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, MIN_LINE_NUMBER_DIGITS, MINIMAP_FONT_SIZE, MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
10 OpenExcerpts, PageDown, PageUp, PhantomBreakpointIndicator, Point, RowExt, RowRangeExt,
11 SelectPhase, SelectedTextHighlight, Selection, SelectionDragState, SoftWrap,
12 StickyHeaderExcerpt, ToPoint, 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, HighlightedChunk,
16 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 feature_flags::{DebuggerFeatureFlag, FeatureFlagAppExt};
35use file_icons::FileIcons;
36use git::{
37 Oid,
38 blame::{BlameEntry, ParsedCommitMessage},
39 status::FileStatus,
40};
41use gpui::{
42 Action, Along, AnyElement, App, AppContext, AvailableSpace, Axis as ScrollbarAxis, BorderStyle,
43 Bounds, ClickEvent, ContentMask, Context, Corner, Corners, CursorStyle, DispatchPhase, Edges,
44 Element, ElementInputHandler, Entity, Focusable as _, FontId, GlobalElementId, Hitbox,
45 HitboxBehavior, Hsla, InteractiveElement, IntoElement, IsZero, Keystroke, Length,
46 ModifiersChangedEvent, MouseButton, MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad,
47 ParentElement, Pixels, ScrollDelta, ScrollHandle, ScrollWheelEvent, ShapedLine, SharedString,
48 Size, StatefulInteractiveElement, Style, Styled, TextRun, TextStyleRefinement, WeakEntity,
49 Window, anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline, point, px,
50 quad, relative, size, solid_background, transparent_black,
51};
52use itertools::Itertools;
53use language::language_settings::{
54 IndentGuideBackgroundColoring, IndentGuideColoring, IndentGuideSettings, ShowWhitespaceSetting,
55};
56use markdown::Markdown;
57use multi_buffer::{
58 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, ExpandInfo, MultiBufferPoint,
59 MultiBufferRow, RowInfo,
60};
61
62use project::{
63 ProjectPath,
64 debugger::breakpoint_store::{Breakpoint, BreakpointSessionState},
65 project_settings::{GitGutterSetting, GitHunkStyleSetting, ProjectSettings},
66};
67use settings::Settings;
68use smallvec::{SmallVec, smallvec};
69use std::{
70 any::TypeId,
71 borrow::Cow,
72 cmp::{self, Ordering},
73 fmt::{self, Write},
74 iter, mem,
75 ops::{Deref, Range},
76 rc::Rc,
77 sync::Arc,
78 time::Duration,
79};
80use sum_tree::Bias;
81use text::{BufferId, SelectionGoal};
82use theme::{ActiveTheme, Appearance, BufferLineHeight, PlayerColor};
83use ui::{ButtonLike, KeyBinding, POPOVER_Y_PADDING, Tooltip, h_flex, prelude::*};
84use unicode_segmentation::UnicodeSegmentation;
85use util::post_inc;
86use util::{RangeExt, ResultExt, debug_panic};
87use workspace::{CollaboratorId, Workspace, item::Item, notifications::NotifyTaskExt};
88
89const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 7.;
90
91/// Determines what kinds of highlights should be applied to a lines background.
92#[derive(Clone, Copy, Default)]
93struct LineHighlightSpec {
94 selection: bool,
95 breakpoint: bool,
96 _active_stack_frame: bool,
97}
98
99#[derive(Debug)]
100struct SelectionLayout {
101 head: DisplayPoint,
102 cursor_shape: CursorShape,
103 is_newest: bool,
104 is_local: bool,
105 range: Range<DisplayPoint>,
106 active_rows: Range<DisplayRow>,
107 user_name: Option<SharedString>,
108}
109
110impl SelectionLayout {
111 fn new<T: ToPoint + ToDisplayPoint + Clone>(
112 selection: Selection<T>,
113 line_mode: bool,
114 cursor_shape: CursorShape,
115 map: &DisplaySnapshot,
116 is_newest: bool,
117 is_local: bool,
118 user_name: Option<SharedString>,
119 ) -> Self {
120 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
121 let display_selection = point_selection.map(|p| p.to_display_point(map));
122 let mut range = display_selection.range();
123 let mut head = display_selection.head();
124 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
125 ..map.next_line_boundary(point_selection.end).1.row();
126
127 // vim visual line mode
128 if line_mode {
129 let point_range = map.expand_to_line(point_selection.range());
130 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
131 }
132
133 // any vim visual mode (including line mode)
134 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
135 && !range.is_empty()
136 && !selection.reversed
137 {
138 if head.column() > 0 {
139 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
140 } else if head.row().0 > 0 && head != map.max_point() {
141 head = map.clip_point(
142 DisplayPoint::new(
143 head.row().previous_row(),
144 map.line_len(head.row().previous_row()),
145 ),
146 Bias::Left,
147 );
148 // updating range.end is a no-op unless you're cursor is
149 // on the newline containing a multi-buffer divider
150 // in which case the clip_point may have moved the head up
151 // an additional row.
152 range.end = DisplayPoint::new(head.row().next_row(), 0);
153 active_rows.end = head.row();
154 }
155 }
156
157 Self {
158 head,
159 cursor_shape,
160 is_newest,
161 is_local,
162 range,
163 active_rows,
164 user_name,
165 }
166 }
167}
168
169pub struct EditorElement {
170 editor: Entity<Editor>,
171 style: EditorStyle,
172}
173
174type DisplayRowDelta = u32;
175
176impl EditorElement {
177 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
178
179 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
180 Self {
181 editor: editor.clone(),
182 style,
183 }
184 }
185
186 fn register_actions(&self, window: &mut Window, cx: &mut App) {
187 let editor = &self.editor;
188 editor.update(cx, |editor, cx| {
189 for action in editor.editor_actions.borrow().values() {
190 (action)(editor, window, cx)
191 }
192 });
193
194 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
195 crate::clangd_ext::apply_related_actions(editor, window, cx);
196
197 register_action(editor, window, Editor::open_context_menu);
198 register_action(editor, window, Editor::move_left);
199 register_action(editor, window, Editor::move_right);
200 register_action(editor, window, Editor::move_down);
201 register_action(editor, window, Editor::move_down_by_lines);
202 register_action(editor, window, Editor::select_down_by_lines);
203 register_action(editor, window, Editor::move_up);
204 register_action(editor, window, Editor::move_up_by_lines);
205 register_action(editor, window, Editor::select_up_by_lines);
206 register_action(editor, window, Editor::select_page_down);
207 register_action(editor, window, Editor::select_page_up);
208 register_action(editor, window, Editor::cancel);
209 register_action(editor, window, Editor::newline);
210 register_action(editor, window, Editor::newline_above);
211 register_action(editor, window, Editor::newline_below);
212 register_action(editor, window, Editor::backspace);
213 register_action(editor, window, Editor::delete);
214 register_action(editor, window, Editor::tab);
215 register_action(editor, window, Editor::backtab);
216 register_action(editor, window, Editor::indent);
217 register_action(editor, window, Editor::outdent);
218 register_action(editor, window, Editor::autoindent);
219 register_action(editor, window, Editor::delete_line);
220 register_action(editor, window, Editor::join_lines);
221 register_action(editor, window, Editor::sort_lines_case_sensitive);
222 register_action(editor, window, Editor::sort_lines_case_insensitive);
223 register_action(editor, window, Editor::reverse_lines);
224 register_action(editor, window, Editor::shuffle_lines);
225 register_action(editor, window, Editor::toggle_case);
226 register_action(editor, window, Editor::convert_to_upper_case);
227 register_action(editor, window, Editor::convert_to_lower_case);
228 register_action(editor, window, Editor::convert_to_title_case);
229 register_action(editor, window, Editor::convert_to_snake_case);
230 register_action(editor, window, Editor::convert_to_kebab_case);
231 register_action(editor, window, Editor::convert_to_upper_camel_case);
232 register_action(editor, window, Editor::convert_to_lower_camel_case);
233 register_action(editor, window, Editor::convert_to_opposite_case);
234 register_action(editor, window, Editor::convert_to_rot13);
235 register_action(editor, window, Editor::convert_to_rot47);
236 register_action(editor, window, Editor::delete_to_previous_word_start);
237 register_action(editor, window, Editor::delete_to_previous_subword_start);
238 register_action(editor, window, Editor::delete_to_next_word_end);
239 register_action(editor, window, Editor::delete_to_next_subword_end);
240 register_action(editor, window, Editor::delete_to_beginning_of_line);
241 register_action(editor, window, Editor::delete_to_end_of_line);
242 register_action(editor, window, Editor::cut_to_end_of_line);
243 register_action(editor, window, Editor::duplicate_line_up);
244 register_action(editor, window, Editor::duplicate_line_down);
245 register_action(editor, window, Editor::duplicate_selection);
246 register_action(editor, window, Editor::move_line_up);
247 register_action(editor, window, Editor::move_line_down);
248 register_action(editor, window, Editor::transpose);
249 register_action(editor, window, Editor::rewrap);
250 register_action(editor, window, Editor::cut);
251 register_action(editor, window, Editor::kill_ring_cut);
252 register_action(editor, window, Editor::kill_ring_yank);
253 register_action(editor, window, Editor::copy);
254 register_action(editor, window, Editor::copy_and_trim);
255 register_action(editor, window, Editor::paste);
256 register_action(editor, window, Editor::undo);
257 register_action(editor, window, Editor::redo);
258 register_action(editor, window, Editor::move_page_up);
259 register_action(editor, window, Editor::move_page_down);
260 register_action(editor, window, Editor::next_screen);
261 register_action(editor, window, Editor::scroll_cursor_top);
262 register_action(editor, window, Editor::scroll_cursor_center);
263 register_action(editor, window, Editor::scroll_cursor_bottom);
264 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
265 register_action(editor, window, |editor, _: &LineDown, window, cx| {
266 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
267 });
268 register_action(editor, window, |editor, _: &LineUp, window, cx| {
269 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
270 });
271 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
272 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
273 });
274 register_action(
275 editor,
276 window,
277 |editor, HandleInput(text): &HandleInput, window, cx| {
278 if text.is_empty() {
279 return;
280 }
281 editor.handle_input(text, window, cx);
282 },
283 );
284 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
285 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
286 });
287 register_action(editor, window, |editor, _: &PageDown, window, cx| {
288 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
289 });
290 register_action(editor, window, |editor, _: &PageUp, window, cx| {
291 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
292 });
293 register_action(editor, window, Editor::move_to_previous_word_start);
294 register_action(editor, window, Editor::move_to_previous_subword_start);
295 register_action(editor, window, Editor::move_to_next_word_end);
296 register_action(editor, window, Editor::move_to_next_subword_end);
297 register_action(editor, window, Editor::move_to_beginning_of_line);
298 register_action(editor, window, Editor::move_to_end_of_line);
299 register_action(editor, window, Editor::move_to_start_of_paragraph);
300 register_action(editor, window, Editor::move_to_end_of_paragraph);
301 register_action(editor, window, Editor::move_to_beginning);
302 register_action(editor, window, Editor::move_to_end);
303 register_action(editor, window, Editor::move_to_start_of_excerpt);
304 register_action(editor, window, Editor::move_to_start_of_next_excerpt);
305 register_action(editor, window, Editor::move_to_end_of_excerpt);
306 register_action(editor, window, Editor::move_to_end_of_previous_excerpt);
307 register_action(editor, window, Editor::select_up);
308 register_action(editor, window, Editor::select_down);
309 register_action(editor, window, Editor::select_left);
310 register_action(editor, window, Editor::select_right);
311 register_action(editor, window, Editor::select_to_previous_word_start);
312 register_action(editor, window, Editor::select_to_previous_subword_start);
313 register_action(editor, window, Editor::select_to_next_word_end);
314 register_action(editor, window, Editor::select_to_next_subword_end);
315 register_action(editor, window, Editor::select_to_beginning_of_line);
316 register_action(editor, window, Editor::select_to_end_of_line);
317 register_action(editor, window, Editor::select_to_start_of_paragraph);
318 register_action(editor, window, Editor::select_to_end_of_paragraph);
319 register_action(editor, window, Editor::select_to_start_of_excerpt);
320 register_action(editor, window, Editor::select_to_start_of_next_excerpt);
321 register_action(editor, window, Editor::select_to_end_of_excerpt);
322 register_action(editor, window, Editor::select_to_end_of_previous_excerpt);
323 register_action(editor, window, Editor::select_to_beginning);
324 register_action(editor, window, Editor::select_to_end);
325 register_action(editor, window, Editor::select_all);
326 register_action(editor, window, |editor, action, window, cx| {
327 editor.select_all_matches(action, window, cx).log_err();
328 });
329 register_action(editor, window, Editor::select_line);
330 register_action(editor, window, Editor::split_selection_into_lines);
331 register_action(editor, window, Editor::add_selection_above);
332 register_action(editor, window, Editor::add_selection_below);
333 register_action(editor, window, |editor, action, window, cx| {
334 editor.select_next(action, window, cx).log_err();
335 });
336 register_action(editor, window, |editor, action, window, cx| {
337 editor.select_previous(action, window, cx).log_err();
338 });
339 register_action(editor, window, |editor, action, window, cx| {
340 editor.find_next_match(action, window, cx).log_err();
341 });
342 register_action(editor, window, |editor, action, window, cx| {
343 editor.find_previous_match(action, window, cx).log_err();
344 });
345 register_action(editor, window, Editor::toggle_comments);
346 register_action(editor, window, Editor::select_larger_syntax_node);
347 register_action(editor, window, Editor::select_smaller_syntax_node);
348 register_action(editor, window, Editor::select_enclosing_symbol);
349 register_action(editor, window, Editor::move_to_enclosing_bracket);
350 register_action(editor, window, Editor::undo_selection);
351 register_action(editor, window, Editor::redo_selection);
352 if !editor.read(cx).is_singleton(cx) {
353 register_action(editor, window, Editor::expand_excerpts);
354 register_action(editor, window, Editor::expand_excerpts_up);
355 register_action(editor, window, Editor::expand_excerpts_down);
356 }
357 register_action(editor, window, Editor::go_to_diagnostic);
358 register_action(editor, window, Editor::go_to_prev_diagnostic);
359 register_action(editor, window, Editor::go_to_next_hunk);
360 register_action(editor, window, Editor::go_to_prev_hunk);
361 register_action(editor, window, |editor, action, window, cx| {
362 editor
363 .go_to_definition(action, window, cx)
364 .detach_and_log_err(cx);
365 });
366 register_action(editor, window, |editor, action, window, cx| {
367 editor
368 .go_to_definition_split(action, window, cx)
369 .detach_and_log_err(cx);
370 });
371 register_action(editor, window, |editor, action, window, cx| {
372 editor
373 .go_to_declaration(action, window, cx)
374 .detach_and_log_err(cx);
375 });
376 register_action(editor, window, |editor, action, window, cx| {
377 editor
378 .go_to_declaration_split(action, window, cx)
379 .detach_and_log_err(cx);
380 });
381 register_action(editor, window, |editor, action, window, cx| {
382 editor
383 .go_to_implementation(action, window, cx)
384 .detach_and_log_err(cx);
385 });
386 register_action(editor, window, |editor, action, window, cx| {
387 editor
388 .go_to_implementation_split(action, window, cx)
389 .detach_and_log_err(cx);
390 });
391 register_action(editor, window, |editor, action, window, cx| {
392 editor
393 .go_to_type_definition(action, window, cx)
394 .detach_and_log_err(cx);
395 });
396 register_action(editor, window, |editor, action, window, cx| {
397 editor
398 .go_to_type_definition_split(action, window, cx)
399 .detach_and_log_err(cx);
400 });
401 register_action(editor, window, Editor::open_url);
402 register_action(editor, window, Editor::open_selected_filename);
403 register_action(editor, window, Editor::fold);
404 register_action(editor, window, Editor::fold_at_level);
405 register_action(editor, window, Editor::fold_all);
406 register_action(editor, window, Editor::fold_function_bodies);
407 register_action(editor, window, Editor::fold_recursive);
408 register_action(editor, window, Editor::toggle_fold);
409 register_action(editor, window, Editor::toggle_fold_recursive);
410 register_action(editor, window, Editor::unfold_lines);
411 register_action(editor, window, Editor::unfold_recursive);
412 register_action(editor, window, Editor::unfold_all);
413 register_action(editor, window, Editor::fold_selected_ranges);
414 register_action(editor, window, Editor::set_mark);
415 register_action(editor, window, Editor::swap_selection_ends);
416 register_action(editor, window, Editor::show_completions);
417 register_action(editor, window, Editor::show_word_completions);
418 register_action(editor, window, Editor::toggle_code_actions);
419 register_action(editor, window, Editor::open_excerpts);
420 register_action(editor, window, Editor::open_excerpts_in_split);
421 register_action(editor, window, Editor::open_proposed_changes_editor);
422 register_action(editor, window, Editor::toggle_soft_wrap);
423 register_action(editor, window, Editor::toggle_tab_bar);
424 register_action(editor, window, Editor::toggle_line_numbers);
425 register_action(editor, window, Editor::toggle_relative_line_numbers);
426 register_action(editor, window, Editor::toggle_indent_guides);
427 register_action(editor, window, Editor::toggle_inlay_hints);
428 register_action(editor, window, Editor::toggle_edit_predictions);
429 if editor.read(cx).diagnostics_enabled() {
430 register_action(editor, window, Editor::toggle_diagnostics);
431 }
432 if editor.read(cx).inline_diagnostics_enabled() {
433 register_action(editor, window, Editor::toggle_inline_diagnostics);
434 }
435 if editor.read(cx).supports_minimap(cx) {
436 register_action(editor, window, Editor::toggle_minimap);
437 }
438 register_action(editor, window, hover_popover::hover);
439 register_action(editor, window, Editor::reveal_in_finder);
440 register_action(editor, window, Editor::copy_path);
441 register_action(editor, window, Editor::copy_relative_path);
442 register_action(editor, window, Editor::copy_file_name);
443 register_action(editor, window, Editor::copy_file_name_without_extension);
444 register_action(editor, window, Editor::copy_highlight_json);
445 register_action(editor, window, Editor::copy_permalink_to_line);
446 register_action(editor, window, Editor::open_permalink_to_line);
447 register_action(editor, window, Editor::copy_file_location);
448 register_action(editor, window, Editor::toggle_git_blame);
449 register_action(editor, window, Editor::toggle_git_blame_inline);
450 register_action(editor, window, Editor::open_git_blame_commit);
451 register_action(editor, window, Editor::toggle_selected_diff_hunks);
452 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
453 register_action(editor, window, Editor::stage_and_next);
454 register_action(editor, window, Editor::unstage_and_next);
455 register_action(editor, window, Editor::expand_all_diff_hunks);
456 register_action(editor, window, Editor::go_to_previous_change);
457 register_action(editor, window, Editor::go_to_next_change);
458
459 register_action(editor, window, |editor, action, window, cx| {
460 if let Some(task) = editor.format(action, window, cx) {
461 task.detach_and_notify_err(window, cx);
462 } else {
463 cx.propagate();
464 }
465 });
466 register_action(editor, window, |editor, action, window, cx| {
467 if let Some(task) = editor.format_selections(action, window, cx) {
468 task.detach_and_notify_err(window, cx);
469 } else {
470 cx.propagate();
471 }
472 });
473 register_action(editor, window, |editor, action, window, cx| {
474 if let Some(task) = editor.organize_imports(action, window, cx) {
475 task.detach_and_notify_err(window, cx);
476 } else {
477 cx.propagate();
478 }
479 });
480 register_action(editor, window, Editor::restart_language_server);
481 register_action(editor, window, Editor::stop_language_server);
482 register_action(editor, window, Editor::show_character_palette);
483 register_action(editor, window, |editor, action, window, cx| {
484 if let Some(task) = editor.confirm_completion(action, window, cx) {
485 task.detach_and_notify_err(window, cx);
486 } else {
487 cx.propagate();
488 }
489 });
490 register_action(editor, window, |editor, action, window, cx| {
491 if let Some(task) = editor.confirm_completion_replace(action, window, cx) {
492 task.detach_and_notify_err(window, cx);
493 } else {
494 cx.propagate();
495 }
496 });
497 register_action(editor, window, |editor, action, window, cx| {
498 if let Some(task) = editor.confirm_completion_insert(action, window, cx) {
499 task.detach_and_notify_err(window, cx);
500 } else {
501 cx.propagate();
502 }
503 });
504 register_action(editor, window, |editor, action, window, cx| {
505 if let Some(task) = editor.compose_completion(action, window, cx) {
506 task.detach_and_notify_err(window, cx);
507 } else {
508 cx.propagate();
509 }
510 });
511 register_action(editor, window, |editor, action, window, cx| {
512 if let Some(task) = editor.confirm_code_action(action, window, cx) {
513 task.detach_and_notify_err(window, cx);
514 } else {
515 cx.propagate();
516 }
517 });
518 register_action(editor, window, |editor, action, window, cx| {
519 if let Some(task) = editor.rename(action, window, cx) {
520 task.detach_and_notify_err(window, cx);
521 } else {
522 cx.propagate();
523 }
524 });
525 register_action(editor, window, |editor, action, window, cx| {
526 if let Some(task) = editor.confirm_rename(action, window, cx) {
527 task.detach_and_notify_err(window, cx);
528 } else {
529 cx.propagate();
530 }
531 });
532 register_action(editor, window, |editor, action, window, cx| {
533 if let Some(task) = editor.find_all_references(action, window, cx) {
534 task.detach_and_log_err(cx);
535 } else {
536 cx.propagate();
537 }
538 });
539 register_action(editor, window, Editor::show_signature_help);
540 register_action(editor, window, Editor::next_edit_prediction);
541 register_action(editor, window, Editor::previous_edit_prediction);
542 register_action(editor, window, Editor::show_inline_completion);
543 register_action(editor, window, Editor::context_menu_first);
544 register_action(editor, window, Editor::context_menu_prev);
545 register_action(editor, window, Editor::context_menu_next);
546 register_action(editor, window, Editor::context_menu_last);
547 register_action(editor, window, Editor::display_cursor_names);
548 register_action(editor, window, Editor::unique_lines_case_insensitive);
549 register_action(editor, window, Editor::unique_lines_case_sensitive);
550 register_action(editor, window, Editor::accept_partial_inline_completion);
551 register_action(editor, window, Editor::accept_edit_prediction);
552 register_action(editor, window, Editor::restore_file);
553 register_action(editor, window, Editor::git_restore);
554 register_action(editor, window, Editor::apply_all_diff_hunks);
555 register_action(editor, window, Editor::apply_selected_diff_hunks);
556 register_action(editor, window, Editor::open_active_item_in_terminal);
557 register_action(editor, window, Editor::reload_file);
558 register_action(editor, window, Editor::spawn_nearest_task);
559 register_action(editor, window, Editor::insert_uuid_v4);
560 register_action(editor, window, Editor::insert_uuid_v7);
561 register_action(editor, window, Editor::open_selections_in_multibuffer);
562 if cx.has_flag::<DebuggerFeatureFlag>() {
563 register_action(editor, window, Editor::toggle_breakpoint);
564 register_action(editor, window, Editor::edit_log_breakpoint);
565 register_action(editor, window, Editor::enable_breakpoint);
566 register_action(editor, window, Editor::disable_breakpoint);
567 }
568 }
569
570 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
571 let position_map = layout.position_map.clone();
572 window.on_key_event({
573 let editor = self.editor.clone();
574 move |event: &ModifiersChangedEvent, phase, window, cx| {
575 if phase != DispatchPhase::Bubble {
576 return;
577 }
578 editor.update(cx, |editor, cx| {
579 let inlay_hint_settings = inlay_hint_settings(
580 editor.selections.newest_anchor().head(),
581 &editor.buffer.read(cx).snapshot(cx),
582 cx,
583 );
584
585 if let Some(inlay_modifiers) = inlay_hint_settings
586 .toggle_on_modifiers_press
587 .as_ref()
588 .filter(|modifiers| modifiers.modified())
589 {
590 editor.refresh_inlay_hints(
591 InlayHintRefreshReason::ModifiersChanged(
592 inlay_modifiers == &event.modifiers,
593 ),
594 cx,
595 );
596 }
597
598 if editor.hover_state.focused(window, cx) {
599 return;
600 }
601
602 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
603 })
604 }
605 });
606 }
607
608 fn mouse_left_down(
609 editor: &mut Editor,
610 event: &MouseDownEvent,
611 hovered_hunk: Option<Range<Anchor>>,
612 position_map: &PositionMap,
613 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
614 window: &mut Window,
615 cx: &mut Context<Editor>,
616 ) {
617 if window.default_prevented() {
618 return;
619 }
620
621 let text_hitbox = &position_map.text_hitbox;
622 let gutter_hitbox = &position_map.gutter_hitbox;
623 let point_for_position = position_map.point_for_position(event.position);
624 let mut click_count = event.click_count;
625 let mut modifiers = event.modifiers;
626
627 if let Some(hovered_hunk) = hovered_hunk {
628 editor.toggle_single_diff_hunk(hovered_hunk, cx);
629 cx.notify();
630 return;
631 } else if gutter_hitbox.is_hovered(window) {
632 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
633 } else if !text_hitbox.is_hovered(window) {
634 return;
635 }
636
637 if editor.drag_and_drop_selection_enabled && click_count == 1 {
638 let newest_anchor = editor.selections.newest_anchor();
639 let snapshot = editor.snapshot(window, cx);
640 let selection = newest_anchor.map(|anchor| anchor.to_display_point(&snapshot));
641 if point_for_position.intersects_selection(&selection) {
642 editor.selection_drag_state = SelectionDragState::ReadyToDrag {
643 selection: newest_anchor.clone(),
644 click_position: event.position,
645 };
646 cx.stop_propagation();
647 return;
648 }
649 }
650
651 let is_singleton = editor.buffer().read(cx).is_singleton();
652
653 if click_count == 2 && !is_singleton {
654 match EditorSettings::get_global(cx).double_click_in_multibuffer {
655 DoubleClickInMultibuffer::Select => {
656 // do nothing special on double click, all selection logic is below
657 }
658 DoubleClickInMultibuffer::Open => {
659 if modifiers.alt {
660 // if double click is made with alt, pretend it's a regular double click without opening and alt,
661 // and run the selection logic.
662 modifiers.alt = false;
663 } else {
664 let scroll_position_row =
665 position_map.scroll_pixel_position.y / position_map.line_height;
666 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
667 + position_map.scroll_pixel_position.y)
668 / position_map.line_height)
669 as u32;
670 let multi_buffer_row = position_map
671 .snapshot
672 .display_point_to_point(
673 DisplayPoint::new(DisplayRow(display_row), 0),
674 Bias::Right,
675 )
676 .row;
677 let line_offset_from_top = display_row - scroll_position_row as u32;
678 // if double click is made without alt, open the corresponding excerp
679 editor.open_excerpts_common(
680 Some(JumpData::MultiBufferRow {
681 row: MultiBufferRow(multi_buffer_row),
682 line_offset_from_top,
683 }),
684 false,
685 window,
686 cx,
687 );
688 return;
689 }
690 }
691 }
692 }
693
694 let position = point_for_position.previous_valid;
695 let multi_cursor_modifier = Editor::multi_cursor_modifier(true, &modifiers, cx);
696 if Editor::columnar_selection_modifiers(multi_cursor_modifier, &modifiers) {
697 editor.select(
698 SelectPhase::BeginColumnar {
699 position,
700 reset: true,
701 goal_column: point_for_position.exact_unclipped.column(),
702 },
703 window,
704 cx,
705 );
706 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
707 {
708 editor.select(
709 SelectPhase::Extend {
710 position,
711 click_count,
712 },
713 window,
714 cx,
715 );
716 } else {
717 editor.select(
718 SelectPhase::Begin {
719 position,
720 add: multi_cursor_modifier,
721 click_count,
722 },
723 window,
724 cx,
725 );
726 }
727 cx.stop_propagation();
728
729 if !is_singleton {
730 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
731 + position_map.scroll_pixel_position.y)
732 / position_map.line_height) as u32;
733 let multi_buffer_row = position_map
734 .snapshot
735 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
736 .row;
737 if line_numbers
738 .get(&MultiBufferRow(multi_buffer_row))
739 .and_then(|line_number| line_number.hitbox.as_ref())
740 .is_some_and(|hitbox| hitbox.contains(&event.position))
741 {
742 let scroll_position_row =
743 position_map.scroll_pixel_position.y / position_map.line_height;
744 let line_offset_from_top = display_row - scroll_position_row as u32;
745
746 editor.open_excerpts_common(
747 Some(JumpData::MultiBufferRow {
748 row: MultiBufferRow(multi_buffer_row),
749 line_offset_from_top,
750 }),
751 modifiers.alt,
752 window,
753 cx,
754 );
755 cx.stop_propagation();
756 }
757 }
758 }
759
760 fn mouse_right_down(
761 editor: &mut Editor,
762 event: &MouseDownEvent,
763 position_map: &PositionMap,
764 window: &mut Window,
765 cx: &mut Context<Editor>,
766 ) {
767 if position_map.gutter_hitbox.is_hovered(window) {
768 let gutter_right_padding = editor.gutter_dimensions.right_padding;
769 let hitbox = &position_map.gutter_hitbox;
770
771 if event.position.x <= hitbox.bounds.right() - gutter_right_padding {
772 let point_for_position = position_map.point_for_position(event.position);
773 editor.set_breakpoint_context_menu(
774 point_for_position.previous_valid.row(),
775 None,
776 event.position,
777 window,
778 cx,
779 );
780 }
781 return;
782 }
783
784 if !position_map.text_hitbox.is_hovered(window) {
785 return;
786 }
787
788 let point_for_position = position_map.point_for_position(event.position);
789 mouse_context_menu::deploy_context_menu(
790 editor,
791 Some(event.position),
792 point_for_position.previous_valid,
793 window,
794 cx,
795 );
796 cx.stop_propagation();
797 }
798
799 fn mouse_middle_down(
800 editor: &mut Editor,
801 event: &MouseDownEvent,
802 position_map: &PositionMap,
803 window: &mut Window,
804 cx: &mut Context<Editor>,
805 ) {
806 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
807 return;
808 }
809
810 let point_for_position = position_map.point_for_position(event.position);
811 let position = point_for_position.previous_valid;
812
813 editor.select(
814 SelectPhase::BeginColumnar {
815 position,
816 reset: true,
817 goal_column: point_for_position.exact_unclipped.column(),
818 },
819 window,
820 cx,
821 );
822 }
823
824 fn mouse_up(
825 editor: &mut Editor,
826 event: &MouseUpEvent,
827 position_map: &PositionMap,
828 window: &mut Window,
829 cx: &mut Context<Editor>,
830 ) {
831 let text_hitbox = &position_map.text_hitbox;
832 let end_selection = editor.has_pending_selection();
833 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
834 let point_for_position = position_map.point_for_position(event.position);
835
836 match editor.selection_drag_state {
837 SelectionDragState::ReadyToDrag {
838 selection: _,
839 ref click_position,
840 } => {
841 if event.position == *click_position {
842 editor.select(
843 SelectPhase::Begin {
844 position: point_for_position.previous_valid,
845 add: false,
846 click_count: 1, // ready to drag state only occurs on click count 1
847 },
848 window,
849 cx,
850 );
851 editor.selection_drag_state = SelectionDragState::None;
852 cx.stop_propagation();
853 return;
854 }
855 }
856 SelectionDragState::Dragging { ref selection, .. } => {
857 let snapshot = editor.snapshot(window, cx);
858 let selection_display = selection.map(|anchor| anchor.to_display_point(&snapshot));
859 if !point_for_position.intersects_selection(&selection_display)
860 && text_hitbox.is_hovered(window)
861 {
862 let is_cut = !(cfg!(target_os = "macos") && event.modifiers.alt
863 || cfg!(not(target_os = "macos")) && event.modifiers.control);
864 editor.move_selection_on_drop(
865 &selection.clone(),
866 point_for_position.previous_valid,
867 is_cut,
868 window,
869 cx,
870 );
871 }
872 editor.selection_drag_state = SelectionDragState::None;
873 cx.stop_propagation();
874 cx.notify();
875 return;
876 }
877 _ => {}
878 }
879
880 if end_selection {
881 editor.select(SelectPhase::End, window, cx);
882 }
883
884 if end_selection && pending_nonempty_selections {
885 cx.stop_propagation();
886 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
887 && event.button == MouseButton::Middle
888 {
889 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
890 return;
891 }
892
893 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
894 if EditorSettings::get_global(cx).middle_click_paste {
895 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
896 let point_for_position = position_map.point_for_position(event.position);
897 let position = point_for_position.previous_valid;
898
899 editor.select(
900 SelectPhase::Begin {
901 position,
902 add: false,
903 click_count: 1,
904 },
905 window,
906 cx,
907 );
908 editor.insert(&text, window, cx);
909 }
910 cx.stop_propagation()
911 }
912 }
913 }
914
915 fn click(
916 editor: &mut Editor,
917 event: &ClickEvent,
918 position_map: &PositionMap,
919 window: &mut Window,
920 cx: &mut Context<Editor>,
921 ) {
922 let text_hitbox = &position_map.text_hitbox;
923 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
924
925 let hovered_link_modifier = Editor::multi_cursor_modifier(false, &event.modifiers(), cx);
926
927 if !pending_nonempty_selections && hovered_link_modifier && text_hitbox.is_hovered(window) {
928 let point = position_map.point_for_position(event.up.position);
929 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
930
931 cx.stop_propagation();
932 }
933 }
934
935 fn mouse_dragged(
936 editor: &mut Editor,
937 event: &MouseMoveEvent,
938 position_map: &PositionMap,
939 window: &mut Window,
940 cx: &mut Context<Editor>,
941 ) {
942 if !editor.has_pending_selection()
943 && matches!(editor.selection_drag_state, SelectionDragState::None)
944 {
945 return;
946 }
947
948 let text_hitbox = &position_map.text_hitbox;
949 let text_bounds = text_hitbox.bounds;
950 let point_for_position = position_map.point_for_position(event.position);
951
952 let mut scroll_delta = gpui::Point::<f32>::default();
953 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
954 let top = text_bounds.origin.y + vertical_margin;
955 let bottom = text_bounds.bottom_left().y - vertical_margin;
956 if event.position.y < top {
957 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
958 }
959 if event.position.y > bottom {
960 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
961 }
962
963 // We need horizontal width of text
964 let style = editor.style.clone().unwrap_or_default();
965 let font_id = window.text_system().resolve_font(&style.text.font());
966 let font_size = style.text.font_size.to_pixels(window.rem_size());
967 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
968
969 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
970
971 let scroll_space: Pixels = scroll_margin_x * em_width;
972
973 let left = text_bounds.origin.x + scroll_space;
974 let right = text_bounds.top_right().x - scroll_space;
975
976 if event.position.x < left {
977 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
978 }
979 if event.position.x > right {
980 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
981 }
982
983 if !editor.has_pending_selection() {
984 let drop_anchor = position_map
985 .snapshot
986 .display_point_to_anchor(point_for_position.previous_valid, Bias::Left);
987 match editor.selection_drag_state {
988 SelectionDragState::Dragging {
989 ref mut drop_cursor,
990 ref mut hide_drop_cursor,
991 ..
992 } => {
993 drop_cursor.start = drop_anchor;
994 drop_cursor.end = drop_anchor;
995 *hide_drop_cursor = !text_hitbox.is_hovered(window);
996 }
997 SelectionDragState::ReadyToDrag { ref selection, .. } => {
998 let drop_cursor = Selection {
999 id: post_inc(&mut editor.selections.next_selection_id),
1000 start: drop_anchor,
1001 end: drop_anchor,
1002 reversed: false,
1003 goal: SelectionGoal::None,
1004 };
1005 editor.selection_drag_state = SelectionDragState::Dragging {
1006 selection: selection.clone(),
1007 drop_cursor,
1008 hide_drop_cursor: false,
1009 };
1010 }
1011 _ => {}
1012 }
1013 editor.apply_scroll_delta(scroll_delta, window, cx);
1014 cx.notify();
1015 } else {
1016 editor.select(
1017 SelectPhase::Update {
1018 position: point_for_position.previous_valid,
1019 goal_column: point_for_position.exact_unclipped.column(),
1020 scroll_delta,
1021 },
1022 window,
1023 cx,
1024 );
1025 }
1026 }
1027
1028 fn mouse_moved(
1029 editor: &mut Editor,
1030 event: &MouseMoveEvent,
1031 position_map: &PositionMap,
1032 window: &mut Window,
1033 cx: &mut Context<Editor>,
1034 ) {
1035 let text_hitbox = &position_map.text_hitbox;
1036 let gutter_hitbox = &position_map.gutter_hitbox;
1037 let modifiers = event.modifiers;
1038 let gutter_hovered = gutter_hitbox.is_hovered(window);
1039 editor.set_gutter_hovered(gutter_hovered, cx);
1040 editor.mouse_cursor_hidden = false;
1041
1042 let breakpoint_indicator = if gutter_hovered {
1043 let new_point = position_map
1044 .point_for_position(event.position)
1045 .previous_valid;
1046 let buffer_anchor = position_map
1047 .snapshot
1048 .display_point_to_anchor(new_point, Bias::Left);
1049
1050 if let Some((buffer_snapshot, file)) = position_map
1051 .snapshot
1052 .buffer_snapshot
1053 .buffer_for_excerpt(buffer_anchor.excerpt_id)
1054 .and_then(|buffer| buffer.file().map(|file| (buffer, file)))
1055 {
1056 let as_point = text::ToPoint::to_point(&buffer_anchor.text_anchor, buffer_snapshot);
1057
1058 let is_visible = editor
1059 .gutter_breakpoint_indicator
1060 .0
1061 .map_or(false, |indicator| indicator.is_active);
1062
1063 let has_existing_breakpoint =
1064 editor.breakpoint_store.as_ref().map_or(false, |store| {
1065 let Some(project) = &editor.project else {
1066 return false;
1067 };
1068 let Some(abs_path) = project.read(cx).absolute_path(
1069 &ProjectPath {
1070 path: file.path().clone(),
1071 worktree_id: file.worktree_id(cx),
1072 },
1073 cx,
1074 ) else {
1075 return false;
1076 };
1077 store
1078 .read(cx)
1079 .breakpoint_at_row(&abs_path, as_point.row, cx)
1080 .is_some()
1081 });
1082
1083 if !is_visible {
1084 editor.gutter_breakpoint_indicator.1.get_or_insert_with(|| {
1085 cx.spawn(async move |this, cx| {
1086 cx.background_executor()
1087 .timer(Duration::from_millis(200))
1088 .await;
1089
1090 this.update(cx, |this, cx| {
1091 if let Some(indicator) = this.gutter_breakpoint_indicator.0.as_mut()
1092 {
1093 indicator.is_active = true;
1094 cx.notify();
1095 }
1096 })
1097 .ok();
1098 })
1099 });
1100 }
1101
1102 Some(PhantomBreakpointIndicator {
1103 display_row: new_point.row(),
1104 is_active: is_visible,
1105 collides_with_existing_breakpoint: has_existing_breakpoint,
1106 })
1107 } else {
1108 editor.gutter_breakpoint_indicator.1 = None;
1109 None
1110 }
1111 } else {
1112 editor.gutter_breakpoint_indicator.1 = None;
1113 None
1114 };
1115
1116 if &breakpoint_indicator != &editor.gutter_breakpoint_indicator.0 {
1117 editor.gutter_breakpoint_indicator.0 = breakpoint_indicator;
1118 cx.notify();
1119 }
1120
1121 // Don't trigger hover popover if mouse is hovering over context menu
1122 if text_hitbox.is_hovered(window) {
1123 let point_for_position = position_map.point_for_position(event.position);
1124
1125 editor.update_hovered_link(
1126 point_for_position,
1127 &position_map.snapshot,
1128 modifiers,
1129 window,
1130 cx,
1131 );
1132
1133 if let Some(point) = point_for_position.as_valid() {
1134 let anchor = position_map
1135 .snapshot
1136 .buffer_snapshot
1137 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
1138 hover_at(editor, Some(anchor), window, cx);
1139 Self::update_visible_cursor(editor, point, position_map, window, cx);
1140 } else {
1141 hover_at(editor, None, window, cx);
1142 }
1143 } else {
1144 editor.hide_hovered_link(cx);
1145 hover_at(editor, None, window, cx);
1146 }
1147 }
1148
1149 fn update_visible_cursor(
1150 editor: &mut Editor,
1151 point: DisplayPoint,
1152 position_map: &PositionMap,
1153 window: &mut Window,
1154 cx: &mut Context<Editor>,
1155 ) {
1156 let snapshot = &position_map.snapshot;
1157 let Some(hub) = editor.collaboration_hub() else {
1158 return;
1159 };
1160 let start = snapshot.display_snapshot.clip_point(
1161 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
1162 Bias::Left,
1163 );
1164 let end = snapshot.display_snapshot.clip_point(
1165 DisplayPoint::new(
1166 point.row(),
1167 (point.column() + 1).min(snapshot.line_len(point.row())),
1168 ),
1169 Bias::Right,
1170 );
1171
1172 let range = snapshot
1173 .buffer_snapshot
1174 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
1175 ..snapshot
1176 .buffer_snapshot
1177 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
1178
1179 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
1180 return;
1181 };
1182 let key = crate::HoveredCursor {
1183 replica_id: selection.replica_id,
1184 selection_id: selection.selection.id,
1185 };
1186 editor.hovered_cursors.insert(
1187 key.clone(),
1188 cx.spawn_in(window, async move |editor, cx| {
1189 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
1190 editor
1191 .update(cx, |editor, cx| {
1192 editor.hovered_cursors.remove(&key);
1193 cx.notify();
1194 })
1195 .ok();
1196 }),
1197 );
1198 cx.notify()
1199 }
1200
1201 fn layout_selections(
1202 &self,
1203 start_anchor: Anchor,
1204 end_anchor: Anchor,
1205 local_selections: &[Selection<Point>],
1206 snapshot: &EditorSnapshot,
1207 start_row: DisplayRow,
1208 end_row: DisplayRow,
1209 window: &mut Window,
1210 cx: &mut App,
1211 ) -> (
1212 Vec<(PlayerColor, Vec<SelectionLayout>)>,
1213 BTreeMap<DisplayRow, LineHighlightSpec>,
1214 Option<DisplayPoint>,
1215 ) {
1216 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1217 let mut active_rows = BTreeMap::new();
1218 let mut newest_selection_head = None;
1219
1220 let Some(editor_with_selections) = self.editor_with_selections(cx) else {
1221 return (selections, active_rows, newest_selection_head);
1222 };
1223
1224 editor_with_selections.update(cx, |editor, cx| {
1225 if editor.show_local_selections {
1226 let mut layouts = Vec::new();
1227 let newest = editor.selections.newest(cx);
1228 for selection in local_selections.iter().cloned() {
1229 let is_empty = selection.start == selection.end;
1230 let is_newest = selection == newest;
1231
1232 let layout = SelectionLayout::new(
1233 selection,
1234 editor.selections.line_mode,
1235 editor.cursor_shape,
1236 &snapshot.display_snapshot,
1237 is_newest,
1238 editor.leader_id.is_none(),
1239 None,
1240 );
1241 if is_newest {
1242 newest_selection_head = Some(layout.head);
1243 }
1244
1245 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1246 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1247 {
1248 let contains_non_empty_selection = active_rows
1249 .entry(DisplayRow(row))
1250 .or_insert_with(LineHighlightSpec::default);
1251 contains_non_empty_selection.selection |= !is_empty;
1252 }
1253 layouts.push(layout);
1254 }
1255
1256 let player = editor.current_user_player_color(cx);
1257 selections.push((player, layouts));
1258
1259 if let SelectionDragState::Dragging {
1260 ref selection,
1261 ref drop_cursor,
1262 ref hide_drop_cursor,
1263 } = editor.selection_drag_state
1264 {
1265 if !hide_drop_cursor
1266 && (drop_cursor
1267 .start
1268 .cmp(&selection.start, &snapshot.buffer_snapshot)
1269 .eq(&Ordering::Less)
1270 || drop_cursor
1271 .end
1272 .cmp(&selection.end, &snapshot.buffer_snapshot)
1273 .eq(&Ordering::Greater))
1274 {
1275 let drag_cursor_layout = SelectionLayout::new(
1276 drop_cursor.clone(),
1277 false,
1278 CursorShape::Bar,
1279 &snapshot.display_snapshot,
1280 false,
1281 false,
1282 None,
1283 );
1284 let absent_color = cx.theme().players().absent();
1285 selections.push((absent_color, vec![drag_cursor_layout]));
1286 }
1287 }
1288 }
1289
1290 if let Some(collaboration_hub) = &editor.collaboration_hub {
1291 // When following someone, render the local selections in their color.
1292 if let Some(leader_id) = editor.leader_id {
1293 match leader_id {
1294 CollaboratorId::PeerId(peer_id) => {
1295 if let Some(collaborator) =
1296 collaboration_hub.collaborators(cx).get(&peer_id)
1297 {
1298 if let Some(participant_index) = collaboration_hub
1299 .user_participant_indices(cx)
1300 .get(&collaborator.user_id)
1301 {
1302 if let Some((local_selection_style, _)) = selections.first_mut()
1303 {
1304 *local_selection_style = cx
1305 .theme()
1306 .players()
1307 .color_for_participant(participant_index.0);
1308 }
1309 }
1310 }
1311 }
1312 CollaboratorId::Agent => {
1313 if let Some((local_selection_style, _)) = selections.first_mut() {
1314 *local_selection_style = cx.theme().players().agent();
1315 }
1316 }
1317 }
1318 }
1319
1320 let mut remote_selections = HashMap::default();
1321 for selection in snapshot.remote_selections_in_range(
1322 &(start_anchor..end_anchor),
1323 collaboration_hub.as_ref(),
1324 cx,
1325 ) {
1326 // Don't re-render the leader's selections, since the local selections
1327 // match theirs.
1328 if Some(selection.collaborator_id) == editor.leader_id {
1329 continue;
1330 }
1331 let key = HoveredCursor {
1332 replica_id: selection.replica_id,
1333 selection_id: selection.selection.id,
1334 };
1335
1336 let is_shown =
1337 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1338
1339 remote_selections
1340 .entry(selection.replica_id)
1341 .or_insert((selection.color, Vec::new()))
1342 .1
1343 .push(SelectionLayout::new(
1344 selection.selection,
1345 selection.line_mode,
1346 selection.cursor_shape,
1347 &snapshot.display_snapshot,
1348 false,
1349 false,
1350 if is_shown { selection.user_name } else { None },
1351 ));
1352 }
1353
1354 selections.extend(remote_selections.into_values());
1355 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1356 let layouts = snapshot
1357 .buffer_snapshot
1358 .selections_in_range(&(start_anchor..end_anchor), true)
1359 .map(move |(_, line_mode, cursor_shape, selection)| {
1360 SelectionLayout::new(
1361 selection,
1362 line_mode,
1363 cursor_shape,
1364 &snapshot.display_snapshot,
1365 false,
1366 false,
1367 None,
1368 )
1369 })
1370 .collect::<Vec<_>>();
1371 let player = editor.current_user_player_color(cx);
1372 selections.push((player, layouts));
1373 }
1374 });
1375 (selections, active_rows, newest_selection_head)
1376 }
1377
1378 fn collect_cursors(
1379 &self,
1380 snapshot: &EditorSnapshot,
1381 cx: &mut App,
1382 ) -> Vec<(DisplayPoint, Hsla)> {
1383 let editor = self.editor.read(cx);
1384 let mut cursors = Vec::new();
1385 let mut skip_local = false;
1386 let mut add_cursor = |anchor: Anchor, color| {
1387 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1388 };
1389 // Remote cursors
1390 if let Some(collaboration_hub) = &editor.collaboration_hub {
1391 for remote_selection in snapshot.remote_selections_in_range(
1392 &(Anchor::min()..Anchor::max()),
1393 collaboration_hub.deref(),
1394 cx,
1395 ) {
1396 add_cursor(
1397 remote_selection.selection.head(),
1398 remote_selection.color.cursor,
1399 );
1400 if Some(remote_selection.collaborator_id) == editor.leader_id {
1401 skip_local = true;
1402 }
1403 }
1404 }
1405 // Local cursors
1406 if !skip_local {
1407 let color = cx.theme().players().local().cursor;
1408 editor.selections.disjoint.iter().for_each(|selection| {
1409 add_cursor(selection.head(), color);
1410 });
1411 if let Some(ref selection) = editor.selections.pending_anchor() {
1412 add_cursor(selection.head(), color);
1413 }
1414 }
1415 cursors
1416 }
1417
1418 fn layout_visible_cursors(
1419 &self,
1420 snapshot: &EditorSnapshot,
1421 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1422 row_block_types: &HashMap<DisplayRow, bool>,
1423 visible_display_row_range: Range<DisplayRow>,
1424 line_layouts: &[LineWithInvisibles],
1425 text_hitbox: &Hitbox,
1426 content_origin: gpui::Point<Pixels>,
1427 scroll_position: gpui::Point<f32>,
1428 scroll_pixel_position: gpui::Point<Pixels>,
1429 line_height: Pixels,
1430 em_width: Pixels,
1431 em_advance: Pixels,
1432 autoscroll_containing_element: bool,
1433 window: &mut Window,
1434 cx: &mut App,
1435 ) -> Vec<CursorLayout> {
1436 let mut autoscroll_bounds = None;
1437 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1438 let mut cursors = Vec::new();
1439
1440 let show_local_cursors = editor.show_local_cursors(window, cx);
1441
1442 for (player_color, selections) in selections {
1443 for selection in selections {
1444 let cursor_position = selection.head;
1445
1446 let in_range = visible_display_row_range.contains(&cursor_position.row());
1447 if (selection.is_local && !show_local_cursors)
1448 || !in_range
1449 || row_block_types.get(&cursor_position.row()) == Some(&true)
1450 {
1451 continue;
1452 }
1453
1454 let cursor_row_layout = &line_layouts
1455 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1456 let cursor_column = cursor_position.column() as usize;
1457
1458 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1459 let mut block_width =
1460 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1461 if block_width == Pixels::ZERO {
1462 block_width = em_advance;
1463 }
1464 let block_text = if let CursorShape::Block = selection.cursor_shape {
1465 snapshot
1466 .grapheme_at(cursor_position)
1467 .or_else(|| {
1468 if cursor_column == 0 {
1469 snapshot.placeholder_text().and_then(|s| {
1470 s.graphemes(true).next().map(|s| s.to_string().into())
1471 })
1472 } else {
1473 None
1474 }
1475 })
1476 .map(|text| {
1477 let len = text.len();
1478
1479 let font = cursor_row_layout
1480 .font_id_for_index(cursor_column)
1481 .and_then(|cursor_font_id| {
1482 window.text_system().get_font_for_id(cursor_font_id)
1483 })
1484 .unwrap_or(self.style.text.font());
1485
1486 // Invert the text color for the block cursor. Ensure that the text
1487 // color is opaque enough to be visible against the background color.
1488 //
1489 // 0.75 is an arbitrary threshold to determine if the background color is
1490 // opaque enough to use as a text color.
1491 //
1492 // TODO: In the future we should ensure themes have a `text_inverse` color.
1493 let color = if cx.theme().colors().editor_background.a < 0.75 {
1494 match cx.theme().appearance {
1495 Appearance::Dark => Hsla::black(),
1496 Appearance::Light => Hsla::white(),
1497 }
1498 } else {
1499 cx.theme().colors().editor_background
1500 };
1501
1502 window.text_system().shape_line(
1503 text,
1504 cursor_row_layout.font_size,
1505 &[TextRun {
1506 len,
1507 font,
1508 color,
1509 background_color: None,
1510 strikethrough: None,
1511 underline: None,
1512 }],
1513 )
1514 })
1515 } else {
1516 None
1517 };
1518
1519 let x = cursor_character_x - scroll_pixel_position.x;
1520 let y = (cursor_position.row().as_f32()
1521 - scroll_pixel_position.y / line_height)
1522 * line_height;
1523 if selection.is_newest {
1524 editor.pixel_position_of_newest_cursor = Some(point(
1525 text_hitbox.origin.x + x + block_width / 2.,
1526 text_hitbox.origin.y + y + line_height / 2.,
1527 ));
1528
1529 if autoscroll_containing_element {
1530 let top = text_hitbox.origin.y
1531 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1532 * line_height;
1533 let left = text_hitbox.origin.x
1534 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1535 .max(0.)
1536 * em_width;
1537
1538 let bottom = text_hitbox.origin.y
1539 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1540 * line_height;
1541 let right = text_hitbox.origin.x
1542 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1543 * em_width;
1544
1545 autoscroll_bounds =
1546 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1547 }
1548 }
1549
1550 let mut cursor = CursorLayout {
1551 color: player_color.cursor,
1552 block_width,
1553 origin: point(x, y),
1554 line_height,
1555 shape: selection.cursor_shape,
1556 block_text,
1557 cursor_name: None,
1558 };
1559 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1560 string: name,
1561 color: self.style.background,
1562 is_top_row: cursor_position.row().0 == 0,
1563 });
1564 cursor.layout(content_origin, cursor_name, window, cx);
1565 cursors.push(cursor);
1566 }
1567 }
1568
1569 cursors
1570 });
1571
1572 if let Some(bounds) = autoscroll_bounds {
1573 window.request_autoscroll(bounds);
1574 }
1575
1576 cursor_layouts
1577 }
1578
1579 fn layout_scrollbars(
1580 &self,
1581 snapshot: &EditorSnapshot,
1582 scrollbar_layout_information: &ScrollbarLayoutInformation,
1583 content_offset: gpui::Point<Pixels>,
1584 scroll_position: gpui::Point<f32>,
1585 non_visible_cursors: bool,
1586 right_margin: Pixels,
1587 editor_width: Pixels,
1588 window: &mut Window,
1589 cx: &mut App,
1590 ) -> Option<EditorScrollbars> {
1591 let show_scrollbars = self.editor.read(cx).show_scrollbars;
1592 if (!show_scrollbars.horizontal && !show_scrollbars.vertical)
1593 || self.style.scrollbar_width.is_zero()
1594 {
1595 return None;
1596 }
1597
1598 // If a drag took place after we started dragging the scrollbar,
1599 // cancel the scrollbar drag.
1600 if cx.has_active_drag() {
1601 self.editor.update(cx, |editor, cx| {
1602 editor.scroll_manager.reset_scrollbar_state(cx)
1603 });
1604 }
1605
1606 let editor_settings = EditorSettings::get_global(cx);
1607 let scrollbar_settings = editor_settings.scrollbar;
1608 let show_scrollbars = match scrollbar_settings.show {
1609 ShowScrollbar::Auto => {
1610 let editor = self.editor.read(cx);
1611 let is_singleton = editor.is_singleton(cx);
1612 // Git
1613 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1614 ||
1615 // Buffer Search Results
1616 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1617 ||
1618 // Selected Text Occurrences
1619 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1620 ||
1621 // Selected Symbol Occurrences
1622 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1623 ||
1624 // Diagnostics
1625 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1626 ||
1627 // Cursors out of sight
1628 non_visible_cursors
1629 ||
1630 // Scrollmanager
1631 editor.scroll_manager.scrollbars_visible()
1632 }
1633 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1634 ShowScrollbar::Always => true,
1635 ShowScrollbar::Never => return None,
1636 };
1637
1638 // The horizontal scrollbar is usually slightly offset to align nicely with
1639 // indent guides. However, this offset is not needed if indent guides are
1640 // disabled for the current editor.
1641 let content_offset = self
1642 .editor
1643 .read(cx)
1644 .show_indent_guides
1645 .is_none_or(|should_show| should_show)
1646 .then_some(content_offset)
1647 .unwrap_or_default();
1648
1649 Some(EditorScrollbars::from_scrollbar_axes(
1650 ScrollbarAxes {
1651 horizontal: scrollbar_settings.axes.horizontal
1652 && self.editor.read(cx).show_scrollbars.horizontal,
1653 vertical: scrollbar_settings.axes.vertical
1654 && self.editor.read(cx).show_scrollbars.vertical,
1655 },
1656 scrollbar_layout_information,
1657 content_offset,
1658 scroll_position,
1659 self.style.scrollbar_width,
1660 right_margin,
1661 editor_width,
1662 show_scrollbars,
1663 self.editor.read(cx).scroll_manager.active_scrollbar_state(),
1664 window,
1665 ))
1666 }
1667
1668 fn layout_minimap(
1669 &self,
1670 snapshot: &EditorSnapshot,
1671 minimap_width: Pixels,
1672 scroll_position: gpui::Point<f32>,
1673 scrollbar_layout_information: &ScrollbarLayoutInformation,
1674 scrollbar_layout: Option<&EditorScrollbars>,
1675 window: &mut Window,
1676 cx: &mut App,
1677 ) -> Option<MinimapLayout> {
1678 let minimap_editor = self.editor.read(cx).minimap().cloned()?;
1679
1680 let minimap_settings = EditorSettings::get_global(cx).minimap;
1681
1682 if !snapshot.mode.is_full()
1683 || minimap_width.is_zero()
1684 || matches!(
1685 minimap_settings.show,
1686 ShowMinimap::Auto if scrollbar_layout.is_none_or(|layout| !layout.visible)
1687 )
1688 {
1689 return None;
1690 }
1691
1692 const MINIMAP_AXIS: ScrollbarAxis = ScrollbarAxis::Vertical;
1693
1694 let ScrollbarLayoutInformation {
1695 editor_bounds,
1696 scroll_range,
1697 glyph_grid_cell,
1698 } = scrollbar_layout_information;
1699
1700 let line_height = glyph_grid_cell.height;
1701 let scroll_position = scroll_position.along(MINIMAP_AXIS);
1702
1703 let top_right_anchor = scrollbar_layout
1704 .and_then(|layout| layout.vertical.as_ref())
1705 .map(|vertical_scrollbar| vertical_scrollbar.hitbox.origin)
1706 .unwrap_or_else(|| editor_bounds.top_right());
1707
1708 let thumb_state = self
1709 .editor
1710 .read_with(cx, |editor, _| editor.scroll_manager.minimap_thumb_state());
1711
1712 let show_thumb = match minimap_settings.thumb {
1713 MinimapThumb::Always => true,
1714 MinimapThumb::Hover => thumb_state.is_some(),
1715 };
1716
1717 let minimap_bounds = Bounds::from_corner_and_size(
1718 Corner::TopRight,
1719 top_right_anchor,
1720 size(minimap_width, editor_bounds.size.height),
1721 );
1722 let minimap_line_height = self.get_minimap_line_height(
1723 minimap_editor
1724 .read(cx)
1725 .text_style_refinement
1726 .as_ref()
1727 .and_then(|refinement| refinement.font_size)
1728 .unwrap_or(MINIMAP_FONT_SIZE),
1729 window,
1730 cx,
1731 );
1732 let minimap_height = minimap_bounds.size.height;
1733
1734 let visible_editor_lines = editor_bounds.size.height / line_height;
1735 let total_editor_lines = scroll_range.height / line_height;
1736 let minimap_lines = minimap_height / minimap_line_height;
1737
1738 let minimap_scroll_top = MinimapLayout::calculate_minimap_top_offset(
1739 total_editor_lines,
1740 visible_editor_lines,
1741 minimap_lines,
1742 scroll_position,
1743 );
1744
1745 let layout = ScrollbarLayout::for_minimap(
1746 window.insert_hitbox(minimap_bounds, HitboxBehavior::Normal),
1747 visible_editor_lines,
1748 total_editor_lines,
1749 minimap_line_height,
1750 scroll_position,
1751 minimap_scroll_top,
1752 show_thumb,
1753 )
1754 .with_thumb_state(thumb_state);
1755
1756 minimap_editor.update(cx, |editor, cx| {
1757 editor.set_scroll_position(point(0., minimap_scroll_top), window, cx)
1758 });
1759
1760 // Required for the drop shadow to be visible
1761 const PADDING_OFFSET: Pixels = px(4.);
1762
1763 let mut minimap = div()
1764 .size_full()
1765 .shadow_sm()
1766 .px(PADDING_OFFSET)
1767 .child(minimap_editor)
1768 .into_any_element();
1769
1770 let extended_bounds = minimap_bounds.extend(Edges {
1771 right: PADDING_OFFSET,
1772 left: PADDING_OFFSET,
1773 ..Default::default()
1774 });
1775 minimap.layout_as_root(extended_bounds.size.into(), window, cx);
1776 window.with_absolute_element_offset(extended_bounds.origin, |window| {
1777 minimap.prepaint(window, cx)
1778 });
1779
1780 Some(MinimapLayout {
1781 minimap,
1782 thumb_layout: layout,
1783 thumb_border_style: minimap_settings.thumb_border,
1784 minimap_line_height,
1785 minimap_scroll_top,
1786 max_scroll_top: total_editor_lines,
1787 })
1788 }
1789
1790 fn get_minimap_line_height(
1791 &self,
1792 font_size: AbsoluteLength,
1793 window: &mut Window,
1794 cx: &mut App,
1795 ) -> Pixels {
1796 let rem_size = self.rem_size(cx).unwrap_or(window.rem_size());
1797 let mut text_style = self.style.text.clone();
1798 text_style.font_size = font_size;
1799 text_style.line_height_in_pixels(rem_size)
1800 }
1801
1802 fn prepaint_crease_toggles(
1803 &self,
1804 crease_toggles: &mut [Option<AnyElement>],
1805 line_height: Pixels,
1806 gutter_dimensions: &GutterDimensions,
1807 gutter_settings: crate::editor_settings::Gutter,
1808 scroll_pixel_position: gpui::Point<Pixels>,
1809 gutter_hitbox: &Hitbox,
1810 window: &mut Window,
1811 cx: &mut App,
1812 ) {
1813 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1814 if let Some(crease_toggle) = crease_toggle {
1815 debug_assert!(gutter_settings.folds);
1816 let available_space = size(
1817 AvailableSpace::MinContent,
1818 AvailableSpace::Definite(line_height * 0.55),
1819 );
1820 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1821
1822 let position = point(
1823 gutter_dimensions.width - gutter_dimensions.right_padding,
1824 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1825 );
1826 let centering_offset = point(
1827 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1828 (line_height - crease_toggle_size.height) / 2.,
1829 );
1830 let origin = gutter_hitbox.origin + position + centering_offset;
1831 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1832 }
1833 }
1834 }
1835
1836 fn prepaint_expand_toggles(
1837 &self,
1838 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
1839 window: &mut Window,
1840 cx: &mut App,
1841 ) {
1842 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
1843 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
1844 expand_toggle.layout_as_root(available_space, window, cx);
1845 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
1846 }
1847 }
1848
1849 fn prepaint_crease_trailers(
1850 &self,
1851 trailers: Vec<Option<AnyElement>>,
1852 lines: &[LineWithInvisibles],
1853 line_height: Pixels,
1854 content_origin: gpui::Point<Pixels>,
1855 scroll_pixel_position: gpui::Point<Pixels>,
1856 em_width: Pixels,
1857 window: &mut Window,
1858 cx: &mut App,
1859 ) -> Vec<Option<CreaseTrailerLayout>> {
1860 trailers
1861 .into_iter()
1862 .enumerate()
1863 .map(|(ix, element)| {
1864 let mut element = element?;
1865 let available_space = size(
1866 AvailableSpace::MinContent,
1867 AvailableSpace::Definite(line_height),
1868 );
1869 let size = element.layout_as_root(available_space, window, cx);
1870
1871 let line = &lines[ix];
1872 let padding = if line.width == Pixels::ZERO {
1873 Pixels::ZERO
1874 } else {
1875 4. * em_width
1876 };
1877 let position = point(
1878 scroll_pixel_position.x + line.width + padding,
1879 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1880 );
1881 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1882 let origin = content_origin + position + centering_offset;
1883 element.prepaint_as_root(origin, available_space, window, cx);
1884 Some(CreaseTrailerLayout {
1885 element,
1886 bounds: Bounds::new(origin, size),
1887 })
1888 })
1889 .collect()
1890 }
1891
1892 // Folds contained in a hunk are ignored apart from shrinking visual size
1893 // If a fold contains any hunks then that fold line is marked as modified
1894 fn layout_gutter_diff_hunks(
1895 &self,
1896 line_height: Pixels,
1897 gutter_hitbox: &Hitbox,
1898 display_rows: Range<DisplayRow>,
1899 snapshot: &EditorSnapshot,
1900 window: &mut Window,
1901 cx: &mut App,
1902 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1903 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1904 let mut display_hunks = snapshot
1905 .display_diff_hunks_for_rows(display_rows, folded_buffers)
1906 .map(|hunk| (hunk, None))
1907 .collect::<Vec<_>>();
1908 let git_gutter_setting = ProjectSettings::get_global(cx)
1909 .git
1910 .git_gutter
1911 .unwrap_or_default();
1912 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1913 for (hunk, hitbox) in &mut display_hunks {
1914 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1915 let hunk_bounds =
1916 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1917 *hitbox = Some(window.insert_hitbox(hunk_bounds, HitboxBehavior::BlockMouse));
1918 }
1919 }
1920 }
1921
1922 display_hunks
1923 }
1924
1925 fn layout_inline_diagnostics(
1926 &self,
1927 line_layouts: &[LineWithInvisibles],
1928 crease_trailers: &[Option<CreaseTrailerLayout>],
1929 row_block_types: &HashMap<DisplayRow, bool>,
1930 content_origin: gpui::Point<Pixels>,
1931 scroll_pixel_position: gpui::Point<Pixels>,
1932 inline_completion_popover_origin: Option<gpui::Point<Pixels>>,
1933 start_row: DisplayRow,
1934 end_row: DisplayRow,
1935 line_height: Pixels,
1936 em_width: Pixels,
1937 style: &EditorStyle,
1938 window: &mut Window,
1939 cx: &mut App,
1940 ) -> HashMap<DisplayRow, AnyElement> {
1941 if self.editor.read(cx).mode().is_minimap() {
1942 return HashMap::default();
1943 }
1944
1945 let max_severity = match ProjectSettings::get_global(cx)
1946 .diagnostics
1947 .inline
1948 .max_severity
1949 .unwrap_or_else(|| self.editor.read(cx).diagnostics_max_severity)
1950 .into_lsp()
1951 {
1952 Some(max_severity) => max_severity,
1953 None => return HashMap::default(),
1954 };
1955
1956 let active_diagnostics_group =
1957 if let ActiveDiagnostic::Group(group) = &self.editor.read(cx).active_diagnostics {
1958 Some(group.group_id)
1959 } else {
1960 None
1961 };
1962
1963 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
1964 let snapshot = editor.snapshot(window, cx);
1965 editor
1966 .inline_diagnostics
1967 .iter()
1968 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
1969 .filter(|(_, diagnostic)| match active_diagnostics_group {
1970 Some(active_diagnostics_group) => {
1971 // Active diagnostics are all shown in the editor already, no need to display them inline
1972 diagnostic.group_id != active_diagnostics_group
1973 }
1974 None => true,
1975 })
1976 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
1977 .skip_while(|(point, _)| point.row() < start_row)
1978 .take_while(|(point, _)| point.row() < end_row)
1979 .filter(|(point, _)| !row_block_types.contains_key(&point.row()))
1980 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
1981 acc.entry(point.row())
1982 .or_insert_with(Vec::new)
1983 .push(diagnostic);
1984 acc
1985 })
1986 });
1987
1988 if diagnostics_by_rows.is_empty() {
1989 return HashMap::default();
1990 }
1991
1992 let severity_to_color = |sev: &lsp::DiagnosticSeverity| match sev {
1993 &lsp::DiagnosticSeverity::ERROR => Color::Error,
1994 &lsp::DiagnosticSeverity::WARNING => Color::Warning,
1995 &lsp::DiagnosticSeverity::INFORMATION => Color::Info,
1996 &lsp::DiagnosticSeverity::HINT => Color::Hint,
1997 _ => Color::Error,
1998 };
1999
2000 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
2001 let min_x = ProjectSettings::get_global(cx)
2002 .diagnostics
2003 .inline
2004 .min_column as f32
2005 * em_width;
2006
2007 let mut elements = HashMap::default();
2008 for (row, mut diagnostics) in diagnostics_by_rows {
2009 diagnostics.sort_by_key(|diagnostic| {
2010 (
2011 diagnostic.severity,
2012 std::cmp::Reverse(diagnostic.is_primary),
2013 diagnostic.start.row,
2014 diagnostic.start.column,
2015 )
2016 });
2017
2018 let Some(diagnostic_to_render) = diagnostics
2019 .iter()
2020 .find(|diagnostic| diagnostic.is_primary)
2021 .or_else(|| diagnostics.first())
2022 else {
2023 continue;
2024 };
2025
2026 let pos_y = content_origin.y
2027 + line_height * (row.0 as f32 - scroll_pixel_position.y / line_height);
2028
2029 let window_ix = row.0.saturating_sub(start_row.0) as usize;
2030 let pos_x = {
2031 let crease_trailer_layout = &crease_trailers[window_ix];
2032 let line_layout = &line_layouts[window_ix];
2033
2034 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
2035 crease_trailer.bounds.right()
2036 } else {
2037 content_origin.x - scroll_pixel_position.x + line_layout.width
2038 };
2039
2040 let padded_line = line_end + padding;
2041 let min_start = content_origin.x - scroll_pixel_position.x + min_x;
2042
2043 cmp::max(padded_line, min_start)
2044 };
2045
2046 let behind_inline_completion_popover = inline_completion_popover_origin
2047 .as_ref()
2048 .map_or(false, |inline_completion_popover_origin| {
2049 (pos_y..pos_y + line_height).contains(&inline_completion_popover_origin.y)
2050 });
2051 let opacity = if behind_inline_completion_popover {
2052 0.5
2053 } else {
2054 1.0
2055 };
2056
2057 let mut element = h_flex()
2058 .id(("diagnostic", row.0))
2059 .h(line_height)
2060 .w_full()
2061 .px_1()
2062 .rounded_xs()
2063 .opacity(opacity)
2064 .bg(severity_to_color(&diagnostic_to_render.severity)
2065 .color(cx)
2066 .opacity(0.05))
2067 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
2068 .text_sm()
2069 .font_family(style.text.font().family)
2070 .child(diagnostic_to_render.message.clone())
2071 .into_any();
2072
2073 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
2074
2075 elements.insert(row, element);
2076 }
2077
2078 elements
2079 }
2080
2081 fn layout_inline_code_actions(
2082 &self,
2083 display_point: DisplayPoint,
2084 content_origin: gpui::Point<Pixels>,
2085 scroll_pixel_position: gpui::Point<Pixels>,
2086 line_height: Pixels,
2087 snapshot: &EditorSnapshot,
2088 window: &mut Window,
2089 cx: &mut App,
2090 ) -> Option<AnyElement> {
2091 if !snapshot
2092 .show_code_actions
2093 .unwrap_or(EditorSettings::get_global(cx).inline_code_actions)
2094 {
2095 return None;
2096 }
2097
2098 let icon_size = ui::IconSize::XSmall;
2099 let mut button = self.editor.update(cx, |editor, cx| {
2100 editor.available_code_actions.as_ref()?;
2101 let active = editor
2102 .context_menu
2103 .borrow()
2104 .as_ref()
2105 .and_then(|menu| {
2106 if let crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2107 deployed_from,
2108 ..
2109 }) = menu
2110 {
2111 deployed_from.as_ref()
2112 } else {
2113 None
2114 }
2115 })
2116 .map_or(false, |source| {
2117 matches!(source, CodeActionSource::Indicator(..))
2118 });
2119 Some(editor.render_inline_code_actions(icon_size, display_point.row(), active, cx))
2120 })?;
2121
2122 let buffer_point = display_point.to_point(&snapshot.display_snapshot);
2123
2124 // do not show code action for folded line
2125 if snapshot.is_line_folded(MultiBufferRow(buffer_point.row)) {
2126 return None;
2127 }
2128
2129 // do not show code action for blank line with cursor
2130 let line_indent = snapshot
2131 .display_snapshot
2132 .buffer_snapshot
2133 .line_indent_for_row(MultiBufferRow(buffer_point.row));
2134 if line_indent.is_line_blank() {
2135 return None;
2136 }
2137
2138 const INLINE_SLOT_CHAR_LIMIT: u32 = 4;
2139 const MAX_ALTERNATE_DISTANCE: u32 = 8;
2140
2141 let excerpt_id = snapshot
2142 .display_snapshot
2143 .buffer_snapshot
2144 .excerpt_containing(buffer_point..buffer_point)
2145 .map(|excerpt| excerpt.id());
2146
2147 let is_valid_row = |row_candidate: u32| -> bool {
2148 // move to other row if folded row
2149 if snapshot.is_line_folded(MultiBufferRow(row_candidate)) {
2150 return false;
2151 }
2152 if buffer_point.row == row_candidate {
2153 // move to other row if cursor is in slot
2154 if buffer_point.column < INLINE_SLOT_CHAR_LIMIT {
2155 return false;
2156 }
2157 } else {
2158 let candidate_point = MultiBufferPoint {
2159 row: row_candidate,
2160 column: 0,
2161 };
2162 let candidate_excerpt_id = snapshot
2163 .display_snapshot
2164 .buffer_snapshot
2165 .excerpt_containing(candidate_point..candidate_point)
2166 .map(|excerpt| excerpt.id());
2167 // move to other row if different excerpt
2168 if excerpt_id != candidate_excerpt_id {
2169 return false;
2170 }
2171 }
2172 let line_indent = snapshot
2173 .display_snapshot
2174 .buffer_snapshot
2175 .line_indent_for_row(MultiBufferRow(row_candidate));
2176 // use this row if it's blank
2177 if line_indent.is_line_blank() {
2178 true
2179 } else {
2180 // use this row if code starts after slot
2181 let indent_size = snapshot
2182 .display_snapshot
2183 .buffer_snapshot
2184 .indent_size_for_line(MultiBufferRow(row_candidate));
2185 indent_size.len >= INLINE_SLOT_CHAR_LIMIT
2186 }
2187 };
2188
2189 let new_buffer_row = if is_valid_row(buffer_point.row) {
2190 Some(buffer_point.row)
2191 } else {
2192 let max_row = snapshot.display_snapshot.buffer_snapshot.max_point().row;
2193 (1..=MAX_ALTERNATE_DISTANCE).find_map(|offset| {
2194 let row_above = buffer_point.row.saturating_sub(offset);
2195 let row_below = buffer_point.row + offset;
2196 if row_above != buffer_point.row && is_valid_row(row_above) {
2197 Some(row_above)
2198 } else if row_below <= max_row && is_valid_row(row_below) {
2199 Some(row_below)
2200 } else {
2201 None
2202 }
2203 })
2204 }?;
2205
2206 let new_display_row = snapshot
2207 .display_snapshot
2208 .point_to_display_point(
2209 Point {
2210 row: new_buffer_row,
2211 column: buffer_point.column,
2212 },
2213 text::Bias::Left,
2214 )
2215 .row();
2216
2217 let start_y = content_origin.y
2218 + ((new_display_row.as_f32() - (scroll_pixel_position.y / line_height)) * line_height)
2219 + (line_height / 2.0)
2220 - (icon_size.square(window, cx) / 2.);
2221 let start_x = content_origin.x - scroll_pixel_position.x + (window.rem_size() * 0.1);
2222
2223 let absolute_offset = gpui::point(start_x, start_y);
2224 button.layout_as_root(gpui::AvailableSpace::min_size(), window, cx);
2225 button.prepaint_as_root(
2226 absolute_offset,
2227 gpui::AvailableSpace::min_size(),
2228 window,
2229 cx,
2230 );
2231 Some(button)
2232 }
2233
2234 fn layout_inline_blame(
2235 &self,
2236 display_row: DisplayRow,
2237 row_info: &RowInfo,
2238 line_layout: &LineWithInvisibles,
2239 crease_trailer: Option<&CreaseTrailerLayout>,
2240 em_width: Pixels,
2241 content_origin: gpui::Point<Pixels>,
2242 scroll_pixel_position: gpui::Point<Pixels>,
2243 line_height: Pixels,
2244 text_hitbox: &Hitbox,
2245 window: &mut Window,
2246 cx: &mut App,
2247 ) -> Option<AnyElement> {
2248 if !self
2249 .editor
2250 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
2251 {
2252 return None;
2253 }
2254
2255 let editor = self.editor.read(cx);
2256 let blame = editor.blame.clone()?;
2257 let padding = {
2258 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
2259 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
2260
2261 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
2262
2263 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
2264 match &inline_completion.completion {
2265 InlineCompletion::Edit {
2266 display_mode: EditDisplayMode::TabAccept,
2267 ..
2268 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
2269 _ => {}
2270 }
2271 }
2272
2273 padding * em_width
2274 };
2275
2276 let blame_entry = blame
2277 .update(cx, |blame, cx| {
2278 blame.blame_for_rows(&[*row_info], cx).next()
2279 })
2280 .flatten()?;
2281
2282 let mut element = render_inline_blame_entry(blame_entry.clone(), &self.style, cx)?;
2283
2284 let start_y = content_origin.y
2285 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
2286
2287 let start_x = {
2288 let line_end = if let Some(crease_trailer) = crease_trailer {
2289 crease_trailer.bounds.right()
2290 } else {
2291 content_origin.x - scroll_pixel_position.x + line_layout.width
2292 };
2293
2294 let padded_line_end = line_end + padding;
2295
2296 let min_column_in_pixels = ProjectSettings::get_global(cx)
2297 .git
2298 .inline_blame
2299 .and_then(|settings| settings.min_column)
2300 .map(|col| self.column_pixels(col as usize, window, cx))
2301 .unwrap_or(px(0.));
2302 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
2303
2304 cmp::max(padded_line_end, min_start)
2305 };
2306
2307 let absolute_offset = point(start_x, start_y);
2308 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2309 let bounds = Bounds::new(absolute_offset, size);
2310
2311 self.layout_blame_entry_popover(
2312 bounds,
2313 blame_entry,
2314 blame,
2315 line_height,
2316 text_hitbox,
2317 window,
2318 cx,
2319 );
2320
2321 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
2322
2323 Some(element)
2324 }
2325
2326 fn layout_blame_entry_popover(
2327 &self,
2328 parent_bounds: Bounds<Pixels>,
2329 blame_entry: BlameEntry,
2330 blame: Entity<GitBlame>,
2331 line_height: Pixels,
2332 text_hitbox: &Hitbox,
2333 window: &mut Window,
2334 cx: &mut App,
2335 ) {
2336 let mouse_position = window.mouse_position();
2337 let mouse_over_inline_blame = parent_bounds.contains(&mouse_position);
2338 let mouse_over_popover = self.editor.read_with(cx, |editor, _| {
2339 editor
2340 .inline_blame_popover
2341 .as_ref()
2342 .and_then(|state| state.popover_bounds)
2343 .map_or(false, |bounds| bounds.contains(&mouse_position))
2344 });
2345
2346 self.editor.update(cx, |editor, cx| {
2347 if mouse_over_inline_blame || mouse_over_popover {
2348 editor.show_blame_popover(&blame_entry, mouse_position, cx);
2349 } else {
2350 editor.hide_blame_popover(cx);
2351 }
2352 });
2353
2354 let should_draw = self.editor.read_with(cx, |editor, _| {
2355 editor
2356 .inline_blame_popover
2357 .as_ref()
2358 .map_or(false, |state| state.show_task.is_none())
2359 });
2360
2361 if should_draw {
2362 let maybe_element = self.editor.update(cx, |editor, cx| {
2363 editor
2364 .workspace()
2365 .map(|workspace| workspace.downgrade())
2366 .zip(
2367 editor
2368 .inline_blame_popover
2369 .as_ref()
2370 .map(|p| p.popover_state.clone()),
2371 )
2372 .and_then(|(workspace, popover_state)| {
2373 render_blame_entry_popover(
2374 blame_entry,
2375 popover_state.scroll_handle,
2376 popover_state.commit_message,
2377 popover_state.markdown,
2378 workspace,
2379 &blame,
2380 window,
2381 cx,
2382 )
2383 })
2384 });
2385
2386 if let Some(mut element) = maybe_element {
2387 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2388 let origin = self.editor.read_with(cx, |editor, _| {
2389 let target_point = editor
2390 .inline_blame_popover
2391 .as_ref()
2392 .map_or(mouse_position, |state| state.position);
2393
2394 let overall_height = size.height + HOVER_POPOVER_GAP;
2395 let popover_origin = if target_point.y > overall_height {
2396 point(target_point.x, target_point.y - size.height)
2397 } else {
2398 point(
2399 target_point.x,
2400 target_point.y + line_height + HOVER_POPOVER_GAP,
2401 )
2402 };
2403
2404 let horizontal_offset = (text_hitbox.top_right().x
2405 - POPOVER_RIGHT_OFFSET
2406 - (popover_origin.x + size.width))
2407 .min(Pixels::ZERO);
2408
2409 point(popover_origin.x + horizontal_offset, popover_origin.y)
2410 });
2411
2412 let popover_bounds = Bounds::new(origin, size);
2413 self.editor.update(cx, |editor, _| {
2414 if let Some(state) = &mut editor.inline_blame_popover {
2415 state.popover_bounds = Some(popover_bounds);
2416 }
2417 });
2418
2419 window.defer_draw(element, origin, 2);
2420 }
2421 }
2422 }
2423
2424 fn layout_blame_entries(
2425 &self,
2426 buffer_rows: &[RowInfo],
2427 em_width: Pixels,
2428 scroll_position: gpui::Point<f32>,
2429 line_height: Pixels,
2430 gutter_hitbox: &Hitbox,
2431 max_width: Option<Pixels>,
2432 window: &mut Window,
2433 cx: &mut App,
2434 ) -> Option<Vec<AnyElement>> {
2435 if !self
2436 .editor
2437 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
2438 {
2439 return None;
2440 }
2441
2442 let blame = self.editor.read(cx).blame.clone()?;
2443 let workspace = self.editor.read(cx).workspace()?;
2444 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
2445 blame.blame_for_rows(buffer_rows, cx).collect()
2446 });
2447
2448 let width = if let Some(max_width) = max_width {
2449 AvailableSpace::Definite(max_width)
2450 } else {
2451 AvailableSpace::MaxContent
2452 };
2453 let scroll_top = scroll_position.y * line_height;
2454 let start_x = em_width;
2455
2456 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
2457 let blame_renderer = cx.global::<GlobalBlameRenderer>().0.clone();
2458
2459 let shaped_lines = blamed_rows
2460 .into_iter()
2461 .enumerate()
2462 .flat_map(|(ix, blame_entry)| {
2463 let mut element = render_blame_entry(
2464 ix,
2465 &blame,
2466 blame_entry?,
2467 &self.style,
2468 &mut last_used_color,
2469 self.editor.clone(),
2470 workspace.clone(),
2471 blame_renderer.clone(),
2472 cx,
2473 )?;
2474
2475 let start_y = ix as f32 * line_height - (scroll_top % line_height);
2476 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
2477
2478 element.prepaint_as_root(
2479 absolute_offset,
2480 size(width, AvailableSpace::MinContent),
2481 window,
2482 cx,
2483 );
2484
2485 Some(element)
2486 })
2487 .collect();
2488
2489 Some(shaped_lines)
2490 }
2491
2492 fn layout_indent_guides(
2493 &self,
2494 content_origin: gpui::Point<Pixels>,
2495 text_origin: gpui::Point<Pixels>,
2496 visible_buffer_range: Range<MultiBufferRow>,
2497 scroll_pixel_position: gpui::Point<Pixels>,
2498 line_height: Pixels,
2499 snapshot: &DisplaySnapshot,
2500 window: &mut Window,
2501 cx: &mut App,
2502 ) -> Option<Vec<IndentGuideLayout>> {
2503 if self.editor.read(cx).mode().is_minimap() {
2504 return None;
2505 }
2506 let indent_guides = self.editor.update(cx, |editor, cx| {
2507 editor.indent_guides(visible_buffer_range, snapshot, cx)
2508 })?;
2509
2510 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
2511 editor
2512 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
2513 .unwrap_or_default()
2514 });
2515
2516 Some(
2517 indent_guides
2518 .into_iter()
2519 .enumerate()
2520 .filter_map(|(i, indent_guide)| {
2521 let single_indent_width =
2522 self.column_pixels(indent_guide.tab_size as usize, window, cx);
2523 let total_width = single_indent_width * indent_guide.depth as f32;
2524 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
2525 if start_x >= text_origin.x {
2526 let (offset_y, length) = Self::calculate_indent_guide_bounds(
2527 indent_guide.start_row..indent_guide.end_row,
2528 line_height,
2529 snapshot,
2530 );
2531
2532 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
2533
2534 Some(IndentGuideLayout {
2535 origin: point(start_x, start_y),
2536 length,
2537 single_indent_width,
2538 depth: indent_guide.depth,
2539 active: active_indent_guide_indices.contains(&i),
2540 settings: indent_guide.settings,
2541 })
2542 } else {
2543 None
2544 }
2545 })
2546 .collect(),
2547 )
2548 }
2549
2550 fn calculate_indent_guide_bounds(
2551 row_range: Range<MultiBufferRow>,
2552 line_height: Pixels,
2553 snapshot: &DisplaySnapshot,
2554 ) -> (gpui::Pixels, gpui::Pixels) {
2555 let start_point = Point::new(row_range.start.0, 0);
2556 let end_point = Point::new(row_range.end.0, 0);
2557
2558 let row_range = start_point.to_display_point(snapshot).row()
2559 ..end_point.to_display_point(snapshot).row();
2560
2561 let mut prev_line = start_point;
2562 prev_line.row = prev_line.row.saturating_sub(1);
2563 let prev_line = prev_line.to_display_point(snapshot).row();
2564
2565 let mut cons_line = end_point;
2566 cons_line.row += 1;
2567 let cons_line = cons_line.to_display_point(snapshot).row();
2568
2569 let mut offset_y = row_range.start.0 as f32 * line_height;
2570 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
2571
2572 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
2573 if row_range.end == cons_line {
2574 length += line_height;
2575 }
2576
2577 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
2578 // we want to extend the indent guide to the start of the block.
2579 let mut block_height = 0;
2580 let mut block_offset = 0;
2581 let mut found_excerpt_header = false;
2582 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
2583 if matches!(block, Block::ExcerptBoundary { .. }) {
2584 found_excerpt_header = true;
2585 break;
2586 }
2587 block_offset += block.height();
2588 block_height += block.height();
2589 }
2590 if !found_excerpt_header {
2591 offset_y -= block_offset as f32 * line_height;
2592 length += block_height as f32 * line_height;
2593 }
2594
2595 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
2596 // we want to ensure that the indent guide stops before the excerpt header.
2597 let mut block_height = 0;
2598 let mut found_excerpt_header = false;
2599 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
2600 if matches!(block, Block::ExcerptBoundary { .. }) {
2601 found_excerpt_header = true;
2602 }
2603 block_height += block.height();
2604 }
2605 if found_excerpt_header {
2606 length -= block_height as f32 * line_height;
2607 }
2608
2609 (offset_y, length)
2610 }
2611
2612 fn layout_breakpoints(
2613 &self,
2614 line_height: Pixels,
2615 range: Range<DisplayRow>,
2616 scroll_pixel_position: gpui::Point<Pixels>,
2617 gutter_dimensions: &GutterDimensions,
2618 gutter_hitbox: &Hitbox,
2619 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2620 snapshot: &EditorSnapshot,
2621 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
2622 row_infos: &[RowInfo],
2623 window: &mut Window,
2624 cx: &mut App,
2625 ) -> Vec<AnyElement> {
2626 self.editor.update(cx, |editor, cx| {
2627 breakpoints
2628 .into_iter()
2629 .filter_map(|(display_row, (text_anchor, bp, state))| {
2630 if row_infos
2631 .get((display_row.0.saturating_sub(range.start.0)) as usize)
2632 .is_some_and(|row_info| {
2633 row_info.expand_info.is_some()
2634 || row_info
2635 .diff_status
2636 .is_some_and(|status| status.is_deleted())
2637 })
2638 {
2639 return None;
2640 }
2641
2642 if range.start > display_row || range.end < display_row {
2643 return None;
2644 }
2645
2646 let row =
2647 MultiBufferRow(DisplayPoint::new(display_row, 0).to_point(&snapshot).row);
2648 if snapshot.is_line_folded(row) {
2649 return None;
2650 }
2651
2652 let button = editor.render_breakpoint(text_anchor, display_row, &bp, state, cx);
2653
2654 let button = prepaint_gutter_button(
2655 button,
2656 display_row,
2657 line_height,
2658 gutter_dimensions,
2659 scroll_pixel_position,
2660 gutter_hitbox,
2661 display_hunks,
2662 window,
2663 cx,
2664 );
2665 Some(button)
2666 })
2667 .collect_vec()
2668 })
2669 }
2670
2671 #[allow(clippy::too_many_arguments)]
2672 fn layout_run_indicators(
2673 &self,
2674 line_height: Pixels,
2675 range: Range<DisplayRow>,
2676 row_infos: &[RowInfo],
2677 scroll_pixel_position: gpui::Point<Pixels>,
2678 gutter_dimensions: &GutterDimensions,
2679 gutter_hitbox: &Hitbox,
2680 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2681 snapshot: &EditorSnapshot,
2682 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
2683 window: &mut Window,
2684 cx: &mut App,
2685 ) -> Vec<AnyElement> {
2686 self.editor.update(cx, |editor, cx| {
2687 let active_task_indicator_row =
2688 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2689 deployed_from,
2690 actions,
2691 ..
2692 })) = editor.context_menu.borrow().as_ref()
2693 {
2694 actions
2695 .tasks()
2696 .map(|tasks| tasks.position.to_display_point(snapshot).row())
2697 .or_else(|| match deployed_from {
2698 Some(CodeActionSource::Indicator(row)) => Some(*row),
2699 _ => None,
2700 })
2701 } else {
2702 None
2703 };
2704
2705 let offset_range_start =
2706 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
2707
2708 let offset_range_end =
2709 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
2710
2711 editor
2712 .tasks
2713 .iter()
2714 .filter_map(|(_, tasks)| {
2715 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot);
2716 if multibuffer_point < offset_range_start
2717 || multibuffer_point > offset_range_end
2718 {
2719 return None;
2720 }
2721 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
2722 let buffer_folded = snapshot
2723 .buffer_snapshot
2724 .buffer_line_for_row(multibuffer_row)
2725 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
2726 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
2727 .unwrap_or(false);
2728 if buffer_folded {
2729 return None;
2730 }
2731
2732 if snapshot.is_line_folded(multibuffer_row) {
2733 // Skip folded indicators, unless it's the starting line of a fold.
2734 if multibuffer_row
2735 .0
2736 .checked_sub(1)
2737 .map_or(false, |previous_row| {
2738 snapshot.is_line_folded(MultiBufferRow(previous_row))
2739 })
2740 {
2741 return None;
2742 }
2743 }
2744
2745 let display_row = multibuffer_point.to_display_point(snapshot).row();
2746 if !range.contains(&display_row) {
2747 return None;
2748 }
2749 if row_infos
2750 .get((display_row - range.start).0 as usize)
2751 .is_some_and(|row_info| row_info.expand_info.is_some())
2752 {
2753 return None;
2754 }
2755
2756 let button = editor.render_run_indicator(
2757 &self.style,
2758 Some(display_row) == active_task_indicator_row,
2759 display_row,
2760 breakpoints.remove(&display_row),
2761 cx,
2762 );
2763
2764 let button = prepaint_gutter_button(
2765 button,
2766 display_row,
2767 line_height,
2768 gutter_dimensions,
2769 scroll_pixel_position,
2770 gutter_hitbox,
2771 display_hunks,
2772 window,
2773 cx,
2774 );
2775 Some(button)
2776 })
2777 .collect_vec()
2778 })
2779 }
2780
2781 fn layout_expand_toggles(
2782 &self,
2783 gutter_hitbox: &Hitbox,
2784 gutter_dimensions: GutterDimensions,
2785 em_width: Pixels,
2786 line_height: Pixels,
2787 scroll_position: gpui::Point<f32>,
2788 buffer_rows: &[RowInfo],
2789 window: &mut Window,
2790 cx: &mut App,
2791 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
2792 if self.editor.read(cx).disable_expand_excerpt_buttons {
2793 return vec![];
2794 }
2795
2796 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
2797
2798 let scroll_top = scroll_position.y * line_height;
2799
2800 let max_line_number_length = self
2801 .editor
2802 .read(cx)
2803 .buffer()
2804 .read(cx)
2805 .snapshot(cx)
2806 .widest_line_number()
2807 .ilog10()
2808 + 1;
2809
2810 let elements = buffer_rows
2811 .into_iter()
2812 .enumerate()
2813 .map(|(ix, row_info)| {
2814 let ExpandInfo {
2815 excerpt_id,
2816 direction,
2817 } = row_info.expand_info?;
2818
2819 let icon_name = match direction {
2820 ExpandExcerptDirection::Up => IconName::ExpandUp,
2821 ExpandExcerptDirection::Down => IconName::ExpandDown,
2822 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
2823 };
2824
2825 let git_gutter_width = Self::gutter_strip_width(line_height);
2826 let available_width = gutter_dimensions.left_padding - git_gutter_width;
2827
2828 let editor = self.editor.clone();
2829 let is_wide = max_line_number_length >= MIN_LINE_NUMBER_DIGITS
2830 && row_info
2831 .buffer_row
2832 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
2833 || gutter_dimensions.right_padding == px(0.);
2834
2835 let width = if is_wide {
2836 available_width - px(2.)
2837 } else {
2838 available_width + em_width - px(2.)
2839 };
2840
2841 let toggle = IconButton::new(("expand", ix), icon_name)
2842 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
2843 .selected_icon_color(Color::Custom(cx.theme().colors().editor_foreground))
2844 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
2845 .width(width.into())
2846 .on_click(move |_, window, cx| {
2847 editor.update(cx, |editor, cx| {
2848 editor.expand_excerpt(excerpt_id, direction, window, cx);
2849 });
2850 })
2851 .tooltip(Tooltip::for_action_title(
2852 "Expand Excerpt",
2853 &crate::actions::ExpandExcerpts::default(),
2854 ))
2855 .into_any_element();
2856
2857 let position = point(
2858 git_gutter_width + px(1.),
2859 ix as f32 * line_height - (scroll_top % line_height) + px(1.),
2860 );
2861 let origin = gutter_hitbox.origin + position;
2862
2863 Some((toggle, origin))
2864 })
2865 .collect();
2866
2867 elements
2868 }
2869
2870 fn calculate_relative_line_numbers(
2871 &self,
2872 snapshot: &EditorSnapshot,
2873 rows: &Range<DisplayRow>,
2874 relative_to: Option<DisplayRow>,
2875 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2876 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2877 let Some(relative_to) = relative_to else {
2878 return relative_rows;
2879 };
2880
2881 let start = rows.start.min(relative_to);
2882 let end = rows.end.max(relative_to);
2883
2884 let buffer_rows = snapshot
2885 .row_infos(start)
2886 .take(1 + end.minus(start) as usize)
2887 .collect::<Vec<_>>();
2888
2889 let head_idx = relative_to.minus(start);
2890 let mut delta = 1;
2891 let mut i = head_idx + 1;
2892 while i < buffer_rows.len() as u32 {
2893 if buffer_rows[i as usize].buffer_row.is_some() {
2894 if rows.contains(&DisplayRow(i + start.0)) {
2895 relative_rows.insert(DisplayRow(i + start.0), delta);
2896 }
2897 delta += 1;
2898 }
2899 i += 1;
2900 }
2901 delta = 1;
2902 i = head_idx.min(buffer_rows.len() as u32 - 1);
2903 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2904 i -= 1;
2905 }
2906
2907 while i > 0 {
2908 i -= 1;
2909 if buffer_rows[i as usize].buffer_row.is_some() {
2910 if rows.contains(&DisplayRow(i + start.0)) {
2911 relative_rows.insert(DisplayRow(i + start.0), delta);
2912 }
2913 delta += 1;
2914 }
2915 }
2916
2917 relative_rows
2918 }
2919
2920 fn layout_line_numbers(
2921 &self,
2922 gutter_hitbox: Option<&Hitbox>,
2923 gutter_dimensions: GutterDimensions,
2924 line_height: Pixels,
2925 scroll_position: gpui::Point<f32>,
2926 rows: Range<DisplayRow>,
2927 buffer_rows: &[RowInfo],
2928 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
2929 newest_selection_head: Option<DisplayPoint>,
2930 snapshot: &EditorSnapshot,
2931 window: &mut Window,
2932 cx: &mut App,
2933 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2934 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2935 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode.is_full()
2936 });
2937 if !include_line_numbers {
2938 return Arc::default();
2939 }
2940
2941 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2942 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2943 let newest = editor.selections.newest::<Point>(cx);
2944 SelectionLayout::new(
2945 newest,
2946 editor.selections.line_mode,
2947 editor.cursor_shape,
2948 &snapshot.display_snapshot,
2949 true,
2950 true,
2951 None,
2952 )
2953 .head
2954 });
2955 let is_relative = editor.should_use_relative_line_numbers(cx);
2956 (newest_selection_head, is_relative)
2957 });
2958
2959 let relative_to = if is_relative {
2960 Some(newest_selection_head.row())
2961 } else {
2962 None
2963 };
2964 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2965 let mut line_number = String::new();
2966 let line_numbers = buffer_rows
2967 .into_iter()
2968 .enumerate()
2969 .flat_map(|(ix, row_info)| {
2970 let display_row = DisplayRow(rows.start.0 + ix as u32);
2971 line_number.clear();
2972 let non_relative_number = row_info.buffer_row? + 1;
2973 let number = relative_rows
2974 .get(&display_row)
2975 .unwrap_or(&non_relative_number);
2976 write!(&mut line_number, "{number}").unwrap();
2977 if row_info
2978 .diff_status
2979 .is_some_and(|status| status.is_deleted())
2980 {
2981 return None;
2982 }
2983
2984 let color = active_rows
2985 .get(&display_row)
2986 .map(|spec| {
2987 if spec.breakpoint {
2988 cx.theme().colors().debugger_accent
2989 } else {
2990 cx.theme().colors().editor_active_line_number
2991 }
2992 })
2993 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
2994 let shaped_line =
2995 self.shape_line_number(SharedString::from(&line_number), color, window);
2996 let scroll_top = scroll_position.y * line_height;
2997 let line_origin = gutter_hitbox.map(|hitbox| {
2998 hitbox.origin
2999 + point(
3000 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
3001 ix as f32 * line_height - (scroll_top % line_height),
3002 )
3003 });
3004
3005 #[cfg(not(test))]
3006 let hitbox = line_origin.map(|line_origin| {
3007 window.insert_hitbox(
3008 Bounds::new(line_origin, size(shaped_line.width, line_height)),
3009 HitboxBehavior::Normal,
3010 )
3011 });
3012 #[cfg(test)]
3013 let hitbox = {
3014 let _ = line_origin;
3015 None
3016 };
3017
3018 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
3019 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
3020 let line_number = LineNumberLayout {
3021 shaped_line,
3022 hitbox,
3023 };
3024 Some((multi_buffer_row, line_number))
3025 })
3026 .collect();
3027 Arc::new(line_numbers)
3028 }
3029
3030 fn layout_crease_toggles(
3031 &self,
3032 rows: Range<DisplayRow>,
3033 row_infos: &[RowInfo],
3034 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3035 snapshot: &EditorSnapshot,
3036 window: &mut Window,
3037 cx: &mut App,
3038 ) -> Vec<Option<AnyElement>> {
3039 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
3040 && snapshot.mode.is_full()
3041 && self.editor.read(cx).is_singleton(cx);
3042 if include_fold_statuses {
3043 row_infos
3044 .into_iter()
3045 .enumerate()
3046 .map(|(ix, info)| {
3047 if info.expand_info.is_some() {
3048 return None;
3049 }
3050 let row = info.multibuffer_row?;
3051 let display_row = DisplayRow(rows.start.0 + ix as u32);
3052 let active = active_rows.contains_key(&display_row);
3053
3054 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
3055 })
3056 .collect()
3057 } else {
3058 Vec::new()
3059 }
3060 }
3061
3062 fn layout_crease_trailers(
3063 &self,
3064 buffer_rows: impl IntoIterator<Item = RowInfo>,
3065 snapshot: &EditorSnapshot,
3066 window: &mut Window,
3067 cx: &mut App,
3068 ) -> Vec<Option<AnyElement>> {
3069 buffer_rows
3070 .into_iter()
3071 .map(|row_info| {
3072 if row_info.expand_info.is_some() {
3073 return None;
3074 }
3075 if let Some(row) = row_info.multibuffer_row {
3076 snapshot.render_crease_trailer(row, window, cx)
3077 } else {
3078 None
3079 }
3080 })
3081 .collect()
3082 }
3083
3084 fn layout_lines(
3085 rows: Range<DisplayRow>,
3086 snapshot: &EditorSnapshot,
3087 style: &EditorStyle,
3088 editor_width: Pixels,
3089 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3090 window: &mut Window,
3091 cx: &mut App,
3092 ) -> Vec<LineWithInvisibles> {
3093 if rows.start >= rows.end {
3094 return Vec::new();
3095 }
3096
3097 // Show the placeholder when the editor is empty
3098 if snapshot.is_empty() {
3099 let font_size = style.text.font_size.to_pixels(window.rem_size());
3100 let placeholder_color = cx.theme().colors().text_placeholder;
3101 let placeholder_text = snapshot.placeholder_text();
3102
3103 let placeholder_lines = placeholder_text
3104 .as_ref()
3105 .map_or("", AsRef::as_ref)
3106 .split('\n')
3107 .skip(rows.start.0 as usize)
3108 .chain(iter::repeat(""))
3109 .take(rows.len());
3110 placeholder_lines
3111 .map(move |line| {
3112 let run = TextRun {
3113 len: line.len(),
3114 font: style.text.font(),
3115 color: placeholder_color,
3116 background_color: None,
3117 underline: None,
3118 strikethrough: None,
3119 };
3120 let line =
3121 window
3122 .text_system()
3123 .shape_line(line.to_string().into(), font_size, &[run]);
3124 LineWithInvisibles {
3125 width: line.width,
3126 len: line.len,
3127 fragments: smallvec![LineFragment::Text(line)],
3128 invisibles: Vec::new(),
3129 font_size,
3130 }
3131 })
3132 .collect()
3133 } else {
3134 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
3135 LineWithInvisibles::from_chunks(
3136 chunks,
3137 &style,
3138 MAX_LINE_LEN,
3139 rows.len(),
3140 &snapshot.mode,
3141 editor_width,
3142 is_row_soft_wrapped,
3143 window,
3144 cx,
3145 )
3146 }
3147 }
3148
3149 fn prepaint_lines(
3150 &self,
3151 start_row: DisplayRow,
3152 line_layouts: &mut [LineWithInvisibles],
3153 line_height: Pixels,
3154 scroll_pixel_position: gpui::Point<Pixels>,
3155 content_origin: gpui::Point<Pixels>,
3156 window: &mut Window,
3157 cx: &mut App,
3158 ) -> SmallVec<[AnyElement; 1]> {
3159 let mut line_elements = SmallVec::new();
3160 for (ix, line) in line_layouts.iter_mut().enumerate() {
3161 let row = start_row + DisplayRow(ix as u32);
3162 line.prepaint(
3163 line_height,
3164 scroll_pixel_position,
3165 row,
3166 content_origin,
3167 &mut line_elements,
3168 window,
3169 cx,
3170 );
3171 }
3172 line_elements
3173 }
3174
3175 fn render_block(
3176 &self,
3177 block: &Block,
3178 available_width: AvailableSpace,
3179 block_id: BlockId,
3180 block_row_start: DisplayRow,
3181 snapshot: &EditorSnapshot,
3182 text_x: Pixels,
3183 rows: &Range<DisplayRow>,
3184 line_layouts: &[LineWithInvisibles],
3185 editor_margins: &EditorMargins,
3186 line_height: Pixels,
3187 em_width: Pixels,
3188 text_hitbox: &Hitbox,
3189 editor_width: Pixels,
3190 scroll_width: &mut Pixels,
3191 resized_blocks: &mut HashMap<CustomBlockId, u32>,
3192 row_block_types: &mut HashMap<DisplayRow, bool>,
3193 selections: &[Selection<Point>],
3194 selected_buffer_ids: &Vec<BufferId>,
3195 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3196 sticky_header_excerpt_id: Option<ExcerptId>,
3197 window: &mut Window,
3198 cx: &mut App,
3199 ) -> Option<(AnyElement, Size<Pixels>, DisplayRow, Pixels)> {
3200 let mut x_position = None;
3201 let mut element = match block {
3202 Block::Custom(custom) => {
3203 let block_start = custom.start().to_point(&snapshot.buffer_snapshot);
3204 let block_end = custom.end().to_point(&snapshot.buffer_snapshot);
3205 if block.place_near() && snapshot.is_line_folded(MultiBufferRow(block_start.row)) {
3206 return None;
3207 }
3208 let align_to = block_start.to_display_point(snapshot);
3209 let x_and_width = |layout: &LineWithInvisibles| {
3210 Some((
3211 text_x + layout.x_for_index(align_to.column() as usize),
3212 text_x + layout.width,
3213 ))
3214 };
3215 let line_ix = align_to.row().0.checked_sub(rows.start.0);
3216 x_position =
3217 if let Some(layout) = line_ix.and_then(|ix| line_layouts.get(ix as usize)) {
3218 x_and_width(&layout)
3219 } else {
3220 x_and_width(&layout_line(
3221 align_to.row(),
3222 snapshot,
3223 &self.style,
3224 editor_width,
3225 is_row_soft_wrapped,
3226 window,
3227 cx,
3228 ))
3229 };
3230
3231 let anchor_x = x_position.unwrap().0;
3232
3233 let selected = selections
3234 .binary_search_by(|selection| {
3235 if selection.end <= block_start {
3236 Ordering::Less
3237 } else if selection.start >= block_end {
3238 Ordering::Greater
3239 } else {
3240 Ordering::Equal
3241 }
3242 })
3243 .is_ok();
3244
3245 div()
3246 .size_full()
3247 .children(
3248 (!snapshot.mode.is_minimap() || custom.render_in_minimap).then(|| {
3249 custom.render(&mut BlockContext {
3250 window,
3251 app: cx,
3252 anchor_x,
3253 margins: editor_margins,
3254 line_height,
3255 em_width,
3256 block_id,
3257 selected,
3258 max_width: text_hitbox.size.width.max(*scroll_width),
3259 editor_style: &self.style,
3260 })
3261 }),
3262 )
3263 .into_any()
3264 }
3265
3266 Block::FoldedBuffer {
3267 first_excerpt,
3268 height,
3269 ..
3270 } => {
3271 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
3272 let result = v_flex().id(block_id).w_full().pr(editor_margins.right);
3273
3274 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
3275 result
3276 .child(self.render_buffer_header(
3277 first_excerpt,
3278 true,
3279 selected,
3280 false,
3281 jump_data,
3282 window,
3283 cx,
3284 ))
3285 .into_any_element()
3286 }
3287
3288 Block::ExcerptBoundary {
3289 excerpt,
3290 height,
3291 starts_new_buffer,
3292 ..
3293 } => {
3294 let color = cx.theme().colors().clone();
3295 let mut result = v_flex().id(block_id).w_full();
3296
3297 let jump_data = header_jump_data(snapshot, block_row_start, *height, excerpt);
3298
3299 if *starts_new_buffer {
3300 if sticky_header_excerpt_id != Some(excerpt.id) {
3301 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3302
3303 result = result.child(div().pr(editor_margins.right).child(
3304 self.render_buffer_header(
3305 excerpt, false, selected, false, jump_data, window, cx,
3306 ),
3307 ));
3308 } else {
3309 result =
3310 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
3311 }
3312 } else {
3313 result = result.child(
3314 h_flex().relative().child(
3315 div()
3316 .top(line_height / 2.)
3317 .absolute()
3318 .w_full()
3319 .h_px()
3320 .bg(color.border_variant),
3321 ),
3322 );
3323 };
3324
3325 result.into_any()
3326 }
3327 };
3328
3329 // Discover the element's content height, then round up to the nearest multiple of line height.
3330 let preliminary_size = element.layout_as_root(
3331 size(available_width, AvailableSpace::MinContent),
3332 window,
3333 cx,
3334 );
3335 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
3336 let final_size = if preliminary_size.height == quantized_height {
3337 preliminary_size
3338 } else {
3339 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
3340 };
3341 let mut element_height_in_lines = ((final_size.height / line_height).ceil() as u32).max(1);
3342
3343 let mut row = block_row_start;
3344 let mut x_offset = px(0.);
3345 let mut is_block = true;
3346
3347 if let BlockId::Custom(custom_block_id) = block_id {
3348 if block.has_height() {
3349 if block.place_near() {
3350 if let Some((x_target, line_width)) = x_position {
3351 let margin = em_width * 2;
3352 if line_width + final_size.width + margin
3353 < editor_width + editor_margins.gutter.full_width()
3354 && !row_block_types.contains_key(&(row - 1))
3355 && element_height_in_lines == 1
3356 {
3357 x_offset = line_width + margin;
3358 row = row - 1;
3359 is_block = false;
3360 element_height_in_lines = 0;
3361 row_block_types.insert(row, is_block);
3362 } else {
3363 let max_offset = editor_width + editor_margins.gutter.full_width()
3364 - final_size.width;
3365 let min_offset = (x_target + em_width - final_size.width)
3366 .max(editor_margins.gutter.full_width());
3367 x_offset = x_target.min(max_offset).max(min_offset);
3368 }
3369 }
3370 };
3371 if element_height_in_lines != block.height() {
3372 resized_blocks.insert(custom_block_id, element_height_in_lines);
3373 }
3374 }
3375 }
3376 for i in 0..element_height_in_lines {
3377 row_block_types.insert(row + i, is_block);
3378 }
3379
3380 Some((element, final_size, row, x_offset))
3381 }
3382
3383 fn render_buffer_header(
3384 &self,
3385 for_excerpt: &ExcerptInfo,
3386 is_folded: bool,
3387 is_selected: bool,
3388 is_sticky: bool,
3389 jump_data: JumpData,
3390 window: &mut Window,
3391 cx: &mut App,
3392 ) -> Div {
3393 let editor = self.editor.read(cx);
3394 let file_status = editor
3395 .buffer
3396 .read(cx)
3397 .all_diff_hunks_expanded()
3398 .then(|| {
3399 editor
3400 .project
3401 .as_ref()?
3402 .read(cx)
3403 .status_for_buffer_id(for_excerpt.buffer_id, cx)
3404 })
3405 .flatten();
3406
3407 let include_root = editor
3408 .project
3409 .as_ref()
3410 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
3411 .unwrap_or_default();
3412 let can_open_excerpts = Editor::can_open_excerpts_in_file(for_excerpt.buffer.file());
3413 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
3414 let filename = path
3415 .as_ref()
3416 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
3417 let parent_path = path.as_ref().and_then(|path| {
3418 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
3419 });
3420 let focus_handle = editor.focus_handle(cx);
3421 let colors = cx.theme().colors();
3422
3423 div()
3424 .p_1()
3425 .w_full()
3426 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
3427 .child(
3428 h_flex()
3429 .size_full()
3430 .gap_2()
3431 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
3432 .pl_0p5()
3433 .pr_5()
3434 .rounded_sm()
3435 .when(is_sticky, |el| el.shadow_md())
3436 .border_1()
3437 .map(|div| {
3438 let border_color = if is_selected
3439 && is_folded
3440 && focus_handle.contains_focused(window, cx)
3441 {
3442 colors.border_focused
3443 } else {
3444 colors.border
3445 };
3446 div.border_color(border_color)
3447 })
3448 .bg(colors.editor_subheader_background)
3449 .hover(|style| style.bg(colors.element_hover))
3450 .map(|header| {
3451 let editor = self.editor.clone();
3452 let buffer_id = for_excerpt.buffer_id;
3453 let toggle_chevron_icon =
3454 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
3455 header.child(
3456 div()
3457 .hover(|style| style.bg(colors.element_selected))
3458 .rounded_xs()
3459 .child(
3460 ButtonLike::new("toggle-buffer-fold")
3461 .style(ui::ButtonStyle::Transparent)
3462 .height(px(28.).into())
3463 .width(px(28.).into())
3464 .children(toggle_chevron_icon)
3465 .tooltip({
3466 let focus_handle = focus_handle.clone();
3467 move |window, cx| {
3468 Tooltip::for_action_in(
3469 "Toggle Excerpt Fold",
3470 &ToggleFold,
3471 &focus_handle,
3472 window,
3473 cx,
3474 )
3475 }
3476 })
3477 .on_click(move |_, _, cx| {
3478 if is_folded {
3479 editor.update(cx, |editor, cx| {
3480 editor.unfold_buffer(buffer_id, cx);
3481 });
3482 } else {
3483 editor.update(cx, |editor, cx| {
3484 editor.fold_buffer(buffer_id, cx);
3485 });
3486 }
3487 }),
3488 ),
3489 )
3490 })
3491 .children(
3492 editor
3493 .addons
3494 .values()
3495 .filter_map(|addon| {
3496 addon.render_buffer_header_controls(for_excerpt, window, cx)
3497 })
3498 .take(1),
3499 )
3500 .child(
3501 h_flex()
3502 .cursor_pointer()
3503 .id("path header block")
3504 .size_full()
3505 .justify_between()
3506 .child(
3507 h_flex()
3508 .gap_2()
3509 .child(
3510 Label::new(
3511 filename
3512 .map(SharedString::from)
3513 .unwrap_or_else(|| "untitled".into()),
3514 )
3515 .single_line()
3516 .when_some(
3517 file_status,
3518 |el, status| {
3519 el.color(if status.is_conflicted() {
3520 Color::Conflict
3521 } else if status.is_modified() {
3522 Color::Modified
3523 } else if status.is_deleted() {
3524 Color::Disabled
3525 } else {
3526 Color::Created
3527 })
3528 .when(status.is_deleted(), |el| el.strikethrough())
3529 },
3530 ),
3531 )
3532 .when_some(parent_path, |then, path| {
3533 then.child(div().child(path).text_color(
3534 if file_status.is_some_and(FileStatus::is_deleted) {
3535 colors.text_disabled
3536 } else {
3537 colors.text_muted
3538 },
3539 ))
3540 }),
3541 )
3542 .when(can_open_excerpts && is_selected && path.is_some(), |el| {
3543 el.child(
3544 h_flex()
3545 .id("jump-to-file-button")
3546 .gap_2p5()
3547 .child(Label::new("Jump To File"))
3548 .children(
3549 KeyBinding::for_action_in(
3550 &OpenExcerpts,
3551 &focus_handle,
3552 window,
3553 cx,
3554 )
3555 .map(|binding| binding.into_any_element()),
3556 ),
3557 )
3558 })
3559 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
3560 .on_click(window.listener_for(&self.editor, {
3561 move |editor, e: &ClickEvent, window, cx| {
3562 editor.open_excerpts_common(
3563 Some(jump_data.clone()),
3564 e.down.modifiers.secondary(),
3565 window,
3566 cx,
3567 );
3568 }
3569 })),
3570 ),
3571 )
3572 }
3573
3574 fn render_blocks(
3575 &self,
3576 rows: Range<DisplayRow>,
3577 snapshot: &EditorSnapshot,
3578 hitbox: &Hitbox,
3579 text_hitbox: &Hitbox,
3580 editor_width: Pixels,
3581 scroll_width: &mut Pixels,
3582 editor_margins: &EditorMargins,
3583 em_width: Pixels,
3584 text_x: Pixels,
3585 line_height: Pixels,
3586 line_layouts: &mut [LineWithInvisibles],
3587 selections: &[Selection<Point>],
3588 selected_buffer_ids: &Vec<BufferId>,
3589 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3590 sticky_header_excerpt_id: Option<ExcerptId>,
3591 window: &mut Window,
3592 cx: &mut App,
3593 ) -> Result<(Vec<BlockLayout>, HashMap<DisplayRow, bool>), HashMap<CustomBlockId, u32>> {
3594 let (fixed_blocks, non_fixed_blocks) = snapshot
3595 .blocks_in_range(rows.clone())
3596 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
3597
3598 let mut focused_block = self
3599 .editor
3600 .update(cx, |editor, _| editor.take_focused_block());
3601 let mut fixed_block_max_width = Pixels::ZERO;
3602 let mut blocks = Vec::new();
3603 let mut resized_blocks = HashMap::default();
3604 let mut row_block_types = HashMap::default();
3605
3606 for (row, block) in fixed_blocks {
3607 let block_id = block.id();
3608
3609 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3610 focused_block = None;
3611 }
3612
3613 if let Some((element, element_size, row, x_offset)) = self.render_block(
3614 block,
3615 AvailableSpace::MinContent,
3616 block_id,
3617 row,
3618 snapshot,
3619 text_x,
3620 &rows,
3621 line_layouts,
3622 editor_margins,
3623 line_height,
3624 em_width,
3625 text_hitbox,
3626 editor_width,
3627 scroll_width,
3628 &mut resized_blocks,
3629 &mut row_block_types,
3630 selections,
3631 selected_buffer_ids,
3632 is_row_soft_wrapped,
3633 sticky_header_excerpt_id,
3634 window,
3635 cx,
3636 ) {
3637 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
3638 blocks.push(BlockLayout {
3639 id: block_id,
3640 x_offset,
3641 row: Some(row),
3642 element,
3643 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
3644 style: BlockStyle::Fixed,
3645 overlaps_gutter: true,
3646 is_buffer_header: block.is_buffer_header(),
3647 });
3648 }
3649 }
3650
3651 for (row, block) in non_fixed_blocks {
3652 let style = block.style();
3653 let width = match (style, block.place_near()) {
3654 (_, true) => AvailableSpace::MinContent,
3655 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
3656 (BlockStyle::Flex, _) => hitbox
3657 .size
3658 .width
3659 .max(fixed_block_max_width)
3660 .max(editor_margins.gutter.width + *scroll_width)
3661 .into(),
3662 (BlockStyle::Fixed, _) => unreachable!(),
3663 };
3664 let block_id = block.id();
3665
3666 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3667 focused_block = None;
3668 }
3669
3670 if let Some((element, element_size, row, x_offset)) = self.render_block(
3671 block,
3672 width,
3673 block_id,
3674 row,
3675 snapshot,
3676 text_x,
3677 &rows,
3678 line_layouts,
3679 editor_margins,
3680 line_height,
3681 em_width,
3682 text_hitbox,
3683 editor_width,
3684 scroll_width,
3685 &mut resized_blocks,
3686 &mut row_block_types,
3687 selections,
3688 selected_buffer_ids,
3689 is_row_soft_wrapped,
3690 sticky_header_excerpt_id,
3691 window,
3692 cx,
3693 ) {
3694 blocks.push(BlockLayout {
3695 id: block_id,
3696 x_offset,
3697 row: Some(row),
3698 element,
3699 available_space: size(width, element_size.height.into()),
3700 style,
3701 overlaps_gutter: !block.place_near(),
3702 is_buffer_header: block.is_buffer_header(),
3703 });
3704 }
3705 }
3706
3707 if let Some(focused_block) = focused_block {
3708 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
3709 if focus_handle.is_focused(window) {
3710 if let Some(block) = snapshot.block_for_id(focused_block.id) {
3711 let style = block.style();
3712 let width = match style {
3713 BlockStyle::Fixed => AvailableSpace::MinContent,
3714 BlockStyle::Flex => AvailableSpace::Definite(
3715 hitbox
3716 .size
3717 .width
3718 .max(fixed_block_max_width)
3719 .max(editor_margins.gutter.width + *scroll_width),
3720 ),
3721 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
3722 };
3723
3724 if let Some((element, element_size, _, x_offset)) = self.render_block(
3725 &block,
3726 width,
3727 focused_block.id,
3728 rows.end,
3729 snapshot,
3730 text_x,
3731 &rows,
3732 line_layouts,
3733 editor_margins,
3734 line_height,
3735 em_width,
3736 text_hitbox,
3737 editor_width,
3738 scroll_width,
3739 &mut resized_blocks,
3740 &mut row_block_types,
3741 selections,
3742 selected_buffer_ids,
3743 is_row_soft_wrapped,
3744 sticky_header_excerpt_id,
3745 window,
3746 cx,
3747 ) {
3748 blocks.push(BlockLayout {
3749 id: block.id(),
3750 x_offset,
3751 row: None,
3752 element,
3753 available_space: size(width, element_size.height.into()),
3754 style,
3755 overlaps_gutter: true,
3756 is_buffer_header: block.is_buffer_header(),
3757 });
3758 }
3759 }
3760 }
3761 }
3762 }
3763
3764 if resized_blocks.is_empty() {
3765 *scroll_width =
3766 (*scroll_width).max(fixed_block_max_width - editor_margins.gutter.width);
3767 Ok((blocks, row_block_types))
3768 } else {
3769 Err(resized_blocks)
3770 }
3771 }
3772
3773 fn layout_blocks(
3774 &self,
3775 blocks: &mut Vec<BlockLayout>,
3776 hitbox: &Hitbox,
3777 line_height: Pixels,
3778 scroll_pixel_position: gpui::Point<Pixels>,
3779 window: &mut Window,
3780 cx: &mut App,
3781 ) {
3782 for block in blocks {
3783 let mut origin = if let Some(row) = block.row {
3784 hitbox.origin
3785 + point(
3786 block.x_offset,
3787 row.as_f32() * line_height - scroll_pixel_position.y,
3788 )
3789 } else {
3790 // Position the block outside the visible area
3791 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
3792 };
3793
3794 if !matches!(block.style, BlockStyle::Sticky) {
3795 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
3796 }
3797
3798 let focus_handle =
3799 block
3800 .element
3801 .prepaint_as_root(origin, block.available_space, window, cx);
3802
3803 if let Some(focus_handle) = focus_handle {
3804 self.editor.update(cx, |editor, _cx| {
3805 editor.set_focused_block(FocusedBlock {
3806 id: block.id,
3807 focus_handle: focus_handle.downgrade(),
3808 });
3809 });
3810 }
3811 }
3812 }
3813
3814 fn layout_sticky_buffer_header(
3815 &self,
3816 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
3817 scroll_position: f32,
3818 line_height: Pixels,
3819 right_margin: Pixels,
3820 snapshot: &EditorSnapshot,
3821 hitbox: &Hitbox,
3822 selected_buffer_ids: &Vec<BufferId>,
3823 blocks: &[BlockLayout],
3824 window: &mut Window,
3825 cx: &mut App,
3826 ) -> AnyElement {
3827 let jump_data = header_jump_data(
3828 snapshot,
3829 DisplayRow(scroll_position as u32),
3830 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3831 excerpt,
3832 );
3833
3834 let editor_bg_color = cx.theme().colors().editor_background;
3835
3836 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3837
3838 let available_width = hitbox.bounds.size.width - right_margin;
3839
3840 let mut header = v_flex()
3841 .relative()
3842 .child(
3843 div()
3844 .w(available_width)
3845 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3846 .bg(linear_gradient(
3847 0.,
3848 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3849 linear_color_stop(editor_bg_color, 0.6),
3850 ))
3851 .absolute()
3852 .top_0(),
3853 )
3854 .child(
3855 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
3856 .into_any_element(),
3857 )
3858 .into_any_element();
3859
3860 let mut origin = hitbox.origin;
3861 // Move floating header up to avoid colliding with the next buffer header.
3862 for block in blocks.iter() {
3863 if !block.is_buffer_header {
3864 continue;
3865 }
3866
3867 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position as u32) else {
3868 continue;
3869 };
3870
3871 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
3872 let offset = scroll_position - max_row as f32;
3873
3874 if offset > 0.0 {
3875 origin.y -= offset * line_height;
3876 }
3877 break;
3878 }
3879
3880 let size = size(
3881 AvailableSpace::Definite(available_width),
3882 AvailableSpace::MinContent,
3883 );
3884
3885 header.prepaint_as_root(origin, size, window, cx);
3886
3887 header
3888 }
3889
3890 fn layout_cursor_popovers(
3891 &self,
3892 line_height: Pixels,
3893 text_hitbox: &Hitbox,
3894 content_origin: gpui::Point<Pixels>,
3895 right_margin: Pixels,
3896 start_row: DisplayRow,
3897 scroll_pixel_position: gpui::Point<Pixels>,
3898 line_layouts: &[LineWithInvisibles],
3899 cursor: DisplayPoint,
3900 cursor_point: Point,
3901 style: &EditorStyle,
3902 window: &mut Window,
3903 cx: &mut App,
3904 ) -> Option<ContextMenuLayout> {
3905 let mut min_menu_height = Pixels::ZERO;
3906 let mut max_menu_height = Pixels::ZERO;
3907 let mut height_above_menu = Pixels::ZERO;
3908 let height_below_menu = Pixels::ZERO;
3909 let mut edit_prediction_popover_visible = false;
3910 let mut context_menu_visible = false;
3911 let context_menu_placement;
3912
3913 {
3914 let editor = self.editor.read(cx);
3915 if editor
3916 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
3917 {
3918 height_above_menu +=
3919 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3920 edit_prediction_popover_visible = true;
3921 }
3922
3923 if editor.context_menu_visible() {
3924 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3925 let (min_height_in_lines, max_height_in_lines) = editor
3926 .context_menu_options
3927 .as_ref()
3928 .map_or((3, 12), |options| {
3929 (options.min_entries_visible, options.max_entries_visible)
3930 });
3931
3932 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
3933 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
3934 context_menu_visible = true;
3935 }
3936 }
3937 context_menu_placement = editor
3938 .context_menu_options
3939 .as_ref()
3940 .and_then(|options| options.placement.clone());
3941 }
3942
3943 let visible = edit_prediction_popover_visible || context_menu_visible;
3944 if !visible {
3945 return None;
3946 }
3947
3948 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3949 let target_position = content_origin
3950 + gpui::Point {
3951 x: cmp::max(
3952 px(0.),
3953 cursor_row_layout.x_for_index(cursor.column() as usize)
3954 - scroll_pixel_position.x,
3955 ),
3956 y: cmp::max(
3957 px(0.),
3958 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3959 ),
3960 };
3961
3962 let viewport_bounds =
3963 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3964 right: -right_margin - MENU_GAP,
3965 ..Default::default()
3966 });
3967
3968 let min_height = height_above_menu + min_menu_height + height_below_menu;
3969 let max_height = height_above_menu + max_menu_height + height_below_menu;
3970 let (laid_out_popovers, y_flipped) = self.layout_popovers_above_or_below_line(
3971 target_position,
3972 line_height,
3973 min_height,
3974 max_height,
3975 context_menu_placement,
3976 text_hitbox,
3977 viewport_bounds,
3978 window,
3979 cx,
3980 |height, max_width_for_stable_x, y_flipped, window, cx| {
3981 // First layout the menu to get its size - others can be at least this wide.
3982 let context_menu = if context_menu_visible {
3983 let menu_height = if y_flipped {
3984 height - height_below_menu
3985 } else {
3986 height - height_above_menu
3987 };
3988 let mut element = self
3989 .render_context_menu(line_height, menu_height, window, cx)
3990 .expect("Visible context menu should always render.");
3991 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3992 Some((CursorPopoverType::CodeContextMenu, element, size))
3993 } else {
3994 None
3995 };
3996 let min_width = context_menu
3997 .as_ref()
3998 .map_or(px(0.), |(_, _, size)| size.width);
3999 let max_width = max_width_for_stable_x.max(
4000 context_menu
4001 .as_ref()
4002 .map_or(px(0.), |(_, _, size)| size.width),
4003 );
4004
4005 let edit_prediction = if edit_prediction_popover_visible {
4006 self.editor.update(cx, move |editor, cx| {
4007 let accept_binding =
4008 editor.accept_edit_prediction_keybind(false, window, cx);
4009 let mut element = editor.render_edit_prediction_cursor_popover(
4010 min_width,
4011 max_width,
4012 cursor_point,
4013 style,
4014 accept_binding.keystroke(),
4015 window,
4016 cx,
4017 )?;
4018 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4019 Some((CursorPopoverType::EditPrediction, element, size))
4020 })
4021 } else {
4022 None
4023 };
4024 vec![edit_prediction, context_menu]
4025 .into_iter()
4026 .flatten()
4027 .collect::<Vec<_>>()
4028 },
4029 )?;
4030
4031 let (menu_ix, (_, menu_bounds)) = laid_out_popovers
4032 .iter()
4033 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))?;
4034 let last_ix = laid_out_popovers.len() - 1;
4035 let menu_is_last = menu_ix == last_ix;
4036 let first_popover_bounds = laid_out_popovers[0].1;
4037 let last_popover_bounds = laid_out_popovers[last_ix].1;
4038
4039 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
4040 // right, and otherwise it goes below or to the right.
4041 let mut target_bounds = Bounds::from_corners(
4042 first_popover_bounds.origin,
4043 last_popover_bounds.bottom_right(),
4044 );
4045 target_bounds.size.width = menu_bounds.size.width;
4046
4047 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
4048 // based on this is preferred for layout stability.
4049 let mut max_target_bounds = target_bounds;
4050 max_target_bounds.size.height = max_height;
4051 if y_flipped {
4052 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
4053 }
4054
4055 // Add spacing around `target_bounds` and `max_target_bounds`.
4056 let mut extend_amount = Edges::all(MENU_GAP);
4057 if y_flipped {
4058 extend_amount.bottom = line_height;
4059 } else {
4060 extend_amount.top = line_height;
4061 }
4062 let target_bounds = target_bounds.extend(extend_amount);
4063 let max_target_bounds = max_target_bounds.extend(extend_amount);
4064
4065 let must_place_above_or_below =
4066 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
4067 laid_out_popovers[menu_ix + 1..]
4068 .iter()
4069 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
4070 } else {
4071 false
4072 };
4073
4074 let aside_bounds = self.layout_context_menu_aside(
4075 y_flipped,
4076 *menu_bounds,
4077 target_bounds,
4078 max_target_bounds,
4079 max_menu_height,
4080 must_place_above_or_below,
4081 text_hitbox,
4082 viewport_bounds,
4083 window,
4084 cx,
4085 );
4086
4087 if let Some(menu_bounds) = laid_out_popovers.iter().find_map(|(popover_type, bounds)| {
4088 if matches!(popover_type, CursorPopoverType::CodeContextMenu) {
4089 Some(*bounds)
4090 } else {
4091 None
4092 }
4093 }) {
4094 let bounds = if let Some(aside_bounds) = aside_bounds {
4095 menu_bounds.union(&aside_bounds)
4096 } else {
4097 menu_bounds
4098 };
4099 return Some(ContextMenuLayout { y_flipped, bounds });
4100 }
4101
4102 None
4103 }
4104
4105 fn layout_gutter_menu(
4106 &self,
4107 line_height: Pixels,
4108 text_hitbox: &Hitbox,
4109 content_origin: gpui::Point<Pixels>,
4110 right_margin: Pixels,
4111 scroll_pixel_position: gpui::Point<Pixels>,
4112 gutter_overshoot: Pixels,
4113 window: &mut Window,
4114 cx: &mut App,
4115 ) {
4116 let editor = self.editor.read(cx);
4117 if !editor.context_menu_visible() {
4118 return;
4119 }
4120 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
4121 editor.context_menu_origin()
4122 else {
4123 return;
4124 };
4125 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
4126 // indicator than just a plain first column of the text field.
4127 let target_position = content_origin
4128 + gpui::Point {
4129 x: -gutter_overshoot,
4130 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
4131 };
4132
4133 let (min_height_in_lines, max_height_in_lines) = editor
4134 .context_menu_options
4135 .as_ref()
4136 .map_or((3, 12), |options| {
4137 (options.min_entries_visible, options.max_entries_visible)
4138 });
4139
4140 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4141 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4142 let viewport_bounds =
4143 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4144 right: -right_margin - MENU_GAP,
4145 ..Default::default()
4146 });
4147 self.layout_popovers_above_or_below_line(
4148 target_position,
4149 line_height,
4150 min_height,
4151 max_height,
4152 editor
4153 .context_menu_options
4154 .as_ref()
4155 .and_then(|options| options.placement.clone()),
4156 text_hitbox,
4157 viewport_bounds,
4158 window,
4159 cx,
4160 move |height, _max_width_for_stable_x, _, window, cx| {
4161 let mut element = self
4162 .render_context_menu(line_height, height, window, cx)
4163 .expect("Visible context menu should always render.");
4164 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4165 vec![(CursorPopoverType::CodeContextMenu, element, size)]
4166 },
4167 );
4168 }
4169
4170 fn layout_popovers_above_or_below_line(
4171 &self,
4172 target_position: gpui::Point<Pixels>,
4173 line_height: Pixels,
4174 min_height: Pixels,
4175 max_height: Pixels,
4176 placement: Option<ContextMenuPlacement>,
4177 text_hitbox: &Hitbox,
4178 viewport_bounds: Bounds<Pixels>,
4179 window: &mut Window,
4180 cx: &mut App,
4181 make_sized_popovers: impl FnOnce(
4182 Pixels,
4183 Pixels,
4184 bool,
4185 &mut Window,
4186 &mut App,
4187 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
4188 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
4189 let text_style = TextStyleRefinement {
4190 line_height: Some(DefiniteLength::Fraction(
4191 BufferLineHeight::Comfortable.value(),
4192 )),
4193 ..Default::default()
4194 };
4195 window.with_text_style(Some(text_style), |window| {
4196 // If the max height won't fit below and there is more space above, put it above the line.
4197 let bottom_y_when_flipped = target_position.y - line_height;
4198 let available_above = bottom_y_when_flipped - text_hitbox.top();
4199 let available_below = text_hitbox.bottom() - target_position.y;
4200 let y_overflows_below = max_height > available_below;
4201 let mut y_flipped = match placement {
4202 Some(ContextMenuPlacement::Above) => true,
4203 Some(ContextMenuPlacement::Below) => false,
4204 None => y_overflows_below && available_above > available_below,
4205 };
4206 let mut height = cmp::min(
4207 max_height,
4208 if y_flipped {
4209 available_above
4210 } else {
4211 available_below
4212 },
4213 );
4214
4215 // If the min height doesn't fit within text bounds, instead fit within the window.
4216 if height < min_height {
4217 let available_above = bottom_y_when_flipped;
4218 let available_below = viewport_bounds.bottom() - target_position.y;
4219 let (y_flipped_override, height_override) = match placement {
4220 Some(ContextMenuPlacement::Above) => {
4221 (true, cmp::min(available_above, min_height))
4222 }
4223 Some(ContextMenuPlacement::Below) => {
4224 (false, cmp::min(available_below, min_height))
4225 }
4226 None => {
4227 if available_below > min_height {
4228 (false, min_height)
4229 } else if available_above > min_height {
4230 (true, min_height)
4231 } else if available_above > available_below {
4232 (true, available_above)
4233 } else {
4234 (false, available_below)
4235 }
4236 }
4237 };
4238 y_flipped = y_flipped_override;
4239 height = height_override;
4240 }
4241
4242 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
4243
4244 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
4245 // for very narrow windows.
4246 let popovers =
4247 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
4248 if popovers.is_empty() {
4249 return None;
4250 }
4251
4252 let max_width = popovers
4253 .iter()
4254 .map(|(_, _, size)| size.width)
4255 .max()
4256 .unwrap_or_default();
4257
4258 let mut current_position = gpui::Point {
4259 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
4260 // overflow. Include space for the scrollbar.
4261 x: target_position
4262 .x
4263 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
4264 y: if y_flipped {
4265 bottom_y_when_flipped
4266 } else {
4267 target_position.y
4268 },
4269 };
4270
4271 let mut laid_out_popovers = popovers
4272 .into_iter()
4273 .map(|(popover_type, element, size)| {
4274 if y_flipped {
4275 current_position.y -= size.height;
4276 }
4277 let position = current_position;
4278 window.defer_draw(element, current_position, 1);
4279 if !y_flipped {
4280 current_position.y += size.height + MENU_GAP;
4281 } else {
4282 current_position.y -= MENU_GAP;
4283 }
4284 (popover_type, Bounds::new(position, size))
4285 })
4286 .collect::<Vec<_>>();
4287
4288 if y_flipped {
4289 laid_out_popovers.reverse();
4290 }
4291
4292 Some((laid_out_popovers, y_flipped))
4293 })
4294 }
4295
4296 fn layout_context_menu_aside(
4297 &self,
4298 y_flipped: bool,
4299 menu_bounds: Bounds<Pixels>,
4300 target_bounds: Bounds<Pixels>,
4301 max_target_bounds: Bounds<Pixels>,
4302 max_height: Pixels,
4303 must_place_above_or_below: bool,
4304 text_hitbox: &Hitbox,
4305 viewport_bounds: Bounds<Pixels>,
4306 window: &mut Window,
4307 cx: &mut App,
4308 ) -> Option<Bounds<Pixels>> {
4309 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
4310 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
4311 && !must_place_above_or_below
4312 {
4313 let max_width = cmp::min(
4314 available_within_viewport.right - px(1.),
4315 MENU_ASIDE_MAX_WIDTH,
4316 );
4317 let mut aside = self.render_context_menu_aside(
4318 size(max_width, max_height - POPOVER_Y_PADDING),
4319 window,
4320 cx,
4321 )?;
4322 let size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
4323 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
4324 Some((aside, right_position, size))
4325 } else {
4326 let max_size = size(
4327 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
4328 // won't be needed here.
4329 cmp::min(
4330 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
4331 viewport_bounds.right(),
4332 ),
4333 cmp::min(
4334 max_height,
4335 cmp::max(
4336 available_within_viewport.top,
4337 available_within_viewport.bottom,
4338 ),
4339 ) - POPOVER_Y_PADDING,
4340 );
4341 let mut aside = self.render_context_menu_aside(max_size, window, cx)?;
4342 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
4343
4344 let top_position = point(
4345 menu_bounds.origin.x,
4346 target_bounds.top() - actual_size.height,
4347 );
4348 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
4349
4350 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
4351 // Prefer to fit on the same side of the line as the menu, then on the other side of
4352 // the line.
4353 if !y_flipped && wanted.height < available.bottom {
4354 Some(bottom_position)
4355 } else if !y_flipped && wanted.height < available.top {
4356 Some(top_position)
4357 } else if y_flipped && wanted.height < available.top {
4358 Some(top_position)
4359 } else if y_flipped && wanted.height < available.bottom {
4360 Some(bottom_position)
4361 } else {
4362 None
4363 }
4364 };
4365
4366 // Prefer choosing a direction using max sizes rather than actual size for stability.
4367 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
4368 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
4369 let aside_position = fit_within(available_within_text, wanted)
4370 // Fallback: fit max size in window.
4371 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
4372 // Fallback: fit actual size in window.
4373 .or_else(|| fit_within(available_within_viewport, actual_size));
4374
4375 aside_position.map(|position| (aside, position, actual_size))
4376 };
4377
4378 // Skip drawing if it doesn't fit anywhere.
4379 if let Some((aside, position, size)) = positioned_aside {
4380 let aside_bounds = Bounds::new(position, size);
4381 window.defer_draw(aside, position, 2);
4382 return Some(aside_bounds);
4383 }
4384
4385 None
4386 }
4387
4388 fn render_context_menu(
4389 &self,
4390 line_height: Pixels,
4391 height: Pixels,
4392 window: &mut Window,
4393 cx: &mut App,
4394 ) -> Option<AnyElement> {
4395 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
4396 self.editor.update(cx, |editor, cx| {
4397 editor.render_context_menu(&self.style, max_height_in_lines, window, cx)
4398 })
4399 }
4400
4401 fn render_context_menu_aside(
4402 &self,
4403 max_size: Size<Pixels>,
4404 window: &mut Window,
4405 cx: &mut App,
4406 ) -> Option<AnyElement> {
4407 if max_size.width < px(100.) || max_size.height < px(12.) {
4408 None
4409 } else {
4410 self.editor.update(cx, |editor, cx| {
4411 editor.render_context_menu_aside(max_size, window, cx)
4412 })
4413 }
4414 }
4415
4416 fn layout_mouse_context_menu(
4417 &self,
4418 editor_snapshot: &EditorSnapshot,
4419 visible_range: Range<DisplayRow>,
4420 content_origin: gpui::Point<Pixels>,
4421 window: &mut Window,
4422 cx: &mut App,
4423 ) -> Option<AnyElement> {
4424 let position = self.editor.update(cx, |editor, _cx| {
4425 let visible_start_point = editor.display_to_pixel_point(
4426 DisplayPoint::new(visible_range.start, 0),
4427 editor_snapshot,
4428 window,
4429 )?;
4430 let visible_end_point = editor.display_to_pixel_point(
4431 DisplayPoint::new(visible_range.end, 0),
4432 editor_snapshot,
4433 window,
4434 )?;
4435
4436 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
4437 let (source_display_point, position) = match mouse_context_menu.position {
4438 MenuPosition::PinnedToScreen(point) => (None, point),
4439 MenuPosition::PinnedToEditor { source, offset } => {
4440 let source_display_point = source.to_display_point(editor_snapshot);
4441 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
4442 let position = content_origin + source_point + offset;
4443 (Some(source_display_point), position)
4444 }
4445 };
4446
4447 let source_included = source_display_point.map_or(true, |source_display_point| {
4448 visible_range
4449 .to_inclusive()
4450 .contains(&source_display_point.row())
4451 });
4452 let position_included =
4453 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
4454 if !source_included && !position_included {
4455 None
4456 } else {
4457 Some(position)
4458 }
4459 })?;
4460
4461 let text_style = TextStyleRefinement {
4462 line_height: Some(DefiniteLength::Fraction(
4463 BufferLineHeight::Comfortable.value(),
4464 )),
4465 ..Default::default()
4466 };
4467 window.with_text_style(Some(text_style), |window| {
4468 let mut element = self.editor.read_with(cx, |editor, _| {
4469 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
4470 let context_menu = mouse_context_menu.context_menu.clone();
4471
4472 Some(
4473 deferred(
4474 anchored()
4475 .position(position)
4476 .child(context_menu)
4477 .anchor(Corner::TopLeft)
4478 .snap_to_window_with_margin(px(8.)),
4479 )
4480 .with_priority(1)
4481 .into_any(),
4482 )
4483 })?;
4484
4485 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
4486 Some(element)
4487 })
4488 }
4489
4490 fn layout_hover_popovers(
4491 &self,
4492 snapshot: &EditorSnapshot,
4493 hitbox: &Hitbox,
4494 visible_display_row_range: Range<DisplayRow>,
4495 content_origin: gpui::Point<Pixels>,
4496 scroll_pixel_position: gpui::Point<Pixels>,
4497 line_layouts: &[LineWithInvisibles],
4498 line_height: Pixels,
4499 em_width: Pixels,
4500 context_menu_layout: Option<ContextMenuLayout>,
4501 window: &mut Window,
4502 cx: &mut App,
4503 ) {
4504 struct MeasuredHoverPopover {
4505 element: AnyElement,
4506 size: Size<Pixels>,
4507 horizontal_offset: Pixels,
4508 }
4509
4510 let max_size = size(
4511 (120. * em_width) // Default size
4512 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4513 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4514 (16. * line_height) // Default size
4515 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4516 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4517 );
4518
4519 let hover_popovers = self.editor.update(cx, |editor, cx| {
4520 editor.hover_state.render(
4521 snapshot,
4522 visible_display_row_range.clone(),
4523 max_size,
4524 window,
4525 cx,
4526 )
4527 });
4528 let Some((position, hover_popovers)) = hover_popovers else {
4529 return;
4530 };
4531
4532 // This is safe because we check on layout whether the required row is available
4533 let hovered_row_layout =
4534 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
4535
4536 // Compute Hovered Point
4537 let x =
4538 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
4539 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
4540 let hovered_point = content_origin + point(x, y);
4541
4542 let mut overall_height = Pixels::ZERO;
4543 let mut measured_hover_popovers = Vec::new();
4544 for (position, mut hover_popover) in hover_popovers.into_iter().with_position() {
4545 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
4546 let horizontal_offset =
4547 (hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
4548 .min(Pixels::ZERO);
4549 match position {
4550 itertools::Position::Middle | itertools::Position::Last => {
4551 overall_height += HOVER_POPOVER_GAP
4552 }
4553 _ => {}
4554 }
4555 overall_height += size.height;
4556 measured_hover_popovers.push(MeasuredHoverPopover {
4557 element: hover_popover,
4558 size,
4559 horizontal_offset,
4560 });
4561 }
4562
4563 fn draw_occluder(
4564 width: Pixels,
4565 origin: gpui::Point<Pixels>,
4566 window: &mut Window,
4567 cx: &mut App,
4568 ) {
4569 let mut occlusion = div()
4570 .size_full()
4571 .occlude()
4572 .on_mouse_move(|_, _, cx| cx.stop_propagation())
4573 .into_any_element();
4574 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
4575 window.defer_draw(occlusion, origin, 2);
4576 }
4577
4578 fn place_popovers_above(
4579 hovered_point: gpui::Point<Pixels>,
4580 measured_hover_popovers: Vec<MeasuredHoverPopover>,
4581 window: &mut Window,
4582 cx: &mut App,
4583 ) {
4584 let mut current_y = hovered_point.y;
4585 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4586 let size = popover.size;
4587 let popover_origin = point(
4588 hovered_point.x + popover.horizontal_offset,
4589 current_y - size.height,
4590 );
4591
4592 window.defer_draw(popover.element, popover_origin, 2);
4593 if position != itertools::Position::Last {
4594 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
4595 draw_occluder(size.width, origin, window, cx);
4596 }
4597
4598 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4599 }
4600 }
4601
4602 fn place_popovers_below(
4603 hovered_point: gpui::Point<Pixels>,
4604 measured_hover_popovers: Vec<MeasuredHoverPopover>,
4605 line_height: Pixels,
4606 window: &mut Window,
4607 cx: &mut App,
4608 ) {
4609 let mut current_y = hovered_point.y + line_height;
4610 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4611 let size = popover.size;
4612 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4613
4614 window.defer_draw(popover.element, popover_origin, 2);
4615 if position != itertools::Position::Last {
4616 let origin = point(popover_origin.x, popover_origin.y + size.height);
4617 draw_occluder(size.width, origin, window, cx);
4618 }
4619
4620 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4621 }
4622 }
4623
4624 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
4625 context_menu_layout
4626 .as_ref()
4627 .map_or(false, |menu| bounds.intersects(&menu.bounds))
4628 };
4629
4630 let can_place_above = {
4631 let mut bounds_above = Vec::new();
4632 let mut current_y = hovered_point.y;
4633 for popover in &measured_hover_popovers {
4634 let size = popover.size;
4635 let popover_origin = point(
4636 hovered_point.x + popover.horizontal_offset,
4637 current_y - size.height,
4638 );
4639 bounds_above.push(Bounds::new(popover_origin, size));
4640 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4641 }
4642 bounds_above
4643 .iter()
4644 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
4645 };
4646
4647 let can_place_below = || {
4648 let mut bounds_below = Vec::new();
4649 let mut current_y = hovered_point.y + line_height;
4650 for popover in &measured_hover_popovers {
4651 let size = popover.size;
4652 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4653 bounds_below.push(Bounds::new(popover_origin, size));
4654 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4655 }
4656 bounds_below
4657 .iter()
4658 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
4659 };
4660
4661 if can_place_above {
4662 // try placing above hovered point
4663 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
4664 } else if can_place_below() {
4665 // try placing below hovered point
4666 place_popovers_below(
4667 hovered_point,
4668 measured_hover_popovers,
4669 line_height,
4670 window,
4671 cx,
4672 );
4673 } else {
4674 // try to place popovers around the context menu
4675 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
4676 let total_width = measured_hover_popovers
4677 .iter()
4678 .map(|p| p.size.width)
4679 .max()
4680 .unwrap_or(Pixels::ZERO);
4681 let y_for_horizontal_positioning = if menu.y_flipped {
4682 menu.bounds.bottom() - overall_height
4683 } else {
4684 menu.bounds.top()
4685 };
4686 let possible_origins = vec![
4687 // left of context menu
4688 point(
4689 menu.bounds.left() - total_width - HOVER_POPOVER_GAP,
4690 y_for_horizontal_positioning,
4691 ),
4692 // right of context menu
4693 point(
4694 menu.bounds.right() + HOVER_POPOVER_GAP,
4695 y_for_horizontal_positioning,
4696 ),
4697 // top of context menu
4698 point(
4699 menu.bounds.left(),
4700 menu.bounds.top() - overall_height - HOVER_POPOVER_GAP,
4701 ),
4702 // bottom of context menu
4703 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
4704 ];
4705 possible_origins.into_iter().find(|&origin| {
4706 Bounds::new(origin, size(total_width, overall_height))
4707 .is_contained_within(hitbox)
4708 })
4709 });
4710 if let Some(origin) = origin_surrounding_menu {
4711 let mut current_y = origin.y;
4712 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4713 let size = popover.size;
4714 let popover_origin = point(origin.x, current_y);
4715
4716 window.defer_draw(popover.element, popover_origin, 2);
4717 if position != itertools::Position::Last {
4718 let origin = point(popover_origin.x, popover_origin.y + size.height);
4719 draw_occluder(size.width, origin, window, cx);
4720 }
4721
4722 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4723 }
4724 } else {
4725 // fallback to existing above/below cursor logic
4726 // this might overlap menu or overflow in rare case
4727 if can_place_above {
4728 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
4729 } else {
4730 place_popovers_below(
4731 hovered_point,
4732 measured_hover_popovers,
4733 line_height,
4734 window,
4735 cx,
4736 );
4737 }
4738 }
4739 }
4740 }
4741
4742 fn layout_diff_hunk_controls(
4743 &self,
4744 row_range: Range<DisplayRow>,
4745 row_infos: &[RowInfo],
4746 text_hitbox: &Hitbox,
4747 position_map: &PositionMap,
4748 newest_cursor_position: Option<DisplayPoint>,
4749 line_height: Pixels,
4750 right_margin: Pixels,
4751 scroll_pixel_position: gpui::Point<Pixels>,
4752 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
4753 highlighted_rows: &BTreeMap<DisplayRow, LineHighlight>,
4754 editor: Entity<Editor>,
4755 window: &mut Window,
4756 cx: &mut App,
4757 ) -> Vec<AnyElement> {
4758 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
4759 let point_for_position = position_map.point_for_position(window.mouse_position());
4760
4761 let mut controls = vec![];
4762
4763 let active_positions = [
4764 Some(point_for_position.previous_valid),
4765 newest_cursor_position,
4766 ];
4767
4768 for (hunk, _) in display_hunks {
4769 if let DisplayDiffHunk::Unfolded {
4770 display_row_range,
4771 multi_buffer_range,
4772 status,
4773 is_created_file,
4774 ..
4775 } = &hunk
4776 {
4777 if display_row_range.start < row_range.start
4778 || display_row_range.start >= row_range.end
4779 {
4780 continue;
4781 }
4782 if highlighted_rows
4783 .get(&display_row_range.start)
4784 .and_then(|highlight| highlight.type_id)
4785 .is_some_and(|type_id| {
4786 [
4787 TypeId::of::<ConflictsOuter>(),
4788 TypeId::of::<ConflictsOursMarker>(),
4789 TypeId::of::<ConflictsOurs>(),
4790 TypeId::of::<ConflictsTheirs>(),
4791 TypeId::of::<ConflictsTheirsMarker>(),
4792 ]
4793 .contains(&type_id)
4794 })
4795 {
4796 continue;
4797 }
4798 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4799 if row_infos[row_ix].diff_status.is_none() {
4800 continue;
4801 }
4802 if row_infos[row_ix]
4803 .diff_status
4804 .is_some_and(|status| status.is_added())
4805 && !status.is_added()
4806 {
4807 continue;
4808 }
4809 if active_positions
4810 .iter()
4811 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4812 {
4813 let y = display_row_range.start.as_f32() * line_height
4814 + text_hitbox.bounds.top()
4815 - scroll_pixel_position.y;
4816
4817 let mut element = render_diff_hunk_controls(
4818 display_row_range.start.0,
4819 status,
4820 multi_buffer_range.clone(),
4821 *is_created_file,
4822 line_height,
4823 &editor,
4824 window,
4825 cx,
4826 );
4827 let size =
4828 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
4829
4830 let x = text_hitbox.bounds.right() - right_margin - px(10.) - size.width;
4831
4832 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
4833 element.prepaint(window, cx)
4834 });
4835 controls.push(element);
4836 }
4837 }
4838 }
4839
4840 controls
4841 }
4842
4843 fn layout_signature_help(
4844 &self,
4845 hitbox: &Hitbox,
4846 content_origin: gpui::Point<Pixels>,
4847 scroll_pixel_position: gpui::Point<Pixels>,
4848 newest_selection_head: Option<DisplayPoint>,
4849 start_row: DisplayRow,
4850 line_layouts: &[LineWithInvisibles],
4851 line_height: Pixels,
4852 em_width: Pixels,
4853 context_menu_layout: Option<ContextMenuLayout>,
4854 window: &mut Window,
4855 cx: &mut App,
4856 ) {
4857 if !self.editor.focus_handle(cx).is_focused(window) {
4858 return;
4859 }
4860 let Some(newest_selection_head) = newest_selection_head else {
4861 return;
4862 };
4863
4864 let max_size = size(
4865 (120. * em_width) // Default size
4866 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4867 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4868 (16. * line_height) // Default size
4869 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4870 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4871 );
4872
4873 let maybe_element = self.editor.update(cx, |editor, cx| {
4874 if let Some(popover) = editor.signature_help_state.popover_mut() {
4875 let element = popover.render(max_size, cx);
4876 Some(element)
4877 } else {
4878 None
4879 }
4880 });
4881 let Some(mut element) = maybe_element else {
4882 return;
4883 };
4884
4885 let selection_row = newest_selection_head.row();
4886 let Some(cursor_row_layout) = (selection_row >= start_row)
4887 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
4888 .flatten()
4889 else {
4890 return;
4891 };
4892
4893 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4894 - scroll_pixel_position.x;
4895 let target_y = selection_row.as_f32() * line_height - scroll_pixel_position.y;
4896 let target_point = content_origin + point(target_x, target_y);
4897
4898 let actual_size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4899
4900 let (popover_bounds_above, popover_bounds_below) = {
4901 let horizontal_offset = (hitbox.top_right().x
4902 - POPOVER_RIGHT_OFFSET
4903 - (target_point.x + actual_size.width))
4904 .min(Pixels::ZERO);
4905 let initial_x = target_point.x + horizontal_offset;
4906 (
4907 Bounds::new(
4908 point(initial_x, target_point.y - actual_size.height),
4909 actual_size,
4910 ),
4911 Bounds::new(
4912 point(initial_x, target_point.y + line_height + HOVER_POPOVER_GAP),
4913 actual_size,
4914 ),
4915 )
4916 };
4917
4918 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
4919 context_menu_layout
4920 .as_ref()
4921 .map_or(false, |menu| bounds.intersects(&menu.bounds))
4922 };
4923
4924 let final_origin = if popover_bounds_above.is_contained_within(hitbox)
4925 && !intersects_menu(popover_bounds_above)
4926 {
4927 // try placing above cursor
4928 popover_bounds_above.origin
4929 } else if popover_bounds_below.is_contained_within(hitbox)
4930 && !intersects_menu(popover_bounds_below)
4931 {
4932 // try placing below cursor
4933 popover_bounds_below.origin
4934 } else {
4935 // try surrounding context menu if exists
4936 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
4937 let y_for_horizontal_positioning = if menu.y_flipped {
4938 menu.bounds.bottom() - actual_size.height
4939 } else {
4940 menu.bounds.top()
4941 };
4942 let possible_origins = vec![
4943 // left of context menu
4944 point(
4945 menu.bounds.left() - actual_size.width - HOVER_POPOVER_GAP,
4946 y_for_horizontal_positioning,
4947 ),
4948 // right of context menu
4949 point(
4950 menu.bounds.right() + HOVER_POPOVER_GAP,
4951 y_for_horizontal_positioning,
4952 ),
4953 // top of context menu
4954 point(
4955 menu.bounds.left(),
4956 menu.bounds.top() - actual_size.height - HOVER_POPOVER_GAP,
4957 ),
4958 // bottom of context menu
4959 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
4960 ];
4961 possible_origins
4962 .into_iter()
4963 .find(|&origin| Bounds::new(origin, actual_size).is_contained_within(hitbox))
4964 });
4965 origin_surrounding_menu.unwrap_or_else(|| {
4966 // fallback to existing above/below cursor logic
4967 // this might overlap menu or overflow in rare case
4968 if popover_bounds_above.is_contained_within(hitbox) {
4969 popover_bounds_above.origin
4970 } else {
4971 popover_bounds_below.origin
4972 }
4973 })
4974 };
4975
4976 window.defer_draw(element, final_origin, 2);
4977 }
4978
4979 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4980 window.paint_layer(layout.hitbox.bounds, |window| {
4981 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4982 let gutter_bg = cx.theme().colors().editor_gutter_background;
4983 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4984 window.paint_quad(fill(
4985 layout.position_map.text_hitbox.bounds,
4986 self.style.background,
4987 ));
4988
4989 if matches!(
4990 layout.mode,
4991 EditorMode::Full { .. } | EditorMode::Minimap { .. }
4992 ) {
4993 let show_active_line_background = match layout.mode {
4994 EditorMode::Full {
4995 show_active_line_background,
4996 ..
4997 } => show_active_line_background,
4998 EditorMode::Minimap { .. } => true,
4999 _ => false,
5000 };
5001 let mut active_rows = layout.active_rows.iter().peekable();
5002 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
5003 let mut end_row = start_row.0;
5004 while active_rows
5005 .peek()
5006 .map_or(false, |(active_row, has_selection)| {
5007 active_row.0 == end_row + 1
5008 && has_selection.selection == contains_non_empty_selection.selection
5009 })
5010 {
5011 active_rows.next().unwrap();
5012 end_row += 1;
5013 }
5014
5015 if show_active_line_background && !contains_non_empty_selection.selection {
5016 let highlight_h_range =
5017 match layout.position_map.snapshot.current_line_highlight {
5018 CurrentLineHighlight::Gutter => Some(Range {
5019 start: layout.hitbox.left(),
5020 end: layout.gutter_hitbox.right(),
5021 }),
5022 CurrentLineHighlight::Line => Some(Range {
5023 start: layout.position_map.text_hitbox.bounds.left(),
5024 end: layout.position_map.text_hitbox.bounds.right(),
5025 }),
5026 CurrentLineHighlight::All => Some(Range {
5027 start: layout.hitbox.left(),
5028 end: layout.hitbox.right(),
5029 }),
5030 CurrentLineHighlight::None => None,
5031 };
5032 if let Some(range) = highlight_h_range {
5033 let active_line_bg = cx.theme().colors().editor_active_line_background;
5034 let bounds = Bounds {
5035 origin: point(
5036 range.start,
5037 layout.hitbox.origin.y
5038 + (start_row.as_f32() - scroll_top)
5039 * layout.position_map.line_height,
5040 ),
5041 size: size(
5042 range.end - range.start,
5043 layout.position_map.line_height
5044 * (end_row - start_row.0 + 1) as f32,
5045 ),
5046 };
5047 window.paint_quad(fill(bounds, active_line_bg));
5048 }
5049 }
5050 }
5051
5052 let mut paint_highlight = |highlight_row_start: DisplayRow,
5053 highlight_row_end: DisplayRow,
5054 highlight: crate::LineHighlight,
5055 edges| {
5056 let mut origin_x = layout.hitbox.left();
5057 let mut width = layout.hitbox.size.width;
5058 if !highlight.include_gutter {
5059 origin_x += layout.gutter_hitbox.size.width;
5060 width -= layout.gutter_hitbox.size.width;
5061 }
5062
5063 let origin = point(
5064 origin_x,
5065 layout.hitbox.origin.y
5066 + (highlight_row_start.as_f32() - scroll_top)
5067 * layout.position_map.line_height,
5068 );
5069 let size = size(
5070 width,
5071 layout.position_map.line_height
5072 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
5073 );
5074 let mut quad = fill(Bounds { origin, size }, highlight.background);
5075 if let Some(border_color) = highlight.border {
5076 quad.border_color = border_color;
5077 quad.border_widths = edges
5078 }
5079 window.paint_quad(quad);
5080 };
5081
5082 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
5083 None;
5084 for (&new_row, &new_background) in &layout.highlighted_rows {
5085 match &mut current_paint {
5086 &mut Some((current_background, ref mut current_range, mut edges)) => {
5087 let new_range_started = current_background != new_background
5088 || current_range.end.next_row() != new_row;
5089 if new_range_started {
5090 if current_range.end.next_row() == new_row {
5091 edges.bottom = px(0.);
5092 };
5093 paint_highlight(
5094 current_range.start,
5095 current_range.end,
5096 current_background,
5097 edges,
5098 );
5099 let edges = Edges {
5100 top: if current_range.end.next_row() != new_row {
5101 px(1.)
5102 } else {
5103 px(0.)
5104 },
5105 bottom: px(1.),
5106 ..Default::default()
5107 };
5108 current_paint = Some((new_background, new_row..new_row, edges));
5109 continue;
5110 } else {
5111 current_range.end = current_range.end.next_row();
5112 }
5113 }
5114 None => {
5115 let edges = Edges {
5116 top: px(1.),
5117 bottom: px(1.),
5118 ..Default::default()
5119 };
5120 current_paint = Some((new_background, new_row..new_row, edges))
5121 }
5122 };
5123 }
5124 if let Some((color, range, edges)) = current_paint {
5125 paint_highlight(range.start, range.end, color, edges);
5126 }
5127
5128 let scroll_left =
5129 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
5130
5131 for (wrap_position, active) in layout.wrap_guides.iter() {
5132 let x = (layout.position_map.text_hitbox.origin.x
5133 + *wrap_position
5134 + layout.position_map.em_width / 2.)
5135 - scroll_left;
5136
5137 let show_scrollbars = layout
5138 .scrollbars_layout
5139 .as_ref()
5140 .map_or(false, |layout| layout.visible);
5141
5142 if x < layout.position_map.text_hitbox.origin.x
5143 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
5144 {
5145 continue;
5146 }
5147
5148 let color = if *active {
5149 cx.theme().colors().editor_active_wrap_guide
5150 } else {
5151 cx.theme().colors().editor_wrap_guide
5152 };
5153 window.paint_quad(fill(
5154 Bounds {
5155 origin: point(x, layout.position_map.text_hitbox.origin.y),
5156 size: size(px(1.), layout.position_map.text_hitbox.size.height),
5157 },
5158 color,
5159 ));
5160 }
5161 }
5162 })
5163 }
5164
5165 fn paint_indent_guides(
5166 &mut self,
5167 layout: &mut EditorLayout,
5168 window: &mut Window,
5169 cx: &mut App,
5170 ) {
5171 let Some(indent_guides) = &layout.indent_guides else {
5172 return;
5173 };
5174
5175 let faded_color = |color: Hsla, alpha: f32| {
5176 let mut faded = color;
5177 faded.a = alpha;
5178 faded
5179 };
5180
5181 for indent_guide in indent_guides {
5182 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
5183 let settings = indent_guide.settings;
5184
5185 // TODO fixed for now, expose them through themes later
5186 const INDENT_AWARE_ALPHA: f32 = 0.2;
5187 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
5188 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
5189 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
5190
5191 let line_color = match (settings.coloring, indent_guide.active) {
5192 (IndentGuideColoring::Disabled, _) => None,
5193 (IndentGuideColoring::Fixed, false) => {
5194 Some(cx.theme().colors().editor_indent_guide)
5195 }
5196 (IndentGuideColoring::Fixed, true) => {
5197 Some(cx.theme().colors().editor_indent_guide_active)
5198 }
5199 (IndentGuideColoring::IndentAware, false) => {
5200 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
5201 }
5202 (IndentGuideColoring::IndentAware, true) => {
5203 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
5204 }
5205 };
5206
5207 let background_color = match (settings.background_coloring, indent_guide.active) {
5208 (IndentGuideBackgroundColoring::Disabled, _) => None,
5209 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
5210 indent_accent_colors,
5211 INDENT_AWARE_BACKGROUND_ALPHA,
5212 )),
5213 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
5214 indent_accent_colors,
5215 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
5216 )),
5217 };
5218
5219 let requested_line_width = if indent_guide.active {
5220 settings.active_line_width
5221 } else {
5222 settings.line_width
5223 }
5224 .clamp(1, 10);
5225 let mut line_indicator_width = 0.;
5226 if let Some(color) = line_color {
5227 window.paint_quad(fill(
5228 Bounds {
5229 origin: indent_guide.origin,
5230 size: size(px(requested_line_width as f32), indent_guide.length),
5231 },
5232 color,
5233 ));
5234 line_indicator_width = requested_line_width as f32;
5235 }
5236
5237 if let Some(color) = background_color {
5238 let width = indent_guide.single_indent_width - px(line_indicator_width);
5239 window.paint_quad(fill(
5240 Bounds {
5241 origin: point(
5242 indent_guide.origin.x + px(line_indicator_width),
5243 indent_guide.origin.y,
5244 ),
5245 size: size(width, indent_guide.length),
5246 },
5247 color,
5248 ));
5249 }
5250 }
5251 }
5252
5253 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5254 let is_singleton = self.editor.read(cx).is_singleton(cx);
5255
5256 let line_height = layout.position_map.line_height;
5257 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
5258
5259 for LineNumberLayout {
5260 shaped_line,
5261 hitbox,
5262 } in layout.line_numbers.values()
5263 {
5264 let Some(hitbox) = hitbox else {
5265 continue;
5266 };
5267
5268 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
5269 let color = cx.theme().colors().editor_hover_line_number;
5270
5271 let line = self.shape_line_number(shaped_line.text.clone(), color, window);
5272 line.paint(hitbox.origin, line_height, window, cx).log_err()
5273 } else {
5274 shaped_line
5275 .paint(hitbox.origin, line_height, window, cx)
5276 .log_err()
5277 }) else {
5278 continue;
5279 };
5280
5281 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
5282 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
5283 if is_singleton {
5284 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
5285 } else {
5286 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
5287 }
5288 }
5289 }
5290
5291 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5292 if layout.display_hunks.is_empty() {
5293 return;
5294 }
5295
5296 let line_height = layout.position_map.line_height;
5297 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5298 for (hunk, hitbox) in &layout.display_hunks {
5299 let hunk_to_paint = match hunk {
5300 DisplayDiffHunk::Folded { .. } => {
5301 let hunk_bounds = Self::diff_hunk_bounds(
5302 &layout.position_map.snapshot,
5303 line_height,
5304 layout.gutter_hitbox.bounds,
5305 &hunk,
5306 );
5307 Some((
5308 hunk_bounds,
5309 cx.theme().colors().version_control_modified,
5310 Corners::all(px(0.)),
5311 DiffHunkStatus::modified_none(),
5312 ))
5313 }
5314 DisplayDiffHunk::Unfolded {
5315 status,
5316 display_row_range,
5317 ..
5318 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
5319 DiffHunkStatusKind::Added => (
5320 hunk_hitbox.bounds,
5321 cx.theme().colors().version_control_added,
5322 Corners::all(px(0.)),
5323 *status,
5324 ),
5325 DiffHunkStatusKind::Modified => (
5326 hunk_hitbox.bounds,
5327 cx.theme().colors().version_control_modified,
5328 Corners::all(px(0.)),
5329 *status,
5330 ),
5331 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
5332 hunk_hitbox.bounds,
5333 cx.theme().colors().version_control_deleted,
5334 Corners::all(px(0.)),
5335 *status,
5336 ),
5337 DiffHunkStatusKind::Deleted => (
5338 Bounds::new(
5339 point(
5340 hunk_hitbox.origin.x - hunk_hitbox.size.width,
5341 hunk_hitbox.origin.y,
5342 ),
5343 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
5344 ),
5345 cx.theme().colors().version_control_deleted,
5346 Corners::all(1. * line_height),
5347 *status,
5348 ),
5349 }),
5350 };
5351
5352 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
5353 // Flatten the background color with the editor color to prevent
5354 // elements below transparent hunks from showing through
5355 let flattened_background_color = cx
5356 .theme()
5357 .colors()
5358 .editor_background
5359 .blend(background_color);
5360
5361 if !Self::diff_hunk_hollow(status, cx) {
5362 window.paint_quad(quad(
5363 hunk_bounds,
5364 corner_radii,
5365 flattened_background_color,
5366 Edges::default(),
5367 transparent_black(),
5368 BorderStyle::default(),
5369 ));
5370 } else {
5371 let flattened_unstaged_background_color = cx
5372 .theme()
5373 .colors()
5374 .editor_background
5375 .blend(background_color.opacity(0.3));
5376
5377 window.paint_quad(quad(
5378 hunk_bounds,
5379 corner_radii,
5380 flattened_unstaged_background_color,
5381 Edges::all(Pixels(1.0)),
5382 flattened_background_color,
5383 BorderStyle::Solid,
5384 ));
5385 }
5386 }
5387 }
5388 });
5389 }
5390
5391 fn gutter_strip_width(line_height: Pixels) -> Pixels {
5392 (0.275 * line_height).floor()
5393 }
5394
5395 fn diff_hunk_bounds(
5396 snapshot: &EditorSnapshot,
5397 line_height: Pixels,
5398 gutter_bounds: Bounds<Pixels>,
5399 hunk: &DisplayDiffHunk,
5400 ) -> Bounds<Pixels> {
5401 let scroll_position = snapshot.scroll_position();
5402 let scroll_top = scroll_position.y * line_height;
5403 let gutter_strip_width = Self::gutter_strip_width(line_height);
5404
5405 match hunk {
5406 DisplayDiffHunk::Folded { display_row, .. } => {
5407 let start_y = display_row.as_f32() * line_height - scroll_top;
5408 let end_y = start_y + line_height;
5409 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5410 let highlight_size = size(gutter_strip_width, end_y - start_y);
5411 Bounds::new(highlight_origin, highlight_size)
5412 }
5413 DisplayDiffHunk::Unfolded {
5414 display_row_range,
5415 status,
5416 ..
5417 } => {
5418 if status.is_deleted() && display_row_range.is_empty() {
5419 let row = display_row_range.start;
5420
5421 let offset = line_height / 2.;
5422 let start_y = row.as_f32() * line_height - offset - scroll_top;
5423 let end_y = start_y + line_height;
5424
5425 let width = (0.35 * line_height).floor();
5426 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5427 let highlight_size = size(width, end_y - start_y);
5428 Bounds::new(highlight_origin, highlight_size)
5429 } else {
5430 let start_row = display_row_range.start;
5431 let end_row = display_row_range.end;
5432 // If we're in a multibuffer, row range span might include an
5433 // excerpt header, so if we were to draw the marker straight away,
5434 // the hunk might include the rows of that header.
5435 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
5436 // Instead, we simply check whether the range we're dealing with includes
5437 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
5438 let end_row_in_current_excerpt = snapshot
5439 .blocks_in_range(start_row..end_row)
5440 .find_map(|(start_row, block)| {
5441 if matches!(block, Block::ExcerptBoundary { .. }) {
5442 Some(start_row)
5443 } else {
5444 None
5445 }
5446 })
5447 .unwrap_or(end_row);
5448
5449 let start_y = start_row.as_f32() * line_height - scroll_top;
5450 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
5451
5452 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5453 let highlight_size = size(gutter_strip_width, end_y - start_y);
5454 Bounds::new(highlight_origin, highlight_size)
5455 }
5456 }
5457 }
5458 }
5459
5460 fn paint_gutter_indicators(
5461 &self,
5462 layout: &mut EditorLayout,
5463 window: &mut Window,
5464 cx: &mut App,
5465 ) {
5466 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5467 window.with_element_namespace("crease_toggles", |window| {
5468 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
5469 crease_toggle.paint(window, cx);
5470 }
5471 });
5472
5473 window.with_element_namespace("expand_toggles", |window| {
5474 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
5475 expand_toggle.paint(window, cx);
5476 }
5477 });
5478
5479 for breakpoint in layout.breakpoints.iter_mut() {
5480 breakpoint.paint(window, cx);
5481 }
5482
5483 for test_indicator in layout.test_indicators.iter_mut() {
5484 test_indicator.paint(window, cx);
5485 }
5486 });
5487 }
5488
5489 fn paint_gutter_highlights(
5490 &self,
5491 layout: &mut EditorLayout,
5492 window: &mut Window,
5493 cx: &mut App,
5494 ) {
5495 for (_, hunk_hitbox) in &layout.display_hunks {
5496 if let Some(hunk_hitbox) = hunk_hitbox {
5497 if !self
5498 .editor
5499 .read(cx)
5500 .buffer()
5501 .read(cx)
5502 .all_diff_hunks_expanded()
5503 {
5504 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
5505 }
5506 }
5507 }
5508
5509 let show_git_gutter = layout
5510 .position_map
5511 .snapshot
5512 .show_git_diff_gutter
5513 .unwrap_or_else(|| {
5514 matches!(
5515 ProjectSettings::get_global(cx).git.git_gutter,
5516 Some(GitGutterSetting::TrackedFiles)
5517 )
5518 });
5519 if show_git_gutter {
5520 Self::paint_gutter_diff_hunks(layout, window, cx)
5521 }
5522
5523 let highlight_width = 0.275 * layout.position_map.line_height;
5524 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
5525 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5526 for (range, color) in &layout.highlighted_gutter_ranges {
5527 let start_row = if range.start.row() < layout.visible_display_row_range.start {
5528 layout.visible_display_row_range.start - DisplayRow(1)
5529 } else {
5530 range.start.row()
5531 };
5532 let end_row = if range.end.row() > layout.visible_display_row_range.end {
5533 layout.visible_display_row_range.end + DisplayRow(1)
5534 } else {
5535 range.end.row()
5536 };
5537
5538 let start_y = layout.gutter_hitbox.top()
5539 + start_row.0 as f32 * layout.position_map.line_height
5540 - layout.position_map.scroll_pixel_position.y;
5541 let end_y = layout.gutter_hitbox.top()
5542 + (end_row.0 + 1) as f32 * layout.position_map.line_height
5543 - layout.position_map.scroll_pixel_position.y;
5544 let bounds = Bounds::from_corners(
5545 point(layout.gutter_hitbox.left(), start_y),
5546 point(layout.gutter_hitbox.left() + highlight_width, end_y),
5547 );
5548 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
5549 }
5550 });
5551 }
5552
5553 fn paint_blamed_display_rows(
5554 &self,
5555 layout: &mut EditorLayout,
5556 window: &mut Window,
5557 cx: &mut App,
5558 ) {
5559 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
5560 return;
5561 };
5562
5563 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5564 for mut blame_element in blamed_display_rows.into_iter() {
5565 blame_element.paint(window, cx);
5566 }
5567 })
5568 }
5569
5570 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5571 window.with_content_mask(
5572 Some(ContentMask {
5573 bounds: layout.position_map.text_hitbox.bounds,
5574 }),
5575 |window| {
5576 let editor = self.editor.read(cx);
5577 if editor.mouse_cursor_hidden {
5578 window.set_window_cursor_style(CursorStyle::None);
5579 } else if editor
5580 .hovered_link_state
5581 .as_ref()
5582 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
5583 {
5584 window.set_cursor_style(
5585 CursorStyle::PointingHand,
5586 &layout.position_map.text_hitbox,
5587 );
5588 } else {
5589 window.set_cursor_style(CursorStyle::IBeam, &layout.position_map.text_hitbox);
5590 };
5591
5592 self.paint_lines_background(layout, window, cx);
5593 let invisible_display_ranges = self.paint_highlights(layout, window);
5594 self.paint_lines(&invisible_display_ranges, layout, window, cx);
5595 self.paint_redactions(layout, window);
5596 self.paint_cursors(layout, window, cx);
5597 self.paint_inline_diagnostics(layout, window, cx);
5598 self.paint_inline_blame(layout, window, cx);
5599 self.paint_inline_code_actions(layout, window, cx);
5600 self.paint_diff_hunk_controls(layout, window, cx);
5601 window.with_element_namespace("crease_trailers", |window| {
5602 for trailer in layout.crease_trailers.iter_mut().flatten() {
5603 trailer.element.paint(window, cx);
5604 }
5605 });
5606 },
5607 )
5608 }
5609
5610 fn paint_highlights(
5611 &mut self,
5612 layout: &mut EditorLayout,
5613 window: &mut Window,
5614 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
5615 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5616 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
5617 let line_end_overshoot = 0.15 * layout.position_map.line_height;
5618 for (range, color) in &layout.highlighted_ranges {
5619 self.paint_highlighted_range(
5620 range.clone(),
5621 *color,
5622 Pixels::ZERO,
5623 line_end_overshoot,
5624 layout,
5625 window,
5626 );
5627 }
5628
5629 let corner_radius = 0.15 * layout.position_map.line_height;
5630
5631 for (player_color, selections) in &layout.selections {
5632 for selection in selections.iter() {
5633 self.paint_highlighted_range(
5634 selection.range.clone(),
5635 player_color.selection,
5636 corner_radius,
5637 corner_radius * 2.,
5638 layout,
5639 window,
5640 );
5641
5642 if selection.is_local && !selection.range.is_empty() {
5643 invisible_display_ranges.push(selection.range.clone());
5644 }
5645 }
5646 }
5647 invisible_display_ranges
5648 })
5649 }
5650
5651 fn paint_lines(
5652 &mut self,
5653 invisible_display_ranges: &[Range<DisplayPoint>],
5654 layout: &mut EditorLayout,
5655 window: &mut Window,
5656 cx: &mut App,
5657 ) {
5658 let whitespace_setting = self
5659 .editor
5660 .read(cx)
5661 .buffer
5662 .read(cx)
5663 .language_settings(cx)
5664 .show_whitespaces;
5665
5666 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
5667 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
5668 line_with_invisibles.draw(
5669 layout,
5670 row,
5671 layout.content_origin,
5672 whitespace_setting,
5673 invisible_display_ranges,
5674 window,
5675 cx,
5676 )
5677 }
5678
5679 for line_element in &mut layout.line_elements {
5680 line_element.paint(window, cx);
5681 }
5682 }
5683
5684 fn paint_lines_background(
5685 &mut self,
5686 layout: &mut EditorLayout,
5687 window: &mut Window,
5688 cx: &mut App,
5689 ) {
5690 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
5691 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
5692 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
5693 }
5694 }
5695
5696 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
5697 if layout.redacted_ranges.is_empty() {
5698 return;
5699 }
5700
5701 let line_end_overshoot = layout.line_end_overshoot();
5702
5703 // A softer than perfect black
5704 let redaction_color = gpui::rgb(0x0e1111);
5705
5706 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5707 for range in layout.redacted_ranges.iter() {
5708 self.paint_highlighted_range(
5709 range.clone(),
5710 redaction_color.into(),
5711 Pixels::ZERO,
5712 line_end_overshoot,
5713 layout,
5714 window,
5715 );
5716 }
5717 });
5718 }
5719
5720 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5721 for cursor in &mut layout.visible_cursors {
5722 cursor.paint(layout.content_origin, window, cx);
5723 }
5724 }
5725
5726 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5727 let Some(scrollbars_layout) = layout.scrollbars_layout.take() else {
5728 return;
5729 };
5730 let any_scrollbar_dragged = self.editor.read(cx).scroll_manager.any_scrollbar_dragged();
5731
5732 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
5733 let hitbox = &scrollbar_layout.hitbox;
5734 if scrollbars_layout.visible {
5735 let scrollbar_edges = match axis {
5736 ScrollbarAxis::Horizontal => Edges {
5737 top: Pixels::ZERO,
5738 right: Pixels::ZERO,
5739 bottom: Pixels::ZERO,
5740 left: Pixels::ZERO,
5741 },
5742 ScrollbarAxis::Vertical => Edges {
5743 top: Pixels::ZERO,
5744 right: Pixels::ZERO,
5745 bottom: Pixels::ZERO,
5746 left: ScrollbarLayout::BORDER_WIDTH,
5747 },
5748 };
5749
5750 window.paint_layer(hitbox.bounds, |window| {
5751 window.paint_quad(quad(
5752 hitbox.bounds,
5753 Corners::default(),
5754 cx.theme().colors().scrollbar_track_background,
5755 scrollbar_edges,
5756 cx.theme().colors().scrollbar_track_border,
5757 BorderStyle::Solid,
5758 ));
5759
5760 if axis == ScrollbarAxis::Vertical {
5761 let fast_markers =
5762 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
5763 // Refresh slow scrollbar markers in the background. Below, we
5764 // paint whatever markers have already been computed.
5765 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
5766
5767 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
5768 for marker in markers.iter().chain(&fast_markers) {
5769 let mut marker = marker.clone();
5770 marker.bounds.origin += hitbox.origin;
5771 window.paint_quad(marker);
5772 }
5773 }
5774
5775 if let Some(thumb_bounds) = scrollbar_layout.thumb_bounds {
5776 let scrollbar_thumb_color = match scrollbar_layout.thumb_state {
5777 ScrollbarThumbState::Dragging => {
5778 cx.theme().colors().scrollbar_thumb_active_background
5779 }
5780 ScrollbarThumbState::Hovered => {
5781 cx.theme().colors().scrollbar_thumb_hover_background
5782 }
5783 ScrollbarThumbState::Idle => {
5784 cx.theme().colors().scrollbar_thumb_background
5785 }
5786 };
5787 window.paint_quad(quad(
5788 thumb_bounds,
5789 Corners::default(),
5790 scrollbar_thumb_color,
5791 scrollbar_edges,
5792 cx.theme().colors().scrollbar_thumb_border,
5793 BorderStyle::Solid,
5794 ));
5795
5796 if any_scrollbar_dragged {
5797 window.set_window_cursor_style(CursorStyle::Arrow);
5798 } else {
5799 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
5800 }
5801 }
5802 })
5803 }
5804 }
5805
5806 window.on_mouse_event({
5807 let editor = self.editor.clone();
5808 let scrollbars_layout = scrollbars_layout.clone();
5809
5810 let mut mouse_position = window.mouse_position();
5811 move |event: &MouseMoveEvent, phase, window, cx| {
5812 if phase == DispatchPhase::Capture {
5813 return;
5814 }
5815
5816 editor.update(cx, |editor, cx| {
5817 if let Some((scrollbar_layout, axis)) = event
5818 .pressed_button
5819 .filter(|button| *button == MouseButton::Left)
5820 .and(editor.scroll_manager.dragging_scrollbar_axis())
5821 .and_then(|axis| {
5822 scrollbars_layout
5823 .iter_scrollbars()
5824 .find(|(_, a)| *a == axis)
5825 })
5826 {
5827 let ScrollbarLayout {
5828 hitbox,
5829 text_unit_size,
5830 ..
5831 } = scrollbar_layout;
5832
5833 let old_position = mouse_position.along(axis);
5834 let new_position = event.position.along(axis);
5835 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
5836 .contains(&old_position)
5837 {
5838 let position = editor.scroll_position(cx).apply_along(axis, |p| {
5839 (p + (new_position - old_position) / *text_unit_size).max(0.)
5840 });
5841 editor.set_scroll_position(position, window, cx);
5842 }
5843
5844 editor.scroll_manager.show_scrollbars(window, cx);
5845 cx.stop_propagation();
5846 } else if let Some((layout, axis)) = scrollbars_layout
5847 .get_hovered_axis(window)
5848 .filter(|_| !event.dragging())
5849 {
5850 if layout.thumb_hovered(&event.position) {
5851 editor
5852 .scroll_manager
5853 .set_hovered_scroll_thumb_axis(axis, cx);
5854 } else {
5855 editor.scroll_manager.reset_scrollbar_state(cx);
5856 }
5857
5858 editor.scroll_manager.show_scrollbars(window, cx);
5859 } else {
5860 editor.scroll_manager.reset_scrollbar_state(cx);
5861 }
5862
5863 mouse_position = event.position;
5864 })
5865 }
5866 });
5867
5868 if any_scrollbar_dragged {
5869 window.on_mouse_event({
5870 let editor = self.editor.clone();
5871 move |_: &MouseUpEvent, phase, window, cx| {
5872 if phase == DispatchPhase::Capture {
5873 return;
5874 }
5875
5876 editor.update(cx, |editor, cx| {
5877 if let Some((_, axis)) = scrollbars_layout.get_hovered_axis(window) {
5878 editor
5879 .scroll_manager
5880 .set_hovered_scroll_thumb_axis(axis, cx);
5881 } else {
5882 editor.scroll_manager.reset_scrollbar_state(cx);
5883 }
5884 cx.stop_propagation();
5885 });
5886 }
5887 });
5888 } else {
5889 window.on_mouse_event({
5890 let editor = self.editor.clone();
5891
5892 move |event: &MouseDownEvent, phase, window, cx| {
5893 if phase == DispatchPhase::Capture {
5894 return;
5895 }
5896 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
5897 else {
5898 return;
5899 };
5900
5901 let ScrollbarLayout {
5902 hitbox,
5903 visible_range,
5904 text_unit_size,
5905 thumb_bounds,
5906 ..
5907 } = scrollbar_layout;
5908
5909 let Some(thumb_bounds) = thumb_bounds else {
5910 return;
5911 };
5912
5913 editor.update(cx, |editor, cx| {
5914 editor
5915 .scroll_manager
5916 .set_dragged_scroll_thumb_axis(axis, cx);
5917
5918 let event_position = event.position.along(axis);
5919
5920 if event_position < thumb_bounds.origin.along(axis)
5921 || thumb_bounds.bottom_right().along(axis) < event_position
5922 {
5923 let center_position = ((event_position - hitbox.origin.along(axis))
5924 / *text_unit_size)
5925 .round() as u32;
5926 let start_position = center_position.saturating_sub(
5927 (visible_range.end - visible_range.start) as u32 / 2,
5928 );
5929
5930 let position = editor
5931 .scroll_position(cx)
5932 .apply_along(axis, |_| start_position as f32);
5933
5934 editor.set_scroll_position(position, window, cx);
5935 } else {
5936 editor.scroll_manager.show_scrollbars(window, cx);
5937 }
5938
5939 cx.stop_propagation();
5940 });
5941 }
5942 });
5943 }
5944 }
5945
5946 fn collect_fast_scrollbar_markers(
5947 &self,
5948 layout: &EditorLayout,
5949 scrollbar_layout: &ScrollbarLayout,
5950 cx: &mut App,
5951 ) -> Vec<PaintQuad> {
5952 const LIMIT: usize = 100;
5953 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5954 return vec![];
5955 }
5956 let cursor_ranges = layout
5957 .cursors
5958 .iter()
5959 .map(|(point, color)| ColoredRange {
5960 start: point.row(),
5961 end: point.row(),
5962 color: *color,
5963 })
5964 .collect_vec();
5965 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5966 }
5967
5968 fn refresh_slow_scrollbar_markers(
5969 &self,
5970 layout: &EditorLayout,
5971 scrollbar_layout: &ScrollbarLayout,
5972 window: &mut Window,
5973 cx: &mut App,
5974 ) {
5975 self.editor.update(cx, |editor, cx| {
5976 if !editor.is_singleton(cx)
5977 || !editor
5978 .scrollbar_marker_state
5979 .should_refresh(scrollbar_layout.hitbox.size)
5980 {
5981 return;
5982 }
5983
5984 let scrollbar_layout = scrollbar_layout.clone();
5985 let background_highlights = editor.background_highlights.clone();
5986 let snapshot = layout.position_map.snapshot.clone();
5987 let theme = cx.theme().clone();
5988 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5989
5990 editor.scrollbar_marker_state.dirty = false;
5991 editor.scrollbar_marker_state.pending_refresh =
5992 Some(cx.spawn_in(window, async move |editor, cx| {
5993 let scrollbar_size = scrollbar_layout.hitbox.size;
5994 let scrollbar_markers = cx
5995 .background_spawn(async move {
5996 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5997 let mut marker_quads = Vec::new();
5998 if scrollbar_settings.git_diff {
5999 let marker_row_ranges =
6000 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
6001 let start_display_row =
6002 MultiBufferPoint::new(hunk.row_range.start.0, 0)
6003 .to_display_point(&snapshot.display_snapshot)
6004 .row();
6005 let mut end_display_row =
6006 MultiBufferPoint::new(hunk.row_range.end.0, 0)
6007 .to_display_point(&snapshot.display_snapshot)
6008 .row();
6009 if end_display_row != start_display_row {
6010 end_display_row.0 -= 1;
6011 }
6012 let color = match &hunk.status().kind {
6013 DiffHunkStatusKind::Added => {
6014 theme.colors().version_control_added
6015 }
6016 DiffHunkStatusKind::Modified => {
6017 theme.colors().version_control_modified
6018 }
6019 DiffHunkStatusKind::Deleted => {
6020 theme.colors().version_control_deleted
6021 }
6022 };
6023 ColoredRange {
6024 start: start_display_row,
6025 end: end_display_row,
6026 color,
6027 }
6028 });
6029
6030 marker_quads.extend(
6031 scrollbar_layout
6032 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
6033 );
6034 }
6035
6036 for (background_highlight_id, (_, background_ranges)) in
6037 background_highlights.iter()
6038 {
6039 let is_search_highlights = *background_highlight_id
6040 == TypeId::of::<BufferSearchHighlights>();
6041 let is_text_highlights = *background_highlight_id
6042 == TypeId::of::<SelectedTextHighlight>();
6043 let is_symbol_occurrences = *background_highlight_id
6044 == TypeId::of::<DocumentHighlightRead>()
6045 || *background_highlight_id
6046 == TypeId::of::<DocumentHighlightWrite>();
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().colors(),
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 if cx.has_flag::<DebuggerFeatureFlag>() {
8031 for (display_row, (_, bp, state)) in &breakpoint_rows {
8032 if bp.is_enabled() && state.is_none_or(|s| s.verified) {
8033 active_rows.entry(*display_row).or_default().breakpoint = true;
8034 }
8035 }
8036 }
8037
8038 let line_numbers = self.layout_line_numbers(
8039 Some(&gutter_hitbox),
8040 gutter_dimensions,
8041 line_height,
8042 scroll_position,
8043 start_row..end_row,
8044 &row_infos,
8045 &active_rows,
8046 newest_selection_head,
8047 &snapshot,
8048 window,
8049 cx,
8050 );
8051
8052 // We add the gutter breakpoint indicator to breakpoint_rows after painting
8053 // line numbers so we don't paint a line number debug accent color if a user
8054 // has their mouse over that line when a breakpoint isn't there
8055 if cx.has_flag::<DebuggerFeatureFlag>() {
8056 self.editor.update(cx, |editor, _| {
8057 if let Some(phantom_breakpoint) = &mut editor
8058 .gutter_breakpoint_indicator
8059 .0
8060 .filter(|phantom_breakpoint| phantom_breakpoint.is_active)
8061 {
8062 // Is there a non-phantom breakpoint on this line?
8063 phantom_breakpoint.collides_with_existing_breakpoint = true;
8064 breakpoint_rows
8065 .entry(phantom_breakpoint.display_row)
8066 .or_insert_with(|| {
8067 let position = snapshot.display_point_to_anchor(
8068 DisplayPoint::new(phantom_breakpoint.display_row, 0),
8069 Bias::Right,
8070 );
8071 let breakpoint = Breakpoint::new_standard();
8072 phantom_breakpoint.collides_with_existing_breakpoint =
8073 false;
8074 (position, breakpoint, None)
8075 });
8076 }
8077 })
8078 }
8079
8080 let mut expand_toggles =
8081 window.with_element_namespace("expand_toggles", |window| {
8082 self.layout_expand_toggles(
8083 &gutter_hitbox,
8084 gutter_dimensions,
8085 em_width,
8086 line_height,
8087 scroll_position,
8088 &row_infos,
8089 window,
8090 cx,
8091 )
8092 });
8093
8094 let mut crease_toggles =
8095 window.with_element_namespace("crease_toggles", |window| {
8096 self.layout_crease_toggles(
8097 start_row..end_row,
8098 &row_infos,
8099 &active_rows,
8100 &snapshot,
8101 window,
8102 cx,
8103 )
8104 });
8105 let crease_trailers =
8106 window.with_element_namespace("crease_trailers", |window| {
8107 self.layout_crease_trailers(
8108 row_infos.iter().copied(),
8109 &snapshot,
8110 window,
8111 cx,
8112 )
8113 });
8114
8115 let display_hunks = self.layout_gutter_diff_hunks(
8116 line_height,
8117 &gutter_hitbox,
8118 start_row..end_row,
8119 &snapshot,
8120 window,
8121 cx,
8122 );
8123
8124 let mut line_layouts = Self::layout_lines(
8125 start_row..end_row,
8126 &snapshot,
8127 &self.style,
8128 editor_width,
8129 is_row_soft_wrapped,
8130 window,
8131 cx,
8132 );
8133 let new_fold_widths = line_layouts
8134 .iter()
8135 .flat_map(|layout| &layout.fragments)
8136 .filter_map(|fragment| {
8137 if let LineFragment::Element { id, size, .. } = fragment {
8138 Some((*id, size.width))
8139 } else {
8140 None
8141 }
8142 });
8143 if self.editor.update(cx, |editor, cx| {
8144 editor.update_fold_widths(new_fold_widths, cx)
8145 }) {
8146 // If the fold widths have changed, we need to prepaint
8147 // the element again to account for any changes in
8148 // wrapping.
8149 return self.prepaint(None, _inspector_id, bounds, &mut (), window, cx);
8150 }
8151
8152 let longest_line_blame_width = self
8153 .editor
8154 .update(cx, |editor, cx| {
8155 if !editor.show_git_blame_inline {
8156 return None;
8157 }
8158 let blame = editor.blame.as_ref()?;
8159 let blame_entry = blame
8160 .update(cx, |blame, cx| {
8161 let row_infos =
8162 snapshot.row_infos(snapshot.longest_row()).next()?;
8163 blame.blame_for_rows(&[row_infos], cx).next()
8164 })
8165 .flatten()?;
8166 let mut element = render_inline_blame_entry(blame_entry, &style, cx)?;
8167 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
8168 Some(
8169 element
8170 .layout_as_root(AvailableSpace::min_size(), window, cx)
8171 .width
8172 + inline_blame_padding,
8173 )
8174 })
8175 .unwrap_or(Pixels::ZERO);
8176
8177 let longest_line_width = layout_line(
8178 snapshot.longest_row(),
8179 &snapshot,
8180 &style,
8181 editor_width,
8182 is_row_soft_wrapped,
8183 window,
8184 cx,
8185 )
8186 .width;
8187
8188 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
8189 text_hitbox.bounds,
8190 glyph_grid_cell,
8191 size(longest_line_width, max_row.as_f32() * line_height),
8192 longest_line_blame_width,
8193 editor_width,
8194 EditorSettings::get_global(cx),
8195 );
8196
8197 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
8198
8199 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
8200 snapshot.sticky_header_excerpt(scroll_position.y)
8201 } else {
8202 None
8203 };
8204 let sticky_header_excerpt_id =
8205 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
8206
8207 let blocks = window.with_element_namespace("blocks", |window| {
8208 self.render_blocks(
8209 start_row..end_row,
8210 &snapshot,
8211 &hitbox,
8212 &text_hitbox,
8213 editor_width,
8214 &mut scroll_width,
8215 &editor_margins,
8216 em_width,
8217 gutter_dimensions.full_width(),
8218 line_height,
8219 &mut line_layouts,
8220 &local_selections,
8221 &selected_buffer_ids,
8222 is_row_soft_wrapped,
8223 sticky_header_excerpt_id,
8224 window,
8225 cx,
8226 )
8227 });
8228 let (mut blocks, row_block_types) = match blocks {
8229 Ok(blocks) => blocks,
8230 Err(resized_blocks) => {
8231 self.editor.update(cx, |editor, cx| {
8232 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
8233 });
8234 return self.prepaint(None, _inspector_id, bounds, &mut (), window, cx);
8235 }
8236 };
8237
8238 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
8239 window.with_element_namespace("blocks", |window| {
8240 self.layout_sticky_buffer_header(
8241 sticky_header_excerpt,
8242 scroll_position.y,
8243 line_height,
8244 right_margin,
8245 &snapshot,
8246 &hitbox,
8247 &selected_buffer_ids,
8248 &blocks,
8249 window,
8250 cx,
8251 )
8252 })
8253 });
8254
8255 let start_buffer_row =
8256 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
8257 let end_buffer_row =
8258 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
8259
8260 let scroll_max = point(
8261 ((scroll_width - editor_content_width) / em_width).max(0.0),
8262 max_scroll_top,
8263 );
8264
8265 self.editor.update(cx, |editor, cx| {
8266 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
8267
8268 let autoscrolled = if autoscroll_horizontally {
8269 editor.autoscroll_horizontally(
8270 start_row,
8271 editor_content_width,
8272 scroll_width,
8273 em_width,
8274 &line_layouts,
8275 cx,
8276 )
8277 } else {
8278 false
8279 };
8280
8281 if clamped || autoscrolled {
8282 snapshot = editor.snapshot(window, cx);
8283 scroll_position = snapshot.scroll_position();
8284 }
8285 });
8286
8287 let scroll_pixel_position = point(
8288 scroll_position.x * em_width,
8289 scroll_position.y * line_height,
8290 );
8291
8292 let indent_guides = self.layout_indent_guides(
8293 content_origin,
8294 text_hitbox.origin,
8295 start_buffer_row..end_buffer_row,
8296 scroll_pixel_position,
8297 line_height,
8298 &snapshot,
8299 window,
8300 cx,
8301 );
8302
8303 let crease_trailers =
8304 window.with_element_namespace("crease_trailers", |window| {
8305 self.prepaint_crease_trailers(
8306 crease_trailers,
8307 &line_layouts,
8308 line_height,
8309 content_origin,
8310 scroll_pixel_position,
8311 em_width,
8312 window,
8313 cx,
8314 )
8315 });
8316
8317 let (inline_completion_popover, inline_completion_popover_origin) = self
8318 .editor
8319 .update(cx, |editor, cx| {
8320 editor.render_edit_prediction_popover(
8321 &text_hitbox.bounds,
8322 content_origin,
8323 right_margin,
8324 &snapshot,
8325 start_row..end_row,
8326 scroll_position.y,
8327 scroll_position.y + height_in_lines,
8328 &line_layouts,
8329 line_height,
8330 scroll_pixel_position,
8331 newest_selection_head,
8332 editor_width,
8333 &style,
8334 window,
8335 cx,
8336 )
8337 })
8338 .unzip();
8339
8340 let mut inline_diagnostics = self.layout_inline_diagnostics(
8341 &line_layouts,
8342 &crease_trailers,
8343 &row_block_types,
8344 content_origin,
8345 scroll_pixel_position,
8346 inline_completion_popover_origin,
8347 start_row,
8348 end_row,
8349 line_height,
8350 em_width,
8351 &style,
8352 window,
8353 cx,
8354 );
8355
8356 let mut inline_blame = None;
8357 let mut inline_code_actions = None;
8358 if let Some(newest_selection_head) = newest_selection_head {
8359 let display_row = newest_selection_head.row();
8360 if (start_row..end_row).contains(&display_row)
8361 && !row_block_types.contains_key(&display_row)
8362 {
8363 inline_code_actions = self.layout_inline_code_actions(
8364 newest_selection_head,
8365 content_origin,
8366 scroll_pixel_position,
8367 line_height,
8368 &snapshot,
8369 window,
8370 cx,
8371 );
8372
8373 let line_ix = display_row.minus(start_row) as usize;
8374 let row_info = &row_infos[line_ix];
8375 let line_layout = &line_layouts[line_ix];
8376 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
8377
8378 inline_blame = self.layout_inline_blame(
8379 display_row,
8380 row_info,
8381 line_layout,
8382 crease_trailer_layout,
8383 em_width,
8384 content_origin,
8385 scroll_pixel_position,
8386 line_height,
8387 &text_hitbox,
8388 window,
8389 cx,
8390 );
8391 if inline_blame.is_some() {
8392 // Blame overrides inline diagnostics
8393 inline_diagnostics.remove(&display_row);
8394 }
8395 }
8396 }
8397
8398 let blamed_display_rows = self.layout_blame_entries(
8399 &row_infos,
8400 em_width,
8401 scroll_position,
8402 line_height,
8403 &gutter_hitbox,
8404 gutter_dimensions.git_blame_entries_width,
8405 window,
8406 cx,
8407 );
8408
8409 self.editor.update(cx, |editor, cx| {
8410 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
8411
8412 let autoscrolled = if autoscroll_horizontally {
8413 editor.autoscroll_horizontally(
8414 start_row,
8415 editor_content_width,
8416 scroll_width,
8417 em_width,
8418 &line_layouts,
8419 cx,
8420 )
8421 } else {
8422 false
8423 };
8424
8425 if clamped || autoscrolled {
8426 snapshot = editor.snapshot(window, cx);
8427 scroll_position = snapshot.scroll_position();
8428 }
8429 });
8430
8431 let line_elements = self.prepaint_lines(
8432 start_row,
8433 &mut line_layouts,
8434 line_height,
8435 scroll_pixel_position,
8436 content_origin,
8437 window,
8438 cx,
8439 );
8440
8441 window.with_element_namespace("blocks", |window| {
8442 self.layout_blocks(
8443 &mut blocks,
8444 &hitbox,
8445 line_height,
8446 scroll_pixel_position,
8447 window,
8448 cx,
8449 );
8450 });
8451
8452 let cursors = self.collect_cursors(&snapshot, cx);
8453 let visible_row_range = start_row..end_row;
8454 let non_visible_cursors = cursors
8455 .iter()
8456 .any(|c| !visible_row_range.contains(&c.0.row()));
8457
8458 let visible_cursors = self.layout_visible_cursors(
8459 &snapshot,
8460 &selections,
8461 &row_block_types,
8462 start_row..end_row,
8463 &line_layouts,
8464 &text_hitbox,
8465 content_origin,
8466 scroll_position,
8467 scroll_pixel_position,
8468 line_height,
8469 em_width,
8470 em_advance,
8471 autoscroll_containing_element,
8472 window,
8473 cx,
8474 );
8475
8476 let scrollbars_layout = self.layout_scrollbars(
8477 &snapshot,
8478 &scrollbar_layout_information,
8479 content_offset,
8480 scroll_position,
8481 non_visible_cursors,
8482 right_margin,
8483 editor_width,
8484 window,
8485 cx,
8486 );
8487
8488 let gutter_settings = EditorSettings::get_global(cx).gutter;
8489
8490 let context_menu_layout =
8491 if let Some(newest_selection_head) = newest_selection_head {
8492 let newest_selection_point =
8493 newest_selection_head.to_point(&snapshot.display_snapshot);
8494 if (start_row..end_row).contains(&newest_selection_head.row()) {
8495 self.layout_cursor_popovers(
8496 line_height,
8497 &text_hitbox,
8498 content_origin,
8499 right_margin,
8500 start_row,
8501 scroll_pixel_position,
8502 &line_layouts,
8503 newest_selection_head,
8504 newest_selection_point,
8505 &style,
8506 window,
8507 cx,
8508 )
8509 } else {
8510 None
8511 }
8512 } else {
8513 None
8514 };
8515
8516 self.layout_gutter_menu(
8517 line_height,
8518 &text_hitbox,
8519 content_origin,
8520 right_margin,
8521 scroll_pixel_position,
8522 gutter_dimensions.width - gutter_dimensions.left_padding,
8523 window,
8524 cx,
8525 );
8526
8527 let test_indicators = if gutter_settings.runnables {
8528 self.layout_run_indicators(
8529 line_height,
8530 start_row..end_row,
8531 &row_infos,
8532 scroll_pixel_position,
8533 &gutter_dimensions,
8534 &gutter_hitbox,
8535 &display_hunks,
8536 &snapshot,
8537 &mut breakpoint_rows,
8538 window,
8539 cx,
8540 )
8541 } else {
8542 Vec::new()
8543 };
8544
8545 let show_breakpoints = snapshot
8546 .show_breakpoints
8547 .unwrap_or(gutter_settings.breakpoints);
8548 let breakpoints = if cx.has_flag::<DebuggerFeatureFlag>() && show_breakpoints {
8549 self.layout_breakpoints(
8550 line_height,
8551 start_row..end_row,
8552 scroll_pixel_position,
8553 &gutter_dimensions,
8554 &gutter_hitbox,
8555 &display_hunks,
8556 &snapshot,
8557 breakpoint_rows,
8558 &row_infos,
8559 window,
8560 cx,
8561 )
8562 } else {
8563 vec![]
8564 };
8565
8566 self.layout_signature_help(
8567 &hitbox,
8568 content_origin,
8569 scroll_pixel_position,
8570 newest_selection_head,
8571 start_row,
8572 &line_layouts,
8573 line_height,
8574 em_width,
8575 context_menu_layout,
8576 window,
8577 cx,
8578 );
8579
8580 if !cx.has_active_drag() {
8581 self.layout_hover_popovers(
8582 &snapshot,
8583 &hitbox,
8584 start_row..end_row,
8585 content_origin,
8586 scroll_pixel_position,
8587 &line_layouts,
8588 line_height,
8589 em_width,
8590 context_menu_layout,
8591 window,
8592 cx,
8593 );
8594 }
8595
8596 let mouse_context_menu = self.layout_mouse_context_menu(
8597 &snapshot,
8598 start_row..end_row,
8599 content_origin,
8600 window,
8601 cx,
8602 );
8603
8604 window.with_element_namespace("crease_toggles", |window| {
8605 self.prepaint_crease_toggles(
8606 &mut crease_toggles,
8607 line_height,
8608 &gutter_dimensions,
8609 gutter_settings,
8610 scroll_pixel_position,
8611 &gutter_hitbox,
8612 window,
8613 cx,
8614 )
8615 });
8616
8617 window.with_element_namespace("expand_toggles", |window| {
8618 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
8619 });
8620
8621 let minimap = window.with_element_namespace("minimap", |window| {
8622 self.layout_minimap(
8623 &snapshot,
8624 minimap_width,
8625 scroll_position,
8626 &scrollbar_layout_information,
8627 scrollbars_layout.as_ref(),
8628 window,
8629 cx,
8630 )
8631 });
8632
8633 let invisible_symbol_font_size = font_size / 2.;
8634 let tab_invisible = window.text_system().shape_line(
8635 "→".into(),
8636 invisible_symbol_font_size,
8637 &[TextRun {
8638 len: "→".len(),
8639 font: self.style.text.font(),
8640 color: cx.theme().colors().editor_invisible,
8641 background_color: None,
8642 underline: None,
8643 strikethrough: None,
8644 }],
8645 );
8646 let space_invisible = window.text_system().shape_line(
8647 "•".into(),
8648 invisible_symbol_font_size,
8649 &[TextRun {
8650 len: "•".len(),
8651 font: self.style.text.font(),
8652 color: cx.theme().colors().editor_invisible,
8653 background_color: None,
8654 underline: None,
8655 strikethrough: None,
8656 }],
8657 );
8658
8659 let mode = snapshot.mode.clone();
8660
8661 let position_map = Rc::new(PositionMap {
8662 size: bounds.size,
8663 visible_row_range,
8664 scroll_pixel_position,
8665 scroll_max,
8666 line_layouts,
8667 line_height,
8668 em_width,
8669 em_advance,
8670 snapshot,
8671 gutter_hitbox: gutter_hitbox.clone(),
8672 text_hitbox: text_hitbox.clone(),
8673 });
8674
8675 self.editor.update(cx, |editor, _| {
8676 editor.last_position_map = Some(position_map.clone())
8677 });
8678
8679 let diff_hunk_controls = if is_read_only {
8680 vec![]
8681 } else {
8682 self.layout_diff_hunk_controls(
8683 start_row..end_row,
8684 &row_infos,
8685 &text_hitbox,
8686 &position_map,
8687 newest_selection_head,
8688 line_height,
8689 right_margin,
8690 scroll_pixel_position,
8691 &display_hunks,
8692 &highlighted_rows,
8693 self.editor.clone(),
8694 window,
8695 cx,
8696 )
8697 };
8698
8699 EditorLayout {
8700 mode,
8701 position_map,
8702 visible_display_row_range: start_row..end_row,
8703 wrap_guides,
8704 indent_guides,
8705 hitbox,
8706 gutter_hitbox,
8707 display_hunks,
8708 content_origin,
8709 scrollbars_layout,
8710 minimap,
8711 active_rows,
8712 highlighted_rows,
8713 highlighted_ranges,
8714 highlighted_gutter_ranges,
8715 redacted_ranges,
8716 line_elements,
8717 line_numbers,
8718 blamed_display_rows,
8719 inline_diagnostics,
8720 inline_blame,
8721 inline_code_actions,
8722 blocks,
8723 cursors,
8724 visible_cursors,
8725 selections,
8726 inline_completion_popover,
8727 diff_hunk_controls,
8728 mouse_context_menu,
8729 test_indicators,
8730 breakpoints,
8731 crease_toggles,
8732 crease_trailers,
8733 tab_invisible,
8734 space_invisible,
8735 sticky_buffer_header,
8736 expand_toggles,
8737 }
8738 })
8739 })
8740 })
8741 }
8742
8743 fn paint(
8744 &mut self,
8745 _: Option<&GlobalElementId>,
8746 __inspector_id: Option<&gpui::InspectorElementId>,
8747 bounds: Bounds<gpui::Pixels>,
8748 _: &mut Self::RequestLayoutState,
8749 layout: &mut Self::PrepaintState,
8750 window: &mut Window,
8751 cx: &mut App,
8752 ) {
8753 let focus_handle = self.editor.focus_handle(cx);
8754 let key_context = self
8755 .editor
8756 .update(cx, |editor, cx| editor.key_context(window, cx));
8757
8758 window.set_key_context(key_context);
8759 window.handle_input(
8760 &focus_handle,
8761 ElementInputHandler::new(bounds, self.editor.clone()),
8762 cx,
8763 );
8764 self.register_actions(window, cx);
8765 self.register_key_listeners(window, cx, layout);
8766
8767 let text_style = TextStyleRefinement {
8768 font_size: Some(self.style.text.font_size),
8769 line_height: Some(self.style.text.line_height),
8770 ..Default::default()
8771 };
8772 let rem_size = self.rem_size(cx);
8773 window.with_rem_size(rem_size, |window| {
8774 window.with_text_style(Some(text_style), |window| {
8775 window.with_content_mask(Some(ContentMask { bounds }), |window| {
8776 self.paint_mouse_listeners(layout, window, cx);
8777 self.paint_background(layout, window, cx);
8778 self.paint_indent_guides(layout, window, cx);
8779
8780 if layout.gutter_hitbox.size.width > Pixels::ZERO {
8781 self.paint_blamed_display_rows(layout, window, cx);
8782 self.paint_line_numbers(layout, window, cx);
8783 }
8784
8785 self.paint_text(layout, window, cx);
8786
8787 if layout.gutter_hitbox.size.width > Pixels::ZERO {
8788 self.paint_gutter_highlights(layout, window, cx);
8789 self.paint_gutter_indicators(layout, window, cx);
8790 }
8791
8792 if !layout.blocks.is_empty() {
8793 window.with_element_namespace("blocks", |window| {
8794 self.paint_blocks(layout, window, cx);
8795 });
8796 }
8797
8798 window.with_element_namespace("blocks", |window| {
8799 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
8800 sticky_header.paint(window, cx)
8801 }
8802 });
8803
8804 self.paint_minimap(layout, window, cx);
8805 self.paint_scrollbars(layout, window, cx);
8806 self.paint_inline_completion_popover(layout, window, cx);
8807 self.paint_mouse_context_menu(layout, window, cx);
8808 });
8809 })
8810 })
8811 }
8812}
8813
8814pub(super) fn gutter_bounds(
8815 editor_bounds: Bounds<Pixels>,
8816 gutter_dimensions: GutterDimensions,
8817) -> Bounds<Pixels> {
8818 Bounds {
8819 origin: editor_bounds.origin,
8820 size: size(gutter_dimensions.width, editor_bounds.size.height),
8821 }
8822}
8823
8824#[derive(Clone, Copy)]
8825struct ContextMenuLayout {
8826 y_flipped: bool,
8827 bounds: Bounds<Pixels>,
8828}
8829
8830/// Holds information required for layouting the editor scrollbars.
8831struct ScrollbarLayoutInformation {
8832 /// The bounds of the editor area (excluding the content offset).
8833 editor_bounds: Bounds<Pixels>,
8834 /// The available range to scroll within the document.
8835 scroll_range: Size<Pixels>,
8836 /// The space available for one glyph in the editor.
8837 glyph_grid_cell: Size<Pixels>,
8838}
8839
8840impl ScrollbarLayoutInformation {
8841 pub fn new(
8842 editor_bounds: Bounds<Pixels>,
8843 glyph_grid_cell: Size<Pixels>,
8844 document_size: Size<Pixels>,
8845 longest_line_blame_width: Pixels,
8846 editor_width: Pixels,
8847 settings: &EditorSettings,
8848 ) -> Self {
8849 let vertical_overscroll = match settings.scroll_beyond_last_line {
8850 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
8851 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
8852 ScrollBeyondLastLine::VerticalScrollMargin => {
8853 (1.0 + settings.vertical_scroll_margin) * glyph_grid_cell.height
8854 }
8855 };
8856
8857 let right_margin = if document_size.width + longest_line_blame_width >= editor_width {
8858 glyph_grid_cell.width
8859 } else {
8860 px(0.0)
8861 };
8862
8863 let overscroll = size(right_margin + longest_line_blame_width, vertical_overscroll);
8864
8865 let scroll_range = document_size + overscroll;
8866
8867 ScrollbarLayoutInformation {
8868 editor_bounds,
8869 scroll_range,
8870 glyph_grid_cell,
8871 }
8872 }
8873}
8874
8875impl IntoElement for EditorElement {
8876 type Element = Self;
8877
8878 fn into_element(self) -> Self::Element {
8879 self
8880 }
8881}
8882
8883pub struct EditorLayout {
8884 position_map: Rc<PositionMap>,
8885 hitbox: Hitbox,
8886 gutter_hitbox: Hitbox,
8887 content_origin: gpui::Point<Pixels>,
8888 scrollbars_layout: Option<EditorScrollbars>,
8889 minimap: Option<MinimapLayout>,
8890 mode: EditorMode,
8891 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
8892 indent_guides: Option<Vec<IndentGuideLayout>>,
8893 visible_display_row_range: Range<DisplayRow>,
8894 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
8895 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
8896 line_elements: SmallVec<[AnyElement; 1]>,
8897 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
8898 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
8899 blamed_display_rows: Option<Vec<AnyElement>>,
8900 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
8901 inline_blame: Option<AnyElement>,
8902 inline_code_actions: Option<AnyElement>,
8903 blocks: Vec<BlockLayout>,
8904 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
8905 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
8906 redacted_ranges: Vec<Range<DisplayPoint>>,
8907 cursors: Vec<(DisplayPoint, Hsla)>,
8908 visible_cursors: Vec<CursorLayout>,
8909 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
8910 test_indicators: Vec<AnyElement>,
8911 breakpoints: Vec<AnyElement>,
8912 crease_toggles: Vec<Option<AnyElement>>,
8913 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
8914 diff_hunk_controls: Vec<AnyElement>,
8915 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
8916 inline_completion_popover: Option<AnyElement>,
8917 mouse_context_menu: Option<AnyElement>,
8918 tab_invisible: ShapedLine,
8919 space_invisible: ShapedLine,
8920 sticky_buffer_header: Option<AnyElement>,
8921}
8922
8923impl EditorLayout {
8924 fn line_end_overshoot(&self) -> Pixels {
8925 0.15 * self.position_map.line_height
8926 }
8927}
8928
8929struct LineNumberLayout {
8930 shaped_line: ShapedLine,
8931 hitbox: Option<Hitbox>,
8932}
8933
8934struct ColoredRange<T> {
8935 start: T,
8936 end: T,
8937 color: Hsla,
8938}
8939
8940impl Along for ScrollbarAxes {
8941 type Unit = bool;
8942
8943 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
8944 match axis {
8945 ScrollbarAxis::Horizontal => self.horizontal,
8946 ScrollbarAxis::Vertical => self.vertical,
8947 }
8948 }
8949
8950 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
8951 match axis {
8952 ScrollbarAxis::Horizontal => ScrollbarAxes {
8953 horizontal: f(self.horizontal),
8954 vertical: self.vertical,
8955 },
8956 ScrollbarAxis::Vertical => ScrollbarAxes {
8957 horizontal: self.horizontal,
8958 vertical: f(self.vertical),
8959 },
8960 }
8961 }
8962}
8963
8964#[derive(Clone)]
8965struct EditorScrollbars {
8966 pub vertical: Option<ScrollbarLayout>,
8967 pub horizontal: Option<ScrollbarLayout>,
8968 pub visible: bool,
8969}
8970
8971impl EditorScrollbars {
8972 pub fn from_scrollbar_axes(
8973 settings_visibility: ScrollbarAxes,
8974 layout_information: &ScrollbarLayoutInformation,
8975 content_offset: gpui::Point<Pixels>,
8976 scroll_position: gpui::Point<f32>,
8977 scrollbar_width: Pixels,
8978 right_margin: Pixels,
8979 editor_width: Pixels,
8980 show_scrollbars: bool,
8981 scrollbar_state: Option<&ActiveScrollbarState>,
8982 window: &mut Window,
8983 ) -> Self {
8984 let ScrollbarLayoutInformation {
8985 editor_bounds,
8986 scroll_range,
8987 glyph_grid_cell,
8988 } = layout_information;
8989
8990 let viewport_size = size(editor_width, editor_bounds.size.height);
8991
8992 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
8993 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
8994 Corner::BottomLeft,
8995 editor_bounds.bottom_left(),
8996 size(
8997 // The horizontal viewport size differs from the space available for the
8998 // horizontal scrollbar, so we have to manually stich it together here.
8999 editor_bounds.size.width - right_margin,
9000 scrollbar_width,
9001 ),
9002 ),
9003 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
9004 Corner::TopRight,
9005 editor_bounds.top_right(),
9006 size(scrollbar_width, viewport_size.height),
9007 ),
9008 };
9009
9010 let mut create_scrollbar_layout = |axis| {
9011 settings_visibility
9012 .along(axis)
9013 .then(|| {
9014 (
9015 viewport_size.along(axis) - content_offset.along(axis),
9016 scroll_range.along(axis),
9017 )
9018 })
9019 .filter(|(viewport_size, scroll_range)| {
9020 // The scrollbar should only be rendered if the content does
9021 // not entirely fit into the editor
9022 // However, this only applies to the horizontal scrollbar, as information about the
9023 // vertical scrollbar layout is always needed for scrollbar diagnostics.
9024 axis != ScrollbarAxis::Horizontal || viewport_size < scroll_range
9025 })
9026 .map(|(viewport_size, scroll_range)| {
9027 ScrollbarLayout::new(
9028 window.insert_hitbox(scrollbar_bounds_for(axis), HitboxBehavior::Normal),
9029 viewport_size,
9030 scroll_range,
9031 glyph_grid_cell.along(axis),
9032 content_offset.along(axis),
9033 scroll_position.along(axis),
9034 show_scrollbars,
9035 axis,
9036 )
9037 .with_thumb_state(
9038 scrollbar_state.and_then(|state| state.thumb_state_for_axis(axis)),
9039 )
9040 })
9041 };
9042
9043 Self {
9044 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
9045 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
9046 visible: show_scrollbars,
9047 }
9048 }
9049
9050 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
9051 [
9052 (&self.vertical, ScrollbarAxis::Vertical),
9053 (&self.horizontal, ScrollbarAxis::Horizontal),
9054 ]
9055 .into_iter()
9056 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
9057 }
9058
9059 /// Returns the currently hovered scrollbar axis, if any.
9060 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
9061 self.iter_scrollbars()
9062 .find(|s| s.0.hitbox.is_hovered(window))
9063 }
9064}
9065
9066#[derive(Clone)]
9067struct ScrollbarLayout {
9068 hitbox: Hitbox,
9069 visible_range: Range<f32>,
9070 text_unit_size: Pixels,
9071 thumb_bounds: Option<Bounds<Pixels>>,
9072 thumb_state: ScrollbarThumbState,
9073}
9074
9075impl ScrollbarLayout {
9076 const BORDER_WIDTH: Pixels = px(1.0);
9077 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
9078 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
9079 const MIN_THUMB_SIZE: Pixels = px(25.0);
9080
9081 fn new(
9082 scrollbar_track_hitbox: Hitbox,
9083 viewport_size: Pixels,
9084 scroll_range: Pixels,
9085 glyph_space: Pixels,
9086 content_offset: Pixels,
9087 scroll_position: f32,
9088 show_thumb: bool,
9089 axis: ScrollbarAxis,
9090 ) -> Self {
9091 let track_bounds = scrollbar_track_hitbox.bounds;
9092 // The length of the track available to the scrollbar thumb. We deliberately
9093 // exclude the content size here so that the thumb aligns with the content.
9094 let track_length = track_bounds.size.along(axis) - content_offset;
9095
9096 Self::new_with_hitbox_and_track_length(
9097 scrollbar_track_hitbox,
9098 track_length,
9099 viewport_size,
9100 scroll_range,
9101 glyph_space,
9102 content_offset,
9103 scroll_position,
9104 show_thumb,
9105 axis,
9106 )
9107 }
9108
9109 fn for_minimap(
9110 minimap_track_hitbox: Hitbox,
9111 visible_lines: f32,
9112 total_editor_lines: f32,
9113 minimap_line_height: Pixels,
9114 scroll_position: f32,
9115 minimap_scroll_top: f32,
9116 show_thumb: bool,
9117 ) -> Self {
9118 // The scrollbar thumb size is calculated as
9119 // (visible_content/total_content) × scrollbar_track_length.
9120 //
9121 // For the minimap's thumb layout, we leverage this by setting the
9122 // scrollbar track length to the entire document size (using minimap line
9123 // height). This creates a thumb that exactly represents the editor
9124 // viewport scaled to minimap proportions.
9125 //
9126 // We adjust the thumb position relative to `minimap_scroll_top` to
9127 // accommodate for the deliberately oversized track.
9128 //
9129 // This approach ensures that the minimap thumb accurately reflects the
9130 // editor's current scroll position whilst nicely synchronizing the minimap
9131 // thumb and scrollbar thumb.
9132 let scroll_range = total_editor_lines * minimap_line_height;
9133 let viewport_size = visible_lines * minimap_line_height;
9134
9135 let track_top_offset = -minimap_scroll_top * minimap_line_height;
9136
9137 Self::new_with_hitbox_and_track_length(
9138 minimap_track_hitbox,
9139 scroll_range,
9140 viewport_size,
9141 scroll_range,
9142 minimap_line_height,
9143 track_top_offset,
9144 scroll_position,
9145 show_thumb,
9146 ScrollbarAxis::Vertical,
9147 )
9148 }
9149
9150 fn new_with_hitbox_and_track_length(
9151 scrollbar_track_hitbox: Hitbox,
9152 track_length: Pixels,
9153 viewport_size: Pixels,
9154 scroll_range: Pixels,
9155 glyph_space: Pixels,
9156 content_offset: Pixels,
9157 scroll_position: f32,
9158 show_thumb: bool,
9159 axis: ScrollbarAxis,
9160 ) -> Self {
9161 let text_units_per_page = viewport_size / glyph_space;
9162 let visible_range = scroll_position..scroll_position + text_units_per_page;
9163 let total_text_units = scroll_range / glyph_space;
9164
9165 let thumb_percentage = text_units_per_page / total_text_units;
9166 let thumb_size = (track_length * thumb_percentage)
9167 .max(ScrollbarLayout::MIN_THUMB_SIZE)
9168 .min(track_length);
9169
9170 let text_unit_divisor = (total_text_units - text_units_per_page).max(0.);
9171
9172 let content_larger_than_viewport = text_unit_divisor > 0.;
9173
9174 let text_unit_size = if content_larger_than_viewport {
9175 (track_length - thumb_size) / text_unit_divisor
9176 } else {
9177 glyph_space
9178 };
9179
9180 let thumb_bounds = (show_thumb && content_larger_than_viewport).then(|| {
9181 Self::thumb_bounds(
9182 &scrollbar_track_hitbox,
9183 content_offset,
9184 visible_range.start,
9185 text_unit_size,
9186 thumb_size,
9187 axis,
9188 )
9189 });
9190
9191 ScrollbarLayout {
9192 hitbox: scrollbar_track_hitbox,
9193 visible_range,
9194 text_unit_size,
9195 thumb_bounds,
9196 thumb_state: Default::default(),
9197 }
9198 }
9199
9200 fn with_thumb_state(self, thumb_state: Option<ScrollbarThumbState>) -> Self {
9201 if let Some(thumb_state) = thumb_state {
9202 Self {
9203 thumb_state,
9204 ..self
9205 }
9206 } else {
9207 self
9208 }
9209 }
9210
9211 fn thumb_bounds(
9212 scrollbar_track: &Hitbox,
9213 content_offset: Pixels,
9214 visible_range_start: f32,
9215 text_unit_size: Pixels,
9216 thumb_size: Pixels,
9217 axis: ScrollbarAxis,
9218 ) -> Bounds<Pixels> {
9219 let thumb_origin = scrollbar_track.origin.apply_along(axis, |origin| {
9220 origin + content_offset + visible_range_start * text_unit_size
9221 });
9222 Bounds::new(
9223 thumb_origin,
9224 scrollbar_track.size.apply_along(axis, |_| thumb_size),
9225 )
9226 }
9227
9228 fn thumb_hovered(&self, position: &gpui::Point<Pixels>) -> bool {
9229 self.thumb_bounds
9230 .is_some_and(|bounds| bounds.contains(position))
9231 }
9232
9233 fn marker_quads_for_ranges(
9234 &self,
9235 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
9236 column: Option<usize>,
9237 ) -> Vec<PaintQuad> {
9238 struct MinMax {
9239 min: Pixels,
9240 max: Pixels,
9241 }
9242 let (x_range, height_limit) = if let Some(column) = column {
9243 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
9244 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
9245 let end = start + column_width;
9246 (
9247 Range { start, end },
9248 MinMax {
9249 min: Self::MIN_MARKER_HEIGHT,
9250 max: px(f32::MAX),
9251 },
9252 )
9253 } else {
9254 (
9255 Range {
9256 start: Self::BORDER_WIDTH,
9257 end: self.hitbox.size.width,
9258 },
9259 MinMax {
9260 min: Self::LINE_MARKER_HEIGHT,
9261 max: Self::LINE_MARKER_HEIGHT,
9262 },
9263 )
9264 };
9265
9266 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
9267 let mut pixel_ranges = row_ranges
9268 .into_iter()
9269 .map(|range| {
9270 let start_y = row_to_y(range.start);
9271 let end_y = row_to_y(range.end)
9272 + self
9273 .text_unit_size
9274 .max(height_limit.min)
9275 .min(height_limit.max);
9276 ColoredRange {
9277 start: start_y,
9278 end: end_y,
9279 color: range.color,
9280 }
9281 })
9282 .peekable();
9283
9284 let mut quads = Vec::new();
9285 while let Some(mut pixel_range) = pixel_ranges.next() {
9286 while let Some(next_pixel_range) = pixel_ranges.peek() {
9287 if pixel_range.end >= next_pixel_range.start - px(1.0)
9288 && pixel_range.color == next_pixel_range.color
9289 {
9290 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
9291 pixel_ranges.next();
9292 } else {
9293 break;
9294 }
9295 }
9296
9297 let bounds = Bounds::from_corners(
9298 point(x_range.start, pixel_range.start),
9299 point(x_range.end, pixel_range.end),
9300 );
9301 quads.push(quad(
9302 bounds,
9303 Corners::default(),
9304 pixel_range.color,
9305 Edges::default(),
9306 Hsla::transparent_black(),
9307 BorderStyle::default(),
9308 ));
9309 }
9310
9311 quads
9312 }
9313}
9314
9315struct MinimapLayout {
9316 pub minimap: AnyElement,
9317 pub thumb_layout: ScrollbarLayout,
9318 pub minimap_scroll_top: f32,
9319 pub minimap_line_height: Pixels,
9320 pub thumb_border_style: MinimapThumbBorder,
9321 pub max_scroll_top: f32,
9322}
9323
9324impl MinimapLayout {
9325 const MINIMAP_WIDTH: Pixels = px(100.);
9326 /// Calculates the scroll top offset the minimap editor has to have based on the
9327 /// current scroll progress.
9328 fn calculate_minimap_top_offset(
9329 document_lines: f32,
9330 visible_editor_lines: f32,
9331 visible_minimap_lines: f32,
9332 scroll_position: f32,
9333 ) -> f32 {
9334 let non_visible_document_lines = (document_lines - visible_editor_lines).max(0.);
9335 if non_visible_document_lines == 0. {
9336 0.
9337 } else {
9338 let scroll_percentage = (scroll_position / non_visible_document_lines).clamp(0., 1.);
9339 scroll_percentage * (document_lines - visible_minimap_lines).max(0.)
9340 }
9341 }
9342}
9343
9344struct CreaseTrailerLayout {
9345 element: AnyElement,
9346 bounds: Bounds<Pixels>,
9347}
9348
9349pub(crate) struct PositionMap {
9350 pub size: Size<Pixels>,
9351 pub line_height: Pixels,
9352 pub scroll_pixel_position: gpui::Point<Pixels>,
9353 pub scroll_max: gpui::Point<f32>,
9354 pub em_width: Pixels,
9355 pub em_advance: Pixels,
9356 pub visible_row_range: Range<DisplayRow>,
9357 pub line_layouts: Vec<LineWithInvisibles>,
9358 pub snapshot: EditorSnapshot,
9359 pub text_hitbox: Hitbox,
9360 pub gutter_hitbox: Hitbox,
9361}
9362
9363#[derive(Debug, Copy, Clone)]
9364pub struct PointForPosition {
9365 pub previous_valid: DisplayPoint,
9366 pub next_valid: DisplayPoint,
9367 pub exact_unclipped: DisplayPoint,
9368 pub column_overshoot_after_line_end: u32,
9369}
9370
9371impl PointForPosition {
9372 pub fn as_valid(&self) -> Option<DisplayPoint> {
9373 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
9374 Some(self.previous_valid)
9375 } else {
9376 None
9377 }
9378 }
9379
9380 pub fn intersects_selection(&self, selection: &Selection<DisplayPoint>) -> bool {
9381 let Some(valid_point) = self.as_valid() else {
9382 return false;
9383 };
9384 let range = selection.range();
9385
9386 let candidate_row = valid_point.row();
9387 let candidate_col = valid_point.column();
9388
9389 let start_row = range.start.row();
9390 let start_col = range.start.column();
9391 let end_row = range.end.row();
9392 let end_col = range.end.column();
9393
9394 if candidate_row < start_row || candidate_row > end_row {
9395 false
9396 } else if start_row == end_row {
9397 candidate_col >= start_col && candidate_col < end_col
9398 } else {
9399 if candidate_row == start_row {
9400 candidate_col >= start_col
9401 } else if candidate_row == end_row {
9402 candidate_col < end_col
9403 } else {
9404 true
9405 }
9406 }
9407 }
9408}
9409
9410impl PositionMap {
9411 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
9412 let text_bounds = self.text_hitbox.bounds;
9413 let scroll_position = self.snapshot.scroll_position();
9414 let position = position - text_bounds.origin;
9415 let y = position.y.max(px(0.)).min(self.size.height);
9416 let x = position.x + (scroll_position.x * self.em_width);
9417 let row = ((y / self.line_height) + scroll_position.y) as u32;
9418
9419 let (column, x_overshoot_after_line_end) = if let Some(line) = self
9420 .line_layouts
9421 .get(row as usize - scroll_position.y as usize)
9422 {
9423 if let Some(ix) = line.index_for_x(x) {
9424 (ix as u32, px(0.))
9425 } else {
9426 (line.len as u32, px(0.).max(x - line.width))
9427 }
9428 } else {
9429 (0, x)
9430 };
9431
9432 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
9433 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
9434 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
9435
9436 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
9437 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
9438 PointForPosition {
9439 previous_valid,
9440 next_valid,
9441 exact_unclipped,
9442 column_overshoot_after_line_end,
9443 }
9444 }
9445}
9446
9447struct BlockLayout {
9448 id: BlockId,
9449 x_offset: Pixels,
9450 row: Option<DisplayRow>,
9451 element: AnyElement,
9452 available_space: Size<AvailableSpace>,
9453 style: BlockStyle,
9454 overlaps_gutter: bool,
9455 is_buffer_header: bool,
9456}
9457
9458pub fn layout_line(
9459 row: DisplayRow,
9460 snapshot: &EditorSnapshot,
9461 style: &EditorStyle,
9462 text_width: Pixels,
9463 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
9464 window: &mut Window,
9465 cx: &mut App,
9466) -> LineWithInvisibles {
9467 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
9468 LineWithInvisibles::from_chunks(
9469 chunks,
9470 &style,
9471 MAX_LINE_LEN,
9472 1,
9473 &snapshot.mode,
9474 text_width,
9475 is_row_soft_wrapped,
9476 window,
9477 cx,
9478 )
9479 .pop()
9480 .unwrap()
9481}
9482
9483#[derive(Debug)]
9484pub struct IndentGuideLayout {
9485 origin: gpui::Point<Pixels>,
9486 length: Pixels,
9487 single_indent_width: Pixels,
9488 depth: u32,
9489 active: bool,
9490 settings: IndentGuideSettings,
9491}
9492
9493pub struct CursorLayout {
9494 origin: gpui::Point<Pixels>,
9495 block_width: Pixels,
9496 line_height: Pixels,
9497 color: Hsla,
9498 shape: CursorShape,
9499 block_text: Option<ShapedLine>,
9500 cursor_name: Option<AnyElement>,
9501}
9502
9503#[derive(Debug)]
9504pub struct CursorName {
9505 string: SharedString,
9506 color: Hsla,
9507 is_top_row: bool,
9508}
9509
9510impl CursorLayout {
9511 pub fn new(
9512 origin: gpui::Point<Pixels>,
9513 block_width: Pixels,
9514 line_height: Pixels,
9515 color: Hsla,
9516 shape: CursorShape,
9517 block_text: Option<ShapedLine>,
9518 ) -> CursorLayout {
9519 CursorLayout {
9520 origin,
9521 block_width,
9522 line_height,
9523 color,
9524 shape,
9525 block_text,
9526 cursor_name: None,
9527 }
9528 }
9529
9530 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
9531 Bounds {
9532 origin: self.origin + origin,
9533 size: size(self.block_width, self.line_height),
9534 }
9535 }
9536
9537 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
9538 match self.shape {
9539 CursorShape::Bar => Bounds {
9540 origin: self.origin + origin,
9541 size: size(px(2.0), self.line_height),
9542 },
9543 CursorShape::Block | CursorShape::Hollow => Bounds {
9544 origin: self.origin + origin,
9545 size: size(self.block_width, self.line_height),
9546 },
9547 CursorShape::Underline => Bounds {
9548 origin: self.origin
9549 + origin
9550 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
9551 size: size(self.block_width, px(2.0)),
9552 },
9553 }
9554 }
9555
9556 pub fn layout(
9557 &mut self,
9558 origin: gpui::Point<Pixels>,
9559 cursor_name: Option<CursorName>,
9560 window: &mut Window,
9561 cx: &mut App,
9562 ) {
9563 if let Some(cursor_name) = cursor_name {
9564 let bounds = self.bounds(origin);
9565 let text_size = self.line_height / 1.5;
9566
9567 let name_origin = if cursor_name.is_top_row {
9568 point(bounds.right() - px(1.), bounds.top())
9569 } else {
9570 match self.shape {
9571 CursorShape::Bar => point(
9572 bounds.right() - px(2.),
9573 bounds.top() - text_size / 2. - px(1.),
9574 ),
9575 _ => point(
9576 bounds.right() - px(1.),
9577 bounds.top() - text_size / 2. - px(1.),
9578 ),
9579 }
9580 };
9581 let mut name_element = div()
9582 .bg(self.color)
9583 .text_size(text_size)
9584 .px_0p5()
9585 .line_height(text_size + px(2.))
9586 .text_color(cursor_name.color)
9587 .child(cursor_name.string.clone())
9588 .into_any_element();
9589
9590 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
9591
9592 self.cursor_name = Some(name_element);
9593 }
9594 }
9595
9596 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
9597 let bounds = self.bounds(origin);
9598
9599 //Draw background or border quad
9600 let cursor = if matches!(self.shape, CursorShape::Hollow) {
9601 outline(bounds, self.color, BorderStyle::Solid)
9602 } else {
9603 fill(bounds, self.color)
9604 };
9605
9606 if let Some(name) = &mut self.cursor_name {
9607 name.paint(window, cx);
9608 }
9609
9610 window.paint_quad(cursor);
9611
9612 if let Some(block_text) = &self.block_text {
9613 block_text
9614 .paint(self.origin + origin, self.line_height, window, cx)
9615 .log_err();
9616 }
9617 }
9618
9619 pub fn shape(&self) -> CursorShape {
9620 self.shape
9621 }
9622}
9623
9624#[derive(Debug)]
9625pub struct HighlightedRange {
9626 pub start_y: Pixels,
9627 pub line_height: Pixels,
9628 pub lines: Vec<HighlightedRangeLine>,
9629 pub color: Hsla,
9630 pub corner_radius: Pixels,
9631}
9632
9633#[derive(Debug)]
9634pub struct HighlightedRangeLine {
9635 pub start_x: Pixels,
9636 pub end_x: Pixels,
9637}
9638
9639impl HighlightedRange {
9640 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
9641 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
9642 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
9643 self.paint_lines(
9644 self.start_y + self.line_height,
9645 &self.lines[1..],
9646 bounds,
9647 window,
9648 );
9649 } else {
9650 self.paint_lines(self.start_y, &self.lines, bounds, window);
9651 }
9652 }
9653
9654 fn paint_lines(
9655 &self,
9656 start_y: Pixels,
9657 lines: &[HighlightedRangeLine],
9658 _bounds: Bounds<Pixels>,
9659 window: &mut Window,
9660 ) {
9661 if lines.is_empty() {
9662 return;
9663 }
9664
9665 let first_line = lines.first().unwrap();
9666 let last_line = lines.last().unwrap();
9667
9668 let first_top_left = point(first_line.start_x, start_y);
9669 let first_top_right = point(first_line.end_x, start_y);
9670
9671 let curve_height = point(Pixels::ZERO, self.corner_radius);
9672 let curve_width = |start_x: Pixels, end_x: Pixels| {
9673 let max = (end_x - start_x) / 2.;
9674 let width = if max < self.corner_radius {
9675 max
9676 } else {
9677 self.corner_radius
9678 };
9679
9680 point(width, Pixels::ZERO)
9681 };
9682
9683 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
9684 let mut builder = gpui::PathBuilder::fill();
9685 builder.move_to(first_top_right - top_curve_width);
9686 builder.curve_to(first_top_right + curve_height, first_top_right);
9687
9688 let mut iter = lines.iter().enumerate().peekable();
9689 while let Some((ix, line)) = iter.next() {
9690 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
9691
9692 if let Some((_, next_line)) = iter.peek() {
9693 let next_top_right = point(next_line.end_x, bottom_right.y);
9694
9695 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
9696 Ordering::Equal => {
9697 builder.line_to(bottom_right);
9698 }
9699 Ordering::Less => {
9700 let curve_width = curve_width(next_top_right.x, bottom_right.x);
9701 builder.line_to(bottom_right - curve_height);
9702 if self.corner_radius > Pixels::ZERO {
9703 builder.curve_to(bottom_right - curve_width, bottom_right);
9704 }
9705 builder.line_to(next_top_right + curve_width);
9706 if self.corner_radius > Pixels::ZERO {
9707 builder.curve_to(next_top_right + curve_height, next_top_right);
9708 }
9709 }
9710 Ordering::Greater => {
9711 let curve_width = curve_width(bottom_right.x, next_top_right.x);
9712 builder.line_to(bottom_right - curve_height);
9713 if self.corner_radius > Pixels::ZERO {
9714 builder.curve_to(bottom_right + curve_width, bottom_right);
9715 }
9716 builder.line_to(next_top_right - curve_width);
9717 if self.corner_radius > Pixels::ZERO {
9718 builder.curve_to(next_top_right + curve_height, next_top_right);
9719 }
9720 }
9721 }
9722 } else {
9723 let curve_width = curve_width(line.start_x, line.end_x);
9724 builder.line_to(bottom_right - curve_height);
9725 if self.corner_radius > Pixels::ZERO {
9726 builder.curve_to(bottom_right - curve_width, bottom_right);
9727 }
9728
9729 let bottom_left = point(line.start_x, bottom_right.y);
9730 builder.line_to(bottom_left + curve_width);
9731 if self.corner_radius > Pixels::ZERO {
9732 builder.curve_to(bottom_left - curve_height, bottom_left);
9733 }
9734 }
9735 }
9736
9737 if first_line.start_x > last_line.start_x {
9738 let curve_width = curve_width(last_line.start_x, first_line.start_x);
9739 let second_top_left = point(last_line.start_x, start_y + self.line_height);
9740 builder.line_to(second_top_left + curve_height);
9741 if self.corner_radius > Pixels::ZERO {
9742 builder.curve_to(second_top_left + curve_width, second_top_left);
9743 }
9744 let first_bottom_left = point(first_line.start_x, second_top_left.y);
9745 builder.line_to(first_bottom_left - curve_width);
9746 if self.corner_radius > Pixels::ZERO {
9747 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
9748 }
9749 }
9750
9751 builder.line_to(first_top_left + curve_height);
9752 if self.corner_radius > Pixels::ZERO {
9753 builder.curve_to(first_top_left + top_curve_width, first_top_left);
9754 }
9755 builder.line_to(first_top_right - top_curve_width);
9756
9757 if let Ok(path) = builder.build() {
9758 window.paint_path(path, self.color);
9759 }
9760 }
9761}
9762
9763enum CursorPopoverType {
9764 CodeContextMenu,
9765 EditPrediction,
9766}
9767
9768pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
9769 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
9770}
9771
9772fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
9773 (delta.pow(1.2) / 300.0).into()
9774}
9775
9776pub fn register_action<T: Action>(
9777 editor: &Entity<Editor>,
9778 window: &mut Window,
9779 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
9780) {
9781 let editor = editor.clone();
9782 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
9783 let action = action.downcast_ref().unwrap();
9784 if phase == DispatchPhase::Bubble {
9785 editor.update(cx, |editor, cx| {
9786 listener(editor, action, window, cx);
9787 })
9788 }
9789 })
9790}
9791
9792fn compute_auto_height_layout(
9793 editor: &mut Editor,
9794 max_lines: usize,
9795 max_line_number_width: Pixels,
9796 known_dimensions: Size<Option<Pixels>>,
9797 available_width: AvailableSpace,
9798 window: &mut Window,
9799 cx: &mut Context<Editor>,
9800) -> Option<Size<Pixels>> {
9801 let width = known_dimensions.width.or({
9802 if let AvailableSpace::Definite(available_width) = available_width {
9803 Some(available_width)
9804 } else {
9805 None
9806 }
9807 })?;
9808 if let Some(height) = known_dimensions.height {
9809 return Some(size(width, height));
9810 }
9811
9812 let style = editor.style.as_ref().unwrap();
9813 let font_id = window.text_system().resolve_font(&style.text.font());
9814 let font_size = style.text.font_size.to_pixels(window.rem_size());
9815 let line_height = style.text.line_height_in_pixels(window.rem_size());
9816 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
9817
9818 let mut snapshot = editor.snapshot(window, cx);
9819 let gutter_dimensions = snapshot
9820 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
9821 .or_else(|| {
9822 editor
9823 .offset_content
9824 .then(|| GutterDimensions::default_with_margin(font_id, font_size, cx))
9825 })
9826 .unwrap_or_default();
9827
9828 editor.gutter_dimensions = gutter_dimensions;
9829 let text_width = width - gutter_dimensions.width;
9830 let overscroll = size(em_width, px(0.));
9831
9832 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
9833 if !matches!(editor.soft_wrap_mode(cx), SoftWrap::None) {
9834 if editor.set_wrap_width(Some(editor_width), cx) {
9835 snapshot = editor.snapshot(window, cx);
9836 }
9837 }
9838
9839 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
9840 let height = scroll_height
9841 .max(line_height)
9842 .min(line_height * max_lines as f32);
9843
9844 Some(size(width, height))
9845}
9846
9847#[cfg(test)]
9848mod tests {
9849 use super::*;
9850 use crate::{
9851 Editor, MultiBuffer,
9852 display_map::{BlockPlacement, BlockProperties},
9853 editor_tests::{init_test, update_test_language_settings},
9854 };
9855 use gpui::{TestAppContext, VisualTestContext};
9856 use language::language_settings;
9857 use log::info;
9858 use std::num::NonZeroU32;
9859 use util::test::sample_text;
9860
9861 #[gpui::test]
9862 fn test_shape_line_numbers(cx: &mut TestAppContext) {
9863 init_test(cx, |_| {});
9864 let window = cx.add_window(|window, cx| {
9865 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
9866 Editor::new(EditorMode::full(), buffer, None, window, cx)
9867 });
9868
9869 let editor = window.root(cx).unwrap();
9870 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
9871 let line_height = window
9872 .update(cx, |_, window, _| {
9873 style.text.line_height_in_pixels(window.rem_size())
9874 })
9875 .unwrap();
9876 let element = EditorElement::new(&editor, style);
9877 let snapshot = window
9878 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
9879 .unwrap();
9880
9881 let layouts = cx
9882 .update_window(*window, |_, window, cx| {
9883 element.layout_line_numbers(
9884 None,
9885 GutterDimensions {
9886 left_padding: Pixels::ZERO,
9887 right_padding: Pixels::ZERO,
9888 width: px(30.0),
9889 margin: Pixels::ZERO,
9890 git_blame_entries_width: None,
9891 },
9892 line_height,
9893 gpui::Point::default(),
9894 DisplayRow(0)..DisplayRow(6),
9895 &(0..6)
9896 .map(|row| RowInfo {
9897 buffer_row: Some(row),
9898 ..Default::default()
9899 })
9900 .collect::<Vec<_>>(),
9901 &BTreeMap::default(),
9902 Some(DisplayPoint::new(DisplayRow(0), 0)),
9903 &snapshot,
9904 window,
9905 cx,
9906 )
9907 })
9908 .unwrap();
9909 assert_eq!(layouts.len(), 6);
9910
9911 let relative_rows = window
9912 .update(cx, |editor, window, cx| {
9913 let snapshot = editor.snapshot(window, cx);
9914 element.calculate_relative_line_numbers(
9915 &snapshot,
9916 &(DisplayRow(0)..DisplayRow(6)),
9917 Some(DisplayRow(3)),
9918 )
9919 })
9920 .unwrap();
9921 assert_eq!(relative_rows[&DisplayRow(0)], 3);
9922 assert_eq!(relative_rows[&DisplayRow(1)], 2);
9923 assert_eq!(relative_rows[&DisplayRow(2)], 1);
9924 // current line has no relative number
9925 assert_eq!(relative_rows[&DisplayRow(4)], 1);
9926 assert_eq!(relative_rows[&DisplayRow(5)], 2);
9927
9928 // works if cursor is before screen
9929 let relative_rows = window
9930 .update(cx, |editor, window, cx| {
9931 let snapshot = editor.snapshot(window, cx);
9932 element.calculate_relative_line_numbers(
9933 &snapshot,
9934 &(DisplayRow(3)..DisplayRow(6)),
9935 Some(DisplayRow(1)),
9936 )
9937 })
9938 .unwrap();
9939 assert_eq!(relative_rows.len(), 3);
9940 assert_eq!(relative_rows[&DisplayRow(3)], 2);
9941 assert_eq!(relative_rows[&DisplayRow(4)], 3);
9942 assert_eq!(relative_rows[&DisplayRow(5)], 4);
9943
9944 // works if cursor is after screen
9945 let relative_rows = window
9946 .update(cx, |editor, window, cx| {
9947 let snapshot = editor.snapshot(window, cx);
9948 element.calculate_relative_line_numbers(
9949 &snapshot,
9950 &(DisplayRow(0)..DisplayRow(3)),
9951 Some(DisplayRow(6)),
9952 )
9953 })
9954 .unwrap();
9955 assert_eq!(relative_rows.len(), 3);
9956 assert_eq!(relative_rows[&DisplayRow(0)], 5);
9957 assert_eq!(relative_rows[&DisplayRow(1)], 4);
9958 assert_eq!(relative_rows[&DisplayRow(2)], 3);
9959 }
9960
9961 #[gpui::test]
9962 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
9963 init_test(cx, |_| {});
9964
9965 let window = cx.add_window(|window, cx| {
9966 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
9967 Editor::new(EditorMode::full(), buffer, None, window, cx)
9968 });
9969 let cx = &mut VisualTestContext::from_window(*window, cx);
9970 let editor = window.root(cx).unwrap();
9971 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
9972
9973 window
9974 .update(cx, |editor, window, cx| {
9975 editor.cursor_shape = CursorShape::Block;
9976 editor.change_selections(None, window, cx, |s| {
9977 s.select_ranges([
9978 Point::new(0, 0)..Point::new(1, 0),
9979 Point::new(3, 2)..Point::new(3, 3),
9980 Point::new(5, 6)..Point::new(6, 0),
9981 ]);
9982 });
9983 })
9984 .unwrap();
9985
9986 let (_, state) = cx.draw(
9987 point(px(500.), px(500.)),
9988 size(px(500.), px(500.)),
9989 |_, _| EditorElement::new(&editor, style),
9990 );
9991
9992 assert_eq!(state.selections.len(), 1);
9993 let local_selections = &state.selections[0].1;
9994 assert_eq!(local_selections.len(), 3);
9995 // moves cursor back one line
9996 assert_eq!(
9997 local_selections[0].head,
9998 DisplayPoint::new(DisplayRow(0), 6)
9999 );
10000 assert_eq!(
10001 local_selections[0].range,
10002 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
10003 );
10004
10005 // moves cursor back one column
10006 assert_eq!(
10007 local_selections[1].range,
10008 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
10009 );
10010 assert_eq!(
10011 local_selections[1].head,
10012 DisplayPoint::new(DisplayRow(3), 2)
10013 );
10014
10015 // leaves cursor on the max point
10016 assert_eq!(
10017 local_selections[2].range,
10018 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
10019 );
10020 assert_eq!(
10021 local_selections[2].head,
10022 DisplayPoint::new(DisplayRow(6), 0)
10023 );
10024
10025 // active lines does not include 1 (even though the range of the selection does)
10026 assert_eq!(
10027 state.active_rows.keys().cloned().collect::<Vec<_>>(),
10028 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
10029 );
10030 }
10031
10032 #[gpui::test]
10033 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
10034 init_test(cx, |_| {});
10035
10036 let window = cx.add_window(|window, cx| {
10037 let buffer = MultiBuffer::build_simple("", cx);
10038 Editor::new(EditorMode::full(), buffer, None, window, cx)
10039 });
10040 let cx = &mut VisualTestContext::from_window(*window, cx);
10041 let editor = window.root(cx).unwrap();
10042 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10043 window
10044 .update(cx, |editor, window, cx| {
10045 editor.set_placeholder_text("hello", cx);
10046 editor.insert_blocks(
10047 [BlockProperties {
10048 style: BlockStyle::Fixed,
10049 placement: BlockPlacement::Above(Anchor::min()),
10050 height: Some(3),
10051 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
10052 priority: 0,
10053 render_in_minimap: true,
10054 }],
10055 None,
10056 cx,
10057 );
10058
10059 // Blur the editor so that it displays placeholder text.
10060 window.blur();
10061 })
10062 .unwrap();
10063
10064 let (_, state) = cx.draw(
10065 point(px(500.), px(500.)),
10066 size(px(500.), px(500.)),
10067 |_, _| EditorElement::new(&editor, style),
10068 );
10069 assert_eq!(state.position_map.line_layouts.len(), 4);
10070 assert_eq!(state.line_numbers.len(), 1);
10071 assert_eq!(
10072 state
10073 .line_numbers
10074 .get(&MultiBufferRow(0))
10075 .map(|line_number| line_number.shaped_line.text.as_ref()),
10076 Some("1")
10077 );
10078 }
10079
10080 #[gpui::test]
10081 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
10082 const TAB_SIZE: u32 = 4;
10083
10084 let input_text = "\t \t|\t| a b";
10085 let expected_invisibles = vec![
10086 Invisible::Tab {
10087 line_start_offset: 0,
10088 line_end_offset: TAB_SIZE as usize,
10089 },
10090 Invisible::Whitespace {
10091 line_offset: TAB_SIZE as usize,
10092 },
10093 Invisible::Tab {
10094 line_start_offset: TAB_SIZE as usize + 1,
10095 line_end_offset: TAB_SIZE as usize * 2,
10096 },
10097 Invisible::Tab {
10098 line_start_offset: TAB_SIZE as usize * 2 + 1,
10099 line_end_offset: TAB_SIZE as usize * 3,
10100 },
10101 Invisible::Whitespace {
10102 line_offset: TAB_SIZE as usize * 3 + 1,
10103 },
10104 Invisible::Whitespace {
10105 line_offset: TAB_SIZE as usize * 3 + 3,
10106 },
10107 ];
10108 assert_eq!(
10109 expected_invisibles.len(),
10110 input_text
10111 .chars()
10112 .filter(|initial_char| initial_char.is_whitespace())
10113 .count(),
10114 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
10115 );
10116
10117 for show_line_numbers in [true, false] {
10118 init_test(cx, |s| {
10119 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10120 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
10121 });
10122
10123 let actual_invisibles = collect_invisibles_from_new_editor(
10124 cx,
10125 EditorMode::full(),
10126 input_text,
10127 px(500.0),
10128 show_line_numbers,
10129 );
10130
10131 assert_eq!(expected_invisibles, actual_invisibles);
10132 }
10133 }
10134
10135 #[gpui::test]
10136 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
10137 init_test(cx, |s| {
10138 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10139 s.defaults.tab_size = NonZeroU32::new(4);
10140 });
10141
10142 for editor_mode_without_invisibles in [
10143 EditorMode::SingleLine { auto_width: false },
10144 EditorMode::AutoHeight { max_lines: 100 },
10145 ] {
10146 for show_line_numbers in [true, false] {
10147 let invisibles = collect_invisibles_from_new_editor(
10148 cx,
10149 editor_mode_without_invisibles.clone(),
10150 "\t\t\t| | a b",
10151 px(500.0),
10152 show_line_numbers,
10153 );
10154 assert!(
10155 invisibles.is_empty(),
10156 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
10157 );
10158 }
10159 }
10160 }
10161
10162 #[gpui::test]
10163 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
10164 let tab_size = 4;
10165 let input_text = "a\tbcd ".repeat(9);
10166 let repeated_invisibles = [
10167 Invisible::Tab {
10168 line_start_offset: 1,
10169 line_end_offset: tab_size as usize,
10170 },
10171 Invisible::Whitespace {
10172 line_offset: tab_size as usize + 3,
10173 },
10174 Invisible::Whitespace {
10175 line_offset: tab_size as usize + 4,
10176 },
10177 Invisible::Whitespace {
10178 line_offset: tab_size as usize + 5,
10179 },
10180 Invisible::Whitespace {
10181 line_offset: tab_size as usize + 6,
10182 },
10183 Invisible::Whitespace {
10184 line_offset: tab_size as usize + 7,
10185 },
10186 ];
10187 let expected_invisibles = std::iter::once(repeated_invisibles)
10188 .cycle()
10189 .take(9)
10190 .flatten()
10191 .collect::<Vec<_>>();
10192 assert_eq!(
10193 expected_invisibles.len(),
10194 input_text
10195 .chars()
10196 .filter(|initial_char| initial_char.is_whitespace())
10197 .count(),
10198 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
10199 );
10200 info!("Expected invisibles: {expected_invisibles:?}");
10201
10202 init_test(cx, |_| {});
10203
10204 // Put the same string with repeating whitespace pattern into editors of various size,
10205 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
10206 let resize_step = 10.0;
10207 let mut editor_width = 200.0;
10208 while editor_width <= 1000.0 {
10209 for show_line_numbers in [true, false] {
10210 update_test_language_settings(cx, |s| {
10211 s.defaults.tab_size = NonZeroU32::new(tab_size);
10212 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10213 s.defaults.preferred_line_length = Some(editor_width as u32);
10214 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
10215 });
10216
10217 let actual_invisibles = collect_invisibles_from_new_editor(
10218 cx,
10219 EditorMode::full(),
10220 &input_text,
10221 px(editor_width),
10222 show_line_numbers,
10223 );
10224
10225 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
10226 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
10227 let mut i = 0;
10228 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
10229 i = actual_index;
10230 match expected_invisibles.get(i) {
10231 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
10232 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
10233 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
10234 _ => {
10235 panic!(
10236 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
10237 )
10238 }
10239 },
10240 None => {
10241 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
10242 }
10243 }
10244 }
10245 let missing_expected_invisibles = &expected_invisibles[i + 1..];
10246 assert!(
10247 missing_expected_invisibles.is_empty(),
10248 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
10249 );
10250
10251 editor_width += resize_step;
10252 }
10253 }
10254 }
10255
10256 fn collect_invisibles_from_new_editor(
10257 cx: &mut TestAppContext,
10258 editor_mode: EditorMode,
10259 input_text: &str,
10260 editor_width: Pixels,
10261 show_line_numbers: bool,
10262 ) -> Vec<Invisible> {
10263 info!(
10264 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
10265 editor_width.0
10266 );
10267 let window = cx.add_window(|window, cx| {
10268 let buffer = MultiBuffer::build_simple(input_text, cx);
10269 Editor::new(editor_mode, buffer, None, window, cx)
10270 });
10271 let cx = &mut VisualTestContext::from_window(*window, cx);
10272 let editor = window.root(cx).unwrap();
10273
10274 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10275 window
10276 .update(cx, |editor, _, cx| {
10277 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
10278 editor.set_wrap_width(Some(editor_width), cx);
10279 editor.set_show_line_numbers(show_line_numbers, cx);
10280 })
10281 .unwrap();
10282 let (_, state) = cx.draw(
10283 point(px(500.), px(500.)),
10284 size(px(500.), px(500.)),
10285 |_, _| EditorElement::new(&editor, style),
10286 );
10287 state
10288 .position_map
10289 .line_layouts
10290 .iter()
10291 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
10292 .cloned()
10293 .collect()
10294 }
10295}