1use crate::{
2 ActiveDiagnostic, BlockId, CURSORS_VISIBLE_FOR, ChunkRendererContext, ChunkReplacement,
3 CodeActionSource, ColumnarMode, ConflictsOurs, ConflictsOursMarker, ConflictsOuter,
4 ConflictsTheirs, ConflictsTheirsMarker, ContextMenuPlacement, CursorShape, CustomBlockId,
5 DisplayDiffHunk, DisplayPoint, DisplayRow, 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, MINIMAP_FONT_SIZE, MULTI_BUFFER_EXCERPT_HEADER_HEIGHT, OpenExcerpts,
10 PageDown, PageUp, PhantomBreakpointIndicator, Point, RowExt, RowRangeExt, SelectPhase,
11 SelectedTextHighlight, Selection, SelectionDragState, SoftWrap, StickyHeaderExcerpt, ToPoint,
12 ToggleFold,
13 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
14 display_map::{
15 Block, BlockContext, BlockStyle, ChunkRendererId, DisplaySnapshot, EditorMargins,
16 HighlightKey, HighlightedChunk, ToDisplayPoint,
17 },
18 editor_settings::{
19 CurrentLineHighlight, DocumentColorsRenderMode, DoubleClickInMultibuffer, Minimap,
20 MinimapThumb, MinimapThumbBorder, ScrollBeyondLastLine, ScrollbarAxes,
21 ScrollbarDiagnostics, ShowMinimap, ShowScrollbar,
22 },
23 git::blame::{BlameRenderer, GitBlame, GlobalBlameRenderer},
24 hover_popover::{
25 self, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
26 POPOVER_RIGHT_OFFSET, hover_at,
27 },
28 inlay_hint_settings,
29 items::BufferSearchHighlights,
30 mouse_context_menu::{self, MenuPosition},
31 scroll::{ActiveScrollbarState, ScrollbarThumbState, scroll_amount::ScrollAmount},
32};
33use buffer_diff::{DiffHunkStatus, DiffHunkStatusKind};
34use collections::{BTreeMap, HashMap};
35use file_icons::FileIcons;
36use git::{
37 Oid,
38 blame::{BlameEntry, ParsedCommitMessage},
39 status::FileStatus,
40};
41use gpui::{
42 Action, Along, AnyElement, App, AppContext, AvailableSpace, Axis as ScrollbarAxis, BorderStyle,
43 Bounds, ClickEvent, ContentMask, Context, Corner, Corners, CursorStyle, DispatchPhase, Edges,
44 Element, ElementInputHandler, Entity, Focusable as _, FontId, GlobalElementId, Hitbox,
45 HitboxBehavior, Hsla, InteractiveElement, IntoElement, IsZero, Keystroke, Length,
46 ModifiersChangedEvent, MouseButton, MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad,
47 ParentElement, Pixels, ScrollDelta, ScrollHandle, ScrollWheelEvent, ShapedLine, SharedString,
48 Size, StatefulInteractiveElement, Style, Styled, TextRun, TextStyleRefinement, WeakEntity,
49 Window, anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline, point, px,
50 quad, relative, size, solid_background, transparent_black,
51};
52use itertools::Itertools;
53use language::language_settings::{
54 IndentGuideBackgroundColoring, IndentGuideColoring, IndentGuideSettings, ShowWhitespaceSetting,
55};
56use markdown::Markdown;
57use multi_buffer::{
58 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, ExpandInfo, MultiBufferPoint,
59 MultiBufferRow, RowInfo,
60};
61
62use project::{
63 ProjectPath,
64 debugger::breakpoint_store::{Breakpoint, BreakpointSessionState},
65 project_settings::{GitGutterSetting, GitHunkStyleSetting, ProjectSettings},
66};
67use settings::Settings;
68use smallvec::{SmallVec, smallvec};
69use std::{
70 any::TypeId,
71 borrow::Cow,
72 cmp::{self, Ordering},
73 fmt::{self, Write},
74 iter, mem,
75 ops::{Deref, Range},
76 rc::Rc,
77 sync::Arc,
78 time::{Duration, Instant},
79};
80use sum_tree::Bias;
81use text::{BufferId, SelectionGoal};
82use theme::{ActiveTheme, Appearance, BufferLineHeight, PlayerColor};
83use ui::{ButtonLike, KeyBinding, POPOVER_Y_PADDING, Tooltip, h_flex, prelude::*};
84use unicode_segmentation::UnicodeSegmentation;
85use util::post_inc;
86use util::{RangeExt, ResultExt, debug_panic};
87use workspace::{CollaboratorId, Workspace, item::Item, notifications::NotifyTaskExt};
88
89const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 7.;
90const SELECTION_DRAG_DELAY: Duration = Duration::from_millis(300);
91
92/// Determines what kinds of highlights should be applied to a lines background.
93#[derive(Clone, Copy, Default)]
94struct LineHighlightSpec {
95 selection: bool,
96 breakpoint: bool,
97 _active_stack_frame: bool,
98}
99
100#[derive(Debug)]
101struct SelectionLayout {
102 head: DisplayPoint,
103 cursor_shape: CursorShape,
104 is_newest: bool,
105 is_local: bool,
106 range: Range<DisplayPoint>,
107 active_rows: Range<DisplayRow>,
108 user_name: Option<SharedString>,
109}
110
111struct InlineBlameLayout {
112 element: AnyElement,
113 bounds: Bounds<Pixels>,
114 entry: BlameEntry,
115}
116
117impl SelectionLayout {
118 fn new<T: ToPoint + ToDisplayPoint + Clone>(
119 selection: Selection<T>,
120 line_mode: bool,
121 cursor_shape: CursorShape,
122 map: &DisplaySnapshot,
123 is_newest: bool,
124 is_local: bool,
125 user_name: Option<SharedString>,
126 ) -> Self {
127 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
128 let display_selection = point_selection.map(|p| p.to_display_point(map));
129 let mut range = display_selection.range();
130 let mut head = display_selection.head();
131 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
132 ..map.next_line_boundary(point_selection.end).1.row();
133
134 // vim visual line mode
135 if line_mode {
136 let point_range = map.expand_to_line(point_selection.range());
137 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
138 }
139
140 // any vim visual mode (including line mode)
141 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
142 && !range.is_empty()
143 && !selection.reversed
144 {
145 if head.column() > 0 {
146 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
147 } else if head.row().0 > 0 && head != map.max_point() {
148 head = map.clip_point(
149 DisplayPoint::new(
150 head.row().previous_row(),
151 map.line_len(head.row().previous_row()),
152 ),
153 Bias::Left,
154 );
155 // updating range.end is a no-op unless you're cursor is
156 // on the newline containing a multi-buffer divider
157 // in which case the clip_point may have moved the head up
158 // an additional row.
159 range.end = DisplayPoint::new(head.row().next_row(), 0);
160 active_rows.end = head.row();
161 }
162 }
163
164 Self {
165 head,
166 cursor_shape,
167 is_newest,
168 is_local,
169 range,
170 active_rows,
171 user_name,
172 }
173 }
174}
175
176pub struct EditorElement {
177 editor: Entity<Editor>,
178 style: EditorStyle,
179}
180
181type DisplayRowDelta = u32;
182
183impl EditorElement {
184 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
185
186 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
187 Self {
188 editor: editor.clone(),
189 style,
190 }
191 }
192
193 fn register_actions(&self, window: &mut Window, cx: &mut App) {
194 let editor = &self.editor;
195 editor.update(cx, |editor, cx| {
196 for action in editor.editor_actions.borrow().values() {
197 (action)(editor, window, cx)
198 }
199 });
200
201 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
202 crate::clangd_ext::apply_related_actions(editor, window, cx);
203
204 register_action(editor, window, Editor::open_context_menu);
205 register_action(editor, window, Editor::move_left);
206 register_action(editor, window, Editor::move_right);
207 register_action(editor, window, Editor::move_down);
208 register_action(editor, window, Editor::move_down_by_lines);
209 register_action(editor, window, Editor::select_down_by_lines);
210 register_action(editor, window, Editor::move_up);
211 register_action(editor, window, Editor::move_up_by_lines);
212 register_action(editor, window, Editor::select_up_by_lines);
213 register_action(editor, window, Editor::select_page_down);
214 register_action(editor, window, Editor::select_page_up);
215 register_action(editor, window, Editor::cancel);
216 register_action(editor, window, Editor::newline);
217 register_action(editor, window, Editor::newline_above);
218 register_action(editor, window, Editor::newline_below);
219 register_action(editor, window, Editor::backspace);
220 register_action(editor, window, Editor::delete);
221 register_action(editor, window, Editor::tab);
222 register_action(editor, window, Editor::backtab);
223 register_action(editor, window, Editor::indent);
224 register_action(editor, window, Editor::outdent);
225 register_action(editor, window, Editor::autoindent);
226 register_action(editor, window, Editor::delete_line);
227 register_action(editor, window, Editor::join_lines);
228 register_action(editor, window, Editor::sort_lines_by_length);
229 register_action(editor, window, Editor::sort_lines_case_sensitive);
230 register_action(editor, window, Editor::sort_lines_case_insensitive);
231 register_action(editor, window, Editor::reverse_lines);
232 register_action(editor, window, Editor::shuffle_lines);
233 register_action(editor, window, Editor::toggle_case);
234 register_action(editor, window, Editor::convert_indentation_to_spaces);
235 register_action(editor, window, Editor::convert_indentation_to_tabs);
236 register_action(editor, window, Editor::convert_to_upper_case);
237 register_action(editor, window, Editor::convert_to_lower_case);
238 register_action(editor, window, Editor::convert_to_title_case);
239 register_action(editor, window, Editor::convert_to_snake_case);
240 register_action(editor, window, Editor::convert_to_kebab_case);
241 register_action(editor, window, Editor::convert_to_upper_camel_case);
242 register_action(editor, window, Editor::convert_to_lower_camel_case);
243 register_action(editor, window, Editor::convert_to_opposite_case);
244 register_action(editor, window, Editor::convert_to_rot13);
245 register_action(editor, window, Editor::convert_to_rot47);
246 register_action(editor, window, Editor::delete_to_previous_word_start);
247 register_action(editor, window, Editor::delete_to_previous_subword_start);
248 register_action(editor, window, Editor::delete_to_next_word_end);
249 register_action(editor, window, Editor::delete_to_next_subword_end);
250 register_action(editor, window, Editor::delete_to_beginning_of_line);
251 register_action(editor, window, Editor::delete_to_end_of_line);
252 register_action(editor, window, Editor::cut_to_end_of_line);
253 register_action(editor, window, Editor::duplicate_line_up);
254 register_action(editor, window, Editor::duplicate_line_down);
255 register_action(editor, window, Editor::duplicate_selection);
256 register_action(editor, window, Editor::move_line_up);
257 register_action(editor, window, Editor::move_line_down);
258 register_action(editor, window, Editor::transpose);
259 register_action(editor, window, Editor::rewrap);
260 register_action(editor, window, Editor::cut);
261 register_action(editor, window, Editor::kill_ring_cut);
262 register_action(editor, window, Editor::kill_ring_yank);
263 register_action(editor, window, Editor::copy);
264 register_action(editor, window, Editor::copy_and_trim);
265 register_action(editor, window, Editor::paste);
266 register_action(editor, window, Editor::undo);
267 register_action(editor, window, Editor::redo);
268 register_action(editor, window, Editor::move_page_up);
269 register_action(editor, window, Editor::move_page_down);
270 register_action(editor, window, Editor::next_screen);
271 register_action(editor, window, Editor::scroll_cursor_top);
272 register_action(editor, window, Editor::scroll_cursor_center);
273 register_action(editor, window, Editor::scroll_cursor_bottom);
274 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
275 register_action(editor, window, |editor, _: &LineDown, window, cx| {
276 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
277 });
278 register_action(editor, window, |editor, _: &LineUp, window, cx| {
279 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
280 });
281 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
282 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
283 });
284 register_action(
285 editor,
286 window,
287 |editor, HandleInput(text): &HandleInput, window, cx| {
288 if text.is_empty() {
289 return;
290 }
291 editor.handle_input(text, window, cx);
292 },
293 );
294 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
295 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
296 });
297 register_action(editor, window, |editor, _: &PageDown, window, cx| {
298 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
299 });
300 register_action(editor, window, |editor, _: &PageUp, window, cx| {
301 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
302 });
303 register_action(editor, window, Editor::move_to_previous_word_start);
304 register_action(editor, window, Editor::move_to_previous_subword_start);
305 register_action(editor, window, Editor::move_to_next_word_end);
306 register_action(editor, window, Editor::move_to_next_subword_end);
307 register_action(editor, window, Editor::move_to_beginning_of_line);
308 register_action(editor, window, Editor::move_to_end_of_line);
309 register_action(editor, window, Editor::move_to_start_of_paragraph);
310 register_action(editor, window, Editor::move_to_end_of_paragraph);
311 register_action(editor, window, Editor::move_to_beginning);
312 register_action(editor, window, Editor::move_to_end);
313 register_action(editor, window, Editor::move_to_start_of_excerpt);
314 register_action(editor, window, Editor::move_to_start_of_next_excerpt);
315 register_action(editor, window, Editor::move_to_end_of_excerpt);
316 register_action(editor, window, Editor::move_to_end_of_previous_excerpt);
317 register_action(editor, window, Editor::select_up);
318 register_action(editor, window, Editor::select_down);
319 register_action(editor, window, Editor::select_left);
320 register_action(editor, window, Editor::select_right);
321 register_action(editor, window, Editor::select_to_previous_word_start);
322 register_action(editor, window, Editor::select_to_previous_subword_start);
323 register_action(editor, window, Editor::select_to_next_word_end);
324 register_action(editor, window, Editor::select_to_next_subword_end);
325 register_action(editor, window, Editor::select_to_beginning_of_line);
326 register_action(editor, window, Editor::select_to_end_of_line);
327 register_action(editor, window, Editor::select_to_start_of_paragraph);
328 register_action(editor, window, Editor::select_to_end_of_paragraph);
329 register_action(editor, window, Editor::select_to_start_of_excerpt);
330 register_action(editor, window, Editor::select_to_start_of_next_excerpt);
331 register_action(editor, window, Editor::select_to_end_of_excerpt);
332 register_action(editor, window, Editor::select_to_end_of_previous_excerpt);
333 register_action(editor, window, Editor::select_to_beginning);
334 register_action(editor, window, Editor::select_to_end);
335 register_action(editor, window, Editor::select_all);
336 register_action(editor, window, |editor, action, window, cx| {
337 editor.select_all_matches(action, window, cx).log_err();
338 });
339 register_action(editor, window, Editor::select_line);
340 register_action(editor, window, Editor::split_selection_into_lines);
341 register_action(editor, window, Editor::add_selection_above);
342 register_action(editor, window, Editor::add_selection_below);
343 register_action(editor, window, |editor, action, window, cx| {
344 editor.select_next(action, window, cx).log_err();
345 });
346 register_action(editor, window, |editor, action, window, cx| {
347 editor.select_previous(action, window, cx).log_err();
348 });
349 register_action(editor, window, |editor, action, window, cx| {
350 editor.find_next_match(action, window, cx).log_err();
351 });
352 register_action(editor, window, |editor, action, window, cx| {
353 editor.find_previous_match(action, window, cx).log_err();
354 });
355 register_action(editor, window, Editor::toggle_comments);
356 register_action(editor, window, Editor::select_larger_syntax_node);
357 register_action(editor, window, Editor::select_smaller_syntax_node);
358 register_action(editor, window, Editor::select_enclosing_symbol);
359 register_action(editor, window, Editor::move_to_enclosing_bracket);
360 register_action(editor, window, Editor::undo_selection);
361 register_action(editor, window, Editor::redo_selection);
362 if !editor.read(cx).is_singleton(cx) {
363 register_action(editor, window, Editor::expand_excerpts);
364 register_action(editor, window, Editor::expand_excerpts_up);
365 register_action(editor, window, Editor::expand_excerpts_down);
366 }
367 register_action(editor, window, Editor::go_to_diagnostic);
368 register_action(editor, window, Editor::go_to_prev_diagnostic);
369 register_action(editor, window, Editor::go_to_next_hunk);
370 register_action(editor, window, Editor::go_to_prev_hunk);
371 register_action(editor, window, |editor, action, window, cx| {
372 editor
373 .go_to_definition(action, window, cx)
374 .detach_and_log_err(cx);
375 });
376 register_action(editor, window, |editor, action, window, cx| {
377 editor
378 .go_to_definition_split(action, window, cx)
379 .detach_and_log_err(cx);
380 });
381 register_action(editor, window, |editor, action, window, cx| {
382 editor
383 .go_to_declaration(action, window, cx)
384 .detach_and_log_err(cx);
385 });
386 register_action(editor, window, |editor, action, window, cx| {
387 editor
388 .go_to_declaration_split(action, window, cx)
389 .detach_and_log_err(cx);
390 });
391 register_action(editor, window, |editor, action, window, cx| {
392 editor
393 .go_to_implementation(action, window, cx)
394 .detach_and_log_err(cx);
395 });
396 register_action(editor, window, |editor, action, window, cx| {
397 editor
398 .go_to_implementation_split(action, window, cx)
399 .detach_and_log_err(cx);
400 });
401 register_action(editor, window, |editor, action, window, cx| {
402 editor
403 .go_to_type_definition(action, window, cx)
404 .detach_and_log_err(cx);
405 });
406 register_action(editor, window, |editor, action, window, cx| {
407 editor
408 .go_to_type_definition_split(action, window, cx)
409 .detach_and_log_err(cx);
410 });
411 register_action(editor, window, Editor::open_url);
412 register_action(editor, window, Editor::open_selected_filename);
413 register_action(editor, window, Editor::fold);
414 register_action(editor, window, Editor::fold_at_level);
415 register_action(editor, window, Editor::fold_all);
416 register_action(editor, window, Editor::fold_function_bodies);
417 register_action(editor, window, Editor::fold_recursive);
418 register_action(editor, window, Editor::toggle_fold);
419 register_action(editor, window, Editor::toggle_fold_recursive);
420 register_action(editor, window, Editor::unfold_lines);
421 register_action(editor, window, Editor::unfold_recursive);
422 register_action(editor, window, Editor::unfold_all);
423 register_action(editor, window, Editor::fold_selected_ranges);
424 register_action(editor, window, Editor::set_mark);
425 register_action(editor, window, Editor::swap_selection_ends);
426 register_action(editor, window, Editor::show_completions);
427 register_action(editor, window, Editor::show_word_completions);
428 register_action(editor, window, Editor::toggle_code_actions);
429 register_action(editor, window, Editor::open_excerpts);
430 register_action(editor, window, Editor::open_excerpts_in_split);
431 register_action(editor, window, Editor::open_proposed_changes_editor);
432 register_action(editor, window, Editor::toggle_soft_wrap);
433 register_action(editor, window, Editor::toggle_tab_bar);
434 register_action(editor, window, Editor::toggle_line_numbers);
435 register_action(editor, window, Editor::toggle_relative_line_numbers);
436 register_action(editor, window, Editor::toggle_indent_guides);
437 register_action(editor, window, Editor::toggle_inlay_hints);
438 register_action(editor, window, Editor::toggle_edit_predictions);
439 if editor.read(cx).diagnostics_enabled() {
440 register_action(editor, window, Editor::toggle_diagnostics);
441 }
442 if editor.read(cx).inline_diagnostics_enabled() {
443 register_action(editor, window, Editor::toggle_inline_diagnostics);
444 }
445 if editor.read(cx).supports_minimap(cx) {
446 register_action(editor, window, Editor::toggle_minimap);
447 }
448 register_action(editor, window, hover_popover::hover);
449 register_action(editor, window, Editor::reveal_in_finder);
450 register_action(editor, window, Editor::copy_path);
451 register_action(editor, window, Editor::copy_relative_path);
452 register_action(editor, window, Editor::copy_file_name);
453 register_action(editor, window, Editor::copy_file_name_without_extension);
454 register_action(editor, window, Editor::copy_highlight_json);
455 register_action(editor, window, Editor::copy_permalink_to_line);
456 register_action(editor, window, Editor::open_permalink_to_line);
457 register_action(editor, window, Editor::copy_file_location);
458 register_action(editor, window, Editor::toggle_git_blame);
459 register_action(editor, window, Editor::toggle_git_blame_inline);
460 register_action(editor, window, Editor::open_git_blame_commit);
461 register_action(editor, window, Editor::toggle_selected_diff_hunks);
462 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
463 register_action(editor, window, Editor::stage_and_next);
464 register_action(editor, window, Editor::unstage_and_next);
465 register_action(editor, window, Editor::expand_all_diff_hunks);
466 register_action(editor, window, Editor::go_to_previous_change);
467 register_action(editor, window, Editor::go_to_next_change);
468
469 register_action(editor, window, |editor, action, window, cx| {
470 if let Some(task) = editor.format(action, window, cx) {
471 task.detach_and_notify_err(window, cx);
472 } else {
473 cx.propagate();
474 }
475 });
476 register_action(editor, window, |editor, action, window, cx| {
477 if let Some(task) = editor.format_selections(action, window, cx) {
478 task.detach_and_notify_err(window, cx);
479 } else {
480 cx.propagate();
481 }
482 });
483 register_action(editor, window, |editor, action, window, cx| {
484 if let Some(task) = editor.organize_imports(action, window, cx) {
485 task.detach_and_notify_err(window, cx);
486 } else {
487 cx.propagate();
488 }
489 });
490 register_action(editor, window, Editor::restart_language_server);
491 register_action(editor, window, Editor::stop_language_server);
492 register_action(editor, window, Editor::show_character_palette);
493 register_action(editor, window, |editor, action, window, cx| {
494 if let Some(task) = editor.confirm_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_completion_replace(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.confirm_completion_insert(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.compose_completion(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.confirm_code_action(action, window, cx) {
523 task.detach_and_notify_err(window, cx);
524 } else {
525 cx.propagate();
526 }
527 });
528 register_action(editor, window, |editor, action, window, cx| {
529 if let Some(task) = editor.rename(action, window, cx) {
530 task.detach_and_notify_err(window, cx);
531 } else {
532 cx.propagate();
533 }
534 });
535 register_action(editor, window, |editor, action, window, cx| {
536 if let Some(task) = editor.confirm_rename(action, window, cx) {
537 task.detach_and_notify_err(window, cx);
538 } else {
539 cx.propagate();
540 }
541 });
542 register_action(editor, window, |editor, action, window, cx| {
543 if let Some(task) = editor.find_all_references(action, window, cx) {
544 task.detach_and_log_err(cx);
545 } else {
546 cx.propagate();
547 }
548 });
549 register_action(editor, window, Editor::show_signature_help);
550 register_action(editor, window, Editor::signature_help_prev);
551 register_action(editor, window, Editor::signature_help_next);
552 register_action(editor, window, Editor::next_edit_prediction);
553 register_action(editor, window, Editor::previous_edit_prediction);
554 register_action(editor, window, Editor::show_inline_completion);
555 register_action(editor, window, Editor::context_menu_first);
556 register_action(editor, window, Editor::context_menu_prev);
557 register_action(editor, window, Editor::context_menu_next);
558 register_action(editor, window, Editor::context_menu_last);
559 register_action(editor, window, Editor::display_cursor_names);
560 register_action(editor, window, Editor::unique_lines_case_insensitive);
561 register_action(editor, window, Editor::unique_lines_case_sensitive);
562 register_action(editor, window, Editor::accept_partial_inline_completion);
563 register_action(editor, window, Editor::accept_edit_prediction);
564 register_action(editor, window, Editor::restore_file);
565 register_action(editor, window, Editor::git_restore);
566 register_action(editor, window, Editor::apply_all_diff_hunks);
567 register_action(editor, window, Editor::apply_selected_diff_hunks);
568 register_action(editor, window, Editor::open_active_item_in_terminal);
569 register_action(editor, window, Editor::reload_file);
570 register_action(editor, window, Editor::spawn_nearest_task);
571 register_action(editor, window, Editor::insert_uuid_v4);
572 register_action(editor, window, Editor::insert_uuid_v7);
573 register_action(editor, window, Editor::open_selections_in_multibuffer);
574 register_action(editor, window, Editor::toggle_breakpoint);
575 register_action(editor, window, Editor::edit_log_breakpoint);
576 register_action(editor, window, Editor::enable_breakpoint);
577 register_action(editor, window, Editor::disable_breakpoint);
578 }
579
580 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
581 let position_map = layout.position_map.clone();
582 window.on_key_event({
583 let editor = self.editor.clone();
584 move |event: &ModifiersChangedEvent, phase, window, cx| {
585 if phase != DispatchPhase::Bubble {
586 return;
587 }
588 editor.update(cx, |editor, cx| {
589 let inlay_hint_settings = inlay_hint_settings(
590 editor.selections.newest_anchor().head(),
591 &editor.buffer.read(cx).snapshot(cx),
592 cx,
593 );
594
595 if let Some(inlay_modifiers) = inlay_hint_settings
596 .toggle_on_modifiers_press
597 .as_ref()
598 .filter(|modifiers| modifiers.modified())
599 {
600 editor.refresh_inlay_hints(
601 InlayHintRefreshReason::ModifiersChanged(
602 inlay_modifiers == &event.modifiers,
603 ),
604 cx,
605 );
606 }
607
608 if editor.hover_state.focused(window, cx) {
609 return;
610 }
611
612 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
613 })
614 }
615 });
616 }
617
618 fn mouse_left_down(
619 editor: &mut Editor,
620 event: &MouseDownEvent,
621 hovered_hunk: Option<Range<Anchor>>,
622 position_map: &PositionMap,
623 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
624 window: &mut Window,
625 cx: &mut Context<Editor>,
626 ) {
627 if window.default_prevented() {
628 return;
629 }
630
631 let text_hitbox = &position_map.text_hitbox;
632 let gutter_hitbox = &position_map.gutter_hitbox;
633 let point_for_position = position_map.point_for_position(event.position);
634 let mut click_count = event.click_count;
635 let mut modifiers = event.modifiers;
636
637 if let Some(hovered_hunk) = hovered_hunk {
638 editor.toggle_single_diff_hunk(hovered_hunk, cx);
639 cx.notify();
640 return;
641 } else if gutter_hitbox.is_hovered(window) {
642 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
643 } else if !text_hitbox.is_hovered(window) {
644 return;
645 }
646
647 if editor.drag_and_drop_selection_enabled && click_count == 1 {
648 let newest_anchor = editor.selections.newest_anchor();
649 let snapshot = editor.snapshot(window, cx);
650 let selection = newest_anchor.map(|anchor| anchor.to_display_point(&snapshot));
651 if point_for_position.intersects_selection(&selection) {
652 editor.selection_drag_state = SelectionDragState::ReadyToDrag {
653 selection: newest_anchor.clone(),
654 click_position: event.position,
655 mouse_down_time: Instant::now(),
656 };
657 cx.stop_propagation();
658 return;
659 }
660 }
661
662 let is_singleton = editor.buffer().read(cx).is_singleton();
663
664 if click_count == 2 && !is_singleton {
665 match EditorSettings::get_global(cx).double_click_in_multibuffer {
666 DoubleClickInMultibuffer::Select => {
667 // do nothing special on double click, all selection logic is below
668 }
669 DoubleClickInMultibuffer::Open => {
670 if modifiers.alt {
671 // if double click is made with alt, pretend it's a regular double click without opening and alt,
672 // and run the selection logic.
673 modifiers.alt = false;
674 } else {
675 let scroll_position_row =
676 position_map.scroll_pixel_position.y / position_map.line_height;
677 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
678 + position_map.scroll_pixel_position.y)
679 / position_map.line_height)
680 as u32;
681 let multi_buffer_row = position_map
682 .snapshot
683 .display_point_to_point(
684 DisplayPoint::new(DisplayRow(display_row), 0),
685 Bias::Right,
686 )
687 .row;
688 let line_offset_from_top = display_row - scroll_position_row as u32;
689 // if double click is made without alt, open the corresponding excerp
690 editor.open_excerpts_common(
691 Some(JumpData::MultiBufferRow {
692 row: MultiBufferRow(multi_buffer_row),
693 line_offset_from_top,
694 }),
695 false,
696 window,
697 cx,
698 );
699 return;
700 }
701 }
702 }
703 }
704
705 let position = point_for_position.previous_valid;
706 if let Some(mode) = Editor::columnar_selection_mode(&modifiers, cx) {
707 editor.select(
708 SelectPhase::BeginColumnar {
709 position,
710 reset: match mode {
711 ColumnarMode::FromMouse => true,
712 ColumnarMode::FromSelection => false,
713 },
714 mode: mode,
715 goal_column: point_for_position.exact_unclipped.column(),
716 },
717 window,
718 cx,
719 );
720 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
721 {
722 editor.select(
723 SelectPhase::Extend {
724 position,
725 click_count,
726 },
727 window,
728 cx,
729 );
730 } else {
731 editor.select(
732 SelectPhase::Begin {
733 position,
734 add: Editor::multi_cursor_modifier(true, &modifiers, cx),
735 click_count,
736 },
737 window,
738 cx,
739 );
740 }
741 cx.stop_propagation();
742
743 if !is_singleton {
744 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
745 + position_map.scroll_pixel_position.y)
746 / position_map.line_height) as u32;
747 let multi_buffer_row = position_map
748 .snapshot
749 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
750 .row;
751 if line_numbers
752 .get(&MultiBufferRow(multi_buffer_row))
753 .and_then(|line_number| line_number.hitbox.as_ref())
754 .is_some_and(|hitbox| hitbox.contains(&event.position))
755 {
756 let scroll_position_row =
757 position_map.scroll_pixel_position.y / position_map.line_height;
758 let line_offset_from_top = display_row - scroll_position_row as u32;
759
760 editor.open_excerpts_common(
761 Some(JumpData::MultiBufferRow {
762 row: MultiBufferRow(multi_buffer_row),
763 line_offset_from_top,
764 }),
765 modifiers.alt,
766 window,
767 cx,
768 );
769 cx.stop_propagation();
770 }
771 }
772 }
773
774 fn mouse_right_down(
775 editor: &mut Editor,
776 event: &MouseDownEvent,
777 position_map: &PositionMap,
778 window: &mut Window,
779 cx: &mut Context<Editor>,
780 ) {
781 if position_map.gutter_hitbox.is_hovered(window) {
782 let gutter_right_padding = editor.gutter_dimensions.right_padding;
783 let hitbox = &position_map.gutter_hitbox;
784
785 if event.position.x <= hitbox.bounds.right() - gutter_right_padding {
786 let point_for_position = position_map.point_for_position(event.position);
787 editor.set_breakpoint_context_menu(
788 point_for_position.previous_valid.row(),
789 None,
790 event.position,
791 window,
792 cx,
793 );
794 }
795 return;
796 }
797
798 if !position_map.text_hitbox.is_hovered(window) {
799 return;
800 }
801
802 let point_for_position = position_map.point_for_position(event.position);
803 mouse_context_menu::deploy_context_menu(
804 editor,
805 Some(event.position),
806 point_for_position.previous_valid,
807 window,
808 cx,
809 );
810 cx.stop_propagation();
811 }
812
813 fn mouse_middle_down(
814 editor: &mut Editor,
815 event: &MouseDownEvent,
816 position_map: &PositionMap,
817 window: &mut Window,
818 cx: &mut Context<Editor>,
819 ) {
820 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
821 return;
822 }
823
824 let point_for_position = position_map.point_for_position(event.position);
825 let position = point_for_position.previous_valid;
826
827 editor.select(
828 SelectPhase::BeginColumnar {
829 position,
830 reset: true,
831 mode: ColumnarMode::FromMouse,
832 goal_column: point_for_position.exact_unclipped.column(),
833 },
834 window,
835 cx,
836 );
837 }
838
839 fn mouse_up(
840 editor: &mut Editor,
841 event: &MouseUpEvent,
842 position_map: &PositionMap,
843 window: &mut Window,
844 cx: &mut Context<Editor>,
845 ) {
846 let text_hitbox = &position_map.text_hitbox;
847 let end_selection = editor.has_pending_selection();
848 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
849 let point_for_position = position_map.point_for_position(event.position);
850
851 match editor.selection_drag_state {
852 SelectionDragState::ReadyToDrag {
853 selection: _,
854 ref click_position,
855 mouse_down_time: _,
856 } => {
857 if event.position == *click_position {
858 editor.select(
859 SelectPhase::Begin {
860 position: point_for_position.previous_valid,
861 add: false,
862 click_count: 1, // ready to drag state only occurs on click count 1
863 },
864 window,
865 cx,
866 );
867 editor.selection_drag_state = SelectionDragState::None;
868 cx.stop_propagation();
869 return;
870 } else {
871 debug_panic!("drag state can never be in ready state after drag")
872 }
873 }
874 SelectionDragState::Dragging { ref selection, .. } => {
875 let snapshot = editor.snapshot(window, cx);
876 let selection_display = selection.map(|anchor| anchor.to_display_point(&snapshot));
877 if !point_for_position.intersects_selection(&selection_display)
878 && text_hitbox.is_hovered(window)
879 {
880 let is_cut = !(cfg!(target_os = "macos") && event.modifiers.alt
881 || cfg!(not(target_os = "macos")) && event.modifiers.control);
882 editor.move_selection_on_drop(
883 &selection.clone(),
884 point_for_position.previous_valid,
885 is_cut,
886 window,
887 cx,
888 );
889 }
890 editor.selection_drag_state = SelectionDragState::None;
891 cx.stop_propagation();
892 cx.notify();
893 return;
894 }
895 _ => {}
896 }
897
898 if end_selection {
899 editor.select(SelectPhase::End, window, cx);
900 }
901
902 if end_selection && pending_nonempty_selections {
903 cx.stop_propagation();
904 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
905 && event.button == MouseButton::Middle
906 {
907 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
908 return;
909 }
910
911 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
912 if EditorSettings::get_global(cx).middle_click_paste {
913 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
914 let point_for_position = position_map.point_for_position(event.position);
915 let position = point_for_position.previous_valid;
916
917 editor.select(
918 SelectPhase::Begin {
919 position,
920 add: false,
921 click_count: 1,
922 },
923 window,
924 cx,
925 );
926 editor.insert(&text, window, cx);
927 }
928 cx.stop_propagation()
929 }
930 }
931 }
932
933 fn click(
934 editor: &mut Editor,
935 event: &ClickEvent,
936 position_map: &PositionMap,
937 window: &mut Window,
938 cx: &mut Context<Editor>,
939 ) {
940 let text_hitbox = &position_map.text_hitbox;
941 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
942
943 let hovered_link_modifier = Editor::multi_cursor_modifier(false, &event.modifiers(), cx);
944
945 if !pending_nonempty_selections && hovered_link_modifier && text_hitbox.is_hovered(window) {
946 let point = position_map.point_for_position(event.up.position);
947 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
948
949 cx.stop_propagation();
950 }
951 }
952
953 fn mouse_dragged(
954 editor: &mut Editor,
955 event: &MouseMoveEvent,
956 position_map: &PositionMap,
957 window: &mut Window,
958 cx: &mut Context<Editor>,
959 ) {
960 if !editor.has_pending_selection()
961 && matches!(editor.selection_drag_state, SelectionDragState::None)
962 {
963 return;
964 }
965
966 let point_for_position = position_map.point_for_position(event.position);
967 let text_hitbox = &position_map.text_hitbox;
968
969 let scroll_delta = {
970 let text_bounds = text_hitbox.bounds;
971 let mut scroll_delta = gpui::Point::<f32>::default();
972 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
973 let top = text_bounds.origin.y + vertical_margin;
974 let bottom = text_bounds.bottom_left().y - vertical_margin;
975 if event.position.y < top {
976 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
977 }
978 if event.position.y > bottom {
979 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
980 }
981
982 // We need horizontal width of text
983 let style = editor.style.clone().unwrap_or_default();
984 let font_id = window.text_system().resolve_font(&style.text.font());
985 let font_size = style.text.font_size.to_pixels(window.rem_size());
986 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
987
988 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
989
990 let scroll_space: Pixels = scroll_margin_x * em_width;
991
992 let left = text_bounds.origin.x + scroll_space;
993 let right = text_bounds.top_right().x - scroll_space;
994
995 if event.position.x < left {
996 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
997 }
998 if event.position.x > right {
999 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
1000 }
1001 scroll_delta
1002 };
1003
1004 if !editor.has_pending_selection() {
1005 let drop_anchor = position_map
1006 .snapshot
1007 .display_point_to_anchor(point_for_position.previous_valid, Bias::Left);
1008 match editor.selection_drag_state {
1009 SelectionDragState::Dragging {
1010 ref mut drop_cursor,
1011 ref mut hide_drop_cursor,
1012 ..
1013 } => {
1014 drop_cursor.start = drop_anchor;
1015 drop_cursor.end = drop_anchor;
1016 *hide_drop_cursor = !text_hitbox.is_hovered(window);
1017 editor.apply_scroll_delta(scroll_delta, window, cx);
1018 cx.notify();
1019 }
1020 SelectionDragState::ReadyToDrag {
1021 ref selection,
1022 ref click_position,
1023 ref mouse_down_time,
1024 } => {
1025 if mouse_down_time.elapsed() >= SELECTION_DRAG_DELAY {
1026 let drop_cursor = Selection {
1027 id: post_inc(&mut editor.selections.next_selection_id),
1028 start: drop_anchor,
1029 end: drop_anchor,
1030 reversed: false,
1031 goal: SelectionGoal::None,
1032 };
1033 editor.selection_drag_state = SelectionDragState::Dragging {
1034 selection: selection.clone(),
1035 drop_cursor,
1036 hide_drop_cursor: false,
1037 };
1038 editor.apply_scroll_delta(scroll_delta, window, cx);
1039 cx.notify();
1040 } else {
1041 let click_point = position_map.point_for_position(*click_position);
1042 editor.selection_drag_state = SelectionDragState::None;
1043 editor.select(
1044 SelectPhase::Begin {
1045 position: click_point.previous_valid,
1046 add: false,
1047 click_count: 1,
1048 },
1049 window,
1050 cx,
1051 );
1052 editor.select(
1053 SelectPhase::Update {
1054 position: point_for_position.previous_valid,
1055 goal_column: point_for_position.exact_unclipped.column(),
1056 scroll_delta,
1057 },
1058 window,
1059 cx,
1060 );
1061 }
1062 }
1063 _ => {}
1064 }
1065 } else {
1066 editor.select(
1067 SelectPhase::Update {
1068 position: point_for_position.previous_valid,
1069 goal_column: point_for_position.exact_unclipped.column(),
1070 scroll_delta,
1071 },
1072 window,
1073 cx,
1074 );
1075 }
1076 }
1077
1078 fn mouse_moved(
1079 editor: &mut Editor,
1080 event: &MouseMoveEvent,
1081 position_map: &PositionMap,
1082 window: &mut Window,
1083 cx: &mut Context<Editor>,
1084 ) {
1085 let text_hitbox = &position_map.text_hitbox;
1086 let gutter_hitbox = &position_map.gutter_hitbox;
1087 let modifiers = event.modifiers;
1088 let text_hovered = text_hitbox.is_hovered(window);
1089 let gutter_hovered = gutter_hitbox.is_hovered(window);
1090 editor.set_gutter_hovered(gutter_hovered, cx);
1091 editor.show_mouse_cursor(cx);
1092
1093 let point_for_position = position_map.point_for_position(event.position);
1094 let valid_point = point_for_position.previous_valid;
1095
1096 let hovered_diff_control = position_map
1097 .diff_hunk_control_bounds
1098 .iter()
1099 .find(|(_, bounds)| bounds.contains(&event.position))
1100 .map(|(row, _)| *row);
1101
1102 let hovered_diff_hunk_row = if let Some(control_row) = hovered_diff_control {
1103 Some(control_row)
1104 } else {
1105 if text_hovered {
1106 let current_row = valid_point.row();
1107 position_map.display_hunks.iter().find_map(|(hunk, _)| {
1108 if let DisplayDiffHunk::Unfolded {
1109 display_row_range, ..
1110 } = hunk
1111 {
1112 if display_row_range.contains(¤t_row) {
1113 Some(display_row_range.start)
1114 } else {
1115 None
1116 }
1117 } else {
1118 None
1119 }
1120 })
1121 } else {
1122 None
1123 }
1124 };
1125
1126 if hovered_diff_hunk_row != editor.hovered_diff_hunk_row {
1127 editor.hovered_diff_hunk_row = hovered_diff_hunk_row;
1128 cx.notify();
1129 }
1130
1131 if let Some((bounds, blame_entry)) = &position_map.inline_blame_bounds {
1132 let mouse_over_inline_blame = bounds.contains(&event.position);
1133 let mouse_over_popover = editor
1134 .inline_blame_popover
1135 .as_ref()
1136 .and_then(|state| state.popover_bounds)
1137 .map_or(false, |bounds| bounds.contains(&event.position));
1138
1139 if mouse_over_inline_blame || mouse_over_popover {
1140 editor.show_blame_popover(&blame_entry, event.position, cx);
1141 } else {
1142 editor.hide_blame_popover(cx);
1143 }
1144 } else {
1145 editor.hide_blame_popover(cx);
1146 }
1147
1148 let breakpoint_indicator = if gutter_hovered {
1149 let buffer_anchor = position_map
1150 .snapshot
1151 .display_point_to_anchor(valid_point, Bias::Left);
1152
1153 if let Some((buffer_snapshot, file)) = position_map
1154 .snapshot
1155 .buffer_snapshot
1156 .buffer_for_excerpt(buffer_anchor.excerpt_id)
1157 .and_then(|buffer| buffer.file().map(|file| (buffer, file)))
1158 {
1159 let as_point = text::ToPoint::to_point(&buffer_anchor.text_anchor, buffer_snapshot);
1160
1161 let is_visible = editor
1162 .gutter_breakpoint_indicator
1163 .0
1164 .map_or(false, |indicator| indicator.is_active);
1165
1166 let has_existing_breakpoint =
1167 editor.breakpoint_store.as_ref().map_or(false, |store| {
1168 let Some(project) = &editor.project else {
1169 return false;
1170 };
1171 let Some(abs_path) = project.read(cx).absolute_path(
1172 &ProjectPath {
1173 path: file.path().clone(),
1174 worktree_id: file.worktree_id(cx),
1175 },
1176 cx,
1177 ) else {
1178 return false;
1179 };
1180 store
1181 .read(cx)
1182 .breakpoint_at_row(&abs_path, as_point.row, cx)
1183 .is_some()
1184 });
1185
1186 if !is_visible {
1187 editor.gutter_breakpoint_indicator.1.get_or_insert_with(|| {
1188 cx.spawn(async move |this, cx| {
1189 cx.background_executor()
1190 .timer(Duration::from_millis(200))
1191 .await;
1192
1193 this.update(cx, |this, cx| {
1194 if let Some(indicator) = this.gutter_breakpoint_indicator.0.as_mut()
1195 {
1196 indicator.is_active = true;
1197 cx.notify();
1198 }
1199 })
1200 .ok();
1201 })
1202 });
1203 }
1204
1205 Some(PhantomBreakpointIndicator {
1206 display_row: valid_point.row(),
1207 is_active: is_visible,
1208 collides_with_existing_breakpoint: has_existing_breakpoint,
1209 })
1210 } else {
1211 editor.gutter_breakpoint_indicator.1 = None;
1212 None
1213 }
1214 } else {
1215 editor.gutter_breakpoint_indicator.1 = None;
1216 None
1217 };
1218
1219 if &breakpoint_indicator != &editor.gutter_breakpoint_indicator.0 {
1220 editor.gutter_breakpoint_indicator.0 = breakpoint_indicator;
1221 cx.notify();
1222 }
1223
1224 // Don't trigger hover popover if mouse is hovering over context menu
1225 if text_hovered {
1226 editor.update_hovered_link(
1227 point_for_position,
1228 &position_map.snapshot,
1229 modifiers,
1230 window,
1231 cx,
1232 );
1233
1234 if let Some(point) = point_for_position.as_valid() {
1235 let anchor = position_map
1236 .snapshot
1237 .buffer_snapshot
1238 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
1239 hover_at(editor, Some(anchor), window, cx);
1240 Self::update_visible_cursor(editor, point, position_map, window, cx);
1241 } else {
1242 hover_at(editor, None, window, cx);
1243 }
1244 } else {
1245 editor.hide_hovered_link(cx);
1246 hover_at(editor, None, window, cx);
1247 }
1248 }
1249
1250 fn update_visible_cursor(
1251 editor: &mut Editor,
1252 point: DisplayPoint,
1253 position_map: &PositionMap,
1254 window: &mut Window,
1255 cx: &mut Context<Editor>,
1256 ) {
1257 let snapshot = &position_map.snapshot;
1258 let Some(hub) = editor.collaboration_hub() else {
1259 return;
1260 };
1261 let start = snapshot.display_snapshot.clip_point(
1262 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
1263 Bias::Left,
1264 );
1265 let end = snapshot.display_snapshot.clip_point(
1266 DisplayPoint::new(
1267 point.row(),
1268 (point.column() + 1).min(snapshot.line_len(point.row())),
1269 ),
1270 Bias::Right,
1271 );
1272
1273 let range = snapshot
1274 .buffer_snapshot
1275 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
1276 ..snapshot
1277 .buffer_snapshot
1278 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
1279
1280 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
1281 return;
1282 };
1283 let key = crate::HoveredCursor {
1284 replica_id: selection.replica_id,
1285 selection_id: selection.selection.id,
1286 };
1287 editor.hovered_cursors.insert(
1288 key.clone(),
1289 cx.spawn_in(window, async move |editor, cx| {
1290 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
1291 editor
1292 .update(cx, |editor, cx| {
1293 editor.hovered_cursors.remove(&key);
1294 cx.notify();
1295 })
1296 .ok();
1297 }),
1298 );
1299 cx.notify()
1300 }
1301
1302 fn layout_selections(
1303 &self,
1304 start_anchor: Anchor,
1305 end_anchor: Anchor,
1306 local_selections: &[Selection<Point>],
1307 snapshot: &EditorSnapshot,
1308 start_row: DisplayRow,
1309 end_row: DisplayRow,
1310 window: &mut Window,
1311 cx: &mut App,
1312 ) -> (
1313 Vec<(PlayerColor, Vec<SelectionLayout>)>,
1314 BTreeMap<DisplayRow, LineHighlightSpec>,
1315 Option<DisplayPoint>,
1316 ) {
1317 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1318 let mut active_rows = BTreeMap::new();
1319 let mut newest_selection_head = None;
1320
1321 let Some(editor_with_selections) = self.editor_with_selections(cx) else {
1322 return (selections, active_rows, newest_selection_head);
1323 };
1324
1325 editor_with_selections.update(cx, |editor, cx| {
1326 if editor.show_local_selections {
1327 let mut layouts = Vec::new();
1328 let newest = editor.selections.newest(cx);
1329 for selection in local_selections.iter().cloned() {
1330 let is_empty = selection.start == selection.end;
1331 let is_newest = selection == newest;
1332
1333 let layout = SelectionLayout::new(
1334 selection,
1335 editor.selections.line_mode,
1336 editor.cursor_shape,
1337 &snapshot.display_snapshot,
1338 is_newest,
1339 editor.leader_id.is_none(),
1340 None,
1341 );
1342 if is_newest {
1343 newest_selection_head = Some(layout.head);
1344 }
1345
1346 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1347 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1348 {
1349 let contains_non_empty_selection = active_rows
1350 .entry(DisplayRow(row))
1351 .or_insert_with(LineHighlightSpec::default);
1352 contains_non_empty_selection.selection |= !is_empty;
1353 }
1354 layouts.push(layout);
1355 }
1356
1357 let player = editor.current_user_player_color(cx);
1358 selections.push((player, layouts));
1359
1360 if let SelectionDragState::Dragging {
1361 ref selection,
1362 ref drop_cursor,
1363 ref hide_drop_cursor,
1364 } = editor.selection_drag_state
1365 {
1366 if !hide_drop_cursor
1367 && (drop_cursor
1368 .start
1369 .cmp(&selection.start, &snapshot.buffer_snapshot)
1370 .eq(&Ordering::Less)
1371 || drop_cursor
1372 .end
1373 .cmp(&selection.end, &snapshot.buffer_snapshot)
1374 .eq(&Ordering::Greater))
1375 {
1376 let drag_cursor_layout = SelectionLayout::new(
1377 drop_cursor.clone(),
1378 false,
1379 CursorShape::Bar,
1380 &snapshot.display_snapshot,
1381 false,
1382 false,
1383 None,
1384 );
1385 let absent_color = cx.theme().players().absent();
1386 selections.push((absent_color, vec![drag_cursor_layout]));
1387 }
1388 }
1389 }
1390
1391 if let Some(collaboration_hub) = &editor.collaboration_hub {
1392 // When following someone, render the local selections in their color.
1393 if let Some(leader_id) = editor.leader_id {
1394 match leader_id {
1395 CollaboratorId::PeerId(peer_id) => {
1396 if let Some(collaborator) =
1397 collaboration_hub.collaborators(cx).get(&peer_id)
1398 {
1399 if let Some(participant_index) = collaboration_hub
1400 .user_participant_indices(cx)
1401 .get(&collaborator.user_id)
1402 {
1403 if let Some((local_selection_style, _)) = selections.first_mut()
1404 {
1405 *local_selection_style = cx
1406 .theme()
1407 .players()
1408 .color_for_participant(participant_index.0);
1409 }
1410 }
1411 }
1412 }
1413 CollaboratorId::Agent => {
1414 if let Some((local_selection_style, _)) = selections.first_mut() {
1415 *local_selection_style = cx.theme().players().agent();
1416 }
1417 }
1418 }
1419 }
1420
1421 let mut remote_selections = HashMap::default();
1422 for selection in snapshot.remote_selections_in_range(
1423 &(start_anchor..end_anchor),
1424 collaboration_hub.as_ref(),
1425 cx,
1426 ) {
1427 // Don't re-render the leader's selections, since the local selections
1428 // match theirs.
1429 if Some(selection.collaborator_id) == editor.leader_id {
1430 continue;
1431 }
1432 let key = HoveredCursor {
1433 replica_id: selection.replica_id,
1434 selection_id: selection.selection.id,
1435 };
1436
1437 let is_shown =
1438 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1439
1440 remote_selections
1441 .entry(selection.replica_id)
1442 .or_insert((selection.color, Vec::new()))
1443 .1
1444 .push(SelectionLayout::new(
1445 selection.selection,
1446 selection.line_mode,
1447 selection.cursor_shape,
1448 &snapshot.display_snapshot,
1449 false,
1450 false,
1451 if is_shown { selection.user_name } else { None },
1452 ));
1453 }
1454
1455 selections.extend(remote_selections.into_values());
1456 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1457 let layouts = snapshot
1458 .buffer_snapshot
1459 .selections_in_range(&(start_anchor..end_anchor), true)
1460 .map(move |(_, line_mode, cursor_shape, selection)| {
1461 SelectionLayout::new(
1462 selection,
1463 line_mode,
1464 cursor_shape,
1465 &snapshot.display_snapshot,
1466 false,
1467 false,
1468 None,
1469 )
1470 })
1471 .collect::<Vec<_>>();
1472 let player = editor.current_user_player_color(cx);
1473 selections.push((player, layouts));
1474 }
1475 });
1476 (selections, active_rows, newest_selection_head)
1477 }
1478
1479 fn collect_cursors(
1480 &self,
1481 snapshot: &EditorSnapshot,
1482 cx: &mut App,
1483 ) -> Vec<(DisplayPoint, Hsla)> {
1484 let editor = self.editor.read(cx);
1485 let mut cursors = Vec::new();
1486 let mut skip_local = false;
1487 let mut add_cursor = |anchor: Anchor, color| {
1488 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1489 };
1490 // Remote cursors
1491 if let Some(collaboration_hub) = &editor.collaboration_hub {
1492 for remote_selection in snapshot.remote_selections_in_range(
1493 &(Anchor::min()..Anchor::max()),
1494 collaboration_hub.deref(),
1495 cx,
1496 ) {
1497 add_cursor(
1498 remote_selection.selection.head(),
1499 remote_selection.color.cursor,
1500 );
1501 if Some(remote_selection.collaborator_id) == editor.leader_id {
1502 skip_local = true;
1503 }
1504 }
1505 }
1506 // Local cursors
1507 if !skip_local {
1508 let color = cx.theme().players().local().cursor;
1509 editor.selections.disjoint.iter().for_each(|selection| {
1510 add_cursor(selection.head(), color);
1511 });
1512 if let Some(ref selection) = editor.selections.pending_anchor() {
1513 add_cursor(selection.head(), color);
1514 }
1515 }
1516 cursors
1517 }
1518
1519 fn layout_visible_cursors(
1520 &self,
1521 snapshot: &EditorSnapshot,
1522 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1523 row_block_types: &HashMap<DisplayRow, bool>,
1524 visible_display_row_range: Range<DisplayRow>,
1525 line_layouts: &[LineWithInvisibles],
1526 text_hitbox: &Hitbox,
1527 content_origin: gpui::Point<Pixels>,
1528 scroll_position: gpui::Point<f32>,
1529 scroll_pixel_position: gpui::Point<Pixels>,
1530 line_height: Pixels,
1531 em_width: Pixels,
1532 em_advance: Pixels,
1533 autoscroll_containing_element: bool,
1534 window: &mut Window,
1535 cx: &mut App,
1536 ) -> Vec<CursorLayout> {
1537 let mut autoscroll_bounds = None;
1538 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1539 let mut cursors = Vec::new();
1540
1541 let show_local_cursors = editor.show_local_cursors(window, cx);
1542
1543 for (player_color, selections) in selections {
1544 for selection in selections {
1545 let cursor_position = selection.head;
1546
1547 let in_range = visible_display_row_range.contains(&cursor_position.row());
1548 if (selection.is_local && !show_local_cursors)
1549 || !in_range
1550 || row_block_types.get(&cursor_position.row()) == Some(&true)
1551 {
1552 continue;
1553 }
1554
1555 let cursor_row_layout = &line_layouts
1556 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1557 let cursor_column = cursor_position.column() as usize;
1558
1559 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1560 let mut block_width =
1561 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1562 if block_width == Pixels::ZERO {
1563 block_width = em_advance;
1564 }
1565 let block_text = if let CursorShape::Block = selection.cursor_shape {
1566 snapshot
1567 .grapheme_at(cursor_position)
1568 .or_else(|| {
1569 if snapshot.is_empty() {
1570 snapshot.placeholder_text().and_then(|s| {
1571 s.graphemes(true).next().map(|s| s.to_string().into())
1572 })
1573 } else {
1574 None
1575 }
1576 })
1577 .map(|text| {
1578 let len = text.len();
1579
1580 let font = cursor_row_layout
1581 .font_id_for_index(cursor_column)
1582 .and_then(|cursor_font_id| {
1583 window.text_system().get_font_for_id(cursor_font_id)
1584 })
1585 .unwrap_or(self.style.text.font());
1586
1587 // Invert the text color for the block cursor. Ensure that the text
1588 // color is opaque enough to be visible against the background color.
1589 //
1590 // 0.75 is an arbitrary threshold to determine if the background color is
1591 // opaque enough to use as a text color.
1592 //
1593 // TODO: In the future we should ensure themes have a `text_inverse` color.
1594 let color = if cx.theme().colors().editor_background.a < 0.75 {
1595 match cx.theme().appearance {
1596 Appearance::Dark => Hsla::black(),
1597 Appearance::Light => Hsla::white(),
1598 }
1599 } else {
1600 cx.theme().colors().editor_background
1601 };
1602
1603 window.text_system().shape_line(
1604 text,
1605 cursor_row_layout.font_size,
1606 &[TextRun {
1607 len,
1608 font,
1609 color,
1610 background_color: None,
1611 strikethrough: None,
1612 underline: None,
1613 }],
1614 )
1615 })
1616 } else {
1617 None
1618 };
1619
1620 let x = cursor_character_x - scroll_pixel_position.x;
1621 let y = (cursor_position.row().as_f32()
1622 - scroll_pixel_position.y / line_height)
1623 * line_height;
1624 if selection.is_newest {
1625 editor.pixel_position_of_newest_cursor = Some(point(
1626 text_hitbox.origin.x + x + block_width / 2.,
1627 text_hitbox.origin.y + y + line_height / 2.,
1628 ));
1629
1630 if autoscroll_containing_element {
1631 let top = text_hitbox.origin.y
1632 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1633 * line_height;
1634 let left = text_hitbox.origin.x
1635 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1636 .max(0.)
1637 * em_width;
1638
1639 let bottom = text_hitbox.origin.y
1640 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1641 * line_height;
1642 let right = text_hitbox.origin.x
1643 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1644 * em_width;
1645
1646 autoscroll_bounds =
1647 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1648 }
1649 }
1650
1651 let mut cursor = CursorLayout {
1652 color: player_color.cursor,
1653 block_width,
1654 origin: point(x, y),
1655 line_height,
1656 shape: selection.cursor_shape,
1657 block_text,
1658 cursor_name: None,
1659 };
1660 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1661 string: name,
1662 color: self.style.background,
1663 is_top_row: cursor_position.row().0 == 0,
1664 });
1665 cursor.layout(content_origin, cursor_name, window, cx);
1666 cursors.push(cursor);
1667 }
1668 }
1669
1670 cursors
1671 });
1672
1673 if let Some(bounds) = autoscroll_bounds {
1674 window.request_autoscroll(bounds);
1675 }
1676
1677 cursor_layouts
1678 }
1679
1680 fn layout_scrollbars(
1681 &self,
1682 snapshot: &EditorSnapshot,
1683 scrollbar_layout_information: &ScrollbarLayoutInformation,
1684 content_offset: gpui::Point<Pixels>,
1685 scroll_position: gpui::Point<f32>,
1686 non_visible_cursors: bool,
1687 right_margin: Pixels,
1688 editor_width: Pixels,
1689 window: &mut Window,
1690 cx: &mut App,
1691 ) -> Option<EditorScrollbars> {
1692 let show_scrollbars = self.editor.read(cx).show_scrollbars;
1693 if (!show_scrollbars.horizontal && !show_scrollbars.vertical)
1694 || self.style.scrollbar_width.is_zero()
1695 {
1696 return None;
1697 }
1698
1699 // If a drag took place after we started dragging the scrollbar,
1700 // cancel the scrollbar drag.
1701 if cx.has_active_drag() {
1702 self.editor.update(cx, |editor, cx| {
1703 editor.scroll_manager.reset_scrollbar_state(cx)
1704 });
1705 }
1706
1707 let editor_settings = EditorSettings::get_global(cx);
1708 let scrollbar_settings = editor_settings.scrollbar;
1709 let show_scrollbars = match scrollbar_settings.show {
1710 ShowScrollbar::Auto => {
1711 let editor = self.editor.read(cx);
1712 let is_singleton = editor.is_singleton(cx);
1713 // Git
1714 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1715 ||
1716 // Buffer Search Results
1717 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1718 ||
1719 // Selected Text Occurrences
1720 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1721 ||
1722 // Selected Symbol Occurrences
1723 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1724 ||
1725 // Diagnostics
1726 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1727 ||
1728 // Cursors out of sight
1729 non_visible_cursors
1730 ||
1731 // Scrollmanager
1732 editor.scroll_manager.scrollbars_visible()
1733 }
1734 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1735 ShowScrollbar::Always => true,
1736 ShowScrollbar::Never => return None,
1737 };
1738
1739 // The horizontal scrollbar is usually slightly offset to align nicely with
1740 // indent guides. However, this offset is not needed if indent guides are
1741 // disabled for the current editor.
1742 let content_offset = self
1743 .editor
1744 .read(cx)
1745 .show_indent_guides
1746 .is_none_or(|should_show| should_show)
1747 .then_some(content_offset)
1748 .unwrap_or_default();
1749
1750 Some(EditorScrollbars::from_scrollbar_axes(
1751 ScrollbarAxes {
1752 horizontal: scrollbar_settings.axes.horizontal
1753 && self.editor.read(cx).show_scrollbars.horizontal,
1754 vertical: scrollbar_settings.axes.vertical
1755 && self.editor.read(cx).show_scrollbars.vertical,
1756 },
1757 scrollbar_layout_information,
1758 content_offset,
1759 scroll_position,
1760 self.style.scrollbar_width,
1761 right_margin,
1762 editor_width,
1763 show_scrollbars,
1764 self.editor.read(cx).scroll_manager.active_scrollbar_state(),
1765 window,
1766 ))
1767 }
1768
1769 fn layout_minimap(
1770 &self,
1771 snapshot: &EditorSnapshot,
1772 minimap_width: Pixels,
1773 scroll_position: gpui::Point<f32>,
1774 scrollbar_layout_information: &ScrollbarLayoutInformation,
1775 scrollbar_layout: Option<&EditorScrollbars>,
1776 window: &mut Window,
1777 cx: &mut App,
1778 ) -> Option<MinimapLayout> {
1779 let minimap_editor = self.editor.read(cx).minimap().cloned()?;
1780
1781 let minimap_settings = EditorSettings::get_global(cx).minimap;
1782
1783 if minimap_settings.on_active_editor() {
1784 let active_editor = self.editor.read(cx).workspace().and_then(|ws| {
1785 ws.read(cx)
1786 .active_pane()
1787 .read(cx)
1788 .active_item()
1789 .and_then(|i| i.act_as::<Editor>(cx))
1790 });
1791 if active_editor.is_some_and(|e| e != self.editor) {
1792 return None;
1793 }
1794 }
1795
1796 if !snapshot.mode.is_full()
1797 || minimap_width.is_zero()
1798 || matches!(
1799 minimap_settings.show,
1800 ShowMinimap::Auto if scrollbar_layout.is_none_or(|layout| !layout.visible)
1801 )
1802 {
1803 return None;
1804 }
1805
1806 const MINIMAP_AXIS: ScrollbarAxis = ScrollbarAxis::Vertical;
1807
1808 let ScrollbarLayoutInformation {
1809 editor_bounds,
1810 scroll_range,
1811 glyph_grid_cell,
1812 } = scrollbar_layout_information;
1813
1814 let line_height = glyph_grid_cell.height;
1815 let scroll_position = scroll_position.along(MINIMAP_AXIS);
1816
1817 let top_right_anchor = scrollbar_layout
1818 .and_then(|layout| layout.vertical.as_ref())
1819 .map(|vertical_scrollbar| vertical_scrollbar.hitbox.origin)
1820 .unwrap_or_else(|| editor_bounds.top_right());
1821
1822 let thumb_state = self
1823 .editor
1824 .read_with(cx, |editor, _| editor.scroll_manager.minimap_thumb_state());
1825
1826 let show_thumb = match minimap_settings.thumb {
1827 MinimapThumb::Always => true,
1828 MinimapThumb::Hover => thumb_state.is_some(),
1829 };
1830
1831 let minimap_bounds = Bounds::from_corner_and_size(
1832 Corner::TopRight,
1833 top_right_anchor,
1834 size(minimap_width, editor_bounds.size.height),
1835 );
1836 let minimap_line_height = self.get_minimap_line_height(
1837 minimap_editor
1838 .read(cx)
1839 .text_style_refinement
1840 .as_ref()
1841 .and_then(|refinement| refinement.font_size)
1842 .unwrap_or(MINIMAP_FONT_SIZE),
1843 window,
1844 cx,
1845 );
1846 let minimap_height = minimap_bounds.size.height;
1847
1848 let visible_editor_lines = editor_bounds.size.height / line_height;
1849 let total_editor_lines = scroll_range.height / line_height;
1850 let minimap_lines = minimap_height / minimap_line_height;
1851
1852 let minimap_scroll_top = MinimapLayout::calculate_minimap_top_offset(
1853 total_editor_lines,
1854 visible_editor_lines,
1855 minimap_lines,
1856 scroll_position,
1857 );
1858
1859 let layout = ScrollbarLayout::for_minimap(
1860 window.insert_hitbox(minimap_bounds, HitboxBehavior::Normal),
1861 visible_editor_lines,
1862 total_editor_lines,
1863 minimap_line_height,
1864 scroll_position,
1865 minimap_scroll_top,
1866 show_thumb,
1867 )
1868 .with_thumb_state(thumb_state);
1869
1870 minimap_editor.update(cx, |editor, cx| {
1871 editor.set_scroll_position(point(0., minimap_scroll_top), window, cx)
1872 });
1873
1874 // Required for the drop shadow to be visible
1875 const PADDING_OFFSET: Pixels = px(4.);
1876
1877 let mut minimap = div()
1878 .size_full()
1879 .shadow_xs()
1880 .px(PADDING_OFFSET)
1881 .child(minimap_editor)
1882 .into_any_element();
1883
1884 let extended_bounds = minimap_bounds.extend(Edges {
1885 right: PADDING_OFFSET,
1886 left: PADDING_OFFSET,
1887 ..Default::default()
1888 });
1889 minimap.layout_as_root(extended_bounds.size.into(), window, cx);
1890 window.with_absolute_element_offset(extended_bounds.origin, |window| {
1891 minimap.prepaint(window, cx)
1892 });
1893
1894 Some(MinimapLayout {
1895 minimap,
1896 thumb_layout: layout,
1897 thumb_border_style: minimap_settings.thumb_border,
1898 minimap_line_height,
1899 minimap_scroll_top,
1900 max_scroll_top: total_editor_lines,
1901 })
1902 }
1903
1904 fn get_minimap_line_height(
1905 &self,
1906 font_size: AbsoluteLength,
1907 window: &mut Window,
1908 cx: &mut App,
1909 ) -> Pixels {
1910 let rem_size = self.rem_size(cx).unwrap_or(window.rem_size());
1911 let mut text_style = self.style.text.clone();
1912 text_style.font_size = font_size;
1913 text_style.line_height_in_pixels(rem_size)
1914 }
1915
1916 fn get_minimap_width(
1917 &self,
1918 minimap_settings: &Minimap,
1919 scrollbars_shown: bool,
1920 text_width: Pixels,
1921 em_width: Pixels,
1922 font_size: Pixels,
1923 rem_size: Pixels,
1924 cx: &App,
1925 ) -> Option<Pixels> {
1926 if minimap_settings.show == ShowMinimap::Auto && !scrollbars_shown {
1927 return None;
1928 }
1929
1930 let minimap_font_size = self.editor.read_with(cx, |editor, cx| {
1931 editor.minimap().map(|minimap_editor| {
1932 minimap_editor
1933 .read(cx)
1934 .text_style_refinement
1935 .as_ref()
1936 .and_then(|refinement| refinement.font_size)
1937 .unwrap_or(MINIMAP_FONT_SIZE)
1938 })
1939 })?;
1940
1941 let minimap_em_width = em_width * (minimap_font_size.to_pixels(rem_size) / font_size);
1942
1943 let minimap_width = (text_width * MinimapLayout::MINIMAP_WIDTH_PCT)
1944 .min(minimap_em_width * minimap_settings.max_width_columns.get() as f32);
1945
1946 (minimap_width >= minimap_em_width * MinimapLayout::MINIMAP_MIN_WIDTH_COLUMNS)
1947 .then_some(minimap_width)
1948 }
1949
1950 fn prepaint_crease_toggles(
1951 &self,
1952 crease_toggles: &mut [Option<AnyElement>],
1953 line_height: Pixels,
1954 gutter_dimensions: &GutterDimensions,
1955 gutter_settings: crate::editor_settings::Gutter,
1956 scroll_pixel_position: gpui::Point<Pixels>,
1957 gutter_hitbox: &Hitbox,
1958 window: &mut Window,
1959 cx: &mut App,
1960 ) {
1961 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1962 if let Some(crease_toggle) = crease_toggle {
1963 debug_assert!(gutter_settings.folds);
1964 let available_space = size(
1965 AvailableSpace::MinContent,
1966 AvailableSpace::Definite(line_height * 0.55),
1967 );
1968 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1969
1970 let position = point(
1971 gutter_dimensions.width - gutter_dimensions.right_padding,
1972 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1973 );
1974 let centering_offset = point(
1975 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1976 (line_height - crease_toggle_size.height) / 2.,
1977 );
1978 let origin = gutter_hitbox.origin + position + centering_offset;
1979 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1980 }
1981 }
1982 }
1983
1984 fn prepaint_expand_toggles(
1985 &self,
1986 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
1987 window: &mut Window,
1988 cx: &mut App,
1989 ) {
1990 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
1991 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
1992 expand_toggle.layout_as_root(available_space, window, cx);
1993 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
1994 }
1995 }
1996
1997 fn prepaint_crease_trailers(
1998 &self,
1999 trailers: Vec<Option<AnyElement>>,
2000 lines: &[LineWithInvisibles],
2001 line_height: Pixels,
2002 content_origin: gpui::Point<Pixels>,
2003 scroll_pixel_position: gpui::Point<Pixels>,
2004 em_width: Pixels,
2005 window: &mut Window,
2006 cx: &mut App,
2007 ) -> Vec<Option<CreaseTrailerLayout>> {
2008 trailers
2009 .into_iter()
2010 .enumerate()
2011 .map(|(ix, element)| {
2012 let mut element = element?;
2013 let available_space = size(
2014 AvailableSpace::MinContent,
2015 AvailableSpace::Definite(line_height),
2016 );
2017 let size = element.layout_as_root(available_space, window, cx);
2018
2019 let line = &lines[ix];
2020 let padding = if line.width == Pixels::ZERO {
2021 Pixels::ZERO
2022 } else {
2023 4. * em_width
2024 };
2025 let position = point(
2026 scroll_pixel_position.x + line.width + padding,
2027 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
2028 );
2029 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
2030 let origin = content_origin + position + centering_offset;
2031 element.prepaint_as_root(origin, available_space, window, cx);
2032 Some(CreaseTrailerLayout {
2033 element,
2034 bounds: Bounds::new(origin, size),
2035 })
2036 })
2037 .collect()
2038 }
2039
2040 // Folds contained in a hunk are ignored apart from shrinking visual size
2041 // If a fold contains any hunks then that fold line is marked as modified
2042 fn layout_gutter_diff_hunks(
2043 &self,
2044 line_height: Pixels,
2045 gutter_hitbox: &Hitbox,
2046 display_rows: Range<DisplayRow>,
2047 snapshot: &EditorSnapshot,
2048 window: &mut Window,
2049 cx: &mut App,
2050 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
2051 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
2052 let mut display_hunks = snapshot
2053 .display_diff_hunks_for_rows(display_rows, folded_buffers)
2054 .map(|hunk| (hunk, None))
2055 .collect::<Vec<_>>();
2056 let git_gutter_setting = ProjectSettings::get_global(cx)
2057 .git
2058 .git_gutter
2059 .unwrap_or_default();
2060 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
2061 for (hunk, hitbox) in &mut display_hunks {
2062 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
2063 let hunk_bounds =
2064 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
2065 *hitbox = Some(window.insert_hitbox(hunk_bounds, HitboxBehavior::BlockMouse));
2066 }
2067 }
2068 }
2069
2070 display_hunks
2071 }
2072
2073 fn layout_inline_diagnostics(
2074 &self,
2075 line_layouts: &[LineWithInvisibles],
2076 crease_trailers: &[Option<CreaseTrailerLayout>],
2077 row_block_types: &HashMap<DisplayRow, bool>,
2078 content_origin: gpui::Point<Pixels>,
2079 scroll_pixel_position: gpui::Point<Pixels>,
2080 inline_completion_popover_origin: Option<gpui::Point<Pixels>>,
2081 start_row: DisplayRow,
2082 end_row: DisplayRow,
2083 line_height: Pixels,
2084 em_width: Pixels,
2085 style: &EditorStyle,
2086 window: &mut Window,
2087 cx: &mut App,
2088 ) -> HashMap<DisplayRow, AnyElement> {
2089 if self.editor.read(cx).mode().is_minimap() {
2090 return HashMap::default();
2091 }
2092
2093 let max_severity = match ProjectSettings::get_global(cx)
2094 .diagnostics
2095 .inline
2096 .max_severity
2097 .unwrap_or_else(|| self.editor.read(cx).diagnostics_max_severity)
2098 .into_lsp()
2099 {
2100 Some(max_severity) => max_severity,
2101 None => return HashMap::default(),
2102 };
2103
2104 let active_diagnostics_group =
2105 if let ActiveDiagnostic::Group(group) = &self.editor.read(cx).active_diagnostics {
2106 Some(group.group_id)
2107 } else {
2108 None
2109 };
2110
2111 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
2112 let snapshot = editor.snapshot(window, cx);
2113 editor
2114 .inline_diagnostics
2115 .iter()
2116 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
2117 .filter(|(_, diagnostic)| match active_diagnostics_group {
2118 Some(active_diagnostics_group) => {
2119 // Active diagnostics are all shown in the editor already, no need to display them inline
2120 diagnostic.group_id != active_diagnostics_group
2121 }
2122 None => true,
2123 })
2124 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
2125 .skip_while(|(point, _)| point.row() < start_row)
2126 .take_while(|(point, _)| point.row() < end_row)
2127 .filter(|(point, _)| !row_block_types.contains_key(&point.row()))
2128 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
2129 acc.entry(point.row())
2130 .or_insert_with(Vec::new)
2131 .push(diagnostic);
2132 acc
2133 })
2134 });
2135
2136 if diagnostics_by_rows.is_empty() {
2137 return HashMap::default();
2138 }
2139
2140 let severity_to_color = |sev: &lsp::DiagnosticSeverity| match sev {
2141 &lsp::DiagnosticSeverity::ERROR => Color::Error,
2142 &lsp::DiagnosticSeverity::WARNING => Color::Warning,
2143 &lsp::DiagnosticSeverity::INFORMATION => Color::Info,
2144 &lsp::DiagnosticSeverity::HINT => Color::Hint,
2145 _ => Color::Error,
2146 };
2147
2148 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
2149 let min_x = ProjectSettings::get_global(cx)
2150 .diagnostics
2151 .inline
2152 .min_column as f32
2153 * em_width;
2154
2155 let mut elements = HashMap::default();
2156 for (row, mut diagnostics) in diagnostics_by_rows {
2157 diagnostics.sort_by_key(|diagnostic| {
2158 (
2159 diagnostic.severity,
2160 std::cmp::Reverse(diagnostic.is_primary),
2161 diagnostic.start.row,
2162 diagnostic.start.column,
2163 )
2164 });
2165
2166 let Some(diagnostic_to_render) = diagnostics
2167 .iter()
2168 .find(|diagnostic| diagnostic.is_primary)
2169 .or_else(|| diagnostics.first())
2170 else {
2171 continue;
2172 };
2173
2174 let pos_y = content_origin.y
2175 + line_height * (row.0 as f32 - scroll_pixel_position.y / line_height);
2176
2177 let window_ix = row.0.saturating_sub(start_row.0) as usize;
2178 let pos_x = {
2179 let crease_trailer_layout = &crease_trailers[window_ix];
2180 let line_layout = &line_layouts[window_ix];
2181
2182 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
2183 crease_trailer.bounds.right()
2184 } else {
2185 content_origin.x - scroll_pixel_position.x + line_layout.width
2186 };
2187
2188 let padded_line = line_end + padding;
2189 let min_start = content_origin.x - scroll_pixel_position.x + min_x;
2190
2191 cmp::max(padded_line, min_start)
2192 };
2193
2194 let behind_inline_completion_popover = inline_completion_popover_origin
2195 .as_ref()
2196 .map_or(false, |inline_completion_popover_origin| {
2197 (pos_y..pos_y + line_height).contains(&inline_completion_popover_origin.y)
2198 });
2199 let opacity = if behind_inline_completion_popover {
2200 0.5
2201 } else {
2202 1.0
2203 };
2204
2205 let mut element = h_flex()
2206 .id(("diagnostic", row.0))
2207 .h(line_height)
2208 .w_full()
2209 .px_1()
2210 .rounded_xs()
2211 .opacity(opacity)
2212 .bg(severity_to_color(&diagnostic_to_render.severity)
2213 .color(cx)
2214 .opacity(0.05))
2215 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
2216 .text_sm()
2217 .font_family(style.text.font().family)
2218 .child(diagnostic_to_render.message.clone())
2219 .into_any();
2220
2221 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
2222
2223 elements.insert(row, element);
2224 }
2225
2226 elements
2227 }
2228
2229 fn layout_inline_code_actions(
2230 &self,
2231 display_point: DisplayPoint,
2232 content_origin: gpui::Point<Pixels>,
2233 scroll_pixel_position: gpui::Point<Pixels>,
2234 line_height: Pixels,
2235 snapshot: &EditorSnapshot,
2236 window: &mut Window,
2237 cx: &mut App,
2238 ) -> Option<AnyElement> {
2239 if !snapshot
2240 .show_code_actions
2241 .unwrap_or(EditorSettings::get_global(cx).inline_code_actions)
2242 {
2243 return None;
2244 }
2245
2246 let icon_size = ui::IconSize::XSmall;
2247 let mut button = self.editor.update(cx, |editor, cx| {
2248 editor.available_code_actions.as_ref()?;
2249 let active = editor
2250 .context_menu
2251 .borrow()
2252 .as_ref()
2253 .and_then(|menu| {
2254 if let crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2255 deployed_from,
2256 ..
2257 }) = menu
2258 {
2259 deployed_from.as_ref()
2260 } else {
2261 None
2262 }
2263 })
2264 .map_or(false, |source| {
2265 matches!(source, CodeActionSource::Indicator(..))
2266 });
2267 Some(editor.render_inline_code_actions(icon_size, display_point.row(), active, cx))
2268 })?;
2269
2270 let buffer_point = display_point.to_point(&snapshot.display_snapshot);
2271
2272 // do not show code action for folded line
2273 if snapshot.is_line_folded(MultiBufferRow(buffer_point.row)) {
2274 return None;
2275 }
2276
2277 // do not show code action for blank line with cursor
2278 let line_indent = snapshot
2279 .display_snapshot
2280 .buffer_snapshot
2281 .line_indent_for_row(MultiBufferRow(buffer_point.row));
2282 if line_indent.is_line_blank() {
2283 return None;
2284 }
2285
2286 const INLINE_SLOT_CHAR_LIMIT: u32 = 4;
2287 const MAX_ALTERNATE_DISTANCE: u32 = 8;
2288
2289 let excerpt_id = snapshot
2290 .display_snapshot
2291 .buffer_snapshot
2292 .excerpt_containing(buffer_point..buffer_point)
2293 .map(|excerpt| excerpt.id());
2294
2295 let is_valid_row = |row_candidate: u32| -> bool {
2296 // move to other row if folded row
2297 if snapshot.is_line_folded(MultiBufferRow(row_candidate)) {
2298 return false;
2299 }
2300 if buffer_point.row == row_candidate {
2301 // move to other row if cursor is in slot
2302 if buffer_point.column < INLINE_SLOT_CHAR_LIMIT {
2303 return false;
2304 }
2305 } else {
2306 let candidate_point = MultiBufferPoint {
2307 row: row_candidate,
2308 column: 0,
2309 };
2310 let candidate_excerpt_id = snapshot
2311 .display_snapshot
2312 .buffer_snapshot
2313 .excerpt_containing(candidate_point..candidate_point)
2314 .map(|excerpt| excerpt.id());
2315 // move to other row if different excerpt
2316 if excerpt_id != candidate_excerpt_id {
2317 return false;
2318 }
2319 }
2320 let line_indent = snapshot
2321 .display_snapshot
2322 .buffer_snapshot
2323 .line_indent_for_row(MultiBufferRow(row_candidate));
2324 // use this row if it's blank
2325 if line_indent.is_line_blank() {
2326 true
2327 } else {
2328 // use this row if code starts after slot
2329 let indent_size = snapshot
2330 .display_snapshot
2331 .buffer_snapshot
2332 .indent_size_for_line(MultiBufferRow(row_candidate));
2333 indent_size.len >= INLINE_SLOT_CHAR_LIMIT
2334 }
2335 };
2336
2337 let new_buffer_row = if is_valid_row(buffer_point.row) {
2338 Some(buffer_point.row)
2339 } else {
2340 let max_row = snapshot.display_snapshot.buffer_snapshot.max_point().row;
2341 (1..=MAX_ALTERNATE_DISTANCE).find_map(|offset| {
2342 let row_above = buffer_point.row.saturating_sub(offset);
2343 let row_below = buffer_point.row + offset;
2344 if row_above != buffer_point.row && is_valid_row(row_above) {
2345 Some(row_above)
2346 } else if row_below <= max_row && is_valid_row(row_below) {
2347 Some(row_below)
2348 } else {
2349 None
2350 }
2351 })
2352 }?;
2353
2354 let new_display_row = snapshot
2355 .display_snapshot
2356 .point_to_display_point(
2357 Point {
2358 row: new_buffer_row,
2359 column: buffer_point.column,
2360 },
2361 text::Bias::Left,
2362 )
2363 .row();
2364
2365 let start_y = content_origin.y
2366 + ((new_display_row.as_f32() - (scroll_pixel_position.y / line_height)) * line_height)
2367 + (line_height / 2.0)
2368 - (icon_size.square(window, cx) / 2.);
2369 let start_x = content_origin.x - scroll_pixel_position.x + (window.rem_size() * 0.1);
2370
2371 let absolute_offset = gpui::point(start_x, start_y);
2372 button.layout_as_root(gpui::AvailableSpace::min_size(), window, cx);
2373 button.prepaint_as_root(
2374 absolute_offset,
2375 gpui::AvailableSpace::min_size(),
2376 window,
2377 cx,
2378 );
2379 Some(button)
2380 }
2381
2382 fn layout_inline_blame(
2383 &self,
2384 display_row: DisplayRow,
2385 row_info: &RowInfo,
2386 line_layout: &LineWithInvisibles,
2387 crease_trailer: Option<&CreaseTrailerLayout>,
2388 em_width: Pixels,
2389 content_origin: gpui::Point<Pixels>,
2390 scroll_pixel_position: gpui::Point<Pixels>,
2391 line_height: Pixels,
2392 text_hitbox: &Hitbox,
2393 window: &mut Window,
2394 cx: &mut App,
2395 ) -> Option<InlineBlameLayout> {
2396 if !self
2397 .editor
2398 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
2399 {
2400 return None;
2401 }
2402
2403 let editor = self.editor.read(cx);
2404 let blame = editor.blame.clone()?;
2405 let padding = {
2406 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
2407 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
2408
2409 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
2410
2411 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
2412 match &inline_completion.completion {
2413 InlineCompletion::Edit {
2414 display_mode: EditDisplayMode::TabAccept,
2415 ..
2416 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
2417 _ => {}
2418 }
2419 }
2420
2421 padding * em_width
2422 };
2423
2424 let entry = blame
2425 .update(cx, |blame, cx| {
2426 blame.blame_for_rows(&[*row_info], cx).next()
2427 })
2428 .flatten()?;
2429
2430 let mut element = render_inline_blame_entry(entry.clone(), &self.style, cx)?;
2431
2432 let start_y = content_origin.y
2433 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
2434
2435 let start_x = {
2436 let line_end = if let Some(crease_trailer) = crease_trailer {
2437 crease_trailer.bounds.right()
2438 } else {
2439 content_origin.x - scroll_pixel_position.x + line_layout.width
2440 };
2441
2442 let padded_line_end = line_end + padding;
2443
2444 let min_column_in_pixels = ProjectSettings::get_global(cx)
2445 .git
2446 .inline_blame
2447 .and_then(|settings| settings.min_column)
2448 .map(|col| self.column_pixels(col as usize, window))
2449 .unwrap_or(px(0.));
2450 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
2451
2452 cmp::max(padded_line_end, min_start)
2453 };
2454
2455 let absolute_offset = point(start_x, start_y);
2456 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2457 let bounds = Bounds::new(absolute_offset, size);
2458
2459 self.layout_blame_entry_popover(entry.clone(), blame, line_height, text_hitbox, window, cx);
2460
2461 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
2462
2463 Some(InlineBlameLayout {
2464 element,
2465 bounds,
2466 entry,
2467 })
2468 }
2469
2470 fn layout_blame_entry_popover(
2471 &self,
2472 blame_entry: BlameEntry,
2473 blame: Entity<GitBlame>,
2474 line_height: Pixels,
2475 text_hitbox: &Hitbox,
2476 window: &mut Window,
2477 cx: &mut App,
2478 ) {
2479 let Some((popover_state, target_point)) = self.editor.read_with(cx, |editor, _| {
2480 editor
2481 .inline_blame_popover
2482 .as_ref()
2483 .map(|state| (state.popover_state.clone(), state.position))
2484 }) else {
2485 return;
2486 };
2487
2488 let workspace = self
2489 .editor
2490 .read_with(cx, |editor, _| editor.workspace().map(|w| w.downgrade()));
2491
2492 let maybe_element = workspace.and_then(|workspace| {
2493 render_blame_entry_popover(
2494 blame_entry,
2495 popover_state.scroll_handle,
2496 popover_state.commit_message,
2497 popover_state.markdown,
2498 workspace,
2499 &blame,
2500 window,
2501 cx,
2502 )
2503 });
2504
2505 if let Some(mut element) = maybe_element {
2506 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2507 let overall_height = size.height + HOVER_POPOVER_GAP;
2508 let popover_origin = if target_point.y > overall_height {
2509 point(target_point.x, target_point.y - size.height)
2510 } else {
2511 point(
2512 target_point.x,
2513 target_point.y + line_height + HOVER_POPOVER_GAP,
2514 )
2515 };
2516
2517 let horizontal_offset = (text_hitbox.top_right().x
2518 - POPOVER_RIGHT_OFFSET
2519 - (popover_origin.x + size.width))
2520 .min(Pixels::ZERO);
2521
2522 let origin = point(popover_origin.x + horizontal_offset, popover_origin.y);
2523 let popover_bounds = Bounds::new(origin, size);
2524
2525 self.editor.update(cx, |editor, _| {
2526 if let Some(state) = &mut editor.inline_blame_popover {
2527 state.popover_bounds = Some(popover_bounds);
2528 }
2529 });
2530
2531 window.defer_draw(element, origin, 2);
2532 }
2533 }
2534
2535 fn layout_blame_entries(
2536 &self,
2537 buffer_rows: &[RowInfo],
2538 em_width: Pixels,
2539 scroll_position: gpui::Point<f32>,
2540 line_height: Pixels,
2541 gutter_hitbox: &Hitbox,
2542 max_width: Option<Pixels>,
2543 window: &mut Window,
2544 cx: &mut App,
2545 ) -> Option<Vec<AnyElement>> {
2546 if !self
2547 .editor
2548 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
2549 {
2550 return None;
2551 }
2552
2553 let blame = self.editor.read(cx).blame.clone()?;
2554 let workspace = self.editor.read(cx).workspace()?;
2555 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
2556 blame.blame_for_rows(buffer_rows, cx).collect()
2557 });
2558
2559 let width = if let Some(max_width) = max_width {
2560 AvailableSpace::Definite(max_width)
2561 } else {
2562 AvailableSpace::MaxContent
2563 };
2564 let scroll_top = scroll_position.y * line_height;
2565 let start_x = em_width;
2566
2567 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
2568 let blame_renderer = cx.global::<GlobalBlameRenderer>().0.clone();
2569
2570 let shaped_lines = blamed_rows
2571 .into_iter()
2572 .enumerate()
2573 .flat_map(|(ix, blame_entry)| {
2574 let mut element = render_blame_entry(
2575 ix,
2576 &blame,
2577 blame_entry?,
2578 &self.style,
2579 &mut last_used_color,
2580 self.editor.clone(),
2581 workspace.clone(),
2582 blame_renderer.clone(),
2583 cx,
2584 )?;
2585
2586 let start_y = ix as f32 * line_height - (scroll_top % line_height);
2587 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
2588
2589 element.prepaint_as_root(
2590 absolute_offset,
2591 size(width, AvailableSpace::MinContent),
2592 window,
2593 cx,
2594 );
2595
2596 Some(element)
2597 })
2598 .collect();
2599
2600 Some(shaped_lines)
2601 }
2602
2603 fn layout_indent_guides(
2604 &self,
2605 content_origin: gpui::Point<Pixels>,
2606 text_origin: gpui::Point<Pixels>,
2607 visible_buffer_range: Range<MultiBufferRow>,
2608 scroll_pixel_position: gpui::Point<Pixels>,
2609 line_height: Pixels,
2610 snapshot: &DisplaySnapshot,
2611 window: &mut Window,
2612 cx: &mut App,
2613 ) -> Option<Vec<IndentGuideLayout>> {
2614 if self.editor.read(cx).mode().is_minimap() {
2615 return None;
2616 }
2617 let indent_guides = self.editor.update(cx, |editor, cx| {
2618 editor.indent_guides(visible_buffer_range, snapshot, cx)
2619 })?;
2620
2621 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
2622 editor
2623 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
2624 .unwrap_or_default()
2625 });
2626
2627 Some(
2628 indent_guides
2629 .into_iter()
2630 .enumerate()
2631 .filter_map(|(i, indent_guide)| {
2632 let single_indent_width =
2633 self.column_pixels(indent_guide.tab_size as usize, window);
2634 let total_width = single_indent_width * indent_guide.depth as f32;
2635 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
2636 if start_x >= text_origin.x {
2637 let (offset_y, length) = Self::calculate_indent_guide_bounds(
2638 indent_guide.start_row..indent_guide.end_row,
2639 line_height,
2640 snapshot,
2641 );
2642
2643 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
2644
2645 Some(IndentGuideLayout {
2646 origin: point(start_x, start_y),
2647 length,
2648 single_indent_width,
2649 depth: indent_guide.depth,
2650 active: active_indent_guide_indices.contains(&i),
2651 settings: indent_guide.settings,
2652 })
2653 } else {
2654 None
2655 }
2656 })
2657 .collect(),
2658 )
2659 }
2660
2661 fn layout_wrap_guides(
2662 &self,
2663 em_advance: Pixels,
2664 scroll_position: gpui::Point<f32>,
2665 content_origin: gpui::Point<Pixels>,
2666 scrollbar_layout: Option<&EditorScrollbars>,
2667 vertical_scrollbar_width: Pixels,
2668 hitbox: &Hitbox,
2669 window: &Window,
2670 cx: &App,
2671 ) -> SmallVec<[(Pixels, bool); 2]> {
2672 let scroll_left = scroll_position.x * em_advance;
2673 let content_origin = content_origin.x;
2674 let horizontal_offset = content_origin - scroll_left;
2675 let vertical_scrollbar_width = scrollbar_layout
2676 .and_then(|layout| layout.visible.then_some(vertical_scrollbar_width))
2677 .unwrap_or_default();
2678
2679 self.editor
2680 .read(cx)
2681 .wrap_guides(cx)
2682 .into_iter()
2683 .flat_map(|(guide, active)| {
2684 let wrap_position = self.column_pixels(guide, window);
2685 let wrap_guide_x = wrap_position + horizontal_offset;
2686 let display_wrap_guide = wrap_guide_x >= content_origin
2687 && wrap_guide_x <= hitbox.bounds.right() - vertical_scrollbar_width;
2688
2689 display_wrap_guide.then_some((wrap_guide_x, active))
2690 })
2691 .collect()
2692 }
2693
2694 fn calculate_indent_guide_bounds(
2695 row_range: Range<MultiBufferRow>,
2696 line_height: Pixels,
2697 snapshot: &DisplaySnapshot,
2698 ) -> (gpui::Pixels, gpui::Pixels) {
2699 let start_point = Point::new(row_range.start.0, 0);
2700 let end_point = Point::new(row_range.end.0, 0);
2701
2702 let row_range = start_point.to_display_point(snapshot).row()
2703 ..end_point.to_display_point(snapshot).row();
2704
2705 let mut prev_line = start_point;
2706 prev_line.row = prev_line.row.saturating_sub(1);
2707 let prev_line = prev_line.to_display_point(snapshot).row();
2708
2709 let mut cons_line = end_point;
2710 cons_line.row += 1;
2711 let cons_line = cons_line.to_display_point(snapshot).row();
2712
2713 let mut offset_y = row_range.start.0 as f32 * line_height;
2714 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
2715
2716 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
2717 if row_range.end == cons_line {
2718 length += line_height;
2719 }
2720
2721 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
2722 // we want to extend the indent guide to the start of the block.
2723 let mut block_height = 0;
2724 let mut block_offset = 0;
2725 let mut found_excerpt_header = false;
2726 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
2727 if matches!(block, Block::ExcerptBoundary { .. }) {
2728 found_excerpt_header = true;
2729 break;
2730 }
2731 block_offset += block.height();
2732 block_height += block.height();
2733 }
2734 if !found_excerpt_header {
2735 offset_y -= block_offset as f32 * line_height;
2736 length += block_height as f32 * line_height;
2737 }
2738
2739 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
2740 // we want to ensure that the indent guide stops before the excerpt header.
2741 let mut block_height = 0;
2742 let mut found_excerpt_header = false;
2743 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
2744 if matches!(block, Block::ExcerptBoundary { .. }) {
2745 found_excerpt_header = true;
2746 }
2747 block_height += block.height();
2748 }
2749 if found_excerpt_header {
2750 length -= block_height as f32 * line_height;
2751 }
2752
2753 (offset_y, length)
2754 }
2755
2756 fn layout_breakpoints(
2757 &self,
2758 line_height: Pixels,
2759 range: Range<DisplayRow>,
2760 scroll_pixel_position: gpui::Point<Pixels>,
2761 gutter_dimensions: &GutterDimensions,
2762 gutter_hitbox: &Hitbox,
2763 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2764 snapshot: &EditorSnapshot,
2765 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
2766 row_infos: &[RowInfo],
2767 window: &mut Window,
2768 cx: &mut App,
2769 ) -> Vec<AnyElement> {
2770 self.editor.update(cx, |editor, cx| {
2771 breakpoints
2772 .into_iter()
2773 .filter_map(|(display_row, (text_anchor, bp, state))| {
2774 if row_infos
2775 .get((display_row.0.saturating_sub(range.start.0)) as usize)
2776 .is_some_and(|row_info| {
2777 row_info.expand_info.is_some()
2778 || row_info
2779 .diff_status
2780 .is_some_and(|status| status.is_deleted())
2781 })
2782 {
2783 return None;
2784 }
2785
2786 if range.start > display_row || range.end < display_row {
2787 return None;
2788 }
2789
2790 let row =
2791 MultiBufferRow(DisplayPoint::new(display_row, 0).to_point(&snapshot).row);
2792 if snapshot.is_line_folded(row) {
2793 return None;
2794 }
2795
2796 let button = editor.render_breakpoint(text_anchor, display_row, &bp, state, cx);
2797
2798 let button = prepaint_gutter_button(
2799 button,
2800 display_row,
2801 line_height,
2802 gutter_dimensions,
2803 scroll_pixel_position,
2804 gutter_hitbox,
2805 display_hunks,
2806 window,
2807 cx,
2808 );
2809 Some(button)
2810 })
2811 .collect_vec()
2812 })
2813 }
2814
2815 #[allow(clippy::too_many_arguments)]
2816 fn layout_run_indicators(
2817 &self,
2818 line_height: Pixels,
2819 range: Range<DisplayRow>,
2820 row_infos: &[RowInfo],
2821 scroll_pixel_position: gpui::Point<Pixels>,
2822 gutter_dimensions: &GutterDimensions,
2823 gutter_hitbox: &Hitbox,
2824 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2825 snapshot: &EditorSnapshot,
2826 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
2827 window: &mut Window,
2828 cx: &mut App,
2829 ) -> Vec<AnyElement> {
2830 self.editor.update(cx, |editor, cx| {
2831 let active_task_indicator_row =
2832 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2833 deployed_from,
2834 actions,
2835 ..
2836 })) = editor.context_menu.borrow().as_ref()
2837 {
2838 actions
2839 .tasks()
2840 .map(|tasks| tasks.position.to_display_point(snapshot).row())
2841 .or_else(|| match deployed_from {
2842 Some(CodeActionSource::Indicator(row)) => Some(*row),
2843 _ => None,
2844 })
2845 } else {
2846 None
2847 };
2848
2849 let offset_range_start =
2850 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
2851
2852 let offset_range_end =
2853 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
2854
2855 editor
2856 .tasks
2857 .iter()
2858 .filter_map(|(_, tasks)| {
2859 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot);
2860 if multibuffer_point < offset_range_start
2861 || multibuffer_point > offset_range_end
2862 {
2863 return None;
2864 }
2865 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
2866 let buffer_folded = snapshot
2867 .buffer_snapshot
2868 .buffer_line_for_row(multibuffer_row)
2869 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
2870 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
2871 .unwrap_or(false);
2872 if buffer_folded {
2873 return None;
2874 }
2875
2876 if snapshot.is_line_folded(multibuffer_row) {
2877 // Skip folded indicators, unless it's the starting line of a fold.
2878 if multibuffer_row
2879 .0
2880 .checked_sub(1)
2881 .map_or(false, |previous_row| {
2882 snapshot.is_line_folded(MultiBufferRow(previous_row))
2883 })
2884 {
2885 return None;
2886 }
2887 }
2888
2889 let display_row = multibuffer_point.to_display_point(snapshot).row();
2890 if !range.contains(&display_row) {
2891 return None;
2892 }
2893 if row_infos
2894 .get((display_row - range.start).0 as usize)
2895 .is_some_and(|row_info| row_info.expand_info.is_some())
2896 {
2897 return None;
2898 }
2899
2900 let button = editor.render_run_indicator(
2901 &self.style,
2902 Some(display_row) == active_task_indicator_row,
2903 display_row,
2904 breakpoints.remove(&display_row),
2905 cx,
2906 );
2907
2908 let button = prepaint_gutter_button(
2909 button,
2910 display_row,
2911 line_height,
2912 gutter_dimensions,
2913 scroll_pixel_position,
2914 gutter_hitbox,
2915 display_hunks,
2916 window,
2917 cx,
2918 );
2919 Some(button)
2920 })
2921 .collect_vec()
2922 })
2923 }
2924
2925 fn layout_expand_toggles(
2926 &self,
2927 gutter_hitbox: &Hitbox,
2928 gutter_dimensions: GutterDimensions,
2929 em_width: Pixels,
2930 line_height: Pixels,
2931 scroll_position: gpui::Point<f32>,
2932 buffer_rows: &[RowInfo],
2933 window: &mut Window,
2934 cx: &mut App,
2935 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
2936 if self.editor.read(cx).disable_expand_excerpt_buttons {
2937 return vec![];
2938 }
2939
2940 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
2941
2942 let scroll_top = scroll_position.y * line_height;
2943
2944 let max_line_number_length = self
2945 .editor
2946 .read(cx)
2947 .buffer()
2948 .read(cx)
2949 .snapshot(cx)
2950 .widest_line_number()
2951 .ilog10()
2952 + 1;
2953
2954 let elements = buffer_rows
2955 .into_iter()
2956 .enumerate()
2957 .map(|(ix, row_info)| {
2958 let ExpandInfo {
2959 excerpt_id,
2960 direction,
2961 } = row_info.expand_info?;
2962
2963 let icon_name = match direction {
2964 ExpandExcerptDirection::Up => IconName::ExpandUp,
2965 ExpandExcerptDirection::Down => IconName::ExpandDown,
2966 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
2967 };
2968
2969 let git_gutter_width = Self::gutter_strip_width(line_height);
2970 let available_width = gutter_dimensions.left_padding - git_gutter_width;
2971
2972 let editor = self.editor.clone();
2973 let is_wide = max_line_number_length
2974 >= EditorSettings::get_global(cx).gutter.min_line_number_digits as u32
2975 && row_info
2976 .buffer_row
2977 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
2978 || gutter_dimensions.right_padding == px(0.);
2979
2980 let width = if is_wide {
2981 available_width - px(2.)
2982 } else {
2983 available_width + em_width - px(2.)
2984 };
2985
2986 let toggle = IconButton::new(("expand", ix), icon_name)
2987 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
2988 .selected_icon_color(Color::Custom(cx.theme().colors().editor_foreground))
2989 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
2990 .width(width.into())
2991 .on_click(move |_, window, cx| {
2992 editor.update(cx, |editor, cx| {
2993 editor.expand_excerpt(excerpt_id, direction, window, cx);
2994 });
2995 })
2996 .tooltip(Tooltip::for_action_title(
2997 "Expand Excerpt",
2998 &crate::actions::ExpandExcerpts::default(),
2999 ))
3000 .into_any_element();
3001
3002 let position = point(
3003 git_gutter_width + px(1.),
3004 ix as f32 * line_height - (scroll_top % line_height) + px(1.),
3005 );
3006 let origin = gutter_hitbox.origin + position;
3007
3008 Some((toggle, origin))
3009 })
3010 .collect();
3011
3012 elements
3013 }
3014
3015 fn calculate_relative_line_numbers(
3016 &self,
3017 snapshot: &EditorSnapshot,
3018 rows: &Range<DisplayRow>,
3019 relative_to: Option<DisplayRow>,
3020 ) -> HashMap<DisplayRow, DisplayRowDelta> {
3021 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
3022 let Some(relative_to) = relative_to else {
3023 return relative_rows;
3024 };
3025
3026 let start = rows.start.min(relative_to);
3027 let end = rows.end.max(relative_to);
3028
3029 let buffer_rows = snapshot
3030 .row_infos(start)
3031 .take(1 + end.minus(start) as usize)
3032 .collect::<Vec<_>>();
3033
3034 let head_idx = relative_to.minus(start);
3035 let mut delta = 1;
3036 let mut i = head_idx + 1;
3037 while i < buffer_rows.len() as u32 {
3038 if buffer_rows[i as usize].buffer_row.is_some() {
3039 if rows.contains(&DisplayRow(i + start.0)) {
3040 relative_rows.insert(DisplayRow(i + start.0), delta);
3041 }
3042 delta += 1;
3043 }
3044 i += 1;
3045 }
3046 delta = 1;
3047 i = head_idx.min(buffer_rows.len() as u32 - 1);
3048 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
3049 i -= 1;
3050 }
3051
3052 while i > 0 {
3053 i -= 1;
3054 if buffer_rows[i as usize].buffer_row.is_some() {
3055 if rows.contains(&DisplayRow(i + start.0)) {
3056 relative_rows.insert(DisplayRow(i + start.0), delta);
3057 }
3058 delta += 1;
3059 }
3060 }
3061
3062 relative_rows
3063 }
3064
3065 fn layout_line_numbers(
3066 &self,
3067 gutter_hitbox: Option<&Hitbox>,
3068 gutter_dimensions: GutterDimensions,
3069 line_height: Pixels,
3070 scroll_position: gpui::Point<f32>,
3071 rows: Range<DisplayRow>,
3072 buffer_rows: &[RowInfo],
3073 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3074 newest_selection_head: Option<DisplayPoint>,
3075 snapshot: &EditorSnapshot,
3076 window: &mut Window,
3077 cx: &mut App,
3078 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
3079 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
3080 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode.is_full()
3081 });
3082 if !include_line_numbers {
3083 return Arc::default();
3084 }
3085
3086 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
3087 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
3088 let newest = editor.selections.newest::<Point>(cx);
3089 SelectionLayout::new(
3090 newest,
3091 editor.selections.line_mode,
3092 editor.cursor_shape,
3093 &snapshot.display_snapshot,
3094 true,
3095 true,
3096 None,
3097 )
3098 .head
3099 });
3100 let is_relative = editor.should_use_relative_line_numbers(cx);
3101 (newest_selection_head, is_relative)
3102 });
3103
3104 let relative_to = if is_relative {
3105 Some(newest_selection_head.row())
3106 } else {
3107 None
3108 };
3109 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
3110 let mut line_number = String::new();
3111 let line_numbers = buffer_rows
3112 .into_iter()
3113 .enumerate()
3114 .flat_map(|(ix, row_info)| {
3115 let display_row = DisplayRow(rows.start.0 + ix as u32);
3116 line_number.clear();
3117 let non_relative_number = row_info.buffer_row? + 1;
3118 let number = relative_rows
3119 .get(&display_row)
3120 .unwrap_or(&non_relative_number);
3121 write!(&mut line_number, "{number}").unwrap();
3122 if row_info
3123 .diff_status
3124 .is_some_and(|status| status.is_deleted())
3125 {
3126 return None;
3127 }
3128
3129 let color = active_rows
3130 .get(&display_row)
3131 .map(|spec| {
3132 if spec.breakpoint {
3133 cx.theme().colors().debugger_accent
3134 } else {
3135 cx.theme().colors().editor_active_line_number
3136 }
3137 })
3138 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
3139 let shaped_line =
3140 self.shape_line_number(SharedString::from(&line_number), color, window);
3141 let scroll_top = scroll_position.y * line_height;
3142 let line_origin = gutter_hitbox.map(|hitbox| {
3143 hitbox.origin
3144 + point(
3145 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
3146 ix as f32 * line_height - (scroll_top % line_height),
3147 )
3148 });
3149
3150 #[cfg(not(test))]
3151 let hitbox = line_origin.map(|line_origin| {
3152 window.insert_hitbox(
3153 Bounds::new(line_origin, size(shaped_line.width, line_height)),
3154 HitboxBehavior::Normal,
3155 )
3156 });
3157 #[cfg(test)]
3158 let hitbox = {
3159 let _ = line_origin;
3160 None
3161 };
3162
3163 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
3164 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
3165 let line_number = LineNumberLayout {
3166 shaped_line,
3167 hitbox,
3168 };
3169 Some((multi_buffer_row, line_number))
3170 })
3171 .collect();
3172 Arc::new(line_numbers)
3173 }
3174
3175 fn layout_crease_toggles(
3176 &self,
3177 rows: Range<DisplayRow>,
3178 row_infos: &[RowInfo],
3179 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3180 snapshot: &EditorSnapshot,
3181 window: &mut Window,
3182 cx: &mut App,
3183 ) -> Vec<Option<AnyElement>> {
3184 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
3185 && snapshot.mode.is_full()
3186 && self.editor.read(cx).is_singleton(cx);
3187 if include_fold_statuses {
3188 row_infos
3189 .into_iter()
3190 .enumerate()
3191 .map(|(ix, info)| {
3192 if info.expand_info.is_some() {
3193 return None;
3194 }
3195 let row = info.multibuffer_row?;
3196 let display_row = DisplayRow(rows.start.0 + ix as u32);
3197 let active = active_rows.contains_key(&display_row);
3198
3199 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
3200 })
3201 .collect()
3202 } else {
3203 Vec::new()
3204 }
3205 }
3206
3207 fn layout_crease_trailers(
3208 &self,
3209 buffer_rows: impl IntoIterator<Item = RowInfo>,
3210 snapshot: &EditorSnapshot,
3211 window: &mut Window,
3212 cx: &mut App,
3213 ) -> Vec<Option<AnyElement>> {
3214 buffer_rows
3215 .into_iter()
3216 .map(|row_info| {
3217 if row_info.expand_info.is_some() {
3218 return None;
3219 }
3220 if let Some(row) = row_info.multibuffer_row {
3221 snapshot.render_crease_trailer(row, window, cx)
3222 } else {
3223 None
3224 }
3225 })
3226 .collect()
3227 }
3228
3229 fn layout_lines(
3230 rows: Range<DisplayRow>,
3231 snapshot: &EditorSnapshot,
3232 style: &EditorStyle,
3233 editor_width: Pixels,
3234 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3235 window: &mut Window,
3236 cx: &mut App,
3237 ) -> Vec<LineWithInvisibles> {
3238 if rows.start >= rows.end {
3239 return Vec::new();
3240 }
3241
3242 // Show the placeholder when the editor is empty
3243 if snapshot.is_empty() {
3244 let font_size = style.text.font_size.to_pixels(window.rem_size());
3245 let placeholder_color = cx.theme().colors().text_placeholder;
3246 let placeholder_text = snapshot.placeholder_text();
3247
3248 let placeholder_lines = placeholder_text
3249 .as_ref()
3250 .map_or("", AsRef::as_ref)
3251 .split('\n')
3252 .skip(rows.start.0 as usize)
3253 .chain(iter::repeat(""))
3254 .take(rows.len());
3255 placeholder_lines
3256 .map(move |line| {
3257 let run = TextRun {
3258 len: line.len(),
3259 font: style.text.font(),
3260 color: placeholder_color,
3261 background_color: None,
3262 underline: None,
3263 strikethrough: None,
3264 };
3265 let line =
3266 window
3267 .text_system()
3268 .shape_line(line.to_string().into(), font_size, &[run]);
3269 LineWithInvisibles {
3270 width: line.width,
3271 len: line.len,
3272 fragments: smallvec![LineFragment::Text(line)],
3273 invisibles: Vec::new(),
3274 font_size,
3275 }
3276 })
3277 .collect()
3278 } else {
3279 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
3280 LineWithInvisibles::from_chunks(
3281 chunks,
3282 &style,
3283 MAX_LINE_LEN,
3284 rows.len(),
3285 &snapshot.mode,
3286 editor_width,
3287 is_row_soft_wrapped,
3288 window,
3289 cx,
3290 )
3291 }
3292 }
3293
3294 fn prepaint_lines(
3295 &self,
3296 start_row: DisplayRow,
3297 line_layouts: &mut [LineWithInvisibles],
3298 line_height: Pixels,
3299 scroll_pixel_position: gpui::Point<Pixels>,
3300 content_origin: gpui::Point<Pixels>,
3301 window: &mut Window,
3302 cx: &mut App,
3303 ) -> SmallVec<[AnyElement; 1]> {
3304 let mut line_elements = SmallVec::new();
3305 for (ix, line) in line_layouts.iter_mut().enumerate() {
3306 let row = start_row + DisplayRow(ix as u32);
3307 line.prepaint(
3308 line_height,
3309 scroll_pixel_position,
3310 row,
3311 content_origin,
3312 &mut line_elements,
3313 window,
3314 cx,
3315 );
3316 }
3317 line_elements
3318 }
3319
3320 fn render_block(
3321 &self,
3322 block: &Block,
3323 available_width: AvailableSpace,
3324 block_id: BlockId,
3325 block_row_start: DisplayRow,
3326 snapshot: &EditorSnapshot,
3327 text_x: Pixels,
3328 rows: &Range<DisplayRow>,
3329 line_layouts: &[LineWithInvisibles],
3330 editor_margins: &EditorMargins,
3331 line_height: Pixels,
3332 em_width: Pixels,
3333 text_hitbox: &Hitbox,
3334 editor_width: Pixels,
3335 scroll_width: &mut Pixels,
3336 resized_blocks: &mut HashMap<CustomBlockId, u32>,
3337 row_block_types: &mut HashMap<DisplayRow, bool>,
3338 selections: &[Selection<Point>],
3339 selected_buffer_ids: &Vec<BufferId>,
3340 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3341 sticky_header_excerpt_id: Option<ExcerptId>,
3342 window: &mut Window,
3343 cx: &mut App,
3344 ) -> Option<(AnyElement, Size<Pixels>, DisplayRow, Pixels)> {
3345 let mut x_position = None;
3346 let mut element = match block {
3347 Block::Custom(custom) => {
3348 let block_start = custom.start().to_point(&snapshot.buffer_snapshot);
3349 let block_end = custom.end().to_point(&snapshot.buffer_snapshot);
3350 if block.place_near() && snapshot.is_line_folded(MultiBufferRow(block_start.row)) {
3351 return None;
3352 }
3353 let align_to = block_start.to_display_point(snapshot);
3354 let x_and_width = |layout: &LineWithInvisibles| {
3355 Some((
3356 text_x + layout.x_for_index(align_to.column() as usize),
3357 text_x + layout.width,
3358 ))
3359 };
3360 let line_ix = align_to.row().0.checked_sub(rows.start.0);
3361 x_position =
3362 if let Some(layout) = line_ix.and_then(|ix| line_layouts.get(ix as usize)) {
3363 x_and_width(&layout)
3364 } else {
3365 x_and_width(&layout_line(
3366 align_to.row(),
3367 snapshot,
3368 &self.style,
3369 editor_width,
3370 is_row_soft_wrapped,
3371 window,
3372 cx,
3373 ))
3374 };
3375
3376 let anchor_x = x_position.unwrap().0;
3377
3378 let selected = selections
3379 .binary_search_by(|selection| {
3380 if selection.end <= block_start {
3381 Ordering::Less
3382 } else if selection.start >= block_end {
3383 Ordering::Greater
3384 } else {
3385 Ordering::Equal
3386 }
3387 })
3388 .is_ok();
3389
3390 div()
3391 .size_full()
3392 .children(
3393 (!snapshot.mode.is_minimap() || custom.render_in_minimap).then(|| {
3394 custom.render(&mut BlockContext {
3395 window,
3396 app: cx,
3397 anchor_x,
3398 margins: editor_margins,
3399 line_height,
3400 em_width,
3401 block_id,
3402 selected,
3403 max_width: text_hitbox.size.width.max(*scroll_width),
3404 editor_style: &self.style,
3405 })
3406 }),
3407 )
3408 .into_any()
3409 }
3410
3411 Block::FoldedBuffer {
3412 first_excerpt,
3413 height,
3414 ..
3415 } => {
3416 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
3417 let result = v_flex().id(block_id).w_full().pr(editor_margins.right);
3418
3419 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
3420 result
3421 .child(self.render_buffer_header(
3422 first_excerpt,
3423 true,
3424 selected,
3425 false,
3426 jump_data,
3427 window,
3428 cx,
3429 ))
3430 .into_any_element()
3431 }
3432
3433 Block::ExcerptBoundary {
3434 excerpt,
3435 height,
3436 starts_new_buffer,
3437 ..
3438 } => {
3439 let color = cx.theme().colors().clone();
3440 let mut result = v_flex().id(block_id).w_full();
3441
3442 let jump_data = header_jump_data(snapshot, block_row_start, *height, excerpt);
3443
3444 if *starts_new_buffer {
3445 if sticky_header_excerpt_id != Some(excerpt.id) {
3446 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3447
3448 result = result.child(div().pr(editor_margins.right).child(
3449 self.render_buffer_header(
3450 excerpt, false, selected, false, jump_data, window, cx,
3451 ),
3452 ));
3453 } else {
3454 result =
3455 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
3456 }
3457 } else {
3458 result = result.child(
3459 h_flex().relative().child(
3460 div()
3461 .top(line_height / 2.)
3462 .absolute()
3463 .w_full()
3464 .h_px()
3465 .bg(color.border_variant),
3466 ),
3467 );
3468 };
3469
3470 result.into_any()
3471 }
3472 };
3473
3474 // Discover the element's content height, then round up to the nearest multiple of line height.
3475 let preliminary_size = element.layout_as_root(
3476 size(available_width, AvailableSpace::MinContent),
3477 window,
3478 cx,
3479 );
3480 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
3481 let final_size = if preliminary_size.height == quantized_height {
3482 preliminary_size
3483 } else {
3484 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
3485 };
3486 let mut element_height_in_lines = ((final_size.height / line_height).ceil() as u32).max(1);
3487
3488 let mut row = block_row_start;
3489 let mut x_offset = px(0.);
3490 let mut is_block = true;
3491
3492 if let BlockId::Custom(custom_block_id) = block_id {
3493 if block.has_height() {
3494 if block.place_near() {
3495 if let Some((x_target, line_width)) = x_position {
3496 let margin = em_width * 2;
3497 if line_width + final_size.width + margin
3498 < editor_width + editor_margins.gutter.full_width()
3499 && !row_block_types.contains_key(&(row - 1))
3500 && element_height_in_lines == 1
3501 {
3502 x_offset = line_width + margin;
3503 row = row - 1;
3504 is_block = false;
3505 element_height_in_lines = 0;
3506 row_block_types.insert(row, is_block);
3507 } else {
3508 let max_offset = editor_width + editor_margins.gutter.full_width()
3509 - final_size.width;
3510 let min_offset = (x_target + em_width - final_size.width)
3511 .max(editor_margins.gutter.full_width());
3512 x_offset = x_target.min(max_offset).max(min_offset);
3513 }
3514 }
3515 };
3516 if element_height_in_lines != block.height() {
3517 resized_blocks.insert(custom_block_id, element_height_in_lines);
3518 }
3519 }
3520 }
3521 for i in 0..element_height_in_lines {
3522 row_block_types.insert(row + i, is_block);
3523 }
3524
3525 Some((element, final_size, row, x_offset))
3526 }
3527
3528 fn render_buffer_header(
3529 &self,
3530 for_excerpt: &ExcerptInfo,
3531 is_folded: bool,
3532 is_selected: bool,
3533 is_sticky: bool,
3534 jump_data: JumpData,
3535 window: &mut Window,
3536 cx: &mut App,
3537 ) -> Div {
3538 let editor = self.editor.read(cx);
3539 let file_status = editor
3540 .buffer
3541 .read(cx)
3542 .all_diff_hunks_expanded()
3543 .then(|| {
3544 editor
3545 .project
3546 .as_ref()?
3547 .read(cx)
3548 .status_for_buffer_id(for_excerpt.buffer_id, cx)
3549 })
3550 .flatten();
3551
3552 let include_root = editor
3553 .project
3554 .as_ref()
3555 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
3556 .unwrap_or_default();
3557 let can_open_excerpts = Editor::can_open_excerpts_in_file(for_excerpt.buffer.file());
3558 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
3559 let filename = path
3560 .as_ref()
3561 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
3562 let parent_path = path.as_ref().and_then(|path| {
3563 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
3564 });
3565 let focus_handle = editor.focus_handle(cx);
3566 let colors = cx.theme().colors();
3567
3568 div()
3569 .p_1()
3570 .w_full()
3571 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
3572 .child(
3573 h_flex()
3574 .size_full()
3575 .gap_2()
3576 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
3577 .pl_0p5()
3578 .pr_5()
3579 .rounded_sm()
3580 .when(is_sticky, |el| el.shadow_md())
3581 .border_1()
3582 .map(|div| {
3583 let border_color = if is_selected
3584 && is_folded
3585 && focus_handle.contains_focused(window, cx)
3586 {
3587 colors.border_focused
3588 } else {
3589 colors.border
3590 };
3591 div.border_color(border_color)
3592 })
3593 .bg(colors.editor_subheader_background)
3594 .hover(|style| style.bg(colors.element_hover))
3595 .map(|header| {
3596 let editor = self.editor.clone();
3597 let buffer_id = for_excerpt.buffer_id;
3598 let toggle_chevron_icon =
3599 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
3600 header.child(
3601 div()
3602 .hover(|style| style.bg(colors.element_selected))
3603 .rounded_xs()
3604 .child(
3605 ButtonLike::new("toggle-buffer-fold")
3606 .style(ui::ButtonStyle::Transparent)
3607 .height(px(28.).into())
3608 .width(px(28.).into())
3609 .children(toggle_chevron_icon)
3610 .tooltip({
3611 let focus_handle = focus_handle.clone();
3612 move |window, cx| {
3613 Tooltip::for_action_in(
3614 "Toggle Excerpt Fold",
3615 &ToggleFold,
3616 &focus_handle,
3617 window,
3618 cx,
3619 )
3620 }
3621 })
3622 .on_click(move |_, _, cx| {
3623 if is_folded {
3624 editor.update(cx, |editor, cx| {
3625 editor.unfold_buffer(buffer_id, cx);
3626 });
3627 } else {
3628 editor.update(cx, |editor, cx| {
3629 editor.fold_buffer(buffer_id, cx);
3630 });
3631 }
3632 }),
3633 ),
3634 )
3635 })
3636 .children(
3637 editor
3638 .addons
3639 .values()
3640 .filter_map(|addon| {
3641 addon.render_buffer_header_controls(for_excerpt, window, cx)
3642 })
3643 .take(1),
3644 )
3645 .child(
3646 h_flex()
3647 .cursor_pointer()
3648 .id("path header block")
3649 .size_full()
3650 .justify_between()
3651 .child(
3652 h_flex()
3653 .gap_2()
3654 .child(
3655 Label::new(
3656 filename
3657 .map(SharedString::from)
3658 .unwrap_or_else(|| "untitled".into()),
3659 )
3660 .single_line()
3661 .when_some(
3662 file_status,
3663 |el, status| {
3664 el.color(if status.is_conflicted() {
3665 Color::Conflict
3666 } else if status.is_modified() {
3667 Color::Modified
3668 } else if status.is_deleted() {
3669 Color::Disabled
3670 } else {
3671 Color::Created
3672 })
3673 .when(status.is_deleted(), |el| el.strikethrough())
3674 },
3675 ),
3676 )
3677 .when_some(parent_path, |then, path| {
3678 then.child(div().child(path).text_color(
3679 if file_status.is_some_and(FileStatus::is_deleted) {
3680 colors.text_disabled
3681 } else {
3682 colors.text_muted
3683 },
3684 ))
3685 }),
3686 )
3687 .when(can_open_excerpts && is_selected && path.is_some(), |el| {
3688 el.child(
3689 h_flex()
3690 .id("jump-to-file-button")
3691 .gap_2p5()
3692 .child(Label::new("Jump To File"))
3693 .children(
3694 KeyBinding::for_action_in(
3695 &OpenExcerpts,
3696 &focus_handle,
3697 window,
3698 cx,
3699 )
3700 .map(|binding| binding.into_any_element()),
3701 ),
3702 )
3703 })
3704 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
3705 .on_click(window.listener_for(&self.editor, {
3706 move |editor, e: &ClickEvent, window, cx| {
3707 editor.open_excerpts_common(
3708 Some(jump_data.clone()),
3709 e.down.modifiers.secondary(),
3710 window,
3711 cx,
3712 );
3713 }
3714 })),
3715 ),
3716 )
3717 }
3718
3719 fn render_blocks(
3720 &self,
3721 rows: Range<DisplayRow>,
3722 snapshot: &EditorSnapshot,
3723 hitbox: &Hitbox,
3724 text_hitbox: &Hitbox,
3725 editor_width: Pixels,
3726 scroll_width: &mut Pixels,
3727 editor_margins: &EditorMargins,
3728 em_width: Pixels,
3729 text_x: Pixels,
3730 line_height: Pixels,
3731 line_layouts: &mut [LineWithInvisibles],
3732 selections: &[Selection<Point>],
3733 selected_buffer_ids: &Vec<BufferId>,
3734 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3735 sticky_header_excerpt_id: Option<ExcerptId>,
3736 window: &mut Window,
3737 cx: &mut App,
3738 ) -> Result<(Vec<BlockLayout>, HashMap<DisplayRow, bool>), HashMap<CustomBlockId, u32>> {
3739 let (fixed_blocks, non_fixed_blocks) = snapshot
3740 .blocks_in_range(rows.clone())
3741 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
3742
3743 let mut focused_block = self
3744 .editor
3745 .update(cx, |editor, _| editor.take_focused_block());
3746 let mut fixed_block_max_width = Pixels::ZERO;
3747 let mut blocks = Vec::new();
3748 let mut resized_blocks = HashMap::default();
3749 let mut row_block_types = HashMap::default();
3750
3751 for (row, block) in fixed_blocks {
3752 let block_id = block.id();
3753
3754 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3755 focused_block = None;
3756 }
3757
3758 if let Some((element, element_size, row, x_offset)) = self.render_block(
3759 block,
3760 AvailableSpace::MinContent,
3761 block_id,
3762 row,
3763 snapshot,
3764 text_x,
3765 &rows,
3766 line_layouts,
3767 editor_margins,
3768 line_height,
3769 em_width,
3770 text_hitbox,
3771 editor_width,
3772 scroll_width,
3773 &mut resized_blocks,
3774 &mut row_block_types,
3775 selections,
3776 selected_buffer_ids,
3777 is_row_soft_wrapped,
3778 sticky_header_excerpt_id,
3779 window,
3780 cx,
3781 ) {
3782 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
3783 blocks.push(BlockLayout {
3784 id: block_id,
3785 x_offset,
3786 row: Some(row),
3787 element,
3788 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
3789 style: BlockStyle::Fixed,
3790 overlaps_gutter: true,
3791 is_buffer_header: block.is_buffer_header(),
3792 });
3793 }
3794 }
3795
3796 for (row, block) in non_fixed_blocks {
3797 let style = block.style();
3798 let width = match (style, block.place_near()) {
3799 (_, true) => AvailableSpace::MinContent,
3800 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
3801 (BlockStyle::Flex, _) => hitbox
3802 .size
3803 .width
3804 .max(fixed_block_max_width)
3805 .max(editor_margins.gutter.width + *scroll_width)
3806 .into(),
3807 (BlockStyle::Fixed, _) => unreachable!(),
3808 };
3809 let block_id = block.id();
3810
3811 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3812 focused_block = None;
3813 }
3814
3815 if let Some((element, element_size, row, x_offset)) = self.render_block(
3816 block,
3817 width,
3818 block_id,
3819 row,
3820 snapshot,
3821 text_x,
3822 &rows,
3823 line_layouts,
3824 editor_margins,
3825 line_height,
3826 em_width,
3827 text_hitbox,
3828 editor_width,
3829 scroll_width,
3830 &mut resized_blocks,
3831 &mut row_block_types,
3832 selections,
3833 selected_buffer_ids,
3834 is_row_soft_wrapped,
3835 sticky_header_excerpt_id,
3836 window,
3837 cx,
3838 ) {
3839 blocks.push(BlockLayout {
3840 id: block_id,
3841 x_offset,
3842 row: Some(row),
3843 element,
3844 available_space: size(width, element_size.height.into()),
3845 style,
3846 overlaps_gutter: !block.place_near(),
3847 is_buffer_header: block.is_buffer_header(),
3848 });
3849 }
3850 }
3851
3852 if let Some(focused_block) = focused_block {
3853 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
3854 if focus_handle.is_focused(window) {
3855 if let Some(block) = snapshot.block_for_id(focused_block.id) {
3856 let style = block.style();
3857 let width = match style {
3858 BlockStyle::Fixed => AvailableSpace::MinContent,
3859 BlockStyle::Flex => AvailableSpace::Definite(
3860 hitbox
3861 .size
3862 .width
3863 .max(fixed_block_max_width)
3864 .max(editor_margins.gutter.width + *scroll_width),
3865 ),
3866 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
3867 };
3868
3869 if let Some((element, element_size, _, x_offset)) = self.render_block(
3870 &block,
3871 width,
3872 focused_block.id,
3873 rows.end,
3874 snapshot,
3875 text_x,
3876 &rows,
3877 line_layouts,
3878 editor_margins,
3879 line_height,
3880 em_width,
3881 text_hitbox,
3882 editor_width,
3883 scroll_width,
3884 &mut resized_blocks,
3885 &mut row_block_types,
3886 selections,
3887 selected_buffer_ids,
3888 is_row_soft_wrapped,
3889 sticky_header_excerpt_id,
3890 window,
3891 cx,
3892 ) {
3893 blocks.push(BlockLayout {
3894 id: block.id(),
3895 x_offset,
3896 row: None,
3897 element,
3898 available_space: size(width, element_size.height.into()),
3899 style,
3900 overlaps_gutter: true,
3901 is_buffer_header: block.is_buffer_header(),
3902 });
3903 }
3904 }
3905 }
3906 }
3907 }
3908
3909 if resized_blocks.is_empty() {
3910 *scroll_width =
3911 (*scroll_width).max(fixed_block_max_width - editor_margins.gutter.width);
3912 Ok((blocks, row_block_types))
3913 } else {
3914 Err(resized_blocks)
3915 }
3916 }
3917
3918 fn layout_blocks(
3919 &self,
3920 blocks: &mut Vec<BlockLayout>,
3921 hitbox: &Hitbox,
3922 line_height: Pixels,
3923 scroll_pixel_position: gpui::Point<Pixels>,
3924 window: &mut Window,
3925 cx: &mut App,
3926 ) {
3927 for block in blocks {
3928 let mut origin = if let Some(row) = block.row {
3929 hitbox.origin
3930 + point(
3931 block.x_offset,
3932 row.as_f32() * line_height - scroll_pixel_position.y,
3933 )
3934 } else {
3935 // Position the block outside the visible area
3936 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
3937 };
3938
3939 if !matches!(block.style, BlockStyle::Sticky) {
3940 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
3941 }
3942
3943 let focus_handle =
3944 block
3945 .element
3946 .prepaint_as_root(origin, block.available_space, window, cx);
3947
3948 if let Some(focus_handle) = focus_handle {
3949 self.editor.update(cx, |editor, _cx| {
3950 editor.set_focused_block(FocusedBlock {
3951 id: block.id,
3952 focus_handle: focus_handle.downgrade(),
3953 });
3954 });
3955 }
3956 }
3957 }
3958
3959 fn layout_sticky_buffer_header(
3960 &self,
3961 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
3962 scroll_position: f32,
3963 line_height: Pixels,
3964 right_margin: Pixels,
3965 snapshot: &EditorSnapshot,
3966 hitbox: &Hitbox,
3967 selected_buffer_ids: &Vec<BufferId>,
3968 blocks: &[BlockLayout],
3969 window: &mut Window,
3970 cx: &mut App,
3971 ) -> AnyElement {
3972 let jump_data = header_jump_data(
3973 snapshot,
3974 DisplayRow(scroll_position as u32),
3975 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3976 excerpt,
3977 );
3978
3979 let editor_bg_color = cx.theme().colors().editor_background;
3980
3981 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3982
3983 let available_width = hitbox.bounds.size.width - right_margin;
3984
3985 let mut header = v_flex()
3986 .relative()
3987 .child(
3988 div()
3989 .w(available_width)
3990 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3991 .bg(linear_gradient(
3992 0.,
3993 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3994 linear_color_stop(editor_bg_color, 0.6),
3995 ))
3996 .absolute()
3997 .top_0(),
3998 )
3999 .child(
4000 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
4001 .into_any_element(),
4002 )
4003 .into_any_element();
4004
4005 let mut origin = hitbox.origin;
4006 // Move floating header up to avoid colliding with the next buffer header.
4007 for block in blocks.iter() {
4008 if !block.is_buffer_header {
4009 continue;
4010 }
4011
4012 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position as u32) else {
4013 continue;
4014 };
4015
4016 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
4017 let offset = scroll_position - max_row as f32;
4018
4019 if offset > 0.0 {
4020 origin.y -= offset * line_height;
4021 }
4022 break;
4023 }
4024
4025 let size = size(
4026 AvailableSpace::Definite(available_width),
4027 AvailableSpace::MinContent,
4028 );
4029
4030 header.prepaint_as_root(origin, size, window, cx);
4031
4032 header
4033 }
4034
4035 fn layout_cursor_popovers(
4036 &self,
4037 line_height: Pixels,
4038 text_hitbox: &Hitbox,
4039 content_origin: gpui::Point<Pixels>,
4040 right_margin: Pixels,
4041 start_row: DisplayRow,
4042 scroll_pixel_position: gpui::Point<Pixels>,
4043 line_layouts: &[LineWithInvisibles],
4044 cursor: DisplayPoint,
4045 cursor_point: Point,
4046 style: &EditorStyle,
4047 window: &mut Window,
4048 cx: &mut App,
4049 ) -> Option<ContextMenuLayout> {
4050 let mut min_menu_height = Pixels::ZERO;
4051 let mut max_menu_height = Pixels::ZERO;
4052 let mut height_above_menu = Pixels::ZERO;
4053 let height_below_menu = Pixels::ZERO;
4054 let mut edit_prediction_popover_visible = false;
4055 let mut context_menu_visible = false;
4056 let context_menu_placement;
4057
4058 {
4059 let editor = self.editor.read(cx);
4060 if editor
4061 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
4062 {
4063 height_above_menu +=
4064 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
4065 edit_prediction_popover_visible = true;
4066 }
4067
4068 if editor.context_menu_visible() {
4069 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
4070 let (min_height_in_lines, max_height_in_lines) = editor
4071 .context_menu_options
4072 .as_ref()
4073 .map_or((3, 12), |options| {
4074 (options.min_entries_visible, options.max_entries_visible)
4075 });
4076
4077 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4078 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4079 context_menu_visible = true;
4080 }
4081 }
4082 context_menu_placement = editor
4083 .context_menu_options
4084 .as_ref()
4085 .and_then(|options| options.placement.clone());
4086 }
4087
4088 let visible = edit_prediction_popover_visible || context_menu_visible;
4089 if !visible {
4090 return None;
4091 }
4092
4093 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
4094 let target_position = content_origin
4095 + gpui::Point {
4096 x: cmp::max(
4097 px(0.),
4098 cursor_row_layout.x_for_index(cursor.column() as usize)
4099 - scroll_pixel_position.x,
4100 ),
4101 y: cmp::max(
4102 px(0.),
4103 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
4104 ),
4105 };
4106
4107 let viewport_bounds =
4108 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4109 right: -right_margin - MENU_GAP,
4110 ..Default::default()
4111 });
4112
4113 let min_height = height_above_menu + min_menu_height + height_below_menu;
4114 let max_height = height_above_menu + max_menu_height + height_below_menu;
4115 let (laid_out_popovers, y_flipped) = self.layout_popovers_above_or_below_line(
4116 target_position,
4117 line_height,
4118 min_height,
4119 max_height,
4120 context_menu_placement,
4121 text_hitbox,
4122 viewport_bounds,
4123 window,
4124 cx,
4125 |height, max_width_for_stable_x, y_flipped, window, cx| {
4126 // First layout the menu to get its size - others can be at least this wide.
4127 let context_menu = if context_menu_visible {
4128 let menu_height = if y_flipped {
4129 height - height_below_menu
4130 } else {
4131 height - height_above_menu
4132 };
4133 let mut element = self
4134 .render_context_menu(line_height, menu_height, window, cx)
4135 .expect("Visible context menu should always render.");
4136 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4137 Some((CursorPopoverType::CodeContextMenu, element, size))
4138 } else {
4139 None
4140 };
4141 let min_width = context_menu
4142 .as_ref()
4143 .map_or(px(0.), |(_, _, size)| size.width);
4144 let max_width = max_width_for_stable_x.max(
4145 context_menu
4146 .as_ref()
4147 .map_or(px(0.), |(_, _, size)| size.width),
4148 );
4149
4150 let edit_prediction = if edit_prediction_popover_visible {
4151 self.editor.update(cx, move |editor, cx| {
4152 let accept_binding =
4153 editor.accept_edit_prediction_keybind(false, window, cx);
4154 let mut element = editor.render_edit_prediction_cursor_popover(
4155 min_width,
4156 max_width,
4157 cursor_point,
4158 style,
4159 accept_binding.keystroke(),
4160 window,
4161 cx,
4162 )?;
4163 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4164 Some((CursorPopoverType::EditPrediction, element, size))
4165 })
4166 } else {
4167 None
4168 };
4169 vec![edit_prediction, context_menu]
4170 .into_iter()
4171 .flatten()
4172 .collect::<Vec<_>>()
4173 },
4174 )?;
4175
4176 let (menu_ix, (_, menu_bounds)) = laid_out_popovers
4177 .iter()
4178 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))?;
4179 let last_ix = laid_out_popovers.len() - 1;
4180 let menu_is_last = menu_ix == last_ix;
4181 let first_popover_bounds = laid_out_popovers[0].1;
4182 let last_popover_bounds = laid_out_popovers[last_ix].1;
4183
4184 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
4185 // right, and otherwise it goes below or to the right.
4186 let mut target_bounds = Bounds::from_corners(
4187 first_popover_bounds.origin,
4188 last_popover_bounds.bottom_right(),
4189 );
4190 target_bounds.size.width = menu_bounds.size.width;
4191
4192 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
4193 // based on this is preferred for layout stability.
4194 let mut max_target_bounds = target_bounds;
4195 max_target_bounds.size.height = max_height;
4196 if y_flipped {
4197 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
4198 }
4199
4200 // Add spacing around `target_bounds` and `max_target_bounds`.
4201 let mut extend_amount = Edges::all(MENU_GAP);
4202 if y_flipped {
4203 extend_amount.bottom = line_height;
4204 } else {
4205 extend_amount.top = line_height;
4206 }
4207 let target_bounds = target_bounds.extend(extend_amount);
4208 let max_target_bounds = max_target_bounds.extend(extend_amount);
4209
4210 let must_place_above_or_below =
4211 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
4212 laid_out_popovers[menu_ix + 1..]
4213 .iter()
4214 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
4215 } else {
4216 false
4217 };
4218
4219 let aside_bounds = self.layout_context_menu_aside(
4220 y_flipped,
4221 *menu_bounds,
4222 target_bounds,
4223 max_target_bounds,
4224 max_menu_height,
4225 must_place_above_or_below,
4226 text_hitbox,
4227 viewport_bounds,
4228 window,
4229 cx,
4230 );
4231
4232 if let Some(menu_bounds) = laid_out_popovers.iter().find_map(|(popover_type, bounds)| {
4233 if matches!(popover_type, CursorPopoverType::CodeContextMenu) {
4234 Some(*bounds)
4235 } else {
4236 None
4237 }
4238 }) {
4239 let bounds = if let Some(aside_bounds) = aside_bounds {
4240 menu_bounds.union(&aside_bounds)
4241 } else {
4242 menu_bounds
4243 };
4244 return Some(ContextMenuLayout { y_flipped, bounds });
4245 }
4246
4247 None
4248 }
4249
4250 fn layout_gutter_menu(
4251 &self,
4252 line_height: Pixels,
4253 text_hitbox: &Hitbox,
4254 content_origin: gpui::Point<Pixels>,
4255 right_margin: Pixels,
4256 scroll_pixel_position: gpui::Point<Pixels>,
4257 gutter_overshoot: Pixels,
4258 window: &mut Window,
4259 cx: &mut App,
4260 ) {
4261 let editor = self.editor.read(cx);
4262 if !editor.context_menu_visible() {
4263 return;
4264 }
4265 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
4266 editor.context_menu_origin()
4267 else {
4268 return;
4269 };
4270 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
4271 // indicator than just a plain first column of the text field.
4272 let target_position = content_origin
4273 + gpui::Point {
4274 x: -gutter_overshoot,
4275 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
4276 };
4277
4278 let (min_height_in_lines, max_height_in_lines) = editor
4279 .context_menu_options
4280 .as_ref()
4281 .map_or((3, 12), |options| {
4282 (options.min_entries_visible, options.max_entries_visible)
4283 });
4284
4285 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4286 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4287 let viewport_bounds =
4288 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4289 right: -right_margin - MENU_GAP,
4290 ..Default::default()
4291 });
4292 self.layout_popovers_above_or_below_line(
4293 target_position,
4294 line_height,
4295 min_height,
4296 max_height,
4297 editor
4298 .context_menu_options
4299 .as_ref()
4300 .and_then(|options| options.placement.clone()),
4301 text_hitbox,
4302 viewport_bounds,
4303 window,
4304 cx,
4305 move |height, _max_width_for_stable_x, _, window, cx| {
4306 let mut element = self
4307 .render_context_menu(line_height, height, window, cx)
4308 .expect("Visible context menu should always render.");
4309 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4310 vec![(CursorPopoverType::CodeContextMenu, element, size)]
4311 },
4312 );
4313 }
4314
4315 fn layout_popovers_above_or_below_line(
4316 &self,
4317 target_position: gpui::Point<Pixels>,
4318 line_height: Pixels,
4319 min_height: Pixels,
4320 max_height: Pixels,
4321 placement: Option<ContextMenuPlacement>,
4322 text_hitbox: &Hitbox,
4323 viewport_bounds: Bounds<Pixels>,
4324 window: &mut Window,
4325 cx: &mut App,
4326 make_sized_popovers: impl FnOnce(
4327 Pixels,
4328 Pixels,
4329 bool,
4330 &mut Window,
4331 &mut App,
4332 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
4333 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
4334 let text_style = TextStyleRefinement {
4335 line_height: Some(DefiniteLength::Fraction(
4336 BufferLineHeight::Comfortable.value(),
4337 )),
4338 ..Default::default()
4339 };
4340 window.with_text_style(Some(text_style), |window| {
4341 // If the max height won't fit below and there is more space above, put it above the line.
4342 let bottom_y_when_flipped = target_position.y - line_height;
4343 let available_above = bottom_y_when_flipped - text_hitbox.top();
4344 let available_below = text_hitbox.bottom() - target_position.y;
4345 let y_overflows_below = max_height > available_below;
4346 let mut y_flipped = match placement {
4347 Some(ContextMenuPlacement::Above) => true,
4348 Some(ContextMenuPlacement::Below) => false,
4349 None => y_overflows_below && available_above > available_below,
4350 };
4351 let mut height = cmp::min(
4352 max_height,
4353 if y_flipped {
4354 available_above
4355 } else {
4356 available_below
4357 },
4358 );
4359
4360 // If the min height doesn't fit within text bounds, instead fit within the window.
4361 if height < min_height {
4362 let available_above = bottom_y_when_flipped;
4363 let available_below = viewport_bounds.bottom() - target_position.y;
4364 let (y_flipped_override, height_override) = match placement {
4365 Some(ContextMenuPlacement::Above) => {
4366 (true, cmp::min(available_above, min_height))
4367 }
4368 Some(ContextMenuPlacement::Below) => {
4369 (false, cmp::min(available_below, min_height))
4370 }
4371 None => {
4372 if available_below > min_height {
4373 (false, min_height)
4374 } else if available_above > min_height {
4375 (true, min_height)
4376 } else if available_above > available_below {
4377 (true, available_above)
4378 } else {
4379 (false, available_below)
4380 }
4381 }
4382 };
4383 y_flipped = y_flipped_override;
4384 height = height_override;
4385 }
4386
4387 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
4388
4389 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
4390 // for very narrow windows.
4391 let popovers =
4392 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
4393 if popovers.is_empty() {
4394 return None;
4395 }
4396
4397 let max_width = popovers
4398 .iter()
4399 .map(|(_, _, size)| size.width)
4400 .max()
4401 .unwrap_or_default();
4402
4403 let mut current_position = gpui::Point {
4404 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
4405 // overflow. Include space for the scrollbar.
4406 x: target_position
4407 .x
4408 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
4409 y: if y_flipped {
4410 bottom_y_when_flipped
4411 } else {
4412 target_position.y
4413 },
4414 };
4415
4416 let mut laid_out_popovers = popovers
4417 .into_iter()
4418 .map(|(popover_type, element, size)| {
4419 if y_flipped {
4420 current_position.y -= size.height;
4421 }
4422 let position = current_position;
4423 window.defer_draw(element, current_position, 1);
4424 if !y_flipped {
4425 current_position.y += size.height + MENU_GAP;
4426 } else {
4427 current_position.y -= MENU_GAP;
4428 }
4429 (popover_type, Bounds::new(position, size))
4430 })
4431 .collect::<Vec<_>>();
4432
4433 if y_flipped {
4434 laid_out_popovers.reverse();
4435 }
4436
4437 Some((laid_out_popovers, y_flipped))
4438 })
4439 }
4440
4441 fn layout_context_menu_aside(
4442 &self,
4443 y_flipped: bool,
4444 menu_bounds: Bounds<Pixels>,
4445 target_bounds: Bounds<Pixels>,
4446 max_target_bounds: Bounds<Pixels>,
4447 max_height: Pixels,
4448 must_place_above_or_below: bool,
4449 text_hitbox: &Hitbox,
4450 viewport_bounds: Bounds<Pixels>,
4451 window: &mut Window,
4452 cx: &mut App,
4453 ) -> Option<Bounds<Pixels>> {
4454 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
4455 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
4456 && !must_place_above_or_below
4457 {
4458 let max_width = cmp::min(
4459 available_within_viewport.right - px(1.),
4460 MENU_ASIDE_MAX_WIDTH,
4461 );
4462 let mut aside = self.render_context_menu_aside(
4463 size(max_width, max_height - POPOVER_Y_PADDING),
4464 window,
4465 cx,
4466 )?;
4467 let size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
4468 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
4469 Some((aside, right_position, size))
4470 } else {
4471 let max_size = size(
4472 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
4473 // won't be needed here.
4474 cmp::min(
4475 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
4476 viewport_bounds.right(),
4477 ),
4478 cmp::min(
4479 max_height,
4480 cmp::max(
4481 available_within_viewport.top,
4482 available_within_viewport.bottom,
4483 ),
4484 ) - POPOVER_Y_PADDING,
4485 );
4486 let mut aside = self.render_context_menu_aside(max_size, window, cx)?;
4487 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
4488
4489 let top_position = point(
4490 menu_bounds.origin.x,
4491 target_bounds.top() - actual_size.height,
4492 );
4493 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
4494
4495 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
4496 // Prefer to fit on the same side of the line as the menu, then on the other side of
4497 // the line.
4498 if !y_flipped && wanted.height < available.bottom {
4499 Some(bottom_position)
4500 } else if !y_flipped && wanted.height < available.top {
4501 Some(top_position)
4502 } else if y_flipped && wanted.height < available.top {
4503 Some(top_position)
4504 } else if y_flipped && wanted.height < available.bottom {
4505 Some(bottom_position)
4506 } else {
4507 None
4508 }
4509 };
4510
4511 // Prefer choosing a direction using max sizes rather than actual size for stability.
4512 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
4513 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
4514 let aside_position = fit_within(available_within_text, wanted)
4515 // Fallback: fit max size in window.
4516 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
4517 // Fallback: fit actual size in window.
4518 .or_else(|| fit_within(available_within_viewport, actual_size));
4519
4520 aside_position.map(|position| (aside, position, actual_size))
4521 };
4522
4523 // Skip drawing if it doesn't fit anywhere.
4524 if let Some((aside, position, size)) = positioned_aside {
4525 let aside_bounds = Bounds::new(position, size);
4526 window.defer_draw(aside, position, 2);
4527 return Some(aside_bounds);
4528 }
4529
4530 None
4531 }
4532
4533 fn render_context_menu(
4534 &self,
4535 line_height: Pixels,
4536 height: Pixels,
4537 window: &mut Window,
4538 cx: &mut App,
4539 ) -> Option<AnyElement> {
4540 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
4541 self.editor.update(cx, |editor, cx| {
4542 editor.render_context_menu(&self.style, max_height_in_lines, window, cx)
4543 })
4544 }
4545
4546 fn render_context_menu_aside(
4547 &self,
4548 max_size: Size<Pixels>,
4549 window: &mut Window,
4550 cx: &mut App,
4551 ) -> Option<AnyElement> {
4552 if max_size.width < px(100.) || max_size.height < px(12.) {
4553 None
4554 } else {
4555 self.editor.update(cx, |editor, cx| {
4556 editor.render_context_menu_aside(max_size, window, cx)
4557 })
4558 }
4559 }
4560
4561 fn layout_mouse_context_menu(
4562 &self,
4563 editor_snapshot: &EditorSnapshot,
4564 visible_range: Range<DisplayRow>,
4565 content_origin: gpui::Point<Pixels>,
4566 window: &mut Window,
4567 cx: &mut App,
4568 ) -> Option<AnyElement> {
4569 let position = self.editor.update(cx, |editor, _cx| {
4570 let visible_start_point = editor.display_to_pixel_point(
4571 DisplayPoint::new(visible_range.start, 0),
4572 editor_snapshot,
4573 window,
4574 )?;
4575 let visible_end_point = editor.display_to_pixel_point(
4576 DisplayPoint::new(visible_range.end, 0),
4577 editor_snapshot,
4578 window,
4579 )?;
4580
4581 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
4582 let (source_display_point, position) = match mouse_context_menu.position {
4583 MenuPosition::PinnedToScreen(point) => (None, point),
4584 MenuPosition::PinnedToEditor { source, offset } => {
4585 let source_display_point = source.to_display_point(editor_snapshot);
4586 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
4587 let position = content_origin + source_point + offset;
4588 (Some(source_display_point), position)
4589 }
4590 };
4591
4592 let source_included = source_display_point.map_or(true, |source_display_point| {
4593 visible_range
4594 .to_inclusive()
4595 .contains(&source_display_point.row())
4596 });
4597 let position_included =
4598 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
4599 if !source_included && !position_included {
4600 None
4601 } else {
4602 Some(position)
4603 }
4604 })?;
4605
4606 let text_style = TextStyleRefinement {
4607 line_height: Some(DefiniteLength::Fraction(
4608 BufferLineHeight::Comfortable.value(),
4609 )),
4610 ..Default::default()
4611 };
4612 window.with_text_style(Some(text_style), |window| {
4613 let mut element = self.editor.read_with(cx, |editor, _| {
4614 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
4615 let context_menu = mouse_context_menu.context_menu.clone();
4616
4617 Some(
4618 deferred(
4619 anchored()
4620 .position(position)
4621 .child(context_menu)
4622 .anchor(Corner::TopLeft)
4623 .snap_to_window_with_margin(px(8.)),
4624 )
4625 .with_priority(1)
4626 .into_any(),
4627 )
4628 })?;
4629
4630 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
4631 Some(element)
4632 })
4633 }
4634
4635 fn layout_hover_popovers(
4636 &self,
4637 snapshot: &EditorSnapshot,
4638 hitbox: &Hitbox,
4639 visible_display_row_range: Range<DisplayRow>,
4640 content_origin: gpui::Point<Pixels>,
4641 scroll_pixel_position: gpui::Point<Pixels>,
4642 line_layouts: &[LineWithInvisibles],
4643 line_height: Pixels,
4644 em_width: Pixels,
4645 context_menu_layout: Option<ContextMenuLayout>,
4646 window: &mut Window,
4647 cx: &mut App,
4648 ) {
4649 struct MeasuredHoverPopover {
4650 element: AnyElement,
4651 size: Size<Pixels>,
4652 horizontal_offset: Pixels,
4653 }
4654
4655 let max_size = size(
4656 (120. * em_width) // Default size
4657 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4658 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4659 (16. * line_height) // Default size
4660 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4661 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4662 );
4663
4664 let hover_popovers = self.editor.update(cx, |editor, cx| {
4665 editor.hover_state.render(
4666 snapshot,
4667 visible_display_row_range.clone(),
4668 max_size,
4669 window,
4670 cx,
4671 )
4672 });
4673 let Some((position, hover_popovers)) = hover_popovers else {
4674 return;
4675 };
4676
4677 // This is safe because we check on layout whether the required row is available
4678 let hovered_row_layout =
4679 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
4680
4681 // Compute Hovered Point
4682 let x =
4683 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
4684 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
4685 let hovered_point = content_origin + point(x, y);
4686
4687 let mut overall_height = Pixels::ZERO;
4688 let mut measured_hover_popovers = Vec::new();
4689 for (position, mut hover_popover) in hover_popovers.into_iter().with_position() {
4690 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
4691 let horizontal_offset =
4692 (hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
4693 .min(Pixels::ZERO);
4694 match position {
4695 itertools::Position::Middle | itertools::Position::Last => {
4696 overall_height += HOVER_POPOVER_GAP
4697 }
4698 _ => {}
4699 }
4700 overall_height += size.height;
4701 measured_hover_popovers.push(MeasuredHoverPopover {
4702 element: hover_popover,
4703 size,
4704 horizontal_offset,
4705 });
4706 }
4707
4708 fn draw_occluder(
4709 width: Pixels,
4710 origin: gpui::Point<Pixels>,
4711 window: &mut Window,
4712 cx: &mut App,
4713 ) {
4714 let mut occlusion = div()
4715 .size_full()
4716 .occlude()
4717 .on_mouse_move(|_, _, cx| cx.stop_propagation())
4718 .into_any_element();
4719 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
4720 window.defer_draw(occlusion, origin, 2);
4721 }
4722
4723 fn place_popovers_above(
4724 hovered_point: gpui::Point<Pixels>,
4725 measured_hover_popovers: Vec<MeasuredHoverPopover>,
4726 window: &mut Window,
4727 cx: &mut App,
4728 ) {
4729 let mut current_y = hovered_point.y;
4730 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4731 let size = popover.size;
4732 let popover_origin = point(
4733 hovered_point.x + popover.horizontal_offset,
4734 current_y - size.height,
4735 );
4736
4737 window.defer_draw(popover.element, popover_origin, 2);
4738 if position != itertools::Position::Last {
4739 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
4740 draw_occluder(size.width, origin, window, cx);
4741 }
4742
4743 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4744 }
4745 }
4746
4747 fn place_popovers_below(
4748 hovered_point: gpui::Point<Pixels>,
4749 measured_hover_popovers: Vec<MeasuredHoverPopover>,
4750 line_height: Pixels,
4751 window: &mut Window,
4752 cx: &mut App,
4753 ) {
4754 let mut current_y = hovered_point.y + line_height;
4755 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4756 let size = popover.size;
4757 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4758
4759 window.defer_draw(popover.element, popover_origin, 2);
4760 if position != itertools::Position::Last {
4761 let origin = point(popover_origin.x, popover_origin.y + size.height);
4762 draw_occluder(size.width, origin, window, cx);
4763 }
4764
4765 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4766 }
4767 }
4768
4769 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
4770 context_menu_layout
4771 .as_ref()
4772 .map_or(false, |menu| bounds.intersects(&menu.bounds))
4773 };
4774
4775 let can_place_above = {
4776 let mut bounds_above = Vec::new();
4777 let mut current_y = hovered_point.y;
4778 for popover in &measured_hover_popovers {
4779 let size = popover.size;
4780 let popover_origin = point(
4781 hovered_point.x + popover.horizontal_offset,
4782 current_y - size.height,
4783 );
4784 bounds_above.push(Bounds::new(popover_origin, size));
4785 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4786 }
4787 bounds_above
4788 .iter()
4789 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
4790 };
4791
4792 let can_place_below = || {
4793 let mut bounds_below = Vec::new();
4794 let mut current_y = hovered_point.y + line_height;
4795 for popover in &measured_hover_popovers {
4796 let size = popover.size;
4797 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4798 bounds_below.push(Bounds::new(popover_origin, size));
4799 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4800 }
4801 bounds_below
4802 .iter()
4803 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
4804 };
4805
4806 if can_place_above {
4807 // try placing above hovered point
4808 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
4809 } else if can_place_below() {
4810 // try placing below hovered point
4811 place_popovers_below(
4812 hovered_point,
4813 measured_hover_popovers,
4814 line_height,
4815 window,
4816 cx,
4817 );
4818 } else {
4819 // try to place popovers around the context menu
4820 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
4821 let total_width = measured_hover_popovers
4822 .iter()
4823 .map(|p| p.size.width)
4824 .max()
4825 .unwrap_or(Pixels::ZERO);
4826 let y_for_horizontal_positioning = if menu.y_flipped {
4827 menu.bounds.bottom() - overall_height
4828 } else {
4829 menu.bounds.top()
4830 };
4831 let possible_origins = vec![
4832 // left of context menu
4833 point(
4834 menu.bounds.left() - total_width - HOVER_POPOVER_GAP,
4835 y_for_horizontal_positioning,
4836 ),
4837 // right of context menu
4838 point(
4839 menu.bounds.right() + HOVER_POPOVER_GAP,
4840 y_for_horizontal_positioning,
4841 ),
4842 // top of context menu
4843 point(
4844 menu.bounds.left(),
4845 menu.bounds.top() - overall_height - HOVER_POPOVER_GAP,
4846 ),
4847 // bottom of context menu
4848 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
4849 ];
4850 possible_origins.into_iter().find(|&origin| {
4851 Bounds::new(origin, size(total_width, overall_height))
4852 .is_contained_within(hitbox)
4853 })
4854 });
4855 if let Some(origin) = origin_surrounding_menu {
4856 let mut current_y = origin.y;
4857 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4858 let size = popover.size;
4859 let popover_origin = point(origin.x, current_y);
4860
4861 window.defer_draw(popover.element, popover_origin, 2);
4862 if position != itertools::Position::Last {
4863 let origin = point(popover_origin.x, popover_origin.y + size.height);
4864 draw_occluder(size.width, origin, window, cx);
4865 }
4866
4867 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4868 }
4869 } else {
4870 // fallback to existing above/below cursor logic
4871 // this might overlap menu or overflow in rare case
4872 if can_place_above {
4873 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
4874 } else {
4875 place_popovers_below(
4876 hovered_point,
4877 measured_hover_popovers,
4878 line_height,
4879 window,
4880 cx,
4881 );
4882 }
4883 }
4884 }
4885 }
4886
4887 fn layout_diff_hunk_controls(
4888 &self,
4889 row_range: Range<DisplayRow>,
4890 row_infos: &[RowInfo],
4891 text_hitbox: &Hitbox,
4892 newest_cursor_position: Option<DisplayPoint>,
4893 line_height: Pixels,
4894 right_margin: Pixels,
4895 scroll_pixel_position: gpui::Point<Pixels>,
4896 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
4897 highlighted_rows: &BTreeMap<DisplayRow, LineHighlight>,
4898 editor: Entity<Editor>,
4899 window: &mut Window,
4900 cx: &mut App,
4901 ) -> (Vec<AnyElement>, Vec<(DisplayRow, Bounds<Pixels>)>) {
4902 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
4903 let hovered_diff_hunk_row = editor.read(cx).hovered_diff_hunk_row;
4904
4905 let mut controls = vec![];
4906 let mut control_bounds = vec![];
4907
4908 let active_positions = [
4909 hovered_diff_hunk_row.map(|row| DisplayPoint::new(row, 0)),
4910 newest_cursor_position,
4911 ];
4912
4913 for (hunk, _) in display_hunks {
4914 if let DisplayDiffHunk::Unfolded {
4915 display_row_range,
4916 multi_buffer_range,
4917 status,
4918 is_created_file,
4919 ..
4920 } = &hunk
4921 {
4922 if display_row_range.start < row_range.start
4923 || display_row_range.start >= row_range.end
4924 {
4925 continue;
4926 }
4927 if highlighted_rows
4928 .get(&display_row_range.start)
4929 .and_then(|highlight| highlight.type_id)
4930 .is_some_and(|type_id| {
4931 [
4932 TypeId::of::<ConflictsOuter>(),
4933 TypeId::of::<ConflictsOursMarker>(),
4934 TypeId::of::<ConflictsOurs>(),
4935 TypeId::of::<ConflictsTheirs>(),
4936 TypeId::of::<ConflictsTheirsMarker>(),
4937 ]
4938 .contains(&type_id)
4939 })
4940 {
4941 continue;
4942 }
4943 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4944 if row_infos[row_ix].diff_status.is_none() {
4945 continue;
4946 }
4947 if row_infos[row_ix]
4948 .diff_status
4949 .is_some_and(|status| status.is_added())
4950 && !status.is_added()
4951 {
4952 continue;
4953 }
4954
4955 if active_positions
4956 .iter()
4957 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4958 {
4959 let y = display_row_range.start.as_f32() * line_height
4960 + text_hitbox.bounds.top()
4961 - scroll_pixel_position.y;
4962
4963 let mut element = render_diff_hunk_controls(
4964 display_row_range.start.0,
4965 status,
4966 multi_buffer_range.clone(),
4967 *is_created_file,
4968 line_height,
4969 &editor,
4970 window,
4971 cx,
4972 );
4973 let size =
4974 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
4975
4976 let x = text_hitbox.bounds.right() - right_margin - px(10.) - size.width;
4977
4978 let bounds = Bounds::new(gpui::Point::new(x, y), size);
4979 control_bounds.push((display_row_range.start, bounds));
4980
4981 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
4982 element.prepaint(window, cx)
4983 });
4984 controls.push(element);
4985 }
4986 }
4987 }
4988
4989 (controls, control_bounds)
4990 }
4991
4992 fn layout_signature_help(
4993 &self,
4994 hitbox: &Hitbox,
4995 content_origin: gpui::Point<Pixels>,
4996 scroll_pixel_position: gpui::Point<Pixels>,
4997 newest_selection_head: Option<DisplayPoint>,
4998 start_row: DisplayRow,
4999 line_layouts: &[LineWithInvisibles],
5000 line_height: Pixels,
5001 em_width: Pixels,
5002 context_menu_layout: Option<ContextMenuLayout>,
5003 window: &mut Window,
5004 cx: &mut App,
5005 ) {
5006 if !self.editor.focus_handle(cx).is_focused(window) {
5007 return;
5008 }
5009 let Some(newest_selection_head) = newest_selection_head else {
5010 return;
5011 };
5012
5013 let max_size = size(
5014 (120. * em_width) // Default size
5015 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5016 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5017 (16. * line_height) // Default size
5018 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5019 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5020 );
5021
5022 let maybe_element = self.editor.update(cx, |editor, cx| {
5023 if let Some(popover) = editor.signature_help_state.popover_mut() {
5024 let element = popover.render(max_size, window, cx);
5025 Some(element)
5026 } else {
5027 None
5028 }
5029 });
5030 let Some(mut element) = maybe_element else {
5031 return;
5032 };
5033
5034 let selection_row = newest_selection_head.row();
5035 let Some(cursor_row_layout) = (selection_row >= start_row)
5036 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
5037 .flatten()
5038 else {
5039 return;
5040 };
5041
5042 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
5043 - scroll_pixel_position.x;
5044 let target_y = selection_row.as_f32() * line_height - scroll_pixel_position.y;
5045 let target_point = content_origin + point(target_x, target_y);
5046
5047 let actual_size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
5048
5049 let (popover_bounds_above, popover_bounds_below) = {
5050 let horizontal_offset = (hitbox.top_right().x
5051 - POPOVER_RIGHT_OFFSET
5052 - (target_point.x + actual_size.width))
5053 .min(Pixels::ZERO);
5054 let initial_x = target_point.x + horizontal_offset;
5055 (
5056 Bounds::new(
5057 point(initial_x, target_point.y - actual_size.height),
5058 actual_size,
5059 ),
5060 Bounds::new(
5061 point(initial_x, target_point.y + line_height + HOVER_POPOVER_GAP),
5062 actual_size,
5063 ),
5064 )
5065 };
5066
5067 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5068 context_menu_layout
5069 .as_ref()
5070 .map_or(false, |menu| bounds.intersects(&menu.bounds))
5071 };
5072
5073 let final_origin = if popover_bounds_above.is_contained_within(hitbox)
5074 && !intersects_menu(popover_bounds_above)
5075 {
5076 // try placing above cursor
5077 popover_bounds_above.origin
5078 } else if popover_bounds_below.is_contained_within(hitbox)
5079 && !intersects_menu(popover_bounds_below)
5080 {
5081 // try placing below cursor
5082 popover_bounds_below.origin
5083 } else {
5084 // try surrounding context menu if exists
5085 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5086 let y_for_horizontal_positioning = if menu.y_flipped {
5087 menu.bounds.bottom() - actual_size.height
5088 } else {
5089 menu.bounds.top()
5090 };
5091 let possible_origins = vec![
5092 // left of context menu
5093 point(
5094 menu.bounds.left() - actual_size.width - HOVER_POPOVER_GAP,
5095 y_for_horizontal_positioning,
5096 ),
5097 // right of context menu
5098 point(
5099 menu.bounds.right() + HOVER_POPOVER_GAP,
5100 y_for_horizontal_positioning,
5101 ),
5102 // top of context menu
5103 point(
5104 menu.bounds.left(),
5105 menu.bounds.top() - actual_size.height - HOVER_POPOVER_GAP,
5106 ),
5107 // bottom of context menu
5108 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5109 ];
5110 possible_origins
5111 .into_iter()
5112 .find(|&origin| Bounds::new(origin, actual_size).is_contained_within(hitbox))
5113 });
5114 origin_surrounding_menu.unwrap_or_else(|| {
5115 // fallback to existing above/below cursor logic
5116 // this might overlap menu or overflow in rare case
5117 if popover_bounds_above.is_contained_within(hitbox) {
5118 popover_bounds_above.origin
5119 } else {
5120 popover_bounds_below.origin
5121 }
5122 })
5123 };
5124
5125 window.defer_draw(element, final_origin, 2);
5126 }
5127
5128 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5129 window.paint_layer(layout.hitbox.bounds, |window| {
5130 let scroll_top = layout.position_map.snapshot.scroll_position().y;
5131 let gutter_bg = cx.theme().colors().editor_gutter_background;
5132 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
5133 window.paint_quad(fill(
5134 layout.position_map.text_hitbox.bounds,
5135 self.style.background,
5136 ));
5137
5138 if matches!(
5139 layout.mode,
5140 EditorMode::Full { .. } | EditorMode::Minimap { .. }
5141 ) {
5142 let show_active_line_background = match layout.mode {
5143 EditorMode::Full {
5144 show_active_line_background,
5145 ..
5146 } => show_active_line_background,
5147 EditorMode::Minimap { .. } => true,
5148 _ => false,
5149 };
5150 let mut active_rows = layout.active_rows.iter().peekable();
5151 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
5152 let mut end_row = start_row.0;
5153 while active_rows
5154 .peek()
5155 .map_or(false, |(active_row, has_selection)| {
5156 active_row.0 == end_row + 1
5157 && has_selection.selection == contains_non_empty_selection.selection
5158 })
5159 {
5160 active_rows.next().unwrap();
5161 end_row += 1;
5162 }
5163
5164 if show_active_line_background && !contains_non_empty_selection.selection {
5165 let highlight_h_range =
5166 match layout.position_map.snapshot.current_line_highlight {
5167 CurrentLineHighlight::Gutter => Some(Range {
5168 start: layout.hitbox.left(),
5169 end: layout.gutter_hitbox.right(),
5170 }),
5171 CurrentLineHighlight::Line => Some(Range {
5172 start: layout.position_map.text_hitbox.bounds.left(),
5173 end: layout.position_map.text_hitbox.bounds.right(),
5174 }),
5175 CurrentLineHighlight::All => Some(Range {
5176 start: layout.hitbox.left(),
5177 end: layout.hitbox.right(),
5178 }),
5179 CurrentLineHighlight::None => None,
5180 };
5181 if let Some(range) = highlight_h_range {
5182 let active_line_bg = cx.theme().colors().editor_active_line_background;
5183 let bounds = Bounds {
5184 origin: point(
5185 range.start,
5186 layout.hitbox.origin.y
5187 + (start_row.as_f32() - scroll_top)
5188 * layout.position_map.line_height,
5189 ),
5190 size: size(
5191 range.end - range.start,
5192 layout.position_map.line_height
5193 * (end_row - start_row.0 + 1) as f32,
5194 ),
5195 };
5196 window.paint_quad(fill(bounds, active_line_bg));
5197 }
5198 }
5199 }
5200
5201 let mut paint_highlight = |highlight_row_start: DisplayRow,
5202 highlight_row_end: DisplayRow,
5203 highlight: crate::LineHighlight,
5204 edges| {
5205 let mut origin_x = layout.hitbox.left();
5206 let mut width = layout.hitbox.size.width;
5207 if !highlight.include_gutter {
5208 origin_x += layout.gutter_hitbox.size.width;
5209 width -= layout.gutter_hitbox.size.width;
5210 }
5211
5212 let origin = point(
5213 origin_x,
5214 layout.hitbox.origin.y
5215 + (highlight_row_start.as_f32() - scroll_top)
5216 * layout.position_map.line_height,
5217 );
5218 let size = size(
5219 width,
5220 layout.position_map.line_height
5221 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
5222 );
5223 let mut quad = fill(Bounds { origin, size }, highlight.background);
5224 if let Some(border_color) = highlight.border {
5225 quad.border_color = border_color;
5226 quad.border_widths = edges
5227 }
5228 window.paint_quad(quad);
5229 };
5230
5231 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
5232 None;
5233 for (&new_row, &new_background) in &layout.highlighted_rows {
5234 match &mut current_paint {
5235 &mut Some((current_background, ref mut current_range, mut edges)) => {
5236 let new_range_started = current_background != new_background
5237 || current_range.end.next_row() != new_row;
5238 if new_range_started {
5239 if current_range.end.next_row() == new_row {
5240 edges.bottom = px(0.);
5241 };
5242 paint_highlight(
5243 current_range.start,
5244 current_range.end,
5245 current_background,
5246 edges,
5247 );
5248 let edges = Edges {
5249 top: if current_range.end.next_row() != new_row {
5250 px(1.)
5251 } else {
5252 px(0.)
5253 },
5254 bottom: px(1.),
5255 ..Default::default()
5256 };
5257 current_paint = Some((new_background, new_row..new_row, edges));
5258 continue;
5259 } else {
5260 current_range.end = current_range.end.next_row();
5261 }
5262 }
5263 None => {
5264 let edges = Edges {
5265 top: px(1.),
5266 bottom: px(1.),
5267 ..Default::default()
5268 };
5269 current_paint = Some((new_background, new_row..new_row, edges))
5270 }
5271 };
5272 }
5273 if let Some((color, range, edges)) = current_paint {
5274 paint_highlight(range.start, range.end, color, edges);
5275 }
5276
5277 for (guide_x, active) in layout.wrap_guides.iter() {
5278 let color = if *active {
5279 cx.theme().colors().editor_active_wrap_guide
5280 } else {
5281 cx.theme().colors().editor_wrap_guide
5282 };
5283 window.paint_quad(fill(
5284 Bounds {
5285 origin: point(*guide_x, layout.position_map.text_hitbox.origin.y),
5286 size: size(px(1.), layout.position_map.text_hitbox.size.height),
5287 },
5288 color,
5289 ));
5290 }
5291 }
5292 })
5293 }
5294
5295 fn paint_indent_guides(
5296 &mut self,
5297 layout: &mut EditorLayout,
5298 window: &mut Window,
5299 cx: &mut App,
5300 ) {
5301 let Some(indent_guides) = &layout.indent_guides else {
5302 return;
5303 };
5304
5305 let faded_color = |color: Hsla, alpha: f32| {
5306 let mut faded = color;
5307 faded.a = alpha;
5308 faded
5309 };
5310
5311 for indent_guide in indent_guides {
5312 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
5313 let settings = indent_guide.settings;
5314
5315 // TODO fixed for now, expose them through themes later
5316 const INDENT_AWARE_ALPHA: f32 = 0.2;
5317 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
5318 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
5319 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
5320
5321 let line_color = match (settings.coloring, indent_guide.active) {
5322 (IndentGuideColoring::Disabled, _) => None,
5323 (IndentGuideColoring::Fixed, false) => {
5324 Some(cx.theme().colors().editor_indent_guide)
5325 }
5326 (IndentGuideColoring::Fixed, true) => {
5327 Some(cx.theme().colors().editor_indent_guide_active)
5328 }
5329 (IndentGuideColoring::IndentAware, false) => {
5330 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
5331 }
5332 (IndentGuideColoring::IndentAware, true) => {
5333 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
5334 }
5335 };
5336
5337 let background_color = match (settings.background_coloring, indent_guide.active) {
5338 (IndentGuideBackgroundColoring::Disabled, _) => None,
5339 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
5340 indent_accent_colors,
5341 INDENT_AWARE_BACKGROUND_ALPHA,
5342 )),
5343 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
5344 indent_accent_colors,
5345 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
5346 )),
5347 };
5348
5349 let requested_line_width = if indent_guide.active {
5350 settings.active_line_width
5351 } else {
5352 settings.line_width
5353 }
5354 .clamp(1, 10);
5355 let mut line_indicator_width = 0.;
5356 if let Some(color) = line_color {
5357 window.paint_quad(fill(
5358 Bounds {
5359 origin: indent_guide.origin,
5360 size: size(px(requested_line_width as f32), indent_guide.length),
5361 },
5362 color,
5363 ));
5364 line_indicator_width = requested_line_width as f32;
5365 }
5366
5367 if let Some(color) = background_color {
5368 let width = indent_guide.single_indent_width - px(line_indicator_width);
5369 window.paint_quad(fill(
5370 Bounds {
5371 origin: point(
5372 indent_guide.origin.x + px(line_indicator_width),
5373 indent_guide.origin.y,
5374 ),
5375 size: size(width, indent_guide.length),
5376 },
5377 color,
5378 ));
5379 }
5380 }
5381 }
5382
5383 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5384 let is_singleton = self.editor.read(cx).is_singleton(cx);
5385
5386 let line_height = layout.position_map.line_height;
5387 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
5388
5389 for LineNumberLayout {
5390 shaped_line,
5391 hitbox,
5392 } in layout.line_numbers.values()
5393 {
5394 let Some(hitbox) = hitbox else {
5395 continue;
5396 };
5397
5398 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
5399 let color = cx.theme().colors().editor_hover_line_number;
5400
5401 let line = self.shape_line_number(shaped_line.text.clone(), color, window);
5402 line.paint(hitbox.origin, line_height, window, cx).log_err()
5403 } else {
5404 shaped_line
5405 .paint(hitbox.origin, line_height, window, cx)
5406 .log_err()
5407 }) else {
5408 continue;
5409 };
5410
5411 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
5412 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
5413 if is_singleton {
5414 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
5415 } else {
5416 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
5417 }
5418 }
5419 }
5420
5421 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5422 if layout.display_hunks.is_empty() {
5423 return;
5424 }
5425
5426 let line_height = layout.position_map.line_height;
5427 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5428 for (hunk, hitbox) in &layout.display_hunks {
5429 let hunk_to_paint = match hunk {
5430 DisplayDiffHunk::Folded { .. } => {
5431 let hunk_bounds = Self::diff_hunk_bounds(
5432 &layout.position_map.snapshot,
5433 line_height,
5434 layout.gutter_hitbox.bounds,
5435 &hunk,
5436 );
5437 Some((
5438 hunk_bounds,
5439 cx.theme().colors().version_control_modified,
5440 Corners::all(px(0.)),
5441 DiffHunkStatus::modified_none(),
5442 ))
5443 }
5444 DisplayDiffHunk::Unfolded {
5445 status,
5446 display_row_range,
5447 ..
5448 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
5449 DiffHunkStatusKind::Added => (
5450 hunk_hitbox.bounds,
5451 cx.theme().colors().version_control_added,
5452 Corners::all(px(0.)),
5453 *status,
5454 ),
5455 DiffHunkStatusKind::Modified => (
5456 hunk_hitbox.bounds,
5457 cx.theme().colors().version_control_modified,
5458 Corners::all(px(0.)),
5459 *status,
5460 ),
5461 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
5462 hunk_hitbox.bounds,
5463 cx.theme().colors().version_control_deleted,
5464 Corners::all(px(0.)),
5465 *status,
5466 ),
5467 DiffHunkStatusKind::Deleted => (
5468 Bounds::new(
5469 point(
5470 hunk_hitbox.origin.x - hunk_hitbox.size.width,
5471 hunk_hitbox.origin.y,
5472 ),
5473 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
5474 ),
5475 cx.theme().colors().version_control_deleted,
5476 Corners::all(1. * line_height),
5477 *status,
5478 ),
5479 }),
5480 };
5481
5482 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
5483 // Flatten the background color with the editor color to prevent
5484 // elements below transparent hunks from showing through
5485 let flattened_background_color = cx
5486 .theme()
5487 .colors()
5488 .editor_background
5489 .blend(background_color);
5490
5491 if !Self::diff_hunk_hollow(status, cx) {
5492 window.paint_quad(quad(
5493 hunk_bounds,
5494 corner_radii,
5495 flattened_background_color,
5496 Edges::default(),
5497 transparent_black(),
5498 BorderStyle::default(),
5499 ));
5500 } else {
5501 let flattened_unstaged_background_color = cx
5502 .theme()
5503 .colors()
5504 .editor_background
5505 .blend(background_color.opacity(0.3));
5506
5507 window.paint_quad(quad(
5508 hunk_bounds,
5509 corner_radii,
5510 flattened_unstaged_background_color,
5511 Edges::all(Pixels(1.0)),
5512 flattened_background_color,
5513 BorderStyle::Solid,
5514 ));
5515 }
5516 }
5517 }
5518 });
5519 }
5520
5521 fn gutter_strip_width(line_height: Pixels) -> Pixels {
5522 (0.275 * line_height).floor()
5523 }
5524
5525 fn diff_hunk_bounds(
5526 snapshot: &EditorSnapshot,
5527 line_height: Pixels,
5528 gutter_bounds: Bounds<Pixels>,
5529 hunk: &DisplayDiffHunk,
5530 ) -> Bounds<Pixels> {
5531 let scroll_position = snapshot.scroll_position();
5532 let scroll_top = scroll_position.y * line_height;
5533 let gutter_strip_width = Self::gutter_strip_width(line_height);
5534
5535 match hunk {
5536 DisplayDiffHunk::Folded { display_row, .. } => {
5537 let start_y = display_row.as_f32() * line_height - scroll_top;
5538 let end_y = start_y + line_height;
5539 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5540 let highlight_size = size(gutter_strip_width, end_y - start_y);
5541 Bounds::new(highlight_origin, highlight_size)
5542 }
5543 DisplayDiffHunk::Unfolded {
5544 display_row_range,
5545 status,
5546 ..
5547 } => {
5548 if status.is_deleted() && display_row_range.is_empty() {
5549 let row = display_row_range.start;
5550
5551 let offset = line_height / 2.;
5552 let start_y = row.as_f32() * line_height - offset - scroll_top;
5553 let end_y = start_y + line_height;
5554
5555 let width = (0.35 * line_height).floor();
5556 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5557 let highlight_size = size(width, end_y - start_y);
5558 Bounds::new(highlight_origin, highlight_size)
5559 } else {
5560 let start_row = display_row_range.start;
5561 let end_row = display_row_range.end;
5562 // If we're in a multibuffer, row range span might include an
5563 // excerpt header, so if we were to draw the marker straight away,
5564 // the hunk might include the rows of that header.
5565 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
5566 // Instead, we simply check whether the range we're dealing with includes
5567 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
5568 let end_row_in_current_excerpt = snapshot
5569 .blocks_in_range(start_row..end_row)
5570 .find_map(|(start_row, block)| {
5571 if matches!(block, Block::ExcerptBoundary { .. }) {
5572 Some(start_row)
5573 } else {
5574 None
5575 }
5576 })
5577 .unwrap_or(end_row);
5578
5579 let start_y = start_row.as_f32() * line_height - scroll_top;
5580 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
5581
5582 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5583 let highlight_size = size(gutter_strip_width, end_y - start_y);
5584 Bounds::new(highlight_origin, highlight_size)
5585 }
5586 }
5587 }
5588 }
5589
5590 fn paint_gutter_indicators(
5591 &self,
5592 layout: &mut EditorLayout,
5593 window: &mut Window,
5594 cx: &mut App,
5595 ) {
5596 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5597 window.with_element_namespace("crease_toggles", |window| {
5598 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
5599 crease_toggle.paint(window, cx);
5600 }
5601 });
5602
5603 window.with_element_namespace("expand_toggles", |window| {
5604 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
5605 expand_toggle.paint(window, cx);
5606 }
5607 });
5608
5609 for breakpoint in layout.breakpoints.iter_mut() {
5610 breakpoint.paint(window, cx);
5611 }
5612
5613 for test_indicator in layout.test_indicators.iter_mut() {
5614 test_indicator.paint(window, cx);
5615 }
5616 });
5617 }
5618
5619 fn paint_gutter_highlights(
5620 &self,
5621 layout: &mut EditorLayout,
5622 window: &mut Window,
5623 cx: &mut App,
5624 ) {
5625 for (_, hunk_hitbox) in &layout.display_hunks {
5626 if let Some(hunk_hitbox) = hunk_hitbox {
5627 if !self
5628 .editor
5629 .read(cx)
5630 .buffer()
5631 .read(cx)
5632 .all_diff_hunks_expanded()
5633 {
5634 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
5635 }
5636 }
5637 }
5638
5639 let show_git_gutter = layout
5640 .position_map
5641 .snapshot
5642 .show_git_diff_gutter
5643 .unwrap_or_else(|| {
5644 matches!(
5645 ProjectSettings::get_global(cx).git.git_gutter,
5646 Some(GitGutterSetting::TrackedFiles)
5647 )
5648 });
5649 if show_git_gutter {
5650 Self::paint_gutter_diff_hunks(layout, window, cx)
5651 }
5652
5653 let highlight_width = 0.275 * layout.position_map.line_height;
5654 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
5655 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5656 for (range, color) in &layout.highlighted_gutter_ranges {
5657 let start_row = if range.start.row() < layout.visible_display_row_range.start {
5658 layout.visible_display_row_range.start - DisplayRow(1)
5659 } else {
5660 range.start.row()
5661 };
5662 let end_row = if range.end.row() > layout.visible_display_row_range.end {
5663 layout.visible_display_row_range.end + DisplayRow(1)
5664 } else {
5665 range.end.row()
5666 };
5667
5668 let start_y = layout.gutter_hitbox.top()
5669 + start_row.0 as f32 * layout.position_map.line_height
5670 - layout.position_map.scroll_pixel_position.y;
5671 let end_y = layout.gutter_hitbox.top()
5672 + (end_row.0 + 1) as f32 * layout.position_map.line_height
5673 - layout.position_map.scroll_pixel_position.y;
5674 let bounds = Bounds::from_corners(
5675 point(layout.gutter_hitbox.left(), start_y),
5676 point(layout.gutter_hitbox.left() + highlight_width, end_y),
5677 );
5678 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
5679 }
5680 });
5681 }
5682
5683 fn paint_blamed_display_rows(
5684 &self,
5685 layout: &mut EditorLayout,
5686 window: &mut Window,
5687 cx: &mut App,
5688 ) {
5689 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
5690 return;
5691 };
5692
5693 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5694 for mut blame_element in blamed_display_rows.into_iter() {
5695 blame_element.paint(window, cx);
5696 }
5697 })
5698 }
5699
5700 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5701 window.with_content_mask(
5702 Some(ContentMask {
5703 bounds: layout.position_map.text_hitbox.bounds,
5704 }),
5705 |window| {
5706 let editor = self.editor.read(cx);
5707 if editor.mouse_cursor_hidden {
5708 window.set_window_cursor_style(CursorStyle::None);
5709 } else if matches!(
5710 editor.selection_drag_state,
5711 SelectionDragState::Dragging { .. }
5712 ) {
5713 window
5714 .set_cursor_style(CursorStyle::DragCopy, &layout.position_map.text_hitbox);
5715 } else if editor
5716 .hovered_link_state
5717 .as_ref()
5718 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
5719 {
5720 window.set_cursor_style(
5721 CursorStyle::PointingHand,
5722 &layout.position_map.text_hitbox,
5723 );
5724 } else {
5725 window.set_cursor_style(CursorStyle::IBeam, &layout.position_map.text_hitbox);
5726 };
5727
5728 self.paint_lines_background(layout, window, cx);
5729 let invisible_display_ranges = self.paint_highlights(layout, window);
5730 self.paint_document_colors(layout, window);
5731 self.paint_lines(&invisible_display_ranges, layout, window, cx);
5732 self.paint_redactions(layout, window);
5733 self.paint_cursors(layout, window, cx);
5734 self.paint_inline_diagnostics(layout, window, cx);
5735 self.paint_inline_blame(layout, window, cx);
5736 self.paint_inline_code_actions(layout, window, cx);
5737 self.paint_diff_hunk_controls(layout, window, cx);
5738 window.with_element_namespace("crease_trailers", |window| {
5739 for trailer in layout.crease_trailers.iter_mut().flatten() {
5740 trailer.element.paint(window, cx);
5741 }
5742 });
5743 },
5744 )
5745 }
5746
5747 fn paint_highlights(
5748 &mut self,
5749 layout: &mut EditorLayout,
5750 window: &mut Window,
5751 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
5752 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5753 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
5754 let line_end_overshoot = 0.15 * layout.position_map.line_height;
5755 for (range, color) in &layout.highlighted_ranges {
5756 self.paint_highlighted_range(
5757 range.clone(),
5758 true,
5759 *color,
5760 Pixels::ZERO,
5761 line_end_overshoot,
5762 layout,
5763 window,
5764 );
5765 }
5766
5767 let corner_radius = 0.15 * layout.position_map.line_height;
5768
5769 for (player_color, selections) in &layout.selections {
5770 for selection in selections.iter() {
5771 self.paint_highlighted_range(
5772 selection.range.clone(),
5773 true,
5774 player_color.selection,
5775 corner_radius,
5776 corner_radius * 2.,
5777 layout,
5778 window,
5779 );
5780
5781 if selection.is_local && !selection.range.is_empty() {
5782 invisible_display_ranges.push(selection.range.clone());
5783 }
5784 }
5785 }
5786 invisible_display_ranges
5787 })
5788 }
5789
5790 fn paint_lines(
5791 &mut self,
5792 invisible_display_ranges: &[Range<DisplayPoint>],
5793 layout: &mut EditorLayout,
5794 window: &mut Window,
5795 cx: &mut App,
5796 ) {
5797 let whitespace_setting = self
5798 .editor
5799 .read(cx)
5800 .buffer
5801 .read(cx)
5802 .language_settings(cx)
5803 .show_whitespaces;
5804
5805 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
5806 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
5807 line_with_invisibles.draw(
5808 layout,
5809 row,
5810 layout.content_origin,
5811 whitespace_setting,
5812 invisible_display_ranges,
5813 window,
5814 cx,
5815 )
5816 }
5817
5818 for line_element in &mut layout.line_elements {
5819 line_element.paint(window, cx);
5820 }
5821 }
5822
5823 fn paint_lines_background(
5824 &mut self,
5825 layout: &mut EditorLayout,
5826 window: &mut Window,
5827 cx: &mut App,
5828 ) {
5829 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
5830 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
5831 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
5832 }
5833 }
5834
5835 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
5836 if layout.redacted_ranges.is_empty() {
5837 return;
5838 }
5839
5840 let line_end_overshoot = layout.line_end_overshoot();
5841
5842 // A softer than perfect black
5843 let redaction_color = gpui::rgb(0x0e1111);
5844
5845 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5846 for range in layout.redacted_ranges.iter() {
5847 self.paint_highlighted_range(
5848 range.clone(),
5849 true,
5850 redaction_color.into(),
5851 Pixels::ZERO,
5852 line_end_overshoot,
5853 layout,
5854 window,
5855 );
5856 }
5857 });
5858 }
5859
5860 fn paint_document_colors(&self, layout: &mut EditorLayout, window: &mut Window) {
5861 let Some((colors_render_mode, image_colors)) = &layout.document_colors else {
5862 return;
5863 };
5864 if image_colors.is_empty()
5865 || colors_render_mode == &DocumentColorsRenderMode::None
5866 || colors_render_mode == &DocumentColorsRenderMode::Inlay
5867 {
5868 return;
5869 }
5870
5871 let line_end_overshoot = layout.line_end_overshoot();
5872
5873 for (range, color) in image_colors {
5874 match colors_render_mode {
5875 DocumentColorsRenderMode::Inlay | DocumentColorsRenderMode::None => return,
5876 DocumentColorsRenderMode::Background => {
5877 self.paint_highlighted_range(
5878 range.clone(),
5879 true,
5880 *color,
5881 Pixels::ZERO,
5882 line_end_overshoot,
5883 layout,
5884 window,
5885 );
5886 }
5887 DocumentColorsRenderMode::Border => {
5888 self.paint_highlighted_range(
5889 range.clone(),
5890 false,
5891 *color,
5892 Pixels::ZERO,
5893 line_end_overshoot,
5894 layout,
5895 window,
5896 );
5897 }
5898 }
5899 }
5900 }
5901
5902 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5903 for cursor in &mut layout.visible_cursors {
5904 cursor.paint(layout.content_origin, window, cx);
5905 }
5906 }
5907
5908 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5909 let Some(scrollbars_layout) = layout.scrollbars_layout.take() else {
5910 return;
5911 };
5912 let any_scrollbar_dragged = self.editor.read(cx).scroll_manager.any_scrollbar_dragged();
5913
5914 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
5915 let hitbox = &scrollbar_layout.hitbox;
5916 if scrollbars_layout.visible {
5917 let scrollbar_edges = match axis {
5918 ScrollbarAxis::Horizontal => Edges {
5919 top: Pixels::ZERO,
5920 right: Pixels::ZERO,
5921 bottom: Pixels::ZERO,
5922 left: Pixels::ZERO,
5923 },
5924 ScrollbarAxis::Vertical => Edges {
5925 top: Pixels::ZERO,
5926 right: Pixels::ZERO,
5927 bottom: Pixels::ZERO,
5928 left: ScrollbarLayout::BORDER_WIDTH,
5929 },
5930 };
5931
5932 window.paint_layer(hitbox.bounds, |window| {
5933 window.paint_quad(quad(
5934 hitbox.bounds,
5935 Corners::default(),
5936 cx.theme().colors().scrollbar_track_background,
5937 scrollbar_edges,
5938 cx.theme().colors().scrollbar_track_border,
5939 BorderStyle::Solid,
5940 ));
5941
5942 if axis == ScrollbarAxis::Vertical {
5943 let fast_markers =
5944 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
5945 // Refresh slow scrollbar markers in the background. Below, we
5946 // paint whatever markers have already been computed.
5947 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
5948
5949 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
5950 for marker in markers.iter().chain(&fast_markers) {
5951 let mut marker = marker.clone();
5952 marker.bounds.origin += hitbox.origin;
5953 window.paint_quad(marker);
5954 }
5955 }
5956
5957 if let Some(thumb_bounds) = scrollbar_layout.thumb_bounds {
5958 let scrollbar_thumb_color = match scrollbar_layout.thumb_state {
5959 ScrollbarThumbState::Dragging => {
5960 cx.theme().colors().scrollbar_thumb_active_background
5961 }
5962 ScrollbarThumbState::Hovered => {
5963 cx.theme().colors().scrollbar_thumb_hover_background
5964 }
5965 ScrollbarThumbState::Idle => {
5966 cx.theme().colors().scrollbar_thumb_background
5967 }
5968 };
5969 window.paint_quad(quad(
5970 thumb_bounds,
5971 Corners::default(),
5972 scrollbar_thumb_color,
5973 scrollbar_edges,
5974 cx.theme().colors().scrollbar_thumb_border,
5975 BorderStyle::Solid,
5976 ));
5977
5978 if any_scrollbar_dragged {
5979 window.set_window_cursor_style(CursorStyle::Arrow);
5980 } else {
5981 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
5982 }
5983 }
5984 })
5985 }
5986 }
5987
5988 window.on_mouse_event({
5989 let editor = self.editor.clone();
5990 let scrollbars_layout = scrollbars_layout.clone();
5991
5992 let mut mouse_position = window.mouse_position();
5993 move |event: &MouseMoveEvent, phase, window, cx| {
5994 if phase == DispatchPhase::Capture {
5995 return;
5996 }
5997
5998 editor.update(cx, |editor, cx| {
5999 if let Some((scrollbar_layout, axis)) = event
6000 .pressed_button
6001 .filter(|button| *button == MouseButton::Left)
6002 .and(editor.scroll_manager.dragging_scrollbar_axis())
6003 .and_then(|axis| {
6004 scrollbars_layout
6005 .iter_scrollbars()
6006 .find(|(_, a)| *a == axis)
6007 })
6008 {
6009 let ScrollbarLayout {
6010 hitbox,
6011 text_unit_size,
6012 ..
6013 } = scrollbar_layout;
6014
6015 let old_position = mouse_position.along(axis);
6016 let new_position = event.position.along(axis);
6017 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
6018 .contains(&old_position)
6019 {
6020 let position = editor.scroll_position(cx).apply_along(axis, |p| {
6021 (p + (new_position - old_position) / *text_unit_size).max(0.)
6022 });
6023 editor.set_scroll_position(position, window, cx);
6024 }
6025
6026 editor.scroll_manager.show_scrollbars(window, cx);
6027 cx.stop_propagation();
6028 } else if let Some((layout, axis)) = scrollbars_layout
6029 .get_hovered_axis(window)
6030 .filter(|_| !event.dragging())
6031 {
6032 if layout.thumb_hovered(&event.position) {
6033 editor
6034 .scroll_manager
6035 .set_hovered_scroll_thumb_axis(axis, cx);
6036 } else {
6037 editor.scroll_manager.reset_scrollbar_state(cx);
6038 }
6039
6040 editor.scroll_manager.show_scrollbars(window, cx);
6041 } else {
6042 editor.scroll_manager.reset_scrollbar_state(cx);
6043 }
6044
6045 mouse_position = event.position;
6046 })
6047 }
6048 });
6049
6050 if any_scrollbar_dragged {
6051 window.on_mouse_event({
6052 let editor = self.editor.clone();
6053 move |_: &MouseUpEvent, phase, window, cx| {
6054 if phase == DispatchPhase::Capture {
6055 return;
6056 }
6057
6058 editor.update(cx, |editor, cx| {
6059 if let Some((_, axis)) = scrollbars_layout.get_hovered_axis(window) {
6060 editor
6061 .scroll_manager
6062 .set_hovered_scroll_thumb_axis(axis, cx);
6063 } else {
6064 editor.scroll_manager.reset_scrollbar_state(cx);
6065 }
6066 cx.stop_propagation();
6067 });
6068 }
6069 });
6070 } else {
6071 window.on_mouse_event({
6072 let editor = self.editor.clone();
6073
6074 move |event: &MouseDownEvent, phase, window, cx| {
6075 if phase == DispatchPhase::Capture {
6076 return;
6077 }
6078 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
6079 else {
6080 return;
6081 };
6082
6083 let ScrollbarLayout {
6084 hitbox,
6085 visible_range,
6086 text_unit_size,
6087 thumb_bounds,
6088 ..
6089 } = scrollbar_layout;
6090
6091 let Some(thumb_bounds) = thumb_bounds else {
6092 return;
6093 };
6094
6095 editor.update(cx, |editor, cx| {
6096 editor
6097 .scroll_manager
6098 .set_dragged_scroll_thumb_axis(axis, cx);
6099
6100 let event_position = event.position.along(axis);
6101
6102 if event_position < thumb_bounds.origin.along(axis)
6103 || thumb_bounds.bottom_right().along(axis) < event_position
6104 {
6105 let center_position = ((event_position - hitbox.origin.along(axis))
6106 / *text_unit_size)
6107 .round() as u32;
6108 let start_position = center_position.saturating_sub(
6109 (visible_range.end - visible_range.start) as u32 / 2,
6110 );
6111
6112 let position = editor
6113 .scroll_position(cx)
6114 .apply_along(axis, |_| start_position as f32);
6115
6116 editor.set_scroll_position(position, window, cx);
6117 } else {
6118 editor.scroll_manager.show_scrollbars(window, cx);
6119 }
6120
6121 cx.stop_propagation();
6122 });
6123 }
6124 });
6125 }
6126 }
6127
6128 fn collect_fast_scrollbar_markers(
6129 &self,
6130 layout: &EditorLayout,
6131 scrollbar_layout: &ScrollbarLayout,
6132 cx: &mut App,
6133 ) -> Vec<PaintQuad> {
6134 const LIMIT: usize = 100;
6135 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
6136 return vec![];
6137 }
6138 let cursor_ranges = layout
6139 .cursors
6140 .iter()
6141 .map(|(point, color)| ColoredRange {
6142 start: point.row(),
6143 end: point.row(),
6144 color: *color,
6145 })
6146 .collect_vec();
6147 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
6148 }
6149
6150 fn refresh_slow_scrollbar_markers(
6151 &self,
6152 layout: &EditorLayout,
6153 scrollbar_layout: &ScrollbarLayout,
6154 window: &mut Window,
6155 cx: &mut App,
6156 ) {
6157 self.editor.update(cx, |editor, cx| {
6158 if !editor.is_singleton(cx)
6159 || !editor
6160 .scrollbar_marker_state
6161 .should_refresh(scrollbar_layout.hitbox.size)
6162 {
6163 return;
6164 }
6165
6166 let scrollbar_layout = scrollbar_layout.clone();
6167 let background_highlights = editor.background_highlights.clone();
6168 let snapshot = layout.position_map.snapshot.clone();
6169 let theme = cx.theme().clone();
6170 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
6171
6172 editor.scrollbar_marker_state.dirty = false;
6173 editor.scrollbar_marker_state.pending_refresh =
6174 Some(cx.spawn_in(window, async move |editor, cx| {
6175 let scrollbar_size = scrollbar_layout.hitbox.size;
6176 let scrollbar_markers = cx
6177 .background_spawn(async move {
6178 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
6179 let mut marker_quads = Vec::new();
6180 if scrollbar_settings.git_diff {
6181 let marker_row_ranges =
6182 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
6183 let start_display_row =
6184 MultiBufferPoint::new(hunk.row_range.start.0, 0)
6185 .to_display_point(&snapshot.display_snapshot)
6186 .row();
6187 let mut end_display_row =
6188 MultiBufferPoint::new(hunk.row_range.end.0, 0)
6189 .to_display_point(&snapshot.display_snapshot)
6190 .row();
6191 if end_display_row != start_display_row {
6192 end_display_row.0 -= 1;
6193 }
6194 let color = match &hunk.status().kind {
6195 DiffHunkStatusKind::Added => {
6196 theme.colors().version_control_added
6197 }
6198 DiffHunkStatusKind::Modified => {
6199 theme.colors().version_control_modified
6200 }
6201 DiffHunkStatusKind::Deleted => {
6202 theme.colors().version_control_deleted
6203 }
6204 };
6205 ColoredRange {
6206 start: start_display_row,
6207 end: end_display_row,
6208 color,
6209 }
6210 });
6211
6212 marker_quads.extend(
6213 scrollbar_layout
6214 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
6215 );
6216 }
6217
6218 for (background_highlight_id, (_, background_ranges)) in
6219 background_highlights.iter()
6220 {
6221 let is_search_highlights = *background_highlight_id
6222 == HighlightKey::Type(TypeId::of::<BufferSearchHighlights>());
6223 let is_text_highlights = *background_highlight_id
6224 == HighlightKey::Type(TypeId::of::<SelectedTextHighlight>());
6225 let is_symbol_occurrences = *background_highlight_id
6226 == HighlightKey::Type(TypeId::of::<DocumentHighlightRead>())
6227 || *background_highlight_id
6228 == HighlightKey::Type(
6229 TypeId::of::<DocumentHighlightWrite>(),
6230 );
6231 if (is_search_highlights && scrollbar_settings.search_results)
6232 || (is_text_highlights && scrollbar_settings.selected_text)
6233 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
6234 {
6235 let mut color = theme.status().info;
6236 if is_symbol_occurrences {
6237 color.fade_out(0.5);
6238 }
6239 let marker_row_ranges = background_ranges.iter().map(|range| {
6240 let display_start = range
6241 .start
6242 .to_display_point(&snapshot.display_snapshot);
6243 let display_end =
6244 range.end.to_display_point(&snapshot.display_snapshot);
6245 ColoredRange {
6246 start: display_start.row(),
6247 end: display_end.row(),
6248 color,
6249 }
6250 });
6251 marker_quads.extend(
6252 scrollbar_layout
6253 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
6254 );
6255 }
6256 }
6257
6258 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
6259 let diagnostics = snapshot
6260 .buffer_snapshot
6261 .diagnostics_in_range::<Point>(Point::zero()..max_point)
6262 // Don't show diagnostics the user doesn't care about
6263 .filter(|diagnostic| {
6264 match (
6265 scrollbar_settings.diagnostics,
6266 diagnostic.diagnostic.severity,
6267 ) {
6268 (ScrollbarDiagnostics::All, _) => true,
6269 (
6270 ScrollbarDiagnostics::Error,
6271 lsp::DiagnosticSeverity::ERROR,
6272 ) => true,
6273 (
6274 ScrollbarDiagnostics::Warning,
6275 lsp::DiagnosticSeverity::ERROR
6276 | lsp::DiagnosticSeverity::WARNING,
6277 ) => true,
6278 (
6279 ScrollbarDiagnostics::Information,
6280 lsp::DiagnosticSeverity::ERROR
6281 | lsp::DiagnosticSeverity::WARNING
6282 | lsp::DiagnosticSeverity::INFORMATION,
6283 ) => true,
6284 (_, _) => false,
6285 }
6286 })
6287 // We want to sort by severity, in order to paint the most severe diagnostics last.
6288 .sorted_by_key(|diagnostic| {
6289 std::cmp::Reverse(diagnostic.diagnostic.severity)
6290 });
6291
6292 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
6293 let start_display = diagnostic
6294 .range
6295 .start
6296 .to_display_point(&snapshot.display_snapshot);
6297 let end_display = diagnostic
6298 .range
6299 .end
6300 .to_display_point(&snapshot.display_snapshot);
6301 let color = match diagnostic.diagnostic.severity {
6302 lsp::DiagnosticSeverity::ERROR => theme.status().error,
6303 lsp::DiagnosticSeverity::WARNING => theme.status().warning,
6304 lsp::DiagnosticSeverity::INFORMATION => theme.status().info,
6305 _ => theme.status().hint,
6306 };
6307 ColoredRange {
6308 start: start_display.row(),
6309 end: end_display.row(),
6310 color,
6311 }
6312 });
6313 marker_quads.extend(
6314 scrollbar_layout
6315 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
6316 );
6317 }
6318
6319 Arc::from(marker_quads)
6320 })
6321 .await;
6322
6323 editor.update(cx, |editor, cx| {
6324 editor.scrollbar_marker_state.markers = scrollbar_markers;
6325 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
6326 editor.scrollbar_marker_state.pending_refresh = None;
6327 cx.notify();
6328 })?;
6329
6330 Ok(())
6331 }));
6332 });
6333 }
6334
6335 fn paint_highlighted_range(
6336 &self,
6337 range: Range<DisplayPoint>,
6338 fill: bool,
6339 color: Hsla,
6340 corner_radius: Pixels,
6341 line_end_overshoot: Pixels,
6342 layout: &EditorLayout,
6343 window: &mut Window,
6344 ) {
6345 let start_row = layout.visible_display_row_range.start;
6346 let end_row = layout.visible_display_row_range.end;
6347 if range.start != range.end {
6348 let row_range = if range.end.column() == 0 {
6349 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
6350 } else {
6351 cmp::max(range.start.row(), start_row)
6352 ..cmp::min(range.end.row().next_row(), end_row)
6353 };
6354
6355 let highlighted_range = HighlightedRange {
6356 color,
6357 line_height: layout.position_map.line_height,
6358 corner_radius,
6359 start_y: layout.content_origin.y
6360 + row_range.start.as_f32() * layout.position_map.line_height
6361 - layout.position_map.scroll_pixel_position.y,
6362 lines: row_range
6363 .iter_rows()
6364 .map(|row| {
6365 let line_layout =
6366 &layout.position_map.line_layouts[row.minus(start_row) as usize];
6367 HighlightedRangeLine {
6368 start_x: if row == range.start.row() {
6369 layout.content_origin.x
6370 + line_layout.x_for_index(range.start.column() as usize)
6371 - layout.position_map.scroll_pixel_position.x
6372 } else {
6373 layout.content_origin.x
6374 - layout.position_map.scroll_pixel_position.x
6375 },
6376 end_x: if row == range.end.row() {
6377 layout.content_origin.x
6378 + line_layout.x_for_index(range.end.column() as usize)
6379 - layout.position_map.scroll_pixel_position.x
6380 } else {
6381 layout.content_origin.x + line_layout.width + line_end_overshoot
6382 - layout.position_map.scroll_pixel_position.x
6383 },
6384 }
6385 })
6386 .collect(),
6387 };
6388
6389 highlighted_range.paint(fill, layout.position_map.text_hitbox.bounds, window);
6390 }
6391 }
6392
6393 fn paint_inline_diagnostics(
6394 &mut self,
6395 layout: &mut EditorLayout,
6396 window: &mut Window,
6397 cx: &mut App,
6398 ) {
6399 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
6400 inline_diagnostic.1.paint(window, cx);
6401 }
6402 }
6403
6404 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6405 if let Some(mut blame_layout) = layout.inline_blame_layout.take() {
6406 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6407 blame_layout.element.paint(window, cx);
6408 })
6409 }
6410 }
6411
6412 fn paint_inline_code_actions(
6413 &mut self,
6414 layout: &mut EditorLayout,
6415 window: &mut Window,
6416 cx: &mut App,
6417 ) {
6418 if let Some(mut inline_code_actions) = layout.inline_code_actions.take() {
6419 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6420 inline_code_actions.paint(window, cx);
6421 })
6422 }
6423 }
6424
6425 fn paint_diff_hunk_controls(
6426 &mut self,
6427 layout: &mut EditorLayout,
6428 window: &mut Window,
6429 cx: &mut App,
6430 ) {
6431 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
6432 diff_hunk_control.paint(window, cx);
6433 }
6434 }
6435
6436 fn paint_minimap(&self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6437 if let Some(mut layout) = layout.minimap.take() {
6438 let minimap_hitbox = layout.thumb_layout.hitbox.clone();
6439 let dragging_minimap = self.editor.read(cx).scroll_manager.is_dragging_minimap();
6440
6441 window.paint_layer(layout.thumb_layout.hitbox.bounds, |window| {
6442 window.with_element_namespace("minimap", |window| {
6443 layout.minimap.paint(window, cx);
6444 if let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds {
6445 let minimap_thumb_color = match layout.thumb_layout.thumb_state {
6446 ScrollbarThumbState::Idle => {
6447 cx.theme().colors().minimap_thumb_background
6448 }
6449 ScrollbarThumbState::Hovered => {
6450 cx.theme().colors().minimap_thumb_hover_background
6451 }
6452 ScrollbarThumbState::Dragging => {
6453 cx.theme().colors().minimap_thumb_active_background
6454 }
6455 };
6456 let minimap_thumb_border = match layout.thumb_border_style {
6457 MinimapThumbBorder::Full => Edges::all(ScrollbarLayout::BORDER_WIDTH),
6458 MinimapThumbBorder::LeftOnly => Edges {
6459 left: ScrollbarLayout::BORDER_WIDTH,
6460 ..Default::default()
6461 },
6462 MinimapThumbBorder::LeftOpen => Edges {
6463 right: ScrollbarLayout::BORDER_WIDTH,
6464 top: ScrollbarLayout::BORDER_WIDTH,
6465 bottom: ScrollbarLayout::BORDER_WIDTH,
6466 ..Default::default()
6467 },
6468 MinimapThumbBorder::RightOpen => Edges {
6469 left: ScrollbarLayout::BORDER_WIDTH,
6470 top: ScrollbarLayout::BORDER_WIDTH,
6471 bottom: ScrollbarLayout::BORDER_WIDTH,
6472 ..Default::default()
6473 },
6474 MinimapThumbBorder::None => Default::default(),
6475 };
6476
6477 window.paint_layer(minimap_hitbox.bounds, |window| {
6478 window.paint_quad(quad(
6479 thumb_bounds,
6480 Corners::default(),
6481 minimap_thumb_color,
6482 minimap_thumb_border,
6483 cx.theme().colors().minimap_thumb_border,
6484 BorderStyle::Solid,
6485 ));
6486 });
6487 }
6488 });
6489 });
6490
6491 if dragging_minimap {
6492 window.set_window_cursor_style(CursorStyle::Arrow);
6493 } else {
6494 window.set_cursor_style(CursorStyle::Arrow, &minimap_hitbox);
6495 }
6496
6497 let minimap_axis = ScrollbarAxis::Vertical;
6498 let pixels_per_line = (minimap_hitbox.size.height / layout.max_scroll_top)
6499 .min(layout.minimap_line_height);
6500
6501 let mut mouse_position = window.mouse_position();
6502
6503 window.on_mouse_event({
6504 let editor = self.editor.clone();
6505
6506 let minimap_hitbox = minimap_hitbox.clone();
6507
6508 move |event: &MouseMoveEvent, phase, window, cx| {
6509 if phase == DispatchPhase::Capture {
6510 return;
6511 }
6512
6513 editor.update(cx, |editor, cx| {
6514 if event.pressed_button == Some(MouseButton::Left)
6515 && editor.scroll_manager.is_dragging_minimap()
6516 {
6517 let old_position = mouse_position.along(minimap_axis);
6518 let new_position = event.position.along(minimap_axis);
6519 if (minimap_hitbox.origin.along(minimap_axis)
6520 ..minimap_hitbox.bottom_right().along(minimap_axis))
6521 .contains(&old_position)
6522 {
6523 let position =
6524 editor.scroll_position(cx).apply_along(minimap_axis, |p| {
6525 (p + (new_position - old_position) / pixels_per_line)
6526 .max(0.)
6527 });
6528 editor.set_scroll_position(position, window, cx);
6529 }
6530 cx.stop_propagation();
6531 } else {
6532 if minimap_hitbox.is_hovered(window) {
6533 editor.scroll_manager.set_is_hovering_minimap_thumb(
6534 !event.dragging()
6535 && layout
6536 .thumb_layout
6537 .thumb_bounds
6538 .is_some_and(|bounds| bounds.contains(&event.position)),
6539 cx,
6540 );
6541
6542 // Stop hover events from propagating to the
6543 // underlying editor if the minimap hitbox is hovered
6544 if !event.dragging() {
6545 cx.stop_propagation();
6546 }
6547 } else {
6548 editor.scroll_manager.hide_minimap_thumb(cx);
6549 }
6550 }
6551 mouse_position = event.position;
6552 });
6553 }
6554 });
6555
6556 if dragging_minimap {
6557 window.on_mouse_event({
6558 let editor = self.editor.clone();
6559 move |event: &MouseUpEvent, phase, window, cx| {
6560 if phase == DispatchPhase::Capture {
6561 return;
6562 }
6563
6564 editor.update(cx, |editor, cx| {
6565 if minimap_hitbox.is_hovered(window) {
6566 editor.scroll_manager.set_is_hovering_minimap_thumb(
6567 layout
6568 .thumb_layout
6569 .thumb_bounds
6570 .is_some_and(|bounds| bounds.contains(&event.position)),
6571 cx,
6572 );
6573 } else {
6574 editor.scroll_manager.hide_minimap_thumb(cx);
6575 }
6576 cx.stop_propagation();
6577 });
6578 }
6579 });
6580 } else {
6581 window.on_mouse_event({
6582 let editor = self.editor.clone();
6583
6584 move |event: &MouseDownEvent, phase, window, cx| {
6585 if phase == DispatchPhase::Capture || !minimap_hitbox.is_hovered(window) {
6586 return;
6587 }
6588
6589 let event_position = event.position;
6590
6591 let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds else {
6592 return;
6593 };
6594
6595 editor.update(cx, |editor, cx| {
6596 if !thumb_bounds.contains(&event_position) {
6597 let click_position =
6598 event_position.relative_to(&minimap_hitbox.origin).y;
6599
6600 let top_position = (click_position
6601 - thumb_bounds.size.along(minimap_axis) / 2.0)
6602 .max(Pixels::ZERO);
6603
6604 let scroll_offset = (layout.minimap_scroll_top
6605 + top_position / layout.minimap_line_height)
6606 .min(layout.max_scroll_top);
6607
6608 let scroll_position = editor
6609 .scroll_position(cx)
6610 .apply_along(minimap_axis, |_| scroll_offset);
6611 editor.set_scroll_position(scroll_position, window, cx);
6612 }
6613
6614 editor.scroll_manager.set_is_dragging_minimap(cx);
6615 cx.stop_propagation();
6616 });
6617 }
6618 });
6619 }
6620 }
6621 }
6622
6623 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6624 for mut block in layout.blocks.drain(..) {
6625 if block.overlaps_gutter {
6626 block.element.paint(window, cx);
6627 } else {
6628 let mut bounds = layout.hitbox.bounds;
6629 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
6630 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6631 block.element.paint(window, cx);
6632 })
6633 }
6634 }
6635 }
6636
6637 fn paint_inline_completion_popover(
6638 &mut self,
6639 layout: &mut EditorLayout,
6640 window: &mut Window,
6641 cx: &mut App,
6642 ) {
6643 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
6644 inline_completion_popover.paint(window, cx);
6645 }
6646 }
6647
6648 fn paint_mouse_context_menu(
6649 &mut self,
6650 layout: &mut EditorLayout,
6651 window: &mut Window,
6652 cx: &mut App,
6653 ) {
6654 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
6655 mouse_context_menu.paint(window, cx);
6656 }
6657 }
6658
6659 fn paint_scroll_wheel_listener(
6660 &mut self,
6661 layout: &EditorLayout,
6662 window: &mut Window,
6663 cx: &mut App,
6664 ) {
6665 window.on_mouse_event({
6666 let position_map = layout.position_map.clone();
6667 let editor = self.editor.clone();
6668 let hitbox = layout.hitbox.clone();
6669 let mut delta = ScrollDelta::default();
6670
6671 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
6672 // accidentally turn off their scrolling.
6673 let base_scroll_sensitivity =
6674 EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
6675
6676 // Use a minimum fast_scroll_sensitivity for same reason above
6677 let fast_scroll_sensitivity = EditorSettings::get_global(cx)
6678 .fast_scroll_sensitivity
6679 .max(0.01);
6680
6681 move |event: &ScrollWheelEvent, phase, window, cx| {
6682 let scroll_sensitivity = {
6683 if event.modifiers.alt {
6684 fast_scroll_sensitivity
6685 } else {
6686 base_scroll_sensitivity
6687 }
6688 };
6689
6690 if phase == DispatchPhase::Bubble && hitbox.should_handle_scroll(window) {
6691 delta = delta.coalesce(event.delta);
6692 editor.update(cx, |editor, cx| {
6693 let position_map: &PositionMap = &position_map;
6694
6695 let line_height = position_map.line_height;
6696 let max_glyph_advance = position_map.em_advance;
6697 let (delta, axis) = match delta {
6698 gpui::ScrollDelta::Pixels(mut pixels) => {
6699 //Trackpad
6700 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
6701 (pixels, axis)
6702 }
6703
6704 gpui::ScrollDelta::Lines(lines) => {
6705 //Not trackpad
6706 let pixels =
6707 point(lines.x * max_glyph_advance, lines.y * line_height);
6708 (pixels, None)
6709 }
6710 };
6711
6712 let current_scroll_position = position_map.snapshot.scroll_position();
6713 let x = (current_scroll_position.x * max_glyph_advance
6714 - (delta.x * scroll_sensitivity))
6715 / max_glyph_advance;
6716 let y = (current_scroll_position.y * line_height
6717 - (delta.y * scroll_sensitivity))
6718 / line_height;
6719 let mut scroll_position =
6720 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
6721 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
6722 if forbid_vertical_scroll {
6723 scroll_position.y = current_scroll_position.y;
6724 }
6725
6726 if scroll_position != current_scroll_position {
6727 editor.scroll(scroll_position, axis, window, cx);
6728 cx.stop_propagation();
6729 } else if y < 0. {
6730 // Due to clamping, we may fail to detect cases of overscroll to the top;
6731 // We want the scroll manager to get an update in such cases and detect the change of direction
6732 // on the next frame.
6733 cx.notify();
6734 }
6735 });
6736 }
6737 }
6738 });
6739 }
6740
6741 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
6742 if self.editor.read(cx).mode.is_minimap() {
6743 return;
6744 }
6745
6746 self.paint_scroll_wheel_listener(layout, window, cx);
6747
6748 window.on_mouse_event({
6749 let position_map = layout.position_map.clone();
6750 let editor = self.editor.clone();
6751 let diff_hunk_range =
6752 layout
6753 .display_hunks
6754 .iter()
6755 .find_map(|(hunk, hunk_hitbox)| match hunk {
6756 DisplayDiffHunk::Folded { .. } => None,
6757 DisplayDiffHunk::Unfolded {
6758 multi_buffer_range, ..
6759 } => {
6760 if hunk_hitbox
6761 .as_ref()
6762 .map(|hitbox| hitbox.is_hovered(window))
6763 .unwrap_or(false)
6764 {
6765 Some(multi_buffer_range.clone())
6766 } else {
6767 None
6768 }
6769 }
6770 });
6771 let line_numbers = layout.line_numbers.clone();
6772
6773 move |event: &MouseDownEvent, phase, window, cx| {
6774 if phase == DispatchPhase::Bubble {
6775 match event.button {
6776 MouseButton::Left => editor.update(cx, |editor, cx| {
6777 let pending_mouse_down = editor
6778 .pending_mouse_down
6779 .get_or_insert_with(Default::default)
6780 .clone();
6781
6782 *pending_mouse_down.borrow_mut() = Some(event.clone());
6783
6784 Self::mouse_left_down(
6785 editor,
6786 event,
6787 diff_hunk_range.clone(),
6788 &position_map,
6789 line_numbers.as_ref(),
6790 window,
6791 cx,
6792 );
6793 }),
6794 MouseButton::Right => editor.update(cx, |editor, cx| {
6795 Self::mouse_right_down(editor, event, &position_map, window, cx);
6796 }),
6797 MouseButton::Middle => editor.update(cx, |editor, cx| {
6798 Self::mouse_middle_down(editor, event, &position_map, window, cx);
6799 }),
6800 _ => {}
6801 };
6802 }
6803 }
6804 });
6805
6806 window.on_mouse_event({
6807 let editor = self.editor.clone();
6808 let position_map = layout.position_map.clone();
6809
6810 move |event: &MouseUpEvent, phase, window, cx| {
6811 if phase == DispatchPhase::Bubble {
6812 editor.update(cx, |editor, cx| {
6813 Self::mouse_up(editor, event, &position_map, window, cx)
6814 });
6815 }
6816 }
6817 });
6818
6819 window.on_mouse_event({
6820 let editor = self.editor.clone();
6821 let position_map = layout.position_map.clone();
6822 let mut captured_mouse_down = None;
6823
6824 move |event: &MouseUpEvent, phase, window, cx| match phase {
6825 // Clear the pending mouse down during the capture phase,
6826 // so that it happens even if another event handler stops
6827 // propagation.
6828 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
6829 let pending_mouse_down = editor
6830 .pending_mouse_down
6831 .get_or_insert_with(Default::default)
6832 .clone();
6833
6834 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
6835 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
6836 captured_mouse_down = pending_mouse_down.take();
6837 window.refresh();
6838 }
6839 }),
6840 // Fire click handlers during the bubble phase.
6841 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
6842 if let Some(mouse_down) = captured_mouse_down.take() {
6843 let event = ClickEvent {
6844 down: mouse_down,
6845 up: event.clone(),
6846 };
6847 Self::click(editor, &event, &position_map, window, cx);
6848 }
6849 }),
6850 }
6851 });
6852
6853 window.on_mouse_event({
6854 let position_map = layout.position_map.clone();
6855 let editor = self.editor.clone();
6856
6857 move |event: &MouseMoveEvent, phase, window, cx| {
6858 if phase == DispatchPhase::Bubble {
6859 editor.update(cx, |editor, cx| {
6860 if editor.hover_state.focused(window, cx) {
6861 return;
6862 }
6863 if event.pressed_button == Some(MouseButton::Left)
6864 || event.pressed_button == Some(MouseButton::Middle)
6865 {
6866 Self::mouse_dragged(editor, event, &position_map, window, cx)
6867 }
6868
6869 Self::mouse_moved(editor, event, &position_map, window, cx)
6870 });
6871 }
6872 }
6873 });
6874 }
6875
6876 fn column_pixels(&self, column: usize, window: &Window) -> Pixels {
6877 let style = &self.style;
6878 let font_size = style.text.font_size.to_pixels(window.rem_size());
6879 let layout = window.text_system().shape_line(
6880 SharedString::from(" ".repeat(column)),
6881 font_size,
6882 &[TextRun {
6883 len: column,
6884 font: style.text.font(),
6885 color: Hsla::default(),
6886 background_color: None,
6887 underline: None,
6888 strikethrough: None,
6889 }],
6890 );
6891
6892 layout.width
6893 }
6894
6895 fn max_line_number_width(&self, snapshot: &EditorSnapshot, window: &mut Window) -> Pixels {
6896 let digit_count = snapshot.widest_line_number().ilog10() + 1;
6897 self.column_pixels(digit_count as usize, window)
6898 }
6899
6900 fn shape_line_number(
6901 &self,
6902 text: SharedString,
6903 color: Hsla,
6904 window: &mut Window,
6905 ) -> ShapedLine {
6906 let run = TextRun {
6907 len: text.len(),
6908 font: self.style.text.font(),
6909 color,
6910 background_color: None,
6911 underline: None,
6912 strikethrough: None,
6913 };
6914 window.text_system().shape_line(
6915 text,
6916 self.style.text.font_size.to_pixels(window.rem_size()),
6917 &[run],
6918 )
6919 }
6920
6921 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
6922 let unstaged = status.has_secondary_hunk();
6923 let unstaged_hollow = ProjectSettings::get_global(cx)
6924 .git
6925 .hunk_style
6926 .map_or(false, |style| {
6927 matches!(style, GitHunkStyleSetting::UnstagedHollow)
6928 });
6929
6930 unstaged == unstaged_hollow
6931 }
6932}
6933
6934fn header_jump_data(
6935 snapshot: &EditorSnapshot,
6936 block_row_start: DisplayRow,
6937 height: u32,
6938 for_excerpt: &ExcerptInfo,
6939) -> JumpData {
6940 let range = &for_excerpt.range;
6941 let buffer = &for_excerpt.buffer;
6942 let jump_anchor = range.primary.start;
6943
6944 let excerpt_start = range.context.start;
6945 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
6946 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
6947 0
6948 } else {
6949 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
6950 jump_position.row.saturating_sub(excerpt_start_point.row)
6951 };
6952
6953 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
6954 .saturating_sub(
6955 snapshot
6956 .scroll_anchor
6957 .scroll_position(&snapshot.display_snapshot)
6958 .y as u32,
6959 );
6960
6961 JumpData::MultiBufferPoint {
6962 excerpt_id: for_excerpt.id,
6963 anchor: jump_anchor,
6964 position: jump_position,
6965 line_offset_from_top,
6966 }
6967}
6968
6969pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
6970
6971impl AcceptEditPredictionBinding {
6972 pub fn keystroke(&self) -> Option<&Keystroke> {
6973 if let Some(binding) = self.0.as_ref() {
6974 match &binding.keystrokes() {
6975 [keystroke, ..] => Some(keystroke),
6976 _ => None,
6977 }
6978 } else {
6979 None
6980 }
6981 }
6982}
6983
6984fn prepaint_gutter_button(
6985 button: IconButton,
6986 row: DisplayRow,
6987 line_height: Pixels,
6988 gutter_dimensions: &GutterDimensions,
6989 scroll_pixel_position: gpui::Point<Pixels>,
6990 gutter_hitbox: &Hitbox,
6991 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
6992 window: &mut Window,
6993 cx: &mut App,
6994) -> AnyElement {
6995 let mut button = button.into_any_element();
6996
6997 let available_space = size(
6998 AvailableSpace::MinContent,
6999 AvailableSpace::Definite(line_height),
7000 );
7001 let indicator_size = button.layout_as_root(available_space, window, cx);
7002
7003 let blame_width = gutter_dimensions.git_blame_entries_width;
7004 let gutter_width = display_hunks
7005 .binary_search_by(|(hunk, _)| match hunk {
7006 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
7007 DisplayDiffHunk::Unfolded {
7008 display_row_range, ..
7009 } => {
7010 if display_row_range.end <= row {
7011 Ordering::Less
7012 } else if display_row_range.start > row {
7013 Ordering::Greater
7014 } else {
7015 Ordering::Equal
7016 }
7017 }
7018 })
7019 .ok()
7020 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
7021 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
7022
7023 let mut x = left_offset;
7024 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
7025 - indicator_size.width
7026 - left_offset;
7027 x += available_width / 2.;
7028
7029 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
7030 y += (line_height - indicator_size.height) / 2.;
7031
7032 button.prepaint_as_root(
7033 gutter_hitbox.origin + point(x, y),
7034 available_space,
7035 window,
7036 cx,
7037 );
7038 button
7039}
7040
7041fn render_inline_blame_entry(
7042 blame_entry: BlameEntry,
7043 style: &EditorStyle,
7044 cx: &mut App,
7045) -> Option<AnyElement> {
7046 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
7047 renderer.render_inline_blame_entry(&style.text, blame_entry, cx)
7048}
7049
7050fn render_blame_entry_popover(
7051 blame_entry: BlameEntry,
7052 scroll_handle: ScrollHandle,
7053 commit_message: Option<ParsedCommitMessage>,
7054 markdown: Entity<Markdown>,
7055 workspace: WeakEntity<Workspace>,
7056 blame: &Entity<GitBlame>,
7057 window: &mut Window,
7058 cx: &mut App,
7059) -> Option<AnyElement> {
7060 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
7061 let blame = blame.read(cx);
7062 let repository = blame.repository(cx)?.clone();
7063 renderer.render_blame_entry_popover(
7064 blame_entry,
7065 scroll_handle,
7066 commit_message,
7067 markdown,
7068 repository,
7069 workspace,
7070 window,
7071 cx,
7072 )
7073}
7074
7075fn render_blame_entry(
7076 ix: usize,
7077 blame: &Entity<GitBlame>,
7078 blame_entry: BlameEntry,
7079 style: &EditorStyle,
7080 last_used_color: &mut Option<(PlayerColor, Oid)>,
7081 editor: Entity<Editor>,
7082 workspace: Entity<Workspace>,
7083 renderer: Arc<dyn BlameRenderer>,
7084 cx: &mut App,
7085) -> Option<AnyElement> {
7086 let mut sha_color = cx
7087 .theme()
7088 .players()
7089 .color_for_participant(blame_entry.sha.into());
7090
7091 // If the last color we used is the same as the one we get for this line, but
7092 // the commit SHAs are different, then we try again to get a different color.
7093 match *last_used_color {
7094 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
7095 let index: u32 = blame_entry.sha.into();
7096 sha_color = cx.theme().players().color_for_participant(index + 1);
7097 }
7098 _ => {}
7099 };
7100 last_used_color.replace((sha_color, blame_entry.sha));
7101
7102 let blame = blame.read(cx);
7103 let details = blame.details_for_entry(&blame_entry);
7104 let repository = blame.repository(cx)?;
7105 renderer.render_blame_entry(
7106 &style.text,
7107 blame_entry,
7108 details,
7109 repository,
7110 workspace.downgrade(),
7111 editor,
7112 ix,
7113 sha_color.cursor,
7114 cx,
7115 )
7116}
7117
7118#[derive(Debug)]
7119pub(crate) struct LineWithInvisibles {
7120 fragments: SmallVec<[LineFragment; 1]>,
7121 invisibles: Vec<Invisible>,
7122 len: usize,
7123 pub(crate) width: Pixels,
7124 font_size: Pixels,
7125}
7126
7127enum LineFragment {
7128 Text(ShapedLine),
7129 Element {
7130 id: ChunkRendererId,
7131 element: Option<AnyElement>,
7132 size: Size<Pixels>,
7133 len: usize,
7134 },
7135}
7136
7137impl fmt::Debug for LineFragment {
7138 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
7139 match self {
7140 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
7141 LineFragment::Element { size, len, .. } => f
7142 .debug_struct("Element")
7143 .field("size", size)
7144 .field("len", len)
7145 .finish(),
7146 }
7147 }
7148}
7149
7150impl LineWithInvisibles {
7151 fn from_chunks<'a>(
7152 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
7153 editor_style: &EditorStyle,
7154 max_line_len: usize,
7155 max_line_count: usize,
7156 editor_mode: &EditorMode,
7157 text_width: Pixels,
7158 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
7159 window: &mut Window,
7160 cx: &mut App,
7161 ) -> Vec<Self> {
7162 let text_style = &editor_style.text;
7163 let mut layouts = Vec::with_capacity(max_line_count);
7164 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
7165 let mut line = String::new();
7166 let mut invisibles = Vec::new();
7167 let mut width = Pixels::ZERO;
7168 let mut len = 0;
7169 let mut styles = Vec::new();
7170 let mut non_whitespace_added = false;
7171 let mut row = 0;
7172 let mut line_exceeded_max_len = false;
7173 let font_size = text_style.font_size.to_pixels(window.rem_size());
7174
7175 let ellipsis = SharedString::from("⋯");
7176
7177 for highlighted_chunk in chunks.chain([HighlightedChunk {
7178 text: "\n",
7179 style: None,
7180 is_tab: false,
7181 is_inlay: false,
7182 replacement: None,
7183 }]) {
7184 if let Some(replacement) = highlighted_chunk.replacement {
7185 if !line.is_empty() {
7186 let shaped_line =
7187 window
7188 .text_system()
7189 .shape_line(line.clone().into(), font_size, &styles);
7190 width += shaped_line.width;
7191 len += shaped_line.len;
7192 fragments.push(LineFragment::Text(shaped_line));
7193 line.clear();
7194 styles.clear();
7195 }
7196
7197 match replacement {
7198 ChunkReplacement::Renderer(renderer) => {
7199 let available_width = if renderer.constrain_width {
7200 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
7201 ellipsis.clone()
7202 } else {
7203 SharedString::from(Arc::from(highlighted_chunk.text))
7204 };
7205 let shaped_line = window.text_system().shape_line(
7206 chunk,
7207 font_size,
7208 &[text_style.to_run(highlighted_chunk.text.len())],
7209 );
7210 AvailableSpace::Definite(shaped_line.width)
7211 } else {
7212 AvailableSpace::MinContent
7213 };
7214
7215 let mut element = (renderer.render)(&mut ChunkRendererContext {
7216 context: cx,
7217 window,
7218 max_width: text_width,
7219 });
7220 let line_height = text_style.line_height_in_pixels(window.rem_size());
7221 let size = element.layout_as_root(
7222 size(available_width, AvailableSpace::Definite(line_height)),
7223 window,
7224 cx,
7225 );
7226
7227 width += size.width;
7228 len += highlighted_chunk.text.len();
7229 fragments.push(LineFragment::Element {
7230 id: renderer.id,
7231 element: Some(element),
7232 size,
7233 len: highlighted_chunk.text.len(),
7234 });
7235 }
7236 ChunkReplacement::Str(x) => {
7237 let text_style = if let Some(style) = highlighted_chunk.style {
7238 Cow::Owned(text_style.clone().highlight(style))
7239 } else {
7240 Cow::Borrowed(text_style)
7241 };
7242
7243 let run = TextRun {
7244 len: x.len(),
7245 font: text_style.font(),
7246 color: text_style.color,
7247 background_color: text_style.background_color,
7248 underline: text_style.underline,
7249 strikethrough: text_style.strikethrough,
7250 };
7251 let line_layout = window
7252 .text_system()
7253 .shape_line(x, font_size, &[run])
7254 .with_len(highlighted_chunk.text.len());
7255
7256 width += line_layout.width;
7257 len += highlighted_chunk.text.len();
7258 fragments.push(LineFragment::Text(line_layout))
7259 }
7260 }
7261 } else {
7262 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
7263 if ix > 0 {
7264 let shaped_line = window.text_system().shape_line(
7265 line.clone().into(),
7266 font_size,
7267 &styles,
7268 );
7269 width += shaped_line.width;
7270 len += shaped_line.len;
7271 fragments.push(LineFragment::Text(shaped_line));
7272 layouts.push(Self {
7273 width: mem::take(&mut width),
7274 len: mem::take(&mut len),
7275 fragments: mem::take(&mut fragments),
7276 invisibles: std::mem::take(&mut invisibles),
7277 font_size,
7278 });
7279
7280 line.clear();
7281 styles.clear();
7282 row += 1;
7283 line_exceeded_max_len = false;
7284 non_whitespace_added = false;
7285 if row == max_line_count {
7286 return layouts;
7287 }
7288 }
7289
7290 if !line_chunk.is_empty() && !line_exceeded_max_len {
7291 let text_style = if let Some(style) = highlighted_chunk.style {
7292 Cow::Owned(text_style.clone().highlight(style))
7293 } else {
7294 Cow::Borrowed(text_style)
7295 };
7296
7297 if line.len() + line_chunk.len() > max_line_len {
7298 let mut chunk_len = max_line_len - line.len();
7299 while !line_chunk.is_char_boundary(chunk_len) {
7300 chunk_len -= 1;
7301 }
7302 line_chunk = &line_chunk[..chunk_len];
7303 line_exceeded_max_len = true;
7304 }
7305
7306 styles.push(TextRun {
7307 len: line_chunk.len(),
7308 font: text_style.font(),
7309 color: text_style.color,
7310 background_color: text_style.background_color,
7311 underline: text_style.underline,
7312 strikethrough: text_style.strikethrough,
7313 });
7314
7315 if editor_mode.is_full() && !highlighted_chunk.is_inlay {
7316 // Line wrap pads its contents with fake whitespaces,
7317 // avoid printing them
7318 let is_soft_wrapped = is_row_soft_wrapped(row);
7319 if highlighted_chunk.is_tab {
7320 if non_whitespace_added || !is_soft_wrapped {
7321 invisibles.push(Invisible::Tab {
7322 line_start_offset: line.len(),
7323 line_end_offset: line.len() + line_chunk.len(),
7324 });
7325 }
7326 } else {
7327 invisibles.extend(line_chunk.char_indices().filter_map(
7328 |(index, c)| {
7329 let is_whitespace = c.is_whitespace();
7330 non_whitespace_added |= !is_whitespace;
7331 if is_whitespace
7332 && (non_whitespace_added || !is_soft_wrapped)
7333 {
7334 Some(Invisible::Whitespace {
7335 line_offset: line.len() + index,
7336 })
7337 } else {
7338 None
7339 }
7340 },
7341 ))
7342 }
7343 }
7344
7345 line.push_str(line_chunk);
7346 }
7347 }
7348 }
7349 }
7350
7351 layouts
7352 }
7353
7354 fn prepaint(
7355 &mut self,
7356 line_height: Pixels,
7357 scroll_pixel_position: gpui::Point<Pixels>,
7358 row: DisplayRow,
7359 content_origin: gpui::Point<Pixels>,
7360 line_elements: &mut SmallVec<[AnyElement; 1]>,
7361 window: &mut Window,
7362 cx: &mut App,
7363 ) {
7364 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
7365 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
7366 for fragment in &mut self.fragments {
7367 match fragment {
7368 LineFragment::Text(line) => {
7369 fragment_origin.x += line.width;
7370 }
7371 LineFragment::Element { element, size, .. } => {
7372 let mut element = element
7373 .take()
7374 .expect("you can't prepaint LineWithInvisibles twice");
7375
7376 // Center the element vertically within the line.
7377 let mut element_origin = fragment_origin;
7378 element_origin.y += (line_height - size.height) / 2.;
7379 element.prepaint_at(element_origin, window, cx);
7380 line_elements.push(element);
7381
7382 fragment_origin.x += size.width;
7383 }
7384 }
7385 }
7386 }
7387
7388 fn draw(
7389 &self,
7390 layout: &EditorLayout,
7391 row: DisplayRow,
7392 content_origin: gpui::Point<Pixels>,
7393 whitespace_setting: ShowWhitespaceSetting,
7394 selection_ranges: &[Range<DisplayPoint>],
7395 window: &mut Window,
7396 cx: &mut App,
7397 ) {
7398 let line_height = layout.position_map.line_height;
7399 let line_y = line_height
7400 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
7401
7402 let mut fragment_origin =
7403 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
7404
7405 for fragment in &self.fragments {
7406 match fragment {
7407 LineFragment::Text(line) => {
7408 line.paint(fragment_origin, line_height, window, cx)
7409 .log_err();
7410 fragment_origin.x += line.width;
7411 }
7412 LineFragment::Element { size, .. } => {
7413 fragment_origin.x += size.width;
7414 }
7415 }
7416 }
7417
7418 self.draw_invisibles(
7419 selection_ranges,
7420 layout,
7421 content_origin,
7422 line_y,
7423 row,
7424 line_height,
7425 whitespace_setting,
7426 window,
7427 cx,
7428 );
7429 }
7430
7431 fn draw_background(
7432 &self,
7433 layout: &EditorLayout,
7434 row: DisplayRow,
7435 content_origin: gpui::Point<Pixels>,
7436 window: &mut Window,
7437 cx: &mut App,
7438 ) {
7439 let line_height = layout.position_map.line_height;
7440 let line_y = line_height
7441 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
7442
7443 let mut fragment_origin =
7444 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
7445
7446 for fragment in &self.fragments {
7447 match fragment {
7448 LineFragment::Text(line) => {
7449 line.paint_background(fragment_origin, line_height, window, cx)
7450 .log_err();
7451 fragment_origin.x += line.width;
7452 }
7453 LineFragment::Element { size, .. } => {
7454 fragment_origin.x += size.width;
7455 }
7456 }
7457 }
7458 }
7459
7460 fn draw_invisibles(
7461 &self,
7462 selection_ranges: &[Range<DisplayPoint>],
7463 layout: &EditorLayout,
7464 content_origin: gpui::Point<Pixels>,
7465 line_y: Pixels,
7466 row: DisplayRow,
7467 line_height: Pixels,
7468 whitespace_setting: ShowWhitespaceSetting,
7469 window: &mut Window,
7470 cx: &mut App,
7471 ) {
7472 let extract_whitespace_info = |invisible: &Invisible| {
7473 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
7474 Invisible::Tab {
7475 line_start_offset,
7476 line_end_offset,
7477 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
7478 Invisible::Whitespace { line_offset } => {
7479 (*line_offset, line_offset + 1, &layout.space_invisible)
7480 }
7481 };
7482
7483 let x_offset = self.x_for_index(token_offset);
7484 let invisible_offset =
7485 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
7486 let origin = content_origin
7487 + gpui::point(
7488 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
7489 line_y,
7490 );
7491
7492 (
7493 [token_offset, token_end_offset],
7494 Box::new(move |window: &mut Window, cx: &mut App| {
7495 invisible_symbol
7496 .paint(origin, line_height, window, cx)
7497 .log_err();
7498 }),
7499 )
7500 };
7501
7502 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
7503 match whitespace_setting {
7504 ShowWhitespaceSetting::None => (),
7505 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
7506 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
7507 let invisible_point = DisplayPoint::new(row, start as u32);
7508 if !selection_ranges
7509 .iter()
7510 .any(|region| region.start <= invisible_point && invisible_point < region.end)
7511 {
7512 return;
7513 }
7514
7515 paint(window, cx);
7516 }),
7517
7518 ShowWhitespaceSetting::Trailing => {
7519 let mut previous_start = self.len;
7520 for ([start, end], paint) in invisible_iter.rev() {
7521 if previous_start != end {
7522 break;
7523 }
7524 previous_start = start;
7525 paint(window, cx);
7526 }
7527 }
7528
7529 // For a whitespace to be on a boundary, any of the following conditions need to be met:
7530 // - It is a tab
7531 // - It is adjacent to an edge (start or end)
7532 // - It is adjacent to a whitespace (left or right)
7533 ShowWhitespaceSetting::Boundary => {
7534 // 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
7535 // the above cases.
7536 // Note: We zip in the original `invisibles` to check for tab equality
7537 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
7538 for (([start, end], paint), invisible) in
7539 invisible_iter.zip_eq(self.invisibles.iter())
7540 {
7541 let should_render = match (&last_seen, invisible) {
7542 (_, Invisible::Tab { .. }) => true,
7543 (Some((_, last_end, _)), _) => *last_end == start,
7544 _ => false,
7545 };
7546
7547 if should_render || start == 0 || end == self.len {
7548 paint(window, cx);
7549
7550 // Since we are scanning from the left, we will skip over the first available whitespace that is part
7551 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
7552 if let Some((should_render_last, last_end, paint_last)) = last_seen {
7553 // Note that we need to make sure that the last one is actually adjacent
7554 if !should_render_last && last_end == start {
7555 paint_last(window, cx);
7556 }
7557 }
7558 }
7559
7560 // Manually render anything within a selection
7561 let invisible_point = DisplayPoint::new(row, start as u32);
7562 if selection_ranges.iter().any(|region| {
7563 region.start <= invisible_point && invisible_point < region.end
7564 }) {
7565 paint(window, cx);
7566 }
7567
7568 last_seen = Some((should_render, end, paint));
7569 }
7570 }
7571 }
7572 }
7573
7574 pub fn x_for_index(&self, index: usize) -> Pixels {
7575 let mut fragment_start_x = Pixels::ZERO;
7576 let mut fragment_start_index = 0;
7577
7578 for fragment in &self.fragments {
7579 match fragment {
7580 LineFragment::Text(shaped_line) => {
7581 let fragment_end_index = fragment_start_index + shaped_line.len;
7582 if index < fragment_end_index {
7583 return fragment_start_x
7584 + shaped_line.x_for_index(index - fragment_start_index);
7585 }
7586 fragment_start_x += shaped_line.width;
7587 fragment_start_index = fragment_end_index;
7588 }
7589 LineFragment::Element { len, size, .. } => {
7590 let fragment_end_index = fragment_start_index + len;
7591 if index < fragment_end_index {
7592 return fragment_start_x;
7593 }
7594 fragment_start_x += size.width;
7595 fragment_start_index = fragment_end_index;
7596 }
7597 }
7598 }
7599
7600 fragment_start_x
7601 }
7602
7603 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
7604 let mut fragment_start_x = Pixels::ZERO;
7605 let mut fragment_start_index = 0;
7606
7607 for fragment in &self.fragments {
7608 match fragment {
7609 LineFragment::Text(shaped_line) => {
7610 let fragment_end_x = fragment_start_x + shaped_line.width;
7611 if x < fragment_end_x {
7612 return Some(
7613 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
7614 );
7615 }
7616 fragment_start_x = fragment_end_x;
7617 fragment_start_index += shaped_line.len;
7618 }
7619 LineFragment::Element { len, size, .. } => {
7620 let fragment_end_x = fragment_start_x + size.width;
7621 if x < fragment_end_x {
7622 return Some(fragment_start_index);
7623 }
7624 fragment_start_index += len;
7625 fragment_start_x = fragment_end_x;
7626 }
7627 }
7628 }
7629
7630 None
7631 }
7632
7633 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
7634 let mut fragment_start_index = 0;
7635
7636 for fragment in &self.fragments {
7637 match fragment {
7638 LineFragment::Text(shaped_line) => {
7639 let fragment_end_index = fragment_start_index + shaped_line.len;
7640 if index < fragment_end_index {
7641 return shaped_line.font_id_for_index(index - fragment_start_index);
7642 }
7643 fragment_start_index = fragment_end_index;
7644 }
7645 LineFragment::Element { len, .. } => {
7646 let fragment_end_index = fragment_start_index + len;
7647 if index < fragment_end_index {
7648 return None;
7649 }
7650 fragment_start_index = fragment_end_index;
7651 }
7652 }
7653 }
7654
7655 None
7656 }
7657}
7658
7659#[derive(Debug, Clone, Copy, PartialEq, Eq)]
7660enum Invisible {
7661 /// A tab character
7662 ///
7663 /// A tab character is internally represented by spaces (configured by the user's tab width)
7664 /// aligned to the nearest column, so it's necessary to store the start and end offset for
7665 /// adjacency checks.
7666 Tab {
7667 line_start_offset: usize,
7668 line_end_offset: usize,
7669 },
7670 Whitespace {
7671 line_offset: usize,
7672 },
7673}
7674
7675impl EditorElement {
7676 /// Returns the rem size to use when rendering the [`EditorElement`].
7677 ///
7678 /// This allows UI elements to scale based on the `buffer_font_size`.
7679 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
7680 match self.editor.read(cx).mode {
7681 EditorMode::Full {
7682 scale_ui_elements_with_buffer_font_size: true,
7683 ..
7684 }
7685 | EditorMode::Minimap { .. } => {
7686 let buffer_font_size = self.style.text.font_size;
7687 match buffer_font_size {
7688 AbsoluteLength::Pixels(pixels) => {
7689 let rem_size_scale = {
7690 // Our default UI font size is 14px on a 16px base scale.
7691 // This means the default UI font size is 0.875rems.
7692 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
7693
7694 // We then determine the delta between a single rem and the default font
7695 // size scale.
7696 let default_font_size_delta = 1. - default_font_size_scale;
7697
7698 // Finally, we add this delta to 1rem to get the scale factor that
7699 // should be used to scale up the UI.
7700 1. + default_font_size_delta
7701 };
7702
7703 Some(pixels * rem_size_scale)
7704 }
7705 AbsoluteLength::Rems(rems) => {
7706 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
7707 }
7708 }
7709 }
7710 // We currently use single-line and auto-height editors in UI contexts,
7711 // so we don't want to scale everything with the buffer font size, as it
7712 // ends up looking off.
7713 _ => None,
7714 }
7715 }
7716
7717 fn editor_with_selections(&self, cx: &App) -> Option<Entity<Editor>> {
7718 if let EditorMode::Minimap { parent } = self.editor.read(cx).mode() {
7719 parent.upgrade()
7720 } else {
7721 Some(self.editor.clone())
7722 }
7723 }
7724}
7725
7726impl Element for EditorElement {
7727 type RequestLayoutState = ();
7728 type PrepaintState = EditorLayout;
7729
7730 fn id(&self) -> Option<ElementId> {
7731 None
7732 }
7733
7734 fn source_location(&self) -> Option<&'static core::panic::Location<'static>> {
7735 None
7736 }
7737
7738 fn request_layout(
7739 &mut self,
7740 _: Option<&GlobalElementId>,
7741 _inspector_id: Option<&gpui::InspectorElementId>,
7742 window: &mut Window,
7743 cx: &mut App,
7744 ) -> (gpui::LayoutId, ()) {
7745 let rem_size = self.rem_size(cx);
7746 window.with_rem_size(rem_size, |window| {
7747 self.editor.update(cx, |editor, cx| {
7748 editor.set_style(self.style.clone(), window, cx);
7749
7750 let layout_id = match editor.mode {
7751 EditorMode::SingleLine { auto_width } => {
7752 let rem_size = window.rem_size();
7753
7754 let height = self.style.text.line_height_in_pixels(rem_size);
7755 if auto_width {
7756 let editor_handle = cx.entity().clone();
7757 let style = self.style.clone();
7758 window.request_measured_layout(
7759 Style::default(),
7760 move |_, _, window, cx| {
7761 let editor_snapshot = editor_handle
7762 .update(cx, |editor, cx| editor.snapshot(window, cx));
7763 let line = Self::layout_lines(
7764 DisplayRow(0)..DisplayRow(1),
7765 &editor_snapshot,
7766 &style,
7767 px(f32::MAX),
7768 |_| false, // Single lines never soft wrap
7769 window,
7770 cx,
7771 )
7772 .pop()
7773 .unwrap();
7774
7775 let font_id =
7776 window.text_system().resolve_font(&style.text.font());
7777 let font_size =
7778 style.text.font_size.to_pixels(window.rem_size());
7779 let em_width =
7780 window.text_system().em_width(font_id, font_size).unwrap();
7781
7782 size(line.width + em_width, height)
7783 },
7784 )
7785 } else {
7786 let mut style = Style::default();
7787 style.size.height = height.into();
7788 style.size.width = relative(1.).into();
7789 window.request_layout(style, None, cx)
7790 }
7791 }
7792 EditorMode::AutoHeight {
7793 min_lines,
7794 max_lines,
7795 } => {
7796 let editor_handle = cx.entity().clone();
7797 let max_line_number_width =
7798 self.max_line_number_width(&editor.snapshot(window, cx), window);
7799 window.request_measured_layout(
7800 Style::default(),
7801 move |known_dimensions, available_space, window, cx| {
7802 editor_handle
7803 .update(cx, |editor, cx| {
7804 compute_auto_height_layout(
7805 editor,
7806 min_lines,
7807 max_lines,
7808 max_line_number_width,
7809 known_dimensions,
7810 available_space.width,
7811 window,
7812 cx,
7813 )
7814 })
7815 .unwrap_or_default()
7816 },
7817 )
7818 }
7819 EditorMode::Minimap { .. } => {
7820 let mut style = Style::default();
7821 style.size.width = relative(1.).into();
7822 style.size.height = relative(1.).into();
7823 window.request_layout(style, None, cx)
7824 }
7825 EditorMode::Full {
7826 sized_by_content, ..
7827 } => {
7828 let mut style = Style::default();
7829 style.size.width = relative(1.).into();
7830 if sized_by_content {
7831 let snapshot = editor.snapshot(window, cx);
7832 let line_height =
7833 self.style.text.line_height_in_pixels(window.rem_size());
7834 let scroll_height =
7835 (snapshot.max_point().row().next_row().0 as f32) * line_height;
7836 style.size.height = scroll_height.into();
7837 } else {
7838 style.size.height = relative(1.).into();
7839 }
7840 window.request_layout(style, None, cx)
7841 }
7842 };
7843
7844 (layout_id, ())
7845 })
7846 })
7847 }
7848
7849 fn prepaint(
7850 &mut self,
7851 _: Option<&GlobalElementId>,
7852 _inspector_id: Option<&gpui::InspectorElementId>,
7853 bounds: Bounds<Pixels>,
7854 _: &mut Self::RequestLayoutState,
7855 window: &mut Window,
7856 cx: &mut App,
7857 ) -> Self::PrepaintState {
7858 let text_style = TextStyleRefinement {
7859 font_size: Some(self.style.text.font_size),
7860 line_height: Some(self.style.text.line_height),
7861 ..Default::default()
7862 };
7863 let focus_handle = self.editor.focus_handle(cx);
7864 window.set_view_id(self.editor.entity_id());
7865 window.set_focus_handle(&focus_handle, cx);
7866
7867 let rem_size = self.rem_size(cx);
7868 window.with_rem_size(rem_size, |window| {
7869 window.with_text_style(Some(text_style), |window| {
7870 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7871 let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| {
7872 (editor.snapshot(window, cx), editor.read_only(cx))
7873 });
7874 let style = self.style.clone();
7875
7876 let rem_size = window.rem_size();
7877 let font_id = window.text_system().resolve_font(&style.text.font());
7878 let font_size = style.text.font_size.to_pixels(rem_size);
7879 let line_height = style.text.line_height_in_pixels(rem_size);
7880 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
7881 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
7882 let glyph_grid_cell = size(em_advance, line_height);
7883
7884 let gutter_dimensions = snapshot
7885 .gutter_dimensions(
7886 font_id,
7887 font_size,
7888 self.max_line_number_width(&snapshot, window),
7889 cx,
7890 )
7891 .or_else(|| {
7892 self.editor.read(cx).offset_content.then(|| {
7893 GutterDimensions::default_with_margin(font_id, font_size, cx)
7894 })
7895 })
7896 .unwrap_or_default();
7897 let text_width = bounds.size.width - gutter_dimensions.width;
7898
7899 let settings = EditorSettings::get_global(cx);
7900 let scrollbars_shown = settings.scrollbar.show != ShowScrollbar::Never;
7901 let vertical_scrollbar_width = (scrollbars_shown
7902 && settings.scrollbar.axes.vertical
7903 && self.editor.read(cx).show_scrollbars.vertical)
7904 .then_some(style.scrollbar_width)
7905 .unwrap_or_default();
7906 let minimap_width = self
7907 .get_minimap_width(
7908 &settings.minimap,
7909 scrollbars_shown,
7910 text_width,
7911 em_width,
7912 font_size,
7913 rem_size,
7914 cx,
7915 )
7916 .unwrap_or_default();
7917
7918 let right_margin = minimap_width + vertical_scrollbar_width;
7919
7920 let editor_width =
7921 text_width - gutter_dimensions.margin - 2 * em_width - right_margin;
7922 let editor_margins = EditorMargins {
7923 gutter: gutter_dimensions,
7924 right: right_margin,
7925 };
7926
7927 // Offset the content_bounds from the text_bounds by the gutter margin (which
7928 // is roughly half a character wide) to make hit testing work more like how we want.
7929 let content_offset = point(editor_margins.gutter.margin, Pixels::ZERO);
7930
7931 let editor_content_width = editor_width - content_offset.x;
7932
7933 snapshot = self.editor.update(cx, |editor, cx| {
7934 editor.last_bounds = Some(bounds);
7935 editor.gutter_dimensions = gutter_dimensions;
7936 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
7937
7938 if matches!(
7939 editor.mode,
7940 EditorMode::AutoHeight { .. } | EditorMode::Minimap { .. }
7941 ) {
7942 snapshot
7943 } else {
7944 let wrap_width_for = |column: u32| (column as f32 * em_advance).ceil();
7945 let wrap_width = match editor.soft_wrap_mode(cx) {
7946 SoftWrap::GitDiff => None,
7947 SoftWrap::None => Some(wrap_width_for(MAX_LINE_LEN as u32 / 2)),
7948 SoftWrap::EditorWidth => Some(editor_content_width),
7949 SoftWrap::Column(column) => Some(wrap_width_for(column)),
7950 SoftWrap::Bounded(column) => {
7951 Some(editor_content_width.min(wrap_width_for(column)))
7952 }
7953 };
7954
7955 if editor.set_wrap_width(wrap_width, cx) {
7956 editor.snapshot(window, cx)
7957 } else {
7958 snapshot
7959 }
7960 }
7961 });
7962
7963 let hitbox = window.insert_hitbox(bounds, HitboxBehavior::Normal);
7964 let gutter_hitbox = window.insert_hitbox(
7965 gutter_bounds(bounds, gutter_dimensions),
7966 HitboxBehavior::Normal,
7967 );
7968 let text_hitbox = window.insert_hitbox(
7969 Bounds {
7970 origin: gutter_hitbox.top_right(),
7971 size: size(text_width, bounds.size.height),
7972 },
7973 HitboxBehavior::Normal,
7974 );
7975
7976 let content_origin = text_hitbox.origin + content_offset;
7977
7978 let editor_text_bounds =
7979 Bounds::from_corners(content_origin, bounds.bottom_right());
7980
7981 let height_in_lines = editor_text_bounds.size.height / line_height;
7982
7983 let max_row = snapshot.max_point().row().as_f32();
7984
7985 // The max scroll position for the top of the window
7986 let max_scroll_top = if matches!(
7987 snapshot.mode,
7988 EditorMode::SingleLine { .. }
7989 | EditorMode::AutoHeight { .. }
7990 | EditorMode::Full {
7991 sized_by_content: true,
7992 ..
7993 }
7994 ) {
7995 (max_row - height_in_lines + 1.).max(0.)
7996 } else {
7997 let settings = EditorSettings::get_global(cx);
7998 match settings.scroll_beyond_last_line {
7999 ScrollBeyondLastLine::OnePage => max_row,
8000 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
8001 ScrollBeyondLastLine::VerticalScrollMargin => {
8002 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
8003 .max(0.)
8004 }
8005 }
8006 };
8007
8008 // TODO: Autoscrolling for both axes
8009 let mut autoscroll_request = None;
8010 let mut autoscroll_containing_element = false;
8011 let mut autoscroll_horizontally = false;
8012 self.editor.update(cx, |editor, cx| {
8013 autoscroll_request = editor.autoscroll_request();
8014 autoscroll_containing_element =
8015 autoscroll_request.is_some() || editor.has_pending_selection();
8016 // TODO: Is this horizontal or vertical?!
8017 autoscroll_horizontally = editor.autoscroll_vertically(
8018 bounds,
8019 line_height,
8020 max_scroll_top,
8021 window,
8022 cx,
8023 );
8024 snapshot = editor.snapshot(window, cx);
8025 });
8026
8027 let mut scroll_position = snapshot.scroll_position();
8028 // The scroll position is a fractional point, the whole number of which represents
8029 // the top of the window in terms of display rows.
8030 let start_row = DisplayRow(scroll_position.y as u32);
8031 let max_row = snapshot.max_point().row();
8032 let end_row = cmp::min(
8033 (scroll_position.y + height_in_lines).ceil() as u32,
8034 max_row.next_row().0,
8035 );
8036 let end_row = DisplayRow(end_row);
8037
8038 let row_infos = snapshot
8039 .row_infos(start_row)
8040 .take((start_row..end_row).len())
8041 .collect::<Vec<RowInfo>>();
8042 let is_row_soft_wrapped = |row: usize| {
8043 row_infos
8044 .get(row)
8045 .map_or(true, |info| info.buffer_row.is_none())
8046 };
8047
8048 let start_anchor = if start_row == Default::default() {
8049 Anchor::min()
8050 } else {
8051 snapshot.buffer_snapshot.anchor_before(
8052 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
8053 )
8054 };
8055 let end_anchor = if end_row > max_row {
8056 Anchor::max()
8057 } else {
8058 snapshot.buffer_snapshot.anchor_before(
8059 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
8060 )
8061 };
8062
8063 let mut highlighted_rows = self
8064 .editor
8065 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
8066
8067 let is_light = cx.theme().appearance().is_light();
8068
8069 for (ix, row_info) in row_infos.iter().enumerate() {
8070 let Some(diff_status) = row_info.diff_status else {
8071 continue;
8072 };
8073
8074 let background_color = match diff_status.kind {
8075 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
8076 DiffHunkStatusKind::Deleted => {
8077 cx.theme().colors().version_control_deleted
8078 }
8079 DiffHunkStatusKind::Modified => {
8080 debug_panic!("modified diff status for row info");
8081 continue;
8082 }
8083 };
8084
8085 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
8086
8087 let hollow_highlight = LineHighlight {
8088 background: (background_color.opacity(if is_light {
8089 0.08
8090 } else {
8091 0.06
8092 }))
8093 .into(),
8094 border: Some(if is_light {
8095 background_color.opacity(0.48)
8096 } else {
8097 background_color.opacity(0.36)
8098 }),
8099 include_gutter: true,
8100 type_id: None,
8101 };
8102
8103 let filled_highlight = LineHighlight {
8104 background: solid_background(background_color.opacity(hunk_opacity)),
8105 border: None,
8106 include_gutter: true,
8107 type_id: None,
8108 };
8109
8110 let background = if Self::diff_hunk_hollow(diff_status, cx) {
8111 hollow_highlight
8112 } else {
8113 filled_highlight
8114 };
8115
8116 highlighted_rows
8117 .entry(start_row + DisplayRow(ix as u32))
8118 .or_insert(background);
8119 }
8120
8121 let highlighted_ranges = self
8122 .editor_with_selections(cx)
8123 .map(|editor| {
8124 editor.read(cx).background_highlights_in_range(
8125 start_anchor..end_anchor,
8126 &snapshot.display_snapshot,
8127 cx.theme(),
8128 )
8129 })
8130 .unwrap_or_default();
8131 let highlighted_gutter_ranges =
8132 self.editor.read(cx).gutter_highlights_in_range(
8133 start_anchor..end_anchor,
8134 &snapshot.display_snapshot,
8135 cx,
8136 );
8137
8138 let document_colors = self
8139 .editor
8140 .read(cx)
8141 .colors
8142 .as_ref()
8143 .map(|colors| colors.editor_display_highlights(&snapshot));
8144 let redacted_ranges = self.editor.read(cx).redacted_ranges(
8145 start_anchor..end_anchor,
8146 &snapshot.display_snapshot,
8147 cx,
8148 );
8149
8150 let (local_selections, selected_buffer_ids): (
8151 Vec<Selection<Point>>,
8152 Vec<BufferId>,
8153 ) = self
8154 .editor_with_selections(cx)
8155 .map(|editor| {
8156 editor.update(cx, |editor, cx| {
8157 let all_selections = editor.selections.all::<Point>(cx);
8158 let selected_buffer_ids = if editor.is_singleton(cx) {
8159 Vec::new()
8160 } else {
8161 let mut selected_buffer_ids =
8162 Vec::with_capacity(all_selections.len());
8163
8164 for selection in all_selections {
8165 for buffer_id in snapshot
8166 .buffer_snapshot
8167 .buffer_ids_for_range(selection.range())
8168 {
8169 if selected_buffer_ids.last() != Some(&buffer_id) {
8170 selected_buffer_ids.push(buffer_id);
8171 }
8172 }
8173 }
8174
8175 selected_buffer_ids
8176 };
8177
8178 let mut selections = editor
8179 .selections
8180 .disjoint_in_range(start_anchor..end_anchor, cx);
8181 selections.extend(editor.selections.pending(cx));
8182
8183 (selections, selected_buffer_ids)
8184 })
8185 })
8186 .unwrap_or_default();
8187
8188 let (selections, mut active_rows, newest_selection_head) = self
8189 .layout_selections(
8190 start_anchor,
8191 end_anchor,
8192 &local_selections,
8193 &snapshot,
8194 start_row,
8195 end_row,
8196 window,
8197 cx,
8198 );
8199 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
8200 editor.active_breakpoints(start_row..end_row, window, cx)
8201 });
8202 for (display_row, (_, bp, state)) in &breakpoint_rows {
8203 if bp.is_enabled() && state.is_none_or(|s| s.verified) {
8204 active_rows.entry(*display_row).or_default().breakpoint = true;
8205 }
8206 }
8207
8208 let line_numbers = self.layout_line_numbers(
8209 Some(&gutter_hitbox),
8210 gutter_dimensions,
8211 line_height,
8212 scroll_position,
8213 start_row..end_row,
8214 &row_infos,
8215 &active_rows,
8216 newest_selection_head,
8217 &snapshot,
8218 window,
8219 cx,
8220 );
8221
8222 // We add the gutter breakpoint indicator to breakpoint_rows after painting
8223 // line numbers so we don't paint a line number debug accent color if a user
8224 // has their mouse over that line when a breakpoint isn't there
8225 self.editor.update(cx, |editor, _| {
8226 if let Some(phantom_breakpoint) = &mut editor
8227 .gutter_breakpoint_indicator
8228 .0
8229 .filter(|phantom_breakpoint| phantom_breakpoint.is_active)
8230 {
8231 // Is there a non-phantom breakpoint on this line?
8232 phantom_breakpoint.collides_with_existing_breakpoint = true;
8233 breakpoint_rows
8234 .entry(phantom_breakpoint.display_row)
8235 .or_insert_with(|| {
8236 let position = snapshot.display_point_to_anchor(
8237 DisplayPoint::new(phantom_breakpoint.display_row, 0),
8238 Bias::Right,
8239 );
8240 let breakpoint = Breakpoint::new_standard();
8241 phantom_breakpoint.collides_with_existing_breakpoint = false;
8242 (position, breakpoint, None)
8243 });
8244 }
8245 });
8246
8247 let mut expand_toggles =
8248 window.with_element_namespace("expand_toggles", |window| {
8249 self.layout_expand_toggles(
8250 &gutter_hitbox,
8251 gutter_dimensions,
8252 em_width,
8253 line_height,
8254 scroll_position,
8255 &row_infos,
8256 window,
8257 cx,
8258 )
8259 });
8260
8261 let mut crease_toggles =
8262 window.with_element_namespace("crease_toggles", |window| {
8263 self.layout_crease_toggles(
8264 start_row..end_row,
8265 &row_infos,
8266 &active_rows,
8267 &snapshot,
8268 window,
8269 cx,
8270 )
8271 });
8272 let crease_trailers =
8273 window.with_element_namespace("crease_trailers", |window| {
8274 self.layout_crease_trailers(
8275 row_infos.iter().copied(),
8276 &snapshot,
8277 window,
8278 cx,
8279 )
8280 });
8281
8282 let display_hunks = self.layout_gutter_diff_hunks(
8283 line_height,
8284 &gutter_hitbox,
8285 start_row..end_row,
8286 &snapshot,
8287 window,
8288 cx,
8289 );
8290
8291 let mut line_layouts = Self::layout_lines(
8292 start_row..end_row,
8293 &snapshot,
8294 &self.style,
8295 editor_width,
8296 is_row_soft_wrapped,
8297 window,
8298 cx,
8299 );
8300 let new_renrerer_widths = line_layouts
8301 .iter()
8302 .flat_map(|layout| &layout.fragments)
8303 .filter_map(|fragment| {
8304 if let LineFragment::Element { id, size, .. } = fragment {
8305 Some((*id, size.width))
8306 } else {
8307 None
8308 }
8309 });
8310 if self.editor.update(cx, |editor, cx| {
8311 editor.update_renderer_widths(new_renrerer_widths, cx)
8312 }) {
8313 // If the fold widths have changed, we need to prepaint
8314 // the element again to account for any changes in
8315 // wrapping.
8316 return self.prepaint(None, _inspector_id, bounds, &mut (), window, cx);
8317 }
8318
8319 let longest_line_blame_width = self
8320 .editor
8321 .update(cx, |editor, cx| {
8322 if !editor.show_git_blame_inline {
8323 return None;
8324 }
8325 let blame = editor.blame.as_ref()?;
8326 let blame_entry = blame
8327 .update(cx, |blame, cx| {
8328 let row_infos =
8329 snapshot.row_infos(snapshot.longest_row()).next()?;
8330 blame.blame_for_rows(&[row_infos], cx).next()
8331 })
8332 .flatten()?;
8333 let mut element = render_inline_blame_entry(blame_entry, &style, cx)?;
8334 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
8335 Some(
8336 element
8337 .layout_as_root(AvailableSpace::min_size(), window, cx)
8338 .width
8339 + inline_blame_padding,
8340 )
8341 })
8342 .unwrap_or(Pixels::ZERO);
8343
8344 let longest_line_width = layout_line(
8345 snapshot.longest_row(),
8346 &snapshot,
8347 &style,
8348 editor_width,
8349 is_row_soft_wrapped,
8350 window,
8351 cx,
8352 )
8353 .width;
8354
8355 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
8356 text_hitbox.bounds,
8357 glyph_grid_cell,
8358 size(longest_line_width, max_row.as_f32() * line_height),
8359 longest_line_blame_width,
8360 editor_width,
8361 EditorSettings::get_global(cx),
8362 );
8363
8364 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
8365
8366 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
8367 snapshot.sticky_header_excerpt(scroll_position.y)
8368 } else {
8369 None
8370 };
8371 let sticky_header_excerpt_id =
8372 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
8373
8374 let blocks = window.with_element_namespace("blocks", |window| {
8375 self.render_blocks(
8376 start_row..end_row,
8377 &snapshot,
8378 &hitbox,
8379 &text_hitbox,
8380 editor_width,
8381 &mut scroll_width,
8382 &editor_margins,
8383 em_width,
8384 gutter_dimensions.full_width(),
8385 line_height,
8386 &mut line_layouts,
8387 &local_selections,
8388 &selected_buffer_ids,
8389 is_row_soft_wrapped,
8390 sticky_header_excerpt_id,
8391 window,
8392 cx,
8393 )
8394 });
8395 let (mut blocks, row_block_types) = match blocks {
8396 Ok(blocks) => blocks,
8397 Err(resized_blocks) => {
8398 self.editor.update(cx, |editor, cx| {
8399 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
8400 });
8401 return self.prepaint(None, _inspector_id, bounds, &mut (), window, cx);
8402 }
8403 };
8404
8405 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
8406 window.with_element_namespace("blocks", |window| {
8407 self.layout_sticky_buffer_header(
8408 sticky_header_excerpt,
8409 scroll_position.y,
8410 line_height,
8411 right_margin,
8412 &snapshot,
8413 &hitbox,
8414 &selected_buffer_ids,
8415 &blocks,
8416 window,
8417 cx,
8418 )
8419 })
8420 });
8421
8422 let start_buffer_row =
8423 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
8424 let end_buffer_row =
8425 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
8426
8427 let scroll_max = point(
8428 ((scroll_width - editor_content_width) / em_advance).max(0.0),
8429 max_scroll_top,
8430 );
8431
8432 self.editor.update(cx, |editor, cx| {
8433 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
8434
8435 let autoscrolled = if autoscroll_horizontally {
8436 editor.autoscroll_horizontally(
8437 start_row,
8438 editor_content_width,
8439 scroll_width,
8440 em_advance,
8441 &line_layouts,
8442 cx,
8443 )
8444 } else {
8445 false
8446 };
8447
8448 if clamped || autoscrolled {
8449 snapshot = editor.snapshot(window, cx);
8450 scroll_position = snapshot.scroll_position();
8451 }
8452 });
8453
8454 let scroll_pixel_position = point(
8455 scroll_position.x * em_advance,
8456 scroll_position.y * line_height,
8457 );
8458 let indent_guides = self.layout_indent_guides(
8459 content_origin,
8460 text_hitbox.origin,
8461 start_buffer_row..end_buffer_row,
8462 scroll_pixel_position,
8463 line_height,
8464 &snapshot,
8465 window,
8466 cx,
8467 );
8468
8469 let crease_trailers =
8470 window.with_element_namespace("crease_trailers", |window| {
8471 self.prepaint_crease_trailers(
8472 crease_trailers,
8473 &line_layouts,
8474 line_height,
8475 content_origin,
8476 scroll_pixel_position,
8477 em_width,
8478 window,
8479 cx,
8480 )
8481 });
8482
8483 let (inline_completion_popover, inline_completion_popover_origin) = self
8484 .editor
8485 .update(cx, |editor, cx| {
8486 editor.render_edit_prediction_popover(
8487 &text_hitbox.bounds,
8488 content_origin,
8489 right_margin,
8490 &snapshot,
8491 start_row..end_row,
8492 scroll_position.y,
8493 scroll_position.y + height_in_lines,
8494 &line_layouts,
8495 line_height,
8496 scroll_pixel_position,
8497 newest_selection_head,
8498 editor_width,
8499 &style,
8500 window,
8501 cx,
8502 )
8503 })
8504 .unzip();
8505
8506 let mut inline_diagnostics = self.layout_inline_diagnostics(
8507 &line_layouts,
8508 &crease_trailers,
8509 &row_block_types,
8510 content_origin,
8511 scroll_pixel_position,
8512 inline_completion_popover_origin,
8513 start_row,
8514 end_row,
8515 line_height,
8516 em_width,
8517 &style,
8518 window,
8519 cx,
8520 );
8521
8522 let mut inline_blame_layout = None;
8523 let mut inline_code_actions = None;
8524 if let Some(newest_selection_head) = newest_selection_head {
8525 let display_row = newest_selection_head.row();
8526 if (start_row..end_row).contains(&display_row)
8527 && !row_block_types.contains_key(&display_row)
8528 {
8529 inline_code_actions = self.layout_inline_code_actions(
8530 newest_selection_head,
8531 content_origin,
8532 scroll_pixel_position,
8533 line_height,
8534 &snapshot,
8535 window,
8536 cx,
8537 );
8538
8539 let line_ix = display_row.minus(start_row) as usize;
8540 if let (Some(row_info), Some(line_layout), Some(crease_trailer)) = (
8541 row_infos.get(line_ix),
8542 line_layouts.get(line_ix),
8543 crease_trailers.get(line_ix),
8544 ) {
8545 let crease_trailer_layout = crease_trailer.as_ref();
8546 if let Some(layout) = self.layout_inline_blame(
8547 display_row,
8548 row_info,
8549 line_layout,
8550 crease_trailer_layout,
8551 em_width,
8552 content_origin,
8553 scroll_pixel_position,
8554 line_height,
8555 &text_hitbox,
8556 window,
8557 cx,
8558 ) {
8559 inline_blame_layout = Some(layout);
8560 // Blame overrides inline diagnostics
8561 inline_diagnostics.remove(&display_row);
8562 }
8563 } else {
8564 log::error!(
8565 "bug: line_ix {} is out of bounds - row_infos.len(): {}, line_layouts.len(): {}, crease_trailers.len(): {}",
8566 line_ix,
8567 row_infos.len(),
8568 line_layouts.len(),
8569 crease_trailers.len(),
8570 );
8571 }
8572 }
8573 }
8574
8575 let blamed_display_rows = self.layout_blame_entries(
8576 &row_infos,
8577 em_width,
8578 scroll_position,
8579 line_height,
8580 &gutter_hitbox,
8581 gutter_dimensions.git_blame_entries_width,
8582 window,
8583 cx,
8584 );
8585
8586 self.editor.update(cx, |editor, cx| {
8587 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
8588
8589 let autoscrolled = if autoscroll_horizontally {
8590 editor.autoscroll_horizontally(
8591 start_row,
8592 editor_content_width,
8593 scroll_width,
8594 em_advance,
8595 &line_layouts,
8596 cx,
8597 )
8598 } else {
8599 false
8600 };
8601
8602 if clamped || autoscrolled {
8603 snapshot = editor.snapshot(window, cx);
8604 scroll_position = snapshot.scroll_position();
8605 }
8606 });
8607
8608 let line_elements = self.prepaint_lines(
8609 start_row,
8610 &mut line_layouts,
8611 line_height,
8612 scroll_pixel_position,
8613 content_origin,
8614 window,
8615 cx,
8616 );
8617
8618 window.with_element_namespace("blocks", |window| {
8619 self.layout_blocks(
8620 &mut blocks,
8621 &hitbox,
8622 line_height,
8623 scroll_pixel_position,
8624 window,
8625 cx,
8626 );
8627 });
8628
8629 let cursors = self.collect_cursors(&snapshot, cx);
8630 let visible_row_range = start_row..end_row;
8631 let non_visible_cursors = cursors
8632 .iter()
8633 .any(|c| !visible_row_range.contains(&c.0.row()));
8634
8635 let visible_cursors = self.layout_visible_cursors(
8636 &snapshot,
8637 &selections,
8638 &row_block_types,
8639 start_row..end_row,
8640 &line_layouts,
8641 &text_hitbox,
8642 content_origin,
8643 scroll_position,
8644 scroll_pixel_position,
8645 line_height,
8646 em_width,
8647 em_advance,
8648 autoscroll_containing_element,
8649 window,
8650 cx,
8651 );
8652
8653 let scrollbars_layout = self.layout_scrollbars(
8654 &snapshot,
8655 &scrollbar_layout_information,
8656 content_offset,
8657 scroll_position,
8658 non_visible_cursors,
8659 right_margin,
8660 editor_width,
8661 window,
8662 cx,
8663 );
8664
8665 let gutter_settings = EditorSettings::get_global(cx).gutter;
8666
8667 let context_menu_layout =
8668 if let Some(newest_selection_head) = newest_selection_head {
8669 let newest_selection_point =
8670 newest_selection_head.to_point(&snapshot.display_snapshot);
8671 if (start_row..end_row).contains(&newest_selection_head.row()) {
8672 self.layout_cursor_popovers(
8673 line_height,
8674 &text_hitbox,
8675 content_origin,
8676 right_margin,
8677 start_row,
8678 scroll_pixel_position,
8679 &line_layouts,
8680 newest_selection_head,
8681 newest_selection_point,
8682 &style,
8683 window,
8684 cx,
8685 )
8686 } else {
8687 None
8688 }
8689 } else {
8690 None
8691 };
8692
8693 self.layout_gutter_menu(
8694 line_height,
8695 &text_hitbox,
8696 content_origin,
8697 right_margin,
8698 scroll_pixel_position,
8699 gutter_dimensions.width - gutter_dimensions.left_padding,
8700 window,
8701 cx,
8702 );
8703
8704 let test_indicators = if gutter_settings.runnables {
8705 self.layout_run_indicators(
8706 line_height,
8707 start_row..end_row,
8708 &row_infos,
8709 scroll_pixel_position,
8710 &gutter_dimensions,
8711 &gutter_hitbox,
8712 &display_hunks,
8713 &snapshot,
8714 &mut breakpoint_rows,
8715 window,
8716 cx,
8717 )
8718 } else {
8719 Vec::new()
8720 };
8721
8722 let show_breakpoints = snapshot
8723 .show_breakpoints
8724 .unwrap_or(gutter_settings.breakpoints);
8725 let breakpoints = if show_breakpoints {
8726 self.layout_breakpoints(
8727 line_height,
8728 start_row..end_row,
8729 scroll_pixel_position,
8730 &gutter_dimensions,
8731 &gutter_hitbox,
8732 &display_hunks,
8733 &snapshot,
8734 breakpoint_rows,
8735 &row_infos,
8736 window,
8737 cx,
8738 )
8739 } else {
8740 Vec::new()
8741 };
8742
8743 self.layout_signature_help(
8744 &hitbox,
8745 content_origin,
8746 scroll_pixel_position,
8747 newest_selection_head,
8748 start_row,
8749 &line_layouts,
8750 line_height,
8751 em_width,
8752 context_menu_layout,
8753 window,
8754 cx,
8755 );
8756
8757 if !cx.has_active_drag() {
8758 self.layout_hover_popovers(
8759 &snapshot,
8760 &hitbox,
8761 start_row..end_row,
8762 content_origin,
8763 scroll_pixel_position,
8764 &line_layouts,
8765 line_height,
8766 em_width,
8767 context_menu_layout,
8768 window,
8769 cx,
8770 );
8771 }
8772
8773 let mouse_context_menu = self.layout_mouse_context_menu(
8774 &snapshot,
8775 start_row..end_row,
8776 content_origin,
8777 window,
8778 cx,
8779 );
8780
8781 window.with_element_namespace("crease_toggles", |window| {
8782 self.prepaint_crease_toggles(
8783 &mut crease_toggles,
8784 line_height,
8785 &gutter_dimensions,
8786 gutter_settings,
8787 scroll_pixel_position,
8788 &gutter_hitbox,
8789 window,
8790 cx,
8791 )
8792 });
8793
8794 window.with_element_namespace("expand_toggles", |window| {
8795 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
8796 });
8797
8798 let wrap_guides = self.layout_wrap_guides(
8799 em_advance,
8800 scroll_position,
8801 content_origin,
8802 scrollbars_layout.as_ref(),
8803 vertical_scrollbar_width,
8804 &hitbox,
8805 window,
8806 cx,
8807 );
8808
8809 let minimap = window.with_element_namespace("minimap", |window| {
8810 self.layout_minimap(
8811 &snapshot,
8812 minimap_width,
8813 scroll_position,
8814 &scrollbar_layout_information,
8815 scrollbars_layout.as_ref(),
8816 window,
8817 cx,
8818 )
8819 });
8820
8821 let invisible_symbol_font_size = font_size / 2.;
8822 let tab_invisible = window.text_system().shape_line(
8823 "→".into(),
8824 invisible_symbol_font_size,
8825 &[TextRun {
8826 len: "→".len(),
8827 font: self.style.text.font(),
8828 color: cx.theme().colors().editor_invisible,
8829 background_color: None,
8830 underline: None,
8831 strikethrough: None,
8832 }],
8833 );
8834 let space_invisible = window.text_system().shape_line(
8835 "•".into(),
8836 invisible_symbol_font_size,
8837 &[TextRun {
8838 len: "•".len(),
8839 font: self.style.text.font(),
8840 color: cx.theme().colors().editor_invisible,
8841 background_color: None,
8842 underline: None,
8843 strikethrough: None,
8844 }],
8845 );
8846
8847 let mode = snapshot.mode.clone();
8848
8849 let (diff_hunk_controls, diff_hunk_control_bounds) = if is_read_only {
8850 (vec![], vec![])
8851 } else {
8852 self.layout_diff_hunk_controls(
8853 start_row..end_row,
8854 &row_infos,
8855 &text_hitbox,
8856 newest_selection_head,
8857 line_height,
8858 right_margin,
8859 scroll_pixel_position,
8860 &display_hunks,
8861 &highlighted_rows,
8862 self.editor.clone(),
8863 window,
8864 cx,
8865 )
8866 };
8867
8868 let position_map = Rc::new(PositionMap {
8869 size: bounds.size,
8870 visible_row_range,
8871 scroll_pixel_position,
8872 scroll_max,
8873 line_layouts,
8874 line_height,
8875 em_width,
8876 em_advance,
8877 snapshot,
8878 gutter_hitbox: gutter_hitbox.clone(),
8879 text_hitbox: text_hitbox.clone(),
8880 inline_blame_bounds: inline_blame_layout
8881 .as_ref()
8882 .map(|layout| (layout.bounds, layout.entry.clone())),
8883 display_hunks: display_hunks.clone(),
8884 diff_hunk_control_bounds: diff_hunk_control_bounds.clone(),
8885 });
8886
8887 self.editor.update(cx, |editor, _| {
8888 editor.last_position_map = Some(position_map.clone())
8889 });
8890
8891 EditorLayout {
8892 mode,
8893 position_map,
8894 visible_display_row_range: start_row..end_row,
8895 wrap_guides,
8896 indent_guides,
8897 hitbox,
8898 gutter_hitbox,
8899 display_hunks,
8900 content_origin,
8901 scrollbars_layout,
8902 minimap,
8903 active_rows,
8904 highlighted_rows,
8905 highlighted_ranges,
8906 highlighted_gutter_ranges,
8907 redacted_ranges,
8908 document_colors,
8909 line_elements,
8910 line_numbers,
8911 blamed_display_rows,
8912 inline_diagnostics,
8913 inline_blame_layout,
8914 inline_code_actions,
8915 blocks,
8916 cursors,
8917 visible_cursors,
8918 selections,
8919 inline_completion_popover,
8920 diff_hunk_controls,
8921 mouse_context_menu,
8922 test_indicators,
8923 breakpoints,
8924 crease_toggles,
8925 crease_trailers,
8926 tab_invisible,
8927 space_invisible,
8928 sticky_buffer_header,
8929 expand_toggles,
8930 }
8931 })
8932 })
8933 })
8934 }
8935
8936 fn paint(
8937 &mut self,
8938 _: Option<&GlobalElementId>,
8939 _inspector_id: Option<&gpui::InspectorElementId>,
8940 bounds: Bounds<gpui::Pixels>,
8941 _: &mut Self::RequestLayoutState,
8942 layout: &mut Self::PrepaintState,
8943 window: &mut Window,
8944 cx: &mut App,
8945 ) {
8946 let focus_handle = self.editor.focus_handle(cx);
8947 let key_context = self
8948 .editor
8949 .update(cx, |editor, cx| editor.key_context(window, cx));
8950
8951 window.set_key_context(key_context);
8952 window.handle_input(
8953 &focus_handle,
8954 ElementInputHandler::new(bounds, self.editor.clone()),
8955 cx,
8956 );
8957 self.register_actions(window, cx);
8958 self.register_key_listeners(window, cx, layout);
8959
8960 let text_style = TextStyleRefinement {
8961 font_size: Some(self.style.text.font_size),
8962 line_height: Some(self.style.text.line_height),
8963 ..Default::default()
8964 };
8965 let rem_size = self.rem_size(cx);
8966 window.with_rem_size(rem_size, |window| {
8967 window.with_text_style(Some(text_style), |window| {
8968 window.with_content_mask(Some(ContentMask { bounds }), |window| {
8969 self.paint_mouse_listeners(layout, window, cx);
8970 self.paint_background(layout, window, cx);
8971 self.paint_indent_guides(layout, window, cx);
8972
8973 if layout.gutter_hitbox.size.width > Pixels::ZERO {
8974 self.paint_blamed_display_rows(layout, window, cx);
8975 self.paint_line_numbers(layout, window, cx);
8976 }
8977
8978 self.paint_text(layout, window, cx);
8979
8980 if layout.gutter_hitbox.size.width > Pixels::ZERO {
8981 self.paint_gutter_highlights(layout, window, cx);
8982 self.paint_gutter_indicators(layout, window, cx);
8983 }
8984
8985 if !layout.blocks.is_empty() {
8986 window.with_element_namespace("blocks", |window| {
8987 self.paint_blocks(layout, window, cx);
8988 });
8989 }
8990
8991 window.with_element_namespace("blocks", |window| {
8992 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
8993 sticky_header.paint(window, cx)
8994 }
8995 });
8996
8997 self.paint_minimap(layout, window, cx);
8998 self.paint_scrollbars(layout, window, cx);
8999 self.paint_inline_completion_popover(layout, window, cx);
9000 self.paint_mouse_context_menu(layout, window, cx);
9001 });
9002 })
9003 })
9004 }
9005}
9006
9007pub(super) fn gutter_bounds(
9008 editor_bounds: Bounds<Pixels>,
9009 gutter_dimensions: GutterDimensions,
9010) -> Bounds<Pixels> {
9011 Bounds {
9012 origin: editor_bounds.origin,
9013 size: size(gutter_dimensions.width, editor_bounds.size.height),
9014 }
9015}
9016
9017#[derive(Clone, Copy)]
9018struct ContextMenuLayout {
9019 y_flipped: bool,
9020 bounds: Bounds<Pixels>,
9021}
9022
9023/// Holds information required for layouting the editor scrollbars.
9024struct ScrollbarLayoutInformation {
9025 /// The bounds of the editor area (excluding the content offset).
9026 editor_bounds: Bounds<Pixels>,
9027 /// The available range to scroll within the document.
9028 scroll_range: Size<Pixels>,
9029 /// The space available for one glyph in the editor.
9030 glyph_grid_cell: Size<Pixels>,
9031}
9032
9033impl ScrollbarLayoutInformation {
9034 pub fn new(
9035 editor_bounds: Bounds<Pixels>,
9036 glyph_grid_cell: Size<Pixels>,
9037 document_size: Size<Pixels>,
9038 longest_line_blame_width: Pixels,
9039 editor_width: Pixels,
9040 settings: &EditorSettings,
9041 ) -> Self {
9042 let vertical_overscroll = match settings.scroll_beyond_last_line {
9043 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
9044 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
9045 ScrollBeyondLastLine::VerticalScrollMargin => {
9046 (1.0 + settings.vertical_scroll_margin) * glyph_grid_cell.height
9047 }
9048 };
9049
9050 let right_margin = if document_size.width + longest_line_blame_width >= editor_width {
9051 glyph_grid_cell.width
9052 } else {
9053 px(0.0)
9054 };
9055
9056 let overscroll = size(right_margin + longest_line_blame_width, vertical_overscroll);
9057
9058 let scroll_range = document_size + overscroll;
9059
9060 ScrollbarLayoutInformation {
9061 editor_bounds,
9062 scroll_range,
9063 glyph_grid_cell,
9064 }
9065 }
9066}
9067
9068impl IntoElement for EditorElement {
9069 type Element = Self;
9070
9071 fn into_element(self) -> Self::Element {
9072 self
9073 }
9074}
9075
9076pub struct EditorLayout {
9077 position_map: Rc<PositionMap>,
9078 hitbox: Hitbox,
9079 gutter_hitbox: Hitbox,
9080 content_origin: gpui::Point<Pixels>,
9081 scrollbars_layout: Option<EditorScrollbars>,
9082 minimap: Option<MinimapLayout>,
9083 mode: EditorMode,
9084 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
9085 indent_guides: Option<Vec<IndentGuideLayout>>,
9086 visible_display_row_range: Range<DisplayRow>,
9087 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
9088 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
9089 line_elements: SmallVec<[AnyElement; 1]>,
9090 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
9091 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
9092 blamed_display_rows: Option<Vec<AnyElement>>,
9093 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
9094 inline_blame_layout: Option<InlineBlameLayout>,
9095 inline_code_actions: Option<AnyElement>,
9096 blocks: Vec<BlockLayout>,
9097 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
9098 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
9099 redacted_ranges: Vec<Range<DisplayPoint>>,
9100 cursors: Vec<(DisplayPoint, Hsla)>,
9101 visible_cursors: Vec<CursorLayout>,
9102 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
9103 test_indicators: Vec<AnyElement>,
9104 breakpoints: Vec<AnyElement>,
9105 crease_toggles: Vec<Option<AnyElement>>,
9106 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
9107 diff_hunk_controls: Vec<AnyElement>,
9108 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
9109 inline_completion_popover: Option<AnyElement>,
9110 mouse_context_menu: Option<AnyElement>,
9111 tab_invisible: ShapedLine,
9112 space_invisible: ShapedLine,
9113 sticky_buffer_header: Option<AnyElement>,
9114 document_colors: Option<(DocumentColorsRenderMode, Vec<(Range<DisplayPoint>, Hsla)>)>,
9115}
9116
9117impl EditorLayout {
9118 fn line_end_overshoot(&self) -> Pixels {
9119 0.15 * self.position_map.line_height
9120 }
9121}
9122
9123struct LineNumberLayout {
9124 shaped_line: ShapedLine,
9125 hitbox: Option<Hitbox>,
9126}
9127
9128struct ColoredRange<T> {
9129 start: T,
9130 end: T,
9131 color: Hsla,
9132}
9133
9134impl Along for ScrollbarAxes {
9135 type Unit = bool;
9136
9137 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
9138 match axis {
9139 ScrollbarAxis::Horizontal => self.horizontal,
9140 ScrollbarAxis::Vertical => self.vertical,
9141 }
9142 }
9143
9144 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
9145 match axis {
9146 ScrollbarAxis::Horizontal => ScrollbarAxes {
9147 horizontal: f(self.horizontal),
9148 vertical: self.vertical,
9149 },
9150 ScrollbarAxis::Vertical => ScrollbarAxes {
9151 horizontal: self.horizontal,
9152 vertical: f(self.vertical),
9153 },
9154 }
9155 }
9156}
9157
9158#[derive(Clone)]
9159struct EditorScrollbars {
9160 pub vertical: Option<ScrollbarLayout>,
9161 pub horizontal: Option<ScrollbarLayout>,
9162 pub visible: bool,
9163}
9164
9165impl EditorScrollbars {
9166 pub fn from_scrollbar_axes(
9167 settings_visibility: ScrollbarAxes,
9168 layout_information: &ScrollbarLayoutInformation,
9169 content_offset: gpui::Point<Pixels>,
9170 scroll_position: gpui::Point<f32>,
9171 scrollbar_width: Pixels,
9172 right_margin: Pixels,
9173 editor_width: Pixels,
9174 show_scrollbars: bool,
9175 scrollbar_state: Option<&ActiveScrollbarState>,
9176 window: &mut Window,
9177 ) -> Self {
9178 let ScrollbarLayoutInformation {
9179 editor_bounds,
9180 scroll_range,
9181 glyph_grid_cell,
9182 } = layout_information;
9183
9184 let viewport_size = size(editor_width, editor_bounds.size.height);
9185
9186 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
9187 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
9188 Corner::BottomLeft,
9189 editor_bounds.bottom_left(),
9190 size(
9191 // The horizontal viewport size differs from the space available for the
9192 // horizontal scrollbar, so we have to manually stich it together here.
9193 editor_bounds.size.width - right_margin,
9194 scrollbar_width,
9195 ),
9196 ),
9197 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
9198 Corner::TopRight,
9199 editor_bounds.top_right(),
9200 size(scrollbar_width, viewport_size.height),
9201 ),
9202 };
9203
9204 let mut create_scrollbar_layout = |axis| {
9205 settings_visibility
9206 .along(axis)
9207 .then(|| {
9208 (
9209 viewport_size.along(axis) - content_offset.along(axis),
9210 scroll_range.along(axis),
9211 )
9212 })
9213 .filter(|(viewport_size, scroll_range)| {
9214 // The scrollbar should only be rendered if the content does
9215 // not entirely fit into the editor
9216 // However, this only applies to the horizontal scrollbar, as information about the
9217 // vertical scrollbar layout is always needed for scrollbar diagnostics.
9218 axis != ScrollbarAxis::Horizontal || viewport_size < scroll_range
9219 })
9220 .map(|(viewport_size, scroll_range)| {
9221 ScrollbarLayout::new(
9222 window.insert_hitbox(scrollbar_bounds_for(axis), HitboxBehavior::Normal),
9223 viewport_size,
9224 scroll_range,
9225 glyph_grid_cell.along(axis),
9226 content_offset.along(axis),
9227 scroll_position.along(axis),
9228 show_scrollbars,
9229 axis,
9230 )
9231 .with_thumb_state(
9232 scrollbar_state.and_then(|state| state.thumb_state_for_axis(axis)),
9233 )
9234 })
9235 };
9236
9237 Self {
9238 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
9239 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
9240 visible: show_scrollbars,
9241 }
9242 }
9243
9244 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
9245 [
9246 (&self.vertical, ScrollbarAxis::Vertical),
9247 (&self.horizontal, ScrollbarAxis::Horizontal),
9248 ]
9249 .into_iter()
9250 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
9251 }
9252
9253 /// Returns the currently hovered scrollbar axis, if any.
9254 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
9255 self.iter_scrollbars()
9256 .find(|s| s.0.hitbox.is_hovered(window))
9257 }
9258}
9259
9260#[derive(Clone)]
9261struct ScrollbarLayout {
9262 hitbox: Hitbox,
9263 visible_range: Range<f32>,
9264 text_unit_size: Pixels,
9265 thumb_bounds: Option<Bounds<Pixels>>,
9266 thumb_state: ScrollbarThumbState,
9267}
9268
9269impl ScrollbarLayout {
9270 const BORDER_WIDTH: Pixels = px(1.0);
9271 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
9272 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
9273 const MIN_THUMB_SIZE: Pixels = px(25.0);
9274
9275 fn new(
9276 scrollbar_track_hitbox: Hitbox,
9277 viewport_size: Pixels,
9278 scroll_range: Pixels,
9279 glyph_space: Pixels,
9280 content_offset: Pixels,
9281 scroll_position: f32,
9282 show_thumb: bool,
9283 axis: ScrollbarAxis,
9284 ) -> Self {
9285 let track_bounds = scrollbar_track_hitbox.bounds;
9286 // The length of the track available to the scrollbar thumb. We deliberately
9287 // exclude the content size here so that the thumb aligns with the content.
9288 let track_length = track_bounds.size.along(axis) - content_offset;
9289
9290 Self::new_with_hitbox_and_track_length(
9291 scrollbar_track_hitbox,
9292 track_length,
9293 viewport_size,
9294 scroll_range,
9295 glyph_space,
9296 content_offset,
9297 scroll_position,
9298 show_thumb,
9299 axis,
9300 )
9301 }
9302
9303 fn for_minimap(
9304 minimap_track_hitbox: Hitbox,
9305 visible_lines: f32,
9306 total_editor_lines: f32,
9307 minimap_line_height: Pixels,
9308 scroll_position: f32,
9309 minimap_scroll_top: f32,
9310 show_thumb: bool,
9311 ) -> Self {
9312 // The scrollbar thumb size is calculated as
9313 // (visible_content/total_content) × scrollbar_track_length.
9314 //
9315 // For the minimap's thumb layout, we leverage this by setting the
9316 // scrollbar track length to the entire document size (using minimap line
9317 // height). This creates a thumb that exactly represents the editor
9318 // viewport scaled to minimap proportions.
9319 //
9320 // We adjust the thumb position relative to `minimap_scroll_top` to
9321 // accommodate for the deliberately oversized track.
9322 //
9323 // This approach ensures that the minimap thumb accurately reflects the
9324 // editor's current scroll position whilst nicely synchronizing the minimap
9325 // thumb and scrollbar thumb.
9326 let scroll_range = total_editor_lines * minimap_line_height;
9327 let viewport_size = visible_lines * minimap_line_height;
9328
9329 let track_top_offset = -minimap_scroll_top * minimap_line_height;
9330
9331 Self::new_with_hitbox_and_track_length(
9332 minimap_track_hitbox,
9333 scroll_range,
9334 viewport_size,
9335 scroll_range,
9336 minimap_line_height,
9337 track_top_offset,
9338 scroll_position,
9339 show_thumb,
9340 ScrollbarAxis::Vertical,
9341 )
9342 }
9343
9344 fn new_with_hitbox_and_track_length(
9345 scrollbar_track_hitbox: Hitbox,
9346 track_length: Pixels,
9347 viewport_size: Pixels,
9348 scroll_range: Pixels,
9349 glyph_space: Pixels,
9350 content_offset: Pixels,
9351 scroll_position: f32,
9352 show_thumb: bool,
9353 axis: ScrollbarAxis,
9354 ) -> Self {
9355 let text_units_per_page = viewport_size / glyph_space;
9356 let visible_range = scroll_position..scroll_position + text_units_per_page;
9357 let total_text_units = scroll_range / glyph_space;
9358
9359 let thumb_percentage = text_units_per_page / total_text_units;
9360 let thumb_size = (track_length * thumb_percentage)
9361 .max(ScrollbarLayout::MIN_THUMB_SIZE)
9362 .min(track_length);
9363
9364 let text_unit_divisor = (total_text_units - text_units_per_page).max(0.);
9365
9366 let content_larger_than_viewport = text_unit_divisor > 0.;
9367
9368 let text_unit_size = if content_larger_than_viewport {
9369 (track_length - thumb_size) / text_unit_divisor
9370 } else {
9371 glyph_space
9372 };
9373
9374 let thumb_bounds = (show_thumb && content_larger_than_viewport).then(|| {
9375 Self::thumb_bounds(
9376 &scrollbar_track_hitbox,
9377 content_offset,
9378 visible_range.start,
9379 text_unit_size,
9380 thumb_size,
9381 axis,
9382 )
9383 });
9384
9385 ScrollbarLayout {
9386 hitbox: scrollbar_track_hitbox,
9387 visible_range,
9388 text_unit_size,
9389 thumb_bounds,
9390 thumb_state: Default::default(),
9391 }
9392 }
9393
9394 fn with_thumb_state(self, thumb_state: Option<ScrollbarThumbState>) -> Self {
9395 if let Some(thumb_state) = thumb_state {
9396 Self {
9397 thumb_state,
9398 ..self
9399 }
9400 } else {
9401 self
9402 }
9403 }
9404
9405 fn thumb_bounds(
9406 scrollbar_track: &Hitbox,
9407 content_offset: Pixels,
9408 visible_range_start: f32,
9409 text_unit_size: Pixels,
9410 thumb_size: Pixels,
9411 axis: ScrollbarAxis,
9412 ) -> Bounds<Pixels> {
9413 let thumb_origin = scrollbar_track.origin.apply_along(axis, |origin| {
9414 origin + content_offset + visible_range_start * text_unit_size
9415 });
9416 Bounds::new(
9417 thumb_origin,
9418 scrollbar_track.size.apply_along(axis, |_| thumb_size),
9419 )
9420 }
9421
9422 fn thumb_hovered(&self, position: &gpui::Point<Pixels>) -> bool {
9423 self.thumb_bounds
9424 .is_some_and(|bounds| bounds.contains(position))
9425 }
9426
9427 fn marker_quads_for_ranges(
9428 &self,
9429 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
9430 column: Option<usize>,
9431 ) -> Vec<PaintQuad> {
9432 struct MinMax {
9433 min: Pixels,
9434 max: Pixels,
9435 }
9436 let (x_range, height_limit) = if let Some(column) = column {
9437 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
9438 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
9439 let end = start + column_width;
9440 (
9441 Range { start, end },
9442 MinMax {
9443 min: Self::MIN_MARKER_HEIGHT,
9444 max: px(f32::MAX),
9445 },
9446 )
9447 } else {
9448 (
9449 Range {
9450 start: Self::BORDER_WIDTH,
9451 end: self.hitbox.size.width,
9452 },
9453 MinMax {
9454 min: Self::LINE_MARKER_HEIGHT,
9455 max: Self::LINE_MARKER_HEIGHT,
9456 },
9457 )
9458 };
9459
9460 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
9461 let mut pixel_ranges = row_ranges
9462 .into_iter()
9463 .map(|range| {
9464 let start_y = row_to_y(range.start);
9465 let end_y = row_to_y(range.end)
9466 + self
9467 .text_unit_size
9468 .max(height_limit.min)
9469 .min(height_limit.max);
9470 ColoredRange {
9471 start: start_y,
9472 end: end_y,
9473 color: range.color,
9474 }
9475 })
9476 .peekable();
9477
9478 let mut quads = Vec::new();
9479 while let Some(mut pixel_range) = pixel_ranges.next() {
9480 while let Some(next_pixel_range) = pixel_ranges.peek() {
9481 if pixel_range.end >= next_pixel_range.start - px(1.0)
9482 && pixel_range.color == next_pixel_range.color
9483 {
9484 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
9485 pixel_ranges.next();
9486 } else {
9487 break;
9488 }
9489 }
9490
9491 let bounds = Bounds::from_corners(
9492 point(x_range.start, pixel_range.start),
9493 point(x_range.end, pixel_range.end),
9494 );
9495 quads.push(quad(
9496 bounds,
9497 Corners::default(),
9498 pixel_range.color,
9499 Edges::default(),
9500 Hsla::transparent_black(),
9501 BorderStyle::default(),
9502 ));
9503 }
9504
9505 quads
9506 }
9507}
9508
9509struct MinimapLayout {
9510 pub minimap: AnyElement,
9511 pub thumb_layout: ScrollbarLayout,
9512 pub minimap_scroll_top: f32,
9513 pub minimap_line_height: Pixels,
9514 pub thumb_border_style: MinimapThumbBorder,
9515 pub max_scroll_top: f32,
9516}
9517
9518impl MinimapLayout {
9519 /// The minimum width of the minimap in columns. If the minimap is smaller than this, it will be hidden.
9520 const MINIMAP_MIN_WIDTH_COLUMNS: f32 = 20.;
9521 /// The minimap width as a percentage of the editor width.
9522 const MINIMAP_WIDTH_PCT: f32 = 0.15;
9523 /// Calculates the scroll top offset the minimap editor has to have based on the
9524 /// current scroll progress.
9525 fn calculate_minimap_top_offset(
9526 document_lines: f32,
9527 visible_editor_lines: f32,
9528 visible_minimap_lines: f32,
9529 scroll_position: f32,
9530 ) -> f32 {
9531 let non_visible_document_lines = (document_lines - visible_editor_lines).max(0.);
9532 if non_visible_document_lines == 0. {
9533 0.
9534 } else {
9535 let scroll_percentage = (scroll_position / non_visible_document_lines).clamp(0., 1.);
9536 scroll_percentage * (document_lines - visible_minimap_lines).max(0.)
9537 }
9538 }
9539}
9540
9541struct CreaseTrailerLayout {
9542 element: AnyElement,
9543 bounds: Bounds<Pixels>,
9544}
9545
9546pub(crate) struct PositionMap {
9547 pub size: Size<Pixels>,
9548 pub line_height: Pixels,
9549 pub scroll_pixel_position: gpui::Point<Pixels>,
9550 pub scroll_max: gpui::Point<f32>,
9551 pub em_width: Pixels,
9552 pub em_advance: Pixels,
9553 pub visible_row_range: Range<DisplayRow>,
9554 pub line_layouts: Vec<LineWithInvisibles>,
9555 pub snapshot: EditorSnapshot,
9556 pub text_hitbox: Hitbox,
9557 pub gutter_hitbox: Hitbox,
9558 pub inline_blame_bounds: Option<(Bounds<Pixels>, BlameEntry)>,
9559 pub display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
9560 pub diff_hunk_control_bounds: Vec<(DisplayRow, Bounds<Pixels>)>,
9561}
9562
9563#[derive(Debug, Copy, Clone)]
9564pub struct PointForPosition {
9565 pub previous_valid: DisplayPoint,
9566 pub next_valid: DisplayPoint,
9567 pub exact_unclipped: DisplayPoint,
9568 pub column_overshoot_after_line_end: u32,
9569}
9570
9571impl PointForPosition {
9572 pub fn as_valid(&self) -> Option<DisplayPoint> {
9573 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
9574 Some(self.previous_valid)
9575 } else {
9576 None
9577 }
9578 }
9579
9580 pub fn intersects_selection(&self, selection: &Selection<DisplayPoint>) -> bool {
9581 let Some(valid_point) = self.as_valid() else {
9582 return false;
9583 };
9584 let range = selection.range();
9585
9586 let candidate_row = valid_point.row();
9587 let candidate_col = valid_point.column();
9588
9589 let start_row = range.start.row();
9590 let start_col = range.start.column();
9591 let end_row = range.end.row();
9592 let end_col = range.end.column();
9593
9594 if candidate_row < start_row || candidate_row > end_row {
9595 false
9596 } else if start_row == end_row {
9597 candidate_col >= start_col && candidate_col < end_col
9598 } else {
9599 if candidate_row == start_row {
9600 candidate_col >= start_col
9601 } else if candidate_row == end_row {
9602 candidate_col < end_col
9603 } else {
9604 true
9605 }
9606 }
9607 }
9608}
9609
9610impl PositionMap {
9611 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
9612 let text_bounds = self.text_hitbox.bounds;
9613 let scroll_position = self.snapshot.scroll_position();
9614 let position = position - text_bounds.origin;
9615 let y = position.y.max(px(0.)).min(self.size.height);
9616 let x = position.x + (scroll_position.x * self.em_advance);
9617 let row = ((y / self.line_height) + scroll_position.y) as u32;
9618
9619 let (column, x_overshoot_after_line_end) = if let Some(line) = self
9620 .line_layouts
9621 .get(row as usize - scroll_position.y as usize)
9622 {
9623 if let Some(ix) = line.index_for_x(x) {
9624 (ix as u32, px(0.))
9625 } else {
9626 (line.len as u32, px(0.).max(x - line.width))
9627 }
9628 } else {
9629 (0, x)
9630 };
9631
9632 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
9633 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
9634 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
9635
9636 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
9637 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
9638 PointForPosition {
9639 previous_valid,
9640 next_valid,
9641 exact_unclipped,
9642 column_overshoot_after_line_end,
9643 }
9644 }
9645}
9646
9647struct BlockLayout {
9648 id: BlockId,
9649 x_offset: Pixels,
9650 row: Option<DisplayRow>,
9651 element: AnyElement,
9652 available_space: Size<AvailableSpace>,
9653 style: BlockStyle,
9654 overlaps_gutter: bool,
9655 is_buffer_header: bool,
9656}
9657
9658pub fn layout_line(
9659 row: DisplayRow,
9660 snapshot: &EditorSnapshot,
9661 style: &EditorStyle,
9662 text_width: Pixels,
9663 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
9664 window: &mut Window,
9665 cx: &mut App,
9666) -> LineWithInvisibles {
9667 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
9668 LineWithInvisibles::from_chunks(
9669 chunks,
9670 &style,
9671 MAX_LINE_LEN,
9672 1,
9673 &snapshot.mode,
9674 text_width,
9675 is_row_soft_wrapped,
9676 window,
9677 cx,
9678 )
9679 .pop()
9680 .unwrap()
9681}
9682
9683#[derive(Debug)]
9684pub struct IndentGuideLayout {
9685 origin: gpui::Point<Pixels>,
9686 length: Pixels,
9687 single_indent_width: Pixels,
9688 depth: u32,
9689 active: bool,
9690 settings: IndentGuideSettings,
9691}
9692
9693pub struct CursorLayout {
9694 origin: gpui::Point<Pixels>,
9695 block_width: Pixels,
9696 line_height: Pixels,
9697 color: Hsla,
9698 shape: CursorShape,
9699 block_text: Option<ShapedLine>,
9700 cursor_name: Option<AnyElement>,
9701}
9702
9703#[derive(Debug)]
9704pub struct CursorName {
9705 string: SharedString,
9706 color: Hsla,
9707 is_top_row: bool,
9708}
9709
9710impl CursorLayout {
9711 pub fn new(
9712 origin: gpui::Point<Pixels>,
9713 block_width: Pixels,
9714 line_height: Pixels,
9715 color: Hsla,
9716 shape: CursorShape,
9717 block_text: Option<ShapedLine>,
9718 ) -> CursorLayout {
9719 CursorLayout {
9720 origin,
9721 block_width,
9722 line_height,
9723 color,
9724 shape,
9725 block_text,
9726 cursor_name: None,
9727 }
9728 }
9729
9730 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
9731 Bounds {
9732 origin: self.origin + origin,
9733 size: size(self.block_width, self.line_height),
9734 }
9735 }
9736
9737 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
9738 match self.shape {
9739 CursorShape::Bar => Bounds {
9740 origin: self.origin + origin,
9741 size: size(px(2.0), self.line_height),
9742 },
9743 CursorShape::Block | CursorShape::Hollow => Bounds {
9744 origin: self.origin + origin,
9745 size: size(self.block_width, self.line_height),
9746 },
9747 CursorShape::Underline => Bounds {
9748 origin: self.origin
9749 + origin
9750 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
9751 size: size(self.block_width, px(2.0)),
9752 },
9753 }
9754 }
9755
9756 pub fn layout(
9757 &mut self,
9758 origin: gpui::Point<Pixels>,
9759 cursor_name: Option<CursorName>,
9760 window: &mut Window,
9761 cx: &mut App,
9762 ) {
9763 if let Some(cursor_name) = cursor_name {
9764 let bounds = self.bounds(origin);
9765 let text_size = self.line_height / 1.5;
9766
9767 let name_origin = if cursor_name.is_top_row {
9768 point(bounds.right() - px(1.), bounds.top())
9769 } else {
9770 match self.shape {
9771 CursorShape::Bar => point(
9772 bounds.right() - px(2.),
9773 bounds.top() - text_size / 2. - px(1.),
9774 ),
9775 _ => point(
9776 bounds.right() - px(1.),
9777 bounds.top() - text_size / 2. - px(1.),
9778 ),
9779 }
9780 };
9781 let mut name_element = div()
9782 .bg(self.color)
9783 .text_size(text_size)
9784 .px_0p5()
9785 .line_height(text_size + px(2.))
9786 .text_color(cursor_name.color)
9787 .child(cursor_name.string.clone())
9788 .into_any_element();
9789
9790 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
9791
9792 self.cursor_name = Some(name_element);
9793 }
9794 }
9795
9796 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
9797 let bounds = self.bounds(origin);
9798
9799 //Draw background or border quad
9800 let cursor = if matches!(self.shape, CursorShape::Hollow) {
9801 outline(bounds, self.color, BorderStyle::Solid)
9802 } else {
9803 fill(bounds, self.color)
9804 };
9805
9806 if let Some(name) = &mut self.cursor_name {
9807 name.paint(window, cx);
9808 }
9809
9810 window.paint_quad(cursor);
9811
9812 if let Some(block_text) = &self.block_text {
9813 block_text
9814 .paint(self.origin + origin, self.line_height, window, cx)
9815 .log_err();
9816 }
9817 }
9818
9819 pub fn shape(&self) -> CursorShape {
9820 self.shape
9821 }
9822}
9823
9824#[derive(Debug)]
9825pub struct HighlightedRange {
9826 pub start_y: Pixels,
9827 pub line_height: Pixels,
9828 pub lines: Vec<HighlightedRangeLine>,
9829 pub color: Hsla,
9830 pub corner_radius: Pixels,
9831}
9832
9833#[derive(Debug)]
9834pub struct HighlightedRangeLine {
9835 pub start_x: Pixels,
9836 pub end_x: Pixels,
9837}
9838
9839impl HighlightedRange {
9840 pub fn paint(&self, fill: bool, bounds: Bounds<Pixels>, window: &mut Window) {
9841 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
9842 self.paint_lines(self.start_y, &self.lines[0..1], fill, bounds, window);
9843 self.paint_lines(
9844 self.start_y + self.line_height,
9845 &self.lines[1..],
9846 fill,
9847 bounds,
9848 window,
9849 );
9850 } else {
9851 self.paint_lines(self.start_y, &self.lines, fill, bounds, window);
9852 }
9853 }
9854
9855 fn paint_lines(
9856 &self,
9857 start_y: Pixels,
9858 lines: &[HighlightedRangeLine],
9859 fill: bool,
9860 _bounds: Bounds<Pixels>,
9861 window: &mut Window,
9862 ) {
9863 if lines.is_empty() {
9864 return;
9865 }
9866
9867 let first_line = lines.first().unwrap();
9868 let last_line = lines.last().unwrap();
9869
9870 let first_top_left = point(first_line.start_x, start_y);
9871 let first_top_right = point(first_line.end_x, start_y);
9872
9873 let curve_height = point(Pixels::ZERO, self.corner_radius);
9874 let curve_width = |start_x: Pixels, end_x: Pixels| {
9875 let max = (end_x - start_x) / 2.;
9876 let width = if max < self.corner_radius {
9877 max
9878 } else {
9879 self.corner_radius
9880 };
9881
9882 point(width, Pixels::ZERO)
9883 };
9884
9885 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
9886 let mut builder = if fill {
9887 gpui::PathBuilder::fill()
9888 } else {
9889 gpui::PathBuilder::stroke(px(1.))
9890 };
9891 builder.move_to(first_top_right - top_curve_width);
9892 builder.curve_to(first_top_right + curve_height, first_top_right);
9893
9894 let mut iter = lines.iter().enumerate().peekable();
9895 while let Some((ix, line)) = iter.next() {
9896 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
9897
9898 if let Some((_, next_line)) = iter.peek() {
9899 let next_top_right = point(next_line.end_x, bottom_right.y);
9900
9901 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
9902 Ordering::Equal => {
9903 builder.line_to(bottom_right);
9904 }
9905 Ordering::Less => {
9906 let curve_width = curve_width(next_top_right.x, bottom_right.x);
9907 builder.line_to(bottom_right - curve_height);
9908 if self.corner_radius > Pixels::ZERO {
9909 builder.curve_to(bottom_right - curve_width, bottom_right);
9910 }
9911 builder.line_to(next_top_right + curve_width);
9912 if self.corner_radius > Pixels::ZERO {
9913 builder.curve_to(next_top_right + curve_height, next_top_right);
9914 }
9915 }
9916 Ordering::Greater => {
9917 let curve_width = curve_width(bottom_right.x, next_top_right.x);
9918 builder.line_to(bottom_right - curve_height);
9919 if self.corner_radius > Pixels::ZERO {
9920 builder.curve_to(bottom_right + curve_width, bottom_right);
9921 }
9922 builder.line_to(next_top_right - curve_width);
9923 if self.corner_radius > Pixels::ZERO {
9924 builder.curve_to(next_top_right + curve_height, next_top_right);
9925 }
9926 }
9927 }
9928 } else {
9929 let curve_width = curve_width(line.start_x, line.end_x);
9930 builder.line_to(bottom_right - curve_height);
9931 if self.corner_radius > Pixels::ZERO {
9932 builder.curve_to(bottom_right - curve_width, bottom_right);
9933 }
9934
9935 let bottom_left = point(line.start_x, bottom_right.y);
9936 builder.line_to(bottom_left + curve_width);
9937 if self.corner_radius > Pixels::ZERO {
9938 builder.curve_to(bottom_left - curve_height, bottom_left);
9939 }
9940 }
9941 }
9942
9943 if first_line.start_x > last_line.start_x {
9944 let curve_width = curve_width(last_line.start_x, first_line.start_x);
9945 let second_top_left = point(last_line.start_x, start_y + self.line_height);
9946 builder.line_to(second_top_left + curve_height);
9947 if self.corner_radius > Pixels::ZERO {
9948 builder.curve_to(second_top_left + curve_width, second_top_left);
9949 }
9950 let first_bottom_left = point(first_line.start_x, second_top_left.y);
9951 builder.line_to(first_bottom_left - curve_width);
9952 if self.corner_radius > Pixels::ZERO {
9953 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
9954 }
9955 }
9956
9957 builder.line_to(first_top_left + curve_height);
9958 if self.corner_radius > Pixels::ZERO {
9959 builder.curve_to(first_top_left + top_curve_width, first_top_left);
9960 }
9961 builder.line_to(first_top_right - top_curve_width);
9962
9963 if let Ok(path) = builder.build() {
9964 window.paint_path(path, self.color);
9965 }
9966 }
9967}
9968
9969enum CursorPopoverType {
9970 CodeContextMenu,
9971 EditPrediction,
9972}
9973
9974pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
9975 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
9976}
9977
9978fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
9979 (delta.pow(1.2) / 300.0).into()
9980}
9981
9982pub fn register_action<T: Action>(
9983 editor: &Entity<Editor>,
9984 window: &mut Window,
9985 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
9986) {
9987 let editor = editor.clone();
9988 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
9989 let action = action.downcast_ref().unwrap();
9990 if phase == DispatchPhase::Bubble {
9991 editor.update(cx, |editor, cx| {
9992 listener(editor, action, window, cx);
9993 })
9994 }
9995 })
9996}
9997
9998fn compute_auto_height_layout(
9999 editor: &mut Editor,
10000 min_lines: usize,
10001 max_lines: Option<usize>,
10002 max_line_number_width: Pixels,
10003 known_dimensions: Size<Option<Pixels>>,
10004 available_width: AvailableSpace,
10005 window: &mut Window,
10006 cx: &mut Context<Editor>,
10007) -> Option<Size<Pixels>> {
10008 let width = known_dimensions.width.or({
10009 if let AvailableSpace::Definite(available_width) = available_width {
10010 Some(available_width)
10011 } else {
10012 None
10013 }
10014 })?;
10015 if let Some(height) = known_dimensions.height {
10016 return Some(size(width, height));
10017 }
10018
10019 let style = editor.style.as_ref().unwrap();
10020 let font_id = window.text_system().resolve_font(&style.text.font());
10021 let font_size = style.text.font_size.to_pixels(window.rem_size());
10022 let line_height = style.text.line_height_in_pixels(window.rem_size());
10023 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
10024
10025 let mut snapshot = editor.snapshot(window, cx);
10026 let gutter_dimensions = snapshot
10027 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
10028 .or_else(|| {
10029 editor
10030 .offset_content
10031 .then(|| GutterDimensions::default_with_margin(font_id, font_size, cx))
10032 })
10033 .unwrap_or_default();
10034
10035 editor.gutter_dimensions = gutter_dimensions;
10036 let text_width = width - gutter_dimensions.width;
10037 let overscroll = size(em_width, px(0.));
10038
10039 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
10040 if !matches!(editor.soft_wrap_mode(cx), SoftWrap::None) {
10041 if editor.set_wrap_width(Some(editor_width), cx) {
10042 snapshot = editor.snapshot(window, cx);
10043 }
10044 }
10045
10046 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
10047
10048 let min_height = line_height * min_lines as f32;
10049 let content_height = scroll_height.max(min_height);
10050
10051 let final_height = if let Some(max_lines) = max_lines {
10052 let max_height = line_height * max_lines as f32;
10053 content_height.min(max_height)
10054 } else {
10055 content_height
10056 };
10057
10058 Some(size(width, final_height))
10059}
10060
10061#[cfg(test)]
10062mod tests {
10063 use super::*;
10064 use crate::{
10065 Editor, MultiBuffer, SelectionEffects,
10066 display_map::{BlockPlacement, BlockProperties},
10067 editor_tests::{init_test, update_test_language_settings},
10068 };
10069 use gpui::{TestAppContext, VisualTestContext};
10070 use language::language_settings;
10071 use log::info;
10072 use std::num::NonZeroU32;
10073 use util::test::sample_text;
10074
10075 #[gpui::test]
10076 fn test_shape_line_numbers(cx: &mut TestAppContext) {
10077 init_test(cx, |_| {});
10078 let window = cx.add_window(|window, cx| {
10079 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
10080 Editor::new(EditorMode::full(), buffer, None, window, cx)
10081 });
10082
10083 let editor = window.root(cx).unwrap();
10084 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
10085 let line_height = window
10086 .update(cx, |_, window, _| {
10087 style.text.line_height_in_pixels(window.rem_size())
10088 })
10089 .unwrap();
10090 let element = EditorElement::new(&editor, style);
10091 let snapshot = window
10092 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
10093 .unwrap();
10094
10095 let layouts = cx
10096 .update_window(*window, |_, window, cx| {
10097 element.layout_line_numbers(
10098 None,
10099 GutterDimensions {
10100 left_padding: Pixels::ZERO,
10101 right_padding: Pixels::ZERO,
10102 width: px(30.0),
10103 margin: Pixels::ZERO,
10104 git_blame_entries_width: None,
10105 },
10106 line_height,
10107 gpui::Point::default(),
10108 DisplayRow(0)..DisplayRow(6),
10109 &(0..6)
10110 .map(|row| RowInfo {
10111 buffer_row: Some(row),
10112 ..Default::default()
10113 })
10114 .collect::<Vec<_>>(),
10115 &BTreeMap::default(),
10116 Some(DisplayPoint::new(DisplayRow(0), 0)),
10117 &snapshot,
10118 window,
10119 cx,
10120 )
10121 })
10122 .unwrap();
10123 assert_eq!(layouts.len(), 6);
10124
10125 let relative_rows = window
10126 .update(cx, |editor, window, cx| {
10127 let snapshot = editor.snapshot(window, cx);
10128 element.calculate_relative_line_numbers(
10129 &snapshot,
10130 &(DisplayRow(0)..DisplayRow(6)),
10131 Some(DisplayRow(3)),
10132 )
10133 })
10134 .unwrap();
10135 assert_eq!(relative_rows[&DisplayRow(0)], 3);
10136 assert_eq!(relative_rows[&DisplayRow(1)], 2);
10137 assert_eq!(relative_rows[&DisplayRow(2)], 1);
10138 // current line has no relative number
10139 assert_eq!(relative_rows[&DisplayRow(4)], 1);
10140 assert_eq!(relative_rows[&DisplayRow(5)], 2);
10141
10142 // works if cursor is before screen
10143 let relative_rows = window
10144 .update(cx, |editor, window, cx| {
10145 let snapshot = editor.snapshot(window, cx);
10146 element.calculate_relative_line_numbers(
10147 &snapshot,
10148 &(DisplayRow(3)..DisplayRow(6)),
10149 Some(DisplayRow(1)),
10150 )
10151 })
10152 .unwrap();
10153 assert_eq!(relative_rows.len(), 3);
10154 assert_eq!(relative_rows[&DisplayRow(3)], 2);
10155 assert_eq!(relative_rows[&DisplayRow(4)], 3);
10156 assert_eq!(relative_rows[&DisplayRow(5)], 4);
10157
10158 // works if cursor is after screen
10159 let relative_rows = window
10160 .update(cx, |editor, window, cx| {
10161 let snapshot = editor.snapshot(window, cx);
10162 element.calculate_relative_line_numbers(
10163 &snapshot,
10164 &(DisplayRow(0)..DisplayRow(3)),
10165 Some(DisplayRow(6)),
10166 )
10167 })
10168 .unwrap();
10169 assert_eq!(relative_rows.len(), 3);
10170 assert_eq!(relative_rows[&DisplayRow(0)], 5);
10171 assert_eq!(relative_rows[&DisplayRow(1)], 4);
10172 assert_eq!(relative_rows[&DisplayRow(2)], 3);
10173 }
10174
10175 #[gpui::test]
10176 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
10177 init_test(cx, |_| {});
10178
10179 let window = cx.add_window(|window, cx| {
10180 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
10181 Editor::new(EditorMode::full(), buffer, None, window, cx)
10182 });
10183 let cx = &mut VisualTestContext::from_window(*window, cx);
10184 let editor = window.root(cx).unwrap();
10185 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10186
10187 window
10188 .update(cx, |editor, window, cx| {
10189 editor.cursor_shape = CursorShape::Block;
10190 editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
10191 s.select_ranges([
10192 Point::new(0, 0)..Point::new(1, 0),
10193 Point::new(3, 2)..Point::new(3, 3),
10194 Point::new(5, 6)..Point::new(6, 0),
10195 ]);
10196 });
10197 })
10198 .unwrap();
10199
10200 let (_, state) = cx.draw(
10201 point(px(500.), px(500.)),
10202 size(px(500.), px(500.)),
10203 |_, _| EditorElement::new(&editor, style),
10204 );
10205
10206 assert_eq!(state.selections.len(), 1);
10207 let local_selections = &state.selections[0].1;
10208 assert_eq!(local_selections.len(), 3);
10209 // moves cursor back one line
10210 assert_eq!(
10211 local_selections[0].head,
10212 DisplayPoint::new(DisplayRow(0), 6)
10213 );
10214 assert_eq!(
10215 local_selections[0].range,
10216 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
10217 );
10218
10219 // moves cursor back one column
10220 assert_eq!(
10221 local_selections[1].range,
10222 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
10223 );
10224 assert_eq!(
10225 local_selections[1].head,
10226 DisplayPoint::new(DisplayRow(3), 2)
10227 );
10228
10229 // leaves cursor on the max point
10230 assert_eq!(
10231 local_selections[2].range,
10232 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
10233 );
10234 assert_eq!(
10235 local_selections[2].head,
10236 DisplayPoint::new(DisplayRow(6), 0)
10237 );
10238
10239 // active lines does not include 1 (even though the range of the selection does)
10240 assert_eq!(
10241 state.active_rows.keys().cloned().collect::<Vec<_>>(),
10242 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
10243 );
10244 }
10245
10246 #[gpui::test]
10247 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
10248 init_test(cx, |_| {});
10249
10250 let window = cx.add_window(|window, cx| {
10251 let buffer = MultiBuffer::build_simple("", cx);
10252 Editor::new(EditorMode::full(), buffer, None, window, cx)
10253 });
10254 let cx = &mut VisualTestContext::from_window(*window, cx);
10255 let editor = window.root(cx).unwrap();
10256 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10257 window
10258 .update(cx, |editor, window, cx| {
10259 editor.set_placeholder_text("hello", cx);
10260 editor.insert_blocks(
10261 [BlockProperties {
10262 style: BlockStyle::Fixed,
10263 placement: BlockPlacement::Above(Anchor::min()),
10264 height: Some(3),
10265 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
10266 priority: 0,
10267 render_in_minimap: true,
10268 }],
10269 None,
10270 cx,
10271 );
10272
10273 // Blur the editor so that it displays placeholder text.
10274 window.blur();
10275 })
10276 .unwrap();
10277
10278 let (_, state) = cx.draw(
10279 point(px(500.), px(500.)),
10280 size(px(500.), px(500.)),
10281 |_, _| EditorElement::new(&editor, style),
10282 );
10283 assert_eq!(state.position_map.line_layouts.len(), 4);
10284 assert_eq!(state.line_numbers.len(), 1);
10285 assert_eq!(
10286 state
10287 .line_numbers
10288 .get(&MultiBufferRow(0))
10289 .map(|line_number| line_number.shaped_line.text.as_ref()),
10290 Some("1")
10291 );
10292 }
10293
10294 #[gpui::test]
10295 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
10296 const TAB_SIZE: u32 = 4;
10297
10298 let input_text = "\t \t|\t| a b";
10299 let expected_invisibles = vec![
10300 Invisible::Tab {
10301 line_start_offset: 0,
10302 line_end_offset: TAB_SIZE as usize,
10303 },
10304 Invisible::Whitespace {
10305 line_offset: TAB_SIZE as usize,
10306 },
10307 Invisible::Tab {
10308 line_start_offset: TAB_SIZE as usize + 1,
10309 line_end_offset: TAB_SIZE as usize * 2,
10310 },
10311 Invisible::Tab {
10312 line_start_offset: TAB_SIZE as usize * 2 + 1,
10313 line_end_offset: TAB_SIZE as usize * 3,
10314 },
10315 Invisible::Whitespace {
10316 line_offset: TAB_SIZE as usize * 3 + 1,
10317 },
10318 Invisible::Whitespace {
10319 line_offset: TAB_SIZE as usize * 3 + 3,
10320 },
10321 ];
10322 assert_eq!(
10323 expected_invisibles.len(),
10324 input_text
10325 .chars()
10326 .filter(|initial_char| initial_char.is_whitespace())
10327 .count(),
10328 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
10329 );
10330
10331 for show_line_numbers in [true, false] {
10332 init_test(cx, |s| {
10333 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10334 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
10335 });
10336
10337 let actual_invisibles = collect_invisibles_from_new_editor(
10338 cx,
10339 EditorMode::full(),
10340 input_text,
10341 px(500.0),
10342 show_line_numbers,
10343 );
10344
10345 assert_eq!(expected_invisibles, actual_invisibles);
10346 }
10347 }
10348
10349 #[gpui::test]
10350 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
10351 init_test(cx, |s| {
10352 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10353 s.defaults.tab_size = NonZeroU32::new(4);
10354 });
10355
10356 for editor_mode_without_invisibles in [
10357 EditorMode::SingleLine { auto_width: false },
10358 EditorMode::AutoHeight {
10359 min_lines: 1,
10360 max_lines: Some(100),
10361 },
10362 ] {
10363 for show_line_numbers in [true, false] {
10364 let invisibles = collect_invisibles_from_new_editor(
10365 cx,
10366 editor_mode_without_invisibles.clone(),
10367 "\t\t\t| | a b",
10368 px(500.0),
10369 show_line_numbers,
10370 );
10371 assert!(
10372 invisibles.is_empty(),
10373 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
10374 );
10375 }
10376 }
10377 }
10378
10379 #[gpui::test]
10380 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
10381 let tab_size = 4;
10382 let input_text = "a\tbcd ".repeat(9);
10383 let repeated_invisibles = [
10384 Invisible::Tab {
10385 line_start_offset: 1,
10386 line_end_offset: tab_size as usize,
10387 },
10388 Invisible::Whitespace {
10389 line_offset: tab_size as usize + 3,
10390 },
10391 Invisible::Whitespace {
10392 line_offset: tab_size as usize + 4,
10393 },
10394 Invisible::Whitespace {
10395 line_offset: tab_size as usize + 5,
10396 },
10397 Invisible::Whitespace {
10398 line_offset: tab_size as usize + 6,
10399 },
10400 Invisible::Whitespace {
10401 line_offset: tab_size as usize + 7,
10402 },
10403 ];
10404 let expected_invisibles = std::iter::once(repeated_invisibles)
10405 .cycle()
10406 .take(9)
10407 .flatten()
10408 .collect::<Vec<_>>();
10409 assert_eq!(
10410 expected_invisibles.len(),
10411 input_text
10412 .chars()
10413 .filter(|initial_char| initial_char.is_whitespace())
10414 .count(),
10415 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
10416 );
10417 info!("Expected invisibles: {expected_invisibles:?}");
10418
10419 init_test(cx, |_| {});
10420
10421 // Put the same string with repeating whitespace pattern into editors of various size,
10422 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
10423 let resize_step = 10.0;
10424 let mut editor_width = 200.0;
10425 while editor_width <= 1000.0 {
10426 for show_line_numbers in [true, false] {
10427 update_test_language_settings(cx, |s| {
10428 s.defaults.tab_size = NonZeroU32::new(tab_size);
10429 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10430 s.defaults.preferred_line_length = Some(editor_width as u32);
10431 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
10432 });
10433
10434 let actual_invisibles = collect_invisibles_from_new_editor(
10435 cx,
10436 EditorMode::full(),
10437 &input_text,
10438 px(editor_width),
10439 show_line_numbers,
10440 );
10441
10442 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
10443 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
10444 let mut i = 0;
10445 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
10446 i = actual_index;
10447 match expected_invisibles.get(i) {
10448 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
10449 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
10450 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
10451 _ => {
10452 panic!(
10453 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
10454 )
10455 }
10456 },
10457 None => {
10458 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
10459 }
10460 }
10461 }
10462 let missing_expected_invisibles = &expected_invisibles[i + 1..];
10463 assert!(
10464 missing_expected_invisibles.is_empty(),
10465 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
10466 );
10467
10468 editor_width += resize_step;
10469 }
10470 }
10471 }
10472
10473 fn collect_invisibles_from_new_editor(
10474 cx: &mut TestAppContext,
10475 editor_mode: EditorMode,
10476 input_text: &str,
10477 editor_width: Pixels,
10478 show_line_numbers: bool,
10479 ) -> Vec<Invisible> {
10480 info!(
10481 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
10482 editor_width.0
10483 );
10484 let window = cx.add_window(|window, cx| {
10485 let buffer = MultiBuffer::build_simple(input_text, cx);
10486 Editor::new(editor_mode, buffer, None, window, cx)
10487 });
10488 let cx = &mut VisualTestContext::from_window(*window, cx);
10489 let editor = window.root(cx).unwrap();
10490
10491 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10492 window
10493 .update(cx, |editor, _, cx| {
10494 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
10495 editor.set_wrap_width(Some(editor_width), cx);
10496 editor.set_show_line_numbers(show_line_numbers, cx);
10497 })
10498 .unwrap();
10499 let (_, state) = cx.draw(
10500 point(px(500.), px(500.)),
10501 size(px(500.), px(500.)),
10502 |_, _| EditorElement::new(&editor, style),
10503 );
10504 state
10505 .position_map
10506 .line_layouts
10507 .iter()
10508 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
10509 .cloned()
10510 .collect()
10511 }
10512}