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