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