1use crate::{
2 ActiveDiagnostic, BlockId, COLUMNAR_SELECTION_MODIFIERS, CURSORS_VISIBLE_FOR,
3 ChunkRendererContext, ChunkReplacement, ConflictsOurs, ConflictsOursMarker, ConflictsOuter,
4 ConflictsTheirs, ConflictsTheirsMarker, ContextMenuPlacement, CursorShape, CustomBlockId,
5 DisplayDiffHunk, DisplayPoint, DisplayRow, DocumentHighlightRead, DocumentHighlightWrite,
6 EditDisplayMode, Editor, EditorMode, EditorSettings, EditorSnapshot, EditorStyle,
7 FILE_HEADER_HEIGHT, FocusedBlock, GutterDimensions, HalfPageDown, HalfPageUp, HandleInput,
8 HoveredCursor, InlayHintRefreshReason, InlineCompletion, JumpData, LineDown, LineHighlight,
9 LineUp, MAX_LINE_LEN, MIN_LINE_NUMBER_DIGITS, MULTI_BUFFER_EXCERPT_HEADER_HEIGHT, OpenExcerpts,
10 PageDown, PageUp, PhantomBreakpointIndicator, Point, RowExt, RowRangeExt, SelectPhase,
11 SelectedTextHighlight, Selection, SoftWrap, StickyHeaderExcerpt, ToPoint, ToggleFold,
12 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
13 display_map::{
14 Block, BlockContext, BlockStyle, DisplaySnapshot, FoldId, HighlightedChunk, ToDisplayPoint,
15 },
16 editor_settings::{
17 CurrentLineHighlight, DoubleClickInMultibuffer, MultiCursorModifier, ScrollBeyondLastLine,
18 ScrollbarAxes, ScrollbarDiagnostics, ShowScrollbar,
19 },
20 git::blame::{BlameRenderer, GitBlame, GlobalBlameRenderer},
21 hover_popover::{
22 self, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
23 POPOVER_RIGHT_OFFSET, hover_at,
24 },
25 inlay_hint_settings,
26 items::BufferSearchHighlights,
27 mouse_context_menu::{self, MenuPosition},
28 scroll::scroll_amount::ScrollAmount,
29};
30use buffer_diff::{DiffHunkStatus, DiffHunkStatusKind};
31use client::ParticipantIndex;
32use collections::{BTreeMap, HashMap};
33use feature_flags::{DebuggerFeatureFlag, FeatureFlagAppExt};
34use file_icons::FileIcons;
35use git::{
36 Oid,
37 blame::{BlameEntry, ParsedCommitMessage},
38 status::FileStatus,
39};
40use gpui::{
41 Action, Along, AnyElement, App, AppContext, AvailableSpace, Axis as ScrollbarAxis, BorderStyle,
42 Bounds, ClickEvent, ContentMask, Context, Corner, Corners, CursorStyle, DispatchPhase, Edges,
43 Element, ElementInputHandler, Entity, Focusable as _, FontId, GlobalElementId, Hitbox, Hsla,
44 InteractiveElement, IntoElement, Keystroke, Length, ModifiersChangedEvent, MouseButton,
45 MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad, ParentElement, Pixels, ScrollDelta,
46 ScrollHandle, ScrollWheelEvent, ShapedLine, SharedString, Size, StatefulInteractiveElement,
47 Style, Styled, TextRun, TextStyleRefinement, WeakEntity, Window, anchored, deferred, div, fill,
48 linear_color_stop, linear_gradient, outline, point, px, quad, relative, size, solid_background,
49 transparent_black,
50};
51use itertools::Itertools;
52use language::language_settings::{
53 IndentGuideBackgroundColoring, IndentGuideColoring, IndentGuideSettings, ShowWhitespaceSetting,
54};
55use lsp::DiagnosticSeverity;
56use markdown::Markdown;
57use multi_buffer::{
58 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, ExpandInfo, MultiBufferPoint,
59 MultiBufferRow, RowInfo,
60};
61use project::{
62 ProjectPath,
63 debugger::breakpoint_store::Breakpoint,
64 project_settings::{self, GitGutterSetting, GitHunkStyleSetting, ProjectSettings},
65};
66use settings::Settings;
67use smallvec::{SmallVec, smallvec};
68use std::{
69 any::TypeId,
70 borrow::Cow,
71 cmp::{self, Ordering},
72 fmt::{self, Write},
73 iter, mem,
74 ops::{Deref, Range},
75 rc::Rc,
76 sync::Arc,
77 time::Duration,
78};
79use sum_tree::Bias;
80use text::BufferId;
81use theme::{ActiveTheme, Appearance, BufferLineHeight, PlayerColor};
82use ui::{ButtonLike, KeyBinding, POPOVER_Y_PADDING, Tooltip, h_flex, prelude::*};
83use unicode_segmentation::UnicodeSegmentation;
84use util::{RangeExt, ResultExt, debug_panic};
85use workspace::{Workspace, item::Item, notifications::NotifyTaskExt};
86
87const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 7.;
88
89/// Determines what kinds of highlights should be applied to a lines background.
90#[derive(Clone, Copy, Default)]
91struct LineHighlightSpec {
92 selection: bool,
93 breakpoint: bool,
94 _active_stack_frame: bool,
95}
96
97struct SelectionLayout {
98 head: DisplayPoint,
99 cursor_shape: CursorShape,
100 is_newest: bool,
101 is_local: bool,
102 range: Range<DisplayPoint>,
103 active_rows: Range<DisplayRow>,
104 user_name: Option<SharedString>,
105}
106
107impl SelectionLayout {
108 fn new<T: ToPoint + ToDisplayPoint + Clone>(
109 selection: Selection<T>,
110 line_mode: bool,
111 cursor_shape: CursorShape,
112 map: &DisplaySnapshot,
113 is_newest: bool,
114 is_local: bool,
115 user_name: Option<SharedString>,
116 ) -> Self {
117 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
118 let display_selection = point_selection.map(|p| p.to_display_point(map));
119 let mut range = display_selection.range();
120 let mut head = display_selection.head();
121 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
122 ..map.next_line_boundary(point_selection.end).1.row();
123
124 // vim visual line mode
125 if line_mode {
126 let point_range = map.expand_to_line(point_selection.range());
127 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
128 }
129
130 // any vim visual mode (including line mode)
131 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
132 && !range.is_empty()
133 && !selection.reversed
134 {
135 if head.column() > 0 {
136 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
137 } else if head.row().0 > 0 && head != map.max_point() {
138 head = map.clip_point(
139 DisplayPoint::new(
140 head.row().previous_row(),
141 map.line_len(head.row().previous_row()),
142 ),
143 Bias::Left,
144 );
145 // updating range.end is a no-op unless you're cursor is
146 // on the newline containing a multi-buffer divider
147 // in which case the clip_point may have moved the head up
148 // an additional row.
149 range.end = DisplayPoint::new(head.row().next_row(), 0);
150 active_rows.end = head.row();
151 }
152 }
153
154 Self {
155 head,
156 cursor_shape,
157 is_newest,
158 is_local,
159 range,
160 active_rows,
161 user_name,
162 }
163 }
164}
165
166pub struct EditorElement {
167 editor: Entity<Editor>,
168 style: EditorStyle,
169}
170
171type DisplayRowDelta = u32;
172
173impl EditorElement {
174 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
175
176 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
177 Self {
178 editor: editor.clone(),
179 style,
180 }
181 }
182
183 fn register_actions(&self, window: &mut Window, cx: &mut App) {
184 let editor = &self.editor;
185 editor.update(cx, |editor, cx| {
186 for action in editor.editor_actions.borrow().values() {
187 (action)(window, cx)
188 }
189 });
190
191 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
192 crate::clangd_ext::apply_related_actions(editor, window, cx);
193
194 register_action(editor, window, Editor::open_context_menu);
195 register_action(editor, window, Editor::move_left);
196 register_action(editor, window, Editor::move_right);
197 register_action(editor, window, Editor::move_down);
198 register_action(editor, window, Editor::move_down_by_lines);
199 register_action(editor, window, Editor::select_down_by_lines);
200 register_action(editor, window, Editor::move_up);
201 register_action(editor, window, Editor::move_up_by_lines);
202 register_action(editor, window, Editor::select_up_by_lines);
203 register_action(editor, window, Editor::select_page_down);
204 register_action(editor, window, Editor::select_page_up);
205 register_action(editor, window, Editor::cancel);
206 register_action(editor, window, Editor::newline);
207 register_action(editor, window, Editor::newline_above);
208 register_action(editor, window, Editor::newline_below);
209 register_action(editor, window, Editor::backspace);
210 register_action(editor, window, Editor::delete);
211 register_action(editor, window, Editor::tab);
212 register_action(editor, window, Editor::backtab);
213 register_action(editor, window, Editor::indent);
214 register_action(editor, window, Editor::outdent);
215 register_action(editor, window, Editor::autoindent);
216 register_action(editor, window, Editor::delete_line);
217 register_action(editor, window, Editor::join_lines);
218 register_action(editor, window, Editor::sort_lines_case_sensitive);
219 register_action(editor, window, Editor::sort_lines_case_insensitive);
220 register_action(editor, window, Editor::reverse_lines);
221 register_action(editor, window, Editor::shuffle_lines);
222 register_action(editor, window, Editor::toggle_case);
223 register_action(editor, window, Editor::convert_to_upper_case);
224 register_action(editor, window, Editor::convert_to_lower_case);
225 register_action(editor, window, Editor::convert_to_title_case);
226 register_action(editor, window, Editor::convert_to_snake_case);
227 register_action(editor, window, Editor::convert_to_kebab_case);
228 register_action(editor, window, Editor::convert_to_upper_camel_case);
229 register_action(editor, window, Editor::convert_to_lower_camel_case);
230 register_action(editor, window, Editor::convert_to_opposite_case);
231 register_action(editor, window, Editor::convert_to_rot13);
232 register_action(editor, window, Editor::convert_to_rot47);
233 register_action(editor, window, Editor::delete_to_previous_word_start);
234 register_action(editor, window, Editor::delete_to_previous_subword_start);
235 register_action(editor, window, Editor::delete_to_next_word_end);
236 register_action(editor, window, Editor::delete_to_next_subword_end);
237 register_action(editor, window, Editor::delete_to_beginning_of_line);
238 register_action(editor, window, Editor::delete_to_end_of_line);
239 register_action(editor, window, Editor::cut_to_end_of_line);
240 register_action(editor, window, Editor::duplicate_line_up);
241 register_action(editor, window, Editor::duplicate_line_down);
242 register_action(editor, window, Editor::duplicate_selection);
243 register_action(editor, window, Editor::move_line_up);
244 register_action(editor, window, Editor::move_line_down);
245 register_action(editor, window, Editor::transpose);
246 register_action(editor, window, Editor::rewrap);
247 register_action(editor, window, Editor::cut);
248 register_action(editor, window, Editor::kill_ring_cut);
249 register_action(editor, window, Editor::kill_ring_yank);
250 register_action(editor, window, Editor::copy);
251 register_action(editor, window, Editor::copy_and_trim);
252 register_action(editor, window, Editor::paste);
253 register_action(editor, window, Editor::undo);
254 register_action(editor, window, Editor::redo);
255 register_action(editor, window, Editor::move_page_up);
256 register_action(editor, window, Editor::move_page_down);
257 register_action(editor, window, Editor::next_screen);
258 register_action(editor, window, Editor::scroll_cursor_top);
259 register_action(editor, window, Editor::scroll_cursor_center);
260 register_action(editor, window, Editor::scroll_cursor_bottom);
261 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
262 register_action(editor, window, |editor, _: &LineDown, window, cx| {
263 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
264 });
265 register_action(editor, window, |editor, _: &LineUp, window, cx| {
266 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
267 });
268 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
269 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
270 });
271 register_action(
272 editor,
273 window,
274 |editor, HandleInput(text): &HandleInput, window, cx| {
275 if text.is_empty() {
276 return;
277 }
278 editor.handle_input(text, window, cx);
279 },
280 );
281 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
282 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
283 });
284 register_action(editor, window, |editor, _: &PageDown, window, cx| {
285 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
286 });
287 register_action(editor, window, |editor, _: &PageUp, window, cx| {
288 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
289 });
290 register_action(editor, window, Editor::move_to_previous_word_start);
291 register_action(editor, window, Editor::move_to_previous_subword_start);
292 register_action(editor, window, Editor::move_to_next_word_end);
293 register_action(editor, window, Editor::move_to_next_subword_end);
294 register_action(editor, window, Editor::move_to_beginning_of_line);
295 register_action(editor, window, Editor::move_to_end_of_line);
296 register_action(editor, window, Editor::move_to_start_of_paragraph);
297 register_action(editor, window, Editor::move_to_end_of_paragraph);
298 register_action(editor, window, Editor::move_to_beginning);
299 register_action(editor, window, Editor::move_to_end);
300 register_action(editor, window, Editor::move_to_start_of_excerpt);
301 register_action(editor, window, Editor::move_to_start_of_next_excerpt);
302 register_action(editor, window, Editor::move_to_end_of_excerpt);
303 register_action(editor, window, Editor::move_to_end_of_previous_excerpt);
304 register_action(editor, window, Editor::select_up);
305 register_action(editor, window, Editor::select_down);
306 register_action(editor, window, Editor::select_left);
307 register_action(editor, window, Editor::select_right);
308 register_action(editor, window, Editor::select_to_previous_word_start);
309 register_action(editor, window, Editor::select_to_previous_subword_start);
310 register_action(editor, window, Editor::select_to_next_word_end);
311 register_action(editor, window, Editor::select_to_next_subword_end);
312 register_action(editor, window, Editor::select_to_beginning_of_line);
313 register_action(editor, window, Editor::select_to_end_of_line);
314 register_action(editor, window, Editor::select_to_start_of_paragraph);
315 register_action(editor, window, Editor::select_to_end_of_paragraph);
316 register_action(editor, window, Editor::select_to_start_of_excerpt);
317 register_action(editor, window, Editor::select_to_start_of_next_excerpt);
318 register_action(editor, window, Editor::select_to_end_of_excerpt);
319 register_action(editor, window, Editor::select_to_end_of_previous_excerpt);
320 register_action(editor, window, Editor::select_to_beginning);
321 register_action(editor, window, Editor::select_to_end);
322 register_action(editor, window, Editor::select_all);
323 register_action(editor, window, |editor, action, window, cx| {
324 editor.select_all_matches(action, window, cx).log_err();
325 });
326 register_action(editor, window, Editor::select_line);
327 register_action(editor, window, Editor::split_selection_into_lines);
328 register_action(editor, window, Editor::add_selection_above);
329 register_action(editor, window, Editor::add_selection_below);
330 register_action(editor, window, |editor, action, window, cx| {
331 editor.select_next(action, window, cx).log_err();
332 });
333 register_action(editor, window, |editor, action, window, cx| {
334 editor.select_previous(action, window, cx).log_err();
335 });
336 register_action(editor, window, |editor, action, window, cx| {
337 editor.find_next_match(action, window, cx).log_err();
338 });
339 register_action(editor, window, |editor, action, window, cx| {
340 editor.find_previous_match(action, window, cx).log_err();
341 });
342 register_action(editor, window, Editor::toggle_comments);
343 register_action(editor, window, Editor::select_larger_syntax_node);
344 register_action(editor, window, Editor::select_smaller_syntax_node);
345 register_action(editor, window, Editor::select_enclosing_symbol);
346 register_action(editor, window, Editor::move_to_enclosing_bracket);
347 register_action(editor, window, Editor::undo_selection);
348 register_action(editor, window, Editor::redo_selection);
349 if !editor.read(cx).is_singleton(cx) {
350 register_action(editor, window, Editor::expand_excerpts);
351 register_action(editor, window, Editor::expand_excerpts_up);
352 register_action(editor, window, Editor::expand_excerpts_down);
353 }
354 register_action(editor, window, Editor::go_to_diagnostic);
355 register_action(editor, window, Editor::go_to_prev_diagnostic);
356 register_action(editor, window, Editor::go_to_next_hunk);
357 register_action(editor, window, Editor::go_to_prev_hunk);
358 register_action(editor, window, |editor, action, window, cx| {
359 editor
360 .go_to_definition(action, window, cx)
361 .detach_and_log_err(cx);
362 });
363 register_action(editor, window, |editor, action, window, cx| {
364 editor
365 .go_to_definition_split(action, window, cx)
366 .detach_and_log_err(cx);
367 });
368 register_action(editor, window, |editor, action, window, cx| {
369 editor
370 .go_to_declaration(action, window, cx)
371 .detach_and_log_err(cx);
372 });
373 register_action(editor, window, |editor, action, window, cx| {
374 editor
375 .go_to_declaration_split(action, window, cx)
376 .detach_and_log_err(cx);
377 });
378 register_action(editor, window, |editor, action, window, cx| {
379 editor
380 .go_to_implementation(action, window, cx)
381 .detach_and_log_err(cx);
382 });
383 register_action(editor, window, |editor, action, window, cx| {
384 editor
385 .go_to_implementation_split(action, window, cx)
386 .detach_and_log_err(cx);
387 });
388 register_action(editor, window, |editor, action, window, cx| {
389 editor
390 .go_to_type_definition(action, window, cx)
391 .detach_and_log_err(cx);
392 });
393 register_action(editor, window, |editor, action, window, cx| {
394 editor
395 .go_to_type_definition_split(action, window, cx)
396 .detach_and_log_err(cx);
397 });
398 register_action(editor, window, Editor::open_url);
399 register_action(editor, window, Editor::open_selected_filename);
400 register_action(editor, window, Editor::fold);
401 register_action(editor, window, Editor::fold_at_level);
402 register_action(editor, window, Editor::fold_all);
403 register_action(editor, window, Editor::fold_function_bodies);
404 register_action(editor, window, Editor::fold_recursive);
405 register_action(editor, window, Editor::toggle_fold);
406 register_action(editor, window, Editor::toggle_fold_recursive);
407 register_action(editor, window, Editor::unfold_lines);
408 register_action(editor, window, Editor::unfold_recursive);
409 register_action(editor, window, Editor::unfold_all);
410 register_action(editor, window, Editor::fold_selected_ranges);
411 register_action(editor, window, Editor::set_mark);
412 register_action(editor, window, Editor::swap_selection_ends);
413 register_action(editor, window, Editor::show_completions);
414 register_action(editor, window, Editor::show_word_completions);
415 register_action(editor, window, Editor::toggle_code_actions);
416 register_action(editor, window, Editor::open_excerpts);
417 register_action(editor, window, Editor::open_excerpts_in_split);
418 register_action(editor, window, Editor::open_proposed_changes_editor);
419 register_action(editor, window, Editor::toggle_soft_wrap);
420 register_action(editor, window, Editor::toggle_tab_bar);
421 register_action(editor, window, Editor::toggle_line_numbers);
422 register_action(editor, window, Editor::toggle_relative_line_numbers);
423 register_action(editor, window, Editor::toggle_indent_guides);
424 register_action(editor, window, Editor::toggle_inlay_hints);
425 register_action(editor, window, Editor::toggle_edit_predictions);
426 register_action(editor, window, Editor::toggle_inline_diagnostics);
427 register_action(editor, window, hover_popover::hover);
428 register_action(editor, window, Editor::reveal_in_finder);
429 register_action(editor, window, Editor::copy_path);
430 register_action(editor, window, Editor::copy_relative_path);
431 register_action(editor, window, Editor::copy_file_name);
432 register_action(editor, window, Editor::copy_file_name_without_extension);
433 register_action(editor, window, Editor::copy_highlight_json);
434 register_action(editor, window, Editor::copy_permalink_to_line);
435 register_action(editor, window, Editor::open_permalink_to_line);
436 register_action(editor, window, Editor::copy_file_location);
437 register_action(editor, window, Editor::toggle_git_blame);
438 register_action(editor, window, Editor::toggle_git_blame_inline);
439 register_action(editor, window, Editor::open_git_blame_commit);
440 register_action(editor, window, Editor::toggle_selected_diff_hunks);
441 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
442 register_action(editor, window, Editor::stage_and_next);
443 register_action(editor, window, Editor::unstage_and_next);
444 register_action(editor, window, Editor::expand_all_diff_hunks);
445 register_action(editor, window, Editor::go_to_previous_change);
446 register_action(editor, window, Editor::go_to_next_change);
447
448 register_action(editor, window, |editor, action, window, cx| {
449 if let Some(task) = editor.format(action, window, cx) {
450 task.detach_and_notify_err(window, cx);
451 } else {
452 cx.propagate();
453 }
454 });
455 register_action(editor, window, |editor, action, window, cx| {
456 if let Some(task) = editor.format_selections(action, window, cx) {
457 task.detach_and_notify_err(window, cx);
458 } else {
459 cx.propagate();
460 }
461 });
462 register_action(editor, window, |editor, action, window, cx| {
463 if let Some(task) = editor.organize_imports(action, window, cx) {
464 task.detach_and_notify_err(window, cx);
465 } else {
466 cx.propagate();
467 }
468 });
469 register_action(editor, window, Editor::restart_language_server);
470 register_action(editor, window, Editor::stop_language_server);
471 register_action(editor, window, Editor::show_character_palette);
472 register_action(editor, window, |editor, action, window, cx| {
473 if let Some(task) = editor.confirm_completion(action, window, cx) {
474 task.detach_and_notify_err(window, cx);
475 } else {
476 cx.propagate();
477 }
478 });
479 register_action(editor, window, |editor, action, window, cx| {
480 if let Some(task) = editor.confirm_completion_replace(action, window, cx) {
481 task.detach_and_notify_err(window, cx);
482 } else {
483 cx.propagate();
484 }
485 });
486 register_action(editor, window, |editor, action, window, cx| {
487 if let Some(task) = editor.confirm_completion_insert(action, window, cx) {
488 task.detach_and_notify_err(window, cx);
489 } else {
490 cx.propagate();
491 }
492 });
493 register_action(editor, window, |editor, action, window, cx| {
494 if let Some(task) = editor.compose_completion(action, window, cx) {
495 task.detach_and_notify_err(window, cx);
496 } else {
497 cx.propagate();
498 }
499 });
500 register_action(editor, window, |editor, action, window, cx| {
501 if let Some(task) = editor.confirm_code_action(action, window, cx) {
502 task.detach_and_notify_err(window, cx);
503 } else {
504 cx.propagate();
505 }
506 });
507 register_action(editor, window, |editor, action, window, cx| {
508 if let Some(task) = editor.rename(action, window, cx) {
509 task.detach_and_notify_err(window, cx);
510 } else {
511 cx.propagate();
512 }
513 });
514 register_action(editor, window, |editor, action, window, cx| {
515 if let Some(task) = editor.confirm_rename(action, window, cx) {
516 task.detach_and_notify_err(window, cx);
517 } else {
518 cx.propagate();
519 }
520 });
521 register_action(editor, window, |editor, action, window, cx| {
522 if let Some(task) = editor.find_all_references(action, window, cx) {
523 task.detach_and_log_err(cx);
524 } else {
525 cx.propagate();
526 }
527 });
528 register_action(editor, window, Editor::show_signature_help);
529 register_action(editor, window, Editor::next_edit_prediction);
530 register_action(editor, window, Editor::previous_edit_prediction);
531 register_action(editor, window, Editor::show_inline_completion);
532 register_action(editor, window, Editor::context_menu_first);
533 register_action(editor, window, Editor::context_menu_prev);
534 register_action(editor, window, Editor::context_menu_next);
535 register_action(editor, window, Editor::context_menu_last);
536 register_action(editor, window, Editor::display_cursor_names);
537 register_action(editor, window, Editor::unique_lines_case_insensitive);
538 register_action(editor, window, Editor::unique_lines_case_sensitive);
539 register_action(editor, window, Editor::accept_partial_inline_completion);
540 register_action(editor, window, Editor::accept_edit_prediction);
541 register_action(editor, window, Editor::restore_file);
542 register_action(editor, window, Editor::git_restore);
543 register_action(editor, window, Editor::apply_all_diff_hunks);
544 register_action(editor, window, Editor::apply_selected_diff_hunks);
545 register_action(editor, window, Editor::open_active_item_in_terminal);
546 register_action(editor, window, Editor::reload_file);
547 register_action(editor, window, Editor::spawn_nearest_task);
548 register_action(editor, window, Editor::insert_uuid_v4);
549 register_action(editor, window, Editor::insert_uuid_v7);
550 register_action(editor, window, Editor::open_selections_in_multibuffer);
551 if cx.has_flag::<DebuggerFeatureFlag>() {
552 register_action(editor, window, Editor::toggle_breakpoint);
553 register_action(editor, window, Editor::edit_log_breakpoint);
554 register_action(editor, window, Editor::enable_breakpoint);
555 register_action(editor, window, Editor::disable_breakpoint);
556 }
557 }
558
559 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
560 let position_map = layout.position_map.clone();
561 window.on_key_event({
562 let editor = self.editor.clone();
563 move |event: &ModifiersChangedEvent, phase, window, cx| {
564 if phase != DispatchPhase::Bubble {
565 return;
566 }
567 editor.update(cx, |editor, cx| {
568 let inlay_hint_settings = inlay_hint_settings(
569 editor.selections.newest_anchor().head(),
570 &editor.buffer.read(cx).snapshot(cx),
571 cx,
572 );
573
574 if let Some(inlay_modifiers) = inlay_hint_settings
575 .toggle_on_modifiers_press
576 .as_ref()
577 .filter(|modifiers| modifiers.modified())
578 {
579 editor.refresh_inlay_hints(
580 InlayHintRefreshReason::ModifiersChanged(
581 inlay_modifiers == &event.modifiers,
582 ),
583 cx,
584 );
585 }
586
587 if editor.hover_state.focused(window, cx) {
588 return;
589 }
590
591 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
592 })
593 }
594 });
595 }
596
597 fn mouse_left_down(
598 editor: &mut Editor,
599 event: &MouseDownEvent,
600 hovered_hunk: Option<Range<Anchor>>,
601 position_map: &PositionMap,
602 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
603 window: &mut Window,
604 cx: &mut Context<Editor>,
605 ) {
606 if window.default_prevented() {
607 return;
608 }
609
610 let text_hitbox = &position_map.text_hitbox;
611 let gutter_hitbox = &position_map.gutter_hitbox;
612 let mut click_count = event.click_count;
613 let mut modifiers = event.modifiers;
614
615 if let Some(hovered_hunk) = hovered_hunk {
616 editor.toggle_single_diff_hunk(hovered_hunk, cx);
617 cx.notify();
618 return;
619 } else if gutter_hitbox.is_hovered(window) {
620 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
621 } else if !text_hitbox.is_hovered(window) {
622 return;
623 }
624
625 let is_singleton = editor.buffer().read(cx).is_singleton();
626
627 if click_count == 2 && !is_singleton {
628 match EditorSettings::get_global(cx).double_click_in_multibuffer {
629 DoubleClickInMultibuffer::Select => {
630 // do nothing special on double click, all selection logic is below
631 }
632 DoubleClickInMultibuffer::Open => {
633 if modifiers.alt {
634 // if double click is made with alt, pretend it's a regular double click without opening and alt,
635 // and run the selection logic.
636 modifiers.alt = false;
637 } else {
638 let scroll_position_row =
639 position_map.scroll_pixel_position.y / position_map.line_height;
640 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
641 + position_map.scroll_pixel_position.y)
642 / position_map.line_height)
643 as u32;
644 let multi_buffer_row = position_map
645 .snapshot
646 .display_point_to_point(
647 DisplayPoint::new(DisplayRow(display_row), 0),
648 Bias::Right,
649 )
650 .row;
651 let line_offset_from_top = display_row - scroll_position_row as u32;
652 // if double click is made without alt, open the corresponding excerp
653 editor.open_excerpts_common(
654 Some(JumpData::MultiBufferRow {
655 row: MultiBufferRow(multi_buffer_row),
656 line_offset_from_top,
657 }),
658 false,
659 window,
660 cx,
661 );
662 return;
663 }
664 }
665 }
666 }
667
668 let point_for_position = position_map.point_for_position(event.position);
669 let position = point_for_position.previous_valid;
670 if modifiers == COLUMNAR_SELECTION_MODIFIERS {
671 editor.select(
672 SelectPhase::BeginColumnar {
673 position,
674 reset: false,
675 goal_column: point_for_position.exact_unclipped.column(),
676 },
677 window,
678 cx,
679 );
680 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
681 {
682 editor.select(
683 SelectPhase::Extend {
684 position,
685 click_count,
686 },
687 window,
688 cx,
689 );
690 } else {
691 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
692 let multi_cursor_modifier = match multi_cursor_setting {
693 MultiCursorModifier::Alt => modifiers.alt,
694 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
695 };
696 editor.select(
697 SelectPhase::Begin {
698 position,
699 add: multi_cursor_modifier,
700 click_count,
701 },
702 window,
703 cx,
704 );
705 }
706 cx.stop_propagation();
707
708 if !is_singleton {
709 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
710 + position_map.scroll_pixel_position.y)
711 / position_map.line_height) as u32;
712 let multi_buffer_row = position_map
713 .snapshot
714 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
715 .row;
716 if line_numbers
717 .get(&MultiBufferRow(multi_buffer_row))
718 .and_then(|line_number| line_number.hitbox.as_ref())
719 .is_some_and(|hitbox| hitbox.contains(&event.position))
720 {
721 let scroll_position_row =
722 position_map.scroll_pixel_position.y / position_map.line_height;
723 let line_offset_from_top = display_row - scroll_position_row as u32;
724
725 editor.open_excerpts_common(
726 Some(JumpData::MultiBufferRow {
727 row: MultiBufferRow(multi_buffer_row),
728 line_offset_from_top,
729 }),
730 modifiers.alt,
731 window,
732 cx,
733 );
734 cx.stop_propagation();
735 }
736 }
737 }
738
739 fn mouse_right_down(
740 editor: &mut Editor,
741 event: &MouseDownEvent,
742 position_map: &PositionMap,
743 window: &mut Window,
744 cx: &mut Context<Editor>,
745 ) {
746 if position_map.gutter_hitbox.is_hovered(window) {
747 let gutter_right_padding = editor.gutter_dimensions.right_padding;
748 let hitbox = &position_map.gutter_hitbox;
749
750 if event.position.x <= hitbox.bounds.right() - gutter_right_padding {
751 let point_for_position = position_map.point_for_position(event.position);
752 editor.set_breakpoint_context_menu(
753 point_for_position.previous_valid.row(),
754 None,
755 event.position,
756 window,
757 cx,
758 );
759 }
760 return;
761 }
762
763 if !position_map.text_hitbox.is_hovered(window) {
764 return;
765 }
766
767 let point_for_position = position_map.point_for_position(event.position);
768 mouse_context_menu::deploy_context_menu(
769 editor,
770 Some(event.position),
771 point_for_position.previous_valid,
772 window,
773 cx,
774 );
775 cx.stop_propagation();
776 }
777
778 fn mouse_middle_down(
779 editor: &mut Editor,
780 event: &MouseDownEvent,
781 position_map: &PositionMap,
782 window: &mut Window,
783 cx: &mut Context<Editor>,
784 ) {
785 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
786 return;
787 }
788
789 let point_for_position = position_map.point_for_position(event.position);
790 let position = point_for_position.previous_valid;
791
792 editor.select(
793 SelectPhase::BeginColumnar {
794 position,
795 reset: true,
796 goal_column: point_for_position.exact_unclipped.column(),
797 },
798 window,
799 cx,
800 );
801 }
802
803 fn mouse_up(
804 editor: &mut Editor,
805 event: &MouseUpEvent,
806 position_map: &PositionMap,
807 window: &mut Window,
808 cx: &mut Context<Editor>,
809 ) {
810 let text_hitbox = &position_map.text_hitbox;
811 let end_selection = editor.has_pending_selection();
812 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
813
814 if end_selection {
815 editor.select(SelectPhase::End, window, cx);
816 }
817
818 if end_selection && pending_nonempty_selections {
819 cx.stop_propagation();
820 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
821 && event.button == MouseButton::Middle
822 {
823 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
824 return;
825 }
826
827 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
828 if EditorSettings::get_global(cx).middle_click_paste {
829 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
830 let point_for_position = position_map.point_for_position(event.position);
831 let position = point_for_position.previous_valid;
832
833 editor.select(
834 SelectPhase::Begin {
835 position,
836 add: false,
837 click_count: 1,
838 },
839 window,
840 cx,
841 );
842 editor.insert(&text, window, cx);
843 }
844 cx.stop_propagation()
845 }
846 }
847 }
848
849 fn click(
850 editor: &mut Editor,
851 event: &ClickEvent,
852 position_map: &PositionMap,
853 window: &mut Window,
854 cx: &mut Context<Editor>,
855 ) {
856 let text_hitbox = &position_map.text_hitbox;
857 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
858
859 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
860 let multi_cursor_modifier = match multi_cursor_setting {
861 MultiCursorModifier::Alt => event.modifiers().secondary(),
862 MultiCursorModifier::CmdOrCtrl => event.modifiers().alt,
863 };
864
865 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(window) {
866 let point = position_map.point_for_position(event.up.position);
867 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
868
869 cx.stop_propagation();
870 }
871 }
872
873 fn mouse_dragged(
874 editor: &mut Editor,
875 event: &MouseMoveEvent,
876 position_map: &PositionMap,
877 window: &mut Window,
878 cx: &mut Context<Editor>,
879 ) {
880 if !editor.has_pending_selection() {
881 return;
882 }
883
884 let text_bounds = position_map.text_hitbox.bounds;
885 let point_for_position = position_map.point_for_position(event.position);
886 let mut scroll_delta = gpui::Point::<f32>::default();
887 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
888 let top = text_bounds.origin.y + vertical_margin;
889 let bottom = text_bounds.bottom_left().y - vertical_margin;
890 if event.position.y < top {
891 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
892 }
893 if event.position.y > bottom {
894 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
895 }
896
897 // We need horizontal width of text
898 let style = editor.style.clone().unwrap_or_default();
899 let font_id = window.text_system().resolve_font(&style.text.font());
900 let font_size = style.text.font_size.to_pixels(window.rem_size());
901 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
902
903 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
904
905 let scroll_space: Pixels = scroll_margin_x * em_width;
906
907 let left = text_bounds.origin.x + scroll_space;
908 let right = text_bounds.top_right().x - scroll_space;
909
910 if event.position.x < left {
911 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
912 }
913 if event.position.x > right {
914 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
915 }
916
917 editor.select(
918 SelectPhase::Update {
919 position: point_for_position.previous_valid,
920 goal_column: point_for_position.exact_unclipped.column(),
921 scroll_delta,
922 },
923 window,
924 cx,
925 );
926 }
927
928 fn mouse_moved(
929 editor: &mut Editor,
930 event: &MouseMoveEvent,
931 position_map: &PositionMap,
932 window: &mut Window,
933 cx: &mut Context<Editor>,
934 ) {
935 let text_hitbox = &position_map.text_hitbox;
936 let gutter_hitbox = &position_map.gutter_hitbox;
937 let modifiers = event.modifiers;
938 let gutter_hovered = gutter_hitbox.is_hovered(window);
939 editor.set_gutter_hovered(gutter_hovered, cx);
940 editor.mouse_cursor_hidden = false;
941
942 if gutter_hovered {
943 let new_point = position_map
944 .point_for_position(event.position)
945 .previous_valid;
946 let buffer_anchor = position_map
947 .snapshot
948 .display_point_to_anchor(new_point, Bias::Left);
949
950 if let Some((buffer_snapshot, file)) = position_map
951 .snapshot
952 .buffer_snapshot
953 .buffer_for_excerpt(buffer_anchor.excerpt_id)
954 .and_then(|buffer| buffer.file().map(|file| (buffer, file)))
955 {
956 let was_hovered = editor.gutter_breakpoint_indicator.0.is_some();
957 let as_point = text::ToPoint::to_point(&buffer_anchor.text_anchor, buffer_snapshot);
958
959 let is_visible = editor
960 .gutter_breakpoint_indicator
961 .0
962 .map_or(false, |indicator| indicator.is_active);
963
964 let has_existing_breakpoint =
965 editor.breakpoint_store.as_ref().map_or(false, |store| {
966 let Some(project) = &editor.project else {
967 return false;
968 };
969 let Some(abs_path) = project.read(cx).absolute_path(
970 &ProjectPath {
971 path: file.path().clone(),
972 worktree_id: file.worktree_id(cx),
973 },
974 cx,
975 ) else {
976 return false;
977 };
978 store
979 .read(cx)
980 .breakpoint_at_row(&abs_path, as_point.row, cx)
981 .is_some()
982 });
983
984 editor.gutter_breakpoint_indicator.0 = Some(PhantomBreakpointIndicator {
985 display_row: new_point.row(),
986 is_active: is_visible,
987 collides_with_existing_breakpoint: has_existing_breakpoint,
988 });
989
990 editor.gutter_breakpoint_indicator.1.get_or_insert_with(|| {
991 cx.spawn(async move |this, cx| {
992 if !was_hovered {
993 cx.background_executor()
994 .timer(Duration::from_millis(200))
995 .await;
996 }
997
998 this.update(cx, |this, cx| {
999 if let Some(indicator) = this.gutter_breakpoint_indicator.0.as_mut() {
1000 indicator.is_active = true;
1001 }
1002
1003 cx.notify();
1004 })
1005 .ok();
1006 })
1007 });
1008 } else {
1009 editor.gutter_breakpoint_indicator = (None, None);
1010 }
1011 } else {
1012 editor.gutter_breakpoint_indicator = (None, None);
1013 }
1014
1015 cx.notify();
1016
1017 // Don't trigger hover popover if mouse is hovering over context menu
1018 if text_hitbox.is_hovered(window) {
1019 let point_for_position = position_map.point_for_position(event.position);
1020
1021 editor.update_hovered_link(
1022 point_for_position,
1023 &position_map.snapshot,
1024 modifiers,
1025 window,
1026 cx,
1027 );
1028
1029 if let Some(point) = point_for_position.as_valid() {
1030 let anchor = position_map
1031 .snapshot
1032 .buffer_snapshot
1033 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
1034 hover_at(editor, Some(anchor), window, cx);
1035 Self::update_visible_cursor(editor, point, position_map, window, cx);
1036 } else {
1037 hover_at(editor, None, window, cx);
1038 }
1039 } else {
1040 editor.hide_hovered_link(cx);
1041 hover_at(editor, None, window, cx);
1042 }
1043 }
1044
1045 fn update_visible_cursor(
1046 editor: &mut Editor,
1047 point: DisplayPoint,
1048 position_map: &PositionMap,
1049 window: &mut Window,
1050 cx: &mut Context<Editor>,
1051 ) {
1052 let snapshot = &position_map.snapshot;
1053 let Some(hub) = editor.collaboration_hub() else {
1054 return;
1055 };
1056 let start = snapshot.display_snapshot.clip_point(
1057 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
1058 Bias::Left,
1059 );
1060 let end = snapshot.display_snapshot.clip_point(
1061 DisplayPoint::new(
1062 point.row(),
1063 (point.column() + 1).min(snapshot.line_len(point.row())),
1064 ),
1065 Bias::Right,
1066 );
1067
1068 let range = snapshot
1069 .buffer_snapshot
1070 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
1071 ..snapshot
1072 .buffer_snapshot
1073 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
1074
1075 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
1076 return;
1077 };
1078 let key = crate::HoveredCursor {
1079 replica_id: selection.replica_id,
1080 selection_id: selection.selection.id,
1081 };
1082 editor.hovered_cursors.insert(
1083 key.clone(),
1084 cx.spawn_in(window, async move |editor, cx| {
1085 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
1086 editor
1087 .update(cx, |editor, cx| {
1088 editor.hovered_cursors.remove(&key);
1089 cx.notify();
1090 })
1091 .ok();
1092 }),
1093 );
1094 cx.notify()
1095 }
1096
1097 fn layout_selections(
1098 &self,
1099 start_anchor: Anchor,
1100 end_anchor: Anchor,
1101 local_selections: &[Selection<Point>],
1102 snapshot: &EditorSnapshot,
1103 start_row: DisplayRow,
1104 end_row: DisplayRow,
1105 window: &mut Window,
1106 cx: &mut App,
1107 ) -> (
1108 Vec<(PlayerColor, Vec<SelectionLayout>)>,
1109 BTreeMap<DisplayRow, LineHighlightSpec>,
1110 Option<DisplayPoint>,
1111 ) {
1112 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1113 let mut active_rows = BTreeMap::new();
1114 let mut newest_selection_head = None;
1115 self.editor.update(cx, |editor, cx| {
1116 if editor.show_local_selections {
1117 let mut layouts = Vec::new();
1118 let newest = editor.selections.newest(cx);
1119 for selection in local_selections.iter().cloned() {
1120 let is_empty = selection.start == selection.end;
1121 let is_newest = selection == newest;
1122
1123 let layout = SelectionLayout::new(
1124 selection,
1125 editor.selections.line_mode,
1126 editor.cursor_shape,
1127 &snapshot.display_snapshot,
1128 is_newest,
1129 editor.leader_peer_id.is_none(),
1130 None,
1131 );
1132 if is_newest {
1133 newest_selection_head = Some(layout.head);
1134 }
1135
1136 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1137 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1138 {
1139 let contains_non_empty_selection = active_rows
1140 .entry(DisplayRow(row))
1141 .or_insert_with(LineHighlightSpec::default);
1142 contains_non_empty_selection.selection |= !is_empty;
1143 }
1144 layouts.push(layout);
1145 }
1146
1147 let player = editor.current_user_player_color(cx);
1148 selections.push((player, layouts));
1149 }
1150
1151 if let Some(collaboration_hub) = &editor.collaboration_hub {
1152 // When following someone, render the local selections in their color.
1153 if let Some(leader_id) = editor.leader_peer_id {
1154 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
1155 {
1156 if let Some(participant_index) = collaboration_hub
1157 .user_participant_indices(cx)
1158 .get(&collaborator.user_id)
1159 {
1160 if let Some((local_selection_style, _)) = selections.first_mut() {
1161 *local_selection_style = cx
1162 .theme()
1163 .players()
1164 .color_for_participant(participant_index.0);
1165 }
1166 }
1167 }
1168 }
1169
1170 let mut remote_selections = HashMap::default();
1171 for selection in snapshot.remote_selections_in_range(
1172 &(start_anchor..end_anchor),
1173 collaboration_hub.as_ref(),
1174 cx,
1175 ) {
1176 let selection_style =
1177 Self::get_participant_color(selection.participant_index, cx);
1178
1179 // Don't re-render the leader's selections, since the local selections
1180 // match theirs.
1181 if Some(selection.peer_id) == editor.leader_peer_id {
1182 continue;
1183 }
1184 let key = HoveredCursor {
1185 replica_id: selection.replica_id,
1186 selection_id: selection.selection.id,
1187 };
1188
1189 let is_shown =
1190 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1191
1192 remote_selections
1193 .entry(selection.replica_id)
1194 .or_insert((selection_style, Vec::new()))
1195 .1
1196 .push(SelectionLayout::new(
1197 selection.selection,
1198 selection.line_mode,
1199 selection.cursor_shape,
1200 &snapshot.display_snapshot,
1201 false,
1202 false,
1203 if is_shown { selection.user_name } else { None },
1204 ));
1205 }
1206
1207 selections.extend(remote_selections.into_values());
1208 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1209 let layouts = snapshot
1210 .buffer_snapshot
1211 .selections_in_range(&(start_anchor..end_anchor), true)
1212 .map(move |(_, line_mode, cursor_shape, selection)| {
1213 SelectionLayout::new(
1214 selection,
1215 line_mode,
1216 cursor_shape,
1217 &snapshot.display_snapshot,
1218 false,
1219 false,
1220 None,
1221 )
1222 })
1223 .collect::<Vec<_>>();
1224 let player = editor.current_user_player_color(cx);
1225 selections.push((player, layouts));
1226 }
1227 });
1228 (selections, active_rows, newest_selection_head)
1229 }
1230
1231 fn collect_cursors(
1232 &self,
1233 snapshot: &EditorSnapshot,
1234 cx: &mut App,
1235 ) -> Vec<(DisplayPoint, Hsla)> {
1236 let editor = self.editor.read(cx);
1237 let mut cursors = Vec::new();
1238 let mut skip_local = false;
1239 let mut add_cursor = |anchor: Anchor, color| {
1240 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1241 };
1242 // Remote cursors
1243 if let Some(collaboration_hub) = &editor.collaboration_hub {
1244 for remote_selection in snapshot.remote_selections_in_range(
1245 &(Anchor::min()..Anchor::max()),
1246 collaboration_hub.deref(),
1247 cx,
1248 ) {
1249 let color = Self::get_participant_color(remote_selection.participant_index, cx);
1250 add_cursor(remote_selection.selection.head(), color.cursor);
1251 if Some(remote_selection.peer_id) == editor.leader_peer_id {
1252 skip_local = true;
1253 }
1254 }
1255 }
1256 // Local cursors
1257 if !skip_local {
1258 let color = cx.theme().players().local().cursor;
1259 editor.selections.disjoint.iter().for_each(|selection| {
1260 add_cursor(selection.head(), color);
1261 });
1262 if let Some(ref selection) = editor.selections.pending_anchor() {
1263 add_cursor(selection.head(), color);
1264 }
1265 }
1266 cursors
1267 }
1268
1269 fn layout_visible_cursors(
1270 &self,
1271 snapshot: &EditorSnapshot,
1272 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1273 row_block_types: &HashMap<DisplayRow, bool>,
1274 visible_display_row_range: Range<DisplayRow>,
1275 line_layouts: &[LineWithInvisibles],
1276 text_hitbox: &Hitbox,
1277 content_origin: gpui::Point<Pixels>,
1278 scroll_position: gpui::Point<f32>,
1279 scroll_pixel_position: gpui::Point<Pixels>,
1280 line_height: Pixels,
1281 em_width: Pixels,
1282 em_advance: Pixels,
1283 autoscroll_containing_element: bool,
1284 window: &mut Window,
1285 cx: &mut App,
1286 ) -> Vec<CursorLayout> {
1287 let mut autoscroll_bounds = None;
1288 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1289 let mut cursors = Vec::new();
1290
1291 let show_local_cursors = editor.show_local_cursors(window, cx);
1292
1293 for (player_color, selections) in selections {
1294 for selection in selections {
1295 let cursor_position = selection.head;
1296
1297 let in_range = visible_display_row_range.contains(&cursor_position.row());
1298 if (selection.is_local && !show_local_cursors)
1299 || !in_range
1300 || row_block_types.get(&cursor_position.row()) == Some(&true)
1301 {
1302 continue;
1303 }
1304
1305 let cursor_row_layout = &line_layouts
1306 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1307 let cursor_column = cursor_position.column() as usize;
1308
1309 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1310 let mut block_width =
1311 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1312 if block_width == Pixels::ZERO {
1313 block_width = em_advance;
1314 }
1315 let block_text = if let CursorShape::Block = selection.cursor_shape {
1316 snapshot
1317 .grapheme_at(cursor_position)
1318 .or_else(|| {
1319 if cursor_column == 0 {
1320 snapshot.placeholder_text().and_then(|s| {
1321 s.graphemes(true).next().map(|s| s.to_string().into())
1322 })
1323 } else {
1324 None
1325 }
1326 })
1327 .and_then(|text| {
1328 let len = text.len();
1329
1330 let font = cursor_row_layout
1331 .font_id_for_index(cursor_column)
1332 .and_then(|cursor_font_id| {
1333 window.text_system().get_font_for_id(cursor_font_id)
1334 })
1335 .unwrap_or(self.style.text.font());
1336
1337 // Invert the text color for the block cursor. Ensure that the text
1338 // color is opaque enough to be visible against the background color.
1339 //
1340 // 0.75 is an arbitrary threshold to determine if the background color is
1341 // opaque enough to use as a text color.
1342 //
1343 // TODO: In the future we should ensure themes have a `text_inverse` color.
1344 let color = if cx.theme().colors().editor_background.a < 0.75 {
1345 match cx.theme().appearance {
1346 Appearance::Dark => Hsla::black(),
1347 Appearance::Light => Hsla::white(),
1348 }
1349 } else {
1350 cx.theme().colors().editor_background
1351 };
1352
1353 window
1354 .text_system()
1355 .shape_line(
1356 text,
1357 cursor_row_layout.font_size,
1358 &[TextRun {
1359 len,
1360 font,
1361 color,
1362 background_color: None,
1363 strikethrough: None,
1364 underline: None,
1365 }],
1366 )
1367 .log_err()
1368 })
1369 } else {
1370 None
1371 };
1372
1373 let x = cursor_character_x - scroll_pixel_position.x;
1374 let y = (cursor_position.row().as_f32()
1375 - scroll_pixel_position.y / line_height)
1376 * line_height;
1377 if selection.is_newest {
1378 editor.pixel_position_of_newest_cursor = Some(point(
1379 text_hitbox.origin.x + x + block_width / 2.,
1380 text_hitbox.origin.y + y + line_height / 2.,
1381 ));
1382
1383 if autoscroll_containing_element {
1384 let top = text_hitbox.origin.y
1385 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1386 * line_height;
1387 let left = text_hitbox.origin.x
1388 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1389 .max(0.)
1390 * em_width;
1391
1392 let bottom = text_hitbox.origin.y
1393 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1394 * line_height;
1395 let right = text_hitbox.origin.x
1396 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1397 * em_width;
1398
1399 autoscroll_bounds =
1400 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1401 }
1402 }
1403
1404 let mut cursor = CursorLayout {
1405 color: player_color.cursor,
1406 block_width,
1407 origin: point(x, y),
1408 line_height,
1409 shape: selection.cursor_shape,
1410 block_text,
1411 cursor_name: None,
1412 };
1413 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1414 string: name,
1415 color: self.style.background,
1416 is_top_row: cursor_position.row().0 == 0,
1417 });
1418 cursor.layout(content_origin, cursor_name, window, cx);
1419 cursors.push(cursor);
1420 }
1421 }
1422
1423 cursors
1424 });
1425
1426 if let Some(bounds) = autoscroll_bounds {
1427 window.request_autoscroll(bounds);
1428 }
1429
1430 cursor_layouts
1431 }
1432
1433 fn layout_scrollbars(
1434 &self,
1435 snapshot: &EditorSnapshot,
1436 scrollbar_layout_information: ScrollbarLayoutInformation,
1437 content_offset: gpui::Point<Pixels>,
1438 scroll_position: gpui::Point<f32>,
1439 non_visible_cursors: bool,
1440 window: &mut Window,
1441 cx: &mut App,
1442 ) -> Option<EditorScrollbars> {
1443 if !snapshot.mode.is_full() {
1444 return None;
1445 }
1446
1447 // If a drag took place after we started dragging the scrollbar,
1448 // cancel the scrollbar drag.
1449 if cx.has_active_drag() {
1450 self.editor.update(cx, |editor, cx| {
1451 editor.scroll_manager.reset_scrollbar_dragging_state(cx)
1452 });
1453 }
1454
1455 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1456 let show_scrollbars = self.editor.read(cx).show_scrollbars
1457 && match scrollbar_settings.show {
1458 ShowScrollbar::Auto => {
1459 let editor = self.editor.read(cx);
1460 let is_singleton = editor.is_singleton(cx);
1461 // Git
1462 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1463 ||
1464 // Buffer Search Results
1465 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1466 ||
1467 // Selected Text Occurrences
1468 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1469 ||
1470 // Selected Symbol Occurrences
1471 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1472 ||
1473 // Diagnostics
1474 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1475 ||
1476 // Cursors out of sight
1477 non_visible_cursors
1478 ||
1479 // Scrollmanager
1480 editor.scroll_manager.scrollbars_visible()
1481 }
1482 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1483 ShowScrollbar::Always => true,
1484 ShowScrollbar::Never => return None,
1485 };
1486
1487 Some(EditorScrollbars::from_scrollbar_axes(
1488 scrollbar_settings.axes,
1489 &scrollbar_layout_information,
1490 content_offset,
1491 scroll_position,
1492 self.style.scrollbar_width,
1493 show_scrollbars,
1494 window,
1495 ))
1496 }
1497
1498 fn prepaint_crease_toggles(
1499 &self,
1500 crease_toggles: &mut [Option<AnyElement>],
1501 line_height: Pixels,
1502 gutter_dimensions: &GutterDimensions,
1503 gutter_settings: crate::editor_settings::Gutter,
1504 scroll_pixel_position: gpui::Point<Pixels>,
1505 gutter_hitbox: &Hitbox,
1506 window: &mut Window,
1507 cx: &mut App,
1508 ) {
1509 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1510 if let Some(crease_toggle) = crease_toggle {
1511 debug_assert!(gutter_settings.folds);
1512 let available_space = size(
1513 AvailableSpace::MinContent,
1514 AvailableSpace::Definite(line_height * 0.55),
1515 );
1516 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1517
1518 let position = point(
1519 gutter_dimensions.width - gutter_dimensions.right_padding,
1520 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1521 );
1522 let centering_offset = point(
1523 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1524 (line_height - crease_toggle_size.height) / 2.,
1525 );
1526 let origin = gutter_hitbox.origin + position + centering_offset;
1527 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1528 }
1529 }
1530 }
1531
1532 fn prepaint_expand_toggles(
1533 &self,
1534 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
1535 window: &mut Window,
1536 cx: &mut App,
1537 ) {
1538 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
1539 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
1540 expand_toggle.layout_as_root(available_space, window, cx);
1541 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
1542 }
1543 }
1544
1545 fn prepaint_crease_trailers(
1546 &self,
1547 trailers: Vec<Option<AnyElement>>,
1548 lines: &[LineWithInvisibles],
1549 line_height: Pixels,
1550 content_origin: gpui::Point<Pixels>,
1551 scroll_pixel_position: gpui::Point<Pixels>,
1552 em_width: Pixels,
1553 window: &mut Window,
1554 cx: &mut App,
1555 ) -> Vec<Option<CreaseTrailerLayout>> {
1556 trailers
1557 .into_iter()
1558 .enumerate()
1559 .map(|(ix, element)| {
1560 let mut element = element?;
1561 let available_space = size(
1562 AvailableSpace::MinContent,
1563 AvailableSpace::Definite(line_height),
1564 );
1565 let size = element.layout_as_root(available_space, window, cx);
1566
1567 let line = &lines[ix];
1568 let padding = if line.width == Pixels::ZERO {
1569 Pixels::ZERO
1570 } else {
1571 4. * em_width
1572 };
1573 let position = point(
1574 scroll_pixel_position.x + line.width + padding,
1575 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1576 );
1577 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1578 let origin = content_origin + position + centering_offset;
1579 element.prepaint_as_root(origin, available_space, window, cx);
1580 Some(CreaseTrailerLayout {
1581 element,
1582 bounds: Bounds::new(origin, size),
1583 })
1584 })
1585 .collect()
1586 }
1587
1588 // Folds contained in a hunk are ignored apart from shrinking visual size
1589 // If a fold contains any hunks then that fold line is marked as modified
1590 fn layout_gutter_diff_hunks(
1591 &self,
1592 line_height: Pixels,
1593 gutter_hitbox: &Hitbox,
1594 display_rows: Range<DisplayRow>,
1595 snapshot: &EditorSnapshot,
1596 window: &mut Window,
1597 cx: &mut App,
1598 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1599 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1600 let mut display_hunks = snapshot
1601 .display_diff_hunks_for_rows(display_rows, folded_buffers)
1602 .map(|hunk| (hunk, None))
1603 .collect::<Vec<_>>();
1604 let git_gutter_setting = ProjectSettings::get_global(cx)
1605 .git
1606 .git_gutter
1607 .unwrap_or_default();
1608 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1609 for (hunk, hitbox) in &mut display_hunks {
1610 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1611 let hunk_bounds =
1612 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1613 *hitbox = Some(window.insert_hitbox(hunk_bounds, true));
1614 }
1615 }
1616 }
1617
1618 display_hunks
1619 }
1620
1621 fn layout_inline_diagnostics(
1622 &self,
1623 line_layouts: &[LineWithInvisibles],
1624 crease_trailers: &[Option<CreaseTrailerLayout>],
1625 row_block_types: &HashMap<DisplayRow, bool>,
1626 content_origin: gpui::Point<Pixels>,
1627 scroll_pixel_position: gpui::Point<Pixels>,
1628 inline_completion_popover_origin: Option<gpui::Point<Pixels>>,
1629 start_row: DisplayRow,
1630 end_row: DisplayRow,
1631 line_height: Pixels,
1632 em_width: Pixels,
1633 style: &EditorStyle,
1634 window: &mut Window,
1635 cx: &mut App,
1636 ) -> HashMap<DisplayRow, AnyElement> {
1637 let max_severity = ProjectSettings::get_global(cx)
1638 .diagnostics
1639 .inline
1640 .max_severity
1641 .map_or(DiagnosticSeverity::HINT, |severity| match severity {
1642 project_settings::DiagnosticSeverity::Error => DiagnosticSeverity::ERROR,
1643 project_settings::DiagnosticSeverity::Warning => DiagnosticSeverity::WARNING,
1644 project_settings::DiagnosticSeverity::Info => DiagnosticSeverity::INFORMATION,
1645 project_settings::DiagnosticSeverity::Hint => DiagnosticSeverity::HINT,
1646 });
1647
1648 let active_diagnostics_group =
1649 if let ActiveDiagnostic::Group(group) = &self.editor.read(cx).active_diagnostics {
1650 Some(group.group_id)
1651 } else {
1652 None
1653 };
1654
1655 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
1656 let snapshot = editor.snapshot(window, cx);
1657 editor
1658 .inline_diagnostics
1659 .iter()
1660 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
1661 .filter(|(_, diagnostic)| match active_diagnostics_group {
1662 Some(active_diagnostics_group) => {
1663 // Active diagnostics are all shown in the editor already, no need to display them inline
1664 diagnostic.group_id != active_diagnostics_group
1665 }
1666 None => true,
1667 })
1668 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
1669 .skip_while(|(point, _)| point.row() < start_row)
1670 .take_while(|(point, _)| point.row() < end_row)
1671 .filter(|(point, _)| !row_block_types.contains_key(&point.row()))
1672 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
1673 acc.entry(point.row())
1674 .or_insert_with(Vec::new)
1675 .push(diagnostic);
1676 acc
1677 })
1678 });
1679
1680 if diagnostics_by_rows.is_empty() {
1681 return HashMap::default();
1682 }
1683
1684 let severity_to_color = |sev: &DiagnosticSeverity| match sev {
1685 &DiagnosticSeverity::ERROR => Color::Error,
1686 &DiagnosticSeverity::WARNING => Color::Warning,
1687 &DiagnosticSeverity::INFORMATION => Color::Info,
1688 &DiagnosticSeverity::HINT => Color::Hint,
1689 _ => Color::Error,
1690 };
1691
1692 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
1693 let min_x = ProjectSettings::get_global(cx)
1694 .diagnostics
1695 .inline
1696 .min_column as f32
1697 * em_width;
1698
1699 let mut elements = HashMap::default();
1700 for (row, mut diagnostics) in diagnostics_by_rows {
1701 diagnostics.sort_by_key(|diagnostic| {
1702 (
1703 diagnostic.severity,
1704 std::cmp::Reverse(diagnostic.is_primary),
1705 diagnostic.start.row,
1706 diagnostic.start.column,
1707 )
1708 });
1709
1710 let Some(diagnostic_to_render) = diagnostics
1711 .iter()
1712 .find(|diagnostic| diagnostic.is_primary)
1713 .or_else(|| diagnostics.first())
1714 else {
1715 continue;
1716 };
1717
1718 let pos_y = content_origin.y
1719 + line_height * (row.0 as f32 - scroll_pixel_position.y / line_height);
1720
1721 let window_ix = row.0.saturating_sub(start_row.0) as usize;
1722 let pos_x = {
1723 let crease_trailer_layout = &crease_trailers[window_ix];
1724 let line_layout = &line_layouts[window_ix];
1725
1726 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
1727 crease_trailer.bounds.right()
1728 } else {
1729 content_origin.x - scroll_pixel_position.x + line_layout.width
1730 };
1731
1732 let padded_line = line_end + padding;
1733 let min_start = content_origin.x - scroll_pixel_position.x + min_x;
1734
1735 cmp::max(padded_line, min_start)
1736 };
1737
1738 let behind_inline_completion_popover = inline_completion_popover_origin
1739 .as_ref()
1740 .map_or(false, |inline_completion_popover_origin| {
1741 (pos_y..pos_y + line_height).contains(&inline_completion_popover_origin.y)
1742 });
1743 let opacity = if behind_inline_completion_popover {
1744 0.5
1745 } else {
1746 1.0
1747 };
1748
1749 let mut element = h_flex()
1750 .id(("diagnostic", row.0))
1751 .h(line_height)
1752 .w_full()
1753 .px_1()
1754 .rounded_xs()
1755 .opacity(opacity)
1756 .bg(severity_to_color(&diagnostic_to_render.severity)
1757 .color(cx)
1758 .opacity(0.05))
1759 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
1760 .text_sm()
1761 .font_family(style.text.font().family)
1762 .child(diagnostic_to_render.message.clone())
1763 .into_any();
1764
1765 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
1766
1767 elements.insert(row, element);
1768 }
1769
1770 elements
1771 }
1772
1773 fn layout_inline_blame(
1774 &self,
1775 display_row: DisplayRow,
1776 row_info: &RowInfo,
1777 line_layout: &LineWithInvisibles,
1778 crease_trailer: Option<&CreaseTrailerLayout>,
1779 em_width: Pixels,
1780 content_origin: gpui::Point<Pixels>,
1781 scroll_pixel_position: gpui::Point<Pixels>,
1782 line_height: Pixels,
1783 text_hitbox: &Hitbox,
1784 window: &mut Window,
1785 cx: &mut App,
1786 ) -> Option<AnyElement> {
1787 if !self
1788 .editor
1789 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
1790 {
1791 return None;
1792 }
1793
1794 let editor = self.editor.read(cx);
1795 let blame = editor.blame.clone()?;
1796 let padding = {
1797 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1798 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1799
1800 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1801
1802 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1803 match &inline_completion.completion {
1804 InlineCompletion::Edit {
1805 display_mode: EditDisplayMode::TabAccept,
1806 ..
1807 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1808 _ => {}
1809 }
1810 }
1811
1812 padding * em_width
1813 };
1814
1815 let blame_entry = blame
1816 .update(cx, |blame, cx| {
1817 blame.blame_for_rows(&[*row_info], cx).next()
1818 })
1819 .flatten()?;
1820
1821 let mut element = render_inline_blame_entry(blame_entry.clone(), &self.style, cx)?;
1822
1823 let start_y = content_origin.y
1824 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1825
1826 let start_x = {
1827 let line_end = if let Some(crease_trailer) = crease_trailer {
1828 crease_trailer.bounds.right()
1829 } else {
1830 content_origin.x - scroll_pixel_position.x + line_layout.width
1831 };
1832
1833 let padded_line_end = line_end + padding;
1834
1835 let min_column_in_pixels = ProjectSettings::get_global(cx)
1836 .git
1837 .inline_blame
1838 .and_then(|settings| settings.min_column)
1839 .map(|col| self.column_pixels(col as usize, window, cx))
1840 .unwrap_or(px(0.));
1841 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1842
1843 cmp::max(padded_line_end, min_start)
1844 };
1845
1846 let absolute_offset = point(start_x, start_y);
1847 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
1848 let bounds = Bounds::new(absolute_offset, size);
1849
1850 self.layout_blame_entry_popover(
1851 bounds,
1852 blame_entry,
1853 blame,
1854 line_height,
1855 text_hitbox,
1856 window,
1857 cx,
1858 );
1859
1860 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
1861
1862 Some(element)
1863 }
1864
1865 fn layout_blame_entry_popover(
1866 &self,
1867 parent_bounds: Bounds<Pixels>,
1868 blame_entry: BlameEntry,
1869 blame: Entity<GitBlame>,
1870 line_height: Pixels,
1871 text_hitbox: &Hitbox,
1872 window: &mut Window,
1873 cx: &mut App,
1874 ) {
1875 let mouse_position = window.mouse_position();
1876 let mouse_over_inline_blame = parent_bounds.contains(&mouse_position);
1877 let mouse_over_popover = self.editor.update(cx, |editor, _| {
1878 editor
1879 .inline_blame_popover
1880 .as_ref()
1881 .and_then(|state| state.popover_bounds)
1882 .map_or(false, |bounds| bounds.contains(&mouse_position))
1883 });
1884
1885 self.editor.update(cx, |editor, cx| {
1886 if mouse_over_inline_blame || mouse_over_popover {
1887 editor.show_blame_popover(&blame_entry, mouse_position, cx);
1888 } else {
1889 editor.hide_blame_popover(cx);
1890 }
1891 });
1892
1893 let should_draw = self.editor.update(cx, |editor, _| {
1894 editor
1895 .inline_blame_popover
1896 .as_ref()
1897 .map_or(false, |state| state.show_task.is_none())
1898 });
1899
1900 if should_draw {
1901 let maybe_element = self.editor.update(cx, |editor, cx| {
1902 editor
1903 .workspace()
1904 .map(|workspace| workspace.downgrade())
1905 .zip(
1906 editor
1907 .inline_blame_popover
1908 .as_ref()
1909 .map(|p| p.popover_state.clone()),
1910 )
1911 .and_then(|(workspace, popover_state)| {
1912 render_blame_entry_popover(
1913 blame_entry,
1914 popover_state.scroll_handle,
1915 popover_state.commit_message,
1916 popover_state.markdown,
1917 workspace,
1918 &blame,
1919 window,
1920 cx,
1921 )
1922 })
1923 });
1924
1925 if let Some(mut element) = maybe_element {
1926 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
1927 let origin = self.editor.update(cx, |editor, _| {
1928 let target_point = editor
1929 .inline_blame_popover
1930 .as_ref()
1931 .map_or(mouse_position, |state| state.position);
1932
1933 let overall_height = size.height + HOVER_POPOVER_GAP;
1934 let popover_origin = if target_point.y > overall_height {
1935 point(target_point.x, target_point.y - size.height)
1936 } else {
1937 point(
1938 target_point.x,
1939 target_point.y + line_height + HOVER_POPOVER_GAP,
1940 )
1941 };
1942
1943 let horizontal_offset = (text_hitbox.top_right().x
1944 - POPOVER_RIGHT_OFFSET
1945 - (popover_origin.x + size.width))
1946 .min(Pixels::ZERO);
1947
1948 point(popover_origin.x + horizontal_offset, popover_origin.y)
1949 });
1950
1951 let popover_bounds = Bounds::new(origin, size);
1952 self.editor.update(cx, |editor, _| {
1953 if let Some(state) = &mut editor.inline_blame_popover {
1954 state.popover_bounds = Some(popover_bounds);
1955 }
1956 });
1957
1958 window.defer_draw(element, origin, 2);
1959 }
1960 }
1961 }
1962
1963 fn layout_blame_entries(
1964 &self,
1965 buffer_rows: &[RowInfo],
1966 em_width: Pixels,
1967 scroll_position: gpui::Point<f32>,
1968 line_height: Pixels,
1969 gutter_hitbox: &Hitbox,
1970 max_width: Option<Pixels>,
1971 window: &mut Window,
1972 cx: &mut App,
1973 ) -> Option<Vec<AnyElement>> {
1974 if !self
1975 .editor
1976 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1977 {
1978 return None;
1979 }
1980
1981 let blame = self.editor.read(cx).blame.clone()?;
1982 let workspace = self.editor.read(cx).workspace()?;
1983 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1984 blame.blame_for_rows(buffer_rows, cx).collect()
1985 });
1986
1987 let width = if let Some(max_width) = max_width {
1988 AvailableSpace::Definite(max_width)
1989 } else {
1990 AvailableSpace::MaxContent
1991 };
1992 let scroll_top = scroll_position.y * line_height;
1993 let start_x = em_width;
1994
1995 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1996 let blame_renderer = cx.global::<GlobalBlameRenderer>().0.clone();
1997
1998 let shaped_lines = blamed_rows
1999 .into_iter()
2000 .enumerate()
2001 .flat_map(|(ix, blame_entry)| {
2002 let mut element = render_blame_entry(
2003 ix,
2004 &blame,
2005 blame_entry?,
2006 &self.style,
2007 &mut last_used_color,
2008 self.editor.clone(),
2009 workspace.clone(),
2010 blame_renderer.clone(),
2011 cx,
2012 )?;
2013
2014 let start_y = ix as f32 * line_height - (scroll_top % line_height);
2015 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
2016
2017 element.prepaint_as_root(
2018 absolute_offset,
2019 size(width, AvailableSpace::MinContent),
2020 window,
2021 cx,
2022 );
2023
2024 Some(element)
2025 })
2026 .collect();
2027
2028 Some(shaped_lines)
2029 }
2030
2031 fn layout_indent_guides(
2032 &self,
2033 content_origin: gpui::Point<Pixels>,
2034 text_origin: gpui::Point<Pixels>,
2035 visible_buffer_range: Range<MultiBufferRow>,
2036 scroll_pixel_position: gpui::Point<Pixels>,
2037 line_height: Pixels,
2038 snapshot: &DisplaySnapshot,
2039 window: &mut Window,
2040 cx: &mut App,
2041 ) -> Option<Vec<IndentGuideLayout>> {
2042 let indent_guides = self.editor.update(cx, |editor, cx| {
2043 editor.indent_guides(visible_buffer_range, snapshot, cx)
2044 })?;
2045
2046 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
2047 editor
2048 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
2049 .unwrap_or_default()
2050 });
2051
2052 Some(
2053 indent_guides
2054 .into_iter()
2055 .enumerate()
2056 .filter_map(|(i, indent_guide)| {
2057 let single_indent_width =
2058 self.column_pixels(indent_guide.tab_size as usize, window, cx);
2059 let total_width = single_indent_width * indent_guide.depth as f32;
2060 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
2061 if start_x >= text_origin.x {
2062 let (offset_y, length) = Self::calculate_indent_guide_bounds(
2063 indent_guide.start_row..indent_guide.end_row,
2064 line_height,
2065 snapshot,
2066 );
2067
2068 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
2069
2070 Some(IndentGuideLayout {
2071 origin: point(start_x, start_y),
2072 length,
2073 single_indent_width,
2074 depth: indent_guide.depth,
2075 active: active_indent_guide_indices.contains(&i),
2076 settings: indent_guide.settings,
2077 })
2078 } else {
2079 None
2080 }
2081 })
2082 .collect(),
2083 )
2084 }
2085
2086 fn calculate_indent_guide_bounds(
2087 row_range: Range<MultiBufferRow>,
2088 line_height: Pixels,
2089 snapshot: &DisplaySnapshot,
2090 ) -> (gpui::Pixels, gpui::Pixels) {
2091 let start_point = Point::new(row_range.start.0, 0);
2092 let end_point = Point::new(row_range.end.0, 0);
2093
2094 let row_range = start_point.to_display_point(snapshot).row()
2095 ..end_point.to_display_point(snapshot).row();
2096
2097 let mut prev_line = start_point;
2098 prev_line.row = prev_line.row.saturating_sub(1);
2099 let prev_line = prev_line.to_display_point(snapshot).row();
2100
2101 let mut cons_line = end_point;
2102 cons_line.row += 1;
2103 let cons_line = cons_line.to_display_point(snapshot).row();
2104
2105 let mut offset_y = row_range.start.0 as f32 * line_height;
2106 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
2107
2108 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
2109 if row_range.end == cons_line {
2110 length += line_height;
2111 }
2112
2113 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
2114 // we want to extend the indent guide to the start of the block.
2115 let mut block_height = 0;
2116 let mut block_offset = 0;
2117 let mut found_excerpt_header = false;
2118 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
2119 if matches!(block, Block::ExcerptBoundary { .. }) {
2120 found_excerpt_header = true;
2121 break;
2122 }
2123 block_offset += block.height();
2124 block_height += block.height();
2125 }
2126 if !found_excerpt_header {
2127 offset_y -= block_offset as f32 * line_height;
2128 length += block_height as f32 * line_height;
2129 }
2130
2131 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
2132 // we want to ensure that the indent guide stops before the excerpt header.
2133 let mut block_height = 0;
2134 let mut found_excerpt_header = false;
2135 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
2136 if matches!(block, Block::ExcerptBoundary { .. }) {
2137 found_excerpt_header = true;
2138 }
2139 block_height += block.height();
2140 }
2141 if found_excerpt_header {
2142 length -= block_height as f32 * line_height;
2143 }
2144
2145 (offset_y, length)
2146 }
2147
2148 fn layout_breakpoints(
2149 &self,
2150 line_height: Pixels,
2151 range: Range<DisplayRow>,
2152 scroll_pixel_position: gpui::Point<Pixels>,
2153 gutter_dimensions: &GutterDimensions,
2154 gutter_hitbox: &Hitbox,
2155 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2156 snapshot: &EditorSnapshot,
2157 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint)>,
2158 row_infos: &[RowInfo],
2159 window: &mut Window,
2160 cx: &mut App,
2161 ) -> Vec<AnyElement> {
2162 self.editor.update(cx, |editor, cx| {
2163 breakpoints
2164 .into_iter()
2165 .filter_map(|(display_row, (text_anchor, bp))| {
2166 if row_infos
2167 .get((display_row.0.saturating_sub(range.start.0)) as usize)
2168 .is_some_and(|row_info| {
2169 row_info.expand_info.is_some()
2170 || row_info
2171 .diff_status
2172 .is_some_and(|status| status.is_deleted())
2173 })
2174 {
2175 return None;
2176 }
2177
2178 if range.start > display_row || range.end < display_row {
2179 return None;
2180 }
2181
2182 let row =
2183 MultiBufferRow(DisplayPoint::new(display_row, 0).to_point(&snapshot).row);
2184 if snapshot.is_line_folded(row) {
2185 return None;
2186 }
2187
2188 let button = editor.render_breakpoint(text_anchor, display_row, &bp, cx);
2189
2190 let button = prepaint_gutter_button(
2191 button,
2192 display_row,
2193 line_height,
2194 gutter_dimensions,
2195 scroll_pixel_position,
2196 gutter_hitbox,
2197 display_hunks,
2198 window,
2199 cx,
2200 );
2201 Some(button)
2202 })
2203 .collect_vec()
2204 })
2205 }
2206
2207 #[allow(clippy::too_many_arguments)]
2208 fn layout_run_indicators(
2209 &self,
2210 line_height: Pixels,
2211 range: Range<DisplayRow>,
2212 row_infos: &[RowInfo],
2213 scroll_pixel_position: gpui::Point<Pixels>,
2214 gutter_dimensions: &GutterDimensions,
2215 gutter_hitbox: &Hitbox,
2216 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2217 snapshot: &EditorSnapshot,
2218 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint)>,
2219 window: &mut Window,
2220 cx: &mut App,
2221 ) -> Vec<AnyElement> {
2222 self.editor.update(cx, |editor, cx| {
2223 let active_task_indicator_row =
2224 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2225 deployed_from_indicator,
2226 actions,
2227 ..
2228 })) = editor.context_menu.borrow().as_ref()
2229 {
2230 actions
2231 .tasks()
2232 .map(|tasks| tasks.position.to_display_point(snapshot).row())
2233 .or(*deployed_from_indicator)
2234 } else {
2235 None
2236 };
2237
2238 let offset_range_start =
2239 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
2240
2241 let offset_range_end =
2242 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
2243
2244 editor
2245 .tasks
2246 .iter()
2247 .filter_map(|(_, tasks)| {
2248 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot);
2249 if multibuffer_point < offset_range_start
2250 || multibuffer_point > offset_range_end
2251 {
2252 return None;
2253 }
2254 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
2255 let buffer_folded = snapshot
2256 .buffer_snapshot
2257 .buffer_line_for_row(multibuffer_row)
2258 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
2259 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
2260 .unwrap_or(false);
2261 if buffer_folded {
2262 return None;
2263 }
2264
2265 if snapshot.is_line_folded(multibuffer_row) {
2266 // Skip folded indicators, unless it's the starting line of a fold.
2267 if multibuffer_row
2268 .0
2269 .checked_sub(1)
2270 .map_or(false, |previous_row| {
2271 snapshot.is_line_folded(MultiBufferRow(previous_row))
2272 })
2273 {
2274 return None;
2275 }
2276 }
2277
2278 let display_row = multibuffer_point.to_display_point(snapshot).row();
2279 if !range.contains(&display_row) {
2280 return None;
2281 }
2282 if row_infos
2283 .get((display_row - range.start).0 as usize)
2284 .is_some_and(|row_info| row_info.expand_info.is_some())
2285 {
2286 return None;
2287 }
2288
2289 let button = editor.render_run_indicator(
2290 &self.style,
2291 Some(display_row) == active_task_indicator_row,
2292 display_row,
2293 breakpoints.remove(&display_row),
2294 cx,
2295 );
2296
2297 let button = prepaint_gutter_button(
2298 button,
2299 display_row,
2300 line_height,
2301 gutter_dimensions,
2302 scroll_pixel_position,
2303 gutter_hitbox,
2304 display_hunks,
2305 window,
2306 cx,
2307 );
2308 Some(button)
2309 })
2310 .collect_vec()
2311 })
2312 }
2313
2314 fn layout_expand_toggles(
2315 &self,
2316 gutter_hitbox: &Hitbox,
2317 gutter_dimensions: GutterDimensions,
2318 em_width: Pixels,
2319 line_height: Pixels,
2320 scroll_position: gpui::Point<f32>,
2321 buffer_rows: &[RowInfo],
2322 window: &mut Window,
2323 cx: &mut App,
2324 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
2325 if self.editor.read(cx).disable_expand_excerpt_buttons {
2326 return vec![];
2327 }
2328
2329 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
2330
2331 let scroll_top = scroll_position.y * line_height;
2332
2333 let max_line_number_length = self
2334 .editor
2335 .read(cx)
2336 .buffer()
2337 .read(cx)
2338 .snapshot(cx)
2339 .widest_line_number()
2340 .ilog10()
2341 + 1;
2342
2343 let elements = buffer_rows
2344 .into_iter()
2345 .enumerate()
2346 .map(|(ix, row_info)| {
2347 let ExpandInfo {
2348 excerpt_id,
2349 direction,
2350 } = row_info.expand_info?;
2351
2352 let icon_name = match direction {
2353 ExpandExcerptDirection::Up => IconName::ExpandUp,
2354 ExpandExcerptDirection::Down => IconName::ExpandDown,
2355 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
2356 };
2357
2358 let git_gutter_width = Self::gutter_strip_width(line_height);
2359 let available_width = gutter_dimensions.left_padding - git_gutter_width;
2360
2361 let editor = self.editor.clone();
2362 let is_wide = max_line_number_length >= MIN_LINE_NUMBER_DIGITS
2363 && row_info
2364 .buffer_row
2365 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
2366 || gutter_dimensions.right_padding == px(0.);
2367
2368 let width = if is_wide {
2369 available_width - px(2.)
2370 } else {
2371 available_width + em_width - px(2.)
2372 };
2373
2374 let toggle = IconButton::new(("expand", ix), icon_name)
2375 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
2376 .selected_icon_color(Color::Custom(cx.theme().colors().editor_foreground))
2377 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
2378 .width(width.into())
2379 .on_click(move |_, window, cx| {
2380 editor.update(cx, |editor, cx| {
2381 editor.expand_excerpt(excerpt_id, direction, window, cx);
2382 });
2383 })
2384 .tooltip(Tooltip::for_action_title(
2385 "Expand Excerpt",
2386 &crate::actions::ExpandExcerpts::default(),
2387 ))
2388 .into_any_element();
2389
2390 let position = point(
2391 git_gutter_width + px(1.),
2392 ix as f32 * line_height - (scroll_top % line_height) + px(1.),
2393 );
2394 let origin = gutter_hitbox.origin + position;
2395
2396 Some((toggle, origin))
2397 })
2398 .collect();
2399
2400 elements
2401 }
2402
2403 fn layout_code_actions_indicator(
2404 &self,
2405 line_height: Pixels,
2406 newest_selection_head: DisplayPoint,
2407 scroll_pixel_position: gpui::Point<Pixels>,
2408 gutter_dimensions: &GutterDimensions,
2409 gutter_hitbox: &Hitbox,
2410 breakpoint_points: &mut HashMap<DisplayRow, (Anchor, Breakpoint)>,
2411 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2412 window: &mut Window,
2413 cx: &mut App,
2414 ) -> Option<AnyElement> {
2415 let mut active = false;
2416 let mut button = None;
2417 let row = newest_selection_head.row();
2418 self.editor.update(cx, |editor, cx| {
2419 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2420 deployed_from_indicator,
2421 ..
2422 })) = editor.context_menu.borrow().as_ref()
2423 {
2424 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
2425 };
2426
2427 let breakpoint = breakpoint_points.get(&row);
2428 button = editor.render_code_actions_indicator(&self.style, row, active, breakpoint, cx);
2429 });
2430
2431 let button = button?;
2432 breakpoint_points.remove(&row);
2433
2434 let button = prepaint_gutter_button(
2435 button,
2436 row,
2437 line_height,
2438 gutter_dimensions,
2439 scroll_pixel_position,
2440 gutter_hitbox,
2441 display_hunks,
2442 window,
2443 cx,
2444 );
2445
2446 Some(button)
2447 }
2448
2449 fn get_participant_color(participant_index: Option<ParticipantIndex>, cx: &App) -> PlayerColor {
2450 if let Some(index) = participant_index {
2451 cx.theme().players().color_for_participant(index.0)
2452 } else {
2453 cx.theme().players().absent()
2454 }
2455 }
2456
2457 fn calculate_relative_line_numbers(
2458 &self,
2459 snapshot: &EditorSnapshot,
2460 rows: &Range<DisplayRow>,
2461 relative_to: Option<DisplayRow>,
2462 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2463 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2464 let Some(relative_to) = relative_to else {
2465 return relative_rows;
2466 };
2467
2468 let start = rows.start.min(relative_to);
2469 let end = rows.end.max(relative_to);
2470
2471 let buffer_rows = snapshot
2472 .row_infos(start)
2473 .take(1 + end.minus(start) as usize)
2474 .collect::<Vec<_>>();
2475
2476 let head_idx = relative_to.minus(start);
2477 let mut delta = 1;
2478 let mut i = head_idx + 1;
2479 while i < buffer_rows.len() as u32 {
2480 if buffer_rows[i as usize].buffer_row.is_some() {
2481 if rows.contains(&DisplayRow(i + start.0)) {
2482 relative_rows.insert(DisplayRow(i + start.0), delta);
2483 }
2484 delta += 1;
2485 }
2486 i += 1;
2487 }
2488 delta = 1;
2489 i = head_idx.min(buffer_rows.len() as u32 - 1);
2490 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2491 i -= 1;
2492 }
2493
2494 while i > 0 {
2495 i -= 1;
2496 if buffer_rows[i as usize].buffer_row.is_some() {
2497 if rows.contains(&DisplayRow(i + start.0)) {
2498 relative_rows.insert(DisplayRow(i + start.0), delta);
2499 }
2500 delta += 1;
2501 }
2502 }
2503
2504 relative_rows
2505 }
2506
2507 fn layout_line_numbers(
2508 &self,
2509 gutter_hitbox: Option<&Hitbox>,
2510 gutter_dimensions: GutterDimensions,
2511 line_height: Pixels,
2512 scroll_position: gpui::Point<f32>,
2513 rows: Range<DisplayRow>,
2514 buffer_rows: &[RowInfo],
2515 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
2516 newest_selection_head: Option<DisplayPoint>,
2517 snapshot: &EditorSnapshot,
2518 window: &mut Window,
2519 cx: &mut App,
2520 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2521 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2522 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode.is_full()
2523 });
2524 if !include_line_numbers {
2525 return Arc::default();
2526 }
2527
2528 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2529 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2530 let newest = editor.selections.newest::<Point>(cx);
2531 SelectionLayout::new(
2532 newest,
2533 editor.selections.line_mode,
2534 editor.cursor_shape,
2535 &snapshot.display_snapshot,
2536 true,
2537 true,
2538 None,
2539 )
2540 .head
2541 });
2542 let is_relative = editor.should_use_relative_line_numbers(cx);
2543 (newest_selection_head, is_relative)
2544 });
2545
2546 let relative_to = if is_relative {
2547 Some(newest_selection_head.row())
2548 } else {
2549 None
2550 };
2551 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2552 let mut line_number = String::new();
2553 let line_numbers = buffer_rows
2554 .into_iter()
2555 .enumerate()
2556 .flat_map(|(ix, row_info)| {
2557 let display_row = DisplayRow(rows.start.0 + ix as u32);
2558 line_number.clear();
2559 let non_relative_number = row_info.buffer_row? + 1;
2560 let number = relative_rows
2561 .get(&display_row)
2562 .unwrap_or(&non_relative_number);
2563 write!(&mut line_number, "{number}").unwrap();
2564 if row_info
2565 .diff_status
2566 .is_some_and(|status| status.is_deleted())
2567 {
2568 return None;
2569 }
2570
2571 let color = active_rows
2572 .get(&display_row)
2573 .map(|spec| {
2574 if spec.breakpoint {
2575 cx.theme().colors().debugger_accent
2576 } else {
2577 cx.theme().colors().editor_active_line_number
2578 }
2579 })
2580 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
2581 let shaped_line = self
2582 .shape_line_number(SharedString::from(&line_number), color, window)
2583 .log_err()?;
2584 let scroll_top = scroll_position.y * line_height;
2585 let line_origin = gutter_hitbox.map(|hitbox| {
2586 hitbox.origin
2587 + point(
2588 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2589 ix as f32 * line_height - (scroll_top % line_height),
2590 )
2591 });
2592
2593 #[cfg(not(test))]
2594 let hitbox = line_origin.map(|line_origin| {
2595 window.insert_hitbox(
2596 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2597 false,
2598 )
2599 });
2600 #[cfg(test)]
2601 let hitbox = {
2602 let _ = line_origin;
2603 None
2604 };
2605
2606 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2607 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2608 let line_number = LineNumberLayout {
2609 shaped_line,
2610 hitbox,
2611 };
2612 Some((multi_buffer_row, line_number))
2613 })
2614 .collect();
2615 Arc::new(line_numbers)
2616 }
2617
2618 fn layout_crease_toggles(
2619 &self,
2620 rows: Range<DisplayRow>,
2621 row_infos: &[RowInfo],
2622 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
2623 snapshot: &EditorSnapshot,
2624 window: &mut Window,
2625 cx: &mut App,
2626 ) -> Vec<Option<AnyElement>> {
2627 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2628 && snapshot.mode.is_full()
2629 && self.editor.read(cx).is_singleton(cx);
2630 if include_fold_statuses {
2631 row_infos
2632 .into_iter()
2633 .enumerate()
2634 .map(|(ix, info)| {
2635 if info.expand_info.is_some() {
2636 return None;
2637 }
2638 let row = info.multibuffer_row?;
2639 let display_row = DisplayRow(rows.start.0 + ix as u32);
2640 let active = active_rows.contains_key(&display_row);
2641
2642 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
2643 })
2644 .collect()
2645 } else {
2646 Vec::new()
2647 }
2648 }
2649
2650 fn layout_crease_trailers(
2651 &self,
2652 buffer_rows: impl IntoIterator<Item = RowInfo>,
2653 snapshot: &EditorSnapshot,
2654 window: &mut Window,
2655 cx: &mut App,
2656 ) -> Vec<Option<AnyElement>> {
2657 buffer_rows
2658 .into_iter()
2659 .map(|row_info| {
2660 if row_info.expand_info.is_some() {
2661 return None;
2662 }
2663 if let Some(row) = row_info.multibuffer_row {
2664 snapshot.render_crease_trailer(row, window, cx)
2665 } else {
2666 None
2667 }
2668 })
2669 .collect()
2670 }
2671
2672 fn layout_lines(
2673 rows: Range<DisplayRow>,
2674 snapshot: &EditorSnapshot,
2675 style: &EditorStyle,
2676 editor_width: Pixels,
2677 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2678 window: &mut Window,
2679 cx: &mut App,
2680 ) -> Vec<LineWithInvisibles> {
2681 if rows.start >= rows.end {
2682 return Vec::new();
2683 }
2684
2685 // Show the placeholder when the editor is empty
2686 if snapshot.is_empty() {
2687 let font_size = style.text.font_size.to_pixels(window.rem_size());
2688 let placeholder_color = cx.theme().colors().text_placeholder;
2689 let placeholder_text = snapshot.placeholder_text();
2690
2691 let placeholder_lines = placeholder_text
2692 .as_ref()
2693 .map_or("", AsRef::as_ref)
2694 .split('\n')
2695 .skip(rows.start.0 as usize)
2696 .chain(iter::repeat(""))
2697 .take(rows.len());
2698 placeholder_lines
2699 .filter_map(move |line| {
2700 let run = TextRun {
2701 len: line.len(),
2702 font: style.text.font(),
2703 color: placeholder_color,
2704 background_color: None,
2705 underline: Default::default(),
2706 strikethrough: None,
2707 };
2708 window
2709 .text_system()
2710 .shape_line(line.to_string().into(), font_size, &[run])
2711 .log_err()
2712 })
2713 .map(|line| LineWithInvisibles {
2714 width: line.width,
2715 len: line.len,
2716 fragments: smallvec![LineFragment::Text(line)],
2717 invisibles: Vec::new(),
2718 font_size,
2719 })
2720 .collect()
2721 } else {
2722 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2723 LineWithInvisibles::from_chunks(
2724 chunks,
2725 &style,
2726 MAX_LINE_LEN,
2727 rows.len(),
2728 snapshot.mode,
2729 editor_width,
2730 is_row_soft_wrapped,
2731 window,
2732 cx,
2733 )
2734 }
2735 }
2736
2737 fn prepaint_lines(
2738 &self,
2739 start_row: DisplayRow,
2740 line_layouts: &mut [LineWithInvisibles],
2741 line_height: Pixels,
2742 scroll_pixel_position: gpui::Point<Pixels>,
2743 content_origin: gpui::Point<Pixels>,
2744 window: &mut Window,
2745 cx: &mut App,
2746 ) -> SmallVec<[AnyElement; 1]> {
2747 let mut line_elements = SmallVec::new();
2748 for (ix, line) in line_layouts.iter_mut().enumerate() {
2749 let row = start_row + DisplayRow(ix as u32);
2750 line.prepaint(
2751 line_height,
2752 scroll_pixel_position,
2753 row,
2754 content_origin,
2755 &mut line_elements,
2756 window,
2757 cx,
2758 );
2759 }
2760 line_elements
2761 }
2762
2763 fn render_block(
2764 &self,
2765 block: &Block,
2766 available_width: AvailableSpace,
2767 block_id: BlockId,
2768 block_row_start: DisplayRow,
2769 snapshot: &EditorSnapshot,
2770 text_x: Pixels,
2771 rows: &Range<DisplayRow>,
2772 line_layouts: &[LineWithInvisibles],
2773 gutter_dimensions: &GutterDimensions,
2774 line_height: Pixels,
2775 em_width: Pixels,
2776 text_hitbox: &Hitbox,
2777 editor_width: Pixels,
2778 scroll_width: &mut Pixels,
2779 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2780 row_block_types: &mut HashMap<DisplayRow, bool>,
2781 selections: &[Selection<Point>],
2782 selected_buffer_ids: &Vec<BufferId>,
2783 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2784 sticky_header_excerpt_id: Option<ExcerptId>,
2785 window: &mut Window,
2786 cx: &mut App,
2787 ) -> Option<(AnyElement, Size<Pixels>, DisplayRow, Pixels)> {
2788 let mut x_position = None;
2789 let mut element = match block {
2790 Block::Custom(custom) => {
2791 let block_start = custom.start().to_point(&snapshot.buffer_snapshot);
2792 let block_end = custom.end().to_point(&snapshot.buffer_snapshot);
2793 if block.place_near() && snapshot.is_line_folded(MultiBufferRow(block_start.row)) {
2794 return None;
2795 }
2796 let align_to = block_start.to_display_point(snapshot);
2797 let x_and_width = |layout: &LineWithInvisibles| {
2798 Some((
2799 text_x + layout.x_for_index(align_to.column() as usize),
2800 text_x + layout.width,
2801 ))
2802 };
2803 let line_ix = align_to.row().0.checked_sub(rows.start.0);
2804 x_position =
2805 if let Some(layout) = line_ix.and_then(|ix| line_layouts.get(ix as usize)) {
2806 x_and_width(&layout)
2807 } else {
2808 x_and_width(&layout_line(
2809 align_to.row(),
2810 snapshot,
2811 &self.style,
2812 editor_width,
2813 is_row_soft_wrapped,
2814 window,
2815 cx,
2816 ))
2817 };
2818
2819 let anchor_x = x_position.unwrap().0;
2820
2821 let selected = selections
2822 .binary_search_by(|selection| {
2823 if selection.end <= block_start {
2824 Ordering::Less
2825 } else if selection.start >= block_end {
2826 Ordering::Greater
2827 } else {
2828 Ordering::Equal
2829 }
2830 })
2831 .is_ok();
2832
2833 div()
2834 .size_full()
2835 .child(custom.render(&mut BlockContext {
2836 window,
2837 app: cx,
2838 anchor_x,
2839 gutter_dimensions,
2840 line_height,
2841 em_width,
2842 block_id,
2843 selected,
2844 max_width: text_hitbox.size.width.max(*scroll_width),
2845 editor_style: &self.style,
2846 }))
2847 .into_any()
2848 }
2849
2850 Block::FoldedBuffer {
2851 first_excerpt,
2852 height,
2853 ..
2854 } => {
2855 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2856 let result = v_flex().id(block_id).w_full();
2857
2858 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2859 result
2860 .child(self.render_buffer_header(
2861 first_excerpt,
2862 true,
2863 selected,
2864 false,
2865 jump_data,
2866 window,
2867 cx,
2868 ))
2869 .into_any_element()
2870 }
2871
2872 Block::ExcerptBoundary {
2873 excerpt,
2874 height,
2875 starts_new_buffer,
2876 ..
2877 } => {
2878 let color = cx.theme().colors().clone();
2879 let mut result = v_flex().id(block_id).w_full();
2880
2881 let jump_data = header_jump_data(snapshot, block_row_start, *height, excerpt);
2882
2883 if *starts_new_buffer {
2884 if sticky_header_excerpt_id != Some(excerpt.id) {
2885 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
2886
2887 result = result.child(self.render_buffer_header(
2888 excerpt, false, selected, false, jump_data, window, cx,
2889 ));
2890 } else {
2891 result =
2892 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
2893 }
2894 } else {
2895 result = result.child(
2896 h_flex().relative().child(
2897 div()
2898 .top(line_height / 2.)
2899 .absolute()
2900 .w_full()
2901 .h_px()
2902 .bg(color.border_variant),
2903 ),
2904 );
2905 };
2906
2907 result.into_any()
2908 }
2909 };
2910
2911 // Discover the element's content height, then round up to the nearest multiple of line height.
2912 let preliminary_size = element.layout_as_root(
2913 size(available_width, AvailableSpace::MinContent),
2914 window,
2915 cx,
2916 );
2917 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2918 let final_size = if preliminary_size.height == quantized_height {
2919 preliminary_size
2920 } else {
2921 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
2922 };
2923 let mut element_height_in_lines = ((final_size.height / line_height).ceil() as u32).max(1);
2924
2925 let mut row = block_row_start;
2926 let mut x_offset = px(0.);
2927 let mut is_block = true;
2928
2929 if let BlockId::Custom(custom_block_id) = block_id {
2930 if block.has_height() {
2931 if block.place_near() {
2932 if let Some((x_target, line_width)) = x_position {
2933 let margin = em_width * 2;
2934 if line_width + final_size.width + margin
2935 < editor_width + gutter_dimensions.full_width()
2936 && !row_block_types.contains_key(&(row - 1))
2937 && element_height_in_lines == 1
2938 {
2939 x_offset = line_width + margin;
2940 row = row - 1;
2941 is_block = false;
2942 element_height_in_lines = 0;
2943 row_block_types.insert(row, is_block);
2944 } else {
2945 let max_offset =
2946 editor_width + gutter_dimensions.full_width() - final_size.width;
2947 let min_offset = (x_target + em_width - final_size.width)
2948 .max(gutter_dimensions.full_width());
2949 x_offset = x_target.min(max_offset).max(min_offset);
2950 }
2951 }
2952 };
2953 if element_height_in_lines != block.height() {
2954 resized_blocks.insert(custom_block_id, element_height_in_lines);
2955 }
2956 }
2957 }
2958 for i in 0..element_height_in_lines {
2959 row_block_types.insert(row + i, is_block);
2960 }
2961
2962 Some((element, final_size, row, x_offset))
2963 }
2964
2965 fn render_buffer_header(
2966 &self,
2967 for_excerpt: &ExcerptInfo,
2968 is_folded: bool,
2969 is_selected: bool,
2970 is_sticky: bool,
2971 jump_data: JumpData,
2972 window: &mut Window,
2973 cx: &mut App,
2974 ) -> Div {
2975 let editor = self.editor.read(cx);
2976 let file_status = editor
2977 .buffer
2978 .read(cx)
2979 .all_diff_hunks_expanded()
2980 .then(|| {
2981 editor
2982 .project
2983 .as_ref()?
2984 .read(cx)
2985 .status_for_buffer_id(for_excerpt.buffer_id, cx)
2986 })
2987 .flatten();
2988
2989 let include_root = editor
2990 .project
2991 .as_ref()
2992 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2993 .unwrap_or_default();
2994 let can_open_excerpts = Editor::can_open_excerpts_in_file(for_excerpt.buffer.file());
2995 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2996 let filename = path
2997 .as_ref()
2998 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2999 let parent_path = path.as_ref().and_then(|path| {
3000 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
3001 });
3002 let focus_handle = editor.focus_handle(cx);
3003 let colors = cx.theme().colors();
3004
3005 div()
3006 .p_1()
3007 .w_full()
3008 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
3009 .child(
3010 h_flex()
3011 .size_full()
3012 .gap_2()
3013 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
3014 .pl_0p5()
3015 .pr_5()
3016 .rounded_sm()
3017 .when(is_sticky, |el| el.shadow_md())
3018 .border_1()
3019 .map(|div| {
3020 let border_color = if is_selected
3021 && is_folded
3022 && focus_handle.contains_focused(window, cx)
3023 {
3024 colors.border_focused
3025 } else {
3026 colors.border
3027 };
3028 div.border_color(border_color)
3029 })
3030 .bg(colors.editor_subheader_background)
3031 .hover(|style| style.bg(colors.element_hover))
3032 .map(|header| {
3033 let editor = self.editor.clone();
3034 let buffer_id = for_excerpt.buffer_id;
3035 let toggle_chevron_icon =
3036 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
3037 header.child(
3038 div()
3039 .hover(|style| style.bg(colors.element_selected))
3040 .rounded_xs()
3041 .child(
3042 ButtonLike::new("toggle-buffer-fold")
3043 .style(ui::ButtonStyle::Transparent)
3044 .height(px(28.).into())
3045 .width(px(28.).into())
3046 .children(toggle_chevron_icon)
3047 .tooltip({
3048 let focus_handle = focus_handle.clone();
3049 move |window, cx| {
3050 Tooltip::for_action_in(
3051 "Toggle Excerpt Fold",
3052 &ToggleFold,
3053 &focus_handle,
3054 window,
3055 cx,
3056 )
3057 }
3058 })
3059 .on_click(move |_, _, cx| {
3060 if is_folded {
3061 editor.update(cx, |editor, cx| {
3062 editor.unfold_buffer(buffer_id, cx);
3063 });
3064 } else {
3065 editor.update(cx, |editor, cx| {
3066 editor.fold_buffer(buffer_id, cx);
3067 });
3068 }
3069 }),
3070 ),
3071 )
3072 })
3073 .children(
3074 editor
3075 .addons
3076 .values()
3077 .filter_map(|addon| {
3078 addon.render_buffer_header_controls(for_excerpt, window, cx)
3079 })
3080 .take(1),
3081 )
3082 .child(
3083 h_flex()
3084 .cursor_pointer()
3085 .id("path header block")
3086 .size_full()
3087 .justify_between()
3088 .child(
3089 h_flex()
3090 .gap_2()
3091 .child(
3092 Label::new(
3093 filename
3094 .map(SharedString::from)
3095 .unwrap_or_else(|| "untitled".into()),
3096 )
3097 .single_line()
3098 .when_some(
3099 file_status,
3100 |el, status| {
3101 el.color(if status.is_conflicted() {
3102 Color::Conflict
3103 } else if status.is_modified() {
3104 Color::Modified
3105 } else if status.is_deleted() {
3106 Color::Disabled
3107 } else {
3108 Color::Created
3109 })
3110 .when(status.is_deleted(), |el| el.strikethrough())
3111 },
3112 ),
3113 )
3114 .when_some(parent_path, |then, path| {
3115 then.child(div().child(path).text_color(
3116 if file_status.is_some_and(FileStatus::is_deleted) {
3117 colors.text_disabled
3118 } else {
3119 colors.text_muted
3120 },
3121 ))
3122 }),
3123 )
3124 .when(can_open_excerpts && is_selected && path.is_some(), |el| {
3125 el.child(
3126 h_flex()
3127 .id("jump-to-file-button")
3128 .gap_2p5()
3129 .child(Label::new("Jump To File"))
3130 .children(
3131 KeyBinding::for_action_in(
3132 &OpenExcerpts,
3133 &focus_handle,
3134 window,
3135 cx,
3136 )
3137 .map(|binding| binding.into_any_element()),
3138 ),
3139 )
3140 })
3141 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
3142 .on_click(window.listener_for(&self.editor, {
3143 move |editor, e: &ClickEvent, window, cx| {
3144 editor.open_excerpts_common(
3145 Some(jump_data.clone()),
3146 e.down.modifiers.secondary(),
3147 window,
3148 cx,
3149 );
3150 }
3151 })),
3152 ),
3153 )
3154 }
3155
3156 fn render_blocks(
3157 &self,
3158 rows: Range<DisplayRow>,
3159 snapshot: &EditorSnapshot,
3160 hitbox: &Hitbox,
3161 text_hitbox: &Hitbox,
3162 editor_width: Pixels,
3163 scroll_width: &mut Pixels,
3164 gutter_dimensions: &GutterDimensions,
3165 em_width: Pixels,
3166 text_x: Pixels,
3167 line_height: Pixels,
3168 line_layouts: &mut [LineWithInvisibles],
3169 selections: &[Selection<Point>],
3170 selected_buffer_ids: &Vec<BufferId>,
3171 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3172 sticky_header_excerpt_id: Option<ExcerptId>,
3173 window: &mut Window,
3174 cx: &mut App,
3175 ) -> Result<(Vec<BlockLayout>, HashMap<DisplayRow, bool>), HashMap<CustomBlockId, u32>> {
3176 let (fixed_blocks, non_fixed_blocks) = snapshot
3177 .blocks_in_range(rows.clone())
3178 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
3179
3180 let mut focused_block = self
3181 .editor
3182 .update(cx, |editor, _| editor.take_focused_block());
3183 let mut fixed_block_max_width = Pixels::ZERO;
3184 let mut blocks = Vec::new();
3185 let mut resized_blocks = HashMap::default();
3186 let mut row_block_types = HashMap::default();
3187
3188 for (row, block) in fixed_blocks {
3189 let block_id = block.id();
3190
3191 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3192 focused_block = None;
3193 }
3194
3195 if let Some((element, element_size, row, x_offset)) = self.render_block(
3196 block,
3197 AvailableSpace::MinContent,
3198 block_id,
3199 row,
3200 snapshot,
3201 text_x,
3202 &rows,
3203 line_layouts,
3204 gutter_dimensions,
3205 line_height,
3206 em_width,
3207 text_hitbox,
3208 editor_width,
3209 scroll_width,
3210 &mut resized_blocks,
3211 &mut row_block_types,
3212 selections,
3213 selected_buffer_ids,
3214 is_row_soft_wrapped,
3215 sticky_header_excerpt_id,
3216 window,
3217 cx,
3218 ) {
3219 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
3220 blocks.push(BlockLayout {
3221 id: block_id,
3222 x_offset,
3223 row: Some(row),
3224 element,
3225 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
3226 style: BlockStyle::Fixed,
3227 overlaps_gutter: true,
3228 is_buffer_header: block.is_buffer_header(),
3229 });
3230 }
3231 }
3232
3233 for (row, block) in non_fixed_blocks {
3234 let style = block.style();
3235 let width = match (style, block.place_near()) {
3236 (_, true) => AvailableSpace::MinContent,
3237 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
3238 (BlockStyle::Flex, _) => hitbox
3239 .size
3240 .width
3241 .max(fixed_block_max_width)
3242 .max(gutter_dimensions.width + *scroll_width)
3243 .into(),
3244 (BlockStyle::Fixed, _) => unreachable!(),
3245 };
3246 let block_id = block.id();
3247
3248 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3249 focused_block = None;
3250 }
3251
3252 if let Some((element, element_size, row, x_offset)) = self.render_block(
3253 block,
3254 width,
3255 block_id,
3256 row,
3257 snapshot,
3258 text_x,
3259 &rows,
3260 line_layouts,
3261 gutter_dimensions,
3262 line_height,
3263 em_width,
3264 text_hitbox,
3265 editor_width,
3266 scroll_width,
3267 &mut resized_blocks,
3268 &mut row_block_types,
3269 selections,
3270 selected_buffer_ids,
3271 is_row_soft_wrapped,
3272 sticky_header_excerpt_id,
3273 window,
3274 cx,
3275 ) {
3276 blocks.push(BlockLayout {
3277 id: block_id,
3278 x_offset,
3279 row: Some(row),
3280 element,
3281 available_space: size(width, element_size.height.into()),
3282 style,
3283 overlaps_gutter: !block.place_near(),
3284 is_buffer_header: block.is_buffer_header(),
3285 });
3286 }
3287 }
3288
3289 if let Some(focused_block) = focused_block {
3290 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
3291 if focus_handle.is_focused(window) {
3292 if let Some(block) = snapshot.block_for_id(focused_block.id) {
3293 let style = block.style();
3294 let width = match style {
3295 BlockStyle::Fixed => AvailableSpace::MinContent,
3296 BlockStyle::Flex => AvailableSpace::Definite(
3297 hitbox
3298 .size
3299 .width
3300 .max(fixed_block_max_width)
3301 .max(gutter_dimensions.width + *scroll_width),
3302 ),
3303 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
3304 };
3305
3306 if let Some((element, element_size, _, x_offset)) = self.render_block(
3307 &block,
3308 width,
3309 focused_block.id,
3310 rows.end,
3311 snapshot,
3312 text_x,
3313 &rows,
3314 line_layouts,
3315 gutter_dimensions,
3316 line_height,
3317 em_width,
3318 text_hitbox,
3319 editor_width,
3320 scroll_width,
3321 &mut resized_blocks,
3322 &mut row_block_types,
3323 selections,
3324 selected_buffer_ids,
3325 is_row_soft_wrapped,
3326 sticky_header_excerpt_id,
3327 window,
3328 cx,
3329 ) {
3330 blocks.push(BlockLayout {
3331 id: block.id(),
3332 x_offset,
3333 row: None,
3334 element,
3335 available_space: size(width, element_size.height.into()),
3336 style,
3337 overlaps_gutter: true,
3338 is_buffer_header: block.is_buffer_header(),
3339 });
3340 }
3341 }
3342 }
3343 }
3344 }
3345
3346 if resized_blocks.is_empty() {
3347 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
3348 Ok((blocks, row_block_types))
3349 } else {
3350 Err(resized_blocks)
3351 }
3352 }
3353
3354 fn layout_blocks(
3355 &self,
3356 blocks: &mut Vec<BlockLayout>,
3357 hitbox: &Hitbox,
3358 line_height: Pixels,
3359 scroll_pixel_position: gpui::Point<Pixels>,
3360 window: &mut Window,
3361 cx: &mut App,
3362 ) {
3363 for block in blocks {
3364 let mut origin = if let Some(row) = block.row {
3365 hitbox.origin
3366 + point(
3367 block.x_offset,
3368 row.as_f32() * line_height - scroll_pixel_position.y,
3369 )
3370 } else {
3371 // Position the block outside the visible area
3372 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
3373 };
3374
3375 if !matches!(block.style, BlockStyle::Sticky) {
3376 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
3377 }
3378
3379 let focus_handle =
3380 block
3381 .element
3382 .prepaint_as_root(origin, block.available_space, window, cx);
3383
3384 if let Some(focus_handle) = focus_handle {
3385 self.editor.update(cx, |editor, _cx| {
3386 editor.set_focused_block(FocusedBlock {
3387 id: block.id,
3388 focus_handle: focus_handle.downgrade(),
3389 });
3390 });
3391 }
3392 }
3393 }
3394
3395 fn layout_sticky_buffer_header(
3396 &self,
3397 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
3398 scroll_position: f32,
3399 line_height: Pixels,
3400 snapshot: &EditorSnapshot,
3401 hitbox: &Hitbox,
3402 selected_buffer_ids: &Vec<BufferId>,
3403 blocks: &[BlockLayout],
3404 window: &mut Window,
3405 cx: &mut App,
3406 ) -> AnyElement {
3407 let jump_data = header_jump_data(
3408 snapshot,
3409 DisplayRow(scroll_position as u32),
3410 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3411 excerpt,
3412 );
3413
3414 let editor_bg_color = cx.theme().colors().editor_background;
3415
3416 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3417
3418 let mut header = v_flex()
3419 .relative()
3420 .child(
3421 div()
3422 .w(hitbox.bounds.size.width)
3423 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3424 .bg(linear_gradient(
3425 0.,
3426 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3427 linear_color_stop(editor_bg_color, 0.6),
3428 ))
3429 .absolute()
3430 .top_0(),
3431 )
3432 .child(
3433 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
3434 .into_any_element(),
3435 )
3436 .into_any_element();
3437
3438 let mut origin = hitbox.origin;
3439 // Move floating header up to avoid colliding with the next buffer header.
3440 for block in blocks.iter() {
3441 if !block.is_buffer_header {
3442 continue;
3443 }
3444
3445 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position as u32) else {
3446 continue;
3447 };
3448
3449 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
3450 let offset = scroll_position - max_row as f32;
3451
3452 if offset > 0.0 {
3453 origin.y -= offset * line_height;
3454 }
3455 break;
3456 }
3457
3458 let size = size(
3459 AvailableSpace::Definite(hitbox.size.width),
3460 AvailableSpace::MinContent,
3461 );
3462
3463 header.prepaint_as_root(origin, size, window, cx);
3464
3465 header
3466 }
3467
3468 fn layout_cursor_popovers(
3469 &self,
3470 line_height: Pixels,
3471 text_hitbox: &Hitbox,
3472 content_origin: gpui::Point<Pixels>,
3473 start_row: DisplayRow,
3474 scroll_pixel_position: gpui::Point<Pixels>,
3475 line_layouts: &[LineWithInvisibles],
3476 cursor: DisplayPoint,
3477 cursor_point: Point,
3478 style: &EditorStyle,
3479 window: &mut Window,
3480 cx: &mut App,
3481 ) {
3482 let mut min_menu_height = Pixels::ZERO;
3483 let mut max_menu_height = Pixels::ZERO;
3484 let mut height_above_menu = Pixels::ZERO;
3485 let height_below_menu = Pixels::ZERO;
3486 let mut edit_prediction_popover_visible = false;
3487 let mut context_menu_visible = false;
3488 let context_menu_placement;
3489
3490 {
3491 let editor = self.editor.read(cx);
3492 if editor
3493 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
3494 {
3495 height_above_menu +=
3496 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3497 edit_prediction_popover_visible = true;
3498 }
3499
3500 if editor.context_menu_visible() {
3501 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3502 let (min_height_in_lines, max_height_in_lines) = editor
3503 .context_menu_options
3504 .as_ref()
3505 .map_or((3, 12), |options| {
3506 (options.min_entries_visible, options.max_entries_visible)
3507 });
3508
3509 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
3510 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
3511 context_menu_visible = true;
3512 }
3513 }
3514 context_menu_placement = editor
3515 .context_menu_options
3516 .as_ref()
3517 .and_then(|options| options.placement.clone());
3518 }
3519
3520 let visible = edit_prediction_popover_visible || context_menu_visible;
3521 if !visible {
3522 return;
3523 }
3524
3525 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3526 let target_position = content_origin
3527 + gpui::Point {
3528 x: cmp::max(
3529 px(0.),
3530 cursor_row_layout.x_for_index(cursor.column() as usize)
3531 - scroll_pixel_position.x,
3532 ),
3533 y: cmp::max(
3534 px(0.),
3535 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3536 ),
3537 };
3538
3539 let viewport_bounds =
3540 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3541 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3542 ..Default::default()
3543 });
3544
3545 let min_height = height_above_menu + min_menu_height + height_below_menu;
3546 let max_height = height_above_menu + max_menu_height + height_below_menu;
3547 let Some((laid_out_popovers, y_flipped)) = self.layout_popovers_above_or_below_line(
3548 target_position,
3549 line_height,
3550 min_height,
3551 max_height,
3552 context_menu_placement,
3553 text_hitbox,
3554 viewport_bounds,
3555 window,
3556 cx,
3557 |height, max_width_for_stable_x, y_flipped, window, cx| {
3558 // First layout the menu to get its size - others can be at least this wide.
3559 let context_menu = if context_menu_visible {
3560 let menu_height = if y_flipped {
3561 height - height_below_menu
3562 } else {
3563 height - height_above_menu
3564 };
3565 let mut element = self
3566 .render_context_menu(line_height, menu_height, window, cx)
3567 .expect("Visible context menu should always render.");
3568 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3569 Some((CursorPopoverType::CodeContextMenu, element, size))
3570 } else {
3571 None
3572 };
3573 let min_width = context_menu
3574 .as_ref()
3575 .map_or(px(0.), |(_, _, size)| size.width);
3576 let max_width = max_width_for_stable_x.max(
3577 context_menu
3578 .as_ref()
3579 .map_or(px(0.), |(_, _, size)| size.width),
3580 );
3581
3582 let edit_prediction = if edit_prediction_popover_visible {
3583 self.editor.update(cx, move |editor, cx| {
3584 let accept_binding = editor.accept_edit_prediction_keybind(window, cx);
3585 let mut element = editor.render_edit_prediction_cursor_popover(
3586 min_width,
3587 max_width,
3588 cursor_point,
3589 style,
3590 accept_binding.keystroke(),
3591 window,
3592 cx,
3593 )?;
3594 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3595 Some((CursorPopoverType::EditPrediction, element, size))
3596 })
3597 } else {
3598 None
3599 };
3600 vec![edit_prediction, context_menu]
3601 .into_iter()
3602 .flatten()
3603 .collect::<Vec<_>>()
3604 },
3605 ) else {
3606 return;
3607 };
3608
3609 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3610 .iter()
3611 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3612 else {
3613 return;
3614 };
3615 let last_ix = laid_out_popovers.len() - 1;
3616 let menu_is_last = menu_ix == last_ix;
3617 let first_popover_bounds = laid_out_popovers[0].1;
3618 let last_popover_bounds = laid_out_popovers[last_ix].1;
3619
3620 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3621 // right, and otherwise it goes below or to the right.
3622 let mut target_bounds = Bounds::from_corners(
3623 first_popover_bounds.origin,
3624 last_popover_bounds.bottom_right(),
3625 );
3626 target_bounds.size.width = menu_bounds.size.width;
3627
3628 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3629 // based on this is preferred for layout stability.
3630 let mut max_target_bounds = target_bounds;
3631 max_target_bounds.size.height = max_height;
3632 if y_flipped {
3633 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3634 }
3635
3636 // Add spacing around `target_bounds` and `max_target_bounds`.
3637 let mut extend_amount = Edges::all(MENU_GAP);
3638 if y_flipped {
3639 extend_amount.bottom = line_height;
3640 } else {
3641 extend_amount.top = line_height;
3642 }
3643 let target_bounds = target_bounds.extend(extend_amount);
3644 let max_target_bounds = max_target_bounds.extend(extend_amount);
3645
3646 let must_place_above_or_below =
3647 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3648 laid_out_popovers[menu_ix + 1..]
3649 .iter()
3650 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3651 } else {
3652 false
3653 };
3654
3655 self.layout_context_menu_aside(
3656 y_flipped,
3657 *menu_bounds,
3658 target_bounds,
3659 max_target_bounds,
3660 max_menu_height,
3661 must_place_above_or_below,
3662 text_hitbox,
3663 viewport_bounds,
3664 window,
3665 cx,
3666 );
3667 }
3668
3669 fn layout_gutter_menu(
3670 &self,
3671 line_height: Pixels,
3672 text_hitbox: &Hitbox,
3673 content_origin: gpui::Point<Pixels>,
3674 scroll_pixel_position: gpui::Point<Pixels>,
3675 gutter_overshoot: Pixels,
3676 window: &mut Window,
3677 cx: &mut App,
3678 ) {
3679 let editor = self.editor.read(cx);
3680 if !editor.context_menu_visible() {
3681 return;
3682 }
3683 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3684 editor.context_menu_origin()
3685 else {
3686 return;
3687 };
3688 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3689 // indicator than just a plain first column of the text field.
3690 let target_position = content_origin
3691 + gpui::Point {
3692 x: -gutter_overshoot,
3693 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3694 };
3695
3696 let (min_height_in_lines, max_height_in_lines) = editor
3697 .context_menu_options
3698 .as_ref()
3699 .map_or((3, 12), |options| {
3700 (options.min_entries_visible, options.max_entries_visible)
3701 });
3702
3703 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
3704 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
3705 let viewport_bounds =
3706 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3707 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3708 ..Default::default()
3709 });
3710 self.layout_popovers_above_or_below_line(
3711 target_position,
3712 line_height,
3713 min_height,
3714 max_height,
3715 editor
3716 .context_menu_options
3717 .as_ref()
3718 .and_then(|options| options.placement.clone()),
3719 text_hitbox,
3720 viewport_bounds,
3721 window,
3722 cx,
3723 move |height, _max_width_for_stable_x, _, window, cx| {
3724 let mut element = self
3725 .render_context_menu(line_height, height, window, cx)
3726 .expect("Visible context menu should always render.");
3727 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3728 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3729 },
3730 );
3731 }
3732
3733 fn layout_popovers_above_or_below_line(
3734 &self,
3735 target_position: gpui::Point<Pixels>,
3736 line_height: Pixels,
3737 min_height: Pixels,
3738 max_height: Pixels,
3739 placement: Option<ContextMenuPlacement>,
3740 text_hitbox: &Hitbox,
3741 viewport_bounds: Bounds<Pixels>,
3742 window: &mut Window,
3743 cx: &mut App,
3744 make_sized_popovers: impl FnOnce(
3745 Pixels,
3746 Pixels,
3747 bool,
3748 &mut Window,
3749 &mut App,
3750 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3751 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3752 let text_style = TextStyleRefinement {
3753 line_height: Some(DefiniteLength::Fraction(
3754 BufferLineHeight::Comfortable.value(),
3755 )),
3756 ..Default::default()
3757 };
3758 window.with_text_style(Some(text_style), |window| {
3759 // If the max height won't fit below and there is more space above, put it above the line.
3760 let bottom_y_when_flipped = target_position.y - line_height;
3761 let available_above = bottom_y_when_flipped - text_hitbox.top();
3762 let available_below = text_hitbox.bottom() - target_position.y;
3763 let y_overflows_below = max_height > available_below;
3764 let mut y_flipped = match placement {
3765 Some(ContextMenuPlacement::Above) => true,
3766 Some(ContextMenuPlacement::Below) => false,
3767 None => y_overflows_below && available_above > available_below,
3768 };
3769 let mut height = cmp::min(
3770 max_height,
3771 if y_flipped {
3772 available_above
3773 } else {
3774 available_below
3775 },
3776 );
3777
3778 // If the min height doesn't fit within text bounds, instead fit within the window.
3779 if height < min_height {
3780 let available_above = bottom_y_when_flipped;
3781 let available_below = viewport_bounds.bottom() - target_position.y;
3782 let (y_flipped_override, height_override) = match placement {
3783 Some(ContextMenuPlacement::Above) => {
3784 (true, cmp::min(available_above, min_height))
3785 }
3786 Some(ContextMenuPlacement::Below) => {
3787 (false, cmp::min(available_below, min_height))
3788 }
3789 None => {
3790 if available_below > min_height {
3791 (false, min_height)
3792 } else if available_above > min_height {
3793 (true, min_height)
3794 } else if available_above > available_below {
3795 (true, available_above)
3796 } else {
3797 (false, available_below)
3798 }
3799 }
3800 };
3801 y_flipped = y_flipped_override;
3802 height = height_override;
3803 }
3804
3805 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3806
3807 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3808 // for very narrow windows.
3809 let popovers =
3810 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3811 if popovers.is_empty() {
3812 return None;
3813 }
3814
3815 let max_width = popovers
3816 .iter()
3817 .map(|(_, _, size)| size.width)
3818 .max()
3819 .unwrap_or_default();
3820
3821 let mut current_position = gpui::Point {
3822 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3823 // overflow. Include space for the scrollbar.
3824 x: target_position
3825 .x
3826 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3827 y: if y_flipped {
3828 bottom_y_when_flipped
3829 } else {
3830 target_position.y
3831 },
3832 };
3833
3834 let mut laid_out_popovers = popovers
3835 .into_iter()
3836 .map(|(popover_type, element, size)| {
3837 if y_flipped {
3838 current_position.y -= size.height;
3839 }
3840 let position = current_position;
3841 window.defer_draw(element, current_position, 1);
3842 if !y_flipped {
3843 current_position.y += size.height + MENU_GAP;
3844 } else {
3845 current_position.y -= MENU_GAP;
3846 }
3847 (popover_type, Bounds::new(position, size))
3848 })
3849 .collect::<Vec<_>>();
3850
3851 if y_flipped {
3852 laid_out_popovers.reverse();
3853 }
3854
3855 Some((laid_out_popovers, y_flipped))
3856 })
3857 }
3858
3859 fn layout_context_menu_aside(
3860 &self,
3861 y_flipped: bool,
3862 menu_bounds: Bounds<Pixels>,
3863 target_bounds: Bounds<Pixels>,
3864 max_target_bounds: Bounds<Pixels>,
3865 max_height: Pixels,
3866 must_place_above_or_below: bool,
3867 text_hitbox: &Hitbox,
3868 viewport_bounds: Bounds<Pixels>,
3869 window: &mut Window,
3870 cx: &mut App,
3871 ) {
3872 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3873 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3874 && !must_place_above_or_below
3875 {
3876 let max_width = cmp::min(
3877 available_within_viewport.right - px(1.),
3878 MENU_ASIDE_MAX_WIDTH,
3879 );
3880 let Some(mut aside) = self.render_context_menu_aside(
3881 size(max_width, max_height - POPOVER_Y_PADDING),
3882 window,
3883 cx,
3884 ) else {
3885 return;
3886 };
3887 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3888 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3889 Some((aside, right_position))
3890 } else {
3891 let max_size = size(
3892 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3893 // won't be needed here.
3894 cmp::min(
3895 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3896 viewport_bounds.right(),
3897 ),
3898 cmp::min(
3899 max_height,
3900 cmp::max(
3901 available_within_viewport.top,
3902 available_within_viewport.bottom,
3903 ),
3904 ) - POPOVER_Y_PADDING,
3905 );
3906 let Some(mut aside) = self.render_context_menu_aside(max_size, window, cx) else {
3907 return;
3908 };
3909 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3910
3911 let top_position = point(
3912 menu_bounds.origin.x,
3913 target_bounds.top() - actual_size.height,
3914 );
3915 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3916
3917 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3918 // Prefer to fit on the same side of the line as the menu, then on the other side of
3919 // the line.
3920 if !y_flipped && wanted.height < available.bottom {
3921 Some(bottom_position)
3922 } else if !y_flipped && wanted.height < available.top {
3923 Some(top_position)
3924 } else if y_flipped && wanted.height < available.top {
3925 Some(top_position)
3926 } else if y_flipped && wanted.height < available.bottom {
3927 Some(bottom_position)
3928 } else {
3929 None
3930 }
3931 };
3932
3933 // Prefer choosing a direction using max sizes rather than actual size for stability.
3934 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3935 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3936 let aside_position = fit_within(available_within_text, wanted)
3937 // Fallback: fit max size in window.
3938 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3939 // Fallback: fit actual size in window.
3940 .or_else(|| fit_within(available_within_viewport, actual_size));
3941
3942 aside_position.map(|position| (aside, position))
3943 };
3944
3945 // Skip drawing if it doesn't fit anywhere.
3946 if let Some((aside, position)) = positioned_aside {
3947 window.defer_draw(aside, position, 2);
3948 }
3949 }
3950
3951 fn render_context_menu(
3952 &self,
3953 line_height: Pixels,
3954 height: Pixels,
3955 window: &mut Window,
3956 cx: &mut App,
3957 ) -> Option<AnyElement> {
3958 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3959 self.editor.update(cx, |editor, cx| {
3960 editor.render_context_menu(&self.style, max_height_in_lines, window, cx)
3961 })
3962 }
3963
3964 fn render_context_menu_aside(
3965 &self,
3966 max_size: Size<Pixels>,
3967 window: &mut Window,
3968 cx: &mut App,
3969 ) -> Option<AnyElement> {
3970 if max_size.width < px(100.) || max_size.height < px(12.) {
3971 None
3972 } else {
3973 self.editor.update(cx, |editor, cx| {
3974 editor.render_context_menu_aside(max_size, window, cx)
3975 })
3976 }
3977 }
3978
3979 fn layout_mouse_context_menu(
3980 &self,
3981 editor_snapshot: &EditorSnapshot,
3982 visible_range: Range<DisplayRow>,
3983 content_origin: gpui::Point<Pixels>,
3984 window: &mut Window,
3985 cx: &mut App,
3986 ) -> Option<AnyElement> {
3987 let position = self.editor.update(cx, |editor, _cx| {
3988 let visible_start_point = editor.display_to_pixel_point(
3989 DisplayPoint::new(visible_range.start, 0),
3990 editor_snapshot,
3991 window,
3992 )?;
3993 let visible_end_point = editor.display_to_pixel_point(
3994 DisplayPoint::new(visible_range.end, 0),
3995 editor_snapshot,
3996 window,
3997 )?;
3998
3999 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
4000 let (source_display_point, position) = match mouse_context_menu.position {
4001 MenuPosition::PinnedToScreen(point) => (None, point),
4002 MenuPosition::PinnedToEditor { source, offset } => {
4003 let source_display_point = source.to_display_point(editor_snapshot);
4004 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
4005 let position = content_origin + source_point + offset;
4006 (Some(source_display_point), position)
4007 }
4008 };
4009
4010 let source_included = source_display_point.map_or(true, |source_display_point| {
4011 visible_range
4012 .to_inclusive()
4013 .contains(&source_display_point.row())
4014 });
4015 let position_included =
4016 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
4017 if !source_included && !position_included {
4018 None
4019 } else {
4020 Some(position)
4021 }
4022 })?;
4023
4024 let text_style = TextStyleRefinement {
4025 line_height: Some(DefiniteLength::Fraction(
4026 BufferLineHeight::Comfortable.value(),
4027 )),
4028 ..Default::default()
4029 };
4030 window.with_text_style(Some(text_style), |window| {
4031 let mut element = self.editor.update(cx, |editor, _| {
4032 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
4033 let context_menu = mouse_context_menu.context_menu.clone();
4034
4035 Some(
4036 deferred(
4037 anchored()
4038 .position(position)
4039 .child(context_menu)
4040 .anchor(Corner::TopLeft)
4041 .snap_to_window_with_margin(px(8.)),
4042 )
4043 .with_priority(1)
4044 .into_any(),
4045 )
4046 })?;
4047
4048 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
4049 Some(element)
4050 })
4051 }
4052
4053 fn layout_hover_popovers(
4054 &self,
4055 snapshot: &EditorSnapshot,
4056 hitbox: &Hitbox,
4057 text_hitbox: &Hitbox,
4058 visible_display_row_range: Range<DisplayRow>,
4059 content_origin: gpui::Point<Pixels>,
4060 scroll_pixel_position: gpui::Point<Pixels>,
4061 line_layouts: &[LineWithInvisibles],
4062 line_height: Pixels,
4063 em_width: Pixels,
4064 window: &mut Window,
4065 cx: &mut App,
4066 ) {
4067 struct MeasuredHoverPopover {
4068 element: AnyElement,
4069 size: Size<Pixels>,
4070 horizontal_offset: Pixels,
4071 }
4072
4073 let max_size = size(
4074 (120. * em_width) // Default size
4075 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4076 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4077 (16. * line_height) // Default size
4078 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4079 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4080 );
4081
4082 let hover_popovers = self.editor.update(cx, |editor, cx| {
4083 editor.hover_state.render(
4084 snapshot,
4085 visible_display_row_range.clone(),
4086 max_size,
4087 window,
4088 cx,
4089 )
4090 });
4091 let Some((position, hover_popovers)) = hover_popovers else {
4092 return;
4093 };
4094
4095 // This is safe because we check on layout whether the required row is available
4096 let hovered_row_layout =
4097 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
4098
4099 // Compute Hovered Point
4100 let x =
4101 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
4102 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
4103 let hovered_point = content_origin + point(x, y);
4104
4105 let mut overall_height = Pixels::ZERO;
4106 let mut measured_hover_popovers = Vec::new();
4107 for mut hover_popover in hover_popovers {
4108 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
4109 let horizontal_offset =
4110 (text_hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
4111 .min(Pixels::ZERO);
4112
4113 overall_height += HOVER_POPOVER_GAP + size.height;
4114
4115 measured_hover_popovers.push(MeasuredHoverPopover {
4116 element: hover_popover,
4117 size,
4118 horizontal_offset,
4119 });
4120 }
4121 overall_height += HOVER_POPOVER_GAP;
4122
4123 fn draw_occluder(
4124 width: Pixels,
4125 origin: gpui::Point<Pixels>,
4126 window: &mut Window,
4127 cx: &mut App,
4128 ) {
4129 let mut occlusion = div()
4130 .size_full()
4131 .occlude()
4132 .on_mouse_move(|_, _, cx| cx.stop_propagation())
4133 .into_any_element();
4134 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
4135 window.defer_draw(occlusion, origin, 2);
4136 }
4137
4138 if hovered_point.y > overall_height {
4139 // There is enough space above. Render popovers above the hovered point
4140 let mut current_y = hovered_point.y;
4141 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4142 let size = popover.size;
4143 let popover_origin = point(
4144 hovered_point.x + popover.horizontal_offset,
4145 current_y - size.height,
4146 );
4147
4148 window.defer_draw(popover.element, popover_origin, 2);
4149 if position != itertools::Position::Last {
4150 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
4151 draw_occluder(size.width, origin, window, cx);
4152 }
4153
4154 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4155 }
4156 } else {
4157 // There is not enough space above. Render popovers below the hovered point
4158 let mut current_y = hovered_point.y + line_height;
4159 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4160 let size = popover.size;
4161 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4162
4163 window.defer_draw(popover.element, popover_origin, 2);
4164 if position != itertools::Position::Last {
4165 let origin = point(popover_origin.x, popover_origin.y + size.height);
4166 draw_occluder(size.width, origin, window, cx);
4167 }
4168
4169 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4170 }
4171 }
4172 }
4173
4174 fn layout_diff_hunk_controls(
4175 &self,
4176 row_range: Range<DisplayRow>,
4177 row_infos: &[RowInfo],
4178 text_hitbox: &Hitbox,
4179 position_map: &PositionMap,
4180 newest_cursor_position: Option<DisplayPoint>,
4181 line_height: Pixels,
4182 scroll_pixel_position: gpui::Point<Pixels>,
4183 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
4184 highlighted_rows: &BTreeMap<DisplayRow, LineHighlight>,
4185 editor: Entity<Editor>,
4186 window: &mut Window,
4187 cx: &mut App,
4188 ) -> Vec<AnyElement> {
4189 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
4190 let point_for_position = position_map.point_for_position(window.mouse_position());
4191
4192 let mut controls = vec![];
4193
4194 let active_positions = [
4195 Some(point_for_position.previous_valid),
4196 newest_cursor_position,
4197 ];
4198
4199 for (hunk, _) in display_hunks {
4200 if let DisplayDiffHunk::Unfolded {
4201 display_row_range,
4202 multi_buffer_range,
4203 status,
4204 is_created_file,
4205 ..
4206 } = &hunk
4207 {
4208 if display_row_range.start < row_range.start
4209 || display_row_range.start >= row_range.end
4210 {
4211 continue;
4212 }
4213 if highlighted_rows
4214 .get(&display_row_range.start)
4215 .and_then(|highlight| highlight.type_id)
4216 .is_some_and(|type_id| {
4217 [
4218 TypeId::of::<ConflictsOuter>(),
4219 TypeId::of::<ConflictsOursMarker>(),
4220 TypeId::of::<ConflictsOurs>(),
4221 TypeId::of::<ConflictsTheirs>(),
4222 TypeId::of::<ConflictsTheirsMarker>(),
4223 ]
4224 .contains(&type_id)
4225 })
4226 {
4227 continue;
4228 }
4229 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4230 if row_infos[row_ix].diff_status.is_none() {
4231 continue;
4232 }
4233 if row_infos[row_ix]
4234 .diff_status
4235 .is_some_and(|status| status.is_added())
4236 && !status.is_added()
4237 {
4238 continue;
4239 }
4240 if active_positions
4241 .iter()
4242 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4243 {
4244 let y = display_row_range.start.as_f32() * line_height
4245 + text_hitbox.bounds.top()
4246 - scroll_pixel_position.y;
4247
4248 let mut element = render_diff_hunk_controls(
4249 display_row_range.start.0,
4250 status,
4251 multi_buffer_range.clone(),
4252 *is_created_file,
4253 line_height,
4254 &editor,
4255 window,
4256 cx,
4257 );
4258 let size =
4259 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
4260
4261 let x = text_hitbox.bounds.right()
4262 - self.style.scrollbar_width
4263 - px(10.)
4264 - size.width;
4265
4266 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
4267 element.prepaint(window, cx)
4268 });
4269 controls.push(element);
4270 }
4271 }
4272 }
4273
4274 controls
4275 }
4276
4277 fn layout_signature_help(
4278 &self,
4279 hitbox: &Hitbox,
4280 text_hitbox: &Hitbox,
4281 content_origin: gpui::Point<Pixels>,
4282 scroll_pixel_position: gpui::Point<Pixels>,
4283 newest_selection_head: Option<DisplayPoint>,
4284 start_row: DisplayRow,
4285 line_layouts: &[LineWithInvisibles],
4286 line_height: Pixels,
4287 em_width: Pixels,
4288 window: &mut Window,
4289 cx: &mut App,
4290 ) {
4291 if !self.editor.focus_handle(cx).is_focused(window) {
4292 return;
4293 }
4294 let Some(newest_selection_head) = newest_selection_head else {
4295 return;
4296 };
4297
4298 let max_size = size(
4299 (120. * em_width) // Default size
4300 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4301 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4302 (16. * line_height) // Default size
4303 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4304 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4305 );
4306
4307 let maybe_element = self.editor.update(cx, |editor, cx| {
4308 if let Some(popover) = editor.signature_help_state.popover_mut() {
4309 let element = popover.render(max_size, cx);
4310 Some(element)
4311 } else {
4312 None
4313 }
4314 });
4315 let Some(mut element) = maybe_element else {
4316 return;
4317 };
4318
4319 let selection_row = newest_selection_head.row();
4320 let Some(cursor_row_layout) = (selection_row >= start_row)
4321 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
4322 .flatten()
4323 else {
4324 return;
4325 };
4326
4327 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4328 - scroll_pixel_position.x;
4329 let target_y = selection_row.as_f32() * line_height - scroll_pixel_position.y;
4330 let target_point = content_origin + point(target_x, target_y);
4331
4332 let actual_size = element.layout_as_root(max_size.into(), window, cx);
4333 let overall_height = actual_size.height + HOVER_POPOVER_GAP;
4334
4335 let popover_origin = if target_point.y > overall_height {
4336 point(target_point.x, target_point.y - actual_size.height)
4337 } else {
4338 point(
4339 target_point.x,
4340 target_point.y + line_height + HOVER_POPOVER_GAP,
4341 )
4342 };
4343
4344 let horizontal_offset = (text_hitbox.top_right().x
4345 - POPOVER_RIGHT_OFFSET
4346 - (popover_origin.x + actual_size.width))
4347 .min(Pixels::ZERO);
4348 let final_origin = point(popover_origin.x + horizontal_offset, popover_origin.y);
4349
4350 window.defer_draw(element, final_origin, 2);
4351 }
4352
4353 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4354 window.paint_layer(layout.hitbox.bounds, |window| {
4355 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4356 let gutter_bg = cx.theme().colors().editor_gutter_background;
4357 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4358 window.paint_quad(fill(
4359 layout.position_map.text_hitbox.bounds,
4360 self.style.background,
4361 ));
4362
4363 if let EditorMode::Full {
4364 show_active_line_background,
4365 ..
4366 } = layout.mode
4367 {
4368 let mut active_rows = layout.active_rows.iter().peekable();
4369 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4370 let mut end_row = start_row.0;
4371 while active_rows
4372 .peek()
4373 .map_or(false, |(active_row, has_selection)| {
4374 active_row.0 == end_row + 1
4375 && has_selection.selection == contains_non_empty_selection.selection
4376 })
4377 {
4378 active_rows.next().unwrap();
4379 end_row += 1;
4380 }
4381
4382 if show_active_line_background && !contains_non_empty_selection.selection {
4383 let highlight_h_range =
4384 match layout.position_map.snapshot.current_line_highlight {
4385 CurrentLineHighlight::Gutter => Some(Range {
4386 start: layout.hitbox.left(),
4387 end: layout.gutter_hitbox.right(),
4388 }),
4389 CurrentLineHighlight::Line => Some(Range {
4390 start: layout.position_map.text_hitbox.bounds.left(),
4391 end: layout.position_map.text_hitbox.bounds.right(),
4392 }),
4393 CurrentLineHighlight::All => Some(Range {
4394 start: layout.hitbox.left(),
4395 end: layout.hitbox.right(),
4396 }),
4397 CurrentLineHighlight::None => None,
4398 };
4399 if let Some(range) = highlight_h_range {
4400 let active_line_bg = cx.theme().colors().editor_active_line_background;
4401 let bounds = Bounds {
4402 origin: point(
4403 range.start,
4404 layout.hitbox.origin.y
4405 + (start_row.as_f32() - scroll_top)
4406 * layout.position_map.line_height,
4407 ),
4408 size: size(
4409 range.end - range.start,
4410 layout.position_map.line_height
4411 * (end_row - start_row.0 + 1) as f32,
4412 ),
4413 };
4414 window.paint_quad(fill(bounds, active_line_bg));
4415 }
4416 }
4417 }
4418
4419 let mut paint_highlight = |highlight_row_start: DisplayRow,
4420 highlight_row_end: DisplayRow,
4421 highlight: crate::LineHighlight,
4422 edges| {
4423 let mut origin_x = layout.hitbox.left();
4424 let mut width = layout.hitbox.size.width;
4425 if !highlight.include_gutter {
4426 origin_x += layout.gutter_hitbox.size.width;
4427 width -= layout.gutter_hitbox.size.width;
4428 }
4429
4430 let origin = point(
4431 origin_x,
4432 layout.hitbox.origin.y
4433 + (highlight_row_start.as_f32() - scroll_top)
4434 * layout.position_map.line_height,
4435 );
4436 let size = size(
4437 width,
4438 layout.position_map.line_height
4439 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4440 );
4441 let mut quad = fill(Bounds { origin, size }, highlight.background);
4442 if let Some(border_color) = highlight.border {
4443 quad.border_color = border_color;
4444 quad.border_widths = edges
4445 }
4446 window.paint_quad(quad);
4447 };
4448
4449 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
4450 None;
4451 for (&new_row, &new_background) in &layout.highlighted_rows {
4452 match &mut current_paint {
4453 &mut Some((current_background, ref mut current_range, mut edges)) => {
4454 let new_range_started = current_background != new_background
4455 || current_range.end.next_row() != new_row;
4456 if new_range_started {
4457 if current_range.end.next_row() == new_row {
4458 edges.bottom = px(0.);
4459 };
4460 paint_highlight(
4461 current_range.start,
4462 current_range.end,
4463 current_background,
4464 edges,
4465 );
4466 let edges = Edges {
4467 top: if current_range.end.next_row() != new_row {
4468 px(1.)
4469 } else {
4470 px(0.)
4471 },
4472 bottom: px(1.),
4473 ..Default::default()
4474 };
4475 current_paint = Some((new_background, new_row..new_row, edges));
4476 continue;
4477 } else {
4478 current_range.end = current_range.end.next_row();
4479 }
4480 }
4481 None => {
4482 let edges = Edges {
4483 top: px(1.),
4484 bottom: px(1.),
4485 ..Default::default()
4486 };
4487 current_paint = Some((new_background, new_row..new_row, edges))
4488 }
4489 };
4490 }
4491 if let Some((color, range, edges)) = current_paint {
4492 paint_highlight(range.start, range.end, color, edges);
4493 }
4494
4495 let scroll_left =
4496 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4497
4498 for (wrap_position, active) in layout.wrap_guides.iter() {
4499 let x = (layout.position_map.text_hitbox.origin.x
4500 + *wrap_position
4501 + layout.position_map.em_width / 2.)
4502 - scroll_left;
4503
4504 let show_scrollbars = layout
4505 .scrollbars_layout
4506 .as_ref()
4507 .map_or(false, |layout| layout.visible);
4508
4509 if x < layout.position_map.text_hitbox.origin.x
4510 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4511 {
4512 continue;
4513 }
4514
4515 let color = if *active {
4516 cx.theme().colors().editor_active_wrap_guide
4517 } else {
4518 cx.theme().colors().editor_wrap_guide
4519 };
4520 window.paint_quad(fill(
4521 Bounds {
4522 origin: point(x, layout.position_map.text_hitbox.origin.y),
4523 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4524 },
4525 color,
4526 ));
4527 }
4528 }
4529 })
4530 }
4531
4532 fn paint_indent_guides(
4533 &mut self,
4534 layout: &mut EditorLayout,
4535 window: &mut Window,
4536 cx: &mut App,
4537 ) {
4538 let Some(indent_guides) = &layout.indent_guides else {
4539 return;
4540 };
4541
4542 let faded_color = |color: Hsla, alpha: f32| {
4543 let mut faded = color;
4544 faded.a = alpha;
4545 faded
4546 };
4547
4548 for indent_guide in indent_guides {
4549 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4550 let settings = indent_guide.settings;
4551
4552 // TODO fixed for now, expose them through themes later
4553 const INDENT_AWARE_ALPHA: f32 = 0.2;
4554 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4555 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4556 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4557
4558 let line_color = match (settings.coloring, indent_guide.active) {
4559 (IndentGuideColoring::Disabled, _) => None,
4560 (IndentGuideColoring::Fixed, false) => {
4561 Some(cx.theme().colors().editor_indent_guide)
4562 }
4563 (IndentGuideColoring::Fixed, true) => {
4564 Some(cx.theme().colors().editor_indent_guide_active)
4565 }
4566 (IndentGuideColoring::IndentAware, false) => {
4567 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4568 }
4569 (IndentGuideColoring::IndentAware, true) => {
4570 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4571 }
4572 };
4573
4574 let background_color = match (settings.background_coloring, indent_guide.active) {
4575 (IndentGuideBackgroundColoring::Disabled, _) => None,
4576 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4577 indent_accent_colors,
4578 INDENT_AWARE_BACKGROUND_ALPHA,
4579 )),
4580 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4581 indent_accent_colors,
4582 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4583 )),
4584 };
4585
4586 let requested_line_width = if indent_guide.active {
4587 settings.active_line_width
4588 } else {
4589 settings.line_width
4590 }
4591 .clamp(1, 10);
4592 let mut line_indicator_width = 0.;
4593 if let Some(color) = line_color {
4594 window.paint_quad(fill(
4595 Bounds {
4596 origin: indent_guide.origin,
4597 size: size(px(requested_line_width as f32), indent_guide.length),
4598 },
4599 color,
4600 ));
4601 line_indicator_width = requested_line_width as f32;
4602 }
4603
4604 if let Some(color) = background_color {
4605 let width = indent_guide.single_indent_width - px(line_indicator_width);
4606 window.paint_quad(fill(
4607 Bounds {
4608 origin: point(
4609 indent_guide.origin.x + px(line_indicator_width),
4610 indent_guide.origin.y,
4611 ),
4612 size: size(width, indent_guide.length),
4613 },
4614 color,
4615 ));
4616 }
4617 }
4618 }
4619
4620 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4621 let is_singleton = self.editor.read(cx).is_singleton(cx);
4622
4623 let line_height = layout.position_map.line_height;
4624 window.set_cursor_style(CursorStyle::Arrow, Some(&layout.gutter_hitbox));
4625
4626 for LineNumberLayout {
4627 shaped_line,
4628 hitbox,
4629 } in layout.line_numbers.values()
4630 {
4631 let Some(hitbox) = hitbox else {
4632 continue;
4633 };
4634
4635 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
4636 let color = cx.theme().colors().editor_hover_line_number;
4637
4638 let Some(line) = self
4639 .shape_line_number(shaped_line.text.clone(), color, window)
4640 .log_err()
4641 else {
4642 continue;
4643 };
4644
4645 line.paint(hitbox.origin, line_height, window, cx).log_err()
4646 } else {
4647 shaped_line
4648 .paint(hitbox.origin, line_height, window, cx)
4649 .log_err()
4650 }) else {
4651 continue;
4652 };
4653
4654 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4655 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4656 if is_singleton {
4657 window.set_cursor_style(CursorStyle::IBeam, Some(&hitbox));
4658 } else {
4659 window.set_cursor_style(CursorStyle::PointingHand, Some(&hitbox));
4660 }
4661 }
4662 }
4663
4664 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4665 if layout.display_hunks.is_empty() {
4666 return;
4667 }
4668
4669 let line_height = layout.position_map.line_height;
4670 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4671 for (hunk, hitbox) in &layout.display_hunks {
4672 let hunk_to_paint = match hunk {
4673 DisplayDiffHunk::Folded { .. } => {
4674 let hunk_bounds = Self::diff_hunk_bounds(
4675 &layout.position_map.snapshot,
4676 line_height,
4677 layout.gutter_hitbox.bounds,
4678 &hunk,
4679 );
4680 Some((
4681 hunk_bounds,
4682 cx.theme().colors().version_control_modified,
4683 Corners::all(px(0.)),
4684 DiffHunkStatus::modified_none(),
4685 ))
4686 }
4687 DisplayDiffHunk::Unfolded {
4688 status,
4689 display_row_range,
4690 ..
4691 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
4692 DiffHunkStatusKind::Added => (
4693 hunk_hitbox.bounds,
4694 cx.theme().colors().version_control_added,
4695 Corners::all(px(0.)),
4696 *status,
4697 ),
4698 DiffHunkStatusKind::Modified => (
4699 hunk_hitbox.bounds,
4700 cx.theme().colors().version_control_modified,
4701 Corners::all(px(0.)),
4702 *status,
4703 ),
4704 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
4705 hunk_hitbox.bounds,
4706 cx.theme().colors().version_control_deleted,
4707 Corners::all(px(0.)),
4708 *status,
4709 ),
4710 DiffHunkStatusKind::Deleted => (
4711 Bounds::new(
4712 point(
4713 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4714 hunk_hitbox.origin.y,
4715 ),
4716 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
4717 ),
4718 cx.theme().colors().version_control_deleted,
4719 Corners::all(1. * line_height),
4720 *status,
4721 ),
4722 }),
4723 };
4724
4725 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
4726 // Flatten the background color with the editor color to prevent
4727 // elements below transparent hunks from showing through
4728 let flattened_background_color = cx
4729 .theme()
4730 .colors()
4731 .editor_background
4732 .blend(background_color);
4733
4734 if !Self::diff_hunk_hollow(status, cx) {
4735 window.paint_quad(quad(
4736 hunk_bounds,
4737 corner_radii,
4738 flattened_background_color,
4739 Edges::default(),
4740 transparent_black(),
4741 BorderStyle::default(),
4742 ));
4743 } else {
4744 let flattened_unstaged_background_color = cx
4745 .theme()
4746 .colors()
4747 .editor_background
4748 .blend(background_color.opacity(0.3));
4749
4750 window.paint_quad(quad(
4751 hunk_bounds,
4752 corner_radii,
4753 flattened_unstaged_background_color,
4754 Edges::all(Pixels(1.0)),
4755 flattened_background_color,
4756 BorderStyle::Solid,
4757 ));
4758 }
4759 }
4760 }
4761 });
4762 }
4763
4764 fn gutter_strip_width(line_height: Pixels) -> Pixels {
4765 (0.275 * line_height).floor()
4766 }
4767
4768 fn diff_hunk_bounds(
4769 snapshot: &EditorSnapshot,
4770 line_height: Pixels,
4771 gutter_bounds: Bounds<Pixels>,
4772 hunk: &DisplayDiffHunk,
4773 ) -> Bounds<Pixels> {
4774 let scroll_position = snapshot.scroll_position();
4775 let scroll_top = scroll_position.y * line_height;
4776 let gutter_strip_width = Self::gutter_strip_width(line_height);
4777
4778 match hunk {
4779 DisplayDiffHunk::Folded { display_row, .. } => {
4780 let start_y = display_row.as_f32() * line_height - scroll_top;
4781 let end_y = start_y + line_height;
4782 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4783 let highlight_size = size(gutter_strip_width, end_y - start_y);
4784 Bounds::new(highlight_origin, highlight_size)
4785 }
4786 DisplayDiffHunk::Unfolded {
4787 display_row_range,
4788 status,
4789 ..
4790 } => {
4791 if status.is_deleted() && display_row_range.is_empty() {
4792 let row = display_row_range.start;
4793
4794 let offset = line_height / 2.;
4795 let start_y = row.as_f32() * line_height - offset - scroll_top;
4796 let end_y = start_y + line_height;
4797
4798 let width = (0.35 * line_height).floor();
4799 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4800 let highlight_size = size(width, end_y - start_y);
4801 Bounds::new(highlight_origin, highlight_size)
4802 } else {
4803 let start_row = display_row_range.start;
4804 let end_row = display_row_range.end;
4805 // If we're in a multibuffer, row range span might include an
4806 // excerpt header, so if we were to draw the marker straight away,
4807 // the hunk might include the rows of that header.
4808 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4809 // Instead, we simply check whether the range we're dealing with includes
4810 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4811 let end_row_in_current_excerpt = snapshot
4812 .blocks_in_range(start_row..end_row)
4813 .find_map(|(start_row, block)| {
4814 if matches!(block, Block::ExcerptBoundary { .. }) {
4815 Some(start_row)
4816 } else {
4817 None
4818 }
4819 })
4820 .unwrap_or(end_row);
4821
4822 let start_y = start_row.as_f32() * line_height - scroll_top;
4823 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4824
4825 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4826 let highlight_size = size(gutter_strip_width, end_y - start_y);
4827 Bounds::new(highlight_origin, highlight_size)
4828 }
4829 }
4830 }
4831 }
4832
4833 fn paint_gutter_indicators(
4834 &self,
4835 layout: &mut EditorLayout,
4836 window: &mut Window,
4837 cx: &mut App,
4838 ) {
4839 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4840 window.with_element_namespace("crease_toggles", |window| {
4841 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4842 crease_toggle.paint(window, cx);
4843 }
4844 });
4845
4846 window.with_element_namespace("expand_toggles", |window| {
4847 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
4848 expand_toggle.paint(window, cx);
4849 }
4850 });
4851
4852 for breakpoint in layout.breakpoints.iter_mut() {
4853 breakpoint.paint(window, cx);
4854 }
4855
4856 for test_indicator in layout.test_indicators.iter_mut() {
4857 test_indicator.paint(window, cx);
4858 }
4859
4860 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4861 indicator.paint(window, cx);
4862 }
4863 });
4864 }
4865
4866 fn paint_gutter_highlights(
4867 &self,
4868 layout: &mut EditorLayout,
4869 window: &mut Window,
4870 cx: &mut App,
4871 ) {
4872 for (_, hunk_hitbox) in &layout.display_hunks {
4873 if let Some(hunk_hitbox) = hunk_hitbox {
4874 if !self
4875 .editor
4876 .read(cx)
4877 .buffer()
4878 .read(cx)
4879 .all_diff_hunks_expanded()
4880 {
4881 window.set_cursor_style(CursorStyle::PointingHand, Some(hunk_hitbox));
4882 }
4883 }
4884 }
4885
4886 let show_git_gutter = layout
4887 .position_map
4888 .snapshot
4889 .show_git_diff_gutter
4890 .unwrap_or_else(|| {
4891 matches!(
4892 ProjectSettings::get_global(cx).git.git_gutter,
4893 Some(GitGutterSetting::TrackedFiles)
4894 )
4895 });
4896 if show_git_gutter {
4897 Self::paint_gutter_diff_hunks(layout, window, cx)
4898 }
4899
4900 let highlight_width = 0.275 * layout.position_map.line_height;
4901 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4902 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4903 for (range, color) in &layout.highlighted_gutter_ranges {
4904 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4905 layout.visible_display_row_range.start - DisplayRow(1)
4906 } else {
4907 range.start.row()
4908 };
4909 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4910 layout.visible_display_row_range.end + DisplayRow(1)
4911 } else {
4912 range.end.row()
4913 };
4914
4915 let start_y = layout.gutter_hitbox.top()
4916 + start_row.0 as f32 * layout.position_map.line_height
4917 - layout.position_map.scroll_pixel_position.y;
4918 let end_y = layout.gutter_hitbox.top()
4919 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4920 - layout.position_map.scroll_pixel_position.y;
4921 let bounds = Bounds::from_corners(
4922 point(layout.gutter_hitbox.left(), start_y),
4923 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4924 );
4925 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4926 }
4927 });
4928 }
4929
4930 fn paint_blamed_display_rows(
4931 &self,
4932 layout: &mut EditorLayout,
4933 window: &mut Window,
4934 cx: &mut App,
4935 ) {
4936 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4937 return;
4938 };
4939
4940 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4941 for mut blame_element in blamed_display_rows.into_iter() {
4942 blame_element.paint(window, cx);
4943 }
4944 })
4945 }
4946
4947 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4948 window.with_content_mask(
4949 Some(ContentMask {
4950 bounds: layout.position_map.text_hitbox.bounds,
4951 }),
4952 |window| {
4953 let editor = self.editor.read(cx);
4954 if editor.mouse_cursor_hidden {
4955 window.set_cursor_style(CursorStyle::None, None);
4956 } else if editor
4957 .hovered_link_state
4958 .as_ref()
4959 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4960 {
4961 window.set_cursor_style(
4962 CursorStyle::PointingHand,
4963 Some(&layout.position_map.text_hitbox),
4964 );
4965 } else {
4966 window.set_cursor_style(
4967 CursorStyle::IBeam,
4968 Some(&layout.position_map.text_hitbox),
4969 );
4970 };
4971
4972 self.paint_lines_background(layout, window, cx);
4973 let invisible_display_ranges = self.paint_highlights(layout, window);
4974 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4975 self.paint_redactions(layout, window);
4976 self.paint_cursors(layout, window, cx);
4977 self.paint_inline_diagnostics(layout, window, cx);
4978 self.paint_inline_blame(layout, window, cx);
4979 self.paint_diff_hunk_controls(layout, window, cx);
4980 window.with_element_namespace("crease_trailers", |window| {
4981 for trailer in layout.crease_trailers.iter_mut().flatten() {
4982 trailer.element.paint(window, cx);
4983 }
4984 });
4985 },
4986 )
4987 }
4988
4989 fn paint_highlights(
4990 &mut self,
4991 layout: &mut EditorLayout,
4992 window: &mut Window,
4993 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4994 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4995 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4996 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4997 for (range, color) in &layout.highlighted_ranges {
4998 self.paint_highlighted_range(
4999 range.clone(),
5000 *color,
5001 Pixels::ZERO,
5002 line_end_overshoot,
5003 layout,
5004 window,
5005 );
5006 }
5007
5008 let corner_radius = 0.15 * layout.position_map.line_height;
5009
5010 for (player_color, selections) in &layout.selections {
5011 for selection in selections.iter() {
5012 self.paint_highlighted_range(
5013 selection.range.clone(),
5014 player_color.selection,
5015 corner_radius,
5016 corner_radius * 2.,
5017 layout,
5018 window,
5019 );
5020
5021 if selection.is_local && !selection.range.is_empty() {
5022 invisible_display_ranges.push(selection.range.clone());
5023 }
5024 }
5025 }
5026 invisible_display_ranges
5027 })
5028 }
5029
5030 fn paint_lines(
5031 &mut self,
5032 invisible_display_ranges: &[Range<DisplayPoint>],
5033 layout: &mut EditorLayout,
5034 window: &mut Window,
5035 cx: &mut App,
5036 ) {
5037 let whitespace_setting = self
5038 .editor
5039 .read(cx)
5040 .buffer
5041 .read(cx)
5042 .language_settings(cx)
5043 .show_whitespaces;
5044
5045 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
5046 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
5047 line_with_invisibles.draw(
5048 layout,
5049 row,
5050 layout.content_origin,
5051 whitespace_setting,
5052 invisible_display_ranges,
5053 window,
5054 cx,
5055 )
5056 }
5057
5058 for line_element in &mut layout.line_elements {
5059 line_element.paint(window, cx);
5060 }
5061 }
5062
5063 fn paint_lines_background(
5064 &mut self,
5065 layout: &mut EditorLayout,
5066 window: &mut Window,
5067 cx: &mut App,
5068 ) {
5069 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
5070 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
5071 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
5072 }
5073 }
5074
5075 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
5076 if layout.redacted_ranges.is_empty() {
5077 return;
5078 }
5079
5080 let line_end_overshoot = layout.line_end_overshoot();
5081
5082 // A softer than perfect black
5083 let redaction_color = gpui::rgb(0x0e1111);
5084
5085 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5086 for range in layout.redacted_ranges.iter() {
5087 self.paint_highlighted_range(
5088 range.clone(),
5089 redaction_color.into(),
5090 Pixels::ZERO,
5091 line_end_overshoot,
5092 layout,
5093 window,
5094 );
5095 }
5096 });
5097 }
5098
5099 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5100 for cursor in &mut layout.visible_cursors {
5101 cursor.paint(layout.content_origin, window, cx);
5102 }
5103 }
5104
5105 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5106 let Some(scrollbars_layout) = &layout.scrollbars_layout else {
5107 return;
5108 };
5109
5110 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
5111 let hitbox = &scrollbar_layout.hitbox;
5112 let thumb_bounds = scrollbar_layout.thumb_bounds();
5113
5114 if scrollbars_layout.visible {
5115 let scrollbar_edges = match axis {
5116 ScrollbarAxis::Horizontal => Edges {
5117 top: Pixels::ZERO,
5118 right: Pixels::ZERO,
5119 bottom: Pixels::ZERO,
5120 left: Pixels::ZERO,
5121 },
5122 ScrollbarAxis::Vertical => Edges {
5123 top: Pixels::ZERO,
5124 right: Pixels::ZERO,
5125 bottom: Pixels::ZERO,
5126 left: ScrollbarLayout::BORDER_WIDTH,
5127 },
5128 };
5129
5130 window.paint_layer(hitbox.bounds, |window| {
5131 window.paint_quad(quad(
5132 hitbox.bounds,
5133 Corners::default(),
5134 cx.theme().colors().scrollbar_track_background,
5135 scrollbar_edges,
5136 cx.theme().colors().scrollbar_track_border,
5137 BorderStyle::Solid,
5138 ));
5139
5140 if axis == ScrollbarAxis::Vertical {
5141 let fast_markers =
5142 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
5143 // Refresh slow scrollbar markers in the background. Below, we
5144 // paint whatever markers have already been computed.
5145 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
5146
5147 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
5148 for marker in markers.iter().chain(&fast_markers) {
5149 let mut marker = marker.clone();
5150 marker.bounds.origin += hitbox.origin;
5151 window.paint_quad(marker);
5152 }
5153 }
5154
5155 window.paint_quad(quad(
5156 thumb_bounds,
5157 Corners::default(),
5158 cx.theme().colors().scrollbar_thumb_background,
5159 scrollbar_edges,
5160 cx.theme().colors().scrollbar_thumb_border,
5161 BorderStyle::Solid,
5162 ));
5163 })
5164 }
5165 window.set_cursor_style(CursorStyle::Arrow, Some(&hitbox));
5166 }
5167
5168 window.on_mouse_event({
5169 let editor = self.editor.clone();
5170 let scrollbars_layout = scrollbars_layout.clone();
5171
5172 let mut mouse_position = window.mouse_position();
5173 move |event: &MouseMoveEvent, phase, window, cx| {
5174 if phase == DispatchPhase::Capture {
5175 return;
5176 }
5177
5178 editor.update(cx, |editor, cx| {
5179 if let Some((scrollbar_layout, axis)) = event
5180 .pressed_button
5181 .filter(|button| *button == MouseButton::Left)
5182 .and(editor.scroll_manager.dragging_scrollbar_axis())
5183 .and_then(|axis| {
5184 scrollbars_layout
5185 .iter_scrollbars()
5186 .find(|(_, a)| *a == axis)
5187 })
5188 {
5189 let ScrollbarLayout {
5190 hitbox,
5191 text_unit_size,
5192 ..
5193 } = scrollbar_layout;
5194
5195 let old_position = mouse_position.along(axis);
5196 let new_position = event.position.along(axis);
5197 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
5198 .contains(&old_position)
5199 {
5200 let position = editor.scroll_position(cx).apply_along(axis, |p| {
5201 (p + (new_position - old_position) / *text_unit_size).max(0.)
5202 });
5203 editor.set_scroll_position(position, window, cx);
5204 }
5205 cx.stop_propagation();
5206 } else {
5207 editor.scroll_manager.reset_scrollbar_dragging_state(cx);
5208 }
5209
5210 if scrollbars_layout.get_hovered_axis(window).is_some() {
5211 editor.scroll_manager.show_scrollbars(window, cx);
5212 }
5213
5214 mouse_position = event.position;
5215 })
5216 }
5217 });
5218
5219 if self.editor.read(cx).scroll_manager.any_scrollbar_dragged() {
5220 window.on_mouse_event({
5221 let editor = self.editor.clone();
5222 move |_: &MouseUpEvent, phase, _, cx| {
5223 if phase == DispatchPhase::Capture {
5224 return;
5225 }
5226
5227 editor.update(cx, |editor, cx| {
5228 editor.scroll_manager.reset_scrollbar_dragging_state(cx);
5229 cx.stop_propagation();
5230 });
5231 }
5232 });
5233 } else {
5234 window.on_mouse_event({
5235 let editor = self.editor.clone();
5236 let scrollbars_layout = scrollbars_layout.clone();
5237
5238 move |event: &MouseDownEvent, phase, window, cx| {
5239 if phase == DispatchPhase::Capture {
5240 return;
5241 }
5242 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
5243 else {
5244 return;
5245 };
5246
5247 let ScrollbarLayout {
5248 hitbox,
5249 visible_range,
5250 text_unit_size,
5251 ..
5252 } = scrollbar_layout;
5253
5254 let thumb_bounds = scrollbar_layout.thumb_bounds();
5255
5256 editor.update(cx, |editor, cx| {
5257 editor.scroll_manager.set_dragged_scrollbar_axis(axis, cx);
5258
5259 let event_position = event.position.along(axis);
5260
5261 if event_position < thumb_bounds.origin.along(axis)
5262 || thumb_bounds.bottom_right().along(axis) < event_position
5263 {
5264 let center_position = ((event_position - hitbox.origin.along(axis))
5265 / *text_unit_size)
5266 .round() as u32;
5267 let start_position = center_position.saturating_sub(
5268 (visible_range.end - visible_range.start) as u32 / 2,
5269 );
5270
5271 let position = editor
5272 .scroll_position(cx)
5273 .apply_along(axis, |_| start_position as f32);
5274
5275 editor.set_scroll_position(position, window, cx);
5276 } else {
5277 editor.scroll_manager.show_scrollbars(window, cx);
5278 }
5279
5280 cx.stop_propagation();
5281 });
5282 }
5283 });
5284 }
5285 }
5286
5287 fn collect_fast_scrollbar_markers(
5288 &self,
5289 layout: &EditorLayout,
5290 scrollbar_layout: &ScrollbarLayout,
5291 cx: &mut App,
5292 ) -> Vec<PaintQuad> {
5293 const LIMIT: usize = 100;
5294 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5295 return vec![];
5296 }
5297 let cursor_ranges = layout
5298 .cursors
5299 .iter()
5300 .map(|(point, color)| ColoredRange {
5301 start: point.row(),
5302 end: point.row(),
5303 color: *color,
5304 })
5305 .collect_vec();
5306 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5307 }
5308
5309 fn refresh_slow_scrollbar_markers(
5310 &self,
5311 layout: &EditorLayout,
5312 scrollbar_layout: &ScrollbarLayout,
5313 window: &mut Window,
5314 cx: &mut App,
5315 ) {
5316 self.editor.update(cx, |editor, cx| {
5317 if !editor.is_singleton(cx)
5318 || !editor
5319 .scrollbar_marker_state
5320 .should_refresh(scrollbar_layout.hitbox.size)
5321 {
5322 return;
5323 }
5324
5325 let scrollbar_layout = scrollbar_layout.clone();
5326 let background_highlights = editor.background_highlights.clone();
5327 let snapshot = layout.position_map.snapshot.clone();
5328 let theme = cx.theme().clone();
5329 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5330
5331 editor.scrollbar_marker_state.dirty = false;
5332 editor.scrollbar_marker_state.pending_refresh =
5333 Some(cx.spawn_in(window, async move |editor, cx| {
5334 let scrollbar_size = scrollbar_layout.hitbox.size;
5335 let scrollbar_markers = cx
5336 .background_spawn(async move {
5337 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5338 let mut marker_quads = Vec::new();
5339 if scrollbar_settings.git_diff {
5340 let marker_row_ranges =
5341 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5342 let start_display_row =
5343 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5344 .to_display_point(&snapshot.display_snapshot)
5345 .row();
5346 let mut end_display_row =
5347 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5348 .to_display_point(&snapshot.display_snapshot)
5349 .row();
5350 if end_display_row != start_display_row {
5351 end_display_row.0 -= 1;
5352 }
5353 let color = match &hunk.status().kind {
5354 DiffHunkStatusKind::Added => {
5355 theme.colors().version_control_added
5356 }
5357 DiffHunkStatusKind::Modified => {
5358 theme.colors().version_control_modified
5359 }
5360 DiffHunkStatusKind::Deleted => {
5361 theme.colors().version_control_deleted
5362 }
5363 };
5364 ColoredRange {
5365 start: start_display_row,
5366 end: end_display_row,
5367 color,
5368 }
5369 });
5370
5371 marker_quads.extend(
5372 scrollbar_layout
5373 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5374 );
5375 }
5376
5377 for (background_highlight_id, (_, background_ranges)) in
5378 background_highlights.iter()
5379 {
5380 let is_search_highlights = *background_highlight_id
5381 == TypeId::of::<BufferSearchHighlights>();
5382 let is_text_highlights = *background_highlight_id
5383 == TypeId::of::<SelectedTextHighlight>();
5384 let is_symbol_occurrences = *background_highlight_id
5385 == TypeId::of::<DocumentHighlightRead>()
5386 || *background_highlight_id
5387 == TypeId::of::<DocumentHighlightWrite>();
5388 if (is_search_highlights && scrollbar_settings.search_results)
5389 || (is_text_highlights && scrollbar_settings.selected_text)
5390 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5391 {
5392 let mut color = theme.status().info;
5393 if is_symbol_occurrences {
5394 color.fade_out(0.5);
5395 }
5396 let marker_row_ranges = background_ranges.iter().map(|range| {
5397 let display_start = range
5398 .start
5399 .to_display_point(&snapshot.display_snapshot);
5400 let display_end =
5401 range.end.to_display_point(&snapshot.display_snapshot);
5402 ColoredRange {
5403 start: display_start.row(),
5404 end: display_end.row(),
5405 color,
5406 }
5407 });
5408 marker_quads.extend(
5409 scrollbar_layout
5410 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5411 );
5412 }
5413 }
5414
5415 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5416 let diagnostics = snapshot
5417 .buffer_snapshot
5418 .diagnostics_in_range::<Point>(Point::zero()..max_point)
5419 // Don't show diagnostics the user doesn't care about
5420 .filter(|diagnostic| {
5421 match (
5422 scrollbar_settings.diagnostics,
5423 diagnostic.diagnostic.severity,
5424 ) {
5425 (ScrollbarDiagnostics::All, _) => true,
5426 (
5427 ScrollbarDiagnostics::Error,
5428 DiagnosticSeverity::ERROR,
5429 ) => true,
5430 (
5431 ScrollbarDiagnostics::Warning,
5432 DiagnosticSeverity::ERROR
5433 | DiagnosticSeverity::WARNING,
5434 ) => true,
5435 (
5436 ScrollbarDiagnostics::Information,
5437 DiagnosticSeverity::ERROR
5438 | DiagnosticSeverity::WARNING
5439 | DiagnosticSeverity::INFORMATION,
5440 ) => true,
5441 (_, _) => false,
5442 }
5443 })
5444 // We want to sort by severity, in order to paint the most severe diagnostics last.
5445 .sorted_by_key(|diagnostic| {
5446 std::cmp::Reverse(diagnostic.diagnostic.severity)
5447 });
5448
5449 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5450 let start_display = diagnostic
5451 .range
5452 .start
5453 .to_display_point(&snapshot.display_snapshot);
5454 let end_display = diagnostic
5455 .range
5456 .end
5457 .to_display_point(&snapshot.display_snapshot);
5458 let color = match diagnostic.diagnostic.severity {
5459 DiagnosticSeverity::ERROR => theme.status().error,
5460 DiagnosticSeverity::WARNING => theme.status().warning,
5461 DiagnosticSeverity::INFORMATION => theme.status().info,
5462 _ => theme.status().hint,
5463 };
5464 ColoredRange {
5465 start: start_display.row(),
5466 end: end_display.row(),
5467 color,
5468 }
5469 });
5470 marker_quads.extend(
5471 scrollbar_layout
5472 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5473 );
5474 }
5475
5476 Arc::from(marker_quads)
5477 })
5478 .await;
5479
5480 editor.update(cx, |editor, cx| {
5481 editor.scrollbar_marker_state.markers = scrollbar_markers;
5482 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5483 editor.scrollbar_marker_state.pending_refresh = None;
5484 cx.notify();
5485 })?;
5486
5487 Ok(())
5488 }));
5489 });
5490 }
5491
5492 fn paint_highlighted_range(
5493 &self,
5494 range: Range<DisplayPoint>,
5495 color: Hsla,
5496 corner_radius: Pixels,
5497 line_end_overshoot: Pixels,
5498 layout: &EditorLayout,
5499 window: &mut Window,
5500 ) {
5501 let start_row = layout.visible_display_row_range.start;
5502 let end_row = layout.visible_display_row_range.end;
5503 if range.start != range.end {
5504 let row_range = if range.end.column() == 0 {
5505 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5506 } else {
5507 cmp::max(range.start.row(), start_row)
5508 ..cmp::min(range.end.row().next_row(), end_row)
5509 };
5510
5511 let highlighted_range = HighlightedRange {
5512 color,
5513 line_height: layout.position_map.line_height,
5514 corner_radius,
5515 start_y: layout.content_origin.y
5516 + row_range.start.as_f32() * layout.position_map.line_height
5517 - layout.position_map.scroll_pixel_position.y,
5518 lines: row_range
5519 .iter_rows()
5520 .map(|row| {
5521 let line_layout =
5522 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5523 HighlightedRangeLine {
5524 start_x: if row == range.start.row() {
5525 layout.content_origin.x
5526 + line_layout.x_for_index(range.start.column() as usize)
5527 - layout.position_map.scroll_pixel_position.x
5528 } else {
5529 layout.content_origin.x
5530 - layout.position_map.scroll_pixel_position.x
5531 },
5532 end_x: if row == range.end.row() {
5533 layout.content_origin.x
5534 + line_layout.x_for_index(range.end.column() as usize)
5535 - layout.position_map.scroll_pixel_position.x
5536 } else {
5537 layout.content_origin.x + line_layout.width + line_end_overshoot
5538 - layout.position_map.scroll_pixel_position.x
5539 },
5540 }
5541 })
5542 .collect(),
5543 };
5544
5545 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5546 }
5547 }
5548
5549 fn paint_inline_diagnostics(
5550 &mut self,
5551 layout: &mut EditorLayout,
5552 window: &mut Window,
5553 cx: &mut App,
5554 ) {
5555 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
5556 inline_diagnostic.1.paint(window, cx);
5557 }
5558 }
5559
5560 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5561 if let Some(mut inline_blame) = layout.inline_blame.take() {
5562 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5563 inline_blame.paint(window, cx);
5564 })
5565 }
5566 }
5567
5568 fn paint_diff_hunk_controls(
5569 &mut self,
5570 layout: &mut EditorLayout,
5571 window: &mut Window,
5572 cx: &mut App,
5573 ) {
5574 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5575 diff_hunk_control.paint(window, cx);
5576 }
5577 }
5578
5579 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5580 for mut block in layout.blocks.drain(..) {
5581 if block.overlaps_gutter {
5582 block.element.paint(window, cx);
5583 } else {
5584 let mut bounds = layout.hitbox.bounds;
5585 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
5586 window.with_content_mask(Some(ContentMask { bounds }), |window| {
5587 block.element.paint(window, cx);
5588 })
5589 }
5590 }
5591 }
5592
5593 fn paint_inline_completion_popover(
5594 &mut self,
5595 layout: &mut EditorLayout,
5596 window: &mut Window,
5597 cx: &mut App,
5598 ) {
5599 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5600 inline_completion_popover.paint(window, cx);
5601 }
5602 }
5603
5604 fn paint_mouse_context_menu(
5605 &mut self,
5606 layout: &mut EditorLayout,
5607 window: &mut Window,
5608 cx: &mut App,
5609 ) {
5610 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5611 mouse_context_menu.paint(window, cx);
5612 }
5613 }
5614
5615 fn paint_scroll_wheel_listener(
5616 &mut self,
5617 layout: &EditorLayout,
5618 window: &mut Window,
5619 cx: &mut App,
5620 ) {
5621 window.on_mouse_event({
5622 let position_map = layout.position_map.clone();
5623 let editor = self.editor.clone();
5624 let hitbox = layout.hitbox.clone();
5625 let mut delta = ScrollDelta::default();
5626
5627 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5628 // accidentally turn off their scrolling.
5629 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5630
5631 move |event: &ScrollWheelEvent, phase, window, cx| {
5632 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5633 delta = delta.coalesce(event.delta);
5634 editor.update(cx, |editor, cx| {
5635 let position_map: &PositionMap = &position_map;
5636
5637 let line_height = position_map.line_height;
5638 let max_glyph_width = position_map.em_width;
5639 let (delta, axis) = match delta {
5640 gpui::ScrollDelta::Pixels(mut pixels) => {
5641 //Trackpad
5642 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5643 (pixels, axis)
5644 }
5645
5646 gpui::ScrollDelta::Lines(lines) => {
5647 //Not trackpad
5648 let pixels =
5649 point(lines.x * max_glyph_width, lines.y * line_height);
5650 (pixels, None)
5651 }
5652 };
5653
5654 let current_scroll_position = position_map.snapshot.scroll_position();
5655 let x = (current_scroll_position.x * max_glyph_width
5656 - (delta.x * scroll_sensitivity))
5657 / max_glyph_width;
5658 let y = (current_scroll_position.y * line_height
5659 - (delta.y * scroll_sensitivity))
5660 / line_height;
5661 let mut scroll_position =
5662 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5663 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5664 if forbid_vertical_scroll {
5665 scroll_position.y = current_scroll_position.y;
5666 }
5667
5668 if scroll_position != current_scroll_position {
5669 editor.scroll(scroll_position, axis, window, cx);
5670 cx.stop_propagation();
5671 } else if y < 0. {
5672 // Due to clamping, we may fail to detect cases of overscroll to the top;
5673 // We want the scroll manager to get an update in such cases and detect the change of direction
5674 // on the next frame.
5675 cx.notify();
5676 }
5677 });
5678 }
5679 }
5680 });
5681 }
5682
5683 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5684 self.paint_scroll_wheel_listener(layout, window, cx);
5685
5686 window.on_mouse_event({
5687 let position_map = layout.position_map.clone();
5688 let editor = self.editor.clone();
5689 let diff_hunk_range =
5690 layout
5691 .display_hunks
5692 .iter()
5693 .find_map(|(hunk, hunk_hitbox)| match hunk {
5694 DisplayDiffHunk::Folded { .. } => None,
5695 DisplayDiffHunk::Unfolded {
5696 multi_buffer_range, ..
5697 } => {
5698 if hunk_hitbox
5699 .as_ref()
5700 .map(|hitbox| hitbox.is_hovered(window))
5701 .unwrap_or(false)
5702 {
5703 Some(multi_buffer_range.clone())
5704 } else {
5705 None
5706 }
5707 }
5708 });
5709 let line_numbers = layout.line_numbers.clone();
5710
5711 move |event: &MouseDownEvent, phase, window, cx| {
5712 if phase == DispatchPhase::Bubble {
5713 match event.button {
5714 MouseButton::Left => editor.update(cx, |editor, cx| {
5715 let pending_mouse_down = editor
5716 .pending_mouse_down
5717 .get_or_insert_with(Default::default)
5718 .clone();
5719
5720 *pending_mouse_down.borrow_mut() = Some(event.clone());
5721
5722 Self::mouse_left_down(
5723 editor,
5724 event,
5725 diff_hunk_range.clone(),
5726 &position_map,
5727 line_numbers.as_ref(),
5728 window,
5729 cx,
5730 );
5731 }),
5732 MouseButton::Right => editor.update(cx, |editor, cx| {
5733 Self::mouse_right_down(editor, event, &position_map, window, cx);
5734 }),
5735 MouseButton::Middle => editor.update(cx, |editor, cx| {
5736 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5737 }),
5738 _ => {}
5739 };
5740 }
5741 }
5742 });
5743
5744 window.on_mouse_event({
5745 let editor = self.editor.clone();
5746 let position_map = layout.position_map.clone();
5747
5748 move |event: &MouseUpEvent, phase, window, cx| {
5749 if phase == DispatchPhase::Bubble {
5750 editor.update(cx, |editor, cx| {
5751 Self::mouse_up(editor, event, &position_map, window, cx)
5752 });
5753 }
5754 }
5755 });
5756
5757 window.on_mouse_event({
5758 let editor = self.editor.clone();
5759 let position_map = layout.position_map.clone();
5760 let mut captured_mouse_down = None;
5761
5762 move |event: &MouseUpEvent, phase, window, cx| match phase {
5763 // Clear the pending mouse down during the capture phase,
5764 // so that it happens even if another event handler stops
5765 // propagation.
5766 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5767 let pending_mouse_down = editor
5768 .pending_mouse_down
5769 .get_or_insert_with(Default::default)
5770 .clone();
5771
5772 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5773 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5774 captured_mouse_down = pending_mouse_down.take();
5775 window.refresh();
5776 }
5777 }),
5778 // Fire click handlers during the bubble phase.
5779 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5780 if let Some(mouse_down) = captured_mouse_down.take() {
5781 let event = ClickEvent {
5782 down: mouse_down,
5783 up: event.clone(),
5784 };
5785 Self::click(editor, &event, &position_map, window, cx);
5786 }
5787 }),
5788 }
5789 });
5790
5791 window.on_mouse_event({
5792 let position_map = layout.position_map.clone();
5793 let editor = self.editor.clone();
5794
5795 move |event: &MouseMoveEvent, phase, window, cx| {
5796 if phase == DispatchPhase::Bubble {
5797 editor.update(cx, |editor, cx| {
5798 if editor.hover_state.focused(window, cx) {
5799 return;
5800 }
5801 if event.pressed_button == Some(MouseButton::Left)
5802 || event.pressed_button == Some(MouseButton::Middle)
5803 {
5804 Self::mouse_dragged(editor, event, &position_map, window, cx)
5805 }
5806
5807 Self::mouse_moved(editor, event, &position_map, window, cx)
5808 });
5809 }
5810 }
5811 });
5812 }
5813
5814 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5815 bounds.top_right().x - self.style.scrollbar_width
5816 }
5817
5818 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5819 let style = &self.style;
5820 let font_size = style.text.font_size.to_pixels(window.rem_size());
5821 let layout = window
5822 .text_system()
5823 .shape_line(
5824 SharedString::from(" ".repeat(column)),
5825 font_size,
5826 &[TextRun {
5827 len: column,
5828 font: style.text.font(),
5829 color: Hsla::default(),
5830 background_color: None,
5831 underline: None,
5832 strikethrough: None,
5833 }],
5834 )
5835 .unwrap();
5836
5837 layout.width
5838 }
5839
5840 fn max_line_number_width(
5841 &self,
5842 snapshot: &EditorSnapshot,
5843 window: &mut Window,
5844 cx: &mut App,
5845 ) -> Pixels {
5846 let digit_count = snapshot.widest_line_number().ilog10() + 1;
5847 self.column_pixels(digit_count as usize, window, cx)
5848 }
5849
5850 fn shape_line_number(
5851 &self,
5852 text: SharedString,
5853 color: Hsla,
5854 window: &mut Window,
5855 ) -> anyhow::Result<ShapedLine> {
5856 let run = TextRun {
5857 len: text.len(),
5858 font: self.style.text.font(),
5859 color,
5860 background_color: None,
5861 underline: None,
5862 strikethrough: None,
5863 };
5864 window.text_system().shape_line(
5865 text,
5866 self.style.text.font_size.to_pixels(window.rem_size()),
5867 &[run],
5868 )
5869 }
5870
5871 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
5872 let unstaged = status.has_secondary_hunk();
5873 let unstaged_hollow = ProjectSettings::get_global(cx)
5874 .git
5875 .hunk_style
5876 .map_or(false, |style| {
5877 matches!(style, GitHunkStyleSetting::UnstagedHollow)
5878 });
5879
5880 unstaged == unstaged_hollow
5881 }
5882}
5883
5884fn header_jump_data(
5885 snapshot: &EditorSnapshot,
5886 block_row_start: DisplayRow,
5887 height: u32,
5888 for_excerpt: &ExcerptInfo,
5889) -> JumpData {
5890 let range = &for_excerpt.range;
5891 let buffer = &for_excerpt.buffer;
5892 let jump_anchor = range.primary.start;
5893
5894 let excerpt_start = range.context.start;
5895 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5896 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5897 0
5898 } else {
5899 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5900 jump_position.row.saturating_sub(excerpt_start_point.row)
5901 };
5902
5903 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5904 .saturating_sub(
5905 snapshot
5906 .scroll_anchor
5907 .scroll_position(&snapshot.display_snapshot)
5908 .y as u32,
5909 );
5910
5911 JumpData::MultiBufferPoint {
5912 excerpt_id: for_excerpt.id,
5913 anchor: jump_anchor,
5914 position: jump_position,
5915 line_offset_from_top,
5916 }
5917}
5918
5919pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
5920
5921impl AcceptEditPredictionBinding {
5922 pub fn keystroke(&self) -> Option<&Keystroke> {
5923 if let Some(binding) = self.0.as_ref() {
5924 match &binding.keystrokes() {
5925 [keystroke] => Some(keystroke),
5926 _ => None,
5927 }
5928 } else {
5929 None
5930 }
5931 }
5932}
5933
5934fn prepaint_gutter_button(
5935 button: IconButton,
5936 row: DisplayRow,
5937 line_height: Pixels,
5938 gutter_dimensions: &GutterDimensions,
5939 scroll_pixel_position: gpui::Point<Pixels>,
5940 gutter_hitbox: &Hitbox,
5941 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5942 window: &mut Window,
5943 cx: &mut App,
5944) -> AnyElement {
5945 let mut button = button.into_any_element();
5946
5947 let available_space = size(
5948 AvailableSpace::MinContent,
5949 AvailableSpace::Definite(line_height),
5950 );
5951 let indicator_size = button.layout_as_root(available_space, window, cx);
5952
5953 let blame_width = gutter_dimensions.git_blame_entries_width;
5954 let gutter_width = display_hunks
5955 .binary_search_by(|(hunk, _)| match hunk {
5956 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
5957 DisplayDiffHunk::Unfolded {
5958 display_row_range, ..
5959 } => {
5960 if display_row_range.end <= row {
5961 Ordering::Less
5962 } else if display_row_range.start > row {
5963 Ordering::Greater
5964 } else {
5965 Ordering::Equal
5966 }
5967 }
5968 })
5969 .ok()
5970 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
5971 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5972
5973 let mut x = left_offset;
5974 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5975 - indicator_size.width
5976 - left_offset;
5977 x += available_width / 2.;
5978
5979 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5980 y += (line_height - indicator_size.height) / 2.;
5981
5982 button.prepaint_as_root(
5983 gutter_hitbox.origin + point(x, y),
5984 available_space,
5985 window,
5986 cx,
5987 );
5988 button
5989}
5990
5991fn render_inline_blame_entry(
5992 blame_entry: BlameEntry,
5993 style: &EditorStyle,
5994 cx: &mut App,
5995) -> Option<AnyElement> {
5996 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
5997 renderer.render_inline_blame_entry(&style.text, blame_entry, cx)
5998}
5999
6000fn render_blame_entry_popover(
6001 blame_entry: BlameEntry,
6002 scroll_handle: ScrollHandle,
6003 commit_message: Option<ParsedCommitMessage>,
6004 markdown: Entity<Markdown>,
6005 workspace: WeakEntity<Workspace>,
6006 blame: &Entity<GitBlame>,
6007 window: &mut Window,
6008 cx: &mut App,
6009) -> Option<AnyElement> {
6010 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
6011 let blame = blame.read(cx);
6012 let repository = blame.repository(cx)?.clone();
6013 renderer.render_blame_entry_popover(
6014 blame_entry,
6015 scroll_handle,
6016 commit_message,
6017 markdown,
6018 repository,
6019 workspace,
6020 window,
6021 cx,
6022 )
6023}
6024
6025fn render_blame_entry(
6026 ix: usize,
6027 blame: &Entity<GitBlame>,
6028 blame_entry: BlameEntry,
6029 style: &EditorStyle,
6030 last_used_color: &mut Option<(PlayerColor, Oid)>,
6031 editor: Entity<Editor>,
6032 workspace: Entity<Workspace>,
6033 renderer: Arc<dyn BlameRenderer>,
6034 cx: &mut App,
6035) -> Option<AnyElement> {
6036 let mut sha_color = cx
6037 .theme()
6038 .players()
6039 .color_for_participant(blame_entry.sha.into());
6040
6041 // If the last color we used is the same as the one we get for this line, but
6042 // the commit SHAs are different, then we try again to get a different color.
6043 match *last_used_color {
6044 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
6045 let index: u32 = blame_entry.sha.into();
6046 sha_color = cx.theme().players().color_for_participant(index + 1);
6047 }
6048 _ => {}
6049 };
6050 last_used_color.replace((sha_color, blame_entry.sha));
6051
6052 let blame = blame.read(cx);
6053 let details = blame.details_for_entry(&blame_entry);
6054 let repository = blame.repository(cx)?;
6055 renderer.render_blame_entry(
6056 &style.text,
6057 blame_entry,
6058 details,
6059 repository,
6060 workspace.downgrade(),
6061 editor,
6062 ix,
6063 sha_color.cursor,
6064 cx,
6065 )
6066}
6067
6068#[derive(Debug)]
6069pub(crate) struct LineWithInvisibles {
6070 fragments: SmallVec<[LineFragment; 1]>,
6071 invisibles: Vec<Invisible>,
6072 len: usize,
6073 pub(crate) width: Pixels,
6074 font_size: Pixels,
6075}
6076
6077#[allow(clippy::large_enum_variant)]
6078enum LineFragment {
6079 Text(ShapedLine),
6080 Element {
6081 id: FoldId,
6082 element: Option<AnyElement>,
6083 size: Size<Pixels>,
6084 len: usize,
6085 },
6086}
6087
6088impl fmt::Debug for LineFragment {
6089 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
6090 match self {
6091 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
6092 LineFragment::Element { size, len, .. } => f
6093 .debug_struct("Element")
6094 .field("size", size)
6095 .field("len", len)
6096 .finish(),
6097 }
6098 }
6099}
6100
6101impl LineWithInvisibles {
6102 fn from_chunks<'a>(
6103 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
6104 editor_style: &EditorStyle,
6105 max_line_len: usize,
6106 max_line_count: usize,
6107 editor_mode: EditorMode,
6108 text_width: Pixels,
6109 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
6110 window: &mut Window,
6111 cx: &mut App,
6112 ) -> Vec<Self> {
6113 let text_style = &editor_style.text;
6114 let mut layouts = Vec::with_capacity(max_line_count);
6115 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
6116 let mut line = String::new();
6117 let mut invisibles = Vec::new();
6118 let mut width = Pixels::ZERO;
6119 let mut len = 0;
6120 let mut styles = Vec::new();
6121 let mut non_whitespace_added = false;
6122 let mut row = 0;
6123 let mut line_exceeded_max_len = false;
6124 let font_size = text_style.font_size.to_pixels(window.rem_size());
6125
6126 let ellipsis = SharedString::from("⋯");
6127
6128 for highlighted_chunk in chunks.chain([HighlightedChunk {
6129 text: "\n",
6130 style: None,
6131 is_tab: false,
6132 replacement: None,
6133 }]) {
6134 if let Some(replacement) = highlighted_chunk.replacement {
6135 if !line.is_empty() {
6136 let shaped_line = window
6137 .text_system()
6138 .shape_line(line.clone().into(), font_size, &styles)
6139 .unwrap();
6140 width += shaped_line.width;
6141 len += shaped_line.len;
6142 fragments.push(LineFragment::Text(shaped_line));
6143 line.clear();
6144 styles.clear();
6145 }
6146
6147 match replacement {
6148 ChunkReplacement::Renderer(renderer) => {
6149 let available_width = if renderer.constrain_width {
6150 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
6151 ellipsis.clone()
6152 } else {
6153 SharedString::from(Arc::from(highlighted_chunk.text))
6154 };
6155 let shaped_line = window
6156 .text_system()
6157 .shape_line(
6158 chunk,
6159 font_size,
6160 &[text_style.to_run(highlighted_chunk.text.len())],
6161 )
6162 .unwrap();
6163 AvailableSpace::Definite(shaped_line.width)
6164 } else {
6165 AvailableSpace::MinContent
6166 };
6167
6168 let mut element = (renderer.render)(&mut ChunkRendererContext {
6169 context: cx,
6170 window,
6171 max_width: text_width,
6172 });
6173 let line_height = text_style.line_height_in_pixels(window.rem_size());
6174 let size = element.layout_as_root(
6175 size(available_width, AvailableSpace::Definite(line_height)),
6176 window,
6177 cx,
6178 );
6179
6180 width += size.width;
6181 len += highlighted_chunk.text.len();
6182 fragments.push(LineFragment::Element {
6183 id: renderer.id,
6184 element: Some(element),
6185 size,
6186 len: highlighted_chunk.text.len(),
6187 });
6188 }
6189 ChunkReplacement::Str(x) => {
6190 let text_style = if let Some(style) = highlighted_chunk.style {
6191 Cow::Owned(text_style.clone().highlight(style))
6192 } else {
6193 Cow::Borrowed(text_style)
6194 };
6195
6196 let run = TextRun {
6197 len: x.len(),
6198 font: text_style.font(),
6199 color: text_style.color,
6200 background_color: text_style.background_color,
6201 underline: text_style.underline,
6202 strikethrough: text_style.strikethrough,
6203 };
6204 let line_layout = window
6205 .text_system()
6206 .shape_line(x, font_size, &[run])
6207 .unwrap()
6208 .with_len(highlighted_chunk.text.len());
6209
6210 width += line_layout.width;
6211 len += highlighted_chunk.text.len();
6212 fragments.push(LineFragment::Text(line_layout))
6213 }
6214 }
6215 } else {
6216 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6217 if ix > 0 {
6218 let shaped_line = window
6219 .text_system()
6220 .shape_line(line.clone().into(), font_size, &styles)
6221 .unwrap();
6222 width += shaped_line.width;
6223 len += shaped_line.len;
6224 fragments.push(LineFragment::Text(shaped_line));
6225 layouts.push(Self {
6226 width: mem::take(&mut width),
6227 len: mem::take(&mut len),
6228 fragments: mem::take(&mut fragments),
6229 invisibles: std::mem::take(&mut invisibles),
6230 font_size,
6231 });
6232
6233 line.clear();
6234 styles.clear();
6235 row += 1;
6236 line_exceeded_max_len = false;
6237 non_whitespace_added = false;
6238 if row == max_line_count {
6239 return layouts;
6240 }
6241 }
6242
6243 if !line_chunk.is_empty() && !line_exceeded_max_len {
6244 let text_style = if let Some(style) = highlighted_chunk.style {
6245 Cow::Owned(text_style.clone().highlight(style))
6246 } else {
6247 Cow::Borrowed(text_style)
6248 };
6249
6250 if line.len() + line_chunk.len() > max_line_len {
6251 let mut chunk_len = max_line_len - line.len();
6252 while !line_chunk.is_char_boundary(chunk_len) {
6253 chunk_len -= 1;
6254 }
6255 line_chunk = &line_chunk[..chunk_len];
6256 line_exceeded_max_len = true;
6257 }
6258
6259 styles.push(TextRun {
6260 len: line_chunk.len(),
6261 font: text_style.font(),
6262 color: text_style.color,
6263 background_color: text_style.background_color,
6264 underline: text_style.underline,
6265 strikethrough: text_style.strikethrough,
6266 });
6267
6268 if editor_mode.is_full() {
6269 // Line wrap pads its contents with fake whitespaces,
6270 // avoid printing them
6271 let is_soft_wrapped = is_row_soft_wrapped(row);
6272 if highlighted_chunk.is_tab {
6273 if non_whitespace_added || !is_soft_wrapped {
6274 invisibles.push(Invisible::Tab {
6275 line_start_offset: line.len(),
6276 line_end_offset: line.len() + line_chunk.len(),
6277 });
6278 }
6279 } else {
6280 invisibles.extend(line_chunk.char_indices().filter_map(
6281 |(index, c)| {
6282 let is_whitespace = c.is_whitespace();
6283 non_whitespace_added |= !is_whitespace;
6284 if is_whitespace
6285 && (non_whitespace_added || !is_soft_wrapped)
6286 {
6287 Some(Invisible::Whitespace {
6288 line_offset: line.len() + index,
6289 })
6290 } else {
6291 None
6292 }
6293 },
6294 ))
6295 }
6296 }
6297
6298 line.push_str(line_chunk);
6299 }
6300 }
6301 }
6302 }
6303
6304 layouts
6305 }
6306
6307 fn prepaint(
6308 &mut self,
6309 line_height: Pixels,
6310 scroll_pixel_position: gpui::Point<Pixels>,
6311 row: DisplayRow,
6312 content_origin: gpui::Point<Pixels>,
6313 line_elements: &mut SmallVec<[AnyElement; 1]>,
6314 window: &mut Window,
6315 cx: &mut App,
6316 ) {
6317 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6318 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6319 for fragment in &mut self.fragments {
6320 match fragment {
6321 LineFragment::Text(line) => {
6322 fragment_origin.x += line.width;
6323 }
6324 LineFragment::Element { element, size, .. } => {
6325 let mut element = element
6326 .take()
6327 .expect("you can't prepaint LineWithInvisibles twice");
6328
6329 // Center the element vertically within the line.
6330 let mut element_origin = fragment_origin;
6331 element_origin.y += (line_height - size.height) / 2.;
6332 element.prepaint_at(element_origin, window, cx);
6333 line_elements.push(element);
6334
6335 fragment_origin.x += size.width;
6336 }
6337 }
6338 }
6339 }
6340
6341 fn draw(
6342 &self,
6343 layout: &EditorLayout,
6344 row: DisplayRow,
6345 content_origin: gpui::Point<Pixels>,
6346 whitespace_setting: ShowWhitespaceSetting,
6347 selection_ranges: &[Range<DisplayPoint>],
6348 window: &mut Window,
6349 cx: &mut App,
6350 ) {
6351 let line_height = layout.position_map.line_height;
6352 let line_y = line_height
6353 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6354
6355 let mut fragment_origin =
6356 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6357
6358 for fragment in &self.fragments {
6359 match fragment {
6360 LineFragment::Text(line) => {
6361 line.paint(fragment_origin, line_height, window, cx)
6362 .log_err();
6363 fragment_origin.x += line.width;
6364 }
6365 LineFragment::Element { size, .. } => {
6366 fragment_origin.x += size.width;
6367 }
6368 }
6369 }
6370
6371 self.draw_invisibles(
6372 selection_ranges,
6373 layout,
6374 content_origin,
6375 line_y,
6376 row,
6377 line_height,
6378 whitespace_setting,
6379 window,
6380 cx,
6381 );
6382 }
6383
6384 fn draw_background(
6385 &self,
6386 layout: &EditorLayout,
6387 row: DisplayRow,
6388 content_origin: gpui::Point<Pixels>,
6389 window: &mut Window,
6390 cx: &mut App,
6391 ) {
6392 let line_height = layout.position_map.line_height;
6393 let line_y = line_height
6394 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6395
6396 let mut fragment_origin =
6397 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6398
6399 for fragment in &self.fragments {
6400 match fragment {
6401 LineFragment::Text(line) => {
6402 line.paint_background(fragment_origin, line_height, window, cx)
6403 .log_err();
6404 fragment_origin.x += line.width;
6405 }
6406 LineFragment::Element { size, .. } => {
6407 fragment_origin.x += size.width;
6408 }
6409 }
6410 }
6411 }
6412
6413 fn draw_invisibles(
6414 &self,
6415 selection_ranges: &[Range<DisplayPoint>],
6416 layout: &EditorLayout,
6417 content_origin: gpui::Point<Pixels>,
6418 line_y: Pixels,
6419 row: DisplayRow,
6420 line_height: Pixels,
6421 whitespace_setting: ShowWhitespaceSetting,
6422 window: &mut Window,
6423 cx: &mut App,
6424 ) {
6425 let extract_whitespace_info = |invisible: &Invisible| {
6426 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6427 Invisible::Tab {
6428 line_start_offset,
6429 line_end_offset,
6430 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6431 Invisible::Whitespace { line_offset } => {
6432 (*line_offset, line_offset + 1, &layout.space_invisible)
6433 }
6434 };
6435
6436 let x_offset = self.x_for_index(token_offset);
6437 let invisible_offset =
6438 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6439 let origin = content_origin
6440 + gpui::point(
6441 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6442 line_y,
6443 );
6444
6445 (
6446 [token_offset, token_end_offset],
6447 Box::new(move |window: &mut Window, cx: &mut App| {
6448 invisible_symbol
6449 .paint(origin, line_height, window, cx)
6450 .log_err();
6451 }),
6452 )
6453 };
6454
6455 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6456 match whitespace_setting {
6457 ShowWhitespaceSetting::None => (),
6458 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6459 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6460 let invisible_point = DisplayPoint::new(row, start as u32);
6461 if !selection_ranges
6462 .iter()
6463 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6464 {
6465 return;
6466 }
6467
6468 paint(window, cx);
6469 }),
6470
6471 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6472 // - It is a tab
6473 // - It is adjacent to an edge (start or end)
6474 // - It is adjacent to a whitespace (left or right)
6475 ShowWhitespaceSetting::Boundary => {
6476 // 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
6477 // the above cases.
6478 // Note: We zip in the original `invisibles` to check for tab equality
6479 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6480 for (([start, end], paint), invisible) in
6481 invisible_iter.zip_eq(self.invisibles.iter())
6482 {
6483 let should_render = match (&last_seen, invisible) {
6484 (_, Invisible::Tab { .. }) => true,
6485 (Some((_, last_end, _)), _) => *last_end == start,
6486 _ => false,
6487 };
6488
6489 if should_render || start == 0 || end == self.len {
6490 paint(window, cx);
6491
6492 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6493 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6494 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6495 // Note that we need to make sure that the last one is actually adjacent
6496 if !should_render_last && last_end == start {
6497 paint_last(window, cx);
6498 }
6499 }
6500 }
6501
6502 // Manually render anything within a selection
6503 let invisible_point = DisplayPoint::new(row, start as u32);
6504 if selection_ranges.iter().any(|region| {
6505 region.start <= invisible_point && invisible_point < region.end
6506 }) {
6507 paint(window, cx);
6508 }
6509
6510 last_seen = Some((should_render, end, paint));
6511 }
6512 }
6513 }
6514 }
6515
6516 pub fn x_for_index(&self, index: usize) -> Pixels {
6517 let mut fragment_start_x = Pixels::ZERO;
6518 let mut fragment_start_index = 0;
6519
6520 for fragment in &self.fragments {
6521 match fragment {
6522 LineFragment::Text(shaped_line) => {
6523 let fragment_end_index = fragment_start_index + shaped_line.len;
6524 if index < fragment_end_index {
6525 return fragment_start_x
6526 + shaped_line.x_for_index(index - fragment_start_index);
6527 }
6528 fragment_start_x += shaped_line.width;
6529 fragment_start_index = fragment_end_index;
6530 }
6531 LineFragment::Element { len, size, .. } => {
6532 let fragment_end_index = fragment_start_index + len;
6533 if index < fragment_end_index {
6534 return fragment_start_x;
6535 }
6536 fragment_start_x += size.width;
6537 fragment_start_index = fragment_end_index;
6538 }
6539 }
6540 }
6541
6542 fragment_start_x
6543 }
6544
6545 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6546 let mut fragment_start_x = Pixels::ZERO;
6547 let mut fragment_start_index = 0;
6548
6549 for fragment in &self.fragments {
6550 match fragment {
6551 LineFragment::Text(shaped_line) => {
6552 let fragment_end_x = fragment_start_x + shaped_line.width;
6553 if x < fragment_end_x {
6554 return Some(
6555 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6556 );
6557 }
6558 fragment_start_x = fragment_end_x;
6559 fragment_start_index += shaped_line.len;
6560 }
6561 LineFragment::Element { len, size, .. } => {
6562 let fragment_end_x = fragment_start_x + size.width;
6563 if x < fragment_end_x {
6564 return Some(fragment_start_index);
6565 }
6566 fragment_start_index += len;
6567 fragment_start_x = fragment_end_x;
6568 }
6569 }
6570 }
6571
6572 None
6573 }
6574
6575 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6576 let mut fragment_start_index = 0;
6577
6578 for fragment in &self.fragments {
6579 match fragment {
6580 LineFragment::Text(shaped_line) => {
6581 let fragment_end_index = fragment_start_index + shaped_line.len;
6582 if index < fragment_end_index {
6583 return shaped_line.font_id_for_index(index - fragment_start_index);
6584 }
6585 fragment_start_index = fragment_end_index;
6586 }
6587 LineFragment::Element { len, .. } => {
6588 let fragment_end_index = fragment_start_index + len;
6589 if index < fragment_end_index {
6590 return None;
6591 }
6592 fragment_start_index = fragment_end_index;
6593 }
6594 }
6595 }
6596
6597 None
6598 }
6599}
6600
6601#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6602enum Invisible {
6603 /// A tab character
6604 ///
6605 /// A tab character is internally represented by spaces (configured by the user's tab width)
6606 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6607 /// adjacency checks.
6608 Tab {
6609 line_start_offset: usize,
6610 line_end_offset: usize,
6611 },
6612 Whitespace {
6613 line_offset: usize,
6614 },
6615}
6616
6617impl EditorElement {
6618 /// Returns the rem size to use when rendering the [`EditorElement`].
6619 ///
6620 /// This allows UI elements to scale based on the `buffer_font_size`.
6621 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6622 match self.editor.read(cx).mode {
6623 EditorMode::Full {
6624 scale_ui_elements_with_buffer_font_size,
6625 ..
6626 } => {
6627 if !scale_ui_elements_with_buffer_font_size {
6628 return None;
6629 }
6630 let buffer_font_size = self.style.text.font_size;
6631 match buffer_font_size {
6632 AbsoluteLength::Pixels(pixels) => {
6633 let rem_size_scale = {
6634 // Our default UI font size is 14px on a 16px base scale.
6635 // This means the default UI font size is 0.875rems.
6636 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6637
6638 // We then determine the delta between a single rem and the default font
6639 // size scale.
6640 let default_font_size_delta = 1. - default_font_size_scale;
6641
6642 // Finally, we add this delta to 1rem to get the scale factor that
6643 // should be used to scale up the UI.
6644 1. + default_font_size_delta
6645 };
6646
6647 Some(pixels * rem_size_scale)
6648 }
6649 AbsoluteLength::Rems(rems) => {
6650 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6651 }
6652 }
6653 }
6654 // We currently use single-line and auto-height editors in UI contexts,
6655 // so we don't want to scale everything with the buffer font size, as it
6656 // ends up looking off.
6657 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6658 }
6659 }
6660}
6661
6662impl Element for EditorElement {
6663 type RequestLayoutState = ();
6664 type PrepaintState = EditorLayout;
6665
6666 fn id(&self) -> Option<ElementId> {
6667 None
6668 }
6669
6670 fn request_layout(
6671 &mut self,
6672 _: Option<&GlobalElementId>,
6673 window: &mut Window,
6674 cx: &mut App,
6675 ) -> (gpui::LayoutId, ()) {
6676 let rem_size = self.rem_size(cx);
6677 window.with_rem_size(rem_size, |window| {
6678 self.editor.update(cx, |editor, cx| {
6679 editor.set_style(self.style.clone(), window, cx);
6680
6681 let layout_id = match editor.mode {
6682 EditorMode::SingleLine { auto_width } => {
6683 let rem_size = window.rem_size();
6684
6685 let height = self.style.text.line_height_in_pixels(rem_size);
6686 if auto_width {
6687 let editor_handle = cx.entity().clone();
6688 let style = self.style.clone();
6689 window.request_measured_layout(
6690 Style::default(),
6691 move |_, _, window, cx| {
6692 let editor_snapshot = editor_handle
6693 .update(cx, |editor, cx| editor.snapshot(window, cx));
6694 let line = Self::layout_lines(
6695 DisplayRow(0)..DisplayRow(1),
6696 &editor_snapshot,
6697 &style,
6698 px(f32::MAX),
6699 |_| false, // Single lines never soft wrap
6700 window,
6701 cx,
6702 )
6703 .pop()
6704 .unwrap();
6705
6706 let font_id =
6707 window.text_system().resolve_font(&style.text.font());
6708 let font_size =
6709 style.text.font_size.to_pixels(window.rem_size());
6710 let em_width =
6711 window.text_system().em_width(font_id, font_size).unwrap();
6712
6713 size(line.width + em_width, height)
6714 },
6715 )
6716 } else {
6717 let mut style = Style::default();
6718 style.size.height = height.into();
6719 style.size.width = relative(1.).into();
6720 window.request_layout(style, None, cx)
6721 }
6722 }
6723 EditorMode::AutoHeight { max_lines } => {
6724 let editor_handle = cx.entity().clone();
6725 let max_line_number_width =
6726 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6727 window.request_measured_layout(
6728 Style::default(),
6729 move |known_dimensions, available_space, window, cx| {
6730 editor_handle
6731 .update(cx, |editor, cx| {
6732 compute_auto_height_layout(
6733 editor,
6734 max_lines,
6735 max_line_number_width,
6736 known_dimensions,
6737 available_space.width,
6738 window,
6739 cx,
6740 )
6741 })
6742 .unwrap_or_default()
6743 },
6744 )
6745 }
6746 EditorMode::Full {
6747 sized_by_content, ..
6748 } => {
6749 let mut style = Style::default();
6750 style.size.width = relative(1.).into();
6751 if sized_by_content {
6752 let snapshot = editor.snapshot(window, cx);
6753 let line_height =
6754 self.style.text.line_height_in_pixels(window.rem_size());
6755 let scroll_height =
6756 (snapshot.max_point().row().next_row().0 as f32) * line_height;
6757 style.size.height = scroll_height.into();
6758 } else {
6759 style.size.height = relative(1.).into();
6760 }
6761 window.request_layout(style, None, cx)
6762 }
6763 };
6764
6765 (layout_id, ())
6766 })
6767 })
6768 }
6769
6770 fn prepaint(
6771 &mut self,
6772 _: Option<&GlobalElementId>,
6773 bounds: Bounds<Pixels>,
6774 _: &mut Self::RequestLayoutState,
6775 window: &mut Window,
6776 cx: &mut App,
6777 ) -> Self::PrepaintState {
6778 let text_style = TextStyleRefinement {
6779 font_size: Some(self.style.text.font_size),
6780 line_height: Some(self.style.text.line_height),
6781 ..Default::default()
6782 };
6783 let focus_handle = self.editor.focus_handle(cx);
6784 window.set_view_id(self.editor.entity_id());
6785 window.set_focus_handle(&focus_handle, cx);
6786
6787 let rem_size = self.rem_size(cx);
6788 window.with_rem_size(rem_size, |window| {
6789 window.with_text_style(Some(text_style), |window| {
6790 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6791 let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| {
6792 (editor.snapshot(window, cx), editor.read_only(cx))
6793 });
6794 let style = self.style.clone();
6795
6796 let font_id = window.text_system().resolve_font(&style.text.font());
6797 let font_size = style.text.font_size.to_pixels(window.rem_size());
6798 let line_height = style.text.line_height_in_pixels(window.rem_size());
6799 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6800 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6801
6802 let glyph_grid_cell = size(em_width, line_height);
6803
6804 let gutter_dimensions = snapshot
6805 .gutter_dimensions(
6806 font_id,
6807 font_size,
6808 self.max_line_number_width(&snapshot, window, cx),
6809 cx,
6810 )
6811 .unwrap_or_default();
6812 let text_width = bounds.size.width - gutter_dimensions.width;
6813
6814 let editor_width =
6815 text_width - gutter_dimensions.margin - em_width - style.scrollbar_width;
6816
6817 snapshot = self.editor.update(cx, |editor, cx| {
6818 editor.last_bounds = Some(bounds);
6819 editor.gutter_dimensions = gutter_dimensions;
6820 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6821
6822 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6823 snapshot
6824 } else {
6825 let wrap_width = match editor.soft_wrap_mode(cx) {
6826 SoftWrap::GitDiff => None,
6827 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6828 SoftWrap::EditorWidth => Some(editor_width),
6829 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6830 SoftWrap::Bounded(column) => {
6831 Some(editor_width.min(column as f32 * em_advance))
6832 }
6833 };
6834
6835 if editor.set_wrap_width(wrap_width.map(|w| w.ceil()), cx) {
6836 editor.snapshot(window, cx)
6837 } else {
6838 snapshot
6839 }
6840 }
6841 });
6842
6843 let wrap_guides = self
6844 .editor
6845 .read(cx)
6846 .wrap_guides(cx)
6847 .iter()
6848 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6849 .collect::<SmallVec<[_; 2]>>();
6850
6851 let hitbox = window.insert_hitbox(bounds, false);
6852 let gutter_hitbox =
6853 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6854 let text_hitbox = window.insert_hitbox(
6855 Bounds {
6856 origin: gutter_hitbox.top_right(),
6857 size: size(text_width, bounds.size.height),
6858 },
6859 false,
6860 );
6861
6862 // Offset the content_bounds from the text_bounds by the gutter margin (which
6863 // is roughly half a character wide) to make hit testing work more like how we want.
6864 let content_offset = point(gutter_dimensions.margin, Pixels::ZERO);
6865 let content_origin = text_hitbox.origin + content_offset;
6866
6867 let editor_text_bounds =
6868 Bounds::from_corners(content_origin, bounds.bottom_right());
6869
6870 let height_in_lines = editor_text_bounds.size.height / line_height;
6871
6872 let max_row = snapshot.max_point().row().as_f32();
6873
6874 // The max scroll position for the top of the window
6875 let max_scroll_top = if matches!(
6876 snapshot.mode,
6877 EditorMode::AutoHeight { .. } | EditorMode::SingleLine { .. }
6878 ) {
6879 (max_row - height_in_lines + 1.).max(0.)
6880 } else {
6881 let settings = EditorSettings::get_global(cx);
6882 match settings.scroll_beyond_last_line {
6883 ScrollBeyondLastLine::OnePage => max_row,
6884 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6885 ScrollBeyondLastLine::VerticalScrollMargin => {
6886 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6887 .max(0.)
6888 }
6889 }
6890 };
6891
6892 // TODO: Autoscrolling for both axes
6893 let mut autoscroll_request = None;
6894 let mut autoscroll_containing_element = false;
6895 let mut autoscroll_horizontally = false;
6896 self.editor.update(cx, |editor, cx| {
6897 autoscroll_request = editor.autoscroll_request();
6898 autoscroll_containing_element =
6899 autoscroll_request.is_some() || editor.has_pending_selection();
6900 // TODO: Is this horizontal or vertical?!
6901 autoscroll_horizontally = editor.autoscroll_vertically(
6902 bounds,
6903 line_height,
6904 max_scroll_top,
6905 window,
6906 cx,
6907 );
6908 snapshot = editor.snapshot(window, cx);
6909 });
6910
6911 let mut scroll_position = snapshot.scroll_position();
6912 // The scroll position is a fractional point, the whole number of which represents
6913 // the top of the window in terms of display rows.
6914 let start_row = DisplayRow(scroll_position.y as u32);
6915 let max_row = snapshot.max_point().row();
6916 let end_row = cmp::min(
6917 (scroll_position.y + height_in_lines).ceil() as u32,
6918 max_row.next_row().0,
6919 );
6920 let end_row = DisplayRow(end_row);
6921
6922 let row_infos = snapshot
6923 .row_infos(start_row)
6924 .take((start_row..end_row).len())
6925 .collect::<Vec<RowInfo>>();
6926 let is_row_soft_wrapped = |row: usize| {
6927 row_infos
6928 .get(row)
6929 .map_or(true, |info| info.buffer_row.is_none())
6930 };
6931
6932 let start_anchor = if start_row == Default::default() {
6933 Anchor::min()
6934 } else {
6935 snapshot.buffer_snapshot.anchor_before(
6936 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6937 )
6938 };
6939 let end_anchor = if end_row > max_row {
6940 Anchor::max()
6941 } else {
6942 snapshot.buffer_snapshot.anchor_before(
6943 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6944 )
6945 };
6946
6947 let mut highlighted_rows = self
6948 .editor
6949 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6950
6951 let is_light = cx.theme().appearance().is_light();
6952
6953 for (ix, row_info) in row_infos.iter().enumerate() {
6954 let Some(diff_status) = row_info.diff_status else {
6955 continue;
6956 };
6957
6958 let background_color = match diff_status.kind {
6959 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
6960 DiffHunkStatusKind::Deleted => {
6961 cx.theme().colors().version_control_deleted
6962 }
6963 DiffHunkStatusKind::Modified => {
6964 debug_panic!("modified diff status for row info");
6965 continue;
6966 }
6967 };
6968
6969 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
6970
6971 let hollow_highlight = LineHighlight {
6972 background: (background_color.opacity(if is_light {
6973 0.08
6974 } else {
6975 0.06
6976 }))
6977 .into(),
6978 border: Some(if is_light {
6979 background_color.opacity(0.48)
6980 } else {
6981 background_color.opacity(0.36)
6982 }),
6983 include_gutter: true,
6984 type_id: None,
6985 };
6986
6987 let filled_highlight = LineHighlight {
6988 background: solid_background(background_color.opacity(hunk_opacity)),
6989 border: None,
6990 include_gutter: true,
6991 type_id: None,
6992 };
6993
6994 let background = if Self::diff_hunk_hollow(diff_status, cx) {
6995 hollow_highlight
6996 } else {
6997 filled_highlight
6998 };
6999
7000 highlighted_rows
7001 .entry(start_row + DisplayRow(ix as u32))
7002 .or_insert(background);
7003 }
7004
7005 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
7006 start_anchor..end_anchor,
7007 &snapshot.display_snapshot,
7008 cx.theme().colors(),
7009 );
7010 let highlighted_gutter_ranges =
7011 self.editor.read(cx).gutter_highlights_in_range(
7012 start_anchor..end_anchor,
7013 &snapshot.display_snapshot,
7014 cx,
7015 );
7016
7017 let redacted_ranges = self.editor.read(cx).redacted_ranges(
7018 start_anchor..end_anchor,
7019 &snapshot.display_snapshot,
7020 cx,
7021 );
7022
7023 let (local_selections, selected_buffer_ids): (
7024 Vec<Selection<Point>>,
7025 Vec<BufferId>,
7026 ) = self.editor.update(cx, |editor, cx| {
7027 let all_selections = editor.selections.all::<Point>(cx);
7028 let selected_buffer_ids = if editor.is_singleton(cx) {
7029 Vec::new()
7030 } else {
7031 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
7032
7033 for selection in all_selections {
7034 for buffer_id in snapshot
7035 .buffer_snapshot
7036 .buffer_ids_for_range(selection.range())
7037 {
7038 if selected_buffer_ids.last() != Some(&buffer_id) {
7039 selected_buffer_ids.push(buffer_id);
7040 }
7041 }
7042 }
7043
7044 selected_buffer_ids
7045 };
7046
7047 let mut selections = editor
7048 .selections
7049 .disjoint_in_range(start_anchor..end_anchor, cx);
7050 selections.extend(editor.selections.pending(cx));
7051
7052 (selections, selected_buffer_ids)
7053 });
7054
7055 let (selections, mut active_rows, newest_selection_head) = self
7056 .layout_selections(
7057 start_anchor,
7058 end_anchor,
7059 &local_selections,
7060 &snapshot,
7061 start_row,
7062 end_row,
7063 window,
7064 cx,
7065 );
7066 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
7067 editor.active_breakpoints(start_row..end_row, window, cx)
7068 });
7069 if cx.has_flag::<DebuggerFeatureFlag>() {
7070 for display_row in breakpoint_rows.keys() {
7071 active_rows.entry(*display_row).or_default().breakpoint = true;
7072 }
7073 }
7074
7075 let line_numbers = self.layout_line_numbers(
7076 Some(&gutter_hitbox),
7077 gutter_dimensions,
7078 line_height,
7079 scroll_position,
7080 start_row..end_row,
7081 &row_infos,
7082 &active_rows,
7083 newest_selection_head,
7084 &snapshot,
7085 window,
7086 cx,
7087 );
7088
7089 // We add the gutter breakpoint indicator to breakpoint_rows after painting
7090 // line numbers so we don't paint a line number debug accent color if a user
7091 // has their mouse over that line when a breakpoint isn't there
7092 if cx.has_flag::<DebuggerFeatureFlag>() {
7093 self.editor.update(cx, |editor, _| {
7094 if let Some(phantom_breakpoint) = &mut editor
7095 .gutter_breakpoint_indicator
7096 .0
7097 .filter(|phantom_breakpoint| phantom_breakpoint.is_active)
7098 {
7099 // Is there a non-phantom breakpoint on this line?
7100 phantom_breakpoint.collides_with_existing_breakpoint = true;
7101 breakpoint_rows
7102 .entry(phantom_breakpoint.display_row)
7103 .or_insert_with(|| {
7104 let position = snapshot.display_point_to_anchor(
7105 DisplayPoint::new(phantom_breakpoint.display_row, 0),
7106 Bias::Right,
7107 );
7108 let breakpoint = Breakpoint::new_standard();
7109 phantom_breakpoint.collides_with_existing_breakpoint =
7110 false;
7111 (position, breakpoint)
7112 });
7113 }
7114 })
7115 }
7116
7117 let mut expand_toggles =
7118 window.with_element_namespace("expand_toggles", |window| {
7119 self.layout_expand_toggles(
7120 &gutter_hitbox,
7121 gutter_dimensions,
7122 em_width,
7123 line_height,
7124 scroll_position,
7125 &row_infos,
7126 window,
7127 cx,
7128 )
7129 });
7130
7131 let mut crease_toggles =
7132 window.with_element_namespace("crease_toggles", |window| {
7133 self.layout_crease_toggles(
7134 start_row..end_row,
7135 &row_infos,
7136 &active_rows,
7137 &snapshot,
7138 window,
7139 cx,
7140 )
7141 });
7142 let crease_trailers =
7143 window.with_element_namespace("crease_trailers", |window| {
7144 self.layout_crease_trailers(
7145 row_infos.iter().copied(),
7146 &snapshot,
7147 window,
7148 cx,
7149 )
7150 });
7151
7152 let display_hunks = self.layout_gutter_diff_hunks(
7153 line_height,
7154 &gutter_hitbox,
7155 start_row..end_row,
7156 &snapshot,
7157 window,
7158 cx,
7159 );
7160
7161 let mut line_layouts = Self::layout_lines(
7162 start_row..end_row,
7163 &snapshot,
7164 &self.style,
7165 editor_width,
7166 is_row_soft_wrapped,
7167 window,
7168 cx,
7169 );
7170 let new_fold_widths = line_layouts
7171 .iter()
7172 .flat_map(|layout| &layout.fragments)
7173 .filter_map(|fragment| {
7174 if let LineFragment::Element { id, size, .. } = fragment {
7175 Some((*id, size.width))
7176 } else {
7177 None
7178 }
7179 });
7180 if self.editor.update(cx, |editor, cx| {
7181 editor.update_fold_widths(new_fold_widths, cx)
7182 }) {
7183 // If the fold widths have changed, we need to prepaint
7184 // the element again to account for any changes in
7185 // wrapping.
7186 return self.prepaint(None, bounds, &mut (), window, cx);
7187 }
7188
7189 let longest_line_blame_width = self
7190 .editor
7191 .update(cx, |editor, cx| {
7192 if !editor.show_git_blame_inline {
7193 return None;
7194 }
7195 let blame = editor.blame.as_ref()?;
7196 let blame_entry = blame
7197 .update(cx, |blame, cx| {
7198 let row_infos =
7199 snapshot.row_infos(snapshot.longest_row()).next()?;
7200 blame.blame_for_rows(&[row_infos], cx).next()
7201 })
7202 .flatten()?;
7203 let mut element = render_inline_blame_entry(blame_entry, &style, cx)?;
7204 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
7205 Some(
7206 element
7207 .layout_as_root(AvailableSpace::min_size(), window, cx)
7208 .width
7209 + inline_blame_padding,
7210 )
7211 })
7212 .unwrap_or(Pixels::ZERO);
7213
7214 let longest_line_width = layout_line(
7215 snapshot.longest_row(),
7216 &snapshot,
7217 &style,
7218 editor_width,
7219 is_row_soft_wrapped,
7220 window,
7221 cx,
7222 )
7223 .width;
7224
7225 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
7226 text_hitbox.bounds,
7227 glyph_grid_cell,
7228 size(longest_line_width, max_row.as_f32() * line_height),
7229 longest_line_blame_width,
7230 style.scrollbar_width,
7231 editor_width,
7232 EditorSettings::get_global(cx),
7233 );
7234
7235 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
7236
7237 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
7238 snapshot.sticky_header_excerpt(scroll_position.y)
7239 } else {
7240 None
7241 };
7242 let sticky_header_excerpt_id =
7243 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
7244
7245 let blocks = window.with_element_namespace("blocks", |window| {
7246 self.render_blocks(
7247 start_row..end_row,
7248 &snapshot,
7249 &hitbox,
7250 &text_hitbox,
7251 editor_width,
7252 &mut scroll_width,
7253 &gutter_dimensions,
7254 em_width,
7255 gutter_dimensions.full_width(),
7256 line_height,
7257 &mut line_layouts,
7258 &local_selections,
7259 &selected_buffer_ids,
7260 is_row_soft_wrapped,
7261 sticky_header_excerpt_id,
7262 window,
7263 cx,
7264 )
7265 });
7266 let (mut blocks, row_block_types) = match blocks {
7267 Ok(blocks) => blocks,
7268 Err(resized_blocks) => {
7269 self.editor.update(cx, |editor, cx| {
7270 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
7271 });
7272 return self.prepaint(None, bounds, &mut (), window, cx);
7273 }
7274 };
7275
7276 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
7277 window.with_element_namespace("blocks", |window| {
7278 self.layout_sticky_buffer_header(
7279 sticky_header_excerpt,
7280 scroll_position.y,
7281 line_height,
7282 &snapshot,
7283 &hitbox,
7284 &selected_buffer_ids,
7285 &blocks,
7286 window,
7287 cx,
7288 )
7289 })
7290 });
7291
7292 let start_buffer_row =
7293 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7294 let end_buffer_row =
7295 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7296
7297 let scroll_max = point(
7298 ((scroll_width - editor_text_bounds.size.width) / em_width).max(0.0),
7299 max_scroll_top,
7300 );
7301
7302 self.editor.update(cx, |editor, cx| {
7303 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7304
7305 let autoscrolled = if autoscroll_horizontally {
7306 editor.autoscroll_horizontally(
7307 start_row,
7308 editor_width - (glyph_grid_cell.width / 2.0)
7309 + style.scrollbar_width,
7310 scroll_width,
7311 em_width,
7312 &line_layouts,
7313 cx,
7314 )
7315 } else {
7316 false
7317 };
7318
7319 if clamped || autoscrolled {
7320 snapshot = editor.snapshot(window, cx);
7321 scroll_position = snapshot.scroll_position();
7322 }
7323 });
7324
7325 let scroll_pixel_position = point(
7326 scroll_position.x * em_width,
7327 scroll_position.y * line_height,
7328 );
7329
7330 let indent_guides = self.layout_indent_guides(
7331 content_origin,
7332 text_hitbox.origin,
7333 start_buffer_row..end_buffer_row,
7334 scroll_pixel_position,
7335 line_height,
7336 &snapshot,
7337 window,
7338 cx,
7339 );
7340
7341 let crease_trailers =
7342 window.with_element_namespace("crease_trailers", |window| {
7343 self.prepaint_crease_trailers(
7344 crease_trailers,
7345 &line_layouts,
7346 line_height,
7347 content_origin,
7348 scroll_pixel_position,
7349 em_width,
7350 window,
7351 cx,
7352 )
7353 });
7354
7355 let (inline_completion_popover, inline_completion_popover_origin) = self
7356 .editor
7357 .update(cx, |editor, cx| {
7358 editor.render_edit_prediction_popover(
7359 &text_hitbox.bounds,
7360 content_origin,
7361 &snapshot,
7362 start_row..end_row,
7363 scroll_position.y,
7364 scroll_position.y + height_in_lines,
7365 &line_layouts,
7366 line_height,
7367 scroll_pixel_position,
7368 newest_selection_head,
7369 editor_width,
7370 &style,
7371 window,
7372 cx,
7373 )
7374 })
7375 .unzip();
7376
7377 let mut inline_diagnostics = self.layout_inline_diagnostics(
7378 &line_layouts,
7379 &crease_trailers,
7380 &row_block_types,
7381 content_origin,
7382 scroll_pixel_position,
7383 inline_completion_popover_origin,
7384 start_row,
7385 end_row,
7386 line_height,
7387 em_width,
7388 &style,
7389 window,
7390 cx,
7391 );
7392
7393 let mut inline_blame = None;
7394 if let Some(newest_selection_head) = newest_selection_head {
7395 let display_row = newest_selection_head.row();
7396 if (start_row..end_row).contains(&display_row)
7397 && !row_block_types.contains_key(&display_row)
7398 {
7399 let line_ix = display_row.minus(start_row) as usize;
7400 let row_info = &row_infos[line_ix];
7401 let line_layout = &line_layouts[line_ix];
7402 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7403 inline_blame = self.layout_inline_blame(
7404 display_row,
7405 row_info,
7406 line_layout,
7407 crease_trailer_layout,
7408 em_width,
7409 content_origin,
7410 scroll_pixel_position,
7411 line_height,
7412 &text_hitbox,
7413 window,
7414 cx,
7415 );
7416 if inline_blame.is_some() {
7417 // Blame overrides inline diagnostics
7418 inline_diagnostics.remove(&display_row);
7419 }
7420 }
7421 }
7422
7423 let blamed_display_rows = self.layout_blame_entries(
7424 &row_infos,
7425 em_width,
7426 scroll_position,
7427 line_height,
7428 &gutter_hitbox,
7429 gutter_dimensions.git_blame_entries_width,
7430 window,
7431 cx,
7432 );
7433
7434 self.editor.update(cx, |editor, cx| {
7435 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7436
7437 let autoscrolled = if autoscroll_horizontally {
7438 editor.autoscroll_horizontally(
7439 start_row,
7440 editor_width - (glyph_grid_cell.width / 2.0)
7441 + style.scrollbar_width,
7442 scroll_width,
7443 em_width,
7444 &line_layouts,
7445 cx,
7446 )
7447 } else {
7448 false
7449 };
7450
7451 if clamped || autoscrolled {
7452 snapshot = editor.snapshot(window, cx);
7453 scroll_position = snapshot.scroll_position();
7454 }
7455 });
7456
7457 let line_elements = self.prepaint_lines(
7458 start_row,
7459 &mut line_layouts,
7460 line_height,
7461 scroll_pixel_position,
7462 content_origin,
7463 window,
7464 cx,
7465 );
7466
7467 window.with_element_namespace("blocks", |window| {
7468 self.layout_blocks(
7469 &mut blocks,
7470 &hitbox,
7471 line_height,
7472 scroll_pixel_position,
7473 window,
7474 cx,
7475 );
7476 });
7477
7478 let cursors = self.collect_cursors(&snapshot, cx);
7479 let visible_row_range = start_row..end_row;
7480 let non_visible_cursors = cursors
7481 .iter()
7482 .any(|c| !visible_row_range.contains(&c.0.row()));
7483
7484 let visible_cursors = self.layout_visible_cursors(
7485 &snapshot,
7486 &selections,
7487 &row_block_types,
7488 start_row..end_row,
7489 &line_layouts,
7490 &text_hitbox,
7491 content_origin,
7492 scroll_position,
7493 scroll_pixel_position,
7494 line_height,
7495 em_width,
7496 em_advance,
7497 autoscroll_containing_element,
7498 window,
7499 cx,
7500 );
7501
7502 let scrollbars_layout = self.layout_scrollbars(
7503 &snapshot,
7504 scrollbar_layout_information,
7505 content_offset,
7506 scroll_position,
7507 non_visible_cursors,
7508 window,
7509 cx,
7510 );
7511
7512 let gutter_settings = EditorSettings::get_global(cx).gutter;
7513
7514 let mut code_actions_indicator = None;
7515 if let Some(newest_selection_head) = newest_selection_head {
7516 let newest_selection_point =
7517 newest_selection_head.to_point(&snapshot.display_snapshot);
7518
7519 if (start_row..end_row).contains(&newest_selection_head.row()) {
7520 self.layout_cursor_popovers(
7521 line_height,
7522 &text_hitbox,
7523 content_origin,
7524 start_row,
7525 scroll_pixel_position,
7526 &line_layouts,
7527 newest_selection_head,
7528 newest_selection_point,
7529 &style,
7530 window,
7531 cx,
7532 );
7533
7534 let show_code_actions = snapshot
7535 .show_code_actions
7536 .unwrap_or(gutter_settings.code_actions);
7537 if show_code_actions {
7538 let newest_selection_point =
7539 newest_selection_head.to_point(&snapshot.display_snapshot);
7540 if !snapshot
7541 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7542 {
7543 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7544 MultiBufferRow(newest_selection_point.row),
7545 );
7546 if let Some((buffer, range)) = buffer {
7547 let buffer_id = buffer.remote_id();
7548 let row = range.start.row;
7549 let has_test_indicator = self
7550 .editor
7551 .read(cx)
7552 .tasks
7553 .contains_key(&(buffer_id, row));
7554
7555 let has_expand_indicator = row_infos
7556 .get(
7557 (newest_selection_head.row() - start_row).0
7558 as usize,
7559 )
7560 .is_some_and(|row_info| row_info.expand_info.is_some());
7561
7562 if !has_test_indicator && !has_expand_indicator {
7563 code_actions_indicator = self
7564 .layout_code_actions_indicator(
7565 line_height,
7566 newest_selection_head,
7567 scroll_pixel_position,
7568 &gutter_dimensions,
7569 &gutter_hitbox,
7570 &mut breakpoint_rows,
7571 &display_hunks,
7572 window,
7573 cx,
7574 );
7575 }
7576 }
7577 }
7578 }
7579 }
7580 }
7581
7582 self.layout_gutter_menu(
7583 line_height,
7584 &text_hitbox,
7585 content_origin,
7586 scroll_pixel_position,
7587 gutter_dimensions.width - gutter_dimensions.left_padding,
7588 window,
7589 cx,
7590 );
7591
7592 let test_indicators = if gutter_settings.runnables {
7593 self.layout_run_indicators(
7594 line_height,
7595 start_row..end_row,
7596 &row_infos,
7597 scroll_pixel_position,
7598 &gutter_dimensions,
7599 &gutter_hitbox,
7600 &display_hunks,
7601 &snapshot,
7602 &mut breakpoint_rows,
7603 window,
7604 cx,
7605 )
7606 } else {
7607 Vec::new()
7608 };
7609
7610 let show_breakpoints = snapshot
7611 .show_breakpoints
7612 .unwrap_or(gutter_settings.breakpoints);
7613 let breakpoints = if cx.has_flag::<DebuggerFeatureFlag>() && show_breakpoints {
7614 self.layout_breakpoints(
7615 line_height,
7616 start_row..end_row,
7617 scroll_pixel_position,
7618 &gutter_dimensions,
7619 &gutter_hitbox,
7620 &display_hunks,
7621 &snapshot,
7622 breakpoint_rows,
7623 &row_infos,
7624 window,
7625 cx,
7626 )
7627 } else {
7628 vec![]
7629 };
7630
7631 self.layout_signature_help(
7632 &hitbox,
7633 &text_hitbox,
7634 content_origin,
7635 scroll_pixel_position,
7636 newest_selection_head,
7637 start_row,
7638 &line_layouts,
7639 line_height,
7640 em_width,
7641 window,
7642 cx,
7643 );
7644
7645 if !cx.has_active_drag() {
7646 self.layout_hover_popovers(
7647 &snapshot,
7648 &hitbox,
7649 &text_hitbox,
7650 start_row..end_row,
7651 content_origin,
7652 scroll_pixel_position,
7653 &line_layouts,
7654 line_height,
7655 em_width,
7656 window,
7657 cx,
7658 );
7659 }
7660
7661 let mouse_context_menu = self.layout_mouse_context_menu(
7662 &snapshot,
7663 start_row..end_row,
7664 content_origin,
7665 window,
7666 cx,
7667 );
7668
7669 window.with_element_namespace("crease_toggles", |window| {
7670 self.prepaint_crease_toggles(
7671 &mut crease_toggles,
7672 line_height,
7673 &gutter_dimensions,
7674 gutter_settings,
7675 scroll_pixel_position,
7676 &gutter_hitbox,
7677 window,
7678 cx,
7679 )
7680 });
7681
7682 window.with_element_namespace("expand_toggles", |window| {
7683 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
7684 });
7685
7686 let invisible_symbol_font_size = font_size / 2.;
7687 let tab_invisible = window
7688 .text_system()
7689 .shape_line(
7690 "→".into(),
7691 invisible_symbol_font_size,
7692 &[TextRun {
7693 len: "→".len(),
7694 font: self.style.text.font(),
7695 color: cx.theme().colors().editor_invisible,
7696 background_color: None,
7697 underline: None,
7698 strikethrough: None,
7699 }],
7700 )
7701 .unwrap();
7702 let space_invisible = window
7703 .text_system()
7704 .shape_line(
7705 "•".into(),
7706 invisible_symbol_font_size,
7707 &[TextRun {
7708 len: "•".len(),
7709 font: self.style.text.font(),
7710 color: cx.theme().colors().editor_invisible,
7711 background_color: None,
7712 underline: None,
7713 strikethrough: None,
7714 }],
7715 )
7716 .unwrap();
7717
7718 let mode = snapshot.mode;
7719
7720 let position_map = Rc::new(PositionMap {
7721 size: bounds.size,
7722 visible_row_range,
7723 scroll_pixel_position,
7724 scroll_max,
7725 line_layouts,
7726 line_height,
7727 em_width,
7728 em_advance,
7729 snapshot,
7730 gutter_hitbox: gutter_hitbox.clone(),
7731 text_hitbox: text_hitbox.clone(),
7732 });
7733
7734 self.editor.update(cx, |editor, _| {
7735 editor.last_position_map = Some(position_map.clone())
7736 });
7737
7738 let diff_hunk_controls = if is_read_only {
7739 vec![]
7740 } else {
7741 self.layout_diff_hunk_controls(
7742 start_row..end_row,
7743 &row_infos,
7744 &text_hitbox,
7745 &position_map,
7746 newest_selection_head,
7747 line_height,
7748 scroll_pixel_position,
7749 &display_hunks,
7750 &highlighted_rows,
7751 self.editor.clone(),
7752 window,
7753 cx,
7754 )
7755 };
7756
7757 EditorLayout {
7758 mode,
7759 position_map,
7760 visible_display_row_range: start_row..end_row,
7761 wrap_guides,
7762 indent_guides,
7763 hitbox,
7764 gutter_hitbox,
7765 display_hunks,
7766 content_origin,
7767 scrollbars_layout,
7768 active_rows,
7769 highlighted_rows,
7770 highlighted_ranges,
7771 highlighted_gutter_ranges,
7772 redacted_ranges,
7773 line_elements,
7774 line_numbers,
7775 blamed_display_rows,
7776 inline_diagnostics,
7777 inline_blame,
7778 blocks,
7779 cursors,
7780 visible_cursors,
7781 selections,
7782 inline_completion_popover,
7783 diff_hunk_controls,
7784 mouse_context_menu,
7785 test_indicators,
7786 breakpoints,
7787 code_actions_indicator,
7788 crease_toggles,
7789 crease_trailers,
7790 tab_invisible,
7791 space_invisible,
7792 sticky_buffer_header,
7793 expand_toggles,
7794 }
7795 })
7796 })
7797 })
7798 }
7799
7800 fn paint(
7801 &mut self,
7802 _: Option<&GlobalElementId>,
7803 bounds: Bounds<gpui::Pixels>,
7804 _: &mut Self::RequestLayoutState,
7805 layout: &mut Self::PrepaintState,
7806 window: &mut Window,
7807 cx: &mut App,
7808 ) {
7809 let focus_handle = self.editor.focus_handle(cx);
7810 let key_context = self
7811 .editor
7812 .update(cx, |editor, cx| editor.key_context(window, cx));
7813
7814 window.set_key_context(key_context);
7815 window.handle_input(
7816 &focus_handle,
7817 ElementInputHandler::new(bounds, self.editor.clone()),
7818 cx,
7819 );
7820 self.register_actions(window, cx);
7821 self.register_key_listeners(window, cx, layout);
7822
7823 let text_style = TextStyleRefinement {
7824 font_size: Some(self.style.text.font_size),
7825 line_height: Some(self.style.text.line_height),
7826 ..Default::default()
7827 };
7828 let rem_size = self.rem_size(cx);
7829 window.with_rem_size(rem_size, |window| {
7830 window.with_text_style(Some(text_style), |window| {
7831 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7832 self.paint_mouse_listeners(layout, window, cx);
7833 self.paint_background(layout, window, cx);
7834 self.paint_indent_guides(layout, window, cx);
7835
7836 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7837 self.paint_blamed_display_rows(layout, window, cx);
7838 self.paint_line_numbers(layout, window, cx);
7839 }
7840
7841 self.paint_text(layout, window, cx);
7842
7843 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7844 self.paint_gutter_highlights(layout, window, cx);
7845 self.paint_gutter_indicators(layout, window, cx);
7846 }
7847
7848 if !layout.blocks.is_empty() {
7849 window.with_element_namespace("blocks", |window| {
7850 self.paint_blocks(layout, window, cx);
7851 });
7852 }
7853
7854 window.with_element_namespace("blocks", |window| {
7855 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7856 sticky_header.paint(window, cx)
7857 }
7858 });
7859
7860 self.paint_scrollbars(layout, window, cx);
7861 self.paint_inline_completion_popover(layout, window, cx);
7862 self.paint_mouse_context_menu(layout, window, cx);
7863 });
7864 })
7865 })
7866 }
7867}
7868
7869pub(super) fn gutter_bounds(
7870 editor_bounds: Bounds<Pixels>,
7871 gutter_dimensions: GutterDimensions,
7872) -> Bounds<Pixels> {
7873 Bounds {
7874 origin: editor_bounds.origin,
7875 size: size(gutter_dimensions.width, editor_bounds.size.height),
7876 }
7877}
7878
7879/// Holds information required for layouting the editor scrollbars.
7880struct ScrollbarLayoutInformation {
7881 /// The bounds of the editor area (excluding the content offset).
7882 editor_bounds: Bounds<Pixels>,
7883 /// The available range to scroll within the document.
7884 scroll_range: Size<Pixels>,
7885 /// The space available for one glyph in the editor.
7886 glyph_grid_cell: Size<Pixels>,
7887}
7888
7889impl ScrollbarLayoutInformation {
7890 pub fn new(
7891 editor_bounds: Bounds<Pixels>,
7892 glyph_grid_cell: Size<Pixels>,
7893 document_size: Size<Pixels>,
7894 longest_line_blame_width: Pixels,
7895 scrollbar_width: Pixels,
7896 editor_width: Pixels,
7897 settings: &EditorSettings,
7898 ) -> Self {
7899 let vertical_overscroll = match settings.scroll_beyond_last_line {
7900 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
7901 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
7902 ScrollBeyondLastLine::VerticalScrollMargin => {
7903 (1.0 + settings.vertical_scroll_margin) * glyph_grid_cell.height
7904 }
7905 };
7906
7907 let right_margin = if document_size.width + longest_line_blame_width >= editor_width {
7908 glyph_grid_cell.width + scrollbar_width
7909 } else {
7910 px(0.0)
7911 };
7912
7913 let overscroll = size(right_margin + longest_line_blame_width, vertical_overscroll);
7914
7915 let scroll_range = document_size + overscroll;
7916
7917 ScrollbarLayoutInformation {
7918 editor_bounds,
7919 scroll_range,
7920 glyph_grid_cell,
7921 }
7922 }
7923}
7924
7925impl IntoElement for EditorElement {
7926 type Element = Self;
7927
7928 fn into_element(self) -> Self::Element {
7929 self
7930 }
7931}
7932
7933pub struct EditorLayout {
7934 position_map: Rc<PositionMap>,
7935 hitbox: Hitbox,
7936 gutter_hitbox: Hitbox,
7937 content_origin: gpui::Point<Pixels>,
7938 scrollbars_layout: Option<EditorScrollbars>,
7939 mode: EditorMode,
7940 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7941 indent_guides: Option<Vec<IndentGuideLayout>>,
7942 visible_display_row_range: Range<DisplayRow>,
7943 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
7944 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
7945 line_elements: SmallVec<[AnyElement; 1]>,
7946 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7947 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7948 blamed_display_rows: Option<Vec<AnyElement>>,
7949 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
7950 inline_blame: Option<AnyElement>,
7951 blocks: Vec<BlockLayout>,
7952 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7953 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7954 redacted_ranges: Vec<Range<DisplayPoint>>,
7955 cursors: Vec<(DisplayPoint, Hsla)>,
7956 visible_cursors: Vec<CursorLayout>,
7957 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7958 code_actions_indicator: Option<AnyElement>,
7959 test_indicators: Vec<AnyElement>,
7960 breakpoints: Vec<AnyElement>,
7961 crease_toggles: Vec<Option<AnyElement>>,
7962 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
7963 diff_hunk_controls: Vec<AnyElement>,
7964 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7965 inline_completion_popover: Option<AnyElement>,
7966 mouse_context_menu: Option<AnyElement>,
7967 tab_invisible: ShapedLine,
7968 space_invisible: ShapedLine,
7969 sticky_buffer_header: Option<AnyElement>,
7970}
7971
7972impl EditorLayout {
7973 fn line_end_overshoot(&self) -> Pixels {
7974 0.15 * self.position_map.line_height
7975 }
7976}
7977
7978struct LineNumberLayout {
7979 shaped_line: ShapedLine,
7980 hitbox: Option<Hitbox>,
7981}
7982
7983struct ColoredRange<T> {
7984 start: T,
7985 end: T,
7986 color: Hsla,
7987}
7988
7989impl Along for ScrollbarAxes {
7990 type Unit = bool;
7991
7992 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
7993 match axis {
7994 ScrollbarAxis::Horizontal => self.horizontal,
7995 ScrollbarAxis::Vertical => self.vertical,
7996 }
7997 }
7998
7999 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
8000 match axis {
8001 ScrollbarAxis::Horizontal => ScrollbarAxes {
8002 horizontal: f(self.horizontal),
8003 vertical: self.vertical,
8004 },
8005 ScrollbarAxis::Vertical => ScrollbarAxes {
8006 horizontal: self.horizontal,
8007 vertical: f(self.vertical),
8008 },
8009 }
8010 }
8011}
8012
8013#[derive(Clone)]
8014struct EditorScrollbars {
8015 pub vertical: Option<ScrollbarLayout>,
8016 pub horizontal: Option<ScrollbarLayout>,
8017 pub visible: bool,
8018}
8019
8020impl EditorScrollbars {
8021 pub fn from_scrollbar_axes(
8022 settings_visibility: ScrollbarAxes,
8023 layout_information: &ScrollbarLayoutInformation,
8024 content_offset: gpui::Point<Pixels>,
8025 scroll_position: gpui::Point<f32>,
8026 scrollbar_width: Pixels,
8027 show_scrollbars: bool,
8028 window: &mut Window,
8029 ) -> Self {
8030 let ScrollbarLayoutInformation {
8031 editor_bounds,
8032 scroll_range,
8033 glyph_grid_cell,
8034 } = layout_information;
8035
8036 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
8037 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
8038 Corner::BottomLeft,
8039 editor_bounds.bottom_left(),
8040 size(
8041 if settings_visibility.vertical {
8042 editor_bounds.size.width - scrollbar_width
8043 } else {
8044 editor_bounds.size.width
8045 },
8046 scrollbar_width,
8047 ),
8048 ),
8049 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
8050 Corner::TopRight,
8051 editor_bounds.top_right(),
8052 size(scrollbar_width, editor_bounds.size.height),
8053 ),
8054 };
8055
8056 let mut create_scrollbar_layout = |axis| {
8057 settings_visibility
8058 .along(axis)
8059 .then(|| {
8060 (
8061 editor_bounds.size.along(axis) - content_offset.along(axis),
8062 scroll_range.along(axis),
8063 )
8064 })
8065 .filter(|(editor_content_size, scroll_range)| {
8066 // The scrollbar should only be rendered if the content does
8067 // not entirely fit into the editor
8068 // However, this only applies to the horizontal scrollbar, as information about the
8069 // vertical scrollbar layout is always needed for scrollbar diagnostics.
8070 axis != ScrollbarAxis::Horizontal || editor_content_size < scroll_range
8071 })
8072 .map(|(editor_content_size, scroll_range)| {
8073 ScrollbarLayout::new(
8074 window.insert_hitbox(scrollbar_bounds_for(axis), false),
8075 editor_content_size,
8076 scroll_range,
8077 glyph_grid_cell.along(axis),
8078 content_offset.along(axis),
8079 scroll_position.along(axis),
8080 axis,
8081 )
8082 })
8083 };
8084
8085 Self {
8086 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
8087 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
8088 visible: show_scrollbars,
8089 }
8090 }
8091
8092 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
8093 [
8094 (&self.vertical, ScrollbarAxis::Vertical),
8095 (&self.horizontal, ScrollbarAxis::Horizontal),
8096 ]
8097 .into_iter()
8098 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
8099 }
8100
8101 /// Returns the currently hovered scrollbar axis, if any.
8102 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
8103 self.iter_scrollbars()
8104 .find(|s| s.0.hitbox.is_hovered(window))
8105 }
8106}
8107
8108#[derive(Clone)]
8109struct ScrollbarLayout {
8110 hitbox: Hitbox,
8111 visible_range: Range<f32>,
8112 text_unit_size: Pixels,
8113 content_offset: Pixels,
8114 thumb_size: Pixels,
8115 axis: ScrollbarAxis,
8116}
8117
8118impl ScrollbarLayout {
8119 const BORDER_WIDTH: Pixels = px(1.0);
8120 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
8121 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
8122 const MIN_THUMB_SIZE: Pixels = px(25.0);
8123
8124 fn new(
8125 scrollbar_track_hitbox: Hitbox,
8126 editor_content_size: Pixels,
8127 scroll_range: Pixels,
8128 glyph_space: Pixels,
8129 content_offset: Pixels,
8130 scroll_position: f32,
8131 axis: ScrollbarAxis,
8132 ) -> Self {
8133 let track_bounds = scrollbar_track_hitbox.bounds;
8134 // The length of the track available to the scrollbar thumb. We deliberately
8135 // exclude the content size here so that the thumb aligns with the content.
8136 let track_length = track_bounds.size.along(axis) - content_offset;
8137
8138 let text_units_per_page = editor_content_size / glyph_space;
8139 let visible_range = scroll_position..scroll_position + text_units_per_page;
8140 let total_text_units = scroll_range / glyph_space;
8141
8142 let thumb_percentage = text_units_per_page / total_text_units;
8143 let thumb_size = (track_length * thumb_percentage)
8144 .max(ScrollbarLayout::MIN_THUMB_SIZE)
8145 .min(track_length);
8146 let text_unit_size =
8147 (track_length - thumb_size) / (total_text_units - text_units_per_page).max(0.);
8148
8149 ScrollbarLayout {
8150 hitbox: scrollbar_track_hitbox,
8151 visible_range,
8152 text_unit_size,
8153 content_offset,
8154 thumb_size,
8155 axis,
8156 }
8157 }
8158
8159 fn thumb_bounds(&self) -> Bounds<Pixels> {
8160 let scrollbar_track = &self.hitbox.bounds;
8161 Bounds::new(
8162 scrollbar_track
8163 .origin
8164 .apply_along(self.axis, |origin| self.thumb_origin(origin)),
8165 scrollbar_track
8166 .size
8167 .apply_along(self.axis, |_| self.thumb_size),
8168 )
8169 }
8170
8171 fn thumb_origin(&self, origin: Pixels) -> Pixels {
8172 origin + self.content_offset + self.visible_range.start * self.text_unit_size
8173 }
8174
8175 fn marker_quads_for_ranges(
8176 &self,
8177 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
8178 column: Option<usize>,
8179 ) -> Vec<PaintQuad> {
8180 struct MinMax {
8181 min: Pixels,
8182 max: Pixels,
8183 }
8184 let (x_range, height_limit) = if let Some(column) = column {
8185 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
8186 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
8187 let end = start + column_width;
8188 (
8189 Range { start, end },
8190 MinMax {
8191 min: Self::MIN_MARKER_HEIGHT,
8192 max: px(f32::MAX),
8193 },
8194 )
8195 } else {
8196 (
8197 Range {
8198 start: Self::BORDER_WIDTH,
8199 end: self.hitbox.size.width,
8200 },
8201 MinMax {
8202 min: Self::LINE_MARKER_HEIGHT,
8203 max: Self::LINE_MARKER_HEIGHT,
8204 },
8205 )
8206 };
8207
8208 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
8209 let mut pixel_ranges = row_ranges
8210 .into_iter()
8211 .map(|range| {
8212 let start_y = row_to_y(range.start);
8213 let end_y = row_to_y(range.end)
8214 + self
8215 .text_unit_size
8216 .max(height_limit.min)
8217 .min(height_limit.max);
8218 ColoredRange {
8219 start: start_y,
8220 end: end_y,
8221 color: range.color,
8222 }
8223 })
8224 .peekable();
8225
8226 let mut quads = Vec::new();
8227 while let Some(mut pixel_range) = pixel_ranges.next() {
8228 while let Some(next_pixel_range) = pixel_ranges.peek() {
8229 if pixel_range.end >= next_pixel_range.start - px(1.0)
8230 && pixel_range.color == next_pixel_range.color
8231 {
8232 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
8233 pixel_ranges.next();
8234 } else {
8235 break;
8236 }
8237 }
8238
8239 let bounds = Bounds::from_corners(
8240 point(x_range.start, pixel_range.start),
8241 point(x_range.end, pixel_range.end),
8242 );
8243 quads.push(quad(
8244 bounds,
8245 Corners::default(),
8246 pixel_range.color,
8247 Edges::default(),
8248 Hsla::transparent_black(),
8249 BorderStyle::default(),
8250 ));
8251 }
8252
8253 quads
8254 }
8255}
8256
8257struct CreaseTrailerLayout {
8258 element: AnyElement,
8259 bounds: Bounds<Pixels>,
8260}
8261
8262pub(crate) struct PositionMap {
8263 pub size: Size<Pixels>,
8264 pub line_height: Pixels,
8265 pub scroll_pixel_position: gpui::Point<Pixels>,
8266 pub scroll_max: gpui::Point<f32>,
8267 pub em_width: Pixels,
8268 pub em_advance: Pixels,
8269 pub visible_row_range: Range<DisplayRow>,
8270 pub line_layouts: Vec<LineWithInvisibles>,
8271 pub snapshot: EditorSnapshot,
8272 pub text_hitbox: Hitbox,
8273 pub gutter_hitbox: Hitbox,
8274}
8275
8276#[derive(Debug, Copy, Clone)]
8277pub struct PointForPosition {
8278 pub previous_valid: DisplayPoint,
8279 pub next_valid: DisplayPoint,
8280 pub exact_unclipped: DisplayPoint,
8281 pub column_overshoot_after_line_end: u32,
8282}
8283
8284impl PointForPosition {
8285 pub fn as_valid(&self) -> Option<DisplayPoint> {
8286 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
8287 Some(self.previous_valid)
8288 } else {
8289 None
8290 }
8291 }
8292}
8293
8294impl PositionMap {
8295 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
8296 let text_bounds = self.text_hitbox.bounds;
8297 let scroll_position = self.snapshot.scroll_position();
8298 let position = position - text_bounds.origin;
8299 let y = position.y.max(px(0.)).min(self.size.height);
8300 let x = position.x + (scroll_position.x * self.em_width);
8301 let row = ((y / self.line_height) + scroll_position.y) as u32;
8302
8303 let (column, x_overshoot_after_line_end) = if let Some(line) = self
8304 .line_layouts
8305 .get(row as usize - scroll_position.y as usize)
8306 {
8307 if let Some(ix) = line.index_for_x(x) {
8308 (ix as u32, px(0.))
8309 } else {
8310 (line.len as u32, px(0.).max(x - line.width))
8311 }
8312 } else {
8313 (0, x)
8314 };
8315
8316 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
8317 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
8318 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
8319
8320 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
8321 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
8322 PointForPosition {
8323 previous_valid,
8324 next_valid,
8325 exact_unclipped,
8326 column_overshoot_after_line_end,
8327 }
8328 }
8329}
8330
8331struct BlockLayout {
8332 id: BlockId,
8333 x_offset: Pixels,
8334 row: Option<DisplayRow>,
8335 element: AnyElement,
8336 available_space: Size<AvailableSpace>,
8337 style: BlockStyle,
8338 overlaps_gutter: bool,
8339 is_buffer_header: bool,
8340}
8341
8342pub fn layout_line(
8343 row: DisplayRow,
8344 snapshot: &EditorSnapshot,
8345 style: &EditorStyle,
8346 text_width: Pixels,
8347 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8348 window: &mut Window,
8349 cx: &mut App,
8350) -> LineWithInvisibles {
8351 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
8352 LineWithInvisibles::from_chunks(
8353 chunks,
8354 &style,
8355 MAX_LINE_LEN,
8356 1,
8357 snapshot.mode,
8358 text_width,
8359 is_row_soft_wrapped,
8360 window,
8361 cx,
8362 )
8363 .pop()
8364 .unwrap()
8365}
8366
8367#[derive(Debug)]
8368pub struct IndentGuideLayout {
8369 origin: gpui::Point<Pixels>,
8370 length: Pixels,
8371 single_indent_width: Pixels,
8372 depth: u32,
8373 active: bool,
8374 settings: IndentGuideSettings,
8375}
8376
8377pub struct CursorLayout {
8378 origin: gpui::Point<Pixels>,
8379 block_width: Pixels,
8380 line_height: Pixels,
8381 color: Hsla,
8382 shape: CursorShape,
8383 block_text: Option<ShapedLine>,
8384 cursor_name: Option<AnyElement>,
8385}
8386
8387#[derive(Debug)]
8388pub struct CursorName {
8389 string: SharedString,
8390 color: Hsla,
8391 is_top_row: bool,
8392}
8393
8394impl CursorLayout {
8395 pub fn new(
8396 origin: gpui::Point<Pixels>,
8397 block_width: Pixels,
8398 line_height: Pixels,
8399 color: Hsla,
8400 shape: CursorShape,
8401 block_text: Option<ShapedLine>,
8402 ) -> CursorLayout {
8403 CursorLayout {
8404 origin,
8405 block_width,
8406 line_height,
8407 color,
8408 shape,
8409 block_text,
8410 cursor_name: None,
8411 }
8412 }
8413
8414 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8415 Bounds {
8416 origin: self.origin + origin,
8417 size: size(self.block_width, self.line_height),
8418 }
8419 }
8420
8421 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8422 match self.shape {
8423 CursorShape::Bar => Bounds {
8424 origin: self.origin + origin,
8425 size: size(px(2.0), self.line_height),
8426 },
8427 CursorShape::Block | CursorShape::Hollow => Bounds {
8428 origin: self.origin + origin,
8429 size: size(self.block_width, self.line_height),
8430 },
8431 CursorShape::Underline => Bounds {
8432 origin: self.origin
8433 + origin
8434 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8435 size: size(self.block_width, px(2.0)),
8436 },
8437 }
8438 }
8439
8440 pub fn layout(
8441 &mut self,
8442 origin: gpui::Point<Pixels>,
8443 cursor_name: Option<CursorName>,
8444 window: &mut Window,
8445 cx: &mut App,
8446 ) {
8447 if let Some(cursor_name) = cursor_name {
8448 let bounds = self.bounds(origin);
8449 let text_size = self.line_height / 1.5;
8450
8451 let name_origin = if cursor_name.is_top_row {
8452 point(bounds.right() - px(1.), bounds.top())
8453 } else {
8454 match self.shape {
8455 CursorShape::Bar => point(
8456 bounds.right() - px(2.),
8457 bounds.top() - text_size / 2. - px(1.),
8458 ),
8459 _ => point(
8460 bounds.right() - px(1.),
8461 bounds.top() - text_size / 2. - px(1.),
8462 ),
8463 }
8464 };
8465 let mut name_element = div()
8466 .bg(self.color)
8467 .text_size(text_size)
8468 .px_0p5()
8469 .line_height(text_size + px(2.))
8470 .text_color(cursor_name.color)
8471 .child(cursor_name.string.clone())
8472 .into_any_element();
8473
8474 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8475
8476 self.cursor_name = Some(name_element);
8477 }
8478 }
8479
8480 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8481 let bounds = self.bounds(origin);
8482
8483 //Draw background or border quad
8484 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8485 outline(bounds, self.color, BorderStyle::Solid)
8486 } else {
8487 fill(bounds, self.color)
8488 };
8489
8490 if let Some(name) = &mut self.cursor_name {
8491 name.paint(window, cx);
8492 }
8493
8494 window.paint_quad(cursor);
8495
8496 if let Some(block_text) = &self.block_text {
8497 block_text
8498 .paint(self.origin + origin, self.line_height, window, cx)
8499 .log_err();
8500 }
8501 }
8502
8503 pub fn shape(&self) -> CursorShape {
8504 self.shape
8505 }
8506}
8507
8508#[derive(Debug)]
8509pub struct HighlightedRange {
8510 pub start_y: Pixels,
8511 pub line_height: Pixels,
8512 pub lines: Vec<HighlightedRangeLine>,
8513 pub color: Hsla,
8514 pub corner_radius: Pixels,
8515}
8516
8517#[derive(Debug)]
8518pub struct HighlightedRangeLine {
8519 pub start_x: Pixels,
8520 pub end_x: Pixels,
8521}
8522
8523impl HighlightedRange {
8524 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8525 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8526 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8527 self.paint_lines(
8528 self.start_y + self.line_height,
8529 &self.lines[1..],
8530 bounds,
8531 window,
8532 );
8533 } else {
8534 self.paint_lines(self.start_y, &self.lines, bounds, window);
8535 }
8536 }
8537
8538 fn paint_lines(
8539 &self,
8540 start_y: Pixels,
8541 lines: &[HighlightedRangeLine],
8542 _bounds: Bounds<Pixels>,
8543 window: &mut Window,
8544 ) {
8545 if lines.is_empty() {
8546 return;
8547 }
8548
8549 let first_line = lines.first().unwrap();
8550 let last_line = lines.last().unwrap();
8551
8552 let first_top_left = point(first_line.start_x, start_y);
8553 let first_top_right = point(first_line.end_x, start_y);
8554
8555 let curve_height = point(Pixels::ZERO, self.corner_radius);
8556 let curve_width = |start_x: Pixels, end_x: Pixels| {
8557 let max = (end_x - start_x) / 2.;
8558 let width = if max < self.corner_radius {
8559 max
8560 } else {
8561 self.corner_radius
8562 };
8563
8564 point(width, Pixels::ZERO)
8565 };
8566
8567 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8568 let mut builder = gpui::PathBuilder::fill();
8569 builder.move_to(first_top_right - top_curve_width);
8570 builder.curve_to(first_top_right + curve_height, first_top_right);
8571
8572 let mut iter = lines.iter().enumerate().peekable();
8573 while let Some((ix, line)) = iter.next() {
8574 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8575
8576 if let Some((_, next_line)) = iter.peek() {
8577 let next_top_right = point(next_line.end_x, bottom_right.y);
8578
8579 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8580 Ordering::Equal => {
8581 builder.line_to(bottom_right);
8582 }
8583 Ordering::Less => {
8584 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8585 builder.line_to(bottom_right - curve_height);
8586 if self.corner_radius > Pixels::ZERO {
8587 builder.curve_to(bottom_right - curve_width, bottom_right);
8588 }
8589 builder.line_to(next_top_right + curve_width);
8590 if self.corner_radius > Pixels::ZERO {
8591 builder.curve_to(next_top_right + curve_height, next_top_right);
8592 }
8593 }
8594 Ordering::Greater => {
8595 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8596 builder.line_to(bottom_right - curve_height);
8597 if self.corner_radius > Pixels::ZERO {
8598 builder.curve_to(bottom_right + curve_width, bottom_right);
8599 }
8600 builder.line_to(next_top_right - curve_width);
8601 if self.corner_radius > Pixels::ZERO {
8602 builder.curve_to(next_top_right + curve_height, next_top_right);
8603 }
8604 }
8605 }
8606 } else {
8607 let curve_width = curve_width(line.start_x, line.end_x);
8608 builder.line_to(bottom_right - curve_height);
8609 if self.corner_radius > Pixels::ZERO {
8610 builder.curve_to(bottom_right - curve_width, bottom_right);
8611 }
8612
8613 let bottom_left = point(line.start_x, bottom_right.y);
8614 builder.line_to(bottom_left + curve_width);
8615 if self.corner_radius > Pixels::ZERO {
8616 builder.curve_to(bottom_left - curve_height, bottom_left);
8617 }
8618 }
8619 }
8620
8621 if first_line.start_x > last_line.start_x {
8622 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8623 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8624 builder.line_to(second_top_left + curve_height);
8625 if self.corner_radius > Pixels::ZERO {
8626 builder.curve_to(second_top_left + curve_width, second_top_left);
8627 }
8628 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8629 builder.line_to(first_bottom_left - curve_width);
8630 if self.corner_radius > Pixels::ZERO {
8631 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8632 }
8633 }
8634
8635 builder.line_to(first_top_left + curve_height);
8636 if self.corner_radius > Pixels::ZERO {
8637 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8638 }
8639 builder.line_to(first_top_right - top_curve_width);
8640
8641 if let Ok(path) = builder.build() {
8642 window.paint_path(path, self.color);
8643 }
8644 }
8645}
8646
8647enum CursorPopoverType {
8648 CodeContextMenu,
8649 EditPrediction,
8650}
8651
8652pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8653 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
8654}
8655
8656fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8657 (delta.pow(1.2) / 300.0).into()
8658}
8659
8660pub fn register_action<T: Action>(
8661 editor: &Entity<Editor>,
8662 window: &mut Window,
8663 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8664) {
8665 let editor = editor.clone();
8666 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8667 let action = action.downcast_ref().unwrap();
8668 if phase == DispatchPhase::Bubble {
8669 editor.update(cx, |editor, cx| {
8670 listener(editor, action, window, cx);
8671 })
8672 }
8673 })
8674}
8675
8676fn compute_auto_height_layout(
8677 editor: &mut Editor,
8678 max_lines: usize,
8679 max_line_number_width: Pixels,
8680 known_dimensions: Size<Option<Pixels>>,
8681 available_width: AvailableSpace,
8682 window: &mut Window,
8683 cx: &mut Context<Editor>,
8684) -> Option<Size<Pixels>> {
8685 let width = known_dimensions.width.or({
8686 if let AvailableSpace::Definite(available_width) = available_width {
8687 Some(available_width)
8688 } else {
8689 None
8690 }
8691 })?;
8692 if let Some(height) = known_dimensions.height {
8693 return Some(size(width, height));
8694 }
8695
8696 let style = editor.style.as_ref().unwrap();
8697 let font_id = window.text_system().resolve_font(&style.text.font());
8698 let font_size = style.text.font_size.to_pixels(window.rem_size());
8699 let line_height = style.text.line_height_in_pixels(window.rem_size());
8700 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8701
8702 let mut snapshot = editor.snapshot(window, cx);
8703 let gutter_dimensions = snapshot
8704 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8705 .unwrap_or_default();
8706
8707 editor.gutter_dimensions = gutter_dimensions;
8708 let text_width = width - gutter_dimensions.width;
8709 let overscroll = size(em_width, px(0.));
8710
8711 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8712 if editor.set_wrap_width(Some(editor_width), cx) {
8713 snapshot = editor.snapshot(window, cx);
8714 }
8715
8716 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
8717 let height = scroll_height
8718 .max(line_height)
8719 .min(line_height * max_lines as f32);
8720
8721 Some(size(width, height))
8722}
8723
8724#[cfg(test)]
8725mod tests {
8726 use super::*;
8727 use crate::{
8728 Editor, MultiBuffer,
8729 display_map::{BlockPlacement, BlockProperties},
8730 editor_tests::{init_test, update_test_language_settings},
8731 };
8732 use gpui::{TestAppContext, VisualTestContext};
8733 use language::language_settings;
8734 use log::info;
8735 use std::num::NonZeroU32;
8736 use util::test::sample_text;
8737
8738 #[gpui::test]
8739 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8740 init_test(cx, |_| {});
8741 let window = cx.add_window(|window, cx| {
8742 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8743 Editor::new(EditorMode::full(), buffer, None, window, cx)
8744 });
8745
8746 let editor = window.root(cx).unwrap();
8747 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8748 let line_height = window
8749 .update(cx, |_, window, _| {
8750 style.text.line_height_in_pixels(window.rem_size())
8751 })
8752 .unwrap();
8753 let element = EditorElement::new(&editor, style);
8754 let snapshot = window
8755 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8756 .unwrap();
8757
8758 let layouts = cx
8759 .update_window(*window, |_, window, cx| {
8760 element.layout_line_numbers(
8761 None,
8762 GutterDimensions {
8763 left_padding: Pixels::ZERO,
8764 right_padding: Pixels::ZERO,
8765 width: px(30.0),
8766 margin: Pixels::ZERO,
8767 git_blame_entries_width: None,
8768 },
8769 line_height,
8770 gpui::Point::default(),
8771 DisplayRow(0)..DisplayRow(6),
8772 &(0..6)
8773 .map(|row| RowInfo {
8774 buffer_row: Some(row),
8775 ..Default::default()
8776 })
8777 .collect::<Vec<_>>(),
8778 &BTreeMap::default(),
8779 Some(DisplayPoint::new(DisplayRow(0), 0)),
8780 &snapshot,
8781 window,
8782 cx,
8783 )
8784 })
8785 .unwrap();
8786 assert_eq!(layouts.len(), 6);
8787
8788 let relative_rows = window
8789 .update(cx, |editor, window, cx| {
8790 let snapshot = editor.snapshot(window, cx);
8791 element.calculate_relative_line_numbers(
8792 &snapshot,
8793 &(DisplayRow(0)..DisplayRow(6)),
8794 Some(DisplayRow(3)),
8795 )
8796 })
8797 .unwrap();
8798 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8799 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8800 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8801 // current line has no relative number
8802 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8803 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8804
8805 // works if cursor is before screen
8806 let relative_rows = window
8807 .update(cx, |editor, window, cx| {
8808 let snapshot = editor.snapshot(window, cx);
8809 element.calculate_relative_line_numbers(
8810 &snapshot,
8811 &(DisplayRow(3)..DisplayRow(6)),
8812 Some(DisplayRow(1)),
8813 )
8814 })
8815 .unwrap();
8816 assert_eq!(relative_rows.len(), 3);
8817 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8818 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8819 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8820
8821 // works if cursor is after screen
8822 let relative_rows = window
8823 .update(cx, |editor, window, cx| {
8824 let snapshot = editor.snapshot(window, cx);
8825 element.calculate_relative_line_numbers(
8826 &snapshot,
8827 &(DisplayRow(0)..DisplayRow(3)),
8828 Some(DisplayRow(6)),
8829 )
8830 })
8831 .unwrap();
8832 assert_eq!(relative_rows.len(), 3);
8833 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8834 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8835 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8836 }
8837
8838 #[gpui::test]
8839 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8840 init_test(cx, |_| {});
8841
8842 let window = cx.add_window(|window, cx| {
8843 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8844 Editor::new(EditorMode::full(), buffer, None, window, cx)
8845 });
8846 let cx = &mut VisualTestContext::from_window(*window, cx);
8847 let editor = window.root(cx).unwrap();
8848 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8849
8850 window
8851 .update(cx, |editor, window, cx| {
8852 editor.cursor_shape = CursorShape::Block;
8853 editor.change_selections(None, window, cx, |s| {
8854 s.select_ranges([
8855 Point::new(0, 0)..Point::new(1, 0),
8856 Point::new(3, 2)..Point::new(3, 3),
8857 Point::new(5, 6)..Point::new(6, 0),
8858 ]);
8859 });
8860 })
8861 .unwrap();
8862
8863 let (_, state) = cx.draw(
8864 point(px(500.), px(500.)),
8865 size(px(500.), px(500.)),
8866 |_, _| EditorElement::new(&editor, style),
8867 );
8868
8869 assert_eq!(state.selections.len(), 1);
8870 let local_selections = &state.selections[0].1;
8871 assert_eq!(local_selections.len(), 3);
8872 // moves cursor back one line
8873 assert_eq!(
8874 local_selections[0].head,
8875 DisplayPoint::new(DisplayRow(0), 6)
8876 );
8877 assert_eq!(
8878 local_selections[0].range,
8879 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8880 );
8881
8882 // moves cursor back one column
8883 assert_eq!(
8884 local_selections[1].range,
8885 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8886 );
8887 assert_eq!(
8888 local_selections[1].head,
8889 DisplayPoint::new(DisplayRow(3), 2)
8890 );
8891
8892 // leaves cursor on the max point
8893 assert_eq!(
8894 local_selections[2].range,
8895 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8896 );
8897 assert_eq!(
8898 local_selections[2].head,
8899 DisplayPoint::new(DisplayRow(6), 0)
8900 );
8901
8902 // active lines does not include 1 (even though the range of the selection does)
8903 assert_eq!(
8904 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8905 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8906 );
8907 }
8908
8909 #[gpui::test]
8910 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8911 init_test(cx, |_| {});
8912
8913 let window = cx.add_window(|window, cx| {
8914 let buffer = MultiBuffer::build_simple("", cx);
8915 Editor::new(EditorMode::full(), buffer, None, window, cx)
8916 });
8917 let cx = &mut VisualTestContext::from_window(*window, cx);
8918 let editor = window.root(cx).unwrap();
8919 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8920 window
8921 .update(cx, |editor, window, cx| {
8922 editor.set_placeholder_text("hello", cx);
8923 editor.insert_blocks(
8924 [BlockProperties {
8925 style: BlockStyle::Fixed,
8926 placement: BlockPlacement::Above(Anchor::min()),
8927 height: Some(3),
8928 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8929 priority: 0,
8930 }],
8931 None,
8932 cx,
8933 );
8934
8935 // Blur the editor so that it displays placeholder text.
8936 window.blur();
8937 })
8938 .unwrap();
8939
8940 let (_, state) = cx.draw(
8941 point(px(500.), px(500.)),
8942 size(px(500.), px(500.)),
8943 |_, _| EditorElement::new(&editor, style),
8944 );
8945 assert_eq!(state.position_map.line_layouts.len(), 4);
8946 assert_eq!(state.line_numbers.len(), 1);
8947 assert_eq!(
8948 state
8949 .line_numbers
8950 .get(&MultiBufferRow(0))
8951 .map(|line_number| line_number.shaped_line.text.as_ref()),
8952 Some("1")
8953 );
8954 }
8955
8956 #[gpui::test]
8957 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8958 const TAB_SIZE: u32 = 4;
8959
8960 let input_text = "\t \t|\t| a b";
8961 let expected_invisibles = vec![
8962 Invisible::Tab {
8963 line_start_offset: 0,
8964 line_end_offset: TAB_SIZE as usize,
8965 },
8966 Invisible::Whitespace {
8967 line_offset: TAB_SIZE as usize,
8968 },
8969 Invisible::Tab {
8970 line_start_offset: TAB_SIZE as usize + 1,
8971 line_end_offset: TAB_SIZE as usize * 2,
8972 },
8973 Invisible::Tab {
8974 line_start_offset: TAB_SIZE as usize * 2 + 1,
8975 line_end_offset: TAB_SIZE as usize * 3,
8976 },
8977 Invisible::Whitespace {
8978 line_offset: TAB_SIZE as usize * 3 + 1,
8979 },
8980 Invisible::Whitespace {
8981 line_offset: TAB_SIZE as usize * 3 + 3,
8982 },
8983 ];
8984 assert_eq!(
8985 expected_invisibles.len(),
8986 input_text
8987 .chars()
8988 .filter(|initial_char| initial_char.is_whitespace())
8989 .count(),
8990 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8991 );
8992
8993 for show_line_numbers in [true, false] {
8994 init_test(cx, |s| {
8995 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8996 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8997 });
8998
8999 let actual_invisibles = collect_invisibles_from_new_editor(
9000 cx,
9001 EditorMode::full(),
9002 input_text,
9003 px(500.0),
9004 show_line_numbers,
9005 );
9006
9007 assert_eq!(expected_invisibles, actual_invisibles);
9008 }
9009 }
9010
9011 #[gpui::test]
9012 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
9013 init_test(cx, |s| {
9014 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
9015 s.defaults.tab_size = NonZeroU32::new(4);
9016 });
9017
9018 for editor_mode_without_invisibles in [
9019 EditorMode::SingleLine { auto_width: false },
9020 EditorMode::AutoHeight { max_lines: 100 },
9021 ] {
9022 for show_line_numbers in [true, false] {
9023 let invisibles = collect_invisibles_from_new_editor(
9024 cx,
9025 editor_mode_without_invisibles,
9026 "\t\t\t| | a b",
9027 px(500.0),
9028 show_line_numbers,
9029 );
9030 assert!(
9031 invisibles.is_empty(),
9032 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
9033 );
9034 }
9035 }
9036 }
9037
9038 #[gpui::test]
9039 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
9040 let tab_size = 4;
9041 let input_text = "a\tbcd ".repeat(9);
9042 let repeated_invisibles = [
9043 Invisible::Tab {
9044 line_start_offset: 1,
9045 line_end_offset: tab_size as usize,
9046 },
9047 Invisible::Whitespace {
9048 line_offset: tab_size as usize + 3,
9049 },
9050 Invisible::Whitespace {
9051 line_offset: tab_size as usize + 4,
9052 },
9053 Invisible::Whitespace {
9054 line_offset: tab_size as usize + 5,
9055 },
9056 Invisible::Whitespace {
9057 line_offset: tab_size as usize + 6,
9058 },
9059 Invisible::Whitespace {
9060 line_offset: tab_size as usize + 7,
9061 },
9062 ];
9063 let expected_invisibles = std::iter::once(repeated_invisibles)
9064 .cycle()
9065 .take(9)
9066 .flatten()
9067 .collect::<Vec<_>>();
9068 assert_eq!(
9069 expected_invisibles.len(),
9070 input_text
9071 .chars()
9072 .filter(|initial_char| initial_char.is_whitespace())
9073 .count(),
9074 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
9075 );
9076 info!("Expected invisibles: {expected_invisibles:?}");
9077
9078 init_test(cx, |_| {});
9079
9080 // Put the same string with repeating whitespace pattern into editors of various size,
9081 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
9082 let resize_step = 10.0;
9083 let mut editor_width = 200.0;
9084 while editor_width <= 1000.0 {
9085 for show_line_numbers in [true, false] {
9086 update_test_language_settings(cx, |s| {
9087 s.defaults.tab_size = NonZeroU32::new(tab_size);
9088 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
9089 s.defaults.preferred_line_length = Some(editor_width as u32);
9090 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
9091 });
9092
9093 let actual_invisibles = collect_invisibles_from_new_editor(
9094 cx,
9095 EditorMode::full(),
9096 &input_text,
9097 px(editor_width),
9098 show_line_numbers,
9099 );
9100
9101 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
9102 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
9103 let mut i = 0;
9104 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
9105 i = actual_index;
9106 match expected_invisibles.get(i) {
9107 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
9108 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
9109 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
9110 _ => {
9111 panic!(
9112 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
9113 )
9114 }
9115 },
9116 None => {
9117 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
9118 }
9119 }
9120 }
9121 let missing_expected_invisibles = &expected_invisibles[i + 1..];
9122 assert!(
9123 missing_expected_invisibles.is_empty(),
9124 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
9125 );
9126
9127 editor_width += resize_step;
9128 }
9129 }
9130 }
9131
9132 fn collect_invisibles_from_new_editor(
9133 cx: &mut TestAppContext,
9134 editor_mode: EditorMode,
9135 input_text: &str,
9136 editor_width: Pixels,
9137 show_line_numbers: bool,
9138 ) -> Vec<Invisible> {
9139 info!(
9140 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
9141 editor_width.0
9142 );
9143 let window = cx.add_window(|window, cx| {
9144 let buffer = MultiBuffer::build_simple(input_text, cx);
9145 Editor::new(editor_mode, buffer, None, window, cx)
9146 });
9147 let cx = &mut VisualTestContext::from_window(*window, cx);
9148 let editor = window.root(cx).unwrap();
9149
9150 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
9151 window
9152 .update(cx, |editor, _, cx| {
9153 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
9154 editor.set_wrap_width(Some(editor_width), cx);
9155 editor.set_show_line_numbers(show_line_numbers, cx);
9156 })
9157 .unwrap();
9158 let (_, state) = cx.draw(
9159 point(px(500.), px(500.)),
9160 size(px(500.), px(500.)),
9161 |_, _| EditorElement::new(&editor, style),
9162 );
9163 state
9164 .position_map
9165 .line_layouts
9166 .iter()
9167 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
9168 .cloned()
9169 .collect()
9170 }
9171}