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