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