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 // TODO: add edit button on the right side of each row in the context menu
2833 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2834 deployed_from,
2835 actions,
2836 ..
2837 })) = editor.context_menu.borrow().as_ref()
2838 {
2839 actions
2840 .tasks()
2841 .map(|tasks| tasks.position.to_display_point(snapshot).row())
2842 .or_else(|| match deployed_from {
2843 Some(CodeActionSource::Indicator(row)) => Some(*row),
2844 _ => None,
2845 })
2846 } else {
2847 None
2848 };
2849
2850 let offset_range_start =
2851 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
2852
2853 let offset_range_end =
2854 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
2855
2856 editor
2857 .tasks
2858 .iter()
2859 .filter_map(|(_, tasks)| {
2860 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot);
2861 if multibuffer_point < offset_range_start
2862 || multibuffer_point > offset_range_end
2863 {
2864 return None;
2865 }
2866 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
2867 let buffer_folded = snapshot
2868 .buffer_snapshot
2869 .buffer_line_for_row(multibuffer_row)
2870 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
2871 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
2872 .unwrap_or(false);
2873 if buffer_folded {
2874 return None;
2875 }
2876
2877 if snapshot.is_line_folded(multibuffer_row) {
2878 // Skip folded indicators, unless it's the starting line of a fold.
2879 if multibuffer_row
2880 .0
2881 .checked_sub(1)
2882 .map_or(false, |previous_row| {
2883 snapshot.is_line_folded(MultiBufferRow(previous_row))
2884 })
2885 {
2886 return None;
2887 }
2888 }
2889
2890 let display_row = multibuffer_point.to_display_point(snapshot).row();
2891 if !range.contains(&display_row) {
2892 return None;
2893 }
2894 if row_infos
2895 .get((display_row - range.start).0 as usize)
2896 .is_some_and(|row_info| row_info.expand_info.is_some())
2897 {
2898 return None;
2899 }
2900
2901 let button = editor.render_run_indicator(
2902 &self.style,
2903 Some(display_row) == active_task_indicator_row,
2904 display_row,
2905 breakpoints.remove(&display_row),
2906 cx,
2907 );
2908
2909 let button = prepaint_gutter_button(
2910 button,
2911 display_row,
2912 line_height,
2913 gutter_dimensions,
2914 scroll_pixel_position,
2915 gutter_hitbox,
2916 display_hunks,
2917 window,
2918 cx,
2919 );
2920 Some(button)
2921 })
2922 .collect_vec()
2923 })
2924 }
2925
2926 fn layout_expand_toggles(
2927 &self,
2928 gutter_hitbox: &Hitbox,
2929 gutter_dimensions: GutterDimensions,
2930 em_width: Pixels,
2931 line_height: Pixels,
2932 scroll_position: gpui::Point<f32>,
2933 buffer_rows: &[RowInfo],
2934 window: &mut Window,
2935 cx: &mut App,
2936 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
2937 if self.editor.read(cx).disable_expand_excerpt_buttons {
2938 return vec![];
2939 }
2940
2941 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
2942
2943 let scroll_top = scroll_position.y * line_height;
2944
2945 let max_line_number_length = self
2946 .editor
2947 .read(cx)
2948 .buffer()
2949 .read(cx)
2950 .snapshot(cx)
2951 .widest_line_number()
2952 .ilog10()
2953 + 1;
2954
2955 let elements = buffer_rows
2956 .into_iter()
2957 .enumerate()
2958 .map(|(ix, row_info)| {
2959 let ExpandInfo {
2960 excerpt_id,
2961 direction,
2962 } = row_info.expand_info?;
2963
2964 let icon_name = match direction {
2965 ExpandExcerptDirection::Up => IconName::ExpandUp,
2966 ExpandExcerptDirection::Down => IconName::ExpandDown,
2967 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
2968 };
2969
2970 let git_gutter_width = Self::gutter_strip_width(line_height);
2971 let available_width = gutter_dimensions.left_padding - git_gutter_width;
2972
2973 let editor = self.editor.clone();
2974 let is_wide = max_line_number_length
2975 >= EditorSettings::get_global(cx).gutter.min_line_number_digits as u32
2976 && row_info
2977 .buffer_row
2978 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
2979 || gutter_dimensions.right_padding == px(0.);
2980
2981 let width = if is_wide {
2982 available_width - px(2.)
2983 } else {
2984 available_width + em_width - px(2.)
2985 };
2986
2987 let toggle = IconButton::new(("expand", ix), icon_name)
2988 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
2989 .selected_icon_color(Color::Custom(cx.theme().colors().editor_foreground))
2990 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
2991 .width(width.into())
2992 .on_click(move |_, window, cx| {
2993 editor.update(cx, |editor, cx| {
2994 editor.expand_excerpt(excerpt_id, direction, window, cx);
2995 });
2996 })
2997 .tooltip(Tooltip::for_action_title(
2998 "Expand Excerpt",
2999 &crate::actions::ExpandExcerpts::default(),
3000 ))
3001 .into_any_element();
3002
3003 let position = point(
3004 git_gutter_width + px(1.),
3005 ix as f32 * line_height - (scroll_top % line_height) + px(1.),
3006 );
3007 let origin = gutter_hitbox.origin + position;
3008
3009 Some((toggle, origin))
3010 })
3011 .collect();
3012
3013 elements
3014 }
3015
3016 fn calculate_relative_line_numbers(
3017 &self,
3018 snapshot: &EditorSnapshot,
3019 rows: &Range<DisplayRow>,
3020 relative_to: Option<DisplayRow>,
3021 ) -> HashMap<DisplayRow, DisplayRowDelta> {
3022 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
3023 let Some(relative_to) = relative_to else {
3024 return relative_rows;
3025 };
3026
3027 let start = rows.start.min(relative_to);
3028 let end = rows.end.max(relative_to);
3029
3030 let buffer_rows = snapshot
3031 .row_infos(start)
3032 .take(1 + end.minus(start) as usize)
3033 .collect::<Vec<_>>();
3034
3035 let head_idx = relative_to.minus(start);
3036 let mut delta = 1;
3037 let mut i = head_idx + 1;
3038 while i < buffer_rows.len() as u32 {
3039 if buffer_rows[i as usize].buffer_row.is_some() {
3040 if rows.contains(&DisplayRow(i + start.0)) {
3041 relative_rows.insert(DisplayRow(i + start.0), delta);
3042 }
3043 delta += 1;
3044 }
3045 i += 1;
3046 }
3047 delta = 1;
3048 i = head_idx.min(buffer_rows.len() as u32 - 1);
3049 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
3050 i -= 1;
3051 }
3052
3053 while i > 0 {
3054 i -= 1;
3055 if buffer_rows[i as usize].buffer_row.is_some() {
3056 if rows.contains(&DisplayRow(i + start.0)) {
3057 relative_rows.insert(DisplayRow(i + start.0), delta);
3058 }
3059 delta += 1;
3060 }
3061 }
3062
3063 relative_rows
3064 }
3065
3066 fn layout_line_numbers(
3067 &self,
3068 gutter_hitbox: Option<&Hitbox>,
3069 gutter_dimensions: GutterDimensions,
3070 line_height: Pixels,
3071 scroll_position: gpui::Point<f32>,
3072 rows: Range<DisplayRow>,
3073 buffer_rows: &[RowInfo],
3074 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3075 newest_selection_head: Option<DisplayPoint>,
3076 snapshot: &EditorSnapshot,
3077 window: &mut Window,
3078 cx: &mut App,
3079 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
3080 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
3081 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode.is_full()
3082 });
3083 if !include_line_numbers {
3084 return Arc::default();
3085 }
3086
3087 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
3088 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
3089 let newest = editor.selections.newest::<Point>(cx);
3090 SelectionLayout::new(
3091 newest,
3092 editor.selections.line_mode,
3093 editor.cursor_shape,
3094 &snapshot.display_snapshot,
3095 true,
3096 true,
3097 None,
3098 )
3099 .head
3100 });
3101 let is_relative = editor.should_use_relative_line_numbers(cx);
3102 (newest_selection_head, is_relative)
3103 });
3104
3105 let relative_to = if is_relative {
3106 Some(newest_selection_head.row())
3107 } else {
3108 None
3109 };
3110 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
3111 let mut line_number = String::new();
3112 let line_numbers = buffer_rows
3113 .into_iter()
3114 .enumerate()
3115 .flat_map(|(ix, row_info)| {
3116 let display_row = DisplayRow(rows.start.0 + ix as u32);
3117 line_number.clear();
3118 let non_relative_number = row_info.buffer_row? + 1;
3119 let number = relative_rows
3120 .get(&display_row)
3121 .unwrap_or(&non_relative_number);
3122 write!(&mut line_number, "{number}").unwrap();
3123 if row_info
3124 .diff_status
3125 .is_some_and(|status| status.is_deleted())
3126 {
3127 return None;
3128 }
3129
3130 let color = active_rows
3131 .get(&display_row)
3132 .map(|spec| {
3133 if spec.breakpoint {
3134 cx.theme().colors().debugger_accent
3135 } else {
3136 cx.theme().colors().editor_active_line_number
3137 }
3138 })
3139 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
3140 let shaped_line =
3141 self.shape_line_number(SharedString::from(&line_number), color, window);
3142 let scroll_top = scroll_position.y * line_height;
3143 let line_origin = gutter_hitbox.map(|hitbox| {
3144 hitbox.origin
3145 + point(
3146 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
3147 ix as f32 * line_height - (scroll_top % line_height),
3148 )
3149 });
3150
3151 #[cfg(not(test))]
3152 let hitbox = line_origin.map(|line_origin| {
3153 window.insert_hitbox(
3154 Bounds::new(line_origin, size(shaped_line.width, line_height)),
3155 HitboxBehavior::Normal,
3156 )
3157 });
3158 #[cfg(test)]
3159 let hitbox = {
3160 let _ = line_origin;
3161 None
3162 };
3163
3164 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
3165 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
3166 let line_number = LineNumberLayout {
3167 shaped_line,
3168 hitbox,
3169 };
3170 Some((multi_buffer_row, line_number))
3171 })
3172 .collect();
3173 Arc::new(line_numbers)
3174 }
3175
3176 fn layout_crease_toggles(
3177 &self,
3178 rows: Range<DisplayRow>,
3179 row_infos: &[RowInfo],
3180 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3181 snapshot: &EditorSnapshot,
3182 window: &mut Window,
3183 cx: &mut App,
3184 ) -> Vec<Option<AnyElement>> {
3185 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
3186 && snapshot.mode.is_full()
3187 && self.editor.read(cx).is_singleton(cx);
3188 if include_fold_statuses {
3189 row_infos
3190 .into_iter()
3191 .enumerate()
3192 .map(|(ix, info)| {
3193 if info.expand_info.is_some() {
3194 return None;
3195 }
3196 let row = info.multibuffer_row?;
3197 let display_row = DisplayRow(rows.start.0 + ix as u32);
3198 let active = active_rows.contains_key(&display_row);
3199
3200 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
3201 })
3202 .collect()
3203 } else {
3204 Vec::new()
3205 }
3206 }
3207
3208 fn layout_crease_trailers(
3209 &self,
3210 buffer_rows: impl IntoIterator<Item = RowInfo>,
3211 snapshot: &EditorSnapshot,
3212 window: &mut Window,
3213 cx: &mut App,
3214 ) -> Vec<Option<AnyElement>> {
3215 buffer_rows
3216 .into_iter()
3217 .map(|row_info| {
3218 if row_info.expand_info.is_some() {
3219 return None;
3220 }
3221 if let Some(row) = row_info.multibuffer_row {
3222 snapshot.render_crease_trailer(row, window, cx)
3223 } else {
3224 None
3225 }
3226 })
3227 .collect()
3228 }
3229
3230 fn layout_lines(
3231 rows: Range<DisplayRow>,
3232 snapshot: &EditorSnapshot,
3233 style: &EditorStyle,
3234 editor_width: Pixels,
3235 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3236 window: &mut Window,
3237 cx: &mut App,
3238 ) -> Vec<LineWithInvisibles> {
3239 if rows.start >= rows.end {
3240 return Vec::new();
3241 }
3242
3243 // Show the placeholder when the editor is empty
3244 if snapshot.is_empty() {
3245 let font_size = style.text.font_size.to_pixels(window.rem_size());
3246 let placeholder_color = cx.theme().colors().text_placeholder;
3247 let placeholder_text = snapshot.placeholder_text();
3248
3249 let placeholder_lines = placeholder_text
3250 .as_ref()
3251 .map_or("", AsRef::as_ref)
3252 .split('\n')
3253 .skip(rows.start.0 as usize)
3254 .chain(iter::repeat(""))
3255 .take(rows.len());
3256 placeholder_lines
3257 .map(move |line| {
3258 let run = TextRun {
3259 len: line.len(),
3260 font: style.text.font(),
3261 color: placeholder_color,
3262 background_color: None,
3263 underline: None,
3264 strikethrough: None,
3265 };
3266 let line =
3267 window
3268 .text_system()
3269 .shape_line(line.to_string().into(), font_size, &[run]);
3270 LineWithInvisibles {
3271 width: line.width,
3272 len: line.len,
3273 fragments: smallvec![LineFragment::Text(line)],
3274 invisibles: Vec::new(),
3275 font_size,
3276 }
3277 })
3278 .collect()
3279 } else {
3280 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
3281 LineWithInvisibles::from_chunks(
3282 chunks,
3283 &style,
3284 MAX_LINE_LEN,
3285 rows.len(),
3286 &snapshot.mode,
3287 editor_width,
3288 is_row_soft_wrapped,
3289 window,
3290 cx,
3291 )
3292 }
3293 }
3294
3295 fn prepaint_lines(
3296 &self,
3297 start_row: DisplayRow,
3298 line_layouts: &mut [LineWithInvisibles],
3299 line_height: Pixels,
3300 scroll_pixel_position: gpui::Point<Pixels>,
3301 content_origin: gpui::Point<Pixels>,
3302 window: &mut Window,
3303 cx: &mut App,
3304 ) -> SmallVec<[AnyElement; 1]> {
3305 let mut line_elements = SmallVec::new();
3306 for (ix, line) in line_layouts.iter_mut().enumerate() {
3307 let row = start_row + DisplayRow(ix as u32);
3308 line.prepaint(
3309 line_height,
3310 scroll_pixel_position,
3311 row,
3312 content_origin,
3313 &mut line_elements,
3314 window,
3315 cx,
3316 );
3317 }
3318 line_elements
3319 }
3320
3321 fn render_block(
3322 &self,
3323 block: &Block,
3324 available_width: AvailableSpace,
3325 block_id: BlockId,
3326 block_row_start: DisplayRow,
3327 snapshot: &EditorSnapshot,
3328 text_x: Pixels,
3329 rows: &Range<DisplayRow>,
3330 line_layouts: &[LineWithInvisibles],
3331 editor_margins: &EditorMargins,
3332 line_height: Pixels,
3333 em_width: Pixels,
3334 text_hitbox: &Hitbox,
3335 editor_width: Pixels,
3336 scroll_width: &mut Pixels,
3337 resized_blocks: &mut HashMap<CustomBlockId, u32>,
3338 row_block_types: &mut HashMap<DisplayRow, bool>,
3339 selections: &[Selection<Point>],
3340 selected_buffer_ids: &Vec<BufferId>,
3341 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3342 sticky_header_excerpt_id: Option<ExcerptId>,
3343 window: &mut Window,
3344 cx: &mut App,
3345 ) -> Option<(AnyElement, Size<Pixels>, DisplayRow, Pixels)> {
3346 let mut x_position = None;
3347 let mut element = match block {
3348 Block::Custom(custom) => {
3349 let block_start = custom.start().to_point(&snapshot.buffer_snapshot);
3350 let block_end = custom.end().to_point(&snapshot.buffer_snapshot);
3351 if block.place_near() && snapshot.is_line_folded(MultiBufferRow(block_start.row)) {
3352 return None;
3353 }
3354 let align_to = block_start.to_display_point(snapshot);
3355 let x_and_width = |layout: &LineWithInvisibles| {
3356 Some((
3357 text_x + layout.x_for_index(align_to.column() as usize),
3358 text_x + layout.width,
3359 ))
3360 };
3361 let line_ix = align_to.row().0.checked_sub(rows.start.0);
3362 x_position =
3363 if let Some(layout) = line_ix.and_then(|ix| line_layouts.get(ix as usize)) {
3364 x_and_width(&layout)
3365 } else {
3366 x_and_width(&layout_line(
3367 align_to.row(),
3368 snapshot,
3369 &self.style,
3370 editor_width,
3371 is_row_soft_wrapped,
3372 window,
3373 cx,
3374 ))
3375 };
3376
3377 let anchor_x = x_position.unwrap().0;
3378
3379 let selected = selections
3380 .binary_search_by(|selection| {
3381 if selection.end <= block_start {
3382 Ordering::Less
3383 } else if selection.start >= block_end {
3384 Ordering::Greater
3385 } else {
3386 Ordering::Equal
3387 }
3388 })
3389 .is_ok();
3390
3391 div()
3392 .size_full()
3393 .children(
3394 (!snapshot.mode.is_minimap() || custom.render_in_minimap).then(|| {
3395 custom.render(&mut BlockContext {
3396 window,
3397 app: cx,
3398 anchor_x,
3399 margins: editor_margins,
3400 line_height,
3401 em_width,
3402 block_id,
3403 selected,
3404 max_width: text_hitbox.size.width.max(*scroll_width),
3405 editor_style: &self.style,
3406 })
3407 }),
3408 )
3409 .into_any()
3410 }
3411
3412 Block::FoldedBuffer {
3413 first_excerpt,
3414 height,
3415 ..
3416 } => {
3417 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
3418 let result = v_flex().id(block_id).w_full().pr(editor_margins.right);
3419
3420 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
3421 result
3422 .child(self.render_buffer_header(
3423 first_excerpt,
3424 true,
3425 selected,
3426 false,
3427 jump_data,
3428 window,
3429 cx,
3430 ))
3431 .into_any_element()
3432 }
3433
3434 Block::ExcerptBoundary {
3435 excerpt,
3436 height,
3437 starts_new_buffer,
3438 ..
3439 } => {
3440 let color = cx.theme().colors().clone();
3441 let mut result = v_flex().id(block_id).w_full();
3442
3443 let jump_data = header_jump_data(snapshot, block_row_start, *height, excerpt);
3444
3445 if *starts_new_buffer {
3446 if sticky_header_excerpt_id != Some(excerpt.id) {
3447 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3448
3449 result = result.child(div().pr(editor_margins.right).child(
3450 self.render_buffer_header(
3451 excerpt, false, selected, false, jump_data, window, cx,
3452 ),
3453 ));
3454 } else {
3455 result =
3456 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
3457 }
3458 } else {
3459 result = result.child(
3460 h_flex().relative().child(
3461 div()
3462 .top(line_height / 2.)
3463 .absolute()
3464 .w_full()
3465 .h_px()
3466 .bg(color.border_variant),
3467 ),
3468 );
3469 };
3470
3471 result.into_any()
3472 }
3473 };
3474
3475 // Discover the element's content height, then round up to the nearest multiple of line height.
3476 let preliminary_size = element.layout_as_root(
3477 size(available_width, AvailableSpace::MinContent),
3478 window,
3479 cx,
3480 );
3481 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
3482 let final_size = if preliminary_size.height == quantized_height {
3483 preliminary_size
3484 } else {
3485 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
3486 };
3487 let mut element_height_in_lines = ((final_size.height / line_height).ceil() as u32).max(1);
3488
3489 let mut row = block_row_start;
3490 let mut x_offset = px(0.);
3491 let mut is_block = true;
3492
3493 if let BlockId::Custom(custom_block_id) = block_id {
3494 if block.has_height() {
3495 if block.place_near() {
3496 if let Some((x_target, line_width)) = x_position {
3497 let margin = em_width * 2;
3498 if line_width + final_size.width + margin
3499 < editor_width + editor_margins.gutter.full_width()
3500 && !row_block_types.contains_key(&(row - 1))
3501 && element_height_in_lines == 1
3502 {
3503 x_offset = line_width + margin;
3504 row = row - 1;
3505 is_block = false;
3506 element_height_in_lines = 0;
3507 row_block_types.insert(row, is_block);
3508 } else {
3509 let max_offset = editor_width + editor_margins.gutter.full_width()
3510 - final_size.width;
3511 let min_offset = (x_target + em_width - final_size.width)
3512 .max(editor_margins.gutter.full_width());
3513 x_offset = x_target.min(max_offset).max(min_offset);
3514 }
3515 }
3516 };
3517 if element_height_in_lines != block.height() {
3518 resized_blocks.insert(custom_block_id, element_height_in_lines);
3519 }
3520 }
3521 }
3522 for i in 0..element_height_in_lines {
3523 row_block_types.insert(row + i, is_block);
3524 }
3525
3526 Some((element, final_size, row, x_offset))
3527 }
3528
3529 fn render_buffer_header(
3530 &self,
3531 for_excerpt: &ExcerptInfo,
3532 is_folded: bool,
3533 is_selected: bool,
3534 is_sticky: bool,
3535 jump_data: JumpData,
3536 window: &mut Window,
3537 cx: &mut App,
3538 ) -> Div {
3539 let editor = self.editor.read(cx);
3540 let file_status = editor
3541 .buffer
3542 .read(cx)
3543 .all_diff_hunks_expanded()
3544 .then(|| {
3545 editor
3546 .project
3547 .as_ref()?
3548 .read(cx)
3549 .status_for_buffer_id(for_excerpt.buffer_id, cx)
3550 })
3551 .flatten();
3552
3553 let include_root = editor
3554 .project
3555 .as_ref()
3556 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
3557 .unwrap_or_default();
3558 let can_open_excerpts = Editor::can_open_excerpts_in_file(for_excerpt.buffer.file());
3559 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
3560 let filename = path
3561 .as_ref()
3562 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
3563 let parent_path = path.as_ref().and_then(|path| {
3564 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
3565 });
3566 let focus_handle = editor.focus_handle(cx);
3567 let colors = cx.theme().colors();
3568
3569 div()
3570 .p_1()
3571 .w_full()
3572 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
3573 .child(
3574 h_flex()
3575 .size_full()
3576 .gap_2()
3577 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
3578 .pl_0p5()
3579 .pr_5()
3580 .rounded_sm()
3581 .when(is_sticky, |el| el.shadow_md())
3582 .border_1()
3583 .map(|div| {
3584 let border_color = if is_selected
3585 && is_folded
3586 && focus_handle.contains_focused(window, cx)
3587 {
3588 colors.border_focused
3589 } else {
3590 colors.border
3591 };
3592 div.border_color(border_color)
3593 })
3594 .bg(colors.editor_subheader_background)
3595 .hover(|style| style.bg(colors.element_hover))
3596 .map(|header| {
3597 let editor = self.editor.clone();
3598 let buffer_id = for_excerpt.buffer_id;
3599 let toggle_chevron_icon =
3600 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
3601 header.child(
3602 div()
3603 .hover(|style| style.bg(colors.element_selected))
3604 .rounded_xs()
3605 .child(
3606 ButtonLike::new("toggle-buffer-fold")
3607 .style(ui::ButtonStyle::Transparent)
3608 .height(px(28.).into())
3609 .width(px(28.).into())
3610 .children(toggle_chevron_icon)
3611 .tooltip({
3612 let focus_handle = focus_handle.clone();
3613 move |window, cx| {
3614 Tooltip::for_action_in(
3615 "Toggle Excerpt Fold",
3616 &ToggleFold,
3617 &focus_handle,
3618 window,
3619 cx,
3620 )
3621 }
3622 })
3623 .on_click(move |_, _, cx| {
3624 if is_folded {
3625 editor.update(cx, |editor, cx| {
3626 editor.unfold_buffer(buffer_id, cx);
3627 });
3628 } else {
3629 editor.update(cx, |editor, cx| {
3630 editor.fold_buffer(buffer_id, cx);
3631 });
3632 }
3633 }),
3634 ),
3635 )
3636 })
3637 .children(
3638 editor
3639 .addons
3640 .values()
3641 .filter_map(|addon| {
3642 addon.render_buffer_header_controls(for_excerpt, window, cx)
3643 })
3644 .take(1),
3645 )
3646 .child(
3647 h_flex()
3648 .cursor_pointer()
3649 .id("path header block")
3650 .size_full()
3651 .justify_between()
3652 .child(
3653 h_flex()
3654 .gap_2()
3655 .child(
3656 Label::new(
3657 filename
3658 .map(SharedString::from)
3659 .unwrap_or_else(|| "untitled".into()),
3660 )
3661 .single_line()
3662 .when_some(
3663 file_status,
3664 |el, status| {
3665 el.color(if status.is_conflicted() {
3666 Color::Conflict
3667 } else if status.is_modified() {
3668 Color::Modified
3669 } else if status.is_deleted() {
3670 Color::Disabled
3671 } else {
3672 Color::Created
3673 })
3674 .when(status.is_deleted(), |el| el.strikethrough())
3675 },
3676 ),
3677 )
3678 .when_some(parent_path, |then, path| {
3679 then.child(div().child(path).text_color(
3680 if file_status.is_some_and(FileStatus::is_deleted) {
3681 colors.text_disabled
3682 } else {
3683 colors.text_muted
3684 },
3685 ))
3686 }),
3687 )
3688 .when(can_open_excerpts && is_selected && path.is_some(), |el| {
3689 el.child(
3690 h_flex()
3691 .id("jump-to-file-button")
3692 .gap_2p5()
3693 .child(Label::new("Jump To File"))
3694 .children(
3695 KeyBinding::for_action_in(
3696 &OpenExcerpts,
3697 &focus_handle,
3698 window,
3699 cx,
3700 )
3701 .map(|binding| binding.into_any_element()),
3702 ),
3703 )
3704 })
3705 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
3706 .on_click(window.listener_for(&self.editor, {
3707 move |editor, e: &ClickEvent, window, cx| {
3708 editor.open_excerpts_common(
3709 Some(jump_data.clone()),
3710 e.down.modifiers.secondary(),
3711 window,
3712 cx,
3713 );
3714 }
3715 })),
3716 ),
3717 )
3718 }
3719
3720 fn render_blocks(
3721 &self,
3722 rows: Range<DisplayRow>,
3723 snapshot: &EditorSnapshot,
3724 hitbox: &Hitbox,
3725 text_hitbox: &Hitbox,
3726 editor_width: Pixels,
3727 scroll_width: &mut Pixels,
3728 editor_margins: &EditorMargins,
3729 em_width: Pixels,
3730 text_x: Pixels,
3731 line_height: Pixels,
3732 line_layouts: &mut [LineWithInvisibles],
3733 selections: &[Selection<Point>],
3734 selected_buffer_ids: &Vec<BufferId>,
3735 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3736 sticky_header_excerpt_id: Option<ExcerptId>,
3737 window: &mut Window,
3738 cx: &mut App,
3739 ) -> Result<(Vec<BlockLayout>, HashMap<DisplayRow, bool>), HashMap<CustomBlockId, u32>> {
3740 let (fixed_blocks, non_fixed_blocks) = snapshot
3741 .blocks_in_range(rows.clone())
3742 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
3743
3744 let mut focused_block = self
3745 .editor
3746 .update(cx, |editor, _| editor.take_focused_block());
3747 let mut fixed_block_max_width = Pixels::ZERO;
3748 let mut blocks = Vec::new();
3749 let mut resized_blocks = HashMap::default();
3750 let mut row_block_types = HashMap::default();
3751
3752 for (row, block) in fixed_blocks {
3753 let block_id = block.id();
3754
3755 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3756 focused_block = None;
3757 }
3758
3759 if let Some((element, element_size, row, x_offset)) = self.render_block(
3760 block,
3761 AvailableSpace::MinContent,
3762 block_id,
3763 row,
3764 snapshot,
3765 text_x,
3766 &rows,
3767 line_layouts,
3768 editor_margins,
3769 line_height,
3770 em_width,
3771 text_hitbox,
3772 editor_width,
3773 scroll_width,
3774 &mut resized_blocks,
3775 &mut row_block_types,
3776 selections,
3777 selected_buffer_ids,
3778 is_row_soft_wrapped,
3779 sticky_header_excerpt_id,
3780 window,
3781 cx,
3782 ) {
3783 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
3784 blocks.push(BlockLayout {
3785 id: block_id,
3786 x_offset,
3787 row: Some(row),
3788 element,
3789 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
3790 style: BlockStyle::Fixed,
3791 overlaps_gutter: true,
3792 is_buffer_header: block.is_buffer_header(),
3793 });
3794 }
3795 }
3796
3797 for (row, block) in non_fixed_blocks {
3798 let style = block.style();
3799 let width = match (style, block.place_near()) {
3800 (_, true) => AvailableSpace::MinContent,
3801 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
3802 (BlockStyle::Flex, _) => hitbox
3803 .size
3804 .width
3805 .max(fixed_block_max_width)
3806 .max(editor_margins.gutter.width + *scroll_width)
3807 .into(),
3808 (BlockStyle::Fixed, _) => unreachable!(),
3809 };
3810 let block_id = block.id();
3811
3812 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3813 focused_block = None;
3814 }
3815
3816 if let Some((element, element_size, row, x_offset)) = self.render_block(
3817 block,
3818 width,
3819 block_id,
3820 row,
3821 snapshot,
3822 text_x,
3823 &rows,
3824 line_layouts,
3825 editor_margins,
3826 line_height,
3827 em_width,
3828 text_hitbox,
3829 editor_width,
3830 scroll_width,
3831 &mut resized_blocks,
3832 &mut row_block_types,
3833 selections,
3834 selected_buffer_ids,
3835 is_row_soft_wrapped,
3836 sticky_header_excerpt_id,
3837 window,
3838 cx,
3839 ) {
3840 blocks.push(BlockLayout {
3841 id: block_id,
3842 x_offset,
3843 row: Some(row),
3844 element,
3845 available_space: size(width, element_size.height.into()),
3846 style,
3847 overlaps_gutter: !block.place_near(),
3848 is_buffer_header: block.is_buffer_header(),
3849 });
3850 }
3851 }
3852
3853 if let Some(focused_block) = focused_block {
3854 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
3855 if focus_handle.is_focused(window) {
3856 if let Some(block) = snapshot.block_for_id(focused_block.id) {
3857 let style = block.style();
3858 let width = match style {
3859 BlockStyle::Fixed => AvailableSpace::MinContent,
3860 BlockStyle::Flex => AvailableSpace::Definite(
3861 hitbox
3862 .size
3863 .width
3864 .max(fixed_block_max_width)
3865 .max(editor_margins.gutter.width + *scroll_width),
3866 ),
3867 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
3868 };
3869
3870 if let Some((element, element_size, _, x_offset)) = self.render_block(
3871 &block,
3872 width,
3873 focused_block.id,
3874 rows.end,
3875 snapshot,
3876 text_x,
3877 &rows,
3878 line_layouts,
3879 editor_margins,
3880 line_height,
3881 em_width,
3882 text_hitbox,
3883 editor_width,
3884 scroll_width,
3885 &mut resized_blocks,
3886 &mut row_block_types,
3887 selections,
3888 selected_buffer_ids,
3889 is_row_soft_wrapped,
3890 sticky_header_excerpt_id,
3891 window,
3892 cx,
3893 ) {
3894 blocks.push(BlockLayout {
3895 id: block.id(),
3896 x_offset,
3897 row: None,
3898 element,
3899 available_space: size(width, element_size.height.into()),
3900 style,
3901 overlaps_gutter: true,
3902 is_buffer_header: block.is_buffer_header(),
3903 });
3904 }
3905 }
3906 }
3907 }
3908 }
3909
3910 if resized_blocks.is_empty() {
3911 *scroll_width =
3912 (*scroll_width).max(fixed_block_max_width - editor_margins.gutter.width);
3913 Ok((blocks, row_block_types))
3914 } else {
3915 Err(resized_blocks)
3916 }
3917 }
3918
3919 fn layout_blocks(
3920 &self,
3921 blocks: &mut Vec<BlockLayout>,
3922 hitbox: &Hitbox,
3923 line_height: Pixels,
3924 scroll_pixel_position: gpui::Point<Pixels>,
3925 window: &mut Window,
3926 cx: &mut App,
3927 ) {
3928 for block in blocks {
3929 let mut origin = if let Some(row) = block.row {
3930 hitbox.origin
3931 + point(
3932 block.x_offset,
3933 row.as_f32() * line_height - scroll_pixel_position.y,
3934 )
3935 } else {
3936 // Position the block outside the visible area
3937 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
3938 };
3939
3940 if !matches!(block.style, BlockStyle::Sticky) {
3941 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
3942 }
3943
3944 let focus_handle =
3945 block
3946 .element
3947 .prepaint_as_root(origin, block.available_space, window, cx);
3948
3949 if let Some(focus_handle) = focus_handle {
3950 self.editor.update(cx, |editor, _cx| {
3951 editor.set_focused_block(FocusedBlock {
3952 id: block.id,
3953 focus_handle: focus_handle.downgrade(),
3954 });
3955 });
3956 }
3957 }
3958 }
3959
3960 fn layout_sticky_buffer_header(
3961 &self,
3962 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
3963 scroll_position: f32,
3964 line_height: Pixels,
3965 right_margin: Pixels,
3966 snapshot: &EditorSnapshot,
3967 hitbox: &Hitbox,
3968 selected_buffer_ids: &Vec<BufferId>,
3969 blocks: &[BlockLayout],
3970 window: &mut Window,
3971 cx: &mut App,
3972 ) -> AnyElement {
3973 let jump_data = header_jump_data(
3974 snapshot,
3975 DisplayRow(scroll_position as u32),
3976 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3977 excerpt,
3978 );
3979
3980 let editor_bg_color = cx.theme().colors().editor_background;
3981
3982 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3983
3984 let available_width = hitbox.bounds.size.width - right_margin;
3985
3986 let mut header = v_flex()
3987 .relative()
3988 .child(
3989 div()
3990 .w(available_width)
3991 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3992 .bg(linear_gradient(
3993 0.,
3994 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3995 linear_color_stop(editor_bg_color, 0.6),
3996 ))
3997 .absolute()
3998 .top_0(),
3999 )
4000 .child(
4001 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
4002 .into_any_element(),
4003 )
4004 .into_any_element();
4005
4006 let mut origin = hitbox.origin;
4007 // Move floating header up to avoid colliding with the next buffer header.
4008 for block in blocks.iter() {
4009 if !block.is_buffer_header {
4010 continue;
4011 }
4012
4013 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position as u32) else {
4014 continue;
4015 };
4016
4017 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
4018 let offset = scroll_position - max_row as f32;
4019
4020 if offset > 0.0 {
4021 origin.y -= offset * line_height;
4022 }
4023 break;
4024 }
4025
4026 let size = size(
4027 AvailableSpace::Definite(available_width),
4028 AvailableSpace::MinContent,
4029 );
4030
4031 header.prepaint_as_root(origin, size, window, cx);
4032
4033 header
4034 }
4035
4036 fn layout_cursor_popovers(
4037 &self,
4038 line_height: Pixels,
4039 text_hitbox: &Hitbox,
4040 content_origin: gpui::Point<Pixels>,
4041 right_margin: Pixels,
4042 start_row: DisplayRow,
4043 scroll_pixel_position: gpui::Point<Pixels>,
4044 line_layouts: &[LineWithInvisibles],
4045 cursor: DisplayPoint,
4046 cursor_point: Point,
4047 style: &EditorStyle,
4048 window: &mut Window,
4049 cx: &mut App,
4050 ) -> Option<ContextMenuLayout> {
4051 let mut min_menu_height = Pixels::ZERO;
4052 let mut max_menu_height = Pixels::ZERO;
4053 let mut height_above_menu = Pixels::ZERO;
4054 let height_below_menu = Pixels::ZERO;
4055 let mut edit_prediction_popover_visible = false;
4056 let mut context_menu_visible = false;
4057 let context_menu_placement;
4058
4059 {
4060 let editor = self.editor.read(cx);
4061 if editor
4062 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
4063 {
4064 height_above_menu +=
4065 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
4066 edit_prediction_popover_visible = true;
4067 }
4068
4069 if editor.context_menu_visible() {
4070 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
4071 let (min_height_in_lines, max_height_in_lines) = editor
4072 .context_menu_options
4073 .as_ref()
4074 .map_or((3, 12), |options| {
4075 (options.min_entries_visible, options.max_entries_visible)
4076 });
4077
4078 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4079 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4080 context_menu_visible = true;
4081 }
4082 }
4083 context_menu_placement = editor
4084 .context_menu_options
4085 .as_ref()
4086 .and_then(|options| options.placement.clone());
4087 }
4088
4089 let visible = edit_prediction_popover_visible || context_menu_visible;
4090 if !visible {
4091 return None;
4092 }
4093
4094 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
4095 let target_position = content_origin
4096 + gpui::Point {
4097 x: cmp::max(
4098 px(0.),
4099 cursor_row_layout.x_for_index(cursor.column() as usize)
4100 - scroll_pixel_position.x,
4101 ),
4102 y: cmp::max(
4103 px(0.),
4104 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
4105 ),
4106 };
4107
4108 let viewport_bounds =
4109 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4110 right: -right_margin - MENU_GAP,
4111 ..Default::default()
4112 });
4113
4114 let min_height = height_above_menu + min_menu_height + height_below_menu;
4115 let max_height = height_above_menu + max_menu_height + height_below_menu;
4116 let (laid_out_popovers, y_flipped) = self.layout_popovers_above_or_below_line(
4117 target_position,
4118 line_height,
4119 min_height,
4120 max_height,
4121 context_menu_placement,
4122 text_hitbox,
4123 viewport_bounds,
4124 window,
4125 cx,
4126 |height, max_width_for_stable_x, y_flipped, window, cx| {
4127 // First layout the menu to get its size - others can be at least this wide.
4128 let context_menu = if context_menu_visible {
4129 let menu_height = if y_flipped {
4130 height - height_below_menu
4131 } else {
4132 height - height_above_menu
4133 };
4134 let mut element = self
4135 .render_context_menu(line_height, menu_height, window, cx)
4136 .expect("Visible context menu should always render.");
4137 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4138 Some((CursorPopoverType::CodeContextMenu, element, size))
4139 } else {
4140 None
4141 };
4142 let min_width = context_menu
4143 .as_ref()
4144 .map_or(px(0.), |(_, _, size)| size.width);
4145 let max_width = max_width_for_stable_x.max(
4146 context_menu
4147 .as_ref()
4148 .map_or(px(0.), |(_, _, size)| size.width),
4149 );
4150
4151 let edit_prediction = if edit_prediction_popover_visible {
4152 self.editor.update(cx, move |editor, cx| {
4153 let accept_binding =
4154 editor.accept_edit_prediction_keybind(false, window, cx);
4155 let mut element = editor.render_edit_prediction_cursor_popover(
4156 min_width,
4157 max_width,
4158 cursor_point,
4159 style,
4160 accept_binding.keystroke(),
4161 window,
4162 cx,
4163 )?;
4164 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4165 Some((CursorPopoverType::EditPrediction, element, size))
4166 })
4167 } else {
4168 None
4169 };
4170 vec![edit_prediction, context_menu]
4171 .into_iter()
4172 .flatten()
4173 .collect::<Vec<_>>()
4174 },
4175 )?;
4176
4177 let (menu_ix, (_, menu_bounds)) = laid_out_popovers
4178 .iter()
4179 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))?;
4180 let last_ix = laid_out_popovers.len() - 1;
4181 let menu_is_last = menu_ix == last_ix;
4182 let first_popover_bounds = laid_out_popovers[0].1;
4183 let last_popover_bounds = laid_out_popovers[last_ix].1;
4184
4185 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
4186 // right, and otherwise it goes below or to the right.
4187 let mut target_bounds = Bounds::from_corners(
4188 first_popover_bounds.origin,
4189 last_popover_bounds.bottom_right(),
4190 );
4191 target_bounds.size.width = menu_bounds.size.width;
4192
4193 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
4194 // based on this is preferred for layout stability.
4195 let mut max_target_bounds = target_bounds;
4196 max_target_bounds.size.height = max_height;
4197 if y_flipped {
4198 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
4199 }
4200
4201 // Add spacing around `target_bounds` and `max_target_bounds`.
4202 let mut extend_amount = Edges::all(MENU_GAP);
4203 if y_flipped {
4204 extend_amount.bottom = line_height;
4205 } else {
4206 extend_amount.top = line_height;
4207 }
4208 let target_bounds = target_bounds.extend(extend_amount);
4209 let max_target_bounds = max_target_bounds.extend(extend_amount);
4210
4211 let must_place_above_or_below =
4212 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
4213 laid_out_popovers[menu_ix + 1..]
4214 .iter()
4215 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
4216 } else {
4217 false
4218 };
4219
4220 let aside_bounds = self.layout_context_menu_aside(
4221 y_flipped,
4222 *menu_bounds,
4223 target_bounds,
4224 max_target_bounds,
4225 max_menu_height,
4226 must_place_above_or_below,
4227 text_hitbox,
4228 viewport_bounds,
4229 window,
4230 cx,
4231 );
4232
4233 if let Some(menu_bounds) = laid_out_popovers.iter().find_map(|(popover_type, bounds)| {
4234 if matches!(popover_type, CursorPopoverType::CodeContextMenu) {
4235 Some(*bounds)
4236 } else {
4237 None
4238 }
4239 }) {
4240 let bounds = if let Some(aside_bounds) = aside_bounds {
4241 menu_bounds.union(&aside_bounds)
4242 } else {
4243 menu_bounds
4244 };
4245 return Some(ContextMenuLayout { y_flipped, bounds });
4246 }
4247
4248 None
4249 }
4250
4251 fn layout_gutter_menu(
4252 &self,
4253 line_height: Pixels,
4254 text_hitbox: &Hitbox,
4255 content_origin: gpui::Point<Pixels>,
4256 right_margin: Pixels,
4257 scroll_pixel_position: gpui::Point<Pixels>,
4258 gutter_overshoot: Pixels,
4259 window: &mut Window,
4260 cx: &mut App,
4261 ) {
4262 let editor = self.editor.read(cx);
4263 if !editor.context_menu_visible() {
4264 return;
4265 }
4266 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
4267 editor.context_menu_origin()
4268 else {
4269 return;
4270 };
4271 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
4272 // indicator than just a plain first column of the text field.
4273 let target_position = content_origin
4274 + gpui::Point {
4275 x: -gutter_overshoot,
4276 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
4277 };
4278
4279 let (min_height_in_lines, max_height_in_lines) = editor
4280 .context_menu_options
4281 .as_ref()
4282 .map_or((3, 12), |options| {
4283 (options.min_entries_visible, options.max_entries_visible)
4284 });
4285
4286 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4287 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4288 let viewport_bounds =
4289 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4290 right: -right_margin - MENU_GAP,
4291 ..Default::default()
4292 });
4293 self.layout_popovers_above_or_below_line(
4294 target_position,
4295 line_height,
4296 min_height,
4297 max_height,
4298 editor
4299 .context_menu_options
4300 .as_ref()
4301 .and_then(|options| options.placement.clone()),
4302 text_hitbox,
4303 viewport_bounds,
4304 window,
4305 cx,
4306 move |height, _max_width_for_stable_x, _, window, cx| {
4307 let mut element = self
4308 .render_context_menu(line_height, height, window, cx)
4309 .expect("Visible context menu should always render.");
4310 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4311 vec![(CursorPopoverType::CodeContextMenu, element, size)]
4312 },
4313 );
4314 }
4315
4316 fn layout_popovers_above_or_below_line(
4317 &self,
4318 target_position: gpui::Point<Pixels>,
4319 line_height: Pixels,
4320 min_height: Pixels,
4321 max_height: Pixels,
4322 placement: Option<ContextMenuPlacement>,
4323 text_hitbox: &Hitbox,
4324 viewport_bounds: Bounds<Pixels>,
4325 window: &mut Window,
4326 cx: &mut App,
4327 make_sized_popovers: impl FnOnce(
4328 Pixels,
4329 Pixels,
4330 bool,
4331 &mut Window,
4332 &mut App,
4333 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
4334 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
4335 let text_style = TextStyleRefinement {
4336 line_height: Some(DefiniteLength::Fraction(
4337 BufferLineHeight::Comfortable.value(),
4338 )),
4339 ..Default::default()
4340 };
4341 window.with_text_style(Some(text_style), |window| {
4342 // If the max height won't fit below and there is more space above, put it above the line.
4343 let bottom_y_when_flipped = target_position.y - line_height;
4344 let available_above = bottom_y_when_flipped - text_hitbox.top();
4345 let available_below = text_hitbox.bottom() - target_position.y;
4346 let y_overflows_below = max_height > available_below;
4347 let mut y_flipped = match placement {
4348 Some(ContextMenuPlacement::Above) => true,
4349 Some(ContextMenuPlacement::Below) => false,
4350 None => y_overflows_below && available_above > available_below,
4351 };
4352 let mut height = cmp::min(
4353 max_height,
4354 if y_flipped {
4355 available_above
4356 } else {
4357 available_below
4358 },
4359 );
4360
4361 // If the min height doesn't fit within text bounds, instead fit within the window.
4362 if height < min_height {
4363 let available_above = bottom_y_when_flipped;
4364 let available_below = viewport_bounds.bottom() - target_position.y;
4365 let (y_flipped_override, height_override) = match placement {
4366 Some(ContextMenuPlacement::Above) => {
4367 (true, cmp::min(available_above, min_height))
4368 }
4369 Some(ContextMenuPlacement::Below) => {
4370 (false, cmp::min(available_below, min_height))
4371 }
4372 None => {
4373 if available_below > min_height {
4374 (false, min_height)
4375 } else if available_above > min_height {
4376 (true, min_height)
4377 } else if available_above > available_below {
4378 (true, available_above)
4379 } else {
4380 (false, available_below)
4381 }
4382 }
4383 };
4384 y_flipped = y_flipped_override;
4385 height = height_override;
4386 }
4387
4388 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
4389
4390 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
4391 // for very narrow windows.
4392 let popovers =
4393 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
4394 if popovers.is_empty() {
4395 return None;
4396 }
4397
4398 let max_width = popovers
4399 .iter()
4400 .map(|(_, _, size)| size.width)
4401 .max()
4402 .unwrap_or_default();
4403
4404 let mut current_position = gpui::Point {
4405 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
4406 // overflow. Include space for the scrollbar.
4407 x: target_position
4408 .x
4409 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
4410 y: if y_flipped {
4411 bottom_y_when_flipped
4412 } else {
4413 target_position.y
4414 },
4415 };
4416
4417 let mut laid_out_popovers = popovers
4418 .into_iter()
4419 .map(|(popover_type, element, size)| {
4420 if y_flipped {
4421 current_position.y -= size.height;
4422 }
4423 let position = current_position;
4424 window.defer_draw(element, current_position, 1);
4425 if !y_flipped {
4426 current_position.y += size.height + MENU_GAP;
4427 } else {
4428 current_position.y -= MENU_GAP;
4429 }
4430 (popover_type, Bounds::new(position, size))
4431 })
4432 .collect::<Vec<_>>();
4433
4434 if y_flipped {
4435 laid_out_popovers.reverse();
4436 }
4437
4438 Some((laid_out_popovers, y_flipped))
4439 })
4440 }
4441
4442 fn layout_context_menu_aside(
4443 &self,
4444 y_flipped: bool,
4445 menu_bounds: Bounds<Pixels>,
4446 target_bounds: Bounds<Pixels>,
4447 max_target_bounds: Bounds<Pixels>,
4448 max_height: Pixels,
4449 must_place_above_or_below: bool,
4450 text_hitbox: &Hitbox,
4451 viewport_bounds: Bounds<Pixels>,
4452 window: &mut Window,
4453 cx: &mut App,
4454 ) -> Option<Bounds<Pixels>> {
4455 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
4456 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
4457 && !must_place_above_or_below
4458 {
4459 let max_width = cmp::min(
4460 available_within_viewport.right - px(1.),
4461 MENU_ASIDE_MAX_WIDTH,
4462 );
4463 let mut aside = self.render_context_menu_aside(
4464 size(max_width, max_height - POPOVER_Y_PADDING),
4465 window,
4466 cx,
4467 )?;
4468 let size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
4469 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
4470 Some((aside, right_position, size))
4471 } else {
4472 let max_size = size(
4473 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
4474 // won't be needed here.
4475 cmp::min(
4476 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
4477 viewport_bounds.right(),
4478 ),
4479 cmp::min(
4480 max_height,
4481 cmp::max(
4482 available_within_viewport.top,
4483 available_within_viewport.bottom,
4484 ),
4485 ) - POPOVER_Y_PADDING,
4486 );
4487 let mut aside = self.render_context_menu_aside(max_size, window, cx)?;
4488 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
4489
4490 let top_position = point(
4491 menu_bounds.origin.x,
4492 target_bounds.top() - actual_size.height,
4493 );
4494 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
4495
4496 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
4497 // Prefer to fit on the same side of the line as the menu, then on the other side of
4498 // the line.
4499 if !y_flipped && wanted.height < available.bottom {
4500 Some(bottom_position)
4501 } else if !y_flipped && wanted.height < available.top {
4502 Some(top_position)
4503 } else if y_flipped && wanted.height < available.top {
4504 Some(top_position)
4505 } else if y_flipped && wanted.height < available.bottom {
4506 Some(bottom_position)
4507 } else {
4508 None
4509 }
4510 };
4511
4512 // Prefer choosing a direction using max sizes rather than actual size for stability.
4513 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
4514 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
4515 let aside_position = fit_within(available_within_text, wanted)
4516 // Fallback: fit max size in window.
4517 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
4518 // Fallback: fit actual size in window.
4519 .or_else(|| fit_within(available_within_viewport, actual_size));
4520
4521 aside_position.map(|position| (aside, position, actual_size))
4522 };
4523
4524 // Skip drawing if it doesn't fit anywhere.
4525 if let Some((aside, position, size)) = positioned_aside {
4526 let aside_bounds = Bounds::new(position, size);
4527 window.defer_draw(aside, position, 2);
4528 return Some(aside_bounds);
4529 }
4530
4531 None
4532 }
4533
4534 fn render_context_menu(
4535 &self,
4536 line_height: Pixels,
4537 height: Pixels,
4538 window: &mut Window,
4539 cx: &mut App,
4540 ) -> Option<AnyElement> {
4541 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
4542 self.editor.update(cx, |editor, cx| {
4543 editor.render_context_menu(&self.style, max_height_in_lines, window, cx)
4544 })
4545 }
4546
4547 fn render_context_menu_aside(
4548 &self,
4549 max_size: Size<Pixels>,
4550 window: &mut Window,
4551 cx: &mut App,
4552 ) -> Option<AnyElement> {
4553 if max_size.width < px(100.) || max_size.height < px(12.) {
4554 None
4555 } else {
4556 self.editor.update(cx, |editor, cx| {
4557 editor.render_context_menu_aside(max_size, window, cx)
4558 })
4559 }
4560 }
4561
4562 fn layout_mouse_context_menu(
4563 &self,
4564 editor_snapshot: &EditorSnapshot,
4565 visible_range: Range<DisplayRow>,
4566 content_origin: gpui::Point<Pixels>,
4567 window: &mut Window,
4568 cx: &mut App,
4569 ) -> Option<AnyElement> {
4570 let position = self.editor.update(cx, |editor, _cx| {
4571 let visible_start_point = editor.display_to_pixel_point(
4572 DisplayPoint::new(visible_range.start, 0),
4573 editor_snapshot,
4574 window,
4575 )?;
4576 let visible_end_point = editor.display_to_pixel_point(
4577 DisplayPoint::new(visible_range.end, 0),
4578 editor_snapshot,
4579 window,
4580 )?;
4581
4582 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
4583 let (source_display_point, position) = match mouse_context_menu.position {
4584 MenuPosition::PinnedToScreen(point) => (None, point),
4585 MenuPosition::PinnedToEditor { source, offset } => {
4586 let source_display_point = source.to_display_point(editor_snapshot);
4587 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
4588 let position = content_origin + source_point + offset;
4589 (Some(source_display_point), position)
4590 }
4591 };
4592
4593 let source_included = source_display_point.map_or(true, |source_display_point| {
4594 visible_range
4595 .to_inclusive()
4596 .contains(&source_display_point.row())
4597 });
4598 let position_included =
4599 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
4600 if !source_included && !position_included {
4601 None
4602 } else {
4603 Some(position)
4604 }
4605 })?;
4606
4607 let text_style = TextStyleRefinement {
4608 line_height: Some(DefiniteLength::Fraction(
4609 BufferLineHeight::Comfortable.value(),
4610 )),
4611 ..Default::default()
4612 };
4613 window.with_text_style(Some(text_style), |window| {
4614 let mut element = self.editor.read_with(cx, |editor, _| {
4615 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
4616 let context_menu = mouse_context_menu.context_menu.clone();
4617
4618 Some(
4619 deferred(
4620 anchored()
4621 .position(position)
4622 .child(context_menu)
4623 .anchor(Corner::TopLeft)
4624 .snap_to_window_with_margin(px(8.)),
4625 )
4626 .with_priority(1)
4627 .into_any(),
4628 )
4629 })?;
4630
4631 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
4632 Some(element)
4633 })
4634 }
4635
4636 fn layout_hover_popovers(
4637 &self,
4638 snapshot: &EditorSnapshot,
4639 hitbox: &Hitbox,
4640 visible_display_row_range: Range<DisplayRow>,
4641 content_origin: gpui::Point<Pixels>,
4642 scroll_pixel_position: gpui::Point<Pixels>,
4643 line_layouts: &[LineWithInvisibles],
4644 line_height: Pixels,
4645 em_width: Pixels,
4646 context_menu_layout: Option<ContextMenuLayout>,
4647 window: &mut Window,
4648 cx: &mut App,
4649 ) {
4650 struct MeasuredHoverPopover {
4651 element: AnyElement,
4652 size: Size<Pixels>,
4653 horizontal_offset: Pixels,
4654 }
4655
4656 let max_size = size(
4657 (120. * em_width) // Default size
4658 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4659 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4660 (16. * line_height) // Default size
4661 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4662 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4663 );
4664
4665 let hover_popovers = self.editor.update(cx, |editor, cx| {
4666 editor.hover_state.render(
4667 snapshot,
4668 visible_display_row_range.clone(),
4669 max_size,
4670 window,
4671 cx,
4672 )
4673 });
4674 let Some((position, hover_popovers)) = hover_popovers else {
4675 return;
4676 };
4677
4678 // This is safe because we check on layout whether the required row is available
4679 let hovered_row_layout =
4680 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
4681
4682 // Compute Hovered Point
4683 let x =
4684 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
4685 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
4686 let hovered_point = content_origin + point(x, y);
4687
4688 let mut overall_height = Pixels::ZERO;
4689 let mut measured_hover_popovers = Vec::new();
4690 for (position, mut hover_popover) in hover_popovers.into_iter().with_position() {
4691 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
4692 let horizontal_offset =
4693 (hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
4694 .min(Pixels::ZERO);
4695 match position {
4696 itertools::Position::Middle | itertools::Position::Last => {
4697 overall_height += HOVER_POPOVER_GAP
4698 }
4699 _ => {}
4700 }
4701 overall_height += size.height;
4702 measured_hover_popovers.push(MeasuredHoverPopover {
4703 element: hover_popover,
4704 size,
4705 horizontal_offset,
4706 });
4707 }
4708
4709 fn draw_occluder(
4710 width: Pixels,
4711 origin: gpui::Point<Pixels>,
4712 window: &mut Window,
4713 cx: &mut App,
4714 ) {
4715 let mut occlusion = div()
4716 .size_full()
4717 .occlude()
4718 .on_mouse_move(|_, _, cx| cx.stop_propagation())
4719 .into_any_element();
4720 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
4721 window.defer_draw(occlusion, origin, 2);
4722 }
4723
4724 fn place_popovers_above(
4725 hovered_point: gpui::Point<Pixels>,
4726 measured_hover_popovers: Vec<MeasuredHoverPopover>,
4727 window: &mut Window,
4728 cx: &mut App,
4729 ) {
4730 let mut current_y = hovered_point.y;
4731 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4732 let size = popover.size;
4733 let popover_origin = point(
4734 hovered_point.x + popover.horizontal_offset,
4735 current_y - size.height,
4736 );
4737
4738 window.defer_draw(popover.element, popover_origin, 2);
4739 if position != itertools::Position::Last {
4740 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
4741 draw_occluder(size.width, origin, window, cx);
4742 }
4743
4744 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4745 }
4746 }
4747
4748 fn place_popovers_below(
4749 hovered_point: gpui::Point<Pixels>,
4750 measured_hover_popovers: Vec<MeasuredHoverPopover>,
4751 line_height: Pixels,
4752 window: &mut Window,
4753 cx: &mut App,
4754 ) {
4755 let mut current_y = hovered_point.y + line_height;
4756 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4757 let size = popover.size;
4758 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4759
4760 window.defer_draw(popover.element, popover_origin, 2);
4761 if position != itertools::Position::Last {
4762 let origin = point(popover_origin.x, popover_origin.y + size.height);
4763 draw_occluder(size.width, origin, window, cx);
4764 }
4765
4766 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4767 }
4768 }
4769
4770 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
4771 context_menu_layout
4772 .as_ref()
4773 .map_or(false, |menu| bounds.intersects(&menu.bounds))
4774 };
4775
4776 let can_place_above = {
4777 let mut bounds_above = Vec::new();
4778 let mut current_y = hovered_point.y;
4779 for popover in &measured_hover_popovers {
4780 let size = popover.size;
4781 let popover_origin = point(
4782 hovered_point.x + popover.horizontal_offset,
4783 current_y - size.height,
4784 );
4785 bounds_above.push(Bounds::new(popover_origin, size));
4786 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4787 }
4788 bounds_above
4789 .iter()
4790 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
4791 };
4792
4793 let can_place_below = || {
4794 let mut bounds_below = Vec::new();
4795 let mut current_y = hovered_point.y + line_height;
4796 for popover in &measured_hover_popovers {
4797 let size = popover.size;
4798 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4799 bounds_below.push(Bounds::new(popover_origin, size));
4800 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4801 }
4802 bounds_below
4803 .iter()
4804 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
4805 };
4806
4807 if can_place_above {
4808 // try placing above hovered point
4809 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
4810 } else if can_place_below() {
4811 // try placing below hovered point
4812 place_popovers_below(
4813 hovered_point,
4814 measured_hover_popovers,
4815 line_height,
4816 window,
4817 cx,
4818 );
4819 } else {
4820 // try to place popovers around the context menu
4821 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
4822 let total_width = measured_hover_popovers
4823 .iter()
4824 .map(|p| p.size.width)
4825 .max()
4826 .unwrap_or(Pixels::ZERO);
4827 let y_for_horizontal_positioning = if menu.y_flipped {
4828 menu.bounds.bottom() - overall_height
4829 } else {
4830 menu.bounds.top()
4831 };
4832 let possible_origins = vec![
4833 // left of context menu
4834 point(
4835 menu.bounds.left() - total_width - HOVER_POPOVER_GAP,
4836 y_for_horizontal_positioning,
4837 ),
4838 // right of context menu
4839 point(
4840 menu.bounds.right() + HOVER_POPOVER_GAP,
4841 y_for_horizontal_positioning,
4842 ),
4843 // top of context menu
4844 point(
4845 menu.bounds.left(),
4846 menu.bounds.top() - overall_height - HOVER_POPOVER_GAP,
4847 ),
4848 // bottom of context menu
4849 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
4850 ];
4851 possible_origins.into_iter().find(|&origin| {
4852 Bounds::new(origin, size(total_width, overall_height))
4853 .is_contained_within(hitbox)
4854 })
4855 });
4856 if let Some(origin) = origin_surrounding_menu {
4857 let mut current_y = origin.y;
4858 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4859 let size = popover.size;
4860 let popover_origin = point(origin.x, current_y);
4861
4862 window.defer_draw(popover.element, popover_origin, 2);
4863 if position != itertools::Position::Last {
4864 let origin = point(popover_origin.x, popover_origin.y + size.height);
4865 draw_occluder(size.width, origin, window, cx);
4866 }
4867
4868 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4869 }
4870 } else {
4871 // fallback to existing above/below cursor logic
4872 // this might overlap menu or overflow in rare case
4873 if can_place_above {
4874 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
4875 } else {
4876 place_popovers_below(
4877 hovered_point,
4878 measured_hover_popovers,
4879 line_height,
4880 window,
4881 cx,
4882 );
4883 }
4884 }
4885 }
4886 }
4887
4888 fn layout_diff_hunk_controls(
4889 &self,
4890 row_range: Range<DisplayRow>,
4891 row_infos: &[RowInfo],
4892 text_hitbox: &Hitbox,
4893 newest_cursor_position: Option<DisplayPoint>,
4894 line_height: Pixels,
4895 right_margin: Pixels,
4896 scroll_pixel_position: gpui::Point<Pixels>,
4897 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
4898 highlighted_rows: &BTreeMap<DisplayRow, LineHighlight>,
4899 editor: Entity<Editor>,
4900 window: &mut Window,
4901 cx: &mut App,
4902 ) -> (Vec<AnyElement>, Vec<(DisplayRow, Bounds<Pixels>)>) {
4903 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
4904 let hovered_diff_hunk_row = editor.read(cx).hovered_diff_hunk_row;
4905
4906 let mut controls = vec![];
4907 let mut control_bounds = vec![];
4908
4909 let active_positions = [
4910 hovered_diff_hunk_row.map(|row| DisplayPoint::new(row, 0)),
4911 newest_cursor_position,
4912 ];
4913
4914 for (hunk, _) in display_hunks {
4915 if let DisplayDiffHunk::Unfolded {
4916 display_row_range,
4917 multi_buffer_range,
4918 status,
4919 is_created_file,
4920 ..
4921 } = &hunk
4922 {
4923 if display_row_range.start < row_range.start
4924 || display_row_range.start >= row_range.end
4925 {
4926 continue;
4927 }
4928 if highlighted_rows
4929 .get(&display_row_range.start)
4930 .and_then(|highlight| highlight.type_id)
4931 .is_some_and(|type_id| {
4932 [
4933 TypeId::of::<ConflictsOuter>(),
4934 TypeId::of::<ConflictsOursMarker>(),
4935 TypeId::of::<ConflictsOurs>(),
4936 TypeId::of::<ConflictsTheirs>(),
4937 TypeId::of::<ConflictsTheirsMarker>(),
4938 ]
4939 .contains(&type_id)
4940 })
4941 {
4942 continue;
4943 }
4944 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4945 if row_infos[row_ix].diff_status.is_none() {
4946 continue;
4947 }
4948 if row_infos[row_ix]
4949 .diff_status
4950 .is_some_and(|status| status.is_added())
4951 && !status.is_added()
4952 {
4953 continue;
4954 }
4955
4956 if active_positions
4957 .iter()
4958 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4959 {
4960 let y = display_row_range.start.as_f32() * line_height
4961 + text_hitbox.bounds.top()
4962 - scroll_pixel_position.y;
4963
4964 let mut element = render_diff_hunk_controls(
4965 display_row_range.start.0,
4966 status,
4967 multi_buffer_range.clone(),
4968 *is_created_file,
4969 line_height,
4970 &editor,
4971 window,
4972 cx,
4973 );
4974 let size =
4975 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
4976
4977 let x = text_hitbox.bounds.right() - right_margin - px(10.) - size.width;
4978
4979 let bounds = Bounds::new(gpui::Point::new(x, y), size);
4980 control_bounds.push((display_row_range.start, bounds));
4981
4982 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
4983 element.prepaint(window, cx)
4984 });
4985 controls.push(element);
4986 }
4987 }
4988 }
4989
4990 (controls, control_bounds)
4991 }
4992
4993 fn layout_signature_help(
4994 &self,
4995 hitbox: &Hitbox,
4996 content_origin: gpui::Point<Pixels>,
4997 scroll_pixel_position: gpui::Point<Pixels>,
4998 newest_selection_head: Option<DisplayPoint>,
4999 start_row: DisplayRow,
5000 line_layouts: &[LineWithInvisibles],
5001 line_height: Pixels,
5002 em_width: Pixels,
5003 context_menu_layout: Option<ContextMenuLayout>,
5004 window: &mut Window,
5005 cx: &mut App,
5006 ) {
5007 if !self.editor.focus_handle(cx).is_focused(window) {
5008 return;
5009 }
5010 let Some(newest_selection_head) = newest_selection_head else {
5011 return;
5012 };
5013
5014 let max_size = size(
5015 (120. * em_width) // Default size
5016 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5017 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5018 (16. * line_height) // Default size
5019 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5020 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5021 );
5022
5023 let maybe_element = self.editor.update(cx, |editor, cx| {
5024 if let Some(popover) = editor.signature_help_state.popover_mut() {
5025 let element = popover.render(max_size, window, cx);
5026 Some(element)
5027 } else {
5028 None
5029 }
5030 });
5031 let Some(mut element) = maybe_element else {
5032 return;
5033 };
5034
5035 let selection_row = newest_selection_head.row();
5036 let Some(cursor_row_layout) = (selection_row >= start_row)
5037 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
5038 .flatten()
5039 else {
5040 return;
5041 };
5042
5043 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
5044 - scroll_pixel_position.x;
5045 let target_y = selection_row.as_f32() * line_height - scroll_pixel_position.y;
5046 let target_point = content_origin + point(target_x, target_y);
5047
5048 let actual_size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
5049
5050 let (popover_bounds_above, popover_bounds_below) = {
5051 let horizontal_offset = (hitbox.top_right().x
5052 - POPOVER_RIGHT_OFFSET
5053 - (target_point.x + actual_size.width))
5054 .min(Pixels::ZERO);
5055 let initial_x = target_point.x + horizontal_offset;
5056 (
5057 Bounds::new(
5058 point(initial_x, target_point.y - actual_size.height),
5059 actual_size,
5060 ),
5061 Bounds::new(
5062 point(initial_x, target_point.y + line_height + HOVER_POPOVER_GAP),
5063 actual_size,
5064 ),
5065 )
5066 };
5067
5068 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5069 context_menu_layout
5070 .as_ref()
5071 .map_or(false, |menu| bounds.intersects(&menu.bounds))
5072 };
5073
5074 let final_origin = if popover_bounds_above.is_contained_within(hitbox)
5075 && !intersects_menu(popover_bounds_above)
5076 {
5077 // try placing above cursor
5078 popover_bounds_above.origin
5079 } else if popover_bounds_below.is_contained_within(hitbox)
5080 && !intersects_menu(popover_bounds_below)
5081 {
5082 // try placing below cursor
5083 popover_bounds_below.origin
5084 } else {
5085 // try surrounding context menu if exists
5086 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5087 let y_for_horizontal_positioning = if menu.y_flipped {
5088 menu.bounds.bottom() - actual_size.height
5089 } else {
5090 menu.bounds.top()
5091 };
5092 let possible_origins = vec![
5093 // left of context menu
5094 point(
5095 menu.bounds.left() - actual_size.width - HOVER_POPOVER_GAP,
5096 y_for_horizontal_positioning,
5097 ),
5098 // right of context menu
5099 point(
5100 menu.bounds.right() + HOVER_POPOVER_GAP,
5101 y_for_horizontal_positioning,
5102 ),
5103 // top of context menu
5104 point(
5105 menu.bounds.left(),
5106 menu.bounds.top() - actual_size.height - HOVER_POPOVER_GAP,
5107 ),
5108 // bottom of context menu
5109 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5110 ];
5111 possible_origins
5112 .into_iter()
5113 .find(|&origin| Bounds::new(origin, actual_size).is_contained_within(hitbox))
5114 });
5115 origin_surrounding_menu.unwrap_or_else(|| {
5116 // fallback to existing above/below cursor logic
5117 // this might overlap menu or overflow in rare case
5118 if popover_bounds_above.is_contained_within(hitbox) {
5119 popover_bounds_above.origin
5120 } else {
5121 popover_bounds_below.origin
5122 }
5123 })
5124 };
5125
5126 window.defer_draw(element, final_origin, 2);
5127 }
5128
5129 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5130 window.paint_layer(layout.hitbox.bounds, |window| {
5131 let scroll_top = layout.position_map.snapshot.scroll_position().y;
5132 let gutter_bg = cx.theme().colors().editor_gutter_background;
5133 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
5134 window.paint_quad(fill(
5135 layout.position_map.text_hitbox.bounds,
5136 self.style.background,
5137 ));
5138
5139 if matches!(
5140 layout.mode,
5141 EditorMode::Full { .. } | EditorMode::Minimap { .. }
5142 ) {
5143 let show_active_line_background = match layout.mode {
5144 EditorMode::Full {
5145 show_active_line_background,
5146 ..
5147 } => show_active_line_background,
5148 EditorMode::Minimap { .. } => true,
5149 _ => false,
5150 };
5151 let mut active_rows = layout.active_rows.iter().peekable();
5152 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
5153 let mut end_row = start_row.0;
5154 while active_rows
5155 .peek()
5156 .map_or(false, |(active_row, has_selection)| {
5157 active_row.0 == end_row + 1
5158 && has_selection.selection == contains_non_empty_selection.selection
5159 })
5160 {
5161 active_rows.next().unwrap();
5162 end_row += 1;
5163 }
5164
5165 if show_active_line_background && !contains_non_empty_selection.selection {
5166 let highlight_h_range =
5167 match layout.position_map.snapshot.current_line_highlight {
5168 CurrentLineHighlight::Gutter => Some(Range {
5169 start: layout.hitbox.left(),
5170 end: layout.gutter_hitbox.right(),
5171 }),
5172 CurrentLineHighlight::Line => Some(Range {
5173 start: layout.position_map.text_hitbox.bounds.left(),
5174 end: layout.position_map.text_hitbox.bounds.right(),
5175 }),
5176 CurrentLineHighlight::All => Some(Range {
5177 start: layout.hitbox.left(),
5178 end: layout.hitbox.right(),
5179 }),
5180 CurrentLineHighlight::None => None,
5181 };
5182 if let Some(range) = highlight_h_range {
5183 let active_line_bg = cx.theme().colors().editor_active_line_background;
5184 let bounds = Bounds {
5185 origin: point(
5186 range.start,
5187 layout.hitbox.origin.y
5188 + (start_row.as_f32() - scroll_top)
5189 * layout.position_map.line_height,
5190 ),
5191 size: size(
5192 range.end - range.start,
5193 layout.position_map.line_height
5194 * (end_row - start_row.0 + 1) as f32,
5195 ),
5196 };
5197 window.paint_quad(fill(bounds, active_line_bg));
5198 }
5199 }
5200 }
5201
5202 let mut paint_highlight = |highlight_row_start: DisplayRow,
5203 highlight_row_end: DisplayRow,
5204 highlight: crate::LineHighlight,
5205 edges| {
5206 let mut origin_x = layout.hitbox.left();
5207 let mut width = layout.hitbox.size.width;
5208 if !highlight.include_gutter {
5209 origin_x += layout.gutter_hitbox.size.width;
5210 width -= layout.gutter_hitbox.size.width;
5211 }
5212
5213 let origin = point(
5214 origin_x,
5215 layout.hitbox.origin.y
5216 + (highlight_row_start.as_f32() - scroll_top)
5217 * layout.position_map.line_height,
5218 );
5219 let size = size(
5220 width,
5221 layout.position_map.line_height
5222 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
5223 );
5224 let mut quad = fill(Bounds { origin, size }, highlight.background);
5225 if let Some(border_color) = highlight.border {
5226 quad.border_color = border_color;
5227 quad.border_widths = edges
5228 }
5229 window.paint_quad(quad);
5230 };
5231
5232 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
5233 None;
5234 for (&new_row, &new_background) in &layout.highlighted_rows {
5235 match &mut current_paint {
5236 &mut Some((current_background, ref mut current_range, mut edges)) => {
5237 let new_range_started = current_background != new_background
5238 || current_range.end.next_row() != new_row;
5239 if new_range_started {
5240 if current_range.end.next_row() == new_row {
5241 edges.bottom = px(0.);
5242 };
5243 paint_highlight(
5244 current_range.start,
5245 current_range.end,
5246 current_background,
5247 edges,
5248 );
5249 let edges = Edges {
5250 top: if current_range.end.next_row() != new_row {
5251 px(1.)
5252 } else {
5253 px(0.)
5254 },
5255 bottom: px(1.),
5256 ..Default::default()
5257 };
5258 current_paint = Some((new_background, new_row..new_row, edges));
5259 continue;
5260 } else {
5261 current_range.end = current_range.end.next_row();
5262 }
5263 }
5264 None => {
5265 let edges = Edges {
5266 top: px(1.),
5267 bottom: px(1.),
5268 ..Default::default()
5269 };
5270 current_paint = Some((new_background, new_row..new_row, edges))
5271 }
5272 };
5273 }
5274 if let Some((color, range, edges)) = current_paint {
5275 paint_highlight(range.start, range.end, color, edges);
5276 }
5277
5278 for (guide_x, active) in layout.wrap_guides.iter() {
5279 let color = if *active {
5280 cx.theme().colors().editor_active_wrap_guide
5281 } else {
5282 cx.theme().colors().editor_wrap_guide
5283 };
5284 window.paint_quad(fill(
5285 Bounds {
5286 origin: point(*guide_x, layout.position_map.text_hitbox.origin.y),
5287 size: size(px(1.), layout.position_map.text_hitbox.size.height),
5288 },
5289 color,
5290 ));
5291 }
5292 }
5293 })
5294 }
5295
5296 fn paint_indent_guides(
5297 &mut self,
5298 layout: &mut EditorLayout,
5299 window: &mut Window,
5300 cx: &mut App,
5301 ) {
5302 let Some(indent_guides) = &layout.indent_guides else {
5303 return;
5304 };
5305
5306 let faded_color = |color: Hsla, alpha: f32| {
5307 let mut faded = color;
5308 faded.a = alpha;
5309 faded
5310 };
5311
5312 for indent_guide in indent_guides {
5313 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
5314 let settings = indent_guide.settings;
5315
5316 // TODO fixed for now, expose them through themes later
5317 const INDENT_AWARE_ALPHA: f32 = 0.2;
5318 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
5319 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
5320 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
5321
5322 let line_color = match (settings.coloring, indent_guide.active) {
5323 (IndentGuideColoring::Disabled, _) => None,
5324 (IndentGuideColoring::Fixed, false) => {
5325 Some(cx.theme().colors().editor_indent_guide)
5326 }
5327 (IndentGuideColoring::Fixed, true) => {
5328 Some(cx.theme().colors().editor_indent_guide_active)
5329 }
5330 (IndentGuideColoring::IndentAware, false) => {
5331 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
5332 }
5333 (IndentGuideColoring::IndentAware, true) => {
5334 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
5335 }
5336 };
5337
5338 let background_color = match (settings.background_coloring, indent_guide.active) {
5339 (IndentGuideBackgroundColoring::Disabled, _) => None,
5340 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
5341 indent_accent_colors,
5342 INDENT_AWARE_BACKGROUND_ALPHA,
5343 )),
5344 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
5345 indent_accent_colors,
5346 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
5347 )),
5348 };
5349
5350 let requested_line_width = if indent_guide.active {
5351 settings.active_line_width
5352 } else {
5353 settings.line_width
5354 }
5355 .clamp(1, 10);
5356 let mut line_indicator_width = 0.;
5357 if let Some(color) = line_color {
5358 window.paint_quad(fill(
5359 Bounds {
5360 origin: indent_guide.origin,
5361 size: size(px(requested_line_width as f32), indent_guide.length),
5362 },
5363 color,
5364 ));
5365 line_indicator_width = requested_line_width as f32;
5366 }
5367
5368 if let Some(color) = background_color {
5369 let width = indent_guide.single_indent_width - px(line_indicator_width);
5370 window.paint_quad(fill(
5371 Bounds {
5372 origin: point(
5373 indent_guide.origin.x + px(line_indicator_width),
5374 indent_guide.origin.y,
5375 ),
5376 size: size(width, indent_guide.length),
5377 },
5378 color,
5379 ));
5380 }
5381 }
5382 }
5383
5384 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5385 let is_singleton = self.editor.read(cx).is_singleton(cx);
5386
5387 let line_height = layout.position_map.line_height;
5388 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
5389
5390 for LineNumberLayout {
5391 shaped_line,
5392 hitbox,
5393 } in layout.line_numbers.values()
5394 {
5395 let Some(hitbox) = hitbox else {
5396 continue;
5397 };
5398
5399 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
5400 let color = cx.theme().colors().editor_hover_line_number;
5401
5402 let line = self.shape_line_number(shaped_line.text.clone(), color, window);
5403 line.paint(hitbox.origin, line_height, window, cx).log_err()
5404 } else {
5405 shaped_line
5406 .paint(hitbox.origin, line_height, window, cx)
5407 .log_err()
5408 }) else {
5409 continue;
5410 };
5411
5412 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
5413 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
5414 if is_singleton {
5415 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
5416 } else {
5417 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
5418 }
5419 }
5420 }
5421
5422 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5423 if layout.display_hunks.is_empty() {
5424 return;
5425 }
5426
5427 let line_height = layout.position_map.line_height;
5428 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5429 for (hunk, hitbox) in &layout.display_hunks {
5430 let hunk_to_paint = match hunk {
5431 DisplayDiffHunk::Folded { .. } => {
5432 let hunk_bounds = Self::diff_hunk_bounds(
5433 &layout.position_map.snapshot,
5434 line_height,
5435 layout.gutter_hitbox.bounds,
5436 &hunk,
5437 );
5438 Some((
5439 hunk_bounds,
5440 cx.theme().colors().version_control_modified,
5441 Corners::all(px(0.)),
5442 DiffHunkStatus::modified_none(),
5443 ))
5444 }
5445 DisplayDiffHunk::Unfolded {
5446 status,
5447 display_row_range,
5448 ..
5449 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
5450 DiffHunkStatusKind::Added => (
5451 hunk_hitbox.bounds,
5452 cx.theme().colors().version_control_added,
5453 Corners::all(px(0.)),
5454 *status,
5455 ),
5456 DiffHunkStatusKind::Modified => (
5457 hunk_hitbox.bounds,
5458 cx.theme().colors().version_control_modified,
5459 Corners::all(px(0.)),
5460 *status,
5461 ),
5462 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
5463 hunk_hitbox.bounds,
5464 cx.theme().colors().version_control_deleted,
5465 Corners::all(px(0.)),
5466 *status,
5467 ),
5468 DiffHunkStatusKind::Deleted => (
5469 Bounds::new(
5470 point(
5471 hunk_hitbox.origin.x - hunk_hitbox.size.width,
5472 hunk_hitbox.origin.y,
5473 ),
5474 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
5475 ),
5476 cx.theme().colors().version_control_deleted,
5477 Corners::all(1. * line_height),
5478 *status,
5479 ),
5480 }),
5481 };
5482
5483 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
5484 // Flatten the background color with the editor color to prevent
5485 // elements below transparent hunks from showing through
5486 let flattened_background_color = cx
5487 .theme()
5488 .colors()
5489 .editor_background
5490 .blend(background_color);
5491
5492 if !Self::diff_hunk_hollow(status, cx) {
5493 window.paint_quad(quad(
5494 hunk_bounds,
5495 corner_radii,
5496 flattened_background_color,
5497 Edges::default(),
5498 transparent_black(),
5499 BorderStyle::default(),
5500 ));
5501 } else {
5502 let flattened_unstaged_background_color = cx
5503 .theme()
5504 .colors()
5505 .editor_background
5506 .blend(background_color.opacity(0.3));
5507
5508 window.paint_quad(quad(
5509 hunk_bounds,
5510 corner_radii,
5511 flattened_unstaged_background_color,
5512 Edges::all(Pixels(1.0)),
5513 flattened_background_color,
5514 BorderStyle::Solid,
5515 ));
5516 }
5517 }
5518 }
5519 });
5520 }
5521
5522 fn gutter_strip_width(line_height: Pixels) -> Pixels {
5523 (0.275 * line_height).floor()
5524 }
5525
5526 fn diff_hunk_bounds(
5527 snapshot: &EditorSnapshot,
5528 line_height: Pixels,
5529 gutter_bounds: Bounds<Pixels>,
5530 hunk: &DisplayDiffHunk,
5531 ) -> Bounds<Pixels> {
5532 let scroll_position = snapshot.scroll_position();
5533 let scroll_top = scroll_position.y * line_height;
5534 let gutter_strip_width = Self::gutter_strip_width(line_height);
5535
5536 match hunk {
5537 DisplayDiffHunk::Folded { display_row, .. } => {
5538 let start_y = display_row.as_f32() * line_height - scroll_top;
5539 let end_y = start_y + line_height;
5540 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5541 let highlight_size = size(gutter_strip_width, end_y - start_y);
5542 Bounds::new(highlight_origin, highlight_size)
5543 }
5544 DisplayDiffHunk::Unfolded {
5545 display_row_range,
5546 status,
5547 ..
5548 } => {
5549 if status.is_deleted() && display_row_range.is_empty() {
5550 let row = display_row_range.start;
5551
5552 let offset = line_height / 2.;
5553 let start_y = row.as_f32() * line_height - offset - scroll_top;
5554 let end_y = start_y + line_height;
5555
5556 let width = (0.35 * line_height).floor();
5557 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5558 let highlight_size = size(width, end_y - start_y);
5559 Bounds::new(highlight_origin, highlight_size)
5560 } else {
5561 let start_row = display_row_range.start;
5562 let end_row = display_row_range.end;
5563 // If we're in a multibuffer, row range span might include an
5564 // excerpt header, so if we were to draw the marker straight away,
5565 // the hunk might include the rows of that header.
5566 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
5567 // Instead, we simply check whether the range we're dealing with includes
5568 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
5569 let end_row_in_current_excerpt = snapshot
5570 .blocks_in_range(start_row..end_row)
5571 .find_map(|(start_row, block)| {
5572 if matches!(block, Block::ExcerptBoundary { .. }) {
5573 Some(start_row)
5574 } else {
5575 None
5576 }
5577 })
5578 .unwrap_or(end_row);
5579
5580 let start_y = start_row.as_f32() * line_height - scroll_top;
5581 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
5582
5583 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5584 let highlight_size = size(gutter_strip_width, end_y - start_y);
5585 Bounds::new(highlight_origin, highlight_size)
5586 }
5587 }
5588 }
5589 }
5590
5591 fn paint_gutter_indicators(
5592 &self,
5593 layout: &mut EditorLayout,
5594 window: &mut Window,
5595 cx: &mut App,
5596 ) {
5597 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5598 window.with_element_namespace("crease_toggles", |window| {
5599 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
5600 crease_toggle.paint(window, cx);
5601 }
5602 });
5603
5604 window.with_element_namespace("expand_toggles", |window| {
5605 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
5606 expand_toggle.paint(window, cx);
5607 }
5608 });
5609
5610 for breakpoint in layout.breakpoints.iter_mut() {
5611 breakpoint.paint(window, cx);
5612 }
5613
5614 for test_indicator in layout.test_indicators.iter_mut() {
5615 test_indicator.paint(window, cx);
5616 }
5617 });
5618 }
5619
5620 fn paint_gutter_highlights(
5621 &self,
5622 layout: &mut EditorLayout,
5623 window: &mut Window,
5624 cx: &mut App,
5625 ) {
5626 for (_, hunk_hitbox) in &layout.display_hunks {
5627 if let Some(hunk_hitbox) = hunk_hitbox {
5628 if !self
5629 .editor
5630 .read(cx)
5631 .buffer()
5632 .read(cx)
5633 .all_diff_hunks_expanded()
5634 {
5635 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
5636 }
5637 }
5638 }
5639
5640 let show_git_gutter = layout
5641 .position_map
5642 .snapshot
5643 .show_git_diff_gutter
5644 .unwrap_or_else(|| {
5645 matches!(
5646 ProjectSettings::get_global(cx).git.git_gutter,
5647 Some(GitGutterSetting::TrackedFiles)
5648 )
5649 });
5650 if show_git_gutter {
5651 Self::paint_gutter_diff_hunks(layout, window, cx)
5652 }
5653
5654 let highlight_width = 0.275 * layout.position_map.line_height;
5655 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
5656 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5657 for (range, color) in &layout.highlighted_gutter_ranges {
5658 let start_row = if range.start.row() < layout.visible_display_row_range.start {
5659 layout.visible_display_row_range.start - DisplayRow(1)
5660 } else {
5661 range.start.row()
5662 };
5663 let end_row = if range.end.row() > layout.visible_display_row_range.end {
5664 layout.visible_display_row_range.end + DisplayRow(1)
5665 } else {
5666 range.end.row()
5667 };
5668
5669 let start_y = layout.gutter_hitbox.top()
5670 + start_row.0 as f32 * layout.position_map.line_height
5671 - layout.position_map.scroll_pixel_position.y;
5672 let end_y = layout.gutter_hitbox.top()
5673 + (end_row.0 + 1) as f32 * layout.position_map.line_height
5674 - layout.position_map.scroll_pixel_position.y;
5675 let bounds = Bounds::from_corners(
5676 point(layout.gutter_hitbox.left(), start_y),
5677 point(layout.gutter_hitbox.left() + highlight_width, end_y),
5678 );
5679 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
5680 }
5681 });
5682 }
5683
5684 fn paint_blamed_display_rows(
5685 &self,
5686 layout: &mut EditorLayout,
5687 window: &mut Window,
5688 cx: &mut App,
5689 ) {
5690 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
5691 return;
5692 };
5693
5694 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5695 for mut blame_element in blamed_display_rows.into_iter() {
5696 blame_element.paint(window, cx);
5697 }
5698 })
5699 }
5700
5701 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5702 window.with_content_mask(
5703 Some(ContentMask {
5704 bounds: layout.position_map.text_hitbox.bounds,
5705 }),
5706 |window| {
5707 let editor = self.editor.read(cx);
5708 if editor.mouse_cursor_hidden {
5709 window.set_window_cursor_style(CursorStyle::None);
5710 } else if matches!(
5711 editor.selection_drag_state,
5712 SelectionDragState::Dragging { .. }
5713 ) {
5714 window
5715 .set_cursor_style(CursorStyle::DragCopy, &layout.position_map.text_hitbox);
5716 } else if editor
5717 .hovered_link_state
5718 .as_ref()
5719 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
5720 {
5721 window.set_cursor_style(
5722 CursorStyle::PointingHand,
5723 &layout.position_map.text_hitbox,
5724 );
5725 } else {
5726 window.set_cursor_style(CursorStyle::IBeam, &layout.position_map.text_hitbox);
5727 };
5728
5729 self.paint_lines_background(layout, window, cx);
5730 let invisible_display_ranges = self.paint_highlights(layout, window);
5731 self.paint_document_colors(layout, window);
5732 self.paint_lines(&invisible_display_ranges, layout, window, cx);
5733 self.paint_redactions(layout, window);
5734 self.paint_cursors(layout, window, cx);
5735 self.paint_inline_diagnostics(layout, window, cx);
5736 self.paint_inline_blame(layout, window, cx);
5737 self.paint_inline_code_actions(layout, window, cx);
5738 self.paint_diff_hunk_controls(layout, window, cx);
5739 window.with_element_namespace("crease_trailers", |window| {
5740 for trailer in layout.crease_trailers.iter_mut().flatten() {
5741 trailer.element.paint(window, cx);
5742 }
5743 });
5744 },
5745 )
5746 }
5747
5748 fn paint_highlights(
5749 &mut self,
5750 layout: &mut EditorLayout,
5751 window: &mut Window,
5752 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
5753 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5754 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
5755 let line_end_overshoot = 0.15 * layout.position_map.line_height;
5756 for (range, color) in &layout.highlighted_ranges {
5757 self.paint_highlighted_range(
5758 range.clone(),
5759 true,
5760 *color,
5761 Pixels::ZERO,
5762 line_end_overshoot,
5763 layout,
5764 window,
5765 );
5766 }
5767
5768 let corner_radius = 0.15 * layout.position_map.line_height;
5769
5770 for (player_color, selections) in &layout.selections {
5771 for selection in selections.iter() {
5772 self.paint_highlighted_range(
5773 selection.range.clone(),
5774 true,
5775 player_color.selection,
5776 corner_radius,
5777 corner_radius * 2.,
5778 layout,
5779 window,
5780 );
5781
5782 if selection.is_local && !selection.range.is_empty() {
5783 invisible_display_ranges.push(selection.range.clone());
5784 }
5785 }
5786 }
5787 invisible_display_ranges
5788 })
5789 }
5790
5791 fn paint_lines(
5792 &mut self,
5793 invisible_display_ranges: &[Range<DisplayPoint>],
5794 layout: &mut EditorLayout,
5795 window: &mut Window,
5796 cx: &mut App,
5797 ) {
5798 let whitespace_setting = self
5799 .editor
5800 .read(cx)
5801 .buffer
5802 .read(cx)
5803 .language_settings(cx)
5804 .show_whitespaces;
5805
5806 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
5807 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
5808 line_with_invisibles.draw(
5809 layout,
5810 row,
5811 layout.content_origin,
5812 whitespace_setting,
5813 invisible_display_ranges,
5814 window,
5815 cx,
5816 )
5817 }
5818
5819 for line_element in &mut layout.line_elements {
5820 line_element.paint(window, cx);
5821 }
5822 }
5823
5824 fn paint_lines_background(
5825 &mut self,
5826 layout: &mut EditorLayout,
5827 window: &mut Window,
5828 cx: &mut App,
5829 ) {
5830 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
5831 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
5832 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
5833 }
5834 }
5835
5836 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
5837 if layout.redacted_ranges.is_empty() {
5838 return;
5839 }
5840
5841 let line_end_overshoot = layout.line_end_overshoot();
5842
5843 // A softer than perfect black
5844 let redaction_color = gpui::rgb(0x0e1111);
5845
5846 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5847 for range in layout.redacted_ranges.iter() {
5848 self.paint_highlighted_range(
5849 range.clone(),
5850 true,
5851 redaction_color.into(),
5852 Pixels::ZERO,
5853 line_end_overshoot,
5854 layout,
5855 window,
5856 );
5857 }
5858 });
5859 }
5860
5861 fn paint_document_colors(&self, layout: &mut EditorLayout, window: &mut Window) {
5862 let Some((colors_render_mode, image_colors)) = &layout.document_colors else {
5863 return;
5864 };
5865 if image_colors.is_empty()
5866 || colors_render_mode == &DocumentColorsRenderMode::None
5867 || colors_render_mode == &DocumentColorsRenderMode::Inlay
5868 {
5869 return;
5870 }
5871
5872 let line_end_overshoot = layout.line_end_overshoot();
5873
5874 for (range, color) in image_colors {
5875 match colors_render_mode {
5876 DocumentColorsRenderMode::Inlay | DocumentColorsRenderMode::None => return,
5877 DocumentColorsRenderMode::Background => {
5878 self.paint_highlighted_range(
5879 range.clone(),
5880 true,
5881 *color,
5882 Pixels::ZERO,
5883 line_end_overshoot,
5884 layout,
5885 window,
5886 );
5887 }
5888 DocumentColorsRenderMode::Border => {
5889 self.paint_highlighted_range(
5890 range.clone(),
5891 false,
5892 *color,
5893 Pixels::ZERO,
5894 line_end_overshoot,
5895 layout,
5896 window,
5897 );
5898 }
5899 }
5900 }
5901 }
5902
5903 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5904 for cursor in &mut layout.visible_cursors {
5905 cursor.paint(layout.content_origin, window, cx);
5906 }
5907 }
5908
5909 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5910 let Some(scrollbars_layout) = layout.scrollbars_layout.take() else {
5911 return;
5912 };
5913 let any_scrollbar_dragged = self.editor.read(cx).scroll_manager.any_scrollbar_dragged();
5914
5915 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
5916 let hitbox = &scrollbar_layout.hitbox;
5917 if scrollbars_layout.visible {
5918 let scrollbar_edges = match axis {
5919 ScrollbarAxis::Horizontal => Edges {
5920 top: Pixels::ZERO,
5921 right: Pixels::ZERO,
5922 bottom: Pixels::ZERO,
5923 left: Pixels::ZERO,
5924 },
5925 ScrollbarAxis::Vertical => Edges {
5926 top: Pixels::ZERO,
5927 right: Pixels::ZERO,
5928 bottom: Pixels::ZERO,
5929 left: ScrollbarLayout::BORDER_WIDTH,
5930 },
5931 };
5932
5933 window.paint_layer(hitbox.bounds, |window| {
5934 window.paint_quad(quad(
5935 hitbox.bounds,
5936 Corners::default(),
5937 cx.theme().colors().scrollbar_track_background,
5938 scrollbar_edges,
5939 cx.theme().colors().scrollbar_track_border,
5940 BorderStyle::Solid,
5941 ));
5942
5943 if axis == ScrollbarAxis::Vertical {
5944 let fast_markers =
5945 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
5946 // Refresh slow scrollbar markers in the background. Below, we
5947 // paint whatever markers have already been computed.
5948 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
5949
5950 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
5951 for marker in markers.iter().chain(&fast_markers) {
5952 let mut marker = marker.clone();
5953 marker.bounds.origin += hitbox.origin;
5954 window.paint_quad(marker);
5955 }
5956 }
5957
5958 if let Some(thumb_bounds) = scrollbar_layout.thumb_bounds {
5959 let scrollbar_thumb_color = match scrollbar_layout.thumb_state {
5960 ScrollbarThumbState::Dragging => {
5961 cx.theme().colors().scrollbar_thumb_active_background
5962 }
5963 ScrollbarThumbState::Hovered => {
5964 cx.theme().colors().scrollbar_thumb_hover_background
5965 }
5966 ScrollbarThumbState::Idle => {
5967 cx.theme().colors().scrollbar_thumb_background
5968 }
5969 };
5970 window.paint_quad(quad(
5971 thumb_bounds,
5972 Corners::default(),
5973 scrollbar_thumb_color,
5974 scrollbar_edges,
5975 cx.theme().colors().scrollbar_thumb_border,
5976 BorderStyle::Solid,
5977 ));
5978
5979 if any_scrollbar_dragged {
5980 window.set_window_cursor_style(CursorStyle::Arrow);
5981 } else {
5982 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
5983 }
5984 }
5985 })
5986 }
5987 }
5988
5989 window.on_mouse_event({
5990 let editor = self.editor.clone();
5991 let scrollbars_layout = scrollbars_layout.clone();
5992
5993 let mut mouse_position = window.mouse_position();
5994 move |event: &MouseMoveEvent, phase, window, cx| {
5995 if phase == DispatchPhase::Capture {
5996 return;
5997 }
5998
5999 editor.update(cx, |editor, cx| {
6000 if let Some((scrollbar_layout, axis)) = event
6001 .pressed_button
6002 .filter(|button| *button == MouseButton::Left)
6003 .and(editor.scroll_manager.dragging_scrollbar_axis())
6004 .and_then(|axis| {
6005 scrollbars_layout
6006 .iter_scrollbars()
6007 .find(|(_, a)| *a == axis)
6008 })
6009 {
6010 let ScrollbarLayout {
6011 hitbox,
6012 text_unit_size,
6013 ..
6014 } = scrollbar_layout;
6015
6016 let old_position = mouse_position.along(axis);
6017 let new_position = event.position.along(axis);
6018 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
6019 .contains(&old_position)
6020 {
6021 let position = editor.scroll_position(cx).apply_along(axis, |p| {
6022 (p + (new_position - old_position) / *text_unit_size).max(0.)
6023 });
6024 editor.set_scroll_position(position, window, cx);
6025 }
6026
6027 editor.scroll_manager.show_scrollbars(window, cx);
6028 cx.stop_propagation();
6029 } else if let Some((layout, axis)) = scrollbars_layout
6030 .get_hovered_axis(window)
6031 .filter(|_| !event.dragging())
6032 {
6033 if layout.thumb_hovered(&event.position) {
6034 editor
6035 .scroll_manager
6036 .set_hovered_scroll_thumb_axis(axis, cx);
6037 } else {
6038 editor.scroll_manager.reset_scrollbar_state(cx);
6039 }
6040
6041 editor.scroll_manager.show_scrollbars(window, cx);
6042 } else {
6043 editor.scroll_manager.reset_scrollbar_state(cx);
6044 }
6045
6046 mouse_position = event.position;
6047 })
6048 }
6049 });
6050
6051 if any_scrollbar_dragged {
6052 window.on_mouse_event({
6053 let editor = self.editor.clone();
6054 move |_: &MouseUpEvent, phase, window, cx| {
6055 if phase == DispatchPhase::Capture {
6056 return;
6057 }
6058
6059 editor.update(cx, |editor, cx| {
6060 if let Some((_, axis)) = scrollbars_layout.get_hovered_axis(window) {
6061 editor
6062 .scroll_manager
6063 .set_hovered_scroll_thumb_axis(axis, cx);
6064 } else {
6065 editor.scroll_manager.reset_scrollbar_state(cx);
6066 }
6067 cx.stop_propagation();
6068 });
6069 }
6070 });
6071 } else {
6072 window.on_mouse_event({
6073 let editor = self.editor.clone();
6074
6075 move |event: &MouseDownEvent, phase, window, cx| {
6076 if phase == DispatchPhase::Capture {
6077 return;
6078 }
6079 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
6080 else {
6081 return;
6082 };
6083
6084 let ScrollbarLayout {
6085 hitbox,
6086 visible_range,
6087 text_unit_size,
6088 thumb_bounds,
6089 ..
6090 } = scrollbar_layout;
6091
6092 let Some(thumb_bounds) = thumb_bounds else {
6093 return;
6094 };
6095
6096 editor.update(cx, |editor, cx| {
6097 editor
6098 .scroll_manager
6099 .set_dragged_scroll_thumb_axis(axis, cx);
6100
6101 let event_position = event.position.along(axis);
6102
6103 if event_position < thumb_bounds.origin.along(axis)
6104 || thumb_bounds.bottom_right().along(axis) < event_position
6105 {
6106 let center_position = ((event_position - hitbox.origin.along(axis))
6107 / *text_unit_size)
6108 .round() as u32;
6109 let start_position = center_position.saturating_sub(
6110 (visible_range.end - visible_range.start) as u32 / 2,
6111 );
6112
6113 let position = editor
6114 .scroll_position(cx)
6115 .apply_along(axis, |_| start_position as f32);
6116
6117 editor.set_scroll_position(position, window, cx);
6118 } else {
6119 editor.scroll_manager.show_scrollbars(window, cx);
6120 }
6121
6122 cx.stop_propagation();
6123 });
6124 }
6125 });
6126 }
6127 }
6128
6129 fn collect_fast_scrollbar_markers(
6130 &self,
6131 layout: &EditorLayout,
6132 scrollbar_layout: &ScrollbarLayout,
6133 cx: &mut App,
6134 ) -> Vec<PaintQuad> {
6135 const LIMIT: usize = 100;
6136 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
6137 return vec![];
6138 }
6139 let cursor_ranges = layout
6140 .cursors
6141 .iter()
6142 .map(|(point, color)| ColoredRange {
6143 start: point.row(),
6144 end: point.row(),
6145 color: *color,
6146 })
6147 .collect_vec();
6148 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
6149 }
6150
6151 fn refresh_slow_scrollbar_markers(
6152 &self,
6153 layout: &EditorLayout,
6154 scrollbar_layout: &ScrollbarLayout,
6155 window: &mut Window,
6156 cx: &mut App,
6157 ) {
6158 self.editor.update(cx, |editor, cx| {
6159 if !editor.is_singleton(cx)
6160 || !editor
6161 .scrollbar_marker_state
6162 .should_refresh(scrollbar_layout.hitbox.size)
6163 {
6164 return;
6165 }
6166
6167 let scrollbar_layout = scrollbar_layout.clone();
6168 let background_highlights = editor.background_highlights.clone();
6169 let snapshot = layout.position_map.snapshot.clone();
6170 let theme = cx.theme().clone();
6171 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
6172
6173 editor.scrollbar_marker_state.dirty = false;
6174 editor.scrollbar_marker_state.pending_refresh =
6175 Some(cx.spawn_in(window, async move |editor, cx| {
6176 let scrollbar_size = scrollbar_layout.hitbox.size;
6177 let scrollbar_markers = cx
6178 .background_spawn(async move {
6179 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
6180 let mut marker_quads = Vec::new();
6181 if scrollbar_settings.git_diff {
6182 let marker_row_ranges =
6183 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
6184 let start_display_row =
6185 MultiBufferPoint::new(hunk.row_range.start.0, 0)
6186 .to_display_point(&snapshot.display_snapshot)
6187 .row();
6188 let mut end_display_row =
6189 MultiBufferPoint::new(hunk.row_range.end.0, 0)
6190 .to_display_point(&snapshot.display_snapshot)
6191 .row();
6192 if end_display_row != start_display_row {
6193 end_display_row.0 -= 1;
6194 }
6195 let color = match &hunk.status().kind {
6196 DiffHunkStatusKind::Added => {
6197 theme.colors().version_control_added
6198 }
6199 DiffHunkStatusKind::Modified => {
6200 theme.colors().version_control_modified
6201 }
6202 DiffHunkStatusKind::Deleted => {
6203 theme.colors().version_control_deleted
6204 }
6205 };
6206 ColoredRange {
6207 start: start_display_row,
6208 end: end_display_row,
6209 color,
6210 }
6211 });
6212
6213 marker_quads.extend(
6214 scrollbar_layout
6215 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
6216 );
6217 }
6218
6219 for (background_highlight_id, (_, background_ranges)) in
6220 background_highlights.iter()
6221 {
6222 let is_search_highlights = *background_highlight_id
6223 == HighlightKey::Type(TypeId::of::<BufferSearchHighlights>());
6224 let is_text_highlights = *background_highlight_id
6225 == HighlightKey::Type(TypeId::of::<SelectedTextHighlight>());
6226 let is_symbol_occurrences = *background_highlight_id
6227 == HighlightKey::Type(TypeId::of::<DocumentHighlightRead>())
6228 || *background_highlight_id
6229 == HighlightKey::Type(
6230 TypeId::of::<DocumentHighlightWrite>(),
6231 );
6232 if (is_search_highlights && scrollbar_settings.search_results)
6233 || (is_text_highlights && scrollbar_settings.selected_text)
6234 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
6235 {
6236 let mut color = theme.status().info;
6237 if is_symbol_occurrences {
6238 color.fade_out(0.5);
6239 }
6240 let marker_row_ranges = background_ranges.iter().map(|range| {
6241 let display_start = range
6242 .start
6243 .to_display_point(&snapshot.display_snapshot);
6244 let display_end =
6245 range.end.to_display_point(&snapshot.display_snapshot);
6246 ColoredRange {
6247 start: display_start.row(),
6248 end: display_end.row(),
6249 color,
6250 }
6251 });
6252 marker_quads.extend(
6253 scrollbar_layout
6254 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
6255 );
6256 }
6257 }
6258
6259 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
6260 let diagnostics = snapshot
6261 .buffer_snapshot
6262 .diagnostics_in_range::<Point>(Point::zero()..max_point)
6263 // Don't show diagnostics the user doesn't care about
6264 .filter(|diagnostic| {
6265 match (
6266 scrollbar_settings.diagnostics,
6267 diagnostic.diagnostic.severity,
6268 ) {
6269 (ScrollbarDiagnostics::All, _) => true,
6270 (
6271 ScrollbarDiagnostics::Error,
6272 lsp::DiagnosticSeverity::ERROR,
6273 ) => true,
6274 (
6275 ScrollbarDiagnostics::Warning,
6276 lsp::DiagnosticSeverity::ERROR
6277 | lsp::DiagnosticSeverity::WARNING,
6278 ) => true,
6279 (
6280 ScrollbarDiagnostics::Information,
6281 lsp::DiagnosticSeverity::ERROR
6282 | lsp::DiagnosticSeverity::WARNING
6283 | lsp::DiagnosticSeverity::INFORMATION,
6284 ) => true,
6285 (_, _) => false,
6286 }
6287 })
6288 // We want to sort by severity, in order to paint the most severe diagnostics last.
6289 .sorted_by_key(|diagnostic| {
6290 std::cmp::Reverse(diagnostic.diagnostic.severity)
6291 });
6292
6293 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
6294 let start_display = diagnostic
6295 .range
6296 .start
6297 .to_display_point(&snapshot.display_snapshot);
6298 let end_display = diagnostic
6299 .range
6300 .end
6301 .to_display_point(&snapshot.display_snapshot);
6302 let color = match diagnostic.diagnostic.severity {
6303 lsp::DiagnosticSeverity::ERROR => theme.status().error,
6304 lsp::DiagnosticSeverity::WARNING => theme.status().warning,
6305 lsp::DiagnosticSeverity::INFORMATION => theme.status().info,
6306 _ => theme.status().hint,
6307 };
6308 ColoredRange {
6309 start: start_display.row(),
6310 end: end_display.row(),
6311 color,
6312 }
6313 });
6314 marker_quads.extend(
6315 scrollbar_layout
6316 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
6317 );
6318 }
6319
6320 Arc::from(marker_quads)
6321 })
6322 .await;
6323
6324 editor.update(cx, |editor, cx| {
6325 editor.scrollbar_marker_state.markers = scrollbar_markers;
6326 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
6327 editor.scrollbar_marker_state.pending_refresh = None;
6328 cx.notify();
6329 })?;
6330
6331 Ok(())
6332 }));
6333 });
6334 }
6335
6336 fn paint_highlighted_range(
6337 &self,
6338 range: Range<DisplayPoint>,
6339 fill: bool,
6340 color: Hsla,
6341 corner_radius: Pixels,
6342 line_end_overshoot: Pixels,
6343 layout: &EditorLayout,
6344 window: &mut Window,
6345 ) {
6346 let start_row = layout.visible_display_row_range.start;
6347 let end_row = layout.visible_display_row_range.end;
6348 if range.start != range.end {
6349 let row_range = if range.end.column() == 0 {
6350 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
6351 } else {
6352 cmp::max(range.start.row(), start_row)
6353 ..cmp::min(range.end.row().next_row(), end_row)
6354 };
6355
6356 let highlighted_range = HighlightedRange {
6357 color,
6358 line_height: layout.position_map.line_height,
6359 corner_radius,
6360 start_y: layout.content_origin.y
6361 + row_range.start.as_f32() * layout.position_map.line_height
6362 - layout.position_map.scroll_pixel_position.y,
6363 lines: row_range
6364 .iter_rows()
6365 .map(|row| {
6366 let line_layout =
6367 &layout.position_map.line_layouts[row.minus(start_row) as usize];
6368 HighlightedRangeLine {
6369 start_x: if row == range.start.row() {
6370 layout.content_origin.x
6371 + line_layout.x_for_index(range.start.column() as usize)
6372 - layout.position_map.scroll_pixel_position.x
6373 } else {
6374 layout.content_origin.x
6375 - layout.position_map.scroll_pixel_position.x
6376 },
6377 end_x: if row == range.end.row() {
6378 layout.content_origin.x
6379 + line_layout.x_for_index(range.end.column() as usize)
6380 - layout.position_map.scroll_pixel_position.x
6381 } else {
6382 layout.content_origin.x + line_layout.width + line_end_overshoot
6383 - layout.position_map.scroll_pixel_position.x
6384 },
6385 }
6386 })
6387 .collect(),
6388 };
6389
6390 highlighted_range.paint(fill, layout.position_map.text_hitbox.bounds, window);
6391 }
6392 }
6393
6394 fn paint_inline_diagnostics(
6395 &mut self,
6396 layout: &mut EditorLayout,
6397 window: &mut Window,
6398 cx: &mut App,
6399 ) {
6400 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
6401 inline_diagnostic.1.paint(window, cx);
6402 }
6403 }
6404
6405 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6406 if let Some(mut blame_layout) = layout.inline_blame_layout.take() {
6407 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6408 blame_layout.element.paint(window, cx);
6409 })
6410 }
6411 }
6412
6413 fn paint_inline_code_actions(
6414 &mut self,
6415 layout: &mut EditorLayout,
6416 window: &mut Window,
6417 cx: &mut App,
6418 ) {
6419 if let Some(mut inline_code_actions) = layout.inline_code_actions.take() {
6420 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6421 inline_code_actions.paint(window, cx);
6422 })
6423 }
6424 }
6425
6426 fn paint_diff_hunk_controls(
6427 &mut self,
6428 layout: &mut EditorLayout,
6429 window: &mut Window,
6430 cx: &mut App,
6431 ) {
6432 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
6433 diff_hunk_control.paint(window, cx);
6434 }
6435 }
6436
6437 fn paint_minimap(&self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6438 if let Some(mut layout) = layout.minimap.take() {
6439 let minimap_hitbox = layout.thumb_layout.hitbox.clone();
6440 let dragging_minimap = self.editor.read(cx).scroll_manager.is_dragging_minimap();
6441
6442 window.paint_layer(layout.thumb_layout.hitbox.bounds, |window| {
6443 window.with_element_namespace("minimap", |window| {
6444 layout.minimap.paint(window, cx);
6445 if let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds {
6446 let minimap_thumb_color = match layout.thumb_layout.thumb_state {
6447 ScrollbarThumbState::Idle => {
6448 cx.theme().colors().minimap_thumb_background
6449 }
6450 ScrollbarThumbState::Hovered => {
6451 cx.theme().colors().minimap_thumb_hover_background
6452 }
6453 ScrollbarThumbState::Dragging => {
6454 cx.theme().colors().minimap_thumb_active_background
6455 }
6456 };
6457 let minimap_thumb_border = match layout.thumb_border_style {
6458 MinimapThumbBorder::Full => Edges::all(ScrollbarLayout::BORDER_WIDTH),
6459 MinimapThumbBorder::LeftOnly => Edges {
6460 left: ScrollbarLayout::BORDER_WIDTH,
6461 ..Default::default()
6462 },
6463 MinimapThumbBorder::LeftOpen => Edges {
6464 right: ScrollbarLayout::BORDER_WIDTH,
6465 top: ScrollbarLayout::BORDER_WIDTH,
6466 bottom: ScrollbarLayout::BORDER_WIDTH,
6467 ..Default::default()
6468 },
6469 MinimapThumbBorder::RightOpen => Edges {
6470 left: ScrollbarLayout::BORDER_WIDTH,
6471 top: ScrollbarLayout::BORDER_WIDTH,
6472 bottom: ScrollbarLayout::BORDER_WIDTH,
6473 ..Default::default()
6474 },
6475 MinimapThumbBorder::None => Default::default(),
6476 };
6477
6478 window.paint_layer(minimap_hitbox.bounds, |window| {
6479 window.paint_quad(quad(
6480 thumb_bounds,
6481 Corners::default(),
6482 minimap_thumb_color,
6483 minimap_thumb_border,
6484 cx.theme().colors().minimap_thumb_border,
6485 BorderStyle::Solid,
6486 ));
6487 });
6488 }
6489 });
6490 });
6491
6492 if dragging_minimap {
6493 window.set_window_cursor_style(CursorStyle::Arrow);
6494 } else {
6495 window.set_cursor_style(CursorStyle::Arrow, &minimap_hitbox);
6496 }
6497
6498 let minimap_axis = ScrollbarAxis::Vertical;
6499 let pixels_per_line = (minimap_hitbox.size.height / layout.max_scroll_top)
6500 .min(layout.minimap_line_height);
6501
6502 let mut mouse_position = window.mouse_position();
6503
6504 window.on_mouse_event({
6505 let editor = self.editor.clone();
6506
6507 let minimap_hitbox = minimap_hitbox.clone();
6508
6509 move |event: &MouseMoveEvent, phase, window, cx| {
6510 if phase == DispatchPhase::Capture {
6511 return;
6512 }
6513
6514 editor.update(cx, |editor, cx| {
6515 if event.pressed_button == Some(MouseButton::Left)
6516 && editor.scroll_manager.is_dragging_minimap()
6517 {
6518 let old_position = mouse_position.along(minimap_axis);
6519 let new_position = event.position.along(minimap_axis);
6520 if (minimap_hitbox.origin.along(minimap_axis)
6521 ..minimap_hitbox.bottom_right().along(minimap_axis))
6522 .contains(&old_position)
6523 {
6524 let position =
6525 editor.scroll_position(cx).apply_along(minimap_axis, |p| {
6526 (p + (new_position - old_position) / pixels_per_line)
6527 .max(0.)
6528 });
6529 editor.set_scroll_position(position, window, cx);
6530 }
6531 cx.stop_propagation();
6532 } else {
6533 if minimap_hitbox.is_hovered(window) {
6534 editor.scroll_manager.set_is_hovering_minimap_thumb(
6535 !event.dragging()
6536 && layout
6537 .thumb_layout
6538 .thumb_bounds
6539 .is_some_and(|bounds| bounds.contains(&event.position)),
6540 cx,
6541 );
6542
6543 // Stop hover events from propagating to the
6544 // underlying editor if the minimap hitbox is hovered
6545 if !event.dragging() {
6546 cx.stop_propagation();
6547 }
6548 } else {
6549 editor.scroll_manager.hide_minimap_thumb(cx);
6550 }
6551 }
6552 mouse_position = event.position;
6553 });
6554 }
6555 });
6556
6557 if dragging_minimap {
6558 window.on_mouse_event({
6559 let editor = self.editor.clone();
6560 move |event: &MouseUpEvent, phase, window, cx| {
6561 if phase == DispatchPhase::Capture {
6562 return;
6563 }
6564
6565 editor.update(cx, |editor, cx| {
6566 if minimap_hitbox.is_hovered(window) {
6567 editor.scroll_manager.set_is_hovering_minimap_thumb(
6568 layout
6569 .thumb_layout
6570 .thumb_bounds
6571 .is_some_and(|bounds| bounds.contains(&event.position)),
6572 cx,
6573 );
6574 } else {
6575 editor.scroll_manager.hide_minimap_thumb(cx);
6576 }
6577 cx.stop_propagation();
6578 });
6579 }
6580 });
6581 } else {
6582 window.on_mouse_event({
6583 let editor = self.editor.clone();
6584
6585 move |event: &MouseDownEvent, phase, window, cx| {
6586 if phase == DispatchPhase::Capture || !minimap_hitbox.is_hovered(window) {
6587 return;
6588 }
6589
6590 let event_position = event.position;
6591
6592 let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds else {
6593 return;
6594 };
6595
6596 editor.update(cx, |editor, cx| {
6597 if !thumb_bounds.contains(&event_position) {
6598 let click_position =
6599 event_position.relative_to(&minimap_hitbox.origin).y;
6600
6601 let top_position = (click_position
6602 - thumb_bounds.size.along(minimap_axis) / 2.0)
6603 .max(Pixels::ZERO);
6604
6605 let scroll_offset = (layout.minimap_scroll_top
6606 + top_position / layout.minimap_line_height)
6607 .min(layout.max_scroll_top);
6608
6609 let scroll_position = editor
6610 .scroll_position(cx)
6611 .apply_along(minimap_axis, |_| scroll_offset);
6612 editor.set_scroll_position(scroll_position, window, cx);
6613 }
6614
6615 editor.scroll_manager.set_is_dragging_minimap(cx);
6616 cx.stop_propagation();
6617 });
6618 }
6619 });
6620 }
6621 }
6622 }
6623
6624 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6625 for mut block in layout.blocks.drain(..) {
6626 if block.overlaps_gutter {
6627 block.element.paint(window, cx);
6628 } else {
6629 let mut bounds = layout.hitbox.bounds;
6630 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
6631 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6632 block.element.paint(window, cx);
6633 })
6634 }
6635 }
6636 }
6637
6638 fn paint_inline_completion_popover(
6639 &mut self,
6640 layout: &mut EditorLayout,
6641 window: &mut Window,
6642 cx: &mut App,
6643 ) {
6644 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
6645 inline_completion_popover.paint(window, cx);
6646 }
6647 }
6648
6649 fn paint_mouse_context_menu(
6650 &mut self,
6651 layout: &mut EditorLayout,
6652 window: &mut Window,
6653 cx: &mut App,
6654 ) {
6655 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
6656 mouse_context_menu.paint(window, cx);
6657 }
6658 }
6659
6660 fn paint_scroll_wheel_listener(
6661 &mut self,
6662 layout: &EditorLayout,
6663 window: &mut Window,
6664 cx: &mut App,
6665 ) {
6666 window.on_mouse_event({
6667 let position_map = layout.position_map.clone();
6668 let editor = self.editor.clone();
6669 let hitbox = layout.hitbox.clone();
6670 let mut delta = ScrollDelta::default();
6671
6672 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
6673 // accidentally turn off their scrolling.
6674 let base_scroll_sensitivity =
6675 EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
6676
6677 // Use a minimum fast_scroll_sensitivity for same reason above
6678 let fast_scroll_sensitivity = EditorSettings::get_global(cx)
6679 .fast_scroll_sensitivity
6680 .max(0.01);
6681
6682 move |event: &ScrollWheelEvent, phase, window, cx| {
6683 let scroll_sensitivity = {
6684 if event.modifiers.alt {
6685 fast_scroll_sensitivity
6686 } else {
6687 base_scroll_sensitivity
6688 }
6689 };
6690
6691 if phase == DispatchPhase::Bubble && hitbox.should_handle_scroll(window) {
6692 delta = delta.coalesce(event.delta);
6693 editor.update(cx, |editor, cx| {
6694 let position_map: &PositionMap = &position_map;
6695
6696 let line_height = position_map.line_height;
6697 let max_glyph_advance = position_map.em_advance;
6698 let (delta, axis) = match delta {
6699 gpui::ScrollDelta::Pixels(mut pixels) => {
6700 //Trackpad
6701 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
6702 (pixels, axis)
6703 }
6704
6705 gpui::ScrollDelta::Lines(lines) => {
6706 //Not trackpad
6707 let pixels =
6708 point(lines.x * max_glyph_advance, lines.y * line_height);
6709 (pixels, None)
6710 }
6711 };
6712
6713 let current_scroll_position = position_map.snapshot.scroll_position();
6714 let x = (current_scroll_position.x * max_glyph_advance
6715 - (delta.x * scroll_sensitivity))
6716 / max_glyph_advance;
6717 let y = (current_scroll_position.y * line_height
6718 - (delta.y * scroll_sensitivity))
6719 / line_height;
6720 let mut scroll_position =
6721 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
6722 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
6723 if forbid_vertical_scroll {
6724 scroll_position.y = current_scroll_position.y;
6725 }
6726
6727 if scroll_position != current_scroll_position {
6728 editor.scroll(scroll_position, axis, window, cx);
6729 cx.stop_propagation();
6730 } else if y < 0. {
6731 // Due to clamping, we may fail to detect cases of overscroll to the top;
6732 // We want the scroll manager to get an update in such cases and detect the change of direction
6733 // on the next frame.
6734 cx.notify();
6735 }
6736 });
6737 }
6738 }
6739 });
6740 }
6741
6742 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
6743 if self.editor.read(cx).mode.is_minimap() {
6744 return;
6745 }
6746
6747 self.paint_scroll_wheel_listener(layout, window, cx);
6748
6749 window.on_mouse_event({
6750 let position_map = layout.position_map.clone();
6751 let editor = self.editor.clone();
6752 let diff_hunk_range =
6753 layout
6754 .display_hunks
6755 .iter()
6756 .find_map(|(hunk, hunk_hitbox)| match hunk {
6757 DisplayDiffHunk::Folded { .. } => None,
6758 DisplayDiffHunk::Unfolded {
6759 multi_buffer_range, ..
6760 } => {
6761 if hunk_hitbox
6762 .as_ref()
6763 .map(|hitbox| hitbox.is_hovered(window))
6764 .unwrap_or(false)
6765 {
6766 Some(multi_buffer_range.clone())
6767 } else {
6768 None
6769 }
6770 }
6771 });
6772 let line_numbers = layout.line_numbers.clone();
6773
6774 move |event: &MouseDownEvent, phase, window, cx| {
6775 if phase == DispatchPhase::Bubble {
6776 match event.button {
6777 MouseButton::Left => editor.update(cx, |editor, cx| {
6778 let pending_mouse_down = editor
6779 .pending_mouse_down
6780 .get_or_insert_with(Default::default)
6781 .clone();
6782
6783 *pending_mouse_down.borrow_mut() = Some(event.clone());
6784
6785 Self::mouse_left_down(
6786 editor,
6787 event,
6788 diff_hunk_range.clone(),
6789 &position_map,
6790 line_numbers.as_ref(),
6791 window,
6792 cx,
6793 );
6794 }),
6795 MouseButton::Right => editor.update(cx, |editor, cx| {
6796 Self::mouse_right_down(editor, event, &position_map, window, cx);
6797 }),
6798 MouseButton::Middle => editor.update(cx, |editor, cx| {
6799 Self::mouse_middle_down(editor, event, &position_map, window, cx);
6800 }),
6801 _ => {}
6802 };
6803 }
6804 }
6805 });
6806
6807 window.on_mouse_event({
6808 let editor = self.editor.clone();
6809 let position_map = layout.position_map.clone();
6810
6811 move |event: &MouseUpEvent, phase, window, cx| {
6812 if phase == DispatchPhase::Bubble {
6813 editor.update(cx, |editor, cx| {
6814 Self::mouse_up(editor, event, &position_map, window, cx)
6815 });
6816 }
6817 }
6818 });
6819
6820 window.on_mouse_event({
6821 let editor = self.editor.clone();
6822 let position_map = layout.position_map.clone();
6823 let mut captured_mouse_down = None;
6824
6825 move |event: &MouseUpEvent, phase, window, cx| match phase {
6826 // Clear the pending mouse down during the capture phase,
6827 // so that it happens even if another event handler stops
6828 // propagation.
6829 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
6830 let pending_mouse_down = editor
6831 .pending_mouse_down
6832 .get_or_insert_with(Default::default)
6833 .clone();
6834
6835 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
6836 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
6837 captured_mouse_down = pending_mouse_down.take();
6838 window.refresh();
6839 }
6840 }),
6841 // Fire click handlers during the bubble phase.
6842 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
6843 if let Some(mouse_down) = captured_mouse_down.take() {
6844 let event = ClickEvent {
6845 down: mouse_down,
6846 up: event.clone(),
6847 };
6848 Self::click(editor, &event, &position_map, window, cx);
6849 }
6850 }),
6851 }
6852 });
6853
6854 window.on_mouse_event({
6855 let position_map = layout.position_map.clone();
6856 let editor = self.editor.clone();
6857
6858 move |event: &MouseMoveEvent, phase, window, cx| {
6859 if phase == DispatchPhase::Bubble {
6860 editor.update(cx, |editor, cx| {
6861 if editor.hover_state.focused(window, cx) {
6862 return;
6863 }
6864 if event.pressed_button == Some(MouseButton::Left)
6865 || event.pressed_button == Some(MouseButton::Middle)
6866 {
6867 Self::mouse_dragged(editor, event, &position_map, window, cx)
6868 }
6869
6870 Self::mouse_moved(editor, event, &position_map, window, cx)
6871 });
6872 }
6873 }
6874 });
6875 }
6876
6877 fn column_pixels(&self, column: usize, window: &Window) -> Pixels {
6878 let style = &self.style;
6879 let font_size = style.text.font_size.to_pixels(window.rem_size());
6880 let layout = window.text_system().shape_line(
6881 SharedString::from(" ".repeat(column)),
6882 font_size,
6883 &[TextRun {
6884 len: column,
6885 font: style.text.font(),
6886 color: Hsla::default(),
6887 background_color: None,
6888 underline: None,
6889 strikethrough: None,
6890 }],
6891 );
6892
6893 layout.width
6894 }
6895
6896 fn max_line_number_width(&self, snapshot: &EditorSnapshot, window: &mut Window) -> Pixels {
6897 let digit_count = snapshot.widest_line_number().ilog10() + 1;
6898 self.column_pixels(digit_count as usize, window)
6899 }
6900
6901 fn shape_line_number(
6902 &self,
6903 text: SharedString,
6904 color: Hsla,
6905 window: &mut Window,
6906 ) -> ShapedLine {
6907 let run = TextRun {
6908 len: text.len(),
6909 font: self.style.text.font(),
6910 color,
6911 background_color: None,
6912 underline: None,
6913 strikethrough: None,
6914 };
6915 window.text_system().shape_line(
6916 text,
6917 self.style.text.font_size.to_pixels(window.rem_size()),
6918 &[run],
6919 )
6920 }
6921
6922 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
6923 let unstaged = status.has_secondary_hunk();
6924 let unstaged_hollow = ProjectSettings::get_global(cx)
6925 .git
6926 .hunk_style
6927 .map_or(false, |style| {
6928 matches!(style, GitHunkStyleSetting::UnstagedHollow)
6929 });
6930
6931 unstaged == unstaged_hollow
6932 }
6933}
6934
6935fn header_jump_data(
6936 snapshot: &EditorSnapshot,
6937 block_row_start: DisplayRow,
6938 height: u32,
6939 for_excerpt: &ExcerptInfo,
6940) -> JumpData {
6941 let range = &for_excerpt.range;
6942 let buffer = &for_excerpt.buffer;
6943 let jump_anchor = range.primary.start;
6944
6945 let excerpt_start = range.context.start;
6946 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
6947 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
6948 0
6949 } else {
6950 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
6951 jump_position.row.saturating_sub(excerpt_start_point.row)
6952 };
6953
6954 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
6955 .saturating_sub(
6956 snapshot
6957 .scroll_anchor
6958 .scroll_position(&snapshot.display_snapshot)
6959 .y as u32,
6960 );
6961
6962 JumpData::MultiBufferPoint {
6963 excerpt_id: for_excerpt.id,
6964 anchor: jump_anchor,
6965 position: jump_position,
6966 line_offset_from_top,
6967 }
6968}
6969
6970pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
6971
6972impl AcceptEditPredictionBinding {
6973 pub fn keystroke(&self) -> Option<&Keystroke> {
6974 if let Some(binding) = self.0.as_ref() {
6975 match &binding.keystrokes() {
6976 [keystroke, ..] => Some(keystroke),
6977 _ => None,
6978 }
6979 } else {
6980 None
6981 }
6982 }
6983}
6984
6985fn prepaint_gutter_button(
6986 button: IconButton,
6987 row: DisplayRow,
6988 line_height: Pixels,
6989 gutter_dimensions: &GutterDimensions,
6990 scroll_pixel_position: gpui::Point<Pixels>,
6991 gutter_hitbox: &Hitbox,
6992 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
6993 window: &mut Window,
6994 cx: &mut App,
6995) -> AnyElement {
6996 let mut button = button.into_any_element();
6997
6998 let available_space = size(
6999 AvailableSpace::MinContent,
7000 AvailableSpace::Definite(line_height),
7001 );
7002 let indicator_size = button.layout_as_root(available_space, window, cx);
7003
7004 let blame_width = gutter_dimensions.git_blame_entries_width;
7005 let gutter_width = display_hunks
7006 .binary_search_by(|(hunk, _)| match hunk {
7007 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
7008 DisplayDiffHunk::Unfolded {
7009 display_row_range, ..
7010 } => {
7011 if display_row_range.end <= row {
7012 Ordering::Less
7013 } else if display_row_range.start > row {
7014 Ordering::Greater
7015 } else {
7016 Ordering::Equal
7017 }
7018 }
7019 })
7020 .ok()
7021 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
7022 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
7023
7024 let mut x = left_offset;
7025 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
7026 - indicator_size.width
7027 - left_offset;
7028 x += available_width / 2.;
7029
7030 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
7031 y += (line_height - indicator_size.height) / 2.;
7032
7033 button.prepaint_as_root(
7034 gutter_hitbox.origin + point(x, y),
7035 available_space,
7036 window,
7037 cx,
7038 );
7039 button
7040}
7041
7042fn render_inline_blame_entry(
7043 blame_entry: BlameEntry,
7044 style: &EditorStyle,
7045 cx: &mut App,
7046) -> Option<AnyElement> {
7047 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
7048 renderer.render_inline_blame_entry(&style.text, blame_entry, cx)
7049}
7050
7051fn render_blame_entry_popover(
7052 blame_entry: BlameEntry,
7053 scroll_handle: ScrollHandle,
7054 commit_message: Option<ParsedCommitMessage>,
7055 markdown: Entity<Markdown>,
7056 workspace: WeakEntity<Workspace>,
7057 blame: &Entity<GitBlame>,
7058 window: &mut Window,
7059 cx: &mut App,
7060) -> Option<AnyElement> {
7061 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
7062 let blame = blame.read(cx);
7063 let repository = blame.repository(cx)?.clone();
7064 renderer.render_blame_entry_popover(
7065 blame_entry,
7066 scroll_handle,
7067 commit_message,
7068 markdown,
7069 repository,
7070 workspace,
7071 window,
7072 cx,
7073 )
7074}
7075
7076fn render_blame_entry(
7077 ix: usize,
7078 blame: &Entity<GitBlame>,
7079 blame_entry: BlameEntry,
7080 style: &EditorStyle,
7081 last_used_color: &mut Option<(PlayerColor, Oid)>,
7082 editor: Entity<Editor>,
7083 workspace: Entity<Workspace>,
7084 renderer: Arc<dyn BlameRenderer>,
7085 cx: &mut App,
7086) -> Option<AnyElement> {
7087 let mut sha_color = cx
7088 .theme()
7089 .players()
7090 .color_for_participant(blame_entry.sha.into());
7091
7092 // If the last color we used is the same as the one we get for this line, but
7093 // the commit SHAs are different, then we try again to get a different color.
7094 match *last_used_color {
7095 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
7096 let index: u32 = blame_entry.sha.into();
7097 sha_color = cx.theme().players().color_for_participant(index + 1);
7098 }
7099 _ => {}
7100 };
7101 last_used_color.replace((sha_color, blame_entry.sha));
7102
7103 let blame = blame.read(cx);
7104 let details = blame.details_for_entry(&blame_entry);
7105 let repository = blame.repository(cx)?;
7106 renderer.render_blame_entry(
7107 &style.text,
7108 blame_entry,
7109 details,
7110 repository,
7111 workspace.downgrade(),
7112 editor,
7113 ix,
7114 sha_color.cursor,
7115 cx,
7116 )
7117}
7118
7119#[derive(Debug)]
7120pub(crate) struct LineWithInvisibles {
7121 fragments: SmallVec<[LineFragment; 1]>,
7122 invisibles: Vec<Invisible>,
7123 len: usize,
7124 pub(crate) width: Pixels,
7125 font_size: Pixels,
7126}
7127
7128enum LineFragment {
7129 Text(ShapedLine),
7130 Element {
7131 id: ChunkRendererId,
7132 element: Option<AnyElement>,
7133 size: Size<Pixels>,
7134 len: usize,
7135 },
7136}
7137
7138impl fmt::Debug for LineFragment {
7139 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
7140 match self {
7141 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
7142 LineFragment::Element { size, len, .. } => f
7143 .debug_struct("Element")
7144 .field("size", size)
7145 .field("len", len)
7146 .finish(),
7147 }
7148 }
7149}
7150
7151impl LineWithInvisibles {
7152 fn from_chunks<'a>(
7153 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
7154 editor_style: &EditorStyle,
7155 max_line_len: usize,
7156 max_line_count: usize,
7157 editor_mode: &EditorMode,
7158 text_width: Pixels,
7159 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
7160 window: &mut Window,
7161 cx: &mut App,
7162 ) -> Vec<Self> {
7163 let text_style = &editor_style.text;
7164 let mut layouts = Vec::with_capacity(max_line_count);
7165 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
7166 let mut line = String::new();
7167 let mut invisibles = Vec::new();
7168 let mut width = Pixels::ZERO;
7169 let mut len = 0;
7170 let mut styles = Vec::new();
7171 let mut non_whitespace_added = false;
7172 let mut row = 0;
7173 let mut line_exceeded_max_len = false;
7174 let font_size = text_style.font_size.to_pixels(window.rem_size());
7175
7176 let ellipsis = SharedString::from("⋯");
7177
7178 for highlighted_chunk in chunks.chain([HighlightedChunk {
7179 text: "\n",
7180 style: None,
7181 is_tab: false,
7182 is_inlay: false,
7183 replacement: None,
7184 }]) {
7185 if let Some(replacement) = highlighted_chunk.replacement {
7186 if !line.is_empty() {
7187 let shaped_line =
7188 window
7189 .text_system()
7190 .shape_line(line.clone().into(), font_size, &styles);
7191 width += shaped_line.width;
7192 len += shaped_line.len;
7193 fragments.push(LineFragment::Text(shaped_line));
7194 line.clear();
7195 styles.clear();
7196 }
7197
7198 match replacement {
7199 ChunkReplacement::Renderer(renderer) => {
7200 let available_width = if renderer.constrain_width {
7201 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
7202 ellipsis.clone()
7203 } else {
7204 SharedString::from(Arc::from(highlighted_chunk.text))
7205 };
7206 let shaped_line = window.text_system().shape_line(
7207 chunk,
7208 font_size,
7209 &[text_style.to_run(highlighted_chunk.text.len())],
7210 );
7211 AvailableSpace::Definite(shaped_line.width)
7212 } else {
7213 AvailableSpace::MinContent
7214 };
7215
7216 let mut element = (renderer.render)(&mut ChunkRendererContext {
7217 context: cx,
7218 window,
7219 max_width: text_width,
7220 });
7221 let line_height = text_style.line_height_in_pixels(window.rem_size());
7222 let size = element.layout_as_root(
7223 size(available_width, AvailableSpace::Definite(line_height)),
7224 window,
7225 cx,
7226 );
7227
7228 width += size.width;
7229 len += highlighted_chunk.text.len();
7230 fragments.push(LineFragment::Element {
7231 id: renderer.id,
7232 element: Some(element),
7233 size,
7234 len: highlighted_chunk.text.len(),
7235 });
7236 }
7237 ChunkReplacement::Str(x) => {
7238 let text_style = if let Some(style) = highlighted_chunk.style {
7239 Cow::Owned(text_style.clone().highlight(style))
7240 } else {
7241 Cow::Borrowed(text_style)
7242 };
7243
7244 let run = TextRun {
7245 len: x.len(),
7246 font: text_style.font(),
7247 color: text_style.color,
7248 background_color: text_style.background_color,
7249 underline: text_style.underline,
7250 strikethrough: text_style.strikethrough,
7251 };
7252 let line_layout = window
7253 .text_system()
7254 .shape_line(x, font_size, &[run])
7255 .with_len(highlighted_chunk.text.len());
7256
7257 width += line_layout.width;
7258 len += highlighted_chunk.text.len();
7259 fragments.push(LineFragment::Text(line_layout))
7260 }
7261 }
7262 } else {
7263 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
7264 if ix > 0 {
7265 let shaped_line = window.text_system().shape_line(
7266 line.clone().into(),
7267 font_size,
7268 &styles,
7269 );
7270 width += shaped_line.width;
7271 len += shaped_line.len;
7272 fragments.push(LineFragment::Text(shaped_line));
7273 layouts.push(Self {
7274 width: mem::take(&mut width),
7275 len: mem::take(&mut len),
7276 fragments: mem::take(&mut fragments),
7277 invisibles: std::mem::take(&mut invisibles),
7278 font_size,
7279 });
7280
7281 line.clear();
7282 styles.clear();
7283 row += 1;
7284 line_exceeded_max_len = false;
7285 non_whitespace_added = false;
7286 if row == max_line_count {
7287 return layouts;
7288 }
7289 }
7290
7291 if !line_chunk.is_empty() && !line_exceeded_max_len {
7292 let text_style = if let Some(style) = highlighted_chunk.style {
7293 Cow::Owned(text_style.clone().highlight(style))
7294 } else {
7295 Cow::Borrowed(text_style)
7296 };
7297
7298 if line.len() + line_chunk.len() > max_line_len {
7299 let mut chunk_len = max_line_len - line.len();
7300 while !line_chunk.is_char_boundary(chunk_len) {
7301 chunk_len -= 1;
7302 }
7303 line_chunk = &line_chunk[..chunk_len];
7304 line_exceeded_max_len = true;
7305 }
7306
7307 styles.push(TextRun {
7308 len: line_chunk.len(),
7309 font: text_style.font(),
7310 color: text_style.color,
7311 background_color: text_style.background_color,
7312 underline: text_style.underline,
7313 strikethrough: text_style.strikethrough,
7314 });
7315
7316 if editor_mode.is_full() && !highlighted_chunk.is_inlay {
7317 // Line wrap pads its contents with fake whitespaces,
7318 // avoid printing them
7319 let is_soft_wrapped = is_row_soft_wrapped(row);
7320 if highlighted_chunk.is_tab {
7321 if non_whitespace_added || !is_soft_wrapped {
7322 invisibles.push(Invisible::Tab {
7323 line_start_offset: line.len(),
7324 line_end_offset: line.len() + line_chunk.len(),
7325 });
7326 }
7327 } else {
7328 invisibles.extend(line_chunk.char_indices().filter_map(
7329 |(index, c)| {
7330 let is_whitespace = c.is_whitespace();
7331 non_whitespace_added |= !is_whitespace;
7332 if is_whitespace
7333 && (non_whitespace_added || !is_soft_wrapped)
7334 {
7335 Some(Invisible::Whitespace {
7336 line_offset: line.len() + index,
7337 })
7338 } else {
7339 None
7340 }
7341 },
7342 ))
7343 }
7344 }
7345
7346 line.push_str(line_chunk);
7347 }
7348 }
7349 }
7350 }
7351
7352 layouts
7353 }
7354
7355 fn prepaint(
7356 &mut self,
7357 line_height: Pixels,
7358 scroll_pixel_position: gpui::Point<Pixels>,
7359 row: DisplayRow,
7360 content_origin: gpui::Point<Pixels>,
7361 line_elements: &mut SmallVec<[AnyElement; 1]>,
7362 window: &mut Window,
7363 cx: &mut App,
7364 ) {
7365 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
7366 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
7367 for fragment in &mut self.fragments {
7368 match fragment {
7369 LineFragment::Text(line) => {
7370 fragment_origin.x += line.width;
7371 }
7372 LineFragment::Element { element, size, .. } => {
7373 let mut element = element
7374 .take()
7375 .expect("you can't prepaint LineWithInvisibles twice");
7376
7377 // Center the element vertically within the line.
7378 let mut element_origin = fragment_origin;
7379 element_origin.y += (line_height - size.height) / 2.;
7380 element.prepaint_at(element_origin, window, cx);
7381 line_elements.push(element);
7382
7383 fragment_origin.x += size.width;
7384 }
7385 }
7386 }
7387 }
7388
7389 fn draw(
7390 &self,
7391 layout: &EditorLayout,
7392 row: DisplayRow,
7393 content_origin: gpui::Point<Pixels>,
7394 whitespace_setting: ShowWhitespaceSetting,
7395 selection_ranges: &[Range<DisplayPoint>],
7396 window: &mut Window,
7397 cx: &mut App,
7398 ) {
7399 let line_height = layout.position_map.line_height;
7400 let line_y = line_height
7401 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
7402
7403 let mut fragment_origin =
7404 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
7405
7406 for fragment in &self.fragments {
7407 match fragment {
7408 LineFragment::Text(line) => {
7409 line.paint(fragment_origin, line_height, window, cx)
7410 .log_err();
7411 fragment_origin.x += line.width;
7412 }
7413 LineFragment::Element { size, .. } => {
7414 fragment_origin.x += size.width;
7415 }
7416 }
7417 }
7418
7419 self.draw_invisibles(
7420 selection_ranges,
7421 layout,
7422 content_origin,
7423 line_y,
7424 row,
7425 line_height,
7426 whitespace_setting,
7427 window,
7428 cx,
7429 );
7430 }
7431
7432 fn draw_background(
7433 &self,
7434 layout: &EditorLayout,
7435 row: DisplayRow,
7436 content_origin: gpui::Point<Pixels>,
7437 window: &mut Window,
7438 cx: &mut App,
7439 ) {
7440 let line_height = layout.position_map.line_height;
7441 let line_y = line_height
7442 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
7443
7444 let mut fragment_origin =
7445 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
7446
7447 for fragment in &self.fragments {
7448 match fragment {
7449 LineFragment::Text(line) => {
7450 line.paint_background(fragment_origin, line_height, window, cx)
7451 .log_err();
7452 fragment_origin.x += line.width;
7453 }
7454 LineFragment::Element { size, .. } => {
7455 fragment_origin.x += size.width;
7456 }
7457 }
7458 }
7459 }
7460
7461 fn draw_invisibles(
7462 &self,
7463 selection_ranges: &[Range<DisplayPoint>],
7464 layout: &EditorLayout,
7465 content_origin: gpui::Point<Pixels>,
7466 line_y: Pixels,
7467 row: DisplayRow,
7468 line_height: Pixels,
7469 whitespace_setting: ShowWhitespaceSetting,
7470 window: &mut Window,
7471 cx: &mut App,
7472 ) {
7473 let extract_whitespace_info = |invisible: &Invisible| {
7474 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
7475 Invisible::Tab {
7476 line_start_offset,
7477 line_end_offset,
7478 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
7479 Invisible::Whitespace { line_offset } => {
7480 (*line_offset, line_offset + 1, &layout.space_invisible)
7481 }
7482 };
7483
7484 let x_offset = self.x_for_index(token_offset);
7485 let invisible_offset =
7486 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
7487 let origin = content_origin
7488 + gpui::point(
7489 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
7490 line_y,
7491 );
7492
7493 (
7494 [token_offset, token_end_offset],
7495 Box::new(move |window: &mut Window, cx: &mut App| {
7496 invisible_symbol
7497 .paint(origin, line_height, window, cx)
7498 .log_err();
7499 }),
7500 )
7501 };
7502
7503 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
7504 match whitespace_setting {
7505 ShowWhitespaceSetting::None => (),
7506 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
7507 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
7508 let invisible_point = DisplayPoint::new(row, start as u32);
7509 if !selection_ranges
7510 .iter()
7511 .any(|region| region.start <= invisible_point && invisible_point < region.end)
7512 {
7513 return;
7514 }
7515
7516 paint(window, cx);
7517 }),
7518
7519 ShowWhitespaceSetting::Trailing => {
7520 let mut previous_start = self.len;
7521 for ([start, end], paint) in invisible_iter.rev() {
7522 if previous_start != end {
7523 break;
7524 }
7525 previous_start = start;
7526 paint(window, cx);
7527 }
7528 }
7529
7530 // For a whitespace to be on a boundary, any of the following conditions need to be met:
7531 // - It is a tab
7532 // - It is adjacent to an edge (start or end)
7533 // - It is adjacent to a whitespace (left or right)
7534 ShowWhitespaceSetting::Boundary => {
7535 // 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
7536 // the above cases.
7537 // Note: We zip in the original `invisibles` to check for tab equality
7538 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
7539 for (([start, end], paint), invisible) in
7540 invisible_iter.zip_eq(self.invisibles.iter())
7541 {
7542 let should_render = match (&last_seen, invisible) {
7543 (_, Invisible::Tab { .. }) => true,
7544 (Some((_, last_end, _)), _) => *last_end == start,
7545 _ => false,
7546 };
7547
7548 if should_render || start == 0 || end == self.len {
7549 paint(window, cx);
7550
7551 // Since we are scanning from the left, we will skip over the first available whitespace that is part
7552 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
7553 if let Some((should_render_last, last_end, paint_last)) = last_seen {
7554 // Note that we need to make sure that the last one is actually adjacent
7555 if !should_render_last && last_end == start {
7556 paint_last(window, cx);
7557 }
7558 }
7559 }
7560
7561 // Manually render anything within a selection
7562 let invisible_point = DisplayPoint::new(row, start as u32);
7563 if selection_ranges.iter().any(|region| {
7564 region.start <= invisible_point && invisible_point < region.end
7565 }) {
7566 paint(window, cx);
7567 }
7568
7569 last_seen = Some((should_render, end, paint));
7570 }
7571 }
7572 }
7573 }
7574
7575 pub fn x_for_index(&self, index: usize) -> Pixels {
7576 let mut fragment_start_x = Pixels::ZERO;
7577 let mut fragment_start_index = 0;
7578
7579 for fragment in &self.fragments {
7580 match fragment {
7581 LineFragment::Text(shaped_line) => {
7582 let fragment_end_index = fragment_start_index + shaped_line.len;
7583 if index < fragment_end_index {
7584 return fragment_start_x
7585 + shaped_line.x_for_index(index - fragment_start_index);
7586 }
7587 fragment_start_x += shaped_line.width;
7588 fragment_start_index = fragment_end_index;
7589 }
7590 LineFragment::Element { len, size, .. } => {
7591 let fragment_end_index = fragment_start_index + len;
7592 if index < fragment_end_index {
7593 return fragment_start_x;
7594 }
7595 fragment_start_x += size.width;
7596 fragment_start_index = fragment_end_index;
7597 }
7598 }
7599 }
7600
7601 fragment_start_x
7602 }
7603
7604 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
7605 let mut fragment_start_x = Pixels::ZERO;
7606 let mut fragment_start_index = 0;
7607
7608 for fragment in &self.fragments {
7609 match fragment {
7610 LineFragment::Text(shaped_line) => {
7611 let fragment_end_x = fragment_start_x + shaped_line.width;
7612 if x < fragment_end_x {
7613 return Some(
7614 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
7615 );
7616 }
7617 fragment_start_x = fragment_end_x;
7618 fragment_start_index += shaped_line.len;
7619 }
7620 LineFragment::Element { len, size, .. } => {
7621 let fragment_end_x = fragment_start_x + size.width;
7622 if x < fragment_end_x {
7623 return Some(fragment_start_index);
7624 }
7625 fragment_start_index += len;
7626 fragment_start_x = fragment_end_x;
7627 }
7628 }
7629 }
7630
7631 None
7632 }
7633
7634 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
7635 let mut fragment_start_index = 0;
7636
7637 for fragment in &self.fragments {
7638 match fragment {
7639 LineFragment::Text(shaped_line) => {
7640 let fragment_end_index = fragment_start_index + shaped_line.len;
7641 if index < fragment_end_index {
7642 return shaped_line.font_id_for_index(index - fragment_start_index);
7643 }
7644 fragment_start_index = fragment_end_index;
7645 }
7646 LineFragment::Element { len, .. } => {
7647 let fragment_end_index = fragment_start_index + len;
7648 if index < fragment_end_index {
7649 return None;
7650 }
7651 fragment_start_index = fragment_end_index;
7652 }
7653 }
7654 }
7655
7656 None
7657 }
7658}
7659
7660#[derive(Debug, Clone, Copy, PartialEq, Eq)]
7661enum Invisible {
7662 /// A tab character
7663 ///
7664 /// A tab character is internally represented by spaces (configured by the user's tab width)
7665 /// aligned to the nearest column, so it's necessary to store the start and end offset for
7666 /// adjacency checks.
7667 Tab {
7668 line_start_offset: usize,
7669 line_end_offset: usize,
7670 },
7671 Whitespace {
7672 line_offset: usize,
7673 },
7674}
7675
7676impl EditorElement {
7677 /// Returns the rem size to use when rendering the [`EditorElement`].
7678 ///
7679 /// This allows UI elements to scale based on the `buffer_font_size`.
7680 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
7681 match self.editor.read(cx).mode {
7682 EditorMode::Full {
7683 scale_ui_elements_with_buffer_font_size: true,
7684 ..
7685 }
7686 | EditorMode::Minimap { .. } => {
7687 let buffer_font_size = self.style.text.font_size;
7688 match buffer_font_size {
7689 AbsoluteLength::Pixels(pixels) => {
7690 let rem_size_scale = {
7691 // Our default UI font size is 14px on a 16px base scale.
7692 // This means the default UI font size is 0.875rems.
7693 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
7694
7695 // We then determine the delta between a single rem and the default font
7696 // size scale.
7697 let default_font_size_delta = 1. - default_font_size_scale;
7698
7699 // Finally, we add this delta to 1rem to get the scale factor that
7700 // should be used to scale up the UI.
7701 1. + default_font_size_delta
7702 };
7703
7704 Some(pixels * rem_size_scale)
7705 }
7706 AbsoluteLength::Rems(rems) => {
7707 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
7708 }
7709 }
7710 }
7711 // We currently use single-line and auto-height editors in UI contexts,
7712 // so we don't want to scale everything with the buffer font size, as it
7713 // ends up looking off.
7714 _ => None,
7715 }
7716 }
7717
7718 fn editor_with_selections(&self, cx: &App) -> Option<Entity<Editor>> {
7719 if let EditorMode::Minimap { parent } = self.editor.read(cx).mode() {
7720 parent.upgrade()
7721 } else {
7722 Some(self.editor.clone())
7723 }
7724 }
7725}
7726
7727impl Element for EditorElement {
7728 type RequestLayoutState = ();
7729 type PrepaintState = EditorLayout;
7730
7731 fn id(&self) -> Option<ElementId> {
7732 None
7733 }
7734
7735 fn source_location(&self) -> Option<&'static core::panic::Location<'static>> {
7736 None
7737 }
7738
7739 fn request_layout(
7740 &mut self,
7741 _: Option<&GlobalElementId>,
7742 _inspector_id: Option<&gpui::InspectorElementId>,
7743 window: &mut Window,
7744 cx: &mut App,
7745 ) -> (gpui::LayoutId, ()) {
7746 let rem_size = self.rem_size(cx);
7747 window.with_rem_size(rem_size, |window| {
7748 self.editor.update(cx, |editor, cx| {
7749 editor.set_style(self.style.clone(), window, cx);
7750
7751 let layout_id = match editor.mode {
7752 EditorMode::SingleLine { auto_width } => {
7753 let rem_size = window.rem_size();
7754
7755 let height = self.style.text.line_height_in_pixels(rem_size);
7756 if auto_width {
7757 let editor_handle = cx.entity().clone();
7758 let style = self.style.clone();
7759 window.request_measured_layout(
7760 Style::default(),
7761 move |_, _, window, cx| {
7762 let editor_snapshot = editor_handle
7763 .update(cx, |editor, cx| editor.snapshot(window, cx));
7764 let line = Self::layout_lines(
7765 DisplayRow(0)..DisplayRow(1),
7766 &editor_snapshot,
7767 &style,
7768 px(f32::MAX),
7769 |_| false, // Single lines never soft wrap
7770 window,
7771 cx,
7772 )
7773 .pop()
7774 .unwrap();
7775
7776 let font_id =
7777 window.text_system().resolve_font(&style.text.font());
7778 let font_size =
7779 style.text.font_size.to_pixels(window.rem_size());
7780 let em_width =
7781 window.text_system().em_width(font_id, font_size).unwrap();
7782
7783 size(line.width + em_width, height)
7784 },
7785 )
7786 } else {
7787 let mut style = Style::default();
7788 style.size.height = height.into();
7789 style.size.width = relative(1.).into();
7790 window.request_layout(style, None, cx)
7791 }
7792 }
7793 EditorMode::AutoHeight {
7794 min_lines,
7795 max_lines,
7796 } => {
7797 let editor_handle = cx.entity().clone();
7798 let max_line_number_width =
7799 self.max_line_number_width(&editor.snapshot(window, cx), window);
7800 window.request_measured_layout(
7801 Style::default(),
7802 move |known_dimensions, available_space, window, cx| {
7803 editor_handle
7804 .update(cx, |editor, cx| {
7805 compute_auto_height_layout(
7806 editor,
7807 min_lines,
7808 max_lines,
7809 max_line_number_width,
7810 known_dimensions,
7811 available_space.width,
7812 window,
7813 cx,
7814 )
7815 })
7816 .unwrap_or_default()
7817 },
7818 )
7819 }
7820 EditorMode::Minimap { .. } => {
7821 let mut style = Style::default();
7822 style.size.width = relative(1.).into();
7823 style.size.height = relative(1.).into();
7824 window.request_layout(style, None, cx)
7825 }
7826 EditorMode::Full {
7827 sized_by_content, ..
7828 } => {
7829 let mut style = Style::default();
7830 style.size.width = relative(1.).into();
7831 if sized_by_content {
7832 let snapshot = editor.snapshot(window, cx);
7833 let line_height =
7834 self.style.text.line_height_in_pixels(window.rem_size());
7835 let scroll_height =
7836 (snapshot.max_point().row().next_row().0 as f32) * line_height;
7837 style.size.height = scroll_height.into();
7838 } else {
7839 style.size.height = relative(1.).into();
7840 }
7841 window.request_layout(style, None, cx)
7842 }
7843 };
7844
7845 (layout_id, ())
7846 })
7847 })
7848 }
7849
7850 fn prepaint(
7851 &mut self,
7852 _: Option<&GlobalElementId>,
7853 _inspector_id: Option<&gpui::InspectorElementId>,
7854 bounds: Bounds<Pixels>,
7855 _: &mut Self::RequestLayoutState,
7856 window: &mut Window,
7857 cx: &mut App,
7858 ) -> Self::PrepaintState {
7859 let text_style = TextStyleRefinement {
7860 font_size: Some(self.style.text.font_size),
7861 line_height: Some(self.style.text.line_height),
7862 ..Default::default()
7863 };
7864 let focus_handle = self.editor.focus_handle(cx);
7865 window.set_view_id(self.editor.entity_id());
7866 window.set_focus_handle(&focus_handle, cx);
7867
7868 let rem_size = self.rem_size(cx);
7869 window.with_rem_size(rem_size, |window| {
7870 window.with_text_style(Some(text_style), |window| {
7871 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7872 let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| {
7873 (editor.snapshot(window, cx), editor.read_only(cx))
7874 });
7875 let style = self.style.clone();
7876
7877 let rem_size = window.rem_size();
7878 let font_id = window.text_system().resolve_font(&style.text.font());
7879 let font_size = style.text.font_size.to_pixels(rem_size);
7880 let line_height = style.text.line_height_in_pixels(rem_size);
7881 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
7882 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
7883 let glyph_grid_cell = size(em_advance, line_height);
7884
7885 let gutter_dimensions = snapshot
7886 .gutter_dimensions(
7887 font_id,
7888 font_size,
7889 self.max_line_number_width(&snapshot, window),
7890 cx,
7891 )
7892 .or_else(|| {
7893 self.editor.read(cx).offset_content.then(|| {
7894 GutterDimensions::default_with_margin(font_id, font_size, cx)
7895 })
7896 })
7897 .unwrap_or_default();
7898 let text_width = bounds.size.width - gutter_dimensions.width;
7899
7900 let settings = EditorSettings::get_global(cx);
7901 let scrollbars_shown = settings.scrollbar.show != ShowScrollbar::Never;
7902 let vertical_scrollbar_width = (scrollbars_shown
7903 && settings.scrollbar.axes.vertical
7904 && self.editor.read(cx).show_scrollbars.vertical)
7905 .then_some(style.scrollbar_width)
7906 .unwrap_or_default();
7907 let minimap_width = self
7908 .get_minimap_width(
7909 &settings.minimap,
7910 scrollbars_shown,
7911 text_width,
7912 em_width,
7913 font_size,
7914 rem_size,
7915 cx,
7916 )
7917 .unwrap_or_default();
7918
7919 let right_margin = minimap_width + vertical_scrollbar_width;
7920
7921 let editor_width =
7922 text_width - gutter_dimensions.margin - 2 * em_width - right_margin;
7923 let editor_margins = EditorMargins {
7924 gutter: gutter_dimensions,
7925 right: right_margin,
7926 };
7927
7928 // Offset the content_bounds from the text_bounds by the gutter margin (which
7929 // is roughly half a character wide) to make hit testing work more like how we want.
7930 let content_offset = point(editor_margins.gutter.margin, Pixels::ZERO);
7931
7932 let editor_content_width = editor_width - content_offset.x;
7933
7934 snapshot = self.editor.update(cx, |editor, cx| {
7935 editor.last_bounds = Some(bounds);
7936 editor.gutter_dimensions = gutter_dimensions;
7937 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
7938
7939 if matches!(
7940 editor.mode,
7941 EditorMode::AutoHeight { .. } | EditorMode::Minimap { .. }
7942 ) {
7943 snapshot
7944 } else {
7945 let wrap_width_for = |column: u32| (column as f32 * em_advance).ceil();
7946 let wrap_width = match editor.soft_wrap_mode(cx) {
7947 SoftWrap::GitDiff => None,
7948 SoftWrap::None => Some(wrap_width_for(MAX_LINE_LEN as u32 / 2)),
7949 SoftWrap::EditorWidth => Some(editor_content_width),
7950 SoftWrap::Column(column) => Some(wrap_width_for(column)),
7951 SoftWrap::Bounded(column) => {
7952 Some(editor_content_width.min(wrap_width_for(column)))
7953 }
7954 };
7955
7956 if editor.set_wrap_width(wrap_width, cx) {
7957 editor.snapshot(window, cx)
7958 } else {
7959 snapshot
7960 }
7961 }
7962 });
7963
7964 let hitbox = window.insert_hitbox(bounds, HitboxBehavior::Normal);
7965 let gutter_hitbox = window.insert_hitbox(
7966 gutter_bounds(bounds, gutter_dimensions),
7967 HitboxBehavior::Normal,
7968 );
7969 let text_hitbox = window.insert_hitbox(
7970 Bounds {
7971 origin: gutter_hitbox.top_right(),
7972 size: size(text_width, bounds.size.height),
7973 },
7974 HitboxBehavior::Normal,
7975 );
7976
7977 let content_origin = text_hitbox.origin + content_offset;
7978
7979 let editor_text_bounds =
7980 Bounds::from_corners(content_origin, bounds.bottom_right());
7981
7982 let height_in_lines = editor_text_bounds.size.height / line_height;
7983
7984 let max_row = snapshot.max_point().row().as_f32();
7985
7986 // The max scroll position for the top of the window
7987 let max_scroll_top = if matches!(
7988 snapshot.mode,
7989 EditorMode::SingleLine { .. }
7990 | EditorMode::AutoHeight { .. }
7991 | EditorMode::Full {
7992 sized_by_content: true,
7993 ..
7994 }
7995 ) {
7996 (max_row - height_in_lines + 1.).max(0.)
7997 } else {
7998 let settings = EditorSettings::get_global(cx);
7999 match settings.scroll_beyond_last_line {
8000 ScrollBeyondLastLine::OnePage => max_row,
8001 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
8002 ScrollBeyondLastLine::VerticalScrollMargin => {
8003 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
8004 .max(0.)
8005 }
8006 }
8007 };
8008
8009 // TODO: Autoscrolling for both axes
8010 let mut autoscroll_request = None;
8011 let mut autoscroll_containing_element = false;
8012 let mut autoscroll_horizontally = false;
8013 self.editor.update(cx, |editor, cx| {
8014 autoscroll_request = editor.autoscroll_request();
8015 autoscroll_containing_element =
8016 autoscroll_request.is_some() || editor.has_pending_selection();
8017 // TODO: Is this horizontal or vertical?!
8018 autoscroll_horizontally = editor.autoscroll_vertically(
8019 bounds,
8020 line_height,
8021 max_scroll_top,
8022 window,
8023 cx,
8024 );
8025 snapshot = editor.snapshot(window, cx);
8026 });
8027
8028 let mut scroll_position = snapshot.scroll_position();
8029 // The scroll position is a fractional point, the whole number of which represents
8030 // the top of the window in terms of display rows.
8031 let start_row = DisplayRow(scroll_position.y as u32);
8032 let max_row = snapshot.max_point().row();
8033 let end_row = cmp::min(
8034 (scroll_position.y + height_in_lines).ceil() as u32,
8035 max_row.next_row().0,
8036 );
8037 let end_row = DisplayRow(end_row);
8038
8039 let row_infos = snapshot
8040 .row_infos(start_row)
8041 .take((start_row..end_row).len())
8042 .collect::<Vec<RowInfo>>();
8043 let is_row_soft_wrapped = |row: usize| {
8044 row_infos
8045 .get(row)
8046 .map_or(true, |info| info.buffer_row.is_none())
8047 };
8048
8049 let start_anchor = if start_row == Default::default() {
8050 Anchor::min()
8051 } else {
8052 snapshot.buffer_snapshot.anchor_before(
8053 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
8054 )
8055 };
8056 let end_anchor = if end_row > max_row {
8057 Anchor::max()
8058 } else {
8059 snapshot.buffer_snapshot.anchor_before(
8060 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
8061 )
8062 };
8063
8064 let mut highlighted_rows = self
8065 .editor
8066 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
8067
8068 let is_light = cx.theme().appearance().is_light();
8069
8070 for (ix, row_info) in row_infos.iter().enumerate() {
8071 let Some(diff_status) = row_info.diff_status else {
8072 continue;
8073 };
8074
8075 let background_color = match diff_status.kind {
8076 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
8077 DiffHunkStatusKind::Deleted => {
8078 cx.theme().colors().version_control_deleted
8079 }
8080 DiffHunkStatusKind::Modified => {
8081 debug_panic!("modified diff status for row info");
8082 continue;
8083 }
8084 };
8085
8086 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
8087
8088 let hollow_highlight = LineHighlight {
8089 background: (background_color.opacity(if is_light {
8090 0.08
8091 } else {
8092 0.06
8093 }))
8094 .into(),
8095 border: Some(if is_light {
8096 background_color.opacity(0.48)
8097 } else {
8098 background_color.opacity(0.36)
8099 }),
8100 include_gutter: true,
8101 type_id: None,
8102 };
8103
8104 let filled_highlight = LineHighlight {
8105 background: solid_background(background_color.opacity(hunk_opacity)),
8106 border: None,
8107 include_gutter: true,
8108 type_id: None,
8109 };
8110
8111 let background = if Self::diff_hunk_hollow(diff_status, cx) {
8112 hollow_highlight
8113 } else {
8114 filled_highlight
8115 };
8116
8117 highlighted_rows
8118 .entry(start_row + DisplayRow(ix as u32))
8119 .or_insert(background);
8120 }
8121
8122 let highlighted_ranges = self
8123 .editor_with_selections(cx)
8124 .map(|editor| {
8125 editor.read(cx).background_highlights_in_range(
8126 start_anchor..end_anchor,
8127 &snapshot.display_snapshot,
8128 cx.theme(),
8129 )
8130 })
8131 .unwrap_or_default();
8132 let highlighted_gutter_ranges =
8133 self.editor.read(cx).gutter_highlights_in_range(
8134 start_anchor..end_anchor,
8135 &snapshot.display_snapshot,
8136 cx,
8137 );
8138
8139 let document_colors = self
8140 .editor
8141 .read(cx)
8142 .colors
8143 .as_ref()
8144 .map(|colors| colors.editor_display_highlights(&snapshot));
8145 let redacted_ranges = self.editor.read(cx).redacted_ranges(
8146 start_anchor..end_anchor,
8147 &snapshot.display_snapshot,
8148 cx,
8149 );
8150
8151 let (local_selections, selected_buffer_ids): (
8152 Vec<Selection<Point>>,
8153 Vec<BufferId>,
8154 ) = self
8155 .editor_with_selections(cx)
8156 .map(|editor| {
8157 editor.update(cx, |editor, cx| {
8158 let all_selections = editor.selections.all::<Point>(cx);
8159 let selected_buffer_ids = if editor.is_singleton(cx) {
8160 Vec::new()
8161 } else {
8162 let mut selected_buffer_ids =
8163 Vec::with_capacity(all_selections.len());
8164
8165 for selection in all_selections {
8166 for buffer_id in snapshot
8167 .buffer_snapshot
8168 .buffer_ids_for_range(selection.range())
8169 {
8170 if selected_buffer_ids.last() != Some(&buffer_id) {
8171 selected_buffer_ids.push(buffer_id);
8172 }
8173 }
8174 }
8175
8176 selected_buffer_ids
8177 };
8178
8179 let mut selections = editor
8180 .selections
8181 .disjoint_in_range(start_anchor..end_anchor, cx);
8182 selections.extend(editor.selections.pending(cx));
8183
8184 (selections, selected_buffer_ids)
8185 })
8186 })
8187 .unwrap_or_default();
8188
8189 let (selections, mut active_rows, newest_selection_head) = self
8190 .layout_selections(
8191 start_anchor,
8192 end_anchor,
8193 &local_selections,
8194 &snapshot,
8195 start_row,
8196 end_row,
8197 window,
8198 cx,
8199 );
8200 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
8201 editor.active_breakpoints(start_row..end_row, window, cx)
8202 });
8203 for (display_row, (_, bp, state)) in &breakpoint_rows {
8204 if bp.is_enabled() && state.is_none_or(|s| s.verified) {
8205 active_rows.entry(*display_row).or_default().breakpoint = true;
8206 }
8207 }
8208
8209 let line_numbers = self.layout_line_numbers(
8210 Some(&gutter_hitbox),
8211 gutter_dimensions,
8212 line_height,
8213 scroll_position,
8214 start_row..end_row,
8215 &row_infos,
8216 &active_rows,
8217 newest_selection_head,
8218 &snapshot,
8219 window,
8220 cx,
8221 );
8222
8223 // We add the gutter breakpoint indicator to breakpoint_rows after painting
8224 // line numbers so we don't paint a line number debug accent color if a user
8225 // has their mouse over that line when a breakpoint isn't there
8226 self.editor.update(cx, |editor, _| {
8227 if let Some(phantom_breakpoint) = &mut editor
8228 .gutter_breakpoint_indicator
8229 .0
8230 .filter(|phantom_breakpoint| phantom_breakpoint.is_active)
8231 {
8232 // Is there a non-phantom breakpoint on this line?
8233 phantom_breakpoint.collides_with_existing_breakpoint = true;
8234 breakpoint_rows
8235 .entry(phantom_breakpoint.display_row)
8236 .or_insert_with(|| {
8237 let position = snapshot.display_point_to_anchor(
8238 DisplayPoint::new(phantom_breakpoint.display_row, 0),
8239 Bias::Right,
8240 );
8241 let breakpoint = Breakpoint::new_standard();
8242 phantom_breakpoint.collides_with_existing_breakpoint = false;
8243 (position, breakpoint, None)
8244 });
8245 }
8246 });
8247
8248 let mut expand_toggles =
8249 window.with_element_namespace("expand_toggles", |window| {
8250 self.layout_expand_toggles(
8251 &gutter_hitbox,
8252 gutter_dimensions,
8253 em_width,
8254 line_height,
8255 scroll_position,
8256 &row_infos,
8257 window,
8258 cx,
8259 )
8260 });
8261
8262 let mut crease_toggles =
8263 window.with_element_namespace("crease_toggles", |window| {
8264 self.layout_crease_toggles(
8265 start_row..end_row,
8266 &row_infos,
8267 &active_rows,
8268 &snapshot,
8269 window,
8270 cx,
8271 )
8272 });
8273 let crease_trailers =
8274 window.with_element_namespace("crease_trailers", |window| {
8275 self.layout_crease_trailers(
8276 row_infos.iter().copied(),
8277 &snapshot,
8278 window,
8279 cx,
8280 )
8281 });
8282
8283 let display_hunks = self.layout_gutter_diff_hunks(
8284 line_height,
8285 &gutter_hitbox,
8286 start_row..end_row,
8287 &snapshot,
8288 window,
8289 cx,
8290 );
8291
8292 let mut line_layouts = Self::layout_lines(
8293 start_row..end_row,
8294 &snapshot,
8295 &self.style,
8296 editor_width,
8297 is_row_soft_wrapped,
8298 window,
8299 cx,
8300 );
8301 let new_renrerer_widths = line_layouts
8302 .iter()
8303 .flat_map(|layout| &layout.fragments)
8304 .filter_map(|fragment| {
8305 if let LineFragment::Element { id, size, .. } = fragment {
8306 Some((*id, size.width))
8307 } else {
8308 None
8309 }
8310 });
8311 if self.editor.update(cx, |editor, cx| {
8312 editor.update_renderer_widths(new_renrerer_widths, cx)
8313 }) {
8314 // If the fold widths have changed, we need to prepaint
8315 // the element again to account for any changes in
8316 // wrapping.
8317 return self.prepaint(None, _inspector_id, bounds, &mut (), window, cx);
8318 }
8319
8320 let longest_line_blame_width = self
8321 .editor
8322 .update(cx, |editor, cx| {
8323 if !editor.show_git_blame_inline {
8324 return None;
8325 }
8326 let blame = editor.blame.as_ref()?;
8327 let blame_entry = blame
8328 .update(cx, |blame, cx| {
8329 let row_infos =
8330 snapshot.row_infos(snapshot.longest_row()).next()?;
8331 blame.blame_for_rows(&[row_infos], cx).next()
8332 })
8333 .flatten()?;
8334 let mut element = render_inline_blame_entry(blame_entry, &style, cx)?;
8335 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
8336 Some(
8337 element
8338 .layout_as_root(AvailableSpace::min_size(), window, cx)
8339 .width
8340 + inline_blame_padding,
8341 )
8342 })
8343 .unwrap_or(Pixels::ZERO);
8344
8345 let longest_line_width = layout_line(
8346 snapshot.longest_row(),
8347 &snapshot,
8348 &style,
8349 editor_width,
8350 is_row_soft_wrapped,
8351 window,
8352 cx,
8353 )
8354 .width;
8355
8356 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
8357 text_hitbox.bounds,
8358 glyph_grid_cell,
8359 size(longest_line_width, max_row.as_f32() * line_height),
8360 longest_line_blame_width,
8361 editor_width,
8362 EditorSettings::get_global(cx),
8363 );
8364
8365 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
8366
8367 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
8368 snapshot.sticky_header_excerpt(scroll_position.y)
8369 } else {
8370 None
8371 };
8372 let sticky_header_excerpt_id =
8373 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
8374
8375 let blocks = window.with_element_namespace("blocks", |window| {
8376 self.render_blocks(
8377 start_row..end_row,
8378 &snapshot,
8379 &hitbox,
8380 &text_hitbox,
8381 editor_width,
8382 &mut scroll_width,
8383 &editor_margins,
8384 em_width,
8385 gutter_dimensions.full_width(),
8386 line_height,
8387 &mut line_layouts,
8388 &local_selections,
8389 &selected_buffer_ids,
8390 is_row_soft_wrapped,
8391 sticky_header_excerpt_id,
8392 window,
8393 cx,
8394 )
8395 });
8396 let (mut blocks, row_block_types) = match blocks {
8397 Ok(blocks) => blocks,
8398 Err(resized_blocks) => {
8399 self.editor.update(cx, |editor, cx| {
8400 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
8401 });
8402 return self.prepaint(None, _inspector_id, bounds, &mut (), window, cx);
8403 }
8404 };
8405
8406 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
8407 window.with_element_namespace("blocks", |window| {
8408 self.layout_sticky_buffer_header(
8409 sticky_header_excerpt,
8410 scroll_position.y,
8411 line_height,
8412 right_margin,
8413 &snapshot,
8414 &hitbox,
8415 &selected_buffer_ids,
8416 &blocks,
8417 window,
8418 cx,
8419 )
8420 })
8421 });
8422
8423 let start_buffer_row =
8424 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
8425 let end_buffer_row =
8426 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
8427
8428 let scroll_max = point(
8429 ((scroll_width - editor_content_width) / em_advance).max(0.0),
8430 max_scroll_top,
8431 );
8432
8433 self.editor.update(cx, |editor, cx| {
8434 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
8435
8436 let autoscrolled = if autoscroll_horizontally {
8437 editor.autoscroll_horizontally(
8438 start_row,
8439 editor_content_width,
8440 scroll_width,
8441 em_advance,
8442 &line_layouts,
8443 cx,
8444 )
8445 } else {
8446 false
8447 };
8448
8449 if clamped || autoscrolled {
8450 snapshot = editor.snapshot(window, cx);
8451 scroll_position = snapshot.scroll_position();
8452 }
8453 });
8454
8455 let scroll_pixel_position = point(
8456 scroll_position.x * em_advance,
8457 scroll_position.y * line_height,
8458 );
8459 let indent_guides = self.layout_indent_guides(
8460 content_origin,
8461 text_hitbox.origin,
8462 start_buffer_row..end_buffer_row,
8463 scroll_pixel_position,
8464 line_height,
8465 &snapshot,
8466 window,
8467 cx,
8468 );
8469
8470 let crease_trailers =
8471 window.with_element_namespace("crease_trailers", |window| {
8472 self.prepaint_crease_trailers(
8473 crease_trailers,
8474 &line_layouts,
8475 line_height,
8476 content_origin,
8477 scroll_pixel_position,
8478 em_width,
8479 window,
8480 cx,
8481 )
8482 });
8483
8484 let (inline_completion_popover, inline_completion_popover_origin) = self
8485 .editor
8486 .update(cx, |editor, cx| {
8487 editor.render_edit_prediction_popover(
8488 &text_hitbox.bounds,
8489 content_origin,
8490 right_margin,
8491 &snapshot,
8492 start_row..end_row,
8493 scroll_position.y,
8494 scroll_position.y + height_in_lines,
8495 &line_layouts,
8496 line_height,
8497 scroll_pixel_position,
8498 newest_selection_head,
8499 editor_width,
8500 &style,
8501 window,
8502 cx,
8503 )
8504 })
8505 .unzip();
8506
8507 let mut inline_diagnostics = self.layout_inline_diagnostics(
8508 &line_layouts,
8509 &crease_trailers,
8510 &row_block_types,
8511 content_origin,
8512 scroll_pixel_position,
8513 inline_completion_popover_origin,
8514 start_row,
8515 end_row,
8516 line_height,
8517 em_width,
8518 &style,
8519 window,
8520 cx,
8521 );
8522
8523 let mut inline_blame_layout = None;
8524 let mut inline_code_actions = None;
8525 if let Some(newest_selection_head) = newest_selection_head {
8526 let display_row = newest_selection_head.row();
8527 if (start_row..end_row).contains(&display_row)
8528 && !row_block_types.contains_key(&display_row)
8529 {
8530 inline_code_actions = self.layout_inline_code_actions(
8531 newest_selection_head,
8532 content_origin,
8533 scroll_pixel_position,
8534 line_height,
8535 &snapshot,
8536 window,
8537 cx,
8538 );
8539
8540 let line_ix = display_row.minus(start_row) as usize;
8541 if let (Some(row_info), Some(line_layout), Some(crease_trailer)) = (
8542 row_infos.get(line_ix),
8543 line_layouts.get(line_ix),
8544 crease_trailers.get(line_ix),
8545 ) {
8546 let crease_trailer_layout = crease_trailer.as_ref();
8547 if let Some(layout) = self.layout_inline_blame(
8548 display_row,
8549 row_info,
8550 line_layout,
8551 crease_trailer_layout,
8552 em_width,
8553 content_origin,
8554 scroll_pixel_position,
8555 line_height,
8556 &text_hitbox,
8557 window,
8558 cx,
8559 ) {
8560 inline_blame_layout = Some(layout);
8561 // Blame overrides inline diagnostics
8562 inline_diagnostics.remove(&display_row);
8563 }
8564 } else {
8565 log::error!(
8566 "bug: line_ix {} is out of bounds - row_infos.len(): {}, line_layouts.len(): {}, crease_trailers.len(): {}",
8567 line_ix,
8568 row_infos.len(),
8569 line_layouts.len(),
8570 crease_trailers.len(),
8571 );
8572 }
8573 }
8574 }
8575
8576 let blamed_display_rows = self.layout_blame_entries(
8577 &row_infos,
8578 em_width,
8579 scroll_position,
8580 line_height,
8581 &gutter_hitbox,
8582 gutter_dimensions.git_blame_entries_width,
8583 window,
8584 cx,
8585 );
8586
8587 self.editor.update(cx, |editor, cx| {
8588 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
8589
8590 let autoscrolled = if autoscroll_horizontally {
8591 editor.autoscroll_horizontally(
8592 start_row,
8593 editor_content_width,
8594 scroll_width,
8595 em_advance,
8596 &line_layouts,
8597 cx,
8598 )
8599 } else {
8600 false
8601 };
8602
8603 if clamped || autoscrolled {
8604 snapshot = editor.snapshot(window, cx);
8605 scroll_position = snapshot.scroll_position();
8606 }
8607 });
8608
8609 let line_elements = self.prepaint_lines(
8610 start_row,
8611 &mut line_layouts,
8612 line_height,
8613 scroll_pixel_position,
8614 content_origin,
8615 window,
8616 cx,
8617 );
8618
8619 window.with_element_namespace("blocks", |window| {
8620 self.layout_blocks(
8621 &mut blocks,
8622 &hitbox,
8623 line_height,
8624 scroll_pixel_position,
8625 window,
8626 cx,
8627 );
8628 });
8629
8630 let cursors = self.collect_cursors(&snapshot, cx);
8631 let visible_row_range = start_row..end_row;
8632 let non_visible_cursors = cursors
8633 .iter()
8634 .any(|c| !visible_row_range.contains(&c.0.row()));
8635
8636 let visible_cursors = self.layout_visible_cursors(
8637 &snapshot,
8638 &selections,
8639 &row_block_types,
8640 start_row..end_row,
8641 &line_layouts,
8642 &text_hitbox,
8643 content_origin,
8644 scroll_position,
8645 scroll_pixel_position,
8646 line_height,
8647 em_width,
8648 em_advance,
8649 autoscroll_containing_element,
8650 window,
8651 cx,
8652 );
8653
8654 let scrollbars_layout = self.layout_scrollbars(
8655 &snapshot,
8656 &scrollbar_layout_information,
8657 content_offset,
8658 scroll_position,
8659 non_visible_cursors,
8660 right_margin,
8661 editor_width,
8662 window,
8663 cx,
8664 );
8665
8666 let gutter_settings = EditorSettings::get_global(cx).gutter;
8667
8668 let context_menu_layout =
8669 if let Some(newest_selection_head) = newest_selection_head {
8670 let newest_selection_point =
8671 newest_selection_head.to_point(&snapshot.display_snapshot);
8672 if (start_row..end_row).contains(&newest_selection_head.row()) {
8673 self.layout_cursor_popovers(
8674 line_height,
8675 &text_hitbox,
8676 content_origin,
8677 right_margin,
8678 start_row,
8679 scroll_pixel_position,
8680 &line_layouts,
8681 newest_selection_head,
8682 newest_selection_point,
8683 &style,
8684 window,
8685 cx,
8686 )
8687 } else {
8688 None
8689 }
8690 } else {
8691 None
8692 };
8693
8694 self.layout_gutter_menu(
8695 line_height,
8696 &text_hitbox,
8697 content_origin,
8698 right_margin,
8699 scroll_pixel_position,
8700 gutter_dimensions.width - gutter_dimensions.left_padding,
8701 window,
8702 cx,
8703 );
8704
8705 let test_indicators = if gutter_settings.runnables {
8706 self.layout_run_indicators(
8707 line_height,
8708 start_row..end_row,
8709 &row_infos,
8710 scroll_pixel_position,
8711 &gutter_dimensions,
8712 &gutter_hitbox,
8713 &display_hunks,
8714 &snapshot,
8715 &mut breakpoint_rows,
8716 window,
8717 cx,
8718 )
8719 } else {
8720 Vec::new()
8721 };
8722
8723 let show_breakpoints = snapshot
8724 .show_breakpoints
8725 .unwrap_or(gutter_settings.breakpoints);
8726 let breakpoints = if show_breakpoints {
8727 self.layout_breakpoints(
8728 line_height,
8729 start_row..end_row,
8730 scroll_pixel_position,
8731 &gutter_dimensions,
8732 &gutter_hitbox,
8733 &display_hunks,
8734 &snapshot,
8735 breakpoint_rows,
8736 &row_infos,
8737 window,
8738 cx,
8739 )
8740 } else {
8741 Vec::new()
8742 };
8743
8744 self.layout_signature_help(
8745 &hitbox,
8746 content_origin,
8747 scroll_pixel_position,
8748 newest_selection_head,
8749 start_row,
8750 &line_layouts,
8751 line_height,
8752 em_width,
8753 context_menu_layout,
8754 window,
8755 cx,
8756 );
8757
8758 if !cx.has_active_drag() {
8759 self.layout_hover_popovers(
8760 &snapshot,
8761 &hitbox,
8762 start_row..end_row,
8763 content_origin,
8764 scroll_pixel_position,
8765 &line_layouts,
8766 line_height,
8767 em_width,
8768 context_menu_layout,
8769 window,
8770 cx,
8771 );
8772 }
8773
8774 let mouse_context_menu = self.layout_mouse_context_menu(
8775 &snapshot,
8776 start_row..end_row,
8777 content_origin,
8778 window,
8779 cx,
8780 );
8781
8782 window.with_element_namespace("crease_toggles", |window| {
8783 self.prepaint_crease_toggles(
8784 &mut crease_toggles,
8785 line_height,
8786 &gutter_dimensions,
8787 gutter_settings,
8788 scroll_pixel_position,
8789 &gutter_hitbox,
8790 window,
8791 cx,
8792 )
8793 });
8794
8795 window.with_element_namespace("expand_toggles", |window| {
8796 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
8797 });
8798
8799 let wrap_guides = self.layout_wrap_guides(
8800 em_advance,
8801 scroll_position,
8802 content_origin,
8803 scrollbars_layout.as_ref(),
8804 vertical_scrollbar_width,
8805 &hitbox,
8806 window,
8807 cx,
8808 );
8809
8810 let minimap = window.with_element_namespace("minimap", |window| {
8811 self.layout_minimap(
8812 &snapshot,
8813 minimap_width,
8814 scroll_position,
8815 &scrollbar_layout_information,
8816 scrollbars_layout.as_ref(),
8817 window,
8818 cx,
8819 )
8820 });
8821
8822 let invisible_symbol_font_size = font_size / 2.;
8823 let tab_invisible = window.text_system().shape_line(
8824 "→".into(),
8825 invisible_symbol_font_size,
8826 &[TextRun {
8827 len: "→".len(),
8828 font: self.style.text.font(),
8829 color: cx.theme().colors().editor_invisible,
8830 background_color: None,
8831 underline: None,
8832 strikethrough: None,
8833 }],
8834 );
8835 let space_invisible = window.text_system().shape_line(
8836 "•".into(),
8837 invisible_symbol_font_size,
8838 &[TextRun {
8839 len: "•".len(),
8840 font: self.style.text.font(),
8841 color: cx.theme().colors().editor_invisible,
8842 background_color: None,
8843 underline: None,
8844 strikethrough: None,
8845 }],
8846 );
8847
8848 let mode = snapshot.mode.clone();
8849
8850 let (diff_hunk_controls, diff_hunk_control_bounds) = if is_read_only {
8851 (vec![], vec![])
8852 } else {
8853 self.layout_diff_hunk_controls(
8854 start_row..end_row,
8855 &row_infos,
8856 &text_hitbox,
8857 newest_selection_head,
8858 line_height,
8859 right_margin,
8860 scroll_pixel_position,
8861 &display_hunks,
8862 &highlighted_rows,
8863 self.editor.clone(),
8864 window,
8865 cx,
8866 )
8867 };
8868
8869 let position_map = Rc::new(PositionMap {
8870 size: bounds.size,
8871 visible_row_range,
8872 scroll_pixel_position,
8873 scroll_max,
8874 line_layouts,
8875 line_height,
8876 em_width,
8877 em_advance,
8878 snapshot,
8879 gutter_hitbox: gutter_hitbox.clone(),
8880 text_hitbox: text_hitbox.clone(),
8881 inline_blame_bounds: inline_blame_layout
8882 .as_ref()
8883 .map(|layout| (layout.bounds, layout.entry.clone())),
8884 display_hunks: display_hunks.clone(),
8885 diff_hunk_control_bounds: diff_hunk_control_bounds.clone(),
8886 });
8887
8888 self.editor.update(cx, |editor, _| {
8889 editor.last_position_map = Some(position_map.clone())
8890 });
8891
8892 EditorLayout {
8893 mode,
8894 position_map,
8895 visible_display_row_range: start_row..end_row,
8896 wrap_guides,
8897 indent_guides,
8898 hitbox,
8899 gutter_hitbox,
8900 display_hunks,
8901 content_origin,
8902 scrollbars_layout,
8903 minimap,
8904 active_rows,
8905 highlighted_rows,
8906 highlighted_ranges,
8907 highlighted_gutter_ranges,
8908 redacted_ranges,
8909 document_colors,
8910 line_elements,
8911 line_numbers,
8912 blamed_display_rows,
8913 inline_diagnostics,
8914 inline_blame_layout,
8915 inline_code_actions,
8916 blocks,
8917 cursors,
8918 visible_cursors,
8919 selections,
8920 inline_completion_popover,
8921 diff_hunk_controls,
8922 mouse_context_menu,
8923 test_indicators,
8924 breakpoints,
8925 crease_toggles,
8926 crease_trailers,
8927 tab_invisible,
8928 space_invisible,
8929 sticky_buffer_header,
8930 expand_toggles,
8931 }
8932 })
8933 })
8934 })
8935 }
8936
8937 fn paint(
8938 &mut self,
8939 _: Option<&GlobalElementId>,
8940 _inspector_id: Option<&gpui::InspectorElementId>,
8941 bounds: Bounds<gpui::Pixels>,
8942 _: &mut Self::RequestLayoutState,
8943 layout: &mut Self::PrepaintState,
8944 window: &mut Window,
8945 cx: &mut App,
8946 ) {
8947 let focus_handle = self.editor.focus_handle(cx);
8948 let key_context = self
8949 .editor
8950 .update(cx, |editor, cx| editor.key_context(window, cx));
8951
8952 window.set_key_context(key_context);
8953 window.handle_input(
8954 &focus_handle,
8955 ElementInputHandler::new(bounds, self.editor.clone()),
8956 cx,
8957 );
8958 self.register_actions(window, cx);
8959 self.register_key_listeners(window, cx, layout);
8960
8961 let text_style = TextStyleRefinement {
8962 font_size: Some(self.style.text.font_size),
8963 line_height: Some(self.style.text.line_height),
8964 ..Default::default()
8965 };
8966 let rem_size = self.rem_size(cx);
8967 window.with_rem_size(rem_size, |window| {
8968 window.with_text_style(Some(text_style), |window| {
8969 window.with_content_mask(Some(ContentMask { bounds }), |window| {
8970 self.paint_mouse_listeners(layout, window, cx);
8971 self.paint_background(layout, window, cx);
8972 self.paint_indent_guides(layout, window, cx);
8973
8974 if layout.gutter_hitbox.size.width > Pixels::ZERO {
8975 self.paint_blamed_display_rows(layout, window, cx);
8976 self.paint_line_numbers(layout, window, cx);
8977 }
8978
8979 self.paint_text(layout, window, cx);
8980
8981 if layout.gutter_hitbox.size.width > Pixels::ZERO {
8982 self.paint_gutter_highlights(layout, window, cx);
8983 self.paint_gutter_indicators(layout, window, cx);
8984 }
8985
8986 if !layout.blocks.is_empty() {
8987 window.with_element_namespace("blocks", |window| {
8988 self.paint_blocks(layout, window, cx);
8989 });
8990 }
8991
8992 window.with_element_namespace("blocks", |window| {
8993 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
8994 sticky_header.paint(window, cx)
8995 }
8996 });
8997
8998 self.paint_minimap(layout, window, cx);
8999 self.paint_scrollbars(layout, window, cx);
9000 self.paint_inline_completion_popover(layout, window, cx);
9001 self.paint_mouse_context_menu(layout, window, cx);
9002 });
9003 })
9004 })
9005 }
9006}
9007
9008pub(super) fn gutter_bounds(
9009 editor_bounds: Bounds<Pixels>,
9010 gutter_dimensions: GutterDimensions,
9011) -> Bounds<Pixels> {
9012 Bounds {
9013 origin: editor_bounds.origin,
9014 size: size(gutter_dimensions.width, editor_bounds.size.height),
9015 }
9016}
9017
9018#[derive(Clone, Copy)]
9019struct ContextMenuLayout {
9020 y_flipped: bool,
9021 bounds: Bounds<Pixels>,
9022}
9023
9024/// Holds information required for layouting the editor scrollbars.
9025struct ScrollbarLayoutInformation {
9026 /// The bounds of the editor area (excluding the content offset).
9027 editor_bounds: Bounds<Pixels>,
9028 /// The available range to scroll within the document.
9029 scroll_range: Size<Pixels>,
9030 /// The space available for one glyph in the editor.
9031 glyph_grid_cell: Size<Pixels>,
9032}
9033
9034impl ScrollbarLayoutInformation {
9035 pub fn new(
9036 editor_bounds: Bounds<Pixels>,
9037 glyph_grid_cell: Size<Pixels>,
9038 document_size: Size<Pixels>,
9039 longest_line_blame_width: Pixels,
9040 editor_width: Pixels,
9041 settings: &EditorSettings,
9042 ) -> Self {
9043 let vertical_overscroll = match settings.scroll_beyond_last_line {
9044 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
9045 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
9046 ScrollBeyondLastLine::VerticalScrollMargin => {
9047 (1.0 + settings.vertical_scroll_margin) * glyph_grid_cell.height
9048 }
9049 };
9050
9051 let right_margin = if document_size.width + longest_line_blame_width >= editor_width {
9052 glyph_grid_cell.width
9053 } else {
9054 px(0.0)
9055 };
9056
9057 let overscroll = size(right_margin + longest_line_blame_width, vertical_overscroll);
9058
9059 let scroll_range = document_size + overscroll;
9060
9061 ScrollbarLayoutInformation {
9062 editor_bounds,
9063 scroll_range,
9064 glyph_grid_cell,
9065 }
9066 }
9067}
9068
9069impl IntoElement for EditorElement {
9070 type Element = Self;
9071
9072 fn into_element(self) -> Self::Element {
9073 self
9074 }
9075}
9076
9077pub struct EditorLayout {
9078 position_map: Rc<PositionMap>,
9079 hitbox: Hitbox,
9080 gutter_hitbox: Hitbox,
9081 content_origin: gpui::Point<Pixels>,
9082 scrollbars_layout: Option<EditorScrollbars>,
9083 minimap: Option<MinimapLayout>,
9084 mode: EditorMode,
9085 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
9086 indent_guides: Option<Vec<IndentGuideLayout>>,
9087 visible_display_row_range: Range<DisplayRow>,
9088 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
9089 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
9090 line_elements: SmallVec<[AnyElement; 1]>,
9091 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
9092 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
9093 blamed_display_rows: Option<Vec<AnyElement>>,
9094 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
9095 inline_blame_layout: Option<InlineBlameLayout>,
9096 inline_code_actions: Option<AnyElement>,
9097 blocks: Vec<BlockLayout>,
9098 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
9099 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
9100 redacted_ranges: Vec<Range<DisplayPoint>>,
9101 cursors: Vec<(DisplayPoint, Hsla)>,
9102 visible_cursors: Vec<CursorLayout>,
9103 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
9104 test_indicators: Vec<AnyElement>,
9105 breakpoints: Vec<AnyElement>,
9106 crease_toggles: Vec<Option<AnyElement>>,
9107 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
9108 diff_hunk_controls: Vec<AnyElement>,
9109 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
9110 inline_completion_popover: Option<AnyElement>,
9111 mouse_context_menu: Option<AnyElement>,
9112 tab_invisible: ShapedLine,
9113 space_invisible: ShapedLine,
9114 sticky_buffer_header: Option<AnyElement>,
9115 document_colors: Option<(DocumentColorsRenderMode, Vec<(Range<DisplayPoint>, Hsla)>)>,
9116}
9117
9118impl EditorLayout {
9119 fn line_end_overshoot(&self) -> Pixels {
9120 0.15 * self.position_map.line_height
9121 }
9122}
9123
9124struct LineNumberLayout {
9125 shaped_line: ShapedLine,
9126 hitbox: Option<Hitbox>,
9127}
9128
9129struct ColoredRange<T> {
9130 start: T,
9131 end: T,
9132 color: Hsla,
9133}
9134
9135impl Along for ScrollbarAxes {
9136 type Unit = bool;
9137
9138 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
9139 match axis {
9140 ScrollbarAxis::Horizontal => self.horizontal,
9141 ScrollbarAxis::Vertical => self.vertical,
9142 }
9143 }
9144
9145 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
9146 match axis {
9147 ScrollbarAxis::Horizontal => ScrollbarAxes {
9148 horizontal: f(self.horizontal),
9149 vertical: self.vertical,
9150 },
9151 ScrollbarAxis::Vertical => ScrollbarAxes {
9152 horizontal: self.horizontal,
9153 vertical: f(self.vertical),
9154 },
9155 }
9156 }
9157}
9158
9159#[derive(Clone)]
9160struct EditorScrollbars {
9161 pub vertical: Option<ScrollbarLayout>,
9162 pub horizontal: Option<ScrollbarLayout>,
9163 pub visible: bool,
9164}
9165
9166impl EditorScrollbars {
9167 pub fn from_scrollbar_axes(
9168 settings_visibility: ScrollbarAxes,
9169 layout_information: &ScrollbarLayoutInformation,
9170 content_offset: gpui::Point<Pixels>,
9171 scroll_position: gpui::Point<f32>,
9172 scrollbar_width: Pixels,
9173 right_margin: Pixels,
9174 editor_width: Pixels,
9175 show_scrollbars: bool,
9176 scrollbar_state: Option<&ActiveScrollbarState>,
9177 window: &mut Window,
9178 ) -> Self {
9179 let ScrollbarLayoutInformation {
9180 editor_bounds,
9181 scroll_range,
9182 glyph_grid_cell,
9183 } = layout_information;
9184
9185 let viewport_size = size(editor_width, editor_bounds.size.height);
9186
9187 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
9188 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
9189 Corner::BottomLeft,
9190 editor_bounds.bottom_left(),
9191 size(
9192 // The horizontal viewport size differs from the space available for the
9193 // horizontal scrollbar, so we have to manually stich it together here.
9194 editor_bounds.size.width - right_margin,
9195 scrollbar_width,
9196 ),
9197 ),
9198 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
9199 Corner::TopRight,
9200 editor_bounds.top_right(),
9201 size(scrollbar_width, viewport_size.height),
9202 ),
9203 };
9204
9205 let mut create_scrollbar_layout = |axis| {
9206 settings_visibility
9207 .along(axis)
9208 .then(|| {
9209 (
9210 viewport_size.along(axis) - content_offset.along(axis),
9211 scroll_range.along(axis),
9212 )
9213 })
9214 .filter(|(viewport_size, scroll_range)| {
9215 // The scrollbar should only be rendered if the content does
9216 // not entirely fit into the editor
9217 // However, this only applies to the horizontal scrollbar, as information about the
9218 // vertical scrollbar layout is always needed for scrollbar diagnostics.
9219 axis != ScrollbarAxis::Horizontal || viewport_size < scroll_range
9220 })
9221 .map(|(viewport_size, scroll_range)| {
9222 ScrollbarLayout::new(
9223 window.insert_hitbox(scrollbar_bounds_for(axis), HitboxBehavior::Normal),
9224 viewport_size,
9225 scroll_range,
9226 glyph_grid_cell.along(axis),
9227 content_offset.along(axis),
9228 scroll_position.along(axis),
9229 show_scrollbars,
9230 axis,
9231 )
9232 .with_thumb_state(
9233 scrollbar_state.and_then(|state| state.thumb_state_for_axis(axis)),
9234 )
9235 })
9236 };
9237
9238 Self {
9239 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
9240 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
9241 visible: show_scrollbars,
9242 }
9243 }
9244
9245 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
9246 [
9247 (&self.vertical, ScrollbarAxis::Vertical),
9248 (&self.horizontal, ScrollbarAxis::Horizontal),
9249 ]
9250 .into_iter()
9251 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
9252 }
9253
9254 /// Returns the currently hovered scrollbar axis, if any.
9255 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
9256 self.iter_scrollbars()
9257 .find(|s| s.0.hitbox.is_hovered(window))
9258 }
9259}
9260
9261#[derive(Clone)]
9262struct ScrollbarLayout {
9263 hitbox: Hitbox,
9264 visible_range: Range<f32>,
9265 text_unit_size: Pixels,
9266 thumb_bounds: Option<Bounds<Pixels>>,
9267 thumb_state: ScrollbarThumbState,
9268}
9269
9270impl ScrollbarLayout {
9271 const BORDER_WIDTH: Pixels = px(1.0);
9272 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
9273 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
9274 const MIN_THUMB_SIZE: Pixels = px(25.0);
9275
9276 fn new(
9277 scrollbar_track_hitbox: Hitbox,
9278 viewport_size: Pixels,
9279 scroll_range: Pixels,
9280 glyph_space: Pixels,
9281 content_offset: Pixels,
9282 scroll_position: f32,
9283 show_thumb: bool,
9284 axis: ScrollbarAxis,
9285 ) -> Self {
9286 let track_bounds = scrollbar_track_hitbox.bounds;
9287 // The length of the track available to the scrollbar thumb. We deliberately
9288 // exclude the content size here so that the thumb aligns with the content.
9289 let track_length = track_bounds.size.along(axis) - content_offset;
9290
9291 Self::new_with_hitbox_and_track_length(
9292 scrollbar_track_hitbox,
9293 track_length,
9294 viewport_size,
9295 scroll_range,
9296 glyph_space,
9297 content_offset,
9298 scroll_position,
9299 show_thumb,
9300 axis,
9301 )
9302 }
9303
9304 fn for_minimap(
9305 minimap_track_hitbox: Hitbox,
9306 visible_lines: f32,
9307 total_editor_lines: f32,
9308 minimap_line_height: Pixels,
9309 scroll_position: f32,
9310 minimap_scroll_top: f32,
9311 show_thumb: bool,
9312 ) -> Self {
9313 // The scrollbar thumb size is calculated as
9314 // (visible_content/total_content) × scrollbar_track_length.
9315 //
9316 // For the minimap's thumb layout, we leverage this by setting the
9317 // scrollbar track length to the entire document size (using minimap line
9318 // height). This creates a thumb that exactly represents the editor
9319 // viewport scaled to minimap proportions.
9320 //
9321 // We adjust the thumb position relative to `minimap_scroll_top` to
9322 // accommodate for the deliberately oversized track.
9323 //
9324 // This approach ensures that the minimap thumb accurately reflects the
9325 // editor's current scroll position whilst nicely synchronizing the minimap
9326 // thumb and scrollbar thumb.
9327 let scroll_range = total_editor_lines * minimap_line_height;
9328 let viewport_size = visible_lines * minimap_line_height;
9329
9330 let track_top_offset = -minimap_scroll_top * minimap_line_height;
9331
9332 Self::new_with_hitbox_and_track_length(
9333 minimap_track_hitbox,
9334 scroll_range,
9335 viewport_size,
9336 scroll_range,
9337 minimap_line_height,
9338 track_top_offset,
9339 scroll_position,
9340 show_thumb,
9341 ScrollbarAxis::Vertical,
9342 )
9343 }
9344
9345 fn new_with_hitbox_and_track_length(
9346 scrollbar_track_hitbox: Hitbox,
9347 track_length: Pixels,
9348 viewport_size: Pixels,
9349 scroll_range: Pixels,
9350 glyph_space: Pixels,
9351 content_offset: Pixels,
9352 scroll_position: f32,
9353 show_thumb: bool,
9354 axis: ScrollbarAxis,
9355 ) -> Self {
9356 let text_units_per_page = viewport_size / glyph_space;
9357 let visible_range = scroll_position..scroll_position + text_units_per_page;
9358 let total_text_units = scroll_range / glyph_space;
9359
9360 let thumb_percentage = text_units_per_page / total_text_units;
9361 let thumb_size = (track_length * thumb_percentage)
9362 .max(ScrollbarLayout::MIN_THUMB_SIZE)
9363 .min(track_length);
9364
9365 let text_unit_divisor = (total_text_units - text_units_per_page).max(0.);
9366
9367 let content_larger_than_viewport = text_unit_divisor > 0.;
9368
9369 let text_unit_size = if content_larger_than_viewport {
9370 (track_length - thumb_size) / text_unit_divisor
9371 } else {
9372 glyph_space
9373 };
9374
9375 let thumb_bounds = (show_thumb && content_larger_than_viewport).then(|| {
9376 Self::thumb_bounds(
9377 &scrollbar_track_hitbox,
9378 content_offset,
9379 visible_range.start,
9380 text_unit_size,
9381 thumb_size,
9382 axis,
9383 )
9384 });
9385
9386 ScrollbarLayout {
9387 hitbox: scrollbar_track_hitbox,
9388 visible_range,
9389 text_unit_size,
9390 thumb_bounds,
9391 thumb_state: Default::default(),
9392 }
9393 }
9394
9395 fn with_thumb_state(self, thumb_state: Option<ScrollbarThumbState>) -> Self {
9396 if let Some(thumb_state) = thumb_state {
9397 Self {
9398 thumb_state,
9399 ..self
9400 }
9401 } else {
9402 self
9403 }
9404 }
9405
9406 fn thumb_bounds(
9407 scrollbar_track: &Hitbox,
9408 content_offset: Pixels,
9409 visible_range_start: f32,
9410 text_unit_size: Pixels,
9411 thumb_size: Pixels,
9412 axis: ScrollbarAxis,
9413 ) -> Bounds<Pixels> {
9414 let thumb_origin = scrollbar_track.origin.apply_along(axis, |origin| {
9415 origin + content_offset + visible_range_start * text_unit_size
9416 });
9417 Bounds::new(
9418 thumb_origin,
9419 scrollbar_track.size.apply_along(axis, |_| thumb_size),
9420 )
9421 }
9422
9423 fn thumb_hovered(&self, position: &gpui::Point<Pixels>) -> bool {
9424 self.thumb_bounds
9425 .is_some_and(|bounds| bounds.contains(position))
9426 }
9427
9428 fn marker_quads_for_ranges(
9429 &self,
9430 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
9431 column: Option<usize>,
9432 ) -> Vec<PaintQuad> {
9433 struct MinMax {
9434 min: Pixels,
9435 max: Pixels,
9436 }
9437 let (x_range, height_limit) = if let Some(column) = column {
9438 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
9439 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
9440 let end = start + column_width;
9441 (
9442 Range { start, end },
9443 MinMax {
9444 min: Self::MIN_MARKER_HEIGHT,
9445 max: px(f32::MAX),
9446 },
9447 )
9448 } else {
9449 (
9450 Range {
9451 start: Self::BORDER_WIDTH,
9452 end: self.hitbox.size.width,
9453 },
9454 MinMax {
9455 min: Self::LINE_MARKER_HEIGHT,
9456 max: Self::LINE_MARKER_HEIGHT,
9457 },
9458 )
9459 };
9460
9461 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
9462 let mut pixel_ranges = row_ranges
9463 .into_iter()
9464 .map(|range| {
9465 let start_y = row_to_y(range.start);
9466 let end_y = row_to_y(range.end)
9467 + self
9468 .text_unit_size
9469 .max(height_limit.min)
9470 .min(height_limit.max);
9471 ColoredRange {
9472 start: start_y,
9473 end: end_y,
9474 color: range.color,
9475 }
9476 })
9477 .peekable();
9478
9479 let mut quads = Vec::new();
9480 while let Some(mut pixel_range) = pixel_ranges.next() {
9481 while let Some(next_pixel_range) = pixel_ranges.peek() {
9482 if pixel_range.end >= next_pixel_range.start - px(1.0)
9483 && pixel_range.color == next_pixel_range.color
9484 {
9485 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
9486 pixel_ranges.next();
9487 } else {
9488 break;
9489 }
9490 }
9491
9492 let bounds = Bounds::from_corners(
9493 point(x_range.start, pixel_range.start),
9494 point(x_range.end, pixel_range.end),
9495 );
9496 quads.push(quad(
9497 bounds,
9498 Corners::default(),
9499 pixel_range.color,
9500 Edges::default(),
9501 Hsla::transparent_black(),
9502 BorderStyle::default(),
9503 ));
9504 }
9505
9506 quads
9507 }
9508}
9509
9510struct MinimapLayout {
9511 pub minimap: AnyElement,
9512 pub thumb_layout: ScrollbarLayout,
9513 pub minimap_scroll_top: f32,
9514 pub minimap_line_height: Pixels,
9515 pub thumb_border_style: MinimapThumbBorder,
9516 pub max_scroll_top: f32,
9517}
9518
9519impl MinimapLayout {
9520 /// The minimum width of the minimap in columns. If the minimap is smaller than this, it will be hidden.
9521 const MINIMAP_MIN_WIDTH_COLUMNS: f32 = 20.;
9522 /// The minimap width as a percentage of the editor width.
9523 const MINIMAP_WIDTH_PCT: f32 = 0.15;
9524 /// Calculates the scroll top offset the minimap editor has to have based on the
9525 /// current scroll progress.
9526 fn calculate_minimap_top_offset(
9527 document_lines: f32,
9528 visible_editor_lines: f32,
9529 visible_minimap_lines: f32,
9530 scroll_position: f32,
9531 ) -> f32 {
9532 let non_visible_document_lines = (document_lines - visible_editor_lines).max(0.);
9533 if non_visible_document_lines == 0. {
9534 0.
9535 } else {
9536 let scroll_percentage = (scroll_position / non_visible_document_lines).clamp(0., 1.);
9537 scroll_percentage * (document_lines - visible_minimap_lines).max(0.)
9538 }
9539 }
9540}
9541
9542struct CreaseTrailerLayout {
9543 element: AnyElement,
9544 bounds: Bounds<Pixels>,
9545}
9546
9547pub(crate) struct PositionMap {
9548 pub size: Size<Pixels>,
9549 pub line_height: Pixels,
9550 pub scroll_pixel_position: gpui::Point<Pixels>,
9551 pub scroll_max: gpui::Point<f32>,
9552 pub em_width: Pixels,
9553 pub em_advance: Pixels,
9554 pub visible_row_range: Range<DisplayRow>,
9555 pub line_layouts: Vec<LineWithInvisibles>,
9556 pub snapshot: EditorSnapshot,
9557 pub text_hitbox: Hitbox,
9558 pub gutter_hitbox: Hitbox,
9559 pub inline_blame_bounds: Option<(Bounds<Pixels>, BlameEntry)>,
9560 pub display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
9561 pub diff_hunk_control_bounds: Vec<(DisplayRow, Bounds<Pixels>)>,
9562}
9563
9564#[derive(Debug, Copy, Clone)]
9565pub struct PointForPosition {
9566 pub previous_valid: DisplayPoint,
9567 pub next_valid: DisplayPoint,
9568 pub exact_unclipped: DisplayPoint,
9569 pub column_overshoot_after_line_end: u32,
9570}
9571
9572impl PointForPosition {
9573 pub fn as_valid(&self) -> Option<DisplayPoint> {
9574 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
9575 Some(self.previous_valid)
9576 } else {
9577 None
9578 }
9579 }
9580
9581 pub fn intersects_selection(&self, selection: &Selection<DisplayPoint>) -> bool {
9582 let Some(valid_point) = self.as_valid() else {
9583 return false;
9584 };
9585 let range = selection.range();
9586
9587 let candidate_row = valid_point.row();
9588 let candidate_col = valid_point.column();
9589
9590 let start_row = range.start.row();
9591 let start_col = range.start.column();
9592 let end_row = range.end.row();
9593 let end_col = range.end.column();
9594
9595 if candidate_row < start_row || candidate_row > end_row {
9596 false
9597 } else if start_row == end_row {
9598 candidate_col >= start_col && candidate_col < end_col
9599 } else {
9600 if candidate_row == start_row {
9601 candidate_col >= start_col
9602 } else if candidate_row == end_row {
9603 candidate_col < end_col
9604 } else {
9605 true
9606 }
9607 }
9608 }
9609}
9610
9611impl PositionMap {
9612 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
9613 let text_bounds = self.text_hitbox.bounds;
9614 let scroll_position = self.snapshot.scroll_position();
9615 let position = position - text_bounds.origin;
9616 let y = position.y.max(px(0.)).min(self.size.height);
9617 let x = position.x + (scroll_position.x * self.em_advance);
9618 let row = ((y / self.line_height) + scroll_position.y) as u32;
9619
9620 let (column, x_overshoot_after_line_end) = if let Some(line) = self
9621 .line_layouts
9622 .get(row as usize - scroll_position.y as usize)
9623 {
9624 if let Some(ix) = line.index_for_x(x) {
9625 (ix as u32, px(0.))
9626 } else {
9627 (line.len as u32, px(0.).max(x - line.width))
9628 }
9629 } else {
9630 (0, x)
9631 };
9632
9633 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
9634 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
9635 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
9636
9637 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
9638 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
9639 PointForPosition {
9640 previous_valid,
9641 next_valid,
9642 exact_unclipped,
9643 column_overshoot_after_line_end,
9644 }
9645 }
9646}
9647
9648struct BlockLayout {
9649 id: BlockId,
9650 x_offset: Pixels,
9651 row: Option<DisplayRow>,
9652 element: AnyElement,
9653 available_space: Size<AvailableSpace>,
9654 style: BlockStyle,
9655 overlaps_gutter: bool,
9656 is_buffer_header: bool,
9657}
9658
9659pub fn layout_line(
9660 row: DisplayRow,
9661 snapshot: &EditorSnapshot,
9662 style: &EditorStyle,
9663 text_width: Pixels,
9664 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
9665 window: &mut Window,
9666 cx: &mut App,
9667) -> LineWithInvisibles {
9668 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
9669 LineWithInvisibles::from_chunks(
9670 chunks,
9671 &style,
9672 MAX_LINE_LEN,
9673 1,
9674 &snapshot.mode,
9675 text_width,
9676 is_row_soft_wrapped,
9677 window,
9678 cx,
9679 )
9680 .pop()
9681 .unwrap()
9682}
9683
9684#[derive(Debug)]
9685pub struct IndentGuideLayout {
9686 origin: gpui::Point<Pixels>,
9687 length: Pixels,
9688 single_indent_width: Pixels,
9689 depth: u32,
9690 active: bool,
9691 settings: IndentGuideSettings,
9692}
9693
9694pub struct CursorLayout {
9695 origin: gpui::Point<Pixels>,
9696 block_width: Pixels,
9697 line_height: Pixels,
9698 color: Hsla,
9699 shape: CursorShape,
9700 block_text: Option<ShapedLine>,
9701 cursor_name: Option<AnyElement>,
9702}
9703
9704#[derive(Debug)]
9705pub struct CursorName {
9706 string: SharedString,
9707 color: Hsla,
9708 is_top_row: bool,
9709}
9710
9711impl CursorLayout {
9712 pub fn new(
9713 origin: gpui::Point<Pixels>,
9714 block_width: Pixels,
9715 line_height: Pixels,
9716 color: Hsla,
9717 shape: CursorShape,
9718 block_text: Option<ShapedLine>,
9719 ) -> CursorLayout {
9720 CursorLayout {
9721 origin,
9722 block_width,
9723 line_height,
9724 color,
9725 shape,
9726 block_text,
9727 cursor_name: None,
9728 }
9729 }
9730
9731 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
9732 Bounds {
9733 origin: self.origin + origin,
9734 size: size(self.block_width, self.line_height),
9735 }
9736 }
9737
9738 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
9739 match self.shape {
9740 CursorShape::Bar => Bounds {
9741 origin: self.origin + origin,
9742 size: size(px(2.0), self.line_height),
9743 },
9744 CursorShape::Block | CursorShape::Hollow => Bounds {
9745 origin: self.origin + origin,
9746 size: size(self.block_width, self.line_height),
9747 },
9748 CursorShape::Underline => Bounds {
9749 origin: self.origin
9750 + origin
9751 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
9752 size: size(self.block_width, px(2.0)),
9753 },
9754 }
9755 }
9756
9757 pub fn layout(
9758 &mut self,
9759 origin: gpui::Point<Pixels>,
9760 cursor_name: Option<CursorName>,
9761 window: &mut Window,
9762 cx: &mut App,
9763 ) {
9764 if let Some(cursor_name) = cursor_name {
9765 let bounds = self.bounds(origin);
9766 let text_size = self.line_height / 1.5;
9767
9768 let name_origin = if cursor_name.is_top_row {
9769 point(bounds.right() - px(1.), bounds.top())
9770 } else {
9771 match self.shape {
9772 CursorShape::Bar => point(
9773 bounds.right() - px(2.),
9774 bounds.top() - text_size / 2. - px(1.),
9775 ),
9776 _ => point(
9777 bounds.right() - px(1.),
9778 bounds.top() - text_size / 2. - px(1.),
9779 ),
9780 }
9781 };
9782 let mut name_element = div()
9783 .bg(self.color)
9784 .text_size(text_size)
9785 .px_0p5()
9786 .line_height(text_size + px(2.))
9787 .text_color(cursor_name.color)
9788 .child(cursor_name.string.clone())
9789 .into_any_element();
9790
9791 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
9792
9793 self.cursor_name = Some(name_element);
9794 }
9795 }
9796
9797 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
9798 let bounds = self.bounds(origin);
9799
9800 //Draw background or border quad
9801 let cursor = if matches!(self.shape, CursorShape::Hollow) {
9802 outline(bounds, self.color, BorderStyle::Solid)
9803 } else {
9804 fill(bounds, self.color)
9805 };
9806
9807 if let Some(name) = &mut self.cursor_name {
9808 name.paint(window, cx);
9809 }
9810
9811 window.paint_quad(cursor);
9812
9813 if let Some(block_text) = &self.block_text {
9814 block_text
9815 .paint(self.origin + origin, self.line_height, window, cx)
9816 .log_err();
9817 }
9818 }
9819
9820 pub fn shape(&self) -> CursorShape {
9821 self.shape
9822 }
9823}
9824
9825#[derive(Debug)]
9826pub struct HighlightedRange {
9827 pub start_y: Pixels,
9828 pub line_height: Pixels,
9829 pub lines: Vec<HighlightedRangeLine>,
9830 pub color: Hsla,
9831 pub corner_radius: Pixels,
9832}
9833
9834#[derive(Debug)]
9835pub struct HighlightedRangeLine {
9836 pub start_x: Pixels,
9837 pub end_x: Pixels,
9838}
9839
9840impl HighlightedRange {
9841 pub fn paint(&self, fill: bool, bounds: Bounds<Pixels>, window: &mut Window) {
9842 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
9843 self.paint_lines(self.start_y, &self.lines[0..1], fill, bounds, window);
9844 self.paint_lines(
9845 self.start_y + self.line_height,
9846 &self.lines[1..],
9847 fill,
9848 bounds,
9849 window,
9850 );
9851 } else {
9852 self.paint_lines(self.start_y, &self.lines, fill, bounds, window);
9853 }
9854 }
9855
9856 fn paint_lines(
9857 &self,
9858 start_y: Pixels,
9859 lines: &[HighlightedRangeLine],
9860 fill: bool,
9861 _bounds: Bounds<Pixels>,
9862 window: &mut Window,
9863 ) {
9864 if lines.is_empty() {
9865 return;
9866 }
9867
9868 let first_line = lines.first().unwrap();
9869 let last_line = lines.last().unwrap();
9870
9871 let first_top_left = point(first_line.start_x, start_y);
9872 let first_top_right = point(first_line.end_x, start_y);
9873
9874 let curve_height = point(Pixels::ZERO, self.corner_radius);
9875 let curve_width = |start_x: Pixels, end_x: Pixels| {
9876 let max = (end_x - start_x) / 2.;
9877 let width = if max < self.corner_radius {
9878 max
9879 } else {
9880 self.corner_radius
9881 };
9882
9883 point(width, Pixels::ZERO)
9884 };
9885
9886 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
9887 let mut builder = if fill {
9888 gpui::PathBuilder::fill()
9889 } else {
9890 gpui::PathBuilder::stroke(px(1.))
9891 };
9892 builder.move_to(first_top_right - top_curve_width);
9893 builder.curve_to(first_top_right + curve_height, first_top_right);
9894
9895 let mut iter = lines.iter().enumerate().peekable();
9896 while let Some((ix, line)) = iter.next() {
9897 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
9898
9899 if let Some((_, next_line)) = iter.peek() {
9900 let next_top_right = point(next_line.end_x, bottom_right.y);
9901
9902 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
9903 Ordering::Equal => {
9904 builder.line_to(bottom_right);
9905 }
9906 Ordering::Less => {
9907 let curve_width = curve_width(next_top_right.x, bottom_right.x);
9908 builder.line_to(bottom_right - curve_height);
9909 if self.corner_radius > Pixels::ZERO {
9910 builder.curve_to(bottom_right - curve_width, bottom_right);
9911 }
9912 builder.line_to(next_top_right + curve_width);
9913 if self.corner_radius > Pixels::ZERO {
9914 builder.curve_to(next_top_right + curve_height, next_top_right);
9915 }
9916 }
9917 Ordering::Greater => {
9918 let curve_width = curve_width(bottom_right.x, next_top_right.x);
9919 builder.line_to(bottom_right - curve_height);
9920 if self.corner_radius > Pixels::ZERO {
9921 builder.curve_to(bottom_right + curve_width, bottom_right);
9922 }
9923 builder.line_to(next_top_right - curve_width);
9924 if self.corner_radius > Pixels::ZERO {
9925 builder.curve_to(next_top_right + curve_height, next_top_right);
9926 }
9927 }
9928 }
9929 } else {
9930 let curve_width = curve_width(line.start_x, line.end_x);
9931 builder.line_to(bottom_right - curve_height);
9932 if self.corner_radius > Pixels::ZERO {
9933 builder.curve_to(bottom_right - curve_width, bottom_right);
9934 }
9935
9936 let bottom_left = point(line.start_x, bottom_right.y);
9937 builder.line_to(bottom_left + curve_width);
9938 if self.corner_radius > Pixels::ZERO {
9939 builder.curve_to(bottom_left - curve_height, bottom_left);
9940 }
9941 }
9942 }
9943
9944 if first_line.start_x > last_line.start_x {
9945 let curve_width = curve_width(last_line.start_x, first_line.start_x);
9946 let second_top_left = point(last_line.start_x, start_y + self.line_height);
9947 builder.line_to(second_top_left + curve_height);
9948 if self.corner_radius > Pixels::ZERO {
9949 builder.curve_to(second_top_left + curve_width, second_top_left);
9950 }
9951 let first_bottom_left = point(first_line.start_x, second_top_left.y);
9952 builder.line_to(first_bottom_left - curve_width);
9953 if self.corner_radius > Pixels::ZERO {
9954 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
9955 }
9956 }
9957
9958 builder.line_to(first_top_left + curve_height);
9959 if self.corner_radius > Pixels::ZERO {
9960 builder.curve_to(first_top_left + top_curve_width, first_top_left);
9961 }
9962 builder.line_to(first_top_right - top_curve_width);
9963
9964 if let Ok(path) = builder.build() {
9965 window.paint_path(path, self.color);
9966 }
9967 }
9968}
9969
9970enum CursorPopoverType {
9971 CodeContextMenu,
9972 EditPrediction,
9973}
9974
9975pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
9976 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
9977}
9978
9979fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
9980 (delta.pow(1.2) / 300.0).into()
9981}
9982
9983pub fn register_action<T: Action>(
9984 editor: &Entity<Editor>,
9985 window: &mut Window,
9986 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
9987) {
9988 let editor = editor.clone();
9989 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
9990 let action = action.downcast_ref().unwrap();
9991 if phase == DispatchPhase::Bubble {
9992 editor.update(cx, |editor, cx| {
9993 listener(editor, action, window, cx);
9994 })
9995 }
9996 })
9997}
9998
9999fn compute_auto_height_layout(
10000 editor: &mut Editor,
10001 min_lines: usize,
10002 max_lines: Option<usize>,
10003 max_line_number_width: Pixels,
10004 known_dimensions: Size<Option<Pixels>>,
10005 available_width: AvailableSpace,
10006 window: &mut Window,
10007 cx: &mut Context<Editor>,
10008) -> Option<Size<Pixels>> {
10009 let width = known_dimensions.width.or({
10010 if let AvailableSpace::Definite(available_width) = available_width {
10011 Some(available_width)
10012 } else {
10013 None
10014 }
10015 })?;
10016 if let Some(height) = known_dimensions.height {
10017 return Some(size(width, height));
10018 }
10019
10020 let style = editor.style.as_ref().unwrap();
10021 let font_id = window.text_system().resolve_font(&style.text.font());
10022 let font_size = style.text.font_size.to_pixels(window.rem_size());
10023 let line_height = style.text.line_height_in_pixels(window.rem_size());
10024 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
10025
10026 let mut snapshot = editor.snapshot(window, cx);
10027 let gutter_dimensions = snapshot
10028 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
10029 .or_else(|| {
10030 editor
10031 .offset_content
10032 .then(|| GutterDimensions::default_with_margin(font_id, font_size, cx))
10033 })
10034 .unwrap_or_default();
10035
10036 editor.gutter_dimensions = gutter_dimensions;
10037 let text_width = width - gutter_dimensions.width;
10038 let overscroll = size(em_width, px(0.));
10039
10040 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
10041 if !matches!(editor.soft_wrap_mode(cx), SoftWrap::None) {
10042 if editor.set_wrap_width(Some(editor_width), cx) {
10043 snapshot = editor.snapshot(window, cx);
10044 }
10045 }
10046
10047 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
10048
10049 let min_height = line_height * min_lines as f32;
10050 let content_height = scroll_height.max(min_height);
10051
10052 let final_height = if let Some(max_lines) = max_lines {
10053 let max_height = line_height * max_lines as f32;
10054 content_height.min(max_height)
10055 } else {
10056 content_height
10057 };
10058
10059 Some(size(width, final_height))
10060}
10061
10062#[cfg(test)]
10063mod tests {
10064 use super::*;
10065 use crate::{
10066 Editor, MultiBuffer, SelectionEffects,
10067 display_map::{BlockPlacement, BlockProperties},
10068 editor_tests::{init_test, update_test_language_settings},
10069 };
10070 use gpui::{TestAppContext, VisualTestContext};
10071 use language::language_settings;
10072 use log::info;
10073 use std::num::NonZeroU32;
10074 use util::test::sample_text;
10075
10076 #[gpui::test]
10077 fn test_shape_line_numbers(cx: &mut TestAppContext) {
10078 init_test(cx, |_| {});
10079 let window = cx.add_window(|window, cx| {
10080 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
10081 Editor::new(EditorMode::full(), buffer, None, window, cx)
10082 });
10083
10084 let editor = window.root(cx).unwrap();
10085 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
10086 let line_height = window
10087 .update(cx, |_, window, _| {
10088 style.text.line_height_in_pixels(window.rem_size())
10089 })
10090 .unwrap();
10091 let element = EditorElement::new(&editor, style);
10092 let snapshot = window
10093 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
10094 .unwrap();
10095
10096 let layouts = cx
10097 .update_window(*window, |_, window, cx| {
10098 element.layout_line_numbers(
10099 None,
10100 GutterDimensions {
10101 left_padding: Pixels::ZERO,
10102 right_padding: Pixels::ZERO,
10103 width: px(30.0),
10104 margin: Pixels::ZERO,
10105 git_blame_entries_width: None,
10106 },
10107 line_height,
10108 gpui::Point::default(),
10109 DisplayRow(0)..DisplayRow(6),
10110 &(0..6)
10111 .map(|row| RowInfo {
10112 buffer_row: Some(row),
10113 ..Default::default()
10114 })
10115 .collect::<Vec<_>>(),
10116 &BTreeMap::default(),
10117 Some(DisplayPoint::new(DisplayRow(0), 0)),
10118 &snapshot,
10119 window,
10120 cx,
10121 )
10122 })
10123 .unwrap();
10124 assert_eq!(layouts.len(), 6);
10125
10126 let relative_rows = window
10127 .update(cx, |editor, window, cx| {
10128 let snapshot = editor.snapshot(window, cx);
10129 element.calculate_relative_line_numbers(
10130 &snapshot,
10131 &(DisplayRow(0)..DisplayRow(6)),
10132 Some(DisplayRow(3)),
10133 )
10134 })
10135 .unwrap();
10136 assert_eq!(relative_rows[&DisplayRow(0)], 3);
10137 assert_eq!(relative_rows[&DisplayRow(1)], 2);
10138 assert_eq!(relative_rows[&DisplayRow(2)], 1);
10139 // current line has no relative number
10140 assert_eq!(relative_rows[&DisplayRow(4)], 1);
10141 assert_eq!(relative_rows[&DisplayRow(5)], 2);
10142
10143 // works if cursor is before screen
10144 let relative_rows = window
10145 .update(cx, |editor, window, cx| {
10146 let snapshot = editor.snapshot(window, cx);
10147 element.calculate_relative_line_numbers(
10148 &snapshot,
10149 &(DisplayRow(3)..DisplayRow(6)),
10150 Some(DisplayRow(1)),
10151 )
10152 })
10153 .unwrap();
10154 assert_eq!(relative_rows.len(), 3);
10155 assert_eq!(relative_rows[&DisplayRow(3)], 2);
10156 assert_eq!(relative_rows[&DisplayRow(4)], 3);
10157 assert_eq!(relative_rows[&DisplayRow(5)], 4);
10158
10159 // works if cursor is after screen
10160 let relative_rows = window
10161 .update(cx, |editor, window, cx| {
10162 let snapshot = editor.snapshot(window, cx);
10163 element.calculate_relative_line_numbers(
10164 &snapshot,
10165 &(DisplayRow(0)..DisplayRow(3)),
10166 Some(DisplayRow(6)),
10167 )
10168 })
10169 .unwrap();
10170 assert_eq!(relative_rows.len(), 3);
10171 assert_eq!(relative_rows[&DisplayRow(0)], 5);
10172 assert_eq!(relative_rows[&DisplayRow(1)], 4);
10173 assert_eq!(relative_rows[&DisplayRow(2)], 3);
10174 }
10175
10176 #[gpui::test]
10177 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
10178 init_test(cx, |_| {});
10179
10180 let window = cx.add_window(|window, cx| {
10181 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
10182 Editor::new(EditorMode::full(), buffer, None, window, cx)
10183 });
10184 let cx = &mut VisualTestContext::from_window(*window, cx);
10185 let editor = window.root(cx).unwrap();
10186 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10187
10188 window
10189 .update(cx, |editor, window, cx| {
10190 editor.cursor_shape = CursorShape::Block;
10191 editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
10192 s.select_ranges([
10193 Point::new(0, 0)..Point::new(1, 0),
10194 Point::new(3, 2)..Point::new(3, 3),
10195 Point::new(5, 6)..Point::new(6, 0),
10196 ]);
10197 });
10198 })
10199 .unwrap();
10200
10201 let (_, state) = cx.draw(
10202 point(px(500.), px(500.)),
10203 size(px(500.), px(500.)),
10204 |_, _| EditorElement::new(&editor, style),
10205 );
10206
10207 assert_eq!(state.selections.len(), 1);
10208 let local_selections = &state.selections[0].1;
10209 assert_eq!(local_selections.len(), 3);
10210 // moves cursor back one line
10211 assert_eq!(
10212 local_selections[0].head,
10213 DisplayPoint::new(DisplayRow(0), 6)
10214 );
10215 assert_eq!(
10216 local_selections[0].range,
10217 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
10218 );
10219
10220 // moves cursor back one column
10221 assert_eq!(
10222 local_selections[1].range,
10223 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
10224 );
10225 assert_eq!(
10226 local_selections[1].head,
10227 DisplayPoint::new(DisplayRow(3), 2)
10228 );
10229
10230 // leaves cursor on the max point
10231 assert_eq!(
10232 local_selections[2].range,
10233 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
10234 );
10235 assert_eq!(
10236 local_selections[2].head,
10237 DisplayPoint::new(DisplayRow(6), 0)
10238 );
10239
10240 // active lines does not include 1 (even though the range of the selection does)
10241 assert_eq!(
10242 state.active_rows.keys().cloned().collect::<Vec<_>>(),
10243 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
10244 );
10245 }
10246
10247 #[gpui::test]
10248 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
10249 init_test(cx, |_| {});
10250
10251 let window = cx.add_window(|window, cx| {
10252 let buffer = MultiBuffer::build_simple("", cx);
10253 Editor::new(EditorMode::full(), buffer, None, window, cx)
10254 });
10255 let cx = &mut VisualTestContext::from_window(*window, cx);
10256 let editor = window.root(cx).unwrap();
10257 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10258 window
10259 .update(cx, |editor, window, cx| {
10260 editor.set_placeholder_text("hello", cx);
10261 editor.insert_blocks(
10262 [BlockProperties {
10263 style: BlockStyle::Fixed,
10264 placement: BlockPlacement::Above(Anchor::min()),
10265 height: Some(3),
10266 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
10267 priority: 0,
10268 render_in_minimap: true,
10269 }],
10270 None,
10271 cx,
10272 );
10273
10274 // Blur the editor so that it displays placeholder text.
10275 window.blur();
10276 })
10277 .unwrap();
10278
10279 let (_, state) = cx.draw(
10280 point(px(500.), px(500.)),
10281 size(px(500.), px(500.)),
10282 |_, _| EditorElement::new(&editor, style),
10283 );
10284 assert_eq!(state.position_map.line_layouts.len(), 4);
10285 assert_eq!(state.line_numbers.len(), 1);
10286 assert_eq!(
10287 state
10288 .line_numbers
10289 .get(&MultiBufferRow(0))
10290 .map(|line_number| line_number.shaped_line.text.as_ref()),
10291 Some("1")
10292 );
10293 }
10294
10295 #[gpui::test]
10296 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
10297 const TAB_SIZE: u32 = 4;
10298
10299 let input_text = "\t \t|\t| a b";
10300 let expected_invisibles = vec![
10301 Invisible::Tab {
10302 line_start_offset: 0,
10303 line_end_offset: TAB_SIZE as usize,
10304 },
10305 Invisible::Whitespace {
10306 line_offset: TAB_SIZE as usize,
10307 },
10308 Invisible::Tab {
10309 line_start_offset: TAB_SIZE as usize + 1,
10310 line_end_offset: TAB_SIZE as usize * 2,
10311 },
10312 Invisible::Tab {
10313 line_start_offset: TAB_SIZE as usize * 2 + 1,
10314 line_end_offset: TAB_SIZE as usize * 3,
10315 },
10316 Invisible::Whitespace {
10317 line_offset: TAB_SIZE as usize * 3 + 1,
10318 },
10319 Invisible::Whitespace {
10320 line_offset: TAB_SIZE as usize * 3 + 3,
10321 },
10322 ];
10323 assert_eq!(
10324 expected_invisibles.len(),
10325 input_text
10326 .chars()
10327 .filter(|initial_char| initial_char.is_whitespace())
10328 .count(),
10329 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
10330 );
10331
10332 for show_line_numbers in [true, false] {
10333 init_test(cx, |s| {
10334 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10335 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
10336 });
10337
10338 let actual_invisibles = collect_invisibles_from_new_editor(
10339 cx,
10340 EditorMode::full(),
10341 input_text,
10342 px(500.0),
10343 show_line_numbers,
10344 );
10345
10346 assert_eq!(expected_invisibles, actual_invisibles);
10347 }
10348 }
10349
10350 #[gpui::test]
10351 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
10352 init_test(cx, |s| {
10353 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10354 s.defaults.tab_size = NonZeroU32::new(4);
10355 });
10356
10357 for editor_mode_without_invisibles in [
10358 EditorMode::SingleLine { auto_width: false },
10359 EditorMode::AutoHeight {
10360 min_lines: 1,
10361 max_lines: Some(100),
10362 },
10363 ] {
10364 for show_line_numbers in [true, false] {
10365 let invisibles = collect_invisibles_from_new_editor(
10366 cx,
10367 editor_mode_without_invisibles.clone(),
10368 "\t\t\t| | a b",
10369 px(500.0),
10370 show_line_numbers,
10371 );
10372 assert!(
10373 invisibles.is_empty(),
10374 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
10375 );
10376 }
10377 }
10378 }
10379
10380 #[gpui::test]
10381 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
10382 let tab_size = 4;
10383 let input_text = "a\tbcd ".repeat(9);
10384 let repeated_invisibles = [
10385 Invisible::Tab {
10386 line_start_offset: 1,
10387 line_end_offset: tab_size as usize,
10388 },
10389 Invisible::Whitespace {
10390 line_offset: tab_size as usize + 3,
10391 },
10392 Invisible::Whitespace {
10393 line_offset: tab_size as usize + 4,
10394 },
10395 Invisible::Whitespace {
10396 line_offset: tab_size as usize + 5,
10397 },
10398 Invisible::Whitespace {
10399 line_offset: tab_size as usize + 6,
10400 },
10401 Invisible::Whitespace {
10402 line_offset: tab_size as usize + 7,
10403 },
10404 ];
10405 let expected_invisibles = std::iter::once(repeated_invisibles)
10406 .cycle()
10407 .take(9)
10408 .flatten()
10409 .collect::<Vec<_>>();
10410 assert_eq!(
10411 expected_invisibles.len(),
10412 input_text
10413 .chars()
10414 .filter(|initial_char| initial_char.is_whitespace())
10415 .count(),
10416 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
10417 );
10418 info!("Expected invisibles: {expected_invisibles:?}");
10419
10420 init_test(cx, |_| {});
10421
10422 // Put the same string with repeating whitespace pattern into editors of various size,
10423 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
10424 let resize_step = 10.0;
10425 let mut editor_width = 200.0;
10426 while editor_width <= 1000.0 {
10427 for show_line_numbers in [true, false] {
10428 update_test_language_settings(cx, |s| {
10429 s.defaults.tab_size = NonZeroU32::new(tab_size);
10430 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10431 s.defaults.preferred_line_length = Some(editor_width as u32);
10432 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
10433 });
10434
10435 let actual_invisibles = collect_invisibles_from_new_editor(
10436 cx,
10437 EditorMode::full(),
10438 &input_text,
10439 px(editor_width),
10440 show_line_numbers,
10441 );
10442
10443 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
10444 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
10445 let mut i = 0;
10446 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
10447 i = actual_index;
10448 match expected_invisibles.get(i) {
10449 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
10450 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
10451 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
10452 _ => {
10453 panic!(
10454 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
10455 )
10456 }
10457 },
10458 None => {
10459 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
10460 }
10461 }
10462 }
10463 let missing_expected_invisibles = &expected_invisibles[i + 1..];
10464 assert!(
10465 missing_expected_invisibles.is_empty(),
10466 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
10467 );
10468
10469 editor_width += resize_step;
10470 }
10471 }
10472 }
10473
10474 fn collect_invisibles_from_new_editor(
10475 cx: &mut TestAppContext,
10476 editor_mode: EditorMode,
10477 input_text: &str,
10478 editor_width: Pixels,
10479 show_line_numbers: bool,
10480 ) -> Vec<Invisible> {
10481 info!(
10482 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
10483 editor_width.0
10484 );
10485 let window = cx.add_window(|window, cx| {
10486 let buffer = MultiBuffer::build_simple(input_text, cx);
10487 Editor::new(editor_mode, buffer, None, window, cx)
10488 });
10489 let cx = &mut VisualTestContext::from_window(*window, cx);
10490 let editor = window.root(cx).unwrap();
10491
10492 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10493 window
10494 .update(cx, |editor, _, cx| {
10495 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
10496 editor.set_wrap_width(Some(editor_width), cx);
10497 editor.set_show_line_numbers(show_line_numbers, cx);
10498 })
10499 .unwrap();
10500 let (_, state) = cx.draw(
10501 point(px(500.), px(500.)),
10502 size(px(500.), px(500.)),
10503 |_, _| EditorElement::new(&editor, style),
10504 );
10505 state
10506 .position_map
10507 .line_layouts
10508 .iter()
10509 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
10510 .cloned()
10511 .collect()
10512 }
10513}