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