1use crate::{
2 ActiveDiagnostic, BlockId, CURSORS_VISIBLE_FOR, ChunkRendererContext, ChunkReplacement,
3 CodeActionSource, ConflictsOurs, ConflictsOursMarker, ConflictsOuter, ConflictsTheirs,
4 ConflictsTheirsMarker, ContextMenuPlacement, CursorShape, CustomBlockId, DisplayDiffHunk,
5 DisplayPoint, DisplayRow, DocumentHighlightRead, DocumentHighlightWrite, EditDisplayMode,
6 Editor, EditorMode, EditorSettings, EditorSnapshot, EditorStyle, FILE_HEADER_HEIGHT,
7 FocusedBlock, GutterDimensions, HalfPageDown, HalfPageUp, HandleInput, HoveredCursor,
8 InlayHintRefreshReason, InlineCompletion, JumpData, LineDown, LineHighlight, LineUp,
9 MAX_LINE_LEN, MINIMAP_FONT_SIZE, MULTI_BUFFER_EXCERPT_HEADER_HEIGHT, OpenExcerpts, PageDown,
10 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, DisplaySnapshot, EditorMargins, FoldId, HighlightKey,
16 HighlightedChunk, ToDisplayPoint,
17 },
18 editor_settings::{
19 CurrentLineHighlight, DoubleClickInMultibuffer, MinimapThumb, MinimapThumbBorder,
20 ScrollBeyondLastLine, ScrollbarAxes, ScrollbarDiagnostics, ShowMinimap, ShowScrollbar,
21 },
22 git::blame::{BlameRenderer, GitBlame, GlobalBlameRenderer},
23 hover_popover::{
24 self, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
25 POPOVER_RIGHT_OFFSET, hover_at,
26 },
27 inlay_hint_settings,
28 items::BufferSearchHighlights,
29 mouse_context_menu::{self, MenuPosition},
30 scroll::{ActiveScrollbarState, ScrollbarThumbState, scroll_amount::ScrollAmount},
31};
32use buffer_diff::{DiffHunkStatus, DiffHunkStatusKind};
33use collections::{BTreeMap, HashMap};
34use file_icons::FileIcons;
35use git::{
36 Oid,
37 blame::{BlameEntry, ParsedCommitMessage},
38 status::FileStatus,
39};
40use gpui::{
41 Action, Along, AnyElement, App, AppContext, AvailableSpace, Axis as ScrollbarAxis, BorderStyle,
42 Bounds, ClickEvent, ContentMask, Context, Corner, Corners, CursorStyle, DispatchPhase, Edges,
43 Element, ElementInputHandler, Entity, Focusable as _, FontId, GlobalElementId, Hitbox,
44 HitboxBehavior, Hsla, InteractiveElement, IntoElement, IsZero, Keystroke, Length,
45 ModifiersChangedEvent, MouseButton, MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad,
46 ParentElement, Pixels, ScrollDelta, ScrollHandle, ScrollWheelEvent, ShapedLine, SharedString,
47 Size, StatefulInteractiveElement, Style, Styled, TextRun, TextStyleRefinement, WeakEntity,
48 Window, anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline, point, px,
49 quad, relative, size, solid_background, transparent_black,
50};
51use itertools::Itertools;
52use language::language_settings::{
53 IndentGuideBackgroundColoring, IndentGuideColoring, IndentGuideSettings, ShowWhitespaceSetting,
54};
55use markdown::Markdown;
56use multi_buffer::{
57 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, ExpandInfo, MultiBufferPoint,
58 MultiBufferRow, RowInfo,
59};
60
61use project::{
62 ProjectPath,
63 debugger::breakpoint_store::{Breakpoint, BreakpointSessionState},
64 project_settings::{GitGutterSetting, GitHunkStyleSetting, ProjectSettings},
65};
66use settings::Settings;
67use smallvec::{SmallVec, smallvec};
68use std::{
69 any::TypeId,
70 borrow::Cow,
71 cmp::{self, Ordering},
72 fmt::{self, Write},
73 iter, mem,
74 ops::{Deref, Range},
75 rc::Rc,
76 sync::Arc,
77 time::Duration,
78};
79use sum_tree::Bias;
80use text::{BufferId, SelectionGoal};
81use theme::{ActiveTheme, Appearance, BufferLineHeight, PlayerColor};
82use ui::{ButtonLike, KeyBinding, POPOVER_Y_PADDING, Tooltip, h_flex, prelude::*};
83use unicode_segmentation::UnicodeSegmentation;
84use util::post_inc;
85use util::{RangeExt, ResultExt, debug_panic};
86use workspace::{CollaboratorId, Workspace, item::Item, notifications::NotifyTaskExt};
87
88const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 7.;
89
90/// Determines what kinds of highlights should be applied to a lines background.
91#[derive(Clone, Copy, Default)]
92struct LineHighlightSpec {
93 selection: bool,
94 breakpoint: bool,
95 _active_stack_frame: bool,
96}
97
98#[derive(Debug)]
99struct SelectionLayout {
100 head: DisplayPoint,
101 cursor_shape: CursorShape,
102 is_newest: bool,
103 is_local: bool,
104 range: Range<DisplayPoint>,
105 active_rows: Range<DisplayRow>,
106 user_name: Option<SharedString>,
107}
108
109impl SelectionLayout {
110 fn new<T: ToPoint + ToDisplayPoint + Clone>(
111 selection: Selection<T>,
112 line_mode: bool,
113 cursor_shape: CursorShape,
114 map: &DisplaySnapshot,
115 is_newest: bool,
116 is_local: bool,
117 user_name: Option<SharedString>,
118 ) -> Self {
119 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
120 let display_selection = point_selection.map(|p| p.to_display_point(map));
121 let mut range = display_selection.range();
122 let mut head = display_selection.head();
123 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
124 ..map.next_line_boundary(point_selection.end).1.row();
125
126 // vim visual line mode
127 if line_mode {
128 let point_range = map.expand_to_line(point_selection.range());
129 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
130 }
131
132 // any vim visual mode (including line mode)
133 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
134 && !range.is_empty()
135 && !selection.reversed
136 {
137 if head.column() > 0 {
138 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
139 } else if head.row().0 > 0 && head != map.max_point() {
140 head = map.clip_point(
141 DisplayPoint::new(
142 head.row().previous_row(),
143 map.line_len(head.row().previous_row()),
144 ),
145 Bias::Left,
146 );
147 // updating range.end is a no-op unless you're cursor is
148 // on the newline containing a multi-buffer divider
149 // in which case the clip_point may have moved the head up
150 // an additional row.
151 range.end = DisplayPoint::new(head.row().next_row(), 0);
152 active_rows.end = head.row();
153 }
154 }
155
156 Self {
157 head,
158 cursor_shape,
159 is_newest,
160 is_local,
161 range,
162 active_rows,
163 user_name,
164 }
165 }
166}
167
168pub struct EditorElement {
169 editor: Entity<Editor>,
170 style: EditorStyle,
171}
172
173type DisplayRowDelta = u32;
174
175impl EditorElement {
176 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
177
178 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
179 Self {
180 editor: editor.clone(),
181 style,
182 }
183 }
184
185 fn register_actions(&self, window: &mut Window, cx: &mut App) {
186 let editor = &self.editor;
187 editor.update(cx, |editor, cx| {
188 for action in editor.editor_actions.borrow().values() {
189 (action)(editor, window, cx)
190 }
191 });
192
193 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
194 crate::clangd_ext::apply_related_actions(editor, window, cx);
195
196 register_action(editor, window, Editor::open_context_menu);
197 register_action(editor, window, Editor::move_left);
198 register_action(editor, window, Editor::move_right);
199 register_action(editor, window, Editor::move_down);
200 register_action(editor, window, Editor::move_down_by_lines);
201 register_action(editor, window, Editor::select_down_by_lines);
202 register_action(editor, window, Editor::move_up);
203 register_action(editor, window, Editor::move_up_by_lines);
204 register_action(editor, window, Editor::select_up_by_lines);
205 register_action(editor, window, Editor::select_page_down);
206 register_action(editor, window, Editor::select_page_up);
207 register_action(editor, window, Editor::cancel);
208 register_action(editor, window, Editor::newline);
209 register_action(editor, window, Editor::newline_above);
210 register_action(editor, window, Editor::newline_below);
211 register_action(editor, window, Editor::backspace);
212 register_action(editor, window, Editor::delete);
213 register_action(editor, window, Editor::tab);
214 register_action(editor, window, Editor::backtab);
215 register_action(editor, window, Editor::indent);
216 register_action(editor, window, Editor::outdent);
217 register_action(editor, window, Editor::autoindent);
218 register_action(editor, window, Editor::delete_line);
219 register_action(editor, window, Editor::join_lines);
220 register_action(editor, window, Editor::sort_lines_case_sensitive);
221 register_action(editor, window, Editor::sort_lines_case_insensitive);
222 register_action(editor, window, Editor::reverse_lines);
223 register_action(editor, window, Editor::shuffle_lines);
224 register_action(editor, window, Editor::toggle_case);
225 register_action(editor, window, Editor::convert_to_upper_case);
226 register_action(editor, window, Editor::convert_to_lower_case);
227 register_action(editor, window, Editor::convert_to_title_case);
228 register_action(editor, window, Editor::convert_to_snake_case);
229 register_action(editor, window, Editor::convert_to_kebab_case);
230 register_action(editor, window, Editor::convert_to_upper_camel_case);
231 register_action(editor, window, Editor::convert_to_lower_camel_case);
232 register_action(editor, window, Editor::convert_to_opposite_case);
233 register_action(editor, window, Editor::convert_to_rot13);
234 register_action(editor, window, Editor::convert_to_rot47);
235 register_action(editor, window, Editor::delete_to_previous_word_start);
236 register_action(editor, window, Editor::delete_to_previous_subword_start);
237 register_action(editor, window, Editor::delete_to_next_word_end);
238 register_action(editor, window, Editor::delete_to_next_subword_end);
239 register_action(editor, window, Editor::delete_to_beginning_of_line);
240 register_action(editor, window, Editor::delete_to_end_of_line);
241 register_action(editor, window, Editor::cut_to_end_of_line);
242 register_action(editor, window, Editor::duplicate_line_up);
243 register_action(editor, window, Editor::duplicate_line_down);
244 register_action(editor, window, Editor::duplicate_selection);
245 register_action(editor, window, Editor::move_line_up);
246 register_action(editor, window, Editor::move_line_down);
247 register_action(editor, window, Editor::transpose);
248 register_action(editor, window, Editor::rewrap);
249 register_action(editor, window, Editor::cut);
250 register_action(editor, window, Editor::kill_ring_cut);
251 register_action(editor, window, Editor::kill_ring_yank);
252 register_action(editor, window, Editor::copy);
253 register_action(editor, window, Editor::copy_and_trim);
254 register_action(editor, window, Editor::paste);
255 register_action(editor, window, Editor::undo);
256 register_action(editor, window, Editor::redo);
257 register_action(editor, window, Editor::move_page_up);
258 register_action(editor, window, Editor::move_page_down);
259 register_action(editor, window, Editor::next_screen);
260 register_action(editor, window, Editor::scroll_cursor_top);
261 register_action(editor, window, Editor::scroll_cursor_center);
262 register_action(editor, window, Editor::scroll_cursor_bottom);
263 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
264 register_action(editor, window, |editor, _: &LineDown, window, cx| {
265 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
266 });
267 register_action(editor, window, |editor, _: &LineUp, window, cx| {
268 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
269 });
270 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
271 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
272 });
273 register_action(
274 editor,
275 window,
276 |editor, HandleInput(text): &HandleInput, window, cx| {
277 if text.is_empty() {
278 return;
279 }
280 editor.handle_input(text, window, cx);
281 },
282 );
283 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
284 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
285 });
286 register_action(editor, window, |editor, _: &PageDown, window, cx| {
287 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
288 });
289 register_action(editor, window, |editor, _: &PageUp, window, cx| {
290 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
291 });
292 register_action(editor, window, Editor::move_to_previous_word_start);
293 register_action(editor, window, Editor::move_to_previous_subword_start);
294 register_action(editor, window, Editor::move_to_next_word_end);
295 register_action(editor, window, Editor::move_to_next_subword_end);
296 register_action(editor, window, Editor::move_to_beginning_of_line);
297 register_action(editor, window, Editor::move_to_end_of_line);
298 register_action(editor, window, Editor::move_to_start_of_paragraph);
299 register_action(editor, window, Editor::move_to_end_of_paragraph);
300 register_action(editor, window, Editor::move_to_beginning);
301 register_action(editor, window, Editor::move_to_end);
302 register_action(editor, window, Editor::move_to_start_of_excerpt);
303 register_action(editor, window, Editor::move_to_start_of_next_excerpt);
304 register_action(editor, window, Editor::move_to_end_of_excerpt);
305 register_action(editor, window, Editor::move_to_end_of_previous_excerpt);
306 register_action(editor, window, Editor::select_up);
307 register_action(editor, window, Editor::select_down);
308 register_action(editor, window, Editor::select_left);
309 register_action(editor, window, Editor::select_right);
310 register_action(editor, window, Editor::select_to_previous_word_start);
311 register_action(editor, window, Editor::select_to_previous_subword_start);
312 register_action(editor, window, Editor::select_to_next_word_end);
313 register_action(editor, window, Editor::select_to_next_subword_end);
314 register_action(editor, window, Editor::select_to_beginning_of_line);
315 register_action(editor, window, Editor::select_to_end_of_line);
316 register_action(editor, window, Editor::select_to_start_of_paragraph);
317 register_action(editor, window, Editor::select_to_end_of_paragraph);
318 register_action(editor, window, Editor::select_to_start_of_excerpt);
319 register_action(editor, window, Editor::select_to_start_of_next_excerpt);
320 register_action(editor, window, Editor::select_to_end_of_excerpt);
321 register_action(editor, window, Editor::select_to_end_of_previous_excerpt);
322 register_action(editor, window, Editor::select_to_beginning);
323 register_action(editor, window, Editor::select_to_end);
324 register_action(editor, window, Editor::select_all);
325 register_action(editor, window, |editor, action, window, cx| {
326 editor.select_all_matches(action, window, cx).log_err();
327 });
328 register_action(editor, window, Editor::select_line);
329 register_action(editor, window, Editor::split_selection_into_lines);
330 register_action(editor, window, Editor::add_selection_above);
331 register_action(editor, window, Editor::add_selection_below);
332 register_action(editor, window, |editor, action, window, cx| {
333 editor.select_next(action, window, cx).log_err();
334 });
335 register_action(editor, window, |editor, action, window, cx| {
336 editor.select_previous(action, window, cx).log_err();
337 });
338 register_action(editor, window, |editor, action, window, cx| {
339 editor.find_next_match(action, window, cx).log_err();
340 });
341 register_action(editor, window, |editor, action, window, cx| {
342 editor.find_previous_match(action, window, cx).log_err();
343 });
344 register_action(editor, window, Editor::toggle_comments);
345 register_action(editor, window, Editor::select_larger_syntax_node);
346 register_action(editor, window, Editor::select_smaller_syntax_node);
347 register_action(editor, window, Editor::select_enclosing_symbol);
348 register_action(editor, window, Editor::move_to_enclosing_bracket);
349 register_action(editor, window, Editor::undo_selection);
350 register_action(editor, window, Editor::redo_selection);
351 if !editor.read(cx).is_singleton(cx) {
352 register_action(editor, window, Editor::expand_excerpts);
353 register_action(editor, window, Editor::expand_excerpts_up);
354 register_action(editor, window, Editor::expand_excerpts_down);
355 }
356 register_action(editor, window, Editor::go_to_diagnostic);
357 register_action(editor, window, Editor::go_to_prev_diagnostic);
358 register_action(editor, window, Editor::go_to_next_hunk);
359 register_action(editor, window, Editor::go_to_prev_hunk);
360 register_action(editor, window, |editor, action, window, cx| {
361 editor
362 .go_to_definition(action, window, cx)
363 .detach_and_log_err(cx);
364 });
365 register_action(editor, window, |editor, action, window, cx| {
366 editor
367 .go_to_definition_split(action, window, cx)
368 .detach_and_log_err(cx);
369 });
370 register_action(editor, window, |editor, action, window, cx| {
371 editor
372 .go_to_declaration(action, window, cx)
373 .detach_and_log_err(cx);
374 });
375 register_action(editor, window, |editor, action, window, cx| {
376 editor
377 .go_to_declaration_split(action, window, cx)
378 .detach_and_log_err(cx);
379 });
380 register_action(editor, window, |editor, action, window, cx| {
381 editor
382 .go_to_implementation(action, window, cx)
383 .detach_and_log_err(cx);
384 });
385 register_action(editor, window, |editor, action, window, cx| {
386 editor
387 .go_to_implementation_split(action, window, cx)
388 .detach_and_log_err(cx);
389 });
390 register_action(editor, window, |editor, action, window, cx| {
391 editor
392 .go_to_type_definition(action, window, cx)
393 .detach_and_log_err(cx);
394 });
395 register_action(editor, window, |editor, action, window, cx| {
396 editor
397 .go_to_type_definition_split(action, window, cx)
398 .detach_and_log_err(cx);
399 });
400 register_action(editor, window, Editor::open_url);
401 register_action(editor, window, Editor::open_selected_filename);
402 register_action(editor, window, Editor::fold);
403 register_action(editor, window, Editor::fold_at_level);
404 register_action(editor, window, Editor::fold_all);
405 register_action(editor, window, Editor::fold_function_bodies);
406 register_action(editor, window, Editor::fold_recursive);
407 register_action(editor, window, Editor::toggle_fold);
408 register_action(editor, window, Editor::toggle_fold_recursive);
409 register_action(editor, window, Editor::unfold_lines);
410 register_action(editor, window, Editor::unfold_recursive);
411 register_action(editor, window, Editor::unfold_all);
412 register_action(editor, window, Editor::fold_selected_ranges);
413 register_action(editor, window, Editor::set_mark);
414 register_action(editor, window, Editor::swap_selection_ends);
415 register_action(editor, window, Editor::show_completions);
416 register_action(editor, window, Editor::show_word_completions);
417 register_action(editor, window, Editor::toggle_code_actions);
418 register_action(editor, window, Editor::open_excerpts);
419 register_action(editor, window, Editor::open_excerpts_in_split);
420 register_action(editor, window, Editor::open_proposed_changes_editor);
421 register_action(editor, window, Editor::toggle_soft_wrap);
422 register_action(editor, window, Editor::toggle_tab_bar);
423 register_action(editor, window, Editor::toggle_line_numbers);
424 register_action(editor, window, Editor::toggle_relative_line_numbers);
425 register_action(editor, window, Editor::toggle_indent_guides);
426 register_action(editor, window, Editor::toggle_inlay_hints);
427 register_action(editor, window, Editor::toggle_edit_predictions);
428 if editor.read(cx).diagnostics_enabled() {
429 register_action(editor, window, Editor::toggle_diagnostics);
430 }
431 if editor.read(cx).inline_diagnostics_enabled() {
432 register_action(editor, window, Editor::toggle_inline_diagnostics);
433 }
434 if editor.read(cx).supports_minimap(cx) {
435 register_action(editor, window, Editor::toggle_minimap);
436 }
437 register_action(editor, window, hover_popover::hover);
438 register_action(editor, window, Editor::reveal_in_finder);
439 register_action(editor, window, Editor::copy_path);
440 register_action(editor, window, Editor::copy_relative_path);
441 register_action(editor, window, Editor::copy_file_name);
442 register_action(editor, window, Editor::copy_file_name_without_extension);
443 register_action(editor, window, Editor::copy_highlight_json);
444 register_action(editor, window, Editor::copy_permalink_to_line);
445 register_action(editor, window, Editor::open_permalink_to_line);
446 register_action(editor, window, Editor::copy_file_location);
447 register_action(editor, window, Editor::toggle_git_blame);
448 register_action(editor, window, Editor::toggle_git_blame_inline);
449 register_action(editor, window, Editor::open_git_blame_commit);
450 register_action(editor, window, Editor::toggle_selected_diff_hunks);
451 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
452 register_action(editor, window, Editor::stage_and_next);
453 register_action(editor, window, Editor::unstage_and_next);
454 register_action(editor, window, Editor::expand_all_diff_hunks);
455 register_action(editor, window, Editor::go_to_previous_change);
456 register_action(editor, window, Editor::go_to_next_change);
457
458 register_action(editor, window, |editor, action, window, cx| {
459 if let Some(task) = editor.format(action, window, cx) {
460 task.detach_and_notify_err(window, cx);
461 } else {
462 cx.propagate();
463 }
464 });
465 register_action(editor, window, |editor, action, window, cx| {
466 if let Some(task) = editor.format_selections(action, window, cx) {
467 task.detach_and_notify_err(window, cx);
468 } else {
469 cx.propagate();
470 }
471 });
472 register_action(editor, window, |editor, action, window, cx| {
473 if let Some(task) = editor.organize_imports(action, window, cx) {
474 task.detach_and_notify_err(window, cx);
475 } else {
476 cx.propagate();
477 }
478 });
479 register_action(editor, window, Editor::restart_language_server);
480 register_action(editor, window, Editor::stop_language_server);
481 register_action(editor, window, Editor::show_character_palette);
482 register_action(editor, window, |editor, action, window, cx| {
483 if let Some(task) = editor.confirm_completion(action, window, cx) {
484 task.detach_and_notify_err(window, cx);
485 } else {
486 cx.propagate();
487 }
488 });
489 register_action(editor, window, |editor, action, window, cx| {
490 if let Some(task) = editor.confirm_completion_replace(action, window, cx) {
491 task.detach_and_notify_err(window, cx);
492 } else {
493 cx.propagate();
494 }
495 });
496 register_action(editor, window, |editor, action, window, cx| {
497 if let Some(task) = editor.confirm_completion_insert(action, window, cx) {
498 task.detach_and_notify_err(window, cx);
499 } else {
500 cx.propagate();
501 }
502 });
503 register_action(editor, window, |editor, action, window, cx| {
504 if let Some(task) = editor.compose_completion(action, window, cx) {
505 task.detach_and_notify_err(window, cx);
506 } else {
507 cx.propagate();
508 }
509 });
510 register_action(editor, window, |editor, action, window, cx| {
511 if let Some(task) = editor.confirm_code_action(action, window, cx) {
512 task.detach_and_notify_err(window, cx);
513 } else {
514 cx.propagate();
515 }
516 });
517 register_action(editor, window, |editor, action, window, cx| {
518 if let Some(task) = editor.rename(action, window, cx) {
519 task.detach_and_notify_err(window, cx);
520 } else {
521 cx.propagate();
522 }
523 });
524 register_action(editor, window, |editor, action, window, cx| {
525 if let Some(task) = editor.confirm_rename(action, window, cx) {
526 task.detach_and_notify_err(window, cx);
527 } else {
528 cx.propagate();
529 }
530 });
531 register_action(editor, window, |editor, action, window, cx| {
532 if let Some(task) = editor.find_all_references(action, window, cx) {
533 task.detach_and_log_err(cx);
534 } else {
535 cx.propagate();
536 }
537 });
538 register_action(editor, window, Editor::show_signature_help);
539 register_action(editor, window, Editor::next_edit_prediction);
540 register_action(editor, window, Editor::previous_edit_prediction);
541 register_action(editor, window, Editor::show_inline_completion);
542 register_action(editor, window, Editor::context_menu_first);
543 register_action(editor, window, Editor::context_menu_prev);
544 register_action(editor, window, Editor::context_menu_next);
545 register_action(editor, window, Editor::context_menu_last);
546 register_action(editor, window, Editor::display_cursor_names);
547 register_action(editor, window, Editor::unique_lines_case_insensitive);
548 register_action(editor, window, Editor::unique_lines_case_sensitive);
549 register_action(editor, window, Editor::accept_partial_inline_completion);
550 register_action(editor, window, Editor::accept_edit_prediction);
551 register_action(editor, window, Editor::restore_file);
552 register_action(editor, window, Editor::git_restore);
553 register_action(editor, window, Editor::apply_all_diff_hunks);
554 register_action(editor, window, Editor::apply_selected_diff_hunks);
555 register_action(editor, window, Editor::open_active_item_in_terminal);
556 register_action(editor, window, Editor::reload_file);
557 register_action(editor, window, Editor::spawn_nearest_task);
558 register_action(editor, window, Editor::insert_uuid_v4);
559 register_action(editor, window, Editor::insert_uuid_v7);
560 register_action(editor, window, Editor::open_selections_in_multibuffer);
561 register_action(editor, window, Editor::toggle_breakpoint);
562 register_action(editor, window, Editor::edit_log_breakpoint);
563 register_action(editor, window, Editor::enable_breakpoint);
564 register_action(editor, window, Editor::disable_breakpoint);
565 }
566
567 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
568 let position_map = layout.position_map.clone();
569 window.on_key_event({
570 let editor = self.editor.clone();
571 move |event: &ModifiersChangedEvent, phase, window, cx| {
572 if phase != DispatchPhase::Bubble {
573 return;
574 }
575 editor.update(cx, |editor, cx| {
576 let inlay_hint_settings = inlay_hint_settings(
577 editor.selections.newest_anchor().head(),
578 &editor.buffer.read(cx).snapshot(cx),
579 cx,
580 );
581
582 if let Some(inlay_modifiers) = inlay_hint_settings
583 .toggle_on_modifiers_press
584 .as_ref()
585 .filter(|modifiers| modifiers.modified())
586 {
587 editor.refresh_inlay_hints(
588 InlayHintRefreshReason::ModifiersChanged(
589 inlay_modifiers == &event.modifiers,
590 ),
591 cx,
592 );
593 }
594
595 if editor.hover_state.focused(window, cx) {
596 return;
597 }
598
599 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
600 })
601 }
602 });
603 }
604
605 fn mouse_left_down(
606 editor: &mut Editor,
607 event: &MouseDownEvent,
608 hovered_hunk: Option<Range<Anchor>>,
609 position_map: &PositionMap,
610 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
611 window: &mut Window,
612 cx: &mut Context<Editor>,
613 ) {
614 if window.default_prevented() {
615 return;
616 }
617
618 let text_hitbox = &position_map.text_hitbox;
619 let gutter_hitbox = &position_map.gutter_hitbox;
620 let point_for_position = position_map.point_for_position(event.position);
621 let mut click_count = event.click_count;
622 let mut modifiers = event.modifiers;
623
624 if let Some(hovered_hunk) = hovered_hunk {
625 editor.toggle_single_diff_hunk(hovered_hunk, cx);
626 cx.notify();
627 return;
628 } else if gutter_hitbox.is_hovered(window) {
629 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
630 } else if !text_hitbox.is_hovered(window) {
631 return;
632 }
633
634 if editor.drag_and_drop_selection_enabled && click_count == 1 {
635 let newest_anchor = editor.selections.newest_anchor();
636 let snapshot = editor.snapshot(window, cx);
637 let selection = newest_anchor.map(|anchor| anchor.to_display_point(&snapshot));
638 if point_for_position.intersects_selection(&selection) {
639 editor.selection_drag_state = SelectionDragState::ReadyToDrag {
640 selection: newest_anchor.clone(),
641 click_position: event.position,
642 };
643 cx.stop_propagation();
644 return;
645 }
646 }
647
648 let is_singleton = editor.buffer().read(cx).is_singleton();
649
650 if click_count == 2 && !is_singleton {
651 match EditorSettings::get_global(cx).double_click_in_multibuffer {
652 DoubleClickInMultibuffer::Select => {
653 // do nothing special on double click, all selection logic is below
654 }
655 DoubleClickInMultibuffer::Open => {
656 if modifiers.alt {
657 // if double click is made with alt, pretend it's a regular double click without opening and alt,
658 // and run the selection logic.
659 modifiers.alt = false;
660 } else {
661 let scroll_position_row =
662 position_map.scroll_pixel_position.y / position_map.line_height;
663 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
664 + position_map.scroll_pixel_position.y)
665 / position_map.line_height)
666 as u32;
667 let multi_buffer_row = position_map
668 .snapshot
669 .display_point_to_point(
670 DisplayPoint::new(DisplayRow(display_row), 0),
671 Bias::Right,
672 )
673 .row;
674 let line_offset_from_top = display_row - scroll_position_row as u32;
675 // if double click is made without alt, open the corresponding excerp
676 editor.open_excerpts_common(
677 Some(JumpData::MultiBufferRow {
678 row: MultiBufferRow(multi_buffer_row),
679 line_offset_from_top,
680 }),
681 false,
682 window,
683 cx,
684 );
685 return;
686 }
687 }
688 }
689 }
690
691 let position = point_for_position.previous_valid;
692 let multi_cursor_modifier = Editor::multi_cursor_modifier(true, &modifiers, cx);
693 if Editor::columnar_selection_modifiers(multi_cursor_modifier, &modifiers) {
694 editor.select(
695 SelectPhase::BeginColumnar {
696 position,
697 reset: true,
698 goal_column: point_for_position.exact_unclipped.column(),
699 },
700 window,
701 cx,
702 );
703 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
704 {
705 editor.select(
706 SelectPhase::Extend {
707 position,
708 click_count,
709 },
710 window,
711 cx,
712 );
713 } else {
714 editor.select(
715 SelectPhase::Begin {
716 position,
717 add: multi_cursor_modifier,
718 click_count,
719 },
720 window,
721 cx,
722 );
723 }
724 cx.stop_propagation();
725
726 if !is_singleton {
727 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
728 + position_map.scroll_pixel_position.y)
729 / position_map.line_height) as u32;
730 let multi_buffer_row = position_map
731 .snapshot
732 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
733 .row;
734 if line_numbers
735 .get(&MultiBufferRow(multi_buffer_row))
736 .and_then(|line_number| line_number.hitbox.as_ref())
737 .is_some_and(|hitbox| hitbox.contains(&event.position))
738 {
739 let scroll_position_row =
740 position_map.scroll_pixel_position.y / position_map.line_height;
741 let line_offset_from_top = display_row - scroll_position_row as u32;
742
743 editor.open_excerpts_common(
744 Some(JumpData::MultiBufferRow {
745 row: MultiBufferRow(multi_buffer_row),
746 line_offset_from_top,
747 }),
748 modifiers.alt,
749 window,
750 cx,
751 );
752 cx.stop_propagation();
753 }
754 }
755 }
756
757 fn mouse_right_down(
758 editor: &mut Editor,
759 event: &MouseDownEvent,
760 position_map: &PositionMap,
761 window: &mut Window,
762 cx: &mut Context<Editor>,
763 ) {
764 if position_map.gutter_hitbox.is_hovered(window) {
765 let gutter_right_padding = editor.gutter_dimensions.right_padding;
766 let hitbox = &position_map.gutter_hitbox;
767
768 if event.position.x <= hitbox.bounds.right() - gutter_right_padding {
769 let point_for_position = position_map.point_for_position(event.position);
770 editor.set_breakpoint_context_menu(
771 point_for_position.previous_valid.row(),
772 None,
773 event.position,
774 window,
775 cx,
776 );
777 }
778 return;
779 }
780
781 if !position_map.text_hitbox.is_hovered(window) {
782 return;
783 }
784
785 let point_for_position = position_map.point_for_position(event.position);
786 mouse_context_menu::deploy_context_menu(
787 editor,
788 Some(event.position),
789 point_for_position.previous_valid,
790 window,
791 cx,
792 );
793 cx.stop_propagation();
794 }
795
796 fn mouse_middle_down(
797 editor: &mut Editor,
798 event: &MouseDownEvent,
799 position_map: &PositionMap,
800 window: &mut Window,
801 cx: &mut Context<Editor>,
802 ) {
803 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
804 return;
805 }
806
807 let point_for_position = position_map.point_for_position(event.position);
808 let position = point_for_position.previous_valid;
809
810 editor.select(
811 SelectPhase::BeginColumnar {
812 position,
813 reset: true,
814 goal_column: point_for_position.exact_unclipped.column(),
815 },
816 window,
817 cx,
818 );
819 }
820
821 fn mouse_up(
822 editor: &mut Editor,
823 event: &MouseUpEvent,
824 position_map: &PositionMap,
825 window: &mut Window,
826 cx: &mut Context<Editor>,
827 ) {
828 let text_hitbox = &position_map.text_hitbox;
829 let end_selection = editor.has_pending_selection();
830 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
831 let point_for_position = position_map.point_for_position(event.position);
832
833 match editor.selection_drag_state {
834 SelectionDragState::ReadyToDrag {
835 selection: _,
836 ref click_position,
837 } => {
838 if event.position == *click_position {
839 editor.select(
840 SelectPhase::Begin {
841 position: point_for_position.previous_valid,
842 add: false,
843 click_count: 1, // ready to drag state only occurs on click count 1
844 },
845 window,
846 cx,
847 );
848 editor.selection_drag_state = SelectionDragState::None;
849 cx.stop_propagation();
850 return;
851 }
852 }
853 SelectionDragState::Dragging { ref selection, .. } => {
854 let snapshot = editor.snapshot(window, cx);
855 let selection_display = selection.map(|anchor| anchor.to_display_point(&snapshot));
856 if !point_for_position.intersects_selection(&selection_display)
857 && text_hitbox.is_hovered(window)
858 {
859 let is_cut = !(cfg!(target_os = "macos") && event.modifiers.alt
860 || cfg!(not(target_os = "macos")) && event.modifiers.control);
861 editor.move_selection_on_drop(
862 &selection.clone(),
863 point_for_position.previous_valid,
864 is_cut,
865 window,
866 cx,
867 );
868 }
869 editor.selection_drag_state = SelectionDragState::None;
870 cx.stop_propagation();
871 cx.notify();
872 return;
873 }
874 _ => {}
875 }
876
877 if end_selection {
878 editor.select(SelectPhase::End, window, cx);
879 }
880
881 if end_selection && pending_nonempty_selections {
882 cx.stop_propagation();
883 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
884 && event.button == MouseButton::Middle
885 {
886 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
887 return;
888 }
889
890 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
891 if EditorSettings::get_global(cx).middle_click_paste {
892 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
893 let point_for_position = position_map.point_for_position(event.position);
894 let position = point_for_position.previous_valid;
895
896 editor.select(
897 SelectPhase::Begin {
898 position,
899 add: false,
900 click_count: 1,
901 },
902 window,
903 cx,
904 );
905 editor.insert(&text, window, cx);
906 }
907 cx.stop_propagation()
908 }
909 }
910 }
911
912 fn click(
913 editor: &mut Editor,
914 event: &ClickEvent,
915 position_map: &PositionMap,
916 window: &mut Window,
917 cx: &mut Context<Editor>,
918 ) {
919 let text_hitbox = &position_map.text_hitbox;
920 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
921
922 let hovered_link_modifier = Editor::multi_cursor_modifier(false, &event.modifiers(), cx);
923
924 if !pending_nonempty_selections && hovered_link_modifier && text_hitbox.is_hovered(window) {
925 let point = position_map.point_for_position(event.up.position);
926 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
927
928 cx.stop_propagation();
929 }
930 }
931
932 fn mouse_dragged(
933 editor: &mut Editor,
934 event: &MouseMoveEvent,
935 position_map: &PositionMap,
936 window: &mut Window,
937 cx: &mut Context<Editor>,
938 ) {
939 if !editor.has_pending_selection()
940 && matches!(editor.selection_drag_state, SelectionDragState::None)
941 {
942 return;
943 }
944
945 let text_hitbox = &position_map.text_hitbox;
946 let text_bounds = text_hitbox.bounds;
947 let point_for_position = position_map.point_for_position(event.position);
948
949 let mut scroll_delta = gpui::Point::<f32>::default();
950 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
951 let top = text_bounds.origin.y + vertical_margin;
952 let bottom = text_bounds.bottom_left().y - vertical_margin;
953 if event.position.y < top {
954 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
955 }
956 if event.position.y > bottom {
957 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
958 }
959
960 // We need horizontal width of text
961 let style = editor.style.clone().unwrap_or_default();
962 let font_id = window.text_system().resolve_font(&style.text.font());
963 let font_size = style.text.font_size.to_pixels(window.rem_size());
964 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
965
966 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
967
968 let scroll_space: Pixels = scroll_margin_x * em_width;
969
970 let left = text_bounds.origin.x + scroll_space;
971 let right = text_bounds.top_right().x - scroll_space;
972
973 if event.position.x < left {
974 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
975 }
976 if event.position.x > right {
977 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
978 }
979
980 if !editor.has_pending_selection() {
981 let drop_anchor = position_map
982 .snapshot
983 .display_point_to_anchor(point_for_position.previous_valid, Bias::Left);
984 match editor.selection_drag_state {
985 SelectionDragState::Dragging {
986 ref mut drop_cursor,
987 ref mut hide_drop_cursor,
988 ..
989 } => {
990 drop_cursor.start = drop_anchor;
991 drop_cursor.end = drop_anchor;
992 *hide_drop_cursor = !text_hitbox.is_hovered(window);
993 }
994 SelectionDragState::ReadyToDrag { ref selection, .. } => {
995 let drop_cursor = Selection {
996 id: post_inc(&mut editor.selections.next_selection_id),
997 start: drop_anchor,
998 end: drop_anchor,
999 reversed: false,
1000 goal: SelectionGoal::None,
1001 };
1002 editor.selection_drag_state = SelectionDragState::Dragging {
1003 selection: selection.clone(),
1004 drop_cursor,
1005 hide_drop_cursor: false,
1006 };
1007 }
1008 _ => {}
1009 }
1010 editor.apply_scroll_delta(scroll_delta, window, cx);
1011 cx.notify();
1012 } else {
1013 editor.select(
1014 SelectPhase::Update {
1015 position: point_for_position.previous_valid,
1016 goal_column: point_for_position.exact_unclipped.column(),
1017 scroll_delta,
1018 },
1019 window,
1020 cx,
1021 );
1022 }
1023 }
1024
1025 fn mouse_moved(
1026 editor: &mut Editor,
1027 event: &MouseMoveEvent,
1028 position_map: &PositionMap,
1029 window: &mut Window,
1030 cx: &mut Context<Editor>,
1031 ) {
1032 let text_hitbox = &position_map.text_hitbox;
1033 let gutter_hitbox = &position_map.gutter_hitbox;
1034 let modifiers = event.modifiers;
1035 let gutter_hovered = gutter_hitbox.is_hovered(window);
1036 editor.set_gutter_hovered(gutter_hovered, cx);
1037 editor.mouse_cursor_hidden = false;
1038
1039 let breakpoint_indicator = if gutter_hovered {
1040 let new_point = position_map
1041 .point_for_position(event.position)
1042 .previous_valid;
1043 let buffer_anchor = position_map
1044 .snapshot
1045 .display_point_to_anchor(new_point, Bias::Left);
1046
1047 if let Some((buffer_snapshot, file)) = position_map
1048 .snapshot
1049 .buffer_snapshot
1050 .buffer_for_excerpt(buffer_anchor.excerpt_id)
1051 .and_then(|buffer| buffer.file().map(|file| (buffer, file)))
1052 {
1053 let as_point = text::ToPoint::to_point(&buffer_anchor.text_anchor, buffer_snapshot);
1054
1055 let is_visible = editor
1056 .gutter_breakpoint_indicator
1057 .0
1058 .map_or(false, |indicator| indicator.is_active);
1059
1060 let has_existing_breakpoint =
1061 editor.breakpoint_store.as_ref().map_or(false, |store| {
1062 let Some(project) = &editor.project else {
1063 return false;
1064 };
1065 let Some(abs_path) = project.read(cx).absolute_path(
1066 &ProjectPath {
1067 path: file.path().clone(),
1068 worktree_id: file.worktree_id(cx),
1069 },
1070 cx,
1071 ) else {
1072 return false;
1073 };
1074 store
1075 .read(cx)
1076 .breakpoint_at_row(&abs_path, as_point.row, cx)
1077 .is_some()
1078 });
1079
1080 if !is_visible {
1081 editor.gutter_breakpoint_indicator.1.get_or_insert_with(|| {
1082 cx.spawn(async move |this, cx| {
1083 cx.background_executor()
1084 .timer(Duration::from_millis(200))
1085 .await;
1086
1087 this.update(cx, |this, cx| {
1088 if let Some(indicator) = this.gutter_breakpoint_indicator.0.as_mut()
1089 {
1090 indicator.is_active = true;
1091 cx.notify();
1092 }
1093 })
1094 .ok();
1095 })
1096 });
1097 }
1098
1099 Some(PhantomBreakpointIndicator {
1100 display_row: new_point.row(),
1101 is_active: is_visible,
1102 collides_with_existing_breakpoint: has_existing_breakpoint,
1103 })
1104 } else {
1105 editor.gutter_breakpoint_indicator.1 = None;
1106 None
1107 }
1108 } else {
1109 editor.gutter_breakpoint_indicator.1 = None;
1110 None
1111 };
1112
1113 if &breakpoint_indicator != &editor.gutter_breakpoint_indicator.0 {
1114 editor.gutter_breakpoint_indicator.0 = breakpoint_indicator;
1115 cx.notify();
1116 }
1117
1118 // Don't trigger hover popover if mouse is hovering over context menu
1119 if text_hitbox.is_hovered(window) {
1120 let point_for_position = position_map.point_for_position(event.position);
1121
1122 editor.update_hovered_link(
1123 point_for_position,
1124 &position_map.snapshot,
1125 modifiers,
1126 window,
1127 cx,
1128 );
1129
1130 if let Some(point) = point_for_position.as_valid() {
1131 let anchor = position_map
1132 .snapshot
1133 .buffer_snapshot
1134 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
1135 hover_at(editor, Some(anchor), window, cx);
1136 Self::update_visible_cursor(editor, point, position_map, window, cx);
1137 } else {
1138 hover_at(editor, None, window, cx);
1139 }
1140 } else {
1141 editor.hide_hovered_link(cx);
1142 hover_at(editor, None, window, cx);
1143 }
1144 }
1145
1146 fn update_visible_cursor(
1147 editor: &mut Editor,
1148 point: DisplayPoint,
1149 position_map: &PositionMap,
1150 window: &mut Window,
1151 cx: &mut Context<Editor>,
1152 ) {
1153 let snapshot = &position_map.snapshot;
1154 let Some(hub) = editor.collaboration_hub() else {
1155 return;
1156 };
1157 let start = snapshot.display_snapshot.clip_point(
1158 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
1159 Bias::Left,
1160 );
1161 let end = snapshot.display_snapshot.clip_point(
1162 DisplayPoint::new(
1163 point.row(),
1164 (point.column() + 1).min(snapshot.line_len(point.row())),
1165 ),
1166 Bias::Right,
1167 );
1168
1169 let range = snapshot
1170 .buffer_snapshot
1171 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
1172 ..snapshot
1173 .buffer_snapshot
1174 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
1175
1176 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
1177 return;
1178 };
1179 let key = crate::HoveredCursor {
1180 replica_id: selection.replica_id,
1181 selection_id: selection.selection.id,
1182 };
1183 editor.hovered_cursors.insert(
1184 key.clone(),
1185 cx.spawn_in(window, async move |editor, cx| {
1186 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
1187 editor
1188 .update(cx, |editor, cx| {
1189 editor.hovered_cursors.remove(&key);
1190 cx.notify();
1191 })
1192 .ok();
1193 }),
1194 );
1195 cx.notify()
1196 }
1197
1198 fn layout_selections(
1199 &self,
1200 start_anchor: Anchor,
1201 end_anchor: Anchor,
1202 local_selections: &[Selection<Point>],
1203 snapshot: &EditorSnapshot,
1204 start_row: DisplayRow,
1205 end_row: DisplayRow,
1206 window: &mut Window,
1207 cx: &mut App,
1208 ) -> (
1209 Vec<(PlayerColor, Vec<SelectionLayout>)>,
1210 BTreeMap<DisplayRow, LineHighlightSpec>,
1211 Option<DisplayPoint>,
1212 ) {
1213 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1214 let mut active_rows = BTreeMap::new();
1215 let mut newest_selection_head = None;
1216
1217 let Some(editor_with_selections) = self.editor_with_selections(cx) else {
1218 return (selections, active_rows, newest_selection_head);
1219 };
1220
1221 editor_with_selections.update(cx, |editor, cx| {
1222 if editor.show_local_selections {
1223 let mut layouts = Vec::new();
1224 let newest = editor.selections.newest(cx);
1225 for selection in local_selections.iter().cloned() {
1226 let is_empty = selection.start == selection.end;
1227 let is_newest = selection == newest;
1228
1229 let layout = SelectionLayout::new(
1230 selection,
1231 editor.selections.line_mode,
1232 editor.cursor_shape,
1233 &snapshot.display_snapshot,
1234 is_newest,
1235 editor.leader_id.is_none(),
1236 None,
1237 );
1238 if is_newest {
1239 newest_selection_head = Some(layout.head);
1240 }
1241
1242 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1243 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1244 {
1245 let contains_non_empty_selection = active_rows
1246 .entry(DisplayRow(row))
1247 .or_insert_with(LineHighlightSpec::default);
1248 contains_non_empty_selection.selection |= !is_empty;
1249 }
1250 layouts.push(layout);
1251 }
1252
1253 let player = editor.current_user_player_color(cx);
1254 selections.push((player, layouts));
1255
1256 if let SelectionDragState::Dragging {
1257 ref selection,
1258 ref drop_cursor,
1259 ref hide_drop_cursor,
1260 } = editor.selection_drag_state
1261 {
1262 if !hide_drop_cursor
1263 && (drop_cursor
1264 .start
1265 .cmp(&selection.start, &snapshot.buffer_snapshot)
1266 .eq(&Ordering::Less)
1267 || drop_cursor
1268 .end
1269 .cmp(&selection.end, &snapshot.buffer_snapshot)
1270 .eq(&Ordering::Greater))
1271 {
1272 let drag_cursor_layout = SelectionLayout::new(
1273 drop_cursor.clone(),
1274 false,
1275 CursorShape::Bar,
1276 &snapshot.display_snapshot,
1277 false,
1278 false,
1279 None,
1280 );
1281 let absent_color = cx.theme().players().absent();
1282 selections.push((absent_color, vec![drag_cursor_layout]));
1283 }
1284 }
1285 }
1286
1287 if let Some(collaboration_hub) = &editor.collaboration_hub {
1288 // When following someone, render the local selections in their color.
1289 if let Some(leader_id) = editor.leader_id {
1290 match leader_id {
1291 CollaboratorId::PeerId(peer_id) => {
1292 if let Some(collaborator) =
1293 collaboration_hub.collaborators(cx).get(&peer_id)
1294 {
1295 if let Some(participant_index) = collaboration_hub
1296 .user_participant_indices(cx)
1297 .get(&collaborator.user_id)
1298 {
1299 if let Some((local_selection_style, _)) = selections.first_mut()
1300 {
1301 *local_selection_style = cx
1302 .theme()
1303 .players()
1304 .color_for_participant(participant_index.0);
1305 }
1306 }
1307 }
1308 }
1309 CollaboratorId::Agent => {
1310 if let Some((local_selection_style, _)) = selections.first_mut() {
1311 *local_selection_style = cx.theme().players().agent();
1312 }
1313 }
1314 }
1315 }
1316
1317 let mut remote_selections = HashMap::default();
1318 for selection in snapshot.remote_selections_in_range(
1319 &(start_anchor..end_anchor),
1320 collaboration_hub.as_ref(),
1321 cx,
1322 ) {
1323 // Don't re-render the leader's selections, since the local selections
1324 // match theirs.
1325 if Some(selection.collaborator_id) == editor.leader_id {
1326 continue;
1327 }
1328 let key = HoveredCursor {
1329 replica_id: selection.replica_id,
1330 selection_id: selection.selection.id,
1331 };
1332
1333 let is_shown =
1334 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1335
1336 remote_selections
1337 .entry(selection.replica_id)
1338 .or_insert((selection.color, Vec::new()))
1339 .1
1340 .push(SelectionLayout::new(
1341 selection.selection,
1342 selection.line_mode,
1343 selection.cursor_shape,
1344 &snapshot.display_snapshot,
1345 false,
1346 false,
1347 if is_shown { selection.user_name } else { None },
1348 ));
1349 }
1350
1351 selections.extend(remote_selections.into_values());
1352 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1353 let layouts = snapshot
1354 .buffer_snapshot
1355 .selections_in_range(&(start_anchor..end_anchor), true)
1356 .map(move |(_, line_mode, cursor_shape, selection)| {
1357 SelectionLayout::new(
1358 selection,
1359 line_mode,
1360 cursor_shape,
1361 &snapshot.display_snapshot,
1362 false,
1363 false,
1364 None,
1365 )
1366 })
1367 .collect::<Vec<_>>();
1368 let player = editor.current_user_player_color(cx);
1369 selections.push((player, layouts));
1370 }
1371 });
1372 (selections, active_rows, newest_selection_head)
1373 }
1374
1375 fn collect_cursors(
1376 &self,
1377 snapshot: &EditorSnapshot,
1378 cx: &mut App,
1379 ) -> Vec<(DisplayPoint, Hsla)> {
1380 let editor = self.editor.read(cx);
1381 let mut cursors = Vec::new();
1382 let mut skip_local = false;
1383 let mut add_cursor = |anchor: Anchor, color| {
1384 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1385 };
1386 // Remote cursors
1387 if let Some(collaboration_hub) = &editor.collaboration_hub {
1388 for remote_selection in snapshot.remote_selections_in_range(
1389 &(Anchor::min()..Anchor::max()),
1390 collaboration_hub.deref(),
1391 cx,
1392 ) {
1393 add_cursor(
1394 remote_selection.selection.head(),
1395 remote_selection.color.cursor,
1396 );
1397 if Some(remote_selection.collaborator_id) == editor.leader_id {
1398 skip_local = true;
1399 }
1400 }
1401 }
1402 // Local cursors
1403 if !skip_local {
1404 let color = cx.theme().players().local().cursor;
1405 editor.selections.disjoint.iter().for_each(|selection| {
1406 add_cursor(selection.head(), color);
1407 });
1408 if let Some(ref selection) = editor.selections.pending_anchor() {
1409 add_cursor(selection.head(), color);
1410 }
1411 }
1412 cursors
1413 }
1414
1415 fn layout_visible_cursors(
1416 &self,
1417 snapshot: &EditorSnapshot,
1418 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1419 row_block_types: &HashMap<DisplayRow, bool>,
1420 visible_display_row_range: Range<DisplayRow>,
1421 line_layouts: &[LineWithInvisibles],
1422 text_hitbox: &Hitbox,
1423 content_origin: gpui::Point<Pixels>,
1424 scroll_position: gpui::Point<f32>,
1425 scroll_pixel_position: gpui::Point<Pixels>,
1426 line_height: Pixels,
1427 em_width: Pixels,
1428 em_advance: Pixels,
1429 autoscroll_containing_element: bool,
1430 window: &mut Window,
1431 cx: &mut App,
1432 ) -> Vec<CursorLayout> {
1433 let mut autoscroll_bounds = None;
1434 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1435 let mut cursors = Vec::new();
1436
1437 let show_local_cursors = editor.show_local_cursors(window, cx);
1438
1439 for (player_color, selections) in selections {
1440 for selection in selections {
1441 let cursor_position = selection.head;
1442
1443 let in_range = visible_display_row_range.contains(&cursor_position.row());
1444 if (selection.is_local && !show_local_cursors)
1445 || !in_range
1446 || row_block_types.get(&cursor_position.row()) == Some(&true)
1447 {
1448 continue;
1449 }
1450
1451 let cursor_row_layout = &line_layouts
1452 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1453 let cursor_column = cursor_position.column() as usize;
1454
1455 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1456 let mut block_width =
1457 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1458 if block_width == Pixels::ZERO {
1459 block_width = em_advance;
1460 }
1461 let block_text = if let CursorShape::Block = selection.cursor_shape {
1462 snapshot
1463 .grapheme_at(cursor_position)
1464 .or_else(|| {
1465 if cursor_column == 0 {
1466 snapshot.placeholder_text().and_then(|s| {
1467 s.graphemes(true).next().map(|s| s.to_string().into())
1468 })
1469 } else {
1470 None
1471 }
1472 })
1473 .map(|text| {
1474 let len = text.len();
1475
1476 let font = cursor_row_layout
1477 .font_id_for_index(cursor_column)
1478 .and_then(|cursor_font_id| {
1479 window.text_system().get_font_for_id(cursor_font_id)
1480 })
1481 .unwrap_or(self.style.text.font());
1482
1483 // Invert the text color for the block cursor. Ensure that the text
1484 // color is opaque enough to be visible against the background color.
1485 //
1486 // 0.75 is an arbitrary threshold to determine if the background color is
1487 // opaque enough to use as a text color.
1488 //
1489 // TODO: In the future we should ensure themes have a `text_inverse` color.
1490 let color = if cx.theme().colors().editor_background.a < 0.75 {
1491 match cx.theme().appearance {
1492 Appearance::Dark => Hsla::black(),
1493 Appearance::Light => Hsla::white(),
1494 }
1495 } else {
1496 cx.theme().colors().editor_background
1497 };
1498
1499 window.text_system().shape_line(
1500 text,
1501 cursor_row_layout.font_size,
1502 &[TextRun {
1503 len,
1504 font,
1505 color,
1506 background_color: None,
1507 strikethrough: None,
1508 underline: None,
1509 }],
1510 )
1511 })
1512 } else {
1513 None
1514 };
1515
1516 let x = cursor_character_x - scroll_pixel_position.x;
1517 let y = (cursor_position.row().as_f32()
1518 - scroll_pixel_position.y / line_height)
1519 * line_height;
1520 if selection.is_newest {
1521 editor.pixel_position_of_newest_cursor = Some(point(
1522 text_hitbox.origin.x + x + block_width / 2.,
1523 text_hitbox.origin.y + y + line_height / 2.,
1524 ));
1525
1526 if autoscroll_containing_element {
1527 let top = text_hitbox.origin.y
1528 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1529 * line_height;
1530 let left = text_hitbox.origin.x
1531 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1532 .max(0.)
1533 * em_width;
1534
1535 let bottom = text_hitbox.origin.y
1536 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1537 * line_height;
1538 let right = text_hitbox.origin.x
1539 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1540 * em_width;
1541
1542 autoscroll_bounds =
1543 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1544 }
1545 }
1546
1547 let mut cursor = CursorLayout {
1548 color: player_color.cursor,
1549 block_width,
1550 origin: point(x, y),
1551 line_height,
1552 shape: selection.cursor_shape,
1553 block_text,
1554 cursor_name: None,
1555 };
1556 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1557 string: name,
1558 color: self.style.background,
1559 is_top_row: cursor_position.row().0 == 0,
1560 });
1561 cursor.layout(content_origin, cursor_name, window, cx);
1562 cursors.push(cursor);
1563 }
1564 }
1565
1566 cursors
1567 });
1568
1569 if let Some(bounds) = autoscroll_bounds {
1570 window.request_autoscroll(bounds);
1571 }
1572
1573 cursor_layouts
1574 }
1575
1576 fn layout_scrollbars(
1577 &self,
1578 snapshot: &EditorSnapshot,
1579 scrollbar_layout_information: &ScrollbarLayoutInformation,
1580 content_offset: gpui::Point<Pixels>,
1581 scroll_position: gpui::Point<f32>,
1582 non_visible_cursors: bool,
1583 right_margin: Pixels,
1584 editor_width: Pixels,
1585 window: &mut Window,
1586 cx: &mut App,
1587 ) -> Option<EditorScrollbars> {
1588 let show_scrollbars = self.editor.read(cx).show_scrollbars;
1589 if (!show_scrollbars.horizontal && !show_scrollbars.vertical)
1590 || self.style.scrollbar_width.is_zero()
1591 {
1592 return None;
1593 }
1594
1595 // If a drag took place after we started dragging the scrollbar,
1596 // cancel the scrollbar drag.
1597 if cx.has_active_drag() {
1598 self.editor.update(cx, |editor, cx| {
1599 editor.scroll_manager.reset_scrollbar_state(cx)
1600 });
1601 }
1602
1603 let editor_settings = EditorSettings::get_global(cx);
1604 let scrollbar_settings = editor_settings.scrollbar;
1605 let show_scrollbars = match scrollbar_settings.show {
1606 ShowScrollbar::Auto => {
1607 let editor = self.editor.read(cx);
1608 let is_singleton = editor.is_singleton(cx);
1609 // Git
1610 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1611 ||
1612 // Buffer Search Results
1613 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1614 ||
1615 // Selected Text Occurrences
1616 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1617 ||
1618 // Selected Symbol Occurrences
1619 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1620 ||
1621 // Diagnostics
1622 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1623 ||
1624 // Cursors out of sight
1625 non_visible_cursors
1626 ||
1627 // Scrollmanager
1628 editor.scroll_manager.scrollbars_visible()
1629 }
1630 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1631 ShowScrollbar::Always => true,
1632 ShowScrollbar::Never => return None,
1633 };
1634
1635 // The horizontal scrollbar is usually slightly offset to align nicely with
1636 // indent guides. However, this offset is not needed if indent guides are
1637 // disabled for the current editor.
1638 let content_offset = self
1639 .editor
1640 .read(cx)
1641 .show_indent_guides
1642 .is_none_or(|should_show| should_show)
1643 .then_some(content_offset)
1644 .unwrap_or_default();
1645
1646 Some(EditorScrollbars::from_scrollbar_axes(
1647 ScrollbarAxes {
1648 horizontal: scrollbar_settings.axes.horizontal
1649 && self.editor.read(cx).show_scrollbars.horizontal,
1650 vertical: scrollbar_settings.axes.vertical
1651 && self.editor.read(cx).show_scrollbars.vertical,
1652 },
1653 scrollbar_layout_information,
1654 content_offset,
1655 scroll_position,
1656 self.style.scrollbar_width,
1657 right_margin,
1658 editor_width,
1659 show_scrollbars,
1660 self.editor.read(cx).scroll_manager.active_scrollbar_state(),
1661 window,
1662 ))
1663 }
1664
1665 fn layout_minimap(
1666 &self,
1667 snapshot: &EditorSnapshot,
1668 minimap_width: Pixels,
1669 scroll_position: gpui::Point<f32>,
1670 scrollbar_layout_information: &ScrollbarLayoutInformation,
1671 scrollbar_layout: Option<&EditorScrollbars>,
1672 window: &mut Window,
1673 cx: &mut App,
1674 ) -> Option<MinimapLayout> {
1675 let minimap_editor = self.editor.read(cx).minimap().cloned()?;
1676
1677 let minimap_settings = EditorSettings::get_global(cx).minimap;
1678
1679 if !snapshot.mode.is_full()
1680 || minimap_width.is_zero()
1681 || matches!(
1682 minimap_settings.show,
1683 ShowMinimap::Auto if scrollbar_layout.is_none_or(|layout| !layout.visible)
1684 )
1685 {
1686 return None;
1687 }
1688
1689 const MINIMAP_AXIS: ScrollbarAxis = ScrollbarAxis::Vertical;
1690
1691 let ScrollbarLayoutInformation {
1692 editor_bounds,
1693 scroll_range,
1694 glyph_grid_cell,
1695 } = scrollbar_layout_information;
1696
1697 let line_height = glyph_grid_cell.height;
1698 let scroll_position = scroll_position.along(MINIMAP_AXIS);
1699
1700 let top_right_anchor = scrollbar_layout
1701 .and_then(|layout| layout.vertical.as_ref())
1702 .map(|vertical_scrollbar| vertical_scrollbar.hitbox.origin)
1703 .unwrap_or_else(|| editor_bounds.top_right());
1704
1705 let thumb_state = self
1706 .editor
1707 .read_with(cx, |editor, _| editor.scroll_manager.minimap_thumb_state());
1708
1709 let show_thumb = match minimap_settings.thumb {
1710 MinimapThumb::Always => true,
1711 MinimapThumb::Hover => thumb_state.is_some(),
1712 };
1713
1714 let minimap_bounds = Bounds::from_corner_and_size(
1715 Corner::TopRight,
1716 top_right_anchor,
1717 size(minimap_width, editor_bounds.size.height),
1718 );
1719 let minimap_line_height = self.get_minimap_line_height(
1720 minimap_editor
1721 .read(cx)
1722 .text_style_refinement
1723 .as_ref()
1724 .and_then(|refinement| refinement.font_size)
1725 .unwrap_or(MINIMAP_FONT_SIZE),
1726 window,
1727 cx,
1728 );
1729 let minimap_height = minimap_bounds.size.height;
1730
1731 let visible_editor_lines = editor_bounds.size.height / line_height;
1732 let total_editor_lines = scroll_range.height / line_height;
1733 let minimap_lines = minimap_height / minimap_line_height;
1734
1735 let minimap_scroll_top = MinimapLayout::calculate_minimap_top_offset(
1736 total_editor_lines,
1737 visible_editor_lines,
1738 minimap_lines,
1739 scroll_position,
1740 );
1741
1742 let layout = ScrollbarLayout::for_minimap(
1743 window.insert_hitbox(minimap_bounds, HitboxBehavior::Normal),
1744 visible_editor_lines,
1745 total_editor_lines,
1746 minimap_line_height,
1747 scroll_position,
1748 minimap_scroll_top,
1749 show_thumb,
1750 )
1751 .with_thumb_state(thumb_state);
1752
1753 minimap_editor.update(cx, |editor, cx| {
1754 editor.set_scroll_position(point(0., minimap_scroll_top), window, cx)
1755 });
1756
1757 // Required for the drop shadow to be visible
1758 const PADDING_OFFSET: Pixels = px(4.);
1759
1760 let mut minimap = div()
1761 .size_full()
1762 .shadow_sm()
1763 .px(PADDING_OFFSET)
1764 .child(minimap_editor)
1765 .into_any_element();
1766
1767 let extended_bounds = minimap_bounds.extend(Edges {
1768 right: PADDING_OFFSET,
1769 left: PADDING_OFFSET,
1770 ..Default::default()
1771 });
1772 minimap.layout_as_root(extended_bounds.size.into(), window, cx);
1773 window.with_absolute_element_offset(extended_bounds.origin, |window| {
1774 minimap.prepaint(window, cx)
1775 });
1776
1777 Some(MinimapLayout {
1778 minimap,
1779 thumb_layout: layout,
1780 thumb_border_style: minimap_settings.thumb_border,
1781 minimap_line_height,
1782 minimap_scroll_top,
1783 max_scroll_top: total_editor_lines,
1784 })
1785 }
1786
1787 fn get_minimap_line_height(
1788 &self,
1789 font_size: AbsoluteLength,
1790 window: &mut Window,
1791 cx: &mut App,
1792 ) -> Pixels {
1793 let rem_size = self.rem_size(cx).unwrap_or(window.rem_size());
1794 let mut text_style = self.style.text.clone();
1795 text_style.font_size = font_size;
1796 text_style.line_height_in_pixels(rem_size)
1797 }
1798
1799 fn prepaint_crease_toggles(
1800 &self,
1801 crease_toggles: &mut [Option<AnyElement>],
1802 line_height: Pixels,
1803 gutter_dimensions: &GutterDimensions,
1804 gutter_settings: crate::editor_settings::Gutter,
1805 scroll_pixel_position: gpui::Point<Pixels>,
1806 gutter_hitbox: &Hitbox,
1807 window: &mut Window,
1808 cx: &mut App,
1809 ) {
1810 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1811 if let Some(crease_toggle) = crease_toggle {
1812 debug_assert!(gutter_settings.folds);
1813 let available_space = size(
1814 AvailableSpace::MinContent,
1815 AvailableSpace::Definite(line_height * 0.55),
1816 );
1817 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1818
1819 let position = point(
1820 gutter_dimensions.width - gutter_dimensions.right_padding,
1821 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1822 );
1823 let centering_offset = point(
1824 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1825 (line_height - crease_toggle_size.height) / 2.,
1826 );
1827 let origin = gutter_hitbox.origin + position + centering_offset;
1828 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1829 }
1830 }
1831 }
1832
1833 fn prepaint_expand_toggles(
1834 &self,
1835 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
1836 window: &mut Window,
1837 cx: &mut App,
1838 ) {
1839 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
1840 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
1841 expand_toggle.layout_as_root(available_space, window, cx);
1842 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
1843 }
1844 }
1845
1846 fn prepaint_crease_trailers(
1847 &self,
1848 trailers: Vec<Option<AnyElement>>,
1849 lines: &[LineWithInvisibles],
1850 line_height: Pixels,
1851 content_origin: gpui::Point<Pixels>,
1852 scroll_pixel_position: gpui::Point<Pixels>,
1853 em_width: Pixels,
1854 window: &mut Window,
1855 cx: &mut App,
1856 ) -> Vec<Option<CreaseTrailerLayout>> {
1857 trailers
1858 .into_iter()
1859 .enumerate()
1860 .map(|(ix, element)| {
1861 let mut element = element?;
1862 let available_space = size(
1863 AvailableSpace::MinContent,
1864 AvailableSpace::Definite(line_height),
1865 );
1866 let size = element.layout_as_root(available_space, window, cx);
1867
1868 let line = &lines[ix];
1869 let padding = if line.width == Pixels::ZERO {
1870 Pixels::ZERO
1871 } else {
1872 4. * em_width
1873 };
1874 let position = point(
1875 scroll_pixel_position.x + line.width + padding,
1876 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1877 );
1878 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1879 let origin = content_origin + position + centering_offset;
1880 element.prepaint_as_root(origin, available_space, window, cx);
1881 Some(CreaseTrailerLayout {
1882 element,
1883 bounds: Bounds::new(origin, size),
1884 })
1885 })
1886 .collect()
1887 }
1888
1889 // Folds contained in a hunk are ignored apart from shrinking visual size
1890 // If a fold contains any hunks then that fold line is marked as modified
1891 fn layout_gutter_diff_hunks(
1892 &self,
1893 line_height: Pixels,
1894 gutter_hitbox: &Hitbox,
1895 display_rows: Range<DisplayRow>,
1896 snapshot: &EditorSnapshot,
1897 window: &mut Window,
1898 cx: &mut App,
1899 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1900 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1901 let mut display_hunks = snapshot
1902 .display_diff_hunks_for_rows(display_rows, folded_buffers)
1903 .map(|hunk| (hunk, None))
1904 .collect::<Vec<_>>();
1905 let git_gutter_setting = ProjectSettings::get_global(cx)
1906 .git
1907 .git_gutter
1908 .unwrap_or_default();
1909 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1910 for (hunk, hitbox) in &mut display_hunks {
1911 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1912 let hunk_bounds =
1913 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1914 *hitbox = Some(window.insert_hitbox(hunk_bounds, HitboxBehavior::BlockMouse));
1915 }
1916 }
1917 }
1918
1919 display_hunks
1920 }
1921
1922 fn layout_inline_diagnostics(
1923 &self,
1924 line_layouts: &[LineWithInvisibles],
1925 crease_trailers: &[Option<CreaseTrailerLayout>],
1926 row_block_types: &HashMap<DisplayRow, bool>,
1927 content_origin: gpui::Point<Pixels>,
1928 scroll_pixel_position: gpui::Point<Pixels>,
1929 inline_completion_popover_origin: Option<gpui::Point<Pixels>>,
1930 start_row: DisplayRow,
1931 end_row: DisplayRow,
1932 line_height: Pixels,
1933 em_width: Pixels,
1934 style: &EditorStyle,
1935 window: &mut Window,
1936 cx: &mut App,
1937 ) -> HashMap<DisplayRow, AnyElement> {
1938 if self.editor.read(cx).mode().is_minimap() {
1939 return HashMap::default();
1940 }
1941
1942 let max_severity = match ProjectSettings::get_global(cx)
1943 .diagnostics
1944 .inline
1945 .max_severity
1946 .unwrap_or_else(|| self.editor.read(cx).diagnostics_max_severity)
1947 .into_lsp()
1948 {
1949 Some(max_severity) => max_severity,
1950 None => return HashMap::default(),
1951 };
1952
1953 let active_diagnostics_group =
1954 if let ActiveDiagnostic::Group(group) = &self.editor.read(cx).active_diagnostics {
1955 Some(group.group_id)
1956 } else {
1957 None
1958 };
1959
1960 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
1961 let snapshot = editor.snapshot(window, cx);
1962 editor
1963 .inline_diagnostics
1964 .iter()
1965 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
1966 .filter(|(_, diagnostic)| match active_diagnostics_group {
1967 Some(active_diagnostics_group) => {
1968 // Active diagnostics are all shown in the editor already, no need to display them inline
1969 diagnostic.group_id != active_diagnostics_group
1970 }
1971 None => true,
1972 })
1973 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
1974 .skip_while(|(point, _)| point.row() < start_row)
1975 .take_while(|(point, _)| point.row() < end_row)
1976 .filter(|(point, _)| !row_block_types.contains_key(&point.row()))
1977 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
1978 acc.entry(point.row())
1979 .or_insert_with(Vec::new)
1980 .push(diagnostic);
1981 acc
1982 })
1983 });
1984
1985 if diagnostics_by_rows.is_empty() {
1986 return HashMap::default();
1987 }
1988
1989 let severity_to_color = |sev: &lsp::DiagnosticSeverity| match sev {
1990 &lsp::DiagnosticSeverity::ERROR => Color::Error,
1991 &lsp::DiagnosticSeverity::WARNING => Color::Warning,
1992 &lsp::DiagnosticSeverity::INFORMATION => Color::Info,
1993 &lsp::DiagnosticSeverity::HINT => Color::Hint,
1994 _ => Color::Error,
1995 };
1996
1997 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
1998 let min_x = ProjectSettings::get_global(cx)
1999 .diagnostics
2000 .inline
2001 .min_column as f32
2002 * em_width;
2003
2004 let mut elements = HashMap::default();
2005 for (row, mut diagnostics) in diagnostics_by_rows {
2006 diagnostics.sort_by_key(|diagnostic| {
2007 (
2008 diagnostic.severity,
2009 std::cmp::Reverse(diagnostic.is_primary),
2010 diagnostic.start.row,
2011 diagnostic.start.column,
2012 )
2013 });
2014
2015 let Some(diagnostic_to_render) = diagnostics
2016 .iter()
2017 .find(|diagnostic| diagnostic.is_primary)
2018 .or_else(|| diagnostics.first())
2019 else {
2020 continue;
2021 };
2022
2023 let pos_y = content_origin.y
2024 + line_height * (row.0 as f32 - scroll_pixel_position.y / line_height);
2025
2026 let window_ix = row.0.saturating_sub(start_row.0) as usize;
2027 let pos_x = {
2028 let crease_trailer_layout = &crease_trailers[window_ix];
2029 let line_layout = &line_layouts[window_ix];
2030
2031 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
2032 crease_trailer.bounds.right()
2033 } else {
2034 content_origin.x - scroll_pixel_position.x + line_layout.width
2035 };
2036
2037 let padded_line = line_end + padding;
2038 let min_start = content_origin.x - scroll_pixel_position.x + min_x;
2039
2040 cmp::max(padded_line, min_start)
2041 };
2042
2043 let behind_inline_completion_popover = inline_completion_popover_origin
2044 .as_ref()
2045 .map_or(false, |inline_completion_popover_origin| {
2046 (pos_y..pos_y + line_height).contains(&inline_completion_popover_origin.y)
2047 });
2048 let opacity = if behind_inline_completion_popover {
2049 0.5
2050 } else {
2051 1.0
2052 };
2053
2054 let mut element = h_flex()
2055 .id(("diagnostic", row.0))
2056 .h(line_height)
2057 .w_full()
2058 .px_1()
2059 .rounded_xs()
2060 .opacity(opacity)
2061 .bg(severity_to_color(&diagnostic_to_render.severity)
2062 .color(cx)
2063 .opacity(0.05))
2064 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
2065 .text_sm()
2066 .font_family(style.text.font().family)
2067 .child(diagnostic_to_render.message.clone())
2068 .into_any();
2069
2070 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
2071
2072 elements.insert(row, element);
2073 }
2074
2075 elements
2076 }
2077
2078 fn layout_inline_code_actions(
2079 &self,
2080 display_point: DisplayPoint,
2081 content_origin: gpui::Point<Pixels>,
2082 scroll_pixel_position: gpui::Point<Pixels>,
2083 line_height: Pixels,
2084 snapshot: &EditorSnapshot,
2085 window: &mut Window,
2086 cx: &mut App,
2087 ) -> Option<AnyElement> {
2088 if !snapshot
2089 .show_code_actions
2090 .unwrap_or(EditorSettings::get_global(cx).inline_code_actions)
2091 {
2092 return None;
2093 }
2094
2095 let icon_size = ui::IconSize::XSmall;
2096 let mut button = self.editor.update(cx, |editor, cx| {
2097 editor.available_code_actions.as_ref()?;
2098 let active = editor
2099 .context_menu
2100 .borrow()
2101 .as_ref()
2102 .and_then(|menu| {
2103 if let crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2104 deployed_from,
2105 ..
2106 }) = menu
2107 {
2108 deployed_from.as_ref()
2109 } else {
2110 None
2111 }
2112 })
2113 .map_or(false, |source| {
2114 matches!(source, CodeActionSource::Indicator(..))
2115 });
2116 Some(editor.render_inline_code_actions(icon_size, display_point.row(), active, cx))
2117 })?;
2118
2119 let buffer_point = display_point.to_point(&snapshot.display_snapshot);
2120
2121 // do not show code action for folded line
2122 if snapshot.is_line_folded(MultiBufferRow(buffer_point.row)) {
2123 return None;
2124 }
2125
2126 // do not show code action for blank line with cursor
2127 let line_indent = snapshot
2128 .display_snapshot
2129 .buffer_snapshot
2130 .line_indent_for_row(MultiBufferRow(buffer_point.row));
2131 if line_indent.is_line_blank() {
2132 return None;
2133 }
2134
2135 const INLINE_SLOT_CHAR_LIMIT: u32 = 4;
2136 const MAX_ALTERNATE_DISTANCE: u32 = 8;
2137
2138 let excerpt_id = snapshot
2139 .display_snapshot
2140 .buffer_snapshot
2141 .excerpt_containing(buffer_point..buffer_point)
2142 .map(|excerpt| excerpt.id());
2143
2144 let is_valid_row = |row_candidate: u32| -> bool {
2145 // move to other row if folded row
2146 if snapshot.is_line_folded(MultiBufferRow(row_candidate)) {
2147 return false;
2148 }
2149 if buffer_point.row == row_candidate {
2150 // move to other row if cursor is in slot
2151 if buffer_point.column < INLINE_SLOT_CHAR_LIMIT {
2152 return false;
2153 }
2154 } else {
2155 let candidate_point = MultiBufferPoint {
2156 row: row_candidate,
2157 column: 0,
2158 };
2159 let candidate_excerpt_id = snapshot
2160 .display_snapshot
2161 .buffer_snapshot
2162 .excerpt_containing(candidate_point..candidate_point)
2163 .map(|excerpt| excerpt.id());
2164 // move to other row if different excerpt
2165 if excerpt_id != candidate_excerpt_id {
2166 return false;
2167 }
2168 }
2169 let line_indent = snapshot
2170 .display_snapshot
2171 .buffer_snapshot
2172 .line_indent_for_row(MultiBufferRow(row_candidate));
2173 // use this row if it's blank
2174 if line_indent.is_line_blank() {
2175 true
2176 } else {
2177 // use this row if code starts after slot
2178 let indent_size = snapshot
2179 .display_snapshot
2180 .buffer_snapshot
2181 .indent_size_for_line(MultiBufferRow(row_candidate));
2182 indent_size.len >= INLINE_SLOT_CHAR_LIMIT
2183 }
2184 };
2185
2186 let new_buffer_row = if is_valid_row(buffer_point.row) {
2187 Some(buffer_point.row)
2188 } else {
2189 let max_row = snapshot.display_snapshot.buffer_snapshot.max_point().row;
2190 (1..=MAX_ALTERNATE_DISTANCE).find_map(|offset| {
2191 let row_above = buffer_point.row.saturating_sub(offset);
2192 let row_below = buffer_point.row + offset;
2193 if row_above != buffer_point.row && is_valid_row(row_above) {
2194 Some(row_above)
2195 } else if row_below <= max_row && is_valid_row(row_below) {
2196 Some(row_below)
2197 } else {
2198 None
2199 }
2200 })
2201 }?;
2202
2203 let new_display_row = snapshot
2204 .display_snapshot
2205 .point_to_display_point(
2206 Point {
2207 row: new_buffer_row,
2208 column: buffer_point.column,
2209 },
2210 text::Bias::Left,
2211 )
2212 .row();
2213
2214 let start_y = content_origin.y
2215 + ((new_display_row.as_f32() - (scroll_pixel_position.y / line_height)) * line_height)
2216 + (line_height / 2.0)
2217 - (icon_size.square(window, cx) / 2.);
2218 let start_x = content_origin.x - scroll_pixel_position.x + (window.rem_size() * 0.1);
2219
2220 let absolute_offset = gpui::point(start_x, start_y);
2221 button.layout_as_root(gpui::AvailableSpace::min_size(), window, cx);
2222 button.prepaint_as_root(
2223 absolute_offset,
2224 gpui::AvailableSpace::min_size(),
2225 window,
2226 cx,
2227 );
2228 Some(button)
2229 }
2230
2231 fn layout_inline_blame(
2232 &self,
2233 display_row: DisplayRow,
2234 row_info: &RowInfo,
2235 line_layout: &LineWithInvisibles,
2236 crease_trailer: Option<&CreaseTrailerLayout>,
2237 em_width: Pixels,
2238 content_origin: gpui::Point<Pixels>,
2239 scroll_pixel_position: gpui::Point<Pixels>,
2240 line_height: Pixels,
2241 text_hitbox: &Hitbox,
2242 window: &mut Window,
2243 cx: &mut App,
2244 ) -> Option<AnyElement> {
2245 if !self
2246 .editor
2247 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
2248 {
2249 return None;
2250 }
2251
2252 let editor = self.editor.read(cx);
2253 let blame = editor.blame.clone()?;
2254 let padding = {
2255 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
2256 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
2257
2258 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
2259
2260 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
2261 match &inline_completion.completion {
2262 InlineCompletion::Edit {
2263 display_mode: EditDisplayMode::TabAccept,
2264 ..
2265 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
2266 _ => {}
2267 }
2268 }
2269
2270 padding * em_width
2271 };
2272
2273 let blame_entry = blame
2274 .update(cx, |blame, cx| {
2275 blame.blame_for_rows(&[*row_info], cx).next()
2276 })
2277 .flatten()?;
2278
2279 let mut element = render_inline_blame_entry(blame_entry.clone(), &self.style, cx)?;
2280
2281 let start_y = content_origin.y
2282 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
2283
2284 let start_x = {
2285 let line_end = if let Some(crease_trailer) = crease_trailer {
2286 crease_trailer.bounds.right()
2287 } else {
2288 content_origin.x - scroll_pixel_position.x + line_layout.width
2289 };
2290
2291 let padded_line_end = line_end + padding;
2292
2293 let min_column_in_pixels = ProjectSettings::get_global(cx)
2294 .git
2295 .inline_blame
2296 .and_then(|settings| settings.min_column)
2297 .map(|col| self.column_pixels(col as usize, window, cx))
2298 .unwrap_or(px(0.));
2299 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
2300
2301 cmp::max(padded_line_end, min_start)
2302 };
2303
2304 let absolute_offset = point(start_x, start_y);
2305 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2306 let bounds = Bounds::new(absolute_offset, size);
2307
2308 self.layout_blame_entry_popover(
2309 bounds,
2310 blame_entry,
2311 blame,
2312 line_height,
2313 text_hitbox,
2314 window,
2315 cx,
2316 );
2317
2318 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
2319
2320 Some(element)
2321 }
2322
2323 fn layout_blame_entry_popover(
2324 &self,
2325 parent_bounds: Bounds<Pixels>,
2326 blame_entry: BlameEntry,
2327 blame: Entity<GitBlame>,
2328 line_height: Pixels,
2329 text_hitbox: &Hitbox,
2330 window: &mut Window,
2331 cx: &mut App,
2332 ) {
2333 let mouse_position = window.mouse_position();
2334 let mouse_over_inline_blame = parent_bounds.contains(&mouse_position);
2335 let mouse_over_popover = self.editor.read_with(cx, |editor, _| {
2336 editor
2337 .inline_blame_popover
2338 .as_ref()
2339 .and_then(|state| state.popover_bounds)
2340 .map_or(false, |bounds| bounds.contains(&mouse_position))
2341 });
2342
2343 self.editor.update(cx, |editor, cx| {
2344 if mouse_over_inline_blame || mouse_over_popover {
2345 editor.show_blame_popover(&blame_entry, mouse_position, cx);
2346 } else {
2347 editor.hide_blame_popover(cx);
2348 }
2349 });
2350
2351 let should_draw = self.editor.read_with(cx, |editor, _| {
2352 editor
2353 .inline_blame_popover
2354 .as_ref()
2355 .map_or(false, |state| state.show_task.is_none())
2356 });
2357
2358 if should_draw {
2359 let maybe_element = self.editor.update(cx, |editor, cx| {
2360 editor
2361 .workspace()
2362 .map(|workspace| workspace.downgrade())
2363 .zip(
2364 editor
2365 .inline_blame_popover
2366 .as_ref()
2367 .map(|p| p.popover_state.clone()),
2368 )
2369 .and_then(|(workspace, popover_state)| {
2370 render_blame_entry_popover(
2371 blame_entry,
2372 popover_state.scroll_handle,
2373 popover_state.commit_message,
2374 popover_state.markdown,
2375 workspace,
2376 &blame,
2377 window,
2378 cx,
2379 )
2380 })
2381 });
2382
2383 if let Some(mut element) = maybe_element {
2384 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2385 let origin = self.editor.read_with(cx, |editor, _| {
2386 let target_point = editor
2387 .inline_blame_popover
2388 .as_ref()
2389 .map_or(mouse_position, |state| state.position);
2390
2391 let overall_height = size.height + HOVER_POPOVER_GAP;
2392 let popover_origin = if target_point.y > overall_height {
2393 point(target_point.x, target_point.y - size.height)
2394 } else {
2395 point(
2396 target_point.x,
2397 target_point.y + line_height + HOVER_POPOVER_GAP,
2398 )
2399 };
2400
2401 let horizontal_offset = (text_hitbox.top_right().x
2402 - POPOVER_RIGHT_OFFSET
2403 - (popover_origin.x + size.width))
2404 .min(Pixels::ZERO);
2405
2406 point(popover_origin.x + horizontal_offset, popover_origin.y)
2407 });
2408
2409 let popover_bounds = Bounds::new(origin, size);
2410 self.editor.update(cx, |editor, _| {
2411 if let Some(state) = &mut editor.inline_blame_popover {
2412 state.popover_bounds = Some(popover_bounds);
2413 }
2414 });
2415
2416 window.defer_draw(element, origin, 2);
2417 }
2418 }
2419 }
2420
2421 fn layout_blame_entries(
2422 &self,
2423 buffer_rows: &[RowInfo],
2424 em_width: Pixels,
2425 scroll_position: gpui::Point<f32>,
2426 line_height: Pixels,
2427 gutter_hitbox: &Hitbox,
2428 max_width: Option<Pixels>,
2429 window: &mut Window,
2430 cx: &mut App,
2431 ) -> Option<Vec<AnyElement>> {
2432 if !self
2433 .editor
2434 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
2435 {
2436 return None;
2437 }
2438
2439 let blame = self.editor.read(cx).blame.clone()?;
2440 let workspace = self.editor.read(cx).workspace()?;
2441 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
2442 blame.blame_for_rows(buffer_rows, cx).collect()
2443 });
2444
2445 let width = if let Some(max_width) = max_width {
2446 AvailableSpace::Definite(max_width)
2447 } else {
2448 AvailableSpace::MaxContent
2449 };
2450 let scroll_top = scroll_position.y * line_height;
2451 let start_x = em_width;
2452
2453 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
2454 let blame_renderer = cx.global::<GlobalBlameRenderer>().0.clone();
2455
2456 let shaped_lines = blamed_rows
2457 .into_iter()
2458 .enumerate()
2459 .flat_map(|(ix, blame_entry)| {
2460 let mut element = render_blame_entry(
2461 ix,
2462 &blame,
2463 blame_entry?,
2464 &self.style,
2465 &mut last_used_color,
2466 self.editor.clone(),
2467 workspace.clone(),
2468 blame_renderer.clone(),
2469 cx,
2470 )?;
2471
2472 let start_y = ix as f32 * line_height - (scroll_top % line_height);
2473 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
2474
2475 element.prepaint_as_root(
2476 absolute_offset,
2477 size(width, AvailableSpace::MinContent),
2478 window,
2479 cx,
2480 );
2481
2482 Some(element)
2483 })
2484 .collect();
2485
2486 Some(shaped_lines)
2487 }
2488
2489 fn layout_indent_guides(
2490 &self,
2491 content_origin: gpui::Point<Pixels>,
2492 text_origin: gpui::Point<Pixels>,
2493 visible_buffer_range: Range<MultiBufferRow>,
2494 scroll_pixel_position: gpui::Point<Pixels>,
2495 line_height: Pixels,
2496 snapshot: &DisplaySnapshot,
2497 window: &mut Window,
2498 cx: &mut App,
2499 ) -> Option<Vec<IndentGuideLayout>> {
2500 if self.editor.read(cx).mode().is_minimap() {
2501 return None;
2502 }
2503 let indent_guides = self.editor.update(cx, |editor, cx| {
2504 editor.indent_guides(visible_buffer_range, snapshot, cx)
2505 })?;
2506
2507 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
2508 editor
2509 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
2510 .unwrap_or_default()
2511 });
2512
2513 Some(
2514 indent_guides
2515 .into_iter()
2516 .enumerate()
2517 .filter_map(|(i, indent_guide)| {
2518 let single_indent_width =
2519 self.column_pixels(indent_guide.tab_size as usize, window, cx);
2520 let total_width = single_indent_width * indent_guide.depth as f32;
2521 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
2522 if start_x >= text_origin.x {
2523 let (offset_y, length) = Self::calculate_indent_guide_bounds(
2524 indent_guide.start_row..indent_guide.end_row,
2525 line_height,
2526 snapshot,
2527 );
2528
2529 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
2530
2531 Some(IndentGuideLayout {
2532 origin: point(start_x, start_y),
2533 length,
2534 single_indent_width,
2535 depth: indent_guide.depth,
2536 active: active_indent_guide_indices.contains(&i),
2537 settings: indent_guide.settings,
2538 })
2539 } else {
2540 None
2541 }
2542 })
2543 .collect(),
2544 )
2545 }
2546
2547 fn calculate_indent_guide_bounds(
2548 row_range: Range<MultiBufferRow>,
2549 line_height: Pixels,
2550 snapshot: &DisplaySnapshot,
2551 ) -> (gpui::Pixels, gpui::Pixels) {
2552 let start_point = Point::new(row_range.start.0, 0);
2553 let end_point = Point::new(row_range.end.0, 0);
2554
2555 let row_range = start_point.to_display_point(snapshot).row()
2556 ..end_point.to_display_point(snapshot).row();
2557
2558 let mut prev_line = start_point;
2559 prev_line.row = prev_line.row.saturating_sub(1);
2560 let prev_line = prev_line.to_display_point(snapshot).row();
2561
2562 let mut cons_line = end_point;
2563 cons_line.row += 1;
2564 let cons_line = cons_line.to_display_point(snapshot).row();
2565
2566 let mut offset_y = row_range.start.0 as f32 * line_height;
2567 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
2568
2569 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
2570 if row_range.end == cons_line {
2571 length += line_height;
2572 }
2573
2574 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
2575 // we want to extend the indent guide to the start of the block.
2576 let mut block_height = 0;
2577 let mut block_offset = 0;
2578 let mut found_excerpt_header = false;
2579 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
2580 if matches!(block, Block::ExcerptBoundary { .. }) {
2581 found_excerpt_header = true;
2582 break;
2583 }
2584 block_offset += block.height();
2585 block_height += block.height();
2586 }
2587 if !found_excerpt_header {
2588 offset_y -= block_offset as f32 * line_height;
2589 length += block_height as f32 * line_height;
2590 }
2591
2592 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
2593 // we want to ensure that the indent guide stops before the excerpt header.
2594 let mut block_height = 0;
2595 let mut found_excerpt_header = false;
2596 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
2597 if matches!(block, Block::ExcerptBoundary { .. }) {
2598 found_excerpt_header = true;
2599 }
2600 block_height += block.height();
2601 }
2602 if found_excerpt_header {
2603 length -= block_height as f32 * line_height;
2604 }
2605
2606 (offset_y, length)
2607 }
2608
2609 fn layout_breakpoints(
2610 &self,
2611 line_height: Pixels,
2612 range: Range<DisplayRow>,
2613 scroll_pixel_position: gpui::Point<Pixels>,
2614 gutter_dimensions: &GutterDimensions,
2615 gutter_hitbox: &Hitbox,
2616 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2617 snapshot: &EditorSnapshot,
2618 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
2619 row_infos: &[RowInfo],
2620 window: &mut Window,
2621 cx: &mut App,
2622 ) -> Vec<AnyElement> {
2623 self.editor.update(cx, |editor, cx| {
2624 breakpoints
2625 .into_iter()
2626 .filter_map(|(display_row, (text_anchor, bp, state))| {
2627 if row_infos
2628 .get((display_row.0.saturating_sub(range.start.0)) as usize)
2629 .is_some_and(|row_info| {
2630 row_info.expand_info.is_some()
2631 || row_info
2632 .diff_status
2633 .is_some_and(|status| status.is_deleted())
2634 })
2635 {
2636 return None;
2637 }
2638
2639 if range.start > display_row || range.end < display_row {
2640 return None;
2641 }
2642
2643 let row =
2644 MultiBufferRow(DisplayPoint::new(display_row, 0).to_point(&snapshot).row);
2645 if snapshot.is_line_folded(row) {
2646 return None;
2647 }
2648
2649 let button = editor.render_breakpoint(text_anchor, display_row, &bp, state, cx);
2650
2651 let button = prepaint_gutter_button(
2652 button,
2653 display_row,
2654 line_height,
2655 gutter_dimensions,
2656 scroll_pixel_position,
2657 gutter_hitbox,
2658 display_hunks,
2659 window,
2660 cx,
2661 );
2662 Some(button)
2663 })
2664 .collect_vec()
2665 })
2666 }
2667
2668 #[allow(clippy::too_many_arguments)]
2669 fn layout_run_indicators(
2670 &self,
2671 line_height: Pixels,
2672 range: Range<DisplayRow>,
2673 row_infos: &[RowInfo],
2674 scroll_pixel_position: gpui::Point<Pixels>,
2675 gutter_dimensions: &GutterDimensions,
2676 gutter_hitbox: &Hitbox,
2677 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2678 snapshot: &EditorSnapshot,
2679 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
2680 window: &mut Window,
2681 cx: &mut App,
2682 ) -> Vec<AnyElement> {
2683 self.editor.update(cx, |editor, cx| {
2684 let active_task_indicator_row =
2685 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2686 deployed_from,
2687 actions,
2688 ..
2689 })) = editor.context_menu.borrow().as_ref()
2690 {
2691 actions
2692 .tasks()
2693 .map(|tasks| tasks.position.to_display_point(snapshot).row())
2694 .or_else(|| match deployed_from {
2695 Some(CodeActionSource::Indicator(row)) => Some(*row),
2696 _ => None,
2697 })
2698 } else {
2699 None
2700 };
2701
2702 let offset_range_start =
2703 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
2704
2705 let offset_range_end =
2706 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
2707
2708 editor
2709 .tasks
2710 .iter()
2711 .filter_map(|(_, tasks)| {
2712 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot);
2713 if multibuffer_point < offset_range_start
2714 || multibuffer_point > offset_range_end
2715 {
2716 return None;
2717 }
2718 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
2719 let buffer_folded = snapshot
2720 .buffer_snapshot
2721 .buffer_line_for_row(multibuffer_row)
2722 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
2723 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
2724 .unwrap_or(false);
2725 if buffer_folded {
2726 return None;
2727 }
2728
2729 if snapshot.is_line_folded(multibuffer_row) {
2730 // Skip folded indicators, unless it's the starting line of a fold.
2731 if multibuffer_row
2732 .0
2733 .checked_sub(1)
2734 .map_or(false, |previous_row| {
2735 snapshot.is_line_folded(MultiBufferRow(previous_row))
2736 })
2737 {
2738 return None;
2739 }
2740 }
2741
2742 let display_row = multibuffer_point.to_display_point(snapshot).row();
2743 if !range.contains(&display_row) {
2744 return None;
2745 }
2746 if row_infos
2747 .get((display_row - range.start).0 as usize)
2748 .is_some_and(|row_info| row_info.expand_info.is_some())
2749 {
2750 return None;
2751 }
2752
2753 let button = editor.render_run_indicator(
2754 &self.style,
2755 Some(display_row) == active_task_indicator_row,
2756 display_row,
2757 breakpoints.remove(&display_row),
2758 cx,
2759 );
2760
2761 let button = prepaint_gutter_button(
2762 button,
2763 display_row,
2764 line_height,
2765 gutter_dimensions,
2766 scroll_pixel_position,
2767 gutter_hitbox,
2768 display_hunks,
2769 window,
2770 cx,
2771 );
2772 Some(button)
2773 })
2774 .collect_vec()
2775 })
2776 }
2777
2778 fn layout_expand_toggles(
2779 &self,
2780 gutter_hitbox: &Hitbox,
2781 gutter_dimensions: GutterDimensions,
2782 em_width: Pixels,
2783 line_height: Pixels,
2784 scroll_position: gpui::Point<f32>,
2785 buffer_rows: &[RowInfo],
2786 window: &mut Window,
2787 cx: &mut App,
2788 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
2789 if self.editor.read(cx).disable_expand_excerpt_buttons {
2790 return vec![];
2791 }
2792
2793 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
2794
2795 let scroll_top = scroll_position.y * line_height;
2796
2797 let max_line_number_length = self
2798 .editor
2799 .read(cx)
2800 .buffer()
2801 .read(cx)
2802 .snapshot(cx)
2803 .widest_line_number()
2804 .ilog10()
2805 + 1;
2806
2807 let elements = buffer_rows
2808 .into_iter()
2809 .enumerate()
2810 .map(|(ix, row_info)| {
2811 let ExpandInfo {
2812 excerpt_id,
2813 direction,
2814 } = row_info.expand_info?;
2815
2816 let icon_name = match direction {
2817 ExpandExcerptDirection::Up => IconName::ExpandUp,
2818 ExpandExcerptDirection::Down => IconName::ExpandDown,
2819 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
2820 };
2821
2822 let git_gutter_width = Self::gutter_strip_width(line_height);
2823 let available_width = gutter_dimensions.left_padding - git_gutter_width;
2824
2825 let editor = self.editor.clone();
2826 let is_wide = max_line_number_length
2827 >= EditorSettings::get_global(cx).gutter.min_line_number_digits as u32
2828 && row_info
2829 .buffer_row
2830 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
2831 || gutter_dimensions.right_padding == px(0.);
2832
2833 let width = if is_wide {
2834 available_width - px(2.)
2835 } else {
2836 available_width + em_width - px(2.)
2837 };
2838
2839 let toggle = IconButton::new(("expand", ix), icon_name)
2840 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
2841 .selected_icon_color(Color::Custom(cx.theme().colors().editor_foreground))
2842 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
2843 .width(width.into())
2844 .on_click(move |_, window, cx| {
2845 editor.update(cx, |editor, cx| {
2846 editor.expand_excerpt(excerpt_id, direction, window, cx);
2847 });
2848 })
2849 .tooltip(Tooltip::for_action_title(
2850 "Expand Excerpt",
2851 &crate::actions::ExpandExcerpts::default(),
2852 ))
2853 .into_any_element();
2854
2855 let position = point(
2856 git_gutter_width + px(1.),
2857 ix as f32 * line_height - (scroll_top % line_height) + px(1.),
2858 );
2859 let origin = gutter_hitbox.origin + position;
2860
2861 Some((toggle, origin))
2862 })
2863 .collect();
2864
2865 elements
2866 }
2867
2868 fn calculate_relative_line_numbers(
2869 &self,
2870 snapshot: &EditorSnapshot,
2871 rows: &Range<DisplayRow>,
2872 relative_to: Option<DisplayRow>,
2873 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2874 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2875 let Some(relative_to) = relative_to else {
2876 return relative_rows;
2877 };
2878
2879 let start = rows.start.min(relative_to);
2880 let end = rows.end.max(relative_to);
2881
2882 let buffer_rows = snapshot
2883 .row_infos(start)
2884 .take(1 + end.minus(start) as usize)
2885 .collect::<Vec<_>>();
2886
2887 let head_idx = relative_to.minus(start);
2888 let mut delta = 1;
2889 let mut i = head_idx + 1;
2890 while i < buffer_rows.len() as u32 {
2891 if buffer_rows[i as usize].buffer_row.is_some() {
2892 if rows.contains(&DisplayRow(i + start.0)) {
2893 relative_rows.insert(DisplayRow(i + start.0), delta);
2894 }
2895 delta += 1;
2896 }
2897 i += 1;
2898 }
2899 delta = 1;
2900 i = head_idx.min(buffer_rows.len() as u32 - 1);
2901 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2902 i -= 1;
2903 }
2904
2905 while i > 0 {
2906 i -= 1;
2907 if buffer_rows[i as usize].buffer_row.is_some() {
2908 if rows.contains(&DisplayRow(i + start.0)) {
2909 relative_rows.insert(DisplayRow(i + start.0), delta);
2910 }
2911 delta += 1;
2912 }
2913 }
2914
2915 relative_rows
2916 }
2917
2918 fn layout_line_numbers(
2919 &self,
2920 gutter_hitbox: Option<&Hitbox>,
2921 gutter_dimensions: GutterDimensions,
2922 line_height: Pixels,
2923 scroll_position: gpui::Point<f32>,
2924 rows: Range<DisplayRow>,
2925 buffer_rows: &[RowInfo],
2926 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
2927 newest_selection_head: Option<DisplayPoint>,
2928 snapshot: &EditorSnapshot,
2929 window: &mut Window,
2930 cx: &mut App,
2931 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2932 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2933 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode.is_full()
2934 });
2935 if !include_line_numbers {
2936 return Arc::default();
2937 }
2938
2939 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2940 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2941 let newest = editor.selections.newest::<Point>(cx);
2942 SelectionLayout::new(
2943 newest,
2944 editor.selections.line_mode,
2945 editor.cursor_shape,
2946 &snapshot.display_snapshot,
2947 true,
2948 true,
2949 None,
2950 )
2951 .head
2952 });
2953 let is_relative = editor.should_use_relative_line_numbers(cx);
2954 (newest_selection_head, is_relative)
2955 });
2956
2957 let relative_to = if is_relative {
2958 Some(newest_selection_head.row())
2959 } else {
2960 None
2961 };
2962 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2963 let mut line_number = String::new();
2964 let line_numbers = buffer_rows
2965 .into_iter()
2966 .enumerate()
2967 .flat_map(|(ix, row_info)| {
2968 let display_row = DisplayRow(rows.start.0 + ix as u32);
2969 line_number.clear();
2970 let non_relative_number = row_info.buffer_row? + 1;
2971 let number = relative_rows
2972 .get(&display_row)
2973 .unwrap_or(&non_relative_number);
2974 write!(&mut line_number, "{number}").unwrap();
2975 if row_info
2976 .diff_status
2977 .is_some_and(|status| status.is_deleted())
2978 {
2979 return None;
2980 }
2981
2982 let color = active_rows
2983 .get(&display_row)
2984 .map(|spec| {
2985 if spec.breakpoint {
2986 cx.theme().colors().debugger_accent
2987 } else {
2988 cx.theme().colors().editor_active_line_number
2989 }
2990 })
2991 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
2992 let shaped_line =
2993 self.shape_line_number(SharedString::from(&line_number), color, window);
2994 let scroll_top = scroll_position.y * line_height;
2995 let line_origin = gutter_hitbox.map(|hitbox| {
2996 hitbox.origin
2997 + point(
2998 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2999 ix as f32 * line_height - (scroll_top % line_height),
3000 )
3001 });
3002
3003 #[cfg(not(test))]
3004 let hitbox = line_origin.map(|line_origin| {
3005 window.insert_hitbox(
3006 Bounds::new(line_origin, size(shaped_line.width, line_height)),
3007 HitboxBehavior::Normal,
3008 )
3009 });
3010 #[cfg(test)]
3011 let hitbox = {
3012 let _ = line_origin;
3013 None
3014 };
3015
3016 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
3017 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
3018 let line_number = LineNumberLayout {
3019 shaped_line,
3020 hitbox,
3021 };
3022 Some((multi_buffer_row, line_number))
3023 })
3024 .collect();
3025 Arc::new(line_numbers)
3026 }
3027
3028 fn layout_crease_toggles(
3029 &self,
3030 rows: Range<DisplayRow>,
3031 row_infos: &[RowInfo],
3032 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3033 snapshot: &EditorSnapshot,
3034 window: &mut Window,
3035 cx: &mut App,
3036 ) -> Vec<Option<AnyElement>> {
3037 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
3038 && snapshot.mode.is_full()
3039 && self.editor.read(cx).is_singleton(cx);
3040 if include_fold_statuses {
3041 row_infos
3042 .into_iter()
3043 .enumerate()
3044 .map(|(ix, info)| {
3045 if info.expand_info.is_some() {
3046 return None;
3047 }
3048 let row = info.multibuffer_row?;
3049 let display_row = DisplayRow(rows.start.0 + ix as u32);
3050 let active = active_rows.contains_key(&display_row);
3051
3052 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
3053 })
3054 .collect()
3055 } else {
3056 Vec::new()
3057 }
3058 }
3059
3060 fn layout_crease_trailers(
3061 &self,
3062 buffer_rows: impl IntoIterator<Item = RowInfo>,
3063 snapshot: &EditorSnapshot,
3064 window: &mut Window,
3065 cx: &mut App,
3066 ) -> Vec<Option<AnyElement>> {
3067 buffer_rows
3068 .into_iter()
3069 .map(|row_info| {
3070 if row_info.expand_info.is_some() {
3071 return None;
3072 }
3073 if let Some(row) = row_info.multibuffer_row {
3074 snapshot.render_crease_trailer(row, window, cx)
3075 } else {
3076 None
3077 }
3078 })
3079 .collect()
3080 }
3081
3082 fn layout_lines(
3083 rows: Range<DisplayRow>,
3084 snapshot: &EditorSnapshot,
3085 style: &EditorStyle,
3086 editor_width: Pixels,
3087 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3088 window: &mut Window,
3089 cx: &mut App,
3090 ) -> Vec<LineWithInvisibles> {
3091 if rows.start >= rows.end {
3092 return Vec::new();
3093 }
3094
3095 // Show the placeholder when the editor is empty
3096 if snapshot.is_empty() {
3097 let font_size = style.text.font_size.to_pixels(window.rem_size());
3098 let placeholder_color = cx.theme().colors().text_placeholder;
3099 let placeholder_text = snapshot.placeholder_text();
3100
3101 let placeholder_lines = placeholder_text
3102 .as_ref()
3103 .map_or("", AsRef::as_ref)
3104 .split('\n')
3105 .skip(rows.start.0 as usize)
3106 .chain(iter::repeat(""))
3107 .take(rows.len());
3108 placeholder_lines
3109 .map(move |line| {
3110 let run = TextRun {
3111 len: line.len(),
3112 font: style.text.font(),
3113 color: placeholder_color,
3114 background_color: None,
3115 underline: None,
3116 strikethrough: None,
3117 };
3118 let line =
3119 window
3120 .text_system()
3121 .shape_line(line.to_string().into(), font_size, &[run]);
3122 LineWithInvisibles {
3123 width: line.width,
3124 len: line.len,
3125 fragments: smallvec![LineFragment::Text(line)],
3126 invisibles: Vec::new(),
3127 font_size,
3128 }
3129 })
3130 .collect()
3131 } else {
3132 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
3133 LineWithInvisibles::from_chunks(
3134 chunks,
3135 &style,
3136 MAX_LINE_LEN,
3137 rows.len(),
3138 &snapshot.mode,
3139 editor_width,
3140 is_row_soft_wrapped,
3141 window,
3142 cx,
3143 )
3144 }
3145 }
3146
3147 fn prepaint_lines(
3148 &self,
3149 start_row: DisplayRow,
3150 line_layouts: &mut [LineWithInvisibles],
3151 line_height: Pixels,
3152 scroll_pixel_position: gpui::Point<Pixels>,
3153 content_origin: gpui::Point<Pixels>,
3154 window: &mut Window,
3155 cx: &mut App,
3156 ) -> SmallVec<[AnyElement; 1]> {
3157 let mut line_elements = SmallVec::new();
3158 for (ix, line) in line_layouts.iter_mut().enumerate() {
3159 let row = start_row + DisplayRow(ix as u32);
3160 line.prepaint(
3161 line_height,
3162 scroll_pixel_position,
3163 row,
3164 content_origin,
3165 &mut line_elements,
3166 window,
3167 cx,
3168 );
3169 }
3170 line_elements
3171 }
3172
3173 fn render_block(
3174 &self,
3175 block: &Block,
3176 available_width: AvailableSpace,
3177 block_id: BlockId,
3178 block_row_start: DisplayRow,
3179 snapshot: &EditorSnapshot,
3180 text_x: Pixels,
3181 rows: &Range<DisplayRow>,
3182 line_layouts: &[LineWithInvisibles],
3183 editor_margins: &EditorMargins,
3184 line_height: Pixels,
3185 em_width: Pixels,
3186 text_hitbox: &Hitbox,
3187 editor_width: Pixels,
3188 scroll_width: &mut Pixels,
3189 resized_blocks: &mut HashMap<CustomBlockId, u32>,
3190 row_block_types: &mut HashMap<DisplayRow, bool>,
3191 selections: &[Selection<Point>],
3192 selected_buffer_ids: &Vec<BufferId>,
3193 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3194 sticky_header_excerpt_id: Option<ExcerptId>,
3195 window: &mut Window,
3196 cx: &mut App,
3197 ) -> Option<(AnyElement, Size<Pixels>, DisplayRow, Pixels)> {
3198 let mut x_position = None;
3199 let mut element = match block {
3200 Block::Custom(custom) => {
3201 let block_start = custom.start().to_point(&snapshot.buffer_snapshot);
3202 let block_end = custom.end().to_point(&snapshot.buffer_snapshot);
3203 if block.place_near() && snapshot.is_line_folded(MultiBufferRow(block_start.row)) {
3204 return None;
3205 }
3206 let align_to = block_start.to_display_point(snapshot);
3207 let x_and_width = |layout: &LineWithInvisibles| {
3208 Some((
3209 text_x + layout.x_for_index(align_to.column() as usize),
3210 text_x + layout.width,
3211 ))
3212 };
3213 let line_ix = align_to.row().0.checked_sub(rows.start.0);
3214 x_position =
3215 if let Some(layout) = line_ix.and_then(|ix| line_layouts.get(ix as usize)) {
3216 x_and_width(&layout)
3217 } else {
3218 x_and_width(&layout_line(
3219 align_to.row(),
3220 snapshot,
3221 &self.style,
3222 editor_width,
3223 is_row_soft_wrapped,
3224 window,
3225 cx,
3226 ))
3227 };
3228
3229 let anchor_x = x_position.unwrap().0;
3230
3231 let selected = selections
3232 .binary_search_by(|selection| {
3233 if selection.end <= block_start {
3234 Ordering::Less
3235 } else if selection.start >= block_end {
3236 Ordering::Greater
3237 } else {
3238 Ordering::Equal
3239 }
3240 })
3241 .is_ok();
3242
3243 div()
3244 .size_full()
3245 .children(
3246 (!snapshot.mode.is_minimap() || custom.render_in_minimap).then(|| {
3247 custom.render(&mut BlockContext {
3248 window,
3249 app: cx,
3250 anchor_x,
3251 margins: editor_margins,
3252 line_height,
3253 em_width,
3254 block_id,
3255 selected,
3256 max_width: text_hitbox.size.width.max(*scroll_width),
3257 editor_style: &self.style,
3258 })
3259 }),
3260 )
3261 .into_any()
3262 }
3263
3264 Block::FoldedBuffer {
3265 first_excerpt,
3266 height,
3267 ..
3268 } => {
3269 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
3270 let result = v_flex().id(block_id).w_full().pr(editor_margins.right);
3271
3272 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
3273 result
3274 .child(self.render_buffer_header(
3275 first_excerpt,
3276 true,
3277 selected,
3278 false,
3279 jump_data,
3280 window,
3281 cx,
3282 ))
3283 .into_any_element()
3284 }
3285
3286 Block::ExcerptBoundary {
3287 excerpt,
3288 height,
3289 starts_new_buffer,
3290 ..
3291 } => {
3292 let color = cx.theme().colors().clone();
3293 let mut result = v_flex().id(block_id).w_full();
3294
3295 let jump_data = header_jump_data(snapshot, block_row_start, *height, excerpt);
3296
3297 if *starts_new_buffer {
3298 if sticky_header_excerpt_id != Some(excerpt.id) {
3299 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3300
3301 result = result.child(div().pr(editor_margins.right).child(
3302 self.render_buffer_header(
3303 excerpt, false, selected, false, jump_data, window, cx,
3304 ),
3305 ));
3306 } else {
3307 result =
3308 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
3309 }
3310 } else {
3311 result = result.child(
3312 h_flex().relative().child(
3313 div()
3314 .top(line_height / 2.)
3315 .absolute()
3316 .w_full()
3317 .h_px()
3318 .bg(color.border_variant),
3319 ),
3320 );
3321 };
3322
3323 result.into_any()
3324 }
3325 };
3326
3327 // Discover the element's content height, then round up to the nearest multiple of line height.
3328 let preliminary_size = element.layout_as_root(
3329 size(available_width, AvailableSpace::MinContent),
3330 window,
3331 cx,
3332 );
3333 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
3334 let final_size = if preliminary_size.height == quantized_height {
3335 preliminary_size
3336 } else {
3337 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
3338 };
3339 let mut element_height_in_lines = ((final_size.height / line_height).ceil() as u32).max(1);
3340
3341 let mut row = block_row_start;
3342 let mut x_offset = px(0.);
3343 let mut is_block = true;
3344
3345 if let BlockId::Custom(custom_block_id) = block_id {
3346 if block.has_height() {
3347 if block.place_near() {
3348 if let Some((x_target, line_width)) = x_position {
3349 let margin = em_width * 2;
3350 if line_width + final_size.width + margin
3351 < editor_width + editor_margins.gutter.full_width()
3352 && !row_block_types.contains_key(&(row - 1))
3353 && element_height_in_lines == 1
3354 {
3355 x_offset = line_width + margin;
3356 row = row - 1;
3357 is_block = false;
3358 element_height_in_lines = 0;
3359 row_block_types.insert(row, is_block);
3360 } else {
3361 let max_offset = editor_width + editor_margins.gutter.full_width()
3362 - final_size.width;
3363 let min_offset = (x_target + em_width - final_size.width)
3364 .max(editor_margins.gutter.full_width());
3365 x_offset = x_target.min(max_offset).max(min_offset);
3366 }
3367 }
3368 };
3369 if element_height_in_lines != block.height() {
3370 resized_blocks.insert(custom_block_id, element_height_in_lines);
3371 }
3372 }
3373 }
3374 for i in 0..element_height_in_lines {
3375 row_block_types.insert(row + i, is_block);
3376 }
3377
3378 Some((element, final_size, row, x_offset))
3379 }
3380
3381 fn render_buffer_header(
3382 &self,
3383 for_excerpt: &ExcerptInfo,
3384 is_folded: bool,
3385 is_selected: bool,
3386 is_sticky: bool,
3387 jump_data: JumpData,
3388 window: &mut Window,
3389 cx: &mut App,
3390 ) -> Div {
3391 let editor = self.editor.read(cx);
3392 let file_status = editor
3393 .buffer
3394 .read(cx)
3395 .all_diff_hunks_expanded()
3396 .then(|| {
3397 editor
3398 .project
3399 .as_ref()?
3400 .read(cx)
3401 .status_for_buffer_id(for_excerpt.buffer_id, cx)
3402 })
3403 .flatten();
3404
3405 let include_root = editor
3406 .project
3407 .as_ref()
3408 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
3409 .unwrap_or_default();
3410 let can_open_excerpts = Editor::can_open_excerpts_in_file(for_excerpt.buffer.file());
3411 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
3412 let filename = path
3413 .as_ref()
3414 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
3415 let parent_path = path.as_ref().and_then(|path| {
3416 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
3417 });
3418 let focus_handle = editor.focus_handle(cx);
3419 let colors = cx.theme().colors();
3420
3421 div()
3422 .p_1()
3423 .w_full()
3424 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
3425 .child(
3426 h_flex()
3427 .size_full()
3428 .gap_2()
3429 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
3430 .pl_0p5()
3431 .pr_5()
3432 .rounded_sm()
3433 .when(is_sticky, |el| el.shadow_md())
3434 .border_1()
3435 .map(|div| {
3436 let border_color = if is_selected
3437 && is_folded
3438 && focus_handle.contains_focused(window, cx)
3439 {
3440 colors.border_focused
3441 } else {
3442 colors.border
3443 };
3444 div.border_color(border_color)
3445 })
3446 .bg(colors.editor_subheader_background)
3447 .hover(|style| style.bg(colors.element_hover))
3448 .map(|header| {
3449 let editor = self.editor.clone();
3450 let buffer_id = for_excerpt.buffer_id;
3451 let toggle_chevron_icon =
3452 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
3453 header.child(
3454 div()
3455 .hover(|style| style.bg(colors.element_selected))
3456 .rounded_xs()
3457 .child(
3458 ButtonLike::new("toggle-buffer-fold")
3459 .style(ui::ButtonStyle::Transparent)
3460 .height(px(28.).into())
3461 .width(px(28.).into())
3462 .children(toggle_chevron_icon)
3463 .tooltip({
3464 let focus_handle = focus_handle.clone();
3465 move |window, cx| {
3466 Tooltip::for_action_in(
3467 "Toggle Excerpt Fold",
3468 &ToggleFold,
3469 &focus_handle,
3470 window,
3471 cx,
3472 )
3473 }
3474 })
3475 .on_click(move |_, _, cx| {
3476 if is_folded {
3477 editor.update(cx, |editor, cx| {
3478 editor.unfold_buffer(buffer_id, cx);
3479 });
3480 } else {
3481 editor.update(cx, |editor, cx| {
3482 editor.fold_buffer(buffer_id, cx);
3483 });
3484 }
3485 }),
3486 ),
3487 )
3488 })
3489 .children(
3490 editor
3491 .addons
3492 .values()
3493 .filter_map(|addon| {
3494 addon.render_buffer_header_controls(for_excerpt, window, cx)
3495 })
3496 .take(1),
3497 )
3498 .child(
3499 h_flex()
3500 .cursor_pointer()
3501 .id("path header block")
3502 .size_full()
3503 .justify_between()
3504 .child(
3505 h_flex()
3506 .gap_2()
3507 .child(
3508 Label::new(
3509 filename
3510 .map(SharedString::from)
3511 .unwrap_or_else(|| "untitled".into()),
3512 )
3513 .single_line()
3514 .when_some(
3515 file_status,
3516 |el, status| {
3517 el.color(if status.is_conflicted() {
3518 Color::Conflict
3519 } else if status.is_modified() {
3520 Color::Modified
3521 } else if status.is_deleted() {
3522 Color::Disabled
3523 } else {
3524 Color::Created
3525 })
3526 .when(status.is_deleted(), |el| el.strikethrough())
3527 },
3528 ),
3529 )
3530 .when_some(parent_path, |then, path| {
3531 then.child(div().child(path).text_color(
3532 if file_status.is_some_and(FileStatus::is_deleted) {
3533 colors.text_disabled
3534 } else {
3535 colors.text_muted
3536 },
3537 ))
3538 }),
3539 )
3540 .when(can_open_excerpts && is_selected && path.is_some(), |el| {
3541 el.child(
3542 h_flex()
3543 .id("jump-to-file-button")
3544 .gap_2p5()
3545 .child(Label::new("Jump To File"))
3546 .children(
3547 KeyBinding::for_action_in(
3548 &OpenExcerpts,
3549 &focus_handle,
3550 window,
3551 cx,
3552 )
3553 .map(|binding| binding.into_any_element()),
3554 ),
3555 )
3556 })
3557 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
3558 .on_click(window.listener_for(&self.editor, {
3559 move |editor, e: &ClickEvent, window, cx| {
3560 editor.open_excerpts_common(
3561 Some(jump_data.clone()),
3562 e.down.modifiers.secondary(),
3563 window,
3564 cx,
3565 );
3566 }
3567 })),
3568 ),
3569 )
3570 }
3571
3572 fn render_blocks(
3573 &self,
3574 rows: Range<DisplayRow>,
3575 snapshot: &EditorSnapshot,
3576 hitbox: &Hitbox,
3577 text_hitbox: &Hitbox,
3578 editor_width: Pixels,
3579 scroll_width: &mut Pixels,
3580 editor_margins: &EditorMargins,
3581 em_width: Pixels,
3582 text_x: Pixels,
3583 line_height: Pixels,
3584 line_layouts: &mut [LineWithInvisibles],
3585 selections: &[Selection<Point>],
3586 selected_buffer_ids: &Vec<BufferId>,
3587 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3588 sticky_header_excerpt_id: Option<ExcerptId>,
3589 window: &mut Window,
3590 cx: &mut App,
3591 ) -> Result<(Vec<BlockLayout>, HashMap<DisplayRow, bool>), HashMap<CustomBlockId, u32>> {
3592 let (fixed_blocks, non_fixed_blocks) = snapshot
3593 .blocks_in_range(rows.clone())
3594 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
3595
3596 let mut focused_block = self
3597 .editor
3598 .update(cx, |editor, _| editor.take_focused_block());
3599 let mut fixed_block_max_width = Pixels::ZERO;
3600 let mut blocks = Vec::new();
3601 let mut resized_blocks = HashMap::default();
3602 let mut row_block_types = HashMap::default();
3603
3604 for (row, block) in fixed_blocks {
3605 let block_id = block.id();
3606
3607 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3608 focused_block = None;
3609 }
3610
3611 if let Some((element, element_size, row, x_offset)) = self.render_block(
3612 block,
3613 AvailableSpace::MinContent,
3614 block_id,
3615 row,
3616 snapshot,
3617 text_x,
3618 &rows,
3619 line_layouts,
3620 editor_margins,
3621 line_height,
3622 em_width,
3623 text_hitbox,
3624 editor_width,
3625 scroll_width,
3626 &mut resized_blocks,
3627 &mut row_block_types,
3628 selections,
3629 selected_buffer_ids,
3630 is_row_soft_wrapped,
3631 sticky_header_excerpt_id,
3632 window,
3633 cx,
3634 ) {
3635 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
3636 blocks.push(BlockLayout {
3637 id: block_id,
3638 x_offset,
3639 row: Some(row),
3640 element,
3641 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
3642 style: BlockStyle::Fixed,
3643 overlaps_gutter: true,
3644 is_buffer_header: block.is_buffer_header(),
3645 });
3646 }
3647 }
3648
3649 for (row, block) in non_fixed_blocks {
3650 let style = block.style();
3651 let width = match (style, block.place_near()) {
3652 (_, true) => AvailableSpace::MinContent,
3653 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
3654 (BlockStyle::Flex, _) => hitbox
3655 .size
3656 .width
3657 .max(fixed_block_max_width)
3658 .max(editor_margins.gutter.width + *scroll_width)
3659 .into(),
3660 (BlockStyle::Fixed, _) => unreachable!(),
3661 };
3662 let block_id = block.id();
3663
3664 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3665 focused_block = None;
3666 }
3667
3668 if let Some((element, element_size, row, x_offset)) = self.render_block(
3669 block,
3670 width,
3671 block_id,
3672 row,
3673 snapshot,
3674 text_x,
3675 &rows,
3676 line_layouts,
3677 editor_margins,
3678 line_height,
3679 em_width,
3680 text_hitbox,
3681 editor_width,
3682 scroll_width,
3683 &mut resized_blocks,
3684 &mut row_block_types,
3685 selections,
3686 selected_buffer_ids,
3687 is_row_soft_wrapped,
3688 sticky_header_excerpt_id,
3689 window,
3690 cx,
3691 ) {
3692 blocks.push(BlockLayout {
3693 id: block_id,
3694 x_offset,
3695 row: Some(row),
3696 element,
3697 available_space: size(width, element_size.height.into()),
3698 style,
3699 overlaps_gutter: !block.place_near(),
3700 is_buffer_header: block.is_buffer_header(),
3701 });
3702 }
3703 }
3704
3705 if let Some(focused_block) = focused_block {
3706 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
3707 if focus_handle.is_focused(window) {
3708 if let Some(block) = snapshot.block_for_id(focused_block.id) {
3709 let style = block.style();
3710 let width = match style {
3711 BlockStyle::Fixed => AvailableSpace::MinContent,
3712 BlockStyle::Flex => AvailableSpace::Definite(
3713 hitbox
3714 .size
3715 .width
3716 .max(fixed_block_max_width)
3717 .max(editor_margins.gutter.width + *scroll_width),
3718 ),
3719 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
3720 };
3721
3722 if let Some((element, element_size, _, x_offset)) = self.render_block(
3723 &block,
3724 width,
3725 focused_block.id,
3726 rows.end,
3727 snapshot,
3728 text_x,
3729 &rows,
3730 line_layouts,
3731 editor_margins,
3732 line_height,
3733 em_width,
3734 text_hitbox,
3735 editor_width,
3736 scroll_width,
3737 &mut resized_blocks,
3738 &mut row_block_types,
3739 selections,
3740 selected_buffer_ids,
3741 is_row_soft_wrapped,
3742 sticky_header_excerpt_id,
3743 window,
3744 cx,
3745 ) {
3746 blocks.push(BlockLayout {
3747 id: block.id(),
3748 x_offset,
3749 row: None,
3750 element,
3751 available_space: size(width, element_size.height.into()),
3752 style,
3753 overlaps_gutter: true,
3754 is_buffer_header: block.is_buffer_header(),
3755 });
3756 }
3757 }
3758 }
3759 }
3760 }
3761
3762 if resized_blocks.is_empty() {
3763 *scroll_width =
3764 (*scroll_width).max(fixed_block_max_width - editor_margins.gutter.width);
3765 Ok((blocks, row_block_types))
3766 } else {
3767 Err(resized_blocks)
3768 }
3769 }
3770
3771 fn layout_blocks(
3772 &self,
3773 blocks: &mut Vec<BlockLayout>,
3774 hitbox: &Hitbox,
3775 line_height: Pixels,
3776 scroll_pixel_position: gpui::Point<Pixels>,
3777 window: &mut Window,
3778 cx: &mut App,
3779 ) {
3780 for block in blocks {
3781 let mut origin = if let Some(row) = block.row {
3782 hitbox.origin
3783 + point(
3784 block.x_offset,
3785 row.as_f32() * line_height - scroll_pixel_position.y,
3786 )
3787 } else {
3788 // Position the block outside the visible area
3789 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
3790 };
3791
3792 if !matches!(block.style, BlockStyle::Sticky) {
3793 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
3794 }
3795
3796 let focus_handle =
3797 block
3798 .element
3799 .prepaint_as_root(origin, block.available_space, window, cx);
3800
3801 if let Some(focus_handle) = focus_handle {
3802 self.editor.update(cx, |editor, _cx| {
3803 editor.set_focused_block(FocusedBlock {
3804 id: block.id,
3805 focus_handle: focus_handle.downgrade(),
3806 });
3807 });
3808 }
3809 }
3810 }
3811
3812 fn layout_sticky_buffer_header(
3813 &self,
3814 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
3815 scroll_position: f32,
3816 line_height: Pixels,
3817 right_margin: Pixels,
3818 snapshot: &EditorSnapshot,
3819 hitbox: &Hitbox,
3820 selected_buffer_ids: &Vec<BufferId>,
3821 blocks: &[BlockLayout],
3822 window: &mut Window,
3823 cx: &mut App,
3824 ) -> AnyElement {
3825 let jump_data = header_jump_data(
3826 snapshot,
3827 DisplayRow(scroll_position as u32),
3828 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3829 excerpt,
3830 );
3831
3832 let editor_bg_color = cx.theme().colors().editor_background;
3833
3834 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3835
3836 let available_width = hitbox.bounds.size.width - right_margin;
3837
3838 let mut header = v_flex()
3839 .relative()
3840 .child(
3841 div()
3842 .w(available_width)
3843 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3844 .bg(linear_gradient(
3845 0.,
3846 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3847 linear_color_stop(editor_bg_color, 0.6),
3848 ))
3849 .absolute()
3850 .top_0(),
3851 )
3852 .child(
3853 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
3854 .into_any_element(),
3855 )
3856 .into_any_element();
3857
3858 let mut origin = hitbox.origin;
3859 // Move floating header up to avoid colliding with the next buffer header.
3860 for block in blocks.iter() {
3861 if !block.is_buffer_header {
3862 continue;
3863 }
3864
3865 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position as u32) else {
3866 continue;
3867 };
3868
3869 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
3870 let offset = scroll_position - max_row as f32;
3871
3872 if offset > 0.0 {
3873 origin.y -= offset * line_height;
3874 }
3875 break;
3876 }
3877
3878 let size = size(
3879 AvailableSpace::Definite(available_width),
3880 AvailableSpace::MinContent,
3881 );
3882
3883 header.prepaint_as_root(origin, size, window, cx);
3884
3885 header
3886 }
3887
3888 fn layout_cursor_popovers(
3889 &self,
3890 line_height: Pixels,
3891 text_hitbox: &Hitbox,
3892 content_origin: gpui::Point<Pixels>,
3893 right_margin: Pixels,
3894 start_row: DisplayRow,
3895 scroll_pixel_position: gpui::Point<Pixels>,
3896 line_layouts: &[LineWithInvisibles],
3897 cursor: DisplayPoint,
3898 cursor_point: Point,
3899 style: &EditorStyle,
3900 window: &mut Window,
3901 cx: &mut App,
3902 ) -> Option<ContextMenuLayout> {
3903 let mut min_menu_height = Pixels::ZERO;
3904 let mut max_menu_height = Pixels::ZERO;
3905 let mut height_above_menu = Pixels::ZERO;
3906 let height_below_menu = Pixels::ZERO;
3907 let mut edit_prediction_popover_visible = false;
3908 let mut context_menu_visible = false;
3909 let context_menu_placement;
3910
3911 {
3912 let editor = self.editor.read(cx);
3913 if editor
3914 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
3915 {
3916 height_above_menu +=
3917 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3918 edit_prediction_popover_visible = true;
3919 }
3920
3921 if editor.context_menu_visible() {
3922 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3923 let (min_height_in_lines, max_height_in_lines) = editor
3924 .context_menu_options
3925 .as_ref()
3926 .map_or((3, 12), |options| {
3927 (options.min_entries_visible, options.max_entries_visible)
3928 });
3929
3930 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
3931 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
3932 context_menu_visible = true;
3933 }
3934 }
3935 context_menu_placement = editor
3936 .context_menu_options
3937 .as_ref()
3938 .and_then(|options| options.placement.clone());
3939 }
3940
3941 let visible = edit_prediction_popover_visible || context_menu_visible;
3942 if !visible {
3943 return None;
3944 }
3945
3946 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3947 let target_position = content_origin
3948 + gpui::Point {
3949 x: cmp::max(
3950 px(0.),
3951 cursor_row_layout.x_for_index(cursor.column() as usize)
3952 - scroll_pixel_position.x,
3953 ),
3954 y: cmp::max(
3955 px(0.),
3956 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3957 ),
3958 };
3959
3960 let viewport_bounds =
3961 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3962 right: -right_margin - MENU_GAP,
3963 ..Default::default()
3964 });
3965
3966 let min_height = height_above_menu + min_menu_height + height_below_menu;
3967 let max_height = height_above_menu + max_menu_height + height_below_menu;
3968 let (laid_out_popovers, y_flipped) = self.layout_popovers_above_or_below_line(
3969 target_position,
3970 line_height,
3971 min_height,
3972 max_height,
3973 context_menu_placement,
3974 text_hitbox,
3975 viewport_bounds,
3976 window,
3977 cx,
3978 |height, max_width_for_stable_x, y_flipped, window, cx| {
3979 // First layout the menu to get its size - others can be at least this wide.
3980 let context_menu = if context_menu_visible {
3981 let menu_height = if y_flipped {
3982 height - height_below_menu
3983 } else {
3984 height - height_above_menu
3985 };
3986 let mut element = self
3987 .render_context_menu(line_height, menu_height, window, cx)
3988 .expect("Visible context menu should always render.");
3989 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3990 Some((CursorPopoverType::CodeContextMenu, element, size))
3991 } else {
3992 None
3993 };
3994 let min_width = context_menu
3995 .as_ref()
3996 .map_or(px(0.), |(_, _, size)| size.width);
3997 let max_width = max_width_for_stable_x.max(
3998 context_menu
3999 .as_ref()
4000 .map_or(px(0.), |(_, _, size)| size.width),
4001 );
4002
4003 let edit_prediction = if edit_prediction_popover_visible {
4004 self.editor.update(cx, move |editor, cx| {
4005 let accept_binding =
4006 editor.accept_edit_prediction_keybind(false, window, cx);
4007 let mut element = editor.render_edit_prediction_cursor_popover(
4008 min_width,
4009 max_width,
4010 cursor_point,
4011 style,
4012 accept_binding.keystroke(),
4013 window,
4014 cx,
4015 )?;
4016 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4017 Some((CursorPopoverType::EditPrediction, element, size))
4018 })
4019 } else {
4020 None
4021 };
4022 vec![edit_prediction, context_menu]
4023 .into_iter()
4024 .flatten()
4025 .collect::<Vec<_>>()
4026 },
4027 )?;
4028
4029 let (menu_ix, (_, menu_bounds)) = laid_out_popovers
4030 .iter()
4031 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))?;
4032 let last_ix = laid_out_popovers.len() - 1;
4033 let menu_is_last = menu_ix == last_ix;
4034 let first_popover_bounds = laid_out_popovers[0].1;
4035 let last_popover_bounds = laid_out_popovers[last_ix].1;
4036
4037 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
4038 // right, and otherwise it goes below or to the right.
4039 let mut target_bounds = Bounds::from_corners(
4040 first_popover_bounds.origin,
4041 last_popover_bounds.bottom_right(),
4042 );
4043 target_bounds.size.width = menu_bounds.size.width;
4044
4045 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
4046 // based on this is preferred for layout stability.
4047 let mut max_target_bounds = target_bounds;
4048 max_target_bounds.size.height = max_height;
4049 if y_flipped {
4050 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
4051 }
4052
4053 // Add spacing around `target_bounds` and `max_target_bounds`.
4054 let mut extend_amount = Edges::all(MENU_GAP);
4055 if y_flipped {
4056 extend_amount.bottom = line_height;
4057 } else {
4058 extend_amount.top = line_height;
4059 }
4060 let target_bounds = target_bounds.extend(extend_amount);
4061 let max_target_bounds = max_target_bounds.extend(extend_amount);
4062
4063 let must_place_above_or_below =
4064 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
4065 laid_out_popovers[menu_ix + 1..]
4066 .iter()
4067 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
4068 } else {
4069 false
4070 };
4071
4072 let aside_bounds = self.layout_context_menu_aside(
4073 y_flipped,
4074 *menu_bounds,
4075 target_bounds,
4076 max_target_bounds,
4077 max_menu_height,
4078 must_place_above_or_below,
4079 text_hitbox,
4080 viewport_bounds,
4081 window,
4082 cx,
4083 );
4084
4085 if let Some(menu_bounds) = laid_out_popovers.iter().find_map(|(popover_type, bounds)| {
4086 if matches!(popover_type, CursorPopoverType::CodeContextMenu) {
4087 Some(*bounds)
4088 } else {
4089 None
4090 }
4091 }) {
4092 let bounds = if let Some(aside_bounds) = aside_bounds {
4093 menu_bounds.union(&aside_bounds)
4094 } else {
4095 menu_bounds
4096 };
4097 return Some(ContextMenuLayout { y_flipped, bounds });
4098 }
4099
4100 None
4101 }
4102
4103 fn layout_gutter_menu(
4104 &self,
4105 line_height: Pixels,
4106 text_hitbox: &Hitbox,
4107 content_origin: gpui::Point<Pixels>,
4108 right_margin: Pixels,
4109 scroll_pixel_position: gpui::Point<Pixels>,
4110 gutter_overshoot: Pixels,
4111 window: &mut Window,
4112 cx: &mut App,
4113 ) {
4114 let editor = self.editor.read(cx);
4115 if !editor.context_menu_visible() {
4116 return;
4117 }
4118 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
4119 editor.context_menu_origin()
4120 else {
4121 return;
4122 };
4123 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
4124 // indicator than just a plain first column of the text field.
4125 let target_position = content_origin
4126 + gpui::Point {
4127 x: -gutter_overshoot,
4128 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
4129 };
4130
4131 let (min_height_in_lines, max_height_in_lines) = editor
4132 .context_menu_options
4133 .as_ref()
4134 .map_or((3, 12), |options| {
4135 (options.min_entries_visible, options.max_entries_visible)
4136 });
4137
4138 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4139 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4140 let viewport_bounds =
4141 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4142 right: -right_margin - MENU_GAP,
4143 ..Default::default()
4144 });
4145 self.layout_popovers_above_or_below_line(
4146 target_position,
4147 line_height,
4148 min_height,
4149 max_height,
4150 editor
4151 .context_menu_options
4152 .as_ref()
4153 .and_then(|options| options.placement.clone()),
4154 text_hitbox,
4155 viewport_bounds,
4156 window,
4157 cx,
4158 move |height, _max_width_for_stable_x, _, window, cx| {
4159 let mut element = self
4160 .render_context_menu(line_height, height, window, cx)
4161 .expect("Visible context menu should always render.");
4162 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4163 vec![(CursorPopoverType::CodeContextMenu, element, size)]
4164 },
4165 );
4166 }
4167
4168 fn layout_popovers_above_or_below_line(
4169 &self,
4170 target_position: gpui::Point<Pixels>,
4171 line_height: Pixels,
4172 min_height: Pixels,
4173 max_height: Pixels,
4174 placement: Option<ContextMenuPlacement>,
4175 text_hitbox: &Hitbox,
4176 viewport_bounds: Bounds<Pixels>,
4177 window: &mut Window,
4178 cx: &mut App,
4179 make_sized_popovers: impl FnOnce(
4180 Pixels,
4181 Pixels,
4182 bool,
4183 &mut Window,
4184 &mut App,
4185 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
4186 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
4187 let text_style = TextStyleRefinement {
4188 line_height: Some(DefiniteLength::Fraction(
4189 BufferLineHeight::Comfortable.value(),
4190 )),
4191 ..Default::default()
4192 };
4193 window.with_text_style(Some(text_style), |window| {
4194 // If the max height won't fit below and there is more space above, put it above the line.
4195 let bottom_y_when_flipped = target_position.y - line_height;
4196 let available_above = bottom_y_when_flipped - text_hitbox.top();
4197 let available_below = text_hitbox.bottom() - target_position.y;
4198 let y_overflows_below = max_height > available_below;
4199 let mut y_flipped = match placement {
4200 Some(ContextMenuPlacement::Above) => true,
4201 Some(ContextMenuPlacement::Below) => false,
4202 None => y_overflows_below && available_above > available_below,
4203 };
4204 let mut height = cmp::min(
4205 max_height,
4206 if y_flipped {
4207 available_above
4208 } else {
4209 available_below
4210 },
4211 );
4212
4213 // If the min height doesn't fit within text bounds, instead fit within the window.
4214 if height < min_height {
4215 let available_above = bottom_y_when_flipped;
4216 let available_below = viewport_bounds.bottom() - target_position.y;
4217 let (y_flipped_override, height_override) = match placement {
4218 Some(ContextMenuPlacement::Above) => {
4219 (true, cmp::min(available_above, min_height))
4220 }
4221 Some(ContextMenuPlacement::Below) => {
4222 (false, cmp::min(available_below, min_height))
4223 }
4224 None => {
4225 if available_below > min_height {
4226 (false, min_height)
4227 } else if available_above > min_height {
4228 (true, min_height)
4229 } else if available_above > available_below {
4230 (true, available_above)
4231 } else {
4232 (false, available_below)
4233 }
4234 }
4235 };
4236 y_flipped = y_flipped_override;
4237 height = height_override;
4238 }
4239
4240 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
4241
4242 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
4243 // for very narrow windows.
4244 let popovers =
4245 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
4246 if popovers.is_empty() {
4247 return None;
4248 }
4249
4250 let max_width = popovers
4251 .iter()
4252 .map(|(_, _, size)| size.width)
4253 .max()
4254 .unwrap_or_default();
4255
4256 let mut current_position = gpui::Point {
4257 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
4258 // overflow. Include space for the scrollbar.
4259 x: target_position
4260 .x
4261 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
4262 y: if y_flipped {
4263 bottom_y_when_flipped
4264 } else {
4265 target_position.y
4266 },
4267 };
4268
4269 let mut laid_out_popovers = popovers
4270 .into_iter()
4271 .map(|(popover_type, element, size)| {
4272 if y_flipped {
4273 current_position.y -= size.height;
4274 }
4275 let position = current_position;
4276 window.defer_draw(element, current_position, 1);
4277 if !y_flipped {
4278 current_position.y += size.height + MENU_GAP;
4279 } else {
4280 current_position.y -= MENU_GAP;
4281 }
4282 (popover_type, Bounds::new(position, size))
4283 })
4284 .collect::<Vec<_>>();
4285
4286 if y_flipped {
4287 laid_out_popovers.reverse();
4288 }
4289
4290 Some((laid_out_popovers, y_flipped))
4291 })
4292 }
4293
4294 fn layout_context_menu_aside(
4295 &self,
4296 y_flipped: bool,
4297 menu_bounds: Bounds<Pixels>,
4298 target_bounds: Bounds<Pixels>,
4299 max_target_bounds: Bounds<Pixels>,
4300 max_height: Pixels,
4301 must_place_above_or_below: bool,
4302 text_hitbox: &Hitbox,
4303 viewport_bounds: Bounds<Pixels>,
4304 window: &mut Window,
4305 cx: &mut App,
4306 ) -> Option<Bounds<Pixels>> {
4307 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
4308 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
4309 && !must_place_above_or_below
4310 {
4311 let max_width = cmp::min(
4312 available_within_viewport.right - px(1.),
4313 MENU_ASIDE_MAX_WIDTH,
4314 );
4315 let mut aside = self.render_context_menu_aside(
4316 size(max_width, max_height - POPOVER_Y_PADDING),
4317 window,
4318 cx,
4319 )?;
4320 let size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
4321 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
4322 Some((aside, right_position, size))
4323 } else {
4324 let max_size = size(
4325 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
4326 // won't be needed here.
4327 cmp::min(
4328 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
4329 viewport_bounds.right(),
4330 ),
4331 cmp::min(
4332 max_height,
4333 cmp::max(
4334 available_within_viewport.top,
4335 available_within_viewport.bottom,
4336 ),
4337 ) - POPOVER_Y_PADDING,
4338 );
4339 let mut aside = self.render_context_menu_aside(max_size, window, cx)?;
4340 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
4341
4342 let top_position = point(
4343 menu_bounds.origin.x,
4344 target_bounds.top() - actual_size.height,
4345 );
4346 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
4347
4348 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
4349 // Prefer to fit on the same side of the line as the menu, then on the other side of
4350 // the line.
4351 if !y_flipped && wanted.height < available.bottom {
4352 Some(bottom_position)
4353 } else if !y_flipped && wanted.height < available.top {
4354 Some(top_position)
4355 } else if y_flipped && wanted.height < available.top {
4356 Some(top_position)
4357 } else if y_flipped && wanted.height < available.bottom {
4358 Some(bottom_position)
4359 } else {
4360 None
4361 }
4362 };
4363
4364 // Prefer choosing a direction using max sizes rather than actual size for stability.
4365 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
4366 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
4367 let aside_position = fit_within(available_within_text, wanted)
4368 // Fallback: fit max size in window.
4369 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
4370 // Fallback: fit actual size in window.
4371 .or_else(|| fit_within(available_within_viewport, actual_size));
4372
4373 aside_position.map(|position| (aside, position, actual_size))
4374 };
4375
4376 // Skip drawing if it doesn't fit anywhere.
4377 if let Some((aside, position, size)) = positioned_aside {
4378 let aside_bounds = Bounds::new(position, size);
4379 window.defer_draw(aside, position, 2);
4380 return Some(aside_bounds);
4381 }
4382
4383 None
4384 }
4385
4386 fn render_context_menu(
4387 &self,
4388 line_height: Pixels,
4389 height: Pixels,
4390 window: &mut Window,
4391 cx: &mut App,
4392 ) -> Option<AnyElement> {
4393 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
4394 self.editor.update(cx, |editor, cx| {
4395 editor.render_context_menu(&self.style, max_height_in_lines, window, cx)
4396 })
4397 }
4398
4399 fn render_context_menu_aside(
4400 &self,
4401 max_size: Size<Pixels>,
4402 window: &mut Window,
4403 cx: &mut App,
4404 ) -> Option<AnyElement> {
4405 if max_size.width < px(100.) || max_size.height < px(12.) {
4406 None
4407 } else {
4408 self.editor.update(cx, |editor, cx| {
4409 editor.render_context_menu_aside(max_size, window, cx)
4410 })
4411 }
4412 }
4413
4414 fn layout_mouse_context_menu(
4415 &self,
4416 editor_snapshot: &EditorSnapshot,
4417 visible_range: Range<DisplayRow>,
4418 content_origin: gpui::Point<Pixels>,
4419 window: &mut Window,
4420 cx: &mut App,
4421 ) -> Option<AnyElement> {
4422 let position = self.editor.update(cx, |editor, _cx| {
4423 let visible_start_point = editor.display_to_pixel_point(
4424 DisplayPoint::new(visible_range.start, 0),
4425 editor_snapshot,
4426 window,
4427 )?;
4428 let visible_end_point = editor.display_to_pixel_point(
4429 DisplayPoint::new(visible_range.end, 0),
4430 editor_snapshot,
4431 window,
4432 )?;
4433
4434 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
4435 let (source_display_point, position) = match mouse_context_menu.position {
4436 MenuPosition::PinnedToScreen(point) => (None, point),
4437 MenuPosition::PinnedToEditor { source, offset } => {
4438 let source_display_point = source.to_display_point(editor_snapshot);
4439 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
4440 let position = content_origin + source_point + offset;
4441 (Some(source_display_point), position)
4442 }
4443 };
4444
4445 let source_included = source_display_point.map_or(true, |source_display_point| {
4446 visible_range
4447 .to_inclusive()
4448 .contains(&source_display_point.row())
4449 });
4450 let position_included =
4451 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
4452 if !source_included && !position_included {
4453 None
4454 } else {
4455 Some(position)
4456 }
4457 })?;
4458
4459 let text_style = TextStyleRefinement {
4460 line_height: Some(DefiniteLength::Fraction(
4461 BufferLineHeight::Comfortable.value(),
4462 )),
4463 ..Default::default()
4464 };
4465 window.with_text_style(Some(text_style), |window| {
4466 let mut element = self.editor.read_with(cx, |editor, _| {
4467 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
4468 let context_menu = mouse_context_menu.context_menu.clone();
4469
4470 Some(
4471 deferred(
4472 anchored()
4473 .position(position)
4474 .child(context_menu)
4475 .anchor(Corner::TopLeft)
4476 .snap_to_window_with_margin(px(8.)),
4477 )
4478 .with_priority(1)
4479 .into_any(),
4480 )
4481 })?;
4482
4483 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
4484 Some(element)
4485 })
4486 }
4487
4488 fn layout_hover_popovers(
4489 &self,
4490 snapshot: &EditorSnapshot,
4491 hitbox: &Hitbox,
4492 visible_display_row_range: Range<DisplayRow>,
4493 content_origin: gpui::Point<Pixels>,
4494 scroll_pixel_position: gpui::Point<Pixels>,
4495 line_layouts: &[LineWithInvisibles],
4496 line_height: Pixels,
4497 em_width: Pixels,
4498 context_menu_layout: Option<ContextMenuLayout>,
4499 window: &mut Window,
4500 cx: &mut App,
4501 ) {
4502 struct MeasuredHoverPopover {
4503 element: AnyElement,
4504 size: Size<Pixels>,
4505 horizontal_offset: Pixels,
4506 }
4507
4508 let max_size = size(
4509 (120. * em_width) // Default size
4510 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4511 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4512 (16. * line_height) // Default size
4513 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4514 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4515 );
4516
4517 let hover_popovers = self.editor.update(cx, |editor, cx| {
4518 editor.hover_state.render(
4519 snapshot,
4520 visible_display_row_range.clone(),
4521 max_size,
4522 window,
4523 cx,
4524 )
4525 });
4526 let Some((position, hover_popovers)) = hover_popovers else {
4527 return;
4528 };
4529
4530 // This is safe because we check on layout whether the required row is available
4531 let hovered_row_layout =
4532 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
4533
4534 // Compute Hovered Point
4535 let x =
4536 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
4537 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
4538 let hovered_point = content_origin + point(x, y);
4539
4540 let mut overall_height = Pixels::ZERO;
4541 let mut measured_hover_popovers = Vec::new();
4542 for (position, mut hover_popover) in hover_popovers.into_iter().with_position() {
4543 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
4544 let horizontal_offset =
4545 (hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
4546 .min(Pixels::ZERO);
4547 match position {
4548 itertools::Position::Middle | itertools::Position::Last => {
4549 overall_height += HOVER_POPOVER_GAP
4550 }
4551 _ => {}
4552 }
4553 overall_height += size.height;
4554 measured_hover_popovers.push(MeasuredHoverPopover {
4555 element: hover_popover,
4556 size,
4557 horizontal_offset,
4558 });
4559 }
4560
4561 fn draw_occluder(
4562 width: Pixels,
4563 origin: gpui::Point<Pixels>,
4564 window: &mut Window,
4565 cx: &mut App,
4566 ) {
4567 let mut occlusion = div()
4568 .size_full()
4569 .occlude()
4570 .on_mouse_move(|_, _, cx| cx.stop_propagation())
4571 .into_any_element();
4572 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
4573 window.defer_draw(occlusion, origin, 2);
4574 }
4575
4576 fn place_popovers_above(
4577 hovered_point: gpui::Point<Pixels>,
4578 measured_hover_popovers: Vec<MeasuredHoverPopover>,
4579 window: &mut Window,
4580 cx: &mut App,
4581 ) {
4582 let mut current_y = hovered_point.y;
4583 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4584 let size = popover.size;
4585 let popover_origin = point(
4586 hovered_point.x + popover.horizontal_offset,
4587 current_y - size.height,
4588 );
4589
4590 window.defer_draw(popover.element, popover_origin, 2);
4591 if position != itertools::Position::Last {
4592 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
4593 draw_occluder(size.width, origin, window, cx);
4594 }
4595
4596 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4597 }
4598 }
4599
4600 fn place_popovers_below(
4601 hovered_point: gpui::Point<Pixels>,
4602 measured_hover_popovers: Vec<MeasuredHoverPopover>,
4603 line_height: Pixels,
4604 window: &mut Window,
4605 cx: &mut App,
4606 ) {
4607 let mut current_y = hovered_point.y + line_height;
4608 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4609 let size = popover.size;
4610 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4611
4612 window.defer_draw(popover.element, popover_origin, 2);
4613 if position != itertools::Position::Last {
4614 let origin = point(popover_origin.x, popover_origin.y + size.height);
4615 draw_occluder(size.width, origin, window, cx);
4616 }
4617
4618 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4619 }
4620 }
4621
4622 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
4623 context_menu_layout
4624 .as_ref()
4625 .map_or(false, |menu| bounds.intersects(&menu.bounds))
4626 };
4627
4628 let can_place_above = {
4629 let mut bounds_above = Vec::new();
4630 let mut current_y = hovered_point.y;
4631 for popover in &measured_hover_popovers {
4632 let size = popover.size;
4633 let popover_origin = point(
4634 hovered_point.x + popover.horizontal_offset,
4635 current_y - size.height,
4636 );
4637 bounds_above.push(Bounds::new(popover_origin, size));
4638 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4639 }
4640 bounds_above
4641 .iter()
4642 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
4643 };
4644
4645 let can_place_below = || {
4646 let mut bounds_below = Vec::new();
4647 let mut current_y = hovered_point.y + line_height;
4648 for popover in &measured_hover_popovers {
4649 let size = popover.size;
4650 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4651 bounds_below.push(Bounds::new(popover_origin, size));
4652 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4653 }
4654 bounds_below
4655 .iter()
4656 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
4657 };
4658
4659 if can_place_above {
4660 // try placing above hovered point
4661 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
4662 } else if can_place_below() {
4663 // try placing below hovered point
4664 place_popovers_below(
4665 hovered_point,
4666 measured_hover_popovers,
4667 line_height,
4668 window,
4669 cx,
4670 );
4671 } else {
4672 // try to place popovers around the context menu
4673 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
4674 let total_width = measured_hover_popovers
4675 .iter()
4676 .map(|p| p.size.width)
4677 .max()
4678 .unwrap_or(Pixels::ZERO);
4679 let y_for_horizontal_positioning = if menu.y_flipped {
4680 menu.bounds.bottom() - overall_height
4681 } else {
4682 menu.bounds.top()
4683 };
4684 let possible_origins = vec![
4685 // left of context menu
4686 point(
4687 menu.bounds.left() - total_width - HOVER_POPOVER_GAP,
4688 y_for_horizontal_positioning,
4689 ),
4690 // right of context menu
4691 point(
4692 menu.bounds.right() + HOVER_POPOVER_GAP,
4693 y_for_horizontal_positioning,
4694 ),
4695 // top of context menu
4696 point(
4697 menu.bounds.left(),
4698 menu.bounds.top() - overall_height - HOVER_POPOVER_GAP,
4699 ),
4700 // bottom of context menu
4701 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
4702 ];
4703 possible_origins.into_iter().find(|&origin| {
4704 Bounds::new(origin, size(total_width, overall_height))
4705 .is_contained_within(hitbox)
4706 })
4707 });
4708 if let Some(origin) = origin_surrounding_menu {
4709 let mut current_y = origin.y;
4710 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4711 let size = popover.size;
4712 let popover_origin = point(origin.x, current_y);
4713
4714 window.defer_draw(popover.element, popover_origin, 2);
4715 if position != itertools::Position::Last {
4716 let origin = point(popover_origin.x, popover_origin.y + size.height);
4717 draw_occluder(size.width, origin, window, cx);
4718 }
4719
4720 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4721 }
4722 } else {
4723 // fallback to existing above/below cursor logic
4724 // this might overlap menu or overflow in rare case
4725 if can_place_above {
4726 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
4727 } else {
4728 place_popovers_below(
4729 hovered_point,
4730 measured_hover_popovers,
4731 line_height,
4732 window,
4733 cx,
4734 );
4735 }
4736 }
4737 }
4738 }
4739
4740 fn layout_diff_hunk_controls(
4741 &self,
4742 row_range: Range<DisplayRow>,
4743 row_infos: &[RowInfo],
4744 text_hitbox: &Hitbox,
4745 position_map: &PositionMap,
4746 newest_cursor_position: Option<DisplayPoint>,
4747 line_height: Pixels,
4748 right_margin: Pixels,
4749 scroll_pixel_position: gpui::Point<Pixels>,
4750 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
4751 highlighted_rows: &BTreeMap<DisplayRow, LineHighlight>,
4752 editor: Entity<Editor>,
4753 window: &mut Window,
4754 cx: &mut App,
4755 ) -> Vec<AnyElement> {
4756 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
4757 let point_for_position = position_map.point_for_position(window.mouse_position());
4758
4759 let mut controls = vec![];
4760
4761 let active_positions = [
4762 Some(point_for_position.previous_valid),
4763 newest_cursor_position,
4764 ];
4765
4766 for (hunk, _) in display_hunks {
4767 if let DisplayDiffHunk::Unfolded {
4768 display_row_range,
4769 multi_buffer_range,
4770 status,
4771 is_created_file,
4772 ..
4773 } = &hunk
4774 {
4775 if display_row_range.start < row_range.start
4776 || display_row_range.start >= row_range.end
4777 {
4778 continue;
4779 }
4780 if highlighted_rows
4781 .get(&display_row_range.start)
4782 .and_then(|highlight| highlight.type_id)
4783 .is_some_and(|type_id| {
4784 [
4785 TypeId::of::<ConflictsOuter>(),
4786 TypeId::of::<ConflictsOursMarker>(),
4787 TypeId::of::<ConflictsOurs>(),
4788 TypeId::of::<ConflictsTheirs>(),
4789 TypeId::of::<ConflictsTheirsMarker>(),
4790 ]
4791 .contains(&type_id)
4792 })
4793 {
4794 continue;
4795 }
4796 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4797 if row_infos[row_ix].diff_status.is_none() {
4798 continue;
4799 }
4800 if row_infos[row_ix]
4801 .diff_status
4802 .is_some_and(|status| status.is_added())
4803 && !status.is_added()
4804 {
4805 continue;
4806 }
4807 if active_positions
4808 .iter()
4809 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4810 {
4811 let y = display_row_range.start.as_f32() * line_height
4812 + text_hitbox.bounds.top()
4813 - scroll_pixel_position.y;
4814
4815 let mut element = render_diff_hunk_controls(
4816 display_row_range.start.0,
4817 status,
4818 multi_buffer_range.clone(),
4819 *is_created_file,
4820 line_height,
4821 &editor,
4822 window,
4823 cx,
4824 );
4825 let size =
4826 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
4827
4828 let x = text_hitbox.bounds.right() - right_margin - px(10.) - size.width;
4829
4830 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
4831 element.prepaint(window, cx)
4832 });
4833 controls.push(element);
4834 }
4835 }
4836 }
4837
4838 controls
4839 }
4840
4841 fn layout_signature_help(
4842 &self,
4843 hitbox: &Hitbox,
4844 content_origin: gpui::Point<Pixels>,
4845 scroll_pixel_position: gpui::Point<Pixels>,
4846 newest_selection_head: Option<DisplayPoint>,
4847 start_row: DisplayRow,
4848 line_layouts: &[LineWithInvisibles],
4849 line_height: Pixels,
4850 em_width: Pixels,
4851 context_menu_layout: Option<ContextMenuLayout>,
4852 window: &mut Window,
4853 cx: &mut App,
4854 ) {
4855 if !self.editor.focus_handle(cx).is_focused(window) {
4856 return;
4857 }
4858 let Some(newest_selection_head) = newest_selection_head else {
4859 return;
4860 };
4861
4862 let max_size = size(
4863 (120. * em_width) // Default size
4864 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4865 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4866 (16. * line_height) // Default size
4867 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4868 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4869 );
4870
4871 let maybe_element = self.editor.update(cx, |editor, cx| {
4872 if let Some(popover) = editor.signature_help_state.popover_mut() {
4873 let element = popover.render(max_size, cx);
4874 Some(element)
4875 } else {
4876 None
4877 }
4878 });
4879 let Some(mut element) = maybe_element else {
4880 return;
4881 };
4882
4883 let selection_row = newest_selection_head.row();
4884 let Some(cursor_row_layout) = (selection_row >= start_row)
4885 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
4886 .flatten()
4887 else {
4888 return;
4889 };
4890
4891 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4892 - scroll_pixel_position.x;
4893 let target_y = selection_row.as_f32() * line_height - scroll_pixel_position.y;
4894 let target_point = content_origin + point(target_x, target_y);
4895
4896 let actual_size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4897
4898 let (popover_bounds_above, popover_bounds_below) = {
4899 let horizontal_offset = (hitbox.top_right().x
4900 - POPOVER_RIGHT_OFFSET
4901 - (target_point.x + actual_size.width))
4902 .min(Pixels::ZERO);
4903 let initial_x = target_point.x + horizontal_offset;
4904 (
4905 Bounds::new(
4906 point(initial_x, target_point.y - actual_size.height),
4907 actual_size,
4908 ),
4909 Bounds::new(
4910 point(initial_x, target_point.y + line_height + HOVER_POPOVER_GAP),
4911 actual_size,
4912 ),
4913 )
4914 };
4915
4916 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
4917 context_menu_layout
4918 .as_ref()
4919 .map_or(false, |menu| bounds.intersects(&menu.bounds))
4920 };
4921
4922 let final_origin = if popover_bounds_above.is_contained_within(hitbox)
4923 && !intersects_menu(popover_bounds_above)
4924 {
4925 // try placing above cursor
4926 popover_bounds_above.origin
4927 } else if popover_bounds_below.is_contained_within(hitbox)
4928 && !intersects_menu(popover_bounds_below)
4929 {
4930 // try placing below cursor
4931 popover_bounds_below.origin
4932 } else {
4933 // try surrounding context menu if exists
4934 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
4935 let y_for_horizontal_positioning = if menu.y_flipped {
4936 menu.bounds.bottom() - actual_size.height
4937 } else {
4938 menu.bounds.top()
4939 };
4940 let possible_origins = vec![
4941 // left of context menu
4942 point(
4943 menu.bounds.left() - actual_size.width - HOVER_POPOVER_GAP,
4944 y_for_horizontal_positioning,
4945 ),
4946 // right of context menu
4947 point(
4948 menu.bounds.right() + HOVER_POPOVER_GAP,
4949 y_for_horizontal_positioning,
4950 ),
4951 // top of context menu
4952 point(
4953 menu.bounds.left(),
4954 menu.bounds.top() - actual_size.height - HOVER_POPOVER_GAP,
4955 ),
4956 // bottom of context menu
4957 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
4958 ];
4959 possible_origins
4960 .into_iter()
4961 .find(|&origin| Bounds::new(origin, actual_size).is_contained_within(hitbox))
4962 });
4963 origin_surrounding_menu.unwrap_or_else(|| {
4964 // fallback to existing above/below cursor logic
4965 // this might overlap menu or overflow in rare case
4966 if popover_bounds_above.is_contained_within(hitbox) {
4967 popover_bounds_above.origin
4968 } else {
4969 popover_bounds_below.origin
4970 }
4971 })
4972 };
4973
4974 window.defer_draw(element, final_origin, 2);
4975 }
4976
4977 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4978 window.paint_layer(layout.hitbox.bounds, |window| {
4979 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4980 let gutter_bg = cx.theme().colors().editor_gutter_background;
4981 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4982 window.paint_quad(fill(
4983 layout.position_map.text_hitbox.bounds,
4984 self.style.background,
4985 ));
4986
4987 if matches!(
4988 layout.mode,
4989 EditorMode::Full { .. } | EditorMode::Minimap { .. }
4990 ) {
4991 let show_active_line_background = match layout.mode {
4992 EditorMode::Full {
4993 show_active_line_background,
4994 ..
4995 } => show_active_line_background,
4996 EditorMode::Minimap { .. } => true,
4997 _ => false,
4998 };
4999 let mut active_rows = layout.active_rows.iter().peekable();
5000 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
5001 let mut end_row = start_row.0;
5002 while active_rows
5003 .peek()
5004 .map_or(false, |(active_row, has_selection)| {
5005 active_row.0 == end_row + 1
5006 && has_selection.selection == contains_non_empty_selection.selection
5007 })
5008 {
5009 active_rows.next().unwrap();
5010 end_row += 1;
5011 }
5012
5013 if show_active_line_background && !contains_non_empty_selection.selection {
5014 let highlight_h_range =
5015 match layout.position_map.snapshot.current_line_highlight {
5016 CurrentLineHighlight::Gutter => Some(Range {
5017 start: layout.hitbox.left(),
5018 end: layout.gutter_hitbox.right(),
5019 }),
5020 CurrentLineHighlight::Line => Some(Range {
5021 start: layout.position_map.text_hitbox.bounds.left(),
5022 end: layout.position_map.text_hitbox.bounds.right(),
5023 }),
5024 CurrentLineHighlight::All => Some(Range {
5025 start: layout.hitbox.left(),
5026 end: layout.hitbox.right(),
5027 }),
5028 CurrentLineHighlight::None => None,
5029 };
5030 if let Some(range) = highlight_h_range {
5031 let active_line_bg = cx.theme().colors().editor_active_line_background;
5032 let bounds = Bounds {
5033 origin: point(
5034 range.start,
5035 layout.hitbox.origin.y
5036 + (start_row.as_f32() - scroll_top)
5037 * layout.position_map.line_height,
5038 ),
5039 size: size(
5040 range.end - range.start,
5041 layout.position_map.line_height
5042 * (end_row - start_row.0 + 1) as f32,
5043 ),
5044 };
5045 window.paint_quad(fill(bounds, active_line_bg));
5046 }
5047 }
5048 }
5049
5050 let mut paint_highlight = |highlight_row_start: DisplayRow,
5051 highlight_row_end: DisplayRow,
5052 highlight: crate::LineHighlight,
5053 edges| {
5054 let mut origin_x = layout.hitbox.left();
5055 let mut width = layout.hitbox.size.width;
5056 if !highlight.include_gutter {
5057 origin_x += layout.gutter_hitbox.size.width;
5058 width -= layout.gutter_hitbox.size.width;
5059 }
5060
5061 let origin = point(
5062 origin_x,
5063 layout.hitbox.origin.y
5064 + (highlight_row_start.as_f32() - scroll_top)
5065 * layout.position_map.line_height,
5066 );
5067 let size = size(
5068 width,
5069 layout.position_map.line_height
5070 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
5071 );
5072 let mut quad = fill(Bounds { origin, size }, highlight.background);
5073 if let Some(border_color) = highlight.border {
5074 quad.border_color = border_color;
5075 quad.border_widths = edges
5076 }
5077 window.paint_quad(quad);
5078 };
5079
5080 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
5081 None;
5082 for (&new_row, &new_background) in &layout.highlighted_rows {
5083 match &mut current_paint {
5084 &mut Some((current_background, ref mut current_range, mut edges)) => {
5085 let new_range_started = current_background != new_background
5086 || current_range.end.next_row() != new_row;
5087 if new_range_started {
5088 if current_range.end.next_row() == new_row {
5089 edges.bottom = px(0.);
5090 };
5091 paint_highlight(
5092 current_range.start,
5093 current_range.end,
5094 current_background,
5095 edges,
5096 );
5097 let edges = Edges {
5098 top: if current_range.end.next_row() != new_row {
5099 px(1.)
5100 } else {
5101 px(0.)
5102 },
5103 bottom: px(1.),
5104 ..Default::default()
5105 };
5106 current_paint = Some((new_background, new_row..new_row, edges));
5107 continue;
5108 } else {
5109 current_range.end = current_range.end.next_row();
5110 }
5111 }
5112 None => {
5113 let edges = Edges {
5114 top: px(1.),
5115 bottom: px(1.),
5116 ..Default::default()
5117 };
5118 current_paint = Some((new_background, new_row..new_row, edges))
5119 }
5120 };
5121 }
5122 if let Some((color, range, edges)) = current_paint {
5123 paint_highlight(range.start, range.end, color, edges);
5124 }
5125
5126 let scroll_left =
5127 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
5128
5129 for (wrap_position, active) in layout.wrap_guides.iter() {
5130 let x = (layout.position_map.text_hitbox.origin.x
5131 + *wrap_position
5132 + layout.position_map.em_width / 2.)
5133 - scroll_left;
5134
5135 let show_scrollbars = layout
5136 .scrollbars_layout
5137 .as_ref()
5138 .map_or(false, |layout| layout.visible);
5139
5140 if x < layout.position_map.text_hitbox.origin.x
5141 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
5142 {
5143 continue;
5144 }
5145
5146 let color = if *active {
5147 cx.theme().colors().editor_active_wrap_guide
5148 } else {
5149 cx.theme().colors().editor_wrap_guide
5150 };
5151 window.paint_quad(fill(
5152 Bounds {
5153 origin: point(x, layout.position_map.text_hitbox.origin.y),
5154 size: size(px(1.), layout.position_map.text_hitbox.size.height),
5155 },
5156 color,
5157 ));
5158 }
5159 }
5160 })
5161 }
5162
5163 fn paint_indent_guides(
5164 &mut self,
5165 layout: &mut EditorLayout,
5166 window: &mut Window,
5167 cx: &mut App,
5168 ) {
5169 let Some(indent_guides) = &layout.indent_guides else {
5170 return;
5171 };
5172
5173 let faded_color = |color: Hsla, alpha: f32| {
5174 let mut faded = color;
5175 faded.a = alpha;
5176 faded
5177 };
5178
5179 for indent_guide in indent_guides {
5180 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
5181 let settings = indent_guide.settings;
5182
5183 // TODO fixed for now, expose them through themes later
5184 const INDENT_AWARE_ALPHA: f32 = 0.2;
5185 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
5186 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
5187 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
5188
5189 let line_color = match (settings.coloring, indent_guide.active) {
5190 (IndentGuideColoring::Disabled, _) => None,
5191 (IndentGuideColoring::Fixed, false) => {
5192 Some(cx.theme().colors().editor_indent_guide)
5193 }
5194 (IndentGuideColoring::Fixed, true) => {
5195 Some(cx.theme().colors().editor_indent_guide_active)
5196 }
5197 (IndentGuideColoring::IndentAware, false) => {
5198 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
5199 }
5200 (IndentGuideColoring::IndentAware, true) => {
5201 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
5202 }
5203 };
5204
5205 let background_color = match (settings.background_coloring, indent_guide.active) {
5206 (IndentGuideBackgroundColoring::Disabled, _) => None,
5207 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
5208 indent_accent_colors,
5209 INDENT_AWARE_BACKGROUND_ALPHA,
5210 )),
5211 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
5212 indent_accent_colors,
5213 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
5214 )),
5215 };
5216
5217 let requested_line_width = if indent_guide.active {
5218 settings.active_line_width
5219 } else {
5220 settings.line_width
5221 }
5222 .clamp(1, 10);
5223 let mut line_indicator_width = 0.;
5224 if let Some(color) = line_color {
5225 window.paint_quad(fill(
5226 Bounds {
5227 origin: indent_guide.origin,
5228 size: size(px(requested_line_width as f32), indent_guide.length),
5229 },
5230 color,
5231 ));
5232 line_indicator_width = requested_line_width as f32;
5233 }
5234
5235 if let Some(color) = background_color {
5236 let width = indent_guide.single_indent_width - px(line_indicator_width);
5237 window.paint_quad(fill(
5238 Bounds {
5239 origin: point(
5240 indent_guide.origin.x + px(line_indicator_width),
5241 indent_guide.origin.y,
5242 ),
5243 size: size(width, indent_guide.length),
5244 },
5245 color,
5246 ));
5247 }
5248 }
5249 }
5250
5251 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5252 let is_singleton = self.editor.read(cx).is_singleton(cx);
5253
5254 let line_height = layout.position_map.line_height;
5255 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
5256
5257 for LineNumberLayout {
5258 shaped_line,
5259 hitbox,
5260 } in layout.line_numbers.values()
5261 {
5262 let Some(hitbox) = hitbox else {
5263 continue;
5264 };
5265
5266 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
5267 let color = cx.theme().colors().editor_hover_line_number;
5268
5269 let line = self.shape_line_number(shaped_line.text.clone(), color, window);
5270 line.paint(hitbox.origin, line_height, window, cx).log_err()
5271 } else {
5272 shaped_line
5273 .paint(hitbox.origin, line_height, window, cx)
5274 .log_err()
5275 }) else {
5276 continue;
5277 };
5278
5279 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
5280 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
5281 if is_singleton {
5282 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
5283 } else {
5284 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
5285 }
5286 }
5287 }
5288
5289 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5290 if layout.display_hunks.is_empty() {
5291 return;
5292 }
5293
5294 let line_height = layout.position_map.line_height;
5295 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5296 for (hunk, hitbox) in &layout.display_hunks {
5297 let hunk_to_paint = match hunk {
5298 DisplayDiffHunk::Folded { .. } => {
5299 let hunk_bounds = Self::diff_hunk_bounds(
5300 &layout.position_map.snapshot,
5301 line_height,
5302 layout.gutter_hitbox.bounds,
5303 &hunk,
5304 );
5305 Some((
5306 hunk_bounds,
5307 cx.theme().colors().version_control_modified,
5308 Corners::all(px(0.)),
5309 DiffHunkStatus::modified_none(),
5310 ))
5311 }
5312 DisplayDiffHunk::Unfolded {
5313 status,
5314 display_row_range,
5315 ..
5316 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
5317 DiffHunkStatusKind::Added => (
5318 hunk_hitbox.bounds,
5319 cx.theme().colors().version_control_added,
5320 Corners::all(px(0.)),
5321 *status,
5322 ),
5323 DiffHunkStatusKind::Modified => (
5324 hunk_hitbox.bounds,
5325 cx.theme().colors().version_control_modified,
5326 Corners::all(px(0.)),
5327 *status,
5328 ),
5329 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
5330 hunk_hitbox.bounds,
5331 cx.theme().colors().version_control_deleted,
5332 Corners::all(px(0.)),
5333 *status,
5334 ),
5335 DiffHunkStatusKind::Deleted => (
5336 Bounds::new(
5337 point(
5338 hunk_hitbox.origin.x - hunk_hitbox.size.width,
5339 hunk_hitbox.origin.y,
5340 ),
5341 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
5342 ),
5343 cx.theme().colors().version_control_deleted,
5344 Corners::all(1. * line_height),
5345 *status,
5346 ),
5347 }),
5348 };
5349
5350 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
5351 // Flatten the background color with the editor color to prevent
5352 // elements below transparent hunks from showing through
5353 let flattened_background_color = cx
5354 .theme()
5355 .colors()
5356 .editor_background
5357 .blend(background_color);
5358
5359 if !Self::diff_hunk_hollow(status, cx) {
5360 window.paint_quad(quad(
5361 hunk_bounds,
5362 corner_radii,
5363 flattened_background_color,
5364 Edges::default(),
5365 transparent_black(),
5366 BorderStyle::default(),
5367 ));
5368 } else {
5369 let flattened_unstaged_background_color = cx
5370 .theme()
5371 .colors()
5372 .editor_background
5373 .blend(background_color.opacity(0.3));
5374
5375 window.paint_quad(quad(
5376 hunk_bounds,
5377 corner_radii,
5378 flattened_unstaged_background_color,
5379 Edges::all(Pixels(1.0)),
5380 flattened_background_color,
5381 BorderStyle::Solid,
5382 ));
5383 }
5384 }
5385 }
5386 });
5387 }
5388
5389 fn gutter_strip_width(line_height: Pixels) -> Pixels {
5390 (0.275 * line_height).floor()
5391 }
5392
5393 fn diff_hunk_bounds(
5394 snapshot: &EditorSnapshot,
5395 line_height: Pixels,
5396 gutter_bounds: Bounds<Pixels>,
5397 hunk: &DisplayDiffHunk,
5398 ) -> Bounds<Pixels> {
5399 let scroll_position = snapshot.scroll_position();
5400 let scroll_top = scroll_position.y * line_height;
5401 let gutter_strip_width = Self::gutter_strip_width(line_height);
5402
5403 match hunk {
5404 DisplayDiffHunk::Folded { display_row, .. } => {
5405 let start_y = display_row.as_f32() * line_height - scroll_top;
5406 let end_y = start_y + line_height;
5407 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5408 let highlight_size = size(gutter_strip_width, end_y - start_y);
5409 Bounds::new(highlight_origin, highlight_size)
5410 }
5411 DisplayDiffHunk::Unfolded {
5412 display_row_range,
5413 status,
5414 ..
5415 } => {
5416 if status.is_deleted() && display_row_range.is_empty() {
5417 let row = display_row_range.start;
5418
5419 let offset = line_height / 2.;
5420 let start_y = row.as_f32() * line_height - offset - scroll_top;
5421 let end_y = start_y + line_height;
5422
5423 let width = (0.35 * line_height).floor();
5424 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5425 let highlight_size = size(width, end_y - start_y);
5426 Bounds::new(highlight_origin, highlight_size)
5427 } else {
5428 let start_row = display_row_range.start;
5429 let end_row = display_row_range.end;
5430 // If we're in a multibuffer, row range span might include an
5431 // excerpt header, so if we were to draw the marker straight away,
5432 // the hunk might include the rows of that header.
5433 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
5434 // Instead, we simply check whether the range we're dealing with includes
5435 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
5436 let end_row_in_current_excerpt = snapshot
5437 .blocks_in_range(start_row..end_row)
5438 .find_map(|(start_row, block)| {
5439 if matches!(block, Block::ExcerptBoundary { .. }) {
5440 Some(start_row)
5441 } else {
5442 None
5443 }
5444 })
5445 .unwrap_or(end_row);
5446
5447 let start_y = start_row.as_f32() * line_height - scroll_top;
5448 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
5449
5450 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5451 let highlight_size = size(gutter_strip_width, end_y - start_y);
5452 Bounds::new(highlight_origin, highlight_size)
5453 }
5454 }
5455 }
5456 }
5457
5458 fn paint_gutter_indicators(
5459 &self,
5460 layout: &mut EditorLayout,
5461 window: &mut Window,
5462 cx: &mut App,
5463 ) {
5464 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5465 window.with_element_namespace("crease_toggles", |window| {
5466 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
5467 crease_toggle.paint(window, cx);
5468 }
5469 });
5470
5471 window.with_element_namespace("expand_toggles", |window| {
5472 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
5473 expand_toggle.paint(window, cx);
5474 }
5475 });
5476
5477 for breakpoint in layout.breakpoints.iter_mut() {
5478 breakpoint.paint(window, cx);
5479 }
5480
5481 for test_indicator in layout.test_indicators.iter_mut() {
5482 test_indicator.paint(window, cx);
5483 }
5484 });
5485 }
5486
5487 fn paint_gutter_highlights(
5488 &self,
5489 layout: &mut EditorLayout,
5490 window: &mut Window,
5491 cx: &mut App,
5492 ) {
5493 for (_, hunk_hitbox) in &layout.display_hunks {
5494 if let Some(hunk_hitbox) = hunk_hitbox {
5495 if !self
5496 .editor
5497 .read(cx)
5498 .buffer()
5499 .read(cx)
5500 .all_diff_hunks_expanded()
5501 {
5502 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
5503 }
5504 }
5505 }
5506
5507 let show_git_gutter = layout
5508 .position_map
5509 .snapshot
5510 .show_git_diff_gutter
5511 .unwrap_or_else(|| {
5512 matches!(
5513 ProjectSettings::get_global(cx).git.git_gutter,
5514 Some(GitGutterSetting::TrackedFiles)
5515 )
5516 });
5517 if show_git_gutter {
5518 Self::paint_gutter_diff_hunks(layout, window, cx)
5519 }
5520
5521 let highlight_width = 0.275 * layout.position_map.line_height;
5522 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
5523 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5524 for (range, color) in &layout.highlighted_gutter_ranges {
5525 let start_row = if range.start.row() < layout.visible_display_row_range.start {
5526 layout.visible_display_row_range.start - DisplayRow(1)
5527 } else {
5528 range.start.row()
5529 };
5530 let end_row = if range.end.row() > layout.visible_display_row_range.end {
5531 layout.visible_display_row_range.end + DisplayRow(1)
5532 } else {
5533 range.end.row()
5534 };
5535
5536 let start_y = layout.gutter_hitbox.top()
5537 + start_row.0 as f32 * layout.position_map.line_height
5538 - layout.position_map.scroll_pixel_position.y;
5539 let end_y = layout.gutter_hitbox.top()
5540 + (end_row.0 + 1) as f32 * layout.position_map.line_height
5541 - layout.position_map.scroll_pixel_position.y;
5542 let bounds = Bounds::from_corners(
5543 point(layout.gutter_hitbox.left(), start_y),
5544 point(layout.gutter_hitbox.left() + highlight_width, end_y),
5545 );
5546 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
5547 }
5548 });
5549 }
5550
5551 fn paint_blamed_display_rows(
5552 &self,
5553 layout: &mut EditorLayout,
5554 window: &mut Window,
5555 cx: &mut App,
5556 ) {
5557 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
5558 return;
5559 };
5560
5561 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5562 for mut blame_element in blamed_display_rows.into_iter() {
5563 blame_element.paint(window, cx);
5564 }
5565 })
5566 }
5567
5568 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5569 window.with_content_mask(
5570 Some(ContentMask {
5571 bounds: layout.position_map.text_hitbox.bounds,
5572 }),
5573 |window| {
5574 let editor = self.editor.read(cx);
5575 if editor.mouse_cursor_hidden {
5576 window.set_window_cursor_style(CursorStyle::None);
5577 } else if editor
5578 .hovered_link_state
5579 .as_ref()
5580 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
5581 {
5582 window.set_cursor_style(
5583 CursorStyle::PointingHand,
5584 &layout.position_map.text_hitbox,
5585 );
5586 } else {
5587 window.set_cursor_style(CursorStyle::IBeam, &layout.position_map.text_hitbox);
5588 };
5589
5590 self.paint_lines_background(layout, window, cx);
5591 let invisible_display_ranges = self.paint_highlights(layout, window);
5592 self.paint_lines(&invisible_display_ranges, layout, window, cx);
5593 self.paint_redactions(layout, window);
5594 self.paint_cursors(layout, window, cx);
5595 self.paint_inline_diagnostics(layout, window, cx);
5596 self.paint_inline_blame(layout, window, cx);
5597 self.paint_inline_code_actions(layout, window, cx);
5598 self.paint_diff_hunk_controls(layout, window, cx);
5599 window.with_element_namespace("crease_trailers", |window| {
5600 for trailer in layout.crease_trailers.iter_mut().flatten() {
5601 trailer.element.paint(window, cx);
5602 }
5603 });
5604 },
5605 )
5606 }
5607
5608 fn paint_highlights(
5609 &mut self,
5610 layout: &mut EditorLayout,
5611 window: &mut Window,
5612 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
5613 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5614 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
5615 let line_end_overshoot = 0.15 * layout.position_map.line_height;
5616 for (range, color) in &layout.highlighted_ranges {
5617 self.paint_highlighted_range(
5618 range.clone(),
5619 *color,
5620 Pixels::ZERO,
5621 line_end_overshoot,
5622 layout,
5623 window,
5624 );
5625 }
5626
5627 let corner_radius = 0.15 * layout.position_map.line_height;
5628
5629 for (player_color, selections) in &layout.selections {
5630 for selection in selections.iter() {
5631 self.paint_highlighted_range(
5632 selection.range.clone(),
5633 player_color.selection,
5634 corner_radius,
5635 corner_radius * 2.,
5636 layout,
5637 window,
5638 );
5639
5640 if selection.is_local && !selection.range.is_empty() {
5641 invisible_display_ranges.push(selection.range.clone());
5642 }
5643 }
5644 }
5645 invisible_display_ranges
5646 })
5647 }
5648
5649 fn paint_lines(
5650 &mut self,
5651 invisible_display_ranges: &[Range<DisplayPoint>],
5652 layout: &mut EditorLayout,
5653 window: &mut Window,
5654 cx: &mut App,
5655 ) {
5656 let whitespace_setting = self
5657 .editor
5658 .read(cx)
5659 .buffer
5660 .read(cx)
5661 .language_settings(cx)
5662 .show_whitespaces;
5663
5664 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
5665 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
5666 line_with_invisibles.draw(
5667 layout,
5668 row,
5669 layout.content_origin,
5670 whitespace_setting,
5671 invisible_display_ranges,
5672 window,
5673 cx,
5674 )
5675 }
5676
5677 for line_element in &mut layout.line_elements {
5678 line_element.paint(window, cx);
5679 }
5680 }
5681
5682 fn paint_lines_background(
5683 &mut self,
5684 layout: &mut EditorLayout,
5685 window: &mut Window,
5686 cx: &mut App,
5687 ) {
5688 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
5689 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
5690 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
5691 }
5692 }
5693
5694 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
5695 if layout.redacted_ranges.is_empty() {
5696 return;
5697 }
5698
5699 let line_end_overshoot = layout.line_end_overshoot();
5700
5701 // A softer than perfect black
5702 let redaction_color = gpui::rgb(0x0e1111);
5703
5704 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5705 for range in layout.redacted_ranges.iter() {
5706 self.paint_highlighted_range(
5707 range.clone(),
5708 redaction_color.into(),
5709 Pixels::ZERO,
5710 line_end_overshoot,
5711 layout,
5712 window,
5713 );
5714 }
5715 });
5716 }
5717
5718 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5719 for cursor in &mut layout.visible_cursors {
5720 cursor.paint(layout.content_origin, window, cx);
5721 }
5722 }
5723
5724 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5725 let Some(scrollbars_layout) = layout.scrollbars_layout.take() else {
5726 return;
5727 };
5728 let any_scrollbar_dragged = self.editor.read(cx).scroll_manager.any_scrollbar_dragged();
5729
5730 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
5731 let hitbox = &scrollbar_layout.hitbox;
5732 if scrollbars_layout.visible {
5733 let scrollbar_edges = match axis {
5734 ScrollbarAxis::Horizontal => Edges {
5735 top: Pixels::ZERO,
5736 right: Pixels::ZERO,
5737 bottom: Pixels::ZERO,
5738 left: Pixels::ZERO,
5739 },
5740 ScrollbarAxis::Vertical => Edges {
5741 top: Pixels::ZERO,
5742 right: Pixels::ZERO,
5743 bottom: Pixels::ZERO,
5744 left: ScrollbarLayout::BORDER_WIDTH,
5745 },
5746 };
5747
5748 window.paint_layer(hitbox.bounds, |window| {
5749 window.paint_quad(quad(
5750 hitbox.bounds,
5751 Corners::default(),
5752 cx.theme().colors().scrollbar_track_background,
5753 scrollbar_edges,
5754 cx.theme().colors().scrollbar_track_border,
5755 BorderStyle::Solid,
5756 ));
5757
5758 if axis == ScrollbarAxis::Vertical {
5759 let fast_markers =
5760 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
5761 // Refresh slow scrollbar markers in the background. Below, we
5762 // paint whatever markers have already been computed.
5763 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
5764
5765 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
5766 for marker in markers.iter().chain(&fast_markers) {
5767 let mut marker = marker.clone();
5768 marker.bounds.origin += hitbox.origin;
5769 window.paint_quad(marker);
5770 }
5771 }
5772
5773 if let Some(thumb_bounds) = scrollbar_layout.thumb_bounds {
5774 let scrollbar_thumb_color = match scrollbar_layout.thumb_state {
5775 ScrollbarThumbState::Dragging => {
5776 cx.theme().colors().scrollbar_thumb_active_background
5777 }
5778 ScrollbarThumbState::Hovered => {
5779 cx.theme().colors().scrollbar_thumb_hover_background
5780 }
5781 ScrollbarThumbState::Idle => {
5782 cx.theme().colors().scrollbar_thumb_background
5783 }
5784 };
5785 window.paint_quad(quad(
5786 thumb_bounds,
5787 Corners::default(),
5788 scrollbar_thumb_color,
5789 scrollbar_edges,
5790 cx.theme().colors().scrollbar_thumb_border,
5791 BorderStyle::Solid,
5792 ));
5793
5794 if any_scrollbar_dragged {
5795 window.set_window_cursor_style(CursorStyle::Arrow);
5796 } else {
5797 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
5798 }
5799 }
5800 })
5801 }
5802 }
5803
5804 window.on_mouse_event({
5805 let editor = self.editor.clone();
5806 let scrollbars_layout = scrollbars_layout.clone();
5807
5808 let mut mouse_position = window.mouse_position();
5809 move |event: &MouseMoveEvent, phase, window, cx| {
5810 if phase == DispatchPhase::Capture {
5811 return;
5812 }
5813
5814 editor.update(cx, |editor, cx| {
5815 if let Some((scrollbar_layout, axis)) = event
5816 .pressed_button
5817 .filter(|button| *button == MouseButton::Left)
5818 .and(editor.scroll_manager.dragging_scrollbar_axis())
5819 .and_then(|axis| {
5820 scrollbars_layout
5821 .iter_scrollbars()
5822 .find(|(_, a)| *a == axis)
5823 })
5824 {
5825 let ScrollbarLayout {
5826 hitbox,
5827 text_unit_size,
5828 ..
5829 } = scrollbar_layout;
5830
5831 let old_position = mouse_position.along(axis);
5832 let new_position = event.position.along(axis);
5833 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
5834 .contains(&old_position)
5835 {
5836 let position = editor.scroll_position(cx).apply_along(axis, |p| {
5837 (p + (new_position - old_position) / *text_unit_size).max(0.)
5838 });
5839 editor.set_scroll_position(position, window, cx);
5840 }
5841
5842 editor.scroll_manager.show_scrollbars(window, cx);
5843 cx.stop_propagation();
5844 } else if let Some((layout, axis)) = scrollbars_layout
5845 .get_hovered_axis(window)
5846 .filter(|_| !event.dragging())
5847 {
5848 if layout.thumb_hovered(&event.position) {
5849 editor
5850 .scroll_manager
5851 .set_hovered_scroll_thumb_axis(axis, cx);
5852 } else {
5853 editor.scroll_manager.reset_scrollbar_state(cx);
5854 }
5855
5856 editor.scroll_manager.show_scrollbars(window, cx);
5857 } else {
5858 editor.scroll_manager.reset_scrollbar_state(cx);
5859 }
5860
5861 mouse_position = event.position;
5862 })
5863 }
5864 });
5865
5866 if any_scrollbar_dragged {
5867 window.on_mouse_event({
5868 let editor = self.editor.clone();
5869 move |_: &MouseUpEvent, phase, window, cx| {
5870 if phase == DispatchPhase::Capture {
5871 return;
5872 }
5873
5874 editor.update(cx, |editor, cx| {
5875 if let Some((_, axis)) = scrollbars_layout.get_hovered_axis(window) {
5876 editor
5877 .scroll_manager
5878 .set_hovered_scroll_thumb_axis(axis, cx);
5879 } else {
5880 editor.scroll_manager.reset_scrollbar_state(cx);
5881 }
5882 cx.stop_propagation();
5883 });
5884 }
5885 });
5886 } else {
5887 window.on_mouse_event({
5888 let editor = self.editor.clone();
5889
5890 move |event: &MouseDownEvent, phase, window, cx| {
5891 if phase == DispatchPhase::Capture {
5892 return;
5893 }
5894 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
5895 else {
5896 return;
5897 };
5898
5899 let ScrollbarLayout {
5900 hitbox,
5901 visible_range,
5902 text_unit_size,
5903 thumb_bounds,
5904 ..
5905 } = scrollbar_layout;
5906
5907 let Some(thumb_bounds) = thumb_bounds else {
5908 return;
5909 };
5910
5911 editor.update(cx, |editor, cx| {
5912 editor
5913 .scroll_manager
5914 .set_dragged_scroll_thumb_axis(axis, cx);
5915
5916 let event_position = event.position.along(axis);
5917
5918 if event_position < thumb_bounds.origin.along(axis)
5919 || thumb_bounds.bottom_right().along(axis) < event_position
5920 {
5921 let center_position = ((event_position - hitbox.origin.along(axis))
5922 / *text_unit_size)
5923 .round() as u32;
5924 let start_position = center_position.saturating_sub(
5925 (visible_range.end - visible_range.start) as u32 / 2,
5926 );
5927
5928 let position = editor
5929 .scroll_position(cx)
5930 .apply_along(axis, |_| start_position as f32);
5931
5932 editor.set_scroll_position(position, window, cx);
5933 } else {
5934 editor.scroll_manager.show_scrollbars(window, cx);
5935 }
5936
5937 cx.stop_propagation();
5938 });
5939 }
5940 });
5941 }
5942 }
5943
5944 fn collect_fast_scrollbar_markers(
5945 &self,
5946 layout: &EditorLayout,
5947 scrollbar_layout: &ScrollbarLayout,
5948 cx: &mut App,
5949 ) -> Vec<PaintQuad> {
5950 const LIMIT: usize = 100;
5951 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5952 return vec![];
5953 }
5954 let cursor_ranges = layout
5955 .cursors
5956 .iter()
5957 .map(|(point, color)| ColoredRange {
5958 start: point.row(),
5959 end: point.row(),
5960 color: *color,
5961 })
5962 .collect_vec();
5963 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5964 }
5965
5966 fn refresh_slow_scrollbar_markers(
5967 &self,
5968 layout: &EditorLayout,
5969 scrollbar_layout: &ScrollbarLayout,
5970 window: &mut Window,
5971 cx: &mut App,
5972 ) {
5973 self.editor.update(cx, |editor, cx| {
5974 if !editor.is_singleton(cx)
5975 || !editor
5976 .scrollbar_marker_state
5977 .should_refresh(scrollbar_layout.hitbox.size)
5978 {
5979 return;
5980 }
5981
5982 let scrollbar_layout = scrollbar_layout.clone();
5983 let background_highlights = editor.background_highlights.clone();
5984 let snapshot = layout.position_map.snapshot.clone();
5985 let theme = cx.theme().clone();
5986 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5987
5988 editor.scrollbar_marker_state.dirty = false;
5989 editor.scrollbar_marker_state.pending_refresh =
5990 Some(cx.spawn_in(window, async move |editor, cx| {
5991 let scrollbar_size = scrollbar_layout.hitbox.size;
5992 let scrollbar_markers = cx
5993 .background_spawn(async move {
5994 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5995 let mut marker_quads = Vec::new();
5996 if scrollbar_settings.git_diff {
5997 let marker_row_ranges =
5998 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5999 let start_display_row =
6000 MultiBufferPoint::new(hunk.row_range.start.0, 0)
6001 .to_display_point(&snapshot.display_snapshot)
6002 .row();
6003 let mut end_display_row =
6004 MultiBufferPoint::new(hunk.row_range.end.0, 0)
6005 .to_display_point(&snapshot.display_snapshot)
6006 .row();
6007 if end_display_row != start_display_row {
6008 end_display_row.0 -= 1;
6009 }
6010 let color = match &hunk.status().kind {
6011 DiffHunkStatusKind::Added => {
6012 theme.colors().version_control_added
6013 }
6014 DiffHunkStatusKind::Modified => {
6015 theme.colors().version_control_modified
6016 }
6017 DiffHunkStatusKind::Deleted => {
6018 theme.colors().version_control_deleted
6019 }
6020 };
6021 ColoredRange {
6022 start: start_display_row,
6023 end: end_display_row,
6024 color,
6025 }
6026 });
6027
6028 marker_quads.extend(
6029 scrollbar_layout
6030 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
6031 );
6032 }
6033
6034 for (background_highlight_id, (_, background_ranges)) in
6035 background_highlights.iter()
6036 {
6037 let is_search_highlights = *background_highlight_id
6038 == HighlightKey::Type(TypeId::of::<BufferSearchHighlights>());
6039 let is_text_highlights = *background_highlight_id
6040 == HighlightKey::Type(TypeId::of::<SelectedTextHighlight>());
6041 let is_symbol_occurrences = *background_highlight_id
6042 == HighlightKey::Type(TypeId::of::<DocumentHighlightRead>())
6043 || *background_highlight_id
6044 == HighlightKey::Type(
6045 TypeId::of::<DocumentHighlightWrite>(),
6046 );
6047 if (is_search_highlights && scrollbar_settings.search_results)
6048 || (is_text_highlights && scrollbar_settings.selected_text)
6049 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
6050 {
6051 let mut color = theme.status().info;
6052 if is_symbol_occurrences {
6053 color.fade_out(0.5);
6054 }
6055 let marker_row_ranges = background_ranges.iter().map(|range| {
6056 let display_start = range
6057 .start
6058 .to_display_point(&snapshot.display_snapshot);
6059 let display_end =
6060 range.end.to_display_point(&snapshot.display_snapshot);
6061 ColoredRange {
6062 start: display_start.row(),
6063 end: display_end.row(),
6064 color,
6065 }
6066 });
6067 marker_quads.extend(
6068 scrollbar_layout
6069 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
6070 );
6071 }
6072 }
6073
6074 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
6075 let diagnostics = snapshot
6076 .buffer_snapshot
6077 .diagnostics_in_range::<Point>(Point::zero()..max_point)
6078 // Don't show diagnostics the user doesn't care about
6079 .filter(|diagnostic| {
6080 match (
6081 scrollbar_settings.diagnostics,
6082 diagnostic.diagnostic.severity,
6083 ) {
6084 (ScrollbarDiagnostics::All, _) => true,
6085 (
6086 ScrollbarDiagnostics::Error,
6087 lsp::DiagnosticSeverity::ERROR,
6088 ) => true,
6089 (
6090 ScrollbarDiagnostics::Warning,
6091 lsp::DiagnosticSeverity::ERROR
6092 | lsp::DiagnosticSeverity::WARNING,
6093 ) => true,
6094 (
6095 ScrollbarDiagnostics::Information,
6096 lsp::DiagnosticSeverity::ERROR
6097 | lsp::DiagnosticSeverity::WARNING
6098 | lsp::DiagnosticSeverity::INFORMATION,
6099 ) => true,
6100 (_, _) => false,
6101 }
6102 })
6103 // We want to sort by severity, in order to paint the most severe diagnostics last.
6104 .sorted_by_key(|diagnostic| {
6105 std::cmp::Reverse(diagnostic.diagnostic.severity)
6106 });
6107
6108 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
6109 let start_display = diagnostic
6110 .range
6111 .start
6112 .to_display_point(&snapshot.display_snapshot);
6113 let end_display = diagnostic
6114 .range
6115 .end
6116 .to_display_point(&snapshot.display_snapshot);
6117 let color = match diagnostic.diagnostic.severity {
6118 lsp::DiagnosticSeverity::ERROR => theme.status().error,
6119 lsp::DiagnosticSeverity::WARNING => theme.status().warning,
6120 lsp::DiagnosticSeverity::INFORMATION => theme.status().info,
6121 _ => theme.status().hint,
6122 };
6123 ColoredRange {
6124 start: start_display.row(),
6125 end: end_display.row(),
6126 color,
6127 }
6128 });
6129 marker_quads.extend(
6130 scrollbar_layout
6131 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
6132 );
6133 }
6134
6135 Arc::from(marker_quads)
6136 })
6137 .await;
6138
6139 editor.update(cx, |editor, cx| {
6140 editor.scrollbar_marker_state.markers = scrollbar_markers;
6141 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
6142 editor.scrollbar_marker_state.pending_refresh = None;
6143 cx.notify();
6144 })?;
6145
6146 Ok(())
6147 }));
6148 });
6149 }
6150
6151 fn paint_highlighted_range(
6152 &self,
6153 range: Range<DisplayPoint>,
6154 color: Hsla,
6155 corner_radius: Pixels,
6156 line_end_overshoot: Pixels,
6157 layout: &EditorLayout,
6158 window: &mut Window,
6159 ) {
6160 let start_row = layout.visible_display_row_range.start;
6161 let end_row = layout.visible_display_row_range.end;
6162 if range.start != range.end {
6163 let row_range = if range.end.column() == 0 {
6164 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
6165 } else {
6166 cmp::max(range.start.row(), start_row)
6167 ..cmp::min(range.end.row().next_row(), end_row)
6168 };
6169
6170 let highlighted_range = HighlightedRange {
6171 color,
6172 line_height: layout.position_map.line_height,
6173 corner_radius,
6174 start_y: layout.content_origin.y
6175 + row_range.start.as_f32() * layout.position_map.line_height
6176 - layout.position_map.scroll_pixel_position.y,
6177 lines: row_range
6178 .iter_rows()
6179 .map(|row| {
6180 let line_layout =
6181 &layout.position_map.line_layouts[row.minus(start_row) as usize];
6182 HighlightedRangeLine {
6183 start_x: if row == range.start.row() {
6184 layout.content_origin.x
6185 + line_layout.x_for_index(range.start.column() as usize)
6186 - layout.position_map.scroll_pixel_position.x
6187 } else {
6188 layout.content_origin.x
6189 - layout.position_map.scroll_pixel_position.x
6190 },
6191 end_x: if row == range.end.row() {
6192 layout.content_origin.x
6193 + line_layout.x_for_index(range.end.column() as usize)
6194 - layout.position_map.scroll_pixel_position.x
6195 } else {
6196 layout.content_origin.x + line_layout.width + line_end_overshoot
6197 - layout.position_map.scroll_pixel_position.x
6198 },
6199 }
6200 })
6201 .collect(),
6202 };
6203
6204 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
6205 }
6206 }
6207
6208 fn paint_inline_diagnostics(
6209 &mut self,
6210 layout: &mut EditorLayout,
6211 window: &mut Window,
6212 cx: &mut App,
6213 ) {
6214 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
6215 inline_diagnostic.1.paint(window, cx);
6216 }
6217 }
6218
6219 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6220 if let Some(mut inline_blame) = layout.inline_blame.take() {
6221 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6222 inline_blame.paint(window, cx);
6223 })
6224 }
6225 }
6226
6227 fn paint_inline_code_actions(
6228 &mut self,
6229 layout: &mut EditorLayout,
6230 window: &mut Window,
6231 cx: &mut App,
6232 ) {
6233 if let Some(mut inline_code_actions) = layout.inline_code_actions.take() {
6234 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6235 inline_code_actions.paint(window, cx);
6236 })
6237 }
6238 }
6239
6240 fn paint_diff_hunk_controls(
6241 &mut self,
6242 layout: &mut EditorLayout,
6243 window: &mut Window,
6244 cx: &mut App,
6245 ) {
6246 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
6247 diff_hunk_control.paint(window, cx);
6248 }
6249 }
6250
6251 fn paint_minimap(&self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6252 if let Some(mut layout) = layout.minimap.take() {
6253 let minimap_hitbox = layout.thumb_layout.hitbox.clone();
6254 let dragging_minimap = self.editor.read(cx).scroll_manager.is_dragging_minimap();
6255
6256 window.paint_layer(layout.thumb_layout.hitbox.bounds, |window| {
6257 window.with_element_namespace("minimap", |window| {
6258 layout.minimap.paint(window, cx);
6259 if let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds {
6260 let minimap_thumb_color = match layout.thumb_layout.thumb_state {
6261 ScrollbarThumbState::Idle => {
6262 cx.theme().colors().minimap_thumb_background
6263 }
6264 ScrollbarThumbState::Hovered => {
6265 cx.theme().colors().minimap_thumb_hover_background
6266 }
6267 ScrollbarThumbState::Dragging => {
6268 cx.theme().colors().minimap_thumb_active_background
6269 }
6270 };
6271 let minimap_thumb_border = match layout.thumb_border_style {
6272 MinimapThumbBorder::Full => Edges::all(ScrollbarLayout::BORDER_WIDTH),
6273 MinimapThumbBorder::LeftOnly => Edges {
6274 left: ScrollbarLayout::BORDER_WIDTH,
6275 ..Default::default()
6276 },
6277 MinimapThumbBorder::LeftOpen => Edges {
6278 right: ScrollbarLayout::BORDER_WIDTH,
6279 top: ScrollbarLayout::BORDER_WIDTH,
6280 bottom: ScrollbarLayout::BORDER_WIDTH,
6281 ..Default::default()
6282 },
6283 MinimapThumbBorder::RightOpen => Edges {
6284 left: ScrollbarLayout::BORDER_WIDTH,
6285 top: ScrollbarLayout::BORDER_WIDTH,
6286 bottom: ScrollbarLayout::BORDER_WIDTH,
6287 ..Default::default()
6288 },
6289 MinimapThumbBorder::None => Default::default(),
6290 };
6291
6292 window.paint_layer(minimap_hitbox.bounds, |window| {
6293 window.paint_quad(quad(
6294 thumb_bounds,
6295 Corners::default(),
6296 minimap_thumb_color,
6297 minimap_thumb_border,
6298 cx.theme().colors().minimap_thumb_border,
6299 BorderStyle::Solid,
6300 ));
6301 });
6302 }
6303 });
6304 });
6305
6306 if dragging_minimap {
6307 window.set_window_cursor_style(CursorStyle::Arrow);
6308 } else {
6309 window.set_cursor_style(CursorStyle::Arrow, &minimap_hitbox);
6310 }
6311
6312 let minimap_axis = ScrollbarAxis::Vertical;
6313 let pixels_per_line = (minimap_hitbox.size.height / layout.max_scroll_top)
6314 .min(layout.minimap_line_height);
6315
6316 let mut mouse_position = window.mouse_position();
6317
6318 window.on_mouse_event({
6319 let editor = self.editor.clone();
6320
6321 let minimap_hitbox = minimap_hitbox.clone();
6322
6323 move |event: &MouseMoveEvent, phase, window, cx| {
6324 if phase == DispatchPhase::Capture {
6325 return;
6326 }
6327
6328 editor.update(cx, |editor, cx| {
6329 if event.pressed_button == Some(MouseButton::Left)
6330 && editor.scroll_manager.is_dragging_minimap()
6331 {
6332 let old_position = mouse_position.along(minimap_axis);
6333 let new_position = event.position.along(minimap_axis);
6334 if (minimap_hitbox.origin.along(minimap_axis)
6335 ..minimap_hitbox.bottom_right().along(minimap_axis))
6336 .contains(&old_position)
6337 {
6338 let position =
6339 editor.scroll_position(cx).apply_along(minimap_axis, |p| {
6340 (p + (new_position - old_position) / pixels_per_line)
6341 .max(0.)
6342 });
6343 editor.set_scroll_position(position, window, cx);
6344 }
6345 cx.stop_propagation();
6346 } else {
6347 if minimap_hitbox.is_hovered(window) {
6348 editor.scroll_manager.set_is_hovering_minimap_thumb(
6349 !event.dragging()
6350 && layout
6351 .thumb_layout
6352 .thumb_bounds
6353 .is_some_and(|bounds| bounds.contains(&event.position)),
6354 cx,
6355 );
6356
6357 // Stop hover events from propagating to the
6358 // underlying editor if the minimap hitbox is hovered
6359 if !event.dragging() {
6360 cx.stop_propagation();
6361 }
6362 } else {
6363 editor.scroll_manager.hide_minimap_thumb(cx);
6364 }
6365 }
6366 mouse_position = event.position;
6367 });
6368 }
6369 });
6370
6371 if dragging_minimap {
6372 window.on_mouse_event({
6373 let editor = self.editor.clone();
6374 move |event: &MouseUpEvent, phase, window, cx| {
6375 if phase == DispatchPhase::Capture {
6376 return;
6377 }
6378
6379 editor.update(cx, |editor, cx| {
6380 if minimap_hitbox.is_hovered(window) {
6381 editor.scroll_manager.set_is_hovering_minimap_thumb(
6382 layout
6383 .thumb_layout
6384 .thumb_bounds
6385 .is_some_and(|bounds| bounds.contains(&event.position)),
6386 cx,
6387 );
6388 } else {
6389 editor.scroll_manager.hide_minimap_thumb(cx);
6390 }
6391 cx.stop_propagation();
6392 });
6393 }
6394 });
6395 } else {
6396 window.on_mouse_event({
6397 let editor = self.editor.clone();
6398
6399 move |event: &MouseDownEvent, phase, window, cx| {
6400 if phase == DispatchPhase::Capture || !minimap_hitbox.is_hovered(window) {
6401 return;
6402 }
6403
6404 let event_position = event.position;
6405
6406 let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds else {
6407 return;
6408 };
6409
6410 editor.update(cx, |editor, cx| {
6411 if !thumb_bounds.contains(&event_position) {
6412 let click_position =
6413 event_position.relative_to(&minimap_hitbox.origin).y;
6414
6415 let top_position = (click_position
6416 - thumb_bounds.size.along(minimap_axis) / 2.0)
6417 .max(Pixels::ZERO);
6418
6419 let scroll_offset = (layout.minimap_scroll_top
6420 + top_position / layout.minimap_line_height)
6421 .min(layout.max_scroll_top);
6422
6423 let scroll_position = editor
6424 .scroll_position(cx)
6425 .apply_along(minimap_axis, |_| scroll_offset);
6426 editor.set_scroll_position(scroll_position, window, cx);
6427 }
6428
6429 editor.scroll_manager.set_is_dragging_minimap(cx);
6430 cx.stop_propagation();
6431 });
6432 }
6433 });
6434 }
6435 }
6436 }
6437
6438 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6439 for mut block in layout.blocks.drain(..) {
6440 if block.overlaps_gutter {
6441 block.element.paint(window, cx);
6442 } else {
6443 let mut bounds = layout.hitbox.bounds;
6444 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
6445 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6446 block.element.paint(window, cx);
6447 })
6448 }
6449 }
6450 }
6451
6452 fn paint_inline_completion_popover(
6453 &mut self,
6454 layout: &mut EditorLayout,
6455 window: &mut Window,
6456 cx: &mut App,
6457 ) {
6458 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
6459 inline_completion_popover.paint(window, cx);
6460 }
6461 }
6462
6463 fn paint_mouse_context_menu(
6464 &mut self,
6465 layout: &mut EditorLayout,
6466 window: &mut Window,
6467 cx: &mut App,
6468 ) {
6469 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
6470 mouse_context_menu.paint(window, cx);
6471 }
6472 }
6473
6474 fn paint_scroll_wheel_listener(
6475 &mut self,
6476 layout: &EditorLayout,
6477 window: &mut Window,
6478 cx: &mut App,
6479 ) {
6480 window.on_mouse_event({
6481 let position_map = layout.position_map.clone();
6482 let editor = self.editor.clone();
6483 let hitbox = layout.hitbox.clone();
6484 let mut delta = ScrollDelta::default();
6485
6486 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
6487 // accidentally turn off their scrolling.
6488 let base_scroll_sensitivity =
6489 EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
6490
6491 // Use a minimum fast_scroll_sensitivity for same reason above
6492 let fast_scroll_sensitivity = EditorSettings::get_global(cx)
6493 .fast_scroll_sensitivity
6494 .max(0.01);
6495
6496 move |event: &ScrollWheelEvent, phase, window, cx| {
6497 let scroll_sensitivity = {
6498 if event.modifiers.alt {
6499 fast_scroll_sensitivity
6500 } else {
6501 base_scroll_sensitivity
6502 }
6503 };
6504
6505 if phase == DispatchPhase::Bubble && hitbox.should_handle_scroll(window) {
6506 delta = delta.coalesce(event.delta);
6507 editor.update(cx, |editor, cx| {
6508 let position_map: &PositionMap = &position_map;
6509
6510 let line_height = position_map.line_height;
6511 let max_glyph_width = position_map.em_width;
6512 let (delta, axis) = match delta {
6513 gpui::ScrollDelta::Pixels(mut pixels) => {
6514 //Trackpad
6515 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
6516 (pixels, axis)
6517 }
6518
6519 gpui::ScrollDelta::Lines(lines) => {
6520 //Not trackpad
6521 let pixels =
6522 point(lines.x * max_glyph_width, lines.y * line_height);
6523 (pixels, None)
6524 }
6525 };
6526
6527 let current_scroll_position = position_map.snapshot.scroll_position();
6528 let x = (current_scroll_position.x * max_glyph_width
6529 - (delta.x * scroll_sensitivity))
6530 / max_glyph_width;
6531 let y = (current_scroll_position.y * line_height
6532 - (delta.y * scroll_sensitivity))
6533 / line_height;
6534 let mut scroll_position =
6535 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
6536 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
6537 if forbid_vertical_scroll {
6538 scroll_position.y = current_scroll_position.y;
6539 }
6540
6541 if scroll_position != current_scroll_position {
6542 editor.scroll(scroll_position, axis, window, cx);
6543 cx.stop_propagation();
6544 } else if y < 0. {
6545 // Due to clamping, we may fail to detect cases of overscroll to the top;
6546 // We want the scroll manager to get an update in such cases and detect the change of direction
6547 // on the next frame.
6548 cx.notify();
6549 }
6550 });
6551 }
6552 }
6553 });
6554 }
6555
6556 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
6557 if self.editor.read(cx).mode.is_minimap() {
6558 return;
6559 }
6560
6561 self.paint_scroll_wheel_listener(layout, window, cx);
6562
6563 window.on_mouse_event({
6564 let position_map = layout.position_map.clone();
6565 let editor = self.editor.clone();
6566 let diff_hunk_range =
6567 layout
6568 .display_hunks
6569 .iter()
6570 .find_map(|(hunk, hunk_hitbox)| match hunk {
6571 DisplayDiffHunk::Folded { .. } => None,
6572 DisplayDiffHunk::Unfolded {
6573 multi_buffer_range, ..
6574 } => {
6575 if hunk_hitbox
6576 .as_ref()
6577 .map(|hitbox| hitbox.is_hovered(window))
6578 .unwrap_or(false)
6579 {
6580 Some(multi_buffer_range.clone())
6581 } else {
6582 None
6583 }
6584 }
6585 });
6586 let line_numbers = layout.line_numbers.clone();
6587
6588 move |event: &MouseDownEvent, phase, window, cx| {
6589 if phase == DispatchPhase::Bubble {
6590 match event.button {
6591 MouseButton::Left => editor.update(cx, |editor, cx| {
6592 let pending_mouse_down = editor
6593 .pending_mouse_down
6594 .get_or_insert_with(Default::default)
6595 .clone();
6596
6597 *pending_mouse_down.borrow_mut() = Some(event.clone());
6598
6599 Self::mouse_left_down(
6600 editor,
6601 event,
6602 diff_hunk_range.clone(),
6603 &position_map,
6604 line_numbers.as_ref(),
6605 window,
6606 cx,
6607 );
6608 }),
6609 MouseButton::Right => editor.update(cx, |editor, cx| {
6610 Self::mouse_right_down(editor, event, &position_map, window, cx);
6611 }),
6612 MouseButton::Middle => editor.update(cx, |editor, cx| {
6613 Self::mouse_middle_down(editor, event, &position_map, window, cx);
6614 }),
6615 _ => {}
6616 };
6617 }
6618 }
6619 });
6620
6621 window.on_mouse_event({
6622 let editor = self.editor.clone();
6623 let position_map = layout.position_map.clone();
6624
6625 move |event: &MouseUpEvent, phase, window, cx| {
6626 if phase == DispatchPhase::Bubble {
6627 editor.update(cx, |editor, cx| {
6628 Self::mouse_up(editor, event, &position_map, window, cx)
6629 });
6630 }
6631 }
6632 });
6633
6634 window.on_mouse_event({
6635 let editor = self.editor.clone();
6636 let position_map = layout.position_map.clone();
6637 let mut captured_mouse_down = None;
6638
6639 move |event: &MouseUpEvent, phase, window, cx| match phase {
6640 // Clear the pending mouse down during the capture phase,
6641 // so that it happens even if another event handler stops
6642 // propagation.
6643 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
6644 let pending_mouse_down = editor
6645 .pending_mouse_down
6646 .get_or_insert_with(Default::default)
6647 .clone();
6648
6649 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
6650 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
6651 captured_mouse_down = pending_mouse_down.take();
6652 window.refresh();
6653 }
6654 }),
6655 // Fire click handlers during the bubble phase.
6656 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
6657 if let Some(mouse_down) = captured_mouse_down.take() {
6658 let event = ClickEvent {
6659 down: mouse_down,
6660 up: event.clone(),
6661 };
6662 Self::click(editor, &event, &position_map, window, cx);
6663 }
6664 }),
6665 }
6666 });
6667
6668 window.on_mouse_event({
6669 let position_map = layout.position_map.clone();
6670 let editor = self.editor.clone();
6671
6672 move |event: &MouseMoveEvent, phase, window, cx| {
6673 if phase == DispatchPhase::Bubble {
6674 editor.update(cx, |editor, cx| {
6675 if editor.hover_state.focused(window, cx) {
6676 return;
6677 }
6678 if event.pressed_button == Some(MouseButton::Left)
6679 || event.pressed_button == Some(MouseButton::Middle)
6680 {
6681 Self::mouse_dragged(editor, event, &position_map, window, cx)
6682 }
6683
6684 Self::mouse_moved(editor, event, &position_map, window, cx)
6685 });
6686 }
6687 }
6688 });
6689 }
6690
6691 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
6692 bounds.top_right().x - self.style.scrollbar_width
6693 }
6694
6695 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
6696 let style = &self.style;
6697 let font_size = style.text.font_size.to_pixels(window.rem_size());
6698 let layout = window.text_system().shape_line(
6699 SharedString::from(" ".repeat(column)),
6700 font_size,
6701 &[TextRun {
6702 len: column,
6703 font: style.text.font(),
6704 color: Hsla::default(),
6705 background_color: None,
6706 underline: None,
6707 strikethrough: None,
6708 }],
6709 );
6710
6711 layout.width
6712 }
6713
6714 fn max_line_number_width(
6715 &self,
6716 snapshot: &EditorSnapshot,
6717 window: &mut Window,
6718 cx: &mut App,
6719 ) -> Pixels {
6720 let digit_count = snapshot.widest_line_number().ilog10() + 1;
6721 self.column_pixels(digit_count as usize, window, cx)
6722 }
6723
6724 fn shape_line_number(
6725 &self,
6726 text: SharedString,
6727 color: Hsla,
6728 window: &mut Window,
6729 ) -> ShapedLine {
6730 let run = TextRun {
6731 len: text.len(),
6732 font: self.style.text.font(),
6733 color,
6734 background_color: None,
6735 underline: None,
6736 strikethrough: None,
6737 };
6738 window.text_system().shape_line(
6739 text,
6740 self.style.text.font_size.to_pixels(window.rem_size()),
6741 &[run],
6742 )
6743 }
6744
6745 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
6746 let unstaged = status.has_secondary_hunk();
6747 let unstaged_hollow = ProjectSettings::get_global(cx)
6748 .git
6749 .hunk_style
6750 .map_or(false, |style| {
6751 matches!(style, GitHunkStyleSetting::UnstagedHollow)
6752 });
6753
6754 unstaged == unstaged_hollow
6755 }
6756}
6757
6758fn header_jump_data(
6759 snapshot: &EditorSnapshot,
6760 block_row_start: DisplayRow,
6761 height: u32,
6762 for_excerpt: &ExcerptInfo,
6763) -> JumpData {
6764 let range = &for_excerpt.range;
6765 let buffer = &for_excerpt.buffer;
6766 let jump_anchor = range.primary.start;
6767
6768 let excerpt_start = range.context.start;
6769 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
6770 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
6771 0
6772 } else {
6773 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
6774 jump_position.row.saturating_sub(excerpt_start_point.row)
6775 };
6776
6777 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
6778 .saturating_sub(
6779 snapshot
6780 .scroll_anchor
6781 .scroll_position(&snapshot.display_snapshot)
6782 .y as u32,
6783 );
6784
6785 JumpData::MultiBufferPoint {
6786 excerpt_id: for_excerpt.id,
6787 anchor: jump_anchor,
6788 position: jump_position,
6789 line_offset_from_top,
6790 }
6791}
6792
6793pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
6794
6795impl AcceptEditPredictionBinding {
6796 pub fn keystroke(&self) -> Option<&Keystroke> {
6797 if let Some(binding) = self.0.as_ref() {
6798 match &binding.keystrokes() {
6799 [keystroke, ..] => Some(keystroke),
6800 _ => None,
6801 }
6802 } else {
6803 None
6804 }
6805 }
6806}
6807
6808fn prepaint_gutter_button(
6809 button: IconButton,
6810 row: DisplayRow,
6811 line_height: Pixels,
6812 gutter_dimensions: &GutterDimensions,
6813 scroll_pixel_position: gpui::Point<Pixels>,
6814 gutter_hitbox: &Hitbox,
6815 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
6816 window: &mut Window,
6817 cx: &mut App,
6818) -> AnyElement {
6819 let mut button = button.into_any_element();
6820
6821 let available_space = size(
6822 AvailableSpace::MinContent,
6823 AvailableSpace::Definite(line_height),
6824 );
6825 let indicator_size = button.layout_as_root(available_space, window, cx);
6826
6827 let blame_width = gutter_dimensions.git_blame_entries_width;
6828 let gutter_width = display_hunks
6829 .binary_search_by(|(hunk, _)| match hunk {
6830 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
6831 DisplayDiffHunk::Unfolded {
6832 display_row_range, ..
6833 } => {
6834 if display_row_range.end <= row {
6835 Ordering::Less
6836 } else if display_row_range.start > row {
6837 Ordering::Greater
6838 } else {
6839 Ordering::Equal
6840 }
6841 }
6842 })
6843 .ok()
6844 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
6845 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
6846
6847 let mut x = left_offset;
6848 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
6849 - indicator_size.width
6850 - left_offset;
6851 x += available_width / 2.;
6852
6853 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
6854 y += (line_height - indicator_size.height) / 2.;
6855
6856 button.prepaint_as_root(
6857 gutter_hitbox.origin + point(x, y),
6858 available_space,
6859 window,
6860 cx,
6861 );
6862 button
6863}
6864
6865fn render_inline_blame_entry(
6866 blame_entry: BlameEntry,
6867 style: &EditorStyle,
6868 cx: &mut App,
6869) -> Option<AnyElement> {
6870 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
6871 renderer.render_inline_blame_entry(&style.text, blame_entry, cx)
6872}
6873
6874fn render_blame_entry_popover(
6875 blame_entry: BlameEntry,
6876 scroll_handle: ScrollHandle,
6877 commit_message: Option<ParsedCommitMessage>,
6878 markdown: Entity<Markdown>,
6879 workspace: WeakEntity<Workspace>,
6880 blame: &Entity<GitBlame>,
6881 window: &mut Window,
6882 cx: &mut App,
6883) -> Option<AnyElement> {
6884 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
6885 let blame = blame.read(cx);
6886 let repository = blame.repository(cx)?.clone();
6887 renderer.render_blame_entry_popover(
6888 blame_entry,
6889 scroll_handle,
6890 commit_message,
6891 markdown,
6892 repository,
6893 workspace,
6894 window,
6895 cx,
6896 )
6897}
6898
6899fn render_blame_entry(
6900 ix: usize,
6901 blame: &Entity<GitBlame>,
6902 blame_entry: BlameEntry,
6903 style: &EditorStyle,
6904 last_used_color: &mut Option<(PlayerColor, Oid)>,
6905 editor: Entity<Editor>,
6906 workspace: Entity<Workspace>,
6907 renderer: Arc<dyn BlameRenderer>,
6908 cx: &mut App,
6909) -> Option<AnyElement> {
6910 let mut sha_color = cx
6911 .theme()
6912 .players()
6913 .color_for_participant(blame_entry.sha.into());
6914
6915 // If the last color we used is the same as the one we get for this line, but
6916 // the commit SHAs are different, then we try again to get a different color.
6917 match *last_used_color {
6918 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
6919 let index: u32 = blame_entry.sha.into();
6920 sha_color = cx.theme().players().color_for_participant(index + 1);
6921 }
6922 _ => {}
6923 };
6924 last_used_color.replace((sha_color, blame_entry.sha));
6925
6926 let blame = blame.read(cx);
6927 let details = blame.details_for_entry(&blame_entry);
6928 let repository = blame.repository(cx)?;
6929 renderer.render_blame_entry(
6930 &style.text,
6931 blame_entry,
6932 details,
6933 repository,
6934 workspace.downgrade(),
6935 editor,
6936 ix,
6937 sha_color.cursor,
6938 cx,
6939 )
6940}
6941
6942#[derive(Debug)]
6943pub(crate) struct LineWithInvisibles {
6944 fragments: SmallVec<[LineFragment; 1]>,
6945 invisibles: Vec<Invisible>,
6946 len: usize,
6947 pub(crate) width: Pixels,
6948 font_size: Pixels,
6949}
6950
6951enum LineFragment {
6952 Text(ShapedLine),
6953 Element {
6954 id: FoldId,
6955 element: Option<AnyElement>,
6956 size: Size<Pixels>,
6957 len: usize,
6958 },
6959}
6960
6961impl fmt::Debug for LineFragment {
6962 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
6963 match self {
6964 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
6965 LineFragment::Element { size, len, .. } => f
6966 .debug_struct("Element")
6967 .field("size", size)
6968 .field("len", len)
6969 .finish(),
6970 }
6971 }
6972}
6973
6974impl LineWithInvisibles {
6975 fn from_chunks<'a>(
6976 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
6977 editor_style: &EditorStyle,
6978 max_line_len: usize,
6979 max_line_count: usize,
6980 editor_mode: &EditorMode,
6981 text_width: Pixels,
6982 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
6983 window: &mut Window,
6984 cx: &mut App,
6985 ) -> Vec<Self> {
6986 let text_style = &editor_style.text;
6987 let mut layouts = Vec::with_capacity(max_line_count);
6988 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
6989 let mut line = String::new();
6990 let mut invisibles = Vec::new();
6991 let mut width = Pixels::ZERO;
6992 let mut len = 0;
6993 let mut styles = Vec::new();
6994 let mut non_whitespace_added = false;
6995 let mut row = 0;
6996 let mut line_exceeded_max_len = false;
6997 let font_size = text_style.font_size.to_pixels(window.rem_size());
6998
6999 let ellipsis = SharedString::from("⋯");
7000
7001 for highlighted_chunk in chunks.chain([HighlightedChunk {
7002 text: "\n",
7003 style: None,
7004 is_tab: false,
7005 is_inlay: false,
7006 replacement: None,
7007 }]) {
7008 if let Some(replacement) = highlighted_chunk.replacement {
7009 if !line.is_empty() {
7010 let shaped_line =
7011 window
7012 .text_system()
7013 .shape_line(line.clone().into(), font_size, &styles);
7014 width += shaped_line.width;
7015 len += shaped_line.len;
7016 fragments.push(LineFragment::Text(shaped_line));
7017 line.clear();
7018 styles.clear();
7019 }
7020
7021 match replacement {
7022 ChunkReplacement::Renderer(renderer) => {
7023 let available_width = if renderer.constrain_width {
7024 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
7025 ellipsis.clone()
7026 } else {
7027 SharedString::from(Arc::from(highlighted_chunk.text))
7028 };
7029 let shaped_line = window.text_system().shape_line(
7030 chunk,
7031 font_size,
7032 &[text_style.to_run(highlighted_chunk.text.len())],
7033 );
7034 AvailableSpace::Definite(shaped_line.width)
7035 } else {
7036 AvailableSpace::MinContent
7037 };
7038
7039 let mut element = (renderer.render)(&mut ChunkRendererContext {
7040 context: cx,
7041 window,
7042 max_width: text_width,
7043 });
7044 let line_height = text_style.line_height_in_pixels(window.rem_size());
7045 let size = element.layout_as_root(
7046 size(available_width, AvailableSpace::Definite(line_height)),
7047 window,
7048 cx,
7049 );
7050
7051 width += size.width;
7052 len += highlighted_chunk.text.len();
7053 fragments.push(LineFragment::Element {
7054 id: renderer.id,
7055 element: Some(element),
7056 size,
7057 len: highlighted_chunk.text.len(),
7058 });
7059 }
7060 ChunkReplacement::Str(x) => {
7061 let text_style = if let Some(style) = highlighted_chunk.style {
7062 Cow::Owned(text_style.clone().highlight(style))
7063 } else {
7064 Cow::Borrowed(text_style)
7065 };
7066
7067 let run = TextRun {
7068 len: x.len(),
7069 font: text_style.font(),
7070 color: text_style.color,
7071 background_color: text_style.background_color,
7072 underline: text_style.underline,
7073 strikethrough: text_style.strikethrough,
7074 };
7075 let line_layout = window
7076 .text_system()
7077 .shape_line(x, font_size, &[run])
7078 .with_len(highlighted_chunk.text.len());
7079
7080 width += line_layout.width;
7081 len += highlighted_chunk.text.len();
7082 fragments.push(LineFragment::Text(line_layout))
7083 }
7084 }
7085 } else {
7086 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
7087 if ix > 0 {
7088 let shaped_line = window.text_system().shape_line(
7089 line.clone().into(),
7090 font_size,
7091 &styles,
7092 );
7093 width += shaped_line.width;
7094 len += shaped_line.len;
7095 fragments.push(LineFragment::Text(shaped_line));
7096 layouts.push(Self {
7097 width: mem::take(&mut width),
7098 len: mem::take(&mut len),
7099 fragments: mem::take(&mut fragments),
7100 invisibles: std::mem::take(&mut invisibles),
7101 font_size,
7102 });
7103
7104 line.clear();
7105 styles.clear();
7106 row += 1;
7107 line_exceeded_max_len = false;
7108 non_whitespace_added = false;
7109 if row == max_line_count {
7110 return layouts;
7111 }
7112 }
7113
7114 if !line_chunk.is_empty() && !line_exceeded_max_len {
7115 let text_style = if let Some(style) = highlighted_chunk.style {
7116 Cow::Owned(text_style.clone().highlight(style))
7117 } else {
7118 Cow::Borrowed(text_style)
7119 };
7120
7121 if line.len() + line_chunk.len() > max_line_len {
7122 let mut chunk_len = max_line_len - line.len();
7123 while !line_chunk.is_char_boundary(chunk_len) {
7124 chunk_len -= 1;
7125 }
7126 line_chunk = &line_chunk[..chunk_len];
7127 line_exceeded_max_len = true;
7128 }
7129
7130 styles.push(TextRun {
7131 len: line_chunk.len(),
7132 font: text_style.font(),
7133 color: text_style.color,
7134 background_color: text_style.background_color,
7135 underline: text_style.underline,
7136 strikethrough: text_style.strikethrough,
7137 });
7138
7139 if editor_mode.is_full() && !highlighted_chunk.is_inlay {
7140 // Line wrap pads its contents with fake whitespaces,
7141 // avoid printing them
7142 let is_soft_wrapped = is_row_soft_wrapped(row);
7143 if highlighted_chunk.is_tab {
7144 if non_whitespace_added || !is_soft_wrapped {
7145 invisibles.push(Invisible::Tab {
7146 line_start_offset: line.len(),
7147 line_end_offset: line.len() + line_chunk.len(),
7148 });
7149 }
7150 } else {
7151 invisibles.extend(line_chunk.char_indices().filter_map(
7152 |(index, c)| {
7153 let is_whitespace = c.is_whitespace();
7154 non_whitespace_added |= !is_whitespace;
7155 if is_whitespace
7156 && (non_whitespace_added || !is_soft_wrapped)
7157 {
7158 Some(Invisible::Whitespace {
7159 line_offset: line.len() + index,
7160 })
7161 } else {
7162 None
7163 }
7164 },
7165 ))
7166 }
7167 }
7168
7169 line.push_str(line_chunk);
7170 }
7171 }
7172 }
7173 }
7174
7175 layouts
7176 }
7177
7178 fn prepaint(
7179 &mut self,
7180 line_height: Pixels,
7181 scroll_pixel_position: gpui::Point<Pixels>,
7182 row: DisplayRow,
7183 content_origin: gpui::Point<Pixels>,
7184 line_elements: &mut SmallVec<[AnyElement; 1]>,
7185 window: &mut Window,
7186 cx: &mut App,
7187 ) {
7188 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
7189 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
7190 for fragment in &mut self.fragments {
7191 match fragment {
7192 LineFragment::Text(line) => {
7193 fragment_origin.x += line.width;
7194 }
7195 LineFragment::Element { element, size, .. } => {
7196 let mut element = element
7197 .take()
7198 .expect("you can't prepaint LineWithInvisibles twice");
7199
7200 // Center the element vertically within the line.
7201 let mut element_origin = fragment_origin;
7202 element_origin.y += (line_height - size.height) / 2.;
7203 element.prepaint_at(element_origin, window, cx);
7204 line_elements.push(element);
7205
7206 fragment_origin.x += size.width;
7207 }
7208 }
7209 }
7210 }
7211
7212 fn draw(
7213 &self,
7214 layout: &EditorLayout,
7215 row: DisplayRow,
7216 content_origin: gpui::Point<Pixels>,
7217 whitespace_setting: ShowWhitespaceSetting,
7218 selection_ranges: &[Range<DisplayPoint>],
7219 window: &mut Window,
7220 cx: &mut App,
7221 ) {
7222 let line_height = layout.position_map.line_height;
7223 let line_y = line_height
7224 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
7225
7226 let mut fragment_origin =
7227 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
7228
7229 for fragment in &self.fragments {
7230 match fragment {
7231 LineFragment::Text(line) => {
7232 line.paint(fragment_origin, line_height, window, cx)
7233 .log_err();
7234 fragment_origin.x += line.width;
7235 }
7236 LineFragment::Element { size, .. } => {
7237 fragment_origin.x += size.width;
7238 }
7239 }
7240 }
7241
7242 self.draw_invisibles(
7243 selection_ranges,
7244 layout,
7245 content_origin,
7246 line_y,
7247 row,
7248 line_height,
7249 whitespace_setting,
7250 window,
7251 cx,
7252 );
7253 }
7254
7255 fn draw_background(
7256 &self,
7257 layout: &EditorLayout,
7258 row: DisplayRow,
7259 content_origin: gpui::Point<Pixels>,
7260 window: &mut Window,
7261 cx: &mut App,
7262 ) {
7263 let line_height = layout.position_map.line_height;
7264 let line_y = line_height
7265 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
7266
7267 let mut fragment_origin =
7268 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
7269
7270 for fragment in &self.fragments {
7271 match fragment {
7272 LineFragment::Text(line) => {
7273 line.paint_background(fragment_origin, line_height, window, cx)
7274 .log_err();
7275 fragment_origin.x += line.width;
7276 }
7277 LineFragment::Element { size, .. } => {
7278 fragment_origin.x += size.width;
7279 }
7280 }
7281 }
7282 }
7283
7284 fn draw_invisibles(
7285 &self,
7286 selection_ranges: &[Range<DisplayPoint>],
7287 layout: &EditorLayout,
7288 content_origin: gpui::Point<Pixels>,
7289 line_y: Pixels,
7290 row: DisplayRow,
7291 line_height: Pixels,
7292 whitespace_setting: ShowWhitespaceSetting,
7293 window: &mut Window,
7294 cx: &mut App,
7295 ) {
7296 let extract_whitespace_info = |invisible: &Invisible| {
7297 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
7298 Invisible::Tab {
7299 line_start_offset,
7300 line_end_offset,
7301 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
7302 Invisible::Whitespace { line_offset } => {
7303 (*line_offset, line_offset + 1, &layout.space_invisible)
7304 }
7305 };
7306
7307 let x_offset = self.x_for_index(token_offset);
7308 let invisible_offset =
7309 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
7310 let origin = content_origin
7311 + gpui::point(
7312 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
7313 line_y,
7314 );
7315
7316 (
7317 [token_offset, token_end_offset],
7318 Box::new(move |window: &mut Window, cx: &mut App| {
7319 invisible_symbol
7320 .paint(origin, line_height, window, cx)
7321 .log_err();
7322 }),
7323 )
7324 };
7325
7326 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
7327 match whitespace_setting {
7328 ShowWhitespaceSetting::None => (),
7329 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
7330 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
7331 let invisible_point = DisplayPoint::new(row, start as u32);
7332 if !selection_ranges
7333 .iter()
7334 .any(|region| region.start <= invisible_point && invisible_point < region.end)
7335 {
7336 return;
7337 }
7338
7339 paint(window, cx);
7340 }),
7341
7342 ShowWhitespaceSetting::Trailing => {
7343 let mut previous_start = self.len;
7344 for ([start, end], paint) in invisible_iter.rev() {
7345 if previous_start != end {
7346 break;
7347 }
7348 previous_start = start;
7349 paint(window, cx);
7350 }
7351 }
7352
7353 // For a whitespace to be on a boundary, any of the following conditions need to be met:
7354 // - It is a tab
7355 // - It is adjacent to an edge (start or end)
7356 // - It is adjacent to a whitespace (left or right)
7357 ShowWhitespaceSetting::Boundary => {
7358 // 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
7359 // the above cases.
7360 // Note: We zip in the original `invisibles` to check for tab equality
7361 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
7362 for (([start, end], paint), invisible) in
7363 invisible_iter.zip_eq(self.invisibles.iter())
7364 {
7365 let should_render = match (&last_seen, invisible) {
7366 (_, Invisible::Tab { .. }) => true,
7367 (Some((_, last_end, _)), _) => *last_end == start,
7368 _ => false,
7369 };
7370
7371 if should_render || start == 0 || end == self.len {
7372 paint(window, cx);
7373
7374 // Since we are scanning from the left, we will skip over the first available whitespace that is part
7375 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
7376 if let Some((should_render_last, last_end, paint_last)) = last_seen {
7377 // Note that we need to make sure that the last one is actually adjacent
7378 if !should_render_last && last_end == start {
7379 paint_last(window, cx);
7380 }
7381 }
7382 }
7383
7384 // Manually render anything within a selection
7385 let invisible_point = DisplayPoint::new(row, start as u32);
7386 if selection_ranges.iter().any(|region| {
7387 region.start <= invisible_point && invisible_point < region.end
7388 }) {
7389 paint(window, cx);
7390 }
7391
7392 last_seen = Some((should_render, end, paint));
7393 }
7394 }
7395 }
7396 }
7397
7398 pub fn x_for_index(&self, index: usize) -> Pixels {
7399 let mut fragment_start_x = Pixels::ZERO;
7400 let mut fragment_start_index = 0;
7401
7402 for fragment in &self.fragments {
7403 match fragment {
7404 LineFragment::Text(shaped_line) => {
7405 let fragment_end_index = fragment_start_index + shaped_line.len;
7406 if index < fragment_end_index {
7407 return fragment_start_x
7408 + shaped_line.x_for_index(index - fragment_start_index);
7409 }
7410 fragment_start_x += shaped_line.width;
7411 fragment_start_index = fragment_end_index;
7412 }
7413 LineFragment::Element { len, size, .. } => {
7414 let fragment_end_index = fragment_start_index + len;
7415 if index < fragment_end_index {
7416 return fragment_start_x;
7417 }
7418 fragment_start_x += size.width;
7419 fragment_start_index = fragment_end_index;
7420 }
7421 }
7422 }
7423
7424 fragment_start_x
7425 }
7426
7427 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
7428 let mut fragment_start_x = Pixels::ZERO;
7429 let mut fragment_start_index = 0;
7430
7431 for fragment in &self.fragments {
7432 match fragment {
7433 LineFragment::Text(shaped_line) => {
7434 let fragment_end_x = fragment_start_x + shaped_line.width;
7435 if x < fragment_end_x {
7436 return Some(
7437 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
7438 );
7439 }
7440 fragment_start_x = fragment_end_x;
7441 fragment_start_index += shaped_line.len;
7442 }
7443 LineFragment::Element { len, size, .. } => {
7444 let fragment_end_x = fragment_start_x + size.width;
7445 if x < fragment_end_x {
7446 return Some(fragment_start_index);
7447 }
7448 fragment_start_index += len;
7449 fragment_start_x = fragment_end_x;
7450 }
7451 }
7452 }
7453
7454 None
7455 }
7456
7457 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
7458 let mut fragment_start_index = 0;
7459
7460 for fragment in &self.fragments {
7461 match fragment {
7462 LineFragment::Text(shaped_line) => {
7463 let fragment_end_index = fragment_start_index + shaped_line.len;
7464 if index < fragment_end_index {
7465 return shaped_line.font_id_for_index(index - fragment_start_index);
7466 }
7467 fragment_start_index = fragment_end_index;
7468 }
7469 LineFragment::Element { len, .. } => {
7470 let fragment_end_index = fragment_start_index + len;
7471 if index < fragment_end_index {
7472 return None;
7473 }
7474 fragment_start_index = fragment_end_index;
7475 }
7476 }
7477 }
7478
7479 None
7480 }
7481}
7482
7483#[derive(Debug, Clone, Copy, PartialEq, Eq)]
7484enum Invisible {
7485 /// A tab character
7486 ///
7487 /// A tab character is internally represented by spaces (configured by the user's tab width)
7488 /// aligned to the nearest column, so it's necessary to store the start and end offset for
7489 /// adjacency checks.
7490 Tab {
7491 line_start_offset: usize,
7492 line_end_offset: usize,
7493 },
7494 Whitespace {
7495 line_offset: usize,
7496 },
7497}
7498
7499impl EditorElement {
7500 /// Returns the rem size to use when rendering the [`EditorElement`].
7501 ///
7502 /// This allows UI elements to scale based on the `buffer_font_size`.
7503 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
7504 match self.editor.read(cx).mode {
7505 EditorMode::Full {
7506 scale_ui_elements_with_buffer_font_size: true,
7507 ..
7508 }
7509 | EditorMode::Minimap { .. } => {
7510 let buffer_font_size = self.style.text.font_size;
7511 match buffer_font_size {
7512 AbsoluteLength::Pixels(pixels) => {
7513 let rem_size_scale = {
7514 // Our default UI font size is 14px on a 16px base scale.
7515 // This means the default UI font size is 0.875rems.
7516 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
7517
7518 // We then determine the delta between a single rem and the default font
7519 // size scale.
7520 let default_font_size_delta = 1. - default_font_size_scale;
7521
7522 // Finally, we add this delta to 1rem to get the scale factor that
7523 // should be used to scale up the UI.
7524 1. + default_font_size_delta
7525 };
7526
7527 Some(pixels * rem_size_scale)
7528 }
7529 AbsoluteLength::Rems(rems) => {
7530 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
7531 }
7532 }
7533 }
7534 // We currently use single-line and auto-height editors in UI contexts,
7535 // so we don't want to scale everything with the buffer font size, as it
7536 // ends up looking off.
7537 _ => None,
7538 }
7539 }
7540
7541 fn editor_with_selections(&self, cx: &App) -> Option<Entity<Editor>> {
7542 if let EditorMode::Minimap { parent } = self.editor.read(cx).mode() {
7543 parent.upgrade()
7544 } else {
7545 Some(self.editor.clone())
7546 }
7547 }
7548}
7549
7550impl Element for EditorElement {
7551 type RequestLayoutState = ();
7552 type PrepaintState = EditorLayout;
7553
7554 fn id(&self) -> Option<ElementId> {
7555 None
7556 }
7557
7558 fn source_location(&self) -> Option<&'static core::panic::Location<'static>> {
7559 None
7560 }
7561
7562 fn request_layout(
7563 &mut self,
7564 _: Option<&GlobalElementId>,
7565 __inspector_id: Option<&gpui::InspectorElementId>,
7566 window: &mut Window,
7567 cx: &mut App,
7568 ) -> (gpui::LayoutId, ()) {
7569 let rem_size = self.rem_size(cx);
7570 window.with_rem_size(rem_size, |window| {
7571 self.editor.update(cx, |editor, cx| {
7572 editor.set_style(self.style.clone(), window, cx);
7573
7574 let layout_id = match editor.mode {
7575 EditorMode::SingleLine { auto_width } => {
7576 let rem_size = window.rem_size();
7577
7578 let height = self.style.text.line_height_in_pixels(rem_size);
7579 if auto_width {
7580 let editor_handle = cx.entity().clone();
7581 let style = self.style.clone();
7582 window.request_measured_layout(
7583 Style::default(),
7584 move |_, _, window, cx| {
7585 let editor_snapshot = editor_handle
7586 .update(cx, |editor, cx| editor.snapshot(window, cx));
7587 let line = Self::layout_lines(
7588 DisplayRow(0)..DisplayRow(1),
7589 &editor_snapshot,
7590 &style,
7591 px(f32::MAX),
7592 |_| false, // Single lines never soft wrap
7593 window,
7594 cx,
7595 )
7596 .pop()
7597 .unwrap();
7598
7599 let font_id =
7600 window.text_system().resolve_font(&style.text.font());
7601 let font_size =
7602 style.text.font_size.to_pixels(window.rem_size());
7603 let em_width =
7604 window.text_system().em_width(font_id, font_size).unwrap();
7605
7606 size(line.width + em_width, height)
7607 },
7608 )
7609 } else {
7610 let mut style = Style::default();
7611 style.size.height = height.into();
7612 style.size.width = relative(1.).into();
7613 window.request_layout(style, None, cx)
7614 }
7615 }
7616 EditorMode::AutoHeight { max_lines } => {
7617 let editor_handle = cx.entity().clone();
7618 let max_line_number_width =
7619 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
7620 window.request_measured_layout(
7621 Style::default(),
7622 move |known_dimensions, available_space, window, cx| {
7623 editor_handle
7624 .update(cx, |editor, cx| {
7625 compute_auto_height_layout(
7626 editor,
7627 max_lines,
7628 max_line_number_width,
7629 known_dimensions,
7630 available_space.width,
7631 window,
7632 cx,
7633 )
7634 })
7635 .unwrap_or_default()
7636 },
7637 )
7638 }
7639 EditorMode::Minimap { .. } => {
7640 let mut style = Style::default();
7641 style.size.width = relative(1.).into();
7642 style.size.height = relative(1.).into();
7643 window.request_layout(style, None, cx)
7644 }
7645 EditorMode::Full {
7646 sized_by_content, ..
7647 } => {
7648 let mut style = Style::default();
7649 style.size.width = relative(1.).into();
7650 if sized_by_content {
7651 let snapshot = editor.snapshot(window, cx);
7652 let line_height =
7653 self.style.text.line_height_in_pixels(window.rem_size());
7654 let scroll_height =
7655 (snapshot.max_point().row().next_row().0 as f32) * line_height;
7656 style.size.height = scroll_height.into();
7657 } else {
7658 style.size.height = relative(1.).into();
7659 }
7660 window.request_layout(style, None, cx)
7661 }
7662 };
7663
7664 (layout_id, ())
7665 })
7666 })
7667 }
7668
7669 fn prepaint(
7670 &mut self,
7671 _: Option<&GlobalElementId>,
7672 _inspector_id: Option<&gpui::InspectorElementId>,
7673 bounds: Bounds<Pixels>,
7674 _: &mut Self::RequestLayoutState,
7675 window: &mut Window,
7676 cx: &mut App,
7677 ) -> Self::PrepaintState {
7678 let text_style = TextStyleRefinement {
7679 font_size: Some(self.style.text.font_size),
7680 line_height: Some(self.style.text.line_height),
7681 ..Default::default()
7682 };
7683 let focus_handle = self.editor.focus_handle(cx);
7684 window.set_view_id(self.editor.entity_id());
7685 window.set_focus_handle(&focus_handle, cx);
7686
7687 let rem_size = self.rem_size(cx);
7688 window.with_rem_size(rem_size, |window| {
7689 window.with_text_style(Some(text_style), |window| {
7690 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7691 let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| {
7692 (editor.snapshot(window, cx), editor.read_only(cx))
7693 });
7694 let style = self.style.clone();
7695
7696 let font_id = window.text_system().resolve_font(&style.text.font());
7697 let font_size = style.text.font_size.to_pixels(window.rem_size());
7698 let line_height = style.text.line_height_in_pixels(window.rem_size());
7699 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
7700 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
7701
7702 let glyph_grid_cell = size(em_width, line_height);
7703
7704 let gutter_dimensions = snapshot
7705 .gutter_dimensions(
7706 font_id,
7707 font_size,
7708 self.max_line_number_width(&snapshot, window, cx),
7709 cx,
7710 )
7711 .or_else(|| {
7712 self.editor.read(cx).offset_content.then(|| {
7713 GutterDimensions::default_with_margin(font_id, font_size, cx)
7714 })
7715 })
7716 .unwrap_or_default();
7717 let text_width = bounds.size.width - gutter_dimensions.width;
7718
7719 let settings = EditorSettings::get_global(cx);
7720 let scrollbars_shown = settings.scrollbar.show != ShowScrollbar::Never;
7721 let vertical_scrollbar_width = (scrollbars_shown
7722 && settings.scrollbar.axes.vertical
7723 && self.editor.read(cx).show_scrollbars.vertical)
7724 .then_some(style.scrollbar_width)
7725 .unwrap_or_default();
7726 let minimap_width = self
7727 .editor
7728 .read(cx)
7729 .minimap()
7730 .is_some()
7731 .then(|| match settings.minimap.show {
7732 ShowMinimap::Auto => {
7733 scrollbars_shown.then_some(MinimapLayout::MINIMAP_WIDTH)
7734 }
7735 _ => Some(MinimapLayout::MINIMAP_WIDTH),
7736 })
7737 .flatten()
7738 .filter(|minimap_width| {
7739 text_width - vertical_scrollbar_width - *minimap_width > *minimap_width
7740 })
7741 .unwrap_or_default();
7742
7743 let right_margin = minimap_width + vertical_scrollbar_width;
7744
7745 let editor_width =
7746 text_width - gutter_dimensions.margin - 2 * em_width - right_margin;
7747
7748 let editor_margins = EditorMargins {
7749 gutter: gutter_dimensions,
7750 right: right_margin,
7751 };
7752
7753 // Offset the content_bounds from the text_bounds by the gutter margin (which
7754 // is roughly half a character wide) to make hit testing work more like how we want.
7755 let content_offset = point(editor_margins.gutter.margin, Pixels::ZERO);
7756
7757 let editor_content_width = editor_width - content_offset.x;
7758
7759 snapshot = self.editor.update(cx, |editor, cx| {
7760 editor.last_bounds = Some(bounds);
7761 editor.gutter_dimensions = gutter_dimensions;
7762 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
7763
7764 if matches!(
7765 editor.mode,
7766 EditorMode::AutoHeight { .. } | EditorMode::Minimap { .. }
7767 ) {
7768 snapshot
7769 } else {
7770 let wrap_width_for = |column: u32| (column as f32 * em_advance).ceil();
7771 let wrap_width = match editor.soft_wrap_mode(cx) {
7772 SoftWrap::GitDiff => None,
7773 SoftWrap::None => Some(wrap_width_for(MAX_LINE_LEN as u32 / 2)),
7774 SoftWrap::EditorWidth => Some(editor_content_width),
7775 SoftWrap::Column(column) => Some(wrap_width_for(column)),
7776 SoftWrap::Bounded(column) => {
7777 Some(editor_content_width.min(wrap_width_for(column)))
7778 }
7779 };
7780
7781 if editor.set_wrap_width(wrap_width, cx) {
7782 editor.snapshot(window, cx)
7783 } else {
7784 snapshot
7785 }
7786 }
7787 });
7788
7789 let wrap_guides = self
7790 .editor
7791 .read(cx)
7792 .wrap_guides(cx)
7793 .iter()
7794 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
7795 .collect::<SmallVec<[_; 2]>>();
7796
7797 let hitbox = window.insert_hitbox(bounds, HitboxBehavior::Normal);
7798 let gutter_hitbox = window.insert_hitbox(
7799 gutter_bounds(bounds, gutter_dimensions),
7800 HitboxBehavior::Normal,
7801 );
7802 let text_hitbox = window.insert_hitbox(
7803 Bounds {
7804 origin: gutter_hitbox.top_right(),
7805 size: size(text_width, bounds.size.height),
7806 },
7807 HitboxBehavior::Normal,
7808 );
7809
7810 let content_origin = text_hitbox.origin + content_offset;
7811
7812 let editor_text_bounds =
7813 Bounds::from_corners(content_origin, bounds.bottom_right());
7814
7815 let height_in_lines = editor_text_bounds.size.height / line_height;
7816
7817 let max_row = snapshot.max_point().row().as_f32();
7818
7819 // The max scroll position for the top of the window
7820 let max_scroll_top = if matches!(
7821 snapshot.mode,
7822 EditorMode::SingleLine { .. }
7823 | EditorMode::AutoHeight { .. }
7824 | EditorMode::Full {
7825 sized_by_content: true,
7826 ..
7827 }
7828 ) {
7829 (max_row - height_in_lines + 1.).max(0.)
7830 } else {
7831 let settings = EditorSettings::get_global(cx);
7832 match settings.scroll_beyond_last_line {
7833 ScrollBeyondLastLine::OnePage => max_row,
7834 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
7835 ScrollBeyondLastLine::VerticalScrollMargin => {
7836 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
7837 .max(0.)
7838 }
7839 }
7840 };
7841
7842 // TODO: Autoscrolling for both axes
7843 let mut autoscroll_request = None;
7844 let mut autoscroll_containing_element = false;
7845 let mut autoscroll_horizontally = false;
7846 self.editor.update(cx, |editor, cx| {
7847 autoscroll_request = editor.autoscroll_request();
7848 autoscroll_containing_element =
7849 autoscroll_request.is_some() || editor.has_pending_selection();
7850 // TODO: Is this horizontal or vertical?!
7851 autoscroll_horizontally = editor.autoscroll_vertically(
7852 bounds,
7853 line_height,
7854 max_scroll_top,
7855 window,
7856 cx,
7857 );
7858 snapshot = editor.snapshot(window, cx);
7859 });
7860
7861 let mut scroll_position = snapshot.scroll_position();
7862 // The scroll position is a fractional point, the whole number of which represents
7863 // the top of the window in terms of display rows.
7864 let start_row = DisplayRow(scroll_position.y as u32);
7865 let max_row = snapshot.max_point().row();
7866 let end_row = cmp::min(
7867 (scroll_position.y + height_in_lines).ceil() as u32,
7868 max_row.next_row().0,
7869 );
7870 let end_row = DisplayRow(end_row);
7871
7872 let row_infos = snapshot
7873 .row_infos(start_row)
7874 .take((start_row..end_row).len())
7875 .collect::<Vec<RowInfo>>();
7876 let is_row_soft_wrapped = |row: usize| {
7877 row_infos
7878 .get(row)
7879 .map_or(true, |info| info.buffer_row.is_none())
7880 };
7881
7882 let start_anchor = if start_row == Default::default() {
7883 Anchor::min()
7884 } else {
7885 snapshot.buffer_snapshot.anchor_before(
7886 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
7887 )
7888 };
7889 let end_anchor = if end_row > max_row {
7890 Anchor::max()
7891 } else {
7892 snapshot.buffer_snapshot.anchor_before(
7893 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
7894 )
7895 };
7896
7897 let mut highlighted_rows = self
7898 .editor
7899 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
7900
7901 let is_light = cx.theme().appearance().is_light();
7902
7903 for (ix, row_info) in row_infos.iter().enumerate() {
7904 let Some(diff_status) = row_info.diff_status else {
7905 continue;
7906 };
7907
7908 let background_color = match diff_status.kind {
7909 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
7910 DiffHunkStatusKind::Deleted => {
7911 cx.theme().colors().version_control_deleted
7912 }
7913 DiffHunkStatusKind::Modified => {
7914 debug_panic!("modified diff status for row info");
7915 continue;
7916 }
7917 };
7918
7919 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
7920
7921 let hollow_highlight = LineHighlight {
7922 background: (background_color.opacity(if is_light {
7923 0.08
7924 } else {
7925 0.06
7926 }))
7927 .into(),
7928 border: Some(if is_light {
7929 background_color.opacity(0.48)
7930 } else {
7931 background_color.opacity(0.36)
7932 }),
7933 include_gutter: true,
7934 type_id: None,
7935 };
7936
7937 let filled_highlight = LineHighlight {
7938 background: solid_background(background_color.opacity(hunk_opacity)),
7939 border: None,
7940 include_gutter: true,
7941 type_id: None,
7942 };
7943
7944 let background = if Self::diff_hunk_hollow(diff_status, cx) {
7945 hollow_highlight
7946 } else {
7947 filled_highlight
7948 };
7949
7950 highlighted_rows
7951 .entry(start_row + DisplayRow(ix as u32))
7952 .or_insert(background);
7953 }
7954
7955 let highlighted_ranges = self
7956 .editor_with_selections(cx)
7957 .map(|editor| {
7958 editor.read(cx).background_highlights_in_range(
7959 start_anchor..end_anchor,
7960 &snapshot.display_snapshot,
7961 cx.theme(),
7962 )
7963 })
7964 .unwrap_or_default();
7965 let highlighted_gutter_ranges =
7966 self.editor.read(cx).gutter_highlights_in_range(
7967 start_anchor..end_anchor,
7968 &snapshot.display_snapshot,
7969 cx,
7970 );
7971
7972 let redacted_ranges = self.editor.read(cx).redacted_ranges(
7973 start_anchor..end_anchor,
7974 &snapshot.display_snapshot,
7975 cx,
7976 );
7977
7978 let (local_selections, selected_buffer_ids): (
7979 Vec<Selection<Point>>,
7980 Vec<BufferId>,
7981 ) = self
7982 .editor_with_selections(cx)
7983 .map(|editor| {
7984 editor.update(cx, |editor, cx| {
7985 let all_selections = editor.selections.all::<Point>(cx);
7986 let selected_buffer_ids = if editor.is_singleton(cx) {
7987 Vec::new()
7988 } else {
7989 let mut selected_buffer_ids =
7990 Vec::with_capacity(all_selections.len());
7991
7992 for selection in all_selections {
7993 for buffer_id in snapshot
7994 .buffer_snapshot
7995 .buffer_ids_for_range(selection.range())
7996 {
7997 if selected_buffer_ids.last() != Some(&buffer_id) {
7998 selected_buffer_ids.push(buffer_id);
7999 }
8000 }
8001 }
8002
8003 selected_buffer_ids
8004 };
8005
8006 let mut selections = editor
8007 .selections
8008 .disjoint_in_range(start_anchor..end_anchor, cx);
8009 selections.extend(editor.selections.pending(cx));
8010
8011 (selections, selected_buffer_ids)
8012 })
8013 })
8014 .unwrap_or_default();
8015
8016 let (selections, mut active_rows, newest_selection_head) = self
8017 .layout_selections(
8018 start_anchor,
8019 end_anchor,
8020 &local_selections,
8021 &snapshot,
8022 start_row,
8023 end_row,
8024 window,
8025 cx,
8026 );
8027 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
8028 editor.active_breakpoints(start_row..end_row, window, cx)
8029 });
8030 for (display_row, (_, bp, state)) in &breakpoint_rows {
8031 if bp.is_enabled() && state.is_none_or(|s| s.verified) {
8032 active_rows.entry(*display_row).or_default().breakpoint = true;
8033 }
8034 }
8035
8036 let line_numbers = self.layout_line_numbers(
8037 Some(&gutter_hitbox),
8038 gutter_dimensions,
8039 line_height,
8040 scroll_position,
8041 start_row..end_row,
8042 &row_infos,
8043 &active_rows,
8044 newest_selection_head,
8045 &snapshot,
8046 window,
8047 cx,
8048 );
8049
8050 // We add the gutter breakpoint indicator to breakpoint_rows after painting
8051 // line numbers so we don't paint a line number debug accent color if a user
8052 // has their mouse over that line when a breakpoint isn't there
8053 self.editor.update(cx, |editor, _| {
8054 if let Some(phantom_breakpoint) = &mut editor
8055 .gutter_breakpoint_indicator
8056 .0
8057 .filter(|phantom_breakpoint| phantom_breakpoint.is_active)
8058 {
8059 // Is there a non-phantom breakpoint on this line?
8060 phantom_breakpoint.collides_with_existing_breakpoint = true;
8061 breakpoint_rows
8062 .entry(phantom_breakpoint.display_row)
8063 .or_insert_with(|| {
8064 let position = snapshot.display_point_to_anchor(
8065 DisplayPoint::new(phantom_breakpoint.display_row, 0),
8066 Bias::Right,
8067 );
8068 let breakpoint = Breakpoint::new_standard();
8069 phantom_breakpoint.collides_with_existing_breakpoint = false;
8070 (position, breakpoint, None)
8071 });
8072 }
8073 });
8074
8075 let mut expand_toggles =
8076 window.with_element_namespace("expand_toggles", |window| {
8077 self.layout_expand_toggles(
8078 &gutter_hitbox,
8079 gutter_dimensions,
8080 em_width,
8081 line_height,
8082 scroll_position,
8083 &row_infos,
8084 window,
8085 cx,
8086 )
8087 });
8088
8089 let mut crease_toggles =
8090 window.with_element_namespace("crease_toggles", |window| {
8091 self.layout_crease_toggles(
8092 start_row..end_row,
8093 &row_infos,
8094 &active_rows,
8095 &snapshot,
8096 window,
8097 cx,
8098 )
8099 });
8100 let crease_trailers =
8101 window.with_element_namespace("crease_trailers", |window| {
8102 self.layout_crease_trailers(
8103 row_infos.iter().copied(),
8104 &snapshot,
8105 window,
8106 cx,
8107 )
8108 });
8109
8110 let display_hunks = self.layout_gutter_diff_hunks(
8111 line_height,
8112 &gutter_hitbox,
8113 start_row..end_row,
8114 &snapshot,
8115 window,
8116 cx,
8117 );
8118
8119 let mut line_layouts = Self::layout_lines(
8120 start_row..end_row,
8121 &snapshot,
8122 &self.style,
8123 editor_width,
8124 is_row_soft_wrapped,
8125 window,
8126 cx,
8127 );
8128 let new_fold_widths = line_layouts
8129 .iter()
8130 .flat_map(|layout| &layout.fragments)
8131 .filter_map(|fragment| {
8132 if let LineFragment::Element { id, size, .. } = fragment {
8133 Some((*id, size.width))
8134 } else {
8135 None
8136 }
8137 });
8138 if self.editor.update(cx, |editor, cx| {
8139 editor.update_fold_widths(new_fold_widths, cx)
8140 }) {
8141 // If the fold widths have changed, we need to prepaint
8142 // the element again to account for any changes in
8143 // wrapping.
8144 return self.prepaint(None, _inspector_id, bounds, &mut (), window, cx);
8145 }
8146
8147 let longest_line_blame_width = self
8148 .editor
8149 .update(cx, |editor, cx| {
8150 if !editor.show_git_blame_inline {
8151 return None;
8152 }
8153 let blame = editor.blame.as_ref()?;
8154 let blame_entry = blame
8155 .update(cx, |blame, cx| {
8156 let row_infos =
8157 snapshot.row_infos(snapshot.longest_row()).next()?;
8158 blame.blame_for_rows(&[row_infos], cx).next()
8159 })
8160 .flatten()?;
8161 let mut element = render_inline_blame_entry(blame_entry, &style, cx)?;
8162 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
8163 Some(
8164 element
8165 .layout_as_root(AvailableSpace::min_size(), window, cx)
8166 .width
8167 + inline_blame_padding,
8168 )
8169 })
8170 .unwrap_or(Pixels::ZERO);
8171
8172 let longest_line_width = layout_line(
8173 snapshot.longest_row(),
8174 &snapshot,
8175 &style,
8176 editor_width,
8177 is_row_soft_wrapped,
8178 window,
8179 cx,
8180 )
8181 .width;
8182
8183 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
8184 text_hitbox.bounds,
8185 glyph_grid_cell,
8186 size(longest_line_width, max_row.as_f32() * line_height),
8187 longest_line_blame_width,
8188 editor_width,
8189 EditorSettings::get_global(cx),
8190 );
8191
8192 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
8193
8194 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
8195 snapshot.sticky_header_excerpt(scroll_position.y)
8196 } else {
8197 None
8198 };
8199 let sticky_header_excerpt_id =
8200 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
8201
8202 let blocks = window.with_element_namespace("blocks", |window| {
8203 self.render_blocks(
8204 start_row..end_row,
8205 &snapshot,
8206 &hitbox,
8207 &text_hitbox,
8208 editor_width,
8209 &mut scroll_width,
8210 &editor_margins,
8211 em_width,
8212 gutter_dimensions.full_width(),
8213 line_height,
8214 &mut line_layouts,
8215 &local_selections,
8216 &selected_buffer_ids,
8217 is_row_soft_wrapped,
8218 sticky_header_excerpt_id,
8219 window,
8220 cx,
8221 )
8222 });
8223 let (mut blocks, row_block_types) = match blocks {
8224 Ok(blocks) => blocks,
8225 Err(resized_blocks) => {
8226 self.editor.update(cx, |editor, cx| {
8227 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
8228 });
8229 return self.prepaint(None, _inspector_id, bounds, &mut (), window, cx);
8230 }
8231 };
8232
8233 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
8234 window.with_element_namespace("blocks", |window| {
8235 self.layout_sticky_buffer_header(
8236 sticky_header_excerpt,
8237 scroll_position.y,
8238 line_height,
8239 right_margin,
8240 &snapshot,
8241 &hitbox,
8242 &selected_buffer_ids,
8243 &blocks,
8244 window,
8245 cx,
8246 )
8247 })
8248 });
8249
8250 let start_buffer_row =
8251 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
8252 let end_buffer_row =
8253 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
8254
8255 let scroll_max = point(
8256 ((scroll_width - editor_content_width) / em_width).max(0.0),
8257 max_scroll_top,
8258 );
8259
8260 self.editor.update(cx, |editor, cx| {
8261 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
8262
8263 let autoscrolled = if autoscroll_horizontally {
8264 editor.autoscroll_horizontally(
8265 start_row,
8266 editor_content_width,
8267 scroll_width,
8268 em_width,
8269 &line_layouts,
8270 cx,
8271 )
8272 } else {
8273 false
8274 };
8275
8276 if clamped || autoscrolled {
8277 snapshot = editor.snapshot(window, cx);
8278 scroll_position = snapshot.scroll_position();
8279 }
8280 });
8281
8282 let scroll_pixel_position = point(
8283 scroll_position.x * em_width,
8284 scroll_position.y * line_height,
8285 );
8286
8287 let indent_guides = self.layout_indent_guides(
8288 content_origin,
8289 text_hitbox.origin,
8290 start_buffer_row..end_buffer_row,
8291 scroll_pixel_position,
8292 line_height,
8293 &snapshot,
8294 window,
8295 cx,
8296 );
8297
8298 let crease_trailers =
8299 window.with_element_namespace("crease_trailers", |window| {
8300 self.prepaint_crease_trailers(
8301 crease_trailers,
8302 &line_layouts,
8303 line_height,
8304 content_origin,
8305 scroll_pixel_position,
8306 em_width,
8307 window,
8308 cx,
8309 )
8310 });
8311
8312 let (inline_completion_popover, inline_completion_popover_origin) = self
8313 .editor
8314 .update(cx, |editor, cx| {
8315 editor.render_edit_prediction_popover(
8316 &text_hitbox.bounds,
8317 content_origin,
8318 right_margin,
8319 &snapshot,
8320 start_row..end_row,
8321 scroll_position.y,
8322 scroll_position.y + height_in_lines,
8323 &line_layouts,
8324 line_height,
8325 scroll_pixel_position,
8326 newest_selection_head,
8327 editor_width,
8328 &style,
8329 window,
8330 cx,
8331 )
8332 })
8333 .unzip();
8334
8335 let mut inline_diagnostics = self.layout_inline_diagnostics(
8336 &line_layouts,
8337 &crease_trailers,
8338 &row_block_types,
8339 content_origin,
8340 scroll_pixel_position,
8341 inline_completion_popover_origin,
8342 start_row,
8343 end_row,
8344 line_height,
8345 em_width,
8346 &style,
8347 window,
8348 cx,
8349 );
8350
8351 let mut inline_blame = None;
8352 let mut inline_code_actions = None;
8353 if let Some(newest_selection_head) = newest_selection_head {
8354 let display_row = newest_selection_head.row();
8355 if (start_row..end_row).contains(&display_row)
8356 && !row_block_types.contains_key(&display_row)
8357 {
8358 inline_code_actions = self.layout_inline_code_actions(
8359 newest_selection_head,
8360 content_origin,
8361 scroll_pixel_position,
8362 line_height,
8363 &snapshot,
8364 window,
8365 cx,
8366 );
8367
8368 let line_ix = display_row.minus(start_row) as usize;
8369 let row_info = &row_infos[line_ix];
8370 let line_layout = &line_layouts[line_ix];
8371 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
8372
8373 inline_blame = self.layout_inline_blame(
8374 display_row,
8375 row_info,
8376 line_layout,
8377 crease_trailer_layout,
8378 em_width,
8379 content_origin,
8380 scroll_pixel_position,
8381 line_height,
8382 &text_hitbox,
8383 window,
8384 cx,
8385 );
8386 if inline_blame.is_some() {
8387 // Blame overrides inline diagnostics
8388 inline_diagnostics.remove(&display_row);
8389 }
8390 }
8391 }
8392
8393 let blamed_display_rows = self.layout_blame_entries(
8394 &row_infos,
8395 em_width,
8396 scroll_position,
8397 line_height,
8398 &gutter_hitbox,
8399 gutter_dimensions.git_blame_entries_width,
8400 window,
8401 cx,
8402 );
8403
8404 self.editor.update(cx, |editor, cx| {
8405 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
8406
8407 let autoscrolled = if autoscroll_horizontally {
8408 editor.autoscroll_horizontally(
8409 start_row,
8410 editor_content_width,
8411 scroll_width,
8412 em_width,
8413 &line_layouts,
8414 cx,
8415 )
8416 } else {
8417 false
8418 };
8419
8420 if clamped || autoscrolled {
8421 snapshot = editor.snapshot(window, cx);
8422 scroll_position = snapshot.scroll_position();
8423 }
8424 });
8425
8426 let line_elements = self.prepaint_lines(
8427 start_row,
8428 &mut line_layouts,
8429 line_height,
8430 scroll_pixel_position,
8431 content_origin,
8432 window,
8433 cx,
8434 );
8435
8436 window.with_element_namespace("blocks", |window| {
8437 self.layout_blocks(
8438 &mut blocks,
8439 &hitbox,
8440 line_height,
8441 scroll_pixel_position,
8442 window,
8443 cx,
8444 );
8445 });
8446
8447 let cursors = self.collect_cursors(&snapshot, cx);
8448 let visible_row_range = start_row..end_row;
8449 let non_visible_cursors = cursors
8450 .iter()
8451 .any(|c| !visible_row_range.contains(&c.0.row()));
8452
8453 let visible_cursors = self.layout_visible_cursors(
8454 &snapshot,
8455 &selections,
8456 &row_block_types,
8457 start_row..end_row,
8458 &line_layouts,
8459 &text_hitbox,
8460 content_origin,
8461 scroll_position,
8462 scroll_pixel_position,
8463 line_height,
8464 em_width,
8465 em_advance,
8466 autoscroll_containing_element,
8467 window,
8468 cx,
8469 );
8470
8471 let scrollbars_layout = self.layout_scrollbars(
8472 &snapshot,
8473 &scrollbar_layout_information,
8474 content_offset,
8475 scroll_position,
8476 non_visible_cursors,
8477 right_margin,
8478 editor_width,
8479 window,
8480 cx,
8481 );
8482
8483 let gutter_settings = EditorSettings::get_global(cx).gutter;
8484
8485 let context_menu_layout =
8486 if let Some(newest_selection_head) = newest_selection_head {
8487 let newest_selection_point =
8488 newest_selection_head.to_point(&snapshot.display_snapshot);
8489 if (start_row..end_row).contains(&newest_selection_head.row()) {
8490 self.layout_cursor_popovers(
8491 line_height,
8492 &text_hitbox,
8493 content_origin,
8494 right_margin,
8495 start_row,
8496 scroll_pixel_position,
8497 &line_layouts,
8498 newest_selection_head,
8499 newest_selection_point,
8500 &style,
8501 window,
8502 cx,
8503 )
8504 } else {
8505 None
8506 }
8507 } else {
8508 None
8509 };
8510
8511 self.layout_gutter_menu(
8512 line_height,
8513 &text_hitbox,
8514 content_origin,
8515 right_margin,
8516 scroll_pixel_position,
8517 gutter_dimensions.width - gutter_dimensions.left_padding,
8518 window,
8519 cx,
8520 );
8521
8522 let test_indicators = if gutter_settings.runnables {
8523 self.layout_run_indicators(
8524 line_height,
8525 start_row..end_row,
8526 &row_infos,
8527 scroll_pixel_position,
8528 &gutter_dimensions,
8529 &gutter_hitbox,
8530 &display_hunks,
8531 &snapshot,
8532 &mut breakpoint_rows,
8533 window,
8534 cx,
8535 )
8536 } else {
8537 Vec::new()
8538 };
8539
8540 let show_breakpoints = snapshot
8541 .show_breakpoints
8542 .unwrap_or(gutter_settings.breakpoints);
8543 let breakpoints = if show_breakpoints {
8544 self.layout_breakpoints(
8545 line_height,
8546 start_row..end_row,
8547 scroll_pixel_position,
8548 &gutter_dimensions,
8549 &gutter_hitbox,
8550 &display_hunks,
8551 &snapshot,
8552 breakpoint_rows,
8553 &row_infos,
8554 window,
8555 cx,
8556 )
8557 } else {
8558 Vec::new()
8559 };
8560
8561 self.layout_signature_help(
8562 &hitbox,
8563 content_origin,
8564 scroll_pixel_position,
8565 newest_selection_head,
8566 start_row,
8567 &line_layouts,
8568 line_height,
8569 em_width,
8570 context_menu_layout,
8571 window,
8572 cx,
8573 );
8574
8575 if !cx.has_active_drag() {
8576 self.layout_hover_popovers(
8577 &snapshot,
8578 &hitbox,
8579 start_row..end_row,
8580 content_origin,
8581 scroll_pixel_position,
8582 &line_layouts,
8583 line_height,
8584 em_width,
8585 context_menu_layout,
8586 window,
8587 cx,
8588 );
8589 }
8590
8591 let mouse_context_menu = self.layout_mouse_context_menu(
8592 &snapshot,
8593 start_row..end_row,
8594 content_origin,
8595 window,
8596 cx,
8597 );
8598
8599 window.with_element_namespace("crease_toggles", |window| {
8600 self.prepaint_crease_toggles(
8601 &mut crease_toggles,
8602 line_height,
8603 &gutter_dimensions,
8604 gutter_settings,
8605 scroll_pixel_position,
8606 &gutter_hitbox,
8607 window,
8608 cx,
8609 )
8610 });
8611
8612 window.with_element_namespace("expand_toggles", |window| {
8613 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
8614 });
8615
8616 let minimap = window.with_element_namespace("minimap", |window| {
8617 self.layout_minimap(
8618 &snapshot,
8619 minimap_width,
8620 scroll_position,
8621 &scrollbar_layout_information,
8622 scrollbars_layout.as_ref(),
8623 window,
8624 cx,
8625 )
8626 });
8627
8628 let invisible_symbol_font_size = font_size / 2.;
8629 let tab_invisible = window.text_system().shape_line(
8630 "→".into(),
8631 invisible_symbol_font_size,
8632 &[TextRun {
8633 len: "→".len(),
8634 font: self.style.text.font(),
8635 color: cx.theme().colors().editor_invisible,
8636 background_color: None,
8637 underline: None,
8638 strikethrough: None,
8639 }],
8640 );
8641 let space_invisible = window.text_system().shape_line(
8642 "•".into(),
8643 invisible_symbol_font_size,
8644 &[TextRun {
8645 len: "•".len(),
8646 font: self.style.text.font(),
8647 color: cx.theme().colors().editor_invisible,
8648 background_color: None,
8649 underline: None,
8650 strikethrough: None,
8651 }],
8652 );
8653
8654 let mode = snapshot.mode.clone();
8655
8656 let position_map = Rc::new(PositionMap {
8657 size: bounds.size,
8658 visible_row_range,
8659 scroll_pixel_position,
8660 scroll_max,
8661 line_layouts,
8662 line_height,
8663 em_width,
8664 em_advance,
8665 snapshot,
8666 gutter_hitbox: gutter_hitbox.clone(),
8667 text_hitbox: text_hitbox.clone(),
8668 });
8669
8670 self.editor.update(cx, |editor, _| {
8671 editor.last_position_map = Some(position_map.clone())
8672 });
8673
8674 let diff_hunk_controls = if is_read_only {
8675 vec![]
8676 } else {
8677 self.layout_diff_hunk_controls(
8678 start_row..end_row,
8679 &row_infos,
8680 &text_hitbox,
8681 &position_map,
8682 newest_selection_head,
8683 line_height,
8684 right_margin,
8685 scroll_pixel_position,
8686 &display_hunks,
8687 &highlighted_rows,
8688 self.editor.clone(),
8689 window,
8690 cx,
8691 )
8692 };
8693
8694 EditorLayout {
8695 mode,
8696 position_map,
8697 visible_display_row_range: start_row..end_row,
8698 wrap_guides,
8699 indent_guides,
8700 hitbox,
8701 gutter_hitbox,
8702 display_hunks,
8703 content_origin,
8704 scrollbars_layout,
8705 minimap,
8706 active_rows,
8707 highlighted_rows,
8708 highlighted_ranges,
8709 highlighted_gutter_ranges,
8710 redacted_ranges,
8711 line_elements,
8712 line_numbers,
8713 blamed_display_rows,
8714 inline_diagnostics,
8715 inline_blame,
8716 inline_code_actions,
8717 blocks,
8718 cursors,
8719 visible_cursors,
8720 selections,
8721 inline_completion_popover,
8722 diff_hunk_controls,
8723 mouse_context_menu,
8724 test_indicators,
8725 breakpoints,
8726 crease_toggles,
8727 crease_trailers,
8728 tab_invisible,
8729 space_invisible,
8730 sticky_buffer_header,
8731 expand_toggles,
8732 }
8733 })
8734 })
8735 })
8736 }
8737
8738 fn paint(
8739 &mut self,
8740 _: Option<&GlobalElementId>,
8741 __inspector_id: Option<&gpui::InspectorElementId>,
8742 bounds: Bounds<gpui::Pixels>,
8743 _: &mut Self::RequestLayoutState,
8744 layout: &mut Self::PrepaintState,
8745 window: &mut Window,
8746 cx: &mut App,
8747 ) {
8748 let focus_handle = self.editor.focus_handle(cx);
8749 let key_context = self
8750 .editor
8751 .update(cx, |editor, cx| editor.key_context(window, cx));
8752
8753 window.set_key_context(key_context);
8754 window.handle_input(
8755 &focus_handle,
8756 ElementInputHandler::new(bounds, self.editor.clone()),
8757 cx,
8758 );
8759 self.register_actions(window, cx);
8760 self.register_key_listeners(window, cx, layout);
8761
8762 let text_style = TextStyleRefinement {
8763 font_size: Some(self.style.text.font_size),
8764 line_height: Some(self.style.text.line_height),
8765 ..Default::default()
8766 };
8767 let rem_size = self.rem_size(cx);
8768 window.with_rem_size(rem_size, |window| {
8769 window.with_text_style(Some(text_style), |window| {
8770 window.with_content_mask(Some(ContentMask { bounds }), |window| {
8771 self.paint_mouse_listeners(layout, window, cx);
8772 self.paint_background(layout, window, cx);
8773 self.paint_indent_guides(layout, window, cx);
8774
8775 if layout.gutter_hitbox.size.width > Pixels::ZERO {
8776 self.paint_blamed_display_rows(layout, window, cx);
8777 self.paint_line_numbers(layout, window, cx);
8778 }
8779
8780 self.paint_text(layout, window, cx);
8781
8782 if layout.gutter_hitbox.size.width > Pixels::ZERO {
8783 self.paint_gutter_highlights(layout, window, cx);
8784 self.paint_gutter_indicators(layout, window, cx);
8785 }
8786
8787 if !layout.blocks.is_empty() {
8788 window.with_element_namespace("blocks", |window| {
8789 self.paint_blocks(layout, window, cx);
8790 });
8791 }
8792
8793 window.with_element_namespace("blocks", |window| {
8794 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
8795 sticky_header.paint(window, cx)
8796 }
8797 });
8798
8799 self.paint_minimap(layout, window, cx);
8800 self.paint_scrollbars(layout, window, cx);
8801 self.paint_inline_completion_popover(layout, window, cx);
8802 self.paint_mouse_context_menu(layout, window, cx);
8803 });
8804 })
8805 })
8806 }
8807}
8808
8809pub(super) fn gutter_bounds(
8810 editor_bounds: Bounds<Pixels>,
8811 gutter_dimensions: GutterDimensions,
8812) -> Bounds<Pixels> {
8813 Bounds {
8814 origin: editor_bounds.origin,
8815 size: size(gutter_dimensions.width, editor_bounds.size.height),
8816 }
8817}
8818
8819#[derive(Clone, Copy)]
8820struct ContextMenuLayout {
8821 y_flipped: bool,
8822 bounds: Bounds<Pixels>,
8823}
8824
8825/// Holds information required for layouting the editor scrollbars.
8826struct ScrollbarLayoutInformation {
8827 /// The bounds of the editor area (excluding the content offset).
8828 editor_bounds: Bounds<Pixels>,
8829 /// The available range to scroll within the document.
8830 scroll_range: Size<Pixels>,
8831 /// The space available for one glyph in the editor.
8832 glyph_grid_cell: Size<Pixels>,
8833}
8834
8835impl ScrollbarLayoutInformation {
8836 pub fn new(
8837 editor_bounds: Bounds<Pixels>,
8838 glyph_grid_cell: Size<Pixels>,
8839 document_size: Size<Pixels>,
8840 longest_line_blame_width: Pixels,
8841 editor_width: Pixels,
8842 settings: &EditorSettings,
8843 ) -> Self {
8844 let vertical_overscroll = match settings.scroll_beyond_last_line {
8845 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
8846 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
8847 ScrollBeyondLastLine::VerticalScrollMargin => {
8848 (1.0 + settings.vertical_scroll_margin) * glyph_grid_cell.height
8849 }
8850 };
8851
8852 let right_margin = if document_size.width + longest_line_blame_width >= editor_width {
8853 glyph_grid_cell.width
8854 } else {
8855 px(0.0)
8856 };
8857
8858 let overscroll = size(right_margin + longest_line_blame_width, vertical_overscroll);
8859
8860 let scroll_range = document_size + overscroll;
8861
8862 ScrollbarLayoutInformation {
8863 editor_bounds,
8864 scroll_range,
8865 glyph_grid_cell,
8866 }
8867 }
8868}
8869
8870impl IntoElement for EditorElement {
8871 type Element = Self;
8872
8873 fn into_element(self) -> Self::Element {
8874 self
8875 }
8876}
8877
8878pub struct EditorLayout {
8879 position_map: Rc<PositionMap>,
8880 hitbox: Hitbox,
8881 gutter_hitbox: Hitbox,
8882 content_origin: gpui::Point<Pixels>,
8883 scrollbars_layout: Option<EditorScrollbars>,
8884 minimap: Option<MinimapLayout>,
8885 mode: EditorMode,
8886 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
8887 indent_guides: Option<Vec<IndentGuideLayout>>,
8888 visible_display_row_range: Range<DisplayRow>,
8889 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
8890 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
8891 line_elements: SmallVec<[AnyElement; 1]>,
8892 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
8893 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
8894 blamed_display_rows: Option<Vec<AnyElement>>,
8895 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
8896 inline_blame: Option<AnyElement>,
8897 inline_code_actions: Option<AnyElement>,
8898 blocks: Vec<BlockLayout>,
8899 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
8900 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
8901 redacted_ranges: Vec<Range<DisplayPoint>>,
8902 cursors: Vec<(DisplayPoint, Hsla)>,
8903 visible_cursors: Vec<CursorLayout>,
8904 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
8905 test_indicators: Vec<AnyElement>,
8906 breakpoints: Vec<AnyElement>,
8907 crease_toggles: Vec<Option<AnyElement>>,
8908 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
8909 diff_hunk_controls: Vec<AnyElement>,
8910 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
8911 inline_completion_popover: Option<AnyElement>,
8912 mouse_context_menu: Option<AnyElement>,
8913 tab_invisible: ShapedLine,
8914 space_invisible: ShapedLine,
8915 sticky_buffer_header: Option<AnyElement>,
8916}
8917
8918impl EditorLayout {
8919 fn line_end_overshoot(&self) -> Pixels {
8920 0.15 * self.position_map.line_height
8921 }
8922}
8923
8924struct LineNumberLayout {
8925 shaped_line: ShapedLine,
8926 hitbox: Option<Hitbox>,
8927}
8928
8929struct ColoredRange<T> {
8930 start: T,
8931 end: T,
8932 color: Hsla,
8933}
8934
8935impl Along for ScrollbarAxes {
8936 type Unit = bool;
8937
8938 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
8939 match axis {
8940 ScrollbarAxis::Horizontal => self.horizontal,
8941 ScrollbarAxis::Vertical => self.vertical,
8942 }
8943 }
8944
8945 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
8946 match axis {
8947 ScrollbarAxis::Horizontal => ScrollbarAxes {
8948 horizontal: f(self.horizontal),
8949 vertical: self.vertical,
8950 },
8951 ScrollbarAxis::Vertical => ScrollbarAxes {
8952 horizontal: self.horizontal,
8953 vertical: f(self.vertical),
8954 },
8955 }
8956 }
8957}
8958
8959#[derive(Clone)]
8960struct EditorScrollbars {
8961 pub vertical: Option<ScrollbarLayout>,
8962 pub horizontal: Option<ScrollbarLayout>,
8963 pub visible: bool,
8964}
8965
8966impl EditorScrollbars {
8967 pub fn from_scrollbar_axes(
8968 settings_visibility: ScrollbarAxes,
8969 layout_information: &ScrollbarLayoutInformation,
8970 content_offset: gpui::Point<Pixels>,
8971 scroll_position: gpui::Point<f32>,
8972 scrollbar_width: Pixels,
8973 right_margin: Pixels,
8974 editor_width: Pixels,
8975 show_scrollbars: bool,
8976 scrollbar_state: Option<&ActiveScrollbarState>,
8977 window: &mut Window,
8978 ) -> Self {
8979 let ScrollbarLayoutInformation {
8980 editor_bounds,
8981 scroll_range,
8982 glyph_grid_cell,
8983 } = layout_information;
8984
8985 let viewport_size = size(editor_width, editor_bounds.size.height);
8986
8987 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
8988 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
8989 Corner::BottomLeft,
8990 editor_bounds.bottom_left(),
8991 size(
8992 // The horizontal viewport size differs from the space available for the
8993 // horizontal scrollbar, so we have to manually stich it together here.
8994 editor_bounds.size.width - right_margin,
8995 scrollbar_width,
8996 ),
8997 ),
8998 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
8999 Corner::TopRight,
9000 editor_bounds.top_right(),
9001 size(scrollbar_width, viewport_size.height),
9002 ),
9003 };
9004
9005 let mut create_scrollbar_layout = |axis| {
9006 settings_visibility
9007 .along(axis)
9008 .then(|| {
9009 (
9010 viewport_size.along(axis) - content_offset.along(axis),
9011 scroll_range.along(axis),
9012 )
9013 })
9014 .filter(|(viewport_size, scroll_range)| {
9015 // The scrollbar should only be rendered if the content does
9016 // not entirely fit into the editor
9017 // However, this only applies to the horizontal scrollbar, as information about the
9018 // vertical scrollbar layout is always needed for scrollbar diagnostics.
9019 axis != ScrollbarAxis::Horizontal || viewport_size < scroll_range
9020 })
9021 .map(|(viewport_size, scroll_range)| {
9022 ScrollbarLayout::new(
9023 window.insert_hitbox(scrollbar_bounds_for(axis), HitboxBehavior::Normal),
9024 viewport_size,
9025 scroll_range,
9026 glyph_grid_cell.along(axis),
9027 content_offset.along(axis),
9028 scroll_position.along(axis),
9029 show_scrollbars,
9030 axis,
9031 )
9032 .with_thumb_state(
9033 scrollbar_state.and_then(|state| state.thumb_state_for_axis(axis)),
9034 )
9035 })
9036 };
9037
9038 Self {
9039 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
9040 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
9041 visible: show_scrollbars,
9042 }
9043 }
9044
9045 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
9046 [
9047 (&self.vertical, ScrollbarAxis::Vertical),
9048 (&self.horizontal, ScrollbarAxis::Horizontal),
9049 ]
9050 .into_iter()
9051 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
9052 }
9053
9054 /// Returns the currently hovered scrollbar axis, if any.
9055 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
9056 self.iter_scrollbars()
9057 .find(|s| s.0.hitbox.is_hovered(window))
9058 }
9059}
9060
9061#[derive(Clone)]
9062struct ScrollbarLayout {
9063 hitbox: Hitbox,
9064 visible_range: Range<f32>,
9065 text_unit_size: Pixels,
9066 thumb_bounds: Option<Bounds<Pixels>>,
9067 thumb_state: ScrollbarThumbState,
9068}
9069
9070impl ScrollbarLayout {
9071 const BORDER_WIDTH: Pixels = px(1.0);
9072 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
9073 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
9074 const MIN_THUMB_SIZE: Pixels = px(25.0);
9075
9076 fn new(
9077 scrollbar_track_hitbox: Hitbox,
9078 viewport_size: Pixels,
9079 scroll_range: Pixels,
9080 glyph_space: Pixels,
9081 content_offset: Pixels,
9082 scroll_position: f32,
9083 show_thumb: bool,
9084 axis: ScrollbarAxis,
9085 ) -> Self {
9086 let track_bounds = scrollbar_track_hitbox.bounds;
9087 // The length of the track available to the scrollbar thumb. We deliberately
9088 // exclude the content size here so that the thumb aligns with the content.
9089 let track_length = track_bounds.size.along(axis) - content_offset;
9090
9091 Self::new_with_hitbox_and_track_length(
9092 scrollbar_track_hitbox,
9093 track_length,
9094 viewport_size,
9095 scroll_range,
9096 glyph_space,
9097 content_offset,
9098 scroll_position,
9099 show_thumb,
9100 axis,
9101 )
9102 }
9103
9104 fn for_minimap(
9105 minimap_track_hitbox: Hitbox,
9106 visible_lines: f32,
9107 total_editor_lines: f32,
9108 minimap_line_height: Pixels,
9109 scroll_position: f32,
9110 minimap_scroll_top: f32,
9111 show_thumb: bool,
9112 ) -> Self {
9113 // The scrollbar thumb size is calculated as
9114 // (visible_content/total_content) × scrollbar_track_length.
9115 //
9116 // For the minimap's thumb layout, we leverage this by setting the
9117 // scrollbar track length to the entire document size (using minimap line
9118 // height). This creates a thumb that exactly represents the editor
9119 // viewport scaled to minimap proportions.
9120 //
9121 // We adjust the thumb position relative to `minimap_scroll_top` to
9122 // accommodate for the deliberately oversized track.
9123 //
9124 // This approach ensures that the minimap thumb accurately reflects the
9125 // editor's current scroll position whilst nicely synchronizing the minimap
9126 // thumb and scrollbar thumb.
9127 let scroll_range = total_editor_lines * minimap_line_height;
9128 let viewport_size = visible_lines * minimap_line_height;
9129
9130 let track_top_offset = -minimap_scroll_top * minimap_line_height;
9131
9132 Self::new_with_hitbox_and_track_length(
9133 minimap_track_hitbox,
9134 scroll_range,
9135 viewport_size,
9136 scroll_range,
9137 minimap_line_height,
9138 track_top_offset,
9139 scroll_position,
9140 show_thumb,
9141 ScrollbarAxis::Vertical,
9142 )
9143 }
9144
9145 fn new_with_hitbox_and_track_length(
9146 scrollbar_track_hitbox: Hitbox,
9147 track_length: Pixels,
9148 viewport_size: Pixels,
9149 scroll_range: Pixels,
9150 glyph_space: Pixels,
9151 content_offset: Pixels,
9152 scroll_position: f32,
9153 show_thumb: bool,
9154 axis: ScrollbarAxis,
9155 ) -> Self {
9156 let text_units_per_page = viewport_size / glyph_space;
9157 let visible_range = scroll_position..scroll_position + text_units_per_page;
9158 let total_text_units = scroll_range / glyph_space;
9159
9160 let thumb_percentage = text_units_per_page / total_text_units;
9161 let thumb_size = (track_length * thumb_percentage)
9162 .max(ScrollbarLayout::MIN_THUMB_SIZE)
9163 .min(track_length);
9164
9165 let text_unit_divisor = (total_text_units - text_units_per_page).max(0.);
9166
9167 let content_larger_than_viewport = text_unit_divisor > 0.;
9168
9169 let text_unit_size = if content_larger_than_viewport {
9170 (track_length - thumb_size) / text_unit_divisor
9171 } else {
9172 glyph_space
9173 };
9174
9175 let thumb_bounds = (show_thumb && content_larger_than_viewport).then(|| {
9176 Self::thumb_bounds(
9177 &scrollbar_track_hitbox,
9178 content_offset,
9179 visible_range.start,
9180 text_unit_size,
9181 thumb_size,
9182 axis,
9183 )
9184 });
9185
9186 ScrollbarLayout {
9187 hitbox: scrollbar_track_hitbox,
9188 visible_range,
9189 text_unit_size,
9190 thumb_bounds,
9191 thumb_state: Default::default(),
9192 }
9193 }
9194
9195 fn with_thumb_state(self, thumb_state: Option<ScrollbarThumbState>) -> Self {
9196 if let Some(thumb_state) = thumb_state {
9197 Self {
9198 thumb_state,
9199 ..self
9200 }
9201 } else {
9202 self
9203 }
9204 }
9205
9206 fn thumb_bounds(
9207 scrollbar_track: &Hitbox,
9208 content_offset: Pixels,
9209 visible_range_start: f32,
9210 text_unit_size: Pixels,
9211 thumb_size: Pixels,
9212 axis: ScrollbarAxis,
9213 ) -> Bounds<Pixels> {
9214 let thumb_origin = scrollbar_track.origin.apply_along(axis, |origin| {
9215 origin + content_offset + visible_range_start * text_unit_size
9216 });
9217 Bounds::new(
9218 thumb_origin,
9219 scrollbar_track.size.apply_along(axis, |_| thumb_size),
9220 )
9221 }
9222
9223 fn thumb_hovered(&self, position: &gpui::Point<Pixels>) -> bool {
9224 self.thumb_bounds
9225 .is_some_and(|bounds| bounds.contains(position))
9226 }
9227
9228 fn marker_quads_for_ranges(
9229 &self,
9230 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
9231 column: Option<usize>,
9232 ) -> Vec<PaintQuad> {
9233 struct MinMax {
9234 min: Pixels,
9235 max: Pixels,
9236 }
9237 let (x_range, height_limit) = if let Some(column) = column {
9238 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
9239 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
9240 let end = start + column_width;
9241 (
9242 Range { start, end },
9243 MinMax {
9244 min: Self::MIN_MARKER_HEIGHT,
9245 max: px(f32::MAX),
9246 },
9247 )
9248 } else {
9249 (
9250 Range {
9251 start: Self::BORDER_WIDTH,
9252 end: self.hitbox.size.width,
9253 },
9254 MinMax {
9255 min: Self::LINE_MARKER_HEIGHT,
9256 max: Self::LINE_MARKER_HEIGHT,
9257 },
9258 )
9259 };
9260
9261 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
9262 let mut pixel_ranges = row_ranges
9263 .into_iter()
9264 .map(|range| {
9265 let start_y = row_to_y(range.start);
9266 let end_y = row_to_y(range.end)
9267 + self
9268 .text_unit_size
9269 .max(height_limit.min)
9270 .min(height_limit.max);
9271 ColoredRange {
9272 start: start_y,
9273 end: end_y,
9274 color: range.color,
9275 }
9276 })
9277 .peekable();
9278
9279 let mut quads = Vec::new();
9280 while let Some(mut pixel_range) = pixel_ranges.next() {
9281 while let Some(next_pixel_range) = pixel_ranges.peek() {
9282 if pixel_range.end >= next_pixel_range.start - px(1.0)
9283 && pixel_range.color == next_pixel_range.color
9284 {
9285 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
9286 pixel_ranges.next();
9287 } else {
9288 break;
9289 }
9290 }
9291
9292 let bounds = Bounds::from_corners(
9293 point(x_range.start, pixel_range.start),
9294 point(x_range.end, pixel_range.end),
9295 );
9296 quads.push(quad(
9297 bounds,
9298 Corners::default(),
9299 pixel_range.color,
9300 Edges::default(),
9301 Hsla::transparent_black(),
9302 BorderStyle::default(),
9303 ));
9304 }
9305
9306 quads
9307 }
9308}
9309
9310struct MinimapLayout {
9311 pub minimap: AnyElement,
9312 pub thumb_layout: ScrollbarLayout,
9313 pub minimap_scroll_top: f32,
9314 pub minimap_line_height: Pixels,
9315 pub thumb_border_style: MinimapThumbBorder,
9316 pub max_scroll_top: f32,
9317}
9318
9319impl MinimapLayout {
9320 const MINIMAP_WIDTH: Pixels = px(100.);
9321 /// Calculates the scroll top offset the minimap editor has to have based on the
9322 /// current scroll progress.
9323 fn calculate_minimap_top_offset(
9324 document_lines: f32,
9325 visible_editor_lines: f32,
9326 visible_minimap_lines: f32,
9327 scroll_position: f32,
9328 ) -> f32 {
9329 let non_visible_document_lines = (document_lines - visible_editor_lines).max(0.);
9330 if non_visible_document_lines == 0. {
9331 0.
9332 } else {
9333 let scroll_percentage = (scroll_position / non_visible_document_lines).clamp(0., 1.);
9334 scroll_percentage * (document_lines - visible_minimap_lines).max(0.)
9335 }
9336 }
9337}
9338
9339struct CreaseTrailerLayout {
9340 element: AnyElement,
9341 bounds: Bounds<Pixels>,
9342}
9343
9344pub(crate) struct PositionMap {
9345 pub size: Size<Pixels>,
9346 pub line_height: Pixels,
9347 pub scroll_pixel_position: gpui::Point<Pixels>,
9348 pub scroll_max: gpui::Point<f32>,
9349 pub em_width: Pixels,
9350 pub em_advance: Pixels,
9351 pub visible_row_range: Range<DisplayRow>,
9352 pub line_layouts: Vec<LineWithInvisibles>,
9353 pub snapshot: EditorSnapshot,
9354 pub text_hitbox: Hitbox,
9355 pub gutter_hitbox: Hitbox,
9356}
9357
9358#[derive(Debug, Copy, Clone)]
9359pub struct PointForPosition {
9360 pub previous_valid: DisplayPoint,
9361 pub next_valid: DisplayPoint,
9362 pub exact_unclipped: DisplayPoint,
9363 pub column_overshoot_after_line_end: u32,
9364}
9365
9366impl PointForPosition {
9367 pub fn as_valid(&self) -> Option<DisplayPoint> {
9368 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
9369 Some(self.previous_valid)
9370 } else {
9371 None
9372 }
9373 }
9374
9375 pub fn intersects_selection(&self, selection: &Selection<DisplayPoint>) -> bool {
9376 let Some(valid_point) = self.as_valid() else {
9377 return false;
9378 };
9379 let range = selection.range();
9380
9381 let candidate_row = valid_point.row();
9382 let candidate_col = valid_point.column();
9383
9384 let start_row = range.start.row();
9385 let start_col = range.start.column();
9386 let end_row = range.end.row();
9387 let end_col = range.end.column();
9388
9389 if candidate_row < start_row || candidate_row > end_row {
9390 false
9391 } else if start_row == end_row {
9392 candidate_col >= start_col && candidate_col < end_col
9393 } else {
9394 if candidate_row == start_row {
9395 candidate_col >= start_col
9396 } else if candidate_row == end_row {
9397 candidate_col < end_col
9398 } else {
9399 true
9400 }
9401 }
9402 }
9403}
9404
9405impl PositionMap {
9406 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
9407 let text_bounds = self.text_hitbox.bounds;
9408 let scroll_position = self.snapshot.scroll_position();
9409 let position = position - text_bounds.origin;
9410 let y = position.y.max(px(0.)).min(self.size.height);
9411 let x = position.x + (scroll_position.x * self.em_width);
9412 let row = ((y / self.line_height) + scroll_position.y) as u32;
9413
9414 let (column, x_overshoot_after_line_end) = if let Some(line) = self
9415 .line_layouts
9416 .get(row as usize - scroll_position.y as usize)
9417 {
9418 if let Some(ix) = line.index_for_x(x) {
9419 (ix as u32, px(0.))
9420 } else {
9421 (line.len as u32, px(0.).max(x - line.width))
9422 }
9423 } else {
9424 (0, x)
9425 };
9426
9427 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
9428 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
9429 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
9430
9431 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
9432 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
9433 PointForPosition {
9434 previous_valid,
9435 next_valid,
9436 exact_unclipped,
9437 column_overshoot_after_line_end,
9438 }
9439 }
9440}
9441
9442struct BlockLayout {
9443 id: BlockId,
9444 x_offset: Pixels,
9445 row: Option<DisplayRow>,
9446 element: AnyElement,
9447 available_space: Size<AvailableSpace>,
9448 style: BlockStyle,
9449 overlaps_gutter: bool,
9450 is_buffer_header: bool,
9451}
9452
9453pub fn layout_line(
9454 row: DisplayRow,
9455 snapshot: &EditorSnapshot,
9456 style: &EditorStyle,
9457 text_width: Pixels,
9458 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
9459 window: &mut Window,
9460 cx: &mut App,
9461) -> LineWithInvisibles {
9462 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
9463 LineWithInvisibles::from_chunks(
9464 chunks,
9465 &style,
9466 MAX_LINE_LEN,
9467 1,
9468 &snapshot.mode,
9469 text_width,
9470 is_row_soft_wrapped,
9471 window,
9472 cx,
9473 )
9474 .pop()
9475 .unwrap()
9476}
9477
9478#[derive(Debug)]
9479pub struct IndentGuideLayout {
9480 origin: gpui::Point<Pixels>,
9481 length: Pixels,
9482 single_indent_width: Pixels,
9483 depth: u32,
9484 active: bool,
9485 settings: IndentGuideSettings,
9486}
9487
9488pub struct CursorLayout {
9489 origin: gpui::Point<Pixels>,
9490 block_width: Pixels,
9491 line_height: Pixels,
9492 color: Hsla,
9493 shape: CursorShape,
9494 block_text: Option<ShapedLine>,
9495 cursor_name: Option<AnyElement>,
9496}
9497
9498#[derive(Debug)]
9499pub struct CursorName {
9500 string: SharedString,
9501 color: Hsla,
9502 is_top_row: bool,
9503}
9504
9505impl CursorLayout {
9506 pub fn new(
9507 origin: gpui::Point<Pixels>,
9508 block_width: Pixels,
9509 line_height: Pixels,
9510 color: Hsla,
9511 shape: CursorShape,
9512 block_text: Option<ShapedLine>,
9513 ) -> CursorLayout {
9514 CursorLayout {
9515 origin,
9516 block_width,
9517 line_height,
9518 color,
9519 shape,
9520 block_text,
9521 cursor_name: None,
9522 }
9523 }
9524
9525 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
9526 Bounds {
9527 origin: self.origin + origin,
9528 size: size(self.block_width, self.line_height),
9529 }
9530 }
9531
9532 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
9533 match self.shape {
9534 CursorShape::Bar => Bounds {
9535 origin: self.origin + origin,
9536 size: size(px(2.0), self.line_height),
9537 },
9538 CursorShape::Block | CursorShape::Hollow => Bounds {
9539 origin: self.origin + origin,
9540 size: size(self.block_width, self.line_height),
9541 },
9542 CursorShape::Underline => Bounds {
9543 origin: self.origin
9544 + origin
9545 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
9546 size: size(self.block_width, px(2.0)),
9547 },
9548 }
9549 }
9550
9551 pub fn layout(
9552 &mut self,
9553 origin: gpui::Point<Pixels>,
9554 cursor_name: Option<CursorName>,
9555 window: &mut Window,
9556 cx: &mut App,
9557 ) {
9558 if let Some(cursor_name) = cursor_name {
9559 let bounds = self.bounds(origin);
9560 let text_size = self.line_height / 1.5;
9561
9562 let name_origin = if cursor_name.is_top_row {
9563 point(bounds.right() - px(1.), bounds.top())
9564 } else {
9565 match self.shape {
9566 CursorShape::Bar => point(
9567 bounds.right() - px(2.),
9568 bounds.top() - text_size / 2. - px(1.),
9569 ),
9570 _ => point(
9571 bounds.right() - px(1.),
9572 bounds.top() - text_size / 2. - px(1.),
9573 ),
9574 }
9575 };
9576 let mut name_element = div()
9577 .bg(self.color)
9578 .text_size(text_size)
9579 .px_0p5()
9580 .line_height(text_size + px(2.))
9581 .text_color(cursor_name.color)
9582 .child(cursor_name.string.clone())
9583 .into_any_element();
9584
9585 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
9586
9587 self.cursor_name = Some(name_element);
9588 }
9589 }
9590
9591 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
9592 let bounds = self.bounds(origin);
9593
9594 //Draw background or border quad
9595 let cursor = if matches!(self.shape, CursorShape::Hollow) {
9596 outline(bounds, self.color, BorderStyle::Solid)
9597 } else {
9598 fill(bounds, self.color)
9599 };
9600
9601 if let Some(name) = &mut self.cursor_name {
9602 name.paint(window, cx);
9603 }
9604
9605 window.paint_quad(cursor);
9606
9607 if let Some(block_text) = &self.block_text {
9608 block_text
9609 .paint(self.origin + origin, self.line_height, window, cx)
9610 .log_err();
9611 }
9612 }
9613
9614 pub fn shape(&self) -> CursorShape {
9615 self.shape
9616 }
9617}
9618
9619#[derive(Debug)]
9620pub struct HighlightedRange {
9621 pub start_y: Pixels,
9622 pub line_height: Pixels,
9623 pub lines: Vec<HighlightedRangeLine>,
9624 pub color: Hsla,
9625 pub corner_radius: Pixels,
9626}
9627
9628#[derive(Debug)]
9629pub struct HighlightedRangeLine {
9630 pub start_x: Pixels,
9631 pub end_x: Pixels,
9632}
9633
9634impl HighlightedRange {
9635 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
9636 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
9637 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
9638 self.paint_lines(
9639 self.start_y + self.line_height,
9640 &self.lines[1..],
9641 bounds,
9642 window,
9643 );
9644 } else {
9645 self.paint_lines(self.start_y, &self.lines, bounds, window);
9646 }
9647 }
9648
9649 fn paint_lines(
9650 &self,
9651 start_y: Pixels,
9652 lines: &[HighlightedRangeLine],
9653 _bounds: Bounds<Pixels>,
9654 window: &mut Window,
9655 ) {
9656 if lines.is_empty() {
9657 return;
9658 }
9659
9660 let first_line = lines.first().unwrap();
9661 let last_line = lines.last().unwrap();
9662
9663 let first_top_left = point(first_line.start_x, start_y);
9664 let first_top_right = point(first_line.end_x, start_y);
9665
9666 let curve_height = point(Pixels::ZERO, self.corner_radius);
9667 let curve_width = |start_x: Pixels, end_x: Pixels| {
9668 let max = (end_x - start_x) / 2.;
9669 let width = if max < self.corner_radius {
9670 max
9671 } else {
9672 self.corner_radius
9673 };
9674
9675 point(width, Pixels::ZERO)
9676 };
9677
9678 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
9679 let mut builder = gpui::PathBuilder::fill();
9680 builder.move_to(first_top_right - top_curve_width);
9681 builder.curve_to(first_top_right + curve_height, first_top_right);
9682
9683 let mut iter = lines.iter().enumerate().peekable();
9684 while let Some((ix, line)) = iter.next() {
9685 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
9686
9687 if let Some((_, next_line)) = iter.peek() {
9688 let next_top_right = point(next_line.end_x, bottom_right.y);
9689
9690 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
9691 Ordering::Equal => {
9692 builder.line_to(bottom_right);
9693 }
9694 Ordering::Less => {
9695 let curve_width = curve_width(next_top_right.x, bottom_right.x);
9696 builder.line_to(bottom_right - curve_height);
9697 if self.corner_radius > Pixels::ZERO {
9698 builder.curve_to(bottom_right - curve_width, bottom_right);
9699 }
9700 builder.line_to(next_top_right + curve_width);
9701 if self.corner_radius > Pixels::ZERO {
9702 builder.curve_to(next_top_right + curve_height, next_top_right);
9703 }
9704 }
9705 Ordering::Greater => {
9706 let curve_width = curve_width(bottom_right.x, next_top_right.x);
9707 builder.line_to(bottom_right - curve_height);
9708 if self.corner_radius > Pixels::ZERO {
9709 builder.curve_to(bottom_right + curve_width, bottom_right);
9710 }
9711 builder.line_to(next_top_right - curve_width);
9712 if self.corner_radius > Pixels::ZERO {
9713 builder.curve_to(next_top_right + curve_height, next_top_right);
9714 }
9715 }
9716 }
9717 } else {
9718 let curve_width = curve_width(line.start_x, line.end_x);
9719 builder.line_to(bottom_right - curve_height);
9720 if self.corner_radius > Pixels::ZERO {
9721 builder.curve_to(bottom_right - curve_width, bottom_right);
9722 }
9723
9724 let bottom_left = point(line.start_x, bottom_right.y);
9725 builder.line_to(bottom_left + curve_width);
9726 if self.corner_radius > Pixels::ZERO {
9727 builder.curve_to(bottom_left - curve_height, bottom_left);
9728 }
9729 }
9730 }
9731
9732 if first_line.start_x > last_line.start_x {
9733 let curve_width = curve_width(last_line.start_x, first_line.start_x);
9734 let second_top_left = point(last_line.start_x, start_y + self.line_height);
9735 builder.line_to(second_top_left + curve_height);
9736 if self.corner_radius > Pixels::ZERO {
9737 builder.curve_to(second_top_left + curve_width, second_top_left);
9738 }
9739 let first_bottom_left = point(first_line.start_x, second_top_left.y);
9740 builder.line_to(first_bottom_left - curve_width);
9741 if self.corner_radius > Pixels::ZERO {
9742 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
9743 }
9744 }
9745
9746 builder.line_to(first_top_left + curve_height);
9747 if self.corner_radius > Pixels::ZERO {
9748 builder.curve_to(first_top_left + top_curve_width, first_top_left);
9749 }
9750 builder.line_to(first_top_right - top_curve_width);
9751
9752 if let Ok(path) = builder.build() {
9753 window.paint_path(path, self.color);
9754 }
9755 }
9756}
9757
9758enum CursorPopoverType {
9759 CodeContextMenu,
9760 EditPrediction,
9761}
9762
9763pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
9764 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
9765}
9766
9767fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
9768 (delta.pow(1.2) / 300.0).into()
9769}
9770
9771pub fn register_action<T: Action>(
9772 editor: &Entity<Editor>,
9773 window: &mut Window,
9774 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
9775) {
9776 let editor = editor.clone();
9777 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
9778 let action = action.downcast_ref().unwrap();
9779 if phase == DispatchPhase::Bubble {
9780 editor.update(cx, |editor, cx| {
9781 listener(editor, action, window, cx);
9782 })
9783 }
9784 })
9785}
9786
9787fn compute_auto_height_layout(
9788 editor: &mut Editor,
9789 max_lines: usize,
9790 max_line_number_width: Pixels,
9791 known_dimensions: Size<Option<Pixels>>,
9792 available_width: AvailableSpace,
9793 window: &mut Window,
9794 cx: &mut Context<Editor>,
9795) -> Option<Size<Pixels>> {
9796 let width = known_dimensions.width.or({
9797 if let AvailableSpace::Definite(available_width) = available_width {
9798 Some(available_width)
9799 } else {
9800 None
9801 }
9802 })?;
9803 if let Some(height) = known_dimensions.height {
9804 return Some(size(width, height));
9805 }
9806
9807 let style = editor.style.as_ref().unwrap();
9808 let font_id = window.text_system().resolve_font(&style.text.font());
9809 let font_size = style.text.font_size.to_pixels(window.rem_size());
9810 let line_height = style.text.line_height_in_pixels(window.rem_size());
9811 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
9812
9813 let mut snapshot = editor.snapshot(window, cx);
9814 let gutter_dimensions = snapshot
9815 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
9816 .or_else(|| {
9817 editor
9818 .offset_content
9819 .then(|| GutterDimensions::default_with_margin(font_id, font_size, cx))
9820 })
9821 .unwrap_or_default();
9822
9823 editor.gutter_dimensions = gutter_dimensions;
9824 let text_width = width - gutter_dimensions.width;
9825 let overscroll = size(em_width, px(0.));
9826
9827 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
9828 if !matches!(editor.soft_wrap_mode(cx), SoftWrap::None) {
9829 if editor.set_wrap_width(Some(editor_width), cx) {
9830 snapshot = editor.snapshot(window, cx);
9831 }
9832 }
9833
9834 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
9835 let height = scroll_height
9836 .max(line_height)
9837 .min(line_height * max_lines as f32);
9838
9839 Some(size(width, height))
9840}
9841
9842#[cfg(test)]
9843mod tests {
9844 use super::*;
9845 use crate::{
9846 Editor, MultiBuffer,
9847 display_map::{BlockPlacement, BlockProperties},
9848 editor_tests::{init_test, update_test_language_settings},
9849 };
9850 use gpui::{TestAppContext, VisualTestContext};
9851 use language::language_settings;
9852 use log::info;
9853 use std::num::NonZeroU32;
9854 use util::test::sample_text;
9855
9856 #[gpui::test]
9857 fn test_shape_line_numbers(cx: &mut TestAppContext) {
9858 init_test(cx, |_| {});
9859 let window = cx.add_window(|window, cx| {
9860 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
9861 Editor::new(EditorMode::full(), buffer, None, window, cx)
9862 });
9863
9864 let editor = window.root(cx).unwrap();
9865 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
9866 let line_height = window
9867 .update(cx, |_, window, _| {
9868 style.text.line_height_in_pixels(window.rem_size())
9869 })
9870 .unwrap();
9871 let element = EditorElement::new(&editor, style);
9872 let snapshot = window
9873 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
9874 .unwrap();
9875
9876 let layouts = cx
9877 .update_window(*window, |_, window, cx| {
9878 element.layout_line_numbers(
9879 None,
9880 GutterDimensions {
9881 left_padding: Pixels::ZERO,
9882 right_padding: Pixels::ZERO,
9883 width: px(30.0),
9884 margin: Pixels::ZERO,
9885 git_blame_entries_width: None,
9886 },
9887 line_height,
9888 gpui::Point::default(),
9889 DisplayRow(0)..DisplayRow(6),
9890 &(0..6)
9891 .map(|row| RowInfo {
9892 buffer_row: Some(row),
9893 ..Default::default()
9894 })
9895 .collect::<Vec<_>>(),
9896 &BTreeMap::default(),
9897 Some(DisplayPoint::new(DisplayRow(0), 0)),
9898 &snapshot,
9899 window,
9900 cx,
9901 )
9902 })
9903 .unwrap();
9904 assert_eq!(layouts.len(), 6);
9905
9906 let relative_rows = window
9907 .update(cx, |editor, window, cx| {
9908 let snapshot = editor.snapshot(window, cx);
9909 element.calculate_relative_line_numbers(
9910 &snapshot,
9911 &(DisplayRow(0)..DisplayRow(6)),
9912 Some(DisplayRow(3)),
9913 )
9914 })
9915 .unwrap();
9916 assert_eq!(relative_rows[&DisplayRow(0)], 3);
9917 assert_eq!(relative_rows[&DisplayRow(1)], 2);
9918 assert_eq!(relative_rows[&DisplayRow(2)], 1);
9919 // current line has no relative number
9920 assert_eq!(relative_rows[&DisplayRow(4)], 1);
9921 assert_eq!(relative_rows[&DisplayRow(5)], 2);
9922
9923 // works if cursor is before screen
9924 let relative_rows = window
9925 .update(cx, |editor, window, cx| {
9926 let snapshot = editor.snapshot(window, cx);
9927 element.calculate_relative_line_numbers(
9928 &snapshot,
9929 &(DisplayRow(3)..DisplayRow(6)),
9930 Some(DisplayRow(1)),
9931 )
9932 })
9933 .unwrap();
9934 assert_eq!(relative_rows.len(), 3);
9935 assert_eq!(relative_rows[&DisplayRow(3)], 2);
9936 assert_eq!(relative_rows[&DisplayRow(4)], 3);
9937 assert_eq!(relative_rows[&DisplayRow(5)], 4);
9938
9939 // works if cursor is after screen
9940 let relative_rows = window
9941 .update(cx, |editor, window, cx| {
9942 let snapshot = editor.snapshot(window, cx);
9943 element.calculate_relative_line_numbers(
9944 &snapshot,
9945 &(DisplayRow(0)..DisplayRow(3)),
9946 Some(DisplayRow(6)),
9947 )
9948 })
9949 .unwrap();
9950 assert_eq!(relative_rows.len(), 3);
9951 assert_eq!(relative_rows[&DisplayRow(0)], 5);
9952 assert_eq!(relative_rows[&DisplayRow(1)], 4);
9953 assert_eq!(relative_rows[&DisplayRow(2)], 3);
9954 }
9955
9956 #[gpui::test]
9957 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
9958 init_test(cx, |_| {});
9959
9960 let window = cx.add_window(|window, cx| {
9961 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
9962 Editor::new(EditorMode::full(), buffer, None, window, cx)
9963 });
9964 let cx = &mut VisualTestContext::from_window(*window, cx);
9965 let editor = window.root(cx).unwrap();
9966 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
9967
9968 window
9969 .update(cx, |editor, window, cx| {
9970 editor.cursor_shape = CursorShape::Block;
9971 editor.change_selections(None, window, cx, |s| {
9972 s.select_ranges([
9973 Point::new(0, 0)..Point::new(1, 0),
9974 Point::new(3, 2)..Point::new(3, 3),
9975 Point::new(5, 6)..Point::new(6, 0),
9976 ]);
9977 });
9978 })
9979 .unwrap();
9980
9981 let (_, state) = cx.draw(
9982 point(px(500.), px(500.)),
9983 size(px(500.), px(500.)),
9984 |_, _| EditorElement::new(&editor, style),
9985 );
9986
9987 assert_eq!(state.selections.len(), 1);
9988 let local_selections = &state.selections[0].1;
9989 assert_eq!(local_selections.len(), 3);
9990 // moves cursor back one line
9991 assert_eq!(
9992 local_selections[0].head,
9993 DisplayPoint::new(DisplayRow(0), 6)
9994 );
9995 assert_eq!(
9996 local_selections[0].range,
9997 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
9998 );
9999
10000 // moves cursor back one column
10001 assert_eq!(
10002 local_selections[1].range,
10003 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
10004 );
10005 assert_eq!(
10006 local_selections[1].head,
10007 DisplayPoint::new(DisplayRow(3), 2)
10008 );
10009
10010 // leaves cursor on the max point
10011 assert_eq!(
10012 local_selections[2].range,
10013 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
10014 );
10015 assert_eq!(
10016 local_selections[2].head,
10017 DisplayPoint::new(DisplayRow(6), 0)
10018 );
10019
10020 // active lines does not include 1 (even though the range of the selection does)
10021 assert_eq!(
10022 state.active_rows.keys().cloned().collect::<Vec<_>>(),
10023 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
10024 );
10025 }
10026
10027 #[gpui::test]
10028 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
10029 init_test(cx, |_| {});
10030
10031 let window = cx.add_window(|window, cx| {
10032 let buffer = MultiBuffer::build_simple("", cx);
10033 Editor::new(EditorMode::full(), buffer, None, window, cx)
10034 });
10035 let cx = &mut VisualTestContext::from_window(*window, cx);
10036 let editor = window.root(cx).unwrap();
10037 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10038 window
10039 .update(cx, |editor, window, cx| {
10040 editor.set_placeholder_text("hello", cx);
10041 editor.insert_blocks(
10042 [BlockProperties {
10043 style: BlockStyle::Fixed,
10044 placement: BlockPlacement::Above(Anchor::min()),
10045 height: Some(3),
10046 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
10047 priority: 0,
10048 render_in_minimap: true,
10049 }],
10050 None,
10051 cx,
10052 );
10053
10054 // Blur the editor so that it displays placeholder text.
10055 window.blur();
10056 })
10057 .unwrap();
10058
10059 let (_, state) = cx.draw(
10060 point(px(500.), px(500.)),
10061 size(px(500.), px(500.)),
10062 |_, _| EditorElement::new(&editor, style),
10063 );
10064 assert_eq!(state.position_map.line_layouts.len(), 4);
10065 assert_eq!(state.line_numbers.len(), 1);
10066 assert_eq!(
10067 state
10068 .line_numbers
10069 .get(&MultiBufferRow(0))
10070 .map(|line_number| line_number.shaped_line.text.as_ref()),
10071 Some("1")
10072 );
10073 }
10074
10075 #[gpui::test]
10076 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
10077 const TAB_SIZE: u32 = 4;
10078
10079 let input_text = "\t \t|\t| a b";
10080 let expected_invisibles = vec![
10081 Invisible::Tab {
10082 line_start_offset: 0,
10083 line_end_offset: TAB_SIZE as usize,
10084 },
10085 Invisible::Whitespace {
10086 line_offset: TAB_SIZE as usize,
10087 },
10088 Invisible::Tab {
10089 line_start_offset: TAB_SIZE as usize + 1,
10090 line_end_offset: TAB_SIZE as usize * 2,
10091 },
10092 Invisible::Tab {
10093 line_start_offset: TAB_SIZE as usize * 2 + 1,
10094 line_end_offset: TAB_SIZE as usize * 3,
10095 },
10096 Invisible::Whitespace {
10097 line_offset: TAB_SIZE as usize * 3 + 1,
10098 },
10099 Invisible::Whitespace {
10100 line_offset: TAB_SIZE as usize * 3 + 3,
10101 },
10102 ];
10103 assert_eq!(
10104 expected_invisibles.len(),
10105 input_text
10106 .chars()
10107 .filter(|initial_char| initial_char.is_whitespace())
10108 .count(),
10109 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
10110 );
10111
10112 for show_line_numbers in [true, false] {
10113 init_test(cx, |s| {
10114 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10115 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
10116 });
10117
10118 let actual_invisibles = collect_invisibles_from_new_editor(
10119 cx,
10120 EditorMode::full(),
10121 input_text,
10122 px(500.0),
10123 show_line_numbers,
10124 );
10125
10126 assert_eq!(expected_invisibles, actual_invisibles);
10127 }
10128 }
10129
10130 #[gpui::test]
10131 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
10132 init_test(cx, |s| {
10133 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10134 s.defaults.tab_size = NonZeroU32::new(4);
10135 });
10136
10137 for editor_mode_without_invisibles in [
10138 EditorMode::SingleLine { auto_width: false },
10139 EditorMode::AutoHeight { max_lines: 100 },
10140 ] {
10141 for show_line_numbers in [true, false] {
10142 let invisibles = collect_invisibles_from_new_editor(
10143 cx,
10144 editor_mode_without_invisibles.clone(),
10145 "\t\t\t| | a b",
10146 px(500.0),
10147 show_line_numbers,
10148 );
10149 assert!(
10150 invisibles.is_empty(),
10151 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
10152 );
10153 }
10154 }
10155 }
10156
10157 #[gpui::test]
10158 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
10159 let tab_size = 4;
10160 let input_text = "a\tbcd ".repeat(9);
10161 let repeated_invisibles = [
10162 Invisible::Tab {
10163 line_start_offset: 1,
10164 line_end_offset: tab_size as usize,
10165 },
10166 Invisible::Whitespace {
10167 line_offset: tab_size as usize + 3,
10168 },
10169 Invisible::Whitespace {
10170 line_offset: tab_size as usize + 4,
10171 },
10172 Invisible::Whitespace {
10173 line_offset: tab_size as usize + 5,
10174 },
10175 Invisible::Whitespace {
10176 line_offset: tab_size as usize + 6,
10177 },
10178 Invisible::Whitespace {
10179 line_offset: tab_size as usize + 7,
10180 },
10181 ];
10182 let expected_invisibles = std::iter::once(repeated_invisibles)
10183 .cycle()
10184 .take(9)
10185 .flatten()
10186 .collect::<Vec<_>>();
10187 assert_eq!(
10188 expected_invisibles.len(),
10189 input_text
10190 .chars()
10191 .filter(|initial_char| initial_char.is_whitespace())
10192 .count(),
10193 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
10194 );
10195 info!("Expected invisibles: {expected_invisibles:?}");
10196
10197 init_test(cx, |_| {});
10198
10199 // Put the same string with repeating whitespace pattern into editors of various size,
10200 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
10201 let resize_step = 10.0;
10202 let mut editor_width = 200.0;
10203 while editor_width <= 1000.0 {
10204 for show_line_numbers in [true, false] {
10205 update_test_language_settings(cx, |s| {
10206 s.defaults.tab_size = NonZeroU32::new(tab_size);
10207 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10208 s.defaults.preferred_line_length = Some(editor_width as u32);
10209 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
10210 });
10211
10212 let actual_invisibles = collect_invisibles_from_new_editor(
10213 cx,
10214 EditorMode::full(),
10215 &input_text,
10216 px(editor_width),
10217 show_line_numbers,
10218 );
10219
10220 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
10221 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
10222 let mut i = 0;
10223 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
10224 i = actual_index;
10225 match expected_invisibles.get(i) {
10226 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
10227 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
10228 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
10229 _ => {
10230 panic!(
10231 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
10232 )
10233 }
10234 },
10235 None => {
10236 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
10237 }
10238 }
10239 }
10240 let missing_expected_invisibles = &expected_invisibles[i + 1..];
10241 assert!(
10242 missing_expected_invisibles.is_empty(),
10243 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
10244 );
10245
10246 editor_width += resize_step;
10247 }
10248 }
10249 }
10250
10251 fn collect_invisibles_from_new_editor(
10252 cx: &mut TestAppContext,
10253 editor_mode: EditorMode,
10254 input_text: &str,
10255 editor_width: Pixels,
10256 show_line_numbers: bool,
10257 ) -> Vec<Invisible> {
10258 info!(
10259 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
10260 editor_width.0
10261 );
10262 let window = cx.add_window(|window, cx| {
10263 let buffer = MultiBuffer::build_simple(input_text, cx);
10264 Editor::new(editor_mode, buffer, None, window, cx)
10265 });
10266 let cx = &mut VisualTestContext::from_window(*window, cx);
10267 let editor = window.root(cx).unwrap();
10268
10269 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10270 window
10271 .update(cx, |editor, _, cx| {
10272 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
10273 editor.set_wrap_width(Some(editor_width), cx);
10274 editor.set_show_line_numbers(show_line_numbers, cx);
10275 })
10276 .unwrap();
10277 let (_, state) = cx.draw(
10278 point(px(500.), px(500.)),
10279 size(px(500.), px(500.)),
10280 |_, _| EditorElement::new(&editor, style),
10281 );
10282 state
10283 .position_map
10284 .line_layouts
10285 .iter()
10286 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
10287 .cloned()
10288 .collect()
10289 }
10290}