900
2901 let Some((buffer_id, blame_entry)) = blame
2902 .update(cx, |blame, cx| blame.blame_for_rows(&[row_info], cx).next())
2903 .flatten()
2904 else {
2905 return;
2906 };
2907
2908 let Some((popover_state, target_point)) = self.editor.read_with(cx, |editor, _| {
2909 editor
2910 .inline_blame_popover
2911 .as_ref()
2912 .map(|state| (state.popover_state.clone(), state.position))
2913 }) else {
2914 return;
2915 };
2916
2917 let workspace = self
2918 .editor
2919 .read_with(cx, |editor, _| editor.workspace().map(|w| w.downgrade()));
2920
2921 let maybe_element = workspace.and_then(|workspace| {
2922 render_blame_entry_popover(
2923 blame_entry,
2924 popover_state.scroll_handle,
2925 popover_state.commit_message,
2926 popover_state.markdown,
2927 workspace,
2928 &blame,
2929 buffer_id,
2930 window,
2931 cx,
2932 )
2933 });
2934
2935 if let Some(mut element) = maybe_element {
2936 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2937 let overall_height = size.height + HOVER_POPOVER_GAP;
2938 let popover_origin = if target_point.y > overall_height {
2939 point(target_point.x, target_point.y - size.height)
2940 } else {
2941 point(
2942 target_point.x,
2943 target_point.y + line_height + HOVER_POPOVER_GAP,
2944 )
2945 };
2946
2947 let horizontal_offset = (text_hitbox.top_right().x
2948 - POPOVER_RIGHT_OFFSET
2949 - (popover_origin.x + size.width))
2950 .min(Pixels::ZERO);
2951
2952 let origin = point(popover_origin.x + horizontal_offset, popover_origin.y);
2953 let popover_bounds = Bounds::new(origin, size);
2954
2955 self.editor.update(cx, |editor, _| {
2956 if let Some(state) = &mut editor.inline_blame_popover {
2957 state.popover_bounds = Some(popover_bounds);
2958 }
2959 });
2960
2961 window.defer_draw(element, origin, 2, None);
2962 }
2963 }
2964
2965 fn layout_blame_entries(
2966 &self,
2967 buffer_rows: &[RowInfo],
2968 em_width: Pixels,
2969 scroll_position: gpui::Point<ScrollOffset>,
2970 line_height: Pixels,
2971 gutter_hitbox: &Hitbox,
2972 max_width: Option<Pixels>,
2973 window: &mut Window,
2974 cx: &mut App,
2975 ) -> Option<Vec<AnyElement>> {
2976 if !self
2977 .editor
2978 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
2979 {
2980 return None;
2981 }
2982
2983 let blame = self.editor.read(cx).blame.clone()?;
2984 let workspace = self.editor.read(cx).workspace()?;
2985 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
2986 blame.blame_for_rows(buffer_rows, cx).collect()
2987 });
2988
2989 let width = if let Some(max_width) = max_width {
2990 AvailableSpace::Definite(max_width)
2991 } else {
2992 AvailableSpace::MaxContent
2993 };
2994 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
2995 let start_x = em_width;
2996
2997 let mut last_used_color: Option<(Hsla, Oid)> = None;
2998 let blame_renderer = cx.global::<GlobalBlameRenderer>().0.clone();
2999
3000 let shaped_lines = blamed_rows
3001 .into_iter()
3002 .enumerate()
3003 .flat_map(|(ix, blame_entry)| {
3004 let (buffer_id, blame_entry) = blame_entry?;
3005 let mut element = render_blame_entry(
3006 ix,
3007 &blame,
3008 blame_entry,
3009 &self.style,
3010 &mut last_used_color,
3011 self.editor.clone(),
3012 workspace.clone(),
3013 buffer_id,
3014 &*blame_renderer,
3015 window,
3016 cx,
3017 )?;
3018
3019 let start_y = ix as f32 * line_height
3020 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height));
3021 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
3022
3023 element.prepaint_as_root(
3024 absolute_offset,
3025 size(width, AvailableSpace::MinContent),
3026 window,
3027 cx,
3028 );
3029
3030 Some(element)
3031 })
3032 .collect();
3033
3034 Some(shaped_lines)
3035 }
3036
3037 fn layout_indent_guides(
3038 &self,
3039 content_origin: gpui::Point<Pixels>,
3040 text_origin: gpui::Point<Pixels>,
3041 visible_buffer_range: Range<MultiBufferRow>,
3042 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
3043 line_height: Pixels,
3044 snapshot: &DisplaySnapshot,
3045 window: &mut Window,
3046 cx: &mut App,
3047 ) -> Option<Vec<IndentGuideLayout>> {
3048 let indent_guides = self.editor.update(cx, |editor, cx| {
3049 editor.indent_guides(visible_buffer_range, snapshot, cx)
3050 })?;
3051
3052 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
3053 editor
3054 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
3055 .unwrap_or_default()
3056 });
3057
3058 Some(
3059 indent_guides
3060 .into_iter()
3061 .enumerate()
3062 .filter_map(|(i, indent_guide)| {
3063 let single_indent_width =
3064 column_pixels(&self.style, indent_guide.tab_size as usize, window);
3065 let total_width = single_indent_width * indent_guide.depth as f32;
3066 let start_x = Pixels::from(
3067 ScrollOffset::from(content_origin.x + total_width)
3068 - scroll_pixel_position.x,
3069 );
3070 if start_x >= text_origin.x {
3071 let (offset_y, length, display_row_range) =
3072 Self::calculate_indent_guide_bounds(
3073 indent_guide.start_row..indent_guide.end_row,
3074 line_height,
3075 snapshot,
3076 );
3077
3078 let start_y = Pixels::from(
3079 ScrollOffset::from(content_origin.y) + offset_y
3080 - scroll_pixel_position.y,
3081 );
3082
3083 Some(IndentGuideLayout {
3084 origin: point(start_x, start_y),
3085 length,
3086 single_indent_width,
3087 display_row_range,
3088 depth: indent_guide.depth,
3089 active: active_indent_guide_indices.contains(&i),
3090 settings: indent_guide.settings,
3091 })
3092 } else {
3093 None
3094 }
3095 })
3096 .collect(),
3097 )
3098 }
3099
3100 fn depth_zero_indent_guide_padding_for_row(
3101 indent_guides: &[IndentGuideLayout],
3102 row: DisplayRow,
3103 ) -> Pixels {
3104 indent_guides
3105 .iter()
3106 .find(|guide| guide.depth == 0 && guide.display_row_range.contains(&row))
3107 .and_then(|guide| {
3108 guide
3109 .settings
3110 .visible_line_width(guide.active)
3111 .map(|width| px(width as f32 * 2.0))
3112 })
3113 .unwrap_or(px(0.0))
3114 }
3115
3116 fn layout_wrap_guides(
3117 &self,
3118 em_advance: Pixels,
3119 scroll_position: gpui::Point<f64>,
3120 content_origin: gpui::Point<Pixels>,
3121 scrollbar_layout: Option<&EditorScrollbars>,
3122 vertical_scrollbar_width: Pixels,
3123 hitbox: &Hitbox,
3124 window: &Window,
3125 cx: &App,
3126 ) -> SmallVec<[(Pixels, bool); 2]> {
3127 let scroll_left = scroll_position.x as f32 * em_advance;
3128 let content_origin = content_origin.x;
3129 let horizontal_offset = content_origin - scroll_left;
3130 let vertical_scrollbar_width = scrollbar_layout
3131 .and_then(|layout| layout.visible.then_some(vertical_scrollbar_width))
3132 .unwrap_or_default();
3133
3134 self.editor
3135 .read(cx)
3136 .wrap_guides(cx)
3137 .into_iter()
3138 .flat_map(|(guide, active)| {
3139 let wrap_position = column_pixels(&self.style, guide, window);
3140 let wrap_guide_x = wrap_position + horizontal_offset;
3141 let display_wrap_guide = wrap_guide_x >= content_origin
3142 && wrap_guide_x <= hitbox.bounds.right() - vertical_scrollbar_width;
3143
3144 display_wrap_guide.then_some((wrap_guide_x, active))
3145 })
3146 .collect()
3147 }
3148
3149 fn calculate_indent_guide_bounds(
3150 row_range: Range<MultiBufferRow>,
3151 line_height: Pixels,
3152 snapshot: &DisplaySnapshot,
3153 ) -> (f64, gpui::Pixels, Range<DisplayRow>) {
3154 let start_point = Point::new(row_range.start.0, 0);
3155 let end_point = Point::new(row_range.end.0, 0);
3156
3157 let mut row_range = start_point.to_display_point(snapshot).row()
3158 ..end_point.to_display_point(snapshot).row();
3159
3160 let mut prev_line = start_point;
3161 prev_line.row = prev_line.row.saturating_sub(1);
3162 let prev_line = prev_line.to_display_point(snapshot).row();
3163
3164 let mut cons_line = end_point;
3165 cons_line.row += 1;
3166 let cons_line = cons_line.to_display_point(snapshot).row();
3167
3168 let mut offset_y = row_range.start.as_f64() * f64::from(line_height);
3169 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
3170
3171 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
3172 if row_range.end == cons_line {
3173 length += line_height;
3174 }
3175
3176 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
3177 // we want to extend the indent guide to the start of the block.
3178 let mut block_height = 0;
3179 let mut block_offset = 0;
3180 let mut found_excerpt_header = false;
3181 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
3182 if matches!(
3183 block,
3184 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
3185 ) {
3186 found_excerpt_header = true;
3187 break;
3188 }
3189 block_offset += block.height();
3190 block_height += block.height();
3191 }
3192 if !found_excerpt_header {
3193 offset_y -= block_offset as f64 * f64::from(line_height);
3194 length += block_height as f32 * line_height;
3195 row_range = DisplayRow(row_range.start.0.saturating_sub(block_offset))..row_range.end;
3196 }
3197
3198 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
3199 // we want to ensure that the indent guide stops before the excerpt header.
3200 let mut block_height = 0;
3201 let mut found_excerpt_header = false;
3202 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
3203 if matches!(
3204 block,
3205 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
3206 ) {
3207 found_excerpt_header = true;
3208 }
3209 block_height += block.height();
3210 }
3211 if found_excerpt_header {
3212 length -= block_height as f32 * line_height;
3213 } else {
3214 row_range = row_range.start..cons_line;
3215 }
3216
3217 (offset_y, length, row_range)
3218 }
3219
3220 fn layout_bookmarks(
3221 &self,
3222 gutter: &Gutter<'_>,
3223 bookmarks: &HashSet<DisplayRow>,
3224 window: &mut Window,
3225 cx: &mut App,
3226 ) -> Vec<AnyElement> {
3227 if self.split_side == Some(SplitSide::Left) {
3228 return Vec::new();
3229 }
3230
3231 self.editor.update(cx, |editor, cx| {
3232 bookmarks
3233 .iter()
3234 .filter_map(|row| {
3235 gutter.layout_item_skipping_folds(
3236 *row,
3237 |cx, _| editor.render_bookmark(*row, cx).into_any_element(),
3238 window,
3239 cx,
3240 )
3241 })
3242 .collect_vec()
3243 })
3244 }
3245
3246 fn layout_gutter_hover_button(
3247 &self,
3248 gutter: &Gutter,
3249 position: Anchor,
3250 row: DisplayRow,
3251 window: &mut Window,
3252 cx: &mut App,
3253 ) -> Option<AnyElement> {
3254 if self.split_side == Some(SplitSide::Left) {
3255 return None;
3256 }
3257
3258 self.editor.update(cx, |editor, cx| {
3259 gutter.layout_item_skipping_folds(
3260 row,
3261 |cx, window| {
3262 editor
3263 .render_gutter_hover_button(position, row, window, cx)
3264 .into_any_element()
3265 },
3266 window,
3267 cx,
3268 )
3269 })
3270 }
3271
3272 fn layout_breakpoints(
3273 &self,
3274 gutter: &Gutter,
3275 breakpoints: &HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
3276 window: &mut Window,
3277 cx: &mut App,
3278 ) -> Vec<AnyElement> {
3279 if self.split_side == Some(SplitSide::Left) {
3280 return Vec::new();
3281 }
3282
3283 self.editor.update(cx, |editor, cx| {
3284 breakpoints
3285 .iter()
3286 .filter_map(|(row, (text_anchor, bp, state))| {
3287 gutter.layout_item_skipping_folds(
3288 *row,
3289 |cx, _| {
3290 editor
3291 .render_breakpoint(*text_anchor, *row, &bp, *state, cx)
3292 .into_any_element()
3293 },
3294 window,
3295 cx,
3296 )
3297 })
3298 .collect_vec()
3299 })
3300 }
3301
3302 fn should_render_diff_review_button(
3303 &self,
3304 range: Range<DisplayRow>,
3305 row_infos: &[RowInfo],
3306 snapshot: &EditorSnapshot,
3307 cx: &App,
3308 ) -> Option<(DisplayRow, Option<u32>)> {
3309 if !cx.has_flag::<DiffReviewFeatureFlag>() {
3310 return None;
3311 }
3312
3313 let show_diff_review_button = self.editor.read(cx).show_diff_review_button();
3314 if !show_diff_review_button {
3315 return None;
3316 }
3317
3318 let indicator = self.editor.read(cx).gutter_diff_review_indicator.0?;
3319 if !indicator.is_active {
3320 return None;
3321 }
3322
3323 let display_row = indicator
3324 .start
3325 .to_display_point(&snapshot.display_snapshot)
3326 .row();
3327 let row_index = (display_row.0.saturating_sub(range.start.0)) as usize;
3328
3329 let row_info = row_infos.get(row_index);
3330 if row_info.is_some_and(|row_info| row_info.expand_info.is_some()) {
3331 return None;
3332 }
3333
3334 let buffer_id = row_info.and_then(|info| info.buffer_id);
3335 if buffer_id.is_none() {
3336 return None;
3337 }
3338
3339 let editor = self.editor.read(cx);
3340 if buffer_id.is_some_and(|buffer_id| editor.is_buffer_folded(buffer_id, cx)) {
3341 return None;
3342 }
3343
3344 let buffer_row = row_info.and_then(|info| info.buffer_row);
3345 Some((display_row, buffer_row))
3346 }
3347
3348 fn layout_run_indicators(
3349 &self,
3350 gutter: &Gutter,
3351 run_indicators: &HashSet<DisplayRow>,
3352 breakpoints: &HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
3353 window: &mut Window,
3354 cx: &mut App,
3355 ) -> Vec<AnyElement> {
3356 if self.split_side == Some(SplitSide::Left) {
3357 return Vec::new();
3358 }
3359
3360 self.editor.update(cx, |editor, cx| {
3361 let active_task_indicator_row =
3362 // TODO: add edit button on the right side of each row in the context menu
3363 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
3364 deployed_from,
3365 actions,
3366 ..
3367 })) = editor.context_menu.borrow().as_ref()
3368 {
3369 actions
3370 .tasks()
3371 .map(|tasks| tasks.position.to_display_point(gutter.snapshot).row())
3372 .or_else(|| match deployed_from {
3373 Some(CodeActionSource::Indicator(row)) => Some(*row),
3374 _ => None,
3375 })
3376 } else {
3377 None
3378 };
3379
3380 run_indicators
3381 .iter()
3382 .filter_map(|display_row| {
3383 gutter.layout_item(
3384 *display_row,
3385 |cx, _| {
3386 editor
3387 .render_run_indicator(
3388 &self.style,
3389 Some(*display_row) == active_task_indicator_row,
3390 breakpoints.get(&display_row).map(|(anchor, _, _)| *anchor),
3391 *display_row,
3392 cx,
3393 )
3394 .into_any_element()
3395 },
3396 window,
3397 cx,
3398 )
3399 })
3400 .collect_vec()
3401 })
3402 }
3403
3404 fn layout_expand_toggles(
3405 &self,
3406 gutter_hitbox: &Hitbox,
3407 gutter_dimensions: GutterDimensions,
3408 em_width: Pixels,
3409 line_height: Pixels,
3410 scroll_position: gpui::Point<ScrollOffset>,
3411 buffer_rows: &[RowInfo],
3412 window: &mut Window,
3413 cx: &mut App,
3414 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
3415 if self.editor.read(cx).disable_expand_excerpt_buttons {
3416 return vec![];
3417 }
3418
3419 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
3420
3421 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
3422
3423 let max_line_number_length = self
3424 .editor
3425 .read(cx)
3426 .buffer()
3427 .read(cx)
3428 .snapshot(cx)
3429 .widest_line_number()
3430 .ilog10()
3431 + 1;
3432
3433 let git_gutter_width = Self::gutter_strip_width(line_height)
3434 + gutter_dimensions
3435 .git_blame_entries_width
3436 .unwrap_or_default();
3437 let available_width = gutter_dimensions.left_padding - git_gutter_width;
3438
3439 buffer_rows
3440 .iter()
3441 .enumerate()
3442 .map(|(ix, row_info)| {
3443 let ExpandInfo {
3444 direction,
3445 start_anchor,
3446 } = row_info.expand_info?;
3447
3448 let icon_name = match direction {
3449 ExpandExcerptDirection::Up => IconName::ExpandUp,
3450 ExpandExcerptDirection::Down => IconName::ExpandDown,
3451 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
3452 };
3453
3454 let editor = self.editor.clone();
3455 let is_wide = max_line_number_length
3456 >= EditorSettings::get_global(cx).gutter.min_line_number_digits as u32
3457 && row_info
3458 .buffer_row
3459 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
3460 || gutter_dimensions.right_padding == px(0.);
3461
3462 let width = if is_wide {
3463 available_width - px(5.)
3464 } else {
3465 available_width + em_width - px(5.)
3466 };
3467
3468 let toggle = IconButton::new(("expand", ix), icon_name)
3469 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
3470 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
3471 .width(width)
3472 .on_click(move |_, window, cx| {
3473 editor.update(cx, |editor, cx| {
3474 editor.expand_excerpt(start_anchor, direction, window, cx);
3475 });
3476 })
3477 .tooltip(Tooltip::for_action_title(
3478 "Expand Excerpt",
3479 &crate::actions::ExpandExcerpts::default(),
3480 ))
3481 .into_any_element();
3482
3483 let position = point(
3484 git_gutter_width + px(1.),
3485 ix as f32 * line_height
3486 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height))
3487 + px(1.),
3488 );
3489 let origin = gutter_hitbox.origin + position;
3490
3491 Some((toggle, origin))
3492 })
3493 .collect()
3494 }
3495
3496 fn layout_line_numbers(
3497 &self,
3498 gutter: &Gutter<'_>,
3499 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3500 current_selection_head: Option<DisplayRow>,
3501 window: &mut Window,
3502 cx: &mut App,
3503 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
3504 let include_line_numbers = gutter
3505 .snapshot
3506 .show_line_numbers
3507 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
3508 if !include_line_numbers {
3509 return Arc::default();
3510 }
3511
3512 let relative = self.editor.read(cx).relative_line_numbers(cx);
3513
3514 let relative_line_numbers_enabled = relative.enabled();
3515 let relative_rows = if relative_line_numbers_enabled
3516 && let Some(current_selection_head) = current_selection_head
3517 {
3518 gutter.snapshot.calculate_relative_line_numbers(
3519 &gutter.range,
3520 current_selection_head,
3521 relative.wrapped(),
3522 )
3523 } else {
3524 Default::default()
3525 };
3526
3527 let mut line_number = String::new();
3528 let segments = gutter
3529 .row_infos
3530 .iter()
3531 .enumerate()
3532 .flat_map(|(ix, row_info)| {
3533 let display_row = DisplayRow(gutter.range.start.0 + ix as u32);
3534 line_number.clear();
3535 let non_relative_number = if relative.wrapped() {
3536 row_info.buffer_row.or(row_info.wrapped_buffer_row)? + 1
3537 } else {
3538 row_info.buffer_row? + 1
3539 };
3540 let relative_number = relative_rows.get(&display_row);
3541 if !(relative_line_numbers_enabled && relative_number.is_some())
3542 && !gutter.snapshot.number_deleted_lines
3543 && row_info
3544 .diff_status
3545 .is_some_and(|status| status.is_deleted())
3546 {
3547 return None;
3548 }
3549
3550 let number = relative_number.unwrap_or(&non_relative_number);
3551 write!(&mut line_number, "{number}").unwrap();
3552
3553 let color = active_rows
3554 .get(&display_row)
3555 .map(|spec| {
3556 if spec.breakpoint {
3557 cx.theme().colors().debugger_accent
3558 } else {
3559 cx.theme().colors().editor_active_line_number
3560 }
3561 })
3562 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
3563 let shaped_line =
3564 self.shape_line_number(SharedString::from(&line_number), color, window);
3565 let scroll_top =
3566 gutter.scroll_position.y * ScrollPixelOffset::from(gutter.line_height);
3567 let line_origin = gutter.hitbox.origin
3568 + point(
3569 gutter.hitbox.size.width
3570 - shaped_line.width
3571 - gutter.dimensions.right_padding,
3572 ix as f32 * gutter.line_height
3573 - Pixels::from(
3574 scroll_top % ScrollPixelOffset::from(gutter.line_height),
3575 ),
3576 );
3577
3578 #[cfg(not(test))]
3579 let hitbox = Some(window.insert_hitbox(
3580 Bounds::new(line_origin, size(shaped_line.width, gutter.line_height)),
3581 HitboxBehavior::Normal,
3582 ));
3583 #[cfg(test)]
3584 let hitbox = {
3585 let _ = line_origin;
3586 None
3587 };
3588
3589 let segment = LineNumberSegment {
3590 shaped_line,
3591 hitbox,
3592 };
3593
3594 let buffer_row = DisplayPoint::new(display_row, 0)
3595 .to_point(gutter.snapshot)
3596 .row;
3597 let multi_buffer_row = MultiBufferRow(buffer_row);
3598
3599 Some((multi_buffer_row, segment))
3600 });
3601
3602 let mut line_numbers: HashMap<MultiBufferRow, LineNumberLayout> = HashMap::default();
3603 for (buffer_row, segment) in segments {
3604 line_numbers
3605 .entry(buffer_row)
3606 .or_insert_with(|| LineNumberLayout {
3607 segments: Default::default(),
3608 })
3609 .segments
3610 .push(segment);
3611 }
3612 Arc::new(line_numbers)
3613 }
3614
3615 fn layout_crease_toggles(
3616 &self,
3617 rows: Range<DisplayRow>,
3618 row_infos: &[RowInfo],
3619 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3620 snapshot: &EditorSnapshot,
3621 window: &mut Window,
3622 cx: &mut App,
3623 ) -> Vec<Option<AnyElement>> {
3624 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
3625 && snapshot.mode.is_full()
3626 && self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
3627 if include_fold_statuses {
3628 row_infos
3629 .iter()
3630 .enumerate()
3631 .map(|(ix, info)| {
3632 if info.expand_info.is_some() {
3633 return None;
3634 }
3635 let row = info.multibuffer_row?;
3636 let display_row = DisplayRow(rows.start.0 + ix as u32);
3637 let active = active_rows.contains_key(&display_row);
3638
3639 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
3640 })
3641 .collect()
3642 } else {
3643 Vec::new()
3644 }
3645 }
3646
3647 fn layout_crease_trailers(
3648 &self,
3649 buffer_rows: impl IntoIterator<Item = RowInfo>,
3650 snapshot: &EditorSnapshot,
3651 window: &mut Window,
3652 cx: &mut App,
3653 ) -> Vec<Option<AnyElement>> {
3654 buffer_rows
3655 .into_iter()
3656 .map(|row_info| {
3657 if row_info.expand_info.is_some() {
3658 return None;
3659 }
3660 if let Some(row) = row_info.multibuffer_row {
3661 snapshot.render_crease_trailer(row, window, cx)
3662 } else {
3663 None
3664 }
3665 })
3666 .collect()
3667 }
3668
3669 fn bg_segments_per_row(
3670 rows: Range<DisplayRow>,
3671 selections: &[(PlayerColor, Vec<SelectionLayout>)],
3672 highlight_ranges: &[(Range<DisplayPoint>, Hsla)],
3673 base_background: Hsla,
3674 ) -> Vec<Vec<(Range<DisplayPoint>, Hsla)>> {
3675 if rows.start >= rows.end {
3676 return Vec::new();
3677 }
3678 if !base_background.is_opaque() {
3679 // We don't actually know what color is behind this editor.
3680 return Vec::new();
3681 }
3682 let highlight_iter = highlight_ranges.iter().cloned();
3683 let selection_iter = selections.iter().flat_map(|(player_color, layouts)| {
3684 let color = player_color.selection;
3685 layouts.iter().filter_map(move |selection_layout| {
3686 if selection_layout.range.start != selection_layout.range.end {
3687 Some((selection_layout.range.clone(), color))
3688 } else {
3689 None
3690 }
3691 })
3692 });
3693 let mut per_row_map = vec![Vec::new(); rows.len()];
3694 for (range, color) in highlight_iter.chain(selection_iter) {
3695 let covered_rows = if range.end.column() == 0 {
3696 cmp::max(range.start.row(), rows.start)..cmp::min(range.end.row(), rows.end)
3697 } else {
3698 cmp::max(range.start.row(), rows.start)
3699 ..cmp::min(range.end.row().next_row(), rows.end)
3700 };
3701 for row in covered_rows.iter_rows() {
3702 let seg_start = if row == range.start.row() {
3703 range.start
3704 } else {
3705 DisplayPoint::new(row, 0)
3706 };
3707 let seg_end = if row == range.end.row() && range.end.column() != 0 {
3708 range.end
3709 } else {
3710 DisplayPoint::new(row, u32::MAX)
3711 };
3712 let ix = row.minus(rows.start) as usize;
3713 debug_assert!(row >= rows.start && row < rows.end);
3714 debug_assert!(ix < per_row_map.len());
3715 per_row_map[ix].push((seg_start..seg_end, color));
3716 }
3717 }
3718 for row_segments in per_row_map.iter_mut() {
3719 if row_segments.is_empty() {
3720 continue;
3721 }
3722 let segments = mem::take(row_segments);
3723 let merged = Self::merge_overlapping_ranges(segments, base_background);
3724 *row_segments = merged;
3725 }
3726 per_row_map
3727 }
3728
3729 /// Merge overlapping ranges by splitting at all range boundaries and blending colors where
3730 /// multiple ranges overlap. The result contains non-overlapping ranges ordered from left to right.
3731 ///
3732 /// Expects `start.row() == end.row()` for each range.
3733 fn merge_overlapping_ranges(
3734 ranges: Vec<(Range<DisplayPoint>, Hsla)>,
3735 base_background: Hsla,
3736 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
3737 struct Boundary {
3738 pos: DisplayPoint,
3739 is_start: bool,
3740 index: usize,
3741 color: Hsla,
3742 }
3743
3744 let mut boundaries: SmallVec<[Boundary; 16]> = SmallVec::with_capacity(ranges.len() * 2);
3745 for (index, (range, color)) in ranges.iter().enumerate() {
3746 debug_assert!(
3747 range.start.row() == range.end.row(),
3748 "expects single-row ranges"
3749 );
3750 if range.start < range.end {
3751 boundaries.push(Boundary {
3752 pos: range.start,
3753 is_start: true,
3754 index,
3755 color: *color,
3756 });
3757 boundaries.push(Boundary {
3758 pos: range.end,
3759 is_start: false,
3760 index,
3761 color: *color,
3762 });
3763 }
3764 }
3765
3766 if boundaries.is_empty() {
3767 return Vec::new();
3768 }
3769
3770 boundaries
3771 .sort_unstable_by(|a, b| a.pos.cmp(&b.pos).then_with(|| a.is_start.cmp(&b.is_start)));
3772
3773 let mut processed_ranges: Vec<(Range<DisplayPoint>, Hsla)> = Vec::new();
3774 let mut active_ranges: SmallVec<[(usize, Hsla); 8]> = SmallVec::new();
3775
3776 let mut i = 0;
3777 let mut start_pos = boundaries[0].pos;
3778
3779 let boundaries_len = boundaries.len();
3780 while i < boundaries_len {
3781 let current_boundary_pos = boundaries[i].pos;
3782 if start_pos < current_boundary_pos {
3783 if !active_ranges.is_empty() {
3784 let mut color = base_background;
3785 for &(_, c) in &active_ranges {
3786 color = Hsla::blend(color, c);
3787 }
3788 if let Some((last_range, last_color)) = processed_ranges.last_mut() {
3789 if *last_color == color && last_range.end == start_pos {
3790 last_range.end = current_boundary_pos;
3791 } else {
3792 processed_ranges.push((start_pos..current_boundary_pos, color));
3793 }
3794 } else {
3795 processed_ranges.push((start_pos..current_boundary_pos, color));
3796 }
3797 }
3798 }
3799 while i < boundaries_len && boundaries[i].pos == current_boundary_pos {
3800 let active_range = &boundaries[i];
3801 if active_range.is_start {
3802 let idx = active_range.index;
3803 let pos = active_ranges
3804 .binary_search_by_key(&idx, |(i, _)| *i)
3805 .unwrap_or_else(|p| p);
3806 active_ranges.insert(pos, (idx, active_range.color));
3807 } else {
3808 let idx = active_range.index;
3809 if let Ok(pos) = active_ranges.binary_search_by_key(&idx, |(i, _)| *i) {
3810 active_ranges.remove(pos);
3811 }
3812 }
3813 i += 1;
3814 }
3815 start_pos = current_boundary_pos;
3816 }
3817
3818 processed_ranges
3819 }
3820
3821 fn layout_lines(
3822 rows: Range<DisplayRow>,
3823 snapshot: &EditorSnapshot,
3824 style: &EditorStyle,
3825 editor_width: Pixels,
3826 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3827 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
3828 window: &mut Window,
3829 cx: &mut App,
3830 ) -> Vec<LineWithInvisibles> {
3831 if rows.start >= rows.end {
3832 return Vec::new();
3833 }
3834
3835 // Show the placeholder when the editor is empty
3836 if snapshot.is_empty() {
3837 let font_size = style.text.font_size.to_pixels(window.rem_size());
3838 let placeholder_color = cx.theme().colors().text_placeholder;
3839 let placeholder_text = snapshot.placeholder_text();
3840
3841 let placeholder_lines = placeholder_text
3842 .as_ref()
3843 .map_or(Vec::new(), |text| text.split('\n').collect::<Vec<_>>());
3844
3845 let placeholder_line_count = placeholder_lines.len();
3846
3847 placeholder_lines
3848 .into_iter()
3849 .skip(rows.start.0 as usize)
3850 .chain(iter::repeat(""))
3851 .take(cmp::max(rows.len(), placeholder_line_count))
3852 .map(move |line| {
3853 let run = TextRun {
3854 len: line.len(),
3855 font: style.text.font(),
3856 color: placeholder_color,
3857 ..Default::default()
3858 };
3859 let line = window.text_system().shape_line(
3860 line.to_string().into(),
3861 font_size,
3862 &[run],
3863 None,
3864 );
3865 LineWithInvisibles {
3866 width: line.width,
3867 len: line.len,
3868 fragments: smallvec![LineFragment::Text(line)],
3869 invisibles: Vec::new(),
3870 font_size,
3871 }
3872 })
3873 .collect()
3874 } else {
3875 let use_tree_sitter = !snapshot.semantic_tokens_enabled
3876 || snapshot.use_tree_sitter_for_syntax(rows.start, cx);
3877 let language_aware = LanguageAwareStyling {
3878 tree_sitter: use_tree_sitter,
3879 diagnostics: true,
3880 };
3881 let chunks = snapshot.highlighted_chunks(rows.clone(), language_aware, style);
3882 LineWithInvisibles::from_chunks(
3883 chunks,
3884 style,
3885 MAX_LINE_LEN,
3886 rows.len(),
3887 &snapshot.mode,
3888 editor_width,
3889 is_row_soft_wrapped,
3890 bg_segments_per_row,
3891 window,
3892 cx,
3893 )
3894 }
3895 }
3896
3897 fn prepaint_lines(
3898 &self,
3899 start_row: DisplayRow,
3900 line_layouts: &mut [LineWithInvisibles],
3901 line_height: Pixels,
3902 scroll_position: gpui::Point<ScrollOffset>,
3903 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
3904 content_origin: gpui::Point<Pixels>,
3905 window: &mut Window,
3906 cx: &mut App,
3907 ) -> SmallVec<[AnyElement; 1]> {
3908 let mut line_elements = SmallVec::new();
3909 for (ix, line) in line_layouts.iter_mut().enumerate() {
3910 let row = start_row + DisplayRow(ix as u32);
3911 line.prepaint(
3912 line_height,
3913 scroll_position,
3914 scroll_pixel_position,
3915 row,
3916 content_origin,
3917 &mut line_elements,
3918 window,
3919 cx,
3920 );
3921 }
3922 line_elements
3923 }
3924
3925 fn render_block(
3926 &self,
3927 block: &Block,
3928 available_width: AvailableSpace,
3929 block_id: BlockId,
3930 block_row_start: DisplayRow,
3931 snapshot: &EditorSnapshot,
3932 text_x: Pixels,
3933 rows: &Range<DisplayRow>,
3934 line_layouts: &[LineWithInvisibles],
3935 editor_margins: &EditorMargins,
3936 line_height: Pixels,
3937 em_width: Pixels,
3938 text_hitbox: &Hitbox,
3939 editor_width: Pixels,
3940 scroll_width: &mut Pixels,
3941 resized_blocks: &mut HashMap<CustomBlockId, u32>,
3942 row_block_types: &mut HashMap<DisplayRow, bool>,
3943 selections: &[Selection<Point>],
3944 selected_buffer_ids: &Vec<BufferId>,
3945 latest_selection_anchors: &HashMap<BufferId, Anchor>,
3946 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3947 sticky_header_excerpt_id: Option<BufferId>,
3948 indent_guides: &Option<Vec<IndentGuideLayout>>,
3949 block_resize_offset: &mut i32,
3950 window: &mut Window,
3951 cx: &mut App,
3952 ) -> Option<(AnyElement, Size<Pixels>, DisplayRow, Pixels)> {
3953 let mut x_position = None;
3954 let mut element = match block {
3955 Block::Custom(custom) => {
3956 let block_start = custom.start().to_point(&snapshot.buffer_snapshot());
3957 let block_end = custom.end().to_point(&snapshot.buffer_snapshot());
3958 if block.place_near() && snapshot.is_line_folded(MultiBufferRow(block_start.row)) {
3959 return None;
3960 }
3961 let align_to = block_start.to_display_point(snapshot);
3962 let x_and_width = |layout: &LineWithInvisibles| {
3963 Some((
3964 text_x + layout.x_for_index(align_to.column() as usize),
3965 text_x + layout.width,
3966 ))
3967 };
3968 let line_ix = align_to.row().0.checked_sub(rows.start.0);
3969 x_position =
3970 if let Some(layout) = line_ix.and_then(|ix| line_layouts.get(ix as usize)) {
3971 x_and_width(layout)
3972 } else {
3973 x_and_width(&layout_line(
3974 align_to.row(),
3975 snapshot,
3976 &self.style,
3977 editor_width,
3978 is_row_soft_wrapped,
3979 window,
3980 cx,
3981 ))
3982 };
3983
3984 let anchor_x = x_position.unwrap().0;
3985
3986 let selected = selections
3987 .binary_search_by(|selection| {
3988 if selection.end <= block_start {
3989 Ordering::Less
3990 } else if selection.start >= block_end {
3991 Ordering::Greater
3992 } else {
3993 Ordering::Equal
3994 }
3995 })
3996 .is_ok();
3997
3998 div()
3999 .size_full()
4000 .child(
4001 custom.render(&mut BlockContext {
4002 window,
4003 app: cx,
4004 anchor_x,
4005 margins: editor_margins,
4006 line_height,
4007 em_width,
4008 block_id,
4009 height: custom.height.unwrap_or(1),
4010 selected,
4011 max_width: text_hitbox.size.width.max(*scroll_width),
4012 editor_style: &self.style,
4013 indent_guide_padding: indent_guides
4014 .as_ref()
4015 .map(|guides| {
4016 Self::depth_zero_indent_guide_padding_for_row(
4017 guides,
4018 block_row_start,
4019 )
4020 })
4021 .unwrap_or(px(0.0)),
4022 }),
4023 )
4024 .into_any()
4025 }
4026
4027 Block::FoldedBuffer {
4028 first_excerpt,
4029 height,
4030 ..
4031 } => {
4032 let mut result = v_flex().id(block_id).w_full().pr(editor_margins.right);
4033
4034 if self.should_show_buffer_headers() {
4035 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id());
4036 let jump_data = header_jump_data(
4037 snapshot,
4038 block_row_start,
4039 *height,
4040 first_excerpt,
4041 latest_selection_anchors,
4042 );
4043 result = result.child(self.render_buffer_header(
4044 first_excerpt,
4045 true,
4046 selected,
4047 false,
4048 jump_data,
4049 window,
4050 cx,
4051 ));
4052 } else {
4053 result =
4054 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
4055 }
4056
4057 result.into_any_element()
4058 }
4059
4060 Block::ExcerptBoundary { .. } => {
4061 let color = cx.theme().colors().clone();
4062 let mut result = v_flex().id(block_id).w_full();
4063
4064 result = result.child(
4065 h_flex().relative().child(
4066 div()
4067 .top(line_height / 2.)
4068 .absolute()
4069 .w_full()
4070 .h_px()
4071 .bg(color.border_variant),
4072 ),
4073 );
4074
4075 result.into_any()
4076 }
4077
4078 Block::BufferHeader { excerpt, height } => {
4079 let mut result = v_flex().id(block_id).w_full();
4080
4081 if self.should_show_buffer_headers() {
4082 let jump_data = header_jump_data(
4083 snapshot,
4084 block_row_start,
4085 *height,
4086 excerpt,
4087 latest_selection_anchors,
4088 );
4089
4090 if sticky_header_excerpt_id != Some(excerpt.buffer_id()) {
4091 let selected = selected_buffer_ids.contains(&excerpt.buffer_id());
4092
4093 result = result.child(div().pr(editor_margins.right).child(
4094 self.render_buffer_header(
4095 excerpt, false, selected, false, jump_data, window, cx,
4096 ),
4097 ));
4098 } else {
4099 result =
4100 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
4101 }
4102 } else {
4103 result =
4104 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
4105 }
4106
4107 result.into_any()
4108 }
4109
4110 Block::Spacer { height, .. } => {
4111 let indent_guide_padding = indent_guides
4112 .as_ref()
4113 .map(|guides| {
4114 Self::depth_zero_indent_guide_padding_for_row(guides, block_row_start)
4115 })
4116 .unwrap_or(px(0.0));
4117 Self::render_spacer_block(
4118 block_id,
4119 *height,
4120 line_height,
4121 indent_guide_padding,
4122 window,
4123 cx,
4124 )
4125 }
4126 };
4127
4128 // Discover the element's content height, then round up to the nearest multiple of line height.
4129 let preliminary_size = element.layout_as_root(
4130 size(available_width, AvailableSpace::MinContent),
4131 window,
4132 cx,
4133 );
4134 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
4135 let final_size = if preliminary_size.height == quantized_height {
4136 preliminary_size
4137 } else {
4138 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
4139 };
4140 let mut element_height_in_lines = ((final_size.height / line_height).ceil() as u32).max(1);
4141
4142 let effective_row_start = block_row_start.0 as i32 + *block_resize_offset;
4143 debug_assert!(effective_row_start >= 0);
4144 let mut row = DisplayRow(effective_row_start.max(0) as u32);
4145
4146 let mut x_offset = px(0.);
4147 let mut is_block = true;
4148
4149 if let BlockId::Custom(custom_block_id) = block_id
4150 && block.has_height()
4151 {
4152 if block.place_near()
4153 && let Some((x_target, line_width)) = x_position
4154 {
4155 let margin = em_width * 2;
4156 if line_width + final_size.width + margin
4157 < editor_width + editor_margins.gutter.full_width()
4158 && !row_block_types.contains_key(&(row - 1))
4159 && element_height_in_lines == 1
4160 {
4161 // Render inline at end of line (for diagnostic blocks that fit)
4162 x_offset = line_width + margin;
4163 row = row - 1;
4164 is_block = false;
4165 element_height_in_lines = 0;
4166 row_block_types.insert(row, is_block);
4167 } else {
4168 let max_offset =
4169 editor_width + editor_margins.gutter.full_width() - final_size.width;
4170 let min_offset = (x_target + em_width - final_size.width)
4171 .max(editor_margins.gutter.full_width());
4172 x_offset = x_target.min(max_offset).max(min_offset);
4173 }
4174 };
4175 if element_height_in_lines != block.height() {
4176 *block_resize_offset += element_height_in_lines as i32 - block.height() as i32;
4177 resized_blocks.insert(custom_block_id, element_height_in_lines);
4178 }
4179 }
4180 for i in 0..element_height_in_lines {
4181 row_block_types.insert(row + i, is_block);
4182 }
4183
4184 Some((element, final_size, row, x_offset))
4185 }
4186
4187 /// The spacer pattern period must be an even factor of the line height, so
4188 /// that two consecutive spacer blocks can render contiguously without an
4189 /// obvious break in the pattern.
4190 ///
4191 /// Two consecutive spacers can appear when the other side has a diff hunk
4192 /// and a custom block next to each other (e.g. merge conflict buttons).
4193 fn spacer_pattern_period(line_height: f32, target_height: f32) -> f32 {
4194 let k_approx = line_height / (2.0 * target_height);
4195 let k_floor = (k_approx.floor() as u32).max(1);
4196 let k_ceil = (k_approx.ceil() as u32).max(1);
4197
4198 let size_floor = line_height / (2 * k_floor) as f32;
4199 let size_ceil = line_height / (2 * k_ceil) as f32;
4200
4201 if (size_floor - target_height).abs() <= (size_ceil - target_height).abs() {
4202 size_floor
4203 } else {
4204 size_ceil
4205 }
4206 }
4207
4208 pub fn render_spacer_block(
4209 block_id: BlockId,
4210 block_height: u32,
4211 line_height: Pixels,
4212 indent_guide_padding: Pixels,
4213 window: &mut Window,
4214 cx: &App,
4215 ) -> AnyElement {
4216 let target_size = 16.0;
4217 let scale = window.scale_factor();
4218 let pattern_size =
4219 Self::spacer_pattern_period(f32::from(line_height) * scale, target_size * scale);
4220 let color = cx.theme().colors().panel_background;
4221 let background = pattern_slash(color, 2.0, pattern_size - 2.0);
4222
4223 div()
4224 .id(block_id)
4225 .cursor(CursorStyle::Arrow)
4226 .w_full()
4227 .h((block_height as f32) * line_height)
4228 .flex()
4229 .flex_row()
4230 .child(div().flex_shrink_0().w(indent_guide_padding).h_full())
4231 .child(
4232 div()
4233 .flex_1()
4234 .h_full()
4235 .relative()
4236 .overflow_x_hidden()
4237 .child(
4238 div()
4239 .absolute()
4240 .top_0()
4241 .bottom_0()
4242 .right_0()
4243 .left(-indent_guide_padding)
4244 .bg(background),
4245 ),
4246 )
4247 .into_any()
4248 }
4249
4250 fn render_buffer_header(
4251 &self,
4252 for_excerpt: &ExcerptBoundaryInfo,
4253 is_folded: bool,
4254 is_selected: bool,
4255 is_sticky: bool,
4256 jump_data: JumpData,
4257 window: &mut Window,
4258 cx: &mut App,
4259 ) -> impl IntoElement {
4260 render_buffer_header(
4261 &self.editor,
4262 for_excerpt,
4263 is_folded,
4264 is_selected,
4265 is_sticky,
4266 jump_data,
4267 window,
4268 cx,
4269 )
4270 }
4271
4272 fn render_blocks(
4273 &self,
4274 rows: Range<DisplayRow>,
4275 snapshot: &EditorSnapshot,
4276 hitbox: &Hitbox,
4277 text_hitbox: &Hitbox,
4278 editor_width: Pixels,
4279 scroll_width: &mut Pixels,
4280 editor_margins: &EditorMargins,
4281 em_width: Pixels,
4282 text_x: Pixels,
4283 line_height: Pixels,
4284 line_layouts: &mut [LineWithInvisibles],
4285 selections: &[Selection<Point>],
4286 selected_buffer_ids: &Vec<BufferId>,
4287 latest_selection_anchors: &HashMap<BufferId, Anchor>,
4288 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4289 sticky_header_excerpt_id: Option<BufferId>,
4290 indent_guides: &Option<Vec<IndentGuideLayout>>,
4291 window: &mut Window,
4292 cx: &mut App,
4293 ) -> RenderBlocksOutput {
4294 let (fixed_blocks, non_fixed_blocks) = snapshot
4295 .blocks_in_range(rows.clone())
4296 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
4297
4298 let mut focused_block = self
4299 .editor
4300 .update(cx, |editor, _| editor.take_focused_block());
4301 let mut fixed_block_max_width = Pixels::ZERO;
4302 let mut blocks = Vec::new();
4303 let mut spacer_blocks = Vec::new();
4304 let mut resized_blocks = HashMap::default();
4305 let mut row_block_types = HashMap::default();
4306 let mut block_resize_offset: i32 = 0;
4307
4308 for (row, block) in fixed_blocks {
4309 let block_id = block.id();
4310
4311 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4312 focused_block = None;
4313 }
4314
4315 if let Some((element, element_size, row, x_offset)) = self.render_block(
4316 block,
4317 AvailableSpace::MinContent,
4318 block_id,
4319 row,
4320 snapshot,
4321 text_x,
4322 &rows,
4323 line_layouts,
4324 editor_margins,
4325 line_height,
4326 em_width,
4327 text_hitbox,
4328 editor_width,
4329 scroll_width,
4330 &mut resized_blocks,
4331 &mut row_block_types,
4332 selections,
4333 selected_buffer_ids,
4334 latest_selection_anchors,
4335 is_row_soft_wrapped,
4336 sticky_header_excerpt_id,
4337 indent_guides,
4338 &mut block_resize_offset,
4339 window,
4340 cx,
4341 ) {
4342 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
4343 blocks.push(BlockLayout {
4344 id: block_id,
4345 x_offset,
4346 row: Some(row),
4347 element,
4348 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
4349 style: BlockStyle::Fixed,
4350 overlaps_gutter: true,
4351 is_buffer_header: block.is_buffer_header(),
4352 });
4353 }
4354 }
4355
4356 for (row, block) in non_fixed_blocks {
4357 let style = block.style();
4358 let width = match (style, block.place_near()) {
4359 (_, true) => AvailableSpace::MinContent,
4360 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
4361 (BlockStyle::Flex, _) => hitbox
4362 .size
4363 .width
4364 .max(fixed_block_max_width)
4365 .max(
4366 editor_margins.gutter.width + *scroll_width + editor_margins.extended_right,
4367 )
4368 .into(),
4369 (BlockStyle::Spacer, _) => hitbox
4370 .size
4371 .width
4372 .max(fixed_block_max_width)
4373 .max(*scroll_width + editor_margins.extended_right)
4374 .into(),
4375 (BlockStyle::Fixed, _) => unreachable!(),
4376 };
4377 let block_id = block.id();
4378
4379 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4380 focused_block = None;
4381 }
4382
4383 if let Some((element, element_size, row, x_offset)) = self.render_block(
4384 block,
4385 width,
4386 block_id,
4387 row,
4388 snapshot,
4389 text_x,
4390 &rows,
4391 line_layouts,
4392 editor_margins,
4393 line_height,
4394 em_width,
4395 text_hitbox,
4396 editor_width,
4397 scroll_width,
4398 &mut resized_blocks,
4399 &mut row_block_types,
4400 selections,
4401 selected_buffer_ids,
4402 latest_selection_anchors,
4403 is_row_soft_wrapped,
4404 sticky_header_excerpt_id,
4405 indent_guides,
4406 &mut block_resize_offset,
4407 window,
4408 cx,
4409 ) {
4410 let layout = BlockLayout {
4411 id: block_id,
4412 x_offset,
4413 row: Some(row),
4414 element,
4415 available_space: size(width, element_size.height.into()),
4416 style,
4417 overlaps_gutter: !block.place_near() && style != BlockStyle::Spacer,
4418 is_buffer_header: block.is_buffer_header(),
4419 };
4420 if style == BlockStyle::Spacer {
4421 spacer_blocks.push(layout);
4422 } else {
4423 blocks.push(layout);
4424 }
4425 }
4426 }
4427
4428 if let Some(focused_block) = focused_block
4429 && let Some(focus_handle) = focused_block.focus_handle.upgrade()
4430 && focus_handle.is_focused(window)
4431 && let Some(block) = snapshot.block_for_id(focused_block.id)
4432 {
4433 let style = block.style();
4434 let width = match style {
4435 BlockStyle::Fixed => AvailableSpace::MinContent,
4436 BlockStyle::Flex => {
4437 AvailableSpace::Definite(hitbox.size.width.max(fixed_block_max_width).max(
4438 editor_margins.gutter.width + *scroll_width + editor_margins.extended_right,
4439 ))
4440 }
4441 BlockStyle::Spacer => AvailableSpace::Definite(
4442 hitbox
4443 .size
4444 .width
4445 .max(fixed_block_max_width)
4446 .max(*scroll_width + editor_margins.extended_right),
4447 ),
4448 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
4449 };
4450
4451 if let Some((element, element_size, _, x_offset)) = self.render_block(
4452 &block,
4453 width,
4454 focused_block.id,
4455 rows.end,
4456 snapshot,
4457 text_x,
4458 &rows,
4459 line_layouts,
4460 editor_margins,
4461 line_height,
4462 em_width,
4463 text_hitbox,
4464 editor_width,
4465 scroll_width,
4466 &mut resized_blocks,
4467 &mut row_block_types,
4468 selections,
4469 selected_buffer_ids,
4470 latest_selection_anchors,
4471 is_row_soft_wrapped,
4472 sticky_header_excerpt_id,
4473 indent_guides,
4474 &mut block_resize_offset,
4475 window,
4476 cx,
4477 ) {
4478 blocks.push(BlockLayout {
4479 id: block.id(),
4480 x_offset,
4481 row: None,
4482 element,
4483 available_space: size(width, element_size.height.into()),
4484 style,
4485 overlaps_gutter: true,
4486 is_buffer_header: block.is_buffer_header(),
4487 });
4488 }
4489 }
4490
4491 if resized_blocks.is_empty() {
4492 *scroll_width =
4493 (*scroll_width).max(fixed_block_max_width - editor_margins.gutter.width);
4494 }
4495
4496 RenderBlocksOutput {
4497 non_spacer_blocks: blocks,
4498 spacer_blocks,
4499 row_block_types,
4500 resized_blocks: (!resized_blocks.is_empty()).then_some(resized_blocks),
4501 }
4502 }
4503
4504 fn layout_blocks(
4505 &self,
4506 blocks: &mut Vec<BlockLayout>,
4507 hitbox: &Hitbox,
4508 gutter_hitbox: &Hitbox,
4509 line_height: Pixels,
4510 scroll_position: gpui::Point<ScrollOffset>,
4511 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4512 editor_margins: &EditorMargins,
4513 window: &mut Window,
4514 cx: &mut App,
4515 ) {
4516 for block in blocks {
4517 let mut origin = if let Some(row) = block.row {
4518 hitbox.origin
4519 + point(
4520 block.x_offset,
4521 Pixels::from(
4522 (row.as_f64() - scroll_position.y)
4523 * ScrollPixelOffset::from(line_height),
4524 ),
4525 )
4526 } else {
4527 // Position the block outside the visible area
4528 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
4529 };
4530
4531 if block.style == BlockStyle::Spacer {
4532 origin += point(
4533 gutter_hitbox.size.width + editor_margins.gutter.margin,
4534 Pixels::ZERO,
4535 );
4536 }
4537
4538 if !matches!(block.style, BlockStyle::Sticky) {
4539 origin += point(Pixels::from(-scroll_pixel_position.x), Pixels::ZERO);
4540 }
4541
4542 let focus_handle =
4543 block
4544 .element
4545 .prepaint_as_root(origin, block.available_space, window, cx);
4546
4547 if let Some(focus_handle) = focus_handle {
4548 self.editor.update(cx, |editor, _cx| {
4549 editor.set_focused_block(FocusedBlock {
4550 id: block.id,
4551 focus_handle: focus_handle.downgrade(),
4552 });
4553 });
4554 }
4555 }
4556 }
4557
4558 fn layout_sticky_buffer_header(
4559 &self,
4560 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
4561 scroll_position: gpui::Point<ScrollOffset>,
4562 line_height: Pixels,
4563 right_margin: Pixels,
4564 snapshot: &EditorSnapshot,
4565 hitbox: &Hitbox,
4566 selected_buffer_ids: &Vec<BufferId>,
4567 blocks: &[BlockLayout],
4568 latest_selection_anchors: &HashMap<BufferId, Anchor>,
4569 window: &mut Window,
4570 cx: &mut App,
4571 ) -> AnyElement {
4572 let jump_data = header_jump_data(
4573 snapshot,
4574 DisplayRow(scroll_position.y as u32),
4575 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
4576 excerpt,
4577 latest_selection_anchors,
4578 );
4579
4580 let editor_bg_color = cx.theme().colors().editor_background;
4581
4582 let selected = selected_buffer_ids.contains(&excerpt.buffer_id());
4583
4584 let available_width = hitbox.bounds.size.width - right_margin;
4585
4586 let mut header = v_flex()
4587 .w_full()
4588 .relative()
4589 .child(
4590 div()
4591 .w(available_width)
4592 .h(FILE_HEADER_HEIGHT as f32 * line_height)
4593 .bg(linear_gradient(
4594 0.,
4595 linear_color_stop(editor_bg_color.opacity(0.), 0.),
4596 linear_color_stop(editor_bg_color, 0.6),
4597 ))
4598 .absolute()
4599 .top_0(),
4600 )
4601 .child(
4602 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
4603 .into_any_element(),
4604 )
4605 .into_any_element();
4606
4607 let mut origin = hitbox.origin;
4608 // Move floating header up to avoid colliding with the next buffer header.
4609 for block in blocks.iter() {
4610 if !block.is_buffer_header {
4611 continue;
4612 }
4613
4614 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position.y as u32) else {
4615 continue;
4616 };
4617
4618 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
4619 let offset = scroll_position.y - max_row as f64;
4620
4621 if offset > 0.0 {
4622 origin.y -= Pixels::from(offset * ScrollPixelOffset::from(line_height));
4623 }
4624 break;
4625 }
4626
4627 let size = size(
4628 AvailableSpace::Definite(available_width),
4629 AvailableSpace::MinContent,
4630 );
4631
4632 header.prepaint_as_root(origin, size, window, cx);
4633
4634 header
4635 }
4636
4637 fn layout_sticky_headers(
4638 &self,
4639 snapshot: &EditorSnapshot,
4640 editor_width: Pixels,
4641 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4642 line_height: Pixels,
4643 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4644 content_origin: gpui::Point<Pixels>,
4645 gutter_dimensions: &GutterDimensions,
4646 gutter_hitbox: &Hitbox,
4647 text_hitbox: &Hitbox,
4648 relative_line_numbers: RelativeLineNumbers,
4649 relative_to: Option<DisplayRow>,
4650 window: &mut Window,
4651 cx: &mut App,
4652 ) -> Option<StickyHeaders> {
4653 let show_line_numbers = snapshot
4654 .show_line_numbers
4655 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
4656
4657 let rows = Self::sticky_headers(self.editor.read(cx), snapshot);
4658
4659 let mut lines = Vec::<StickyHeaderLine>::new();
4660
4661 for StickyHeader {
4662 sticky_row,
4663 start_point,
4664 offset,
4665 } in rows.into_iter().rev()
4666 {
4667 let line = layout_line(
4668 sticky_row,
4669 snapshot,
4670 &self.style,
4671 editor_width,
4672 is_row_soft_wrapped,
4673 window,
4674 cx,
4675 );
4676
4677 let line_number = show_line_numbers.then(|| {
4678 let start_display_row = start_point.to_display_point(snapshot).row();
4679 let relative_number = relative_to
4680 .filter(|_| relative_line_numbers != RelativeLineNumbers::Disabled)
4681 .map(|base| {
4682 snapshot.relative_line_delta(
4683 base,
4684 start_display_row,
4685 relative_line_numbers == RelativeLineNumbers::Wrapped,
4686 )
4687 });
4688 let number = relative_number
4689 .filter(|&delta| delta != 0)
4690 .map(|delta| delta.unsigned_abs() as u32)
4691 .unwrap_or(start_point.row + 1);
4692 let color = cx.theme().colors().editor_line_number;
4693 self.shape_line_number(SharedString::from(number.to_string()), color, window)
4694 });
4695
4696 lines.push(StickyHeaderLine::new(
4697 sticky_row,
4698 line_height * offset as f32,
4699 line,
4700 line_number,
4701 line_height,
4702 scroll_pixel_position,
4703 content_origin,
4704 gutter_hitbox,
4705 text_hitbox,
4706 window,
4707 cx,
4708 ));
4709 }
4710
4711 lines.reverse();
4712 if lines.is_empty() {
4713 return None;
4714 }
4715
4716 Some(StickyHeaders {
4717 lines,
4718 gutter_background: cx.theme().colors().editor_gutter_background,
4719 content_background: self.style.background,
4720 gutter_right_padding: gutter_dimensions.right_padding,
4721 })
4722 }
4723
4724 pub(crate) fn sticky_headers(editor: &Editor, snapshot: &EditorSnapshot) -> Vec<StickyHeader> {
4725 let scroll_top = snapshot.scroll_position().y;
4726
4727 let mut end_rows = Vec::<DisplayRow>::new();
4728 let mut rows = Vec::<StickyHeader>::new();
4729
4730 for item in editor.sticky_headers.iter().flatten() {
4731 let start_point = item
4732 .source_range_for_text
4733 .start
4734 .to_point(snapshot.buffer_snapshot());
4735 let end_point = item.range.end.to_point(snapshot.buffer_snapshot());
4736
4737 let sticky_row = snapshot
4738 .display_snapshot
4739 .point_to_display_point(start_point, Bias::Left)
4740 .row();
4741 if rows
4742 .last()
4743 .is_some_and(|last| last.sticky_row == sticky_row)
4744 {
4745 continue;
4746 }
4747
4748 let end_row = snapshot
4749 .display_snapshot
4750 .point_to_display_point(end_point, Bias::Left)
4751 .row();
4752 let max_sticky_row = end_row.previous_row();
4753 if max_sticky_row <= sticky_row {
4754 continue;
4755 }
4756
4757 while end_rows
4758 .last()
4759 .is_some_and(|&last_end| last_end <= sticky_row)
4760 {
4761 end_rows.pop();
4762 }
4763 let depth = end_rows.len();
4764 let adjusted_scroll_top = scroll_top + depth as f64;
4765
4766 if sticky_row.as_f64() >= adjusted_scroll_top || end_row.as_f64() <= adjusted_scroll_top
4767 {
4768 continue;
4769 }
4770
4771 let max_scroll_offset = max_sticky_row.as_f64() - scroll_top;
4772 let offset = (depth as f64).min(max_scroll_offset);
4773
4774 end_rows.push(end_row);
4775 rows.push(StickyHeader {
4776 sticky_row,
4777 start_point,
4778 offset,
4779 });
4780 }
4781
4782 rows
4783 }
4784
4785 fn layout_cursor_popovers(
4786 &self,
4787 line_height: Pixels,
4788 text_hitbox: &Hitbox,
4789 content_origin: gpui::Point<Pixels>,
4790 right_margin: Pixels,
4791 start_row: DisplayRow,
4792 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4793 line_layouts: &[LineWithInvisibles],
4794 cursor: DisplayPoint,
4795 cursor_point: Point,
4796 style: &EditorStyle,
4797 window: &mut Window,
4798 cx: &mut App,
4799 ) -> Option<ContextMenuLayout> {
4800 let mut min_menu_height = Pixels::ZERO;
4801 let mut max_menu_height = Pixels::ZERO;
4802 let mut height_above_menu = Pixels::ZERO;
4803 let height_below_menu = Pixels::ZERO;
4804 let mut edit_prediction_popover_visible = false;
4805 let mut context_menu_visible = false;
4806 let context_menu_placement;
4807
4808 {
4809 let editor = self.editor.read(cx);
4810 if editor.edit_prediction_visible_in_cursor_popover(editor.has_active_edit_prediction())
4811 {
4812 height_above_menu +=
4813 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
4814 edit_prediction_popover_visible = true;
4815 }
4816
4817 if editor.context_menu_visible()
4818 && let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin()
4819 {
4820 let (min_height_in_lines, max_height_in_lines) = editor
4821 .context_menu_options
4822 .as_ref()
4823 .map_or((3, 12), |options| {
4824 (options.min_entries_visible, options.max_entries_visible)
4825 });
4826
4827 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4828 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4829 context_menu_visible = true;
4830 }
4831 context_menu_placement = editor
4832 .context_menu_options
4833 .as_ref()
4834 .and_then(|options| options.placement.clone());
4835 }
4836
4837 let visible = edit_prediction_popover_visible || context_menu_visible;
4838 if !visible {
4839 return None;
4840 }
4841
4842 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
4843 let target_position = content_origin
4844 + gpui::Point {
4845 x: cmp::max(
4846 px(0.),
4847 Pixels::from(
4848 ScrollPixelOffset::from(
4849 cursor_row_layout.x_for_index(cursor.column() as usize),
4850 ) - scroll_pixel_position.x,
4851 ),
4852 ),
4853 y: cmp::max(
4854 px(0.),
4855 Pixels::from(
4856 cursor.row().next_row().as_f64() * ScrollPixelOffset::from(line_height)
4857 - scroll_pixel_position.y,
4858 ),
4859 ),
4860 };
4861
4862 let viewport_bounds =
4863 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4864 right: -right_margin - MENU_GAP,
4865 ..Default::default()
4866 });
4867
4868 let min_height = height_above_menu + min_menu_height + height_below_menu;
4869 let max_height = height_above_menu + max_menu_height + height_below_menu;
4870 let (laid_out_popovers, y_flipped) = self.layout_popovers_above_or_below_line(
4871 target_position,
4872 line_height,
4873 min_height,
4874 max_height,
4875 context_menu_placement,
4876 text_hitbox,
4877 viewport_bounds,
4878 window,
4879 cx,
4880 |height, max_width_for_stable_x, y_flipped, window, cx| {
4881 // First layout the menu to get its size - others can be at least this wide.
4882 let context_menu = if context_menu_visible {
4883 let menu_height = if y_flipped {
4884 height - height_below_menu
4885 } else {
4886 height - height_above_menu
4887 };
4888 let mut element = self
4889 .render_context_menu(line_height, menu_height, window, cx)
4890 .expect("Visible context menu should always render.");
4891 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4892 Some((CursorPopoverType::CodeContextMenu, element, size))
4893 } else {
4894 None
4895 };
4896 let min_width = context_menu
4897 .as_ref()
4898 .map_or(px(0.), |(_, _, size)| size.width);
4899 let max_width = max_width_for_stable_x.max(
4900 context_menu
4901 .as_ref()
4902 .map_or(px(0.), |(_, _, size)| size.width),
4903 );
4904
4905 let edit_prediction = if edit_prediction_popover_visible {
4906 self.editor.update(cx, move |editor, cx| {
4907 let mut element = editor.render_edit_prediction_cursor_popover(
4908 min_width,
4909 max_width,
4910 cursor_point,
4911 style,
4912 window,
4913 cx,
4914 )?;
4915 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4916 Some((CursorPopoverType::EditPrediction, element, size))
4917 })
4918 } else {
4919 None
4920 };
4921 vec![edit_prediction, context_menu]
4922 .into_iter()
4923 .flatten()
4924 .collect::<Vec<_>>()
4925 },
4926 )?;
4927
4928 let (menu_ix, (_, menu_bounds)) = laid_out_popovers
4929 .iter()
4930 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))?;
4931 let last_ix = laid_out_popovers.len() - 1;
4932 let menu_is_last = menu_ix == last_ix;
4933 let first_popover_bounds = laid_out_popovers[0].1;
4934 let last_popover_bounds = laid_out_popovers[last_ix].1;
4935
4936 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
4937 // right, and otherwise it goes below or to the right.
4938 let mut target_bounds = Bounds::from_corners(
4939 first_popover_bounds.origin,
4940 last_popover_bounds.bottom_right(),
4941 );
4942 target_bounds.size.width = menu_bounds.size.width;
4943
4944 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
4945 // based on this is preferred for layout stability.
4946 let mut max_target_bounds = target_bounds;
4947 max_target_bounds.size.height = max_height;
4948 if y_flipped {
4949 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
4950 }
4951
4952 // Add spacing around `target_bounds` and `max_target_bounds`.
4953 let mut extend_amount = Edges::all(MENU_GAP);
4954 if y_flipped {
4955 extend_amount.bottom = line_height;
4956 } else {
4957 extend_amount.top = line_height;
4958 }
4959 let target_bounds = target_bounds.extend(extend_amount);
4960 let max_target_bounds = max_target_bounds.extend(extend_amount);
4961
4962 let must_place_above_or_below =
4963 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
4964 laid_out_popovers[menu_ix + 1..]
4965 .iter()
4966 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
4967 } else {
4968 false
4969 };
4970
4971 let aside_bounds = self.layout_context_menu_aside(
4972 y_flipped,
4973 *menu_bounds,
4974 target_bounds,
4975 max_target_bounds,
4976 max_menu_height,
4977 must_place_above_or_below,
4978 text_hitbox,
4979 viewport_bounds,
4980 window,
4981 cx,
4982 );
4983
4984 if let Some(menu_bounds) = laid_out_popovers.iter().find_map(|(popover_type, bounds)| {
4985 if matches!(popover_type, CursorPopoverType::CodeContextMenu) {
4986 Some(*bounds)
4987 } else {
4988 None
4989 }
4990 }) {
4991 let bounds = if let Some(aside_bounds) = aside_bounds {
4992 menu_bounds.union(&aside_bounds)
4993 } else {
4994 menu_bounds
4995 };
4996 return Some(ContextMenuLayout { y_flipped, bounds });
4997 }
4998
4999 None
5000 }
5001
5002 fn layout_gutter_menu(
5003 &self,
5004 line_height: Pixels,
5005 text_hitbox: &Hitbox,
5006 content_origin: gpui::Point<Pixels>,
5007 right_margin: Pixels,
5008 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5009 gutter_overshoot: Pixels,
5010 window: &mut Window,
5011 cx: &mut App,
5012 ) {
5013 let editor = self.editor.read(cx);
5014 if !editor.context_menu_visible() {
5015 return;
5016 }
5017 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
5018 editor.context_menu_origin()
5019 else {
5020 return;
5021 };
5022 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
5023 // indicator than just a plain first column of the text field.
5024 let target_position = content_origin
5025 + gpui::Point {
5026 x: -gutter_overshoot,
5027 y: Pixels::from(
5028 gutter_row.next_row().as_f64() * ScrollPixelOffset::from(line_height)
5029 - scroll_pixel_position.y,
5030 ),
5031 };
5032
5033 let (min_height_in_lines, max_height_in_lines) = editor
5034 .context_menu_options
5035 .as_ref()
5036 .map_or((3, 12), |options| {
5037 (options.min_entries_visible, options.max_entries_visible)
5038 });
5039
5040 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
5041 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
5042 let viewport_bounds =
5043 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
5044 right: -right_margin - MENU_GAP,
5045 ..Default::default()
5046 });
5047 self.layout_popovers_above_or_below_line(
5048 target_position,
5049 line_height,
5050 min_height,
5051 max_height,
5052 editor
5053 .context_menu_options
5054 .as_ref()
5055 .and_then(|options| options.placement.clone()),
5056 text_hitbox,
5057 viewport_bounds,
5058 window,
5059 cx,
5060 move |height, _max_width_for_stable_x, _, window, cx| {
5061 let mut element = self
5062 .render_context_menu(line_height, height, window, cx)
5063 .expect("Visible context menu should always render.");
5064 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
5065 vec![(CursorPopoverType::CodeContextMenu, element, size)]
5066 },
5067 );
5068 }
5069
5070 fn layout_popovers_above_or_below_line(
5071 &self,
5072 target_position: gpui::Point<Pixels>,
5073 line_height: Pixels,
5074 min_height: Pixels,
5075 max_height: Pixels,
5076 placement: Option<ContextMenuPlacement>,
5077 text_hitbox: &Hitbox,
5078 viewport_bounds: Bounds<Pixels>,
5079 window: &mut Window,
5080 cx: &mut App,
5081 make_sized_popovers: impl FnOnce(
5082 Pixels,
5083 Pixels,
5084 bool,
5085 &mut Window,
5086 &mut App,
5087 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
5088 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
5089 let text_style = TextStyleRefinement {
5090 line_height: Some(DefiniteLength::Fraction(
5091 BufferLineHeight::Comfortable.value(),
5092 )),
5093 ..Default::default()
5094 };
5095 window.with_text_style(Some(text_style), |window| {
5096 // If the max height won't fit below and there is more space above, put it above the line.
5097 let bottom_y_when_flipped = target_position.y - line_height;
5098 let available_above = bottom_y_when_flipped - text_hitbox.top();
5099 let available_below = text_hitbox.bottom() - target_position.y;
5100 let y_overflows_below = max_height > available_below;
5101 let mut y_flipped = match placement {
5102 Some(ContextMenuPlacement::Above) => true,
5103 Some(ContextMenuPlacement::Below) => false,
5104 None => y_overflows_below && available_above > available_below,
5105 };
5106 let mut height = cmp::min(
5107 max_height,
5108 if y_flipped {
5109 available_above
5110 } else {
5111 available_below
5112 },
5113 );
5114
5115 // If the min height doesn't fit within text bounds, instead fit within the window.
5116 if height < min_height {
5117 let available_above = bottom_y_when_flipped;
5118 let available_below = viewport_bounds.bottom() - target_position.y;
5119 let (y_flipped_override, height_override) = match placement {
5120 Some(ContextMenuPlacement::Above) => {
5121 (true, cmp::min(available_above, min_height))
5122 }
5123 Some(ContextMenuPlacement::Below) => {
5124 (false, cmp::min(available_below, min_height))
5125 }
5126 None => {
5127 if available_below > min_height {
5128 (false, min_height)
5129 } else if available_above > min_height {
5130 (true, min_height)
5131 } else if available_above > available_below {
5132 (true, available_above)
5133 } else {
5134 (false, available_below)
5135 }
5136 }
5137 };
5138 y_flipped = y_flipped_override;
5139 height = height_override;
5140 }
5141
5142 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
5143
5144 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
5145 // for very narrow windows.
5146 let popovers =
5147 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
5148 if popovers.is_empty() {
5149 return None;
5150 }
5151
5152 let max_width = popovers
5153 .iter()
5154 .map(|(_, _, size)| size.width)
5155 .max()
5156 .unwrap_or_default();
5157
5158 let mut current_position = gpui::Point {
5159 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
5160 // overflow. Include space for the scrollbar.
5161 x: target_position
5162 .x
5163 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
5164 y: if y_flipped {
5165 bottom_y_when_flipped
5166 } else {
5167 target_position.y
5168 },
5169 };
5170
5171 let mut laid_out_popovers = popovers
5172 .into_iter()
5173 .map(|(popover_type, element, size)| {
5174 if y_flipped {
5175 current_position.y -= size.height;
5176 }
5177 let position = current_position;
5178 window.defer_draw(element, current_position, 1, None);
5179 if !y_flipped {
5180 current_position.y += size.height + MENU_GAP;
5181 } else {
5182 current_position.y -= MENU_GAP;
5183 }
5184 (popover_type, Bounds::new(position, size))
5185 })
5186 .collect::<Vec<_>>();
5187
5188 if y_flipped {
5189 laid_out_popovers.reverse();
5190 }
5191
5192 Some((laid_out_popovers, y_flipped))
5193 })
5194 }
5195
5196 fn layout_context_menu_aside(
5197 &self,
5198 y_flipped: bool,
5199 menu_bounds: Bounds<Pixels>,
5200 target_bounds: Bounds<Pixels>,
5201 max_target_bounds: Bounds<Pixels>,
5202 max_height: Pixels,
5203 must_place_above_or_below: bool,
5204 text_hitbox: &Hitbox,
5205 viewport_bounds: Bounds<Pixels>,
5206 window: &mut Window,
5207 cx: &mut App,
5208 ) -> Option<Bounds<Pixels>> {
5209 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
5210 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
5211 && !must_place_above_or_below
5212 {
5213 let max_width = cmp::min(
5214 available_within_viewport.right - px(1.),
5215 MENU_ASIDE_MAX_WIDTH,
5216 );
5217 let mut aside = self.render_context_menu_aside(
5218 size(max_width, max_height - POPOVER_Y_PADDING),
5219 window,
5220 cx,
5221 )?;
5222 let size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5223 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
5224 Some((aside, right_position, size))
5225 } else {
5226 let max_size = size(
5227 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
5228 // won't be needed here.
5229 cmp::min(
5230 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
5231 viewport_bounds.right(),
5232 ),
5233 cmp::min(
5234 max_height,
5235 cmp::max(
5236 available_within_viewport.top,
5237 available_within_viewport.bottom,
5238 ),
5239 ) - POPOVER_Y_PADDING,
5240 );
5241 let mut aside = self.render_context_menu_aside(max_size, window, cx)?;
5242 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5243
5244 let top_position = point(
5245 menu_bounds.origin.x,
5246 target_bounds.top() - actual_size.height,
5247 );
5248 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
5249
5250 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
5251 // Prefer to fit on the same side of the line as the menu, then on the other side of
5252 // the line.
5253 if !y_flipped && wanted.height < available.bottom {
5254 Some(bottom_position)
5255 } else if !y_flipped && wanted.height < available.top {
5256 Some(top_position)
5257 } else if y_flipped && wanted.height < available.top {
5258 Some(top_position)
5259 } else if y_flipped && wanted.height < available.bottom {
5260 Some(bottom_position)
5261 } else {
5262 None
5263 }
5264 };
5265
5266 // Prefer choosing a direction using max sizes rather than actual size for stability.
5267 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
5268 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
5269 let aside_position = fit_within(available_within_text, wanted)
5270 // Fallback: fit max size in window.
5271 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
5272 // Fallback: fit actual size in window.
5273 .or_else(|| fit_within(available_within_viewport, actual_size));
5274
5275 aside_position.map(|position| (aside, position, actual_size))
5276 };
5277
5278 // Skip drawing if it doesn't fit anywhere.
5279 if let Some((aside, position, size)) = positioned_aside {
5280 let aside_bounds = Bounds::new(position, size);
5281 window.defer_draw(aside, position, 2, None);
5282 return Some(aside_bounds);
5283 }
5284
5285 None
5286 }
5287
5288 fn render_context_menu(
5289 &self,
5290 line_height: Pixels,
5291 height: Pixels,
5292 window: &mut Window,
5293 cx: &mut App,
5294 ) -> Option<AnyElement> {
5295 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
5296 self.editor.update(cx, |editor, cx| {
5297 editor.render_context_menu(max_height_in_lines, window, cx)
5298 })
5299 }
5300
5301 fn render_context_menu_aside(
5302 &self,
5303 max_size: Size<Pixels>,
5304 window: &mut Window,
5305 cx: &mut App,
5306 ) -> Option<AnyElement> {
5307 if max_size.width < px(100.) || max_size.height < px(12.) {
5308 None
5309 } else {
5310 self.editor.update(cx, |editor, cx| {
5311 editor.render_context_menu_aside(max_size, window, cx)
5312 })
5313 }
5314 }
5315
5316 fn layout_mouse_context_menu(
5317 &self,
5318 editor_snapshot: &EditorSnapshot,
5319 visible_range: Range<DisplayRow>,
5320 content_origin: gpui::Point<Pixels>,
5321 window: &mut Window,
5322 cx: &mut App,
5323 ) -> Option<AnyElement> {
5324 let position = self.editor.update(cx, |editor, cx| {
5325 let visible_start_point = editor.display_to_pixel_point(
5326 DisplayPoint::new(visible_range.start, 0),
5327 editor_snapshot,
5328 window,
5329 cx,
5330 )?;
5331 let visible_end_point = editor.display_to_pixel_point(
5332 DisplayPoint::new(visible_range.end, 0),
5333 editor_snapshot,
5334 window,
5335 cx,
5336 )?;
5337
5338 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5339 let (source_display_point, position) = match mouse_context_menu.position {
5340 MenuPosition::PinnedToScreen(point) => (None, point),
5341 MenuPosition::PinnedToEditor { source, offset } => {
5342 let source_display_point = source.to_display_point(editor_snapshot);
5343 let source_point =
5344 editor.to_pixel_point(source, editor_snapshot, window, cx)?;
5345 let position = content_origin + source_point + offset;
5346 (Some(source_display_point), position)
5347 }
5348 };
5349
5350 let source_included = source_display_point.is_none_or(|source_display_point| {
5351 visible_range
5352 .to_inclusive()
5353 .contains(&source_display_point.row())
5354 });
5355 let position_included =
5356 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
5357 if !source_included && !position_included {
5358 None
5359 } else {
5360 Some(position)
5361 }
5362 })?;
5363
5364 let text_style = TextStyleRefinement {
5365 line_height: Some(DefiniteLength::Fraction(
5366 BufferLineHeight::Comfortable.value(),
5367 )),
5368 ..Default::default()
5369 };
5370 window.with_text_style(Some(text_style), |window| {
5371 let mut element = self.editor.read_with(cx, |editor, _| {
5372 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5373 let context_menu = mouse_context_menu.context_menu.clone();
5374
5375 Some(
5376 deferred(
5377 anchored()
5378 .position(position)
5379 .child(context_menu)
5380 .anchor(gpui::Anchor::TopLeft)
5381 .snap_to_window_with_margin(px(8.)),
5382 )
5383 .with_priority(1)
5384 .into_any(),
5385 )
5386 })?;
5387
5388 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
5389 Some(element)
5390 })
5391 }
5392
5393 fn layout_hover_popovers(
5394 &self,
5395 snapshot: &EditorSnapshot,
5396 hitbox: &Hitbox,
5397 visible_display_row_range: Range<DisplayRow>,
5398 content_origin: gpui::Point<Pixels>,
5399 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5400 line_layouts: &[LineWithInvisibles],
5401 line_height: Pixels,
5402 em_width: Pixels,
5403 context_menu_layout: Option<ContextMenuLayout>,
5404 window: &mut Window,
5405 cx: &mut App,
5406 ) {
5407 struct MeasuredHoverPopover {
5408 element: AnyElement,
5409 size: Size<Pixels>,
5410 horizontal_offset: Pixels,
5411 }
5412
5413 let max_size = size(
5414 (120. * em_width) // Default size
5415 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5416 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5417 (16. * line_height) // Default size
5418 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5419 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5420 );
5421
5422 // Don't show hover popovers when context menu is open to avoid overlap
5423 let has_context_menu = self.editor.read(cx).mouse_context_menu.is_some();
5424 if has_context_menu {
5425 return;
5426 }
5427
5428 let hover_popovers = self.editor.update(cx, |editor, cx| {
5429 editor.hover_state.render(
5430 snapshot,
5431 visible_display_row_range.clone(),
5432 max_size,
5433 &editor.text_layout_details(window, cx),
5434 window,
5435 cx,
5436 )
5437 });
5438 let Some((popover_position, hover_popovers)) = hover_popovers else {
5439 return;
5440 };
5441
5442 // This is safe because we check on layout whether the required row is available
5443 let hovered_row_layout = &line_layouts[popover_position
5444 .row()
5445 .minus(visible_display_row_range.start)
5446 as usize];
5447
5448 // Compute Hovered Point
5449 let x = hovered_row_layout.x_for_index(popover_position.column() as usize)
5450 - Pixels::from(scroll_pixel_position.x);
5451 let y = Pixels::from(
5452 popover_position.row().as_f64() * ScrollPixelOffset::from(line_height)
5453 - scroll_pixel_position.y,
5454 );
5455 let hovered_point = content_origin + point(x, y);
5456
5457 let mut overall_height = Pixels::ZERO;
5458 let mut measured_hover_popovers = Vec::new();
5459 for (position, mut hover_popover) in hover_popovers.into_iter().with_position() {
5460 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
5461 let horizontal_offset =
5462 (hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
5463 .min(Pixels::ZERO);
5464 match position {
5465 itertools::Position::Middle | itertools::Position::Last => {
5466 overall_height += HOVER_POPOVER_GAP
5467 }
5468 _ => {}
5469 }
5470 overall_height += size.height;
5471 measured_hover_popovers.push(MeasuredHoverPopover {
5472 element: hover_popover,
5473 size,
5474 horizontal_offset,
5475 });
5476 }
5477
5478 fn draw_occluder(
5479 width: Pixels,
5480 origin: gpui::Point<Pixels>,
5481 window: &mut Window,
5482 cx: &mut App,
5483 ) {
5484 let mut occlusion = div()
5485 .size_full()
5486 .occlude()
5487 .on_mouse_move(|_, _, cx| cx.stop_propagation())
5488 .into_any_element();
5489 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
5490 window.defer_draw(occlusion, origin, 2, None);
5491 }
5492
5493 fn place_popovers_above(
5494 hovered_point: gpui::Point<Pixels>,
5495 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5496 window: &mut Window,
5497 cx: &mut App,
5498 ) {
5499 let mut current_y = hovered_point.y;
5500 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5501 let size = popover.size;
5502 let popover_origin = point(
5503 hovered_point.x + popover.horizontal_offset,
5504 current_y - size.height,
5505 );
5506
5507 window.defer_draw(popover.element, popover_origin, 2, None);
5508 if position != itertools::Position::Last {
5509 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
5510 draw_occluder(size.width, origin, window, cx);
5511 }
5512
5513 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5514 }
5515 }
5516
5517 fn place_popovers_below(
5518 hovered_point: gpui::Point<Pixels>,
5519 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5520 line_height: Pixels,
5521 window: &mut Window,
5522 cx: &mut App,
5523 ) {
5524 let mut current_y = hovered_point.y + line_height;
5525 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5526 let size = popover.size;
5527 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5528
5529 window.defer_draw(popover.element, popover_origin, 2, None);
5530 if position != itertools::Position::Last {
5531 let origin = point(popover_origin.x, popover_origin.y + size.height);
5532 draw_occluder(size.width, origin, window, cx);
5533 }
5534
5535 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5536 }
5537 }
5538
5539 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5540 context_menu_layout
5541 .as_ref()
5542 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5543 };
5544
5545 let can_place_above = {
5546 let mut bounds_above = Vec::new();
5547 let mut current_y = hovered_point.y;
5548 for popover in &measured_hover_popovers {
5549 let size = popover.size;
5550 let popover_origin = point(
5551 hovered_point.x + popover.horizontal_offset,
5552 current_y - size.height,
5553 );
5554 bounds_above.push(Bounds::new(popover_origin, size));
5555 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5556 }
5557 bounds_above
5558 .iter()
5559 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5560 };
5561
5562 let can_place_below = || {
5563 let mut bounds_below = Vec::new();
5564 let mut current_y = hovered_point.y + line_height;
5565 for popover in &measured_hover_popovers {
5566 let size = popover.size;
5567 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5568 bounds_below.push(Bounds::new(popover_origin, size));
5569 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5570 }
5571 bounds_below
5572 .iter()
5573 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5574 };
5575
5576 if can_place_above {
5577 // try placing above hovered point
5578 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5579 } else if can_place_below() {
5580 // try placing below hovered point
5581 place_popovers_below(
5582 hovered_point,
5583 measured_hover_popovers,
5584 line_height,
5585 window,
5586 cx,
5587 );
5588 } else {
5589 // try to place popovers around the context menu
5590 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5591 let total_width = measured_hover_popovers
5592 .iter()
5593 .map(|p| p.size.width)
5594 .max()
5595 .unwrap_or(Pixels::ZERO);
5596 let y_for_horizontal_positioning = if menu.y_flipped {
5597 menu.bounds.bottom() - overall_height
5598 } else {
5599 menu.bounds.top()
5600 };
5601 let possible_origins = vec![
5602 // left of context menu
5603 point(
5604 menu.bounds.left() - total_width - HOVER_POPOVER_GAP,
5605 y_for_horizontal_positioning,
5606 ),
5607 // right of context menu
5608 point(
5609 menu.bounds.right() + HOVER_POPOVER_GAP,
5610 y_for_horizontal_positioning,
5611 ),
5612 // top of context menu
5613 point(
5614 menu.bounds.left(),
5615 menu.bounds.top() - overall_height - HOVER_POPOVER_GAP,
5616 ),
5617 // bottom of context menu
5618 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5619 ];
5620 possible_origins.into_iter().find(|&origin| {
5621 Bounds::new(origin, size(total_width, overall_height))
5622 .is_contained_within(hitbox)
5623 })
5624 });
5625 if let Some(origin) = origin_surrounding_menu {
5626 let mut current_y = origin.y;
5627 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5628 let size = popover.size;
5629 let popover_origin = point(origin.x, current_y);
5630
5631 window.defer_draw(popover.element, popover_origin, 2, None);
5632 if position != itertools::Position::Last {
5633 let origin = point(popover_origin.x, popover_origin.y + size.height);
5634 draw_occluder(size.width, origin, window, cx);
5635 }
5636
5637 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5638 }
5639 } else {
5640 // fallback to existing above/below cursor logic
5641 // this might overlap menu or overflow in rare case
5642 if can_place_above {
5643 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5644 } else {
5645 place_popovers_below(
5646 hovered_point,
5647 measured_hover_popovers,
5648 line_height,
5649 window,
5650 cx,
5651 );
5652 }
5653 }
5654 }
5655 }
5656
5657 fn layout_word_diff_highlights(
5658 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5659 row_infos: &[RowInfo],
5660 start_row: DisplayRow,
5661 snapshot: &EditorSnapshot,
5662 highlighted_ranges: &mut Vec<(Range<DisplayPoint>, Hsla)>,
5663 cx: &mut App,
5664 ) {
5665 let colors = cx.theme().colors();
5666
5667 let word_highlights = display_hunks
5668 .into_iter()
5669 .filter_map(|(hunk, _)| match hunk {
5670 DisplayDiffHunk::Unfolded {
5671 word_diffs, status, ..
5672 } => Some((word_diffs, status)),
5673 _ => None,
5674 })
5675 .filter(|(_, status)| status.is_modified())
5676 .flat_map(|(word_diffs, _)| word_diffs)
5677 .flat_map(|word_diff| {
5678 let display_ranges = snapshot
5679 .display_snapshot
5680 .isomorphic_display_point_ranges_for_buffer_range(
5681 word_diff.start..word_diff.end,
5682 );
5683
5684 display_ranges.into_iter().filter_map(|range| {
5685 let start_row_offset = range.start.row().0.saturating_sub(start_row.0) as usize;
5686
5687 let diff_status = row_infos
5688 .get(start_row_offset)
5689 .and_then(|row_info| row_info.diff_status)?;
5690
5691 let background_color = match diff_status.kind {
5692 DiffHunkStatusKind::Added => colors.version_control_word_added,
5693 DiffHunkStatusKind::Deleted => colors.version_control_word_deleted,
5694 DiffHunkStatusKind::Modified => {
5695 debug_panic!("modified diff status for row info");
5696 return None;
5697 }
5698 };
5699
5700 Some((range, background_color))
5701 })
5702 });
5703
5704 highlighted_ranges.extend(word_highlights);
5705 }
5706
5707 fn layout_diff_hunk_controls(
5708 &self,
5709 row_range: Range<DisplayRow>,
5710 row_infos: &[RowInfo],
5711 text_hitbox: &Hitbox,
5712 newest_cursor_row: Option<DisplayRow>,
5713 line_height: Pixels,
5714 right_margin: Pixels,
5715 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5716 sticky_header_height: Pixels,
5717 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5718 highlighted_rows: &BTreeMap<DisplayRow, LineHighlight>,
5719 editor: Entity<Editor>,
5720 window: &mut Window,
5721 cx: &mut App,
5722 ) -> (Vec<AnyElement>, Vec<(DisplayRow, Bounds<Pixels>)>) {
5723 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
5724 let hovered_diff_hunk_row = editor.read(cx).hovered_diff_hunk_row;
5725 let sticky_top = text_hitbox.bounds.top() + sticky_header_height;
5726
5727 let mut controls = vec![];
5728 let mut control_bounds = vec![];
5729
5730 let active_rows = [hovered_diff_hunk_row, newest_cursor_row];
5731
5732 for (hunk, _) in display_hunks {
5733 if let DisplayDiffHunk::Unfolded {
5734 display_row_range,
5735 multi_buffer_range,
5736 status,
5737 is_created_file,
5738 ..
5739 } = &hunk
5740 {
5741 if display_row_range.start >= row_range.end {
5742 // hunk is fully below the viewport
5743 continue;
5744 }
5745 if display_row_range.end <= row_range.start {
5746 // hunk is fully above the viewport
5747 continue;
5748 }
5749 let row_ix = display_row_range.start.0.saturating_sub(row_range.start.0);
5750 if row_infos
5751 .get(row_ix as usize)
5752 .and_then(|row_info| row_info.diff_status)
5753 .is_none()
5754 {
5755 continue;
5756 }
5757 if highlighted_rows
5758 .get(&display_row_range.start)
5759 .and_then(|highlight| highlight.type_id)
5760 .is_some_and(|type_id| {
5761 [
5762 TypeId::of::<ConflictsOuter>(),
5763 TypeId::of::<ConflictsOursMarker>(),
5764 TypeId::of::<ConflictsOurs>(),
5765 TypeId::of::<ConflictsTheirs>(),
5766 TypeId::of::<ConflictsTheirsMarker>(),
5767 ]
5768 .contains(&type_id)
5769 })
5770 {
5771 continue;
5772 }
5773
5774 if active_rows
5775 .iter()
5776 .any(|row| row.is_some_and(|row| display_row_range.contains(&row)))
5777 {
5778 let hunk_start_y: Pixels = (display_row_range.start.as_f64()
5779 * ScrollPixelOffset::from(line_height)
5780 + ScrollPixelOffset::from(text_hitbox.bounds.top())
5781 - scroll_pixel_position.y)
5782 .into();
5783
5784 let y: Pixels = if hunk_start_y >= sticky_top {
5785 hunk_start_y
5786 } else {
5787 let hunk_end_y: Pixels = hunk_start_y
5788 + (display_row_range.len() as f64
5789 * ScrollPixelOffset::from(line_height))
5790 .into();
5791 let max_y = hunk_end_y - line_height;
5792 sticky_top.min(max_y)
5793 };
5794
5795 let mut element = render_diff_hunk_controls(
5796 display_row_range.start.0,
5797 status,
5798 multi_buffer_range.clone(),
5799 *is_created_file,
5800 line_height,
5801 &editor,
5802 window,
5803 cx,
5804 );
5805 let size =
5806 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
5807
5808 let x = text_hitbox.bounds.right() - right_margin - px(10.) - size.width;
5809
5810 if x < text_hitbox.bounds.left() {
5811 continue;
5812 }
5813
5814 let bounds = Bounds::new(gpui::Point::new(x, y), size);
5815 control_bounds.push((display_row_range.start, bounds));
5816
5817 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
5818 element.prepaint(window, cx)
5819 });
5820 controls.push(element);
5821 }
5822 }
5823 }
5824
5825 (controls, control_bounds)
5826 }
5827
5828 fn layout_signature_help(
5829 &self,
5830 hitbox: &Hitbox,
5831 content_origin: gpui::Point<Pixels>,
5832 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5833 newest_selection_head: Option<DisplayPoint>,
5834 start_row: DisplayRow,
5835 line_layouts: &[LineWithInvisibles],
5836 line_height: Pixels,
5837 em_width: Pixels,
5838 context_menu_layout: Option<ContextMenuLayout>,
5839 window: &mut Window,
5840 cx: &mut App,
5841 ) {
5842 if !self.editor.focus_handle(cx).is_focused(window) {
5843 return;
5844 }
5845 let Some(newest_selection_head) = newest_selection_head else {
5846 return;
5847 };
5848
5849 let max_size = size(
5850 (120. * em_width) // Default size
5851 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5852 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5853 (16. * line_height) // Default size
5854 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5855 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5856 );
5857
5858 let maybe_element = self.editor.update(cx, |editor, cx| {
5859 if let Some(popover) = editor.signature_help_state.popover_mut() {
5860 let element = popover.render(max_size, window, cx);
5861 Some(element)
5862 } else {
5863 None
5864 }
5865 });
5866 let Some(mut element) = maybe_element else {
5867 return;
5868 };
5869
5870 let selection_row = newest_selection_head.row();
5871 let Some(cursor_row_layout) = (selection_row >= start_row)
5872 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
5873 .flatten()
5874 else {
5875 return;
5876 };
5877
5878 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
5879 - Pixels::from(scroll_pixel_position.x);
5880 let target_y = Pixels::from(
5881 selection_row.as_f64() * ScrollPixelOffset::from(line_height) - scroll_pixel_position.y,
5882 );
5883 let target_point = content_origin + point(target_x, target_y);
5884
5885 let actual_size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
5886
5887 let (popover_bounds_above, popover_bounds_below) = {
5888 let horizontal_offset = (hitbox.top_right().x
5889 - POPOVER_RIGHT_OFFSET
5890 - (target_point.x + actual_size.width))
5891 .min(Pixels::ZERO);
5892 let initial_x = target_point.x + horizontal_offset;
5893 (
5894 Bounds::new(
5895 point(initial_x, target_point.y - actual_size.height),
5896 actual_size,
5897 ),
5898 Bounds::new(
5899 point(initial_x, target_point.y + line_height + HOVER_POPOVER_GAP),
5900 actual_size,
5901 ),
5902 )
5903 };
5904
5905 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5906 context_menu_layout
5907 .as_ref()
5908 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5909 };
5910
5911 let final_origin = if popover_bounds_above.is_contained_within(hitbox)
5912 && !intersects_menu(popover_bounds_above)
5913 {
5914 // try placing above cursor
5915 popover_bounds_above.origin
5916 } else if popover_bounds_below.is_contained_within(hitbox)
5917 && !intersects_menu(popover_bounds_below)
5918 {
5919 // try placing below cursor
5920 popover_bounds_below.origin
5921 } else {
5922 // try surrounding context menu if exists
5923 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5924 let y_for_horizontal_positioning = if menu.y_flipped {
5925 menu.bounds.bottom() - actual_size.height
5926 } else {
5927 menu.bounds.top()
5928 };
5929 let possible_origins = vec![
5930 // left of context menu
5931 point(
5932 menu.bounds.left() - actual_size.width - HOVER_POPOVER_GAP,
5933 y_for_horizontal_positioning,
5934 ),
5935 // right of context menu
5936 point(
5937 menu.bounds.right() + HOVER_POPOVER_GAP,
5938 y_for_horizontal_positioning,
5939 ),
5940 // top of context menu
5941 point(
5942 menu.bounds.left(),
5943 menu.bounds.top() - actual_size.height - HOVER_POPOVER_GAP,
5944 ),
5945 // bottom of context menu
5946 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5947 ];
5948 possible_origins
5949 .into_iter()
5950 .find(|&origin| Bounds::new(origin, actual_size).is_contained_within(hitbox))
5951 });
5952 origin_surrounding_menu.unwrap_or_else(|| {
5953 // fallback to existing above/below cursor logic
5954 // this might overlap menu or overflow in rare case
5955 if popover_bounds_above.is_contained_within(hitbox) {
5956 popover_bounds_above.origin
5957 } else {
5958 popover_bounds_below.origin
5959 }
5960 })
5961 };
5962
5963 window.defer_draw(element, final_origin, 2, None);
5964 }
5965
5966 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5967 window.paint_layer(layout.hitbox.bounds, |window| {
5968 let scroll_top = layout.position_map.snapshot.scroll_position().y;
5969 let gutter_bg = cx.theme().colors().editor_gutter_background;
5970 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
5971 window.paint_quad(fill(
5972 layout.position_map.text_hitbox.bounds,
5973 self.style.background,
5974 ));
5975
5976 if matches!(
5977 layout.mode,
5978 EditorMode::Full { .. } | EditorMode::Minimap { .. }
5979 ) {
5980 let show_active_line_background = match layout.mode {
5981 EditorMode::Full {
5982 show_active_line_background,
5983 ..
5984 } => show_active_line_background,
5985 EditorMode::Minimap { .. } => true,
5986 _ => false,
5987 };
5988 let mut active_rows = layout.active_rows.iter().peekable();
5989 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
5990 let mut end_row = start_row.0;
5991 while active_rows
5992 .peek()
5993 .is_some_and(|(active_row, has_selection)| {
5994 active_row.0 == end_row + 1
5995 && has_selection.selection == contains_non_empty_selection.selection
5996 })
5997 {
5998 active_rows.next().unwrap();
5999 end_row += 1;
6000 }
6001
6002 if show_active_line_background && !contains_non_empty_selection.selection {
6003 let highlight_h_range =
6004 match layout.position_map.snapshot.current_line_highlight {
6005 CurrentLineHighlight::Gutter => Some(Range {
6006 start: layout.hitbox.left(),
6007 end: layout.gutter_hitbox.right(),
6008 }),
6009 CurrentLineHighlight::Line => Some(Range {
6010 start: layout.position_map.text_hitbox.bounds.left(),
6011 end: layout.position_map.text_hitbox.bounds.right(),
6012 }),
6013 CurrentLineHighlight::All => Some(Range {
6014 start: layout.hitbox.left(),
6015 end: layout.hitbox.right(),
6016 }),
6017 CurrentLineHighlight::None => None,
6018 };
6019 if let Some(range) = highlight_h_range {
6020 let active_line_bg = cx.theme().colors().editor_active_line_background;
6021 let bounds = Bounds {
6022 origin: point(
6023 range.start,
6024 layout.hitbox.origin.y
6025 + Pixels::from(
6026 (start_row.as_f64() - scroll_top)
6027 * ScrollPixelOffset::from(
6028 layout.position_map.line_height,
6029 ),
6030 ),
6031 ),
6032 size: size(
6033 range.end - range.start,
6034 layout.position_map.line_height
6035 * (end_row - start_row.0 + 1) as f32,
6036 ),
6037 };
6038 window.paint_quad(fill(bounds, active_line_bg));
6039 }
6040 }
6041 }
6042
6043 let mut paint_highlight = |highlight_row_start: DisplayRow,
6044 highlight_row_end: DisplayRow,
6045 highlight: crate::LineHighlight,
6046 edges| {
6047 let mut origin_x = layout.hitbox.left();
6048 let mut width = layout.hitbox.size.width;
6049 if !highlight.include_gutter {
6050 origin_x += layout.gutter_hitbox.size.width;
6051 width -= layout.gutter_hitbox.size.width;
6052 }
6053
6054 let origin = point(
6055 origin_x,
6056 layout.hitbox.origin.y
6057 + Pixels::from(
6058 (highlight_row_start.as_f64() - scroll_top)
6059 * ScrollPixelOffset::from(layout.position_map.line_height),
6060 ),
6061 );
6062 let size = size(
6063 width,
6064 layout.position_map.line_height
6065 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
6066 );
6067 let mut quad = fill(Bounds { origin, size }, highlight.background);
6068 if let Some(border_color) = highlight.border {
6069 quad.border_color = border_color;
6070 quad.border_widths = edges
6071 }
6072 window.paint_quad(quad);
6073 };
6074
6075 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
6076 None;
6077 for (&new_row, &new_background) in &layout.highlighted_rows {
6078 match &mut current_paint {
6079 &mut Some((current_background, ref mut current_range, mut edges)) => {
6080 let new_range_started = current_background != new_background
6081 || current_range.end.next_row() != new_row;
6082 if new_range_started {
6083 if current_range.end.next_row() == new_row {
6084 edges.bottom = px(0.);
6085 };
6086 paint_highlight(
6087 current_range.start,
6088 current_range.end,
6089 current_background,
6090 edges,
6091 );
6092 let edges = Edges {
6093 top: if current_range.end.next_row() != new_row {
6094 px(1.)
6095 } else {
6096 px(0.)
6097 },
6098 bottom: px(1.),
6099 ..Default::default()
6100 };
6101 current_paint = Some((new_background, new_row..new_row, edges));
6102 continue;
6103 } else {
6104 current_range.end = current_range.end.next_row();
6105 }
6106 }
6107 None => {
6108 let edges = Edges {
6109 top: px(1.),
6110 bottom: px(1.),
6111 ..Default::default()
6112 };
6113 current_paint = Some((new_background, new_row..new_row, edges))
6114 }
6115 };
6116 }
6117 if let Some((color, range, edges)) = current_paint {
6118 paint_highlight(range.start, range.end, color, edges);
6119 }
6120
6121 for (guide_x, active) in layout.wrap_guides.iter() {
6122 let color = if *active {
6123 cx.theme().colors().editor_active_wrap_guide
6124 } else {
6125 cx.theme().colors().editor_wrap_guide
6126 };
6127 window.paint_quad(fill(
6128 Bounds {
6129 origin: point(*guide_x, layout.position_map.text_hitbox.origin.y),
6130 size: size(px(1.), layout.position_map.text_hitbox.size.height),
6131 },
6132 color,
6133 ));
6134 }
6135 }
6136 })
6137 }
6138
6139 fn paint_indent_guides(
6140 &mut self,
6141 layout: &mut EditorLayout,
6142 window: &mut Window,
6143 cx: &mut App,
6144 ) {
6145 let Some(indent_guides) = &layout.indent_guides else {
6146 return;
6147 };
6148
6149 let faded_color = |color: Hsla, alpha: f32| {
6150 let mut faded = color;
6151 faded.a = alpha;
6152 faded
6153 };
6154
6155 for indent_guide in indent_guides {
6156 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
6157 let settings = &indent_guide.settings;
6158
6159 // TODO fixed for now, expose them through themes later
6160 const INDENT_AWARE_ALPHA: f32 = 0.2;
6161 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
6162 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
6163 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
6164
6165 let line_color = match (settings.coloring, indent_guide.active) {
6166 (IndentGuideColoring::Disabled, _) => None,
6167 (IndentGuideColoring::Fixed, false) => {
6168 Some(cx.theme().colors().editor_indent_guide)
6169 }
6170 (IndentGuideColoring::Fixed, true) => {
6171 Some(cx.theme().colors().editor_indent_guide_active)
6172 }
6173 (IndentGuideColoring::IndentAware, false) => {
6174 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
6175 }
6176 (IndentGuideColoring::IndentAware, true) => {
6177 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
6178 }
6179 };
6180
6181 let background_color = match (settings.background_coloring, indent_guide.active) {
6182 (IndentGuideBackgroundColoring::Disabled, _) => None,
6183 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
6184 indent_accent_colors,
6185 INDENT_AWARE_BACKGROUND_ALPHA,
6186 )),
6187 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
6188 indent_accent_colors,
6189 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
6190 )),
6191 };
6192
6193 let mut line_indicator_width = 0.;
6194 if let Some(requested_line_width) = settings.visible_line_width(indent_guide.active) {
6195 if let Some(color) = line_color {
6196 window.paint_quad(fill(
6197 Bounds {
6198 origin: indent_guide.origin,
6199 size: size(px(requested_line_width as f32), indent_guide.length),
6200 },
6201 color,
6202 ));
6203 line_indicator_width = requested_line_width as f32;
6204 }
6205 }
6206
6207 if let Some(color) = background_color {
6208 let width = indent_guide.single_indent_width - px(line_indicator_width);
6209 window.paint_quad(fill(
6210 Bounds {
6211 origin: point(
6212 indent_guide.origin.x + px(line_indicator_width),
6213 indent_guide.origin.y,
6214 ),
6215 size: size(width, indent_guide.length),
6216 },
6217 color,
6218 ));
6219 }
6220 }
6221 }
6222
6223 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6224 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
6225
6226 let line_height = layout.position_map.line_height;
6227 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
6228
6229 for line_layout in layout.line_numbers.values() {
6230 for LineNumberSegment {
6231 shaped_line,
6232 hitbox,
6233 } in &line_layout.segments
6234 {
6235 let Some(hitbox) = hitbox else {
6236 continue;
6237 };
6238
6239 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
6240 let color = cx.theme().colors().editor_hover_line_number;
6241
6242 let line = self.shape_line_number(shaped_line.text.clone(), color, window);
6243 line.paint(
6244 hitbox.origin,
6245 line_height,
6246 TextAlign::Left,
6247 None,
6248 window,
6249 cx,
6250 )
6251 .log_err()
6252 } else {
6253 shaped_line
6254 .paint(
6255 hitbox.origin,
6256 line_height,
6257 TextAlign::Left,
6258 None,
6259 window,
6260 cx,
6261 )
6262 .log_err()
6263 }) else {
6264 continue;
6265 };
6266
6267 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
6268 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
6269 if is_singleton {
6270 window.set_cursor_style(CursorStyle::IBeam, hitbox);
6271 } else {
6272 window.set_cursor_style(CursorStyle::PointingHand, hitbox);
6273 }
6274 }
6275 }
6276 }
6277
6278 fn paint_gutter_diff_hunks(
6279 layout: &mut EditorLayout,
6280 split_side: Option<SplitSide>,
6281 window: &mut Window,
6282 cx: &mut App,
6283 ) {
6284 if layout.display_hunks.is_empty() {
6285 return;
6286 }
6287
6288 let line_height = layout.position_map.line_height;
6289 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6290 for (hunk, hitbox) in &layout.display_hunks {
6291 let hunk_to_paint = match hunk {
6292 DisplayDiffHunk::Folded { .. } => {
6293 let hunk_bounds = Self::diff_hunk_bounds(
6294 &layout.position_map.snapshot,
6295 line_height,
6296 layout.gutter_hitbox.bounds,
6297 hunk,
6298 );
6299 Some((
6300 hunk_bounds,
6301 cx.theme().colors().version_control_modified,
6302 Corners::all(px(0.)),
6303 DiffHunkStatus::modified_none(),
6304 ))
6305 }
6306 DisplayDiffHunk::Unfolded {
6307 status,
6308 display_row_range,
6309 ..
6310 } => hitbox.as_ref().map(|hunk_hitbox| {
6311 let color = match split_side {
6312 Some(SplitSide::Left) => cx.theme().colors().version_control_deleted,
6313 Some(SplitSide::Right) => cx.theme().colors().version_control_added,
6314 None => match status.kind {
6315 DiffHunkStatusKind::Added => {
6316 cx.theme().colors().version_control_added
6317 }
6318 DiffHunkStatusKind::Modified => {
6319 cx.theme().colors().version_control_modified
6320 }
6321 DiffHunkStatusKind::Deleted => {
6322 cx.theme().colors().version_control_deleted
6323 }
6324 },
6325 };
6326 match status.kind {
6327 DiffHunkStatusKind::Deleted if display_row_range.is_empty() => (
6328 Bounds::new(
6329 point(
6330 hunk_hitbox.origin.x - hunk_hitbox.size.width,
6331 hunk_hitbox.origin.y,
6332 ),
6333 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
6334 ),
6335 color,
6336 Corners::all(1. * line_height),
6337 *status,
6338 ),
6339 _ => (hunk_hitbox.bounds, color, Corners::all(px(0.)), *status),
6340 }
6341 }),
6342 };
6343
6344 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
6345 // Flatten the background color with the editor color to prevent
6346 // elements below transparent hunks from showing through
6347 let flattened_background_color = cx
6348 .theme()
6349 .colors()
6350 .editor_background
6351 .blend(background_color);
6352
6353 if !Self::diff_hunk_hollow(status, cx) {
6354 window.paint_quad(quad(
6355 hunk_bounds,
6356 corner_radii,
6357 flattened_background_color,
6358 Edges::default(),
6359 transparent_black(),
6360 BorderStyle::default(),
6361 ));
6362 } else {
6363 let flattened_unstaged_background_color = cx
6364 .theme()
6365 .colors()
6366 .editor_background
6367 .blend(background_color.opacity(0.3));
6368
6369 window.paint_quad(quad(
6370 hunk_bounds,
6371 corner_radii,
6372 flattened_unstaged_background_color,
6373 Edges::all(px(1.0)),
6374 flattened_background_color,
6375 BorderStyle::Solid,
6376 ));
6377 }
6378 }
6379 }
6380 });
6381 }
6382
6383 fn gutter_strip_width(line_height: Pixels) -> Pixels {
6384 (0.275 * line_height).floor()
6385 }
6386
6387 fn diff_hunk_bounds(
6388 snapshot: &EditorSnapshot,
6389 line_height: Pixels,
6390 gutter_bounds: Bounds<Pixels>,
6391 hunk: &DisplayDiffHunk,
6392 ) -> Bounds<Pixels> {
6393 let scroll_position = snapshot.scroll_position();
6394 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
6395 let gutter_strip_width = Self::gutter_strip_width(line_height);
6396
6397 match hunk {
6398 DisplayDiffHunk::Folded { display_row, .. } => {
6399 let start_y = (display_row.as_f64() * ScrollPixelOffset::from(line_height)
6400 - scroll_top)
6401 .into();
6402 let end_y = start_y + line_height;
6403 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6404 let highlight_size = size(gutter_strip_width, end_y - start_y);
6405 Bounds::new(highlight_origin, highlight_size)
6406 }
6407 DisplayDiffHunk::Unfolded {
6408 display_row_range,
6409 status,
6410 ..
6411 } => {
6412 if status.is_deleted() && display_row_range.is_empty() {
6413 let row = display_row_range.start;
6414
6415 let offset = ScrollPixelOffset::from(line_height / 2.);
6416 let start_y =
6417 (row.as_f64() * ScrollPixelOffset::from(line_height) - offset - scroll_top)
6418 .into();
6419 let end_y = start_y + line_height;
6420
6421 let width = (0.35 * line_height).floor();
6422 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6423 let highlight_size = size(width, end_y - start_y);
6424 Bounds::new(highlight_origin, highlight_size)
6425 } else {
6426 let start_row = display_row_range.start;
6427 let end_row = display_row_range.end;
6428 // If we're in a multibuffer, row range span might include an
6429 // excerpt header, so if we were to draw the marker straight away,
6430 // the hunk might include the rows of that header.
6431 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
6432 // Instead, we simply check whether the range we're dealing with includes
6433 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
6434 let end_row_in_current_excerpt = snapshot
6435 .blocks_in_range(start_row..end_row)
6436 .find_map(|(start_row, block)| {
6437 if matches!(
6438 block,
6439 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
6440 ) {
6441 Some(start_row)
6442 } else {
6443 None
6444 }
6445 })
6446 .unwrap_or(end_row);
6447
6448 let start_y = (start_row.as_f64() * ScrollPixelOffset::from(line_height)
6449 - scroll_top)
6450 .into();
6451 let end_y = Pixels::from(
6452 end_row_in_current_excerpt.as_f64() * ScrollPixelOffset::from(line_height)
6453 - scroll_top,
6454 );
6455
6456 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6457 let highlight_size = size(gutter_strip_width, end_y - start_y);
6458 Bounds::new(highlight_origin, highlight_size)
6459 }
6460 }
6461 }
6462 }
6463
6464 fn paint_gutter_indicators(
6465 &self,
6466 layout: &mut EditorLayout,
6467 window: &mut Window,
6468 cx: &mut App,
6469 ) {
6470 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6471 window.with_element_namespace("crease_toggles", |window| {
6472 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
6473 crease_toggle.paint(window, cx);
6474 }
6475 });
6476
6477 window.with_element_namespace("expand_toggles", |window| {
6478 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
6479 expand_toggle.paint(window, cx);
6480 }
6481 });
6482
6483 for bookmark in layout.bookmarks.iter_mut() {
6484 bookmark.paint(window, cx);
6485 }
6486
6487 for breakpoint in layout.breakpoints.iter_mut() {
6488 breakpoint.paint(window, cx);
6489 }
6490
6491 for test_indicator in layout.test_indicators.iter_mut() {
6492 test_indicator.paint(window, cx);
6493 }
6494
6495 if let Some(diff_review_button) = layout.diff_review_button.as_mut() {
6496 diff_review_button.paint(window, cx);
6497 }
6498 });
6499 }
6500
6501 fn paint_gutter_highlights(
6502 &self,
6503 layout: &mut EditorLayout,
6504 window: &mut Window,
6505 cx: &mut App,
6506 ) {
6507 for (_, hunk_hitbox) in &layout.display_hunks {
6508 if let Some(hunk_hitbox) = hunk_hitbox
6509 && !self
6510 .editor
6511 .read(cx)
6512 .buffer()
6513 .read(cx)
6514 .all_diff_hunks_expanded()
6515 {
6516 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
6517 }
6518 }
6519
6520 let show_git_gutter = layout
6521 .position_map
6522 .snapshot
6523 .show_git_diff_gutter
6524 .unwrap_or_else(|| {
6525 matches!(
6526 ProjectSettings::get_global(cx).git.git_gutter,
6527 GitGutterSetting::TrackedFiles
6528 )
6529 });
6530 if show_git_gutter {
6531 Self::paint_gutter_diff_hunks(layout, self.split_side, window, cx)
6532 }
6533
6534 let highlight_width = 0.275 * layout.position_map.line_height;
6535 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
6536 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6537 for (range, color) in &layout.highlighted_gutter_ranges {
6538 let start_row = if range.start.row() < layout.visible_display_row_range.start {
6539 layout.visible_display_row_range.start - DisplayRow(1)
6540 } else {
6541 range.start.row()
6542 };
6543 let end_row = if range.end.row() > layout.visible_display_row_range.end {
6544 layout.visible_display_row_range.end + DisplayRow(1)
6545 } else {
6546 range.end.row()
6547 };
6548
6549 let start_y = layout.gutter_hitbox.top()
6550 + Pixels::from(
6551 start_row.0 as f64
6552 * ScrollPixelOffset::from(layout.position_map.line_height)
6553 - layout.position_map.scroll_pixel_position.y,
6554 );
6555 let end_y = layout.gutter_hitbox.top()
6556 + Pixels::from(
6557 (end_row.0 + 1) as f64
6558 * ScrollPixelOffset::from(layout.position_map.line_height)
6559 - layout.position_map.scroll_pixel_position.y,
6560 );
6561 let bounds = Bounds::from_corners(
6562 point(layout.gutter_hitbox.left(), start_y),
6563 point(layout.gutter_hitbox.left() + highlight_width, end_y),
6564 );
6565 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
6566 }
6567 });
6568 }
6569
6570 fn paint_blamed_display_rows(
6571 &self,
6572 layout: &mut EditorLayout,
6573 window: &mut Window,
6574 cx: &mut App,
6575 ) {
6576 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
6577 return;
6578 };
6579
6580 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6581 for mut blame_element in blamed_display_rows.into_iter() {
6582 blame_element.paint(window, cx);
6583 }
6584 })
6585 }
6586
6587 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6588 window.with_content_mask(
6589 Some(ContentMask {
6590 bounds: layout.position_map.text_hitbox.bounds,
6591 }),
6592 |window| {
6593 let editor = self.editor.read(cx);
6594 if editor.mouse_cursor_hidden {
6595 window.set_window_cursor_style(CursorStyle::None);
6596 } else if let SelectionDragState::ReadyToDrag {
6597 mouse_down_time, ..
6598 } = &editor.selection_drag_state
6599 {
6600 let drag_and_drop_delay = Duration::from_millis(
6601 EditorSettings::get_global(cx)
6602 .drag_and_drop_selection
6603 .delay
6604 .0,
6605 );
6606 if mouse_down_time.elapsed() >= drag_and_drop_delay {
6607 window.set_cursor_style(
6608 CursorStyle::DragCopy,
6609 &layout.position_map.text_hitbox,
6610 );
6611 }
6612 } else if matches!(
6613 editor.selection_drag_state,
6614 SelectionDragState::Dragging { .. }
6615 ) {
6616 window
6617 .set_cursor_style(CursorStyle::DragCopy, &layout.position_map.text_hitbox);
6618 } else if editor
6619 .hovered_link_state
6620 .as_ref()
6621 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
6622 {
6623 window.set_cursor_style(
6624 CursorStyle::PointingHand,
6625 &layout.position_map.text_hitbox,
6626 );
6627 } else {
6628 window.set_cursor_style(CursorStyle::IBeam, &layout.position_map.text_hitbox);
6629 };
6630
6631 self.paint_lines_background(layout, window, cx);
6632 let invisible_display_ranges = self.paint_highlights(layout, window, cx);
6633 self.paint_document_colors(layout, window);
6634 self.paint_lines(&invisible_display_ranges, layout, window, cx);
6635 self.paint_redactions(layout, window);
6636 self.paint_navigation_overlays(layout, window, cx);
6637 self.paint_cursors(layout, window, cx);
6638 self.paint_inline_diagnostics(layout, window, cx);
6639 self.paint_inline_blame(layout, window, cx);
6640 self.paint_inline_code_actions(layout, window, cx);
6641 self.paint_diff_hunk_controls(layout, window, cx);
6642 window.with_element_namespace("crease_trailers", |window| {
6643 for trailer in layout.crease_trailers.iter_mut().flatten() {
6644 trailer.element.paint(window, cx);
6645 }
6646 });
6647 },
6648 )
6649 }
6650
6651 fn paint_highlights(
6652 &mut self,
6653 layout: &mut EditorLayout,
6654 window: &mut Window,
6655 cx: &mut App,
6656 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
6657 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6658 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
6659 let line_end_overshoot = 0.15 * layout.position_map.line_height;
6660 for (range, color) in &layout.highlighted_ranges {
6661 self.paint_highlighted_range(
6662 range.clone(),
6663 true,
6664 *color,
6665 Pixels::ZERO,
6666 line_end_overshoot,
6667 layout,
6668 window,
6669 );
6670 }
6671
6672 let corner_radius = if EditorSettings::get_global(cx).rounded_selection {
6673 0.15 * layout.position_map.line_height
6674 } else {
6675 Pixels::ZERO
6676 };
6677
6678 for (player_color, selections) in &layout.selections {
6679 for selection in selections.iter() {
6680 self.paint_highlighted_range(
6681 selection.range.clone(),
6682 true,
6683 player_color.selection,
6684 corner_radius,
6685 corner_radius * 2.,
6686 layout,
6687 window,
6688 );
6689
6690 if selection.is_local && !selection.range.is_empty() {
6691 invisible_display_ranges.push(selection.range.clone());
6692 }
6693 }
6694 }
6695 invisible_display_ranges
6696 })
6697 }
6698
6699 fn paint_lines(
6700 &mut self,
6701 invisible_display_ranges: &[Range<DisplayPoint>],
6702 layout: &mut EditorLayout,
6703 window: &mut Window,
6704 cx: &mut App,
6705 ) {
6706 let whitespace_setting = self
6707 .editor
6708 .read(cx)
6709 .buffer
6710 .read(cx)
6711 .language_settings(cx)
6712 .show_whitespaces;
6713
6714 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6715 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6716 line_with_invisibles.draw(
6717 layout,
6718 row,
6719 layout.content_origin,
6720 whitespace_setting,
6721 invisible_display_ranges,
6722 window,
6723 cx,
6724 )
6725 }
6726
6727 for line_element in &mut layout.line_elements {
6728 line_element.paint(window, cx);
6729 }
6730 }
6731
6732 fn paint_sticky_headers(
6733 &mut self,
6734 layout: &mut EditorLayout,
6735 window: &mut Window,
6736 cx: &mut App,
6737 ) {
6738 let Some(mut sticky_headers) = layout.sticky_headers.take() else {
6739 return;
6740 };
6741
6742 if sticky_headers.lines.is_empty() {
6743 layout.sticky_headers = Some(sticky_headers);
6744 return;
6745 }
6746
6747 let whitespace_setting = self
6748 .editor
6749 .read(cx)
6750 .buffer
6751 .read(cx)
6752 .language_settings(cx)
6753 .show_whitespaces;
6754 sticky_headers.paint(layout, whitespace_setting, window, cx);
6755
6756 let sticky_header_hitboxes: Vec<Hitbox> = sticky_headers
6757 .lines
6758 .iter()
6759 .map(|line| line.hitbox.clone())
6760 .collect();
6761 let hovered_hitbox = sticky_header_hitboxes
6762 .iter()
6763 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6764
6765 window.on_mouse_event(move |_: &MouseMoveEvent, phase, window, _cx| {
6766 if !phase.bubble() {
6767 return;
6768 }
6769
6770 let current_hover = sticky_header_hitboxes
6771 .iter()
6772 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6773 if hovered_hitbox != current_hover {
6774 window.refresh();
6775 }
6776 });
6777
6778 let position_map = layout.position_map.clone();
6779
6780 for (line_index, line) in sticky_headers.lines.iter().enumerate() {
6781 let editor = self.editor.clone();
6782 let hitbox = line.hitbox.clone();
6783 let row = line.row;
6784 let line_layout = line.line.clone();
6785 let position_map = position_map.clone();
6786 window.on_mouse_event(move |event: &MouseDownEvent, phase, window, cx| {
6787 if !phase.bubble() {
6788 return;
6789 }
6790
6791 if event.button == MouseButton::Left && hitbox.is_hovered(window) {
6792 let point_for_position =
6793 position_map.point_for_position_on_line(event.position, row, &line_layout);
6794
6795 editor.update(cx, |editor, cx| {
6796 let snapshot = editor.snapshot(window, cx);
6797 let anchor = snapshot
6798 .display_snapshot
6799 .display_point_to_anchor(point_for_position.nearest_valid, Bias::Left);
6800 editor.change_selections(
6801 SelectionEffects::scroll(Autoscroll::top_relative(line_index)),
6802 window,
6803 cx,
6804 |selections| {
6805 selections.clear_disjoint();
6806 selections.set_pending_anchor_range(
6807 anchor..anchor,
6808 crate::SelectMode::Character,
6809 );
6810 },
6811 );
6812 cx.stop_propagation();
6813 });
6814 }
6815 });
6816 }
6817
6818 let text_bounds = layout.position_map.text_hitbox.bounds;
6819 let border_top = text_bounds.top()
6820 + sticky_headers.lines.last().unwrap().offset
6821 + layout.position_map.line_height;
6822 let separator_height = px(1.);
6823 let border_bounds = Bounds::from_corners(
6824 point(layout.gutter_hitbox.bounds.left(), border_top),
6825 point(text_bounds.right(), border_top + separator_height),
6826 );
6827 window.paint_quad(fill(border_bounds, cx.theme().colors().border_variant));
6828
6829 layout.sticky_headers = Some(sticky_headers);
6830 }
6831
6832 fn paint_lines_background(
6833 &mut self,
6834 layout: &mut EditorLayout,
6835 window: &mut Window,
6836 cx: &mut App,
6837 ) {
6838 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6839 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6840 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
6841 }
6842 }
6843
6844 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
6845 if layout.redacted_ranges.is_empty() {
6846 return;
6847 }
6848
6849 let line_end_overshoot = layout.line_end_overshoot();
6850
6851 // A softer than perfect black
6852 let redaction_color = gpui::rgb(0x0e1111);
6853
6854 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6855 for range in layout.redacted_ranges.iter() {
6856 self.paint_highlighted_range(
6857 range.clone(),
6858 true,
6859 redaction_color.into(),
6860 Pixels::ZERO,
6861 line_end_overshoot,
6862 layout,
6863 window,
6864 );
6865 }
6866 });
6867 }
6868
6869 fn paint_navigation_overlays(
6870 &mut self,
6871 layout: &mut EditorLayout,
6872 window: &mut Window,
6873 cx: &mut App,
6874 ) {
6875 window.with_element_namespace("navigation_overlays", |window| {
6876 for command in &mut layout.navigation_overlay_paint_commands {
6877 let NavigationOverlayPaintCommand::Label(label) = command;
6878 label.element.paint(window, cx);
6879 }
6880 });
6881 }
6882
6883 fn paint_document_colors(&self, layout: &mut EditorLayout, window: &mut Window) {
6884 let Some((colors_render_mode, image_colors)) = &layout.document_colors else {
6885 return;
6886 };
6887 if image_colors.is_empty()
6888 || colors_render_mode == &DocumentColorsRenderMode::None
6889 || colors_render_mode == &DocumentColorsRenderMode::Inlay
6890 {
6891 return;
6892 }
6893
6894 let line_end_overshoot = layout.line_end_overshoot();
6895
6896 for (range, color) in image_colors {
6897 match colors_render_mode {
6898 DocumentColorsRenderMode::Inlay | DocumentColorsRenderMode::None => return,
6899 DocumentColorsRenderMode::Background => {
6900 self.paint_highlighted_range(
6901 range.clone(),
6902 true,
6903 *color,
6904 Pixels::ZERO,
6905 line_end_overshoot,
6906 layout,
6907 window,
6908 );
6909 }
6910 DocumentColorsRenderMode::Border => {
6911 self.paint_highlighted_range(
6912 range.clone(),
6913 false,
6914 *color,
6915 Pixels::ZERO,
6916 line_end_overshoot,
6917 layout,
6918 window,
6919 );
6920 }
6921 }
6922 }
6923 }
6924
6925 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6926 for cursor in &mut layout.visible_cursors {
6927 cursor.paint(layout.content_origin, window, cx);
6928 }
6929 }
6930
6931 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6932 let Some(scrollbars_layout) = layout.scrollbars_layout.take() else {
6933 return;
6934 };
6935 let any_scrollbar_dragged = self.editor.read(cx).scroll_manager.any_scrollbar_dragged();
6936
6937 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
6938 let hitbox = &scrollbar_layout.hitbox;
6939 if scrollbars_layout.visible {
6940 let scrollbar_edges = match axis {
6941 ScrollbarAxis::Horizontal => Edges {
6942 top: Pixels::ZERO,
6943 right: Pixels::ZERO,
6944 bottom: Pixels::ZERO,
6945 left: Pixels::ZERO,
6946 },
6947 ScrollbarAxis::Vertical => Edges {
6948 top: Pixels::ZERO,
6949 right: Pixels::ZERO,
6950 bottom: Pixels::ZERO,
6951 left: ScrollbarLayout::BORDER_WIDTH,
6952 },
6953 };
6954
6955 window.paint_layer(hitbox.bounds, |window| {
6956 window.paint_quad(quad(
6957 hitbox.bounds,
6958 Corners::default(),
6959 cx.theme().colors().scrollbar_track_background,
6960 scrollbar_edges,
6961 cx.theme().colors().scrollbar_track_border,
6962 BorderStyle::Solid,
6963 ));
6964
6965 if axis == ScrollbarAxis::Vertical {
6966 let fast_markers =
6967 self.collect_fast_scrollbar_markers(layout, scrollbar_layout, cx);
6968 // Refresh slow scrollbar markers in the background. Below, we
6969 // paint whatever markers have already been computed.
6970 self.refresh_slow_scrollbar_markers(layout, scrollbar_layout, window, cx);
6971
6972 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
6973 for marker in markers.iter().chain(&fast_markers) {
6974 let mut marker = marker.clone();
6975 marker.bounds.origin += hitbox.origin;
6976 window.paint_quad(marker);
6977 }
6978 }
6979
6980 if let Some(thumb_bounds) = scrollbar_layout.thumb_bounds {
6981 let scrollbar_thumb_color = match scrollbar_layout.thumb_state {
6982 ScrollbarThumbState::Dragging => {
6983 cx.theme().colors().scrollbar_thumb_active_background
6984 }
6985 ScrollbarThumbState::Hovered => {
6986 cx.theme().colors().scrollbar_thumb_hover_background
6987 }
6988 ScrollbarThumbState::Idle => {
6989 cx.theme().colors().scrollbar_thumb_background
6990 }
6991 };
6992 window.paint_quad(quad(
6993 thumb_bounds,
6994 Corners::default(),
6995 scrollbar_thumb_color,
6996 scrollbar_edges,
6997 cx.theme().colors().scrollbar_thumb_border,
6998 BorderStyle::Solid,
6999 ));
7000
7001 if any_scrollbar_dragged {
7002 window.set_window_cursor_style(CursorStyle::Arrow);
7003 } else {
7004 window.set_cursor_style(CursorStyle::Arrow, hitbox);
7005 }
7006 }
7007 })
7008 }
7009 }
7010
7011 window.on_mouse_event({
7012 let editor = self.editor.clone();
7013 let scrollbars_layout = scrollbars_layout.clone();
7014
7015 let mut mouse_position = window.mouse_position();
7016 move |event: &MouseMoveEvent, phase, window, cx| {
7017 if phase == DispatchPhase::Capture {
7018 return;
7019 }
7020
7021 editor.update(cx, |editor, cx| {
7022 if let Some((scrollbar_layout, axis)) = event
7023 .pressed_button
7024 .filter(|button| *button == MouseButton::Left)
7025 .and(editor.scroll_manager.dragging_scrollbar_axis())
7026 .and_then(|axis| {
7027 scrollbars_layout
7028 .iter_scrollbars()
7029 .find(|(_, a)| *a == axis)
7030 })
7031 {
7032 let ScrollbarLayout {
7033 hitbox,
7034 text_unit_size,
7035 ..
7036 } = scrollbar_layout;
7037
7038 let old_position = mouse_position.along(axis);
7039 let new_position = event.position.along(axis);
7040 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
7041 .contains(&old_position)
7042 {
7043 let position = editor.scroll_position(cx).apply_along(axis, |p| {
7044 (p + ScrollOffset::from(
7045 (new_position - old_position) / *text_unit_size,
7046 ))
7047 .max(0.)
7048 });
7049 editor.set_scroll_position(position, window, cx);
7050 }
7051
7052 editor.scroll_manager.show_scrollbars(window, cx);
7053 cx.stop_propagation();
7054 } else if let Some((layout, axis)) = scrollbars_layout
7055 .get_hovered_axis(window)
7056 .filter(|_| !event.dragging())
7057 {
7058 if layout.thumb_hovered(&event.position) {
7059 editor
7060 .scroll_manager
7061 .set_hovered_scroll_thumb_axis(axis, cx);
7062 } else {
7063 editor.scroll_manager.reset_scrollbar_state(cx);
7064 }
7065
7066 editor.scroll_manager.show_scrollbars(window, cx);
7067 } else {
7068 editor.scroll_manager.reset_scrollbar_state(cx);
7069 }
7070
7071 mouse_position = event.position;
7072 })
7073 }
7074 });
7075
7076 if any_scrollbar_dragged {
7077 window.on_mouse_event({
7078 let editor = self.editor.clone();
7079 move |_: &MouseUpEvent, phase, window, cx| {
7080 if phase == DispatchPhase::Capture {
7081 return;
7082 }
7083
7084 editor.update(cx, |editor, cx| {
7085 if let Some((_, axis)) = scrollbars_layout.get_hovered_axis(window) {
7086 editor
7087 .scroll_manager
7088 .set_hovered_scroll_thumb_axis(axis, cx);
7089 } else {
7090 editor.scroll_manager.reset_scrollbar_state(cx);
7091 }
7092 cx.stop_propagation();
7093 });
7094 }
7095 });
7096 } else {
7097 window.on_mouse_event({
7098 let editor = self.editor.clone();
7099
7100 move |event: &MouseDownEvent, phase, window, cx| {
7101 if phase == DispatchPhase::Capture {
7102 return;
7103 }
7104 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
7105 else {
7106 return;
7107 };
7108
7109 let ScrollbarLayout {
7110 hitbox,
7111 visible_range,
7112 text_unit_size,
7113 thumb_bounds,
7114 ..
7115 } = scrollbar_layout;
7116
7117 let Some(thumb_bounds) = thumb_bounds else {
7118 return;
7119 };
7120
7121 editor.update(cx, |editor, cx| {
7122 editor
7123 .scroll_manager
7124 .set_dragged_scroll_thumb_axis(axis, cx);
7125
7126 let event_position = event.position.along(axis);
7127
7128 if event_position < thumb_bounds.origin.along(axis)
7129 || thumb_bounds.bottom_right().along(axis) < event_position
7130 {
7131 let center_position = ((event_position - hitbox.origin.along(axis))
7132 / *text_unit_size)
7133 .round() as u32;
7134 let start_position = center_position.saturating_sub(
7135 (visible_range.end - visible_range.start) as u32 / 2,
7136 );
7137
7138 let position = editor
7139 .scroll_position(cx)
7140 .apply_along(axis, |_| start_position as ScrollOffset);
7141
7142 editor.set_scroll_position(position, window, cx);
7143 } else {
7144 editor.scroll_manager.show_scrollbars(window, cx);
7145 }
7146
7147 cx.stop_propagation();
7148 });
7149 }
7150 });
7151 }
7152 }
7153
7154 fn collect_fast_scrollbar_markers(
7155 &self,
7156 layout: &EditorLayout,
7157 scrollbar_layout: &ScrollbarLayout,
7158 cx: &mut App,
7159 ) -> Vec<PaintQuad> {
7160 const LIMIT: usize = 100;
7161 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
7162 return vec![];
7163 }
7164 let cursor_ranges = layout
7165 .cursors
7166 .iter()
7167 .map(|(point, color)| ColoredRange {
7168 start: point.row(),
7169 end: point.row(),
7170 color: *color,
7171 })
7172 .collect_vec();
7173 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
7174 }
7175
7176 fn refresh_slow_scrollbar_markers(
7177 &self,
7178 layout: &EditorLayout,
7179 scrollbar_layout: &ScrollbarLayout,
7180 window: &mut Window,
7181 cx: &mut App,
7182 ) {
7183 self.editor.update(cx, |editor, cx| {
7184 if editor.buffer_kind(cx) != ItemBufferKind::Singleton
7185 || !editor
7186 .scrollbar_marker_state
7187 .should_refresh(scrollbar_layout.hitbox.size)
7188 {
7189 return;
7190 }
7191
7192 let scrollbar_layout = scrollbar_layout.clone();
7193 let background_highlights = editor.background_highlights.clone();
7194 let snapshot = layout.position_map.snapshot.clone();
7195 let theme = cx.theme().clone();
7196 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
7197
7198 editor.scrollbar_marker_state.dirty = false;
7199 editor.scrollbar_marker_state.pending_refresh =
7200 Some(cx.spawn_in(window, async move |editor, cx| {
7201 let scrollbar_size = scrollbar_layout.hitbox.size;
7202 let scrollbar_markers = cx
7203 .background_spawn(async move {
7204 let max_point = snapshot.display_snapshot.buffer_snapshot().max_point();
7205 let mut marker_quads = Vec::new();
7206 if scrollbar_settings.git_diff {
7207 let marker_row_ranges =
7208 snapshot.buffer_snapshot().diff_hunks().map(|hunk| {
7209 let start_display_row =
7210 MultiBufferPoint::new(hunk.row_range.start.0, 0)
7211 .to_display_point(&snapshot.display_snapshot)
7212 .row();
7213 let mut end_display_row =
7214 MultiBufferPoint::new(hunk.row_range.end.0, 0)
7215 .to_display_point(&snapshot.display_snapshot)
7216 .row();
7217 if end_display_row != start_display_row {
7218 end_display_row.0 -= 1;
7219 }
7220 let color = match &hunk.status().kind {
7221 DiffHunkStatusKind::Added => {
7222 theme.colors().version_control_added
7223 }
7224 DiffHunkStatusKind::Modified => {
7225 theme.colors().version_control_modified
7226 }
7227 DiffHunkStatusKind::Deleted => {
7228 theme.colors().version_control_deleted
7229 }
7230 };
7231 ColoredRange {
7232 start: start_display_row,
7233 end: end_display_row,
7234 color,
7235 }
7236 });
7237
7238 marker_quads.extend(
7239 scrollbar_layout
7240 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
7241 );
7242 }
7243
7244 for (background_highlight_id, (_, background_ranges)) in
7245 background_highlights.iter()
7246 {
7247 let is_search_highlights = *background_highlight_id
7248 == HighlightKey::BufferSearchHighlights;
7249 let is_text_highlights =
7250 *background_highlight_id == HighlightKey::SelectedTextHighlight;
7251 let is_symbol_occurrences = *background_highlight_id
7252 == HighlightKey::DocumentHighlightRead
7253 || *background_highlight_id
7254 == HighlightKey::DocumentHighlightWrite;
7255 if (is_search_highlights && scrollbar_settings.search_results)
7256 || (is_text_highlights && scrollbar_settings.selected_text)
7257 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
7258 {
7259 let mut color = theme.status().info;
7260 if is_symbol_occurrences {
7261 color.fade_out(0.5);
7262 }
7263 let marker_row_ranges = background_ranges.iter().map(|range| {
7264 let display_start = range
7265 .start
7266 .to_display_point(&snapshot.display_snapshot);
7267 let display_end =
7268 range.end.to_display_point(&snapshot.display_snapshot);
7269 ColoredRange {
7270 start: display_start.row(),
7271 end: display_end.row(),
7272 color,
7273 }
7274 });
7275 marker_quads.extend(
7276 scrollbar_layout
7277 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
7278 );
7279 }
7280 }
7281
7282 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
7283 let diagnostics = snapshot
7284 .buffer_snapshot()
7285 .diagnostics_in_range::<Point>(Point::zero()..max_point)
7286 // Don't show diagnostics the user doesn't care about
7287 .filter(|diagnostic| {
7288 match (
7289 scrollbar_settings.diagnostics,
7290 diagnostic.diagnostic.severity,
7291 ) {
7292 (ScrollbarDiagnostics::All, _) => true,
7293 (
7294 ScrollbarDiagnostics::Error,
7295 lsp::DiagnosticSeverity::ERROR,
7296 ) => true,
7297 (
7298 ScrollbarDiagnostics::Warning,
7299 lsp::DiagnosticSeverity::ERROR
7300 | lsp::DiagnosticSeverity::WARNING,
7301 ) => true,
7302 (
7303 ScrollbarDiagnostics::Information,
7304 lsp::DiagnosticSeverity::ERROR
7305 | lsp::DiagnosticSeverity::WARNING
7306 | lsp::DiagnosticSeverity::INFORMATION,
7307 ) => true,
7308 (_, _) => false,
7309 }
7310 })
7311 // We want to sort by severity, in order to paint the most severe diagnostics last.
7312 .sorted_by_key(|diagnostic| {
7313 std::cmp::Reverse(diagnostic.diagnostic.severity)
7314 });
7315
7316 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
7317 let start_display = diagnostic
7318 .range
7319 .start
7320 .to_display_point(&snapshot.display_snapshot);
7321 let end_display = diagnostic
7322 .range
7323 .end
7324 .to_display_point(&snapshot.display_snapshot);
7325 let color = match diagnostic.diagnostic.severity {
7326 lsp::DiagnosticSeverity::ERROR => theme.status().error,
7327 lsp::DiagnosticSeverity::WARNING => theme.status().warning,
7328 lsp::DiagnosticSeverity::INFORMATION => theme.status().info,
7329 _ => theme.status().hint,
7330 };
7331 ColoredRange {
7332 start: start_display.row(),
7333 end: end_display.row(),
7334 color,
7335 }
7336 });
7337 marker_quads.extend(
7338 scrollbar_layout
7339 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
7340 );
7341 }
7342
7343 Arc::from(marker_quads)
7344 })
7345 .await;
7346
7347 editor.update(cx, |editor, cx| {
7348 editor.scrollbar_marker_state.markers = scrollbar_markers;
7349 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
7350 editor.scrollbar_marker_state.pending_refresh = None;
7351 cx.notify();
7352 })?;
7353
7354 Ok(())
7355 }));
7356 });
7357 }
7358
7359 fn paint_highlighted_range(
7360 &self,
7361 range: Range<DisplayPoint>,
7362 fill: bool,
7363 color: Hsla,
7364 corner_radius: Pixels,
7365 line_end_overshoot: Pixels,
7366 layout: &EditorLayout,
7367 window: &mut Window,
7368 ) {
7369 let start_row = layout.visible_display_row_range.start;
7370 let end_row = layout.visible_display_row_range.end;
7371 if range.start != range.end {
7372 let row_range = if range.end.column() == 0 {
7373 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
7374 } else {
7375 cmp::max(range.start.row(), start_row)
7376 ..cmp::min(range.end.row().next_row(), end_row)
7377 };
7378
7379 let highlighted_range = HighlightedRange {
7380 color,
7381 line_height: layout.position_map.line_height,
7382 corner_radius,
7383 start_y: layout.content_origin.y
7384 + Pixels::from(
7385 (row_range.start.as_f64() - layout.position_map.scroll_position.y)
7386 * ScrollOffset::from(layout.position_map.line_height),
7387 ),
7388 lines: row_range
7389 .iter_rows()
7390 .map(|row| {
7391 let line_layout =
7392 &layout.position_map.line_layouts[row.minus(start_row) as usize];
7393 let alignment_offset =
7394 line_layout.alignment_offset(layout.text_align, layout.content_width);
7395 HighlightedRangeLine {
7396 start_x: if row == range.start.row() {
7397 layout.content_origin.x
7398 + Pixels::from(
7399 ScrollPixelOffset::from(
7400 line_layout.x_for_index(range.start.column() as usize)
7401 + alignment_offset,
7402 ) - layout.position_map.scroll_pixel_position.x,
7403 )
7404 } else {
7405 layout.content_origin.x + alignment_offset
7406 - Pixels::from(layout.position_map.scroll_pixel_position.x)
7407 },
7408 end_x: if row == range.end.row() {
7409 layout.content_origin.x
7410 + Pixels::from(
7411 ScrollPixelOffset::from(
7412 line_layout.x_for_index(range.end.column() as usize)
7413 + alignment_offset,
7414 ) - layout.position_map.scroll_pixel_position.x,
7415 )
7416 } else {
7417 Pixels::from(
7418 ScrollPixelOffset::from(
7419 layout.content_origin.x
7420 + line_layout.width
7421 + alignment_offset
7422 + line_end_overshoot,
7423 ) - layout.position_map.scroll_pixel_position.x,
7424 )
7425 },
7426 }
7427 })
7428 .collect(),
7429 };
7430
7431 highlighted_range.paint(fill, layout.position_map.text_hitbox.bounds, window);
7432 }
7433 }
7434
7435 fn paint_inline_diagnostics(
7436 &mut self,
7437 layout: &mut EditorLayout,
7438 window: &mut Window,
7439 cx: &mut App,
7440 ) {
7441 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
7442 inline_diagnostic.1.paint(window, cx);
7443 }
7444 }
7445
7446 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7447 if let Some(mut blame_layout) = layout.inline_blame_layout.take() {
7448 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7449 blame_layout.element.paint(window, cx);
7450 })
7451 }
7452 }
7453
7454 fn paint_inline_code_actions(
7455 &mut self,
7456 layout: &mut EditorLayout,
7457 window: &mut Window,
7458 cx: &mut App,
7459 ) {
7460 if let Some(mut inline_code_actions) = layout.inline_code_actions.take() {
7461 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7462 inline_code_actions.paint(window, cx);
7463 })
7464 }
7465 }
7466
7467 fn paint_diff_hunk_controls(
7468 &mut self,
7469 layout: &mut EditorLayout,
7470 window: &mut Window,
7471 cx: &mut App,
7472 ) {
7473 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
7474 diff_hunk_control.paint(window, cx);
7475 }
7476 }
7477
7478 fn paint_minimap(&self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7479 if let Some(mut layout) = layout.minimap.take() {
7480 let minimap_hitbox = layout.thumb_layout.hitbox.clone();
7481 let dragging_minimap = self.editor.read(cx).scroll_manager.is_dragging_minimap();
7482
7483 window.paint_layer(layout.thumb_layout.hitbox.bounds, |window| {
7484 window.with_element_namespace("minimap", |window| {
7485 layout.minimap.paint(window, cx);
7486 if let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds {
7487 let minimap_thumb_color = match layout.thumb_layout.thumb_state {
7488 ScrollbarThumbState::Idle => {
7489 cx.theme().colors().minimap_thumb_background
7490 }
7491 ScrollbarThumbState::Hovered => {
7492 cx.theme().colors().minimap_thumb_hover_background
7493 }
7494 ScrollbarThumbState::Dragging => {
7495 cx.theme().colors().minimap_thumb_active_background
7496 }
7497 };
7498 let minimap_thumb_border = match layout.thumb_border_style {
7499 MinimapThumbBorder::Full => Edges::all(ScrollbarLayout::BORDER_WIDTH),
7500 MinimapThumbBorder::LeftOnly => Edges {
7501 left: ScrollbarLayout::BORDER_WIDTH,
7502 ..Default::default()
7503 },
7504 MinimapThumbBorder::LeftOpen => Edges {
7505 right: ScrollbarLayout::BORDER_WIDTH,
7506 top: ScrollbarLayout::BORDER_WIDTH,
7507 bottom: ScrollbarLayout::BORDER_WIDTH,
7508 ..Default::default()
7509 },
7510 MinimapThumbBorder::RightOpen => Edges {
7511 left: ScrollbarLayout::BORDER_WIDTH,
7512 top: ScrollbarLayout::BORDER_WIDTH,
7513 bottom: ScrollbarLayout::BORDER_WIDTH,
7514 ..Default::default()
7515 },
7516 MinimapThumbBorder::None => Default::default(),
7517 };
7518
7519 window.paint_layer(minimap_hitbox.bounds, |window| {
7520 window.paint_quad(quad(
7521 thumb_bounds,
7522 Corners::default(),
7523 minimap_thumb_color,
7524 minimap_thumb_border,
7525 cx.theme().colors().minimap_thumb_border,
7526 BorderStyle::Solid,
7527 ));
7528 });
7529 }
7530 });
7531 });
7532
7533 if dragging_minimap {
7534 window.set_window_cursor_style(CursorStyle::Arrow);
7535 } else {
7536 window.set_cursor_style(CursorStyle::Arrow, &minimap_hitbox);
7537 }
7538
7539 let minimap_axis = ScrollbarAxis::Vertical;
7540 let pixels_per_line = Pixels::from(
7541 ScrollPixelOffset::from(minimap_hitbox.size.height) / layout.max_scroll_top,
7542 )
7543 .min(layout.minimap_line_height);
7544
7545 let mut mouse_position = window.mouse_position();
7546
7547 window.on_mouse_event({
7548 let editor = self.editor.clone();
7549
7550 let minimap_hitbox = minimap_hitbox.clone();
7551
7552 move |event: &MouseMoveEvent, phase, window, cx| {
7553 if phase == DispatchPhase::Capture {
7554 return;
7555 }
7556
7557 editor.update(cx, |editor, cx| {
7558 if event.pressed_button == Some(MouseButton::Left)
7559 && editor.scroll_manager.is_dragging_minimap()
7560 {
7561 let old_position = mouse_position.along(minimap_axis);
7562 let new_position = event.position.along(minimap_axis);
7563 if (minimap_hitbox.origin.along(minimap_axis)
7564 ..minimap_hitbox.bottom_right().along(minimap_axis))
7565 .contains(&old_position)
7566 {
7567 let position =
7568 editor.scroll_position(cx).apply_along(minimap_axis, |p| {
7569 (p + ScrollPixelOffset::from(
7570 (new_position - old_position) / pixels_per_line,
7571 ))
7572 .max(0.)
7573 });
7574
7575 editor.set_scroll_position(position, window, cx);
7576 }
7577 cx.stop_propagation();
7578 } else if minimap_hitbox.is_hovered(window) {
7579 editor.scroll_manager.set_is_hovering_minimap_thumb(
7580 !event.dragging()
7581 && layout
7582 .thumb_layout
7583 .thumb_bounds
7584 .is_some_and(|bounds| bounds.contains(&event.position)),
7585 cx,
7586 );
7587
7588 // Stop hover events from propagating to the
7589 // underlying editor if the minimap hitbox is hovered
7590 if !event.dragging() {
7591 cx.stop_propagation();
7592 }
7593 } else {
7594 editor.scroll_manager.hide_minimap_thumb(cx);
7595 }
7596 mouse_position = event.position;
7597 });
7598 }
7599 });
7600
7601 if dragging_minimap {
7602 window.on_mouse_event({
7603 let editor = self.editor.clone();
7604 move |event: &MouseUpEvent, phase, window, cx| {
7605 if phase == DispatchPhase::Capture {
7606 return;
7607 }
7608
7609 editor.update(cx, |editor, cx| {
7610 if minimap_hitbox.is_hovered(window) {
7611 editor.scroll_manager.set_is_hovering_minimap_thumb(
7612 layout
7613 .thumb_layout
7614 .thumb_bounds
7615 .is_some_and(|bounds| bounds.contains(&event.position)),
7616 cx,
7617 );
7618 } else {
7619 editor.scroll_manager.hide_minimap_thumb(cx);
7620 }
7621 cx.stop_propagation();
7622 });
7623 }
7624 });
7625 } else {
7626 window.on_mouse_event({
7627 let editor = self.editor.clone();
7628
7629 move |event: &MouseDownEvent, phase, window, cx| {
7630 if phase == DispatchPhase::Capture || !minimap_hitbox.is_hovered(window) {
7631 return;
7632 }
7633
7634 let event_position = event.position;
7635
7636 let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds else {
7637 return;
7638 };
7639
7640 editor.update(cx, |editor, cx| {
7641 if !thumb_bounds.contains(&event_position) {
7642 let click_position =
7643 event_position.relative_to(&minimap_hitbox.origin).y;
7644
7645 let top_position = (click_position
7646 - thumb_bounds.size.along(minimap_axis) / 2.0)
7647 .max(Pixels::ZERO);
7648
7649 let scroll_offset = (layout.minimap_scroll_top
7650 + ScrollPixelOffset::from(
7651 top_position / layout.minimap_line_height,
7652 ))
7653 .min(layout.max_scroll_top);
7654
7655 let scroll_position = editor
7656 .scroll_position(cx)
7657 .apply_along(minimap_axis, |_| scroll_offset);
7658 editor.set_scroll_position(scroll_position, window, cx);
7659 }
7660
7661 editor.scroll_manager.set_is_dragging_minimap(cx);
7662 cx.stop_propagation();
7663 });
7664 }
7665 });
7666 }
7667 }
7668 }
7669
7670 fn paint_spacer_blocks(
7671 &mut self,
7672 layout: &mut EditorLayout,
7673 window: &mut Window,
7674 cx: &mut App,
7675 ) {
7676 for mut block in layout.spacer_blocks.drain(..) {
7677 let mut bounds = layout.hitbox.bounds;
7678 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
7679 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7680 block.element.paint(window, cx);
7681 })
7682 }
7683 }
7684
7685 fn paint_non_spacer_blocks(
7686 &mut self,
7687 layout: &mut EditorLayout,
7688 window: &mut Window,
7689 cx: &mut App,
7690 ) {
7691 for mut block in layout.blocks.drain(..) {
7692 if block.overlaps_gutter {
7693 block.element.paint(window, cx);
7694 } else {
7695 let mut bounds = layout.hitbox.bounds;
7696 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
7697 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7698 block.element.paint(window, cx);
7699 })
7700 }
7701 }
7702 }
7703
7704 fn paint_edit_prediction_popover(
7705 &mut self,
7706 layout: &mut EditorLayout,
7707 window: &mut Window,
7708 cx: &mut App,
7709 ) {
7710 if let Some(edit_prediction_popover) = layout.edit_prediction_popover.as_mut() {
7711 edit_prediction_popover.paint(window, cx);
7712 }
7713 }
7714
7715 fn paint_mouse_context_menu(
7716 &mut self,
7717 layout: &mut EditorLayout,
7718 window: &mut Window,
7719 cx: &mut App,
7720 ) {
7721 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
7722 mouse_context_menu.paint(window, cx);
7723 }
7724 }
7725
7726 fn paint_scroll_wheel_listener(
7727 &mut self,
7728 layout: &EditorLayout,
7729 window: &mut Window,
7730 cx: &mut App,
7731 ) {
7732 window.on_mouse_event({
7733 let position_map = layout.position_map.clone();
7734 let editor = self.editor.clone();
7735 let hitbox = layout.hitbox.clone();
7736 let mut delta = ScrollDelta::default();
7737
7738 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
7739 // accidentally turn off their scrolling.
7740 let base_scroll_sensitivity =
7741 EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
7742
7743 // Use a minimum fast_scroll_sensitivity for same reason above
7744 let fast_scroll_sensitivity = EditorSettings::get_global(cx)
7745 .fast_scroll_sensitivity
7746 .max(0.01);
7747
7748 move |event: &ScrollWheelEvent, phase, window, cx| {
7749 if phase == DispatchPhase::Bubble && hitbox.should_handle_scroll(window) {
7750 delta = delta.coalesce(event.delta);
7751
7752 if event.modifiers.secondary()
7753 && editor.read(cx).enable_mouse_wheel_zoom
7754 && EditorSettings::get_global(cx).mouse_wheel_zoom
7755 {
7756 let delta_y = match event.delta {
7757 ScrollDelta::Pixels(pixels) => pixels.y.into(),
7758 ScrollDelta::Lines(lines) => lines.y,
7759 };
7760
7761 if delta_y > 0.0 {
7762 theme_settings::increase_buffer_font_size(cx);
7763 } else if delta_y < 0.0 {
7764 theme_settings::decrease_buffer_font_size(cx);
7765 }
7766
7767 cx.stop_propagation();
7768 } else {
7769 let scroll_sensitivity = {
7770 if event.modifiers.alt {
7771 fast_scroll_sensitivity
7772 } else {
7773 base_scroll_sensitivity
7774 }
7775 };
7776
7777 editor.update(cx, |editor, cx| {
7778 let line_height = position_map.line_height;
7779 let glyph_width = position_map.em_layout_width;
7780 let (delta, axis) = match delta {
7781 gpui::ScrollDelta::Pixels(mut pixels) => {
7782 //Trackpad
7783 let axis =
7784 position_map.snapshot.ongoing_scroll.filter(&mut pixels);
7785 (pixels, axis)
7786 }
7787
7788 gpui::ScrollDelta::Lines(lines) => {
7789 //Not trackpad
7790 let pixels =
7791 point(lines.x * glyph_width, lines.y * line_height);
7792 (pixels, None)
7793 }
7794 };
7795
7796 let current_scroll_position = position_map.snapshot.scroll_position();
7797 let x = (current_scroll_position.x
7798 * ScrollPixelOffset::from(glyph_width)
7799 - ScrollPixelOffset::from(delta.x * scroll_sensitivity))
7800 / ScrollPixelOffset::from(glyph_width);
7801 let y = (current_scroll_position.y
7802 * ScrollPixelOffset::from(line_height)
7803 - ScrollPixelOffset::from(delta.y * scroll_sensitivity))
7804 / ScrollPixelOffset::from(line_height);
7805 let mut scroll_position =
7806 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
7807 let forbid_vertical_scroll =
7808 editor.scroll_manager.forbid_vertical_scroll();
7809 if forbid_vertical_scroll {
7810 scroll_position.y = current_scroll_position.y;
7811 }
7812
7813 if scroll_position != current_scroll_position {
7814 editor.scroll(scroll_position, axis, window, cx);
7815 cx.stop_propagation();
7816 } else if y < 0. {
7817 // Due to clamping, we may fail to detect cases of overscroll to the top;
7818 // We want the scroll manager to get an update in such cases and detect the change of direction
7819 // on the next frame.
7820 cx.notify();
7821 }
7822 });
7823 }
7824 }
7825 }
7826 });
7827 }
7828
7829 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
7830 if layout.mode.is_minimap() {
7831 return;
7832 }
7833
7834 self.paint_scroll_wheel_listener(layout, window, cx);
7835
7836 window.on_mouse_event({
7837 let position_map = layout.position_map.clone();
7838 let editor = self.editor.clone();
7839 let line_numbers = layout.line_numbers.clone();
7840
7841 move |event: &MouseDownEvent, phase, window, cx| {
7842 if phase == DispatchPhase::Bubble {
7843 match event.button {
7844 MouseButton::Left => editor.update(cx, |editor, cx| {
7845 let pending_mouse_down = editor
7846 .pending_mouse_down
7847 .get_or_insert_with(Default::default)
7848 .clone();
7849
7850 *pending_mouse_down.borrow_mut() = Some(event.clone());
7851
7852 Self::mouse_left_down(
7853 editor,
7854 event,
7855 &position_map,
7856 line_numbers.as_ref(),
7857 window,
7858 cx,
7859 );
7860 }),
7861 MouseButton::Right => editor.update(cx, |editor, cx| {
7862 Self::mouse_right_down(editor, event, &position_map, window, cx);
7863 }),
7864 MouseButton::Middle => editor.update(cx, |editor, cx| {
7865 Self::mouse_middle_down(editor, event, &position_map, window, cx);
7866 }),
7867 _ => {}
7868 };
7869 }
7870 }
7871 });
7872
7873 window.on_mouse_event({
7874 let editor = self.editor.clone();
7875 let position_map = layout.position_map.clone();
7876
7877 move |event: &MouseUpEvent, phase, window, cx| {
7878 if phase == DispatchPhase::Bubble {
7879 editor.update(cx, |editor, cx| {
7880 Self::mouse_up(editor, event, &position_map, window, cx)
7881 });
7882 }
7883 }
7884 });
7885
7886 window.on_mouse_event({
7887 let editor = self.editor.clone();
7888 let position_map = layout.position_map.clone();
7889 let mut captured_mouse_down = None;
7890
7891 move |event: &MouseUpEvent, phase, window, cx| match phase {
7892 // Clear the pending mouse down during the capture phase,
7893 // so that it happens even if another event handler stops
7894 // propagation.
7895 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
7896 let pending_mouse_down = editor
7897 .pending_mouse_down
7898 .get_or_insert_with(Default::default)
7899 .clone();
7900
7901 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
7902 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
7903 captured_mouse_down = pending_mouse_down.take();
7904 window.refresh();
7905 }
7906 }),
7907 // Fire click handlers during the bubble phase.
7908 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
7909 if let Some(mouse_down) = captured_mouse_down.take() {
7910 let event = ClickEvent::Mouse(MouseClickEvent {
7911 down: mouse_down,
7912 up: event.clone(),
7913 });
7914 Self::click(editor, &event, &position_map, window, cx);
7915 }
7916 }),
7917 }
7918 });
7919
7920 window.on_mouse_event({
7921 let position_map = layout.position_map.clone();
7922 let editor = self.editor.clone();
7923
7924 move |event: &MousePressureEvent, phase, window, cx| {
7925 if phase == DispatchPhase::Bubble {
7926 editor.update(cx, |editor, cx| {
7927 Self::pressure_click(editor, &event, &position_map, window, cx);
7928 })
7929 }
7930 }
7931 });
7932
7933 window.on_mouse_event({
7934 let position_map = layout.position_map.clone();
7935 let editor = self.editor.clone();
7936 let split_side = self.split_side;
7937
7938 move |event: &MouseMoveEvent, phase, window, cx| {
7939 if phase == DispatchPhase::Bubble {
7940 editor.update(cx, |editor, cx| {
7941 if editor.hover_state.focused(window, cx) {
7942 return;
7943 }
7944 if event.pressed_button == Some(MouseButton::Left)
7945 || event.pressed_button == Some(MouseButton::Middle)
7946 {
7947 Self::mouse_dragged(editor, event, &position_map, window, cx)
7948 }
7949
7950 Self::mouse_moved(editor, event, &position_map, split_side, window, cx)
7951 });
7952 }
7953 }
7954 });
7955 }
7956
7957 fn shape_line_number(
7958 &self,
7959 text: SharedString,
7960 color: Hsla,
7961 window: &mut Window,
7962 ) -> ShapedLine {
7963 let run = TextRun {
7964 len: text.len(),
7965 font: self.style.text.font(),
7966 color,
7967 ..Default::default()
7968 };
7969 window.text_system().shape_line(
7970 text,
7971 self.style.text.font_size.to_pixels(window.rem_size()),
7972 &[run],
7973 None,
7974 )
7975 }
7976
7977 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
7978 let unstaged = status.has_secondary_hunk();
7979 let unstaged_hollow = matches!(
7980 ProjectSettings::get_global(cx).git.hunk_style,
7981 GitHunkStyleSetting::UnstagedHollow
7982 );
7983
7984 unstaged == unstaged_hollow
7985 }
7986
7987 #[cfg(debug_assertions)]
7988 fn layout_debug_ranges(
7989 selections: &mut Vec<(PlayerColor, Vec<SelectionLayout>)>,
7990 anchor_range: Range<Anchor>,
7991 display_snapshot: &DisplaySnapshot,
7992 cx: &App,
7993 ) {
7994 let theme = cx.theme();
7995 text::debug::GlobalDebugRanges::with_locked(|debug_ranges| {
7996 if debug_ranges.ranges.is_empty() {
7997 return;
7998 }
7999 let buffer_snapshot = &display_snapshot.buffer_snapshot();
8000 for (excerpt_buffer_snapshot, buffer_range, _) in
8001 buffer_snapshot.range_to_buffer_ranges(anchor_range.start..anchor_range.end)
8002 {
8003 let buffer_range = excerpt_buffer_snapshot.anchor_after(buffer_range.start)
8004 ..excerpt_buffer_snapshot.anchor_before(buffer_range.end);
8005 selections.extend(debug_ranges.ranges.iter().flat_map(|debug_range| {
8006 debug_range.ranges.iter().filter_map(|range| {
8007 let player_color = theme
8008 .players()
8009 .color_for_participant(debug_range.occurrence_index as u32 + 1);
8010 if range.start.buffer_id != excerpt_buffer_snapshot.remote_id() {
8011 return None;
8012 }
8013 let clipped_start = range
8014 .start
8015 .max(&buffer_range.start, &excerpt_buffer_snapshot);
8016 let clipped_end =
8017 range.end.min(&buffer_range.end, &excerpt_buffer_snapshot);
8018 let range = buffer_snapshot
8019 .buffer_anchor_range_to_anchor_range(*clipped_start..*clipped_end)?;
8020 let start = range.start.to_display_point(display_snapshot);
8021 let end = range.end.to_display_point(display_snapshot);
8022 let selection_layout = SelectionLayout {
8023 head: start,
8024 range: start..end,
8025 cursor_shape: CursorShape::Bar,
8026 is_newest: false,
8027 is_local: false,
8028 active_rows: start.row()..end.row(),
8029 user_name: Some(SharedString::new(debug_range.value.clone())),
8030 };
8031 Some((player_color, vec![selection_layout]))
8032 })
8033 }));
8034 }
8035 });
8036 }
8037}
8038
8039struct Gutter<'a> {
8040 line_height: Pixels,
8041 range: Range<DisplayRow>,
8042 scroll_position: gpui::Point<ScrollOffset>,
8043 dimensions: &'a GutterDimensions,
8044 hitbox: &'a Hitbox,
8045 snapshot: &'a EditorSnapshot,
8046 row_infos: &'a [RowInfo],
8047}
8048
8049impl Gutter<'_> {
8050 fn layout_item_skipping_folds(
8051 &self,
8052 display_row: DisplayRow,
8053 render_item: impl Fn(&mut Context<'_, Editor>, &mut Window) -> AnyElement,
8054 window: &mut Window,
8055 cx: &mut Context<'_, Editor>,
8056 ) -> Option<AnyElement> {
8057 let row = MultiBufferRow(
8058 DisplayPoint::new(display_row, 0)
8059 .to_point(self.snapshot)
8060 .row,
8061 );
8062 if self.snapshot.is_line_folded(row) {
8063 return None;
8064 }
8065
8066 self.layout_item(display_row, render_item, window, cx)
8067 }
8068
8069 fn layout_item(
8070 &self,
8071 display_row: DisplayRow,
8072 render_item: impl Fn(&mut Context<'_, Editor>, &mut Window) -> AnyElement,
8073 window: &mut Window,
8074 cx: &mut Context<'_, Editor>,
8075 ) -> Option<AnyElement> {
8076 if !self.range.contains(&display_row) {
8077 return None;
8078 }
8079
8080 if self
8081 .row_infos
8082 .get((display_row.0.saturating_sub(self.range.start.0)) as usize)
8083 .is_some_and(|row_info| {
8084 row_info.expand_info.is_some()
8085 || row_info
8086 .diff_status
8087 .is_some_and(|status| status.is_deleted())
8088 })
8089 {
8090 return None;
8091 }
8092
8093 let button = self.prepaint_button(render_item(cx, window), display_row, window, cx);
8094 Some(button)
8095 }
8096
8097 fn prepaint_button(
8098 &self,
8099 mut button: AnyElement,
8100 row: DisplayRow,
8101 window: &mut Window,
8102 cx: &mut App,
8103 ) -> AnyElement {
8104 let available_space = size(
8105 AvailableSpace::MinContent,
8106 AvailableSpace::Definite(self.line_height),
8107 );
8108 let indicator_size = button.layout_as_root(available_space, window, cx);
8109 let git_gutter_width = EditorElement::gutter_strip_width(self.line_height)
8110 + self.dimensions.git_blame_entries_width.unwrap_or_default();
8111
8112 let x = git_gutter_width + px(2.);
8113
8114 let mut y = Pixels::from(
8115 (row.as_f64() - self.scroll_position.y) * ScrollPixelOffset::from(self.line_height),
8116 );
8117 y += (self.line_height - indicator_size.height) / 2.;
8118
8119 button.prepaint_as_root(
8120 self.hitbox.origin + point(x, y),
8121 available_space,
8122 window,
8123 cx,
8124 );
8125 button
8126 }
8127}
8128
8129pub fn render_breadcrumb_text(
8130 mut segments: Vec<HighlightedText>,
8131 breadcrumb_font: Option<Font>,
8132 prefix: Option<gpui::AnyElement>,
8133 active_item: &dyn ItemHandle,
8134 multibuffer_header: bool,
8135 window: &mut Window,
8136 cx: &App,
8137) -> gpui::AnyElement {
8138 const MAX_SEGMENTS: usize = 12;
8139
8140 let element = h_flex().flex_grow().text_ui(cx);
8141
8142 let prefix_end_ix = cmp::min(segments.len(), MAX_SEGMENTS / 2);
8143 let suffix_start_ix = cmp::max(
8144 prefix_end_ix,
8145 segments.len().saturating_sub(MAX_SEGMENTS / 2),
8146 );
8147
8148 if suffix_start_ix > prefix_end_ix {
8149 segments.splice(
8150 prefix_end_ix..suffix_start_ix,
8151 Some(HighlightedText {
8152 text: "β―".into(),
8153 highlights: vec![],
8154 }),
8155 );
8156 }
8157
8158 let highlighted_segments = segments.into_iter().enumerate().map(|(index, segment)| {
8159 let mut text_style = window.text_style();
8160 if let Some(font) = &breadcrumb_font {
8161 text_style.font_family = font.family.clone();
8162 text_style.font_features = font.features.clone();
8163 text_style.font_style = font.style;
8164 text_style.font_weight = font.weight;
8165 }
8166 text_style.color = Color::Muted.color(cx);
8167
8168 if index == 0
8169 && !workspace::TabBarSettings::get_global(cx).show
8170 && active_item.is_dirty(cx)
8171 && let Some(styled_element) = apply_dirty_filename_style(&segment, &text_style, cx)
8172 {
8173 return styled_element;
8174 }
8175
8176 StyledText::new(segment.text.replace('\n', " "))
8177 .with_default_highlights(&text_style, segment.highlights)
8178 .into_any()
8179 });
8180
8181 let breadcrumbs = Itertools::intersperse_with(highlighted_segments, || {
8182 Label::new("βΊ").color(Color::Placeholder).into_any_element()
8183 });
8184
8185 let breadcrumbs_stack = h_flex()
8186 .gap_1()
8187 .when(multibuffer_header, |this| {
8188 this.pl_2()
8189 .border_l_1()
8190 .border_color(cx.theme().colors().border.opacity(0.6))
8191 })
8192 .children(breadcrumbs);
8193
8194 let breadcrumbs = if let Some(prefix) = prefix {
8195 h_flex().gap_1p5().child(prefix).child(breadcrumbs_stack)
8196 } else {
8197 breadcrumbs_stack
8198 };
8199
8200 let editor = active_item
8201 .downcast::<Editor>()
8202 .map(|editor| editor.downgrade());
8203
8204 let has_project_path = active_item.project_path(cx).is_some();
8205
8206 match editor {
8207 Some(editor) => element
8208 .id("breadcrumb_container")
8209 .when(!multibuffer_header, |this| this.overflow_x_scroll())
8210 .child(
8211 ButtonLike::new("toggle outline view")
8212 .child(breadcrumbs)
8213 .when(multibuffer_header, |this| {
8214 this.style(ButtonStyle::Transparent)
8215 })
8216 .when(!multibuffer_header, |this| {
8217 let focus_handle = editor.upgrade().unwrap().focus_handle(&cx);
8218
8219 this.tooltip(Tooltip::element(move |_window, cx| {
8220 v_flex()
8221 .gap_1()
8222 .child(
8223 h_flex()
8224 .gap_1()
8225 .justify_between()
8226 .child(Label::new("Show Symbol Outline"))
8227 .child(ui::KeyBinding::for_action_in(
8228 &zed_actions::outline::ToggleOutline,
8229 &focus_handle,
8230 cx,
8231 )),
8232 )
8233 .when(has_project_path, |this| {
8234 this.child(
8235 h_flex()
8236 .gap_1()
8237 .justify_between()
8238 .pt_1()
8239 .border_t_1()
8240 .border_color(cx.theme().colors().border_variant)
8241 .child(Label::new("Right-Click to Copy Path")),
8242 )
8243 })
8244 .into_any_element()
8245 }))
8246 .on_click({
8247 let editor = editor.clone();
8248 move |_, window, cx| {
8249 if let Some((editor, callback)) = editor
8250 .upgrade()
8251 .zip(zed_actions::outline::TOGGLE_OUTLINE.get())
8252 {
8253 callback(editor.to_any_view(), window, cx);
8254 }
8255 }
8256 })
8257 .when(has_project_path, |this| {
8258 this.on_right_click({
8259 let editor = editor.clone();
8260 move |_, _, cx| {
8261 if let Some(abs_path) = editor.upgrade().and_then(|editor| {
8262 editor.update(cx, |editor, cx| {
8263 editor.target_file_abs_path(cx)
8264 })
8265 }) {
8266 if let Some(path_str) = abs_path.to_str() {
8267 cx.write_to_clipboard(ClipboardItem::new_string(
8268 path_str.to_string(),
8269 ));
8270 }
8271 }
8272 }
8273 })
8274 })
8275 }),
8276 )
8277 .into_any_element(),
8278 None => element
8279 .h(rems_from_px(22.)) // Match the height and padding of the `ButtonLike` in the other arm.
8280 .pl_1()
8281 .child(breadcrumbs)
8282 .into_any_element(),
8283 }
8284}
8285
8286fn apply_dirty_filename_style(
8287 segment: &HighlightedText,
8288 text_style: &gpui::TextStyle,
8289 cx: &App,
8290) -> Option<gpui::AnyElement> {
8291 let text = segment.text.replace('\n', " ");
8292
8293 let filename_position = std::path::Path::new(segment.text.as_ref())
8294 .file_name()
8295 .and_then(|f| {
8296 let filename_str = f.to_string_lossy();
8297 segment.text.rfind(filename_str.as_ref())
8298 })?;
8299
8300 let bold_weight = FontWeight::BOLD;
8301 let default_color = Color::Default.color(cx);
8302
8303 if filename_position == 0 {
8304 let mut filename_style = text_style.clone();
8305 filename_style.font_weight = bold_weight;
8306 filename_style.color = default_color;
8307
8308 return Some(
8309 StyledText::new(text)
8310 .with_default_highlights(&filename_style, [])
8311 .into_any(),
8312 );
8313 }
8314
8315 let highlight_style = gpui::HighlightStyle {
8316 font_weight: Some(bold_weight),
8317 color: Some(default_color),
8318 ..Default::default()
8319 };
8320
8321 let highlight = vec![(filename_position..text.len(), highlight_style)];
8322 Some(
8323 StyledText::new(text)
8324 .with_default_highlights(text_style, highlight)
8325 .into_any(),
8326 )
8327}
8328
8329fn file_status_label_color(file_status: Option<FileStatus>) -> Color {
8330 file_status.map_or(Color::Default, |status| {
8331 if status.is_conflicted() {
8332 Color::Conflict
8333 } else if status.is_modified() {
8334 Color::Modified
8335 } else if status.is_deleted() {
8336 Color::Disabled
8337 } else if status.is_created() {
8338 Color::Created
8339 } else {
8340 Color::Default
8341 }
8342 })
8343}
8344
8345pub(crate) fn header_jump_data(
8346 editor_snapshot: &EditorSnapshot,
8347 block_row_start: DisplayRow,
8348 height: u32,
8349 first_excerpt: &ExcerptBoundaryInfo,
8350 latest_selection_anchors: &HashMap<BufferId, Anchor>,
8351) -> JumpData {
8352 let multibuffer_snapshot = editor_snapshot.buffer_snapshot();
8353 let buffer = first_excerpt.buffer(multibuffer_snapshot);
8354 let (jump_anchor, jump_buffer) = if let Some(anchor) =
8355 latest_selection_anchors.get(&first_excerpt.buffer_id())
8356 && let Some((jump_anchor, selection_buffer)) =
8357 multibuffer_snapshot.anchor_to_buffer_anchor(*anchor)
8358 {
8359 (jump_anchor, selection_buffer)
8360 } else {
8361 (first_excerpt.range.primary.start, buffer)
8362 };
8363 let excerpt_start = first_excerpt.range.context.start;
8364 let jump_position = language::ToPoint::to_point(&jump_anchor, jump_buffer);
8365 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
8366 0
8367 } else {
8368 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
8369 jump_position.row.saturating_sub(excerpt_start_point.row)
8370 };
8371
8372 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
8373 .saturating_sub(
8374 editor_snapshot
8375 .scroll_anchor
8376 .scroll_position(&editor_snapshot.display_snapshot)
8377 .y as u32,
8378 );
8379
8380 JumpData::MultiBufferPoint {
8381 anchor: jump_anchor,
8382 position: jump_position,
8383 line_offset_from_top,
8384 }
8385}
8386
8387pub(crate) fn render_buffer_header(
8388 editor: &Entity<Editor>,
8389 for_excerpt: &ExcerptBoundaryInfo,
8390 is_folded: bool,
8391 is_selected: bool,
8392 is_sticky: bool,
8393 jump_data: JumpData,
8394 window: &mut Window,
8395 cx: &mut App,
8396) -> impl IntoElement {
8397 let editor_read = editor.read(cx);
8398 let multi_buffer = editor_read.buffer.read(cx);
8399 let is_read_only = editor_read.read_only(cx);
8400 let editor_handle: &dyn ItemHandle = editor;
8401 let multibuffer_snapshot = multi_buffer.snapshot(cx);
8402 let buffer = for_excerpt.buffer(&multibuffer_snapshot);
8403
8404 let breadcrumbs = if is_selected {
8405 editor_read.breadcrumbs_inner(cx)
8406 } else {
8407 None
8408 };
8409
8410 let buffer_id = for_excerpt.buffer_id();
8411 let file_status = multi_buffer
8412 .all_diff_hunks_expanded()
8413 .then(|| editor_read.status_for_buffer_id(buffer_id, cx))
8414 .flatten();
8415 let indicator = multi_buffer.buffer(buffer_id).and_then(|buffer| {
8416 let buffer = buffer.read(cx);
8417 let indicator_color = match (buffer.has_conflict(), buffer.is_dirty()) {
8418 (true, _) => Some(Color::Warning),
8419 (_, true) => Some(Color::Accent),
8420 (false, false) => None,
8421 };
8422 indicator_color.map(|indicator_color| Indicator::dot().color(indicator_color))
8423 });
8424
8425 let include_root = editor_read
8426 .project
8427 .as_ref()
8428 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
8429 .unwrap_or_default();
8430 let file = buffer.file();
8431 let can_open_excerpts = file.is_none_or(|file| file.can_open());
8432 let path_style = file.map(|file| file.path_style(cx));
8433 let relative_path = buffer.resolve_file_path(include_root, cx);
8434 let (parent_path, filename) = if let Some(path) = &relative_path {
8435 if let Some(path_style) = path_style {
8436 let (dir, file_name) = path_style.split(path);
8437 (dir.map(|dir| dir.to_owned()), Some(file_name.to_owned()))
8438 } else {
8439 (None, Some(path.clone()))
8440 }
8441 } else {
8442 (None, None)
8443 };
8444 let focus_handle = editor_read.focus_handle(cx);
8445 let colors = cx.theme().colors();
8446
8447 let header = div()
8448 .id(("buffer-header", buffer_id.to_proto()))
8449 .p(BUFFER_HEADER_PADDING)
8450 .w_full()
8451 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
8452 .child(
8453 h_flex()
8454 .group("buffer-header-group")
8455 .size_full()
8456 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
8457 .pl_1()
8458 .pr_2()
8459 .rounded_sm()
8460 .gap_1p5()
8461 .when(is_sticky, |el| el.shadow_md())
8462 .border_1()
8463 .map(|border| {
8464 let border_color =
8465 if is_selected && is_folded && focus_handle.contains_focused(window, cx) {
8466 colors.border_focused
8467 } else {
8468 colors.border
8469 };
8470 border.border_color(border_color)
8471 })
8472 .bg(colors.editor_subheader_background)
8473 .hover(|style| style.bg(colors.element_hover))
8474 .map(|header| {
8475 let editor = editor.clone();
8476 let buffer_id = for_excerpt.buffer_id();
8477 let toggle_chevron_icon =
8478 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
8479 let button_size = rems_from_px(28.);
8480
8481 header.child(
8482 div()
8483 .hover(|style| style.bg(colors.element_selected))
8484 .rounded_xs()
8485 .child(
8486 ButtonLike::new("toggle-buffer-fold")
8487 .style(ButtonStyle::Transparent)
8488 .height(button_size.into())
8489 .width(button_size)
8490 .children(toggle_chevron_icon)
8491 .tooltip({
8492 let focus_handle = focus_handle.clone();
8493 let is_folded_for_tooltip = is_folded;
8494 move |_window, cx| {
8495 Tooltip::with_meta_in(
8496 if is_folded_for_tooltip {
8497 "Unfold Excerpt"
8498 } else {
8499 "Fold Excerpt"
8500 },
8501 Some(&ToggleFold),
8502 format!(
8503 "{} to toggle all",
8504 text_for_keystroke(
8505 &Modifiers::alt(),
8506 "click",
8507 cx
8508 )
8509 ),
8510 &focus_handle,
8511 cx,
8512 )
8513 }
8514 })
8515 .on_click(move |event, window, cx| {
8516 if event.modifiers().alt {
8517 editor.update(cx, |editor, cx| {
8518 editor.toggle_fold_all(&ToggleFoldAll, window, cx);
8519 });
8520 } else {
8521 if is_folded {
8522 editor.update(cx, |editor, cx| {
8523 editor.unfold_buffer(buffer_id, cx);
8524 });
8525 } else {
8526 editor.update(cx, |editor, cx| {
8527 editor.fold_buffer(buffer_id, cx);
8528 });
8529 }
8530 }
8531 }),
8532 ),
8533 )
8534 })
8535 .children(
8536 editor_read
8537 .addons
8538 .values()
8539 .filter_map(|addon| {
8540 addon.render_buffer_header_controls(for_excerpt, buffer, window, cx)
8541 })
8542 .take(1),
8543 )
8544 .when(!is_read_only, |this| {
8545 this.child(
8546 h_flex()
8547 .size_3()
8548 .justify_center()
8549 .flex_shrink_0()
8550 .children(indicator),
8551 )
8552 })
8553 .child(
8554 h_flex()
8555 .cursor_pointer()
8556 .id("path_header_block")
8557 .min_w_0()
8558 .size_full()
8559 .gap_1()
8560 .justify_between()
8561 .overflow_hidden()
8562 .child(h_flex().min_w_0().flex_1().gap_0p5().overflow_hidden().map(
8563 |path_header| {
8564 let filename = filename
8565 .map(SharedString::from)
8566 .unwrap_or_else(|| "untitled".into());
8567
8568 let full_path = match parent_path.as_deref() {
8569 Some(parent) if !parent.is_empty() => {
8570 format!("{}{}", parent, filename.as_str())
8571 }
8572 _ => filename.as_str().to_string(),
8573 };
8574
8575 path_header
8576 .child(
8577 ButtonLike::new("filename-button")
8578 .when(ItemSettings::get_global(cx).file_icons, |this| {
8579 let path = path::Path::new(filename.as_str());
8580 let icon = FileIcons::get_icon(path, cx)
8581 .unwrap_or_default();
8582
8583 this.child(
8584 Icon::from_path(icon).color(Color::Muted),
8585 )
8586 })
8587 .child(
8588 Label::new(filename)
8589 .single_line()
8590 .color(file_status_label_color(file_status))
8591 .buffer_font(cx)
8592 .when(
8593 file_status.is_some_and(|s| s.is_deleted()),
8594 |label| label.strikethrough(),
8595 ),
8596 )
8597 .tooltip(move |_, cx| {
8598 Tooltip::with_meta(
8599 "Open File",
8600 None,
8601 full_path.clone(),
8602 cx,
8603 )
8604 })
8605 .on_click(window.listener_for(editor, {
8606 let jump_data = jump_data.clone();
8607 move |editor, e: &ClickEvent, window, cx| {
8608 editor.open_excerpts_common(
8609 Some(jump_data.clone()),
8610 e.modifiers().secondary(),
8611 window,
8612 cx,
8613 );
8614 }
8615 })),
8616 )
8617 .when_some(parent_path, |then, path| {
8618 then.child(
8619 Label::new(path)
8620 .buffer_font(cx)
8621 .truncate_start()
8622 .color(
8623 if file_status
8624 .is_some_and(FileStatus::is_deleted)
8625 {
8626 Color::Custom(colors.text_disabled)
8627 } else {
8628 Color::Custom(colors.text_muted)
8629 },
8630 ),
8631 )
8632 })
8633 .when(!buffer.capability.editable(), |el| {
8634 el.child(Icon::new(IconName::FileLock).color(Color::Muted))
8635 })
8636 .when_some(breadcrumbs, |then, breadcrumbs| {
8637 let font = theme_settings::ThemeSettings::get_global(cx)
8638 .buffer_font
8639 .clone();
8640 then.child(render_breadcrumb_text(
8641 breadcrumbs,
8642 Some(font),
8643 None,
8644 editor_handle,
8645 true,
8646 window,
8647 cx,
8648 ))
8649 })
8650 },
8651 ))
8652 .when(can_open_excerpts && relative_path.is_some(), |this| {
8653 this.child(
8654 div()
8655 .when(!is_selected, |this| {
8656 this.visible_on_hover("buffer-header-group")
8657 })
8658 .child(
8659 Button::new("open-file-button", "Open File")
8660 .style(ButtonStyle::OutlinedGhost)
8661 .when(is_selected, |this| {
8662 this.key_binding(KeyBinding::for_action_in(
8663 &OpenExcerpts,
8664 &focus_handle,
8665 cx,
8666 ))
8667 })
8668 .on_click(window.listener_for(editor, {
8669 let jump_data = jump_data.clone();
8670 move |editor, e: &ClickEvent, window, cx| {
8671 editor.open_excerpts_common(
8672 Some(jump_data.clone()),
8673 e.modifiers().secondary(),
8674 window,
8675 cx,
8676 );
8677 }
8678 })),
8679 ),
8680 )
8681 })
8682 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
8683 .on_click(window.listener_for(editor, {
8684 let buffer_id = for_excerpt.buffer_id();
8685 move |editor, e: &ClickEvent, window, cx| {
8686 if e.modifiers().alt {
8687 editor.open_excerpts_common(
8688 Some(jump_data.clone()),
8689 e.modifiers().secondary(),
8690 window,
8691 cx,
8692 );
8693 return;
8694 }
8695
8696 if is_folded {
8697 editor.unfold_buffer(buffer_id, cx);
8698 } else {
8699 editor.fold_buffer(buffer_id, cx);
8700 }
8701 }
8702 })),
8703 ),
8704 );
8705
8706 let file = buffer.file().cloned();
8707 let editor = editor.clone();
8708
8709 right_click_menu("buffer-header-context-menu")
8710 .trigger(move |_, _, _| header)
8711 .menu(move |window, cx| {
8712 let menu_context = focus_handle.clone();
8713 let editor = editor.clone();
8714 let file = file.clone();
8715 ContextMenu::build(window, cx, move |mut menu, window, cx| {
8716 if let Some(file) = file
8717 && let Some(project) = editor.read(cx).project()
8718 && let Some(worktree) =
8719 project.read(cx).worktree_for_id(file.worktree_id(cx), cx)
8720 {
8721 let path_style = file.path_style(cx);
8722 let worktree = worktree.read(cx);
8723 let relative_path = file.path();
8724 let entry_for_path = worktree.entry_for_path(relative_path);
8725 let abs_path = entry_for_path.map(|e| {
8726 e.canonical_path
8727 .as_deref()
8728 .map_or_else(|| worktree.absolutize(relative_path), Path::to_path_buf)
8729 });
8730 let has_relative_path = worktree.root_entry().is_some_and(Entry::is_dir);
8731
8732 let parent_abs_path = abs_path
8733 .as_ref()
8734 .and_then(|abs_path| Some(abs_path.parent()?.to_path_buf()));
8735 let relative_path = has_relative_path
8736 .then_some(relative_path)
8737 .map(ToOwned::to_owned);
8738
8739 let visible_in_project_panel = relative_path.is_some() && worktree.is_visible();
8740 let reveal_in_project_panel = entry_for_path
8741 .filter(|_| visible_in_project_panel)
8742 .map(|entry| entry.id);
8743 menu = menu
8744 .when_some(abs_path, |menu, abs_path| {
8745 menu.entry(
8746 "Copy Path",
8747 Some(Box::new(zed_actions::workspace::CopyPath)),
8748 window.handler_for(&editor, move |_, _, cx| {
8749 cx.write_to_clipboard(ClipboardItem::new_string(
8750 abs_path.to_string_lossy().into_owned(),
8751 ));
8752 }),
8753 )
8754 })
8755 .when_some(relative_path, |menu, relative_path| {
8756 menu.entry(
8757 "Copy Relative Path",
8758 Some(Box::new(zed_actions::workspace::CopyRelativePath)),
8759 window.handler_for(&editor, move |_, _, cx| {
8760 cx.write_to_clipboard(ClipboardItem::new_string(
8761 relative_path.display(path_style).to_string(),
8762 ));
8763 }),
8764 )
8765 })
8766 .when(
8767 reveal_in_project_panel.is_some() || parent_abs_path.is_some(),
8768 |menu| menu.separator(),
8769 )
8770 .when_some(reveal_in_project_panel, |menu, entry_id| {
8771 menu.entry(
8772 "Reveal In Project Panel",
8773 Some(Box::new(RevealInProjectPanel::default())),
8774 window.handler_for(&editor, move |editor, _, cx| {
8775 if let Some(project) = &mut editor.project {
8776 project.update(cx, |_, cx| {
8777 cx.emit(project::Event::RevealInProjectPanel(entry_id))
8778 });
8779 }
8780 }),
8781 )
8782 })
8783 .when_some(parent_abs_path, |menu, parent_abs_path| {
8784 menu.entry(
8785 "Open in Terminal",
8786 Some(Box::new(OpenInTerminal)),
8787 window.handler_for(&editor, move |_, window, cx| {
8788 window.dispatch_action(
8789 OpenTerminal {
8790 working_directory: parent_abs_path.clone(),
8791 local: false,
8792 }
8793 .boxed_clone(),
8794 cx,
8795 );
8796 }),
8797 )
8798 });
8799 }
8800
8801 menu.context(menu_context)
8802 })
8803 })
8804}
8805
8806fn render_inline_blame_entry(
8807 blame_entry: BlameEntry,
8808 style: &EditorStyle,
8809 cx: &mut App,
8810) -> Option<AnyElement> {
8811 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
8812 renderer.render_inline_blame_entry(&style.text, blame_entry, cx)
8813}
8814
8815fn render_blame_entry_popover(
8816 blame_entry: BlameEntry,
8817 scroll_handle: ScrollHandle,
8818 commit_message: Option<ParsedCommitMessage>,
8819 markdown: Entity<Markdown>,
8820 workspace: WeakEntity<Workspace>,
8821 blame: &Entity<GitBlame>,
8822 buffer: BufferId,
8823 window: &mut Window,
8824 cx: &mut App,
8825) -> Option<AnyElement> {
8826 if markdown.read(cx).is_parsing() {
8827 return None;
8828 }
8829
8830 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
8831 let blame = blame.read(cx);
8832 let repository = blame.repository(cx, buffer)?;
8833 renderer.render_blame_entry_popover(
8834 blame_entry,
8835 scroll_handle,
8836 commit_message,
8837 markdown,
8838 repository,
8839 workspace,
8840 window,
8841 cx,
8842 )
8843}
8844
8845fn render_blame_entry(
8846 ix: usize,
8847 blame: &Entity<GitBlame>,
8848 blame_entry: BlameEntry,
8849 style: &EditorStyle,
8850 last_used_color: &mut Option<(Hsla, Oid)>,
8851 editor: Entity<Editor>,
8852 workspace: Entity<Workspace>,
8853 buffer: BufferId,
8854 renderer: &dyn BlameRenderer,
8855 window: &mut Window,
8856 cx: &mut App,
8857) -> Option<AnyElement> {
8858 let index: u32 = blame_entry.sha.into();
8859 let mut sha_color = cx.theme().players().color_for_participant(index).cursor;
8860
8861 // If the last color we used is the same as the one we get for this line, but
8862 // the commit SHAs are different, then we try again to get a different color.
8863 if let Some((color, sha)) = *last_used_color
8864 && sha != blame_entry.sha
8865 && color == sha_color
8866 {
8867 sha_color = cx.theme().players().color_for_participant(index + 1).cursor;
8868 }
8869 last_used_color.replace((sha_color, blame_entry.sha));
8870
8871 let blame = blame.read(cx);
8872 let details = blame.details_for_entry(buffer, &blame_entry);
8873 let repository = blame.repository(cx, buffer)?;
8874 renderer.render_blame_entry(
8875 &style.text,
8876 blame_entry,
8877 details,
8878 repository,
8879 workspace.downgrade(),
8880 editor,
8881 ix,
8882 sha_color,
8883 window,
8884 cx,
8885 )
8886}
8887
8888#[derive(Debug)]
8889pub(crate) struct LineWithInvisibles {
8890 fragments: SmallVec<[LineFragment; 1]>,
8891 invisibles: Vec<Invisible>,
8892 len: usize,
8893 pub(crate) width: Pixels,
8894 font_size: Pixels,
8895}
8896
8897enum LineFragment {
8898 Text(ShapedLine),
8899 Element {
8900 id: ChunkRendererId,
8901 element: Option<AnyElement>,
8902 size: Size<Pixels>,
8903 len: usize,
8904 },
8905}
8906
8907impl fmt::Debug for LineFragment {
8908 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
8909 match self {
8910 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
8911 LineFragment::Element { size, len, .. } => f
8912 .debug_struct("Element")
8913 .field("size", size)
8914 .field("len", len)
8915 .finish(),
8916 }
8917 }
8918}
8919
8920impl LineWithInvisibles {
8921 fn from_chunks<'a>(
8922 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
8923 editor_style: &EditorStyle,
8924 max_line_len: usize,
8925 max_line_count: usize,
8926 editor_mode: &EditorMode,
8927 text_width: Pixels,
8928 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8929 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
8930 window: &mut Window,
8931 cx: &mut App,
8932 ) -> Vec<Self> {
8933 let text_style = &editor_style.text;
8934 let mut layouts = Vec::with_capacity(max_line_count);
8935 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
8936 let mut line = String::new();
8937 let mut invisibles = Vec::new();
8938 let mut width = Pixels::ZERO;
8939 let mut len = 0;
8940 let mut styles = Vec::new();
8941 let mut non_whitespace_added = false;
8942 let mut row = 0;
8943 let mut line_exceeded_max_len = false;
8944 let font_size = text_style.font_size.to_pixels(window.rem_size());
8945 let min_contrast = EditorSettings::get_global(cx).minimum_contrast_for_highlights;
8946
8947 let ellipsis = SharedString::from("β―");
8948
8949 for highlighted_chunk in chunks.chain([HighlightedChunk {
8950 text: "\n",
8951 style: None,
8952 is_tab: false,
8953 is_inlay: false,
8954 replacement: None,
8955 }]) {
8956 if let Some(replacement) = highlighted_chunk.replacement {
8957 if !line.is_empty() {
8958 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8959 let text_runs: &[TextRun] = if segments.is_empty() {
8960 &styles
8961 } else {
8962 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8963 };
8964 let shaped_line = window.text_system().shape_line(
8965 line.clone().into(),
8966 font_size,
8967 text_runs,
8968 None,
8969 );
8970 width += shaped_line.width;
8971 len += shaped_line.len;
8972 fragments.push(LineFragment::Text(shaped_line));
8973 line.clear();
8974 styles.clear();
8975 }
8976
8977 match replacement {
8978 ChunkReplacement::Renderer(renderer) => {
8979 let available_width = if renderer.constrain_width {
8980 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
8981 ellipsis.clone()
8982 } else {
8983 SharedString::from(Arc::from(highlighted_chunk.text))
8984 };
8985 let shaped_line = window.text_system().shape_line(
8986 chunk,
8987 font_size,
8988 &[text_style.to_run(highlighted_chunk.text.len())],
8989 None,
8990 );
8991 AvailableSpace::Definite(shaped_line.width)
8992 } else {
8993 AvailableSpace::MinContent
8994 };
8995
8996 let mut element = (renderer.render)(&mut ChunkRendererContext {
8997 context: cx,
8998 window,
8999 max_width: text_width,
9000 });
9001 let line_height = text_style.line_height_in_pixels(window.rem_size());
9002 let size = element.layout_as_root(
9003 size(available_width, AvailableSpace::Definite(line_height)),
9004 window,
9005 cx,
9006 );
9007
9008 width += size.width;
9009 len += highlighted_chunk.text.len();
9010 fragments.push(LineFragment::Element {
9011 id: renderer.id,
9012 element: Some(element),
9013 size,
9014 len: highlighted_chunk.text.len(),
9015 });
9016 }
9017 ChunkReplacement::Str(x) => {
9018 let text_style = if let Some(style) = highlighted_chunk.style {
9019 Cow::Owned(text_style.clone().highlight(style))
9020 } else {
9021 Cow::Borrowed(text_style)
9022 };
9023
9024 let run = TextRun {
9025 len: x.len(),
9026 font: text_style.font(),
9027 color: text_style.color,
9028 background_color: text_style.background_color,
9029 underline: text_style.underline,
9030 strikethrough: text_style.strikethrough,
9031 };
9032 let line_layout = window
9033 .text_system()
9034 .shape_line(x, font_size, &[run], None)
9035 .with_len(highlighted_chunk.text.len());
9036
9037 width += line_layout.width;
9038 len += highlighted_chunk.text.len();
9039 fragments.push(LineFragment::Text(line_layout))
9040 }
9041 }
9042 } else {
9043 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
9044 if ix > 0 {
9045 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
9046 let text_runs = if segments.is_empty() {
9047 &styles
9048 } else {
9049 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
9050 };
9051 let shaped_line = window.text_system().shape_line(
9052 line.clone().into(),
9053 font_size,
9054 text_runs,
9055 None,
9056 );
9057 width += shaped_line.width;
9058 len += shaped_line.len;
9059 fragments.push(LineFragment::Text(shaped_line));
9060 layouts.push(Self {
9061 width: mem::take(&mut width),
9062 len: mem::take(&mut len),
9063 fragments: mem::take(&mut fragments),
9064 invisibles: std::mem::take(&mut invisibles),
9065 font_size,
9066 });
9067
9068 line.clear();
9069 styles.clear();
9070 row += 1;
9071 line_exceeded_max_len = false;
9072 non_whitespace_added = false;
9073 if row == max_line_count {
9074 return layouts;
9075 }
9076 }
9077
9078 if !line_chunk.is_empty() && !line_exceeded_max_len {
9079 let text_style = if let Some(style) = highlighted_chunk.style {
9080 Cow::Owned(text_style.clone().highlight(style))
9081 } else {
9082 Cow::Borrowed(text_style)
9083 };
9084
9085 if line.len() + line_chunk.len() > max_line_len {
9086 let mut chunk_len = max_line_len - line.len();
9087 while !line_chunk.is_char_boundary(chunk_len) {
9088 chunk_len -= 1;
9089 }
9090 line_chunk = &line_chunk[..chunk_len];
9091 line_exceeded_max_len = true;
9092 }
9093
9094 styles.push(TextRun {
9095 len: line_chunk.len(),
9096 font: text_style.font(),
9097 color: text_style.color,
9098 background_color: text_style.background_color,
9099 underline: text_style.underline,
9100 strikethrough: text_style.strikethrough,
9101 });
9102
9103 if editor_mode.is_full() && !highlighted_chunk.is_inlay {
9104 // Line wrap pads its contents with fake whitespaces,
9105 // avoid printing them
9106 let is_soft_wrapped = is_row_soft_wrapped(row);
9107 if highlighted_chunk.is_tab {
9108 if non_whitespace_added || !is_soft_wrapped {
9109 invisibles.push(Invisible::Tab {
9110 line_start_offset: line.len(),
9111 line_end_offset: line.len() + line_chunk.len(),
9112 });
9113 }
9114 } else {
9115 invisibles.extend(line_chunk.char_indices().filter_map(
9116 |(index, c)| {
9117 let is_whitespace = c.is_whitespace();
9118 non_whitespace_added |= !is_whitespace;
9119 if is_whitespace
9120 && (non_whitespace_added || !is_soft_wrapped)
9121 {
9122 Some(Invisible::Whitespace {
9123 line_offset: line.len() + index,
9124 })
9125 } else {
9126 None
9127 }
9128 },
9129 ))
9130 }
9131 }
9132
9133 line.push_str(line_chunk);
9134 }
9135 }
9136 }
9137 }
9138
9139 layouts
9140 }
9141
9142 /// Takes text runs and non-overlapping left-to-right background ranges with color.
9143 /// Returns new text runs with adjusted contrast as per background ranges.
9144 fn split_runs_by_bg_segments(
9145 text_runs: &[TextRun],
9146 bg_segments: &[(Range<DisplayPoint>, Hsla)],
9147 min_contrast: f32,
9148 start_col_offset: usize,
9149 ) -> Vec<TextRun> {
9150 let mut output_runs: Vec<TextRun> = Vec::with_capacity(text_runs.len());
9151 let mut line_col = start_col_offset;
9152 let mut segment_ix = 0usize;
9153
9154 for text_run in text_runs.iter() {
9155 let run_start_col = line_col;
9156 let run_end_col = run_start_col + text_run.len;
9157 while segment_ix < bg_segments.len()
9158 && (bg_segments[segment_ix].0.end.column() as usize) <= run_start_col
9159 {
9160 segment_ix += 1;
9161 }
9162 let mut cursor_col = run_start_col;
9163 let mut local_segment_ix = segment_ix;
9164 while local_segment_ix < bg_segments.len() {
9165 let (range, segment_color) = &bg_segments[local_segment_ix];
9166 let segment_start_col = range.start.column() as usize;
9167 let segment_end_col = range.end.column() as usize;
9168 if segment_start_col >= run_end_col {
9169 break;
9170 }
9171 if segment_start_col > cursor_col {
9172 let span_len = segment_start_col - cursor_col;
9173 output_runs.push(TextRun {
9174 len: span_len,
9175 font: text_run.font.clone(),
9176 color: text_run.color,
9177 background_color: text_run.background_color,
9178 underline: text_run.underline,
9179 strikethrough: text_run.strikethrough,
9180 });
9181 cursor_col = segment_start_col;
9182 }
9183 let segment_slice_end_col = segment_end_col.min(run_end_col);
9184 if segment_slice_end_col > cursor_col {
9185 let new_text_color =
9186 ensure_minimum_contrast(text_run.color, *segment_color, min_contrast);
9187 output_runs.push(TextRun {
9188 len: segment_slice_end_col - cursor_col,
9189 font: text_run.font.clone(),
9190 color: new_text_color,
9191 background_color: text_run.background_color,
9192 underline: text_run.underline,
9193 strikethrough: text_run.strikethrough,
9194 });
9195 cursor_col = segment_slice_end_col;
9196 }
9197 if segment_end_col >= run_end_col {
9198 break;
9199 }
9200 local_segment_ix += 1;
9201 }
9202 if cursor_col < run_end_col {
9203 output_runs.push(TextRun {
9204 len: run_end_col - cursor_col,
9205 font: text_run.font.clone(),
9206 color: text_run.color,
9207 background_color: text_run.background_color,
9208 underline: text_run.underline,
9209 strikethrough: text_run.strikethrough,
9210 });
9211 }
9212 line_col = run_end_col;
9213 segment_ix = local_segment_ix;
9214 }
9215 output_runs
9216 }
9217
9218 fn prepaint(
9219 &mut self,
9220 line_height: Pixels,
9221 scroll_position: gpui::Point<ScrollOffset>,
9222 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
9223 row: DisplayRow,
9224 content_origin: gpui::Point<Pixels>,
9225 line_elements: &mut SmallVec<[AnyElement; 1]>,
9226 window: &mut Window,
9227 cx: &mut App,
9228 ) {
9229 let line_y = f32::from(line_height) * Pixels::from(row.as_f64() - scroll_position.y);
9230 self.prepaint_with_custom_offset(
9231 line_height,
9232 scroll_pixel_position,
9233 content_origin,
9234 line_y,
9235 line_elements,
9236 window,
9237 cx,
9238 );
9239 }
9240
9241 fn prepaint_with_custom_offset(
9242 &mut self,
9243 line_height: Pixels,
9244 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
9245 content_origin: gpui::Point<Pixels>,
9246 line_y: Pixels,
9247 line_elements: &mut SmallVec<[AnyElement; 1]>,
9248 window: &mut Window,
9249 cx: &mut App,
9250 ) {
9251 let mut fragment_origin =
9252 content_origin + gpui::point(Pixels::from(-scroll_pixel_position.x), line_y);
9253 for fragment in &mut self.fragments {
9254 match fragment {
9255 LineFragment::Text(line) => {
9256 fragment_origin.x += line.width;
9257 }
9258 LineFragment::Element { element, size, .. } => {
9259 let mut element = element
9260 .take()
9261 .expect("you can't prepaint LineWithInvisibles twice");
9262
9263 // Center the element vertically within the line.
9264 let mut element_origin = fragment_origin;
9265 element_origin.y += (line_height - size.height) / 2.;
9266 element.prepaint_at(element_origin, window, cx);
9267 line_elements.push(element);
9268
9269 fragment_origin.x += size.width;
9270 }
9271 }
9272 }
9273 }
9274
9275 fn draw(
9276 &self,
9277 layout: &EditorLayout,
9278 row: DisplayRow,
9279 content_origin: gpui::Point<Pixels>,
9280 whitespace_setting: ShowWhitespaceSetting,
9281 selection_ranges: &[Range<DisplayPoint>],
9282 window: &mut Window,
9283 cx: &mut App,
9284 ) {
9285 self.draw_with_custom_offset(
9286 layout,
9287 row,
9288 content_origin,
9289 layout.position_map.line_height
9290 * (row.as_f64() - layout.position_map.scroll_position.y) as f32,
9291 whitespace_setting,
9292 selection_ranges,
9293 window,
9294 cx,
9295 );
9296 }
9297
9298 fn draw_with_custom_offset(
9299 &self,
9300 layout: &EditorLayout,
9301 row: DisplayRow,
9302 content_origin: gpui::Point<Pixels>,
9303 line_y: Pixels,
9304 whitespace_setting: ShowWhitespaceSetting,
9305 selection_ranges: &[Range<DisplayPoint>],
9306 window: &mut Window,
9307 cx: &mut App,
9308 ) {
9309 let line_height = layout.position_map.line_height;
9310 let mut fragment_origin = content_origin
9311 + gpui::point(
9312 Pixels::from(-layout.position_map.scroll_pixel_position.x),
9313 line_y,
9314 );
9315
9316 for fragment in &self.fragments {
9317 match fragment {
9318 LineFragment::Text(line) => {
9319 line.paint(
9320 fragment_origin,
9321 line_height,
9322 layout.text_align,
9323 Some(layout.content_width),
9324 window,
9325 cx,
9326 )
9327 .log_err();
9328 fragment_origin.x += line.width;
9329 }
9330 LineFragment::Element { size, .. } => {
9331 fragment_origin.x += size.width;
9332 }
9333 }
9334 }
9335
9336 self.draw_invisibles(
9337 selection_ranges,
9338 layout,
9339 content_origin,
9340 line_y,
9341 row,
9342 line_height,
9343 whitespace_setting,
9344 window,
9345 cx,
9346 );
9347 }
9348
9349 fn draw_background(
9350 &self,
9351 layout: &EditorLayout,
9352 row: DisplayRow,
9353 content_origin: gpui::Point<Pixels>,
9354 window: &mut Window,
9355 cx: &mut App,
9356 ) {
9357 let line_height = layout.position_map.line_height;
9358 let line_y = line_height * (row.as_f64() - layout.position_map.scroll_position.y) as f32;
9359
9360 let mut fragment_origin = content_origin
9361 + gpui::point(
9362 Pixels::from(-layout.position_map.scroll_pixel_position.x),
9363 line_y,
9364 );
9365
9366 for fragment in &self.fragments {
9367 match fragment {
9368 LineFragment::Text(line) => {
9369 line.paint_background(
9370 fragment_origin,
9371 line_height,
9372 layout.text_align,
9373 Some(layout.content_width),
9374 window,
9375 cx,
9376 )
9377 .log_err();
9378 fragment_origin.x += line.width;
9379 }
9380 LineFragment::Element { size, .. } => {
9381 fragment_origin.x += size.width;
9382 }
9383 }
9384 }
9385 }
9386
9387 fn draw_invisibles(
9388 &self,
9389 selection_ranges: &[Range<DisplayPoint>],
9390 layout: &EditorLayout,
9391 content_origin: gpui::Point<Pixels>,
9392 line_y: Pixels,
9393 row: DisplayRow,
9394 line_height: Pixels,
9395 whitespace_setting: ShowWhitespaceSetting,
9396 window: &mut Window,
9397 cx: &mut App,
9398 ) {
9399 let extract_whitespace_info = |invisible: &Invisible| {
9400 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
9401 Invisible::Tab {
9402 line_start_offset,
9403 line_end_offset,
9404 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
9405 Invisible::Whitespace { line_offset } => {
9406 (*line_offset, line_offset + 1, &layout.space_invisible)
9407 }
9408 };
9409
9410 let x_offset: ScrollPixelOffset = self.x_for_index(token_offset).into();
9411 let invisible_offset: ScrollPixelOffset =
9412 ((layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0)
9413 .into();
9414 let origin = content_origin
9415 + gpui::point(
9416 Pixels::from(
9417 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
9418 ),
9419 line_y,
9420 );
9421
9422 (
9423 [token_offset, token_end_offset],
9424 Box::new(move |window: &mut Window, cx: &mut App| {
9425 invisible_symbol
9426 .paint(origin, line_height, TextAlign::Left, None, window, cx)
9427 .log_err();
9428 }),
9429 )
9430 };
9431
9432 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
9433 match whitespace_setting {
9434 ShowWhitespaceSetting::None => (),
9435 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
9436 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
9437 let invisible_point = DisplayPoint::new(row, start as u32);
9438 if !selection_ranges
9439 .iter()
9440 .any(|region| region.start <= invisible_point && invisible_point < region.end)
9441 {
9442 return;
9443 }
9444
9445 paint(window, cx);
9446 }),
9447
9448 ShowWhitespaceSetting::Trailing => {
9449 let mut previous_start = self.len;
9450 for ([start, end], paint) in invisible_iter.rev() {
9451 if previous_start != end {
9452 break;
9453 }
9454 previous_start = start;
9455 paint(window, cx);
9456 }
9457 }
9458
9459 // For a whitespace to be on a boundary, any of the following conditions need to be met:
9460 // - It is a tab
9461 // - It is adjacent to an edge (start or end)
9462 // - It is adjacent to a whitespace (left or right)
9463 ShowWhitespaceSetting::Boundary => {
9464 // We'll need to keep track of the last invisible we've seen and then check if we are adjacent to it for some of
9465 // the above cases.
9466 // Note: We zip in the original `invisibles` to check for tab equality
9467 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
9468 for (([start, end], paint), invisible) in
9469 invisible_iter.zip_eq(self.invisibles.iter())
9470 {
9471 let should_render = match (&last_seen, invisible) {
9472 (_, Invisible::Tab { .. }) => true,
9473 (Some((_, last_end, _)), _) => *last_end == start,
9474 _ => false,
9475 };
9476
9477 if should_render || start == 0 || end == self.len {
9478 paint(window, cx);
9479
9480 // Since we are scanning from the left, we will skip over the first available whitespace that is part
9481 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
9482 if let Some((should_render_last, last_end, paint_last)) = last_seen {
9483 // Note that we need to make sure that the last one is actually adjacent
9484 if !should_render_last && last_end == start {
9485 paint_last(window, cx);
9486 }
9487 }
9488 }
9489
9490 // Manually render anything within a selection
9491 let invisible_point = DisplayPoint::new(row, start as u32);
9492 if selection_ranges.iter().any(|region| {
9493 region.start <= invisible_point && invisible_point < region.end
9494 }) {
9495 paint(window, cx);
9496 }
9497
9498 last_seen = Some((should_render, end, paint));
9499 }
9500 }
9501 }
9502 }
9503
9504 pub fn x_for_index(&self, index: usize) -> Pixels {
9505 let mut fragment_start_x = Pixels::ZERO;
9506 let mut fragment_start_index = 0;
9507
9508 for fragment in &self.fragments {
9509 match fragment {
9510 LineFragment::Text(shaped_line) => {
9511 let fragment_end_index = fragment_start_index + shaped_line.len;
9512 if index < fragment_end_index {
9513 return fragment_start_x
9514 + shaped_line.x_for_index(index - fragment_start_index);
9515 }
9516 fragment_start_x += shaped_line.width;
9517 fragment_start_index = fragment_end_index;
9518 }
9519 LineFragment::Element { len, size, .. } => {
9520 let fragment_end_index = fragment_start_index + len;
9521 if index < fragment_end_index {
9522 return fragment_start_x;
9523 }
9524 fragment_start_x += size.width;
9525 fragment_start_index = fragment_end_index;
9526 }
9527 }
9528 }
9529
9530 fragment_start_x
9531 }
9532
9533 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
9534 let mut fragment_start_x = Pixels::ZERO;
9535 let mut fragment_start_index = 0;
9536
9537 for fragment in &self.fragments {
9538 match fragment {
9539 LineFragment::Text(shaped_line) => {
9540 let fragment_end_x = fragment_start_x + shaped_line.width;
9541 if x < fragment_end_x {
9542 return Some(
9543 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
9544 );
9545 }
9546 fragment_start_x = fragment_end_x;
9547 fragment_start_index += shaped_line.len;
9548 }
9549 LineFragment::Element { len, size, .. } => {
9550 let fragment_end_x = fragment_start_x + size.width;
9551 if x < fragment_end_x {
9552 return Some(fragment_start_index);
9553 }
9554 fragment_start_index += len;
9555 fragment_start_x = fragment_end_x;
9556 }
9557 }
9558 }
9559
9560 None
9561 }
9562
9563 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
9564 let mut fragment_start_index = 0;
9565
9566 for fragment in &self.fragments {
9567 match fragment {
9568 LineFragment::Text(shaped_line) => {
9569 let fragment_end_index = fragment_start_index + shaped_line.len;
9570 if index < fragment_end_index {
9571 return shaped_line.font_id_for_index(index - fragment_start_index);
9572 }
9573 fragment_start_index = fragment_end_index;
9574 }
9575 LineFragment::Element { len, .. } => {
9576 let fragment_end_index = fragment_start_index + len;
9577 if index < fragment_end_index {
9578 return None;
9579 }
9580 fragment_start_index = fragment_end_index;
9581 }
9582 }
9583 }
9584
9585 None
9586 }
9587
9588 pub fn alignment_offset(&self, text_align: TextAlign, content_width: Pixels) -> Pixels {
9589 let line_width = self.width;
9590 match text_align {
9591 TextAlign::Left => px(0.0),
9592 TextAlign::Center => (content_width - line_width) / 2.0,
9593 TextAlign::Right => content_width - line_width,
9594 }
9595 }
9596}
9597
9598#[derive(Debug, Clone, Copy, PartialEq, Eq)]
9599enum Invisible {
9600 /// A tab character
9601 ///
9602 /// A tab character is internally represented by spaces (configured by the user's tab width)
9603 /// aligned to the nearest column, so it's necessary to store the start and end offset for
9604 /// adjacency checks.
9605 Tab {
9606 line_start_offset: usize,
9607 line_end_offset: usize,
9608 },
9609 Whitespace {
9610 line_offset: usize,
9611 },
9612}
9613
9614impl EditorElement {
9615 /// Returns the rem size to use when rendering the [`EditorElement`].
9616 ///
9617 /// This allows UI elements to scale based on the `buffer_font_size`.
9618 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
9619 match self.editor.read(cx).mode {
9620 EditorMode::Full {
9621 scale_ui_elements_with_buffer_font_size: true,
9622 ..
9623 }
9624 | EditorMode::Minimap { .. } => {
9625 let buffer_font_size = self.style.text.font_size;
9626 match buffer_font_size {
9627 AbsoluteLength::Pixels(pixels) => {
9628 let rem_size_scale = {
9629 // Our default UI font size is 14px on a 16px base scale.
9630 // This means the default UI font size is 0.875rems.
9631 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
9632
9633 // We then determine the delta between a single rem and the default font
9634 // size scale.
9635 let default_font_size_delta = 1. - default_font_size_scale;
9636
9637 // Finally, we add this delta to 1rem to get the scale factor that
9638 // should be used to scale up the UI.
9639 1. + default_font_size_delta
9640 };
9641
9642 Some(pixels * rem_size_scale)
9643 }
9644 AbsoluteLength::Rems(rems) => {
9645 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
9646 }
9647 }
9648 }
9649 // We currently use single-line and auto-height editors in UI contexts,
9650 // so we don't want to scale everything with the buffer font size, as it
9651 // ends up looking off.
9652 _ => None,
9653 }
9654 }
9655
9656 fn editor_with_selections(&self, cx: &App) -> Option<Entity<Editor>> {
9657 if let EditorMode::Minimap { parent } = self.editor.read(cx).mode() {
9658 parent.upgrade()
9659 } else {
9660 Some(self.editor.clone())
9661 }
9662 }
9663}
9664
9665#[derive(Default)]
9666pub struct EditorRequestLayoutState {
9667 // We use prepaint depth to limit the number of times prepaint is
9668 // called recursively. We need this so that we can update stale
9669 // data for e.g. block heights in block map.
9670 prepaint_depth: Rc<Cell<usize>>,
9671}
9672
9673impl EditorRequestLayoutState {
9674 // In ideal conditions we only need one more subsequent prepaint call for resize to take effect.
9675 // i.e. MAX_PREPAINT_DEPTH = 2, but placing near blocks can expose more lines from below, and
9676 // we end up querying blocks for those lines too in subsequent renders.
9677 // Setting MAX_PREPAINT_DEPTH = 3, passes all tests. Just to be on the safe side we set it to 5, so
9678 // that subsequent shrinking does not lead to incorrect block placing.
9679 const MAX_PREPAINT_DEPTH: usize = 5;
9680
9681 fn increment_prepaint_depth(&self) -> EditorPrepaintGuard {
9682 let depth = self.prepaint_depth.get();
9683 self.prepaint_depth.set(depth + 1);
9684 EditorPrepaintGuard {
9685 prepaint_depth: self.prepaint_depth.clone(),
9686 }
9687 }
9688
9689 fn has_remaining_prepaint_depth(&self) -> bool {
9690 self.prepaint_depth.get() < Self::MAX_PREPAINT_DEPTH
9691 }
9692}
9693
9694struct EditorPrepaintGuard {
9695 prepaint_depth: Rc<Cell<usize>>,
9696}
9697
9698impl Drop for EditorPrepaintGuard {
9699 fn drop(&mut self) {
9700 let depth = self.prepaint_depth.get();
9701 self.prepaint_depth.set(depth.saturating_sub(1));
9702 }
9703}
9704
9705impl Element for EditorElement {
9706 type RequestLayoutState = EditorRequestLayoutState;
9707 type PrepaintState = EditorLayout;
9708
9709 fn id(&self) -> Option<ElementId> {
9710 None
9711 }
9712
9713 fn source_location(&self) -> Option<&'static core::panic::Location<'static>> {
9714 None
9715 }
9716
9717 fn request_layout(
9718 &mut self,
9719 _: Option<&GlobalElementId>,
9720 _inspector_id: Option<&gpui::InspectorElementId>,
9721 window: &mut Window,
9722 cx: &mut App,
9723 ) -> (gpui::LayoutId, Self::RequestLayoutState) {
9724 let rem_size = self.rem_size(cx);
9725 window.with_rem_size(rem_size, |window| {
9726 self.editor.update(cx, |editor, cx| {
9727 editor.set_style(self.style.clone(), window, cx);
9728
9729 let layout_id = match editor.mode {
9730 EditorMode::SingleLine => {
9731 let rem_size = window.rem_size();
9732 let height = self.style.text.line_height_in_pixels(rem_size);
9733 let mut style = Style::default();
9734 style.size.height = height.into();
9735 style.size.width = relative(1.).into();
9736 window.request_layout(style, None, cx)
9737 }
9738 EditorMode::AutoHeight {
9739 min_lines,
9740 max_lines,
9741 } => {
9742 let editor_handle = cx.entity();
9743 window.request_measured_layout(
9744 Style::default(),
9745 move |known_dimensions, available_space, window, cx| {
9746 editor_handle
9747 .update(cx, |editor, cx| {
9748 compute_auto_height_layout(
9749 editor,
9750 min_lines,
9751 max_lines,
9752 known_dimensions,
9753 available_space.width,
9754 window,
9755 cx,
9756 )
9757 })
9758 .unwrap_or_default()
9759 },
9760 )
9761 }
9762 EditorMode::Minimap { .. } => {
9763 let mut style = Style::default();
9764 style.size.width = relative(1.).into();
9765 style.size.height = relative(1.).into();
9766 window.request_layout(style, None, cx)
9767 }
9768 EditorMode::Full {
9769 sizing_behavior, ..
9770 } => {
9771 let mut style = Style::default();
9772 style.size.width = relative(1.).into();
9773 if sizing_behavior == SizingBehavior::SizeByContent {
9774 let snapshot = editor.snapshot(window, cx);
9775 let line_height =
9776 self.style.text.line_height_in_pixels(window.rem_size());
9777 let scroll_height =
9778 (snapshot.max_point().row().next_row().0 as f32) * line_height;
9779 style.size.height = scroll_height.into();
9780 } else {
9781 style.size.height = relative(1.).into();
9782 }
9783 window.request_layout(style, None, cx)
9784 }
9785 };
9786
9787 (layout_id, EditorRequestLayoutState::default())
9788 })
9789 })
9790 }
9791
9792 fn prepaint(
9793 &mut self,
9794 _: Option<&GlobalElementId>,
9795 _inspector_id: Option<&gpui::InspectorElementId>,
9796 bounds: Bounds<Pixels>,
9797 request_layout: &mut Self::RequestLayoutState,
9798 window: &mut Window,
9799 cx: &mut App,
9800 ) -> Self::PrepaintState {
9801 let _prepaint_depth_guard = request_layout.increment_prepaint_depth();
9802 let text_style = TextStyleRefinement {
9803 font_size: Some(self.style.text.font_size),
9804 line_height: Some(self.style.text.line_height),
9805 ..Default::default()
9806 };
9807
9808 let is_minimap = self.editor.read(cx).mode.is_minimap();
9809 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
9810
9811 if !is_minimap {
9812 let focus_handle = self.editor.focus_handle(cx);
9813 window.set_view_id(self.editor.entity_id());
9814 window.set_focus_handle(&focus_handle, cx);
9815 }
9816
9817 let rem_size = self.rem_size(cx);
9818 window.with_rem_size(rem_size, |window| {
9819 window.with_text_style(Some(text_style), |window| {
9820 window.with_content_mask(Some(ContentMask { bounds }), |window| {
9821 let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| {
9822 (editor.snapshot(window, cx), editor.read_only(cx))
9823 });
9824 let style = &self.style;
9825
9826 let rem_size = window.rem_size();
9827 let font_id = window.text_system().resolve_font(&style.text.font());
9828 let font_size = style.text.font_size.to_pixels(rem_size);
9829 let line_height = style.text.line_height_in_pixels(rem_size);
9830 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
9831 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
9832 let em_layout_width = window.text_system().em_layout_width(font_id, font_size);
9833 let glyph_grid_cell = size(em_advance, line_height);
9834
9835 let gutter_dimensions =
9836 snapshot.gutter_dimensions(font_id, font_size, style, window, cx);
9837 let text_width = bounds.size.width - gutter_dimensions.width;
9838
9839 let settings = EditorSettings::get_global(cx);
9840 let scrollbars_shown = settings.scrollbar.show != ShowScrollbar::Never;
9841 let vertical_scrollbar_width = (scrollbars_shown
9842 && settings.scrollbar.axes.vertical
9843 && self.editor.read(cx).show_scrollbars.vertical)
9844 .then_some(style.scrollbar_width)
9845 .unwrap_or_default();
9846 let minimap_width = self
9847 .get_minimap_width(
9848 &settings.minimap,
9849 scrollbars_shown,
9850 text_width,
9851 em_width,
9852 font_size,
9853 rem_size,
9854 cx,
9855 )
9856 .unwrap_or_default();
9857
9858 let right_margin = minimap_width + vertical_scrollbar_width;
9859
9860 let extended_right = 2 * em_width + right_margin;
9861 let editor_width = text_width - gutter_dimensions.margin - extended_right;
9862 let editor_margins = EditorMargins {
9863 gutter: gutter_dimensions,
9864 right: right_margin,
9865 extended_right,
9866 };
9867
9868 snapshot = self.editor.update(cx, |editor, cx| {
9869 editor.last_bounds = Some(bounds);
9870 editor.gutter_dimensions = gutter_dimensions;
9871 editor.set_visible_line_count(
9872 (bounds.size.height / line_height) as f64,
9873 window,
9874 cx,
9875 );
9876 editor.set_visible_column_count(f64::from(editor_width / em_advance));
9877
9878 if matches!(
9879 editor.mode,
9880 EditorMode::AutoHeight { .. } | EditorMode::Minimap { .. }
9881 ) {
9882 snapshot
9883 } else {
9884 let wrap_width = calculate_wrap_width(
9885 editor.soft_wrap_mode(cx),
9886 editor_width,
9887 em_layout_width,
9888 );
9889
9890 if editor.set_wrap_width(wrap_width, cx) {
9891 editor.snapshot(window, cx)
9892 } else {
9893 snapshot
9894 }
9895 }
9896 });
9897
9898 let hitbox = window.insert_hitbox(bounds, HitboxBehavior::Normal);
9899 let gutter_hitbox = window.insert_hitbox(
9900 gutter_bounds(bounds, gutter_dimensions),
9901 HitboxBehavior::Normal,
9902 );
9903 let text_hitbox = window.insert_hitbox(
9904 Bounds {
9905 origin: gutter_hitbox.top_right(),
9906 size: size(text_width, bounds.size.height),
9907 },
9908 HitboxBehavior::Normal,
9909 );
9910
9911 // Offset the content_bounds from the text_bounds by the gutter margin (which
9912 // is roughly half a character wide) to make hit testing work more like how we want.
9913 let content_offset = point(editor_margins.gutter.margin, Pixels::ZERO);
9914 let content_origin = text_hitbox.origin + content_offset;
9915
9916 let height_in_lines = f64::from(bounds.size.height / line_height);
9917 let max_row = snapshot.max_point().row().as_f64();
9918
9919 // Calculate how much of the editor is clipped by parent containers (e.g., List).
9920 // This allows us to only render lines that are actually visible, which is
9921 // critical for performance when large AutoHeight editors are inside Lists.
9922 let visible_bounds = window.content_mask().bounds;
9923 let clipped_top = (visible_bounds.origin.y - bounds.origin.y).max(px(0.));
9924 let clipped_top_in_lines = f64::from(clipped_top / line_height);
9925 let visible_height_in_lines =
9926 f64::from(visible_bounds.size.height / line_height);
9927
9928 // The max scroll position for the top of the window
9929 let scroll_beyond_last_line = self.editor.read(cx).scroll_beyond_last_line(cx);
9930 let max_scroll_top = match scroll_beyond_last_line {
9931 ScrollBeyondLastLine::OnePage => max_row,
9932 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
9933 ScrollBeyondLastLine::VerticalScrollMargin => {
9934 let settings = EditorSettings::get_global(cx);
9935 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
9936 .max(0.)
9937 }
9938 };
9939
9940 let (
9941 autoscroll_request,
9942 autoscroll_containing_element,
9943 needs_horizontal_autoscroll,
9944 ) = self.editor.update(cx, |editor, cx| {
9945 let autoscroll_request = editor.scroll_manager.take_autoscroll_request();
9946
9947 let autoscroll_containing_element =
9948 autoscroll_request.is_some() || editor.has_pending_selection();
9949
9950 let (needs_horizontal_autoscroll, was_scrolled) = editor
9951 .autoscroll_vertically(
9952 bounds,
9953 line_height,
9954 max_scroll_top,
9955 autoscroll_request,
9956 window,
9957 cx,
9958 );
9959 if was_scrolled.0 {
9960 snapshot = editor.snapshot(window, cx);
9961 }
9962 (
9963 autoscroll_request,
9964 autoscroll_containing_element,
9965 needs_horizontal_autoscroll,
9966 )
9967 });
9968
9969 let mut scroll_position = snapshot.scroll_position();
9970 // The scroll position is a fractional point, the whole number of which represents
9971 // the top of the window in terms of display rows.
9972 // We add clipped_top_in_lines to skip rows that are clipped by parent containers,
9973 // but we don't modify scroll_position itself since the parent handles positioning.
9974 let max_row = snapshot.max_point().row();
9975 let start_row = cmp::min(
9976 DisplayRow((scroll_position.y + clipped_top_in_lines).floor() as u32),
9977 max_row,
9978 );
9979 let end_row = cmp::min(
9980 (scroll_position.y + clipped_top_in_lines + visible_height_in_lines).ceil()
9981 as u32,
9982 max_row.next_row().0,
9983 );
9984 let end_row = DisplayRow(end_row);
9985
9986 let row_infos = snapshot // note we only get the visual range
9987 .row_infos(start_row)
9988 .take((start_row..end_row).len())
9989 .collect::<Vec<RowInfo>>();
9990 let is_row_soft_wrapped = |row: usize| {
9991 row_infos
9992 .get(row)
9993 .is_none_or(|info| info.buffer_row.is_none())
9994 };
9995
9996 let start_anchor = if start_row == Default::default() {
9997 Anchor::Min
9998 } else {
9999 snapshot.buffer_snapshot().anchor_before(
10000 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
10001 )
10002 };
10003 let end_anchor = if end_row > max_row {
10004 Anchor::Max
10005 } else {
10006 snapshot.buffer_snapshot().anchor_before(
10007 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
10008 )
10009 };
10010
10011 let mut highlighted_rows = self
10012 .editor
10013 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
10014
10015 let is_light = cx.theme().appearance().is_light();
10016
10017 let mut highlighted_ranges = self
10018 .editor_with_selections(cx)
10019 .map(|editor| {
10020 if editor == self.editor {
10021 editor.read(cx).background_highlights_in_range(
10022 start_anchor..end_anchor,
10023 &snapshot.display_snapshot,
10024 cx.theme(),
10025 )
10026 } else {
10027 editor.update(cx, |editor, cx| {
10028 let snapshot = editor.snapshot(window, cx);
10029 let start_anchor = if start_row == Default::default() {
10030 Anchor::Min
10031 } else {
10032 snapshot.buffer_snapshot().anchor_before(
10033 DisplayPoint::new(start_row, 0)
10034 .to_offset(&snapshot, Bias::Left),
10035 )
10036 };
10037 let end_anchor = if end_row > max_row {
10038 Anchor::Max
10039 } else {
10040 snapshot.buffer_snapshot().anchor_before(
10041 DisplayPoint::new(end_row, 0)
10042 .to_offset(&snapshot, Bias::Right),
10043 )
10044 };
10045
10046 editor.background_highlights_in_range(
10047 start_anchor..end_anchor,
10048 &snapshot.display_snapshot,
10049 cx.theme(),
10050 )
10051 })
10052 }
10053 })
10054 .unwrap_or_default();
10055
10056 for (ix, row_info) in row_infos.iter().enumerate() {
10057 let Some(diff_status) = row_info.diff_status else {
10058 continue;
10059 };
10060
10061 let background_color = match diff_status.kind {
10062 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
10063 DiffHunkStatusKind::Deleted => {
10064 cx.theme().colors().version_control_deleted
10065 }
10066 DiffHunkStatusKind::Modified => {
10067 debug_panic!("modified diff status for row info");
10068 continue;
10069 }
10070 };
10071
10072 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
10073
10074 let hollow_highlight = LineHighlight {
10075 background: (background_color.opacity(if is_light {
10076 0.08
10077 } else {
10078 0.06
10079 }))
10080 .into(),
10081 border: Some(if is_light {
10082 background_color.opacity(0.48)
10083 } else {
10084 background_color.opacity(0.36)
10085 }),
10086 include_gutter: true,
10087 type_id: None,
10088 };
10089
10090 let filled_highlight = LineHighlight {
10091 background: solid_background(background_color.opacity(hunk_opacity)),
10092 border: None,
10093 include_gutter: true,
10094 type_id: None,
10095 };
10096
10097 let background = if Self::diff_hunk_hollow(diff_status, cx) {
10098 hollow_highlight
10099 } else {
10100 filled_highlight
10101 };
10102
10103 let base_display_point =
10104 DisplayPoint::new(start_row + DisplayRow(ix as u32), 0);
10105
10106 highlighted_rows
10107 .entry(base_display_point.row())
10108 .or_insert(background);
10109 }
10110
10111 // Add diff review drag selection highlight to text area
10112 if let Some(drag_state) = &self.editor.read(cx).diff_review_drag_state {
10113 let range = drag_state.row_range(&snapshot.display_snapshot);
10114 let start_row = range.start().0;
10115 let end_row = range.end().0;
10116 let drag_highlight_color =
10117 cx.theme().colors().editor_active_line_background;
10118 let drag_highlight = LineHighlight {
10119 background: solid_background(drag_highlight_color),
10120 border: Some(cx.theme().colors().border_focused),
10121 include_gutter: true,
10122 type_id: None,
10123 };
10124 for row_num in start_row..=end_row {
10125 highlighted_rows
10126 .entry(DisplayRow(row_num))
10127 .or_insert(drag_highlight);
10128 }
10129 }
10130
10131 let highlighted_gutter_ranges =
10132 self.editor.read(cx).gutter_highlights_in_range(
10133 start_anchor..end_anchor,
10134 &snapshot.display_snapshot,
10135 cx,
10136 );
10137
10138 let document_colors = self
10139 .editor
10140 .read(cx)
10141 .colors
10142 .as_ref()
10143 .map(|colors| colors.editor_display_highlights(&snapshot));
10144 let redacted_ranges = self.editor.read(cx).redacted_ranges(
10145 start_anchor..end_anchor,
10146 &snapshot.display_snapshot,
10147 cx,
10148 );
10149
10150 let (local_selections, selected_buffer_ids, latest_selection_anchors): (
10151 Vec<Selection<Point>>,
10152 Vec<BufferId>,
10153 HashMap<BufferId, Anchor>,
10154 ) = self
10155 .editor_with_selections(cx)
10156 .map(|editor| {
10157 editor.update(cx, |editor, cx| {
10158 let all_selections =
10159 editor.selections.all::<Point>(&snapshot.display_snapshot);
10160 let all_anchor_selections =
10161 editor.selections.all_anchors(&snapshot.display_snapshot);
10162 let selected_buffer_ids =
10163 if editor.buffer_kind(cx) == ItemBufferKind::Singleton {
10164 Vec::new()
10165 } else {
10166 let mut selected_buffer_ids =
10167 Vec::with_capacity(all_selections.len());
10168
10169 for selection in all_selections {
10170 for buffer_id in snapshot
10171 .buffer_snapshot()
10172 .buffer_ids_for_range(selection.range())
10173 {
10174 if selected_buffer_ids.last() != Some(&buffer_id) {
10175 selected_buffer_ids.push(buffer_id);
10176 }
10177 }
10178 }
10179
10180 selected_buffer_ids
10181 };
10182
10183 let mut selections = editor.selections.disjoint_in_range(
10184 start_anchor..end_anchor,
10185 &snapshot.display_snapshot,
10186 );
10187 selections
10188 .extend(editor.selections.pending(&snapshot.display_snapshot));
10189
10190 let mut anchors_by_buffer: HashMap<BufferId, (usize, Anchor)> =
10191 HashMap::default();
10192 for selection in all_anchor_selections.iter() {
10193 let head = selection.head();
10194 if let Some((text_anchor, _)) =
10195 snapshot.buffer_snapshot().anchor_to_buffer_anchor(head)
10196 {
10197 anchors_by_buffer
10198 .entry(text_anchor.buffer_id)
10199 .and_modify(|(latest_id, latest_anchor)| {
10200 if selection.id > *latest_id {
10201 *latest_id = selection.id;
10202 *latest_anchor = head;
10203 }
10204 })
10205 .or_insert((selection.id, head));
10206 }
10207 }
10208 let latest_selection_anchors = anchors_by_buffer
10209 .into_iter()
10210 .map(|(buffer_id, (_, anchor))| (buffer_id, anchor))
10211 .collect();
10212
10213 (selections, selected_buffer_ids, latest_selection_anchors)
10214 })
10215 })
10216 .unwrap_or_else(|| (Vec::new(), Vec::new(), HashMap::default()));
10217
10218 let (selections, mut active_rows, newest_selection_head) = self
10219 .layout_selections(
10220 start_anchor,
10221 end_anchor,
10222 &local_selections,
10223 &snapshot,
10224 start_row,
10225 end_row,
10226 window,
10227 cx,
10228 );
10229
10230 // relative rows are based on newest selection, even outside the visible area
10231 let current_selection_head = self.editor.update(cx, |editor, cx| {
10232 (editor.selections.count() != 0).then(|| {
10233 let newest = editor
10234 .selections
10235 .newest::<Point>(&editor.display_snapshot(cx));
10236
10237 SelectionLayout::new(
10238 newest,
10239 editor.selections.line_mode(),
10240 editor.cursor_offset_on_selection,
10241 editor.cursor_shape,
10242 &snapshot,
10243 true,
10244 true,
10245 None,
10246 )
10247 .head
10248 .row()
10249 })
10250 });
10251
10252 let run_indicator_rows = self.editor.update(cx, |editor, cx| {
10253 editor.active_run_indicators(start_row..end_row, window, cx)
10254 });
10255
10256 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
10257 editor.active_breakpoints(start_row..end_row, window, cx)
10258 });
10259
10260 for (display_row, (_, bp, state)) in &breakpoint_rows {
10261 if bp.is_enabled() && state.is_none_or(|s| s.verified) {
10262 active_rows.entry(*display_row).or_default().breakpoint = true;
10263 }
10264 }
10265
10266 let gutter = Gutter {
10267 line_height,
10268 range: start_row..end_row,
10269 scroll_position,
10270 dimensions: &gutter_dimensions,
10271 hitbox: &gutter_hitbox,
10272 snapshot: &snapshot,
10273 row_infos: &row_infos,
10274 };
10275
10276 let line_numbers = self.layout_line_numbers(
10277 &gutter,
10278 &active_rows,
10279 current_selection_head,
10280 window,
10281 cx,
10282 );
10283
10284 let mut expand_toggles =
10285 window.with_element_namespace("expand_toggles", |window| {
10286 self.layout_expand_toggles(
10287 &gutter_hitbox,
10288 gutter_dimensions,
10289 em_width,
10290 line_height,
10291 scroll_position,
10292 &row_infos,
10293 window,
10294 cx,
10295 )
10296 });
10297
10298 let mut crease_toggles =
10299 window.with_element_namespace("crease_toggles", |window| {
10300 self.layout_crease_toggles(
10301 start_row..end_row,
10302 &row_infos,
10303 &active_rows,
10304 &snapshot,
10305 window,
10306 cx,
10307 )
10308 });
10309 let crease_trailers =
10310 window.with_element_namespace("crease_trailers", |window| {
10311 self.layout_crease_trailers(
10312 row_infos.iter().cloned(),
10313 &snapshot,
10314 window,
10315 cx,
10316 )
10317 });
10318
10319 let display_hunks = self.layout_gutter_diff_hunks(
10320 line_height,
10321 &gutter_hitbox,
10322 start_row..end_row,
10323 &snapshot,
10324 window,
10325 cx,
10326 );
10327
10328 Self::layout_word_diff_highlights(
10329 &display_hunks,
10330 &row_infos,
10331 start_row,
10332 &snapshot,
10333 &mut highlighted_ranges,
10334 cx,
10335 );
10336
10337 let merged_highlighted_ranges =
10338 if let Some((_, colors)) = document_colors.as_ref() {
10339 &highlighted_ranges
10340 .clone()
10341 .into_iter()
10342 .chain(colors.clone())
10343 .collect()
10344 } else {
10345 &highlighted_ranges
10346 };
10347 let bg_segments_per_row = Self::bg_segments_per_row(
10348 start_row..end_row,
10349 &selections,
10350 &merged_highlighted_ranges,
10351 self.style.background,
10352 );
10353
10354 let mut line_layouts = Self::layout_lines(
10355 start_row..end_row,
10356 &snapshot,
10357 &self.style,
10358 editor_width,
10359 is_row_soft_wrapped,
10360 &bg_segments_per_row,
10361 window,
10362 cx,
10363 );
10364 let new_renderer_widths = (!is_minimap).then(|| {
10365 line_layouts
10366 .iter()
10367 .flat_map(|layout| &layout.fragments)
10368 .filter_map(|fragment| {
10369 if let LineFragment::Element { id, size, .. } = fragment {
10370 Some((*id, size.width))
10371 } else {
10372 None
10373 }
10374 })
10375 });
10376 let renderer_widths_changed = request_layout.has_remaining_prepaint_depth()
10377 && new_renderer_widths.is_some_and(|new_renderer_widths| {
10378 self.editor.update(cx, |editor, cx| {
10379 editor.update_renderer_widths(new_renderer_widths, cx)
10380 })
10381 });
10382 if renderer_widths_changed {
10383 return self.prepaint(
10384 None,
10385 _inspector_id,
10386 bounds,
10387 request_layout,
10388 window,
10389 cx,
10390 );
10391 }
10392
10393 let longest_line_blame_width = self
10394 .editor
10395 .update(cx, |editor, cx| {
10396 if !editor.show_git_blame_inline {
10397 return None;
10398 }
10399 let blame = editor.blame.as_ref()?;
10400 let (_, blame_entry) = blame
10401 .update(cx, |blame, cx| {
10402 let row_infos =
10403 snapshot.row_infos(snapshot.longest_row()).next()?;
10404 blame.blame_for_rows(&[row_infos], cx).next()
10405 })
10406 .flatten()?;
10407 let mut element = render_inline_blame_entry(blame_entry, style, cx)?;
10408 let inline_blame_padding =
10409 ProjectSettings::get_global(cx).git.inline_blame.padding as f32
10410 * em_advance;
10411 Some(
10412 element
10413 .layout_as_root(AvailableSpace::min_size(), window, cx)
10414 .width
10415 + inline_blame_padding,
10416 )
10417 })
10418 .unwrap_or(Pixels::ZERO);
10419
10420 let longest_line_width = layout_line(
10421 snapshot.longest_row(),
10422 &snapshot,
10423 style,
10424 editor_width,
10425 is_row_soft_wrapped,
10426 window,
10427 cx,
10428 )
10429 .width;
10430
10431 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
10432 text_hitbox.bounds,
10433 glyph_grid_cell,
10434 size(
10435 longest_line_width,
10436 Pixels::from(max_row.as_f64() * f64::from(line_height)),
10437 ),
10438 longest_line_blame_width,
10439 EditorSettings::get_global(cx),
10440 scroll_beyond_last_line,
10441 );
10442
10443 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
10444
10445 let sticky_header_excerpt = if snapshot.buffer_snapshot().show_headers() {
10446 snapshot.sticky_header_excerpt(scroll_position.y)
10447 } else {
10448 None
10449 };
10450 let sticky_header_excerpt_id = sticky_header_excerpt
10451 .as_ref()
10452 .map(|top| top.excerpt.buffer_id());
10453
10454 let buffer = snapshot.buffer_snapshot();
10455 let start_buffer_row = MultiBufferRow(start_anchor.to_point(&buffer).row);
10456 let end_buffer_row = MultiBufferRow(end_anchor.to_point(&buffer).row);
10457
10458 let preliminary_scroll_pixel_position = point(
10459 scroll_position.x * f64::from(em_layout_width),
10460 scroll_position.y * f64::from(line_height),
10461 );
10462 let indent_guides = self.layout_indent_guides(
10463 content_origin,
10464 text_hitbox.origin,
10465 start_buffer_row..end_buffer_row,
10466 preliminary_scroll_pixel_position,
10467 line_height,
10468 &snapshot,
10469 window,
10470 cx,
10471 );
10472 let indent_guides_for_spacers = indent_guides.clone();
10473
10474 let blocks = (!is_minimap)
10475 .then(|| {
10476 window.with_element_namespace("blocks", |window| {
10477 self.render_blocks(
10478 start_row..end_row,
10479 &snapshot,
10480 &hitbox,
10481 &text_hitbox,
10482 editor_width,
10483 &mut scroll_width,
10484 &editor_margins,
10485 em_width,
10486 gutter_dimensions.full_width(),
10487 line_height,
10488 &mut line_layouts,
10489 &local_selections,
10490 &selected_buffer_ids,
10491 &latest_selection_anchors,
10492 is_row_soft_wrapped,
10493 sticky_header_excerpt_id,
10494 &indent_guides_for_spacers,
10495 window,
10496 cx,
10497 )
10498 })
10499 })
10500 .unwrap_or_default();
10501 let RenderBlocksOutput {
10502 non_spacer_blocks: mut blocks,
10503 mut spacer_blocks,
10504 row_block_types,
10505 resized_blocks,
10506 } = blocks;
10507 if let Some(resized_blocks) = resized_blocks {
10508 if request_layout.has_remaining_prepaint_depth() {
10509 self.editor.update(cx, |editor, cx| {
10510 editor.resize_blocks(
10511 resized_blocks,
10512 autoscroll_request.map(|(autoscroll, _)| autoscroll),
10513 cx,
10514 )
10515 });
10516 return self.prepaint(
10517 None,
10518 _inspector_id,
10519 bounds,
10520 request_layout,
10521 window,
10522 cx,
10523 );
10524 } else {
10525 debug_panic!(
10526 "dropping block resize because prepaint depth \
10527 limit was reached"
10528 );
10529 }
10530 }
10531
10532 let sticky_buffer_header = if self.should_show_buffer_headers() {
10533 sticky_header_excerpt.map(|sticky_header_excerpt| {
10534 window.with_element_namespace("blocks", |window| {
10535 self.layout_sticky_buffer_header(
10536 sticky_header_excerpt,
10537 scroll_position,
10538 line_height,
10539 right_margin,
10540 &snapshot,
10541 &hitbox,
10542 &selected_buffer_ids,
10543 &blocks,
10544 &latest_selection_anchors,
10545 window,
10546 cx,
10547 )
10548 })
10549 })
10550 } else {
10551 None
10552 };
10553
10554 let scroll_max: gpui::Point<ScrollPixelOffset> = point(
10555 ScrollPixelOffset::from(
10556 ((scroll_width - editor_width) / em_layout_width).max(0.0),
10557 ),
10558 max_scroll_top,
10559 );
10560
10561 self.editor.update(cx, |editor, cx| {
10562 if editor.scroll_manager.clamp_scroll_left(scroll_max.x, cx) {
10563 scroll_position.x = scroll_max.x.min(scroll_position.x);
10564 }
10565
10566 if needs_horizontal_autoscroll.0
10567 && let Some(new_scroll_position) = editor.autoscroll_horizontally(
10568 start_row,
10569 editor_width,
10570 scroll_width,
10571 em_advance,
10572 &line_layouts,
10573 autoscroll_request,
10574 window,
10575 cx,
10576 )
10577 {
10578 scroll_position = new_scroll_position;
10579 }
10580 });
10581
10582 let scroll_pixel_position = point(
10583 scroll_position.x * f64::from(em_layout_width),
10584 scroll_position.y * f64::from(line_height),
10585 );
10586 let sticky_headers = if !is_minimap
10587 && is_singleton
10588 && EditorSettings::get_global(cx).sticky_scroll.enabled
10589 {
10590 let relative = self.editor.read(cx).relative_line_numbers(cx);
10591 self.layout_sticky_headers(
10592 &snapshot,
10593 editor_width,
10594 is_row_soft_wrapped,
10595 line_height,
10596 scroll_pixel_position,
10597 content_origin,
10598 &gutter_dimensions,
10599 &gutter_hitbox,
10600 &text_hitbox,
10601 relative,
10602 current_selection_head,
10603 window,
10604 cx,
10605 )
10606 } else {
10607 None
10608 };
10609 let indent_guides =
10610 if scroll_pixel_position != preliminary_scroll_pixel_position {
10611 self.layout_indent_guides(
10612 content_origin,
10613 text_hitbox.origin,
10614 start_buffer_row..end_buffer_row,
10615 scroll_pixel_position,
10616 line_height,
10617 &snapshot,
10618 window,
10619 cx,
10620 )
10621 } else {
10622 indent_guides
10623 };
10624
10625 let crease_trailers =
10626 window.with_element_namespace("crease_trailers", |window| {
10627 self.prepaint_crease_trailers(
10628 crease_trailers,
10629 &line_layouts,
10630 line_height,
10631 content_origin,
10632 scroll_pixel_position,
10633 em_width,
10634 window,
10635 cx,
10636 )
10637 });
10638
10639 let (edit_prediction_popover, edit_prediction_popover_origin) = self
10640 .editor
10641 .update(cx, |editor, cx| {
10642 editor.render_edit_prediction_popover(
10643 &text_hitbox.bounds,
10644 content_origin,
10645 right_margin,
10646 &snapshot,
10647 start_row..end_row,
10648 scroll_position.y,
10649 scroll_position.y + height_in_lines,
10650 &line_layouts,
10651 line_height,
10652 scroll_position,
10653 scroll_pixel_position,
10654 newest_selection_head,
10655 editor_width,
10656 style,
10657 window,
10658 cx,
10659 )
10660 })
10661 .unzip();
10662
10663 let mut inline_diagnostics = self.layout_inline_diagnostics(
10664 &line_layouts,
10665 &crease_trailers,
10666 &row_block_types,
10667 content_origin,
10668 scroll_position,
10669 scroll_pixel_position,
10670 edit_prediction_popover_origin,
10671 start_row,
10672 end_row,
10673 line_height,
10674 em_width,
10675 style,
10676 window,
10677 cx,
10678 );
10679
10680 let mut inline_blame_layout = None;
10681 let mut inline_code_actions = None;
10682 if let Some(newest_selection_head) = newest_selection_head {
10683 let display_row = newest_selection_head.row();
10684 if (start_row..end_row).contains(&display_row)
10685 && !row_block_types.contains_key(&display_row)
10686 {
10687 inline_code_actions = self.layout_inline_code_actions(
10688 newest_selection_head,
10689 content_origin,
10690 scroll_position,
10691 scroll_pixel_position,
10692 line_height,
10693 &snapshot,
10694 window,
10695 cx,
10696 );
10697
10698 let line_ix = display_row.minus(start_row) as usize;
10699 if let (Some(row_info), Some(line_layout), Some(crease_trailer)) = (
10700 row_infos.get(line_ix),
10701 line_layouts.get(line_ix),
10702 crease_trailers.get(line_ix),
10703 ) {
10704 let crease_trailer_layout = crease_trailer.as_ref();
10705 if let Some(layout) = self.layout_inline_blame(
10706 display_row,
10707 row_info,
10708 line_layout,
10709 crease_trailer_layout,
10710 em_width,
10711 content_origin,
10712 scroll_position,
10713 scroll_pixel_position,
10714 line_height,
10715 window,
10716 cx,
10717 ) {
10718 inline_blame_layout = Some(layout);
10719 // Blame overrides inline diagnostics
10720 inline_diagnostics.remove(&display_row);
10721 }
10722 } else {
10723 log::error!(
10724 "bug: line_ix {} is out of bounds - row_infos.len(): {}, \
10725 line_layouts.len(): {}, \
10726 crease_trailers.len(): {}",
10727 line_ix,
10728 row_infos.len(),
10729 line_layouts.len(),
10730 crease_trailers.len(),
10731 );
10732 }
10733 }
10734 }
10735
10736 let blamed_display_rows = self.layout_blame_entries(
10737 &row_infos,
10738 em_width,
10739 scroll_position,
10740 line_height,
10741 &gutter_hitbox,
10742 gutter_dimensions.git_blame_entries_width,
10743 window,
10744 cx,
10745 );
10746
10747 let line_elements = self.prepaint_lines(
10748 start_row,
10749 &mut line_layouts,
10750 line_height,
10751 scroll_position,
10752 scroll_pixel_position,
10753 content_origin,
10754 window,
10755 cx,
10756 );
10757
10758 window.with_element_namespace("blocks", |window| {
10759 self.layout_blocks(
10760 &mut blocks,
10761 &hitbox,
10762 &gutter_hitbox,
10763 line_height,
10764 scroll_position,
10765 scroll_pixel_position,
10766 &editor_margins,
10767 window,
10768 cx,
10769 );
10770 self.layout_blocks(
10771 &mut spacer_blocks,
10772 &hitbox,
10773 &gutter_hitbox,
10774 line_height,
10775 scroll_position,
10776 scroll_pixel_position,
10777 &editor_margins,
10778 window,
10779 cx,
10780 );
10781 });
10782
10783 let cursors = self.collect_cursors(&snapshot, cx);
10784 let visible_row_range = start_row..end_row;
10785 let non_visible_cursors = cursors
10786 .iter()
10787 .any(|c| !visible_row_range.contains(&c.0.row()));
10788
10789 let visible_cursors = self.layout_visible_cursors(
10790 &snapshot,
10791 &selections,
10792 &row_block_types,
10793 start_row..end_row,
10794 &line_layouts,
10795 &text_hitbox,
10796 content_origin,
10797 scroll_position,
10798 scroll_pixel_position,
10799 line_height,
10800 em_width,
10801 em_advance,
10802 autoscroll_containing_element,
10803 &redacted_ranges,
10804 window,
10805 cx,
10806 );
10807 let navigation_overlay_paint_commands = self.layout_navigation_overlays(
10808 &snapshot,
10809 start_row..end_row,
10810 &line_layouts,
10811 &text_hitbox,
10812 content_origin,
10813 scroll_position,
10814 scroll_pixel_position,
10815 line_height,
10816 window,
10817 cx,
10818 );
10819
10820 let scrollbars_layout = self.layout_scrollbars(
10821 &snapshot,
10822 &scrollbar_layout_information,
10823 content_offset,
10824 scroll_position,
10825 non_visible_cursors,
10826 right_margin,
10827 editor_width,
10828 window,
10829 cx,
10830 );
10831
10832 let gutter_settings = EditorSettings::get_global(cx).gutter;
10833
10834 let context_menu_layout =
10835 if let Some(newest_selection_head) = newest_selection_head {
10836 let newest_selection_point =
10837 newest_selection_head.to_point(&snapshot.display_snapshot);
10838 if (start_row..end_row).contains(&newest_selection_head.row()) {
10839 self.layout_cursor_popovers(
10840 line_height,
10841 &text_hitbox,
10842 content_origin,
10843 right_margin,
10844 start_row,
10845 scroll_pixel_position,
10846 &line_layouts,
10847 newest_selection_head,
10848 newest_selection_point,
10849 style,
10850 window,
10851 cx,
10852 )
10853 } else {
10854 None
10855 }
10856 } else {
10857 None
10858 };
10859
10860 self.layout_gutter_menu(
10861 line_height,
10862 &text_hitbox,
10863 content_origin,
10864 right_margin,
10865 scroll_pixel_position,
10866 gutter_dimensions.width - gutter_dimensions.left_padding,
10867 window,
10868 cx,
10869 );
10870
10871 let test_indicators = if gutter_settings.runnables {
10872 self.layout_run_indicators(
10873 &gutter,
10874 &run_indicator_rows,
10875 &breakpoint_rows,
10876 window,
10877 cx,
10878 )
10879 } else {
10880 Vec::new()
10881 };
10882
10883 let show_bookmarks =
10884 snapshot.show_bookmarks.unwrap_or(gutter_settings.bookmarks);
10885
10886 let bookmark_rows = self.editor.update(cx, |editor, cx| {
10887 let mut rows = editor.active_bookmarks(start_row..end_row, window, cx);
10888 rows.retain(|k| !run_indicator_rows.contains(k));
10889 rows.retain(|k| !breakpoint_rows.contains_key(k));
10890 rows
10891 });
10892
10893 let bookmarks = if show_bookmarks {
10894 self.layout_bookmarks(&gutter, &bookmark_rows, window, cx)
10895 } else {
10896 Vec::new()
10897 };
10898
10899 let show_breakpoints = snapshot
10900 .show_breakpoints
10901 .unwrap_or(gutter_settings.breakpoints);
10902
10903 breakpoint_rows.retain(|k, _| !run_indicator_rows.contains(k));
10904 let mut breakpoints = if show_breakpoints {
10905 self.layout_breakpoints(&gutter, &breakpoint_rows, window, cx)
10906 } else {
10907 Vec::new()
10908 };
10909
10910 let gutter_hover_button = self
10911 .editor
10912 .read(cx)
10913 .gutter_hover_button
10914 .0
10915 .filter(|phantom| phantom.is_active)
10916 .map(|phantom| phantom.display_row);
10917
10918 if let Some(row) = gutter_hover_button
10919 && !breakpoint_rows.contains_key(&row)
10920 && !run_indicator_rows.contains(&row)
10921 && !bookmark_rows.contains(&row)
10922 && (show_bookmarks || show_breakpoints)
10923 {
10924 let position = snapshot
10925 .display_point_to_anchor(DisplayPoint::new(row, 0), Bias::Right);
10926 breakpoints.extend(
10927 self.layout_gutter_hover_button(&gutter, position, row, window, cx),
10928 );
10929 }
10930
10931 let git_gutter_width = Self::gutter_strip_width(line_height)
10932 + gutter_dimensions
10933 .git_blame_entries_width
10934 .unwrap_or_default();
10935 let available_width = gutter_dimensions.left_padding - git_gutter_width;
10936
10937 let max_line_number_length = self
10938 .editor
10939 .read(cx)
10940 .buffer()
10941 .read(cx)
10942 .snapshot(cx)
10943 .widest_line_number()
10944 .ilog10()
10945 + 1;
10946
10947 let diff_review_button = self
10948 .should_render_diff_review_button(
10949 start_row..end_row,
10950 &row_infos,
10951 &snapshot,
10952 cx,
10953 )
10954 .map(|(display_row, buffer_row)| {
10955 let is_wide = max_line_number_length
10956 >= EditorSettings::get_global(cx).gutter.min_line_number_digits
10957 as u32
10958 && buffer_row.is_some_and(|row| {
10959 (row + 1).ilog10() + 1 == max_line_number_length
10960 })
10961 || gutter_dimensions.right_padding == px(0.);
10962
10963 let button_width = if is_wide {
10964 available_width - px(6.)
10965 } else {
10966 available_width + em_width - px(6.)
10967 };
10968
10969 let button = self.editor.update(cx, |editor, cx| {
10970 editor
10971 .render_diff_review_button(display_row, button_width, cx)
10972 .into_any_element()
10973 });
10974 gutter.prepaint_button(button, display_row, window, cx)
10975 });
10976
10977 self.layout_signature_help(
10978 &hitbox,
10979 content_origin,
10980 scroll_pixel_position,
10981 newest_selection_head,
10982 start_row,
10983 &line_layouts,
10984 line_height,
10985 em_width,
10986 context_menu_layout,
10987 window,
10988 cx,
10989 );
10990
10991 if !cx.has_active_drag() {
10992 self.layout_hover_popovers(
10993 &snapshot,
10994 &hitbox,
10995 start_row..end_row,
10996 content_origin,
10997 scroll_pixel_position,
10998 &line_layouts,
10999 line_height,
11000 em_width,
11001 context_menu_layout,
11002 window,
11003 cx,
11004 );
11005
11006 self.layout_blame_popover(&snapshot, &hitbox, line_height, window, cx);
11007 }
11008
11009 let mouse_context_menu = self.layout_mouse_context_menu(
11010 &snapshot,
11011 start_row..end_row,
11012 content_origin,
11013 window,
11014 cx,
11015 );
11016
11017 window.with_element_namespace("crease_toggles", |window| {
11018 self.prepaint_crease_toggles(
11019 &mut crease_toggles,
11020 line_height,
11021 &gutter_dimensions,
11022 gutter_settings,
11023 scroll_pixel_position,
11024 &gutter_hitbox,
11025 window,
11026 cx,
11027 )
11028 });
11029
11030 window.with_element_namespace("expand_toggles", |window| {
11031 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
11032 });
11033
11034 let wrap_guides = self.layout_wrap_guides(
11035 em_advance,
11036 scroll_position,
11037 content_origin,
11038 scrollbars_layout.as_ref(),
11039 vertical_scrollbar_width,
11040 &hitbox,
11041 window,
11042 cx,
11043 );
11044
11045 let minimap = window.with_element_namespace("minimap", |window| {
11046 self.layout_minimap(
11047 &snapshot,
11048 minimap_width,
11049 scroll_position,
11050 &scrollbar_layout_information,
11051 scrollbars_layout.as_ref(),
11052 window,
11053 cx,
11054 )
11055 });
11056
11057 let invisible_symbol_font_size = font_size / 2.;
11058 let whitespace_map = &self
11059 .editor
11060 .read(cx)
11061 .buffer
11062 .read(cx)
11063 .language_settings(cx)
11064 .whitespace_map;
11065
11066 let tab_char = whitespace_map.tab.clone();
11067 let tab_len = tab_char.len();
11068 let tab_invisible = window.text_system().shape_line(
11069 tab_char,
11070 invisible_symbol_font_size,
11071 &[TextRun {
11072 len: tab_len,
11073 font: self.style.text.font(),
11074 color: cx.theme().colors().editor_invisible,
11075 ..Default::default()
11076 }],
11077 None,
11078 );
11079
11080 let space_char = whitespace_map.space.clone();
11081 let space_len = space_char.len();
11082 let space_invisible = window.text_system().shape_line(
11083 space_char,
11084 invisible_symbol_font_size,
11085 &[TextRun {
11086 len: space_len,
11087 font: self.style.text.font(),
11088 color: cx.theme().colors().editor_invisible,
11089 ..Default::default()
11090 }],
11091 None,
11092 );
11093
11094 let mode = snapshot.mode.clone();
11095
11096 let sticky_scroll_header_height = sticky_headers
11097 .as_ref()
11098 .and_then(|headers| headers.lines.last())
11099 .map_or(Pixels::ZERO, |last| last.offset + line_height);
11100
11101 let has_sticky_buffer_header =
11102 sticky_buffer_header.is_some() || sticky_header_excerpt_id.is_some();
11103 let sticky_header_height = if has_sticky_buffer_header {
11104 let full_height = FILE_HEADER_HEIGHT as f32 * line_height;
11105 let display_row = blocks
11106 .iter()
11107 .filter(|block| block.is_buffer_header)
11108 .find_map(|block| {
11109 block.row.filter(|row| row.0 > scroll_position.y as u32)
11110 });
11111 let offset = match display_row {
11112 Some(display_row) => {
11113 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
11114 let offset = (scroll_position.y - max_row as f64).max(0.0);
11115 let slide_up =
11116 Pixels::from(offset * ScrollPixelOffset::from(line_height));
11117
11118 (full_height - slide_up).max(Pixels::ZERO)
11119 }
11120 None => full_height,
11121 };
11122 let header_bottom_padding =
11123 BUFFER_HEADER_PADDING.to_pixels(window.rem_size());
11124 sticky_scroll_header_height + offset - header_bottom_padding
11125 } else {
11126 sticky_scroll_header_height
11127 };
11128
11129 let (diff_hunk_controls, diff_hunk_control_bounds) =
11130 if is_read_only && !self.editor.read(cx).delegate_stage_and_restore {
11131 (vec![], vec![])
11132 } else {
11133 self.layout_diff_hunk_controls(
11134 start_row..end_row,
11135 &row_infos,
11136 &text_hitbox,
11137 current_selection_head,
11138 line_height,
11139 right_margin,
11140 scroll_pixel_position,
11141 sticky_header_height,
11142 &display_hunks,
11143 &highlighted_rows,
11144 self.editor.clone(),
11145 window,
11146 cx,
11147 )
11148 };
11149
11150 let position_map = Rc::new(PositionMap {
11151 size: bounds.size,
11152 visible_row_range,
11153 scroll_position,
11154 scroll_pixel_position,
11155 scroll_max,
11156 line_layouts,
11157 line_height,
11158 em_width,
11159 em_advance,
11160 em_layout_width,
11161 snapshot,
11162 text_align: self.style.text.text_align,
11163 content_width: text_hitbox.size.width,
11164 gutter_hitbox: gutter_hitbox.clone(),
11165 text_hitbox: text_hitbox.clone(),
11166 inline_blame_bounds: inline_blame_layout
11167 .as_ref()
11168 .map(|layout| (layout.bounds, layout.buffer_id, layout.entry.clone())),
11169 display_hunks: display_hunks.clone(),
11170 diff_hunk_control_bounds,
11171 });
11172
11173 self.editor.update(cx, |editor, _| {
11174 editor.last_position_map = Some(position_map.clone())
11175 });
11176
11177 EditorLayout {
11178 mode,
11179 position_map,
11180 visible_display_row_range: start_row..end_row,
11181 wrap_guides,
11182 indent_guides,
11183 hitbox,
11184 gutter_hitbox,
11185 display_hunks,
11186 content_origin,
11187 scrollbars_layout,
11188 minimap,
11189 active_rows,
11190 highlighted_rows,
11191 highlighted_ranges,
11192 highlighted_gutter_ranges,
11193 redacted_ranges,
11194 document_colors,
11195 line_elements,
11196 line_numbers,
11197 blamed_display_rows,
11198 inline_diagnostics,
11199 inline_blame_layout,
11200 inline_code_actions,
11201 blocks,
11202 spacer_blocks,
11203 cursors,
11204 visible_cursors,
11205 navigation_overlay_paint_commands,
11206 selections,
11207 edit_prediction_popover,
11208 diff_hunk_controls,
11209 mouse_context_menu,
11210 test_indicators,
11211 bookmarks,
11212 breakpoints,
11213 diff_review_button,
11214 crease_toggles,
11215 crease_trailers,
11216 tab_invisible,
11217 space_invisible,
11218 sticky_buffer_header,
11219 sticky_headers,
11220 expand_toggles,
11221 text_align: self.style.text.text_align,
11222 content_width: text_hitbox.size.width,
11223 }
11224 })
11225 })
11226 })
11227 }
11228
11229 fn paint(
11230 &mut self,
11231 _: Option<&GlobalElementId>,
11232 _inspector_id: Option<&gpui::InspectorElementId>,
11233 bounds: Bounds<gpui::Pixels>,
11234 _: &mut Self::RequestLayoutState,
11235 layout: &mut Self::PrepaintState,
11236 window: &mut Window,
11237 cx: &mut App,
11238 ) {
11239 if !layout.mode.is_minimap() {
11240 let focus_handle = self.editor.focus_handle(cx);
11241 let key_context = self
11242 .editor
11243 .update(cx, |editor, cx| editor.key_context(window, cx));
11244
11245 window.set_key_context(key_context);
11246 window.handle_input(
11247 &focus_handle,
11248 ElementInputHandler::new(bounds, self.editor.clone()),
11249 cx,
11250 );
11251 self.register_actions(window, cx);
11252 self.register_key_listeners(window, cx, layout);
11253 }
11254
11255 let text_style = TextStyleRefinement {
11256 font_size: Some(self.style.text.font_size),
11257 line_height: Some(self.style.text.line_height),
11258 ..Default::default()
11259 };
11260 let rem_size = self.rem_size(cx);
11261 window.with_rem_size(rem_size, |window| {
11262 window.with_text_style(Some(text_style), |window| {
11263 window.with_content_mask(Some(ContentMask { bounds }), |window| {
11264 self.paint_mouse_listeners(layout, window, cx);
11265
11266 // Mask the editor behind sticky scroll headers. Important
11267 // for transparent backgrounds.
11268 let below_sticky_headers_mask = layout
11269 .sticky_headers
11270 .as_ref()
11271 .and_then(|h| h.lines.last())
11272 .map(|last| ContentMask {
11273 bounds: Bounds {
11274 origin: point(
11275 bounds.origin.x,
11276 bounds.origin.y + last.offset + layout.position_map.line_height,
11277 ),
11278 size: size(
11279 bounds.size.width,
11280 (bounds.size.height
11281 - last.offset
11282 - layout.position_map.line_height)
11283 .max(Pixels::ZERO),
11284 ),
11285 },
11286 });
11287
11288 window.with_content_mask(below_sticky_headers_mask, |window| {
11289 self.paint_background(layout, window, cx);
11290
11291 self.paint_indent_guides(layout, window, cx);
11292
11293 if layout.gutter_hitbox.size.width > Pixels::ZERO {
11294 self.paint_blamed_display_rows(layout, window, cx);
11295 self.paint_line_numbers(layout, window, cx);
11296 }
11297
11298 self.paint_text(layout, window, cx);
11299
11300 if !layout.spacer_blocks.is_empty() {
11301 window.with_element_namespace("blocks", |window| {
11302 self.paint_spacer_blocks(layout, window, cx);
11303 });
11304 }
11305
11306 if layout.gutter_hitbox.size.width > Pixels::ZERO {
11307 self.paint_gutter_highlights(layout, window, cx);
11308 self.paint_gutter_indicators(layout, window, cx);
11309 }
11310
11311 if !layout.blocks.is_empty() {
11312 window.with_element_namespace("blocks", |window| {
11313 self.paint_non_spacer_blocks(layout, window, cx);
11314 });
11315 }
11316 });
11317
11318 window.with_element_namespace("blocks", |window| {
11319 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
11320 sticky_header.paint(window, cx)
11321 }
11322 });
11323
11324 self.paint_sticky_headers(layout, window, cx);
11325 self.paint_minimap(layout, window, cx);
11326 self.paint_scrollbars(layout, window, cx);
11327 self.paint_edit_prediction_popover(layout, window, cx);
11328 self.paint_mouse_context_menu(layout, window, cx);
11329 });
11330 })
11331 })
11332 }
11333}
11334
11335pub(super) fn gutter_bounds(
11336 editor_bounds: Bounds<Pixels>,
11337 gutter_dimensions: GutterDimensions,
11338) -> Bounds<Pixels> {
11339 Bounds {
11340 origin: editor_bounds.origin,
11341 size: size(gutter_dimensions.width, editor_bounds.size.height),
11342 }
11343}
11344
11345#[derive(Clone, Copy)]
11346struct ContextMenuLayout {
11347 y_flipped: bool,
11348 bounds: Bounds<Pixels>,
11349}
11350
11351/// Holds information required for layouting the editor scrollbars.
11352struct ScrollbarLayoutInformation {
11353 /// The bounds of the editor area (excluding the content offset).
11354 editor_bounds: Bounds<Pixels>,
11355 /// The available range to scroll within the document.
11356 scroll_range: Size<Pixels>,
11357 /// The space available for one glyph in the editor.
11358 glyph_grid_cell: Size<Pixels>,
11359}
11360
11361impl ScrollbarLayoutInformation {
11362 pub fn new(
11363 editor_bounds: Bounds<Pixels>,
11364 glyph_grid_cell: Size<Pixels>,
11365 document_size: Size<Pixels>,
11366 longest_line_blame_width: Pixels,
11367 settings: &EditorSettings,
11368 scroll_beyond_last_line: ScrollBeyondLastLine,
11369 ) -> Self {
11370 let vertical_overscroll = match scroll_beyond_last_line {
11371 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
11372 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
11373 ScrollBeyondLastLine::VerticalScrollMargin => {
11374 (1.0 + settings.vertical_scroll_margin) as f32 * glyph_grid_cell.height
11375 }
11376 };
11377
11378 let overscroll = size(longest_line_blame_width, vertical_overscroll);
11379
11380 ScrollbarLayoutInformation {
11381 editor_bounds,
11382 scroll_range: document_size + overscroll,
11383 glyph_grid_cell,
11384 }
11385 }
11386}
11387
11388impl IntoElement for EditorElement {
11389 type Element = Self;
11390
11391 fn into_element(self) -> Self::Element {
11392 self
11393 }
11394}
11395
11396pub struct EditorLayout {
11397 position_map: Rc<PositionMap>,
11398 hitbox: Hitbox,
11399 gutter_hitbox: Hitbox,
11400 content_origin: gpui::Point<Pixels>,
11401 scrollbars_layout: Option<EditorScrollbars>,
11402 minimap: Option<MinimapLayout>,
11403 mode: EditorMode,
11404 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
11405 indent_guides: Option<Vec<IndentGuideLayout>>,
11406 visible_display_row_range: Range<DisplayRow>,
11407 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
11408 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
11409 line_elements: SmallVec<[AnyElement; 1]>,
11410 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
11411 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
11412 blamed_display_rows: Option<Vec<AnyElement>>,
11413 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
11414 inline_blame_layout: Option<InlineBlameLayout>,
11415 inline_code_actions: Option<AnyElement>,
11416 blocks: Vec<BlockLayout>,
11417 spacer_blocks: Vec<BlockLayout>,
11418 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
11419 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
11420 redacted_ranges: Vec<Range<DisplayPoint>>,
11421 cursors: Vec<(DisplayPoint, Hsla)>,
11422 visible_cursors: Vec<CursorLayout>,
11423 navigation_overlay_paint_commands: Vec<NavigationOverlayPaintCommand>,
11424 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
11425 test_indicators: Vec<AnyElement>,
11426 bookmarks: Vec<AnyElement>,
11427 breakpoints: Vec<AnyElement>,
11428 diff_review_button: Option<AnyElement>,
11429 crease_toggles: Vec<Option<AnyElement>>,
11430 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
11431 diff_hunk_controls: Vec<AnyElement>,
11432 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
11433 edit_prediction_popover: Option<AnyElement>,
11434 mouse_context_menu: Option<AnyElement>,
11435 tab_invisible: ShapedLine,
11436 space_invisible: ShapedLine,
11437 sticky_buffer_header: Option<AnyElement>,
11438 sticky_headers: Option<StickyHeaders>,
11439 document_colors: Option<(DocumentColorsRenderMode, Vec<(Range<DisplayPoint>, Hsla)>)>,
11440 text_align: TextAlign,
11441 content_width: Pixels,
11442}
11443
11444struct StickyHeaders {
11445 lines: Vec<StickyHeaderLine>,
11446 gutter_background: Hsla,
11447 content_background: Hsla,
11448 gutter_right_padding: Pixels,
11449}
11450
11451struct StickyHeaderLine {
11452 row: DisplayRow,
11453 offset: Pixels,
11454 line: Rc<LineWithInvisibles>,
11455 line_number: Option<ShapedLine>,
11456 elements: SmallVec<[AnyElement; 1]>,
11457 available_text_width: Pixels,
11458 hitbox: Hitbox,
11459}
11460
11461impl EditorLayout {
11462 fn line_end_overshoot(&self) -> Pixels {
11463 0.15 * self.position_map.line_height
11464 }
11465}
11466
11467impl StickyHeaders {
11468 fn paint(
11469 &mut self,
11470 layout: &mut EditorLayout,
11471 whitespace_setting: ShowWhitespaceSetting,
11472 window: &mut Window,
11473 cx: &mut App,
11474 ) {
11475 let line_height = layout.position_map.line_height;
11476
11477 for line in self.lines.iter_mut().rev() {
11478 window.paint_layer(
11479 Bounds::new(
11480 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
11481 size(line.hitbox.size.width, line_height),
11482 ),
11483 |window| {
11484 let gutter_bounds = Bounds::new(
11485 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
11486 size(layout.gutter_hitbox.size.width, line_height),
11487 );
11488 window.paint_quad(fill(gutter_bounds, self.gutter_background));
11489
11490 let text_bounds = Bounds::new(
11491 layout.position_map.text_hitbox.origin + point(Pixels::ZERO, line.offset),
11492 size(line.available_text_width, line_height),
11493 );
11494 window.paint_quad(fill(text_bounds, self.content_background));
11495
11496 if line.hitbox.is_hovered(window) {
11497 let hover_overlay = cx.theme().colors().panel_overlay_hover;
11498 window.paint_quad(fill(gutter_bounds, hover_overlay));
11499 window.paint_quad(fill(text_bounds, hover_overlay));
11500 }
11501
11502 line.paint(
11503 layout,
11504 self.gutter_right_padding,
11505 line.available_text_width,
11506 layout.content_origin,
11507 line_height,
11508 whitespace_setting,
11509 window,
11510 cx,
11511 );
11512 },
11513 );
11514
11515 window.set_cursor_style(CursorStyle::IBeam, &line.hitbox);
11516 }
11517 }
11518}
11519
11520impl StickyHeaderLine {
11521 fn new(
11522 row: DisplayRow,
11523 offset: Pixels,
11524 mut line: LineWithInvisibles,
11525 line_number: Option<ShapedLine>,
11526 line_height: Pixels,
11527 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
11528 content_origin: gpui::Point<Pixels>,
11529 gutter_hitbox: &Hitbox,
11530 text_hitbox: &Hitbox,
11531 window: &mut Window,
11532 cx: &mut App,
11533 ) -> Self {
11534 let mut elements = SmallVec::<[AnyElement; 1]>::new();
11535 line.prepaint_with_custom_offset(
11536 line_height,
11537 scroll_pixel_position,
11538 content_origin,
11539 offset,
11540 &mut elements,
11541 window,
11542 cx,
11543 );
11544
11545 let hitbox_bounds = Bounds::new(
11546 gutter_hitbox.origin + point(Pixels::ZERO, offset),
11547 size(text_hitbox.right() - gutter_hitbox.left(), line_height),
11548 );
11549 let available_text_width =
11550 (hitbox_bounds.size.width - gutter_hitbox.size.width).max(Pixels::ZERO);
11551
11552 Self {
11553 row,
11554 offset,
11555 line: Rc::new(line),
11556 line_number,
11557 elements,
11558 available_text_width,
11559 hitbox: window.insert_hitbox(hitbox_bounds, HitboxBehavior::BlockMouseExceptScroll),
11560 }
11561 }
11562
11563 fn paint(
11564 &mut self,
11565 layout: &EditorLayout,
11566 gutter_right_padding: Pixels,
11567 available_text_width: Pixels,
11568 content_origin: gpui::Point<Pixels>,
11569 line_height: Pixels,
11570 whitespace_setting: ShowWhitespaceSetting,
11571 window: &mut Window,
11572 cx: &mut App,
11573 ) {
11574 window.with_content_mask(
11575 Some(ContentMask {
11576 bounds: Bounds::new(
11577 layout.position_map.text_hitbox.bounds.origin
11578 + point(Pixels::ZERO, self.offset),
11579 size(available_text_width, line_height),
11580 ),
11581 }),
11582 |window| {
11583 self.line.draw_with_custom_offset(
11584 layout,
11585 self.row,
11586 content_origin,
11587 self.offset,
11588 whitespace_setting,
11589 &[],
11590 window,
11591 cx,
11592 );
11593 for element in &mut self.elements {
11594 element.paint(window, cx);
11595 }
11596 },
11597 );
11598
11599 if let Some(line_number) = &self.line_number {
11600 let gutter_origin = layout.gutter_hitbox.origin + point(Pixels::ZERO, self.offset);
11601 let gutter_width = layout.gutter_hitbox.size.width;
11602 let origin = point(
11603 gutter_origin.x + gutter_width - gutter_right_padding - line_number.width,
11604 gutter_origin.y,
11605 );
11606 line_number
11607 .paint(origin, line_height, TextAlign::Left, None, window, cx)
11608 .log_err();
11609 }
11610 }
11611}
11612
11613#[derive(Debug)]
11614struct LineNumberSegment {
11615 shaped_line: ShapedLine,
11616 hitbox: Option<Hitbox>,
11617}
11618
11619#[derive(Debug)]
11620struct LineNumberLayout {
11621 segments: SmallVec<[LineNumberSegment; 1]>,
11622}
11623
11624struct ColoredRange<T> {
11625 start: T,
11626 end: T,
11627 color: Hsla,
11628}
11629
11630impl Along for ScrollbarAxes {
11631 type Unit = bool;
11632
11633 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
11634 match axis {
11635 ScrollbarAxis::Horizontal => self.horizontal,
11636 ScrollbarAxis::Vertical => self.vertical,
11637 }
11638 }
11639
11640 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
11641 match axis {
11642 ScrollbarAxis::Horizontal => ScrollbarAxes {
11643 horizontal: f(self.horizontal),
11644 vertical: self.vertical,
11645 },
11646 ScrollbarAxis::Vertical => ScrollbarAxes {
11647 horizontal: self.horizontal,
11648 vertical: f(self.vertical),
11649 },
11650 }
11651 }
11652}
11653
11654#[derive(Clone)]
11655struct EditorScrollbars {
11656 pub vertical: Option<ScrollbarLayout>,
11657 pub horizontal: Option<ScrollbarLayout>,
11658 pub visible: bool,
11659}
11660
11661impl EditorScrollbars {
11662 pub fn from_scrollbar_axes(
11663 show_scrollbar: ScrollbarAxes,
11664 layout_information: &ScrollbarLayoutInformation,
11665 content_offset: gpui::Point<Pixels>,
11666 scroll_position: gpui::Point<f64>,
11667 scrollbar_width: Pixels,
11668 right_margin: Pixels,
11669 editor_width: Pixels,
11670 show_scrollbars: bool,
11671 scrollbar_state: Option<&ActiveScrollbarState>,
11672 window: &mut Window,
11673 ) -> Self {
11674 let ScrollbarLayoutInformation {
11675 editor_bounds,
11676 scroll_range,
11677 glyph_grid_cell,
11678 } = layout_information;
11679
11680 let viewport_size = size(editor_width, editor_bounds.size.height);
11681
11682 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
11683 ScrollbarAxis::Horizontal => Bounds::from_anchor_and_size(
11684 gpui::Anchor::BottomLeft,
11685 editor_bounds.bottom_left(),
11686 size(
11687 // The horizontal viewport size differs from the space available for the
11688 // horizontal scrollbar, so we have to manually stitch it together here.
11689 editor_bounds.size.width - right_margin,
11690 scrollbar_width,
11691 ),
11692 ),
11693 ScrollbarAxis::Vertical => Bounds::from_anchor_and_size(
11694 gpui::Anchor::TopRight,
11695 editor_bounds.top_right(),
11696 size(scrollbar_width, viewport_size.height),
11697 ),
11698 };
11699
11700 let mut create_scrollbar_layout = |axis| {
11701 let viewport_size = viewport_size.along(axis);
11702 let scroll_range = scroll_range.along(axis);
11703
11704 // We always want a vertical scrollbar track for scrollbar diagnostic visibility.
11705 (show_scrollbar.along(axis)
11706 && (axis == ScrollbarAxis::Vertical || scroll_range > viewport_size))
11707 .then(|| {
11708 ScrollbarLayout::new(
11709 window.insert_hitbox(scrollbar_bounds_for(axis), HitboxBehavior::Normal),
11710 viewport_size,
11711 scroll_range,
11712 glyph_grid_cell.along(axis),
11713 content_offset.along(axis),
11714 scroll_position.along(axis),
11715 show_scrollbars,
11716 axis,
11717 )
11718 .with_thumb_state(
11719 scrollbar_state.and_then(|state| state.thumb_state_for_axis(axis)),
11720 )
11721 })
11722 };
11723
11724 Self {
11725 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
11726 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
11727 visible: show_scrollbars,
11728 }
11729 }
11730
11731 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
11732 [
11733 (&self.vertical, ScrollbarAxis::Vertical),
11734 (&self.horizontal, ScrollbarAxis::Horizontal),
11735 ]
11736 .into_iter()
11737 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
11738 }
11739
11740 /// Returns the currently hovered scrollbar axis, if any.
11741 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
11742 self.iter_scrollbars()
11743 .find(|s| s.0.hitbox.is_hovered(window))
11744 }
11745}
11746
11747#[derive(Clone)]
11748struct ScrollbarLayout {
11749 hitbox: Hitbox,
11750 visible_range: Range<ScrollOffset>,
11751 text_unit_size: Pixels,
11752 thumb_bounds: Option<Bounds<Pixels>>,
11753 thumb_state: ScrollbarThumbState,
11754}
11755
11756impl ScrollbarLayout {
11757 const BORDER_WIDTH: Pixels = px(1.0);
11758 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
11759 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
11760 const MIN_THUMB_SIZE: Pixels = px(25.0);
11761
11762 fn new(
11763 scrollbar_track_hitbox: Hitbox,
11764 viewport_size: Pixels,
11765 scroll_range: Pixels,
11766 glyph_space: Pixels,
11767 content_offset: Pixels,
11768 scroll_position: ScrollOffset,
11769 show_thumb: bool,
11770 axis: ScrollbarAxis,
11771 ) -> Self {
11772 let track_bounds = scrollbar_track_hitbox.bounds;
11773 // The length of the track available to the scrollbar thumb. We deliberately
11774 // exclude the content size here so that the thumb aligns with the content.
11775 let track_length = track_bounds.size.along(axis) - content_offset;
11776
11777 Self::new_with_hitbox_and_track_length(
11778 scrollbar_track_hitbox,
11779 track_length,
11780 viewport_size,
11781 scroll_range.into(),
11782 glyph_space,
11783 content_offset.into(),
11784 scroll_position,
11785 show_thumb,
11786 axis,
11787 )
11788 }
11789
11790 fn for_minimap(
11791 minimap_track_hitbox: Hitbox,
11792 visible_lines: f64,
11793 total_editor_lines: f64,
11794 minimap_line_height: Pixels,
11795 scroll_position: ScrollOffset,
11796 minimap_scroll_top: ScrollOffset,
11797 show_thumb: bool,
11798 ) -> Self {
11799 // The scrollbar thumb size is calculated as
11800 // (visible_content/total_content) Γ scrollbar_track_length.
11801 //
11802 // For the minimap's thumb layout, we leverage this by setting the
11803 // scrollbar track length to the entire document size (using minimap line
11804 // height). This creates a thumb that exactly represents the editor
11805 // viewport scaled to minimap proportions.
11806 //
11807 // We adjust the thumb position relative to `minimap_scroll_top` to
11808 // accommodate for the deliberately oversized track.
11809 //
11810 // This approach ensures that the minimap thumb accurately reflects the
11811 // editor's current scroll position whilst nicely synchronizing the minimap
11812 // thumb and scrollbar thumb.
11813 let scroll_range = total_editor_lines * f64::from(minimap_line_height);
11814 let viewport_size = visible_lines * f64::from(minimap_line_height);
11815
11816 let track_top_offset = -minimap_scroll_top * f64::from(minimap_line_height);
11817
11818 Self::new_with_hitbox_and_track_length(
11819 minimap_track_hitbox,
11820 Pixels::from(scroll_range),
11821 Pixels::from(viewport_size),
11822 scroll_range,
11823 minimap_line_height,
11824 track_top_offset,
11825 scroll_position,
11826 show_thumb,
11827 ScrollbarAxis::Vertical,
11828 )
11829 }
11830
11831 fn new_with_hitbox_and_track_length(
11832 scrollbar_track_hitbox: Hitbox,
11833 track_length: Pixels,
11834 viewport_size: Pixels,
11835 scroll_range: f64,
11836 glyph_space: Pixels,
11837 content_offset: ScrollOffset,
11838 scroll_position: ScrollOffset,
11839 show_thumb: bool,
11840 axis: ScrollbarAxis,
11841 ) -> Self {
11842 let text_units_per_page = viewport_size.to_f64() / glyph_space.to_f64();
11843 let visible_range = scroll_position..scroll_position + text_units_per_page;
11844 let total_text_units = scroll_range / glyph_space.to_f64();
11845
11846 let thumb_percentage = text_units_per_page / total_text_units;
11847 let thumb_size = Pixels::from(ScrollOffset::from(track_length) * thumb_percentage)
11848 .max(ScrollbarLayout::MIN_THUMB_SIZE)
11849 .min(track_length);
11850
11851 let text_unit_divisor = (total_text_units - text_units_per_page).max(0.);
11852
11853 let content_larger_than_viewport = text_unit_divisor > 0.;
11854
11855 let text_unit_size = if content_larger_than_viewport {
11856 Pixels::from(ScrollOffset::from(track_length - thumb_size) / text_unit_divisor)
11857 } else {
11858 glyph_space
11859 };
11860
11861 let thumb_bounds = (show_thumb && content_larger_than_viewport).then(|| {
11862 Self::thumb_bounds(
11863 &scrollbar_track_hitbox,
11864 content_offset,
11865 visible_range.start,
11866 text_unit_size,
11867 thumb_size,
11868 axis,
11869 )
11870 });
11871
11872 ScrollbarLayout {
11873 hitbox: scrollbar_track_hitbox,
11874 visible_range,
11875 text_unit_size,
11876 thumb_bounds,
11877 thumb_state: Default::default(),
11878 }
11879 }
11880
11881 fn with_thumb_state(self, thumb_state: Option<ScrollbarThumbState>) -> Self {
11882 if let Some(thumb_state) = thumb_state {
11883 Self {
11884 thumb_state,
11885 ..self
11886 }
11887 } else {
11888 self
11889 }
11890 }
11891
11892 fn thumb_bounds(
11893 scrollbar_track: &Hitbox,
11894 content_offset: f64,
11895 visible_range_start: f64,
11896 text_unit_size: Pixels,
11897 thumb_size: Pixels,
11898 axis: ScrollbarAxis,
11899 ) -> Bounds<Pixels> {
11900 let thumb_origin = scrollbar_track.origin.apply_along(axis, |origin| {
11901 origin
11902 + Pixels::from(
11903 content_offset + visible_range_start * ScrollOffset::from(text_unit_size),
11904 )
11905 });
11906 Bounds::new(
11907 thumb_origin,
11908 scrollbar_track.size.apply_along(axis, |_| thumb_size),
11909 )
11910 }
11911
11912 fn thumb_hovered(&self, position: &gpui::Point<Pixels>) -> bool {
11913 self.thumb_bounds
11914 .is_some_and(|bounds| bounds.contains(position))
11915 }
11916
11917 fn marker_quads_for_ranges(
11918 &self,
11919 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
11920 column: Option<usize>,
11921 ) -> Vec<PaintQuad> {
11922 struct MinMax {
11923 min: Pixels,
11924 max: Pixels,
11925 }
11926 let (x_range, height_limit) = if let Some(column) = column {
11927 let column_width = ((self.hitbox.size.width - Self::BORDER_WIDTH) / 3.0).floor();
11928 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
11929 let end = start + column_width;
11930 (
11931 Range { start, end },
11932 MinMax {
11933 min: Self::MIN_MARKER_HEIGHT,
11934 max: px(f32::MAX),
11935 },
11936 )
11937 } else {
11938 (
11939 Range {
11940 start: Self::BORDER_WIDTH,
11941 end: self.hitbox.size.width,
11942 },
11943 MinMax {
11944 min: Self::LINE_MARKER_HEIGHT,
11945 max: Self::LINE_MARKER_HEIGHT,
11946 },
11947 )
11948 };
11949
11950 let row_to_y = |row: DisplayRow| row.as_f64() as f32 * self.text_unit_size;
11951 let mut pixel_ranges = row_ranges
11952 .into_iter()
11953 .map(|range| {
11954 let start_y = row_to_y(range.start);
11955 let end_y = row_to_y(range.end)
11956 + self
11957 .text_unit_size
11958 .max(height_limit.min)
11959 .min(height_limit.max);
11960 ColoredRange {
11961 start: start_y,
11962 end: end_y,
11963 color: range.color,
11964 }
11965 })
11966 .peekable();
11967
11968 let mut quads = Vec::new();
11969 while let Some(mut pixel_range) = pixel_ranges.next() {
11970 while let Some(next_pixel_range) = pixel_ranges.peek() {
11971 if pixel_range.end >= next_pixel_range.start - px(1.0)
11972 && pixel_range.color == next_pixel_range.color
11973 {
11974 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
11975 pixel_ranges.next();
11976 } else {
11977 break;
11978 }
11979 }
11980
11981 let bounds = Bounds::from_corners(
11982 point(x_range.start, pixel_range.start),
11983 point(x_range.end, pixel_range.end),
11984 );
11985 quads.push(quad(
11986 bounds,
11987 Corners::default(),
11988 pixel_range.color,
11989 Edges::default(),
11990 Hsla::transparent_black(),
11991 BorderStyle::default(),
11992 ));
11993 }
11994
11995 quads
11996 }
11997}
11998
11999struct MinimapLayout {
12000 pub minimap: AnyElement,
12001 pub thumb_layout: ScrollbarLayout,
12002 pub minimap_scroll_top: ScrollOffset,
12003 pub minimap_line_height: Pixels,
12004 pub thumb_border_style: MinimapThumbBorder,
12005 pub max_scroll_top: ScrollOffset,
12006}
12007
12008impl MinimapLayout {
12009 /// The minimum width of the minimap in columns. If the minimap is smaller than this, it will be hidden.
12010 const MINIMAP_MIN_WIDTH_COLUMNS: f32 = 20.;
12011 /// The minimap width as a percentage of the editor width.
12012 const MINIMAP_WIDTH_PCT: f32 = 0.15;
12013 /// Calculates the scroll top offset the minimap editor has to have based on the
12014 /// current scroll progress.
12015 fn calculate_minimap_top_offset(
12016 document_lines: f64,
12017 visible_editor_lines: f64,
12018 visible_minimap_lines: f64,
12019 scroll_position: f64,
12020 ) -> ScrollOffset {
12021 let non_visible_document_lines = (document_lines - visible_editor_lines).max(0.);
12022 if non_visible_document_lines == 0. {
12023 0.
12024 } else {
12025 let scroll_percentage = (scroll_position / non_visible_document_lines).clamp(0., 1.);
12026 scroll_percentage * (document_lines - visible_minimap_lines).max(0.)
12027 }
12028 }
12029}
12030
12031struct CreaseTrailerLayout {
12032 element: AnyElement,
12033 bounds: Bounds<Pixels>,
12034}
12035
12036pub(crate) struct PositionMap {
12037 pub size: Size<Pixels>,
12038 pub line_height: Pixels,
12039 pub scroll_position: gpui::Point<ScrollOffset>,
12040 pub scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
12041 pub scroll_max: gpui::Point<ScrollOffset>,
12042 pub em_width: Pixels,
12043 pub em_advance: Pixels,
12044 pub em_layout_width: Pixels,
12045 pub visible_row_range: Range<DisplayRow>,
12046 pub line_layouts: Vec<LineWithInvisibles>,
12047 pub snapshot: EditorSnapshot,
12048 pub text_align: TextAlign,
12049 pub content_width: Pixels,
12050 pub text_hitbox: Hitbox,
12051 pub gutter_hitbox: Hitbox,
12052 pub inline_blame_bounds: Option<(Bounds<Pixels>, BufferId, BlameEntry)>,
12053 pub display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
12054 pub diff_hunk_control_bounds: Vec<(DisplayRow, Bounds<Pixels>)>,
12055}
12056
12057#[derive(Debug, Copy, Clone)]
12058pub struct PointForPosition {
12059 pub previous_valid: DisplayPoint,
12060 pub next_valid: DisplayPoint,
12061 pub nearest_valid: DisplayPoint,
12062 pub exact_unclipped: DisplayPoint,
12063 pub column_overshoot_after_line_end: u32,
12064}
12065
12066impl PointForPosition {
12067 pub fn as_valid(&self) -> Option<DisplayPoint> {
12068 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
12069 Some(self.previous_valid)
12070 } else {
12071 None
12072 }
12073 }
12074
12075 pub fn intersects_selection(&self, selection: &Selection<DisplayPoint>) -> bool {
12076 let Some(valid_point) = self.as_valid() else {
12077 return false;
12078 };
12079 let range = selection.range();
12080
12081 let candidate_row = valid_point.row();
12082 let candidate_col = valid_point.column();
12083
12084 let start_row = range.start.row();
12085 let start_col = range.start.column();
12086 let end_row = range.end.row();
12087 let end_col = range.end.column();
12088
12089 if candidate_row < start_row || candidate_row > end_row {
12090 false
12091 } else if start_row == end_row {
12092 candidate_col >= start_col && candidate_col < end_col
12093 } else if candidate_row == start_row {
12094 candidate_col >= start_col
12095 } else if candidate_row == end_row {
12096 candidate_col < end_col
12097 } else {
12098 true
12099 }
12100 }
12101}
12102
12103impl PositionMap {
12104 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
12105 let text_bounds = self.text_hitbox.bounds;
12106 let scroll_position = self.snapshot.scroll_position();
12107 let position = position - text_bounds.origin;
12108 let y = position.y.max(px(0.)).min(self.size.height);
12109 let x = position.x + (scroll_position.x as f32 * self.em_layout_width);
12110 let row = ((y / self.line_height) as f64 + scroll_position.y) as u32;
12111
12112 let (column, x_overshoot_after_line_end) = if let Some(line) = self
12113 .line_layouts
12114 .get(row as usize - scroll_position.y as usize)
12115 {
12116 let alignment_offset = line.alignment_offset(self.text_align, self.content_width);
12117 let x_relative_to_text = x - alignment_offset;
12118 if let Some(ix) = line.index_for_x(x_relative_to_text) {
12119 (ix as u32, px(0.))
12120 } else {
12121 (line.len as u32, px(0.).max(x_relative_to_text - line.width))
12122 }
12123 } else {
12124 (0, x)
12125 };
12126
12127 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
12128 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
12129 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
12130
12131 let nearest_valid = if previous_valid == next_valid {
12132 previous_valid
12133 } else {
12134 match self.snapshot.inlay_bias_at(exact_unclipped) {
12135 Some(Bias::Left) => next_valid,
12136 Some(Bias::Right) => previous_valid,
12137 None => previous_valid,
12138 }
12139 };
12140
12141 let column_overshoot_after_line_end =
12142 (x_overshoot_after_line_end / self.em_layout_width) as u32;
12143 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
12144 PointForPosition {
12145 previous_valid,
12146 next_valid,
12147 nearest_valid,
12148 exact_unclipped,
12149 column_overshoot_after_line_end,
12150 }
12151 }
12152
12153 fn point_for_position_on_line(
12154 &self,
12155 position: gpui::Point<Pixels>,
12156 row: DisplayRow,
12157 line: &LineWithInvisibles,
12158 ) -> PointForPosition {
12159 let text_bounds = self.text_hitbox.bounds;
12160 let scroll_position = self.snapshot.scroll_position();
12161 let position = position - text_bounds.origin;
12162 let x = position.x + (scroll_position.x as f32 * self.em_layout_width);
12163
12164 let alignment_offset = line.alignment_offset(self.text_align, self.content_width);
12165 let x_relative_to_text = x - alignment_offset;
12166 let (column, x_overshoot_after_line_end) =
12167 if let Some(ix) = line.index_for_x(x_relative_to_text) {
12168 (ix as u32, px(0.))
12169 } else {
12170 (line.len as u32, px(0.).max(x_relative_to_text - line.width))
12171 };
12172
12173 let mut exact_unclipped = DisplayPoint::new(row, column);
12174 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
12175 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
12176
12177 let nearest_valid = if previous_valid == next_valid {
12178 previous_valid
12179 } else {
12180 match self.snapshot.inlay_bias_at(exact_unclipped) {
12181 Some(Bias::Left) => next_valid,
12182 Some(Bias::Right) => previous_valid,
12183 None => previous_valid,
12184 }
12185 };
12186
12187 let column_overshoot_after_line_end =
12188 (x_overshoot_after_line_end / self.em_layout_width) as u32;
12189 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
12190 PointForPosition {
12191 previous_valid,
12192 next_valid,
12193 nearest_valid,
12194 exact_unclipped,
12195 column_overshoot_after_line_end,
12196 }
12197 }
12198}
12199
12200pub(crate) struct BlockLayout {
12201 pub(crate) id: BlockId,
12202 pub(crate) x_offset: Pixels,
12203 pub(crate) row: Option<DisplayRow>,
12204 pub(crate) element: AnyElement,
12205 pub(crate) available_space: Size<AvailableSpace>,
12206 pub(crate) style: BlockStyle,
12207 pub(crate) overlaps_gutter: bool,
12208 pub(crate) is_buffer_header: bool,
12209}
12210
12211pub fn layout_line(
12212 row: DisplayRow,
12213 snapshot: &EditorSnapshot,
12214 style: &EditorStyle,
12215 text_width: Pixels,
12216 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
12217 window: &mut Window,
12218 cx: &mut App,
12219) -> LineWithInvisibles {
12220 let use_tree_sitter =
12221 !snapshot.semantic_tokens_enabled || snapshot.use_tree_sitter_for_syntax(row, cx);
12222 let language_aware = LanguageAwareStyling {
12223 tree_sitter: use_tree_sitter,
12224 diagnostics: true,
12225 };
12226 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), language_aware, style);
12227 LineWithInvisibles::from_chunks(
12228 chunks,
12229 style,
12230 MAX_LINE_LEN,
12231 1,
12232 &snapshot.mode,
12233 text_width,
12234 is_row_soft_wrapped,
12235 &[],
12236 window,
12237 cx,
12238 )
12239 .pop()
12240 .unwrap()
12241}
12242
12243#[derive(Debug, Clone)]
12244pub struct IndentGuideLayout {
12245 origin: gpui::Point<Pixels>,
12246 length: Pixels,
12247 single_indent_width: Pixels,
12248 display_row_range: Range<DisplayRow>,
12249 depth: u32,
12250 active: bool,
12251 settings: IndentGuideSettings,
12252}
12253
12254enum NavigationOverlayPaintCommand {
12255 Label(NavigationLabelLayout),
12256}
12257
12258struct NavigationLabelLayout {
12259 element: AnyElement,
12260 #[cfg_attr(not(test), allow(dead_code))]
12261 origin: gpui::Point<Pixels>,
12262}
12263
12264struct NavigationOverlayLayoutContext<'a> {
12265 display_snapshot: &'a DisplaySnapshot,
12266 visible_display_row_range: &'a Range<DisplayRow>,
12267 line_layouts: &'a [LineWithInvisibles],
12268 text_align: TextAlign,
12269 content_width: Pixels,
12270 content_origin: gpui::Point<Pixels>,
12271 scroll_position: gpui::Point<ScrollOffset>,
12272 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
12273 line_height: Pixels,
12274 editor_font: Font,
12275 editor_font_size: Pixels,
12276}
12277
12278const LABEL_LINE_HEIGHT_PADDING_PX: f32 = 2.0;
12279
12280pub struct CursorLayout {
12281 origin: gpui::Point<Pixels>,
12282 block_width: Pixels,
12283 line_height: Pixels,
12284 color: Hsla,
12285 shape: CursorShape,
12286 block_text: Option<ShapedLine>,
12287 cursor_name: Option<AnyElement>,
12288}
12289
12290#[derive(Debug)]
12291pub struct CursorName {
12292 string: SharedString,
12293 color: Hsla,
12294 is_top_row: bool,
12295}
12296
12297impl CursorLayout {
12298 pub fn new(
12299 origin: gpui::Point<Pixels>,
12300 block_width: Pixels,
12301 line_height: Pixels,
12302 color: Hsla,
12303 shape: CursorShape,
12304 block_text: Option<ShapedLine>,
12305 ) -> CursorLayout {
12306 CursorLayout {
12307 origin,
12308 block_width,
12309 line_height,
12310 color,
12311 shape,
12312 block_text,
12313 cursor_name: None,
12314 }
12315 }
12316
12317 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
12318 Bounds {
12319 origin: self.origin + origin,
12320 size: size(self.block_width, self.line_height),
12321 }
12322 }
12323
12324 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
12325 match self.shape {
12326 CursorShape::Bar => Bounds {
12327 origin: self.origin + origin,
12328 size: size(px(2.0), self.line_height),
12329 },
12330 CursorShape::Block | CursorShape::Hollow => Bounds {
12331 origin: self.origin + origin,
12332 size: size(self.block_width, self.line_height),
12333 },
12334 CursorShape::Underline => Bounds {
12335 origin: self.origin
12336 + origin
12337 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
12338 size: size(self.block_width, px(2.0)),
12339 },
12340 }
12341 }
12342
12343 pub fn layout(
12344 &mut self,
12345 origin: gpui::Point<Pixels>,
12346 cursor_name: Option<CursorName>,
12347 window: &mut Window,
12348 cx: &mut App,
12349 ) {
12350 if let Some(cursor_name) = cursor_name {
12351 let bounds = self.bounds(origin);
12352 let text_size = self.line_height / 1.5;
12353
12354 let name_origin = if cursor_name.is_top_row {
12355 point(bounds.right() - px(1.), bounds.top())
12356 } else {
12357 match self.shape {
12358 CursorShape::Bar => point(
12359 bounds.right() - px(2.),
12360 bounds.top() - text_size / 2. - px(1.),
12361 ),
12362 _ => point(
12363 bounds.right() - px(1.),
12364 bounds.top() - text_size / 2. - px(1.),
12365 ),
12366 }
12367 };
12368 let mut name_element = div()
12369 .bg(self.color)
12370 .text_size(text_size)
12371 .px_0p5()
12372 .line_height(text_size + px(LABEL_LINE_HEIGHT_PADDING_PX))
12373 .text_color(cursor_name.color)
12374 .child(cursor_name.string)
12375 .into_any_element();
12376
12377 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
12378
12379 self.cursor_name = Some(name_element);
12380 }
12381 }
12382
12383 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
12384 let bounds = self.bounds(origin);
12385
12386 //Draw background or border quad
12387 let cursor = if matches!(self.shape, CursorShape::Hollow) {
12388 outline(bounds, self.color, BorderStyle::Solid)
12389 } else {
12390 fill(bounds, self.color)
12391 };
12392
12393 if let Some(name) = &mut self.cursor_name {
12394 name.paint(window, cx);
12395 }
12396
12397 window.paint_quad(cursor);
12398
12399 if let Some(block_text) = &self.block_text {
12400 block_text
12401 .paint(
12402 self.origin + origin,
12403 self.line_height,
12404 TextAlign::Left,
12405 None,
12406 window,
12407 cx,
12408 )
12409 .log_err();
12410 }
12411 }
12412
12413 pub fn shape(&self) -> CursorShape {
12414 self.shape
12415 }
12416}
12417
12418#[derive(Debug)]
12419pub struct HighlightedRange {
12420 pub start_y: Pixels,
12421 pub line_height: Pixels,
12422 pub lines: Vec<HighlightedRangeLine>,
12423 pub color: Hsla,
12424 pub corner_radius: Pixels,
12425}
12426
12427#[derive(Debug)]
12428pub struct HighlightedRangeLine {
12429 pub start_x: Pixels,
12430 pub end_x: Pixels,
12431}
12432
12433impl HighlightedRange {
12434 pub fn paint(&self, fill: bool, bounds: Bounds<Pixels>, window: &mut Window) {
12435 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
12436 self.paint_lines(self.start_y, &self.lines[0..1], fill, bounds, window);
12437 self.paint_lines(
12438 self.start_y + self.line_height,
12439 &self.lines[1..],
12440 fill,
12441 bounds,
12442 window,
12443 );
12444 } else {
12445 self.paint_lines(self.start_y, &self.lines, fill, bounds, window);
12446 }
12447 }
12448
12449 fn paint_lines(
12450 &self,
12451 start_y: Pixels,
12452 lines: &[HighlightedRangeLine],
12453 fill: bool,
12454 _bounds: Bounds<Pixels>,
12455 window: &mut Window,
12456 ) {
12457 if lines.is_empty() {
12458 return;
12459 }
12460
12461 let first_line = lines.first().unwrap();
12462 let last_line = lines.last().unwrap();
12463
12464 let first_top_left = point(first_line.start_x, start_y);
12465 let first_top_right = point(first_line.end_x, start_y);
12466
12467 let curve_height = point(Pixels::ZERO, self.corner_radius);
12468 let curve_width = |start_x: Pixels, end_x: Pixels| {
12469 let max = (end_x - start_x) / 2.;
12470 let width = if max < self.corner_radius {
12471 max
12472 } else {
12473 self.corner_radius
12474 };
12475
12476 point(width, Pixels::ZERO)
12477 };
12478
12479 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
12480 let mut builder = if fill {
12481 gpui::PathBuilder::fill()
12482 } else {
12483 gpui::PathBuilder::stroke(px(1.))
12484 };
12485 builder.move_to(first_top_right - top_curve_width);
12486 builder.curve_to(first_top_right + curve_height, first_top_right);
12487
12488 let mut iter = lines.iter().enumerate().peekable();
12489 while let Some((ix, line)) = iter.next() {
12490 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
12491
12492 if let Some((_, next_line)) = iter.peek() {
12493 let next_top_right = point(next_line.end_x, bottom_right.y);
12494
12495 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
12496 Ordering::Equal => {
12497 builder.line_to(bottom_right);
12498 }
12499 Ordering::Less => {
12500 let curve_width = curve_width(next_top_right.x, bottom_right.x);
12501 builder.line_to(bottom_right - curve_height);
12502 if self.corner_radius > Pixels::ZERO {
12503 builder.curve_to(bottom_right - curve_width, bottom_right);
12504 }
12505 builder.line_to(next_top_right + curve_width);
12506 if self.corner_radius > Pixels::ZERO {
12507 builder.curve_to(next_top_right + curve_height, next_top_right);
12508 }
12509 }
12510 Ordering::Greater => {
12511 let curve_width = curve_width(bottom_right.x, next_top_right.x);
12512 builder.line_to(bottom_right - curve_height);
12513 if self.corner_radius > Pixels::ZERO {
12514 builder.curve_to(bottom_right + curve_width, bottom_right);
12515 }
12516 builder.line_to(next_top_right - curve_width);
12517 if self.corner_radius > Pixels::ZERO {
12518 builder.curve_to(next_top_right + curve_height, next_top_right);
12519 }
12520 }
12521 }
12522 } else {
12523 let curve_width = curve_width(line.start_x, line.end_x);
12524 builder.line_to(bottom_right - curve_height);
12525 if self.corner_radius > Pixels::ZERO {
12526 builder.curve_to(bottom_right - curve_width, bottom_right);
12527 }
12528
12529 let bottom_left = point(line.start_x, bottom_right.y);
12530 builder.line_to(bottom_left + curve_width);
12531 if self.corner_radius > Pixels::ZERO {
12532 builder.curve_to(bottom_left - curve_height, bottom_left);
12533 }
12534 }
12535 }
12536
12537 if first_line.start_x > last_line.start_x {
12538 let curve_width = curve_width(last_line.start_x, first_line.start_x);
12539 let second_top_left = point(last_line.start_x, start_y + self.line_height);
12540 builder.line_to(second_top_left + curve_height);
12541 if self.corner_radius > Pixels::ZERO {
12542 builder.curve_to(second_top_left + curve_width, second_top_left);
12543 }
12544 let first_bottom_left = point(first_line.start_x, second_top_left.y);
12545 builder.line_to(first_bottom_left - curve_width);
12546 if self.corner_radius > Pixels::ZERO {
12547 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
12548 }
12549 }
12550
12551 builder.line_to(first_top_left + curve_height);
12552 if self.corner_radius > Pixels::ZERO {
12553 builder.curve_to(first_top_left + top_curve_width, first_top_left);
12554 }
12555 builder.line_to(first_top_right - top_curve_width);
12556
12557 if let Ok(path) = builder.build() {
12558 window.paint_path(path, self.color);
12559 }
12560 }
12561}
12562
12563pub(crate) struct StickyHeader {
12564 pub sticky_row: DisplayRow,
12565 pub start_point: Point,
12566 pub offset: ScrollOffset,
12567}
12568
12569enum CursorPopoverType {
12570 CodeContextMenu,
12571 EditPrediction,
12572}
12573
12574pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
12575 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
12576}
12577
12578fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
12579 (delta.pow(1.2) / 300.0).into()
12580}
12581
12582pub fn register_action<T: Action>(
12583 editor: &Entity<Editor>,
12584 window: &mut Window,
12585 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
12586) {
12587 let editor = editor.clone();
12588 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
12589 let action = action.downcast_ref().unwrap();
12590 if phase == DispatchPhase::Bubble {
12591 editor.update(cx, |editor, cx| {
12592 listener(editor, action, window, cx);
12593 })
12594 }
12595 })
12596}
12597
12598/// Shared between `prepaint` and `compute_auto_height_layout` to ensure
12599/// both full and auto-height editors compute wrap widths consistently.
12600fn calculate_wrap_width(
12601 soft_wrap: SoftWrap,
12602 editor_width: Pixels,
12603 em_width: Pixels,
12604) -> Option<Pixels> {
12605 let wrap_width_for = |column: u32| (column as f32 * em_width).ceil();
12606
12607 match soft_wrap {
12608 SoftWrap::GitDiff => None,
12609 SoftWrap::None => Some(wrap_width_for(MAX_LINE_LEN as u32 / 2)),
12610 SoftWrap::EditorWidth => Some(editor_width),
12611 SoftWrap::Bounded(column) => Some(editor_width.min(wrap_width_for(column))),
12612 }
12613}
12614
12615fn compute_auto_height_layout(
12616 editor: &mut Editor,
12617 min_lines: usize,
12618 max_lines: Option<usize>,
12619 known_dimensions: Size<Option<Pixels>>,
12620 available_width: AvailableSpace,
12621 window: &mut Window,
12622 cx: &mut Context<Editor>,
12623) -> Option<Size<Pixels>> {
12624 let width = known_dimensions.width.or({
12625 if let AvailableSpace::Definite(available_width) = available_width {
12626 Some(available_width)
12627 } else {
12628 None
12629 }
12630 })?;
12631 if let Some(height) = known_dimensions.height {
12632 return Some(size(width, height));
12633 }
12634
12635 let style = editor.style.as_ref().unwrap();
12636 let font_id = window.text_system().resolve_font(&style.text.font());
12637 let font_size = style.text.font_size.to_pixels(window.rem_size());
12638 let line_height = style.text.line_height_in_pixels(window.rem_size());
12639 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
12640
12641 let mut snapshot = editor.snapshot(window, cx);
12642 let gutter_dimensions = snapshot.gutter_dimensions(font_id, font_size, style, window, cx);
12643
12644 editor.gutter_dimensions = gutter_dimensions;
12645 let text_width = width - gutter_dimensions.width;
12646 let overscroll = size(em_width, px(0.));
12647
12648 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
12649 let wrap_width = calculate_wrap_width(editor.soft_wrap_mode(cx), editor_width, em_width)
12650 .map(|width| width.min(editor_width));
12651 if wrap_width.is_some() && editor.set_wrap_width(wrap_width, cx) {
12652 snapshot = editor.snapshot(window, cx);
12653 }
12654
12655 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
12656
12657 let min_height = line_height * min_lines as f32;
12658 let content_height = scroll_height.max(min_height);
12659
12660 let final_height = if let Some(max_lines) = max_lines {
12661 let max_height = line_height * max_lines as f32;
12662 content_height.min(max_height)
12663 } else {
12664 content_height
12665 };
12666
12667 Some(size(width, final_height))
12668}
12669
12670#[cfg(test)]
12671mod tests {
12672 use super::*;
12673 use crate::{
12674 Editor, HighlightKey, MultiBuffer, NavigationOverlayKey, NavigationOverlayLabel,
12675 NavigationTargetOverlay, SelectionEffects,
12676 display_map::{BlockPlacement, BlockProperties},
12677 editor_tests::{init_test, update_test_language_settings},
12678 };
12679 use gpui::{TestAppContext, VisualTestContext};
12680 use language::{Buffer, language_settings, tree_sitter_python};
12681 use log::info;
12682 use rand::{RngCore, rngs::StdRng};
12683 use std::num::NonZeroU32;
12684 use util::test::sample_text;
12685
12686 enum PrimaryNavigationOverlay {}
12687
12688 const PRIMARY_NAVIGATION_OVERLAY_KEY: NavigationOverlayKey =
12689 NavigationOverlayKey::unique::<PrimaryNavigationOverlay>();
12690
12691 fn navigation_overlay(
12692 label_text: &'static str,
12693 target_range: Range<Anchor>,
12694 covered_text_range: Option<Range<Anchor>>,
12695 ) -> NavigationTargetOverlay {
12696 NavigationTargetOverlay {
12697 target_range,
12698 label: NavigationOverlayLabel {
12699 text: SharedString::from(label_text),
12700 text_color: Hsla::black(),
12701 x_offset: Pixels::ZERO,
12702 scale_factor: 1.0,
12703 },
12704 covered_text_range,
12705 }
12706 }
12707
12708 fn navigation_label_layouts(state: &EditorLayout) -> Vec<&NavigationLabelLayout> {
12709 state
12710 .navigation_overlay_paint_commands
12711 .iter()
12712 .map(|command| match command {
12713 NavigationOverlayPaintCommand::Label(label) => label,
12714 })
12715 .collect()
12716 }
12717
12718 const fn placeholder_hitbox() -> Hitbox {
12719 use gpui::HitboxId;
12720 let zero_bounds = Bounds {
12721 origin: point(Pixels::ZERO, Pixels::ZERO),
12722 size: Size {
12723 width: Pixels::ZERO,
12724 height: Pixels::ZERO,
12725 },
12726 };
12727
12728 Hitbox {
12729 id: HitboxId::placeholder(),
12730 bounds: zero_bounds,
12731 content_mask: ContentMask {
12732 bounds: zero_bounds,
12733 },
12734 behavior: HitboxBehavior::Normal,
12735 }
12736 }
12737
12738 fn test_gutter(line_height: Pixels, snapshot: &EditorSnapshot) -> Gutter<'_> {
12739 const DIMENSIONS: GutterDimensions = GutterDimensions {
12740 left_padding: Pixels::ZERO,
12741 right_padding: Pixels::ZERO,
12742 width: px(30.0),
12743 margin: Pixels::ZERO,
12744 git_blame_entries_width: None,
12745 };
12746 const EMPTY_ROW_INFO: RowInfo = RowInfo {
12747 buffer_id: None,
12748 buffer_row: None,
12749 multibuffer_row: None,
12750 diff_status: None,
12751 expand_info: None,
12752 wrapped_buffer_row: None,
12753 };
12754
12755 const fn row_info(row: u32) -> RowInfo {
12756 RowInfo {
12757 buffer_row: Some(row),
12758 ..EMPTY_ROW_INFO
12759 }
12760 }
12761
12762 const ROW_INFOS: [RowInfo; 6] = [
12763 row_info(0),
12764 row_info(1),
12765 row_info(2),
12766 row_info(3),
12767 row_info(4),
12768 row_info(5),
12769 ];
12770
12771 const HITBOX: Hitbox = placeholder_hitbox();
12772 Gutter {
12773 line_height,
12774 range: DisplayRow(0)..DisplayRow(6),
12775 scroll_position: gpui::Point::default(),
12776 dimensions: &DIMENSIONS,
12777 hitbox: &HITBOX,
12778 snapshot: snapshot,
12779 row_infos: &ROW_INFOS,
12780 }
12781 }
12782
12783 #[gpui::test]
12784 async fn test_soft_wrap_editor_width_auto_height_editor(cx: &mut TestAppContext) {
12785 init_test(cx, |_| {});
12786 let window = cx.add_window(|window, cx| {
12787 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
12788 let mut editor = Editor::new(
12789 EditorMode::AutoHeight {
12790 min_lines: 1,
12791 max_lines: None,
12792 },
12793 buffer,
12794 None,
12795 window,
12796 cx,
12797 );
12798 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12799 editor
12800 });
12801 let cx = &mut VisualTestContext::from_window(*window, cx);
12802 let editor = window.root(cx).unwrap();
12803 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12804
12805 for x in 1..=100 {
12806 let (_, state) = cx.draw(
12807 Default::default(),
12808 size(px(200. + 0.13 * x as f32), px(500.)),
12809 |_, _| EditorElement::new(&editor, style.clone()),
12810 );
12811
12812 assert!(
12813 state.position_map.scroll_max.x == 0.,
12814 "Soft wrapped editor should have no horizontal scrolling!"
12815 );
12816 }
12817 }
12818
12819 #[gpui::test]
12820 async fn test_soft_wrap_editor_width_full_editor(cx: &mut TestAppContext) {
12821 init_test(cx, |_| {});
12822 let window = cx.add_window(|window, cx| {
12823 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
12824 let mut editor = Editor::new(EditorMode::full(), buffer, None, window, cx);
12825 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12826 editor
12827 });
12828 let cx = &mut VisualTestContext::from_window(*window, cx);
12829 let editor = window.root(cx).unwrap();
12830 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12831
12832 for x in 1..=100 {
12833 let (_, state) = cx.draw(
12834 Default::default(),
12835 size(px(200. + 0.13 * x as f32), px(500.)),
12836 |_, _| EditorElement::new(&editor, style.clone()),
12837 );
12838
12839 assert!(
12840 state.position_map.scroll_max.x == 0.,
12841 "Soft wrapped editor should have no horizontal scrolling!"
12842 );
12843 }
12844 }
12845
12846 #[gpui::test]
12847 fn test_navigation_overlay_covered_text_highlights_are_replaced(cx: &mut TestAppContext) {
12848 init_test(cx, |_| {});
12849 let window = cx.add_window(|window, cx| {
12850 let buffer = MultiBuffer::build_simple("overlay replacement", cx);
12851 Editor::new(EditorMode::full(), buffer, None, window, cx)
12852 });
12853 let editor = window.root(cx).unwrap();
12854
12855 editor.update(cx, |editor, cx| {
12856 let buffer_snapshot = editor.buffer().read(cx).snapshot(cx);
12857 let target_start = buffer_snapshot.anchor_after(Point::new(0, 0));
12858 let target_end = buffer_snapshot.anchor_after(Point::new(0, 7));
12859 let covered_text_end = buffer_snapshot.anchor_after(Point::new(0, 2));
12860
12861 editor.set_navigation_overlays(
12862 PRIMARY_NAVIGATION_OVERLAY_KEY,
12863 vec![navigation_overlay(
12864 "ov",
12865 target_start..target_end,
12866 Some(target_start..covered_text_end),
12867 )],
12868 cx,
12869 );
12870 assert!(
12871 editor
12872 .text_highlights(
12873 HighlightKey::NavigationOverlay(PRIMARY_NAVIGATION_OVERLAY_KEY),
12874 cx,
12875 )
12876 .is_some()
12877 );
12878
12879 editor.set_navigation_overlays(
12880 PRIMARY_NAVIGATION_OVERLAY_KEY,
12881 vec![navigation_overlay("ov", target_start..target_end, None)],
12882 cx,
12883 );
12884 assert!(
12885 editor
12886 .text_highlights(
12887 HighlightKey::NavigationOverlay(PRIMARY_NAVIGATION_OVERLAY_KEY),
12888 cx,
12889 )
12890 .is_none()
12891 );
12892 });
12893 }
12894
12895 #[gpui::test]
12896 async fn test_navigation_overlay_repositions_when_editor_width_changes(
12897 cx: &mut TestAppContext,
12898 ) {
12899 init_test(cx, |_| {});
12900 let text = "jump target overlay ".repeat(16);
12901 let window = cx.add_window(|window, cx| {
12902 let buffer = MultiBuffer::build_simple(&text, cx);
12903 let mut editor = Editor::new(EditorMode::full(), buffer, None, window, cx);
12904 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12905 editor
12906 });
12907 let cx = &mut VisualTestContext::from_window(*window, cx);
12908 let editor = window.root(cx).unwrap();
12909
12910 editor.update(cx, |editor, cx| {
12911 let buffer_snapshot = editor.buffer().read(cx).snapshot(cx);
12912 let target_start = buffer_snapshot.anchor_after(Point::new(0, 30));
12913 let target_end = buffer_snapshot.anchor_after(Point::new(0, 40));
12914
12915 editor.set_navigation_overlays(
12916 PRIMARY_NAVIGATION_OVERLAY_KEY,
12917 vec![navigation_overlay("jj", target_start..target_end, None)],
12918 cx,
12919 );
12920 });
12921
12922 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12923 let (_, wide_state) = cx.draw(Default::default(), size(px(520.), px(260.)), |_, _| {
12924 EditorElement::new(&editor, style.clone())
12925 });
12926 let (_, narrow_state) = cx.draw(Default::default(), size(px(140.), px(260.)), |_, _| {
12927 EditorElement::new(&editor, style.clone())
12928 });
12929
12930 let wide_label_layouts = navigation_label_layouts(&wide_state);
12931 let narrow_label_layouts = navigation_label_layouts(&narrow_state);
12932
12933 assert_eq!(wide_label_layouts.len(), 1);
12934 assert_eq!(narrow_label_layouts.len(), 1);
12935
12936 let wide_label_origin = wide_label_layouts[0].origin;
12937 let narrow_label_origin = narrow_label_layouts[0].origin;
12938
12939 assert!(
12940 narrow_label_origin.y > wide_label_origin.y,
12941 "expected inline label to move to a later wrapped row when the editor narrows"
12942 );
12943 assert!(
12944 narrow_label_origin.x < wide_label_origin.x,
12945 "expected inline label to recompute its horizontal position for the wrapped row"
12946 );
12947 }
12948
12949 #[gpui::test]
12950 fn test_layout_line_numbers(cx: &mut TestAppContext) {
12951 init_test(cx, |_| {});
12952 let window = cx.add_window(|window, cx| {
12953 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
12954 Editor::new(EditorMode::full(), buffer, None, window, cx)
12955 });
12956
12957 let editor = window.root(cx).unwrap();
12958 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12959 let line_height = window
12960 .update(cx, |_, window, _| {
12961 style.text.line_height_in_pixels(window.rem_size())
12962 })
12963 .unwrap();
12964 let element = EditorElement::new(&editor, style);
12965 let snapshot = window
12966 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
12967 .unwrap();
12968
12969 let layouts = cx
12970 .update_window(*window, |_, window, cx| {
12971 element.layout_line_numbers(
12972 &test_gutter(line_height, &snapshot),
12973 &BTreeMap::default(),
12974 Some(DisplayRow(0)),
12975 window,
12976 cx,
12977 )
12978 })
12979 .unwrap();
12980 assert_eq!(layouts.len(), 6);
12981
12982 let relative_rows = window
12983 .update(cx, |editor, window, cx| {
12984 let snapshot = editor.snapshot(window, cx);
12985 snapshot.calculate_relative_line_numbers(
12986 &(DisplayRow(0)..DisplayRow(6)),
12987 DisplayRow(3),
12988 false,
12989 )
12990 })
12991 .unwrap();
12992 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12993 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12994 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12995 // current line has no relative number
12996 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12997 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12998 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12999
13000 // works if cursor is before screen
13001 let relative_rows = window
13002 .update(cx, |editor, window, cx| {
13003 let snapshot = editor.snapshot(window, cx);
13004 snapshot.calculate_relative_line_numbers(
13005 &(DisplayRow(3)..DisplayRow(6)),
13006 DisplayRow(1),
13007 false,
13008 )
13009 })
13010 .unwrap();
13011 assert_eq!(relative_rows.len(), 3);
13012 assert_eq!(relative_rows[&DisplayRow(3)], 2);
13013 assert_eq!(relative_rows[&DisplayRow(4)], 3);
13014 assert_eq!(relative_rows[&DisplayRow(5)], 4);
13015
13016 // works if cursor is after screen
13017 let relative_rows = window
13018 .update(cx, |editor, window, cx| {
13019 let snapshot = editor.snapshot(window, cx);
13020 snapshot.calculate_relative_line_numbers(
13021 &(DisplayRow(0)..DisplayRow(3)),
13022 DisplayRow(6),
13023 false,
13024 )
13025 })
13026 .unwrap();
13027 assert_eq!(relative_rows.len(), 3);
13028 assert_eq!(relative_rows[&DisplayRow(0)], 5);
13029 assert_eq!(relative_rows[&DisplayRow(1)], 4);
13030 assert_eq!(relative_rows[&DisplayRow(2)], 3);
13031
13032 let gutter = Gutter {
13033 row_infos: &(0..6)
13034 .map(|row| RowInfo {
13035 buffer_row: Some(row),
13036 diff_status: (row == DELETED_LINE).then(|| {
13037 DiffHunkStatus::deleted(
13038 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
13039 )
13040 }),
13041 ..Default::default()
13042 })
13043 .collect::<Vec<_>>(),
13044 ..test_gutter(line_height, &snapshot)
13045 };
13046
13047 const DELETED_LINE: u32 = 3;
13048 let layouts = cx
13049 .update_window(*window, |_, window, cx| {
13050 element.layout_line_numbers(
13051 &gutter,
13052 &BTreeMap::default(),
13053 Some(DisplayRow(0)),
13054 window,
13055 cx,
13056 )
13057 })
13058 .unwrap();
13059 assert_eq!(layouts.len(), 5,);
13060 assert!(
13061 layouts.get(&MultiBufferRow(DELETED_LINE)).is_none(),
13062 "Deleted line should not have a line number"
13063 );
13064 }
13065
13066 #[gpui::test]
13067 async fn test_layout_line_numbers_with_folded_lines(cx: &mut TestAppContext) {
13068 init_test(cx, |_| {});
13069
13070 let python_lang = languages::language("python", tree_sitter_python::LANGUAGE.into());
13071
13072 let window = cx.add_window(|window, cx| {
13073 let buffer = cx.new(|cx| {
13074 Buffer::local(
13075 indoc::indoc! {"
13076 fn test() -> int {
13077 return 2;
13078 }
13079
13080 fn another_test() -> int {
13081 # This is a very peculiar method that is hard to grasp.
13082 return 4;
13083 }
13084 "},
13085 cx,
13086 )
13087 .with_language(python_lang, cx)
13088 });
13089
13090 let buffer = MultiBuffer::build_from_buffer(buffer, cx);
13091 Editor::new(EditorMode::full(), buffer, None, window, cx)
13092 });
13093
13094 let editor = window.root(cx).unwrap();
13095 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
13096 let line_height = window
13097 .update(cx, |_, window, _| {
13098 style.text.line_height_in_pixels(window.rem_size())
13099 })
13100 .unwrap();
13101 let element = EditorElement::new(&editor, style);
13102 let snapshot = window
13103 .update(cx, |editor, window, cx| {
13104 editor.fold_at(MultiBufferRow(0), window, cx);
13105 editor.snapshot(window, cx)
13106 })
13107 .unwrap();
13108
13109 let layouts = cx
13110 .update_window(*window, |_, window, cx| {
13111 element.layout_line_numbers(
13112 &test_gutter(line_height, &snapshot),
13113 &BTreeMap::default(),
13114 Some(DisplayRow(3)),
13115 window,
13116 cx,
13117 )
13118 })
13119 .unwrap();
13120 assert_eq!(layouts.len(), 6);
13121
13122 let relative_rows = window
13123 .update(cx, |editor, window, cx| {
13124 let snapshot = editor.snapshot(window, cx);
13125 snapshot.calculate_relative_line_numbers(
13126 &(DisplayRow(0)..DisplayRow(6)),
13127 DisplayRow(3),
13128 false,
13129 )
13130 })
13131 .unwrap();
13132 assert_eq!(relative_rows[&DisplayRow(0)], 3);
13133 assert_eq!(relative_rows[&DisplayRow(1)], 2);
13134 assert_eq!(relative_rows[&DisplayRow(2)], 1);
13135 // current line has no relative number
13136 assert!(!relative_rows.contains_key(&DisplayRow(3)));
13137 assert_eq!(relative_rows[&DisplayRow(4)], 1);
13138 assert_eq!(relative_rows[&DisplayRow(5)], 2);
13139 }
13140
13141 #[gpui::test]
13142 fn test_layout_line_numbers_wrapping(cx: &mut TestAppContext) {
13143 init_test(cx, |_| {});
13144 let window = cx.add_window(|window, cx| {
13145 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
13146 Editor::new(EditorMode::full(), buffer, None, window, cx)
13147 });
13148
13149 update_test_language_settings(cx, &|s| {
13150 s.defaults.preferred_line_length = Some(5_u32);
13151 s.defaults.soft_wrap = Some(language_settings::SoftWrap::Bounded);
13152 });
13153
13154 let editor = window.root(cx).unwrap();
13155 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
13156 let line_height = window
13157 .update(cx, |_, window, _| {
13158 style.text.line_height_in_pixels(window.rem_size())
13159 })
13160 .unwrap();
13161 let element = EditorElement::new(&editor, style);
13162 let snapshot = window
13163 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
13164 .unwrap();
13165
13166 let layouts = cx
13167 .update_window(*window, |_, window, cx| {
13168 element.layout_line_numbers(
13169 &test_gutter(line_height, &snapshot),
13170 &BTreeMap::default(),
13171 Some(DisplayRow(0)),
13172 window,
13173 cx,
13174 )
13175 })
13176 .unwrap();
13177 assert_eq!(layouts.len(), 3);
13178
13179 let relative_rows = window
13180 .update(cx, |editor, window, cx| {
13181 let snapshot = editor.snapshot(window, cx);
13182 snapshot.calculate_relative_line_numbers(
13183 &(DisplayRow(0)..DisplayRow(6)),
13184 DisplayRow(3),
13185 true,
13186 )
13187 })
13188 .unwrap();
13189
13190 assert_eq!(relative_rows[&DisplayRow(0)], 3);
13191 assert_eq!(relative_rows[&DisplayRow(1)], 2);
13192 assert_eq!(relative_rows[&DisplayRow(2)], 1);
13193 // current line has no relative number
13194 assert!(!relative_rows.contains_key(&DisplayRow(3)));
13195 assert_eq!(relative_rows[&DisplayRow(4)], 1);
13196 assert_eq!(relative_rows[&DisplayRow(5)], 2);
13197
13198 let layouts = cx
13199 .update_window(*window, |_, window, cx| {
13200 element.layout_line_numbers(
13201 &Gutter {
13202 row_infos: &(0..6)
13203 .map(|row| RowInfo {
13204 buffer_row: Some(row),
13205 diff_status: Some(DiffHunkStatus::deleted(
13206 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
13207 )),
13208 ..Default::default()
13209 })
13210 .collect::<Vec<_>>(),
13211 ..test_gutter(line_height, &snapshot)
13212 },
13213 &BTreeMap::from_iter([(DisplayRow(0), LineHighlightSpec::default())]),
13214 Some(DisplayRow(0)),
13215 window,
13216 cx,
13217 )
13218 })
13219 .unwrap();
13220 assert!(
13221 layouts.is_empty(),
13222 "Deleted lines should have no line number"
13223 );
13224
13225 let relative_rows = window
13226 .update(cx, |editor, window, cx| {
13227 let snapshot = editor.snapshot(window, cx);
13228 snapshot.calculate_relative_line_numbers(
13229 &(DisplayRow(0)..DisplayRow(6)),
13230 DisplayRow(3),
13231 true,
13232 )
13233 })
13234 .unwrap();
13235
13236 // Deleted lines should still have relative numbers
13237 assert_eq!(relative_rows[&DisplayRow(0)], 3);
13238 assert_eq!(relative_rows[&DisplayRow(1)], 2);
13239 assert_eq!(relative_rows[&DisplayRow(2)], 1);
13240 // current line, even if deleted, has no relative number
13241 assert!(!relative_rows.contains_key(&DisplayRow(3)));
13242 assert_eq!(relative_rows[&DisplayRow(4)], 1);
13243 assert_eq!(relative_rows[&DisplayRow(5)], 2);
13244 }
13245
13246 #[gpui::test]
13247 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
13248 init_test(cx, |_| {});
13249
13250 let window = cx.add_window(|window, cx| {
13251 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
13252 Editor::new(EditorMode::full(), buffer, None, window, cx)
13253 });
13254 let cx = &mut VisualTestContext::from_window(*window, cx);
13255 let editor = window.root(cx).unwrap();
13256 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
13257
13258 window
13259 .update(cx, |editor, window, cx| {
13260 editor.cursor_offset_on_selection = true;
13261 editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
13262 s.select_ranges([
13263 Point::new(0, 0)..Point::new(1, 0),
13264 Point::new(3, 2)..Point::new(3, 3),
13265 Point::new(5, 6)..Point::new(6, 0),
13266 ]);
13267 });
13268 })
13269 .unwrap();
13270
13271 let (_, state) = cx.draw(
13272 point(px(500.), px(500.)),
13273 size(px(500.), px(500.)),
13274 |_, _| EditorElement::new(&editor, style),
13275 );
13276
13277 assert_eq!(state.selections.len(), 1);
13278 let local_selections = &state.selections[0].1;
13279 assert_eq!(local_selections.len(), 3);
13280 // moves cursor back one line
13281 assert_eq!(
13282 local_selections[0].head,
13283 DisplayPoint::new(DisplayRow(0), 6)
13284 );
13285 assert_eq!(
13286 local_selections[0].range,
13287 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
13288 );
13289
13290 // moves cursor back one column
13291 assert_eq!(
13292 local_selections[1].range,
13293 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
13294 );
13295 assert_eq!(
13296 local_selections[1].head,
13297 DisplayPoint::new(DisplayRow(3), 2)
13298 );
13299
13300 // leaves cursor on the max point
13301 assert_eq!(
13302 local_selections[2].range,
13303 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
13304 );
13305 assert_eq!(
13306 local_selections[2].head,
13307 DisplayPoint::new(DisplayRow(6), 0)
13308 );
13309
13310 // active lines does not include 1 (even though the range of the selection does)
13311 assert_eq!(
13312 state.active_rows.keys().cloned().collect::<Vec<_>>(),
13313 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
13314 );
13315 }
13316
13317 #[gpui::test]
13318 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
13319 init_test(cx, |_| {});
13320
13321 let window = cx.add_window(|window, cx| {
13322 let buffer = MultiBuffer::build_simple("", cx);
13323 Editor::new(EditorMode::full(), buffer, None, window, cx)
13324 });
13325 let cx = &mut VisualTestContext::from_window(*window, cx);
13326 let editor = window.root(cx).unwrap();
13327 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
13328 window
13329 .update(cx, |editor, window, cx| {
13330 editor.set_placeholder_text("hello", window, cx);
13331 editor.insert_blocks(
13332 [BlockProperties {
13333 style: BlockStyle::Fixed,
13334 placement: BlockPlacement::Above(Anchor::Min),
13335 height: Some(3),
13336 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
13337 priority: 0,
13338 }],
13339 None,
13340 cx,
13341 );
13342
13343 // Blur the editor so that it displays placeholder text.
13344 window.blur();
13345 })
13346 .unwrap();
13347
13348 let (_, state) = cx.draw(
13349 point(px(500.), px(500.)),
13350 size(px(500.), px(500.)),
13351 |_, _| EditorElement::new(&editor, style),
13352 );
13353 assert_eq!(state.position_map.line_layouts.len(), 4);
13354 assert_eq!(state.line_numbers.len(), 1);
13355 assert_eq!(
13356 state
13357 .line_numbers
13358 .get(&MultiBufferRow(0))
13359 .map(|line_number| line_number
13360 .segments
13361 .first()
13362 .unwrap()
13363 .shaped_line
13364 .text
13365 .as_ref()),
13366 Some("1")
13367 );
13368 }
13369
13370 #[gpui::test]
13371 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
13372 const TAB_SIZE: u32 = 4;
13373
13374 let input_text = "\t \t|\t| a b";
13375 let expected_invisibles = vec![
13376 Invisible::Tab {
13377 line_start_offset: 0,
13378 line_end_offset: TAB_SIZE as usize,
13379 },
13380 Invisible::Whitespace {
13381 line_offset: TAB_SIZE as usize,
13382 },
13383 Invisible::Tab {
13384 line_start_offset: TAB_SIZE as usize + 1,
13385 line_end_offset: TAB_SIZE as usize * 2,
13386 },
13387 Invisible::Tab {
13388 line_start_offset: TAB_SIZE as usize * 2 + 1,
13389 line_end_offset: TAB_SIZE as usize * 3,
13390 },
13391 Invisible::Whitespace {
13392 line_offset: TAB_SIZE as usize * 3 + 1,
13393 },
13394 Invisible::Whitespace {
13395 line_offset: TAB_SIZE as usize * 3 + 3,
13396 },
13397 ];
13398 assert_eq!(
13399 expected_invisibles.len(),
13400 input_text
13401 .chars()
13402 .filter(|initial_char| initial_char.is_whitespace())
13403 .count(),
13404 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
13405 );
13406
13407 for show_line_numbers in [true, false] {
13408 init_test(cx, |s| {
13409 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
13410 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
13411 });
13412
13413 let actual_invisibles = collect_invisibles_from_new_editor(
13414 cx,
13415 EditorMode::full(),
13416 input_text,
13417 px(500.0),
13418 show_line_numbers,
13419 );
13420
13421 assert_eq!(expected_invisibles, actual_invisibles);
13422 }
13423 }
13424
13425 #[gpui::test]
13426 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
13427 init_test(cx, |s| {
13428 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
13429 s.defaults.tab_size = NonZeroU32::new(4);
13430 });
13431
13432 for editor_mode_without_invisibles in [
13433 EditorMode::SingleLine,
13434 EditorMode::AutoHeight {
13435 min_lines: 1,
13436 max_lines: Some(100),
13437 },
13438 ] {
13439 for show_line_numbers in [true, false] {
13440 let invisibles = collect_invisibles_from_new_editor(
13441 cx,
13442 editor_mode_without_invisibles.clone(),
13443 "\t\t\t| | a b",
13444 px(500.0),
13445 show_line_numbers,
13446 );
13447 assert!(
13448 invisibles.is_empty(),
13449 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
13450 );
13451 }
13452 }
13453 }
13454
13455 #[gpui::test]
13456 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
13457 let tab_size = 4;
13458 let input_text = "a\tbcd ".repeat(9);
13459 let repeated_invisibles = [
13460 Invisible::Tab {
13461 line_start_offset: 1,
13462 line_end_offset: tab_size as usize,
13463 },
13464 Invisible::Whitespace {
13465 line_offset: tab_size as usize + 3,
13466 },
13467 Invisible::Whitespace {
13468 line_offset: tab_size as usize + 4,
13469 },
13470 Invisible::Whitespace {
13471 line_offset: tab_size as usize + 5,
13472 },
13473 Invisible::Whitespace {
13474 line_offset: tab_size as usize + 6,
13475 },
13476 Invisible::Whitespace {
13477 line_offset: tab_size as usize + 7,
13478 },
13479 ];
13480 let expected_invisibles = std::iter::once(repeated_invisibles)
13481 .cycle()
13482 .take(9)
13483 .flatten()
13484 .collect::<Vec<_>>();
13485 assert_eq!(
13486 expected_invisibles.len(),
13487 input_text
13488 .chars()
13489 .filter(|initial_char| initial_char.is_whitespace())
13490 .count(),
13491 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
13492 );
13493 info!("Expected invisibles: {expected_invisibles:?}");
13494
13495 init_test(cx, |_| {});
13496
13497 // Put the same string with repeating whitespace pattern into editors of various size,
13498 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
13499 let resize_step = 10.0;
13500 let mut editor_width = 200.0;
13501 while editor_width <= 1000.0 {
13502 for show_line_numbers in [true, false] {
13503 update_test_language_settings(cx, &|s| {
13504 s.defaults.tab_size = NonZeroU32::new(tab_size);
13505 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
13506 s.defaults.preferred_line_length = Some(editor_width as u32);
13507 s.defaults.soft_wrap = Some(language_settings::SoftWrap::Bounded);
13508 });
13509
13510 let actual_invisibles = collect_invisibles_from_new_editor(
13511 cx,
13512 EditorMode::full(),
13513 &input_text,
13514 px(editor_width),
13515 show_line_numbers,
13516 );
13517
13518 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
13519 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
13520 let mut i = 0;
13521 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
13522 i = actual_index;
13523 match expected_invisibles.get(i) {
13524 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
13525 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
13526 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
13527 _ => {
13528 panic!(
13529 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
13530 )
13531 }
13532 },
13533 None => {
13534 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
13535 }
13536 }
13537 }
13538 let missing_expected_invisibles = &expected_invisibles[i + 1..];
13539 assert!(
13540 missing_expected_invisibles.is_empty(),
13541 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
13542 );
13543
13544 editor_width += resize_step;
13545 }
13546 }
13547 }
13548
13549 fn collect_invisibles_from_new_editor(
13550 cx: &mut TestAppContext,
13551 editor_mode: EditorMode,
13552 input_text: &str,
13553 editor_width: Pixels,
13554 show_line_numbers: bool,
13555 ) -> Vec<Invisible> {
13556 info!(
13557 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
13558 f32::from(editor_width)
13559 );
13560 let window = cx.add_window(|window, cx| {
13561 let buffer = MultiBuffer::build_simple(input_text, cx);
13562 Editor::new(editor_mode, buffer, None, window, cx)
13563 });
13564 let cx = &mut VisualTestContext::from_window(*window, cx);
13565 let editor = window.root(cx).unwrap();
13566
13567 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
13568 window
13569 .update(cx, |editor, _, cx| {
13570 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
13571 editor.set_wrap_width(Some(editor_width), cx);
13572 editor.set_show_line_numbers(show_line_numbers, cx);
13573 })
13574 .unwrap();
13575 let (_, state) = cx.draw(
13576 point(px(500.), px(500.)),
13577 size(px(500.), px(500.)),
13578 |_, _| EditorElement::new(&editor, style),
13579 );
13580 state
13581 .position_map
13582 .line_layouts
13583 .iter()
13584 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
13585 .cloned()
13586 .collect()
13587 }
13588
13589 #[gpui::test]
13590 fn test_merge_overlapping_ranges() {
13591 let base_bg = Hsla::white();
13592 let color1 = Hsla {
13593 h: 0.0,
13594 s: 0.5,
13595 l: 0.5,
13596 a: 0.5,
13597 };
13598 let color2 = Hsla {
13599 h: 120.0,
13600 s: 0.5,
13601 l: 0.5,
13602 a: 0.5,
13603 };
13604
13605 let display_point = |col| DisplayPoint::new(DisplayRow(0), col);
13606 let cols = |v: &Vec<(Range<DisplayPoint>, Hsla)>| -> Vec<(u32, u32)> {
13607 v.iter()
13608 .map(|(r, _)| (r.start.column(), r.end.column()))
13609 .collect()
13610 };
13611
13612 // Test overlapping ranges blend colors
13613 let overlapping = vec![
13614 (display_point(5)..display_point(15), color1),
13615 (display_point(10)..display_point(20), color2),
13616 ];
13617 let result = EditorElement::merge_overlapping_ranges(overlapping, base_bg);
13618 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
13619
13620 // Test middle segment should have blended color
13621 let blended = Hsla::blend(Hsla::blend(base_bg, color1), color2);
13622 assert_eq!(result[1].1, blended);
13623
13624 // Test adjacent same-color ranges merge
13625 let adjacent_same = vec![
13626 (display_point(5)..display_point(10), color1),
13627 (display_point(10)..display_point(15), color1),
13628 ];
13629 let result = EditorElement::merge_overlapping_ranges(adjacent_same, base_bg);
13630 assert_eq!(cols(&result), vec![(5, 15)]);
13631
13632 // Test contained range splits
13633 let contained = vec![
13634 (display_point(5)..display_point(20), color1),
13635 (display_point(10)..display_point(15), color2),
13636 ];
13637 let result = EditorElement::merge_overlapping_ranges(contained, base_bg);
13638 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
13639
13640 // Test multiple overlaps split at every boundary
13641 let color3 = Hsla {
13642 h: 240.0,
13643 s: 0.5,
13644 l: 0.5,
13645 a: 0.5,
13646 };
13647 let complex = vec![
13648 (display_point(5)..display_point(12), color1),
13649 (display_point(8)..display_point(16), color2),
13650 (display_point(10)..display_point(14), color3),
13651 ];
13652 let result = EditorElement::merge_overlapping_ranges(complex, base_bg);
13653 assert_eq!(
13654 cols(&result),
13655 vec![(5, 8), (8, 10), (10, 12), (12, 14), (14, 16)]
13656 );
13657 }
13658
13659 #[gpui::test]
13660 fn test_bg_segments_per_row() {
13661 let base_bg = Hsla::white();
13662
13663 // Case A: selection spans three display rows: row 1 [5, end), full row 2, row 3 [0, 7)
13664 {
13665 let selection_color = Hsla {
13666 h: 200.0,
13667 s: 0.5,
13668 l: 0.5,
13669 a: 0.5,
13670 };
13671 let player_color = PlayerColor {
13672 cursor: selection_color,
13673 background: selection_color,
13674 selection: selection_color,
13675 };
13676
13677 let spanning_selection = SelectionLayout {
13678 head: DisplayPoint::new(DisplayRow(3), 7),
13679 cursor_shape: CursorShape::Bar,
13680 is_newest: true,
13681 is_local: true,
13682 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 7),
13683 active_rows: DisplayRow(1)..DisplayRow(4),
13684 user_name: None,
13685 };
13686
13687 let selections = vec![(player_color, vec![spanning_selection])];
13688 let result = EditorElement::bg_segments_per_row(
13689 DisplayRow(0)..DisplayRow(5),
13690 &selections,
13691 &[],
13692 base_bg,
13693 );
13694
13695 assert_eq!(result.len(), 5);
13696 assert!(result[0].is_empty());
13697 assert_eq!(result[1].len(), 1);
13698 assert_eq!(result[2].len(), 1);
13699 assert_eq!(result[3].len(), 1);
13700 assert!(result[4].is_empty());
13701
13702 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
13703 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
13704 assert_eq!(result[1][0].0.end.column(), u32::MAX);
13705 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
13706 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
13707 assert_eq!(result[2][0].0.end.column(), u32::MAX);
13708 assert_eq!(result[3][0].0.start, DisplayPoint::new(DisplayRow(3), 0));
13709 assert_eq!(result[3][0].0.end, DisplayPoint::new(DisplayRow(3), 7));
13710 }
13711
13712 // Case B: selection ends exactly at the start of row 3, excluding row 3
13713 {
13714 let selection_color = Hsla {
13715 h: 120.0,
13716 s: 0.5,
13717 l: 0.5,
13718 a: 0.5,
13719 };
13720 let player_color = PlayerColor {
13721 cursor: selection_color,
13722 background: selection_color,
13723 selection: selection_color,
13724 };
13725
13726 let selection = SelectionLayout {
13727 head: DisplayPoint::new(DisplayRow(2), 0),
13728 cursor_shape: CursorShape::Bar,
13729 is_newest: true,
13730 is_local: true,
13731 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 0),
13732 active_rows: DisplayRow(1)..DisplayRow(3),
13733 user_name: None,
13734 };
13735
13736 let selections = vec![(player_color, vec![selection])];
13737 let result = EditorElement::bg_segments_per_row(
13738 DisplayRow(0)..DisplayRow(4),
13739 &selections,
13740 &[],
13741 base_bg,
13742 );
13743
13744 assert_eq!(result.len(), 4);
13745 assert!(result[0].is_empty());
13746 assert_eq!(result[1].len(), 1);
13747 assert_eq!(result[2].len(), 1);
13748 assert!(result[3].is_empty());
13749
13750 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
13751 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
13752 assert_eq!(result[1][0].0.end.column(), u32::MAX);
13753 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
13754 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
13755 assert_eq!(result[2][0].0.end.column(), u32::MAX);
13756 }
13757 }
13758
13759 #[cfg(test)]
13760 fn generate_test_run(len: usize, color: Hsla) -> TextRun {
13761 TextRun {
13762 len,
13763 color,
13764 ..Default::default()
13765 }
13766 }
13767
13768 #[gpui::test]
13769 fn test_split_runs_by_bg_segments(cx: &mut gpui::TestAppContext) {
13770 init_test(cx, |_| {});
13771
13772 let dx = |start: u32, end: u32| {
13773 DisplayPoint::new(DisplayRow(0), start)..DisplayPoint::new(DisplayRow(0), end)
13774 };
13775
13776 let text_color = Hsla {
13777 h: 210.0,
13778 s: 0.1,
13779 l: 0.4,
13780 a: 1.0,
13781 };
13782 let bg_1 = Hsla {
13783 h: 30.0,
13784 s: 0.6,
13785 l: 0.8,
13786 a: 1.0,
13787 };
13788 let bg_2 = Hsla {
13789 h: 200.0,
13790 s: 0.6,
13791 l: 0.2,
13792 a: 1.0,
13793 };
13794 let min_contrast = 45.0;
13795 let adjusted_bg1 = ensure_minimum_contrast(text_color, bg_1, min_contrast);
13796 let adjusted_bg2 = ensure_minimum_contrast(text_color, bg_2, min_contrast);
13797
13798 // Case A: single run; disjoint segments inside the run
13799 {
13800 let runs = vec![generate_test_run(20, text_color)];
13801 let segs = vec![(dx(5, 10), bg_1), (dx(12, 16), bg_2)];
13802 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13803 // Expected slices: [0,5) [5,10) [10,12) [12,16) [16,20)
13804 assert_eq!(
13805 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13806 vec![5, 5, 2, 4, 4]
13807 );
13808 assert_eq!(out[0].color, text_color);
13809 assert_eq!(out[1].color, adjusted_bg1);
13810 assert_eq!(out[2].color, text_color);
13811 assert_eq!(out[3].color, adjusted_bg2);
13812 assert_eq!(out[4].color, text_color);
13813 }
13814
13815 // Case B: multiple runs; segment extends to end of line (u32::MAX)
13816 {
13817 let runs = vec![
13818 generate_test_run(8, text_color),
13819 generate_test_run(7, text_color),
13820 ];
13821 let segs = vec![(dx(6, u32::MAX), bg_1)];
13822 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13823 // Expected slices across runs: [0,6) [6,8) | [0,7)
13824 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![6, 2, 7]);
13825 assert_eq!(out[0].color, text_color);
13826 assert_eq!(out[1].color, adjusted_bg1);
13827 assert_eq!(out[2].color, adjusted_bg1);
13828 }
13829
13830 // Case C: multi-byte characters
13831 {
13832 // for text: "Hello π δΈη!"
13833 let runs = vec![
13834 generate_test_run(5, text_color), // "Hello"
13835 generate_test_run(6, text_color), // " π "
13836 generate_test_run(6, text_color), // "δΈη"
13837 generate_test_run(1, text_color), // "!"
13838 ];
13839 // selecting "π δΈ"
13840 let segs = vec![(dx(6, 14), bg_1)];
13841 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13842 // "Hello" | " " | "π " | "δΈ" | "η" | "!"
13843 assert_eq!(
13844 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13845 vec![5, 1, 5, 3, 3, 1]
13846 );
13847 assert_eq!(out[0].color, text_color); // "Hello"
13848 assert_eq!(out[2].color, adjusted_bg1); // "π "
13849 assert_eq!(out[3].color, adjusted_bg1); // "δΈ"
13850 assert_eq!(out[4].color, text_color); // "η"
13851 assert_eq!(out[5].color, text_color); // "!"
13852 }
13853
13854 // Case D: split multiple consecutive text runs with segments
13855 {
13856 let segs = vec![
13857 (dx(2, 4), bg_1), // selecting "cd"
13858 (dx(4, 8), bg_2), // selecting "efgh"
13859 (dx(9, 11), bg_1), // selecting "jk"
13860 (dx(12, 16), bg_2), // selecting "mnop"
13861 (dx(18, 19), bg_1), // selecting "s"
13862 ];
13863
13864 // for text: "abcdef"
13865 let runs = vec![
13866 generate_test_run(2, text_color), // ab
13867 generate_test_run(4, text_color), // cdef
13868 ];
13869 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13870 // new splits "ab", "cd", "ef"
13871 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![2, 2, 2]);
13872 assert_eq!(out[0].color, text_color);
13873 assert_eq!(out[1].color, adjusted_bg1);
13874 assert_eq!(out[2].color, adjusted_bg2);
13875
13876 // for text: "ghijklmn"
13877 let runs = vec![
13878 generate_test_run(3, text_color), // ghi
13879 generate_test_run(2, text_color), // jk
13880 generate_test_run(3, text_color), // lmn
13881 ];
13882 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 6); // 2 + 4 from first run
13883 // new splits "gh", "i", "jk", "l", "mn"
13884 assert_eq!(
13885 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13886 vec![2, 1, 2, 1, 2]
13887 );
13888 assert_eq!(out[0].color, adjusted_bg2);
13889 assert_eq!(out[1].color, text_color);
13890 assert_eq!(out[2].color, adjusted_bg1);
13891 assert_eq!(out[3].color, text_color);
13892 assert_eq!(out[4].color, adjusted_bg2);
13893
13894 // for text: "opqrs"
13895 let runs = vec![
13896 generate_test_run(1, text_color), // o
13897 generate_test_run(4, text_color), // pqrs
13898 ];
13899 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 14); // 6 + 3 + 2 + 3 from first two runs
13900 // new splits "o", "p", "qr", "s"
13901 assert_eq!(
13902 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13903 vec![1, 1, 2, 1]
13904 );
13905 assert_eq!(out[0].color, adjusted_bg2);
13906 assert_eq!(out[1].color, adjusted_bg2);
13907 assert_eq!(out[2].color, text_color);
13908 assert_eq!(out[3].color, adjusted_bg1);
13909 }
13910 }
13911
13912 #[test]
13913 fn test_spacer_pattern_period() {
13914 // line height is smaller than target height, so we just return half the line height
13915 assert_eq!(EditorElement::spacer_pattern_period(10.0, 20.0), 5.0);
13916
13917 // line height is exactly half the target height, perfect match
13918 assert_eq!(EditorElement::spacer_pattern_period(20.0, 10.0), 10.0);
13919
13920 // line height is close to half the target height
13921 assert_eq!(EditorElement::spacer_pattern_period(20.0, 9.0), 10.0);
13922
13923 // line height is close to 1/4 the target height
13924 assert_eq!(EditorElement::spacer_pattern_period(20.0, 4.8), 5.0);
13925 }
13926
13927 #[gpui::test(iterations = 100)]
13928 fn test_random_spacer_pattern_period(mut rng: StdRng) {
13929 let line_height = rng.next_u32() as f32;
13930 let target_height = rng.next_u32() as f32;
13931
13932 let result = EditorElement::spacer_pattern_period(line_height, target_height);
13933
13934 let k = line_height / result;
13935 assert!(k - k.round() < 0.0000001); // approximately integer
13936 assert!((k.round() as u32).is_multiple_of(2));
13937 }
13938
13939 #[test]
13940 fn test_calculate_wrap_width() {
13941 let editor_width = px(800.0);
13942 let em_width = px(8.0);
13943
13944 assert_eq!(
13945 calculate_wrap_width(SoftWrap::GitDiff, editor_width, em_width),
13946 None,
13947 );
13948
13949 assert_eq!(
13950 calculate_wrap_width(SoftWrap::None, editor_width, em_width),
13951 Some(px((MAX_LINE_LEN as f32 / 2.0 * 8.0).ceil())),
13952 );
13953
13954 assert_eq!(
13955 calculate_wrap_width(SoftWrap::EditorWidth, editor_width, em_width),
13956 Some(px(800.0)),
13957 );
13958
13959 assert_eq!(
13960 calculate_wrap_width(SoftWrap::Bounded(72), editor_width, em_width),
13961 Some(px((72.0 * 8.0_f32).ceil())),
13962 );
13963 assert_eq!(
13964 calculate_wrap_width(SoftWrap::Bounded(200), px(400.0), em_width),
13965 Some(px(400.0)),
13966 );
13967 }
13968}