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 let breakpoint_indicator = 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 as_point = text::ToPoint::to_point(&buffer_anchor.text_anchor, buffer_snapshot);
1049
1050 let is_visible = editor
1051 .gutter_breakpoint_indicator
1052 .0
1053 .map_or(false, |indicator| indicator.is_active);
1054
1055 let has_existing_breakpoint =
1056 editor.breakpoint_store.as_ref().map_or(false, |store| {
1057 let Some(project) = &editor.project else {
1058 return false;
1059 };
1060 let Some(abs_path) = project.read(cx).absolute_path(
1061 &ProjectPath {
1062 path: file.path().clone(),
1063 worktree_id: file.worktree_id(cx),
1064 },
1065 cx,
1066 ) else {
1067 return false;
1068 };
1069 store
1070 .read(cx)
1071 .breakpoint_at_row(&abs_path, as_point.row, cx)
1072 .is_some()
1073 });
1074
1075 if !is_visible {
1076 editor.gutter_breakpoint_indicator.1.get_or_insert_with(|| {
1077 cx.spawn(async move |this, cx| {
1078 cx.background_executor()
1079 .timer(Duration::from_millis(200))
1080 .await;
1081
1082 this.update(cx, |this, cx| {
1083 if let Some(indicator) = this.gutter_breakpoint_indicator.0.as_mut()
1084 {
1085 indicator.is_active = true;
1086 cx.notify();
1087 }
1088 })
1089 .ok();
1090 })
1091 });
1092 }
1093
1094 Some(PhantomBreakpointIndicator {
1095 display_row: new_point.row(),
1096 is_active: is_visible,
1097 collides_with_existing_breakpoint: has_existing_breakpoint,
1098 })
1099 } else {
1100 editor.gutter_breakpoint_indicator.1 = None;
1101 None
1102 }
1103 } else {
1104 editor.gutter_breakpoint_indicator.1 = None;
1105 None
1106 };
1107
1108 if &breakpoint_indicator != &editor.gutter_breakpoint_indicator.0 {
1109 editor.gutter_breakpoint_indicator.0 = breakpoint_indicator;
1110 cx.notify();
1111 }
1112
1113 // Don't trigger hover popover if mouse is hovering over context menu
1114 if text_hitbox.is_hovered(window) {
1115 let point_for_position = position_map.point_for_position(event.position);
1116
1117 editor.update_hovered_link(
1118 point_for_position,
1119 &position_map.snapshot,
1120 modifiers,
1121 window,
1122 cx,
1123 );
1124
1125 if let Some(point) = point_for_position.as_valid() {
1126 let anchor = position_map
1127 .snapshot
1128 .buffer_snapshot
1129 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
1130 hover_at(editor, Some(anchor), window, cx);
1131 Self::update_visible_cursor(editor, point, position_map, window, cx);
1132 } else {
1133 hover_at(editor, None, window, cx);
1134 }
1135 } else {
1136 editor.hide_hovered_link(cx);
1137 hover_at(editor, None, window, cx);
1138 }
1139 }
1140
1141 fn update_visible_cursor(
1142 editor: &mut Editor,
1143 point: DisplayPoint,
1144 position_map: &PositionMap,
1145 window: &mut Window,
1146 cx: &mut Context<Editor>,
1147 ) {
1148 let snapshot = &position_map.snapshot;
1149 let Some(hub) = editor.collaboration_hub() else {
1150 return;
1151 };
1152 let start = snapshot.display_snapshot.clip_point(
1153 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
1154 Bias::Left,
1155 );
1156 let end = snapshot.display_snapshot.clip_point(
1157 DisplayPoint::new(
1158 point.row(),
1159 (point.column() + 1).min(snapshot.line_len(point.row())),
1160 ),
1161 Bias::Right,
1162 );
1163
1164 let range = snapshot
1165 .buffer_snapshot
1166 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
1167 ..snapshot
1168 .buffer_snapshot
1169 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
1170
1171 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
1172 return;
1173 };
1174 let key = crate::HoveredCursor {
1175 replica_id: selection.replica_id,
1176 selection_id: selection.selection.id,
1177 };
1178 editor.hovered_cursors.insert(
1179 key.clone(),
1180 cx.spawn_in(window, async move |editor, cx| {
1181 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
1182 editor
1183 .update(cx, |editor, cx| {
1184 editor.hovered_cursors.remove(&key);
1185 cx.notify();
1186 })
1187 .ok();
1188 }),
1189 );
1190 cx.notify()
1191 }
1192
1193 fn layout_selections(
1194 &self,
1195 start_anchor: Anchor,
1196 end_anchor: Anchor,
1197 local_selections: &[Selection<Point>],
1198 snapshot: &EditorSnapshot,
1199 start_row: DisplayRow,
1200 end_row: DisplayRow,
1201 window: &mut Window,
1202 cx: &mut App,
1203 ) -> (
1204 Vec<(PlayerColor, Vec<SelectionLayout>)>,
1205 BTreeMap<DisplayRow, LineHighlightSpec>,
1206 Option<DisplayPoint>,
1207 ) {
1208 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1209 let mut active_rows = BTreeMap::new();
1210 let mut newest_selection_head = None;
1211
1212 let Some(editor_with_selections) = self.editor_with_selections(cx) else {
1213 return (selections, active_rows, newest_selection_head);
1214 };
1215
1216 editor_with_selections.update(cx, |editor, cx| {
1217 if editor.show_local_selections {
1218 let mut layouts = Vec::new();
1219 let newest = editor.selections.newest(cx);
1220 for selection in local_selections.iter().cloned() {
1221 let is_empty = selection.start == selection.end;
1222 let is_newest = selection == newest;
1223
1224 let layout = SelectionLayout::new(
1225 selection,
1226 editor.selections.line_mode,
1227 editor.cursor_shape,
1228 &snapshot.display_snapshot,
1229 is_newest,
1230 editor.leader_id.is_none(),
1231 None,
1232 );
1233 if is_newest {
1234 newest_selection_head = Some(layout.head);
1235 }
1236
1237 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1238 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1239 {
1240 let contains_non_empty_selection = active_rows
1241 .entry(DisplayRow(row))
1242 .or_insert_with(LineHighlightSpec::default);
1243 contains_non_empty_selection.selection |= !is_empty;
1244 }
1245 layouts.push(layout);
1246 }
1247
1248 let player = editor.current_user_player_color(cx);
1249 selections.push((player, layouts));
1250
1251 if let SelectionDragState::Dragging {
1252 ref selection,
1253 ref drop_cursor,
1254 } = editor.selection_drag_state
1255 {
1256 if drop_cursor
1257 .start
1258 .cmp(&selection.start, &snapshot.buffer_snapshot)
1259 .eq(&Ordering::Less)
1260 || drop_cursor
1261 .end
1262 .cmp(&selection.end, &snapshot.buffer_snapshot)
1263 .eq(&Ordering::Greater)
1264 {
1265 let drag_cursor_layout = SelectionLayout::new(
1266 drop_cursor.clone(),
1267 false,
1268 CursorShape::Bar,
1269 &snapshot.display_snapshot,
1270 false,
1271 false,
1272 None,
1273 );
1274 let absent_color = cx.theme().players().absent();
1275 selections.push((absent_color, vec![drag_cursor_layout]));
1276 }
1277 }
1278 }
1279
1280 if let Some(collaboration_hub) = &editor.collaboration_hub {
1281 // When following someone, render the local selections in their color.
1282 if let Some(leader_id) = editor.leader_id {
1283 match leader_id {
1284 CollaboratorId::PeerId(peer_id) => {
1285 if let Some(collaborator) =
1286 collaboration_hub.collaborators(cx).get(&peer_id)
1287 {
1288 if let Some(participant_index) = collaboration_hub
1289 .user_participant_indices(cx)
1290 .get(&collaborator.user_id)
1291 {
1292 if let Some((local_selection_style, _)) = selections.first_mut()
1293 {
1294 *local_selection_style = cx
1295 .theme()
1296 .players()
1297 .color_for_participant(participant_index.0);
1298 }
1299 }
1300 }
1301 }
1302 CollaboratorId::Agent => {
1303 if let Some((local_selection_style, _)) = selections.first_mut() {
1304 *local_selection_style = cx.theme().players().agent();
1305 }
1306 }
1307 }
1308 }
1309
1310 let mut remote_selections = HashMap::default();
1311 for selection in snapshot.remote_selections_in_range(
1312 &(start_anchor..end_anchor),
1313 collaboration_hub.as_ref(),
1314 cx,
1315 ) {
1316 // Don't re-render the leader's selections, since the local selections
1317 // match theirs.
1318 if Some(selection.collaborator_id) == editor.leader_id {
1319 continue;
1320 }
1321 let key = HoveredCursor {
1322 replica_id: selection.replica_id,
1323 selection_id: selection.selection.id,
1324 };
1325
1326 let is_shown =
1327 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1328
1329 remote_selections
1330 .entry(selection.replica_id)
1331 .or_insert((selection.color, Vec::new()))
1332 .1
1333 .push(SelectionLayout::new(
1334 selection.selection,
1335 selection.line_mode,
1336 selection.cursor_shape,
1337 &snapshot.display_snapshot,
1338 false,
1339 false,
1340 if is_shown { selection.user_name } else { None },
1341 ));
1342 }
1343
1344 selections.extend(remote_selections.into_values());
1345 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1346 let layouts = snapshot
1347 .buffer_snapshot
1348 .selections_in_range(&(start_anchor..end_anchor), true)
1349 .map(move |(_, line_mode, cursor_shape, selection)| {
1350 SelectionLayout::new(
1351 selection,
1352 line_mode,
1353 cursor_shape,
1354 &snapshot.display_snapshot,
1355 false,
1356 false,
1357 None,
1358 )
1359 })
1360 .collect::<Vec<_>>();
1361 let player = editor.current_user_player_color(cx);
1362 selections.push((player, layouts));
1363 }
1364 });
1365 (selections, active_rows, newest_selection_head)
1366 }
1367
1368 fn collect_cursors(
1369 &self,
1370 snapshot: &EditorSnapshot,
1371 cx: &mut App,
1372 ) -> Vec<(DisplayPoint, Hsla)> {
1373 let editor = self.editor.read(cx);
1374 let mut cursors = Vec::new();
1375 let mut skip_local = false;
1376 let mut add_cursor = |anchor: Anchor, color| {
1377 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1378 };
1379 // Remote cursors
1380 if let Some(collaboration_hub) = &editor.collaboration_hub {
1381 for remote_selection in snapshot.remote_selections_in_range(
1382 &(Anchor::min()..Anchor::max()),
1383 collaboration_hub.deref(),
1384 cx,
1385 ) {
1386 add_cursor(
1387 remote_selection.selection.head(),
1388 remote_selection.color.cursor,
1389 );
1390 if Some(remote_selection.collaborator_id) == editor.leader_id {
1391 skip_local = true;
1392 }
1393 }
1394 }
1395 // Local cursors
1396 if !skip_local {
1397 let color = cx.theme().players().local().cursor;
1398 editor.selections.disjoint.iter().for_each(|selection| {
1399 add_cursor(selection.head(), color);
1400 });
1401 if let Some(ref selection) = editor.selections.pending_anchor() {
1402 add_cursor(selection.head(), color);
1403 }
1404 }
1405 cursors
1406 }
1407
1408 fn layout_visible_cursors(
1409 &self,
1410 snapshot: &EditorSnapshot,
1411 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1412 row_block_types: &HashMap<DisplayRow, bool>,
1413 visible_display_row_range: Range<DisplayRow>,
1414 line_layouts: &[LineWithInvisibles],
1415 text_hitbox: &Hitbox,
1416 content_origin: gpui::Point<Pixels>,
1417 scroll_position: gpui::Point<f32>,
1418 scroll_pixel_position: gpui::Point<Pixels>,
1419 line_height: Pixels,
1420 em_width: Pixels,
1421 em_advance: Pixels,
1422 autoscroll_containing_element: bool,
1423 window: &mut Window,
1424 cx: &mut App,
1425 ) -> Vec<CursorLayout> {
1426 let mut autoscroll_bounds = None;
1427 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1428 let mut cursors = Vec::new();
1429
1430 let show_local_cursors = editor.show_local_cursors(window, cx);
1431
1432 for (player_color, selections) in selections {
1433 for selection in selections {
1434 let cursor_position = selection.head;
1435
1436 let in_range = visible_display_row_range.contains(&cursor_position.row());
1437 if (selection.is_local && !show_local_cursors)
1438 || !in_range
1439 || row_block_types.get(&cursor_position.row()) == Some(&true)
1440 {
1441 continue;
1442 }
1443
1444 let cursor_row_layout = &line_layouts
1445 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1446 let cursor_column = cursor_position.column() as usize;
1447
1448 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1449 let mut block_width =
1450 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1451 if block_width == Pixels::ZERO {
1452 block_width = em_advance;
1453 }
1454 let block_text = if let CursorShape::Block = selection.cursor_shape {
1455 snapshot
1456 .grapheme_at(cursor_position)
1457 .or_else(|| {
1458 if cursor_column == 0 {
1459 snapshot.placeholder_text().and_then(|s| {
1460 s.graphemes(true).next().map(|s| s.to_string().into())
1461 })
1462 } else {
1463 None
1464 }
1465 })
1466 .map(|text| {
1467 let len = text.len();
1468
1469 let font = cursor_row_layout
1470 .font_id_for_index(cursor_column)
1471 .and_then(|cursor_font_id| {
1472 window.text_system().get_font_for_id(cursor_font_id)
1473 })
1474 .unwrap_or(self.style.text.font());
1475
1476 // Invert the text color for the block cursor. Ensure that the text
1477 // color is opaque enough to be visible against the background color.
1478 //
1479 // 0.75 is an arbitrary threshold to determine if the background color is
1480 // opaque enough to use as a text color.
1481 //
1482 // TODO: In the future we should ensure themes have a `text_inverse` color.
1483 let color = if cx.theme().colors().editor_background.a < 0.75 {
1484 match cx.theme().appearance {
1485 Appearance::Dark => Hsla::black(),
1486 Appearance::Light => Hsla::white(),
1487 }
1488 } else {
1489 cx.theme().colors().editor_background
1490 };
1491
1492 window.text_system().shape_line(
1493 text,
1494 cursor_row_layout.font_size,
1495 &[TextRun {
1496 len,
1497 font,
1498 color,
1499 background_color: None,
1500 strikethrough: None,
1501 underline: None,
1502 }],
1503 )
1504 })
1505 } else {
1506 None
1507 };
1508
1509 let x = cursor_character_x - scroll_pixel_position.x;
1510 let y = (cursor_position.row().as_f32()
1511 - scroll_pixel_position.y / line_height)
1512 * line_height;
1513 if selection.is_newest {
1514 editor.pixel_position_of_newest_cursor = Some(point(
1515 text_hitbox.origin.x + x + block_width / 2.,
1516 text_hitbox.origin.y + y + line_height / 2.,
1517 ));
1518
1519 if autoscroll_containing_element {
1520 let top = text_hitbox.origin.y
1521 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1522 * line_height;
1523 let left = text_hitbox.origin.x
1524 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1525 .max(0.)
1526 * em_width;
1527
1528 let bottom = text_hitbox.origin.y
1529 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1530 * line_height;
1531 let right = text_hitbox.origin.x
1532 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1533 * em_width;
1534
1535 autoscroll_bounds =
1536 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1537 }
1538 }
1539
1540 let mut cursor = CursorLayout {
1541 color: player_color.cursor,
1542 block_width,
1543 origin: point(x, y),
1544 line_height,
1545 shape: selection.cursor_shape,
1546 block_text,
1547 cursor_name: None,
1548 };
1549 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1550 string: name,
1551 color: self.style.background,
1552 is_top_row: cursor_position.row().0 == 0,
1553 });
1554 cursor.layout(content_origin, cursor_name, window, cx);
1555 cursors.push(cursor);
1556 }
1557 }
1558
1559 cursors
1560 });
1561
1562 if let Some(bounds) = autoscroll_bounds {
1563 window.request_autoscroll(bounds);
1564 }
1565
1566 cursor_layouts
1567 }
1568
1569 fn layout_scrollbars(
1570 &self,
1571 snapshot: &EditorSnapshot,
1572 scrollbar_layout_information: &ScrollbarLayoutInformation,
1573 content_offset: gpui::Point<Pixels>,
1574 scroll_position: gpui::Point<f32>,
1575 non_visible_cursors: bool,
1576 right_margin: Pixels,
1577 editor_width: Pixels,
1578 window: &mut Window,
1579 cx: &mut App,
1580 ) -> Option<EditorScrollbars> {
1581 let show_scrollbars = self.editor.read(cx).show_scrollbars;
1582 if (!show_scrollbars.horizontal && !show_scrollbars.vertical)
1583 || self.style.scrollbar_width.is_zero()
1584 {
1585 return None;
1586 }
1587
1588 // If a drag took place after we started dragging the scrollbar,
1589 // cancel the scrollbar drag.
1590 if cx.has_active_drag() {
1591 self.editor.update(cx, |editor, cx| {
1592 editor.scroll_manager.reset_scrollbar_state(cx)
1593 });
1594 }
1595
1596 let editor_settings = EditorSettings::get_global(cx);
1597 let scrollbar_settings = editor_settings.scrollbar;
1598 let show_scrollbars = match scrollbar_settings.show {
1599 ShowScrollbar::Auto => {
1600 let editor = self.editor.read(cx);
1601 let is_singleton = editor.is_singleton(cx);
1602 // Git
1603 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1604 ||
1605 // Buffer Search Results
1606 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1607 ||
1608 // Selected Text Occurrences
1609 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1610 ||
1611 // Selected Symbol Occurrences
1612 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1613 ||
1614 // Diagnostics
1615 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1616 ||
1617 // Cursors out of sight
1618 non_visible_cursors
1619 ||
1620 // Scrollmanager
1621 editor.scroll_manager.scrollbars_visible()
1622 }
1623 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1624 ShowScrollbar::Always => true,
1625 ShowScrollbar::Never => return None,
1626 };
1627
1628 // The horizontal scrollbar is usually slightly offset to align nicely with
1629 // indent guides. However, this offset is not needed if indent guides are
1630 // disabled for the current editor.
1631 let content_offset = self
1632 .editor
1633 .read(cx)
1634 .show_indent_guides
1635 .is_none_or(|should_show| should_show)
1636 .then_some(content_offset)
1637 .unwrap_or_default();
1638
1639 Some(EditorScrollbars::from_scrollbar_axes(
1640 ScrollbarAxes {
1641 horizontal: scrollbar_settings.axes.horizontal
1642 && self.editor.read(cx).show_scrollbars.horizontal,
1643 vertical: scrollbar_settings.axes.vertical
1644 && self.editor.read(cx).show_scrollbars.vertical,
1645 },
1646 scrollbar_layout_information,
1647 content_offset,
1648 scroll_position,
1649 self.style.scrollbar_width,
1650 right_margin,
1651 editor_width,
1652 show_scrollbars,
1653 self.editor.read(cx).scroll_manager.active_scrollbar_state(),
1654 window,
1655 ))
1656 }
1657
1658 fn layout_minimap(
1659 &self,
1660 snapshot: &EditorSnapshot,
1661 minimap_width: Pixels,
1662 scroll_position: gpui::Point<f32>,
1663 scrollbar_layout_information: &ScrollbarLayoutInformation,
1664 scrollbar_layout: Option<&EditorScrollbars>,
1665 window: &mut Window,
1666 cx: &mut App,
1667 ) -> Option<MinimapLayout> {
1668 let minimap_editor = self.editor.read(cx).minimap().cloned()?;
1669
1670 let minimap_settings = EditorSettings::get_global(cx).minimap;
1671
1672 if !snapshot.mode.is_full()
1673 || minimap_width.is_zero()
1674 || matches!(
1675 minimap_settings.show,
1676 ShowMinimap::Auto if scrollbar_layout.is_none_or(|layout| !layout.visible)
1677 )
1678 {
1679 return None;
1680 }
1681
1682 const MINIMAP_AXIS: ScrollbarAxis = ScrollbarAxis::Vertical;
1683
1684 let ScrollbarLayoutInformation {
1685 editor_bounds,
1686 scroll_range,
1687 glyph_grid_cell,
1688 } = scrollbar_layout_information;
1689
1690 let line_height = glyph_grid_cell.height;
1691 let scroll_position = scroll_position.along(MINIMAP_AXIS);
1692
1693 let top_right_anchor = scrollbar_layout
1694 .and_then(|layout| layout.vertical.as_ref())
1695 .map(|vertical_scrollbar| vertical_scrollbar.hitbox.origin)
1696 .unwrap_or_else(|| editor_bounds.top_right());
1697
1698 let thumb_state = self
1699 .editor
1700 .read_with(cx, |editor, _| editor.scroll_manager.minimap_thumb_state());
1701
1702 let show_thumb = match minimap_settings.thumb {
1703 MinimapThumb::Always => true,
1704 MinimapThumb::Hover => thumb_state.is_some(),
1705 };
1706
1707 let minimap_bounds = Bounds::from_corner_and_size(
1708 Corner::TopRight,
1709 top_right_anchor,
1710 size(minimap_width, editor_bounds.size.height),
1711 );
1712 let minimap_line_height = self.get_minimap_line_height(
1713 minimap_editor
1714 .read(cx)
1715 .text_style_refinement
1716 .as_ref()
1717 .and_then(|refinement| refinement.font_size)
1718 .unwrap_or(MINIMAP_FONT_SIZE),
1719 window,
1720 cx,
1721 );
1722 let minimap_height = minimap_bounds.size.height;
1723
1724 let visible_editor_lines = editor_bounds.size.height / line_height;
1725 let total_editor_lines = scroll_range.height / line_height;
1726 let minimap_lines = minimap_height / minimap_line_height;
1727
1728 let minimap_scroll_top = MinimapLayout::calculate_minimap_top_offset(
1729 total_editor_lines,
1730 visible_editor_lines,
1731 minimap_lines,
1732 scroll_position,
1733 );
1734
1735 let layout = ScrollbarLayout::for_minimap(
1736 window.insert_hitbox(minimap_bounds, HitboxBehavior::Normal),
1737 visible_editor_lines,
1738 total_editor_lines,
1739 minimap_line_height,
1740 scroll_position,
1741 minimap_scroll_top,
1742 show_thumb,
1743 )
1744 .with_thumb_state(thumb_state);
1745
1746 minimap_editor.update(cx, |editor, cx| {
1747 editor.set_scroll_position(point(0., minimap_scroll_top), window, cx)
1748 });
1749
1750 // Required for the drop shadow to be visible
1751 const PADDING_OFFSET: Pixels = px(4.);
1752
1753 let mut minimap = div()
1754 .size_full()
1755 .shadow_sm()
1756 .px(PADDING_OFFSET)
1757 .child(minimap_editor)
1758 .into_any_element();
1759
1760 let extended_bounds = minimap_bounds.extend(Edges {
1761 right: PADDING_OFFSET,
1762 left: PADDING_OFFSET,
1763 ..Default::default()
1764 });
1765 minimap.layout_as_root(extended_bounds.size.into(), window, cx);
1766 window.with_absolute_element_offset(extended_bounds.origin, |window| {
1767 minimap.prepaint(window, cx)
1768 });
1769
1770 Some(MinimapLayout {
1771 minimap,
1772 thumb_layout: layout,
1773 thumb_border_style: minimap_settings.thumb_border,
1774 minimap_line_height,
1775 minimap_scroll_top,
1776 max_scroll_top: total_editor_lines,
1777 })
1778 }
1779
1780 fn get_minimap_line_height(
1781 &self,
1782 font_size: AbsoluteLength,
1783 window: &mut Window,
1784 cx: &mut App,
1785 ) -> Pixels {
1786 let rem_size = self.rem_size(cx).unwrap_or(window.rem_size());
1787 let mut text_style = self.style.text.clone();
1788 text_style.font_size = font_size;
1789 text_style.line_height_in_pixels(rem_size)
1790 }
1791
1792 fn prepaint_crease_toggles(
1793 &self,
1794 crease_toggles: &mut [Option<AnyElement>],
1795 line_height: Pixels,
1796 gutter_dimensions: &GutterDimensions,
1797 gutter_settings: crate::editor_settings::Gutter,
1798 scroll_pixel_position: gpui::Point<Pixels>,
1799 gutter_hitbox: &Hitbox,
1800 window: &mut Window,
1801 cx: &mut App,
1802 ) {
1803 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1804 if let Some(crease_toggle) = crease_toggle {
1805 debug_assert!(gutter_settings.folds);
1806 let available_space = size(
1807 AvailableSpace::MinContent,
1808 AvailableSpace::Definite(line_height * 0.55),
1809 );
1810 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1811
1812 let position = point(
1813 gutter_dimensions.width - gutter_dimensions.right_padding,
1814 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1815 );
1816 let centering_offset = point(
1817 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1818 (line_height - crease_toggle_size.height) / 2.,
1819 );
1820 let origin = gutter_hitbox.origin + position + centering_offset;
1821 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1822 }
1823 }
1824 }
1825
1826 fn prepaint_expand_toggles(
1827 &self,
1828 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
1829 window: &mut Window,
1830 cx: &mut App,
1831 ) {
1832 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
1833 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
1834 expand_toggle.layout_as_root(available_space, window, cx);
1835 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
1836 }
1837 }
1838
1839 fn prepaint_crease_trailers(
1840 &self,
1841 trailers: Vec<Option<AnyElement>>,
1842 lines: &[LineWithInvisibles],
1843 line_height: Pixels,
1844 content_origin: gpui::Point<Pixels>,
1845 scroll_pixel_position: gpui::Point<Pixels>,
1846 em_width: Pixels,
1847 window: &mut Window,
1848 cx: &mut App,
1849 ) -> Vec<Option<CreaseTrailerLayout>> {
1850 trailers
1851 .into_iter()
1852 .enumerate()
1853 .map(|(ix, element)| {
1854 let mut element = element?;
1855 let available_space = size(
1856 AvailableSpace::MinContent,
1857 AvailableSpace::Definite(line_height),
1858 );
1859 let size = element.layout_as_root(available_space, window, cx);
1860
1861 let line = &lines[ix];
1862 let padding = if line.width == Pixels::ZERO {
1863 Pixels::ZERO
1864 } else {
1865 4. * em_width
1866 };
1867 let position = point(
1868 scroll_pixel_position.x + line.width + padding,
1869 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1870 );
1871 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1872 let origin = content_origin + position + centering_offset;
1873 element.prepaint_as_root(origin, available_space, window, cx);
1874 Some(CreaseTrailerLayout {
1875 element,
1876 bounds: Bounds::new(origin, size),
1877 })
1878 })
1879 .collect()
1880 }
1881
1882 // Folds contained in a hunk are ignored apart from shrinking visual size
1883 // If a fold contains any hunks then that fold line is marked as modified
1884 fn layout_gutter_diff_hunks(
1885 &self,
1886 line_height: Pixels,
1887 gutter_hitbox: &Hitbox,
1888 display_rows: Range<DisplayRow>,
1889 snapshot: &EditorSnapshot,
1890 window: &mut Window,
1891 cx: &mut App,
1892 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1893 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1894 let mut display_hunks = snapshot
1895 .display_diff_hunks_for_rows(display_rows, folded_buffers)
1896 .map(|hunk| (hunk, None))
1897 .collect::<Vec<_>>();
1898 let git_gutter_setting = ProjectSettings::get_global(cx)
1899 .git
1900 .git_gutter
1901 .unwrap_or_default();
1902 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1903 for (hunk, hitbox) in &mut display_hunks {
1904 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1905 let hunk_bounds =
1906 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1907 *hitbox = Some(window.insert_hitbox(hunk_bounds, HitboxBehavior::BlockMouse));
1908 }
1909 }
1910 }
1911
1912 display_hunks
1913 }
1914
1915 fn layout_inline_diagnostics(
1916 &self,
1917 line_layouts: &[LineWithInvisibles],
1918 crease_trailers: &[Option<CreaseTrailerLayout>],
1919 row_block_types: &HashMap<DisplayRow, bool>,
1920 content_origin: gpui::Point<Pixels>,
1921 scroll_pixel_position: gpui::Point<Pixels>,
1922 inline_completion_popover_origin: Option<gpui::Point<Pixels>>,
1923 start_row: DisplayRow,
1924 end_row: DisplayRow,
1925 line_height: Pixels,
1926 em_width: Pixels,
1927 style: &EditorStyle,
1928 window: &mut Window,
1929 cx: &mut App,
1930 ) -> HashMap<DisplayRow, AnyElement> {
1931 if self.editor.read(cx).mode().is_minimap() {
1932 return HashMap::default();
1933 }
1934
1935 let max_severity = match ProjectSettings::get_global(cx)
1936 .diagnostics
1937 .inline
1938 .max_severity
1939 .unwrap_or_else(|| self.editor.read(cx).diagnostics_max_severity)
1940 .into_lsp()
1941 {
1942 Some(max_severity) => max_severity,
1943 None => return HashMap::default(),
1944 };
1945
1946 let active_diagnostics_group =
1947 if let ActiveDiagnostic::Group(group) = &self.editor.read(cx).active_diagnostics {
1948 Some(group.group_id)
1949 } else {
1950 None
1951 };
1952
1953 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
1954 let snapshot = editor.snapshot(window, cx);
1955 editor
1956 .inline_diagnostics
1957 .iter()
1958 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
1959 .filter(|(_, diagnostic)| match active_diagnostics_group {
1960 Some(active_diagnostics_group) => {
1961 // Active diagnostics are all shown in the editor already, no need to display them inline
1962 diagnostic.group_id != active_diagnostics_group
1963 }
1964 None => true,
1965 })
1966 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
1967 .skip_while(|(point, _)| point.row() < start_row)
1968 .take_while(|(point, _)| point.row() < end_row)
1969 .filter(|(point, _)| !row_block_types.contains_key(&point.row()))
1970 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
1971 acc.entry(point.row())
1972 .or_insert_with(Vec::new)
1973 .push(diagnostic);
1974 acc
1975 })
1976 });
1977
1978 if diagnostics_by_rows.is_empty() {
1979 return HashMap::default();
1980 }
1981
1982 let severity_to_color = |sev: &lsp::DiagnosticSeverity| match sev {
1983 &lsp::DiagnosticSeverity::ERROR => Color::Error,
1984 &lsp::DiagnosticSeverity::WARNING => Color::Warning,
1985 &lsp::DiagnosticSeverity::INFORMATION => Color::Info,
1986 &lsp::DiagnosticSeverity::HINT => Color::Hint,
1987 _ => Color::Error,
1988 };
1989
1990 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
1991 let min_x = ProjectSettings::get_global(cx)
1992 .diagnostics
1993 .inline
1994 .min_column as f32
1995 * em_width;
1996
1997 let mut elements = HashMap::default();
1998 for (row, mut diagnostics) in diagnostics_by_rows {
1999 diagnostics.sort_by_key(|diagnostic| {
2000 (
2001 diagnostic.severity,
2002 std::cmp::Reverse(diagnostic.is_primary),
2003 diagnostic.start.row,
2004 diagnostic.start.column,
2005 )
2006 });
2007
2008 let Some(diagnostic_to_render) = diagnostics
2009 .iter()
2010 .find(|diagnostic| diagnostic.is_primary)
2011 .or_else(|| diagnostics.first())
2012 else {
2013 continue;
2014 };
2015
2016 let pos_y = content_origin.y
2017 + line_height * (row.0 as f32 - scroll_pixel_position.y / line_height);
2018
2019 let window_ix = row.0.saturating_sub(start_row.0) as usize;
2020 let pos_x = {
2021 let crease_trailer_layout = &crease_trailers[window_ix];
2022 let line_layout = &line_layouts[window_ix];
2023
2024 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
2025 crease_trailer.bounds.right()
2026 } else {
2027 content_origin.x - scroll_pixel_position.x + line_layout.width
2028 };
2029
2030 let padded_line = line_end + padding;
2031 let min_start = content_origin.x - scroll_pixel_position.x + min_x;
2032
2033 cmp::max(padded_line, min_start)
2034 };
2035
2036 let behind_inline_completion_popover = inline_completion_popover_origin
2037 .as_ref()
2038 .map_or(false, |inline_completion_popover_origin| {
2039 (pos_y..pos_y + line_height).contains(&inline_completion_popover_origin.y)
2040 });
2041 let opacity = if behind_inline_completion_popover {
2042 0.5
2043 } else {
2044 1.0
2045 };
2046
2047 let mut element = h_flex()
2048 .id(("diagnostic", row.0))
2049 .h(line_height)
2050 .w_full()
2051 .px_1()
2052 .rounded_xs()
2053 .opacity(opacity)
2054 .bg(severity_to_color(&diagnostic_to_render.severity)
2055 .color(cx)
2056 .opacity(0.05))
2057 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
2058 .text_sm()
2059 .font_family(style.text.font().family)
2060 .child(diagnostic_to_render.message.clone())
2061 .into_any();
2062
2063 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
2064
2065 elements.insert(row, element);
2066 }
2067
2068 elements
2069 }
2070
2071 fn layout_inline_code_actions(
2072 &self,
2073 display_point: DisplayPoint,
2074 content_origin: gpui::Point<Pixels>,
2075 scroll_pixel_position: gpui::Point<Pixels>,
2076 line_height: Pixels,
2077 snapshot: &EditorSnapshot,
2078 window: &mut Window,
2079 cx: &mut App,
2080 ) -> Option<AnyElement> {
2081 if !snapshot
2082 .show_code_actions
2083 .unwrap_or(EditorSettings::get_global(cx).inline_code_actions)
2084 {
2085 return None;
2086 }
2087
2088 let icon_size = ui::IconSize::XSmall;
2089 let mut button = self.editor.update(cx, |editor, cx| {
2090 editor.available_code_actions.as_ref()?;
2091 let active = editor
2092 .context_menu
2093 .borrow()
2094 .as_ref()
2095 .and_then(|menu| {
2096 if let crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2097 deployed_from,
2098 ..
2099 }) = menu
2100 {
2101 deployed_from.as_ref()
2102 } else {
2103 None
2104 }
2105 })
2106 .map_or(false, |source| {
2107 matches!(source, CodeActionSource::Indicator(..))
2108 });
2109 Some(editor.render_inline_code_actions(icon_size, display_point.row(), active, cx))
2110 })?;
2111
2112 let buffer_point = display_point.to_point(&snapshot.display_snapshot);
2113
2114 // do not show code action for folded line
2115 if snapshot.is_line_folded(MultiBufferRow(buffer_point.row)) {
2116 return None;
2117 }
2118
2119 // do not show code action for blank line with cursor
2120 let line_indent = snapshot
2121 .display_snapshot
2122 .buffer_snapshot
2123 .line_indent_for_row(MultiBufferRow(buffer_point.row));
2124 if line_indent.is_line_blank() {
2125 return None;
2126 }
2127
2128 const INLINE_SLOT_CHAR_LIMIT: u32 = 4;
2129 const MAX_ALTERNATE_DISTANCE: u32 = 8;
2130
2131 let excerpt_id = snapshot
2132 .display_snapshot
2133 .buffer_snapshot
2134 .excerpt_containing(buffer_point..buffer_point)
2135 .map(|excerpt| excerpt.id());
2136
2137 let is_valid_row = |row_candidate: u32| -> bool {
2138 // move to other row if folded row
2139 if snapshot.is_line_folded(MultiBufferRow(row_candidate)) {
2140 return false;
2141 }
2142 if buffer_point.row == row_candidate {
2143 // move to other row if cursor is in slot
2144 if buffer_point.column < INLINE_SLOT_CHAR_LIMIT {
2145 return false;
2146 }
2147 } else {
2148 let candidate_point = MultiBufferPoint {
2149 row: row_candidate,
2150 column: 0,
2151 };
2152 let candidate_excerpt_id = snapshot
2153 .display_snapshot
2154 .buffer_snapshot
2155 .excerpt_containing(candidate_point..candidate_point)
2156 .map(|excerpt| excerpt.id());
2157 // move to other row if different excerpt
2158 if excerpt_id != candidate_excerpt_id {
2159 return false;
2160 }
2161 }
2162 let line_indent = snapshot
2163 .display_snapshot
2164 .buffer_snapshot
2165 .line_indent_for_row(MultiBufferRow(row_candidate));
2166 // use this row if it's blank
2167 if line_indent.is_line_blank() {
2168 true
2169 } else {
2170 // use this row if code starts after slot
2171 let indent_size = snapshot
2172 .display_snapshot
2173 .buffer_snapshot
2174 .indent_size_for_line(MultiBufferRow(row_candidate));
2175 indent_size.len >= INLINE_SLOT_CHAR_LIMIT
2176 }
2177 };
2178
2179 let new_buffer_row = if is_valid_row(buffer_point.row) {
2180 Some(buffer_point.row)
2181 } else {
2182 let max_row = snapshot.display_snapshot.buffer_snapshot.max_point().row;
2183 (1..=MAX_ALTERNATE_DISTANCE).find_map(|offset| {
2184 let row_above = buffer_point.row.saturating_sub(offset);
2185 let row_below = buffer_point.row + offset;
2186 if row_above != buffer_point.row && is_valid_row(row_above) {
2187 Some(row_above)
2188 } else if row_below <= max_row && is_valid_row(row_below) {
2189 Some(row_below)
2190 } else {
2191 None
2192 }
2193 })
2194 }?;
2195
2196 let new_display_row = snapshot
2197 .display_snapshot
2198 .point_to_display_point(
2199 Point {
2200 row: new_buffer_row,
2201 column: buffer_point.column,
2202 },
2203 text::Bias::Left,
2204 )
2205 .row();
2206
2207 let start_y = content_origin.y
2208 + ((new_display_row.as_f32() - (scroll_pixel_position.y / line_height)) * line_height)
2209 + (line_height / 2.0)
2210 - (icon_size.square(window, cx) / 2.);
2211 let start_x = content_origin.x - scroll_pixel_position.x + (window.rem_size() * 0.1);
2212
2213 let absolute_offset = gpui::point(start_x, start_y);
2214 button.layout_as_root(gpui::AvailableSpace::min_size(), window, cx);
2215 button.prepaint_as_root(
2216 absolute_offset,
2217 gpui::AvailableSpace::min_size(),
2218 window,
2219 cx,
2220 );
2221 Some(button)
2222 }
2223
2224 fn layout_inline_blame(
2225 &self,
2226 display_row: DisplayRow,
2227 row_info: &RowInfo,
2228 line_layout: &LineWithInvisibles,
2229 crease_trailer: Option<&CreaseTrailerLayout>,
2230 em_width: Pixels,
2231 content_origin: gpui::Point<Pixels>,
2232 scroll_pixel_position: gpui::Point<Pixels>,
2233 line_height: Pixels,
2234 text_hitbox: &Hitbox,
2235 window: &mut Window,
2236 cx: &mut App,
2237 ) -> Option<AnyElement> {
2238 if !self
2239 .editor
2240 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
2241 {
2242 return None;
2243 }
2244
2245 let editor = self.editor.read(cx);
2246 let blame = editor.blame.clone()?;
2247 let padding = {
2248 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
2249 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
2250
2251 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
2252
2253 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
2254 match &inline_completion.completion {
2255 InlineCompletion::Edit {
2256 display_mode: EditDisplayMode::TabAccept,
2257 ..
2258 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
2259 _ => {}
2260 }
2261 }
2262
2263 padding * em_width
2264 };
2265
2266 let blame_entry = blame
2267 .update(cx, |blame, cx| {
2268 blame.blame_for_rows(&[*row_info], cx).next()
2269 })
2270 .flatten()?;
2271
2272 let mut element = render_inline_blame_entry(blame_entry.clone(), &self.style, cx)?;
2273
2274 let start_y = content_origin.y
2275 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
2276
2277 let start_x = {
2278 let line_end = if let Some(crease_trailer) = crease_trailer {
2279 crease_trailer.bounds.right()
2280 } else {
2281 content_origin.x - scroll_pixel_position.x + line_layout.width
2282 };
2283
2284 let padded_line_end = line_end + padding;
2285
2286 let min_column_in_pixels = ProjectSettings::get_global(cx)
2287 .git
2288 .inline_blame
2289 .and_then(|settings| settings.min_column)
2290 .map(|col| self.column_pixels(col as usize, window, cx))
2291 .unwrap_or(px(0.));
2292 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
2293
2294 cmp::max(padded_line_end, min_start)
2295 };
2296
2297 let absolute_offset = point(start_x, start_y);
2298 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2299 let bounds = Bounds::new(absolute_offset, size);
2300
2301 self.layout_blame_entry_popover(
2302 bounds,
2303 blame_entry,
2304 blame,
2305 line_height,
2306 text_hitbox,
2307 window,
2308 cx,
2309 );
2310
2311 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
2312
2313 Some(element)
2314 }
2315
2316 fn layout_blame_entry_popover(
2317 &self,
2318 parent_bounds: Bounds<Pixels>,
2319 blame_entry: BlameEntry,
2320 blame: Entity<GitBlame>,
2321 line_height: Pixels,
2322 text_hitbox: &Hitbox,
2323 window: &mut Window,
2324 cx: &mut App,
2325 ) {
2326 let mouse_position = window.mouse_position();
2327 let mouse_over_inline_blame = parent_bounds.contains(&mouse_position);
2328 let mouse_over_popover = self.editor.read_with(cx, |editor, _| {
2329 editor
2330 .inline_blame_popover
2331 .as_ref()
2332 .and_then(|state| state.popover_bounds)
2333 .map_or(false, |bounds| bounds.contains(&mouse_position))
2334 });
2335
2336 self.editor.update(cx, |editor, cx| {
2337 if mouse_over_inline_blame || mouse_over_popover {
2338 editor.show_blame_popover(&blame_entry, mouse_position, cx);
2339 } else {
2340 editor.hide_blame_popover(cx);
2341 }
2342 });
2343
2344 let should_draw = self.editor.read_with(cx, |editor, _| {
2345 editor
2346 .inline_blame_popover
2347 .as_ref()
2348 .map_or(false, |state| state.show_task.is_none())
2349 });
2350
2351 if should_draw {
2352 let maybe_element = self.editor.update(cx, |editor, cx| {
2353 editor
2354 .workspace()
2355 .map(|workspace| workspace.downgrade())
2356 .zip(
2357 editor
2358 .inline_blame_popover
2359 .as_ref()
2360 .map(|p| p.popover_state.clone()),
2361 )
2362 .and_then(|(workspace, popover_state)| {
2363 render_blame_entry_popover(
2364 blame_entry,
2365 popover_state.scroll_handle,
2366 popover_state.commit_message,
2367 popover_state.markdown,
2368 workspace,
2369 &blame,
2370 window,
2371 cx,
2372 )
2373 })
2374 });
2375
2376 if let Some(mut element) = maybe_element {
2377 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2378 let origin = self.editor.read_with(cx, |editor, _| {
2379 let target_point = editor
2380 .inline_blame_popover
2381 .as_ref()
2382 .map_or(mouse_position, |state| state.position);
2383
2384 let overall_height = size.height + HOVER_POPOVER_GAP;
2385 let popover_origin = if target_point.y > overall_height {
2386 point(target_point.x, target_point.y - size.height)
2387 } else {
2388 point(
2389 target_point.x,
2390 target_point.y + line_height + HOVER_POPOVER_GAP,
2391 )
2392 };
2393
2394 let horizontal_offset = (text_hitbox.top_right().x
2395 - POPOVER_RIGHT_OFFSET
2396 - (popover_origin.x + size.width))
2397 .min(Pixels::ZERO);
2398
2399 point(popover_origin.x + horizontal_offset, popover_origin.y)
2400 });
2401
2402 let popover_bounds = Bounds::new(origin, size);
2403 self.editor.update(cx, |editor, _| {
2404 if let Some(state) = &mut editor.inline_blame_popover {
2405 state.popover_bounds = Some(popover_bounds);
2406 }
2407 });
2408
2409 window.defer_draw(element, origin, 2);
2410 }
2411 }
2412 }
2413
2414 fn layout_blame_entries(
2415 &self,
2416 buffer_rows: &[RowInfo],
2417 em_width: Pixels,
2418 scroll_position: gpui::Point<f32>,
2419 line_height: Pixels,
2420 gutter_hitbox: &Hitbox,
2421 max_width: Option<Pixels>,
2422 window: &mut Window,
2423 cx: &mut App,
2424 ) -> Option<Vec<AnyElement>> {
2425 if !self
2426 .editor
2427 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
2428 {
2429 return None;
2430 }
2431
2432 let blame = self.editor.read(cx).blame.clone()?;
2433 let workspace = self.editor.read(cx).workspace()?;
2434 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
2435 blame.blame_for_rows(buffer_rows, cx).collect()
2436 });
2437
2438 let width = if let Some(max_width) = max_width {
2439 AvailableSpace::Definite(max_width)
2440 } else {
2441 AvailableSpace::MaxContent
2442 };
2443 let scroll_top = scroll_position.y * line_height;
2444 let start_x = em_width;
2445
2446 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
2447 let blame_renderer = cx.global::<GlobalBlameRenderer>().0.clone();
2448
2449 let shaped_lines = blamed_rows
2450 .into_iter()
2451 .enumerate()
2452 .flat_map(|(ix, blame_entry)| {
2453 let mut element = render_blame_entry(
2454 ix,
2455 &blame,
2456 blame_entry?,
2457 &self.style,
2458 &mut last_used_color,
2459 self.editor.clone(),
2460 workspace.clone(),
2461 blame_renderer.clone(),
2462 cx,
2463 )?;
2464
2465 let start_y = ix as f32 * line_height - (scroll_top % line_height);
2466 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
2467
2468 element.prepaint_as_root(
2469 absolute_offset,
2470 size(width, AvailableSpace::MinContent),
2471 window,
2472 cx,
2473 );
2474
2475 Some(element)
2476 })
2477 .collect();
2478
2479 Some(shaped_lines)
2480 }
2481
2482 fn layout_indent_guides(
2483 &self,
2484 content_origin: gpui::Point<Pixels>,
2485 text_origin: gpui::Point<Pixels>,
2486 visible_buffer_range: Range<MultiBufferRow>,
2487 scroll_pixel_position: gpui::Point<Pixels>,
2488 line_height: Pixels,
2489 snapshot: &DisplaySnapshot,
2490 window: &mut Window,
2491 cx: &mut App,
2492 ) -> Option<Vec<IndentGuideLayout>> {
2493 if self.editor.read(cx).mode().is_minimap() {
2494 return None;
2495 }
2496 let indent_guides = self.editor.update(cx, |editor, cx| {
2497 editor.indent_guides(visible_buffer_range, snapshot, cx)
2498 })?;
2499
2500 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
2501 editor
2502 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
2503 .unwrap_or_default()
2504 });
2505
2506 Some(
2507 indent_guides
2508 .into_iter()
2509 .enumerate()
2510 .filter_map(|(i, indent_guide)| {
2511 let single_indent_width =
2512 self.column_pixels(indent_guide.tab_size as usize, window, cx);
2513 let total_width = single_indent_width * indent_guide.depth as f32;
2514 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
2515 if start_x >= text_origin.x {
2516 let (offset_y, length) = Self::calculate_indent_guide_bounds(
2517 indent_guide.start_row..indent_guide.end_row,
2518 line_height,
2519 snapshot,
2520 );
2521
2522 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
2523
2524 Some(IndentGuideLayout {
2525 origin: point(start_x, start_y),
2526 length,
2527 single_indent_width,
2528 depth: indent_guide.depth,
2529 active: active_indent_guide_indices.contains(&i),
2530 settings: indent_guide.settings,
2531 })
2532 } else {
2533 None
2534 }
2535 })
2536 .collect(),
2537 )
2538 }
2539
2540 fn calculate_indent_guide_bounds(
2541 row_range: Range<MultiBufferRow>,
2542 line_height: Pixels,
2543 snapshot: &DisplaySnapshot,
2544 ) -> (gpui::Pixels, gpui::Pixels) {
2545 let start_point = Point::new(row_range.start.0, 0);
2546 let end_point = Point::new(row_range.end.0, 0);
2547
2548 let row_range = start_point.to_display_point(snapshot).row()
2549 ..end_point.to_display_point(snapshot).row();
2550
2551 let mut prev_line = start_point;
2552 prev_line.row = prev_line.row.saturating_sub(1);
2553 let prev_line = prev_line.to_display_point(snapshot).row();
2554
2555 let mut cons_line = end_point;
2556 cons_line.row += 1;
2557 let cons_line = cons_line.to_display_point(snapshot).row();
2558
2559 let mut offset_y = row_range.start.0 as f32 * line_height;
2560 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
2561
2562 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
2563 if row_range.end == cons_line {
2564 length += line_height;
2565 }
2566
2567 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
2568 // we want to extend the indent guide to the start of the block.
2569 let mut block_height = 0;
2570 let mut block_offset = 0;
2571 let mut found_excerpt_header = false;
2572 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
2573 if matches!(block, Block::ExcerptBoundary { .. }) {
2574 found_excerpt_header = true;
2575 break;
2576 }
2577 block_offset += block.height();
2578 block_height += block.height();
2579 }
2580 if !found_excerpt_header {
2581 offset_y -= block_offset as f32 * line_height;
2582 length += block_height as f32 * line_height;
2583 }
2584
2585 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
2586 // we want to ensure that the indent guide stops before the excerpt header.
2587 let mut block_height = 0;
2588 let mut found_excerpt_header = false;
2589 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
2590 if matches!(block, Block::ExcerptBoundary { .. }) {
2591 found_excerpt_header = true;
2592 }
2593 block_height += block.height();
2594 }
2595 if found_excerpt_header {
2596 length -= block_height as f32 * line_height;
2597 }
2598
2599 (offset_y, length)
2600 }
2601
2602 fn layout_breakpoints(
2603 &self,
2604 line_height: Pixels,
2605 range: Range<DisplayRow>,
2606 scroll_pixel_position: gpui::Point<Pixels>,
2607 gutter_dimensions: &GutterDimensions,
2608 gutter_hitbox: &Hitbox,
2609 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2610 snapshot: &EditorSnapshot,
2611 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
2612 row_infos: &[RowInfo],
2613 window: &mut Window,
2614 cx: &mut App,
2615 ) -> Vec<AnyElement> {
2616 self.editor.update(cx, |editor, cx| {
2617 breakpoints
2618 .into_iter()
2619 .filter_map(|(display_row, (text_anchor, bp, state))| {
2620 if row_infos
2621 .get((display_row.0.saturating_sub(range.start.0)) as usize)
2622 .is_some_and(|row_info| {
2623 row_info.expand_info.is_some()
2624 || row_info
2625 .diff_status
2626 .is_some_and(|status| status.is_deleted())
2627 })
2628 {
2629 return None;
2630 }
2631
2632 if range.start > display_row || range.end < display_row {
2633 return None;
2634 }
2635
2636 let row =
2637 MultiBufferRow(DisplayPoint::new(display_row, 0).to_point(&snapshot).row);
2638 if snapshot.is_line_folded(row) {
2639 return None;
2640 }
2641
2642 let button = editor.render_breakpoint(text_anchor, display_row, &bp, state, cx);
2643
2644 let button = prepaint_gutter_button(
2645 button,
2646 display_row,
2647 line_height,
2648 gutter_dimensions,
2649 scroll_pixel_position,
2650 gutter_hitbox,
2651 display_hunks,
2652 window,
2653 cx,
2654 );
2655 Some(button)
2656 })
2657 .collect_vec()
2658 })
2659 }
2660
2661 #[allow(clippy::too_many_arguments)]
2662 fn layout_run_indicators(
2663 &self,
2664 line_height: Pixels,
2665 range: Range<DisplayRow>,
2666 row_infos: &[RowInfo],
2667 scroll_pixel_position: gpui::Point<Pixels>,
2668 gutter_dimensions: &GutterDimensions,
2669 gutter_hitbox: &Hitbox,
2670 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2671 snapshot: &EditorSnapshot,
2672 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
2673 window: &mut Window,
2674 cx: &mut App,
2675 ) -> Vec<AnyElement> {
2676 self.editor.update(cx, |editor, cx| {
2677 let active_task_indicator_row =
2678 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2679 deployed_from,
2680 actions,
2681 ..
2682 })) = editor.context_menu.borrow().as_ref()
2683 {
2684 actions
2685 .tasks()
2686 .map(|tasks| tasks.position.to_display_point(snapshot).row())
2687 .or_else(|| match deployed_from {
2688 Some(CodeActionSource::Indicator(row)) => Some(*row),
2689 _ => None,
2690 })
2691 } else {
2692 None
2693 };
2694
2695 let offset_range_start =
2696 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
2697
2698 let offset_range_end =
2699 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
2700
2701 editor
2702 .tasks
2703 .iter()
2704 .filter_map(|(_, tasks)| {
2705 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot);
2706 if multibuffer_point < offset_range_start
2707 || multibuffer_point > offset_range_end
2708 {
2709 return None;
2710 }
2711 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
2712 let buffer_folded = snapshot
2713 .buffer_snapshot
2714 .buffer_line_for_row(multibuffer_row)
2715 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
2716 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
2717 .unwrap_or(false);
2718 if buffer_folded {
2719 return None;
2720 }
2721
2722 if snapshot.is_line_folded(multibuffer_row) {
2723 // Skip folded indicators, unless it's the starting line of a fold.
2724 if multibuffer_row
2725 .0
2726 .checked_sub(1)
2727 .map_or(false, |previous_row| {
2728 snapshot.is_line_folded(MultiBufferRow(previous_row))
2729 })
2730 {
2731 return None;
2732 }
2733 }
2734
2735 let display_row = multibuffer_point.to_display_point(snapshot).row();
2736 if !range.contains(&display_row) {
2737 return None;
2738 }
2739 if row_infos
2740 .get((display_row - range.start).0 as usize)
2741 .is_some_and(|row_info| row_info.expand_info.is_some())
2742 {
2743 return None;
2744 }
2745
2746 let button = editor.render_run_indicator(
2747 &self.style,
2748 Some(display_row) == active_task_indicator_row,
2749 display_row,
2750 breakpoints.remove(&display_row),
2751 cx,
2752 );
2753
2754 let button = prepaint_gutter_button(
2755 button,
2756 display_row,
2757 line_height,
2758 gutter_dimensions,
2759 scroll_pixel_position,
2760 gutter_hitbox,
2761 display_hunks,
2762 window,
2763 cx,
2764 );
2765 Some(button)
2766 })
2767 .collect_vec()
2768 })
2769 }
2770
2771 fn layout_expand_toggles(
2772 &self,
2773 gutter_hitbox: &Hitbox,
2774 gutter_dimensions: GutterDimensions,
2775 em_width: Pixels,
2776 line_height: Pixels,
2777 scroll_position: gpui::Point<f32>,
2778 buffer_rows: &[RowInfo],
2779 window: &mut Window,
2780 cx: &mut App,
2781 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
2782 if self.editor.read(cx).disable_expand_excerpt_buttons {
2783 return vec![];
2784 }
2785
2786 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
2787
2788 let scroll_top = scroll_position.y * line_height;
2789
2790 let max_line_number_length = self
2791 .editor
2792 .read(cx)
2793 .buffer()
2794 .read(cx)
2795 .snapshot(cx)
2796 .widest_line_number()
2797 .ilog10()
2798 + 1;
2799
2800 let elements = buffer_rows
2801 .into_iter()
2802 .enumerate()
2803 .map(|(ix, row_info)| {
2804 let ExpandInfo {
2805 excerpt_id,
2806 direction,
2807 } = row_info.expand_info?;
2808
2809 let icon_name = match direction {
2810 ExpandExcerptDirection::Up => IconName::ExpandUp,
2811 ExpandExcerptDirection::Down => IconName::ExpandDown,
2812 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
2813 };
2814
2815 let git_gutter_width = Self::gutter_strip_width(line_height);
2816 let available_width = gutter_dimensions.left_padding - git_gutter_width;
2817
2818 let editor = self.editor.clone();
2819 let is_wide = max_line_number_length >= MIN_LINE_NUMBER_DIGITS
2820 && row_info
2821 .buffer_row
2822 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
2823 || gutter_dimensions.right_padding == px(0.);
2824
2825 let width = if is_wide {
2826 available_width - px(2.)
2827 } else {
2828 available_width + em_width - px(2.)
2829 };
2830
2831 let toggle = IconButton::new(("expand", ix), icon_name)
2832 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
2833 .selected_icon_color(Color::Custom(cx.theme().colors().editor_foreground))
2834 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
2835 .width(width.into())
2836 .on_click(move |_, window, cx| {
2837 editor.update(cx, |editor, cx| {
2838 editor.expand_excerpt(excerpt_id, direction, window, cx);
2839 });
2840 })
2841 .tooltip(Tooltip::for_action_title(
2842 "Expand Excerpt",
2843 &crate::actions::ExpandExcerpts::default(),
2844 ))
2845 .into_any_element();
2846
2847 let position = point(
2848 git_gutter_width + px(1.),
2849 ix as f32 * line_height - (scroll_top % line_height) + px(1.),
2850 );
2851 let origin = gutter_hitbox.origin + position;
2852
2853 Some((toggle, origin))
2854 })
2855 .collect();
2856
2857 elements
2858 }
2859
2860 fn calculate_relative_line_numbers(
2861 &self,
2862 snapshot: &EditorSnapshot,
2863 rows: &Range<DisplayRow>,
2864 relative_to: Option<DisplayRow>,
2865 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2866 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2867 let Some(relative_to) = relative_to else {
2868 return relative_rows;
2869 };
2870
2871 let start = rows.start.min(relative_to);
2872 let end = rows.end.max(relative_to);
2873
2874 let buffer_rows = snapshot
2875 .row_infos(start)
2876 .take(1 + end.minus(start) as usize)
2877 .collect::<Vec<_>>();
2878
2879 let head_idx = relative_to.minus(start);
2880 let mut delta = 1;
2881 let mut i = head_idx + 1;
2882 while i < buffer_rows.len() as u32 {
2883 if buffer_rows[i as usize].buffer_row.is_some() {
2884 if rows.contains(&DisplayRow(i + start.0)) {
2885 relative_rows.insert(DisplayRow(i + start.0), delta);
2886 }
2887 delta += 1;
2888 }
2889 i += 1;
2890 }
2891 delta = 1;
2892 i = head_idx.min(buffer_rows.len() as u32 - 1);
2893 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2894 i -= 1;
2895 }
2896
2897 while i > 0 {
2898 i -= 1;
2899 if buffer_rows[i as usize].buffer_row.is_some() {
2900 if rows.contains(&DisplayRow(i + start.0)) {
2901 relative_rows.insert(DisplayRow(i + start.0), delta);
2902 }
2903 delta += 1;
2904 }
2905 }
2906
2907 relative_rows
2908 }
2909
2910 fn layout_line_numbers(
2911 &self,
2912 gutter_hitbox: Option<&Hitbox>,
2913 gutter_dimensions: GutterDimensions,
2914 line_height: Pixels,
2915 scroll_position: gpui::Point<f32>,
2916 rows: Range<DisplayRow>,
2917 buffer_rows: &[RowInfo],
2918 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
2919 newest_selection_head: Option<DisplayPoint>,
2920 snapshot: &EditorSnapshot,
2921 window: &mut Window,
2922 cx: &mut App,
2923 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2924 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2925 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode.is_full()
2926 });
2927 if !include_line_numbers {
2928 return Arc::default();
2929 }
2930
2931 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2932 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2933 let newest = editor.selections.newest::<Point>(cx);
2934 SelectionLayout::new(
2935 newest,
2936 editor.selections.line_mode,
2937 editor.cursor_shape,
2938 &snapshot.display_snapshot,
2939 true,
2940 true,
2941 None,
2942 )
2943 .head
2944 });
2945 let is_relative = editor.should_use_relative_line_numbers(cx);
2946 (newest_selection_head, is_relative)
2947 });
2948
2949 let relative_to = if is_relative {
2950 Some(newest_selection_head.row())
2951 } else {
2952 None
2953 };
2954 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2955 let mut line_number = String::new();
2956 let line_numbers = buffer_rows
2957 .into_iter()
2958 .enumerate()
2959 .flat_map(|(ix, row_info)| {
2960 let display_row = DisplayRow(rows.start.0 + ix as u32);
2961 line_number.clear();
2962 let non_relative_number = row_info.buffer_row? + 1;
2963 let number = relative_rows
2964 .get(&display_row)
2965 .unwrap_or(&non_relative_number);
2966 write!(&mut line_number, "{number}").unwrap();
2967 if row_info
2968 .diff_status
2969 .is_some_and(|status| status.is_deleted())
2970 {
2971 return None;
2972 }
2973
2974 let color = active_rows
2975 .get(&display_row)
2976 .map(|spec| {
2977 if spec.breakpoint {
2978 cx.theme().colors().debugger_accent
2979 } else {
2980 cx.theme().colors().editor_active_line_number
2981 }
2982 })
2983 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
2984 let shaped_line =
2985 self.shape_line_number(SharedString::from(&line_number), color, window);
2986 let scroll_top = scroll_position.y * line_height;
2987 let line_origin = gutter_hitbox.map(|hitbox| {
2988 hitbox.origin
2989 + point(
2990 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2991 ix as f32 * line_height - (scroll_top % line_height),
2992 )
2993 });
2994
2995 #[cfg(not(test))]
2996 let hitbox = line_origin.map(|line_origin| {
2997 window.insert_hitbox(
2998 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2999 HitboxBehavior::Normal,
3000 )
3001 });
3002 #[cfg(test)]
3003 let hitbox = {
3004 let _ = line_origin;
3005 None
3006 };
3007
3008 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
3009 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
3010 let line_number = LineNumberLayout {
3011 shaped_line,
3012 hitbox,
3013 };
3014 Some((multi_buffer_row, line_number))
3015 })
3016 .collect();
3017 Arc::new(line_numbers)
3018 }
3019
3020 fn layout_crease_toggles(
3021 &self,
3022 rows: Range<DisplayRow>,
3023 row_infos: &[RowInfo],
3024 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3025 snapshot: &EditorSnapshot,
3026 window: &mut Window,
3027 cx: &mut App,
3028 ) -> Vec<Option<AnyElement>> {
3029 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
3030 && snapshot.mode.is_full()
3031 && self.editor.read(cx).is_singleton(cx);
3032 if include_fold_statuses {
3033 row_infos
3034 .into_iter()
3035 .enumerate()
3036 .map(|(ix, info)| {
3037 if info.expand_info.is_some() {
3038 return None;
3039 }
3040 let row = info.multibuffer_row?;
3041 let display_row = DisplayRow(rows.start.0 + ix as u32);
3042 let active = active_rows.contains_key(&display_row);
3043
3044 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
3045 })
3046 .collect()
3047 } else {
3048 Vec::new()
3049 }
3050 }
3051
3052 fn layout_crease_trailers(
3053 &self,
3054 buffer_rows: impl IntoIterator<Item = RowInfo>,
3055 snapshot: &EditorSnapshot,
3056 window: &mut Window,
3057 cx: &mut App,
3058 ) -> Vec<Option<AnyElement>> {
3059 buffer_rows
3060 .into_iter()
3061 .map(|row_info| {
3062 if row_info.expand_info.is_some() {
3063 return None;
3064 }
3065 if let Some(row) = row_info.multibuffer_row {
3066 snapshot.render_crease_trailer(row, window, cx)
3067 } else {
3068 None
3069 }
3070 })
3071 .collect()
3072 }
3073
3074 fn layout_lines(
3075 rows: Range<DisplayRow>,
3076 snapshot: &EditorSnapshot,
3077 style: &EditorStyle,
3078 editor_width: Pixels,
3079 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3080 window: &mut Window,
3081 cx: &mut App,
3082 ) -> Vec<LineWithInvisibles> {
3083 if rows.start >= rows.end {
3084 return Vec::new();
3085 }
3086
3087 // Show the placeholder when the editor is empty
3088 if snapshot.is_empty() {
3089 let font_size = style.text.font_size.to_pixels(window.rem_size());
3090 let placeholder_color = cx.theme().colors().text_placeholder;
3091 let placeholder_text = snapshot.placeholder_text();
3092
3093 let placeholder_lines = placeholder_text
3094 .as_ref()
3095 .map_or("", AsRef::as_ref)
3096 .split('\n')
3097 .skip(rows.start.0 as usize)
3098 .chain(iter::repeat(""))
3099 .take(rows.len());
3100 placeholder_lines
3101 .map(move |line| {
3102 let run = TextRun {
3103 len: line.len(),
3104 font: style.text.font(),
3105 color: placeholder_color,
3106 background_color: None,
3107 underline: None,
3108 strikethrough: None,
3109 };
3110 let line =
3111 window
3112 .text_system()
3113 .shape_line(line.to_string().into(), font_size, &[run]);
3114 LineWithInvisibles {
3115 width: line.width,
3116 len: line.len,
3117 fragments: smallvec![LineFragment::Text(line)],
3118 invisibles: Vec::new(),
3119 font_size,
3120 }
3121 })
3122 .collect()
3123 } else {
3124 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
3125 LineWithInvisibles::from_chunks(
3126 chunks,
3127 &style,
3128 MAX_LINE_LEN,
3129 rows.len(),
3130 &snapshot.mode,
3131 editor_width,
3132 is_row_soft_wrapped,
3133 window,
3134 cx,
3135 )
3136 }
3137 }
3138
3139 fn prepaint_lines(
3140 &self,
3141 start_row: DisplayRow,
3142 line_layouts: &mut [LineWithInvisibles],
3143 line_height: Pixels,
3144 scroll_pixel_position: gpui::Point<Pixels>,
3145 content_origin: gpui::Point<Pixels>,
3146 window: &mut Window,
3147 cx: &mut App,
3148 ) -> SmallVec<[AnyElement; 1]> {
3149 let mut line_elements = SmallVec::new();
3150 for (ix, line) in line_layouts.iter_mut().enumerate() {
3151 let row = start_row + DisplayRow(ix as u32);
3152 line.prepaint(
3153 line_height,
3154 scroll_pixel_position,
3155 row,
3156 content_origin,
3157 &mut line_elements,
3158 window,
3159 cx,
3160 );
3161 }
3162 line_elements
3163 }
3164
3165 fn render_block(
3166 &self,
3167 block: &Block,
3168 available_width: AvailableSpace,
3169 block_id: BlockId,
3170 block_row_start: DisplayRow,
3171 snapshot: &EditorSnapshot,
3172 text_x: Pixels,
3173 rows: &Range<DisplayRow>,
3174 line_layouts: &[LineWithInvisibles],
3175 editor_margins: &EditorMargins,
3176 line_height: Pixels,
3177 em_width: Pixels,
3178 text_hitbox: &Hitbox,
3179 editor_width: Pixels,
3180 scroll_width: &mut Pixels,
3181 resized_blocks: &mut HashMap<CustomBlockId, u32>,
3182 row_block_types: &mut HashMap<DisplayRow, bool>,
3183 selections: &[Selection<Point>],
3184 selected_buffer_ids: &Vec<BufferId>,
3185 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3186 sticky_header_excerpt_id: Option<ExcerptId>,
3187 window: &mut Window,
3188 cx: &mut App,
3189 ) -> Option<(AnyElement, Size<Pixels>, DisplayRow, Pixels)> {
3190 let mut x_position = None;
3191 let mut element = match block {
3192 Block::Custom(custom) => {
3193 let block_start = custom.start().to_point(&snapshot.buffer_snapshot);
3194 let block_end = custom.end().to_point(&snapshot.buffer_snapshot);
3195 if block.place_near() && snapshot.is_line_folded(MultiBufferRow(block_start.row)) {
3196 return None;
3197 }
3198 let align_to = block_start.to_display_point(snapshot);
3199 let x_and_width = |layout: &LineWithInvisibles| {
3200 Some((
3201 text_x + layout.x_for_index(align_to.column() as usize),
3202 text_x + layout.width,
3203 ))
3204 };
3205 let line_ix = align_to.row().0.checked_sub(rows.start.0);
3206 x_position =
3207 if let Some(layout) = line_ix.and_then(|ix| line_layouts.get(ix as usize)) {
3208 x_and_width(&layout)
3209 } else {
3210 x_and_width(&layout_line(
3211 align_to.row(),
3212 snapshot,
3213 &self.style,
3214 editor_width,
3215 is_row_soft_wrapped,
3216 window,
3217 cx,
3218 ))
3219 };
3220
3221 let anchor_x = x_position.unwrap().0;
3222
3223 let selected = selections
3224 .binary_search_by(|selection| {
3225 if selection.end <= block_start {
3226 Ordering::Less
3227 } else if selection.start >= block_end {
3228 Ordering::Greater
3229 } else {
3230 Ordering::Equal
3231 }
3232 })
3233 .is_ok();
3234
3235 div()
3236 .size_full()
3237 .children(
3238 (!snapshot.mode.is_minimap() || custom.render_in_minimap).then(|| {
3239 custom.render(&mut BlockContext {
3240 window,
3241 app: cx,
3242 anchor_x,
3243 margins: editor_margins,
3244 line_height,
3245 em_width,
3246 block_id,
3247 selected,
3248 max_width: text_hitbox.size.width.max(*scroll_width),
3249 editor_style: &self.style,
3250 })
3251 }),
3252 )
3253 .into_any()
3254 }
3255
3256 Block::FoldedBuffer {
3257 first_excerpt,
3258 height,
3259 ..
3260 } => {
3261 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
3262 let result = v_flex().id(block_id).w_full().pr(editor_margins.right);
3263
3264 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
3265 result
3266 .child(self.render_buffer_header(
3267 first_excerpt,
3268 true,
3269 selected,
3270 false,
3271 jump_data,
3272 window,
3273 cx,
3274 ))
3275 .into_any_element()
3276 }
3277
3278 Block::ExcerptBoundary {
3279 excerpt,
3280 height,
3281 starts_new_buffer,
3282 ..
3283 } => {
3284 let color = cx.theme().colors().clone();
3285 let mut result = v_flex().id(block_id).w_full();
3286
3287 let jump_data = header_jump_data(snapshot, block_row_start, *height, excerpt);
3288
3289 if *starts_new_buffer {
3290 if sticky_header_excerpt_id != Some(excerpt.id) {
3291 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3292
3293 result = result.child(div().pr(editor_margins.right).child(
3294 self.render_buffer_header(
3295 excerpt, false, selected, false, jump_data, window, cx,
3296 ),
3297 ));
3298 } else {
3299 result =
3300 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
3301 }
3302 } else {
3303 result = result.child(
3304 h_flex().relative().child(
3305 div()
3306 .top(line_height / 2.)
3307 .absolute()
3308 .w_full()
3309 .h_px()
3310 .bg(color.border_variant),
3311 ),
3312 );
3313 };
3314
3315 result.into_any()
3316 }
3317 };
3318
3319 // Discover the element's content height, then round up to the nearest multiple of line height.
3320 let preliminary_size = element.layout_as_root(
3321 size(available_width, AvailableSpace::MinContent),
3322 window,
3323 cx,
3324 );
3325 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
3326 let final_size = if preliminary_size.height == quantized_height {
3327 preliminary_size
3328 } else {
3329 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
3330 };
3331 let mut element_height_in_lines = ((final_size.height / line_height).ceil() as u32).max(1);
3332
3333 let mut row = block_row_start;
3334 let mut x_offset = px(0.);
3335 let mut is_block = true;
3336
3337 if let BlockId::Custom(custom_block_id) = block_id {
3338 if block.has_height() {
3339 if block.place_near() {
3340 if let Some((x_target, line_width)) = x_position {
3341 let margin = em_width * 2;
3342 if line_width + final_size.width + margin
3343 < editor_width + editor_margins.gutter.full_width()
3344 && !row_block_types.contains_key(&(row - 1))
3345 && element_height_in_lines == 1
3346 {
3347 x_offset = line_width + margin;
3348 row = row - 1;
3349 is_block = false;
3350 element_height_in_lines = 0;
3351 row_block_types.insert(row, is_block);
3352 } else {
3353 let max_offset = editor_width + editor_margins.gutter.full_width()
3354 - final_size.width;
3355 let min_offset = (x_target + em_width - final_size.width)
3356 .max(editor_margins.gutter.full_width());
3357 x_offset = x_target.min(max_offset).max(min_offset);
3358 }
3359 }
3360 };
3361 if element_height_in_lines != block.height() {
3362 resized_blocks.insert(custom_block_id, element_height_in_lines);
3363 }
3364 }
3365 }
3366 for i in 0..element_height_in_lines {
3367 row_block_types.insert(row + i, is_block);
3368 }
3369
3370 Some((element, final_size, row, x_offset))
3371 }
3372
3373 fn render_buffer_header(
3374 &self,
3375 for_excerpt: &ExcerptInfo,
3376 is_folded: bool,
3377 is_selected: bool,
3378 is_sticky: bool,
3379 jump_data: JumpData,
3380 window: &mut Window,
3381 cx: &mut App,
3382 ) -> Div {
3383 let editor = self.editor.read(cx);
3384 let file_status = editor
3385 .buffer
3386 .read(cx)
3387 .all_diff_hunks_expanded()
3388 .then(|| {
3389 editor
3390 .project
3391 .as_ref()?
3392 .read(cx)
3393 .status_for_buffer_id(for_excerpt.buffer_id, cx)
3394 })
3395 .flatten();
3396
3397 let include_root = editor
3398 .project
3399 .as_ref()
3400 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
3401 .unwrap_or_default();
3402 let can_open_excerpts = Editor::can_open_excerpts_in_file(for_excerpt.buffer.file());
3403 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
3404 let filename = path
3405 .as_ref()
3406 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
3407 let parent_path = path.as_ref().and_then(|path| {
3408 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
3409 });
3410 let focus_handle = editor.focus_handle(cx);
3411 let colors = cx.theme().colors();
3412
3413 div()
3414 .p_1()
3415 .w_full()
3416 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
3417 .child(
3418 h_flex()
3419 .size_full()
3420 .gap_2()
3421 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
3422 .pl_0p5()
3423 .pr_5()
3424 .rounded_sm()
3425 .when(is_sticky, |el| el.shadow_md())
3426 .border_1()
3427 .map(|div| {
3428 let border_color = if is_selected
3429 && is_folded
3430 && focus_handle.contains_focused(window, cx)
3431 {
3432 colors.border_focused
3433 } else {
3434 colors.border
3435 };
3436 div.border_color(border_color)
3437 })
3438 .bg(colors.editor_subheader_background)
3439 .hover(|style| style.bg(colors.element_hover))
3440 .map(|header| {
3441 let editor = self.editor.clone();
3442 let buffer_id = for_excerpt.buffer_id;
3443 let toggle_chevron_icon =
3444 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
3445 header.child(
3446 div()
3447 .hover(|style| style.bg(colors.element_selected))
3448 .rounded_xs()
3449 .child(
3450 ButtonLike::new("toggle-buffer-fold")
3451 .style(ui::ButtonStyle::Transparent)
3452 .height(px(28.).into())
3453 .width(px(28.).into())
3454 .children(toggle_chevron_icon)
3455 .tooltip({
3456 let focus_handle = focus_handle.clone();
3457 move |window, cx| {
3458 Tooltip::for_action_in(
3459 "Toggle Excerpt Fold",
3460 &ToggleFold,
3461 &focus_handle,
3462 window,
3463 cx,
3464 )
3465 }
3466 })
3467 .on_click(move |_, _, cx| {
3468 if is_folded {
3469 editor.update(cx, |editor, cx| {
3470 editor.unfold_buffer(buffer_id, cx);
3471 });
3472 } else {
3473 editor.update(cx, |editor, cx| {
3474 editor.fold_buffer(buffer_id, cx);
3475 });
3476 }
3477 }),
3478 ),
3479 )
3480 })
3481 .children(
3482 editor
3483 .addons
3484 .values()
3485 .filter_map(|addon| {
3486 addon.render_buffer_header_controls(for_excerpt, window, cx)
3487 })
3488 .take(1),
3489 )
3490 .child(
3491 h_flex()
3492 .cursor_pointer()
3493 .id("path header block")
3494 .size_full()
3495 .justify_between()
3496 .child(
3497 h_flex()
3498 .gap_2()
3499 .child(
3500 Label::new(
3501 filename
3502 .map(SharedString::from)
3503 .unwrap_or_else(|| "untitled".into()),
3504 )
3505 .single_line()
3506 .when_some(
3507 file_status,
3508 |el, status| {
3509 el.color(if status.is_conflicted() {
3510 Color::Conflict
3511 } else if status.is_modified() {
3512 Color::Modified
3513 } else if status.is_deleted() {
3514 Color::Disabled
3515 } else {
3516 Color::Created
3517 })
3518 .when(status.is_deleted(), |el| el.strikethrough())
3519 },
3520 ),
3521 )
3522 .when_some(parent_path, |then, path| {
3523 then.child(div().child(path).text_color(
3524 if file_status.is_some_and(FileStatus::is_deleted) {
3525 colors.text_disabled
3526 } else {
3527 colors.text_muted
3528 },
3529 ))
3530 }),
3531 )
3532 .when(can_open_excerpts && is_selected && path.is_some(), |el| {
3533 el.child(
3534 h_flex()
3535 .id("jump-to-file-button")
3536 .gap_2p5()
3537 .child(Label::new("Jump To File"))
3538 .children(
3539 KeyBinding::for_action_in(
3540 &OpenExcerpts,
3541 &focus_handle,
3542 window,
3543 cx,
3544 )
3545 .map(|binding| binding.into_any_element()),
3546 ),
3547 )
3548 })
3549 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
3550 .on_click(window.listener_for(&self.editor, {
3551 move |editor, e: &ClickEvent, window, cx| {
3552 editor.open_excerpts_common(
3553 Some(jump_data.clone()),
3554 e.down.modifiers.secondary(),
3555 window,
3556 cx,
3557 );
3558 }
3559 })),
3560 ),
3561 )
3562 }
3563
3564 fn render_blocks(
3565 &self,
3566 rows: Range<DisplayRow>,
3567 snapshot: &EditorSnapshot,
3568 hitbox: &Hitbox,
3569 text_hitbox: &Hitbox,
3570 editor_width: Pixels,
3571 scroll_width: &mut Pixels,
3572 editor_margins: &EditorMargins,
3573 em_width: Pixels,
3574 text_x: Pixels,
3575 line_height: Pixels,
3576 line_layouts: &mut [LineWithInvisibles],
3577 selections: &[Selection<Point>],
3578 selected_buffer_ids: &Vec<BufferId>,
3579 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3580 sticky_header_excerpt_id: Option<ExcerptId>,
3581 window: &mut Window,
3582 cx: &mut App,
3583 ) -> Result<(Vec<BlockLayout>, HashMap<DisplayRow, bool>), HashMap<CustomBlockId, u32>> {
3584 let (fixed_blocks, non_fixed_blocks) = snapshot
3585 .blocks_in_range(rows.clone())
3586 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
3587
3588 let mut focused_block = self
3589 .editor
3590 .update(cx, |editor, _| editor.take_focused_block());
3591 let mut fixed_block_max_width = Pixels::ZERO;
3592 let mut blocks = Vec::new();
3593 let mut resized_blocks = HashMap::default();
3594 let mut row_block_types = HashMap::default();
3595
3596 for (row, block) in fixed_blocks {
3597 let block_id = block.id();
3598
3599 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3600 focused_block = None;
3601 }
3602
3603 if let Some((element, element_size, row, x_offset)) = self.render_block(
3604 block,
3605 AvailableSpace::MinContent,
3606 block_id,
3607 row,
3608 snapshot,
3609 text_x,
3610 &rows,
3611 line_layouts,
3612 editor_margins,
3613 line_height,
3614 em_width,
3615 text_hitbox,
3616 editor_width,
3617 scroll_width,
3618 &mut resized_blocks,
3619 &mut row_block_types,
3620 selections,
3621 selected_buffer_ids,
3622 is_row_soft_wrapped,
3623 sticky_header_excerpt_id,
3624 window,
3625 cx,
3626 ) {
3627 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
3628 blocks.push(BlockLayout {
3629 id: block_id,
3630 x_offset,
3631 row: Some(row),
3632 element,
3633 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
3634 style: BlockStyle::Fixed,
3635 overlaps_gutter: true,
3636 is_buffer_header: block.is_buffer_header(),
3637 });
3638 }
3639 }
3640
3641 for (row, block) in non_fixed_blocks {
3642 let style = block.style();
3643 let width = match (style, block.place_near()) {
3644 (_, true) => AvailableSpace::MinContent,
3645 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
3646 (BlockStyle::Flex, _) => hitbox
3647 .size
3648 .width
3649 .max(fixed_block_max_width)
3650 .max(editor_margins.gutter.width + *scroll_width)
3651 .into(),
3652 (BlockStyle::Fixed, _) => unreachable!(),
3653 };
3654 let block_id = block.id();
3655
3656 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3657 focused_block = None;
3658 }
3659
3660 if let Some((element, element_size, row, x_offset)) = self.render_block(
3661 block,
3662 width,
3663 block_id,
3664 row,
3665 snapshot,
3666 text_x,
3667 &rows,
3668 line_layouts,
3669 editor_margins,
3670 line_height,
3671 em_width,
3672 text_hitbox,
3673 editor_width,
3674 scroll_width,
3675 &mut resized_blocks,
3676 &mut row_block_types,
3677 selections,
3678 selected_buffer_ids,
3679 is_row_soft_wrapped,
3680 sticky_header_excerpt_id,
3681 window,
3682 cx,
3683 ) {
3684 blocks.push(BlockLayout {
3685 id: block_id,
3686 x_offset,
3687 row: Some(row),
3688 element,
3689 available_space: size(width, element_size.height.into()),
3690 style,
3691 overlaps_gutter: !block.place_near(),
3692 is_buffer_header: block.is_buffer_header(),
3693 });
3694 }
3695 }
3696
3697 if let Some(focused_block) = focused_block {
3698 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
3699 if focus_handle.is_focused(window) {
3700 if let Some(block) = snapshot.block_for_id(focused_block.id) {
3701 let style = block.style();
3702 let width = match style {
3703 BlockStyle::Fixed => AvailableSpace::MinContent,
3704 BlockStyle::Flex => AvailableSpace::Definite(
3705 hitbox
3706 .size
3707 .width
3708 .max(fixed_block_max_width)
3709 .max(editor_margins.gutter.width + *scroll_width),
3710 ),
3711 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
3712 };
3713
3714 if let Some((element, element_size, _, x_offset)) = self.render_block(
3715 &block,
3716 width,
3717 focused_block.id,
3718 rows.end,
3719 snapshot,
3720 text_x,
3721 &rows,
3722 line_layouts,
3723 editor_margins,
3724 line_height,
3725 em_width,
3726 text_hitbox,
3727 editor_width,
3728 scroll_width,
3729 &mut resized_blocks,
3730 &mut row_block_types,
3731 selections,
3732 selected_buffer_ids,
3733 is_row_soft_wrapped,
3734 sticky_header_excerpt_id,
3735 window,
3736 cx,
3737 ) {
3738 blocks.push(BlockLayout {
3739 id: block.id(),
3740 x_offset,
3741 row: None,
3742 element,
3743 available_space: size(width, element_size.height.into()),
3744 style,
3745 overlaps_gutter: true,
3746 is_buffer_header: block.is_buffer_header(),
3747 });
3748 }
3749 }
3750 }
3751 }
3752 }
3753
3754 if resized_blocks.is_empty() {
3755 *scroll_width =
3756 (*scroll_width).max(fixed_block_max_width - editor_margins.gutter.width);
3757 Ok((blocks, row_block_types))
3758 } else {
3759 Err(resized_blocks)
3760 }
3761 }
3762
3763 fn layout_blocks(
3764 &self,
3765 blocks: &mut Vec<BlockLayout>,
3766 hitbox: &Hitbox,
3767 line_height: Pixels,
3768 scroll_pixel_position: gpui::Point<Pixels>,
3769 window: &mut Window,
3770 cx: &mut App,
3771 ) {
3772 for block in blocks {
3773 let mut origin = if let Some(row) = block.row {
3774 hitbox.origin
3775 + point(
3776 block.x_offset,
3777 row.as_f32() * line_height - scroll_pixel_position.y,
3778 )
3779 } else {
3780 // Position the block outside the visible area
3781 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
3782 };
3783
3784 if !matches!(block.style, BlockStyle::Sticky) {
3785 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
3786 }
3787
3788 let focus_handle =
3789 block
3790 .element
3791 .prepaint_as_root(origin, block.available_space, window, cx);
3792
3793 if let Some(focus_handle) = focus_handle {
3794 self.editor.update(cx, |editor, _cx| {
3795 editor.set_focused_block(FocusedBlock {
3796 id: block.id,
3797 focus_handle: focus_handle.downgrade(),
3798 });
3799 });
3800 }
3801 }
3802 }
3803
3804 fn layout_sticky_buffer_header(
3805 &self,
3806 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
3807 scroll_position: f32,
3808 line_height: Pixels,
3809 right_margin: Pixels,
3810 snapshot: &EditorSnapshot,
3811 hitbox: &Hitbox,
3812 selected_buffer_ids: &Vec<BufferId>,
3813 blocks: &[BlockLayout],
3814 window: &mut Window,
3815 cx: &mut App,
3816 ) -> AnyElement {
3817 let jump_data = header_jump_data(
3818 snapshot,
3819 DisplayRow(scroll_position as u32),
3820 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3821 excerpt,
3822 );
3823
3824 let editor_bg_color = cx.theme().colors().editor_background;
3825
3826 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3827
3828 let available_width = hitbox.bounds.size.width - right_margin;
3829
3830 let mut header = v_flex()
3831 .relative()
3832 .child(
3833 div()
3834 .w(available_width)
3835 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3836 .bg(linear_gradient(
3837 0.,
3838 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3839 linear_color_stop(editor_bg_color, 0.6),
3840 ))
3841 .absolute()
3842 .top_0(),
3843 )
3844 .child(
3845 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
3846 .into_any_element(),
3847 )
3848 .into_any_element();
3849
3850 let mut origin = hitbox.origin;
3851 // Move floating header up to avoid colliding with the next buffer header.
3852 for block in blocks.iter() {
3853 if !block.is_buffer_header {
3854 continue;
3855 }
3856
3857 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position as u32) else {
3858 continue;
3859 };
3860
3861 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
3862 let offset = scroll_position - max_row as f32;
3863
3864 if offset > 0.0 {
3865 origin.y -= offset * line_height;
3866 }
3867 break;
3868 }
3869
3870 let size = size(
3871 AvailableSpace::Definite(available_width),
3872 AvailableSpace::MinContent,
3873 );
3874
3875 header.prepaint_as_root(origin, size, window, cx);
3876
3877 header
3878 }
3879
3880 fn layout_cursor_popovers(
3881 &self,
3882 line_height: Pixels,
3883 text_hitbox: &Hitbox,
3884 content_origin: gpui::Point<Pixels>,
3885 right_margin: Pixels,
3886 start_row: DisplayRow,
3887 scroll_pixel_position: gpui::Point<Pixels>,
3888 line_layouts: &[LineWithInvisibles],
3889 cursor: DisplayPoint,
3890 cursor_point: Point,
3891 style: &EditorStyle,
3892 window: &mut Window,
3893 cx: &mut App,
3894 ) -> Option<ContextMenuLayout> {
3895 let mut min_menu_height = Pixels::ZERO;
3896 let mut max_menu_height = Pixels::ZERO;
3897 let mut height_above_menu = Pixels::ZERO;
3898 let height_below_menu = Pixels::ZERO;
3899 let mut edit_prediction_popover_visible = false;
3900 let mut context_menu_visible = false;
3901 let context_menu_placement;
3902
3903 {
3904 let editor = self.editor.read(cx);
3905 if editor
3906 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
3907 {
3908 height_above_menu +=
3909 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3910 edit_prediction_popover_visible = true;
3911 }
3912
3913 if editor.context_menu_visible() {
3914 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3915 let (min_height_in_lines, max_height_in_lines) = editor
3916 .context_menu_options
3917 .as_ref()
3918 .map_or((3, 12), |options| {
3919 (options.min_entries_visible, options.max_entries_visible)
3920 });
3921
3922 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
3923 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
3924 context_menu_visible = true;
3925 }
3926 }
3927 context_menu_placement = editor
3928 .context_menu_options
3929 .as_ref()
3930 .and_then(|options| options.placement.clone());
3931 }
3932
3933 let visible = edit_prediction_popover_visible || context_menu_visible;
3934 if !visible {
3935 return None;
3936 }
3937
3938 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3939 let target_position = content_origin
3940 + gpui::Point {
3941 x: cmp::max(
3942 px(0.),
3943 cursor_row_layout.x_for_index(cursor.column() as usize)
3944 - scroll_pixel_position.x,
3945 ),
3946 y: cmp::max(
3947 px(0.),
3948 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3949 ),
3950 };
3951
3952 let viewport_bounds =
3953 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3954 right: -right_margin - MENU_GAP,
3955 ..Default::default()
3956 });
3957
3958 let min_height = height_above_menu + min_menu_height + height_below_menu;
3959 let max_height = height_above_menu + max_menu_height + height_below_menu;
3960 let (laid_out_popovers, y_flipped) = self.layout_popovers_above_or_below_line(
3961 target_position,
3962 line_height,
3963 min_height,
3964 max_height,
3965 context_menu_placement,
3966 text_hitbox,
3967 viewport_bounds,
3968 window,
3969 cx,
3970 |height, max_width_for_stable_x, y_flipped, window, cx| {
3971 // First layout the menu to get its size - others can be at least this wide.
3972 let context_menu = if context_menu_visible {
3973 let menu_height = if y_flipped {
3974 height - height_below_menu
3975 } else {
3976 height - height_above_menu
3977 };
3978 let mut element = self
3979 .render_context_menu(line_height, menu_height, window, cx)
3980 .expect("Visible context menu should always render.");
3981 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3982 Some((CursorPopoverType::CodeContextMenu, element, size))
3983 } else {
3984 None
3985 };
3986 let min_width = context_menu
3987 .as_ref()
3988 .map_or(px(0.), |(_, _, size)| size.width);
3989 let max_width = max_width_for_stable_x.max(
3990 context_menu
3991 .as_ref()
3992 .map_or(px(0.), |(_, _, size)| size.width),
3993 );
3994
3995 let edit_prediction = if edit_prediction_popover_visible {
3996 self.editor.update(cx, move |editor, cx| {
3997 let accept_binding =
3998 editor.accept_edit_prediction_keybind(false, window, cx);
3999 let mut element = editor.render_edit_prediction_cursor_popover(
4000 min_width,
4001 max_width,
4002 cursor_point,
4003 style,
4004 accept_binding.keystroke(),
4005 window,
4006 cx,
4007 )?;
4008 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4009 Some((CursorPopoverType::EditPrediction, element, size))
4010 })
4011 } else {
4012 None
4013 };
4014 vec![edit_prediction, context_menu]
4015 .into_iter()
4016 .flatten()
4017 .collect::<Vec<_>>()
4018 },
4019 )?;
4020
4021 let (menu_ix, (_, menu_bounds)) = laid_out_popovers
4022 .iter()
4023 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))?;
4024 let last_ix = laid_out_popovers.len() - 1;
4025 let menu_is_last = menu_ix == last_ix;
4026 let first_popover_bounds = laid_out_popovers[0].1;
4027 let last_popover_bounds = laid_out_popovers[last_ix].1;
4028
4029 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
4030 // right, and otherwise it goes below or to the right.
4031 let mut target_bounds = Bounds::from_corners(
4032 first_popover_bounds.origin,
4033 last_popover_bounds.bottom_right(),
4034 );
4035 target_bounds.size.width = menu_bounds.size.width;
4036
4037 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
4038 // based on this is preferred for layout stability.
4039 let mut max_target_bounds = target_bounds;
4040 max_target_bounds.size.height = max_height;
4041 if y_flipped {
4042 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
4043 }
4044
4045 // Add spacing around `target_bounds` and `max_target_bounds`.
4046 let mut extend_amount = Edges::all(MENU_GAP);
4047 if y_flipped {
4048 extend_amount.bottom = line_height;
4049 } else {
4050 extend_amount.top = line_height;
4051 }
4052 let target_bounds = target_bounds.extend(extend_amount);
4053 let max_target_bounds = max_target_bounds.extend(extend_amount);
4054
4055 let must_place_above_or_below =
4056 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
4057 laid_out_popovers[menu_ix + 1..]
4058 .iter()
4059 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
4060 } else {
4061 false
4062 };
4063
4064 let aside_bounds = self.layout_context_menu_aside(
4065 y_flipped,
4066 *menu_bounds,
4067 target_bounds,
4068 max_target_bounds,
4069 max_menu_height,
4070 must_place_above_or_below,
4071 text_hitbox,
4072 viewport_bounds,
4073 window,
4074 cx,
4075 );
4076
4077 if let Some(menu_bounds) = laid_out_popovers.iter().find_map(|(popover_type, bounds)| {
4078 if matches!(popover_type, CursorPopoverType::CodeContextMenu) {
4079 Some(*bounds)
4080 } else {
4081 None
4082 }
4083 }) {
4084 let bounds = if let Some(aside_bounds) = aside_bounds {
4085 menu_bounds.union(&aside_bounds)
4086 } else {
4087 menu_bounds
4088 };
4089 return Some(ContextMenuLayout { y_flipped, bounds });
4090 }
4091
4092 None
4093 }
4094
4095 fn layout_gutter_menu(
4096 &self,
4097 line_height: Pixels,
4098 text_hitbox: &Hitbox,
4099 content_origin: gpui::Point<Pixels>,
4100 right_margin: Pixels,
4101 scroll_pixel_position: gpui::Point<Pixels>,
4102 gutter_overshoot: Pixels,
4103 window: &mut Window,
4104 cx: &mut App,
4105 ) {
4106 let editor = self.editor.read(cx);
4107 if !editor.context_menu_visible() {
4108 return;
4109 }
4110 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
4111 editor.context_menu_origin()
4112 else {
4113 return;
4114 };
4115 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
4116 // indicator than just a plain first column of the text field.
4117 let target_position = content_origin
4118 + gpui::Point {
4119 x: -gutter_overshoot,
4120 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
4121 };
4122
4123 let (min_height_in_lines, max_height_in_lines) = editor
4124 .context_menu_options
4125 .as_ref()
4126 .map_or((3, 12), |options| {
4127 (options.min_entries_visible, options.max_entries_visible)
4128 });
4129
4130 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4131 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4132 let viewport_bounds =
4133 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4134 right: -right_margin - MENU_GAP,
4135 ..Default::default()
4136 });
4137 self.layout_popovers_above_or_below_line(
4138 target_position,
4139 line_height,
4140 min_height,
4141 max_height,
4142 editor
4143 .context_menu_options
4144 .as_ref()
4145 .and_then(|options| options.placement.clone()),
4146 text_hitbox,
4147 viewport_bounds,
4148 window,
4149 cx,
4150 move |height, _max_width_for_stable_x, _, window, cx| {
4151 let mut element = self
4152 .render_context_menu(line_height, height, window, cx)
4153 .expect("Visible context menu should always render.");
4154 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4155 vec![(CursorPopoverType::CodeContextMenu, element, size)]
4156 },
4157 );
4158 }
4159
4160 fn layout_popovers_above_or_below_line(
4161 &self,
4162 target_position: gpui::Point<Pixels>,
4163 line_height: Pixels,
4164 min_height: Pixels,
4165 max_height: Pixels,
4166 placement: Option<ContextMenuPlacement>,
4167 text_hitbox: &Hitbox,
4168 viewport_bounds: Bounds<Pixels>,
4169 window: &mut Window,
4170 cx: &mut App,
4171 make_sized_popovers: impl FnOnce(
4172 Pixels,
4173 Pixels,
4174 bool,
4175 &mut Window,
4176 &mut App,
4177 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
4178 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
4179 let text_style = TextStyleRefinement {
4180 line_height: Some(DefiniteLength::Fraction(
4181 BufferLineHeight::Comfortable.value(),
4182 )),
4183 ..Default::default()
4184 };
4185 window.with_text_style(Some(text_style), |window| {
4186 // If the max height won't fit below and there is more space above, put it above the line.
4187 let bottom_y_when_flipped = target_position.y - line_height;
4188 let available_above = bottom_y_when_flipped - text_hitbox.top();
4189 let available_below = text_hitbox.bottom() - target_position.y;
4190 let y_overflows_below = max_height > available_below;
4191 let mut y_flipped = match placement {
4192 Some(ContextMenuPlacement::Above) => true,
4193 Some(ContextMenuPlacement::Below) => false,
4194 None => y_overflows_below && available_above > available_below,
4195 };
4196 let mut height = cmp::min(
4197 max_height,
4198 if y_flipped {
4199 available_above
4200 } else {
4201 available_below
4202 },
4203 );
4204
4205 // If the min height doesn't fit within text bounds, instead fit within the window.
4206 if height < min_height {
4207 let available_above = bottom_y_when_flipped;
4208 let available_below = viewport_bounds.bottom() - target_position.y;
4209 let (y_flipped_override, height_override) = match placement {
4210 Some(ContextMenuPlacement::Above) => {
4211 (true, cmp::min(available_above, min_height))
4212 }
4213 Some(ContextMenuPlacement::Below) => {
4214 (false, cmp::min(available_below, min_height))
4215 }
4216 None => {
4217 if available_below > min_height {
4218 (false, min_height)
4219 } else if available_above > min_height {
4220 (true, min_height)
4221 } else if available_above > available_below {
4222 (true, available_above)
4223 } else {
4224 (false, available_below)
4225 }
4226 }
4227 };
4228 y_flipped = y_flipped_override;
4229 height = height_override;
4230 }
4231
4232 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
4233
4234 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
4235 // for very narrow windows.
4236 let popovers =
4237 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
4238 if popovers.is_empty() {
4239 return None;
4240 }
4241
4242 let max_width = popovers
4243 .iter()
4244 .map(|(_, _, size)| size.width)
4245 .max()
4246 .unwrap_or_default();
4247
4248 let mut current_position = gpui::Point {
4249 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
4250 // overflow. Include space for the scrollbar.
4251 x: target_position
4252 .x
4253 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
4254 y: if y_flipped {
4255 bottom_y_when_flipped
4256 } else {
4257 target_position.y
4258 },
4259 };
4260
4261 let mut laid_out_popovers = popovers
4262 .into_iter()
4263 .map(|(popover_type, element, size)| {
4264 if y_flipped {
4265 current_position.y -= size.height;
4266 }
4267 let position = current_position;
4268 window.defer_draw(element, current_position, 1);
4269 if !y_flipped {
4270 current_position.y += size.height + MENU_GAP;
4271 } else {
4272 current_position.y -= MENU_GAP;
4273 }
4274 (popover_type, Bounds::new(position, size))
4275 })
4276 .collect::<Vec<_>>();
4277
4278 if y_flipped {
4279 laid_out_popovers.reverse();
4280 }
4281
4282 Some((laid_out_popovers, y_flipped))
4283 })
4284 }
4285
4286 fn layout_context_menu_aside(
4287 &self,
4288 y_flipped: bool,
4289 menu_bounds: Bounds<Pixels>,
4290 target_bounds: Bounds<Pixels>,
4291 max_target_bounds: Bounds<Pixels>,
4292 max_height: Pixels,
4293 must_place_above_or_below: bool,
4294 text_hitbox: &Hitbox,
4295 viewport_bounds: Bounds<Pixels>,
4296 window: &mut Window,
4297 cx: &mut App,
4298 ) -> Option<Bounds<Pixels>> {
4299 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
4300 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
4301 && !must_place_above_or_below
4302 {
4303 let max_width = cmp::min(
4304 available_within_viewport.right - px(1.),
4305 MENU_ASIDE_MAX_WIDTH,
4306 );
4307 let mut aside = self.render_context_menu_aside(
4308 size(max_width, max_height - POPOVER_Y_PADDING),
4309 window,
4310 cx,
4311 )?;
4312 let size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
4313 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
4314 Some((aside, right_position, size))
4315 } else {
4316 let max_size = size(
4317 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
4318 // won't be needed here.
4319 cmp::min(
4320 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
4321 viewport_bounds.right(),
4322 ),
4323 cmp::min(
4324 max_height,
4325 cmp::max(
4326 available_within_viewport.top,
4327 available_within_viewport.bottom,
4328 ),
4329 ) - POPOVER_Y_PADDING,
4330 );
4331 let mut aside = self.render_context_menu_aside(max_size, window, cx)?;
4332 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
4333
4334 let top_position = point(
4335 menu_bounds.origin.x,
4336 target_bounds.top() - actual_size.height,
4337 );
4338 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
4339
4340 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
4341 // Prefer to fit on the same side of the line as the menu, then on the other side of
4342 // the line.
4343 if !y_flipped && wanted.height < available.bottom {
4344 Some(bottom_position)
4345 } else if !y_flipped && wanted.height < available.top {
4346 Some(top_position)
4347 } else if y_flipped && wanted.height < available.top {
4348 Some(top_position)
4349 } else if y_flipped && wanted.height < available.bottom {
4350 Some(bottom_position)
4351 } else {
4352 None
4353 }
4354 };
4355
4356 // Prefer choosing a direction using max sizes rather than actual size for stability.
4357 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
4358 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
4359 let aside_position = fit_within(available_within_text, wanted)
4360 // Fallback: fit max size in window.
4361 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
4362 // Fallback: fit actual size in window.
4363 .or_else(|| fit_within(available_within_viewport, actual_size));
4364
4365 aside_position.map(|position| (aside, position, actual_size))
4366 };
4367
4368 // Skip drawing if it doesn't fit anywhere.
4369 if let Some((aside, position, size)) = positioned_aside {
4370 let aside_bounds = Bounds::new(position, size);
4371 window.defer_draw(aside, position, 2);
4372 return Some(aside_bounds);
4373 }
4374
4375 None
4376 }
4377
4378 fn render_context_menu(
4379 &self,
4380 line_height: Pixels,
4381 height: Pixels,
4382 window: &mut Window,
4383 cx: &mut App,
4384 ) -> Option<AnyElement> {
4385 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
4386 self.editor.update(cx, |editor, cx| {
4387 editor.render_context_menu(&self.style, max_height_in_lines, window, cx)
4388 })
4389 }
4390
4391 fn render_context_menu_aside(
4392 &self,
4393 max_size: Size<Pixels>,
4394 window: &mut Window,
4395 cx: &mut App,
4396 ) -> Option<AnyElement> {
4397 if max_size.width < px(100.) || max_size.height < px(12.) {
4398 None
4399 } else {
4400 self.editor.update(cx, |editor, cx| {
4401 editor.render_context_menu_aside(max_size, window, cx)
4402 })
4403 }
4404 }
4405
4406 fn layout_mouse_context_menu(
4407 &self,
4408 editor_snapshot: &EditorSnapshot,
4409 visible_range: Range<DisplayRow>,
4410 content_origin: gpui::Point<Pixels>,
4411 window: &mut Window,
4412 cx: &mut App,
4413 ) -> Option<AnyElement> {
4414 let position = self.editor.update(cx, |editor, _cx| {
4415 let visible_start_point = editor.display_to_pixel_point(
4416 DisplayPoint::new(visible_range.start, 0),
4417 editor_snapshot,
4418 window,
4419 )?;
4420 let visible_end_point = editor.display_to_pixel_point(
4421 DisplayPoint::new(visible_range.end, 0),
4422 editor_snapshot,
4423 window,
4424 )?;
4425
4426 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
4427 let (source_display_point, position) = match mouse_context_menu.position {
4428 MenuPosition::PinnedToScreen(point) => (None, point),
4429 MenuPosition::PinnedToEditor { source, offset } => {
4430 let source_display_point = source.to_display_point(editor_snapshot);
4431 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
4432 let position = content_origin + source_point + offset;
4433 (Some(source_display_point), position)
4434 }
4435 };
4436
4437 let source_included = source_display_point.map_or(true, |source_display_point| {
4438 visible_range
4439 .to_inclusive()
4440 .contains(&source_display_point.row())
4441 });
4442 let position_included =
4443 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
4444 if !source_included && !position_included {
4445 None
4446 } else {
4447 Some(position)
4448 }
4449 })?;
4450
4451 let text_style = TextStyleRefinement {
4452 line_height: Some(DefiniteLength::Fraction(
4453 BufferLineHeight::Comfortable.value(),
4454 )),
4455 ..Default::default()
4456 };
4457 window.with_text_style(Some(text_style), |window| {
4458 let mut element = self.editor.read_with(cx, |editor, _| {
4459 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
4460 let context_menu = mouse_context_menu.context_menu.clone();
4461
4462 Some(
4463 deferred(
4464 anchored()
4465 .position(position)
4466 .child(context_menu)
4467 .anchor(Corner::TopLeft)
4468 .snap_to_window_with_margin(px(8.)),
4469 )
4470 .with_priority(1)
4471 .into_any(),
4472 )
4473 })?;
4474
4475 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
4476 Some(element)
4477 })
4478 }
4479
4480 fn layout_hover_popovers(
4481 &self,
4482 snapshot: &EditorSnapshot,
4483 hitbox: &Hitbox,
4484 visible_display_row_range: Range<DisplayRow>,
4485 content_origin: gpui::Point<Pixels>,
4486 scroll_pixel_position: gpui::Point<Pixels>,
4487 line_layouts: &[LineWithInvisibles],
4488 line_height: Pixels,
4489 em_width: Pixels,
4490 context_menu_layout: Option<ContextMenuLayout>,
4491 window: &mut Window,
4492 cx: &mut App,
4493 ) {
4494 struct MeasuredHoverPopover {
4495 element: AnyElement,
4496 size: Size<Pixels>,
4497 horizontal_offset: Pixels,
4498 }
4499
4500 let max_size = size(
4501 (120. * em_width) // Default size
4502 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4503 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4504 (16. * line_height) // Default size
4505 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4506 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4507 );
4508
4509 let hover_popovers = self.editor.update(cx, |editor, cx| {
4510 editor.hover_state.render(
4511 snapshot,
4512 visible_display_row_range.clone(),
4513 max_size,
4514 window,
4515 cx,
4516 )
4517 });
4518 let Some((position, hover_popovers)) = hover_popovers else {
4519 return;
4520 };
4521
4522 // This is safe because we check on layout whether the required row is available
4523 let hovered_row_layout =
4524 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
4525
4526 // Compute Hovered Point
4527 let x =
4528 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
4529 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
4530 let hovered_point = content_origin + point(x, y);
4531
4532 let mut overall_height = Pixels::ZERO;
4533 let mut measured_hover_popovers = Vec::new();
4534 for (position, mut hover_popover) in hover_popovers.into_iter().with_position() {
4535 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
4536 let horizontal_offset =
4537 (hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
4538 .min(Pixels::ZERO);
4539 match position {
4540 itertools::Position::Middle | itertools::Position::Last => {
4541 overall_height += HOVER_POPOVER_GAP
4542 }
4543 _ => {}
4544 }
4545 overall_height += size.height;
4546 measured_hover_popovers.push(MeasuredHoverPopover {
4547 element: hover_popover,
4548 size,
4549 horizontal_offset,
4550 });
4551 }
4552
4553 fn draw_occluder(
4554 width: Pixels,
4555 origin: gpui::Point<Pixels>,
4556 window: &mut Window,
4557 cx: &mut App,
4558 ) {
4559 let mut occlusion = div()
4560 .size_full()
4561 .occlude()
4562 .on_mouse_move(|_, _, cx| cx.stop_propagation())
4563 .into_any_element();
4564 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
4565 window.defer_draw(occlusion, origin, 2);
4566 }
4567
4568 fn place_popovers_above(
4569 hovered_point: gpui::Point<Pixels>,
4570 measured_hover_popovers: Vec<MeasuredHoverPopover>,
4571 window: &mut Window,
4572 cx: &mut App,
4573 ) {
4574 let mut current_y = hovered_point.y;
4575 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4576 let size = popover.size;
4577 let popover_origin = point(
4578 hovered_point.x + popover.horizontal_offset,
4579 current_y - size.height,
4580 );
4581
4582 window.defer_draw(popover.element, popover_origin, 2);
4583 if position != itertools::Position::Last {
4584 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
4585 draw_occluder(size.width, origin, window, cx);
4586 }
4587
4588 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4589 }
4590 }
4591
4592 fn place_popovers_below(
4593 hovered_point: gpui::Point<Pixels>,
4594 measured_hover_popovers: Vec<MeasuredHoverPopover>,
4595 line_height: Pixels,
4596 window: &mut Window,
4597 cx: &mut App,
4598 ) {
4599 let mut current_y = hovered_point.y + line_height;
4600 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4601 let size = popover.size;
4602 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4603
4604 window.defer_draw(popover.element, popover_origin, 2);
4605 if position != itertools::Position::Last {
4606 let origin = point(popover_origin.x, popover_origin.y + size.height);
4607 draw_occluder(size.width, origin, window, cx);
4608 }
4609
4610 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4611 }
4612 }
4613
4614 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
4615 context_menu_layout
4616 .as_ref()
4617 .map_or(false, |menu| bounds.intersects(&menu.bounds))
4618 };
4619
4620 let can_place_above = {
4621 let mut bounds_above = Vec::new();
4622 let mut current_y = hovered_point.y;
4623 for popover in &measured_hover_popovers {
4624 let size = popover.size;
4625 let popover_origin = point(
4626 hovered_point.x + popover.horizontal_offset,
4627 current_y - size.height,
4628 );
4629 bounds_above.push(Bounds::new(popover_origin, size));
4630 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4631 }
4632 bounds_above
4633 .iter()
4634 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
4635 };
4636
4637 let can_place_below = || {
4638 let mut bounds_below = Vec::new();
4639 let mut current_y = hovered_point.y + line_height;
4640 for popover in &measured_hover_popovers {
4641 let size = popover.size;
4642 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4643 bounds_below.push(Bounds::new(popover_origin, size));
4644 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4645 }
4646 bounds_below
4647 .iter()
4648 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
4649 };
4650
4651 if can_place_above {
4652 // try placing above hovered point
4653 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
4654 } else if can_place_below() {
4655 // try placing below hovered point
4656 place_popovers_below(
4657 hovered_point,
4658 measured_hover_popovers,
4659 line_height,
4660 window,
4661 cx,
4662 );
4663 } else {
4664 // try to place popovers around the context menu
4665 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
4666 let total_width = measured_hover_popovers
4667 .iter()
4668 .map(|p| p.size.width)
4669 .max()
4670 .unwrap_or(Pixels::ZERO);
4671 let y_for_horizontal_positioning = if menu.y_flipped {
4672 menu.bounds.bottom() - overall_height
4673 } else {
4674 menu.bounds.top()
4675 };
4676 let possible_origins = vec![
4677 // left of context menu
4678 point(
4679 menu.bounds.left() - total_width - HOVER_POPOVER_GAP,
4680 y_for_horizontal_positioning,
4681 ),
4682 // right of context menu
4683 point(
4684 menu.bounds.right() + HOVER_POPOVER_GAP,
4685 y_for_horizontal_positioning,
4686 ),
4687 // top of context menu
4688 point(
4689 menu.bounds.left(),
4690 menu.bounds.top() - overall_height - HOVER_POPOVER_GAP,
4691 ),
4692 // bottom of context menu
4693 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
4694 ];
4695 possible_origins.into_iter().find(|&origin| {
4696 Bounds::new(origin, size(total_width, overall_height))
4697 .is_contained_within(hitbox)
4698 })
4699 });
4700 if let Some(origin) = origin_surrounding_menu {
4701 let mut current_y = origin.y;
4702 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4703 let size = popover.size;
4704 let popover_origin = point(origin.x, current_y);
4705
4706 window.defer_draw(popover.element, popover_origin, 2);
4707 if position != itertools::Position::Last {
4708 let origin = point(popover_origin.x, popover_origin.y + size.height);
4709 draw_occluder(size.width, origin, window, cx);
4710 }
4711
4712 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4713 }
4714 } else {
4715 // fallback to existing above/below cursor logic
4716 // this might overlap menu or overflow in rare case
4717 if can_place_above {
4718 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
4719 } else {
4720 place_popovers_below(
4721 hovered_point,
4722 measured_hover_popovers,
4723 line_height,
4724 window,
4725 cx,
4726 );
4727 }
4728 }
4729 }
4730 }
4731
4732 fn layout_diff_hunk_controls(
4733 &self,
4734 row_range: Range<DisplayRow>,
4735 row_infos: &[RowInfo],
4736 text_hitbox: &Hitbox,
4737 position_map: &PositionMap,
4738 newest_cursor_position: Option<DisplayPoint>,
4739 line_height: Pixels,
4740 right_margin: Pixels,
4741 scroll_pixel_position: gpui::Point<Pixels>,
4742 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
4743 highlighted_rows: &BTreeMap<DisplayRow, LineHighlight>,
4744 editor: Entity<Editor>,
4745 window: &mut Window,
4746 cx: &mut App,
4747 ) -> Vec<AnyElement> {
4748 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
4749 let point_for_position = position_map.point_for_position(window.mouse_position());
4750
4751 let mut controls = vec![];
4752
4753 let active_positions = [
4754 Some(point_for_position.previous_valid),
4755 newest_cursor_position,
4756 ];
4757
4758 for (hunk, _) in display_hunks {
4759 if let DisplayDiffHunk::Unfolded {
4760 display_row_range,
4761 multi_buffer_range,
4762 status,
4763 is_created_file,
4764 ..
4765 } = &hunk
4766 {
4767 if display_row_range.start < row_range.start
4768 || display_row_range.start >= row_range.end
4769 {
4770 continue;
4771 }
4772 if highlighted_rows
4773 .get(&display_row_range.start)
4774 .and_then(|highlight| highlight.type_id)
4775 .is_some_and(|type_id| {
4776 [
4777 TypeId::of::<ConflictsOuter>(),
4778 TypeId::of::<ConflictsOursMarker>(),
4779 TypeId::of::<ConflictsOurs>(),
4780 TypeId::of::<ConflictsTheirs>(),
4781 TypeId::of::<ConflictsTheirsMarker>(),
4782 ]
4783 .contains(&type_id)
4784 })
4785 {
4786 continue;
4787 }
4788 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4789 if row_infos[row_ix].diff_status.is_none() {
4790 continue;
4791 }
4792 if row_infos[row_ix]
4793 .diff_status
4794 .is_some_and(|status| status.is_added())
4795 && !status.is_added()
4796 {
4797 continue;
4798 }
4799 if active_positions
4800 .iter()
4801 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4802 {
4803 let y = display_row_range.start.as_f32() * line_height
4804 + text_hitbox.bounds.top()
4805 - scroll_pixel_position.y;
4806
4807 let mut element = render_diff_hunk_controls(
4808 display_row_range.start.0,
4809 status,
4810 multi_buffer_range.clone(),
4811 *is_created_file,
4812 line_height,
4813 &editor,
4814 window,
4815 cx,
4816 );
4817 let size =
4818 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
4819
4820 let x = text_hitbox.bounds.right() - right_margin - px(10.) - size.width;
4821
4822 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
4823 element.prepaint(window, cx)
4824 });
4825 controls.push(element);
4826 }
4827 }
4828 }
4829
4830 controls
4831 }
4832
4833 fn layout_signature_help(
4834 &self,
4835 hitbox: &Hitbox,
4836 content_origin: gpui::Point<Pixels>,
4837 scroll_pixel_position: gpui::Point<Pixels>,
4838 newest_selection_head: Option<DisplayPoint>,
4839 start_row: DisplayRow,
4840 line_layouts: &[LineWithInvisibles],
4841 line_height: Pixels,
4842 em_width: Pixels,
4843 context_menu_layout: Option<ContextMenuLayout>,
4844 window: &mut Window,
4845 cx: &mut App,
4846 ) {
4847 if !self.editor.focus_handle(cx).is_focused(window) {
4848 return;
4849 }
4850 let Some(newest_selection_head) = newest_selection_head else {
4851 return;
4852 };
4853
4854 let max_size = size(
4855 (120. * em_width) // Default size
4856 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4857 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4858 (16. * line_height) // Default size
4859 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4860 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4861 );
4862
4863 let maybe_element = self.editor.update(cx, |editor, cx| {
4864 if let Some(popover) = editor.signature_help_state.popover_mut() {
4865 let element = popover.render(max_size, cx);
4866 Some(element)
4867 } else {
4868 None
4869 }
4870 });
4871 let Some(mut element) = maybe_element else {
4872 return;
4873 };
4874
4875 let selection_row = newest_selection_head.row();
4876 let Some(cursor_row_layout) = (selection_row >= start_row)
4877 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
4878 .flatten()
4879 else {
4880 return;
4881 };
4882
4883 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4884 - scroll_pixel_position.x;
4885 let target_y = selection_row.as_f32() * line_height - scroll_pixel_position.y;
4886 let target_point = content_origin + point(target_x, target_y);
4887
4888 let actual_size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4889
4890 let (popover_bounds_above, popover_bounds_below) = {
4891 let horizontal_offset = (hitbox.top_right().x
4892 - POPOVER_RIGHT_OFFSET
4893 - (target_point.x + actual_size.width))
4894 .min(Pixels::ZERO);
4895 let initial_x = target_point.x + horizontal_offset;
4896 (
4897 Bounds::new(
4898 point(initial_x, target_point.y - actual_size.height),
4899 actual_size,
4900 ),
4901 Bounds::new(
4902 point(initial_x, target_point.y + line_height + HOVER_POPOVER_GAP),
4903 actual_size,
4904 ),
4905 )
4906 };
4907
4908 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
4909 context_menu_layout
4910 .as_ref()
4911 .map_or(false, |menu| bounds.intersects(&menu.bounds))
4912 };
4913
4914 let final_origin = if popover_bounds_above.is_contained_within(hitbox)
4915 && !intersects_menu(popover_bounds_above)
4916 {
4917 // try placing above cursor
4918 popover_bounds_above.origin
4919 } else if popover_bounds_below.is_contained_within(hitbox)
4920 && !intersects_menu(popover_bounds_below)
4921 {
4922 // try placing below cursor
4923 popover_bounds_below.origin
4924 } else {
4925 // try surrounding context menu if exists
4926 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
4927 let y_for_horizontal_positioning = if menu.y_flipped {
4928 menu.bounds.bottom() - actual_size.height
4929 } else {
4930 menu.bounds.top()
4931 };
4932 let possible_origins = vec![
4933 // left of context menu
4934 point(
4935 menu.bounds.left() - actual_size.width - HOVER_POPOVER_GAP,
4936 y_for_horizontal_positioning,
4937 ),
4938 // right of context menu
4939 point(
4940 menu.bounds.right() + HOVER_POPOVER_GAP,
4941 y_for_horizontal_positioning,
4942 ),
4943 // top of context menu
4944 point(
4945 menu.bounds.left(),
4946 menu.bounds.top() - actual_size.height - HOVER_POPOVER_GAP,
4947 ),
4948 // bottom of context menu
4949 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
4950 ];
4951 possible_origins
4952 .into_iter()
4953 .find(|&origin| Bounds::new(origin, actual_size).is_contained_within(hitbox))
4954 });
4955 origin_surrounding_menu.unwrap_or_else(|| {
4956 // fallback to existing above/below cursor logic
4957 // this might overlap menu or overflow in rare case
4958 if popover_bounds_above.is_contained_within(hitbox) {
4959 popover_bounds_above.origin
4960 } else {
4961 popover_bounds_below.origin
4962 }
4963 })
4964 };
4965
4966 window.defer_draw(element, final_origin, 2);
4967 }
4968
4969 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4970 window.paint_layer(layout.hitbox.bounds, |window| {
4971 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4972 let gutter_bg = cx.theme().colors().editor_gutter_background;
4973 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4974 window.paint_quad(fill(
4975 layout.position_map.text_hitbox.bounds,
4976 self.style.background,
4977 ));
4978
4979 if matches!(
4980 layout.mode,
4981 EditorMode::Full { .. } | EditorMode::Minimap { .. }
4982 ) {
4983 let show_active_line_background = match layout.mode {
4984 EditorMode::Full {
4985 show_active_line_background,
4986 ..
4987 } => show_active_line_background,
4988 EditorMode::Minimap { .. } => true,
4989 _ => false,
4990 };
4991 let mut active_rows = layout.active_rows.iter().peekable();
4992 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4993 let mut end_row = start_row.0;
4994 while active_rows
4995 .peek()
4996 .map_or(false, |(active_row, has_selection)| {
4997 active_row.0 == end_row + 1
4998 && has_selection.selection == contains_non_empty_selection.selection
4999 })
5000 {
5001 active_rows.next().unwrap();
5002 end_row += 1;
5003 }
5004
5005 if show_active_line_background && !contains_non_empty_selection.selection {
5006 let highlight_h_range =
5007 match layout.position_map.snapshot.current_line_highlight {
5008 CurrentLineHighlight::Gutter => Some(Range {
5009 start: layout.hitbox.left(),
5010 end: layout.gutter_hitbox.right(),
5011 }),
5012 CurrentLineHighlight::Line => Some(Range {
5013 start: layout.position_map.text_hitbox.bounds.left(),
5014 end: layout.position_map.text_hitbox.bounds.right(),
5015 }),
5016 CurrentLineHighlight::All => Some(Range {
5017 start: layout.hitbox.left(),
5018 end: layout.hitbox.right(),
5019 }),
5020 CurrentLineHighlight::None => None,
5021 };
5022 if let Some(range) = highlight_h_range {
5023 let active_line_bg = cx.theme().colors().editor_active_line_background;
5024 let bounds = Bounds {
5025 origin: point(
5026 range.start,
5027 layout.hitbox.origin.y
5028 + (start_row.as_f32() - scroll_top)
5029 * layout.position_map.line_height,
5030 ),
5031 size: size(
5032 range.end - range.start,
5033 layout.position_map.line_height
5034 * (end_row - start_row.0 + 1) as f32,
5035 ),
5036 };
5037 window.paint_quad(fill(bounds, active_line_bg));
5038 }
5039 }
5040 }
5041
5042 let mut paint_highlight = |highlight_row_start: DisplayRow,
5043 highlight_row_end: DisplayRow,
5044 highlight: crate::LineHighlight,
5045 edges| {
5046 let mut origin_x = layout.hitbox.left();
5047 let mut width = layout.hitbox.size.width;
5048 if !highlight.include_gutter {
5049 origin_x += layout.gutter_hitbox.size.width;
5050 width -= layout.gutter_hitbox.size.width;
5051 }
5052
5053 let origin = point(
5054 origin_x,
5055 layout.hitbox.origin.y
5056 + (highlight_row_start.as_f32() - scroll_top)
5057 * layout.position_map.line_height,
5058 );
5059 let size = size(
5060 width,
5061 layout.position_map.line_height
5062 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
5063 );
5064 let mut quad = fill(Bounds { origin, size }, highlight.background);
5065 if let Some(border_color) = highlight.border {
5066 quad.border_color = border_color;
5067 quad.border_widths = edges
5068 }
5069 window.paint_quad(quad);
5070 };
5071
5072 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
5073 None;
5074 for (&new_row, &new_background) in &layout.highlighted_rows {
5075 match &mut current_paint {
5076 &mut Some((current_background, ref mut current_range, mut edges)) => {
5077 let new_range_started = current_background != new_background
5078 || current_range.end.next_row() != new_row;
5079 if new_range_started {
5080 if current_range.end.next_row() == new_row {
5081 edges.bottom = px(0.);
5082 };
5083 paint_highlight(
5084 current_range.start,
5085 current_range.end,
5086 current_background,
5087 edges,
5088 );
5089 let edges = Edges {
5090 top: if current_range.end.next_row() != new_row {
5091 px(1.)
5092 } else {
5093 px(0.)
5094 },
5095 bottom: px(1.),
5096 ..Default::default()
5097 };
5098 current_paint = Some((new_background, new_row..new_row, edges));
5099 continue;
5100 } else {
5101 current_range.end = current_range.end.next_row();
5102 }
5103 }
5104 None => {
5105 let edges = Edges {
5106 top: px(1.),
5107 bottom: px(1.),
5108 ..Default::default()
5109 };
5110 current_paint = Some((new_background, new_row..new_row, edges))
5111 }
5112 };
5113 }
5114 if let Some((color, range, edges)) = current_paint {
5115 paint_highlight(range.start, range.end, color, edges);
5116 }
5117
5118 let scroll_left =
5119 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
5120
5121 for (wrap_position, active) in layout.wrap_guides.iter() {
5122 let x = (layout.position_map.text_hitbox.origin.x
5123 + *wrap_position
5124 + layout.position_map.em_width / 2.)
5125 - scroll_left;
5126
5127 let show_scrollbars = layout
5128 .scrollbars_layout
5129 .as_ref()
5130 .map_or(false, |layout| layout.visible);
5131
5132 if x < layout.position_map.text_hitbox.origin.x
5133 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
5134 {
5135 continue;
5136 }
5137
5138 let color = if *active {
5139 cx.theme().colors().editor_active_wrap_guide
5140 } else {
5141 cx.theme().colors().editor_wrap_guide
5142 };
5143 window.paint_quad(fill(
5144 Bounds {
5145 origin: point(x, layout.position_map.text_hitbox.origin.y),
5146 size: size(px(1.), layout.position_map.text_hitbox.size.height),
5147 },
5148 color,
5149 ));
5150 }
5151 }
5152 })
5153 }
5154
5155 fn paint_indent_guides(
5156 &mut self,
5157 layout: &mut EditorLayout,
5158 window: &mut Window,
5159 cx: &mut App,
5160 ) {
5161 let Some(indent_guides) = &layout.indent_guides else {
5162 return;
5163 };
5164
5165 let faded_color = |color: Hsla, alpha: f32| {
5166 let mut faded = color;
5167 faded.a = alpha;
5168 faded
5169 };
5170
5171 for indent_guide in indent_guides {
5172 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
5173 let settings = indent_guide.settings;
5174
5175 // TODO fixed for now, expose them through themes later
5176 const INDENT_AWARE_ALPHA: f32 = 0.2;
5177 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
5178 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
5179 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
5180
5181 let line_color = match (settings.coloring, indent_guide.active) {
5182 (IndentGuideColoring::Disabled, _) => None,
5183 (IndentGuideColoring::Fixed, false) => {
5184 Some(cx.theme().colors().editor_indent_guide)
5185 }
5186 (IndentGuideColoring::Fixed, true) => {
5187 Some(cx.theme().colors().editor_indent_guide_active)
5188 }
5189 (IndentGuideColoring::IndentAware, false) => {
5190 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
5191 }
5192 (IndentGuideColoring::IndentAware, true) => {
5193 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
5194 }
5195 };
5196
5197 let background_color = match (settings.background_coloring, indent_guide.active) {
5198 (IndentGuideBackgroundColoring::Disabled, _) => None,
5199 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
5200 indent_accent_colors,
5201 INDENT_AWARE_BACKGROUND_ALPHA,
5202 )),
5203 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
5204 indent_accent_colors,
5205 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
5206 )),
5207 };
5208
5209 let requested_line_width = if indent_guide.active {
5210 settings.active_line_width
5211 } else {
5212 settings.line_width
5213 }
5214 .clamp(1, 10);
5215 let mut line_indicator_width = 0.;
5216 if let Some(color) = line_color {
5217 window.paint_quad(fill(
5218 Bounds {
5219 origin: indent_guide.origin,
5220 size: size(px(requested_line_width as f32), indent_guide.length),
5221 },
5222 color,
5223 ));
5224 line_indicator_width = requested_line_width as f32;
5225 }
5226
5227 if let Some(color) = background_color {
5228 let width = indent_guide.single_indent_width - px(line_indicator_width);
5229 window.paint_quad(fill(
5230 Bounds {
5231 origin: point(
5232 indent_guide.origin.x + px(line_indicator_width),
5233 indent_guide.origin.y,
5234 ),
5235 size: size(width, indent_guide.length),
5236 },
5237 color,
5238 ));
5239 }
5240 }
5241 }
5242
5243 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5244 let is_singleton = self.editor.read(cx).is_singleton(cx);
5245
5246 let line_height = layout.position_map.line_height;
5247 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
5248
5249 for LineNumberLayout {
5250 shaped_line,
5251 hitbox,
5252 } in layout.line_numbers.values()
5253 {
5254 let Some(hitbox) = hitbox else {
5255 continue;
5256 };
5257
5258 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
5259 let color = cx.theme().colors().editor_hover_line_number;
5260
5261 let line = self.shape_line_number(shaped_line.text.clone(), color, window);
5262 line.paint(hitbox.origin, line_height, window, cx).log_err()
5263 } else {
5264 shaped_line
5265 .paint(hitbox.origin, line_height, window, cx)
5266 .log_err()
5267 }) else {
5268 continue;
5269 };
5270
5271 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
5272 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
5273 if is_singleton {
5274 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
5275 } else {
5276 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
5277 }
5278 }
5279 }
5280
5281 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5282 if layout.display_hunks.is_empty() {
5283 return;
5284 }
5285
5286 let line_height = layout.position_map.line_height;
5287 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5288 for (hunk, hitbox) in &layout.display_hunks {
5289 let hunk_to_paint = match hunk {
5290 DisplayDiffHunk::Folded { .. } => {
5291 let hunk_bounds = Self::diff_hunk_bounds(
5292 &layout.position_map.snapshot,
5293 line_height,
5294 layout.gutter_hitbox.bounds,
5295 &hunk,
5296 );
5297 Some((
5298 hunk_bounds,
5299 cx.theme().colors().version_control_modified,
5300 Corners::all(px(0.)),
5301 DiffHunkStatus::modified_none(),
5302 ))
5303 }
5304 DisplayDiffHunk::Unfolded {
5305 status,
5306 display_row_range,
5307 ..
5308 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
5309 DiffHunkStatusKind::Added => (
5310 hunk_hitbox.bounds,
5311 cx.theme().colors().version_control_added,
5312 Corners::all(px(0.)),
5313 *status,
5314 ),
5315 DiffHunkStatusKind::Modified => (
5316 hunk_hitbox.bounds,
5317 cx.theme().colors().version_control_modified,
5318 Corners::all(px(0.)),
5319 *status,
5320 ),
5321 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
5322 hunk_hitbox.bounds,
5323 cx.theme().colors().version_control_deleted,
5324 Corners::all(px(0.)),
5325 *status,
5326 ),
5327 DiffHunkStatusKind::Deleted => (
5328 Bounds::new(
5329 point(
5330 hunk_hitbox.origin.x - hunk_hitbox.size.width,
5331 hunk_hitbox.origin.y,
5332 ),
5333 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
5334 ),
5335 cx.theme().colors().version_control_deleted,
5336 Corners::all(1. * line_height),
5337 *status,
5338 ),
5339 }),
5340 };
5341
5342 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
5343 // Flatten the background color with the editor color to prevent
5344 // elements below transparent hunks from showing through
5345 let flattened_background_color = cx
5346 .theme()
5347 .colors()
5348 .editor_background
5349 .blend(background_color);
5350
5351 if !Self::diff_hunk_hollow(status, cx) {
5352 window.paint_quad(quad(
5353 hunk_bounds,
5354 corner_radii,
5355 flattened_background_color,
5356 Edges::default(),
5357 transparent_black(),
5358 BorderStyle::default(),
5359 ));
5360 } else {
5361 let flattened_unstaged_background_color = cx
5362 .theme()
5363 .colors()
5364 .editor_background
5365 .blend(background_color.opacity(0.3));
5366
5367 window.paint_quad(quad(
5368 hunk_bounds,
5369 corner_radii,
5370 flattened_unstaged_background_color,
5371 Edges::all(Pixels(1.0)),
5372 flattened_background_color,
5373 BorderStyle::Solid,
5374 ));
5375 }
5376 }
5377 }
5378 });
5379 }
5380
5381 fn gutter_strip_width(line_height: Pixels) -> Pixels {
5382 (0.275 * line_height).floor()
5383 }
5384
5385 fn diff_hunk_bounds(
5386 snapshot: &EditorSnapshot,
5387 line_height: Pixels,
5388 gutter_bounds: Bounds<Pixels>,
5389 hunk: &DisplayDiffHunk,
5390 ) -> Bounds<Pixels> {
5391 let scroll_position = snapshot.scroll_position();
5392 let scroll_top = scroll_position.y * line_height;
5393 let gutter_strip_width = Self::gutter_strip_width(line_height);
5394
5395 match hunk {
5396 DisplayDiffHunk::Folded { display_row, .. } => {
5397 let start_y = display_row.as_f32() * line_height - scroll_top;
5398 let end_y = start_y + line_height;
5399 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5400 let highlight_size = size(gutter_strip_width, end_y - start_y);
5401 Bounds::new(highlight_origin, highlight_size)
5402 }
5403 DisplayDiffHunk::Unfolded {
5404 display_row_range,
5405 status,
5406 ..
5407 } => {
5408 if status.is_deleted() && display_row_range.is_empty() {
5409 let row = display_row_range.start;
5410
5411 let offset = line_height / 2.;
5412 let start_y = row.as_f32() * line_height - offset - scroll_top;
5413 let end_y = start_y + line_height;
5414
5415 let width = (0.35 * line_height).floor();
5416 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5417 let highlight_size = size(width, end_y - start_y);
5418 Bounds::new(highlight_origin, highlight_size)
5419 } else {
5420 let start_row = display_row_range.start;
5421 let end_row = display_row_range.end;
5422 // If we're in a multibuffer, row range span might include an
5423 // excerpt header, so if we were to draw the marker straight away,
5424 // the hunk might include the rows of that header.
5425 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
5426 // Instead, we simply check whether the range we're dealing with includes
5427 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
5428 let end_row_in_current_excerpt = snapshot
5429 .blocks_in_range(start_row..end_row)
5430 .find_map(|(start_row, block)| {
5431 if matches!(block, Block::ExcerptBoundary { .. }) {
5432 Some(start_row)
5433 } else {
5434 None
5435 }
5436 })
5437 .unwrap_or(end_row);
5438
5439 let start_y = start_row.as_f32() * line_height - scroll_top;
5440 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
5441
5442 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5443 let highlight_size = size(gutter_strip_width, end_y - start_y);
5444 Bounds::new(highlight_origin, highlight_size)
5445 }
5446 }
5447 }
5448 }
5449
5450 fn paint_gutter_indicators(
5451 &self,
5452 layout: &mut EditorLayout,
5453 window: &mut Window,
5454 cx: &mut App,
5455 ) {
5456 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5457 window.with_element_namespace("crease_toggles", |window| {
5458 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
5459 crease_toggle.paint(window, cx);
5460 }
5461 });
5462
5463 window.with_element_namespace("expand_toggles", |window| {
5464 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
5465 expand_toggle.paint(window, cx);
5466 }
5467 });
5468
5469 for breakpoint in layout.breakpoints.iter_mut() {
5470 breakpoint.paint(window, cx);
5471 }
5472
5473 for test_indicator in layout.test_indicators.iter_mut() {
5474 test_indicator.paint(window, cx);
5475 }
5476 });
5477 }
5478
5479 fn paint_gutter_highlights(
5480 &self,
5481 layout: &mut EditorLayout,
5482 window: &mut Window,
5483 cx: &mut App,
5484 ) {
5485 for (_, hunk_hitbox) in &layout.display_hunks {
5486 if let Some(hunk_hitbox) = hunk_hitbox {
5487 if !self
5488 .editor
5489 .read(cx)
5490 .buffer()
5491 .read(cx)
5492 .all_diff_hunks_expanded()
5493 {
5494 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
5495 }
5496 }
5497 }
5498
5499 let show_git_gutter = layout
5500 .position_map
5501 .snapshot
5502 .show_git_diff_gutter
5503 .unwrap_or_else(|| {
5504 matches!(
5505 ProjectSettings::get_global(cx).git.git_gutter,
5506 Some(GitGutterSetting::TrackedFiles)
5507 )
5508 });
5509 if show_git_gutter {
5510 Self::paint_gutter_diff_hunks(layout, window, cx)
5511 }
5512
5513 let highlight_width = 0.275 * layout.position_map.line_height;
5514 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
5515 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5516 for (range, color) in &layout.highlighted_gutter_ranges {
5517 let start_row = if range.start.row() < layout.visible_display_row_range.start {
5518 layout.visible_display_row_range.start - DisplayRow(1)
5519 } else {
5520 range.start.row()
5521 };
5522 let end_row = if range.end.row() > layout.visible_display_row_range.end {
5523 layout.visible_display_row_range.end + DisplayRow(1)
5524 } else {
5525 range.end.row()
5526 };
5527
5528 let start_y = layout.gutter_hitbox.top()
5529 + start_row.0 as f32 * layout.position_map.line_height
5530 - layout.position_map.scroll_pixel_position.y;
5531 let end_y = layout.gutter_hitbox.top()
5532 + (end_row.0 + 1) as f32 * layout.position_map.line_height
5533 - layout.position_map.scroll_pixel_position.y;
5534 let bounds = Bounds::from_corners(
5535 point(layout.gutter_hitbox.left(), start_y),
5536 point(layout.gutter_hitbox.left() + highlight_width, end_y),
5537 );
5538 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
5539 }
5540 });
5541 }
5542
5543 fn paint_blamed_display_rows(
5544 &self,
5545 layout: &mut EditorLayout,
5546 window: &mut Window,
5547 cx: &mut App,
5548 ) {
5549 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
5550 return;
5551 };
5552
5553 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5554 for mut blame_element in blamed_display_rows.into_iter() {
5555 blame_element.paint(window, cx);
5556 }
5557 })
5558 }
5559
5560 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5561 window.with_content_mask(
5562 Some(ContentMask {
5563 bounds: layout.position_map.text_hitbox.bounds,
5564 }),
5565 |window| {
5566 let editor = self.editor.read(cx);
5567 if editor.mouse_cursor_hidden {
5568 window.set_window_cursor_style(CursorStyle::None);
5569 } else if editor
5570 .hovered_link_state
5571 .as_ref()
5572 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
5573 {
5574 window.set_cursor_style(
5575 CursorStyle::PointingHand,
5576 &layout.position_map.text_hitbox,
5577 );
5578 } else {
5579 window.set_cursor_style(CursorStyle::IBeam, &layout.position_map.text_hitbox);
5580 };
5581
5582 self.paint_lines_background(layout, window, cx);
5583 let invisible_display_ranges = self.paint_highlights(layout, window);
5584 self.paint_lines(&invisible_display_ranges, layout, window, cx);
5585 self.paint_redactions(layout, window);
5586 self.paint_cursors(layout, window, cx);
5587 self.paint_inline_diagnostics(layout, window, cx);
5588 self.paint_inline_blame(layout, window, cx);
5589 self.paint_inline_code_actions(layout, window, cx);
5590 self.paint_diff_hunk_controls(layout, window, cx);
5591 window.with_element_namespace("crease_trailers", |window| {
5592 for trailer in layout.crease_trailers.iter_mut().flatten() {
5593 trailer.element.paint(window, cx);
5594 }
5595 });
5596 },
5597 )
5598 }
5599
5600 fn paint_highlights(
5601 &mut self,
5602 layout: &mut EditorLayout,
5603 window: &mut Window,
5604 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
5605 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5606 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
5607 let line_end_overshoot = 0.15 * layout.position_map.line_height;
5608 for (range, color) in &layout.highlighted_ranges {
5609 self.paint_highlighted_range(
5610 range.clone(),
5611 *color,
5612 Pixels::ZERO,
5613 line_end_overshoot,
5614 layout,
5615 window,
5616 );
5617 }
5618
5619 let corner_radius = 0.15 * layout.position_map.line_height;
5620
5621 for (player_color, selections) in &layout.selections {
5622 for selection in selections.iter() {
5623 self.paint_highlighted_range(
5624 selection.range.clone(),
5625 player_color.selection,
5626 corner_radius,
5627 corner_radius * 2.,
5628 layout,
5629 window,
5630 );
5631
5632 if selection.is_local && !selection.range.is_empty() {
5633 invisible_display_ranges.push(selection.range.clone());
5634 }
5635 }
5636 }
5637 invisible_display_ranges
5638 })
5639 }
5640
5641 fn paint_lines(
5642 &mut self,
5643 invisible_display_ranges: &[Range<DisplayPoint>],
5644 layout: &mut EditorLayout,
5645 window: &mut Window,
5646 cx: &mut App,
5647 ) {
5648 let whitespace_setting = self
5649 .editor
5650 .read(cx)
5651 .buffer
5652 .read(cx)
5653 .language_settings(cx)
5654 .show_whitespaces;
5655
5656 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
5657 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
5658 line_with_invisibles.draw(
5659 layout,
5660 row,
5661 layout.content_origin,
5662 whitespace_setting,
5663 invisible_display_ranges,
5664 window,
5665 cx,
5666 )
5667 }
5668
5669 for line_element in &mut layout.line_elements {
5670 line_element.paint(window, cx);
5671 }
5672 }
5673
5674 fn paint_lines_background(
5675 &mut self,
5676 layout: &mut EditorLayout,
5677 window: &mut Window,
5678 cx: &mut App,
5679 ) {
5680 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
5681 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
5682 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
5683 }
5684 }
5685
5686 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
5687 if layout.redacted_ranges.is_empty() {
5688 return;
5689 }
5690
5691 let line_end_overshoot = layout.line_end_overshoot();
5692
5693 // A softer than perfect black
5694 let redaction_color = gpui::rgb(0x0e1111);
5695
5696 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5697 for range in layout.redacted_ranges.iter() {
5698 self.paint_highlighted_range(
5699 range.clone(),
5700 redaction_color.into(),
5701 Pixels::ZERO,
5702 line_end_overshoot,
5703 layout,
5704 window,
5705 );
5706 }
5707 });
5708 }
5709
5710 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5711 for cursor in &mut layout.visible_cursors {
5712 cursor.paint(layout.content_origin, window, cx);
5713 }
5714 }
5715
5716 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5717 let Some(scrollbars_layout) = layout.scrollbars_layout.take() else {
5718 return;
5719 };
5720 let any_scrollbar_dragged = self.editor.read(cx).scroll_manager.any_scrollbar_dragged();
5721
5722 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
5723 let hitbox = &scrollbar_layout.hitbox;
5724 if scrollbars_layout.visible {
5725 let scrollbar_edges = match axis {
5726 ScrollbarAxis::Horizontal => Edges {
5727 top: Pixels::ZERO,
5728 right: Pixels::ZERO,
5729 bottom: Pixels::ZERO,
5730 left: Pixels::ZERO,
5731 },
5732 ScrollbarAxis::Vertical => Edges {
5733 top: Pixels::ZERO,
5734 right: Pixels::ZERO,
5735 bottom: Pixels::ZERO,
5736 left: ScrollbarLayout::BORDER_WIDTH,
5737 },
5738 };
5739
5740 window.paint_layer(hitbox.bounds, |window| {
5741 window.paint_quad(quad(
5742 hitbox.bounds,
5743 Corners::default(),
5744 cx.theme().colors().scrollbar_track_background,
5745 scrollbar_edges,
5746 cx.theme().colors().scrollbar_track_border,
5747 BorderStyle::Solid,
5748 ));
5749
5750 if axis == ScrollbarAxis::Vertical {
5751 let fast_markers =
5752 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
5753 // Refresh slow scrollbar markers in the background. Below, we
5754 // paint whatever markers have already been computed.
5755 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
5756
5757 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
5758 for marker in markers.iter().chain(&fast_markers) {
5759 let mut marker = marker.clone();
5760 marker.bounds.origin += hitbox.origin;
5761 window.paint_quad(marker);
5762 }
5763 }
5764
5765 if let Some(thumb_bounds) = scrollbar_layout.thumb_bounds {
5766 let scrollbar_thumb_color = match scrollbar_layout.thumb_state {
5767 ScrollbarThumbState::Dragging => {
5768 cx.theme().colors().scrollbar_thumb_active_background
5769 }
5770 ScrollbarThumbState::Hovered => {
5771 cx.theme().colors().scrollbar_thumb_hover_background
5772 }
5773 ScrollbarThumbState::Idle => {
5774 cx.theme().colors().scrollbar_thumb_background
5775 }
5776 };
5777 window.paint_quad(quad(
5778 thumb_bounds,
5779 Corners::default(),
5780 scrollbar_thumb_color,
5781 scrollbar_edges,
5782 cx.theme().colors().scrollbar_thumb_border,
5783 BorderStyle::Solid,
5784 ));
5785
5786 if any_scrollbar_dragged {
5787 window.set_window_cursor_style(CursorStyle::Arrow);
5788 } else {
5789 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
5790 }
5791 }
5792 })
5793 }
5794 }
5795
5796 window.on_mouse_event({
5797 let editor = self.editor.clone();
5798 let scrollbars_layout = scrollbars_layout.clone();
5799
5800 let mut mouse_position = window.mouse_position();
5801 move |event: &MouseMoveEvent, phase, window, cx| {
5802 if phase == DispatchPhase::Capture {
5803 return;
5804 }
5805
5806 editor.update(cx, |editor, cx| {
5807 if let Some((scrollbar_layout, axis)) = event
5808 .pressed_button
5809 .filter(|button| *button == MouseButton::Left)
5810 .and(editor.scroll_manager.dragging_scrollbar_axis())
5811 .and_then(|axis| {
5812 scrollbars_layout
5813 .iter_scrollbars()
5814 .find(|(_, a)| *a == axis)
5815 })
5816 {
5817 let ScrollbarLayout {
5818 hitbox,
5819 text_unit_size,
5820 ..
5821 } = scrollbar_layout;
5822
5823 let old_position = mouse_position.along(axis);
5824 let new_position = event.position.along(axis);
5825 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
5826 .contains(&old_position)
5827 {
5828 let position = editor.scroll_position(cx).apply_along(axis, |p| {
5829 (p + (new_position - old_position) / *text_unit_size).max(0.)
5830 });
5831 editor.set_scroll_position(position, window, cx);
5832 }
5833
5834 editor.scroll_manager.show_scrollbars(window, cx);
5835 cx.stop_propagation();
5836 } else if let Some((layout, axis)) = scrollbars_layout
5837 .get_hovered_axis(window)
5838 .filter(|_| !event.dragging())
5839 {
5840 if layout.thumb_hovered(&event.position) {
5841 editor
5842 .scroll_manager
5843 .set_hovered_scroll_thumb_axis(axis, cx);
5844 } else {
5845 editor.scroll_manager.reset_scrollbar_state(cx);
5846 }
5847
5848 editor.scroll_manager.show_scrollbars(window, cx);
5849 } else {
5850 editor.scroll_manager.reset_scrollbar_state(cx);
5851 }
5852
5853 mouse_position = event.position;
5854 })
5855 }
5856 });
5857
5858 if any_scrollbar_dragged {
5859 window.on_mouse_event({
5860 let editor = self.editor.clone();
5861 move |_: &MouseUpEvent, phase, window, cx| {
5862 if phase == DispatchPhase::Capture {
5863 return;
5864 }
5865
5866 editor.update(cx, |editor, cx| {
5867 if let Some((_, axis)) = scrollbars_layout.get_hovered_axis(window) {
5868 editor
5869 .scroll_manager
5870 .set_hovered_scroll_thumb_axis(axis, cx);
5871 } else {
5872 editor.scroll_manager.reset_scrollbar_state(cx);
5873 }
5874 cx.stop_propagation();
5875 });
5876 }
5877 });
5878 } else {
5879 window.on_mouse_event({
5880 let editor = self.editor.clone();
5881
5882 move |event: &MouseDownEvent, phase, window, cx| {
5883 if phase == DispatchPhase::Capture {
5884 return;
5885 }
5886 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
5887 else {
5888 return;
5889 };
5890
5891 let ScrollbarLayout {
5892 hitbox,
5893 visible_range,
5894 text_unit_size,
5895 thumb_bounds,
5896 ..
5897 } = scrollbar_layout;
5898
5899 let Some(thumb_bounds) = thumb_bounds else {
5900 return;
5901 };
5902
5903 editor.update(cx, |editor, cx| {
5904 editor
5905 .scroll_manager
5906 .set_dragged_scroll_thumb_axis(axis, cx);
5907
5908 let event_position = event.position.along(axis);
5909
5910 if event_position < thumb_bounds.origin.along(axis)
5911 || thumb_bounds.bottom_right().along(axis) < event_position
5912 {
5913 let center_position = ((event_position - hitbox.origin.along(axis))
5914 / *text_unit_size)
5915 .round() as u32;
5916 let start_position = center_position.saturating_sub(
5917 (visible_range.end - visible_range.start) as u32 / 2,
5918 );
5919
5920 let position = editor
5921 .scroll_position(cx)
5922 .apply_along(axis, |_| start_position as f32);
5923
5924 editor.set_scroll_position(position, window, cx);
5925 } else {
5926 editor.scroll_manager.show_scrollbars(window, cx);
5927 }
5928
5929 cx.stop_propagation();
5930 });
5931 }
5932 });
5933 }
5934 }
5935
5936 fn collect_fast_scrollbar_markers(
5937 &self,
5938 layout: &EditorLayout,
5939 scrollbar_layout: &ScrollbarLayout,
5940 cx: &mut App,
5941 ) -> Vec<PaintQuad> {
5942 const LIMIT: usize = 100;
5943 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5944 return vec![];
5945 }
5946 let cursor_ranges = layout
5947 .cursors
5948 .iter()
5949 .map(|(point, color)| ColoredRange {
5950 start: point.row(),
5951 end: point.row(),
5952 color: *color,
5953 })
5954 .collect_vec();
5955 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5956 }
5957
5958 fn refresh_slow_scrollbar_markers(
5959 &self,
5960 layout: &EditorLayout,
5961 scrollbar_layout: &ScrollbarLayout,
5962 window: &mut Window,
5963 cx: &mut App,
5964 ) {
5965 self.editor.update(cx, |editor, cx| {
5966 if !editor.is_singleton(cx)
5967 || !editor
5968 .scrollbar_marker_state
5969 .should_refresh(scrollbar_layout.hitbox.size)
5970 {
5971 return;
5972 }
5973
5974 let scrollbar_layout = scrollbar_layout.clone();
5975 let background_highlights = editor.background_highlights.clone();
5976 let snapshot = layout.position_map.snapshot.clone();
5977 let theme = cx.theme().clone();
5978 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5979
5980 editor.scrollbar_marker_state.dirty = false;
5981 editor.scrollbar_marker_state.pending_refresh =
5982 Some(cx.spawn_in(window, async move |editor, cx| {
5983 let scrollbar_size = scrollbar_layout.hitbox.size;
5984 let scrollbar_markers = cx
5985 .background_spawn(async move {
5986 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5987 let mut marker_quads = Vec::new();
5988 if scrollbar_settings.git_diff {
5989 let marker_row_ranges =
5990 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5991 let start_display_row =
5992 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5993 .to_display_point(&snapshot.display_snapshot)
5994 .row();
5995 let mut end_display_row =
5996 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5997 .to_display_point(&snapshot.display_snapshot)
5998 .row();
5999 if end_display_row != start_display_row {
6000 end_display_row.0 -= 1;
6001 }
6002 let color = match &hunk.status().kind {
6003 DiffHunkStatusKind::Added => {
6004 theme.colors().version_control_added
6005 }
6006 DiffHunkStatusKind::Modified => {
6007 theme.colors().version_control_modified
6008 }
6009 DiffHunkStatusKind::Deleted => {
6010 theme.colors().version_control_deleted
6011 }
6012 };
6013 ColoredRange {
6014 start: start_display_row,
6015 end: end_display_row,
6016 color,
6017 }
6018 });
6019
6020 marker_quads.extend(
6021 scrollbar_layout
6022 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
6023 );
6024 }
6025
6026 for (background_highlight_id, (_, background_ranges)) in
6027 background_highlights.iter()
6028 {
6029 let is_search_highlights = *background_highlight_id
6030 == TypeId::of::<BufferSearchHighlights>();
6031 let is_text_highlights = *background_highlight_id
6032 == TypeId::of::<SelectedTextHighlight>();
6033 let is_symbol_occurrences = *background_highlight_id
6034 == TypeId::of::<DocumentHighlightRead>()
6035 || *background_highlight_id
6036 == TypeId::of::<DocumentHighlightWrite>();
6037 if (is_search_highlights && scrollbar_settings.search_results)
6038 || (is_text_highlights && scrollbar_settings.selected_text)
6039 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
6040 {
6041 let mut color = theme.status().info;
6042 if is_symbol_occurrences {
6043 color.fade_out(0.5);
6044 }
6045 let marker_row_ranges = background_ranges.iter().map(|range| {
6046 let display_start = range
6047 .start
6048 .to_display_point(&snapshot.display_snapshot);
6049 let display_end =
6050 range.end.to_display_point(&snapshot.display_snapshot);
6051 ColoredRange {
6052 start: display_start.row(),
6053 end: display_end.row(),
6054 color,
6055 }
6056 });
6057 marker_quads.extend(
6058 scrollbar_layout
6059 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
6060 );
6061 }
6062 }
6063
6064 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
6065 let diagnostics = snapshot
6066 .buffer_snapshot
6067 .diagnostics_in_range::<Point>(Point::zero()..max_point)
6068 // Don't show diagnostics the user doesn't care about
6069 .filter(|diagnostic| {
6070 match (
6071 scrollbar_settings.diagnostics,
6072 diagnostic.diagnostic.severity,
6073 ) {
6074 (ScrollbarDiagnostics::All, _) => true,
6075 (
6076 ScrollbarDiagnostics::Error,
6077 lsp::DiagnosticSeverity::ERROR,
6078 ) => true,
6079 (
6080 ScrollbarDiagnostics::Warning,
6081 lsp::DiagnosticSeverity::ERROR
6082 | lsp::DiagnosticSeverity::WARNING,
6083 ) => true,
6084 (
6085 ScrollbarDiagnostics::Information,
6086 lsp::DiagnosticSeverity::ERROR
6087 | lsp::DiagnosticSeverity::WARNING
6088 | lsp::DiagnosticSeverity::INFORMATION,
6089 ) => true,
6090 (_, _) => false,
6091 }
6092 })
6093 // We want to sort by severity, in order to paint the most severe diagnostics last.
6094 .sorted_by_key(|diagnostic| {
6095 std::cmp::Reverse(diagnostic.diagnostic.severity)
6096 });
6097
6098 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
6099 let start_display = diagnostic
6100 .range
6101 .start
6102 .to_display_point(&snapshot.display_snapshot);
6103 let end_display = diagnostic
6104 .range
6105 .end
6106 .to_display_point(&snapshot.display_snapshot);
6107 let color = match diagnostic.diagnostic.severity {
6108 lsp::DiagnosticSeverity::ERROR => theme.status().error,
6109 lsp::DiagnosticSeverity::WARNING => theme.status().warning,
6110 lsp::DiagnosticSeverity::INFORMATION => theme.status().info,
6111 _ => theme.status().hint,
6112 };
6113 ColoredRange {
6114 start: start_display.row(),
6115 end: end_display.row(),
6116 color,
6117 }
6118 });
6119 marker_quads.extend(
6120 scrollbar_layout
6121 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
6122 );
6123 }
6124
6125 Arc::from(marker_quads)
6126 })
6127 .await;
6128
6129 editor.update(cx, |editor, cx| {
6130 editor.scrollbar_marker_state.markers = scrollbar_markers;
6131 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
6132 editor.scrollbar_marker_state.pending_refresh = None;
6133 cx.notify();
6134 })?;
6135
6136 Ok(())
6137 }));
6138 });
6139 }
6140
6141 fn paint_highlighted_range(
6142 &self,
6143 range: Range<DisplayPoint>,
6144 color: Hsla,
6145 corner_radius: Pixels,
6146 line_end_overshoot: Pixels,
6147 layout: &EditorLayout,
6148 window: &mut Window,
6149 ) {
6150 let start_row = layout.visible_display_row_range.start;
6151 let end_row = layout.visible_display_row_range.end;
6152 if range.start != range.end {
6153 let row_range = if range.end.column() == 0 {
6154 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
6155 } else {
6156 cmp::max(range.start.row(), start_row)
6157 ..cmp::min(range.end.row().next_row(), end_row)
6158 };
6159
6160 let highlighted_range = HighlightedRange {
6161 color,
6162 line_height: layout.position_map.line_height,
6163 corner_radius,
6164 start_y: layout.content_origin.y
6165 + row_range.start.as_f32() * layout.position_map.line_height
6166 - layout.position_map.scroll_pixel_position.y,
6167 lines: row_range
6168 .iter_rows()
6169 .map(|row| {
6170 let line_layout =
6171 &layout.position_map.line_layouts[row.minus(start_row) as usize];
6172 HighlightedRangeLine {
6173 start_x: if row == range.start.row() {
6174 layout.content_origin.x
6175 + line_layout.x_for_index(range.start.column() as usize)
6176 - layout.position_map.scroll_pixel_position.x
6177 } else {
6178 layout.content_origin.x
6179 - layout.position_map.scroll_pixel_position.x
6180 },
6181 end_x: if row == range.end.row() {
6182 layout.content_origin.x
6183 + line_layout.x_for_index(range.end.column() as usize)
6184 - layout.position_map.scroll_pixel_position.x
6185 } else {
6186 layout.content_origin.x + line_layout.width + line_end_overshoot
6187 - layout.position_map.scroll_pixel_position.x
6188 },
6189 }
6190 })
6191 .collect(),
6192 };
6193
6194 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
6195 }
6196 }
6197
6198 fn paint_inline_diagnostics(
6199 &mut self,
6200 layout: &mut EditorLayout,
6201 window: &mut Window,
6202 cx: &mut App,
6203 ) {
6204 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
6205 inline_diagnostic.1.paint(window, cx);
6206 }
6207 }
6208
6209 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6210 if let Some(mut inline_blame) = layout.inline_blame.take() {
6211 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6212 inline_blame.paint(window, cx);
6213 })
6214 }
6215 }
6216
6217 fn paint_inline_code_actions(
6218 &mut self,
6219 layout: &mut EditorLayout,
6220 window: &mut Window,
6221 cx: &mut App,
6222 ) {
6223 if let Some(mut inline_code_actions) = layout.inline_code_actions.take() {
6224 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6225 inline_code_actions.paint(window, cx);
6226 })
6227 }
6228 }
6229
6230 fn paint_diff_hunk_controls(
6231 &mut self,
6232 layout: &mut EditorLayout,
6233 window: &mut Window,
6234 cx: &mut App,
6235 ) {
6236 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
6237 diff_hunk_control.paint(window, cx);
6238 }
6239 }
6240
6241 fn paint_minimap(&self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6242 if let Some(mut layout) = layout.minimap.take() {
6243 let minimap_hitbox = layout.thumb_layout.hitbox.clone();
6244 let dragging_minimap = self.editor.read(cx).scroll_manager.is_dragging_minimap();
6245
6246 window.paint_layer(layout.thumb_layout.hitbox.bounds, |window| {
6247 window.with_element_namespace("minimap", |window| {
6248 layout.minimap.paint(window, cx);
6249 if let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds {
6250 let minimap_thumb_color = match layout.thumb_layout.thumb_state {
6251 ScrollbarThumbState::Idle => {
6252 cx.theme().colors().minimap_thumb_background
6253 }
6254 ScrollbarThumbState::Hovered => {
6255 cx.theme().colors().minimap_thumb_hover_background
6256 }
6257 ScrollbarThumbState::Dragging => {
6258 cx.theme().colors().minimap_thumb_active_background
6259 }
6260 };
6261 let minimap_thumb_border = match layout.thumb_border_style {
6262 MinimapThumbBorder::Full => Edges::all(ScrollbarLayout::BORDER_WIDTH),
6263 MinimapThumbBorder::LeftOnly => Edges {
6264 left: ScrollbarLayout::BORDER_WIDTH,
6265 ..Default::default()
6266 },
6267 MinimapThumbBorder::LeftOpen => Edges {
6268 right: ScrollbarLayout::BORDER_WIDTH,
6269 top: ScrollbarLayout::BORDER_WIDTH,
6270 bottom: ScrollbarLayout::BORDER_WIDTH,
6271 ..Default::default()
6272 },
6273 MinimapThumbBorder::RightOpen => Edges {
6274 left: ScrollbarLayout::BORDER_WIDTH,
6275 top: ScrollbarLayout::BORDER_WIDTH,
6276 bottom: ScrollbarLayout::BORDER_WIDTH,
6277 ..Default::default()
6278 },
6279 MinimapThumbBorder::None => Default::default(),
6280 };
6281
6282 window.paint_layer(minimap_hitbox.bounds, |window| {
6283 window.paint_quad(quad(
6284 thumb_bounds,
6285 Corners::default(),
6286 minimap_thumb_color,
6287 minimap_thumb_border,
6288 cx.theme().colors().minimap_thumb_border,
6289 BorderStyle::Solid,
6290 ));
6291 });
6292 }
6293 });
6294 });
6295
6296 if dragging_minimap {
6297 window.set_window_cursor_style(CursorStyle::Arrow);
6298 } else {
6299 window.set_cursor_style(CursorStyle::Arrow, &minimap_hitbox);
6300 }
6301
6302 let minimap_axis = ScrollbarAxis::Vertical;
6303 let pixels_per_line = (minimap_hitbox.size.height / layout.max_scroll_top)
6304 .min(layout.minimap_line_height);
6305
6306 let mut mouse_position = window.mouse_position();
6307
6308 window.on_mouse_event({
6309 let editor = self.editor.clone();
6310
6311 let minimap_hitbox = minimap_hitbox.clone();
6312
6313 move |event: &MouseMoveEvent, phase, window, cx| {
6314 if phase == DispatchPhase::Capture {
6315 return;
6316 }
6317
6318 editor.update(cx, |editor, cx| {
6319 if event.pressed_button == Some(MouseButton::Left)
6320 && editor.scroll_manager.is_dragging_minimap()
6321 {
6322 let old_position = mouse_position.along(minimap_axis);
6323 let new_position = event.position.along(minimap_axis);
6324 if (minimap_hitbox.origin.along(minimap_axis)
6325 ..minimap_hitbox.bottom_right().along(minimap_axis))
6326 .contains(&old_position)
6327 {
6328 let position =
6329 editor.scroll_position(cx).apply_along(minimap_axis, |p| {
6330 (p + (new_position - old_position) / pixels_per_line)
6331 .max(0.)
6332 });
6333 editor.set_scroll_position(position, window, cx);
6334 }
6335 cx.stop_propagation();
6336 } else {
6337 if minimap_hitbox.is_hovered(window) {
6338 editor.scroll_manager.set_is_hovering_minimap_thumb(
6339 !event.dragging()
6340 && layout
6341 .thumb_layout
6342 .thumb_bounds
6343 .is_some_and(|bounds| bounds.contains(&event.position)),
6344 cx,
6345 );
6346
6347 // Stop hover events from propagating to the
6348 // underlying editor if the minimap hitbox is hovered
6349 if !event.dragging() {
6350 cx.stop_propagation();
6351 }
6352 } else {
6353 editor.scroll_manager.hide_minimap_thumb(cx);
6354 }
6355 }
6356 mouse_position = event.position;
6357 });
6358 }
6359 });
6360
6361 if dragging_minimap {
6362 window.on_mouse_event({
6363 let editor = self.editor.clone();
6364 move |event: &MouseUpEvent, phase, window, cx| {
6365 if phase == DispatchPhase::Capture {
6366 return;
6367 }
6368
6369 editor.update(cx, |editor, cx| {
6370 if minimap_hitbox.is_hovered(window) {
6371 editor.scroll_manager.set_is_hovering_minimap_thumb(
6372 layout
6373 .thumb_layout
6374 .thumb_bounds
6375 .is_some_and(|bounds| bounds.contains(&event.position)),
6376 cx,
6377 );
6378 } else {
6379 editor.scroll_manager.hide_minimap_thumb(cx);
6380 }
6381 cx.stop_propagation();
6382 });
6383 }
6384 });
6385 } else {
6386 window.on_mouse_event({
6387 let editor = self.editor.clone();
6388
6389 move |event: &MouseDownEvent, phase, window, cx| {
6390 if phase == DispatchPhase::Capture || !minimap_hitbox.is_hovered(window) {
6391 return;
6392 }
6393
6394 let event_position = event.position;
6395
6396 let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds else {
6397 return;
6398 };
6399
6400 editor.update(cx, |editor, cx| {
6401 if !thumb_bounds.contains(&event_position) {
6402 let click_position =
6403 event_position.relative_to(&minimap_hitbox.origin).y;
6404
6405 let top_position = (click_position
6406 - thumb_bounds.size.along(minimap_axis) / 2.0)
6407 .max(Pixels::ZERO);
6408
6409 let scroll_offset = (layout.minimap_scroll_top
6410 + top_position / layout.minimap_line_height)
6411 .min(layout.max_scroll_top);
6412
6413 let scroll_position = editor
6414 .scroll_position(cx)
6415 .apply_along(minimap_axis, |_| scroll_offset);
6416 editor.set_scroll_position(scroll_position, window, cx);
6417 }
6418
6419 editor.scroll_manager.set_is_dragging_minimap(cx);
6420 cx.stop_propagation();
6421 });
6422 }
6423 });
6424 }
6425 }
6426 }
6427
6428 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6429 for mut block in layout.blocks.drain(..) {
6430 if block.overlaps_gutter {
6431 block.element.paint(window, cx);
6432 } else {
6433 let mut bounds = layout.hitbox.bounds;
6434 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
6435 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6436 block.element.paint(window, cx);
6437 })
6438 }
6439 }
6440 }
6441
6442 fn paint_inline_completion_popover(
6443 &mut self,
6444 layout: &mut EditorLayout,
6445 window: &mut Window,
6446 cx: &mut App,
6447 ) {
6448 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
6449 inline_completion_popover.paint(window, cx);
6450 }
6451 }
6452
6453 fn paint_mouse_context_menu(
6454 &mut self,
6455 layout: &mut EditorLayout,
6456 window: &mut Window,
6457 cx: &mut App,
6458 ) {
6459 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
6460 mouse_context_menu.paint(window, cx);
6461 }
6462 }
6463
6464 fn paint_scroll_wheel_listener(
6465 &mut self,
6466 layout: &EditorLayout,
6467 window: &mut Window,
6468 cx: &mut App,
6469 ) {
6470 window.on_mouse_event({
6471 let position_map = layout.position_map.clone();
6472 let editor = self.editor.clone();
6473 let hitbox = layout.hitbox.clone();
6474 let mut delta = ScrollDelta::default();
6475
6476 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
6477 // accidentally turn off their scrolling.
6478 let base_scroll_sensitivity =
6479 EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
6480
6481 // Use a minimum fast_scroll_sensitivity for same reason above
6482 let fast_scroll_sensitivity = EditorSettings::get_global(cx)
6483 .fast_scroll_sensitivity
6484 .max(0.01);
6485
6486 move |event: &ScrollWheelEvent, phase, window, cx| {
6487 let scroll_sensitivity = {
6488 if event.modifiers.alt {
6489 fast_scroll_sensitivity
6490 } else {
6491 base_scroll_sensitivity
6492 }
6493 };
6494
6495 if phase == DispatchPhase::Bubble && hitbox.should_handle_scroll(window) {
6496 delta = delta.coalesce(event.delta);
6497 editor.update(cx, |editor, cx| {
6498 let position_map: &PositionMap = &position_map;
6499
6500 let line_height = position_map.line_height;
6501 let max_glyph_width = position_map.em_width;
6502 let (delta, axis) = match delta {
6503 gpui::ScrollDelta::Pixels(mut pixels) => {
6504 //Trackpad
6505 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
6506 (pixels, axis)
6507 }
6508
6509 gpui::ScrollDelta::Lines(lines) => {
6510 //Not trackpad
6511 let pixels =
6512 point(lines.x * max_glyph_width, lines.y * line_height);
6513 (pixels, None)
6514 }
6515 };
6516
6517 let current_scroll_position = position_map.snapshot.scroll_position();
6518 let x = (current_scroll_position.x * max_glyph_width
6519 - (delta.x * scroll_sensitivity))
6520 / max_glyph_width;
6521 let y = (current_scroll_position.y * line_height
6522 - (delta.y * scroll_sensitivity))
6523 / line_height;
6524 let mut scroll_position =
6525 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
6526 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
6527 if forbid_vertical_scroll {
6528 scroll_position.y = current_scroll_position.y;
6529 }
6530
6531 if scroll_position != current_scroll_position {
6532 editor.scroll(scroll_position, axis, window, cx);
6533 cx.stop_propagation();
6534 } else if y < 0. {
6535 // Due to clamping, we may fail to detect cases of overscroll to the top;
6536 // We want the scroll manager to get an update in such cases and detect the change of direction
6537 // on the next frame.
6538 cx.notify();
6539 }
6540 });
6541 }
6542 }
6543 });
6544 }
6545
6546 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
6547 if self.editor.read(cx).mode.is_minimap() {
6548 return;
6549 }
6550
6551 self.paint_scroll_wheel_listener(layout, window, cx);
6552
6553 window.on_mouse_event({
6554 let position_map = layout.position_map.clone();
6555 let editor = self.editor.clone();
6556 let diff_hunk_range =
6557 layout
6558 .display_hunks
6559 .iter()
6560 .find_map(|(hunk, hunk_hitbox)| match hunk {
6561 DisplayDiffHunk::Folded { .. } => None,
6562 DisplayDiffHunk::Unfolded {
6563 multi_buffer_range, ..
6564 } => {
6565 if hunk_hitbox
6566 .as_ref()
6567 .map(|hitbox| hitbox.is_hovered(window))
6568 .unwrap_or(false)
6569 {
6570 Some(multi_buffer_range.clone())
6571 } else {
6572 None
6573 }
6574 }
6575 });
6576 let line_numbers = layout.line_numbers.clone();
6577
6578 move |event: &MouseDownEvent, phase, window, cx| {
6579 if phase == DispatchPhase::Bubble {
6580 match event.button {
6581 MouseButton::Left => editor.update(cx, |editor, cx| {
6582 let pending_mouse_down = editor
6583 .pending_mouse_down
6584 .get_or_insert_with(Default::default)
6585 .clone();
6586
6587 *pending_mouse_down.borrow_mut() = Some(event.clone());
6588
6589 Self::mouse_left_down(
6590 editor,
6591 event,
6592 diff_hunk_range.clone(),
6593 &position_map,
6594 line_numbers.as_ref(),
6595 window,
6596 cx,
6597 );
6598 }),
6599 MouseButton::Right => editor.update(cx, |editor, cx| {
6600 Self::mouse_right_down(editor, event, &position_map, window, cx);
6601 }),
6602 MouseButton::Middle => editor.update(cx, |editor, cx| {
6603 Self::mouse_middle_down(editor, event, &position_map, window, cx);
6604 }),
6605 _ => {}
6606 };
6607 }
6608 }
6609 });
6610
6611 window.on_mouse_event({
6612 let editor = self.editor.clone();
6613 let position_map = layout.position_map.clone();
6614
6615 move |event: &MouseUpEvent, phase, window, cx| {
6616 if phase == DispatchPhase::Bubble {
6617 editor.update(cx, |editor, cx| {
6618 Self::mouse_up(editor, event, &position_map, window, cx)
6619 });
6620 }
6621 }
6622 });
6623
6624 window.on_mouse_event({
6625 let editor = self.editor.clone();
6626 let position_map = layout.position_map.clone();
6627 let mut captured_mouse_down = None;
6628
6629 move |event: &MouseUpEvent, phase, window, cx| match phase {
6630 // Clear the pending mouse down during the capture phase,
6631 // so that it happens even if another event handler stops
6632 // propagation.
6633 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
6634 let pending_mouse_down = editor
6635 .pending_mouse_down
6636 .get_or_insert_with(Default::default)
6637 .clone();
6638
6639 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
6640 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
6641 captured_mouse_down = pending_mouse_down.take();
6642 window.refresh();
6643 }
6644 }),
6645 // Fire click handlers during the bubble phase.
6646 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
6647 if let Some(mouse_down) = captured_mouse_down.take() {
6648 let event = ClickEvent {
6649 down: mouse_down,
6650 up: event.clone(),
6651 };
6652 Self::click(editor, &event, &position_map, window, cx);
6653 }
6654 }),
6655 }
6656 });
6657
6658 window.on_mouse_event({
6659 let position_map = layout.position_map.clone();
6660 let editor = self.editor.clone();
6661
6662 move |event: &MouseMoveEvent, phase, window, cx| {
6663 if phase == DispatchPhase::Bubble {
6664 editor.update(cx, |editor, cx| {
6665 if editor.hover_state.focused(window, cx) {
6666 return;
6667 }
6668 if event.pressed_button == Some(MouseButton::Left)
6669 || event.pressed_button == Some(MouseButton::Middle)
6670 {
6671 Self::mouse_dragged(editor, event, &position_map, window, cx)
6672 }
6673
6674 Self::mouse_moved(editor, event, &position_map, window, cx)
6675 });
6676 }
6677 }
6678 });
6679 }
6680
6681 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
6682 bounds.top_right().x - self.style.scrollbar_width
6683 }
6684
6685 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
6686 let style = &self.style;
6687 let font_size = style.text.font_size.to_pixels(window.rem_size());
6688 let layout = window.text_system().shape_line(
6689 SharedString::from(" ".repeat(column)),
6690 font_size,
6691 &[TextRun {
6692 len: column,
6693 font: style.text.font(),
6694 color: Hsla::default(),
6695 background_color: None,
6696 underline: None,
6697 strikethrough: None,
6698 }],
6699 );
6700
6701 layout.width
6702 }
6703
6704 fn max_line_number_width(
6705 &self,
6706 snapshot: &EditorSnapshot,
6707 window: &mut Window,
6708 cx: &mut App,
6709 ) -> Pixels {
6710 let digit_count = snapshot.widest_line_number().ilog10() + 1;
6711 self.column_pixels(digit_count as usize, window, cx)
6712 }
6713
6714 fn shape_line_number(
6715 &self,
6716 text: SharedString,
6717 color: Hsla,
6718 window: &mut Window,
6719 ) -> ShapedLine {
6720 let run = TextRun {
6721 len: text.len(),
6722 font: self.style.text.font(),
6723 color,
6724 background_color: None,
6725 underline: None,
6726 strikethrough: None,
6727 };
6728 window.text_system().shape_line(
6729 text,
6730 self.style.text.font_size.to_pixels(window.rem_size()),
6731 &[run],
6732 )
6733 }
6734
6735 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
6736 let unstaged = status.has_secondary_hunk();
6737 let unstaged_hollow = ProjectSettings::get_global(cx)
6738 .git
6739 .hunk_style
6740 .map_or(false, |style| {
6741 matches!(style, GitHunkStyleSetting::UnstagedHollow)
6742 });
6743
6744 unstaged == unstaged_hollow
6745 }
6746}
6747
6748fn header_jump_data(
6749 snapshot: &EditorSnapshot,
6750 block_row_start: DisplayRow,
6751 height: u32,
6752 for_excerpt: &ExcerptInfo,
6753) -> JumpData {
6754 let range = &for_excerpt.range;
6755 let buffer = &for_excerpt.buffer;
6756 let jump_anchor = range.primary.start;
6757
6758 let excerpt_start = range.context.start;
6759 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
6760 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
6761 0
6762 } else {
6763 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
6764 jump_position.row.saturating_sub(excerpt_start_point.row)
6765 };
6766
6767 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
6768 .saturating_sub(
6769 snapshot
6770 .scroll_anchor
6771 .scroll_position(&snapshot.display_snapshot)
6772 .y as u32,
6773 );
6774
6775 JumpData::MultiBufferPoint {
6776 excerpt_id: for_excerpt.id,
6777 anchor: jump_anchor,
6778 position: jump_position,
6779 line_offset_from_top,
6780 }
6781}
6782
6783pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
6784
6785impl AcceptEditPredictionBinding {
6786 pub fn keystroke(&self) -> Option<&Keystroke> {
6787 if let Some(binding) = self.0.as_ref() {
6788 match &binding.keystrokes() {
6789 [keystroke, ..] => Some(keystroke),
6790 _ => None,
6791 }
6792 } else {
6793 None
6794 }
6795 }
6796}
6797
6798fn prepaint_gutter_button(
6799 button: IconButton,
6800 row: DisplayRow,
6801 line_height: Pixels,
6802 gutter_dimensions: &GutterDimensions,
6803 scroll_pixel_position: gpui::Point<Pixels>,
6804 gutter_hitbox: &Hitbox,
6805 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
6806 window: &mut Window,
6807 cx: &mut App,
6808) -> AnyElement {
6809 let mut button = button.into_any_element();
6810
6811 let available_space = size(
6812 AvailableSpace::MinContent,
6813 AvailableSpace::Definite(line_height),
6814 );
6815 let indicator_size = button.layout_as_root(available_space, window, cx);
6816
6817 let blame_width = gutter_dimensions.git_blame_entries_width;
6818 let gutter_width = display_hunks
6819 .binary_search_by(|(hunk, _)| match hunk {
6820 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
6821 DisplayDiffHunk::Unfolded {
6822 display_row_range, ..
6823 } => {
6824 if display_row_range.end <= row {
6825 Ordering::Less
6826 } else if display_row_range.start > row {
6827 Ordering::Greater
6828 } else {
6829 Ordering::Equal
6830 }
6831 }
6832 })
6833 .ok()
6834 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
6835 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
6836
6837 let mut x = left_offset;
6838 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
6839 - indicator_size.width
6840 - left_offset;
6841 x += available_width / 2.;
6842
6843 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
6844 y += (line_height - indicator_size.height) / 2.;
6845
6846 button.prepaint_as_root(
6847 gutter_hitbox.origin + point(x, y),
6848 available_space,
6849 window,
6850 cx,
6851 );
6852 button
6853}
6854
6855fn render_inline_blame_entry(
6856 blame_entry: BlameEntry,
6857 style: &EditorStyle,
6858 cx: &mut App,
6859) -> Option<AnyElement> {
6860 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
6861 renderer.render_inline_blame_entry(&style.text, blame_entry, cx)
6862}
6863
6864fn render_blame_entry_popover(
6865 blame_entry: BlameEntry,
6866 scroll_handle: ScrollHandle,
6867 commit_message: Option<ParsedCommitMessage>,
6868 markdown: Entity<Markdown>,
6869 workspace: WeakEntity<Workspace>,
6870 blame: &Entity<GitBlame>,
6871 window: &mut Window,
6872 cx: &mut App,
6873) -> Option<AnyElement> {
6874 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
6875 let blame = blame.read(cx);
6876 let repository = blame.repository(cx)?.clone();
6877 renderer.render_blame_entry_popover(
6878 blame_entry,
6879 scroll_handle,
6880 commit_message,
6881 markdown,
6882 repository,
6883 workspace,
6884 window,
6885 cx,
6886 )
6887}
6888
6889fn render_blame_entry(
6890 ix: usize,
6891 blame: &Entity<GitBlame>,
6892 blame_entry: BlameEntry,
6893 style: &EditorStyle,
6894 last_used_color: &mut Option<(PlayerColor, Oid)>,
6895 editor: Entity<Editor>,
6896 workspace: Entity<Workspace>,
6897 renderer: Arc<dyn BlameRenderer>,
6898 cx: &mut App,
6899) -> Option<AnyElement> {
6900 let mut sha_color = cx
6901 .theme()
6902 .players()
6903 .color_for_participant(blame_entry.sha.into());
6904
6905 // If the last color we used is the same as the one we get for this line, but
6906 // the commit SHAs are different, then we try again to get a different color.
6907 match *last_used_color {
6908 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
6909 let index: u32 = blame_entry.sha.into();
6910 sha_color = cx.theme().players().color_for_participant(index + 1);
6911 }
6912 _ => {}
6913 };
6914 last_used_color.replace((sha_color, blame_entry.sha));
6915
6916 let blame = blame.read(cx);
6917 let details = blame.details_for_entry(&blame_entry);
6918 let repository = blame.repository(cx)?;
6919 renderer.render_blame_entry(
6920 &style.text,
6921 blame_entry,
6922 details,
6923 repository,
6924 workspace.downgrade(),
6925 editor,
6926 ix,
6927 sha_color.cursor,
6928 cx,
6929 )
6930}
6931
6932#[derive(Debug)]
6933pub(crate) struct LineWithInvisibles {
6934 fragments: SmallVec<[LineFragment; 1]>,
6935 invisibles: Vec<Invisible>,
6936 len: usize,
6937 pub(crate) width: Pixels,
6938 font_size: Pixels,
6939}
6940
6941enum LineFragment {
6942 Text(ShapedLine),
6943 Element {
6944 id: FoldId,
6945 element: Option<AnyElement>,
6946 size: Size<Pixels>,
6947 len: usize,
6948 },
6949}
6950
6951impl fmt::Debug for LineFragment {
6952 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
6953 match self {
6954 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
6955 LineFragment::Element { size, len, .. } => f
6956 .debug_struct("Element")
6957 .field("size", size)
6958 .field("len", len)
6959 .finish(),
6960 }
6961 }
6962}
6963
6964impl LineWithInvisibles {
6965 fn from_chunks<'a>(
6966 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
6967 editor_style: &EditorStyle,
6968 max_line_len: usize,
6969 max_line_count: usize,
6970 editor_mode: &EditorMode,
6971 text_width: Pixels,
6972 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
6973 window: &mut Window,
6974 cx: &mut App,
6975 ) -> Vec<Self> {
6976 let text_style = &editor_style.text;
6977 let mut layouts = Vec::with_capacity(max_line_count);
6978 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
6979 let mut line = String::new();
6980 let mut invisibles = Vec::new();
6981 let mut width = Pixels::ZERO;
6982 let mut len = 0;
6983 let mut styles = Vec::new();
6984 let mut non_whitespace_added = false;
6985 let mut row = 0;
6986 let mut line_exceeded_max_len = false;
6987 let font_size = text_style.font_size.to_pixels(window.rem_size());
6988
6989 let ellipsis = SharedString::from("⋯");
6990
6991 for highlighted_chunk in chunks.chain([HighlightedChunk {
6992 text: "\n",
6993 style: None,
6994 is_tab: false,
6995 is_inlay: false,
6996 replacement: None,
6997 }]) {
6998 if let Some(replacement) = highlighted_chunk.replacement {
6999 if !line.is_empty() {
7000 let shaped_line =
7001 window
7002 .text_system()
7003 .shape_line(line.clone().into(), font_size, &styles);
7004 width += shaped_line.width;
7005 len += shaped_line.len;
7006 fragments.push(LineFragment::Text(shaped_line));
7007 line.clear();
7008 styles.clear();
7009 }
7010
7011 match replacement {
7012 ChunkReplacement::Renderer(renderer) => {
7013 let available_width = if renderer.constrain_width {
7014 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
7015 ellipsis.clone()
7016 } else {
7017 SharedString::from(Arc::from(highlighted_chunk.text))
7018 };
7019 let shaped_line = window.text_system().shape_line(
7020 chunk,
7021 font_size,
7022 &[text_style.to_run(highlighted_chunk.text.len())],
7023 );
7024 AvailableSpace::Definite(shaped_line.width)
7025 } else {
7026 AvailableSpace::MinContent
7027 };
7028
7029 let mut element = (renderer.render)(&mut ChunkRendererContext {
7030 context: cx,
7031 window,
7032 max_width: text_width,
7033 });
7034 let line_height = text_style.line_height_in_pixels(window.rem_size());
7035 let size = element.layout_as_root(
7036 size(available_width, AvailableSpace::Definite(line_height)),
7037 window,
7038 cx,
7039 );
7040
7041 width += size.width;
7042 len += highlighted_chunk.text.len();
7043 fragments.push(LineFragment::Element {
7044 id: renderer.id,
7045 element: Some(element),
7046 size,
7047 len: highlighted_chunk.text.len(),
7048 });
7049 }
7050 ChunkReplacement::Str(x) => {
7051 let text_style = if let Some(style) = highlighted_chunk.style {
7052 Cow::Owned(text_style.clone().highlight(style))
7053 } else {
7054 Cow::Borrowed(text_style)
7055 };
7056
7057 let run = TextRun {
7058 len: x.len(),
7059 font: text_style.font(),
7060 color: text_style.color,
7061 background_color: text_style.background_color,
7062 underline: text_style.underline,
7063 strikethrough: text_style.strikethrough,
7064 };
7065 let line_layout = window
7066 .text_system()
7067 .shape_line(x, font_size, &[run])
7068 .with_len(highlighted_chunk.text.len());
7069
7070 width += line_layout.width;
7071 len += highlighted_chunk.text.len();
7072 fragments.push(LineFragment::Text(line_layout))
7073 }
7074 }
7075 } else {
7076 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
7077 if ix > 0 {
7078 let shaped_line = window.text_system().shape_line(
7079 line.clone().into(),
7080 font_size,
7081 &styles,
7082 );
7083 width += shaped_line.width;
7084 len += shaped_line.len;
7085 fragments.push(LineFragment::Text(shaped_line));
7086 layouts.push(Self {
7087 width: mem::take(&mut width),
7088 len: mem::take(&mut len),
7089 fragments: mem::take(&mut fragments),
7090 invisibles: std::mem::take(&mut invisibles),
7091 font_size,
7092 });
7093
7094 line.clear();
7095 styles.clear();
7096 row += 1;
7097 line_exceeded_max_len = false;
7098 non_whitespace_added = false;
7099 if row == max_line_count {
7100 return layouts;
7101 }
7102 }
7103
7104 if !line_chunk.is_empty() && !line_exceeded_max_len {
7105 let text_style = if let Some(style) = highlighted_chunk.style {
7106 Cow::Owned(text_style.clone().highlight(style))
7107 } else {
7108 Cow::Borrowed(text_style)
7109 };
7110
7111 if line.len() + line_chunk.len() > max_line_len {
7112 let mut chunk_len = max_line_len - line.len();
7113 while !line_chunk.is_char_boundary(chunk_len) {
7114 chunk_len -= 1;
7115 }
7116 line_chunk = &line_chunk[..chunk_len];
7117 line_exceeded_max_len = true;
7118 }
7119
7120 styles.push(TextRun {
7121 len: line_chunk.len(),
7122 font: text_style.font(),
7123 color: text_style.color,
7124 background_color: text_style.background_color,
7125 underline: text_style.underline,
7126 strikethrough: text_style.strikethrough,
7127 });
7128
7129 if editor_mode.is_full() && !highlighted_chunk.is_inlay {
7130 // Line wrap pads its contents with fake whitespaces,
7131 // avoid printing them
7132 let is_soft_wrapped = is_row_soft_wrapped(row);
7133 if highlighted_chunk.is_tab {
7134 if non_whitespace_added || !is_soft_wrapped {
7135 invisibles.push(Invisible::Tab {
7136 line_start_offset: line.len(),
7137 line_end_offset: line.len() + line_chunk.len(),
7138 });
7139 }
7140 } else {
7141 invisibles.extend(line_chunk.char_indices().filter_map(
7142 |(index, c)| {
7143 let is_whitespace = c.is_whitespace();
7144 non_whitespace_added |= !is_whitespace;
7145 if is_whitespace
7146 && (non_whitespace_added || !is_soft_wrapped)
7147 {
7148 Some(Invisible::Whitespace {
7149 line_offset: line.len() + index,
7150 })
7151 } else {
7152 None
7153 }
7154 },
7155 ))
7156 }
7157 }
7158
7159 line.push_str(line_chunk);
7160 }
7161 }
7162 }
7163 }
7164
7165 layouts
7166 }
7167
7168 fn prepaint(
7169 &mut self,
7170 line_height: Pixels,
7171 scroll_pixel_position: gpui::Point<Pixels>,
7172 row: DisplayRow,
7173 content_origin: gpui::Point<Pixels>,
7174 line_elements: &mut SmallVec<[AnyElement; 1]>,
7175 window: &mut Window,
7176 cx: &mut App,
7177 ) {
7178 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
7179 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
7180 for fragment in &mut self.fragments {
7181 match fragment {
7182 LineFragment::Text(line) => {
7183 fragment_origin.x += line.width;
7184 }
7185 LineFragment::Element { element, size, .. } => {
7186 let mut element = element
7187 .take()
7188 .expect("you can't prepaint LineWithInvisibles twice");
7189
7190 // Center the element vertically within the line.
7191 let mut element_origin = fragment_origin;
7192 element_origin.y += (line_height - size.height) / 2.;
7193 element.prepaint_at(element_origin, window, cx);
7194 line_elements.push(element);
7195
7196 fragment_origin.x += size.width;
7197 }
7198 }
7199 }
7200 }
7201
7202 fn draw(
7203 &self,
7204 layout: &EditorLayout,
7205 row: DisplayRow,
7206 content_origin: gpui::Point<Pixels>,
7207 whitespace_setting: ShowWhitespaceSetting,
7208 selection_ranges: &[Range<DisplayPoint>],
7209 window: &mut Window,
7210 cx: &mut App,
7211 ) {
7212 let line_height = layout.position_map.line_height;
7213 let line_y = line_height
7214 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
7215
7216 let mut fragment_origin =
7217 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
7218
7219 for fragment in &self.fragments {
7220 match fragment {
7221 LineFragment::Text(line) => {
7222 line.paint(fragment_origin, line_height, window, cx)
7223 .log_err();
7224 fragment_origin.x += line.width;
7225 }
7226 LineFragment::Element { size, .. } => {
7227 fragment_origin.x += size.width;
7228 }
7229 }
7230 }
7231
7232 self.draw_invisibles(
7233 selection_ranges,
7234 layout,
7235 content_origin,
7236 line_y,
7237 row,
7238 line_height,
7239 whitespace_setting,
7240 window,
7241 cx,
7242 );
7243 }
7244
7245 fn draw_background(
7246 &self,
7247 layout: &EditorLayout,
7248 row: DisplayRow,
7249 content_origin: gpui::Point<Pixels>,
7250 window: &mut Window,
7251 cx: &mut App,
7252 ) {
7253 let line_height = layout.position_map.line_height;
7254 let line_y = line_height
7255 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
7256
7257 let mut fragment_origin =
7258 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
7259
7260 for fragment in &self.fragments {
7261 match fragment {
7262 LineFragment::Text(line) => {
7263 line.paint_background(fragment_origin, line_height, window, cx)
7264 .log_err();
7265 fragment_origin.x += line.width;
7266 }
7267 LineFragment::Element { size, .. } => {
7268 fragment_origin.x += size.width;
7269 }
7270 }
7271 }
7272 }
7273
7274 fn draw_invisibles(
7275 &self,
7276 selection_ranges: &[Range<DisplayPoint>],
7277 layout: &EditorLayout,
7278 content_origin: gpui::Point<Pixels>,
7279 line_y: Pixels,
7280 row: DisplayRow,
7281 line_height: Pixels,
7282 whitespace_setting: ShowWhitespaceSetting,
7283 window: &mut Window,
7284 cx: &mut App,
7285 ) {
7286 let extract_whitespace_info = |invisible: &Invisible| {
7287 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
7288 Invisible::Tab {
7289 line_start_offset,
7290 line_end_offset,
7291 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
7292 Invisible::Whitespace { line_offset } => {
7293 (*line_offset, line_offset + 1, &layout.space_invisible)
7294 }
7295 };
7296
7297 let x_offset = self.x_for_index(token_offset);
7298 let invisible_offset =
7299 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
7300 let origin = content_origin
7301 + gpui::point(
7302 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
7303 line_y,
7304 );
7305
7306 (
7307 [token_offset, token_end_offset],
7308 Box::new(move |window: &mut Window, cx: &mut App| {
7309 invisible_symbol
7310 .paint(origin, line_height, window, cx)
7311 .log_err();
7312 }),
7313 )
7314 };
7315
7316 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
7317 match whitespace_setting {
7318 ShowWhitespaceSetting::None => (),
7319 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
7320 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
7321 let invisible_point = DisplayPoint::new(row, start as u32);
7322 if !selection_ranges
7323 .iter()
7324 .any(|region| region.start <= invisible_point && invisible_point < region.end)
7325 {
7326 return;
7327 }
7328
7329 paint(window, cx);
7330 }),
7331
7332 ShowWhitespaceSetting::Trailing => {
7333 let mut previous_start = self.len;
7334 for ([start, end], paint) in invisible_iter.rev() {
7335 if previous_start != end {
7336 break;
7337 }
7338 previous_start = start;
7339 paint(window, cx);
7340 }
7341 }
7342
7343 // For a whitespace to be on a boundary, any of the following conditions need to be met:
7344 // - It is a tab
7345 // - It is adjacent to an edge (start or end)
7346 // - It is adjacent to a whitespace (left or right)
7347 ShowWhitespaceSetting::Boundary => {
7348 // 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
7349 // the above cases.
7350 // Note: We zip in the original `invisibles` to check for tab equality
7351 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
7352 for (([start, end], paint), invisible) in
7353 invisible_iter.zip_eq(self.invisibles.iter())
7354 {
7355 let should_render = match (&last_seen, invisible) {
7356 (_, Invisible::Tab { .. }) => true,
7357 (Some((_, last_end, _)), _) => *last_end == start,
7358 _ => false,
7359 };
7360
7361 if should_render || start == 0 || end == self.len {
7362 paint(window, cx);
7363
7364 // Since we are scanning from the left, we will skip over the first available whitespace that is part
7365 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
7366 if let Some((should_render_last, last_end, paint_last)) = last_seen {
7367 // Note that we need to make sure that the last one is actually adjacent
7368 if !should_render_last && last_end == start {
7369 paint_last(window, cx);
7370 }
7371 }
7372 }
7373
7374 // Manually render anything within a selection
7375 let invisible_point = DisplayPoint::new(row, start as u32);
7376 if selection_ranges.iter().any(|region| {
7377 region.start <= invisible_point && invisible_point < region.end
7378 }) {
7379 paint(window, cx);
7380 }
7381
7382 last_seen = Some((should_render, end, paint));
7383 }
7384 }
7385 }
7386 }
7387
7388 pub fn x_for_index(&self, index: usize) -> Pixels {
7389 let mut fragment_start_x = Pixels::ZERO;
7390 let mut fragment_start_index = 0;
7391
7392 for fragment in &self.fragments {
7393 match fragment {
7394 LineFragment::Text(shaped_line) => {
7395 let fragment_end_index = fragment_start_index + shaped_line.len;
7396 if index < fragment_end_index {
7397 return fragment_start_x
7398 + shaped_line.x_for_index(index - fragment_start_index);
7399 }
7400 fragment_start_x += shaped_line.width;
7401 fragment_start_index = fragment_end_index;
7402 }
7403 LineFragment::Element { len, size, .. } => {
7404 let fragment_end_index = fragment_start_index + len;
7405 if index < fragment_end_index {
7406 return fragment_start_x;
7407 }
7408 fragment_start_x += size.width;
7409 fragment_start_index = fragment_end_index;
7410 }
7411 }
7412 }
7413
7414 fragment_start_x
7415 }
7416
7417 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
7418 let mut fragment_start_x = Pixels::ZERO;
7419 let mut fragment_start_index = 0;
7420
7421 for fragment in &self.fragments {
7422 match fragment {
7423 LineFragment::Text(shaped_line) => {
7424 let fragment_end_x = fragment_start_x + shaped_line.width;
7425 if x < fragment_end_x {
7426 return Some(
7427 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
7428 );
7429 }
7430 fragment_start_x = fragment_end_x;
7431 fragment_start_index += shaped_line.len;
7432 }
7433 LineFragment::Element { len, size, .. } => {
7434 let fragment_end_x = fragment_start_x + size.width;
7435 if x < fragment_end_x {
7436 return Some(fragment_start_index);
7437 }
7438 fragment_start_index += len;
7439 fragment_start_x = fragment_end_x;
7440 }
7441 }
7442 }
7443
7444 None
7445 }
7446
7447 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
7448 let mut fragment_start_index = 0;
7449
7450 for fragment in &self.fragments {
7451 match fragment {
7452 LineFragment::Text(shaped_line) => {
7453 let fragment_end_index = fragment_start_index + shaped_line.len;
7454 if index < fragment_end_index {
7455 return shaped_line.font_id_for_index(index - fragment_start_index);
7456 }
7457 fragment_start_index = fragment_end_index;
7458 }
7459 LineFragment::Element { len, .. } => {
7460 let fragment_end_index = fragment_start_index + len;
7461 if index < fragment_end_index {
7462 return None;
7463 }
7464 fragment_start_index = fragment_end_index;
7465 }
7466 }
7467 }
7468
7469 None
7470 }
7471}
7472
7473#[derive(Debug, Clone, Copy, PartialEq, Eq)]
7474enum Invisible {
7475 /// A tab character
7476 ///
7477 /// A tab character is internally represented by spaces (configured by the user's tab width)
7478 /// aligned to the nearest column, so it's necessary to store the start and end offset for
7479 /// adjacency checks.
7480 Tab {
7481 line_start_offset: usize,
7482 line_end_offset: usize,
7483 },
7484 Whitespace {
7485 line_offset: usize,
7486 },
7487}
7488
7489impl EditorElement {
7490 /// Returns the rem size to use when rendering the [`EditorElement`].
7491 ///
7492 /// This allows UI elements to scale based on the `buffer_font_size`.
7493 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
7494 match self.editor.read(cx).mode {
7495 EditorMode::Full {
7496 scale_ui_elements_with_buffer_font_size: true,
7497 ..
7498 }
7499 | EditorMode::Minimap { .. } => {
7500 let buffer_font_size = self.style.text.font_size;
7501 match buffer_font_size {
7502 AbsoluteLength::Pixels(pixels) => {
7503 let rem_size_scale = {
7504 // Our default UI font size is 14px on a 16px base scale.
7505 // This means the default UI font size is 0.875rems.
7506 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
7507
7508 // We then determine the delta between a single rem and the default font
7509 // size scale.
7510 let default_font_size_delta = 1. - default_font_size_scale;
7511
7512 // Finally, we add this delta to 1rem to get the scale factor that
7513 // should be used to scale up the UI.
7514 1. + default_font_size_delta
7515 };
7516
7517 Some(pixels * rem_size_scale)
7518 }
7519 AbsoluteLength::Rems(rems) => {
7520 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
7521 }
7522 }
7523 }
7524 // We currently use single-line and auto-height editors in UI contexts,
7525 // so we don't want to scale everything with the buffer font size, as it
7526 // ends up looking off.
7527 _ => None,
7528 }
7529 }
7530
7531 fn editor_with_selections(&self, cx: &App) -> Option<Entity<Editor>> {
7532 if let EditorMode::Minimap { parent } = self.editor.read(cx).mode() {
7533 parent.upgrade()
7534 } else {
7535 Some(self.editor.clone())
7536 }
7537 }
7538}
7539
7540impl Element for EditorElement {
7541 type RequestLayoutState = ();
7542 type PrepaintState = EditorLayout;
7543
7544 fn id(&self) -> Option<ElementId> {
7545 None
7546 }
7547
7548 fn source_location(&self) -> Option<&'static core::panic::Location<'static>> {
7549 None
7550 }
7551
7552 fn request_layout(
7553 &mut self,
7554 _: Option<&GlobalElementId>,
7555 __inspector_id: Option<&gpui::InspectorElementId>,
7556 window: &mut Window,
7557 cx: &mut App,
7558 ) -> (gpui::LayoutId, ()) {
7559 let rem_size = self.rem_size(cx);
7560 window.with_rem_size(rem_size, |window| {
7561 self.editor.update(cx, |editor, cx| {
7562 editor.set_style(self.style.clone(), window, cx);
7563
7564 let layout_id = match editor.mode {
7565 EditorMode::SingleLine { auto_width } => {
7566 let rem_size = window.rem_size();
7567
7568 let height = self.style.text.line_height_in_pixels(rem_size);
7569 if auto_width {
7570 let editor_handle = cx.entity().clone();
7571 let style = self.style.clone();
7572 window.request_measured_layout(
7573 Style::default(),
7574 move |_, _, window, cx| {
7575 let editor_snapshot = editor_handle
7576 .update(cx, |editor, cx| editor.snapshot(window, cx));
7577 let line = Self::layout_lines(
7578 DisplayRow(0)..DisplayRow(1),
7579 &editor_snapshot,
7580 &style,
7581 px(f32::MAX),
7582 |_| false, // Single lines never soft wrap
7583 window,
7584 cx,
7585 )
7586 .pop()
7587 .unwrap();
7588
7589 let font_id =
7590 window.text_system().resolve_font(&style.text.font());
7591 let font_size =
7592 style.text.font_size.to_pixels(window.rem_size());
7593 let em_width =
7594 window.text_system().em_width(font_id, font_size).unwrap();
7595
7596 size(line.width + em_width, height)
7597 },
7598 )
7599 } else {
7600 let mut style = Style::default();
7601 style.size.height = height.into();
7602 style.size.width = relative(1.).into();
7603 window.request_layout(style, None, cx)
7604 }
7605 }
7606 EditorMode::AutoHeight { max_lines } => {
7607 let editor_handle = cx.entity().clone();
7608 let max_line_number_width =
7609 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
7610 window.request_measured_layout(
7611 Style::default(),
7612 move |known_dimensions, available_space, window, cx| {
7613 editor_handle
7614 .update(cx, |editor, cx| {
7615 compute_auto_height_layout(
7616 editor,
7617 max_lines,
7618 max_line_number_width,
7619 known_dimensions,
7620 available_space.width,
7621 window,
7622 cx,
7623 )
7624 })
7625 .unwrap_or_default()
7626 },
7627 )
7628 }
7629 EditorMode::Minimap { .. } => {
7630 let mut style = Style::default();
7631 style.size.width = relative(1.).into();
7632 style.size.height = relative(1.).into();
7633 window.request_layout(style, None, cx)
7634 }
7635 EditorMode::Full {
7636 sized_by_content, ..
7637 } => {
7638 let mut style = Style::default();
7639 style.size.width = relative(1.).into();
7640 if sized_by_content {
7641 let snapshot = editor.snapshot(window, cx);
7642 let line_height =
7643 self.style.text.line_height_in_pixels(window.rem_size());
7644 let scroll_height =
7645 (snapshot.max_point().row().next_row().0 as f32) * line_height;
7646 style.size.height = scroll_height.into();
7647 } else {
7648 style.size.height = relative(1.).into();
7649 }
7650 window.request_layout(style, None, cx)
7651 }
7652 };
7653
7654 (layout_id, ())
7655 })
7656 })
7657 }
7658
7659 fn prepaint(
7660 &mut self,
7661 _: Option<&GlobalElementId>,
7662 _inspector_id: Option<&gpui::InspectorElementId>,
7663 bounds: Bounds<Pixels>,
7664 _: &mut Self::RequestLayoutState,
7665 window: &mut Window,
7666 cx: &mut App,
7667 ) -> Self::PrepaintState {
7668 let text_style = TextStyleRefinement {
7669 font_size: Some(self.style.text.font_size),
7670 line_height: Some(self.style.text.line_height),
7671 ..Default::default()
7672 };
7673 let focus_handle = self.editor.focus_handle(cx);
7674 window.set_view_id(self.editor.entity_id());
7675 window.set_focus_handle(&focus_handle, cx);
7676
7677 let rem_size = self.rem_size(cx);
7678 window.with_rem_size(rem_size, |window| {
7679 window.with_text_style(Some(text_style), |window| {
7680 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7681 let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| {
7682 (editor.snapshot(window, cx), editor.read_only(cx))
7683 });
7684 let style = self.style.clone();
7685
7686 let font_id = window.text_system().resolve_font(&style.text.font());
7687 let font_size = style.text.font_size.to_pixels(window.rem_size());
7688 let line_height = style.text.line_height_in_pixels(window.rem_size());
7689 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
7690 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
7691
7692 let glyph_grid_cell = size(em_width, line_height);
7693
7694 let gutter_dimensions = snapshot
7695 .gutter_dimensions(
7696 font_id,
7697 font_size,
7698 self.max_line_number_width(&snapshot, window, cx),
7699 cx,
7700 )
7701 .or_else(|| {
7702 self.editor.read(cx).offset_content.then(|| {
7703 GutterDimensions::default_with_margin(font_id, font_size, cx)
7704 })
7705 })
7706 .unwrap_or_default();
7707 let text_width = bounds.size.width - gutter_dimensions.width;
7708
7709 let settings = EditorSettings::get_global(cx);
7710 let scrollbars_shown = settings.scrollbar.show != ShowScrollbar::Never;
7711 let vertical_scrollbar_width = (scrollbars_shown
7712 && settings.scrollbar.axes.vertical
7713 && self.editor.read(cx).show_scrollbars.vertical)
7714 .then_some(style.scrollbar_width)
7715 .unwrap_or_default();
7716 let minimap_width = self
7717 .editor
7718 .read(cx)
7719 .minimap()
7720 .is_some()
7721 .then(|| match settings.minimap.show {
7722 ShowMinimap::Auto => {
7723 scrollbars_shown.then_some(MinimapLayout::MINIMAP_WIDTH)
7724 }
7725 _ => Some(MinimapLayout::MINIMAP_WIDTH),
7726 })
7727 .flatten()
7728 .filter(|minimap_width| {
7729 text_width - vertical_scrollbar_width - *minimap_width > *minimap_width
7730 })
7731 .unwrap_or_default();
7732
7733 let right_margin = minimap_width + vertical_scrollbar_width;
7734
7735 let editor_width =
7736 text_width - gutter_dimensions.margin - 2 * em_width - right_margin;
7737
7738 let editor_margins = EditorMargins {
7739 gutter: gutter_dimensions,
7740 right: right_margin,
7741 };
7742
7743 // Offset the content_bounds from the text_bounds by the gutter margin (which
7744 // is roughly half a character wide) to make hit testing work more like how we want.
7745 let content_offset = point(editor_margins.gutter.margin, Pixels::ZERO);
7746
7747 let editor_content_width = editor_width - content_offset.x;
7748
7749 snapshot = self.editor.update(cx, |editor, cx| {
7750 editor.last_bounds = Some(bounds);
7751 editor.gutter_dimensions = gutter_dimensions;
7752 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
7753
7754 if matches!(
7755 editor.mode,
7756 EditorMode::AutoHeight { .. } | EditorMode::Minimap { .. }
7757 ) {
7758 snapshot
7759 } else {
7760 let wrap_width_for = |column: u32| (column as f32 * em_advance).ceil();
7761 let wrap_width = match editor.soft_wrap_mode(cx) {
7762 SoftWrap::GitDiff => None,
7763 SoftWrap::None => Some(wrap_width_for(MAX_LINE_LEN as u32 / 2)),
7764 SoftWrap::EditorWidth => Some(editor_content_width),
7765 SoftWrap::Column(column) => Some(wrap_width_for(column)),
7766 SoftWrap::Bounded(column) => {
7767 Some(editor_content_width.min(wrap_width_for(column)))
7768 }
7769 };
7770
7771 if editor.set_wrap_width(wrap_width, cx) {
7772 editor.snapshot(window, cx)
7773 } else {
7774 snapshot
7775 }
7776 }
7777 });
7778
7779 let wrap_guides = self
7780 .editor
7781 .read(cx)
7782 .wrap_guides(cx)
7783 .iter()
7784 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
7785 .collect::<SmallVec<[_; 2]>>();
7786
7787 let hitbox = window.insert_hitbox(bounds, HitboxBehavior::Normal);
7788 let gutter_hitbox = window.insert_hitbox(
7789 gutter_bounds(bounds, gutter_dimensions),
7790 HitboxBehavior::Normal,
7791 );
7792 let text_hitbox = window.insert_hitbox(
7793 Bounds {
7794 origin: gutter_hitbox.top_right(),
7795 size: size(text_width, bounds.size.height),
7796 },
7797 HitboxBehavior::Normal,
7798 );
7799
7800 let content_origin = text_hitbox.origin + content_offset;
7801
7802 let editor_text_bounds =
7803 Bounds::from_corners(content_origin, bounds.bottom_right());
7804
7805 let height_in_lines = editor_text_bounds.size.height / line_height;
7806
7807 let max_row = snapshot.max_point().row().as_f32();
7808
7809 // The max scroll position for the top of the window
7810 let max_scroll_top = if matches!(
7811 snapshot.mode,
7812 EditorMode::SingleLine { .. }
7813 | EditorMode::AutoHeight { .. }
7814 | EditorMode::Full {
7815 sized_by_content: true,
7816 ..
7817 }
7818 ) {
7819 (max_row - height_in_lines + 1.).max(0.)
7820 } else {
7821 let settings = EditorSettings::get_global(cx);
7822 match settings.scroll_beyond_last_line {
7823 ScrollBeyondLastLine::OnePage => max_row,
7824 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
7825 ScrollBeyondLastLine::VerticalScrollMargin => {
7826 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
7827 .max(0.)
7828 }
7829 }
7830 };
7831
7832 // TODO: Autoscrolling for both axes
7833 let mut autoscroll_request = None;
7834 let mut autoscroll_containing_element = false;
7835 let mut autoscroll_horizontally = false;
7836 self.editor.update(cx, |editor, cx| {
7837 autoscroll_request = editor.autoscroll_request();
7838 autoscroll_containing_element =
7839 autoscroll_request.is_some() || editor.has_pending_selection();
7840 // TODO: Is this horizontal or vertical?!
7841 autoscroll_horizontally = editor.autoscroll_vertically(
7842 bounds,
7843 line_height,
7844 max_scroll_top,
7845 window,
7846 cx,
7847 );
7848 snapshot = editor.snapshot(window, cx);
7849 });
7850
7851 let mut scroll_position = snapshot.scroll_position();
7852 // The scroll position is a fractional point, the whole number of which represents
7853 // the top of the window in terms of display rows.
7854 let start_row = DisplayRow(scroll_position.y as u32);
7855 let max_row = snapshot.max_point().row();
7856 let end_row = cmp::min(
7857 (scroll_position.y + height_in_lines).ceil() as u32,
7858 max_row.next_row().0,
7859 );
7860 let end_row = DisplayRow(end_row);
7861
7862 let row_infos = snapshot
7863 .row_infos(start_row)
7864 .take((start_row..end_row).len())
7865 .collect::<Vec<RowInfo>>();
7866 let is_row_soft_wrapped = |row: usize| {
7867 row_infos
7868 .get(row)
7869 .map_or(true, |info| info.buffer_row.is_none())
7870 };
7871
7872 let start_anchor = if start_row == Default::default() {
7873 Anchor::min()
7874 } else {
7875 snapshot.buffer_snapshot.anchor_before(
7876 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
7877 )
7878 };
7879 let end_anchor = if end_row > max_row {
7880 Anchor::max()
7881 } else {
7882 snapshot.buffer_snapshot.anchor_before(
7883 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
7884 )
7885 };
7886
7887 let mut highlighted_rows = self
7888 .editor
7889 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
7890
7891 let is_light = cx.theme().appearance().is_light();
7892
7893 for (ix, row_info) in row_infos.iter().enumerate() {
7894 let Some(diff_status) = row_info.diff_status else {
7895 continue;
7896 };
7897
7898 let background_color = match diff_status.kind {
7899 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
7900 DiffHunkStatusKind::Deleted => {
7901 cx.theme().colors().version_control_deleted
7902 }
7903 DiffHunkStatusKind::Modified => {
7904 debug_panic!("modified diff status for row info");
7905 continue;
7906 }
7907 };
7908
7909 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
7910
7911 let hollow_highlight = LineHighlight {
7912 background: (background_color.opacity(if is_light {
7913 0.08
7914 } else {
7915 0.06
7916 }))
7917 .into(),
7918 border: Some(if is_light {
7919 background_color.opacity(0.48)
7920 } else {
7921 background_color.opacity(0.36)
7922 }),
7923 include_gutter: true,
7924 type_id: None,
7925 };
7926
7927 let filled_highlight = LineHighlight {
7928 background: solid_background(background_color.opacity(hunk_opacity)),
7929 border: None,
7930 include_gutter: true,
7931 type_id: None,
7932 };
7933
7934 let background = if Self::diff_hunk_hollow(diff_status, cx) {
7935 hollow_highlight
7936 } else {
7937 filled_highlight
7938 };
7939
7940 highlighted_rows
7941 .entry(start_row + DisplayRow(ix as u32))
7942 .or_insert(background);
7943 }
7944
7945 let highlighted_ranges = self
7946 .editor_with_selections(cx)
7947 .map(|editor| {
7948 editor.read(cx).background_highlights_in_range(
7949 start_anchor..end_anchor,
7950 &snapshot.display_snapshot,
7951 cx.theme().colors(),
7952 )
7953 })
7954 .unwrap_or_default();
7955 let highlighted_gutter_ranges =
7956 self.editor.read(cx).gutter_highlights_in_range(
7957 start_anchor..end_anchor,
7958 &snapshot.display_snapshot,
7959 cx,
7960 );
7961
7962 let redacted_ranges = self.editor.read(cx).redacted_ranges(
7963 start_anchor..end_anchor,
7964 &snapshot.display_snapshot,
7965 cx,
7966 );
7967
7968 let (local_selections, selected_buffer_ids): (
7969 Vec<Selection<Point>>,
7970 Vec<BufferId>,
7971 ) = self
7972 .editor_with_selections(cx)
7973 .map(|editor| {
7974 editor.update(cx, |editor, cx| {
7975 let all_selections = editor.selections.all::<Point>(cx);
7976 let selected_buffer_ids = if editor.is_singleton(cx) {
7977 Vec::new()
7978 } else {
7979 let mut selected_buffer_ids =
7980 Vec::with_capacity(all_selections.len());
7981
7982 for selection in all_selections {
7983 for buffer_id in snapshot
7984 .buffer_snapshot
7985 .buffer_ids_for_range(selection.range())
7986 {
7987 if selected_buffer_ids.last() != Some(&buffer_id) {
7988 selected_buffer_ids.push(buffer_id);
7989 }
7990 }
7991 }
7992
7993 selected_buffer_ids
7994 };
7995
7996 let mut selections = editor
7997 .selections
7998 .disjoint_in_range(start_anchor..end_anchor, cx);
7999 selections.extend(editor.selections.pending(cx));
8000
8001 (selections, selected_buffer_ids)
8002 })
8003 })
8004 .unwrap_or_default();
8005
8006 let (selections, mut active_rows, newest_selection_head) = self
8007 .layout_selections(
8008 start_anchor,
8009 end_anchor,
8010 &local_selections,
8011 &snapshot,
8012 start_row,
8013 end_row,
8014 window,
8015 cx,
8016 );
8017 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
8018 editor.active_breakpoints(start_row..end_row, window, cx)
8019 });
8020 if cx.has_flag::<DebuggerFeatureFlag>() {
8021 for (display_row, (_, bp, state)) in &breakpoint_rows {
8022 if bp.is_enabled() && state.is_none_or(|s| s.verified) {
8023 active_rows.entry(*display_row).or_default().breakpoint = true;
8024 }
8025 }
8026 }
8027
8028 let line_numbers = self.layout_line_numbers(
8029 Some(&gutter_hitbox),
8030 gutter_dimensions,
8031 line_height,
8032 scroll_position,
8033 start_row..end_row,
8034 &row_infos,
8035 &active_rows,
8036 newest_selection_head,
8037 &snapshot,
8038 window,
8039 cx,
8040 );
8041
8042 // We add the gutter breakpoint indicator to breakpoint_rows after painting
8043 // line numbers so we don't paint a line number debug accent color if a user
8044 // has their mouse over that line when a breakpoint isn't there
8045 if cx.has_flag::<DebuggerFeatureFlag>() {
8046 self.editor.update(cx, |editor, _| {
8047 if let Some(phantom_breakpoint) = &mut editor
8048 .gutter_breakpoint_indicator
8049 .0
8050 .filter(|phantom_breakpoint| phantom_breakpoint.is_active)
8051 {
8052 // Is there a non-phantom breakpoint on this line?
8053 phantom_breakpoint.collides_with_existing_breakpoint = true;
8054 breakpoint_rows
8055 .entry(phantom_breakpoint.display_row)
8056 .or_insert_with(|| {
8057 let position = snapshot.display_point_to_anchor(
8058 DisplayPoint::new(phantom_breakpoint.display_row, 0),
8059 Bias::Right,
8060 );
8061 let breakpoint = Breakpoint::new_standard();
8062 phantom_breakpoint.collides_with_existing_breakpoint =
8063 false;
8064 (position, breakpoint, None)
8065 });
8066 }
8067 })
8068 }
8069
8070 let mut expand_toggles =
8071 window.with_element_namespace("expand_toggles", |window| {
8072 self.layout_expand_toggles(
8073 &gutter_hitbox,
8074 gutter_dimensions,
8075 em_width,
8076 line_height,
8077 scroll_position,
8078 &row_infos,
8079 window,
8080 cx,
8081 )
8082 });
8083
8084 let mut crease_toggles =
8085 window.with_element_namespace("crease_toggles", |window| {
8086 self.layout_crease_toggles(
8087 start_row..end_row,
8088 &row_infos,
8089 &active_rows,
8090 &snapshot,
8091 window,
8092 cx,
8093 )
8094 });
8095 let crease_trailers =
8096 window.with_element_namespace("crease_trailers", |window| {
8097 self.layout_crease_trailers(
8098 row_infos.iter().copied(),
8099 &snapshot,
8100 window,
8101 cx,
8102 )
8103 });
8104
8105 let display_hunks = self.layout_gutter_diff_hunks(
8106 line_height,
8107 &gutter_hitbox,
8108 start_row..end_row,
8109 &snapshot,
8110 window,
8111 cx,
8112 );
8113
8114 let mut line_layouts = Self::layout_lines(
8115 start_row..end_row,
8116 &snapshot,
8117 &self.style,
8118 editor_width,
8119 is_row_soft_wrapped,
8120 window,
8121 cx,
8122 );
8123 let new_fold_widths = line_layouts
8124 .iter()
8125 .flat_map(|layout| &layout.fragments)
8126 .filter_map(|fragment| {
8127 if let LineFragment::Element { id, size, .. } = fragment {
8128 Some((*id, size.width))
8129 } else {
8130 None
8131 }
8132 });
8133 if self.editor.update(cx, |editor, cx| {
8134 editor.update_fold_widths(new_fold_widths, cx)
8135 }) {
8136 // If the fold widths have changed, we need to prepaint
8137 // the element again to account for any changes in
8138 // wrapping.
8139 return self.prepaint(None, _inspector_id, bounds, &mut (), window, cx);
8140 }
8141
8142 let longest_line_blame_width = self
8143 .editor
8144 .update(cx, |editor, cx| {
8145 if !editor.show_git_blame_inline {
8146 return None;
8147 }
8148 let blame = editor.blame.as_ref()?;
8149 let blame_entry = blame
8150 .update(cx, |blame, cx| {
8151 let row_infos =
8152 snapshot.row_infos(snapshot.longest_row()).next()?;
8153 blame.blame_for_rows(&[row_infos], cx).next()
8154 })
8155 .flatten()?;
8156 let mut element = render_inline_blame_entry(blame_entry, &style, cx)?;
8157 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
8158 Some(
8159 element
8160 .layout_as_root(AvailableSpace::min_size(), window, cx)
8161 .width
8162 + inline_blame_padding,
8163 )
8164 })
8165 .unwrap_or(Pixels::ZERO);
8166
8167 let longest_line_width = layout_line(
8168 snapshot.longest_row(),
8169 &snapshot,
8170 &style,
8171 editor_width,
8172 is_row_soft_wrapped,
8173 window,
8174 cx,
8175 )
8176 .width;
8177
8178 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
8179 text_hitbox.bounds,
8180 glyph_grid_cell,
8181 size(longest_line_width, max_row.as_f32() * line_height),
8182 longest_line_blame_width,
8183 editor_width,
8184 EditorSettings::get_global(cx),
8185 );
8186
8187 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
8188
8189 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
8190 snapshot.sticky_header_excerpt(scroll_position.y)
8191 } else {
8192 None
8193 };
8194 let sticky_header_excerpt_id =
8195 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
8196
8197 let blocks = window.with_element_namespace("blocks", |window| {
8198 self.render_blocks(
8199 start_row..end_row,
8200 &snapshot,
8201 &hitbox,
8202 &text_hitbox,
8203 editor_width,
8204 &mut scroll_width,
8205 &editor_margins,
8206 em_width,
8207 gutter_dimensions.full_width(),
8208 line_height,
8209 &mut line_layouts,
8210 &local_selections,
8211 &selected_buffer_ids,
8212 is_row_soft_wrapped,
8213 sticky_header_excerpt_id,
8214 window,
8215 cx,
8216 )
8217 });
8218 let (mut blocks, row_block_types) = match blocks {
8219 Ok(blocks) => blocks,
8220 Err(resized_blocks) => {
8221 self.editor.update(cx, |editor, cx| {
8222 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
8223 });
8224 return self.prepaint(None, _inspector_id, bounds, &mut (), window, cx);
8225 }
8226 };
8227
8228 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
8229 window.with_element_namespace("blocks", |window| {
8230 self.layout_sticky_buffer_header(
8231 sticky_header_excerpt,
8232 scroll_position.y,
8233 line_height,
8234 right_margin,
8235 &snapshot,
8236 &hitbox,
8237 &selected_buffer_ids,
8238 &blocks,
8239 window,
8240 cx,
8241 )
8242 })
8243 });
8244
8245 let start_buffer_row =
8246 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
8247 let end_buffer_row =
8248 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
8249
8250 let scroll_max = point(
8251 ((scroll_width - editor_content_width) / em_width).max(0.0),
8252 max_scroll_top,
8253 );
8254
8255 self.editor.update(cx, |editor, cx| {
8256 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
8257
8258 let autoscrolled = if autoscroll_horizontally {
8259 editor.autoscroll_horizontally(
8260 start_row,
8261 editor_content_width,
8262 scroll_width,
8263 em_width,
8264 &line_layouts,
8265 cx,
8266 )
8267 } else {
8268 false
8269 };
8270
8271 if clamped || autoscrolled {
8272 snapshot = editor.snapshot(window, cx);
8273 scroll_position = snapshot.scroll_position();
8274 }
8275 });
8276
8277 let scroll_pixel_position = point(
8278 scroll_position.x * em_width,
8279 scroll_position.y * line_height,
8280 );
8281
8282 let indent_guides = self.layout_indent_guides(
8283 content_origin,
8284 text_hitbox.origin,
8285 start_buffer_row..end_buffer_row,
8286 scroll_pixel_position,
8287 line_height,
8288 &snapshot,
8289 window,
8290 cx,
8291 );
8292
8293 let crease_trailers =
8294 window.with_element_namespace("crease_trailers", |window| {
8295 self.prepaint_crease_trailers(
8296 crease_trailers,
8297 &line_layouts,
8298 line_height,
8299 content_origin,
8300 scroll_pixel_position,
8301 em_width,
8302 window,
8303 cx,
8304 )
8305 });
8306
8307 let (inline_completion_popover, inline_completion_popover_origin) = self
8308 .editor
8309 .update(cx, |editor, cx| {
8310 editor.render_edit_prediction_popover(
8311 &text_hitbox.bounds,
8312 content_origin,
8313 right_margin,
8314 &snapshot,
8315 start_row..end_row,
8316 scroll_position.y,
8317 scroll_position.y + height_in_lines,
8318 &line_layouts,
8319 line_height,
8320 scroll_pixel_position,
8321 newest_selection_head,
8322 editor_width,
8323 &style,
8324 window,
8325 cx,
8326 )
8327 })
8328 .unzip();
8329
8330 let mut inline_diagnostics = self.layout_inline_diagnostics(
8331 &line_layouts,
8332 &crease_trailers,
8333 &row_block_types,
8334 content_origin,
8335 scroll_pixel_position,
8336 inline_completion_popover_origin,
8337 start_row,
8338 end_row,
8339 line_height,
8340 em_width,
8341 &style,
8342 window,
8343 cx,
8344 );
8345
8346 let mut inline_blame = None;
8347 let mut inline_code_actions = None;
8348 if let Some(newest_selection_head) = newest_selection_head {
8349 let display_row = newest_selection_head.row();
8350 if (start_row..end_row).contains(&display_row)
8351 && !row_block_types.contains_key(&display_row)
8352 {
8353 inline_code_actions = self.layout_inline_code_actions(
8354 newest_selection_head,
8355 content_origin,
8356 scroll_pixel_position,
8357 line_height,
8358 &snapshot,
8359 window,
8360 cx,
8361 );
8362
8363 let line_ix = display_row.minus(start_row) as usize;
8364 let row_info = &row_infos[line_ix];
8365 let line_layout = &line_layouts[line_ix];
8366 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
8367
8368 inline_blame = self.layout_inline_blame(
8369 display_row,
8370 row_info,
8371 line_layout,
8372 crease_trailer_layout,
8373 em_width,
8374 content_origin,
8375 scroll_pixel_position,
8376 line_height,
8377 &text_hitbox,
8378 window,
8379 cx,
8380 );
8381 if inline_blame.is_some() {
8382 // Blame overrides inline diagnostics
8383 inline_diagnostics.remove(&display_row);
8384 }
8385 }
8386 }
8387
8388 let blamed_display_rows = self.layout_blame_entries(
8389 &row_infos,
8390 em_width,
8391 scroll_position,
8392 line_height,
8393 &gutter_hitbox,
8394 gutter_dimensions.git_blame_entries_width,
8395 window,
8396 cx,
8397 );
8398
8399 self.editor.update(cx, |editor, cx| {
8400 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
8401
8402 let autoscrolled = if autoscroll_horizontally {
8403 editor.autoscroll_horizontally(
8404 start_row,
8405 editor_content_width,
8406 scroll_width,
8407 em_width,
8408 &line_layouts,
8409 cx,
8410 )
8411 } else {
8412 false
8413 };
8414
8415 if clamped || autoscrolled {
8416 snapshot = editor.snapshot(window, cx);
8417 scroll_position = snapshot.scroll_position();
8418 }
8419 });
8420
8421 let line_elements = self.prepaint_lines(
8422 start_row,
8423 &mut line_layouts,
8424 line_height,
8425 scroll_pixel_position,
8426 content_origin,
8427 window,
8428 cx,
8429 );
8430
8431 window.with_element_namespace("blocks", |window| {
8432 self.layout_blocks(
8433 &mut blocks,
8434 &hitbox,
8435 line_height,
8436 scroll_pixel_position,
8437 window,
8438 cx,
8439 );
8440 });
8441
8442 let cursors = self.collect_cursors(&snapshot, cx);
8443 let visible_row_range = start_row..end_row;
8444 let non_visible_cursors = cursors
8445 .iter()
8446 .any(|c| !visible_row_range.contains(&c.0.row()));
8447
8448 let visible_cursors = self.layout_visible_cursors(
8449 &snapshot,
8450 &selections,
8451 &row_block_types,
8452 start_row..end_row,
8453 &line_layouts,
8454 &text_hitbox,
8455 content_origin,
8456 scroll_position,
8457 scroll_pixel_position,
8458 line_height,
8459 em_width,
8460 em_advance,
8461 autoscroll_containing_element,
8462 window,
8463 cx,
8464 );
8465
8466 let scrollbars_layout = self.layout_scrollbars(
8467 &snapshot,
8468 &scrollbar_layout_information,
8469 content_offset,
8470 scroll_position,
8471 non_visible_cursors,
8472 right_margin,
8473 editor_width,
8474 window,
8475 cx,
8476 );
8477
8478 let gutter_settings = EditorSettings::get_global(cx).gutter;
8479
8480 let context_menu_layout =
8481 if let Some(newest_selection_head) = newest_selection_head {
8482 let newest_selection_point =
8483 newest_selection_head.to_point(&snapshot.display_snapshot);
8484 if (start_row..end_row).contains(&newest_selection_head.row()) {
8485 self.layout_cursor_popovers(
8486 line_height,
8487 &text_hitbox,
8488 content_origin,
8489 right_margin,
8490 start_row,
8491 scroll_pixel_position,
8492 &line_layouts,
8493 newest_selection_head,
8494 newest_selection_point,
8495 &style,
8496 window,
8497 cx,
8498 )
8499 } else {
8500 None
8501 }
8502 } else {
8503 None
8504 };
8505
8506 self.layout_gutter_menu(
8507 line_height,
8508 &text_hitbox,
8509 content_origin,
8510 right_margin,
8511 scroll_pixel_position,
8512 gutter_dimensions.width - gutter_dimensions.left_padding,
8513 window,
8514 cx,
8515 );
8516
8517 let test_indicators = if gutter_settings.runnables {
8518 self.layout_run_indicators(
8519 line_height,
8520 start_row..end_row,
8521 &row_infos,
8522 scroll_pixel_position,
8523 &gutter_dimensions,
8524 &gutter_hitbox,
8525 &display_hunks,
8526 &snapshot,
8527 &mut breakpoint_rows,
8528 window,
8529 cx,
8530 )
8531 } else {
8532 Vec::new()
8533 };
8534
8535 let show_breakpoints = snapshot
8536 .show_breakpoints
8537 .unwrap_or(gutter_settings.breakpoints);
8538 let breakpoints = if cx.has_flag::<DebuggerFeatureFlag>() && show_breakpoints {
8539 self.layout_breakpoints(
8540 line_height,
8541 start_row..end_row,
8542 scroll_pixel_position,
8543 &gutter_dimensions,
8544 &gutter_hitbox,
8545 &display_hunks,
8546 &snapshot,
8547 breakpoint_rows,
8548 &row_infos,
8549 window,
8550 cx,
8551 )
8552 } else {
8553 vec![]
8554 };
8555
8556 self.layout_signature_help(
8557 &hitbox,
8558 content_origin,
8559 scroll_pixel_position,
8560 newest_selection_head,
8561 start_row,
8562 &line_layouts,
8563 line_height,
8564 em_width,
8565 context_menu_layout,
8566 window,
8567 cx,
8568 );
8569
8570 if !cx.has_active_drag() {
8571 self.layout_hover_popovers(
8572 &snapshot,
8573 &hitbox,
8574 start_row..end_row,
8575 content_origin,
8576 scroll_pixel_position,
8577 &line_layouts,
8578 line_height,
8579 em_width,
8580 context_menu_layout,
8581 window,
8582 cx,
8583 );
8584 }
8585
8586 let mouse_context_menu = self.layout_mouse_context_menu(
8587 &snapshot,
8588 start_row..end_row,
8589 content_origin,
8590 window,
8591 cx,
8592 );
8593
8594 window.with_element_namespace("crease_toggles", |window| {
8595 self.prepaint_crease_toggles(
8596 &mut crease_toggles,
8597 line_height,
8598 &gutter_dimensions,
8599 gutter_settings,
8600 scroll_pixel_position,
8601 &gutter_hitbox,
8602 window,
8603 cx,
8604 )
8605 });
8606
8607 window.with_element_namespace("expand_toggles", |window| {
8608 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
8609 });
8610
8611 let minimap = window.with_element_namespace("minimap", |window| {
8612 self.layout_minimap(
8613 &snapshot,
8614 minimap_width,
8615 scroll_position,
8616 &scrollbar_layout_information,
8617 scrollbars_layout.as_ref(),
8618 window,
8619 cx,
8620 )
8621 });
8622
8623 let invisible_symbol_font_size = font_size / 2.;
8624 let tab_invisible = window.text_system().shape_line(
8625 "→".into(),
8626 invisible_symbol_font_size,
8627 &[TextRun {
8628 len: "→".len(),
8629 font: self.style.text.font(),
8630 color: cx.theme().colors().editor_invisible,
8631 background_color: None,
8632 underline: None,
8633 strikethrough: None,
8634 }],
8635 );
8636 let space_invisible = window.text_system().shape_line(
8637 "•".into(),
8638 invisible_symbol_font_size,
8639 &[TextRun {
8640 len: "•".len(),
8641 font: self.style.text.font(),
8642 color: cx.theme().colors().editor_invisible,
8643 background_color: None,
8644 underline: None,
8645 strikethrough: None,
8646 }],
8647 );
8648
8649 let mode = snapshot.mode.clone();
8650
8651 let position_map = Rc::new(PositionMap {
8652 size: bounds.size,
8653 visible_row_range,
8654 scroll_pixel_position,
8655 scroll_max,
8656 line_layouts,
8657 line_height,
8658 em_width,
8659 em_advance,
8660 snapshot,
8661 gutter_hitbox: gutter_hitbox.clone(),
8662 text_hitbox: text_hitbox.clone(),
8663 });
8664
8665 self.editor.update(cx, |editor, _| {
8666 editor.last_position_map = Some(position_map.clone())
8667 });
8668
8669 let diff_hunk_controls = if is_read_only {
8670 vec![]
8671 } else {
8672 self.layout_diff_hunk_controls(
8673 start_row..end_row,
8674 &row_infos,
8675 &text_hitbox,
8676 &position_map,
8677 newest_selection_head,
8678 line_height,
8679 right_margin,
8680 scroll_pixel_position,
8681 &display_hunks,
8682 &highlighted_rows,
8683 self.editor.clone(),
8684 window,
8685 cx,
8686 )
8687 };
8688
8689 EditorLayout {
8690 mode,
8691 position_map,
8692 visible_display_row_range: start_row..end_row,
8693 wrap_guides,
8694 indent_guides,
8695 hitbox,
8696 gutter_hitbox,
8697 display_hunks,
8698 content_origin,
8699 scrollbars_layout,
8700 minimap,
8701 active_rows,
8702 highlighted_rows,
8703 highlighted_ranges,
8704 highlighted_gutter_ranges,
8705 redacted_ranges,
8706 line_elements,
8707 line_numbers,
8708 blamed_display_rows,
8709 inline_diagnostics,
8710 inline_blame,
8711 inline_code_actions,
8712 blocks,
8713 cursors,
8714 visible_cursors,
8715 selections,
8716 inline_completion_popover,
8717 diff_hunk_controls,
8718 mouse_context_menu,
8719 test_indicators,
8720 breakpoints,
8721 crease_toggles,
8722 crease_trailers,
8723 tab_invisible,
8724 space_invisible,
8725 sticky_buffer_header,
8726 expand_toggles,
8727 }
8728 })
8729 })
8730 })
8731 }
8732
8733 fn paint(
8734 &mut self,
8735 _: Option<&GlobalElementId>,
8736 __inspector_id: Option<&gpui::InspectorElementId>,
8737 bounds: Bounds<gpui::Pixels>,
8738 _: &mut Self::RequestLayoutState,
8739 layout: &mut Self::PrepaintState,
8740 window: &mut Window,
8741 cx: &mut App,
8742 ) {
8743 let focus_handle = self.editor.focus_handle(cx);
8744 let key_context = self
8745 .editor
8746 .update(cx, |editor, cx| editor.key_context(window, cx));
8747
8748 window.set_key_context(key_context);
8749 window.handle_input(
8750 &focus_handle,
8751 ElementInputHandler::new(bounds, self.editor.clone()),
8752 cx,
8753 );
8754 self.register_actions(window, cx);
8755 self.register_key_listeners(window, cx, layout);
8756
8757 let text_style = TextStyleRefinement {
8758 font_size: Some(self.style.text.font_size),
8759 line_height: Some(self.style.text.line_height),
8760 ..Default::default()
8761 };
8762 let rem_size = self.rem_size(cx);
8763 window.with_rem_size(rem_size, |window| {
8764 window.with_text_style(Some(text_style), |window| {
8765 window.with_content_mask(Some(ContentMask { bounds }), |window| {
8766 self.paint_mouse_listeners(layout, window, cx);
8767 self.paint_background(layout, window, cx);
8768 self.paint_indent_guides(layout, window, cx);
8769
8770 if layout.gutter_hitbox.size.width > Pixels::ZERO {
8771 self.paint_blamed_display_rows(layout, window, cx);
8772 self.paint_line_numbers(layout, window, cx);
8773 }
8774
8775 self.paint_text(layout, window, cx);
8776
8777 if layout.gutter_hitbox.size.width > Pixels::ZERO {
8778 self.paint_gutter_highlights(layout, window, cx);
8779 self.paint_gutter_indicators(layout, window, cx);
8780 }
8781
8782 if !layout.blocks.is_empty() {
8783 window.with_element_namespace("blocks", |window| {
8784 self.paint_blocks(layout, window, cx);
8785 });
8786 }
8787
8788 window.with_element_namespace("blocks", |window| {
8789 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
8790 sticky_header.paint(window, cx)
8791 }
8792 });
8793
8794 self.paint_minimap(layout, window, cx);
8795 self.paint_scrollbars(layout, window, cx);
8796 self.paint_inline_completion_popover(layout, window, cx);
8797 self.paint_mouse_context_menu(layout, window, cx);
8798 });
8799 })
8800 })
8801 }
8802}
8803
8804pub(super) fn gutter_bounds(
8805 editor_bounds: Bounds<Pixels>,
8806 gutter_dimensions: GutterDimensions,
8807) -> Bounds<Pixels> {
8808 Bounds {
8809 origin: editor_bounds.origin,
8810 size: size(gutter_dimensions.width, editor_bounds.size.height),
8811 }
8812}
8813
8814#[derive(Clone, Copy)]
8815struct ContextMenuLayout {
8816 y_flipped: bool,
8817 bounds: Bounds<Pixels>,
8818}
8819
8820/// Holds information required for layouting the editor scrollbars.
8821struct ScrollbarLayoutInformation {
8822 /// The bounds of the editor area (excluding the content offset).
8823 editor_bounds: Bounds<Pixels>,
8824 /// The available range to scroll within the document.
8825 scroll_range: Size<Pixels>,
8826 /// The space available for one glyph in the editor.
8827 glyph_grid_cell: Size<Pixels>,
8828}
8829
8830impl ScrollbarLayoutInformation {
8831 pub fn new(
8832 editor_bounds: Bounds<Pixels>,
8833 glyph_grid_cell: Size<Pixels>,
8834 document_size: Size<Pixels>,
8835 longest_line_blame_width: Pixels,
8836 editor_width: Pixels,
8837 settings: &EditorSettings,
8838 ) -> Self {
8839 let vertical_overscroll = match settings.scroll_beyond_last_line {
8840 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
8841 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
8842 ScrollBeyondLastLine::VerticalScrollMargin => {
8843 (1.0 + settings.vertical_scroll_margin) * glyph_grid_cell.height
8844 }
8845 };
8846
8847 let right_margin = if document_size.width + longest_line_blame_width >= editor_width {
8848 glyph_grid_cell.width
8849 } else {
8850 px(0.0)
8851 };
8852
8853 let overscroll = size(right_margin + longest_line_blame_width, vertical_overscroll);
8854
8855 let scroll_range = document_size + overscroll;
8856
8857 ScrollbarLayoutInformation {
8858 editor_bounds,
8859 scroll_range,
8860 glyph_grid_cell,
8861 }
8862 }
8863}
8864
8865impl IntoElement for EditorElement {
8866 type Element = Self;
8867
8868 fn into_element(self) -> Self::Element {
8869 self
8870 }
8871}
8872
8873pub struct EditorLayout {
8874 position_map: Rc<PositionMap>,
8875 hitbox: Hitbox,
8876 gutter_hitbox: Hitbox,
8877 content_origin: gpui::Point<Pixels>,
8878 scrollbars_layout: Option<EditorScrollbars>,
8879 minimap: Option<MinimapLayout>,
8880 mode: EditorMode,
8881 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
8882 indent_guides: Option<Vec<IndentGuideLayout>>,
8883 visible_display_row_range: Range<DisplayRow>,
8884 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
8885 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
8886 line_elements: SmallVec<[AnyElement; 1]>,
8887 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
8888 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
8889 blamed_display_rows: Option<Vec<AnyElement>>,
8890 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
8891 inline_blame: Option<AnyElement>,
8892 inline_code_actions: Option<AnyElement>,
8893 blocks: Vec<BlockLayout>,
8894 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
8895 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
8896 redacted_ranges: Vec<Range<DisplayPoint>>,
8897 cursors: Vec<(DisplayPoint, Hsla)>,
8898 visible_cursors: Vec<CursorLayout>,
8899 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
8900 test_indicators: Vec<AnyElement>,
8901 breakpoints: Vec<AnyElement>,
8902 crease_toggles: Vec<Option<AnyElement>>,
8903 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
8904 diff_hunk_controls: Vec<AnyElement>,
8905 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
8906 inline_completion_popover: Option<AnyElement>,
8907 mouse_context_menu: Option<AnyElement>,
8908 tab_invisible: ShapedLine,
8909 space_invisible: ShapedLine,
8910 sticky_buffer_header: Option<AnyElement>,
8911}
8912
8913impl EditorLayout {
8914 fn line_end_overshoot(&self) -> Pixels {
8915 0.15 * self.position_map.line_height
8916 }
8917}
8918
8919struct LineNumberLayout {
8920 shaped_line: ShapedLine,
8921 hitbox: Option<Hitbox>,
8922}
8923
8924struct ColoredRange<T> {
8925 start: T,
8926 end: T,
8927 color: Hsla,
8928}
8929
8930impl Along for ScrollbarAxes {
8931 type Unit = bool;
8932
8933 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
8934 match axis {
8935 ScrollbarAxis::Horizontal => self.horizontal,
8936 ScrollbarAxis::Vertical => self.vertical,
8937 }
8938 }
8939
8940 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
8941 match axis {
8942 ScrollbarAxis::Horizontal => ScrollbarAxes {
8943 horizontal: f(self.horizontal),
8944 vertical: self.vertical,
8945 },
8946 ScrollbarAxis::Vertical => ScrollbarAxes {
8947 horizontal: self.horizontal,
8948 vertical: f(self.vertical),
8949 },
8950 }
8951 }
8952}
8953
8954#[derive(Clone)]
8955struct EditorScrollbars {
8956 pub vertical: Option<ScrollbarLayout>,
8957 pub horizontal: Option<ScrollbarLayout>,
8958 pub visible: bool,
8959}
8960
8961impl EditorScrollbars {
8962 pub fn from_scrollbar_axes(
8963 settings_visibility: ScrollbarAxes,
8964 layout_information: &ScrollbarLayoutInformation,
8965 content_offset: gpui::Point<Pixels>,
8966 scroll_position: gpui::Point<f32>,
8967 scrollbar_width: Pixels,
8968 right_margin: Pixels,
8969 editor_width: Pixels,
8970 show_scrollbars: bool,
8971 scrollbar_state: Option<&ActiveScrollbarState>,
8972 window: &mut Window,
8973 ) -> Self {
8974 let ScrollbarLayoutInformation {
8975 editor_bounds,
8976 scroll_range,
8977 glyph_grid_cell,
8978 } = layout_information;
8979
8980 let viewport_size = size(editor_width, editor_bounds.size.height);
8981
8982 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
8983 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
8984 Corner::BottomLeft,
8985 editor_bounds.bottom_left(),
8986 size(
8987 // The horizontal viewport size differs from the space available for the
8988 // horizontal scrollbar, so we have to manually stich it together here.
8989 editor_bounds.size.width - right_margin,
8990 scrollbar_width,
8991 ),
8992 ),
8993 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
8994 Corner::TopRight,
8995 editor_bounds.top_right(),
8996 size(scrollbar_width, viewport_size.height),
8997 ),
8998 };
8999
9000 let mut create_scrollbar_layout = |axis| {
9001 settings_visibility
9002 .along(axis)
9003 .then(|| {
9004 (
9005 viewport_size.along(axis) - content_offset.along(axis),
9006 scroll_range.along(axis),
9007 )
9008 })
9009 .filter(|(viewport_size, scroll_range)| {
9010 // The scrollbar should only be rendered if the content does
9011 // not entirely fit into the editor
9012 // However, this only applies to the horizontal scrollbar, as information about the
9013 // vertical scrollbar layout is always needed for scrollbar diagnostics.
9014 axis != ScrollbarAxis::Horizontal || viewport_size < scroll_range
9015 })
9016 .map(|(viewport_size, scroll_range)| {
9017 ScrollbarLayout::new(
9018 window.insert_hitbox(scrollbar_bounds_for(axis), HitboxBehavior::Normal),
9019 viewport_size,
9020 scroll_range,
9021 glyph_grid_cell.along(axis),
9022 content_offset.along(axis),
9023 scroll_position.along(axis),
9024 show_scrollbars,
9025 axis,
9026 )
9027 .with_thumb_state(
9028 scrollbar_state.and_then(|state| state.thumb_state_for_axis(axis)),
9029 )
9030 })
9031 };
9032
9033 Self {
9034 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
9035 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
9036 visible: show_scrollbars,
9037 }
9038 }
9039
9040 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
9041 [
9042 (&self.vertical, ScrollbarAxis::Vertical),
9043 (&self.horizontal, ScrollbarAxis::Horizontal),
9044 ]
9045 .into_iter()
9046 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
9047 }
9048
9049 /// Returns the currently hovered scrollbar axis, if any.
9050 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
9051 self.iter_scrollbars()
9052 .find(|s| s.0.hitbox.is_hovered(window))
9053 }
9054}
9055
9056#[derive(Clone)]
9057struct ScrollbarLayout {
9058 hitbox: Hitbox,
9059 visible_range: Range<f32>,
9060 text_unit_size: Pixels,
9061 thumb_bounds: Option<Bounds<Pixels>>,
9062 thumb_state: ScrollbarThumbState,
9063}
9064
9065impl ScrollbarLayout {
9066 const BORDER_WIDTH: Pixels = px(1.0);
9067 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
9068 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
9069 const MIN_THUMB_SIZE: Pixels = px(25.0);
9070
9071 fn new(
9072 scrollbar_track_hitbox: Hitbox,
9073 viewport_size: Pixels,
9074 scroll_range: Pixels,
9075 glyph_space: Pixels,
9076 content_offset: Pixels,
9077 scroll_position: f32,
9078 show_thumb: bool,
9079 axis: ScrollbarAxis,
9080 ) -> Self {
9081 let track_bounds = scrollbar_track_hitbox.bounds;
9082 // The length of the track available to the scrollbar thumb. We deliberately
9083 // exclude the content size here so that the thumb aligns with the content.
9084 let track_length = track_bounds.size.along(axis) - content_offset;
9085
9086 Self::new_with_hitbox_and_track_length(
9087 scrollbar_track_hitbox,
9088 track_length,
9089 viewport_size,
9090 scroll_range,
9091 glyph_space,
9092 content_offset,
9093 scroll_position,
9094 show_thumb,
9095 axis,
9096 )
9097 }
9098
9099 fn for_minimap(
9100 minimap_track_hitbox: Hitbox,
9101 visible_lines: f32,
9102 total_editor_lines: f32,
9103 minimap_line_height: Pixels,
9104 scroll_position: f32,
9105 minimap_scroll_top: f32,
9106 show_thumb: bool,
9107 ) -> Self {
9108 // The scrollbar thumb size is calculated as
9109 // (visible_content/total_content) × scrollbar_track_length.
9110 //
9111 // For the minimap's thumb layout, we leverage this by setting the
9112 // scrollbar track length to the entire document size (using minimap line
9113 // height). This creates a thumb that exactly represents the editor
9114 // viewport scaled to minimap proportions.
9115 //
9116 // We adjust the thumb position relative to `minimap_scroll_top` to
9117 // accommodate for the deliberately oversized track.
9118 //
9119 // This approach ensures that the minimap thumb accurately reflects the
9120 // editor's current scroll position whilst nicely synchronizing the minimap
9121 // thumb and scrollbar thumb.
9122 let scroll_range = total_editor_lines * minimap_line_height;
9123 let viewport_size = visible_lines * minimap_line_height;
9124
9125 let track_top_offset = -minimap_scroll_top * minimap_line_height;
9126
9127 Self::new_with_hitbox_and_track_length(
9128 minimap_track_hitbox,
9129 scroll_range,
9130 viewport_size,
9131 scroll_range,
9132 minimap_line_height,
9133 track_top_offset,
9134 scroll_position,
9135 show_thumb,
9136 ScrollbarAxis::Vertical,
9137 )
9138 }
9139
9140 fn new_with_hitbox_and_track_length(
9141 scrollbar_track_hitbox: Hitbox,
9142 track_length: Pixels,
9143 viewport_size: Pixels,
9144 scroll_range: Pixels,
9145 glyph_space: Pixels,
9146 content_offset: Pixels,
9147 scroll_position: f32,
9148 show_thumb: bool,
9149 axis: ScrollbarAxis,
9150 ) -> Self {
9151 let text_units_per_page = viewport_size / glyph_space;
9152 let visible_range = scroll_position..scroll_position + text_units_per_page;
9153 let total_text_units = scroll_range / glyph_space;
9154
9155 let thumb_percentage = text_units_per_page / total_text_units;
9156 let thumb_size = (track_length * thumb_percentage)
9157 .max(ScrollbarLayout::MIN_THUMB_SIZE)
9158 .min(track_length);
9159
9160 let text_unit_divisor = (total_text_units - text_units_per_page).max(0.);
9161
9162 let content_larger_than_viewport = text_unit_divisor > 0.;
9163
9164 let text_unit_size = if content_larger_than_viewport {
9165 (track_length - thumb_size) / text_unit_divisor
9166 } else {
9167 glyph_space
9168 };
9169
9170 let thumb_bounds = (show_thumb && content_larger_than_viewport).then(|| {
9171 Self::thumb_bounds(
9172 &scrollbar_track_hitbox,
9173 content_offset,
9174 visible_range.start,
9175 text_unit_size,
9176 thumb_size,
9177 axis,
9178 )
9179 });
9180
9181 ScrollbarLayout {
9182 hitbox: scrollbar_track_hitbox,
9183 visible_range,
9184 text_unit_size,
9185 thumb_bounds,
9186 thumb_state: Default::default(),
9187 }
9188 }
9189
9190 fn with_thumb_state(self, thumb_state: Option<ScrollbarThumbState>) -> Self {
9191 if let Some(thumb_state) = thumb_state {
9192 Self {
9193 thumb_state,
9194 ..self
9195 }
9196 } else {
9197 self
9198 }
9199 }
9200
9201 fn thumb_bounds(
9202 scrollbar_track: &Hitbox,
9203 content_offset: Pixels,
9204 visible_range_start: f32,
9205 text_unit_size: Pixels,
9206 thumb_size: Pixels,
9207 axis: ScrollbarAxis,
9208 ) -> Bounds<Pixels> {
9209 let thumb_origin = scrollbar_track.origin.apply_along(axis, |origin| {
9210 origin + content_offset + visible_range_start * text_unit_size
9211 });
9212 Bounds::new(
9213 thumb_origin,
9214 scrollbar_track.size.apply_along(axis, |_| thumb_size),
9215 )
9216 }
9217
9218 fn thumb_hovered(&self, position: &gpui::Point<Pixels>) -> bool {
9219 self.thumb_bounds
9220 .is_some_and(|bounds| bounds.contains(position))
9221 }
9222
9223 fn marker_quads_for_ranges(
9224 &self,
9225 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
9226 column: Option<usize>,
9227 ) -> Vec<PaintQuad> {
9228 struct MinMax {
9229 min: Pixels,
9230 max: Pixels,
9231 }
9232 let (x_range, height_limit) = if let Some(column) = column {
9233 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
9234 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
9235 let end = start + column_width;
9236 (
9237 Range { start, end },
9238 MinMax {
9239 min: Self::MIN_MARKER_HEIGHT,
9240 max: px(f32::MAX),
9241 },
9242 )
9243 } else {
9244 (
9245 Range {
9246 start: Self::BORDER_WIDTH,
9247 end: self.hitbox.size.width,
9248 },
9249 MinMax {
9250 min: Self::LINE_MARKER_HEIGHT,
9251 max: Self::LINE_MARKER_HEIGHT,
9252 },
9253 )
9254 };
9255
9256 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
9257 let mut pixel_ranges = row_ranges
9258 .into_iter()
9259 .map(|range| {
9260 let start_y = row_to_y(range.start);
9261 let end_y = row_to_y(range.end)
9262 + self
9263 .text_unit_size
9264 .max(height_limit.min)
9265 .min(height_limit.max);
9266 ColoredRange {
9267 start: start_y,
9268 end: end_y,
9269 color: range.color,
9270 }
9271 })
9272 .peekable();
9273
9274 let mut quads = Vec::new();
9275 while let Some(mut pixel_range) = pixel_ranges.next() {
9276 while let Some(next_pixel_range) = pixel_ranges.peek() {
9277 if pixel_range.end >= next_pixel_range.start - px(1.0)
9278 && pixel_range.color == next_pixel_range.color
9279 {
9280 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
9281 pixel_ranges.next();
9282 } else {
9283 break;
9284 }
9285 }
9286
9287 let bounds = Bounds::from_corners(
9288 point(x_range.start, pixel_range.start),
9289 point(x_range.end, pixel_range.end),
9290 );
9291 quads.push(quad(
9292 bounds,
9293 Corners::default(),
9294 pixel_range.color,
9295 Edges::default(),
9296 Hsla::transparent_black(),
9297 BorderStyle::default(),
9298 ));
9299 }
9300
9301 quads
9302 }
9303}
9304
9305struct MinimapLayout {
9306 pub minimap: AnyElement,
9307 pub thumb_layout: ScrollbarLayout,
9308 pub minimap_scroll_top: f32,
9309 pub minimap_line_height: Pixels,
9310 pub thumb_border_style: MinimapThumbBorder,
9311 pub max_scroll_top: f32,
9312}
9313
9314impl MinimapLayout {
9315 const MINIMAP_WIDTH: Pixels = px(100.);
9316 /// Calculates the scroll top offset the minimap editor has to have based on the
9317 /// current scroll progress.
9318 fn calculate_minimap_top_offset(
9319 document_lines: f32,
9320 visible_editor_lines: f32,
9321 visible_minimap_lines: f32,
9322 scroll_position: f32,
9323 ) -> f32 {
9324 let non_visible_document_lines = (document_lines - visible_editor_lines).max(0.);
9325 if non_visible_document_lines == 0. {
9326 0.
9327 } else {
9328 let scroll_percentage = (scroll_position / non_visible_document_lines).clamp(0., 1.);
9329 scroll_percentage * (document_lines - visible_minimap_lines).max(0.)
9330 }
9331 }
9332}
9333
9334struct CreaseTrailerLayout {
9335 element: AnyElement,
9336 bounds: Bounds<Pixels>,
9337}
9338
9339pub(crate) struct PositionMap {
9340 pub size: Size<Pixels>,
9341 pub line_height: Pixels,
9342 pub scroll_pixel_position: gpui::Point<Pixels>,
9343 pub scroll_max: gpui::Point<f32>,
9344 pub em_width: Pixels,
9345 pub em_advance: Pixels,
9346 pub visible_row_range: Range<DisplayRow>,
9347 pub line_layouts: Vec<LineWithInvisibles>,
9348 pub snapshot: EditorSnapshot,
9349 pub text_hitbox: Hitbox,
9350 pub gutter_hitbox: Hitbox,
9351}
9352
9353#[derive(Debug, Copy, Clone)]
9354pub struct PointForPosition {
9355 pub previous_valid: DisplayPoint,
9356 pub next_valid: DisplayPoint,
9357 pub exact_unclipped: DisplayPoint,
9358 pub column_overshoot_after_line_end: u32,
9359}
9360
9361impl PointForPosition {
9362 pub fn as_valid(&self) -> Option<DisplayPoint> {
9363 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
9364 Some(self.previous_valid)
9365 } else {
9366 None
9367 }
9368 }
9369
9370 pub fn intersects_selection(&self, selection: &Selection<DisplayPoint>) -> bool {
9371 let Some(valid_point) = self.as_valid() else {
9372 return false;
9373 };
9374 let range = selection.range();
9375
9376 let candidate_row = valid_point.row();
9377 let candidate_col = valid_point.column();
9378
9379 let start_row = range.start.row();
9380 let start_col = range.start.column();
9381 let end_row = range.end.row();
9382 let end_col = range.end.column();
9383
9384 if candidate_row < start_row || candidate_row > end_row {
9385 false
9386 } else if start_row == end_row {
9387 candidate_col >= start_col && candidate_col < end_col
9388 } else {
9389 if candidate_row == start_row {
9390 candidate_col >= start_col
9391 } else if candidate_row == end_row {
9392 candidate_col < end_col
9393 } else {
9394 true
9395 }
9396 }
9397 }
9398}
9399
9400impl PositionMap {
9401 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
9402 let text_bounds = self.text_hitbox.bounds;
9403 let scroll_position = self.snapshot.scroll_position();
9404 let position = position - text_bounds.origin;
9405 let y = position.y.max(px(0.)).min(self.size.height);
9406 let x = position.x + (scroll_position.x * self.em_width);
9407 let row = ((y / self.line_height) + scroll_position.y) as u32;
9408
9409 let (column, x_overshoot_after_line_end) = if let Some(line) = self
9410 .line_layouts
9411 .get(row as usize - scroll_position.y as usize)
9412 {
9413 if let Some(ix) = line.index_for_x(x) {
9414 (ix as u32, px(0.))
9415 } else {
9416 (line.len as u32, px(0.).max(x - line.width))
9417 }
9418 } else {
9419 (0, x)
9420 };
9421
9422 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
9423 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
9424 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
9425
9426 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
9427 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
9428 PointForPosition {
9429 previous_valid,
9430 next_valid,
9431 exact_unclipped,
9432 column_overshoot_after_line_end,
9433 }
9434 }
9435}
9436
9437struct BlockLayout {
9438 id: BlockId,
9439 x_offset: Pixels,
9440 row: Option<DisplayRow>,
9441 element: AnyElement,
9442 available_space: Size<AvailableSpace>,
9443 style: BlockStyle,
9444 overlaps_gutter: bool,
9445 is_buffer_header: bool,
9446}
9447
9448pub fn layout_line(
9449 row: DisplayRow,
9450 snapshot: &EditorSnapshot,
9451 style: &EditorStyle,
9452 text_width: Pixels,
9453 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
9454 window: &mut Window,
9455 cx: &mut App,
9456) -> LineWithInvisibles {
9457 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
9458 LineWithInvisibles::from_chunks(
9459 chunks,
9460 &style,
9461 MAX_LINE_LEN,
9462 1,
9463 &snapshot.mode,
9464 text_width,
9465 is_row_soft_wrapped,
9466 window,
9467 cx,
9468 )
9469 .pop()
9470 .unwrap()
9471}
9472
9473#[derive(Debug)]
9474pub struct IndentGuideLayout {
9475 origin: gpui::Point<Pixels>,
9476 length: Pixels,
9477 single_indent_width: Pixels,
9478 depth: u32,
9479 active: bool,
9480 settings: IndentGuideSettings,
9481}
9482
9483pub struct CursorLayout {
9484 origin: gpui::Point<Pixels>,
9485 block_width: Pixels,
9486 line_height: Pixels,
9487 color: Hsla,
9488 shape: CursorShape,
9489 block_text: Option<ShapedLine>,
9490 cursor_name: Option<AnyElement>,
9491}
9492
9493#[derive(Debug)]
9494pub struct CursorName {
9495 string: SharedString,
9496 color: Hsla,
9497 is_top_row: bool,
9498}
9499
9500impl CursorLayout {
9501 pub fn new(
9502 origin: gpui::Point<Pixels>,
9503 block_width: Pixels,
9504 line_height: Pixels,
9505 color: Hsla,
9506 shape: CursorShape,
9507 block_text: Option<ShapedLine>,
9508 ) -> CursorLayout {
9509 CursorLayout {
9510 origin,
9511 block_width,
9512 line_height,
9513 color,
9514 shape,
9515 block_text,
9516 cursor_name: None,
9517 }
9518 }
9519
9520 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
9521 Bounds {
9522 origin: self.origin + origin,
9523 size: size(self.block_width, self.line_height),
9524 }
9525 }
9526
9527 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
9528 match self.shape {
9529 CursorShape::Bar => Bounds {
9530 origin: self.origin + origin,
9531 size: size(px(2.0), self.line_height),
9532 },
9533 CursorShape::Block | CursorShape::Hollow => Bounds {
9534 origin: self.origin + origin,
9535 size: size(self.block_width, self.line_height),
9536 },
9537 CursorShape::Underline => Bounds {
9538 origin: self.origin
9539 + origin
9540 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
9541 size: size(self.block_width, px(2.0)),
9542 },
9543 }
9544 }
9545
9546 pub fn layout(
9547 &mut self,
9548 origin: gpui::Point<Pixels>,
9549 cursor_name: Option<CursorName>,
9550 window: &mut Window,
9551 cx: &mut App,
9552 ) {
9553 if let Some(cursor_name) = cursor_name {
9554 let bounds = self.bounds(origin);
9555 let text_size = self.line_height / 1.5;
9556
9557 let name_origin = if cursor_name.is_top_row {
9558 point(bounds.right() - px(1.), bounds.top())
9559 } else {
9560 match self.shape {
9561 CursorShape::Bar => point(
9562 bounds.right() - px(2.),
9563 bounds.top() - text_size / 2. - px(1.),
9564 ),
9565 _ => point(
9566 bounds.right() - px(1.),
9567 bounds.top() - text_size / 2. - px(1.),
9568 ),
9569 }
9570 };
9571 let mut name_element = div()
9572 .bg(self.color)
9573 .text_size(text_size)
9574 .px_0p5()
9575 .line_height(text_size + px(2.))
9576 .text_color(cursor_name.color)
9577 .child(cursor_name.string.clone())
9578 .into_any_element();
9579
9580 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
9581
9582 self.cursor_name = Some(name_element);
9583 }
9584 }
9585
9586 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
9587 let bounds = self.bounds(origin);
9588
9589 //Draw background or border quad
9590 let cursor = if matches!(self.shape, CursorShape::Hollow) {
9591 outline(bounds, self.color, BorderStyle::Solid)
9592 } else {
9593 fill(bounds, self.color)
9594 };
9595
9596 if let Some(name) = &mut self.cursor_name {
9597 name.paint(window, cx);
9598 }
9599
9600 window.paint_quad(cursor);
9601
9602 if let Some(block_text) = &self.block_text {
9603 block_text
9604 .paint(self.origin + origin, self.line_height, window, cx)
9605 .log_err();
9606 }
9607 }
9608
9609 pub fn shape(&self) -> CursorShape {
9610 self.shape
9611 }
9612}
9613
9614#[derive(Debug)]
9615pub struct HighlightedRange {
9616 pub start_y: Pixels,
9617 pub line_height: Pixels,
9618 pub lines: Vec<HighlightedRangeLine>,
9619 pub color: Hsla,
9620 pub corner_radius: Pixels,
9621}
9622
9623#[derive(Debug)]
9624pub struct HighlightedRangeLine {
9625 pub start_x: Pixels,
9626 pub end_x: Pixels,
9627}
9628
9629impl HighlightedRange {
9630 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
9631 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
9632 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
9633 self.paint_lines(
9634 self.start_y + self.line_height,
9635 &self.lines[1..],
9636 bounds,
9637 window,
9638 );
9639 } else {
9640 self.paint_lines(self.start_y, &self.lines, bounds, window);
9641 }
9642 }
9643
9644 fn paint_lines(
9645 &self,
9646 start_y: Pixels,
9647 lines: &[HighlightedRangeLine],
9648 _bounds: Bounds<Pixels>,
9649 window: &mut Window,
9650 ) {
9651 if lines.is_empty() {
9652 return;
9653 }
9654
9655 let first_line = lines.first().unwrap();
9656 let last_line = lines.last().unwrap();
9657
9658 let first_top_left = point(first_line.start_x, start_y);
9659 let first_top_right = point(first_line.end_x, start_y);
9660
9661 let curve_height = point(Pixels::ZERO, self.corner_radius);
9662 let curve_width = |start_x: Pixels, end_x: Pixels| {
9663 let max = (end_x - start_x) / 2.;
9664 let width = if max < self.corner_radius {
9665 max
9666 } else {
9667 self.corner_radius
9668 };
9669
9670 point(width, Pixels::ZERO)
9671 };
9672
9673 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
9674 let mut builder = gpui::PathBuilder::fill();
9675 builder.move_to(first_top_right - top_curve_width);
9676 builder.curve_to(first_top_right + curve_height, first_top_right);
9677
9678 let mut iter = lines.iter().enumerate().peekable();
9679 while let Some((ix, line)) = iter.next() {
9680 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
9681
9682 if let Some((_, next_line)) = iter.peek() {
9683 let next_top_right = point(next_line.end_x, bottom_right.y);
9684
9685 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
9686 Ordering::Equal => {
9687 builder.line_to(bottom_right);
9688 }
9689 Ordering::Less => {
9690 let curve_width = curve_width(next_top_right.x, bottom_right.x);
9691 builder.line_to(bottom_right - curve_height);
9692 if self.corner_radius > Pixels::ZERO {
9693 builder.curve_to(bottom_right - curve_width, bottom_right);
9694 }
9695 builder.line_to(next_top_right + curve_width);
9696 if self.corner_radius > Pixels::ZERO {
9697 builder.curve_to(next_top_right + curve_height, next_top_right);
9698 }
9699 }
9700 Ordering::Greater => {
9701 let curve_width = curve_width(bottom_right.x, next_top_right.x);
9702 builder.line_to(bottom_right - curve_height);
9703 if self.corner_radius > Pixels::ZERO {
9704 builder.curve_to(bottom_right + curve_width, bottom_right);
9705 }
9706 builder.line_to(next_top_right - curve_width);
9707 if self.corner_radius > Pixels::ZERO {
9708 builder.curve_to(next_top_right + curve_height, next_top_right);
9709 }
9710 }
9711 }
9712 } else {
9713 let curve_width = curve_width(line.start_x, line.end_x);
9714 builder.line_to(bottom_right - curve_height);
9715 if self.corner_radius > Pixels::ZERO {
9716 builder.curve_to(bottom_right - curve_width, bottom_right);
9717 }
9718
9719 let bottom_left = point(line.start_x, bottom_right.y);
9720 builder.line_to(bottom_left + curve_width);
9721 if self.corner_radius > Pixels::ZERO {
9722 builder.curve_to(bottom_left - curve_height, bottom_left);
9723 }
9724 }
9725 }
9726
9727 if first_line.start_x > last_line.start_x {
9728 let curve_width = curve_width(last_line.start_x, first_line.start_x);
9729 let second_top_left = point(last_line.start_x, start_y + self.line_height);
9730 builder.line_to(second_top_left + curve_height);
9731 if self.corner_radius > Pixels::ZERO {
9732 builder.curve_to(second_top_left + curve_width, second_top_left);
9733 }
9734 let first_bottom_left = point(first_line.start_x, second_top_left.y);
9735 builder.line_to(first_bottom_left - curve_width);
9736 if self.corner_radius > Pixels::ZERO {
9737 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
9738 }
9739 }
9740
9741 builder.line_to(first_top_left + curve_height);
9742 if self.corner_radius > Pixels::ZERO {
9743 builder.curve_to(first_top_left + top_curve_width, first_top_left);
9744 }
9745 builder.line_to(first_top_right - top_curve_width);
9746
9747 if let Ok(path) = builder.build() {
9748 window.paint_path(path, self.color);
9749 }
9750 }
9751}
9752
9753enum CursorPopoverType {
9754 CodeContextMenu,
9755 EditPrediction,
9756}
9757
9758pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
9759 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
9760}
9761
9762fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
9763 (delta.pow(1.2) / 300.0).into()
9764}
9765
9766pub fn register_action<T: Action>(
9767 editor: &Entity<Editor>,
9768 window: &mut Window,
9769 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
9770) {
9771 let editor = editor.clone();
9772 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
9773 let action = action.downcast_ref().unwrap();
9774 if phase == DispatchPhase::Bubble {
9775 editor.update(cx, |editor, cx| {
9776 listener(editor, action, window, cx);
9777 })
9778 }
9779 })
9780}
9781
9782fn compute_auto_height_layout(
9783 editor: &mut Editor,
9784 max_lines: usize,
9785 max_line_number_width: Pixels,
9786 known_dimensions: Size<Option<Pixels>>,
9787 available_width: AvailableSpace,
9788 window: &mut Window,
9789 cx: &mut Context<Editor>,
9790) -> Option<Size<Pixels>> {
9791 let width = known_dimensions.width.or({
9792 if let AvailableSpace::Definite(available_width) = available_width {
9793 Some(available_width)
9794 } else {
9795 None
9796 }
9797 })?;
9798 if let Some(height) = known_dimensions.height {
9799 return Some(size(width, height));
9800 }
9801
9802 let style = editor.style.as_ref().unwrap();
9803 let font_id = window.text_system().resolve_font(&style.text.font());
9804 let font_size = style.text.font_size.to_pixels(window.rem_size());
9805 let line_height = style.text.line_height_in_pixels(window.rem_size());
9806 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
9807
9808 let mut snapshot = editor.snapshot(window, cx);
9809 let gutter_dimensions = snapshot
9810 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
9811 .or_else(|| {
9812 editor
9813 .offset_content
9814 .then(|| GutterDimensions::default_with_margin(font_id, font_size, cx))
9815 })
9816 .unwrap_or_default();
9817
9818 editor.gutter_dimensions = gutter_dimensions;
9819 let text_width = width - gutter_dimensions.width;
9820 let overscroll = size(em_width, px(0.));
9821
9822 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
9823 if !matches!(editor.soft_wrap_mode(cx), SoftWrap::None) {
9824 if editor.set_wrap_width(Some(editor_width), cx) {
9825 snapshot = editor.snapshot(window, cx);
9826 }
9827 }
9828
9829 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
9830 let height = scroll_height
9831 .max(line_height)
9832 .min(line_height * max_lines as f32);
9833
9834 Some(size(width, height))
9835}
9836
9837#[cfg(test)]
9838mod tests {
9839 use super::*;
9840 use crate::{
9841 Editor, MultiBuffer,
9842 display_map::{BlockPlacement, BlockProperties},
9843 editor_tests::{init_test, update_test_language_settings},
9844 };
9845 use gpui::{TestAppContext, VisualTestContext};
9846 use language::language_settings;
9847 use log::info;
9848 use std::num::NonZeroU32;
9849 use util::test::sample_text;
9850
9851 #[gpui::test]
9852 fn test_shape_line_numbers(cx: &mut TestAppContext) {
9853 init_test(cx, |_| {});
9854 let window = cx.add_window(|window, cx| {
9855 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
9856 Editor::new(EditorMode::full(), buffer, None, window, cx)
9857 });
9858
9859 let editor = window.root(cx).unwrap();
9860 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
9861 let line_height = window
9862 .update(cx, |_, window, _| {
9863 style.text.line_height_in_pixels(window.rem_size())
9864 })
9865 .unwrap();
9866 let element = EditorElement::new(&editor, style);
9867 let snapshot = window
9868 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
9869 .unwrap();
9870
9871 let layouts = cx
9872 .update_window(*window, |_, window, cx| {
9873 element.layout_line_numbers(
9874 None,
9875 GutterDimensions {
9876 left_padding: Pixels::ZERO,
9877 right_padding: Pixels::ZERO,
9878 width: px(30.0),
9879 margin: Pixels::ZERO,
9880 git_blame_entries_width: None,
9881 },
9882 line_height,
9883 gpui::Point::default(),
9884 DisplayRow(0)..DisplayRow(6),
9885 &(0..6)
9886 .map(|row| RowInfo {
9887 buffer_row: Some(row),
9888 ..Default::default()
9889 })
9890 .collect::<Vec<_>>(),
9891 &BTreeMap::default(),
9892 Some(DisplayPoint::new(DisplayRow(0), 0)),
9893 &snapshot,
9894 window,
9895 cx,
9896 )
9897 })
9898 .unwrap();
9899 assert_eq!(layouts.len(), 6);
9900
9901 let relative_rows = window
9902 .update(cx, |editor, window, cx| {
9903 let snapshot = editor.snapshot(window, cx);
9904 element.calculate_relative_line_numbers(
9905 &snapshot,
9906 &(DisplayRow(0)..DisplayRow(6)),
9907 Some(DisplayRow(3)),
9908 )
9909 })
9910 .unwrap();
9911 assert_eq!(relative_rows[&DisplayRow(0)], 3);
9912 assert_eq!(relative_rows[&DisplayRow(1)], 2);
9913 assert_eq!(relative_rows[&DisplayRow(2)], 1);
9914 // current line has no relative number
9915 assert_eq!(relative_rows[&DisplayRow(4)], 1);
9916 assert_eq!(relative_rows[&DisplayRow(5)], 2);
9917
9918 // works if cursor is before screen
9919 let relative_rows = window
9920 .update(cx, |editor, window, cx| {
9921 let snapshot = editor.snapshot(window, cx);
9922 element.calculate_relative_line_numbers(
9923 &snapshot,
9924 &(DisplayRow(3)..DisplayRow(6)),
9925 Some(DisplayRow(1)),
9926 )
9927 })
9928 .unwrap();
9929 assert_eq!(relative_rows.len(), 3);
9930 assert_eq!(relative_rows[&DisplayRow(3)], 2);
9931 assert_eq!(relative_rows[&DisplayRow(4)], 3);
9932 assert_eq!(relative_rows[&DisplayRow(5)], 4);
9933
9934 // works if cursor is after screen
9935 let relative_rows = window
9936 .update(cx, |editor, window, cx| {
9937 let snapshot = editor.snapshot(window, cx);
9938 element.calculate_relative_line_numbers(
9939 &snapshot,
9940 &(DisplayRow(0)..DisplayRow(3)),
9941 Some(DisplayRow(6)),
9942 )
9943 })
9944 .unwrap();
9945 assert_eq!(relative_rows.len(), 3);
9946 assert_eq!(relative_rows[&DisplayRow(0)], 5);
9947 assert_eq!(relative_rows[&DisplayRow(1)], 4);
9948 assert_eq!(relative_rows[&DisplayRow(2)], 3);
9949 }
9950
9951 #[gpui::test]
9952 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
9953 init_test(cx, |_| {});
9954
9955 let window = cx.add_window(|window, cx| {
9956 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
9957 Editor::new(EditorMode::full(), buffer, None, window, cx)
9958 });
9959 let cx = &mut VisualTestContext::from_window(*window, cx);
9960 let editor = window.root(cx).unwrap();
9961 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
9962
9963 window
9964 .update(cx, |editor, window, cx| {
9965 editor.cursor_shape = CursorShape::Block;
9966 editor.change_selections(None, window, cx, |s| {
9967 s.select_ranges([
9968 Point::new(0, 0)..Point::new(1, 0),
9969 Point::new(3, 2)..Point::new(3, 3),
9970 Point::new(5, 6)..Point::new(6, 0),
9971 ]);
9972 });
9973 })
9974 .unwrap();
9975
9976 let (_, state) = cx.draw(
9977 point(px(500.), px(500.)),
9978 size(px(500.), px(500.)),
9979 |_, _| EditorElement::new(&editor, style),
9980 );
9981
9982 assert_eq!(state.selections.len(), 1);
9983 let local_selections = &state.selections[0].1;
9984 assert_eq!(local_selections.len(), 3);
9985 // moves cursor back one line
9986 assert_eq!(
9987 local_selections[0].head,
9988 DisplayPoint::new(DisplayRow(0), 6)
9989 );
9990 assert_eq!(
9991 local_selections[0].range,
9992 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
9993 );
9994
9995 // moves cursor back one column
9996 assert_eq!(
9997 local_selections[1].range,
9998 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
9999 );
10000 assert_eq!(
10001 local_selections[1].head,
10002 DisplayPoint::new(DisplayRow(3), 2)
10003 );
10004
10005 // leaves cursor on the max point
10006 assert_eq!(
10007 local_selections[2].range,
10008 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
10009 );
10010 assert_eq!(
10011 local_selections[2].head,
10012 DisplayPoint::new(DisplayRow(6), 0)
10013 );
10014
10015 // active lines does not include 1 (even though the range of the selection does)
10016 assert_eq!(
10017 state.active_rows.keys().cloned().collect::<Vec<_>>(),
10018 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
10019 );
10020 }
10021
10022 #[gpui::test]
10023 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
10024 init_test(cx, |_| {});
10025
10026 let window = cx.add_window(|window, cx| {
10027 let buffer = MultiBuffer::build_simple("", cx);
10028 Editor::new(EditorMode::full(), buffer, None, window, cx)
10029 });
10030 let cx = &mut VisualTestContext::from_window(*window, cx);
10031 let editor = window.root(cx).unwrap();
10032 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10033 window
10034 .update(cx, |editor, window, cx| {
10035 editor.set_placeholder_text("hello", cx);
10036 editor.insert_blocks(
10037 [BlockProperties {
10038 style: BlockStyle::Fixed,
10039 placement: BlockPlacement::Above(Anchor::min()),
10040 height: Some(3),
10041 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
10042 priority: 0,
10043 render_in_minimap: true,
10044 }],
10045 None,
10046 cx,
10047 );
10048
10049 // Blur the editor so that it displays placeholder text.
10050 window.blur();
10051 })
10052 .unwrap();
10053
10054 let (_, state) = cx.draw(
10055 point(px(500.), px(500.)),
10056 size(px(500.), px(500.)),
10057 |_, _| EditorElement::new(&editor, style),
10058 );
10059 assert_eq!(state.position_map.line_layouts.len(), 4);
10060 assert_eq!(state.line_numbers.len(), 1);
10061 assert_eq!(
10062 state
10063 .line_numbers
10064 .get(&MultiBufferRow(0))
10065 .map(|line_number| line_number.shaped_line.text.as_ref()),
10066 Some("1")
10067 );
10068 }
10069
10070 #[gpui::test]
10071 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
10072 const TAB_SIZE: u32 = 4;
10073
10074 let input_text = "\t \t|\t| a b";
10075 let expected_invisibles = vec![
10076 Invisible::Tab {
10077 line_start_offset: 0,
10078 line_end_offset: TAB_SIZE as usize,
10079 },
10080 Invisible::Whitespace {
10081 line_offset: TAB_SIZE as usize,
10082 },
10083 Invisible::Tab {
10084 line_start_offset: TAB_SIZE as usize + 1,
10085 line_end_offset: TAB_SIZE as usize * 2,
10086 },
10087 Invisible::Tab {
10088 line_start_offset: TAB_SIZE as usize * 2 + 1,
10089 line_end_offset: TAB_SIZE as usize * 3,
10090 },
10091 Invisible::Whitespace {
10092 line_offset: TAB_SIZE as usize * 3 + 1,
10093 },
10094 Invisible::Whitespace {
10095 line_offset: TAB_SIZE as usize * 3 + 3,
10096 },
10097 ];
10098 assert_eq!(
10099 expected_invisibles.len(),
10100 input_text
10101 .chars()
10102 .filter(|initial_char| initial_char.is_whitespace())
10103 .count(),
10104 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
10105 );
10106
10107 for show_line_numbers in [true, false] {
10108 init_test(cx, |s| {
10109 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10110 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
10111 });
10112
10113 let actual_invisibles = collect_invisibles_from_new_editor(
10114 cx,
10115 EditorMode::full(),
10116 input_text,
10117 px(500.0),
10118 show_line_numbers,
10119 );
10120
10121 assert_eq!(expected_invisibles, actual_invisibles);
10122 }
10123 }
10124
10125 #[gpui::test]
10126 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
10127 init_test(cx, |s| {
10128 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10129 s.defaults.tab_size = NonZeroU32::new(4);
10130 });
10131
10132 for editor_mode_without_invisibles in [
10133 EditorMode::SingleLine { auto_width: false },
10134 EditorMode::AutoHeight { max_lines: 100 },
10135 ] {
10136 for show_line_numbers in [true, false] {
10137 let invisibles = collect_invisibles_from_new_editor(
10138 cx,
10139 editor_mode_without_invisibles.clone(),
10140 "\t\t\t| | a b",
10141 px(500.0),
10142 show_line_numbers,
10143 );
10144 assert!(
10145 invisibles.is_empty(),
10146 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
10147 );
10148 }
10149 }
10150 }
10151
10152 #[gpui::test]
10153 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
10154 let tab_size = 4;
10155 let input_text = "a\tbcd ".repeat(9);
10156 let repeated_invisibles = [
10157 Invisible::Tab {
10158 line_start_offset: 1,
10159 line_end_offset: tab_size as usize,
10160 },
10161 Invisible::Whitespace {
10162 line_offset: tab_size as usize + 3,
10163 },
10164 Invisible::Whitespace {
10165 line_offset: tab_size as usize + 4,
10166 },
10167 Invisible::Whitespace {
10168 line_offset: tab_size as usize + 5,
10169 },
10170 Invisible::Whitespace {
10171 line_offset: tab_size as usize + 6,
10172 },
10173 Invisible::Whitespace {
10174 line_offset: tab_size as usize + 7,
10175 },
10176 ];
10177 let expected_invisibles = std::iter::once(repeated_invisibles)
10178 .cycle()
10179 .take(9)
10180 .flatten()
10181 .collect::<Vec<_>>();
10182 assert_eq!(
10183 expected_invisibles.len(),
10184 input_text
10185 .chars()
10186 .filter(|initial_char| initial_char.is_whitespace())
10187 .count(),
10188 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
10189 );
10190 info!("Expected invisibles: {expected_invisibles:?}");
10191
10192 init_test(cx, |_| {});
10193
10194 // Put the same string with repeating whitespace pattern into editors of various size,
10195 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
10196 let resize_step = 10.0;
10197 let mut editor_width = 200.0;
10198 while editor_width <= 1000.0 {
10199 for show_line_numbers in [true, false] {
10200 update_test_language_settings(cx, |s| {
10201 s.defaults.tab_size = NonZeroU32::new(tab_size);
10202 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10203 s.defaults.preferred_line_length = Some(editor_width as u32);
10204 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
10205 });
10206
10207 let actual_invisibles = collect_invisibles_from_new_editor(
10208 cx,
10209 EditorMode::full(),
10210 &input_text,
10211 px(editor_width),
10212 show_line_numbers,
10213 );
10214
10215 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
10216 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
10217 let mut i = 0;
10218 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
10219 i = actual_index;
10220 match expected_invisibles.get(i) {
10221 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
10222 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
10223 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
10224 _ => {
10225 panic!(
10226 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
10227 )
10228 }
10229 },
10230 None => {
10231 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
10232 }
10233 }
10234 }
10235 let missing_expected_invisibles = &expected_invisibles[i + 1..];
10236 assert!(
10237 missing_expected_invisibles.is_empty(),
10238 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
10239 );
10240
10241 editor_width += resize_step;
10242 }
10243 }
10244 }
10245
10246 fn collect_invisibles_from_new_editor(
10247 cx: &mut TestAppContext,
10248 editor_mode: EditorMode,
10249 input_text: &str,
10250 editor_width: Pixels,
10251 show_line_numbers: bool,
10252 ) -> Vec<Invisible> {
10253 info!(
10254 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
10255 editor_width.0
10256 );
10257 let window = cx.add_window(|window, cx| {
10258 let buffer = MultiBuffer::build_simple(input_text, cx);
10259 Editor::new(editor_mode, buffer, None, window, cx)
10260 });
10261 let cx = &mut VisualTestContext::from_window(*window, cx);
10262 let editor = window.root(cx).unwrap();
10263
10264 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10265 window
10266 .update(cx, |editor, _, cx| {
10267 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
10268 editor.set_wrap_width(Some(editor_width), cx);
10269 editor.set_show_line_numbers(show_line_numbers, cx);
10270 })
10271 .unwrap();
10272 let (_, state) = cx.draw(
10273 point(px(500.), px(500.)),
10274 size(px(500.), px(500.)),
10275 |_, _| EditorElement::new(&editor, style),
10276 );
10277 state
10278 .position_map
10279 .line_layouts
10280 .iter()
10281 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
10282 .cloned()
10283 .collect()
10284 }
10285}