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