1use crate::{
2 ActiveDiagnostic, BlockId, CURSORS_VISIBLE_FOR, ChunkRendererContext, ChunkReplacement,
3 CodeActionSource, ColumnarMode, ConflictsOurs, ConflictsOursMarker, ConflictsOuter,
4 ConflictsTheirs, ConflictsTheirsMarker, ContextMenuPlacement, CursorShape, CustomBlockId,
5 DisplayDiffHunk, DisplayPoint, DisplayRow, DocumentHighlightRead, DocumentHighlightWrite,
6 EditDisplayMode, EditPrediction, Editor, EditorMode, EditorSettings, EditorSnapshot,
7 EditorStyle, FILE_HEADER_HEIGHT, FocusedBlock, GutterDimensions, HalfPageDown, HalfPageUp,
8 HandleInput, HoveredCursor, InlayHintRefreshReason, JumpData, LineDown, LineHighlight, LineUp,
9 MAX_LINE_LEN, MINIMAP_FONT_SIZE, MULTI_BUFFER_EXCERPT_HEADER_HEIGHT, OpenExcerpts, PageDown,
10 PageUp, PhantomBreakpointIndicator, Point, RowExt, RowRangeExt, SelectPhase,
11 SelectedTextHighlight, Selection, SelectionDragState, SoftWrap, StickyHeaderExcerpt, ToPoint,
12 ToggleFold, ToggleFoldAll,
13 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
14 display_map::{
15 Block, BlockContext, BlockStyle, ChunkRendererId, DisplaySnapshot, EditorMargins,
16 HighlightKey, HighlightedChunk, ToDisplayPoint,
17 },
18 editor_settings::{
19 CurrentLineHighlight, DocumentColorsRenderMode, DoubleClickInMultibuffer, Minimap,
20 MinimapThumb, MinimapThumbBorder, ScrollBeyondLastLine, ScrollbarAxes,
21 ScrollbarDiagnostics, 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 file_icons::FileIcons;
36use git::{
37 Oid,
38 blame::{BlameEntry, ParsedCommitMessage},
39 status::FileStatus,
40};
41use gpui::{
42 Action, Along, AnyElement, App, AppContext, AvailableSpace, Axis as ScrollbarAxis, BorderStyle,
43 Bounds, ClickEvent, ClipboardItem, ContentMask, Context, Corner, Corners, CursorStyle,
44 DispatchPhase, Edges, Element, ElementInputHandler, Entity, Focusable as _, FontId,
45 GlobalElementId, Hitbox, HitboxBehavior, Hsla, InteractiveElement, IntoElement, IsZero,
46 Keystroke, Length, ModifiersChangedEvent, MouseButton, MouseClickEvent, MouseDownEvent,
47 MouseMoveEvent, MouseUpEvent, PaintQuad, ParentElement, Pixels, ScrollDelta, ScrollHandle,
48 ScrollWheelEvent, ShapedLine, SharedString, Size, StatefulInteractiveElement, Style, Styled,
49 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 Entry, 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, Instant},
80};
81use sum_tree::Bias;
82use text::{BufferId, SelectionGoal};
83use theme::{ActiveTheme, Appearance, BufferLineHeight, PlayerColor};
84use ui::{
85 ButtonLike, ContextMenu, KeyBinding, POPOVER_Y_PADDING, Tooltip, h_flex, prelude::*,
86 right_click_menu,
87};
88use unicode_segmentation::UnicodeSegmentation;
89use util::post_inc;
90use util::{RangeExt, ResultExt, debug_panic};
91use workspace::{
92 CollaboratorId, OpenInTerminal, OpenTerminal, RevealInProjectPanel, Workspace, item::Item,
93 notifications::NotifyTaskExt,
94};
95
96/// Determines what kinds of highlights should be applied to a lines background.
97#[derive(Clone, Copy, Default)]
98struct LineHighlightSpec {
99 selection: bool,
100 breakpoint: bool,
101 _active_stack_frame: bool,
102}
103
104#[derive(Debug)]
105struct SelectionLayout {
106 head: DisplayPoint,
107 cursor_shape: CursorShape,
108 is_newest: bool,
109 is_local: bool,
110 range: Range<DisplayPoint>,
111 active_rows: Range<DisplayRow>,
112 user_name: Option<SharedString>,
113}
114
115struct InlineBlameLayout {
116 element: AnyElement,
117 bounds: Bounds<Pixels>,
118 entry: BlameEntry,
119}
120
121impl SelectionLayout {
122 fn new<T: ToPoint + ToDisplayPoint + Clone>(
123 selection: Selection<T>,
124 line_mode: bool,
125 cursor_shape: CursorShape,
126 map: &DisplaySnapshot,
127 is_newest: bool,
128 is_local: bool,
129 user_name: Option<SharedString>,
130 ) -> Self {
131 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
132 let display_selection = point_selection.map(|p| p.to_display_point(map));
133 let mut range = display_selection.range();
134 let mut head = display_selection.head();
135 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
136 ..map.next_line_boundary(point_selection.end).1.row();
137
138 // vim visual line mode
139 if line_mode {
140 let point_range = map.expand_to_line(point_selection.range());
141 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
142 }
143
144 // any vim visual mode (including line mode)
145 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
146 && !range.is_empty()
147 && !selection.reversed
148 {
149 if head.column() > 0 {
150 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
151 } else if head.row().0 > 0 && head != map.max_point() {
152 head = map.clip_point(
153 DisplayPoint::new(
154 head.row().previous_row(),
155 map.line_len(head.row().previous_row()),
156 ),
157 Bias::Left,
158 );
159 // updating range.end is a no-op unless you're cursor is
160 // on the newline containing a multi-buffer divider
161 // in which case the clip_point may have moved the head up
162 // an additional row.
163 range.end = DisplayPoint::new(head.row().next_row(), 0);
164 active_rows.end = head.row();
165 }
166 }
167
168 Self {
169 head,
170 cursor_shape,
171 is_newest,
172 is_local,
173 range,
174 active_rows,
175 user_name,
176 }
177 }
178}
179
180pub struct EditorElement {
181 editor: Entity<Editor>,
182 style: EditorStyle,
183}
184
185type DisplayRowDelta = u32;
186
187impl EditorElement {
188 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
189
190 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
191 Self {
192 editor: editor.clone(),
193 style,
194 }
195 }
196
197 fn register_actions(&self, window: &mut Window, cx: &mut App) {
198 let editor = &self.editor;
199 editor.update(cx, |editor, cx| {
200 for action in editor.editor_actions.borrow().values() {
201 (action)(editor, window, cx)
202 }
203 });
204
205 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
206 crate::clangd_ext::apply_related_actions(editor, window, cx);
207
208 register_action(editor, window, Editor::open_context_menu);
209 register_action(editor, window, Editor::move_left);
210 register_action(editor, window, Editor::move_right);
211 register_action(editor, window, Editor::move_down);
212 register_action(editor, window, Editor::move_down_by_lines);
213 register_action(editor, window, Editor::select_down_by_lines);
214 register_action(editor, window, Editor::move_up);
215 register_action(editor, window, Editor::move_up_by_lines);
216 register_action(editor, window, Editor::select_up_by_lines);
217 register_action(editor, window, Editor::select_page_down);
218 register_action(editor, window, Editor::select_page_up);
219 register_action(editor, window, Editor::cancel);
220 register_action(editor, window, Editor::newline);
221 register_action(editor, window, Editor::newline_above);
222 register_action(editor, window, Editor::newline_below);
223 register_action(editor, window, Editor::backspace);
224 register_action(editor, window, Editor::blame_hover);
225 register_action(editor, window, Editor::delete);
226 register_action(editor, window, Editor::tab);
227 register_action(editor, window, Editor::backtab);
228 register_action(editor, window, Editor::indent);
229 register_action(editor, window, Editor::outdent);
230 register_action(editor, window, Editor::autoindent);
231 register_action(editor, window, Editor::delete_line);
232 register_action(editor, window, Editor::join_lines);
233 register_action(editor, window, Editor::sort_lines_by_length);
234 register_action(editor, window, Editor::sort_lines_case_sensitive);
235 register_action(editor, window, Editor::sort_lines_case_insensitive);
236 register_action(editor, window, Editor::reverse_lines);
237 register_action(editor, window, Editor::shuffle_lines);
238 register_action(editor, window, Editor::convert_indentation_to_spaces);
239 register_action(editor, window, Editor::convert_indentation_to_tabs);
240 register_action(editor, window, Editor::convert_to_upper_case);
241 register_action(editor, window, Editor::convert_to_lower_case);
242 register_action(editor, window, Editor::convert_to_title_case);
243 register_action(editor, window, Editor::convert_to_snake_case);
244 register_action(editor, window, Editor::convert_to_kebab_case);
245 register_action(editor, window, Editor::convert_to_upper_camel_case);
246 register_action(editor, window, Editor::convert_to_lower_camel_case);
247 register_action(editor, window, Editor::convert_to_opposite_case);
248 register_action(editor, window, Editor::convert_to_sentence_case);
249 register_action(editor, window, Editor::toggle_case);
250 register_action(editor, window, Editor::convert_to_rot13);
251 register_action(editor, window, Editor::convert_to_rot47);
252 register_action(editor, window, Editor::delete_to_previous_word_start);
253 register_action(editor, window, Editor::delete_to_previous_subword_start);
254 register_action(editor, window, Editor::delete_to_next_word_end);
255 register_action(editor, window, Editor::delete_to_next_subword_end);
256 register_action(editor, window, Editor::delete_to_beginning_of_line);
257 register_action(editor, window, Editor::delete_to_end_of_line);
258 register_action(editor, window, Editor::cut_to_end_of_line);
259 register_action(editor, window, Editor::duplicate_line_up);
260 register_action(editor, window, Editor::duplicate_line_down);
261 register_action(editor, window, Editor::duplicate_selection);
262 register_action(editor, window, Editor::move_line_up);
263 register_action(editor, window, Editor::move_line_down);
264 register_action(editor, window, Editor::transpose);
265 register_action(editor, window, Editor::rewrap);
266 register_action(editor, window, Editor::cut);
267 register_action(editor, window, Editor::kill_ring_cut);
268 register_action(editor, window, Editor::kill_ring_yank);
269 register_action(editor, window, Editor::copy);
270 register_action(editor, window, Editor::copy_and_trim);
271 register_action(editor, window, Editor::diff_clipboard_with_selection);
272 register_action(editor, window, Editor::paste);
273 register_action(editor, window, Editor::undo);
274 register_action(editor, window, Editor::redo);
275 register_action(editor, window, Editor::move_page_up);
276 register_action(editor, window, Editor::move_page_down);
277 register_action(editor, window, Editor::next_screen);
278 register_action(editor, window, Editor::scroll_cursor_top);
279 register_action(editor, window, Editor::scroll_cursor_center);
280 register_action(editor, window, Editor::scroll_cursor_bottom);
281 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
282 register_action(editor, window, |editor, _: &LineDown, window, cx| {
283 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
284 });
285 register_action(editor, window, |editor, _: &LineUp, window, cx| {
286 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
287 });
288 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
289 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
290 });
291 register_action(
292 editor,
293 window,
294 |editor, HandleInput(text): &HandleInput, window, cx| {
295 if text.is_empty() {
296 return;
297 }
298 editor.handle_input(text, window, cx);
299 },
300 );
301 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
302 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
303 });
304 register_action(editor, window, |editor, _: &PageDown, window, cx| {
305 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
306 });
307 register_action(editor, window, |editor, _: &PageUp, window, cx| {
308 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
309 });
310 register_action(editor, window, Editor::move_to_previous_word_start);
311 register_action(editor, window, Editor::move_to_previous_subword_start);
312 register_action(editor, window, Editor::move_to_next_word_end);
313 register_action(editor, window, Editor::move_to_next_subword_end);
314 register_action(editor, window, Editor::move_to_beginning_of_line);
315 register_action(editor, window, Editor::move_to_end_of_line);
316 register_action(editor, window, Editor::move_to_start_of_paragraph);
317 register_action(editor, window, Editor::move_to_end_of_paragraph);
318 register_action(editor, window, Editor::move_to_beginning);
319 register_action(editor, window, Editor::move_to_end);
320 register_action(editor, window, Editor::move_to_start_of_excerpt);
321 register_action(editor, window, Editor::move_to_start_of_next_excerpt);
322 register_action(editor, window, Editor::move_to_end_of_excerpt);
323 register_action(editor, window, Editor::move_to_end_of_previous_excerpt);
324 register_action(editor, window, Editor::select_up);
325 register_action(editor, window, Editor::select_down);
326 register_action(editor, window, Editor::select_left);
327 register_action(editor, window, Editor::select_right);
328 register_action(editor, window, Editor::select_to_previous_word_start);
329 register_action(editor, window, Editor::select_to_previous_subword_start);
330 register_action(editor, window, Editor::select_to_next_word_end);
331 register_action(editor, window, Editor::select_to_next_subword_end);
332 register_action(editor, window, Editor::select_to_beginning_of_line);
333 register_action(editor, window, Editor::select_to_end_of_line);
334 register_action(editor, window, Editor::select_to_start_of_paragraph);
335 register_action(editor, window, Editor::select_to_end_of_paragraph);
336 register_action(editor, window, Editor::select_to_start_of_excerpt);
337 register_action(editor, window, Editor::select_to_start_of_next_excerpt);
338 register_action(editor, window, Editor::select_to_end_of_excerpt);
339 register_action(editor, window, Editor::select_to_end_of_previous_excerpt);
340 register_action(editor, window, Editor::select_to_beginning);
341 register_action(editor, window, Editor::select_to_end);
342 register_action(editor, window, Editor::select_all);
343 register_action(editor, window, |editor, action, window, cx| {
344 editor.select_all_matches(action, window, cx).log_err();
345 });
346 register_action(editor, window, Editor::select_line);
347 register_action(editor, window, Editor::split_selection_into_lines);
348 register_action(editor, window, Editor::add_selection_above);
349 register_action(editor, window, Editor::add_selection_below);
350 register_action(editor, window, |editor, action, window, cx| {
351 editor.select_next(action, window, cx).log_err();
352 });
353 register_action(editor, window, |editor, action, window, cx| {
354 editor.select_previous(action, window, cx).log_err();
355 });
356 register_action(editor, window, |editor, action, window, cx| {
357 editor.find_next_match(action, window, cx).log_err();
358 });
359 register_action(editor, window, |editor, action, window, cx| {
360 editor.find_previous_match(action, window, cx).log_err();
361 });
362 register_action(editor, window, Editor::toggle_comments);
363 register_action(editor, window, Editor::select_larger_syntax_node);
364 register_action(editor, window, Editor::select_smaller_syntax_node);
365 register_action(editor, window, Editor::unwrap_syntax_node);
366 register_action(editor, window, Editor::select_enclosing_symbol);
367 register_action(editor, window, Editor::move_to_enclosing_bracket);
368 register_action(editor, window, Editor::undo_selection);
369 register_action(editor, window, Editor::redo_selection);
370 if !editor.read(cx).is_singleton(cx) {
371 register_action(editor, window, Editor::expand_excerpts);
372 register_action(editor, window, Editor::expand_excerpts_up);
373 register_action(editor, window, Editor::expand_excerpts_down);
374 }
375 register_action(editor, window, Editor::go_to_diagnostic);
376 register_action(editor, window, Editor::go_to_prev_diagnostic);
377 register_action(editor, window, Editor::go_to_next_hunk);
378 register_action(editor, window, Editor::go_to_prev_hunk);
379 register_action(editor, window, |editor, action, window, cx| {
380 editor
381 .go_to_definition(action, window, cx)
382 .detach_and_log_err(cx);
383 });
384 register_action(editor, window, |editor, action, window, cx| {
385 editor
386 .go_to_definition_split(action, window, cx)
387 .detach_and_log_err(cx);
388 });
389 register_action(editor, window, |editor, action, window, cx| {
390 editor
391 .go_to_declaration(action, window, cx)
392 .detach_and_log_err(cx);
393 });
394 register_action(editor, window, |editor, action, window, cx| {
395 editor
396 .go_to_declaration_split(action, window, cx)
397 .detach_and_log_err(cx);
398 });
399 register_action(editor, window, |editor, action, window, cx| {
400 editor
401 .go_to_implementation(action, window, cx)
402 .detach_and_log_err(cx);
403 });
404 register_action(editor, window, |editor, action, window, cx| {
405 editor
406 .go_to_implementation_split(action, window, cx)
407 .detach_and_log_err(cx);
408 });
409 register_action(editor, window, |editor, action, window, cx| {
410 editor
411 .go_to_type_definition(action, window, cx)
412 .detach_and_log_err(cx);
413 });
414 register_action(editor, window, |editor, action, window, cx| {
415 editor
416 .go_to_type_definition_split(action, window, cx)
417 .detach_and_log_err(cx);
418 });
419 register_action(editor, window, Editor::open_url);
420 register_action(editor, window, Editor::open_selected_filename);
421 register_action(editor, window, Editor::fold);
422 register_action(editor, window, Editor::fold_at_level);
423 register_action(editor, window, Editor::fold_all);
424 register_action(editor, window, Editor::fold_function_bodies);
425 register_action(editor, window, Editor::fold_recursive);
426 register_action(editor, window, Editor::toggle_fold);
427 register_action(editor, window, Editor::toggle_fold_recursive);
428 register_action(editor, window, Editor::toggle_fold_all);
429 register_action(editor, window, Editor::unfold_lines);
430 register_action(editor, window, Editor::unfold_recursive);
431 register_action(editor, window, Editor::unfold_all);
432 register_action(editor, window, Editor::fold_selected_ranges);
433 register_action(editor, window, Editor::set_mark);
434 register_action(editor, window, Editor::swap_selection_ends);
435 register_action(editor, window, Editor::show_completions);
436 register_action(editor, window, Editor::show_word_completions);
437 register_action(editor, window, Editor::toggle_code_actions);
438 register_action(editor, window, Editor::open_excerpts);
439 register_action(editor, window, Editor::open_excerpts_in_split);
440 register_action(editor, window, Editor::open_proposed_changes_editor);
441 register_action(editor, window, Editor::toggle_soft_wrap);
442 register_action(editor, window, Editor::toggle_tab_bar);
443 register_action(editor, window, Editor::toggle_line_numbers);
444 register_action(editor, window, Editor::toggle_relative_line_numbers);
445 register_action(editor, window, Editor::toggle_indent_guides);
446 register_action(editor, window, Editor::toggle_inlay_hints);
447 register_action(editor, window, Editor::toggle_edit_predictions);
448 if editor.read(cx).diagnostics_enabled() {
449 register_action(editor, window, Editor::toggle_diagnostics);
450 }
451 if editor.read(cx).inline_diagnostics_enabled() {
452 register_action(editor, window, Editor::toggle_inline_diagnostics);
453 }
454 if editor.read(cx).supports_minimap(cx) {
455 register_action(editor, window, Editor::toggle_minimap);
456 }
457 register_action(editor, window, hover_popover::hover);
458 register_action(editor, window, Editor::reveal_in_finder);
459 register_action(editor, window, Editor::copy_path);
460 register_action(editor, window, Editor::copy_relative_path);
461 register_action(editor, window, Editor::copy_file_name);
462 register_action(editor, window, Editor::copy_file_name_without_extension);
463 register_action(editor, window, Editor::copy_highlight_json);
464 register_action(editor, window, Editor::copy_permalink_to_line);
465 register_action(editor, window, Editor::open_permalink_to_line);
466 register_action(editor, window, Editor::copy_file_location);
467 register_action(editor, window, Editor::toggle_git_blame);
468 register_action(editor, window, Editor::toggle_git_blame_inline);
469 register_action(editor, window, Editor::open_git_blame_commit);
470 register_action(editor, window, Editor::toggle_selected_diff_hunks);
471 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
472 register_action(editor, window, Editor::stage_and_next);
473 register_action(editor, window, Editor::unstage_and_next);
474 register_action(editor, window, Editor::expand_all_diff_hunks);
475 register_action(editor, window, Editor::go_to_previous_change);
476 register_action(editor, window, Editor::go_to_next_change);
477
478 register_action(editor, window, |editor, action, window, cx| {
479 if let Some(task) = editor.format(action, window, cx) {
480 task.detach_and_notify_err(window, cx);
481 } else {
482 cx.propagate();
483 }
484 });
485 register_action(editor, window, |editor, action, window, cx| {
486 if let Some(task) = editor.format_selections(action, window, cx) {
487 task.detach_and_notify_err(window, cx);
488 } else {
489 cx.propagate();
490 }
491 });
492 register_action(editor, window, |editor, action, window, cx| {
493 if let Some(task) = editor.organize_imports(action, window, cx) {
494 task.detach_and_notify_err(window, cx);
495 } else {
496 cx.propagate();
497 }
498 });
499 register_action(editor, window, Editor::restart_language_server);
500 register_action(editor, window, Editor::stop_language_server);
501 register_action(editor, window, Editor::show_character_palette);
502 register_action(editor, window, |editor, action, window, cx| {
503 if let Some(task) = editor.confirm_completion(action, window, cx) {
504 task.detach_and_notify_err(window, cx);
505 } else {
506 cx.propagate();
507 }
508 });
509 register_action(editor, window, |editor, action, window, cx| {
510 if let Some(task) = editor.confirm_completion_replace(action, window, cx) {
511 task.detach_and_notify_err(window, cx);
512 } else {
513 cx.propagate();
514 }
515 });
516 register_action(editor, window, |editor, action, window, cx| {
517 if let Some(task) = editor.confirm_completion_insert(action, window, cx) {
518 task.detach_and_notify_err(window, cx);
519 } else {
520 cx.propagate();
521 }
522 });
523 register_action(editor, window, |editor, action, window, cx| {
524 if let Some(task) = editor.compose_completion(action, window, cx) {
525 task.detach_and_notify_err(window, cx);
526 } else {
527 cx.propagate();
528 }
529 });
530 register_action(editor, window, |editor, action, window, cx| {
531 if let Some(task) = editor.confirm_code_action(action, window, cx) {
532 task.detach_and_notify_err(window, cx);
533 } else {
534 cx.propagate();
535 }
536 });
537 register_action(editor, window, |editor, action, window, cx| {
538 if let Some(task) = editor.rename(action, window, cx) {
539 task.detach_and_notify_err(window, cx);
540 } else {
541 cx.propagate();
542 }
543 });
544 register_action(editor, window, |editor, action, window, cx| {
545 if let Some(task) = editor.confirm_rename(action, window, cx) {
546 task.detach_and_notify_err(window, cx);
547 } else {
548 cx.propagate();
549 }
550 });
551 register_action(editor, window, |editor, action, window, cx| {
552 if let Some(task) = editor.find_all_references(action, window, cx) {
553 task.detach_and_log_err(cx);
554 } else {
555 cx.propagate();
556 }
557 });
558 register_action(editor, window, Editor::show_signature_help);
559 register_action(editor, window, Editor::signature_help_prev);
560 register_action(editor, window, Editor::signature_help_next);
561 register_action(editor, window, Editor::next_edit_prediction);
562 register_action(editor, window, Editor::previous_edit_prediction);
563 register_action(editor, window, Editor::show_edit_prediction);
564 register_action(editor, window, Editor::context_menu_first);
565 register_action(editor, window, Editor::context_menu_prev);
566 register_action(editor, window, Editor::context_menu_next);
567 register_action(editor, window, Editor::context_menu_last);
568 register_action(editor, window, Editor::display_cursor_names);
569 register_action(editor, window, Editor::unique_lines_case_insensitive);
570 register_action(editor, window, Editor::unique_lines_case_sensitive);
571 register_action(editor, window, Editor::accept_partial_edit_prediction);
572 register_action(editor, window, Editor::accept_edit_prediction);
573 register_action(editor, window, Editor::restore_file);
574 register_action(editor, window, Editor::git_restore);
575 register_action(editor, window, Editor::apply_all_diff_hunks);
576 register_action(editor, window, Editor::apply_selected_diff_hunks);
577 register_action(editor, window, Editor::open_active_item_in_terminal);
578 register_action(editor, window, Editor::reload_file);
579 register_action(editor, window, Editor::spawn_nearest_task);
580 register_action(editor, window, Editor::insert_uuid_v4);
581 register_action(editor, window, Editor::insert_uuid_v7);
582 register_action(editor, window, Editor::open_selections_in_multibuffer);
583 register_action(editor, window, Editor::toggle_breakpoint);
584 register_action(editor, window, Editor::edit_log_breakpoint);
585 register_action(editor, window, Editor::enable_breakpoint);
586 register_action(editor, window, Editor::disable_breakpoint);
587 }
588
589 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
590 let position_map = layout.position_map.clone();
591 window.on_key_event({
592 let editor = self.editor.clone();
593 move |event: &ModifiersChangedEvent, phase, window, cx| {
594 if phase != DispatchPhase::Bubble {
595 return;
596 }
597 editor.update(cx, |editor, cx| {
598 let inlay_hint_settings = inlay_hint_settings(
599 editor.selections.newest_anchor().head(),
600 &editor.buffer.read(cx).snapshot(cx),
601 cx,
602 );
603
604 if let Some(inlay_modifiers) = inlay_hint_settings
605 .toggle_on_modifiers_press
606 .as_ref()
607 .filter(|modifiers| modifiers.modified())
608 {
609 editor.refresh_inlay_hints(
610 InlayHintRefreshReason::ModifiersChanged(
611 inlay_modifiers == &event.modifiers,
612 ),
613 cx,
614 );
615 }
616
617 if editor.hover_state.focused(window, cx) {
618 return;
619 }
620
621 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
622 })
623 }
624 });
625 }
626
627 fn mouse_left_down(
628 editor: &mut Editor,
629 event: &MouseDownEvent,
630 hovered_hunk: Option<Range<Anchor>>,
631 position_map: &PositionMap,
632 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
633 window: &mut Window,
634 cx: &mut Context<Editor>,
635 ) {
636 if window.default_prevented() {
637 return;
638 }
639
640 let text_hitbox = &position_map.text_hitbox;
641 let gutter_hitbox = &position_map.gutter_hitbox;
642 let point_for_position = position_map.point_for_position(event.position);
643 let mut click_count = event.click_count;
644 let mut modifiers = event.modifiers;
645
646 if let Some(hovered_hunk) = hovered_hunk {
647 editor.toggle_single_diff_hunk(hovered_hunk, cx);
648 cx.notify();
649 return;
650 } else if gutter_hitbox.is_hovered(window) {
651 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
652 } else if !text_hitbox.is_hovered(window) {
653 return;
654 }
655
656 if EditorSettings::get_global(cx)
657 .drag_and_drop_selection
658 .enabled
659 && click_count == 1
660 {
661 let newest_anchor = editor.selections.newest_anchor();
662 let snapshot = editor.snapshot(window, cx);
663 let selection = newest_anchor.map(|anchor| anchor.to_display_point(&snapshot));
664 if point_for_position.intersects_selection(&selection) {
665 editor.selection_drag_state = SelectionDragState::ReadyToDrag {
666 selection: newest_anchor.clone(),
667 click_position: event.position,
668 mouse_down_time: Instant::now(),
669 };
670 cx.stop_propagation();
671 return;
672 }
673 }
674
675 let is_singleton = editor.buffer().read(cx).is_singleton();
676
677 if click_count == 2 && !is_singleton {
678 match EditorSettings::get_global(cx).double_click_in_multibuffer {
679 DoubleClickInMultibuffer::Select => {
680 // do nothing special on double click, all selection logic is below
681 }
682 DoubleClickInMultibuffer::Open => {
683 if modifiers.alt {
684 // if double click is made with alt, pretend it's a regular double click without opening and alt,
685 // and run the selection logic.
686 modifiers.alt = false;
687 } else {
688 let scroll_position_row =
689 position_map.scroll_pixel_position.y / position_map.line_height;
690 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
691 + position_map.scroll_pixel_position.y)
692 / position_map.line_height)
693 as u32;
694 let multi_buffer_row = position_map
695 .snapshot
696 .display_point_to_point(
697 DisplayPoint::new(DisplayRow(display_row), 0),
698 Bias::Right,
699 )
700 .row;
701 let line_offset_from_top = display_row - scroll_position_row as u32;
702 // if double click is made without alt, open the corresponding excerp
703 editor.open_excerpts_common(
704 Some(JumpData::MultiBufferRow {
705 row: MultiBufferRow(multi_buffer_row),
706 line_offset_from_top,
707 }),
708 false,
709 window,
710 cx,
711 );
712 return;
713 }
714 }
715 }
716 }
717
718 let position = point_for_position.previous_valid;
719 if let Some(mode) = Editor::columnar_selection_mode(&modifiers, cx) {
720 editor.select(
721 SelectPhase::BeginColumnar {
722 position,
723 reset: match mode {
724 ColumnarMode::FromMouse => true,
725 ColumnarMode::FromSelection => false,
726 },
727 mode: mode,
728 goal_column: point_for_position.exact_unclipped.column(),
729 },
730 window,
731 cx,
732 );
733 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
734 {
735 editor.select(
736 SelectPhase::Extend {
737 position,
738 click_count,
739 },
740 window,
741 cx,
742 );
743 } else {
744 editor.select(
745 SelectPhase::Begin {
746 position,
747 add: Editor::multi_cursor_modifier(true, &modifiers, cx),
748 click_count,
749 },
750 window,
751 cx,
752 );
753 }
754 cx.stop_propagation();
755
756 if !is_singleton {
757 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
758 + position_map.scroll_pixel_position.y)
759 / position_map.line_height) as u32;
760 let multi_buffer_row = position_map
761 .snapshot
762 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
763 .row;
764 if line_numbers
765 .get(&MultiBufferRow(multi_buffer_row))
766 .and_then(|line_number| line_number.hitbox.as_ref())
767 .is_some_and(|hitbox| hitbox.contains(&event.position))
768 {
769 let scroll_position_row =
770 position_map.scroll_pixel_position.y / position_map.line_height;
771 let line_offset_from_top = display_row - scroll_position_row as u32;
772
773 editor.open_excerpts_common(
774 Some(JumpData::MultiBufferRow {
775 row: MultiBufferRow(multi_buffer_row),
776 line_offset_from_top,
777 }),
778 modifiers.alt,
779 window,
780 cx,
781 );
782 cx.stop_propagation();
783 }
784 }
785 }
786
787 fn mouse_right_down(
788 editor: &mut Editor,
789 event: &MouseDownEvent,
790 position_map: &PositionMap,
791 window: &mut Window,
792 cx: &mut Context<Editor>,
793 ) {
794 if position_map.gutter_hitbox.is_hovered(window) {
795 let gutter_right_padding = editor.gutter_dimensions.right_padding;
796 let hitbox = &position_map.gutter_hitbox;
797
798 if event.position.x <= hitbox.bounds.right() - gutter_right_padding {
799 let point_for_position = position_map.point_for_position(event.position);
800 editor.set_breakpoint_context_menu(
801 point_for_position.previous_valid.row(),
802 None,
803 event.position,
804 window,
805 cx,
806 );
807 }
808 return;
809 }
810
811 if !position_map.text_hitbox.is_hovered(window) {
812 return;
813 }
814
815 let point_for_position = position_map.point_for_position(event.position);
816 mouse_context_menu::deploy_context_menu(
817 editor,
818 Some(event.position),
819 point_for_position.previous_valid,
820 window,
821 cx,
822 );
823 cx.stop_propagation();
824 }
825
826 fn mouse_middle_down(
827 editor: &mut Editor,
828 event: &MouseDownEvent,
829 position_map: &PositionMap,
830 window: &mut Window,
831 cx: &mut Context<Editor>,
832 ) {
833 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
834 return;
835 }
836
837 let point_for_position = position_map.point_for_position(event.position);
838 let position = point_for_position.previous_valid;
839
840 editor.select(
841 SelectPhase::BeginColumnar {
842 position,
843 reset: true,
844 mode: ColumnarMode::FromMouse,
845 goal_column: point_for_position.exact_unclipped.column(),
846 },
847 window,
848 cx,
849 );
850 }
851
852 fn mouse_up(
853 editor: &mut Editor,
854 event: &MouseUpEvent,
855 position_map: &PositionMap,
856 window: &mut Window,
857 cx: &mut Context<Editor>,
858 ) {
859 let text_hitbox = &position_map.text_hitbox;
860 let end_selection = editor.has_pending_selection();
861 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
862 let point_for_position = position_map.point_for_position(event.position);
863
864 match editor.selection_drag_state {
865 SelectionDragState::ReadyToDrag {
866 selection: _,
867 ref click_position,
868 mouse_down_time: _,
869 } => {
870 if event.position == *click_position {
871 editor.select(
872 SelectPhase::Begin {
873 position: point_for_position.previous_valid,
874 add: false,
875 click_count: 1, // ready to drag state only occurs on click count 1
876 },
877 window,
878 cx,
879 );
880 editor.selection_drag_state = SelectionDragState::None;
881 cx.stop_propagation();
882 return;
883 } else {
884 debug_panic!("drag state can never be in ready state after drag")
885 }
886 }
887 SelectionDragState::Dragging { ref selection, .. } => {
888 let snapshot = editor.snapshot(window, cx);
889 let selection_display = selection.map(|anchor| anchor.to_display_point(&snapshot));
890 if !point_for_position.intersects_selection(&selection_display)
891 && text_hitbox.is_hovered(window)
892 {
893 let is_cut = !(cfg!(target_os = "macos") && event.modifiers.alt
894 || cfg!(not(target_os = "macos")) && event.modifiers.control);
895 editor.move_selection_on_drop(
896 &selection.clone(),
897 point_for_position.previous_valid,
898 is_cut,
899 window,
900 cx,
901 );
902 }
903 editor.selection_drag_state = SelectionDragState::None;
904 cx.stop_propagation();
905 cx.notify();
906 return;
907 }
908 _ => {}
909 }
910
911 if end_selection {
912 editor.select(SelectPhase::End, window, cx);
913 }
914
915 if end_selection && pending_nonempty_selections {
916 cx.stop_propagation();
917 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
918 && event.button == MouseButton::Middle
919 {
920 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
921 return;
922 }
923
924 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
925 if EditorSettings::get_global(cx).middle_click_paste {
926 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
927 let point_for_position = position_map.point_for_position(event.position);
928 let position = point_for_position.previous_valid;
929
930 editor.select(
931 SelectPhase::Begin {
932 position,
933 add: false,
934 click_count: 1,
935 },
936 window,
937 cx,
938 );
939 editor.insert(&text, window, cx);
940 }
941 cx.stop_propagation()
942 }
943 }
944 }
945
946 fn click(
947 editor: &mut Editor,
948 event: &ClickEvent,
949 position_map: &PositionMap,
950 window: &mut Window,
951 cx: &mut Context<Editor>,
952 ) {
953 let text_hitbox = &position_map.text_hitbox;
954 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
955
956 let hovered_link_modifier = Editor::multi_cursor_modifier(false, &event.modifiers(), cx);
957
958 if let Some(mouse_position) = event.mouse_position()
959 && !pending_nonempty_selections
960 && hovered_link_modifier
961 && text_hitbox.is_hovered(window)
962 {
963 let point = position_map.point_for_position(mouse_position);
964 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
965 editor.selection_drag_state = SelectionDragState::None;
966
967 cx.stop_propagation();
968 }
969 }
970
971 fn mouse_dragged(
972 editor: &mut Editor,
973 event: &MouseMoveEvent,
974 position_map: &PositionMap,
975 window: &mut Window,
976 cx: &mut Context<Editor>,
977 ) {
978 if !editor.has_pending_selection()
979 && matches!(editor.selection_drag_state, SelectionDragState::None)
980 {
981 return;
982 }
983
984 let point_for_position = position_map.point_for_position(event.position);
985 let text_hitbox = &position_map.text_hitbox;
986
987 let scroll_delta = {
988 let text_bounds = text_hitbox.bounds;
989 let mut scroll_delta = gpui::Point::<f32>::default();
990 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
991 let top = text_bounds.origin.y + vertical_margin;
992 let bottom = text_bounds.bottom_left().y - vertical_margin;
993 if event.position.y < top {
994 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
995 }
996 if event.position.y > bottom {
997 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
998 }
999
1000 // We need horizontal width of text
1001 let style = editor.style.clone().unwrap_or_default();
1002 let font_id = window.text_system().resolve_font(&style.text.font());
1003 let font_size = style.text.font_size.to_pixels(window.rem_size());
1004 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
1005
1006 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
1007
1008 let scroll_space: Pixels = scroll_margin_x * em_width;
1009
1010 let left = text_bounds.origin.x + scroll_space;
1011 let right = text_bounds.top_right().x - scroll_space;
1012
1013 if event.position.x < left {
1014 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
1015 }
1016 if event.position.x > right {
1017 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
1018 }
1019 scroll_delta
1020 };
1021
1022 if !editor.has_pending_selection() {
1023 let drop_anchor = position_map
1024 .snapshot
1025 .display_point_to_anchor(point_for_position.previous_valid, Bias::Left);
1026 match editor.selection_drag_state {
1027 SelectionDragState::Dragging {
1028 ref mut drop_cursor,
1029 ref mut hide_drop_cursor,
1030 ..
1031 } => {
1032 drop_cursor.start = drop_anchor;
1033 drop_cursor.end = drop_anchor;
1034 *hide_drop_cursor = !text_hitbox.is_hovered(window);
1035 editor.apply_scroll_delta(scroll_delta, window, cx);
1036 cx.notify();
1037 }
1038 SelectionDragState::ReadyToDrag {
1039 ref selection,
1040 ref click_position,
1041 ref mouse_down_time,
1042 } => {
1043 let drag_and_drop_delay = Duration::from_millis(
1044 EditorSettings::get_global(cx).drag_and_drop_selection.delay,
1045 );
1046 if mouse_down_time.elapsed() >= drag_and_drop_delay {
1047 let drop_cursor = Selection {
1048 id: post_inc(&mut editor.selections.next_selection_id),
1049 start: drop_anchor,
1050 end: drop_anchor,
1051 reversed: false,
1052 goal: SelectionGoal::None,
1053 };
1054 editor.selection_drag_state = SelectionDragState::Dragging {
1055 selection: selection.clone(),
1056 drop_cursor,
1057 hide_drop_cursor: false,
1058 };
1059 editor.apply_scroll_delta(scroll_delta, window, cx);
1060 cx.notify();
1061 } else {
1062 let click_point = position_map.point_for_position(*click_position);
1063 editor.selection_drag_state = SelectionDragState::None;
1064 editor.select(
1065 SelectPhase::Begin {
1066 position: click_point.previous_valid,
1067 add: false,
1068 click_count: 1,
1069 },
1070 window,
1071 cx,
1072 );
1073 editor.select(
1074 SelectPhase::Update {
1075 position: point_for_position.previous_valid,
1076 goal_column: point_for_position.exact_unclipped.column(),
1077 scroll_delta,
1078 },
1079 window,
1080 cx,
1081 );
1082 }
1083 }
1084 _ => {}
1085 }
1086 } else {
1087 editor.select(
1088 SelectPhase::Update {
1089 position: point_for_position.previous_valid,
1090 goal_column: point_for_position.exact_unclipped.column(),
1091 scroll_delta,
1092 },
1093 window,
1094 cx,
1095 );
1096 }
1097 }
1098
1099 fn mouse_moved(
1100 editor: &mut Editor,
1101 event: &MouseMoveEvent,
1102 position_map: &PositionMap,
1103 window: &mut Window,
1104 cx: &mut Context<Editor>,
1105 ) {
1106 let text_hitbox = &position_map.text_hitbox;
1107 let gutter_hitbox = &position_map.gutter_hitbox;
1108 let modifiers = event.modifiers;
1109 let text_hovered = text_hitbox.is_hovered(window);
1110 let gutter_hovered = gutter_hitbox.is_hovered(window);
1111 editor.set_gutter_hovered(gutter_hovered, cx);
1112 editor.show_mouse_cursor(cx);
1113
1114 let point_for_position = position_map.point_for_position(event.position);
1115 let valid_point = point_for_position.previous_valid;
1116
1117 let hovered_diff_control = position_map
1118 .diff_hunk_control_bounds
1119 .iter()
1120 .find(|(_, bounds)| bounds.contains(&event.position))
1121 .map(|(row, _)| *row);
1122
1123 let hovered_diff_hunk_row = if let Some(control_row) = hovered_diff_control {
1124 Some(control_row)
1125 } else {
1126 if text_hovered {
1127 let current_row = valid_point.row();
1128 position_map.display_hunks.iter().find_map(|(hunk, _)| {
1129 if let DisplayDiffHunk::Unfolded {
1130 display_row_range, ..
1131 } = hunk
1132 {
1133 if display_row_range.contains(¤t_row) {
1134 Some(display_row_range.start)
1135 } else {
1136 None
1137 }
1138 } else {
1139 None
1140 }
1141 })
1142 } else {
1143 None
1144 }
1145 };
1146
1147 if hovered_diff_hunk_row != editor.hovered_diff_hunk_row {
1148 editor.hovered_diff_hunk_row = hovered_diff_hunk_row;
1149 cx.notify();
1150 }
1151
1152 if let Some((bounds, blame_entry)) = &position_map.inline_blame_bounds {
1153 let mouse_over_inline_blame = bounds.contains(&event.position);
1154 let mouse_over_popover = editor
1155 .inline_blame_popover
1156 .as_ref()
1157 .and_then(|state| state.popover_bounds)
1158 .map_or(false, |bounds| bounds.contains(&event.position));
1159 let keyboard_grace = editor
1160 .inline_blame_popover
1161 .as_ref()
1162 .map_or(false, |state| state.keyboard_grace);
1163
1164 if mouse_over_inline_blame || mouse_over_popover {
1165 editor.show_blame_popover(&blame_entry, event.position, false, cx);
1166 } else if !keyboard_grace {
1167 editor.hide_blame_popover(cx);
1168 }
1169 } else {
1170 editor.hide_blame_popover(cx);
1171 }
1172
1173 let breakpoint_indicator = if gutter_hovered {
1174 let buffer_anchor = position_map
1175 .snapshot
1176 .display_point_to_anchor(valid_point, Bias::Left);
1177
1178 if let Some((buffer_snapshot, file)) = position_map
1179 .snapshot
1180 .buffer_snapshot
1181 .buffer_for_excerpt(buffer_anchor.excerpt_id)
1182 .and_then(|buffer| buffer.file().map(|file| (buffer, file)))
1183 {
1184 let as_point = text::ToPoint::to_point(&buffer_anchor.text_anchor, buffer_snapshot);
1185
1186 let is_visible = editor
1187 .gutter_breakpoint_indicator
1188 .0
1189 .map_or(false, |indicator| indicator.is_active);
1190
1191 let has_existing_breakpoint =
1192 editor.breakpoint_store.as_ref().map_or(false, |store| {
1193 let Some(project) = &editor.project else {
1194 return false;
1195 };
1196 let Some(abs_path) = project.read(cx).absolute_path(
1197 &ProjectPath {
1198 path: file.path().clone(),
1199 worktree_id: file.worktree_id(cx),
1200 },
1201 cx,
1202 ) else {
1203 return false;
1204 };
1205 store
1206 .read(cx)
1207 .breakpoint_at_row(&abs_path, as_point.row, cx)
1208 .is_some()
1209 });
1210
1211 if !is_visible {
1212 editor.gutter_breakpoint_indicator.1.get_or_insert_with(|| {
1213 cx.spawn(async move |this, cx| {
1214 cx.background_executor()
1215 .timer(Duration::from_millis(200))
1216 .await;
1217
1218 this.update(cx, |this, cx| {
1219 if let Some(indicator) = this.gutter_breakpoint_indicator.0.as_mut()
1220 {
1221 indicator.is_active = true;
1222 cx.notify();
1223 }
1224 })
1225 .ok();
1226 })
1227 });
1228 }
1229
1230 Some(PhantomBreakpointIndicator {
1231 display_row: valid_point.row(),
1232 is_active: is_visible,
1233 collides_with_existing_breakpoint: has_existing_breakpoint,
1234 })
1235 } else {
1236 editor.gutter_breakpoint_indicator.1 = None;
1237 None
1238 }
1239 } else {
1240 editor.gutter_breakpoint_indicator.1 = None;
1241 None
1242 };
1243
1244 if &breakpoint_indicator != &editor.gutter_breakpoint_indicator.0 {
1245 editor.gutter_breakpoint_indicator.0 = breakpoint_indicator;
1246 cx.notify();
1247 }
1248
1249 // Don't trigger hover popover if mouse is hovering over context menu
1250 if text_hovered {
1251 editor.update_hovered_link(
1252 point_for_position,
1253 &position_map.snapshot,
1254 modifiers,
1255 window,
1256 cx,
1257 );
1258
1259 if let Some(point) = point_for_position.as_valid() {
1260 let anchor = position_map
1261 .snapshot
1262 .buffer_snapshot
1263 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
1264 hover_at(editor, Some(anchor), window, cx);
1265 Self::update_visible_cursor(editor, point, position_map, window, cx);
1266 } else {
1267 hover_at(editor, None, window, cx);
1268 }
1269 } else {
1270 editor.hide_hovered_link(cx);
1271 hover_at(editor, None, window, cx);
1272 }
1273 }
1274
1275 fn update_visible_cursor(
1276 editor: &mut Editor,
1277 point: DisplayPoint,
1278 position_map: &PositionMap,
1279 window: &mut Window,
1280 cx: &mut Context<Editor>,
1281 ) {
1282 let snapshot = &position_map.snapshot;
1283 let Some(hub) = editor.collaboration_hub() else {
1284 return;
1285 };
1286 let start = snapshot.display_snapshot.clip_point(
1287 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
1288 Bias::Left,
1289 );
1290 let end = snapshot.display_snapshot.clip_point(
1291 DisplayPoint::new(
1292 point.row(),
1293 (point.column() + 1).min(snapshot.line_len(point.row())),
1294 ),
1295 Bias::Right,
1296 );
1297
1298 let range = snapshot
1299 .buffer_snapshot
1300 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
1301 ..snapshot
1302 .buffer_snapshot
1303 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
1304
1305 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
1306 return;
1307 };
1308 let key = crate::HoveredCursor {
1309 replica_id: selection.replica_id,
1310 selection_id: selection.selection.id,
1311 };
1312 editor.hovered_cursors.insert(
1313 key.clone(),
1314 cx.spawn_in(window, async move |editor, cx| {
1315 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
1316 editor
1317 .update(cx, |editor, cx| {
1318 editor.hovered_cursors.remove(&key);
1319 cx.notify();
1320 })
1321 .ok();
1322 }),
1323 );
1324 cx.notify()
1325 }
1326
1327 fn layout_selections(
1328 &self,
1329 start_anchor: Anchor,
1330 end_anchor: Anchor,
1331 local_selections: &[Selection<Point>],
1332 snapshot: &EditorSnapshot,
1333 start_row: DisplayRow,
1334 end_row: DisplayRow,
1335 window: &mut Window,
1336 cx: &mut App,
1337 ) -> (
1338 Vec<(PlayerColor, Vec<SelectionLayout>)>,
1339 BTreeMap<DisplayRow, LineHighlightSpec>,
1340 Option<DisplayPoint>,
1341 ) {
1342 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1343 let mut active_rows = BTreeMap::new();
1344 let mut newest_selection_head = None;
1345
1346 let Some(editor_with_selections) = self.editor_with_selections(cx) else {
1347 return (selections, active_rows, newest_selection_head);
1348 };
1349
1350 editor_with_selections.update(cx, |editor, cx| {
1351 if editor.show_local_selections {
1352 let mut layouts = Vec::new();
1353 let newest = editor.selections.newest(cx);
1354 for selection in local_selections.iter().cloned() {
1355 let is_empty = selection.start == selection.end;
1356 let is_newest = selection == newest;
1357
1358 let layout = SelectionLayout::new(
1359 selection,
1360 editor.selections.line_mode,
1361 editor.cursor_shape,
1362 &snapshot.display_snapshot,
1363 is_newest,
1364 editor.leader_id.is_none(),
1365 None,
1366 );
1367 if is_newest {
1368 newest_selection_head = Some(layout.head);
1369 }
1370
1371 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1372 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1373 {
1374 let contains_non_empty_selection = active_rows
1375 .entry(DisplayRow(row))
1376 .or_insert_with(LineHighlightSpec::default);
1377 contains_non_empty_selection.selection |= !is_empty;
1378 }
1379 layouts.push(layout);
1380 }
1381
1382 let player = editor.current_user_player_color(cx);
1383 selections.push((player, layouts));
1384
1385 if let SelectionDragState::Dragging {
1386 ref selection,
1387 ref drop_cursor,
1388 ref hide_drop_cursor,
1389 } = editor.selection_drag_state
1390 {
1391 if !hide_drop_cursor
1392 && (drop_cursor
1393 .start
1394 .cmp(&selection.start, &snapshot.buffer_snapshot)
1395 .eq(&Ordering::Less)
1396 || drop_cursor
1397 .end
1398 .cmp(&selection.end, &snapshot.buffer_snapshot)
1399 .eq(&Ordering::Greater))
1400 {
1401 let drag_cursor_layout = SelectionLayout::new(
1402 drop_cursor.clone(),
1403 false,
1404 CursorShape::Bar,
1405 &snapshot.display_snapshot,
1406 false,
1407 false,
1408 None,
1409 );
1410 let absent_color = cx.theme().players().absent();
1411 selections.push((absent_color, vec![drag_cursor_layout]));
1412 }
1413 }
1414 }
1415
1416 if let Some(collaboration_hub) = &editor.collaboration_hub {
1417 // When following someone, render the local selections in their color.
1418 if let Some(leader_id) = editor.leader_id {
1419 match leader_id {
1420 CollaboratorId::PeerId(peer_id) => {
1421 if let Some(collaborator) =
1422 collaboration_hub.collaborators(cx).get(&peer_id)
1423 {
1424 if let Some(participant_index) = collaboration_hub
1425 .user_participant_indices(cx)
1426 .get(&collaborator.user_id)
1427 {
1428 if let Some((local_selection_style, _)) = selections.first_mut()
1429 {
1430 *local_selection_style = cx
1431 .theme()
1432 .players()
1433 .color_for_participant(participant_index.0);
1434 }
1435 }
1436 }
1437 }
1438 CollaboratorId::Agent => {
1439 if let Some((local_selection_style, _)) = selections.first_mut() {
1440 *local_selection_style = cx.theme().players().agent();
1441 }
1442 }
1443 }
1444 }
1445
1446 let mut remote_selections = HashMap::default();
1447 for selection in snapshot.remote_selections_in_range(
1448 &(start_anchor..end_anchor),
1449 collaboration_hub.as_ref(),
1450 cx,
1451 ) {
1452 // Don't re-render the leader's selections, since the local selections
1453 // match theirs.
1454 if Some(selection.collaborator_id) == editor.leader_id {
1455 continue;
1456 }
1457 let key = HoveredCursor {
1458 replica_id: selection.replica_id,
1459 selection_id: selection.selection.id,
1460 };
1461
1462 let is_shown =
1463 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1464
1465 remote_selections
1466 .entry(selection.replica_id)
1467 .or_insert((selection.color, Vec::new()))
1468 .1
1469 .push(SelectionLayout::new(
1470 selection.selection,
1471 selection.line_mode,
1472 selection.cursor_shape,
1473 &snapshot.display_snapshot,
1474 false,
1475 false,
1476 if is_shown { selection.user_name } else { None },
1477 ));
1478 }
1479
1480 selections.extend(remote_selections.into_values());
1481 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1482 let layouts = snapshot
1483 .buffer_snapshot
1484 .selections_in_range(&(start_anchor..end_anchor), true)
1485 .map(move |(_, line_mode, cursor_shape, selection)| {
1486 SelectionLayout::new(
1487 selection,
1488 line_mode,
1489 cursor_shape,
1490 &snapshot.display_snapshot,
1491 false,
1492 false,
1493 None,
1494 )
1495 })
1496 .collect::<Vec<_>>();
1497 let player = editor.current_user_player_color(cx);
1498 selections.push((player, layouts));
1499 }
1500 });
1501 (selections, active_rows, newest_selection_head)
1502 }
1503
1504 fn collect_cursors(
1505 &self,
1506 snapshot: &EditorSnapshot,
1507 cx: &mut App,
1508 ) -> Vec<(DisplayPoint, Hsla)> {
1509 let editor = self.editor.read(cx);
1510 let mut cursors = Vec::new();
1511 let mut skip_local = false;
1512 let mut add_cursor = |anchor: Anchor, color| {
1513 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1514 };
1515 // Remote cursors
1516 if let Some(collaboration_hub) = &editor.collaboration_hub {
1517 for remote_selection in snapshot.remote_selections_in_range(
1518 &(Anchor::min()..Anchor::max()),
1519 collaboration_hub.deref(),
1520 cx,
1521 ) {
1522 add_cursor(
1523 remote_selection.selection.head(),
1524 remote_selection.color.cursor,
1525 );
1526 if Some(remote_selection.collaborator_id) == editor.leader_id {
1527 skip_local = true;
1528 }
1529 }
1530 }
1531 // Local cursors
1532 if !skip_local {
1533 let color = cx.theme().players().local().cursor;
1534 editor.selections.disjoint.iter().for_each(|selection| {
1535 add_cursor(selection.head(), color);
1536 });
1537 if let Some(ref selection) = editor.selections.pending_anchor() {
1538 add_cursor(selection.head(), color);
1539 }
1540 }
1541 cursors
1542 }
1543
1544 fn layout_visible_cursors(
1545 &self,
1546 snapshot: &EditorSnapshot,
1547 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1548 row_block_types: &HashMap<DisplayRow, bool>,
1549 visible_display_row_range: Range<DisplayRow>,
1550 line_layouts: &[LineWithInvisibles],
1551 text_hitbox: &Hitbox,
1552 content_origin: gpui::Point<Pixels>,
1553 scroll_position: gpui::Point<f32>,
1554 scroll_pixel_position: gpui::Point<Pixels>,
1555 line_height: Pixels,
1556 em_width: Pixels,
1557 em_advance: Pixels,
1558 autoscroll_containing_element: bool,
1559 window: &mut Window,
1560 cx: &mut App,
1561 ) -> Vec<CursorLayout> {
1562 let mut autoscroll_bounds = None;
1563 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1564 let mut cursors = Vec::new();
1565
1566 let show_local_cursors = editor.show_local_cursors(window, cx);
1567
1568 for (player_color, selections) in selections {
1569 for selection in selections {
1570 let cursor_position = selection.head;
1571
1572 let in_range = visible_display_row_range.contains(&cursor_position.row());
1573 if (selection.is_local && !show_local_cursors)
1574 || !in_range
1575 || row_block_types.get(&cursor_position.row()) == Some(&true)
1576 {
1577 continue;
1578 }
1579
1580 let cursor_row_layout = &line_layouts
1581 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1582 let cursor_column = cursor_position.column() as usize;
1583
1584 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1585 let mut block_width =
1586 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1587 if block_width == Pixels::ZERO {
1588 block_width = em_advance;
1589 }
1590 let block_text = if let CursorShape::Block = selection.cursor_shape {
1591 snapshot
1592 .grapheme_at(cursor_position)
1593 .or_else(|| {
1594 if snapshot.is_empty() {
1595 snapshot.placeholder_text().and_then(|s| {
1596 s.graphemes(true).next().map(|s| s.to_string().into())
1597 })
1598 } else {
1599 None
1600 }
1601 })
1602 .map(|text| {
1603 let len = text.len();
1604
1605 let font = cursor_row_layout
1606 .font_id_for_index(cursor_column)
1607 .and_then(|cursor_font_id| {
1608 window.text_system().get_font_for_id(cursor_font_id)
1609 })
1610 .unwrap_or(self.style.text.font());
1611
1612 // Invert the text color for the block cursor. Ensure that the text
1613 // color is opaque enough to be visible against the background color.
1614 //
1615 // 0.75 is an arbitrary threshold to determine if the background color is
1616 // opaque enough to use as a text color.
1617 //
1618 // TODO: In the future we should ensure themes have a `text_inverse` color.
1619 let color = if cx.theme().colors().editor_background.a < 0.75 {
1620 match cx.theme().appearance {
1621 Appearance::Dark => Hsla::black(),
1622 Appearance::Light => Hsla::white(),
1623 }
1624 } else {
1625 cx.theme().colors().editor_background
1626 };
1627
1628 window.text_system().shape_line(
1629 text,
1630 cursor_row_layout.font_size,
1631 &[TextRun {
1632 len,
1633 font,
1634 color,
1635 background_color: None,
1636 strikethrough: None,
1637 underline: None,
1638 }],
1639 None,
1640 )
1641 })
1642 } else {
1643 None
1644 };
1645
1646 let x = cursor_character_x - scroll_pixel_position.x;
1647 let y = (cursor_position.row().as_f32()
1648 - scroll_pixel_position.y / line_height)
1649 * line_height;
1650 if selection.is_newest {
1651 editor.pixel_position_of_newest_cursor = Some(point(
1652 text_hitbox.origin.x + x + block_width / 2.,
1653 text_hitbox.origin.y + y + line_height / 2.,
1654 ));
1655
1656 if autoscroll_containing_element {
1657 let top = text_hitbox.origin.y
1658 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1659 * line_height;
1660 let left = text_hitbox.origin.x
1661 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1662 .max(0.)
1663 * em_width;
1664
1665 let bottom = text_hitbox.origin.y
1666 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1667 * line_height;
1668 let right = text_hitbox.origin.x
1669 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1670 * em_width;
1671
1672 autoscroll_bounds =
1673 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1674 }
1675 }
1676
1677 let mut cursor = CursorLayout {
1678 color: player_color.cursor,
1679 block_width,
1680 origin: point(x, y),
1681 line_height,
1682 shape: selection.cursor_shape,
1683 block_text,
1684 cursor_name: None,
1685 };
1686 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1687 string: name,
1688 color: self.style.background,
1689 is_top_row: cursor_position.row().0 == 0,
1690 });
1691 cursor.layout(content_origin, cursor_name, window, cx);
1692 cursors.push(cursor);
1693 }
1694 }
1695
1696 cursors
1697 });
1698
1699 if let Some(bounds) = autoscroll_bounds {
1700 window.request_autoscroll(bounds);
1701 }
1702
1703 cursor_layouts
1704 }
1705
1706 fn layout_scrollbars(
1707 &self,
1708 snapshot: &EditorSnapshot,
1709 scrollbar_layout_information: &ScrollbarLayoutInformation,
1710 content_offset: gpui::Point<Pixels>,
1711 scroll_position: gpui::Point<f32>,
1712 non_visible_cursors: bool,
1713 right_margin: Pixels,
1714 editor_width: Pixels,
1715 window: &mut Window,
1716 cx: &mut App,
1717 ) -> Option<EditorScrollbars> {
1718 let show_scrollbars = self.editor.read(cx).show_scrollbars;
1719 if (!show_scrollbars.horizontal && !show_scrollbars.vertical)
1720 || self.style.scrollbar_width.is_zero()
1721 {
1722 return None;
1723 }
1724
1725 // If a drag took place after we started dragging the scrollbar,
1726 // cancel the scrollbar drag.
1727 if cx.has_active_drag() {
1728 self.editor.update(cx, |editor, cx| {
1729 editor.scroll_manager.reset_scrollbar_state(cx)
1730 });
1731 }
1732
1733 let editor_settings = EditorSettings::get_global(cx);
1734 let scrollbar_settings = editor_settings.scrollbar;
1735 let show_scrollbars = match scrollbar_settings.show {
1736 ShowScrollbar::Auto => {
1737 let editor = self.editor.read(cx);
1738 let is_singleton = editor.is_singleton(cx);
1739 // Git
1740 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1741 ||
1742 // Buffer Search Results
1743 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1744 ||
1745 // Selected Text Occurrences
1746 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1747 ||
1748 // Selected Symbol Occurrences
1749 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1750 ||
1751 // Diagnostics
1752 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1753 ||
1754 // Cursors out of sight
1755 non_visible_cursors
1756 ||
1757 // Scrollmanager
1758 editor.scroll_manager.scrollbars_visible()
1759 }
1760 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1761 ShowScrollbar::Always => true,
1762 ShowScrollbar::Never => return None,
1763 };
1764
1765 // The horizontal scrollbar is usually slightly offset to align nicely with
1766 // indent guides. However, this offset is not needed if indent guides are
1767 // disabled for the current editor.
1768 let content_offset = self
1769 .editor
1770 .read(cx)
1771 .show_indent_guides
1772 .is_none_or(|should_show| should_show)
1773 .then_some(content_offset)
1774 .unwrap_or_default();
1775
1776 Some(EditorScrollbars::from_scrollbar_axes(
1777 ScrollbarAxes {
1778 horizontal: scrollbar_settings.axes.horizontal
1779 && self.editor.read(cx).show_scrollbars.horizontal,
1780 vertical: scrollbar_settings.axes.vertical
1781 && self.editor.read(cx).show_scrollbars.vertical,
1782 },
1783 scrollbar_layout_information,
1784 content_offset,
1785 scroll_position,
1786 self.style.scrollbar_width,
1787 right_margin,
1788 editor_width,
1789 show_scrollbars,
1790 self.editor.read(cx).scroll_manager.active_scrollbar_state(),
1791 window,
1792 ))
1793 }
1794
1795 fn layout_minimap(
1796 &self,
1797 snapshot: &EditorSnapshot,
1798 minimap_width: Pixels,
1799 scroll_position: gpui::Point<f32>,
1800 scrollbar_layout_information: &ScrollbarLayoutInformation,
1801 scrollbar_layout: Option<&EditorScrollbars>,
1802 window: &mut Window,
1803 cx: &mut App,
1804 ) -> Option<MinimapLayout> {
1805 let minimap_editor = self.editor.read(cx).minimap().cloned()?;
1806
1807 let minimap_settings = EditorSettings::get_global(cx).minimap;
1808
1809 if minimap_settings.on_active_editor() {
1810 let active_editor = self.editor.read(cx).workspace().and_then(|ws| {
1811 ws.read(cx)
1812 .active_pane()
1813 .read(cx)
1814 .active_item()
1815 .and_then(|i| i.act_as::<Editor>(cx))
1816 });
1817 if active_editor.is_some_and(|e| e != self.editor) {
1818 return None;
1819 }
1820 }
1821
1822 if !snapshot.mode.is_full()
1823 || minimap_width.is_zero()
1824 || matches!(
1825 minimap_settings.show,
1826 ShowMinimap::Auto if scrollbar_layout.is_none_or(|layout| !layout.visible)
1827 )
1828 {
1829 return None;
1830 }
1831
1832 const MINIMAP_AXIS: ScrollbarAxis = ScrollbarAxis::Vertical;
1833
1834 let ScrollbarLayoutInformation {
1835 editor_bounds,
1836 scroll_range,
1837 glyph_grid_cell,
1838 } = scrollbar_layout_information;
1839
1840 let line_height = glyph_grid_cell.height;
1841 let scroll_position = scroll_position.along(MINIMAP_AXIS);
1842
1843 let top_right_anchor = scrollbar_layout
1844 .and_then(|layout| layout.vertical.as_ref())
1845 .map(|vertical_scrollbar| vertical_scrollbar.hitbox.origin)
1846 .unwrap_or_else(|| editor_bounds.top_right());
1847
1848 let thumb_state = self
1849 .editor
1850 .read_with(cx, |editor, _| editor.scroll_manager.minimap_thumb_state());
1851
1852 let show_thumb = match minimap_settings.thumb {
1853 MinimapThumb::Always => true,
1854 MinimapThumb::Hover => thumb_state.is_some(),
1855 };
1856
1857 let minimap_bounds = Bounds::from_corner_and_size(
1858 Corner::TopRight,
1859 top_right_anchor,
1860 size(minimap_width, editor_bounds.size.height),
1861 );
1862 let minimap_line_height = self.get_minimap_line_height(
1863 minimap_editor
1864 .read(cx)
1865 .text_style_refinement
1866 .as_ref()
1867 .and_then(|refinement| refinement.font_size)
1868 .unwrap_or(MINIMAP_FONT_SIZE),
1869 window,
1870 cx,
1871 );
1872 let minimap_height = minimap_bounds.size.height;
1873
1874 let visible_editor_lines = editor_bounds.size.height / line_height;
1875 let total_editor_lines = scroll_range.height / line_height;
1876 let minimap_lines = minimap_height / minimap_line_height;
1877
1878 let minimap_scroll_top = MinimapLayout::calculate_minimap_top_offset(
1879 total_editor_lines,
1880 visible_editor_lines,
1881 minimap_lines,
1882 scroll_position,
1883 );
1884
1885 let layout = ScrollbarLayout::for_minimap(
1886 window.insert_hitbox(minimap_bounds, HitboxBehavior::Normal),
1887 visible_editor_lines,
1888 total_editor_lines,
1889 minimap_line_height,
1890 scroll_position,
1891 minimap_scroll_top,
1892 show_thumb,
1893 )
1894 .with_thumb_state(thumb_state);
1895
1896 minimap_editor.update(cx, |editor, cx| {
1897 editor.set_scroll_position(point(0., minimap_scroll_top), window, cx)
1898 });
1899
1900 // Required for the drop shadow to be visible
1901 const PADDING_OFFSET: Pixels = px(4.);
1902
1903 let mut minimap = div()
1904 .size_full()
1905 .shadow_xs()
1906 .px(PADDING_OFFSET)
1907 .child(minimap_editor)
1908 .into_any_element();
1909
1910 let extended_bounds = minimap_bounds.extend(Edges {
1911 right: PADDING_OFFSET,
1912 left: PADDING_OFFSET,
1913 ..Default::default()
1914 });
1915 minimap.layout_as_root(extended_bounds.size.into(), window, cx);
1916 window.with_absolute_element_offset(extended_bounds.origin, |window| {
1917 minimap.prepaint(window, cx)
1918 });
1919
1920 Some(MinimapLayout {
1921 minimap,
1922 thumb_layout: layout,
1923 thumb_border_style: minimap_settings.thumb_border,
1924 minimap_line_height,
1925 minimap_scroll_top,
1926 max_scroll_top: total_editor_lines,
1927 })
1928 }
1929
1930 fn get_minimap_line_height(
1931 &self,
1932 font_size: AbsoluteLength,
1933 window: &mut Window,
1934 cx: &mut App,
1935 ) -> Pixels {
1936 let rem_size = self.rem_size(cx).unwrap_or(window.rem_size());
1937 let mut text_style = self.style.text.clone();
1938 text_style.font_size = font_size;
1939 text_style.line_height_in_pixels(rem_size)
1940 }
1941
1942 fn get_minimap_width(
1943 &self,
1944 minimap_settings: &Minimap,
1945 scrollbars_shown: bool,
1946 text_width: Pixels,
1947 em_width: Pixels,
1948 font_size: Pixels,
1949 rem_size: Pixels,
1950 cx: &App,
1951 ) -> Option<Pixels> {
1952 if minimap_settings.show == ShowMinimap::Auto && !scrollbars_shown {
1953 return None;
1954 }
1955
1956 let minimap_font_size = self.editor.read_with(cx, |editor, cx| {
1957 editor.minimap().map(|minimap_editor| {
1958 minimap_editor
1959 .read(cx)
1960 .text_style_refinement
1961 .as_ref()
1962 .and_then(|refinement| refinement.font_size)
1963 .unwrap_or(MINIMAP_FONT_SIZE)
1964 })
1965 })?;
1966
1967 let minimap_em_width = em_width * (minimap_font_size.to_pixels(rem_size) / font_size);
1968
1969 let minimap_width = (text_width * MinimapLayout::MINIMAP_WIDTH_PCT)
1970 .min(minimap_em_width * minimap_settings.max_width_columns.get() as f32);
1971
1972 (minimap_width >= minimap_em_width * MinimapLayout::MINIMAP_MIN_WIDTH_COLUMNS)
1973 .then_some(minimap_width)
1974 }
1975
1976 fn prepaint_crease_toggles(
1977 &self,
1978 crease_toggles: &mut [Option<AnyElement>],
1979 line_height: Pixels,
1980 gutter_dimensions: &GutterDimensions,
1981 gutter_settings: crate::editor_settings::Gutter,
1982 scroll_pixel_position: gpui::Point<Pixels>,
1983 gutter_hitbox: &Hitbox,
1984 window: &mut Window,
1985 cx: &mut App,
1986 ) {
1987 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1988 if let Some(crease_toggle) = crease_toggle {
1989 debug_assert!(gutter_settings.folds);
1990 let available_space = size(
1991 AvailableSpace::MinContent,
1992 AvailableSpace::Definite(line_height * 0.55),
1993 );
1994 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1995
1996 let position = point(
1997 gutter_dimensions.width - gutter_dimensions.right_padding,
1998 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1999 );
2000 let centering_offset = point(
2001 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
2002 (line_height - crease_toggle_size.height) / 2.,
2003 );
2004 let origin = gutter_hitbox.origin + position + centering_offset;
2005 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
2006 }
2007 }
2008 }
2009
2010 fn prepaint_expand_toggles(
2011 &self,
2012 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
2013 window: &mut Window,
2014 cx: &mut App,
2015 ) {
2016 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
2017 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
2018 expand_toggle.layout_as_root(available_space, window, cx);
2019 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
2020 }
2021 }
2022
2023 fn prepaint_crease_trailers(
2024 &self,
2025 trailers: Vec<Option<AnyElement>>,
2026 lines: &[LineWithInvisibles],
2027 line_height: Pixels,
2028 content_origin: gpui::Point<Pixels>,
2029 scroll_pixel_position: gpui::Point<Pixels>,
2030 em_width: Pixels,
2031 window: &mut Window,
2032 cx: &mut App,
2033 ) -> Vec<Option<CreaseTrailerLayout>> {
2034 trailers
2035 .into_iter()
2036 .enumerate()
2037 .map(|(ix, element)| {
2038 let mut element = element?;
2039 let available_space = size(
2040 AvailableSpace::MinContent,
2041 AvailableSpace::Definite(line_height),
2042 );
2043 let size = element.layout_as_root(available_space, window, cx);
2044
2045 let line = &lines[ix];
2046 let padding = if line.width == Pixels::ZERO {
2047 Pixels::ZERO
2048 } else {
2049 4. * em_width
2050 };
2051 let position = point(
2052 scroll_pixel_position.x + line.width + padding,
2053 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
2054 );
2055 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
2056 let origin = content_origin + position + centering_offset;
2057 element.prepaint_as_root(origin, available_space, window, cx);
2058 Some(CreaseTrailerLayout {
2059 element,
2060 bounds: Bounds::new(origin, size),
2061 })
2062 })
2063 .collect()
2064 }
2065
2066 // Folds contained in a hunk are ignored apart from shrinking visual size
2067 // If a fold contains any hunks then that fold line is marked as modified
2068 fn layout_gutter_diff_hunks(
2069 &self,
2070 line_height: Pixels,
2071 gutter_hitbox: &Hitbox,
2072 display_rows: Range<DisplayRow>,
2073 snapshot: &EditorSnapshot,
2074 window: &mut Window,
2075 cx: &mut App,
2076 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
2077 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
2078 let mut display_hunks = snapshot
2079 .display_diff_hunks_for_rows(display_rows, folded_buffers)
2080 .map(|hunk| (hunk, None))
2081 .collect::<Vec<_>>();
2082 let git_gutter_setting = ProjectSettings::get_global(cx)
2083 .git
2084 .git_gutter
2085 .unwrap_or_default();
2086 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
2087 for (hunk, hitbox) in &mut display_hunks {
2088 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
2089 let hunk_bounds =
2090 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
2091 *hitbox = Some(window.insert_hitbox(hunk_bounds, HitboxBehavior::BlockMouse));
2092 }
2093 }
2094 }
2095
2096 display_hunks
2097 }
2098
2099 fn layout_inline_diagnostics(
2100 &self,
2101 line_layouts: &[LineWithInvisibles],
2102 crease_trailers: &[Option<CreaseTrailerLayout>],
2103 row_block_types: &HashMap<DisplayRow, bool>,
2104 content_origin: gpui::Point<Pixels>,
2105 scroll_pixel_position: gpui::Point<Pixels>,
2106 edit_prediction_popover_origin: Option<gpui::Point<Pixels>>,
2107 start_row: DisplayRow,
2108 end_row: DisplayRow,
2109 line_height: Pixels,
2110 em_width: Pixels,
2111 style: &EditorStyle,
2112 window: &mut Window,
2113 cx: &mut App,
2114 ) -> HashMap<DisplayRow, AnyElement> {
2115 let max_severity = match self
2116 .editor
2117 .read(cx)
2118 .inline_diagnostics_enabled()
2119 .then(|| {
2120 ProjectSettings::get_global(cx)
2121 .diagnostics
2122 .inline
2123 .max_severity
2124 .unwrap_or_else(|| self.editor.read(cx).diagnostics_max_severity)
2125 .into_lsp()
2126 })
2127 .flatten()
2128 {
2129 Some(max_severity) => max_severity,
2130 None => return HashMap::default(),
2131 };
2132
2133 let active_diagnostics_group =
2134 if let ActiveDiagnostic::Group(group) = &self.editor.read(cx).active_diagnostics {
2135 Some(group.group_id)
2136 } else {
2137 None
2138 };
2139
2140 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
2141 let snapshot = editor.snapshot(window, cx);
2142 editor
2143 .inline_diagnostics
2144 .iter()
2145 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
2146 .filter(|(_, diagnostic)| match active_diagnostics_group {
2147 Some(active_diagnostics_group) => {
2148 // Active diagnostics are all shown in the editor already, no need to display them inline
2149 diagnostic.group_id != active_diagnostics_group
2150 }
2151 None => true,
2152 })
2153 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
2154 .skip_while(|(point, _)| point.row() < start_row)
2155 .take_while(|(point, _)| point.row() < end_row)
2156 .filter(|(point, _)| !row_block_types.contains_key(&point.row()))
2157 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
2158 acc.entry(point.row())
2159 .or_insert_with(Vec::new)
2160 .push(diagnostic);
2161 acc
2162 })
2163 });
2164
2165 if diagnostics_by_rows.is_empty() {
2166 return HashMap::default();
2167 }
2168
2169 let severity_to_color = |sev: &lsp::DiagnosticSeverity| match sev {
2170 &lsp::DiagnosticSeverity::ERROR => Color::Error,
2171 &lsp::DiagnosticSeverity::WARNING => Color::Warning,
2172 &lsp::DiagnosticSeverity::INFORMATION => Color::Info,
2173 &lsp::DiagnosticSeverity::HINT => Color::Hint,
2174 _ => Color::Error,
2175 };
2176
2177 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
2178 let min_x = ProjectSettings::get_global(cx)
2179 .diagnostics
2180 .inline
2181 .min_column as f32
2182 * em_width;
2183
2184 let mut elements = HashMap::default();
2185 for (row, mut diagnostics) in diagnostics_by_rows {
2186 diagnostics.sort_by_key(|diagnostic| {
2187 (
2188 diagnostic.severity,
2189 std::cmp::Reverse(diagnostic.is_primary),
2190 diagnostic.start.row,
2191 diagnostic.start.column,
2192 )
2193 });
2194
2195 let Some(diagnostic_to_render) = diagnostics
2196 .iter()
2197 .find(|diagnostic| diagnostic.is_primary)
2198 .or_else(|| diagnostics.first())
2199 else {
2200 continue;
2201 };
2202
2203 let pos_y = content_origin.y
2204 + line_height * (row.0 as f32 - scroll_pixel_position.y / line_height);
2205
2206 let window_ix = row.0.saturating_sub(start_row.0) as usize;
2207 let pos_x = {
2208 let crease_trailer_layout = &crease_trailers[window_ix];
2209 let line_layout = &line_layouts[window_ix];
2210
2211 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
2212 crease_trailer.bounds.right()
2213 } else {
2214 content_origin.x - scroll_pixel_position.x + line_layout.width
2215 };
2216
2217 let padded_line = line_end + padding;
2218 let min_start = content_origin.x - scroll_pixel_position.x + min_x;
2219
2220 cmp::max(padded_line, min_start)
2221 };
2222
2223 let behind_edit_prediction_popover = edit_prediction_popover_origin.as_ref().map_or(
2224 false,
2225 |edit_prediction_popover_origin| {
2226 (pos_y..pos_y + line_height).contains(&edit_prediction_popover_origin.y)
2227 },
2228 );
2229 let opacity = if behind_edit_prediction_popover {
2230 0.5
2231 } else {
2232 1.0
2233 };
2234
2235 let mut element = h_flex()
2236 .id(("diagnostic", row.0))
2237 .h(line_height)
2238 .w_full()
2239 .px_1()
2240 .rounded_xs()
2241 .opacity(opacity)
2242 .bg(severity_to_color(&diagnostic_to_render.severity)
2243 .color(cx)
2244 .opacity(0.05))
2245 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
2246 .text_sm()
2247 .font_family(style.text.font().family)
2248 .child(diagnostic_to_render.message.clone())
2249 .into_any();
2250
2251 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
2252
2253 elements.insert(row, element);
2254 }
2255
2256 elements
2257 }
2258
2259 fn layout_inline_code_actions(
2260 &self,
2261 display_point: DisplayPoint,
2262 content_origin: gpui::Point<Pixels>,
2263 scroll_pixel_position: gpui::Point<Pixels>,
2264 line_height: Pixels,
2265 snapshot: &EditorSnapshot,
2266 window: &mut Window,
2267 cx: &mut App,
2268 ) -> Option<AnyElement> {
2269 if !snapshot
2270 .show_code_actions
2271 .unwrap_or(EditorSettings::get_global(cx).inline_code_actions)
2272 {
2273 return None;
2274 }
2275
2276 let icon_size = ui::IconSize::XSmall;
2277 let mut button = self.editor.update(cx, |editor, cx| {
2278 editor.available_code_actions.as_ref()?;
2279 let active = editor
2280 .context_menu
2281 .borrow()
2282 .as_ref()
2283 .and_then(|menu| {
2284 if let crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2285 deployed_from,
2286 ..
2287 }) = menu
2288 {
2289 deployed_from.as_ref()
2290 } else {
2291 None
2292 }
2293 })
2294 .map_or(false, |source| {
2295 matches!(source, CodeActionSource::Indicator(..))
2296 });
2297 Some(editor.render_inline_code_actions(icon_size, display_point.row(), active, cx))
2298 })?;
2299
2300 let buffer_point = display_point.to_point(&snapshot.display_snapshot);
2301
2302 // do not show code action for folded line
2303 if snapshot.is_line_folded(MultiBufferRow(buffer_point.row)) {
2304 return None;
2305 }
2306
2307 // do not show code action for blank line with cursor
2308 let line_indent = snapshot
2309 .display_snapshot
2310 .buffer_snapshot
2311 .line_indent_for_row(MultiBufferRow(buffer_point.row));
2312 if line_indent.is_line_blank() {
2313 return None;
2314 }
2315
2316 const INLINE_SLOT_CHAR_LIMIT: u32 = 4;
2317 const MAX_ALTERNATE_DISTANCE: u32 = 8;
2318
2319 let excerpt_id = snapshot
2320 .display_snapshot
2321 .buffer_snapshot
2322 .excerpt_containing(buffer_point..buffer_point)
2323 .map(|excerpt| excerpt.id());
2324
2325 let is_valid_row = |row_candidate: u32| -> bool {
2326 // move to other row if folded row
2327 if snapshot.is_line_folded(MultiBufferRow(row_candidate)) {
2328 return false;
2329 }
2330 if buffer_point.row == row_candidate {
2331 // move to other row if cursor is in slot
2332 if buffer_point.column < INLINE_SLOT_CHAR_LIMIT {
2333 return false;
2334 }
2335 } else {
2336 let candidate_point = MultiBufferPoint {
2337 row: row_candidate,
2338 column: 0,
2339 };
2340 let candidate_excerpt_id = snapshot
2341 .display_snapshot
2342 .buffer_snapshot
2343 .excerpt_containing(candidate_point..candidate_point)
2344 .map(|excerpt| excerpt.id());
2345 // move to other row if different excerpt
2346 if excerpt_id != candidate_excerpt_id {
2347 return false;
2348 }
2349 }
2350 let line_indent = snapshot
2351 .display_snapshot
2352 .buffer_snapshot
2353 .line_indent_for_row(MultiBufferRow(row_candidate));
2354 // use this row if it's blank
2355 if line_indent.is_line_blank() {
2356 true
2357 } else {
2358 // use this row if code starts after slot
2359 let indent_size = snapshot
2360 .display_snapshot
2361 .buffer_snapshot
2362 .indent_size_for_line(MultiBufferRow(row_candidate));
2363 indent_size.len >= INLINE_SLOT_CHAR_LIMIT
2364 }
2365 };
2366
2367 let new_buffer_row = if is_valid_row(buffer_point.row) {
2368 Some(buffer_point.row)
2369 } else {
2370 let max_row = snapshot.display_snapshot.buffer_snapshot.max_point().row;
2371 (1..=MAX_ALTERNATE_DISTANCE).find_map(|offset| {
2372 let row_above = buffer_point.row.saturating_sub(offset);
2373 let row_below = buffer_point.row + offset;
2374 if row_above != buffer_point.row && is_valid_row(row_above) {
2375 Some(row_above)
2376 } else if row_below <= max_row && is_valid_row(row_below) {
2377 Some(row_below)
2378 } else {
2379 None
2380 }
2381 })
2382 }?;
2383
2384 let new_display_row = snapshot
2385 .display_snapshot
2386 .point_to_display_point(
2387 Point {
2388 row: new_buffer_row,
2389 column: buffer_point.column,
2390 },
2391 text::Bias::Left,
2392 )
2393 .row();
2394
2395 let start_y = content_origin.y
2396 + ((new_display_row.as_f32() - (scroll_pixel_position.y / line_height)) * line_height)
2397 + (line_height / 2.0)
2398 - (icon_size.square(window, cx) / 2.);
2399 let start_x = content_origin.x - scroll_pixel_position.x + (window.rem_size() * 0.1);
2400
2401 let absolute_offset = gpui::point(start_x, start_y);
2402 button.layout_as_root(gpui::AvailableSpace::min_size(), window, cx);
2403 button.prepaint_as_root(
2404 absolute_offset,
2405 gpui::AvailableSpace::min_size(),
2406 window,
2407 cx,
2408 );
2409 Some(button)
2410 }
2411
2412 fn layout_inline_blame(
2413 &self,
2414 display_row: DisplayRow,
2415 row_info: &RowInfo,
2416 line_layout: &LineWithInvisibles,
2417 crease_trailer: Option<&CreaseTrailerLayout>,
2418 em_width: Pixels,
2419 content_origin: gpui::Point<Pixels>,
2420 scroll_pixel_position: gpui::Point<Pixels>,
2421 line_height: Pixels,
2422 text_hitbox: &Hitbox,
2423 window: &mut Window,
2424 cx: &mut App,
2425 ) -> Option<InlineBlameLayout> {
2426 if !self
2427 .editor
2428 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
2429 {
2430 return None;
2431 }
2432
2433 let editor = self.editor.read(cx);
2434 let blame = editor.blame.clone()?;
2435 let padding = {
2436 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
2437
2438 let mut padding = ProjectSettings::get_global(cx)
2439 .git
2440 .inline_blame
2441 .unwrap_or_default()
2442 .padding as f32;
2443
2444 if let Some(edit_prediction) = editor.active_edit_prediction.as_ref() {
2445 match &edit_prediction.completion {
2446 EditPrediction::Edit {
2447 display_mode: EditDisplayMode::TabAccept,
2448 ..
2449 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
2450 _ => {}
2451 }
2452 }
2453
2454 padding * em_width
2455 };
2456
2457 let entry = blame
2458 .update(cx, |blame, cx| {
2459 blame.blame_for_rows(&[*row_info], cx).next()
2460 })
2461 .flatten()?;
2462
2463 let mut element = render_inline_blame_entry(entry.clone(), &self.style, cx)?;
2464
2465 let start_y = content_origin.y
2466 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
2467
2468 let start_x = {
2469 let line_end = if let Some(crease_trailer) = crease_trailer {
2470 crease_trailer.bounds.right()
2471 } else {
2472 content_origin.x - scroll_pixel_position.x + line_layout.width
2473 };
2474
2475 let padded_line_end = line_end + padding;
2476
2477 let min_column_in_pixels = ProjectSettings::get_global(cx)
2478 .git
2479 .inline_blame
2480 .map(|settings| settings.min_column)
2481 .map(|col| self.column_pixels(col as usize, window))
2482 .unwrap_or(px(0.));
2483 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
2484
2485 cmp::max(padded_line_end, min_start)
2486 };
2487
2488 let absolute_offset = point(start_x, start_y);
2489 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2490 let bounds = Bounds::new(absolute_offset, size);
2491
2492 self.layout_blame_entry_popover(entry.clone(), blame, line_height, text_hitbox, window, cx);
2493
2494 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
2495
2496 Some(InlineBlameLayout {
2497 element,
2498 bounds,
2499 entry,
2500 })
2501 }
2502
2503 fn layout_blame_entry_popover(
2504 &self,
2505 blame_entry: BlameEntry,
2506 blame: Entity<GitBlame>,
2507 line_height: Pixels,
2508 text_hitbox: &Hitbox,
2509 window: &mut Window,
2510 cx: &mut App,
2511 ) {
2512 let Some((popover_state, target_point)) = self.editor.read_with(cx, |editor, _| {
2513 editor
2514 .inline_blame_popover
2515 .as_ref()
2516 .map(|state| (state.popover_state.clone(), state.position))
2517 }) else {
2518 return;
2519 };
2520
2521 let workspace = self
2522 .editor
2523 .read_with(cx, |editor, _| editor.workspace().map(|w| w.downgrade()));
2524
2525 let maybe_element = workspace.and_then(|workspace| {
2526 render_blame_entry_popover(
2527 blame_entry,
2528 popover_state.scroll_handle,
2529 popover_state.commit_message,
2530 popover_state.markdown,
2531 workspace,
2532 &blame,
2533 window,
2534 cx,
2535 )
2536 });
2537
2538 if let Some(mut element) = maybe_element {
2539 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2540 let overall_height = size.height + HOVER_POPOVER_GAP;
2541 let popover_origin = if target_point.y > overall_height {
2542 point(target_point.x, target_point.y - size.height)
2543 } else {
2544 point(
2545 target_point.x,
2546 target_point.y + line_height + HOVER_POPOVER_GAP,
2547 )
2548 };
2549
2550 let horizontal_offset = (text_hitbox.top_right().x
2551 - POPOVER_RIGHT_OFFSET
2552 - (popover_origin.x + size.width))
2553 .min(Pixels::ZERO);
2554
2555 let origin = point(popover_origin.x + horizontal_offset, popover_origin.y);
2556 let popover_bounds = Bounds::new(origin, size);
2557
2558 self.editor.update(cx, |editor, _| {
2559 if let Some(state) = &mut editor.inline_blame_popover {
2560 state.popover_bounds = Some(popover_bounds);
2561 }
2562 });
2563
2564 window.defer_draw(element, origin, 2);
2565 }
2566 }
2567
2568 fn layout_blame_entries(
2569 &self,
2570 buffer_rows: &[RowInfo],
2571 em_width: Pixels,
2572 scroll_position: gpui::Point<f32>,
2573 line_height: Pixels,
2574 gutter_hitbox: &Hitbox,
2575 max_width: Option<Pixels>,
2576 window: &mut Window,
2577 cx: &mut App,
2578 ) -> Option<Vec<AnyElement>> {
2579 if !self
2580 .editor
2581 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
2582 {
2583 return None;
2584 }
2585
2586 let blame = self.editor.read(cx).blame.clone()?;
2587 let workspace = self.editor.read(cx).workspace()?;
2588 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
2589 blame.blame_for_rows(buffer_rows, cx).collect()
2590 });
2591
2592 let width = if let Some(max_width) = max_width {
2593 AvailableSpace::Definite(max_width)
2594 } else {
2595 AvailableSpace::MaxContent
2596 };
2597 let scroll_top = scroll_position.y * line_height;
2598 let start_x = em_width;
2599
2600 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
2601 let blame_renderer = cx.global::<GlobalBlameRenderer>().0.clone();
2602
2603 let shaped_lines = blamed_rows
2604 .into_iter()
2605 .enumerate()
2606 .flat_map(|(ix, blame_entry)| {
2607 let mut element = render_blame_entry(
2608 ix,
2609 &blame,
2610 blame_entry?,
2611 &self.style,
2612 &mut last_used_color,
2613 self.editor.clone(),
2614 workspace.clone(),
2615 blame_renderer.clone(),
2616 cx,
2617 )?;
2618
2619 let start_y = ix as f32 * line_height - (scroll_top % line_height);
2620 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
2621
2622 element.prepaint_as_root(
2623 absolute_offset,
2624 size(width, AvailableSpace::MinContent),
2625 window,
2626 cx,
2627 );
2628
2629 Some(element)
2630 })
2631 .collect();
2632
2633 Some(shaped_lines)
2634 }
2635
2636 fn layout_indent_guides(
2637 &self,
2638 content_origin: gpui::Point<Pixels>,
2639 text_origin: gpui::Point<Pixels>,
2640 visible_buffer_range: Range<MultiBufferRow>,
2641 scroll_pixel_position: gpui::Point<Pixels>,
2642 line_height: Pixels,
2643 snapshot: &DisplaySnapshot,
2644 window: &mut Window,
2645 cx: &mut App,
2646 ) -> Option<Vec<IndentGuideLayout>> {
2647 let indent_guides = self.editor.update(cx, |editor, cx| {
2648 editor.indent_guides(visible_buffer_range, snapshot, cx)
2649 })?;
2650
2651 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
2652 editor
2653 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
2654 .unwrap_or_default()
2655 });
2656
2657 Some(
2658 indent_guides
2659 .into_iter()
2660 .enumerate()
2661 .filter_map(|(i, indent_guide)| {
2662 let single_indent_width =
2663 self.column_pixels(indent_guide.tab_size as usize, window);
2664 let total_width = single_indent_width * indent_guide.depth as f32;
2665 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
2666 if start_x >= text_origin.x {
2667 let (offset_y, length) = Self::calculate_indent_guide_bounds(
2668 indent_guide.start_row..indent_guide.end_row,
2669 line_height,
2670 snapshot,
2671 );
2672
2673 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
2674
2675 Some(IndentGuideLayout {
2676 origin: point(start_x, start_y),
2677 length,
2678 single_indent_width,
2679 depth: indent_guide.depth,
2680 active: active_indent_guide_indices.contains(&i),
2681 settings: indent_guide.settings,
2682 })
2683 } else {
2684 None
2685 }
2686 })
2687 .collect(),
2688 )
2689 }
2690
2691 fn layout_wrap_guides(
2692 &self,
2693 em_advance: Pixels,
2694 scroll_position: gpui::Point<f32>,
2695 content_origin: gpui::Point<Pixels>,
2696 scrollbar_layout: Option<&EditorScrollbars>,
2697 vertical_scrollbar_width: Pixels,
2698 hitbox: &Hitbox,
2699 window: &Window,
2700 cx: &App,
2701 ) -> SmallVec<[(Pixels, bool); 2]> {
2702 let scroll_left = scroll_position.x * em_advance;
2703 let content_origin = content_origin.x;
2704 let horizontal_offset = content_origin - scroll_left;
2705 let vertical_scrollbar_width = scrollbar_layout
2706 .and_then(|layout| layout.visible.then_some(vertical_scrollbar_width))
2707 .unwrap_or_default();
2708
2709 self.editor
2710 .read(cx)
2711 .wrap_guides(cx)
2712 .into_iter()
2713 .flat_map(|(guide, active)| {
2714 let wrap_position = self.column_pixels(guide, window);
2715 let wrap_guide_x = wrap_position + horizontal_offset;
2716 let display_wrap_guide = wrap_guide_x >= content_origin
2717 && wrap_guide_x <= hitbox.bounds.right() - vertical_scrollbar_width;
2718
2719 display_wrap_guide.then_some((wrap_guide_x, active))
2720 })
2721 .collect()
2722 }
2723
2724 fn calculate_indent_guide_bounds(
2725 row_range: Range<MultiBufferRow>,
2726 line_height: Pixels,
2727 snapshot: &DisplaySnapshot,
2728 ) -> (gpui::Pixels, gpui::Pixels) {
2729 let start_point = Point::new(row_range.start.0, 0);
2730 let end_point = Point::new(row_range.end.0, 0);
2731
2732 let row_range = start_point.to_display_point(snapshot).row()
2733 ..end_point.to_display_point(snapshot).row();
2734
2735 let mut prev_line = start_point;
2736 prev_line.row = prev_line.row.saturating_sub(1);
2737 let prev_line = prev_line.to_display_point(snapshot).row();
2738
2739 let mut cons_line = end_point;
2740 cons_line.row += 1;
2741 let cons_line = cons_line.to_display_point(snapshot).row();
2742
2743 let mut offset_y = row_range.start.0 as f32 * line_height;
2744 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
2745
2746 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
2747 if row_range.end == cons_line {
2748 length += line_height;
2749 }
2750
2751 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
2752 // we want to extend the indent guide to the start of the block.
2753 let mut block_height = 0;
2754 let mut block_offset = 0;
2755 let mut found_excerpt_header = false;
2756 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
2757 if matches!(block, Block::ExcerptBoundary { .. }) {
2758 found_excerpt_header = true;
2759 break;
2760 }
2761 block_offset += block.height();
2762 block_height += block.height();
2763 }
2764 if !found_excerpt_header {
2765 offset_y -= block_offset as f32 * line_height;
2766 length += block_height as f32 * line_height;
2767 }
2768
2769 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
2770 // we want to ensure that the indent guide stops before the excerpt header.
2771 let mut block_height = 0;
2772 let mut found_excerpt_header = false;
2773 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
2774 if matches!(block, Block::ExcerptBoundary { .. }) {
2775 found_excerpt_header = true;
2776 }
2777 block_height += block.height();
2778 }
2779 if found_excerpt_header {
2780 length -= block_height as f32 * line_height;
2781 }
2782
2783 (offset_y, length)
2784 }
2785
2786 fn layout_breakpoints(
2787 &self,
2788 line_height: Pixels,
2789 range: Range<DisplayRow>,
2790 scroll_pixel_position: gpui::Point<Pixels>,
2791 gutter_dimensions: &GutterDimensions,
2792 gutter_hitbox: &Hitbox,
2793 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2794 snapshot: &EditorSnapshot,
2795 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
2796 row_infos: &[RowInfo],
2797 window: &mut Window,
2798 cx: &mut App,
2799 ) -> Vec<AnyElement> {
2800 self.editor.update(cx, |editor, cx| {
2801 breakpoints
2802 .into_iter()
2803 .filter_map(|(display_row, (text_anchor, bp, state))| {
2804 if row_infos
2805 .get((display_row.0.saturating_sub(range.start.0)) as usize)
2806 .is_some_and(|row_info| {
2807 row_info.expand_info.is_some()
2808 || row_info
2809 .diff_status
2810 .is_some_and(|status| status.is_deleted())
2811 })
2812 {
2813 return None;
2814 }
2815
2816 if range.start > display_row || range.end < display_row {
2817 return None;
2818 }
2819
2820 let row =
2821 MultiBufferRow(DisplayPoint::new(display_row, 0).to_point(&snapshot).row);
2822 if snapshot.is_line_folded(row) {
2823 return None;
2824 }
2825
2826 let button = editor.render_breakpoint(text_anchor, display_row, &bp, state, cx);
2827
2828 let button = prepaint_gutter_button(
2829 button,
2830 display_row,
2831 line_height,
2832 gutter_dimensions,
2833 scroll_pixel_position,
2834 gutter_hitbox,
2835 display_hunks,
2836 window,
2837 cx,
2838 );
2839 Some(button)
2840 })
2841 .collect_vec()
2842 })
2843 }
2844
2845 #[allow(clippy::too_many_arguments)]
2846 fn layout_run_indicators(
2847 &self,
2848 line_height: Pixels,
2849 range: Range<DisplayRow>,
2850 row_infos: &[RowInfo],
2851 scroll_pixel_position: gpui::Point<Pixels>,
2852 gutter_dimensions: &GutterDimensions,
2853 gutter_hitbox: &Hitbox,
2854 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2855 snapshot: &EditorSnapshot,
2856 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
2857 window: &mut Window,
2858 cx: &mut App,
2859 ) -> Vec<AnyElement> {
2860 self.editor.update(cx, |editor, cx| {
2861 let active_task_indicator_row =
2862 // TODO: add edit button on the right side of each row in the context menu
2863 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2864 deployed_from,
2865 actions,
2866 ..
2867 })) = editor.context_menu.borrow().as_ref()
2868 {
2869 actions
2870 .tasks()
2871 .map(|tasks| tasks.position.to_display_point(snapshot).row())
2872 .or_else(|| match deployed_from {
2873 Some(CodeActionSource::Indicator(row)) => Some(*row),
2874 _ => None,
2875 })
2876 } else {
2877 None
2878 };
2879
2880 let offset_range_start =
2881 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
2882
2883 let offset_range_end =
2884 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
2885
2886 editor
2887 .tasks
2888 .iter()
2889 .filter_map(|(_, tasks)| {
2890 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot);
2891 if multibuffer_point < offset_range_start
2892 || multibuffer_point > offset_range_end
2893 {
2894 return None;
2895 }
2896 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
2897 let buffer_folded = snapshot
2898 .buffer_snapshot
2899 .buffer_line_for_row(multibuffer_row)
2900 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
2901 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
2902 .unwrap_or(false);
2903 if buffer_folded {
2904 return None;
2905 }
2906
2907 if snapshot.is_line_folded(multibuffer_row) {
2908 // Skip folded indicators, unless it's the starting line of a fold.
2909 if multibuffer_row
2910 .0
2911 .checked_sub(1)
2912 .map_or(false, |previous_row| {
2913 snapshot.is_line_folded(MultiBufferRow(previous_row))
2914 })
2915 {
2916 return None;
2917 }
2918 }
2919
2920 let display_row = multibuffer_point.to_display_point(snapshot).row();
2921 if !range.contains(&display_row) {
2922 return None;
2923 }
2924 if row_infos
2925 .get((display_row - range.start).0 as usize)
2926 .is_some_and(|row_info| row_info.expand_info.is_some())
2927 {
2928 return None;
2929 }
2930
2931 let button = editor.render_run_indicator(
2932 &self.style,
2933 Some(display_row) == active_task_indicator_row,
2934 display_row,
2935 breakpoints.remove(&display_row),
2936 cx,
2937 );
2938
2939 let button = prepaint_gutter_button(
2940 button,
2941 display_row,
2942 line_height,
2943 gutter_dimensions,
2944 scroll_pixel_position,
2945 gutter_hitbox,
2946 display_hunks,
2947 window,
2948 cx,
2949 );
2950 Some(button)
2951 })
2952 .collect_vec()
2953 })
2954 }
2955
2956 fn layout_expand_toggles(
2957 &self,
2958 gutter_hitbox: &Hitbox,
2959 gutter_dimensions: GutterDimensions,
2960 em_width: Pixels,
2961 line_height: Pixels,
2962 scroll_position: gpui::Point<f32>,
2963 buffer_rows: &[RowInfo],
2964 window: &mut Window,
2965 cx: &mut App,
2966 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
2967 if self.editor.read(cx).disable_expand_excerpt_buttons {
2968 return vec![];
2969 }
2970
2971 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
2972
2973 let scroll_top = scroll_position.y * line_height;
2974
2975 let max_line_number_length = self
2976 .editor
2977 .read(cx)
2978 .buffer()
2979 .read(cx)
2980 .snapshot(cx)
2981 .widest_line_number()
2982 .ilog10()
2983 + 1;
2984
2985 let elements = buffer_rows
2986 .into_iter()
2987 .enumerate()
2988 .map(|(ix, row_info)| {
2989 let ExpandInfo {
2990 excerpt_id,
2991 direction,
2992 } = row_info.expand_info?;
2993
2994 let icon_name = match direction {
2995 ExpandExcerptDirection::Up => IconName::ExpandUp,
2996 ExpandExcerptDirection::Down => IconName::ExpandDown,
2997 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
2998 };
2999
3000 let git_gutter_width = Self::gutter_strip_width(line_height);
3001 let available_width = gutter_dimensions.left_padding - git_gutter_width;
3002
3003 let editor = self.editor.clone();
3004 let is_wide = max_line_number_length
3005 >= EditorSettings::get_global(cx).gutter.min_line_number_digits as u32
3006 && row_info
3007 .buffer_row
3008 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
3009 || gutter_dimensions.right_padding == px(0.);
3010
3011 let width = if is_wide {
3012 available_width - px(2.)
3013 } else {
3014 available_width + em_width - px(2.)
3015 };
3016
3017 let toggle = IconButton::new(("expand", ix), icon_name)
3018 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
3019 .selected_icon_color(Color::Custom(cx.theme().colors().editor_foreground))
3020 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
3021 .width(width)
3022 .on_click(move |_, window, cx| {
3023 editor.update(cx, |editor, cx| {
3024 editor.expand_excerpt(excerpt_id, direction, window, cx);
3025 });
3026 })
3027 .tooltip(Tooltip::for_action_title(
3028 "Expand Excerpt",
3029 &crate::actions::ExpandExcerpts::default(),
3030 ))
3031 .into_any_element();
3032
3033 let position = point(
3034 git_gutter_width + px(1.),
3035 ix as f32 * line_height - (scroll_top % line_height) + px(1.),
3036 );
3037 let origin = gutter_hitbox.origin + position;
3038
3039 Some((toggle, origin))
3040 })
3041 .collect();
3042
3043 elements
3044 }
3045
3046 fn calculate_relative_line_numbers(
3047 &self,
3048 snapshot: &EditorSnapshot,
3049 rows: &Range<DisplayRow>,
3050 relative_to: Option<DisplayRow>,
3051 ) -> HashMap<DisplayRow, DisplayRowDelta> {
3052 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
3053 let Some(relative_to) = relative_to else {
3054 return relative_rows;
3055 };
3056
3057 let start = rows.start.min(relative_to);
3058 let end = rows.end.max(relative_to);
3059
3060 let buffer_rows = snapshot
3061 .row_infos(start)
3062 .take(1 + end.minus(start) as usize)
3063 .collect::<Vec<_>>();
3064
3065 let head_idx = relative_to.minus(start);
3066 let mut delta = 1;
3067 let mut i = head_idx + 1;
3068 while i < buffer_rows.len() as u32 {
3069 if buffer_rows[i as usize].buffer_row.is_some() {
3070 if rows.contains(&DisplayRow(i + start.0)) {
3071 relative_rows.insert(DisplayRow(i + start.0), delta);
3072 }
3073 delta += 1;
3074 }
3075 i += 1;
3076 }
3077 delta = 1;
3078 i = head_idx.min(buffer_rows.len() as u32 - 1);
3079 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
3080 i -= 1;
3081 }
3082
3083 while i > 0 {
3084 i -= 1;
3085 if buffer_rows[i as usize].buffer_row.is_some() {
3086 if rows.contains(&DisplayRow(i + start.0)) {
3087 relative_rows.insert(DisplayRow(i + start.0), delta);
3088 }
3089 delta += 1;
3090 }
3091 }
3092
3093 relative_rows
3094 }
3095
3096 fn layout_line_numbers(
3097 &self,
3098 gutter_hitbox: Option<&Hitbox>,
3099 gutter_dimensions: GutterDimensions,
3100 line_height: Pixels,
3101 scroll_position: gpui::Point<f32>,
3102 rows: Range<DisplayRow>,
3103 buffer_rows: &[RowInfo],
3104 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3105 newest_selection_head: Option<DisplayPoint>,
3106 snapshot: &EditorSnapshot,
3107 window: &mut Window,
3108 cx: &mut App,
3109 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
3110 let include_line_numbers = snapshot
3111 .show_line_numbers
3112 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
3113 if !include_line_numbers {
3114 return Arc::default();
3115 }
3116
3117 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
3118 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
3119 let newest = editor.selections.newest::<Point>(cx);
3120 SelectionLayout::new(
3121 newest,
3122 editor.selections.line_mode,
3123 editor.cursor_shape,
3124 &snapshot.display_snapshot,
3125 true,
3126 true,
3127 None,
3128 )
3129 .head
3130 });
3131 let is_relative = editor.should_use_relative_line_numbers(cx);
3132 (newest_selection_head, is_relative)
3133 });
3134
3135 let relative_to = if is_relative {
3136 Some(newest_selection_head.row())
3137 } else {
3138 None
3139 };
3140 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
3141 let mut line_number = String::new();
3142 let line_numbers = buffer_rows
3143 .into_iter()
3144 .enumerate()
3145 .flat_map(|(ix, row_info)| {
3146 let display_row = DisplayRow(rows.start.0 + ix as u32);
3147 line_number.clear();
3148 let non_relative_number = row_info.buffer_row? + 1;
3149 let number = relative_rows
3150 .get(&display_row)
3151 .unwrap_or(&non_relative_number);
3152 write!(&mut line_number, "{number}").unwrap();
3153 if row_info
3154 .diff_status
3155 .is_some_and(|status| status.is_deleted())
3156 {
3157 return None;
3158 }
3159
3160 let color = active_rows
3161 .get(&display_row)
3162 .map(|spec| {
3163 if spec.breakpoint {
3164 cx.theme().colors().debugger_accent
3165 } else {
3166 cx.theme().colors().editor_active_line_number
3167 }
3168 })
3169 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
3170 let shaped_line =
3171 self.shape_line_number(SharedString::from(&line_number), color, window);
3172 let scroll_top = scroll_position.y * line_height;
3173 let line_origin = gutter_hitbox.map(|hitbox| {
3174 hitbox.origin
3175 + point(
3176 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
3177 ix as f32 * line_height - (scroll_top % line_height),
3178 )
3179 });
3180
3181 #[cfg(not(test))]
3182 let hitbox = line_origin.map(|line_origin| {
3183 window.insert_hitbox(
3184 Bounds::new(line_origin, size(shaped_line.width, line_height)),
3185 HitboxBehavior::Normal,
3186 )
3187 });
3188 #[cfg(test)]
3189 let hitbox = {
3190 let _ = line_origin;
3191 None
3192 };
3193
3194 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
3195 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
3196 let line_number = LineNumberLayout {
3197 shaped_line,
3198 hitbox,
3199 };
3200 Some((multi_buffer_row, line_number))
3201 })
3202 .collect();
3203 Arc::new(line_numbers)
3204 }
3205
3206 fn layout_crease_toggles(
3207 &self,
3208 rows: Range<DisplayRow>,
3209 row_infos: &[RowInfo],
3210 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3211 snapshot: &EditorSnapshot,
3212 window: &mut Window,
3213 cx: &mut App,
3214 ) -> Vec<Option<AnyElement>> {
3215 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
3216 && snapshot.mode.is_full()
3217 && self.editor.read(cx).is_singleton(cx);
3218 if include_fold_statuses {
3219 row_infos
3220 .into_iter()
3221 .enumerate()
3222 .map(|(ix, info)| {
3223 if info.expand_info.is_some() {
3224 return None;
3225 }
3226 let row = info.multibuffer_row?;
3227 let display_row = DisplayRow(rows.start.0 + ix as u32);
3228 let active = active_rows.contains_key(&display_row);
3229
3230 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
3231 })
3232 .collect()
3233 } else {
3234 Vec::new()
3235 }
3236 }
3237
3238 fn layout_crease_trailers(
3239 &self,
3240 buffer_rows: impl IntoIterator<Item = RowInfo>,
3241 snapshot: &EditorSnapshot,
3242 window: &mut Window,
3243 cx: &mut App,
3244 ) -> Vec<Option<AnyElement>> {
3245 buffer_rows
3246 .into_iter()
3247 .map(|row_info| {
3248 if row_info.expand_info.is_some() {
3249 return None;
3250 }
3251 if let Some(row) = row_info.multibuffer_row {
3252 snapshot.render_crease_trailer(row, window, cx)
3253 } else {
3254 None
3255 }
3256 })
3257 .collect()
3258 }
3259
3260 fn layout_lines(
3261 rows: Range<DisplayRow>,
3262 snapshot: &EditorSnapshot,
3263 style: &EditorStyle,
3264 editor_width: Pixels,
3265 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3266 window: &mut Window,
3267 cx: &mut App,
3268 ) -> Vec<LineWithInvisibles> {
3269 if rows.start >= rows.end {
3270 return Vec::new();
3271 }
3272
3273 // Show the placeholder when the editor is empty
3274 if snapshot.is_empty() {
3275 let font_size = style.text.font_size.to_pixels(window.rem_size());
3276 let placeholder_color = cx.theme().colors().text_placeholder;
3277 let placeholder_text = snapshot.placeholder_text();
3278
3279 let placeholder_lines = placeholder_text
3280 .as_ref()
3281 .map_or("", AsRef::as_ref)
3282 .split('\n')
3283 .skip(rows.start.0 as usize)
3284 .chain(iter::repeat(""))
3285 .take(rows.len());
3286 placeholder_lines
3287 .map(move |line| {
3288 let run = TextRun {
3289 len: line.len(),
3290 font: style.text.font(),
3291 color: placeholder_color,
3292 background_color: None,
3293 underline: None,
3294 strikethrough: None,
3295 };
3296 let line = window.text_system().shape_line(
3297 line.to_string().into(),
3298 font_size,
3299 &[run],
3300 None,
3301 );
3302 LineWithInvisibles {
3303 width: line.width,
3304 len: line.len,
3305 fragments: smallvec![LineFragment::Text(line)],
3306 invisibles: Vec::new(),
3307 font_size,
3308 }
3309 })
3310 .collect()
3311 } else {
3312 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
3313 LineWithInvisibles::from_chunks(
3314 chunks,
3315 &style,
3316 MAX_LINE_LEN,
3317 rows.len(),
3318 &snapshot.mode,
3319 editor_width,
3320 is_row_soft_wrapped,
3321 window,
3322 cx,
3323 )
3324 }
3325 }
3326
3327 fn prepaint_lines(
3328 &self,
3329 start_row: DisplayRow,
3330 line_layouts: &mut [LineWithInvisibles],
3331 line_height: Pixels,
3332 scroll_pixel_position: gpui::Point<Pixels>,
3333 content_origin: gpui::Point<Pixels>,
3334 window: &mut Window,
3335 cx: &mut App,
3336 ) -> SmallVec<[AnyElement; 1]> {
3337 let mut line_elements = SmallVec::new();
3338 for (ix, line) in line_layouts.iter_mut().enumerate() {
3339 let row = start_row + DisplayRow(ix as u32);
3340 line.prepaint(
3341 line_height,
3342 scroll_pixel_position,
3343 row,
3344 content_origin,
3345 &mut line_elements,
3346 window,
3347 cx,
3348 );
3349 }
3350 line_elements
3351 }
3352
3353 fn render_block(
3354 &self,
3355 block: &Block,
3356 available_width: AvailableSpace,
3357 block_id: BlockId,
3358 block_row_start: DisplayRow,
3359 snapshot: &EditorSnapshot,
3360 text_x: Pixels,
3361 rows: &Range<DisplayRow>,
3362 line_layouts: &[LineWithInvisibles],
3363 editor_margins: &EditorMargins,
3364 line_height: Pixels,
3365 em_width: Pixels,
3366 text_hitbox: &Hitbox,
3367 editor_width: Pixels,
3368 scroll_width: &mut Pixels,
3369 resized_blocks: &mut HashMap<CustomBlockId, u32>,
3370 row_block_types: &mut HashMap<DisplayRow, bool>,
3371 selections: &[Selection<Point>],
3372 selected_buffer_ids: &Vec<BufferId>,
3373 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3374 sticky_header_excerpt_id: Option<ExcerptId>,
3375 window: &mut Window,
3376 cx: &mut App,
3377 ) -> Option<(AnyElement, Size<Pixels>, DisplayRow, Pixels)> {
3378 let mut x_position = None;
3379 let mut element = match block {
3380 Block::Custom(custom) => {
3381 let block_start = custom.start().to_point(&snapshot.buffer_snapshot);
3382 let block_end = custom.end().to_point(&snapshot.buffer_snapshot);
3383 if block.place_near() && snapshot.is_line_folded(MultiBufferRow(block_start.row)) {
3384 return None;
3385 }
3386 let align_to = block_start.to_display_point(snapshot);
3387 let x_and_width = |layout: &LineWithInvisibles| {
3388 Some((
3389 text_x + layout.x_for_index(align_to.column() as usize),
3390 text_x + layout.width,
3391 ))
3392 };
3393 let line_ix = align_to.row().0.checked_sub(rows.start.0);
3394 x_position =
3395 if let Some(layout) = line_ix.and_then(|ix| line_layouts.get(ix as usize)) {
3396 x_and_width(&layout)
3397 } else {
3398 x_and_width(&layout_line(
3399 align_to.row(),
3400 snapshot,
3401 &self.style,
3402 editor_width,
3403 is_row_soft_wrapped,
3404 window,
3405 cx,
3406 ))
3407 };
3408
3409 let anchor_x = x_position.unwrap().0;
3410
3411 let selected = selections
3412 .binary_search_by(|selection| {
3413 if selection.end <= block_start {
3414 Ordering::Less
3415 } else if selection.start >= block_end {
3416 Ordering::Greater
3417 } else {
3418 Ordering::Equal
3419 }
3420 })
3421 .is_ok();
3422
3423 div()
3424 .size_full()
3425 .child(custom.render(&mut BlockContext {
3426 window,
3427 app: cx,
3428 anchor_x,
3429 margins: editor_margins,
3430 line_height,
3431 em_width,
3432 block_id,
3433 selected,
3434 max_width: text_hitbox.size.width.max(*scroll_width),
3435 editor_style: &self.style,
3436 }))
3437 .into_any()
3438 }
3439
3440 Block::FoldedBuffer {
3441 first_excerpt,
3442 height,
3443 ..
3444 } => {
3445 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
3446 let result = v_flex().id(block_id).w_full().pr(editor_margins.right);
3447
3448 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
3449 result
3450 .child(self.render_buffer_header(
3451 first_excerpt,
3452 true,
3453 selected,
3454 false,
3455 jump_data,
3456 window,
3457 cx,
3458 ))
3459 .into_any_element()
3460 }
3461
3462 Block::ExcerptBoundary {
3463 excerpt,
3464 height,
3465 starts_new_buffer,
3466 ..
3467 } => {
3468 let color = cx.theme().colors().clone();
3469 let mut result = v_flex().id(block_id).w_full();
3470
3471 let jump_data = header_jump_data(snapshot, block_row_start, *height, excerpt);
3472
3473 if *starts_new_buffer {
3474 if sticky_header_excerpt_id != Some(excerpt.id) {
3475 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3476
3477 result = result.child(div().pr(editor_margins.right).child(
3478 self.render_buffer_header(
3479 excerpt, false, selected, false, jump_data, window, cx,
3480 ),
3481 ));
3482 } else {
3483 result =
3484 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
3485 }
3486 } else {
3487 result = result.child(
3488 h_flex().relative().child(
3489 div()
3490 .top(line_height / 2.)
3491 .absolute()
3492 .w_full()
3493 .h_px()
3494 .bg(color.border_variant),
3495 ),
3496 );
3497 };
3498
3499 result.into_any()
3500 }
3501 };
3502
3503 // Discover the element's content height, then round up to the nearest multiple of line height.
3504 let preliminary_size = element.layout_as_root(
3505 size(available_width, AvailableSpace::MinContent),
3506 window,
3507 cx,
3508 );
3509 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
3510 let final_size = if preliminary_size.height == quantized_height {
3511 preliminary_size
3512 } else {
3513 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
3514 };
3515 let mut element_height_in_lines = ((final_size.height / line_height).ceil() as u32).max(1);
3516
3517 let mut row = block_row_start;
3518 let mut x_offset = px(0.);
3519 let mut is_block = true;
3520
3521 if let BlockId::Custom(custom_block_id) = block_id {
3522 if block.has_height() {
3523 if block.place_near() {
3524 if let Some((x_target, line_width)) = x_position {
3525 let margin = em_width * 2;
3526 if line_width + final_size.width + margin
3527 < editor_width + editor_margins.gutter.full_width()
3528 && !row_block_types.contains_key(&(row - 1))
3529 && element_height_in_lines == 1
3530 {
3531 x_offset = line_width + margin;
3532 row = row - 1;
3533 is_block = false;
3534 element_height_in_lines = 0;
3535 row_block_types.insert(row, is_block);
3536 } else {
3537 let max_offset = editor_width + editor_margins.gutter.full_width()
3538 - final_size.width;
3539 let min_offset = (x_target + em_width - final_size.width)
3540 .max(editor_margins.gutter.full_width());
3541 x_offset = x_target.min(max_offset).max(min_offset);
3542 }
3543 }
3544 };
3545 if element_height_in_lines != block.height() {
3546 resized_blocks.insert(custom_block_id, element_height_in_lines);
3547 }
3548 }
3549 }
3550 for i in 0..element_height_in_lines {
3551 row_block_types.insert(row + i, is_block);
3552 }
3553
3554 Some((element, final_size, row, x_offset))
3555 }
3556
3557 fn render_buffer_header(
3558 &self,
3559 for_excerpt: &ExcerptInfo,
3560 is_folded: bool,
3561 is_selected: bool,
3562 is_sticky: bool,
3563 jump_data: JumpData,
3564 window: &mut Window,
3565 cx: &mut App,
3566 ) -> impl IntoElement {
3567 let editor = self.editor.read(cx);
3568 let file_status = editor
3569 .buffer
3570 .read(cx)
3571 .all_diff_hunks_expanded()
3572 .then(|| {
3573 editor
3574 .project
3575 .as_ref()?
3576 .read(cx)
3577 .status_for_buffer_id(for_excerpt.buffer_id, cx)
3578 })
3579 .flatten();
3580
3581 let include_root = editor
3582 .project
3583 .as_ref()
3584 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
3585 .unwrap_or_default();
3586 let can_open_excerpts = Editor::can_open_excerpts_in_file(for_excerpt.buffer.file());
3587 let relative_path = for_excerpt.buffer.resolve_file_path(cx, include_root);
3588 let filename = relative_path
3589 .as_ref()
3590 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
3591 let parent_path = relative_path.as_ref().and_then(|path| {
3592 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
3593 });
3594 let focus_handle = editor.focus_handle(cx);
3595 let colors = cx.theme().colors();
3596
3597 let header =
3598 div()
3599 .p_1()
3600 .w_full()
3601 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
3602 .child(
3603 h_flex()
3604 .size_full()
3605 .gap_2()
3606 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
3607 .pl_0p5()
3608 .pr_5()
3609 .rounded_sm()
3610 .when(is_sticky, |el| el.shadow_md())
3611 .border_1()
3612 .map(|div| {
3613 let border_color = if is_selected
3614 && is_folded
3615 && focus_handle.contains_focused(window, cx)
3616 {
3617 colors.border_focused
3618 } else {
3619 colors.border
3620 };
3621 div.border_color(border_color)
3622 })
3623 .bg(colors.editor_subheader_background)
3624 .hover(|style| style.bg(colors.element_hover))
3625 .map(|header| {
3626 let editor = self.editor.clone();
3627 let buffer_id = for_excerpt.buffer_id;
3628 let toggle_chevron_icon =
3629 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
3630 header.child(
3631 div()
3632 .hover(|style| style.bg(colors.element_selected))
3633 .rounded_xs()
3634 .child(
3635 ButtonLike::new("toggle-buffer-fold")
3636 .style(ui::ButtonStyle::Transparent)
3637 .height(px(28.).into())
3638 .width(px(28.))
3639 .children(toggle_chevron_icon)
3640 .tooltip({
3641 let focus_handle = focus_handle.clone();
3642 move |window, cx| {
3643 Tooltip::with_meta_in(
3644 "Toggle Excerpt Fold",
3645 Some(&ToggleFold),
3646 "Alt+click to toggle all",
3647 &focus_handle,
3648 window,
3649 cx,
3650 )
3651 }
3652 })
3653 .on_click(move |event, window, cx| {
3654 if event.modifiers().alt {
3655 // Alt+click toggles all buffers
3656 editor.update(cx, |editor, cx| {
3657 editor.toggle_fold_all(
3658 &ToggleFoldAll,
3659 window,
3660 cx,
3661 );
3662 });
3663 } else {
3664 // Regular click toggles single buffer
3665 if is_folded {
3666 editor.update(cx, |editor, cx| {
3667 editor.unfold_buffer(buffer_id, cx);
3668 });
3669 } else {
3670 editor.update(cx, |editor, cx| {
3671 editor.fold_buffer(buffer_id, cx);
3672 });
3673 }
3674 }
3675 }),
3676 ),
3677 )
3678 })
3679 .children(
3680 editor
3681 .addons
3682 .values()
3683 .filter_map(|addon| {
3684 addon.render_buffer_header_controls(for_excerpt, window, cx)
3685 })
3686 .take(1),
3687 )
3688 .child(
3689 h_flex()
3690 .cursor_pointer()
3691 .id("path header block")
3692 .size_full()
3693 .justify_between()
3694 .overflow_hidden()
3695 .child(
3696 h_flex()
3697 .gap_2()
3698 .child(
3699 Label::new(
3700 filename
3701 .map(SharedString::from)
3702 .unwrap_or_else(|| "untitled".into()),
3703 )
3704 .single_line()
3705 .when_some(file_status, |el, status| {
3706 el.color(if status.is_conflicted() {
3707 Color::Conflict
3708 } else if status.is_modified() {
3709 Color::Modified
3710 } else if status.is_deleted() {
3711 Color::Disabled
3712 } else {
3713 Color::Created
3714 })
3715 .when(status.is_deleted(), |el| el.strikethrough())
3716 }),
3717 )
3718 .when_some(parent_path, |then, path| {
3719 then.child(div().child(path).text_color(
3720 if file_status.is_some_and(FileStatus::is_deleted) {
3721 colors.text_disabled
3722 } else {
3723 colors.text_muted
3724 },
3725 ))
3726 }),
3727 )
3728 .when(
3729 can_open_excerpts && is_selected && relative_path.is_some(),
3730 |el| {
3731 el.child(
3732 h_flex()
3733 .id("jump-to-file-button")
3734 .gap_2p5()
3735 .child(Label::new("Jump To File"))
3736 .children(
3737 KeyBinding::for_action_in(
3738 &OpenExcerpts,
3739 &focus_handle,
3740 window,
3741 cx,
3742 )
3743 .map(|binding| binding.into_any_element()),
3744 ),
3745 )
3746 },
3747 )
3748 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
3749 .on_click(window.listener_for(&self.editor, {
3750 move |editor, e: &ClickEvent, window, cx| {
3751 editor.open_excerpts_common(
3752 Some(jump_data.clone()),
3753 e.modifiers().secondary(),
3754 window,
3755 cx,
3756 );
3757 }
3758 })),
3759 ),
3760 );
3761
3762 let file = for_excerpt.buffer.file().cloned();
3763 let editor = self.editor.clone();
3764 right_click_menu("buffer-header-context-menu")
3765 .trigger(move |_, _, _| header)
3766 .menu(move |window, cx| {
3767 let menu_context = focus_handle.clone();
3768 let editor = editor.clone();
3769 let file = file.clone();
3770 ContextMenu::build(window, cx, move |mut menu, window, cx| {
3771 if let Some(file) = file
3772 && let Some(project) = editor.read(cx).project()
3773 && let Some(worktree) =
3774 project.read(cx).worktree_for_id(file.worktree_id(cx), cx)
3775 {
3776 let relative_path = file.path();
3777 let entry_for_path = worktree.read(cx).entry_for_path(relative_path);
3778 let abs_path = entry_for_path.and_then(|e| e.canonical_path.as_deref());
3779 let has_relative_path =
3780 worktree.read(cx).root_entry().is_some_and(Entry::is_dir);
3781
3782 let parent_abs_path =
3783 abs_path.and_then(|abs_path| Some(abs_path.parent()?.to_path_buf()));
3784 let relative_path = has_relative_path
3785 .then_some(relative_path)
3786 .map(ToOwned::to_owned);
3787
3788 let visible_in_project_panel =
3789 relative_path.is_some() && worktree.read(cx).is_visible();
3790 let reveal_in_project_panel = entry_for_path
3791 .filter(|_| visible_in_project_panel)
3792 .map(|entry| entry.id);
3793 menu = menu
3794 .when_some(abs_path.map(ToOwned::to_owned), |menu, abs_path| {
3795 menu.entry(
3796 "Copy Path",
3797 Some(Box::new(zed_actions::workspace::CopyPath)),
3798 window.handler_for(&editor, move |_, _, cx| {
3799 cx.write_to_clipboard(ClipboardItem::new_string(
3800 abs_path.to_string_lossy().to_string(),
3801 ));
3802 }),
3803 )
3804 })
3805 .when_some(relative_path, |menu, relative_path| {
3806 menu.entry(
3807 "Copy Relative Path",
3808 Some(Box::new(zed_actions::workspace::CopyRelativePath)),
3809 window.handler_for(&editor, move |_, _, cx| {
3810 cx.write_to_clipboard(ClipboardItem::new_string(
3811 relative_path.to_string_lossy().to_string(),
3812 ));
3813 }),
3814 )
3815 })
3816 .when(
3817 reveal_in_project_panel.is_some() || parent_abs_path.is_some(),
3818 |menu| menu.separator(),
3819 )
3820 .when_some(reveal_in_project_panel, |menu, entry_id| {
3821 menu.entry(
3822 "Reveal In Project Panel",
3823 Some(Box::new(RevealInProjectPanel::default())),
3824 window.handler_for(&editor, move |editor, _, cx| {
3825 if let Some(project) = &mut editor.project {
3826 project.update(cx, |_, cx| {
3827 cx.emit(project::Event::RevealInProjectPanel(
3828 entry_id,
3829 ))
3830 });
3831 }
3832 }),
3833 )
3834 })
3835 .when_some(parent_abs_path, |menu, parent_abs_path| {
3836 menu.entry(
3837 "Open in Terminal",
3838 Some(Box::new(OpenInTerminal)),
3839 window.handler_for(&editor, move |_, window, cx| {
3840 window.dispatch_action(
3841 OpenTerminal {
3842 working_directory: parent_abs_path.clone(),
3843 }
3844 .boxed_clone(),
3845 cx,
3846 );
3847 }),
3848 )
3849 });
3850 }
3851
3852 menu.context(menu_context)
3853 })
3854 })
3855 }
3856
3857 fn render_blocks(
3858 &self,
3859 rows: Range<DisplayRow>,
3860 snapshot: &EditorSnapshot,
3861 hitbox: &Hitbox,
3862 text_hitbox: &Hitbox,
3863 editor_width: Pixels,
3864 scroll_width: &mut Pixels,
3865 editor_margins: &EditorMargins,
3866 em_width: Pixels,
3867 text_x: Pixels,
3868 line_height: Pixels,
3869 line_layouts: &mut [LineWithInvisibles],
3870 selections: &[Selection<Point>],
3871 selected_buffer_ids: &Vec<BufferId>,
3872 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3873 sticky_header_excerpt_id: Option<ExcerptId>,
3874 window: &mut Window,
3875 cx: &mut App,
3876 ) -> Result<(Vec<BlockLayout>, HashMap<DisplayRow, bool>), HashMap<CustomBlockId, u32>> {
3877 let (fixed_blocks, non_fixed_blocks) = snapshot
3878 .blocks_in_range(rows.clone())
3879 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
3880
3881 let mut focused_block = self
3882 .editor
3883 .update(cx, |editor, _| editor.take_focused_block());
3884 let mut fixed_block_max_width = Pixels::ZERO;
3885 let mut blocks = Vec::new();
3886 let mut resized_blocks = HashMap::default();
3887 let mut row_block_types = HashMap::default();
3888
3889 for (row, block) in fixed_blocks {
3890 let block_id = block.id();
3891
3892 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3893 focused_block = None;
3894 }
3895
3896 if let Some((element, element_size, row, x_offset)) = self.render_block(
3897 block,
3898 AvailableSpace::MinContent,
3899 block_id,
3900 row,
3901 snapshot,
3902 text_x,
3903 &rows,
3904 line_layouts,
3905 editor_margins,
3906 line_height,
3907 em_width,
3908 text_hitbox,
3909 editor_width,
3910 scroll_width,
3911 &mut resized_blocks,
3912 &mut row_block_types,
3913 selections,
3914 selected_buffer_ids,
3915 is_row_soft_wrapped,
3916 sticky_header_excerpt_id,
3917 window,
3918 cx,
3919 ) {
3920 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
3921 blocks.push(BlockLayout {
3922 id: block_id,
3923 x_offset,
3924 row: Some(row),
3925 element,
3926 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
3927 style: BlockStyle::Fixed,
3928 overlaps_gutter: true,
3929 is_buffer_header: block.is_buffer_header(),
3930 });
3931 }
3932 }
3933
3934 for (row, block) in non_fixed_blocks {
3935 let style = block.style();
3936 let width = match (style, block.place_near()) {
3937 (_, true) => AvailableSpace::MinContent,
3938 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
3939 (BlockStyle::Flex, _) => hitbox
3940 .size
3941 .width
3942 .max(fixed_block_max_width)
3943 .max(editor_margins.gutter.width + *scroll_width)
3944 .into(),
3945 (BlockStyle::Fixed, _) => unreachable!(),
3946 };
3947 let block_id = block.id();
3948
3949 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3950 focused_block = None;
3951 }
3952
3953 if let Some((element, element_size, row, x_offset)) = self.render_block(
3954 block,
3955 width,
3956 block_id,
3957 row,
3958 snapshot,
3959 text_x,
3960 &rows,
3961 line_layouts,
3962 editor_margins,
3963 line_height,
3964 em_width,
3965 text_hitbox,
3966 editor_width,
3967 scroll_width,
3968 &mut resized_blocks,
3969 &mut row_block_types,
3970 selections,
3971 selected_buffer_ids,
3972 is_row_soft_wrapped,
3973 sticky_header_excerpt_id,
3974 window,
3975 cx,
3976 ) {
3977 blocks.push(BlockLayout {
3978 id: block_id,
3979 x_offset,
3980 row: Some(row),
3981 element,
3982 available_space: size(width, element_size.height.into()),
3983 style,
3984 overlaps_gutter: !block.place_near(),
3985 is_buffer_header: block.is_buffer_header(),
3986 });
3987 }
3988 }
3989
3990 if let Some(focused_block) = focused_block {
3991 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
3992 if focus_handle.is_focused(window) {
3993 if let Some(block) = snapshot.block_for_id(focused_block.id) {
3994 let style = block.style();
3995 let width = match style {
3996 BlockStyle::Fixed => AvailableSpace::MinContent,
3997 BlockStyle::Flex => AvailableSpace::Definite(
3998 hitbox
3999 .size
4000 .width
4001 .max(fixed_block_max_width)
4002 .max(editor_margins.gutter.width + *scroll_width),
4003 ),
4004 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
4005 };
4006
4007 if let Some((element, element_size, _, x_offset)) = self.render_block(
4008 &block,
4009 width,
4010 focused_block.id,
4011 rows.end,
4012 snapshot,
4013 text_x,
4014 &rows,
4015 line_layouts,
4016 editor_margins,
4017 line_height,
4018 em_width,
4019 text_hitbox,
4020 editor_width,
4021 scroll_width,
4022 &mut resized_blocks,
4023 &mut row_block_types,
4024 selections,
4025 selected_buffer_ids,
4026 is_row_soft_wrapped,
4027 sticky_header_excerpt_id,
4028 window,
4029 cx,
4030 ) {
4031 blocks.push(BlockLayout {
4032 id: block.id(),
4033 x_offset,
4034 row: None,
4035 element,
4036 available_space: size(width, element_size.height.into()),
4037 style,
4038 overlaps_gutter: true,
4039 is_buffer_header: block.is_buffer_header(),
4040 });
4041 }
4042 }
4043 }
4044 }
4045 }
4046
4047 if resized_blocks.is_empty() {
4048 *scroll_width =
4049 (*scroll_width).max(fixed_block_max_width - editor_margins.gutter.width);
4050 Ok((blocks, row_block_types))
4051 } else {
4052 Err(resized_blocks)
4053 }
4054 }
4055
4056 fn layout_blocks(
4057 &self,
4058 blocks: &mut Vec<BlockLayout>,
4059 hitbox: &Hitbox,
4060 line_height: Pixels,
4061 scroll_pixel_position: gpui::Point<Pixels>,
4062 window: &mut Window,
4063 cx: &mut App,
4064 ) {
4065 for block in blocks {
4066 let mut origin = if let Some(row) = block.row {
4067 hitbox.origin
4068 + point(
4069 block.x_offset,
4070 row.as_f32() * line_height - scroll_pixel_position.y,
4071 )
4072 } else {
4073 // Position the block outside the visible area
4074 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
4075 };
4076
4077 if !matches!(block.style, BlockStyle::Sticky) {
4078 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
4079 }
4080
4081 let focus_handle =
4082 block
4083 .element
4084 .prepaint_as_root(origin, block.available_space, window, cx);
4085
4086 if let Some(focus_handle) = focus_handle {
4087 self.editor.update(cx, |editor, _cx| {
4088 editor.set_focused_block(FocusedBlock {
4089 id: block.id,
4090 focus_handle: focus_handle.downgrade(),
4091 });
4092 });
4093 }
4094 }
4095 }
4096
4097 fn layout_sticky_buffer_header(
4098 &self,
4099 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
4100 scroll_position: f32,
4101 line_height: Pixels,
4102 right_margin: Pixels,
4103 snapshot: &EditorSnapshot,
4104 hitbox: &Hitbox,
4105 selected_buffer_ids: &Vec<BufferId>,
4106 blocks: &[BlockLayout],
4107 window: &mut Window,
4108 cx: &mut App,
4109 ) -> AnyElement {
4110 let jump_data = header_jump_data(
4111 snapshot,
4112 DisplayRow(scroll_position as u32),
4113 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
4114 excerpt,
4115 );
4116
4117 let editor_bg_color = cx.theme().colors().editor_background;
4118
4119 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
4120
4121 let available_width = hitbox.bounds.size.width - right_margin;
4122
4123 let mut header = v_flex()
4124 .w_full()
4125 .relative()
4126 .child(
4127 div()
4128 .w(available_width)
4129 .h(FILE_HEADER_HEIGHT as f32 * line_height)
4130 .bg(linear_gradient(
4131 0.,
4132 linear_color_stop(editor_bg_color.opacity(0.), 0.),
4133 linear_color_stop(editor_bg_color, 0.6),
4134 ))
4135 .absolute()
4136 .top_0(),
4137 )
4138 .child(
4139 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
4140 .into_any_element(),
4141 )
4142 .into_any_element();
4143
4144 let mut origin = hitbox.origin;
4145 // Move floating header up to avoid colliding with the next buffer header.
4146 for block in blocks.iter() {
4147 if !block.is_buffer_header {
4148 continue;
4149 }
4150
4151 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position as u32) else {
4152 continue;
4153 };
4154
4155 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
4156 let offset = scroll_position - max_row as f32;
4157
4158 if offset > 0.0 {
4159 origin.y -= offset * line_height;
4160 }
4161 break;
4162 }
4163
4164 let size = size(
4165 AvailableSpace::Definite(available_width),
4166 AvailableSpace::MinContent,
4167 );
4168
4169 header.prepaint_as_root(origin, size, window, cx);
4170
4171 header
4172 }
4173
4174 fn layout_cursor_popovers(
4175 &self,
4176 line_height: Pixels,
4177 text_hitbox: &Hitbox,
4178 content_origin: gpui::Point<Pixels>,
4179 right_margin: Pixels,
4180 start_row: DisplayRow,
4181 scroll_pixel_position: gpui::Point<Pixels>,
4182 line_layouts: &[LineWithInvisibles],
4183 cursor: DisplayPoint,
4184 cursor_point: Point,
4185 style: &EditorStyle,
4186 window: &mut Window,
4187 cx: &mut App,
4188 ) -> Option<ContextMenuLayout> {
4189 let mut min_menu_height = Pixels::ZERO;
4190 let mut max_menu_height = Pixels::ZERO;
4191 let mut height_above_menu = Pixels::ZERO;
4192 let height_below_menu = Pixels::ZERO;
4193 let mut edit_prediction_popover_visible = false;
4194 let mut context_menu_visible = false;
4195 let context_menu_placement;
4196
4197 {
4198 let editor = self.editor.read(cx);
4199 if editor.edit_prediction_visible_in_cursor_popover(editor.has_active_edit_prediction())
4200 {
4201 height_above_menu +=
4202 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
4203 edit_prediction_popover_visible = true;
4204 }
4205
4206 if editor.context_menu_visible() {
4207 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
4208 let (min_height_in_lines, max_height_in_lines) = editor
4209 .context_menu_options
4210 .as_ref()
4211 .map_or((3, 12), |options| {
4212 (options.min_entries_visible, options.max_entries_visible)
4213 });
4214
4215 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4216 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4217 context_menu_visible = true;
4218 }
4219 }
4220 context_menu_placement = editor
4221 .context_menu_options
4222 .as_ref()
4223 .and_then(|options| options.placement.clone());
4224 }
4225
4226 let visible = edit_prediction_popover_visible || context_menu_visible;
4227 if !visible {
4228 return None;
4229 }
4230
4231 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
4232 let target_position = content_origin
4233 + gpui::Point {
4234 x: cmp::max(
4235 px(0.),
4236 cursor_row_layout.x_for_index(cursor.column() as usize)
4237 - scroll_pixel_position.x,
4238 ),
4239 y: cmp::max(
4240 px(0.),
4241 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
4242 ),
4243 };
4244
4245 let viewport_bounds =
4246 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4247 right: -right_margin - MENU_GAP,
4248 ..Default::default()
4249 });
4250
4251 let min_height = height_above_menu + min_menu_height + height_below_menu;
4252 let max_height = height_above_menu + max_menu_height + height_below_menu;
4253 let (laid_out_popovers, y_flipped) = self.layout_popovers_above_or_below_line(
4254 target_position,
4255 line_height,
4256 min_height,
4257 max_height,
4258 context_menu_placement,
4259 text_hitbox,
4260 viewport_bounds,
4261 window,
4262 cx,
4263 |height, max_width_for_stable_x, y_flipped, window, cx| {
4264 // First layout the menu to get its size - others can be at least this wide.
4265 let context_menu = if context_menu_visible {
4266 let menu_height = if y_flipped {
4267 height - height_below_menu
4268 } else {
4269 height - height_above_menu
4270 };
4271 let mut element = self
4272 .render_context_menu(line_height, menu_height, window, cx)
4273 .expect("Visible context menu should always render.");
4274 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4275 Some((CursorPopoverType::CodeContextMenu, element, size))
4276 } else {
4277 None
4278 };
4279 let min_width = context_menu
4280 .as_ref()
4281 .map_or(px(0.), |(_, _, size)| size.width);
4282 let max_width = max_width_for_stable_x.max(
4283 context_menu
4284 .as_ref()
4285 .map_or(px(0.), |(_, _, size)| size.width),
4286 );
4287
4288 let edit_prediction = if edit_prediction_popover_visible {
4289 self.editor.update(cx, move |editor, cx| {
4290 let accept_binding =
4291 editor.accept_edit_prediction_keybind(false, window, cx);
4292 let mut element = editor.render_edit_prediction_cursor_popover(
4293 min_width,
4294 max_width,
4295 cursor_point,
4296 style,
4297 accept_binding.keystroke(),
4298 window,
4299 cx,
4300 )?;
4301 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4302 Some((CursorPopoverType::EditPrediction, element, size))
4303 })
4304 } else {
4305 None
4306 };
4307 vec![edit_prediction, context_menu]
4308 .into_iter()
4309 .flatten()
4310 .collect::<Vec<_>>()
4311 },
4312 )?;
4313
4314 let (menu_ix, (_, menu_bounds)) = laid_out_popovers
4315 .iter()
4316 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))?;
4317 let last_ix = laid_out_popovers.len() - 1;
4318 let menu_is_last = menu_ix == last_ix;
4319 let first_popover_bounds = laid_out_popovers[0].1;
4320 let last_popover_bounds = laid_out_popovers[last_ix].1;
4321
4322 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
4323 // right, and otherwise it goes below or to the right.
4324 let mut target_bounds = Bounds::from_corners(
4325 first_popover_bounds.origin,
4326 last_popover_bounds.bottom_right(),
4327 );
4328 target_bounds.size.width = menu_bounds.size.width;
4329
4330 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
4331 // based on this is preferred for layout stability.
4332 let mut max_target_bounds = target_bounds;
4333 max_target_bounds.size.height = max_height;
4334 if y_flipped {
4335 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
4336 }
4337
4338 // Add spacing around `target_bounds` and `max_target_bounds`.
4339 let mut extend_amount = Edges::all(MENU_GAP);
4340 if y_flipped {
4341 extend_amount.bottom = line_height;
4342 } else {
4343 extend_amount.top = line_height;
4344 }
4345 let target_bounds = target_bounds.extend(extend_amount);
4346 let max_target_bounds = max_target_bounds.extend(extend_amount);
4347
4348 let must_place_above_or_below =
4349 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
4350 laid_out_popovers[menu_ix + 1..]
4351 .iter()
4352 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
4353 } else {
4354 false
4355 };
4356
4357 let aside_bounds = self.layout_context_menu_aside(
4358 y_flipped,
4359 *menu_bounds,
4360 target_bounds,
4361 max_target_bounds,
4362 max_menu_height,
4363 must_place_above_or_below,
4364 text_hitbox,
4365 viewport_bounds,
4366 window,
4367 cx,
4368 );
4369
4370 if let Some(menu_bounds) = laid_out_popovers.iter().find_map(|(popover_type, bounds)| {
4371 if matches!(popover_type, CursorPopoverType::CodeContextMenu) {
4372 Some(*bounds)
4373 } else {
4374 None
4375 }
4376 }) {
4377 let bounds = if let Some(aside_bounds) = aside_bounds {
4378 menu_bounds.union(&aside_bounds)
4379 } else {
4380 menu_bounds
4381 };
4382 return Some(ContextMenuLayout { y_flipped, bounds });
4383 }
4384
4385 None
4386 }
4387
4388 fn layout_gutter_menu(
4389 &self,
4390 line_height: Pixels,
4391 text_hitbox: &Hitbox,
4392 content_origin: gpui::Point<Pixels>,
4393 right_margin: Pixels,
4394 scroll_pixel_position: gpui::Point<Pixels>,
4395 gutter_overshoot: Pixels,
4396 window: &mut Window,
4397 cx: &mut App,
4398 ) {
4399 let editor = self.editor.read(cx);
4400 if !editor.context_menu_visible() {
4401 return;
4402 }
4403 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
4404 editor.context_menu_origin()
4405 else {
4406 return;
4407 };
4408 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
4409 // indicator than just a plain first column of the text field.
4410 let target_position = content_origin
4411 + gpui::Point {
4412 x: -gutter_overshoot,
4413 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
4414 };
4415
4416 let (min_height_in_lines, max_height_in_lines) = editor
4417 .context_menu_options
4418 .as_ref()
4419 .map_or((3, 12), |options| {
4420 (options.min_entries_visible, options.max_entries_visible)
4421 });
4422
4423 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4424 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4425 let viewport_bounds =
4426 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4427 right: -right_margin - MENU_GAP,
4428 ..Default::default()
4429 });
4430 self.layout_popovers_above_or_below_line(
4431 target_position,
4432 line_height,
4433 min_height,
4434 max_height,
4435 editor
4436 .context_menu_options
4437 .as_ref()
4438 .and_then(|options| options.placement.clone()),
4439 text_hitbox,
4440 viewport_bounds,
4441 window,
4442 cx,
4443 move |height, _max_width_for_stable_x, _, window, cx| {
4444 let mut element = self
4445 .render_context_menu(line_height, height, window, cx)
4446 .expect("Visible context menu should always render.");
4447 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4448 vec![(CursorPopoverType::CodeContextMenu, element, size)]
4449 },
4450 );
4451 }
4452
4453 fn layout_popovers_above_or_below_line(
4454 &self,
4455 target_position: gpui::Point<Pixels>,
4456 line_height: Pixels,
4457 min_height: Pixels,
4458 max_height: Pixels,
4459 placement: Option<ContextMenuPlacement>,
4460 text_hitbox: &Hitbox,
4461 viewport_bounds: Bounds<Pixels>,
4462 window: &mut Window,
4463 cx: &mut App,
4464 make_sized_popovers: impl FnOnce(
4465 Pixels,
4466 Pixels,
4467 bool,
4468 &mut Window,
4469 &mut App,
4470 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
4471 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
4472 let text_style = TextStyleRefinement {
4473 line_height: Some(DefiniteLength::Fraction(
4474 BufferLineHeight::Comfortable.value(),
4475 )),
4476 ..Default::default()
4477 };
4478 window.with_text_style(Some(text_style), |window| {
4479 // If the max height won't fit below and there is more space above, put it above the line.
4480 let bottom_y_when_flipped = target_position.y - line_height;
4481 let available_above = bottom_y_when_flipped - text_hitbox.top();
4482 let available_below = text_hitbox.bottom() - target_position.y;
4483 let y_overflows_below = max_height > available_below;
4484 let mut y_flipped = match placement {
4485 Some(ContextMenuPlacement::Above) => true,
4486 Some(ContextMenuPlacement::Below) => false,
4487 None => y_overflows_below && available_above > available_below,
4488 };
4489 let mut height = cmp::min(
4490 max_height,
4491 if y_flipped {
4492 available_above
4493 } else {
4494 available_below
4495 },
4496 );
4497
4498 // If the min height doesn't fit within text bounds, instead fit within the window.
4499 if height < min_height {
4500 let available_above = bottom_y_when_flipped;
4501 let available_below = viewport_bounds.bottom() - target_position.y;
4502 let (y_flipped_override, height_override) = match placement {
4503 Some(ContextMenuPlacement::Above) => {
4504 (true, cmp::min(available_above, min_height))
4505 }
4506 Some(ContextMenuPlacement::Below) => {
4507 (false, cmp::min(available_below, min_height))
4508 }
4509 None => {
4510 if available_below > min_height {
4511 (false, min_height)
4512 } else if available_above > min_height {
4513 (true, min_height)
4514 } else if available_above > available_below {
4515 (true, available_above)
4516 } else {
4517 (false, available_below)
4518 }
4519 }
4520 };
4521 y_flipped = y_flipped_override;
4522 height = height_override;
4523 }
4524
4525 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
4526
4527 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
4528 // for very narrow windows.
4529 let popovers =
4530 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
4531 if popovers.is_empty() {
4532 return None;
4533 }
4534
4535 let max_width = popovers
4536 .iter()
4537 .map(|(_, _, size)| size.width)
4538 .max()
4539 .unwrap_or_default();
4540
4541 let mut current_position = gpui::Point {
4542 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
4543 // overflow. Include space for the scrollbar.
4544 x: target_position
4545 .x
4546 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
4547 y: if y_flipped {
4548 bottom_y_when_flipped
4549 } else {
4550 target_position.y
4551 },
4552 };
4553
4554 let mut laid_out_popovers = popovers
4555 .into_iter()
4556 .map(|(popover_type, element, size)| {
4557 if y_flipped {
4558 current_position.y -= size.height;
4559 }
4560 let position = current_position;
4561 window.defer_draw(element, current_position, 1);
4562 if !y_flipped {
4563 current_position.y += size.height + MENU_GAP;
4564 } else {
4565 current_position.y -= MENU_GAP;
4566 }
4567 (popover_type, Bounds::new(position, size))
4568 })
4569 .collect::<Vec<_>>();
4570
4571 if y_flipped {
4572 laid_out_popovers.reverse();
4573 }
4574
4575 Some((laid_out_popovers, y_flipped))
4576 })
4577 }
4578
4579 fn layout_context_menu_aside(
4580 &self,
4581 y_flipped: bool,
4582 menu_bounds: Bounds<Pixels>,
4583 target_bounds: Bounds<Pixels>,
4584 max_target_bounds: Bounds<Pixels>,
4585 max_height: Pixels,
4586 must_place_above_or_below: bool,
4587 text_hitbox: &Hitbox,
4588 viewport_bounds: Bounds<Pixels>,
4589 window: &mut Window,
4590 cx: &mut App,
4591 ) -> Option<Bounds<Pixels>> {
4592 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
4593 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
4594 && !must_place_above_or_below
4595 {
4596 let max_width = cmp::min(
4597 available_within_viewport.right - px(1.),
4598 MENU_ASIDE_MAX_WIDTH,
4599 );
4600 let mut aside = self.render_context_menu_aside(
4601 size(max_width, max_height - POPOVER_Y_PADDING),
4602 window,
4603 cx,
4604 )?;
4605 let size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
4606 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
4607 Some((aside, right_position, size))
4608 } else {
4609 let max_size = size(
4610 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
4611 // won't be needed here.
4612 cmp::min(
4613 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
4614 viewport_bounds.right(),
4615 ),
4616 cmp::min(
4617 max_height,
4618 cmp::max(
4619 available_within_viewport.top,
4620 available_within_viewport.bottom,
4621 ),
4622 ) - POPOVER_Y_PADDING,
4623 );
4624 let mut aside = self.render_context_menu_aside(max_size, window, cx)?;
4625 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
4626
4627 let top_position = point(
4628 menu_bounds.origin.x,
4629 target_bounds.top() - actual_size.height,
4630 );
4631 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
4632
4633 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
4634 // Prefer to fit on the same side of the line as the menu, then on the other side of
4635 // the line.
4636 if !y_flipped && wanted.height < available.bottom {
4637 Some(bottom_position)
4638 } else if !y_flipped && wanted.height < available.top {
4639 Some(top_position)
4640 } else if y_flipped && wanted.height < available.top {
4641 Some(top_position)
4642 } else if y_flipped && wanted.height < available.bottom {
4643 Some(bottom_position)
4644 } else {
4645 None
4646 }
4647 };
4648
4649 // Prefer choosing a direction using max sizes rather than actual size for stability.
4650 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
4651 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
4652 let aside_position = fit_within(available_within_text, wanted)
4653 // Fallback: fit max size in window.
4654 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
4655 // Fallback: fit actual size in window.
4656 .or_else(|| fit_within(available_within_viewport, actual_size));
4657
4658 aside_position.map(|position| (aside, position, actual_size))
4659 };
4660
4661 // Skip drawing if it doesn't fit anywhere.
4662 if let Some((aside, position, size)) = positioned_aside {
4663 let aside_bounds = Bounds::new(position, size);
4664 window.defer_draw(aside, position, 2);
4665 return Some(aside_bounds);
4666 }
4667
4668 None
4669 }
4670
4671 fn render_context_menu(
4672 &self,
4673 line_height: Pixels,
4674 height: Pixels,
4675 window: &mut Window,
4676 cx: &mut App,
4677 ) -> Option<AnyElement> {
4678 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
4679 self.editor.update(cx, |editor, cx| {
4680 editor.render_context_menu(&self.style, max_height_in_lines, window, cx)
4681 })
4682 }
4683
4684 fn render_context_menu_aside(
4685 &self,
4686 max_size: Size<Pixels>,
4687 window: &mut Window,
4688 cx: &mut App,
4689 ) -> Option<AnyElement> {
4690 if max_size.width < px(100.) || max_size.height < px(12.) {
4691 None
4692 } else {
4693 self.editor.update(cx, |editor, cx| {
4694 editor.render_context_menu_aside(max_size, window, cx)
4695 })
4696 }
4697 }
4698
4699 fn layout_mouse_context_menu(
4700 &self,
4701 editor_snapshot: &EditorSnapshot,
4702 visible_range: Range<DisplayRow>,
4703 content_origin: gpui::Point<Pixels>,
4704 window: &mut Window,
4705 cx: &mut App,
4706 ) -> Option<AnyElement> {
4707 let position = self.editor.update(cx, |editor, _cx| {
4708 let visible_start_point = editor.display_to_pixel_point(
4709 DisplayPoint::new(visible_range.start, 0),
4710 editor_snapshot,
4711 window,
4712 )?;
4713 let visible_end_point = editor.display_to_pixel_point(
4714 DisplayPoint::new(visible_range.end, 0),
4715 editor_snapshot,
4716 window,
4717 )?;
4718
4719 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
4720 let (source_display_point, position) = match mouse_context_menu.position {
4721 MenuPosition::PinnedToScreen(point) => (None, point),
4722 MenuPosition::PinnedToEditor { source, offset } => {
4723 let source_display_point = source.to_display_point(editor_snapshot);
4724 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
4725 let position = content_origin + source_point + offset;
4726 (Some(source_display_point), position)
4727 }
4728 };
4729
4730 let source_included = source_display_point.map_or(true, |source_display_point| {
4731 visible_range
4732 .to_inclusive()
4733 .contains(&source_display_point.row())
4734 });
4735 let position_included =
4736 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
4737 if !source_included && !position_included {
4738 None
4739 } else {
4740 Some(position)
4741 }
4742 })?;
4743
4744 let text_style = TextStyleRefinement {
4745 line_height: Some(DefiniteLength::Fraction(
4746 BufferLineHeight::Comfortable.value(),
4747 )),
4748 ..Default::default()
4749 };
4750 window.with_text_style(Some(text_style), |window| {
4751 let mut element = self.editor.read_with(cx, |editor, _| {
4752 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
4753 let context_menu = mouse_context_menu.context_menu.clone();
4754
4755 Some(
4756 deferred(
4757 anchored()
4758 .position(position)
4759 .child(context_menu)
4760 .anchor(Corner::TopLeft)
4761 .snap_to_window_with_margin(px(8.)),
4762 )
4763 .with_priority(1)
4764 .into_any(),
4765 )
4766 })?;
4767
4768 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
4769 Some(element)
4770 })
4771 }
4772
4773 fn layout_hover_popovers(
4774 &self,
4775 snapshot: &EditorSnapshot,
4776 hitbox: &Hitbox,
4777 visible_display_row_range: Range<DisplayRow>,
4778 content_origin: gpui::Point<Pixels>,
4779 scroll_pixel_position: gpui::Point<Pixels>,
4780 line_layouts: &[LineWithInvisibles],
4781 line_height: Pixels,
4782 em_width: Pixels,
4783 context_menu_layout: Option<ContextMenuLayout>,
4784 window: &mut Window,
4785 cx: &mut App,
4786 ) {
4787 struct MeasuredHoverPopover {
4788 element: AnyElement,
4789 size: Size<Pixels>,
4790 horizontal_offset: Pixels,
4791 }
4792
4793 let max_size = size(
4794 (120. * em_width) // Default size
4795 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4796 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4797 (16. * line_height) // Default size
4798 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4799 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4800 );
4801
4802 let hover_popovers = self.editor.update(cx, |editor, cx| {
4803 editor.hover_state.render(
4804 snapshot,
4805 visible_display_row_range.clone(),
4806 max_size,
4807 window,
4808 cx,
4809 )
4810 });
4811 let Some((position, hover_popovers)) = hover_popovers else {
4812 return;
4813 };
4814
4815 // This is safe because we check on layout whether the required row is available
4816 let hovered_row_layout =
4817 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
4818
4819 // Compute Hovered Point
4820 let x =
4821 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
4822 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
4823 let hovered_point = content_origin + point(x, y);
4824
4825 let mut overall_height = Pixels::ZERO;
4826 let mut measured_hover_popovers = Vec::new();
4827 for (position, mut hover_popover) in hover_popovers.into_iter().with_position() {
4828 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
4829 let horizontal_offset =
4830 (hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
4831 .min(Pixels::ZERO);
4832 match position {
4833 itertools::Position::Middle | itertools::Position::Last => {
4834 overall_height += HOVER_POPOVER_GAP
4835 }
4836 _ => {}
4837 }
4838 overall_height += size.height;
4839 measured_hover_popovers.push(MeasuredHoverPopover {
4840 element: hover_popover,
4841 size,
4842 horizontal_offset,
4843 });
4844 }
4845
4846 fn draw_occluder(
4847 width: Pixels,
4848 origin: gpui::Point<Pixels>,
4849 window: &mut Window,
4850 cx: &mut App,
4851 ) {
4852 let mut occlusion = div()
4853 .size_full()
4854 .occlude()
4855 .on_mouse_move(|_, _, cx| cx.stop_propagation())
4856 .into_any_element();
4857 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
4858 window.defer_draw(occlusion, origin, 2);
4859 }
4860
4861 fn place_popovers_above(
4862 hovered_point: gpui::Point<Pixels>,
4863 measured_hover_popovers: Vec<MeasuredHoverPopover>,
4864 window: &mut Window,
4865 cx: &mut App,
4866 ) {
4867 let mut current_y = hovered_point.y;
4868 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4869 let size = popover.size;
4870 let popover_origin = point(
4871 hovered_point.x + popover.horizontal_offset,
4872 current_y - size.height,
4873 );
4874
4875 window.defer_draw(popover.element, popover_origin, 2);
4876 if position != itertools::Position::Last {
4877 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
4878 draw_occluder(size.width, origin, window, cx);
4879 }
4880
4881 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4882 }
4883 }
4884
4885 fn place_popovers_below(
4886 hovered_point: gpui::Point<Pixels>,
4887 measured_hover_popovers: Vec<MeasuredHoverPopover>,
4888 line_height: Pixels,
4889 window: &mut Window,
4890 cx: &mut App,
4891 ) {
4892 let mut current_y = hovered_point.y + line_height;
4893 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4894 let size = popover.size;
4895 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4896
4897 window.defer_draw(popover.element, popover_origin, 2);
4898 if position != itertools::Position::Last {
4899 let origin = point(popover_origin.x, popover_origin.y + size.height);
4900 draw_occluder(size.width, origin, window, cx);
4901 }
4902
4903 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4904 }
4905 }
4906
4907 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
4908 context_menu_layout
4909 .as_ref()
4910 .map_or(false, |menu| bounds.intersects(&menu.bounds))
4911 };
4912
4913 let can_place_above = {
4914 let mut bounds_above = Vec::new();
4915 let mut current_y = hovered_point.y;
4916 for popover in &measured_hover_popovers {
4917 let size = popover.size;
4918 let popover_origin = point(
4919 hovered_point.x + popover.horizontal_offset,
4920 current_y - size.height,
4921 );
4922 bounds_above.push(Bounds::new(popover_origin, size));
4923 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4924 }
4925 bounds_above
4926 .iter()
4927 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
4928 };
4929
4930 let can_place_below = || {
4931 let mut bounds_below = Vec::new();
4932 let mut current_y = hovered_point.y + line_height;
4933 for popover in &measured_hover_popovers {
4934 let size = popover.size;
4935 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4936 bounds_below.push(Bounds::new(popover_origin, size));
4937 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4938 }
4939 bounds_below
4940 .iter()
4941 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
4942 };
4943
4944 if can_place_above {
4945 // try placing above hovered point
4946 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
4947 } else if can_place_below() {
4948 // try placing below hovered point
4949 place_popovers_below(
4950 hovered_point,
4951 measured_hover_popovers,
4952 line_height,
4953 window,
4954 cx,
4955 );
4956 } else {
4957 // try to place popovers around the context menu
4958 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
4959 let total_width = measured_hover_popovers
4960 .iter()
4961 .map(|p| p.size.width)
4962 .max()
4963 .unwrap_or(Pixels::ZERO);
4964 let y_for_horizontal_positioning = if menu.y_flipped {
4965 menu.bounds.bottom() - overall_height
4966 } else {
4967 menu.bounds.top()
4968 };
4969 let possible_origins = vec![
4970 // left of context menu
4971 point(
4972 menu.bounds.left() - total_width - HOVER_POPOVER_GAP,
4973 y_for_horizontal_positioning,
4974 ),
4975 // right of context menu
4976 point(
4977 menu.bounds.right() + HOVER_POPOVER_GAP,
4978 y_for_horizontal_positioning,
4979 ),
4980 // top of context menu
4981 point(
4982 menu.bounds.left(),
4983 menu.bounds.top() - overall_height - HOVER_POPOVER_GAP,
4984 ),
4985 // bottom of context menu
4986 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
4987 ];
4988 possible_origins.into_iter().find(|&origin| {
4989 Bounds::new(origin, size(total_width, overall_height))
4990 .is_contained_within(hitbox)
4991 })
4992 });
4993 if let Some(origin) = origin_surrounding_menu {
4994 let mut current_y = origin.y;
4995 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4996 let size = popover.size;
4997 let popover_origin = point(origin.x, current_y);
4998
4999 window.defer_draw(popover.element, popover_origin, 2);
5000 if position != itertools::Position::Last {
5001 let origin = point(popover_origin.x, popover_origin.y + size.height);
5002 draw_occluder(size.width, origin, window, cx);
5003 }
5004
5005 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5006 }
5007 } else {
5008 // fallback to existing above/below cursor logic
5009 // this might overlap menu or overflow in rare case
5010 if can_place_above {
5011 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5012 } else {
5013 place_popovers_below(
5014 hovered_point,
5015 measured_hover_popovers,
5016 line_height,
5017 window,
5018 cx,
5019 );
5020 }
5021 }
5022 }
5023 }
5024
5025 fn layout_diff_hunk_controls(
5026 &self,
5027 row_range: Range<DisplayRow>,
5028 row_infos: &[RowInfo],
5029 text_hitbox: &Hitbox,
5030 newest_cursor_position: Option<DisplayPoint>,
5031 line_height: Pixels,
5032 right_margin: Pixels,
5033 scroll_pixel_position: gpui::Point<Pixels>,
5034 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5035 highlighted_rows: &BTreeMap<DisplayRow, LineHighlight>,
5036 editor: Entity<Editor>,
5037 window: &mut Window,
5038 cx: &mut App,
5039 ) -> (Vec<AnyElement>, Vec<(DisplayRow, Bounds<Pixels>)>) {
5040 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
5041 let hovered_diff_hunk_row = editor.read(cx).hovered_diff_hunk_row;
5042
5043 let mut controls = vec![];
5044 let mut control_bounds = vec![];
5045
5046 let active_positions = [
5047 hovered_diff_hunk_row.map(|row| DisplayPoint::new(row, 0)),
5048 newest_cursor_position,
5049 ];
5050
5051 for (hunk, _) in display_hunks {
5052 if let DisplayDiffHunk::Unfolded {
5053 display_row_range,
5054 multi_buffer_range,
5055 status,
5056 is_created_file,
5057 ..
5058 } = &hunk
5059 {
5060 if display_row_range.start < row_range.start
5061 || display_row_range.start >= row_range.end
5062 {
5063 continue;
5064 }
5065 if highlighted_rows
5066 .get(&display_row_range.start)
5067 .and_then(|highlight| highlight.type_id)
5068 .is_some_and(|type_id| {
5069 [
5070 TypeId::of::<ConflictsOuter>(),
5071 TypeId::of::<ConflictsOursMarker>(),
5072 TypeId::of::<ConflictsOurs>(),
5073 TypeId::of::<ConflictsTheirs>(),
5074 TypeId::of::<ConflictsTheirsMarker>(),
5075 ]
5076 .contains(&type_id)
5077 })
5078 {
5079 continue;
5080 }
5081 let row_ix = (display_row_range.start - row_range.start).0 as usize;
5082 if row_infos[row_ix].diff_status.is_none() {
5083 continue;
5084 }
5085 if row_infos[row_ix]
5086 .diff_status
5087 .is_some_and(|status| status.is_added())
5088 && !status.is_added()
5089 {
5090 continue;
5091 }
5092
5093 if active_positions
5094 .iter()
5095 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
5096 {
5097 let y = display_row_range.start.as_f32() * line_height
5098 + text_hitbox.bounds.top()
5099 - scroll_pixel_position.y;
5100
5101 let mut element = render_diff_hunk_controls(
5102 display_row_range.start.0,
5103 status,
5104 multi_buffer_range.clone(),
5105 *is_created_file,
5106 line_height,
5107 &editor,
5108 window,
5109 cx,
5110 );
5111 let size =
5112 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
5113
5114 let x = text_hitbox.bounds.right() - right_margin - px(10.) - size.width;
5115
5116 let bounds = Bounds::new(gpui::Point::new(x, y), size);
5117 control_bounds.push((display_row_range.start, bounds));
5118
5119 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
5120 element.prepaint(window, cx)
5121 });
5122 controls.push(element);
5123 }
5124 }
5125 }
5126
5127 (controls, control_bounds)
5128 }
5129
5130 fn layout_signature_help(
5131 &self,
5132 hitbox: &Hitbox,
5133 content_origin: gpui::Point<Pixels>,
5134 scroll_pixel_position: gpui::Point<Pixels>,
5135 newest_selection_head: Option<DisplayPoint>,
5136 start_row: DisplayRow,
5137 line_layouts: &[LineWithInvisibles],
5138 line_height: Pixels,
5139 em_width: Pixels,
5140 context_menu_layout: Option<ContextMenuLayout>,
5141 window: &mut Window,
5142 cx: &mut App,
5143 ) {
5144 if !self.editor.focus_handle(cx).is_focused(window) {
5145 return;
5146 }
5147 let Some(newest_selection_head) = newest_selection_head else {
5148 return;
5149 };
5150
5151 let max_size = size(
5152 (120. * em_width) // Default size
5153 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5154 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5155 (16. * line_height) // Default size
5156 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5157 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5158 );
5159
5160 let maybe_element = self.editor.update(cx, |editor, cx| {
5161 if let Some(popover) = editor.signature_help_state.popover_mut() {
5162 let element = popover.render(max_size, window, cx);
5163 Some(element)
5164 } else {
5165 None
5166 }
5167 });
5168 let Some(mut element) = maybe_element else {
5169 return;
5170 };
5171
5172 let selection_row = newest_selection_head.row();
5173 let Some(cursor_row_layout) = (selection_row >= start_row)
5174 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
5175 .flatten()
5176 else {
5177 return;
5178 };
5179
5180 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
5181 - scroll_pixel_position.x;
5182 let target_y = selection_row.as_f32() * line_height - scroll_pixel_position.y;
5183 let target_point = content_origin + point(target_x, target_y);
5184
5185 let actual_size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
5186
5187 let (popover_bounds_above, popover_bounds_below) = {
5188 let horizontal_offset = (hitbox.top_right().x
5189 - POPOVER_RIGHT_OFFSET
5190 - (target_point.x + actual_size.width))
5191 .min(Pixels::ZERO);
5192 let initial_x = target_point.x + horizontal_offset;
5193 (
5194 Bounds::new(
5195 point(initial_x, target_point.y - actual_size.height),
5196 actual_size,
5197 ),
5198 Bounds::new(
5199 point(initial_x, target_point.y + line_height + HOVER_POPOVER_GAP),
5200 actual_size,
5201 ),
5202 )
5203 };
5204
5205 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5206 context_menu_layout
5207 .as_ref()
5208 .map_or(false, |menu| bounds.intersects(&menu.bounds))
5209 };
5210
5211 let final_origin = if popover_bounds_above.is_contained_within(hitbox)
5212 && !intersects_menu(popover_bounds_above)
5213 {
5214 // try placing above cursor
5215 popover_bounds_above.origin
5216 } else if popover_bounds_below.is_contained_within(hitbox)
5217 && !intersects_menu(popover_bounds_below)
5218 {
5219 // try placing below cursor
5220 popover_bounds_below.origin
5221 } else {
5222 // try surrounding context menu if exists
5223 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5224 let y_for_horizontal_positioning = if menu.y_flipped {
5225 menu.bounds.bottom() - actual_size.height
5226 } else {
5227 menu.bounds.top()
5228 };
5229 let possible_origins = vec![
5230 // left of context menu
5231 point(
5232 menu.bounds.left() - actual_size.width - HOVER_POPOVER_GAP,
5233 y_for_horizontal_positioning,
5234 ),
5235 // right of context menu
5236 point(
5237 menu.bounds.right() + HOVER_POPOVER_GAP,
5238 y_for_horizontal_positioning,
5239 ),
5240 // top of context menu
5241 point(
5242 menu.bounds.left(),
5243 menu.bounds.top() - actual_size.height - HOVER_POPOVER_GAP,
5244 ),
5245 // bottom of context menu
5246 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5247 ];
5248 possible_origins
5249 .into_iter()
5250 .find(|&origin| Bounds::new(origin, actual_size).is_contained_within(hitbox))
5251 });
5252 origin_surrounding_menu.unwrap_or_else(|| {
5253 // fallback to existing above/below cursor logic
5254 // this might overlap menu or overflow in rare case
5255 if popover_bounds_above.is_contained_within(hitbox) {
5256 popover_bounds_above.origin
5257 } else {
5258 popover_bounds_below.origin
5259 }
5260 })
5261 };
5262
5263 window.defer_draw(element, final_origin, 2);
5264 }
5265
5266 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5267 window.paint_layer(layout.hitbox.bounds, |window| {
5268 let scroll_top = layout.position_map.snapshot.scroll_position().y;
5269 let gutter_bg = cx.theme().colors().editor_gutter_background;
5270 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
5271 window.paint_quad(fill(
5272 layout.position_map.text_hitbox.bounds,
5273 self.style.background,
5274 ));
5275
5276 if matches!(
5277 layout.mode,
5278 EditorMode::Full { .. } | EditorMode::Minimap { .. }
5279 ) {
5280 let show_active_line_background = match layout.mode {
5281 EditorMode::Full {
5282 show_active_line_background,
5283 ..
5284 } => show_active_line_background,
5285 EditorMode::Minimap { .. } => true,
5286 _ => false,
5287 };
5288 let mut active_rows = layout.active_rows.iter().peekable();
5289 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
5290 let mut end_row = start_row.0;
5291 while active_rows
5292 .peek()
5293 .map_or(false, |(active_row, has_selection)| {
5294 active_row.0 == end_row + 1
5295 && has_selection.selection == contains_non_empty_selection.selection
5296 })
5297 {
5298 active_rows.next().unwrap();
5299 end_row += 1;
5300 }
5301
5302 if show_active_line_background && !contains_non_empty_selection.selection {
5303 let highlight_h_range =
5304 match layout.position_map.snapshot.current_line_highlight {
5305 CurrentLineHighlight::Gutter => Some(Range {
5306 start: layout.hitbox.left(),
5307 end: layout.gutter_hitbox.right(),
5308 }),
5309 CurrentLineHighlight::Line => Some(Range {
5310 start: layout.position_map.text_hitbox.bounds.left(),
5311 end: layout.position_map.text_hitbox.bounds.right(),
5312 }),
5313 CurrentLineHighlight::All => Some(Range {
5314 start: layout.hitbox.left(),
5315 end: layout.hitbox.right(),
5316 }),
5317 CurrentLineHighlight::None => None,
5318 };
5319 if let Some(range) = highlight_h_range {
5320 let active_line_bg = cx.theme().colors().editor_active_line_background;
5321 let bounds = Bounds {
5322 origin: point(
5323 range.start,
5324 layout.hitbox.origin.y
5325 + (start_row.as_f32() - scroll_top)
5326 * layout.position_map.line_height,
5327 ),
5328 size: size(
5329 range.end - range.start,
5330 layout.position_map.line_height
5331 * (end_row - start_row.0 + 1) as f32,
5332 ),
5333 };
5334 window.paint_quad(fill(bounds, active_line_bg));
5335 }
5336 }
5337 }
5338
5339 let mut paint_highlight = |highlight_row_start: DisplayRow,
5340 highlight_row_end: DisplayRow,
5341 highlight: crate::LineHighlight,
5342 edges| {
5343 let mut origin_x = layout.hitbox.left();
5344 let mut width = layout.hitbox.size.width;
5345 if !highlight.include_gutter {
5346 origin_x += layout.gutter_hitbox.size.width;
5347 width -= layout.gutter_hitbox.size.width;
5348 }
5349
5350 let origin = point(
5351 origin_x,
5352 layout.hitbox.origin.y
5353 + (highlight_row_start.as_f32() - scroll_top)
5354 * layout.position_map.line_height,
5355 );
5356 let size = size(
5357 width,
5358 layout.position_map.line_height
5359 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
5360 );
5361 let mut quad = fill(Bounds { origin, size }, highlight.background);
5362 if let Some(border_color) = highlight.border {
5363 quad.border_color = border_color;
5364 quad.border_widths = edges
5365 }
5366 window.paint_quad(quad);
5367 };
5368
5369 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
5370 None;
5371 for (&new_row, &new_background) in &layout.highlighted_rows {
5372 match &mut current_paint {
5373 &mut Some((current_background, ref mut current_range, mut edges)) => {
5374 let new_range_started = current_background != new_background
5375 || current_range.end.next_row() != new_row;
5376 if new_range_started {
5377 if current_range.end.next_row() == new_row {
5378 edges.bottom = px(0.);
5379 };
5380 paint_highlight(
5381 current_range.start,
5382 current_range.end,
5383 current_background,
5384 edges,
5385 );
5386 let edges = Edges {
5387 top: if current_range.end.next_row() != new_row {
5388 px(1.)
5389 } else {
5390 px(0.)
5391 },
5392 bottom: px(1.),
5393 ..Default::default()
5394 };
5395 current_paint = Some((new_background, new_row..new_row, edges));
5396 continue;
5397 } else {
5398 current_range.end = current_range.end.next_row();
5399 }
5400 }
5401 None => {
5402 let edges = Edges {
5403 top: px(1.),
5404 bottom: px(1.),
5405 ..Default::default()
5406 };
5407 current_paint = Some((new_background, new_row..new_row, edges))
5408 }
5409 };
5410 }
5411 if let Some((color, range, edges)) = current_paint {
5412 paint_highlight(range.start, range.end, color, edges);
5413 }
5414
5415 for (guide_x, active) in layout.wrap_guides.iter() {
5416 let color = if *active {
5417 cx.theme().colors().editor_active_wrap_guide
5418 } else {
5419 cx.theme().colors().editor_wrap_guide
5420 };
5421 window.paint_quad(fill(
5422 Bounds {
5423 origin: point(*guide_x, layout.position_map.text_hitbox.origin.y),
5424 size: size(px(1.), layout.position_map.text_hitbox.size.height),
5425 },
5426 color,
5427 ));
5428 }
5429 }
5430 })
5431 }
5432
5433 fn paint_indent_guides(
5434 &mut self,
5435 layout: &mut EditorLayout,
5436 window: &mut Window,
5437 cx: &mut App,
5438 ) {
5439 let Some(indent_guides) = &layout.indent_guides else {
5440 return;
5441 };
5442
5443 let faded_color = |color: Hsla, alpha: f32| {
5444 let mut faded = color;
5445 faded.a = alpha;
5446 faded
5447 };
5448
5449 for indent_guide in indent_guides {
5450 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
5451 let settings = indent_guide.settings;
5452
5453 // TODO fixed for now, expose them through themes later
5454 const INDENT_AWARE_ALPHA: f32 = 0.2;
5455 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
5456 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
5457 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
5458
5459 let line_color = match (settings.coloring, indent_guide.active) {
5460 (IndentGuideColoring::Disabled, _) => None,
5461 (IndentGuideColoring::Fixed, false) => {
5462 Some(cx.theme().colors().editor_indent_guide)
5463 }
5464 (IndentGuideColoring::Fixed, true) => {
5465 Some(cx.theme().colors().editor_indent_guide_active)
5466 }
5467 (IndentGuideColoring::IndentAware, false) => {
5468 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
5469 }
5470 (IndentGuideColoring::IndentAware, true) => {
5471 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
5472 }
5473 };
5474
5475 let background_color = match (settings.background_coloring, indent_guide.active) {
5476 (IndentGuideBackgroundColoring::Disabled, _) => None,
5477 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
5478 indent_accent_colors,
5479 INDENT_AWARE_BACKGROUND_ALPHA,
5480 )),
5481 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
5482 indent_accent_colors,
5483 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
5484 )),
5485 };
5486
5487 let requested_line_width = if indent_guide.active {
5488 settings.active_line_width
5489 } else {
5490 settings.line_width
5491 }
5492 .clamp(1, 10);
5493 let mut line_indicator_width = 0.;
5494 if let Some(color) = line_color {
5495 window.paint_quad(fill(
5496 Bounds {
5497 origin: indent_guide.origin,
5498 size: size(px(requested_line_width as f32), indent_guide.length),
5499 },
5500 color,
5501 ));
5502 line_indicator_width = requested_line_width as f32;
5503 }
5504
5505 if let Some(color) = background_color {
5506 let width = indent_guide.single_indent_width - px(line_indicator_width);
5507 window.paint_quad(fill(
5508 Bounds {
5509 origin: point(
5510 indent_guide.origin.x + px(line_indicator_width),
5511 indent_guide.origin.y,
5512 ),
5513 size: size(width, indent_guide.length),
5514 },
5515 color,
5516 ));
5517 }
5518 }
5519 }
5520
5521 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5522 let is_singleton = self.editor.read(cx).is_singleton(cx);
5523
5524 let line_height = layout.position_map.line_height;
5525 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
5526
5527 for LineNumberLayout {
5528 shaped_line,
5529 hitbox,
5530 } in layout.line_numbers.values()
5531 {
5532 let Some(hitbox) = hitbox else {
5533 continue;
5534 };
5535
5536 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
5537 let color = cx.theme().colors().editor_hover_line_number;
5538
5539 let line = self.shape_line_number(shaped_line.text.clone(), color, window);
5540 line.paint(hitbox.origin, line_height, window, cx).log_err()
5541 } else {
5542 shaped_line
5543 .paint(hitbox.origin, line_height, window, cx)
5544 .log_err()
5545 }) else {
5546 continue;
5547 };
5548
5549 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
5550 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
5551 if is_singleton {
5552 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
5553 } else {
5554 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
5555 }
5556 }
5557 }
5558
5559 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5560 if layout.display_hunks.is_empty() {
5561 return;
5562 }
5563
5564 let line_height = layout.position_map.line_height;
5565 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5566 for (hunk, hitbox) in &layout.display_hunks {
5567 let hunk_to_paint = match hunk {
5568 DisplayDiffHunk::Folded { .. } => {
5569 let hunk_bounds = Self::diff_hunk_bounds(
5570 &layout.position_map.snapshot,
5571 line_height,
5572 layout.gutter_hitbox.bounds,
5573 &hunk,
5574 );
5575 Some((
5576 hunk_bounds,
5577 cx.theme().colors().version_control_modified,
5578 Corners::all(px(0.)),
5579 DiffHunkStatus::modified_none(),
5580 ))
5581 }
5582 DisplayDiffHunk::Unfolded {
5583 status,
5584 display_row_range,
5585 ..
5586 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
5587 DiffHunkStatusKind::Added => (
5588 hunk_hitbox.bounds,
5589 cx.theme().colors().version_control_added,
5590 Corners::all(px(0.)),
5591 *status,
5592 ),
5593 DiffHunkStatusKind::Modified => (
5594 hunk_hitbox.bounds,
5595 cx.theme().colors().version_control_modified,
5596 Corners::all(px(0.)),
5597 *status,
5598 ),
5599 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
5600 hunk_hitbox.bounds,
5601 cx.theme().colors().version_control_deleted,
5602 Corners::all(px(0.)),
5603 *status,
5604 ),
5605 DiffHunkStatusKind::Deleted => (
5606 Bounds::new(
5607 point(
5608 hunk_hitbox.origin.x - hunk_hitbox.size.width,
5609 hunk_hitbox.origin.y,
5610 ),
5611 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
5612 ),
5613 cx.theme().colors().version_control_deleted,
5614 Corners::all(1. * line_height),
5615 *status,
5616 ),
5617 }),
5618 };
5619
5620 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
5621 // Flatten the background color with the editor color to prevent
5622 // elements below transparent hunks from showing through
5623 let flattened_background_color = cx
5624 .theme()
5625 .colors()
5626 .editor_background
5627 .blend(background_color);
5628
5629 if !Self::diff_hunk_hollow(status, cx) {
5630 window.paint_quad(quad(
5631 hunk_bounds,
5632 corner_radii,
5633 flattened_background_color,
5634 Edges::default(),
5635 transparent_black(),
5636 BorderStyle::default(),
5637 ));
5638 } else {
5639 let flattened_unstaged_background_color = cx
5640 .theme()
5641 .colors()
5642 .editor_background
5643 .blend(background_color.opacity(0.3));
5644
5645 window.paint_quad(quad(
5646 hunk_bounds,
5647 corner_radii,
5648 flattened_unstaged_background_color,
5649 Edges::all(Pixels(1.0)),
5650 flattened_background_color,
5651 BorderStyle::Solid,
5652 ));
5653 }
5654 }
5655 }
5656 });
5657 }
5658
5659 fn gutter_strip_width(line_height: Pixels) -> Pixels {
5660 (0.275 * line_height).floor()
5661 }
5662
5663 fn diff_hunk_bounds(
5664 snapshot: &EditorSnapshot,
5665 line_height: Pixels,
5666 gutter_bounds: Bounds<Pixels>,
5667 hunk: &DisplayDiffHunk,
5668 ) -> Bounds<Pixels> {
5669 let scroll_position = snapshot.scroll_position();
5670 let scroll_top = scroll_position.y * line_height;
5671 let gutter_strip_width = Self::gutter_strip_width(line_height);
5672
5673 match hunk {
5674 DisplayDiffHunk::Folded { display_row, .. } => {
5675 let start_y = display_row.as_f32() * line_height - scroll_top;
5676 let end_y = start_y + line_height;
5677 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5678 let highlight_size = size(gutter_strip_width, end_y - start_y);
5679 Bounds::new(highlight_origin, highlight_size)
5680 }
5681 DisplayDiffHunk::Unfolded {
5682 display_row_range,
5683 status,
5684 ..
5685 } => {
5686 if status.is_deleted() && display_row_range.is_empty() {
5687 let row = display_row_range.start;
5688
5689 let offset = line_height / 2.;
5690 let start_y = row.as_f32() * line_height - offset - scroll_top;
5691 let end_y = start_y + line_height;
5692
5693 let width = (0.35 * line_height).floor();
5694 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5695 let highlight_size = size(width, end_y - start_y);
5696 Bounds::new(highlight_origin, highlight_size)
5697 } else {
5698 let start_row = display_row_range.start;
5699 let end_row = display_row_range.end;
5700 // If we're in a multibuffer, row range span might include an
5701 // excerpt header, so if we were to draw the marker straight away,
5702 // the hunk might include the rows of that header.
5703 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
5704 // Instead, we simply check whether the range we're dealing with includes
5705 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
5706 let end_row_in_current_excerpt = snapshot
5707 .blocks_in_range(start_row..end_row)
5708 .find_map(|(start_row, block)| {
5709 if matches!(block, Block::ExcerptBoundary { .. }) {
5710 Some(start_row)
5711 } else {
5712 None
5713 }
5714 })
5715 .unwrap_or(end_row);
5716
5717 let start_y = start_row.as_f32() * line_height - scroll_top;
5718 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
5719
5720 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5721 let highlight_size = size(gutter_strip_width, end_y - start_y);
5722 Bounds::new(highlight_origin, highlight_size)
5723 }
5724 }
5725 }
5726 }
5727
5728 fn paint_gutter_indicators(
5729 &self,
5730 layout: &mut EditorLayout,
5731 window: &mut Window,
5732 cx: &mut App,
5733 ) {
5734 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5735 window.with_element_namespace("crease_toggles", |window| {
5736 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
5737 crease_toggle.paint(window, cx);
5738 }
5739 });
5740
5741 window.with_element_namespace("expand_toggles", |window| {
5742 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
5743 expand_toggle.paint(window, cx);
5744 }
5745 });
5746
5747 for breakpoint in layout.breakpoints.iter_mut() {
5748 breakpoint.paint(window, cx);
5749 }
5750
5751 for test_indicator in layout.test_indicators.iter_mut() {
5752 test_indicator.paint(window, cx);
5753 }
5754 });
5755 }
5756
5757 fn paint_gutter_highlights(
5758 &self,
5759 layout: &mut EditorLayout,
5760 window: &mut Window,
5761 cx: &mut App,
5762 ) {
5763 for (_, hunk_hitbox) in &layout.display_hunks {
5764 if let Some(hunk_hitbox) = hunk_hitbox {
5765 if !self
5766 .editor
5767 .read(cx)
5768 .buffer()
5769 .read(cx)
5770 .all_diff_hunks_expanded()
5771 {
5772 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
5773 }
5774 }
5775 }
5776
5777 let show_git_gutter = layout
5778 .position_map
5779 .snapshot
5780 .show_git_diff_gutter
5781 .unwrap_or_else(|| {
5782 matches!(
5783 ProjectSettings::get_global(cx).git.git_gutter,
5784 Some(GitGutterSetting::TrackedFiles)
5785 )
5786 });
5787 if show_git_gutter {
5788 Self::paint_gutter_diff_hunks(layout, window, cx)
5789 }
5790
5791 let highlight_width = 0.275 * layout.position_map.line_height;
5792 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
5793 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5794 for (range, color) in &layout.highlighted_gutter_ranges {
5795 let start_row = if range.start.row() < layout.visible_display_row_range.start {
5796 layout.visible_display_row_range.start - DisplayRow(1)
5797 } else {
5798 range.start.row()
5799 };
5800 let end_row = if range.end.row() > layout.visible_display_row_range.end {
5801 layout.visible_display_row_range.end + DisplayRow(1)
5802 } else {
5803 range.end.row()
5804 };
5805
5806 let start_y = layout.gutter_hitbox.top()
5807 + start_row.0 as f32 * layout.position_map.line_height
5808 - layout.position_map.scroll_pixel_position.y;
5809 let end_y = layout.gutter_hitbox.top()
5810 + (end_row.0 + 1) as f32 * layout.position_map.line_height
5811 - layout.position_map.scroll_pixel_position.y;
5812 let bounds = Bounds::from_corners(
5813 point(layout.gutter_hitbox.left(), start_y),
5814 point(layout.gutter_hitbox.left() + highlight_width, end_y),
5815 );
5816 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
5817 }
5818 });
5819 }
5820
5821 fn paint_blamed_display_rows(
5822 &self,
5823 layout: &mut EditorLayout,
5824 window: &mut Window,
5825 cx: &mut App,
5826 ) {
5827 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
5828 return;
5829 };
5830
5831 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5832 for mut blame_element in blamed_display_rows.into_iter() {
5833 blame_element.paint(window, cx);
5834 }
5835 })
5836 }
5837
5838 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5839 window.with_content_mask(
5840 Some(ContentMask {
5841 bounds: layout.position_map.text_hitbox.bounds,
5842 }),
5843 |window| {
5844 let editor = self.editor.read(cx);
5845 if editor.mouse_cursor_hidden {
5846 window.set_window_cursor_style(CursorStyle::None);
5847 } else if let SelectionDragState::ReadyToDrag {
5848 mouse_down_time, ..
5849 } = &editor.selection_drag_state
5850 {
5851 let drag_and_drop_delay = Duration::from_millis(
5852 EditorSettings::get_global(cx).drag_and_drop_selection.delay,
5853 );
5854 if mouse_down_time.elapsed() >= drag_and_drop_delay {
5855 window.set_cursor_style(
5856 CursorStyle::DragCopy,
5857 &layout.position_map.text_hitbox,
5858 );
5859 }
5860 } else if matches!(
5861 editor.selection_drag_state,
5862 SelectionDragState::Dragging { .. }
5863 ) {
5864 window
5865 .set_cursor_style(CursorStyle::DragCopy, &layout.position_map.text_hitbox);
5866 } else if editor
5867 .hovered_link_state
5868 .as_ref()
5869 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
5870 {
5871 window.set_cursor_style(
5872 CursorStyle::PointingHand,
5873 &layout.position_map.text_hitbox,
5874 );
5875 } else {
5876 window.set_cursor_style(CursorStyle::IBeam, &layout.position_map.text_hitbox);
5877 };
5878
5879 self.paint_lines_background(layout, window, cx);
5880 let invisible_display_ranges = self.paint_highlights(layout, window);
5881 self.paint_document_colors(layout, window);
5882 self.paint_lines(&invisible_display_ranges, layout, window, cx);
5883 self.paint_redactions(layout, window);
5884 self.paint_cursors(layout, window, cx);
5885 self.paint_inline_diagnostics(layout, window, cx);
5886 self.paint_inline_blame(layout, window, cx);
5887 self.paint_inline_code_actions(layout, window, cx);
5888 self.paint_diff_hunk_controls(layout, window, cx);
5889 window.with_element_namespace("crease_trailers", |window| {
5890 for trailer in layout.crease_trailers.iter_mut().flatten() {
5891 trailer.element.paint(window, cx);
5892 }
5893 });
5894 },
5895 )
5896 }
5897
5898 fn paint_highlights(
5899 &mut self,
5900 layout: &mut EditorLayout,
5901 window: &mut Window,
5902 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
5903 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5904 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
5905 let line_end_overshoot = 0.15 * layout.position_map.line_height;
5906 for (range, color) in &layout.highlighted_ranges {
5907 self.paint_highlighted_range(
5908 range.clone(),
5909 true,
5910 *color,
5911 Pixels::ZERO,
5912 line_end_overshoot,
5913 layout,
5914 window,
5915 );
5916 }
5917
5918 let corner_radius = 0.15 * layout.position_map.line_height;
5919
5920 for (player_color, selections) in &layout.selections {
5921 for selection in selections.iter() {
5922 self.paint_highlighted_range(
5923 selection.range.clone(),
5924 true,
5925 player_color.selection,
5926 corner_radius,
5927 corner_radius * 2.,
5928 layout,
5929 window,
5930 );
5931
5932 if selection.is_local && !selection.range.is_empty() {
5933 invisible_display_ranges.push(selection.range.clone());
5934 }
5935 }
5936 }
5937 invisible_display_ranges
5938 })
5939 }
5940
5941 fn paint_lines(
5942 &mut self,
5943 invisible_display_ranges: &[Range<DisplayPoint>],
5944 layout: &mut EditorLayout,
5945 window: &mut Window,
5946 cx: &mut App,
5947 ) {
5948 let whitespace_setting = self
5949 .editor
5950 .read(cx)
5951 .buffer
5952 .read(cx)
5953 .language_settings(cx)
5954 .show_whitespaces;
5955
5956 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
5957 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
5958 line_with_invisibles.draw(
5959 layout,
5960 row,
5961 layout.content_origin,
5962 whitespace_setting,
5963 invisible_display_ranges,
5964 window,
5965 cx,
5966 )
5967 }
5968
5969 for line_element in &mut layout.line_elements {
5970 line_element.paint(window, cx);
5971 }
5972 }
5973
5974 fn paint_lines_background(
5975 &mut self,
5976 layout: &mut EditorLayout,
5977 window: &mut Window,
5978 cx: &mut App,
5979 ) {
5980 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
5981 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
5982 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
5983 }
5984 }
5985
5986 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
5987 if layout.redacted_ranges.is_empty() {
5988 return;
5989 }
5990
5991 let line_end_overshoot = layout.line_end_overshoot();
5992
5993 // A softer than perfect black
5994 let redaction_color = gpui::rgb(0x0e1111);
5995
5996 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5997 for range in layout.redacted_ranges.iter() {
5998 self.paint_highlighted_range(
5999 range.clone(),
6000 true,
6001 redaction_color.into(),
6002 Pixels::ZERO,
6003 line_end_overshoot,
6004 layout,
6005 window,
6006 );
6007 }
6008 });
6009 }
6010
6011 fn paint_document_colors(&self, layout: &mut EditorLayout, window: &mut Window) {
6012 let Some((colors_render_mode, image_colors)) = &layout.document_colors else {
6013 return;
6014 };
6015 if image_colors.is_empty()
6016 || colors_render_mode == &DocumentColorsRenderMode::None
6017 || colors_render_mode == &DocumentColorsRenderMode::Inlay
6018 {
6019 return;
6020 }
6021
6022 let line_end_overshoot = layout.line_end_overshoot();
6023
6024 for (range, color) in image_colors {
6025 match colors_render_mode {
6026 DocumentColorsRenderMode::Inlay | DocumentColorsRenderMode::None => return,
6027 DocumentColorsRenderMode::Background => {
6028 self.paint_highlighted_range(
6029 range.clone(),
6030 true,
6031 *color,
6032 Pixels::ZERO,
6033 line_end_overshoot,
6034 layout,
6035 window,
6036 );
6037 }
6038 DocumentColorsRenderMode::Border => {
6039 self.paint_highlighted_range(
6040 range.clone(),
6041 false,
6042 *color,
6043 Pixels::ZERO,
6044 line_end_overshoot,
6045 layout,
6046 window,
6047 );
6048 }
6049 }
6050 }
6051 }
6052
6053 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6054 for cursor in &mut layout.visible_cursors {
6055 cursor.paint(layout.content_origin, window, cx);
6056 }
6057 }
6058
6059 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6060 let Some(scrollbars_layout) = layout.scrollbars_layout.take() else {
6061 return;
6062 };
6063 let any_scrollbar_dragged = self.editor.read(cx).scroll_manager.any_scrollbar_dragged();
6064
6065 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
6066 let hitbox = &scrollbar_layout.hitbox;
6067 if scrollbars_layout.visible {
6068 let scrollbar_edges = match axis {
6069 ScrollbarAxis::Horizontal => Edges {
6070 top: Pixels::ZERO,
6071 right: Pixels::ZERO,
6072 bottom: Pixels::ZERO,
6073 left: Pixels::ZERO,
6074 },
6075 ScrollbarAxis::Vertical => Edges {
6076 top: Pixels::ZERO,
6077 right: Pixels::ZERO,
6078 bottom: Pixels::ZERO,
6079 left: ScrollbarLayout::BORDER_WIDTH,
6080 },
6081 };
6082
6083 window.paint_layer(hitbox.bounds, |window| {
6084 window.paint_quad(quad(
6085 hitbox.bounds,
6086 Corners::default(),
6087 cx.theme().colors().scrollbar_track_background,
6088 scrollbar_edges,
6089 cx.theme().colors().scrollbar_track_border,
6090 BorderStyle::Solid,
6091 ));
6092
6093 if axis == ScrollbarAxis::Vertical {
6094 let fast_markers =
6095 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
6096 // Refresh slow scrollbar markers in the background. Below, we
6097 // paint whatever markers have already been computed.
6098 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
6099
6100 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
6101 for marker in markers.iter().chain(&fast_markers) {
6102 let mut marker = marker.clone();
6103 marker.bounds.origin += hitbox.origin;
6104 window.paint_quad(marker);
6105 }
6106 }
6107
6108 if let Some(thumb_bounds) = scrollbar_layout.thumb_bounds {
6109 let scrollbar_thumb_color = match scrollbar_layout.thumb_state {
6110 ScrollbarThumbState::Dragging => {
6111 cx.theme().colors().scrollbar_thumb_active_background
6112 }
6113 ScrollbarThumbState::Hovered => {
6114 cx.theme().colors().scrollbar_thumb_hover_background
6115 }
6116 ScrollbarThumbState::Idle => {
6117 cx.theme().colors().scrollbar_thumb_background
6118 }
6119 };
6120 window.paint_quad(quad(
6121 thumb_bounds,
6122 Corners::default(),
6123 scrollbar_thumb_color,
6124 scrollbar_edges,
6125 cx.theme().colors().scrollbar_thumb_border,
6126 BorderStyle::Solid,
6127 ));
6128
6129 if any_scrollbar_dragged {
6130 window.set_window_cursor_style(CursorStyle::Arrow);
6131 } else {
6132 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
6133 }
6134 }
6135 })
6136 }
6137 }
6138
6139 window.on_mouse_event({
6140 let editor = self.editor.clone();
6141 let scrollbars_layout = scrollbars_layout.clone();
6142
6143 let mut mouse_position = window.mouse_position();
6144 move |event: &MouseMoveEvent, phase, window, cx| {
6145 if phase == DispatchPhase::Capture {
6146 return;
6147 }
6148
6149 editor.update(cx, |editor, cx| {
6150 if let Some((scrollbar_layout, axis)) = event
6151 .pressed_button
6152 .filter(|button| *button == MouseButton::Left)
6153 .and(editor.scroll_manager.dragging_scrollbar_axis())
6154 .and_then(|axis| {
6155 scrollbars_layout
6156 .iter_scrollbars()
6157 .find(|(_, a)| *a == axis)
6158 })
6159 {
6160 let ScrollbarLayout {
6161 hitbox,
6162 text_unit_size,
6163 ..
6164 } = scrollbar_layout;
6165
6166 let old_position = mouse_position.along(axis);
6167 let new_position = event.position.along(axis);
6168 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
6169 .contains(&old_position)
6170 {
6171 let position = editor.scroll_position(cx).apply_along(axis, |p| {
6172 (p + (new_position - old_position) / *text_unit_size).max(0.)
6173 });
6174 editor.set_scroll_position(position, window, cx);
6175 }
6176
6177 editor.scroll_manager.show_scrollbars(window, cx);
6178 cx.stop_propagation();
6179 } else if let Some((layout, axis)) = scrollbars_layout
6180 .get_hovered_axis(window)
6181 .filter(|_| !event.dragging())
6182 {
6183 if layout.thumb_hovered(&event.position) {
6184 editor
6185 .scroll_manager
6186 .set_hovered_scroll_thumb_axis(axis, cx);
6187 } else {
6188 editor.scroll_manager.reset_scrollbar_state(cx);
6189 }
6190
6191 editor.scroll_manager.show_scrollbars(window, cx);
6192 } else {
6193 editor.scroll_manager.reset_scrollbar_state(cx);
6194 }
6195
6196 mouse_position = event.position;
6197 })
6198 }
6199 });
6200
6201 if any_scrollbar_dragged {
6202 window.on_mouse_event({
6203 let editor = self.editor.clone();
6204 move |_: &MouseUpEvent, phase, window, cx| {
6205 if phase == DispatchPhase::Capture {
6206 return;
6207 }
6208
6209 editor.update(cx, |editor, cx| {
6210 if let Some((_, axis)) = scrollbars_layout.get_hovered_axis(window) {
6211 editor
6212 .scroll_manager
6213 .set_hovered_scroll_thumb_axis(axis, cx);
6214 } else {
6215 editor.scroll_manager.reset_scrollbar_state(cx);
6216 }
6217 cx.stop_propagation();
6218 });
6219 }
6220 });
6221 } else {
6222 window.on_mouse_event({
6223 let editor = self.editor.clone();
6224
6225 move |event: &MouseDownEvent, phase, window, cx| {
6226 if phase == DispatchPhase::Capture {
6227 return;
6228 }
6229 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
6230 else {
6231 return;
6232 };
6233
6234 let ScrollbarLayout {
6235 hitbox,
6236 visible_range,
6237 text_unit_size,
6238 thumb_bounds,
6239 ..
6240 } = scrollbar_layout;
6241
6242 let Some(thumb_bounds) = thumb_bounds else {
6243 return;
6244 };
6245
6246 editor.update(cx, |editor, cx| {
6247 editor
6248 .scroll_manager
6249 .set_dragged_scroll_thumb_axis(axis, cx);
6250
6251 let event_position = event.position.along(axis);
6252
6253 if event_position < thumb_bounds.origin.along(axis)
6254 || thumb_bounds.bottom_right().along(axis) < event_position
6255 {
6256 let center_position = ((event_position - hitbox.origin.along(axis))
6257 / *text_unit_size)
6258 .round() as u32;
6259 let start_position = center_position.saturating_sub(
6260 (visible_range.end - visible_range.start) as u32 / 2,
6261 );
6262
6263 let position = editor
6264 .scroll_position(cx)
6265 .apply_along(axis, |_| start_position as f32);
6266
6267 editor.set_scroll_position(position, window, cx);
6268 } else {
6269 editor.scroll_manager.show_scrollbars(window, cx);
6270 }
6271
6272 cx.stop_propagation();
6273 });
6274 }
6275 });
6276 }
6277 }
6278
6279 fn collect_fast_scrollbar_markers(
6280 &self,
6281 layout: &EditorLayout,
6282 scrollbar_layout: &ScrollbarLayout,
6283 cx: &mut App,
6284 ) -> Vec<PaintQuad> {
6285 const LIMIT: usize = 100;
6286 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
6287 return vec![];
6288 }
6289 let cursor_ranges = layout
6290 .cursors
6291 .iter()
6292 .map(|(point, color)| ColoredRange {
6293 start: point.row(),
6294 end: point.row(),
6295 color: *color,
6296 })
6297 .collect_vec();
6298 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
6299 }
6300
6301 fn refresh_slow_scrollbar_markers(
6302 &self,
6303 layout: &EditorLayout,
6304 scrollbar_layout: &ScrollbarLayout,
6305 window: &mut Window,
6306 cx: &mut App,
6307 ) {
6308 self.editor.update(cx, |editor, cx| {
6309 if !editor.is_singleton(cx)
6310 || !editor
6311 .scrollbar_marker_state
6312 .should_refresh(scrollbar_layout.hitbox.size)
6313 {
6314 return;
6315 }
6316
6317 let scrollbar_layout = scrollbar_layout.clone();
6318 let background_highlights = editor.background_highlights.clone();
6319 let snapshot = layout.position_map.snapshot.clone();
6320 let theme = cx.theme().clone();
6321 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
6322
6323 editor.scrollbar_marker_state.dirty = false;
6324 editor.scrollbar_marker_state.pending_refresh =
6325 Some(cx.spawn_in(window, async move |editor, cx| {
6326 let scrollbar_size = scrollbar_layout.hitbox.size;
6327 let scrollbar_markers = cx
6328 .background_spawn(async move {
6329 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
6330 let mut marker_quads = Vec::new();
6331 if scrollbar_settings.git_diff {
6332 let marker_row_ranges =
6333 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
6334 let start_display_row =
6335 MultiBufferPoint::new(hunk.row_range.start.0, 0)
6336 .to_display_point(&snapshot.display_snapshot)
6337 .row();
6338 let mut end_display_row =
6339 MultiBufferPoint::new(hunk.row_range.end.0, 0)
6340 .to_display_point(&snapshot.display_snapshot)
6341 .row();
6342 if end_display_row != start_display_row {
6343 end_display_row.0 -= 1;
6344 }
6345 let color = match &hunk.status().kind {
6346 DiffHunkStatusKind::Added => {
6347 theme.colors().version_control_added
6348 }
6349 DiffHunkStatusKind::Modified => {
6350 theme.colors().version_control_modified
6351 }
6352 DiffHunkStatusKind::Deleted => {
6353 theme.colors().version_control_deleted
6354 }
6355 };
6356 ColoredRange {
6357 start: start_display_row,
6358 end: end_display_row,
6359 color,
6360 }
6361 });
6362
6363 marker_quads.extend(
6364 scrollbar_layout
6365 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
6366 );
6367 }
6368
6369 for (background_highlight_id, (_, background_ranges)) in
6370 background_highlights.iter()
6371 {
6372 let is_search_highlights = *background_highlight_id
6373 == HighlightKey::Type(TypeId::of::<BufferSearchHighlights>());
6374 let is_text_highlights = *background_highlight_id
6375 == HighlightKey::Type(TypeId::of::<SelectedTextHighlight>());
6376 let is_symbol_occurrences = *background_highlight_id
6377 == HighlightKey::Type(TypeId::of::<DocumentHighlightRead>())
6378 || *background_highlight_id
6379 == HighlightKey::Type(
6380 TypeId::of::<DocumentHighlightWrite>(),
6381 );
6382 if (is_search_highlights && scrollbar_settings.search_results)
6383 || (is_text_highlights && scrollbar_settings.selected_text)
6384 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
6385 {
6386 let mut color = theme.status().info;
6387 if is_symbol_occurrences {
6388 color.fade_out(0.5);
6389 }
6390 let marker_row_ranges = background_ranges.iter().map(|range| {
6391 let display_start = range
6392 .start
6393 .to_display_point(&snapshot.display_snapshot);
6394 let display_end =
6395 range.end.to_display_point(&snapshot.display_snapshot);
6396 ColoredRange {
6397 start: display_start.row(),
6398 end: display_end.row(),
6399 color,
6400 }
6401 });
6402 marker_quads.extend(
6403 scrollbar_layout
6404 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
6405 );
6406 }
6407 }
6408
6409 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
6410 let diagnostics = snapshot
6411 .buffer_snapshot
6412 .diagnostics_in_range::<Point>(Point::zero()..max_point)
6413 // Don't show diagnostics the user doesn't care about
6414 .filter(|diagnostic| {
6415 match (
6416 scrollbar_settings.diagnostics,
6417 diagnostic.diagnostic.severity,
6418 ) {
6419 (ScrollbarDiagnostics::All, _) => true,
6420 (
6421 ScrollbarDiagnostics::Error,
6422 lsp::DiagnosticSeverity::ERROR,
6423 ) => true,
6424 (
6425 ScrollbarDiagnostics::Warning,
6426 lsp::DiagnosticSeverity::ERROR
6427 | lsp::DiagnosticSeverity::WARNING,
6428 ) => true,
6429 (
6430 ScrollbarDiagnostics::Information,
6431 lsp::DiagnosticSeverity::ERROR
6432 | lsp::DiagnosticSeverity::WARNING
6433 | lsp::DiagnosticSeverity::INFORMATION,
6434 ) => true,
6435 (_, _) => false,
6436 }
6437 })
6438 // We want to sort by severity, in order to paint the most severe diagnostics last.
6439 .sorted_by_key(|diagnostic| {
6440 std::cmp::Reverse(diagnostic.diagnostic.severity)
6441 });
6442
6443 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
6444 let start_display = diagnostic
6445 .range
6446 .start
6447 .to_display_point(&snapshot.display_snapshot);
6448 let end_display = diagnostic
6449 .range
6450 .end
6451 .to_display_point(&snapshot.display_snapshot);
6452 let color = match diagnostic.diagnostic.severity {
6453 lsp::DiagnosticSeverity::ERROR => theme.status().error,
6454 lsp::DiagnosticSeverity::WARNING => theme.status().warning,
6455 lsp::DiagnosticSeverity::INFORMATION => theme.status().info,
6456 _ => theme.status().hint,
6457 };
6458 ColoredRange {
6459 start: start_display.row(),
6460 end: end_display.row(),
6461 color,
6462 }
6463 });
6464 marker_quads.extend(
6465 scrollbar_layout
6466 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
6467 );
6468 }
6469
6470 Arc::from(marker_quads)
6471 })
6472 .await;
6473
6474 editor.update(cx, |editor, cx| {
6475 editor.scrollbar_marker_state.markers = scrollbar_markers;
6476 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
6477 editor.scrollbar_marker_state.pending_refresh = None;
6478 cx.notify();
6479 })?;
6480
6481 Ok(())
6482 }));
6483 });
6484 }
6485
6486 fn paint_highlighted_range(
6487 &self,
6488 range: Range<DisplayPoint>,
6489 fill: bool,
6490 color: Hsla,
6491 corner_radius: Pixels,
6492 line_end_overshoot: Pixels,
6493 layout: &EditorLayout,
6494 window: &mut Window,
6495 ) {
6496 let start_row = layout.visible_display_row_range.start;
6497 let end_row = layout.visible_display_row_range.end;
6498 if range.start != range.end {
6499 let row_range = if range.end.column() == 0 {
6500 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
6501 } else {
6502 cmp::max(range.start.row(), start_row)
6503 ..cmp::min(range.end.row().next_row(), end_row)
6504 };
6505
6506 let highlighted_range = HighlightedRange {
6507 color,
6508 line_height: layout.position_map.line_height,
6509 corner_radius,
6510 start_y: layout.content_origin.y
6511 + row_range.start.as_f32() * layout.position_map.line_height
6512 - layout.position_map.scroll_pixel_position.y,
6513 lines: row_range
6514 .iter_rows()
6515 .map(|row| {
6516 let line_layout =
6517 &layout.position_map.line_layouts[row.minus(start_row) as usize];
6518 HighlightedRangeLine {
6519 start_x: if row == range.start.row() {
6520 layout.content_origin.x
6521 + line_layout.x_for_index(range.start.column() as usize)
6522 - layout.position_map.scroll_pixel_position.x
6523 } else {
6524 layout.content_origin.x
6525 - layout.position_map.scroll_pixel_position.x
6526 },
6527 end_x: if row == range.end.row() {
6528 layout.content_origin.x
6529 + line_layout.x_for_index(range.end.column() as usize)
6530 - layout.position_map.scroll_pixel_position.x
6531 } else {
6532 layout.content_origin.x + line_layout.width + line_end_overshoot
6533 - layout.position_map.scroll_pixel_position.x
6534 },
6535 }
6536 })
6537 .collect(),
6538 };
6539
6540 highlighted_range.paint(fill, layout.position_map.text_hitbox.bounds, window);
6541 }
6542 }
6543
6544 fn paint_inline_diagnostics(
6545 &mut self,
6546 layout: &mut EditorLayout,
6547 window: &mut Window,
6548 cx: &mut App,
6549 ) {
6550 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
6551 inline_diagnostic.1.paint(window, cx);
6552 }
6553 }
6554
6555 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6556 if let Some(mut blame_layout) = layout.inline_blame_layout.take() {
6557 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6558 blame_layout.element.paint(window, cx);
6559 })
6560 }
6561 }
6562
6563 fn paint_inline_code_actions(
6564 &mut self,
6565 layout: &mut EditorLayout,
6566 window: &mut Window,
6567 cx: &mut App,
6568 ) {
6569 if let Some(mut inline_code_actions) = layout.inline_code_actions.take() {
6570 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6571 inline_code_actions.paint(window, cx);
6572 })
6573 }
6574 }
6575
6576 fn paint_diff_hunk_controls(
6577 &mut self,
6578 layout: &mut EditorLayout,
6579 window: &mut Window,
6580 cx: &mut App,
6581 ) {
6582 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
6583 diff_hunk_control.paint(window, cx);
6584 }
6585 }
6586
6587 fn paint_minimap(&self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6588 if let Some(mut layout) = layout.minimap.take() {
6589 let minimap_hitbox = layout.thumb_layout.hitbox.clone();
6590 let dragging_minimap = self.editor.read(cx).scroll_manager.is_dragging_minimap();
6591
6592 window.paint_layer(layout.thumb_layout.hitbox.bounds, |window| {
6593 window.with_element_namespace("minimap", |window| {
6594 layout.minimap.paint(window, cx);
6595 if let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds {
6596 let minimap_thumb_color = match layout.thumb_layout.thumb_state {
6597 ScrollbarThumbState::Idle => {
6598 cx.theme().colors().minimap_thumb_background
6599 }
6600 ScrollbarThumbState::Hovered => {
6601 cx.theme().colors().minimap_thumb_hover_background
6602 }
6603 ScrollbarThumbState::Dragging => {
6604 cx.theme().colors().minimap_thumb_active_background
6605 }
6606 };
6607 let minimap_thumb_border = match layout.thumb_border_style {
6608 MinimapThumbBorder::Full => Edges::all(ScrollbarLayout::BORDER_WIDTH),
6609 MinimapThumbBorder::LeftOnly => Edges {
6610 left: ScrollbarLayout::BORDER_WIDTH,
6611 ..Default::default()
6612 },
6613 MinimapThumbBorder::LeftOpen => Edges {
6614 right: ScrollbarLayout::BORDER_WIDTH,
6615 top: ScrollbarLayout::BORDER_WIDTH,
6616 bottom: ScrollbarLayout::BORDER_WIDTH,
6617 ..Default::default()
6618 },
6619 MinimapThumbBorder::RightOpen => Edges {
6620 left: ScrollbarLayout::BORDER_WIDTH,
6621 top: ScrollbarLayout::BORDER_WIDTH,
6622 bottom: ScrollbarLayout::BORDER_WIDTH,
6623 ..Default::default()
6624 },
6625 MinimapThumbBorder::None => Default::default(),
6626 };
6627
6628 window.paint_layer(minimap_hitbox.bounds, |window| {
6629 window.paint_quad(quad(
6630 thumb_bounds,
6631 Corners::default(),
6632 minimap_thumb_color,
6633 minimap_thumb_border,
6634 cx.theme().colors().minimap_thumb_border,
6635 BorderStyle::Solid,
6636 ));
6637 });
6638 }
6639 });
6640 });
6641
6642 if dragging_minimap {
6643 window.set_window_cursor_style(CursorStyle::Arrow);
6644 } else {
6645 window.set_cursor_style(CursorStyle::Arrow, &minimap_hitbox);
6646 }
6647
6648 let minimap_axis = ScrollbarAxis::Vertical;
6649 let pixels_per_line = (minimap_hitbox.size.height / layout.max_scroll_top)
6650 .min(layout.minimap_line_height);
6651
6652 let mut mouse_position = window.mouse_position();
6653
6654 window.on_mouse_event({
6655 let editor = self.editor.clone();
6656
6657 let minimap_hitbox = minimap_hitbox.clone();
6658
6659 move |event: &MouseMoveEvent, phase, window, cx| {
6660 if phase == DispatchPhase::Capture {
6661 return;
6662 }
6663
6664 editor.update(cx, |editor, cx| {
6665 if event.pressed_button == Some(MouseButton::Left)
6666 && editor.scroll_manager.is_dragging_minimap()
6667 {
6668 let old_position = mouse_position.along(minimap_axis);
6669 let new_position = event.position.along(minimap_axis);
6670 if (minimap_hitbox.origin.along(minimap_axis)
6671 ..minimap_hitbox.bottom_right().along(minimap_axis))
6672 .contains(&old_position)
6673 {
6674 let position =
6675 editor.scroll_position(cx).apply_along(minimap_axis, |p| {
6676 (p + (new_position - old_position) / pixels_per_line)
6677 .max(0.)
6678 });
6679 editor.set_scroll_position(position, window, cx);
6680 }
6681 cx.stop_propagation();
6682 } else {
6683 if minimap_hitbox.is_hovered(window) {
6684 editor.scroll_manager.set_is_hovering_minimap_thumb(
6685 !event.dragging()
6686 && layout
6687 .thumb_layout
6688 .thumb_bounds
6689 .is_some_and(|bounds| bounds.contains(&event.position)),
6690 cx,
6691 );
6692
6693 // Stop hover events from propagating to the
6694 // underlying editor if the minimap hitbox is hovered
6695 if !event.dragging() {
6696 cx.stop_propagation();
6697 }
6698 } else {
6699 editor.scroll_manager.hide_minimap_thumb(cx);
6700 }
6701 }
6702 mouse_position = event.position;
6703 });
6704 }
6705 });
6706
6707 if dragging_minimap {
6708 window.on_mouse_event({
6709 let editor = self.editor.clone();
6710 move |event: &MouseUpEvent, phase, window, cx| {
6711 if phase == DispatchPhase::Capture {
6712 return;
6713 }
6714
6715 editor.update(cx, |editor, cx| {
6716 if minimap_hitbox.is_hovered(window) {
6717 editor.scroll_manager.set_is_hovering_minimap_thumb(
6718 layout
6719 .thumb_layout
6720 .thumb_bounds
6721 .is_some_and(|bounds| bounds.contains(&event.position)),
6722 cx,
6723 );
6724 } else {
6725 editor.scroll_manager.hide_minimap_thumb(cx);
6726 }
6727 cx.stop_propagation();
6728 });
6729 }
6730 });
6731 } else {
6732 window.on_mouse_event({
6733 let editor = self.editor.clone();
6734
6735 move |event: &MouseDownEvent, phase, window, cx| {
6736 if phase == DispatchPhase::Capture || !minimap_hitbox.is_hovered(window) {
6737 return;
6738 }
6739
6740 let event_position = event.position;
6741
6742 let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds else {
6743 return;
6744 };
6745
6746 editor.update(cx, |editor, cx| {
6747 if !thumb_bounds.contains(&event_position) {
6748 let click_position =
6749 event_position.relative_to(&minimap_hitbox.origin).y;
6750
6751 let top_position = (click_position
6752 - thumb_bounds.size.along(minimap_axis) / 2.0)
6753 .max(Pixels::ZERO);
6754
6755 let scroll_offset = (layout.minimap_scroll_top
6756 + top_position / layout.minimap_line_height)
6757 .min(layout.max_scroll_top);
6758
6759 let scroll_position = editor
6760 .scroll_position(cx)
6761 .apply_along(minimap_axis, |_| scroll_offset);
6762 editor.set_scroll_position(scroll_position, window, cx);
6763 }
6764
6765 editor.scroll_manager.set_is_dragging_minimap(cx);
6766 cx.stop_propagation();
6767 });
6768 }
6769 });
6770 }
6771 }
6772 }
6773
6774 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6775 for mut block in layout.blocks.drain(..) {
6776 if block.overlaps_gutter {
6777 block.element.paint(window, cx);
6778 } else {
6779 let mut bounds = layout.hitbox.bounds;
6780 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
6781 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6782 block.element.paint(window, cx);
6783 })
6784 }
6785 }
6786 }
6787
6788 fn paint_edit_prediction_popover(
6789 &mut self,
6790 layout: &mut EditorLayout,
6791 window: &mut Window,
6792 cx: &mut App,
6793 ) {
6794 if let Some(edit_prediction_popover) = layout.edit_prediction_popover.as_mut() {
6795 edit_prediction_popover.paint(window, cx);
6796 }
6797 }
6798
6799 fn paint_mouse_context_menu(
6800 &mut self,
6801 layout: &mut EditorLayout,
6802 window: &mut Window,
6803 cx: &mut App,
6804 ) {
6805 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
6806 mouse_context_menu.paint(window, cx);
6807 }
6808 }
6809
6810 fn paint_scroll_wheel_listener(
6811 &mut self,
6812 layout: &EditorLayout,
6813 window: &mut Window,
6814 cx: &mut App,
6815 ) {
6816 window.on_mouse_event({
6817 let position_map = layout.position_map.clone();
6818 let editor = self.editor.clone();
6819 let hitbox = layout.hitbox.clone();
6820 let mut delta = ScrollDelta::default();
6821
6822 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
6823 // accidentally turn off their scrolling.
6824 let base_scroll_sensitivity =
6825 EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
6826
6827 // Use a minimum fast_scroll_sensitivity for same reason above
6828 let fast_scroll_sensitivity = EditorSettings::get_global(cx)
6829 .fast_scroll_sensitivity
6830 .max(0.01);
6831
6832 move |event: &ScrollWheelEvent, phase, window, cx| {
6833 let scroll_sensitivity = {
6834 if event.modifiers.alt {
6835 fast_scroll_sensitivity
6836 } else {
6837 base_scroll_sensitivity
6838 }
6839 };
6840
6841 if phase == DispatchPhase::Bubble && hitbox.should_handle_scroll(window) {
6842 delta = delta.coalesce(event.delta);
6843 editor.update(cx, |editor, cx| {
6844 let position_map: &PositionMap = &position_map;
6845
6846 let line_height = position_map.line_height;
6847 let max_glyph_advance = position_map.em_advance;
6848 let (delta, axis) = match delta {
6849 gpui::ScrollDelta::Pixels(mut pixels) => {
6850 //Trackpad
6851 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
6852 (pixels, axis)
6853 }
6854
6855 gpui::ScrollDelta::Lines(lines) => {
6856 //Not trackpad
6857 let pixels =
6858 point(lines.x * max_glyph_advance, lines.y * line_height);
6859 (pixels, None)
6860 }
6861 };
6862
6863 let current_scroll_position = position_map.snapshot.scroll_position();
6864 let x = (current_scroll_position.x * max_glyph_advance
6865 - (delta.x * scroll_sensitivity))
6866 / max_glyph_advance;
6867 let y = (current_scroll_position.y * line_height
6868 - (delta.y * scroll_sensitivity))
6869 / line_height;
6870 let mut scroll_position =
6871 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
6872 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
6873 if forbid_vertical_scroll {
6874 scroll_position.y = current_scroll_position.y;
6875 }
6876
6877 if scroll_position != current_scroll_position {
6878 editor.scroll(scroll_position, axis, window, cx);
6879 cx.stop_propagation();
6880 } else if y < 0. {
6881 // Due to clamping, we may fail to detect cases of overscroll to the top;
6882 // We want the scroll manager to get an update in such cases and detect the change of direction
6883 // on the next frame.
6884 cx.notify();
6885 }
6886 });
6887 }
6888 }
6889 });
6890 }
6891
6892 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
6893 if layout.mode.is_minimap() {
6894 return;
6895 }
6896
6897 self.paint_scroll_wheel_listener(layout, window, cx);
6898
6899 window.on_mouse_event({
6900 let position_map = layout.position_map.clone();
6901 let editor = self.editor.clone();
6902 let diff_hunk_range =
6903 layout
6904 .display_hunks
6905 .iter()
6906 .find_map(|(hunk, hunk_hitbox)| match hunk {
6907 DisplayDiffHunk::Folded { .. } => None,
6908 DisplayDiffHunk::Unfolded {
6909 multi_buffer_range, ..
6910 } => {
6911 if hunk_hitbox
6912 .as_ref()
6913 .map(|hitbox| hitbox.is_hovered(window))
6914 .unwrap_or(false)
6915 {
6916 Some(multi_buffer_range.clone())
6917 } else {
6918 None
6919 }
6920 }
6921 });
6922 let line_numbers = layout.line_numbers.clone();
6923
6924 move |event: &MouseDownEvent, phase, window, cx| {
6925 if phase == DispatchPhase::Bubble {
6926 match event.button {
6927 MouseButton::Left => editor.update(cx, |editor, cx| {
6928 let pending_mouse_down = editor
6929 .pending_mouse_down
6930 .get_or_insert_with(Default::default)
6931 .clone();
6932
6933 *pending_mouse_down.borrow_mut() = Some(event.clone());
6934
6935 Self::mouse_left_down(
6936 editor,
6937 event,
6938 diff_hunk_range.clone(),
6939 &position_map,
6940 line_numbers.as_ref(),
6941 window,
6942 cx,
6943 );
6944 }),
6945 MouseButton::Right => editor.update(cx, |editor, cx| {
6946 Self::mouse_right_down(editor, event, &position_map, window, cx);
6947 }),
6948 MouseButton::Middle => editor.update(cx, |editor, cx| {
6949 Self::mouse_middle_down(editor, event, &position_map, window, cx);
6950 }),
6951 _ => {}
6952 };
6953 }
6954 }
6955 });
6956
6957 window.on_mouse_event({
6958 let editor = self.editor.clone();
6959 let position_map = layout.position_map.clone();
6960
6961 move |event: &MouseUpEvent, phase, window, cx| {
6962 if phase == DispatchPhase::Bubble {
6963 editor.update(cx, |editor, cx| {
6964 Self::mouse_up(editor, event, &position_map, window, cx)
6965 });
6966 }
6967 }
6968 });
6969
6970 window.on_mouse_event({
6971 let editor = self.editor.clone();
6972 let position_map = layout.position_map.clone();
6973 let mut captured_mouse_down = None;
6974
6975 move |event: &MouseUpEvent, phase, window, cx| match phase {
6976 // Clear the pending mouse down during the capture phase,
6977 // so that it happens even if another event handler stops
6978 // propagation.
6979 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
6980 let pending_mouse_down = editor
6981 .pending_mouse_down
6982 .get_or_insert_with(Default::default)
6983 .clone();
6984
6985 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
6986 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
6987 captured_mouse_down = pending_mouse_down.take();
6988 window.refresh();
6989 }
6990 }),
6991 // Fire click handlers during the bubble phase.
6992 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
6993 if let Some(mouse_down) = captured_mouse_down.take() {
6994 let event = ClickEvent::Mouse(MouseClickEvent {
6995 down: mouse_down,
6996 up: event.clone(),
6997 });
6998 Self::click(editor, &event, &position_map, window, cx);
6999 }
7000 }),
7001 }
7002 });
7003
7004 window.on_mouse_event({
7005 let position_map = layout.position_map.clone();
7006 let editor = self.editor.clone();
7007
7008 move |event: &MouseMoveEvent, phase, window, cx| {
7009 if phase == DispatchPhase::Bubble {
7010 editor.update(cx, |editor, cx| {
7011 if editor.hover_state.focused(window, cx) {
7012 return;
7013 }
7014 if event.pressed_button == Some(MouseButton::Left)
7015 || event.pressed_button == Some(MouseButton::Middle)
7016 {
7017 Self::mouse_dragged(editor, event, &position_map, window, cx)
7018 }
7019
7020 Self::mouse_moved(editor, event, &position_map, window, cx)
7021 });
7022 }
7023 }
7024 });
7025 }
7026
7027 fn column_pixels(&self, column: usize, window: &Window) -> Pixels {
7028 let style = &self.style;
7029 let font_size = style.text.font_size.to_pixels(window.rem_size());
7030 let layout = window.text_system().shape_line(
7031 SharedString::from(" ".repeat(column)),
7032 font_size,
7033 &[TextRun {
7034 len: column,
7035 font: style.text.font(),
7036 color: Hsla::default(),
7037 background_color: None,
7038 underline: None,
7039 strikethrough: None,
7040 }],
7041 None,
7042 );
7043
7044 layout.width
7045 }
7046
7047 fn max_line_number_width(&self, snapshot: &EditorSnapshot, window: &mut Window) -> Pixels {
7048 let digit_count = snapshot.widest_line_number().ilog10() + 1;
7049 self.column_pixels(digit_count as usize, window)
7050 }
7051
7052 fn shape_line_number(
7053 &self,
7054 text: SharedString,
7055 color: Hsla,
7056 window: &mut Window,
7057 ) -> ShapedLine {
7058 let run = TextRun {
7059 len: text.len(),
7060 font: self.style.text.font(),
7061 color,
7062 background_color: None,
7063 underline: None,
7064 strikethrough: None,
7065 };
7066 window.text_system().shape_line(
7067 text,
7068 self.style.text.font_size.to_pixels(window.rem_size()),
7069 &[run],
7070 None,
7071 )
7072 }
7073
7074 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
7075 let unstaged = status.has_secondary_hunk();
7076 let unstaged_hollow = ProjectSettings::get_global(cx)
7077 .git
7078 .hunk_style
7079 .map_or(false, |style| {
7080 matches!(style, GitHunkStyleSetting::UnstagedHollow)
7081 });
7082
7083 unstaged == unstaged_hollow
7084 }
7085}
7086
7087fn header_jump_data(
7088 snapshot: &EditorSnapshot,
7089 block_row_start: DisplayRow,
7090 height: u32,
7091 for_excerpt: &ExcerptInfo,
7092) -> JumpData {
7093 let range = &for_excerpt.range;
7094 let buffer = &for_excerpt.buffer;
7095 let jump_anchor = range.primary.start;
7096
7097 let excerpt_start = range.context.start;
7098 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
7099 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
7100 0
7101 } else {
7102 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
7103 jump_position.row.saturating_sub(excerpt_start_point.row)
7104 };
7105
7106 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
7107 .saturating_sub(
7108 snapshot
7109 .scroll_anchor
7110 .scroll_position(&snapshot.display_snapshot)
7111 .y as u32,
7112 );
7113
7114 JumpData::MultiBufferPoint {
7115 excerpt_id: for_excerpt.id,
7116 anchor: jump_anchor,
7117 position: jump_position,
7118 line_offset_from_top,
7119 }
7120}
7121
7122pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
7123
7124impl AcceptEditPredictionBinding {
7125 pub fn keystroke(&self) -> Option<&Keystroke> {
7126 if let Some(binding) = self.0.as_ref() {
7127 match &binding.keystrokes() {
7128 [keystroke, ..] => Some(keystroke),
7129 _ => None,
7130 }
7131 } else {
7132 None
7133 }
7134 }
7135}
7136
7137fn prepaint_gutter_button(
7138 button: IconButton,
7139 row: DisplayRow,
7140 line_height: Pixels,
7141 gutter_dimensions: &GutterDimensions,
7142 scroll_pixel_position: gpui::Point<Pixels>,
7143 gutter_hitbox: &Hitbox,
7144 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
7145 window: &mut Window,
7146 cx: &mut App,
7147) -> AnyElement {
7148 let mut button = button.into_any_element();
7149
7150 let available_space = size(
7151 AvailableSpace::MinContent,
7152 AvailableSpace::Definite(line_height),
7153 );
7154 let indicator_size = button.layout_as_root(available_space, window, cx);
7155
7156 let blame_width = gutter_dimensions.git_blame_entries_width;
7157 let gutter_width = display_hunks
7158 .binary_search_by(|(hunk, _)| match hunk {
7159 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
7160 DisplayDiffHunk::Unfolded {
7161 display_row_range, ..
7162 } => {
7163 if display_row_range.end <= row {
7164 Ordering::Less
7165 } else if display_row_range.start > row {
7166 Ordering::Greater
7167 } else {
7168 Ordering::Equal
7169 }
7170 }
7171 })
7172 .ok()
7173 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
7174 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
7175
7176 let mut x = left_offset;
7177 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
7178 - indicator_size.width
7179 - left_offset;
7180 x += available_width / 2.;
7181
7182 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
7183 y += (line_height - indicator_size.height) / 2.;
7184
7185 button.prepaint_as_root(
7186 gutter_hitbox.origin + point(x, y),
7187 available_space,
7188 window,
7189 cx,
7190 );
7191 button
7192}
7193
7194fn render_inline_blame_entry(
7195 blame_entry: BlameEntry,
7196 style: &EditorStyle,
7197 cx: &mut App,
7198) -> Option<AnyElement> {
7199 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
7200 renderer.render_inline_blame_entry(&style.text, blame_entry, cx)
7201}
7202
7203fn render_blame_entry_popover(
7204 blame_entry: BlameEntry,
7205 scroll_handle: ScrollHandle,
7206 commit_message: Option<ParsedCommitMessage>,
7207 markdown: Entity<Markdown>,
7208 workspace: WeakEntity<Workspace>,
7209 blame: &Entity<GitBlame>,
7210 window: &mut Window,
7211 cx: &mut App,
7212) -> Option<AnyElement> {
7213 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
7214 let blame = blame.read(cx);
7215 let repository = blame.repository(cx)?.clone();
7216 renderer.render_blame_entry_popover(
7217 blame_entry,
7218 scroll_handle,
7219 commit_message,
7220 markdown,
7221 repository,
7222 workspace,
7223 window,
7224 cx,
7225 )
7226}
7227
7228fn render_blame_entry(
7229 ix: usize,
7230 blame: &Entity<GitBlame>,
7231 blame_entry: BlameEntry,
7232 style: &EditorStyle,
7233 last_used_color: &mut Option<(PlayerColor, Oid)>,
7234 editor: Entity<Editor>,
7235 workspace: Entity<Workspace>,
7236 renderer: Arc<dyn BlameRenderer>,
7237 cx: &mut App,
7238) -> Option<AnyElement> {
7239 let mut sha_color = cx
7240 .theme()
7241 .players()
7242 .color_for_participant(blame_entry.sha.into());
7243
7244 // If the last color we used is the same as the one we get for this line, but
7245 // the commit SHAs are different, then we try again to get a different color.
7246 match *last_used_color {
7247 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
7248 let index: u32 = blame_entry.sha.into();
7249 sha_color = cx.theme().players().color_for_participant(index + 1);
7250 }
7251 _ => {}
7252 };
7253 last_used_color.replace((sha_color, blame_entry.sha));
7254
7255 let blame = blame.read(cx);
7256 let details = blame.details_for_entry(&blame_entry);
7257 let repository = blame.repository(cx)?;
7258 renderer.render_blame_entry(
7259 &style.text,
7260 blame_entry,
7261 details,
7262 repository,
7263 workspace.downgrade(),
7264 editor,
7265 ix,
7266 sha_color.cursor,
7267 cx,
7268 )
7269}
7270
7271#[derive(Debug)]
7272pub(crate) struct LineWithInvisibles {
7273 fragments: SmallVec<[LineFragment; 1]>,
7274 invisibles: Vec<Invisible>,
7275 len: usize,
7276 pub(crate) width: Pixels,
7277 font_size: Pixels,
7278}
7279
7280enum LineFragment {
7281 Text(ShapedLine),
7282 Element {
7283 id: ChunkRendererId,
7284 element: Option<AnyElement>,
7285 size: Size<Pixels>,
7286 len: usize,
7287 },
7288}
7289
7290impl fmt::Debug for LineFragment {
7291 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
7292 match self {
7293 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
7294 LineFragment::Element { size, len, .. } => f
7295 .debug_struct("Element")
7296 .field("size", size)
7297 .field("len", len)
7298 .finish(),
7299 }
7300 }
7301}
7302
7303impl LineWithInvisibles {
7304 fn from_chunks<'a>(
7305 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
7306 editor_style: &EditorStyle,
7307 max_line_len: usize,
7308 max_line_count: usize,
7309 editor_mode: &EditorMode,
7310 text_width: Pixels,
7311 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
7312 window: &mut Window,
7313 cx: &mut App,
7314 ) -> Vec<Self> {
7315 let text_style = &editor_style.text;
7316 let mut layouts = Vec::with_capacity(max_line_count);
7317 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
7318 let mut line = String::new();
7319 let mut invisibles = Vec::new();
7320 let mut width = Pixels::ZERO;
7321 let mut len = 0;
7322 let mut styles = Vec::new();
7323 let mut non_whitespace_added = false;
7324 let mut row = 0;
7325 let mut line_exceeded_max_len = false;
7326 let font_size = text_style.font_size.to_pixels(window.rem_size());
7327
7328 let ellipsis = SharedString::from("⋯");
7329
7330 for highlighted_chunk in chunks.chain([HighlightedChunk {
7331 text: "\n",
7332 style: None,
7333 is_tab: false,
7334 is_inlay: false,
7335 replacement: None,
7336 }]) {
7337 if let Some(replacement) = highlighted_chunk.replacement {
7338 if !line.is_empty() {
7339 let shaped_line = window.text_system().shape_line(
7340 line.clone().into(),
7341 font_size,
7342 &styles,
7343 None,
7344 );
7345 width += shaped_line.width;
7346 len += shaped_line.len;
7347 fragments.push(LineFragment::Text(shaped_line));
7348 line.clear();
7349 styles.clear();
7350 }
7351
7352 match replacement {
7353 ChunkReplacement::Renderer(renderer) => {
7354 let available_width = if renderer.constrain_width {
7355 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
7356 ellipsis.clone()
7357 } else {
7358 SharedString::from(Arc::from(highlighted_chunk.text))
7359 };
7360 let shaped_line = window.text_system().shape_line(
7361 chunk,
7362 font_size,
7363 &[text_style.to_run(highlighted_chunk.text.len())],
7364 None,
7365 );
7366 AvailableSpace::Definite(shaped_line.width)
7367 } else {
7368 AvailableSpace::MinContent
7369 };
7370
7371 let mut element = (renderer.render)(&mut ChunkRendererContext {
7372 context: cx,
7373 window,
7374 max_width: text_width,
7375 });
7376 let line_height = text_style.line_height_in_pixels(window.rem_size());
7377 let size = element.layout_as_root(
7378 size(available_width, AvailableSpace::Definite(line_height)),
7379 window,
7380 cx,
7381 );
7382
7383 width += size.width;
7384 len += highlighted_chunk.text.len();
7385 fragments.push(LineFragment::Element {
7386 id: renderer.id,
7387 element: Some(element),
7388 size,
7389 len: highlighted_chunk.text.len(),
7390 });
7391 }
7392 ChunkReplacement::Str(x) => {
7393 let text_style = if let Some(style) = highlighted_chunk.style {
7394 Cow::Owned(text_style.clone().highlight(style))
7395 } else {
7396 Cow::Borrowed(text_style)
7397 };
7398
7399 let run = TextRun {
7400 len: x.len(),
7401 font: text_style.font(),
7402 color: text_style.color,
7403 background_color: text_style.background_color,
7404 underline: text_style.underline,
7405 strikethrough: text_style.strikethrough,
7406 };
7407 let line_layout = window
7408 .text_system()
7409 .shape_line(x, font_size, &[run], None)
7410 .with_len(highlighted_chunk.text.len());
7411
7412 width += line_layout.width;
7413 len += highlighted_chunk.text.len();
7414 fragments.push(LineFragment::Text(line_layout))
7415 }
7416 }
7417 } else {
7418 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
7419 if ix > 0 {
7420 let shaped_line = window.text_system().shape_line(
7421 line.clone().into(),
7422 font_size,
7423 &styles,
7424 None,
7425 );
7426 width += shaped_line.width;
7427 len += shaped_line.len;
7428 fragments.push(LineFragment::Text(shaped_line));
7429 layouts.push(Self {
7430 width: mem::take(&mut width),
7431 len: mem::take(&mut len),
7432 fragments: mem::take(&mut fragments),
7433 invisibles: std::mem::take(&mut invisibles),
7434 font_size,
7435 });
7436
7437 line.clear();
7438 styles.clear();
7439 row += 1;
7440 line_exceeded_max_len = false;
7441 non_whitespace_added = false;
7442 if row == max_line_count {
7443 return layouts;
7444 }
7445 }
7446
7447 if !line_chunk.is_empty() && !line_exceeded_max_len {
7448 let text_style = if let Some(style) = highlighted_chunk.style {
7449 Cow::Owned(text_style.clone().highlight(style))
7450 } else {
7451 Cow::Borrowed(text_style)
7452 };
7453
7454 if line.len() + line_chunk.len() > max_line_len {
7455 let mut chunk_len = max_line_len - line.len();
7456 while !line_chunk.is_char_boundary(chunk_len) {
7457 chunk_len -= 1;
7458 }
7459 line_chunk = &line_chunk[..chunk_len];
7460 line_exceeded_max_len = true;
7461 }
7462
7463 styles.push(TextRun {
7464 len: line_chunk.len(),
7465 font: text_style.font(),
7466 color: text_style.color,
7467 background_color: text_style.background_color,
7468 underline: text_style.underline,
7469 strikethrough: text_style.strikethrough,
7470 });
7471
7472 if editor_mode.is_full() && !highlighted_chunk.is_inlay {
7473 // Line wrap pads its contents with fake whitespaces,
7474 // avoid printing them
7475 let is_soft_wrapped = is_row_soft_wrapped(row);
7476 if highlighted_chunk.is_tab {
7477 if non_whitespace_added || !is_soft_wrapped {
7478 invisibles.push(Invisible::Tab {
7479 line_start_offset: line.len(),
7480 line_end_offset: line.len() + line_chunk.len(),
7481 });
7482 }
7483 } else {
7484 invisibles.extend(line_chunk.char_indices().filter_map(
7485 |(index, c)| {
7486 let is_whitespace = c.is_whitespace();
7487 non_whitespace_added |= !is_whitespace;
7488 if is_whitespace
7489 && (non_whitespace_added || !is_soft_wrapped)
7490 {
7491 Some(Invisible::Whitespace {
7492 line_offset: line.len() + index,
7493 })
7494 } else {
7495 None
7496 }
7497 },
7498 ))
7499 }
7500 }
7501
7502 line.push_str(line_chunk);
7503 }
7504 }
7505 }
7506 }
7507
7508 layouts
7509 }
7510
7511 fn prepaint(
7512 &mut self,
7513 line_height: Pixels,
7514 scroll_pixel_position: gpui::Point<Pixels>,
7515 row: DisplayRow,
7516 content_origin: gpui::Point<Pixels>,
7517 line_elements: &mut SmallVec<[AnyElement; 1]>,
7518 window: &mut Window,
7519 cx: &mut App,
7520 ) {
7521 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
7522 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
7523 for fragment in &mut self.fragments {
7524 match fragment {
7525 LineFragment::Text(line) => {
7526 fragment_origin.x += line.width;
7527 }
7528 LineFragment::Element { element, size, .. } => {
7529 let mut element = element
7530 .take()
7531 .expect("you can't prepaint LineWithInvisibles twice");
7532
7533 // Center the element vertically within the line.
7534 let mut element_origin = fragment_origin;
7535 element_origin.y += (line_height - size.height) / 2.;
7536 element.prepaint_at(element_origin, window, cx);
7537 line_elements.push(element);
7538
7539 fragment_origin.x += size.width;
7540 }
7541 }
7542 }
7543 }
7544
7545 fn draw(
7546 &self,
7547 layout: &EditorLayout,
7548 row: DisplayRow,
7549 content_origin: gpui::Point<Pixels>,
7550 whitespace_setting: ShowWhitespaceSetting,
7551 selection_ranges: &[Range<DisplayPoint>],
7552 window: &mut Window,
7553 cx: &mut App,
7554 ) {
7555 let line_height = layout.position_map.line_height;
7556 let line_y = line_height
7557 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
7558
7559 let mut fragment_origin =
7560 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
7561
7562 for fragment in &self.fragments {
7563 match fragment {
7564 LineFragment::Text(line) => {
7565 line.paint(fragment_origin, line_height, window, cx)
7566 .log_err();
7567 fragment_origin.x += line.width;
7568 }
7569 LineFragment::Element { size, .. } => {
7570 fragment_origin.x += size.width;
7571 }
7572 }
7573 }
7574
7575 self.draw_invisibles(
7576 selection_ranges,
7577 layout,
7578 content_origin,
7579 line_y,
7580 row,
7581 line_height,
7582 whitespace_setting,
7583 window,
7584 cx,
7585 );
7586 }
7587
7588 fn draw_background(
7589 &self,
7590 layout: &EditorLayout,
7591 row: DisplayRow,
7592 content_origin: gpui::Point<Pixels>,
7593 window: &mut Window,
7594 cx: &mut App,
7595 ) {
7596 let line_height = layout.position_map.line_height;
7597 let line_y = line_height
7598 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
7599
7600 let mut fragment_origin =
7601 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
7602
7603 for fragment in &self.fragments {
7604 match fragment {
7605 LineFragment::Text(line) => {
7606 line.paint_background(fragment_origin, line_height, window, cx)
7607 .log_err();
7608 fragment_origin.x += line.width;
7609 }
7610 LineFragment::Element { size, .. } => {
7611 fragment_origin.x += size.width;
7612 }
7613 }
7614 }
7615 }
7616
7617 fn draw_invisibles(
7618 &self,
7619 selection_ranges: &[Range<DisplayPoint>],
7620 layout: &EditorLayout,
7621 content_origin: gpui::Point<Pixels>,
7622 line_y: Pixels,
7623 row: DisplayRow,
7624 line_height: Pixels,
7625 whitespace_setting: ShowWhitespaceSetting,
7626 window: &mut Window,
7627 cx: &mut App,
7628 ) {
7629 let extract_whitespace_info = |invisible: &Invisible| {
7630 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
7631 Invisible::Tab {
7632 line_start_offset,
7633 line_end_offset,
7634 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
7635 Invisible::Whitespace { line_offset } => {
7636 (*line_offset, line_offset + 1, &layout.space_invisible)
7637 }
7638 };
7639
7640 let x_offset = self.x_for_index(token_offset);
7641 let invisible_offset =
7642 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
7643 let origin = content_origin
7644 + gpui::point(
7645 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
7646 line_y,
7647 );
7648
7649 (
7650 [token_offset, token_end_offset],
7651 Box::new(move |window: &mut Window, cx: &mut App| {
7652 invisible_symbol
7653 .paint(origin, line_height, window, cx)
7654 .log_err();
7655 }),
7656 )
7657 };
7658
7659 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
7660 match whitespace_setting {
7661 ShowWhitespaceSetting::None => (),
7662 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
7663 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
7664 let invisible_point = DisplayPoint::new(row, start as u32);
7665 if !selection_ranges
7666 .iter()
7667 .any(|region| region.start <= invisible_point && invisible_point < region.end)
7668 {
7669 return;
7670 }
7671
7672 paint(window, cx);
7673 }),
7674
7675 ShowWhitespaceSetting::Trailing => {
7676 let mut previous_start = self.len;
7677 for ([start, end], paint) in invisible_iter.rev() {
7678 if previous_start != end {
7679 break;
7680 }
7681 previous_start = start;
7682 paint(window, cx);
7683 }
7684 }
7685
7686 // For a whitespace to be on a boundary, any of the following conditions need to be met:
7687 // - It is a tab
7688 // - It is adjacent to an edge (start or end)
7689 // - It is adjacent to a whitespace (left or right)
7690 ShowWhitespaceSetting::Boundary => {
7691 // 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
7692 // the above cases.
7693 // Note: We zip in the original `invisibles` to check for tab equality
7694 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
7695 for (([start, end], paint), invisible) in
7696 invisible_iter.zip_eq(self.invisibles.iter())
7697 {
7698 let should_render = match (&last_seen, invisible) {
7699 (_, Invisible::Tab { .. }) => true,
7700 (Some((_, last_end, _)), _) => *last_end == start,
7701 _ => false,
7702 };
7703
7704 if should_render || start == 0 || end == self.len {
7705 paint(window, cx);
7706
7707 // Since we are scanning from the left, we will skip over the first available whitespace that is part
7708 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
7709 if let Some((should_render_last, last_end, paint_last)) = last_seen {
7710 // Note that we need to make sure that the last one is actually adjacent
7711 if !should_render_last && last_end == start {
7712 paint_last(window, cx);
7713 }
7714 }
7715 }
7716
7717 // Manually render anything within a selection
7718 let invisible_point = DisplayPoint::new(row, start as u32);
7719 if selection_ranges.iter().any(|region| {
7720 region.start <= invisible_point && invisible_point < region.end
7721 }) {
7722 paint(window, cx);
7723 }
7724
7725 last_seen = Some((should_render, end, paint));
7726 }
7727 }
7728 }
7729 }
7730
7731 pub fn x_for_index(&self, index: usize) -> Pixels {
7732 let mut fragment_start_x = Pixels::ZERO;
7733 let mut fragment_start_index = 0;
7734
7735 for fragment in &self.fragments {
7736 match fragment {
7737 LineFragment::Text(shaped_line) => {
7738 let fragment_end_index = fragment_start_index + shaped_line.len;
7739 if index < fragment_end_index {
7740 return fragment_start_x
7741 + shaped_line.x_for_index(index - fragment_start_index);
7742 }
7743 fragment_start_x += shaped_line.width;
7744 fragment_start_index = fragment_end_index;
7745 }
7746 LineFragment::Element { len, size, .. } => {
7747 let fragment_end_index = fragment_start_index + len;
7748 if index < fragment_end_index {
7749 return fragment_start_x;
7750 }
7751 fragment_start_x += size.width;
7752 fragment_start_index = fragment_end_index;
7753 }
7754 }
7755 }
7756
7757 fragment_start_x
7758 }
7759
7760 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
7761 let mut fragment_start_x = Pixels::ZERO;
7762 let mut fragment_start_index = 0;
7763
7764 for fragment in &self.fragments {
7765 match fragment {
7766 LineFragment::Text(shaped_line) => {
7767 let fragment_end_x = fragment_start_x + shaped_line.width;
7768 if x < fragment_end_x {
7769 return Some(
7770 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
7771 );
7772 }
7773 fragment_start_x = fragment_end_x;
7774 fragment_start_index += shaped_line.len;
7775 }
7776 LineFragment::Element { len, size, .. } => {
7777 let fragment_end_x = fragment_start_x + size.width;
7778 if x < fragment_end_x {
7779 return Some(fragment_start_index);
7780 }
7781 fragment_start_index += len;
7782 fragment_start_x = fragment_end_x;
7783 }
7784 }
7785 }
7786
7787 None
7788 }
7789
7790 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
7791 let mut fragment_start_index = 0;
7792
7793 for fragment in &self.fragments {
7794 match fragment {
7795 LineFragment::Text(shaped_line) => {
7796 let fragment_end_index = fragment_start_index + shaped_line.len;
7797 if index < fragment_end_index {
7798 return shaped_line.font_id_for_index(index - fragment_start_index);
7799 }
7800 fragment_start_index = fragment_end_index;
7801 }
7802 LineFragment::Element { len, .. } => {
7803 let fragment_end_index = fragment_start_index + len;
7804 if index < fragment_end_index {
7805 return None;
7806 }
7807 fragment_start_index = fragment_end_index;
7808 }
7809 }
7810 }
7811
7812 None
7813 }
7814}
7815
7816#[derive(Debug, Clone, Copy, PartialEq, Eq)]
7817enum Invisible {
7818 /// A tab character
7819 ///
7820 /// A tab character is internally represented by spaces (configured by the user's tab width)
7821 /// aligned to the nearest column, so it's necessary to store the start and end offset for
7822 /// adjacency checks.
7823 Tab {
7824 line_start_offset: usize,
7825 line_end_offset: usize,
7826 },
7827 Whitespace {
7828 line_offset: usize,
7829 },
7830}
7831
7832impl EditorElement {
7833 /// Returns the rem size to use when rendering the [`EditorElement`].
7834 ///
7835 /// This allows UI elements to scale based on the `buffer_font_size`.
7836 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
7837 match self.editor.read(cx).mode {
7838 EditorMode::Full {
7839 scale_ui_elements_with_buffer_font_size: true,
7840 ..
7841 }
7842 | EditorMode::Minimap { .. } => {
7843 let buffer_font_size = self.style.text.font_size;
7844 match buffer_font_size {
7845 AbsoluteLength::Pixels(pixels) => {
7846 let rem_size_scale = {
7847 // Our default UI font size is 14px on a 16px base scale.
7848 // This means the default UI font size is 0.875rems.
7849 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
7850
7851 // We then determine the delta between a single rem and the default font
7852 // size scale.
7853 let default_font_size_delta = 1. - default_font_size_scale;
7854
7855 // Finally, we add this delta to 1rem to get the scale factor that
7856 // should be used to scale up the UI.
7857 1. + default_font_size_delta
7858 };
7859
7860 Some(pixels * rem_size_scale)
7861 }
7862 AbsoluteLength::Rems(rems) => {
7863 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
7864 }
7865 }
7866 }
7867 // We currently use single-line and auto-height editors in UI contexts,
7868 // so we don't want to scale everything with the buffer font size, as it
7869 // ends up looking off.
7870 _ => None,
7871 }
7872 }
7873
7874 fn editor_with_selections(&self, cx: &App) -> Option<Entity<Editor>> {
7875 if let EditorMode::Minimap { parent } = self.editor.read(cx).mode() {
7876 parent.upgrade()
7877 } else {
7878 Some(self.editor.clone())
7879 }
7880 }
7881}
7882
7883impl Element for EditorElement {
7884 type RequestLayoutState = ();
7885 type PrepaintState = EditorLayout;
7886
7887 fn id(&self) -> Option<ElementId> {
7888 None
7889 }
7890
7891 fn source_location(&self) -> Option<&'static core::panic::Location<'static>> {
7892 None
7893 }
7894
7895 fn request_layout(
7896 &mut self,
7897 _: Option<&GlobalElementId>,
7898 _inspector_id: Option<&gpui::InspectorElementId>,
7899 window: &mut Window,
7900 cx: &mut App,
7901 ) -> (gpui::LayoutId, ()) {
7902 let rem_size = self.rem_size(cx);
7903 window.with_rem_size(rem_size, |window| {
7904 self.editor.update(cx, |editor, cx| {
7905 editor.set_style(self.style.clone(), window, cx);
7906
7907 let layout_id = match editor.mode {
7908 EditorMode::SingleLine => {
7909 let rem_size = window.rem_size();
7910 let height = self.style.text.line_height_in_pixels(rem_size);
7911 let mut style = Style::default();
7912 style.size.height = height.into();
7913 style.size.width = relative(1.).into();
7914 window.request_layout(style, None, cx)
7915 }
7916 EditorMode::AutoHeight {
7917 min_lines,
7918 max_lines,
7919 } => {
7920 let editor_handle = cx.entity();
7921 let max_line_number_width =
7922 self.max_line_number_width(&editor.snapshot(window, cx), window);
7923 window.request_measured_layout(
7924 Style::default(),
7925 move |known_dimensions, available_space, window, cx| {
7926 editor_handle
7927 .update(cx, |editor, cx| {
7928 compute_auto_height_layout(
7929 editor,
7930 min_lines,
7931 max_lines,
7932 max_line_number_width,
7933 known_dimensions,
7934 available_space.width,
7935 window,
7936 cx,
7937 )
7938 })
7939 .unwrap_or_default()
7940 },
7941 )
7942 }
7943 EditorMode::Minimap { .. } => {
7944 let mut style = Style::default();
7945 style.size.width = relative(1.).into();
7946 style.size.height = relative(1.).into();
7947 window.request_layout(style, None, cx)
7948 }
7949 EditorMode::Full {
7950 sized_by_content, ..
7951 } => {
7952 let mut style = Style::default();
7953 style.size.width = relative(1.).into();
7954 if sized_by_content {
7955 let snapshot = editor.snapshot(window, cx);
7956 let line_height =
7957 self.style.text.line_height_in_pixels(window.rem_size());
7958 let scroll_height =
7959 (snapshot.max_point().row().next_row().0 as f32) * line_height;
7960 style.size.height = scroll_height.into();
7961 } else {
7962 style.size.height = relative(1.).into();
7963 }
7964 window.request_layout(style, None, cx)
7965 }
7966 };
7967
7968 (layout_id, ())
7969 })
7970 })
7971 }
7972
7973 fn prepaint(
7974 &mut self,
7975 _: Option<&GlobalElementId>,
7976 _inspector_id: Option<&gpui::InspectorElementId>,
7977 bounds: Bounds<Pixels>,
7978 _: &mut Self::RequestLayoutState,
7979 window: &mut Window,
7980 cx: &mut App,
7981 ) -> Self::PrepaintState {
7982 let text_style = TextStyleRefinement {
7983 font_size: Some(self.style.text.font_size),
7984 line_height: Some(self.style.text.line_height),
7985 ..Default::default()
7986 };
7987
7988 let is_minimap = self.editor.read(cx).mode.is_minimap();
7989
7990 if !is_minimap {
7991 let focus_handle = self.editor.focus_handle(cx);
7992 window.set_view_id(self.editor.entity_id());
7993 window.set_focus_handle(&focus_handle, cx);
7994 }
7995
7996 let rem_size = self.rem_size(cx);
7997 window.with_rem_size(rem_size, |window| {
7998 window.with_text_style(Some(text_style), |window| {
7999 window.with_content_mask(Some(ContentMask { bounds }), |window| {
8000 let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| {
8001 (editor.snapshot(window, cx), editor.read_only(cx))
8002 });
8003 let style = self.style.clone();
8004
8005 let rem_size = window.rem_size();
8006 let font_id = window.text_system().resolve_font(&style.text.font());
8007 let font_size = style.text.font_size.to_pixels(rem_size);
8008 let line_height = style.text.line_height_in_pixels(rem_size);
8009 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8010 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
8011 let glyph_grid_cell = size(em_advance, line_height);
8012
8013 let gutter_dimensions = snapshot
8014 .gutter_dimensions(
8015 font_id,
8016 font_size,
8017 self.max_line_number_width(&snapshot, window),
8018 cx,
8019 )
8020 .or_else(|| {
8021 self.editor.read(cx).offset_content.then(|| {
8022 GutterDimensions::default_with_margin(font_id, font_size, cx)
8023 })
8024 })
8025 .unwrap_or_default();
8026 let text_width = bounds.size.width - gutter_dimensions.width;
8027
8028 let settings = EditorSettings::get_global(cx);
8029 let scrollbars_shown = settings.scrollbar.show != ShowScrollbar::Never;
8030 let vertical_scrollbar_width = (scrollbars_shown
8031 && settings.scrollbar.axes.vertical
8032 && self.editor.read(cx).show_scrollbars.vertical)
8033 .then_some(style.scrollbar_width)
8034 .unwrap_or_default();
8035 let minimap_width = self
8036 .get_minimap_width(
8037 &settings.minimap,
8038 scrollbars_shown,
8039 text_width,
8040 em_width,
8041 font_size,
8042 rem_size,
8043 cx,
8044 )
8045 .unwrap_or_default();
8046
8047 let right_margin = minimap_width + vertical_scrollbar_width;
8048
8049 let editor_width =
8050 text_width - gutter_dimensions.margin - 2 * em_width - right_margin;
8051 let editor_margins = EditorMargins {
8052 gutter: gutter_dimensions,
8053 right: right_margin,
8054 };
8055
8056 snapshot = self.editor.update(cx, |editor, cx| {
8057 editor.last_bounds = Some(bounds);
8058 editor.gutter_dimensions = gutter_dimensions;
8059 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
8060 editor.set_visible_column_count(editor_width / em_advance);
8061
8062 if matches!(
8063 editor.mode,
8064 EditorMode::AutoHeight { .. } | EditorMode::Minimap { .. }
8065 ) {
8066 snapshot
8067 } else {
8068 let wrap_width_for = |column: u32| (column as f32 * em_advance).ceil();
8069 let wrap_width = match editor.soft_wrap_mode(cx) {
8070 SoftWrap::GitDiff => None,
8071 SoftWrap::None => Some(wrap_width_for(MAX_LINE_LEN as u32 / 2)),
8072 SoftWrap::EditorWidth => Some(editor_width),
8073 SoftWrap::Column(column) => Some(wrap_width_for(column)),
8074 SoftWrap::Bounded(column) => {
8075 Some(editor_width.min(wrap_width_for(column)))
8076 }
8077 };
8078
8079 if editor.set_wrap_width(wrap_width, cx) {
8080 editor.snapshot(window, cx)
8081 } else {
8082 snapshot
8083 }
8084 }
8085 });
8086
8087 let hitbox = window.insert_hitbox(bounds, HitboxBehavior::Normal);
8088 let gutter_hitbox = window.insert_hitbox(
8089 gutter_bounds(bounds, gutter_dimensions),
8090 HitboxBehavior::Normal,
8091 );
8092 let text_hitbox = window.insert_hitbox(
8093 Bounds {
8094 origin: gutter_hitbox.top_right(),
8095 size: size(text_width, bounds.size.height),
8096 },
8097 HitboxBehavior::Normal,
8098 );
8099
8100 // Offset the content_bounds from the text_bounds by the gutter margin (which
8101 // is roughly half a character wide) to make hit testing work more like how we want.
8102 let content_offset = point(editor_margins.gutter.margin, Pixels::ZERO);
8103 let content_origin = text_hitbox.origin + content_offset;
8104
8105 let height_in_lines = bounds.size.height / line_height;
8106 let max_row = snapshot.max_point().row().as_f32();
8107
8108 // The max scroll position for the top of the window
8109 let max_scroll_top = if matches!(
8110 snapshot.mode,
8111 EditorMode::SingleLine { .. }
8112 | EditorMode::AutoHeight { .. }
8113 | EditorMode::Full {
8114 sized_by_content: true,
8115 ..
8116 }
8117 ) {
8118 (max_row - height_in_lines + 1.).max(0.)
8119 } else {
8120 let settings = EditorSettings::get_global(cx);
8121 match settings.scroll_beyond_last_line {
8122 ScrollBeyondLastLine::OnePage => max_row,
8123 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
8124 ScrollBeyondLastLine::VerticalScrollMargin => {
8125 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
8126 .max(0.)
8127 }
8128 }
8129 };
8130
8131 let (
8132 autoscroll_request,
8133 autoscroll_containing_element,
8134 needs_horizontal_autoscroll,
8135 ) = self.editor.update(cx, |editor, cx| {
8136 let autoscroll_request = editor.scroll_manager.take_autoscroll_request();
8137
8138 let autoscroll_containing_element =
8139 autoscroll_request.is_some() || editor.has_pending_selection();
8140
8141 let (needs_horizontal_autoscroll, was_scrolled) = editor
8142 .autoscroll_vertically(
8143 bounds,
8144 line_height,
8145 max_scroll_top,
8146 autoscroll_request,
8147 window,
8148 cx,
8149 );
8150 if was_scrolled.0 {
8151 snapshot = editor.snapshot(window, cx);
8152 }
8153 (
8154 autoscroll_request,
8155 autoscroll_containing_element,
8156 needs_horizontal_autoscroll,
8157 )
8158 });
8159
8160 let mut scroll_position = snapshot.scroll_position();
8161 // The scroll position is a fractional point, the whole number of which represents
8162 // the top of the window in terms of display rows.
8163 let start_row = DisplayRow(scroll_position.y as u32);
8164 let max_row = snapshot.max_point().row();
8165 let end_row = cmp::min(
8166 (scroll_position.y + height_in_lines).ceil() as u32,
8167 max_row.next_row().0,
8168 );
8169 let end_row = DisplayRow(end_row);
8170
8171 let row_infos = snapshot
8172 .row_infos(start_row)
8173 .take((start_row..end_row).len())
8174 .collect::<Vec<RowInfo>>();
8175 let is_row_soft_wrapped = |row: usize| {
8176 row_infos
8177 .get(row)
8178 .map_or(true, |info| info.buffer_row.is_none())
8179 };
8180
8181 let start_anchor = if start_row == Default::default() {
8182 Anchor::min()
8183 } else {
8184 snapshot.buffer_snapshot.anchor_before(
8185 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
8186 )
8187 };
8188 let end_anchor = if end_row > max_row {
8189 Anchor::max()
8190 } else {
8191 snapshot.buffer_snapshot.anchor_before(
8192 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
8193 )
8194 };
8195
8196 let mut highlighted_rows = self
8197 .editor
8198 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
8199
8200 let is_light = cx.theme().appearance().is_light();
8201
8202 for (ix, row_info) in row_infos.iter().enumerate() {
8203 let Some(diff_status) = row_info.diff_status else {
8204 continue;
8205 };
8206
8207 let background_color = match diff_status.kind {
8208 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
8209 DiffHunkStatusKind::Deleted => {
8210 cx.theme().colors().version_control_deleted
8211 }
8212 DiffHunkStatusKind::Modified => {
8213 debug_panic!("modified diff status for row info");
8214 continue;
8215 }
8216 };
8217
8218 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
8219
8220 let hollow_highlight = LineHighlight {
8221 background: (background_color.opacity(if is_light {
8222 0.08
8223 } else {
8224 0.06
8225 }))
8226 .into(),
8227 border: Some(if is_light {
8228 background_color.opacity(0.48)
8229 } else {
8230 background_color.opacity(0.36)
8231 }),
8232 include_gutter: true,
8233 type_id: None,
8234 };
8235
8236 let filled_highlight = LineHighlight {
8237 background: solid_background(background_color.opacity(hunk_opacity)),
8238 border: None,
8239 include_gutter: true,
8240 type_id: None,
8241 };
8242
8243 let background = if Self::diff_hunk_hollow(diff_status, cx) {
8244 hollow_highlight
8245 } else {
8246 filled_highlight
8247 };
8248
8249 highlighted_rows
8250 .entry(start_row + DisplayRow(ix as u32))
8251 .or_insert(background);
8252 }
8253
8254 let highlighted_ranges = self
8255 .editor_with_selections(cx)
8256 .map(|editor| {
8257 editor.read(cx).background_highlights_in_range(
8258 start_anchor..end_anchor,
8259 &snapshot.display_snapshot,
8260 cx.theme(),
8261 )
8262 })
8263 .unwrap_or_default();
8264 let highlighted_gutter_ranges =
8265 self.editor.read(cx).gutter_highlights_in_range(
8266 start_anchor..end_anchor,
8267 &snapshot.display_snapshot,
8268 cx,
8269 );
8270
8271 let document_colors = self
8272 .editor
8273 .read(cx)
8274 .colors
8275 .as_ref()
8276 .map(|colors| colors.editor_display_highlights(&snapshot));
8277 let redacted_ranges = self.editor.read(cx).redacted_ranges(
8278 start_anchor..end_anchor,
8279 &snapshot.display_snapshot,
8280 cx,
8281 );
8282
8283 let (local_selections, selected_buffer_ids): (
8284 Vec<Selection<Point>>,
8285 Vec<BufferId>,
8286 ) = self
8287 .editor_with_selections(cx)
8288 .map(|editor| {
8289 editor.update(cx, |editor, cx| {
8290 let all_selections = editor.selections.all::<Point>(cx);
8291 let selected_buffer_ids = if editor.is_singleton(cx) {
8292 Vec::new()
8293 } else {
8294 let mut selected_buffer_ids =
8295 Vec::with_capacity(all_selections.len());
8296
8297 for selection in all_selections {
8298 for buffer_id in snapshot
8299 .buffer_snapshot
8300 .buffer_ids_for_range(selection.range())
8301 {
8302 if selected_buffer_ids.last() != Some(&buffer_id) {
8303 selected_buffer_ids.push(buffer_id);
8304 }
8305 }
8306 }
8307
8308 selected_buffer_ids
8309 };
8310
8311 let mut selections = editor
8312 .selections
8313 .disjoint_in_range(start_anchor..end_anchor, cx);
8314 selections.extend(editor.selections.pending(cx));
8315
8316 (selections, selected_buffer_ids)
8317 })
8318 })
8319 .unwrap_or_default();
8320
8321 let (selections, mut active_rows, newest_selection_head) = self
8322 .layout_selections(
8323 start_anchor,
8324 end_anchor,
8325 &local_selections,
8326 &snapshot,
8327 start_row,
8328 end_row,
8329 window,
8330 cx,
8331 );
8332 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
8333 editor.active_breakpoints(start_row..end_row, window, cx)
8334 });
8335 for (display_row, (_, bp, state)) in &breakpoint_rows {
8336 if bp.is_enabled() && state.is_none_or(|s| s.verified) {
8337 active_rows.entry(*display_row).or_default().breakpoint = true;
8338 }
8339 }
8340
8341 let line_numbers = self.layout_line_numbers(
8342 Some(&gutter_hitbox),
8343 gutter_dimensions,
8344 line_height,
8345 scroll_position,
8346 start_row..end_row,
8347 &row_infos,
8348 &active_rows,
8349 newest_selection_head,
8350 &snapshot,
8351 window,
8352 cx,
8353 );
8354
8355 // We add the gutter breakpoint indicator to breakpoint_rows after painting
8356 // line numbers so we don't paint a line number debug accent color if a user
8357 // has their mouse over that line when a breakpoint isn't there
8358 self.editor.update(cx, |editor, _| {
8359 if let Some(phantom_breakpoint) = &mut editor
8360 .gutter_breakpoint_indicator
8361 .0
8362 .filter(|phantom_breakpoint| phantom_breakpoint.is_active)
8363 {
8364 // Is there a non-phantom breakpoint on this line?
8365 phantom_breakpoint.collides_with_existing_breakpoint = true;
8366 breakpoint_rows
8367 .entry(phantom_breakpoint.display_row)
8368 .or_insert_with(|| {
8369 let position = snapshot.display_point_to_anchor(
8370 DisplayPoint::new(phantom_breakpoint.display_row, 0),
8371 Bias::Right,
8372 );
8373 let breakpoint = Breakpoint::new_standard();
8374 phantom_breakpoint.collides_with_existing_breakpoint = false;
8375 (position, breakpoint, None)
8376 });
8377 }
8378 });
8379
8380 let mut expand_toggles =
8381 window.with_element_namespace("expand_toggles", |window| {
8382 self.layout_expand_toggles(
8383 &gutter_hitbox,
8384 gutter_dimensions,
8385 em_width,
8386 line_height,
8387 scroll_position,
8388 &row_infos,
8389 window,
8390 cx,
8391 )
8392 });
8393
8394 let mut crease_toggles =
8395 window.with_element_namespace("crease_toggles", |window| {
8396 self.layout_crease_toggles(
8397 start_row..end_row,
8398 &row_infos,
8399 &active_rows,
8400 &snapshot,
8401 window,
8402 cx,
8403 )
8404 });
8405 let crease_trailers =
8406 window.with_element_namespace("crease_trailers", |window| {
8407 self.layout_crease_trailers(
8408 row_infos.iter().copied(),
8409 &snapshot,
8410 window,
8411 cx,
8412 )
8413 });
8414
8415 let display_hunks = self.layout_gutter_diff_hunks(
8416 line_height,
8417 &gutter_hitbox,
8418 start_row..end_row,
8419 &snapshot,
8420 window,
8421 cx,
8422 );
8423
8424 let mut line_layouts = Self::layout_lines(
8425 start_row..end_row,
8426 &snapshot,
8427 &self.style,
8428 editor_width,
8429 is_row_soft_wrapped,
8430 window,
8431 cx,
8432 );
8433 let new_renderer_widths = (!is_minimap).then(|| {
8434 line_layouts
8435 .iter()
8436 .flat_map(|layout| &layout.fragments)
8437 .filter_map(|fragment| {
8438 if let LineFragment::Element { id, size, .. } = fragment {
8439 Some((*id, size.width))
8440 } else {
8441 None
8442 }
8443 })
8444 });
8445 if new_renderer_widths.is_some_and(|new_renderer_widths| {
8446 self.editor.update(cx, |editor, cx| {
8447 editor.update_renderer_widths(new_renderer_widths, cx)
8448 })
8449 }) {
8450 // If the fold widths have changed, we need to prepaint
8451 // the element again to account for any changes in
8452 // wrapping.
8453 return self.prepaint(None, _inspector_id, bounds, &mut (), window, cx);
8454 }
8455
8456 let longest_line_blame_width = self
8457 .editor
8458 .update(cx, |editor, cx| {
8459 if !editor.show_git_blame_inline {
8460 return None;
8461 }
8462 let blame = editor.blame.as_ref()?;
8463 let blame_entry = blame
8464 .update(cx, |blame, cx| {
8465 let row_infos =
8466 snapshot.row_infos(snapshot.longest_row()).next()?;
8467 blame.blame_for_rows(&[row_infos], cx).next()
8468 })
8469 .flatten()?;
8470 let mut element = render_inline_blame_entry(blame_entry, &style, cx)?;
8471 let inline_blame_padding = ProjectSettings::get_global(cx)
8472 .git
8473 .inline_blame
8474 .unwrap_or_default()
8475 .padding
8476 as f32
8477 * em_advance;
8478 Some(
8479 element
8480 .layout_as_root(AvailableSpace::min_size(), window, cx)
8481 .width
8482 + inline_blame_padding,
8483 )
8484 })
8485 .unwrap_or(Pixels::ZERO);
8486
8487 let longest_line_width = layout_line(
8488 snapshot.longest_row(),
8489 &snapshot,
8490 &style,
8491 editor_width,
8492 is_row_soft_wrapped,
8493 window,
8494 cx,
8495 )
8496 .width;
8497
8498 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
8499 text_hitbox.bounds,
8500 glyph_grid_cell,
8501 size(longest_line_width, max_row.as_f32() * line_height),
8502 longest_line_blame_width,
8503 EditorSettings::get_global(cx),
8504 );
8505
8506 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
8507
8508 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
8509 snapshot.sticky_header_excerpt(scroll_position.y)
8510 } else {
8511 None
8512 };
8513 let sticky_header_excerpt_id =
8514 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
8515
8516 let blocks = (!is_minimap)
8517 .then(|| {
8518 window.with_element_namespace("blocks", |window| {
8519 self.render_blocks(
8520 start_row..end_row,
8521 &snapshot,
8522 &hitbox,
8523 &text_hitbox,
8524 editor_width,
8525 &mut scroll_width,
8526 &editor_margins,
8527 em_width,
8528 gutter_dimensions.full_width(),
8529 line_height,
8530 &mut line_layouts,
8531 &local_selections,
8532 &selected_buffer_ids,
8533 is_row_soft_wrapped,
8534 sticky_header_excerpt_id,
8535 window,
8536 cx,
8537 )
8538 })
8539 })
8540 .unwrap_or_else(|| Ok((Vec::default(), HashMap::default())));
8541 let (mut blocks, row_block_types) = match blocks {
8542 Ok(blocks) => blocks,
8543 Err(resized_blocks) => {
8544 self.editor.update(cx, |editor, cx| {
8545 editor.resize_blocks(
8546 resized_blocks,
8547 autoscroll_request.map(|(autoscroll, _)| autoscroll),
8548 cx,
8549 )
8550 });
8551 return self.prepaint(None, _inspector_id, bounds, &mut (), window, cx);
8552 }
8553 };
8554
8555 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
8556 window.with_element_namespace("blocks", |window| {
8557 self.layout_sticky_buffer_header(
8558 sticky_header_excerpt,
8559 scroll_position.y,
8560 line_height,
8561 right_margin,
8562 &snapshot,
8563 &hitbox,
8564 &selected_buffer_ids,
8565 &blocks,
8566 window,
8567 cx,
8568 )
8569 })
8570 });
8571
8572 let start_buffer_row =
8573 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
8574 let end_buffer_row =
8575 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
8576
8577 let scroll_max = point(
8578 ((scroll_width - editor_width) / em_advance).max(0.0),
8579 max_scroll_top,
8580 );
8581
8582 self.editor.update(cx, |editor, cx| {
8583 if editor.scroll_manager.clamp_scroll_left(scroll_max.x) {
8584 scroll_position.x = scroll_position.x.min(scroll_max.x);
8585 }
8586
8587 if needs_horizontal_autoscroll.0
8588 && let Some(new_scroll_position) = editor.autoscroll_horizontally(
8589 start_row,
8590 editor_width,
8591 scroll_width,
8592 em_advance,
8593 &line_layouts,
8594 autoscroll_request,
8595 window,
8596 cx,
8597 )
8598 {
8599 scroll_position = new_scroll_position;
8600 }
8601 });
8602
8603 let scroll_pixel_position = point(
8604 scroll_position.x * em_advance,
8605 scroll_position.y * line_height,
8606 );
8607 let indent_guides = self.layout_indent_guides(
8608 content_origin,
8609 text_hitbox.origin,
8610 start_buffer_row..end_buffer_row,
8611 scroll_pixel_position,
8612 line_height,
8613 &snapshot,
8614 window,
8615 cx,
8616 );
8617
8618 let crease_trailers =
8619 window.with_element_namespace("crease_trailers", |window| {
8620 self.prepaint_crease_trailers(
8621 crease_trailers,
8622 &line_layouts,
8623 line_height,
8624 content_origin,
8625 scroll_pixel_position,
8626 em_width,
8627 window,
8628 cx,
8629 )
8630 });
8631
8632 let (edit_prediction_popover, edit_prediction_popover_origin) = self
8633 .editor
8634 .update(cx, |editor, cx| {
8635 editor.render_edit_prediction_popover(
8636 &text_hitbox.bounds,
8637 content_origin,
8638 right_margin,
8639 &snapshot,
8640 start_row..end_row,
8641 scroll_position.y,
8642 scroll_position.y + height_in_lines,
8643 &line_layouts,
8644 line_height,
8645 scroll_pixel_position,
8646 newest_selection_head,
8647 editor_width,
8648 &style,
8649 window,
8650 cx,
8651 )
8652 })
8653 .unzip();
8654
8655 let mut inline_diagnostics = self.layout_inline_diagnostics(
8656 &line_layouts,
8657 &crease_trailers,
8658 &row_block_types,
8659 content_origin,
8660 scroll_pixel_position,
8661 edit_prediction_popover_origin,
8662 start_row,
8663 end_row,
8664 line_height,
8665 em_width,
8666 &style,
8667 window,
8668 cx,
8669 );
8670
8671 let mut inline_blame_layout = None;
8672 let mut inline_code_actions = None;
8673 if let Some(newest_selection_head) = newest_selection_head {
8674 let display_row = newest_selection_head.row();
8675 if (start_row..end_row).contains(&display_row)
8676 && !row_block_types.contains_key(&display_row)
8677 {
8678 inline_code_actions = self.layout_inline_code_actions(
8679 newest_selection_head,
8680 content_origin,
8681 scroll_pixel_position,
8682 line_height,
8683 &snapshot,
8684 window,
8685 cx,
8686 );
8687
8688 let line_ix = display_row.minus(start_row) as usize;
8689 if let (Some(row_info), Some(line_layout), Some(crease_trailer)) = (
8690 row_infos.get(line_ix),
8691 line_layouts.get(line_ix),
8692 crease_trailers.get(line_ix),
8693 ) {
8694 let crease_trailer_layout = crease_trailer.as_ref();
8695 if let Some(layout) = self.layout_inline_blame(
8696 display_row,
8697 row_info,
8698 line_layout,
8699 crease_trailer_layout,
8700 em_width,
8701 content_origin,
8702 scroll_pixel_position,
8703 line_height,
8704 &text_hitbox,
8705 window,
8706 cx,
8707 ) {
8708 inline_blame_layout = Some(layout);
8709 // Blame overrides inline diagnostics
8710 inline_diagnostics.remove(&display_row);
8711 }
8712 } else {
8713 log::error!(
8714 "bug: line_ix {} is out of bounds - row_infos.len(): {}, \
8715 line_layouts.len(): {}, \
8716 crease_trailers.len(): {}",
8717 line_ix,
8718 row_infos.len(),
8719 line_layouts.len(),
8720 crease_trailers.len(),
8721 );
8722 }
8723 }
8724 }
8725
8726 let blamed_display_rows = self.layout_blame_entries(
8727 &row_infos,
8728 em_width,
8729 scroll_position,
8730 line_height,
8731 &gutter_hitbox,
8732 gutter_dimensions.git_blame_entries_width,
8733 window,
8734 cx,
8735 );
8736
8737 let line_elements = self.prepaint_lines(
8738 start_row,
8739 &mut line_layouts,
8740 line_height,
8741 scroll_pixel_position,
8742 content_origin,
8743 window,
8744 cx,
8745 );
8746
8747 window.with_element_namespace("blocks", |window| {
8748 self.layout_blocks(
8749 &mut blocks,
8750 &hitbox,
8751 line_height,
8752 scroll_pixel_position,
8753 window,
8754 cx,
8755 );
8756 });
8757
8758 let cursors = self.collect_cursors(&snapshot, cx);
8759 let visible_row_range = start_row..end_row;
8760 let non_visible_cursors = cursors
8761 .iter()
8762 .any(|c| !visible_row_range.contains(&c.0.row()));
8763
8764 let visible_cursors = self.layout_visible_cursors(
8765 &snapshot,
8766 &selections,
8767 &row_block_types,
8768 start_row..end_row,
8769 &line_layouts,
8770 &text_hitbox,
8771 content_origin,
8772 scroll_position,
8773 scroll_pixel_position,
8774 line_height,
8775 em_width,
8776 em_advance,
8777 autoscroll_containing_element,
8778 window,
8779 cx,
8780 );
8781
8782 let scrollbars_layout = self.layout_scrollbars(
8783 &snapshot,
8784 &scrollbar_layout_information,
8785 content_offset,
8786 scroll_position,
8787 non_visible_cursors,
8788 right_margin,
8789 editor_width,
8790 window,
8791 cx,
8792 );
8793
8794 let gutter_settings = EditorSettings::get_global(cx).gutter;
8795
8796 let context_menu_layout =
8797 if let Some(newest_selection_head) = newest_selection_head {
8798 let newest_selection_point =
8799 newest_selection_head.to_point(&snapshot.display_snapshot);
8800 if (start_row..end_row).contains(&newest_selection_head.row()) {
8801 self.layout_cursor_popovers(
8802 line_height,
8803 &text_hitbox,
8804 content_origin,
8805 right_margin,
8806 start_row,
8807 scroll_pixel_position,
8808 &line_layouts,
8809 newest_selection_head,
8810 newest_selection_point,
8811 &style,
8812 window,
8813 cx,
8814 )
8815 } else {
8816 None
8817 }
8818 } else {
8819 None
8820 };
8821
8822 self.layout_gutter_menu(
8823 line_height,
8824 &text_hitbox,
8825 content_origin,
8826 right_margin,
8827 scroll_pixel_position,
8828 gutter_dimensions.width - gutter_dimensions.left_padding,
8829 window,
8830 cx,
8831 );
8832
8833 let test_indicators = if gutter_settings.runnables {
8834 self.layout_run_indicators(
8835 line_height,
8836 start_row..end_row,
8837 &row_infos,
8838 scroll_pixel_position,
8839 &gutter_dimensions,
8840 &gutter_hitbox,
8841 &display_hunks,
8842 &snapshot,
8843 &mut breakpoint_rows,
8844 window,
8845 cx,
8846 )
8847 } else {
8848 Vec::new()
8849 };
8850
8851 let show_breakpoints = snapshot
8852 .show_breakpoints
8853 .unwrap_or(gutter_settings.breakpoints);
8854 let breakpoints = if show_breakpoints {
8855 self.layout_breakpoints(
8856 line_height,
8857 start_row..end_row,
8858 scroll_pixel_position,
8859 &gutter_dimensions,
8860 &gutter_hitbox,
8861 &display_hunks,
8862 &snapshot,
8863 breakpoint_rows,
8864 &row_infos,
8865 window,
8866 cx,
8867 )
8868 } else {
8869 Vec::new()
8870 };
8871
8872 self.layout_signature_help(
8873 &hitbox,
8874 content_origin,
8875 scroll_pixel_position,
8876 newest_selection_head,
8877 start_row,
8878 &line_layouts,
8879 line_height,
8880 em_width,
8881 context_menu_layout,
8882 window,
8883 cx,
8884 );
8885
8886 if !cx.has_active_drag() {
8887 self.layout_hover_popovers(
8888 &snapshot,
8889 &hitbox,
8890 start_row..end_row,
8891 content_origin,
8892 scroll_pixel_position,
8893 &line_layouts,
8894 line_height,
8895 em_width,
8896 context_menu_layout,
8897 window,
8898 cx,
8899 );
8900 }
8901
8902 let mouse_context_menu = self.layout_mouse_context_menu(
8903 &snapshot,
8904 start_row..end_row,
8905 content_origin,
8906 window,
8907 cx,
8908 );
8909
8910 window.with_element_namespace("crease_toggles", |window| {
8911 self.prepaint_crease_toggles(
8912 &mut crease_toggles,
8913 line_height,
8914 &gutter_dimensions,
8915 gutter_settings,
8916 scroll_pixel_position,
8917 &gutter_hitbox,
8918 window,
8919 cx,
8920 )
8921 });
8922
8923 window.with_element_namespace("expand_toggles", |window| {
8924 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
8925 });
8926
8927 let wrap_guides = self.layout_wrap_guides(
8928 em_advance,
8929 scroll_position,
8930 content_origin,
8931 scrollbars_layout.as_ref(),
8932 vertical_scrollbar_width,
8933 &hitbox,
8934 window,
8935 cx,
8936 );
8937
8938 let minimap = window.with_element_namespace("minimap", |window| {
8939 self.layout_minimap(
8940 &snapshot,
8941 minimap_width,
8942 scroll_position,
8943 &scrollbar_layout_information,
8944 scrollbars_layout.as_ref(),
8945 window,
8946 cx,
8947 )
8948 });
8949
8950 let invisible_symbol_font_size = font_size / 2.;
8951 let tab_invisible = window.text_system().shape_line(
8952 "→".into(),
8953 invisible_symbol_font_size,
8954 &[TextRun {
8955 len: "→".len(),
8956 font: self.style.text.font(),
8957 color: cx.theme().colors().editor_invisible,
8958 background_color: None,
8959 underline: None,
8960 strikethrough: None,
8961 }],
8962 None,
8963 );
8964 let space_invisible = window.text_system().shape_line(
8965 "•".into(),
8966 invisible_symbol_font_size,
8967 &[TextRun {
8968 len: "•".len(),
8969 font: self.style.text.font(),
8970 color: cx.theme().colors().editor_invisible,
8971 background_color: None,
8972 underline: None,
8973 strikethrough: None,
8974 }],
8975 None,
8976 );
8977
8978 let mode = snapshot.mode.clone();
8979
8980 let (diff_hunk_controls, diff_hunk_control_bounds) = if is_read_only {
8981 (vec![], vec![])
8982 } else {
8983 self.layout_diff_hunk_controls(
8984 start_row..end_row,
8985 &row_infos,
8986 &text_hitbox,
8987 newest_selection_head,
8988 line_height,
8989 right_margin,
8990 scroll_pixel_position,
8991 &display_hunks,
8992 &highlighted_rows,
8993 self.editor.clone(),
8994 window,
8995 cx,
8996 )
8997 };
8998
8999 let position_map = Rc::new(PositionMap {
9000 size: bounds.size,
9001 visible_row_range,
9002 scroll_pixel_position,
9003 scroll_max,
9004 line_layouts,
9005 line_height,
9006 em_width,
9007 em_advance,
9008 snapshot,
9009 gutter_hitbox: gutter_hitbox.clone(),
9010 text_hitbox: text_hitbox.clone(),
9011 inline_blame_bounds: inline_blame_layout
9012 .as_ref()
9013 .map(|layout| (layout.bounds, layout.entry.clone())),
9014 display_hunks: display_hunks.clone(),
9015 diff_hunk_control_bounds: diff_hunk_control_bounds.clone(),
9016 });
9017
9018 self.editor.update(cx, |editor, _| {
9019 editor.last_position_map = Some(position_map.clone())
9020 });
9021
9022 EditorLayout {
9023 mode,
9024 position_map,
9025 visible_display_row_range: start_row..end_row,
9026 wrap_guides,
9027 indent_guides,
9028 hitbox,
9029 gutter_hitbox,
9030 display_hunks,
9031 content_origin,
9032 scrollbars_layout,
9033 minimap,
9034 active_rows,
9035 highlighted_rows,
9036 highlighted_ranges,
9037 highlighted_gutter_ranges,
9038 redacted_ranges,
9039 document_colors,
9040 line_elements,
9041 line_numbers,
9042 blamed_display_rows,
9043 inline_diagnostics,
9044 inline_blame_layout,
9045 inline_code_actions,
9046 blocks,
9047 cursors,
9048 visible_cursors,
9049 selections,
9050 edit_prediction_popover,
9051 diff_hunk_controls,
9052 mouse_context_menu,
9053 test_indicators,
9054 breakpoints,
9055 crease_toggles,
9056 crease_trailers,
9057 tab_invisible,
9058 space_invisible,
9059 sticky_buffer_header,
9060 expand_toggles,
9061 }
9062 })
9063 })
9064 })
9065 }
9066
9067 fn paint(
9068 &mut self,
9069 _: Option<&GlobalElementId>,
9070 _inspector_id: Option<&gpui::InspectorElementId>,
9071 bounds: Bounds<gpui::Pixels>,
9072 _: &mut Self::RequestLayoutState,
9073 layout: &mut Self::PrepaintState,
9074 window: &mut Window,
9075 cx: &mut App,
9076 ) {
9077 if !layout.mode.is_minimap() {
9078 let focus_handle = self.editor.focus_handle(cx);
9079 let key_context = self
9080 .editor
9081 .update(cx, |editor, cx| editor.key_context(window, cx));
9082
9083 window.set_key_context(key_context);
9084 window.handle_input(
9085 &focus_handle,
9086 ElementInputHandler::new(bounds, self.editor.clone()),
9087 cx,
9088 );
9089 self.register_actions(window, cx);
9090 self.register_key_listeners(window, cx, layout);
9091 }
9092
9093 let text_style = TextStyleRefinement {
9094 font_size: Some(self.style.text.font_size),
9095 line_height: Some(self.style.text.line_height),
9096 ..Default::default()
9097 };
9098 let rem_size = self.rem_size(cx);
9099 window.with_rem_size(rem_size, |window| {
9100 window.with_text_style(Some(text_style), |window| {
9101 window.with_content_mask(Some(ContentMask { bounds }), |window| {
9102 self.paint_mouse_listeners(layout, window, cx);
9103 self.paint_background(layout, window, cx);
9104 self.paint_indent_guides(layout, window, cx);
9105
9106 if layout.gutter_hitbox.size.width > Pixels::ZERO {
9107 self.paint_blamed_display_rows(layout, window, cx);
9108 self.paint_line_numbers(layout, window, cx);
9109 }
9110
9111 self.paint_text(layout, window, cx);
9112
9113 if layout.gutter_hitbox.size.width > Pixels::ZERO {
9114 self.paint_gutter_highlights(layout, window, cx);
9115 self.paint_gutter_indicators(layout, window, cx);
9116 }
9117
9118 if !layout.blocks.is_empty() {
9119 window.with_element_namespace("blocks", |window| {
9120 self.paint_blocks(layout, window, cx);
9121 });
9122 }
9123
9124 window.with_element_namespace("blocks", |window| {
9125 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
9126 sticky_header.paint(window, cx)
9127 }
9128 });
9129
9130 self.paint_minimap(layout, window, cx);
9131 self.paint_scrollbars(layout, window, cx);
9132 self.paint_edit_prediction_popover(layout, window, cx);
9133 self.paint_mouse_context_menu(layout, window, cx);
9134 });
9135 })
9136 })
9137 }
9138}
9139
9140pub(super) fn gutter_bounds(
9141 editor_bounds: Bounds<Pixels>,
9142 gutter_dimensions: GutterDimensions,
9143) -> Bounds<Pixels> {
9144 Bounds {
9145 origin: editor_bounds.origin,
9146 size: size(gutter_dimensions.width, editor_bounds.size.height),
9147 }
9148}
9149
9150#[derive(Clone, Copy)]
9151struct ContextMenuLayout {
9152 y_flipped: bool,
9153 bounds: Bounds<Pixels>,
9154}
9155
9156/// Holds information required for layouting the editor scrollbars.
9157struct ScrollbarLayoutInformation {
9158 /// The bounds of the editor area (excluding the content offset).
9159 editor_bounds: Bounds<Pixels>,
9160 /// The available range to scroll within the document.
9161 scroll_range: Size<Pixels>,
9162 /// The space available for one glyph in the editor.
9163 glyph_grid_cell: Size<Pixels>,
9164}
9165
9166impl ScrollbarLayoutInformation {
9167 pub fn new(
9168 editor_bounds: Bounds<Pixels>,
9169 glyph_grid_cell: Size<Pixels>,
9170 document_size: Size<Pixels>,
9171 longest_line_blame_width: Pixels,
9172 settings: &EditorSettings,
9173 ) -> Self {
9174 let vertical_overscroll = match settings.scroll_beyond_last_line {
9175 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
9176 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
9177 ScrollBeyondLastLine::VerticalScrollMargin => {
9178 (1.0 + settings.vertical_scroll_margin) * glyph_grid_cell.height
9179 }
9180 };
9181
9182 let overscroll = size(longest_line_blame_width, vertical_overscroll);
9183
9184 ScrollbarLayoutInformation {
9185 editor_bounds,
9186 scroll_range: document_size + overscroll,
9187 glyph_grid_cell,
9188 }
9189 }
9190}
9191
9192impl IntoElement for EditorElement {
9193 type Element = Self;
9194
9195 fn into_element(self) -> Self::Element {
9196 self
9197 }
9198}
9199
9200pub struct EditorLayout {
9201 position_map: Rc<PositionMap>,
9202 hitbox: Hitbox,
9203 gutter_hitbox: Hitbox,
9204 content_origin: gpui::Point<Pixels>,
9205 scrollbars_layout: Option<EditorScrollbars>,
9206 minimap: Option<MinimapLayout>,
9207 mode: EditorMode,
9208 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
9209 indent_guides: Option<Vec<IndentGuideLayout>>,
9210 visible_display_row_range: Range<DisplayRow>,
9211 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
9212 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
9213 line_elements: SmallVec<[AnyElement; 1]>,
9214 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
9215 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
9216 blamed_display_rows: Option<Vec<AnyElement>>,
9217 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
9218 inline_blame_layout: Option<InlineBlameLayout>,
9219 inline_code_actions: Option<AnyElement>,
9220 blocks: Vec<BlockLayout>,
9221 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
9222 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
9223 redacted_ranges: Vec<Range<DisplayPoint>>,
9224 cursors: Vec<(DisplayPoint, Hsla)>,
9225 visible_cursors: Vec<CursorLayout>,
9226 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
9227 test_indicators: Vec<AnyElement>,
9228 breakpoints: Vec<AnyElement>,
9229 crease_toggles: Vec<Option<AnyElement>>,
9230 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
9231 diff_hunk_controls: Vec<AnyElement>,
9232 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
9233 edit_prediction_popover: Option<AnyElement>,
9234 mouse_context_menu: Option<AnyElement>,
9235 tab_invisible: ShapedLine,
9236 space_invisible: ShapedLine,
9237 sticky_buffer_header: Option<AnyElement>,
9238 document_colors: Option<(DocumentColorsRenderMode, Vec<(Range<DisplayPoint>, Hsla)>)>,
9239}
9240
9241impl EditorLayout {
9242 fn line_end_overshoot(&self) -> Pixels {
9243 0.15 * self.position_map.line_height
9244 }
9245}
9246
9247struct LineNumberLayout {
9248 shaped_line: ShapedLine,
9249 hitbox: Option<Hitbox>,
9250}
9251
9252struct ColoredRange<T> {
9253 start: T,
9254 end: T,
9255 color: Hsla,
9256}
9257
9258impl Along for ScrollbarAxes {
9259 type Unit = bool;
9260
9261 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
9262 match axis {
9263 ScrollbarAxis::Horizontal => self.horizontal,
9264 ScrollbarAxis::Vertical => self.vertical,
9265 }
9266 }
9267
9268 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
9269 match axis {
9270 ScrollbarAxis::Horizontal => ScrollbarAxes {
9271 horizontal: f(self.horizontal),
9272 vertical: self.vertical,
9273 },
9274 ScrollbarAxis::Vertical => ScrollbarAxes {
9275 horizontal: self.horizontal,
9276 vertical: f(self.vertical),
9277 },
9278 }
9279 }
9280}
9281
9282#[derive(Clone)]
9283struct EditorScrollbars {
9284 pub vertical: Option<ScrollbarLayout>,
9285 pub horizontal: Option<ScrollbarLayout>,
9286 pub visible: bool,
9287}
9288
9289impl EditorScrollbars {
9290 pub fn from_scrollbar_axes(
9291 show_scrollbar: ScrollbarAxes,
9292 layout_information: &ScrollbarLayoutInformation,
9293 content_offset: gpui::Point<Pixels>,
9294 scroll_position: gpui::Point<f32>,
9295 scrollbar_width: Pixels,
9296 right_margin: Pixels,
9297 editor_width: Pixels,
9298 show_scrollbars: bool,
9299 scrollbar_state: Option<&ActiveScrollbarState>,
9300 window: &mut Window,
9301 ) -> Self {
9302 let ScrollbarLayoutInformation {
9303 editor_bounds,
9304 scroll_range,
9305 glyph_grid_cell,
9306 } = layout_information;
9307
9308 let viewport_size = size(editor_width, editor_bounds.size.height);
9309
9310 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
9311 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
9312 Corner::BottomLeft,
9313 editor_bounds.bottom_left(),
9314 size(
9315 // The horizontal viewport size differs from the space available for the
9316 // horizontal scrollbar, so we have to manually stich it together here.
9317 editor_bounds.size.width - right_margin,
9318 scrollbar_width,
9319 ),
9320 ),
9321 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
9322 Corner::TopRight,
9323 editor_bounds.top_right(),
9324 size(scrollbar_width, viewport_size.height),
9325 ),
9326 };
9327
9328 let mut create_scrollbar_layout = |axis| {
9329 let viewport_size = viewport_size.along(axis);
9330 let scroll_range = scroll_range.along(axis);
9331
9332 // We always want a vertical scrollbar track for scrollbar diagnostic visibility.
9333 (show_scrollbar.along(axis)
9334 && (axis == ScrollbarAxis::Vertical || scroll_range > viewport_size))
9335 .then(|| {
9336 ScrollbarLayout::new(
9337 window.insert_hitbox(scrollbar_bounds_for(axis), HitboxBehavior::Normal),
9338 viewport_size,
9339 scroll_range,
9340 glyph_grid_cell.along(axis),
9341 content_offset.along(axis),
9342 scroll_position.along(axis),
9343 show_scrollbars,
9344 axis,
9345 )
9346 .with_thumb_state(
9347 scrollbar_state.and_then(|state| state.thumb_state_for_axis(axis)),
9348 )
9349 })
9350 };
9351
9352 Self {
9353 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
9354 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
9355 visible: show_scrollbars,
9356 }
9357 }
9358
9359 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
9360 [
9361 (&self.vertical, ScrollbarAxis::Vertical),
9362 (&self.horizontal, ScrollbarAxis::Horizontal),
9363 ]
9364 .into_iter()
9365 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
9366 }
9367
9368 /// Returns the currently hovered scrollbar axis, if any.
9369 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
9370 self.iter_scrollbars()
9371 .find(|s| s.0.hitbox.is_hovered(window))
9372 }
9373}
9374
9375#[derive(Clone)]
9376struct ScrollbarLayout {
9377 hitbox: Hitbox,
9378 visible_range: Range<f32>,
9379 text_unit_size: Pixels,
9380 thumb_bounds: Option<Bounds<Pixels>>,
9381 thumb_state: ScrollbarThumbState,
9382}
9383
9384impl ScrollbarLayout {
9385 const BORDER_WIDTH: Pixels = px(1.0);
9386 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
9387 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
9388 const MIN_THUMB_SIZE: Pixels = px(25.0);
9389
9390 fn new(
9391 scrollbar_track_hitbox: Hitbox,
9392 viewport_size: Pixels,
9393 scroll_range: Pixels,
9394 glyph_space: Pixels,
9395 content_offset: Pixels,
9396 scroll_position: f32,
9397 show_thumb: bool,
9398 axis: ScrollbarAxis,
9399 ) -> Self {
9400 let track_bounds = scrollbar_track_hitbox.bounds;
9401 // The length of the track available to the scrollbar thumb. We deliberately
9402 // exclude the content size here so that the thumb aligns with the content.
9403 let track_length = track_bounds.size.along(axis) - content_offset;
9404
9405 Self::new_with_hitbox_and_track_length(
9406 scrollbar_track_hitbox,
9407 track_length,
9408 viewport_size,
9409 scroll_range,
9410 glyph_space,
9411 content_offset,
9412 scroll_position,
9413 show_thumb,
9414 axis,
9415 )
9416 }
9417
9418 fn for_minimap(
9419 minimap_track_hitbox: Hitbox,
9420 visible_lines: f32,
9421 total_editor_lines: f32,
9422 minimap_line_height: Pixels,
9423 scroll_position: f32,
9424 minimap_scroll_top: f32,
9425 show_thumb: bool,
9426 ) -> Self {
9427 // The scrollbar thumb size is calculated as
9428 // (visible_content/total_content) × scrollbar_track_length.
9429 //
9430 // For the minimap's thumb layout, we leverage this by setting the
9431 // scrollbar track length to the entire document size (using minimap line
9432 // height). This creates a thumb that exactly represents the editor
9433 // viewport scaled to minimap proportions.
9434 //
9435 // We adjust the thumb position relative to `minimap_scroll_top` to
9436 // accommodate for the deliberately oversized track.
9437 //
9438 // This approach ensures that the minimap thumb accurately reflects the
9439 // editor's current scroll position whilst nicely synchronizing the minimap
9440 // thumb and scrollbar thumb.
9441 let scroll_range = total_editor_lines * minimap_line_height;
9442 let viewport_size = visible_lines * minimap_line_height;
9443
9444 let track_top_offset = -minimap_scroll_top * minimap_line_height;
9445
9446 Self::new_with_hitbox_and_track_length(
9447 minimap_track_hitbox,
9448 scroll_range,
9449 viewport_size,
9450 scroll_range,
9451 minimap_line_height,
9452 track_top_offset,
9453 scroll_position,
9454 show_thumb,
9455 ScrollbarAxis::Vertical,
9456 )
9457 }
9458
9459 fn new_with_hitbox_and_track_length(
9460 scrollbar_track_hitbox: Hitbox,
9461 track_length: Pixels,
9462 viewport_size: Pixels,
9463 scroll_range: Pixels,
9464 glyph_space: Pixels,
9465 content_offset: Pixels,
9466 scroll_position: f32,
9467 show_thumb: bool,
9468 axis: ScrollbarAxis,
9469 ) -> Self {
9470 let text_units_per_page = viewport_size / glyph_space;
9471 let visible_range = scroll_position..scroll_position + text_units_per_page;
9472 let total_text_units = scroll_range / glyph_space;
9473
9474 let thumb_percentage = text_units_per_page / total_text_units;
9475 let thumb_size = (track_length * thumb_percentage)
9476 .max(ScrollbarLayout::MIN_THUMB_SIZE)
9477 .min(track_length);
9478
9479 let text_unit_divisor = (total_text_units - text_units_per_page).max(0.);
9480
9481 let content_larger_than_viewport = text_unit_divisor > 0.;
9482
9483 let text_unit_size = if content_larger_than_viewport {
9484 (track_length - thumb_size) / text_unit_divisor
9485 } else {
9486 glyph_space
9487 };
9488
9489 let thumb_bounds = (show_thumb && content_larger_than_viewport).then(|| {
9490 Self::thumb_bounds(
9491 &scrollbar_track_hitbox,
9492 content_offset,
9493 visible_range.start,
9494 text_unit_size,
9495 thumb_size,
9496 axis,
9497 )
9498 });
9499
9500 ScrollbarLayout {
9501 hitbox: scrollbar_track_hitbox,
9502 visible_range,
9503 text_unit_size,
9504 thumb_bounds,
9505 thumb_state: Default::default(),
9506 }
9507 }
9508
9509 fn with_thumb_state(self, thumb_state: Option<ScrollbarThumbState>) -> Self {
9510 if let Some(thumb_state) = thumb_state {
9511 Self {
9512 thumb_state,
9513 ..self
9514 }
9515 } else {
9516 self
9517 }
9518 }
9519
9520 fn thumb_bounds(
9521 scrollbar_track: &Hitbox,
9522 content_offset: Pixels,
9523 visible_range_start: f32,
9524 text_unit_size: Pixels,
9525 thumb_size: Pixels,
9526 axis: ScrollbarAxis,
9527 ) -> Bounds<Pixels> {
9528 let thumb_origin = scrollbar_track.origin.apply_along(axis, |origin| {
9529 origin + content_offset + visible_range_start * text_unit_size
9530 });
9531 Bounds::new(
9532 thumb_origin,
9533 scrollbar_track.size.apply_along(axis, |_| thumb_size),
9534 )
9535 }
9536
9537 fn thumb_hovered(&self, position: &gpui::Point<Pixels>) -> bool {
9538 self.thumb_bounds
9539 .is_some_and(|bounds| bounds.contains(position))
9540 }
9541
9542 fn marker_quads_for_ranges(
9543 &self,
9544 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
9545 column: Option<usize>,
9546 ) -> Vec<PaintQuad> {
9547 struct MinMax {
9548 min: Pixels,
9549 max: Pixels,
9550 }
9551 let (x_range, height_limit) = if let Some(column) = column {
9552 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
9553 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
9554 let end = start + column_width;
9555 (
9556 Range { start, end },
9557 MinMax {
9558 min: Self::MIN_MARKER_HEIGHT,
9559 max: px(f32::MAX),
9560 },
9561 )
9562 } else {
9563 (
9564 Range {
9565 start: Self::BORDER_WIDTH,
9566 end: self.hitbox.size.width,
9567 },
9568 MinMax {
9569 min: Self::LINE_MARKER_HEIGHT,
9570 max: Self::LINE_MARKER_HEIGHT,
9571 },
9572 )
9573 };
9574
9575 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
9576 let mut pixel_ranges = row_ranges
9577 .into_iter()
9578 .map(|range| {
9579 let start_y = row_to_y(range.start);
9580 let end_y = row_to_y(range.end)
9581 + self
9582 .text_unit_size
9583 .max(height_limit.min)
9584 .min(height_limit.max);
9585 ColoredRange {
9586 start: start_y,
9587 end: end_y,
9588 color: range.color,
9589 }
9590 })
9591 .peekable();
9592
9593 let mut quads = Vec::new();
9594 while let Some(mut pixel_range) = pixel_ranges.next() {
9595 while let Some(next_pixel_range) = pixel_ranges.peek() {
9596 if pixel_range.end >= next_pixel_range.start - px(1.0)
9597 && pixel_range.color == next_pixel_range.color
9598 {
9599 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
9600 pixel_ranges.next();
9601 } else {
9602 break;
9603 }
9604 }
9605
9606 let bounds = Bounds::from_corners(
9607 point(x_range.start, pixel_range.start),
9608 point(x_range.end, pixel_range.end),
9609 );
9610 quads.push(quad(
9611 bounds,
9612 Corners::default(),
9613 pixel_range.color,
9614 Edges::default(),
9615 Hsla::transparent_black(),
9616 BorderStyle::default(),
9617 ));
9618 }
9619
9620 quads
9621 }
9622}
9623
9624struct MinimapLayout {
9625 pub minimap: AnyElement,
9626 pub thumb_layout: ScrollbarLayout,
9627 pub minimap_scroll_top: f32,
9628 pub minimap_line_height: Pixels,
9629 pub thumb_border_style: MinimapThumbBorder,
9630 pub max_scroll_top: f32,
9631}
9632
9633impl MinimapLayout {
9634 /// The minimum width of the minimap in columns. If the minimap is smaller than this, it will be hidden.
9635 const MINIMAP_MIN_WIDTH_COLUMNS: f32 = 20.;
9636 /// The minimap width as a percentage of the editor width.
9637 const MINIMAP_WIDTH_PCT: f32 = 0.15;
9638 /// Calculates the scroll top offset the minimap editor has to have based on the
9639 /// current scroll progress.
9640 fn calculate_minimap_top_offset(
9641 document_lines: f32,
9642 visible_editor_lines: f32,
9643 visible_minimap_lines: f32,
9644 scroll_position: f32,
9645 ) -> f32 {
9646 let non_visible_document_lines = (document_lines - visible_editor_lines).max(0.);
9647 if non_visible_document_lines == 0. {
9648 0.
9649 } else {
9650 let scroll_percentage = (scroll_position / non_visible_document_lines).clamp(0., 1.);
9651 scroll_percentage * (document_lines - visible_minimap_lines).max(0.)
9652 }
9653 }
9654}
9655
9656struct CreaseTrailerLayout {
9657 element: AnyElement,
9658 bounds: Bounds<Pixels>,
9659}
9660
9661pub(crate) struct PositionMap {
9662 pub size: Size<Pixels>,
9663 pub line_height: Pixels,
9664 pub scroll_pixel_position: gpui::Point<Pixels>,
9665 pub scroll_max: gpui::Point<f32>,
9666 pub em_width: Pixels,
9667 pub em_advance: Pixels,
9668 pub visible_row_range: Range<DisplayRow>,
9669 pub line_layouts: Vec<LineWithInvisibles>,
9670 pub snapshot: EditorSnapshot,
9671 pub text_hitbox: Hitbox,
9672 pub gutter_hitbox: Hitbox,
9673 pub inline_blame_bounds: Option<(Bounds<Pixels>, BlameEntry)>,
9674 pub display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
9675 pub diff_hunk_control_bounds: Vec<(DisplayRow, Bounds<Pixels>)>,
9676}
9677
9678#[derive(Debug, Copy, Clone)]
9679pub struct PointForPosition {
9680 pub previous_valid: DisplayPoint,
9681 pub next_valid: DisplayPoint,
9682 pub exact_unclipped: DisplayPoint,
9683 pub column_overshoot_after_line_end: u32,
9684}
9685
9686impl PointForPosition {
9687 pub fn as_valid(&self) -> Option<DisplayPoint> {
9688 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
9689 Some(self.previous_valid)
9690 } else {
9691 None
9692 }
9693 }
9694
9695 pub fn intersects_selection(&self, selection: &Selection<DisplayPoint>) -> bool {
9696 let Some(valid_point) = self.as_valid() else {
9697 return false;
9698 };
9699 let range = selection.range();
9700
9701 let candidate_row = valid_point.row();
9702 let candidate_col = valid_point.column();
9703
9704 let start_row = range.start.row();
9705 let start_col = range.start.column();
9706 let end_row = range.end.row();
9707 let end_col = range.end.column();
9708
9709 if candidate_row < start_row || candidate_row > end_row {
9710 false
9711 } else if start_row == end_row {
9712 candidate_col >= start_col && candidate_col < end_col
9713 } else {
9714 if candidate_row == start_row {
9715 candidate_col >= start_col
9716 } else if candidate_row == end_row {
9717 candidate_col < end_col
9718 } else {
9719 true
9720 }
9721 }
9722 }
9723}
9724
9725impl PositionMap {
9726 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
9727 let text_bounds = self.text_hitbox.bounds;
9728 let scroll_position = self.snapshot.scroll_position();
9729 let position = position - text_bounds.origin;
9730 let y = position.y.max(px(0.)).min(self.size.height);
9731 let x = position.x + (scroll_position.x * self.em_advance);
9732 let row = ((y / self.line_height) + scroll_position.y) as u32;
9733
9734 let (column, x_overshoot_after_line_end) = if let Some(line) = self
9735 .line_layouts
9736 .get(row as usize - scroll_position.y as usize)
9737 {
9738 if let Some(ix) = line.index_for_x(x) {
9739 (ix as u32, px(0.))
9740 } else {
9741 (line.len as u32, px(0.).max(x - line.width))
9742 }
9743 } else {
9744 (0, x)
9745 };
9746
9747 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
9748 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
9749 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
9750
9751 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
9752 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
9753 PointForPosition {
9754 previous_valid,
9755 next_valid,
9756 exact_unclipped,
9757 column_overshoot_after_line_end,
9758 }
9759 }
9760}
9761
9762struct BlockLayout {
9763 id: BlockId,
9764 x_offset: Pixels,
9765 row: Option<DisplayRow>,
9766 element: AnyElement,
9767 available_space: Size<AvailableSpace>,
9768 style: BlockStyle,
9769 overlaps_gutter: bool,
9770 is_buffer_header: bool,
9771}
9772
9773pub fn layout_line(
9774 row: DisplayRow,
9775 snapshot: &EditorSnapshot,
9776 style: &EditorStyle,
9777 text_width: Pixels,
9778 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
9779 window: &mut Window,
9780 cx: &mut App,
9781) -> LineWithInvisibles {
9782 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
9783 LineWithInvisibles::from_chunks(
9784 chunks,
9785 &style,
9786 MAX_LINE_LEN,
9787 1,
9788 &snapshot.mode,
9789 text_width,
9790 is_row_soft_wrapped,
9791 window,
9792 cx,
9793 )
9794 .pop()
9795 .unwrap()
9796}
9797
9798#[derive(Debug)]
9799pub struct IndentGuideLayout {
9800 origin: gpui::Point<Pixels>,
9801 length: Pixels,
9802 single_indent_width: Pixels,
9803 depth: u32,
9804 active: bool,
9805 settings: IndentGuideSettings,
9806}
9807
9808pub struct CursorLayout {
9809 origin: gpui::Point<Pixels>,
9810 block_width: Pixels,
9811 line_height: Pixels,
9812 color: Hsla,
9813 shape: CursorShape,
9814 block_text: Option<ShapedLine>,
9815 cursor_name: Option<AnyElement>,
9816}
9817
9818#[derive(Debug)]
9819pub struct CursorName {
9820 string: SharedString,
9821 color: Hsla,
9822 is_top_row: bool,
9823}
9824
9825impl CursorLayout {
9826 pub fn new(
9827 origin: gpui::Point<Pixels>,
9828 block_width: Pixels,
9829 line_height: Pixels,
9830 color: Hsla,
9831 shape: CursorShape,
9832 block_text: Option<ShapedLine>,
9833 ) -> CursorLayout {
9834 CursorLayout {
9835 origin,
9836 block_width,
9837 line_height,
9838 color,
9839 shape,
9840 block_text,
9841 cursor_name: None,
9842 }
9843 }
9844
9845 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
9846 Bounds {
9847 origin: self.origin + origin,
9848 size: size(self.block_width, self.line_height),
9849 }
9850 }
9851
9852 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
9853 match self.shape {
9854 CursorShape::Bar => Bounds {
9855 origin: self.origin + origin,
9856 size: size(px(2.0), self.line_height),
9857 },
9858 CursorShape::Block | CursorShape::Hollow => Bounds {
9859 origin: self.origin + origin,
9860 size: size(self.block_width, self.line_height),
9861 },
9862 CursorShape::Underline => Bounds {
9863 origin: self.origin
9864 + origin
9865 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
9866 size: size(self.block_width, px(2.0)),
9867 },
9868 }
9869 }
9870
9871 pub fn layout(
9872 &mut self,
9873 origin: gpui::Point<Pixels>,
9874 cursor_name: Option<CursorName>,
9875 window: &mut Window,
9876 cx: &mut App,
9877 ) {
9878 if let Some(cursor_name) = cursor_name {
9879 let bounds = self.bounds(origin);
9880 let text_size = self.line_height / 1.5;
9881
9882 let name_origin = if cursor_name.is_top_row {
9883 point(bounds.right() - px(1.), bounds.top())
9884 } else {
9885 match self.shape {
9886 CursorShape::Bar => point(
9887 bounds.right() - px(2.),
9888 bounds.top() - text_size / 2. - px(1.),
9889 ),
9890 _ => point(
9891 bounds.right() - px(1.),
9892 bounds.top() - text_size / 2. - px(1.),
9893 ),
9894 }
9895 };
9896 let mut name_element = div()
9897 .bg(self.color)
9898 .text_size(text_size)
9899 .px_0p5()
9900 .line_height(text_size + px(2.))
9901 .text_color(cursor_name.color)
9902 .child(cursor_name.string.clone())
9903 .into_any_element();
9904
9905 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
9906
9907 self.cursor_name = Some(name_element);
9908 }
9909 }
9910
9911 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
9912 let bounds = self.bounds(origin);
9913
9914 //Draw background or border quad
9915 let cursor = if matches!(self.shape, CursorShape::Hollow) {
9916 outline(bounds, self.color, BorderStyle::Solid)
9917 } else {
9918 fill(bounds, self.color)
9919 };
9920
9921 if let Some(name) = &mut self.cursor_name {
9922 name.paint(window, cx);
9923 }
9924
9925 window.paint_quad(cursor);
9926
9927 if let Some(block_text) = &self.block_text {
9928 block_text
9929 .paint(self.origin + origin, self.line_height, window, cx)
9930 .log_err();
9931 }
9932 }
9933
9934 pub fn shape(&self) -> CursorShape {
9935 self.shape
9936 }
9937}
9938
9939#[derive(Debug)]
9940pub struct HighlightedRange {
9941 pub start_y: Pixels,
9942 pub line_height: Pixels,
9943 pub lines: Vec<HighlightedRangeLine>,
9944 pub color: Hsla,
9945 pub corner_radius: Pixels,
9946}
9947
9948#[derive(Debug)]
9949pub struct HighlightedRangeLine {
9950 pub start_x: Pixels,
9951 pub end_x: Pixels,
9952}
9953
9954impl HighlightedRange {
9955 pub fn paint(&self, fill: bool, bounds: Bounds<Pixels>, window: &mut Window) {
9956 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
9957 self.paint_lines(self.start_y, &self.lines[0..1], fill, bounds, window);
9958 self.paint_lines(
9959 self.start_y + self.line_height,
9960 &self.lines[1..],
9961 fill,
9962 bounds,
9963 window,
9964 );
9965 } else {
9966 self.paint_lines(self.start_y, &self.lines, fill, bounds, window);
9967 }
9968 }
9969
9970 fn paint_lines(
9971 &self,
9972 start_y: Pixels,
9973 lines: &[HighlightedRangeLine],
9974 fill: bool,
9975 _bounds: Bounds<Pixels>,
9976 window: &mut Window,
9977 ) {
9978 if lines.is_empty() {
9979 return;
9980 }
9981
9982 let first_line = lines.first().unwrap();
9983 let last_line = lines.last().unwrap();
9984
9985 let first_top_left = point(first_line.start_x, start_y);
9986 let first_top_right = point(first_line.end_x, start_y);
9987
9988 let curve_height = point(Pixels::ZERO, self.corner_radius);
9989 let curve_width = |start_x: Pixels, end_x: Pixels| {
9990 let max = (end_x - start_x) / 2.;
9991 let width = if max < self.corner_radius {
9992 max
9993 } else {
9994 self.corner_radius
9995 };
9996
9997 point(width, Pixels::ZERO)
9998 };
9999
10000 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
10001 let mut builder = if fill {
10002 gpui::PathBuilder::fill()
10003 } else {
10004 gpui::PathBuilder::stroke(px(1.))
10005 };
10006 builder.move_to(first_top_right - top_curve_width);
10007 builder.curve_to(first_top_right + curve_height, first_top_right);
10008
10009 let mut iter = lines.iter().enumerate().peekable();
10010 while let Some((ix, line)) = iter.next() {
10011 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
10012
10013 if let Some((_, next_line)) = iter.peek() {
10014 let next_top_right = point(next_line.end_x, bottom_right.y);
10015
10016 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
10017 Ordering::Equal => {
10018 builder.line_to(bottom_right);
10019 }
10020 Ordering::Less => {
10021 let curve_width = curve_width(next_top_right.x, bottom_right.x);
10022 builder.line_to(bottom_right - curve_height);
10023 if self.corner_radius > Pixels::ZERO {
10024 builder.curve_to(bottom_right - curve_width, bottom_right);
10025 }
10026 builder.line_to(next_top_right + curve_width);
10027 if self.corner_radius > Pixels::ZERO {
10028 builder.curve_to(next_top_right + curve_height, next_top_right);
10029 }
10030 }
10031 Ordering::Greater => {
10032 let curve_width = curve_width(bottom_right.x, next_top_right.x);
10033 builder.line_to(bottom_right - curve_height);
10034 if self.corner_radius > Pixels::ZERO {
10035 builder.curve_to(bottom_right + curve_width, bottom_right);
10036 }
10037 builder.line_to(next_top_right - curve_width);
10038 if self.corner_radius > Pixels::ZERO {
10039 builder.curve_to(next_top_right + curve_height, next_top_right);
10040 }
10041 }
10042 }
10043 } else {
10044 let curve_width = curve_width(line.start_x, line.end_x);
10045 builder.line_to(bottom_right - curve_height);
10046 if self.corner_radius > Pixels::ZERO {
10047 builder.curve_to(bottom_right - curve_width, bottom_right);
10048 }
10049
10050 let bottom_left = point(line.start_x, bottom_right.y);
10051 builder.line_to(bottom_left + curve_width);
10052 if self.corner_radius > Pixels::ZERO {
10053 builder.curve_to(bottom_left - curve_height, bottom_left);
10054 }
10055 }
10056 }
10057
10058 if first_line.start_x > last_line.start_x {
10059 let curve_width = curve_width(last_line.start_x, first_line.start_x);
10060 let second_top_left = point(last_line.start_x, start_y + self.line_height);
10061 builder.line_to(second_top_left + curve_height);
10062 if self.corner_radius > Pixels::ZERO {
10063 builder.curve_to(second_top_left + curve_width, second_top_left);
10064 }
10065 let first_bottom_left = point(first_line.start_x, second_top_left.y);
10066 builder.line_to(first_bottom_left - curve_width);
10067 if self.corner_radius > Pixels::ZERO {
10068 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
10069 }
10070 }
10071
10072 builder.line_to(first_top_left + curve_height);
10073 if self.corner_radius > Pixels::ZERO {
10074 builder.curve_to(first_top_left + top_curve_width, first_top_left);
10075 }
10076 builder.line_to(first_top_right - top_curve_width);
10077
10078 if let Ok(path) = builder.build() {
10079 window.paint_path(path, self.color);
10080 }
10081 }
10082}
10083
10084enum CursorPopoverType {
10085 CodeContextMenu,
10086 EditPrediction,
10087}
10088
10089pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
10090 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
10091}
10092
10093fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
10094 (delta.pow(1.2) / 300.0).into()
10095}
10096
10097pub fn register_action<T: Action>(
10098 editor: &Entity<Editor>,
10099 window: &mut Window,
10100 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
10101) {
10102 let editor = editor.clone();
10103 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
10104 let action = action.downcast_ref().unwrap();
10105 if phase == DispatchPhase::Bubble {
10106 editor.update(cx, |editor, cx| {
10107 listener(editor, action, window, cx);
10108 })
10109 }
10110 })
10111}
10112
10113fn compute_auto_height_layout(
10114 editor: &mut Editor,
10115 min_lines: usize,
10116 max_lines: Option<usize>,
10117 max_line_number_width: Pixels,
10118 known_dimensions: Size<Option<Pixels>>,
10119 available_width: AvailableSpace,
10120 window: &mut Window,
10121 cx: &mut Context<Editor>,
10122) -> Option<Size<Pixels>> {
10123 let width = known_dimensions.width.or({
10124 if let AvailableSpace::Definite(available_width) = available_width {
10125 Some(available_width)
10126 } else {
10127 None
10128 }
10129 })?;
10130 if let Some(height) = known_dimensions.height {
10131 return Some(size(width, height));
10132 }
10133
10134 let style = editor.style.as_ref().unwrap();
10135 let font_id = window.text_system().resolve_font(&style.text.font());
10136 let font_size = style.text.font_size.to_pixels(window.rem_size());
10137 let line_height = style.text.line_height_in_pixels(window.rem_size());
10138 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
10139
10140 let mut snapshot = editor.snapshot(window, cx);
10141 let gutter_dimensions = snapshot
10142 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
10143 .or_else(|| {
10144 editor
10145 .offset_content
10146 .then(|| GutterDimensions::default_with_margin(font_id, font_size, cx))
10147 })
10148 .unwrap_or_default();
10149
10150 editor.gutter_dimensions = gutter_dimensions;
10151 let text_width = width - gutter_dimensions.width;
10152 let overscroll = size(em_width, px(0.));
10153
10154 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
10155 if !matches!(editor.soft_wrap_mode(cx), SoftWrap::None) {
10156 if editor.set_wrap_width(Some(editor_width), cx) {
10157 snapshot = editor.snapshot(window, cx);
10158 }
10159 }
10160
10161 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
10162
10163 let min_height = line_height * min_lines as f32;
10164 let content_height = scroll_height.max(min_height);
10165
10166 let final_height = if let Some(max_lines) = max_lines {
10167 let max_height = line_height * max_lines as f32;
10168 content_height.min(max_height)
10169 } else {
10170 content_height
10171 };
10172
10173 Some(size(width, final_height))
10174}
10175
10176#[cfg(test)]
10177mod tests {
10178 use super::*;
10179 use crate::{
10180 Editor, MultiBuffer, SelectionEffects,
10181 display_map::{BlockPlacement, BlockProperties},
10182 editor_tests::{init_test, update_test_language_settings},
10183 };
10184 use gpui::{TestAppContext, VisualTestContext};
10185 use language::language_settings;
10186 use log::info;
10187 use std::num::NonZeroU32;
10188 use util::test::sample_text;
10189
10190 #[gpui::test]
10191 async fn test_soft_wrap_editor_width_auto_height_editor(cx: &mut TestAppContext) {
10192 init_test(cx, |_| {});
10193
10194 let window = cx.add_window(|window, cx| {
10195 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
10196 let mut editor = Editor::new(
10197 EditorMode::AutoHeight {
10198 min_lines: 1,
10199 max_lines: None,
10200 },
10201 buffer,
10202 None,
10203 window,
10204 cx,
10205 );
10206 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
10207 editor
10208 });
10209 let cx = &mut VisualTestContext::from_window(*window, cx);
10210 let editor = window.root(cx).unwrap();
10211 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10212
10213 for x in 1..=100 {
10214 let (_, state) = cx.draw(
10215 Default::default(),
10216 size(px(200. + 0.13 * x as f32), px(500.)),
10217 |_, _| EditorElement::new(&editor, style.clone()),
10218 );
10219
10220 assert!(
10221 state.position_map.scroll_max.x == 0.,
10222 "Soft wrapped editor should have no horizontal scrolling!"
10223 );
10224 }
10225 }
10226
10227 #[gpui::test]
10228 async fn test_soft_wrap_editor_width_full_editor(cx: &mut TestAppContext) {
10229 init_test(cx, |_| {});
10230
10231 let window = cx.add_window(|window, cx| {
10232 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
10233 let mut editor = Editor::new(EditorMode::full(), buffer, None, window, cx);
10234 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
10235 editor
10236 });
10237 let cx = &mut VisualTestContext::from_window(*window, cx);
10238 let editor = window.root(cx).unwrap();
10239 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10240
10241 for x in 1..=100 {
10242 let (_, state) = cx.draw(
10243 Default::default(),
10244 size(px(200. + 0.13 * x as f32), px(500.)),
10245 |_, _| EditorElement::new(&editor, style.clone()),
10246 );
10247
10248 assert!(
10249 state.position_map.scroll_max.x == 0.,
10250 "Soft wrapped editor should have no horizontal scrolling!"
10251 );
10252 }
10253 }
10254
10255 #[gpui::test]
10256 fn test_shape_line_numbers(cx: &mut TestAppContext) {
10257 init_test(cx, |_| {});
10258 let window = cx.add_window(|window, cx| {
10259 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
10260 Editor::new(EditorMode::full(), buffer, None, window, cx)
10261 });
10262
10263 let editor = window.root(cx).unwrap();
10264 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
10265 let line_height = window
10266 .update(cx, |_, window, _| {
10267 style.text.line_height_in_pixels(window.rem_size())
10268 })
10269 .unwrap();
10270 let element = EditorElement::new(&editor, style);
10271 let snapshot = window
10272 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
10273 .unwrap();
10274
10275 let layouts = cx
10276 .update_window(*window, |_, window, cx| {
10277 element.layout_line_numbers(
10278 None,
10279 GutterDimensions {
10280 left_padding: Pixels::ZERO,
10281 right_padding: Pixels::ZERO,
10282 width: px(30.0),
10283 margin: Pixels::ZERO,
10284 git_blame_entries_width: None,
10285 },
10286 line_height,
10287 gpui::Point::default(),
10288 DisplayRow(0)..DisplayRow(6),
10289 &(0..6)
10290 .map(|row| RowInfo {
10291 buffer_row: Some(row),
10292 ..Default::default()
10293 })
10294 .collect::<Vec<_>>(),
10295 &BTreeMap::default(),
10296 Some(DisplayPoint::new(DisplayRow(0), 0)),
10297 &snapshot,
10298 window,
10299 cx,
10300 )
10301 })
10302 .unwrap();
10303 assert_eq!(layouts.len(), 6);
10304
10305 let relative_rows = window
10306 .update(cx, |editor, window, cx| {
10307 let snapshot = editor.snapshot(window, cx);
10308 element.calculate_relative_line_numbers(
10309 &snapshot,
10310 &(DisplayRow(0)..DisplayRow(6)),
10311 Some(DisplayRow(3)),
10312 )
10313 })
10314 .unwrap();
10315 assert_eq!(relative_rows[&DisplayRow(0)], 3);
10316 assert_eq!(relative_rows[&DisplayRow(1)], 2);
10317 assert_eq!(relative_rows[&DisplayRow(2)], 1);
10318 // current line has no relative number
10319 assert_eq!(relative_rows[&DisplayRow(4)], 1);
10320 assert_eq!(relative_rows[&DisplayRow(5)], 2);
10321
10322 // works if cursor is before screen
10323 let relative_rows = window
10324 .update(cx, |editor, window, cx| {
10325 let snapshot = editor.snapshot(window, cx);
10326 element.calculate_relative_line_numbers(
10327 &snapshot,
10328 &(DisplayRow(3)..DisplayRow(6)),
10329 Some(DisplayRow(1)),
10330 )
10331 })
10332 .unwrap();
10333 assert_eq!(relative_rows.len(), 3);
10334 assert_eq!(relative_rows[&DisplayRow(3)], 2);
10335 assert_eq!(relative_rows[&DisplayRow(4)], 3);
10336 assert_eq!(relative_rows[&DisplayRow(5)], 4);
10337
10338 // works if cursor is after screen
10339 let relative_rows = window
10340 .update(cx, |editor, window, cx| {
10341 let snapshot = editor.snapshot(window, cx);
10342 element.calculate_relative_line_numbers(
10343 &snapshot,
10344 &(DisplayRow(0)..DisplayRow(3)),
10345 Some(DisplayRow(6)),
10346 )
10347 })
10348 .unwrap();
10349 assert_eq!(relative_rows.len(), 3);
10350 assert_eq!(relative_rows[&DisplayRow(0)], 5);
10351 assert_eq!(relative_rows[&DisplayRow(1)], 4);
10352 assert_eq!(relative_rows[&DisplayRow(2)], 3);
10353 }
10354
10355 #[gpui::test]
10356 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
10357 init_test(cx, |_| {});
10358
10359 let window = cx.add_window(|window, cx| {
10360 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
10361 Editor::new(EditorMode::full(), buffer, None, window, cx)
10362 });
10363 let cx = &mut VisualTestContext::from_window(*window, cx);
10364 let editor = window.root(cx).unwrap();
10365 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10366
10367 window
10368 .update(cx, |editor, window, cx| {
10369 editor.cursor_shape = CursorShape::Block;
10370 editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
10371 s.select_ranges([
10372 Point::new(0, 0)..Point::new(1, 0),
10373 Point::new(3, 2)..Point::new(3, 3),
10374 Point::new(5, 6)..Point::new(6, 0),
10375 ]);
10376 });
10377 })
10378 .unwrap();
10379
10380 let (_, state) = cx.draw(
10381 point(px(500.), px(500.)),
10382 size(px(500.), px(500.)),
10383 |_, _| EditorElement::new(&editor, style),
10384 );
10385
10386 assert_eq!(state.selections.len(), 1);
10387 let local_selections = &state.selections[0].1;
10388 assert_eq!(local_selections.len(), 3);
10389 // moves cursor back one line
10390 assert_eq!(
10391 local_selections[0].head,
10392 DisplayPoint::new(DisplayRow(0), 6)
10393 );
10394 assert_eq!(
10395 local_selections[0].range,
10396 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
10397 );
10398
10399 // moves cursor back one column
10400 assert_eq!(
10401 local_selections[1].range,
10402 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
10403 );
10404 assert_eq!(
10405 local_selections[1].head,
10406 DisplayPoint::new(DisplayRow(3), 2)
10407 );
10408
10409 // leaves cursor on the max point
10410 assert_eq!(
10411 local_selections[2].range,
10412 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
10413 );
10414 assert_eq!(
10415 local_selections[2].head,
10416 DisplayPoint::new(DisplayRow(6), 0)
10417 );
10418
10419 // active lines does not include 1 (even though the range of the selection does)
10420 assert_eq!(
10421 state.active_rows.keys().cloned().collect::<Vec<_>>(),
10422 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
10423 );
10424 }
10425
10426 #[gpui::test]
10427 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
10428 init_test(cx, |_| {});
10429
10430 let window = cx.add_window(|window, cx| {
10431 let buffer = MultiBuffer::build_simple("", cx);
10432 Editor::new(EditorMode::full(), buffer, None, window, cx)
10433 });
10434 let cx = &mut VisualTestContext::from_window(*window, cx);
10435 let editor = window.root(cx).unwrap();
10436 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10437 window
10438 .update(cx, |editor, window, cx| {
10439 editor.set_placeholder_text("hello", cx);
10440 editor.insert_blocks(
10441 [BlockProperties {
10442 style: BlockStyle::Fixed,
10443 placement: BlockPlacement::Above(Anchor::min()),
10444 height: Some(3),
10445 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
10446 priority: 0,
10447 }],
10448 None,
10449 cx,
10450 );
10451
10452 // Blur the editor so that it displays placeholder text.
10453 window.blur();
10454 })
10455 .unwrap();
10456
10457 let (_, state) = cx.draw(
10458 point(px(500.), px(500.)),
10459 size(px(500.), px(500.)),
10460 |_, _| EditorElement::new(&editor, style),
10461 );
10462 assert_eq!(state.position_map.line_layouts.len(), 4);
10463 assert_eq!(state.line_numbers.len(), 1);
10464 assert_eq!(
10465 state
10466 .line_numbers
10467 .get(&MultiBufferRow(0))
10468 .map(|line_number| line_number.shaped_line.text.as_ref()),
10469 Some("1")
10470 );
10471 }
10472
10473 #[gpui::test]
10474 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
10475 const TAB_SIZE: u32 = 4;
10476
10477 let input_text = "\t \t|\t| a b";
10478 let expected_invisibles = vec![
10479 Invisible::Tab {
10480 line_start_offset: 0,
10481 line_end_offset: TAB_SIZE as usize,
10482 },
10483 Invisible::Whitespace {
10484 line_offset: TAB_SIZE as usize,
10485 },
10486 Invisible::Tab {
10487 line_start_offset: TAB_SIZE as usize + 1,
10488 line_end_offset: TAB_SIZE as usize * 2,
10489 },
10490 Invisible::Tab {
10491 line_start_offset: TAB_SIZE as usize * 2 + 1,
10492 line_end_offset: TAB_SIZE as usize * 3,
10493 },
10494 Invisible::Whitespace {
10495 line_offset: TAB_SIZE as usize * 3 + 1,
10496 },
10497 Invisible::Whitespace {
10498 line_offset: TAB_SIZE as usize * 3 + 3,
10499 },
10500 ];
10501 assert_eq!(
10502 expected_invisibles.len(),
10503 input_text
10504 .chars()
10505 .filter(|initial_char| initial_char.is_whitespace())
10506 .count(),
10507 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
10508 );
10509
10510 for show_line_numbers in [true, false] {
10511 init_test(cx, |s| {
10512 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10513 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
10514 });
10515
10516 let actual_invisibles = collect_invisibles_from_new_editor(
10517 cx,
10518 EditorMode::full(),
10519 input_text,
10520 px(500.0),
10521 show_line_numbers,
10522 );
10523
10524 assert_eq!(expected_invisibles, actual_invisibles);
10525 }
10526 }
10527
10528 #[gpui::test]
10529 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
10530 init_test(cx, |s| {
10531 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10532 s.defaults.tab_size = NonZeroU32::new(4);
10533 });
10534
10535 for editor_mode_without_invisibles in [
10536 EditorMode::SingleLine,
10537 EditorMode::AutoHeight {
10538 min_lines: 1,
10539 max_lines: Some(100),
10540 },
10541 ] {
10542 for show_line_numbers in [true, false] {
10543 let invisibles = collect_invisibles_from_new_editor(
10544 cx,
10545 editor_mode_without_invisibles.clone(),
10546 "\t\t\t| | a b",
10547 px(500.0),
10548 show_line_numbers,
10549 );
10550 assert!(
10551 invisibles.is_empty(),
10552 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
10553 );
10554 }
10555 }
10556 }
10557
10558 #[gpui::test]
10559 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
10560 let tab_size = 4;
10561 let input_text = "a\tbcd ".repeat(9);
10562 let repeated_invisibles = [
10563 Invisible::Tab {
10564 line_start_offset: 1,
10565 line_end_offset: tab_size as usize,
10566 },
10567 Invisible::Whitespace {
10568 line_offset: tab_size as usize + 3,
10569 },
10570 Invisible::Whitespace {
10571 line_offset: tab_size as usize + 4,
10572 },
10573 Invisible::Whitespace {
10574 line_offset: tab_size as usize + 5,
10575 },
10576 Invisible::Whitespace {
10577 line_offset: tab_size as usize + 6,
10578 },
10579 Invisible::Whitespace {
10580 line_offset: tab_size as usize + 7,
10581 },
10582 ];
10583 let expected_invisibles = std::iter::once(repeated_invisibles)
10584 .cycle()
10585 .take(9)
10586 .flatten()
10587 .collect::<Vec<_>>();
10588 assert_eq!(
10589 expected_invisibles.len(),
10590 input_text
10591 .chars()
10592 .filter(|initial_char| initial_char.is_whitespace())
10593 .count(),
10594 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
10595 );
10596 info!("Expected invisibles: {expected_invisibles:?}");
10597
10598 init_test(cx, |_| {});
10599
10600 // Put the same string with repeating whitespace pattern into editors of various size,
10601 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
10602 let resize_step = 10.0;
10603 let mut editor_width = 200.0;
10604 while editor_width <= 1000.0 {
10605 for show_line_numbers in [true, false] {
10606 update_test_language_settings(cx, |s| {
10607 s.defaults.tab_size = NonZeroU32::new(tab_size);
10608 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10609 s.defaults.preferred_line_length = Some(editor_width as u32);
10610 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
10611 });
10612
10613 let actual_invisibles = collect_invisibles_from_new_editor(
10614 cx,
10615 EditorMode::full(),
10616 &input_text,
10617 px(editor_width),
10618 show_line_numbers,
10619 );
10620
10621 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
10622 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
10623 let mut i = 0;
10624 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
10625 i = actual_index;
10626 match expected_invisibles.get(i) {
10627 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
10628 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
10629 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
10630 _ => {
10631 panic!(
10632 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
10633 )
10634 }
10635 },
10636 None => {
10637 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
10638 }
10639 }
10640 }
10641 let missing_expected_invisibles = &expected_invisibles[i + 1..];
10642 assert!(
10643 missing_expected_invisibles.is_empty(),
10644 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
10645 );
10646
10647 editor_width += resize_step;
10648 }
10649 }
10650 }
10651
10652 fn collect_invisibles_from_new_editor(
10653 cx: &mut TestAppContext,
10654 editor_mode: EditorMode,
10655 input_text: &str,
10656 editor_width: Pixels,
10657 show_line_numbers: bool,
10658 ) -> Vec<Invisible> {
10659 info!(
10660 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
10661 editor_width.0
10662 );
10663 let window = cx.add_window(|window, cx| {
10664 let buffer = MultiBuffer::build_simple(input_text, cx);
10665 Editor::new(editor_mode, buffer, None, window, cx)
10666 });
10667 let cx = &mut VisualTestContext::from_window(*window, cx);
10668 let editor = window.root(cx).unwrap();
10669
10670 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10671 window
10672 .update(cx, |editor, _, cx| {
10673 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
10674 editor.set_wrap_width(Some(editor_width), cx);
10675 editor.set_show_line_numbers(show_line_numbers, cx);
10676 })
10677 .unwrap();
10678 let (_, state) = cx.draw(
10679 point(px(500.), px(500.)),
10680 size(px(500.), px(500.)),
10681 |_, _| EditorElement::new(&editor, style),
10682 );
10683 state
10684 .position_map
10685 .line_layouts
10686 .iter()
10687 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
10688 .cloned()
10689 .collect()
10690 }
10691}