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