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