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, checkerboard, deferred, div, fill,
51 linear_color_stop, linear_gradient, outline, 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 blocks: Vec<BlockLayout>,
190 row_block_types: HashMap<DisplayRow, bool>,
191 resized_blocks: Option<HashMap<CustomBlockId, u32>>,
192}
193
194pub struct EditorElement {
195 editor: Entity<Editor>,
196 style: EditorStyle,
197 split_side: Option<SplitSide>,
198}
199
200#[derive(Debug, Clone, Copy, PartialEq, Eq)]
201pub enum SplitSide {
202 Left,
203 Right,
204}
205
206impl EditorElement {
207 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
208
209 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
210 Self {
211 editor: editor.clone(),
212 style,
213 split_side: None,
214 }
215 }
216
217 pub fn set_split_side(&mut self, side: SplitSide) {
218 self.split_side = Some(side);
219 }
220
221 fn should_show_buffer_headers(&self) -> bool {
222 self.split_side.is_none()
223 }
224
225 fn register_actions(&self, window: &mut Window, cx: &mut App) {
226 let editor = &self.editor;
227 editor.update(cx, |editor, cx| {
228 for action in editor.editor_actions.borrow().values() {
229 (action)(editor, window, cx)
230 }
231 });
232
233 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
234 crate::clangd_ext::apply_related_actions(editor, window, cx);
235
236 register_action(editor, window, Editor::open_context_menu);
237 register_action(editor, window, Editor::move_left);
238 register_action(editor, window, Editor::move_right);
239 register_action(editor, window, Editor::move_down);
240 register_action(editor, window, Editor::move_down_by_lines);
241 register_action(editor, window, Editor::select_down_by_lines);
242 register_action(editor, window, Editor::move_up);
243 register_action(editor, window, Editor::move_up_by_lines);
244 register_action(editor, window, Editor::select_up_by_lines);
245 register_action(editor, window, Editor::select_page_down);
246 register_action(editor, window, Editor::select_page_up);
247 register_action(editor, window, Editor::cancel);
248 register_action(editor, window, Editor::newline);
249 register_action(editor, window, Editor::newline_above);
250 register_action(editor, window, Editor::newline_below);
251 register_action(editor, window, Editor::backspace);
252 register_action(editor, window, Editor::blame_hover);
253 register_action(editor, window, Editor::delete);
254 register_action(editor, window, Editor::tab);
255 register_action(editor, window, Editor::next_snippet_tabstop);
256 register_action(editor, window, Editor::previous_snippet_tabstop);
257 register_action(editor, window, Editor::backtab);
258 register_action(editor, window, Editor::indent);
259 register_action(editor, window, Editor::outdent);
260 register_action(editor, window, Editor::autoindent);
261 register_action(editor, window, Editor::delete_line);
262 register_action(editor, window, Editor::join_lines);
263 register_action(editor, window, Editor::sort_lines_by_length);
264 register_action(editor, window, Editor::sort_lines_case_sensitive);
265 register_action(editor, window, Editor::sort_lines_case_insensitive);
266 register_action(editor, window, Editor::reverse_lines);
267 register_action(editor, window, Editor::shuffle_lines);
268 register_action(editor, window, Editor::rotate_selections_forward);
269 register_action(editor, window, Editor::rotate_selections_backward);
270 register_action(editor, window, Editor::convert_indentation_to_spaces);
271 register_action(editor, window, Editor::convert_indentation_to_tabs);
272 register_action(editor, window, Editor::convert_to_upper_case);
273 register_action(editor, window, Editor::convert_to_lower_case);
274 register_action(editor, window, Editor::convert_to_title_case);
275 register_action(editor, window, Editor::convert_to_snake_case);
276 register_action(editor, window, Editor::convert_to_kebab_case);
277 register_action(editor, window, Editor::convert_to_upper_camel_case);
278 register_action(editor, window, Editor::convert_to_lower_camel_case);
279 register_action(editor, window, Editor::convert_to_opposite_case);
280 register_action(editor, window, Editor::convert_to_sentence_case);
281 register_action(editor, window, Editor::toggle_case);
282 register_action(editor, window, Editor::convert_to_rot13);
283 register_action(editor, window, Editor::convert_to_rot47);
284 register_action(editor, window, Editor::delete_to_previous_word_start);
285 register_action(editor, window, Editor::delete_to_previous_subword_start);
286 register_action(editor, window, Editor::delete_to_next_word_end);
287 register_action(editor, window, Editor::delete_to_next_subword_end);
288 register_action(editor, window, Editor::delete_to_beginning_of_line);
289 register_action(editor, window, Editor::delete_to_end_of_line);
290 register_action(editor, window, Editor::cut_to_end_of_line);
291 register_action(editor, window, Editor::duplicate_line_up);
292 register_action(editor, window, Editor::duplicate_line_down);
293 register_action(editor, window, Editor::duplicate_selection);
294 register_action(editor, window, Editor::move_line_up);
295 register_action(editor, window, Editor::move_line_down);
296 register_action(editor, window, Editor::transpose);
297 register_action(editor, window, Editor::rewrap);
298 register_action(editor, window, Editor::cut);
299 register_action(editor, window, Editor::kill_ring_cut);
300 register_action(editor, window, Editor::kill_ring_yank);
301 register_action(editor, window, Editor::copy);
302 register_action(editor, window, Editor::copy_and_trim);
303 register_action(editor, window, Editor::diff_clipboard_with_selection);
304 register_action(editor, window, Editor::paste);
305 register_action(editor, window, Editor::undo);
306 register_action(editor, window, Editor::redo);
307 register_action(editor, window, Editor::move_page_up);
308 register_action(editor, window, Editor::move_page_down);
309 register_action(editor, window, Editor::next_screen);
310 register_action(editor, window, Editor::scroll_cursor_top);
311 register_action(editor, window, Editor::scroll_cursor_center);
312 register_action(editor, window, Editor::scroll_cursor_bottom);
313 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
314 register_action(editor, window, |editor, _: &LineDown, window, cx| {
315 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
316 });
317 register_action(editor, window, |editor, _: &LineUp, window, cx| {
318 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
319 });
320 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
321 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
322 });
323 register_action(
324 editor,
325 window,
326 |editor, HandleInput(text): &HandleInput, window, cx| {
327 if text.is_empty() {
328 return;
329 }
330 editor.handle_input(text, window, cx);
331 },
332 );
333 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
334 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
335 });
336 register_action(editor, window, |editor, _: &PageDown, window, cx| {
337 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
338 });
339 register_action(editor, window, |editor, _: &PageUp, window, cx| {
340 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
341 });
342 register_action(editor, window, Editor::move_to_previous_word_start);
343 register_action(editor, window, Editor::move_to_previous_subword_start);
344 register_action(editor, window, Editor::move_to_next_word_end);
345 register_action(editor, window, Editor::move_to_next_subword_end);
346 register_action(editor, window, Editor::move_to_beginning_of_line);
347 register_action(editor, window, Editor::move_to_end_of_line);
348 register_action(editor, window, Editor::move_to_start_of_paragraph);
349 register_action(editor, window, Editor::move_to_end_of_paragraph);
350 register_action(editor, window, Editor::move_to_beginning);
351 register_action(editor, window, Editor::move_to_end);
352 register_action(editor, window, Editor::move_to_start_of_excerpt);
353 register_action(editor, window, Editor::move_to_start_of_next_excerpt);
354 register_action(editor, window, Editor::move_to_end_of_excerpt);
355 register_action(editor, window, Editor::move_to_end_of_previous_excerpt);
356 register_action(editor, window, Editor::select_up);
357 register_action(editor, window, Editor::select_down);
358 register_action(editor, window, Editor::select_left);
359 register_action(editor, window, Editor::select_right);
360 register_action(editor, window, Editor::select_to_previous_word_start);
361 register_action(editor, window, Editor::select_to_previous_subword_start);
362 register_action(editor, window, Editor::select_to_next_word_end);
363 register_action(editor, window, Editor::select_to_next_subword_end);
364 register_action(editor, window, Editor::select_to_beginning_of_line);
365 register_action(editor, window, Editor::select_to_end_of_line);
366 register_action(editor, window, Editor::select_to_start_of_paragraph);
367 register_action(editor, window, Editor::select_to_end_of_paragraph);
368 register_action(editor, window, Editor::select_to_start_of_excerpt);
369 register_action(editor, window, Editor::select_to_start_of_next_excerpt);
370 register_action(editor, window, Editor::select_to_end_of_excerpt);
371 register_action(editor, window, Editor::select_to_end_of_previous_excerpt);
372 register_action(editor, window, Editor::select_to_beginning);
373 register_action(editor, window, Editor::select_to_end);
374 register_action(editor, window, Editor::select_all);
375 register_action(editor, window, |editor, action, window, cx| {
376 editor.select_all_matches(action, window, cx).log_err();
377 });
378 register_action(editor, window, Editor::select_line);
379 register_action(editor, window, Editor::split_selection_into_lines);
380 register_action(editor, window, Editor::add_selection_above);
381 register_action(editor, window, Editor::add_selection_below);
382 register_action(editor, window, Editor::insert_snippet_at_selections);
383 register_action(editor, window, |editor, action, window, cx| {
384 editor.select_next(action, window, cx).log_err();
385 });
386 register_action(editor, window, |editor, action, window, cx| {
387 editor.select_previous(action, window, cx).log_err();
388 });
389 register_action(editor, window, |editor, action, window, cx| {
390 editor.find_next_match(action, window, cx).log_err();
391 });
392 register_action(editor, window, |editor, action, window, cx| {
393 editor.find_previous_match(action, window, cx).log_err();
394 });
395 register_action(editor, window, Editor::toggle_comments);
396 register_action(editor, window, Editor::select_larger_syntax_node);
397 register_action(editor, window, Editor::select_smaller_syntax_node);
398 register_action(editor, window, Editor::select_next_syntax_node);
399 register_action(editor, window, Editor::select_prev_syntax_node);
400 register_action(
401 editor,
402 window,
403 Editor::select_to_start_of_larger_syntax_node,
404 );
405 register_action(editor, window, Editor::select_to_end_of_larger_syntax_node);
406 register_action(editor, window, Editor::unwrap_syntax_node);
407 register_action(editor, window, Editor::move_to_start_of_larger_syntax_node);
408 register_action(editor, window, Editor::move_to_end_of_larger_syntax_node);
409 register_action(editor, window, Editor::select_enclosing_symbol);
410 register_action(editor, window, Editor::move_to_enclosing_bracket);
411 register_action(editor, window, Editor::undo_selection);
412 register_action(editor, window, Editor::redo_selection);
413 if editor.read(cx).buffer_kind(cx) == ItemBufferKind::Multibuffer {
414 register_action(editor, window, Editor::expand_excerpts);
415 register_action(editor, window, Editor::expand_excerpts_up);
416 register_action(editor, window, Editor::expand_excerpts_down);
417 }
418 register_action(editor, window, Editor::go_to_diagnostic);
419 register_action(editor, window, Editor::go_to_prev_diagnostic);
420 register_action(editor, window, Editor::go_to_next_hunk);
421 register_action(editor, window, Editor::go_to_prev_hunk);
422 register_action(editor, window, Editor::go_to_next_document_highlight);
423 register_action(editor, window, Editor::go_to_prev_document_highlight);
424 register_action(editor, window, |editor, action, window, cx| {
425 editor
426 .go_to_definition(action, window, cx)
427 .detach_and_log_err(cx);
428 });
429 register_action(editor, window, |editor, action, window, cx| {
430 editor
431 .go_to_definition_split(action, window, cx)
432 .detach_and_log_err(cx);
433 });
434 register_action(editor, window, |editor, action, window, cx| {
435 editor
436 .go_to_declaration(action, window, cx)
437 .detach_and_log_err(cx);
438 });
439 register_action(editor, window, |editor, action, window, cx| {
440 editor
441 .go_to_declaration_split(action, window, cx)
442 .detach_and_log_err(cx);
443 });
444 register_action(editor, window, |editor, action, window, cx| {
445 editor
446 .go_to_implementation(action, window, cx)
447 .detach_and_log_err(cx);
448 });
449 register_action(editor, window, |editor, action, window, cx| {
450 editor
451 .go_to_implementation_split(action, window, cx)
452 .detach_and_log_err(cx);
453 });
454 register_action(editor, window, |editor, action, window, cx| {
455 editor
456 .go_to_type_definition(action, window, cx)
457 .detach_and_log_err(cx);
458 });
459 register_action(editor, window, |editor, action, window, cx| {
460 editor
461 .go_to_type_definition_split(action, window, cx)
462 .detach_and_log_err(cx);
463 });
464 register_action(editor, window, Editor::open_url);
465 register_action(editor, window, Editor::open_selected_filename);
466 register_action(editor, window, Editor::fold);
467 register_action(editor, window, Editor::fold_at_level);
468 register_action(editor, window, Editor::fold_at_level_1);
469 register_action(editor, window, Editor::fold_at_level_2);
470 register_action(editor, window, Editor::fold_at_level_3);
471 register_action(editor, window, Editor::fold_at_level_4);
472 register_action(editor, window, Editor::fold_at_level_5);
473 register_action(editor, window, Editor::fold_at_level_6);
474 register_action(editor, window, Editor::fold_at_level_7);
475 register_action(editor, window, Editor::fold_at_level_8);
476 register_action(editor, window, Editor::fold_at_level_9);
477 register_action(editor, window, Editor::fold_all);
478 register_action(editor, window, Editor::fold_function_bodies);
479 register_action(editor, window, Editor::fold_recursive);
480 register_action(editor, window, Editor::toggle_fold);
481 register_action(editor, window, Editor::toggle_fold_recursive);
482 register_action(editor, window, Editor::toggle_fold_all);
483 register_action(editor, window, Editor::unfold_lines);
484 register_action(editor, window, Editor::unfold_recursive);
485 register_action(editor, window, Editor::unfold_all);
486 register_action(editor, window, Editor::fold_selected_ranges);
487 register_action(editor, window, Editor::set_mark);
488 register_action(editor, window, Editor::swap_selection_ends);
489 register_action(editor, window, Editor::show_completions);
490 register_action(editor, window, Editor::show_word_completions);
491 register_action(editor, window, Editor::toggle_code_actions);
492 register_action(editor, window, Editor::open_excerpts);
493 register_action(editor, window, Editor::open_excerpts_in_split);
494 register_action(editor, window, Editor::toggle_soft_wrap);
495 register_action(editor, window, Editor::toggle_tab_bar);
496 register_action(editor, window, Editor::toggle_line_numbers);
497 register_action(editor, window, Editor::toggle_relative_line_numbers);
498 register_action(editor, window, Editor::toggle_indent_guides);
499 register_action(editor, window, Editor::toggle_inlay_hints);
500 register_action(editor, window, Editor::toggle_semantic_highlights);
501 register_action(editor, window, Editor::toggle_edit_predictions);
502 if editor.read(cx).diagnostics_enabled() {
503 register_action(editor, window, Editor::toggle_diagnostics);
504 }
505 if editor.read(cx).inline_diagnostics_enabled() {
506 register_action(editor, window, Editor::toggle_inline_diagnostics);
507 }
508 if editor.read(cx).supports_minimap(cx) {
509 register_action(editor, window, Editor::toggle_minimap);
510 }
511 register_action(editor, window, hover_popover::hover);
512 register_action(editor, window, Editor::reveal_in_finder);
513 register_action(editor, window, Editor::copy_path);
514 register_action(editor, window, Editor::copy_relative_path);
515 register_action(editor, window, Editor::copy_file_name);
516 register_action(editor, window, Editor::copy_file_name_without_extension);
517 register_action(editor, window, Editor::copy_highlight_json);
518 register_action(editor, window, Editor::copy_permalink_to_line);
519 register_action(editor, window, Editor::open_permalink_to_line);
520 register_action(editor, window, Editor::copy_file_location);
521 register_action(editor, window, Editor::toggle_git_blame);
522 register_action(editor, window, Editor::toggle_git_blame_inline);
523 register_action(editor, window, Editor::open_git_blame_commit);
524 register_action(editor, window, Editor::toggle_selected_diff_hunks);
525 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
526 register_action(editor, window, Editor::stage_and_next);
527 register_action(editor, window, Editor::unstage_and_next);
528 register_action(editor, window, Editor::expand_all_diff_hunks);
529 register_action(editor, window, Editor::collapse_all_diff_hunks);
530 register_action(editor, window, Editor::toggle_review_comments_expanded);
531 register_action(editor, window, Editor::submit_diff_review_comment_action);
532 register_action(editor, window, Editor::edit_review_comment);
533 register_action(editor, window, Editor::delete_review_comment);
534 register_action(editor, window, Editor::confirm_edit_review_comment_action);
535 register_action(editor, window, Editor::cancel_edit_review_comment_action);
536 register_action(editor, window, Editor::go_to_previous_change);
537 register_action(editor, window, Editor::go_to_next_change);
538 register_action(editor, window, Editor::go_to_prev_reference);
539 register_action(editor, window, Editor::go_to_next_reference);
540
541 register_action(editor, window, |editor, action, window, cx| {
542 if let Some(task) = editor.format(action, window, cx) {
543 editor.detach_and_notify_err(task, window, cx);
544 } else {
545 cx.propagate();
546 }
547 });
548 register_action(editor, window, |editor, action, window, cx| {
549 if let Some(task) = editor.format_selections(action, window, cx) {
550 editor.detach_and_notify_err(task, window, cx);
551 } else {
552 cx.propagate();
553 }
554 });
555 register_action(editor, window, |editor, action, window, cx| {
556 if let Some(task) = editor.organize_imports(action, window, cx) {
557 editor.detach_and_notify_err(task, window, cx);
558 } else {
559 cx.propagate();
560 }
561 });
562 register_action(editor, window, Editor::restart_language_server);
563 register_action(editor, window, Editor::stop_language_server);
564 register_action(editor, window, Editor::show_character_palette);
565 register_action(editor, window, |editor, action, window, cx| {
566 if let Some(task) = editor.confirm_completion(action, window, cx) {
567 editor.detach_and_notify_err(task, window, cx);
568 } else {
569 cx.propagate();
570 }
571 });
572 register_action(editor, window, |editor, action, window, cx| {
573 if let Some(task) = editor.confirm_completion_replace(action, window, cx) {
574 editor.detach_and_notify_err(task, window, cx);
575 } else {
576 cx.propagate();
577 }
578 });
579 register_action(editor, window, |editor, action, window, cx| {
580 if let Some(task) = editor.confirm_completion_insert(action, window, cx) {
581 editor.detach_and_notify_err(task, window, cx);
582 } else {
583 cx.propagate();
584 }
585 });
586 register_action(editor, window, |editor, action, window, cx| {
587 if let Some(task) = editor.compose_completion(action, window, cx) {
588 editor.detach_and_notify_err(task, window, cx);
589 } else {
590 cx.propagate();
591 }
592 });
593 register_action(editor, window, |editor, action, window, cx| {
594 if let Some(task) = editor.confirm_code_action(action, window, cx) {
595 editor.detach_and_notify_err(task, window, cx);
596 } else {
597 cx.propagate();
598 }
599 });
600 register_action(editor, window, |editor, action, window, cx| {
601 if let Some(task) = editor.rename(action, window, cx) {
602 editor.detach_and_notify_err(task, window, cx);
603 } else {
604 cx.propagate();
605 }
606 });
607 register_action(editor, window, |editor, action, window, cx| {
608 if let Some(task) = editor.confirm_rename(action, window, cx) {
609 editor.detach_and_notify_err(task, window, cx);
610 } else {
611 cx.propagate();
612 }
613 });
614 register_action(editor, window, |editor, action, window, cx| {
615 if let Some(task) = editor.find_all_references(action, window, cx) {
616 task.detach_and_log_err(cx);
617 } else {
618 cx.propagate();
619 }
620 });
621 register_action(editor, window, Editor::show_signature_help);
622 register_action(editor, window, Editor::signature_help_prev);
623 register_action(editor, window, Editor::signature_help_next);
624 register_action(editor, window, Editor::show_edit_prediction);
625 register_action(editor, window, Editor::context_menu_first);
626 register_action(editor, window, Editor::context_menu_prev);
627 register_action(editor, window, Editor::context_menu_next);
628 register_action(editor, window, Editor::context_menu_last);
629 register_action(editor, window, Editor::display_cursor_names);
630 register_action(editor, window, Editor::unique_lines_case_insensitive);
631 register_action(editor, window, Editor::unique_lines_case_sensitive);
632 register_action(editor, window, Editor::accept_next_word_edit_prediction);
633 register_action(editor, window, Editor::accept_next_line_edit_prediction);
634 register_action(editor, window, Editor::accept_edit_prediction);
635 register_action(editor, window, Editor::restore_file);
636 register_action(editor, window, Editor::git_restore);
637 register_action(editor, window, Editor::apply_all_diff_hunks);
638 register_action(editor, window, Editor::apply_selected_diff_hunks);
639 register_action(editor, window, Editor::open_active_item_in_terminal);
640 register_action(editor, window, Editor::reload_file);
641 register_action(editor, window, Editor::spawn_nearest_task);
642 register_action(editor, window, Editor::insert_uuid_v4);
643 register_action(editor, window, Editor::insert_uuid_v7);
644 register_action(editor, window, Editor::open_selections_in_multibuffer);
645 register_action(editor, window, Editor::toggle_breakpoint);
646 register_action(editor, window, Editor::edit_log_breakpoint);
647 register_action(editor, window, Editor::enable_breakpoint);
648 register_action(editor, window, Editor::disable_breakpoint);
649 register_action(editor, window, Editor::toggle_read_only);
650 if editor.read(cx).enable_wrap_selections_in_tag(cx) {
651 register_action(editor, window, Editor::wrap_selections_in_tag);
652 }
653 }
654
655 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
656 let position_map = layout.position_map.clone();
657 window.on_key_event({
658 let editor = self.editor.clone();
659 move |event: &ModifiersChangedEvent, phase, window, cx| {
660 if phase != DispatchPhase::Bubble {
661 return;
662 }
663 editor.update(cx, |editor, cx| {
664 let inlay_hint_settings = inlay_hint_settings(
665 editor.selections.newest_anchor().head(),
666 &editor.buffer.read(cx).snapshot(cx),
667 cx,
668 );
669
670 if let Some(inlay_modifiers) = inlay_hint_settings
671 .toggle_on_modifiers_press
672 .as_ref()
673 .filter(|modifiers| modifiers.modified())
674 {
675 editor.refresh_inlay_hints(
676 InlayHintRefreshReason::ModifiersChanged(
677 inlay_modifiers == &event.modifiers,
678 ),
679 cx,
680 );
681 }
682
683 if editor.hover_state.focused(window, cx) {
684 return;
685 }
686
687 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
688 })
689 }
690 });
691 }
692
693 fn mouse_left_down(
694 editor: &mut Editor,
695 event: &MouseDownEvent,
696 position_map: &PositionMap,
697 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
698 window: &mut Window,
699 cx: &mut Context<Editor>,
700 ) {
701 if window.default_prevented() {
702 return;
703 }
704
705 let text_hitbox = &position_map.text_hitbox;
706 let gutter_hitbox = &position_map.gutter_hitbox;
707 let point_for_position = position_map.point_for_position(event.position);
708 let mut click_count = event.click_count;
709 let mut modifiers = event.modifiers;
710
711 if let Some(hovered_hunk) =
712 position_map
713 .display_hunks
714 .iter()
715 .find_map(|(hunk, hunk_hitbox)| match hunk {
716 DisplayDiffHunk::Folded { .. } => None,
717 DisplayDiffHunk::Unfolded {
718 multi_buffer_range, ..
719 } => hunk_hitbox
720 .as_ref()
721 .is_some_and(|hitbox| hitbox.is_hovered(window))
722 .then(|| multi_buffer_range.clone()),
723 })
724 {
725 editor.toggle_single_diff_hunk(hovered_hunk, cx);
726 cx.notify();
727 return;
728 } else if gutter_hitbox.is_hovered(window) {
729 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
730 } else if !text_hitbox.is_hovered(window) {
731 return;
732 }
733
734 if EditorSettings::get_global(cx)
735 .drag_and_drop_selection
736 .enabled
737 && click_count == 1
738 && !modifiers.shift
739 {
740 let newest_anchor = editor.selections.newest_anchor();
741 let snapshot = editor.snapshot(window, cx);
742 let selection = newest_anchor.map(|anchor| anchor.to_display_point(&snapshot));
743 if point_for_position.intersects_selection(&selection) {
744 editor.selection_drag_state = SelectionDragState::ReadyToDrag {
745 selection: newest_anchor.clone(),
746 click_position: event.position,
747 mouse_down_time: Instant::now(),
748 };
749 cx.stop_propagation();
750 return;
751 }
752 }
753
754 let is_singleton = editor.buffer().read(cx).is_singleton();
755
756 if click_count == 2 && !is_singleton {
757 match EditorSettings::get_global(cx).double_click_in_multibuffer {
758 DoubleClickInMultibuffer::Select => {
759 // do nothing special on double click, all selection logic is below
760 }
761 DoubleClickInMultibuffer::Open => {
762 if modifiers.alt {
763 // if double click is made with alt, pretend it's a regular double click without opening and alt,
764 // and run the selection logic.
765 modifiers.alt = false;
766 } else {
767 let scroll_position_row = position_map.scroll_position.y;
768 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
769 / position_map.line_height)
770 as f64
771 + position_map.scroll_position.y)
772 as u32;
773 let multi_buffer_row = position_map
774 .snapshot
775 .display_point_to_point(
776 DisplayPoint::new(DisplayRow(display_row), 0),
777 Bias::Right,
778 )
779 .row;
780 let line_offset_from_top = display_row - scroll_position_row as u32;
781 // if double click is made without alt, open the corresponding excerp
782 editor.open_excerpts_common(
783 Some(JumpData::MultiBufferRow {
784 row: MultiBufferRow(multi_buffer_row),
785 line_offset_from_top,
786 }),
787 false,
788 window,
789 cx,
790 );
791 return;
792 }
793 }
794 }
795 }
796
797 if !is_singleton {
798 let display_row = (ScrollPixelOffset::from(
799 (event.position - gutter_hitbox.bounds.origin).y / position_map.line_height,
800 ) + position_map.scroll_position.y) as u32;
801 let multi_buffer_row = position_map
802 .snapshot
803 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
804 .row;
805 if line_numbers
806 .get(&MultiBufferRow(multi_buffer_row))
807 .is_some_and(|line_layout| {
808 line_layout.segments.iter().any(|segment| {
809 segment
810 .hitbox
811 .as_ref()
812 .is_some_and(|hitbox| hitbox.contains(&event.position))
813 })
814 })
815 {
816 let line_offset_from_top = display_row - position_map.scroll_position.y as u32;
817
818 editor.open_excerpts_common(
819 Some(JumpData::MultiBufferRow {
820 row: MultiBufferRow(multi_buffer_row),
821 line_offset_from_top,
822 }),
823 modifiers.alt,
824 window,
825 cx,
826 );
827 cx.stop_propagation();
828 return;
829 }
830 }
831
832 let position = point_for_position.previous_valid;
833 if let Some(mode) = Editor::columnar_selection_mode(&modifiers, cx) {
834 editor.select(
835 SelectPhase::BeginColumnar {
836 position,
837 reset: match mode {
838 ColumnarMode::FromMouse => true,
839 ColumnarMode::FromSelection => false,
840 },
841 mode,
842 goal_column: point_for_position.exact_unclipped.column(),
843 },
844 window,
845 cx,
846 );
847 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
848 {
849 editor.select(
850 SelectPhase::Extend {
851 position,
852 click_count,
853 },
854 window,
855 cx,
856 );
857 } else {
858 editor.select(
859 SelectPhase::Begin {
860 position,
861 add: Editor::is_alt_pressed(&modifiers, cx),
862 click_count,
863 },
864 window,
865 cx,
866 );
867 }
868 cx.stop_propagation();
869 }
870
871 fn mouse_right_down(
872 editor: &mut Editor,
873 event: &MouseDownEvent,
874 position_map: &PositionMap,
875 window: &mut Window,
876 cx: &mut Context<Editor>,
877 ) {
878 if position_map.gutter_hitbox.is_hovered(window) {
879 let gutter_right_padding = editor.gutter_dimensions.right_padding;
880 let hitbox = &position_map.gutter_hitbox;
881
882 if event.position.x <= hitbox.bounds.right() - gutter_right_padding {
883 let point_for_position = position_map.point_for_position(event.position);
884 editor.set_breakpoint_context_menu(
885 point_for_position.previous_valid.row(),
886 None,
887 event.position,
888 window,
889 cx,
890 );
891 }
892 return;
893 }
894
895 if !position_map.text_hitbox.is_hovered(window) {
896 return;
897 }
898
899 let point_for_position = position_map.point_for_position(event.position);
900 mouse_context_menu::deploy_context_menu(
901 editor,
902 Some(event.position),
903 point_for_position.previous_valid,
904 window,
905 cx,
906 );
907 cx.stop_propagation();
908 }
909
910 fn mouse_middle_down(
911 editor: &mut Editor,
912 event: &MouseDownEvent,
913 position_map: &PositionMap,
914 window: &mut Window,
915 cx: &mut Context<Editor>,
916 ) {
917 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
918 return;
919 }
920
921 let point_for_position = position_map.point_for_position(event.position);
922 let position = point_for_position.previous_valid;
923
924 editor.select(
925 SelectPhase::BeginColumnar {
926 position,
927 reset: true,
928 mode: ColumnarMode::FromMouse,
929 goal_column: point_for_position.exact_unclipped.column(),
930 },
931 window,
932 cx,
933 );
934 }
935
936 fn mouse_up(
937 editor: &mut Editor,
938 event: &MouseUpEvent,
939 position_map: &PositionMap,
940 window: &mut Window,
941 cx: &mut Context<Editor>,
942 ) {
943 // Handle diff review drag completion
944 if editor.diff_review_drag_state.is_some() {
945 editor.end_diff_review_drag(window, cx);
946 cx.stop_propagation();
947 return;
948 }
949
950 let text_hitbox = &position_map.text_hitbox;
951 let end_selection = editor.has_pending_selection();
952 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
953 let point_for_position = position_map.point_for_position(event.position);
954
955 match editor.selection_drag_state {
956 SelectionDragState::ReadyToDrag {
957 selection: _,
958 ref click_position,
959 mouse_down_time: _,
960 } => {
961 if event.position == *click_position {
962 editor.select(
963 SelectPhase::Begin {
964 position: point_for_position.previous_valid,
965 add: false,
966 click_count: 1, // ready to drag state only occurs on click count 1
967 },
968 window,
969 cx,
970 );
971 editor.selection_drag_state = SelectionDragState::None;
972 cx.stop_propagation();
973 return;
974 } else {
975 debug_panic!("drag state can never be in ready state after drag")
976 }
977 }
978 SelectionDragState::Dragging { ref selection, .. } => {
979 let snapshot = editor.snapshot(window, cx);
980 let selection_display = selection.map(|anchor| anchor.to_display_point(&snapshot));
981 if !point_for_position.intersects_selection(&selection_display)
982 && text_hitbox.is_hovered(window)
983 {
984 let is_cut = !(cfg!(target_os = "macos") && event.modifiers.alt
985 || cfg!(not(target_os = "macos")) && event.modifiers.control);
986 editor.move_selection_on_drop(
987 &selection.clone(),
988 point_for_position.previous_valid,
989 is_cut,
990 window,
991 cx,
992 );
993 }
994 editor.selection_drag_state = SelectionDragState::None;
995 cx.stop_propagation();
996 cx.notify();
997 return;
998 }
999 _ => {}
1000 }
1001
1002 if end_selection {
1003 editor.select(SelectPhase::End, window, cx);
1004 }
1005
1006 if end_selection && pending_nonempty_selections {
1007 cx.stop_propagation();
1008 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
1009 && event.button == MouseButton::Middle
1010 {
1011 #[allow(
1012 clippy::collapsible_if,
1013 clippy::needless_return,
1014 reason = "The cfg-block below makes this a false positive"
1015 )]
1016 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
1017 return;
1018 }
1019
1020 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
1021 if EditorSettings::get_global(cx).middle_click_paste {
1022 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
1023 let point_for_position = position_map.point_for_position(event.position);
1024 let position = point_for_position.previous_valid;
1025
1026 editor.select(
1027 SelectPhase::Begin {
1028 position,
1029 add: false,
1030 click_count: 1,
1031 },
1032 window,
1033 cx,
1034 );
1035 editor.insert(&text, window, cx);
1036 }
1037 cx.stop_propagation()
1038 }
1039 }
1040 }
1041
1042 fn click(
1043 editor: &mut Editor,
1044 event: &ClickEvent,
1045 position_map: &PositionMap,
1046 window: &mut Window,
1047 cx: &mut Context<Editor>,
1048 ) {
1049 let text_hitbox = &position_map.text_hitbox;
1050 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
1051
1052 let hovered_link_modifier = Editor::is_cmd_or_ctrl_pressed(&event.modifiers(), cx);
1053 let mouse_down_hovered_link_modifier = if let ClickEvent::Mouse(mouse_event) = event {
1054 Editor::is_cmd_or_ctrl_pressed(&mouse_event.down.modifiers, cx)
1055 } else {
1056 true
1057 };
1058
1059 if let Some(mouse_position) = event.mouse_position()
1060 && !pending_nonempty_selections
1061 && hovered_link_modifier
1062 && mouse_down_hovered_link_modifier
1063 && text_hitbox.is_hovered(window)
1064 && !matches!(
1065 editor.selection_drag_state,
1066 SelectionDragState::Dragging { .. }
1067 )
1068 {
1069 let point = position_map.point_for_position(mouse_position);
1070 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
1071 editor.selection_drag_state = SelectionDragState::None;
1072
1073 cx.stop_propagation();
1074 }
1075 }
1076
1077 fn pressure_click(
1078 editor: &mut Editor,
1079 event: &MousePressureEvent,
1080 position_map: &PositionMap,
1081 window: &mut Window,
1082 cx: &mut Context<Editor>,
1083 ) {
1084 let text_hitbox = &position_map.text_hitbox;
1085 let force_click_possible =
1086 matches!(editor.prev_pressure_stage, Some(PressureStage::Normal))
1087 && event.stage == PressureStage::Force;
1088
1089 editor.prev_pressure_stage = Some(event.stage);
1090
1091 if force_click_possible && text_hitbox.is_hovered(window) {
1092 let point = position_map.point_for_position(event.position);
1093 editor.handle_click_hovered_link(point, event.modifiers, window, cx);
1094 editor.selection_drag_state = SelectionDragState::None;
1095 cx.stop_propagation();
1096 }
1097 }
1098
1099 fn mouse_dragged(
1100 editor: &mut Editor,
1101 event: &MouseMoveEvent,
1102 position_map: &PositionMap,
1103 window: &mut Window,
1104 cx: &mut Context<Editor>,
1105 ) {
1106 if !editor.has_pending_selection()
1107 && matches!(editor.selection_drag_state, SelectionDragState::None)
1108 {
1109 return;
1110 }
1111
1112 let point_for_position = position_map.point_for_position(event.position);
1113 let text_hitbox = &position_map.text_hitbox;
1114
1115 let scroll_delta = {
1116 let text_bounds = text_hitbox.bounds;
1117 let mut scroll_delta = gpui::Point::<f32>::default();
1118 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
1119 let top = text_bounds.origin.y + vertical_margin;
1120 let bottom = text_bounds.bottom_left().y - vertical_margin;
1121 if event.position.y < top {
1122 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
1123 }
1124 if event.position.y > bottom {
1125 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
1126 }
1127
1128 // We need horizontal width of text
1129 let style = editor.style.clone().unwrap_or_default();
1130 let font_id = window.text_system().resolve_font(&style.text.font());
1131 let font_size = style.text.font_size.to_pixels(window.rem_size());
1132 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
1133
1134 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
1135
1136 let scroll_space: Pixels = scroll_margin_x * em_width;
1137
1138 let left = text_bounds.origin.x + scroll_space;
1139 let right = text_bounds.top_right().x - scroll_space;
1140
1141 if event.position.x < left {
1142 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
1143 }
1144 if event.position.x > right {
1145 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
1146 }
1147 scroll_delta
1148 };
1149
1150 if !editor.has_pending_selection() {
1151 let drop_anchor = position_map
1152 .snapshot
1153 .display_point_to_anchor(point_for_position.previous_valid, Bias::Left);
1154 match editor.selection_drag_state {
1155 SelectionDragState::Dragging {
1156 ref mut drop_cursor,
1157 ref mut hide_drop_cursor,
1158 ..
1159 } => {
1160 drop_cursor.start = drop_anchor;
1161 drop_cursor.end = drop_anchor;
1162 *hide_drop_cursor = !text_hitbox.is_hovered(window);
1163 editor.apply_scroll_delta(scroll_delta, window, cx);
1164 cx.notify();
1165 }
1166 SelectionDragState::ReadyToDrag {
1167 ref selection,
1168 ref click_position,
1169 ref mouse_down_time,
1170 } => {
1171 let drag_and_drop_delay = Duration::from_millis(
1172 EditorSettings::get_global(cx)
1173 .drag_and_drop_selection
1174 .delay
1175 .0,
1176 );
1177 if mouse_down_time.elapsed() >= drag_and_drop_delay {
1178 let drop_cursor = Selection {
1179 id: post_inc(&mut editor.selections.next_selection_id()),
1180 start: drop_anchor,
1181 end: drop_anchor,
1182 reversed: false,
1183 goal: SelectionGoal::None,
1184 };
1185 editor.selection_drag_state = SelectionDragState::Dragging {
1186 selection: selection.clone(),
1187 drop_cursor,
1188 hide_drop_cursor: false,
1189 };
1190 editor.apply_scroll_delta(scroll_delta, window, cx);
1191 cx.notify();
1192 } else {
1193 let click_point = position_map.point_for_position(*click_position);
1194 editor.selection_drag_state = SelectionDragState::None;
1195 editor.select(
1196 SelectPhase::Begin {
1197 position: click_point.previous_valid,
1198 add: false,
1199 click_count: 1,
1200 },
1201 window,
1202 cx,
1203 );
1204 editor.select(
1205 SelectPhase::Update {
1206 position: point_for_position.previous_valid,
1207 goal_column: point_for_position.exact_unclipped.column(),
1208 scroll_delta,
1209 },
1210 window,
1211 cx,
1212 );
1213 }
1214 }
1215 _ => {}
1216 }
1217 } else {
1218 editor.select(
1219 SelectPhase::Update {
1220 position: point_for_position.previous_valid,
1221 goal_column: point_for_position.exact_unclipped.column(),
1222 scroll_delta,
1223 },
1224 window,
1225 cx,
1226 );
1227 }
1228 }
1229
1230 pub(crate) fn mouse_moved(
1231 editor: &mut Editor,
1232 event: &MouseMoveEvent,
1233 position_map: &PositionMap,
1234 split_side: Option<SplitSide>,
1235 window: &mut Window,
1236 cx: &mut Context<Editor>,
1237 ) {
1238 let text_hitbox = &position_map.text_hitbox;
1239 let gutter_hitbox = &position_map.gutter_hitbox;
1240 let modifiers = event.modifiers;
1241 let text_hovered = text_hitbox.is_hovered(window);
1242 let gutter_hovered = gutter_hitbox.bounds.contains(&event.position);
1243 editor.set_gutter_hovered(gutter_hovered, cx);
1244 editor.show_mouse_cursor(cx);
1245
1246 let point_for_position = position_map.point_for_position(event.position);
1247 let valid_point = point_for_position.previous_valid;
1248
1249 // Update diff review drag state if we're dragging
1250 if editor.diff_review_drag_state.is_some() {
1251 editor.update_diff_review_drag(valid_point.row(), window, cx);
1252 }
1253
1254 let hovered_diff_control = position_map
1255 .diff_hunk_control_bounds
1256 .iter()
1257 .find(|(_, bounds)| bounds.contains(&event.position))
1258 .map(|(row, _)| *row);
1259
1260 let hovered_diff_hunk_row = if let Some(control_row) = hovered_diff_control {
1261 Some(control_row)
1262 } else if text_hovered {
1263 let current_row = valid_point.row();
1264 position_map.display_hunks.iter().find_map(|(hunk, _)| {
1265 if let DisplayDiffHunk::Unfolded {
1266 display_row_range, ..
1267 } = hunk
1268 {
1269 if display_row_range.contains(¤t_row) {
1270 Some(display_row_range.start)
1271 } else {
1272 None
1273 }
1274 } else {
1275 None
1276 }
1277 })
1278 } else {
1279 None
1280 };
1281
1282 if hovered_diff_hunk_row != editor.hovered_diff_hunk_row {
1283 editor.hovered_diff_hunk_row = hovered_diff_hunk_row;
1284 cx.notify();
1285 }
1286
1287 if let Some((bounds, buffer_id, blame_entry)) = &position_map.inline_blame_bounds {
1288 let mouse_over_inline_blame = bounds.contains(&event.position);
1289 let mouse_over_popover = editor
1290 .inline_blame_popover
1291 .as_ref()
1292 .and_then(|state| state.popover_bounds)
1293 .is_some_and(|bounds| bounds.contains(&event.position));
1294 let keyboard_grace = editor
1295 .inline_blame_popover
1296 .as_ref()
1297 .is_some_and(|state| state.keyboard_grace);
1298
1299 if mouse_over_inline_blame || mouse_over_popover {
1300 editor.show_blame_popover(*buffer_id, blame_entry, event.position, false, cx);
1301 } else if !keyboard_grace {
1302 editor.hide_blame_popover(false, cx);
1303 }
1304 } else {
1305 let keyboard_grace = editor
1306 .inline_blame_popover
1307 .as_ref()
1308 .is_some_and(|state| state.keyboard_grace);
1309 if !keyboard_grace {
1310 editor.hide_blame_popover(false, cx);
1311 }
1312 }
1313
1314 // Handle diff review indicator when gutter is hovered in diff mode with AI enabled
1315 let show_diff_review = editor.show_diff_review_button()
1316 && cx.has_flag::<DiffReviewFeatureFlag>()
1317 && !DisableAiSettings::is_ai_disabled_for_buffer(
1318 editor.buffer.read(cx).as_singleton().as_ref(),
1319 cx,
1320 );
1321
1322 let diff_review_indicator = if gutter_hovered && show_diff_review {
1323 let is_visible = editor
1324 .gutter_diff_review_indicator
1325 .0
1326 .is_some_and(|indicator| indicator.is_active);
1327
1328 if !is_visible {
1329 editor
1330 .gutter_diff_review_indicator
1331 .1
1332 .get_or_insert_with(|| {
1333 cx.spawn(async move |this, cx| {
1334 cx.background_executor()
1335 .timer(Duration::from_millis(200))
1336 .await;
1337
1338 this.update(cx, |this, cx| {
1339 if let Some(indicator) =
1340 this.gutter_diff_review_indicator.0.as_mut()
1341 {
1342 indicator.is_active = true;
1343 cx.notify();
1344 }
1345 })
1346 .ok();
1347 })
1348 });
1349 }
1350
1351 let anchor = position_map
1352 .snapshot
1353 .display_point_to_anchor(valid_point, Bias::Left);
1354 Some(PhantomDiffReviewIndicator {
1355 start: anchor,
1356 end: anchor,
1357 is_active: is_visible,
1358 })
1359 } else {
1360 editor.gutter_diff_review_indicator.1 = None;
1361 None
1362 };
1363
1364 if diff_review_indicator != editor.gutter_diff_review_indicator.0 {
1365 editor.gutter_diff_review_indicator.0 = diff_review_indicator;
1366 cx.notify();
1367 }
1368
1369 // Don't show breakpoint indicator when diff review indicator is active on this row
1370 let is_on_diff_review_button_row = diff_review_indicator.is_some_and(|indicator| {
1371 let start_row = indicator
1372 .start
1373 .to_display_point(&position_map.snapshot.display_snapshot)
1374 .row();
1375 indicator.is_active && start_row == valid_point.row()
1376 });
1377
1378 let breakpoint_indicator = if gutter_hovered
1379 && !is_on_diff_review_button_row
1380 && split_side != Some(SplitSide::Left)
1381 {
1382 let buffer_anchor = position_map
1383 .snapshot
1384 .display_point_to_anchor(valid_point, Bias::Left);
1385
1386 if let Some((buffer_snapshot, file)) = position_map
1387 .snapshot
1388 .buffer_snapshot()
1389 .buffer_for_excerpt(buffer_anchor.excerpt_id)
1390 .and_then(|buffer| buffer.file().map(|file| (buffer, file)))
1391 {
1392 let as_point = text::ToPoint::to_point(&buffer_anchor.text_anchor, buffer_snapshot);
1393
1394 let is_visible = editor
1395 .gutter_breakpoint_indicator
1396 .0
1397 .is_some_and(|indicator| indicator.is_active);
1398
1399 let has_existing_breakpoint =
1400 editor.breakpoint_store.as_ref().is_some_and(|store| {
1401 let Some(project) = &editor.project else {
1402 return false;
1403 };
1404 let Some(abs_path) = project.read(cx).absolute_path(
1405 &ProjectPath {
1406 path: file.path().clone(),
1407 worktree_id: file.worktree_id(cx),
1408 },
1409 cx,
1410 ) else {
1411 return false;
1412 };
1413 store
1414 .read(cx)
1415 .breakpoint_at_row(&abs_path, as_point.row, cx)
1416 .is_some()
1417 });
1418
1419 if !is_visible {
1420 editor.gutter_breakpoint_indicator.1.get_or_insert_with(|| {
1421 cx.spawn(async move |this, cx| {
1422 cx.background_executor()
1423 .timer(Duration::from_millis(200))
1424 .await;
1425
1426 this.update(cx, |this, cx| {
1427 if let Some(indicator) = this.gutter_breakpoint_indicator.0.as_mut()
1428 {
1429 indicator.is_active = true;
1430 cx.notify();
1431 }
1432 })
1433 .ok();
1434 })
1435 });
1436 }
1437
1438 Some(PhantomBreakpointIndicator {
1439 display_row: valid_point.row(),
1440 is_active: is_visible,
1441 collides_with_existing_breakpoint: has_existing_breakpoint,
1442 })
1443 } else {
1444 editor.gutter_breakpoint_indicator.1 = None;
1445 None
1446 }
1447 } else {
1448 editor.gutter_breakpoint_indicator.1 = None;
1449 None
1450 };
1451
1452 if &breakpoint_indicator != &editor.gutter_breakpoint_indicator.0 {
1453 editor.gutter_breakpoint_indicator.0 = breakpoint_indicator;
1454 cx.notify();
1455 }
1456
1457 // Don't trigger hover popover if mouse is hovering over context menu
1458 if text_hovered {
1459 editor.update_hovered_link(
1460 point_for_position,
1461 &position_map.snapshot,
1462 modifiers,
1463 window,
1464 cx,
1465 );
1466
1467 if let Some(point) = point_for_position.as_valid() {
1468 let anchor = position_map
1469 .snapshot
1470 .buffer_snapshot()
1471 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
1472 hover_at(editor, Some(anchor), window, cx);
1473 Self::update_visible_cursor(editor, point, position_map, window, cx);
1474 } else {
1475 editor.update_inlay_link_and_hover_points(
1476 &position_map.snapshot,
1477 point_for_position,
1478 modifiers.secondary(),
1479 modifiers.shift,
1480 window,
1481 cx,
1482 );
1483 }
1484 } else {
1485 editor.hide_hovered_link(cx);
1486 hover_at(editor, None, window, cx);
1487 }
1488 }
1489
1490 fn update_visible_cursor(
1491 editor: &mut Editor,
1492 point: DisplayPoint,
1493 position_map: &PositionMap,
1494 window: &mut Window,
1495 cx: &mut Context<Editor>,
1496 ) {
1497 let snapshot = &position_map.snapshot;
1498 let Some(hub) = editor.collaboration_hub() else {
1499 return;
1500 };
1501 let start = snapshot.display_snapshot.clip_point(
1502 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
1503 Bias::Left,
1504 );
1505 let end = snapshot.display_snapshot.clip_point(
1506 DisplayPoint::new(
1507 point.row(),
1508 (point.column() + 1).min(snapshot.line_len(point.row())),
1509 ),
1510 Bias::Right,
1511 );
1512
1513 let range = snapshot
1514 .buffer_snapshot()
1515 .anchor_before(start.to_point(&snapshot.display_snapshot))
1516 ..snapshot
1517 .buffer_snapshot()
1518 .anchor_after(end.to_point(&snapshot.display_snapshot));
1519
1520 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
1521 return;
1522 };
1523 let key = crate::HoveredCursor {
1524 replica_id: selection.replica_id,
1525 selection_id: selection.selection.id,
1526 };
1527 editor.hovered_cursors.insert(
1528 key.clone(),
1529 cx.spawn_in(window, async move |editor, cx| {
1530 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
1531 editor
1532 .update(cx, |editor, cx| {
1533 editor.hovered_cursors.remove(&key);
1534 cx.notify();
1535 })
1536 .ok();
1537 }),
1538 );
1539 cx.notify()
1540 }
1541
1542 fn layout_selections(
1543 &self,
1544 start_anchor: Anchor,
1545 end_anchor: Anchor,
1546 local_selections: &[Selection<Point>],
1547 snapshot: &EditorSnapshot,
1548 start_row: DisplayRow,
1549 end_row: DisplayRow,
1550 window: &mut Window,
1551 cx: &mut App,
1552 ) -> (
1553 Vec<(PlayerColor, Vec<SelectionLayout>)>,
1554 BTreeMap<DisplayRow, LineHighlightSpec>,
1555 Option<DisplayPoint>,
1556 ) {
1557 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1558 let mut active_rows = BTreeMap::new();
1559 let mut newest_selection_head = None;
1560
1561 let Some(editor_with_selections) = self.editor_with_selections(cx) else {
1562 return (selections, active_rows, newest_selection_head);
1563 };
1564
1565 editor_with_selections.update(cx, |editor, cx| {
1566 if editor.show_local_selections {
1567 let mut layouts = Vec::new();
1568 let newest = editor.selections.newest(&editor.display_snapshot(cx));
1569 for selection in local_selections.iter().cloned() {
1570 let is_empty = selection.start == selection.end;
1571 let is_newest = selection == newest;
1572
1573 let layout = SelectionLayout::new(
1574 selection,
1575 editor.selections.line_mode(),
1576 editor.cursor_offset_on_selection,
1577 editor.cursor_shape,
1578 &snapshot.display_snapshot,
1579 is_newest,
1580 editor.leader_id.is_none(),
1581 None,
1582 );
1583 if is_newest {
1584 newest_selection_head = Some(layout.head);
1585 }
1586
1587 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1588 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1589 {
1590 let contains_non_empty_selection = active_rows
1591 .entry(DisplayRow(row))
1592 .or_insert_with(LineHighlightSpec::default);
1593 contains_non_empty_selection.selection |= !is_empty;
1594 }
1595 layouts.push(layout);
1596 }
1597
1598 let mut player = editor.current_user_player_color(cx);
1599 if !editor.is_focused(window) {
1600 const UNFOCUS_EDITOR_SELECTION_OPACITY: f32 = 0.5;
1601 player.selection = player.selection.opacity(UNFOCUS_EDITOR_SELECTION_OPACITY);
1602 }
1603 selections.push((player, layouts));
1604
1605 if let SelectionDragState::Dragging {
1606 ref selection,
1607 ref drop_cursor,
1608 ref hide_drop_cursor,
1609 } = editor.selection_drag_state
1610 && !hide_drop_cursor
1611 && (drop_cursor
1612 .start
1613 .cmp(&selection.start, &snapshot.buffer_snapshot())
1614 .eq(&Ordering::Less)
1615 || drop_cursor
1616 .end
1617 .cmp(&selection.end, &snapshot.buffer_snapshot())
1618 .eq(&Ordering::Greater))
1619 {
1620 let drag_cursor_layout = SelectionLayout::new(
1621 drop_cursor.clone(),
1622 false,
1623 editor.cursor_offset_on_selection,
1624 CursorShape::Bar,
1625 &snapshot.display_snapshot,
1626 false,
1627 false,
1628 None,
1629 );
1630 let absent_color = cx.theme().players().absent();
1631 selections.push((absent_color, vec![drag_cursor_layout]));
1632 }
1633 }
1634
1635 if let Some(collaboration_hub) = &editor.collaboration_hub {
1636 // When following someone, render the local selections in their color.
1637 if let Some(leader_id) = editor.leader_id {
1638 match leader_id {
1639 CollaboratorId::PeerId(peer_id) => {
1640 if let Some(collaborator) =
1641 collaboration_hub.collaborators(cx).get(&peer_id)
1642 && let Some(participant_index) = collaboration_hub
1643 .user_participant_indices(cx)
1644 .get(&collaborator.user_id)
1645 && let Some((local_selection_style, _)) = selections.first_mut()
1646 {
1647 *local_selection_style = cx
1648 .theme()
1649 .players()
1650 .color_for_participant(participant_index.0);
1651 }
1652 }
1653 CollaboratorId::Agent => {
1654 if let Some((local_selection_style, _)) = selections.first_mut() {
1655 *local_selection_style = cx.theme().players().agent();
1656 }
1657 }
1658 }
1659 }
1660
1661 let mut remote_selections = HashMap::default();
1662 for selection in snapshot.remote_selections_in_range(
1663 &(start_anchor..end_anchor),
1664 collaboration_hub.as_ref(),
1665 cx,
1666 ) {
1667 // Don't re-render the leader's selections, since the local selections
1668 // match theirs.
1669 if Some(selection.collaborator_id) == editor.leader_id {
1670 continue;
1671 }
1672 let key = HoveredCursor {
1673 replica_id: selection.replica_id,
1674 selection_id: selection.selection.id,
1675 };
1676
1677 let is_shown =
1678 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1679
1680 remote_selections
1681 .entry(selection.replica_id)
1682 .or_insert((selection.color, Vec::new()))
1683 .1
1684 .push(SelectionLayout::new(
1685 selection.selection,
1686 selection.line_mode,
1687 editor.cursor_offset_on_selection,
1688 selection.cursor_shape,
1689 &snapshot.display_snapshot,
1690 false,
1691 false,
1692 if is_shown { selection.user_name } else { None },
1693 ));
1694 }
1695
1696 selections.extend(remote_selections.into_values());
1697 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1698 let cursor_offset_on_selection = editor.cursor_offset_on_selection;
1699
1700 let layouts = snapshot
1701 .buffer_snapshot()
1702 .selections_in_range(&(start_anchor..end_anchor), true)
1703 .map(move |(_, line_mode, cursor_shape, selection)| {
1704 SelectionLayout::new(
1705 selection,
1706 line_mode,
1707 cursor_offset_on_selection,
1708 cursor_shape,
1709 &snapshot.display_snapshot,
1710 false,
1711 false,
1712 None,
1713 )
1714 })
1715 .collect::<Vec<_>>();
1716 let player = editor.current_user_player_color(cx);
1717 selections.push((player, layouts));
1718 }
1719 });
1720
1721 #[cfg(debug_assertions)]
1722 Self::layout_debug_ranges(
1723 &mut selections,
1724 start_anchor..end_anchor,
1725 &snapshot.display_snapshot,
1726 cx,
1727 );
1728
1729 (selections, active_rows, newest_selection_head)
1730 }
1731
1732 fn collect_cursors(
1733 &self,
1734 snapshot: &EditorSnapshot,
1735 cx: &mut App,
1736 ) -> Vec<(DisplayPoint, Hsla)> {
1737 let editor = self.editor.read(cx);
1738 let mut cursors = Vec::new();
1739 let mut skip_local = false;
1740 let mut add_cursor = |anchor: Anchor, color| {
1741 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1742 };
1743 // Remote cursors
1744 if let Some(collaboration_hub) = &editor.collaboration_hub {
1745 for remote_selection in snapshot.remote_selections_in_range(
1746 &(Anchor::min()..Anchor::max()),
1747 collaboration_hub.deref(),
1748 cx,
1749 ) {
1750 add_cursor(
1751 remote_selection.selection.head(),
1752 remote_selection.color.cursor,
1753 );
1754 if Some(remote_selection.collaborator_id) == editor.leader_id {
1755 skip_local = true;
1756 }
1757 }
1758 }
1759 // Local cursors
1760 if !skip_local {
1761 let color = cx.theme().players().local().cursor;
1762 editor
1763 .selections
1764 .disjoint_anchors()
1765 .iter()
1766 .for_each(|selection| {
1767 add_cursor(selection.head(), color);
1768 });
1769 if let Some(ref selection) = editor.selections.pending_anchor() {
1770 add_cursor(selection.head(), color);
1771 }
1772 }
1773 cursors
1774 }
1775
1776 fn layout_visible_cursors(
1777 &self,
1778 snapshot: &EditorSnapshot,
1779 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1780 row_block_types: &HashMap<DisplayRow, bool>,
1781 visible_display_row_range: Range<DisplayRow>,
1782 line_layouts: &[LineWithInvisibles],
1783 text_hitbox: &Hitbox,
1784 content_origin: gpui::Point<Pixels>,
1785 scroll_position: gpui::Point<ScrollOffset>,
1786 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
1787 line_height: Pixels,
1788 em_width: Pixels,
1789 em_advance: Pixels,
1790 autoscroll_containing_element: bool,
1791 redacted_ranges: &[Range<DisplayPoint>],
1792 window: &mut Window,
1793 cx: &mut App,
1794 ) -> Vec<CursorLayout> {
1795 let mut autoscroll_bounds = None;
1796 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1797 let mut cursors = Vec::new();
1798
1799 let show_local_cursors = editor.show_local_cursors(window, cx);
1800
1801 for (player_color, selections) in selections {
1802 for selection in selections {
1803 let cursor_position = selection.head;
1804
1805 let in_range = visible_display_row_range.contains(&cursor_position.row());
1806 if (selection.is_local && !show_local_cursors)
1807 || !in_range
1808 || row_block_types.get(&cursor_position.row()) == Some(&true)
1809 {
1810 continue;
1811 }
1812
1813 let cursor_row_layout = &line_layouts
1814 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1815 let cursor_column = cursor_position.column() as usize;
1816
1817 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column)
1818 + cursor_row_layout
1819 .alignment_offset(self.style.text.text_align, text_hitbox.size.width);
1820 let cursor_next_x = cursor_row_layout.x_for_index(cursor_column + 1)
1821 + cursor_row_layout
1822 .alignment_offset(self.style.text.text_align, text_hitbox.size.width);
1823 let mut cell_width = cursor_next_x - cursor_character_x;
1824 if cell_width == Pixels::ZERO {
1825 cell_width = em_advance;
1826 }
1827
1828 let mut block_width = cell_width;
1829 let mut block_text = None;
1830
1831 let is_cursor_in_redacted_range = redacted_ranges
1832 .iter()
1833 .any(|range| range.start <= cursor_position && cursor_position < range.end);
1834
1835 if selection.cursor_shape == CursorShape::Block && !is_cursor_in_redacted_range
1836 {
1837 if let Some(text) = snapshot.grapheme_at(cursor_position).or_else(|| {
1838 if snapshot.is_empty() {
1839 snapshot.placeholder_text().and_then(|s| {
1840 s.graphemes(true).next().map(|s| s.to_string().into())
1841 })
1842 } else {
1843 None
1844 }
1845 }) {
1846 let is_ascii_whitespace_only =
1847 text.as_ref().chars().all(|c| c.is_ascii_whitespace());
1848 let len = text.len();
1849
1850 let mut font = cursor_row_layout
1851 .font_id_for_index(cursor_column)
1852 .and_then(|cursor_font_id| {
1853 window.text_system().get_font_for_id(cursor_font_id)
1854 })
1855 .unwrap_or(self.style.text.font());
1856 font.features = self.style.text.font_features.clone();
1857
1858 // Invert the text color for the block cursor. Ensure that the text
1859 // color is opaque enough to be visible against the background color.
1860 //
1861 // 0.75 is an arbitrary threshold to determine if the background color is
1862 // opaque enough to use as a text color.
1863 //
1864 // TODO: In the future we should ensure themes have a `text_inverse` color.
1865 let color = if cx.theme().colors().editor_background.a < 0.75 {
1866 match cx.theme().appearance {
1867 Appearance::Dark => Hsla::black(),
1868 Appearance::Light => Hsla::white(),
1869 }
1870 } else {
1871 cx.theme().colors().editor_background
1872 };
1873
1874 let shaped = window.text_system().shape_line(
1875 text,
1876 cursor_row_layout.font_size,
1877 &[TextRun {
1878 len,
1879 font,
1880 color,
1881 ..Default::default()
1882 }],
1883 None,
1884 );
1885 if !is_ascii_whitespace_only {
1886 block_width = block_width.max(shaped.width);
1887 }
1888 block_text = Some(shaped);
1889 }
1890 }
1891
1892 let x = cursor_character_x - scroll_pixel_position.x.into();
1893 let y = ((cursor_position.row().as_f64() - scroll_position.y)
1894 * ScrollPixelOffset::from(line_height))
1895 .into();
1896 if selection.is_newest {
1897 editor.pixel_position_of_newest_cursor = Some(point(
1898 text_hitbox.origin.x + x + block_width / 2.,
1899 text_hitbox.origin.y + y + line_height / 2.,
1900 ));
1901
1902 if autoscroll_containing_element {
1903 let top = text_hitbox.origin.y
1904 + ((cursor_position.row().as_f64() - scroll_position.y - 3.)
1905 .max(0.)
1906 * ScrollPixelOffset::from(line_height))
1907 .into();
1908 let left = text_hitbox.origin.x
1909 + ((cursor_position.column() as ScrollOffset
1910 - scroll_position.x
1911 - 3.)
1912 .max(0.)
1913 * ScrollPixelOffset::from(em_width))
1914 .into();
1915
1916 let bottom = text_hitbox.origin.y
1917 + ((cursor_position.row().as_f64() - scroll_position.y + 4.)
1918 * ScrollPixelOffset::from(line_height))
1919 .into();
1920 let right = text_hitbox.origin.x
1921 + ((cursor_position.column() as ScrollOffset - scroll_position.x
1922 + 4.)
1923 * ScrollPixelOffset::from(em_width))
1924 .into();
1925
1926 autoscroll_bounds =
1927 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1928 }
1929 }
1930
1931 let mut cursor = CursorLayout {
1932 color: player_color.cursor,
1933 block_width,
1934 origin: point(x, y),
1935 line_height,
1936 shape: selection.cursor_shape,
1937 block_text,
1938 cursor_name: None,
1939 };
1940 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1941 string: name,
1942 color: self.style.background,
1943 is_top_row: cursor_position.row().0 == 0,
1944 });
1945 cursor.layout(content_origin, cursor_name, window, cx);
1946 cursors.push(cursor);
1947 }
1948 }
1949
1950 cursors
1951 });
1952
1953 if let Some(bounds) = autoscroll_bounds {
1954 window.request_autoscroll(bounds);
1955 }
1956
1957 cursor_layouts
1958 }
1959
1960 fn layout_scrollbars(
1961 &self,
1962 snapshot: &EditorSnapshot,
1963 scrollbar_layout_information: &ScrollbarLayoutInformation,
1964 content_offset: gpui::Point<Pixels>,
1965 scroll_position: gpui::Point<ScrollOffset>,
1966 non_visible_cursors: bool,
1967 right_margin: Pixels,
1968 editor_width: Pixels,
1969 window: &mut Window,
1970 cx: &mut App,
1971 ) -> Option<EditorScrollbars> {
1972 let show_scrollbars = self.editor.read(cx).show_scrollbars;
1973 if (!show_scrollbars.horizontal && !show_scrollbars.vertical)
1974 || self.style.scrollbar_width.is_zero()
1975 {
1976 return None;
1977 }
1978
1979 // If a drag took place after we started dragging the scrollbar,
1980 // cancel the scrollbar drag.
1981 if cx.has_active_drag() {
1982 self.editor.update(cx, |editor, cx| {
1983 editor.scroll_manager.reset_scrollbar_state(cx)
1984 });
1985 }
1986
1987 let editor_settings = EditorSettings::get_global(cx);
1988 let scrollbar_settings = editor_settings.scrollbar;
1989 let show_scrollbars = match scrollbar_settings.show {
1990 ShowScrollbar::Auto => {
1991 let editor = self.editor.read(cx);
1992 let is_singleton = editor.buffer_kind(cx) == ItemBufferKind::Singleton;
1993 // Git
1994 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot().has_diff_hunks())
1995 ||
1996 // Buffer Search Results
1997 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights(HighlightKey::BufferSearchHighlights))
1998 ||
1999 // Selected Text Occurrences
2000 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights(HighlightKey::SelectedTextHighlight))
2001 ||
2002 // Selected Symbol Occurrences
2003 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights(HighlightKey::DocumentHighlightRead) || editor.has_background_highlights(HighlightKey::DocumentHighlightWrite)))
2004 ||
2005 // Diagnostics
2006 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot().has_diagnostics())
2007 ||
2008 // Cursors out of sight
2009 non_visible_cursors
2010 ||
2011 // Scrollmanager
2012 editor.scroll_manager.scrollbars_visible()
2013 }
2014 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
2015 ShowScrollbar::Always => true,
2016 ShowScrollbar::Never => return None,
2017 };
2018
2019 // The horizontal scrollbar is usually slightly offset to align nicely with
2020 // indent guides. However, this offset is not needed if indent guides are
2021 // disabled for the current editor.
2022 let content_offset = self
2023 .editor
2024 .read(cx)
2025 .show_indent_guides
2026 .is_none_or(|should_show| should_show)
2027 .then_some(content_offset)
2028 .unwrap_or_default();
2029
2030 Some(EditorScrollbars::from_scrollbar_axes(
2031 ScrollbarAxes {
2032 horizontal: scrollbar_settings.axes.horizontal
2033 && self.editor.read(cx).show_scrollbars.horizontal,
2034 vertical: scrollbar_settings.axes.vertical
2035 && self.editor.read(cx).show_scrollbars.vertical,
2036 },
2037 scrollbar_layout_information,
2038 content_offset,
2039 scroll_position,
2040 self.style.scrollbar_width,
2041 right_margin,
2042 editor_width,
2043 show_scrollbars,
2044 self.editor.read(cx).scroll_manager.active_scrollbar_state(),
2045 window,
2046 ))
2047 }
2048
2049 fn layout_minimap(
2050 &self,
2051 snapshot: &EditorSnapshot,
2052 minimap_width: Pixels,
2053 scroll_position: gpui::Point<f64>,
2054 scrollbar_layout_information: &ScrollbarLayoutInformation,
2055 scrollbar_layout: Option<&EditorScrollbars>,
2056 window: &mut Window,
2057 cx: &mut App,
2058 ) -> Option<MinimapLayout> {
2059 let minimap_editor = self.editor.read(cx).minimap().cloned()?;
2060
2061 let minimap_settings = EditorSettings::get_global(cx).minimap;
2062
2063 if minimap_settings.on_active_editor() {
2064 let active_editor = self.editor.read(cx).workspace().and_then(|ws| {
2065 ws.read(cx)
2066 .active_pane()
2067 .read(cx)
2068 .active_item()
2069 .and_then(|i| i.act_as::<Editor>(cx))
2070 });
2071 if active_editor.is_some_and(|e| e != self.editor) {
2072 return None;
2073 }
2074 }
2075
2076 if !snapshot.mode.is_full()
2077 || minimap_width.is_zero()
2078 || matches!(
2079 minimap_settings.show,
2080 ShowMinimap::Auto if scrollbar_layout.is_none_or(|layout| !layout.visible)
2081 )
2082 {
2083 return None;
2084 }
2085
2086 const MINIMAP_AXIS: ScrollbarAxis = ScrollbarAxis::Vertical;
2087
2088 let ScrollbarLayoutInformation {
2089 editor_bounds,
2090 scroll_range,
2091 glyph_grid_cell,
2092 } = scrollbar_layout_information;
2093
2094 let line_height = glyph_grid_cell.height;
2095 let scroll_position = scroll_position.along(MINIMAP_AXIS);
2096
2097 let top_right_anchor = scrollbar_layout
2098 .and_then(|layout| layout.vertical.as_ref())
2099 .map(|vertical_scrollbar| vertical_scrollbar.hitbox.origin)
2100 .unwrap_or_else(|| editor_bounds.top_right());
2101
2102 let thumb_state = self
2103 .editor
2104 .read_with(cx, |editor, _| editor.scroll_manager.minimap_thumb_state());
2105
2106 let show_thumb = match minimap_settings.thumb {
2107 MinimapThumb::Always => true,
2108 MinimapThumb::Hover => thumb_state.is_some(),
2109 };
2110
2111 let minimap_bounds = Bounds::from_corner_and_size(
2112 Corner::TopRight,
2113 top_right_anchor,
2114 size(minimap_width, editor_bounds.size.height),
2115 );
2116 let minimap_line_height = self.get_minimap_line_height(
2117 minimap_editor
2118 .read(cx)
2119 .text_style_refinement
2120 .as_ref()
2121 .and_then(|refinement| refinement.font_size)
2122 .unwrap_or(MINIMAP_FONT_SIZE),
2123 window,
2124 cx,
2125 );
2126 let minimap_height = minimap_bounds.size.height;
2127
2128 let visible_editor_lines = (editor_bounds.size.height / line_height) as f64;
2129 let total_editor_lines = (scroll_range.height / line_height) as f64;
2130 let minimap_lines = (minimap_height / minimap_line_height) as f64;
2131
2132 let minimap_scroll_top = MinimapLayout::calculate_minimap_top_offset(
2133 total_editor_lines,
2134 visible_editor_lines,
2135 minimap_lines,
2136 scroll_position,
2137 );
2138
2139 let layout = ScrollbarLayout::for_minimap(
2140 window.insert_hitbox(minimap_bounds, HitboxBehavior::Normal),
2141 visible_editor_lines,
2142 total_editor_lines,
2143 minimap_line_height,
2144 scroll_position,
2145 minimap_scroll_top,
2146 show_thumb,
2147 )
2148 .with_thumb_state(thumb_state);
2149
2150 minimap_editor.update(cx, |editor, cx| {
2151 editor.set_scroll_position(point(0., minimap_scroll_top), window, cx)
2152 });
2153
2154 // Required for the drop shadow to be visible
2155 const PADDING_OFFSET: Pixels = px(4.);
2156
2157 let mut minimap = div()
2158 .size_full()
2159 .shadow_xs()
2160 .px(PADDING_OFFSET)
2161 .child(minimap_editor)
2162 .into_any_element();
2163
2164 let extended_bounds = minimap_bounds.extend(Edges {
2165 right: PADDING_OFFSET,
2166 left: PADDING_OFFSET,
2167 ..Default::default()
2168 });
2169 minimap.layout_as_root(extended_bounds.size.into(), window, cx);
2170 window.with_absolute_element_offset(extended_bounds.origin, |window| {
2171 minimap.prepaint(window, cx)
2172 });
2173
2174 Some(MinimapLayout {
2175 minimap,
2176 thumb_layout: layout,
2177 thumb_border_style: minimap_settings.thumb_border,
2178 minimap_line_height,
2179 minimap_scroll_top,
2180 max_scroll_top: total_editor_lines,
2181 })
2182 }
2183
2184 fn get_minimap_line_height(
2185 &self,
2186 font_size: AbsoluteLength,
2187 window: &mut Window,
2188 cx: &mut App,
2189 ) -> Pixels {
2190 let rem_size = self.rem_size(cx).unwrap_or(window.rem_size());
2191 let mut text_style = self.style.text.clone();
2192 text_style.font_size = font_size;
2193 text_style.line_height_in_pixels(rem_size)
2194 }
2195
2196 fn get_minimap_width(
2197 &self,
2198 minimap_settings: &Minimap,
2199 scrollbars_shown: bool,
2200 text_width: Pixels,
2201 em_width: Pixels,
2202 font_size: Pixels,
2203 rem_size: Pixels,
2204 cx: &App,
2205 ) -> Option<Pixels> {
2206 if minimap_settings.show == ShowMinimap::Auto && !scrollbars_shown {
2207 return None;
2208 }
2209
2210 let minimap_font_size = self.editor.read_with(cx, |editor, cx| {
2211 editor.minimap().map(|minimap_editor| {
2212 minimap_editor
2213 .read(cx)
2214 .text_style_refinement
2215 .as_ref()
2216 .and_then(|refinement| refinement.font_size)
2217 .unwrap_or(MINIMAP_FONT_SIZE)
2218 })
2219 })?;
2220
2221 let minimap_em_width = em_width * (minimap_font_size.to_pixels(rem_size) / font_size);
2222
2223 let minimap_width = (text_width * MinimapLayout::MINIMAP_WIDTH_PCT)
2224 .min(minimap_em_width * minimap_settings.max_width_columns.get() as f32);
2225
2226 (minimap_width >= minimap_em_width * MinimapLayout::MINIMAP_MIN_WIDTH_COLUMNS)
2227 .then_some(minimap_width)
2228 }
2229
2230 fn prepaint_crease_toggles(
2231 &self,
2232 crease_toggles: &mut [Option<AnyElement>],
2233 line_height: Pixels,
2234 gutter_dimensions: &GutterDimensions,
2235 gutter_settings: crate::editor_settings::Gutter,
2236 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2237 gutter_hitbox: &Hitbox,
2238 window: &mut Window,
2239 cx: &mut App,
2240 ) {
2241 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
2242 if let Some(crease_toggle) = crease_toggle {
2243 debug_assert!(gutter_settings.folds);
2244 let available_space = size(
2245 AvailableSpace::MinContent,
2246 AvailableSpace::Definite(line_height * 0.55),
2247 );
2248 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
2249
2250 let position = point(
2251 gutter_dimensions.width - gutter_dimensions.right_padding,
2252 ix as f32 * line_height
2253 - (scroll_pixel_position.y % ScrollPixelOffset::from(line_height)).into(),
2254 );
2255 let centering_offset = point(
2256 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
2257 (line_height - crease_toggle_size.height) / 2.,
2258 );
2259 let origin = gutter_hitbox.origin + position + centering_offset;
2260 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
2261 }
2262 }
2263 }
2264
2265 fn prepaint_expand_toggles(
2266 &self,
2267 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
2268 window: &mut Window,
2269 cx: &mut App,
2270 ) {
2271 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
2272 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
2273 expand_toggle.layout_as_root(available_space, window, cx);
2274 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
2275 }
2276 }
2277
2278 fn prepaint_crease_trailers(
2279 &self,
2280 trailers: Vec<Option<AnyElement>>,
2281 lines: &[LineWithInvisibles],
2282 line_height: Pixels,
2283 content_origin: gpui::Point<Pixels>,
2284 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2285 em_width: Pixels,
2286 window: &mut Window,
2287 cx: &mut App,
2288 ) -> Vec<Option<CreaseTrailerLayout>> {
2289 trailers
2290 .into_iter()
2291 .enumerate()
2292 .map(|(ix, element)| {
2293 let mut element = element?;
2294 let available_space = size(
2295 AvailableSpace::MinContent,
2296 AvailableSpace::Definite(line_height),
2297 );
2298 let size = element.layout_as_root(available_space, window, cx);
2299
2300 let line = &lines[ix];
2301 let padding = if line.width == Pixels::ZERO {
2302 Pixels::ZERO
2303 } else {
2304 4. * em_width
2305 };
2306 let position = point(
2307 Pixels::from(scroll_pixel_position.x) + line.width + padding,
2308 ix as f32 * line_height
2309 - (scroll_pixel_position.y % ScrollPixelOffset::from(line_height)).into(),
2310 );
2311 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
2312 let origin = content_origin + position + centering_offset;
2313 element.prepaint_as_root(origin, available_space, window, cx);
2314 Some(CreaseTrailerLayout {
2315 element,
2316 bounds: Bounds::new(origin, size),
2317 })
2318 })
2319 .collect()
2320 }
2321
2322 // Folds contained in a hunk are ignored apart from shrinking visual size
2323 // If a fold contains any hunks then that fold line is marked as modified
2324 fn layout_gutter_diff_hunks(
2325 &self,
2326 line_height: Pixels,
2327 gutter_hitbox: &Hitbox,
2328 display_rows: Range<DisplayRow>,
2329 snapshot: &EditorSnapshot,
2330 window: &mut Window,
2331 cx: &mut App,
2332 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
2333 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
2334 let mut display_hunks = snapshot
2335 .display_diff_hunks_for_rows(display_rows, folded_buffers)
2336 .map(|hunk| (hunk, None))
2337 .collect::<Vec<_>>();
2338 let git_gutter_setting = ProjectSettings::get_global(cx).git.git_gutter;
2339 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
2340 for (hunk, hitbox) in &mut display_hunks {
2341 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
2342 let hunk_bounds =
2343 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
2344 *hitbox = Some(window.insert_hitbox(hunk_bounds, HitboxBehavior::BlockMouse));
2345 }
2346 }
2347 }
2348
2349 display_hunks
2350 }
2351
2352 fn layout_inline_diagnostics(
2353 &self,
2354 line_layouts: &[LineWithInvisibles],
2355 crease_trailers: &[Option<CreaseTrailerLayout>],
2356 row_block_types: &HashMap<DisplayRow, bool>,
2357 content_origin: gpui::Point<Pixels>,
2358 scroll_position: gpui::Point<ScrollOffset>,
2359 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2360 edit_prediction_popover_origin: Option<gpui::Point<Pixels>>,
2361 start_row: DisplayRow,
2362 end_row: DisplayRow,
2363 line_height: Pixels,
2364 em_width: Pixels,
2365 style: &EditorStyle,
2366 window: &mut Window,
2367 cx: &mut App,
2368 ) -> HashMap<DisplayRow, AnyElement> {
2369 let max_severity = match self
2370 .editor
2371 .read(cx)
2372 .inline_diagnostics_enabled()
2373 .then(|| {
2374 ProjectSettings::get_global(cx)
2375 .diagnostics
2376 .inline
2377 .max_severity
2378 .unwrap_or_else(|| self.editor.read(cx).diagnostics_max_severity)
2379 .into_lsp()
2380 })
2381 .flatten()
2382 {
2383 Some(max_severity) => max_severity,
2384 None => return HashMap::default(),
2385 };
2386
2387 let active_diagnostics_group =
2388 if let ActiveDiagnostic::Group(group) = &self.editor.read(cx).active_diagnostics {
2389 Some(group.group_id)
2390 } else {
2391 None
2392 };
2393
2394 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
2395 let snapshot = editor.snapshot(window, cx);
2396 editor
2397 .inline_diagnostics
2398 .iter()
2399 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
2400 .filter(|(_, diagnostic)| match active_diagnostics_group {
2401 Some(active_diagnostics_group) => {
2402 // Active diagnostics are all shown in the editor already, no need to display them inline
2403 diagnostic.group_id != active_diagnostics_group
2404 }
2405 None => true,
2406 })
2407 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
2408 .skip_while(|(point, _)| point.row() < start_row)
2409 .take_while(|(point, _)| point.row() < end_row)
2410 .filter(|(point, _)| !row_block_types.contains_key(&point.row()))
2411 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
2412 acc.entry(point.row())
2413 .or_insert_with(Vec::new)
2414 .push(diagnostic);
2415 acc
2416 })
2417 });
2418
2419 if diagnostics_by_rows.is_empty() {
2420 return HashMap::default();
2421 }
2422
2423 let severity_to_color = |sev: &lsp::DiagnosticSeverity| match sev {
2424 &lsp::DiagnosticSeverity::ERROR => Color::Error,
2425 &lsp::DiagnosticSeverity::WARNING => Color::Warning,
2426 &lsp::DiagnosticSeverity::INFORMATION => Color::Info,
2427 &lsp::DiagnosticSeverity::HINT => Color::Hint,
2428 _ => Color::Error,
2429 };
2430
2431 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
2432 let min_x = column_pixels(
2433 &self.style,
2434 ProjectSettings::get_global(cx)
2435 .diagnostics
2436 .inline
2437 .min_column as usize,
2438 window,
2439 );
2440
2441 let mut elements = HashMap::default();
2442 for (row, mut diagnostics) in diagnostics_by_rows {
2443 diagnostics.sort_by_key(|diagnostic| {
2444 (
2445 diagnostic.severity,
2446 std::cmp::Reverse(diagnostic.is_primary),
2447 diagnostic.start.row,
2448 diagnostic.start.column,
2449 )
2450 });
2451
2452 let Some(diagnostic_to_render) = diagnostics
2453 .iter()
2454 .find(|diagnostic| diagnostic.is_primary)
2455 .or_else(|| diagnostics.first())
2456 else {
2457 continue;
2458 };
2459
2460 let pos_y = content_origin.y + line_height * (row.0 as f64 - scroll_position.y) as f32;
2461
2462 let window_ix = row.0.saturating_sub(start_row.0) as usize;
2463 let pos_x = {
2464 let crease_trailer_layout = &crease_trailers[window_ix];
2465 let line_layout = &line_layouts[window_ix];
2466
2467 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
2468 crease_trailer.bounds.right()
2469 } else {
2470 Pixels::from(
2471 ScrollPixelOffset::from(content_origin.x + line_layout.width)
2472 - scroll_pixel_position.x,
2473 )
2474 };
2475
2476 let padded_line = line_end + padding;
2477 let min_start = Pixels::from(
2478 ScrollPixelOffset::from(content_origin.x + min_x) - scroll_pixel_position.x,
2479 );
2480
2481 cmp::max(padded_line, min_start)
2482 };
2483
2484 let behind_edit_prediction_popover = edit_prediction_popover_origin
2485 .as_ref()
2486 .is_some_and(|edit_prediction_popover_origin| {
2487 (pos_y..pos_y + line_height).contains(&edit_prediction_popover_origin.y)
2488 });
2489 let opacity = if behind_edit_prediction_popover {
2490 0.5
2491 } else {
2492 1.0
2493 };
2494
2495 let mut element = h_flex()
2496 .id(("diagnostic", row.0))
2497 .h(line_height)
2498 .w_full()
2499 .px_1()
2500 .rounded_xs()
2501 .opacity(opacity)
2502 .bg(severity_to_color(&diagnostic_to_render.severity)
2503 .color(cx)
2504 .opacity(0.05))
2505 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
2506 .text_sm()
2507 .font(style.text.font())
2508 .child(diagnostic_to_render.message.clone())
2509 .into_any();
2510
2511 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
2512
2513 elements.insert(row, element);
2514 }
2515
2516 elements
2517 }
2518
2519 fn layout_inline_code_actions(
2520 &self,
2521 display_point: DisplayPoint,
2522 content_origin: gpui::Point<Pixels>,
2523 scroll_position: gpui::Point<ScrollOffset>,
2524 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2525 line_height: Pixels,
2526 snapshot: &EditorSnapshot,
2527 window: &mut Window,
2528 cx: &mut App,
2529 ) -> Option<AnyElement> {
2530 // Don't show code actions in split diff view
2531 if self.split_side.is_some() {
2532 return None;
2533 }
2534
2535 if !snapshot
2536 .show_code_actions
2537 .unwrap_or(EditorSettings::get_global(cx).inline_code_actions)
2538 {
2539 return None;
2540 }
2541
2542 let icon_size = ui::IconSize::XSmall;
2543 let mut button = self.editor.update(cx, |editor, cx| {
2544 editor.available_code_actions.as_ref()?;
2545 let active = editor
2546 .context_menu
2547 .borrow()
2548 .as_ref()
2549 .and_then(|menu| {
2550 if let crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2551 deployed_from,
2552 ..
2553 }) = menu
2554 {
2555 deployed_from.as_ref()
2556 } else {
2557 None
2558 }
2559 })
2560 .is_some_and(|source| matches!(source, CodeActionSource::Indicator(..)));
2561 Some(editor.render_inline_code_actions(icon_size, display_point.row(), active, cx))
2562 })?;
2563
2564 let buffer_point = display_point.to_point(&snapshot.display_snapshot);
2565
2566 // do not show code action for folded line
2567 if snapshot.is_line_folded(MultiBufferRow(buffer_point.row)) {
2568 return None;
2569 }
2570
2571 // do not show code action for blank line with cursor
2572 let line_indent = snapshot
2573 .display_snapshot
2574 .buffer_snapshot()
2575 .line_indent_for_row(MultiBufferRow(buffer_point.row));
2576 if line_indent.is_line_blank() {
2577 return None;
2578 }
2579
2580 const INLINE_SLOT_CHAR_LIMIT: u32 = 4;
2581 const MAX_ALTERNATE_DISTANCE: u32 = 8;
2582
2583 let excerpt_id = snapshot
2584 .display_snapshot
2585 .buffer_snapshot()
2586 .excerpt_containing(buffer_point..buffer_point)
2587 .map(|excerpt| excerpt.id());
2588
2589 let is_valid_row = |row_candidate: u32| -> bool {
2590 // move to other row if folded row
2591 if snapshot.is_line_folded(MultiBufferRow(row_candidate)) {
2592 return false;
2593 }
2594 if buffer_point.row == row_candidate {
2595 // move to other row if cursor is in slot
2596 if buffer_point.column < INLINE_SLOT_CHAR_LIMIT {
2597 return false;
2598 }
2599 } else {
2600 let candidate_point = MultiBufferPoint {
2601 row: row_candidate,
2602 column: 0,
2603 };
2604 let candidate_excerpt_id = snapshot
2605 .display_snapshot
2606 .buffer_snapshot()
2607 .excerpt_containing(candidate_point..candidate_point)
2608 .map(|excerpt| excerpt.id());
2609 // move to other row if different excerpt
2610 if excerpt_id != candidate_excerpt_id {
2611 return false;
2612 }
2613 }
2614 let line_indent = snapshot
2615 .display_snapshot
2616 .buffer_snapshot()
2617 .line_indent_for_row(MultiBufferRow(row_candidate));
2618 // use this row if it's blank
2619 if line_indent.is_line_blank() {
2620 true
2621 } else {
2622 // use this row if code starts after slot
2623 let indent_size = snapshot
2624 .display_snapshot
2625 .buffer_snapshot()
2626 .indent_size_for_line(MultiBufferRow(row_candidate));
2627 indent_size.len >= INLINE_SLOT_CHAR_LIMIT
2628 }
2629 };
2630
2631 let new_buffer_row = if is_valid_row(buffer_point.row) {
2632 Some(buffer_point.row)
2633 } else {
2634 let max_row = snapshot.display_snapshot.buffer_snapshot().max_point().row;
2635 (1..=MAX_ALTERNATE_DISTANCE).find_map(|offset| {
2636 let row_above = buffer_point.row.saturating_sub(offset);
2637 let row_below = buffer_point.row + offset;
2638 if row_above != buffer_point.row && is_valid_row(row_above) {
2639 Some(row_above)
2640 } else if row_below <= max_row && is_valid_row(row_below) {
2641 Some(row_below)
2642 } else {
2643 None
2644 }
2645 })
2646 }?;
2647
2648 let new_display_row = snapshot
2649 .display_snapshot
2650 .point_to_display_point(
2651 Point {
2652 row: new_buffer_row,
2653 column: buffer_point.column,
2654 },
2655 text::Bias::Left,
2656 )
2657 .row();
2658
2659 let start_y = content_origin.y
2660 + (((new_display_row.as_f64() - scroll_position.y) as f32) * line_height)
2661 + (line_height / 2.0)
2662 - (icon_size.square(window, cx) / 2.);
2663 let start_x = (ScrollPixelOffset::from(content_origin.x) - scroll_pixel_position.x
2664 + ScrollPixelOffset::from(window.rem_size() * 0.1))
2665 .into();
2666
2667 let absolute_offset = gpui::point(start_x, start_y);
2668 button.layout_as_root(gpui::AvailableSpace::min_size(), window, cx);
2669 button.prepaint_as_root(
2670 absolute_offset,
2671 gpui::AvailableSpace::min_size(),
2672 window,
2673 cx,
2674 );
2675 Some(button)
2676 }
2677
2678 fn layout_inline_blame(
2679 &self,
2680 display_row: DisplayRow,
2681 row_info: &RowInfo,
2682 line_layout: &LineWithInvisibles,
2683 crease_trailer: Option<&CreaseTrailerLayout>,
2684 em_width: Pixels,
2685 content_origin: gpui::Point<Pixels>,
2686 scroll_position: gpui::Point<ScrollOffset>,
2687 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2688 line_height: Pixels,
2689 window: &mut Window,
2690 cx: &mut App,
2691 ) -> Option<InlineBlameLayout> {
2692 if !self
2693 .editor
2694 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
2695 {
2696 return None;
2697 }
2698
2699 let editor = self.editor.read(cx);
2700 let blame = editor.blame.clone()?;
2701 let padding = {
2702 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
2703
2704 let mut padding = ProjectSettings::get_global(cx).git.inline_blame.padding as f32;
2705
2706 if let Some(edit_prediction) = editor.active_edit_prediction.as_ref()
2707 && let EditPrediction::Edit {
2708 display_mode: EditDisplayMode::TabAccept,
2709 ..
2710 } = &edit_prediction.completion
2711 {
2712 padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS
2713 }
2714
2715 padding * em_width
2716 };
2717
2718 let (buffer_id, entry) = blame
2719 .update(cx, |blame, cx| {
2720 blame.blame_for_rows(&[*row_info], cx).next()
2721 })
2722 .flatten()?;
2723
2724 let mut element = render_inline_blame_entry(entry.clone(), &self.style, cx)?;
2725
2726 let start_y =
2727 content_origin.y + line_height * ((display_row.as_f64() - scroll_position.y) as f32);
2728
2729 let start_x = {
2730 let line_end = if let Some(crease_trailer) = crease_trailer {
2731 crease_trailer.bounds.right()
2732 } else {
2733 Pixels::from(
2734 ScrollPixelOffset::from(content_origin.x + line_layout.width)
2735 - scroll_pixel_position.x,
2736 )
2737 };
2738
2739 let padded_line_end = line_end + padding;
2740
2741 let min_column_in_pixels = column_pixels(
2742 &self.style,
2743 ProjectSettings::get_global(cx).git.inline_blame.min_column as usize,
2744 window,
2745 );
2746 let min_start = Pixels::from(
2747 ScrollPixelOffset::from(content_origin.x + min_column_in_pixels)
2748 - scroll_pixel_position.x,
2749 );
2750
2751 cmp::max(padded_line_end, min_start)
2752 };
2753
2754 let absolute_offset = point(start_x, start_y);
2755 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2756 let bounds = Bounds::new(absolute_offset, size);
2757
2758 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
2759
2760 Some(InlineBlameLayout {
2761 element,
2762 bounds,
2763 buffer_id,
2764 entry,
2765 })
2766 }
2767
2768 fn layout_blame_popover(
2769 &self,
2770 editor_snapshot: &EditorSnapshot,
2771 text_hitbox: &Hitbox,
2772 line_height: Pixels,
2773 window: &mut Window,
2774 cx: &mut App,
2775 ) {
2776 if !self.editor.read(cx).inline_blame_popover.is_some() {
2777 return;
2778 }
2779
2780 let Some(blame) = self.editor.read(cx).blame.clone() else {
2781 return;
2782 };
2783 let cursor_point = self
2784 .editor
2785 .read(cx)
2786 .selections
2787 .newest::<language::Point>(&editor_snapshot.display_snapshot)
2788 .head();
2789
2790 let Some((buffer, buffer_point, _)) = editor_snapshot
2791 .buffer_snapshot()
2792 .point_to_buffer_point(cursor_point)
2793 else {
2794 return;
2795 };
2796
2797 let row_info = RowInfo {
2798 buffer_id: Some(buffer.remote_id()),
2799 buffer_row: Some(buffer_point.row),
2800 ..Default::default()
2801 };
2802
2803 let Some((buffer_id, blame_entry)) = blame
2804 .update(cx, |blame, cx| blame.blame_for_rows(&[row_info], cx).next())
2805 .flatten()
2806 else {
2807 return;
2808 };
2809
2810 let Some((popover_state, target_point)) = self.editor.read_with(cx, |editor, _| {
2811 editor
2812 .inline_blame_popover
2813 .as_ref()
2814 .map(|state| (state.popover_state.clone(), state.position))
2815 }) else {
2816 return;
2817 };
2818
2819 let workspace = self
2820 .editor
2821 .read_with(cx, |editor, _| editor.workspace().map(|w| w.downgrade()));
2822
2823 let maybe_element = workspace.and_then(|workspace| {
2824 render_blame_entry_popover(
2825 blame_entry,
2826 popover_state.scroll_handle,
2827 popover_state.commit_message,
2828 popover_state.markdown,
2829 workspace,
2830 &blame,
2831 buffer_id,
2832 window,
2833 cx,
2834 )
2835 });
2836
2837 if let Some(mut element) = maybe_element {
2838 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2839 let overall_height = size.height + HOVER_POPOVER_GAP;
2840 let popover_origin = if target_point.y > overall_height {
2841 point(target_point.x, target_point.y - size.height)
2842 } else {
2843 point(
2844 target_point.x,
2845 target_point.y + line_height + HOVER_POPOVER_GAP,
2846 )
2847 };
2848
2849 let horizontal_offset = (text_hitbox.top_right().x
2850 - POPOVER_RIGHT_OFFSET
2851 - (popover_origin.x + size.width))
2852 .min(Pixels::ZERO);
2853
2854 let origin = point(popover_origin.x + horizontal_offset, popover_origin.y);
2855 let popover_bounds = Bounds::new(origin, size);
2856
2857 self.editor.update(cx, |editor, _| {
2858 if let Some(state) = &mut editor.inline_blame_popover {
2859 state.popover_bounds = Some(popover_bounds);
2860 }
2861 });
2862
2863 window.defer_draw(element, origin, 2);
2864 }
2865 }
2866
2867 fn layout_blame_entries(
2868 &self,
2869 buffer_rows: &[RowInfo],
2870 em_width: Pixels,
2871 scroll_position: gpui::Point<ScrollOffset>,
2872 line_height: Pixels,
2873 gutter_hitbox: &Hitbox,
2874 max_width: Option<Pixels>,
2875 window: &mut Window,
2876 cx: &mut App,
2877 ) -> Option<Vec<AnyElement>> {
2878 if !self
2879 .editor
2880 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
2881 {
2882 return None;
2883 }
2884
2885 let blame = self.editor.read(cx).blame.clone()?;
2886 let workspace = self.editor.read(cx).workspace()?;
2887 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
2888 blame.blame_for_rows(buffer_rows, cx).collect()
2889 });
2890
2891 let width = if let Some(max_width) = max_width {
2892 AvailableSpace::Definite(max_width)
2893 } else {
2894 AvailableSpace::MaxContent
2895 };
2896 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
2897 let start_x = em_width;
2898
2899 let mut last_used_color: Option<(Hsla, Oid)> = None;
2900 let blame_renderer = cx.global::<GlobalBlameRenderer>().0.clone();
2901
2902 let shaped_lines = blamed_rows
2903 .into_iter()
2904 .enumerate()
2905 .flat_map(|(ix, blame_entry)| {
2906 let (buffer_id, blame_entry) = blame_entry?;
2907 let mut element = render_blame_entry(
2908 ix,
2909 &blame,
2910 blame_entry,
2911 &self.style,
2912 &mut last_used_color,
2913 self.editor.clone(),
2914 workspace.clone(),
2915 buffer_id,
2916 &*blame_renderer,
2917 window,
2918 cx,
2919 )?;
2920
2921 let start_y = ix as f32 * line_height
2922 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height));
2923 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
2924
2925 element.prepaint_as_root(
2926 absolute_offset,
2927 size(width, AvailableSpace::MinContent),
2928 window,
2929 cx,
2930 );
2931
2932 Some(element)
2933 })
2934 .collect();
2935
2936 Some(shaped_lines)
2937 }
2938
2939 fn layout_indent_guides(
2940 &self,
2941 content_origin: gpui::Point<Pixels>,
2942 text_origin: gpui::Point<Pixels>,
2943 visible_buffer_range: Range<MultiBufferRow>,
2944 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2945 line_height: Pixels,
2946 snapshot: &DisplaySnapshot,
2947 window: &mut Window,
2948 cx: &mut App,
2949 ) -> Option<Vec<IndentGuideLayout>> {
2950 let indent_guides = self.editor.update(cx, |editor, cx| {
2951 editor.indent_guides(visible_buffer_range, snapshot, cx)
2952 })?;
2953
2954 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
2955 editor
2956 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
2957 .unwrap_or_default()
2958 });
2959
2960 Some(
2961 indent_guides
2962 .into_iter()
2963 .enumerate()
2964 .filter_map(|(i, indent_guide)| {
2965 let single_indent_width =
2966 column_pixels(&self.style, indent_guide.tab_size as usize, window);
2967 let total_width = single_indent_width * indent_guide.depth as f32;
2968 let start_x = Pixels::from(
2969 ScrollOffset::from(content_origin.x + total_width)
2970 - scroll_pixel_position.x,
2971 );
2972 if start_x >= text_origin.x {
2973 let (offset_y, length) = Self::calculate_indent_guide_bounds(
2974 indent_guide.start_row..indent_guide.end_row,
2975 line_height,
2976 snapshot,
2977 );
2978
2979 let start_y = Pixels::from(
2980 ScrollOffset::from(content_origin.y) + offset_y
2981 - scroll_pixel_position.y,
2982 );
2983
2984 Some(IndentGuideLayout {
2985 origin: point(start_x, start_y),
2986 length,
2987 single_indent_width,
2988 depth: indent_guide.depth,
2989 active: active_indent_guide_indices.contains(&i),
2990 settings: indent_guide.settings,
2991 })
2992 } else {
2993 None
2994 }
2995 })
2996 .collect(),
2997 )
2998 }
2999
3000 fn layout_wrap_guides(
3001 &self,
3002 em_advance: Pixels,
3003 scroll_position: gpui::Point<f64>,
3004 content_origin: gpui::Point<Pixels>,
3005 scrollbar_layout: Option<&EditorScrollbars>,
3006 vertical_scrollbar_width: Pixels,
3007 hitbox: &Hitbox,
3008 window: &Window,
3009 cx: &App,
3010 ) -> SmallVec<[(Pixels, bool); 2]> {
3011 let scroll_left = scroll_position.x as f32 * em_advance;
3012 let content_origin = content_origin.x;
3013 let horizontal_offset = content_origin - scroll_left;
3014 let vertical_scrollbar_width = scrollbar_layout
3015 .and_then(|layout| layout.visible.then_some(vertical_scrollbar_width))
3016 .unwrap_or_default();
3017
3018 self.editor
3019 .read(cx)
3020 .wrap_guides(cx)
3021 .into_iter()
3022 .flat_map(|(guide, active)| {
3023 let wrap_position = column_pixels(&self.style, guide, window);
3024 let wrap_guide_x = wrap_position + horizontal_offset;
3025 let display_wrap_guide = wrap_guide_x >= content_origin
3026 && wrap_guide_x <= hitbox.bounds.right() - vertical_scrollbar_width;
3027
3028 display_wrap_guide.then_some((wrap_guide_x, active))
3029 })
3030 .collect()
3031 }
3032
3033 fn calculate_indent_guide_bounds(
3034 row_range: Range<MultiBufferRow>,
3035 line_height: Pixels,
3036 snapshot: &DisplaySnapshot,
3037 ) -> (f64, gpui::Pixels) {
3038 let start_point = Point::new(row_range.start.0, 0);
3039 let end_point = Point::new(row_range.end.0, 0);
3040
3041 let row_range = start_point.to_display_point(snapshot).row()
3042 ..end_point.to_display_point(snapshot).row();
3043
3044 let mut prev_line = start_point;
3045 prev_line.row = prev_line.row.saturating_sub(1);
3046 let prev_line = prev_line.to_display_point(snapshot).row();
3047
3048 let mut cons_line = end_point;
3049 cons_line.row += 1;
3050 let cons_line = cons_line.to_display_point(snapshot).row();
3051
3052 let mut offset_y = row_range.start.as_f64() * f64::from(line_height);
3053 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
3054
3055 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
3056 if row_range.end == cons_line {
3057 length += line_height;
3058 }
3059
3060 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
3061 // we want to extend the indent guide to the start of the block.
3062 let mut block_height = 0;
3063 let mut block_offset = 0;
3064 let mut found_excerpt_header = false;
3065 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
3066 if matches!(
3067 block,
3068 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
3069 ) {
3070 found_excerpt_header = true;
3071 break;
3072 }
3073 block_offset += block.height();
3074 block_height += block.height();
3075 }
3076 if !found_excerpt_header {
3077 offset_y -= block_offset as f64 * f64::from(line_height);
3078 length += block_height as f32 * line_height;
3079 }
3080
3081 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
3082 // we want to ensure that the indent guide stops before the excerpt header.
3083 let mut block_height = 0;
3084 let mut found_excerpt_header = false;
3085 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
3086 if matches!(
3087 block,
3088 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
3089 ) {
3090 found_excerpt_header = true;
3091 }
3092 block_height += block.height();
3093 }
3094 if found_excerpt_header {
3095 length -= block_height as f32 * line_height;
3096 }
3097
3098 (offset_y, length)
3099 }
3100
3101 fn layout_breakpoints(
3102 &self,
3103 line_height: Pixels,
3104 range: Range<DisplayRow>,
3105 scroll_position: gpui::Point<ScrollOffset>,
3106 gutter_dimensions: &GutterDimensions,
3107 gutter_hitbox: &Hitbox,
3108 snapshot: &EditorSnapshot,
3109 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
3110 row_infos: &[RowInfo],
3111 window: &mut Window,
3112 cx: &mut App,
3113 ) -> Vec<AnyElement> {
3114 if self.split_side == Some(SplitSide::Left) {
3115 return Vec::new();
3116 }
3117
3118 self.editor.update(cx, |editor, cx| {
3119 breakpoints
3120 .into_iter()
3121 .filter_map(|(display_row, (text_anchor, bp, state))| {
3122 if row_infos
3123 .get((display_row.0.saturating_sub(range.start.0)) as usize)
3124 .is_some_and(|row_info| {
3125 row_info.expand_info.is_some()
3126 || row_info
3127 .diff_status
3128 .is_some_and(|status| status.is_deleted())
3129 })
3130 {
3131 return None;
3132 }
3133
3134 if range.start > display_row || range.end < display_row {
3135 return None;
3136 }
3137
3138 let row =
3139 MultiBufferRow(DisplayPoint::new(display_row, 0).to_point(snapshot).row);
3140 if snapshot.is_line_folded(row) {
3141 return None;
3142 }
3143
3144 let button = editor.render_breakpoint(text_anchor, display_row, &bp, state, cx);
3145
3146 let button = prepaint_gutter_button(
3147 button.into_any_element(),
3148 display_row,
3149 line_height,
3150 gutter_dimensions,
3151 scroll_position,
3152 gutter_hitbox,
3153 window,
3154 cx,
3155 );
3156 Some(button)
3157 })
3158 .collect_vec()
3159 })
3160 }
3161
3162 fn should_render_diff_review_button(
3163 &self,
3164 range: Range<DisplayRow>,
3165 row_infos: &[RowInfo],
3166 snapshot: &EditorSnapshot,
3167 cx: &App,
3168 ) -> Option<(DisplayRow, Option<u32>)> {
3169 if !cx.has_flag::<DiffReviewFeatureFlag>() {
3170 return None;
3171 }
3172
3173 let show_diff_review_button = self.editor.read(cx).show_diff_review_button();
3174 if !show_diff_review_button {
3175 return None;
3176 }
3177
3178 let indicator = self.editor.read(cx).gutter_diff_review_indicator.0?;
3179 if !indicator.is_active {
3180 return None;
3181 }
3182
3183 let display_row = indicator
3184 .start
3185 .to_display_point(&snapshot.display_snapshot)
3186 .row();
3187 let row_index = (display_row.0.saturating_sub(range.start.0)) as usize;
3188
3189 let row_info = row_infos.get(row_index);
3190 if row_info.is_some_and(|row_info| row_info.expand_info.is_some()) {
3191 return None;
3192 }
3193
3194 let buffer_id = row_info.and_then(|info| info.buffer_id);
3195 if buffer_id.is_none() {
3196 return None;
3197 }
3198
3199 let editor = self.editor.read(cx);
3200 if buffer_id.is_some_and(|buffer_id| editor.is_buffer_folded(buffer_id, cx)) {
3201 return None;
3202 }
3203
3204 let buffer_row = row_info.and_then(|info| info.buffer_row);
3205 Some((display_row, buffer_row))
3206 }
3207
3208 #[allow(clippy::too_many_arguments)]
3209 fn layout_run_indicators(
3210 &self,
3211 line_height: Pixels,
3212 range: Range<DisplayRow>,
3213 row_infos: &[RowInfo],
3214 scroll_position: gpui::Point<ScrollOffset>,
3215 gutter_dimensions: &GutterDimensions,
3216 gutter_hitbox: &Hitbox,
3217 snapshot: &EditorSnapshot,
3218 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
3219 window: &mut Window,
3220 cx: &mut App,
3221 ) -> Vec<AnyElement> {
3222 if self.split_side == Some(SplitSide::Left) {
3223 return Vec::new();
3224 }
3225
3226 self.editor.update(cx, |editor, cx| {
3227 let active_task_indicator_row =
3228 // TODO: add edit button on the right side of each row in the context menu
3229 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
3230 deployed_from,
3231 actions,
3232 ..
3233 })) = editor.context_menu.borrow().as_ref()
3234 {
3235 actions
3236 .tasks()
3237 .map(|tasks| tasks.position.to_display_point(snapshot).row())
3238 .or_else(|| match deployed_from {
3239 Some(CodeActionSource::Indicator(row)) => Some(*row),
3240 _ => None,
3241 })
3242 } else {
3243 None
3244 };
3245
3246 let offset_range_start =
3247 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
3248
3249 let offset_range_end =
3250 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
3251
3252 editor
3253 .tasks
3254 .iter()
3255 .filter_map(|(_, tasks)| {
3256 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot());
3257 if multibuffer_point < offset_range_start
3258 || multibuffer_point > offset_range_end
3259 {
3260 return None;
3261 }
3262 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
3263 let buffer_folded = snapshot
3264 .buffer_snapshot()
3265 .buffer_line_for_row(multibuffer_row)
3266 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
3267 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
3268 .unwrap_or(false);
3269 if buffer_folded {
3270 return None;
3271 }
3272
3273 if snapshot.is_line_folded(multibuffer_row) {
3274 // Skip folded indicators, unless it's the starting line of a fold.
3275 if multibuffer_row
3276 .0
3277 .checked_sub(1)
3278 .is_some_and(|previous_row| {
3279 snapshot.is_line_folded(MultiBufferRow(previous_row))
3280 })
3281 {
3282 return None;
3283 }
3284 }
3285
3286 let display_row = multibuffer_point.to_display_point(snapshot).row();
3287 if !range.contains(&display_row) {
3288 return None;
3289 }
3290 if row_infos
3291 .get((display_row - range.start).0 as usize)
3292 .is_some_and(|row_info| row_info.expand_info.is_some())
3293 {
3294 return None;
3295 }
3296
3297 let removed_breakpoint = breakpoints.remove(&display_row);
3298 let button = editor.render_run_indicator(
3299 &self.style,
3300 Some(display_row) == active_task_indicator_row,
3301 display_row,
3302 removed_breakpoint,
3303 cx,
3304 );
3305
3306 let button = prepaint_gutter_button(
3307 button.into_any_element(),
3308 display_row,
3309 line_height,
3310 gutter_dimensions,
3311 scroll_position,
3312 gutter_hitbox,
3313 window,
3314 cx,
3315 );
3316 Some(button)
3317 })
3318 .collect_vec()
3319 })
3320 }
3321
3322 fn layout_expand_toggles(
3323 &self,
3324 gutter_hitbox: &Hitbox,
3325 gutter_dimensions: GutterDimensions,
3326 em_width: Pixels,
3327 line_height: Pixels,
3328 scroll_position: gpui::Point<ScrollOffset>,
3329 buffer_rows: &[RowInfo],
3330 window: &mut Window,
3331 cx: &mut App,
3332 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
3333 if self.editor.read(cx).disable_expand_excerpt_buttons {
3334 return vec![];
3335 }
3336
3337 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
3338
3339 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
3340
3341 let max_line_number_length = self
3342 .editor
3343 .read(cx)
3344 .buffer()
3345 .read(cx)
3346 .snapshot(cx)
3347 .widest_line_number()
3348 .ilog10()
3349 + 1;
3350
3351 let git_gutter_width = Self::gutter_strip_width(line_height)
3352 + gutter_dimensions
3353 .git_blame_entries_width
3354 .unwrap_or_default();
3355 let available_width = gutter_dimensions.left_padding - git_gutter_width;
3356
3357 buffer_rows
3358 .iter()
3359 .enumerate()
3360 .map(|(ix, row_info)| {
3361 let ExpandInfo {
3362 excerpt_id,
3363 direction,
3364 } = row_info.expand_info?;
3365
3366 let icon_name = match direction {
3367 ExpandExcerptDirection::Up => IconName::ExpandUp,
3368 ExpandExcerptDirection::Down => IconName::ExpandDown,
3369 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
3370 };
3371
3372 let editor = self.editor.clone();
3373 let is_wide = max_line_number_length
3374 >= EditorSettings::get_global(cx).gutter.min_line_number_digits as u32
3375 && row_info
3376 .buffer_row
3377 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
3378 || gutter_dimensions.right_padding == px(0.);
3379
3380 let width = if is_wide {
3381 available_width - px(5.)
3382 } else {
3383 available_width + em_width - px(5.)
3384 };
3385
3386 let toggle = IconButton::new(("expand", ix), icon_name)
3387 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
3388 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
3389 .width(width)
3390 .on_click(move |_, window, cx| {
3391 editor.update(cx, |editor, cx| {
3392 editor.expand_excerpt(excerpt_id, direction, window, cx);
3393 });
3394 })
3395 .tooltip(Tooltip::for_action_title(
3396 "Expand Excerpt",
3397 &crate::actions::ExpandExcerpts::default(),
3398 ))
3399 .into_any_element();
3400
3401 let position = point(
3402 git_gutter_width + px(1.),
3403 ix as f32 * line_height
3404 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height))
3405 + px(1.),
3406 );
3407 let origin = gutter_hitbox.origin + position;
3408
3409 Some((toggle, origin))
3410 })
3411 .collect()
3412 }
3413
3414 fn layout_line_numbers(
3415 &self,
3416 gutter_hitbox: Option<&Hitbox>,
3417 gutter_dimensions: GutterDimensions,
3418 line_height: Pixels,
3419 scroll_position: gpui::Point<ScrollOffset>,
3420 rows: Range<DisplayRow>,
3421 buffer_rows: &[RowInfo],
3422 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3423 current_selection_head: Option<DisplayRow>,
3424 snapshot: &EditorSnapshot,
3425 window: &mut Window,
3426 cx: &mut App,
3427 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
3428 let include_line_numbers = snapshot
3429 .show_line_numbers
3430 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
3431 if !include_line_numbers {
3432 return Arc::default();
3433 }
3434
3435 let relative = self.editor.read(cx).relative_line_numbers(cx);
3436
3437 let relative_line_numbers_enabled = relative.enabled();
3438 let relative_rows = if relative_line_numbers_enabled
3439 && let Some(current_selection_head) = current_selection_head
3440 {
3441 snapshot.calculate_relative_line_numbers(
3442 &rows,
3443 current_selection_head,
3444 relative.wrapped(),
3445 )
3446 } else {
3447 Default::default()
3448 };
3449
3450 let mut line_number = String::new();
3451 let segments = buffer_rows.iter().enumerate().flat_map(|(ix, row_info)| {
3452 let display_row = DisplayRow(rows.start.0 + ix as u32);
3453 line_number.clear();
3454 let non_relative_number = if relative.wrapped() {
3455 row_info.buffer_row.or(row_info.wrapped_buffer_row)? + 1
3456 } else {
3457 row_info.buffer_row? + 1
3458 };
3459 let relative_number = relative_rows.get(&display_row);
3460 if !(relative_line_numbers_enabled && relative_number.is_some())
3461 && !snapshot.number_deleted_lines
3462 && row_info
3463 .diff_status
3464 .is_some_and(|status| status.is_deleted())
3465 {
3466 return None;
3467 }
3468
3469 let number = relative_number.unwrap_or(&non_relative_number);
3470 write!(&mut line_number, "{number}").unwrap();
3471
3472 let color = active_rows
3473 .get(&display_row)
3474 .map(|spec| {
3475 if spec.breakpoint {
3476 cx.theme().colors().debugger_accent
3477 } else {
3478 cx.theme().colors().editor_active_line_number
3479 }
3480 })
3481 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
3482 let shaped_line =
3483 self.shape_line_number(SharedString::from(&line_number), color, window);
3484 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
3485 let line_origin = gutter_hitbox.map(|hitbox| {
3486 hitbox.origin
3487 + point(
3488 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
3489 ix as f32 * line_height
3490 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height)),
3491 )
3492 });
3493
3494 #[cfg(not(test))]
3495 let hitbox = line_origin.map(|line_origin| {
3496 window.insert_hitbox(
3497 Bounds::new(line_origin, size(shaped_line.width, line_height)),
3498 HitboxBehavior::Normal,
3499 )
3500 });
3501 #[cfg(test)]
3502 let hitbox = {
3503 let _ = line_origin;
3504 None
3505 };
3506
3507 let segment = LineNumberSegment {
3508 shaped_line,
3509 hitbox,
3510 };
3511
3512 let buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
3513 let multi_buffer_row = MultiBufferRow(buffer_row);
3514
3515 Some((multi_buffer_row, segment))
3516 });
3517
3518 let mut line_numbers: HashMap<MultiBufferRow, LineNumberLayout> = HashMap::default();
3519 for (buffer_row, segment) in segments {
3520 line_numbers
3521 .entry(buffer_row)
3522 .or_insert_with(|| LineNumberLayout {
3523 segments: Default::default(),
3524 })
3525 .segments
3526 .push(segment);
3527 }
3528 Arc::new(line_numbers)
3529 }
3530
3531 fn layout_crease_toggles(
3532 &self,
3533 rows: Range<DisplayRow>,
3534 row_infos: &[RowInfo],
3535 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3536 snapshot: &EditorSnapshot,
3537 window: &mut Window,
3538 cx: &mut App,
3539 ) -> Vec<Option<AnyElement>> {
3540 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
3541 && snapshot.mode.is_full()
3542 && self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
3543 if include_fold_statuses {
3544 row_infos
3545 .iter()
3546 .enumerate()
3547 .map(|(ix, info)| {
3548 if info.expand_info.is_some() {
3549 return None;
3550 }
3551 let row = info.multibuffer_row?;
3552 let display_row = DisplayRow(rows.start.0 + ix as u32);
3553 let active = active_rows.contains_key(&display_row);
3554
3555 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
3556 })
3557 .collect()
3558 } else {
3559 Vec::new()
3560 }
3561 }
3562
3563 fn layout_crease_trailers(
3564 &self,
3565 buffer_rows: impl IntoIterator<Item = RowInfo>,
3566 snapshot: &EditorSnapshot,
3567 window: &mut Window,
3568 cx: &mut App,
3569 ) -> Vec<Option<AnyElement>> {
3570 buffer_rows
3571 .into_iter()
3572 .map(|row_info| {
3573 if row_info.expand_info.is_some() {
3574 return None;
3575 }
3576 if let Some(row) = row_info.multibuffer_row {
3577 snapshot.render_crease_trailer(row, window, cx)
3578 } else {
3579 None
3580 }
3581 })
3582 .collect()
3583 }
3584
3585 fn bg_segments_per_row(
3586 rows: Range<DisplayRow>,
3587 selections: &[(PlayerColor, Vec<SelectionLayout>)],
3588 highlight_ranges: &[(Range<DisplayPoint>, Hsla)],
3589 base_background: Hsla,
3590 ) -> Vec<Vec<(Range<DisplayPoint>, Hsla)>> {
3591 if rows.start >= rows.end {
3592 return Vec::new();
3593 }
3594 if !base_background.is_opaque() {
3595 // We don't actually know what color is behind this editor.
3596 return Vec::new();
3597 }
3598 let highlight_iter = highlight_ranges.iter().cloned();
3599 let selection_iter = selections.iter().flat_map(|(player_color, layouts)| {
3600 let color = player_color.selection;
3601 layouts.iter().filter_map(move |selection_layout| {
3602 if selection_layout.range.start != selection_layout.range.end {
3603 Some((selection_layout.range.clone(), color))
3604 } else {
3605 None
3606 }
3607 })
3608 });
3609 let mut per_row_map = vec![Vec::new(); rows.len()];
3610 for (range, color) in highlight_iter.chain(selection_iter) {
3611 let covered_rows = if range.end.column() == 0 {
3612 cmp::max(range.start.row(), rows.start)..cmp::min(range.end.row(), rows.end)
3613 } else {
3614 cmp::max(range.start.row(), rows.start)
3615 ..cmp::min(range.end.row().next_row(), rows.end)
3616 };
3617 for row in covered_rows.iter_rows() {
3618 let seg_start = if row == range.start.row() {
3619 range.start
3620 } else {
3621 DisplayPoint::new(row, 0)
3622 };
3623 let seg_end = if row == range.end.row() && range.end.column() != 0 {
3624 range.end
3625 } else {
3626 DisplayPoint::new(row, u32::MAX)
3627 };
3628 let ix = row.minus(rows.start) as usize;
3629 debug_assert!(row >= rows.start && row < rows.end);
3630 debug_assert!(ix < per_row_map.len());
3631 per_row_map[ix].push((seg_start..seg_end, color));
3632 }
3633 }
3634 for row_segments in per_row_map.iter_mut() {
3635 if row_segments.is_empty() {
3636 continue;
3637 }
3638 let segments = mem::take(row_segments);
3639 let merged = Self::merge_overlapping_ranges(segments, base_background);
3640 *row_segments = merged;
3641 }
3642 per_row_map
3643 }
3644
3645 /// Merge overlapping ranges by splitting at all range boundaries and blending colors where
3646 /// multiple ranges overlap. The result contains non-overlapping ranges ordered from left to right.
3647 ///
3648 /// Expects `start.row() == end.row()` for each range.
3649 fn merge_overlapping_ranges(
3650 ranges: Vec<(Range<DisplayPoint>, Hsla)>,
3651 base_background: Hsla,
3652 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
3653 struct Boundary {
3654 pos: DisplayPoint,
3655 is_start: bool,
3656 index: usize,
3657 color: Hsla,
3658 }
3659
3660 let mut boundaries: SmallVec<[Boundary; 16]> = SmallVec::with_capacity(ranges.len() * 2);
3661 for (index, (range, color)) in ranges.iter().enumerate() {
3662 debug_assert!(
3663 range.start.row() == range.end.row(),
3664 "expects single-row ranges"
3665 );
3666 if range.start < range.end {
3667 boundaries.push(Boundary {
3668 pos: range.start,
3669 is_start: true,
3670 index,
3671 color: *color,
3672 });
3673 boundaries.push(Boundary {
3674 pos: range.end,
3675 is_start: false,
3676 index,
3677 color: *color,
3678 });
3679 }
3680 }
3681
3682 if boundaries.is_empty() {
3683 return Vec::new();
3684 }
3685
3686 boundaries
3687 .sort_unstable_by(|a, b| a.pos.cmp(&b.pos).then_with(|| a.is_start.cmp(&b.is_start)));
3688
3689 let mut processed_ranges: Vec<(Range<DisplayPoint>, Hsla)> = Vec::new();
3690 let mut active_ranges: SmallVec<[(usize, Hsla); 8]> = SmallVec::new();
3691
3692 let mut i = 0;
3693 let mut start_pos = boundaries[0].pos;
3694
3695 let boundaries_len = boundaries.len();
3696 while i < boundaries_len {
3697 let current_boundary_pos = boundaries[i].pos;
3698 if start_pos < current_boundary_pos {
3699 if !active_ranges.is_empty() {
3700 let mut color = base_background;
3701 for &(_, c) in &active_ranges {
3702 color = Hsla::blend(color, c);
3703 }
3704 if let Some((last_range, last_color)) = processed_ranges.last_mut() {
3705 if *last_color == color && last_range.end == start_pos {
3706 last_range.end = current_boundary_pos;
3707 } else {
3708 processed_ranges.push((start_pos..current_boundary_pos, color));
3709 }
3710 } else {
3711 processed_ranges.push((start_pos..current_boundary_pos, color));
3712 }
3713 }
3714 }
3715 while i < boundaries_len && boundaries[i].pos == current_boundary_pos {
3716 let active_range = &boundaries[i];
3717 if active_range.is_start {
3718 let idx = active_range.index;
3719 let pos = active_ranges
3720 .binary_search_by_key(&idx, |(i, _)| *i)
3721 .unwrap_or_else(|p| p);
3722 active_ranges.insert(pos, (idx, active_range.color));
3723 } else {
3724 let idx = active_range.index;
3725 if let Ok(pos) = active_ranges.binary_search_by_key(&idx, |(i, _)| *i) {
3726 active_ranges.remove(pos);
3727 }
3728 }
3729 i += 1;
3730 }
3731 start_pos = current_boundary_pos;
3732 }
3733
3734 processed_ranges
3735 }
3736
3737 fn layout_lines(
3738 rows: Range<DisplayRow>,
3739 snapshot: &EditorSnapshot,
3740 style: &EditorStyle,
3741 editor_width: Pixels,
3742 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3743 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
3744 window: &mut Window,
3745 cx: &mut App,
3746 ) -> Vec<LineWithInvisibles> {
3747 if rows.start >= rows.end {
3748 return Vec::new();
3749 }
3750
3751 // Show the placeholder when the editor is empty
3752 if snapshot.is_empty() {
3753 let font_size = style.text.font_size.to_pixels(window.rem_size());
3754 let placeholder_color = cx.theme().colors().text_placeholder;
3755 let placeholder_text = snapshot.placeholder_text();
3756
3757 let placeholder_lines = placeholder_text
3758 .as_ref()
3759 .map_or(Vec::new(), |text| text.split('\n').collect::<Vec<_>>());
3760
3761 let placeholder_line_count = placeholder_lines.len();
3762
3763 placeholder_lines
3764 .into_iter()
3765 .skip(rows.start.0 as usize)
3766 .chain(iter::repeat(""))
3767 .take(cmp::max(rows.len(), placeholder_line_count))
3768 .map(move |line| {
3769 let run = TextRun {
3770 len: line.len(),
3771 font: style.text.font(),
3772 color: placeholder_color,
3773 ..Default::default()
3774 };
3775 let line = window.text_system().shape_line(
3776 line.to_string().into(),
3777 font_size,
3778 &[run],
3779 None,
3780 );
3781 LineWithInvisibles {
3782 width: line.width,
3783 len: line.len,
3784 fragments: smallvec![LineFragment::Text(line)],
3785 invisibles: Vec::new(),
3786 font_size,
3787 }
3788 })
3789 .collect()
3790 } else {
3791 let use_tree_sitter = !snapshot.semantic_tokens_enabled
3792 || snapshot.use_tree_sitter_for_syntax(rows.start, cx);
3793 let chunks = snapshot.highlighted_chunks(rows.clone(), use_tree_sitter, style);
3794 LineWithInvisibles::from_chunks(
3795 chunks,
3796 style,
3797 MAX_LINE_LEN,
3798 rows.len(),
3799 &snapshot.mode,
3800 editor_width,
3801 is_row_soft_wrapped,
3802 bg_segments_per_row,
3803 window,
3804 cx,
3805 )
3806 }
3807 }
3808
3809 fn prepaint_lines(
3810 &self,
3811 start_row: DisplayRow,
3812 line_layouts: &mut [LineWithInvisibles],
3813 line_height: Pixels,
3814 scroll_position: gpui::Point<ScrollOffset>,
3815 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
3816 content_origin: gpui::Point<Pixels>,
3817 window: &mut Window,
3818 cx: &mut App,
3819 ) -> SmallVec<[AnyElement; 1]> {
3820 let mut line_elements = SmallVec::new();
3821 for (ix, line) in line_layouts.iter_mut().enumerate() {
3822 let row = start_row + DisplayRow(ix as u32);
3823 line.prepaint(
3824 line_height,
3825 scroll_position,
3826 scroll_pixel_position,
3827 row,
3828 content_origin,
3829 &mut line_elements,
3830 window,
3831 cx,
3832 );
3833 }
3834 line_elements
3835 }
3836
3837 fn render_block(
3838 &self,
3839 block: &Block,
3840 available_width: AvailableSpace,
3841 block_id: BlockId,
3842 block_row_start: DisplayRow,
3843 snapshot: &EditorSnapshot,
3844 text_x: Pixels,
3845 rows: &Range<DisplayRow>,
3846 line_layouts: &[LineWithInvisibles],
3847 editor_margins: &EditorMargins,
3848 line_height: Pixels,
3849 em_width: Pixels,
3850 text_hitbox: &Hitbox,
3851 editor_width: Pixels,
3852 scroll_width: &mut Pixels,
3853 resized_blocks: &mut HashMap<CustomBlockId, u32>,
3854 row_block_types: &mut HashMap<DisplayRow, bool>,
3855 selections: &[Selection<Point>],
3856 selected_buffer_ids: &Vec<BufferId>,
3857 latest_selection_anchors: &HashMap<BufferId, Anchor>,
3858 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3859 sticky_header_excerpt_id: Option<ExcerptId>,
3860 block_resize_offset: &mut i32,
3861 window: &mut Window,
3862 cx: &mut App,
3863 ) -> Option<(AnyElement, Size<Pixels>, DisplayRow, Pixels)> {
3864 let mut x_position = None;
3865 let mut element = match block {
3866 Block::Custom(custom) => {
3867 let block_start = custom.start().to_point(&snapshot.buffer_snapshot());
3868 let block_end = custom.end().to_point(&snapshot.buffer_snapshot());
3869 if block.place_near() && snapshot.is_line_folded(MultiBufferRow(block_start.row)) {
3870 return None;
3871 }
3872 let align_to = block_start.to_display_point(snapshot);
3873 let x_and_width = |layout: &LineWithInvisibles| {
3874 Some((
3875 text_x + layout.x_for_index(align_to.column() as usize),
3876 text_x + layout.width,
3877 ))
3878 };
3879 let line_ix = align_to.row().0.checked_sub(rows.start.0);
3880 x_position =
3881 if let Some(layout) = line_ix.and_then(|ix| line_layouts.get(ix as usize)) {
3882 x_and_width(layout)
3883 } else {
3884 x_and_width(&layout_line(
3885 align_to.row(),
3886 snapshot,
3887 &self.style,
3888 editor_width,
3889 is_row_soft_wrapped,
3890 window,
3891 cx,
3892 ))
3893 };
3894
3895 let anchor_x = x_position.unwrap().0;
3896
3897 let selected = selections
3898 .binary_search_by(|selection| {
3899 if selection.end <= block_start {
3900 Ordering::Less
3901 } else if selection.start >= block_end {
3902 Ordering::Greater
3903 } else {
3904 Ordering::Equal
3905 }
3906 })
3907 .is_ok();
3908
3909 div()
3910 .size_full()
3911 .child(custom.render(&mut BlockContext {
3912 window,
3913 app: cx,
3914 anchor_x,
3915 margins: editor_margins,
3916 line_height,
3917 em_width,
3918 block_id,
3919 height: custom.height.unwrap_or(1),
3920 selected,
3921 max_width: text_hitbox.size.width.max(*scroll_width),
3922 editor_style: &self.style,
3923 }))
3924 .into_any()
3925 }
3926
3927 Block::FoldedBuffer {
3928 first_excerpt,
3929 height,
3930 ..
3931 } => {
3932 let mut result = v_flex().id(block_id).w_full().pr(editor_margins.right);
3933
3934 if self.should_show_buffer_headers() {
3935 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
3936 let jump_data = header_jump_data(
3937 snapshot,
3938 block_row_start,
3939 *height,
3940 first_excerpt,
3941 latest_selection_anchors,
3942 );
3943 result = result.child(self.render_buffer_header(
3944 first_excerpt,
3945 true,
3946 selected,
3947 false,
3948 jump_data,
3949 window,
3950 cx,
3951 ));
3952 } else {
3953 result =
3954 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
3955 }
3956
3957 result.into_any_element()
3958 }
3959
3960 Block::ExcerptBoundary { .. } => {
3961 let color = cx.theme().colors().clone();
3962 let mut result = v_flex().id(block_id).w_full();
3963
3964 result = result.child(
3965 h_flex().relative().child(
3966 div()
3967 .top(line_height / 2.)
3968 .absolute()
3969 .w_full()
3970 .h_px()
3971 .bg(color.border_variant),
3972 ),
3973 );
3974
3975 result.into_any()
3976 }
3977
3978 Block::BufferHeader { excerpt, height } => {
3979 let mut result = v_flex().id(block_id).w_full();
3980
3981 if self.should_show_buffer_headers() {
3982 let jump_data = header_jump_data(
3983 snapshot,
3984 block_row_start,
3985 *height,
3986 excerpt,
3987 latest_selection_anchors,
3988 );
3989
3990 if sticky_header_excerpt_id != Some(excerpt.id) {
3991 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3992
3993 result = result.child(div().pr(editor_margins.right).child(
3994 self.render_buffer_header(
3995 excerpt, false, selected, false, jump_data, window, cx,
3996 ),
3997 ));
3998 } else {
3999 result =
4000 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
4001 }
4002 } else {
4003 result =
4004 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
4005 }
4006
4007 result.into_any()
4008 }
4009
4010 Block::Spacer { height, .. } => {
4011 Self::render_spacer_block(block_id, *height, line_height, window, cx)
4012 }
4013 };
4014
4015 // Discover the element's content height, then round up to the nearest multiple of line height.
4016 let preliminary_size = element.layout_as_root(
4017 size(available_width, AvailableSpace::MinContent),
4018 window,
4019 cx,
4020 );
4021 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
4022 let final_size = if preliminary_size.height == quantized_height {
4023 preliminary_size
4024 } else {
4025 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
4026 };
4027 let mut element_height_in_lines = ((final_size.height / line_height).ceil() as u32).max(1);
4028
4029 let effective_row_start = block_row_start.0 as i32 + *block_resize_offset;
4030 debug_assert!(effective_row_start >= 0);
4031 let mut row = DisplayRow(effective_row_start.max(0) as u32);
4032
4033 let mut x_offset = px(0.);
4034 let mut is_block = true;
4035
4036 if let BlockId::Custom(custom_block_id) = block_id
4037 && block.has_height()
4038 {
4039 if block.place_near()
4040 && let Some((x_target, line_width)) = x_position
4041 {
4042 let margin = em_width * 2;
4043 if line_width + final_size.width + margin
4044 < editor_width + editor_margins.gutter.full_width()
4045 && !row_block_types.contains_key(&(row - 1))
4046 && element_height_in_lines == 1
4047 {
4048 x_offset = line_width + margin;
4049 row = row - 1;
4050 is_block = false;
4051 element_height_in_lines = 0;
4052 row_block_types.insert(row, is_block);
4053 } else {
4054 let max_offset =
4055 editor_width + editor_margins.gutter.full_width() - final_size.width;
4056 let min_offset = (x_target + em_width - final_size.width)
4057 .max(editor_margins.gutter.full_width());
4058 x_offset = x_target.min(max_offset).max(min_offset);
4059 }
4060 };
4061 if element_height_in_lines != block.height() {
4062 *block_resize_offset += element_height_in_lines as i32 - block.height() as i32;
4063 resized_blocks.insert(custom_block_id, element_height_in_lines);
4064 }
4065 }
4066 for i in 0..element_height_in_lines {
4067 row_block_types.insert(row + i, is_block);
4068 }
4069
4070 Some((element, final_size, row, x_offset))
4071 }
4072
4073 /// The checkerboard pattern height must be an even factor of the line
4074 /// height, so that two consecutive spacer blocks can render contiguously
4075 /// without an obvious break in the pattern.
4076 fn checkerboard_size(line_height: f32, target_height: f32) -> f32 {
4077 let k_approx = line_height / (2.0 * target_height);
4078 let k_floor = (k_approx.floor() as u32).max(1);
4079 let k_ceil = (k_approx.ceil() as u32).max(1);
4080
4081 let size_floor = line_height / (2 * k_floor) as f32;
4082 let size_ceil = line_height / (2 * k_ceil) as f32;
4083
4084 if (size_floor - target_height).abs() <= (size_ceil - target_height).abs() {
4085 size_floor
4086 } else {
4087 size_ceil
4088 }
4089 }
4090
4091 pub fn render_spacer_block(
4092 block_id: BlockId,
4093 block_height: u32,
4094 line_height: Pixels,
4095 window: &mut Window,
4096 cx: &App,
4097 ) -> AnyElement {
4098 div()
4099 .id(block_id)
4100 .w_full()
4101 .h((block_height as f32) * line_height)
4102 // the checkerboard pattern is semi-transparent, so we render a
4103 // solid background to prevent indent guides peeking through
4104 .bg(cx.theme().colors().editor_background)
4105 .child(
4106 div()
4107 .size_full()
4108 .bg(checkerboard(cx.theme().colors().panel_background, {
4109 let target_size = 16.0;
4110 let scale = window.scale_factor();
4111 Self::checkerboard_size(f32::from(line_height) * scale, target_size * scale)
4112 })),
4113 )
4114 .into_any()
4115 }
4116
4117 fn render_buffer_header(
4118 &self,
4119 for_excerpt: &ExcerptInfo,
4120 is_folded: bool,
4121 is_selected: bool,
4122 is_sticky: bool,
4123 jump_data: JumpData,
4124 window: &mut Window,
4125 cx: &mut App,
4126 ) -> impl IntoElement {
4127 render_buffer_header(
4128 &self.editor,
4129 for_excerpt,
4130 is_folded,
4131 is_selected,
4132 is_sticky,
4133 jump_data,
4134 window,
4135 cx,
4136 )
4137 }
4138
4139 fn render_blocks(
4140 &self,
4141 rows: Range<DisplayRow>,
4142 snapshot: &EditorSnapshot,
4143 hitbox: &Hitbox,
4144 text_hitbox: &Hitbox,
4145 editor_width: Pixels,
4146 scroll_width: &mut Pixels,
4147 editor_margins: &EditorMargins,
4148 em_width: Pixels,
4149 text_x: Pixels,
4150 line_height: Pixels,
4151 line_layouts: &mut [LineWithInvisibles],
4152 selections: &[Selection<Point>],
4153 selected_buffer_ids: &Vec<BufferId>,
4154 latest_selection_anchors: &HashMap<BufferId, Anchor>,
4155 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4156 sticky_header_excerpt_id: Option<ExcerptId>,
4157 window: &mut Window,
4158 cx: &mut App,
4159 ) -> RenderBlocksOutput {
4160 let (fixed_blocks, non_fixed_blocks) = snapshot
4161 .blocks_in_range(rows.clone())
4162 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
4163
4164 let mut focused_block = self
4165 .editor
4166 .update(cx, |editor, _| editor.take_focused_block());
4167 let mut fixed_block_max_width = Pixels::ZERO;
4168 let mut blocks = Vec::new();
4169 let mut resized_blocks = HashMap::default();
4170 let mut row_block_types = HashMap::default();
4171 let mut block_resize_offset: i32 = 0;
4172
4173 for (row, block) in fixed_blocks {
4174 let block_id = block.id();
4175
4176 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4177 focused_block = None;
4178 }
4179
4180 if let Some((element, element_size, row, x_offset)) = self.render_block(
4181 block,
4182 AvailableSpace::MinContent,
4183 block_id,
4184 row,
4185 snapshot,
4186 text_x,
4187 &rows,
4188 line_layouts,
4189 editor_margins,
4190 line_height,
4191 em_width,
4192 text_hitbox,
4193 editor_width,
4194 scroll_width,
4195 &mut resized_blocks,
4196 &mut row_block_types,
4197 selections,
4198 selected_buffer_ids,
4199 latest_selection_anchors,
4200 is_row_soft_wrapped,
4201 sticky_header_excerpt_id,
4202 &mut block_resize_offset,
4203 window,
4204 cx,
4205 ) {
4206 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
4207 blocks.push(BlockLayout {
4208 id: block_id,
4209 x_offset,
4210 row: Some(row),
4211 element,
4212 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
4213 style: BlockStyle::Fixed,
4214 overlaps_gutter: true,
4215 is_buffer_header: block.is_buffer_header(),
4216 });
4217 }
4218 }
4219
4220 for (row, block) in non_fixed_blocks {
4221 let style = block.style();
4222 let width = match (style, block.place_near()) {
4223 (_, true) => AvailableSpace::MinContent,
4224 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
4225 (BlockStyle::Flex, _) => hitbox
4226 .size
4227 .width
4228 .max(fixed_block_max_width)
4229 .max(editor_margins.gutter.width + *scroll_width)
4230 .into(),
4231 (BlockStyle::Fixed, _) => unreachable!(),
4232 };
4233 let block_id = block.id();
4234
4235 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4236 focused_block = None;
4237 }
4238
4239 if let Some((element, element_size, row, x_offset)) = self.render_block(
4240 block,
4241 width,
4242 block_id,
4243 row,
4244 snapshot,
4245 text_x,
4246 &rows,
4247 line_layouts,
4248 editor_margins,
4249 line_height,
4250 em_width,
4251 text_hitbox,
4252 editor_width,
4253 scroll_width,
4254 &mut resized_blocks,
4255 &mut row_block_types,
4256 selections,
4257 selected_buffer_ids,
4258 latest_selection_anchors,
4259 is_row_soft_wrapped,
4260 sticky_header_excerpt_id,
4261 &mut block_resize_offset,
4262 window,
4263 cx,
4264 ) {
4265 blocks.push(BlockLayout {
4266 id: block_id,
4267 x_offset,
4268 row: Some(row),
4269 element,
4270 available_space: size(width, element_size.height.into()),
4271 style,
4272 overlaps_gutter: !block.place_near(),
4273 is_buffer_header: block.is_buffer_header(),
4274 });
4275 }
4276 }
4277
4278 if let Some(focused_block) = focused_block
4279 && let Some(focus_handle) = focused_block.focus_handle.upgrade()
4280 && focus_handle.is_focused(window)
4281 && let Some(block) = snapshot.block_for_id(focused_block.id)
4282 {
4283 let style = block.style();
4284 let width = match style {
4285 BlockStyle::Fixed => AvailableSpace::MinContent,
4286 BlockStyle::Flex => AvailableSpace::Definite(
4287 hitbox
4288 .size
4289 .width
4290 .max(fixed_block_max_width)
4291 .max(editor_margins.gutter.width + *scroll_width),
4292 ),
4293 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
4294 };
4295
4296 if let Some((element, element_size, _, x_offset)) = self.render_block(
4297 &block,
4298 width,
4299 focused_block.id,
4300 rows.end,
4301 snapshot,
4302 text_x,
4303 &rows,
4304 line_layouts,
4305 editor_margins,
4306 line_height,
4307 em_width,
4308 text_hitbox,
4309 editor_width,
4310 scroll_width,
4311 &mut resized_blocks,
4312 &mut row_block_types,
4313 selections,
4314 selected_buffer_ids,
4315 latest_selection_anchors,
4316 is_row_soft_wrapped,
4317 sticky_header_excerpt_id,
4318 &mut block_resize_offset,
4319 window,
4320 cx,
4321 ) {
4322 blocks.push(BlockLayout {
4323 id: block.id(),
4324 x_offset,
4325 row: None,
4326 element,
4327 available_space: size(width, element_size.height.into()),
4328 style,
4329 overlaps_gutter: true,
4330 is_buffer_header: block.is_buffer_header(),
4331 });
4332 }
4333 }
4334
4335 if resized_blocks.is_empty() {
4336 *scroll_width =
4337 (*scroll_width).max(fixed_block_max_width - editor_margins.gutter.width);
4338 }
4339
4340 RenderBlocksOutput {
4341 blocks,
4342 row_block_types,
4343 resized_blocks: (!resized_blocks.is_empty()).then_some(resized_blocks),
4344 }
4345 }
4346
4347 fn layout_blocks(
4348 &self,
4349 blocks: &mut Vec<BlockLayout>,
4350 hitbox: &Hitbox,
4351 line_height: Pixels,
4352 scroll_position: gpui::Point<ScrollOffset>,
4353 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4354 window: &mut Window,
4355 cx: &mut App,
4356 ) {
4357 for block in blocks {
4358 let mut origin = if let Some(row) = block.row {
4359 hitbox.origin
4360 + point(
4361 block.x_offset,
4362 Pixels::from(
4363 (row.as_f64() - scroll_position.y)
4364 * ScrollPixelOffset::from(line_height),
4365 ),
4366 )
4367 } else {
4368 // Position the block outside the visible area
4369 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
4370 };
4371
4372 if !matches!(block.style, BlockStyle::Sticky) {
4373 origin += point(Pixels::from(-scroll_pixel_position.x), Pixels::ZERO);
4374 }
4375
4376 let focus_handle =
4377 block
4378 .element
4379 .prepaint_as_root(origin, block.available_space, window, cx);
4380
4381 if let Some(focus_handle) = focus_handle {
4382 self.editor.update(cx, |editor, _cx| {
4383 editor.set_focused_block(FocusedBlock {
4384 id: block.id,
4385 focus_handle: focus_handle.downgrade(),
4386 });
4387 });
4388 }
4389 }
4390 }
4391
4392 fn layout_sticky_buffer_header(
4393 &self,
4394 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
4395 scroll_position: gpui::Point<ScrollOffset>,
4396 line_height: Pixels,
4397 right_margin: Pixels,
4398 snapshot: &EditorSnapshot,
4399 hitbox: &Hitbox,
4400 selected_buffer_ids: &Vec<BufferId>,
4401 blocks: &[BlockLayout],
4402 latest_selection_anchors: &HashMap<BufferId, Anchor>,
4403 window: &mut Window,
4404 cx: &mut App,
4405 ) -> AnyElement {
4406 let jump_data = header_jump_data(
4407 snapshot,
4408 DisplayRow(scroll_position.y as u32),
4409 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
4410 excerpt,
4411 latest_selection_anchors,
4412 );
4413
4414 let editor_bg_color = cx.theme().colors().editor_background;
4415
4416 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
4417
4418 let available_width = hitbox.bounds.size.width - right_margin;
4419
4420 let mut header = v_flex()
4421 .w_full()
4422 .relative()
4423 .child(
4424 div()
4425 .w(available_width)
4426 .h(FILE_HEADER_HEIGHT as f32 * line_height)
4427 .bg(linear_gradient(
4428 0.,
4429 linear_color_stop(editor_bg_color.opacity(0.), 0.),
4430 linear_color_stop(editor_bg_color, 0.6),
4431 ))
4432 .absolute()
4433 .top_0(),
4434 )
4435 .child(
4436 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
4437 .into_any_element(),
4438 )
4439 .into_any_element();
4440
4441 let mut origin = hitbox.origin;
4442 // Move floating header up to avoid colliding with the next buffer header.
4443 for block in blocks.iter() {
4444 if !block.is_buffer_header {
4445 continue;
4446 }
4447
4448 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position.y as u32) else {
4449 continue;
4450 };
4451
4452 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
4453 let offset = scroll_position.y - max_row as f64;
4454
4455 if offset > 0.0 {
4456 origin.y -= Pixels::from(offset * ScrollPixelOffset::from(line_height));
4457 }
4458 break;
4459 }
4460
4461 let size = size(
4462 AvailableSpace::Definite(available_width),
4463 AvailableSpace::MinContent,
4464 );
4465
4466 header.prepaint_as_root(origin, size, window, cx);
4467
4468 header
4469 }
4470
4471 fn layout_sticky_headers(
4472 &self,
4473 snapshot: &EditorSnapshot,
4474 editor_width: Pixels,
4475 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4476 line_height: Pixels,
4477 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4478 content_origin: gpui::Point<Pixels>,
4479 gutter_dimensions: &GutterDimensions,
4480 gutter_hitbox: &Hitbox,
4481 text_hitbox: &Hitbox,
4482 relative_line_numbers: RelativeLineNumbers,
4483 relative_to: Option<DisplayRow>,
4484 window: &mut Window,
4485 cx: &mut App,
4486 ) -> Option<StickyHeaders> {
4487 let show_line_numbers = snapshot
4488 .show_line_numbers
4489 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
4490
4491 let rows = Self::sticky_headers(self.editor.read(cx), snapshot);
4492
4493 let mut lines = Vec::<StickyHeaderLine>::new();
4494
4495 for StickyHeader {
4496 item,
4497 sticky_row,
4498 start_point,
4499 offset,
4500 } in rows.into_iter().rev()
4501 {
4502 let line = layout_line(
4503 sticky_row,
4504 snapshot,
4505 &self.style,
4506 editor_width,
4507 is_row_soft_wrapped,
4508 window,
4509 cx,
4510 );
4511
4512 let line_number = show_line_numbers.then(|| {
4513 let start_display_row = start_point.to_display_point(snapshot).row();
4514 let relative_number = relative_to
4515 .filter(|_| relative_line_numbers != RelativeLineNumbers::Disabled)
4516 .map(|base| {
4517 snapshot.relative_line_delta(
4518 base,
4519 start_display_row,
4520 relative_line_numbers == RelativeLineNumbers::Wrapped,
4521 )
4522 });
4523 let number = relative_number
4524 .filter(|&delta| delta != 0)
4525 .map(|delta| delta.unsigned_abs() as u32)
4526 .unwrap_or(start_point.row + 1);
4527 let color = cx.theme().colors().editor_line_number;
4528 self.shape_line_number(SharedString::from(number.to_string()), color, window)
4529 });
4530
4531 lines.push(StickyHeaderLine::new(
4532 sticky_row,
4533 line_height * offset as f32,
4534 line,
4535 line_number,
4536 item.range.start,
4537 line_height,
4538 scroll_pixel_position,
4539 content_origin,
4540 gutter_hitbox,
4541 text_hitbox,
4542 window,
4543 cx,
4544 ));
4545 }
4546
4547 lines.reverse();
4548 if lines.is_empty() {
4549 return None;
4550 }
4551
4552 Some(StickyHeaders {
4553 lines,
4554 gutter_background: cx.theme().colors().editor_gutter_background,
4555 content_background: self.style.background,
4556 gutter_right_padding: gutter_dimensions.right_padding,
4557 })
4558 }
4559
4560 pub(crate) fn sticky_headers(editor: &Editor, snapshot: &EditorSnapshot) -> Vec<StickyHeader> {
4561 let scroll_top = snapshot.scroll_position().y;
4562
4563 let mut end_rows = Vec::<DisplayRow>::new();
4564 let mut rows = Vec::<StickyHeader>::new();
4565
4566 for item in editor.sticky_headers.iter().flatten() {
4567 let start_point = item.range.start.to_point(snapshot.buffer_snapshot());
4568 let end_point = item.range.end.to_point(snapshot.buffer_snapshot());
4569
4570 let sticky_row = snapshot
4571 .display_snapshot
4572 .point_to_display_point(start_point, Bias::Left)
4573 .row();
4574 let end_row = snapshot
4575 .display_snapshot
4576 .point_to_display_point(end_point, Bias::Left)
4577 .row();
4578 let max_sticky_row = end_row.previous_row();
4579 if max_sticky_row <= sticky_row {
4580 continue;
4581 }
4582
4583 while end_rows
4584 .last()
4585 .is_some_and(|&last_end| last_end <= sticky_row)
4586 {
4587 end_rows.pop();
4588 }
4589 let depth = end_rows.len();
4590 let adjusted_scroll_top = scroll_top + depth as f64;
4591
4592 if sticky_row.as_f64() >= adjusted_scroll_top || end_row.as_f64() <= adjusted_scroll_top
4593 {
4594 continue;
4595 }
4596
4597 let max_scroll_offset = max_sticky_row.as_f64() - scroll_top;
4598 let offset = (depth as f64).min(max_scroll_offset);
4599
4600 end_rows.push(end_row);
4601 rows.push(StickyHeader {
4602 item: item.clone(),
4603 sticky_row,
4604 start_point,
4605 offset,
4606 });
4607 }
4608
4609 rows
4610 }
4611
4612 fn layout_cursor_popovers(
4613 &self,
4614 line_height: Pixels,
4615 text_hitbox: &Hitbox,
4616 content_origin: gpui::Point<Pixels>,
4617 right_margin: Pixels,
4618 start_row: DisplayRow,
4619 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4620 line_layouts: &[LineWithInvisibles],
4621 cursor: DisplayPoint,
4622 cursor_point: Point,
4623 style: &EditorStyle,
4624 window: &mut Window,
4625 cx: &mut App,
4626 ) -> Option<ContextMenuLayout> {
4627 let mut min_menu_height = Pixels::ZERO;
4628 let mut max_menu_height = Pixels::ZERO;
4629 let mut height_above_menu = Pixels::ZERO;
4630 let height_below_menu = Pixels::ZERO;
4631 let mut edit_prediction_popover_visible = false;
4632 let mut context_menu_visible = false;
4633 let context_menu_placement;
4634
4635 {
4636 let editor = self.editor.read(cx);
4637 if editor.edit_prediction_visible_in_cursor_popover(editor.has_active_edit_prediction())
4638 {
4639 height_above_menu +=
4640 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
4641 edit_prediction_popover_visible = true;
4642 }
4643
4644 if editor.context_menu_visible()
4645 && let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin()
4646 {
4647 let (min_height_in_lines, max_height_in_lines) = editor
4648 .context_menu_options
4649 .as_ref()
4650 .map_or((3, 12), |options| {
4651 (options.min_entries_visible, options.max_entries_visible)
4652 });
4653
4654 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4655 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4656 context_menu_visible = true;
4657 }
4658 context_menu_placement = editor
4659 .context_menu_options
4660 .as_ref()
4661 .and_then(|options| options.placement.clone());
4662 }
4663
4664 let visible = edit_prediction_popover_visible || context_menu_visible;
4665 if !visible {
4666 return None;
4667 }
4668
4669 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
4670 let target_position = content_origin
4671 + gpui::Point {
4672 x: cmp::max(
4673 px(0.),
4674 Pixels::from(
4675 ScrollPixelOffset::from(
4676 cursor_row_layout.x_for_index(cursor.column() as usize),
4677 ) - scroll_pixel_position.x,
4678 ),
4679 ),
4680 y: cmp::max(
4681 px(0.),
4682 Pixels::from(
4683 cursor.row().next_row().as_f64() * ScrollPixelOffset::from(line_height)
4684 - scroll_pixel_position.y,
4685 ),
4686 ),
4687 };
4688
4689 let viewport_bounds =
4690 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4691 right: -right_margin - MENU_GAP,
4692 ..Default::default()
4693 });
4694
4695 let min_height = height_above_menu + min_menu_height + height_below_menu;
4696 let max_height = height_above_menu + max_menu_height + height_below_menu;
4697 let (laid_out_popovers, y_flipped) = self.layout_popovers_above_or_below_line(
4698 target_position,
4699 line_height,
4700 min_height,
4701 max_height,
4702 context_menu_placement,
4703 text_hitbox,
4704 viewport_bounds,
4705 window,
4706 cx,
4707 |height, max_width_for_stable_x, y_flipped, window, cx| {
4708 // First layout the menu to get its size - others can be at least this wide.
4709 let context_menu = if context_menu_visible {
4710 let menu_height = if y_flipped {
4711 height - height_below_menu
4712 } else {
4713 height - height_above_menu
4714 };
4715 let mut element = self
4716 .render_context_menu(line_height, menu_height, window, cx)
4717 .expect("Visible context menu should always render.");
4718 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4719 Some((CursorPopoverType::CodeContextMenu, element, size))
4720 } else {
4721 None
4722 };
4723 let min_width = context_menu
4724 .as_ref()
4725 .map_or(px(0.), |(_, _, size)| size.width);
4726 let max_width = max_width_for_stable_x.max(
4727 context_menu
4728 .as_ref()
4729 .map_or(px(0.), |(_, _, size)| size.width),
4730 );
4731
4732 let edit_prediction = if edit_prediction_popover_visible {
4733 self.editor.update(cx, move |editor, cx| {
4734 let accept_binding = editor.accept_edit_prediction_keybind(
4735 EditPredictionGranularity::Full,
4736 window,
4737 cx,
4738 );
4739 let mut element = editor.render_edit_prediction_cursor_popover(
4740 min_width,
4741 max_width,
4742 cursor_point,
4743 style,
4744 accept_binding.keystroke(),
4745 window,
4746 cx,
4747 )?;
4748 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4749 Some((CursorPopoverType::EditPrediction, element, size))
4750 })
4751 } else {
4752 None
4753 };
4754 vec![edit_prediction, context_menu]
4755 .into_iter()
4756 .flatten()
4757 .collect::<Vec<_>>()
4758 },
4759 )?;
4760
4761 let (menu_ix, (_, menu_bounds)) = laid_out_popovers
4762 .iter()
4763 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))?;
4764 let last_ix = laid_out_popovers.len() - 1;
4765 let menu_is_last = menu_ix == last_ix;
4766 let first_popover_bounds = laid_out_popovers[0].1;
4767 let last_popover_bounds = laid_out_popovers[last_ix].1;
4768
4769 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
4770 // right, and otherwise it goes below or to the right.
4771 let mut target_bounds = Bounds::from_corners(
4772 first_popover_bounds.origin,
4773 last_popover_bounds.bottom_right(),
4774 );
4775 target_bounds.size.width = menu_bounds.size.width;
4776
4777 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
4778 // based on this is preferred for layout stability.
4779 let mut max_target_bounds = target_bounds;
4780 max_target_bounds.size.height = max_height;
4781 if y_flipped {
4782 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
4783 }
4784
4785 // Add spacing around `target_bounds` and `max_target_bounds`.
4786 let mut extend_amount = Edges::all(MENU_GAP);
4787 if y_flipped {
4788 extend_amount.bottom = line_height;
4789 } else {
4790 extend_amount.top = line_height;
4791 }
4792 let target_bounds = target_bounds.extend(extend_amount);
4793 let max_target_bounds = max_target_bounds.extend(extend_amount);
4794
4795 let must_place_above_or_below =
4796 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
4797 laid_out_popovers[menu_ix + 1..]
4798 .iter()
4799 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
4800 } else {
4801 false
4802 };
4803
4804 let aside_bounds = self.layout_context_menu_aside(
4805 y_flipped,
4806 *menu_bounds,
4807 target_bounds,
4808 max_target_bounds,
4809 max_menu_height,
4810 must_place_above_or_below,
4811 text_hitbox,
4812 viewport_bounds,
4813 window,
4814 cx,
4815 );
4816
4817 if let Some(menu_bounds) = laid_out_popovers.iter().find_map(|(popover_type, bounds)| {
4818 if matches!(popover_type, CursorPopoverType::CodeContextMenu) {
4819 Some(*bounds)
4820 } else {
4821 None
4822 }
4823 }) {
4824 let bounds = if let Some(aside_bounds) = aside_bounds {
4825 menu_bounds.union(&aside_bounds)
4826 } else {
4827 menu_bounds
4828 };
4829 return Some(ContextMenuLayout { y_flipped, bounds });
4830 }
4831
4832 None
4833 }
4834
4835 fn layout_gutter_menu(
4836 &self,
4837 line_height: Pixels,
4838 text_hitbox: &Hitbox,
4839 content_origin: gpui::Point<Pixels>,
4840 right_margin: Pixels,
4841 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4842 gutter_overshoot: Pixels,
4843 window: &mut Window,
4844 cx: &mut App,
4845 ) {
4846 let editor = self.editor.read(cx);
4847 if !editor.context_menu_visible() {
4848 return;
4849 }
4850 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
4851 editor.context_menu_origin()
4852 else {
4853 return;
4854 };
4855 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
4856 // indicator than just a plain first column of the text field.
4857 let target_position = content_origin
4858 + gpui::Point {
4859 x: -gutter_overshoot,
4860 y: Pixels::from(
4861 gutter_row.next_row().as_f64() * ScrollPixelOffset::from(line_height)
4862 - scroll_pixel_position.y,
4863 ),
4864 };
4865
4866 let (min_height_in_lines, max_height_in_lines) = editor
4867 .context_menu_options
4868 .as_ref()
4869 .map_or((3, 12), |options| {
4870 (options.min_entries_visible, options.max_entries_visible)
4871 });
4872
4873 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4874 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4875 let viewport_bounds =
4876 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4877 right: -right_margin - MENU_GAP,
4878 ..Default::default()
4879 });
4880 self.layout_popovers_above_or_below_line(
4881 target_position,
4882 line_height,
4883 min_height,
4884 max_height,
4885 editor
4886 .context_menu_options
4887 .as_ref()
4888 .and_then(|options| options.placement.clone()),
4889 text_hitbox,
4890 viewport_bounds,
4891 window,
4892 cx,
4893 move |height, _max_width_for_stable_x, _, window, cx| {
4894 let mut element = self
4895 .render_context_menu(line_height, height, window, cx)
4896 .expect("Visible context menu should always render.");
4897 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4898 vec![(CursorPopoverType::CodeContextMenu, element, size)]
4899 },
4900 );
4901 }
4902
4903 fn layout_popovers_above_or_below_line(
4904 &self,
4905 target_position: gpui::Point<Pixels>,
4906 line_height: Pixels,
4907 min_height: Pixels,
4908 max_height: Pixels,
4909 placement: Option<ContextMenuPlacement>,
4910 text_hitbox: &Hitbox,
4911 viewport_bounds: Bounds<Pixels>,
4912 window: &mut Window,
4913 cx: &mut App,
4914 make_sized_popovers: impl FnOnce(
4915 Pixels,
4916 Pixels,
4917 bool,
4918 &mut Window,
4919 &mut App,
4920 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
4921 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
4922 let text_style = TextStyleRefinement {
4923 line_height: Some(DefiniteLength::Fraction(
4924 BufferLineHeight::Comfortable.value(),
4925 )),
4926 ..Default::default()
4927 };
4928 window.with_text_style(Some(text_style), |window| {
4929 // If the max height won't fit below and there is more space above, put it above the line.
4930 let bottom_y_when_flipped = target_position.y - line_height;
4931 let available_above = bottom_y_when_flipped - text_hitbox.top();
4932 let available_below = text_hitbox.bottom() - target_position.y;
4933 let y_overflows_below = max_height > available_below;
4934 let mut y_flipped = match placement {
4935 Some(ContextMenuPlacement::Above) => true,
4936 Some(ContextMenuPlacement::Below) => false,
4937 None => y_overflows_below && available_above > available_below,
4938 };
4939 let mut height = cmp::min(
4940 max_height,
4941 if y_flipped {
4942 available_above
4943 } else {
4944 available_below
4945 },
4946 );
4947
4948 // If the min height doesn't fit within text bounds, instead fit within the window.
4949 if height < min_height {
4950 let available_above = bottom_y_when_flipped;
4951 let available_below = viewport_bounds.bottom() - target_position.y;
4952 let (y_flipped_override, height_override) = match placement {
4953 Some(ContextMenuPlacement::Above) => {
4954 (true, cmp::min(available_above, min_height))
4955 }
4956 Some(ContextMenuPlacement::Below) => {
4957 (false, cmp::min(available_below, min_height))
4958 }
4959 None => {
4960 if available_below > min_height {
4961 (false, min_height)
4962 } else if available_above > min_height {
4963 (true, min_height)
4964 } else if available_above > available_below {
4965 (true, available_above)
4966 } else {
4967 (false, available_below)
4968 }
4969 }
4970 };
4971 y_flipped = y_flipped_override;
4972 height = height_override;
4973 }
4974
4975 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
4976
4977 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
4978 // for very narrow windows.
4979 let popovers =
4980 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
4981 if popovers.is_empty() {
4982 return None;
4983 }
4984
4985 let max_width = popovers
4986 .iter()
4987 .map(|(_, _, size)| size.width)
4988 .max()
4989 .unwrap_or_default();
4990
4991 let mut current_position = gpui::Point {
4992 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
4993 // overflow. Include space for the scrollbar.
4994 x: target_position
4995 .x
4996 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
4997 y: if y_flipped {
4998 bottom_y_when_flipped
4999 } else {
5000 target_position.y
5001 },
5002 };
5003
5004 let mut laid_out_popovers = popovers
5005 .into_iter()
5006 .map(|(popover_type, element, size)| {
5007 if y_flipped {
5008 current_position.y -= size.height;
5009 }
5010 let position = current_position;
5011 window.defer_draw(element, current_position, 1);
5012 if !y_flipped {
5013 current_position.y += size.height + MENU_GAP;
5014 } else {
5015 current_position.y -= MENU_GAP;
5016 }
5017 (popover_type, Bounds::new(position, size))
5018 })
5019 .collect::<Vec<_>>();
5020
5021 if y_flipped {
5022 laid_out_popovers.reverse();
5023 }
5024
5025 Some((laid_out_popovers, y_flipped))
5026 })
5027 }
5028
5029 fn layout_context_menu_aside(
5030 &self,
5031 y_flipped: bool,
5032 menu_bounds: Bounds<Pixels>,
5033 target_bounds: Bounds<Pixels>,
5034 max_target_bounds: Bounds<Pixels>,
5035 max_height: Pixels,
5036 must_place_above_or_below: bool,
5037 text_hitbox: &Hitbox,
5038 viewport_bounds: Bounds<Pixels>,
5039 window: &mut Window,
5040 cx: &mut App,
5041 ) -> Option<Bounds<Pixels>> {
5042 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
5043 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
5044 && !must_place_above_or_below
5045 {
5046 let max_width = cmp::min(
5047 available_within_viewport.right - px(1.),
5048 MENU_ASIDE_MAX_WIDTH,
5049 );
5050 let mut aside = self.render_context_menu_aside(
5051 size(max_width, max_height - POPOVER_Y_PADDING),
5052 window,
5053 cx,
5054 )?;
5055 let size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5056 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
5057 Some((aside, right_position, size))
5058 } else {
5059 let max_size = size(
5060 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
5061 // won't be needed here.
5062 cmp::min(
5063 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
5064 viewport_bounds.right(),
5065 ),
5066 cmp::min(
5067 max_height,
5068 cmp::max(
5069 available_within_viewport.top,
5070 available_within_viewport.bottom,
5071 ),
5072 ) - POPOVER_Y_PADDING,
5073 );
5074 let mut aside = self.render_context_menu_aside(max_size, window, cx)?;
5075 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5076
5077 let top_position = point(
5078 menu_bounds.origin.x,
5079 target_bounds.top() - actual_size.height,
5080 );
5081 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
5082
5083 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
5084 // Prefer to fit on the same side of the line as the menu, then on the other side of
5085 // the line.
5086 if !y_flipped && wanted.height < available.bottom {
5087 Some(bottom_position)
5088 } else if !y_flipped && wanted.height < available.top {
5089 Some(top_position)
5090 } else if y_flipped && wanted.height < available.top {
5091 Some(top_position)
5092 } else if y_flipped && wanted.height < available.bottom {
5093 Some(bottom_position)
5094 } else {
5095 None
5096 }
5097 };
5098
5099 // Prefer choosing a direction using max sizes rather than actual size for stability.
5100 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
5101 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
5102 let aside_position = fit_within(available_within_text, wanted)
5103 // Fallback: fit max size in window.
5104 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
5105 // Fallback: fit actual size in window.
5106 .or_else(|| fit_within(available_within_viewport, actual_size));
5107
5108 aside_position.map(|position| (aside, position, actual_size))
5109 };
5110
5111 // Skip drawing if it doesn't fit anywhere.
5112 if let Some((aside, position, size)) = positioned_aside {
5113 let aside_bounds = Bounds::new(position, size);
5114 window.defer_draw(aside, position, 2);
5115 return Some(aside_bounds);
5116 }
5117
5118 None
5119 }
5120
5121 fn render_context_menu(
5122 &self,
5123 line_height: Pixels,
5124 height: Pixels,
5125 window: &mut Window,
5126 cx: &mut App,
5127 ) -> Option<AnyElement> {
5128 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
5129 self.editor.update(cx, |editor, cx| {
5130 editor.render_context_menu(max_height_in_lines, window, cx)
5131 })
5132 }
5133
5134 fn render_context_menu_aside(
5135 &self,
5136 max_size: Size<Pixels>,
5137 window: &mut Window,
5138 cx: &mut App,
5139 ) -> Option<AnyElement> {
5140 if max_size.width < px(100.) || max_size.height < px(12.) {
5141 None
5142 } else {
5143 self.editor.update(cx, |editor, cx| {
5144 editor.render_context_menu_aside(max_size, window, cx)
5145 })
5146 }
5147 }
5148
5149 fn layout_mouse_context_menu(
5150 &self,
5151 editor_snapshot: &EditorSnapshot,
5152 visible_range: Range<DisplayRow>,
5153 content_origin: gpui::Point<Pixels>,
5154 window: &mut Window,
5155 cx: &mut App,
5156 ) -> Option<AnyElement> {
5157 let position = self.editor.update(cx, |editor, cx| {
5158 let visible_start_point = editor.display_to_pixel_point(
5159 DisplayPoint::new(visible_range.start, 0),
5160 editor_snapshot,
5161 window,
5162 cx,
5163 )?;
5164 let visible_end_point = editor.display_to_pixel_point(
5165 DisplayPoint::new(visible_range.end, 0),
5166 editor_snapshot,
5167 window,
5168 cx,
5169 )?;
5170
5171 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5172 let (source_display_point, position) = match mouse_context_menu.position {
5173 MenuPosition::PinnedToScreen(point) => (None, point),
5174 MenuPosition::PinnedToEditor { source, offset } => {
5175 let source_display_point = source.to_display_point(editor_snapshot);
5176 let source_point =
5177 editor.to_pixel_point(source, editor_snapshot, window, cx)?;
5178 let position = content_origin + source_point + offset;
5179 (Some(source_display_point), position)
5180 }
5181 };
5182
5183 let source_included = source_display_point.is_none_or(|source_display_point| {
5184 visible_range
5185 .to_inclusive()
5186 .contains(&source_display_point.row())
5187 });
5188 let position_included =
5189 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
5190 if !source_included && !position_included {
5191 None
5192 } else {
5193 Some(position)
5194 }
5195 })?;
5196
5197 let text_style = TextStyleRefinement {
5198 line_height: Some(DefiniteLength::Fraction(
5199 BufferLineHeight::Comfortable.value(),
5200 )),
5201 ..Default::default()
5202 };
5203 window.with_text_style(Some(text_style), |window| {
5204 let mut element = self.editor.read_with(cx, |editor, _| {
5205 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5206 let context_menu = mouse_context_menu.context_menu.clone();
5207
5208 Some(
5209 deferred(
5210 anchored()
5211 .position(position)
5212 .child(context_menu)
5213 .anchor(Corner::TopLeft)
5214 .snap_to_window_with_margin(px(8.)),
5215 )
5216 .with_priority(1)
5217 .into_any(),
5218 )
5219 })?;
5220
5221 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
5222 Some(element)
5223 })
5224 }
5225
5226 fn layout_hover_popovers(
5227 &self,
5228 snapshot: &EditorSnapshot,
5229 hitbox: &Hitbox,
5230 visible_display_row_range: Range<DisplayRow>,
5231 content_origin: gpui::Point<Pixels>,
5232 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5233 line_layouts: &[LineWithInvisibles],
5234 line_height: Pixels,
5235 em_width: Pixels,
5236 context_menu_layout: Option<ContextMenuLayout>,
5237 window: &mut Window,
5238 cx: &mut App,
5239 ) {
5240 struct MeasuredHoverPopover {
5241 element: AnyElement,
5242 size: Size<Pixels>,
5243 horizontal_offset: Pixels,
5244 }
5245
5246 let max_size = size(
5247 (120. * em_width) // Default size
5248 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5249 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5250 (16. * line_height) // Default size
5251 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5252 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5253 );
5254
5255 // Don't show hover popovers when context menu is open to avoid overlap
5256 let has_context_menu = self.editor.read(cx).mouse_context_menu.is_some();
5257 if has_context_menu {
5258 return;
5259 }
5260
5261 let hover_popovers = self.editor.update(cx, |editor, cx| {
5262 editor.hover_state.render(
5263 snapshot,
5264 visible_display_row_range.clone(),
5265 max_size,
5266 &editor.text_layout_details(window, cx),
5267 window,
5268 cx,
5269 )
5270 });
5271 let Some((popover_position, hover_popovers)) = hover_popovers else {
5272 return;
5273 };
5274
5275 // This is safe because we check on layout whether the required row is available
5276 let hovered_row_layout = &line_layouts[popover_position
5277 .row()
5278 .minus(visible_display_row_range.start)
5279 as usize];
5280
5281 // Compute Hovered Point
5282 let x = hovered_row_layout.x_for_index(popover_position.column() as usize)
5283 - Pixels::from(scroll_pixel_position.x);
5284 let y = Pixels::from(
5285 popover_position.row().as_f64() * ScrollPixelOffset::from(line_height)
5286 - scroll_pixel_position.y,
5287 );
5288 let hovered_point = content_origin + point(x, y);
5289
5290 let mut overall_height = Pixels::ZERO;
5291 let mut measured_hover_popovers = Vec::new();
5292 for (position, mut hover_popover) in hover_popovers.into_iter().with_position() {
5293 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
5294 let horizontal_offset =
5295 (hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
5296 .min(Pixels::ZERO);
5297 match position {
5298 itertools::Position::Middle | itertools::Position::Last => {
5299 overall_height += HOVER_POPOVER_GAP
5300 }
5301 _ => {}
5302 }
5303 overall_height += size.height;
5304 measured_hover_popovers.push(MeasuredHoverPopover {
5305 element: hover_popover,
5306 size,
5307 horizontal_offset,
5308 });
5309 }
5310
5311 fn draw_occluder(
5312 width: Pixels,
5313 origin: gpui::Point<Pixels>,
5314 window: &mut Window,
5315 cx: &mut App,
5316 ) {
5317 let mut occlusion = div()
5318 .size_full()
5319 .occlude()
5320 .on_mouse_move(|_, _, cx| cx.stop_propagation())
5321 .into_any_element();
5322 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
5323 window.defer_draw(occlusion, origin, 2);
5324 }
5325
5326 fn place_popovers_above(
5327 hovered_point: gpui::Point<Pixels>,
5328 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5329 window: &mut Window,
5330 cx: &mut App,
5331 ) {
5332 let mut current_y = hovered_point.y;
5333 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5334 let size = popover.size;
5335 let popover_origin = point(
5336 hovered_point.x + popover.horizontal_offset,
5337 current_y - size.height,
5338 );
5339
5340 window.defer_draw(popover.element, popover_origin, 2);
5341 if position != itertools::Position::Last {
5342 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
5343 draw_occluder(size.width, origin, window, cx);
5344 }
5345
5346 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5347 }
5348 }
5349
5350 fn place_popovers_below(
5351 hovered_point: gpui::Point<Pixels>,
5352 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5353 line_height: Pixels,
5354 window: &mut Window,
5355 cx: &mut App,
5356 ) {
5357 let mut current_y = hovered_point.y + line_height;
5358 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5359 let size = popover.size;
5360 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5361
5362 window.defer_draw(popover.element, popover_origin, 2);
5363 if position != itertools::Position::Last {
5364 let origin = point(popover_origin.x, popover_origin.y + size.height);
5365 draw_occluder(size.width, origin, window, cx);
5366 }
5367
5368 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5369 }
5370 }
5371
5372 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5373 context_menu_layout
5374 .as_ref()
5375 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5376 };
5377
5378 let can_place_above = {
5379 let mut bounds_above = Vec::new();
5380 let mut current_y = hovered_point.y;
5381 for popover in &measured_hover_popovers {
5382 let size = popover.size;
5383 let popover_origin = point(
5384 hovered_point.x + popover.horizontal_offset,
5385 current_y - size.height,
5386 );
5387 bounds_above.push(Bounds::new(popover_origin, size));
5388 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5389 }
5390 bounds_above
5391 .iter()
5392 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5393 };
5394
5395 let can_place_below = || {
5396 let mut bounds_below = Vec::new();
5397 let mut current_y = hovered_point.y + line_height;
5398 for popover in &measured_hover_popovers {
5399 let size = popover.size;
5400 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5401 bounds_below.push(Bounds::new(popover_origin, size));
5402 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5403 }
5404 bounds_below
5405 .iter()
5406 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5407 };
5408
5409 if can_place_above {
5410 // try placing above hovered point
5411 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5412 } else if can_place_below() {
5413 // try placing below hovered point
5414 place_popovers_below(
5415 hovered_point,
5416 measured_hover_popovers,
5417 line_height,
5418 window,
5419 cx,
5420 );
5421 } else {
5422 // try to place popovers around the context menu
5423 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5424 let total_width = measured_hover_popovers
5425 .iter()
5426 .map(|p| p.size.width)
5427 .max()
5428 .unwrap_or(Pixels::ZERO);
5429 let y_for_horizontal_positioning = if menu.y_flipped {
5430 menu.bounds.bottom() - overall_height
5431 } else {
5432 menu.bounds.top()
5433 };
5434 let possible_origins = vec![
5435 // left of context menu
5436 point(
5437 menu.bounds.left() - total_width - HOVER_POPOVER_GAP,
5438 y_for_horizontal_positioning,
5439 ),
5440 // right of context menu
5441 point(
5442 menu.bounds.right() + HOVER_POPOVER_GAP,
5443 y_for_horizontal_positioning,
5444 ),
5445 // top of context menu
5446 point(
5447 menu.bounds.left(),
5448 menu.bounds.top() - overall_height - HOVER_POPOVER_GAP,
5449 ),
5450 // bottom of context menu
5451 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5452 ];
5453 possible_origins.into_iter().find(|&origin| {
5454 Bounds::new(origin, size(total_width, overall_height))
5455 .is_contained_within(hitbox)
5456 })
5457 });
5458 if let Some(origin) = origin_surrounding_menu {
5459 let mut current_y = origin.y;
5460 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5461 let size = popover.size;
5462 let popover_origin = point(origin.x, current_y);
5463
5464 window.defer_draw(popover.element, popover_origin, 2);
5465 if position != itertools::Position::Last {
5466 let origin = point(popover_origin.x, popover_origin.y + size.height);
5467 draw_occluder(size.width, origin, window, cx);
5468 }
5469
5470 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5471 }
5472 } else {
5473 // fallback to existing above/below cursor logic
5474 // this might overlap menu or overflow in rare case
5475 if can_place_above {
5476 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5477 } else {
5478 place_popovers_below(
5479 hovered_point,
5480 measured_hover_popovers,
5481 line_height,
5482 window,
5483 cx,
5484 );
5485 }
5486 }
5487 }
5488 }
5489
5490 fn layout_word_diff_highlights(
5491 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5492 row_infos: &[RowInfo],
5493 start_row: DisplayRow,
5494 snapshot: &EditorSnapshot,
5495 highlighted_ranges: &mut Vec<(Range<DisplayPoint>, Hsla)>,
5496 cx: &mut App,
5497 ) {
5498 let colors = cx.theme().colors();
5499
5500 let word_highlights = display_hunks
5501 .into_iter()
5502 .filter_map(|(hunk, _)| match hunk {
5503 DisplayDiffHunk::Unfolded {
5504 word_diffs, status, ..
5505 } => Some((word_diffs, status)),
5506 _ => None,
5507 })
5508 .filter(|(_, status)| status.is_modified())
5509 .flat_map(|(word_diffs, _)| word_diffs)
5510 .flat_map(|word_diff| {
5511 let display_ranges = snapshot
5512 .display_snapshot
5513 .isomorphic_display_point_ranges_for_buffer_range(
5514 word_diff.start..word_diff.end,
5515 );
5516
5517 display_ranges.into_iter().filter_map(|range| {
5518 let start_row_offset = range.start.row().0.saturating_sub(start_row.0) as usize;
5519
5520 let diff_status = row_infos
5521 .get(start_row_offset)
5522 .and_then(|row_info| row_info.diff_status)?;
5523
5524 let background_color = match diff_status.kind {
5525 DiffHunkStatusKind::Added => colors.version_control_word_added,
5526 DiffHunkStatusKind::Deleted => colors.version_control_word_deleted,
5527 DiffHunkStatusKind::Modified => {
5528 debug_panic!("modified diff status for row info");
5529 return None;
5530 }
5531 };
5532
5533 Some((range, background_color))
5534 })
5535 });
5536
5537 highlighted_ranges.extend(word_highlights);
5538 }
5539
5540 fn layout_diff_hunk_controls(
5541 &self,
5542 row_range: Range<DisplayRow>,
5543 row_infos: &[RowInfo],
5544 text_hitbox: &Hitbox,
5545 newest_cursor_position: Option<DisplayPoint>,
5546 line_height: Pixels,
5547 right_margin: Pixels,
5548 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5549 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5550 highlighted_rows: &BTreeMap<DisplayRow, LineHighlight>,
5551 editor: Entity<Editor>,
5552 window: &mut Window,
5553 cx: &mut App,
5554 ) -> (Vec<AnyElement>, Vec<(DisplayRow, Bounds<Pixels>)>) {
5555 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
5556 let hovered_diff_hunk_row = editor.read(cx).hovered_diff_hunk_row;
5557
5558 let mut controls = vec![];
5559 let mut control_bounds = vec![];
5560
5561 let active_positions = [
5562 hovered_diff_hunk_row.map(|row| DisplayPoint::new(row, 0)),
5563 newest_cursor_position,
5564 ];
5565
5566 for (hunk, _) in display_hunks {
5567 if let DisplayDiffHunk::Unfolded {
5568 display_row_range,
5569 multi_buffer_range,
5570 status,
5571 is_created_file,
5572 ..
5573 } = &hunk
5574 {
5575 if display_row_range.start < row_range.start
5576 || display_row_range.start >= row_range.end
5577 {
5578 continue;
5579 }
5580 if highlighted_rows
5581 .get(&display_row_range.start)
5582 .and_then(|highlight| highlight.type_id)
5583 .is_some_and(|type_id| {
5584 [
5585 TypeId::of::<ConflictsOuter>(),
5586 TypeId::of::<ConflictsOursMarker>(),
5587 TypeId::of::<ConflictsOurs>(),
5588 TypeId::of::<ConflictsTheirs>(),
5589 TypeId::of::<ConflictsTheirsMarker>(),
5590 ]
5591 .contains(&type_id)
5592 })
5593 {
5594 continue;
5595 }
5596 let row_ix = (display_row_range.start - row_range.start).0 as usize;
5597 if row_infos[row_ix].diff_status.is_none() {
5598 continue;
5599 }
5600
5601 if active_positions
5602 .iter()
5603 .any(|p| p.is_some_and(|p| display_row_range.contains(&p.row())))
5604 {
5605 let y = (display_row_range.start.as_f64()
5606 * ScrollPixelOffset::from(line_height)
5607 + ScrollPixelOffset::from(text_hitbox.bounds.top())
5608 - scroll_pixel_position.y)
5609 .into();
5610
5611 let mut element = render_diff_hunk_controls(
5612 display_row_range.start.0,
5613 status,
5614 multi_buffer_range.clone(),
5615 *is_created_file,
5616 line_height,
5617 &editor,
5618 window,
5619 cx,
5620 );
5621 let size =
5622 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
5623
5624 let x = text_hitbox.bounds.right() - right_margin - px(10.) - size.width;
5625
5626 if x < text_hitbox.bounds.left() {
5627 continue;
5628 }
5629
5630 let bounds = Bounds::new(gpui::Point::new(x, y), size);
5631 control_bounds.push((display_row_range.start, bounds));
5632
5633 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
5634 element.prepaint(window, cx)
5635 });
5636 controls.push(element);
5637 }
5638 }
5639 }
5640
5641 (controls, control_bounds)
5642 }
5643
5644 fn layout_signature_help(
5645 &self,
5646 hitbox: &Hitbox,
5647 content_origin: gpui::Point<Pixels>,
5648 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5649 newest_selection_head: Option<DisplayPoint>,
5650 start_row: DisplayRow,
5651 line_layouts: &[LineWithInvisibles],
5652 line_height: Pixels,
5653 em_width: Pixels,
5654 context_menu_layout: Option<ContextMenuLayout>,
5655 window: &mut Window,
5656 cx: &mut App,
5657 ) {
5658 if !self.editor.focus_handle(cx).is_focused(window) {
5659 return;
5660 }
5661 let Some(newest_selection_head) = newest_selection_head else {
5662 return;
5663 };
5664
5665 let max_size = size(
5666 (120. * em_width) // Default size
5667 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5668 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5669 (16. * line_height) // Default size
5670 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5671 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5672 );
5673
5674 let maybe_element = self.editor.update(cx, |editor, cx| {
5675 if let Some(popover) = editor.signature_help_state.popover_mut() {
5676 let element = popover.render(max_size, window, cx);
5677 Some(element)
5678 } else {
5679 None
5680 }
5681 });
5682 let Some(mut element) = maybe_element else {
5683 return;
5684 };
5685
5686 let selection_row = newest_selection_head.row();
5687 let Some(cursor_row_layout) = (selection_row >= start_row)
5688 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
5689 .flatten()
5690 else {
5691 return;
5692 };
5693
5694 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
5695 - Pixels::from(scroll_pixel_position.x);
5696 let target_y = Pixels::from(
5697 selection_row.as_f64() * ScrollPixelOffset::from(line_height) - scroll_pixel_position.y,
5698 );
5699 let target_point = content_origin + point(target_x, target_y);
5700
5701 let actual_size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
5702
5703 let (popover_bounds_above, popover_bounds_below) = {
5704 let horizontal_offset = (hitbox.top_right().x
5705 - POPOVER_RIGHT_OFFSET
5706 - (target_point.x + actual_size.width))
5707 .min(Pixels::ZERO);
5708 let initial_x = target_point.x + horizontal_offset;
5709 (
5710 Bounds::new(
5711 point(initial_x, target_point.y - actual_size.height),
5712 actual_size,
5713 ),
5714 Bounds::new(
5715 point(initial_x, target_point.y + line_height + HOVER_POPOVER_GAP),
5716 actual_size,
5717 ),
5718 )
5719 };
5720
5721 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5722 context_menu_layout
5723 .as_ref()
5724 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5725 };
5726
5727 let final_origin = if popover_bounds_above.is_contained_within(hitbox)
5728 && !intersects_menu(popover_bounds_above)
5729 {
5730 // try placing above cursor
5731 popover_bounds_above.origin
5732 } else if popover_bounds_below.is_contained_within(hitbox)
5733 && !intersects_menu(popover_bounds_below)
5734 {
5735 // try placing below cursor
5736 popover_bounds_below.origin
5737 } else {
5738 // try surrounding context menu if exists
5739 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5740 let y_for_horizontal_positioning = if menu.y_flipped {
5741 menu.bounds.bottom() - actual_size.height
5742 } else {
5743 menu.bounds.top()
5744 };
5745 let possible_origins = vec![
5746 // left of context menu
5747 point(
5748 menu.bounds.left() - actual_size.width - HOVER_POPOVER_GAP,
5749 y_for_horizontal_positioning,
5750 ),
5751 // right of context menu
5752 point(
5753 menu.bounds.right() + HOVER_POPOVER_GAP,
5754 y_for_horizontal_positioning,
5755 ),
5756 // top of context menu
5757 point(
5758 menu.bounds.left(),
5759 menu.bounds.top() - actual_size.height - HOVER_POPOVER_GAP,
5760 ),
5761 // bottom of context menu
5762 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5763 ];
5764 possible_origins
5765 .into_iter()
5766 .find(|&origin| Bounds::new(origin, actual_size).is_contained_within(hitbox))
5767 });
5768 origin_surrounding_menu.unwrap_or_else(|| {
5769 // fallback to existing above/below cursor logic
5770 // this might overlap menu or overflow in rare case
5771 if popover_bounds_above.is_contained_within(hitbox) {
5772 popover_bounds_above.origin
5773 } else {
5774 popover_bounds_below.origin
5775 }
5776 })
5777 };
5778
5779 window.defer_draw(element, final_origin, 2);
5780 }
5781
5782 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5783 window.paint_layer(layout.hitbox.bounds, |window| {
5784 let scroll_top = layout.position_map.snapshot.scroll_position().y;
5785 let gutter_bg = cx.theme().colors().editor_gutter_background;
5786 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
5787 window.paint_quad(fill(
5788 layout.position_map.text_hitbox.bounds,
5789 self.style.background,
5790 ));
5791
5792 if matches!(
5793 layout.mode,
5794 EditorMode::Full { .. } | EditorMode::Minimap { .. }
5795 ) {
5796 let show_active_line_background = match layout.mode {
5797 EditorMode::Full {
5798 show_active_line_background,
5799 ..
5800 } => show_active_line_background,
5801 EditorMode::Minimap { .. } => true,
5802 _ => false,
5803 };
5804 let mut active_rows = layout.active_rows.iter().peekable();
5805 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
5806 let mut end_row = start_row.0;
5807 while active_rows
5808 .peek()
5809 .is_some_and(|(active_row, has_selection)| {
5810 active_row.0 == end_row + 1
5811 && has_selection.selection == contains_non_empty_selection.selection
5812 })
5813 {
5814 active_rows.next().unwrap();
5815 end_row += 1;
5816 }
5817
5818 if show_active_line_background && !contains_non_empty_selection.selection {
5819 let highlight_h_range =
5820 match layout.position_map.snapshot.current_line_highlight {
5821 CurrentLineHighlight::Gutter => Some(Range {
5822 start: layout.hitbox.left(),
5823 end: layout.gutter_hitbox.right(),
5824 }),
5825 CurrentLineHighlight::Line => Some(Range {
5826 start: layout.position_map.text_hitbox.bounds.left(),
5827 end: layout.position_map.text_hitbox.bounds.right(),
5828 }),
5829 CurrentLineHighlight::All => Some(Range {
5830 start: layout.hitbox.left(),
5831 end: layout.hitbox.right(),
5832 }),
5833 CurrentLineHighlight::None => None,
5834 };
5835 if let Some(range) = highlight_h_range {
5836 let active_line_bg = cx.theme().colors().editor_active_line_background;
5837 let bounds = Bounds {
5838 origin: point(
5839 range.start,
5840 layout.hitbox.origin.y
5841 + Pixels::from(
5842 (start_row.as_f64() - scroll_top)
5843 * ScrollPixelOffset::from(
5844 layout.position_map.line_height,
5845 ),
5846 ),
5847 ),
5848 size: size(
5849 range.end - range.start,
5850 layout.position_map.line_height
5851 * (end_row - start_row.0 + 1) as f32,
5852 ),
5853 };
5854 window.paint_quad(fill(bounds, active_line_bg));
5855 }
5856 }
5857 }
5858
5859 let mut paint_highlight = |highlight_row_start: DisplayRow,
5860 highlight_row_end: DisplayRow,
5861 highlight: crate::LineHighlight,
5862 edges| {
5863 let mut origin_x = layout.hitbox.left();
5864 let mut width = layout.hitbox.size.width;
5865 if !highlight.include_gutter {
5866 origin_x += layout.gutter_hitbox.size.width;
5867 width -= layout.gutter_hitbox.size.width;
5868 }
5869
5870 let origin = point(
5871 origin_x,
5872 layout.hitbox.origin.y
5873 + Pixels::from(
5874 (highlight_row_start.as_f64() - scroll_top)
5875 * ScrollPixelOffset::from(layout.position_map.line_height),
5876 ),
5877 );
5878 let size = size(
5879 width,
5880 layout.position_map.line_height
5881 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
5882 );
5883 let mut quad = fill(Bounds { origin, size }, highlight.background);
5884 if let Some(border_color) = highlight.border {
5885 quad.border_color = border_color;
5886 quad.border_widths = edges
5887 }
5888 window.paint_quad(quad);
5889 };
5890
5891 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
5892 None;
5893 for (&new_row, &new_background) in &layout.highlighted_rows {
5894 match &mut current_paint {
5895 &mut Some((current_background, ref mut current_range, mut edges)) => {
5896 let new_range_started = current_background != new_background
5897 || current_range.end.next_row() != new_row;
5898 if new_range_started {
5899 if current_range.end.next_row() == new_row {
5900 edges.bottom = px(0.);
5901 };
5902 paint_highlight(
5903 current_range.start,
5904 current_range.end,
5905 current_background,
5906 edges,
5907 );
5908 let edges = Edges {
5909 top: if current_range.end.next_row() != new_row {
5910 px(1.)
5911 } else {
5912 px(0.)
5913 },
5914 bottom: px(1.),
5915 ..Default::default()
5916 };
5917 current_paint = Some((new_background, new_row..new_row, edges));
5918 continue;
5919 } else {
5920 current_range.end = current_range.end.next_row();
5921 }
5922 }
5923 None => {
5924 let edges = Edges {
5925 top: px(1.),
5926 bottom: px(1.),
5927 ..Default::default()
5928 };
5929 current_paint = Some((new_background, new_row..new_row, edges))
5930 }
5931 };
5932 }
5933 if let Some((color, range, edges)) = current_paint {
5934 paint_highlight(range.start, range.end, color, edges);
5935 }
5936
5937 for (guide_x, active) in layout.wrap_guides.iter() {
5938 let color = if *active {
5939 cx.theme().colors().editor_active_wrap_guide
5940 } else {
5941 cx.theme().colors().editor_wrap_guide
5942 };
5943 window.paint_quad(fill(
5944 Bounds {
5945 origin: point(*guide_x, layout.position_map.text_hitbox.origin.y),
5946 size: size(px(1.), layout.position_map.text_hitbox.size.height),
5947 },
5948 color,
5949 ));
5950 }
5951 }
5952 })
5953 }
5954
5955 fn paint_indent_guides(
5956 &mut self,
5957 layout: &mut EditorLayout,
5958 window: &mut Window,
5959 cx: &mut App,
5960 ) {
5961 let Some(indent_guides) = &layout.indent_guides else {
5962 return;
5963 };
5964
5965 let faded_color = |color: Hsla, alpha: f32| {
5966 let mut faded = color;
5967 faded.a = alpha;
5968 faded
5969 };
5970
5971 for indent_guide in indent_guides {
5972 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
5973 let settings = &indent_guide.settings;
5974
5975 // TODO fixed for now, expose them through themes later
5976 const INDENT_AWARE_ALPHA: f32 = 0.2;
5977 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
5978 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
5979 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
5980
5981 let line_color = match (settings.coloring, indent_guide.active) {
5982 (IndentGuideColoring::Disabled, _) => None,
5983 (IndentGuideColoring::Fixed, false) => {
5984 Some(cx.theme().colors().editor_indent_guide)
5985 }
5986 (IndentGuideColoring::Fixed, true) => {
5987 Some(cx.theme().colors().editor_indent_guide_active)
5988 }
5989 (IndentGuideColoring::IndentAware, false) => {
5990 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
5991 }
5992 (IndentGuideColoring::IndentAware, true) => {
5993 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
5994 }
5995 };
5996
5997 let background_color = match (settings.background_coloring, indent_guide.active) {
5998 (IndentGuideBackgroundColoring::Disabled, _) => None,
5999 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
6000 indent_accent_colors,
6001 INDENT_AWARE_BACKGROUND_ALPHA,
6002 )),
6003 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
6004 indent_accent_colors,
6005 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
6006 )),
6007 };
6008
6009 let requested_line_width = if indent_guide.active {
6010 settings.active_line_width
6011 } else {
6012 settings.line_width
6013 }
6014 .clamp(1, 10);
6015 let mut line_indicator_width = 0.;
6016 if let Some(color) = line_color {
6017 window.paint_quad(fill(
6018 Bounds {
6019 origin: indent_guide.origin,
6020 size: size(px(requested_line_width as f32), indent_guide.length),
6021 },
6022 color,
6023 ));
6024 line_indicator_width = requested_line_width as f32;
6025 }
6026
6027 if let Some(color) = background_color {
6028 let width = indent_guide.single_indent_width - px(line_indicator_width);
6029 window.paint_quad(fill(
6030 Bounds {
6031 origin: point(
6032 indent_guide.origin.x + px(line_indicator_width),
6033 indent_guide.origin.y,
6034 ),
6035 size: size(width, indent_guide.length),
6036 },
6037 color,
6038 ));
6039 }
6040 }
6041 }
6042
6043 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6044 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
6045
6046 let line_height = layout.position_map.line_height;
6047 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
6048
6049 for line_layout in layout.line_numbers.values() {
6050 for LineNumberSegment {
6051 shaped_line,
6052 hitbox,
6053 } in &line_layout.segments
6054 {
6055 let Some(hitbox) = hitbox else {
6056 continue;
6057 };
6058
6059 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
6060 let color = cx.theme().colors().editor_hover_line_number;
6061
6062 let line = self.shape_line_number(shaped_line.text.clone(), color, window);
6063 line.paint(
6064 hitbox.origin,
6065 line_height,
6066 TextAlign::Left,
6067 None,
6068 window,
6069 cx,
6070 )
6071 .log_err()
6072 } else {
6073 shaped_line
6074 .paint(
6075 hitbox.origin,
6076 line_height,
6077 TextAlign::Left,
6078 None,
6079 window,
6080 cx,
6081 )
6082 .log_err()
6083 }) else {
6084 continue;
6085 };
6086
6087 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
6088 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
6089 if is_singleton {
6090 window.set_cursor_style(CursorStyle::IBeam, hitbox);
6091 } else {
6092 window.set_cursor_style(CursorStyle::PointingHand, hitbox);
6093 }
6094 }
6095 }
6096 }
6097
6098 fn paint_gutter_diff_hunks(
6099 layout: &mut EditorLayout,
6100 split_side: Option<SplitSide>,
6101 window: &mut Window,
6102 cx: &mut App,
6103 ) {
6104 if layout.display_hunks.is_empty() {
6105 return;
6106 }
6107
6108 let line_height = layout.position_map.line_height;
6109 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6110 for (hunk, hitbox) in &layout.display_hunks {
6111 let hunk_to_paint = match hunk {
6112 DisplayDiffHunk::Folded { .. } => {
6113 let hunk_bounds = Self::diff_hunk_bounds(
6114 &layout.position_map.snapshot,
6115 line_height,
6116 layout.gutter_hitbox.bounds,
6117 hunk,
6118 );
6119 Some((
6120 hunk_bounds,
6121 cx.theme().colors().version_control_modified,
6122 Corners::all(px(0.)),
6123 DiffHunkStatus::modified_none(),
6124 ))
6125 }
6126 DisplayDiffHunk::Unfolded {
6127 status,
6128 display_row_range,
6129 ..
6130 } => hitbox.as_ref().map(|hunk_hitbox| {
6131 let color = match split_side {
6132 Some(SplitSide::Left) => cx.theme().colors().version_control_deleted,
6133 Some(SplitSide::Right) => cx.theme().colors().version_control_added,
6134 None => match status.kind {
6135 DiffHunkStatusKind::Added => {
6136 cx.theme().colors().version_control_added
6137 }
6138 DiffHunkStatusKind::Modified => {
6139 cx.theme().colors().version_control_modified
6140 }
6141 DiffHunkStatusKind::Deleted => {
6142 cx.theme().colors().version_control_deleted
6143 }
6144 },
6145 };
6146 match status.kind {
6147 DiffHunkStatusKind::Deleted if display_row_range.is_empty() => (
6148 Bounds::new(
6149 point(
6150 hunk_hitbox.origin.x - hunk_hitbox.size.width,
6151 hunk_hitbox.origin.y,
6152 ),
6153 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
6154 ),
6155 color,
6156 Corners::all(1. * line_height),
6157 *status,
6158 ),
6159 _ => (hunk_hitbox.bounds, color, Corners::all(px(0.)), *status),
6160 }
6161 }),
6162 };
6163
6164 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
6165 // Flatten the background color with the editor color to prevent
6166 // elements below transparent hunks from showing through
6167 let flattened_background_color = cx
6168 .theme()
6169 .colors()
6170 .editor_background
6171 .blend(background_color);
6172
6173 if !Self::diff_hunk_hollow(status, cx) {
6174 window.paint_quad(quad(
6175 hunk_bounds,
6176 corner_radii,
6177 flattened_background_color,
6178 Edges::default(),
6179 transparent_black(),
6180 BorderStyle::default(),
6181 ));
6182 } else {
6183 let flattened_unstaged_background_color = cx
6184 .theme()
6185 .colors()
6186 .editor_background
6187 .blend(background_color.opacity(0.3));
6188
6189 window.paint_quad(quad(
6190 hunk_bounds,
6191 corner_radii,
6192 flattened_unstaged_background_color,
6193 Edges::all(px(1.0)),
6194 flattened_background_color,
6195 BorderStyle::Solid,
6196 ));
6197 }
6198 }
6199 }
6200 });
6201 }
6202
6203 fn gutter_strip_width(line_height: Pixels) -> Pixels {
6204 (0.275 * line_height).floor()
6205 }
6206
6207 fn diff_hunk_bounds(
6208 snapshot: &EditorSnapshot,
6209 line_height: Pixels,
6210 gutter_bounds: Bounds<Pixels>,
6211 hunk: &DisplayDiffHunk,
6212 ) -> Bounds<Pixels> {
6213 let scroll_position = snapshot.scroll_position();
6214 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
6215 let gutter_strip_width = Self::gutter_strip_width(line_height);
6216
6217 match hunk {
6218 DisplayDiffHunk::Folded { display_row, .. } => {
6219 let start_y = (display_row.as_f64() * ScrollPixelOffset::from(line_height)
6220 - scroll_top)
6221 .into();
6222 let end_y = start_y + line_height;
6223 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6224 let highlight_size = size(gutter_strip_width, end_y - start_y);
6225 Bounds::new(highlight_origin, highlight_size)
6226 }
6227 DisplayDiffHunk::Unfolded {
6228 display_row_range,
6229 status,
6230 ..
6231 } => {
6232 if status.is_deleted() && display_row_range.is_empty() {
6233 let row = display_row_range.start;
6234
6235 let offset = ScrollPixelOffset::from(line_height / 2.);
6236 let start_y =
6237 (row.as_f64() * ScrollPixelOffset::from(line_height) - offset - scroll_top)
6238 .into();
6239 let end_y = start_y + line_height;
6240
6241 let width = (0.35 * line_height).floor();
6242 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6243 let highlight_size = size(width, end_y - start_y);
6244 Bounds::new(highlight_origin, highlight_size)
6245 } else {
6246 let start_row = display_row_range.start;
6247 let end_row = display_row_range.end;
6248 // If we're in a multibuffer, row range span might include an
6249 // excerpt header, so if we were to draw the marker straight away,
6250 // the hunk might include the rows of that header.
6251 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
6252 // Instead, we simply check whether the range we're dealing with includes
6253 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
6254 let end_row_in_current_excerpt = snapshot
6255 .blocks_in_range(start_row..end_row)
6256 .find_map(|(start_row, block)| {
6257 if matches!(
6258 block,
6259 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
6260 ) {
6261 Some(start_row)
6262 } else {
6263 None
6264 }
6265 })
6266 .unwrap_or(end_row);
6267
6268 let start_y = (start_row.as_f64() * ScrollPixelOffset::from(line_height)
6269 - scroll_top)
6270 .into();
6271 let end_y = Pixels::from(
6272 end_row_in_current_excerpt.as_f64() * ScrollPixelOffset::from(line_height)
6273 - scroll_top,
6274 );
6275
6276 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6277 let highlight_size = size(gutter_strip_width, end_y - start_y);
6278 Bounds::new(highlight_origin, highlight_size)
6279 }
6280 }
6281 }
6282 }
6283
6284 fn paint_gutter_indicators(
6285 &self,
6286 layout: &mut EditorLayout,
6287 window: &mut Window,
6288 cx: &mut App,
6289 ) {
6290 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6291 window.with_element_namespace("crease_toggles", |window| {
6292 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
6293 crease_toggle.paint(window, cx);
6294 }
6295 });
6296
6297 window.with_element_namespace("expand_toggles", |window| {
6298 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
6299 expand_toggle.paint(window, cx);
6300 }
6301 });
6302
6303 for breakpoint in layout.breakpoints.iter_mut() {
6304 breakpoint.paint(window, cx);
6305 }
6306
6307 for test_indicator in layout.test_indicators.iter_mut() {
6308 test_indicator.paint(window, cx);
6309 }
6310
6311 if let Some(diff_review_button) = layout.diff_review_button.as_mut() {
6312 diff_review_button.paint(window, cx);
6313 }
6314 });
6315 }
6316
6317 fn paint_gutter_highlights(
6318 &self,
6319 layout: &mut EditorLayout,
6320 window: &mut Window,
6321 cx: &mut App,
6322 ) {
6323 for (_, hunk_hitbox) in &layout.display_hunks {
6324 if let Some(hunk_hitbox) = hunk_hitbox
6325 && !self
6326 .editor
6327 .read(cx)
6328 .buffer()
6329 .read(cx)
6330 .all_diff_hunks_expanded()
6331 {
6332 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
6333 }
6334 }
6335
6336 let show_git_gutter = layout
6337 .position_map
6338 .snapshot
6339 .show_git_diff_gutter
6340 .unwrap_or_else(|| {
6341 matches!(
6342 ProjectSettings::get_global(cx).git.git_gutter,
6343 GitGutterSetting::TrackedFiles
6344 )
6345 });
6346 if show_git_gutter {
6347 Self::paint_gutter_diff_hunks(layout, self.split_side, window, cx)
6348 }
6349
6350 let highlight_width = 0.275 * layout.position_map.line_height;
6351 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
6352 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6353 for (range, color) in &layout.highlighted_gutter_ranges {
6354 let start_row = if range.start.row() < layout.visible_display_row_range.start {
6355 layout.visible_display_row_range.start - DisplayRow(1)
6356 } else {
6357 range.start.row()
6358 };
6359 let end_row = if range.end.row() > layout.visible_display_row_range.end {
6360 layout.visible_display_row_range.end + DisplayRow(1)
6361 } else {
6362 range.end.row()
6363 };
6364
6365 let start_y = layout.gutter_hitbox.top()
6366 + Pixels::from(
6367 start_row.0 as f64
6368 * ScrollPixelOffset::from(layout.position_map.line_height)
6369 - layout.position_map.scroll_pixel_position.y,
6370 );
6371 let end_y = layout.gutter_hitbox.top()
6372 + Pixels::from(
6373 (end_row.0 + 1) as f64
6374 * ScrollPixelOffset::from(layout.position_map.line_height)
6375 - layout.position_map.scroll_pixel_position.y,
6376 );
6377 let bounds = Bounds::from_corners(
6378 point(layout.gutter_hitbox.left(), start_y),
6379 point(layout.gutter_hitbox.left() + highlight_width, end_y),
6380 );
6381 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
6382 }
6383 });
6384 }
6385
6386 fn paint_blamed_display_rows(
6387 &self,
6388 layout: &mut EditorLayout,
6389 window: &mut Window,
6390 cx: &mut App,
6391 ) {
6392 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
6393 return;
6394 };
6395
6396 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6397 for mut blame_element in blamed_display_rows.into_iter() {
6398 blame_element.paint(window, cx);
6399 }
6400 })
6401 }
6402
6403 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6404 window.with_content_mask(
6405 Some(ContentMask {
6406 bounds: layout.position_map.text_hitbox.bounds,
6407 }),
6408 |window| {
6409 let editor = self.editor.read(cx);
6410 if editor.mouse_cursor_hidden {
6411 window.set_window_cursor_style(CursorStyle::None);
6412 } else if let SelectionDragState::ReadyToDrag {
6413 mouse_down_time, ..
6414 } = &editor.selection_drag_state
6415 {
6416 let drag_and_drop_delay = Duration::from_millis(
6417 EditorSettings::get_global(cx)
6418 .drag_and_drop_selection
6419 .delay
6420 .0,
6421 );
6422 if mouse_down_time.elapsed() >= drag_and_drop_delay {
6423 window.set_cursor_style(
6424 CursorStyle::DragCopy,
6425 &layout.position_map.text_hitbox,
6426 );
6427 }
6428 } else if matches!(
6429 editor.selection_drag_state,
6430 SelectionDragState::Dragging { .. }
6431 ) {
6432 window
6433 .set_cursor_style(CursorStyle::DragCopy, &layout.position_map.text_hitbox);
6434 } else if editor
6435 .hovered_link_state
6436 .as_ref()
6437 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
6438 {
6439 window.set_cursor_style(
6440 CursorStyle::PointingHand,
6441 &layout.position_map.text_hitbox,
6442 );
6443 } else {
6444 window.set_cursor_style(CursorStyle::IBeam, &layout.position_map.text_hitbox);
6445 };
6446
6447 self.paint_lines_background(layout, window, cx);
6448 let invisible_display_ranges = self.paint_highlights(layout, window, cx);
6449 self.paint_document_colors(layout, window);
6450 self.paint_lines(&invisible_display_ranges, layout, window, cx);
6451 self.paint_redactions(layout, window);
6452 self.paint_cursors(layout, window, cx);
6453 self.paint_inline_diagnostics(layout, window, cx);
6454 self.paint_inline_blame(layout, window, cx);
6455 self.paint_inline_code_actions(layout, window, cx);
6456 self.paint_diff_hunk_controls(layout, window, cx);
6457 window.with_element_namespace("crease_trailers", |window| {
6458 for trailer in layout.crease_trailers.iter_mut().flatten() {
6459 trailer.element.paint(window, cx);
6460 }
6461 });
6462 },
6463 )
6464 }
6465
6466 fn paint_highlights(
6467 &mut self,
6468 layout: &mut EditorLayout,
6469 window: &mut Window,
6470 cx: &mut App,
6471 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
6472 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6473 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
6474 let line_end_overshoot = 0.15 * layout.position_map.line_height;
6475 for (range, color) in &layout.highlighted_ranges {
6476 self.paint_highlighted_range(
6477 range.clone(),
6478 true,
6479 *color,
6480 Pixels::ZERO,
6481 line_end_overshoot,
6482 layout,
6483 window,
6484 );
6485 }
6486
6487 let corner_radius = if EditorSettings::get_global(cx).rounded_selection {
6488 0.15 * layout.position_map.line_height
6489 } else {
6490 Pixels::ZERO
6491 };
6492
6493 for (player_color, selections) in &layout.selections {
6494 for selection in selections.iter() {
6495 self.paint_highlighted_range(
6496 selection.range.clone(),
6497 true,
6498 player_color.selection,
6499 corner_radius,
6500 corner_radius * 2.,
6501 layout,
6502 window,
6503 );
6504
6505 if selection.is_local && !selection.range.is_empty() {
6506 invisible_display_ranges.push(selection.range.clone());
6507 }
6508 }
6509 }
6510 invisible_display_ranges
6511 })
6512 }
6513
6514 fn paint_lines(
6515 &mut self,
6516 invisible_display_ranges: &[Range<DisplayPoint>],
6517 layout: &mut EditorLayout,
6518 window: &mut Window,
6519 cx: &mut App,
6520 ) {
6521 let whitespace_setting = self
6522 .editor
6523 .read(cx)
6524 .buffer
6525 .read(cx)
6526 .language_settings(cx)
6527 .show_whitespaces;
6528
6529 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6530 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6531 line_with_invisibles.draw(
6532 layout,
6533 row,
6534 layout.content_origin,
6535 whitespace_setting,
6536 invisible_display_ranges,
6537 window,
6538 cx,
6539 )
6540 }
6541
6542 for line_element in &mut layout.line_elements {
6543 line_element.paint(window, cx);
6544 }
6545 }
6546
6547 fn paint_sticky_headers(
6548 &mut self,
6549 layout: &mut EditorLayout,
6550 window: &mut Window,
6551 cx: &mut App,
6552 ) {
6553 let Some(mut sticky_headers) = layout.sticky_headers.take() else {
6554 return;
6555 };
6556
6557 if sticky_headers.lines.is_empty() {
6558 layout.sticky_headers = Some(sticky_headers);
6559 return;
6560 }
6561
6562 let whitespace_setting = self
6563 .editor
6564 .read(cx)
6565 .buffer
6566 .read(cx)
6567 .language_settings(cx)
6568 .show_whitespaces;
6569 sticky_headers.paint(layout, whitespace_setting, window, cx);
6570
6571 let sticky_header_hitboxes: Vec<Hitbox> = sticky_headers
6572 .lines
6573 .iter()
6574 .map(|line| line.hitbox.clone())
6575 .collect();
6576 let hovered_hitbox = sticky_header_hitboxes
6577 .iter()
6578 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6579
6580 window.on_mouse_event(move |_: &MouseMoveEvent, phase, window, _cx| {
6581 if !phase.bubble() {
6582 return;
6583 }
6584
6585 let current_hover = sticky_header_hitboxes
6586 .iter()
6587 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6588 if hovered_hitbox != current_hover {
6589 window.refresh();
6590 }
6591 });
6592
6593 for (line_index, line) in sticky_headers.lines.iter().enumerate() {
6594 let editor = self.editor.clone();
6595 let hitbox = line.hitbox.clone();
6596 let target_anchor = line.target_anchor;
6597 window.on_mouse_event(move |event: &MouseDownEvent, phase, window, cx| {
6598 if !phase.bubble() {
6599 return;
6600 }
6601
6602 if event.button == MouseButton::Left && hitbox.is_hovered(window) {
6603 editor.update(cx, |editor, cx| {
6604 editor.change_selections(
6605 SelectionEffects::scroll(Autoscroll::top_relative(line_index)),
6606 window,
6607 cx,
6608 |selections| selections.select_ranges([target_anchor..target_anchor]),
6609 );
6610 cx.stop_propagation();
6611 });
6612 }
6613 });
6614 }
6615
6616 let text_bounds = layout.position_map.text_hitbox.bounds;
6617 let border_top = text_bounds.top()
6618 + sticky_headers.lines.last().unwrap().offset
6619 + layout.position_map.line_height;
6620 let separator_height = px(1.);
6621 let border_bounds = Bounds::from_corners(
6622 point(layout.gutter_hitbox.bounds.left(), border_top),
6623 point(text_bounds.right(), border_top + separator_height),
6624 );
6625 window.paint_quad(fill(border_bounds, cx.theme().colors().border_variant));
6626
6627 layout.sticky_headers = Some(sticky_headers);
6628 }
6629
6630 fn paint_lines_background(
6631 &mut self,
6632 layout: &mut EditorLayout,
6633 window: &mut Window,
6634 cx: &mut App,
6635 ) {
6636 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6637 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6638 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
6639 }
6640 }
6641
6642 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
6643 if layout.redacted_ranges.is_empty() {
6644 return;
6645 }
6646
6647 let line_end_overshoot = layout.line_end_overshoot();
6648
6649 // A softer than perfect black
6650 let redaction_color = gpui::rgb(0x0e1111);
6651
6652 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6653 for range in layout.redacted_ranges.iter() {
6654 self.paint_highlighted_range(
6655 range.clone(),
6656 true,
6657 redaction_color.into(),
6658 Pixels::ZERO,
6659 line_end_overshoot,
6660 layout,
6661 window,
6662 );
6663 }
6664 });
6665 }
6666
6667 fn paint_document_colors(&self, layout: &mut EditorLayout, window: &mut Window) {
6668 let Some((colors_render_mode, image_colors)) = &layout.document_colors else {
6669 return;
6670 };
6671 if image_colors.is_empty()
6672 || colors_render_mode == &DocumentColorsRenderMode::None
6673 || colors_render_mode == &DocumentColorsRenderMode::Inlay
6674 {
6675 return;
6676 }
6677
6678 let line_end_overshoot = layout.line_end_overshoot();
6679
6680 for (range, color) in image_colors {
6681 match colors_render_mode {
6682 DocumentColorsRenderMode::Inlay | DocumentColorsRenderMode::None => return,
6683 DocumentColorsRenderMode::Background => {
6684 self.paint_highlighted_range(
6685 range.clone(),
6686 true,
6687 *color,
6688 Pixels::ZERO,
6689 line_end_overshoot,
6690 layout,
6691 window,
6692 );
6693 }
6694 DocumentColorsRenderMode::Border => {
6695 self.paint_highlighted_range(
6696 range.clone(),
6697 false,
6698 *color,
6699 Pixels::ZERO,
6700 line_end_overshoot,
6701 layout,
6702 window,
6703 );
6704 }
6705 }
6706 }
6707 }
6708
6709 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6710 for cursor in &mut layout.visible_cursors {
6711 cursor.paint(layout.content_origin, window, cx);
6712 }
6713 }
6714
6715 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6716 let Some(scrollbars_layout) = layout.scrollbars_layout.take() else {
6717 return;
6718 };
6719 let any_scrollbar_dragged = self.editor.read(cx).scroll_manager.any_scrollbar_dragged();
6720
6721 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
6722 let hitbox = &scrollbar_layout.hitbox;
6723 if scrollbars_layout.visible {
6724 let scrollbar_edges = match axis {
6725 ScrollbarAxis::Horizontal => Edges {
6726 top: Pixels::ZERO,
6727 right: Pixels::ZERO,
6728 bottom: Pixels::ZERO,
6729 left: Pixels::ZERO,
6730 },
6731 ScrollbarAxis::Vertical => Edges {
6732 top: Pixels::ZERO,
6733 right: Pixels::ZERO,
6734 bottom: Pixels::ZERO,
6735 left: ScrollbarLayout::BORDER_WIDTH,
6736 },
6737 };
6738
6739 window.paint_layer(hitbox.bounds, |window| {
6740 window.paint_quad(quad(
6741 hitbox.bounds,
6742 Corners::default(),
6743 cx.theme().colors().scrollbar_track_background,
6744 scrollbar_edges,
6745 cx.theme().colors().scrollbar_track_border,
6746 BorderStyle::Solid,
6747 ));
6748
6749 if axis == ScrollbarAxis::Vertical {
6750 let fast_markers =
6751 self.collect_fast_scrollbar_markers(layout, scrollbar_layout, cx);
6752 // Refresh slow scrollbar markers in the background. Below, we
6753 // paint whatever markers have already been computed.
6754 self.refresh_slow_scrollbar_markers(layout, scrollbar_layout, window, cx);
6755
6756 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
6757 for marker in markers.iter().chain(&fast_markers) {
6758 let mut marker = marker.clone();
6759 marker.bounds.origin += hitbox.origin;
6760 window.paint_quad(marker);
6761 }
6762 }
6763
6764 if let Some(thumb_bounds) = scrollbar_layout.thumb_bounds {
6765 let scrollbar_thumb_color = match scrollbar_layout.thumb_state {
6766 ScrollbarThumbState::Dragging => {
6767 cx.theme().colors().scrollbar_thumb_active_background
6768 }
6769 ScrollbarThumbState::Hovered => {
6770 cx.theme().colors().scrollbar_thumb_hover_background
6771 }
6772 ScrollbarThumbState::Idle => {
6773 cx.theme().colors().scrollbar_thumb_background
6774 }
6775 };
6776 window.paint_quad(quad(
6777 thumb_bounds,
6778 Corners::default(),
6779 scrollbar_thumb_color,
6780 scrollbar_edges,
6781 cx.theme().colors().scrollbar_thumb_border,
6782 BorderStyle::Solid,
6783 ));
6784
6785 if any_scrollbar_dragged {
6786 window.set_window_cursor_style(CursorStyle::Arrow);
6787 } else {
6788 window.set_cursor_style(CursorStyle::Arrow, hitbox);
6789 }
6790 }
6791 })
6792 }
6793 }
6794
6795 window.on_mouse_event({
6796 let editor = self.editor.clone();
6797 let scrollbars_layout = scrollbars_layout.clone();
6798
6799 let mut mouse_position = window.mouse_position();
6800 move |event: &MouseMoveEvent, phase, window, cx| {
6801 if phase == DispatchPhase::Capture {
6802 return;
6803 }
6804
6805 editor.update(cx, |editor, cx| {
6806 if let Some((scrollbar_layout, axis)) = event
6807 .pressed_button
6808 .filter(|button| *button == MouseButton::Left)
6809 .and(editor.scroll_manager.dragging_scrollbar_axis())
6810 .and_then(|axis| {
6811 scrollbars_layout
6812 .iter_scrollbars()
6813 .find(|(_, a)| *a == axis)
6814 })
6815 {
6816 let ScrollbarLayout {
6817 hitbox,
6818 text_unit_size,
6819 ..
6820 } = scrollbar_layout;
6821
6822 let old_position = mouse_position.along(axis);
6823 let new_position = event.position.along(axis);
6824 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
6825 .contains(&old_position)
6826 {
6827 let position = editor.scroll_position(cx).apply_along(axis, |p| {
6828 (p + ScrollOffset::from(
6829 (new_position - old_position) / *text_unit_size,
6830 ))
6831 .max(0.)
6832 });
6833 editor.set_scroll_position(position, window, cx);
6834 }
6835
6836 editor.scroll_manager.show_scrollbars(window, cx);
6837 cx.stop_propagation();
6838 } else if let Some((layout, axis)) = scrollbars_layout
6839 .get_hovered_axis(window)
6840 .filter(|_| !event.dragging())
6841 {
6842 if layout.thumb_hovered(&event.position) {
6843 editor
6844 .scroll_manager
6845 .set_hovered_scroll_thumb_axis(axis, cx);
6846 } else {
6847 editor.scroll_manager.reset_scrollbar_state(cx);
6848 }
6849
6850 editor.scroll_manager.show_scrollbars(window, cx);
6851 } else {
6852 editor.scroll_manager.reset_scrollbar_state(cx);
6853 }
6854
6855 mouse_position = event.position;
6856 })
6857 }
6858 });
6859
6860 if any_scrollbar_dragged {
6861 window.on_mouse_event({
6862 let editor = self.editor.clone();
6863 move |_: &MouseUpEvent, phase, window, cx| {
6864 if phase == DispatchPhase::Capture {
6865 return;
6866 }
6867
6868 editor.update(cx, |editor, cx| {
6869 if let Some((_, axis)) = scrollbars_layout.get_hovered_axis(window) {
6870 editor
6871 .scroll_manager
6872 .set_hovered_scroll_thumb_axis(axis, cx);
6873 } else {
6874 editor.scroll_manager.reset_scrollbar_state(cx);
6875 }
6876 cx.stop_propagation();
6877 });
6878 }
6879 });
6880 } else {
6881 window.on_mouse_event({
6882 let editor = self.editor.clone();
6883
6884 move |event: &MouseDownEvent, phase, window, cx| {
6885 if phase == DispatchPhase::Capture {
6886 return;
6887 }
6888 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
6889 else {
6890 return;
6891 };
6892
6893 let ScrollbarLayout {
6894 hitbox,
6895 visible_range,
6896 text_unit_size,
6897 thumb_bounds,
6898 ..
6899 } = scrollbar_layout;
6900
6901 let Some(thumb_bounds) = thumb_bounds else {
6902 return;
6903 };
6904
6905 editor.update(cx, |editor, cx| {
6906 editor
6907 .scroll_manager
6908 .set_dragged_scroll_thumb_axis(axis, cx);
6909
6910 let event_position = event.position.along(axis);
6911
6912 if event_position < thumb_bounds.origin.along(axis)
6913 || thumb_bounds.bottom_right().along(axis) < event_position
6914 {
6915 let center_position = ((event_position - hitbox.origin.along(axis))
6916 / *text_unit_size)
6917 .round() as u32;
6918 let start_position = center_position.saturating_sub(
6919 (visible_range.end - visible_range.start) as u32 / 2,
6920 );
6921
6922 let position = editor
6923 .scroll_position(cx)
6924 .apply_along(axis, |_| start_position as ScrollOffset);
6925
6926 editor.set_scroll_position(position, window, cx);
6927 } else {
6928 editor.scroll_manager.show_scrollbars(window, cx);
6929 }
6930
6931 cx.stop_propagation();
6932 });
6933 }
6934 });
6935 }
6936 }
6937
6938 fn collect_fast_scrollbar_markers(
6939 &self,
6940 layout: &EditorLayout,
6941 scrollbar_layout: &ScrollbarLayout,
6942 cx: &mut App,
6943 ) -> Vec<PaintQuad> {
6944 const LIMIT: usize = 100;
6945 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
6946 return vec![];
6947 }
6948 let cursor_ranges = layout
6949 .cursors
6950 .iter()
6951 .map(|(point, color)| ColoredRange {
6952 start: point.row(),
6953 end: point.row(),
6954 color: *color,
6955 })
6956 .collect_vec();
6957 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
6958 }
6959
6960 fn refresh_slow_scrollbar_markers(
6961 &self,
6962 layout: &EditorLayout,
6963 scrollbar_layout: &ScrollbarLayout,
6964 window: &mut Window,
6965 cx: &mut App,
6966 ) {
6967 self.editor.update(cx, |editor, cx| {
6968 if editor.buffer_kind(cx) != ItemBufferKind::Singleton
6969 || !editor
6970 .scrollbar_marker_state
6971 .should_refresh(scrollbar_layout.hitbox.size)
6972 {
6973 return;
6974 }
6975
6976 let scrollbar_layout = scrollbar_layout.clone();
6977 let background_highlights = editor.background_highlights.clone();
6978 let snapshot = layout.position_map.snapshot.clone();
6979 let theme = cx.theme().clone();
6980 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
6981
6982 editor.scrollbar_marker_state.dirty = false;
6983 editor.scrollbar_marker_state.pending_refresh =
6984 Some(cx.spawn_in(window, async move |editor, cx| {
6985 let scrollbar_size = scrollbar_layout.hitbox.size;
6986 let scrollbar_markers = cx
6987 .background_spawn(async move {
6988 let max_point = snapshot.display_snapshot.buffer_snapshot().max_point();
6989 let mut marker_quads = Vec::new();
6990 if scrollbar_settings.git_diff {
6991 let marker_row_ranges =
6992 snapshot.buffer_snapshot().diff_hunks().map(|hunk| {
6993 let start_display_row =
6994 MultiBufferPoint::new(hunk.row_range.start.0, 0)
6995 .to_display_point(&snapshot.display_snapshot)
6996 .row();
6997 let mut end_display_row =
6998 MultiBufferPoint::new(hunk.row_range.end.0, 0)
6999 .to_display_point(&snapshot.display_snapshot)
7000 .row();
7001 if end_display_row != start_display_row {
7002 end_display_row.0 -= 1;
7003 }
7004 let color = match &hunk.status().kind {
7005 DiffHunkStatusKind::Added => {
7006 theme.colors().version_control_added
7007 }
7008 DiffHunkStatusKind::Modified => {
7009 theme.colors().version_control_modified
7010 }
7011 DiffHunkStatusKind::Deleted => {
7012 theme.colors().version_control_deleted
7013 }
7014 };
7015 ColoredRange {
7016 start: start_display_row,
7017 end: end_display_row,
7018 color,
7019 }
7020 });
7021
7022 marker_quads.extend(
7023 scrollbar_layout
7024 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
7025 );
7026 }
7027
7028 for (background_highlight_id, (_, background_ranges)) in
7029 background_highlights.iter()
7030 {
7031 let is_search_highlights = *background_highlight_id
7032 == HighlightKey::BufferSearchHighlights;
7033 let is_text_highlights =
7034 *background_highlight_id == HighlightKey::SelectedTextHighlight;
7035 let is_symbol_occurrences = *background_highlight_id
7036 == HighlightKey::DocumentHighlightRead
7037 || *background_highlight_id
7038 == HighlightKey::DocumentHighlightWrite;
7039 if (is_search_highlights && scrollbar_settings.search_results)
7040 || (is_text_highlights && scrollbar_settings.selected_text)
7041 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
7042 {
7043 let mut color = theme.status().info;
7044 if is_symbol_occurrences {
7045 color.fade_out(0.5);
7046 }
7047 let marker_row_ranges = background_ranges.iter().map(|range| {
7048 let display_start = range
7049 .start
7050 .to_display_point(&snapshot.display_snapshot);
7051 let display_end =
7052 range.end.to_display_point(&snapshot.display_snapshot);
7053 ColoredRange {
7054 start: display_start.row(),
7055 end: display_end.row(),
7056 color,
7057 }
7058 });
7059 marker_quads.extend(
7060 scrollbar_layout
7061 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
7062 );
7063 }
7064 }
7065
7066 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
7067 let diagnostics = snapshot
7068 .buffer_snapshot()
7069 .diagnostics_in_range::<Point>(Point::zero()..max_point)
7070 // Don't show diagnostics the user doesn't care about
7071 .filter(|diagnostic| {
7072 match (
7073 scrollbar_settings.diagnostics,
7074 diagnostic.diagnostic.severity,
7075 ) {
7076 (ScrollbarDiagnostics::All, _) => true,
7077 (
7078 ScrollbarDiagnostics::Error,
7079 lsp::DiagnosticSeverity::ERROR,
7080 ) => true,
7081 (
7082 ScrollbarDiagnostics::Warning,
7083 lsp::DiagnosticSeverity::ERROR
7084 | lsp::DiagnosticSeverity::WARNING,
7085 ) => true,
7086 (
7087 ScrollbarDiagnostics::Information,
7088 lsp::DiagnosticSeverity::ERROR
7089 | lsp::DiagnosticSeverity::WARNING
7090 | lsp::DiagnosticSeverity::INFORMATION,
7091 ) => true,
7092 (_, _) => false,
7093 }
7094 })
7095 // We want to sort by severity, in order to paint the most severe diagnostics last.
7096 .sorted_by_key(|diagnostic| {
7097 std::cmp::Reverse(diagnostic.diagnostic.severity)
7098 });
7099
7100 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
7101 let start_display = diagnostic
7102 .range
7103 .start
7104 .to_display_point(&snapshot.display_snapshot);
7105 let end_display = diagnostic
7106 .range
7107 .end
7108 .to_display_point(&snapshot.display_snapshot);
7109 let color = match diagnostic.diagnostic.severity {
7110 lsp::DiagnosticSeverity::ERROR => theme.status().error,
7111 lsp::DiagnosticSeverity::WARNING => theme.status().warning,
7112 lsp::DiagnosticSeverity::INFORMATION => theme.status().info,
7113 _ => theme.status().hint,
7114 };
7115 ColoredRange {
7116 start: start_display.row(),
7117 end: end_display.row(),
7118 color,
7119 }
7120 });
7121 marker_quads.extend(
7122 scrollbar_layout
7123 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
7124 );
7125 }
7126
7127 Arc::from(marker_quads)
7128 })
7129 .await;
7130
7131 editor.update(cx, |editor, cx| {
7132 editor.scrollbar_marker_state.markers = scrollbar_markers;
7133 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
7134 editor.scrollbar_marker_state.pending_refresh = None;
7135 cx.notify();
7136 })?;
7137
7138 Ok(())
7139 }));
7140 });
7141 }
7142
7143 fn paint_highlighted_range(
7144 &self,
7145 range: Range<DisplayPoint>,
7146 fill: bool,
7147 color: Hsla,
7148 corner_radius: Pixels,
7149 line_end_overshoot: Pixels,
7150 layout: &EditorLayout,
7151 window: &mut Window,
7152 ) {
7153 let start_row = layout.visible_display_row_range.start;
7154 let end_row = layout.visible_display_row_range.end;
7155 if range.start != range.end {
7156 let row_range = if range.end.column() == 0 {
7157 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
7158 } else {
7159 cmp::max(range.start.row(), start_row)
7160 ..cmp::min(range.end.row().next_row(), end_row)
7161 };
7162
7163 let highlighted_range = HighlightedRange {
7164 color,
7165 line_height: layout.position_map.line_height,
7166 corner_radius,
7167 start_y: layout.content_origin.y
7168 + Pixels::from(
7169 (row_range.start.as_f64() - layout.position_map.scroll_position.y)
7170 * ScrollOffset::from(layout.position_map.line_height),
7171 ),
7172 lines: row_range
7173 .iter_rows()
7174 .map(|row| {
7175 let line_layout =
7176 &layout.position_map.line_layouts[row.minus(start_row) as usize];
7177 let alignment_offset =
7178 line_layout.alignment_offset(layout.text_align, layout.content_width);
7179 HighlightedRangeLine {
7180 start_x: if row == range.start.row() {
7181 layout.content_origin.x
7182 + Pixels::from(
7183 ScrollPixelOffset::from(
7184 line_layout.x_for_index(range.start.column() as usize)
7185 + alignment_offset,
7186 ) - layout.position_map.scroll_pixel_position.x,
7187 )
7188 } else {
7189 layout.content_origin.x + alignment_offset
7190 - Pixels::from(layout.position_map.scroll_pixel_position.x)
7191 },
7192 end_x: if row == range.end.row() {
7193 layout.content_origin.x
7194 + Pixels::from(
7195 ScrollPixelOffset::from(
7196 line_layout.x_for_index(range.end.column() as usize)
7197 + alignment_offset,
7198 ) - layout.position_map.scroll_pixel_position.x,
7199 )
7200 } else {
7201 Pixels::from(
7202 ScrollPixelOffset::from(
7203 layout.content_origin.x
7204 + line_layout.width
7205 + alignment_offset
7206 + line_end_overshoot,
7207 ) - layout.position_map.scroll_pixel_position.x,
7208 )
7209 },
7210 }
7211 })
7212 .collect(),
7213 };
7214
7215 highlighted_range.paint(fill, layout.position_map.text_hitbox.bounds, window);
7216 }
7217 }
7218
7219 fn paint_inline_diagnostics(
7220 &mut self,
7221 layout: &mut EditorLayout,
7222 window: &mut Window,
7223 cx: &mut App,
7224 ) {
7225 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
7226 inline_diagnostic.1.paint(window, cx);
7227 }
7228 }
7229
7230 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7231 if let Some(mut blame_layout) = layout.inline_blame_layout.take() {
7232 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7233 blame_layout.element.paint(window, cx);
7234 })
7235 }
7236 }
7237
7238 fn paint_inline_code_actions(
7239 &mut self,
7240 layout: &mut EditorLayout,
7241 window: &mut Window,
7242 cx: &mut App,
7243 ) {
7244 if let Some(mut inline_code_actions) = layout.inline_code_actions.take() {
7245 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7246 inline_code_actions.paint(window, cx);
7247 })
7248 }
7249 }
7250
7251 fn paint_diff_hunk_controls(
7252 &mut self,
7253 layout: &mut EditorLayout,
7254 window: &mut Window,
7255 cx: &mut App,
7256 ) {
7257 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
7258 diff_hunk_control.paint(window, cx);
7259 }
7260 }
7261
7262 fn paint_minimap(&self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7263 if let Some(mut layout) = layout.minimap.take() {
7264 let minimap_hitbox = layout.thumb_layout.hitbox.clone();
7265 let dragging_minimap = self.editor.read(cx).scroll_manager.is_dragging_minimap();
7266
7267 window.paint_layer(layout.thumb_layout.hitbox.bounds, |window| {
7268 window.with_element_namespace("minimap", |window| {
7269 layout.minimap.paint(window, cx);
7270 if let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds {
7271 let minimap_thumb_color = match layout.thumb_layout.thumb_state {
7272 ScrollbarThumbState::Idle => {
7273 cx.theme().colors().minimap_thumb_background
7274 }
7275 ScrollbarThumbState::Hovered => {
7276 cx.theme().colors().minimap_thumb_hover_background
7277 }
7278 ScrollbarThumbState::Dragging => {
7279 cx.theme().colors().minimap_thumb_active_background
7280 }
7281 };
7282 let minimap_thumb_border = match layout.thumb_border_style {
7283 MinimapThumbBorder::Full => Edges::all(ScrollbarLayout::BORDER_WIDTH),
7284 MinimapThumbBorder::LeftOnly => Edges {
7285 left: ScrollbarLayout::BORDER_WIDTH,
7286 ..Default::default()
7287 },
7288 MinimapThumbBorder::LeftOpen => Edges {
7289 right: ScrollbarLayout::BORDER_WIDTH,
7290 top: ScrollbarLayout::BORDER_WIDTH,
7291 bottom: ScrollbarLayout::BORDER_WIDTH,
7292 ..Default::default()
7293 },
7294 MinimapThumbBorder::RightOpen => Edges {
7295 left: ScrollbarLayout::BORDER_WIDTH,
7296 top: ScrollbarLayout::BORDER_WIDTH,
7297 bottom: ScrollbarLayout::BORDER_WIDTH,
7298 ..Default::default()
7299 },
7300 MinimapThumbBorder::None => Default::default(),
7301 };
7302
7303 window.paint_layer(minimap_hitbox.bounds, |window| {
7304 window.paint_quad(quad(
7305 thumb_bounds,
7306 Corners::default(),
7307 minimap_thumb_color,
7308 minimap_thumb_border,
7309 cx.theme().colors().minimap_thumb_border,
7310 BorderStyle::Solid,
7311 ));
7312 });
7313 }
7314 });
7315 });
7316
7317 if dragging_minimap {
7318 window.set_window_cursor_style(CursorStyle::Arrow);
7319 } else {
7320 window.set_cursor_style(CursorStyle::Arrow, &minimap_hitbox);
7321 }
7322
7323 let minimap_axis = ScrollbarAxis::Vertical;
7324 let pixels_per_line = Pixels::from(
7325 ScrollPixelOffset::from(minimap_hitbox.size.height) / layout.max_scroll_top,
7326 )
7327 .min(layout.minimap_line_height);
7328
7329 let mut mouse_position = window.mouse_position();
7330
7331 window.on_mouse_event({
7332 let editor = self.editor.clone();
7333
7334 let minimap_hitbox = minimap_hitbox.clone();
7335
7336 move |event: &MouseMoveEvent, phase, window, cx| {
7337 if phase == DispatchPhase::Capture {
7338 return;
7339 }
7340
7341 editor.update(cx, |editor, cx| {
7342 if event.pressed_button == Some(MouseButton::Left)
7343 && editor.scroll_manager.is_dragging_minimap()
7344 {
7345 let old_position = mouse_position.along(minimap_axis);
7346 let new_position = event.position.along(minimap_axis);
7347 if (minimap_hitbox.origin.along(minimap_axis)
7348 ..minimap_hitbox.bottom_right().along(minimap_axis))
7349 .contains(&old_position)
7350 {
7351 let position =
7352 editor.scroll_position(cx).apply_along(minimap_axis, |p| {
7353 (p + ScrollPixelOffset::from(
7354 (new_position - old_position) / pixels_per_line,
7355 ))
7356 .max(0.)
7357 });
7358
7359 editor.set_scroll_position(position, window, cx);
7360 }
7361 cx.stop_propagation();
7362 } else if minimap_hitbox.is_hovered(window) {
7363 editor.scroll_manager.set_is_hovering_minimap_thumb(
7364 !event.dragging()
7365 && layout
7366 .thumb_layout
7367 .thumb_bounds
7368 .is_some_and(|bounds| bounds.contains(&event.position)),
7369 cx,
7370 );
7371
7372 // Stop hover events from propagating to the
7373 // underlying editor if the minimap hitbox is hovered
7374 if !event.dragging() {
7375 cx.stop_propagation();
7376 }
7377 } else {
7378 editor.scroll_manager.hide_minimap_thumb(cx);
7379 }
7380 mouse_position = event.position;
7381 });
7382 }
7383 });
7384
7385 if dragging_minimap {
7386 window.on_mouse_event({
7387 let editor = self.editor.clone();
7388 move |event: &MouseUpEvent, phase, window, cx| {
7389 if phase == DispatchPhase::Capture {
7390 return;
7391 }
7392
7393 editor.update(cx, |editor, cx| {
7394 if minimap_hitbox.is_hovered(window) {
7395 editor.scroll_manager.set_is_hovering_minimap_thumb(
7396 layout
7397 .thumb_layout
7398 .thumb_bounds
7399 .is_some_and(|bounds| bounds.contains(&event.position)),
7400 cx,
7401 );
7402 } else {
7403 editor.scroll_manager.hide_minimap_thumb(cx);
7404 }
7405 cx.stop_propagation();
7406 });
7407 }
7408 });
7409 } else {
7410 window.on_mouse_event({
7411 let editor = self.editor.clone();
7412
7413 move |event: &MouseDownEvent, phase, window, cx| {
7414 if phase == DispatchPhase::Capture || !minimap_hitbox.is_hovered(window) {
7415 return;
7416 }
7417
7418 let event_position = event.position;
7419
7420 let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds else {
7421 return;
7422 };
7423
7424 editor.update(cx, |editor, cx| {
7425 if !thumb_bounds.contains(&event_position) {
7426 let click_position =
7427 event_position.relative_to(&minimap_hitbox.origin).y;
7428
7429 let top_position = (click_position
7430 - thumb_bounds.size.along(minimap_axis) / 2.0)
7431 .max(Pixels::ZERO);
7432
7433 let scroll_offset = (layout.minimap_scroll_top
7434 + ScrollPixelOffset::from(
7435 top_position / layout.minimap_line_height,
7436 ))
7437 .min(layout.max_scroll_top);
7438
7439 let scroll_position = editor
7440 .scroll_position(cx)
7441 .apply_along(minimap_axis, |_| scroll_offset);
7442 editor.set_scroll_position(scroll_position, window, cx);
7443 }
7444
7445 editor.scroll_manager.set_is_dragging_minimap(cx);
7446 cx.stop_propagation();
7447 });
7448 }
7449 });
7450 }
7451 }
7452 }
7453
7454 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7455 for mut block in layout.blocks.drain(..) {
7456 if block.overlaps_gutter {
7457 block.element.paint(window, cx);
7458 } else {
7459 let mut bounds = layout.hitbox.bounds;
7460 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
7461 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7462 block.element.paint(window, cx);
7463 })
7464 }
7465 }
7466 }
7467
7468 fn paint_edit_prediction_popover(
7469 &mut self,
7470 layout: &mut EditorLayout,
7471 window: &mut Window,
7472 cx: &mut App,
7473 ) {
7474 if let Some(edit_prediction_popover) = layout.edit_prediction_popover.as_mut() {
7475 edit_prediction_popover.paint(window, cx);
7476 }
7477 }
7478
7479 fn paint_mouse_context_menu(
7480 &mut self,
7481 layout: &mut EditorLayout,
7482 window: &mut Window,
7483 cx: &mut App,
7484 ) {
7485 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
7486 mouse_context_menu.paint(window, cx);
7487 }
7488 }
7489
7490 fn paint_scroll_wheel_listener(
7491 &mut self,
7492 layout: &EditorLayout,
7493 window: &mut Window,
7494 cx: &mut App,
7495 ) {
7496 window.on_mouse_event({
7497 let position_map = layout.position_map.clone();
7498 let editor = self.editor.clone();
7499 let hitbox = layout.hitbox.clone();
7500 let mut delta = ScrollDelta::default();
7501
7502 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
7503 // accidentally turn off their scrolling.
7504 let base_scroll_sensitivity =
7505 EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
7506
7507 // Use a minimum fast_scroll_sensitivity for same reason above
7508 let fast_scroll_sensitivity = EditorSettings::get_global(cx)
7509 .fast_scroll_sensitivity
7510 .max(0.01);
7511
7512 move |event: &ScrollWheelEvent, phase, window, cx| {
7513 let scroll_sensitivity = {
7514 if event.modifiers.alt {
7515 fast_scroll_sensitivity
7516 } else {
7517 base_scroll_sensitivity
7518 }
7519 };
7520
7521 if phase == DispatchPhase::Bubble && hitbox.should_handle_scroll(window) {
7522 delta = delta.coalesce(event.delta);
7523 editor.update(cx, |editor, cx| {
7524 let position_map: &PositionMap = &position_map;
7525
7526 let line_height = position_map.line_height;
7527 let glyph_width = position_map.em_layout_width;
7528 let (delta, axis) = match delta {
7529 gpui::ScrollDelta::Pixels(mut pixels) => {
7530 //Trackpad
7531 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
7532 (pixels, axis)
7533 }
7534
7535 gpui::ScrollDelta::Lines(lines) => {
7536 //Not trackpad
7537 let pixels = point(lines.x * glyph_width, lines.y * line_height);
7538 (pixels, None)
7539 }
7540 };
7541
7542 let current_scroll_position = position_map.snapshot.scroll_position();
7543 let x = (current_scroll_position.x * ScrollPixelOffset::from(glyph_width)
7544 - ScrollPixelOffset::from(delta.x * scroll_sensitivity))
7545 / ScrollPixelOffset::from(glyph_width);
7546 let y = (current_scroll_position.y * ScrollPixelOffset::from(line_height)
7547 - ScrollPixelOffset::from(delta.y * scroll_sensitivity))
7548 / ScrollPixelOffset::from(line_height);
7549 let mut scroll_position =
7550 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
7551 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
7552 if forbid_vertical_scroll {
7553 scroll_position.y = current_scroll_position.y;
7554 }
7555
7556 if scroll_position != current_scroll_position {
7557 editor.scroll(scroll_position, axis, window, cx);
7558 cx.stop_propagation();
7559 } else if y < 0. {
7560 // Due to clamping, we may fail to detect cases of overscroll to the top;
7561 // We want the scroll manager to get an update in such cases and detect the change of direction
7562 // on the next frame.
7563 cx.notify();
7564 }
7565 });
7566 }
7567 }
7568 });
7569 }
7570
7571 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
7572 if layout.mode.is_minimap() {
7573 return;
7574 }
7575
7576 self.paint_scroll_wheel_listener(layout, window, cx);
7577
7578 window.on_mouse_event({
7579 let position_map = layout.position_map.clone();
7580 let editor = self.editor.clone();
7581 let line_numbers = layout.line_numbers.clone();
7582
7583 move |event: &MouseDownEvent, phase, window, cx| {
7584 if phase == DispatchPhase::Bubble {
7585 match event.button {
7586 MouseButton::Left => editor.update(cx, |editor, cx| {
7587 let pending_mouse_down = editor
7588 .pending_mouse_down
7589 .get_or_insert_with(Default::default)
7590 .clone();
7591
7592 *pending_mouse_down.borrow_mut() = Some(event.clone());
7593
7594 Self::mouse_left_down(
7595 editor,
7596 event,
7597 &position_map,
7598 line_numbers.as_ref(),
7599 window,
7600 cx,
7601 );
7602 }),
7603 MouseButton::Right => editor.update(cx, |editor, cx| {
7604 Self::mouse_right_down(editor, event, &position_map, window, cx);
7605 }),
7606 MouseButton::Middle => editor.update(cx, |editor, cx| {
7607 Self::mouse_middle_down(editor, event, &position_map, window, cx);
7608 }),
7609 _ => {}
7610 };
7611 }
7612 }
7613 });
7614
7615 window.on_mouse_event({
7616 let editor = self.editor.clone();
7617 let position_map = layout.position_map.clone();
7618
7619 move |event: &MouseUpEvent, phase, window, cx| {
7620 if phase == DispatchPhase::Bubble {
7621 editor.update(cx, |editor, cx| {
7622 Self::mouse_up(editor, event, &position_map, window, cx)
7623 });
7624 }
7625 }
7626 });
7627
7628 window.on_mouse_event({
7629 let editor = self.editor.clone();
7630 let position_map = layout.position_map.clone();
7631 let mut captured_mouse_down = None;
7632
7633 move |event: &MouseUpEvent, phase, window, cx| match phase {
7634 // Clear the pending mouse down during the capture phase,
7635 // so that it happens even if another event handler stops
7636 // propagation.
7637 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
7638 let pending_mouse_down = editor
7639 .pending_mouse_down
7640 .get_or_insert_with(Default::default)
7641 .clone();
7642
7643 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
7644 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
7645 captured_mouse_down = pending_mouse_down.take();
7646 window.refresh();
7647 }
7648 }),
7649 // Fire click handlers during the bubble phase.
7650 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
7651 if let Some(mouse_down) = captured_mouse_down.take() {
7652 let event = ClickEvent::Mouse(MouseClickEvent {
7653 down: mouse_down,
7654 up: event.clone(),
7655 });
7656 Self::click(editor, &event, &position_map, window, cx);
7657 }
7658 }),
7659 }
7660 });
7661
7662 window.on_mouse_event({
7663 let position_map = layout.position_map.clone();
7664 let editor = self.editor.clone();
7665
7666 move |event: &MousePressureEvent, phase, window, cx| {
7667 if phase == DispatchPhase::Bubble {
7668 editor.update(cx, |editor, cx| {
7669 Self::pressure_click(editor, &event, &position_map, window, cx);
7670 })
7671 }
7672 }
7673 });
7674
7675 window.on_mouse_event({
7676 let position_map = layout.position_map.clone();
7677 let editor = self.editor.clone();
7678 let split_side = self.split_side;
7679
7680 move |event: &MouseMoveEvent, phase, window, cx| {
7681 if phase == DispatchPhase::Bubble {
7682 editor.update(cx, |editor, cx| {
7683 if editor.hover_state.focused(window, cx) {
7684 return;
7685 }
7686 if event.pressed_button == Some(MouseButton::Left)
7687 || event.pressed_button == Some(MouseButton::Middle)
7688 {
7689 Self::mouse_dragged(editor, event, &position_map, window, cx)
7690 }
7691
7692 Self::mouse_moved(editor, event, &position_map, split_side, window, cx)
7693 });
7694 }
7695 }
7696 });
7697 }
7698
7699 fn shape_line_number(
7700 &self,
7701 text: SharedString,
7702 color: Hsla,
7703 window: &mut Window,
7704 ) -> ShapedLine {
7705 let run = TextRun {
7706 len: text.len(),
7707 font: self.style.text.font(),
7708 color,
7709 ..Default::default()
7710 };
7711 window.text_system().shape_line(
7712 text,
7713 self.style.text.font_size.to_pixels(window.rem_size()),
7714 &[run],
7715 None,
7716 )
7717 }
7718
7719 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
7720 let unstaged = status.has_secondary_hunk();
7721 let unstaged_hollow = matches!(
7722 ProjectSettings::get_global(cx).git.hunk_style,
7723 GitHunkStyleSetting::UnstagedHollow
7724 );
7725
7726 unstaged == unstaged_hollow
7727 }
7728
7729 #[cfg(debug_assertions)]
7730 fn layout_debug_ranges(
7731 selections: &mut Vec<(PlayerColor, Vec<SelectionLayout>)>,
7732 anchor_range: Range<Anchor>,
7733 display_snapshot: &DisplaySnapshot,
7734 cx: &App,
7735 ) {
7736 let theme = cx.theme();
7737 text::debug::GlobalDebugRanges::with_locked(|debug_ranges| {
7738 if debug_ranges.ranges.is_empty() {
7739 return;
7740 }
7741 let buffer_snapshot = &display_snapshot.buffer_snapshot();
7742 for (buffer, buffer_range, excerpt_id) in
7743 buffer_snapshot.range_to_buffer_ranges(anchor_range.start..=anchor_range.end)
7744 {
7745 let buffer_range =
7746 buffer.anchor_after(buffer_range.start)..buffer.anchor_before(buffer_range.end);
7747 selections.extend(debug_ranges.ranges.iter().flat_map(|debug_range| {
7748 let player_color = theme
7749 .players()
7750 .color_for_participant(debug_range.occurrence_index as u32 + 1);
7751 debug_range.ranges.iter().filter_map(move |range| {
7752 if range.start.buffer_id != Some(buffer.remote_id()) {
7753 return None;
7754 }
7755 let clipped_start = range.start.max(&buffer_range.start, buffer);
7756 let clipped_end = range.end.min(&buffer_range.end, buffer);
7757 let range = buffer_snapshot
7758 .anchor_range_in_excerpt(excerpt_id, *clipped_start..*clipped_end)?;
7759 let start = range.start.to_display_point(display_snapshot);
7760 let end = range.end.to_display_point(display_snapshot);
7761 let selection_layout = SelectionLayout {
7762 head: start,
7763 range: start..end,
7764 cursor_shape: CursorShape::Bar,
7765 is_newest: false,
7766 is_local: false,
7767 active_rows: start.row()..end.row(),
7768 user_name: Some(SharedString::new(debug_range.value.clone())),
7769 };
7770 Some((player_color, vec![selection_layout]))
7771 })
7772 }));
7773 }
7774 });
7775 }
7776}
7777
7778pub fn render_breadcrumb_text(
7779 mut segments: Vec<BreadcrumbText>,
7780 prefix: Option<gpui::AnyElement>,
7781 active_item: &dyn ItemHandle,
7782 multibuffer_header: bool,
7783 window: &mut Window,
7784 cx: &App,
7785) -> gpui::AnyElement {
7786 const MAX_SEGMENTS: usize = 12;
7787
7788 let element = h_flex().flex_grow().text_ui(cx);
7789
7790 let prefix_end_ix = cmp::min(segments.len(), MAX_SEGMENTS / 2);
7791 let suffix_start_ix = cmp::max(
7792 prefix_end_ix,
7793 segments.len().saturating_sub(MAX_SEGMENTS / 2),
7794 );
7795
7796 if suffix_start_ix > prefix_end_ix {
7797 segments.splice(
7798 prefix_end_ix..suffix_start_ix,
7799 Some(BreadcrumbText {
7800 text: "β―".into(),
7801 highlights: None,
7802 font: None,
7803 }),
7804 );
7805 }
7806
7807 let highlighted_segments = segments.into_iter().enumerate().map(|(index, segment)| {
7808 let mut text_style = window.text_style();
7809 if let Some(ref font) = segment.font {
7810 text_style.font_family = font.family.clone();
7811 text_style.font_features = font.features.clone();
7812 text_style.font_style = font.style;
7813 text_style.font_weight = font.weight;
7814 }
7815 text_style.color = Color::Muted.color(cx);
7816
7817 if index == 0
7818 && !workspace::TabBarSettings::get_global(cx).show
7819 && active_item.is_dirty(cx)
7820 && let Some(styled_element) = apply_dirty_filename_style(&segment, &text_style, cx)
7821 {
7822 return styled_element;
7823 }
7824
7825 StyledText::new(segment.text.replace('\n', "β"))
7826 .with_default_highlights(&text_style, segment.highlights.unwrap_or_default())
7827 .into_any()
7828 });
7829
7830 let breadcrumbs = Itertools::intersperse_with(highlighted_segments, || {
7831 Label::new("βΊ").color(Color::Placeholder).into_any_element()
7832 });
7833
7834 let breadcrumbs_stack = h_flex()
7835 .gap_1()
7836 .when(multibuffer_header, |this| {
7837 this.pl_2()
7838 .border_l_1()
7839 .border_color(cx.theme().colors().border.opacity(0.6))
7840 })
7841 .children(breadcrumbs);
7842
7843 let breadcrumbs = if let Some(prefix) = prefix {
7844 h_flex().gap_1p5().child(prefix).child(breadcrumbs_stack)
7845 } else {
7846 breadcrumbs_stack
7847 };
7848
7849 let editor = active_item
7850 .downcast::<Editor>()
7851 .map(|editor| editor.downgrade());
7852
7853 let has_project_path = active_item.project_path(cx).is_some();
7854
7855 match editor {
7856 Some(editor) => element
7857 .id("breadcrumb_container")
7858 .when(!multibuffer_header, |this| this.overflow_x_scroll())
7859 .child(
7860 ButtonLike::new("toggle outline view")
7861 .child(breadcrumbs)
7862 .when(multibuffer_header, |this| {
7863 this.style(ButtonStyle::Transparent)
7864 })
7865 .when(!multibuffer_header, |this| {
7866 let focus_handle = editor.upgrade().unwrap().focus_handle(&cx);
7867
7868 this.tooltip(Tooltip::element(move |_window, cx| {
7869 v_flex()
7870 .gap_1()
7871 .child(
7872 h_flex()
7873 .gap_1()
7874 .justify_between()
7875 .child(Label::new("Show Symbol Outline"))
7876 .child(ui::KeyBinding::for_action_in(
7877 &zed_actions::outline::ToggleOutline,
7878 &focus_handle,
7879 cx,
7880 )),
7881 )
7882 .when(has_project_path, |this| {
7883 this.child(
7884 h_flex()
7885 .gap_1()
7886 .justify_between()
7887 .pt_1()
7888 .border_t_1()
7889 .border_color(cx.theme().colors().border_variant)
7890 .child(Label::new("Right-Click to Copy Path")),
7891 )
7892 })
7893 .into_any_element()
7894 }))
7895 .on_click({
7896 let editor = editor.clone();
7897 move |_, window, cx| {
7898 if let Some((editor, callback)) = editor
7899 .upgrade()
7900 .zip(zed_actions::outline::TOGGLE_OUTLINE.get())
7901 {
7902 callback(editor.to_any_view(), window, cx);
7903 }
7904 }
7905 })
7906 .when(has_project_path, |this| {
7907 this.on_right_click({
7908 let editor = editor.clone();
7909 move |_, _, cx| {
7910 if let Some(abs_path) = editor.upgrade().and_then(|editor| {
7911 editor.update(cx, |editor, cx| {
7912 editor.target_file_abs_path(cx)
7913 })
7914 }) {
7915 if let Some(path_str) = abs_path.to_str() {
7916 cx.write_to_clipboard(ClipboardItem::new_string(
7917 path_str.to_string(),
7918 ));
7919 }
7920 }
7921 }
7922 })
7923 })
7924 }),
7925 )
7926 .into_any_element(),
7927 None => element
7928 .h(rems_from_px(22.)) // Match the height and padding of the `ButtonLike` in the other arm.
7929 .pl_1()
7930 .child(breadcrumbs)
7931 .into_any_element(),
7932 }
7933}
7934
7935fn apply_dirty_filename_style(
7936 segment: &BreadcrumbText,
7937 text_style: &gpui::TextStyle,
7938 cx: &App,
7939) -> Option<gpui::AnyElement> {
7940 let text = segment.text.replace('\n', "β");
7941
7942 let filename_position = std::path::Path::new(&segment.text)
7943 .file_name()
7944 .and_then(|f| {
7945 let filename_str = f.to_string_lossy();
7946 segment.text.rfind(filename_str.as_ref())
7947 })?;
7948
7949 let bold_weight = FontWeight::BOLD;
7950 let default_color = Color::Default.color(cx);
7951
7952 if filename_position == 0 {
7953 let mut filename_style = text_style.clone();
7954 filename_style.font_weight = bold_weight;
7955 filename_style.color = default_color;
7956
7957 return Some(
7958 StyledText::new(text)
7959 .with_default_highlights(&filename_style, [])
7960 .into_any(),
7961 );
7962 }
7963
7964 let highlight_style = gpui::HighlightStyle {
7965 font_weight: Some(bold_weight),
7966 color: Some(default_color),
7967 ..Default::default()
7968 };
7969
7970 let highlight = vec![(filename_position..text.len(), highlight_style)];
7971 Some(
7972 StyledText::new(text)
7973 .with_default_highlights(text_style, highlight)
7974 .into_any(),
7975 )
7976}
7977
7978fn file_status_label_color(file_status: Option<FileStatus>) -> Color {
7979 file_status.map_or(Color::Default, |status| {
7980 if status.is_conflicted() {
7981 Color::Conflict
7982 } else if status.is_modified() {
7983 Color::Modified
7984 } else if status.is_deleted() {
7985 Color::Disabled
7986 } else if status.is_created() {
7987 Color::Created
7988 } else {
7989 Color::Default
7990 }
7991 })
7992}
7993
7994pub(crate) fn header_jump_data(
7995 editor_snapshot: &EditorSnapshot,
7996 block_row_start: DisplayRow,
7997 height: u32,
7998 first_excerpt: &ExcerptInfo,
7999 latest_selection_anchors: &HashMap<BufferId, Anchor>,
8000) -> JumpData {
8001 let jump_target = if let Some(anchor) = latest_selection_anchors.get(&first_excerpt.buffer_id)
8002 && let Some(range) = editor_snapshot.context_range_for_excerpt(anchor.excerpt_id)
8003 && let Some(buffer) = editor_snapshot
8004 .buffer_snapshot()
8005 .buffer_for_excerpt(anchor.excerpt_id)
8006 {
8007 JumpTargetInExcerptInput {
8008 id: anchor.excerpt_id,
8009 buffer,
8010 excerpt_start_anchor: range.start,
8011 jump_anchor: anchor.text_anchor,
8012 }
8013 } else {
8014 JumpTargetInExcerptInput {
8015 id: first_excerpt.id,
8016 buffer: &first_excerpt.buffer,
8017 excerpt_start_anchor: first_excerpt.range.context.start,
8018 jump_anchor: first_excerpt.range.primary.start,
8019 }
8020 };
8021 header_jump_data_inner(editor_snapshot, block_row_start, height, &jump_target)
8022}
8023
8024struct JumpTargetInExcerptInput<'a> {
8025 id: ExcerptId,
8026 buffer: &'a language::BufferSnapshot,
8027 excerpt_start_anchor: text::Anchor,
8028 jump_anchor: text::Anchor,
8029}
8030
8031fn header_jump_data_inner(
8032 snapshot: &EditorSnapshot,
8033 block_row_start: DisplayRow,
8034 height: u32,
8035 for_excerpt: &JumpTargetInExcerptInput,
8036) -> JumpData {
8037 let buffer = &for_excerpt.buffer;
8038 let jump_position = language::ToPoint::to_point(&for_excerpt.jump_anchor, buffer);
8039 let excerpt_start = for_excerpt.excerpt_start_anchor;
8040 let rows_from_excerpt_start = if for_excerpt.jump_anchor == excerpt_start {
8041 0
8042 } else {
8043 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
8044 jump_position.row.saturating_sub(excerpt_start_point.row)
8045 };
8046
8047 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
8048 .saturating_sub(
8049 snapshot
8050 .scroll_anchor
8051 .scroll_position(&snapshot.display_snapshot)
8052 .y as u32,
8053 );
8054
8055 JumpData::MultiBufferPoint {
8056 excerpt_id: for_excerpt.id,
8057 anchor: for_excerpt.jump_anchor,
8058 position: jump_position,
8059 line_offset_from_top,
8060 }
8061}
8062
8063pub(crate) fn render_buffer_header(
8064 editor: &Entity<Editor>,
8065 for_excerpt: &ExcerptInfo,
8066 is_folded: bool,
8067 is_selected: bool,
8068 is_sticky: bool,
8069 jump_data: JumpData,
8070 window: &mut Window,
8071 cx: &mut App,
8072) -> impl IntoElement {
8073 let editor_read = editor.read(cx);
8074 let multi_buffer = editor_read.buffer.read(cx);
8075 let is_read_only = editor_read.read_only(cx);
8076 let editor_handle: &dyn ItemHandle = editor;
8077
8078 let breadcrumbs = if is_selected {
8079 editor_read.breadcrumbs_inner(cx)
8080 } else {
8081 None
8082 };
8083
8084 let file_status = multi_buffer
8085 .all_diff_hunks_expanded()
8086 .then(|| editor_read.status_for_buffer_id(for_excerpt.buffer_id, cx))
8087 .flatten();
8088 let indicator = multi_buffer
8089 .buffer(for_excerpt.buffer_id)
8090 .and_then(|buffer| {
8091 let buffer = buffer.read(cx);
8092 let indicator_color = match (buffer.has_conflict(), buffer.is_dirty()) {
8093 (true, _) => Some(Color::Warning),
8094 (_, true) => Some(Color::Accent),
8095 (false, false) => None,
8096 };
8097 indicator_color.map(|indicator_color| Indicator::dot().color(indicator_color))
8098 });
8099
8100 let include_root = editor_read
8101 .project
8102 .as_ref()
8103 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
8104 .unwrap_or_default();
8105 let file = for_excerpt.buffer.file();
8106 let can_open_excerpts = file.is_none_or(|file| file.can_open());
8107 let path_style = file.map(|file| file.path_style(cx));
8108 let relative_path = for_excerpt.buffer.resolve_file_path(include_root, cx);
8109 let (parent_path, filename) = if let Some(path) = &relative_path {
8110 if let Some(path_style) = path_style {
8111 let (dir, file_name) = path_style.split(path);
8112 (dir.map(|dir| dir.to_owned()), Some(file_name.to_owned()))
8113 } else {
8114 (None, Some(path.clone()))
8115 }
8116 } else {
8117 (None, None)
8118 };
8119 let focus_handle = editor_read.focus_handle(cx);
8120 let colors = cx.theme().colors();
8121
8122 let header = div()
8123 .id(("buffer-header", for_excerpt.buffer_id.to_proto()))
8124 .p_1()
8125 .w_full()
8126 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
8127 .child(
8128 h_flex()
8129 .size_full()
8130 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
8131 .pl_1()
8132 .pr_2()
8133 .rounded_sm()
8134 .gap_1p5()
8135 .when(is_sticky, |el| el.shadow_md())
8136 .border_1()
8137 .map(|border| {
8138 let border_color =
8139 if is_selected && is_folded && focus_handle.contains_focused(window, cx) {
8140 colors.border_focused
8141 } else {
8142 colors.border
8143 };
8144 border.border_color(border_color)
8145 })
8146 .bg(colors.editor_subheader_background)
8147 .hover(|style| style.bg(colors.element_hover))
8148 .map(|header| {
8149 let editor = editor.clone();
8150 let buffer_id = for_excerpt.buffer_id;
8151 let toggle_chevron_icon =
8152 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
8153 let button_size = rems_from_px(28.);
8154
8155 header.child(
8156 div()
8157 .hover(|style| style.bg(colors.element_selected))
8158 .rounded_xs()
8159 .child(
8160 ButtonLike::new("toggle-buffer-fold")
8161 .style(ButtonStyle::Transparent)
8162 .height(button_size.into())
8163 .width(button_size)
8164 .children(toggle_chevron_icon)
8165 .tooltip({
8166 let focus_handle = focus_handle.clone();
8167 let is_folded_for_tooltip = is_folded;
8168 move |_window, cx| {
8169 Tooltip::with_meta_in(
8170 if is_folded_for_tooltip {
8171 "Unfold Excerpt"
8172 } else {
8173 "Fold Excerpt"
8174 },
8175 Some(&ToggleFold),
8176 format!(
8177 "{} to toggle all",
8178 text_for_keystroke(
8179 &Modifiers::alt(),
8180 "click",
8181 cx
8182 )
8183 ),
8184 &focus_handle,
8185 cx,
8186 )
8187 }
8188 })
8189 .on_click(move |event, window, cx| {
8190 if event.modifiers().alt {
8191 editor.update(cx, |editor, cx| {
8192 editor.toggle_fold_all(&ToggleFoldAll, window, cx);
8193 });
8194 } else {
8195 if is_folded {
8196 editor.update(cx, |editor, cx| {
8197 editor.unfold_buffer(buffer_id, cx);
8198 });
8199 } else {
8200 editor.update(cx, |editor, cx| {
8201 editor.fold_buffer(buffer_id, cx);
8202 });
8203 }
8204 }
8205 }),
8206 ),
8207 )
8208 })
8209 .children(
8210 editor_read
8211 .addons
8212 .values()
8213 .filter_map(|addon| {
8214 addon.render_buffer_header_controls(for_excerpt, window, cx)
8215 })
8216 .take(1),
8217 )
8218 .when(!is_read_only, |this| {
8219 this.child(
8220 h_flex()
8221 .size_3()
8222 .justify_center()
8223 .flex_shrink_0()
8224 .children(indicator),
8225 )
8226 })
8227 .child(
8228 h_flex()
8229 .cursor_pointer()
8230 .id("path_header_block")
8231 .min_w_0()
8232 .size_full()
8233 .gap_1()
8234 .justify_between()
8235 .overflow_hidden()
8236 .child(h_flex().min_w_0().flex_1().gap_0p5().overflow_hidden().map(
8237 |path_header| {
8238 let filename = filename
8239 .map(SharedString::from)
8240 .unwrap_or_else(|| "untitled".into());
8241
8242 let full_path = match parent_path.as_deref() {
8243 Some(parent) if !parent.is_empty() => {
8244 format!("{}{}", parent, filename.as_str())
8245 }
8246 _ => filename.as_str().to_string(),
8247 };
8248
8249 path_header
8250 .child(
8251 ButtonLike::new("filename-button")
8252 .when(ItemSettings::get_global(cx).file_icons, |this| {
8253 let path = path::Path::new(filename.as_str());
8254 let icon = FileIcons::get_icon(path, cx)
8255 .unwrap_or_default();
8256
8257 this.child(
8258 Icon::from_path(icon).color(Color::Muted),
8259 )
8260 })
8261 .child(
8262 Label::new(filename)
8263 .single_line()
8264 .color(file_status_label_color(file_status))
8265 .buffer_font(cx)
8266 .when(
8267 file_status.is_some_and(|s| s.is_deleted()),
8268 |label| label.strikethrough(),
8269 ),
8270 )
8271 .tooltip(move |_, cx| {
8272 Tooltip::with_meta(
8273 "Open File",
8274 None,
8275 full_path.clone(),
8276 cx,
8277 )
8278 })
8279 .on_click(window.listener_for(editor, {
8280 let jump_data = jump_data.clone();
8281 move |editor, e: &ClickEvent, window, cx| {
8282 editor.open_excerpts_common(
8283 Some(jump_data.clone()),
8284 e.modifiers().secondary(),
8285 window,
8286 cx,
8287 );
8288 }
8289 })),
8290 )
8291 .when_some(parent_path, |then, path| {
8292 then.child(
8293 Label::new(path)
8294 .buffer_font(cx)
8295 .truncate_start()
8296 .color(
8297 if file_status
8298 .is_some_and(FileStatus::is_deleted)
8299 {
8300 Color::Custom(colors.text_disabled)
8301 } else {
8302 Color::Custom(colors.text_muted)
8303 },
8304 ),
8305 )
8306 })
8307 .when(!for_excerpt.buffer.capability.editable(), |el| {
8308 el.child(Icon::new(IconName::FileLock).color(Color::Muted))
8309 })
8310 .when_some(breadcrumbs, |then, breadcrumbs| {
8311 then.child(render_breadcrumb_text(
8312 breadcrumbs,
8313 None,
8314 editor_handle,
8315 true,
8316 window,
8317 cx,
8318 ))
8319 })
8320 },
8321 ))
8322 .when(
8323 can_open_excerpts && is_selected && relative_path.is_some(),
8324 |el| {
8325 el.child(
8326 Button::new("open-file-button", "Open File")
8327 .style(ButtonStyle::OutlinedGhost)
8328 .key_binding(KeyBinding::for_action_in(
8329 &OpenExcerpts,
8330 &focus_handle,
8331 cx,
8332 ))
8333 .on_click(window.listener_for(editor, {
8334 let jump_data = jump_data.clone();
8335 move |editor, e: &ClickEvent, window, cx| {
8336 editor.open_excerpts_common(
8337 Some(jump_data.clone()),
8338 e.modifiers().secondary(),
8339 window,
8340 cx,
8341 );
8342 }
8343 })),
8344 )
8345 },
8346 )
8347 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
8348 .on_click(window.listener_for(editor, {
8349 let buffer_id = for_excerpt.buffer_id;
8350 move |editor, e: &ClickEvent, window, cx| {
8351 if e.modifiers().alt {
8352 editor.open_excerpts_common(
8353 Some(jump_data.clone()),
8354 e.modifiers().secondary(),
8355 window,
8356 cx,
8357 );
8358 return;
8359 }
8360
8361 if is_folded {
8362 editor.unfold_buffer(buffer_id, cx);
8363 } else {
8364 editor.fold_buffer(buffer_id, cx);
8365 }
8366 }
8367 })),
8368 ),
8369 );
8370
8371 let file = for_excerpt.buffer.file().cloned();
8372 let editor = editor.clone();
8373
8374 right_click_menu("buffer-header-context-menu")
8375 .trigger(move |_, _, _| header)
8376 .menu(move |window, cx| {
8377 let menu_context = focus_handle.clone();
8378 let editor = editor.clone();
8379 let file = file.clone();
8380 ContextMenu::build(window, cx, move |mut menu, window, cx| {
8381 if let Some(file) = file
8382 && let Some(project) = editor.read(cx).project()
8383 && let Some(worktree) =
8384 project.read(cx).worktree_for_id(file.worktree_id(cx), cx)
8385 {
8386 let path_style = file.path_style(cx);
8387 let worktree = worktree.read(cx);
8388 let relative_path = file.path();
8389 let entry_for_path = worktree.entry_for_path(relative_path);
8390 let abs_path = entry_for_path.map(|e| {
8391 e.canonical_path
8392 .as_deref()
8393 .map_or_else(|| worktree.absolutize(relative_path), Path::to_path_buf)
8394 });
8395 let has_relative_path = worktree.root_entry().is_some_and(Entry::is_dir);
8396
8397 let parent_abs_path = abs_path
8398 .as_ref()
8399 .and_then(|abs_path| Some(abs_path.parent()?.to_path_buf()));
8400 let relative_path = has_relative_path
8401 .then_some(relative_path)
8402 .map(ToOwned::to_owned);
8403
8404 let visible_in_project_panel = relative_path.is_some() && worktree.is_visible();
8405 let reveal_in_project_panel = entry_for_path
8406 .filter(|_| visible_in_project_panel)
8407 .map(|entry| entry.id);
8408 menu = menu
8409 .when_some(abs_path, |menu, abs_path| {
8410 menu.entry(
8411 "Copy Path",
8412 Some(Box::new(zed_actions::workspace::CopyPath)),
8413 window.handler_for(&editor, move |_, _, cx| {
8414 cx.write_to_clipboard(ClipboardItem::new_string(
8415 abs_path.to_string_lossy().into_owned(),
8416 ));
8417 }),
8418 )
8419 })
8420 .when_some(relative_path, |menu, relative_path| {
8421 menu.entry(
8422 "Copy Relative Path",
8423 Some(Box::new(zed_actions::workspace::CopyRelativePath)),
8424 window.handler_for(&editor, move |_, _, cx| {
8425 cx.write_to_clipboard(ClipboardItem::new_string(
8426 relative_path.display(path_style).to_string(),
8427 ));
8428 }),
8429 )
8430 })
8431 .when(
8432 reveal_in_project_panel.is_some() || parent_abs_path.is_some(),
8433 |menu| menu.separator(),
8434 )
8435 .when_some(reveal_in_project_panel, |menu, entry_id| {
8436 menu.entry(
8437 "Reveal In Project Panel",
8438 Some(Box::new(RevealInProjectPanel::default())),
8439 window.handler_for(&editor, move |editor, _, cx| {
8440 if let Some(project) = &mut editor.project {
8441 project.update(cx, |_, cx| {
8442 cx.emit(project::Event::RevealInProjectPanel(entry_id))
8443 });
8444 }
8445 }),
8446 )
8447 })
8448 .when_some(parent_abs_path, |menu, parent_abs_path| {
8449 menu.entry(
8450 "Open in Terminal",
8451 Some(Box::new(OpenInTerminal)),
8452 window.handler_for(&editor, move |_, window, cx| {
8453 window.dispatch_action(
8454 OpenTerminal {
8455 working_directory: parent_abs_path.clone(),
8456 local: false,
8457 }
8458 .boxed_clone(),
8459 cx,
8460 );
8461 }),
8462 )
8463 });
8464 }
8465
8466 menu.context(menu_context)
8467 })
8468 })
8469}
8470
8471pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
8472
8473impl AcceptEditPredictionBinding {
8474 pub fn keystroke(&self) -> Option<&KeybindingKeystroke> {
8475 if let Some(binding) = self.0.as_ref() {
8476 match &binding.keystrokes() {
8477 [keystroke, ..] => Some(keystroke),
8478 _ => None,
8479 }
8480 } else {
8481 None
8482 }
8483 }
8484}
8485
8486fn prepaint_gutter_button(
8487 mut button: AnyElement,
8488 row: DisplayRow,
8489 line_height: Pixels,
8490 gutter_dimensions: &GutterDimensions,
8491 scroll_position: gpui::Point<ScrollOffset>,
8492 gutter_hitbox: &Hitbox,
8493 window: &mut Window,
8494 cx: &mut App,
8495) -> AnyElement {
8496 let available_space = size(
8497 AvailableSpace::MinContent,
8498 AvailableSpace::Definite(line_height),
8499 );
8500 let indicator_size = button.layout_as_root(available_space, window, cx);
8501 let git_gutter_width = EditorElement::gutter_strip_width(line_height)
8502 + gutter_dimensions
8503 .git_blame_entries_width
8504 .unwrap_or_default();
8505
8506 let x = git_gutter_width + px(2.);
8507
8508 let mut y =
8509 Pixels::from((row.as_f64() - scroll_position.y) * ScrollPixelOffset::from(line_height));
8510 y += (line_height - indicator_size.height) / 2.;
8511
8512 button.prepaint_as_root(
8513 gutter_hitbox.origin + point(x, y),
8514 available_space,
8515 window,
8516 cx,
8517 );
8518 button
8519}
8520
8521fn render_inline_blame_entry(
8522 blame_entry: BlameEntry,
8523 style: &EditorStyle,
8524 cx: &mut App,
8525) -> Option<AnyElement> {
8526 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
8527 renderer.render_inline_blame_entry(&style.text, blame_entry, cx)
8528}
8529
8530fn render_blame_entry_popover(
8531 blame_entry: BlameEntry,
8532 scroll_handle: ScrollHandle,
8533 commit_message: Option<ParsedCommitMessage>,
8534 markdown: Entity<Markdown>,
8535 workspace: WeakEntity<Workspace>,
8536 blame: &Entity<GitBlame>,
8537 buffer: BufferId,
8538 window: &mut Window,
8539 cx: &mut App,
8540) -> Option<AnyElement> {
8541 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
8542 let blame = blame.read(cx);
8543 let repository = blame.repository(cx, buffer)?;
8544 renderer.render_blame_entry_popover(
8545 blame_entry,
8546 scroll_handle,
8547 commit_message,
8548 markdown,
8549 repository,
8550 workspace,
8551 window,
8552 cx,
8553 )
8554}
8555
8556fn render_blame_entry(
8557 ix: usize,
8558 blame: &Entity<GitBlame>,
8559 blame_entry: BlameEntry,
8560 style: &EditorStyle,
8561 last_used_color: &mut Option<(Hsla, Oid)>,
8562 editor: Entity<Editor>,
8563 workspace: Entity<Workspace>,
8564 buffer: BufferId,
8565 renderer: &dyn BlameRenderer,
8566 window: &mut Window,
8567 cx: &mut App,
8568) -> Option<AnyElement> {
8569 let index: u32 = blame_entry.sha.into();
8570 let mut sha_color = cx.theme().players().color_for_participant(index).cursor;
8571
8572 // If the last color we used is the same as the one we get for this line, but
8573 // the commit SHAs are different, then we try again to get a different color.
8574 if let Some((color, sha)) = *last_used_color
8575 && sha != blame_entry.sha
8576 && color == sha_color
8577 {
8578 sha_color = cx.theme().players().color_for_participant(index + 1).cursor;
8579 }
8580 last_used_color.replace((sha_color, blame_entry.sha));
8581
8582 let blame = blame.read(cx);
8583 let details = blame.details_for_entry(buffer, &blame_entry);
8584 let repository = blame.repository(cx, buffer)?;
8585 renderer.render_blame_entry(
8586 &style.text,
8587 blame_entry,
8588 details,
8589 repository,
8590 workspace.downgrade(),
8591 editor,
8592 ix,
8593 sha_color,
8594 window,
8595 cx,
8596 )
8597}
8598
8599#[derive(Debug)]
8600pub(crate) struct LineWithInvisibles {
8601 fragments: SmallVec<[LineFragment; 1]>,
8602 invisibles: Vec<Invisible>,
8603 len: usize,
8604 pub(crate) width: Pixels,
8605 font_size: Pixels,
8606}
8607
8608enum LineFragment {
8609 Text(ShapedLine),
8610 Element {
8611 id: ChunkRendererId,
8612 element: Option<AnyElement>,
8613 size: Size<Pixels>,
8614 len: usize,
8615 },
8616}
8617
8618impl fmt::Debug for LineFragment {
8619 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
8620 match self {
8621 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
8622 LineFragment::Element { size, len, .. } => f
8623 .debug_struct("Element")
8624 .field("size", size)
8625 .field("len", len)
8626 .finish(),
8627 }
8628 }
8629}
8630
8631impl LineWithInvisibles {
8632 fn from_chunks<'a>(
8633 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
8634 editor_style: &EditorStyle,
8635 max_line_len: usize,
8636 max_line_count: usize,
8637 editor_mode: &EditorMode,
8638 text_width: Pixels,
8639 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8640 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
8641 window: &mut Window,
8642 cx: &mut App,
8643 ) -> Vec<Self> {
8644 let text_style = &editor_style.text;
8645 let mut layouts = Vec::with_capacity(max_line_count);
8646 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
8647 let mut line = String::new();
8648 let mut invisibles = Vec::new();
8649 let mut width = Pixels::ZERO;
8650 let mut len = 0;
8651 let mut styles = Vec::new();
8652 let mut non_whitespace_added = false;
8653 let mut row = 0;
8654 let mut line_exceeded_max_len = false;
8655 let font_size = text_style.font_size.to_pixels(window.rem_size());
8656 let min_contrast = EditorSettings::get_global(cx).minimum_contrast_for_highlights;
8657
8658 let ellipsis = SharedString::from("β―");
8659
8660 for highlighted_chunk in chunks.chain([HighlightedChunk {
8661 text: "\n",
8662 style: None,
8663 is_tab: false,
8664 is_inlay: false,
8665 replacement: None,
8666 }]) {
8667 if let Some(replacement) = highlighted_chunk.replacement {
8668 if !line.is_empty() {
8669 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8670 let text_runs: &[TextRun] = if segments.is_empty() {
8671 &styles
8672 } else {
8673 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8674 };
8675 let shaped_line = window.text_system().shape_line(
8676 line.clone().into(),
8677 font_size,
8678 text_runs,
8679 None,
8680 );
8681 width += shaped_line.width;
8682 len += shaped_line.len;
8683 fragments.push(LineFragment::Text(shaped_line));
8684 line.clear();
8685 styles.clear();
8686 }
8687
8688 match replacement {
8689 ChunkReplacement::Renderer(renderer) => {
8690 let available_width = if renderer.constrain_width {
8691 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
8692 ellipsis.clone()
8693 } else {
8694 SharedString::from(Arc::from(highlighted_chunk.text))
8695 };
8696 let shaped_line = window.text_system().shape_line(
8697 chunk,
8698 font_size,
8699 &[text_style.to_run(highlighted_chunk.text.len())],
8700 None,
8701 );
8702 AvailableSpace::Definite(shaped_line.width)
8703 } else {
8704 AvailableSpace::MinContent
8705 };
8706
8707 let mut element = (renderer.render)(&mut ChunkRendererContext {
8708 context: cx,
8709 window,
8710 max_width: text_width,
8711 });
8712 let line_height = text_style.line_height_in_pixels(window.rem_size());
8713 let size = element.layout_as_root(
8714 size(available_width, AvailableSpace::Definite(line_height)),
8715 window,
8716 cx,
8717 );
8718
8719 width += size.width;
8720 len += highlighted_chunk.text.len();
8721 fragments.push(LineFragment::Element {
8722 id: renderer.id,
8723 element: Some(element),
8724 size,
8725 len: highlighted_chunk.text.len(),
8726 });
8727 }
8728 ChunkReplacement::Str(x) => {
8729 let text_style = if let Some(style) = highlighted_chunk.style {
8730 Cow::Owned(text_style.clone().highlight(style))
8731 } else {
8732 Cow::Borrowed(text_style)
8733 };
8734
8735 let run = TextRun {
8736 len: x.len(),
8737 font: text_style.font(),
8738 color: text_style.color,
8739 background_color: text_style.background_color,
8740 underline: text_style.underline,
8741 strikethrough: text_style.strikethrough,
8742 };
8743 let line_layout = window
8744 .text_system()
8745 .shape_line(x, font_size, &[run], None)
8746 .with_len(highlighted_chunk.text.len());
8747
8748 width += line_layout.width;
8749 len += highlighted_chunk.text.len();
8750 fragments.push(LineFragment::Text(line_layout))
8751 }
8752 }
8753 } else {
8754 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
8755 if ix > 0 {
8756 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8757 let text_runs = if segments.is_empty() {
8758 &styles
8759 } else {
8760 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8761 };
8762 let shaped_line = window.text_system().shape_line(
8763 line.clone().into(),
8764 font_size,
8765 text_runs,
8766 None,
8767 );
8768 width += shaped_line.width;
8769 len += shaped_line.len;
8770 fragments.push(LineFragment::Text(shaped_line));
8771 layouts.push(Self {
8772 width: mem::take(&mut width),
8773 len: mem::take(&mut len),
8774 fragments: mem::take(&mut fragments),
8775 invisibles: std::mem::take(&mut invisibles),
8776 font_size,
8777 });
8778
8779 line.clear();
8780 styles.clear();
8781 row += 1;
8782 line_exceeded_max_len = false;
8783 non_whitespace_added = false;
8784 if row == max_line_count {
8785 return layouts;
8786 }
8787 }
8788
8789 if !line_chunk.is_empty() && !line_exceeded_max_len {
8790 let text_style = if let Some(style) = highlighted_chunk.style {
8791 Cow::Owned(text_style.clone().highlight(style))
8792 } else {
8793 Cow::Borrowed(text_style)
8794 };
8795
8796 if line.len() + line_chunk.len() > max_line_len {
8797 let mut chunk_len = max_line_len - line.len();
8798 while !line_chunk.is_char_boundary(chunk_len) {
8799 chunk_len -= 1;
8800 }
8801 line_chunk = &line_chunk[..chunk_len];
8802 line_exceeded_max_len = true;
8803 }
8804
8805 styles.push(TextRun {
8806 len: line_chunk.len(),
8807 font: text_style.font(),
8808 color: text_style.color,
8809 background_color: text_style.background_color,
8810 underline: text_style.underline,
8811 strikethrough: text_style.strikethrough,
8812 });
8813
8814 if editor_mode.is_full() && !highlighted_chunk.is_inlay {
8815 // Line wrap pads its contents with fake whitespaces,
8816 // avoid printing them
8817 let is_soft_wrapped = is_row_soft_wrapped(row);
8818 if highlighted_chunk.is_tab {
8819 if non_whitespace_added || !is_soft_wrapped {
8820 invisibles.push(Invisible::Tab {
8821 line_start_offset: line.len(),
8822 line_end_offset: line.len() + line_chunk.len(),
8823 });
8824 }
8825 } else {
8826 invisibles.extend(line_chunk.char_indices().filter_map(
8827 |(index, c)| {
8828 let is_whitespace = c.is_whitespace();
8829 non_whitespace_added |= !is_whitespace;
8830 if is_whitespace
8831 && (non_whitespace_added || !is_soft_wrapped)
8832 {
8833 Some(Invisible::Whitespace {
8834 line_offset: line.len() + index,
8835 })
8836 } else {
8837 None
8838 }
8839 },
8840 ))
8841 }
8842 }
8843
8844 line.push_str(line_chunk);
8845 }
8846 }
8847 }
8848 }
8849
8850 layouts
8851 }
8852
8853 /// Takes text runs and non-overlapping left-to-right background ranges with color.
8854 /// Returns new text runs with adjusted contrast as per background ranges.
8855 fn split_runs_by_bg_segments(
8856 text_runs: &[TextRun],
8857 bg_segments: &[(Range<DisplayPoint>, Hsla)],
8858 min_contrast: f32,
8859 start_col_offset: usize,
8860 ) -> Vec<TextRun> {
8861 let mut output_runs: Vec<TextRun> = Vec::with_capacity(text_runs.len());
8862 let mut line_col = start_col_offset;
8863 let mut segment_ix = 0usize;
8864
8865 for text_run in text_runs.iter() {
8866 let run_start_col = line_col;
8867 let run_end_col = run_start_col + text_run.len;
8868 while segment_ix < bg_segments.len()
8869 && (bg_segments[segment_ix].0.end.column() as usize) <= run_start_col
8870 {
8871 segment_ix += 1;
8872 }
8873 let mut cursor_col = run_start_col;
8874 let mut local_segment_ix = segment_ix;
8875 while local_segment_ix < bg_segments.len() {
8876 let (range, segment_color) = &bg_segments[local_segment_ix];
8877 let segment_start_col = range.start.column() as usize;
8878 let segment_end_col = range.end.column() as usize;
8879 if segment_start_col >= run_end_col {
8880 break;
8881 }
8882 if segment_start_col > cursor_col {
8883 let span_len = segment_start_col - cursor_col;
8884 output_runs.push(TextRun {
8885 len: span_len,
8886 font: text_run.font.clone(),
8887 color: text_run.color,
8888 background_color: text_run.background_color,
8889 underline: text_run.underline,
8890 strikethrough: text_run.strikethrough,
8891 });
8892 cursor_col = segment_start_col;
8893 }
8894 let segment_slice_end_col = segment_end_col.min(run_end_col);
8895 if segment_slice_end_col > cursor_col {
8896 let new_text_color =
8897 ensure_minimum_contrast(text_run.color, *segment_color, min_contrast);
8898 output_runs.push(TextRun {
8899 len: segment_slice_end_col - cursor_col,
8900 font: text_run.font.clone(),
8901 color: new_text_color,
8902 background_color: text_run.background_color,
8903 underline: text_run.underline,
8904 strikethrough: text_run.strikethrough,
8905 });
8906 cursor_col = segment_slice_end_col;
8907 }
8908 if segment_end_col >= run_end_col {
8909 break;
8910 }
8911 local_segment_ix += 1;
8912 }
8913 if cursor_col < run_end_col {
8914 output_runs.push(TextRun {
8915 len: run_end_col - cursor_col,
8916 font: text_run.font.clone(),
8917 color: text_run.color,
8918 background_color: text_run.background_color,
8919 underline: text_run.underline,
8920 strikethrough: text_run.strikethrough,
8921 });
8922 }
8923 line_col = run_end_col;
8924 segment_ix = local_segment_ix;
8925 }
8926 output_runs
8927 }
8928
8929 fn prepaint(
8930 &mut self,
8931 line_height: Pixels,
8932 scroll_position: gpui::Point<ScrollOffset>,
8933 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
8934 row: DisplayRow,
8935 content_origin: gpui::Point<Pixels>,
8936 line_elements: &mut SmallVec<[AnyElement; 1]>,
8937 window: &mut Window,
8938 cx: &mut App,
8939 ) {
8940 let line_y = f32::from(line_height) * Pixels::from(row.as_f64() - scroll_position.y);
8941 self.prepaint_with_custom_offset(
8942 line_height,
8943 scroll_pixel_position,
8944 content_origin,
8945 line_y,
8946 line_elements,
8947 window,
8948 cx,
8949 );
8950 }
8951
8952 fn prepaint_with_custom_offset(
8953 &mut self,
8954 line_height: Pixels,
8955 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
8956 content_origin: gpui::Point<Pixels>,
8957 line_y: Pixels,
8958 line_elements: &mut SmallVec<[AnyElement; 1]>,
8959 window: &mut Window,
8960 cx: &mut App,
8961 ) {
8962 let mut fragment_origin =
8963 content_origin + gpui::point(Pixels::from(-scroll_pixel_position.x), line_y);
8964 for fragment in &mut self.fragments {
8965 match fragment {
8966 LineFragment::Text(line) => {
8967 fragment_origin.x += line.width;
8968 }
8969 LineFragment::Element { element, size, .. } => {
8970 let mut element = element
8971 .take()
8972 .expect("you can't prepaint LineWithInvisibles twice");
8973
8974 // Center the element vertically within the line.
8975 let mut element_origin = fragment_origin;
8976 element_origin.y += (line_height - size.height) / 2.;
8977 element.prepaint_at(element_origin, window, cx);
8978 line_elements.push(element);
8979
8980 fragment_origin.x += size.width;
8981 }
8982 }
8983 }
8984 }
8985
8986 fn draw(
8987 &self,
8988 layout: &EditorLayout,
8989 row: DisplayRow,
8990 content_origin: gpui::Point<Pixels>,
8991 whitespace_setting: ShowWhitespaceSetting,
8992 selection_ranges: &[Range<DisplayPoint>],
8993 window: &mut Window,
8994 cx: &mut App,
8995 ) {
8996 self.draw_with_custom_offset(
8997 layout,
8998 row,
8999 content_origin,
9000 layout.position_map.line_height
9001 * (row.as_f64() - layout.position_map.scroll_position.y) as f32,
9002 whitespace_setting,
9003 selection_ranges,
9004 window,
9005 cx,
9006 );
9007 }
9008
9009 fn draw_with_custom_offset(
9010 &self,
9011 layout: &EditorLayout,
9012 row: DisplayRow,
9013 content_origin: gpui::Point<Pixels>,
9014 line_y: Pixels,
9015 whitespace_setting: ShowWhitespaceSetting,
9016 selection_ranges: &[Range<DisplayPoint>],
9017 window: &mut Window,
9018 cx: &mut App,
9019 ) {
9020 let line_height = layout.position_map.line_height;
9021 let mut fragment_origin = content_origin
9022 + gpui::point(
9023 Pixels::from(-layout.position_map.scroll_pixel_position.x),
9024 line_y,
9025 );
9026
9027 for fragment in &self.fragments {
9028 match fragment {
9029 LineFragment::Text(line) => {
9030 line.paint(
9031 fragment_origin,
9032 line_height,
9033 layout.text_align,
9034 Some(layout.content_width),
9035 window,
9036 cx,
9037 )
9038 .log_err();
9039 fragment_origin.x += line.width;
9040 }
9041 LineFragment::Element { size, .. } => {
9042 fragment_origin.x += size.width;
9043 }
9044 }
9045 }
9046
9047 self.draw_invisibles(
9048 selection_ranges,
9049 layout,
9050 content_origin,
9051 line_y,
9052 row,
9053 line_height,
9054 whitespace_setting,
9055 window,
9056 cx,
9057 );
9058 }
9059
9060 fn draw_background(
9061 &self,
9062 layout: &EditorLayout,
9063 row: DisplayRow,
9064 content_origin: gpui::Point<Pixels>,
9065 window: &mut Window,
9066 cx: &mut App,
9067 ) {
9068 let line_height = layout.position_map.line_height;
9069 let line_y = line_height * (row.as_f64() - layout.position_map.scroll_position.y) as f32;
9070
9071 let mut fragment_origin = content_origin
9072 + gpui::point(
9073 Pixels::from(-layout.position_map.scroll_pixel_position.x),
9074 line_y,
9075 );
9076
9077 for fragment in &self.fragments {
9078 match fragment {
9079 LineFragment::Text(line) => {
9080 line.paint_background(
9081 fragment_origin,
9082 line_height,
9083 layout.text_align,
9084 Some(layout.content_width),
9085 window,
9086 cx,
9087 )
9088 .log_err();
9089 fragment_origin.x += line.width;
9090 }
9091 LineFragment::Element { size, .. } => {
9092 fragment_origin.x += size.width;
9093 }
9094 }
9095 }
9096 }
9097
9098 fn draw_invisibles(
9099 &self,
9100 selection_ranges: &[Range<DisplayPoint>],
9101 layout: &EditorLayout,
9102 content_origin: gpui::Point<Pixels>,
9103 line_y: Pixels,
9104 row: DisplayRow,
9105 line_height: Pixels,
9106 whitespace_setting: ShowWhitespaceSetting,
9107 window: &mut Window,
9108 cx: &mut App,
9109 ) {
9110 let extract_whitespace_info = |invisible: &Invisible| {
9111 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
9112 Invisible::Tab {
9113 line_start_offset,
9114 line_end_offset,
9115 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
9116 Invisible::Whitespace { line_offset } => {
9117 (*line_offset, line_offset + 1, &layout.space_invisible)
9118 }
9119 };
9120
9121 let x_offset: ScrollPixelOffset = self.x_for_index(token_offset).into();
9122 let invisible_offset: ScrollPixelOffset =
9123 ((layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0)
9124 .into();
9125 let origin = content_origin
9126 + gpui::point(
9127 Pixels::from(
9128 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
9129 ),
9130 line_y,
9131 );
9132
9133 (
9134 [token_offset, token_end_offset],
9135 Box::new(move |window: &mut Window, cx: &mut App| {
9136 invisible_symbol
9137 .paint(origin, line_height, TextAlign::Left, None, window, cx)
9138 .log_err();
9139 }),
9140 )
9141 };
9142
9143 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
9144 match whitespace_setting {
9145 ShowWhitespaceSetting::None => (),
9146 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
9147 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
9148 let invisible_point = DisplayPoint::new(row, start as u32);
9149 if !selection_ranges
9150 .iter()
9151 .any(|region| region.start <= invisible_point && invisible_point < region.end)
9152 {
9153 return;
9154 }
9155
9156 paint(window, cx);
9157 }),
9158
9159 ShowWhitespaceSetting::Trailing => {
9160 let mut previous_start = self.len;
9161 for ([start, end], paint) in invisible_iter.rev() {
9162 if previous_start != end {
9163 break;
9164 }
9165 previous_start = start;
9166 paint(window, cx);
9167 }
9168 }
9169
9170 // For a whitespace to be on a boundary, any of the following conditions need to be met:
9171 // - It is a tab
9172 // - It is adjacent to an edge (start or end)
9173 // - It is adjacent to a whitespace (left or right)
9174 ShowWhitespaceSetting::Boundary => {
9175 // 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
9176 // the above cases.
9177 // Note: We zip in the original `invisibles` to check for tab equality
9178 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
9179 for (([start, end], paint), invisible) in
9180 invisible_iter.zip_eq(self.invisibles.iter())
9181 {
9182 let should_render = match (&last_seen, invisible) {
9183 (_, Invisible::Tab { .. }) => true,
9184 (Some((_, last_end, _)), _) => *last_end == start,
9185 _ => false,
9186 };
9187
9188 if should_render || start == 0 || end == self.len {
9189 paint(window, cx);
9190
9191 // Since we are scanning from the left, we will skip over the first available whitespace that is part
9192 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
9193 if let Some((should_render_last, last_end, paint_last)) = last_seen {
9194 // Note that we need to make sure that the last one is actually adjacent
9195 if !should_render_last && last_end == start {
9196 paint_last(window, cx);
9197 }
9198 }
9199 }
9200
9201 // Manually render anything within a selection
9202 let invisible_point = DisplayPoint::new(row, start as u32);
9203 if selection_ranges.iter().any(|region| {
9204 region.start <= invisible_point && invisible_point < region.end
9205 }) {
9206 paint(window, cx);
9207 }
9208
9209 last_seen = Some((should_render, end, paint));
9210 }
9211 }
9212 }
9213 }
9214
9215 pub fn x_for_index(&self, index: usize) -> Pixels {
9216 let mut fragment_start_x = Pixels::ZERO;
9217 let mut fragment_start_index = 0;
9218
9219 for fragment in &self.fragments {
9220 match fragment {
9221 LineFragment::Text(shaped_line) => {
9222 let fragment_end_index = fragment_start_index + shaped_line.len;
9223 if index < fragment_end_index {
9224 return fragment_start_x
9225 + shaped_line.x_for_index(index - fragment_start_index);
9226 }
9227 fragment_start_x += shaped_line.width;
9228 fragment_start_index = fragment_end_index;
9229 }
9230 LineFragment::Element { len, size, .. } => {
9231 let fragment_end_index = fragment_start_index + len;
9232 if index < fragment_end_index {
9233 return fragment_start_x;
9234 }
9235 fragment_start_x += size.width;
9236 fragment_start_index = fragment_end_index;
9237 }
9238 }
9239 }
9240
9241 fragment_start_x
9242 }
9243
9244 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
9245 let mut fragment_start_x = Pixels::ZERO;
9246 let mut fragment_start_index = 0;
9247
9248 for fragment in &self.fragments {
9249 match fragment {
9250 LineFragment::Text(shaped_line) => {
9251 let fragment_end_x = fragment_start_x + shaped_line.width;
9252 if x < fragment_end_x {
9253 return Some(
9254 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
9255 );
9256 }
9257 fragment_start_x = fragment_end_x;
9258 fragment_start_index += shaped_line.len;
9259 }
9260 LineFragment::Element { len, size, .. } => {
9261 let fragment_end_x = fragment_start_x + size.width;
9262 if x < fragment_end_x {
9263 return Some(fragment_start_index);
9264 }
9265 fragment_start_index += len;
9266 fragment_start_x = fragment_end_x;
9267 }
9268 }
9269 }
9270
9271 None
9272 }
9273
9274 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
9275 let mut fragment_start_index = 0;
9276
9277 for fragment in &self.fragments {
9278 match fragment {
9279 LineFragment::Text(shaped_line) => {
9280 let fragment_end_index = fragment_start_index + shaped_line.len;
9281 if index < fragment_end_index {
9282 return shaped_line.font_id_for_index(index - fragment_start_index);
9283 }
9284 fragment_start_index = fragment_end_index;
9285 }
9286 LineFragment::Element { len, .. } => {
9287 let fragment_end_index = fragment_start_index + len;
9288 if index < fragment_end_index {
9289 return None;
9290 }
9291 fragment_start_index = fragment_end_index;
9292 }
9293 }
9294 }
9295
9296 None
9297 }
9298
9299 pub fn alignment_offset(&self, text_align: TextAlign, content_width: Pixels) -> Pixels {
9300 let line_width = self.width;
9301 match text_align {
9302 TextAlign::Left => px(0.0),
9303 TextAlign::Center => (content_width - line_width) / 2.0,
9304 TextAlign::Right => content_width - line_width,
9305 }
9306 }
9307}
9308
9309#[derive(Debug, Clone, Copy, PartialEq, Eq)]
9310enum Invisible {
9311 /// A tab character
9312 ///
9313 /// A tab character is internally represented by spaces (configured by the user's tab width)
9314 /// aligned to the nearest column, so it's necessary to store the start and end offset for
9315 /// adjacency checks.
9316 Tab {
9317 line_start_offset: usize,
9318 line_end_offset: usize,
9319 },
9320 Whitespace {
9321 line_offset: usize,
9322 },
9323}
9324
9325impl EditorElement {
9326 /// Returns the rem size to use when rendering the [`EditorElement`].
9327 ///
9328 /// This allows UI elements to scale based on the `buffer_font_size`.
9329 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
9330 match self.editor.read(cx).mode {
9331 EditorMode::Full {
9332 scale_ui_elements_with_buffer_font_size: true,
9333 ..
9334 }
9335 | EditorMode::Minimap { .. } => {
9336 let buffer_font_size = self.style.text.font_size;
9337 match buffer_font_size {
9338 AbsoluteLength::Pixels(pixels) => {
9339 let rem_size_scale = {
9340 // Our default UI font size is 14px on a 16px base scale.
9341 // This means the default UI font size is 0.875rems.
9342 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
9343
9344 // We then determine the delta between a single rem and the default font
9345 // size scale.
9346 let default_font_size_delta = 1. - default_font_size_scale;
9347
9348 // Finally, we add this delta to 1rem to get the scale factor that
9349 // should be used to scale up the UI.
9350 1. + default_font_size_delta
9351 };
9352
9353 Some(pixels * rem_size_scale)
9354 }
9355 AbsoluteLength::Rems(rems) => {
9356 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
9357 }
9358 }
9359 }
9360 // We currently use single-line and auto-height editors in UI contexts,
9361 // so we don't want to scale everything with the buffer font size, as it
9362 // ends up looking off.
9363 _ => None,
9364 }
9365 }
9366
9367 fn editor_with_selections(&self, cx: &App) -> Option<Entity<Editor>> {
9368 if let EditorMode::Minimap { parent } = self.editor.read(cx).mode() {
9369 parent.upgrade()
9370 } else {
9371 Some(self.editor.clone())
9372 }
9373 }
9374}
9375
9376#[derive(Default)]
9377pub struct EditorRequestLayoutState {
9378 // We use prepaint depth to limit the number of times prepaint is
9379 // called recursively. We need this so that we can update stale
9380 // data for e.g. block heights in block map.
9381 prepaint_depth: Rc<Cell<usize>>,
9382}
9383
9384impl EditorRequestLayoutState {
9385 // In ideal conditions we only need one more subsequent prepaint call for resize to take effect.
9386 // i.e. MAX_PREPAINT_DEPTH = 2, but since moving blocks inline (place_near), more lines from
9387 // below get exposed, and we end up querying blocks for those lines too in subsequent renders.
9388 // Setting MAX_PREPAINT_DEPTH = 3, passes all tests. Just to be on the safe side we set it to 5, so
9389 // that subsequent shrinking does not lead to incorrect block placing.
9390 const MAX_PREPAINT_DEPTH: usize = 5;
9391
9392 fn increment_prepaint_depth(&self) -> EditorPrepaintGuard {
9393 let depth = self.prepaint_depth.get();
9394 self.prepaint_depth.set(depth + 1);
9395 EditorPrepaintGuard {
9396 prepaint_depth: self.prepaint_depth.clone(),
9397 }
9398 }
9399
9400 fn can_prepaint(&self) -> bool {
9401 self.prepaint_depth.get() < Self::MAX_PREPAINT_DEPTH
9402 }
9403}
9404
9405struct EditorPrepaintGuard {
9406 prepaint_depth: Rc<Cell<usize>>,
9407}
9408
9409impl Drop for EditorPrepaintGuard {
9410 fn drop(&mut self) {
9411 let depth = self.prepaint_depth.get();
9412 self.prepaint_depth.set(depth.saturating_sub(1));
9413 }
9414}
9415
9416impl Element for EditorElement {
9417 type RequestLayoutState = EditorRequestLayoutState;
9418 type PrepaintState = EditorLayout;
9419
9420 fn id(&self) -> Option<ElementId> {
9421 None
9422 }
9423
9424 fn source_location(&self) -> Option<&'static core::panic::Location<'static>> {
9425 None
9426 }
9427
9428 fn request_layout(
9429 &mut self,
9430 _: Option<&GlobalElementId>,
9431 _inspector_id: Option<&gpui::InspectorElementId>,
9432 window: &mut Window,
9433 cx: &mut App,
9434 ) -> (gpui::LayoutId, Self::RequestLayoutState) {
9435 let rem_size = self.rem_size(cx);
9436 window.with_rem_size(rem_size, |window| {
9437 self.editor.update(cx, |editor, cx| {
9438 editor.set_style(self.style.clone(), window, cx);
9439
9440 let layout_id = match editor.mode {
9441 EditorMode::SingleLine => {
9442 let rem_size = window.rem_size();
9443 let height = self.style.text.line_height_in_pixels(rem_size);
9444 let mut style = Style::default();
9445 style.size.height = height.into();
9446 style.size.width = relative(1.).into();
9447 window.request_layout(style, None, cx)
9448 }
9449 EditorMode::AutoHeight {
9450 min_lines,
9451 max_lines,
9452 } => {
9453 let editor_handle = cx.entity();
9454 window.request_measured_layout(
9455 Style::default(),
9456 move |known_dimensions, available_space, window, cx| {
9457 editor_handle
9458 .update(cx, |editor, cx| {
9459 compute_auto_height_layout(
9460 editor,
9461 min_lines,
9462 max_lines,
9463 known_dimensions,
9464 available_space.width,
9465 window,
9466 cx,
9467 )
9468 })
9469 .unwrap_or_default()
9470 },
9471 )
9472 }
9473 EditorMode::Minimap { .. } => {
9474 let mut style = Style::default();
9475 style.size.width = relative(1.).into();
9476 style.size.height = relative(1.).into();
9477 window.request_layout(style, None, cx)
9478 }
9479 EditorMode::Full {
9480 sizing_behavior, ..
9481 } => {
9482 let mut style = Style::default();
9483 style.size.width = relative(1.).into();
9484 if sizing_behavior == SizingBehavior::SizeByContent {
9485 let snapshot = editor.snapshot(window, cx);
9486 let line_height =
9487 self.style.text.line_height_in_pixels(window.rem_size());
9488 let scroll_height =
9489 (snapshot.max_point().row().next_row().0 as f32) * line_height;
9490 style.size.height = scroll_height.into();
9491 } else {
9492 style.size.height = relative(1.).into();
9493 }
9494 window.request_layout(style, None, cx)
9495 }
9496 };
9497
9498 (layout_id, EditorRequestLayoutState::default())
9499 })
9500 })
9501 }
9502
9503 fn prepaint(
9504 &mut self,
9505 _: Option<&GlobalElementId>,
9506 _inspector_id: Option<&gpui::InspectorElementId>,
9507 bounds: Bounds<Pixels>,
9508 request_layout: &mut Self::RequestLayoutState,
9509 window: &mut Window,
9510 cx: &mut App,
9511 ) -> Self::PrepaintState {
9512 let _prepaint_depth_guard = request_layout.increment_prepaint_depth();
9513 let text_style = TextStyleRefinement {
9514 font_size: Some(self.style.text.font_size),
9515 line_height: Some(self.style.text.line_height),
9516 ..Default::default()
9517 };
9518
9519 let is_minimap = self.editor.read(cx).mode.is_minimap();
9520 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
9521
9522 if !is_minimap {
9523 let focus_handle = self.editor.focus_handle(cx);
9524 window.set_view_id(self.editor.entity_id());
9525 window.set_focus_handle(&focus_handle, cx);
9526 }
9527
9528 let rem_size = self.rem_size(cx);
9529 window.with_rem_size(rem_size, |window| {
9530 window.with_text_style(Some(text_style), |window| {
9531 window.with_content_mask(Some(ContentMask { bounds }), |window| {
9532 let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| {
9533 (editor.snapshot(window, cx), editor.read_only(cx))
9534 });
9535 let style = &self.style;
9536
9537 let rem_size = window.rem_size();
9538 let font_id = window.text_system().resolve_font(&style.text.font());
9539 let font_size = style.text.font_size.to_pixels(rem_size);
9540 let line_height = style.text.line_height_in_pixels(rem_size);
9541 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
9542 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
9543 let em_layout_width = window.text_system().em_layout_width(font_id, font_size);
9544 let glyph_grid_cell = size(em_advance, line_height);
9545
9546 let gutter_dimensions =
9547 snapshot.gutter_dimensions(font_id, font_size, style, window, cx);
9548 let text_width = bounds.size.width - gutter_dimensions.width;
9549
9550 let settings = EditorSettings::get_global(cx);
9551 let scrollbars_shown = settings.scrollbar.show != ShowScrollbar::Never;
9552 let vertical_scrollbar_width = (scrollbars_shown
9553 && settings.scrollbar.axes.vertical
9554 && self.editor.read(cx).show_scrollbars.vertical)
9555 .then_some(style.scrollbar_width)
9556 .unwrap_or_default();
9557 let minimap_width = self
9558 .get_minimap_width(
9559 &settings.minimap,
9560 scrollbars_shown,
9561 text_width,
9562 em_width,
9563 font_size,
9564 rem_size,
9565 cx,
9566 )
9567 .unwrap_or_default();
9568
9569 let right_margin = minimap_width + vertical_scrollbar_width;
9570
9571 let editor_width =
9572 text_width - gutter_dimensions.margin - 2 * em_width - right_margin;
9573 let editor_margins = EditorMargins {
9574 gutter: gutter_dimensions,
9575 right: right_margin,
9576 };
9577
9578 snapshot = self.editor.update(cx, |editor, cx| {
9579 editor.last_bounds = Some(bounds);
9580 editor.gutter_dimensions = gutter_dimensions;
9581 editor.set_visible_line_count(
9582 (bounds.size.height / line_height) as f64,
9583 window,
9584 cx,
9585 );
9586 editor.set_visible_column_count(f64::from(editor_width / em_advance));
9587
9588 if matches!(
9589 editor.mode,
9590 EditorMode::AutoHeight { .. } | EditorMode::Minimap { .. }
9591 ) {
9592 snapshot
9593 } else {
9594 let wrap_width = calculate_wrap_width(
9595 editor.soft_wrap_mode(cx),
9596 editor_width,
9597 em_layout_width,
9598 );
9599
9600 if editor.set_wrap_width(wrap_width, cx) {
9601 editor.snapshot(window, cx)
9602 } else {
9603 snapshot
9604 }
9605 }
9606 });
9607
9608 let hitbox = window.insert_hitbox(bounds, HitboxBehavior::Normal);
9609 let gutter_hitbox = window.insert_hitbox(
9610 gutter_bounds(bounds, gutter_dimensions),
9611 HitboxBehavior::Normal,
9612 );
9613 let text_hitbox = window.insert_hitbox(
9614 Bounds {
9615 origin: gutter_hitbox.top_right(),
9616 size: size(text_width, bounds.size.height),
9617 },
9618 HitboxBehavior::Normal,
9619 );
9620
9621 // Offset the content_bounds from the text_bounds by the gutter margin (which
9622 // is roughly half a character wide) to make hit testing work more like how we want.
9623 let content_offset = point(editor_margins.gutter.margin, Pixels::ZERO);
9624 let content_origin = text_hitbox.origin + content_offset;
9625
9626 let height_in_lines = f64::from(bounds.size.height / line_height);
9627 let max_row = snapshot.max_point().row().as_f64();
9628
9629 // Calculate how much of the editor is clipped by parent containers (e.g., List).
9630 // This allows us to only render lines that are actually visible, which is
9631 // critical for performance when large AutoHeight editors are inside Lists.
9632 let visible_bounds = window.content_mask().bounds;
9633 let clipped_top = (visible_bounds.origin.y - bounds.origin.y).max(px(0.));
9634 let clipped_top_in_lines = f64::from(clipped_top / line_height);
9635 let visible_height_in_lines =
9636 f64::from(visible_bounds.size.height / line_height);
9637
9638 // The max scroll position for the top of the window
9639 let max_scroll_top = if matches!(
9640 snapshot.mode,
9641 EditorMode::SingleLine
9642 | EditorMode::AutoHeight { .. }
9643 | EditorMode::Full {
9644 sizing_behavior: SizingBehavior::ExcludeOverscrollMargin
9645 | SizingBehavior::SizeByContent,
9646 ..
9647 }
9648 ) {
9649 (max_row - height_in_lines + 1.).max(0.)
9650 } else {
9651 let settings = EditorSettings::get_global(cx);
9652 match settings.scroll_beyond_last_line {
9653 ScrollBeyondLastLine::OnePage => max_row,
9654 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
9655 ScrollBeyondLastLine::VerticalScrollMargin => {
9656 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
9657 .max(0.)
9658 }
9659 }
9660 };
9661
9662 let (
9663 autoscroll_request,
9664 autoscroll_containing_element,
9665 needs_horizontal_autoscroll,
9666 ) = self.editor.update(cx, |editor, cx| {
9667 let autoscroll_request = editor.scroll_manager.take_autoscroll_request();
9668
9669 let autoscroll_containing_element =
9670 autoscroll_request.is_some() || editor.has_pending_selection();
9671
9672 let (needs_horizontal_autoscroll, was_scrolled) = editor
9673 .autoscroll_vertically(
9674 bounds,
9675 line_height,
9676 max_scroll_top,
9677 autoscroll_request,
9678 window,
9679 cx,
9680 );
9681 if was_scrolled.0 {
9682 snapshot = editor.snapshot(window, cx);
9683 }
9684 (
9685 autoscroll_request,
9686 autoscroll_containing_element,
9687 needs_horizontal_autoscroll,
9688 )
9689 });
9690
9691 let mut scroll_position = snapshot.scroll_position();
9692 // The scroll position is a fractional point, the whole number of which represents
9693 // the top of the window in terms of display rows.
9694 // We add clipped_top_in_lines to skip rows that are clipped by parent containers,
9695 // but we don't modify scroll_position itself since the parent handles positioning.
9696 let max_row = snapshot.max_point().row();
9697 let start_row = cmp::min(
9698 DisplayRow((scroll_position.y + clipped_top_in_lines).floor() as u32),
9699 max_row,
9700 );
9701 let end_row = cmp::min(
9702 (scroll_position.y + clipped_top_in_lines + visible_height_in_lines).ceil()
9703 as u32,
9704 max_row.next_row().0,
9705 );
9706 let end_row = DisplayRow(end_row);
9707
9708 let row_infos = snapshot // note we only get the visual range
9709 .row_infos(start_row)
9710 .take((start_row..end_row).len())
9711 .collect::<Vec<RowInfo>>();
9712 let is_row_soft_wrapped = |row: usize| {
9713 row_infos
9714 .get(row)
9715 .is_none_or(|info| info.buffer_row.is_none())
9716 };
9717
9718 let start_anchor = if start_row == Default::default() {
9719 Anchor::min()
9720 } else {
9721 snapshot.buffer_snapshot().anchor_before(
9722 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
9723 )
9724 };
9725 let end_anchor = if end_row > max_row {
9726 Anchor::max()
9727 } else {
9728 snapshot.buffer_snapshot().anchor_before(
9729 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
9730 )
9731 };
9732
9733 let mut highlighted_rows = self
9734 .editor
9735 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
9736
9737 let is_light = cx.theme().appearance().is_light();
9738
9739 let mut highlighted_ranges = self
9740 .editor_with_selections(cx)
9741 .map(|editor| {
9742 editor.read(cx).background_highlights_in_range(
9743 start_anchor..end_anchor,
9744 &snapshot.display_snapshot,
9745 cx.theme(),
9746 )
9747 })
9748 .unwrap_or_default();
9749
9750 for (ix, row_info) in row_infos.iter().enumerate() {
9751 let Some(diff_status) = row_info.diff_status else {
9752 continue;
9753 };
9754
9755 let background_color = match diff_status.kind {
9756 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
9757 DiffHunkStatusKind::Deleted => {
9758 cx.theme().colors().version_control_deleted
9759 }
9760 DiffHunkStatusKind::Modified => {
9761 debug_panic!("modified diff status for row info");
9762 continue;
9763 }
9764 };
9765
9766 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
9767
9768 let hollow_highlight = LineHighlight {
9769 background: (background_color.opacity(if is_light {
9770 0.08
9771 } else {
9772 0.06
9773 }))
9774 .into(),
9775 border: Some(if is_light {
9776 background_color.opacity(0.48)
9777 } else {
9778 background_color.opacity(0.36)
9779 }),
9780 include_gutter: true,
9781 type_id: None,
9782 };
9783
9784 let filled_highlight = LineHighlight {
9785 background: solid_background(background_color.opacity(hunk_opacity)),
9786 border: None,
9787 include_gutter: true,
9788 type_id: None,
9789 };
9790
9791 let background = if Self::diff_hunk_hollow(diff_status, cx) {
9792 hollow_highlight
9793 } else {
9794 filled_highlight
9795 };
9796
9797 let base_display_point =
9798 DisplayPoint::new(start_row + DisplayRow(ix as u32), 0);
9799
9800 highlighted_rows
9801 .entry(base_display_point.row())
9802 .or_insert(background);
9803 }
9804
9805 // Add diff review drag selection highlight to text area
9806 if let Some(drag_state) = &self.editor.read(cx).diff_review_drag_state {
9807 let range = drag_state.row_range(&snapshot.display_snapshot);
9808 let start_row = range.start().0;
9809 let end_row = range.end().0;
9810 let drag_highlight_color =
9811 cx.theme().colors().editor_active_line_background;
9812 let drag_highlight = LineHighlight {
9813 background: solid_background(drag_highlight_color),
9814 border: Some(cx.theme().colors().border_focused),
9815 include_gutter: true,
9816 type_id: None,
9817 };
9818 for row_num in start_row..=end_row {
9819 highlighted_rows
9820 .entry(DisplayRow(row_num))
9821 .or_insert(drag_highlight);
9822 }
9823 }
9824
9825 let highlighted_gutter_ranges =
9826 self.editor.read(cx).gutter_highlights_in_range(
9827 start_anchor..end_anchor,
9828 &snapshot.display_snapshot,
9829 cx,
9830 );
9831
9832 let document_colors = self
9833 .editor
9834 .read(cx)
9835 .colors
9836 .as_ref()
9837 .map(|colors| colors.editor_display_highlights(&snapshot));
9838 let redacted_ranges = self.editor.read(cx).redacted_ranges(
9839 start_anchor..end_anchor,
9840 &snapshot.display_snapshot,
9841 cx,
9842 );
9843
9844 let (local_selections, selected_buffer_ids, latest_selection_anchors): (
9845 Vec<Selection<Point>>,
9846 Vec<BufferId>,
9847 HashMap<BufferId, Anchor>,
9848 ) = self
9849 .editor_with_selections(cx)
9850 .map(|editor| {
9851 editor.update(cx, |editor, cx| {
9852 let all_selections =
9853 editor.selections.all::<Point>(&snapshot.display_snapshot);
9854 let all_anchor_selections =
9855 editor.selections.all_anchors(&snapshot.display_snapshot);
9856 let selected_buffer_ids =
9857 if editor.buffer_kind(cx) == ItemBufferKind::Singleton {
9858 Vec::new()
9859 } else {
9860 let mut selected_buffer_ids =
9861 Vec::with_capacity(all_selections.len());
9862
9863 for selection in all_selections {
9864 for buffer_id in snapshot
9865 .buffer_snapshot()
9866 .buffer_ids_for_range(selection.range())
9867 {
9868 if selected_buffer_ids.last() != Some(&buffer_id) {
9869 selected_buffer_ids.push(buffer_id);
9870 }
9871 }
9872 }
9873
9874 selected_buffer_ids
9875 };
9876
9877 let mut selections = editor.selections.disjoint_in_range(
9878 start_anchor..end_anchor,
9879 &snapshot.display_snapshot,
9880 );
9881 selections
9882 .extend(editor.selections.pending(&snapshot.display_snapshot));
9883
9884 let mut anchors_by_buffer: HashMap<BufferId, (usize, Anchor)> =
9885 HashMap::default();
9886 for selection in all_anchor_selections.iter() {
9887 let head = selection.head();
9888 if let Some(buffer_id) = head.text_anchor.buffer_id {
9889 anchors_by_buffer
9890 .entry(buffer_id)
9891 .and_modify(|(latest_id, latest_anchor)| {
9892 if selection.id > *latest_id {
9893 *latest_id = selection.id;
9894 *latest_anchor = head;
9895 }
9896 })
9897 .or_insert((selection.id, head));
9898 }
9899 }
9900 let latest_selection_anchors = anchors_by_buffer
9901 .into_iter()
9902 .map(|(buffer_id, (_, anchor))| (buffer_id, anchor))
9903 .collect();
9904
9905 (selections, selected_buffer_ids, latest_selection_anchors)
9906 })
9907 })
9908 .unwrap_or_else(|| (Vec::new(), Vec::new(), HashMap::default()));
9909
9910 let (selections, mut active_rows, newest_selection_head) = self
9911 .layout_selections(
9912 start_anchor,
9913 end_anchor,
9914 &local_selections,
9915 &snapshot,
9916 start_row,
9917 end_row,
9918 window,
9919 cx,
9920 );
9921
9922 // relative rows are based on newest selection, even outside the visible area
9923 let current_selection_head = self.editor.update(cx, |editor, cx| {
9924 (editor.selections.count() != 0).then(|| {
9925 let newest = editor
9926 .selections
9927 .newest::<Point>(&editor.display_snapshot(cx));
9928
9929 SelectionLayout::new(
9930 newest,
9931 editor.selections.line_mode(),
9932 editor.cursor_offset_on_selection,
9933 editor.cursor_shape,
9934 &snapshot,
9935 true,
9936 true,
9937 None,
9938 )
9939 .head
9940 .row()
9941 })
9942 });
9943
9944 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
9945 editor.active_breakpoints(start_row..end_row, window, cx)
9946 });
9947 for (display_row, (_, bp, state)) in &breakpoint_rows {
9948 if bp.is_enabled() && state.is_none_or(|s| s.verified) {
9949 active_rows.entry(*display_row).or_default().breakpoint = true;
9950 }
9951 }
9952
9953 let line_numbers = self.layout_line_numbers(
9954 Some(&gutter_hitbox),
9955 gutter_dimensions,
9956 line_height,
9957 scroll_position,
9958 start_row..end_row,
9959 &row_infos,
9960 &active_rows,
9961 current_selection_head,
9962 &snapshot,
9963 window,
9964 cx,
9965 );
9966
9967 // We add the gutter breakpoint indicator to breakpoint_rows after painting
9968 // line numbers so we don't paint a line number debug accent color if a user
9969 // has their mouse over that line when a breakpoint isn't there
9970 self.editor.update(cx, |editor, _| {
9971 if let Some(phantom_breakpoint) = &mut editor
9972 .gutter_breakpoint_indicator
9973 .0
9974 .filter(|phantom_breakpoint| phantom_breakpoint.is_active)
9975 {
9976 // Is there a non-phantom breakpoint on this line?
9977 phantom_breakpoint.collides_with_existing_breakpoint = true;
9978 breakpoint_rows
9979 .entry(phantom_breakpoint.display_row)
9980 .or_insert_with(|| {
9981 let position = snapshot.display_point_to_anchor(
9982 DisplayPoint::new(phantom_breakpoint.display_row, 0),
9983 Bias::Right,
9984 );
9985 let breakpoint = Breakpoint::new_standard();
9986 phantom_breakpoint.collides_with_existing_breakpoint = false;
9987 (position, breakpoint, None)
9988 });
9989 }
9990 });
9991
9992 let mut expand_toggles =
9993 window.with_element_namespace("expand_toggles", |window| {
9994 self.layout_expand_toggles(
9995 &gutter_hitbox,
9996 gutter_dimensions,
9997 em_width,
9998 line_height,
9999 scroll_position,
10000 &row_infos,
10001 window,
10002 cx,
10003 )
10004 });
10005
10006 let mut crease_toggles =
10007 window.with_element_namespace("crease_toggles", |window| {
10008 self.layout_crease_toggles(
10009 start_row..end_row,
10010 &row_infos,
10011 &active_rows,
10012 &snapshot,
10013 window,
10014 cx,
10015 )
10016 });
10017 let crease_trailers =
10018 window.with_element_namespace("crease_trailers", |window| {
10019 self.layout_crease_trailers(
10020 row_infos.iter().cloned(),
10021 &snapshot,
10022 window,
10023 cx,
10024 )
10025 });
10026
10027 let display_hunks = self.layout_gutter_diff_hunks(
10028 line_height,
10029 &gutter_hitbox,
10030 start_row..end_row,
10031 &snapshot,
10032 window,
10033 cx,
10034 );
10035
10036 Self::layout_word_diff_highlights(
10037 &display_hunks,
10038 &row_infos,
10039 start_row,
10040 &snapshot,
10041 &mut highlighted_ranges,
10042 cx,
10043 );
10044
10045 let merged_highlighted_ranges =
10046 if let Some((_, colors)) = document_colors.as_ref() {
10047 &highlighted_ranges
10048 .clone()
10049 .into_iter()
10050 .chain(colors.clone())
10051 .collect()
10052 } else {
10053 &highlighted_ranges
10054 };
10055 let bg_segments_per_row = Self::bg_segments_per_row(
10056 start_row..end_row,
10057 &selections,
10058 &merged_highlighted_ranges,
10059 self.style.background,
10060 );
10061
10062 let mut line_layouts = Self::layout_lines(
10063 start_row..end_row,
10064 &snapshot,
10065 &self.style,
10066 editor_width,
10067 is_row_soft_wrapped,
10068 &bg_segments_per_row,
10069 window,
10070 cx,
10071 );
10072 let new_renderer_widths = (!is_minimap).then(|| {
10073 line_layouts
10074 .iter()
10075 .flat_map(|layout| &layout.fragments)
10076 .filter_map(|fragment| {
10077 if let LineFragment::Element { id, size, .. } = fragment {
10078 Some((*id, size.width))
10079 } else {
10080 None
10081 }
10082 })
10083 });
10084 if new_renderer_widths.is_some_and(|new_renderer_widths| {
10085 self.editor.update(cx, |editor, cx| {
10086 editor.update_renderer_widths(new_renderer_widths, cx)
10087 })
10088 }) {
10089 // If the fold widths have changed, we need to prepaint
10090 // the element again to account for any changes in
10091 // wrapping.
10092 if request_layout.can_prepaint() {
10093 return self.prepaint(
10094 None,
10095 _inspector_id,
10096 bounds,
10097 request_layout,
10098 window,
10099 cx,
10100 );
10101 } else {
10102 debug_panic!(concat!(
10103 "skipping recursive prepaint at max depth. ",
10104 "renderer widths may be stale."
10105 ));
10106 }
10107 }
10108
10109 let longest_line_blame_width = self
10110 .editor
10111 .update(cx, |editor, cx| {
10112 if !editor.show_git_blame_inline {
10113 return None;
10114 }
10115 let blame = editor.blame.as_ref()?;
10116 let (_, blame_entry) = blame
10117 .update(cx, |blame, cx| {
10118 let row_infos =
10119 snapshot.row_infos(snapshot.longest_row()).next()?;
10120 blame.blame_for_rows(&[row_infos], cx).next()
10121 })
10122 .flatten()?;
10123 let mut element = render_inline_blame_entry(blame_entry, style, cx)?;
10124 let inline_blame_padding =
10125 ProjectSettings::get_global(cx).git.inline_blame.padding as f32
10126 * em_advance;
10127 Some(
10128 element
10129 .layout_as_root(AvailableSpace::min_size(), window, cx)
10130 .width
10131 + inline_blame_padding,
10132 )
10133 })
10134 .unwrap_or(Pixels::ZERO);
10135
10136 let longest_line_width = layout_line(
10137 snapshot.longest_row(),
10138 &snapshot,
10139 style,
10140 editor_width,
10141 is_row_soft_wrapped,
10142 window,
10143 cx,
10144 )
10145 .width;
10146
10147 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
10148 text_hitbox.bounds,
10149 glyph_grid_cell,
10150 size(
10151 longest_line_width,
10152 Pixels::from(max_row.as_f64() * f64::from(line_height)),
10153 ),
10154 longest_line_blame_width,
10155 EditorSettings::get_global(cx),
10156 );
10157
10158 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
10159
10160 let sticky_header_excerpt = if snapshot.buffer_snapshot().show_headers() {
10161 snapshot.sticky_header_excerpt(scroll_position.y)
10162 } else {
10163 None
10164 };
10165 let sticky_header_excerpt_id =
10166 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
10167
10168 let blocks = (!is_minimap)
10169 .then(|| {
10170 window.with_element_namespace("blocks", |window| {
10171 self.render_blocks(
10172 start_row..end_row,
10173 &snapshot,
10174 &hitbox,
10175 &text_hitbox,
10176 editor_width,
10177 &mut scroll_width,
10178 &editor_margins,
10179 em_width,
10180 gutter_dimensions.full_width(),
10181 line_height,
10182 &mut line_layouts,
10183 &local_selections,
10184 &selected_buffer_ids,
10185 &latest_selection_anchors,
10186 is_row_soft_wrapped,
10187 sticky_header_excerpt_id,
10188 window,
10189 cx,
10190 )
10191 })
10192 })
10193 .unwrap_or_default();
10194 let RenderBlocksOutput {
10195 mut blocks,
10196 row_block_types,
10197 resized_blocks,
10198 } = blocks;
10199 if let Some(resized_blocks) = resized_blocks {
10200 self.editor.update(cx, |editor, cx| {
10201 editor.resize_blocks(
10202 resized_blocks,
10203 autoscroll_request.map(|(autoscroll, _)| autoscroll),
10204 cx,
10205 )
10206 });
10207 if request_layout.can_prepaint() {
10208 return self.prepaint(
10209 None,
10210 _inspector_id,
10211 bounds,
10212 request_layout,
10213 window,
10214 cx,
10215 );
10216 } else {
10217 debug_panic!(concat!(
10218 "skipping recursive prepaint at max depth. ",
10219 "block layout may be stale."
10220 ));
10221 }
10222 }
10223
10224 let sticky_buffer_header = if self.should_show_buffer_headers() {
10225 sticky_header_excerpt.map(|sticky_header_excerpt| {
10226 window.with_element_namespace("blocks", |window| {
10227 self.layout_sticky_buffer_header(
10228 sticky_header_excerpt,
10229 scroll_position,
10230 line_height,
10231 right_margin,
10232 &snapshot,
10233 &hitbox,
10234 &selected_buffer_ids,
10235 &blocks,
10236 &latest_selection_anchors,
10237 window,
10238 cx,
10239 )
10240 })
10241 })
10242 } else {
10243 None
10244 };
10245
10246 let start_buffer_row =
10247 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot()).row);
10248 let end_buffer_row =
10249 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot()).row);
10250
10251 let scroll_max: gpui::Point<ScrollPixelOffset> = point(
10252 ScrollPixelOffset::from(
10253 ((scroll_width - editor_width) / em_layout_width).max(0.0),
10254 ),
10255 max_scroll_top,
10256 );
10257
10258 self.editor.update(cx, |editor, cx| {
10259 if editor.scroll_manager.clamp_scroll_left(scroll_max.x, cx) {
10260 scroll_position.x = scroll_max.x.min(scroll_position.x);
10261 }
10262
10263 if needs_horizontal_autoscroll.0
10264 && let Some(new_scroll_position) = editor.autoscroll_horizontally(
10265 start_row,
10266 editor_width,
10267 scroll_width,
10268 em_advance,
10269 &line_layouts,
10270 autoscroll_request,
10271 window,
10272 cx,
10273 )
10274 {
10275 scroll_position = new_scroll_position;
10276 }
10277 });
10278
10279 let scroll_pixel_position = point(
10280 scroll_position.x * f64::from(em_layout_width),
10281 scroll_position.y * f64::from(line_height),
10282 );
10283 let sticky_headers = if !is_minimap
10284 && is_singleton
10285 && EditorSettings::get_global(cx).sticky_scroll.enabled
10286 {
10287 let relative = self.editor.read(cx).relative_line_numbers(cx);
10288 self.layout_sticky_headers(
10289 &snapshot,
10290 editor_width,
10291 is_row_soft_wrapped,
10292 line_height,
10293 scroll_pixel_position,
10294 content_origin,
10295 &gutter_dimensions,
10296 &gutter_hitbox,
10297 &text_hitbox,
10298 relative,
10299 current_selection_head,
10300 window,
10301 cx,
10302 )
10303 } else {
10304 None
10305 };
10306 self.editor.update(cx, |editor, _| {
10307 editor.scroll_manager.set_sticky_header_line_count(
10308 sticky_headers.as_ref().map_or(0, |h| h.lines.len()),
10309 );
10310 });
10311 let indent_guides = self.layout_indent_guides(
10312 content_origin,
10313 text_hitbox.origin,
10314 start_buffer_row..end_buffer_row,
10315 scroll_pixel_position,
10316 line_height,
10317 &snapshot,
10318 window,
10319 cx,
10320 );
10321
10322 let crease_trailers =
10323 window.with_element_namespace("crease_trailers", |window| {
10324 self.prepaint_crease_trailers(
10325 crease_trailers,
10326 &line_layouts,
10327 line_height,
10328 content_origin,
10329 scroll_pixel_position,
10330 em_width,
10331 window,
10332 cx,
10333 )
10334 });
10335
10336 let (edit_prediction_popover, edit_prediction_popover_origin) = self
10337 .editor
10338 .update(cx, |editor, cx| {
10339 editor.render_edit_prediction_popover(
10340 &text_hitbox.bounds,
10341 content_origin,
10342 right_margin,
10343 &snapshot,
10344 start_row..end_row,
10345 scroll_position.y,
10346 scroll_position.y + height_in_lines,
10347 &line_layouts,
10348 line_height,
10349 scroll_position,
10350 scroll_pixel_position,
10351 newest_selection_head,
10352 editor_width,
10353 style,
10354 window,
10355 cx,
10356 )
10357 })
10358 .unzip();
10359
10360 let mut inline_diagnostics = self.layout_inline_diagnostics(
10361 &line_layouts,
10362 &crease_trailers,
10363 &row_block_types,
10364 content_origin,
10365 scroll_position,
10366 scroll_pixel_position,
10367 edit_prediction_popover_origin,
10368 start_row,
10369 end_row,
10370 line_height,
10371 em_width,
10372 style,
10373 window,
10374 cx,
10375 );
10376
10377 let mut inline_blame_layout = None;
10378 let mut inline_code_actions = None;
10379 if let Some(newest_selection_head) = newest_selection_head {
10380 let display_row = newest_selection_head.row();
10381 if (start_row..end_row).contains(&display_row)
10382 && !row_block_types.contains_key(&display_row)
10383 {
10384 inline_code_actions = self.layout_inline_code_actions(
10385 newest_selection_head,
10386 content_origin,
10387 scroll_position,
10388 scroll_pixel_position,
10389 line_height,
10390 &snapshot,
10391 window,
10392 cx,
10393 );
10394
10395 let line_ix = display_row.minus(start_row) as usize;
10396 if let (Some(row_info), Some(line_layout), Some(crease_trailer)) = (
10397 row_infos.get(line_ix),
10398 line_layouts.get(line_ix),
10399 crease_trailers.get(line_ix),
10400 ) {
10401 let crease_trailer_layout = crease_trailer.as_ref();
10402 if let Some(layout) = self.layout_inline_blame(
10403 display_row,
10404 row_info,
10405 line_layout,
10406 crease_trailer_layout,
10407 em_width,
10408 content_origin,
10409 scroll_position,
10410 scroll_pixel_position,
10411 line_height,
10412 window,
10413 cx,
10414 ) {
10415 inline_blame_layout = Some(layout);
10416 // Blame overrides inline diagnostics
10417 inline_diagnostics.remove(&display_row);
10418 }
10419 } else {
10420 log::error!(
10421 "bug: line_ix {} is out of bounds - row_infos.len(): {}, \
10422 line_layouts.len(): {}, \
10423 crease_trailers.len(): {}",
10424 line_ix,
10425 row_infos.len(),
10426 line_layouts.len(),
10427 crease_trailers.len(),
10428 );
10429 }
10430 }
10431 }
10432
10433 let blamed_display_rows = self.layout_blame_entries(
10434 &row_infos,
10435 em_width,
10436 scroll_position,
10437 line_height,
10438 &gutter_hitbox,
10439 gutter_dimensions.git_blame_entries_width,
10440 window,
10441 cx,
10442 );
10443
10444 let line_elements = self.prepaint_lines(
10445 start_row,
10446 &mut line_layouts,
10447 line_height,
10448 scroll_position,
10449 scroll_pixel_position,
10450 content_origin,
10451 window,
10452 cx,
10453 );
10454
10455 window.with_element_namespace("blocks", |window| {
10456 self.layout_blocks(
10457 &mut blocks,
10458 &hitbox,
10459 line_height,
10460 scroll_position,
10461 scroll_pixel_position,
10462 window,
10463 cx,
10464 );
10465 });
10466
10467 let cursors = self.collect_cursors(&snapshot, cx);
10468 let visible_row_range = start_row..end_row;
10469 let non_visible_cursors = cursors
10470 .iter()
10471 .any(|c| !visible_row_range.contains(&c.0.row()));
10472
10473 let visible_cursors = self.layout_visible_cursors(
10474 &snapshot,
10475 &selections,
10476 &row_block_types,
10477 start_row..end_row,
10478 &line_layouts,
10479 &text_hitbox,
10480 content_origin,
10481 scroll_position,
10482 scroll_pixel_position,
10483 line_height,
10484 em_width,
10485 em_advance,
10486 autoscroll_containing_element,
10487 &redacted_ranges,
10488 window,
10489 cx,
10490 );
10491
10492 let scrollbars_layout = self.layout_scrollbars(
10493 &snapshot,
10494 &scrollbar_layout_information,
10495 content_offset,
10496 scroll_position,
10497 non_visible_cursors,
10498 right_margin,
10499 editor_width,
10500 window,
10501 cx,
10502 );
10503
10504 let gutter_settings = EditorSettings::get_global(cx).gutter;
10505
10506 let context_menu_layout =
10507 if let Some(newest_selection_head) = newest_selection_head {
10508 let newest_selection_point =
10509 newest_selection_head.to_point(&snapshot.display_snapshot);
10510 if (start_row..end_row).contains(&newest_selection_head.row()) {
10511 self.layout_cursor_popovers(
10512 line_height,
10513 &text_hitbox,
10514 content_origin,
10515 right_margin,
10516 start_row,
10517 scroll_pixel_position,
10518 &line_layouts,
10519 newest_selection_head,
10520 newest_selection_point,
10521 style,
10522 window,
10523 cx,
10524 )
10525 } else {
10526 None
10527 }
10528 } else {
10529 None
10530 };
10531
10532 self.layout_gutter_menu(
10533 line_height,
10534 &text_hitbox,
10535 content_origin,
10536 right_margin,
10537 scroll_pixel_position,
10538 gutter_dimensions.width - gutter_dimensions.left_padding,
10539 window,
10540 cx,
10541 );
10542
10543 let test_indicators = if gutter_settings.runnables {
10544 self.layout_run_indicators(
10545 line_height,
10546 start_row..end_row,
10547 &row_infos,
10548 scroll_position,
10549 &gutter_dimensions,
10550 &gutter_hitbox,
10551 &snapshot,
10552 &mut breakpoint_rows,
10553 window,
10554 cx,
10555 )
10556 } else {
10557 Vec::new()
10558 };
10559
10560 let show_breakpoints = snapshot
10561 .show_breakpoints
10562 .unwrap_or(gutter_settings.breakpoints);
10563 let breakpoints = if show_breakpoints {
10564 self.layout_breakpoints(
10565 line_height,
10566 start_row..end_row,
10567 scroll_position,
10568 &gutter_dimensions,
10569 &gutter_hitbox,
10570 &snapshot,
10571 breakpoint_rows,
10572 &row_infos,
10573 window,
10574 cx,
10575 )
10576 } else {
10577 Vec::new()
10578 };
10579
10580 let git_gutter_width = Self::gutter_strip_width(line_height)
10581 + gutter_dimensions
10582 .git_blame_entries_width
10583 .unwrap_or_default();
10584 let available_width = gutter_dimensions.left_padding - git_gutter_width;
10585
10586 let max_line_number_length = self
10587 .editor
10588 .read(cx)
10589 .buffer()
10590 .read(cx)
10591 .snapshot(cx)
10592 .widest_line_number()
10593 .ilog10()
10594 + 1;
10595
10596 let diff_review_button = self
10597 .should_render_diff_review_button(
10598 start_row..end_row,
10599 &row_infos,
10600 &snapshot,
10601 cx,
10602 )
10603 .map(|(display_row, buffer_row)| {
10604 let is_wide = max_line_number_length
10605 >= EditorSettings::get_global(cx).gutter.min_line_number_digits
10606 as u32
10607 && buffer_row.is_some_and(|row| {
10608 (row + 1).ilog10() + 1 == max_line_number_length
10609 })
10610 || gutter_dimensions.right_padding == px(0.);
10611
10612 let button_width = if is_wide {
10613 available_width - px(6.)
10614 } else {
10615 available_width + em_width - px(6.)
10616 };
10617
10618 let button = self.editor.update(cx, |editor, cx| {
10619 editor
10620 .render_diff_review_button(display_row, button_width, cx)
10621 .into_any_element()
10622 });
10623 prepaint_gutter_button(
10624 button,
10625 display_row,
10626 line_height,
10627 &gutter_dimensions,
10628 scroll_position,
10629 &gutter_hitbox,
10630 window,
10631 cx,
10632 )
10633 });
10634
10635 self.layout_signature_help(
10636 &hitbox,
10637 content_origin,
10638 scroll_pixel_position,
10639 newest_selection_head,
10640 start_row,
10641 &line_layouts,
10642 line_height,
10643 em_width,
10644 context_menu_layout,
10645 window,
10646 cx,
10647 );
10648
10649 if !cx.has_active_drag() {
10650 self.layout_hover_popovers(
10651 &snapshot,
10652 &hitbox,
10653 start_row..end_row,
10654 content_origin,
10655 scroll_pixel_position,
10656 &line_layouts,
10657 line_height,
10658 em_width,
10659 context_menu_layout,
10660 window,
10661 cx,
10662 );
10663
10664 self.layout_blame_popover(&snapshot, &hitbox, line_height, window, cx);
10665 }
10666
10667 let mouse_context_menu = self.layout_mouse_context_menu(
10668 &snapshot,
10669 start_row..end_row,
10670 content_origin,
10671 window,
10672 cx,
10673 );
10674
10675 window.with_element_namespace("crease_toggles", |window| {
10676 self.prepaint_crease_toggles(
10677 &mut crease_toggles,
10678 line_height,
10679 &gutter_dimensions,
10680 gutter_settings,
10681 scroll_pixel_position,
10682 &gutter_hitbox,
10683 window,
10684 cx,
10685 )
10686 });
10687
10688 window.with_element_namespace("expand_toggles", |window| {
10689 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
10690 });
10691
10692 let wrap_guides = self.layout_wrap_guides(
10693 em_advance,
10694 scroll_position,
10695 content_origin,
10696 scrollbars_layout.as_ref(),
10697 vertical_scrollbar_width,
10698 &hitbox,
10699 window,
10700 cx,
10701 );
10702
10703 let minimap = window.with_element_namespace("minimap", |window| {
10704 self.layout_minimap(
10705 &snapshot,
10706 minimap_width,
10707 scroll_position,
10708 &scrollbar_layout_information,
10709 scrollbars_layout.as_ref(),
10710 window,
10711 cx,
10712 )
10713 });
10714
10715 let invisible_symbol_font_size = font_size / 2.;
10716 let whitespace_map = &self
10717 .editor
10718 .read(cx)
10719 .buffer
10720 .read(cx)
10721 .language_settings(cx)
10722 .whitespace_map;
10723
10724 let tab_char = whitespace_map.tab.clone();
10725 let tab_len = tab_char.len();
10726 let tab_invisible = window.text_system().shape_line(
10727 tab_char,
10728 invisible_symbol_font_size,
10729 &[TextRun {
10730 len: tab_len,
10731 font: self.style.text.font(),
10732 color: cx.theme().colors().editor_invisible,
10733 ..Default::default()
10734 }],
10735 None,
10736 );
10737
10738 let space_char = whitespace_map.space.clone();
10739 let space_len = space_char.len();
10740 let space_invisible = window.text_system().shape_line(
10741 space_char,
10742 invisible_symbol_font_size,
10743 &[TextRun {
10744 len: space_len,
10745 font: self.style.text.font(),
10746 color: cx.theme().colors().editor_invisible,
10747 ..Default::default()
10748 }],
10749 None,
10750 );
10751
10752 let mode = snapshot.mode.clone();
10753
10754 let (diff_hunk_controls, diff_hunk_control_bounds) =
10755 if is_read_only && !self.editor.read(cx).delegate_stage_and_restore {
10756 (vec![], vec![])
10757 } else {
10758 self.layout_diff_hunk_controls(
10759 start_row..end_row,
10760 &row_infos,
10761 &text_hitbox,
10762 newest_selection_head,
10763 line_height,
10764 right_margin,
10765 scroll_pixel_position,
10766 &display_hunks,
10767 &highlighted_rows,
10768 self.editor.clone(),
10769 window,
10770 cx,
10771 )
10772 };
10773
10774 let position_map = Rc::new(PositionMap {
10775 size: bounds.size,
10776 visible_row_range,
10777 scroll_position,
10778 scroll_pixel_position,
10779 scroll_max,
10780 line_layouts,
10781 line_height,
10782 em_width,
10783 em_advance,
10784 em_layout_width,
10785 snapshot,
10786 text_align: self.style.text.text_align,
10787 content_width: text_hitbox.size.width,
10788 gutter_hitbox: gutter_hitbox.clone(),
10789 text_hitbox: text_hitbox.clone(),
10790 inline_blame_bounds: inline_blame_layout
10791 .as_ref()
10792 .map(|layout| (layout.bounds, layout.buffer_id, layout.entry.clone())),
10793 display_hunks: display_hunks.clone(),
10794 diff_hunk_control_bounds,
10795 });
10796
10797 self.editor.update(cx, |editor, _| {
10798 editor.last_position_map = Some(position_map.clone())
10799 });
10800
10801 EditorLayout {
10802 mode,
10803 position_map,
10804 visible_display_row_range: start_row..end_row,
10805 wrap_guides,
10806 indent_guides,
10807 hitbox,
10808 gutter_hitbox,
10809 display_hunks,
10810 content_origin,
10811 scrollbars_layout,
10812 minimap,
10813 active_rows,
10814 highlighted_rows,
10815 highlighted_ranges,
10816 highlighted_gutter_ranges,
10817 redacted_ranges,
10818 document_colors,
10819 line_elements,
10820 line_numbers,
10821 blamed_display_rows,
10822 inline_diagnostics,
10823 inline_blame_layout,
10824 inline_code_actions,
10825 blocks,
10826 cursors,
10827 visible_cursors,
10828 selections,
10829 edit_prediction_popover,
10830 diff_hunk_controls,
10831 mouse_context_menu,
10832 test_indicators,
10833 breakpoints,
10834 diff_review_button,
10835 crease_toggles,
10836 crease_trailers,
10837 tab_invisible,
10838 space_invisible,
10839 sticky_buffer_header,
10840 sticky_headers,
10841 expand_toggles,
10842 text_align: self.style.text.text_align,
10843 content_width: text_hitbox.size.width,
10844 }
10845 })
10846 })
10847 })
10848 }
10849
10850 fn paint(
10851 &mut self,
10852 _: Option<&GlobalElementId>,
10853 _inspector_id: Option<&gpui::InspectorElementId>,
10854 bounds: Bounds<gpui::Pixels>,
10855 _: &mut Self::RequestLayoutState,
10856 layout: &mut Self::PrepaintState,
10857 window: &mut Window,
10858 cx: &mut App,
10859 ) {
10860 if !layout.mode.is_minimap() {
10861 let focus_handle = self.editor.focus_handle(cx);
10862 let key_context = self
10863 .editor
10864 .update(cx, |editor, cx| editor.key_context(window, cx));
10865
10866 window.set_key_context(key_context);
10867 window.handle_input(
10868 &focus_handle,
10869 ElementInputHandler::new(bounds, self.editor.clone()),
10870 cx,
10871 );
10872 self.register_actions(window, cx);
10873 self.register_key_listeners(window, cx, layout);
10874 }
10875
10876 let text_style = TextStyleRefinement {
10877 font_size: Some(self.style.text.font_size),
10878 line_height: Some(self.style.text.line_height),
10879 ..Default::default()
10880 };
10881 let rem_size = self.rem_size(cx);
10882 window.with_rem_size(rem_size, |window| {
10883 window.with_text_style(Some(text_style), |window| {
10884 window.with_content_mask(Some(ContentMask { bounds }), |window| {
10885 self.paint_mouse_listeners(layout, window, cx);
10886 self.paint_background(layout, window, cx);
10887 self.paint_indent_guides(layout, window, cx);
10888
10889 if layout.gutter_hitbox.size.width > Pixels::ZERO {
10890 self.paint_blamed_display_rows(layout, window, cx);
10891 self.paint_line_numbers(layout, window, cx);
10892 }
10893
10894 self.paint_text(layout, window, cx);
10895
10896 if layout.gutter_hitbox.size.width > Pixels::ZERO {
10897 self.paint_gutter_highlights(layout, window, cx);
10898 self.paint_gutter_indicators(layout, window, cx);
10899 }
10900
10901 if !layout.blocks.is_empty() {
10902 window.with_element_namespace("blocks", |window| {
10903 self.paint_blocks(layout, window, cx);
10904 });
10905 }
10906
10907 window.with_element_namespace("blocks", |window| {
10908 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
10909 sticky_header.paint(window, cx)
10910 }
10911 });
10912
10913 self.paint_sticky_headers(layout, window, cx);
10914 self.paint_minimap(layout, window, cx);
10915 self.paint_scrollbars(layout, window, cx);
10916 self.paint_edit_prediction_popover(layout, window, cx);
10917 self.paint_mouse_context_menu(layout, window, cx);
10918 });
10919 })
10920 })
10921 }
10922}
10923
10924pub(super) fn gutter_bounds(
10925 editor_bounds: Bounds<Pixels>,
10926 gutter_dimensions: GutterDimensions,
10927) -> Bounds<Pixels> {
10928 Bounds {
10929 origin: editor_bounds.origin,
10930 size: size(gutter_dimensions.width, editor_bounds.size.height),
10931 }
10932}
10933
10934#[derive(Clone, Copy)]
10935struct ContextMenuLayout {
10936 y_flipped: bool,
10937 bounds: Bounds<Pixels>,
10938}
10939
10940/// Holds information required for layouting the editor scrollbars.
10941struct ScrollbarLayoutInformation {
10942 /// The bounds of the editor area (excluding the content offset).
10943 editor_bounds: Bounds<Pixels>,
10944 /// The available range to scroll within the document.
10945 scroll_range: Size<Pixels>,
10946 /// The space available for one glyph in the editor.
10947 glyph_grid_cell: Size<Pixels>,
10948}
10949
10950impl ScrollbarLayoutInformation {
10951 pub fn new(
10952 editor_bounds: Bounds<Pixels>,
10953 glyph_grid_cell: Size<Pixels>,
10954 document_size: Size<Pixels>,
10955 longest_line_blame_width: Pixels,
10956 settings: &EditorSettings,
10957 ) -> Self {
10958 let vertical_overscroll = match settings.scroll_beyond_last_line {
10959 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
10960 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
10961 ScrollBeyondLastLine::VerticalScrollMargin => {
10962 (1.0 + settings.vertical_scroll_margin) as f32 * glyph_grid_cell.height
10963 }
10964 };
10965
10966 let overscroll = size(longest_line_blame_width, vertical_overscroll);
10967
10968 ScrollbarLayoutInformation {
10969 editor_bounds,
10970 scroll_range: document_size + overscroll,
10971 glyph_grid_cell,
10972 }
10973 }
10974}
10975
10976impl IntoElement for EditorElement {
10977 type Element = Self;
10978
10979 fn into_element(self) -> Self::Element {
10980 self
10981 }
10982}
10983
10984pub struct EditorLayout {
10985 position_map: Rc<PositionMap>,
10986 hitbox: Hitbox,
10987 gutter_hitbox: Hitbox,
10988 content_origin: gpui::Point<Pixels>,
10989 scrollbars_layout: Option<EditorScrollbars>,
10990 minimap: Option<MinimapLayout>,
10991 mode: EditorMode,
10992 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
10993 indent_guides: Option<Vec<IndentGuideLayout>>,
10994 visible_display_row_range: Range<DisplayRow>,
10995 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
10996 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
10997 line_elements: SmallVec<[AnyElement; 1]>,
10998 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
10999 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
11000 blamed_display_rows: Option<Vec<AnyElement>>,
11001 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
11002 inline_blame_layout: Option<InlineBlameLayout>,
11003 inline_code_actions: Option<AnyElement>,
11004 blocks: Vec<BlockLayout>,
11005 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
11006 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
11007 redacted_ranges: Vec<Range<DisplayPoint>>,
11008 cursors: Vec<(DisplayPoint, Hsla)>,
11009 visible_cursors: Vec<CursorLayout>,
11010 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
11011 test_indicators: Vec<AnyElement>,
11012 breakpoints: Vec<AnyElement>,
11013 diff_review_button: Option<AnyElement>,
11014 crease_toggles: Vec<Option<AnyElement>>,
11015 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
11016 diff_hunk_controls: Vec<AnyElement>,
11017 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
11018 edit_prediction_popover: Option<AnyElement>,
11019 mouse_context_menu: Option<AnyElement>,
11020 tab_invisible: ShapedLine,
11021 space_invisible: ShapedLine,
11022 sticky_buffer_header: Option<AnyElement>,
11023 sticky_headers: Option<StickyHeaders>,
11024 document_colors: Option<(DocumentColorsRenderMode, Vec<(Range<DisplayPoint>, Hsla)>)>,
11025 text_align: TextAlign,
11026 content_width: Pixels,
11027}
11028
11029struct StickyHeaders {
11030 lines: Vec<StickyHeaderLine>,
11031 gutter_background: Hsla,
11032 content_background: Hsla,
11033 gutter_right_padding: Pixels,
11034}
11035
11036struct StickyHeaderLine {
11037 row: DisplayRow,
11038 offset: Pixels,
11039 line: LineWithInvisibles,
11040 line_number: Option<ShapedLine>,
11041 elements: SmallVec<[AnyElement; 1]>,
11042 available_text_width: Pixels,
11043 target_anchor: Anchor,
11044 hitbox: Hitbox,
11045}
11046
11047impl EditorLayout {
11048 fn line_end_overshoot(&self) -> Pixels {
11049 0.15 * self.position_map.line_height
11050 }
11051}
11052
11053impl StickyHeaders {
11054 fn paint(
11055 &mut self,
11056 layout: &mut EditorLayout,
11057 whitespace_setting: ShowWhitespaceSetting,
11058 window: &mut Window,
11059 cx: &mut App,
11060 ) {
11061 let line_height = layout.position_map.line_height;
11062
11063 for line in self.lines.iter_mut().rev() {
11064 window.paint_layer(
11065 Bounds::new(
11066 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
11067 size(line.hitbox.size.width, line_height),
11068 ),
11069 |window| {
11070 let gutter_bounds = Bounds::new(
11071 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
11072 size(layout.gutter_hitbox.size.width, line_height),
11073 );
11074 window.paint_quad(fill(gutter_bounds, self.gutter_background));
11075
11076 let text_bounds = Bounds::new(
11077 layout.position_map.text_hitbox.origin + point(Pixels::ZERO, line.offset),
11078 size(line.available_text_width, line_height),
11079 );
11080 window.paint_quad(fill(text_bounds, self.content_background));
11081
11082 if line.hitbox.is_hovered(window) {
11083 let hover_overlay = cx.theme().colors().panel_overlay_hover;
11084 window.paint_quad(fill(gutter_bounds, hover_overlay));
11085 window.paint_quad(fill(text_bounds, hover_overlay));
11086 }
11087
11088 line.paint(
11089 layout,
11090 self.gutter_right_padding,
11091 line.available_text_width,
11092 layout.content_origin,
11093 line_height,
11094 whitespace_setting,
11095 window,
11096 cx,
11097 );
11098 },
11099 );
11100
11101 window.set_cursor_style(CursorStyle::PointingHand, &line.hitbox);
11102 }
11103 }
11104}
11105
11106impl StickyHeaderLine {
11107 fn new(
11108 row: DisplayRow,
11109 offset: Pixels,
11110 mut line: LineWithInvisibles,
11111 line_number: Option<ShapedLine>,
11112 target_anchor: Anchor,
11113 line_height: Pixels,
11114 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
11115 content_origin: gpui::Point<Pixels>,
11116 gutter_hitbox: &Hitbox,
11117 text_hitbox: &Hitbox,
11118 window: &mut Window,
11119 cx: &mut App,
11120 ) -> Self {
11121 let mut elements = SmallVec::<[AnyElement; 1]>::new();
11122 line.prepaint_with_custom_offset(
11123 line_height,
11124 scroll_pixel_position,
11125 content_origin,
11126 offset,
11127 &mut elements,
11128 window,
11129 cx,
11130 );
11131
11132 let hitbox_bounds = Bounds::new(
11133 gutter_hitbox.origin + point(Pixels::ZERO, offset),
11134 size(text_hitbox.right() - gutter_hitbox.left(), line_height),
11135 );
11136 let available_text_width =
11137 (hitbox_bounds.size.width - gutter_hitbox.size.width).max(Pixels::ZERO);
11138
11139 Self {
11140 row,
11141 offset,
11142 line,
11143 line_number,
11144 elements,
11145 available_text_width,
11146 target_anchor,
11147 hitbox: window.insert_hitbox(hitbox_bounds, HitboxBehavior::BlockMouseExceptScroll),
11148 }
11149 }
11150
11151 fn paint(
11152 &mut self,
11153 layout: &EditorLayout,
11154 gutter_right_padding: Pixels,
11155 available_text_width: Pixels,
11156 content_origin: gpui::Point<Pixels>,
11157 line_height: Pixels,
11158 whitespace_setting: ShowWhitespaceSetting,
11159 window: &mut Window,
11160 cx: &mut App,
11161 ) {
11162 window.with_content_mask(
11163 Some(ContentMask {
11164 bounds: Bounds::new(
11165 layout.position_map.text_hitbox.bounds.origin
11166 + point(Pixels::ZERO, self.offset),
11167 size(available_text_width, line_height),
11168 ),
11169 }),
11170 |window| {
11171 self.line.draw_with_custom_offset(
11172 layout,
11173 self.row,
11174 content_origin,
11175 self.offset,
11176 whitespace_setting,
11177 &[],
11178 window,
11179 cx,
11180 );
11181 for element in &mut self.elements {
11182 element.paint(window, cx);
11183 }
11184 },
11185 );
11186
11187 if let Some(line_number) = &self.line_number {
11188 let gutter_origin = layout.gutter_hitbox.origin + point(Pixels::ZERO, self.offset);
11189 let gutter_width = layout.gutter_hitbox.size.width;
11190 let origin = point(
11191 gutter_origin.x + gutter_width - gutter_right_padding - line_number.width,
11192 gutter_origin.y,
11193 );
11194 line_number
11195 .paint(origin, line_height, TextAlign::Left, None, window, cx)
11196 .log_err();
11197 }
11198 }
11199}
11200
11201#[derive(Debug)]
11202struct LineNumberSegment {
11203 shaped_line: ShapedLine,
11204 hitbox: Option<Hitbox>,
11205}
11206
11207#[derive(Debug)]
11208struct LineNumberLayout {
11209 segments: SmallVec<[LineNumberSegment; 1]>,
11210}
11211
11212struct ColoredRange<T> {
11213 start: T,
11214 end: T,
11215 color: Hsla,
11216}
11217
11218impl Along for ScrollbarAxes {
11219 type Unit = bool;
11220
11221 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
11222 match axis {
11223 ScrollbarAxis::Horizontal => self.horizontal,
11224 ScrollbarAxis::Vertical => self.vertical,
11225 }
11226 }
11227
11228 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
11229 match axis {
11230 ScrollbarAxis::Horizontal => ScrollbarAxes {
11231 horizontal: f(self.horizontal),
11232 vertical: self.vertical,
11233 },
11234 ScrollbarAxis::Vertical => ScrollbarAxes {
11235 horizontal: self.horizontal,
11236 vertical: f(self.vertical),
11237 },
11238 }
11239 }
11240}
11241
11242#[derive(Clone)]
11243struct EditorScrollbars {
11244 pub vertical: Option<ScrollbarLayout>,
11245 pub horizontal: Option<ScrollbarLayout>,
11246 pub visible: bool,
11247}
11248
11249impl EditorScrollbars {
11250 pub fn from_scrollbar_axes(
11251 show_scrollbar: ScrollbarAxes,
11252 layout_information: &ScrollbarLayoutInformation,
11253 content_offset: gpui::Point<Pixels>,
11254 scroll_position: gpui::Point<f64>,
11255 scrollbar_width: Pixels,
11256 right_margin: Pixels,
11257 editor_width: Pixels,
11258 show_scrollbars: bool,
11259 scrollbar_state: Option<&ActiveScrollbarState>,
11260 window: &mut Window,
11261 ) -> Self {
11262 let ScrollbarLayoutInformation {
11263 editor_bounds,
11264 scroll_range,
11265 glyph_grid_cell,
11266 } = layout_information;
11267
11268 let viewport_size = size(editor_width, editor_bounds.size.height);
11269
11270 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
11271 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
11272 Corner::BottomLeft,
11273 editor_bounds.bottom_left(),
11274 size(
11275 // The horizontal viewport size differs from the space available for the
11276 // horizontal scrollbar, so we have to manually stitch it together here.
11277 editor_bounds.size.width - right_margin,
11278 scrollbar_width,
11279 ),
11280 ),
11281 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
11282 Corner::TopRight,
11283 editor_bounds.top_right(),
11284 size(scrollbar_width, viewport_size.height),
11285 ),
11286 };
11287
11288 let mut create_scrollbar_layout = |axis| {
11289 let viewport_size = viewport_size.along(axis);
11290 let scroll_range = scroll_range.along(axis);
11291
11292 // We always want a vertical scrollbar track for scrollbar diagnostic visibility.
11293 (show_scrollbar.along(axis)
11294 && (axis == ScrollbarAxis::Vertical || scroll_range > viewport_size))
11295 .then(|| {
11296 ScrollbarLayout::new(
11297 window.insert_hitbox(scrollbar_bounds_for(axis), HitboxBehavior::Normal),
11298 viewport_size,
11299 scroll_range,
11300 glyph_grid_cell.along(axis),
11301 content_offset.along(axis),
11302 scroll_position.along(axis),
11303 show_scrollbars,
11304 axis,
11305 )
11306 .with_thumb_state(
11307 scrollbar_state.and_then(|state| state.thumb_state_for_axis(axis)),
11308 )
11309 })
11310 };
11311
11312 Self {
11313 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
11314 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
11315 visible: show_scrollbars,
11316 }
11317 }
11318
11319 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
11320 [
11321 (&self.vertical, ScrollbarAxis::Vertical),
11322 (&self.horizontal, ScrollbarAxis::Horizontal),
11323 ]
11324 .into_iter()
11325 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
11326 }
11327
11328 /// Returns the currently hovered scrollbar axis, if any.
11329 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
11330 self.iter_scrollbars()
11331 .find(|s| s.0.hitbox.is_hovered(window))
11332 }
11333}
11334
11335#[derive(Clone)]
11336struct ScrollbarLayout {
11337 hitbox: Hitbox,
11338 visible_range: Range<ScrollOffset>,
11339 text_unit_size: Pixels,
11340 thumb_bounds: Option<Bounds<Pixels>>,
11341 thumb_state: ScrollbarThumbState,
11342}
11343
11344impl ScrollbarLayout {
11345 const BORDER_WIDTH: Pixels = px(1.0);
11346 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
11347 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
11348 const MIN_THUMB_SIZE: Pixels = px(25.0);
11349
11350 fn new(
11351 scrollbar_track_hitbox: Hitbox,
11352 viewport_size: Pixels,
11353 scroll_range: Pixels,
11354 glyph_space: Pixels,
11355 content_offset: Pixels,
11356 scroll_position: ScrollOffset,
11357 show_thumb: bool,
11358 axis: ScrollbarAxis,
11359 ) -> Self {
11360 let track_bounds = scrollbar_track_hitbox.bounds;
11361 // The length of the track available to the scrollbar thumb. We deliberately
11362 // exclude the content size here so that the thumb aligns with the content.
11363 let track_length = track_bounds.size.along(axis) - content_offset;
11364
11365 Self::new_with_hitbox_and_track_length(
11366 scrollbar_track_hitbox,
11367 track_length,
11368 viewport_size,
11369 scroll_range.into(),
11370 glyph_space,
11371 content_offset.into(),
11372 scroll_position,
11373 show_thumb,
11374 axis,
11375 )
11376 }
11377
11378 fn for_minimap(
11379 minimap_track_hitbox: Hitbox,
11380 visible_lines: f64,
11381 total_editor_lines: f64,
11382 minimap_line_height: Pixels,
11383 scroll_position: ScrollOffset,
11384 minimap_scroll_top: ScrollOffset,
11385 show_thumb: bool,
11386 ) -> Self {
11387 // The scrollbar thumb size is calculated as
11388 // (visible_content/total_content) Γ scrollbar_track_length.
11389 //
11390 // For the minimap's thumb layout, we leverage this by setting the
11391 // scrollbar track length to the entire document size (using minimap line
11392 // height). This creates a thumb that exactly represents the editor
11393 // viewport scaled to minimap proportions.
11394 //
11395 // We adjust the thumb position relative to `minimap_scroll_top` to
11396 // accommodate for the deliberately oversized track.
11397 //
11398 // This approach ensures that the minimap thumb accurately reflects the
11399 // editor's current scroll position whilst nicely synchronizing the minimap
11400 // thumb and scrollbar thumb.
11401 let scroll_range = total_editor_lines * f64::from(minimap_line_height);
11402 let viewport_size = visible_lines * f64::from(minimap_line_height);
11403
11404 let track_top_offset = -minimap_scroll_top * f64::from(minimap_line_height);
11405
11406 Self::new_with_hitbox_and_track_length(
11407 minimap_track_hitbox,
11408 Pixels::from(scroll_range),
11409 Pixels::from(viewport_size),
11410 scroll_range,
11411 minimap_line_height,
11412 track_top_offset,
11413 scroll_position,
11414 show_thumb,
11415 ScrollbarAxis::Vertical,
11416 )
11417 }
11418
11419 fn new_with_hitbox_and_track_length(
11420 scrollbar_track_hitbox: Hitbox,
11421 track_length: Pixels,
11422 viewport_size: Pixels,
11423 scroll_range: f64,
11424 glyph_space: Pixels,
11425 content_offset: ScrollOffset,
11426 scroll_position: ScrollOffset,
11427 show_thumb: bool,
11428 axis: ScrollbarAxis,
11429 ) -> Self {
11430 let text_units_per_page = viewport_size.to_f64() / glyph_space.to_f64();
11431 let visible_range = scroll_position..scroll_position + text_units_per_page;
11432 let total_text_units = scroll_range / glyph_space.to_f64();
11433
11434 let thumb_percentage = text_units_per_page / total_text_units;
11435 let thumb_size = Pixels::from(ScrollOffset::from(track_length) * thumb_percentage)
11436 .max(ScrollbarLayout::MIN_THUMB_SIZE)
11437 .min(track_length);
11438
11439 let text_unit_divisor = (total_text_units - text_units_per_page).max(0.);
11440
11441 let content_larger_than_viewport = text_unit_divisor > 0.;
11442
11443 let text_unit_size = if content_larger_than_viewport {
11444 Pixels::from(ScrollOffset::from(track_length - thumb_size) / text_unit_divisor)
11445 } else {
11446 glyph_space
11447 };
11448
11449 let thumb_bounds = (show_thumb && content_larger_than_viewport).then(|| {
11450 Self::thumb_bounds(
11451 &scrollbar_track_hitbox,
11452 content_offset,
11453 visible_range.start,
11454 text_unit_size,
11455 thumb_size,
11456 axis,
11457 )
11458 });
11459
11460 ScrollbarLayout {
11461 hitbox: scrollbar_track_hitbox,
11462 visible_range,
11463 text_unit_size,
11464 thumb_bounds,
11465 thumb_state: Default::default(),
11466 }
11467 }
11468
11469 fn with_thumb_state(self, thumb_state: Option<ScrollbarThumbState>) -> Self {
11470 if let Some(thumb_state) = thumb_state {
11471 Self {
11472 thumb_state,
11473 ..self
11474 }
11475 } else {
11476 self
11477 }
11478 }
11479
11480 fn thumb_bounds(
11481 scrollbar_track: &Hitbox,
11482 content_offset: f64,
11483 visible_range_start: f64,
11484 text_unit_size: Pixels,
11485 thumb_size: Pixels,
11486 axis: ScrollbarAxis,
11487 ) -> Bounds<Pixels> {
11488 let thumb_origin = scrollbar_track.origin.apply_along(axis, |origin| {
11489 origin
11490 + Pixels::from(
11491 content_offset + visible_range_start * ScrollOffset::from(text_unit_size),
11492 )
11493 });
11494 Bounds::new(
11495 thumb_origin,
11496 scrollbar_track.size.apply_along(axis, |_| thumb_size),
11497 )
11498 }
11499
11500 fn thumb_hovered(&self, position: &gpui::Point<Pixels>) -> bool {
11501 self.thumb_bounds
11502 .is_some_and(|bounds| bounds.contains(position))
11503 }
11504
11505 fn marker_quads_for_ranges(
11506 &self,
11507 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
11508 column: Option<usize>,
11509 ) -> Vec<PaintQuad> {
11510 struct MinMax {
11511 min: Pixels,
11512 max: Pixels,
11513 }
11514 let (x_range, height_limit) = if let Some(column) = column {
11515 let column_width = ((self.hitbox.size.width - Self::BORDER_WIDTH) / 3.0).floor();
11516 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
11517 let end = start + column_width;
11518 (
11519 Range { start, end },
11520 MinMax {
11521 min: Self::MIN_MARKER_HEIGHT,
11522 max: px(f32::MAX),
11523 },
11524 )
11525 } else {
11526 (
11527 Range {
11528 start: Self::BORDER_WIDTH,
11529 end: self.hitbox.size.width,
11530 },
11531 MinMax {
11532 min: Self::LINE_MARKER_HEIGHT,
11533 max: Self::LINE_MARKER_HEIGHT,
11534 },
11535 )
11536 };
11537
11538 let row_to_y = |row: DisplayRow| row.as_f64() as f32 * self.text_unit_size;
11539 let mut pixel_ranges = row_ranges
11540 .into_iter()
11541 .map(|range| {
11542 let start_y = row_to_y(range.start);
11543 let end_y = row_to_y(range.end)
11544 + self
11545 .text_unit_size
11546 .max(height_limit.min)
11547 .min(height_limit.max);
11548 ColoredRange {
11549 start: start_y,
11550 end: end_y,
11551 color: range.color,
11552 }
11553 })
11554 .peekable();
11555
11556 let mut quads = Vec::new();
11557 while let Some(mut pixel_range) = pixel_ranges.next() {
11558 while let Some(next_pixel_range) = pixel_ranges.peek() {
11559 if pixel_range.end >= next_pixel_range.start - px(1.0)
11560 && pixel_range.color == next_pixel_range.color
11561 {
11562 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
11563 pixel_ranges.next();
11564 } else {
11565 break;
11566 }
11567 }
11568
11569 let bounds = Bounds::from_corners(
11570 point(x_range.start, pixel_range.start),
11571 point(x_range.end, pixel_range.end),
11572 );
11573 quads.push(quad(
11574 bounds,
11575 Corners::default(),
11576 pixel_range.color,
11577 Edges::default(),
11578 Hsla::transparent_black(),
11579 BorderStyle::default(),
11580 ));
11581 }
11582
11583 quads
11584 }
11585}
11586
11587struct MinimapLayout {
11588 pub minimap: AnyElement,
11589 pub thumb_layout: ScrollbarLayout,
11590 pub minimap_scroll_top: ScrollOffset,
11591 pub minimap_line_height: Pixels,
11592 pub thumb_border_style: MinimapThumbBorder,
11593 pub max_scroll_top: ScrollOffset,
11594}
11595
11596impl MinimapLayout {
11597 /// The minimum width of the minimap in columns. If the minimap is smaller than this, it will be hidden.
11598 const MINIMAP_MIN_WIDTH_COLUMNS: f32 = 20.;
11599 /// The minimap width as a percentage of the editor width.
11600 const MINIMAP_WIDTH_PCT: f32 = 0.15;
11601 /// Calculates the scroll top offset the minimap editor has to have based on the
11602 /// current scroll progress.
11603 fn calculate_minimap_top_offset(
11604 document_lines: f64,
11605 visible_editor_lines: f64,
11606 visible_minimap_lines: f64,
11607 scroll_position: f64,
11608 ) -> ScrollOffset {
11609 let non_visible_document_lines = (document_lines - visible_editor_lines).max(0.);
11610 if non_visible_document_lines == 0. {
11611 0.
11612 } else {
11613 let scroll_percentage = (scroll_position / non_visible_document_lines).clamp(0., 1.);
11614 scroll_percentage * (document_lines - visible_minimap_lines).max(0.)
11615 }
11616 }
11617}
11618
11619struct CreaseTrailerLayout {
11620 element: AnyElement,
11621 bounds: Bounds<Pixels>,
11622}
11623
11624pub(crate) struct PositionMap {
11625 pub size: Size<Pixels>,
11626 pub line_height: Pixels,
11627 pub scroll_position: gpui::Point<ScrollOffset>,
11628 pub scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
11629 pub scroll_max: gpui::Point<ScrollOffset>,
11630 pub em_width: Pixels,
11631 pub em_advance: Pixels,
11632 pub em_layout_width: Pixels,
11633 pub visible_row_range: Range<DisplayRow>,
11634 pub line_layouts: Vec<LineWithInvisibles>,
11635 pub snapshot: EditorSnapshot,
11636 pub text_align: TextAlign,
11637 pub content_width: Pixels,
11638 pub text_hitbox: Hitbox,
11639 pub gutter_hitbox: Hitbox,
11640 pub inline_blame_bounds: Option<(Bounds<Pixels>, BufferId, BlameEntry)>,
11641 pub display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
11642 pub diff_hunk_control_bounds: Vec<(DisplayRow, Bounds<Pixels>)>,
11643}
11644
11645#[derive(Debug, Copy, Clone)]
11646pub struct PointForPosition {
11647 pub previous_valid: DisplayPoint,
11648 pub next_valid: DisplayPoint,
11649 pub exact_unclipped: DisplayPoint,
11650 pub column_overshoot_after_line_end: u32,
11651}
11652
11653impl PointForPosition {
11654 pub fn as_valid(&self) -> Option<DisplayPoint> {
11655 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
11656 Some(self.previous_valid)
11657 } else {
11658 None
11659 }
11660 }
11661
11662 pub fn intersects_selection(&self, selection: &Selection<DisplayPoint>) -> bool {
11663 let Some(valid_point) = self.as_valid() else {
11664 return false;
11665 };
11666 let range = selection.range();
11667
11668 let candidate_row = valid_point.row();
11669 let candidate_col = valid_point.column();
11670
11671 let start_row = range.start.row();
11672 let start_col = range.start.column();
11673 let end_row = range.end.row();
11674 let end_col = range.end.column();
11675
11676 if candidate_row < start_row || candidate_row > end_row {
11677 false
11678 } else if start_row == end_row {
11679 candidate_col >= start_col && candidate_col < end_col
11680 } else if candidate_row == start_row {
11681 candidate_col >= start_col
11682 } else if candidate_row == end_row {
11683 candidate_col < end_col
11684 } else {
11685 true
11686 }
11687 }
11688}
11689
11690impl PositionMap {
11691 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
11692 let text_bounds = self.text_hitbox.bounds;
11693 let scroll_position = self.snapshot.scroll_position();
11694 let position = position - text_bounds.origin;
11695 let y = position.y.max(px(0.)).min(self.size.height);
11696 let x = position.x + (scroll_position.x as f32 * self.em_layout_width);
11697 let row = ((y / self.line_height) as f64 + scroll_position.y) as u32;
11698
11699 let (column, x_overshoot_after_line_end) = if let Some(line) = self
11700 .line_layouts
11701 .get(row as usize - scroll_position.y as usize)
11702 {
11703 let alignment_offset = line.alignment_offset(self.text_align, self.content_width);
11704 let x_relative_to_text = x - alignment_offset;
11705 if let Some(ix) = line.index_for_x(x_relative_to_text) {
11706 (ix as u32, px(0.))
11707 } else {
11708 (line.len as u32, px(0.).max(x_relative_to_text - line.width))
11709 }
11710 } else {
11711 (0, x)
11712 };
11713
11714 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
11715 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
11716 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
11717
11718 let column_overshoot_after_line_end =
11719 (x_overshoot_after_line_end / self.em_layout_width) as u32;
11720 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
11721 PointForPosition {
11722 previous_valid,
11723 next_valid,
11724 exact_unclipped,
11725 column_overshoot_after_line_end,
11726 }
11727 }
11728}
11729
11730pub(crate) struct BlockLayout {
11731 pub(crate) id: BlockId,
11732 pub(crate) x_offset: Pixels,
11733 pub(crate) row: Option<DisplayRow>,
11734 pub(crate) element: AnyElement,
11735 pub(crate) available_space: Size<AvailableSpace>,
11736 pub(crate) style: BlockStyle,
11737 pub(crate) overlaps_gutter: bool,
11738 pub(crate) is_buffer_header: bool,
11739}
11740
11741pub fn layout_line(
11742 row: DisplayRow,
11743 snapshot: &EditorSnapshot,
11744 style: &EditorStyle,
11745 text_width: Pixels,
11746 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
11747 window: &mut Window,
11748 cx: &mut App,
11749) -> LineWithInvisibles {
11750 let use_tree_sitter =
11751 !snapshot.semantic_tokens_enabled || snapshot.use_tree_sitter_for_syntax(row, cx);
11752 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), use_tree_sitter, style);
11753 LineWithInvisibles::from_chunks(
11754 chunks,
11755 style,
11756 MAX_LINE_LEN,
11757 1,
11758 &snapshot.mode,
11759 text_width,
11760 is_row_soft_wrapped,
11761 &[],
11762 window,
11763 cx,
11764 )
11765 .pop()
11766 .unwrap()
11767}
11768
11769#[derive(Debug)]
11770pub struct IndentGuideLayout {
11771 origin: gpui::Point<Pixels>,
11772 length: Pixels,
11773 single_indent_width: Pixels,
11774 depth: u32,
11775 active: bool,
11776 settings: IndentGuideSettings,
11777}
11778
11779pub struct CursorLayout {
11780 origin: gpui::Point<Pixels>,
11781 block_width: Pixels,
11782 line_height: Pixels,
11783 color: Hsla,
11784 shape: CursorShape,
11785 block_text: Option<ShapedLine>,
11786 cursor_name: Option<AnyElement>,
11787}
11788
11789#[derive(Debug)]
11790pub struct CursorName {
11791 string: SharedString,
11792 color: Hsla,
11793 is_top_row: bool,
11794}
11795
11796impl CursorLayout {
11797 pub fn new(
11798 origin: gpui::Point<Pixels>,
11799 block_width: Pixels,
11800 line_height: Pixels,
11801 color: Hsla,
11802 shape: CursorShape,
11803 block_text: Option<ShapedLine>,
11804 ) -> CursorLayout {
11805 CursorLayout {
11806 origin,
11807 block_width,
11808 line_height,
11809 color,
11810 shape,
11811 block_text,
11812 cursor_name: None,
11813 }
11814 }
11815
11816 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
11817 Bounds {
11818 origin: self.origin + origin,
11819 size: size(self.block_width, self.line_height),
11820 }
11821 }
11822
11823 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
11824 match self.shape {
11825 CursorShape::Bar => Bounds {
11826 origin: self.origin + origin,
11827 size: size(px(2.0), self.line_height),
11828 },
11829 CursorShape::Block | CursorShape::Hollow => Bounds {
11830 origin: self.origin + origin,
11831 size: size(self.block_width, self.line_height),
11832 },
11833 CursorShape::Underline => Bounds {
11834 origin: self.origin
11835 + origin
11836 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
11837 size: size(self.block_width, px(2.0)),
11838 },
11839 }
11840 }
11841
11842 pub fn layout(
11843 &mut self,
11844 origin: gpui::Point<Pixels>,
11845 cursor_name: Option<CursorName>,
11846 window: &mut Window,
11847 cx: &mut App,
11848 ) {
11849 if let Some(cursor_name) = cursor_name {
11850 let bounds = self.bounds(origin);
11851 let text_size = self.line_height / 1.5;
11852
11853 let name_origin = if cursor_name.is_top_row {
11854 point(bounds.right() - px(1.), bounds.top())
11855 } else {
11856 match self.shape {
11857 CursorShape::Bar => point(
11858 bounds.right() - px(2.),
11859 bounds.top() - text_size / 2. - px(1.),
11860 ),
11861 _ => point(
11862 bounds.right() - px(1.),
11863 bounds.top() - text_size / 2. - px(1.),
11864 ),
11865 }
11866 };
11867 let mut name_element = div()
11868 .bg(self.color)
11869 .text_size(text_size)
11870 .px_0p5()
11871 .line_height(text_size + px(2.))
11872 .text_color(cursor_name.color)
11873 .child(cursor_name.string)
11874 .into_any_element();
11875
11876 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
11877
11878 self.cursor_name = Some(name_element);
11879 }
11880 }
11881
11882 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
11883 let bounds = self.bounds(origin);
11884
11885 //Draw background or border quad
11886 let cursor = if matches!(self.shape, CursorShape::Hollow) {
11887 outline(bounds, self.color, BorderStyle::Solid)
11888 } else {
11889 fill(bounds, self.color)
11890 };
11891
11892 if let Some(name) = &mut self.cursor_name {
11893 name.paint(window, cx);
11894 }
11895
11896 window.paint_quad(cursor);
11897
11898 if let Some(block_text) = &self.block_text {
11899 block_text
11900 .paint(
11901 self.origin + origin,
11902 self.line_height,
11903 TextAlign::Left,
11904 None,
11905 window,
11906 cx,
11907 )
11908 .log_err();
11909 }
11910 }
11911
11912 pub fn shape(&self) -> CursorShape {
11913 self.shape
11914 }
11915}
11916
11917#[derive(Debug)]
11918pub struct HighlightedRange {
11919 pub start_y: Pixels,
11920 pub line_height: Pixels,
11921 pub lines: Vec<HighlightedRangeLine>,
11922 pub color: Hsla,
11923 pub corner_radius: Pixels,
11924}
11925
11926#[derive(Debug)]
11927pub struct HighlightedRangeLine {
11928 pub start_x: Pixels,
11929 pub end_x: Pixels,
11930}
11931
11932impl HighlightedRange {
11933 pub fn paint(&self, fill: bool, bounds: Bounds<Pixels>, window: &mut Window) {
11934 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
11935 self.paint_lines(self.start_y, &self.lines[0..1], fill, bounds, window);
11936 self.paint_lines(
11937 self.start_y + self.line_height,
11938 &self.lines[1..],
11939 fill,
11940 bounds,
11941 window,
11942 );
11943 } else {
11944 self.paint_lines(self.start_y, &self.lines, fill, bounds, window);
11945 }
11946 }
11947
11948 fn paint_lines(
11949 &self,
11950 start_y: Pixels,
11951 lines: &[HighlightedRangeLine],
11952 fill: bool,
11953 _bounds: Bounds<Pixels>,
11954 window: &mut Window,
11955 ) {
11956 if lines.is_empty() {
11957 return;
11958 }
11959
11960 let first_line = lines.first().unwrap();
11961 let last_line = lines.last().unwrap();
11962
11963 let first_top_left = point(first_line.start_x, start_y);
11964 let first_top_right = point(first_line.end_x, start_y);
11965
11966 let curve_height = point(Pixels::ZERO, self.corner_radius);
11967 let curve_width = |start_x: Pixels, end_x: Pixels| {
11968 let max = (end_x - start_x) / 2.;
11969 let width = if max < self.corner_radius {
11970 max
11971 } else {
11972 self.corner_radius
11973 };
11974
11975 point(width, Pixels::ZERO)
11976 };
11977
11978 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
11979 let mut builder = if fill {
11980 gpui::PathBuilder::fill()
11981 } else {
11982 gpui::PathBuilder::stroke(px(1.))
11983 };
11984 builder.move_to(first_top_right - top_curve_width);
11985 builder.curve_to(first_top_right + curve_height, first_top_right);
11986
11987 let mut iter = lines.iter().enumerate().peekable();
11988 while let Some((ix, line)) = iter.next() {
11989 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
11990
11991 if let Some((_, next_line)) = iter.peek() {
11992 let next_top_right = point(next_line.end_x, bottom_right.y);
11993
11994 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
11995 Ordering::Equal => {
11996 builder.line_to(bottom_right);
11997 }
11998 Ordering::Less => {
11999 let curve_width = curve_width(next_top_right.x, bottom_right.x);
12000 builder.line_to(bottom_right - curve_height);
12001 if self.corner_radius > Pixels::ZERO {
12002 builder.curve_to(bottom_right - curve_width, bottom_right);
12003 }
12004 builder.line_to(next_top_right + curve_width);
12005 if self.corner_radius > Pixels::ZERO {
12006 builder.curve_to(next_top_right + curve_height, next_top_right);
12007 }
12008 }
12009 Ordering::Greater => {
12010 let curve_width = curve_width(bottom_right.x, next_top_right.x);
12011 builder.line_to(bottom_right - curve_height);
12012 if self.corner_radius > Pixels::ZERO {
12013 builder.curve_to(bottom_right + curve_width, bottom_right);
12014 }
12015 builder.line_to(next_top_right - curve_width);
12016 if self.corner_radius > Pixels::ZERO {
12017 builder.curve_to(next_top_right + curve_height, next_top_right);
12018 }
12019 }
12020 }
12021 } else {
12022 let curve_width = curve_width(line.start_x, line.end_x);
12023 builder.line_to(bottom_right - curve_height);
12024 if self.corner_radius > Pixels::ZERO {
12025 builder.curve_to(bottom_right - curve_width, bottom_right);
12026 }
12027
12028 let bottom_left = point(line.start_x, bottom_right.y);
12029 builder.line_to(bottom_left + curve_width);
12030 if self.corner_radius > Pixels::ZERO {
12031 builder.curve_to(bottom_left - curve_height, bottom_left);
12032 }
12033 }
12034 }
12035
12036 if first_line.start_x > last_line.start_x {
12037 let curve_width = curve_width(last_line.start_x, first_line.start_x);
12038 let second_top_left = point(last_line.start_x, start_y + self.line_height);
12039 builder.line_to(second_top_left + curve_height);
12040 if self.corner_radius > Pixels::ZERO {
12041 builder.curve_to(second_top_left + curve_width, second_top_left);
12042 }
12043 let first_bottom_left = point(first_line.start_x, second_top_left.y);
12044 builder.line_to(first_bottom_left - curve_width);
12045 if self.corner_radius > Pixels::ZERO {
12046 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
12047 }
12048 }
12049
12050 builder.line_to(first_top_left + curve_height);
12051 if self.corner_radius > Pixels::ZERO {
12052 builder.curve_to(first_top_left + top_curve_width, first_top_left);
12053 }
12054 builder.line_to(first_top_right - top_curve_width);
12055
12056 if let Ok(path) = builder.build() {
12057 window.paint_path(path, self.color);
12058 }
12059 }
12060}
12061
12062pub(crate) struct StickyHeader {
12063 pub item: language::OutlineItem<Anchor>,
12064 pub sticky_row: DisplayRow,
12065 pub start_point: Point,
12066 pub offset: ScrollOffset,
12067}
12068
12069enum CursorPopoverType {
12070 CodeContextMenu,
12071 EditPrediction,
12072}
12073
12074pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
12075 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
12076}
12077
12078fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
12079 (delta.pow(1.2) / 300.0).into()
12080}
12081
12082pub fn register_action<T: Action>(
12083 editor: &Entity<Editor>,
12084 window: &mut Window,
12085 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
12086) {
12087 let editor = editor.clone();
12088 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
12089 let action = action.downcast_ref().unwrap();
12090 if phase == DispatchPhase::Bubble {
12091 editor.update(cx, |editor, cx| {
12092 listener(editor, action, window, cx);
12093 })
12094 }
12095 })
12096}
12097
12098/// Shared between `prepaint` and `compute_auto_height_layout` to ensure
12099/// both full and auto-height editors compute wrap widths consistently.
12100fn calculate_wrap_width(
12101 soft_wrap: SoftWrap,
12102 editor_width: Pixels,
12103 em_width: Pixels,
12104) -> Option<Pixels> {
12105 let wrap_width_for = |column: u32| (column as f32 * em_width).ceil();
12106
12107 match soft_wrap {
12108 SoftWrap::GitDiff => None,
12109 SoftWrap::None => Some(wrap_width_for(MAX_LINE_LEN as u32 / 2)),
12110 SoftWrap::EditorWidth => Some(editor_width),
12111 SoftWrap::Column(column) => Some(wrap_width_for(column)),
12112 SoftWrap::Bounded(column) => Some(editor_width.min(wrap_width_for(column))),
12113 }
12114}
12115
12116fn compute_auto_height_layout(
12117 editor: &mut Editor,
12118 min_lines: usize,
12119 max_lines: Option<usize>,
12120 known_dimensions: Size<Option<Pixels>>,
12121 available_width: AvailableSpace,
12122 window: &mut Window,
12123 cx: &mut Context<Editor>,
12124) -> Option<Size<Pixels>> {
12125 let width = known_dimensions.width.or({
12126 if let AvailableSpace::Definite(available_width) = available_width {
12127 Some(available_width)
12128 } else {
12129 None
12130 }
12131 })?;
12132 if let Some(height) = known_dimensions.height {
12133 return Some(size(width, height));
12134 }
12135
12136 let style = editor.style.as_ref().unwrap();
12137 let font_id = window.text_system().resolve_font(&style.text.font());
12138 let font_size = style.text.font_size.to_pixels(window.rem_size());
12139 let line_height = style.text.line_height_in_pixels(window.rem_size());
12140 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
12141
12142 let mut snapshot = editor.snapshot(window, cx);
12143 let gutter_dimensions = snapshot.gutter_dimensions(font_id, font_size, style, window, cx);
12144
12145 editor.gutter_dimensions = gutter_dimensions;
12146 let text_width = width - gutter_dimensions.width;
12147 let overscroll = size(em_width, px(0.));
12148
12149 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
12150 let wrap_width = calculate_wrap_width(editor.soft_wrap_mode(cx), editor_width, em_width);
12151 if wrap_width.is_some() && editor.set_wrap_width(wrap_width, cx) {
12152 snapshot = editor.snapshot(window, cx);
12153 }
12154
12155 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
12156
12157 let min_height = line_height * min_lines as f32;
12158 let content_height = scroll_height.max(min_height);
12159
12160 let final_height = if let Some(max_lines) = max_lines {
12161 let max_height = line_height * max_lines as f32;
12162 content_height.min(max_height)
12163 } else {
12164 content_height
12165 };
12166
12167 Some(size(width, final_height))
12168}
12169
12170#[cfg(test)]
12171mod tests {
12172 use super::*;
12173 use crate::{
12174 Editor, MultiBuffer, SelectionEffects,
12175 display_map::{BlockPlacement, BlockProperties},
12176 editor_tests::{init_test, update_test_language_settings},
12177 };
12178 use gpui::{TestAppContext, VisualTestContext};
12179 use language::{Buffer, language_settings, tree_sitter_python};
12180 use log::info;
12181 use rand::{RngCore, rngs::StdRng};
12182 use std::num::NonZeroU32;
12183 use util::test::sample_text;
12184
12185 #[gpui::test]
12186 async fn test_soft_wrap_editor_width_auto_height_editor(cx: &mut TestAppContext) {
12187 init_test(cx, |_| {});
12188 // Ensure wrap completes synchronously by giving block_with_timeout enough ticks
12189 cx.dispatcher.scheduler().set_timeout_ticks(1000..=1000);
12190
12191 let window = cx.add_window(|window, cx| {
12192 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
12193 let mut editor = Editor::new(
12194 EditorMode::AutoHeight {
12195 min_lines: 1,
12196 max_lines: None,
12197 },
12198 buffer,
12199 None,
12200 window,
12201 cx,
12202 );
12203 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12204 editor
12205 });
12206 let cx = &mut VisualTestContext::from_window(*window, cx);
12207 let editor = window.root(cx).unwrap();
12208 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12209
12210 for x in 1..=100 {
12211 let (_, state) = cx.draw(
12212 Default::default(),
12213 size(px(200. + 0.13 * x as f32), px(500.)),
12214 |_, _| EditorElement::new(&editor, style.clone()),
12215 );
12216
12217 assert!(
12218 state.position_map.scroll_max.x == 0.,
12219 "Soft wrapped editor should have no horizontal scrolling!"
12220 );
12221 }
12222 }
12223
12224 #[gpui::test]
12225 async fn test_soft_wrap_editor_width_full_editor(cx: &mut TestAppContext) {
12226 init_test(cx, |_| {});
12227 // Ensure wrap completes synchronously by giving block_with_timeout enough ticks
12228 cx.dispatcher.scheduler().set_timeout_ticks(1000..=1000);
12229
12230 let window = cx.add_window(|window, cx| {
12231 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
12232 let mut editor = Editor::new(EditorMode::full(), buffer, None, window, cx);
12233 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12234 editor
12235 });
12236 let cx = &mut VisualTestContext::from_window(*window, cx);
12237 let editor = window.root(cx).unwrap();
12238 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12239
12240 for x in 1..=100 {
12241 let (_, state) = cx.draw(
12242 Default::default(),
12243 size(px(200. + 0.13 * x as f32), px(500.)),
12244 |_, _| EditorElement::new(&editor, style.clone()),
12245 );
12246
12247 assert!(
12248 state.position_map.scroll_max.x == 0.,
12249 "Soft wrapped editor should have no horizontal scrolling!"
12250 );
12251 }
12252 }
12253
12254 #[gpui::test]
12255 fn test_layout_line_numbers(cx: &mut TestAppContext) {
12256 init_test(cx, |_| {});
12257 let window = cx.add_window(|window, cx| {
12258 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
12259 Editor::new(EditorMode::full(), buffer, None, window, cx)
12260 });
12261
12262 let editor = window.root(cx).unwrap();
12263 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12264 let line_height = window
12265 .update(cx, |_, window, _| {
12266 style.text.line_height_in_pixels(window.rem_size())
12267 })
12268 .unwrap();
12269 let element = EditorElement::new(&editor, style);
12270 let snapshot = window
12271 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
12272 .unwrap();
12273
12274 let layouts = cx
12275 .update_window(*window, |_, window, cx| {
12276 element.layout_line_numbers(
12277 None,
12278 GutterDimensions {
12279 left_padding: Pixels::ZERO,
12280 right_padding: Pixels::ZERO,
12281 width: px(30.0),
12282 margin: Pixels::ZERO,
12283 git_blame_entries_width: None,
12284 },
12285 line_height,
12286 gpui::Point::default(),
12287 DisplayRow(0)..DisplayRow(6),
12288 &(0..6)
12289 .map(|row| RowInfo {
12290 buffer_row: Some(row),
12291 ..Default::default()
12292 })
12293 .collect::<Vec<_>>(),
12294 &BTreeMap::default(),
12295 Some(DisplayRow(0)),
12296 &snapshot,
12297 window,
12298 cx,
12299 )
12300 })
12301 .unwrap();
12302 assert_eq!(layouts.len(), 6);
12303
12304 let relative_rows = window
12305 .update(cx, |editor, window, cx| {
12306 let snapshot = editor.snapshot(window, cx);
12307 snapshot.calculate_relative_line_numbers(
12308 &(DisplayRow(0)..DisplayRow(6)),
12309 DisplayRow(3),
12310 false,
12311 )
12312 })
12313 .unwrap();
12314 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12315 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12316 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12317 // current line has no relative number
12318 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12319 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12320 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12321
12322 // works if cursor is before screen
12323 let relative_rows = window
12324 .update(cx, |editor, window, cx| {
12325 let snapshot = editor.snapshot(window, cx);
12326 snapshot.calculate_relative_line_numbers(
12327 &(DisplayRow(3)..DisplayRow(6)),
12328 DisplayRow(1),
12329 false,
12330 )
12331 })
12332 .unwrap();
12333 assert_eq!(relative_rows.len(), 3);
12334 assert_eq!(relative_rows[&DisplayRow(3)], 2);
12335 assert_eq!(relative_rows[&DisplayRow(4)], 3);
12336 assert_eq!(relative_rows[&DisplayRow(5)], 4);
12337
12338 // works if cursor is after screen
12339 let relative_rows = window
12340 .update(cx, |editor, window, cx| {
12341 let snapshot = editor.snapshot(window, cx);
12342 snapshot.calculate_relative_line_numbers(
12343 &(DisplayRow(0)..DisplayRow(3)),
12344 DisplayRow(6),
12345 false,
12346 )
12347 })
12348 .unwrap();
12349 assert_eq!(relative_rows.len(), 3);
12350 assert_eq!(relative_rows[&DisplayRow(0)], 5);
12351 assert_eq!(relative_rows[&DisplayRow(1)], 4);
12352 assert_eq!(relative_rows[&DisplayRow(2)], 3);
12353
12354 const DELETED_LINE: u32 = 3;
12355 let layouts = cx
12356 .update_window(*window, |_, window, cx| {
12357 element.layout_line_numbers(
12358 None,
12359 GutterDimensions {
12360 left_padding: Pixels::ZERO,
12361 right_padding: Pixels::ZERO,
12362 width: px(30.0),
12363 margin: Pixels::ZERO,
12364 git_blame_entries_width: None,
12365 },
12366 line_height,
12367 gpui::Point::default(),
12368 DisplayRow(0)..DisplayRow(6),
12369 &(0..6)
12370 .map(|row| RowInfo {
12371 buffer_row: Some(row),
12372 diff_status: (row == DELETED_LINE).then(|| {
12373 DiffHunkStatus::deleted(
12374 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
12375 )
12376 }),
12377 ..Default::default()
12378 })
12379 .collect::<Vec<_>>(),
12380 &BTreeMap::default(),
12381 Some(DisplayRow(0)),
12382 &snapshot,
12383 window,
12384 cx,
12385 )
12386 })
12387 .unwrap();
12388 assert_eq!(layouts.len(), 5,);
12389 assert!(
12390 layouts.get(&MultiBufferRow(DELETED_LINE)).is_none(),
12391 "Deleted line should not have a line number"
12392 );
12393 }
12394
12395 #[gpui::test]
12396 async fn test_layout_line_numbers_with_folded_lines(cx: &mut TestAppContext) {
12397 init_test(cx, |_| {});
12398
12399 let python_lang = languages::language("python", tree_sitter_python::LANGUAGE.into());
12400
12401 let window = cx.add_window(|window, cx| {
12402 let buffer = cx.new(|cx| {
12403 Buffer::local(
12404 indoc::indoc! {"
12405 fn test() -> int {
12406 return 2;
12407 }
12408
12409 fn another_test() -> int {
12410 # This is a very peculiar method that is hard to grasp.
12411 return 4;
12412 }
12413 "},
12414 cx,
12415 )
12416 .with_language(python_lang, cx)
12417 });
12418
12419 let buffer = MultiBuffer::build_from_buffer(buffer, cx);
12420 Editor::new(EditorMode::full(), buffer, None, window, cx)
12421 });
12422
12423 let editor = window.root(cx).unwrap();
12424 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12425 let line_height = window
12426 .update(cx, |_, window, _| {
12427 style.text.line_height_in_pixels(window.rem_size())
12428 })
12429 .unwrap();
12430 let element = EditorElement::new(&editor, style);
12431 let snapshot = window
12432 .update(cx, |editor, window, cx| {
12433 editor.fold_at(MultiBufferRow(0), window, cx);
12434 editor.snapshot(window, cx)
12435 })
12436 .unwrap();
12437
12438 let layouts = cx
12439 .update_window(*window, |_, window, cx| {
12440 element.layout_line_numbers(
12441 None,
12442 GutterDimensions {
12443 left_padding: Pixels::ZERO,
12444 right_padding: Pixels::ZERO,
12445 width: px(30.0),
12446 margin: Pixels::ZERO,
12447 git_blame_entries_width: None,
12448 },
12449 line_height,
12450 gpui::Point::default(),
12451 DisplayRow(0)..DisplayRow(6),
12452 &(0..6)
12453 .map(|row| RowInfo {
12454 buffer_row: Some(row),
12455 ..Default::default()
12456 })
12457 .collect::<Vec<_>>(),
12458 &BTreeMap::default(),
12459 Some(DisplayRow(3)),
12460 &snapshot,
12461 window,
12462 cx,
12463 )
12464 })
12465 .unwrap();
12466 assert_eq!(layouts.len(), 6);
12467
12468 let relative_rows = window
12469 .update(cx, |editor, window, cx| {
12470 let snapshot = editor.snapshot(window, cx);
12471 snapshot.calculate_relative_line_numbers(
12472 &(DisplayRow(0)..DisplayRow(6)),
12473 DisplayRow(3),
12474 false,
12475 )
12476 })
12477 .unwrap();
12478 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12479 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12480 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12481 // current line has no relative number
12482 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12483 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12484 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12485 }
12486
12487 #[gpui::test]
12488 fn test_layout_line_numbers_wrapping(cx: &mut TestAppContext) {
12489 init_test(cx, |_| {});
12490 let window = cx.add_window(|window, cx| {
12491 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
12492 Editor::new(EditorMode::full(), buffer, None, window, cx)
12493 });
12494
12495 update_test_language_settings(cx, |s| {
12496 s.defaults.preferred_line_length = Some(5_u32);
12497 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
12498 });
12499
12500 let editor = window.root(cx).unwrap();
12501 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12502 let line_height = window
12503 .update(cx, |_, window, _| {
12504 style.text.line_height_in_pixels(window.rem_size())
12505 })
12506 .unwrap();
12507 let element = EditorElement::new(&editor, style);
12508 let snapshot = window
12509 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
12510 .unwrap();
12511
12512 let layouts = cx
12513 .update_window(*window, |_, window, cx| {
12514 element.layout_line_numbers(
12515 None,
12516 GutterDimensions {
12517 left_padding: Pixels::ZERO,
12518 right_padding: Pixels::ZERO,
12519 width: px(30.0),
12520 margin: Pixels::ZERO,
12521 git_blame_entries_width: None,
12522 },
12523 line_height,
12524 gpui::Point::default(),
12525 DisplayRow(0)..DisplayRow(6),
12526 &(0..6)
12527 .map(|row| RowInfo {
12528 buffer_row: Some(row),
12529 ..Default::default()
12530 })
12531 .collect::<Vec<_>>(),
12532 &BTreeMap::default(),
12533 Some(DisplayRow(0)),
12534 &snapshot,
12535 window,
12536 cx,
12537 )
12538 })
12539 .unwrap();
12540 assert_eq!(layouts.len(), 3);
12541
12542 let relative_rows = window
12543 .update(cx, |editor, window, cx| {
12544 let snapshot = editor.snapshot(window, cx);
12545 snapshot.calculate_relative_line_numbers(
12546 &(DisplayRow(0)..DisplayRow(6)),
12547 DisplayRow(3),
12548 true,
12549 )
12550 })
12551 .unwrap();
12552
12553 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12554 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12555 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12556 // current line has no relative number
12557 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12558 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12559 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12560
12561 let layouts = cx
12562 .update_window(*window, |_, window, cx| {
12563 element.layout_line_numbers(
12564 None,
12565 GutterDimensions {
12566 left_padding: Pixels::ZERO,
12567 right_padding: Pixels::ZERO,
12568 width: px(30.0),
12569 margin: Pixels::ZERO,
12570 git_blame_entries_width: None,
12571 },
12572 line_height,
12573 gpui::Point::default(),
12574 DisplayRow(0)..DisplayRow(6),
12575 &(0..6)
12576 .map(|row| RowInfo {
12577 buffer_row: Some(row),
12578 diff_status: Some(DiffHunkStatus::deleted(
12579 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
12580 )),
12581 ..Default::default()
12582 })
12583 .collect::<Vec<_>>(),
12584 &BTreeMap::from_iter([(DisplayRow(0), LineHighlightSpec::default())]),
12585 Some(DisplayRow(0)),
12586 &snapshot,
12587 window,
12588 cx,
12589 )
12590 })
12591 .unwrap();
12592 assert!(
12593 layouts.is_empty(),
12594 "Deleted lines should have no line number"
12595 );
12596
12597 let relative_rows = window
12598 .update(cx, |editor, window, cx| {
12599 let snapshot = editor.snapshot(window, cx);
12600 snapshot.calculate_relative_line_numbers(
12601 &(DisplayRow(0)..DisplayRow(6)),
12602 DisplayRow(3),
12603 true,
12604 )
12605 })
12606 .unwrap();
12607
12608 // Deleted lines should still have relative numbers
12609 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12610 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12611 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12612 // current line, even if deleted, has no relative number
12613 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12614 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12615 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12616 }
12617
12618 #[gpui::test]
12619 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
12620 init_test(cx, |_| {});
12621
12622 let window = cx.add_window(|window, cx| {
12623 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
12624 Editor::new(EditorMode::full(), buffer, None, window, cx)
12625 });
12626 let cx = &mut VisualTestContext::from_window(*window, cx);
12627 let editor = window.root(cx).unwrap();
12628 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12629
12630 window
12631 .update(cx, |editor, window, cx| {
12632 editor.cursor_offset_on_selection = true;
12633 editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
12634 s.select_ranges([
12635 Point::new(0, 0)..Point::new(1, 0),
12636 Point::new(3, 2)..Point::new(3, 3),
12637 Point::new(5, 6)..Point::new(6, 0),
12638 ]);
12639 });
12640 })
12641 .unwrap();
12642
12643 let (_, state) = cx.draw(
12644 point(px(500.), px(500.)),
12645 size(px(500.), px(500.)),
12646 |_, _| EditorElement::new(&editor, style),
12647 );
12648
12649 assert_eq!(state.selections.len(), 1);
12650 let local_selections = &state.selections[0].1;
12651 assert_eq!(local_selections.len(), 3);
12652 // moves cursor back one line
12653 assert_eq!(
12654 local_selections[0].head,
12655 DisplayPoint::new(DisplayRow(0), 6)
12656 );
12657 assert_eq!(
12658 local_selections[0].range,
12659 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
12660 );
12661
12662 // moves cursor back one column
12663 assert_eq!(
12664 local_selections[1].range,
12665 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
12666 );
12667 assert_eq!(
12668 local_selections[1].head,
12669 DisplayPoint::new(DisplayRow(3), 2)
12670 );
12671
12672 // leaves cursor on the max point
12673 assert_eq!(
12674 local_selections[2].range,
12675 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
12676 );
12677 assert_eq!(
12678 local_selections[2].head,
12679 DisplayPoint::new(DisplayRow(6), 0)
12680 );
12681
12682 // active lines does not include 1 (even though the range of the selection does)
12683 assert_eq!(
12684 state.active_rows.keys().cloned().collect::<Vec<_>>(),
12685 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
12686 );
12687 }
12688
12689 #[gpui::test]
12690 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
12691 init_test(cx, |_| {});
12692
12693 let window = cx.add_window(|window, cx| {
12694 let buffer = MultiBuffer::build_simple("", cx);
12695 Editor::new(EditorMode::full(), buffer, None, window, cx)
12696 });
12697 let cx = &mut VisualTestContext::from_window(*window, cx);
12698 let editor = window.root(cx).unwrap();
12699 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12700 window
12701 .update(cx, |editor, window, cx| {
12702 editor.set_placeholder_text("hello", window, cx);
12703 editor.insert_blocks(
12704 [BlockProperties {
12705 style: BlockStyle::Fixed,
12706 placement: BlockPlacement::Above(Anchor::min()),
12707 height: Some(3),
12708 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
12709 priority: 0,
12710 }],
12711 None,
12712 cx,
12713 );
12714
12715 // Blur the editor so that it displays placeholder text.
12716 window.blur();
12717 })
12718 .unwrap();
12719
12720 let (_, state) = cx.draw(
12721 point(px(500.), px(500.)),
12722 size(px(500.), px(500.)),
12723 |_, _| EditorElement::new(&editor, style),
12724 );
12725 assert_eq!(state.position_map.line_layouts.len(), 4);
12726 assert_eq!(state.line_numbers.len(), 1);
12727 assert_eq!(
12728 state
12729 .line_numbers
12730 .get(&MultiBufferRow(0))
12731 .map(|line_number| line_number
12732 .segments
12733 .first()
12734 .unwrap()
12735 .shaped_line
12736 .text
12737 .as_ref()),
12738 Some("1")
12739 );
12740 }
12741
12742 #[gpui::test]
12743 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
12744 const TAB_SIZE: u32 = 4;
12745
12746 let input_text = "\t \t|\t| a b";
12747 let expected_invisibles = vec![
12748 Invisible::Tab {
12749 line_start_offset: 0,
12750 line_end_offset: TAB_SIZE as usize,
12751 },
12752 Invisible::Whitespace {
12753 line_offset: TAB_SIZE as usize,
12754 },
12755 Invisible::Tab {
12756 line_start_offset: TAB_SIZE as usize + 1,
12757 line_end_offset: TAB_SIZE as usize * 2,
12758 },
12759 Invisible::Tab {
12760 line_start_offset: TAB_SIZE as usize * 2 + 1,
12761 line_end_offset: TAB_SIZE as usize * 3,
12762 },
12763 Invisible::Whitespace {
12764 line_offset: TAB_SIZE as usize * 3 + 1,
12765 },
12766 Invisible::Whitespace {
12767 line_offset: TAB_SIZE as usize * 3 + 3,
12768 },
12769 ];
12770 assert_eq!(
12771 expected_invisibles.len(),
12772 input_text
12773 .chars()
12774 .filter(|initial_char| initial_char.is_whitespace())
12775 .count(),
12776 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
12777 );
12778
12779 for show_line_numbers in [true, false] {
12780 init_test(cx, |s| {
12781 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12782 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
12783 });
12784
12785 let actual_invisibles = collect_invisibles_from_new_editor(
12786 cx,
12787 EditorMode::full(),
12788 input_text,
12789 px(500.0),
12790 show_line_numbers,
12791 );
12792
12793 assert_eq!(expected_invisibles, actual_invisibles);
12794 }
12795 }
12796
12797 #[gpui::test]
12798 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
12799 init_test(cx, |s| {
12800 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12801 s.defaults.tab_size = NonZeroU32::new(4);
12802 });
12803
12804 for editor_mode_without_invisibles in [
12805 EditorMode::SingleLine,
12806 EditorMode::AutoHeight {
12807 min_lines: 1,
12808 max_lines: Some(100),
12809 },
12810 ] {
12811 for show_line_numbers in [true, false] {
12812 let invisibles = collect_invisibles_from_new_editor(
12813 cx,
12814 editor_mode_without_invisibles.clone(),
12815 "\t\t\t| | a b",
12816 px(500.0),
12817 show_line_numbers,
12818 );
12819 assert!(
12820 invisibles.is_empty(),
12821 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
12822 );
12823 }
12824 }
12825 }
12826
12827 #[gpui::test]
12828 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
12829 let tab_size = 4;
12830 let input_text = "a\tbcd ".repeat(9);
12831 let repeated_invisibles = [
12832 Invisible::Tab {
12833 line_start_offset: 1,
12834 line_end_offset: tab_size as usize,
12835 },
12836 Invisible::Whitespace {
12837 line_offset: tab_size as usize + 3,
12838 },
12839 Invisible::Whitespace {
12840 line_offset: tab_size as usize + 4,
12841 },
12842 Invisible::Whitespace {
12843 line_offset: tab_size as usize + 5,
12844 },
12845 Invisible::Whitespace {
12846 line_offset: tab_size as usize + 6,
12847 },
12848 Invisible::Whitespace {
12849 line_offset: tab_size as usize + 7,
12850 },
12851 ];
12852 let expected_invisibles = std::iter::once(repeated_invisibles)
12853 .cycle()
12854 .take(9)
12855 .flatten()
12856 .collect::<Vec<_>>();
12857 assert_eq!(
12858 expected_invisibles.len(),
12859 input_text
12860 .chars()
12861 .filter(|initial_char| initial_char.is_whitespace())
12862 .count(),
12863 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
12864 );
12865 info!("Expected invisibles: {expected_invisibles:?}");
12866
12867 init_test(cx, |_| {});
12868
12869 // Put the same string with repeating whitespace pattern into editors of various size,
12870 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
12871 let resize_step = 10.0;
12872 let mut editor_width = 200.0;
12873 while editor_width <= 1000.0 {
12874 for show_line_numbers in [true, false] {
12875 update_test_language_settings(cx, |s| {
12876 s.defaults.tab_size = NonZeroU32::new(tab_size);
12877 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12878 s.defaults.preferred_line_length = Some(editor_width as u32);
12879 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
12880 });
12881
12882 let actual_invisibles = collect_invisibles_from_new_editor(
12883 cx,
12884 EditorMode::full(),
12885 &input_text,
12886 px(editor_width),
12887 show_line_numbers,
12888 );
12889
12890 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
12891 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
12892 let mut i = 0;
12893 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
12894 i = actual_index;
12895 match expected_invisibles.get(i) {
12896 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
12897 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
12898 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
12899 _ => {
12900 panic!(
12901 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
12902 )
12903 }
12904 },
12905 None => {
12906 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
12907 }
12908 }
12909 }
12910 let missing_expected_invisibles = &expected_invisibles[i + 1..];
12911 assert!(
12912 missing_expected_invisibles.is_empty(),
12913 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
12914 );
12915
12916 editor_width += resize_step;
12917 }
12918 }
12919 }
12920
12921 fn collect_invisibles_from_new_editor(
12922 cx: &mut TestAppContext,
12923 editor_mode: EditorMode,
12924 input_text: &str,
12925 editor_width: Pixels,
12926 show_line_numbers: bool,
12927 ) -> Vec<Invisible> {
12928 info!(
12929 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
12930 f32::from(editor_width)
12931 );
12932 let window = cx.add_window(|window, cx| {
12933 let buffer = MultiBuffer::build_simple(input_text, cx);
12934 Editor::new(editor_mode, buffer, None, window, cx)
12935 });
12936 let cx = &mut VisualTestContext::from_window(*window, cx);
12937 let editor = window.root(cx).unwrap();
12938
12939 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12940 window
12941 .update(cx, |editor, _, cx| {
12942 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12943 editor.set_wrap_width(Some(editor_width), cx);
12944 editor.set_show_line_numbers(show_line_numbers, cx);
12945 })
12946 .unwrap();
12947 let (_, state) = cx.draw(
12948 point(px(500.), px(500.)),
12949 size(px(500.), px(500.)),
12950 |_, _| EditorElement::new(&editor, style),
12951 );
12952 state
12953 .position_map
12954 .line_layouts
12955 .iter()
12956 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
12957 .cloned()
12958 .collect()
12959 }
12960
12961 #[gpui::test]
12962 fn test_merge_overlapping_ranges() {
12963 let base_bg = Hsla::white();
12964 let color1 = Hsla {
12965 h: 0.0,
12966 s: 0.5,
12967 l: 0.5,
12968 a: 0.5,
12969 };
12970 let color2 = Hsla {
12971 h: 120.0,
12972 s: 0.5,
12973 l: 0.5,
12974 a: 0.5,
12975 };
12976
12977 let display_point = |col| DisplayPoint::new(DisplayRow(0), col);
12978 let cols = |v: &Vec<(Range<DisplayPoint>, Hsla)>| -> Vec<(u32, u32)> {
12979 v.iter()
12980 .map(|(r, _)| (r.start.column(), r.end.column()))
12981 .collect()
12982 };
12983
12984 // Test overlapping ranges blend colors
12985 let overlapping = vec![
12986 (display_point(5)..display_point(15), color1),
12987 (display_point(10)..display_point(20), color2),
12988 ];
12989 let result = EditorElement::merge_overlapping_ranges(overlapping, base_bg);
12990 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
12991
12992 // Test middle segment should have blended color
12993 let blended = Hsla::blend(Hsla::blend(base_bg, color1), color2);
12994 assert_eq!(result[1].1, blended);
12995
12996 // Test adjacent same-color ranges merge
12997 let adjacent_same = vec![
12998 (display_point(5)..display_point(10), color1),
12999 (display_point(10)..display_point(15), color1),
13000 ];
13001 let result = EditorElement::merge_overlapping_ranges(adjacent_same, base_bg);
13002 assert_eq!(cols(&result), vec![(5, 15)]);
13003
13004 // Test contained range splits
13005 let contained = vec![
13006 (display_point(5)..display_point(20), color1),
13007 (display_point(10)..display_point(15), color2),
13008 ];
13009 let result = EditorElement::merge_overlapping_ranges(contained, base_bg);
13010 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
13011
13012 // Test multiple overlaps split at every boundary
13013 let color3 = Hsla {
13014 h: 240.0,
13015 s: 0.5,
13016 l: 0.5,
13017 a: 0.5,
13018 };
13019 let complex = vec![
13020 (display_point(5)..display_point(12), color1),
13021 (display_point(8)..display_point(16), color2),
13022 (display_point(10)..display_point(14), color3),
13023 ];
13024 let result = EditorElement::merge_overlapping_ranges(complex, base_bg);
13025 assert_eq!(
13026 cols(&result),
13027 vec![(5, 8), (8, 10), (10, 12), (12, 14), (14, 16)]
13028 );
13029 }
13030
13031 #[gpui::test]
13032 fn test_bg_segments_per_row() {
13033 let base_bg = Hsla::white();
13034
13035 // Case A: selection spans three display rows: row 1 [5, end), full row 2, row 3 [0, 7)
13036 {
13037 let selection_color = Hsla {
13038 h: 200.0,
13039 s: 0.5,
13040 l: 0.5,
13041 a: 0.5,
13042 };
13043 let player_color = PlayerColor {
13044 cursor: selection_color,
13045 background: selection_color,
13046 selection: selection_color,
13047 };
13048
13049 let spanning_selection = SelectionLayout {
13050 head: DisplayPoint::new(DisplayRow(3), 7),
13051 cursor_shape: CursorShape::Bar,
13052 is_newest: true,
13053 is_local: true,
13054 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 7),
13055 active_rows: DisplayRow(1)..DisplayRow(4),
13056 user_name: None,
13057 };
13058
13059 let selections = vec![(player_color, vec![spanning_selection])];
13060 let result = EditorElement::bg_segments_per_row(
13061 DisplayRow(0)..DisplayRow(5),
13062 &selections,
13063 &[],
13064 base_bg,
13065 );
13066
13067 assert_eq!(result.len(), 5);
13068 assert!(result[0].is_empty());
13069 assert_eq!(result[1].len(), 1);
13070 assert_eq!(result[2].len(), 1);
13071 assert_eq!(result[3].len(), 1);
13072 assert!(result[4].is_empty());
13073
13074 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
13075 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
13076 assert_eq!(result[1][0].0.end.column(), u32::MAX);
13077 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
13078 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
13079 assert_eq!(result[2][0].0.end.column(), u32::MAX);
13080 assert_eq!(result[3][0].0.start, DisplayPoint::new(DisplayRow(3), 0));
13081 assert_eq!(result[3][0].0.end, DisplayPoint::new(DisplayRow(3), 7));
13082 }
13083
13084 // Case B: selection ends exactly at the start of row 3, excluding row 3
13085 {
13086 let selection_color = Hsla {
13087 h: 120.0,
13088 s: 0.5,
13089 l: 0.5,
13090 a: 0.5,
13091 };
13092 let player_color = PlayerColor {
13093 cursor: selection_color,
13094 background: selection_color,
13095 selection: selection_color,
13096 };
13097
13098 let selection = SelectionLayout {
13099 head: DisplayPoint::new(DisplayRow(2), 0),
13100 cursor_shape: CursorShape::Bar,
13101 is_newest: true,
13102 is_local: true,
13103 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 0),
13104 active_rows: DisplayRow(1)..DisplayRow(3),
13105 user_name: None,
13106 };
13107
13108 let selections = vec![(player_color, vec![selection])];
13109 let result = EditorElement::bg_segments_per_row(
13110 DisplayRow(0)..DisplayRow(4),
13111 &selections,
13112 &[],
13113 base_bg,
13114 );
13115
13116 assert_eq!(result.len(), 4);
13117 assert!(result[0].is_empty());
13118 assert_eq!(result[1].len(), 1);
13119 assert_eq!(result[2].len(), 1);
13120 assert!(result[3].is_empty());
13121
13122 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
13123 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
13124 assert_eq!(result[1][0].0.end.column(), u32::MAX);
13125 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
13126 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
13127 assert_eq!(result[2][0].0.end.column(), u32::MAX);
13128 }
13129 }
13130
13131 #[cfg(test)]
13132 fn generate_test_run(len: usize, color: Hsla) -> TextRun {
13133 TextRun {
13134 len,
13135 color,
13136 ..Default::default()
13137 }
13138 }
13139
13140 #[gpui::test]
13141 fn test_split_runs_by_bg_segments(cx: &mut gpui::TestAppContext) {
13142 init_test(cx, |_| {});
13143
13144 let dx = |start: u32, end: u32| {
13145 DisplayPoint::new(DisplayRow(0), start)..DisplayPoint::new(DisplayRow(0), end)
13146 };
13147
13148 let text_color = Hsla {
13149 h: 210.0,
13150 s: 0.1,
13151 l: 0.4,
13152 a: 1.0,
13153 };
13154 let bg_1 = Hsla {
13155 h: 30.0,
13156 s: 0.6,
13157 l: 0.8,
13158 a: 1.0,
13159 };
13160 let bg_2 = Hsla {
13161 h: 200.0,
13162 s: 0.6,
13163 l: 0.2,
13164 a: 1.0,
13165 };
13166 let min_contrast = 45.0;
13167 let adjusted_bg1 = ensure_minimum_contrast(text_color, bg_1, min_contrast);
13168 let adjusted_bg2 = ensure_minimum_contrast(text_color, bg_2, min_contrast);
13169
13170 // Case A: single run; disjoint segments inside the run
13171 {
13172 let runs = vec![generate_test_run(20, text_color)];
13173 let segs = vec![(dx(5, 10), bg_1), (dx(12, 16), bg_2)];
13174 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13175 // Expected slices: [0,5) [5,10) [10,12) [12,16) [16,20)
13176 assert_eq!(
13177 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13178 vec![5, 5, 2, 4, 4]
13179 );
13180 assert_eq!(out[0].color, text_color);
13181 assert_eq!(out[1].color, adjusted_bg1);
13182 assert_eq!(out[2].color, text_color);
13183 assert_eq!(out[3].color, adjusted_bg2);
13184 assert_eq!(out[4].color, text_color);
13185 }
13186
13187 // Case B: multiple runs; segment extends to end of line (u32::MAX)
13188 {
13189 let runs = vec![
13190 generate_test_run(8, text_color),
13191 generate_test_run(7, text_color),
13192 ];
13193 let segs = vec![(dx(6, u32::MAX), bg_1)];
13194 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13195 // Expected slices across runs: [0,6) [6,8) | [0,7)
13196 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![6, 2, 7]);
13197 assert_eq!(out[0].color, text_color);
13198 assert_eq!(out[1].color, adjusted_bg1);
13199 assert_eq!(out[2].color, adjusted_bg1);
13200 }
13201
13202 // Case C: multi-byte characters
13203 {
13204 // for text: "Hello π δΈη!"
13205 let runs = vec![
13206 generate_test_run(5, text_color), // "Hello"
13207 generate_test_run(6, text_color), // " π "
13208 generate_test_run(6, text_color), // "δΈη"
13209 generate_test_run(1, text_color), // "!"
13210 ];
13211 // selecting "π δΈ"
13212 let segs = vec![(dx(6, 14), bg_1)];
13213 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13214 // "Hello" | " " | "π " | "δΈ" | "η" | "!"
13215 assert_eq!(
13216 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13217 vec![5, 1, 5, 3, 3, 1]
13218 );
13219 assert_eq!(out[0].color, text_color); // "Hello"
13220 assert_eq!(out[2].color, adjusted_bg1); // "π "
13221 assert_eq!(out[3].color, adjusted_bg1); // "δΈ"
13222 assert_eq!(out[4].color, text_color); // "η"
13223 assert_eq!(out[5].color, text_color); // "!"
13224 }
13225
13226 // Case D: split multiple consecutive text runs with segments
13227 {
13228 let segs = vec![
13229 (dx(2, 4), bg_1), // selecting "cd"
13230 (dx(4, 8), bg_2), // selecting "efgh"
13231 (dx(9, 11), bg_1), // selecting "jk"
13232 (dx(12, 16), bg_2), // selecting "mnop"
13233 (dx(18, 19), bg_1), // selecting "s"
13234 ];
13235
13236 // for text: "abcdef"
13237 let runs = vec![
13238 generate_test_run(2, text_color), // ab
13239 generate_test_run(4, text_color), // cdef
13240 ];
13241 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13242 // new splits "ab", "cd", "ef"
13243 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![2, 2, 2]);
13244 assert_eq!(out[0].color, text_color);
13245 assert_eq!(out[1].color, adjusted_bg1);
13246 assert_eq!(out[2].color, adjusted_bg2);
13247
13248 // for text: "ghijklmn"
13249 let runs = vec![
13250 generate_test_run(3, text_color), // ghi
13251 generate_test_run(2, text_color), // jk
13252 generate_test_run(3, text_color), // lmn
13253 ];
13254 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 6); // 2 + 4 from first run
13255 // new splits "gh", "i", "jk", "l", "mn"
13256 assert_eq!(
13257 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13258 vec![2, 1, 2, 1, 2]
13259 );
13260 assert_eq!(out[0].color, adjusted_bg2);
13261 assert_eq!(out[1].color, text_color);
13262 assert_eq!(out[2].color, adjusted_bg1);
13263 assert_eq!(out[3].color, text_color);
13264 assert_eq!(out[4].color, adjusted_bg2);
13265
13266 // for text: "opqrs"
13267 let runs = vec![
13268 generate_test_run(1, text_color), // o
13269 generate_test_run(4, text_color), // pqrs
13270 ];
13271 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 14); // 6 + 3 + 2 + 3 from first two runs
13272 // new splits "o", "p", "qr", "s"
13273 assert_eq!(
13274 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13275 vec![1, 1, 2, 1]
13276 );
13277 assert_eq!(out[0].color, adjusted_bg2);
13278 assert_eq!(out[1].color, adjusted_bg2);
13279 assert_eq!(out[2].color, text_color);
13280 assert_eq!(out[3].color, adjusted_bg1);
13281 }
13282 }
13283
13284 #[test]
13285 fn test_checkerboard_size() {
13286 // line height is smaller than target height, so we just return half the line height
13287 assert_eq!(EditorElement::checkerboard_size(10.0, 20.0), 5.0);
13288
13289 // line height is exactly half the target height, perfect match
13290 assert_eq!(EditorElement::checkerboard_size(20.0, 10.0), 10.0);
13291
13292 // line height is close to half the target height
13293 assert_eq!(EditorElement::checkerboard_size(20.0, 9.0), 10.0);
13294
13295 // line height is close to 1/4 the target height
13296 assert_eq!(EditorElement::checkerboard_size(20.0, 4.8), 5.0);
13297 }
13298
13299 #[gpui::test(iterations = 100)]
13300 fn test_random_checkerboard_size(mut rng: StdRng) {
13301 let line_height = rng.next_u32() as f32;
13302 let target_height = rng.next_u32() as f32;
13303
13304 let result = EditorElement::checkerboard_size(line_height, target_height);
13305
13306 let k = line_height / result;
13307 assert!(k - k.round() < 0.0000001); // approximately integer
13308 assert!((k.round() as u32).is_multiple_of(2));
13309 }
13310
13311 #[test]
13312 fn test_calculate_wrap_width() {
13313 let editor_width = px(800.0);
13314 let em_width = px(8.0);
13315
13316 assert_eq!(
13317 calculate_wrap_width(SoftWrap::GitDiff, editor_width, em_width),
13318 None,
13319 );
13320
13321 assert_eq!(
13322 calculate_wrap_width(SoftWrap::None, editor_width, em_width),
13323 Some(px((MAX_LINE_LEN as f32 / 2.0 * 8.0).ceil())),
13324 );
13325
13326 assert_eq!(
13327 calculate_wrap_width(SoftWrap::EditorWidth, editor_width, em_width),
13328 Some(px(800.0)),
13329 );
13330
13331 assert_eq!(
13332 calculate_wrap_width(SoftWrap::Column(72), editor_width, em_width),
13333 Some(px((72.0 * 8.0_f32).ceil())),
13334 );
13335
13336 assert_eq!(
13337 calculate_wrap_width(SoftWrap::Bounded(72), editor_width, em_width),
13338 Some(px((72.0 * 8.0_f32).ceil())),
13339 );
13340 assert_eq!(
13341 calculate_wrap_width(SoftWrap::Bounded(200), px(400.0), em_width),
13342 Some(px(400.0)),
13343 );
13344 }
13345}