1use crate::{
2 ActiveDiagnostic, BlockId, CURSORS_VISIBLE_FOR, ChunkRendererContext, ChunkReplacement,
3 CodeActionSource, ColumnarMode, ConflictsOurs, ConflictsOursMarker, ConflictsOuter,
4 ConflictsTheirs, ConflictsTheirsMarker, ContextMenuPlacement, CursorShape, CustomBlockId,
5 DisplayDiffHunk, DisplayPoint, DisplayRow, EditDisplayMode, EditPrediction, Editor, EditorMode,
6 EditorSettings, EditorSnapshot, EditorStyle, FILE_HEADER_HEIGHT, FocusedBlock,
7 GutterDimensions, HalfPageDown, HalfPageUp, HandleInput, HoveredCursor, InlayHintRefreshReason,
8 JumpData, LineDown, LineHighlight, LineUp, MAX_LINE_LEN, MINIMAP_FONT_SIZE,
9 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT, OpenExcerpts, PageDown, PageUp, PhantomBreakpointIndicator,
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};
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, Corner, Corners, CursorStyle,
44 DispatchPhase, Edges, Element, ElementInputHandler, Entity, Focusable as _, FontId, FontWeight,
45 GlobalElementId, Hitbox, HitboxBehavior, Hsla, InteractiveElement, IntoElement, IsZero,
46 KeybindingKeystroke, Length, Modifiers, ModifiersChangedEvent, MouseButton, MouseClickEvent,
47 MouseDownEvent, MouseMoveEvent, MousePressureEvent, MouseUpEvent, PaintQuad, ParentElement,
48 Pixels, PressureStage, ScrollDelta, ScrollHandle, ScrollWheelEvent, ShapedLine, SharedString,
49 Size, StatefulInteractiveElement, Style, Styled, StyledText, TextAlign, TextRun,
50 TextStyleRefinement, WeakEntity, Window, anchored, deferred, div, fill, linear_color_stop,
51 linear_gradient, outline, pattern_slash, point, px, quad, relative, size, solid_background,
52 transparent_black,
53};
54use itertools::Itertools;
55use language::{IndentGuideSettings, language_settings::ShowWhitespaceSetting};
56use markdown::Markdown;
57use multi_buffer::{
58 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, ExpandInfo, MultiBufferPoint,
59 MultiBufferRow, RowInfo,
60};
61
62use edit_prediction_types::EditPredictionGranularity;
63
64use project::{
65 DisableAiSettings, Entry, ProjectPath,
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, BufferLineHeight, PlayerColor};
90use ui::utils::ensure_minimum_contrast;
91use ui::{
92 ButtonLike, ContextMenu, Indicator, KeyBinding, POPOVER_Y_PADDING, Tooltip, prelude::*,
93 right_click_menu, scrollbars::ShowScrollbar, text_for_keystroke,
94};
95use unicode_segmentation::UnicodeSegmentation;
96use util::post_inc;
97use util::{RangeExt, ResultExt, debug_panic};
98use workspace::{
99 CollaboratorId, ItemHandle, ItemSettings, OpenInTerminal, OpenTerminal, RevealInProjectPanel,
100 Workspace,
101 item::{BreadcrumbText, Item, ItemBufferKind},
102};
103
104/// Determines what kinds of highlights should be applied to a lines background.
105#[derive(Clone, Copy, Default)]
106struct LineHighlightSpec {
107 selection: bool,
108 breakpoint: bool,
109 _active_stack_frame: bool,
110}
111
112#[derive(Debug)]
113struct SelectionLayout {
114 head: DisplayPoint,
115 cursor_shape: CursorShape,
116 is_newest: bool,
117 is_local: bool,
118 range: Range<DisplayPoint>,
119 active_rows: Range<DisplayRow>,
120 user_name: Option<SharedString>,
121}
122
123struct InlineBlameLayout {
124 element: AnyElement,
125 bounds: Bounds<Pixels>,
126 buffer_id: BufferId,
127 entry: BlameEntry,
128}
129
130impl SelectionLayout {
131 fn new<T: ToPoint + ToDisplayPoint + Clone>(
132 selection: Selection<T>,
133 line_mode: bool,
134 cursor_offset: bool,
135 cursor_shape: CursorShape,
136 map: &DisplaySnapshot,
137 is_newest: bool,
138 is_local: bool,
139 user_name: Option<SharedString>,
140 ) -> Self {
141 let point_selection = selection.map(|p| p.to_point(map.buffer_snapshot()));
142 let display_selection = point_selection.map(|p| p.to_display_point(map));
143 let mut range = display_selection.range();
144 let mut head = display_selection.head();
145 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
146 ..map.next_line_boundary(point_selection.end).1.row();
147
148 // vim visual line mode
149 if line_mode {
150 let point_range = map.expand_to_line(point_selection.range());
151 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
152 }
153
154 // any vim visual mode (including line mode)
155 if cursor_offset && !range.is_empty() && !selection.reversed {
156 if head.column() > 0 {
157 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left);
158 } else if head.row().0 > 0 && head != map.max_point() {
159 head = map.clip_point(
160 DisplayPoint::new(
161 head.row().previous_row(),
162 map.line_len(head.row().previous_row()),
163 ),
164 Bias::Left,
165 );
166 // updating range.end is a no-op unless you're cursor is
167 // on the newline containing a multi-buffer divider
168 // in which case the clip_point may have moved the head up
169 // an additional row.
170 range.end = DisplayPoint::new(head.row().next_row(), 0);
171 active_rows.end = head.row();
172 }
173 }
174
175 Self {
176 head,
177 cursor_shape,
178 is_newest,
179 is_local,
180 range,
181 active_rows,
182 user_name,
183 }
184 }
185}
186
187#[derive(Default)]
188struct RenderBlocksOutput {
189 // We store spacer blocks separately because they paint in a different order
190 // (spacers -> indent guides -> non-spacers)
191 non_spacer_blocks: Vec<BlockLayout>,
192 spacer_blocks: Vec<BlockLayout>,
193 row_block_types: HashMap<DisplayRow, bool>,
194 resized_blocks: Option<HashMap<CustomBlockId, u32>>,
195}
196
197pub struct EditorElement {
198 editor: Entity<Editor>,
199 style: EditorStyle,
200 split_side: Option<SplitSide>,
201}
202
203#[derive(Debug, Clone, Copy, PartialEq, Eq)]
204pub enum SplitSide {
205 Left,
206 Right,
207}
208
209impl EditorElement {
210 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
211
212 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
213 Self {
214 editor: editor.clone(),
215 style,
216 split_side: None,
217 }
218 }
219
220 pub fn set_split_side(&mut self, side: SplitSide) {
221 self.split_side = Some(side);
222 }
223
224 fn should_show_buffer_headers(&self) -> bool {
225 self.split_side.is_none()
226 }
227
228 fn register_actions(&self, window: &mut Window, cx: &mut App) {
229 let editor = &self.editor;
230 editor.update(cx, |editor, cx| {
231 for action in editor.editor_actions.borrow().values() {
232 (action)(editor, window, cx)
233 }
234 });
235
236 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
237 crate::clangd_ext::apply_related_actions(editor, window, cx);
238
239 register_action(editor, window, Editor::open_context_menu);
240 register_action(editor, window, Editor::move_left);
241 register_action(editor, window, Editor::move_right);
242 register_action(editor, window, Editor::move_down);
243 register_action(editor, window, Editor::move_down_by_lines);
244 register_action(editor, window, Editor::select_down_by_lines);
245 register_action(editor, window, Editor::move_up);
246 register_action(editor, window, Editor::move_up_by_lines);
247 register_action(editor, window, Editor::select_up_by_lines);
248 register_action(editor, window, Editor::select_page_down);
249 register_action(editor, window, Editor::select_page_up);
250 register_action(editor, window, Editor::cancel);
251 register_action(editor, window, Editor::newline);
252 register_action(editor, window, Editor::newline_above);
253 register_action(editor, window, Editor::newline_below);
254 register_action(editor, window, Editor::backspace);
255 register_action(editor, window, Editor::blame_hover);
256 register_action(editor, window, Editor::delete);
257 register_action(editor, window, Editor::tab);
258 register_action(editor, window, Editor::next_snippet_tabstop);
259 register_action(editor, window, Editor::previous_snippet_tabstop);
260 register_action(editor, window, Editor::backtab);
261 register_action(editor, window, Editor::indent);
262 register_action(editor, window, Editor::outdent);
263 register_action(editor, window, Editor::autoindent);
264 register_action(editor, window, Editor::delete_line);
265 register_action(editor, window, Editor::join_lines);
266 register_action(editor, window, Editor::sort_lines_by_length);
267 register_action(editor, window, Editor::sort_lines_case_sensitive);
268 register_action(editor, window, Editor::sort_lines_case_insensitive);
269 register_action(editor, window, Editor::reverse_lines);
270 register_action(editor, window, Editor::shuffle_lines);
271 register_action(editor, window, Editor::rotate_selections_forward);
272 register_action(editor, window, Editor::rotate_selections_backward);
273 register_action(editor, window, Editor::convert_indentation_to_spaces);
274 register_action(editor, window, Editor::convert_indentation_to_tabs);
275 register_action(editor, window, Editor::convert_to_upper_case);
276 register_action(editor, window, Editor::convert_to_lower_case);
277 register_action(editor, window, Editor::convert_to_title_case);
278 register_action(editor, window, Editor::convert_to_snake_case);
279 register_action(editor, window, Editor::convert_to_kebab_case);
280 register_action(editor, window, Editor::convert_to_upper_camel_case);
281 register_action(editor, window, Editor::convert_to_lower_camel_case);
282 register_action(editor, window, Editor::convert_to_opposite_case);
283 register_action(editor, window, Editor::convert_to_sentence_case);
284 register_action(editor, window, Editor::toggle_case);
285 register_action(editor, window, Editor::convert_to_rot13);
286 register_action(editor, window, Editor::convert_to_rot47);
287 register_action(editor, window, Editor::delete_to_previous_word_start);
288 register_action(editor, window, Editor::delete_to_previous_subword_start);
289 register_action(editor, window, Editor::delete_to_next_word_end);
290 register_action(editor, window, Editor::delete_to_next_subword_end);
291 register_action(editor, window, Editor::delete_to_beginning_of_line);
292 register_action(editor, window, Editor::delete_to_end_of_line);
293 register_action(editor, window, Editor::cut_to_end_of_line);
294 register_action(editor, window, Editor::duplicate_line_up);
295 register_action(editor, window, Editor::duplicate_line_down);
296 register_action(editor, window, Editor::duplicate_selection);
297 register_action(editor, window, Editor::move_line_up);
298 register_action(editor, window, Editor::move_line_down);
299 register_action(editor, window, Editor::transpose);
300 register_action(editor, window, Editor::rewrap);
301 register_action(editor, window, Editor::cut);
302 register_action(editor, window, Editor::kill_ring_cut);
303 register_action(editor, window, Editor::kill_ring_yank);
304 register_action(editor, window, Editor::copy);
305 register_action(editor, window, Editor::copy_and_trim);
306 register_action(editor, window, Editor::diff_clipboard_with_selection);
307 register_action(editor, window, Editor::paste);
308 register_action(editor, window, Editor::undo);
309 register_action(editor, window, Editor::redo);
310 register_action(editor, window, Editor::move_page_up);
311 register_action(editor, window, Editor::move_page_down);
312 register_action(editor, window, Editor::next_screen);
313 register_action(editor, window, Editor::scroll_cursor_top);
314 register_action(editor, window, Editor::scroll_cursor_center);
315 register_action(editor, window, Editor::scroll_cursor_bottom);
316 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
317 register_action(editor, window, |editor, _: &LineDown, window, cx| {
318 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
319 });
320 register_action(editor, window, |editor, _: &LineUp, window, cx| {
321 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
322 });
323 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
324 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
325 });
326 register_action(
327 editor,
328 window,
329 |editor, HandleInput(text): &HandleInput, window, cx| {
330 if text.is_empty() {
331 return;
332 }
333 editor.handle_input(text, window, cx);
334 },
335 );
336 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
337 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
338 });
339 register_action(editor, window, |editor, _: &PageDown, window, cx| {
340 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
341 });
342 register_action(editor, window, |editor, _: &PageUp, window, cx| {
343 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
344 });
345 register_action(editor, window, Editor::move_to_previous_word_start);
346 register_action(editor, window, Editor::move_to_previous_subword_start);
347 register_action(editor, window, Editor::move_to_next_word_end);
348 register_action(editor, window, Editor::move_to_next_subword_end);
349 register_action(editor, window, Editor::move_to_beginning_of_line);
350 register_action(editor, window, Editor::move_to_end_of_line);
351 register_action(editor, window, Editor::move_to_start_of_paragraph);
352 register_action(editor, window, Editor::move_to_end_of_paragraph);
353 register_action(editor, window, Editor::move_to_beginning);
354 register_action(editor, window, Editor::move_to_end);
355 register_action(editor, window, Editor::move_to_start_of_excerpt);
356 register_action(editor, window, Editor::move_to_start_of_next_excerpt);
357 register_action(editor, window, Editor::move_to_end_of_excerpt);
358 register_action(editor, window, Editor::move_to_end_of_previous_excerpt);
359 register_action(editor, window, Editor::select_up);
360 register_action(editor, window, Editor::select_down);
361 register_action(editor, window, Editor::select_left);
362 register_action(editor, window, Editor::select_right);
363 register_action(editor, window, Editor::select_to_previous_word_start);
364 register_action(editor, window, Editor::select_to_previous_subword_start);
365 register_action(editor, window, Editor::select_to_next_word_end);
366 register_action(editor, window, Editor::select_to_next_subword_end);
367 register_action(editor, window, Editor::select_to_beginning_of_line);
368 register_action(editor, window, Editor::select_to_end_of_line);
369 register_action(editor, window, Editor::select_to_start_of_paragraph);
370 register_action(editor, window, Editor::select_to_end_of_paragraph);
371 register_action(editor, window, Editor::select_to_start_of_excerpt);
372 register_action(editor, window, Editor::select_to_start_of_next_excerpt);
373 register_action(editor, window, Editor::select_to_end_of_excerpt);
374 register_action(editor, window, Editor::select_to_end_of_previous_excerpt);
375 register_action(editor, window, Editor::select_to_beginning);
376 register_action(editor, window, Editor::select_to_end);
377 register_action(editor, window, Editor::select_all);
378 register_action(editor, window, |editor, action, window, cx| {
379 editor.select_all_matches(action, window, cx).log_err();
380 });
381 register_action(editor, window, Editor::select_line);
382 register_action(editor, window, Editor::split_selection_into_lines);
383 register_action(editor, window, Editor::add_selection_above);
384 register_action(editor, window, Editor::add_selection_below);
385 register_action(editor, window, Editor::insert_snippet_at_selections);
386 register_action(editor, window, |editor, action, window, cx| {
387 editor.select_next(action, window, cx).log_err();
388 });
389 register_action(editor, window, |editor, action, window, cx| {
390 editor.select_previous(action, window, cx).log_err();
391 });
392 register_action(editor, window, |editor, action, window, cx| {
393 editor.find_next_match(action, window, cx).log_err();
394 });
395 register_action(editor, window, |editor, action, window, cx| {
396 editor.find_previous_match(action, window, cx).log_err();
397 });
398 register_action(editor, window, Editor::toggle_comments);
399 register_action(editor, window, Editor::select_larger_syntax_node);
400 register_action(editor, window, Editor::select_smaller_syntax_node);
401 register_action(editor, window, Editor::select_next_syntax_node);
402 register_action(editor, window, Editor::select_prev_syntax_node);
403 register_action(
404 editor,
405 window,
406 Editor::select_to_start_of_larger_syntax_node,
407 );
408 register_action(editor, window, Editor::select_to_end_of_larger_syntax_node);
409 register_action(editor, window, Editor::unwrap_syntax_node);
410 register_action(editor, window, Editor::move_to_start_of_larger_syntax_node);
411 register_action(editor, window, Editor::move_to_end_of_larger_syntax_node);
412 register_action(editor, window, Editor::select_enclosing_symbol);
413 register_action(editor, window, Editor::move_to_enclosing_bracket);
414 register_action(editor, window, Editor::undo_selection);
415 register_action(editor, window, Editor::redo_selection);
416 if editor.read(cx).buffer_kind(cx) == ItemBufferKind::Multibuffer {
417 register_action(editor, window, Editor::expand_excerpts);
418 register_action(editor, window, Editor::expand_excerpts_up);
419 register_action(editor, window, Editor::expand_excerpts_down);
420 }
421 register_action(editor, window, Editor::go_to_diagnostic);
422 register_action(editor, window, Editor::go_to_prev_diagnostic);
423 register_action(editor, window, Editor::go_to_next_hunk);
424 register_action(editor, window, Editor::go_to_prev_hunk);
425 register_action(editor, window, Editor::go_to_next_document_highlight);
426 register_action(editor, window, Editor::go_to_prev_document_highlight);
427 register_action(editor, window, |editor, action, window, cx| {
428 editor
429 .go_to_definition(action, window, cx)
430 .detach_and_log_err(cx);
431 });
432 register_action(editor, window, |editor, action, window, cx| {
433 editor
434 .go_to_definition_split(action, window, cx)
435 .detach_and_log_err(cx);
436 });
437 register_action(editor, window, |editor, action, window, cx| {
438 editor
439 .go_to_declaration(action, window, cx)
440 .detach_and_log_err(cx);
441 });
442 register_action(editor, window, |editor, action, window, cx| {
443 editor
444 .go_to_declaration_split(action, window, cx)
445 .detach_and_log_err(cx);
446 });
447 register_action(editor, window, |editor, action, window, cx| {
448 editor
449 .go_to_implementation(action, window, cx)
450 .detach_and_log_err(cx);
451 });
452 register_action(editor, window, |editor, action, window, cx| {
453 editor
454 .go_to_implementation_split(action, window, cx)
455 .detach_and_log_err(cx);
456 });
457 register_action(editor, window, |editor, action, window, cx| {
458 editor
459 .go_to_type_definition(action, window, cx)
460 .detach_and_log_err(cx);
461 });
462 register_action(editor, window, |editor, action, window, cx| {
463 editor
464 .go_to_type_definition_split(action, window, cx)
465 .detach_and_log_err(cx);
466 });
467 register_action(editor, window, Editor::open_url);
468 register_action(editor, window, Editor::open_selected_filename);
469 register_action(editor, window, Editor::fold);
470 register_action(editor, window, Editor::fold_at_level);
471 register_action(editor, window, Editor::fold_at_level_1);
472 register_action(editor, window, Editor::fold_at_level_2);
473 register_action(editor, window, Editor::fold_at_level_3);
474 register_action(editor, window, Editor::fold_at_level_4);
475 register_action(editor, window, Editor::fold_at_level_5);
476 register_action(editor, window, Editor::fold_at_level_6);
477 register_action(editor, window, Editor::fold_at_level_7);
478 register_action(editor, window, Editor::fold_at_level_8);
479 register_action(editor, window, Editor::fold_at_level_9);
480 register_action(editor, window, Editor::fold_all);
481 register_action(editor, window, Editor::fold_function_bodies);
482 register_action(editor, window, Editor::fold_recursive);
483 register_action(editor, window, Editor::toggle_fold);
484 register_action(editor, window, Editor::toggle_fold_recursive);
485 register_action(editor, window, Editor::toggle_fold_all);
486 register_action(editor, window, Editor::unfold_lines);
487 register_action(editor, window, Editor::unfold_recursive);
488 register_action(editor, window, Editor::unfold_all);
489 register_action(editor, window, Editor::fold_selected_ranges);
490 register_action(editor, window, Editor::set_mark);
491 register_action(editor, window, Editor::swap_selection_ends);
492 register_action(editor, window, Editor::show_completions);
493 register_action(editor, window, Editor::show_word_completions);
494 register_action(editor, window, Editor::toggle_code_actions);
495 register_action(editor, window, Editor::open_excerpts);
496 register_action(editor, window, Editor::open_excerpts_in_split);
497 register_action(editor, window, Editor::toggle_soft_wrap);
498 register_action(editor, window, Editor::toggle_tab_bar);
499 register_action(editor, window, Editor::toggle_line_numbers);
500 register_action(editor, window, Editor::toggle_relative_line_numbers);
501 register_action(editor, window, Editor::toggle_indent_guides);
502 register_action(editor, window, Editor::toggle_inlay_hints);
503 register_action(editor, window, Editor::toggle_semantic_highlights);
504 register_action(editor, window, Editor::toggle_edit_predictions);
505 if editor.read(cx).diagnostics_enabled() {
506 register_action(editor, window, Editor::toggle_diagnostics);
507 }
508 if editor.read(cx).inline_diagnostics_enabled() {
509 register_action(editor, window, Editor::toggle_inline_diagnostics);
510 }
511 if editor.read(cx).supports_minimap(cx) {
512 register_action(editor, window, Editor::toggle_minimap);
513 }
514 register_action(editor, window, hover_popover::hover);
515 register_action(editor, window, Editor::reveal_in_finder);
516 register_action(editor, window, Editor::copy_path);
517 register_action(editor, window, Editor::copy_relative_path);
518 register_action(editor, window, Editor::copy_file_name);
519 register_action(editor, window, Editor::copy_file_name_without_extension);
520 register_action(editor, window, Editor::copy_highlight_json);
521 register_action(editor, window, Editor::copy_permalink_to_line);
522 register_action(editor, window, Editor::open_permalink_to_line);
523 register_action(editor, window, Editor::copy_file_location);
524 register_action(editor, window, Editor::toggle_git_blame);
525 register_action(editor, window, Editor::toggle_git_blame_inline);
526 register_action(editor, window, Editor::open_git_blame_commit);
527 register_action(editor, window, Editor::toggle_selected_diff_hunks);
528 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
529 register_action(editor, window, Editor::stage_and_next);
530 register_action(editor, window, Editor::unstage_and_next);
531 register_action(editor, window, Editor::expand_all_diff_hunks);
532 register_action(editor, window, Editor::collapse_all_diff_hunks);
533 register_action(editor, window, Editor::toggle_review_comments_expanded);
534 register_action(editor, window, Editor::submit_diff_review_comment_action);
535 register_action(editor, window, Editor::edit_review_comment);
536 register_action(editor, window, Editor::delete_review_comment);
537 register_action(editor, window, Editor::confirm_edit_review_comment_action);
538 register_action(editor, window, Editor::cancel_edit_review_comment_action);
539 register_action(editor, window, Editor::go_to_previous_change);
540 register_action(editor, window, Editor::go_to_next_change);
541 register_action(editor, window, Editor::go_to_prev_reference);
542 register_action(editor, window, Editor::go_to_next_reference);
543
544 register_action(editor, window, |editor, action, window, cx| {
545 if let Some(task) = editor.format(action, window, cx) {
546 editor.detach_and_notify_err(task, window, cx);
547 } else {
548 cx.propagate();
549 }
550 });
551 register_action(editor, window, |editor, action, window, cx| {
552 if let Some(task) = editor.format_selections(action, window, cx) {
553 editor.detach_and_notify_err(task, window, cx);
554 } else {
555 cx.propagate();
556 }
557 });
558 register_action(editor, window, |editor, action, window, cx| {
559 if let Some(task) = editor.organize_imports(action, window, cx) {
560 editor.detach_and_notify_err(task, window, cx);
561 } else {
562 cx.propagate();
563 }
564 });
565 register_action(editor, window, Editor::restart_language_server);
566 register_action(editor, window, Editor::stop_language_server);
567 register_action(editor, window, Editor::show_character_palette);
568 register_action(editor, window, |editor, action, window, cx| {
569 if let Some(task) = editor.confirm_completion(action, window, cx) {
570 editor.detach_and_notify_err(task, window, cx);
571 } else {
572 cx.propagate();
573 }
574 });
575 register_action(editor, window, |editor, action, window, cx| {
576 if let Some(task) = editor.confirm_completion_replace(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_insert(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.compose_completion(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.confirm_code_action(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.rename(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.confirm_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.find_all_references(action, window, cx) {
619 task.detach_and_log_err(cx);
620 } else {
621 cx.propagate();
622 }
623 });
624 register_action(editor, window, Editor::show_signature_help);
625 register_action(editor, window, Editor::signature_help_prev);
626 register_action(editor, window, Editor::signature_help_next);
627 register_action(editor, window, Editor::show_edit_prediction);
628 register_action(editor, window, Editor::context_menu_first);
629 register_action(editor, window, Editor::context_menu_prev);
630 register_action(editor, window, Editor::context_menu_next);
631 register_action(editor, window, Editor::context_menu_last);
632 register_action(editor, window, Editor::display_cursor_names);
633 register_action(editor, window, Editor::unique_lines_case_insensitive);
634 register_action(editor, window, Editor::unique_lines_case_sensitive);
635 register_action(editor, window, Editor::accept_next_word_edit_prediction);
636 register_action(editor, window, Editor::accept_next_line_edit_prediction);
637 register_action(editor, window, Editor::accept_edit_prediction);
638 register_action(editor, window, Editor::restore_file);
639 register_action(editor, window, Editor::git_restore);
640 register_action(editor, window, Editor::apply_all_diff_hunks);
641 register_action(editor, window, Editor::apply_selected_diff_hunks);
642 register_action(editor, window, Editor::open_active_item_in_terminal);
643 register_action(editor, window, Editor::reload_file);
644 register_action(editor, window, Editor::spawn_nearest_task);
645 register_action(editor, window, Editor::insert_uuid_v4);
646 register_action(editor, window, Editor::insert_uuid_v7);
647 register_action(editor, window, Editor::open_selections_in_multibuffer);
648 register_action(editor, window, Editor::toggle_breakpoint);
649 register_action(editor, window, Editor::edit_log_breakpoint);
650 register_action(editor, window, Editor::enable_breakpoint);
651 register_action(editor, window, Editor::disable_breakpoint);
652 register_action(editor, window, Editor::toggle_read_only);
653 if editor.read(cx).enable_wrap_selections_in_tag(cx) {
654 register_action(editor, window, Editor::wrap_selections_in_tag);
655 }
656 }
657
658 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
659 let position_map = layout.position_map.clone();
660 window.on_key_event({
661 let editor = self.editor.clone();
662 move |event: &ModifiersChangedEvent, phase, window, cx| {
663 if phase != DispatchPhase::Bubble {
664 return;
665 }
666 editor.update(cx, |editor, cx| {
667 let inlay_hint_settings = inlay_hint_settings(
668 editor.selections.newest_anchor().head(),
669 &editor.buffer.read(cx).snapshot(cx),
670 cx,
671 );
672
673 if let Some(inlay_modifiers) = inlay_hint_settings
674 .toggle_on_modifiers_press
675 .as_ref()
676 .filter(|modifiers| modifiers.modified())
677 {
678 editor.refresh_inlay_hints(
679 InlayHintRefreshReason::ModifiersChanged(
680 inlay_modifiers == &event.modifiers,
681 ),
682 cx,
683 );
684 }
685
686 if editor.hover_state.focused(window, cx) {
687 return;
688 }
689
690 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
691 })
692 }
693 });
694 }
695
696 fn mouse_left_down(
697 editor: &mut Editor,
698 event: &MouseDownEvent,
699 position_map: &PositionMap,
700 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
701 window: &mut Window,
702 cx: &mut Context<Editor>,
703 ) {
704 if window.default_prevented() {
705 return;
706 }
707
708 let text_hitbox = &position_map.text_hitbox;
709 let gutter_hitbox = &position_map.gutter_hitbox;
710 let point_for_position = position_map.point_for_position(event.position);
711 let mut click_count = event.click_count;
712 let mut modifiers = event.modifiers;
713
714 if let Some(hovered_hunk) =
715 position_map
716 .display_hunks
717 .iter()
718 .find_map(|(hunk, hunk_hitbox)| match hunk {
719 DisplayDiffHunk::Folded { .. } => None,
720 DisplayDiffHunk::Unfolded {
721 multi_buffer_range, ..
722 } => hunk_hitbox
723 .as_ref()
724 .is_some_and(|hitbox| hitbox.is_hovered(window))
725 .then(|| multi_buffer_range.clone()),
726 })
727 {
728 editor.toggle_single_diff_hunk(hovered_hunk, cx);
729 cx.notify();
730 return;
731 } else if gutter_hitbox.is_hovered(window) {
732 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
733 } else if !text_hitbox.is_hovered(window) {
734 return;
735 }
736
737 if EditorSettings::get_global(cx)
738 .drag_and_drop_selection
739 .enabled
740 && click_count == 1
741 && !modifiers.shift
742 {
743 let newest_anchor = editor.selections.newest_anchor();
744 let snapshot = editor.snapshot(window, cx);
745 let selection = newest_anchor.map(|anchor| anchor.to_display_point(&snapshot));
746 if point_for_position.intersects_selection(&selection) {
747 editor.selection_drag_state = SelectionDragState::ReadyToDrag {
748 selection: newest_anchor.clone(),
749 click_position: event.position,
750 mouse_down_time: Instant::now(),
751 };
752 cx.stop_propagation();
753 return;
754 }
755 }
756
757 let is_singleton = editor.buffer().read(cx).is_singleton();
758
759 if click_count == 2 && !is_singleton {
760 match EditorSettings::get_global(cx).double_click_in_multibuffer {
761 DoubleClickInMultibuffer::Select => {
762 // do nothing special on double click, all selection logic is below
763 }
764 DoubleClickInMultibuffer::Open => {
765 if modifiers.alt {
766 // if double click is made with alt, pretend it's a regular double click without opening and alt,
767 // and run the selection logic.
768 modifiers.alt = false;
769 } else {
770 let scroll_position_row = position_map.scroll_position.y;
771 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
772 / position_map.line_height)
773 as f64
774 + position_map.scroll_position.y)
775 as u32;
776 let multi_buffer_row = position_map
777 .snapshot
778 .display_point_to_point(
779 DisplayPoint::new(DisplayRow(display_row), 0),
780 Bias::Right,
781 )
782 .row;
783 let line_offset_from_top = display_row - scroll_position_row as u32;
784 // if double click is made without alt, open the corresponding excerp
785 editor.open_excerpts_common(
786 Some(JumpData::MultiBufferRow {
787 row: MultiBufferRow(multi_buffer_row),
788 line_offset_from_top,
789 }),
790 false,
791 window,
792 cx,
793 );
794 return;
795 }
796 }
797 }
798 }
799
800 if !is_singleton {
801 let display_row = (ScrollPixelOffset::from(
802 (event.position - gutter_hitbox.bounds.origin).y / position_map.line_height,
803 ) + position_map.scroll_position.y) as u32;
804 let multi_buffer_row = position_map
805 .snapshot
806 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
807 .row;
808 if line_numbers
809 .get(&MultiBufferRow(multi_buffer_row))
810 .is_some_and(|line_layout| {
811 line_layout.segments.iter().any(|segment| {
812 segment
813 .hitbox
814 .as_ref()
815 .is_some_and(|hitbox| hitbox.contains(&event.position))
816 })
817 })
818 {
819 let line_offset_from_top = display_row - position_map.scroll_position.y as u32;
820
821 editor.open_excerpts_common(
822 Some(JumpData::MultiBufferRow {
823 row: MultiBufferRow(multi_buffer_row),
824 line_offset_from_top,
825 }),
826 modifiers.alt,
827 window,
828 cx,
829 );
830 cx.stop_propagation();
831 return;
832 }
833 }
834
835 let position = point_for_position.previous_valid;
836 if let Some(mode) = Editor::columnar_selection_mode(&modifiers, cx) {
837 editor.select(
838 SelectPhase::BeginColumnar {
839 position,
840 reset: match mode {
841 ColumnarMode::FromMouse => true,
842 ColumnarMode::FromSelection => false,
843 },
844 mode,
845 goal_column: point_for_position.exact_unclipped.column(),
846 },
847 window,
848 cx,
849 );
850 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
851 {
852 editor.select(
853 SelectPhase::Extend {
854 position,
855 click_count,
856 },
857 window,
858 cx,
859 );
860 } else {
861 editor.select(
862 SelectPhase::Begin {
863 position,
864 add: Editor::is_alt_pressed(&modifiers, cx),
865 click_count,
866 },
867 window,
868 cx,
869 );
870 }
871 cx.stop_propagation();
872 }
873
874 fn mouse_right_down(
875 editor: &mut Editor,
876 event: &MouseDownEvent,
877 position_map: &PositionMap,
878 window: &mut Window,
879 cx: &mut Context<Editor>,
880 ) {
881 if position_map.gutter_hitbox.is_hovered(window) {
882 let gutter_right_padding = editor.gutter_dimensions.right_padding;
883 let hitbox = &position_map.gutter_hitbox;
884
885 if event.position.x <= hitbox.bounds.right() - gutter_right_padding {
886 let point_for_position = position_map.point_for_position(event.position);
887 editor.set_breakpoint_context_menu(
888 point_for_position.previous_valid.row(),
889 None,
890 event.position,
891 window,
892 cx,
893 );
894 }
895 return;
896 }
897
898 if !position_map.text_hitbox.is_hovered(window) {
899 return;
900 }
901
902 let point_for_position = position_map.point_for_position(event.position);
903 mouse_context_menu::deploy_context_menu(
904 editor,
905 Some(event.position),
906 point_for_position.previous_valid,
907 window,
908 cx,
909 );
910 cx.stop_propagation();
911 }
912
913 fn mouse_middle_down(
914 editor: &mut Editor,
915 event: &MouseDownEvent,
916 position_map: &PositionMap,
917 window: &mut Window,
918 cx: &mut Context<Editor>,
919 ) {
920 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
921 return;
922 }
923
924 let point_for_position = position_map.point_for_position(event.position);
925 let position = point_for_position.previous_valid;
926
927 editor.select(
928 SelectPhase::BeginColumnar {
929 position,
930 reset: true,
931 mode: ColumnarMode::FromMouse,
932 goal_column: point_for_position.exact_unclipped.column(),
933 },
934 window,
935 cx,
936 );
937 }
938
939 fn mouse_up(
940 editor: &mut Editor,
941 event: &MouseUpEvent,
942 position_map: &PositionMap,
943 window: &mut Window,
944 cx: &mut Context<Editor>,
945 ) {
946 // Handle diff review drag completion
947 if editor.diff_review_drag_state.is_some() {
948 editor.end_diff_review_drag(window, cx);
949 cx.stop_propagation();
950 return;
951 }
952
953 let text_hitbox = &position_map.text_hitbox;
954 let end_selection = editor.has_pending_selection();
955 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
956 let point_for_position = position_map.point_for_position(event.position);
957
958 match editor.selection_drag_state {
959 SelectionDragState::ReadyToDrag {
960 selection: _,
961 ref click_position,
962 mouse_down_time: _,
963 } => {
964 if event.position == *click_position {
965 editor.select(
966 SelectPhase::Begin {
967 position: point_for_position.previous_valid,
968 add: false,
969 click_count: 1, // ready to drag state only occurs on click count 1
970 },
971 window,
972 cx,
973 );
974 editor.selection_drag_state = SelectionDragState::None;
975 cx.stop_propagation();
976 return;
977 } else {
978 debug_panic!("drag state can never be in ready state after drag")
979 }
980 }
981 SelectionDragState::Dragging { ref selection, .. } => {
982 let snapshot = editor.snapshot(window, cx);
983 let selection_display = selection.map(|anchor| anchor.to_display_point(&snapshot));
984 if !point_for_position.intersects_selection(&selection_display)
985 && text_hitbox.is_hovered(window)
986 {
987 let is_cut = !(cfg!(target_os = "macos") && event.modifiers.alt
988 || cfg!(not(target_os = "macos")) && event.modifiers.control);
989 editor.move_selection_on_drop(
990 &selection.clone(),
991 point_for_position.previous_valid,
992 is_cut,
993 window,
994 cx,
995 );
996 }
997 editor.selection_drag_state = SelectionDragState::None;
998 cx.stop_propagation();
999 cx.notify();
1000 return;
1001 }
1002 _ => {}
1003 }
1004
1005 if end_selection {
1006 editor.select(SelectPhase::End, window, cx);
1007 }
1008
1009 if end_selection && pending_nonempty_selections {
1010 cx.stop_propagation();
1011 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
1012 && event.button == MouseButton::Middle
1013 {
1014 #[allow(
1015 clippy::collapsible_if,
1016 clippy::needless_return,
1017 reason = "The cfg-block below makes this a false positive"
1018 )]
1019 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
1020 return;
1021 }
1022
1023 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
1024 if EditorSettings::get_global(cx).middle_click_paste {
1025 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
1026 let point_for_position = position_map.point_for_position(event.position);
1027 let position = point_for_position.previous_valid;
1028
1029 editor.select(
1030 SelectPhase::Begin {
1031 position,
1032 add: false,
1033 click_count: 1,
1034 },
1035 window,
1036 cx,
1037 );
1038 editor.insert(&text, window, cx);
1039 }
1040 cx.stop_propagation()
1041 }
1042 }
1043 }
1044
1045 fn click(
1046 editor: &mut Editor,
1047 event: &ClickEvent,
1048 position_map: &PositionMap,
1049 window: &mut Window,
1050 cx: &mut Context<Editor>,
1051 ) {
1052 let text_hitbox = &position_map.text_hitbox;
1053 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
1054
1055 let hovered_link_modifier = Editor::is_cmd_or_ctrl_pressed(&event.modifiers(), cx);
1056 let mouse_down_hovered_link_modifier = if let ClickEvent::Mouse(mouse_event) = event {
1057 Editor::is_cmd_or_ctrl_pressed(&mouse_event.down.modifiers, cx)
1058 } else {
1059 true
1060 };
1061
1062 if let Some(mouse_position) = event.mouse_position()
1063 && !pending_nonempty_selections
1064 && hovered_link_modifier
1065 && mouse_down_hovered_link_modifier
1066 && text_hitbox.is_hovered(window)
1067 && !matches!(
1068 editor.selection_drag_state,
1069 SelectionDragState::Dragging { .. }
1070 )
1071 {
1072 let point = position_map.point_for_position(mouse_position);
1073 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
1074 editor.selection_drag_state = SelectionDragState::None;
1075
1076 cx.stop_propagation();
1077 }
1078 }
1079
1080 fn pressure_click(
1081 editor: &mut Editor,
1082 event: &MousePressureEvent,
1083 position_map: &PositionMap,
1084 window: &mut Window,
1085 cx: &mut Context<Editor>,
1086 ) {
1087 let text_hitbox = &position_map.text_hitbox;
1088 let force_click_possible =
1089 matches!(editor.prev_pressure_stage, Some(PressureStage::Normal))
1090 && event.stage == PressureStage::Force;
1091
1092 editor.prev_pressure_stage = Some(event.stage);
1093
1094 if force_click_possible && text_hitbox.is_hovered(window) {
1095 let point = position_map.point_for_position(event.position);
1096 editor.handle_click_hovered_link(point, event.modifiers, window, cx);
1097 editor.selection_drag_state = SelectionDragState::None;
1098 cx.stop_propagation();
1099 }
1100 }
1101
1102 fn mouse_dragged(
1103 editor: &mut Editor,
1104 event: &MouseMoveEvent,
1105 position_map: &PositionMap,
1106 window: &mut Window,
1107 cx: &mut Context<Editor>,
1108 ) {
1109 if !editor.has_pending_selection()
1110 && matches!(editor.selection_drag_state, SelectionDragState::None)
1111 {
1112 return;
1113 }
1114
1115 let point_for_position = position_map.point_for_position(event.position);
1116 let text_hitbox = &position_map.text_hitbox;
1117
1118 let scroll_delta = {
1119 let text_bounds = text_hitbox.bounds;
1120 let mut scroll_delta = gpui::Point::<f32>::default();
1121 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
1122 let top = text_bounds.origin.y + vertical_margin;
1123 let bottom = text_bounds.bottom_left().y - vertical_margin;
1124 if event.position.y < top {
1125 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
1126 }
1127 if event.position.y > bottom {
1128 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
1129 }
1130
1131 // We need horizontal width of text
1132 let style = editor.style.clone().unwrap_or_default();
1133 let font_id = window.text_system().resolve_font(&style.text.font());
1134 let font_size = style.text.font_size.to_pixels(window.rem_size());
1135 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
1136
1137 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
1138
1139 let scroll_space: Pixels = scroll_margin_x * em_width;
1140
1141 let left = text_bounds.origin.x + scroll_space;
1142 let right = text_bounds.top_right().x - scroll_space;
1143
1144 if event.position.x < left {
1145 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
1146 }
1147 if event.position.x > right {
1148 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
1149 }
1150 scroll_delta
1151 };
1152
1153 if !editor.has_pending_selection() {
1154 let drop_anchor = position_map
1155 .snapshot
1156 .display_point_to_anchor(point_for_position.previous_valid, Bias::Left);
1157 match editor.selection_drag_state {
1158 SelectionDragState::Dragging {
1159 ref mut drop_cursor,
1160 ref mut hide_drop_cursor,
1161 ..
1162 } => {
1163 drop_cursor.start = drop_anchor;
1164 drop_cursor.end = drop_anchor;
1165 *hide_drop_cursor = !text_hitbox.is_hovered(window);
1166 editor.apply_scroll_delta(scroll_delta, window, cx);
1167 cx.notify();
1168 }
1169 SelectionDragState::ReadyToDrag {
1170 ref selection,
1171 ref click_position,
1172 ref mouse_down_time,
1173 } => {
1174 let drag_and_drop_delay = Duration::from_millis(
1175 EditorSettings::get_global(cx)
1176 .drag_and_drop_selection
1177 .delay
1178 .0,
1179 );
1180 if mouse_down_time.elapsed() >= drag_and_drop_delay {
1181 let drop_cursor = Selection {
1182 id: post_inc(&mut editor.selections.next_selection_id()),
1183 start: drop_anchor,
1184 end: drop_anchor,
1185 reversed: false,
1186 goal: SelectionGoal::None,
1187 };
1188 editor.selection_drag_state = SelectionDragState::Dragging {
1189 selection: selection.clone(),
1190 drop_cursor,
1191 hide_drop_cursor: false,
1192 };
1193 editor.apply_scroll_delta(scroll_delta, window, cx);
1194 cx.notify();
1195 } else {
1196 let click_point = position_map.point_for_position(*click_position);
1197 editor.selection_drag_state = SelectionDragState::None;
1198 editor.select(
1199 SelectPhase::Begin {
1200 position: click_point.previous_valid,
1201 add: false,
1202 click_count: 1,
1203 },
1204 window,
1205 cx,
1206 );
1207 editor.select(
1208 SelectPhase::Update {
1209 position: point_for_position.previous_valid,
1210 goal_column: point_for_position.exact_unclipped.column(),
1211 scroll_delta,
1212 },
1213 window,
1214 cx,
1215 );
1216 }
1217 }
1218 _ => {}
1219 }
1220 } else {
1221 editor.select(
1222 SelectPhase::Update {
1223 position: point_for_position.previous_valid,
1224 goal_column: point_for_position.exact_unclipped.column(),
1225 scroll_delta,
1226 },
1227 window,
1228 cx,
1229 );
1230 }
1231 }
1232
1233 pub(crate) fn mouse_moved(
1234 editor: &mut Editor,
1235 event: &MouseMoveEvent,
1236 position_map: &PositionMap,
1237 split_side: Option<SplitSide>,
1238 window: &mut Window,
1239 cx: &mut Context<Editor>,
1240 ) {
1241 let text_hitbox = &position_map.text_hitbox;
1242 let gutter_hitbox = &position_map.gutter_hitbox;
1243 let modifiers = event.modifiers;
1244 let text_hovered = text_hitbox.is_hovered(window);
1245 let gutter_hovered = gutter_hitbox.bounds.contains(&event.position);
1246 editor.set_gutter_hovered(gutter_hovered, cx);
1247 editor.show_mouse_cursor(cx);
1248
1249 let point_for_position = position_map.point_for_position(event.position);
1250 let valid_point = point_for_position.previous_valid;
1251
1252 // Update diff review drag state if we're dragging
1253 if editor.diff_review_drag_state.is_some() {
1254 editor.update_diff_review_drag(valid_point.row(), window, cx);
1255 }
1256
1257 let hovered_diff_control = position_map
1258 .diff_hunk_control_bounds
1259 .iter()
1260 .find(|(_, bounds)| bounds.contains(&event.position))
1261 .map(|(row, _)| *row);
1262
1263 let hovered_diff_hunk_row = if let Some(control_row) = hovered_diff_control {
1264 Some(control_row)
1265 } else if text_hovered {
1266 let current_row = valid_point.row();
1267 position_map.display_hunks.iter().find_map(|(hunk, _)| {
1268 if let DisplayDiffHunk::Unfolded {
1269 display_row_range, ..
1270 } = hunk
1271 {
1272 if display_row_range.contains(¤t_row) {
1273 Some(display_row_range.start)
1274 } else {
1275 None
1276 }
1277 } else {
1278 None
1279 }
1280 })
1281 } else {
1282 None
1283 };
1284
1285 if hovered_diff_hunk_row != editor.hovered_diff_hunk_row {
1286 editor.hovered_diff_hunk_row = hovered_diff_hunk_row;
1287 cx.notify();
1288 }
1289
1290 if let Some((bounds, buffer_id, blame_entry)) = &position_map.inline_blame_bounds {
1291 let mouse_over_inline_blame = bounds.contains(&event.position);
1292 let mouse_over_popover = editor
1293 .inline_blame_popover
1294 .as_ref()
1295 .and_then(|state| state.popover_bounds)
1296 .is_some_and(|bounds| bounds.contains(&event.position));
1297 let keyboard_grace = editor
1298 .inline_blame_popover
1299 .as_ref()
1300 .is_some_and(|state| state.keyboard_grace);
1301
1302 if mouse_over_inline_blame || mouse_over_popover {
1303 editor.show_blame_popover(*buffer_id, blame_entry, event.position, false, cx);
1304 } else if !keyboard_grace {
1305 editor.hide_blame_popover(false, cx);
1306 }
1307 } else {
1308 let keyboard_grace = editor
1309 .inline_blame_popover
1310 .as_ref()
1311 .is_some_and(|state| state.keyboard_grace);
1312 if !keyboard_grace {
1313 editor.hide_blame_popover(false, cx);
1314 }
1315 }
1316
1317 // Handle diff review indicator when gutter is hovered in diff mode with AI enabled
1318 let show_diff_review = editor.show_diff_review_button()
1319 && cx.has_flag::<DiffReviewFeatureFlag>()
1320 && !DisableAiSettings::is_ai_disabled_for_buffer(
1321 editor.buffer.read(cx).as_singleton().as_ref(),
1322 cx,
1323 );
1324
1325 let diff_review_indicator = if gutter_hovered && show_diff_review {
1326 let is_visible = editor
1327 .gutter_diff_review_indicator
1328 .0
1329 .is_some_and(|indicator| indicator.is_active);
1330
1331 if !is_visible {
1332 editor
1333 .gutter_diff_review_indicator
1334 .1
1335 .get_or_insert_with(|| {
1336 cx.spawn(async move |this, cx| {
1337 cx.background_executor()
1338 .timer(Duration::from_millis(200))
1339 .await;
1340
1341 this.update(cx, |this, cx| {
1342 if let Some(indicator) =
1343 this.gutter_diff_review_indicator.0.as_mut()
1344 {
1345 indicator.is_active = true;
1346 cx.notify();
1347 }
1348 })
1349 .ok();
1350 })
1351 });
1352 }
1353
1354 let anchor = position_map
1355 .snapshot
1356 .display_point_to_anchor(valid_point, Bias::Left);
1357 Some(PhantomDiffReviewIndicator {
1358 start: anchor,
1359 end: anchor,
1360 is_active: is_visible,
1361 })
1362 } else {
1363 editor.gutter_diff_review_indicator.1 = None;
1364 None
1365 };
1366
1367 if diff_review_indicator != editor.gutter_diff_review_indicator.0 {
1368 editor.gutter_diff_review_indicator.0 = diff_review_indicator;
1369 cx.notify();
1370 }
1371
1372 // Don't show breakpoint indicator when diff review indicator is active on this row
1373 let is_on_diff_review_button_row = diff_review_indicator.is_some_and(|indicator| {
1374 let start_row = indicator
1375 .start
1376 .to_display_point(&position_map.snapshot.display_snapshot)
1377 .row();
1378 indicator.is_active && start_row == valid_point.row()
1379 });
1380
1381 let breakpoint_indicator = if gutter_hovered
1382 && !is_on_diff_review_button_row
1383 && split_side != Some(SplitSide::Left)
1384 {
1385 let buffer_anchor = position_map
1386 .snapshot
1387 .display_point_to_anchor(valid_point, Bias::Left);
1388
1389 if let Some((buffer_snapshot, file)) = position_map
1390 .snapshot
1391 .buffer_snapshot()
1392 .buffer_for_excerpt(buffer_anchor.excerpt_id)
1393 .and_then(|buffer| buffer.file().map(|file| (buffer, file)))
1394 {
1395 let as_point = text::ToPoint::to_point(&buffer_anchor.text_anchor, buffer_snapshot);
1396
1397 let is_visible = editor
1398 .gutter_breakpoint_indicator
1399 .0
1400 .is_some_and(|indicator| indicator.is_active);
1401
1402 let has_existing_breakpoint =
1403 editor.breakpoint_store.as_ref().is_some_and(|store| {
1404 let Some(project) = &editor.project else {
1405 return false;
1406 };
1407 let Some(abs_path) = project.read(cx).absolute_path(
1408 &ProjectPath {
1409 path: file.path().clone(),
1410 worktree_id: file.worktree_id(cx),
1411 },
1412 cx,
1413 ) else {
1414 return false;
1415 };
1416 store
1417 .read(cx)
1418 .breakpoint_at_row(&abs_path, as_point.row, cx)
1419 .is_some()
1420 });
1421
1422 if !is_visible {
1423 editor.gutter_breakpoint_indicator.1.get_or_insert_with(|| {
1424 cx.spawn(async move |this, cx| {
1425 cx.background_executor()
1426 .timer(Duration::from_millis(200))
1427 .await;
1428
1429 this.update(cx, |this, cx| {
1430 if let Some(indicator) = this.gutter_breakpoint_indicator.0.as_mut()
1431 {
1432 indicator.is_active = true;
1433 cx.notify();
1434 }
1435 })
1436 .ok();
1437 })
1438 });
1439 }
1440
1441 Some(PhantomBreakpointIndicator {
1442 display_row: valid_point.row(),
1443 is_active: is_visible,
1444 collides_with_existing_breakpoint: has_existing_breakpoint,
1445 })
1446 } else {
1447 editor.gutter_breakpoint_indicator.1 = None;
1448 None
1449 }
1450 } else {
1451 editor.gutter_breakpoint_indicator.1 = None;
1452 None
1453 };
1454
1455 if &breakpoint_indicator != &editor.gutter_breakpoint_indicator.0 {
1456 editor.gutter_breakpoint_indicator.0 = breakpoint_indicator;
1457 cx.notify();
1458 }
1459
1460 // Don't trigger hover popover if mouse is hovering over context menu
1461 if text_hovered {
1462 editor.update_hovered_link(
1463 point_for_position,
1464 &position_map.snapshot,
1465 modifiers,
1466 window,
1467 cx,
1468 );
1469
1470 if let Some(point) = point_for_position.as_valid() {
1471 let anchor = position_map
1472 .snapshot
1473 .buffer_snapshot()
1474 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
1475 hover_at(editor, Some(anchor), window, cx);
1476 Self::update_visible_cursor(editor, point, position_map, window, cx);
1477 } else {
1478 editor.update_inlay_link_and_hover_points(
1479 &position_map.snapshot,
1480 point_for_position,
1481 modifiers.secondary(),
1482 modifiers.shift,
1483 window,
1484 cx,
1485 );
1486 }
1487 } else {
1488 editor.hide_hovered_link(cx);
1489 hover_at(editor, None, window, cx);
1490 }
1491 }
1492
1493 fn update_visible_cursor(
1494 editor: &mut Editor,
1495 point: DisplayPoint,
1496 position_map: &PositionMap,
1497 window: &mut Window,
1498 cx: &mut Context<Editor>,
1499 ) {
1500 let snapshot = &position_map.snapshot;
1501 let Some(hub) = editor.collaboration_hub() else {
1502 return;
1503 };
1504 let start = snapshot.display_snapshot.clip_point(
1505 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
1506 Bias::Left,
1507 );
1508 let end = snapshot.display_snapshot.clip_point(
1509 DisplayPoint::new(
1510 point.row(),
1511 (point.column() + 1).min(snapshot.line_len(point.row())),
1512 ),
1513 Bias::Right,
1514 );
1515
1516 let range = snapshot
1517 .buffer_snapshot()
1518 .anchor_before(start.to_point(&snapshot.display_snapshot))
1519 ..snapshot
1520 .buffer_snapshot()
1521 .anchor_after(end.to_point(&snapshot.display_snapshot));
1522
1523 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
1524 return;
1525 };
1526 let key = crate::HoveredCursor {
1527 replica_id: selection.replica_id,
1528 selection_id: selection.selection.id,
1529 };
1530 editor.hovered_cursors.insert(
1531 key.clone(),
1532 cx.spawn_in(window, async move |editor, cx| {
1533 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
1534 editor
1535 .update(cx, |editor, cx| {
1536 editor.hovered_cursors.remove(&key);
1537 cx.notify();
1538 })
1539 .ok();
1540 }),
1541 );
1542 cx.notify()
1543 }
1544
1545 fn layout_selections(
1546 &self,
1547 start_anchor: Anchor,
1548 end_anchor: Anchor,
1549 local_selections: &[Selection<Point>],
1550 snapshot: &EditorSnapshot,
1551 start_row: DisplayRow,
1552 end_row: DisplayRow,
1553 window: &mut Window,
1554 cx: &mut App,
1555 ) -> (
1556 Vec<(PlayerColor, Vec<SelectionLayout>)>,
1557 BTreeMap<DisplayRow, LineHighlightSpec>,
1558 Option<DisplayPoint>,
1559 ) {
1560 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1561 let mut active_rows = BTreeMap::new();
1562 let mut newest_selection_head = None;
1563
1564 let Some(editor_with_selections) = self.editor_with_selections(cx) else {
1565 return (selections, active_rows, newest_selection_head);
1566 };
1567
1568 editor_with_selections.update(cx, |editor, cx| {
1569 if editor.show_local_selections {
1570 let mut layouts = Vec::new();
1571 let newest = editor.selections.newest(&editor.display_snapshot(cx));
1572 for selection in local_selections.iter().cloned() {
1573 let is_empty = selection.start == selection.end;
1574 let is_newest = selection == newest;
1575
1576 let layout = SelectionLayout::new(
1577 selection,
1578 editor.selections.line_mode(),
1579 editor.cursor_offset_on_selection,
1580 editor.cursor_shape,
1581 &snapshot.display_snapshot,
1582 is_newest,
1583 editor.leader_id.is_none(),
1584 None,
1585 );
1586 if is_newest {
1587 newest_selection_head = Some(layout.head);
1588 }
1589
1590 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1591 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1592 {
1593 let contains_non_empty_selection = active_rows
1594 .entry(DisplayRow(row))
1595 .or_insert_with(LineHighlightSpec::default);
1596 contains_non_empty_selection.selection |= !is_empty;
1597 }
1598 layouts.push(layout);
1599 }
1600
1601 let mut player = editor.current_user_player_color(cx);
1602 if !editor.is_focused(window) {
1603 const UNFOCUS_EDITOR_SELECTION_OPACITY: f32 = 0.5;
1604 player.selection = player.selection.opacity(UNFOCUS_EDITOR_SELECTION_OPACITY);
1605 }
1606 selections.push((player, layouts));
1607
1608 if let SelectionDragState::Dragging {
1609 ref selection,
1610 ref drop_cursor,
1611 ref hide_drop_cursor,
1612 } = editor.selection_drag_state
1613 && !hide_drop_cursor
1614 && (drop_cursor
1615 .start
1616 .cmp(&selection.start, &snapshot.buffer_snapshot())
1617 .eq(&Ordering::Less)
1618 || drop_cursor
1619 .end
1620 .cmp(&selection.end, &snapshot.buffer_snapshot())
1621 .eq(&Ordering::Greater))
1622 {
1623 let drag_cursor_layout = SelectionLayout::new(
1624 drop_cursor.clone(),
1625 false,
1626 editor.cursor_offset_on_selection,
1627 CursorShape::Bar,
1628 &snapshot.display_snapshot,
1629 false,
1630 false,
1631 None,
1632 );
1633 let absent_color = cx.theme().players().absent();
1634 selections.push((absent_color, vec![drag_cursor_layout]));
1635 }
1636 }
1637
1638 if let Some(collaboration_hub) = &editor.collaboration_hub {
1639 // When following someone, render the local selections in their color.
1640 if let Some(leader_id) = editor.leader_id {
1641 match leader_id {
1642 CollaboratorId::PeerId(peer_id) => {
1643 if let Some(collaborator) =
1644 collaboration_hub.collaborators(cx).get(&peer_id)
1645 && let Some(participant_index) = collaboration_hub
1646 .user_participant_indices(cx)
1647 .get(&collaborator.user_id)
1648 && let Some((local_selection_style, _)) = selections.first_mut()
1649 {
1650 *local_selection_style = cx
1651 .theme()
1652 .players()
1653 .color_for_participant(participant_index.0);
1654 }
1655 }
1656 CollaboratorId::Agent => {
1657 if let Some((local_selection_style, _)) = selections.first_mut() {
1658 *local_selection_style = cx.theme().players().agent();
1659 }
1660 }
1661 }
1662 }
1663
1664 let mut remote_selections = HashMap::default();
1665 for selection in snapshot.remote_selections_in_range(
1666 &(start_anchor..end_anchor),
1667 collaboration_hub.as_ref(),
1668 cx,
1669 ) {
1670 // Don't re-render the leader's selections, since the local selections
1671 // match theirs.
1672 if Some(selection.collaborator_id) == editor.leader_id {
1673 continue;
1674 }
1675 let key = HoveredCursor {
1676 replica_id: selection.replica_id,
1677 selection_id: selection.selection.id,
1678 };
1679
1680 let is_shown =
1681 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1682
1683 remote_selections
1684 .entry(selection.replica_id)
1685 .or_insert((selection.color, Vec::new()))
1686 .1
1687 .push(SelectionLayout::new(
1688 selection.selection,
1689 selection.line_mode,
1690 editor.cursor_offset_on_selection,
1691 selection.cursor_shape,
1692 &snapshot.display_snapshot,
1693 false,
1694 false,
1695 if is_shown { selection.user_name } else { None },
1696 ));
1697 }
1698
1699 selections.extend(remote_selections.into_values());
1700 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1701 let cursor_offset_on_selection = editor.cursor_offset_on_selection;
1702
1703 let layouts = snapshot
1704 .buffer_snapshot()
1705 .selections_in_range(&(start_anchor..end_anchor), true)
1706 .map(move |(_, line_mode, cursor_shape, selection)| {
1707 SelectionLayout::new(
1708 selection,
1709 line_mode,
1710 cursor_offset_on_selection,
1711 cursor_shape,
1712 &snapshot.display_snapshot,
1713 false,
1714 false,
1715 None,
1716 )
1717 })
1718 .collect::<Vec<_>>();
1719 let player = editor.current_user_player_color(cx);
1720 selections.push((player, layouts));
1721 }
1722 });
1723
1724 #[cfg(debug_assertions)]
1725 Self::layout_debug_ranges(
1726 &mut selections,
1727 start_anchor..end_anchor,
1728 &snapshot.display_snapshot,
1729 cx,
1730 );
1731
1732 (selections, active_rows, newest_selection_head)
1733 }
1734
1735 fn collect_cursors(
1736 &self,
1737 snapshot: &EditorSnapshot,
1738 cx: &mut App,
1739 ) -> Vec<(DisplayPoint, Hsla)> {
1740 let editor = self.editor.read(cx);
1741 let mut cursors = Vec::new();
1742 let mut skip_local = false;
1743 let mut add_cursor = |anchor: Anchor, color| {
1744 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1745 };
1746 // Remote cursors
1747 if let Some(collaboration_hub) = &editor.collaboration_hub {
1748 for remote_selection in snapshot.remote_selections_in_range(
1749 &(Anchor::min()..Anchor::max()),
1750 collaboration_hub.deref(),
1751 cx,
1752 ) {
1753 add_cursor(
1754 remote_selection.selection.head(),
1755 remote_selection.color.cursor,
1756 );
1757 if Some(remote_selection.collaborator_id) == editor.leader_id {
1758 skip_local = true;
1759 }
1760 }
1761 }
1762 // Local cursors
1763 if !skip_local {
1764 let color = cx.theme().players().local().cursor;
1765 editor
1766 .selections
1767 .disjoint_anchors()
1768 .iter()
1769 .for_each(|selection| {
1770 add_cursor(selection.head(), color);
1771 });
1772 if let Some(ref selection) = editor.selections.pending_anchor() {
1773 add_cursor(selection.head(), color);
1774 }
1775 }
1776 cursors
1777 }
1778
1779 fn layout_visible_cursors(
1780 &self,
1781 snapshot: &EditorSnapshot,
1782 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1783 row_block_types: &HashMap<DisplayRow, bool>,
1784 visible_display_row_range: Range<DisplayRow>,
1785 line_layouts: &[LineWithInvisibles],
1786 text_hitbox: &Hitbox,
1787 content_origin: gpui::Point<Pixels>,
1788 scroll_position: gpui::Point<ScrollOffset>,
1789 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
1790 line_height: Pixels,
1791 em_width: Pixels,
1792 em_advance: Pixels,
1793 autoscroll_containing_element: bool,
1794 redacted_ranges: &[Range<DisplayPoint>],
1795 window: &mut Window,
1796 cx: &mut App,
1797 ) -> Vec<CursorLayout> {
1798 let mut autoscroll_bounds = None;
1799 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1800 let mut cursors = Vec::new();
1801
1802 let show_local_cursors = editor.show_local_cursors(window, cx);
1803
1804 for (player_color, selections) in selections {
1805 for selection in selections {
1806 let cursor_position = selection.head;
1807
1808 let in_range = visible_display_row_range.contains(&cursor_position.row());
1809 if (selection.is_local && !show_local_cursors)
1810 || !in_range
1811 || row_block_types.get(&cursor_position.row()) == Some(&true)
1812 {
1813 continue;
1814 }
1815
1816 let cursor_row_layout = &line_layouts
1817 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1818 let cursor_column = cursor_position.column() as usize;
1819
1820 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column)
1821 + cursor_row_layout
1822 .alignment_offset(self.style.text.text_align, text_hitbox.size.width);
1823 let cursor_next_x = cursor_row_layout.x_for_index(cursor_column + 1)
1824 + cursor_row_layout
1825 .alignment_offset(self.style.text.text_align, text_hitbox.size.width);
1826 let mut cell_width = cursor_next_x - cursor_character_x;
1827 if cell_width == Pixels::ZERO {
1828 cell_width = em_advance;
1829 }
1830
1831 let mut block_width = cell_width;
1832 let mut block_text = None;
1833
1834 let is_cursor_in_redacted_range = redacted_ranges
1835 .iter()
1836 .any(|range| range.start <= cursor_position && cursor_position < range.end);
1837
1838 if selection.cursor_shape == CursorShape::Block && !is_cursor_in_redacted_range
1839 {
1840 if let Some(text) = snapshot.grapheme_at(cursor_position).or_else(|| {
1841 if snapshot.is_empty() {
1842 snapshot.placeholder_text().and_then(|s| {
1843 s.graphemes(true).next().map(|s| s.to_string().into())
1844 })
1845 } else {
1846 None
1847 }
1848 }) {
1849 let is_ascii_whitespace_only =
1850 text.as_ref().chars().all(|c| c.is_ascii_whitespace());
1851 let len = text.len();
1852
1853 let mut font = cursor_row_layout
1854 .font_id_for_index(cursor_column)
1855 .and_then(|cursor_font_id| {
1856 window.text_system().get_font_for_id(cursor_font_id)
1857 })
1858 .unwrap_or(self.style.text.font());
1859 font.features = self.style.text.font_features.clone();
1860
1861 // Invert the text color for the block cursor. Ensure that the text
1862 // color is opaque enough to be visible against the background color.
1863 //
1864 // 0.75 is an arbitrary threshold to determine if the background color is
1865 // opaque enough to use as a text color.
1866 //
1867 // TODO: In the future we should ensure themes have a `text_inverse` color.
1868 let color = if cx.theme().colors().editor_background.a < 0.75 {
1869 match cx.theme().appearance {
1870 Appearance::Dark => Hsla::black(),
1871 Appearance::Light => Hsla::white(),
1872 }
1873 } else {
1874 cx.theme().colors().editor_background
1875 };
1876
1877 let shaped = window.text_system().shape_line(
1878 text,
1879 cursor_row_layout.font_size,
1880 &[TextRun {
1881 len,
1882 font,
1883 color,
1884 ..Default::default()
1885 }],
1886 None,
1887 );
1888 if !is_ascii_whitespace_only {
1889 block_width = block_width.max(shaped.width);
1890 }
1891 block_text = Some(shaped);
1892 }
1893 }
1894
1895 let x = cursor_character_x - scroll_pixel_position.x.into();
1896 let y = ((cursor_position.row().as_f64() - scroll_position.y)
1897 * ScrollPixelOffset::from(line_height))
1898 .into();
1899 if selection.is_newest {
1900 editor.pixel_position_of_newest_cursor = Some(point(
1901 text_hitbox.origin.x + x + block_width / 2.,
1902 text_hitbox.origin.y + y + line_height / 2.,
1903 ));
1904
1905 if autoscroll_containing_element {
1906 let top = text_hitbox.origin.y
1907 + ((cursor_position.row().as_f64() - scroll_position.y - 3.)
1908 .max(0.)
1909 * ScrollPixelOffset::from(line_height))
1910 .into();
1911 let left = text_hitbox.origin.x
1912 + ((cursor_position.column() as ScrollOffset
1913 - scroll_position.x
1914 - 3.)
1915 .max(0.)
1916 * ScrollPixelOffset::from(em_width))
1917 .into();
1918
1919 let bottom = text_hitbox.origin.y
1920 + ((cursor_position.row().as_f64() - scroll_position.y + 4.)
1921 * ScrollPixelOffset::from(line_height))
1922 .into();
1923 let right = text_hitbox.origin.x
1924 + ((cursor_position.column() as ScrollOffset - scroll_position.x
1925 + 4.)
1926 * ScrollPixelOffset::from(em_width))
1927 .into();
1928
1929 autoscroll_bounds =
1930 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1931 }
1932 }
1933
1934 let mut cursor = CursorLayout {
1935 color: player_color.cursor,
1936 block_width,
1937 origin: point(x, y),
1938 line_height,
1939 shape: selection.cursor_shape,
1940 block_text,
1941 cursor_name: None,
1942 };
1943 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1944 string: name,
1945 color: self.style.background,
1946 is_top_row: cursor_position.row().0 == 0,
1947 });
1948 cursor.layout(content_origin, cursor_name, window, cx);
1949 cursors.push(cursor);
1950 }
1951 }
1952
1953 cursors
1954 });
1955
1956 if let Some(bounds) = autoscroll_bounds {
1957 window.request_autoscroll(bounds);
1958 }
1959
1960 cursor_layouts
1961 }
1962
1963 fn layout_scrollbars(
1964 &self,
1965 snapshot: &EditorSnapshot,
1966 scrollbar_layout_information: &ScrollbarLayoutInformation,
1967 content_offset: gpui::Point<Pixels>,
1968 scroll_position: gpui::Point<ScrollOffset>,
1969 non_visible_cursors: bool,
1970 right_margin: Pixels,
1971 editor_width: Pixels,
1972 window: &mut Window,
1973 cx: &mut App,
1974 ) -> Option<EditorScrollbars> {
1975 let show_scrollbars = self.editor.read(cx).show_scrollbars;
1976 if (!show_scrollbars.horizontal && !show_scrollbars.vertical)
1977 || self.style.scrollbar_width.is_zero()
1978 {
1979 return None;
1980 }
1981
1982 // If a drag took place after we started dragging the scrollbar,
1983 // cancel the scrollbar drag.
1984 if cx.has_active_drag() {
1985 self.editor.update(cx, |editor, cx| {
1986 editor.scroll_manager.reset_scrollbar_state(cx)
1987 });
1988 }
1989
1990 let editor_settings = EditorSettings::get_global(cx);
1991 let scrollbar_settings = editor_settings.scrollbar;
1992 let show_scrollbars = match scrollbar_settings.show {
1993 ShowScrollbar::Auto => {
1994 let editor = self.editor.read(cx);
1995 let is_singleton = editor.buffer_kind(cx) == ItemBufferKind::Singleton;
1996 // Git
1997 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot().has_diff_hunks())
1998 ||
1999 // Buffer Search Results
2000 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights(HighlightKey::BufferSearchHighlights))
2001 ||
2002 // Selected Text Occurrences
2003 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights(HighlightKey::SelectedTextHighlight))
2004 ||
2005 // Selected Symbol Occurrences
2006 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights(HighlightKey::DocumentHighlightRead) || editor.has_background_highlights(HighlightKey::DocumentHighlightWrite)))
2007 ||
2008 // Diagnostics
2009 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot().has_diagnostics())
2010 ||
2011 // Cursors out of sight
2012 non_visible_cursors
2013 ||
2014 // Scrollmanager
2015 editor.scroll_manager.scrollbars_visible()
2016 }
2017 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
2018 ShowScrollbar::Always => true,
2019 ShowScrollbar::Never => return None,
2020 };
2021
2022 // The horizontal scrollbar is usually slightly offset to align nicely with
2023 // indent guides. However, this offset is not needed if indent guides are
2024 // disabled for the current editor.
2025 let content_offset = self
2026 .editor
2027 .read(cx)
2028 .show_indent_guides
2029 .is_none_or(|should_show| should_show)
2030 .then_some(content_offset)
2031 .unwrap_or_default();
2032
2033 Some(EditorScrollbars::from_scrollbar_axes(
2034 ScrollbarAxes {
2035 horizontal: scrollbar_settings.axes.horizontal
2036 && self.editor.read(cx).show_scrollbars.horizontal,
2037 vertical: scrollbar_settings.axes.vertical
2038 && self.editor.read(cx).show_scrollbars.vertical,
2039 },
2040 scrollbar_layout_information,
2041 content_offset,
2042 scroll_position,
2043 self.style.scrollbar_width,
2044 right_margin,
2045 editor_width,
2046 show_scrollbars,
2047 self.editor.read(cx).scroll_manager.active_scrollbar_state(),
2048 window,
2049 ))
2050 }
2051
2052 fn layout_minimap(
2053 &self,
2054 snapshot: &EditorSnapshot,
2055 minimap_width: Pixels,
2056 scroll_position: gpui::Point<f64>,
2057 scrollbar_layout_information: &ScrollbarLayoutInformation,
2058 scrollbar_layout: Option<&EditorScrollbars>,
2059 window: &mut Window,
2060 cx: &mut App,
2061 ) -> Option<MinimapLayout> {
2062 let minimap_editor = self.editor.read(cx).minimap().cloned()?;
2063
2064 let minimap_settings = EditorSettings::get_global(cx).minimap;
2065
2066 if minimap_settings.on_active_editor() {
2067 let active_editor = self.editor.read(cx).workspace().and_then(|ws| {
2068 ws.read(cx)
2069 .active_pane()
2070 .read(cx)
2071 .active_item()
2072 .and_then(|i| i.act_as::<Editor>(cx))
2073 });
2074 if active_editor.is_some_and(|e| e != self.editor) {
2075 return None;
2076 }
2077 }
2078
2079 if !snapshot.mode.is_full()
2080 || minimap_width.is_zero()
2081 || matches!(
2082 minimap_settings.show,
2083 ShowMinimap::Auto if scrollbar_layout.is_none_or(|layout| !layout.visible)
2084 )
2085 {
2086 return None;
2087 }
2088
2089 const MINIMAP_AXIS: ScrollbarAxis = ScrollbarAxis::Vertical;
2090
2091 let ScrollbarLayoutInformation {
2092 editor_bounds,
2093 scroll_range,
2094 glyph_grid_cell,
2095 } = scrollbar_layout_information;
2096
2097 let line_height = glyph_grid_cell.height;
2098 let scroll_position = scroll_position.along(MINIMAP_AXIS);
2099
2100 let top_right_anchor = scrollbar_layout
2101 .and_then(|layout| layout.vertical.as_ref())
2102 .map(|vertical_scrollbar| vertical_scrollbar.hitbox.origin)
2103 .unwrap_or_else(|| editor_bounds.top_right());
2104
2105 let thumb_state = self
2106 .editor
2107 .read_with(cx, |editor, _| editor.scroll_manager.minimap_thumb_state());
2108
2109 let show_thumb = match minimap_settings.thumb {
2110 MinimapThumb::Always => true,
2111 MinimapThumb::Hover => thumb_state.is_some(),
2112 };
2113
2114 let minimap_bounds = Bounds::from_corner_and_size(
2115 Corner::TopRight,
2116 top_right_anchor,
2117 size(minimap_width, editor_bounds.size.height),
2118 );
2119 let minimap_line_height = self.get_minimap_line_height(
2120 minimap_editor
2121 .read(cx)
2122 .text_style_refinement
2123 .as_ref()
2124 .and_then(|refinement| refinement.font_size)
2125 .unwrap_or(MINIMAP_FONT_SIZE),
2126 window,
2127 cx,
2128 );
2129 let minimap_height = minimap_bounds.size.height;
2130
2131 let visible_editor_lines = (editor_bounds.size.height / line_height) as f64;
2132 let total_editor_lines = (scroll_range.height / line_height) as f64;
2133 let minimap_lines = (minimap_height / minimap_line_height) as f64;
2134
2135 let minimap_scroll_top = MinimapLayout::calculate_minimap_top_offset(
2136 total_editor_lines,
2137 visible_editor_lines,
2138 minimap_lines,
2139 scroll_position,
2140 );
2141
2142 let layout = ScrollbarLayout::for_minimap(
2143 window.insert_hitbox(minimap_bounds, HitboxBehavior::Normal),
2144 visible_editor_lines,
2145 total_editor_lines,
2146 minimap_line_height,
2147 scroll_position,
2148 minimap_scroll_top,
2149 show_thumb,
2150 )
2151 .with_thumb_state(thumb_state);
2152
2153 minimap_editor.update(cx, |editor, cx| {
2154 editor.set_scroll_position(point(0., minimap_scroll_top), window, cx)
2155 });
2156
2157 // Required for the drop shadow to be visible
2158 const PADDING_OFFSET: Pixels = px(4.);
2159
2160 let mut minimap = div()
2161 .size_full()
2162 .shadow_xs()
2163 .px(PADDING_OFFSET)
2164 .child(minimap_editor)
2165 .into_any_element();
2166
2167 let extended_bounds = minimap_bounds.extend(Edges {
2168 right: PADDING_OFFSET,
2169 left: PADDING_OFFSET,
2170 ..Default::default()
2171 });
2172 minimap.layout_as_root(extended_bounds.size.into(), window, cx);
2173 window.with_absolute_element_offset(extended_bounds.origin, |window| {
2174 minimap.prepaint(window, cx)
2175 });
2176
2177 Some(MinimapLayout {
2178 minimap,
2179 thumb_layout: layout,
2180 thumb_border_style: minimap_settings.thumb_border,
2181 minimap_line_height,
2182 minimap_scroll_top,
2183 max_scroll_top: total_editor_lines,
2184 })
2185 }
2186
2187 fn get_minimap_line_height(
2188 &self,
2189 font_size: AbsoluteLength,
2190 window: &mut Window,
2191 cx: &mut App,
2192 ) -> Pixels {
2193 let rem_size = self.rem_size(cx).unwrap_or(window.rem_size());
2194 let mut text_style = self.style.text.clone();
2195 text_style.font_size = font_size;
2196 text_style.line_height_in_pixels(rem_size)
2197 }
2198
2199 fn get_minimap_width(
2200 &self,
2201 minimap_settings: &Minimap,
2202 scrollbars_shown: bool,
2203 text_width: Pixels,
2204 em_width: Pixels,
2205 font_size: Pixels,
2206 rem_size: Pixels,
2207 cx: &App,
2208 ) -> Option<Pixels> {
2209 if minimap_settings.show == ShowMinimap::Auto && !scrollbars_shown {
2210 return None;
2211 }
2212
2213 let minimap_font_size = self.editor.read_with(cx, |editor, cx| {
2214 editor.minimap().map(|minimap_editor| {
2215 minimap_editor
2216 .read(cx)
2217 .text_style_refinement
2218 .as_ref()
2219 .and_then(|refinement| refinement.font_size)
2220 .unwrap_or(MINIMAP_FONT_SIZE)
2221 })
2222 })?;
2223
2224 let minimap_em_width = em_width * (minimap_font_size.to_pixels(rem_size) / font_size);
2225
2226 let minimap_width = (text_width * MinimapLayout::MINIMAP_WIDTH_PCT)
2227 .min(minimap_em_width * minimap_settings.max_width_columns.get() as f32);
2228
2229 (minimap_width >= minimap_em_width * MinimapLayout::MINIMAP_MIN_WIDTH_COLUMNS)
2230 .then_some(minimap_width)
2231 }
2232
2233 fn prepaint_crease_toggles(
2234 &self,
2235 crease_toggles: &mut [Option<AnyElement>],
2236 line_height: Pixels,
2237 gutter_dimensions: &GutterDimensions,
2238 gutter_settings: crate::editor_settings::Gutter,
2239 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2240 gutter_hitbox: &Hitbox,
2241 window: &mut Window,
2242 cx: &mut App,
2243 ) {
2244 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
2245 if let Some(crease_toggle) = crease_toggle {
2246 debug_assert!(gutter_settings.folds);
2247 let available_space = size(
2248 AvailableSpace::MinContent,
2249 AvailableSpace::Definite(line_height * 0.55),
2250 );
2251 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
2252
2253 let position = point(
2254 gutter_dimensions.width - gutter_dimensions.right_padding,
2255 ix as f32 * line_height
2256 - (scroll_pixel_position.y % ScrollPixelOffset::from(line_height)).into(),
2257 );
2258 let centering_offset = point(
2259 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
2260 (line_height - crease_toggle_size.height) / 2.,
2261 );
2262 let origin = gutter_hitbox.origin + position + centering_offset;
2263 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
2264 }
2265 }
2266 }
2267
2268 fn prepaint_expand_toggles(
2269 &self,
2270 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
2271 window: &mut Window,
2272 cx: &mut App,
2273 ) {
2274 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
2275 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
2276 expand_toggle.layout_as_root(available_space, window, cx);
2277 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
2278 }
2279 }
2280
2281 fn prepaint_crease_trailers(
2282 &self,
2283 trailers: Vec<Option<AnyElement>>,
2284 lines: &[LineWithInvisibles],
2285 line_height: Pixels,
2286 content_origin: gpui::Point<Pixels>,
2287 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2288 em_width: Pixels,
2289 window: &mut Window,
2290 cx: &mut App,
2291 ) -> Vec<Option<CreaseTrailerLayout>> {
2292 trailers
2293 .into_iter()
2294 .enumerate()
2295 .map(|(ix, element)| {
2296 let mut element = element?;
2297 let available_space = size(
2298 AvailableSpace::MinContent,
2299 AvailableSpace::Definite(line_height),
2300 );
2301 let size = element.layout_as_root(available_space, window, cx);
2302
2303 let line = &lines[ix];
2304 let padding = if line.width == Pixels::ZERO {
2305 Pixels::ZERO
2306 } else {
2307 4. * em_width
2308 };
2309 let position = point(
2310 Pixels::from(scroll_pixel_position.x) + line.width + padding,
2311 ix as f32 * line_height
2312 - (scroll_pixel_position.y % ScrollPixelOffset::from(line_height)).into(),
2313 );
2314 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
2315 let origin = content_origin + position + centering_offset;
2316 element.prepaint_as_root(origin, available_space, window, cx);
2317 Some(CreaseTrailerLayout {
2318 element,
2319 bounds: Bounds::new(origin, size),
2320 })
2321 })
2322 .collect()
2323 }
2324
2325 // Folds contained in a hunk are ignored apart from shrinking visual size
2326 // If a fold contains any hunks then that fold line is marked as modified
2327 fn layout_gutter_diff_hunks(
2328 &self,
2329 line_height: Pixels,
2330 gutter_hitbox: &Hitbox,
2331 display_rows: Range<DisplayRow>,
2332 snapshot: &EditorSnapshot,
2333 window: &mut Window,
2334 cx: &mut App,
2335 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
2336 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
2337 let mut display_hunks = snapshot
2338 .display_diff_hunks_for_rows(display_rows, folded_buffers)
2339 .map(|hunk| (hunk, None))
2340 .collect::<Vec<_>>();
2341 let git_gutter_setting = ProjectSettings::get_global(cx).git.git_gutter;
2342 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
2343 for (hunk, hitbox) in &mut display_hunks {
2344 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
2345 let hunk_bounds =
2346 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
2347 *hitbox = Some(window.insert_hitbox(hunk_bounds, HitboxBehavior::BlockMouse));
2348 }
2349 }
2350 }
2351
2352 display_hunks
2353 }
2354
2355 fn layout_inline_diagnostics(
2356 &self,
2357 line_layouts: &[LineWithInvisibles],
2358 crease_trailers: &[Option<CreaseTrailerLayout>],
2359 row_block_types: &HashMap<DisplayRow, bool>,
2360 content_origin: gpui::Point<Pixels>,
2361 scroll_position: gpui::Point<ScrollOffset>,
2362 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2363 edit_prediction_popover_origin: Option<gpui::Point<Pixels>>,
2364 start_row: DisplayRow,
2365 end_row: DisplayRow,
2366 line_height: Pixels,
2367 em_width: Pixels,
2368 style: &EditorStyle,
2369 window: &mut Window,
2370 cx: &mut App,
2371 ) -> HashMap<DisplayRow, AnyElement> {
2372 let max_severity = match self
2373 .editor
2374 .read(cx)
2375 .inline_diagnostics_enabled()
2376 .then(|| {
2377 ProjectSettings::get_global(cx)
2378 .diagnostics
2379 .inline
2380 .max_severity
2381 .unwrap_or_else(|| self.editor.read(cx).diagnostics_max_severity)
2382 .into_lsp()
2383 })
2384 .flatten()
2385 {
2386 Some(max_severity) => max_severity,
2387 None => return HashMap::default(),
2388 };
2389
2390 let active_diagnostics_group =
2391 if let ActiveDiagnostic::Group(group) = &self.editor.read(cx).active_diagnostics {
2392 Some(group.group_id)
2393 } else {
2394 None
2395 };
2396
2397 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
2398 let snapshot = editor.snapshot(window, cx);
2399 editor
2400 .inline_diagnostics
2401 .iter()
2402 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
2403 .filter(|(_, diagnostic)| match active_diagnostics_group {
2404 Some(active_diagnostics_group) => {
2405 // Active diagnostics are all shown in the editor already, no need to display them inline
2406 diagnostic.group_id != active_diagnostics_group
2407 }
2408 None => true,
2409 })
2410 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
2411 .skip_while(|(point, _)| point.row() < start_row)
2412 .take_while(|(point, _)| point.row() < end_row)
2413 .filter(|(point, _)| !row_block_types.contains_key(&point.row()))
2414 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
2415 acc.entry(point.row())
2416 .or_insert_with(Vec::new)
2417 .push(diagnostic);
2418 acc
2419 })
2420 });
2421
2422 if diagnostics_by_rows.is_empty() {
2423 return HashMap::default();
2424 }
2425
2426 let severity_to_color = |sev: &lsp::DiagnosticSeverity| match sev {
2427 &lsp::DiagnosticSeverity::ERROR => Color::Error,
2428 &lsp::DiagnosticSeverity::WARNING => Color::Warning,
2429 &lsp::DiagnosticSeverity::INFORMATION => Color::Info,
2430 &lsp::DiagnosticSeverity::HINT => Color::Hint,
2431 _ => Color::Error,
2432 };
2433
2434 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
2435 let min_x = column_pixels(
2436 &self.style,
2437 ProjectSettings::get_global(cx)
2438 .diagnostics
2439 .inline
2440 .min_column as usize,
2441 window,
2442 );
2443
2444 let mut elements = HashMap::default();
2445 for (row, mut diagnostics) in diagnostics_by_rows {
2446 diagnostics.sort_by_key(|diagnostic| {
2447 (
2448 diagnostic.severity,
2449 std::cmp::Reverse(diagnostic.is_primary),
2450 diagnostic.start.row,
2451 diagnostic.start.column,
2452 )
2453 });
2454
2455 let Some(diagnostic_to_render) = diagnostics
2456 .iter()
2457 .find(|diagnostic| diagnostic.is_primary)
2458 .or_else(|| diagnostics.first())
2459 else {
2460 continue;
2461 };
2462
2463 let pos_y = content_origin.y + line_height * (row.0 as f64 - scroll_position.y) as f32;
2464
2465 let window_ix = row.0.saturating_sub(start_row.0) as usize;
2466 let pos_x = {
2467 let crease_trailer_layout = &crease_trailers[window_ix];
2468 let line_layout = &line_layouts[window_ix];
2469
2470 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
2471 crease_trailer.bounds.right()
2472 } else {
2473 Pixels::from(
2474 ScrollPixelOffset::from(content_origin.x + line_layout.width)
2475 - scroll_pixel_position.x,
2476 )
2477 };
2478
2479 let padded_line = line_end + padding;
2480 let min_start = Pixels::from(
2481 ScrollPixelOffset::from(content_origin.x + min_x) - scroll_pixel_position.x,
2482 );
2483
2484 cmp::max(padded_line, min_start)
2485 };
2486
2487 let behind_edit_prediction_popover = edit_prediction_popover_origin
2488 .as_ref()
2489 .is_some_and(|edit_prediction_popover_origin| {
2490 (pos_y..pos_y + line_height).contains(&edit_prediction_popover_origin.y)
2491 });
2492 let opacity = if behind_edit_prediction_popover {
2493 0.5
2494 } else {
2495 1.0
2496 };
2497
2498 let mut element = h_flex()
2499 .id(("diagnostic", row.0))
2500 .h(line_height)
2501 .w_full()
2502 .px_1()
2503 .rounded_xs()
2504 .opacity(opacity)
2505 .bg(severity_to_color(&diagnostic_to_render.severity)
2506 .color(cx)
2507 .opacity(0.05))
2508 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
2509 .text_sm()
2510 .font(style.text.font())
2511 .child(diagnostic_to_render.message.clone())
2512 .into_any();
2513
2514 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
2515
2516 elements.insert(row, element);
2517 }
2518
2519 elements
2520 }
2521
2522 fn layout_inline_code_actions(
2523 &self,
2524 display_point: DisplayPoint,
2525 content_origin: gpui::Point<Pixels>,
2526 scroll_position: gpui::Point<ScrollOffset>,
2527 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2528 line_height: Pixels,
2529 snapshot: &EditorSnapshot,
2530 window: &mut Window,
2531 cx: &mut App,
2532 ) -> Option<AnyElement> {
2533 // Don't show code actions in split diff view
2534 if self.split_side.is_some() {
2535 return None;
2536 }
2537
2538 if !snapshot
2539 .show_code_actions
2540 .unwrap_or(EditorSettings::get_global(cx).inline_code_actions)
2541 {
2542 return None;
2543 }
2544
2545 let icon_size = ui::IconSize::XSmall;
2546 let mut button = self.editor.update(cx, |editor, cx| {
2547 editor.available_code_actions.as_ref()?;
2548 let active = editor
2549 .context_menu
2550 .borrow()
2551 .as_ref()
2552 .and_then(|menu| {
2553 if let crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2554 deployed_from,
2555 ..
2556 }) = menu
2557 {
2558 deployed_from.as_ref()
2559 } else {
2560 None
2561 }
2562 })
2563 .is_some_and(|source| matches!(source, CodeActionSource::Indicator(..)));
2564 Some(editor.render_inline_code_actions(icon_size, display_point.row(), active, cx))
2565 })?;
2566
2567 let buffer_point = display_point.to_point(&snapshot.display_snapshot);
2568
2569 // do not show code action for folded line
2570 if snapshot.is_line_folded(MultiBufferRow(buffer_point.row)) {
2571 return None;
2572 }
2573
2574 // do not show code action for blank line with cursor
2575 let line_indent = snapshot
2576 .display_snapshot
2577 .buffer_snapshot()
2578 .line_indent_for_row(MultiBufferRow(buffer_point.row));
2579 if line_indent.is_line_blank() {
2580 return None;
2581 }
2582
2583 const INLINE_SLOT_CHAR_LIMIT: u32 = 4;
2584 const MAX_ALTERNATE_DISTANCE: u32 = 8;
2585
2586 let excerpt_id = snapshot
2587 .display_snapshot
2588 .buffer_snapshot()
2589 .excerpt_containing(buffer_point..buffer_point)
2590 .map(|excerpt| excerpt.id());
2591
2592 let is_valid_row = |row_candidate: u32| -> bool {
2593 // move to other row if folded row
2594 if snapshot.is_line_folded(MultiBufferRow(row_candidate)) {
2595 return false;
2596 }
2597 if buffer_point.row == row_candidate {
2598 // move to other row if cursor is in slot
2599 if buffer_point.column < INLINE_SLOT_CHAR_LIMIT {
2600 return false;
2601 }
2602 } else {
2603 let candidate_point = MultiBufferPoint {
2604 row: row_candidate,
2605 column: 0,
2606 };
2607 let candidate_excerpt_id = snapshot
2608 .display_snapshot
2609 .buffer_snapshot()
2610 .excerpt_containing(candidate_point..candidate_point)
2611 .map(|excerpt| excerpt.id());
2612 // move to other row if different excerpt
2613 if excerpt_id != candidate_excerpt_id {
2614 return false;
2615 }
2616 }
2617 let line_indent = snapshot
2618 .display_snapshot
2619 .buffer_snapshot()
2620 .line_indent_for_row(MultiBufferRow(row_candidate));
2621 // use this row if it's blank
2622 if line_indent.is_line_blank() {
2623 true
2624 } else {
2625 // use this row if code starts after slot
2626 let indent_size = snapshot
2627 .display_snapshot
2628 .buffer_snapshot()
2629 .indent_size_for_line(MultiBufferRow(row_candidate));
2630 indent_size.len >= INLINE_SLOT_CHAR_LIMIT
2631 }
2632 };
2633
2634 let new_buffer_row = if is_valid_row(buffer_point.row) {
2635 Some(buffer_point.row)
2636 } else {
2637 let max_row = snapshot.display_snapshot.buffer_snapshot().max_point().row;
2638 (1..=MAX_ALTERNATE_DISTANCE).find_map(|offset| {
2639 let row_above = buffer_point.row.saturating_sub(offset);
2640 let row_below = buffer_point.row + offset;
2641 if row_above != buffer_point.row && is_valid_row(row_above) {
2642 Some(row_above)
2643 } else if row_below <= max_row && is_valid_row(row_below) {
2644 Some(row_below)
2645 } else {
2646 None
2647 }
2648 })
2649 }?;
2650
2651 let new_display_row = snapshot
2652 .display_snapshot
2653 .point_to_display_point(
2654 Point {
2655 row: new_buffer_row,
2656 column: buffer_point.column,
2657 },
2658 text::Bias::Left,
2659 )
2660 .row();
2661
2662 let start_y = content_origin.y
2663 + (((new_display_row.as_f64() - scroll_position.y) as f32) * line_height)
2664 + (line_height / 2.0)
2665 - (icon_size.square(window, cx) / 2.);
2666 let start_x = (ScrollPixelOffset::from(content_origin.x) - scroll_pixel_position.x
2667 + ScrollPixelOffset::from(window.rem_size() * 0.1))
2668 .into();
2669
2670 let absolute_offset = gpui::point(start_x, start_y);
2671 button.layout_as_root(gpui::AvailableSpace::min_size(), window, cx);
2672 button.prepaint_as_root(
2673 absolute_offset,
2674 gpui::AvailableSpace::min_size(),
2675 window,
2676 cx,
2677 );
2678 Some(button)
2679 }
2680
2681 fn layout_inline_blame(
2682 &self,
2683 display_row: DisplayRow,
2684 row_info: &RowInfo,
2685 line_layout: &LineWithInvisibles,
2686 crease_trailer: Option<&CreaseTrailerLayout>,
2687 em_width: Pixels,
2688 content_origin: gpui::Point<Pixels>,
2689 scroll_position: gpui::Point<ScrollOffset>,
2690 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2691 line_height: Pixels,
2692 window: &mut Window,
2693 cx: &mut App,
2694 ) -> Option<InlineBlameLayout> {
2695 if !self
2696 .editor
2697 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
2698 {
2699 return None;
2700 }
2701
2702 let editor = self.editor.read(cx);
2703 let blame = editor.blame.clone()?;
2704 let padding = {
2705 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
2706
2707 let mut padding = ProjectSettings::get_global(cx).git.inline_blame.padding as f32;
2708
2709 if let Some(edit_prediction) = editor.active_edit_prediction.as_ref()
2710 && let EditPrediction::Edit {
2711 display_mode: EditDisplayMode::TabAccept,
2712 ..
2713 } = &edit_prediction.completion
2714 {
2715 padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS
2716 }
2717
2718 padding * em_width
2719 };
2720
2721 let (buffer_id, entry) = blame
2722 .update(cx, |blame, cx| {
2723 blame.blame_for_rows(&[*row_info], cx).next()
2724 })
2725 .flatten()?;
2726
2727 let mut element = render_inline_blame_entry(entry.clone(), &self.style, cx)?;
2728
2729 let start_y =
2730 content_origin.y + line_height * ((display_row.as_f64() - scroll_position.y) as f32);
2731
2732 let start_x = {
2733 let line_end = if let Some(crease_trailer) = crease_trailer {
2734 crease_trailer.bounds.right()
2735 } else {
2736 Pixels::from(
2737 ScrollPixelOffset::from(content_origin.x + line_layout.width)
2738 - scroll_pixel_position.x,
2739 )
2740 };
2741
2742 let padded_line_end = line_end + padding;
2743
2744 let min_column_in_pixels = column_pixels(
2745 &self.style,
2746 ProjectSettings::get_global(cx).git.inline_blame.min_column as usize,
2747 window,
2748 );
2749 let min_start = Pixels::from(
2750 ScrollPixelOffset::from(content_origin.x + min_column_in_pixels)
2751 - scroll_pixel_position.x,
2752 );
2753
2754 cmp::max(padded_line_end, min_start)
2755 };
2756
2757 let absolute_offset = point(start_x, start_y);
2758 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2759 let bounds = Bounds::new(absolute_offset, size);
2760
2761 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
2762
2763 Some(InlineBlameLayout {
2764 element,
2765 bounds,
2766 buffer_id,
2767 entry,
2768 })
2769 }
2770
2771 fn layout_blame_popover(
2772 &self,
2773 editor_snapshot: &EditorSnapshot,
2774 text_hitbox: &Hitbox,
2775 line_height: Pixels,
2776 window: &mut Window,
2777 cx: &mut App,
2778 ) {
2779 if !self.editor.read(cx).inline_blame_popover.is_some() {
2780 return;
2781 }
2782
2783 let Some(blame) = self.editor.read(cx).blame.clone() else {
2784 return;
2785 };
2786 let cursor_point = self
2787 .editor
2788 .read(cx)
2789 .selections
2790 .newest::<language::Point>(&editor_snapshot.display_snapshot)
2791 .head();
2792
2793 let Some((buffer, buffer_point, _)) = editor_snapshot
2794 .buffer_snapshot()
2795 .point_to_buffer_point(cursor_point)
2796 else {
2797 return;
2798 };
2799
2800 let row_info = RowInfo {
2801 buffer_id: Some(buffer.remote_id()),
2802 buffer_row: Some(buffer_point.row),
2803 ..Default::default()
2804 };
2805
2806 let Some((buffer_id, blame_entry)) = blame
2807 .update(cx, |blame, cx| blame.blame_for_rows(&[row_info], cx).next())
2808 .flatten()
2809 else {
2810 return;
2811 };
2812
2813 let Some((popover_state, target_point)) = self.editor.read_with(cx, |editor, _| {
2814 editor
2815 .inline_blame_popover
2816 .as_ref()
2817 .map(|state| (state.popover_state.clone(), state.position))
2818 }) else {
2819 return;
2820 };
2821
2822 let workspace = self
2823 .editor
2824 .read_with(cx, |editor, _| editor.workspace().map(|w| w.downgrade()));
2825
2826 let maybe_element = workspace.and_then(|workspace| {
2827 render_blame_entry_popover(
2828 blame_entry,
2829 popover_state.scroll_handle,
2830 popover_state.commit_message,
2831 popover_state.markdown,
2832 workspace,
2833 &blame,
2834 buffer_id,
2835 window,
2836 cx,
2837 )
2838 });
2839
2840 if let Some(mut element) = maybe_element {
2841 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2842 let overall_height = size.height + HOVER_POPOVER_GAP;
2843 let popover_origin = if target_point.y > overall_height {
2844 point(target_point.x, target_point.y - size.height)
2845 } else {
2846 point(
2847 target_point.x,
2848 target_point.y + line_height + HOVER_POPOVER_GAP,
2849 )
2850 };
2851
2852 let horizontal_offset = (text_hitbox.top_right().x
2853 - POPOVER_RIGHT_OFFSET
2854 - (popover_origin.x + size.width))
2855 .min(Pixels::ZERO);
2856
2857 let origin = point(popover_origin.x + horizontal_offset, popover_origin.y);
2858 let popover_bounds = Bounds::new(origin, size);
2859
2860 self.editor.update(cx, |editor, _| {
2861 if let Some(state) = &mut editor.inline_blame_popover {
2862 state.popover_bounds = Some(popover_bounds);
2863 }
2864 });
2865
2866 window.defer_draw(element, origin, 2);
2867 }
2868 }
2869
2870 fn layout_blame_entries(
2871 &self,
2872 buffer_rows: &[RowInfo],
2873 em_width: Pixels,
2874 scroll_position: gpui::Point<ScrollOffset>,
2875 line_height: Pixels,
2876 gutter_hitbox: &Hitbox,
2877 max_width: Option<Pixels>,
2878 window: &mut Window,
2879 cx: &mut App,
2880 ) -> Option<Vec<AnyElement>> {
2881 if !self
2882 .editor
2883 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
2884 {
2885 return None;
2886 }
2887
2888 let blame = self.editor.read(cx).blame.clone()?;
2889 let workspace = self.editor.read(cx).workspace()?;
2890 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
2891 blame.blame_for_rows(buffer_rows, cx).collect()
2892 });
2893
2894 let width = if let Some(max_width) = max_width {
2895 AvailableSpace::Definite(max_width)
2896 } else {
2897 AvailableSpace::MaxContent
2898 };
2899 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
2900 let start_x = em_width;
2901
2902 let mut last_used_color: Option<(Hsla, Oid)> = None;
2903 let blame_renderer = cx.global::<GlobalBlameRenderer>().0.clone();
2904
2905 let shaped_lines = blamed_rows
2906 .into_iter()
2907 .enumerate()
2908 .flat_map(|(ix, blame_entry)| {
2909 let (buffer_id, blame_entry) = blame_entry?;
2910 let mut element = render_blame_entry(
2911 ix,
2912 &blame,
2913 blame_entry,
2914 &self.style,
2915 &mut last_used_color,
2916 self.editor.clone(),
2917 workspace.clone(),
2918 buffer_id,
2919 &*blame_renderer,
2920 window,
2921 cx,
2922 )?;
2923
2924 let start_y = ix as f32 * line_height
2925 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height));
2926 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
2927
2928 element.prepaint_as_root(
2929 absolute_offset,
2930 size(width, AvailableSpace::MinContent),
2931 window,
2932 cx,
2933 );
2934
2935 Some(element)
2936 })
2937 .collect();
2938
2939 Some(shaped_lines)
2940 }
2941
2942 fn layout_indent_guides(
2943 &self,
2944 content_origin: gpui::Point<Pixels>,
2945 text_origin: gpui::Point<Pixels>,
2946 visible_buffer_range: Range<MultiBufferRow>,
2947 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2948 line_height: Pixels,
2949 snapshot: &DisplaySnapshot,
2950 window: &mut Window,
2951 cx: &mut App,
2952 ) -> Option<Vec<IndentGuideLayout>> {
2953 let indent_guides = self.editor.update(cx, |editor, cx| {
2954 editor.indent_guides(visible_buffer_range, snapshot, cx)
2955 })?;
2956
2957 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
2958 editor
2959 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
2960 .unwrap_or_default()
2961 });
2962
2963 Some(
2964 indent_guides
2965 .into_iter()
2966 .enumerate()
2967 .filter_map(|(i, indent_guide)| {
2968 let single_indent_width =
2969 column_pixels(&self.style, indent_guide.tab_size as usize, window);
2970 let total_width = single_indent_width * indent_guide.depth as f32;
2971 let start_x = Pixels::from(
2972 ScrollOffset::from(content_origin.x + total_width)
2973 - scroll_pixel_position.x,
2974 );
2975 if start_x >= text_origin.x {
2976 let (offset_y, length, display_row_range) =
2977 Self::calculate_indent_guide_bounds(
2978 indent_guide.start_row..indent_guide.end_row,
2979 line_height,
2980 snapshot,
2981 );
2982
2983 let start_y = Pixels::from(
2984 ScrollOffset::from(content_origin.y) + offset_y
2985 - scroll_pixel_position.y,
2986 );
2987
2988 Some(IndentGuideLayout {
2989 origin: point(start_x, start_y),
2990 length,
2991 single_indent_width,
2992 display_row_range,
2993 depth: indent_guide.depth,
2994 active: active_indent_guide_indices.contains(&i),
2995 settings: indent_guide.settings,
2996 })
2997 } else {
2998 None
2999 }
3000 })
3001 .collect(),
3002 )
3003 }
3004
3005 fn depth_zero_indent_guide_padding_for_row(
3006 indent_guides: &[IndentGuideLayout],
3007 row: DisplayRow,
3008 ) -> Pixels {
3009 indent_guides
3010 .iter()
3011 .find(|guide| guide.depth == 0 && guide.display_row_range.contains(&row))
3012 .and_then(|guide| {
3013 guide
3014 .settings
3015 .visible_line_width(guide.active)
3016 .map(|width| px(width as f32 * 2.0))
3017 })
3018 .unwrap_or(px(0.0))
3019 }
3020
3021 fn layout_wrap_guides(
3022 &self,
3023 em_advance: Pixels,
3024 scroll_position: gpui::Point<f64>,
3025 content_origin: gpui::Point<Pixels>,
3026 scrollbar_layout: Option<&EditorScrollbars>,
3027 vertical_scrollbar_width: Pixels,
3028 hitbox: &Hitbox,
3029 window: &Window,
3030 cx: &App,
3031 ) -> SmallVec<[(Pixels, bool); 2]> {
3032 let scroll_left = scroll_position.x as f32 * em_advance;
3033 let content_origin = content_origin.x;
3034 let horizontal_offset = content_origin - scroll_left;
3035 let vertical_scrollbar_width = scrollbar_layout
3036 .and_then(|layout| layout.visible.then_some(vertical_scrollbar_width))
3037 .unwrap_or_default();
3038
3039 self.editor
3040 .read(cx)
3041 .wrap_guides(cx)
3042 .into_iter()
3043 .flat_map(|(guide, active)| {
3044 let wrap_position = column_pixels(&self.style, guide, window);
3045 let wrap_guide_x = wrap_position + horizontal_offset;
3046 let display_wrap_guide = wrap_guide_x >= content_origin
3047 && wrap_guide_x <= hitbox.bounds.right() - vertical_scrollbar_width;
3048
3049 display_wrap_guide.then_some((wrap_guide_x, active))
3050 })
3051 .collect()
3052 }
3053
3054 fn calculate_indent_guide_bounds(
3055 row_range: Range<MultiBufferRow>,
3056 line_height: Pixels,
3057 snapshot: &DisplaySnapshot,
3058 ) -> (f64, gpui::Pixels, Range<DisplayRow>) {
3059 let start_point = Point::new(row_range.start.0, 0);
3060 let end_point = Point::new(row_range.end.0, 0);
3061
3062 let mut row_range = start_point.to_display_point(snapshot).row()
3063 ..end_point.to_display_point(snapshot).row();
3064
3065 let mut prev_line = start_point;
3066 prev_line.row = prev_line.row.saturating_sub(1);
3067 let prev_line = prev_line.to_display_point(snapshot).row();
3068
3069 let mut cons_line = end_point;
3070 cons_line.row += 1;
3071 let cons_line = cons_line.to_display_point(snapshot).row();
3072
3073 let mut offset_y = row_range.start.as_f64() * f64::from(line_height);
3074 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
3075
3076 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
3077 if row_range.end == cons_line {
3078 length += line_height;
3079 }
3080
3081 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
3082 // we want to extend the indent guide to the start of the block.
3083 let mut block_height = 0;
3084 let mut block_offset = 0;
3085 let mut found_excerpt_header = false;
3086 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
3087 if matches!(
3088 block,
3089 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
3090 ) {
3091 found_excerpt_header = true;
3092 break;
3093 }
3094 block_offset += block.height();
3095 block_height += block.height();
3096 }
3097 if !found_excerpt_header {
3098 offset_y -= block_offset as f64 * f64::from(line_height);
3099 length += block_height as f32 * line_height;
3100 row_range = DisplayRow(row_range.start.0.saturating_sub(block_offset))..row_range.end;
3101 }
3102
3103 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
3104 // we want to ensure that the indent guide stops before the excerpt header.
3105 let mut block_height = 0;
3106 let mut found_excerpt_header = false;
3107 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
3108 if matches!(
3109 block,
3110 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
3111 ) {
3112 found_excerpt_header = true;
3113 }
3114 block_height += block.height();
3115 }
3116 if found_excerpt_header {
3117 length -= block_height as f32 * line_height;
3118 } else {
3119 row_range = row_range.start..cons_line;
3120 }
3121
3122 (offset_y, length, row_range)
3123 }
3124
3125 fn layout_breakpoints(
3126 &self,
3127 line_height: Pixels,
3128 range: Range<DisplayRow>,
3129 scroll_position: gpui::Point<ScrollOffset>,
3130 gutter_dimensions: &GutterDimensions,
3131 gutter_hitbox: &Hitbox,
3132 snapshot: &EditorSnapshot,
3133 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
3134 row_infos: &[RowInfo],
3135 window: &mut Window,
3136 cx: &mut App,
3137 ) -> Vec<AnyElement> {
3138 if self.split_side == Some(SplitSide::Left) {
3139 return Vec::new();
3140 }
3141
3142 self.editor.update(cx, |editor, cx| {
3143 breakpoints
3144 .into_iter()
3145 .filter_map(|(display_row, (text_anchor, bp, state))| {
3146 if row_infos
3147 .get((display_row.0.saturating_sub(range.start.0)) as usize)
3148 .is_some_and(|row_info| {
3149 row_info.expand_info.is_some()
3150 || row_info
3151 .diff_status
3152 .is_some_and(|status| status.is_deleted())
3153 })
3154 {
3155 return None;
3156 }
3157
3158 if range.start > display_row || range.end < display_row {
3159 return None;
3160 }
3161
3162 let row =
3163 MultiBufferRow(DisplayPoint::new(display_row, 0).to_point(snapshot).row);
3164 if snapshot.is_line_folded(row) {
3165 return None;
3166 }
3167
3168 let button = editor.render_breakpoint(text_anchor, display_row, &bp, state, cx);
3169
3170 let button = prepaint_gutter_button(
3171 button.into_any_element(),
3172 display_row,
3173 line_height,
3174 gutter_dimensions,
3175 scroll_position,
3176 gutter_hitbox,
3177 window,
3178 cx,
3179 );
3180 Some(button)
3181 })
3182 .collect_vec()
3183 })
3184 }
3185
3186 fn should_render_diff_review_button(
3187 &self,
3188 range: Range<DisplayRow>,
3189 row_infos: &[RowInfo],
3190 snapshot: &EditorSnapshot,
3191 cx: &App,
3192 ) -> Option<(DisplayRow, Option<u32>)> {
3193 if !cx.has_flag::<DiffReviewFeatureFlag>() {
3194 return None;
3195 }
3196
3197 let show_diff_review_button = self.editor.read(cx).show_diff_review_button();
3198 if !show_diff_review_button {
3199 return None;
3200 }
3201
3202 let indicator = self.editor.read(cx).gutter_diff_review_indicator.0?;
3203 if !indicator.is_active {
3204 return None;
3205 }
3206
3207 let display_row = indicator
3208 .start
3209 .to_display_point(&snapshot.display_snapshot)
3210 .row();
3211 let row_index = (display_row.0.saturating_sub(range.start.0)) as usize;
3212
3213 let row_info = row_infos.get(row_index);
3214 if row_info.is_some_and(|row_info| row_info.expand_info.is_some()) {
3215 return None;
3216 }
3217
3218 let buffer_id = row_info.and_then(|info| info.buffer_id);
3219 if buffer_id.is_none() {
3220 return None;
3221 }
3222
3223 let editor = self.editor.read(cx);
3224 if buffer_id.is_some_and(|buffer_id| editor.is_buffer_folded(buffer_id, cx)) {
3225 return None;
3226 }
3227
3228 let buffer_row = row_info.and_then(|info| info.buffer_row);
3229 Some((display_row, buffer_row))
3230 }
3231
3232 #[allow(clippy::too_many_arguments)]
3233 fn layout_run_indicators(
3234 &self,
3235 line_height: Pixels,
3236 range: Range<DisplayRow>,
3237 row_infos: &[RowInfo],
3238 scroll_position: gpui::Point<ScrollOffset>,
3239 gutter_dimensions: &GutterDimensions,
3240 gutter_hitbox: &Hitbox,
3241 snapshot: &EditorSnapshot,
3242 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
3243 window: &mut Window,
3244 cx: &mut App,
3245 ) -> Vec<AnyElement> {
3246 if self.split_side == Some(SplitSide::Left) {
3247 return Vec::new();
3248 }
3249
3250 self.editor.update(cx, |editor, cx| {
3251 let active_task_indicator_row =
3252 // TODO: add edit button on the right side of each row in the context menu
3253 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
3254 deployed_from,
3255 actions,
3256 ..
3257 })) = editor.context_menu.borrow().as_ref()
3258 {
3259 actions
3260 .tasks()
3261 .map(|tasks| tasks.position.to_display_point(snapshot).row())
3262 .or_else(|| match deployed_from {
3263 Some(CodeActionSource::Indicator(row)) => Some(*row),
3264 _ => None,
3265 })
3266 } else {
3267 None
3268 };
3269
3270 let offset_range_start =
3271 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
3272
3273 let offset_range_end =
3274 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
3275
3276 editor
3277 .tasks
3278 .iter()
3279 .filter_map(|(_, tasks)| {
3280 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot());
3281 if multibuffer_point < offset_range_start
3282 || multibuffer_point > offset_range_end
3283 {
3284 return None;
3285 }
3286 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
3287 let buffer_folded = snapshot
3288 .buffer_snapshot()
3289 .buffer_line_for_row(multibuffer_row)
3290 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
3291 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
3292 .unwrap_or(false);
3293 if buffer_folded {
3294 return None;
3295 }
3296
3297 if snapshot.is_line_folded(multibuffer_row) {
3298 // Skip folded indicators, unless it's the starting line of a fold.
3299 if multibuffer_row
3300 .0
3301 .checked_sub(1)
3302 .is_some_and(|previous_row| {
3303 snapshot.is_line_folded(MultiBufferRow(previous_row))
3304 })
3305 {
3306 return None;
3307 }
3308 }
3309
3310 let display_row = multibuffer_point.to_display_point(snapshot).row();
3311 if !range.contains(&display_row) {
3312 return None;
3313 }
3314 if row_infos
3315 .get((display_row - range.start).0 as usize)
3316 .is_some_and(|row_info| row_info.expand_info.is_some())
3317 {
3318 return None;
3319 }
3320
3321 let removed_breakpoint = breakpoints.remove(&display_row);
3322 let button = editor.render_run_indicator(
3323 &self.style,
3324 Some(display_row) == active_task_indicator_row,
3325 display_row,
3326 removed_breakpoint,
3327 cx,
3328 );
3329
3330 let button = prepaint_gutter_button(
3331 button.into_any_element(),
3332 display_row,
3333 line_height,
3334 gutter_dimensions,
3335 scroll_position,
3336 gutter_hitbox,
3337 window,
3338 cx,
3339 );
3340 Some(button)
3341 })
3342 .collect_vec()
3343 })
3344 }
3345
3346 fn layout_expand_toggles(
3347 &self,
3348 gutter_hitbox: &Hitbox,
3349 gutter_dimensions: GutterDimensions,
3350 em_width: Pixels,
3351 line_height: Pixels,
3352 scroll_position: gpui::Point<ScrollOffset>,
3353 buffer_rows: &[RowInfo],
3354 window: &mut Window,
3355 cx: &mut App,
3356 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
3357 if self.editor.read(cx).disable_expand_excerpt_buttons {
3358 return vec![];
3359 }
3360
3361 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
3362
3363 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
3364
3365 let max_line_number_length = self
3366 .editor
3367 .read(cx)
3368 .buffer()
3369 .read(cx)
3370 .snapshot(cx)
3371 .widest_line_number()
3372 .ilog10()
3373 + 1;
3374
3375 let git_gutter_width = Self::gutter_strip_width(line_height)
3376 + gutter_dimensions
3377 .git_blame_entries_width
3378 .unwrap_or_default();
3379 let available_width = gutter_dimensions.left_padding - git_gutter_width;
3380
3381 buffer_rows
3382 .iter()
3383 .enumerate()
3384 .map(|(ix, row_info)| {
3385 let ExpandInfo {
3386 excerpt_id,
3387 direction,
3388 } = row_info.expand_info?;
3389
3390 let icon_name = match direction {
3391 ExpandExcerptDirection::Up => IconName::ExpandUp,
3392 ExpandExcerptDirection::Down => IconName::ExpandDown,
3393 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
3394 };
3395
3396 let editor = self.editor.clone();
3397 let is_wide = max_line_number_length
3398 >= EditorSettings::get_global(cx).gutter.min_line_number_digits as u32
3399 && row_info
3400 .buffer_row
3401 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
3402 || gutter_dimensions.right_padding == px(0.);
3403
3404 let width = if is_wide {
3405 available_width - px(5.)
3406 } else {
3407 available_width + em_width - px(5.)
3408 };
3409
3410 let toggle = IconButton::new(("expand", ix), icon_name)
3411 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
3412 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
3413 .width(width)
3414 .on_click(move |_, window, cx| {
3415 editor.update(cx, |editor, cx| {
3416 editor.expand_excerpt(excerpt_id, direction, window, cx);
3417 });
3418 })
3419 .tooltip(Tooltip::for_action_title(
3420 "Expand Excerpt",
3421 &crate::actions::ExpandExcerpts::default(),
3422 ))
3423 .into_any_element();
3424
3425 let position = point(
3426 git_gutter_width + px(1.),
3427 ix as f32 * line_height
3428 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height))
3429 + px(1.),
3430 );
3431 let origin = gutter_hitbox.origin + position;
3432
3433 Some((toggle, origin))
3434 })
3435 .collect()
3436 }
3437
3438 fn layout_line_numbers(
3439 &self,
3440 gutter_hitbox: Option<&Hitbox>,
3441 gutter_dimensions: GutterDimensions,
3442 line_height: Pixels,
3443 scroll_position: gpui::Point<ScrollOffset>,
3444 rows: Range<DisplayRow>,
3445 buffer_rows: &[RowInfo],
3446 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3447 current_selection_head: Option<DisplayRow>,
3448 snapshot: &EditorSnapshot,
3449 window: &mut Window,
3450 cx: &mut App,
3451 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
3452 let include_line_numbers = snapshot
3453 .show_line_numbers
3454 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
3455 if !include_line_numbers {
3456 return Arc::default();
3457 }
3458
3459 let relative = self.editor.read(cx).relative_line_numbers(cx);
3460
3461 let relative_line_numbers_enabled = relative.enabled();
3462 let relative_rows = if relative_line_numbers_enabled
3463 && let Some(current_selection_head) = current_selection_head
3464 {
3465 snapshot.calculate_relative_line_numbers(
3466 &rows,
3467 current_selection_head,
3468 relative.wrapped(),
3469 )
3470 } else {
3471 Default::default()
3472 };
3473
3474 let mut line_number = String::new();
3475 let segments = buffer_rows.iter().enumerate().flat_map(|(ix, row_info)| {
3476 let display_row = DisplayRow(rows.start.0 + ix as u32);
3477 line_number.clear();
3478 let non_relative_number = if relative.wrapped() {
3479 row_info.buffer_row.or(row_info.wrapped_buffer_row)? + 1
3480 } else {
3481 row_info.buffer_row? + 1
3482 };
3483 let relative_number = relative_rows.get(&display_row);
3484 if !(relative_line_numbers_enabled && relative_number.is_some())
3485 && !snapshot.number_deleted_lines
3486 && row_info
3487 .diff_status
3488 .is_some_and(|status| status.is_deleted())
3489 {
3490 return None;
3491 }
3492
3493 let number = relative_number.unwrap_or(&non_relative_number);
3494 write!(&mut line_number, "{number}").unwrap();
3495
3496 let color = active_rows
3497 .get(&display_row)
3498 .map(|spec| {
3499 if spec.breakpoint {
3500 cx.theme().colors().debugger_accent
3501 } else {
3502 cx.theme().colors().editor_active_line_number
3503 }
3504 })
3505 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
3506 let shaped_line =
3507 self.shape_line_number(SharedString::from(&line_number), color, window);
3508 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
3509 let line_origin = gutter_hitbox.map(|hitbox| {
3510 hitbox.origin
3511 + point(
3512 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
3513 ix as f32 * line_height
3514 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height)),
3515 )
3516 });
3517
3518 #[cfg(not(test))]
3519 let hitbox = line_origin.map(|line_origin| {
3520 window.insert_hitbox(
3521 Bounds::new(line_origin, size(shaped_line.width, line_height)),
3522 HitboxBehavior::Normal,
3523 )
3524 });
3525 #[cfg(test)]
3526 let hitbox = {
3527 let _ = line_origin;
3528 None
3529 };
3530
3531 let segment = LineNumberSegment {
3532 shaped_line,
3533 hitbox,
3534 };
3535
3536 let buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
3537 let multi_buffer_row = MultiBufferRow(buffer_row);
3538
3539 Some((multi_buffer_row, segment))
3540 });
3541
3542 let mut line_numbers: HashMap<MultiBufferRow, LineNumberLayout> = HashMap::default();
3543 for (buffer_row, segment) in segments {
3544 line_numbers
3545 .entry(buffer_row)
3546 .or_insert_with(|| LineNumberLayout {
3547 segments: Default::default(),
3548 })
3549 .segments
3550 .push(segment);
3551 }
3552 Arc::new(line_numbers)
3553 }
3554
3555 fn layout_crease_toggles(
3556 &self,
3557 rows: Range<DisplayRow>,
3558 row_infos: &[RowInfo],
3559 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3560 snapshot: &EditorSnapshot,
3561 window: &mut Window,
3562 cx: &mut App,
3563 ) -> Vec<Option<AnyElement>> {
3564 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
3565 && snapshot.mode.is_full()
3566 && self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
3567 if include_fold_statuses {
3568 row_infos
3569 .iter()
3570 .enumerate()
3571 .map(|(ix, info)| {
3572 if info.expand_info.is_some() {
3573 return None;
3574 }
3575 let row = info.multibuffer_row?;
3576 let display_row = DisplayRow(rows.start.0 + ix as u32);
3577 let active = active_rows.contains_key(&display_row);
3578
3579 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
3580 })
3581 .collect()
3582 } else {
3583 Vec::new()
3584 }
3585 }
3586
3587 fn layout_crease_trailers(
3588 &self,
3589 buffer_rows: impl IntoIterator<Item = RowInfo>,
3590 snapshot: &EditorSnapshot,
3591 window: &mut Window,
3592 cx: &mut App,
3593 ) -> Vec<Option<AnyElement>> {
3594 buffer_rows
3595 .into_iter()
3596 .map(|row_info| {
3597 if row_info.expand_info.is_some() {
3598 return None;
3599 }
3600 if let Some(row) = row_info.multibuffer_row {
3601 snapshot.render_crease_trailer(row, window, cx)
3602 } else {
3603 None
3604 }
3605 })
3606 .collect()
3607 }
3608
3609 fn bg_segments_per_row(
3610 rows: Range<DisplayRow>,
3611 selections: &[(PlayerColor, Vec<SelectionLayout>)],
3612 highlight_ranges: &[(Range<DisplayPoint>, Hsla)],
3613 base_background: Hsla,
3614 ) -> Vec<Vec<(Range<DisplayPoint>, Hsla)>> {
3615 if rows.start >= rows.end {
3616 return Vec::new();
3617 }
3618 if !base_background.is_opaque() {
3619 // We don't actually know what color is behind this editor.
3620 return Vec::new();
3621 }
3622 let highlight_iter = highlight_ranges.iter().cloned();
3623 let selection_iter = selections.iter().flat_map(|(player_color, layouts)| {
3624 let color = player_color.selection;
3625 layouts.iter().filter_map(move |selection_layout| {
3626 if selection_layout.range.start != selection_layout.range.end {
3627 Some((selection_layout.range.clone(), color))
3628 } else {
3629 None
3630 }
3631 })
3632 });
3633 let mut per_row_map = vec![Vec::new(); rows.len()];
3634 for (range, color) in highlight_iter.chain(selection_iter) {
3635 let covered_rows = if range.end.column() == 0 {
3636 cmp::max(range.start.row(), rows.start)..cmp::min(range.end.row(), rows.end)
3637 } else {
3638 cmp::max(range.start.row(), rows.start)
3639 ..cmp::min(range.end.row().next_row(), rows.end)
3640 };
3641 for row in covered_rows.iter_rows() {
3642 let seg_start = if row == range.start.row() {
3643 range.start
3644 } else {
3645 DisplayPoint::new(row, 0)
3646 };
3647 let seg_end = if row == range.end.row() && range.end.column() != 0 {
3648 range.end
3649 } else {
3650 DisplayPoint::new(row, u32::MAX)
3651 };
3652 let ix = row.minus(rows.start) as usize;
3653 debug_assert!(row >= rows.start && row < rows.end);
3654 debug_assert!(ix < per_row_map.len());
3655 per_row_map[ix].push((seg_start..seg_end, color));
3656 }
3657 }
3658 for row_segments in per_row_map.iter_mut() {
3659 if row_segments.is_empty() {
3660 continue;
3661 }
3662 let segments = mem::take(row_segments);
3663 let merged = Self::merge_overlapping_ranges(segments, base_background);
3664 *row_segments = merged;
3665 }
3666 per_row_map
3667 }
3668
3669 /// Merge overlapping ranges by splitting at all range boundaries and blending colors where
3670 /// multiple ranges overlap. The result contains non-overlapping ranges ordered from left to right.
3671 ///
3672 /// Expects `start.row() == end.row()` for each range.
3673 fn merge_overlapping_ranges(
3674 ranges: Vec<(Range<DisplayPoint>, Hsla)>,
3675 base_background: Hsla,
3676 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
3677 struct Boundary {
3678 pos: DisplayPoint,
3679 is_start: bool,
3680 index: usize,
3681 color: Hsla,
3682 }
3683
3684 let mut boundaries: SmallVec<[Boundary; 16]> = SmallVec::with_capacity(ranges.len() * 2);
3685 for (index, (range, color)) in ranges.iter().enumerate() {
3686 debug_assert!(
3687 range.start.row() == range.end.row(),
3688 "expects single-row ranges"
3689 );
3690 if range.start < range.end {
3691 boundaries.push(Boundary {
3692 pos: range.start,
3693 is_start: true,
3694 index,
3695 color: *color,
3696 });
3697 boundaries.push(Boundary {
3698 pos: range.end,
3699 is_start: false,
3700 index,
3701 color: *color,
3702 });
3703 }
3704 }
3705
3706 if boundaries.is_empty() {
3707 return Vec::new();
3708 }
3709
3710 boundaries
3711 .sort_unstable_by(|a, b| a.pos.cmp(&b.pos).then_with(|| a.is_start.cmp(&b.is_start)));
3712
3713 let mut processed_ranges: Vec<(Range<DisplayPoint>, Hsla)> = Vec::new();
3714 let mut active_ranges: SmallVec<[(usize, Hsla); 8]> = SmallVec::new();
3715
3716 let mut i = 0;
3717 let mut start_pos = boundaries[0].pos;
3718
3719 let boundaries_len = boundaries.len();
3720 while i < boundaries_len {
3721 let current_boundary_pos = boundaries[i].pos;
3722 if start_pos < current_boundary_pos {
3723 if !active_ranges.is_empty() {
3724 let mut color = base_background;
3725 for &(_, c) in &active_ranges {
3726 color = Hsla::blend(color, c);
3727 }
3728 if let Some((last_range, last_color)) = processed_ranges.last_mut() {
3729 if *last_color == color && last_range.end == start_pos {
3730 last_range.end = current_boundary_pos;
3731 } else {
3732 processed_ranges.push((start_pos..current_boundary_pos, color));
3733 }
3734 } else {
3735 processed_ranges.push((start_pos..current_boundary_pos, color));
3736 }
3737 }
3738 }
3739 while i < boundaries_len && boundaries[i].pos == current_boundary_pos {
3740 let active_range = &boundaries[i];
3741 if active_range.is_start {
3742 let idx = active_range.index;
3743 let pos = active_ranges
3744 .binary_search_by_key(&idx, |(i, _)| *i)
3745 .unwrap_or_else(|p| p);
3746 active_ranges.insert(pos, (idx, active_range.color));
3747 } else {
3748 let idx = active_range.index;
3749 if let Ok(pos) = active_ranges.binary_search_by_key(&idx, |(i, _)| *i) {
3750 active_ranges.remove(pos);
3751 }
3752 }
3753 i += 1;
3754 }
3755 start_pos = current_boundary_pos;
3756 }
3757
3758 processed_ranges
3759 }
3760
3761 fn layout_lines(
3762 rows: Range<DisplayRow>,
3763 snapshot: &EditorSnapshot,
3764 style: &EditorStyle,
3765 editor_width: Pixels,
3766 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3767 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
3768 window: &mut Window,
3769 cx: &mut App,
3770 ) -> Vec<LineWithInvisibles> {
3771 if rows.start >= rows.end {
3772 return Vec::new();
3773 }
3774
3775 // Show the placeholder when the editor is empty
3776 if snapshot.is_empty() {
3777 let font_size = style.text.font_size.to_pixels(window.rem_size());
3778 let placeholder_color = cx.theme().colors().text_placeholder;
3779 let placeholder_text = snapshot.placeholder_text();
3780
3781 let placeholder_lines = placeholder_text
3782 .as_ref()
3783 .map_or(Vec::new(), |text| text.split('\n').collect::<Vec<_>>());
3784
3785 let placeholder_line_count = placeholder_lines.len();
3786
3787 placeholder_lines
3788 .into_iter()
3789 .skip(rows.start.0 as usize)
3790 .chain(iter::repeat(""))
3791 .take(cmp::max(rows.len(), placeholder_line_count))
3792 .map(move |line| {
3793 let run = TextRun {
3794 len: line.len(),
3795 font: style.text.font(),
3796 color: placeholder_color,
3797 ..Default::default()
3798 };
3799 let line = window.text_system().shape_line(
3800 line.to_string().into(),
3801 font_size,
3802 &[run],
3803 None,
3804 );
3805 LineWithInvisibles {
3806 width: line.width,
3807 len: line.len,
3808 fragments: smallvec![LineFragment::Text(line)],
3809 invisibles: Vec::new(),
3810 font_size,
3811 }
3812 })
3813 .collect()
3814 } else {
3815 let use_tree_sitter = !snapshot.semantic_tokens_enabled
3816 || snapshot.use_tree_sitter_for_syntax(rows.start, cx);
3817 let chunks = snapshot.highlighted_chunks(rows.clone(), use_tree_sitter, style);
3818 LineWithInvisibles::from_chunks(
3819 chunks,
3820 style,
3821 MAX_LINE_LEN,
3822 rows.len(),
3823 &snapshot.mode,
3824 editor_width,
3825 is_row_soft_wrapped,
3826 bg_segments_per_row,
3827 window,
3828 cx,
3829 )
3830 }
3831 }
3832
3833 fn prepaint_lines(
3834 &self,
3835 start_row: DisplayRow,
3836 line_layouts: &mut [LineWithInvisibles],
3837 line_height: Pixels,
3838 scroll_position: gpui::Point<ScrollOffset>,
3839 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
3840 content_origin: gpui::Point<Pixels>,
3841 window: &mut Window,
3842 cx: &mut App,
3843 ) -> SmallVec<[AnyElement; 1]> {
3844 let mut line_elements = SmallVec::new();
3845 for (ix, line) in line_layouts.iter_mut().enumerate() {
3846 let row = start_row + DisplayRow(ix as u32);
3847 line.prepaint(
3848 line_height,
3849 scroll_position,
3850 scroll_pixel_position,
3851 row,
3852 content_origin,
3853 &mut line_elements,
3854 window,
3855 cx,
3856 );
3857 }
3858 line_elements
3859 }
3860
3861 fn render_block(
3862 &self,
3863 block: &Block,
3864 available_width: AvailableSpace,
3865 block_id: BlockId,
3866 block_row_start: DisplayRow,
3867 snapshot: &EditorSnapshot,
3868 text_x: Pixels,
3869 rows: &Range<DisplayRow>,
3870 line_layouts: &[LineWithInvisibles],
3871 editor_margins: &EditorMargins,
3872 line_height: Pixels,
3873 em_width: Pixels,
3874 text_hitbox: &Hitbox,
3875 editor_width: Pixels,
3876 scroll_width: &mut Pixels,
3877 resized_blocks: &mut HashMap<CustomBlockId, u32>,
3878 row_block_types: &mut HashMap<DisplayRow, bool>,
3879 selections: &[Selection<Point>],
3880 selected_buffer_ids: &Vec<BufferId>,
3881 latest_selection_anchors: &HashMap<BufferId, Anchor>,
3882 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3883 sticky_header_excerpt_id: Option<ExcerptId>,
3884 indent_guides: &Option<Vec<IndentGuideLayout>>,
3885 block_resize_offset: &mut i32,
3886 window: &mut Window,
3887 cx: &mut App,
3888 ) -> Option<(AnyElement, Size<Pixels>, DisplayRow, Pixels)> {
3889 let mut x_position = None;
3890 let mut element = match block {
3891 Block::Custom(custom) => {
3892 let block_start = custom.start().to_point(&snapshot.buffer_snapshot());
3893 let block_end = custom.end().to_point(&snapshot.buffer_snapshot());
3894 if block.place_near() && snapshot.is_line_folded(MultiBufferRow(block_start.row)) {
3895 return None;
3896 }
3897 let align_to = block_start.to_display_point(snapshot);
3898 let x_and_width = |layout: &LineWithInvisibles| {
3899 Some((
3900 text_x + layout.x_for_index(align_to.column() as usize),
3901 text_x + layout.width,
3902 ))
3903 };
3904 let line_ix = align_to.row().0.checked_sub(rows.start.0);
3905 x_position =
3906 if let Some(layout) = line_ix.and_then(|ix| line_layouts.get(ix as usize)) {
3907 x_and_width(layout)
3908 } else {
3909 x_and_width(&layout_line(
3910 align_to.row(),
3911 snapshot,
3912 &self.style,
3913 editor_width,
3914 is_row_soft_wrapped,
3915 window,
3916 cx,
3917 ))
3918 };
3919
3920 let anchor_x = x_position.unwrap().0;
3921
3922 let selected = selections
3923 .binary_search_by(|selection| {
3924 if selection.end <= block_start {
3925 Ordering::Less
3926 } else if selection.start >= block_end {
3927 Ordering::Greater
3928 } else {
3929 Ordering::Equal
3930 }
3931 })
3932 .is_ok();
3933
3934 div()
3935 .size_full()
3936 .child(
3937 custom.render(&mut BlockContext {
3938 window,
3939 app: cx,
3940 anchor_x,
3941 margins: editor_margins,
3942 line_height,
3943 em_width,
3944 block_id,
3945 height: custom.height.unwrap_or(1),
3946 selected,
3947 max_width: text_hitbox.size.width.max(*scroll_width),
3948 editor_style: &self.style,
3949 indent_guide_padding: indent_guides
3950 .as_ref()
3951 .map(|guides| {
3952 Self::depth_zero_indent_guide_padding_for_row(
3953 guides,
3954 block_row_start,
3955 )
3956 })
3957 .unwrap_or(px(0.0)),
3958 }),
3959 )
3960 .into_any()
3961 }
3962
3963 Block::FoldedBuffer {
3964 first_excerpt,
3965 height,
3966 ..
3967 } => {
3968 let mut result = v_flex().id(block_id).w_full().pr(editor_margins.right);
3969
3970 if self.should_show_buffer_headers() {
3971 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
3972 let jump_data = header_jump_data(
3973 snapshot,
3974 block_row_start,
3975 *height,
3976 first_excerpt,
3977 latest_selection_anchors,
3978 );
3979 result = result.child(self.render_buffer_header(
3980 first_excerpt,
3981 true,
3982 selected,
3983 false,
3984 jump_data,
3985 window,
3986 cx,
3987 ));
3988 } else {
3989 result =
3990 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
3991 }
3992
3993 result.into_any_element()
3994 }
3995
3996 Block::ExcerptBoundary { .. } => {
3997 let color = cx.theme().colors().clone();
3998 let mut result = v_flex().id(block_id).w_full();
3999
4000 result = result.child(
4001 h_flex().relative().child(
4002 div()
4003 .top(line_height / 2.)
4004 .absolute()
4005 .w_full()
4006 .h_px()
4007 .bg(color.border_variant),
4008 ),
4009 );
4010
4011 result.into_any()
4012 }
4013
4014 Block::BufferHeader { excerpt, height } => {
4015 let mut result = v_flex().id(block_id).w_full();
4016
4017 if self.should_show_buffer_headers() {
4018 let jump_data = header_jump_data(
4019 snapshot,
4020 block_row_start,
4021 *height,
4022 excerpt,
4023 latest_selection_anchors,
4024 );
4025
4026 if sticky_header_excerpt_id != Some(excerpt.id) {
4027 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
4028
4029 result = result.child(div().pr(editor_margins.right).child(
4030 self.render_buffer_header(
4031 excerpt, false, selected, false, jump_data, window, cx,
4032 ),
4033 ));
4034 } else {
4035 result =
4036 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
4037 }
4038 } else {
4039 result =
4040 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
4041 }
4042
4043 result.into_any()
4044 }
4045
4046 Block::Spacer { height, .. } => {
4047 let indent_guide_padding = indent_guides
4048 .as_ref()
4049 .map(|guides| {
4050 Self::depth_zero_indent_guide_padding_for_row(guides, block_row_start)
4051 })
4052 .unwrap_or(px(0.0));
4053 Self::render_spacer_block(
4054 block_id,
4055 *height,
4056 line_height,
4057 indent_guide_padding,
4058 window,
4059 cx,
4060 )
4061 }
4062 };
4063
4064 // Discover the element's content height, then round up to the nearest multiple of line height.
4065 let preliminary_size = element.layout_as_root(
4066 size(available_width, AvailableSpace::MinContent),
4067 window,
4068 cx,
4069 );
4070 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
4071 let final_size = if preliminary_size.height == quantized_height {
4072 preliminary_size
4073 } else {
4074 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
4075 };
4076 let mut element_height_in_lines = ((final_size.height / line_height).ceil() as u32).max(1);
4077
4078 let effective_row_start = block_row_start.0 as i32 + *block_resize_offset;
4079 debug_assert!(effective_row_start >= 0);
4080 let mut row = DisplayRow(effective_row_start.max(0) as u32);
4081
4082 let mut x_offset = px(0.);
4083 let mut is_block = true;
4084
4085 if let BlockId::Custom(custom_block_id) = block_id
4086 && block.has_height()
4087 {
4088 if block.place_near()
4089 && let Some((x_target, line_width)) = x_position
4090 {
4091 let margin = em_width * 2;
4092 if line_width + final_size.width + margin
4093 < editor_width + editor_margins.gutter.full_width()
4094 && !row_block_types.contains_key(&(row - 1))
4095 && element_height_in_lines == 1
4096 {
4097 x_offset = line_width + margin;
4098 row = row - 1;
4099 is_block = false;
4100 element_height_in_lines = 0;
4101 row_block_types.insert(row, is_block);
4102 } else {
4103 let max_offset =
4104 editor_width + editor_margins.gutter.full_width() - final_size.width;
4105 let min_offset = (x_target + em_width - final_size.width)
4106 .max(editor_margins.gutter.full_width());
4107 x_offset = x_target.min(max_offset).max(min_offset);
4108 }
4109 };
4110 if element_height_in_lines != block.height() {
4111 *block_resize_offset += element_height_in_lines as i32 - block.height() as i32;
4112 resized_blocks.insert(custom_block_id, element_height_in_lines);
4113 }
4114 }
4115 for i in 0..element_height_in_lines {
4116 row_block_types.insert(row + i, is_block);
4117 }
4118
4119 Some((element, final_size, row, x_offset))
4120 }
4121
4122 /// The spacer pattern period must be an even factor of the line height, so
4123 /// that two consecutive spacer blocks can render contiguously without an
4124 /// obvious break in the pattern.
4125 ///
4126 /// Two consecutive spacers can appear when the other side has a diff hunk
4127 /// and a custom block next to each other (e.g. merge conflict buttons).
4128 fn spacer_pattern_period(line_height: f32, target_height: f32) -> f32 {
4129 let k_approx = line_height / (2.0 * target_height);
4130 let k_floor = (k_approx.floor() as u32).max(1);
4131 let k_ceil = (k_approx.ceil() as u32).max(1);
4132
4133 let size_floor = line_height / (2 * k_floor) as f32;
4134 let size_ceil = line_height / (2 * k_ceil) as f32;
4135
4136 if (size_floor - target_height).abs() <= (size_ceil - target_height).abs() {
4137 size_floor
4138 } else {
4139 size_ceil
4140 }
4141 }
4142
4143 pub fn render_spacer_block(
4144 block_id: BlockId,
4145 block_height: u32,
4146 line_height: Pixels,
4147 indent_guide_padding: Pixels,
4148 window: &mut Window,
4149 cx: &App,
4150 ) -> AnyElement {
4151 let target_size = 16.0;
4152 let scale = window.scale_factor();
4153 let pattern_size =
4154 Self::spacer_pattern_period(f32::from(line_height) * scale, target_size * scale);
4155 let color = cx.theme().colors().panel_background;
4156 let background = pattern_slash(color, 2.0, pattern_size - 2.0);
4157
4158 div()
4159 .id(block_id)
4160 .w_full()
4161 .h((block_height as f32) * line_height)
4162 .flex()
4163 .flex_row()
4164 .child(div().flex_shrink_0().w(indent_guide_padding).h_full())
4165 .child(
4166 div()
4167 .flex_1()
4168 .h_full()
4169 .relative()
4170 .overflow_x_hidden()
4171 .child(
4172 div()
4173 .absolute()
4174 .top_0()
4175 .bottom_0()
4176 .right_0()
4177 .left(-indent_guide_padding)
4178 .bg(background),
4179 ),
4180 )
4181 .into_any()
4182 }
4183
4184 fn render_buffer_header(
4185 &self,
4186 for_excerpt: &ExcerptInfo,
4187 is_folded: bool,
4188 is_selected: bool,
4189 is_sticky: bool,
4190 jump_data: JumpData,
4191 window: &mut Window,
4192 cx: &mut App,
4193 ) -> impl IntoElement {
4194 render_buffer_header(
4195 &self.editor,
4196 for_excerpt,
4197 is_folded,
4198 is_selected,
4199 is_sticky,
4200 jump_data,
4201 window,
4202 cx,
4203 )
4204 }
4205
4206 fn render_blocks(
4207 &self,
4208 rows: Range<DisplayRow>,
4209 snapshot: &EditorSnapshot,
4210 hitbox: &Hitbox,
4211 text_hitbox: &Hitbox,
4212 editor_width: Pixels,
4213 scroll_width: &mut Pixels,
4214 editor_margins: &EditorMargins,
4215 em_width: Pixels,
4216 text_x: Pixels,
4217 line_height: Pixels,
4218 line_layouts: &mut [LineWithInvisibles],
4219 selections: &[Selection<Point>],
4220 selected_buffer_ids: &Vec<BufferId>,
4221 latest_selection_anchors: &HashMap<BufferId, Anchor>,
4222 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4223 sticky_header_excerpt_id: Option<ExcerptId>,
4224 indent_guides: &Option<Vec<IndentGuideLayout>>,
4225 window: &mut Window,
4226 cx: &mut App,
4227 ) -> RenderBlocksOutput {
4228 let (fixed_blocks, non_fixed_blocks) = snapshot
4229 .blocks_in_range(rows.clone())
4230 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
4231
4232 let mut focused_block = self
4233 .editor
4234 .update(cx, |editor, _| editor.take_focused_block());
4235 let mut fixed_block_max_width = Pixels::ZERO;
4236 let mut blocks = Vec::new();
4237 let mut spacer_blocks = Vec::new();
4238 let mut resized_blocks = HashMap::default();
4239 let mut row_block_types = HashMap::default();
4240 let mut block_resize_offset: i32 = 0;
4241
4242 for (row, block) in fixed_blocks {
4243 let block_id = block.id();
4244
4245 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4246 focused_block = None;
4247 }
4248
4249 if let Some((element, element_size, row, x_offset)) = self.render_block(
4250 block,
4251 AvailableSpace::MinContent,
4252 block_id,
4253 row,
4254 snapshot,
4255 text_x,
4256 &rows,
4257 line_layouts,
4258 editor_margins,
4259 line_height,
4260 em_width,
4261 text_hitbox,
4262 editor_width,
4263 scroll_width,
4264 &mut resized_blocks,
4265 &mut row_block_types,
4266 selections,
4267 selected_buffer_ids,
4268 latest_selection_anchors,
4269 is_row_soft_wrapped,
4270 sticky_header_excerpt_id,
4271 indent_guides,
4272 &mut block_resize_offset,
4273 window,
4274 cx,
4275 ) {
4276 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
4277 blocks.push(BlockLayout {
4278 id: block_id,
4279 x_offset,
4280 row: Some(row),
4281 element,
4282 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
4283 style: BlockStyle::Fixed,
4284 overlaps_gutter: true,
4285 is_buffer_header: block.is_buffer_header(),
4286 });
4287 }
4288 }
4289
4290 for (row, block) in non_fixed_blocks {
4291 let style = block.style();
4292 let width = match (style, block.place_near()) {
4293 (_, true) => AvailableSpace::MinContent,
4294 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
4295 (BlockStyle::Flex, _) => hitbox
4296 .size
4297 .width
4298 .max(fixed_block_max_width)
4299 .max(
4300 editor_margins.gutter.width + *scroll_width + editor_margins.extended_right,
4301 )
4302 .into(),
4303 (BlockStyle::Spacer, _) => hitbox
4304 .size
4305 .width
4306 .max(fixed_block_max_width)
4307 .max(*scroll_width + editor_margins.extended_right)
4308 .into(),
4309 (BlockStyle::Fixed, _) => unreachable!(),
4310 };
4311 let block_id = block.id();
4312
4313 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4314 focused_block = None;
4315 }
4316
4317 if let Some((element, element_size, row, x_offset)) = self.render_block(
4318 block,
4319 width,
4320 block_id,
4321 row,
4322 snapshot,
4323 text_x,
4324 &rows,
4325 line_layouts,
4326 editor_margins,
4327 line_height,
4328 em_width,
4329 text_hitbox,
4330 editor_width,
4331 scroll_width,
4332 &mut resized_blocks,
4333 &mut row_block_types,
4334 selections,
4335 selected_buffer_ids,
4336 latest_selection_anchors,
4337 is_row_soft_wrapped,
4338 sticky_header_excerpt_id,
4339 indent_guides,
4340 &mut block_resize_offset,
4341 window,
4342 cx,
4343 ) {
4344 let layout = BlockLayout {
4345 id: block_id,
4346 x_offset,
4347 row: Some(row),
4348 element,
4349 available_space: size(width, element_size.height.into()),
4350 style,
4351 overlaps_gutter: !block.place_near() && style != BlockStyle::Spacer,
4352 is_buffer_header: block.is_buffer_header(),
4353 };
4354 if style == BlockStyle::Spacer {
4355 spacer_blocks.push(layout);
4356 } else {
4357 blocks.push(layout);
4358 }
4359 }
4360 }
4361
4362 if let Some(focused_block) = focused_block
4363 && let Some(focus_handle) = focused_block.focus_handle.upgrade()
4364 && focus_handle.is_focused(window)
4365 && let Some(block) = snapshot.block_for_id(focused_block.id)
4366 {
4367 let style = block.style();
4368 let width = match style {
4369 BlockStyle::Fixed => AvailableSpace::MinContent,
4370 BlockStyle::Flex => {
4371 AvailableSpace::Definite(hitbox.size.width.max(fixed_block_max_width).max(
4372 editor_margins.gutter.width + *scroll_width + editor_margins.extended_right,
4373 ))
4374 }
4375 BlockStyle::Spacer => AvailableSpace::Definite(
4376 hitbox
4377 .size
4378 .width
4379 .max(fixed_block_max_width)
4380 .max(*scroll_width + editor_margins.extended_right),
4381 ),
4382 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
4383 };
4384
4385 if let Some((element, element_size, _, x_offset)) = self.render_block(
4386 &block,
4387 width,
4388 focused_block.id,
4389 rows.end,
4390 snapshot,
4391 text_x,
4392 &rows,
4393 line_layouts,
4394 editor_margins,
4395 line_height,
4396 em_width,
4397 text_hitbox,
4398 editor_width,
4399 scroll_width,
4400 &mut resized_blocks,
4401 &mut row_block_types,
4402 selections,
4403 selected_buffer_ids,
4404 latest_selection_anchors,
4405 is_row_soft_wrapped,
4406 sticky_header_excerpt_id,
4407 indent_guides,
4408 &mut block_resize_offset,
4409 window,
4410 cx,
4411 ) {
4412 blocks.push(BlockLayout {
4413 id: block.id(),
4414 x_offset,
4415 row: None,
4416 element,
4417 available_space: size(width, element_size.height.into()),
4418 style,
4419 overlaps_gutter: true,
4420 is_buffer_header: block.is_buffer_header(),
4421 });
4422 }
4423 }
4424
4425 if resized_blocks.is_empty() {
4426 *scroll_width =
4427 (*scroll_width).max(fixed_block_max_width - editor_margins.gutter.width);
4428 }
4429
4430 RenderBlocksOutput {
4431 non_spacer_blocks: blocks,
4432 spacer_blocks,
4433 row_block_types,
4434 resized_blocks: (!resized_blocks.is_empty()).then_some(resized_blocks),
4435 }
4436 }
4437
4438 fn layout_blocks(
4439 &self,
4440 blocks: &mut Vec<BlockLayout>,
4441 hitbox: &Hitbox,
4442 gutter_hitbox: &Hitbox,
4443 line_height: Pixels,
4444 scroll_position: gpui::Point<ScrollOffset>,
4445 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4446 editor_margins: &EditorMargins,
4447 window: &mut Window,
4448 cx: &mut App,
4449 ) {
4450 for block in blocks {
4451 let mut origin = if let Some(row) = block.row {
4452 hitbox.origin
4453 + point(
4454 block.x_offset,
4455 Pixels::from(
4456 (row.as_f64() - scroll_position.y)
4457 * ScrollPixelOffset::from(line_height),
4458 ),
4459 )
4460 } else {
4461 // Position the block outside the visible area
4462 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
4463 };
4464
4465 if block.style == BlockStyle::Spacer {
4466 origin += point(
4467 gutter_hitbox.size.width + editor_margins.gutter.margin,
4468 Pixels::ZERO,
4469 );
4470 }
4471
4472 if !matches!(block.style, BlockStyle::Sticky) {
4473 origin += point(Pixels::from(-scroll_pixel_position.x), Pixels::ZERO);
4474 }
4475
4476 let focus_handle =
4477 block
4478 .element
4479 .prepaint_as_root(origin, block.available_space, window, cx);
4480
4481 if let Some(focus_handle) = focus_handle {
4482 self.editor.update(cx, |editor, _cx| {
4483 editor.set_focused_block(FocusedBlock {
4484 id: block.id,
4485 focus_handle: focus_handle.downgrade(),
4486 });
4487 });
4488 }
4489 }
4490 }
4491
4492 fn layout_sticky_buffer_header(
4493 &self,
4494 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
4495 scroll_position: gpui::Point<ScrollOffset>,
4496 line_height: Pixels,
4497 right_margin: Pixels,
4498 snapshot: &EditorSnapshot,
4499 hitbox: &Hitbox,
4500 selected_buffer_ids: &Vec<BufferId>,
4501 blocks: &[BlockLayout],
4502 latest_selection_anchors: &HashMap<BufferId, Anchor>,
4503 window: &mut Window,
4504 cx: &mut App,
4505 ) -> AnyElement {
4506 let jump_data = header_jump_data(
4507 snapshot,
4508 DisplayRow(scroll_position.y as u32),
4509 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
4510 excerpt,
4511 latest_selection_anchors,
4512 );
4513
4514 let editor_bg_color = cx.theme().colors().editor_background;
4515
4516 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
4517
4518 let available_width = hitbox.bounds.size.width - right_margin;
4519
4520 let mut header = v_flex()
4521 .w_full()
4522 .relative()
4523 .child(
4524 div()
4525 .w(available_width)
4526 .h(FILE_HEADER_HEIGHT as f32 * line_height)
4527 .bg(linear_gradient(
4528 0.,
4529 linear_color_stop(editor_bg_color.opacity(0.), 0.),
4530 linear_color_stop(editor_bg_color, 0.6),
4531 ))
4532 .absolute()
4533 .top_0(),
4534 )
4535 .child(
4536 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
4537 .into_any_element(),
4538 )
4539 .into_any_element();
4540
4541 let mut origin = hitbox.origin;
4542 // Move floating header up to avoid colliding with the next buffer header.
4543 for block in blocks.iter() {
4544 if !block.is_buffer_header {
4545 continue;
4546 }
4547
4548 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position.y as u32) else {
4549 continue;
4550 };
4551
4552 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
4553 let offset = scroll_position.y - max_row as f64;
4554
4555 if offset > 0.0 {
4556 origin.y -= Pixels::from(offset * ScrollPixelOffset::from(line_height));
4557 }
4558 break;
4559 }
4560
4561 let size = size(
4562 AvailableSpace::Definite(available_width),
4563 AvailableSpace::MinContent,
4564 );
4565
4566 header.prepaint_as_root(origin, size, window, cx);
4567
4568 header
4569 }
4570
4571 fn layout_sticky_headers(
4572 &self,
4573 snapshot: &EditorSnapshot,
4574 editor_width: Pixels,
4575 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4576 line_height: Pixels,
4577 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4578 content_origin: gpui::Point<Pixels>,
4579 gutter_dimensions: &GutterDimensions,
4580 gutter_hitbox: &Hitbox,
4581 text_hitbox: &Hitbox,
4582 relative_line_numbers: RelativeLineNumbers,
4583 relative_to: Option<DisplayRow>,
4584 window: &mut Window,
4585 cx: &mut App,
4586 ) -> Option<StickyHeaders> {
4587 let show_line_numbers = snapshot
4588 .show_line_numbers
4589 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
4590
4591 let rows = Self::sticky_headers(self.editor.read(cx), snapshot);
4592
4593 let mut lines = Vec::<StickyHeaderLine>::new();
4594
4595 for StickyHeader {
4596 item,
4597 sticky_row,
4598 start_point,
4599 offset,
4600 } in rows.into_iter().rev()
4601 {
4602 let line = layout_line(
4603 sticky_row,
4604 snapshot,
4605 &self.style,
4606 editor_width,
4607 is_row_soft_wrapped,
4608 window,
4609 cx,
4610 );
4611
4612 let line_number = show_line_numbers.then(|| {
4613 let start_display_row = start_point.to_display_point(snapshot).row();
4614 let relative_number = relative_to
4615 .filter(|_| relative_line_numbers != RelativeLineNumbers::Disabled)
4616 .map(|base| {
4617 snapshot.relative_line_delta(
4618 base,
4619 start_display_row,
4620 relative_line_numbers == RelativeLineNumbers::Wrapped,
4621 )
4622 });
4623 let number = relative_number
4624 .filter(|&delta| delta != 0)
4625 .map(|delta| delta.unsigned_abs() as u32)
4626 .unwrap_or(start_point.row + 1);
4627 let color = cx.theme().colors().editor_line_number;
4628 self.shape_line_number(SharedString::from(number.to_string()), color, window)
4629 });
4630
4631 lines.push(StickyHeaderLine::new(
4632 sticky_row,
4633 line_height * offset as f32,
4634 line,
4635 line_number,
4636 item.range.start,
4637 line_height,
4638 scroll_pixel_position,
4639 content_origin,
4640 gutter_hitbox,
4641 text_hitbox,
4642 window,
4643 cx,
4644 ));
4645 }
4646
4647 lines.reverse();
4648 if lines.is_empty() {
4649 return None;
4650 }
4651
4652 Some(StickyHeaders {
4653 lines,
4654 gutter_background: cx.theme().colors().editor_gutter_background,
4655 content_background: self.style.background,
4656 gutter_right_padding: gutter_dimensions.right_padding,
4657 })
4658 }
4659
4660 pub(crate) fn sticky_headers(editor: &Editor, snapshot: &EditorSnapshot) -> Vec<StickyHeader> {
4661 let scroll_top = snapshot.scroll_position().y;
4662
4663 let mut end_rows = Vec::<DisplayRow>::new();
4664 let mut rows = Vec::<StickyHeader>::new();
4665
4666 for item in editor.sticky_headers.iter().flatten() {
4667 let start_point = item.range.start.to_point(snapshot.buffer_snapshot());
4668 let end_point = item.range.end.to_point(snapshot.buffer_snapshot());
4669
4670 let sticky_row = snapshot
4671 .display_snapshot
4672 .point_to_display_point(start_point, Bias::Left)
4673 .row();
4674 let end_row = snapshot
4675 .display_snapshot
4676 .point_to_display_point(end_point, Bias::Left)
4677 .row();
4678 let max_sticky_row = end_row.previous_row();
4679 if max_sticky_row <= sticky_row {
4680 continue;
4681 }
4682
4683 while end_rows
4684 .last()
4685 .is_some_and(|&last_end| last_end <= sticky_row)
4686 {
4687 end_rows.pop();
4688 }
4689 let depth = end_rows.len();
4690 let adjusted_scroll_top = scroll_top + depth as f64;
4691
4692 if sticky_row.as_f64() >= adjusted_scroll_top || end_row.as_f64() <= adjusted_scroll_top
4693 {
4694 continue;
4695 }
4696
4697 let max_scroll_offset = max_sticky_row.as_f64() - scroll_top;
4698 let offset = (depth as f64).min(max_scroll_offset);
4699
4700 end_rows.push(end_row);
4701 rows.push(StickyHeader {
4702 item: item.clone(),
4703 sticky_row,
4704 start_point,
4705 offset,
4706 });
4707 }
4708
4709 rows
4710 }
4711
4712 fn layout_cursor_popovers(
4713 &self,
4714 line_height: Pixels,
4715 text_hitbox: &Hitbox,
4716 content_origin: gpui::Point<Pixels>,
4717 right_margin: Pixels,
4718 start_row: DisplayRow,
4719 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4720 line_layouts: &[LineWithInvisibles],
4721 cursor: DisplayPoint,
4722 cursor_point: Point,
4723 style: &EditorStyle,
4724 window: &mut Window,
4725 cx: &mut App,
4726 ) -> Option<ContextMenuLayout> {
4727 let mut min_menu_height = Pixels::ZERO;
4728 let mut max_menu_height = Pixels::ZERO;
4729 let mut height_above_menu = Pixels::ZERO;
4730 let height_below_menu = Pixels::ZERO;
4731 let mut edit_prediction_popover_visible = false;
4732 let mut context_menu_visible = false;
4733 let context_menu_placement;
4734
4735 {
4736 let editor = self.editor.read(cx);
4737 if editor.edit_prediction_visible_in_cursor_popover(editor.has_active_edit_prediction())
4738 {
4739 height_above_menu +=
4740 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
4741 edit_prediction_popover_visible = true;
4742 }
4743
4744 if editor.context_menu_visible()
4745 && let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin()
4746 {
4747 let (min_height_in_lines, max_height_in_lines) = editor
4748 .context_menu_options
4749 .as_ref()
4750 .map_or((3, 12), |options| {
4751 (options.min_entries_visible, options.max_entries_visible)
4752 });
4753
4754 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4755 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4756 context_menu_visible = true;
4757 }
4758 context_menu_placement = editor
4759 .context_menu_options
4760 .as_ref()
4761 .and_then(|options| options.placement.clone());
4762 }
4763
4764 let visible = edit_prediction_popover_visible || context_menu_visible;
4765 if !visible {
4766 return None;
4767 }
4768
4769 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
4770 let target_position = content_origin
4771 + gpui::Point {
4772 x: cmp::max(
4773 px(0.),
4774 Pixels::from(
4775 ScrollPixelOffset::from(
4776 cursor_row_layout.x_for_index(cursor.column() as usize),
4777 ) - scroll_pixel_position.x,
4778 ),
4779 ),
4780 y: cmp::max(
4781 px(0.),
4782 Pixels::from(
4783 cursor.row().next_row().as_f64() * ScrollPixelOffset::from(line_height)
4784 - scroll_pixel_position.y,
4785 ),
4786 ),
4787 };
4788
4789 let viewport_bounds =
4790 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4791 right: -right_margin - MENU_GAP,
4792 ..Default::default()
4793 });
4794
4795 let min_height = height_above_menu + min_menu_height + height_below_menu;
4796 let max_height = height_above_menu + max_menu_height + height_below_menu;
4797 let (laid_out_popovers, y_flipped) = self.layout_popovers_above_or_below_line(
4798 target_position,
4799 line_height,
4800 min_height,
4801 max_height,
4802 context_menu_placement,
4803 text_hitbox,
4804 viewport_bounds,
4805 window,
4806 cx,
4807 |height, max_width_for_stable_x, y_flipped, window, cx| {
4808 // First layout the menu to get its size - others can be at least this wide.
4809 let context_menu = if context_menu_visible {
4810 let menu_height = if y_flipped {
4811 height - height_below_menu
4812 } else {
4813 height - height_above_menu
4814 };
4815 let mut element = self
4816 .render_context_menu(line_height, menu_height, window, cx)
4817 .expect("Visible context menu should always render.");
4818 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4819 Some((CursorPopoverType::CodeContextMenu, element, size))
4820 } else {
4821 None
4822 };
4823 let min_width = context_menu
4824 .as_ref()
4825 .map_or(px(0.), |(_, _, size)| size.width);
4826 let max_width = max_width_for_stable_x.max(
4827 context_menu
4828 .as_ref()
4829 .map_or(px(0.), |(_, _, size)| size.width),
4830 );
4831
4832 let edit_prediction = if edit_prediction_popover_visible {
4833 self.editor.update(cx, move |editor, cx| {
4834 let accept_binding = editor.accept_edit_prediction_keybind(
4835 EditPredictionGranularity::Full,
4836 window,
4837 cx,
4838 );
4839 let mut element = editor.render_edit_prediction_cursor_popover(
4840 min_width,
4841 max_width,
4842 cursor_point,
4843 style,
4844 accept_binding.keystroke(),
4845 window,
4846 cx,
4847 )?;
4848 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4849 Some((CursorPopoverType::EditPrediction, element, size))
4850 })
4851 } else {
4852 None
4853 };
4854 vec![edit_prediction, context_menu]
4855 .into_iter()
4856 .flatten()
4857 .collect::<Vec<_>>()
4858 },
4859 )?;
4860
4861 let (menu_ix, (_, menu_bounds)) = laid_out_popovers
4862 .iter()
4863 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))?;
4864 let last_ix = laid_out_popovers.len() - 1;
4865 let menu_is_last = menu_ix == last_ix;
4866 let first_popover_bounds = laid_out_popovers[0].1;
4867 let last_popover_bounds = laid_out_popovers[last_ix].1;
4868
4869 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
4870 // right, and otherwise it goes below or to the right.
4871 let mut target_bounds = Bounds::from_corners(
4872 first_popover_bounds.origin,
4873 last_popover_bounds.bottom_right(),
4874 );
4875 target_bounds.size.width = menu_bounds.size.width;
4876
4877 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
4878 // based on this is preferred for layout stability.
4879 let mut max_target_bounds = target_bounds;
4880 max_target_bounds.size.height = max_height;
4881 if y_flipped {
4882 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
4883 }
4884
4885 // Add spacing around `target_bounds` and `max_target_bounds`.
4886 let mut extend_amount = Edges::all(MENU_GAP);
4887 if y_flipped {
4888 extend_amount.bottom = line_height;
4889 } else {
4890 extend_amount.top = line_height;
4891 }
4892 let target_bounds = target_bounds.extend(extend_amount);
4893 let max_target_bounds = max_target_bounds.extend(extend_amount);
4894
4895 let must_place_above_or_below =
4896 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
4897 laid_out_popovers[menu_ix + 1..]
4898 .iter()
4899 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
4900 } else {
4901 false
4902 };
4903
4904 let aside_bounds = self.layout_context_menu_aside(
4905 y_flipped,
4906 *menu_bounds,
4907 target_bounds,
4908 max_target_bounds,
4909 max_menu_height,
4910 must_place_above_or_below,
4911 text_hitbox,
4912 viewport_bounds,
4913 window,
4914 cx,
4915 );
4916
4917 if let Some(menu_bounds) = laid_out_popovers.iter().find_map(|(popover_type, bounds)| {
4918 if matches!(popover_type, CursorPopoverType::CodeContextMenu) {
4919 Some(*bounds)
4920 } else {
4921 None
4922 }
4923 }) {
4924 let bounds = if let Some(aside_bounds) = aside_bounds {
4925 menu_bounds.union(&aside_bounds)
4926 } else {
4927 menu_bounds
4928 };
4929 return Some(ContextMenuLayout { y_flipped, bounds });
4930 }
4931
4932 None
4933 }
4934
4935 fn layout_gutter_menu(
4936 &self,
4937 line_height: Pixels,
4938 text_hitbox: &Hitbox,
4939 content_origin: gpui::Point<Pixels>,
4940 right_margin: Pixels,
4941 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4942 gutter_overshoot: Pixels,
4943 window: &mut Window,
4944 cx: &mut App,
4945 ) {
4946 let editor = self.editor.read(cx);
4947 if !editor.context_menu_visible() {
4948 return;
4949 }
4950 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
4951 editor.context_menu_origin()
4952 else {
4953 return;
4954 };
4955 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
4956 // indicator than just a plain first column of the text field.
4957 let target_position = content_origin
4958 + gpui::Point {
4959 x: -gutter_overshoot,
4960 y: Pixels::from(
4961 gutter_row.next_row().as_f64() * ScrollPixelOffset::from(line_height)
4962 - scroll_pixel_position.y,
4963 ),
4964 };
4965
4966 let (min_height_in_lines, max_height_in_lines) = editor
4967 .context_menu_options
4968 .as_ref()
4969 .map_or((3, 12), |options| {
4970 (options.min_entries_visible, options.max_entries_visible)
4971 });
4972
4973 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4974 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4975 let viewport_bounds =
4976 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4977 right: -right_margin - MENU_GAP,
4978 ..Default::default()
4979 });
4980 self.layout_popovers_above_or_below_line(
4981 target_position,
4982 line_height,
4983 min_height,
4984 max_height,
4985 editor
4986 .context_menu_options
4987 .as_ref()
4988 .and_then(|options| options.placement.clone()),
4989 text_hitbox,
4990 viewport_bounds,
4991 window,
4992 cx,
4993 move |height, _max_width_for_stable_x, _, window, cx| {
4994 let mut element = self
4995 .render_context_menu(line_height, height, window, cx)
4996 .expect("Visible context menu should always render.");
4997 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4998 vec![(CursorPopoverType::CodeContextMenu, element, size)]
4999 },
5000 );
5001 }
5002
5003 fn layout_popovers_above_or_below_line(
5004 &self,
5005 target_position: gpui::Point<Pixels>,
5006 line_height: Pixels,
5007 min_height: Pixels,
5008 max_height: Pixels,
5009 placement: Option<ContextMenuPlacement>,
5010 text_hitbox: &Hitbox,
5011 viewport_bounds: Bounds<Pixels>,
5012 window: &mut Window,
5013 cx: &mut App,
5014 make_sized_popovers: impl FnOnce(
5015 Pixels,
5016 Pixels,
5017 bool,
5018 &mut Window,
5019 &mut App,
5020 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
5021 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
5022 let text_style = TextStyleRefinement {
5023 line_height: Some(DefiniteLength::Fraction(
5024 BufferLineHeight::Comfortable.value(),
5025 )),
5026 ..Default::default()
5027 };
5028 window.with_text_style(Some(text_style), |window| {
5029 // If the max height won't fit below and there is more space above, put it above the line.
5030 let bottom_y_when_flipped = target_position.y - line_height;
5031 let available_above = bottom_y_when_flipped - text_hitbox.top();
5032 let available_below = text_hitbox.bottom() - target_position.y;
5033 let y_overflows_below = max_height > available_below;
5034 let mut y_flipped = match placement {
5035 Some(ContextMenuPlacement::Above) => true,
5036 Some(ContextMenuPlacement::Below) => false,
5037 None => y_overflows_below && available_above > available_below,
5038 };
5039 let mut height = cmp::min(
5040 max_height,
5041 if y_flipped {
5042 available_above
5043 } else {
5044 available_below
5045 },
5046 );
5047
5048 // If the min height doesn't fit within text bounds, instead fit within the window.
5049 if height < min_height {
5050 let available_above = bottom_y_when_flipped;
5051 let available_below = viewport_bounds.bottom() - target_position.y;
5052 let (y_flipped_override, height_override) = match placement {
5053 Some(ContextMenuPlacement::Above) => {
5054 (true, cmp::min(available_above, min_height))
5055 }
5056 Some(ContextMenuPlacement::Below) => {
5057 (false, cmp::min(available_below, min_height))
5058 }
5059 None => {
5060 if available_below > min_height {
5061 (false, min_height)
5062 } else if available_above > min_height {
5063 (true, min_height)
5064 } else if available_above > available_below {
5065 (true, available_above)
5066 } else {
5067 (false, available_below)
5068 }
5069 }
5070 };
5071 y_flipped = y_flipped_override;
5072 height = height_override;
5073 }
5074
5075 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
5076
5077 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
5078 // for very narrow windows.
5079 let popovers =
5080 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
5081 if popovers.is_empty() {
5082 return None;
5083 }
5084
5085 let max_width = popovers
5086 .iter()
5087 .map(|(_, _, size)| size.width)
5088 .max()
5089 .unwrap_or_default();
5090
5091 let mut current_position = gpui::Point {
5092 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
5093 // overflow. Include space for the scrollbar.
5094 x: target_position
5095 .x
5096 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
5097 y: if y_flipped {
5098 bottom_y_when_flipped
5099 } else {
5100 target_position.y
5101 },
5102 };
5103
5104 let mut laid_out_popovers = popovers
5105 .into_iter()
5106 .map(|(popover_type, element, size)| {
5107 if y_flipped {
5108 current_position.y -= size.height;
5109 }
5110 let position = current_position;
5111 window.defer_draw(element, current_position, 1);
5112 if !y_flipped {
5113 current_position.y += size.height + MENU_GAP;
5114 } else {
5115 current_position.y -= MENU_GAP;
5116 }
5117 (popover_type, Bounds::new(position, size))
5118 })
5119 .collect::<Vec<_>>();
5120
5121 if y_flipped {
5122 laid_out_popovers.reverse();
5123 }
5124
5125 Some((laid_out_popovers, y_flipped))
5126 })
5127 }
5128
5129 fn layout_context_menu_aside(
5130 &self,
5131 y_flipped: bool,
5132 menu_bounds: Bounds<Pixels>,
5133 target_bounds: Bounds<Pixels>,
5134 max_target_bounds: Bounds<Pixels>,
5135 max_height: Pixels,
5136 must_place_above_or_below: bool,
5137 text_hitbox: &Hitbox,
5138 viewport_bounds: Bounds<Pixels>,
5139 window: &mut Window,
5140 cx: &mut App,
5141 ) -> Option<Bounds<Pixels>> {
5142 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
5143 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
5144 && !must_place_above_or_below
5145 {
5146 let max_width = cmp::min(
5147 available_within_viewport.right - px(1.),
5148 MENU_ASIDE_MAX_WIDTH,
5149 );
5150 let mut aside = self.render_context_menu_aside(
5151 size(max_width, max_height - POPOVER_Y_PADDING),
5152 window,
5153 cx,
5154 )?;
5155 let size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5156 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
5157 Some((aside, right_position, size))
5158 } else {
5159 let max_size = size(
5160 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
5161 // won't be needed here.
5162 cmp::min(
5163 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
5164 viewport_bounds.right(),
5165 ),
5166 cmp::min(
5167 max_height,
5168 cmp::max(
5169 available_within_viewport.top,
5170 available_within_viewport.bottom,
5171 ),
5172 ) - POPOVER_Y_PADDING,
5173 );
5174 let mut aside = self.render_context_menu_aside(max_size, window, cx)?;
5175 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5176
5177 let top_position = point(
5178 menu_bounds.origin.x,
5179 target_bounds.top() - actual_size.height,
5180 );
5181 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
5182
5183 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
5184 // Prefer to fit on the same side of the line as the menu, then on the other side of
5185 // the line.
5186 if !y_flipped && wanted.height < available.bottom {
5187 Some(bottom_position)
5188 } else if !y_flipped && wanted.height < available.top {
5189 Some(top_position)
5190 } else if y_flipped && wanted.height < available.top {
5191 Some(top_position)
5192 } else if y_flipped && wanted.height < available.bottom {
5193 Some(bottom_position)
5194 } else {
5195 None
5196 }
5197 };
5198
5199 // Prefer choosing a direction using max sizes rather than actual size for stability.
5200 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
5201 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
5202 let aside_position = fit_within(available_within_text, wanted)
5203 // Fallback: fit max size in window.
5204 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
5205 // Fallback: fit actual size in window.
5206 .or_else(|| fit_within(available_within_viewport, actual_size));
5207
5208 aside_position.map(|position| (aside, position, actual_size))
5209 };
5210
5211 // Skip drawing if it doesn't fit anywhere.
5212 if let Some((aside, position, size)) = positioned_aside {
5213 let aside_bounds = Bounds::new(position, size);
5214 window.defer_draw(aside, position, 2);
5215 return Some(aside_bounds);
5216 }
5217
5218 None
5219 }
5220
5221 fn render_context_menu(
5222 &self,
5223 line_height: Pixels,
5224 height: Pixels,
5225 window: &mut Window,
5226 cx: &mut App,
5227 ) -> Option<AnyElement> {
5228 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
5229 self.editor.update(cx, |editor, cx| {
5230 editor.render_context_menu(max_height_in_lines, window, cx)
5231 })
5232 }
5233
5234 fn render_context_menu_aside(
5235 &self,
5236 max_size: Size<Pixels>,
5237 window: &mut Window,
5238 cx: &mut App,
5239 ) -> Option<AnyElement> {
5240 if max_size.width < px(100.) || max_size.height < px(12.) {
5241 None
5242 } else {
5243 self.editor.update(cx, |editor, cx| {
5244 editor.render_context_menu_aside(max_size, window, cx)
5245 })
5246 }
5247 }
5248
5249 fn layout_mouse_context_menu(
5250 &self,
5251 editor_snapshot: &EditorSnapshot,
5252 visible_range: Range<DisplayRow>,
5253 content_origin: gpui::Point<Pixels>,
5254 window: &mut Window,
5255 cx: &mut App,
5256 ) -> Option<AnyElement> {
5257 let position = self.editor.update(cx, |editor, cx| {
5258 let visible_start_point = editor.display_to_pixel_point(
5259 DisplayPoint::new(visible_range.start, 0),
5260 editor_snapshot,
5261 window,
5262 cx,
5263 )?;
5264 let visible_end_point = editor.display_to_pixel_point(
5265 DisplayPoint::new(visible_range.end, 0),
5266 editor_snapshot,
5267 window,
5268 cx,
5269 )?;
5270
5271 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5272 let (source_display_point, position) = match mouse_context_menu.position {
5273 MenuPosition::PinnedToScreen(point) => (None, point),
5274 MenuPosition::PinnedToEditor { source, offset } => {
5275 let source_display_point = source.to_display_point(editor_snapshot);
5276 let source_point =
5277 editor.to_pixel_point(source, editor_snapshot, window, cx)?;
5278 let position = content_origin + source_point + offset;
5279 (Some(source_display_point), position)
5280 }
5281 };
5282
5283 let source_included = source_display_point.is_none_or(|source_display_point| {
5284 visible_range
5285 .to_inclusive()
5286 .contains(&source_display_point.row())
5287 });
5288 let position_included =
5289 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
5290 if !source_included && !position_included {
5291 None
5292 } else {
5293 Some(position)
5294 }
5295 })?;
5296
5297 let text_style = TextStyleRefinement {
5298 line_height: Some(DefiniteLength::Fraction(
5299 BufferLineHeight::Comfortable.value(),
5300 )),
5301 ..Default::default()
5302 };
5303 window.with_text_style(Some(text_style), |window| {
5304 let mut element = self.editor.read_with(cx, |editor, _| {
5305 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5306 let context_menu = mouse_context_menu.context_menu.clone();
5307
5308 Some(
5309 deferred(
5310 anchored()
5311 .position(position)
5312 .child(context_menu)
5313 .anchor(Corner::TopLeft)
5314 .snap_to_window_with_margin(px(8.)),
5315 )
5316 .with_priority(1)
5317 .into_any(),
5318 )
5319 })?;
5320
5321 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
5322 Some(element)
5323 })
5324 }
5325
5326 fn layout_hover_popovers(
5327 &self,
5328 snapshot: &EditorSnapshot,
5329 hitbox: &Hitbox,
5330 visible_display_row_range: Range<DisplayRow>,
5331 content_origin: gpui::Point<Pixels>,
5332 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5333 line_layouts: &[LineWithInvisibles],
5334 line_height: Pixels,
5335 em_width: Pixels,
5336 context_menu_layout: Option<ContextMenuLayout>,
5337 window: &mut Window,
5338 cx: &mut App,
5339 ) {
5340 struct MeasuredHoverPopover {
5341 element: AnyElement,
5342 size: Size<Pixels>,
5343 horizontal_offset: Pixels,
5344 }
5345
5346 let max_size = size(
5347 (120. * em_width) // Default size
5348 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5349 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5350 (16. * line_height) // Default size
5351 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5352 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5353 );
5354
5355 // Don't show hover popovers when context menu is open to avoid overlap
5356 let has_context_menu = self.editor.read(cx).mouse_context_menu.is_some();
5357 if has_context_menu {
5358 return;
5359 }
5360
5361 let hover_popovers = self.editor.update(cx, |editor, cx| {
5362 editor.hover_state.render(
5363 snapshot,
5364 visible_display_row_range.clone(),
5365 max_size,
5366 &editor.text_layout_details(window, cx),
5367 window,
5368 cx,
5369 )
5370 });
5371 let Some((popover_position, hover_popovers)) = hover_popovers else {
5372 return;
5373 };
5374
5375 // This is safe because we check on layout whether the required row is available
5376 let hovered_row_layout = &line_layouts[popover_position
5377 .row()
5378 .minus(visible_display_row_range.start)
5379 as usize];
5380
5381 // Compute Hovered Point
5382 let x = hovered_row_layout.x_for_index(popover_position.column() as usize)
5383 - Pixels::from(scroll_pixel_position.x);
5384 let y = Pixels::from(
5385 popover_position.row().as_f64() * ScrollPixelOffset::from(line_height)
5386 - scroll_pixel_position.y,
5387 );
5388 let hovered_point = content_origin + point(x, y);
5389
5390 let mut overall_height = Pixels::ZERO;
5391 let mut measured_hover_popovers = Vec::new();
5392 for (position, mut hover_popover) in hover_popovers.into_iter().with_position() {
5393 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
5394 let horizontal_offset =
5395 (hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
5396 .min(Pixels::ZERO);
5397 match position {
5398 itertools::Position::Middle | itertools::Position::Last => {
5399 overall_height += HOVER_POPOVER_GAP
5400 }
5401 _ => {}
5402 }
5403 overall_height += size.height;
5404 measured_hover_popovers.push(MeasuredHoverPopover {
5405 element: hover_popover,
5406 size,
5407 horizontal_offset,
5408 });
5409 }
5410
5411 fn draw_occluder(
5412 width: Pixels,
5413 origin: gpui::Point<Pixels>,
5414 window: &mut Window,
5415 cx: &mut App,
5416 ) {
5417 let mut occlusion = div()
5418 .size_full()
5419 .occlude()
5420 .on_mouse_move(|_, _, cx| cx.stop_propagation())
5421 .into_any_element();
5422 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
5423 window.defer_draw(occlusion, origin, 2);
5424 }
5425
5426 fn place_popovers_above(
5427 hovered_point: gpui::Point<Pixels>,
5428 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5429 window: &mut Window,
5430 cx: &mut App,
5431 ) {
5432 let mut current_y = hovered_point.y;
5433 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5434 let size = popover.size;
5435 let popover_origin = point(
5436 hovered_point.x + popover.horizontal_offset,
5437 current_y - size.height,
5438 );
5439
5440 window.defer_draw(popover.element, popover_origin, 2);
5441 if position != itertools::Position::Last {
5442 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
5443 draw_occluder(size.width, origin, window, cx);
5444 }
5445
5446 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5447 }
5448 }
5449
5450 fn place_popovers_below(
5451 hovered_point: gpui::Point<Pixels>,
5452 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5453 line_height: Pixels,
5454 window: &mut Window,
5455 cx: &mut App,
5456 ) {
5457 let mut current_y = hovered_point.y + line_height;
5458 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5459 let size = popover.size;
5460 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5461
5462 window.defer_draw(popover.element, popover_origin, 2);
5463 if position != itertools::Position::Last {
5464 let origin = point(popover_origin.x, popover_origin.y + size.height);
5465 draw_occluder(size.width, origin, window, cx);
5466 }
5467
5468 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5469 }
5470 }
5471
5472 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5473 context_menu_layout
5474 .as_ref()
5475 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5476 };
5477
5478 let can_place_above = {
5479 let mut bounds_above = Vec::new();
5480 let mut current_y = hovered_point.y;
5481 for popover in &measured_hover_popovers {
5482 let size = popover.size;
5483 let popover_origin = point(
5484 hovered_point.x + popover.horizontal_offset,
5485 current_y - size.height,
5486 );
5487 bounds_above.push(Bounds::new(popover_origin, size));
5488 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5489 }
5490 bounds_above
5491 .iter()
5492 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5493 };
5494
5495 let can_place_below = || {
5496 let mut bounds_below = Vec::new();
5497 let mut current_y = hovered_point.y + line_height;
5498 for popover in &measured_hover_popovers {
5499 let size = popover.size;
5500 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5501 bounds_below.push(Bounds::new(popover_origin, size));
5502 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5503 }
5504 bounds_below
5505 .iter()
5506 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5507 };
5508
5509 if can_place_above {
5510 // try placing above hovered point
5511 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5512 } else if can_place_below() {
5513 // try placing below hovered point
5514 place_popovers_below(
5515 hovered_point,
5516 measured_hover_popovers,
5517 line_height,
5518 window,
5519 cx,
5520 );
5521 } else {
5522 // try to place popovers around the context menu
5523 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5524 let total_width = measured_hover_popovers
5525 .iter()
5526 .map(|p| p.size.width)
5527 .max()
5528 .unwrap_or(Pixels::ZERO);
5529 let y_for_horizontal_positioning = if menu.y_flipped {
5530 menu.bounds.bottom() - overall_height
5531 } else {
5532 menu.bounds.top()
5533 };
5534 let possible_origins = vec![
5535 // left of context menu
5536 point(
5537 menu.bounds.left() - total_width - HOVER_POPOVER_GAP,
5538 y_for_horizontal_positioning,
5539 ),
5540 // right of context menu
5541 point(
5542 menu.bounds.right() + HOVER_POPOVER_GAP,
5543 y_for_horizontal_positioning,
5544 ),
5545 // top of context menu
5546 point(
5547 menu.bounds.left(),
5548 menu.bounds.top() - overall_height - HOVER_POPOVER_GAP,
5549 ),
5550 // bottom of context menu
5551 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5552 ];
5553 possible_origins.into_iter().find(|&origin| {
5554 Bounds::new(origin, size(total_width, overall_height))
5555 .is_contained_within(hitbox)
5556 })
5557 });
5558 if let Some(origin) = origin_surrounding_menu {
5559 let mut current_y = origin.y;
5560 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5561 let size = popover.size;
5562 let popover_origin = point(origin.x, current_y);
5563
5564 window.defer_draw(popover.element, popover_origin, 2);
5565 if position != itertools::Position::Last {
5566 let origin = point(popover_origin.x, popover_origin.y + size.height);
5567 draw_occluder(size.width, origin, window, cx);
5568 }
5569
5570 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5571 }
5572 } else {
5573 // fallback to existing above/below cursor logic
5574 // this might overlap menu or overflow in rare case
5575 if can_place_above {
5576 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5577 } else {
5578 place_popovers_below(
5579 hovered_point,
5580 measured_hover_popovers,
5581 line_height,
5582 window,
5583 cx,
5584 );
5585 }
5586 }
5587 }
5588 }
5589
5590 fn layout_word_diff_highlights(
5591 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5592 row_infos: &[RowInfo],
5593 start_row: DisplayRow,
5594 snapshot: &EditorSnapshot,
5595 highlighted_ranges: &mut Vec<(Range<DisplayPoint>, Hsla)>,
5596 cx: &mut App,
5597 ) {
5598 let colors = cx.theme().colors();
5599
5600 let word_highlights = display_hunks
5601 .into_iter()
5602 .filter_map(|(hunk, _)| match hunk {
5603 DisplayDiffHunk::Unfolded {
5604 word_diffs, status, ..
5605 } => Some((word_diffs, status)),
5606 _ => None,
5607 })
5608 .filter(|(_, status)| status.is_modified())
5609 .flat_map(|(word_diffs, _)| word_diffs)
5610 .flat_map(|word_diff| {
5611 let display_ranges = snapshot
5612 .display_snapshot
5613 .isomorphic_display_point_ranges_for_buffer_range(
5614 word_diff.start..word_diff.end,
5615 );
5616
5617 display_ranges.into_iter().filter_map(|range| {
5618 let start_row_offset = range.start.row().0.saturating_sub(start_row.0) as usize;
5619
5620 let diff_status = row_infos
5621 .get(start_row_offset)
5622 .and_then(|row_info| row_info.diff_status)?;
5623
5624 let background_color = match diff_status.kind {
5625 DiffHunkStatusKind::Added => colors.version_control_word_added,
5626 DiffHunkStatusKind::Deleted => colors.version_control_word_deleted,
5627 DiffHunkStatusKind::Modified => {
5628 debug_panic!("modified diff status for row info");
5629 return None;
5630 }
5631 };
5632
5633 Some((range, background_color))
5634 })
5635 });
5636
5637 highlighted_ranges.extend(word_highlights);
5638 }
5639
5640 fn layout_diff_hunk_controls(
5641 &self,
5642 row_range: Range<DisplayRow>,
5643 row_infos: &[RowInfo],
5644 text_hitbox: &Hitbox,
5645 newest_cursor_row: Option<DisplayRow>,
5646 line_height: Pixels,
5647 right_margin: Pixels,
5648 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5649 sticky_header_height: Pixels,
5650 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5651 highlighted_rows: &BTreeMap<DisplayRow, LineHighlight>,
5652 editor: Entity<Editor>,
5653 window: &mut Window,
5654 cx: &mut App,
5655 ) -> (Vec<AnyElement>, Vec<(DisplayRow, Bounds<Pixels>)>) {
5656 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
5657 let hovered_diff_hunk_row = editor.read(cx).hovered_diff_hunk_row;
5658 let sticky_top = text_hitbox.bounds.top() + sticky_header_height;
5659
5660 let mut controls = vec![];
5661 let mut control_bounds = vec![];
5662
5663 let active_rows = [hovered_diff_hunk_row, newest_cursor_row];
5664
5665 for (hunk, _) in display_hunks {
5666 if let DisplayDiffHunk::Unfolded {
5667 display_row_range,
5668 multi_buffer_range,
5669 status,
5670 is_created_file,
5671 ..
5672 } = &hunk
5673 {
5674 if display_row_range.start >= row_range.end {
5675 // hunk is fully below the viewport
5676 continue;
5677 }
5678 if display_row_range.end <= row_range.start {
5679 // hunk is fully above the viewport
5680 continue;
5681 }
5682 let row_ix = display_row_range.start.0.saturating_sub(row_range.start.0);
5683 if row_infos
5684 .get(row_ix as usize)
5685 .and_then(|row_info| row_info.diff_status)
5686 .is_none()
5687 {
5688 continue;
5689 }
5690 if highlighted_rows
5691 .get(&display_row_range.start)
5692 .and_then(|highlight| highlight.type_id)
5693 .is_some_and(|type_id| {
5694 [
5695 TypeId::of::<ConflictsOuter>(),
5696 TypeId::of::<ConflictsOursMarker>(),
5697 TypeId::of::<ConflictsOurs>(),
5698 TypeId::of::<ConflictsTheirs>(),
5699 TypeId::of::<ConflictsTheirsMarker>(),
5700 ]
5701 .contains(&type_id)
5702 })
5703 {
5704 continue;
5705 }
5706
5707 if active_rows
5708 .iter()
5709 .any(|row| row.is_some_and(|row| display_row_range.contains(&row)))
5710 {
5711 let hunk_start_y: Pixels = (display_row_range.start.as_f64()
5712 * ScrollPixelOffset::from(line_height)
5713 + ScrollPixelOffset::from(text_hitbox.bounds.top())
5714 - scroll_pixel_position.y)
5715 .into();
5716
5717 let y: Pixels = if hunk_start_y >= sticky_top {
5718 hunk_start_y
5719 } else {
5720 let hunk_end_y: Pixels = hunk_start_y
5721 + (display_row_range.len() as f64
5722 * ScrollPixelOffset::from(line_height))
5723 .into();
5724 let max_y = hunk_end_y - line_height;
5725 sticky_top.min(max_y)
5726 };
5727
5728 let mut element = render_diff_hunk_controls(
5729 display_row_range.start.0,
5730 status,
5731 multi_buffer_range.clone(),
5732 *is_created_file,
5733 line_height,
5734 &editor,
5735 window,
5736 cx,
5737 );
5738 let size =
5739 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
5740
5741 let x = text_hitbox.bounds.right() - right_margin - px(10.) - size.width;
5742
5743 if x < text_hitbox.bounds.left() {
5744 continue;
5745 }
5746
5747 let bounds = Bounds::new(gpui::Point::new(x, y), size);
5748 control_bounds.push((display_row_range.start, bounds));
5749
5750 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
5751 element.prepaint(window, cx)
5752 });
5753 controls.push(element);
5754 }
5755 }
5756 }
5757
5758 (controls, control_bounds)
5759 }
5760
5761 fn layout_signature_help(
5762 &self,
5763 hitbox: &Hitbox,
5764 content_origin: gpui::Point<Pixels>,
5765 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5766 newest_selection_head: Option<DisplayPoint>,
5767 start_row: DisplayRow,
5768 line_layouts: &[LineWithInvisibles],
5769 line_height: Pixels,
5770 em_width: Pixels,
5771 context_menu_layout: Option<ContextMenuLayout>,
5772 window: &mut Window,
5773 cx: &mut App,
5774 ) {
5775 if !self.editor.focus_handle(cx).is_focused(window) {
5776 return;
5777 }
5778 let Some(newest_selection_head) = newest_selection_head else {
5779 return;
5780 };
5781
5782 let max_size = size(
5783 (120. * em_width) // Default size
5784 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5785 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5786 (16. * line_height) // Default size
5787 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5788 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5789 );
5790
5791 let maybe_element = self.editor.update(cx, |editor, cx| {
5792 if let Some(popover) = editor.signature_help_state.popover_mut() {
5793 let element = popover.render(max_size, window, cx);
5794 Some(element)
5795 } else {
5796 None
5797 }
5798 });
5799 let Some(mut element) = maybe_element else {
5800 return;
5801 };
5802
5803 let selection_row = newest_selection_head.row();
5804 let Some(cursor_row_layout) = (selection_row >= start_row)
5805 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
5806 .flatten()
5807 else {
5808 return;
5809 };
5810
5811 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
5812 - Pixels::from(scroll_pixel_position.x);
5813 let target_y = Pixels::from(
5814 selection_row.as_f64() * ScrollPixelOffset::from(line_height) - scroll_pixel_position.y,
5815 );
5816 let target_point = content_origin + point(target_x, target_y);
5817
5818 let actual_size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
5819
5820 let (popover_bounds_above, popover_bounds_below) = {
5821 let horizontal_offset = (hitbox.top_right().x
5822 - POPOVER_RIGHT_OFFSET
5823 - (target_point.x + actual_size.width))
5824 .min(Pixels::ZERO);
5825 let initial_x = target_point.x + horizontal_offset;
5826 (
5827 Bounds::new(
5828 point(initial_x, target_point.y - actual_size.height),
5829 actual_size,
5830 ),
5831 Bounds::new(
5832 point(initial_x, target_point.y + line_height + HOVER_POPOVER_GAP),
5833 actual_size,
5834 ),
5835 )
5836 };
5837
5838 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5839 context_menu_layout
5840 .as_ref()
5841 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5842 };
5843
5844 let final_origin = if popover_bounds_above.is_contained_within(hitbox)
5845 && !intersects_menu(popover_bounds_above)
5846 {
5847 // try placing above cursor
5848 popover_bounds_above.origin
5849 } else if popover_bounds_below.is_contained_within(hitbox)
5850 && !intersects_menu(popover_bounds_below)
5851 {
5852 // try placing below cursor
5853 popover_bounds_below.origin
5854 } else {
5855 // try surrounding context menu if exists
5856 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5857 let y_for_horizontal_positioning = if menu.y_flipped {
5858 menu.bounds.bottom() - actual_size.height
5859 } else {
5860 menu.bounds.top()
5861 };
5862 let possible_origins = vec![
5863 // left of context menu
5864 point(
5865 menu.bounds.left() - actual_size.width - HOVER_POPOVER_GAP,
5866 y_for_horizontal_positioning,
5867 ),
5868 // right of context menu
5869 point(
5870 menu.bounds.right() + HOVER_POPOVER_GAP,
5871 y_for_horizontal_positioning,
5872 ),
5873 // top of context menu
5874 point(
5875 menu.bounds.left(),
5876 menu.bounds.top() - actual_size.height - HOVER_POPOVER_GAP,
5877 ),
5878 // bottom of context menu
5879 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5880 ];
5881 possible_origins
5882 .into_iter()
5883 .find(|&origin| Bounds::new(origin, actual_size).is_contained_within(hitbox))
5884 });
5885 origin_surrounding_menu.unwrap_or_else(|| {
5886 // fallback to existing above/below cursor logic
5887 // this might overlap menu or overflow in rare case
5888 if popover_bounds_above.is_contained_within(hitbox) {
5889 popover_bounds_above.origin
5890 } else {
5891 popover_bounds_below.origin
5892 }
5893 })
5894 };
5895
5896 window.defer_draw(element, final_origin, 2);
5897 }
5898
5899 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5900 window.paint_layer(layout.hitbox.bounds, |window| {
5901 let scroll_top = layout.position_map.snapshot.scroll_position().y;
5902 let gutter_bg = cx.theme().colors().editor_gutter_background;
5903 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
5904 window.paint_quad(fill(
5905 layout.position_map.text_hitbox.bounds,
5906 self.style.background,
5907 ));
5908
5909 if matches!(
5910 layout.mode,
5911 EditorMode::Full { .. } | EditorMode::Minimap { .. }
5912 ) {
5913 let show_active_line_background = match layout.mode {
5914 EditorMode::Full {
5915 show_active_line_background,
5916 ..
5917 } => show_active_line_background,
5918 EditorMode::Minimap { .. } => true,
5919 _ => false,
5920 };
5921 let mut active_rows = layout.active_rows.iter().peekable();
5922 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
5923 let mut end_row = start_row.0;
5924 while active_rows
5925 .peek()
5926 .is_some_and(|(active_row, has_selection)| {
5927 active_row.0 == end_row + 1
5928 && has_selection.selection == contains_non_empty_selection.selection
5929 })
5930 {
5931 active_rows.next().unwrap();
5932 end_row += 1;
5933 }
5934
5935 if show_active_line_background && !contains_non_empty_selection.selection {
5936 let highlight_h_range =
5937 match layout.position_map.snapshot.current_line_highlight {
5938 CurrentLineHighlight::Gutter => Some(Range {
5939 start: layout.hitbox.left(),
5940 end: layout.gutter_hitbox.right(),
5941 }),
5942 CurrentLineHighlight::Line => Some(Range {
5943 start: layout.position_map.text_hitbox.bounds.left(),
5944 end: layout.position_map.text_hitbox.bounds.right(),
5945 }),
5946 CurrentLineHighlight::All => Some(Range {
5947 start: layout.hitbox.left(),
5948 end: layout.hitbox.right(),
5949 }),
5950 CurrentLineHighlight::None => None,
5951 };
5952 if let Some(range) = highlight_h_range {
5953 let active_line_bg = cx.theme().colors().editor_active_line_background;
5954 let bounds = Bounds {
5955 origin: point(
5956 range.start,
5957 layout.hitbox.origin.y
5958 + Pixels::from(
5959 (start_row.as_f64() - scroll_top)
5960 * ScrollPixelOffset::from(
5961 layout.position_map.line_height,
5962 ),
5963 ),
5964 ),
5965 size: size(
5966 range.end - range.start,
5967 layout.position_map.line_height
5968 * (end_row - start_row.0 + 1) as f32,
5969 ),
5970 };
5971 window.paint_quad(fill(bounds, active_line_bg));
5972 }
5973 }
5974 }
5975
5976 let mut paint_highlight = |highlight_row_start: DisplayRow,
5977 highlight_row_end: DisplayRow,
5978 highlight: crate::LineHighlight,
5979 edges| {
5980 let mut origin_x = layout.hitbox.left();
5981 let mut width = layout.hitbox.size.width;
5982 if !highlight.include_gutter {
5983 origin_x += layout.gutter_hitbox.size.width;
5984 width -= layout.gutter_hitbox.size.width;
5985 }
5986
5987 let origin = point(
5988 origin_x,
5989 layout.hitbox.origin.y
5990 + Pixels::from(
5991 (highlight_row_start.as_f64() - scroll_top)
5992 * ScrollPixelOffset::from(layout.position_map.line_height),
5993 ),
5994 );
5995 let size = size(
5996 width,
5997 layout.position_map.line_height
5998 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
5999 );
6000 let mut quad = fill(Bounds { origin, size }, highlight.background);
6001 if let Some(border_color) = highlight.border {
6002 quad.border_color = border_color;
6003 quad.border_widths = edges
6004 }
6005 window.paint_quad(quad);
6006 };
6007
6008 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
6009 None;
6010 for (&new_row, &new_background) in &layout.highlighted_rows {
6011 match &mut current_paint {
6012 &mut Some((current_background, ref mut current_range, mut edges)) => {
6013 let new_range_started = current_background != new_background
6014 || current_range.end.next_row() != new_row;
6015 if new_range_started {
6016 if current_range.end.next_row() == new_row {
6017 edges.bottom = px(0.);
6018 };
6019 paint_highlight(
6020 current_range.start,
6021 current_range.end,
6022 current_background,
6023 edges,
6024 );
6025 let edges = Edges {
6026 top: if current_range.end.next_row() != new_row {
6027 px(1.)
6028 } else {
6029 px(0.)
6030 },
6031 bottom: px(1.),
6032 ..Default::default()
6033 };
6034 current_paint = Some((new_background, new_row..new_row, edges));
6035 continue;
6036 } else {
6037 current_range.end = current_range.end.next_row();
6038 }
6039 }
6040 None => {
6041 let edges = Edges {
6042 top: px(1.),
6043 bottom: px(1.),
6044 ..Default::default()
6045 };
6046 current_paint = Some((new_background, new_row..new_row, edges))
6047 }
6048 };
6049 }
6050 if let Some((color, range, edges)) = current_paint {
6051 paint_highlight(range.start, range.end, color, edges);
6052 }
6053
6054 for (guide_x, active) in layout.wrap_guides.iter() {
6055 let color = if *active {
6056 cx.theme().colors().editor_active_wrap_guide
6057 } else {
6058 cx.theme().colors().editor_wrap_guide
6059 };
6060 window.paint_quad(fill(
6061 Bounds {
6062 origin: point(*guide_x, layout.position_map.text_hitbox.origin.y),
6063 size: size(px(1.), layout.position_map.text_hitbox.size.height),
6064 },
6065 color,
6066 ));
6067 }
6068 }
6069 })
6070 }
6071
6072 fn paint_indent_guides(
6073 &mut self,
6074 layout: &mut EditorLayout,
6075 window: &mut Window,
6076 cx: &mut App,
6077 ) {
6078 let Some(indent_guides) = &layout.indent_guides else {
6079 return;
6080 };
6081
6082 let faded_color = |color: Hsla, alpha: f32| {
6083 let mut faded = color;
6084 faded.a = alpha;
6085 faded
6086 };
6087
6088 for indent_guide in indent_guides {
6089 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
6090 let settings = &indent_guide.settings;
6091
6092 // TODO fixed for now, expose them through themes later
6093 const INDENT_AWARE_ALPHA: f32 = 0.2;
6094 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
6095 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
6096 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
6097
6098 let line_color = match (settings.coloring, indent_guide.active) {
6099 (IndentGuideColoring::Disabled, _) => None,
6100 (IndentGuideColoring::Fixed, false) => {
6101 Some(cx.theme().colors().editor_indent_guide)
6102 }
6103 (IndentGuideColoring::Fixed, true) => {
6104 Some(cx.theme().colors().editor_indent_guide_active)
6105 }
6106 (IndentGuideColoring::IndentAware, false) => {
6107 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
6108 }
6109 (IndentGuideColoring::IndentAware, true) => {
6110 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
6111 }
6112 };
6113
6114 let background_color = match (settings.background_coloring, indent_guide.active) {
6115 (IndentGuideBackgroundColoring::Disabled, _) => None,
6116 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
6117 indent_accent_colors,
6118 INDENT_AWARE_BACKGROUND_ALPHA,
6119 )),
6120 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
6121 indent_accent_colors,
6122 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
6123 )),
6124 };
6125
6126 let mut line_indicator_width = 0.;
6127 if let Some(requested_line_width) = settings.visible_line_width(indent_guide.active) {
6128 if let Some(color) = line_color {
6129 window.paint_quad(fill(
6130 Bounds {
6131 origin: indent_guide.origin,
6132 size: size(px(requested_line_width as f32), indent_guide.length),
6133 },
6134 color,
6135 ));
6136 line_indicator_width = requested_line_width as f32;
6137 }
6138 }
6139
6140 if let Some(color) = background_color {
6141 let width = indent_guide.single_indent_width - px(line_indicator_width);
6142 window.paint_quad(fill(
6143 Bounds {
6144 origin: point(
6145 indent_guide.origin.x + px(line_indicator_width),
6146 indent_guide.origin.y,
6147 ),
6148 size: size(width, indent_guide.length),
6149 },
6150 color,
6151 ));
6152 }
6153 }
6154 }
6155
6156 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6157 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
6158
6159 let line_height = layout.position_map.line_height;
6160 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
6161
6162 for line_layout in layout.line_numbers.values() {
6163 for LineNumberSegment {
6164 shaped_line,
6165 hitbox,
6166 } in &line_layout.segments
6167 {
6168 let Some(hitbox) = hitbox else {
6169 continue;
6170 };
6171
6172 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
6173 let color = cx.theme().colors().editor_hover_line_number;
6174
6175 let line = self.shape_line_number(shaped_line.text.clone(), color, window);
6176 line.paint(
6177 hitbox.origin,
6178 line_height,
6179 TextAlign::Left,
6180 None,
6181 window,
6182 cx,
6183 )
6184 .log_err()
6185 } else {
6186 shaped_line
6187 .paint(
6188 hitbox.origin,
6189 line_height,
6190 TextAlign::Left,
6191 None,
6192 window,
6193 cx,
6194 )
6195 .log_err()
6196 }) else {
6197 continue;
6198 };
6199
6200 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
6201 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
6202 if is_singleton {
6203 window.set_cursor_style(CursorStyle::IBeam, hitbox);
6204 } else {
6205 window.set_cursor_style(CursorStyle::PointingHand, hitbox);
6206 }
6207 }
6208 }
6209 }
6210
6211 fn paint_gutter_diff_hunks(
6212 layout: &mut EditorLayout,
6213 split_side: Option<SplitSide>,
6214 window: &mut Window,
6215 cx: &mut App,
6216 ) {
6217 if layout.display_hunks.is_empty() {
6218 return;
6219 }
6220
6221 let line_height = layout.position_map.line_height;
6222 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6223 for (hunk, hitbox) in &layout.display_hunks {
6224 let hunk_to_paint = match hunk {
6225 DisplayDiffHunk::Folded { .. } => {
6226 let hunk_bounds = Self::diff_hunk_bounds(
6227 &layout.position_map.snapshot,
6228 line_height,
6229 layout.gutter_hitbox.bounds,
6230 hunk,
6231 );
6232 Some((
6233 hunk_bounds,
6234 cx.theme().colors().version_control_modified,
6235 Corners::all(px(0.)),
6236 DiffHunkStatus::modified_none(),
6237 ))
6238 }
6239 DisplayDiffHunk::Unfolded {
6240 status,
6241 display_row_range,
6242 ..
6243 } => hitbox.as_ref().map(|hunk_hitbox| {
6244 let color = match split_side {
6245 Some(SplitSide::Left) => cx.theme().colors().version_control_deleted,
6246 Some(SplitSide::Right) => cx.theme().colors().version_control_added,
6247 None => match status.kind {
6248 DiffHunkStatusKind::Added => {
6249 cx.theme().colors().version_control_added
6250 }
6251 DiffHunkStatusKind::Modified => {
6252 cx.theme().colors().version_control_modified
6253 }
6254 DiffHunkStatusKind::Deleted => {
6255 cx.theme().colors().version_control_deleted
6256 }
6257 },
6258 };
6259 match status.kind {
6260 DiffHunkStatusKind::Deleted if display_row_range.is_empty() => (
6261 Bounds::new(
6262 point(
6263 hunk_hitbox.origin.x - hunk_hitbox.size.width,
6264 hunk_hitbox.origin.y,
6265 ),
6266 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
6267 ),
6268 color,
6269 Corners::all(1. * line_height),
6270 *status,
6271 ),
6272 _ => (hunk_hitbox.bounds, color, Corners::all(px(0.)), *status),
6273 }
6274 }),
6275 };
6276
6277 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
6278 // Flatten the background color with the editor color to prevent
6279 // elements below transparent hunks from showing through
6280 let flattened_background_color = cx
6281 .theme()
6282 .colors()
6283 .editor_background
6284 .blend(background_color);
6285
6286 if !Self::diff_hunk_hollow(status, cx) {
6287 window.paint_quad(quad(
6288 hunk_bounds,
6289 corner_radii,
6290 flattened_background_color,
6291 Edges::default(),
6292 transparent_black(),
6293 BorderStyle::default(),
6294 ));
6295 } else {
6296 let flattened_unstaged_background_color = cx
6297 .theme()
6298 .colors()
6299 .editor_background
6300 .blend(background_color.opacity(0.3));
6301
6302 window.paint_quad(quad(
6303 hunk_bounds,
6304 corner_radii,
6305 flattened_unstaged_background_color,
6306 Edges::all(px(1.0)),
6307 flattened_background_color,
6308 BorderStyle::Solid,
6309 ));
6310 }
6311 }
6312 }
6313 });
6314 }
6315
6316 fn gutter_strip_width(line_height: Pixels) -> Pixels {
6317 (0.275 * line_height).floor()
6318 }
6319
6320 fn diff_hunk_bounds(
6321 snapshot: &EditorSnapshot,
6322 line_height: Pixels,
6323 gutter_bounds: Bounds<Pixels>,
6324 hunk: &DisplayDiffHunk,
6325 ) -> Bounds<Pixels> {
6326 let scroll_position = snapshot.scroll_position();
6327 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
6328 let gutter_strip_width = Self::gutter_strip_width(line_height);
6329
6330 match hunk {
6331 DisplayDiffHunk::Folded { display_row, .. } => {
6332 let start_y = (display_row.as_f64() * ScrollPixelOffset::from(line_height)
6333 - scroll_top)
6334 .into();
6335 let end_y = start_y + line_height;
6336 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6337 let highlight_size = size(gutter_strip_width, end_y - start_y);
6338 Bounds::new(highlight_origin, highlight_size)
6339 }
6340 DisplayDiffHunk::Unfolded {
6341 display_row_range,
6342 status,
6343 ..
6344 } => {
6345 if status.is_deleted() && display_row_range.is_empty() {
6346 let row = display_row_range.start;
6347
6348 let offset = ScrollPixelOffset::from(line_height / 2.);
6349 let start_y =
6350 (row.as_f64() * ScrollPixelOffset::from(line_height) - offset - scroll_top)
6351 .into();
6352 let end_y = start_y + line_height;
6353
6354 let width = (0.35 * line_height).floor();
6355 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6356 let highlight_size = size(width, end_y - start_y);
6357 Bounds::new(highlight_origin, highlight_size)
6358 } else {
6359 let start_row = display_row_range.start;
6360 let end_row = display_row_range.end;
6361 // If we're in a multibuffer, row range span might include an
6362 // excerpt header, so if we were to draw the marker straight away,
6363 // the hunk might include the rows of that header.
6364 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
6365 // Instead, we simply check whether the range we're dealing with includes
6366 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
6367 let end_row_in_current_excerpt = snapshot
6368 .blocks_in_range(start_row..end_row)
6369 .find_map(|(start_row, block)| {
6370 if matches!(
6371 block,
6372 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
6373 ) {
6374 Some(start_row)
6375 } else {
6376 None
6377 }
6378 })
6379 .unwrap_or(end_row);
6380
6381 let start_y = (start_row.as_f64() * ScrollPixelOffset::from(line_height)
6382 - scroll_top)
6383 .into();
6384 let end_y = Pixels::from(
6385 end_row_in_current_excerpt.as_f64() * ScrollPixelOffset::from(line_height)
6386 - scroll_top,
6387 );
6388
6389 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6390 let highlight_size = size(gutter_strip_width, end_y - start_y);
6391 Bounds::new(highlight_origin, highlight_size)
6392 }
6393 }
6394 }
6395 }
6396
6397 fn paint_gutter_indicators(
6398 &self,
6399 layout: &mut EditorLayout,
6400 window: &mut Window,
6401 cx: &mut App,
6402 ) {
6403 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6404 window.with_element_namespace("crease_toggles", |window| {
6405 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
6406 crease_toggle.paint(window, cx);
6407 }
6408 });
6409
6410 window.with_element_namespace("expand_toggles", |window| {
6411 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
6412 expand_toggle.paint(window, cx);
6413 }
6414 });
6415
6416 for breakpoint in layout.breakpoints.iter_mut() {
6417 breakpoint.paint(window, cx);
6418 }
6419
6420 for test_indicator in layout.test_indicators.iter_mut() {
6421 test_indicator.paint(window, cx);
6422 }
6423
6424 if let Some(diff_review_button) = layout.diff_review_button.as_mut() {
6425 diff_review_button.paint(window, cx);
6426 }
6427 });
6428 }
6429
6430 fn paint_gutter_highlights(
6431 &self,
6432 layout: &mut EditorLayout,
6433 window: &mut Window,
6434 cx: &mut App,
6435 ) {
6436 for (_, hunk_hitbox) in &layout.display_hunks {
6437 if let Some(hunk_hitbox) = hunk_hitbox
6438 && !self
6439 .editor
6440 .read(cx)
6441 .buffer()
6442 .read(cx)
6443 .all_diff_hunks_expanded()
6444 {
6445 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
6446 }
6447 }
6448
6449 let show_git_gutter = layout
6450 .position_map
6451 .snapshot
6452 .show_git_diff_gutter
6453 .unwrap_or_else(|| {
6454 matches!(
6455 ProjectSettings::get_global(cx).git.git_gutter,
6456 GitGutterSetting::TrackedFiles
6457 )
6458 });
6459 if show_git_gutter {
6460 Self::paint_gutter_diff_hunks(layout, self.split_side, window, cx)
6461 }
6462
6463 let highlight_width = 0.275 * layout.position_map.line_height;
6464 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
6465 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6466 for (range, color) in &layout.highlighted_gutter_ranges {
6467 let start_row = if range.start.row() < layout.visible_display_row_range.start {
6468 layout.visible_display_row_range.start - DisplayRow(1)
6469 } else {
6470 range.start.row()
6471 };
6472 let end_row = if range.end.row() > layout.visible_display_row_range.end {
6473 layout.visible_display_row_range.end + DisplayRow(1)
6474 } else {
6475 range.end.row()
6476 };
6477
6478 let start_y = layout.gutter_hitbox.top()
6479 + Pixels::from(
6480 start_row.0 as f64
6481 * ScrollPixelOffset::from(layout.position_map.line_height)
6482 - layout.position_map.scroll_pixel_position.y,
6483 );
6484 let end_y = layout.gutter_hitbox.top()
6485 + Pixels::from(
6486 (end_row.0 + 1) as f64
6487 * ScrollPixelOffset::from(layout.position_map.line_height)
6488 - layout.position_map.scroll_pixel_position.y,
6489 );
6490 let bounds = Bounds::from_corners(
6491 point(layout.gutter_hitbox.left(), start_y),
6492 point(layout.gutter_hitbox.left() + highlight_width, end_y),
6493 );
6494 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
6495 }
6496 });
6497 }
6498
6499 fn paint_blamed_display_rows(
6500 &self,
6501 layout: &mut EditorLayout,
6502 window: &mut Window,
6503 cx: &mut App,
6504 ) {
6505 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
6506 return;
6507 };
6508
6509 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6510 for mut blame_element in blamed_display_rows.into_iter() {
6511 blame_element.paint(window, cx);
6512 }
6513 })
6514 }
6515
6516 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6517 window.with_content_mask(
6518 Some(ContentMask {
6519 bounds: layout.position_map.text_hitbox.bounds,
6520 }),
6521 |window| {
6522 let editor = self.editor.read(cx);
6523 if editor.mouse_cursor_hidden {
6524 window.set_window_cursor_style(CursorStyle::None);
6525 } else if let SelectionDragState::ReadyToDrag {
6526 mouse_down_time, ..
6527 } = &editor.selection_drag_state
6528 {
6529 let drag_and_drop_delay = Duration::from_millis(
6530 EditorSettings::get_global(cx)
6531 .drag_and_drop_selection
6532 .delay
6533 .0,
6534 );
6535 if mouse_down_time.elapsed() >= drag_and_drop_delay {
6536 window.set_cursor_style(
6537 CursorStyle::DragCopy,
6538 &layout.position_map.text_hitbox,
6539 );
6540 }
6541 } else if matches!(
6542 editor.selection_drag_state,
6543 SelectionDragState::Dragging { .. }
6544 ) {
6545 window
6546 .set_cursor_style(CursorStyle::DragCopy, &layout.position_map.text_hitbox);
6547 } else if editor
6548 .hovered_link_state
6549 .as_ref()
6550 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
6551 {
6552 window.set_cursor_style(
6553 CursorStyle::PointingHand,
6554 &layout.position_map.text_hitbox,
6555 );
6556 } else {
6557 window.set_cursor_style(CursorStyle::IBeam, &layout.position_map.text_hitbox);
6558 };
6559
6560 self.paint_lines_background(layout, window, cx);
6561 let invisible_display_ranges = self.paint_highlights(layout, window, cx);
6562 self.paint_document_colors(layout, window);
6563 self.paint_lines(&invisible_display_ranges, layout, window, cx);
6564 self.paint_redactions(layout, window);
6565 self.paint_cursors(layout, window, cx);
6566 self.paint_inline_diagnostics(layout, window, cx);
6567 self.paint_inline_blame(layout, window, cx);
6568 self.paint_inline_code_actions(layout, window, cx);
6569 self.paint_diff_hunk_controls(layout, window, cx);
6570 window.with_element_namespace("crease_trailers", |window| {
6571 for trailer in layout.crease_trailers.iter_mut().flatten() {
6572 trailer.element.paint(window, cx);
6573 }
6574 });
6575 },
6576 )
6577 }
6578
6579 fn paint_highlights(
6580 &mut self,
6581 layout: &mut EditorLayout,
6582 window: &mut Window,
6583 cx: &mut App,
6584 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
6585 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6586 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
6587 let line_end_overshoot = 0.15 * layout.position_map.line_height;
6588 for (range, color) in &layout.highlighted_ranges {
6589 self.paint_highlighted_range(
6590 range.clone(),
6591 true,
6592 *color,
6593 Pixels::ZERO,
6594 line_end_overshoot,
6595 layout,
6596 window,
6597 );
6598 }
6599
6600 let corner_radius = if EditorSettings::get_global(cx).rounded_selection {
6601 0.15 * layout.position_map.line_height
6602 } else {
6603 Pixels::ZERO
6604 };
6605
6606 for (player_color, selections) in &layout.selections {
6607 for selection in selections.iter() {
6608 self.paint_highlighted_range(
6609 selection.range.clone(),
6610 true,
6611 player_color.selection,
6612 corner_radius,
6613 corner_radius * 2.,
6614 layout,
6615 window,
6616 );
6617
6618 if selection.is_local && !selection.range.is_empty() {
6619 invisible_display_ranges.push(selection.range.clone());
6620 }
6621 }
6622 }
6623 invisible_display_ranges
6624 })
6625 }
6626
6627 fn paint_lines(
6628 &mut self,
6629 invisible_display_ranges: &[Range<DisplayPoint>],
6630 layout: &mut EditorLayout,
6631 window: &mut Window,
6632 cx: &mut App,
6633 ) {
6634 let whitespace_setting = self
6635 .editor
6636 .read(cx)
6637 .buffer
6638 .read(cx)
6639 .language_settings(cx)
6640 .show_whitespaces;
6641
6642 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6643 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6644 line_with_invisibles.draw(
6645 layout,
6646 row,
6647 layout.content_origin,
6648 whitespace_setting,
6649 invisible_display_ranges,
6650 window,
6651 cx,
6652 )
6653 }
6654
6655 for line_element in &mut layout.line_elements {
6656 line_element.paint(window, cx);
6657 }
6658 }
6659
6660 fn paint_sticky_headers(
6661 &mut self,
6662 layout: &mut EditorLayout,
6663 window: &mut Window,
6664 cx: &mut App,
6665 ) {
6666 let Some(mut sticky_headers) = layout.sticky_headers.take() else {
6667 return;
6668 };
6669
6670 if sticky_headers.lines.is_empty() {
6671 layout.sticky_headers = Some(sticky_headers);
6672 return;
6673 }
6674
6675 let whitespace_setting = self
6676 .editor
6677 .read(cx)
6678 .buffer
6679 .read(cx)
6680 .language_settings(cx)
6681 .show_whitespaces;
6682 sticky_headers.paint(layout, whitespace_setting, window, cx);
6683
6684 let sticky_header_hitboxes: Vec<Hitbox> = sticky_headers
6685 .lines
6686 .iter()
6687 .map(|line| line.hitbox.clone())
6688 .collect();
6689 let hovered_hitbox = sticky_header_hitboxes
6690 .iter()
6691 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6692
6693 window.on_mouse_event(move |_: &MouseMoveEvent, phase, window, _cx| {
6694 if !phase.bubble() {
6695 return;
6696 }
6697
6698 let current_hover = sticky_header_hitboxes
6699 .iter()
6700 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6701 if hovered_hitbox != current_hover {
6702 window.refresh();
6703 }
6704 });
6705
6706 for (line_index, line) in sticky_headers.lines.iter().enumerate() {
6707 let editor = self.editor.clone();
6708 let hitbox = line.hitbox.clone();
6709 let target_anchor = line.target_anchor;
6710 window.on_mouse_event(move |event: &MouseDownEvent, phase, window, cx| {
6711 if !phase.bubble() {
6712 return;
6713 }
6714
6715 if event.button == MouseButton::Left && hitbox.is_hovered(window) {
6716 editor.update(cx, |editor, cx| {
6717 editor.change_selections(
6718 SelectionEffects::scroll(Autoscroll::top_relative(line_index)),
6719 window,
6720 cx,
6721 |selections| selections.select_ranges([target_anchor..target_anchor]),
6722 );
6723 cx.stop_propagation();
6724 });
6725 }
6726 });
6727 }
6728
6729 let text_bounds = layout.position_map.text_hitbox.bounds;
6730 let border_top = text_bounds.top()
6731 + sticky_headers.lines.last().unwrap().offset
6732 + layout.position_map.line_height;
6733 let separator_height = px(1.);
6734 let border_bounds = Bounds::from_corners(
6735 point(layout.gutter_hitbox.bounds.left(), border_top),
6736 point(text_bounds.right(), border_top + separator_height),
6737 );
6738 window.paint_quad(fill(border_bounds, cx.theme().colors().border_variant));
6739
6740 layout.sticky_headers = Some(sticky_headers);
6741 }
6742
6743 fn paint_lines_background(
6744 &mut self,
6745 layout: &mut EditorLayout,
6746 window: &mut Window,
6747 cx: &mut App,
6748 ) {
6749 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6750 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6751 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
6752 }
6753 }
6754
6755 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
6756 if layout.redacted_ranges.is_empty() {
6757 return;
6758 }
6759
6760 let line_end_overshoot = layout.line_end_overshoot();
6761
6762 // A softer than perfect black
6763 let redaction_color = gpui::rgb(0x0e1111);
6764
6765 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6766 for range in layout.redacted_ranges.iter() {
6767 self.paint_highlighted_range(
6768 range.clone(),
6769 true,
6770 redaction_color.into(),
6771 Pixels::ZERO,
6772 line_end_overshoot,
6773 layout,
6774 window,
6775 );
6776 }
6777 });
6778 }
6779
6780 fn paint_document_colors(&self, layout: &mut EditorLayout, window: &mut Window) {
6781 let Some((colors_render_mode, image_colors)) = &layout.document_colors else {
6782 return;
6783 };
6784 if image_colors.is_empty()
6785 || colors_render_mode == &DocumentColorsRenderMode::None
6786 || colors_render_mode == &DocumentColorsRenderMode::Inlay
6787 {
6788 return;
6789 }
6790
6791 let line_end_overshoot = layout.line_end_overshoot();
6792
6793 for (range, color) in image_colors {
6794 match colors_render_mode {
6795 DocumentColorsRenderMode::Inlay | DocumentColorsRenderMode::None => return,
6796 DocumentColorsRenderMode::Background => {
6797 self.paint_highlighted_range(
6798 range.clone(),
6799 true,
6800 *color,
6801 Pixels::ZERO,
6802 line_end_overshoot,
6803 layout,
6804 window,
6805 );
6806 }
6807 DocumentColorsRenderMode::Border => {
6808 self.paint_highlighted_range(
6809 range.clone(),
6810 false,
6811 *color,
6812 Pixels::ZERO,
6813 line_end_overshoot,
6814 layout,
6815 window,
6816 );
6817 }
6818 }
6819 }
6820 }
6821
6822 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6823 for cursor in &mut layout.visible_cursors {
6824 cursor.paint(layout.content_origin, window, cx);
6825 }
6826 }
6827
6828 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6829 let Some(scrollbars_layout) = layout.scrollbars_layout.take() else {
6830 return;
6831 };
6832 let any_scrollbar_dragged = self.editor.read(cx).scroll_manager.any_scrollbar_dragged();
6833
6834 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
6835 let hitbox = &scrollbar_layout.hitbox;
6836 if scrollbars_layout.visible {
6837 let scrollbar_edges = match axis {
6838 ScrollbarAxis::Horizontal => Edges {
6839 top: Pixels::ZERO,
6840 right: Pixels::ZERO,
6841 bottom: Pixels::ZERO,
6842 left: Pixels::ZERO,
6843 },
6844 ScrollbarAxis::Vertical => Edges {
6845 top: Pixels::ZERO,
6846 right: Pixels::ZERO,
6847 bottom: Pixels::ZERO,
6848 left: ScrollbarLayout::BORDER_WIDTH,
6849 },
6850 };
6851
6852 window.paint_layer(hitbox.bounds, |window| {
6853 window.paint_quad(quad(
6854 hitbox.bounds,
6855 Corners::default(),
6856 cx.theme().colors().scrollbar_track_background,
6857 scrollbar_edges,
6858 cx.theme().colors().scrollbar_track_border,
6859 BorderStyle::Solid,
6860 ));
6861
6862 if axis == ScrollbarAxis::Vertical {
6863 let fast_markers =
6864 self.collect_fast_scrollbar_markers(layout, scrollbar_layout, cx);
6865 // Refresh slow scrollbar markers in the background. Below, we
6866 // paint whatever markers have already been computed.
6867 self.refresh_slow_scrollbar_markers(layout, scrollbar_layout, window, cx);
6868
6869 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
6870 for marker in markers.iter().chain(&fast_markers) {
6871 let mut marker = marker.clone();
6872 marker.bounds.origin += hitbox.origin;
6873 window.paint_quad(marker);
6874 }
6875 }
6876
6877 if let Some(thumb_bounds) = scrollbar_layout.thumb_bounds {
6878 let scrollbar_thumb_color = match scrollbar_layout.thumb_state {
6879 ScrollbarThumbState::Dragging => {
6880 cx.theme().colors().scrollbar_thumb_active_background
6881 }
6882 ScrollbarThumbState::Hovered => {
6883 cx.theme().colors().scrollbar_thumb_hover_background
6884 }
6885 ScrollbarThumbState::Idle => {
6886 cx.theme().colors().scrollbar_thumb_background
6887 }
6888 };
6889 window.paint_quad(quad(
6890 thumb_bounds,
6891 Corners::default(),
6892 scrollbar_thumb_color,
6893 scrollbar_edges,
6894 cx.theme().colors().scrollbar_thumb_border,
6895 BorderStyle::Solid,
6896 ));
6897
6898 if any_scrollbar_dragged {
6899 window.set_window_cursor_style(CursorStyle::Arrow);
6900 } else {
6901 window.set_cursor_style(CursorStyle::Arrow, hitbox);
6902 }
6903 }
6904 })
6905 }
6906 }
6907
6908 window.on_mouse_event({
6909 let editor = self.editor.clone();
6910 let scrollbars_layout = scrollbars_layout.clone();
6911
6912 let mut mouse_position = window.mouse_position();
6913 move |event: &MouseMoveEvent, phase, window, cx| {
6914 if phase == DispatchPhase::Capture {
6915 return;
6916 }
6917
6918 editor.update(cx, |editor, cx| {
6919 if let Some((scrollbar_layout, axis)) = event
6920 .pressed_button
6921 .filter(|button| *button == MouseButton::Left)
6922 .and(editor.scroll_manager.dragging_scrollbar_axis())
6923 .and_then(|axis| {
6924 scrollbars_layout
6925 .iter_scrollbars()
6926 .find(|(_, a)| *a == axis)
6927 })
6928 {
6929 let ScrollbarLayout {
6930 hitbox,
6931 text_unit_size,
6932 ..
6933 } = scrollbar_layout;
6934
6935 let old_position = mouse_position.along(axis);
6936 let new_position = event.position.along(axis);
6937 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
6938 .contains(&old_position)
6939 {
6940 let position = editor.scroll_position(cx).apply_along(axis, |p| {
6941 (p + ScrollOffset::from(
6942 (new_position - old_position) / *text_unit_size,
6943 ))
6944 .max(0.)
6945 });
6946 editor.set_scroll_position(position, window, cx);
6947 }
6948
6949 editor.scroll_manager.show_scrollbars(window, cx);
6950 cx.stop_propagation();
6951 } else if let Some((layout, axis)) = scrollbars_layout
6952 .get_hovered_axis(window)
6953 .filter(|_| !event.dragging())
6954 {
6955 if layout.thumb_hovered(&event.position) {
6956 editor
6957 .scroll_manager
6958 .set_hovered_scroll_thumb_axis(axis, cx);
6959 } else {
6960 editor.scroll_manager.reset_scrollbar_state(cx);
6961 }
6962
6963 editor.scroll_manager.show_scrollbars(window, cx);
6964 } else {
6965 editor.scroll_manager.reset_scrollbar_state(cx);
6966 }
6967
6968 mouse_position = event.position;
6969 })
6970 }
6971 });
6972
6973 if any_scrollbar_dragged {
6974 window.on_mouse_event({
6975 let editor = self.editor.clone();
6976 move |_: &MouseUpEvent, phase, window, cx| {
6977 if phase == DispatchPhase::Capture {
6978 return;
6979 }
6980
6981 editor.update(cx, |editor, cx| {
6982 if let Some((_, axis)) = scrollbars_layout.get_hovered_axis(window) {
6983 editor
6984 .scroll_manager
6985 .set_hovered_scroll_thumb_axis(axis, cx);
6986 } else {
6987 editor.scroll_manager.reset_scrollbar_state(cx);
6988 }
6989 cx.stop_propagation();
6990 });
6991 }
6992 });
6993 } else {
6994 window.on_mouse_event({
6995 let editor = self.editor.clone();
6996
6997 move |event: &MouseDownEvent, phase, window, cx| {
6998 if phase == DispatchPhase::Capture {
6999 return;
7000 }
7001 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
7002 else {
7003 return;
7004 };
7005
7006 let ScrollbarLayout {
7007 hitbox,
7008 visible_range,
7009 text_unit_size,
7010 thumb_bounds,
7011 ..
7012 } = scrollbar_layout;
7013
7014 let Some(thumb_bounds) = thumb_bounds else {
7015 return;
7016 };
7017
7018 editor.update(cx, |editor, cx| {
7019 editor
7020 .scroll_manager
7021 .set_dragged_scroll_thumb_axis(axis, cx);
7022
7023 let event_position = event.position.along(axis);
7024
7025 if event_position < thumb_bounds.origin.along(axis)
7026 || thumb_bounds.bottom_right().along(axis) < event_position
7027 {
7028 let center_position = ((event_position - hitbox.origin.along(axis))
7029 / *text_unit_size)
7030 .round() as u32;
7031 let start_position = center_position.saturating_sub(
7032 (visible_range.end - visible_range.start) as u32 / 2,
7033 );
7034
7035 let position = editor
7036 .scroll_position(cx)
7037 .apply_along(axis, |_| start_position as ScrollOffset);
7038
7039 editor.set_scroll_position(position, window, cx);
7040 } else {
7041 editor.scroll_manager.show_scrollbars(window, cx);
7042 }
7043
7044 cx.stop_propagation();
7045 });
7046 }
7047 });
7048 }
7049 }
7050
7051 fn collect_fast_scrollbar_markers(
7052 &self,
7053 layout: &EditorLayout,
7054 scrollbar_layout: &ScrollbarLayout,
7055 cx: &mut App,
7056 ) -> Vec<PaintQuad> {
7057 const LIMIT: usize = 100;
7058 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
7059 return vec![];
7060 }
7061 let cursor_ranges = layout
7062 .cursors
7063 .iter()
7064 .map(|(point, color)| ColoredRange {
7065 start: point.row(),
7066 end: point.row(),
7067 color: *color,
7068 })
7069 .collect_vec();
7070 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
7071 }
7072
7073 fn refresh_slow_scrollbar_markers(
7074 &self,
7075 layout: &EditorLayout,
7076 scrollbar_layout: &ScrollbarLayout,
7077 window: &mut Window,
7078 cx: &mut App,
7079 ) {
7080 self.editor.update(cx, |editor, cx| {
7081 if editor.buffer_kind(cx) != ItemBufferKind::Singleton
7082 || !editor
7083 .scrollbar_marker_state
7084 .should_refresh(scrollbar_layout.hitbox.size)
7085 {
7086 return;
7087 }
7088
7089 let scrollbar_layout = scrollbar_layout.clone();
7090 let background_highlights = editor.background_highlights.clone();
7091 let snapshot = layout.position_map.snapshot.clone();
7092 let theme = cx.theme().clone();
7093 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
7094
7095 editor.scrollbar_marker_state.dirty = false;
7096 editor.scrollbar_marker_state.pending_refresh =
7097 Some(cx.spawn_in(window, async move |editor, cx| {
7098 let scrollbar_size = scrollbar_layout.hitbox.size;
7099 let scrollbar_markers = cx
7100 .background_spawn(async move {
7101 let max_point = snapshot.display_snapshot.buffer_snapshot().max_point();
7102 let mut marker_quads = Vec::new();
7103 if scrollbar_settings.git_diff {
7104 let marker_row_ranges =
7105 snapshot.buffer_snapshot().diff_hunks().map(|hunk| {
7106 let start_display_row =
7107 MultiBufferPoint::new(hunk.row_range.start.0, 0)
7108 .to_display_point(&snapshot.display_snapshot)
7109 .row();
7110 let mut end_display_row =
7111 MultiBufferPoint::new(hunk.row_range.end.0, 0)
7112 .to_display_point(&snapshot.display_snapshot)
7113 .row();
7114 if end_display_row != start_display_row {
7115 end_display_row.0 -= 1;
7116 }
7117 let color = match &hunk.status().kind {
7118 DiffHunkStatusKind::Added => {
7119 theme.colors().version_control_added
7120 }
7121 DiffHunkStatusKind::Modified => {
7122 theme.colors().version_control_modified
7123 }
7124 DiffHunkStatusKind::Deleted => {
7125 theme.colors().version_control_deleted
7126 }
7127 };
7128 ColoredRange {
7129 start: start_display_row,
7130 end: end_display_row,
7131 color,
7132 }
7133 });
7134
7135 marker_quads.extend(
7136 scrollbar_layout
7137 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
7138 );
7139 }
7140
7141 for (background_highlight_id, (_, background_ranges)) in
7142 background_highlights.iter()
7143 {
7144 let is_search_highlights = *background_highlight_id
7145 == HighlightKey::BufferSearchHighlights;
7146 let is_text_highlights =
7147 *background_highlight_id == HighlightKey::SelectedTextHighlight;
7148 let is_symbol_occurrences = *background_highlight_id
7149 == HighlightKey::DocumentHighlightRead
7150 || *background_highlight_id
7151 == HighlightKey::DocumentHighlightWrite;
7152 if (is_search_highlights && scrollbar_settings.search_results)
7153 || (is_text_highlights && scrollbar_settings.selected_text)
7154 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
7155 {
7156 let mut color = theme.status().info;
7157 if is_symbol_occurrences {
7158 color.fade_out(0.5);
7159 }
7160 let marker_row_ranges = background_ranges.iter().map(|range| {
7161 let display_start = range
7162 .start
7163 .to_display_point(&snapshot.display_snapshot);
7164 let display_end =
7165 range.end.to_display_point(&snapshot.display_snapshot);
7166 ColoredRange {
7167 start: display_start.row(),
7168 end: display_end.row(),
7169 color,
7170 }
7171 });
7172 marker_quads.extend(
7173 scrollbar_layout
7174 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
7175 );
7176 }
7177 }
7178
7179 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
7180 let diagnostics = snapshot
7181 .buffer_snapshot()
7182 .diagnostics_in_range::<Point>(Point::zero()..max_point)
7183 // Don't show diagnostics the user doesn't care about
7184 .filter(|diagnostic| {
7185 match (
7186 scrollbar_settings.diagnostics,
7187 diagnostic.diagnostic.severity,
7188 ) {
7189 (ScrollbarDiagnostics::All, _) => true,
7190 (
7191 ScrollbarDiagnostics::Error,
7192 lsp::DiagnosticSeverity::ERROR,
7193 ) => true,
7194 (
7195 ScrollbarDiagnostics::Warning,
7196 lsp::DiagnosticSeverity::ERROR
7197 | lsp::DiagnosticSeverity::WARNING,
7198 ) => true,
7199 (
7200 ScrollbarDiagnostics::Information,
7201 lsp::DiagnosticSeverity::ERROR
7202 | lsp::DiagnosticSeverity::WARNING
7203 | lsp::DiagnosticSeverity::INFORMATION,
7204 ) => true,
7205 (_, _) => false,
7206 }
7207 })
7208 // We want to sort by severity, in order to paint the most severe diagnostics last.
7209 .sorted_by_key(|diagnostic| {
7210 std::cmp::Reverse(diagnostic.diagnostic.severity)
7211 });
7212
7213 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
7214 let start_display = diagnostic
7215 .range
7216 .start
7217 .to_display_point(&snapshot.display_snapshot);
7218 let end_display = diagnostic
7219 .range
7220 .end
7221 .to_display_point(&snapshot.display_snapshot);
7222 let color = match diagnostic.diagnostic.severity {
7223 lsp::DiagnosticSeverity::ERROR => theme.status().error,
7224 lsp::DiagnosticSeverity::WARNING => theme.status().warning,
7225 lsp::DiagnosticSeverity::INFORMATION => theme.status().info,
7226 _ => theme.status().hint,
7227 };
7228 ColoredRange {
7229 start: start_display.row(),
7230 end: end_display.row(),
7231 color,
7232 }
7233 });
7234 marker_quads.extend(
7235 scrollbar_layout
7236 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
7237 );
7238 }
7239
7240 Arc::from(marker_quads)
7241 })
7242 .await;
7243
7244 editor.update(cx, |editor, cx| {
7245 editor.scrollbar_marker_state.markers = scrollbar_markers;
7246 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
7247 editor.scrollbar_marker_state.pending_refresh = None;
7248 cx.notify();
7249 })?;
7250
7251 Ok(())
7252 }));
7253 });
7254 }
7255
7256 fn paint_highlighted_range(
7257 &self,
7258 range: Range<DisplayPoint>,
7259 fill: bool,
7260 color: Hsla,
7261 corner_radius: Pixels,
7262 line_end_overshoot: Pixels,
7263 layout: &EditorLayout,
7264 window: &mut Window,
7265 ) {
7266 let start_row = layout.visible_display_row_range.start;
7267 let end_row = layout.visible_display_row_range.end;
7268 if range.start != range.end {
7269 let row_range = if range.end.column() == 0 {
7270 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
7271 } else {
7272 cmp::max(range.start.row(), start_row)
7273 ..cmp::min(range.end.row().next_row(), end_row)
7274 };
7275
7276 let highlighted_range = HighlightedRange {
7277 color,
7278 line_height: layout.position_map.line_height,
7279 corner_radius,
7280 start_y: layout.content_origin.y
7281 + Pixels::from(
7282 (row_range.start.as_f64() - layout.position_map.scroll_position.y)
7283 * ScrollOffset::from(layout.position_map.line_height),
7284 ),
7285 lines: row_range
7286 .iter_rows()
7287 .map(|row| {
7288 let line_layout =
7289 &layout.position_map.line_layouts[row.minus(start_row) as usize];
7290 let alignment_offset =
7291 line_layout.alignment_offset(layout.text_align, layout.content_width);
7292 HighlightedRangeLine {
7293 start_x: if row == range.start.row() {
7294 layout.content_origin.x
7295 + Pixels::from(
7296 ScrollPixelOffset::from(
7297 line_layout.x_for_index(range.start.column() as usize)
7298 + alignment_offset,
7299 ) - layout.position_map.scroll_pixel_position.x,
7300 )
7301 } else {
7302 layout.content_origin.x + alignment_offset
7303 - Pixels::from(layout.position_map.scroll_pixel_position.x)
7304 },
7305 end_x: if row == range.end.row() {
7306 layout.content_origin.x
7307 + Pixels::from(
7308 ScrollPixelOffset::from(
7309 line_layout.x_for_index(range.end.column() as usize)
7310 + alignment_offset,
7311 ) - layout.position_map.scroll_pixel_position.x,
7312 )
7313 } else {
7314 Pixels::from(
7315 ScrollPixelOffset::from(
7316 layout.content_origin.x
7317 + line_layout.width
7318 + alignment_offset
7319 + line_end_overshoot,
7320 ) - layout.position_map.scroll_pixel_position.x,
7321 )
7322 },
7323 }
7324 })
7325 .collect(),
7326 };
7327
7328 highlighted_range.paint(fill, layout.position_map.text_hitbox.bounds, window);
7329 }
7330 }
7331
7332 fn paint_inline_diagnostics(
7333 &mut self,
7334 layout: &mut EditorLayout,
7335 window: &mut Window,
7336 cx: &mut App,
7337 ) {
7338 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
7339 inline_diagnostic.1.paint(window, cx);
7340 }
7341 }
7342
7343 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7344 if let Some(mut blame_layout) = layout.inline_blame_layout.take() {
7345 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7346 blame_layout.element.paint(window, cx);
7347 })
7348 }
7349 }
7350
7351 fn paint_inline_code_actions(
7352 &mut self,
7353 layout: &mut EditorLayout,
7354 window: &mut Window,
7355 cx: &mut App,
7356 ) {
7357 if let Some(mut inline_code_actions) = layout.inline_code_actions.take() {
7358 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7359 inline_code_actions.paint(window, cx);
7360 })
7361 }
7362 }
7363
7364 fn paint_diff_hunk_controls(
7365 &mut self,
7366 layout: &mut EditorLayout,
7367 window: &mut Window,
7368 cx: &mut App,
7369 ) {
7370 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
7371 diff_hunk_control.paint(window, cx);
7372 }
7373 }
7374
7375 fn paint_minimap(&self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7376 if let Some(mut layout) = layout.minimap.take() {
7377 let minimap_hitbox = layout.thumb_layout.hitbox.clone();
7378 let dragging_minimap = self.editor.read(cx).scroll_manager.is_dragging_minimap();
7379
7380 window.paint_layer(layout.thumb_layout.hitbox.bounds, |window| {
7381 window.with_element_namespace("minimap", |window| {
7382 layout.minimap.paint(window, cx);
7383 if let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds {
7384 let minimap_thumb_color = match layout.thumb_layout.thumb_state {
7385 ScrollbarThumbState::Idle => {
7386 cx.theme().colors().minimap_thumb_background
7387 }
7388 ScrollbarThumbState::Hovered => {
7389 cx.theme().colors().minimap_thumb_hover_background
7390 }
7391 ScrollbarThumbState::Dragging => {
7392 cx.theme().colors().minimap_thumb_active_background
7393 }
7394 };
7395 let minimap_thumb_border = match layout.thumb_border_style {
7396 MinimapThumbBorder::Full => Edges::all(ScrollbarLayout::BORDER_WIDTH),
7397 MinimapThumbBorder::LeftOnly => Edges {
7398 left: ScrollbarLayout::BORDER_WIDTH,
7399 ..Default::default()
7400 },
7401 MinimapThumbBorder::LeftOpen => Edges {
7402 right: ScrollbarLayout::BORDER_WIDTH,
7403 top: ScrollbarLayout::BORDER_WIDTH,
7404 bottom: ScrollbarLayout::BORDER_WIDTH,
7405 ..Default::default()
7406 },
7407 MinimapThumbBorder::RightOpen => Edges {
7408 left: ScrollbarLayout::BORDER_WIDTH,
7409 top: ScrollbarLayout::BORDER_WIDTH,
7410 bottom: ScrollbarLayout::BORDER_WIDTH,
7411 ..Default::default()
7412 },
7413 MinimapThumbBorder::None => Default::default(),
7414 };
7415
7416 window.paint_layer(minimap_hitbox.bounds, |window| {
7417 window.paint_quad(quad(
7418 thumb_bounds,
7419 Corners::default(),
7420 minimap_thumb_color,
7421 minimap_thumb_border,
7422 cx.theme().colors().minimap_thumb_border,
7423 BorderStyle::Solid,
7424 ));
7425 });
7426 }
7427 });
7428 });
7429
7430 if dragging_minimap {
7431 window.set_window_cursor_style(CursorStyle::Arrow);
7432 } else {
7433 window.set_cursor_style(CursorStyle::Arrow, &minimap_hitbox);
7434 }
7435
7436 let minimap_axis = ScrollbarAxis::Vertical;
7437 let pixels_per_line = Pixels::from(
7438 ScrollPixelOffset::from(minimap_hitbox.size.height) / layout.max_scroll_top,
7439 )
7440 .min(layout.minimap_line_height);
7441
7442 let mut mouse_position = window.mouse_position();
7443
7444 window.on_mouse_event({
7445 let editor = self.editor.clone();
7446
7447 let minimap_hitbox = minimap_hitbox.clone();
7448
7449 move |event: &MouseMoveEvent, phase, window, cx| {
7450 if phase == DispatchPhase::Capture {
7451 return;
7452 }
7453
7454 editor.update(cx, |editor, cx| {
7455 if event.pressed_button == Some(MouseButton::Left)
7456 && editor.scroll_manager.is_dragging_minimap()
7457 {
7458 let old_position = mouse_position.along(minimap_axis);
7459 let new_position = event.position.along(minimap_axis);
7460 if (minimap_hitbox.origin.along(minimap_axis)
7461 ..minimap_hitbox.bottom_right().along(minimap_axis))
7462 .contains(&old_position)
7463 {
7464 let position =
7465 editor.scroll_position(cx).apply_along(minimap_axis, |p| {
7466 (p + ScrollPixelOffset::from(
7467 (new_position - old_position) / pixels_per_line,
7468 ))
7469 .max(0.)
7470 });
7471
7472 editor.set_scroll_position(position, window, cx);
7473 }
7474 cx.stop_propagation();
7475 } else if minimap_hitbox.is_hovered(window) {
7476 editor.scroll_manager.set_is_hovering_minimap_thumb(
7477 !event.dragging()
7478 && layout
7479 .thumb_layout
7480 .thumb_bounds
7481 .is_some_and(|bounds| bounds.contains(&event.position)),
7482 cx,
7483 );
7484
7485 // Stop hover events from propagating to the
7486 // underlying editor if the minimap hitbox is hovered
7487 if !event.dragging() {
7488 cx.stop_propagation();
7489 }
7490 } else {
7491 editor.scroll_manager.hide_minimap_thumb(cx);
7492 }
7493 mouse_position = event.position;
7494 });
7495 }
7496 });
7497
7498 if dragging_minimap {
7499 window.on_mouse_event({
7500 let editor = self.editor.clone();
7501 move |event: &MouseUpEvent, phase, window, cx| {
7502 if phase == DispatchPhase::Capture {
7503 return;
7504 }
7505
7506 editor.update(cx, |editor, cx| {
7507 if minimap_hitbox.is_hovered(window) {
7508 editor.scroll_manager.set_is_hovering_minimap_thumb(
7509 layout
7510 .thumb_layout
7511 .thumb_bounds
7512 .is_some_and(|bounds| bounds.contains(&event.position)),
7513 cx,
7514 );
7515 } else {
7516 editor.scroll_manager.hide_minimap_thumb(cx);
7517 }
7518 cx.stop_propagation();
7519 });
7520 }
7521 });
7522 } else {
7523 window.on_mouse_event({
7524 let editor = self.editor.clone();
7525
7526 move |event: &MouseDownEvent, phase, window, cx| {
7527 if phase == DispatchPhase::Capture || !minimap_hitbox.is_hovered(window) {
7528 return;
7529 }
7530
7531 let event_position = event.position;
7532
7533 let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds else {
7534 return;
7535 };
7536
7537 editor.update(cx, |editor, cx| {
7538 if !thumb_bounds.contains(&event_position) {
7539 let click_position =
7540 event_position.relative_to(&minimap_hitbox.origin).y;
7541
7542 let top_position = (click_position
7543 - thumb_bounds.size.along(minimap_axis) / 2.0)
7544 .max(Pixels::ZERO);
7545
7546 let scroll_offset = (layout.minimap_scroll_top
7547 + ScrollPixelOffset::from(
7548 top_position / layout.minimap_line_height,
7549 ))
7550 .min(layout.max_scroll_top);
7551
7552 let scroll_position = editor
7553 .scroll_position(cx)
7554 .apply_along(minimap_axis, |_| scroll_offset);
7555 editor.set_scroll_position(scroll_position, window, cx);
7556 }
7557
7558 editor.scroll_manager.set_is_dragging_minimap(cx);
7559 cx.stop_propagation();
7560 });
7561 }
7562 });
7563 }
7564 }
7565 }
7566
7567 fn paint_spacer_blocks(
7568 &mut self,
7569 layout: &mut EditorLayout,
7570 window: &mut Window,
7571 cx: &mut App,
7572 ) {
7573 for mut block in layout.spacer_blocks.drain(..) {
7574 let mut bounds = layout.hitbox.bounds;
7575 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
7576 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7577 block.element.paint(window, cx);
7578 })
7579 }
7580 }
7581
7582 fn paint_non_spacer_blocks(
7583 &mut self,
7584 layout: &mut EditorLayout,
7585 window: &mut Window,
7586 cx: &mut App,
7587 ) {
7588 for mut block in layout.blocks.drain(..) {
7589 if block.overlaps_gutter {
7590 block.element.paint(window, cx);
7591 } else {
7592 let mut bounds = layout.hitbox.bounds;
7593 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
7594 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7595 block.element.paint(window, cx);
7596 })
7597 }
7598 }
7599 }
7600
7601 fn paint_edit_prediction_popover(
7602 &mut self,
7603 layout: &mut EditorLayout,
7604 window: &mut Window,
7605 cx: &mut App,
7606 ) {
7607 if let Some(edit_prediction_popover) = layout.edit_prediction_popover.as_mut() {
7608 edit_prediction_popover.paint(window, cx);
7609 }
7610 }
7611
7612 fn paint_mouse_context_menu(
7613 &mut self,
7614 layout: &mut EditorLayout,
7615 window: &mut Window,
7616 cx: &mut App,
7617 ) {
7618 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
7619 mouse_context_menu.paint(window, cx);
7620 }
7621 }
7622
7623 fn paint_scroll_wheel_listener(
7624 &mut self,
7625 layout: &EditorLayout,
7626 window: &mut Window,
7627 cx: &mut App,
7628 ) {
7629 window.on_mouse_event({
7630 let position_map = layout.position_map.clone();
7631 let editor = self.editor.clone();
7632 let hitbox = layout.hitbox.clone();
7633 let mut delta = ScrollDelta::default();
7634
7635 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
7636 // accidentally turn off their scrolling.
7637 let base_scroll_sensitivity =
7638 EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
7639
7640 // Use a minimum fast_scroll_sensitivity for same reason above
7641 let fast_scroll_sensitivity = EditorSettings::get_global(cx)
7642 .fast_scroll_sensitivity
7643 .max(0.01);
7644
7645 move |event: &ScrollWheelEvent, phase, window, cx| {
7646 let scroll_sensitivity = {
7647 if event.modifiers.alt {
7648 fast_scroll_sensitivity
7649 } else {
7650 base_scroll_sensitivity
7651 }
7652 };
7653
7654 if phase == DispatchPhase::Bubble && hitbox.should_handle_scroll(window) {
7655 delta = delta.coalesce(event.delta);
7656 editor.update(cx, |editor, cx| {
7657 let position_map: &PositionMap = &position_map;
7658
7659 let line_height = position_map.line_height;
7660 let glyph_width = position_map.em_layout_width;
7661 let (delta, axis) = match delta {
7662 gpui::ScrollDelta::Pixels(mut pixels) => {
7663 //Trackpad
7664 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
7665 (pixels, axis)
7666 }
7667
7668 gpui::ScrollDelta::Lines(lines) => {
7669 //Not trackpad
7670 let pixels = point(lines.x * glyph_width, lines.y * line_height);
7671 (pixels, None)
7672 }
7673 };
7674
7675 let current_scroll_position = position_map.snapshot.scroll_position();
7676 let x = (current_scroll_position.x * ScrollPixelOffset::from(glyph_width)
7677 - ScrollPixelOffset::from(delta.x * scroll_sensitivity))
7678 / ScrollPixelOffset::from(glyph_width);
7679 let y = (current_scroll_position.y * ScrollPixelOffset::from(line_height)
7680 - ScrollPixelOffset::from(delta.y * scroll_sensitivity))
7681 / ScrollPixelOffset::from(line_height);
7682 let mut scroll_position =
7683 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
7684 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
7685 if forbid_vertical_scroll {
7686 scroll_position.y = current_scroll_position.y;
7687 }
7688
7689 if scroll_position != current_scroll_position {
7690 editor.scroll(scroll_position, axis, window, cx);
7691 cx.stop_propagation();
7692 } else if y < 0. {
7693 // Due to clamping, we may fail to detect cases of overscroll to the top;
7694 // We want the scroll manager to get an update in such cases and detect the change of direction
7695 // on the next frame.
7696 cx.notify();
7697 }
7698 });
7699 }
7700 }
7701 });
7702 }
7703
7704 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
7705 if layout.mode.is_minimap() {
7706 return;
7707 }
7708
7709 self.paint_scroll_wheel_listener(layout, window, cx);
7710
7711 window.on_mouse_event({
7712 let position_map = layout.position_map.clone();
7713 let editor = self.editor.clone();
7714 let line_numbers = layout.line_numbers.clone();
7715
7716 move |event: &MouseDownEvent, phase, window, cx| {
7717 if phase == DispatchPhase::Bubble {
7718 match event.button {
7719 MouseButton::Left => editor.update(cx, |editor, cx| {
7720 let pending_mouse_down = editor
7721 .pending_mouse_down
7722 .get_or_insert_with(Default::default)
7723 .clone();
7724
7725 *pending_mouse_down.borrow_mut() = Some(event.clone());
7726
7727 Self::mouse_left_down(
7728 editor,
7729 event,
7730 &position_map,
7731 line_numbers.as_ref(),
7732 window,
7733 cx,
7734 );
7735 }),
7736 MouseButton::Right => editor.update(cx, |editor, cx| {
7737 Self::mouse_right_down(editor, event, &position_map, window, cx);
7738 }),
7739 MouseButton::Middle => editor.update(cx, |editor, cx| {
7740 Self::mouse_middle_down(editor, event, &position_map, window, cx);
7741 }),
7742 _ => {}
7743 };
7744 }
7745 }
7746 });
7747
7748 window.on_mouse_event({
7749 let editor = self.editor.clone();
7750 let position_map = layout.position_map.clone();
7751
7752 move |event: &MouseUpEvent, phase, window, cx| {
7753 if phase == DispatchPhase::Bubble {
7754 editor.update(cx, |editor, cx| {
7755 Self::mouse_up(editor, event, &position_map, window, cx)
7756 });
7757 }
7758 }
7759 });
7760
7761 window.on_mouse_event({
7762 let editor = self.editor.clone();
7763 let position_map = layout.position_map.clone();
7764 let mut captured_mouse_down = None;
7765
7766 move |event: &MouseUpEvent, phase, window, cx| match phase {
7767 // Clear the pending mouse down during the capture phase,
7768 // so that it happens even if another event handler stops
7769 // propagation.
7770 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
7771 let pending_mouse_down = editor
7772 .pending_mouse_down
7773 .get_or_insert_with(Default::default)
7774 .clone();
7775
7776 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
7777 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
7778 captured_mouse_down = pending_mouse_down.take();
7779 window.refresh();
7780 }
7781 }),
7782 // Fire click handlers during the bubble phase.
7783 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
7784 if let Some(mouse_down) = captured_mouse_down.take() {
7785 let event = ClickEvent::Mouse(MouseClickEvent {
7786 down: mouse_down,
7787 up: event.clone(),
7788 });
7789 Self::click(editor, &event, &position_map, window, cx);
7790 }
7791 }),
7792 }
7793 });
7794
7795 window.on_mouse_event({
7796 let position_map = layout.position_map.clone();
7797 let editor = self.editor.clone();
7798
7799 move |event: &MousePressureEvent, phase, window, cx| {
7800 if phase == DispatchPhase::Bubble {
7801 editor.update(cx, |editor, cx| {
7802 Self::pressure_click(editor, &event, &position_map, window, cx);
7803 })
7804 }
7805 }
7806 });
7807
7808 window.on_mouse_event({
7809 let position_map = layout.position_map.clone();
7810 let editor = self.editor.clone();
7811 let split_side = self.split_side;
7812
7813 move |event: &MouseMoveEvent, phase, window, cx| {
7814 if phase == DispatchPhase::Bubble {
7815 editor.update(cx, |editor, cx| {
7816 if editor.hover_state.focused(window, cx) {
7817 return;
7818 }
7819 if event.pressed_button == Some(MouseButton::Left)
7820 || event.pressed_button == Some(MouseButton::Middle)
7821 {
7822 Self::mouse_dragged(editor, event, &position_map, window, cx)
7823 }
7824
7825 Self::mouse_moved(editor, event, &position_map, split_side, window, cx)
7826 });
7827 }
7828 }
7829 });
7830 }
7831
7832 fn shape_line_number(
7833 &self,
7834 text: SharedString,
7835 color: Hsla,
7836 window: &mut Window,
7837 ) -> ShapedLine {
7838 let run = TextRun {
7839 len: text.len(),
7840 font: self.style.text.font(),
7841 color,
7842 ..Default::default()
7843 };
7844 window.text_system().shape_line(
7845 text,
7846 self.style.text.font_size.to_pixels(window.rem_size()),
7847 &[run],
7848 None,
7849 )
7850 }
7851
7852 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
7853 let unstaged = status.has_secondary_hunk();
7854 let unstaged_hollow = matches!(
7855 ProjectSettings::get_global(cx).git.hunk_style,
7856 GitHunkStyleSetting::UnstagedHollow
7857 );
7858
7859 unstaged == unstaged_hollow
7860 }
7861
7862 #[cfg(debug_assertions)]
7863 fn layout_debug_ranges(
7864 selections: &mut Vec<(PlayerColor, Vec<SelectionLayout>)>,
7865 anchor_range: Range<Anchor>,
7866 display_snapshot: &DisplaySnapshot,
7867 cx: &App,
7868 ) {
7869 let theme = cx.theme();
7870 text::debug::GlobalDebugRanges::with_locked(|debug_ranges| {
7871 if debug_ranges.ranges.is_empty() {
7872 return;
7873 }
7874 let buffer_snapshot = &display_snapshot.buffer_snapshot();
7875 for (buffer, buffer_range, excerpt_id) in
7876 buffer_snapshot.range_to_buffer_ranges(anchor_range.start..=anchor_range.end)
7877 {
7878 let buffer_range =
7879 buffer.anchor_after(buffer_range.start)..buffer.anchor_before(buffer_range.end);
7880 selections.extend(debug_ranges.ranges.iter().flat_map(|debug_range| {
7881 let player_color = theme
7882 .players()
7883 .color_for_participant(debug_range.occurrence_index as u32 + 1);
7884 debug_range.ranges.iter().filter_map(move |range| {
7885 if range.start.buffer_id != Some(buffer.remote_id()) {
7886 return None;
7887 }
7888 let clipped_start = range.start.max(&buffer_range.start, buffer);
7889 let clipped_end = range.end.min(&buffer_range.end, buffer);
7890 let range = buffer_snapshot
7891 .anchor_range_in_excerpt(excerpt_id, *clipped_start..*clipped_end)?;
7892 let start = range.start.to_display_point(display_snapshot);
7893 let end = range.end.to_display_point(display_snapshot);
7894 let selection_layout = SelectionLayout {
7895 head: start,
7896 range: start..end,
7897 cursor_shape: CursorShape::Bar,
7898 is_newest: false,
7899 is_local: false,
7900 active_rows: start.row()..end.row(),
7901 user_name: Some(SharedString::new(debug_range.value.clone())),
7902 };
7903 Some((player_color, vec![selection_layout]))
7904 })
7905 }));
7906 }
7907 });
7908 }
7909}
7910
7911pub fn render_breadcrumb_text(
7912 mut segments: Vec<BreadcrumbText>,
7913 prefix: Option<gpui::AnyElement>,
7914 active_item: &dyn ItemHandle,
7915 multibuffer_header: bool,
7916 window: &mut Window,
7917 cx: &App,
7918) -> gpui::AnyElement {
7919 const MAX_SEGMENTS: usize = 12;
7920
7921 let element = h_flex().flex_grow().text_ui(cx);
7922
7923 let prefix_end_ix = cmp::min(segments.len(), MAX_SEGMENTS / 2);
7924 let suffix_start_ix = cmp::max(
7925 prefix_end_ix,
7926 segments.len().saturating_sub(MAX_SEGMENTS / 2),
7927 );
7928
7929 if suffix_start_ix > prefix_end_ix {
7930 segments.splice(
7931 prefix_end_ix..suffix_start_ix,
7932 Some(BreadcrumbText {
7933 text: "β―".into(),
7934 highlights: None,
7935 font: None,
7936 }),
7937 );
7938 }
7939
7940 let highlighted_segments = segments.into_iter().enumerate().map(|(index, segment)| {
7941 let mut text_style = window.text_style();
7942 if let Some(ref font) = segment.font {
7943 text_style.font_family = font.family.clone();
7944 text_style.font_features = font.features.clone();
7945 text_style.font_style = font.style;
7946 text_style.font_weight = font.weight;
7947 }
7948 text_style.color = Color::Muted.color(cx);
7949
7950 if index == 0
7951 && !workspace::TabBarSettings::get_global(cx).show
7952 && active_item.is_dirty(cx)
7953 && let Some(styled_element) = apply_dirty_filename_style(&segment, &text_style, cx)
7954 {
7955 return styled_element;
7956 }
7957
7958 StyledText::new(segment.text.replace('\n', " "))
7959 .with_default_highlights(&text_style, segment.highlights.unwrap_or_default())
7960 .into_any()
7961 });
7962
7963 let breadcrumbs = Itertools::intersperse_with(highlighted_segments, || {
7964 Label::new("βΊ").color(Color::Placeholder).into_any_element()
7965 });
7966
7967 let breadcrumbs_stack = h_flex()
7968 .gap_1()
7969 .when(multibuffer_header, |this| {
7970 this.pl_2()
7971 .border_l_1()
7972 .border_color(cx.theme().colors().border.opacity(0.6))
7973 })
7974 .children(breadcrumbs);
7975
7976 let breadcrumbs = if let Some(prefix) = prefix {
7977 h_flex().gap_1p5().child(prefix).child(breadcrumbs_stack)
7978 } else {
7979 breadcrumbs_stack
7980 };
7981
7982 let editor = active_item
7983 .downcast::<Editor>()
7984 .map(|editor| editor.downgrade());
7985
7986 let has_project_path = active_item.project_path(cx).is_some();
7987
7988 match editor {
7989 Some(editor) => element
7990 .id("breadcrumb_container")
7991 .when(!multibuffer_header, |this| this.overflow_x_scroll())
7992 .child(
7993 ButtonLike::new("toggle outline view")
7994 .child(breadcrumbs)
7995 .when(multibuffer_header, |this| {
7996 this.style(ButtonStyle::Transparent)
7997 })
7998 .when(!multibuffer_header, |this| {
7999 let focus_handle = editor.upgrade().unwrap().focus_handle(&cx);
8000
8001 this.tooltip(Tooltip::element(move |_window, cx| {
8002 v_flex()
8003 .gap_1()
8004 .child(
8005 h_flex()
8006 .gap_1()
8007 .justify_between()
8008 .child(Label::new("Show Symbol Outline"))
8009 .child(ui::KeyBinding::for_action_in(
8010 &zed_actions::outline::ToggleOutline,
8011 &focus_handle,
8012 cx,
8013 )),
8014 )
8015 .when(has_project_path, |this| {
8016 this.child(
8017 h_flex()
8018 .gap_1()
8019 .justify_between()
8020 .pt_1()
8021 .border_t_1()
8022 .border_color(cx.theme().colors().border_variant)
8023 .child(Label::new("Right-Click to Copy Path")),
8024 )
8025 })
8026 .into_any_element()
8027 }))
8028 .on_click({
8029 let editor = editor.clone();
8030 move |_, window, cx| {
8031 if let Some((editor, callback)) = editor
8032 .upgrade()
8033 .zip(zed_actions::outline::TOGGLE_OUTLINE.get())
8034 {
8035 callback(editor.to_any_view(), window, cx);
8036 }
8037 }
8038 })
8039 .when(has_project_path, |this| {
8040 this.on_right_click({
8041 let editor = editor.clone();
8042 move |_, _, cx| {
8043 if let Some(abs_path) = editor.upgrade().and_then(|editor| {
8044 editor.update(cx, |editor, cx| {
8045 editor.target_file_abs_path(cx)
8046 })
8047 }) {
8048 if let Some(path_str) = abs_path.to_str() {
8049 cx.write_to_clipboard(ClipboardItem::new_string(
8050 path_str.to_string(),
8051 ));
8052 }
8053 }
8054 }
8055 })
8056 })
8057 }),
8058 )
8059 .into_any_element(),
8060 None => element
8061 .h(rems_from_px(22.)) // Match the height and padding of the `ButtonLike` in the other arm.
8062 .pl_1()
8063 .child(breadcrumbs)
8064 .into_any_element(),
8065 }
8066}
8067
8068fn apply_dirty_filename_style(
8069 segment: &BreadcrumbText,
8070 text_style: &gpui::TextStyle,
8071 cx: &App,
8072) -> Option<gpui::AnyElement> {
8073 let text = segment.text.replace('\n', "β");
8074
8075 let filename_position = std::path::Path::new(&segment.text)
8076 .file_name()
8077 .and_then(|f| {
8078 let filename_str = f.to_string_lossy();
8079 segment.text.rfind(filename_str.as_ref())
8080 })?;
8081
8082 let bold_weight = FontWeight::BOLD;
8083 let default_color = Color::Default.color(cx);
8084
8085 if filename_position == 0 {
8086 let mut filename_style = text_style.clone();
8087 filename_style.font_weight = bold_weight;
8088 filename_style.color = default_color;
8089
8090 return Some(
8091 StyledText::new(text)
8092 .with_default_highlights(&filename_style, [])
8093 .into_any(),
8094 );
8095 }
8096
8097 let highlight_style = gpui::HighlightStyle {
8098 font_weight: Some(bold_weight),
8099 color: Some(default_color),
8100 ..Default::default()
8101 };
8102
8103 let highlight = vec![(filename_position..text.len(), highlight_style)];
8104 Some(
8105 StyledText::new(text)
8106 .with_default_highlights(text_style, highlight)
8107 .into_any(),
8108 )
8109}
8110
8111fn file_status_label_color(file_status: Option<FileStatus>) -> Color {
8112 file_status.map_or(Color::Default, |status| {
8113 if status.is_conflicted() {
8114 Color::Conflict
8115 } else if status.is_modified() {
8116 Color::Modified
8117 } else if status.is_deleted() {
8118 Color::Disabled
8119 } else if status.is_created() {
8120 Color::Created
8121 } else {
8122 Color::Default
8123 }
8124 })
8125}
8126
8127pub(crate) fn header_jump_data(
8128 editor_snapshot: &EditorSnapshot,
8129 block_row_start: DisplayRow,
8130 height: u32,
8131 first_excerpt: &ExcerptInfo,
8132 latest_selection_anchors: &HashMap<BufferId, Anchor>,
8133) -> JumpData {
8134 let jump_target = if let Some(anchor) = latest_selection_anchors.get(&first_excerpt.buffer_id)
8135 && let Some(range) = editor_snapshot.context_range_for_excerpt(anchor.excerpt_id)
8136 && let Some(buffer) = editor_snapshot
8137 .buffer_snapshot()
8138 .buffer_for_excerpt(anchor.excerpt_id)
8139 {
8140 JumpTargetInExcerptInput {
8141 id: anchor.excerpt_id,
8142 buffer,
8143 excerpt_start_anchor: range.start,
8144 jump_anchor: anchor.text_anchor,
8145 }
8146 } else {
8147 JumpTargetInExcerptInput {
8148 id: first_excerpt.id,
8149 buffer: &first_excerpt.buffer,
8150 excerpt_start_anchor: first_excerpt.range.context.start,
8151 jump_anchor: first_excerpt.range.primary.start,
8152 }
8153 };
8154 header_jump_data_inner(editor_snapshot, block_row_start, height, &jump_target)
8155}
8156
8157struct JumpTargetInExcerptInput<'a> {
8158 id: ExcerptId,
8159 buffer: &'a language::BufferSnapshot,
8160 excerpt_start_anchor: text::Anchor,
8161 jump_anchor: text::Anchor,
8162}
8163
8164fn header_jump_data_inner(
8165 snapshot: &EditorSnapshot,
8166 block_row_start: DisplayRow,
8167 height: u32,
8168 for_excerpt: &JumpTargetInExcerptInput,
8169) -> JumpData {
8170 let buffer = &for_excerpt.buffer;
8171 let jump_position = language::ToPoint::to_point(&for_excerpt.jump_anchor, buffer);
8172 let excerpt_start = for_excerpt.excerpt_start_anchor;
8173 let rows_from_excerpt_start = if for_excerpt.jump_anchor == excerpt_start {
8174 0
8175 } else {
8176 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
8177 jump_position.row.saturating_sub(excerpt_start_point.row)
8178 };
8179
8180 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
8181 .saturating_sub(
8182 snapshot
8183 .scroll_anchor
8184 .scroll_position(&snapshot.display_snapshot)
8185 .y as u32,
8186 );
8187
8188 JumpData::MultiBufferPoint {
8189 excerpt_id: for_excerpt.id,
8190 anchor: for_excerpt.jump_anchor,
8191 position: jump_position,
8192 line_offset_from_top,
8193 }
8194}
8195
8196pub(crate) fn render_buffer_header(
8197 editor: &Entity<Editor>,
8198 for_excerpt: &ExcerptInfo,
8199 is_folded: bool,
8200 is_selected: bool,
8201 is_sticky: bool,
8202 jump_data: JumpData,
8203 window: &mut Window,
8204 cx: &mut App,
8205) -> impl IntoElement {
8206 let editor_read = editor.read(cx);
8207 let multi_buffer = editor_read.buffer.read(cx);
8208 let is_read_only = editor_read.read_only(cx);
8209 let editor_handle: &dyn ItemHandle = editor;
8210
8211 let breadcrumbs = if is_selected {
8212 editor_read.breadcrumbs_inner(cx)
8213 } else {
8214 None
8215 };
8216
8217 let file_status = multi_buffer
8218 .all_diff_hunks_expanded()
8219 .then(|| editor_read.status_for_buffer_id(for_excerpt.buffer_id, cx))
8220 .flatten();
8221 let indicator = multi_buffer
8222 .buffer(for_excerpt.buffer_id)
8223 .and_then(|buffer| {
8224 let buffer = buffer.read(cx);
8225 let indicator_color = match (buffer.has_conflict(), buffer.is_dirty()) {
8226 (true, _) => Some(Color::Warning),
8227 (_, true) => Some(Color::Accent),
8228 (false, false) => None,
8229 };
8230 indicator_color.map(|indicator_color| Indicator::dot().color(indicator_color))
8231 });
8232
8233 let include_root = editor_read
8234 .project
8235 .as_ref()
8236 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
8237 .unwrap_or_default();
8238 let file = for_excerpt.buffer.file();
8239 let can_open_excerpts = file.is_none_or(|file| file.can_open());
8240 let path_style = file.map(|file| file.path_style(cx));
8241 let relative_path = for_excerpt.buffer.resolve_file_path(include_root, cx);
8242 let (parent_path, filename) = if let Some(path) = &relative_path {
8243 if let Some(path_style) = path_style {
8244 let (dir, file_name) = path_style.split(path);
8245 (dir.map(|dir| dir.to_owned()), Some(file_name.to_owned()))
8246 } else {
8247 (None, Some(path.clone()))
8248 }
8249 } else {
8250 (None, None)
8251 };
8252 let focus_handle = editor_read.focus_handle(cx);
8253 let colors = cx.theme().colors();
8254
8255 let header = div()
8256 .id(("buffer-header", for_excerpt.buffer_id.to_proto()))
8257 .p_1()
8258 .w_full()
8259 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
8260 .child(
8261 h_flex()
8262 .group("buffer-header-group")
8263 .size_full()
8264 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
8265 .pl_1()
8266 .pr_2()
8267 .rounded_sm()
8268 .gap_1p5()
8269 .when(is_sticky, |el| el.shadow_md())
8270 .border_1()
8271 .map(|border| {
8272 let border_color =
8273 if is_selected && is_folded && focus_handle.contains_focused(window, cx) {
8274 colors.border_focused
8275 } else {
8276 colors.border
8277 };
8278 border.border_color(border_color)
8279 })
8280 .bg(colors.editor_subheader_background)
8281 .hover(|style| style.bg(colors.element_hover))
8282 .map(|header| {
8283 let editor = editor.clone();
8284 let buffer_id = for_excerpt.buffer_id;
8285 let toggle_chevron_icon =
8286 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
8287 let button_size = rems_from_px(28.);
8288
8289 header.child(
8290 div()
8291 .hover(|style| style.bg(colors.element_selected))
8292 .rounded_xs()
8293 .child(
8294 ButtonLike::new("toggle-buffer-fold")
8295 .style(ButtonStyle::Transparent)
8296 .height(button_size.into())
8297 .width(button_size)
8298 .children(toggle_chevron_icon)
8299 .tooltip({
8300 let focus_handle = focus_handle.clone();
8301 let is_folded_for_tooltip = is_folded;
8302 move |_window, cx| {
8303 Tooltip::with_meta_in(
8304 if is_folded_for_tooltip {
8305 "Unfold Excerpt"
8306 } else {
8307 "Fold Excerpt"
8308 },
8309 Some(&ToggleFold),
8310 format!(
8311 "{} to toggle all",
8312 text_for_keystroke(
8313 &Modifiers::alt(),
8314 "click",
8315 cx
8316 )
8317 ),
8318 &focus_handle,
8319 cx,
8320 )
8321 }
8322 })
8323 .on_click(move |event, window, cx| {
8324 if event.modifiers().alt {
8325 editor.update(cx, |editor, cx| {
8326 editor.toggle_fold_all(&ToggleFoldAll, window, cx);
8327 });
8328 } else {
8329 if is_folded {
8330 editor.update(cx, |editor, cx| {
8331 editor.unfold_buffer(buffer_id, cx);
8332 });
8333 } else {
8334 editor.update(cx, |editor, cx| {
8335 editor.fold_buffer(buffer_id, cx);
8336 });
8337 }
8338 }
8339 }),
8340 ),
8341 )
8342 })
8343 .children(
8344 editor_read
8345 .addons
8346 .values()
8347 .filter_map(|addon| {
8348 addon.render_buffer_header_controls(for_excerpt, window, cx)
8349 })
8350 .take(1),
8351 )
8352 .when(!is_read_only, |this| {
8353 this.child(
8354 h_flex()
8355 .size_3()
8356 .justify_center()
8357 .flex_shrink_0()
8358 .children(indicator),
8359 )
8360 })
8361 .child(
8362 h_flex()
8363 .cursor_pointer()
8364 .id("path_header_block")
8365 .min_w_0()
8366 .size_full()
8367 .gap_1()
8368 .justify_between()
8369 .overflow_hidden()
8370 .child(h_flex().min_w_0().flex_1().gap_0p5().overflow_hidden().map(
8371 |path_header| {
8372 let filename = filename
8373 .map(SharedString::from)
8374 .unwrap_or_else(|| "untitled".into());
8375
8376 let full_path = match parent_path.as_deref() {
8377 Some(parent) if !parent.is_empty() => {
8378 format!("{}{}", parent, filename.as_str())
8379 }
8380 _ => filename.as_str().to_string(),
8381 };
8382
8383 path_header
8384 .child(
8385 ButtonLike::new("filename-button")
8386 .when(ItemSettings::get_global(cx).file_icons, |this| {
8387 let path = path::Path::new(filename.as_str());
8388 let icon = FileIcons::get_icon(path, cx)
8389 .unwrap_or_default();
8390
8391 this.child(
8392 Icon::from_path(icon).color(Color::Muted),
8393 )
8394 })
8395 .child(
8396 Label::new(filename)
8397 .single_line()
8398 .color(file_status_label_color(file_status))
8399 .buffer_font(cx)
8400 .when(
8401 file_status.is_some_and(|s| s.is_deleted()),
8402 |label| label.strikethrough(),
8403 ),
8404 )
8405 .tooltip(move |_, cx| {
8406 Tooltip::with_meta(
8407 "Open File",
8408 None,
8409 full_path.clone(),
8410 cx,
8411 )
8412 })
8413 .on_click(window.listener_for(editor, {
8414 let jump_data = jump_data.clone();
8415 move |editor, e: &ClickEvent, window, cx| {
8416 editor.open_excerpts_common(
8417 Some(jump_data.clone()),
8418 e.modifiers().secondary(),
8419 window,
8420 cx,
8421 );
8422 }
8423 })),
8424 )
8425 .when_some(parent_path, |then, path| {
8426 then.child(
8427 Label::new(path)
8428 .buffer_font(cx)
8429 .truncate_start()
8430 .color(
8431 if file_status
8432 .is_some_and(FileStatus::is_deleted)
8433 {
8434 Color::Custom(colors.text_disabled)
8435 } else {
8436 Color::Custom(colors.text_muted)
8437 },
8438 ),
8439 )
8440 })
8441 .when(!for_excerpt.buffer.capability.editable(), |el| {
8442 el.child(Icon::new(IconName::FileLock).color(Color::Muted))
8443 })
8444 .when_some(breadcrumbs, |then, breadcrumbs| {
8445 then.child(render_breadcrumb_text(
8446 breadcrumbs,
8447 None,
8448 editor_handle,
8449 true,
8450 window,
8451 cx,
8452 ))
8453 })
8454 },
8455 ))
8456 .when(can_open_excerpts && relative_path.is_some(), |this| {
8457 this.child(
8458 div()
8459 .when(!is_selected, |this| {
8460 this.visible_on_hover("buffer-header-group")
8461 })
8462 .child(
8463 Button::new("open-file-button", "Open File")
8464 .style(ButtonStyle::OutlinedGhost)
8465 .when(is_selected, |this| {
8466 this.key_binding(KeyBinding::for_action_in(
8467 &OpenExcerpts,
8468 &focus_handle,
8469 cx,
8470 ))
8471 })
8472 .on_click(window.listener_for(editor, {
8473 let jump_data = jump_data.clone();
8474 move |editor, e: &ClickEvent, window, cx| {
8475 editor.open_excerpts_common(
8476 Some(jump_data.clone()),
8477 e.modifiers().secondary(),
8478 window,
8479 cx,
8480 );
8481 }
8482 })),
8483 ),
8484 )
8485 })
8486 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
8487 .on_click(window.listener_for(editor, {
8488 let buffer_id = for_excerpt.buffer_id;
8489 move |editor, e: &ClickEvent, window, cx| {
8490 if e.modifiers().alt {
8491 editor.open_excerpts_common(
8492 Some(jump_data.clone()),
8493 e.modifiers().secondary(),
8494 window,
8495 cx,
8496 );
8497 return;
8498 }
8499
8500 if is_folded {
8501 editor.unfold_buffer(buffer_id, cx);
8502 } else {
8503 editor.fold_buffer(buffer_id, cx);
8504 }
8505 }
8506 })),
8507 ),
8508 );
8509
8510 let file = for_excerpt.buffer.file().cloned();
8511 let editor = editor.clone();
8512
8513 right_click_menu("buffer-header-context-menu")
8514 .trigger(move |_, _, _| header)
8515 .menu(move |window, cx| {
8516 let menu_context = focus_handle.clone();
8517 let editor = editor.clone();
8518 let file = file.clone();
8519 ContextMenu::build(window, cx, move |mut menu, window, cx| {
8520 if let Some(file) = file
8521 && let Some(project) = editor.read(cx).project()
8522 && let Some(worktree) =
8523 project.read(cx).worktree_for_id(file.worktree_id(cx), cx)
8524 {
8525 let path_style = file.path_style(cx);
8526 let worktree = worktree.read(cx);
8527 let relative_path = file.path();
8528 let entry_for_path = worktree.entry_for_path(relative_path);
8529 let abs_path = entry_for_path.map(|e| {
8530 e.canonical_path
8531 .as_deref()
8532 .map_or_else(|| worktree.absolutize(relative_path), Path::to_path_buf)
8533 });
8534 let has_relative_path = worktree.root_entry().is_some_and(Entry::is_dir);
8535
8536 let parent_abs_path = abs_path
8537 .as_ref()
8538 .and_then(|abs_path| Some(abs_path.parent()?.to_path_buf()));
8539 let relative_path = has_relative_path
8540 .then_some(relative_path)
8541 .map(ToOwned::to_owned);
8542
8543 let visible_in_project_panel = relative_path.is_some() && worktree.is_visible();
8544 let reveal_in_project_panel = entry_for_path
8545 .filter(|_| visible_in_project_panel)
8546 .map(|entry| entry.id);
8547 menu = menu
8548 .when_some(abs_path, |menu, abs_path| {
8549 menu.entry(
8550 "Copy Path",
8551 Some(Box::new(zed_actions::workspace::CopyPath)),
8552 window.handler_for(&editor, move |_, _, cx| {
8553 cx.write_to_clipboard(ClipboardItem::new_string(
8554 abs_path.to_string_lossy().into_owned(),
8555 ));
8556 }),
8557 )
8558 })
8559 .when_some(relative_path, |menu, relative_path| {
8560 menu.entry(
8561 "Copy Relative Path",
8562 Some(Box::new(zed_actions::workspace::CopyRelativePath)),
8563 window.handler_for(&editor, move |_, _, cx| {
8564 cx.write_to_clipboard(ClipboardItem::new_string(
8565 relative_path.display(path_style).to_string(),
8566 ));
8567 }),
8568 )
8569 })
8570 .when(
8571 reveal_in_project_panel.is_some() || parent_abs_path.is_some(),
8572 |menu| menu.separator(),
8573 )
8574 .when_some(reveal_in_project_panel, |menu, entry_id| {
8575 menu.entry(
8576 "Reveal In Project Panel",
8577 Some(Box::new(RevealInProjectPanel::default())),
8578 window.handler_for(&editor, move |editor, _, cx| {
8579 if let Some(project) = &mut editor.project {
8580 project.update(cx, |_, cx| {
8581 cx.emit(project::Event::RevealInProjectPanel(entry_id))
8582 });
8583 }
8584 }),
8585 )
8586 })
8587 .when_some(parent_abs_path, |menu, parent_abs_path| {
8588 menu.entry(
8589 "Open in Terminal",
8590 Some(Box::new(OpenInTerminal)),
8591 window.handler_for(&editor, move |_, window, cx| {
8592 window.dispatch_action(
8593 OpenTerminal {
8594 working_directory: parent_abs_path.clone(),
8595 local: false,
8596 }
8597 .boxed_clone(),
8598 cx,
8599 );
8600 }),
8601 )
8602 });
8603 }
8604
8605 menu.context(menu_context)
8606 })
8607 })
8608}
8609
8610pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
8611
8612impl AcceptEditPredictionBinding {
8613 pub fn keystroke(&self) -> Option<&KeybindingKeystroke> {
8614 if let Some(binding) = self.0.as_ref() {
8615 match &binding.keystrokes() {
8616 [keystroke, ..] => Some(keystroke),
8617 _ => None,
8618 }
8619 } else {
8620 None
8621 }
8622 }
8623}
8624
8625fn prepaint_gutter_button(
8626 mut button: AnyElement,
8627 row: DisplayRow,
8628 line_height: Pixels,
8629 gutter_dimensions: &GutterDimensions,
8630 scroll_position: gpui::Point<ScrollOffset>,
8631 gutter_hitbox: &Hitbox,
8632 window: &mut Window,
8633 cx: &mut App,
8634) -> AnyElement {
8635 let available_space = size(
8636 AvailableSpace::MinContent,
8637 AvailableSpace::Definite(line_height),
8638 );
8639 let indicator_size = button.layout_as_root(available_space, window, cx);
8640 let git_gutter_width = EditorElement::gutter_strip_width(line_height)
8641 + gutter_dimensions
8642 .git_blame_entries_width
8643 .unwrap_or_default();
8644
8645 let x = git_gutter_width + px(2.);
8646
8647 let mut y =
8648 Pixels::from((row.as_f64() - scroll_position.y) * ScrollPixelOffset::from(line_height));
8649 y += (line_height - indicator_size.height) / 2.;
8650
8651 button.prepaint_as_root(
8652 gutter_hitbox.origin + point(x, y),
8653 available_space,
8654 window,
8655 cx,
8656 );
8657 button
8658}
8659
8660fn render_inline_blame_entry(
8661 blame_entry: BlameEntry,
8662 style: &EditorStyle,
8663 cx: &mut App,
8664) -> Option<AnyElement> {
8665 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
8666 renderer.render_inline_blame_entry(&style.text, blame_entry, cx)
8667}
8668
8669fn render_blame_entry_popover(
8670 blame_entry: BlameEntry,
8671 scroll_handle: ScrollHandle,
8672 commit_message: Option<ParsedCommitMessage>,
8673 markdown: Entity<Markdown>,
8674 workspace: WeakEntity<Workspace>,
8675 blame: &Entity<GitBlame>,
8676 buffer: BufferId,
8677 window: &mut Window,
8678 cx: &mut App,
8679) -> Option<AnyElement> {
8680 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
8681 let blame = blame.read(cx);
8682 let repository = blame.repository(cx, buffer)?;
8683 renderer.render_blame_entry_popover(
8684 blame_entry,
8685 scroll_handle,
8686 commit_message,
8687 markdown,
8688 repository,
8689 workspace,
8690 window,
8691 cx,
8692 )
8693}
8694
8695fn render_blame_entry(
8696 ix: usize,
8697 blame: &Entity<GitBlame>,
8698 blame_entry: BlameEntry,
8699 style: &EditorStyle,
8700 last_used_color: &mut Option<(Hsla, Oid)>,
8701 editor: Entity<Editor>,
8702 workspace: Entity<Workspace>,
8703 buffer: BufferId,
8704 renderer: &dyn BlameRenderer,
8705 window: &mut Window,
8706 cx: &mut App,
8707) -> Option<AnyElement> {
8708 let index: u32 = blame_entry.sha.into();
8709 let mut sha_color = cx.theme().players().color_for_participant(index).cursor;
8710
8711 // If the last color we used is the same as the one we get for this line, but
8712 // the commit SHAs are different, then we try again to get a different color.
8713 if let Some((color, sha)) = *last_used_color
8714 && sha != blame_entry.sha
8715 && color == sha_color
8716 {
8717 sha_color = cx.theme().players().color_for_participant(index + 1).cursor;
8718 }
8719 last_used_color.replace((sha_color, blame_entry.sha));
8720
8721 let blame = blame.read(cx);
8722 let details = blame.details_for_entry(buffer, &blame_entry);
8723 let repository = blame.repository(cx, buffer)?;
8724 renderer.render_blame_entry(
8725 &style.text,
8726 blame_entry,
8727 details,
8728 repository,
8729 workspace.downgrade(),
8730 editor,
8731 ix,
8732 sha_color,
8733 window,
8734 cx,
8735 )
8736}
8737
8738#[derive(Debug)]
8739pub(crate) struct LineWithInvisibles {
8740 fragments: SmallVec<[LineFragment; 1]>,
8741 invisibles: Vec<Invisible>,
8742 len: usize,
8743 pub(crate) width: Pixels,
8744 font_size: Pixels,
8745}
8746
8747enum LineFragment {
8748 Text(ShapedLine),
8749 Element {
8750 id: ChunkRendererId,
8751 element: Option<AnyElement>,
8752 size: Size<Pixels>,
8753 len: usize,
8754 },
8755}
8756
8757impl fmt::Debug for LineFragment {
8758 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
8759 match self {
8760 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
8761 LineFragment::Element { size, len, .. } => f
8762 .debug_struct("Element")
8763 .field("size", size)
8764 .field("len", len)
8765 .finish(),
8766 }
8767 }
8768}
8769
8770impl LineWithInvisibles {
8771 fn from_chunks<'a>(
8772 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
8773 editor_style: &EditorStyle,
8774 max_line_len: usize,
8775 max_line_count: usize,
8776 editor_mode: &EditorMode,
8777 text_width: Pixels,
8778 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8779 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
8780 window: &mut Window,
8781 cx: &mut App,
8782 ) -> Vec<Self> {
8783 let text_style = &editor_style.text;
8784 let mut layouts = Vec::with_capacity(max_line_count);
8785 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
8786 let mut line = String::new();
8787 let mut invisibles = Vec::new();
8788 let mut width = Pixels::ZERO;
8789 let mut len = 0;
8790 let mut styles = Vec::new();
8791 let mut non_whitespace_added = false;
8792 let mut row = 0;
8793 let mut line_exceeded_max_len = false;
8794 let font_size = text_style.font_size.to_pixels(window.rem_size());
8795 let min_contrast = EditorSettings::get_global(cx).minimum_contrast_for_highlights;
8796
8797 let ellipsis = SharedString::from("β―");
8798
8799 for highlighted_chunk in chunks.chain([HighlightedChunk {
8800 text: "\n",
8801 style: None,
8802 is_tab: false,
8803 is_inlay: false,
8804 replacement: None,
8805 }]) {
8806 if let Some(replacement) = highlighted_chunk.replacement {
8807 if !line.is_empty() {
8808 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8809 let text_runs: &[TextRun] = if segments.is_empty() {
8810 &styles
8811 } else {
8812 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8813 };
8814 let shaped_line = window.text_system().shape_line(
8815 line.clone().into(),
8816 font_size,
8817 text_runs,
8818 None,
8819 );
8820 width += shaped_line.width;
8821 len += shaped_line.len;
8822 fragments.push(LineFragment::Text(shaped_line));
8823 line.clear();
8824 styles.clear();
8825 }
8826
8827 match replacement {
8828 ChunkReplacement::Renderer(renderer) => {
8829 let available_width = if renderer.constrain_width {
8830 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
8831 ellipsis.clone()
8832 } else {
8833 SharedString::from(Arc::from(highlighted_chunk.text))
8834 };
8835 let shaped_line = window.text_system().shape_line(
8836 chunk,
8837 font_size,
8838 &[text_style.to_run(highlighted_chunk.text.len())],
8839 None,
8840 );
8841 AvailableSpace::Definite(shaped_line.width)
8842 } else {
8843 AvailableSpace::MinContent
8844 };
8845
8846 let mut element = (renderer.render)(&mut ChunkRendererContext {
8847 context: cx,
8848 window,
8849 max_width: text_width,
8850 });
8851 let line_height = text_style.line_height_in_pixels(window.rem_size());
8852 let size = element.layout_as_root(
8853 size(available_width, AvailableSpace::Definite(line_height)),
8854 window,
8855 cx,
8856 );
8857
8858 width += size.width;
8859 len += highlighted_chunk.text.len();
8860 fragments.push(LineFragment::Element {
8861 id: renderer.id,
8862 element: Some(element),
8863 size,
8864 len: highlighted_chunk.text.len(),
8865 });
8866 }
8867 ChunkReplacement::Str(x) => {
8868 let text_style = if let Some(style) = highlighted_chunk.style {
8869 Cow::Owned(text_style.clone().highlight(style))
8870 } else {
8871 Cow::Borrowed(text_style)
8872 };
8873
8874 let run = TextRun {
8875 len: x.len(),
8876 font: text_style.font(),
8877 color: text_style.color,
8878 background_color: text_style.background_color,
8879 underline: text_style.underline,
8880 strikethrough: text_style.strikethrough,
8881 };
8882 let line_layout = window
8883 .text_system()
8884 .shape_line(x, font_size, &[run], None)
8885 .with_len(highlighted_chunk.text.len());
8886
8887 width += line_layout.width;
8888 len += highlighted_chunk.text.len();
8889 fragments.push(LineFragment::Text(line_layout))
8890 }
8891 }
8892 } else {
8893 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
8894 if ix > 0 {
8895 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8896 let text_runs = if segments.is_empty() {
8897 &styles
8898 } else {
8899 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8900 };
8901 let shaped_line = window.text_system().shape_line(
8902 line.clone().into(),
8903 font_size,
8904 text_runs,
8905 None,
8906 );
8907 width += shaped_line.width;
8908 len += shaped_line.len;
8909 fragments.push(LineFragment::Text(shaped_line));
8910 layouts.push(Self {
8911 width: mem::take(&mut width),
8912 len: mem::take(&mut len),
8913 fragments: mem::take(&mut fragments),
8914 invisibles: std::mem::take(&mut invisibles),
8915 font_size,
8916 });
8917
8918 line.clear();
8919 styles.clear();
8920 row += 1;
8921 line_exceeded_max_len = false;
8922 non_whitespace_added = false;
8923 if row == max_line_count {
8924 return layouts;
8925 }
8926 }
8927
8928 if !line_chunk.is_empty() && !line_exceeded_max_len {
8929 let text_style = if let Some(style) = highlighted_chunk.style {
8930 Cow::Owned(text_style.clone().highlight(style))
8931 } else {
8932 Cow::Borrowed(text_style)
8933 };
8934
8935 if line.len() + line_chunk.len() > max_line_len {
8936 let mut chunk_len = max_line_len - line.len();
8937 while !line_chunk.is_char_boundary(chunk_len) {
8938 chunk_len -= 1;
8939 }
8940 line_chunk = &line_chunk[..chunk_len];
8941 line_exceeded_max_len = true;
8942 }
8943
8944 styles.push(TextRun {
8945 len: line_chunk.len(),
8946 font: text_style.font(),
8947 color: text_style.color,
8948 background_color: text_style.background_color,
8949 underline: text_style.underline,
8950 strikethrough: text_style.strikethrough,
8951 });
8952
8953 if editor_mode.is_full() && !highlighted_chunk.is_inlay {
8954 // Line wrap pads its contents with fake whitespaces,
8955 // avoid printing them
8956 let is_soft_wrapped = is_row_soft_wrapped(row);
8957 if highlighted_chunk.is_tab {
8958 if non_whitespace_added || !is_soft_wrapped {
8959 invisibles.push(Invisible::Tab {
8960 line_start_offset: line.len(),
8961 line_end_offset: line.len() + line_chunk.len(),
8962 });
8963 }
8964 } else {
8965 invisibles.extend(line_chunk.char_indices().filter_map(
8966 |(index, c)| {
8967 let is_whitespace = c.is_whitespace();
8968 non_whitespace_added |= !is_whitespace;
8969 if is_whitespace
8970 && (non_whitespace_added || !is_soft_wrapped)
8971 {
8972 Some(Invisible::Whitespace {
8973 line_offset: line.len() + index,
8974 })
8975 } else {
8976 None
8977 }
8978 },
8979 ))
8980 }
8981 }
8982
8983 line.push_str(line_chunk);
8984 }
8985 }
8986 }
8987 }
8988
8989 layouts
8990 }
8991
8992 /// Takes text runs and non-overlapping left-to-right background ranges with color.
8993 /// Returns new text runs with adjusted contrast as per background ranges.
8994 fn split_runs_by_bg_segments(
8995 text_runs: &[TextRun],
8996 bg_segments: &[(Range<DisplayPoint>, Hsla)],
8997 min_contrast: f32,
8998 start_col_offset: usize,
8999 ) -> Vec<TextRun> {
9000 let mut output_runs: Vec<TextRun> = Vec::with_capacity(text_runs.len());
9001 let mut line_col = start_col_offset;
9002 let mut segment_ix = 0usize;
9003
9004 for text_run in text_runs.iter() {
9005 let run_start_col = line_col;
9006 let run_end_col = run_start_col + text_run.len;
9007 while segment_ix < bg_segments.len()
9008 && (bg_segments[segment_ix].0.end.column() as usize) <= run_start_col
9009 {
9010 segment_ix += 1;
9011 }
9012 let mut cursor_col = run_start_col;
9013 let mut local_segment_ix = segment_ix;
9014 while local_segment_ix < bg_segments.len() {
9015 let (range, segment_color) = &bg_segments[local_segment_ix];
9016 let segment_start_col = range.start.column() as usize;
9017 let segment_end_col = range.end.column() as usize;
9018 if segment_start_col >= run_end_col {
9019 break;
9020 }
9021 if segment_start_col > cursor_col {
9022 let span_len = segment_start_col - cursor_col;
9023 output_runs.push(TextRun {
9024 len: span_len,
9025 font: text_run.font.clone(),
9026 color: text_run.color,
9027 background_color: text_run.background_color,
9028 underline: text_run.underline,
9029 strikethrough: text_run.strikethrough,
9030 });
9031 cursor_col = segment_start_col;
9032 }
9033 let segment_slice_end_col = segment_end_col.min(run_end_col);
9034 if segment_slice_end_col > cursor_col {
9035 let new_text_color =
9036 ensure_minimum_contrast(text_run.color, *segment_color, min_contrast);
9037 output_runs.push(TextRun {
9038 len: segment_slice_end_col - cursor_col,
9039 font: text_run.font.clone(),
9040 color: new_text_color,
9041 background_color: text_run.background_color,
9042 underline: text_run.underline,
9043 strikethrough: text_run.strikethrough,
9044 });
9045 cursor_col = segment_slice_end_col;
9046 }
9047 if segment_end_col >= run_end_col {
9048 break;
9049 }
9050 local_segment_ix += 1;
9051 }
9052 if cursor_col < run_end_col {
9053 output_runs.push(TextRun {
9054 len: run_end_col - cursor_col,
9055 font: text_run.font.clone(),
9056 color: text_run.color,
9057 background_color: text_run.background_color,
9058 underline: text_run.underline,
9059 strikethrough: text_run.strikethrough,
9060 });
9061 }
9062 line_col = run_end_col;
9063 segment_ix = local_segment_ix;
9064 }
9065 output_runs
9066 }
9067
9068 fn prepaint(
9069 &mut self,
9070 line_height: Pixels,
9071 scroll_position: gpui::Point<ScrollOffset>,
9072 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
9073 row: DisplayRow,
9074 content_origin: gpui::Point<Pixels>,
9075 line_elements: &mut SmallVec<[AnyElement; 1]>,
9076 window: &mut Window,
9077 cx: &mut App,
9078 ) {
9079 let line_y = f32::from(line_height) * Pixels::from(row.as_f64() - scroll_position.y);
9080 self.prepaint_with_custom_offset(
9081 line_height,
9082 scroll_pixel_position,
9083 content_origin,
9084 line_y,
9085 line_elements,
9086 window,
9087 cx,
9088 );
9089 }
9090
9091 fn prepaint_with_custom_offset(
9092 &mut self,
9093 line_height: Pixels,
9094 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
9095 content_origin: gpui::Point<Pixels>,
9096 line_y: Pixels,
9097 line_elements: &mut SmallVec<[AnyElement; 1]>,
9098 window: &mut Window,
9099 cx: &mut App,
9100 ) {
9101 let mut fragment_origin =
9102 content_origin + gpui::point(Pixels::from(-scroll_pixel_position.x), line_y);
9103 for fragment in &mut self.fragments {
9104 match fragment {
9105 LineFragment::Text(line) => {
9106 fragment_origin.x += line.width;
9107 }
9108 LineFragment::Element { element, size, .. } => {
9109 let mut element = element
9110 .take()
9111 .expect("you can't prepaint LineWithInvisibles twice");
9112
9113 // Center the element vertically within the line.
9114 let mut element_origin = fragment_origin;
9115 element_origin.y += (line_height - size.height) / 2.;
9116 element.prepaint_at(element_origin, window, cx);
9117 line_elements.push(element);
9118
9119 fragment_origin.x += size.width;
9120 }
9121 }
9122 }
9123 }
9124
9125 fn draw(
9126 &self,
9127 layout: &EditorLayout,
9128 row: DisplayRow,
9129 content_origin: gpui::Point<Pixels>,
9130 whitespace_setting: ShowWhitespaceSetting,
9131 selection_ranges: &[Range<DisplayPoint>],
9132 window: &mut Window,
9133 cx: &mut App,
9134 ) {
9135 self.draw_with_custom_offset(
9136 layout,
9137 row,
9138 content_origin,
9139 layout.position_map.line_height
9140 * (row.as_f64() - layout.position_map.scroll_position.y) as f32,
9141 whitespace_setting,
9142 selection_ranges,
9143 window,
9144 cx,
9145 );
9146 }
9147
9148 fn draw_with_custom_offset(
9149 &self,
9150 layout: &EditorLayout,
9151 row: DisplayRow,
9152 content_origin: gpui::Point<Pixels>,
9153 line_y: Pixels,
9154 whitespace_setting: ShowWhitespaceSetting,
9155 selection_ranges: &[Range<DisplayPoint>],
9156 window: &mut Window,
9157 cx: &mut App,
9158 ) {
9159 let line_height = layout.position_map.line_height;
9160 let mut fragment_origin = content_origin
9161 + gpui::point(
9162 Pixels::from(-layout.position_map.scroll_pixel_position.x),
9163 line_y,
9164 );
9165
9166 for fragment in &self.fragments {
9167 match fragment {
9168 LineFragment::Text(line) => {
9169 line.paint(
9170 fragment_origin,
9171 line_height,
9172 layout.text_align,
9173 Some(layout.content_width),
9174 window,
9175 cx,
9176 )
9177 .log_err();
9178 fragment_origin.x += line.width;
9179 }
9180 LineFragment::Element { size, .. } => {
9181 fragment_origin.x += size.width;
9182 }
9183 }
9184 }
9185
9186 self.draw_invisibles(
9187 selection_ranges,
9188 layout,
9189 content_origin,
9190 line_y,
9191 row,
9192 line_height,
9193 whitespace_setting,
9194 window,
9195 cx,
9196 );
9197 }
9198
9199 fn draw_background(
9200 &self,
9201 layout: &EditorLayout,
9202 row: DisplayRow,
9203 content_origin: gpui::Point<Pixels>,
9204 window: &mut Window,
9205 cx: &mut App,
9206 ) {
9207 let line_height = layout.position_map.line_height;
9208 let line_y = line_height * (row.as_f64() - layout.position_map.scroll_position.y) as f32;
9209
9210 let mut fragment_origin = content_origin
9211 + gpui::point(
9212 Pixels::from(-layout.position_map.scroll_pixel_position.x),
9213 line_y,
9214 );
9215
9216 for fragment in &self.fragments {
9217 match fragment {
9218 LineFragment::Text(line) => {
9219 line.paint_background(
9220 fragment_origin,
9221 line_height,
9222 layout.text_align,
9223 Some(layout.content_width),
9224 window,
9225 cx,
9226 )
9227 .log_err();
9228 fragment_origin.x += line.width;
9229 }
9230 LineFragment::Element { size, .. } => {
9231 fragment_origin.x += size.width;
9232 }
9233 }
9234 }
9235 }
9236
9237 fn draw_invisibles(
9238 &self,
9239 selection_ranges: &[Range<DisplayPoint>],
9240 layout: &EditorLayout,
9241 content_origin: gpui::Point<Pixels>,
9242 line_y: Pixels,
9243 row: DisplayRow,
9244 line_height: Pixels,
9245 whitespace_setting: ShowWhitespaceSetting,
9246 window: &mut Window,
9247 cx: &mut App,
9248 ) {
9249 let extract_whitespace_info = |invisible: &Invisible| {
9250 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
9251 Invisible::Tab {
9252 line_start_offset,
9253 line_end_offset,
9254 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
9255 Invisible::Whitespace { line_offset } => {
9256 (*line_offset, line_offset + 1, &layout.space_invisible)
9257 }
9258 };
9259
9260 let x_offset: ScrollPixelOffset = self.x_for_index(token_offset).into();
9261 let invisible_offset: ScrollPixelOffset =
9262 ((layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0)
9263 .into();
9264 let origin = content_origin
9265 + gpui::point(
9266 Pixels::from(
9267 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
9268 ),
9269 line_y,
9270 );
9271
9272 (
9273 [token_offset, token_end_offset],
9274 Box::new(move |window: &mut Window, cx: &mut App| {
9275 invisible_symbol
9276 .paint(origin, line_height, TextAlign::Left, None, window, cx)
9277 .log_err();
9278 }),
9279 )
9280 };
9281
9282 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
9283 match whitespace_setting {
9284 ShowWhitespaceSetting::None => (),
9285 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
9286 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
9287 let invisible_point = DisplayPoint::new(row, start as u32);
9288 if !selection_ranges
9289 .iter()
9290 .any(|region| region.start <= invisible_point && invisible_point < region.end)
9291 {
9292 return;
9293 }
9294
9295 paint(window, cx);
9296 }),
9297
9298 ShowWhitespaceSetting::Trailing => {
9299 let mut previous_start = self.len;
9300 for ([start, end], paint) in invisible_iter.rev() {
9301 if previous_start != end {
9302 break;
9303 }
9304 previous_start = start;
9305 paint(window, cx);
9306 }
9307 }
9308
9309 // For a whitespace to be on a boundary, any of the following conditions need to be met:
9310 // - It is a tab
9311 // - It is adjacent to an edge (start or end)
9312 // - It is adjacent to a whitespace (left or right)
9313 ShowWhitespaceSetting::Boundary => {
9314 // 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
9315 // the above cases.
9316 // Note: We zip in the original `invisibles` to check for tab equality
9317 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
9318 for (([start, end], paint), invisible) in
9319 invisible_iter.zip_eq(self.invisibles.iter())
9320 {
9321 let should_render = match (&last_seen, invisible) {
9322 (_, Invisible::Tab { .. }) => true,
9323 (Some((_, last_end, _)), _) => *last_end == start,
9324 _ => false,
9325 };
9326
9327 if should_render || start == 0 || end == self.len {
9328 paint(window, cx);
9329
9330 // Since we are scanning from the left, we will skip over the first available whitespace that is part
9331 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
9332 if let Some((should_render_last, last_end, paint_last)) = last_seen {
9333 // Note that we need to make sure that the last one is actually adjacent
9334 if !should_render_last && last_end == start {
9335 paint_last(window, cx);
9336 }
9337 }
9338 }
9339
9340 // Manually render anything within a selection
9341 let invisible_point = DisplayPoint::new(row, start as u32);
9342 if selection_ranges.iter().any(|region| {
9343 region.start <= invisible_point && invisible_point < region.end
9344 }) {
9345 paint(window, cx);
9346 }
9347
9348 last_seen = Some((should_render, end, paint));
9349 }
9350 }
9351 }
9352 }
9353
9354 pub fn x_for_index(&self, index: usize) -> Pixels {
9355 let mut fragment_start_x = Pixels::ZERO;
9356 let mut fragment_start_index = 0;
9357
9358 for fragment in &self.fragments {
9359 match fragment {
9360 LineFragment::Text(shaped_line) => {
9361 let fragment_end_index = fragment_start_index + shaped_line.len;
9362 if index < fragment_end_index {
9363 return fragment_start_x
9364 + shaped_line.x_for_index(index - fragment_start_index);
9365 }
9366 fragment_start_x += shaped_line.width;
9367 fragment_start_index = fragment_end_index;
9368 }
9369 LineFragment::Element { len, size, .. } => {
9370 let fragment_end_index = fragment_start_index + len;
9371 if index < fragment_end_index {
9372 return fragment_start_x;
9373 }
9374 fragment_start_x += size.width;
9375 fragment_start_index = fragment_end_index;
9376 }
9377 }
9378 }
9379
9380 fragment_start_x
9381 }
9382
9383 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
9384 let mut fragment_start_x = Pixels::ZERO;
9385 let mut fragment_start_index = 0;
9386
9387 for fragment in &self.fragments {
9388 match fragment {
9389 LineFragment::Text(shaped_line) => {
9390 let fragment_end_x = fragment_start_x + shaped_line.width;
9391 if x < fragment_end_x {
9392 return Some(
9393 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
9394 );
9395 }
9396 fragment_start_x = fragment_end_x;
9397 fragment_start_index += shaped_line.len;
9398 }
9399 LineFragment::Element { len, size, .. } => {
9400 let fragment_end_x = fragment_start_x + size.width;
9401 if x < fragment_end_x {
9402 return Some(fragment_start_index);
9403 }
9404 fragment_start_index += len;
9405 fragment_start_x = fragment_end_x;
9406 }
9407 }
9408 }
9409
9410 None
9411 }
9412
9413 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
9414 let mut fragment_start_index = 0;
9415
9416 for fragment in &self.fragments {
9417 match fragment {
9418 LineFragment::Text(shaped_line) => {
9419 let fragment_end_index = fragment_start_index + shaped_line.len;
9420 if index < fragment_end_index {
9421 return shaped_line.font_id_for_index(index - fragment_start_index);
9422 }
9423 fragment_start_index = fragment_end_index;
9424 }
9425 LineFragment::Element { len, .. } => {
9426 let fragment_end_index = fragment_start_index + len;
9427 if index < fragment_end_index {
9428 return None;
9429 }
9430 fragment_start_index = fragment_end_index;
9431 }
9432 }
9433 }
9434
9435 None
9436 }
9437
9438 pub fn alignment_offset(&self, text_align: TextAlign, content_width: Pixels) -> Pixels {
9439 let line_width = self.width;
9440 match text_align {
9441 TextAlign::Left => px(0.0),
9442 TextAlign::Center => (content_width - line_width) / 2.0,
9443 TextAlign::Right => content_width - line_width,
9444 }
9445 }
9446}
9447
9448#[derive(Debug, Clone, Copy, PartialEq, Eq)]
9449enum Invisible {
9450 /// A tab character
9451 ///
9452 /// A tab character is internally represented by spaces (configured by the user's tab width)
9453 /// aligned to the nearest column, so it's necessary to store the start and end offset for
9454 /// adjacency checks.
9455 Tab {
9456 line_start_offset: usize,
9457 line_end_offset: usize,
9458 },
9459 Whitespace {
9460 line_offset: usize,
9461 },
9462}
9463
9464impl EditorElement {
9465 /// Returns the rem size to use when rendering the [`EditorElement`].
9466 ///
9467 /// This allows UI elements to scale based on the `buffer_font_size`.
9468 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
9469 match self.editor.read(cx).mode {
9470 EditorMode::Full {
9471 scale_ui_elements_with_buffer_font_size: true,
9472 ..
9473 }
9474 | EditorMode::Minimap { .. } => {
9475 let buffer_font_size = self.style.text.font_size;
9476 match buffer_font_size {
9477 AbsoluteLength::Pixels(pixels) => {
9478 let rem_size_scale = {
9479 // Our default UI font size is 14px on a 16px base scale.
9480 // This means the default UI font size is 0.875rems.
9481 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
9482
9483 // We then determine the delta between a single rem and the default font
9484 // size scale.
9485 let default_font_size_delta = 1. - default_font_size_scale;
9486
9487 // Finally, we add this delta to 1rem to get the scale factor that
9488 // should be used to scale up the UI.
9489 1. + default_font_size_delta
9490 };
9491
9492 Some(pixels * rem_size_scale)
9493 }
9494 AbsoluteLength::Rems(rems) => {
9495 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
9496 }
9497 }
9498 }
9499 // We currently use single-line and auto-height editors in UI contexts,
9500 // so we don't want to scale everything with the buffer font size, as it
9501 // ends up looking off.
9502 _ => None,
9503 }
9504 }
9505
9506 fn editor_with_selections(&self, cx: &App) -> Option<Entity<Editor>> {
9507 if let EditorMode::Minimap { parent } = self.editor.read(cx).mode() {
9508 parent.upgrade()
9509 } else {
9510 Some(self.editor.clone())
9511 }
9512 }
9513}
9514
9515#[derive(Default)]
9516pub struct EditorRequestLayoutState {
9517 // We use prepaint depth to limit the number of times prepaint is
9518 // called recursively. We need this so that we can update stale
9519 // data for e.g. block heights in block map.
9520 prepaint_depth: Rc<Cell<usize>>,
9521}
9522
9523impl EditorRequestLayoutState {
9524 // In ideal conditions we only need one more subsequent prepaint call for resize to take effect.
9525 // i.e. MAX_PREPAINT_DEPTH = 2, but since moving blocks inline (place_near), more lines from
9526 // below get exposed, and we end up querying blocks for those lines too in subsequent renders.
9527 // Setting MAX_PREPAINT_DEPTH = 3, passes all tests. Just to be on the safe side we set it to 5, so
9528 // that subsequent shrinking does not lead to incorrect block placing.
9529 const MAX_PREPAINT_DEPTH: usize = 5;
9530
9531 fn increment_prepaint_depth(&self) -> EditorPrepaintGuard {
9532 let depth = self.prepaint_depth.get();
9533 self.prepaint_depth.set(depth + 1);
9534 EditorPrepaintGuard {
9535 prepaint_depth: self.prepaint_depth.clone(),
9536 }
9537 }
9538
9539 fn can_prepaint(&self) -> bool {
9540 self.prepaint_depth.get() < Self::MAX_PREPAINT_DEPTH
9541 }
9542}
9543
9544struct EditorPrepaintGuard {
9545 prepaint_depth: Rc<Cell<usize>>,
9546}
9547
9548impl Drop for EditorPrepaintGuard {
9549 fn drop(&mut self) {
9550 let depth = self.prepaint_depth.get();
9551 self.prepaint_depth.set(depth.saturating_sub(1));
9552 }
9553}
9554
9555impl Element for EditorElement {
9556 type RequestLayoutState = EditorRequestLayoutState;
9557 type PrepaintState = EditorLayout;
9558
9559 fn id(&self) -> Option<ElementId> {
9560 None
9561 }
9562
9563 fn source_location(&self) -> Option<&'static core::panic::Location<'static>> {
9564 None
9565 }
9566
9567 fn request_layout(
9568 &mut self,
9569 _: Option<&GlobalElementId>,
9570 _inspector_id: Option<&gpui::InspectorElementId>,
9571 window: &mut Window,
9572 cx: &mut App,
9573 ) -> (gpui::LayoutId, Self::RequestLayoutState) {
9574 let rem_size = self.rem_size(cx);
9575 window.with_rem_size(rem_size, |window| {
9576 self.editor.update(cx, |editor, cx| {
9577 editor.set_style(self.style.clone(), window, cx);
9578
9579 let layout_id = match editor.mode {
9580 EditorMode::SingleLine => {
9581 let rem_size = window.rem_size();
9582 let height = self.style.text.line_height_in_pixels(rem_size);
9583 let mut style = Style::default();
9584 style.size.height = height.into();
9585 style.size.width = relative(1.).into();
9586 window.request_layout(style, None, cx)
9587 }
9588 EditorMode::AutoHeight {
9589 min_lines,
9590 max_lines,
9591 } => {
9592 let editor_handle = cx.entity();
9593 window.request_measured_layout(
9594 Style::default(),
9595 move |known_dimensions, available_space, window, cx| {
9596 editor_handle
9597 .update(cx, |editor, cx| {
9598 compute_auto_height_layout(
9599 editor,
9600 min_lines,
9601 max_lines,
9602 known_dimensions,
9603 available_space.width,
9604 window,
9605 cx,
9606 )
9607 })
9608 .unwrap_or_default()
9609 },
9610 )
9611 }
9612 EditorMode::Minimap { .. } => {
9613 let mut style = Style::default();
9614 style.size.width = relative(1.).into();
9615 style.size.height = relative(1.).into();
9616 window.request_layout(style, None, cx)
9617 }
9618 EditorMode::Full {
9619 sizing_behavior, ..
9620 } => {
9621 let mut style = Style::default();
9622 style.size.width = relative(1.).into();
9623 if sizing_behavior == SizingBehavior::SizeByContent {
9624 let snapshot = editor.snapshot(window, cx);
9625 let line_height =
9626 self.style.text.line_height_in_pixels(window.rem_size());
9627 let scroll_height =
9628 (snapshot.max_point().row().next_row().0 as f32) * line_height;
9629 style.size.height = scroll_height.into();
9630 } else {
9631 style.size.height = relative(1.).into();
9632 }
9633 window.request_layout(style, None, cx)
9634 }
9635 };
9636
9637 (layout_id, EditorRequestLayoutState::default())
9638 })
9639 })
9640 }
9641
9642 fn prepaint(
9643 &mut self,
9644 _: Option<&GlobalElementId>,
9645 _inspector_id: Option<&gpui::InspectorElementId>,
9646 bounds: Bounds<Pixels>,
9647 request_layout: &mut Self::RequestLayoutState,
9648 window: &mut Window,
9649 cx: &mut App,
9650 ) -> Self::PrepaintState {
9651 let _prepaint_depth_guard = request_layout.increment_prepaint_depth();
9652 let text_style = TextStyleRefinement {
9653 font_size: Some(self.style.text.font_size),
9654 line_height: Some(self.style.text.line_height),
9655 ..Default::default()
9656 };
9657
9658 let is_minimap = self.editor.read(cx).mode.is_minimap();
9659 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
9660
9661 if !is_minimap {
9662 let focus_handle = self.editor.focus_handle(cx);
9663 window.set_view_id(self.editor.entity_id());
9664 window.set_focus_handle(&focus_handle, cx);
9665 }
9666
9667 let rem_size = self.rem_size(cx);
9668 window.with_rem_size(rem_size, |window| {
9669 window.with_text_style(Some(text_style), |window| {
9670 window.with_content_mask(Some(ContentMask { bounds }), |window| {
9671 let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| {
9672 (editor.snapshot(window, cx), editor.read_only(cx))
9673 });
9674 let style = &self.style;
9675
9676 let rem_size = window.rem_size();
9677 let font_id = window.text_system().resolve_font(&style.text.font());
9678 let font_size = style.text.font_size.to_pixels(rem_size);
9679 let line_height = style.text.line_height_in_pixels(rem_size);
9680 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
9681 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
9682 let em_layout_width = window.text_system().em_layout_width(font_id, font_size);
9683 let glyph_grid_cell = size(em_advance, line_height);
9684
9685 let gutter_dimensions =
9686 snapshot.gutter_dimensions(font_id, font_size, style, window, cx);
9687 let text_width = bounds.size.width - gutter_dimensions.width;
9688
9689 let settings = EditorSettings::get_global(cx);
9690 let scrollbars_shown = settings.scrollbar.show != ShowScrollbar::Never;
9691 let vertical_scrollbar_width = (scrollbars_shown
9692 && settings.scrollbar.axes.vertical
9693 && self.editor.read(cx).show_scrollbars.vertical)
9694 .then_some(style.scrollbar_width)
9695 .unwrap_or_default();
9696 let minimap_width = self
9697 .get_minimap_width(
9698 &settings.minimap,
9699 scrollbars_shown,
9700 text_width,
9701 em_width,
9702 font_size,
9703 rem_size,
9704 cx,
9705 )
9706 .unwrap_or_default();
9707
9708 let right_margin = minimap_width + vertical_scrollbar_width;
9709
9710 let extended_right = 2 * em_width + right_margin;
9711 let editor_width = text_width - gutter_dimensions.margin - extended_right;
9712 let editor_margins = EditorMargins {
9713 gutter: gutter_dimensions,
9714 right: right_margin,
9715 extended_right,
9716 };
9717
9718 snapshot = self.editor.update(cx, |editor, cx| {
9719 editor.last_bounds = Some(bounds);
9720 editor.gutter_dimensions = gutter_dimensions;
9721 editor.set_visible_line_count(
9722 (bounds.size.height / line_height) as f64,
9723 window,
9724 cx,
9725 );
9726 editor.set_visible_column_count(f64::from(editor_width / em_advance));
9727
9728 if matches!(
9729 editor.mode,
9730 EditorMode::AutoHeight { .. } | EditorMode::Minimap { .. }
9731 ) {
9732 snapshot
9733 } else {
9734 let wrap_width = calculate_wrap_width(
9735 editor.soft_wrap_mode(cx),
9736 editor_width,
9737 em_layout_width,
9738 );
9739
9740 if editor.set_wrap_width(wrap_width, cx) {
9741 editor.snapshot(window, cx)
9742 } else {
9743 snapshot
9744 }
9745 }
9746 });
9747
9748 let hitbox = window.insert_hitbox(bounds, HitboxBehavior::Normal);
9749 let gutter_hitbox = window.insert_hitbox(
9750 gutter_bounds(bounds, gutter_dimensions),
9751 HitboxBehavior::Normal,
9752 );
9753 let text_hitbox = window.insert_hitbox(
9754 Bounds {
9755 origin: gutter_hitbox.top_right(),
9756 size: size(text_width, bounds.size.height),
9757 },
9758 HitboxBehavior::Normal,
9759 );
9760
9761 // Offset the content_bounds from the text_bounds by the gutter margin (which
9762 // is roughly half a character wide) to make hit testing work more like how we want.
9763 let content_offset = point(editor_margins.gutter.margin, Pixels::ZERO);
9764 let content_origin = text_hitbox.origin + content_offset;
9765
9766 let height_in_lines = f64::from(bounds.size.height / line_height);
9767 let max_row = snapshot.max_point().row().as_f64();
9768
9769 // Calculate how much of the editor is clipped by parent containers (e.g., List).
9770 // This allows us to only render lines that are actually visible, which is
9771 // critical for performance when large AutoHeight editors are inside Lists.
9772 let visible_bounds = window.content_mask().bounds;
9773 let clipped_top = (visible_bounds.origin.y - bounds.origin.y).max(px(0.));
9774 let clipped_top_in_lines = f64::from(clipped_top / line_height);
9775 let visible_height_in_lines =
9776 f64::from(visible_bounds.size.height / line_height);
9777
9778 // The max scroll position for the top of the window
9779 let max_scroll_top = if matches!(
9780 snapshot.mode,
9781 EditorMode::SingleLine
9782 | EditorMode::AutoHeight { .. }
9783 | EditorMode::Full {
9784 sizing_behavior: SizingBehavior::ExcludeOverscrollMargin
9785 | SizingBehavior::SizeByContent,
9786 ..
9787 }
9788 ) {
9789 (max_row - height_in_lines + 1.).max(0.)
9790 } else {
9791 let settings = EditorSettings::get_global(cx);
9792 match settings.scroll_beyond_last_line {
9793 ScrollBeyondLastLine::OnePage => max_row,
9794 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
9795 ScrollBeyondLastLine::VerticalScrollMargin => {
9796 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
9797 .max(0.)
9798 }
9799 }
9800 };
9801
9802 let (
9803 autoscroll_request,
9804 autoscroll_containing_element,
9805 needs_horizontal_autoscroll,
9806 ) = self.editor.update(cx, |editor, cx| {
9807 let autoscroll_request = editor.scroll_manager.take_autoscroll_request();
9808
9809 let autoscroll_containing_element =
9810 autoscroll_request.is_some() || editor.has_pending_selection();
9811
9812 let (needs_horizontal_autoscroll, was_scrolled) = editor
9813 .autoscroll_vertically(
9814 bounds,
9815 line_height,
9816 max_scroll_top,
9817 autoscroll_request,
9818 window,
9819 cx,
9820 );
9821 if was_scrolled.0 {
9822 snapshot = editor.snapshot(window, cx);
9823 }
9824 (
9825 autoscroll_request,
9826 autoscroll_containing_element,
9827 needs_horizontal_autoscroll,
9828 )
9829 });
9830
9831 let mut scroll_position = snapshot.scroll_position();
9832 // The scroll position is a fractional point, the whole number of which represents
9833 // the top of the window in terms of display rows.
9834 // We add clipped_top_in_lines to skip rows that are clipped by parent containers,
9835 // but we don't modify scroll_position itself since the parent handles positioning.
9836 let max_row = snapshot.max_point().row();
9837 let start_row = cmp::min(
9838 DisplayRow((scroll_position.y + clipped_top_in_lines).floor() as u32),
9839 max_row,
9840 );
9841 let end_row = cmp::min(
9842 (scroll_position.y + clipped_top_in_lines + visible_height_in_lines).ceil()
9843 as u32,
9844 max_row.next_row().0,
9845 );
9846 let end_row = DisplayRow(end_row);
9847
9848 let row_infos = snapshot // note we only get the visual range
9849 .row_infos(start_row)
9850 .take((start_row..end_row).len())
9851 .collect::<Vec<RowInfo>>();
9852 let is_row_soft_wrapped = |row: usize| {
9853 row_infos
9854 .get(row)
9855 .is_none_or(|info| info.buffer_row.is_none())
9856 };
9857
9858 let start_anchor = if start_row == Default::default() {
9859 Anchor::min()
9860 } else {
9861 snapshot.buffer_snapshot().anchor_before(
9862 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
9863 )
9864 };
9865 let end_anchor = if end_row > max_row {
9866 Anchor::max()
9867 } else {
9868 snapshot.buffer_snapshot().anchor_before(
9869 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
9870 )
9871 };
9872
9873 let mut highlighted_rows = self
9874 .editor
9875 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
9876
9877 let is_light = cx.theme().appearance().is_light();
9878
9879 let mut highlighted_ranges = self
9880 .editor_with_selections(cx)
9881 .map(|editor| {
9882 if editor == self.editor {
9883 editor.read(cx).background_highlights_in_range(
9884 start_anchor..end_anchor,
9885 &snapshot.display_snapshot,
9886 cx.theme(),
9887 )
9888 } else {
9889 editor.update(cx, |editor, cx| {
9890 let snapshot = editor.snapshot(window, cx);
9891 let start_anchor = if start_row == Default::default() {
9892 Anchor::min()
9893 } else {
9894 snapshot.buffer_snapshot().anchor_before(
9895 DisplayPoint::new(start_row, 0)
9896 .to_offset(&snapshot, Bias::Left),
9897 )
9898 };
9899 let end_anchor = if end_row > max_row {
9900 Anchor::max()
9901 } else {
9902 snapshot.buffer_snapshot().anchor_before(
9903 DisplayPoint::new(end_row, 0)
9904 .to_offset(&snapshot, Bias::Right),
9905 )
9906 };
9907
9908 editor.background_highlights_in_range(
9909 start_anchor..end_anchor,
9910 &snapshot.display_snapshot,
9911 cx.theme(),
9912 )
9913 })
9914 }
9915 })
9916 .unwrap_or_default();
9917
9918 for (ix, row_info) in row_infos.iter().enumerate() {
9919 let Some(diff_status) = row_info.diff_status else {
9920 continue;
9921 };
9922
9923 let background_color = match diff_status.kind {
9924 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
9925 DiffHunkStatusKind::Deleted => {
9926 cx.theme().colors().version_control_deleted
9927 }
9928 DiffHunkStatusKind::Modified => {
9929 debug_panic!("modified diff status for row info");
9930 continue;
9931 }
9932 };
9933
9934 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
9935
9936 let hollow_highlight = LineHighlight {
9937 background: (background_color.opacity(if is_light {
9938 0.08
9939 } else {
9940 0.06
9941 }))
9942 .into(),
9943 border: Some(if is_light {
9944 background_color.opacity(0.48)
9945 } else {
9946 background_color.opacity(0.36)
9947 }),
9948 include_gutter: true,
9949 type_id: None,
9950 };
9951
9952 let filled_highlight = LineHighlight {
9953 background: solid_background(background_color.opacity(hunk_opacity)),
9954 border: None,
9955 include_gutter: true,
9956 type_id: None,
9957 };
9958
9959 let background = if Self::diff_hunk_hollow(diff_status, cx) {
9960 hollow_highlight
9961 } else {
9962 filled_highlight
9963 };
9964
9965 let base_display_point =
9966 DisplayPoint::new(start_row + DisplayRow(ix as u32), 0);
9967
9968 highlighted_rows
9969 .entry(base_display_point.row())
9970 .or_insert(background);
9971 }
9972
9973 // Add diff review drag selection highlight to text area
9974 if let Some(drag_state) = &self.editor.read(cx).diff_review_drag_state {
9975 let range = drag_state.row_range(&snapshot.display_snapshot);
9976 let start_row = range.start().0;
9977 let end_row = range.end().0;
9978 let drag_highlight_color =
9979 cx.theme().colors().editor_active_line_background;
9980 let drag_highlight = LineHighlight {
9981 background: solid_background(drag_highlight_color),
9982 border: Some(cx.theme().colors().border_focused),
9983 include_gutter: true,
9984 type_id: None,
9985 };
9986 for row_num in start_row..=end_row {
9987 highlighted_rows
9988 .entry(DisplayRow(row_num))
9989 .or_insert(drag_highlight);
9990 }
9991 }
9992
9993 let highlighted_gutter_ranges =
9994 self.editor.read(cx).gutter_highlights_in_range(
9995 start_anchor..end_anchor,
9996 &snapshot.display_snapshot,
9997 cx,
9998 );
9999
10000 let document_colors = self
10001 .editor
10002 .read(cx)
10003 .colors
10004 .as_ref()
10005 .map(|colors| colors.editor_display_highlights(&snapshot));
10006 let redacted_ranges = self.editor.read(cx).redacted_ranges(
10007 start_anchor..end_anchor,
10008 &snapshot.display_snapshot,
10009 cx,
10010 );
10011
10012 let (local_selections, selected_buffer_ids, latest_selection_anchors): (
10013 Vec<Selection<Point>>,
10014 Vec<BufferId>,
10015 HashMap<BufferId, Anchor>,
10016 ) = self
10017 .editor_with_selections(cx)
10018 .map(|editor| {
10019 editor.update(cx, |editor, cx| {
10020 let all_selections =
10021 editor.selections.all::<Point>(&snapshot.display_snapshot);
10022 let all_anchor_selections =
10023 editor.selections.all_anchors(&snapshot.display_snapshot);
10024 let selected_buffer_ids =
10025 if editor.buffer_kind(cx) == ItemBufferKind::Singleton {
10026 Vec::new()
10027 } else {
10028 let mut selected_buffer_ids =
10029 Vec::with_capacity(all_selections.len());
10030
10031 for selection in all_selections {
10032 for buffer_id in snapshot
10033 .buffer_snapshot()
10034 .buffer_ids_for_range(selection.range())
10035 {
10036 if selected_buffer_ids.last() != Some(&buffer_id) {
10037 selected_buffer_ids.push(buffer_id);
10038 }
10039 }
10040 }
10041
10042 selected_buffer_ids
10043 };
10044
10045 let mut selections = editor.selections.disjoint_in_range(
10046 start_anchor..end_anchor,
10047 &snapshot.display_snapshot,
10048 );
10049 selections
10050 .extend(editor.selections.pending(&snapshot.display_snapshot));
10051
10052 let mut anchors_by_buffer: HashMap<BufferId, (usize, Anchor)> =
10053 HashMap::default();
10054 for selection in all_anchor_selections.iter() {
10055 let head = selection.head();
10056 if let Some(buffer_id) = head.text_anchor.buffer_id {
10057 anchors_by_buffer
10058 .entry(buffer_id)
10059 .and_modify(|(latest_id, latest_anchor)| {
10060 if selection.id > *latest_id {
10061 *latest_id = selection.id;
10062 *latest_anchor = head;
10063 }
10064 })
10065 .or_insert((selection.id, head));
10066 }
10067 }
10068 let latest_selection_anchors = anchors_by_buffer
10069 .into_iter()
10070 .map(|(buffer_id, (_, anchor))| (buffer_id, anchor))
10071 .collect();
10072
10073 (selections, selected_buffer_ids, latest_selection_anchors)
10074 })
10075 })
10076 .unwrap_or_else(|| (Vec::new(), Vec::new(), HashMap::default()));
10077
10078 let (selections, mut active_rows, newest_selection_head) = self
10079 .layout_selections(
10080 start_anchor,
10081 end_anchor,
10082 &local_selections,
10083 &snapshot,
10084 start_row,
10085 end_row,
10086 window,
10087 cx,
10088 );
10089
10090 // relative rows are based on newest selection, even outside the visible area
10091 let current_selection_head = self.editor.update(cx, |editor, cx| {
10092 (editor.selections.count() != 0).then(|| {
10093 let newest = editor
10094 .selections
10095 .newest::<Point>(&editor.display_snapshot(cx));
10096
10097 SelectionLayout::new(
10098 newest,
10099 editor.selections.line_mode(),
10100 editor.cursor_offset_on_selection,
10101 editor.cursor_shape,
10102 &snapshot,
10103 true,
10104 true,
10105 None,
10106 )
10107 .head
10108 .row()
10109 })
10110 });
10111
10112 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
10113 editor.active_breakpoints(start_row..end_row, window, cx)
10114 });
10115 for (display_row, (_, bp, state)) in &breakpoint_rows {
10116 if bp.is_enabled() && state.is_none_or(|s| s.verified) {
10117 active_rows.entry(*display_row).or_default().breakpoint = true;
10118 }
10119 }
10120
10121 let line_numbers = self.layout_line_numbers(
10122 Some(&gutter_hitbox),
10123 gutter_dimensions,
10124 line_height,
10125 scroll_position,
10126 start_row..end_row,
10127 &row_infos,
10128 &active_rows,
10129 current_selection_head,
10130 &snapshot,
10131 window,
10132 cx,
10133 );
10134
10135 // We add the gutter breakpoint indicator to breakpoint_rows after painting
10136 // line numbers so we don't paint a line number debug accent color if a user
10137 // has their mouse over that line when a breakpoint isn't there
10138 self.editor.update(cx, |editor, _| {
10139 if let Some(phantom_breakpoint) = &mut editor
10140 .gutter_breakpoint_indicator
10141 .0
10142 .filter(|phantom_breakpoint| phantom_breakpoint.is_active)
10143 {
10144 // Is there a non-phantom breakpoint on this line?
10145 phantom_breakpoint.collides_with_existing_breakpoint = true;
10146 breakpoint_rows
10147 .entry(phantom_breakpoint.display_row)
10148 .or_insert_with(|| {
10149 let position = snapshot.display_point_to_anchor(
10150 DisplayPoint::new(phantom_breakpoint.display_row, 0),
10151 Bias::Right,
10152 );
10153 let breakpoint = Breakpoint::new_standard();
10154 phantom_breakpoint.collides_with_existing_breakpoint = false;
10155 (position, breakpoint, None)
10156 });
10157 }
10158 });
10159
10160 let mut expand_toggles =
10161 window.with_element_namespace("expand_toggles", |window| {
10162 self.layout_expand_toggles(
10163 &gutter_hitbox,
10164 gutter_dimensions,
10165 em_width,
10166 line_height,
10167 scroll_position,
10168 &row_infos,
10169 window,
10170 cx,
10171 )
10172 });
10173
10174 let mut crease_toggles =
10175 window.with_element_namespace("crease_toggles", |window| {
10176 self.layout_crease_toggles(
10177 start_row..end_row,
10178 &row_infos,
10179 &active_rows,
10180 &snapshot,
10181 window,
10182 cx,
10183 )
10184 });
10185 let crease_trailers =
10186 window.with_element_namespace("crease_trailers", |window| {
10187 self.layout_crease_trailers(
10188 row_infos.iter().cloned(),
10189 &snapshot,
10190 window,
10191 cx,
10192 )
10193 });
10194
10195 let display_hunks = self.layout_gutter_diff_hunks(
10196 line_height,
10197 &gutter_hitbox,
10198 start_row..end_row,
10199 &snapshot,
10200 window,
10201 cx,
10202 );
10203
10204 Self::layout_word_diff_highlights(
10205 &display_hunks,
10206 &row_infos,
10207 start_row,
10208 &snapshot,
10209 &mut highlighted_ranges,
10210 cx,
10211 );
10212
10213 let merged_highlighted_ranges =
10214 if let Some((_, colors)) = document_colors.as_ref() {
10215 &highlighted_ranges
10216 .clone()
10217 .into_iter()
10218 .chain(colors.clone())
10219 .collect()
10220 } else {
10221 &highlighted_ranges
10222 };
10223 let bg_segments_per_row = Self::bg_segments_per_row(
10224 start_row..end_row,
10225 &selections,
10226 &merged_highlighted_ranges,
10227 self.style.background,
10228 );
10229
10230 let mut line_layouts = Self::layout_lines(
10231 start_row..end_row,
10232 &snapshot,
10233 &self.style,
10234 editor_width,
10235 is_row_soft_wrapped,
10236 &bg_segments_per_row,
10237 window,
10238 cx,
10239 );
10240 let new_renderer_widths = (!is_minimap).then(|| {
10241 line_layouts
10242 .iter()
10243 .flat_map(|layout| &layout.fragments)
10244 .filter_map(|fragment| {
10245 if let LineFragment::Element { id, size, .. } = fragment {
10246 Some((*id, size.width))
10247 } else {
10248 None
10249 }
10250 })
10251 });
10252 if new_renderer_widths.is_some_and(|new_renderer_widths| {
10253 self.editor.update(cx, |editor, cx| {
10254 editor.update_renderer_widths(new_renderer_widths, cx)
10255 })
10256 }) {
10257 // If the fold widths have changed, we need to prepaint
10258 // the element again to account for any changes in
10259 // wrapping.
10260 if request_layout.can_prepaint() {
10261 return self.prepaint(
10262 None,
10263 _inspector_id,
10264 bounds,
10265 request_layout,
10266 window,
10267 cx,
10268 );
10269 } else {
10270 debug_panic!(concat!(
10271 "skipping recursive prepaint at max depth. ",
10272 "renderer widths may be stale."
10273 ));
10274 }
10275 }
10276
10277 let longest_line_blame_width = self
10278 .editor
10279 .update(cx, |editor, cx| {
10280 if !editor.show_git_blame_inline {
10281 return None;
10282 }
10283 let blame = editor.blame.as_ref()?;
10284 let (_, blame_entry) = blame
10285 .update(cx, |blame, cx| {
10286 let row_infos =
10287 snapshot.row_infos(snapshot.longest_row()).next()?;
10288 blame.blame_for_rows(&[row_infos], cx).next()
10289 })
10290 .flatten()?;
10291 let mut element = render_inline_blame_entry(blame_entry, style, cx)?;
10292 let inline_blame_padding =
10293 ProjectSettings::get_global(cx).git.inline_blame.padding as f32
10294 * em_advance;
10295 Some(
10296 element
10297 .layout_as_root(AvailableSpace::min_size(), window, cx)
10298 .width
10299 + inline_blame_padding,
10300 )
10301 })
10302 .unwrap_or(Pixels::ZERO);
10303
10304 let longest_line_width = layout_line(
10305 snapshot.longest_row(),
10306 &snapshot,
10307 style,
10308 editor_width,
10309 is_row_soft_wrapped,
10310 window,
10311 cx,
10312 )
10313 .width;
10314
10315 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
10316 text_hitbox.bounds,
10317 glyph_grid_cell,
10318 size(
10319 longest_line_width,
10320 Pixels::from(max_row.as_f64() * f64::from(line_height)),
10321 ),
10322 longest_line_blame_width,
10323 EditorSettings::get_global(cx),
10324 );
10325
10326 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
10327
10328 let sticky_header_excerpt = if snapshot.buffer_snapshot().show_headers() {
10329 snapshot.sticky_header_excerpt(scroll_position.y)
10330 } else {
10331 None
10332 };
10333 let sticky_header_excerpt_id =
10334 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
10335
10336 let buffer = snapshot.buffer_snapshot();
10337 let start_buffer_row = MultiBufferRow(start_anchor.to_point(&buffer).row);
10338 let end_buffer_row = MultiBufferRow(end_anchor.to_point(&buffer).row);
10339
10340 let preliminary_scroll_pixel_position = point(
10341 scroll_position.x * f64::from(em_layout_width),
10342 scroll_position.y * f64::from(line_height),
10343 );
10344 let indent_guides = self.layout_indent_guides(
10345 content_origin,
10346 text_hitbox.origin,
10347 start_buffer_row..end_buffer_row,
10348 preliminary_scroll_pixel_position,
10349 line_height,
10350 &snapshot,
10351 window,
10352 cx,
10353 );
10354 let indent_guides_for_spacers = indent_guides.clone();
10355
10356 let blocks = (!is_minimap)
10357 .then(|| {
10358 window.with_element_namespace("blocks", |window| {
10359 self.render_blocks(
10360 start_row..end_row,
10361 &snapshot,
10362 &hitbox,
10363 &text_hitbox,
10364 editor_width,
10365 &mut scroll_width,
10366 &editor_margins,
10367 em_width,
10368 gutter_dimensions.full_width(),
10369 line_height,
10370 &mut line_layouts,
10371 &local_selections,
10372 &selected_buffer_ids,
10373 &latest_selection_anchors,
10374 is_row_soft_wrapped,
10375 sticky_header_excerpt_id,
10376 &indent_guides_for_spacers,
10377 window,
10378 cx,
10379 )
10380 })
10381 })
10382 .unwrap_or_default();
10383 let RenderBlocksOutput {
10384 non_spacer_blocks: mut blocks,
10385 mut spacer_blocks,
10386 row_block_types,
10387 resized_blocks,
10388 } = blocks;
10389 if let Some(resized_blocks) = resized_blocks {
10390 self.editor.update(cx, |editor, cx| {
10391 editor.resize_blocks(
10392 resized_blocks,
10393 autoscroll_request.map(|(autoscroll, _)| autoscroll),
10394 cx,
10395 )
10396 });
10397 if request_layout.can_prepaint() {
10398 return self.prepaint(
10399 None,
10400 _inspector_id,
10401 bounds,
10402 request_layout,
10403 window,
10404 cx,
10405 );
10406 } else {
10407 debug_panic!(concat!(
10408 "skipping recursive prepaint at max depth. ",
10409 "block layout may be stale."
10410 ));
10411 }
10412 }
10413
10414 let sticky_buffer_header = if self.should_show_buffer_headers() {
10415 sticky_header_excerpt.map(|sticky_header_excerpt| {
10416 window.with_element_namespace("blocks", |window| {
10417 self.layout_sticky_buffer_header(
10418 sticky_header_excerpt,
10419 scroll_position,
10420 line_height,
10421 right_margin,
10422 &snapshot,
10423 &hitbox,
10424 &selected_buffer_ids,
10425 &blocks,
10426 &latest_selection_anchors,
10427 window,
10428 cx,
10429 )
10430 })
10431 })
10432 } else {
10433 None
10434 };
10435
10436 let scroll_max: gpui::Point<ScrollPixelOffset> = point(
10437 ScrollPixelOffset::from(
10438 ((scroll_width - editor_width) / em_layout_width).max(0.0),
10439 ),
10440 max_scroll_top,
10441 );
10442
10443 self.editor.update(cx, |editor, cx| {
10444 if editor.scroll_manager.clamp_scroll_left(scroll_max.x, cx) {
10445 scroll_position.x = scroll_max.x.min(scroll_position.x);
10446 }
10447
10448 if needs_horizontal_autoscroll.0
10449 && let Some(new_scroll_position) = editor.autoscroll_horizontally(
10450 start_row,
10451 editor_width,
10452 scroll_width,
10453 em_advance,
10454 &line_layouts,
10455 autoscroll_request,
10456 window,
10457 cx,
10458 )
10459 {
10460 scroll_position = new_scroll_position;
10461 }
10462 });
10463
10464 let scroll_pixel_position = point(
10465 scroll_position.x * f64::from(em_layout_width),
10466 scroll_position.y * f64::from(line_height),
10467 );
10468 let sticky_headers = if !is_minimap
10469 && is_singleton
10470 && EditorSettings::get_global(cx).sticky_scroll.enabled
10471 {
10472 let relative = self.editor.read(cx).relative_line_numbers(cx);
10473 self.layout_sticky_headers(
10474 &snapshot,
10475 editor_width,
10476 is_row_soft_wrapped,
10477 line_height,
10478 scroll_pixel_position,
10479 content_origin,
10480 &gutter_dimensions,
10481 &gutter_hitbox,
10482 &text_hitbox,
10483 relative,
10484 current_selection_head,
10485 window,
10486 cx,
10487 )
10488 } else {
10489 None
10490 };
10491 self.editor.update(cx, |editor, _| {
10492 editor.scroll_manager.set_sticky_header_line_count(
10493 sticky_headers.as_ref().map_or(0, |h| h.lines.len()),
10494 );
10495 });
10496 let indent_guides =
10497 if scroll_pixel_position != preliminary_scroll_pixel_position {
10498 self.layout_indent_guides(
10499 content_origin,
10500 text_hitbox.origin,
10501 start_buffer_row..end_buffer_row,
10502 scroll_pixel_position,
10503 line_height,
10504 &snapshot,
10505 window,
10506 cx,
10507 )
10508 } else {
10509 indent_guides
10510 };
10511
10512 let crease_trailers =
10513 window.with_element_namespace("crease_trailers", |window| {
10514 self.prepaint_crease_trailers(
10515 crease_trailers,
10516 &line_layouts,
10517 line_height,
10518 content_origin,
10519 scroll_pixel_position,
10520 em_width,
10521 window,
10522 cx,
10523 )
10524 });
10525
10526 let (edit_prediction_popover, edit_prediction_popover_origin) = self
10527 .editor
10528 .update(cx, |editor, cx| {
10529 editor.render_edit_prediction_popover(
10530 &text_hitbox.bounds,
10531 content_origin,
10532 right_margin,
10533 &snapshot,
10534 start_row..end_row,
10535 scroll_position.y,
10536 scroll_position.y + height_in_lines,
10537 &line_layouts,
10538 line_height,
10539 scroll_position,
10540 scroll_pixel_position,
10541 newest_selection_head,
10542 editor_width,
10543 style,
10544 window,
10545 cx,
10546 )
10547 })
10548 .unzip();
10549
10550 let mut inline_diagnostics = self.layout_inline_diagnostics(
10551 &line_layouts,
10552 &crease_trailers,
10553 &row_block_types,
10554 content_origin,
10555 scroll_position,
10556 scroll_pixel_position,
10557 edit_prediction_popover_origin,
10558 start_row,
10559 end_row,
10560 line_height,
10561 em_width,
10562 style,
10563 window,
10564 cx,
10565 );
10566
10567 let mut inline_blame_layout = None;
10568 let mut inline_code_actions = None;
10569 if let Some(newest_selection_head) = newest_selection_head {
10570 let display_row = newest_selection_head.row();
10571 if (start_row..end_row).contains(&display_row)
10572 && !row_block_types.contains_key(&display_row)
10573 {
10574 inline_code_actions = self.layout_inline_code_actions(
10575 newest_selection_head,
10576 content_origin,
10577 scroll_position,
10578 scroll_pixel_position,
10579 line_height,
10580 &snapshot,
10581 window,
10582 cx,
10583 );
10584
10585 let line_ix = display_row.minus(start_row) as usize;
10586 if let (Some(row_info), Some(line_layout), Some(crease_trailer)) = (
10587 row_infos.get(line_ix),
10588 line_layouts.get(line_ix),
10589 crease_trailers.get(line_ix),
10590 ) {
10591 let crease_trailer_layout = crease_trailer.as_ref();
10592 if let Some(layout) = self.layout_inline_blame(
10593 display_row,
10594 row_info,
10595 line_layout,
10596 crease_trailer_layout,
10597 em_width,
10598 content_origin,
10599 scroll_position,
10600 scroll_pixel_position,
10601 line_height,
10602 window,
10603 cx,
10604 ) {
10605 inline_blame_layout = Some(layout);
10606 // Blame overrides inline diagnostics
10607 inline_diagnostics.remove(&display_row);
10608 }
10609 } else {
10610 log::error!(
10611 "bug: line_ix {} is out of bounds - row_infos.len(): {}, \
10612 line_layouts.len(): {}, \
10613 crease_trailers.len(): {}",
10614 line_ix,
10615 row_infos.len(),
10616 line_layouts.len(),
10617 crease_trailers.len(),
10618 );
10619 }
10620 }
10621 }
10622
10623 let blamed_display_rows = self.layout_blame_entries(
10624 &row_infos,
10625 em_width,
10626 scroll_position,
10627 line_height,
10628 &gutter_hitbox,
10629 gutter_dimensions.git_blame_entries_width,
10630 window,
10631 cx,
10632 );
10633
10634 let line_elements = self.prepaint_lines(
10635 start_row,
10636 &mut line_layouts,
10637 line_height,
10638 scroll_position,
10639 scroll_pixel_position,
10640 content_origin,
10641 window,
10642 cx,
10643 );
10644
10645 window.with_element_namespace("blocks", |window| {
10646 self.layout_blocks(
10647 &mut blocks,
10648 &hitbox,
10649 &gutter_hitbox,
10650 line_height,
10651 scroll_position,
10652 scroll_pixel_position,
10653 &editor_margins,
10654 window,
10655 cx,
10656 );
10657 self.layout_blocks(
10658 &mut spacer_blocks,
10659 &hitbox,
10660 &gutter_hitbox,
10661 line_height,
10662 scroll_position,
10663 scroll_pixel_position,
10664 &editor_margins,
10665 window,
10666 cx,
10667 );
10668 });
10669
10670 let cursors = self.collect_cursors(&snapshot, cx);
10671 let visible_row_range = start_row..end_row;
10672 let non_visible_cursors = cursors
10673 .iter()
10674 .any(|c| !visible_row_range.contains(&c.0.row()));
10675
10676 let visible_cursors = self.layout_visible_cursors(
10677 &snapshot,
10678 &selections,
10679 &row_block_types,
10680 start_row..end_row,
10681 &line_layouts,
10682 &text_hitbox,
10683 content_origin,
10684 scroll_position,
10685 scroll_pixel_position,
10686 line_height,
10687 em_width,
10688 em_advance,
10689 autoscroll_containing_element,
10690 &redacted_ranges,
10691 window,
10692 cx,
10693 );
10694
10695 let scrollbars_layout = self.layout_scrollbars(
10696 &snapshot,
10697 &scrollbar_layout_information,
10698 content_offset,
10699 scroll_position,
10700 non_visible_cursors,
10701 right_margin,
10702 editor_width,
10703 window,
10704 cx,
10705 );
10706
10707 let gutter_settings = EditorSettings::get_global(cx).gutter;
10708
10709 let context_menu_layout =
10710 if let Some(newest_selection_head) = newest_selection_head {
10711 let newest_selection_point =
10712 newest_selection_head.to_point(&snapshot.display_snapshot);
10713 if (start_row..end_row).contains(&newest_selection_head.row()) {
10714 self.layout_cursor_popovers(
10715 line_height,
10716 &text_hitbox,
10717 content_origin,
10718 right_margin,
10719 start_row,
10720 scroll_pixel_position,
10721 &line_layouts,
10722 newest_selection_head,
10723 newest_selection_point,
10724 style,
10725 window,
10726 cx,
10727 )
10728 } else {
10729 None
10730 }
10731 } else {
10732 None
10733 };
10734
10735 self.layout_gutter_menu(
10736 line_height,
10737 &text_hitbox,
10738 content_origin,
10739 right_margin,
10740 scroll_pixel_position,
10741 gutter_dimensions.width - gutter_dimensions.left_padding,
10742 window,
10743 cx,
10744 );
10745
10746 let test_indicators = if gutter_settings.runnables {
10747 self.layout_run_indicators(
10748 line_height,
10749 start_row..end_row,
10750 &row_infos,
10751 scroll_position,
10752 &gutter_dimensions,
10753 &gutter_hitbox,
10754 &snapshot,
10755 &mut breakpoint_rows,
10756 window,
10757 cx,
10758 )
10759 } else {
10760 Vec::new()
10761 };
10762
10763 let show_breakpoints = snapshot
10764 .show_breakpoints
10765 .unwrap_or(gutter_settings.breakpoints);
10766 let breakpoints = if show_breakpoints {
10767 self.layout_breakpoints(
10768 line_height,
10769 start_row..end_row,
10770 scroll_position,
10771 &gutter_dimensions,
10772 &gutter_hitbox,
10773 &snapshot,
10774 breakpoint_rows,
10775 &row_infos,
10776 window,
10777 cx,
10778 )
10779 } else {
10780 Vec::new()
10781 };
10782
10783 let git_gutter_width = Self::gutter_strip_width(line_height)
10784 + gutter_dimensions
10785 .git_blame_entries_width
10786 .unwrap_or_default();
10787 let available_width = gutter_dimensions.left_padding - git_gutter_width;
10788
10789 let max_line_number_length = self
10790 .editor
10791 .read(cx)
10792 .buffer()
10793 .read(cx)
10794 .snapshot(cx)
10795 .widest_line_number()
10796 .ilog10()
10797 + 1;
10798
10799 let diff_review_button = self
10800 .should_render_diff_review_button(
10801 start_row..end_row,
10802 &row_infos,
10803 &snapshot,
10804 cx,
10805 )
10806 .map(|(display_row, buffer_row)| {
10807 let is_wide = max_line_number_length
10808 >= EditorSettings::get_global(cx).gutter.min_line_number_digits
10809 as u32
10810 && buffer_row.is_some_and(|row| {
10811 (row + 1).ilog10() + 1 == max_line_number_length
10812 })
10813 || gutter_dimensions.right_padding == px(0.);
10814
10815 let button_width = if is_wide {
10816 available_width - px(6.)
10817 } else {
10818 available_width + em_width - px(6.)
10819 };
10820
10821 let button = self.editor.update(cx, |editor, cx| {
10822 editor
10823 .render_diff_review_button(display_row, button_width, cx)
10824 .into_any_element()
10825 });
10826 prepaint_gutter_button(
10827 button,
10828 display_row,
10829 line_height,
10830 &gutter_dimensions,
10831 scroll_position,
10832 &gutter_hitbox,
10833 window,
10834 cx,
10835 )
10836 });
10837
10838 self.layout_signature_help(
10839 &hitbox,
10840 content_origin,
10841 scroll_pixel_position,
10842 newest_selection_head,
10843 start_row,
10844 &line_layouts,
10845 line_height,
10846 em_width,
10847 context_menu_layout,
10848 window,
10849 cx,
10850 );
10851
10852 if !cx.has_active_drag() {
10853 self.layout_hover_popovers(
10854 &snapshot,
10855 &hitbox,
10856 start_row..end_row,
10857 content_origin,
10858 scroll_pixel_position,
10859 &line_layouts,
10860 line_height,
10861 em_width,
10862 context_menu_layout,
10863 window,
10864 cx,
10865 );
10866
10867 self.layout_blame_popover(&snapshot, &hitbox, line_height, window, cx);
10868 }
10869
10870 let mouse_context_menu = self.layout_mouse_context_menu(
10871 &snapshot,
10872 start_row..end_row,
10873 content_origin,
10874 window,
10875 cx,
10876 );
10877
10878 window.with_element_namespace("crease_toggles", |window| {
10879 self.prepaint_crease_toggles(
10880 &mut crease_toggles,
10881 line_height,
10882 &gutter_dimensions,
10883 gutter_settings,
10884 scroll_pixel_position,
10885 &gutter_hitbox,
10886 window,
10887 cx,
10888 )
10889 });
10890
10891 window.with_element_namespace("expand_toggles", |window| {
10892 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
10893 });
10894
10895 let wrap_guides = self.layout_wrap_guides(
10896 em_advance,
10897 scroll_position,
10898 content_origin,
10899 scrollbars_layout.as_ref(),
10900 vertical_scrollbar_width,
10901 &hitbox,
10902 window,
10903 cx,
10904 );
10905
10906 let minimap = window.with_element_namespace("minimap", |window| {
10907 self.layout_minimap(
10908 &snapshot,
10909 minimap_width,
10910 scroll_position,
10911 &scrollbar_layout_information,
10912 scrollbars_layout.as_ref(),
10913 window,
10914 cx,
10915 )
10916 });
10917
10918 let invisible_symbol_font_size = font_size / 2.;
10919 let whitespace_map = &self
10920 .editor
10921 .read(cx)
10922 .buffer
10923 .read(cx)
10924 .language_settings(cx)
10925 .whitespace_map;
10926
10927 let tab_char = whitespace_map.tab.clone();
10928 let tab_len = tab_char.len();
10929 let tab_invisible = window.text_system().shape_line(
10930 tab_char,
10931 invisible_symbol_font_size,
10932 &[TextRun {
10933 len: tab_len,
10934 font: self.style.text.font(),
10935 color: cx.theme().colors().editor_invisible,
10936 ..Default::default()
10937 }],
10938 None,
10939 );
10940
10941 let space_char = whitespace_map.space.clone();
10942 let space_len = space_char.len();
10943 let space_invisible = window.text_system().shape_line(
10944 space_char,
10945 invisible_symbol_font_size,
10946 &[TextRun {
10947 len: space_len,
10948 font: self.style.text.font(),
10949 color: cx.theme().colors().editor_invisible,
10950 ..Default::default()
10951 }],
10952 None,
10953 );
10954
10955 let mode = snapshot.mode.clone();
10956
10957 let sticky_scroll_header_height = sticky_headers
10958 .as_ref()
10959 .and_then(|headers| headers.lines.last())
10960 .map_or(Pixels::ZERO, |last| last.offset + line_height);
10961
10962 let sticky_header_height = if sticky_buffer_header.is_some() {
10963 let full_height = FILE_HEADER_HEIGHT as f32 * line_height;
10964 let display_row = blocks
10965 .iter()
10966 .filter(|block| block.is_buffer_header)
10967 .find_map(|block| {
10968 block.row.filter(|row| row.0 > scroll_position.y as u32)
10969 });
10970 let offset = match display_row {
10971 Some(display_row) => {
10972 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
10973 let offset = (scroll_position.y - max_row as f64).max(0.0);
10974 let slide_up =
10975 Pixels::from(offset * ScrollPixelOffset::from(line_height));
10976
10977 (full_height - slide_up).max(Pixels::ZERO)
10978 }
10979 None => full_height,
10980 };
10981 sticky_scroll_header_height + offset
10982 } else {
10983 sticky_scroll_header_height
10984 };
10985
10986 let (diff_hunk_controls, diff_hunk_control_bounds) =
10987 if is_read_only && !self.editor.read(cx).delegate_stage_and_restore {
10988 (vec![], vec![])
10989 } else {
10990 self.layout_diff_hunk_controls(
10991 start_row..end_row,
10992 &row_infos,
10993 &text_hitbox,
10994 current_selection_head,
10995 line_height,
10996 right_margin,
10997 scroll_pixel_position,
10998 sticky_header_height,
10999 &display_hunks,
11000 &highlighted_rows,
11001 self.editor.clone(),
11002 window,
11003 cx,
11004 )
11005 };
11006
11007 let position_map = Rc::new(PositionMap {
11008 size: bounds.size,
11009 visible_row_range,
11010 scroll_position,
11011 scroll_pixel_position,
11012 scroll_max,
11013 line_layouts,
11014 line_height,
11015 em_width,
11016 em_advance,
11017 em_layout_width,
11018 snapshot,
11019 text_align: self.style.text.text_align,
11020 content_width: text_hitbox.size.width,
11021 gutter_hitbox: gutter_hitbox.clone(),
11022 text_hitbox: text_hitbox.clone(),
11023 inline_blame_bounds: inline_blame_layout
11024 .as_ref()
11025 .map(|layout| (layout.bounds, layout.buffer_id, layout.entry.clone())),
11026 display_hunks: display_hunks.clone(),
11027 diff_hunk_control_bounds,
11028 });
11029
11030 self.editor.update(cx, |editor, _| {
11031 editor.last_position_map = Some(position_map.clone())
11032 });
11033
11034 EditorLayout {
11035 mode,
11036 position_map,
11037 visible_display_row_range: start_row..end_row,
11038 wrap_guides,
11039 indent_guides,
11040 hitbox,
11041 gutter_hitbox,
11042 display_hunks,
11043 content_origin,
11044 scrollbars_layout,
11045 minimap,
11046 active_rows,
11047 highlighted_rows,
11048 highlighted_ranges,
11049 highlighted_gutter_ranges,
11050 redacted_ranges,
11051 document_colors,
11052 line_elements,
11053 line_numbers,
11054 blamed_display_rows,
11055 inline_diagnostics,
11056 inline_blame_layout,
11057 inline_code_actions,
11058 blocks,
11059 spacer_blocks,
11060 cursors,
11061 visible_cursors,
11062 selections,
11063 edit_prediction_popover,
11064 diff_hunk_controls,
11065 mouse_context_menu,
11066 test_indicators,
11067 breakpoints,
11068 diff_review_button,
11069 crease_toggles,
11070 crease_trailers,
11071 tab_invisible,
11072 space_invisible,
11073 sticky_buffer_header,
11074 sticky_headers,
11075 expand_toggles,
11076 text_align: self.style.text.text_align,
11077 content_width: text_hitbox.size.width,
11078 }
11079 })
11080 })
11081 })
11082 }
11083
11084 fn paint(
11085 &mut self,
11086 _: Option<&GlobalElementId>,
11087 _inspector_id: Option<&gpui::InspectorElementId>,
11088 bounds: Bounds<gpui::Pixels>,
11089 _: &mut Self::RequestLayoutState,
11090 layout: &mut Self::PrepaintState,
11091 window: &mut Window,
11092 cx: &mut App,
11093 ) {
11094 if !layout.mode.is_minimap() {
11095 let focus_handle = self.editor.focus_handle(cx);
11096 let key_context = self
11097 .editor
11098 .update(cx, |editor, cx| editor.key_context(window, cx));
11099
11100 window.set_key_context(key_context);
11101 window.handle_input(
11102 &focus_handle,
11103 ElementInputHandler::new(bounds, self.editor.clone()),
11104 cx,
11105 );
11106 self.register_actions(window, cx);
11107 self.register_key_listeners(window, cx, layout);
11108 }
11109
11110 let text_style = TextStyleRefinement {
11111 font_size: Some(self.style.text.font_size),
11112 line_height: Some(self.style.text.line_height),
11113 ..Default::default()
11114 };
11115 let rem_size = self.rem_size(cx);
11116 window.with_rem_size(rem_size, |window| {
11117 window.with_text_style(Some(text_style), |window| {
11118 window.with_content_mask(Some(ContentMask { bounds }), |window| {
11119 self.paint_mouse_listeners(layout, window, cx);
11120 self.paint_background(layout, window, cx);
11121
11122 if !layout.spacer_blocks.is_empty() {
11123 window.with_element_namespace("blocks", |window| {
11124 self.paint_spacer_blocks(layout, window, cx);
11125 });
11126 }
11127
11128 self.paint_indent_guides(layout, window, cx);
11129
11130 if layout.gutter_hitbox.size.width > Pixels::ZERO {
11131 self.paint_blamed_display_rows(layout, window, cx);
11132 self.paint_line_numbers(layout, window, cx);
11133 }
11134
11135 self.paint_text(layout, window, cx);
11136
11137 if layout.gutter_hitbox.size.width > Pixels::ZERO {
11138 self.paint_gutter_highlights(layout, window, cx);
11139 self.paint_gutter_indicators(layout, window, cx);
11140 }
11141
11142 if !layout.blocks.is_empty() {
11143 window.with_element_namespace("blocks", |window| {
11144 self.paint_non_spacer_blocks(layout, window, cx);
11145 });
11146 }
11147
11148 window.with_element_namespace("blocks", |window| {
11149 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
11150 sticky_header.paint(window, cx)
11151 }
11152 });
11153
11154 self.paint_sticky_headers(layout, window, cx);
11155 self.paint_minimap(layout, window, cx);
11156 self.paint_scrollbars(layout, window, cx);
11157 self.paint_edit_prediction_popover(layout, window, cx);
11158 self.paint_mouse_context_menu(layout, window, cx);
11159 });
11160 })
11161 })
11162 }
11163}
11164
11165pub(super) fn gutter_bounds(
11166 editor_bounds: Bounds<Pixels>,
11167 gutter_dimensions: GutterDimensions,
11168) -> Bounds<Pixels> {
11169 Bounds {
11170 origin: editor_bounds.origin,
11171 size: size(gutter_dimensions.width, editor_bounds.size.height),
11172 }
11173}
11174
11175#[derive(Clone, Copy)]
11176struct ContextMenuLayout {
11177 y_flipped: bool,
11178 bounds: Bounds<Pixels>,
11179}
11180
11181/// Holds information required for layouting the editor scrollbars.
11182struct ScrollbarLayoutInformation {
11183 /// The bounds of the editor area (excluding the content offset).
11184 editor_bounds: Bounds<Pixels>,
11185 /// The available range to scroll within the document.
11186 scroll_range: Size<Pixels>,
11187 /// The space available for one glyph in the editor.
11188 glyph_grid_cell: Size<Pixels>,
11189}
11190
11191impl ScrollbarLayoutInformation {
11192 pub fn new(
11193 editor_bounds: Bounds<Pixels>,
11194 glyph_grid_cell: Size<Pixels>,
11195 document_size: Size<Pixels>,
11196 longest_line_blame_width: Pixels,
11197 settings: &EditorSettings,
11198 ) -> Self {
11199 let vertical_overscroll = match settings.scroll_beyond_last_line {
11200 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
11201 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
11202 ScrollBeyondLastLine::VerticalScrollMargin => {
11203 (1.0 + settings.vertical_scroll_margin) as f32 * glyph_grid_cell.height
11204 }
11205 };
11206
11207 let overscroll = size(longest_line_blame_width, vertical_overscroll);
11208
11209 ScrollbarLayoutInformation {
11210 editor_bounds,
11211 scroll_range: document_size + overscroll,
11212 glyph_grid_cell,
11213 }
11214 }
11215}
11216
11217impl IntoElement for EditorElement {
11218 type Element = Self;
11219
11220 fn into_element(self) -> Self::Element {
11221 self
11222 }
11223}
11224
11225pub struct EditorLayout {
11226 position_map: Rc<PositionMap>,
11227 hitbox: Hitbox,
11228 gutter_hitbox: Hitbox,
11229 content_origin: gpui::Point<Pixels>,
11230 scrollbars_layout: Option<EditorScrollbars>,
11231 minimap: Option<MinimapLayout>,
11232 mode: EditorMode,
11233 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
11234 indent_guides: Option<Vec<IndentGuideLayout>>,
11235 visible_display_row_range: Range<DisplayRow>,
11236 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
11237 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
11238 line_elements: SmallVec<[AnyElement; 1]>,
11239 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
11240 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
11241 blamed_display_rows: Option<Vec<AnyElement>>,
11242 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
11243 inline_blame_layout: Option<InlineBlameLayout>,
11244 inline_code_actions: Option<AnyElement>,
11245 blocks: Vec<BlockLayout>,
11246 spacer_blocks: Vec<BlockLayout>,
11247 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
11248 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
11249 redacted_ranges: Vec<Range<DisplayPoint>>,
11250 cursors: Vec<(DisplayPoint, Hsla)>,
11251 visible_cursors: Vec<CursorLayout>,
11252 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
11253 test_indicators: Vec<AnyElement>,
11254 breakpoints: Vec<AnyElement>,
11255 diff_review_button: Option<AnyElement>,
11256 crease_toggles: Vec<Option<AnyElement>>,
11257 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
11258 diff_hunk_controls: Vec<AnyElement>,
11259 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
11260 edit_prediction_popover: Option<AnyElement>,
11261 mouse_context_menu: Option<AnyElement>,
11262 tab_invisible: ShapedLine,
11263 space_invisible: ShapedLine,
11264 sticky_buffer_header: Option<AnyElement>,
11265 sticky_headers: Option<StickyHeaders>,
11266 document_colors: Option<(DocumentColorsRenderMode, Vec<(Range<DisplayPoint>, Hsla)>)>,
11267 text_align: TextAlign,
11268 content_width: Pixels,
11269}
11270
11271struct StickyHeaders {
11272 lines: Vec<StickyHeaderLine>,
11273 gutter_background: Hsla,
11274 content_background: Hsla,
11275 gutter_right_padding: Pixels,
11276}
11277
11278struct StickyHeaderLine {
11279 row: DisplayRow,
11280 offset: Pixels,
11281 line: LineWithInvisibles,
11282 line_number: Option<ShapedLine>,
11283 elements: SmallVec<[AnyElement; 1]>,
11284 available_text_width: Pixels,
11285 target_anchor: Anchor,
11286 hitbox: Hitbox,
11287}
11288
11289impl EditorLayout {
11290 fn line_end_overshoot(&self) -> Pixels {
11291 0.15 * self.position_map.line_height
11292 }
11293}
11294
11295impl StickyHeaders {
11296 fn paint(
11297 &mut self,
11298 layout: &mut EditorLayout,
11299 whitespace_setting: ShowWhitespaceSetting,
11300 window: &mut Window,
11301 cx: &mut App,
11302 ) {
11303 let line_height = layout.position_map.line_height;
11304
11305 for line in self.lines.iter_mut().rev() {
11306 window.paint_layer(
11307 Bounds::new(
11308 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
11309 size(line.hitbox.size.width, line_height),
11310 ),
11311 |window| {
11312 let gutter_bounds = Bounds::new(
11313 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
11314 size(layout.gutter_hitbox.size.width, line_height),
11315 );
11316 window.paint_quad(fill(gutter_bounds, self.gutter_background));
11317
11318 let text_bounds = Bounds::new(
11319 layout.position_map.text_hitbox.origin + point(Pixels::ZERO, line.offset),
11320 size(line.available_text_width, line_height),
11321 );
11322 window.paint_quad(fill(text_bounds, self.content_background));
11323
11324 if line.hitbox.is_hovered(window) {
11325 let hover_overlay = cx.theme().colors().panel_overlay_hover;
11326 window.paint_quad(fill(gutter_bounds, hover_overlay));
11327 window.paint_quad(fill(text_bounds, hover_overlay));
11328 }
11329
11330 line.paint(
11331 layout,
11332 self.gutter_right_padding,
11333 line.available_text_width,
11334 layout.content_origin,
11335 line_height,
11336 whitespace_setting,
11337 window,
11338 cx,
11339 );
11340 },
11341 );
11342
11343 window.set_cursor_style(CursorStyle::PointingHand, &line.hitbox);
11344 }
11345 }
11346}
11347
11348impl StickyHeaderLine {
11349 fn new(
11350 row: DisplayRow,
11351 offset: Pixels,
11352 mut line: LineWithInvisibles,
11353 line_number: Option<ShapedLine>,
11354 target_anchor: Anchor,
11355 line_height: Pixels,
11356 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
11357 content_origin: gpui::Point<Pixels>,
11358 gutter_hitbox: &Hitbox,
11359 text_hitbox: &Hitbox,
11360 window: &mut Window,
11361 cx: &mut App,
11362 ) -> Self {
11363 let mut elements = SmallVec::<[AnyElement; 1]>::new();
11364 line.prepaint_with_custom_offset(
11365 line_height,
11366 scroll_pixel_position,
11367 content_origin,
11368 offset,
11369 &mut elements,
11370 window,
11371 cx,
11372 );
11373
11374 let hitbox_bounds = Bounds::new(
11375 gutter_hitbox.origin + point(Pixels::ZERO, offset),
11376 size(text_hitbox.right() - gutter_hitbox.left(), line_height),
11377 );
11378 let available_text_width =
11379 (hitbox_bounds.size.width - gutter_hitbox.size.width).max(Pixels::ZERO);
11380
11381 Self {
11382 row,
11383 offset,
11384 line,
11385 line_number,
11386 elements,
11387 available_text_width,
11388 target_anchor,
11389 hitbox: window.insert_hitbox(hitbox_bounds, HitboxBehavior::BlockMouseExceptScroll),
11390 }
11391 }
11392
11393 fn paint(
11394 &mut self,
11395 layout: &EditorLayout,
11396 gutter_right_padding: Pixels,
11397 available_text_width: Pixels,
11398 content_origin: gpui::Point<Pixels>,
11399 line_height: Pixels,
11400 whitespace_setting: ShowWhitespaceSetting,
11401 window: &mut Window,
11402 cx: &mut App,
11403 ) {
11404 window.with_content_mask(
11405 Some(ContentMask {
11406 bounds: Bounds::new(
11407 layout.position_map.text_hitbox.bounds.origin
11408 + point(Pixels::ZERO, self.offset),
11409 size(available_text_width, line_height),
11410 ),
11411 }),
11412 |window| {
11413 self.line.draw_with_custom_offset(
11414 layout,
11415 self.row,
11416 content_origin,
11417 self.offset,
11418 whitespace_setting,
11419 &[],
11420 window,
11421 cx,
11422 );
11423 for element in &mut self.elements {
11424 element.paint(window, cx);
11425 }
11426 },
11427 );
11428
11429 if let Some(line_number) = &self.line_number {
11430 let gutter_origin = layout.gutter_hitbox.origin + point(Pixels::ZERO, self.offset);
11431 let gutter_width = layout.gutter_hitbox.size.width;
11432 let origin = point(
11433 gutter_origin.x + gutter_width - gutter_right_padding - line_number.width,
11434 gutter_origin.y,
11435 );
11436 line_number
11437 .paint(origin, line_height, TextAlign::Left, None, window, cx)
11438 .log_err();
11439 }
11440 }
11441}
11442
11443#[derive(Debug)]
11444struct LineNumberSegment {
11445 shaped_line: ShapedLine,
11446 hitbox: Option<Hitbox>,
11447}
11448
11449#[derive(Debug)]
11450struct LineNumberLayout {
11451 segments: SmallVec<[LineNumberSegment; 1]>,
11452}
11453
11454struct ColoredRange<T> {
11455 start: T,
11456 end: T,
11457 color: Hsla,
11458}
11459
11460impl Along for ScrollbarAxes {
11461 type Unit = bool;
11462
11463 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
11464 match axis {
11465 ScrollbarAxis::Horizontal => self.horizontal,
11466 ScrollbarAxis::Vertical => self.vertical,
11467 }
11468 }
11469
11470 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
11471 match axis {
11472 ScrollbarAxis::Horizontal => ScrollbarAxes {
11473 horizontal: f(self.horizontal),
11474 vertical: self.vertical,
11475 },
11476 ScrollbarAxis::Vertical => ScrollbarAxes {
11477 horizontal: self.horizontal,
11478 vertical: f(self.vertical),
11479 },
11480 }
11481 }
11482}
11483
11484#[derive(Clone)]
11485struct EditorScrollbars {
11486 pub vertical: Option<ScrollbarLayout>,
11487 pub horizontal: Option<ScrollbarLayout>,
11488 pub visible: bool,
11489}
11490
11491impl EditorScrollbars {
11492 pub fn from_scrollbar_axes(
11493 show_scrollbar: ScrollbarAxes,
11494 layout_information: &ScrollbarLayoutInformation,
11495 content_offset: gpui::Point<Pixels>,
11496 scroll_position: gpui::Point<f64>,
11497 scrollbar_width: Pixels,
11498 right_margin: Pixels,
11499 editor_width: Pixels,
11500 show_scrollbars: bool,
11501 scrollbar_state: Option<&ActiveScrollbarState>,
11502 window: &mut Window,
11503 ) -> Self {
11504 let ScrollbarLayoutInformation {
11505 editor_bounds,
11506 scroll_range,
11507 glyph_grid_cell,
11508 } = layout_information;
11509
11510 let viewport_size = size(editor_width, editor_bounds.size.height);
11511
11512 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
11513 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
11514 Corner::BottomLeft,
11515 editor_bounds.bottom_left(),
11516 size(
11517 // The horizontal viewport size differs from the space available for the
11518 // horizontal scrollbar, so we have to manually stitch it together here.
11519 editor_bounds.size.width - right_margin,
11520 scrollbar_width,
11521 ),
11522 ),
11523 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
11524 Corner::TopRight,
11525 editor_bounds.top_right(),
11526 size(scrollbar_width, viewport_size.height),
11527 ),
11528 };
11529
11530 let mut create_scrollbar_layout = |axis| {
11531 let viewport_size = viewport_size.along(axis);
11532 let scroll_range = scroll_range.along(axis);
11533
11534 // We always want a vertical scrollbar track for scrollbar diagnostic visibility.
11535 (show_scrollbar.along(axis)
11536 && (axis == ScrollbarAxis::Vertical || scroll_range > viewport_size))
11537 .then(|| {
11538 ScrollbarLayout::new(
11539 window.insert_hitbox(scrollbar_bounds_for(axis), HitboxBehavior::Normal),
11540 viewport_size,
11541 scroll_range,
11542 glyph_grid_cell.along(axis),
11543 content_offset.along(axis),
11544 scroll_position.along(axis),
11545 show_scrollbars,
11546 axis,
11547 )
11548 .with_thumb_state(
11549 scrollbar_state.and_then(|state| state.thumb_state_for_axis(axis)),
11550 )
11551 })
11552 };
11553
11554 Self {
11555 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
11556 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
11557 visible: show_scrollbars,
11558 }
11559 }
11560
11561 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
11562 [
11563 (&self.vertical, ScrollbarAxis::Vertical),
11564 (&self.horizontal, ScrollbarAxis::Horizontal),
11565 ]
11566 .into_iter()
11567 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
11568 }
11569
11570 /// Returns the currently hovered scrollbar axis, if any.
11571 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
11572 self.iter_scrollbars()
11573 .find(|s| s.0.hitbox.is_hovered(window))
11574 }
11575}
11576
11577#[derive(Clone)]
11578struct ScrollbarLayout {
11579 hitbox: Hitbox,
11580 visible_range: Range<ScrollOffset>,
11581 text_unit_size: Pixels,
11582 thumb_bounds: Option<Bounds<Pixels>>,
11583 thumb_state: ScrollbarThumbState,
11584}
11585
11586impl ScrollbarLayout {
11587 const BORDER_WIDTH: Pixels = px(1.0);
11588 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
11589 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
11590 const MIN_THUMB_SIZE: Pixels = px(25.0);
11591
11592 fn new(
11593 scrollbar_track_hitbox: Hitbox,
11594 viewport_size: Pixels,
11595 scroll_range: Pixels,
11596 glyph_space: Pixels,
11597 content_offset: Pixels,
11598 scroll_position: ScrollOffset,
11599 show_thumb: bool,
11600 axis: ScrollbarAxis,
11601 ) -> Self {
11602 let track_bounds = scrollbar_track_hitbox.bounds;
11603 // The length of the track available to the scrollbar thumb. We deliberately
11604 // exclude the content size here so that the thumb aligns with the content.
11605 let track_length = track_bounds.size.along(axis) - content_offset;
11606
11607 Self::new_with_hitbox_and_track_length(
11608 scrollbar_track_hitbox,
11609 track_length,
11610 viewport_size,
11611 scroll_range.into(),
11612 glyph_space,
11613 content_offset.into(),
11614 scroll_position,
11615 show_thumb,
11616 axis,
11617 )
11618 }
11619
11620 fn for_minimap(
11621 minimap_track_hitbox: Hitbox,
11622 visible_lines: f64,
11623 total_editor_lines: f64,
11624 minimap_line_height: Pixels,
11625 scroll_position: ScrollOffset,
11626 minimap_scroll_top: ScrollOffset,
11627 show_thumb: bool,
11628 ) -> Self {
11629 // The scrollbar thumb size is calculated as
11630 // (visible_content/total_content) Γ scrollbar_track_length.
11631 //
11632 // For the minimap's thumb layout, we leverage this by setting the
11633 // scrollbar track length to the entire document size (using minimap line
11634 // height). This creates a thumb that exactly represents the editor
11635 // viewport scaled to minimap proportions.
11636 //
11637 // We adjust the thumb position relative to `minimap_scroll_top` to
11638 // accommodate for the deliberately oversized track.
11639 //
11640 // This approach ensures that the minimap thumb accurately reflects the
11641 // editor's current scroll position whilst nicely synchronizing the minimap
11642 // thumb and scrollbar thumb.
11643 let scroll_range = total_editor_lines * f64::from(minimap_line_height);
11644 let viewport_size = visible_lines * f64::from(minimap_line_height);
11645
11646 let track_top_offset = -minimap_scroll_top * f64::from(minimap_line_height);
11647
11648 Self::new_with_hitbox_and_track_length(
11649 minimap_track_hitbox,
11650 Pixels::from(scroll_range),
11651 Pixels::from(viewport_size),
11652 scroll_range,
11653 minimap_line_height,
11654 track_top_offset,
11655 scroll_position,
11656 show_thumb,
11657 ScrollbarAxis::Vertical,
11658 )
11659 }
11660
11661 fn new_with_hitbox_and_track_length(
11662 scrollbar_track_hitbox: Hitbox,
11663 track_length: Pixels,
11664 viewport_size: Pixels,
11665 scroll_range: f64,
11666 glyph_space: Pixels,
11667 content_offset: ScrollOffset,
11668 scroll_position: ScrollOffset,
11669 show_thumb: bool,
11670 axis: ScrollbarAxis,
11671 ) -> Self {
11672 let text_units_per_page = viewport_size.to_f64() / glyph_space.to_f64();
11673 let visible_range = scroll_position..scroll_position + text_units_per_page;
11674 let total_text_units = scroll_range / glyph_space.to_f64();
11675
11676 let thumb_percentage = text_units_per_page / total_text_units;
11677 let thumb_size = Pixels::from(ScrollOffset::from(track_length) * thumb_percentage)
11678 .max(ScrollbarLayout::MIN_THUMB_SIZE)
11679 .min(track_length);
11680
11681 let text_unit_divisor = (total_text_units - text_units_per_page).max(0.);
11682
11683 let content_larger_than_viewport = text_unit_divisor > 0.;
11684
11685 let text_unit_size = if content_larger_than_viewport {
11686 Pixels::from(ScrollOffset::from(track_length - thumb_size) / text_unit_divisor)
11687 } else {
11688 glyph_space
11689 };
11690
11691 let thumb_bounds = (show_thumb && content_larger_than_viewport).then(|| {
11692 Self::thumb_bounds(
11693 &scrollbar_track_hitbox,
11694 content_offset,
11695 visible_range.start,
11696 text_unit_size,
11697 thumb_size,
11698 axis,
11699 )
11700 });
11701
11702 ScrollbarLayout {
11703 hitbox: scrollbar_track_hitbox,
11704 visible_range,
11705 text_unit_size,
11706 thumb_bounds,
11707 thumb_state: Default::default(),
11708 }
11709 }
11710
11711 fn with_thumb_state(self, thumb_state: Option<ScrollbarThumbState>) -> Self {
11712 if let Some(thumb_state) = thumb_state {
11713 Self {
11714 thumb_state,
11715 ..self
11716 }
11717 } else {
11718 self
11719 }
11720 }
11721
11722 fn thumb_bounds(
11723 scrollbar_track: &Hitbox,
11724 content_offset: f64,
11725 visible_range_start: f64,
11726 text_unit_size: Pixels,
11727 thumb_size: Pixels,
11728 axis: ScrollbarAxis,
11729 ) -> Bounds<Pixels> {
11730 let thumb_origin = scrollbar_track.origin.apply_along(axis, |origin| {
11731 origin
11732 + Pixels::from(
11733 content_offset + visible_range_start * ScrollOffset::from(text_unit_size),
11734 )
11735 });
11736 Bounds::new(
11737 thumb_origin,
11738 scrollbar_track.size.apply_along(axis, |_| thumb_size),
11739 )
11740 }
11741
11742 fn thumb_hovered(&self, position: &gpui::Point<Pixels>) -> bool {
11743 self.thumb_bounds
11744 .is_some_and(|bounds| bounds.contains(position))
11745 }
11746
11747 fn marker_quads_for_ranges(
11748 &self,
11749 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
11750 column: Option<usize>,
11751 ) -> Vec<PaintQuad> {
11752 struct MinMax {
11753 min: Pixels,
11754 max: Pixels,
11755 }
11756 let (x_range, height_limit) = if let Some(column) = column {
11757 let column_width = ((self.hitbox.size.width - Self::BORDER_WIDTH) / 3.0).floor();
11758 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
11759 let end = start + column_width;
11760 (
11761 Range { start, end },
11762 MinMax {
11763 min: Self::MIN_MARKER_HEIGHT,
11764 max: px(f32::MAX),
11765 },
11766 )
11767 } else {
11768 (
11769 Range {
11770 start: Self::BORDER_WIDTH,
11771 end: self.hitbox.size.width,
11772 },
11773 MinMax {
11774 min: Self::LINE_MARKER_HEIGHT,
11775 max: Self::LINE_MARKER_HEIGHT,
11776 },
11777 )
11778 };
11779
11780 let row_to_y = |row: DisplayRow| row.as_f64() as f32 * self.text_unit_size;
11781 let mut pixel_ranges = row_ranges
11782 .into_iter()
11783 .map(|range| {
11784 let start_y = row_to_y(range.start);
11785 let end_y = row_to_y(range.end)
11786 + self
11787 .text_unit_size
11788 .max(height_limit.min)
11789 .min(height_limit.max);
11790 ColoredRange {
11791 start: start_y,
11792 end: end_y,
11793 color: range.color,
11794 }
11795 })
11796 .peekable();
11797
11798 let mut quads = Vec::new();
11799 while let Some(mut pixel_range) = pixel_ranges.next() {
11800 while let Some(next_pixel_range) = pixel_ranges.peek() {
11801 if pixel_range.end >= next_pixel_range.start - px(1.0)
11802 && pixel_range.color == next_pixel_range.color
11803 {
11804 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
11805 pixel_ranges.next();
11806 } else {
11807 break;
11808 }
11809 }
11810
11811 let bounds = Bounds::from_corners(
11812 point(x_range.start, pixel_range.start),
11813 point(x_range.end, pixel_range.end),
11814 );
11815 quads.push(quad(
11816 bounds,
11817 Corners::default(),
11818 pixel_range.color,
11819 Edges::default(),
11820 Hsla::transparent_black(),
11821 BorderStyle::default(),
11822 ));
11823 }
11824
11825 quads
11826 }
11827}
11828
11829struct MinimapLayout {
11830 pub minimap: AnyElement,
11831 pub thumb_layout: ScrollbarLayout,
11832 pub minimap_scroll_top: ScrollOffset,
11833 pub minimap_line_height: Pixels,
11834 pub thumb_border_style: MinimapThumbBorder,
11835 pub max_scroll_top: ScrollOffset,
11836}
11837
11838impl MinimapLayout {
11839 /// The minimum width of the minimap in columns. If the minimap is smaller than this, it will be hidden.
11840 const MINIMAP_MIN_WIDTH_COLUMNS: f32 = 20.;
11841 /// The minimap width as a percentage of the editor width.
11842 const MINIMAP_WIDTH_PCT: f32 = 0.15;
11843 /// Calculates the scroll top offset the minimap editor has to have based on the
11844 /// current scroll progress.
11845 fn calculate_minimap_top_offset(
11846 document_lines: f64,
11847 visible_editor_lines: f64,
11848 visible_minimap_lines: f64,
11849 scroll_position: f64,
11850 ) -> ScrollOffset {
11851 let non_visible_document_lines = (document_lines - visible_editor_lines).max(0.);
11852 if non_visible_document_lines == 0. {
11853 0.
11854 } else {
11855 let scroll_percentage = (scroll_position / non_visible_document_lines).clamp(0., 1.);
11856 scroll_percentage * (document_lines - visible_minimap_lines).max(0.)
11857 }
11858 }
11859}
11860
11861struct CreaseTrailerLayout {
11862 element: AnyElement,
11863 bounds: Bounds<Pixels>,
11864}
11865
11866pub(crate) struct PositionMap {
11867 pub size: Size<Pixels>,
11868 pub line_height: Pixels,
11869 pub scroll_position: gpui::Point<ScrollOffset>,
11870 pub scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
11871 pub scroll_max: gpui::Point<ScrollOffset>,
11872 pub em_width: Pixels,
11873 pub em_advance: Pixels,
11874 pub em_layout_width: Pixels,
11875 pub visible_row_range: Range<DisplayRow>,
11876 pub line_layouts: Vec<LineWithInvisibles>,
11877 pub snapshot: EditorSnapshot,
11878 pub text_align: TextAlign,
11879 pub content_width: Pixels,
11880 pub text_hitbox: Hitbox,
11881 pub gutter_hitbox: Hitbox,
11882 pub inline_blame_bounds: Option<(Bounds<Pixels>, BufferId, BlameEntry)>,
11883 pub display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
11884 pub diff_hunk_control_bounds: Vec<(DisplayRow, Bounds<Pixels>)>,
11885}
11886
11887#[derive(Debug, Copy, Clone)]
11888pub struct PointForPosition {
11889 pub previous_valid: DisplayPoint,
11890 pub next_valid: DisplayPoint,
11891 pub exact_unclipped: DisplayPoint,
11892 pub column_overshoot_after_line_end: u32,
11893}
11894
11895impl PointForPosition {
11896 pub fn as_valid(&self) -> Option<DisplayPoint> {
11897 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
11898 Some(self.previous_valid)
11899 } else {
11900 None
11901 }
11902 }
11903
11904 pub fn intersects_selection(&self, selection: &Selection<DisplayPoint>) -> bool {
11905 let Some(valid_point) = self.as_valid() else {
11906 return false;
11907 };
11908 let range = selection.range();
11909
11910 let candidate_row = valid_point.row();
11911 let candidate_col = valid_point.column();
11912
11913 let start_row = range.start.row();
11914 let start_col = range.start.column();
11915 let end_row = range.end.row();
11916 let end_col = range.end.column();
11917
11918 if candidate_row < start_row || candidate_row > end_row {
11919 false
11920 } else if start_row == end_row {
11921 candidate_col >= start_col && candidate_col < end_col
11922 } else if candidate_row == start_row {
11923 candidate_col >= start_col
11924 } else if candidate_row == end_row {
11925 candidate_col < end_col
11926 } else {
11927 true
11928 }
11929 }
11930}
11931
11932impl PositionMap {
11933 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
11934 let text_bounds = self.text_hitbox.bounds;
11935 let scroll_position = self.snapshot.scroll_position();
11936 let position = position - text_bounds.origin;
11937 let y = position.y.max(px(0.)).min(self.size.height);
11938 let x = position.x + (scroll_position.x as f32 * self.em_layout_width);
11939 let row = ((y / self.line_height) as f64 + scroll_position.y) as u32;
11940
11941 let (column, x_overshoot_after_line_end) = if let Some(line) = self
11942 .line_layouts
11943 .get(row as usize - scroll_position.y as usize)
11944 {
11945 let alignment_offset = line.alignment_offset(self.text_align, self.content_width);
11946 let x_relative_to_text = x - alignment_offset;
11947 if let Some(ix) = line.index_for_x(x_relative_to_text) {
11948 (ix as u32, px(0.))
11949 } else {
11950 (line.len as u32, px(0.).max(x_relative_to_text - line.width))
11951 }
11952 } else {
11953 (0, x)
11954 };
11955
11956 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
11957 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
11958 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
11959
11960 let column_overshoot_after_line_end =
11961 (x_overshoot_after_line_end / self.em_layout_width) as u32;
11962 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
11963 PointForPosition {
11964 previous_valid,
11965 next_valid,
11966 exact_unclipped,
11967 column_overshoot_after_line_end,
11968 }
11969 }
11970}
11971
11972pub(crate) struct BlockLayout {
11973 pub(crate) id: BlockId,
11974 pub(crate) x_offset: Pixels,
11975 pub(crate) row: Option<DisplayRow>,
11976 pub(crate) element: AnyElement,
11977 pub(crate) available_space: Size<AvailableSpace>,
11978 pub(crate) style: BlockStyle,
11979 pub(crate) overlaps_gutter: bool,
11980 pub(crate) is_buffer_header: bool,
11981}
11982
11983pub fn layout_line(
11984 row: DisplayRow,
11985 snapshot: &EditorSnapshot,
11986 style: &EditorStyle,
11987 text_width: Pixels,
11988 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
11989 window: &mut Window,
11990 cx: &mut App,
11991) -> LineWithInvisibles {
11992 let use_tree_sitter =
11993 !snapshot.semantic_tokens_enabled || snapshot.use_tree_sitter_for_syntax(row, cx);
11994 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), use_tree_sitter, style);
11995 LineWithInvisibles::from_chunks(
11996 chunks,
11997 style,
11998 MAX_LINE_LEN,
11999 1,
12000 &snapshot.mode,
12001 text_width,
12002 is_row_soft_wrapped,
12003 &[],
12004 window,
12005 cx,
12006 )
12007 .pop()
12008 .unwrap()
12009}
12010
12011#[derive(Debug, Clone)]
12012pub struct IndentGuideLayout {
12013 origin: gpui::Point<Pixels>,
12014 length: Pixels,
12015 single_indent_width: Pixels,
12016 display_row_range: Range<DisplayRow>,
12017 depth: u32,
12018 active: bool,
12019 settings: IndentGuideSettings,
12020}
12021
12022pub struct CursorLayout {
12023 origin: gpui::Point<Pixels>,
12024 block_width: Pixels,
12025 line_height: Pixels,
12026 color: Hsla,
12027 shape: CursorShape,
12028 block_text: Option<ShapedLine>,
12029 cursor_name: Option<AnyElement>,
12030}
12031
12032#[derive(Debug)]
12033pub struct CursorName {
12034 string: SharedString,
12035 color: Hsla,
12036 is_top_row: bool,
12037}
12038
12039impl CursorLayout {
12040 pub fn new(
12041 origin: gpui::Point<Pixels>,
12042 block_width: Pixels,
12043 line_height: Pixels,
12044 color: Hsla,
12045 shape: CursorShape,
12046 block_text: Option<ShapedLine>,
12047 ) -> CursorLayout {
12048 CursorLayout {
12049 origin,
12050 block_width,
12051 line_height,
12052 color,
12053 shape,
12054 block_text,
12055 cursor_name: None,
12056 }
12057 }
12058
12059 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
12060 Bounds {
12061 origin: self.origin + origin,
12062 size: size(self.block_width, self.line_height),
12063 }
12064 }
12065
12066 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
12067 match self.shape {
12068 CursorShape::Bar => Bounds {
12069 origin: self.origin + origin,
12070 size: size(px(2.0), self.line_height),
12071 },
12072 CursorShape::Block | CursorShape::Hollow => Bounds {
12073 origin: self.origin + origin,
12074 size: size(self.block_width, self.line_height),
12075 },
12076 CursorShape::Underline => Bounds {
12077 origin: self.origin
12078 + origin
12079 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
12080 size: size(self.block_width, px(2.0)),
12081 },
12082 }
12083 }
12084
12085 pub fn layout(
12086 &mut self,
12087 origin: gpui::Point<Pixels>,
12088 cursor_name: Option<CursorName>,
12089 window: &mut Window,
12090 cx: &mut App,
12091 ) {
12092 if let Some(cursor_name) = cursor_name {
12093 let bounds = self.bounds(origin);
12094 let text_size = self.line_height / 1.5;
12095
12096 let name_origin = if cursor_name.is_top_row {
12097 point(bounds.right() - px(1.), bounds.top())
12098 } else {
12099 match self.shape {
12100 CursorShape::Bar => point(
12101 bounds.right() - px(2.),
12102 bounds.top() - text_size / 2. - px(1.),
12103 ),
12104 _ => point(
12105 bounds.right() - px(1.),
12106 bounds.top() - text_size / 2. - px(1.),
12107 ),
12108 }
12109 };
12110 let mut name_element = div()
12111 .bg(self.color)
12112 .text_size(text_size)
12113 .px_0p5()
12114 .line_height(text_size + px(2.))
12115 .text_color(cursor_name.color)
12116 .child(cursor_name.string)
12117 .into_any_element();
12118
12119 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
12120
12121 self.cursor_name = Some(name_element);
12122 }
12123 }
12124
12125 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
12126 let bounds = self.bounds(origin);
12127
12128 //Draw background or border quad
12129 let cursor = if matches!(self.shape, CursorShape::Hollow) {
12130 outline(bounds, self.color, BorderStyle::Solid)
12131 } else {
12132 fill(bounds, self.color)
12133 };
12134
12135 if let Some(name) = &mut self.cursor_name {
12136 name.paint(window, cx);
12137 }
12138
12139 window.paint_quad(cursor);
12140
12141 if let Some(block_text) = &self.block_text {
12142 block_text
12143 .paint(
12144 self.origin + origin,
12145 self.line_height,
12146 TextAlign::Left,
12147 None,
12148 window,
12149 cx,
12150 )
12151 .log_err();
12152 }
12153 }
12154
12155 pub fn shape(&self) -> CursorShape {
12156 self.shape
12157 }
12158}
12159
12160#[derive(Debug)]
12161pub struct HighlightedRange {
12162 pub start_y: Pixels,
12163 pub line_height: Pixels,
12164 pub lines: Vec<HighlightedRangeLine>,
12165 pub color: Hsla,
12166 pub corner_radius: Pixels,
12167}
12168
12169#[derive(Debug)]
12170pub struct HighlightedRangeLine {
12171 pub start_x: Pixels,
12172 pub end_x: Pixels,
12173}
12174
12175impl HighlightedRange {
12176 pub fn paint(&self, fill: bool, bounds: Bounds<Pixels>, window: &mut Window) {
12177 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
12178 self.paint_lines(self.start_y, &self.lines[0..1], fill, bounds, window);
12179 self.paint_lines(
12180 self.start_y + self.line_height,
12181 &self.lines[1..],
12182 fill,
12183 bounds,
12184 window,
12185 );
12186 } else {
12187 self.paint_lines(self.start_y, &self.lines, fill, bounds, window);
12188 }
12189 }
12190
12191 fn paint_lines(
12192 &self,
12193 start_y: Pixels,
12194 lines: &[HighlightedRangeLine],
12195 fill: bool,
12196 _bounds: Bounds<Pixels>,
12197 window: &mut Window,
12198 ) {
12199 if lines.is_empty() {
12200 return;
12201 }
12202
12203 let first_line = lines.first().unwrap();
12204 let last_line = lines.last().unwrap();
12205
12206 let first_top_left = point(first_line.start_x, start_y);
12207 let first_top_right = point(first_line.end_x, start_y);
12208
12209 let curve_height = point(Pixels::ZERO, self.corner_radius);
12210 let curve_width = |start_x: Pixels, end_x: Pixels| {
12211 let max = (end_x - start_x) / 2.;
12212 let width = if max < self.corner_radius {
12213 max
12214 } else {
12215 self.corner_radius
12216 };
12217
12218 point(width, Pixels::ZERO)
12219 };
12220
12221 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
12222 let mut builder = if fill {
12223 gpui::PathBuilder::fill()
12224 } else {
12225 gpui::PathBuilder::stroke(px(1.))
12226 };
12227 builder.move_to(first_top_right - top_curve_width);
12228 builder.curve_to(first_top_right + curve_height, first_top_right);
12229
12230 let mut iter = lines.iter().enumerate().peekable();
12231 while let Some((ix, line)) = iter.next() {
12232 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
12233
12234 if let Some((_, next_line)) = iter.peek() {
12235 let next_top_right = point(next_line.end_x, bottom_right.y);
12236
12237 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
12238 Ordering::Equal => {
12239 builder.line_to(bottom_right);
12240 }
12241 Ordering::Less => {
12242 let curve_width = curve_width(next_top_right.x, bottom_right.x);
12243 builder.line_to(bottom_right - curve_height);
12244 if self.corner_radius > Pixels::ZERO {
12245 builder.curve_to(bottom_right - curve_width, bottom_right);
12246 }
12247 builder.line_to(next_top_right + curve_width);
12248 if self.corner_radius > Pixels::ZERO {
12249 builder.curve_to(next_top_right + curve_height, next_top_right);
12250 }
12251 }
12252 Ordering::Greater => {
12253 let curve_width = curve_width(bottom_right.x, next_top_right.x);
12254 builder.line_to(bottom_right - curve_height);
12255 if self.corner_radius > Pixels::ZERO {
12256 builder.curve_to(bottom_right + curve_width, bottom_right);
12257 }
12258 builder.line_to(next_top_right - curve_width);
12259 if self.corner_radius > Pixels::ZERO {
12260 builder.curve_to(next_top_right + curve_height, next_top_right);
12261 }
12262 }
12263 }
12264 } else {
12265 let curve_width = curve_width(line.start_x, line.end_x);
12266 builder.line_to(bottom_right - curve_height);
12267 if self.corner_radius > Pixels::ZERO {
12268 builder.curve_to(bottom_right - curve_width, bottom_right);
12269 }
12270
12271 let bottom_left = point(line.start_x, bottom_right.y);
12272 builder.line_to(bottom_left + curve_width);
12273 if self.corner_radius > Pixels::ZERO {
12274 builder.curve_to(bottom_left - curve_height, bottom_left);
12275 }
12276 }
12277 }
12278
12279 if first_line.start_x > last_line.start_x {
12280 let curve_width = curve_width(last_line.start_x, first_line.start_x);
12281 let second_top_left = point(last_line.start_x, start_y + self.line_height);
12282 builder.line_to(second_top_left + curve_height);
12283 if self.corner_radius > Pixels::ZERO {
12284 builder.curve_to(second_top_left + curve_width, second_top_left);
12285 }
12286 let first_bottom_left = point(first_line.start_x, second_top_left.y);
12287 builder.line_to(first_bottom_left - curve_width);
12288 if self.corner_radius > Pixels::ZERO {
12289 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
12290 }
12291 }
12292
12293 builder.line_to(first_top_left + curve_height);
12294 if self.corner_radius > Pixels::ZERO {
12295 builder.curve_to(first_top_left + top_curve_width, first_top_left);
12296 }
12297 builder.line_to(first_top_right - top_curve_width);
12298
12299 if let Ok(path) = builder.build() {
12300 window.paint_path(path, self.color);
12301 }
12302 }
12303}
12304
12305pub(crate) struct StickyHeader {
12306 pub item: language::OutlineItem<Anchor>,
12307 pub sticky_row: DisplayRow,
12308 pub start_point: Point,
12309 pub offset: ScrollOffset,
12310}
12311
12312enum CursorPopoverType {
12313 CodeContextMenu,
12314 EditPrediction,
12315}
12316
12317pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
12318 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
12319}
12320
12321fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
12322 (delta.pow(1.2) / 300.0).into()
12323}
12324
12325pub fn register_action<T: Action>(
12326 editor: &Entity<Editor>,
12327 window: &mut Window,
12328 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
12329) {
12330 let editor = editor.clone();
12331 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
12332 let action = action.downcast_ref().unwrap();
12333 if phase == DispatchPhase::Bubble {
12334 editor.update(cx, |editor, cx| {
12335 listener(editor, action, window, cx);
12336 })
12337 }
12338 })
12339}
12340
12341/// Shared between `prepaint` and `compute_auto_height_layout` to ensure
12342/// both full and auto-height editors compute wrap widths consistently.
12343fn calculate_wrap_width(
12344 soft_wrap: SoftWrap,
12345 editor_width: Pixels,
12346 em_width: Pixels,
12347) -> Option<Pixels> {
12348 let wrap_width_for = |column: u32| (column as f32 * em_width).ceil();
12349
12350 match soft_wrap {
12351 SoftWrap::GitDiff => None,
12352 SoftWrap::None => Some(wrap_width_for(MAX_LINE_LEN as u32 / 2)),
12353 SoftWrap::EditorWidth => Some(editor_width),
12354 SoftWrap::Column(column) => Some(wrap_width_for(column)),
12355 SoftWrap::Bounded(column) => Some(editor_width.min(wrap_width_for(column))),
12356 }
12357}
12358
12359fn compute_auto_height_layout(
12360 editor: &mut Editor,
12361 min_lines: usize,
12362 max_lines: Option<usize>,
12363 known_dimensions: Size<Option<Pixels>>,
12364 available_width: AvailableSpace,
12365 window: &mut Window,
12366 cx: &mut Context<Editor>,
12367) -> Option<Size<Pixels>> {
12368 let width = known_dimensions.width.or({
12369 if let AvailableSpace::Definite(available_width) = available_width {
12370 Some(available_width)
12371 } else {
12372 None
12373 }
12374 })?;
12375 if let Some(height) = known_dimensions.height {
12376 return Some(size(width, height));
12377 }
12378
12379 let style = editor.style.as_ref().unwrap();
12380 let font_id = window.text_system().resolve_font(&style.text.font());
12381 let font_size = style.text.font_size.to_pixels(window.rem_size());
12382 let line_height = style.text.line_height_in_pixels(window.rem_size());
12383 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
12384
12385 let mut snapshot = editor.snapshot(window, cx);
12386 let gutter_dimensions = snapshot.gutter_dimensions(font_id, font_size, style, window, cx);
12387
12388 editor.gutter_dimensions = gutter_dimensions;
12389 let text_width = width - gutter_dimensions.width;
12390 let overscroll = size(em_width, px(0.));
12391
12392 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
12393 let wrap_width = calculate_wrap_width(editor.soft_wrap_mode(cx), editor_width, em_width);
12394 if wrap_width.is_some() && editor.set_wrap_width(wrap_width, cx) {
12395 snapshot = editor.snapshot(window, cx);
12396 }
12397
12398 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
12399
12400 let min_height = line_height * min_lines as f32;
12401 let content_height = scroll_height.max(min_height);
12402
12403 let final_height = if let Some(max_lines) = max_lines {
12404 let max_height = line_height * max_lines as f32;
12405 content_height.min(max_height)
12406 } else {
12407 content_height
12408 };
12409
12410 Some(size(width, final_height))
12411}
12412
12413#[cfg(test)]
12414mod tests {
12415 use super::*;
12416 use crate::{
12417 Editor, MultiBuffer, SelectionEffects,
12418 display_map::{BlockPlacement, BlockProperties},
12419 editor_tests::{init_test, update_test_language_settings},
12420 };
12421 use gpui::{TestAppContext, VisualTestContext};
12422 use language::{Buffer, language_settings, tree_sitter_python};
12423 use log::info;
12424 use rand::{RngCore, rngs::StdRng};
12425 use std::num::NonZeroU32;
12426 use util::test::sample_text;
12427
12428 #[gpui::test]
12429 async fn test_soft_wrap_editor_width_auto_height_editor(cx: &mut TestAppContext) {
12430 init_test(cx, |_| {});
12431 let window = cx.add_window(|window, cx| {
12432 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
12433 let mut editor = Editor::new(
12434 EditorMode::AutoHeight {
12435 min_lines: 1,
12436 max_lines: None,
12437 },
12438 buffer,
12439 None,
12440 window,
12441 cx,
12442 );
12443 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12444 editor
12445 });
12446 let cx = &mut VisualTestContext::from_window(*window, cx);
12447 let editor = window.root(cx).unwrap();
12448 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12449
12450 for x in 1..=100 {
12451 let (_, state) = cx.draw(
12452 Default::default(),
12453 size(px(200. + 0.13 * x as f32), px(500.)),
12454 |_, _| EditorElement::new(&editor, style.clone()),
12455 );
12456
12457 assert!(
12458 state.position_map.scroll_max.x == 0.,
12459 "Soft wrapped editor should have no horizontal scrolling!"
12460 );
12461 }
12462 }
12463
12464 #[gpui::test]
12465 async fn test_soft_wrap_editor_width_full_editor(cx: &mut TestAppContext) {
12466 init_test(cx, |_| {});
12467 let window = cx.add_window(|window, cx| {
12468 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
12469 let mut editor = Editor::new(EditorMode::full(), buffer, None, window, cx);
12470 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12471 editor
12472 });
12473 let cx = &mut VisualTestContext::from_window(*window, cx);
12474 let editor = window.root(cx).unwrap();
12475 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12476
12477 for x in 1..=100 {
12478 let (_, state) = cx.draw(
12479 Default::default(),
12480 size(px(200. + 0.13 * x as f32), px(500.)),
12481 |_, _| EditorElement::new(&editor, style.clone()),
12482 );
12483
12484 assert!(
12485 state.position_map.scroll_max.x == 0.,
12486 "Soft wrapped editor should have no horizontal scrolling!"
12487 );
12488 }
12489 }
12490
12491 #[gpui::test]
12492 fn test_layout_line_numbers(cx: &mut TestAppContext) {
12493 init_test(cx, |_| {});
12494 let window = cx.add_window(|window, cx| {
12495 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
12496 Editor::new(EditorMode::full(), buffer, None, window, cx)
12497 });
12498
12499 let editor = window.root(cx).unwrap();
12500 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12501 let line_height = window
12502 .update(cx, |_, window, _| {
12503 style.text.line_height_in_pixels(window.rem_size())
12504 })
12505 .unwrap();
12506 let element = EditorElement::new(&editor, style);
12507 let snapshot = window
12508 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
12509 .unwrap();
12510
12511 let layouts = cx
12512 .update_window(*window, |_, window, cx| {
12513 element.layout_line_numbers(
12514 None,
12515 GutterDimensions {
12516 left_padding: Pixels::ZERO,
12517 right_padding: Pixels::ZERO,
12518 width: px(30.0),
12519 margin: Pixels::ZERO,
12520 git_blame_entries_width: None,
12521 },
12522 line_height,
12523 gpui::Point::default(),
12524 DisplayRow(0)..DisplayRow(6),
12525 &(0..6)
12526 .map(|row| RowInfo {
12527 buffer_row: Some(row),
12528 ..Default::default()
12529 })
12530 .collect::<Vec<_>>(),
12531 &BTreeMap::default(),
12532 Some(DisplayRow(0)),
12533 &snapshot,
12534 window,
12535 cx,
12536 )
12537 })
12538 .unwrap();
12539 assert_eq!(layouts.len(), 6);
12540
12541 let relative_rows = window
12542 .update(cx, |editor, window, cx| {
12543 let snapshot = editor.snapshot(window, cx);
12544 snapshot.calculate_relative_line_numbers(
12545 &(DisplayRow(0)..DisplayRow(6)),
12546 DisplayRow(3),
12547 false,
12548 )
12549 })
12550 .unwrap();
12551 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12552 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12553 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12554 // current line has no relative number
12555 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12556 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12557 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12558
12559 // works if cursor is before screen
12560 let relative_rows = window
12561 .update(cx, |editor, window, cx| {
12562 let snapshot = editor.snapshot(window, cx);
12563 snapshot.calculate_relative_line_numbers(
12564 &(DisplayRow(3)..DisplayRow(6)),
12565 DisplayRow(1),
12566 false,
12567 )
12568 })
12569 .unwrap();
12570 assert_eq!(relative_rows.len(), 3);
12571 assert_eq!(relative_rows[&DisplayRow(3)], 2);
12572 assert_eq!(relative_rows[&DisplayRow(4)], 3);
12573 assert_eq!(relative_rows[&DisplayRow(5)], 4);
12574
12575 // works if cursor is after screen
12576 let relative_rows = window
12577 .update(cx, |editor, window, cx| {
12578 let snapshot = editor.snapshot(window, cx);
12579 snapshot.calculate_relative_line_numbers(
12580 &(DisplayRow(0)..DisplayRow(3)),
12581 DisplayRow(6),
12582 false,
12583 )
12584 })
12585 .unwrap();
12586 assert_eq!(relative_rows.len(), 3);
12587 assert_eq!(relative_rows[&DisplayRow(0)], 5);
12588 assert_eq!(relative_rows[&DisplayRow(1)], 4);
12589 assert_eq!(relative_rows[&DisplayRow(2)], 3);
12590
12591 const DELETED_LINE: u32 = 3;
12592 let layouts = cx
12593 .update_window(*window, |_, window, cx| {
12594 element.layout_line_numbers(
12595 None,
12596 GutterDimensions {
12597 left_padding: Pixels::ZERO,
12598 right_padding: Pixels::ZERO,
12599 width: px(30.0),
12600 margin: Pixels::ZERO,
12601 git_blame_entries_width: None,
12602 },
12603 line_height,
12604 gpui::Point::default(),
12605 DisplayRow(0)..DisplayRow(6),
12606 &(0..6)
12607 .map(|row| RowInfo {
12608 buffer_row: Some(row),
12609 diff_status: (row == DELETED_LINE).then(|| {
12610 DiffHunkStatus::deleted(
12611 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
12612 )
12613 }),
12614 ..Default::default()
12615 })
12616 .collect::<Vec<_>>(),
12617 &BTreeMap::default(),
12618 Some(DisplayRow(0)),
12619 &snapshot,
12620 window,
12621 cx,
12622 )
12623 })
12624 .unwrap();
12625 assert_eq!(layouts.len(), 5,);
12626 assert!(
12627 layouts.get(&MultiBufferRow(DELETED_LINE)).is_none(),
12628 "Deleted line should not have a line number"
12629 );
12630 }
12631
12632 #[gpui::test]
12633 async fn test_layout_line_numbers_with_folded_lines(cx: &mut TestAppContext) {
12634 init_test(cx, |_| {});
12635
12636 let python_lang = languages::language("python", tree_sitter_python::LANGUAGE.into());
12637
12638 let window = cx.add_window(|window, cx| {
12639 let buffer = cx.new(|cx| {
12640 Buffer::local(
12641 indoc::indoc! {"
12642 fn test() -> int {
12643 return 2;
12644 }
12645
12646 fn another_test() -> int {
12647 # This is a very peculiar method that is hard to grasp.
12648 return 4;
12649 }
12650 "},
12651 cx,
12652 )
12653 .with_language(python_lang, cx)
12654 });
12655
12656 let buffer = MultiBuffer::build_from_buffer(buffer, cx);
12657 Editor::new(EditorMode::full(), buffer, None, window, cx)
12658 });
12659
12660 let editor = window.root(cx).unwrap();
12661 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12662 let line_height = window
12663 .update(cx, |_, window, _| {
12664 style.text.line_height_in_pixels(window.rem_size())
12665 })
12666 .unwrap();
12667 let element = EditorElement::new(&editor, style);
12668 let snapshot = window
12669 .update(cx, |editor, window, cx| {
12670 editor.fold_at(MultiBufferRow(0), window, cx);
12671 editor.snapshot(window, cx)
12672 })
12673 .unwrap();
12674
12675 let layouts = cx
12676 .update_window(*window, |_, window, cx| {
12677 element.layout_line_numbers(
12678 None,
12679 GutterDimensions {
12680 left_padding: Pixels::ZERO,
12681 right_padding: Pixels::ZERO,
12682 width: px(30.0),
12683 margin: Pixels::ZERO,
12684 git_blame_entries_width: None,
12685 },
12686 line_height,
12687 gpui::Point::default(),
12688 DisplayRow(0)..DisplayRow(6),
12689 &(0..6)
12690 .map(|row| RowInfo {
12691 buffer_row: Some(row),
12692 ..Default::default()
12693 })
12694 .collect::<Vec<_>>(),
12695 &BTreeMap::default(),
12696 Some(DisplayRow(3)),
12697 &snapshot,
12698 window,
12699 cx,
12700 )
12701 })
12702 .unwrap();
12703 assert_eq!(layouts.len(), 6);
12704
12705 let relative_rows = window
12706 .update(cx, |editor, window, cx| {
12707 let snapshot = editor.snapshot(window, cx);
12708 snapshot.calculate_relative_line_numbers(
12709 &(DisplayRow(0)..DisplayRow(6)),
12710 DisplayRow(3),
12711 false,
12712 )
12713 })
12714 .unwrap();
12715 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12716 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12717 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12718 // current line has no relative number
12719 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12720 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12721 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12722 }
12723
12724 #[gpui::test]
12725 fn test_layout_line_numbers_wrapping(cx: &mut TestAppContext) {
12726 init_test(cx, |_| {});
12727 let window = cx.add_window(|window, cx| {
12728 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
12729 Editor::new(EditorMode::full(), buffer, None, window, cx)
12730 });
12731
12732 update_test_language_settings(cx, &|s| {
12733 s.defaults.preferred_line_length = Some(5_u32);
12734 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
12735 });
12736
12737 let editor = window.root(cx).unwrap();
12738 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12739 let line_height = window
12740 .update(cx, |_, window, _| {
12741 style.text.line_height_in_pixels(window.rem_size())
12742 })
12743 .unwrap();
12744 let element = EditorElement::new(&editor, style);
12745 let snapshot = window
12746 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
12747 .unwrap();
12748
12749 let layouts = cx
12750 .update_window(*window, |_, window, cx| {
12751 element.layout_line_numbers(
12752 None,
12753 GutterDimensions {
12754 left_padding: Pixels::ZERO,
12755 right_padding: Pixels::ZERO,
12756 width: px(30.0),
12757 margin: Pixels::ZERO,
12758 git_blame_entries_width: None,
12759 },
12760 line_height,
12761 gpui::Point::default(),
12762 DisplayRow(0)..DisplayRow(6),
12763 &(0..6)
12764 .map(|row| RowInfo {
12765 buffer_row: Some(row),
12766 ..Default::default()
12767 })
12768 .collect::<Vec<_>>(),
12769 &BTreeMap::default(),
12770 Some(DisplayRow(0)),
12771 &snapshot,
12772 window,
12773 cx,
12774 )
12775 })
12776 .unwrap();
12777 assert_eq!(layouts.len(), 3);
12778
12779 let relative_rows = window
12780 .update(cx, |editor, window, cx| {
12781 let snapshot = editor.snapshot(window, cx);
12782 snapshot.calculate_relative_line_numbers(
12783 &(DisplayRow(0)..DisplayRow(6)),
12784 DisplayRow(3),
12785 true,
12786 )
12787 })
12788 .unwrap();
12789
12790 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12791 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12792 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12793 // current line has no relative number
12794 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12795 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12796 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12797
12798 let layouts = cx
12799 .update_window(*window, |_, window, cx| {
12800 element.layout_line_numbers(
12801 None,
12802 GutterDimensions {
12803 left_padding: Pixels::ZERO,
12804 right_padding: Pixels::ZERO,
12805 width: px(30.0),
12806 margin: Pixels::ZERO,
12807 git_blame_entries_width: None,
12808 },
12809 line_height,
12810 gpui::Point::default(),
12811 DisplayRow(0)..DisplayRow(6),
12812 &(0..6)
12813 .map(|row| RowInfo {
12814 buffer_row: Some(row),
12815 diff_status: Some(DiffHunkStatus::deleted(
12816 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
12817 )),
12818 ..Default::default()
12819 })
12820 .collect::<Vec<_>>(),
12821 &BTreeMap::from_iter([(DisplayRow(0), LineHighlightSpec::default())]),
12822 Some(DisplayRow(0)),
12823 &snapshot,
12824 window,
12825 cx,
12826 )
12827 })
12828 .unwrap();
12829 assert!(
12830 layouts.is_empty(),
12831 "Deleted lines should have no line number"
12832 );
12833
12834 let relative_rows = window
12835 .update(cx, |editor, window, cx| {
12836 let snapshot = editor.snapshot(window, cx);
12837 snapshot.calculate_relative_line_numbers(
12838 &(DisplayRow(0)..DisplayRow(6)),
12839 DisplayRow(3),
12840 true,
12841 )
12842 })
12843 .unwrap();
12844
12845 // Deleted lines should still have relative numbers
12846 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12847 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12848 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12849 // current line, even if deleted, has no relative number
12850 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12851 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12852 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12853 }
12854
12855 #[gpui::test]
12856 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
12857 init_test(cx, |_| {});
12858
12859 let window = cx.add_window(|window, cx| {
12860 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
12861 Editor::new(EditorMode::full(), buffer, None, window, cx)
12862 });
12863 let cx = &mut VisualTestContext::from_window(*window, cx);
12864 let editor = window.root(cx).unwrap();
12865 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12866
12867 window
12868 .update(cx, |editor, window, cx| {
12869 editor.cursor_offset_on_selection = true;
12870 editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
12871 s.select_ranges([
12872 Point::new(0, 0)..Point::new(1, 0),
12873 Point::new(3, 2)..Point::new(3, 3),
12874 Point::new(5, 6)..Point::new(6, 0),
12875 ]);
12876 });
12877 })
12878 .unwrap();
12879
12880 let (_, state) = cx.draw(
12881 point(px(500.), px(500.)),
12882 size(px(500.), px(500.)),
12883 |_, _| EditorElement::new(&editor, style),
12884 );
12885
12886 assert_eq!(state.selections.len(), 1);
12887 let local_selections = &state.selections[0].1;
12888 assert_eq!(local_selections.len(), 3);
12889 // moves cursor back one line
12890 assert_eq!(
12891 local_selections[0].head,
12892 DisplayPoint::new(DisplayRow(0), 6)
12893 );
12894 assert_eq!(
12895 local_selections[0].range,
12896 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
12897 );
12898
12899 // moves cursor back one column
12900 assert_eq!(
12901 local_selections[1].range,
12902 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
12903 );
12904 assert_eq!(
12905 local_selections[1].head,
12906 DisplayPoint::new(DisplayRow(3), 2)
12907 );
12908
12909 // leaves cursor on the max point
12910 assert_eq!(
12911 local_selections[2].range,
12912 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
12913 );
12914 assert_eq!(
12915 local_selections[2].head,
12916 DisplayPoint::new(DisplayRow(6), 0)
12917 );
12918
12919 // active lines does not include 1 (even though the range of the selection does)
12920 assert_eq!(
12921 state.active_rows.keys().cloned().collect::<Vec<_>>(),
12922 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
12923 );
12924 }
12925
12926 #[gpui::test]
12927 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
12928 init_test(cx, |_| {});
12929
12930 let window = cx.add_window(|window, cx| {
12931 let buffer = MultiBuffer::build_simple("", cx);
12932 Editor::new(EditorMode::full(), buffer, None, window, cx)
12933 });
12934 let cx = &mut VisualTestContext::from_window(*window, cx);
12935 let editor = window.root(cx).unwrap();
12936 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12937 window
12938 .update(cx, |editor, window, cx| {
12939 editor.set_placeholder_text("hello", window, cx);
12940 editor.insert_blocks(
12941 [BlockProperties {
12942 style: BlockStyle::Fixed,
12943 placement: BlockPlacement::Above(Anchor::min()),
12944 height: Some(3),
12945 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
12946 priority: 0,
12947 }],
12948 None,
12949 cx,
12950 );
12951
12952 // Blur the editor so that it displays placeholder text.
12953 window.blur();
12954 })
12955 .unwrap();
12956
12957 let (_, state) = cx.draw(
12958 point(px(500.), px(500.)),
12959 size(px(500.), px(500.)),
12960 |_, _| EditorElement::new(&editor, style),
12961 );
12962 assert_eq!(state.position_map.line_layouts.len(), 4);
12963 assert_eq!(state.line_numbers.len(), 1);
12964 assert_eq!(
12965 state
12966 .line_numbers
12967 .get(&MultiBufferRow(0))
12968 .map(|line_number| line_number
12969 .segments
12970 .first()
12971 .unwrap()
12972 .shaped_line
12973 .text
12974 .as_ref()),
12975 Some("1")
12976 );
12977 }
12978
12979 #[gpui::test]
12980 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
12981 const TAB_SIZE: u32 = 4;
12982
12983 let input_text = "\t \t|\t| a b";
12984 let expected_invisibles = vec![
12985 Invisible::Tab {
12986 line_start_offset: 0,
12987 line_end_offset: TAB_SIZE as usize,
12988 },
12989 Invisible::Whitespace {
12990 line_offset: TAB_SIZE as usize,
12991 },
12992 Invisible::Tab {
12993 line_start_offset: TAB_SIZE as usize + 1,
12994 line_end_offset: TAB_SIZE as usize * 2,
12995 },
12996 Invisible::Tab {
12997 line_start_offset: TAB_SIZE as usize * 2 + 1,
12998 line_end_offset: TAB_SIZE as usize * 3,
12999 },
13000 Invisible::Whitespace {
13001 line_offset: TAB_SIZE as usize * 3 + 1,
13002 },
13003 Invisible::Whitespace {
13004 line_offset: TAB_SIZE as usize * 3 + 3,
13005 },
13006 ];
13007 assert_eq!(
13008 expected_invisibles.len(),
13009 input_text
13010 .chars()
13011 .filter(|initial_char| initial_char.is_whitespace())
13012 .count(),
13013 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
13014 );
13015
13016 for show_line_numbers in [true, false] {
13017 init_test(cx, |s| {
13018 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
13019 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
13020 });
13021
13022 let actual_invisibles = collect_invisibles_from_new_editor(
13023 cx,
13024 EditorMode::full(),
13025 input_text,
13026 px(500.0),
13027 show_line_numbers,
13028 );
13029
13030 assert_eq!(expected_invisibles, actual_invisibles);
13031 }
13032 }
13033
13034 #[gpui::test]
13035 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
13036 init_test(cx, |s| {
13037 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
13038 s.defaults.tab_size = NonZeroU32::new(4);
13039 });
13040
13041 for editor_mode_without_invisibles in [
13042 EditorMode::SingleLine,
13043 EditorMode::AutoHeight {
13044 min_lines: 1,
13045 max_lines: Some(100),
13046 },
13047 ] {
13048 for show_line_numbers in [true, false] {
13049 let invisibles = collect_invisibles_from_new_editor(
13050 cx,
13051 editor_mode_without_invisibles.clone(),
13052 "\t\t\t| | a b",
13053 px(500.0),
13054 show_line_numbers,
13055 );
13056 assert!(
13057 invisibles.is_empty(),
13058 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
13059 );
13060 }
13061 }
13062 }
13063
13064 #[gpui::test]
13065 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
13066 let tab_size = 4;
13067 let input_text = "a\tbcd ".repeat(9);
13068 let repeated_invisibles = [
13069 Invisible::Tab {
13070 line_start_offset: 1,
13071 line_end_offset: tab_size as usize,
13072 },
13073 Invisible::Whitespace {
13074 line_offset: tab_size as usize + 3,
13075 },
13076 Invisible::Whitespace {
13077 line_offset: tab_size as usize + 4,
13078 },
13079 Invisible::Whitespace {
13080 line_offset: tab_size as usize + 5,
13081 },
13082 Invisible::Whitespace {
13083 line_offset: tab_size as usize + 6,
13084 },
13085 Invisible::Whitespace {
13086 line_offset: tab_size as usize + 7,
13087 },
13088 ];
13089 let expected_invisibles = std::iter::once(repeated_invisibles)
13090 .cycle()
13091 .take(9)
13092 .flatten()
13093 .collect::<Vec<_>>();
13094 assert_eq!(
13095 expected_invisibles.len(),
13096 input_text
13097 .chars()
13098 .filter(|initial_char| initial_char.is_whitespace())
13099 .count(),
13100 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
13101 );
13102 info!("Expected invisibles: {expected_invisibles:?}");
13103
13104 init_test(cx, |_| {});
13105
13106 // Put the same string with repeating whitespace pattern into editors of various size,
13107 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
13108 let resize_step = 10.0;
13109 let mut editor_width = 200.0;
13110 while editor_width <= 1000.0 {
13111 for show_line_numbers in [true, false] {
13112 update_test_language_settings(cx, &|s| {
13113 s.defaults.tab_size = NonZeroU32::new(tab_size);
13114 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
13115 s.defaults.preferred_line_length = Some(editor_width as u32);
13116 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
13117 });
13118
13119 let actual_invisibles = collect_invisibles_from_new_editor(
13120 cx,
13121 EditorMode::full(),
13122 &input_text,
13123 px(editor_width),
13124 show_line_numbers,
13125 );
13126
13127 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
13128 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
13129 let mut i = 0;
13130 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
13131 i = actual_index;
13132 match expected_invisibles.get(i) {
13133 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
13134 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
13135 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
13136 _ => {
13137 panic!(
13138 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
13139 )
13140 }
13141 },
13142 None => {
13143 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
13144 }
13145 }
13146 }
13147 let missing_expected_invisibles = &expected_invisibles[i + 1..];
13148 assert!(
13149 missing_expected_invisibles.is_empty(),
13150 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
13151 );
13152
13153 editor_width += resize_step;
13154 }
13155 }
13156 }
13157
13158 fn collect_invisibles_from_new_editor(
13159 cx: &mut TestAppContext,
13160 editor_mode: EditorMode,
13161 input_text: &str,
13162 editor_width: Pixels,
13163 show_line_numbers: bool,
13164 ) -> Vec<Invisible> {
13165 info!(
13166 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
13167 f32::from(editor_width)
13168 );
13169 let window = cx.add_window(|window, cx| {
13170 let buffer = MultiBuffer::build_simple(input_text, cx);
13171 Editor::new(editor_mode, buffer, None, window, cx)
13172 });
13173 let cx = &mut VisualTestContext::from_window(*window, cx);
13174 let editor = window.root(cx).unwrap();
13175
13176 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
13177 window
13178 .update(cx, |editor, _, cx| {
13179 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
13180 editor.set_wrap_width(Some(editor_width), cx);
13181 editor.set_show_line_numbers(show_line_numbers, cx);
13182 })
13183 .unwrap();
13184 let (_, state) = cx.draw(
13185 point(px(500.), px(500.)),
13186 size(px(500.), px(500.)),
13187 |_, _| EditorElement::new(&editor, style),
13188 );
13189 state
13190 .position_map
13191 .line_layouts
13192 .iter()
13193 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
13194 .cloned()
13195 .collect()
13196 }
13197
13198 #[gpui::test]
13199 fn test_merge_overlapping_ranges() {
13200 let base_bg = Hsla::white();
13201 let color1 = Hsla {
13202 h: 0.0,
13203 s: 0.5,
13204 l: 0.5,
13205 a: 0.5,
13206 };
13207 let color2 = Hsla {
13208 h: 120.0,
13209 s: 0.5,
13210 l: 0.5,
13211 a: 0.5,
13212 };
13213
13214 let display_point = |col| DisplayPoint::new(DisplayRow(0), col);
13215 let cols = |v: &Vec<(Range<DisplayPoint>, Hsla)>| -> Vec<(u32, u32)> {
13216 v.iter()
13217 .map(|(r, _)| (r.start.column(), r.end.column()))
13218 .collect()
13219 };
13220
13221 // Test overlapping ranges blend colors
13222 let overlapping = vec![
13223 (display_point(5)..display_point(15), color1),
13224 (display_point(10)..display_point(20), color2),
13225 ];
13226 let result = EditorElement::merge_overlapping_ranges(overlapping, base_bg);
13227 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
13228
13229 // Test middle segment should have blended color
13230 let blended = Hsla::blend(Hsla::blend(base_bg, color1), color2);
13231 assert_eq!(result[1].1, blended);
13232
13233 // Test adjacent same-color ranges merge
13234 let adjacent_same = vec![
13235 (display_point(5)..display_point(10), color1),
13236 (display_point(10)..display_point(15), color1),
13237 ];
13238 let result = EditorElement::merge_overlapping_ranges(adjacent_same, base_bg);
13239 assert_eq!(cols(&result), vec![(5, 15)]);
13240
13241 // Test contained range splits
13242 let contained = vec![
13243 (display_point(5)..display_point(20), color1),
13244 (display_point(10)..display_point(15), color2),
13245 ];
13246 let result = EditorElement::merge_overlapping_ranges(contained, base_bg);
13247 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
13248
13249 // Test multiple overlaps split at every boundary
13250 let color3 = Hsla {
13251 h: 240.0,
13252 s: 0.5,
13253 l: 0.5,
13254 a: 0.5,
13255 };
13256 let complex = vec![
13257 (display_point(5)..display_point(12), color1),
13258 (display_point(8)..display_point(16), color2),
13259 (display_point(10)..display_point(14), color3),
13260 ];
13261 let result = EditorElement::merge_overlapping_ranges(complex, base_bg);
13262 assert_eq!(
13263 cols(&result),
13264 vec![(5, 8), (8, 10), (10, 12), (12, 14), (14, 16)]
13265 );
13266 }
13267
13268 #[gpui::test]
13269 fn test_bg_segments_per_row() {
13270 let base_bg = Hsla::white();
13271
13272 // Case A: selection spans three display rows: row 1 [5, end), full row 2, row 3 [0, 7)
13273 {
13274 let selection_color = Hsla {
13275 h: 200.0,
13276 s: 0.5,
13277 l: 0.5,
13278 a: 0.5,
13279 };
13280 let player_color = PlayerColor {
13281 cursor: selection_color,
13282 background: selection_color,
13283 selection: selection_color,
13284 };
13285
13286 let spanning_selection = SelectionLayout {
13287 head: DisplayPoint::new(DisplayRow(3), 7),
13288 cursor_shape: CursorShape::Bar,
13289 is_newest: true,
13290 is_local: true,
13291 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 7),
13292 active_rows: DisplayRow(1)..DisplayRow(4),
13293 user_name: None,
13294 };
13295
13296 let selections = vec![(player_color, vec![spanning_selection])];
13297 let result = EditorElement::bg_segments_per_row(
13298 DisplayRow(0)..DisplayRow(5),
13299 &selections,
13300 &[],
13301 base_bg,
13302 );
13303
13304 assert_eq!(result.len(), 5);
13305 assert!(result[0].is_empty());
13306 assert_eq!(result[1].len(), 1);
13307 assert_eq!(result[2].len(), 1);
13308 assert_eq!(result[3].len(), 1);
13309 assert!(result[4].is_empty());
13310
13311 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
13312 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
13313 assert_eq!(result[1][0].0.end.column(), u32::MAX);
13314 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
13315 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
13316 assert_eq!(result[2][0].0.end.column(), u32::MAX);
13317 assert_eq!(result[3][0].0.start, DisplayPoint::new(DisplayRow(3), 0));
13318 assert_eq!(result[3][0].0.end, DisplayPoint::new(DisplayRow(3), 7));
13319 }
13320
13321 // Case B: selection ends exactly at the start of row 3, excluding row 3
13322 {
13323 let selection_color = Hsla {
13324 h: 120.0,
13325 s: 0.5,
13326 l: 0.5,
13327 a: 0.5,
13328 };
13329 let player_color = PlayerColor {
13330 cursor: selection_color,
13331 background: selection_color,
13332 selection: selection_color,
13333 };
13334
13335 let selection = SelectionLayout {
13336 head: DisplayPoint::new(DisplayRow(2), 0),
13337 cursor_shape: CursorShape::Bar,
13338 is_newest: true,
13339 is_local: true,
13340 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 0),
13341 active_rows: DisplayRow(1)..DisplayRow(3),
13342 user_name: None,
13343 };
13344
13345 let selections = vec![(player_color, vec![selection])];
13346 let result = EditorElement::bg_segments_per_row(
13347 DisplayRow(0)..DisplayRow(4),
13348 &selections,
13349 &[],
13350 base_bg,
13351 );
13352
13353 assert_eq!(result.len(), 4);
13354 assert!(result[0].is_empty());
13355 assert_eq!(result[1].len(), 1);
13356 assert_eq!(result[2].len(), 1);
13357 assert!(result[3].is_empty());
13358
13359 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
13360 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
13361 assert_eq!(result[1][0].0.end.column(), u32::MAX);
13362 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
13363 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
13364 assert_eq!(result[2][0].0.end.column(), u32::MAX);
13365 }
13366 }
13367
13368 #[cfg(test)]
13369 fn generate_test_run(len: usize, color: Hsla) -> TextRun {
13370 TextRun {
13371 len,
13372 color,
13373 ..Default::default()
13374 }
13375 }
13376
13377 #[gpui::test]
13378 fn test_split_runs_by_bg_segments(cx: &mut gpui::TestAppContext) {
13379 init_test(cx, |_| {});
13380
13381 let dx = |start: u32, end: u32| {
13382 DisplayPoint::new(DisplayRow(0), start)..DisplayPoint::new(DisplayRow(0), end)
13383 };
13384
13385 let text_color = Hsla {
13386 h: 210.0,
13387 s: 0.1,
13388 l: 0.4,
13389 a: 1.0,
13390 };
13391 let bg_1 = Hsla {
13392 h: 30.0,
13393 s: 0.6,
13394 l: 0.8,
13395 a: 1.0,
13396 };
13397 let bg_2 = Hsla {
13398 h: 200.0,
13399 s: 0.6,
13400 l: 0.2,
13401 a: 1.0,
13402 };
13403 let min_contrast = 45.0;
13404 let adjusted_bg1 = ensure_minimum_contrast(text_color, bg_1, min_contrast);
13405 let adjusted_bg2 = ensure_minimum_contrast(text_color, bg_2, min_contrast);
13406
13407 // Case A: single run; disjoint segments inside the run
13408 {
13409 let runs = vec![generate_test_run(20, text_color)];
13410 let segs = vec![(dx(5, 10), bg_1), (dx(12, 16), bg_2)];
13411 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13412 // Expected slices: [0,5) [5,10) [10,12) [12,16) [16,20)
13413 assert_eq!(
13414 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13415 vec![5, 5, 2, 4, 4]
13416 );
13417 assert_eq!(out[0].color, text_color);
13418 assert_eq!(out[1].color, adjusted_bg1);
13419 assert_eq!(out[2].color, text_color);
13420 assert_eq!(out[3].color, adjusted_bg2);
13421 assert_eq!(out[4].color, text_color);
13422 }
13423
13424 // Case B: multiple runs; segment extends to end of line (u32::MAX)
13425 {
13426 let runs = vec![
13427 generate_test_run(8, text_color),
13428 generate_test_run(7, text_color),
13429 ];
13430 let segs = vec![(dx(6, u32::MAX), bg_1)];
13431 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13432 // Expected slices across runs: [0,6) [6,8) | [0,7)
13433 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![6, 2, 7]);
13434 assert_eq!(out[0].color, text_color);
13435 assert_eq!(out[1].color, adjusted_bg1);
13436 assert_eq!(out[2].color, adjusted_bg1);
13437 }
13438
13439 // Case C: multi-byte characters
13440 {
13441 // for text: "Hello π δΈη!"
13442 let runs = vec![
13443 generate_test_run(5, text_color), // "Hello"
13444 generate_test_run(6, text_color), // " π "
13445 generate_test_run(6, text_color), // "δΈη"
13446 generate_test_run(1, text_color), // "!"
13447 ];
13448 // selecting "π δΈ"
13449 let segs = vec![(dx(6, 14), bg_1)];
13450 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13451 // "Hello" | " " | "π " | "δΈ" | "η" | "!"
13452 assert_eq!(
13453 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13454 vec![5, 1, 5, 3, 3, 1]
13455 );
13456 assert_eq!(out[0].color, text_color); // "Hello"
13457 assert_eq!(out[2].color, adjusted_bg1); // "π "
13458 assert_eq!(out[3].color, adjusted_bg1); // "δΈ"
13459 assert_eq!(out[4].color, text_color); // "η"
13460 assert_eq!(out[5].color, text_color); // "!"
13461 }
13462
13463 // Case D: split multiple consecutive text runs with segments
13464 {
13465 let segs = vec![
13466 (dx(2, 4), bg_1), // selecting "cd"
13467 (dx(4, 8), bg_2), // selecting "efgh"
13468 (dx(9, 11), bg_1), // selecting "jk"
13469 (dx(12, 16), bg_2), // selecting "mnop"
13470 (dx(18, 19), bg_1), // selecting "s"
13471 ];
13472
13473 // for text: "abcdef"
13474 let runs = vec![
13475 generate_test_run(2, text_color), // ab
13476 generate_test_run(4, text_color), // cdef
13477 ];
13478 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13479 // new splits "ab", "cd", "ef"
13480 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![2, 2, 2]);
13481 assert_eq!(out[0].color, text_color);
13482 assert_eq!(out[1].color, adjusted_bg1);
13483 assert_eq!(out[2].color, adjusted_bg2);
13484
13485 // for text: "ghijklmn"
13486 let runs = vec![
13487 generate_test_run(3, text_color), // ghi
13488 generate_test_run(2, text_color), // jk
13489 generate_test_run(3, text_color), // lmn
13490 ];
13491 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 6); // 2 + 4 from first run
13492 // new splits "gh", "i", "jk", "l", "mn"
13493 assert_eq!(
13494 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13495 vec![2, 1, 2, 1, 2]
13496 );
13497 assert_eq!(out[0].color, adjusted_bg2);
13498 assert_eq!(out[1].color, text_color);
13499 assert_eq!(out[2].color, adjusted_bg1);
13500 assert_eq!(out[3].color, text_color);
13501 assert_eq!(out[4].color, adjusted_bg2);
13502
13503 // for text: "opqrs"
13504 let runs = vec![
13505 generate_test_run(1, text_color), // o
13506 generate_test_run(4, text_color), // pqrs
13507 ];
13508 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 14); // 6 + 3 + 2 + 3 from first two runs
13509 // new splits "o", "p", "qr", "s"
13510 assert_eq!(
13511 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13512 vec![1, 1, 2, 1]
13513 );
13514 assert_eq!(out[0].color, adjusted_bg2);
13515 assert_eq!(out[1].color, adjusted_bg2);
13516 assert_eq!(out[2].color, text_color);
13517 assert_eq!(out[3].color, adjusted_bg1);
13518 }
13519 }
13520
13521 #[test]
13522 fn test_spacer_pattern_period() {
13523 // line height is smaller than target height, so we just return half the line height
13524 assert_eq!(EditorElement::spacer_pattern_period(10.0, 20.0), 5.0);
13525
13526 // line height is exactly half the target height, perfect match
13527 assert_eq!(EditorElement::spacer_pattern_period(20.0, 10.0), 10.0);
13528
13529 // line height is close to half the target height
13530 assert_eq!(EditorElement::spacer_pattern_period(20.0, 9.0), 10.0);
13531
13532 // line height is close to 1/4 the target height
13533 assert_eq!(EditorElement::spacer_pattern_period(20.0, 4.8), 5.0);
13534 }
13535
13536 #[gpui::test(iterations = 100)]
13537 fn test_random_spacer_pattern_period(mut rng: StdRng) {
13538 let line_height = rng.next_u32() as f32;
13539 let target_height = rng.next_u32() as f32;
13540
13541 let result = EditorElement::spacer_pattern_period(line_height, target_height);
13542
13543 let k = line_height / result;
13544 assert!(k - k.round() < 0.0000001); // approximately integer
13545 assert!((k.round() as u32).is_multiple_of(2));
13546 }
13547
13548 #[test]
13549 fn test_calculate_wrap_width() {
13550 let editor_width = px(800.0);
13551 let em_width = px(8.0);
13552
13553 assert_eq!(
13554 calculate_wrap_width(SoftWrap::GitDiff, editor_width, em_width),
13555 None,
13556 );
13557
13558 assert_eq!(
13559 calculate_wrap_width(SoftWrap::None, editor_width, em_width),
13560 Some(px((MAX_LINE_LEN as f32 / 2.0 * 8.0).ceil())),
13561 );
13562
13563 assert_eq!(
13564 calculate_wrap_width(SoftWrap::EditorWidth, editor_width, em_width),
13565 Some(px(800.0)),
13566 );
13567
13568 assert_eq!(
13569 calculate_wrap_width(SoftWrap::Column(72), editor_width, em_width),
13570 Some(px((72.0 * 8.0_f32).ceil())),
13571 );
13572
13573 assert_eq!(
13574 calculate_wrap_width(SoftWrap::Bounded(72), editor_width, em_width),
13575 Some(px((72.0 * 8.0_f32).ceil())),
13576 );
13577 assert_eq!(
13578 calculate_wrap_width(SoftWrap::Bounded(200), px(400.0), em_width),
13579 Some(px(400.0)),
13580 );
13581 }
13582}