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,
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 KeybindingKeystroke, Length, ModifiersChangedEvent, MouseButton, MouseClickEvent,
47 MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad, ParentElement, Pixels, ScrollDelta,
48 ScrollHandle, ScrollWheelEvent, ShapedLine, SharedString, Size, StatefulInteractiveElement,
49 Style, Styled, TextRun, TextStyleRefinement, WeakEntity, Window, anchored, deferred, div, fill,
50 linear_color_stop, linear_gradient, outline, point, px, quad, relative, size, solid_background,
51 transparent_black,
52};
53use itertools::Itertools;
54use language::{IndentGuideSettings, language_settings::ShowWhitespaceSetting};
55use markdown::Markdown;
56use multi_buffer::{
57 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, ExpandInfo, MultiBufferPoint,
58 MultiBufferRow, RowInfo,
59};
60
61use project::{
62 Entry, ProjectPath,
63 debugger::breakpoint_store::{Breakpoint, BreakpointSessionState},
64 project_settings::ProjectSettings,
65};
66use settings::{
67 GitGutterSetting, GitHunkStyleSetting, IndentGuideBackgroundColoring, IndentGuideColoring,
68 Settings,
69};
70use smallvec::{SmallVec, smallvec};
71use std::{
72 any::TypeId,
73 borrow::Cow,
74 cmp::{self, Ordering},
75 fmt::{self, Write},
76 iter, mem,
77 ops::{Deref, Range},
78 path::{self, Path},
79 rc::Rc,
80 sync::Arc,
81 time::{Duration, Instant},
82};
83use sum_tree::Bias;
84use text::{BufferId, SelectionGoal};
85use theme::{ActiveTheme, Appearance, BufferLineHeight, PlayerColor};
86use ui::utils::ensure_minimum_contrast;
87use ui::{
88 ButtonLike, ContextMenu, Indicator, KeyBinding, POPOVER_Y_PADDING, Tooltip, h_flex, prelude::*,
89 right_click_menu, scrollbars::ShowScrollbar,
90};
91use unicode_segmentation::UnicodeSegmentation;
92use util::post_inc;
93use util::{RangeExt, ResultExt, debug_panic};
94use workspace::{
95 CollaboratorId, ItemSettings, OpenInTerminal, OpenTerminal, RevealInProjectPanel, Workspace,
96 item::Item, notifications::NotifyTaskExt,
97};
98
99/// Determines what kinds of highlights should be applied to a lines background.
100#[derive(Clone, Copy, Default)]
101struct LineHighlightSpec {
102 selection: bool,
103 breakpoint: bool,
104 _active_stack_frame: bool,
105}
106
107#[derive(Debug)]
108struct SelectionLayout {
109 head: DisplayPoint,
110 cursor_shape: CursorShape,
111 is_newest: bool,
112 is_local: bool,
113 range: Range<DisplayPoint>,
114 active_rows: Range<DisplayRow>,
115 user_name: Option<SharedString>,
116}
117
118struct InlineBlameLayout {
119 element: AnyElement,
120 bounds: Bounds<Pixels>,
121 buffer_id: BufferId,
122 entry: BlameEntry,
123}
124
125impl SelectionLayout {
126 fn new<T: ToPoint + ToDisplayPoint + Clone>(
127 selection: Selection<T>,
128 line_mode: bool,
129 cursor_shape: CursorShape,
130 map: &DisplaySnapshot,
131 is_newest: bool,
132 is_local: bool,
133 user_name: Option<SharedString>,
134 ) -> Self {
135 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
136 let display_selection = point_selection.map(|p| p.to_display_point(map));
137 let mut range = display_selection.range();
138 let mut head = display_selection.head();
139 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
140 ..map.next_line_boundary(point_selection.end).1.row();
141
142 // vim visual line mode
143 if line_mode {
144 let point_range = map.expand_to_line(point_selection.range());
145 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
146 }
147
148 // any vim visual mode (including line mode)
149 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
150 && !range.is_empty()
151 && !selection.reversed
152 {
153 if head.column() > 0 {
154 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
155 } else if head.row().0 > 0 && head != map.max_point() {
156 head = map.clip_point(
157 DisplayPoint::new(
158 head.row().previous_row(),
159 map.line_len(head.row().previous_row()),
160 ),
161 Bias::Left,
162 );
163 // updating range.end is a no-op unless you're cursor is
164 // on the newline containing a multi-buffer divider
165 // in which case the clip_point may have moved the head up
166 // an additional row.
167 range.end = DisplayPoint::new(head.row().next_row(), 0);
168 active_rows.end = head.row();
169 }
170 }
171
172 Self {
173 head,
174 cursor_shape,
175 is_newest,
176 is_local,
177 range,
178 active_rows,
179 user_name,
180 }
181 }
182}
183
184pub struct EditorElement {
185 editor: Entity<Editor>,
186 style: EditorStyle,
187}
188
189type DisplayRowDelta = u32;
190
191impl EditorElement {
192 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
193
194 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
195 Self {
196 editor: editor.clone(),
197 style,
198 }
199 }
200
201 fn register_actions(&self, window: &mut Window, cx: &mut App) {
202 let editor = &self.editor;
203 editor.update(cx, |editor, cx| {
204 for action in editor.editor_actions.borrow().values() {
205 (action)(editor, window, cx)
206 }
207 });
208
209 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
210 crate::clangd_ext::apply_related_actions(editor, window, cx);
211
212 register_action(editor, window, Editor::open_context_menu);
213 register_action(editor, window, Editor::move_left);
214 register_action(editor, window, Editor::move_right);
215 register_action(editor, window, Editor::move_down);
216 register_action(editor, window, Editor::move_down_by_lines);
217 register_action(editor, window, Editor::select_down_by_lines);
218 register_action(editor, window, Editor::move_up);
219 register_action(editor, window, Editor::move_up_by_lines);
220 register_action(editor, window, Editor::select_up_by_lines);
221 register_action(editor, window, Editor::select_page_down);
222 register_action(editor, window, Editor::select_page_up);
223 register_action(editor, window, Editor::cancel);
224 register_action(editor, window, Editor::newline);
225 register_action(editor, window, Editor::newline_above);
226 register_action(editor, window, Editor::newline_below);
227 register_action(editor, window, Editor::backspace);
228 register_action(editor, window, Editor::blame_hover);
229 register_action(editor, window, Editor::delete);
230 register_action(editor, window, Editor::tab);
231 register_action(editor, window, Editor::backtab);
232 register_action(editor, window, Editor::indent);
233 register_action(editor, window, Editor::outdent);
234 register_action(editor, window, Editor::autoindent);
235 register_action(editor, window, Editor::delete_line);
236 register_action(editor, window, Editor::join_lines);
237 register_action(editor, window, Editor::sort_lines_by_length);
238 register_action(editor, window, Editor::sort_lines_case_sensitive);
239 register_action(editor, window, Editor::sort_lines_case_insensitive);
240 register_action(editor, window, Editor::reverse_lines);
241 register_action(editor, window, Editor::shuffle_lines);
242 register_action(editor, window, Editor::convert_indentation_to_spaces);
243 register_action(editor, window, Editor::convert_indentation_to_tabs);
244 register_action(editor, window, Editor::convert_to_upper_case);
245 register_action(editor, window, Editor::convert_to_lower_case);
246 register_action(editor, window, Editor::convert_to_title_case);
247 register_action(editor, window, Editor::convert_to_snake_case);
248 register_action(editor, window, Editor::convert_to_kebab_case);
249 register_action(editor, window, Editor::convert_to_upper_camel_case);
250 register_action(editor, window, Editor::convert_to_lower_camel_case);
251 register_action(editor, window, Editor::convert_to_opposite_case);
252 register_action(editor, window, Editor::convert_to_sentence_case);
253 register_action(editor, window, Editor::toggle_case);
254 register_action(editor, window, Editor::convert_to_rot13);
255 register_action(editor, window, Editor::convert_to_rot47);
256 register_action(editor, window, Editor::delete_to_previous_word_start);
257 register_action(editor, window, Editor::delete_to_previous_subword_start);
258 register_action(editor, window, Editor::delete_to_next_word_end);
259 register_action(editor, window, Editor::delete_to_next_subword_end);
260 register_action(editor, window, Editor::delete_to_beginning_of_line);
261 register_action(editor, window, Editor::delete_to_end_of_line);
262 register_action(editor, window, Editor::cut_to_end_of_line);
263 register_action(editor, window, Editor::duplicate_line_up);
264 register_action(editor, window, Editor::duplicate_line_down);
265 register_action(editor, window, Editor::duplicate_selection);
266 register_action(editor, window, Editor::move_line_up);
267 register_action(editor, window, Editor::move_line_down);
268 register_action(editor, window, Editor::transpose);
269 register_action(editor, window, Editor::rewrap);
270 register_action(editor, window, Editor::cut);
271 register_action(editor, window, Editor::kill_ring_cut);
272 register_action(editor, window, Editor::kill_ring_yank);
273 register_action(editor, window, Editor::copy);
274 register_action(editor, window, Editor::copy_and_trim);
275 register_action(editor, window, Editor::diff_clipboard_with_selection);
276 register_action(editor, window, Editor::paste);
277 register_action(editor, window, Editor::undo);
278 register_action(editor, window, Editor::redo);
279 register_action(editor, window, Editor::move_page_up);
280 register_action(editor, window, Editor::move_page_down);
281 register_action(editor, window, Editor::next_screen);
282 register_action(editor, window, Editor::scroll_cursor_top);
283 register_action(editor, window, Editor::scroll_cursor_center);
284 register_action(editor, window, Editor::scroll_cursor_bottom);
285 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
286 register_action(editor, window, |editor, _: &LineDown, window, cx| {
287 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
288 });
289 register_action(editor, window, |editor, _: &LineUp, window, cx| {
290 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
291 });
292 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
293 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
294 });
295 register_action(
296 editor,
297 window,
298 |editor, HandleInput(text): &HandleInput, window, cx| {
299 if text.is_empty() {
300 return;
301 }
302 editor.handle_input(text, window, cx);
303 },
304 );
305 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
306 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
307 });
308 register_action(editor, window, |editor, _: &PageDown, window, cx| {
309 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
310 });
311 register_action(editor, window, |editor, _: &PageUp, window, cx| {
312 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
313 });
314 register_action(editor, window, Editor::move_to_previous_word_start);
315 register_action(editor, window, Editor::move_to_previous_subword_start);
316 register_action(editor, window, Editor::move_to_next_word_end);
317 register_action(editor, window, Editor::move_to_next_subword_end);
318 register_action(editor, window, Editor::move_to_beginning_of_line);
319 register_action(editor, window, Editor::move_to_end_of_line);
320 register_action(editor, window, Editor::move_to_start_of_paragraph);
321 register_action(editor, window, Editor::move_to_end_of_paragraph);
322 register_action(editor, window, Editor::move_to_beginning);
323 register_action(editor, window, Editor::move_to_end);
324 register_action(editor, window, Editor::move_to_start_of_excerpt);
325 register_action(editor, window, Editor::move_to_start_of_next_excerpt);
326 register_action(editor, window, Editor::move_to_end_of_excerpt);
327 register_action(editor, window, Editor::move_to_end_of_previous_excerpt);
328 register_action(editor, window, Editor::select_up);
329 register_action(editor, window, Editor::select_down);
330 register_action(editor, window, Editor::select_left);
331 register_action(editor, window, Editor::select_right);
332 register_action(editor, window, Editor::select_to_previous_word_start);
333 register_action(editor, window, Editor::select_to_previous_subword_start);
334 register_action(editor, window, Editor::select_to_next_word_end);
335 register_action(editor, window, Editor::select_to_next_subword_end);
336 register_action(editor, window, Editor::select_to_beginning_of_line);
337 register_action(editor, window, Editor::select_to_end_of_line);
338 register_action(editor, window, Editor::select_to_start_of_paragraph);
339 register_action(editor, window, Editor::select_to_end_of_paragraph);
340 register_action(editor, window, Editor::select_to_start_of_excerpt);
341 register_action(editor, window, Editor::select_to_start_of_next_excerpt);
342 register_action(editor, window, Editor::select_to_end_of_excerpt);
343 register_action(editor, window, Editor::select_to_end_of_previous_excerpt);
344 register_action(editor, window, Editor::select_to_beginning);
345 register_action(editor, window, Editor::select_to_end);
346 register_action(editor, window, Editor::select_all);
347 register_action(editor, window, |editor, action, window, cx| {
348 editor.select_all_matches(action, window, cx).log_err();
349 });
350 register_action(editor, window, Editor::select_line);
351 register_action(editor, window, Editor::split_selection_into_lines);
352 register_action(editor, window, Editor::add_selection_above);
353 register_action(editor, window, Editor::add_selection_below);
354 register_action(editor, window, |editor, action, window, cx| {
355 editor.select_next(action, window, cx).log_err();
356 });
357 register_action(editor, window, |editor, action, window, cx| {
358 editor.select_previous(action, window, cx).log_err();
359 });
360 register_action(editor, window, |editor, action, window, cx| {
361 editor.find_next_match(action, window, cx).log_err();
362 });
363 register_action(editor, window, |editor, action, window, cx| {
364 editor.find_previous_match(action, window, cx).log_err();
365 });
366 register_action(editor, window, Editor::toggle_comments);
367 register_action(editor, window, Editor::select_larger_syntax_node);
368 register_action(editor, window, Editor::select_smaller_syntax_node);
369 register_action(editor, window, Editor::select_next_syntax_node);
370 register_action(editor, window, Editor::select_prev_syntax_node);
371 register_action(editor, window, Editor::unwrap_syntax_node);
372 register_action(editor, window, Editor::select_enclosing_symbol);
373 register_action(editor, window, Editor::move_to_enclosing_bracket);
374 register_action(editor, window, Editor::undo_selection);
375 register_action(editor, window, Editor::redo_selection);
376 if !editor.read(cx).is_singleton(cx) {
377 register_action(editor, window, Editor::expand_excerpts);
378 register_action(editor, window, Editor::expand_excerpts_up);
379 register_action(editor, window, Editor::expand_excerpts_down);
380 }
381 register_action(editor, window, Editor::go_to_diagnostic);
382 register_action(editor, window, Editor::go_to_prev_diagnostic);
383 register_action(editor, window, Editor::go_to_next_hunk);
384 register_action(editor, window, Editor::go_to_prev_hunk);
385 register_action(editor, window, Editor::go_to_next_document_highlight);
386 register_action(editor, window, Editor::go_to_prev_document_highlight);
387 register_action(editor, window, |editor, action, window, cx| {
388 editor
389 .go_to_definition(action, window, cx)
390 .detach_and_log_err(cx);
391 });
392 register_action(editor, window, |editor, action, window, cx| {
393 editor
394 .go_to_definition_split(action, window, cx)
395 .detach_and_log_err(cx);
396 });
397 register_action(editor, window, |editor, action, window, cx| {
398 editor
399 .go_to_declaration(action, window, cx)
400 .detach_and_log_err(cx);
401 });
402 register_action(editor, window, |editor, action, window, cx| {
403 editor
404 .go_to_declaration_split(action, window, cx)
405 .detach_and_log_err(cx);
406 });
407 register_action(editor, window, |editor, action, window, cx| {
408 editor
409 .go_to_implementation(action, window, cx)
410 .detach_and_log_err(cx);
411 });
412 register_action(editor, window, |editor, action, window, cx| {
413 editor
414 .go_to_implementation_split(action, window, cx)
415 .detach_and_log_err(cx);
416 });
417 register_action(editor, window, |editor, action, window, cx| {
418 editor
419 .go_to_type_definition(action, window, cx)
420 .detach_and_log_err(cx);
421 });
422 register_action(editor, window, |editor, action, window, cx| {
423 editor
424 .go_to_type_definition_split(action, window, cx)
425 .detach_and_log_err(cx);
426 });
427 register_action(editor, window, Editor::open_url);
428 register_action(editor, window, Editor::open_selected_filename);
429 register_action(editor, window, Editor::fold);
430 register_action(editor, window, Editor::fold_at_level);
431 register_action(editor, window, Editor::fold_all);
432 register_action(editor, window, Editor::fold_function_bodies);
433 register_action(editor, window, Editor::fold_recursive);
434 register_action(editor, window, Editor::toggle_fold);
435 register_action(editor, window, Editor::toggle_fold_recursive);
436 register_action(editor, window, Editor::toggle_fold_all);
437 register_action(editor, window, Editor::unfold_lines);
438 register_action(editor, window, Editor::unfold_recursive);
439 register_action(editor, window, Editor::unfold_all);
440 register_action(editor, window, Editor::fold_selected_ranges);
441 register_action(editor, window, Editor::set_mark);
442 register_action(editor, window, Editor::swap_selection_ends);
443 register_action(editor, window, Editor::show_completions);
444 register_action(editor, window, Editor::show_word_completions);
445 register_action(editor, window, Editor::toggle_code_actions);
446 register_action(editor, window, Editor::open_excerpts);
447 register_action(editor, window, Editor::open_excerpts_in_split);
448 register_action(editor, window, Editor::open_proposed_changes_editor);
449 register_action(editor, window, Editor::toggle_soft_wrap);
450 register_action(editor, window, Editor::toggle_tab_bar);
451 register_action(editor, window, Editor::toggle_line_numbers);
452 register_action(editor, window, Editor::toggle_relative_line_numbers);
453 register_action(editor, window, Editor::toggle_indent_guides);
454 register_action(editor, window, Editor::toggle_inlay_hints);
455 register_action(editor, window, Editor::toggle_edit_predictions);
456 if editor.read(cx).diagnostics_enabled() {
457 register_action(editor, window, Editor::toggle_diagnostics);
458 }
459 if editor.read(cx).inline_diagnostics_enabled() {
460 register_action(editor, window, Editor::toggle_inline_diagnostics);
461 }
462 if editor.read(cx).supports_minimap(cx) {
463 register_action(editor, window, Editor::toggle_minimap);
464 }
465 register_action(editor, window, hover_popover::hover);
466 register_action(editor, window, Editor::reveal_in_finder);
467 register_action(editor, window, Editor::copy_path);
468 register_action(editor, window, Editor::copy_relative_path);
469 register_action(editor, window, Editor::copy_file_name);
470 register_action(editor, window, Editor::copy_file_name_without_extension);
471 register_action(editor, window, Editor::copy_highlight_json);
472 register_action(editor, window, Editor::copy_permalink_to_line);
473 register_action(editor, window, Editor::open_permalink_to_line);
474 register_action(editor, window, Editor::copy_file_location);
475 register_action(editor, window, Editor::toggle_git_blame);
476 register_action(editor, window, Editor::toggle_git_blame_inline);
477 register_action(editor, window, Editor::open_git_blame_commit);
478 register_action(editor, window, Editor::toggle_selected_diff_hunks);
479 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
480 register_action(editor, window, Editor::stage_and_next);
481 register_action(editor, window, Editor::unstage_and_next);
482 register_action(editor, window, Editor::expand_all_diff_hunks);
483 register_action(editor, window, Editor::go_to_previous_change);
484 register_action(editor, window, Editor::go_to_next_change);
485
486 register_action(editor, window, |editor, action, window, cx| {
487 if let Some(task) = editor.format(action, window, cx) {
488 task.detach_and_notify_err(window, cx);
489 } else {
490 cx.propagate();
491 }
492 });
493 register_action(editor, window, |editor, action, window, cx| {
494 if let Some(task) = editor.format_selections(action, window, cx) {
495 task.detach_and_notify_err(window, cx);
496 } else {
497 cx.propagate();
498 }
499 });
500 register_action(editor, window, |editor, action, window, cx| {
501 if let Some(task) = editor.organize_imports(action, window, cx) {
502 task.detach_and_notify_err(window, cx);
503 } else {
504 cx.propagate();
505 }
506 });
507 register_action(editor, window, Editor::restart_language_server);
508 register_action(editor, window, Editor::stop_language_server);
509 register_action(editor, window, Editor::show_character_palette);
510 register_action(editor, window, |editor, action, window, cx| {
511 if let Some(task) = editor.confirm_completion(action, window, cx) {
512 task.detach_and_notify_err(window, cx);
513 } else {
514 cx.propagate();
515 }
516 });
517 register_action(editor, window, |editor, action, window, cx| {
518 if let Some(task) = editor.confirm_completion_replace(action, window, cx) {
519 task.detach_and_notify_err(window, cx);
520 } else {
521 cx.propagate();
522 }
523 });
524 register_action(editor, window, |editor, action, window, cx| {
525 if let Some(task) = editor.confirm_completion_insert(action, window, cx) {
526 task.detach_and_notify_err(window, cx);
527 } else {
528 cx.propagate();
529 }
530 });
531 register_action(editor, window, |editor, action, window, cx| {
532 if let Some(task) = editor.compose_completion(action, window, cx) {
533 task.detach_and_notify_err(window, cx);
534 } else {
535 cx.propagate();
536 }
537 });
538 register_action(editor, window, |editor, action, window, cx| {
539 if let Some(task) = editor.confirm_code_action(action, window, cx) {
540 task.detach_and_notify_err(window, cx);
541 } else {
542 cx.propagate();
543 }
544 });
545 register_action(editor, window, |editor, action, window, cx| {
546 if let Some(task) = editor.rename(action, window, cx) {
547 task.detach_and_notify_err(window, cx);
548 } else {
549 cx.propagate();
550 }
551 });
552 register_action(editor, window, |editor, action, window, cx| {
553 if let Some(task) = editor.confirm_rename(action, window, cx) {
554 task.detach_and_notify_err(window, cx);
555 } else {
556 cx.propagate();
557 }
558 });
559 register_action(editor, window, |editor, action, window, cx| {
560 if let Some(task) = editor.find_all_references(action, window, cx) {
561 task.detach_and_log_err(cx);
562 } else {
563 cx.propagate();
564 }
565 });
566 register_action(editor, window, Editor::show_signature_help);
567 register_action(editor, window, Editor::signature_help_prev);
568 register_action(editor, window, Editor::signature_help_next);
569 register_action(editor, window, Editor::next_edit_prediction);
570 register_action(editor, window, Editor::previous_edit_prediction);
571 register_action(editor, window, Editor::show_edit_prediction);
572 register_action(editor, window, Editor::context_menu_first);
573 register_action(editor, window, Editor::context_menu_prev);
574 register_action(editor, window, Editor::context_menu_next);
575 register_action(editor, window, Editor::context_menu_last);
576 register_action(editor, window, Editor::display_cursor_names);
577 register_action(editor, window, Editor::unique_lines_case_insensitive);
578 register_action(editor, window, Editor::unique_lines_case_sensitive);
579 register_action(editor, window, Editor::accept_partial_edit_prediction);
580 register_action(editor, window, Editor::accept_edit_prediction);
581 register_action(editor, window, Editor::restore_file);
582 register_action(editor, window, Editor::git_restore);
583 register_action(editor, window, Editor::apply_all_diff_hunks);
584 register_action(editor, window, Editor::apply_selected_diff_hunks);
585 register_action(editor, window, Editor::open_active_item_in_terminal);
586 register_action(editor, window, Editor::reload_file);
587 register_action(editor, window, Editor::spawn_nearest_task);
588 register_action(editor, window, Editor::insert_uuid_v4);
589 register_action(editor, window, Editor::insert_uuid_v7);
590 register_action(editor, window, Editor::open_selections_in_multibuffer);
591 register_action(editor, window, Editor::toggle_breakpoint);
592 register_action(editor, window, Editor::edit_log_breakpoint);
593 register_action(editor, window, Editor::enable_breakpoint);
594 register_action(editor, window, Editor::disable_breakpoint);
595 if editor.read(cx).enable_wrap_selections_in_tag(cx) {
596 register_action(editor, window, Editor::wrap_selections_in_tag);
597 }
598 }
599
600 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
601 let position_map = layout.position_map.clone();
602 window.on_key_event({
603 let editor = self.editor.clone();
604 move |event: &ModifiersChangedEvent, phase, window, cx| {
605 if phase != DispatchPhase::Bubble {
606 return;
607 }
608 editor.update(cx, |editor, cx| {
609 let inlay_hint_settings = inlay_hint_settings(
610 editor.selections.newest_anchor().head(),
611 &editor.buffer.read(cx).snapshot(cx),
612 cx,
613 );
614
615 if let Some(inlay_modifiers) = inlay_hint_settings
616 .toggle_on_modifiers_press
617 .as_ref()
618 .filter(|modifiers| modifiers.modified())
619 {
620 editor.refresh_inlay_hints(
621 InlayHintRefreshReason::ModifiersChanged(
622 inlay_modifiers == &event.modifiers,
623 ),
624 cx,
625 );
626 }
627
628 if editor.hover_state.focused(window, cx) {
629 return;
630 }
631
632 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
633 })
634 }
635 });
636 }
637
638 fn mouse_left_down(
639 editor: &mut Editor,
640 event: &MouseDownEvent,
641 hovered_hunk: Option<Range<Anchor>>,
642 position_map: &PositionMap,
643 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
644 window: &mut Window,
645 cx: &mut Context<Editor>,
646 ) {
647 if window.default_prevented() {
648 return;
649 }
650
651 let text_hitbox = &position_map.text_hitbox;
652 let gutter_hitbox = &position_map.gutter_hitbox;
653 let point_for_position = position_map.point_for_position(event.position);
654 let mut click_count = event.click_count;
655 let mut modifiers = event.modifiers;
656
657 if let Some(hovered_hunk) = hovered_hunk {
658 editor.toggle_single_diff_hunk(hovered_hunk, cx);
659 cx.notify();
660 return;
661 } else if gutter_hitbox.is_hovered(window) {
662 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
663 } else if !text_hitbox.is_hovered(window) {
664 return;
665 }
666
667 if EditorSettings::get_global(cx)
668 .drag_and_drop_selection
669 .enabled
670 && click_count == 1
671 {
672 let newest_anchor = editor.selections.newest_anchor();
673 let snapshot = editor.snapshot(window, cx);
674 let selection = newest_anchor.map(|anchor| anchor.to_display_point(&snapshot));
675 if point_for_position.intersects_selection(&selection) {
676 editor.selection_drag_state = SelectionDragState::ReadyToDrag {
677 selection: newest_anchor.clone(),
678 click_position: event.position,
679 mouse_down_time: Instant::now(),
680 };
681 cx.stop_propagation();
682 return;
683 }
684 }
685
686 let is_singleton = editor.buffer().read(cx).is_singleton();
687
688 if click_count == 2 && !is_singleton {
689 match EditorSettings::get_global(cx).double_click_in_multibuffer {
690 DoubleClickInMultibuffer::Select => {
691 // do nothing special on double click, all selection logic is below
692 }
693 DoubleClickInMultibuffer::Open => {
694 if modifiers.alt {
695 // if double click is made with alt, pretend it's a regular double click without opening and alt,
696 // and run the selection logic.
697 modifiers.alt = false;
698 } else {
699 let scroll_position_row =
700 position_map.scroll_pixel_position.y / position_map.line_height;
701 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
702 + position_map.scroll_pixel_position.y)
703 / position_map.line_height)
704 as u32;
705 let multi_buffer_row = position_map
706 .snapshot
707 .display_point_to_point(
708 DisplayPoint::new(DisplayRow(display_row), 0),
709 Bias::Right,
710 )
711 .row;
712 let line_offset_from_top = display_row - scroll_position_row as u32;
713 // if double click is made without alt, open the corresponding excerp
714 editor.open_excerpts_common(
715 Some(JumpData::MultiBufferRow {
716 row: MultiBufferRow(multi_buffer_row),
717 line_offset_from_top,
718 }),
719 false,
720 window,
721 cx,
722 );
723 return;
724 }
725 }
726 }
727 }
728
729 let position = point_for_position.previous_valid;
730 if let Some(mode) = Editor::columnar_selection_mode(&modifiers, cx) {
731 editor.select(
732 SelectPhase::BeginColumnar {
733 position,
734 reset: match mode {
735 ColumnarMode::FromMouse => true,
736 ColumnarMode::FromSelection => false,
737 },
738 mode,
739 goal_column: point_for_position.exact_unclipped.column(),
740 },
741 window,
742 cx,
743 );
744 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
745 {
746 editor.select(
747 SelectPhase::Extend {
748 position,
749 click_count,
750 },
751 window,
752 cx,
753 );
754 } else {
755 editor.select(
756 SelectPhase::Begin {
757 position,
758 add: Editor::multi_cursor_modifier(true, &modifiers, cx),
759 click_count,
760 },
761 window,
762 cx,
763 );
764 }
765 cx.stop_propagation();
766
767 if !is_singleton {
768 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
769 + position_map.scroll_pixel_position.y)
770 / position_map.line_height) as u32;
771 let multi_buffer_row = position_map
772 .snapshot
773 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
774 .row;
775 if line_numbers
776 .get(&MultiBufferRow(multi_buffer_row))
777 .and_then(|line_number| line_number.hitbox.as_ref())
778 .is_some_and(|hitbox| hitbox.contains(&event.position))
779 {
780 let scroll_position_row =
781 position_map.scroll_pixel_position.y / position_map.line_height;
782 let line_offset_from_top = display_row - scroll_position_row as u32;
783
784 editor.open_excerpts_common(
785 Some(JumpData::MultiBufferRow {
786 row: MultiBufferRow(multi_buffer_row),
787 line_offset_from_top,
788 }),
789 modifiers.alt,
790 window,
791 cx,
792 );
793 cx.stop_propagation();
794 }
795 }
796 }
797
798 fn mouse_right_down(
799 editor: &mut Editor,
800 event: &MouseDownEvent,
801 position_map: &PositionMap,
802 window: &mut Window,
803 cx: &mut Context<Editor>,
804 ) {
805 if position_map.gutter_hitbox.is_hovered(window) {
806 let gutter_right_padding = editor.gutter_dimensions.right_padding;
807 let hitbox = &position_map.gutter_hitbox;
808
809 if event.position.x <= hitbox.bounds.right() - gutter_right_padding {
810 let point_for_position = position_map.point_for_position(event.position);
811 editor.set_breakpoint_context_menu(
812 point_for_position.previous_valid.row(),
813 None,
814 event.position,
815 window,
816 cx,
817 );
818 }
819 return;
820 }
821
822 if !position_map.text_hitbox.is_hovered(window) {
823 return;
824 }
825
826 let point_for_position = position_map.point_for_position(event.position);
827 mouse_context_menu::deploy_context_menu(
828 editor,
829 Some(event.position),
830 point_for_position.previous_valid,
831 window,
832 cx,
833 );
834 cx.stop_propagation();
835 }
836
837 fn mouse_middle_down(
838 editor: &mut Editor,
839 event: &MouseDownEvent,
840 position_map: &PositionMap,
841 window: &mut Window,
842 cx: &mut Context<Editor>,
843 ) {
844 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
845 return;
846 }
847
848 let point_for_position = position_map.point_for_position(event.position);
849 let position = point_for_position.previous_valid;
850
851 editor.select(
852 SelectPhase::BeginColumnar {
853 position,
854 reset: true,
855 mode: ColumnarMode::FromMouse,
856 goal_column: point_for_position.exact_unclipped.column(),
857 },
858 window,
859 cx,
860 );
861 }
862
863 fn mouse_up(
864 editor: &mut Editor,
865 event: &MouseUpEvent,
866 position_map: &PositionMap,
867 window: &mut Window,
868 cx: &mut Context<Editor>,
869 ) {
870 let text_hitbox = &position_map.text_hitbox;
871 let end_selection = editor.has_pending_selection();
872 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
873 let point_for_position = position_map.point_for_position(event.position);
874
875 match editor.selection_drag_state {
876 SelectionDragState::ReadyToDrag {
877 selection: _,
878 ref click_position,
879 mouse_down_time: _,
880 } => {
881 if event.position == *click_position {
882 editor.select(
883 SelectPhase::Begin {
884 position: point_for_position.previous_valid,
885 add: false,
886 click_count: 1, // ready to drag state only occurs on click count 1
887 },
888 window,
889 cx,
890 );
891 editor.selection_drag_state = SelectionDragState::None;
892 cx.stop_propagation();
893 return;
894 } else {
895 debug_panic!("drag state can never be in ready state after drag")
896 }
897 }
898 SelectionDragState::Dragging { ref selection, .. } => {
899 let snapshot = editor.snapshot(window, cx);
900 let selection_display = selection.map(|anchor| anchor.to_display_point(&snapshot));
901 if !point_for_position.intersects_selection(&selection_display)
902 && text_hitbox.is_hovered(window)
903 {
904 let is_cut = !(cfg!(target_os = "macos") && event.modifiers.alt
905 || cfg!(not(target_os = "macos")) && event.modifiers.control);
906 editor.move_selection_on_drop(
907 &selection.clone(),
908 point_for_position.previous_valid,
909 is_cut,
910 window,
911 cx,
912 );
913 }
914 editor.selection_drag_state = SelectionDragState::None;
915 cx.stop_propagation();
916 cx.notify();
917 return;
918 }
919 _ => {}
920 }
921
922 if end_selection {
923 editor.select(SelectPhase::End, window, cx);
924 }
925
926 if end_selection && pending_nonempty_selections {
927 cx.stop_propagation();
928 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
929 && event.button == MouseButton::Middle
930 {
931 #[allow(
932 clippy::collapsible_if,
933 clippy::needless_return,
934 reason = "The cfg-block below makes this a false positive"
935 )]
936 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
937 return;
938 }
939
940 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
941 if EditorSettings::get_global(cx).middle_click_paste {
942 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
943 let point_for_position = position_map.point_for_position(event.position);
944 let position = point_for_position.previous_valid;
945
946 editor.select(
947 SelectPhase::Begin {
948 position,
949 add: false,
950 click_count: 1,
951 },
952 window,
953 cx,
954 );
955 editor.insert(&text, window, cx);
956 }
957 cx.stop_propagation()
958 }
959 }
960 }
961
962 fn click(
963 editor: &mut Editor,
964 event: &ClickEvent,
965 position_map: &PositionMap,
966 window: &mut Window,
967 cx: &mut Context<Editor>,
968 ) {
969 let text_hitbox = &position_map.text_hitbox;
970 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
971
972 let hovered_link_modifier = Editor::multi_cursor_modifier(false, &event.modifiers(), cx);
973
974 if let Some(mouse_position) = event.mouse_position()
975 && !pending_nonempty_selections
976 && hovered_link_modifier
977 && text_hitbox.is_hovered(window)
978 {
979 let point = position_map.point_for_position(mouse_position);
980 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
981 editor.selection_drag_state = SelectionDragState::None;
982
983 cx.stop_propagation();
984 }
985 }
986
987 fn mouse_dragged(
988 editor: &mut Editor,
989 event: &MouseMoveEvent,
990 position_map: &PositionMap,
991 window: &mut Window,
992 cx: &mut Context<Editor>,
993 ) {
994 if !editor.has_pending_selection()
995 && matches!(editor.selection_drag_state, SelectionDragState::None)
996 {
997 return;
998 }
999
1000 let point_for_position = position_map.point_for_position(event.position);
1001 let text_hitbox = &position_map.text_hitbox;
1002
1003 let scroll_delta = {
1004 let text_bounds = text_hitbox.bounds;
1005 let mut scroll_delta = gpui::Point::<f32>::default();
1006 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
1007 let top = text_bounds.origin.y + vertical_margin;
1008 let bottom = text_bounds.bottom_left().y - vertical_margin;
1009 if event.position.y < top {
1010 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
1011 }
1012 if event.position.y > bottom {
1013 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
1014 }
1015
1016 // We need horizontal width of text
1017 let style = editor.style.clone().unwrap_or_default();
1018 let font_id = window.text_system().resolve_font(&style.text.font());
1019 let font_size = style.text.font_size.to_pixels(window.rem_size());
1020 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
1021
1022 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
1023
1024 let scroll_space: Pixels = scroll_margin_x * em_width;
1025
1026 let left = text_bounds.origin.x + scroll_space;
1027 let right = text_bounds.top_right().x - scroll_space;
1028
1029 if event.position.x < left {
1030 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
1031 }
1032 if event.position.x > right {
1033 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
1034 }
1035 scroll_delta
1036 };
1037
1038 if !editor.has_pending_selection() {
1039 let drop_anchor = position_map
1040 .snapshot
1041 .display_point_to_anchor(point_for_position.previous_valid, Bias::Left);
1042 match editor.selection_drag_state {
1043 SelectionDragState::Dragging {
1044 ref mut drop_cursor,
1045 ref mut hide_drop_cursor,
1046 ..
1047 } => {
1048 drop_cursor.start = drop_anchor;
1049 drop_cursor.end = drop_anchor;
1050 *hide_drop_cursor = !text_hitbox.is_hovered(window);
1051 editor.apply_scroll_delta(scroll_delta, window, cx);
1052 cx.notify();
1053 }
1054 SelectionDragState::ReadyToDrag {
1055 ref selection,
1056 ref click_position,
1057 ref mouse_down_time,
1058 } => {
1059 let drag_and_drop_delay = Duration::from_millis(
1060 EditorSettings::get_global(cx).drag_and_drop_selection.delay,
1061 );
1062 if mouse_down_time.elapsed() >= drag_and_drop_delay {
1063 let drop_cursor = Selection {
1064 id: post_inc(&mut editor.selections.next_selection_id()),
1065 start: drop_anchor,
1066 end: drop_anchor,
1067 reversed: false,
1068 goal: SelectionGoal::None,
1069 };
1070 editor.selection_drag_state = SelectionDragState::Dragging {
1071 selection: selection.clone(),
1072 drop_cursor,
1073 hide_drop_cursor: false,
1074 };
1075 editor.apply_scroll_delta(scroll_delta, window, cx);
1076 cx.notify();
1077 } else {
1078 let click_point = position_map.point_for_position(*click_position);
1079 editor.selection_drag_state = SelectionDragState::None;
1080 editor.select(
1081 SelectPhase::Begin {
1082 position: click_point.previous_valid,
1083 add: false,
1084 click_count: 1,
1085 },
1086 window,
1087 cx,
1088 );
1089 editor.select(
1090 SelectPhase::Update {
1091 position: point_for_position.previous_valid,
1092 goal_column: point_for_position.exact_unclipped.column(),
1093 scroll_delta,
1094 },
1095 window,
1096 cx,
1097 );
1098 }
1099 }
1100 _ => {}
1101 }
1102 } else {
1103 editor.select(
1104 SelectPhase::Update {
1105 position: point_for_position.previous_valid,
1106 goal_column: point_for_position.exact_unclipped.column(),
1107 scroll_delta,
1108 },
1109 window,
1110 cx,
1111 );
1112 }
1113 }
1114
1115 fn mouse_moved(
1116 editor: &mut Editor,
1117 event: &MouseMoveEvent,
1118 position_map: &PositionMap,
1119 window: &mut Window,
1120 cx: &mut Context<Editor>,
1121 ) {
1122 let text_hitbox = &position_map.text_hitbox;
1123 let gutter_hitbox = &position_map.gutter_hitbox;
1124 let modifiers = event.modifiers;
1125 let text_hovered = text_hitbox.is_hovered(window);
1126 let gutter_hovered = gutter_hitbox.is_hovered(window);
1127 editor.set_gutter_hovered(gutter_hovered, cx);
1128 editor.show_mouse_cursor(cx);
1129
1130 let point_for_position = position_map.point_for_position(event.position);
1131 let valid_point = point_for_position.previous_valid;
1132
1133 let hovered_diff_control = position_map
1134 .diff_hunk_control_bounds
1135 .iter()
1136 .find(|(_, bounds)| bounds.contains(&event.position))
1137 .map(|(row, _)| *row);
1138
1139 let hovered_diff_hunk_row = if let Some(control_row) = hovered_diff_control {
1140 Some(control_row)
1141 } else if text_hovered {
1142 let current_row = valid_point.row();
1143 position_map.display_hunks.iter().find_map(|(hunk, _)| {
1144 if let DisplayDiffHunk::Unfolded {
1145 display_row_range, ..
1146 } = hunk
1147 {
1148 if display_row_range.contains(¤t_row) {
1149 Some(display_row_range.start)
1150 } else {
1151 None
1152 }
1153 } else {
1154 None
1155 }
1156 })
1157 } else {
1158 None
1159 };
1160
1161 if hovered_diff_hunk_row != editor.hovered_diff_hunk_row {
1162 editor.hovered_diff_hunk_row = hovered_diff_hunk_row;
1163 cx.notify();
1164 }
1165
1166 if let Some((bounds, buffer_id, blame_entry)) = &position_map.inline_blame_bounds {
1167 let mouse_over_inline_blame = bounds.contains(&event.position);
1168 let mouse_over_popover = editor
1169 .inline_blame_popover
1170 .as_ref()
1171 .and_then(|state| state.popover_bounds)
1172 .is_some_and(|bounds| bounds.contains(&event.position));
1173 let keyboard_grace = editor
1174 .inline_blame_popover
1175 .as_ref()
1176 .is_some_and(|state| state.keyboard_grace);
1177
1178 if mouse_over_inline_blame || mouse_over_popover {
1179 editor.show_blame_popover(*buffer_id, blame_entry, event.position, false, cx);
1180 } else if !keyboard_grace {
1181 editor.hide_blame_popover(cx);
1182 }
1183 } else {
1184 editor.hide_blame_popover(cx);
1185 }
1186
1187 let breakpoint_indicator = if gutter_hovered {
1188 let buffer_anchor = position_map
1189 .snapshot
1190 .display_point_to_anchor(valid_point, Bias::Left);
1191
1192 if let Some((buffer_snapshot, file)) = position_map
1193 .snapshot
1194 .buffer_snapshot
1195 .buffer_for_excerpt(buffer_anchor.excerpt_id)
1196 .and_then(|buffer| buffer.file().map(|file| (buffer, file)))
1197 {
1198 let as_point = text::ToPoint::to_point(&buffer_anchor.text_anchor, buffer_snapshot);
1199
1200 let is_visible = editor
1201 .gutter_breakpoint_indicator
1202 .0
1203 .is_some_and(|indicator| indicator.is_active);
1204
1205 let has_existing_breakpoint =
1206 editor.breakpoint_store.as_ref().is_some_and(|store| {
1207 let Some(project) = &editor.project else {
1208 return false;
1209 };
1210 let Some(abs_path) = project.read(cx).absolute_path(
1211 &ProjectPath {
1212 path: file.path().clone(),
1213 worktree_id: file.worktree_id(cx),
1214 },
1215 cx,
1216 ) else {
1217 return false;
1218 };
1219 store
1220 .read(cx)
1221 .breakpoint_at_row(&abs_path, as_point.row, cx)
1222 .is_some()
1223 });
1224
1225 if !is_visible {
1226 editor.gutter_breakpoint_indicator.1.get_or_insert_with(|| {
1227 cx.spawn(async move |this, cx| {
1228 cx.background_executor()
1229 .timer(Duration::from_millis(200))
1230 .await;
1231
1232 this.update(cx, |this, cx| {
1233 if let Some(indicator) = this.gutter_breakpoint_indicator.0.as_mut()
1234 {
1235 indicator.is_active = true;
1236 cx.notify();
1237 }
1238 })
1239 .ok();
1240 })
1241 });
1242 }
1243
1244 Some(PhantomBreakpointIndicator {
1245 display_row: valid_point.row(),
1246 is_active: is_visible,
1247 collides_with_existing_breakpoint: has_existing_breakpoint,
1248 })
1249 } else {
1250 editor.gutter_breakpoint_indicator.1 = None;
1251 None
1252 }
1253 } else {
1254 editor.gutter_breakpoint_indicator.1 = None;
1255 None
1256 };
1257
1258 if &breakpoint_indicator != &editor.gutter_breakpoint_indicator.0 {
1259 editor.gutter_breakpoint_indicator.0 = breakpoint_indicator;
1260 cx.notify();
1261 }
1262
1263 // Don't trigger hover popover if mouse is hovering over context menu
1264 if text_hovered {
1265 editor.update_hovered_link(
1266 point_for_position,
1267 &position_map.snapshot,
1268 modifiers,
1269 window,
1270 cx,
1271 );
1272
1273 if let Some(point) = point_for_position.as_valid() {
1274 let anchor = position_map
1275 .snapshot
1276 .buffer_snapshot
1277 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
1278 hover_at(editor, Some(anchor), window, cx);
1279 Self::update_visible_cursor(editor, point, position_map, window, cx);
1280 } else {
1281 hover_at(editor, None, window, cx);
1282 }
1283 } else {
1284 editor.hide_hovered_link(cx);
1285 hover_at(editor, None, window, cx);
1286 }
1287 }
1288
1289 fn update_visible_cursor(
1290 editor: &mut Editor,
1291 point: DisplayPoint,
1292 position_map: &PositionMap,
1293 window: &mut Window,
1294 cx: &mut Context<Editor>,
1295 ) {
1296 let snapshot = &position_map.snapshot;
1297 let Some(hub) = editor.collaboration_hub() else {
1298 return;
1299 };
1300 let start = snapshot.display_snapshot.clip_point(
1301 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
1302 Bias::Left,
1303 );
1304 let end = snapshot.display_snapshot.clip_point(
1305 DisplayPoint::new(
1306 point.row(),
1307 (point.column() + 1).min(snapshot.line_len(point.row())),
1308 ),
1309 Bias::Right,
1310 );
1311
1312 let range = snapshot
1313 .buffer_snapshot
1314 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
1315 ..snapshot
1316 .buffer_snapshot
1317 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
1318
1319 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
1320 return;
1321 };
1322 let key = crate::HoveredCursor {
1323 replica_id: selection.replica_id,
1324 selection_id: selection.selection.id,
1325 };
1326 editor.hovered_cursors.insert(
1327 key.clone(),
1328 cx.spawn_in(window, async move |editor, cx| {
1329 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
1330 editor
1331 .update(cx, |editor, cx| {
1332 editor.hovered_cursors.remove(&key);
1333 cx.notify();
1334 })
1335 .ok();
1336 }),
1337 );
1338 cx.notify()
1339 }
1340
1341 fn layout_selections(
1342 &self,
1343 start_anchor: Anchor,
1344 end_anchor: Anchor,
1345 local_selections: &[Selection<Point>],
1346 snapshot: &EditorSnapshot,
1347 start_row: DisplayRow,
1348 end_row: DisplayRow,
1349 window: &mut Window,
1350 cx: &mut App,
1351 ) -> (
1352 Vec<(PlayerColor, Vec<SelectionLayout>)>,
1353 BTreeMap<DisplayRow, LineHighlightSpec>,
1354 Option<DisplayPoint>,
1355 ) {
1356 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1357 let mut active_rows = BTreeMap::new();
1358 let mut newest_selection_head = None;
1359
1360 let Some(editor_with_selections) = self.editor_with_selections(cx) else {
1361 return (selections, active_rows, newest_selection_head);
1362 };
1363
1364 editor_with_selections.update(cx, |editor, cx| {
1365 if editor.show_local_selections {
1366 let mut layouts = Vec::new();
1367 let newest = editor.selections.newest(cx);
1368 for selection in local_selections.iter().cloned() {
1369 let is_empty = selection.start == selection.end;
1370 let is_newest = selection == newest;
1371
1372 let layout = SelectionLayout::new(
1373 selection,
1374 editor.selections.line_mode,
1375 editor.cursor_shape,
1376 &snapshot.display_snapshot,
1377 is_newest,
1378 editor.leader_id.is_none(),
1379 None,
1380 );
1381 if is_newest {
1382 newest_selection_head = Some(layout.head);
1383 }
1384
1385 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1386 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1387 {
1388 let contains_non_empty_selection = active_rows
1389 .entry(DisplayRow(row))
1390 .or_insert_with(LineHighlightSpec::default);
1391 contains_non_empty_selection.selection |= !is_empty;
1392 }
1393 layouts.push(layout);
1394 }
1395
1396 let player = editor.current_user_player_color(cx);
1397 selections.push((player, layouts));
1398
1399 if let SelectionDragState::Dragging {
1400 ref selection,
1401 ref drop_cursor,
1402 ref hide_drop_cursor,
1403 } = editor.selection_drag_state
1404 && !hide_drop_cursor
1405 && (drop_cursor
1406 .start
1407 .cmp(&selection.start, &snapshot.buffer_snapshot)
1408 .eq(&Ordering::Less)
1409 || drop_cursor
1410 .end
1411 .cmp(&selection.end, &snapshot.buffer_snapshot)
1412 .eq(&Ordering::Greater))
1413 {
1414 let drag_cursor_layout = SelectionLayout::new(
1415 drop_cursor.clone(),
1416 false,
1417 CursorShape::Bar,
1418 &snapshot.display_snapshot,
1419 false,
1420 false,
1421 None,
1422 );
1423 let absent_color = cx.theme().players().absent();
1424 selections.push((absent_color, vec![drag_cursor_layout]));
1425 }
1426 }
1427
1428 if let Some(collaboration_hub) = &editor.collaboration_hub {
1429 // When following someone, render the local selections in their color.
1430 if let Some(leader_id) = editor.leader_id {
1431 match leader_id {
1432 CollaboratorId::PeerId(peer_id) => {
1433 if let Some(collaborator) =
1434 collaboration_hub.collaborators(cx).get(&peer_id)
1435 && let Some(participant_index) = collaboration_hub
1436 .user_participant_indices(cx)
1437 .get(&collaborator.user_id)
1438 && let Some((local_selection_style, _)) = selections.first_mut()
1439 {
1440 *local_selection_style = cx
1441 .theme()
1442 .players()
1443 .color_for_participant(participant_index.0);
1444 }
1445 }
1446 CollaboratorId::Agent => {
1447 if let Some((local_selection_style, _)) = selections.first_mut() {
1448 *local_selection_style = cx.theme().players().agent();
1449 }
1450 }
1451 }
1452 }
1453
1454 let mut remote_selections = HashMap::default();
1455 for selection in snapshot.remote_selections_in_range(
1456 &(start_anchor..end_anchor),
1457 collaboration_hub.as_ref(),
1458 cx,
1459 ) {
1460 // Don't re-render the leader's selections, since the local selections
1461 // match theirs.
1462 if Some(selection.collaborator_id) == editor.leader_id {
1463 continue;
1464 }
1465 let key = HoveredCursor {
1466 replica_id: selection.replica_id,
1467 selection_id: selection.selection.id,
1468 };
1469
1470 let is_shown =
1471 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1472
1473 remote_selections
1474 .entry(selection.replica_id)
1475 .or_insert((selection.color, Vec::new()))
1476 .1
1477 .push(SelectionLayout::new(
1478 selection.selection,
1479 selection.line_mode,
1480 selection.cursor_shape,
1481 &snapshot.display_snapshot,
1482 false,
1483 false,
1484 if is_shown { selection.user_name } else { None },
1485 ));
1486 }
1487
1488 selections.extend(remote_selections.into_values());
1489 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1490 let layouts = snapshot
1491 .buffer_snapshot
1492 .selections_in_range(&(start_anchor..end_anchor), true)
1493 .map(move |(_, line_mode, cursor_shape, selection)| {
1494 SelectionLayout::new(
1495 selection,
1496 line_mode,
1497 cursor_shape,
1498 &snapshot.display_snapshot,
1499 false,
1500 false,
1501 None,
1502 )
1503 })
1504 .collect::<Vec<_>>();
1505 let player = editor.current_user_player_color(cx);
1506 selections.push((player, layouts));
1507 }
1508 });
1509
1510 #[cfg(debug_assertions)]
1511 Self::layout_debug_ranges(
1512 &mut selections,
1513 start_anchor..end_anchor,
1514 &snapshot.display_snapshot,
1515 cx,
1516 );
1517
1518 (selections, active_rows, newest_selection_head)
1519 }
1520
1521 fn collect_cursors(
1522 &self,
1523 snapshot: &EditorSnapshot,
1524 cx: &mut App,
1525 ) -> Vec<(DisplayPoint, Hsla)> {
1526 let editor = self.editor.read(cx);
1527 let mut cursors = Vec::new();
1528 let mut skip_local = false;
1529 let mut add_cursor = |anchor: Anchor, color| {
1530 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1531 };
1532 // Remote cursors
1533 if let Some(collaboration_hub) = &editor.collaboration_hub {
1534 for remote_selection in snapshot.remote_selections_in_range(
1535 &(Anchor::min()..Anchor::max()),
1536 collaboration_hub.deref(),
1537 cx,
1538 ) {
1539 add_cursor(
1540 remote_selection.selection.head(),
1541 remote_selection.color.cursor,
1542 );
1543 if Some(remote_selection.collaborator_id) == editor.leader_id {
1544 skip_local = true;
1545 }
1546 }
1547 }
1548 // Local cursors
1549 if !skip_local {
1550 let color = cx.theme().players().local().cursor;
1551 editor
1552 .selections
1553 .disjoint_anchors()
1554 .iter()
1555 .for_each(|selection| {
1556 add_cursor(selection.head(), color);
1557 });
1558 if let Some(ref selection) = editor.selections.pending_anchor() {
1559 add_cursor(selection.head(), color);
1560 }
1561 }
1562 cursors
1563 }
1564
1565 fn layout_visible_cursors(
1566 &self,
1567 snapshot: &EditorSnapshot,
1568 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1569 row_block_types: &HashMap<DisplayRow, bool>,
1570 visible_display_row_range: Range<DisplayRow>,
1571 line_layouts: &[LineWithInvisibles],
1572 text_hitbox: &Hitbox,
1573 content_origin: gpui::Point<Pixels>,
1574 scroll_position: gpui::Point<f32>,
1575 scroll_pixel_position: gpui::Point<Pixels>,
1576 line_height: Pixels,
1577 em_width: Pixels,
1578 em_advance: Pixels,
1579 autoscroll_containing_element: bool,
1580 window: &mut Window,
1581 cx: &mut App,
1582 ) -> Vec<CursorLayout> {
1583 let mut autoscroll_bounds = None;
1584 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1585 let mut cursors = Vec::new();
1586
1587 let show_local_cursors = editor.show_local_cursors(window, cx);
1588
1589 for (player_color, selections) in selections {
1590 for selection in selections {
1591 let cursor_position = selection.head;
1592
1593 let in_range = visible_display_row_range.contains(&cursor_position.row());
1594 if (selection.is_local && !show_local_cursors)
1595 || !in_range
1596 || row_block_types.get(&cursor_position.row()) == Some(&true)
1597 {
1598 continue;
1599 }
1600
1601 let cursor_row_layout = &line_layouts
1602 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1603 let cursor_column = cursor_position.column() as usize;
1604
1605 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1606 let mut block_width =
1607 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1608 if block_width == Pixels::ZERO {
1609 block_width = em_advance;
1610 }
1611 let block_text = if let CursorShape::Block = selection.cursor_shape {
1612 snapshot
1613 .grapheme_at(cursor_position)
1614 .or_else(|| {
1615 if snapshot.is_empty() {
1616 snapshot.placeholder_text().and_then(|s| {
1617 s.graphemes(true).next().map(|s| s.to_string().into())
1618 })
1619 } else {
1620 None
1621 }
1622 })
1623 .map(|text| {
1624 let len = text.len();
1625
1626 let font = cursor_row_layout
1627 .font_id_for_index(cursor_column)
1628 .and_then(|cursor_font_id| {
1629 window.text_system().get_font_for_id(cursor_font_id)
1630 })
1631 .unwrap_or(self.style.text.font());
1632
1633 // Invert the text color for the block cursor. Ensure that the text
1634 // color is opaque enough to be visible against the background color.
1635 //
1636 // 0.75 is an arbitrary threshold to determine if the background color is
1637 // opaque enough to use as a text color.
1638 //
1639 // TODO: In the future we should ensure themes have a `text_inverse` color.
1640 let color = if cx.theme().colors().editor_background.a < 0.75 {
1641 match cx.theme().appearance {
1642 Appearance::Dark => Hsla::black(),
1643 Appearance::Light => Hsla::white(),
1644 }
1645 } else {
1646 cx.theme().colors().editor_background
1647 };
1648
1649 window.text_system().shape_line(
1650 text,
1651 cursor_row_layout.font_size,
1652 &[TextRun {
1653 len,
1654 font,
1655 color,
1656 background_color: None,
1657 strikethrough: None,
1658 underline: None,
1659 }],
1660 None,
1661 )
1662 })
1663 } else {
1664 None
1665 };
1666
1667 let x = cursor_character_x - scroll_pixel_position.x;
1668 let y = (cursor_position.row().as_f32()
1669 - scroll_pixel_position.y / line_height)
1670 * line_height;
1671 if selection.is_newest {
1672 editor.pixel_position_of_newest_cursor = Some(point(
1673 text_hitbox.origin.x + x + block_width / 2.,
1674 text_hitbox.origin.y + y + line_height / 2.,
1675 ));
1676
1677 if autoscroll_containing_element {
1678 let top = text_hitbox.origin.y
1679 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1680 * line_height;
1681 let left = text_hitbox.origin.x
1682 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1683 .max(0.)
1684 * em_width;
1685
1686 let bottom = text_hitbox.origin.y
1687 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1688 * line_height;
1689 let right = text_hitbox.origin.x
1690 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1691 * em_width;
1692
1693 autoscroll_bounds =
1694 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1695 }
1696 }
1697
1698 let mut cursor = CursorLayout {
1699 color: player_color.cursor,
1700 block_width,
1701 origin: point(x, y),
1702 line_height,
1703 shape: selection.cursor_shape,
1704 block_text,
1705 cursor_name: None,
1706 };
1707 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1708 string: name,
1709 color: self.style.background,
1710 is_top_row: cursor_position.row().0 == 0,
1711 });
1712 cursor.layout(content_origin, cursor_name, window, cx);
1713 cursors.push(cursor);
1714 }
1715 }
1716
1717 cursors
1718 });
1719
1720 if let Some(bounds) = autoscroll_bounds {
1721 window.request_autoscroll(bounds);
1722 }
1723
1724 cursor_layouts
1725 }
1726
1727 fn layout_scrollbars(
1728 &self,
1729 snapshot: &EditorSnapshot,
1730 scrollbar_layout_information: &ScrollbarLayoutInformation,
1731 content_offset: gpui::Point<Pixels>,
1732 scroll_position: gpui::Point<f32>,
1733 non_visible_cursors: bool,
1734 right_margin: Pixels,
1735 editor_width: Pixels,
1736 window: &mut Window,
1737 cx: &mut App,
1738 ) -> Option<EditorScrollbars> {
1739 let show_scrollbars = self.editor.read(cx).show_scrollbars;
1740 if (!show_scrollbars.horizontal && !show_scrollbars.vertical)
1741 || self.style.scrollbar_width.is_zero()
1742 {
1743 return None;
1744 }
1745
1746 // If a drag took place after we started dragging the scrollbar,
1747 // cancel the scrollbar drag.
1748 if cx.has_active_drag() {
1749 self.editor.update(cx, |editor, cx| {
1750 editor.scroll_manager.reset_scrollbar_state(cx)
1751 });
1752 }
1753
1754 let editor_settings = EditorSettings::get_global(cx);
1755 let scrollbar_settings = editor_settings.scrollbar;
1756 let show_scrollbars = match scrollbar_settings.show {
1757 ShowScrollbar::Auto => {
1758 let editor = self.editor.read(cx);
1759 let is_singleton = editor.is_singleton(cx);
1760 // Git
1761 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1762 ||
1763 // Buffer Search Results
1764 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1765 ||
1766 // Selected Text Occurrences
1767 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1768 ||
1769 // Selected Symbol Occurrences
1770 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1771 ||
1772 // Diagnostics
1773 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1774 ||
1775 // Cursors out of sight
1776 non_visible_cursors
1777 ||
1778 // Scrollmanager
1779 editor.scroll_manager.scrollbars_visible()
1780 }
1781 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1782 ShowScrollbar::Always => true,
1783 ShowScrollbar::Never => return None,
1784 };
1785
1786 // The horizontal scrollbar is usually slightly offset to align nicely with
1787 // indent guides. However, this offset is not needed if indent guides are
1788 // disabled for the current editor.
1789 let content_offset = self
1790 .editor
1791 .read(cx)
1792 .show_indent_guides
1793 .is_none_or(|should_show| should_show)
1794 .then_some(content_offset)
1795 .unwrap_or_default();
1796
1797 Some(EditorScrollbars::from_scrollbar_axes(
1798 ScrollbarAxes {
1799 horizontal: scrollbar_settings.axes.horizontal
1800 && self.editor.read(cx).show_scrollbars.horizontal,
1801 vertical: scrollbar_settings.axes.vertical
1802 && self.editor.read(cx).show_scrollbars.vertical,
1803 },
1804 scrollbar_layout_information,
1805 content_offset,
1806 scroll_position,
1807 self.style.scrollbar_width,
1808 right_margin,
1809 editor_width,
1810 show_scrollbars,
1811 self.editor.read(cx).scroll_manager.active_scrollbar_state(),
1812 window,
1813 ))
1814 }
1815
1816 fn layout_minimap(
1817 &self,
1818 snapshot: &EditorSnapshot,
1819 minimap_width: Pixels,
1820 scroll_position: gpui::Point<f32>,
1821 scrollbar_layout_information: &ScrollbarLayoutInformation,
1822 scrollbar_layout: Option<&EditorScrollbars>,
1823 window: &mut Window,
1824 cx: &mut App,
1825 ) -> Option<MinimapLayout> {
1826 let minimap_editor = self.editor.read(cx).minimap().cloned()?;
1827
1828 let minimap_settings = EditorSettings::get_global(cx).minimap;
1829
1830 if minimap_settings.on_active_editor() {
1831 let active_editor = self.editor.read(cx).workspace().and_then(|ws| {
1832 ws.read(cx)
1833 .active_pane()
1834 .read(cx)
1835 .active_item()
1836 .and_then(|i| i.act_as::<Editor>(cx))
1837 });
1838 if active_editor.is_some_and(|e| e != self.editor) {
1839 return None;
1840 }
1841 }
1842
1843 if !snapshot.mode.is_full()
1844 || minimap_width.is_zero()
1845 || matches!(
1846 minimap_settings.show,
1847 ShowMinimap::Auto if scrollbar_layout.is_none_or(|layout| !layout.visible)
1848 )
1849 {
1850 return None;
1851 }
1852
1853 const MINIMAP_AXIS: ScrollbarAxis = ScrollbarAxis::Vertical;
1854
1855 let ScrollbarLayoutInformation {
1856 editor_bounds,
1857 scroll_range,
1858 glyph_grid_cell,
1859 } = scrollbar_layout_information;
1860
1861 let line_height = glyph_grid_cell.height;
1862 let scroll_position = scroll_position.along(MINIMAP_AXIS);
1863
1864 let top_right_anchor = scrollbar_layout
1865 .and_then(|layout| layout.vertical.as_ref())
1866 .map(|vertical_scrollbar| vertical_scrollbar.hitbox.origin)
1867 .unwrap_or_else(|| editor_bounds.top_right());
1868
1869 let thumb_state = self
1870 .editor
1871 .read_with(cx, |editor, _| editor.scroll_manager.minimap_thumb_state());
1872
1873 let show_thumb = match minimap_settings.thumb {
1874 MinimapThumb::Always => true,
1875 MinimapThumb::Hover => thumb_state.is_some(),
1876 };
1877
1878 let minimap_bounds = Bounds::from_corner_and_size(
1879 Corner::TopRight,
1880 top_right_anchor,
1881 size(minimap_width, editor_bounds.size.height),
1882 );
1883 let minimap_line_height = self.get_minimap_line_height(
1884 minimap_editor
1885 .read(cx)
1886 .text_style_refinement
1887 .as_ref()
1888 .and_then(|refinement| refinement.font_size)
1889 .unwrap_or(MINIMAP_FONT_SIZE),
1890 window,
1891 cx,
1892 );
1893 let minimap_height = minimap_bounds.size.height;
1894
1895 let visible_editor_lines = editor_bounds.size.height / line_height;
1896 let total_editor_lines = scroll_range.height / line_height;
1897 let minimap_lines = minimap_height / minimap_line_height;
1898
1899 let minimap_scroll_top = MinimapLayout::calculate_minimap_top_offset(
1900 total_editor_lines,
1901 visible_editor_lines,
1902 minimap_lines,
1903 scroll_position,
1904 );
1905
1906 let layout = ScrollbarLayout::for_minimap(
1907 window.insert_hitbox(minimap_bounds, HitboxBehavior::Normal),
1908 visible_editor_lines,
1909 total_editor_lines,
1910 minimap_line_height,
1911 scroll_position,
1912 minimap_scroll_top,
1913 show_thumb,
1914 )
1915 .with_thumb_state(thumb_state);
1916
1917 minimap_editor.update(cx, |editor, cx| {
1918 editor.set_scroll_position(point(0., minimap_scroll_top), window, cx)
1919 });
1920
1921 // Required for the drop shadow to be visible
1922 const PADDING_OFFSET: Pixels = px(4.);
1923
1924 let mut minimap = div()
1925 .size_full()
1926 .shadow_xs()
1927 .px(PADDING_OFFSET)
1928 .child(minimap_editor)
1929 .into_any_element();
1930
1931 let extended_bounds = minimap_bounds.extend(Edges {
1932 right: PADDING_OFFSET,
1933 left: PADDING_OFFSET,
1934 ..Default::default()
1935 });
1936 minimap.layout_as_root(extended_bounds.size.into(), window, cx);
1937 window.with_absolute_element_offset(extended_bounds.origin, |window| {
1938 minimap.prepaint(window, cx)
1939 });
1940
1941 Some(MinimapLayout {
1942 minimap,
1943 thumb_layout: layout,
1944 thumb_border_style: minimap_settings.thumb_border,
1945 minimap_line_height,
1946 minimap_scroll_top,
1947 max_scroll_top: total_editor_lines,
1948 })
1949 }
1950
1951 fn get_minimap_line_height(
1952 &self,
1953 font_size: AbsoluteLength,
1954 window: &mut Window,
1955 cx: &mut App,
1956 ) -> Pixels {
1957 let rem_size = self.rem_size(cx).unwrap_or(window.rem_size());
1958 let mut text_style = self.style.text.clone();
1959 text_style.font_size = font_size;
1960 text_style.line_height_in_pixels(rem_size)
1961 }
1962
1963 fn get_minimap_width(
1964 &self,
1965 minimap_settings: &Minimap,
1966 scrollbars_shown: bool,
1967 text_width: Pixels,
1968 em_width: Pixels,
1969 font_size: Pixels,
1970 rem_size: Pixels,
1971 cx: &App,
1972 ) -> Option<Pixels> {
1973 if minimap_settings.show == ShowMinimap::Auto && !scrollbars_shown {
1974 return None;
1975 }
1976
1977 let minimap_font_size = self.editor.read_with(cx, |editor, cx| {
1978 editor.minimap().map(|minimap_editor| {
1979 minimap_editor
1980 .read(cx)
1981 .text_style_refinement
1982 .as_ref()
1983 .and_then(|refinement| refinement.font_size)
1984 .unwrap_or(MINIMAP_FONT_SIZE)
1985 })
1986 })?;
1987
1988 let minimap_em_width = em_width * (minimap_font_size.to_pixels(rem_size) / font_size);
1989
1990 let minimap_width = (text_width * MinimapLayout::MINIMAP_WIDTH_PCT)
1991 .min(minimap_em_width * minimap_settings.max_width_columns.get() as f32);
1992
1993 (minimap_width >= minimap_em_width * MinimapLayout::MINIMAP_MIN_WIDTH_COLUMNS)
1994 .then_some(minimap_width)
1995 }
1996
1997 fn prepaint_crease_toggles(
1998 &self,
1999 crease_toggles: &mut [Option<AnyElement>],
2000 line_height: Pixels,
2001 gutter_dimensions: &GutterDimensions,
2002 gutter_settings: crate::editor_settings::Gutter,
2003 scroll_pixel_position: gpui::Point<Pixels>,
2004 gutter_hitbox: &Hitbox,
2005 window: &mut Window,
2006 cx: &mut App,
2007 ) {
2008 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
2009 if let Some(crease_toggle) = crease_toggle {
2010 debug_assert!(gutter_settings.folds);
2011 let available_space = size(
2012 AvailableSpace::MinContent,
2013 AvailableSpace::Definite(line_height * 0.55),
2014 );
2015 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
2016
2017 let position = point(
2018 gutter_dimensions.width - gutter_dimensions.right_padding,
2019 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
2020 );
2021 let centering_offset = point(
2022 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
2023 (line_height - crease_toggle_size.height) / 2.,
2024 );
2025 let origin = gutter_hitbox.origin + position + centering_offset;
2026 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
2027 }
2028 }
2029 }
2030
2031 fn prepaint_expand_toggles(
2032 &self,
2033 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
2034 window: &mut Window,
2035 cx: &mut App,
2036 ) {
2037 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
2038 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
2039 expand_toggle.layout_as_root(available_space, window, cx);
2040 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
2041 }
2042 }
2043
2044 fn prepaint_crease_trailers(
2045 &self,
2046 trailers: Vec<Option<AnyElement>>,
2047 lines: &[LineWithInvisibles],
2048 line_height: Pixels,
2049 content_origin: gpui::Point<Pixels>,
2050 scroll_pixel_position: gpui::Point<Pixels>,
2051 em_width: Pixels,
2052 window: &mut Window,
2053 cx: &mut App,
2054 ) -> Vec<Option<CreaseTrailerLayout>> {
2055 trailers
2056 .into_iter()
2057 .enumerate()
2058 .map(|(ix, element)| {
2059 let mut element = element?;
2060 let available_space = size(
2061 AvailableSpace::MinContent,
2062 AvailableSpace::Definite(line_height),
2063 );
2064 let size = element.layout_as_root(available_space, window, cx);
2065
2066 let line = &lines[ix];
2067 let padding = if line.width == Pixels::ZERO {
2068 Pixels::ZERO
2069 } else {
2070 4. * em_width
2071 };
2072 let position = point(
2073 scroll_pixel_position.x + line.width + padding,
2074 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
2075 );
2076 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
2077 let origin = content_origin + position + centering_offset;
2078 element.prepaint_as_root(origin, available_space, window, cx);
2079 Some(CreaseTrailerLayout {
2080 element,
2081 bounds: Bounds::new(origin, size),
2082 })
2083 })
2084 .collect()
2085 }
2086
2087 // Folds contained in a hunk are ignored apart from shrinking visual size
2088 // If a fold contains any hunks then that fold line is marked as modified
2089 fn layout_gutter_diff_hunks(
2090 &self,
2091 line_height: Pixels,
2092 gutter_hitbox: &Hitbox,
2093 display_rows: Range<DisplayRow>,
2094 snapshot: &EditorSnapshot,
2095 window: &mut Window,
2096 cx: &mut App,
2097 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
2098 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
2099 let mut display_hunks = snapshot
2100 .display_diff_hunks_for_rows(display_rows, folded_buffers)
2101 .map(|hunk| (hunk, None))
2102 .collect::<Vec<_>>();
2103 let git_gutter_setting = ProjectSettings::get_global(cx).git.git_gutter;
2104 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
2105 for (hunk, hitbox) in &mut display_hunks {
2106 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
2107 let hunk_bounds =
2108 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
2109 *hitbox = Some(window.insert_hitbox(hunk_bounds, HitboxBehavior::BlockMouse));
2110 }
2111 }
2112 }
2113
2114 display_hunks
2115 }
2116
2117 fn layout_inline_diagnostics(
2118 &self,
2119 line_layouts: &[LineWithInvisibles],
2120 crease_trailers: &[Option<CreaseTrailerLayout>],
2121 row_block_types: &HashMap<DisplayRow, bool>,
2122 content_origin: gpui::Point<Pixels>,
2123 scroll_pixel_position: gpui::Point<Pixels>,
2124 edit_prediction_popover_origin: Option<gpui::Point<Pixels>>,
2125 start_row: DisplayRow,
2126 end_row: DisplayRow,
2127 line_height: Pixels,
2128 em_width: Pixels,
2129 style: &EditorStyle,
2130 window: &mut Window,
2131 cx: &mut App,
2132 ) -> HashMap<DisplayRow, AnyElement> {
2133 let max_severity = match self
2134 .editor
2135 .read(cx)
2136 .inline_diagnostics_enabled()
2137 .then(|| {
2138 ProjectSettings::get_global(cx)
2139 .diagnostics
2140 .inline
2141 .max_severity
2142 .unwrap_or_else(|| self.editor.read(cx).diagnostics_max_severity)
2143 .into_lsp()
2144 })
2145 .flatten()
2146 {
2147 Some(max_severity) => max_severity,
2148 None => return HashMap::default(),
2149 };
2150
2151 let active_diagnostics_group =
2152 if let ActiveDiagnostic::Group(group) = &self.editor.read(cx).active_diagnostics {
2153 Some(group.group_id)
2154 } else {
2155 None
2156 };
2157
2158 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
2159 let snapshot = editor.snapshot(window, cx);
2160 editor
2161 .inline_diagnostics
2162 .iter()
2163 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
2164 .filter(|(_, diagnostic)| match active_diagnostics_group {
2165 Some(active_diagnostics_group) => {
2166 // Active diagnostics are all shown in the editor already, no need to display them inline
2167 diagnostic.group_id != active_diagnostics_group
2168 }
2169 None => true,
2170 })
2171 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
2172 .skip_while(|(point, _)| point.row() < start_row)
2173 .take_while(|(point, _)| point.row() < end_row)
2174 .filter(|(point, _)| !row_block_types.contains_key(&point.row()))
2175 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
2176 acc.entry(point.row())
2177 .or_insert_with(Vec::new)
2178 .push(diagnostic);
2179 acc
2180 })
2181 });
2182
2183 if diagnostics_by_rows.is_empty() {
2184 return HashMap::default();
2185 }
2186
2187 let severity_to_color = |sev: &lsp::DiagnosticSeverity| match sev {
2188 &lsp::DiagnosticSeverity::ERROR => Color::Error,
2189 &lsp::DiagnosticSeverity::WARNING => Color::Warning,
2190 &lsp::DiagnosticSeverity::INFORMATION => Color::Info,
2191 &lsp::DiagnosticSeverity::HINT => Color::Hint,
2192 _ => Color::Error,
2193 };
2194
2195 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
2196 let min_x = self.column_pixels(
2197 ProjectSettings::get_global(cx)
2198 .diagnostics
2199 .inline
2200 .min_column as usize,
2201 window,
2202 );
2203
2204 let mut elements = HashMap::default();
2205 for (row, mut diagnostics) in diagnostics_by_rows {
2206 diagnostics.sort_by_key(|diagnostic| {
2207 (
2208 diagnostic.severity,
2209 std::cmp::Reverse(diagnostic.is_primary),
2210 diagnostic.start.row,
2211 diagnostic.start.column,
2212 )
2213 });
2214
2215 let Some(diagnostic_to_render) = diagnostics
2216 .iter()
2217 .find(|diagnostic| diagnostic.is_primary)
2218 .or_else(|| diagnostics.first())
2219 else {
2220 continue;
2221 };
2222
2223 let pos_y = content_origin.y
2224 + line_height * (row.0 as f32 - scroll_pixel_position.y / line_height);
2225
2226 let window_ix = row.0.saturating_sub(start_row.0) as usize;
2227 let pos_x = {
2228 let crease_trailer_layout = &crease_trailers[window_ix];
2229 let line_layout = &line_layouts[window_ix];
2230
2231 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
2232 crease_trailer.bounds.right()
2233 } else {
2234 content_origin.x - scroll_pixel_position.x + line_layout.width
2235 };
2236
2237 let padded_line = line_end + padding;
2238 let min_start = content_origin.x - scroll_pixel_position.x + min_x;
2239
2240 cmp::max(padded_line, min_start)
2241 };
2242
2243 let behind_edit_prediction_popover = edit_prediction_popover_origin
2244 .as_ref()
2245 .is_some_and(|edit_prediction_popover_origin| {
2246 (pos_y..pos_y + line_height).contains(&edit_prediction_popover_origin.y)
2247 });
2248 let opacity = if behind_edit_prediction_popover {
2249 0.5
2250 } else {
2251 1.0
2252 };
2253
2254 let mut element = h_flex()
2255 .id(("diagnostic", row.0))
2256 .h(line_height)
2257 .w_full()
2258 .px_1()
2259 .rounded_xs()
2260 .opacity(opacity)
2261 .bg(severity_to_color(&diagnostic_to_render.severity)
2262 .color(cx)
2263 .opacity(0.05))
2264 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
2265 .text_sm()
2266 .font_family(style.text.font().family)
2267 .child(diagnostic_to_render.message.clone())
2268 .into_any();
2269
2270 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
2271
2272 elements.insert(row, element);
2273 }
2274
2275 elements
2276 }
2277
2278 fn layout_inline_code_actions(
2279 &self,
2280 display_point: DisplayPoint,
2281 content_origin: gpui::Point<Pixels>,
2282 scroll_pixel_position: gpui::Point<Pixels>,
2283 line_height: Pixels,
2284 snapshot: &EditorSnapshot,
2285 window: &mut Window,
2286 cx: &mut App,
2287 ) -> Option<AnyElement> {
2288 if !snapshot
2289 .show_code_actions
2290 .unwrap_or(EditorSettings::get_global(cx).inline_code_actions)
2291 {
2292 return None;
2293 }
2294
2295 let icon_size = ui::IconSize::XSmall;
2296 let mut button = self.editor.update(cx, |editor, cx| {
2297 editor.available_code_actions.as_ref()?;
2298 let active = editor
2299 .context_menu
2300 .borrow()
2301 .as_ref()
2302 .and_then(|menu| {
2303 if let crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2304 deployed_from,
2305 ..
2306 }) = menu
2307 {
2308 deployed_from.as_ref()
2309 } else {
2310 None
2311 }
2312 })
2313 .is_some_and(|source| matches!(source, CodeActionSource::Indicator(..)));
2314 Some(editor.render_inline_code_actions(icon_size, display_point.row(), active, cx))
2315 })?;
2316
2317 let buffer_point = display_point.to_point(&snapshot.display_snapshot);
2318
2319 // do not show code action for folded line
2320 if snapshot.is_line_folded(MultiBufferRow(buffer_point.row)) {
2321 return None;
2322 }
2323
2324 // do not show code action for blank line with cursor
2325 let line_indent = snapshot
2326 .display_snapshot
2327 .buffer_snapshot
2328 .line_indent_for_row(MultiBufferRow(buffer_point.row));
2329 if line_indent.is_line_blank() {
2330 return None;
2331 }
2332
2333 const INLINE_SLOT_CHAR_LIMIT: u32 = 4;
2334 const MAX_ALTERNATE_DISTANCE: u32 = 8;
2335
2336 let excerpt_id = snapshot
2337 .display_snapshot
2338 .buffer_snapshot
2339 .excerpt_containing(buffer_point..buffer_point)
2340 .map(|excerpt| excerpt.id());
2341
2342 let is_valid_row = |row_candidate: u32| -> bool {
2343 // move to other row if folded row
2344 if snapshot.is_line_folded(MultiBufferRow(row_candidate)) {
2345 return false;
2346 }
2347 if buffer_point.row == row_candidate {
2348 // move to other row if cursor is in slot
2349 if buffer_point.column < INLINE_SLOT_CHAR_LIMIT {
2350 return false;
2351 }
2352 } else {
2353 let candidate_point = MultiBufferPoint {
2354 row: row_candidate,
2355 column: 0,
2356 };
2357 let candidate_excerpt_id = snapshot
2358 .display_snapshot
2359 .buffer_snapshot
2360 .excerpt_containing(candidate_point..candidate_point)
2361 .map(|excerpt| excerpt.id());
2362 // move to other row if different excerpt
2363 if excerpt_id != candidate_excerpt_id {
2364 return false;
2365 }
2366 }
2367 let line_indent = snapshot
2368 .display_snapshot
2369 .buffer_snapshot
2370 .line_indent_for_row(MultiBufferRow(row_candidate));
2371 // use this row if it's blank
2372 if line_indent.is_line_blank() {
2373 true
2374 } else {
2375 // use this row if code starts after slot
2376 let indent_size = snapshot
2377 .display_snapshot
2378 .buffer_snapshot
2379 .indent_size_for_line(MultiBufferRow(row_candidate));
2380 indent_size.len >= INLINE_SLOT_CHAR_LIMIT
2381 }
2382 };
2383
2384 let new_buffer_row = if is_valid_row(buffer_point.row) {
2385 Some(buffer_point.row)
2386 } else {
2387 let max_row = snapshot.display_snapshot.buffer_snapshot.max_point().row;
2388 (1..=MAX_ALTERNATE_DISTANCE).find_map(|offset| {
2389 let row_above = buffer_point.row.saturating_sub(offset);
2390 let row_below = buffer_point.row + offset;
2391 if row_above != buffer_point.row && is_valid_row(row_above) {
2392 Some(row_above)
2393 } else if row_below <= max_row && is_valid_row(row_below) {
2394 Some(row_below)
2395 } else {
2396 None
2397 }
2398 })
2399 }?;
2400
2401 let new_display_row = snapshot
2402 .display_snapshot
2403 .point_to_display_point(
2404 Point {
2405 row: new_buffer_row,
2406 column: buffer_point.column,
2407 },
2408 text::Bias::Left,
2409 )
2410 .row();
2411
2412 let start_y = content_origin.y
2413 + ((new_display_row.as_f32() - (scroll_pixel_position.y / line_height)) * line_height)
2414 + (line_height / 2.0)
2415 - (icon_size.square(window, cx) / 2.);
2416 let start_x = content_origin.x - scroll_pixel_position.x + (window.rem_size() * 0.1);
2417
2418 let absolute_offset = gpui::point(start_x, start_y);
2419 button.layout_as_root(gpui::AvailableSpace::min_size(), window, cx);
2420 button.prepaint_as_root(
2421 absolute_offset,
2422 gpui::AvailableSpace::min_size(),
2423 window,
2424 cx,
2425 );
2426 Some(button)
2427 }
2428
2429 fn layout_inline_blame(
2430 &self,
2431 display_row: DisplayRow,
2432 row_info: &RowInfo,
2433 line_layout: &LineWithInvisibles,
2434 crease_trailer: Option<&CreaseTrailerLayout>,
2435 em_width: Pixels,
2436 content_origin: gpui::Point<Pixels>,
2437 scroll_pixel_position: gpui::Point<Pixels>,
2438 line_height: Pixels,
2439 text_hitbox: &Hitbox,
2440 window: &mut Window,
2441 cx: &mut App,
2442 ) -> Option<InlineBlameLayout> {
2443 if !self
2444 .editor
2445 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
2446 {
2447 return None;
2448 }
2449
2450 let editor = self.editor.read(cx);
2451 let blame = editor.blame.clone()?;
2452 let padding = {
2453 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
2454
2455 let mut padding = ProjectSettings::get_global(cx).git.inline_blame.padding as f32;
2456
2457 if let Some(edit_prediction) = editor.active_edit_prediction.as_ref()
2458 && let EditPrediction::Edit {
2459 display_mode: EditDisplayMode::TabAccept,
2460 ..
2461 } = &edit_prediction.completion
2462 {
2463 padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS
2464 }
2465
2466 padding * em_width
2467 };
2468
2469 let (buffer_id, entry) = blame
2470 .update(cx, |blame, cx| {
2471 blame.blame_for_rows(&[*row_info], cx).next()
2472 })
2473 .flatten()?;
2474
2475 let mut element = render_inline_blame_entry(entry.clone(), &self.style, cx)?;
2476
2477 let start_y = content_origin.y
2478 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
2479
2480 let start_x = {
2481 let line_end = if let Some(crease_trailer) = crease_trailer {
2482 crease_trailer.bounds.right()
2483 } else {
2484 content_origin.x - scroll_pixel_position.x + line_layout.width
2485 };
2486
2487 let padded_line_end = line_end + padding;
2488
2489 let min_column_in_pixels = self.column_pixels(
2490 ProjectSettings::get_global(cx).git.inline_blame.min_column as usize,
2491 window,
2492 );
2493 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
2494
2495 cmp::max(padded_line_end, min_start)
2496 };
2497
2498 let absolute_offset = point(start_x, start_y);
2499 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2500 let bounds = Bounds::new(absolute_offset, size);
2501
2502 self.layout_blame_entry_popover(
2503 entry.clone(),
2504 blame,
2505 line_height,
2506 text_hitbox,
2507 row_info.buffer_id?,
2508 window,
2509 cx,
2510 );
2511
2512 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
2513
2514 Some(InlineBlameLayout {
2515 element,
2516 bounds,
2517 buffer_id,
2518 entry,
2519 })
2520 }
2521
2522 fn layout_blame_entry_popover(
2523 &self,
2524 blame_entry: BlameEntry,
2525 blame: Entity<GitBlame>,
2526 line_height: Pixels,
2527 text_hitbox: &Hitbox,
2528 buffer: BufferId,
2529 window: &mut Window,
2530 cx: &mut App,
2531 ) {
2532 let Some((popover_state, target_point)) = self.editor.read_with(cx, |editor, _| {
2533 editor
2534 .inline_blame_popover
2535 .as_ref()
2536 .map(|state| (state.popover_state.clone(), state.position))
2537 }) else {
2538 return;
2539 };
2540
2541 let workspace = self
2542 .editor
2543 .read_with(cx, |editor, _| editor.workspace().map(|w| w.downgrade()));
2544
2545 let maybe_element = workspace.and_then(|workspace| {
2546 render_blame_entry_popover(
2547 blame_entry,
2548 popover_state.scroll_handle,
2549 popover_state.commit_message,
2550 popover_state.markdown,
2551 workspace,
2552 &blame,
2553 buffer,
2554 window,
2555 cx,
2556 )
2557 });
2558
2559 if let Some(mut element) = maybe_element {
2560 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2561 let overall_height = size.height + HOVER_POPOVER_GAP;
2562 let popover_origin = if target_point.y > overall_height {
2563 point(target_point.x, target_point.y - size.height)
2564 } else {
2565 point(
2566 target_point.x,
2567 target_point.y + line_height + HOVER_POPOVER_GAP,
2568 )
2569 };
2570
2571 let horizontal_offset = (text_hitbox.top_right().x
2572 - POPOVER_RIGHT_OFFSET
2573 - (popover_origin.x + size.width))
2574 .min(Pixels::ZERO);
2575
2576 let origin = point(popover_origin.x + horizontal_offset, popover_origin.y);
2577 let popover_bounds = Bounds::new(origin, size);
2578
2579 self.editor.update(cx, |editor, _| {
2580 if let Some(state) = &mut editor.inline_blame_popover {
2581 state.popover_bounds = Some(popover_bounds);
2582 }
2583 });
2584
2585 window.defer_draw(element, origin, 2);
2586 }
2587 }
2588
2589 fn layout_blame_entries(
2590 &self,
2591 buffer_rows: &[RowInfo],
2592 em_width: Pixels,
2593 scroll_position: gpui::Point<f32>,
2594 line_height: Pixels,
2595 gutter_hitbox: &Hitbox,
2596 max_width: Option<Pixels>,
2597 window: &mut Window,
2598 cx: &mut App,
2599 ) -> Option<Vec<AnyElement>> {
2600 if !self
2601 .editor
2602 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
2603 {
2604 return None;
2605 }
2606
2607 let blame = self.editor.read(cx).blame.clone()?;
2608 let workspace = self.editor.read(cx).workspace()?;
2609 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
2610 blame.blame_for_rows(buffer_rows, cx).collect()
2611 });
2612
2613 let width = if let Some(max_width) = max_width {
2614 AvailableSpace::Definite(max_width)
2615 } else {
2616 AvailableSpace::MaxContent
2617 };
2618 let scroll_top = scroll_position.y * line_height;
2619 let start_x = em_width;
2620
2621 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
2622 let blame_renderer = cx.global::<GlobalBlameRenderer>().0.clone();
2623
2624 let shaped_lines = blamed_rows
2625 .into_iter()
2626 .enumerate()
2627 .flat_map(|(ix, blame_entry)| {
2628 let (buffer_id, blame_entry) = blame_entry?;
2629 let mut element = render_blame_entry(
2630 ix,
2631 &blame,
2632 blame_entry,
2633 &self.style,
2634 &mut last_used_color,
2635 self.editor.clone(),
2636 workspace.clone(),
2637 buffer_id,
2638 blame_renderer.clone(),
2639 cx,
2640 )?;
2641
2642 let start_y = ix as f32 * line_height - (scroll_top % line_height);
2643 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
2644
2645 element.prepaint_as_root(
2646 absolute_offset,
2647 size(width, AvailableSpace::MinContent),
2648 window,
2649 cx,
2650 );
2651
2652 Some(element)
2653 })
2654 .collect();
2655
2656 Some(shaped_lines)
2657 }
2658
2659 fn layout_indent_guides(
2660 &self,
2661 content_origin: gpui::Point<Pixels>,
2662 text_origin: gpui::Point<Pixels>,
2663 visible_buffer_range: Range<MultiBufferRow>,
2664 scroll_pixel_position: gpui::Point<Pixels>,
2665 line_height: Pixels,
2666 snapshot: &DisplaySnapshot,
2667 window: &mut Window,
2668 cx: &mut App,
2669 ) -> Option<Vec<IndentGuideLayout>> {
2670 let indent_guides = self.editor.update(cx, |editor, cx| {
2671 editor.indent_guides(visible_buffer_range, snapshot, cx)
2672 })?;
2673
2674 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
2675 editor
2676 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
2677 .unwrap_or_default()
2678 });
2679
2680 Some(
2681 indent_guides
2682 .into_iter()
2683 .enumerate()
2684 .filter_map(|(i, indent_guide)| {
2685 let single_indent_width =
2686 self.column_pixels(indent_guide.tab_size as usize, window);
2687 let total_width = single_indent_width * indent_guide.depth as f32;
2688 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
2689 if start_x >= text_origin.x {
2690 let (offset_y, length) = Self::calculate_indent_guide_bounds(
2691 indent_guide.start_row..indent_guide.end_row,
2692 line_height,
2693 snapshot,
2694 );
2695
2696 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
2697
2698 Some(IndentGuideLayout {
2699 origin: point(start_x, start_y),
2700 length,
2701 single_indent_width,
2702 depth: indent_guide.depth,
2703 active: active_indent_guide_indices.contains(&i),
2704 settings: indent_guide.settings,
2705 })
2706 } else {
2707 None
2708 }
2709 })
2710 .collect(),
2711 )
2712 }
2713
2714 fn layout_wrap_guides(
2715 &self,
2716 em_advance: Pixels,
2717 scroll_position: gpui::Point<f32>,
2718 content_origin: gpui::Point<Pixels>,
2719 scrollbar_layout: Option<&EditorScrollbars>,
2720 vertical_scrollbar_width: Pixels,
2721 hitbox: &Hitbox,
2722 window: &Window,
2723 cx: &App,
2724 ) -> SmallVec<[(Pixels, bool); 2]> {
2725 let scroll_left = scroll_position.x * em_advance;
2726 let content_origin = content_origin.x;
2727 let horizontal_offset = content_origin - scroll_left;
2728 let vertical_scrollbar_width = scrollbar_layout
2729 .and_then(|layout| layout.visible.then_some(vertical_scrollbar_width))
2730 .unwrap_or_default();
2731
2732 self.editor
2733 .read(cx)
2734 .wrap_guides(cx)
2735 .into_iter()
2736 .flat_map(|(guide, active)| {
2737 let wrap_position = self.column_pixels(guide, window);
2738 let wrap_guide_x = wrap_position + horizontal_offset;
2739 let display_wrap_guide = wrap_guide_x >= content_origin
2740 && wrap_guide_x <= hitbox.bounds.right() - vertical_scrollbar_width;
2741
2742 display_wrap_guide.then_some((wrap_guide_x, active))
2743 })
2744 .collect()
2745 }
2746
2747 fn calculate_indent_guide_bounds(
2748 row_range: Range<MultiBufferRow>,
2749 line_height: Pixels,
2750 snapshot: &DisplaySnapshot,
2751 ) -> (gpui::Pixels, gpui::Pixels) {
2752 let start_point = Point::new(row_range.start.0, 0);
2753 let end_point = Point::new(row_range.end.0, 0);
2754
2755 let row_range = start_point.to_display_point(snapshot).row()
2756 ..end_point.to_display_point(snapshot).row();
2757
2758 let mut prev_line = start_point;
2759 prev_line.row = prev_line.row.saturating_sub(1);
2760 let prev_line = prev_line.to_display_point(snapshot).row();
2761
2762 let mut cons_line = end_point;
2763 cons_line.row += 1;
2764 let cons_line = cons_line.to_display_point(snapshot).row();
2765
2766 let mut offset_y = row_range.start.0 as f32 * line_height;
2767 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
2768
2769 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
2770 if row_range.end == cons_line {
2771 length += line_height;
2772 }
2773
2774 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
2775 // we want to extend the indent guide to the start of the block.
2776 let mut block_height = 0;
2777 let mut block_offset = 0;
2778 let mut found_excerpt_header = false;
2779 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
2780 if matches!(
2781 block,
2782 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
2783 ) {
2784 found_excerpt_header = true;
2785 break;
2786 }
2787 block_offset += block.height();
2788 block_height += block.height();
2789 }
2790 if !found_excerpt_header {
2791 offset_y -= block_offset as f32 * line_height;
2792 length += block_height as f32 * line_height;
2793 }
2794
2795 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
2796 // we want to ensure that the indent guide stops before the excerpt header.
2797 let mut block_height = 0;
2798 let mut found_excerpt_header = false;
2799 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
2800 if matches!(
2801 block,
2802 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
2803 ) {
2804 found_excerpt_header = true;
2805 }
2806 block_height += block.height();
2807 }
2808 if found_excerpt_header {
2809 length -= block_height as f32 * line_height;
2810 }
2811
2812 (offset_y, length)
2813 }
2814
2815 fn layout_breakpoints(
2816 &self,
2817 line_height: Pixels,
2818 range: Range<DisplayRow>,
2819 scroll_pixel_position: gpui::Point<Pixels>,
2820 gutter_dimensions: &GutterDimensions,
2821 gutter_hitbox: &Hitbox,
2822 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2823 snapshot: &EditorSnapshot,
2824 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
2825 row_infos: &[RowInfo],
2826 window: &mut Window,
2827 cx: &mut App,
2828 ) -> Vec<AnyElement> {
2829 self.editor.update(cx, |editor, cx| {
2830 breakpoints
2831 .into_iter()
2832 .filter_map(|(display_row, (text_anchor, bp, state))| {
2833 if row_infos
2834 .get((display_row.0.saturating_sub(range.start.0)) as usize)
2835 .is_some_and(|row_info| {
2836 row_info.expand_info.is_some()
2837 || row_info
2838 .diff_status
2839 .is_some_and(|status| status.is_deleted())
2840 })
2841 {
2842 return None;
2843 }
2844
2845 if range.start > display_row || range.end < display_row {
2846 return None;
2847 }
2848
2849 let row =
2850 MultiBufferRow(DisplayPoint::new(display_row, 0).to_point(snapshot).row);
2851 if snapshot.is_line_folded(row) {
2852 return None;
2853 }
2854
2855 let button = editor.render_breakpoint(text_anchor, display_row, &bp, state, cx);
2856
2857 let button = prepaint_gutter_button(
2858 button,
2859 display_row,
2860 line_height,
2861 gutter_dimensions,
2862 scroll_pixel_position,
2863 gutter_hitbox,
2864 display_hunks,
2865 window,
2866 cx,
2867 );
2868 Some(button)
2869 })
2870 .collect_vec()
2871 })
2872 }
2873
2874 #[allow(clippy::too_many_arguments)]
2875 fn layout_run_indicators(
2876 &self,
2877 line_height: Pixels,
2878 range: Range<DisplayRow>,
2879 row_infos: &[RowInfo],
2880 scroll_pixel_position: gpui::Point<Pixels>,
2881 gutter_dimensions: &GutterDimensions,
2882 gutter_hitbox: &Hitbox,
2883 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2884 snapshot: &EditorSnapshot,
2885 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
2886 window: &mut Window,
2887 cx: &mut App,
2888 ) -> Vec<AnyElement> {
2889 self.editor.update(cx, |editor, cx| {
2890 let active_task_indicator_row =
2891 // TODO: add edit button on the right side of each row in the context menu
2892 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2893 deployed_from,
2894 actions,
2895 ..
2896 })) = editor.context_menu.borrow().as_ref()
2897 {
2898 actions
2899 .tasks()
2900 .map(|tasks| tasks.position.to_display_point(snapshot).row())
2901 .or_else(|| match deployed_from {
2902 Some(CodeActionSource::Indicator(row)) => Some(*row),
2903 _ => None,
2904 })
2905 } else {
2906 None
2907 };
2908
2909 let offset_range_start =
2910 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
2911
2912 let offset_range_end =
2913 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
2914
2915 editor
2916 .tasks
2917 .iter()
2918 .filter_map(|(_, tasks)| {
2919 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot);
2920 if multibuffer_point < offset_range_start
2921 || multibuffer_point > offset_range_end
2922 {
2923 return None;
2924 }
2925 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
2926 let buffer_folded = snapshot
2927 .buffer_snapshot
2928 .buffer_line_for_row(multibuffer_row)
2929 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
2930 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
2931 .unwrap_or(false);
2932 if buffer_folded {
2933 return None;
2934 }
2935
2936 if snapshot.is_line_folded(multibuffer_row) {
2937 // Skip folded indicators, unless it's the starting line of a fold.
2938 if multibuffer_row
2939 .0
2940 .checked_sub(1)
2941 .is_some_and(|previous_row| {
2942 snapshot.is_line_folded(MultiBufferRow(previous_row))
2943 })
2944 {
2945 return None;
2946 }
2947 }
2948
2949 let display_row = multibuffer_point.to_display_point(snapshot).row();
2950 if !range.contains(&display_row) {
2951 return None;
2952 }
2953 if row_infos
2954 .get((display_row - range.start).0 as usize)
2955 .is_some_and(|row_info| row_info.expand_info.is_some())
2956 {
2957 return None;
2958 }
2959
2960 let button = editor.render_run_indicator(
2961 &self.style,
2962 Some(display_row) == active_task_indicator_row,
2963 display_row,
2964 breakpoints.remove(&display_row),
2965 cx,
2966 );
2967
2968 let button = prepaint_gutter_button(
2969 button,
2970 display_row,
2971 line_height,
2972 gutter_dimensions,
2973 scroll_pixel_position,
2974 gutter_hitbox,
2975 display_hunks,
2976 window,
2977 cx,
2978 );
2979 Some(button)
2980 })
2981 .collect_vec()
2982 })
2983 }
2984
2985 fn layout_expand_toggles(
2986 &self,
2987 gutter_hitbox: &Hitbox,
2988 gutter_dimensions: GutterDimensions,
2989 em_width: Pixels,
2990 line_height: Pixels,
2991 scroll_position: gpui::Point<f32>,
2992 buffer_rows: &[RowInfo],
2993 window: &mut Window,
2994 cx: &mut App,
2995 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
2996 if self.editor.read(cx).disable_expand_excerpt_buttons {
2997 return vec![];
2998 }
2999
3000 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
3001
3002 let scroll_top = scroll_position.y * line_height;
3003
3004 let max_line_number_length = self
3005 .editor
3006 .read(cx)
3007 .buffer()
3008 .read(cx)
3009 .snapshot(cx)
3010 .widest_line_number()
3011 .ilog10()
3012 + 1;
3013
3014 let git_gutter_width = Self::gutter_strip_width(line_height)
3015 + gutter_dimensions
3016 .git_blame_entries_width
3017 .unwrap_or_default();
3018 let available_width = gutter_dimensions.left_padding - git_gutter_width;
3019
3020 buffer_rows
3021 .iter()
3022 .enumerate()
3023 .map(|(ix, row_info)| {
3024 let ExpandInfo {
3025 excerpt_id,
3026 direction,
3027 } = row_info.expand_info?;
3028
3029 let icon_name = match direction {
3030 ExpandExcerptDirection::Up => IconName::ExpandUp,
3031 ExpandExcerptDirection::Down => IconName::ExpandDown,
3032 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
3033 };
3034
3035 let editor = self.editor.clone();
3036 let is_wide = max_line_number_length
3037 >= EditorSettings::get_global(cx).gutter.min_line_number_digits as u32
3038 && row_info
3039 .buffer_row
3040 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
3041 || gutter_dimensions.right_padding == px(0.);
3042
3043 let width = if is_wide {
3044 available_width - px(2.)
3045 } else {
3046 available_width + em_width - px(2.)
3047 };
3048
3049 let toggle = IconButton::new(("expand", ix), icon_name)
3050 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
3051 .selected_icon_color(Color::Custom(cx.theme().colors().editor_foreground))
3052 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
3053 .width(width)
3054 .on_click(move |_, window, cx| {
3055 editor.update(cx, |editor, cx| {
3056 editor.expand_excerpt(excerpt_id, direction, window, cx);
3057 });
3058 })
3059 .tooltip(Tooltip::for_action_title(
3060 "Expand Excerpt",
3061 &crate::actions::ExpandExcerpts::default(),
3062 ))
3063 .into_any_element();
3064
3065 let position = point(
3066 git_gutter_width + px(1.),
3067 ix as f32 * line_height - (scroll_top % line_height) + px(1.),
3068 );
3069 let origin = gutter_hitbox.origin + position;
3070
3071 Some((toggle, origin))
3072 })
3073 .collect()
3074 }
3075
3076 fn calculate_relative_line_numbers(
3077 &self,
3078 snapshot: &EditorSnapshot,
3079 rows: &Range<DisplayRow>,
3080 relative_to: Option<DisplayRow>,
3081 ) -> HashMap<DisplayRow, DisplayRowDelta> {
3082 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
3083 let Some(relative_to) = relative_to else {
3084 return relative_rows;
3085 };
3086
3087 let start = rows.start.min(relative_to);
3088 let end = rows.end.max(relative_to);
3089
3090 let buffer_rows = snapshot
3091 .row_infos(start)
3092 .take(1 + end.minus(start) as usize)
3093 .collect::<Vec<_>>();
3094
3095 let head_idx = relative_to.minus(start);
3096 let mut delta = 1;
3097 let mut i = head_idx + 1;
3098 while i < buffer_rows.len() as u32 {
3099 if buffer_rows[i as usize].buffer_row.is_some() {
3100 if rows.contains(&DisplayRow(i + start.0)) {
3101 relative_rows.insert(DisplayRow(i + start.0), delta);
3102 }
3103 delta += 1;
3104 }
3105 i += 1;
3106 }
3107 delta = 1;
3108 i = head_idx.min(buffer_rows.len() as u32 - 1);
3109 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
3110 i -= 1;
3111 }
3112
3113 while i > 0 {
3114 i -= 1;
3115 if buffer_rows[i as usize].buffer_row.is_some() {
3116 if rows.contains(&DisplayRow(i + start.0)) {
3117 relative_rows.insert(DisplayRow(i + start.0), delta);
3118 }
3119 delta += 1;
3120 }
3121 }
3122
3123 relative_rows
3124 }
3125
3126 fn layout_line_numbers(
3127 &self,
3128 gutter_hitbox: Option<&Hitbox>,
3129 gutter_dimensions: GutterDimensions,
3130 line_height: Pixels,
3131 scroll_position: gpui::Point<f32>,
3132 rows: Range<DisplayRow>,
3133 buffer_rows: &[RowInfo],
3134 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3135 newest_selection_head: Option<DisplayPoint>,
3136 snapshot: &EditorSnapshot,
3137 window: &mut Window,
3138 cx: &mut App,
3139 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
3140 let include_line_numbers = snapshot
3141 .show_line_numbers
3142 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
3143 if !include_line_numbers {
3144 return Arc::default();
3145 }
3146
3147 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
3148 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
3149 let newest = editor.selections.newest::<Point>(cx);
3150 SelectionLayout::new(
3151 newest,
3152 editor.selections.line_mode,
3153 editor.cursor_shape,
3154 &snapshot.display_snapshot,
3155 true,
3156 true,
3157 None,
3158 )
3159 .head
3160 });
3161 let is_relative = editor.should_use_relative_line_numbers(cx);
3162 (newest_selection_head, is_relative)
3163 });
3164
3165 let relative_to = if is_relative {
3166 Some(newest_selection_head.row())
3167 } else {
3168 None
3169 };
3170 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
3171 let mut line_number = String::new();
3172 let line_numbers = buffer_rows
3173 .iter()
3174 .enumerate()
3175 .flat_map(|(ix, row_info)| {
3176 let display_row = DisplayRow(rows.start.0 + ix as u32);
3177 line_number.clear();
3178 let non_relative_number = row_info.buffer_row? + 1;
3179 let number = relative_rows
3180 .get(&display_row)
3181 .unwrap_or(&non_relative_number);
3182 write!(&mut line_number, "{number}").unwrap();
3183 if row_info
3184 .diff_status
3185 .is_some_and(|status| status.is_deleted())
3186 {
3187 return None;
3188 }
3189
3190 let color = active_rows
3191 .get(&display_row)
3192 .map(|spec| {
3193 if spec.breakpoint {
3194 cx.theme().colors().debugger_accent
3195 } else {
3196 cx.theme().colors().editor_active_line_number
3197 }
3198 })
3199 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
3200 let shaped_line =
3201 self.shape_line_number(SharedString::from(&line_number), color, window);
3202 let scroll_top = scroll_position.y * line_height;
3203 let line_origin = gutter_hitbox.map(|hitbox| {
3204 hitbox.origin
3205 + point(
3206 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
3207 ix as f32 * line_height - (scroll_top % line_height),
3208 )
3209 });
3210
3211 #[cfg(not(test))]
3212 let hitbox = line_origin.map(|line_origin| {
3213 window.insert_hitbox(
3214 Bounds::new(line_origin, size(shaped_line.width, line_height)),
3215 HitboxBehavior::Normal,
3216 )
3217 });
3218 #[cfg(test)]
3219 let hitbox = {
3220 let _ = line_origin;
3221 None
3222 };
3223
3224 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
3225 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
3226 let line_number = LineNumberLayout {
3227 shaped_line,
3228 hitbox,
3229 };
3230 Some((multi_buffer_row, line_number))
3231 })
3232 .collect();
3233 Arc::new(line_numbers)
3234 }
3235
3236 fn layout_crease_toggles(
3237 &self,
3238 rows: Range<DisplayRow>,
3239 row_infos: &[RowInfo],
3240 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3241 snapshot: &EditorSnapshot,
3242 window: &mut Window,
3243 cx: &mut App,
3244 ) -> Vec<Option<AnyElement>> {
3245 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
3246 && snapshot.mode.is_full()
3247 && self.editor.read(cx).is_singleton(cx);
3248 if include_fold_statuses {
3249 row_infos
3250 .iter()
3251 .enumerate()
3252 .map(|(ix, info)| {
3253 if info.expand_info.is_some() {
3254 return None;
3255 }
3256 let row = info.multibuffer_row?;
3257 let display_row = DisplayRow(rows.start.0 + ix as u32);
3258 let active = active_rows.contains_key(&display_row);
3259
3260 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
3261 })
3262 .collect()
3263 } else {
3264 Vec::new()
3265 }
3266 }
3267
3268 fn layout_crease_trailers(
3269 &self,
3270 buffer_rows: impl IntoIterator<Item = RowInfo>,
3271 snapshot: &EditorSnapshot,
3272 window: &mut Window,
3273 cx: &mut App,
3274 ) -> Vec<Option<AnyElement>> {
3275 buffer_rows
3276 .into_iter()
3277 .map(|row_info| {
3278 if row_info.expand_info.is_some() {
3279 return None;
3280 }
3281 if let Some(row) = row_info.multibuffer_row {
3282 snapshot.render_crease_trailer(row, window, cx)
3283 } else {
3284 None
3285 }
3286 })
3287 .collect()
3288 }
3289
3290 fn bg_segments_per_row(
3291 rows: Range<DisplayRow>,
3292 selections: &[(PlayerColor, Vec<SelectionLayout>)],
3293 highlight_ranges: &[(Range<DisplayPoint>, Hsla)],
3294 base_background: Hsla,
3295 ) -> Vec<Vec<(Range<DisplayPoint>, Hsla)>> {
3296 if rows.start >= rows.end {
3297 return Vec::new();
3298 }
3299 if !base_background.is_opaque() {
3300 // We don't actually know what color is behind this editor.
3301 return Vec::new();
3302 }
3303 let highlight_iter = highlight_ranges.iter().cloned();
3304 let selection_iter = selections.iter().flat_map(|(player_color, layouts)| {
3305 let color = player_color.selection;
3306 layouts.iter().filter_map(move |selection_layout| {
3307 if selection_layout.range.start != selection_layout.range.end {
3308 Some((selection_layout.range.clone(), color))
3309 } else {
3310 None
3311 }
3312 })
3313 });
3314 let mut per_row_map = vec![Vec::new(); rows.len()];
3315 for (range, color) in highlight_iter.chain(selection_iter) {
3316 let covered_rows = if range.end.column() == 0 {
3317 cmp::max(range.start.row(), rows.start)..cmp::min(range.end.row(), rows.end)
3318 } else {
3319 cmp::max(range.start.row(), rows.start)
3320 ..cmp::min(range.end.row().next_row(), rows.end)
3321 };
3322 for row in covered_rows.iter_rows() {
3323 let seg_start = if row == range.start.row() {
3324 range.start
3325 } else {
3326 DisplayPoint::new(row, 0)
3327 };
3328 let seg_end = if row == range.end.row() && range.end.column() != 0 {
3329 range.end
3330 } else {
3331 DisplayPoint::new(row, u32::MAX)
3332 };
3333 let ix = row.minus(rows.start) as usize;
3334 debug_assert!(row >= rows.start && row < rows.end);
3335 debug_assert!(ix < per_row_map.len());
3336 per_row_map[ix].push((seg_start..seg_end, color));
3337 }
3338 }
3339 for row_segments in per_row_map.iter_mut() {
3340 if row_segments.is_empty() {
3341 continue;
3342 }
3343 let segments = mem::take(row_segments);
3344 let merged = Self::merge_overlapping_ranges(segments, base_background);
3345 *row_segments = merged;
3346 }
3347 per_row_map
3348 }
3349
3350 /// Merge overlapping ranges by splitting at all range boundaries and blending colors where
3351 /// multiple ranges overlap. The result contains non-overlapping ranges ordered from left to right.
3352 ///
3353 /// Expects `start.row() == end.row()` for each range.
3354 fn merge_overlapping_ranges(
3355 ranges: Vec<(Range<DisplayPoint>, Hsla)>,
3356 base_background: Hsla,
3357 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
3358 struct Boundary {
3359 pos: DisplayPoint,
3360 is_start: bool,
3361 index: usize,
3362 color: Hsla,
3363 }
3364
3365 let mut boundaries: SmallVec<[Boundary; 16]> = SmallVec::with_capacity(ranges.len() * 2);
3366 for (index, (range, color)) in ranges.iter().enumerate() {
3367 debug_assert!(
3368 range.start.row() == range.end.row(),
3369 "expects single-row ranges"
3370 );
3371 if range.start < range.end {
3372 boundaries.push(Boundary {
3373 pos: range.start,
3374 is_start: true,
3375 index,
3376 color: *color,
3377 });
3378 boundaries.push(Boundary {
3379 pos: range.end,
3380 is_start: false,
3381 index,
3382 color: *color,
3383 });
3384 }
3385 }
3386
3387 if boundaries.is_empty() {
3388 return Vec::new();
3389 }
3390
3391 boundaries
3392 .sort_unstable_by(|a, b| a.pos.cmp(&b.pos).then_with(|| a.is_start.cmp(&b.is_start)));
3393
3394 let mut processed_ranges: Vec<(Range<DisplayPoint>, Hsla)> = Vec::new();
3395 let mut active_ranges: SmallVec<[(usize, Hsla); 8]> = SmallVec::new();
3396
3397 let mut i = 0;
3398 let mut start_pos = boundaries[0].pos;
3399
3400 let boundaries_len = boundaries.len();
3401 while i < boundaries_len {
3402 let current_boundary_pos = boundaries[i].pos;
3403 if start_pos < current_boundary_pos {
3404 if !active_ranges.is_empty() {
3405 let mut color = base_background;
3406 for &(_, c) in &active_ranges {
3407 color = Hsla::blend(color, c);
3408 }
3409 if let Some((last_range, last_color)) = processed_ranges.last_mut() {
3410 if *last_color == color && last_range.end == start_pos {
3411 last_range.end = current_boundary_pos;
3412 } else {
3413 processed_ranges.push((start_pos..current_boundary_pos, color));
3414 }
3415 } else {
3416 processed_ranges.push((start_pos..current_boundary_pos, color));
3417 }
3418 }
3419 }
3420 while i < boundaries_len && boundaries[i].pos == current_boundary_pos {
3421 let active_range = &boundaries[i];
3422 if active_range.is_start {
3423 let idx = active_range.index;
3424 let pos = active_ranges
3425 .binary_search_by_key(&idx, |(i, _)| *i)
3426 .unwrap_or_else(|p| p);
3427 active_ranges.insert(pos, (idx, active_range.color));
3428 } else {
3429 let idx = active_range.index;
3430 if let Ok(pos) = active_ranges.binary_search_by_key(&idx, |(i, _)| *i) {
3431 active_ranges.remove(pos);
3432 }
3433 }
3434 i += 1;
3435 }
3436 start_pos = current_boundary_pos;
3437 }
3438
3439 processed_ranges
3440 }
3441
3442 fn layout_lines(
3443 rows: Range<DisplayRow>,
3444 snapshot: &EditorSnapshot,
3445 style: &EditorStyle,
3446 editor_width: Pixels,
3447 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3448 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
3449 window: &mut Window,
3450 cx: &mut App,
3451 ) -> Vec<LineWithInvisibles> {
3452 if rows.start >= rows.end {
3453 return Vec::new();
3454 }
3455
3456 // Show the placeholder when the editor is empty
3457 if snapshot.is_empty() {
3458 let font_size = style.text.font_size.to_pixels(window.rem_size());
3459 let placeholder_color = cx.theme().colors().text_placeholder;
3460 let placeholder_text = snapshot.placeholder_text();
3461
3462 let placeholder_lines = placeholder_text
3463 .as_ref()
3464 .map_or(Vec::new(), |text| text.split('\n').collect::<Vec<_>>());
3465
3466 let placeholder_line_count = placeholder_lines.len();
3467
3468 placeholder_lines
3469 .into_iter()
3470 .skip(rows.start.0 as usize)
3471 .chain(iter::repeat(""))
3472 .take(cmp::max(rows.len(), placeholder_line_count))
3473 .map(move |line| {
3474 let run = TextRun {
3475 len: line.len(),
3476 font: style.text.font(),
3477 color: placeholder_color,
3478 background_color: None,
3479 underline: None,
3480 strikethrough: None,
3481 };
3482 let line = window.text_system().shape_line(
3483 line.to_string().into(),
3484 font_size,
3485 &[run],
3486 None,
3487 );
3488 LineWithInvisibles {
3489 width: line.width,
3490 len: line.len,
3491 fragments: smallvec![LineFragment::Text(line)],
3492 invisibles: Vec::new(),
3493 font_size,
3494 }
3495 })
3496 .collect()
3497 } else {
3498 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
3499 LineWithInvisibles::from_chunks(
3500 chunks,
3501 style,
3502 MAX_LINE_LEN,
3503 rows.len(),
3504 &snapshot.mode,
3505 editor_width,
3506 is_row_soft_wrapped,
3507 bg_segments_per_row,
3508 window,
3509 cx,
3510 )
3511 }
3512 }
3513
3514 fn prepaint_lines(
3515 &self,
3516 start_row: DisplayRow,
3517 line_layouts: &mut [LineWithInvisibles],
3518 line_height: Pixels,
3519 scroll_pixel_position: gpui::Point<Pixels>,
3520 content_origin: gpui::Point<Pixels>,
3521 window: &mut Window,
3522 cx: &mut App,
3523 ) -> SmallVec<[AnyElement; 1]> {
3524 let mut line_elements = SmallVec::new();
3525 for (ix, line) in line_layouts.iter_mut().enumerate() {
3526 let row = start_row + DisplayRow(ix as u32);
3527 line.prepaint(
3528 line_height,
3529 scroll_pixel_position,
3530 row,
3531 content_origin,
3532 &mut line_elements,
3533 window,
3534 cx,
3535 );
3536 }
3537 line_elements
3538 }
3539
3540 fn render_block(
3541 &self,
3542 block: &Block,
3543 available_width: AvailableSpace,
3544 block_id: BlockId,
3545 block_row_start: DisplayRow,
3546 snapshot: &EditorSnapshot,
3547 text_x: Pixels,
3548 rows: &Range<DisplayRow>,
3549 line_layouts: &[LineWithInvisibles],
3550 editor_margins: &EditorMargins,
3551 line_height: Pixels,
3552 em_width: Pixels,
3553 text_hitbox: &Hitbox,
3554 editor_width: Pixels,
3555 scroll_width: &mut Pixels,
3556 resized_blocks: &mut HashMap<CustomBlockId, u32>,
3557 row_block_types: &mut HashMap<DisplayRow, bool>,
3558 selections: &[Selection<Point>],
3559 selected_buffer_ids: &Vec<BufferId>,
3560 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3561 sticky_header_excerpt_id: Option<ExcerptId>,
3562 window: &mut Window,
3563 cx: &mut App,
3564 ) -> Option<(AnyElement, Size<Pixels>, DisplayRow, Pixels)> {
3565 let mut x_position = None;
3566 let mut element = match block {
3567 Block::Custom(custom) => {
3568 let block_start = custom.start().to_point(&snapshot.buffer_snapshot);
3569 let block_end = custom.end().to_point(&snapshot.buffer_snapshot);
3570 if block.place_near() && snapshot.is_line_folded(MultiBufferRow(block_start.row)) {
3571 return None;
3572 }
3573 let align_to = block_start.to_display_point(snapshot);
3574 let x_and_width = |layout: &LineWithInvisibles| {
3575 Some((
3576 text_x + layout.x_for_index(align_to.column() as usize),
3577 text_x + layout.width,
3578 ))
3579 };
3580 let line_ix = align_to.row().0.checked_sub(rows.start.0);
3581 x_position =
3582 if let Some(layout) = line_ix.and_then(|ix| line_layouts.get(ix as usize)) {
3583 x_and_width(layout)
3584 } else {
3585 x_and_width(&layout_line(
3586 align_to.row(),
3587 snapshot,
3588 &self.style,
3589 editor_width,
3590 is_row_soft_wrapped,
3591 window,
3592 cx,
3593 ))
3594 };
3595
3596 let anchor_x = x_position.unwrap().0;
3597
3598 let selected = selections
3599 .binary_search_by(|selection| {
3600 if selection.end <= block_start {
3601 Ordering::Less
3602 } else if selection.start >= block_end {
3603 Ordering::Greater
3604 } else {
3605 Ordering::Equal
3606 }
3607 })
3608 .is_ok();
3609
3610 div()
3611 .size_full()
3612 .child(custom.render(&mut BlockContext {
3613 window,
3614 app: cx,
3615 anchor_x,
3616 margins: editor_margins,
3617 line_height,
3618 em_width,
3619 block_id,
3620 selected,
3621 max_width: text_hitbox.size.width.max(*scroll_width),
3622 editor_style: &self.style,
3623 }))
3624 .into_any()
3625 }
3626
3627 Block::FoldedBuffer {
3628 first_excerpt,
3629 height,
3630 ..
3631 } => {
3632 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
3633 let result = v_flex().id(block_id).w_full().pr(editor_margins.right);
3634
3635 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
3636 result
3637 .child(self.render_buffer_header(
3638 first_excerpt,
3639 true,
3640 selected,
3641 false,
3642 jump_data,
3643 window,
3644 cx,
3645 ))
3646 .into_any_element()
3647 }
3648
3649 Block::ExcerptBoundary { .. } => {
3650 let color = cx.theme().colors().clone();
3651 let mut result = v_flex().id(block_id).w_full();
3652
3653 result = result.child(
3654 h_flex().relative().child(
3655 div()
3656 .top(line_height / 2.)
3657 .absolute()
3658 .w_full()
3659 .h_px()
3660 .bg(color.border_variant),
3661 ),
3662 );
3663
3664 result.into_any()
3665 }
3666
3667 Block::BufferHeader { excerpt, height } => {
3668 let mut result = v_flex().id(block_id).w_full();
3669
3670 let jump_data = header_jump_data(snapshot, block_row_start, *height, excerpt);
3671
3672 if sticky_header_excerpt_id != Some(excerpt.id) {
3673 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3674
3675 result = result.child(div().pr(editor_margins.right).child(
3676 self.render_buffer_header(
3677 excerpt, false, selected, false, jump_data, window, cx,
3678 ),
3679 ));
3680 } else {
3681 result =
3682 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
3683 }
3684
3685 result.into_any()
3686 }
3687 };
3688
3689 // Discover the element's content height, then round up to the nearest multiple of line height.
3690 let preliminary_size = element.layout_as_root(
3691 size(available_width, AvailableSpace::MinContent),
3692 window,
3693 cx,
3694 );
3695 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
3696 let final_size = if preliminary_size.height == quantized_height {
3697 preliminary_size
3698 } else {
3699 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
3700 };
3701 let mut element_height_in_lines = ((final_size.height / line_height).ceil() as u32).max(1);
3702
3703 let mut row = block_row_start;
3704 let mut x_offset = px(0.);
3705 let mut is_block = true;
3706
3707 if let BlockId::Custom(custom_block_id) = block_id
3708 && block.has_height()
3709 {
3710 if block.place_near()
3711 && let Some((x_target, line_width)) = x_position
3712 {
3713 let margin = em_width * 2;
3714 if line_width + final_size.width + margin
3715 < editor_width + editor_margins.gutter.full_width()
3716 && !row_block_types.contains_key(&(row - 1))
3717 && element_height_in_lines == 1
3718 {
3719 x_offset = line_width + margin;
3720 row = row - 1;
3721 is_block = false;
3722 element_height_in_lines = 0;
3723 row_block_types.insert(row, is_block);
3724 } else {
3725 let max_offset =
3726 editor_width + editor_margins.gutter.full_width() - final_size.width;
3727 let min_offset = (x_target + em_width - final_size.width)
3728 .max(editor_margins.gutter.full_width());
3729 x_offset = x_target.min(max_offset).max(min_offset);
3730 }
3731 };
3732 if element_height_in_lines != block.height() {
3733 resized_blocks.insert(custom_block_id, element_height_in_lines);
3734 }
3735 }
3736 for i in 0..element_height_in_lines {
3737 row_block_types.insert(row + i, is_block);
3738 }
3739
3740 Some((element, final_size, row, x_offset))
3741 }
3742
3743 fn render_buffer_header(
3744 &self,
3745 for_excerpt: &ExcerptInfo,
3746 is_folded: bool,
3747 is_selected: bool,
3748 is_sticky: bool,
3749 jump_data: JumpData,
3750 window: &mut Window,
3751 cx: &mut App,
3752 ) -> impl IntoElement {
3753 let editor = self.editor.read(cx);
3754 let multi_buffer = editor.buffer.read(cx);
3755 let file_status = multi_buffer
3756 .all_diff_hunks_expanded()
3757 .then(|| {
3758 editor
3759 .project
3760 .as_ref()?
3761 .read(cx)
3762 .status_for_buffer_id(for_excerpt.buffer_id, cx)
3763 })
3764 .flatten();
3765 let indicator = multi_buffer
3766 .buffer(for_excerpt.buffer_id)
3767 .and_then(|buffer| {
3768 let buffer = buffer.read(cx);
3769 let indicator_color = match (buffer.has_conflict(), buffer.is_dirty()) {
3770 (true, _) => Some(Color::Warning),
3771 (_, true) => Some(Color::Accent),
3772 (false, false) => None,
3773 };
3774 indicator_color.map(|indicator_color| Indicator::dot().color(indicator_color))
3775 });
3776
3777 let include_root = editor
3778 .project
3779 .as_ref()
3780 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
3781 .unwrap_or_default();
3782 let file = for_excerpt.buffer.file();
3783 let can_open_excerpts = Editor::can_open_excerpts_in_file(file);
3784 let path_style = file.map(|file| file.path_style(cx));
3785 let relative_path = for_excerpt.buffer.resolve_file_path(cx, include_root);
3786 let filename = relative_path
3787 .as_ref()
3788 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
3789 let parent_path = relative_path.as_ref().and_then(|path| {
3790 Some(path.parent()?.to_string_lossy().to_string() + path_style?.separator())
3791 });
3792 let focus_handle = editor.focus_handle(cx);
3793 let colors = cx.theme().colors();
3794
3795 let header = div()
3796 .p_1()
3797 .w_full()
3798 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
3799 .child(
3800 h_flex()
3801 .size_full()
3802 .gap_2()
3803 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
3804 .pl_0p5()
3805 .pr_5()
3806 .rounded_sm()
3807 .when(is_sticky, |el| el.shadow_md())
3808 .border_1()
3809 .map(|div| {
3810 let border_color = if is_selected
3811 && is_folded
3812 && focus_handle.contains_focused(window, cx)
3813 {
3814 colors.border_focused
3815 } else {
3816 colors.border
3817 };
3818 div.border_color(border_color)
3819 })
3820 .bg(colors.editor_subheader_background)
3821 .hover(|style| style.bg(colors.element_hover))
3822 .map(|header| {
3823 let editor = self.editor.clone();
3824 let buffer_id = for_excerpt.buffer_id;
3825 let toggle_chevron_icon =
3826 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
3827 header.child(
3828 div()
3829 .hover(|style| style.bg(colors.element_selected))
3830 .rounded_xs()
3831 .child(
3832 ButtonLike::new("toggle-buffer-fold")
3833 .style(ui::ButtonStyle::Transparent)
3834 .height(px(28.).into())
3835 .width(px(28.))
3836 .children(toggle_chevron_icon)
3837 .tooltip({
3838 let focus_handle = focus_handle.clone();
3839 move |window, cx| {
3840 Tooltip::with_meta_in(
3841 "Toggle Excerpt Fold",
3842 Some(&ToggleFold),
3843 if cfg!(target_os = "macos") {
3844 "Option+click to toggle all"
3845 } else {
3846 "Alt+click to toggle all"
3847 },
3848 &focus_handle,
3849 window,
3850 cx,
3851 )
3852 }
3853 })
3854 .on_click(move |event, window, cx| {
3855 if event.modifiers().alt {
3856 // Alt+click toggles all buffers
3857 editor.update(cx, |editor, cx| {
3858 editor.toggle_fold_all(
3859 &ToggleFoldAll,
3860 window,
3861 cx,
3862 );
3863 });
3864 } else {
3865 // Regular click toggles single buffer
3866 if is_folded {
3867 editor.update(cx, |editor, cx| {
3868 editor.unfold_buffer(buffer_id, cx);
3869 });
3870 } else {
3871 editor.update(cx, |editor, cx| {
3872 editor.fold_buffer(buffer_id, cx);
3873 });
3874 }
3875 }
3876 }),
3877 ),
3878 )
3879 })
3880 .children(
3881 editor
3882 .addons
3883 .values()
3884 .filter_map(|addon| {
3885 addon.render_buffer_header_controls(for_excerpt, window, cx)
3886 })
3887 .take(1),
3888 )
3889 .child(
3890 h_flex()
3891 .size(Pixels(12.0))
3892 .justify_center()
3893 .children(indicator),
3894 )
3895 .child(
3896 h_flex()
3897 .cursor_pointer()
3898 .id("path header block")
3899 .size_full()
3900 .justify_between()
3901 .overflow_hidden()
3902 .child(
3903 h_flex()
3904 .gap_2()
3905 .map(|path_header| {
3906 let filename = filename
3907 .map(SharedString::from)
3908 .unwrap_or_else(|| "untitled".into());
3909
3910 path_header
3911 .when(ItemSettings::get_global(cx).file_icons, |el| {
3912 let path = path::Path::new(filename.as_str());
3913 let icon = FileIcons::get_icon(path, cx)
3914 .unwrap_or_default();
3915 let icon =
3916 Icon::from_path(icon).color(Color::Muted);
3917 el.child(icon)
3918 })
3919 .child(Label::new(filename).single_line().when_some(
3920 file_status,
3921 |el, status| {
3922 el.color(if status.is_conflicted() {
3923 Color::Conflict
3924 } else if status.is_modified() {
3925 Color::Modified
3926 } else if status.is_deleted() {
3927 Color::Disabled
3928 } else {
3929 Color::Created
3930 })
3931 .when(status.is_deleted(), |el| {
3932 el.strikethrough()
3933 })
3934 },
3935 ))
3936 })
3937 .when_some(parent_path, |then, path| {
3938 then.child(div().child(path).text_color(
3939 if file_status.is_some_and(FileStatus::is_deleted) {
3940 colors.text_disabled
3941 } else {
3942 colors.text_muted
3943 },
3944 ))
3945 }),
3946 )
3947 .when(
3948 can_open_excerpts && is_selected && relative_path.is_some(),
3949 |el| {
3950 el.child(
3951 h_flex()
3952 .id("jump-to-file-button")
3953 .gap_2p5()
3954 .child(Label::new("Jump To File"))
3955 .children(
3956 KeyBinding::for_action_in(
3957 &OpenExcerpts,
3958 &focus_handle,
3959 window,
3960 cx,
3961 )
3962 .map(|binding| binding.into_any_element()),
3963 ),
3964 )
3965 },
3966 )
3967 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
3968 .on_click(window.listener_for(&self.editor, {
3969 move |editor, e: &ClickEvent, window, cx| {
3970 editor.open_excerpts_common(
3971 Some(jump_data.clone()),
3972 e.modifiers().secondary(),
3973 window,
3974 cx,
3975 );
3976 }
3977 })),
3978 ),
3979 );
3980
3981 let file = for_excerpt.buffer.file().cloned();
3982 let editor = self.editor.clone();
3983 right_click_menu("buffer-header-context-menu")
3984 .trigger(move |_, _, _| header)
3985 .menu(move |window, cx| {
3986 let menu_context = focus_handle.clone();
3987 let editor = editor.clone();
3988 let file = file.clone();
3989 ContextMenu::build(window, cx, move |mut menu, window, cx| {
3990 if let Some(file) = file
3991 && let Some(project) = editor.read(cx).project()
3992 && let Some(worktree) =
3993 project.read(cx).worktree_for_id(file.worktree_id(cx), cx)
3994 {
3995 let path_style = file.path_style(cx);
3996 let worktree = worktree.read(cx);
3997 let relative_path = file.path();
3998 let entry_for_path = worktree.entry_for_path(relative_path);
3999 let abs_path = entry_for_path.map(|e| {
4000 e.canonical_path.as_deref().map_or_else(
4001 || worktree.absolutize(relative_path),
4002 Path::to_path_buf,
4003 )
4004 });
4005 let has_relative_path = worktree.root_entry().is_some_and(Entry::is_dir);
4006
4007 let parent_abs_path = abs_path
4008 .as_ref()
4009 .and_then(|abs_path| Some(abs_path.parent()?.to_path_buf()));
4010 let relative_path = has_relative_path
4011 .then_some(relative_path)
4012 .map(ToOwned::to_owned);
4013
4014 let visible_in_project_panel =
4015 relative_path.is_some() && worktree.is_visible();
4016 let reveal_in_project_panel = entry_for_path
4017 .filter(|_| visible_in_project_panel)
4018 .map(|entry| entry.id);
4019 menu = menu
4020 .when_some(abs_path, |menu, abs_path| {
4021 menu.entry(
4022 "Copy Path",
4023 Some(Box::new(zed_actions::workspace::CopyPath)),
4024 window.handler_for(&editor, move |_, _, cx| {
4025 cx.write_to_clipboard(ClipboardItem::new_string(
4026 abs_path.to_string_lossy().to_string(),
4027 ));
4028 }),
4029 )
4030 })
4031 .when_some(relative_path, |menu, relative_path| {
4032 menu.entry(
4033 "Copy Relative Path",
4034 Some(Box::new(zed_actions::workspace::CopyRelativePath)),
4035 window.handler_for(&editor, move |_, _, cx| {
4036 cx.write_to_clipboard(ClipboardItem::new_string(
4037 relative_path.display(path_style).to_string(),
4038 ));
4039 }),
4040 )
4041 })
4042 .when(
4043 reveal_in_project_panel.is_some() || parent_abs_path.is_some(),
4044 |menu| menu.separator(),
4045 )
4046 .when_some(reveal_in_project_panel, |menu, entry_id| {
4047 menu.entry(
4048 "Reveal In Project Panel",
4049 Some(Box::new(RevealInProjectPanel::default())),
4050 window.handler_for(&editor, move |editor, _, cx| {
4051 if let Some(project) = &mut editor.project {
4052 project.update(cx, |_, cx| {
4053 cx.emit(project::Event::RevealInProjectPanel(
4054 entry_id,
4055 ))
4056 });
4057 }
4058 }),
4059 )
4060 })
4061 .when_some(parent_abs_path, |menu, parent_abs_path| {
4062 menu.entry(
4063 "Open in Terminal",
4064 Some(Box::new(OpenInTerminal)),
4065 window.handler_for(&editor, move |_, window, cx| {
4066 window.dispatch_action(
4067 OpenTerminal {
4068 working_directory: parent_abs_path.clone(),
4069 }
4070 .boxed_clone(),
4071 cx,
4072 );
4073 }),
4074 )
4075 });
4076 }
4077
4078 menu.context(menu_context)
4079 })
4080 })
4081 }
4082
4083 fn render_blocks(
4084 &self,
4085 rows: Range<DisplayRow>,
4086 snapshot: &EditorSnapshot,
4087 hitbox: &Hitbox,
4088 text_hitbox: &Hitbox,
4089 editor_width: Pixels,
4090 scroll_width: &mut Pixels,
4091 editor_margins: &EditorMargins,
4092 em_width: Pixels,
4093 text_x: Pixels,
4094 line_height: Pixels,
4095 line_layouts: &mut [LineWithInvisibles],
4096 selections: &[Selection<Point>],
4097 selected_buffer_ids: &Vec<BufferId>,
4098 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4099 sticky_header_excerpt_id: Option<ExcerptId>,
4100 window: &mut Window,
4101 cx: &mut App,
4102 ) -> Result<(Vec<BlockLayout>, HashMap<DisplayRow, bool>), HashMap<CustomBlockId, u32>> {
4103 let (fixed_blocks, non_fixed_blocks) = snapshot
4104 .blocks_in_range(rows.clone())
4105 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
4106
4107 let mut focused_block = self
4108 .editor
4109 .update(cx, |editor, _| editor.take_focused_block());
4110 let mut fixed_block_max_width = Pixels::ZERO;
4111 let mut blocks = Vec::new();
4112 let mut resized_blocks = HashMap::default();
4113 let mut row_block_types = HashMap::default();
4114
4115 for (row, block) in fixed_blocks {
4116 let block_id = block.id();
4117
4118 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4119 focused_block = None;
4120 }
4121
4122 if let Some((element, element_size, row, x_offset)) = self.render_block(
4123 block,
4124 AvailableSpace::MinContent,
4125 block_id,
4126 row,
4127 snapshot,
4128 text_x,
4129 &rows,
4130 line_layouts,
4131 editor_margins,
4132 line_height,
4133 em_width,
4134 text_hitbox,
4135 editor_width,
4136 scroll_width,
4137 &mut resized_blocks,
4138 &mut row_block_types,
4139 selections,
4140 selected_buffer_ids,
4141 is_row_soft_wrapped,
4142 sticky_header_excerpt_id,
4143 window,
4144 cx,
4145 ) {
4146 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
4147 blocks.push(BlockLayout {
4148 id: block_id,
4149 x_offset,
4150 row: Some(row),
4151 element,
4152 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
4153 style: BlockStyle::Fixed,
4154 overlaps_gutter: true,
4155 is_buffer_header: block.is_buffer_header(),
4156 });
4157 }
4158 }
4159
4160 for (row, block) in non_fixed_blocks {
4161 let style = block.style();
4162 let width = match (style, block.place_near()) {
4163 (_, true) => AvailableSpace::MinContent,
4164 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
4165 (BlockStyle::Flex, _) => hitbox
4166 .size
4167 .width
4168 .max(fixed_block_max_width)
4169 .max(editor_margins.gutter.width + *scroll_width)
4170 .into(),
4171 (BlockStyle::Fixed, _) => unreachable!(),
4172 };
4173 let block_id = block.id();
4174
4175 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4176 focused_block = None;
4177 }
4178
4179 if let Some((element, element_size, row, x_offset)) = self.render_block(
4180 block,
4181 width,
4182 block_id,
4183 row,
4184 snapshot,
4185 text_x,
4186 &rows,
4187 line_layouts,
4188 editor_margins,
4189 line_height,
4190 em_width,
4191 text_hitbox,
4192 editor_width,
4193 scroll_width,
4194 &mut resized_blocks,
4195 &mut row_block_types,
4196 selections,
4197 selected_buffer_ids,
4198 is_row_soft_wrapped,
4199 sticky_header_excerpt_id,
4200 window,
4201 cx,
4202 ) {
4203 blocks.push(BlockLayout {
4204 id: block_id,
4205 x_offset,
4206 row: Some(row),
4207 element,
4208 available_space: size(width, element_size.height.into()),
4209 style,
4210 overlaps_gutter: !block.place_near(),
4211 is_buffer_header: block.is_buffer_header(),
4212 });
4213 }
4214 }
4215
4216 if let Some(focused_block) = focused_block
4217 && let Some(focus_handle) = focused_block.focus_handle.upgrade()
4218 && focus_handle.is_focused(window)
4219 && let Some(block) = snapshot.block_for_id(focused_block.id)
4220 {
4221 let style = block.style();
4222 let width = match style {
4223 BlockStyle::Fixed => AvailableSpace::MinContent,
4224 BlockStyle::Flex => AvailableSpace::Definite(
4225 hitbox
4226 .size
4227 .width
4228 .max(fixed_block_max_width)
4229 .max(editor_margins.gutter.width + *scroll_width),
4230 ),
4231 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
4232 };
4233
4234 if let Some((element, element_size, _, x_offset)) = self.render_block(
4235 &block,
4236 width,
4237 focused_block.id,
4238 rows.end,
4239 snapshot,
4240 text_x,
4241 &rows,
4242 line_layouts,
4243 editor_margins,
4244 line_height,
4245 em_width,
4246 text_hitbox,
4247 editor_width,
4248 scroll_width,
4249 &mut resized_blocks,
4250 &mut row_block_types,
4251 selections,
4252 selected_buffer_ids,
4253 is_row_soft_wrapped,
4254 sticky_header_excerpt_id,
4255 window,
4256 cx,
4257 ) {
4258 blocks.push(BlockLayout {
4259 id: block.id(),
4260 x_offset,
4261 row: None,
4262 element,
4263 available_space: size(width, element_size.height.into()),
4264 style,
4265 overlaps_gutter: true,
4266 is_buffer_header: block.is_buffer_header(),
4267 });
4268 }
4269 }
4270
4271 if resized_blocks.is_empty() {
4272 *scroll_width =
4273 (*scroll_width).max(fixed_block_max_width - editor_margins.gutter.width);
4274 Ok((blocks, row_block_types))
4275 } else {
4276 Err(resized_blocks)
4277 }
4278 }
4279
4280 fn layout_blocks(
4281 &self,
4282 blocks: &mut Vec<BlockLayout>,
4283 hitbox: &Hitbox,
4284 line_height: Pixels,
4285 scroll_pixel_position: gpui::Point<Pixels>,
4286 window: &mut Window,
4287 cx: &mut App,
4288 ) {
4289 for block in blocks {
4290 let mut origin = if let Some(row) = block.row {
4291 hitbox.origin
4292 + point(
4293 block.x_offset,
4294 row.as_f32() * line_height - scroll_pixel_position.y,
4295 )
4296 } else {
4297 // Position the block outside the visible area
4298 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
4299 };
4300
4301 if !matches!(block.style, BlockStyle::Sticky) {
4302 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
4303 }
4304
4305 let focus_handle =
4306 block
4307 .element
4308 .prepaint_as_root(origin, block.available_space, window, cx);
4309
4310 if let Some(focus_handle) = focus_handle {
4311 self.editor.update(cx, |editor, _cx| {
4312 editor.set_focused_block(FocusedBlock {
4313 id: block.id,
4314 focus_handle: focus_handle.downgrade(),
4315 });
4316 });
4317 }
4318 }
4319 }
4320
4321 fn layout_sticky_buffer_header(
4322 &self,
4323 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
4324 scroll_position: f32,
4325 line_height: Pixels,
4326 right_margin: Pixels,
4327 snapshot: &EditorSnapshot,
4328 hitbox: &Hitbox,
4329 selected_buffer_ids: &Vec<BufferId>,
4330 blocks: &[BlockLayout],
4331 window: &mut Window,
4332 cx: &mut App,
4333 ) -> AnyElement {
4334 let jump_data = header_jump_data(
4335 snapshot,
4336 DisplayRow(scroll_position as u32),
4337 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
4338 excerpt,
4339 );
4340
4341 let editor_bg_color = cx.theme().colors().editor_background;
4342
4343 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
4344
4345 let available_width = hitbox.bounds.size.width - right_margin;
4346
4347 let mut header = v_flex()
4348 .w_full()
4349 .relative()
4350 .child(
4351 div()
4352 .w(available_width)
4353 .h(FILE_HEADER_HEIGHT as f32 * line_height)
4354 .bg(linear_gradient(
4355 0.,
4356 linear_color_stop(editor_bg_color.opacity(0.), 0.),
4357 linear_color_stop(editor_bg_color, 0.6),
4358 ))
4359 .absolute()
4360 .top_0(),
4361 )
4362 .child(
4363 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
4364 .into_any_element(),
4365 )
4366 .into_any_element();
4367
4368 let mut origin = hitbox.origin;
4369 // Move floating header up to avoid colliding with the next buffer header.
4370 for block in blocks.iter() {
4371 if !block.is_buffer_header {
4372 continue;
4373 }
4374
4375 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position as u32) else {
4376 continue;
4377 };
4378
4379 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
4380 let offset = scroll_position - max_row as f32;
4381
4382 if offset > 0.0 {
4383 origin.y -= offset * line_height;
4384 }
4385 break;
4386 }
4387
4388 let size = size(
4389 AvailableSpace::Definite(available_width),
4390 AvailableSpace::MinContent,
4391 );
4392
4393 header.prepaint_as_root(origin, size, window, cx);
4394
4395 header
4396 }
4397
4398 fn layout_cursor_popovers(
4399 &self,
4400 line_height: Pixels,
4401 text_hitbox: &Hitbox,
4402 content_origin: gpui::Point<Pixels>,
4403 right_margin: Pixels,
4404 start_row: DisplayRow,
4405 scroll_pixel_position: gpui::Point<Pixels>,
4406 line_layouts: &[LineWithInvisibles],
4407 cursor: DisplayPoint,
4408 cursor_point: Point,
4409 style: &EditorStyle,
4410 window: &mut Window,
4411 cx: &mut App,
4412 ) -> Option<ContextMenuLayout> {
4413 let mut min_menu_height = Pixels::ZERO;
4414 let mut max_menu_height = Pixels::ZERO;
4415 let mut height_above_menu = Pixels::ZERO;
4416 let height_below_menu = Pixels::ZERO;
4417 let mut edit_prediction_popover_visible = false;
4418 let mut context_menu_visible = false;
4419 let context_menu_placement;
4420
4421 {
4422 let editor = self.editor.read(cx);
4423 if editor.edit_prediction_visible_in_cursor_popover(editor.has_active_edit_prediction())
4424 {
4425 height_above_menu +=
4426 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
4427 edit_prediction_popover_visible = true;
4428 }
4429
4430 if editor.context_menu_visible()
4431 && let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin()
4432 {
4433 let (min_height_in_lines, max_height_in_lines) = editor
4434 .context_menu_options
4435 .as_ref()
4436 .map_or((3, 12), |options| {
4437 (options.min_entries_visible, options.max_entries_visible)
4438 });
4439
4440 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4441 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4442 context_menu_visible = true;
4443 }
4444 context_menu_placement = editor
4445 .context_menu_options
4446 .as_ref()
4447 .and_then(|options| options.placement.clone());
4448 }
4449
4450 let visible = edit_prediction_popover_visible || context_menu_visible;
4451 if !visible {
4452 return None;
4453 }
4454
4455 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
4456 let target_position = content_origin
4457 + gpui::Point {
4458 x: cmp::max(
4459 px(0.),
4460 cursor_row_layout.x_for_index(cursor.column() as usize)
4461 - scroll_pixel_position.x,
4462 ),
4463 y: cmp::max(
4464 px(0.),
4465 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
4466 ),
4467 };
4468
4469 let viewport_bounds =
4470 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4471 right: -right_margin - MENU_GAP,
4472 ..Default::default()
4473 });
4474
4475 let min_height = height_above_menu + min_menu_height + height_below_menu;
4476 let max_height = height_above_menu + max_menu_height + height_below_menu;
4477 let (laid_out_popovers, y_flipped) = self.layout_popovers_above_or_below_line(
4478 target_position,
4479 line_height,
4480 min_height,
4481 max_height,
4482 context_menu_placement,
4483 text_hitbox,
4484 viewport_bounds,
4485 window,
4486 cx,
4487 |height, max_width_for_stable_x, y_flipped, window, cx| {
4488 // First layout the menu to get its size - others can be at least this wide.
4489 let context_menu = if context_menu_visible {
4490 let menu_height = if y_flipped {
4491 height - height_below_menu
4492 } else {
4493 height - height_above_menu
4494 };
4495 let mut element = self
4496 .render_context_menu(line_height, menu_height, window, cx)
4497 .expect("Visible context menu should always render.");
4498 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4499 Some((CursorPopoverType::CodeContextMenu, element, size))
4500 } else {
4501 None
4502 };
4503 let min_width = context_menu
4504 .as_ref()
4505 .map_or(px(0.), |(_, _, size)| size.width);
4506 let max_width = max_width_for_stable_x.max(
4507 context_menu
4508 .as_ref()
4509 .map_or(px(0.), |(_, _, size)| size.width),
4510 );
4511
4512 let edit_prediction = if edit_prediction_popover_visible {
4513 self.editor.update(cx, move |editor, cx| {
4514 let accept_binding =
4515 editor.accept_edit_prediction_keybind(false, window, cx);
4516 let mut element = editor.render_edit_prediction_cursor_popover(
4517 min_width,
4518 max_width,
4519 cursor_point,
4520 style,
4521 accept_binding.keystroke(),
4522 window,
4523 cx,
4524 )?;
4525 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4526 Some((CursorPopoverType::EditPrediction, element, size))
4527 })
4528 } else {
4529 None
4530 };
4531 vec![edit_prediction, context_menu]
4532 .into_iter()
4533 .flatten()
4534 .collect::<Vec<_>>()
4535 },
4536 )?;
4537
4538 let (menu_ix, (_, menu_bounds)) = laid_out_popovers
4539 .iter()
4540 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))?;
4541 let last_ix = laid_out_popovers.len() - 1;
4542 let menu_is_last = menu_ix == last_ix;
4543 let first_popover_bounds = laid_out_popovers[0].1;
4544 let last_popover_bounds = laid_out_popovers[last_ix].1;
4545
4546 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
4547 // right, and otherwise it goes below or to the right.
4548 let mut target_bounds = Bounds::from_corners(
4549 first_popover_bounds.origin,
4550 last_popover_bounds.bottom_right(),
4551 );
4552 target_bounds.size.width = menu_bounds.size.width;
4553
4554 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
4555 // based on this is preferred for layout stability.
4556 let mut max_target_bounds = target_bounds;
4557 max_target_bounds.size.height = max_height;
4558 if y_flipped {
4559 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
4560 }
4561
4562 // Add spacing around `target_bounds` and `max_target_bounds`.
4563 let mut extend_amount = Edges::all(MENU_GAP);
4564 if y_flipped {
4565 extend_amount.bottom = line_height;
4566 } else {
4567 extend_amount.top = line_height;
4568 }
4569 let target_bounds = target_bounds.extend(extend_amount);
4570 let max_target_bounds = max_target_bounds.extend(extend_amount);
4571
4572 let must_place_above_or_below =
4573 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
4574 laid_out_popovers[menu_ix + 1..]
4575 .iter()
4576 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
4577 } else {
4578 false
4579 };
4580
4581 let aside_bounds = self.layout_context_menu_aside(
4582 y_flipped,
4583 *menu_bounds,
4584 target_bounds,
4585 max_target_bounds,
4586 max_menu_height,
4587 must_place_above_or_below,
4588 text_hitbox,
4589 viewport_bounds,
4590 window,
4591 cx,
4592 );
4593
4594 if let Some(menu_bounds) = laid_out_popovers.iter().find_map(|(popover_type, bounds)| {
4595 if matches!(popover_type, CursorPopoverType::CodeContextMenu) {
4596 Some(*bounds)
4597 } else {
4598 None
4599 }
4600 }) {
4601 let bounds = if let Some(aside_bounds) = aside_bounds {
4602 menu_bounds.union(&aside_bounds)
4603 } else {
4604 menu_bounds
4605 };
4606 return Some(ContextMenuLayout { y_flipped, bounds });
4607 }
4608
4609 None
4610 }
4611
4612 fn layout_gutter_menu(
4613 &self,
4614 line_height: Pixels,
4615 text_hitbox: &Hitbox,
4616 content_origin: gpui::Point<Pixels>,
4617 right_margin: Pixels,
4618 scroll_pixel_position: gpui::Point<Pixels>,
4619 gutter_overshoot: Pixels,
4620 window: &mut Window,
4621 cx: &mut App,
4622 ) {
4623 let editor = self.editor.read(cx);
4624 if !editor.context_menu_visible() {
4625 return;
4626 }
4627 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
4628 editor.context_menu_origin()
4629 else {
4630 return;
4631 };
4632 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
4633 // indicator than just a plain first column of the text field.
4634 let target_position = content_origin
4635 + gpui::Point {
4636 x: -gutter_overshoot,
4637 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
4638 };
4639
4640 let (min_height_in_lines, max_height_in_lines) = editor
4641 .context_menu_options
4642 .as_ref()
4643 .map_or((3, 12), |options| {
4644 (options.min_entries_visible, options.max_entries_visible)
4645 });
4646
4647 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4648 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4649 let viewport_bounds =
4650 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4651 right: -right_margin - MENU_GAP,
4652 ..Default::default()
4653 });
4654 self.layout_popovers_above_or_below_line(
4655 target_position,
4656 line_height,
4657 min_height,
4658 max_height,
4659 editor
4660 .context_menu_options
4661 .as_ref()
4662 .and_then(|options| options.placement.clone()),
4663 text_hitbox,
4664 viewport_bounds,
4665 window,
4666 cx,
4667 move |height, _max_width_for_stable_x, _, window, cx| {
4668 let mut element = self
4669 .render_context_menu(line_height, height, window, cx)
4670 .expect("Visible context menu should always render.");
4671 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4672 vec![(CursorPopoverType::CodeContextMenu, element, size)]
4673 },
4674 );
4675 }
4676
4677 fn layout_popovers_above_or_below_line(
4678 &self,
4679 target_position: gpui::Point<Pixels>,
4680 line_height: Pixels,
4681 min_height: Pixels,
4682 max_height: Pixels,
4683 placement: Option<ContextMenuPlacement>,
4684 text_hitbox: &Hitbox,
4685 viewport_bounds: Bounds<Pixels>,
4686 window: &mut Window,
4687 cx: &mut App,
4688 make_sized_popovers: impl FnOnce(
4689 Pixels,
4690 Pixels,
4691 bool,
4692 &mut Window,
4693 &mut App,
4694 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
4695 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
4696 let text_style = TextStyleRefinement {
4697 line_height: Some(DefiniteLength::Fraction(
4698 BufferLineHeight::Comfortable.value(),
4699 )),
4700 ..Default::default()
4701 };
4702 window.with_text_style(Some(text_style), |window| {
4703 // If the max height won't fit below and there is more space above, put it above the line.
4704 let bottom_y_when_flipped = target_position.y - line_height;
4705 let available_above = bottom_y_when_flipped - text_hitbox.top();
4706 let available_below = text_hitbox.bottom() - target_position.y;
4707 let y_overflows_below = max_height > available_below;
4708 let mut y_flipped = match placement {
4709 Some(ContextMenuPlacement::Above) => true,
4710 Some(ContextMenuPlacement::Below) => false,
4711 None => y_overflows_below && available_above > available_below,
4712 };
4713 let mut height = cmp::min(
4714 max_height,
4715 if y_flipped {
4716 available_above
4717 } else {
4718 available_below
4719 },
4720 );
4721
4722 // If the min height doesn't fit within text bounds, instead fit within the window.
4723 if height < min_height {
4724 let available_above = bottom_y_when_flipped;
4725 let available_below = viewport_bounds.bottom() - target_position.y;
4726 let (y_flipped_override, height_override) = match placement {
4727 Some(ContextMenuPlacement::Above) => {
4728 (true, cmp::min(available_above, min_height))
4729 }
4730 Some(ContextMenuPlacement::Below) => {
4731 (false, cmp::min(available_below, min_height))
4732 }
4733 None => {
4734 if available_below > min_height {
4735 (false, min_height)
4736 } else if available_above > min_height {
4737 (true, min_height)
4738 } else if available_above > available_below {
4739 (true, available_above)
4740 } else {
4741 (false, available_below)
4742 }
4743 }
4744 };
4745 y_flipped = y_flipped_override;
4746 height = height_override;
4747 }
4748
4749 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
4750
4751 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
4752 // for very narrow windows.
4753 let popovers =
4754 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
4755 if popovers.is_empty() {
4756 return None;
4757 }
4758
4759 let max_width = popovers
4760 .iter()
4761 .map(|(_, _, size)| size.width)
4762 .max()
4763 .unwrap_or_default();
4764
4765 let mut current_position = gpui::Point {
4766 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
4767 // overflow. Include space for the scrollbar.
4768 x: target_position
4769 .x
4770 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
4771 y: if y_flipped {
4772 bottom_y_when_flipped
4773 } else {
4774 target_position.y
4775 },
4776 };
4777
4778 let mut laid_out_popovers = popovers
4779 .into_iter()
4780 .map(|(popover_type, element, size)| {
4781 if y_flipped {
4782 current_position.y -= size.height;
4783 }
4784 let position = current_position;
4785 window.defer_draw(element, current_position, 1);
4786 if !y_flipped {
4787 current_position.y += size.height + MENU_GAP;
4788 } else {
4789 current_position.y -= MENU_GAP;
4790 }
4791 (popover_type, Bounds::new(position, size))
4792 })
4793 .collect::<Vec<_>>();
4794
4795 if y_flipped {
4796 laid_out_popovers.reverse();
4797 }
4798
4799 Some((laid_out_popovers, y_flipped))
4800 })
4801 }
4802
4803 fn layout_context_menu_aside(
4804 &self,
4805 y_flipped: bool,
4806 menu_bounds: Bounds<Pixels>,
4807 target_bounds: Bounds<Pixels>,
4808 max_target_bounds: Bounds<Pixels>,
4809 max_height: Pixels,
4810 must_place_above_or_below: bool,
4811 text_hitbox: &Hitbox,
4812 viewport_bounds: Bounds<Pixels>,
4813 window: &mut Window,
4814 cx: &mut App,
4815 ) -> Option<Bounds<Pixels>> {
4816 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
4817 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
4818 && !must_place_above_or_below
4819 {
4820 let max_width = cmp::min(
4821 available_within_viewport.right - px(1.),
4822 MENU_ASIDE_MAX_WIDTH,
4823 );
4824 let mut aside = self.render_context_menu_aside(
4825 size(max_width, max_height - POPOVER_Y_PADDING),
4826 window,
4827 cx,
4828 )?;
4829 let size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
4830 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
4831 Some((aside, right_position, size))
4832 } else {
4833 let max_size = size(
4834 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
4835 // won't be needed here.
4836 cmp::min(
4837 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
4838 viewport_bounds.right(),
4839 ),
4840 cmp::min(
4841 max_height,
4842 cmp::max(
4843 available_within_viewport.top,
4844 available_within_viewport.bottom,
4845 ),
4846 ) - POPOVER_Y_PADDING,
4847 );
4848 let mut aside = self.render_context_menu_aside(max_size, window, cx)?;
4849 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
4850
4851 let top_position = point(
4852 menu_bounds.origin.x,
4853 target_bounds.top() - actual_size.height,
4854 );
4855 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
4856
4857 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
4858 // Prefer to fit on the same side of the line as the menu, then on the other side of
4859 // the line.
4860 if !y_flipped && wanted.height < available.bottom {
4861 Some(bottom_position)
4862 } else if !y_flipped && wanted.height < available.top {
4863 Some(top_position)
4864 } else if y_flipped && wanted.height < available.top {
4865 Some(top_position)
4866 } else if y_flipped && wanted.height < available.bottom {
4867 Some(bottom_position)
4868 } else {
4869 None
4870 }
4871 };
4872
4873 // Prefer choosing a direction using max sizes rather than actual size for stability.
4874 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
4875 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
4876 let aside_position = fit_within(available_within_text, wanted)
4877 // Fallback: fit max size in window.
4878 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
4879 // Fallback: fit actual size in window.
4880 .or_else(|| fit_within(available_within_viewport, actual_size));
4881
4882 aside_position.map(|position| (aside, position, actual_size))
4883 };
4884
4885 // Skip drawing if it doesn't fit anywhere.
4886 if let Some((aside, position, size)) = positioned_aside {
4887 let aside_bounds = Bounds::new(position, size);
4888 window.defer_draw(aside, position, 2);
4889 return Some(aside_bounds);
4890 }
4891
4892 None
4893 }
4894
4895 fn render_context_menu(
4896 &self,
4897 line_height: Pixels,
4898 height: Pixels,
4899 window: &mut Window,
4900 cx: &mut App,
4901 ) -> Option<AnyElement> {
4902 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
4903 self.editor.update(cx, |editor, cx| {
4904 editor.render_context_menu(&self.style, max_height_in_lines, window, cx)
4905 })
4906 }
4907
4908 fn render_context_menu_aside(
4909 &self,
4910 max_size: Size<Pixels>,
4911 window: &mut Window,
4912 cx: &mut App,
4913 ) -> Option<AnyElement> {
4914 if max_size.width < px(100.) || max_size.height < px(12.) {
4915 None
4916 } else {
4917 self.editor.update(cx, |editor, cx| {
4918 editor.render_context_menu_aside(max_size, window, cx)
4919 })
4920 }
4921 }
4922
4923 fn layout_mouse_context_menu(
4924 &self,
4925 editor_snapshot: &EditorSnapshot,
4926 visible_range: Range<DisplayRow>,
4927 content_origin: gpui::Point<Pixels>,
4928 window: &mut Window,
4929 cx: &mut App,
4930 ) -> Option<AnyElement> {
4931 let position = self.editor.update(cx, |editor, _cx| {
4932 let visible_start_point = editor.display_to_pixel_point(
4933 DisplayPoint::new(visible_range.start, 0),
4934 editor_snapshot,
4935 window,
4936 )?;
4937 let visible_end_point = editor.display_to_pixel_point(
4938 DisplayPoint::new(visible_range.end, 0),
4939 editor_snapshot,
4940 window,
4941 )?;
4942
4943 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
4944 let (source_display_point, position) = match mouse_context_menu.position {
4945 MenuPosition::PinnedToScreen(point) => (None, point),
4946 MenuPosition::PinnedToEditor { source, offset } => {
4947 let source_display_point = source.to_display_point(editor_snapshot);
4948 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
4949 let position = content_origin + source_point + offset;
4950 (Some(source_display_point), position)
4951 }
4952 };
4953
4954 let source_included = source_display_point.is_none_or(|source_display_point| {
4955 visible_range
4956 .to_inclusive()
4957 .contains(&source_display_point.row())
4958 });
4959 let position_included =
4960 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
4961 if !source_included && !position_included {
4962 None
4963 } else {
4964 Some(position)
4965 }
4966 })?;
4967
4968 let text_style = TextStyleRefinement {
4969 line_height: Some(DefiniteLength::Fraction(
4970 BufferLineHeight::Comfortable.value(),
4971 )),
4972 ..Default::default()
4973 };
4974 window.with_text_style(Some(text_style), |window| {
4975 let mut element = self.editor.read_with(cx, |editor, _| {
4976 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
4977 let context_menu = mouse_context_menu.context_menu.clone();
4978
4979 Some(
4980 deferred(
4981 anchored()
4982 .position(position)
4983 .child(context_menu)
4984 .anchor(Corner::TopLeft)
4985 .snap_to_window_with_margin(px(8.)),
4986 )
4987 .with_priority(1)
4988 .into_any(),
4989 )
4990 })?;
4991
4992 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
4993 Some(element)
4994 })
4995 }
4996
4997 fn layout_hover_popovers(
4998 &self,
4999 snapshot: &EditorSnapshot,
5000 hitbox: &Hitbox,
5001 visible_display_row_range: Range<DisplayRow>,
5002 content_origin: gpui::Point<Pixels>,
5003 scroll_pixel_position: gpui::Point<Pixels>,
5004 line_layouts: &[LineWithInvisibles],
5005 line_height: Pixels,
5006 em_width: Pixels,
5007 context_menu_layout: Option<ContextMenuLayout>,
5008 window: &mut Window,
5009 cx: &mut App,
5010 ) {
5011 struct MeasuredHoverPopover {
5012 element: AnyElement,
5013 size: Size<Pixels>,
5014 horizontal_offset: Pixels,
5015 }
5016
5017 let max_size = size(
5018 (120. * em_width) // Default size
5019 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5020 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5021 (16. * line_height) // Default size
5022 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5023 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5024 );
5025
5026 let hover_popovers = self.editor.update(cx, |editor, cx| {
5027 editor.hover_state.render(
5028 snapshot,
5029 visible_display_row_range.clone(),
5030 max_size,
5031 window,
5032 cx,
5033 )
5034 });
5035 let Some((position, hover_popovers)) = hover_popovers else {
5036 return;
5037 };
5038
5039 // This is safe because we check on layout whether the required row is available
5040 let hovered_row_layout =
5041 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
5042
5043 // Compute Hovered Point
5044 let x =
5045 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
5046 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
5047 let hovered_point = content_origin + point(x, y);
5048
5049 let mut overall_height = Pixels::ZERO;
5050 let mut measured_hover_popovers = Vec::new();
5051 for (position, mut hover_popover) in hover_popovers.into_iter().with_position() {
5052 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
5053 let horizontal_offset =
5054 (hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
5055 .min(Pixels::ZERO);
5056 match position {
5057 itertools::Position::Middle | itertools::Position::Last => {
5058 overall_height += HOVER_POPOVER_GAP
5059 }
5060 _ => {}
5061 }
5062 overall_height += size.height;
5063 measured_hover_popovers.push(MeasuredHoverPopover {
5064 element: hover_popover,
5065 size,
5066 horizontal_offset,
5067 });
5068 }
5069
5070 fn draw_occluder(
5071 width: Pixels,
5072 origin: gpui::Point<Pixels>,
5073 window: &mut Window,
5074 cx: &mut App,
5075 ) {
5076 let mut occlusion = div()
5077 .size_full()
5078 .occlude()
5079 .on_mouse_move(|_, _, cx| cx.stop_propagation())
5080 .into_any_element();
5081 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
5082 window.defer_draw(occlusion, origin, 2);
5083 }
5084
5085 fn place_popovers_above(
5086 hovered_point: gpui::Point<Pixels>,
5087 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5088 window: &mut Window,
5089 cx: &mut App,
5090 ) {
5091 let mut current_y = hovered_point.y;
5092 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5093 let size = popover.size;
5094 let popover_origin = point(
5095 hovered_point.x + popover.horizontal_offset,
5096 current_y - size.height,
5097 );
5098
5099 window.defer_draw(popover.element, popover_origin, 2);
5100 if position != itertools::Position::Last {
5101 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
5102 draw_occluder(size.width, origin, window, cx);
5103 }
5104
5105 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5106 }
5107 }
5108
5109 fn place_popovers_below(
5110 hovered_point: gpui::Point<Pixels>,
5111 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5112 line_height: Pixels,
5113 window: &mut Window,
5114 cx: &mut App,
5115 ) {
5116 let mut current_y = hovered_point.y + line_height;
5117 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5118 let size = popover.size;
5119 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5120
5121 window.defer_draw(popover.element, popover_origin, 2);
5122 if position != itertools::Position::Last {
5123 let origin = point(popover_origin.x, popover_origin.y + size.height);
5124 draw_occluder(size.width, origin, window, cx);
5125 }
5126
5127 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5128 }
5129 }
5130
5131 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5132 context_menu_layout
5133 .as_ref()
5134 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5135 };
5136
5137 let can_place_above = {
5138 let mut bounds_above = Vec::new();
5139 let mut current_y = hovered_point.y;
5140 for popover in &measured_hover_popovers {
5141 let size = popover.size;
5142 let popover_origin = point(
5143 hovered_point.x + popover.horizontal_offset,
5144 current_y - size.height,
5145 );
5146 bounds_above.push(Bounds::new(popover_origin, size));
5147 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5148 }
5149 bounds_above
5150 .iter()
5151 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5152 };
5153
5154 let can_place_below = || {
5155 let mut bounds_below = Vec::new();
5156 let mut current_y = hovered_point.y + line_height;
5157 for popover in &measured_hover_popovers {
5158 let size = popover.size;
5159 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5160 bounds_below.push(Bounds::new(popover_origin, size));
5161 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5162 }
5163 bounds_below
5164 .iter()
5165 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5166 };
5167
5168 if can_place_above {
5169 // try placing above hovered point
5170 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5171 } else if can_place_below() {
5172 // try placing below hovered point
5173 place_popovers_below(
5174 hovered_point,
5175 measured_hover_popovers,
5176 line_height,
5177 window,
5178 cx,
5179 );
5180 } else {
5181 // try to place popovers around the context menu
5182 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5183 let total_width = measured_hover_popovers
5184 .iter()
5185 .map(|p| p.size.width)
5186 .max()
5187 .unwrap_or(Pixels::ZERO);
5188 let y_for_horizontal_positioning = if menu.y_flipped {
5189 menu.bounds.bottom() - overall_height
5190 } else {
5191 menu.bounds.top()
5192 };
5193 let possible_origins = vec![
5194 // left of context menu
5195 point(
5196 menu.bounds.left() - total_width - HOVER_POPOVER_GAP,
5197 y_for_horizontal_positioning,
5198 ),
5199 // right of context menu
5200 point(
5201 menu.bounds.right() + HOVER_POPOVER_GAP,
5202 y_for_horizontal_positioning,
5203 ),
5204 // top of context menu
5205 point(
5206 menu.bounds.left(),
5207 menu.bounds.top() - overall_height - HOVER_POPOVER_GAP,
5208 ),
5209 // bottom of context menu
5210 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5211 ];
5212 possible_origins.into_iter().find(|&origin| {
5213 Bounds::new(origin, size(total_width, overall_height))
5214 .is_contained_within(hitbox)
5215 })
5216 });
5217 if let Some(origin) = origin_surrounding_menu {
5218 let mut current_y = origin.y;
5219 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5220 let size = popover.size;
5221 let popover_origin = point(origin.x, current_y);
5222
5223 window.defer_draw(popover.element, popover_origin, 2);
5224 if position != itertools::Position::Last {
5225 let origin = point(popover_origin.x, popover_origin.y + size.height);
5226 draw_occluder(size.width, origin, window, cx);
5227 }
5228
5229 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5230 }
5231 } else {
5232 // fallback to existing above/below cursor logic
5233 // this might overlap menu or overflow in rare case
5234 if can_place_above {
5235 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5236 } else {
5237 place_popovers_below(
5238 hovered_point,
5239 measured_hover_popovers,
5240 line_height,
5241 window,
5242 cx,
5243 );
5244 }
5245 }
5246 }
5247 }
5248
5249 fn layout_diff_hunk_controls(
5250 &self,
5251 row_range: Range<DisplayRow>,
5252 row_infos: &[RowInfo],
5253 text_hitbox: &Hitbox,
5254 newest_cursor_position: Option<DisplayPoint>,
5255 line_height: Pixels,
5256 right_margin: Pixels,
5257 scroll_pixel_position: gpui::Point<Pixels>,
5258 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5259 highlighted_rows: &BTreeMap<DisplayRow, LineHighlight>,
5260 editor: Entity<Editor>,
5261 window: &mut Window,
5262 cx: &mut App,
5263 ) -> (Vec<AnyElement>, Vec<(DisplayRow, Bounds<Pixels>)>) {
5264 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
5265 let hovered_diff_hunk_row = editor.read(cx).hovered_diff_hunk_row;
5266
5267 let mut controls = vec![];
5268 let mut control_bounds = vec![];
5269
5270 let active_positions = [
5271 hovered_diff_hunk_row.map(|row| DisplayPoint::new(row, 0)),
5272 newest_cursor_position,
5273 ];
5274
5275 for (hunk, _) in display_hunks {
5276 if let DisplayDiffHunk::Unfolded {
5277 display_row_range,
5278 multi_buffer_range,
5279 status,
5280 is_created_file,
5281 ..
5282 } = &hunk
5283 {
5284 if display_row_range.start < row_range.start
5285 || display_row_range.start >= row_range.end
5286 {
5287 continue;
5288 }
5289 if highlighted_rows
5290 .get(&display_row_range.start)
5291 .and_then(|highlight| highlight.type_id)
5292 .is_some_and(|type_id| {
5293 [
5294 TypeId::of::<ConflictsOuter>(),
5295 TypeId::of::<ConflictsOursMarker>(),
5296 TypeId::of::<ConflictsOurs>(),
5297 TypeId::of::<ConflictsTheirs>(),
5298 TypeId::of::<ConflictsTheirsMarker>(),
5299 ]
5300 .contains(&type_id)
5301 })
5302 {
5303 continue;
5304 }
5305 let row_ix = (display_row_range.start - row_range.start).0 as usize;
5306 if row_infos[row_ix].diff_status.is_none() {
5307 continue;
5308 }
5309 if row_infos[row_ix]
5310 .diff_status
5311 .is_some_and(|status| status.is_added())
5312 && !status.is_added()
5313 {
5314 continue;
5315 }
5316
5317 if active_positions
5318 .iter()
5319 .any(|p| p.is_some_and(|p| display_row_range.contains(&p.row())))
5320 {
5321 let y = display_row_range.start.as_f32() * line_height
5322 + text_hitbox.bounds.top()
5323 - scroll_pixel_position.y;
5324
5325 let mut element = render_diff_hunk_controls(
5326 display_row_range.start.0,
5327 status,
5328 multi_buffer_range.clone(),
5329 *is_created_file,
5330 line_height,
5331 &editor,
5332 window,
5333 cx,
5334 );
5335 let size =
5336 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
5337
5338 let x = text_hitbox.bounds.right() - right_margin - px(10.) - size.width;
5339
5340 let bounds = Bounds::new(gpui::Point::new(x, y), size);
5341 control_bounds.push((display_row_range.start, bounds));
5342
5343 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
5344 element.prepaint(window, cx)
5345 });
5346 controls.push(element);
5347 }
5348 }
5349 }
5350
5351 (controls, control_bounds)
5352 }
5353
5354 fn layout_signature_help(
5355 &self,
5356 hitbox: &Hitbox,
5357 content_origin: gpui::Point<Pixels>,
5358 scroll_pixel_position: gpui::Point<Pixels>,
5359 newest_selection_head: Option<DisplayPoint>,
5360 start_row: DisplayRow,
5361 line_layouts: &[LineWithInvisibles],
5362 line_height: Pixels,
5363 em_width: Pixels,
5364 context_menu_layout: Option<ContextMenuLayout>,
5365 window: &mut Window,
5366 cx: &mut App,
5367 ) {
5368 if !self.editor.focus_handle(cx).is_focused(window) {
5369 return;
5370 }
5371 let Some(newest_selection_head) = newest_selection_head else {
5372 return;
5373 };
5374
5375 let max_size = size(
5376 (120. * em_width) // Default size
5377 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5378 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5379 (16. * line_height) // Default size
5380 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5381 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5382 );
5383
5384 let maybe_element = self.editor.update(cx, |editor, cx| {
5385 if let Some(popover) = editor.signature_help_state.popover_mut() {
5386 let element = popover.render(max_size, window, cx);
5387 Some(element)
5388 } else {
5389 None
5390 }
5391 });
5392 let Some(mut element) = maybe_element else {
5393 return;
5394 };
5395
5396 let selection_row = newest_selection_head.row();
5397 let Some(cursor_row_layout) = (selection_row >= start_row)
5398 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
5399 .flatten()
5400 else {
5401 return;
5402 };
5403
5404 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
5405 - scroll_pixel_position.x;
5406 let target_y = selection_row.as_f32() * line_height - scroll_pixel_position.y;
5407 let target_point = content_origin + point(target_x, target_y);
5408
5409 let actual_size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
5410
5411 let (popover_bounds_above, popover_bounds_below) = {
5412 let horizontal_offset = (hitbox.top_right().x
5413 - POPOVER_RIGHT_OFFSET
5414 - (target_point.x + actual_size.width))
5415 .min(Pixels::ZERO);
5416 let initial_x = target_point.x + horizontal_offset;
5417 (
5418 Bounds::new(
5419 point(initial_x, target_point.y - actual_size.height),
5420 actual_size,
5421 ),
5422 Bounds::new(
5423 point(initial_x, target_point.y + line_height + HOVER_POPOVER_GAP),
5424 actual_size,
5425 ),
5426 )
5427 };
5428
5429 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5430 context_menu_layout
5431 .as_ref()
5432 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5433 };
5434
5435 let final_origin = if popover_bounds_above.is_contained_within(hitbox)
5436 && !intersects_menu(popover_bounds_above)
5437 {
5438 // try placing above cursor
5439 popover_bounds_above.origin
5440 } else if popover_bounds_below.is_contained_within(hitbox)
5441 && !intersects_menu(popover_bounds_below)
5442 {
5443 // try placing below cursor
5444 popover_bounds_below.origin
5445 } else {
5446 // try surrounding context menu if exists
5447 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5448 let y_for_horizontal_positioning = if menu.y_flipped {
5449 menu.bounds.bottom() - actual_size.height
5450 } else {
5451 menu.bounds.top()
5452 };
5453 let possible_origins = vec![
5454 // left of context menu
5455 point(
5456 menu.bounds.left() - actual_size.width - HOVER_POPOVER_GAP,
5457 y_for_horizontal_positioning,
5458 ),
5459 // right of context menu
5460 point(
5461 menu.bounds.right() + HOVER_POPOVER_GAP,
5462 y_for_horizontal_positioning,
5463 ),
5464 // top of context menu
5465 point(
5466 menu.bounds.left(),
5467 menu.bounds.top() - actual_size.height - HOVER_POPOVER_GAP,
5468 ),
5469 // bottom of context menu
5470 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5471 ];
5472 possible_origins
5473 .into_iter()
5474 .find(|&origin| Bounds::new(origin, actual_size).is_contained_within(hitbox))
5475 });
5476 origin_surrounding_menu.unwrap_or_else(|| {
5477 // fallback to existing above/below cursor logic
5478 // this might overlap menu or overflow in rare case
5479 if popover_bounds_above.is_contained_within(hitbox) {
5480 popover_bounds_above.origin
5481 } else {
5482 popover_bounds_below.origin
5483 }
5484 })
5485 };
5486
5487 window.defer_draw(element, final_origin, 2);
5488 }
5489
5490 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5491 window.paint_layer(layout.hitbox.bounds, |window| {
5492 let scroll_top = layout.position_map.snapshot.scroll_position().y;
5493 let gutter_bg = cx.theme().colors().editor_gutter_background;
5494 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
5495 window.paint_quad(fill(
5496 layout.position_map.text_hitbox.bounds,
5497 self.style.background,
5498 ));
5499
5500 if matches!(
5501 layout.mode,
5502 EditorMode::Full { .. } | EditorMode::Minimap { .. }
5503 ) {
5504 let show_active_line_background = match layout.mode {
5505 EditorMode::Full {
5506 show_active_line_background,
5507 ..
5508 } => show_active_line_background,
5509 EditorMode::Minimap { .. } => true,
5510 _ => false,
5511 };
5512 let mut active_rows = layout.active_rows.iter().peekable();
5513 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
5514 let mut end_row = start_row.0;
5515 while active_rows
5516 .peek()
5517 .is_some_and(|(active_row, has_selection)| {
5518 active_row.0 == end_row + 1
5519 && has_selection.selection == contains_non_empty_selection.selection
5520 })
5521 {
5522 active_rows.next().unwrap();
5523 end_row += 1;
5524 }
5525
5526 if show_active_line_background && !contains_non_empty_selection.selection {
5527 let highlight_h_range =
5528 match layout.position_map.snapshot.current_line_highlight {
5529 CurrentLineHighlight::Gutter => Some(Range {
5530 start: layout.hitbox.left(),
5531 end: layout.gutter_hitbox.right(),
5532 }),
5533 CurrentLineHighlight::Line => Some(Range {
5534 start: layout.position_map.text_hitbox.bounds.left(),
5535 end: layout.position_map.text_hitbox.bounds.right(),
5536 }),
5537 CurrentLineHighlight::All => Some(Range {
5538 start: layout.hitbox.left(),
5539 end: layout.hitbox.right(),
5540 }),
5541 CurrentLineHighlight::None => None,
5542 };
5543 if let Some(range) = highlight_h_range {
5544 let active_line_bg = cx.theme().colors().editor_active_line_background;
5545 let bounds = Bounds {
5546 origin: point(
5547 range.start,
5548 layout.hitbox.origin.y
5549 + (start_row.as_f32() - scroll_top)
5550 * layout.position_map.line_height,
5551 ),
5552 size: size(
5553 range.end - range.start,
5554 layout.position_map.line_height
5555 * (end_row - start_row.0 + 1) as f32,
5556 ),
5557 };
5558 window.paint_quad(fill(bounds, active_line_bg));
5559 }
5560 }
5561 }
5562
5563 let mut paint_highlight = |highlight_row_start: DisplayRow,
5564 highlight_row_end: DisplayRow,
5565 highlight: crate::LineHighlight,
5566 edges| {
5567 let mut origin_x = layout.hitbox.left();
5568 let mut width = layout.hitbox.size.width;
5569 if !highlight.include_gutter {
5570 origin_x += layout.gutter_hitbox.size.width;
5571 width -= layout.gutter_hitbox.size.width;
5572 }
5573
5574 let origin = point(
5575 origin_x,
5576 layout.hitbox.origin.y
5577 + (highlight_row_start.as_f32() - scroll_top)
5578 * layout.position_map.line_height,
5579 );
5580 let size = size(
5581 width,
5582 layout.position_map.line_height
5583 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
5584 );
5585 let mut quad = fill(Bounds { origin, size }, highlight.background);
5586 if let Some(border_color) = highlight.border {
5587 quad.border_color = border_color;
5588 quad.border_widths = edges
5589 }
5590 window.paint_quad(quad);
5591 };
5592
5593 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
5594 None;
5595 for (&new_row, &new_background) in &layout.highlighted_rows {
5596 match &mut current_paint {
5597 &mut Some((current_background, ref mut current_range, mut edges)) => {
5598 let new_range_started = current_background != new_background
5599 || current_range.end.next_row() != new_row;
5600 if new_range_started {
5601 if current_range.end.next_row() == new_row {
5602 edges.bottom = px(0.);
5603 };
5604 paint_highlight(
5605 current_range.start,
5606 current_range.end,
5607 current_background,
5608 edges,
5609 );
5610 let edges = Edges {
5611 top: if current_range.end.next_row() != new_row {
5612 px(1.)
5613 } else {
5614 px(0.)
5615 },
5616 bottom: px(1.),
5617 ..Default::default()
5618 };
5619 current_paint = Some((new_background, new_row..new_row, edges));
5620 continue;
5621 } else {
5622 current_range.end = current_range.end.next_row();
5623 }
5624 }
5625 None => {
5626 let edges = Edges {
5627 top: px(1.),
5628 bottom: px(1.),
5629 ..Default::default()
5630 };
5631 current_paint = Some((new_background, new_row..new_row, edges))
5632 }
5633 };
5634 }
5635 if let Some((color, range, edges)) = current_paint {
5636 paint_highlight(range.start, range.end, color, edges);
5637 }
5638
5639 for (guide_x, active) in layout.wrap_guides.iter() {
5640 let color = if *active {
5641 cx.theme().colors().editor_active_wrap_guide
5642 } else {
5643 cx.theme().colors().editor_wrap_guide
5644 };
5645 window.paint_quad(fill(
5646 Bounds {
5647 origin: point(*guide_x, layout.position_map.text_hitbox.origin.y),
5648 size: size(px(1.), layout.position_map.text_hitbox.size.height),
5649 },
5650 color,
5651 ));
5652 }
5653 }
5654 })
5655 }
5656
5657 fn paint_indent_guides(
5658 &mut self,
5659 layout: &mut EditorLayout,
5660 window: &mut Window,
5661 cx: &mut App,
5662 ) {
5663 let Some(indent_guides) = &layout.indent_guides else {
5664 return;
5665 };
5666
5667 let faded_color = |color: Hsla, alpha: f32| {
5668 let mut faded = color;
5669 faded.a = alpha;
5670 faded
5671 };
5672
5673 for indent_guide in indent_guides {
5674 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
5675 let settings = &indent_guide.settings;
5676
5677 // TODO fixed for now, expose them through themes later
5678 const INDENT_AWARE_ALPHA: f32 = 0.2;
5679 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
5680 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
5681 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
5682
5683 let line_color = match (settings.coloring, indent_guide.active) {
5684 (IndentGuideColoring::Disabled, _) => None,
5685 (IndentGuideColoring::Fixed, false) => {
5686 Some(cx.theme().colors().editor_indent_guide)
5687 }
5688 (IndentGuideColoring::Fixed, true) => {
5689 Some(cx.theme().colors().editor_indent_guide_active)
5690 }
5691 (IndentGuideColoring::IndentAware, false) => {
5692 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
5693 }
5694 (IndentGuideColoring::IndentAware, true) => {
5695 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
5696 }
5697 };
5698
5699 let background_color = match (settings.background_coloring, indent_guide.active) {
5700 (IndentGuideBackgroundColoring::Disabled, _) => None,
5701 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
5702 indent_accent_colors,
5703 INDENT_AWARE_BACKGROUND_ALPHA,
5704 )),
5705 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
5706 indent_accent_colors,
5707 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
5708 )),
5709 };
5710
5711 let requested_line_width = if indent_guide.active {
5712 settings.active_line_width
5713 } else {
5714 settings.line_width
5715 }
5716 .clamp(1, 10);
5717 let mut line_indicator_width = 0.;
5718 if let Some(color) = line_color {
5719 window.paint_quad(fill(
5720 Bounds {
5721 origin: indent_guide.origin,
5722 size: size(px(requested_line_width as f32), indent_guide.length),
5723 },
5724 color,
5725 ));
5726 line_indicator_width = requested_line_width as f32;
5727 }
5728
5729 if let Some(color) = background_color {
5730 let width = indent_guide.single_indent_width - px(line_indicator_width);
5731 window.paint_quad(fill(
5732 Bounds {
5733 origin: point(
5734 indent_guide.origin.x + px(line_indicator_width),
5735 indent_guide.origin.y,
5736 ),
5737 size: size(width, indent_guide.length),
5738 },
5739 color,
5740 ));
5741 }
5742 }
5743 }
5744
5745 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5746 let is_singleton = self.editor.read(cx).is_singleton(cx);
5747
5748 let line_height = layout.position_map.line_height;
5749 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
5750
5751 for LineNumberLayout {
5752 shaped_line,
5753 hitbox,
5754 } in layout.line_numbers.values()
5755 {
5756 let Some(hitbox) = hitbox else {
5757 continue;
5758 };
5759
5760 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
5761 let color = cx.theme().colors().editor_hover_line_number;
5762
5763 let line = self.shape_line_number(shaped_line.text.clone(), color, window);
5764 line.paint(hitbox.origin, line_height, window, cx).log_err()
5765 } else {
5766 shaped_line
5767 .paint(hitbox.origin, line_height, window, cx)
5768 .log_err()
5769 }) else {
5770 continue;
5771 };
5772
5773 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
5774 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
5775 if is_singleton {
5776 window.set_cursor_style(CursorStyle::IBeam, hitbox);
5777 } else {
5778 window.set_cursor_style(CursorStyle::PointingHand, hitbox);
5779 }
5780 }
5781 }
5782
5783 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5784 if layout.display_hunks.is_empty() {
5785 return;
5786 }
5787
5788 let line_height = layout.position_map.line_height;
5789 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5790 for (hunk, hitbox) in &layout.display_hunks {
5791 let hunk_to_paint = match hunk {
5792 DisplayDiffHunk::Folded { .. } => {
5793 let hunk_bounds = Self::diff_hunk_bounds(
5794 &layout.position_map.snapshot,
5795 line_height,
5796 layout.gutter_hitbox.bounds,
5797 hunk,
5798 );
5799 Some((
5800 hunk_bounds,
5801 cx.theme().colors().version_control_modified,
5802 Corners::all(px(0.)),
5803 DiffHunkStatus::modified_none(),
5804 ))
5805 }
5806 DisplayDiffHunk::Unfolded {
5807 status,
5808 display_row_range,
5809 ..
5810 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
5811 DiffHunkStatusKind::Added => (
5812 hunk_hitbox.bounds,
5813 cx.theme().colors().version_control_added,
5814 Corners::all(px(0.)),
5815 *status,
5816 ),
5817 DiffHunkStatusKind::Modified => (
5818 hunk_hitbox.bounds,
5819 cx.theme().colors().version_control_modified,
5820 Corners::all(px(0.)),
5821 *status,
5822 ),
5823 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
5824 hunk_hitbox.bounds,
5825 cx.theme().colors().version_control_deleted,
5826 Corners::all(px(0.)),
5827 *status,
5828 ),
5829 DiffHunkStatusKind::Deleted => (
5830 Bounds::new(
5831 point(
5832 hunk_hitbox.origin.x - hunk_hitbox.size.width,
5833 hunk_hitbox.origin.y,
5834 ),
5835 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
5836 ),
5837 cx.theme().colors().version_control_deleted,
5838 Corners::all(1. * line_height),
5839 *status,
5840 ),
5841 }),
5842 };
5843
5844 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
5845 // Flatten the background color with the editor color to prevent
5846 // elements below transparent hunks from showing through
5847 let flattened_background_color = cx
5848 .theme()
5849 .colors()
5850 .editor_background
5851 .blend(background_color);
5852
5853 if !Self::diff_hunk_hollow(status, cx) {
5854 window.paint_quad(quad(
5855 hunk_bounds,
5856 corner_radii,
5857 flattened_background_color,
5858 Edges::default(),
5859 transparent_black(),
5860 BorderStyle::default(),
5861 ));
5862 } else {
5863 let flattened_unstaged_background_color = cx
5864 .theme()
5865 .colors()
5866 .editor_background
5867 .blend(background_color.opacity(0.3));
5868
5869 window.paint_quad(quad(
5870 hunk_bounds,
5871 corner_radii,
5872 flattened_unstaged_background_color,
5873 Edges::all(Pixels(1.0)),
5874 flattened_background_color,
5875 BorderStyle::Solid,
5876 ));
5877 }
5878 }
5879 }
5880 });
5881 }
5882
5883 fn gutter_strip_width(line_height: Pixels) -> Pixels {
5884 (0.275 * line_height).floor()
5885 }
5886
5887 fn diff_hunk_bounds(
5888 snapshot: &EditorSnapshot,
5889 line_height: Pixels,
5890 gutter_bounds: Bounds<Pixels>,
5891 hunk: &DisplayDiffHunk,
5892 ) -> Bounds<Pixels> {
5893 let scroll_position = snapshot.scroll_position();
5894 let scroll_top = scroll_position.y * line_height;
5895 let gutter_strip_width = Self::gutter_strip_width(line_height);
5896
5897 match hunk {
5898 DisplayDiffHunk::Folded { display_row, .. } => {
5899 let start_y = display_row.as_f32() * line_height - scroll_top;
5900 let end_y = start_y + line_height;
5901 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5902 let highlight_size = size(gutter_strip_width, end_y - start_y);
5903 Bounds::new(highlight_origin, highlight_size)
5904 }
5905 DisplayDiffHunk::Unfolded {
5906 display_row_range,
5907 status,
5908 ..
5909 } => {
5910 if status.is_deleted() && display_row_range.is_empty() {
5911 let row = display_row_range.start;
5912
5913 let offset = line_height / 2.;
5914 let start_y = row.as_f32() * line_height - offset - scroll_top;
5915 let end_y = start_y + line_height;
5916
5917 let width = (0.35 * line_height).floor();
5918 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5919 let highlight_size = size(width, end_y - start_y);
5920 Bounds::new(highlight_origin, highlight_size)
5921 } else {
5922 let start_row = display_row_range.start;
5923 let end_row = display_row_range.end;
5924 // If we're in a multibuffer, row range span might include an
5925 // excerpt header, so if we were to draw the marker straight away,
5926 // the hunk might include the rows of that header.
5927 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
5928 // Instead, we simply check whether the range we're dealing with includes
5929 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
5930 let end_row_in_current_excerpt = snapshot
5931 .blocks_in_range(start_row..end_row)
5932 .find_map(|(start_row, block)| {
5933 if matches!(
5934 block,
5935 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
5936 ) {
5937 Some(start_row)
5938 } else {
5939 None
5940 }
5941 })
5942 .unwrap_or(end_row);
5943
5944 let start_y = start_row.as_f32() * line_height - scroll_top;
5945 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
5946
5947 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5948 let highlight_size = size(gutter_strip_width, end_y - start_y);
5949 Bounds::new(highlight_origin, highlight_size)
5950 }
5951 }
5952 }
5953 }
5954
5955 fn paint_gutter_indicators(
5956 &self,
5957 layout: &mut EditorLayout,
5958 window: &mut Window,
5959 cx: &mut App,
5960 ) {
5961 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5962 window.with_element_namespace("crease_toggles", |window| {
5963 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
5964 crease_toggle.paint(window, cx);
5965 }
5966 });
5967
5968 window.with_element_namespace("expand_toggles", |window| {
5969 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
5970 expand_toggle.paint(window, cx);
5971 }
5972 });
5973
5974 for breakpoint in layout.breakpoints.iter_mut() {
5975 breakpoint.paint(window, cx);
5976 }
5977
5978 for test_indicator in layout.test_indicators.iter_mut() {
5979 test_indicator.paint(window, cx);
5980 }
5981 });
5982 }
5983
5984 fn paint_gutter_highlights(
5985 &self,
5986 layout: &mut EditorLayout,
5987 window: &mut Window,
5988 cx: &mut App,
5989 ) {
5990 for (_, hunk_hitbox) in &layout.display_hunks {
5991 if let Some(hunk_hitbox) = hunk_hitbox
5992 && !self
5993 .editor
5994 .read(cx)
5995 .buffer()
5996 .read(cx)
5997 .all_diff_hunks_expanded()
5998 {
5999 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
6000 }
6001 }
6002
6003 let show_git_gutter = layout
6004 .position_map
6005 .snapshot
6006 .show_git_diff_gutter
6007 .unwrap_or_else(|| {
6008 matches!(
6009 ProjectSettings::get_global(cx).git.git_gutter,
6010 GitGutterSetting::TrackedFiles
6011 )
6012 });
6013 if show_git_gutter {
6014 Self::paint_gutter_diff_hunks(layout, window, cx)
6015 }
6016
6017 let highlight_width = 0.275 * layout.position_map.line_height;
6018 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
6019 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6020 for (range, color) in &layout.highlighted_gutter_ranges {
6021 let start_row = if range.start.row() < layout.visible_display_row_range.start {
6022 layout.visible_display_row_range.start - DisplayRow(1)
6023 } else {
6024 range.start.row()
6025 };
6026 let end_row = if range.end.row() > layout.visible_display_row_range.end {
6027 layout.visible_display_row_range.end + DisplayRow(1)
6028 } else {
6029 range.end.row()
6030 };
6031
6032 let start_y = layout.gutter_hitbox.top()
6033 + start_row.0 as f32 * layout.position_map.line_height
6034 - layout.position_map.scroll_pixel_position.y;
6035 let end_y = layout.gutter_hitbox.top()
6036 + (end_row.0 + 1) as f32 * layout.position_map.line_height
6037 - layout.position_map.scroll_pixel_position.y;
6038 let bounds = Bounds::from_corners(
6039 point(layout.gutter_hitbox.left(), start_y),
6040 point(layout.gutter_hitbox.left() + highlight_width, end_y),
6041 );
6042 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
6043 }
6044 });
6045 }
6046
6047 fn paint_blamed_display_rows(
6048 &self,
6049 layout: &mut EditorLayout,
6050 window: &mut Window,
6051 cx: &mut App,
6052 ) {
6053 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
6054 return;
6055 };
6056
6057 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6058 for mut blame_element in blamed_display_rows.into_iter() {
6059 blame_element.paint(window, cx);
6060 }
6061 })
6062 }
6063
6064 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6065 window.with_content_mask(
6066 Some(ContentMask {
6067 bounds: layout.position_map.text_hitbox.bounds,
6068 }),
6069 |window| {
6070 let editor = self.editor.read(cx);
6071 if editor.mouse_cursor_hidden {
6072 window.set_window_cursor_style(CursorStyle::None);
6073 } else if let SelectionDragState::ReadyToDrag {
6074 mouse_down_time, ..
6075 } = &editor.selection_drag_state
6076 {
6077 let drag_and_drop_delay = Duration::from_millis(
6078 EditorSettings::get_global(cx).drag_and_drop_selection.delay,
6079 );
6080 if mouse_down_time.elapsed() >= drag_and_drop_delay {
6081 window.set_cursor_style(
6082 CursorStyle::DragCopy,
6083 &layout.position_map.text_hitbox,
6084 );
6085 }
6086 } else if matches!(
6087 editor.selection_drag_state,
6088 SelectionDragState::Dragging { .. }
6089 ) {
6090 window
6091 .set_cursor_style(CursorStyle::DragCopy, &layout.position_map.text_hitbox);
6092 } else if editor
6093 .hovered_link_state
6094 .as_ref()
6095 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
6096 {
6097 window.set_cursor_style(
6098 CursorStyle::PointingHand,
6099 &layout.position_map.text_hitbox,
6100 );
6101 } else {
6102 window.set_cursor_style(CursorStyle::IBeam, &layout.position_map.text_hitbox);
6103 };
6104
6105 self.paint_lines_background(layout, window, cx);
6106 let invisible_display_ranges = self.paint_highlights(layout, window, cx);
6107 self.paint_document_colors(layout, window);
6108 self.paint_lines(&invisible_display_ranges, layout, window, cx);
6109 self.paint_redactions(layout, window);
6110 self.paint_cursors(layout, window, cx);
6111 self.paint_inline_diagnostics(layout, window, cx);
6112 self.paint_inline_blame(layout, window, cx);
6113 self.paint_inline_code_actions(layout, window, cx);
6114 self.paint_diff_hunk_controls(layout, window, cx);
6115 window.with_element_namespace("crease_trailers", |window| {
6116 for trailer in layout.crease_trailers.iter_mut().flatten() {
6117 trailer.element.paint(window, cx);
6118 }
6119 });
6120 },
6121 )
6122 }
6123
6124 fn paint_highlights(
6125 &mut self,
6126 layout: &mut EditorLayout,
6127 window: &mut Window,
6128 cx: &mut App,
6129 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
6130 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6131 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
6132 let line_end_overshoot = 0.15 * layout.position_map.line_height;
6133 for (range, color) in &layout.highlighted_ranges {
6134 self.paint_highlighted_range(
6135 range.clone(),
6136 true,
6137 *color,
6138 Pixels::ZERO,
6139 line_end_overshoot,
6140 layout,
6141 window,
6142 );
6143 }
6144
6145 let corner_radius = if EditorSettings::get_global(cx).rounded_selection {
6146 0.15 * layout.position_map.line_height
6147 } else {
6148 Pixels::ZERO
6149 };
6150
6151 for (player_color, selections) in &layout.selections {
6152 for selection in selections.iter() {
6153 self.paint_highlighted_range(
6154 selection.range.clone(),
6155 true,
6156 player_color.selection,
6157 corner_radius,
6158 corner_radius * 2.,
6159 layout,
6160 window,
6161 );
6162
6163 if selection.is_local && !selection.range.is_empty() {
6164 invisible_display_ranges.push(selection.range.clone());
6165 }
6166 }
6167 }
6168 invisible_display_ranges
6169 })
6170 }
6171
6172 fn paint_lines(
6173 &mut self,
6174 invisible_display_ranges: &[Range<DisplayPoint>],
6175 layout: &mut EditorLayout,
6176 window: &mut Window,
6177 cx: &mut App,
6178 ) {
6179 let whitespace_setting = self
6180 .editor
6181 .read(cx)
6182 .buffer
6183 .read(cx)
6184 .language_settings(cx)
6185 .show_whitespaces;
6186
6187 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6188 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6189 line_with_invisibles.draw(
6190 layout,
6191 row,
6192 layout.content_origin,
6193 whitespace_setting,
6194 invisible_display_ranges,
6195 window,
6196 cx,
6197 )
6198 }
6199
6200 for line_element in &mut layout.line_elements {
6201 line_element.paint(window, cx);
6202 }
6203 }
6204
6205 fn paint_lines_background(
6206 &mut self,
6207 layout: &mut EditorLayout,
6208 window: &mut Window,
6209 cx: &mut App,
6210 ) {
6211 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6212 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6213 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
6214 }
6215 }
6216
6217 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
6218 if layout.redacted_ranges.is_empty() {
6219 return;
6220 }
6221
6222 let line_end_overshoot = layout.line_end_overshoot();
6223
6224 // A softer than perfect black
6225 let redaction_color = gpui::rgb(0x0e1111);
6226
6227 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6228 for range in layout.redacted_ranges.iter() {
6229 self.paint_highlighted_range(
6230 range.clone(),
6231 true,
6232 redaction_color.into(),
6233 Pixels::ZERO,
6234 line_end_overshoot,
6235 layout,
6236 window,
6237 );
6238 }
6239 });
6240 }
6241
6242 fn paint_document_colors(&self, layout: &mut EditorLayout, window: &mut Window) {
6243 let Some((colors_render_mode, image_colors)) = &layout.document_colors else {
6244 return;
6245 };
6246 if image_colors.is_empty()
6247 || colors_render_mode == &DocumentColorsRenderMode::None
6248 || colors_render_mode == &DocumentColorsRenderMode::Inlay
6249 {
6250 return;
6251 }
6252
6253 let line_end_overshoot = layout.line_end_overshoot();
6254
6255 for (range, color) in image_colors {
6256 match colors_render_mode {
6257 DocumentColorsRenderMode::Inlay | DocumentColorsRenderMode::None => return,
6258 DocumentColorsRenderMode::Background => {
6259 self.paint_highlighted_range(
6260 range.clone(),
6261 true,
6262 *color,
6263 Pixels::ZERO,
6264 line_end_overshoot,
6265 layout,
6266 window,
6267 );
6268 }
6269 DocumentColorsRenderMode::Border => {
6270 self.paint_highlighted_range(
6271 range.clone(),
6272 false,
6273 *color,
6274 Pixels::ZERO,
6275 line_end_overshoot,
6276 layout,
6277 window,
6278 );
6279 }
6280 }
6281 }
6282 }
6283
6284 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6285 for cursor in &mut layout.visible_cursors {
6286 cursor.paint(layout.content_origin, window, cx);
6287 }
6288 }
6289
6290 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6291 let Some(scrollbars_layout) = layout.scrollbars_layout.take() else {
6292 return;
6293 };
6294 let any_scrollbar_dragged = self.editor.read(cx).scroll_manager.any_scrollbar_dragged();
6295
6296 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
6297 let hitbox = &scrollbar_layout.hitbox;
6298 if scrollbars_layout.visible {
6299 let scrollbar_edges = match axis {
6300 ScrollbarAxis::Horizontal => Edges {
6301 top: Pixels::ZERO,
6302 right: Pixels::ZERO,
6303 bottom: Pixels::ZERO,
6304 left: Pixels::ZERO,
6305 },
6306 ScrollbarAxis::Vertical => Edges {
6307 top: Pixels::ZERO,
6308 right: Pixels::ZERO,
6309 bottom: Pixels::ZERO,
6310 left: ScrollbarLayout::BORDER_WIDTH,
6311 },
6312 };
6313
6314 window.paint_layer(hitbox.bounds, |window| {
6315 window.paint_quad(quad(
6316 hitbox.bounds,
6317 Corners::default(),
6318 cx.theme().colors().scrollbar_track_background,
6319 scrollbar_edges,
6320 cx.theme().colors().scrollbar_track_border,
6321 BorderStyle::Solid,
6322 ));
6323
6324 if axis == ScrollbarAxis::Vertical {
6325 let fast_markers =
6326 self.collect_fast_scrollbar_markers(layout, scrollbar_layout, cx);
6327 // Refresh slow scrollbar markers in the background. Below, we
6328 // paint whatever markers have already been computed.
6329 self.refresh_slow_scrollbar_markers(layout, scrollbar_layout, window, cx);
6330
6331 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
6332 for marker in markers.iter().chain(&fast_markers) {
6333 let mut marker = marker.clone();
6334 marker.bounds.origin += hitbox.origin;
6335 window.paint_quad(marker);
6336 }
6337 }
6338
6339 if let Some(thumb_bounds) = scrollbar_layout.thumb_bounds {
6340 let scrollbar_thumb_color = match scrollbar_layout.thumb_state {
6341 ScrollbarThumbState::Dragging => {
6342 cx.theme().colors().scrollbar_thumb_active_background
6343 }
6344 ScrollbarThumbState::Hovered => {
6345 cx.theme().colors().scrollbar_thumb_hover_background
6346 }
6347 ScrollbarThumbState::Idle => {
6348 cx.theme().colors().scrollbar_thumb_background
6349 }
6350 };
6351 window.paint_quad(quad(
6352 thumb_bounds,
6353 Corners::default(),
6354 scrollbar_thumb_color,
6355 scrollbar_edges,
6356 cx.theme().colors().scrollbar_thumb_border,
6357 BorderStyle::Solid,
6358 ));
6359
6360 if any_scrollbar_dragged {
6361 window.set_window_cursor_style(CursorStyle::Arrow);
6362 } else {
6363 window.set_cursor_style(CursorStyle::Arrow, hitbox);
6364 }
6365 }
6366 })
6367 }
6368 }
6369
6370 window.on_mouse_event({
6371 let editor = self.editor.clone();
6372 let scrollbars_layout = scrollbars_layout.clone();
6373
6374 let mut mouse_position = window.mouse_position();
6375 move |event: &MouseMoveEvent, phase, window, cx| {
6376 if phase == DispatchPhase::Capture {
6377 return;
6378 }
6379
6380 editor.update(cx, |editor, cx| {
6381 if let Some((scrollbar_layout, axis)) = event
6382 .pressed_button
6383 .filter(|button| *button == MouseButton::Left)
6384 .and(editor.scroll_manager.dragging_scrollbar_axis())
6385 .and_then(|axis| {
6386 scrollbars_layout
6387 .iter_scrollbars()
6388 .find(|(_, a)| *a == axis)
6389 })
6390 {
6391 let ScrollbarLayout {
6392 hitbox,
6393 text_unit_size,
6394 ..
6395 } = scrollbar_layout;
6396
6397 let old_position = mouse_position.along(axis);
6398 let new_position = event.position.along(axis);
6399 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
6400 .contains(&old_position)
6401 {
6402 let position = editor.scroll_position(cx).apply_along(axis, |p| {
6403 (p + (new_position - old_position) / *text_unit_size).max(0.)
6404 });
6405 editor.set_scroll_position(position, window, cx);
6406 }
6407
6408 editor.scroll_manager.show_scrollbars(window, cx);
6409 cx.stop_propagation();
6410 } else if let Some((layout, axis)) = scrollbars_layout
6411 .get_hovered_axis(window)
6412 .filter(|_| !event.dragging())
6413 {
6414 if layout.thumb_hovered(&event.position) {
6415 editor
6416 .scroll_manager
6417 .set_hovered_scroll_thumb_axis(axis, cx);
6418 } else {
6419 editor.scroll_manager.reset_scrollbar_state(cx);
6420 }
6421
6422 editor.scroll_manager.show_scrollbars(window, cx);
6423 } else {
6424 editor.scroll_manager.reset_scrollbar_state(cx);
6425 }
6426
6427 mouse_position = event.position;
6428 })
6429 }
6430 });
6431
6432 if any_scrollbar_dragged {
6433 window.on_mouse_event({
6434 let editor = self.editor.clone();
6435 move |_: &MouseUpEvent, phase, window, cx| {
6436 if phase == DispatchPhase::Capture {
6437 return;
6438 }
6439
6440 editor.update(cx, |editor, cx| {
6441 if let Some((_, axis)) = scrollbars_layout.get_hovered_axis(window) {
6442 editor
6443 .scroll_manager
6444 .set_hovered_scroll_thumb_axis(axis, cx);
6445 } else {
6446 editor.scroll_manager.reset_scrollbar_state(cx);
6447 }
6448 cx.stop_propagation();
6449 });
6450 }
6451 });
6452 } else {
6453 window.on_mouse_event({
6454 let editor = self.editor.clone();
6455
6456 move |event: &MouseDownEvent, phase, window, cx| {
6457 if phase == DispatchPhase::Capture {
6458 return;
6459 }
6460 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
6461 else {
6462 return;
6463 };
6464
6465 let ScrollbarLayout {
6466 hitbox,
6467 visible_range,
6468 text_unit_size,
6469 thumb_bounds,
6470 ..
6471 } = scrollbar_layout;
6472
6473 let Some(thumb_bounds) = thumb_bounds else {
6474 return;
6475 };
6476
6477 editor.update(cx, |editor, cx| {
6478 editor
6479 .scroll_manager
6480 .set_dragged_scroll_thumb_axis(axis, cx);
6481
6482 let event_position = event.position.along(axis);
6483
6484 if event_position < thumb_bounds.origin.along(axis)
6485 || thumb_bounds.bottom_right().along(axis) < event_position
6486 {
6487 let center_position = ((event_position - hitbox.origin.along(axis))
6488 / *text_unit_size)
6489 .round() as u32;
6490 let start_position = center_position.saturating_sub(
6491 (visible_range.end - visible_range.start) as u32 / 2,
6492 );
6493
6494 let position = editor
6495 .scroll_position(cx)
6496 .apply_along(axis, |_| start_position as f32);
6497
6498 editor.set_scroll_position(position, window, cx);
6499 } else {
6500 editor.scroll_manager.show_scrollbars(window, cx);
6501 }
6502
6503 cx.stop_propagation();
6504 });
6505 }
6506 });
6507 }
6508 }
6509
6510 fn collect_fast_scrollbar_markers(
6511 &self,
6512 layout: &EditorLayout,
6513 scrollbar_layout: &ScrollbarLayout,
6514 cx: &mut App,
6515 ) -> Vec<PaintQuad> {
6516 const LIMIT: usize = 100;
6517 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
6518 return vec![];
6519 }
6520 let cursor_ranges = layout
6521 .cursors
6522 .iter()
6523 .map(|(point, color)| ColoredRange {
6524 start: point.row(),
6525 end: point.row(),
6526 color: *color,
6527 })
6528 .collect_vec();
6529 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
6530 }
6531
6532 fn refresh_slow_scrollbar_markers(
6533 &self,
6534 layout: &EditorLayout,
6535 scrollbar_layout: &ScrollbarLayout,
6536 window: &mut Window,
6537 cx: &mut App,
6538 ) {
6539 self.editor.update(cx, |editor, cx| {
6540 if !editor.is_singleton(cx)
6541 || !editor
6542 .scrollbar_marker_state
6543 .should_refresh(scrollbar_layout.hitbox.size)
6544 {
6545 return;
6546 }
6547
6548 let scrollbar_layout = scrollbar_layout.clone();
6549 let background_highlights = editor.background_highlights.clone();
6550 let snapshot = layout.position_map.snapshot.clone();
6551 let theme = cx.theme().clone();
6552 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
6553
6554 editor.scrollbar_marker_state.dirty = false;
6555 editor.scrollbar_marker_state.pending_refresh =
6556 Some(cx.spawn_in(window, async move |editor, cx| {
6557 let scrollbar_size = scrollbar_layout.hitbox.size;
6558 let scrollbar_markers = cx
6559 .background_spawn(async move {
6560 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
6561 let mut marker_quads = Vec::new();
6562 if scrollbar_settings.git_diff {
6563 let marker_row_ranges =
6564 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
6565 let start_display_row =
6566 MultiBufferPoint::new(hunk.row_range.start.0, 0)
6567 .to_display_point(&snapshot.display_snapshot)
6568 .row();
6569 let mut end_display_row =
6570 MultiBufferPoint::new(hunk.row_range.end.0, 0)
6571 .to_display_point(&snapshot.display_snapshot)
6572 .row();
6573 if end_display_row != start_display_row {
6574 end_display_row.0 -= 1;
6575 }
6576 let color = match &hunk.status().kind {
6577 DiffHunkStatusKind::Added => {
6578 theme.colors().version_control_added
6579 }
6580 DiffHunkStatusKind::Modified => {
6581 theme.colors().version_control_modified
6582 }
6583 DiffHunkStatusKind::Deleted => {
6584 theme.colors().version_control_deleted
6585 }
6586 };
6587 ColoredRange {
6588 start: start_display_row,
6589 end: end_display_row,
6590 color,
6591 }
6592 });
6593
6594 marker_quads.extend(
6595 scrollbar_layout
6596 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
6597 );
6598 }
6599
6600 for (background_highlight_id, (_, background_ranges)) in
6601 background_highlights.iter()
6602 {
6603 let is_search_highlights = *background_highlight_id
6604 == HighlightKey::Type(TypeId::of::<BufferSearchHighlights>());
6605 let is_text_highlights = *background_highlight_id
6606 == HighlightKey::Type(TypeId::of::<SelectedTextHighlight>());
6607 let is_symbol_occurrences = *background_highlight_id
6608 == HighlightKey::Type(TypeId::of::<DocumentHighlightRead>())
6609 || *background_highlight_id
6610 == HighlightKey::Type(
6611 TypeId::of::<DocumentHighlightWrite>(),
6612 );
6613 if (is_search_highlights && scrollbar_settings.search_results)
6614 || (is_text_highlights && scrollbar_settings.selected_text)
6615 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
6616 {
6617 let mut color = theme.status().info;
6618 if is_symbol_occurrences {
6619 color.fade_out(0.5);
6620 }
6621 let marker_row_ranges = background_ranges.iter().map(|range| {
6622 let display_start = range
6623 .start
6624 .to_display_point(&snapshot.display_snapshot);
6625 let display_end =
6626 range.end.to_display_point(&snapshot.display_snapshot);
6627 ColoredRange {
6628 start: display_start.row(),
6629 end: display_end.row(),
6630 color,
6631 }
6632 });
6633 marker_quads.extend(
6634 scrollbar_layout
6635 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
6636 );
6637 }
6638 }
6639
6640 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
6641 let diagnostics = snapshot
6642 .buffer_snapshot
6643 .diagnostics_in_range::<Point>(Point::zero()..max_point)
6644 // Don't show diagnostics the user doesn't care about
6645 .filter(|diagnostic| {
6646 match (
6647 scrollbar_settings.diagnostics,
6648 diagnostic.diagnostic.severity,
6649 ) {
6650 (ScrollbarDiagnostics::All, _) => true,
6651 (
6652 ScrollbarDiagnostics::Error,
6653 lsp::DiagnosticSeverity::ERROR,
6654 ) => true,
6655 (
6656 ScrollbarDiagnostics::Warning,
6657 lsp::DiagnosticSeverity::ERROR
6658 | lsp::DiagnosticSeverity::WARNING,
6659 ) => true,
6660 (
6661 ScrollbarDiagnostics::Information,
6662 lsp::DiagnosticSeverity::ERROR
6663 | lsp::DiagnosticSeverity::WARNING
6664 | lsp::DiagnosticSeverity::INFORMATION,
6665 ) => true,
6666 (_, _) => false,
6667 }
6668 })
6669 // We want to sort by severity, in order to paint the most severe diagnostics last.
6670 .sorted_by_key(|diagnostic| {
6671 std::cmp::Reverse(diagnostic.diagnostic.severity)
6672 });
6673
6674 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
6675 let start_display = diagnostic
6676 .range
6677 .start
6678 .to_display_point(&snapshot.display_snapshot);
6679 let end_display = diagnostic
6680 .range
6681 .end
6682 .to_display_point(&snapshot.display_snapshot);
6683 let color = match diagnostic.diagnostic.severity {
6684 lsp::DiagnosticSeverity::ERROR => theme.status().error,
6685 lsp::DiagnosticSeverity::WARNING => theme.status().warning,
6686 lsp::DiagnosticSeverity::INFORMATION => theme.status().info,
6687 _ => theme.status().hint,
6688 };
6689 ColoredRange {
6690 start: start_display.row(),
6691 end: end_display.row(),
6692 color,
6693 }
6694 });
6695 marker_quads.extend(
6696 scrollbar_layout
6697 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
6698 );
6699 }
6700
6701 Arc::from(marker_quads)
6702 })
6703 .await;
6704
6705 editor.update(cx, |editor, cx| {
6706 editor.scrollbar_marker_state.markers = scrollbar_markers;
6707 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
6708 editor.scrollbar_marker_state.pending_refresh = None;
6709 cx.notify();
6710 })?;
6711
6712 Ok(())
6713 }));
6714 });
6715 }
6716
6717 fn paint_highlighted_range(
6718 &self,
6719 range: Range<DisplayPoint>,
6720 fill: bool,
6721 color: Hsla,
6722 corner_radius: Pixels,
6723 line_end_overshoot: Pixels,
6724 layout: &EditorLayout,
6725 window: &mut Window,
6726 ) {
6727 let start_row = layout.visible_display_row_range.start;
6728 let end_row = layout.visible_display_row_range.end;
6729 if range.start != range.end {
6730 let row_range = if range.end.column() == 0 {
6731 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
6732 } else {
6733 cmp::max(range.start.row(), start_row)
6734 ..cmp::min(range.end.row().next_row(), end_row)
6735 };
6736
6737 let highlighted_range = HighlightedRange {
6738 color,
6739 line_height: layout.position_map.line_height,
6740 corner_radius,
6741 start_y: layout.content_origin.y
6742 + row_range.start.as_f32() * layout.position_map.line_height
6743 - layout.position_map.scroll_pixel_position.y,
6744 lines: row_range
6745 .iter_rows()
6746 .map(|row| {
6747 let line_layout =
6748 &layout.position_map.line_layouts[row.minus(start_row) as usize];
6749 HighlightedRangeLine {
6750 start_x: if row == range.start.row() {
6751 layout.content_origin.x
6752 + line_layout.x_for_index(range.start.column() as usize)
6753 - layout.position_map.scroll_pixel_position.x
6754 } else {
6755 layout.content_origin.x
6756 - layout.position_map.scroll_pixel_position.x
6757 },
6758 end_x: if row == range.end.row() {
6759 layout.content_origin.x
6760 + line_layout.x_for_index(range.end.column() as usize)
6761 - layout.position_map.scroll_pixel_position.x
6762 } else {
6763 layout.content_origin.x + line_layout.width + line_end_overshoot
6764 - layout.position_map.scroll_pixel_position.x
6765 },
6766 }
6767 })
6768 .collect(),
6769 };
6770
6771 highlighted_range.paint(fill, layout.position_map.text_hitbox.bounds, window);
6772 }
6773 }
6774
6775 fn paint_inline_diagnostics(
6776 &mut self,
6777 layout: &mut EditorLayout,
6778 window: &mut Window,
6779 cx: &mut App,
6780 ) {
6781 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
6782 inline_diagnostic.1.paint(window, cx);
6783 }
6784 }
6785
6786 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6787 if let Some(mut blame_layout) = layout.inline_blame_layout.take() {
6788 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6789 blame_layout.element.paint(window, cx);
6790 })
6791 }
6792 }
6793
6794 fn paint_inline_code_actions(
6795 &mut self,
6796 layout: &mut EditorLayout,
6797 window: &mut Window,
6798 cx: &mut App,
6799 ) {
6800 if let Some(mut inline_code_actions) = layout.inline_code_actions.take() {
6801 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6802 inline_code_actions.paint(window, cx);
6803 })
6804 }
6805 }
6806
6807 fn paint_diff_hunk_controls(
6808 &mut self,
6809 layout: &mut EditorLayout,
6810 window: &mut Window,
6811 cx: &mut App,
6812 ) {
6813 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
6814 diff_hunk_control.paint(window, cx);
6815 }
6816 }
6817
6818 fn paint_minimap(&self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6819 if let Some(mut layout) = layout.minimap.take() {
6820 let minimap_hitbox = layout.thumb_layout.hitbox.clone();
6821 let dragging_minimap = self.editor.read(cx).scroll_manager.is_dragging_minimap();
6822
6823 window.paint_layer(layout.thumb_layout.hitbox.bounds, |window| {
6824 window.with_element_namespace("minimap", |window| {
6825 layout.minimap.paint(window, cx);
6826 if let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds {
6827 let minimap_thumb_color = match layout.thumb_layout.thumb_state {
6828 ScrollbarThumbState::Idle => {
6829 cx.theme().colors().minimap_thumb_background
6830 }
6831 ScrollbarThumbState::Hovered => {
6832 cx.theme().colors().minimap_thumb_hover_background
6833 }
6834 ScrollbarThumbState::Dragging => {
6835 cx.theme().colors().minimap_thumb_active_background
6836 }
6837 };
6838 let minimap_thumb_border = match layout.thumb_border_style {
6839 MinimapThumbBorder::Full => Edges::all(ScrollbarLayout::BORDER_WIDTH),
6840 MinimapThumbBorder::LeftOnly => Edges {
6841 left: ScrollbarLayout::BORDER_WIDTH,
6842 ..Default::default()
6843 },
6844 MinimapThumbBorder::LeftOpen => Edges {
6845 right: ScrollbarLayout::BORDER_WIDTH,
6846 top: ScrollbarLayout::BORDER_WIDTH,
6847 bottom: ScrollbarLayout::BORDER_WIDTH,
6848 ..Default::default()
6849 },
6850 MinimapThumbBorder::RightOpen => Edges {
6851 left: ScrollbarLayout::BORDER_WIDTH,
6852 top: ScrollbarLayout::BORDER_WIDTH,
6853 bottom: ScrollbarLayout::BORDER_WIDTH,
6854 ..Default::default()
6855 },
6856 MinimapThumbBorder::None => Default::default(),
6857 };
6858
6859 window.paint_layer(minimap_hitbox.bounds, |window| {
6860 window.paint_quad(quad(
6861 thumb_bounds,
6862 Corners::default(),
6863 minimap_thumb_color,
6864 minimap_thumb_border,
6865 cx.theme().colors().minimap_thumb_border,
6866 BorderStyle::Solid,
6867 ));
6868 });
6869 }
6870 });
6871 });
6872
6873 if dragging_minimap {
6874 window.set_window_cursor_style(CursorStyle::Arrow);
6875 } else {
6876 window.set_cursor_style(CursorStyle::Arrow, &minimap_hitbox);
6877 }
6878
6879 let minimap_axis = ScrollbarAxis::Vertical;
6880 let pixels_per_line = (minimap_hitbox.size.height / layout.max_scroll_top)
6881 .min(layout.minimap_line_height);
6882
6883 let mut mouse_position = window.mouse_position();
6884
6885 window.on_mouse_event({
6886 let editor = self.editor.clone();
6887
6888 let minimap_hitbox = minimap_hitbox.clone();
6889
6890 move |event: &MouseMoveEvent, phase, window, cx| {
6891 if phase == DispatchPhase::Capture {
6892 return;
6893 }
6894
6895 editor.update(cx, |editor, cx| {
6896 if event.pressed_button == Some(MouseButton::Left)
6897 && editor.scroll_manager.is_dragging_minimap()
6898 {
6899 let old_position = mouse_position.along(minimap_axis);
6900 let new_position = event.position.along(minimap_axis);
6901 if (minimap_hitbox.origin.along(minimap_axis)
6902 ..minimap_hitbox.bottom_right().along(minimap_axis))
6903 .contains(&old_position)
6904 {
6905 let position =
6906 editor.scroll_position(cx).apply_along(minimap_axis, |p| {
6907 (p + (new_position - old_position) / pixels_per_line)
6908 .max(0.)
6909 });
6910 editor.set_scroll_position(position, window, cx);
6911 }
6912 cx.stop_propagation();
6913 } else if minimap_hitbox.is_hovered(window) {
6914 editor.scroll_manager.set_is_hovering_minimap_thumb(
6915 !event.dragging()
6916 && layout
6917 .thumb_layout
6918 .thumb_bounds
6919 .is_some_and(|bounds| bounds.contains(&event.position)),
6920 cx,
6921 );
6922
6923 // Stop hover events from propagating to the
6924 // underlying editor if the minimap hitbox is hovered
6925 if !event.dragging() {
6926 cx.stop_propagation();
6927 }
6928 } else {
6929 editor.scroll_manager.hide_minimap_thumb(cx);
6930 }
6931 mouse_position = event.position;
6932 });
6933 }
6934 });
6935
6936 if dragging_minimap {
6937 window.on_mouse_event({
6938 let editor = self.editor.clone();
6939 move |event: &MouseUpEvent, phase, window, cx| {
6940 if phase == DispatchPhase::Capture {
6941 return;
6942 }
6943
6944 editor.update(cx, |editor, cx| {
6945 if minimap_hitbox.is_hovered(window) {
6946 editor.scroll_manager.set_is_hovering_minimap_thumb(
6947 layout
6948 .thumb_layout
6949 .thumb_bounds
6950 .is_some_and(|bounds| bounds.contains(&event.position)),
6951 cx,
6952 );
6953 } else {
6954 editor.scroll_manager.hide_minimap_thumb(cx);
6955 }
6956 cx.stop_propagation();
6957 });
6958 }
6959 });
6960 } else {
6961 window.on_mouse_event({
6962 let editor = self.editor.clone();
6963
6964 move |event: &MouseDownEvent, phase, window, cx| {
6965 if phase == DispatchPhase::Capture || !minimap_hitbox.is_hovered(window) {
6966 return;
6967 }
6968
6969 let event_position = event.position;
6970
6971 let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds else {
6972 return;
6973 };
6974
6975 editor.update(cx, |editor, cx| {
6976 if !thumb_bounds.contains(&event_position) {
6977 let click_position =
6978 event_position.relative_to(&minimap_hitbox.origin).y;
6979
6980 let top_position = (click_position
6981 - thumb_bounds.size.along(minimap_axis) / 2.0)
6982 .max(Pixels::ZERO);
6983
6984 let scroll_offset = (layout.minimap_scroll_top
6985 + top_position / layout.minimap_line_height)
6986 .min(layout.max_scroll_top);
6987
6988 let scroll_position = editor
6989 .scroll_position(cx)
6990 .apply_along(minimap_axis, |_| scroll_offset);
6991 editor.set_scroll_position(scroll_position, window, cx);
6992 }
6993
6994 editor.scroll_manager.set_is_dragging_minimap(cx);
6995 cx.stop_propagation();
6996 });
6997 }
6998 });
6999 }
7000 }
7001 }
7002
7003 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7004 for mut block in layout.blocks.drain(..) {
7005 if block.overlaps_gutter {
7006 block.element.paint(window, cx);
7007 } else {
7008 let mut bounds = layout.hitbox.bounds;
7009 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
7010 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7011 block.element.paint(window, cx);
7012 })
7013 }
7014 }
7015 }
7016
7017 fn paint_edit_prediction_popover(
7018 &mut self,
7019 layout: &mut EditorLayout,
7020 window: &mut Window,
7021 cx: &mut App,
7022 ) {
7023 if let Some(edit_prediction_popover) = layout.edit_prediction_popover.as_mut() {
7024 edit_prediction_popover.paint(window, cx);
7025 }
7026 }
7027
7028 fn paint_mouse_context_menu(
7029 &mut self,
7030 layout: &mut EditorLayout,
7031 window: &mut Window,
7032 cx: &mut App,
7033 ) {
7034 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
7035 mouse_context_menu.paint(window, cx);
7036 }
7037 }
7038
7039 fn paint_scroll_wheel_listener(
7040 &mut self,
7041 layout: &EditorLayout,
7042 window: &mut Window,
7043 cx: &mut App,
7044 ) {
7045 window.on_mouse_event({
7046 let position_map = layout.position_map.clone();
7047 let editor = self.editor.clone();
7048 let hitbox = layout.hitbox.clone();
7049 let mut delta = ScrollDelta::default();
7050
7051 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
7052 // accidentally turn off their scrolling.
7053 let base_scroll_sensitivity =
7054 EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
7055
7056 // Use a minimum fast_scroll_sensitivity for same reason above
7057 let fast_scroll_sensitivity = EditorSettings::get_global(cx)
7058 .fast_scroll_sensitivity
7059 .max(0.01);
7060
7061 move |event: &ScrollWheelEvent, phase, window, cx| {
7062 let scroll_sensitivity = {
7063 if event.modifiers.alt {
7064 fast_scroll_sensitivity
7065 } else {
7066 base_scroll_sensitivity
7067 }
7068 };
7069
7070 if phase == DispatchPhase::Bubble && hitbox.should_handle_scroll(window) {
7071 delta = delta.coalesce(event.delta);
7072 editor.update(cx, |editor, cx| {
7073 let position_map: &PositionMap = &position_map;
7074
7075 let line_height = position_map.line_height;
7076 let max_glyph_advance = position_map.em_advance;
7077 let (delta, axis) = match delta {
7078 gpui::ScrollDelta::Pixels(mut pixels) => {
7079 //Trackpad
7080 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
7081 (pixels, axis)
7082 }
7083
7084 gpui::ScrollDelta::Lines(lines) => {
7085 //Not trackpad
7086 let pixels =
7087 point(lines.x * max_glyph_advance, lines.y * line_height);
7088 (pixels, None)
7089 }
7090 };
7091
7092 let current_scroll_position = position_map.snapshot.scroll_position();
7093 let x = (current_scroll_position.x * max_glyph_advance
7094 - (delta.x * scroll_sensitivity))
7095 / max_glyph_advance;
7096 let y = (current_scroll_position.y * line_height
7097 - (delta.y * scroll_sensitivity))
7098 / line_height;
7099 let mut scroll_position =
7100 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
7101 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
7102 if forbid_vertical_scroll {
7103 scroll_position.y = current_scroll_position.y;
7104 }
7105
7106 if scroll_position != current_scroll_position {
7107 editor.scroll(scroll_position, axis, window, cx);
7108 cx.stop_propagation();
7109 } else if y < 0. {
7110 // Due to clamping, we may fail to detect cases of overscroll to the top;
7111 // We want the scroll manager to get an update in such cases and detect the change of direction
7112 // on the next frame.
7113 cx.notify();
7114 }
7115 });
7116 }
7117 }
7118 });
7119 }
7120
7121 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
7122 if layout.mode.is_minimap() {
7123 return;
7124 }
7125
7126 self.paint_scroll_wheel_listener(layout, window, cx);
7127
7128 window.on_mouse_event({
7129 let position_map = layout.position_map.clone();
7130 let editor = self.editor.clone();
7131 let diff_hunk_range =
7132 layout
7133 .display_hunks
7134 .iter()
7135 .find_map(|(hunk, hunk_hitbox)| match hunk {
7136 DisplayDiffHunk::Folded { .. } => None,
7137 DisplayDiffHunk::Unfolded {
7138 multi_buffer_range, ..
7139 } => {
7140 if hunk_hitbox
7141 .as_ref()
7142 .map(|hitbox| hitbox.is_hovered(window))
7143 .unwrap_or(false)
7144 {
7145 Some(multi_buffer_range.clone())
7146 } else {
7147 None
7148 }
7149 }
7150 });
7151 let line_numbers = layout.line_numbers.clone();
7152
7153 move |event: &MouseDownEvent, phase, window, cx| {
7154 if phase == DispatchPhase::Bubble {
7155 match event.button {
7156 MouseButton::Left => editor.update(cx, |editor, cx| {
7157 let pending_mouse_down = editor
7158 .pending_mouse_down
7159 .get_or_insert_with(Default::default)
7160 .clone();
7161
7162 *pending_mouse_down.borrow_mut() = Some(event.clone());
7163
7164 Self::mouse_left_down(
7165 editor,
7166 event,
7167 diff_hunk_range.clone(),
7168 &position_map,
7169 line_numbers.as_ref(),
7170 window,
7171 cx,
7172 );
7173 }),
7174 MouseButton::Right => editor.update(cx, |editor, cx| {
7175 Self::mouse_right_down(editor, event, &position_map, window, cx);
7176 }),
7177 MouseButton::Middle => editor.update(cx, |editor, cx| {
7178 Self::mouse_middle_down(editor, event, &position_map, window, cx);
7179 }),
7180 _ => {}
7181 };
7182 }
7183 }
7184 });
7185
7186 window.on_mouse_event({
7187 let editor = self.editor.clone();
7188 let position_map = layout.position_map.clone();
7189
7190 move |event: &MouseUpEvent, phase, window, cx| {
7191 if phase == DispatchPhase::Bubble {
7192 editor.update(cx, |editor, cx| {
7193 Self::mouse_up(editor, event, &position_map, window, cx)
7194 });
7195 }
7196 }
7197 });
7198
7199 window.on_mouse_event({
7200 let editor = self.editor.clone();
7201 let position_map = layout.position_map.clone();
7202 let mut captured_mouse_down = None;
7203
7204 move |event: &MouseUpEvent, phase, window, cx| match phase {
7205 // Clear the pending mouse down during the capture phase,
7206 // so that it happens even if another event handler stops
7207 // propagation.
7208 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
7209 let pending_mouse_down = editor
7210 .pending_mouse_down
7211 .get_or_insert_with(Default::default)
7212 .clone();
7213
7214 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
7215 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
7216 captured_mouse_down = pending_mouse_down.take();
7217 window.refresh();
7218 }
7219 }),
7220 // Fire click handlers during the bubble phase.
7221 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
7222 if let Some(mouse_down) = captured_mouse_down.take() {
7223 let event = ClickEvent::Mouse(MouseClickEvent {
7224 down: mouse_down,
7225 up: event.clone(),
7226 });
7227 Self::click(editor, &event, &position_map, window, cx);
7228 }
7229 }),
7230 }
7231 });
7232
7233 window.on_mouse_event({
7234 let position_map = layout.position_map.clone();
7235 let editor = self.editor.clone();
7236
7237 move |event: &MouseMoveEvent, phase, window, cx| {
7238 if phase == DispatchPhase::Bubble {
7239 editor.update(cx, |editor, cx| {
7240 if editor.hover_state.focused(window, cx) {
7241 return;
7242 }
7243 if event.pressed_button == Some(MouseButton::Left)
7244 || event.pressed_button == Some(MouseButton::Middle)
7245 {
7246 Self::mouse_dragged(editor, event, &position_map, window, cx)
7247 }
7248
7249 Self::mouse_moved(editor, event, &position_map, window, cx)
7250 });
7251 }
7252 }
7253 });
7254 }
7255
7256 fn column_pixels(&self, column: usize, window: &Window) -> Pixels {
7257 let style = &self.style;
7258 let font_size = style.text.font_size.to_pixels(window.rem_size());
7259 let layout = window.text_system().shape_line(
7260 SharedString::from(" ".repeat(column)),
7261 font_size,
7262 &[TextRun {
7263 len: column,
7264 font: style.text.font(),
7265 color: Hsla::default(),
7266 background_color: None,
7267 underline: None,
7268 strikethrough: None,
7269 }],
7270 None,
7271 );
7272
7273 layout.width
7274 }
7275
7276 fn max_line_number_width(&self, snapshot: &EditorSnapshot, window: &mut Window) -> Pixels {
7277 let digit_count = snapshot.widest_line_number().ilog10() + 1;
7278 self.column_pixels(digit_count as usize, window)
7279 }
7280
7281 fn shape_line_number(
7282 &self,
7283 text: SharedString,
7284 color: Hsla,
7285 window: &mut Window,
7286 ) -> ShapedLine {
7287 let run = TextRun {
7288 len: text.len(),
7289 font: self.style.text.font(),
7290 color,
7291 background_color: None,
7292 underline: None,
7293 strikethrough: None,
7294 };
7295 window.text_system().shape_line(
7296 text,
7297 self.style.text.font_size.to_pixels(window.rem_size()),
7298 &[run],
7299 None,
7300 )
7301 }
7302
7303 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
7304 let unstaged = status.has_secondary_hunk();
7305 let unstaged_hollow = matches!(
7306 ProjectSettings::get_global(cx).git.hunk_style,
7307 GitHunkStyleSetting::UnstagedHollow
7308 );
7309
7310 unstaged == unstaged_hollow
7311 }
7312
7313 #[cfg(debug_assertions)]
7314 fn layout_debug_ranges(
7315 selections: &mut Vec<(PlayerColor, Vec<SelectionLayout>)>,
7316 anchor_range: Range<Anchor>,
7317 display_snapshot: &DisplaySnapshot,
7318 cx: &App,
7319 ) {
7320 let theme = cx.theme();
7321 text::debug::GlobalDebugRanges::with_locked(|debug_ranges| {
7322 if debug_ranges.ranges.is_empty() {
7323 return;
7324 }
7325 let buffer_snapshot = &display_snapshot.buffer_snapshot;
7326 for (buffer, buffer_range, excerpt_id) in
7327 buffer_snapshot.range_to_buffer_ranges(anchor_range)
7328 {
7329 let buffer_range =
7330 buffer.anchor_after(buffer_range.start)..buffer.anchor_before(buffer_range.end);
7331 selections.extend(debug_ranges.ranges.iter().flat_map(|debug_range| {
7332 let player_color = theme
7333 .players()
7334 .color_for_participant(debug_range.occurrence_index as u32 + 1);
7335 debug_range.ranges.iter().filter_map(move |range| {
7336 if range.start.buffer_id != Some(buffer.remote_id()) {
7337 return None;
7338 }
7339 let clipped_start = range.start.max(&buffer_range.start, buffer);
7340 let clipped_end = range.end.min(&buffer_range.end, buffer);
7341 let range = buffer_snapshot.anchor_in_excerpt(excerpt_id, clipped_start)?
7342 ..buffer_snapshot.anchor_in_excerpt(excerpt_id, clipped_end)?;
7343 let start = range.start.to_display_point(display_snapshot);
7344 let end = range.end.to_display_point(display_snapshot);
7345 let selection_layout = SelectionLayout {
7346 head: start,
7347 range: start..end,
7348 cursor_shape: CursorShape::Bar,
7349 is_newest: false,
7350 is_local: false,
7351 active_rows: start.row()..end.row(),
7352 user_name: Some(SharedString::new(debug_range.value.clone())),
7353 };
7354 Some((player_color, vec![selection_layout]))
7355 })
7356 }));
7357 }
7358 });
7359 }
7360}
7361
7362fn header_jump_data(
7363 snapshot: &EditorSnapshot,
7364 block_row_start: DisplayRow,
7365 height: u32,
7366 for_excerpt: &ExcerptInfo,
7367) -> JumpData {
7368 let range = &for_excerpt.range;
7369 let buffer = &for_excerpt.buffer;
7370 let jump_anchor = range.primary.start;
7371
7372 let excerpt_start = range.context.start;
7373 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
7374 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
7375 0
7376 } else {
7377 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
7378 jump_position.row.saturating_sub(excerpt_start_point.row)
7379 };
7380
7381 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
7382 .saturating_sub(
7383 snapshot
7384 .scroll_anchor
7385 .scroll_position(&snapshot.display_snapshot)
7386 .y as u32,
7387 );
7388
7389 JumpData::MultiBufferPoint {
7390 excerpt_id: for_excerpt.id,
7391 anchor: jump_anchor,
7392 position: jump_position,
7393 line_offset_from_top,
7394 }
7395}
7396
7397pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
7398
7399impl AcceptEditPredictionBinding {
7400 pub fn keystroke(&self) -> Option<&KeybindingKeystroke> {
7401 if let Some(binding) = self.0.as_ref() {
7402 match &binding.keystrokes() {
7403 [keystroke, ..] => Some(keystroke),
7404 _ => None,
7405 }
7406 } else {
7407 None
7408 }
7409 }
7410}
7411
7412fn prepaint_gutter_button(
7413 button: IconButton,
7414 row: DisplayRow,
7415 line_height: Pixels,
7416 gutter_dimensions: &GutterDimensions,
7417 scroll_pixel_position: gpui::Point<Pixels>,
7418 gutter_hitbox: &Hitbox,
7419 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
7420 window: &mut Window,
7421 cx: &mut App,
7422) -> AnyElement {
7423 let mut button = button.into_any_element();
7424
7425 let available_space = size(
7426 AvailableSpace::MinContent,
7427 AvailableSpace::Definite(line_height),
7428 );
7429 let indicator_size = button.layout_as_root(available_space, window, cx);
7430
7431 let blame_width = gutter_dimensions.git_blame_entries_width;
7432 let gutter_width = display_hunks
7433 .binary_search_by(|(hunk, _)| match hunk {
7434 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
7435 DisplayDiffHunk::Unfolded {
7436 display_row_range, ..
7437 } => {
7438 if display_row_range.end <= row {
7439 Ordering::Less
7440 } else if display_row_range.start > row {
7441 Ordering::Greater
7442 } else {
7443 Ordering::Equal
7444 }
7445 }
7446 })
7447 .ok()
7448 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
7449 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
7450
7451 let mut x = left_offset;
7452 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
7453 - indicator_size.width
7454 - left_offset;
7455 x += available_width / 2.;
7456
7457 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
7458 y += (line_height - indicator_size.height) / 2.;
7459
7460 button.prepaint_as_root(
7461 gutter_hitbox.origin + point(x, y),
7462 available_space,
7463 window,
7464 cx,
7465 );
7466 button
7467}
7468
7469fn render_inline_blame_entry(
7470 blame_entry: BlameEntry,
7471 style: &EditorStyle,
7472 cx: &mut App,
7473) -> Option<AnyElement> {
7474 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
7475 renderer.render_inline_blame_entry(&style.text, blame_entry, cx)
7476}
7477
7478fn render_blame_entry_popover(
7479 blame_entry: BlameEntry,
7480 scroll_handle: ScrollHandle,
7481 commit_message: Option<ParsedCommitMessage>,
7482 markdown: Entity<Markdown>,
7483 workspace: WeakEntity<Workspace>,
7484 blame: &Entity<GitBlame>,
7485 buffer: BufferId,
7486 window: &mut Window,
7487 cx: &mut App,
7488) -> Option<AnyElement> {
7489 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
7490 let blame = blame.read(cx);
7491 let repository = blame.repository(cx, buffer)?;
7492 renderer.render_blame_entry_popover(
7493 blame_entry,
7494 scroll_handle,
7495 commit_message,
7496 markdown,
7497 repository,
7498 workspace,
7499 window,
7500 cx,
7501 )
7502}
7503
7504fn render_blame_entry(
7505 ix: usize,
7506 blame: &Entity<GitBlame>,
7507 blame_entry: BlameEntry,
7508 style: &EditorStyle,
7509 last_used_color: &mut Option<(PlayerColor, Oid)>,
7510 editor: Entity<Editor>,
7511 workspace: Entity<Workspace>,
7512 buffer: BufferId,
7513 renderer: Arc<dyn BlameRenderer>,
7514 cx: &mut App,
7515) -> Option<AnyElement> {
7516 let mut sha_color = cx
7517 .theme()
7518 .players()
7519 .color_for_participant(blame_entry.sha.into());
7520
7521 // If the last color we used is the same as the one we get for this line, but
7522 // the commit SHAs are different, then we try again to get a different color.
7523 match *last_used_color {
7524 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
7525 let index: u32 = blame_entry.sha.into();
7526 sha_color = cx.theme().players().color_for_participant(index + 1);
7527 }
7528 _ => {}
7529 };
7530 last_used_color.replace((sha_color, blame_entry.sha));
7531
7532 let blame = blame.read(cx);
7533 let details = blame.details_for_entry(buffer, &blame_entry);
7534 let repository = blame.repository(cx, buffer)?;
7535 renderer.render_blame_entry(
7536 &style.text,
7537 blame_entry,
7538 details,
7539 repository,
7540 workspace.downgrade(),
7541 editor,
7542 ix,
7543 sha_color.cursor,
7544 cx,
7545 )
7546}
7547
7548#[derive(Debug)]
7549pub(crate) struct LineWithInvisibles {
7550 fragments: SmallVec<[LineFragment; 1]>,
7551 invisibles: Vec<Invisible>,
7552 len: usize,
7553 pub(crate) width: Pixels,
7554 font_size: Pixels,
7555}
7556
7557enum LineFragment {
7558 Text(ShapedLine),
7559 Element {
7560 id: ChunkRendererId,
7561 element: Option<AnyElement>,
7562 size: Size<Pixels>,
7563 len: usize,
7564 },
7565}
7566
7567impl fmt::Debug for LineFragment {
7568 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
7569 match self {
7570 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
7571 LineFragment::Element { size, len, .. } => f
7572 .debug_struct("Element")
7573 .field("size", size)
7574 .field("len", len)
7575 .finish(),
7576 }
7577 }
7578}
7579
7580impl LineWithInvisibles {
7581 fn from_chunks<'a>(
7582 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
7583 editor_style: &EditorStyle,
7584 max_line_len: usize,
7585 max_line_count: usize,
7586 editor_mode: &EditorMode,
7587 text_width: Pixels,
7588 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
7589 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
7590 window: &mut Window,
7591 cx: &mut App,
7592 ) -> Vec<Self> {
7593 let text_style = &editor_style.text;
7594 let mut layouts = Vec::with_capacity(max_line_count);
7595 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
7596 let mut line = String::new();
7597 let mut invisibles = Vec::new();
7598 let mut width = Pixels::ZERO;
7599 let mut len = 0;
7600 let mut styles = Vec::new();
7601 let mut non_whitespace_added = false;
7602 let mut row = 0;
7603 let mut line_exceeded_max_len = false;
7604 let font_size = text_style.font_size.to_pixels(window.rem_size());
7605 let min_contrast = EditorSettings::get_global(cx).minimum_contrast_for_highlights;
7606
7607 let ellipsis = SharedString::from("β―");
7608
7609 for highlighted_chunk in chunks.chain([HighlightedChunk {
7610 text: "\n",
7611 style: None,
7612 is_tab: false,
7613 is_inlay: false,
7614 replacement: None,
7615 }]) {
7616 if let Some(replacement) = highlighted_chunk.replacement {
7617 if !line.is_empty() {
7618 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
7619 let text_runs: &[TextRun] = if segments.is_empty() {
7620 &styles
7621 } else {
7622 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
7623 };
7624 let shaped_line = window.text_system().shape_line(
7625 line.clone().into(),
7626 font_size,
7627 text_runs,
7628 None,
7629 );
7630 width += shaped_line.width;
7631 len += shaped_line.len;
7632 fragments.push(LineFragment::Text(shaped_line));
7633 line.clear();
7634 styles.clear();
7635 }
7636
7637 match replacement {
7638 ChunkReplacement::Renderer(renderer) => {
7639 let available_width = if renderer.constrain_width {
7640 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
7641 ellipsis.clone()
7642 } else {
7643 SharedString::from(Arc::from(highlighted_chunk.text))
7644 };
7645 let shaped_line = window.text_system().shape_line(
7646 chunk,
7647 font_size,
7648 &[text_style.to_run(highlighted_chunk.text.len())],
7649 None,
7650 );
7651 AvailableSpace::Definite(shaped_line.width)
7652 } else {
7653 AvailableSpace::MinContent
7654 };
7655
7656 let mut element = (renderer.render)(&mut ChunkRendererContext {
7657 context: cx,
7658 window,
7659 max_width: text_width,
7660 });
7661 let line_height = text_style.line_height_in_pixels(window.rem_size());
7662 let size = element.layout_as_root(
7663 size(available_width, AvailableSpace::Definite(line_height)),
7664 window,
7665 cx,
7666 );
7667
7668 width += size.width;
7669 len += highlighted_chunk.text.len();
7670 fragments.push(LineFragment::Element {
7671 id: renderer.id,
7672 element: Some(element),
7673 size,
7674 len: highlighted_chunk.text.len(),
7675 });
7676 }
7677 ChunkReplacement::Str(x) => {
7678 let text_style = if let Some(style) = highlighted_chunk.style {
7679 Cow::Owned(text_style.clone().highlight(style))
7680 } else {
7681 Cow::Borrowed(text_style)
7682 };
7683
7684 let run = TextRun {
7685 len: x.len(),
7686 font: text_style.font(),
7687 color: text_style.color,
7688 background_color: text_style.background_color,
7689 underline: text_style.underline,
7690 strikethrough: text_style.strikethrough,
7691 };
7692 let line_layout = window
7693 .text_system()
7694 .shape_line(x, font_size, &[run], None)
7695 .with_len(highlighted_chunk.text.len());
7696
7697 width += line_layout.width;
7698 len += highlighted_chunk.text.len();
7699 fragments.push(LineFragment::Text(line_layout))
7700 }
7701 }
7702 } else {
7703 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
7704 if ix > 0 {
7705 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
7706 let text_runs = if segments.is_empty() {
7707 &styles
7708 } else {
7709 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
7710 };
7711 let shaped_line = window.text_system().shape_line(
7712 line.clone().into(),
7713 font_size,
7714 text_runs,
7715 None,
7716 );
7717 width += shaped_line.width;
7718 len += shaped_line.len;
7719 fragments.push(LineFragment::Text(shaped_line));
7720 layouts.push(Self {
7721 width: mem::take(&mut width),
7722 len: mem::take(&mut len),
7723 fragments: mem::take(&mut fragments),
7724 invisibles: std::mem::take(&mut invisibles),
7725 font_size,
7726 });
7727
7728 line.clear();
7729 styles.clear();
7730 row += 1;
7731 line_exceeded_max_len = false;
7732 non_whitespace_added = false;
7733 if row == max_line_count {
7734 return layouts;
7735 }
7736 }
7737
7738 if !line_chunk.is_empty() && !line_exceeded_max_len {
7739 let text_style = if let Some(style) = highlighted_chunk.style {
7740 Cow::Owned(text_style.clone().highlight(style))
7741 } else {
7742 Cow::Borrowed(text_style)
7743 };
7744
7745 if line.len() + line_chunk.len() > max_line_len {
7746 let mut chunk_len = max_line_len - line.len();
7747 while !line_chunk.is_char_boundary(chunk_len) {
7748 chunk_len -= 1;
7749 }
7750 line_chunk = &line_chunk[..chunk_len];
7751 line_exceeded_max_len = true;
7752 }
7753
7754 styles.push(TextRun {
7755 len: line_chunk.len(),
7756 font: text_style.font(),
7757 color: text_style.color,
7758 background_color: text_style.background_color,
7759 underline: text_style.underline,
7760 strikethrough: text_style.strikethrough,
7761 });
7762
7763 if editor_mode.is_full() && !highlighted_chunk.is_inlay {
7764 // Line wrap pads its contents with fake whitespaces,
7765 // avoid printing them
7766 let is_soft_wrapped = is_row_soft_wrapped(row);
7767 if highlighted_chunk.is_tab {
7768 if non_whitespace_added || !is_soft_wrapped {
7769 invisibles.push(Invisible::Tab {
7770 line_start_offset: line.len(),
7771 line_end_offset: line.len() + line_chunk.len(),
7772 });
7773 }
7774 } else {
7775 invisibles.extend(line_chunk.char_indices().filter_map(
7776 |(index, c)| {
7777 let is_whitespace = c.is_whitespace();
7778 non_whitespace_added |= !is_whitespace;
7779 if is_whitespace
7780 && (non_whitespace_added || !is_soft_wrapped)
7781 {
7782 Some(Invisible::Whitespace {
7783 line_offset: line.len() + index,
7784 })
7785 } else {
7786 None
7787 }
7788 },
7789 ))
7790 }
7791 }
7792
7793 line.push_str(line_chunk);
7794 }
7795 }
7796 }
7797 }
7798
7799 layouts
7800 }
7801
7802 /// Takes text runs and non-overlapping left-to-right background ranges with color.
7803 /// Returns new text runs with adjusted contrast as per background ranges.
7804 fn split_runs_by_bg_segments(
7805 text_runs: &[TextRun],
7806 bg_segments: &[(Range<DisplayPoint>, Hsla)],
7807 min_contrast: f32,
7808 start_col_offset: usize,
7809 ) -> Vec<TextRun> {
7810 let mut output_runs: Vec<TextRun> = Vec::with_capacity(text_runs.len());
7811 let mut line_col = start_col_offset;
7812 let mut segment_ix = 0usize;
7813
7814 for text_run in text_runs.iter() {
7815 let run_start_col = line_col;
7816 let run_end_col = run_start_col + text_run.len;
7817 while segment_ix < bg_segments.len()
7818 && (bg_segments[segment_ix].0.end.column() as usize) <= run_start_col
7819 {
7820 segment_ix += 1;
7821 }
7822 let mut cursor_col = run_start_col;
7823 let mut local_segment_ix = segment_ix;
7824 while local_segment_ix < bg_segments.len() {
7825 let (range, segment_color) = &bg_segments[local_segment_ix];
7826 let segment_start_col = range.start.column() as usize;
7827 let segment_end_col = range.end.column() as usize;
7828 if segment_start_col >= run_end_col {
7829 break;
7830 }
7831 if segment_start_col > cursor_col {
7832 let span_len = segment_start_col - cursor_col;
7833 output_runs.push(TextRun {
7834 len: span_len,
7835 font: text_run.font.clone(),
7836 color: text_run.color,
7837 background_color: text_run.background_color,
7838 underline: text_run.underline,
7839 strikethrough: text_run.strikethrough,
7840 });
7841 cursor_col = segment_start_col;
7842 }
7843 let segment_slice_end_col = segment_end_col.min(run_end_col);
7844 if segment_slice_end_col > cursor_col {
7845 let new_text_color =
7846 ensure_minimum_contrast(text_run.color, *segment_color, min_contrast);
7847 output_runs.push(TextRun {
7848 len: segment_slice_end_col - cursor_col,
7849 font: text_run.font.clone(),
7850 color: new_text_color,
7851 background_color: text_run.background_color,
7852 underline: text_run.underline,
7853 strikethrough: text_run.strikethrough,
7854 });
7855 cursor_col = segment_slice_end_col;
7856 }
7857 if segment_end_col >= run_end_col {
7858 break;
7859 }
7860 local_segment_ix += 1;
7861 }
7862 if cursor_col < run_end_col {
7863 output_runs.push(TextRun {
7864 len: run_end_col - cursor_col,
7865 font: text_run.font.clone(),
7866 color: text_run.color,
7867 background_color: text_run.background_color,
7868 underline: text_run.underline,
7869 strikethrough: text_run.strikethrough,
7870 });
7871 }
7872 line_col = run_end_col;
7873 segment_ix = local_segment_ix;
7874 }
7875 output_runs
7876 }
7877
7878 fn prepaint(
7879 &mut self,
7880 line_height: Pixels,
7881 scroll_pixel_position: gpui::Point<Pixels>,
7882 row: DisplayRow,
7883 content_origin: gpui::Point<Pixels>,
7884 line_elements: &mut SmallVec<[AnyElement; 1]>,
7885 window: &mut Window,
7886 cx: &mut App,
7887 ) {
7888 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
7889 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
7890 for fragment in &mut self.fragments {
7891 match fragment {
7892 LineFragment::Text(line) => {
7893 fragment_origin.x += line.width;
7894 }
7895 LineFragment::Element { element, size, .. } => {
7896 let mut element = element
7897 .take()
7898 .expect("you can't prepaint LineWithInvisibles twice");
7899
7900 // Center the element vertically within the line.
7901 let mut element_origin = fragment_origin;
7902 element_origin.y += (line_height - size.height) / 2.;
7903 element.prepaint_at(element_origin, window, cx);
7904 line_elements.push(element);
7905
7906 fragment_origin.x += size.width;
7907 }
7908 }
7909 }
7910 }
7911
7912 fn draw(
7913 &self,
7914 layout: &EditorLayout,
7915 row: DisplayRow,
7916 content_origin: gpui::Point<Pixels>,
7917 whitespace_setting: ShowWhitespaceSetting,
7918 selection_ranges: &[Range<DisplayPoint>],
7919 window: &mut Window,
7920 cx: &mut App,
7921 ) {
7922 let line_height = layout.position_map.line_height;
7923 let line_y = line_height
7924 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
7925
7926 let mut fragment_origin =
7927 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
7928
7929 for fragment in &self.fragments {
7930 match fragment {
7931 LineFragment::Text(line) => {
7932 line.paint(fragment_origin, line_height, window, cx)
7933 .log_err();
7934 fragment_origin.x += line.width;
7935 }
7936 LineFragment::Element { size, .. } => {
7937 fragment_origin.x += size.width;
7938 }
7939 }
7940 }
7941
7942 self.draw_invisibles(
7943 selection_ranges,
7944 layout,
7945 content_origin,
7946 line_y,
7947 row,
7948 line_height,
7949 whitespace_setting,
7950 window,
7951 cx,
7952 );
7953 }
7954
7955 fn draw_background(
7956 &self,
7957 layout: &EditorLayout,
7958 row: DisplayRow,
7959 content_origin: gpui::Point<Pixels>,
7960 window: &mut Window,
7961 cx: &mut App,
7962 ) {
7963 let line_height = layout.position_map.line_height;
7964 let line_y = line_height
7965 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
7966
7967 let mut fragment_origin =
7968 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
7969
7970 for fragment in &self.fragments {
7971 match fragment {
7972 LineFragment::Text(line) => {
7973 line.paint_background(fragment_origin, line_height, window, cx)
7974 .log_err();
7975 fragment_origin.x += line.width;
7976 }
7977 LineFragment::Element { size, .. } => {
7978 fragment_origin.x += size.width;
7979 }
7980 }
7981 }
7982 }
7983
7984 fn draw_invisibles(
7985 &self,
7986 selection_ranges: &[Range<DisplayPoint>],
7987 layout: &EditorLayout,
7988 content_origin: gpui::Point<Pixels>,
7989 line_y: Pixels,
7990 row: DisplayRow,
7991 line_height: Pixels,
7992 whitespace_setting: ShowWhitespaceSetting,
7993 window: &mut Window,
7994 cx: &mut App,
7995 ) {
7996 let extract_whitespace_info = |invisible: &Invisible| {
7997 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
7998 Invisible::Tab {
7999 line_start_offset,
8000 line_end_offset,
8001 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
8002 Invisible::Whitespace { line_offset } => {
8003 (*line_offset, line_offset + 1, &layout.space_invisible)
8004 }
8005 };
8006
8007 let x_offset = self.x_for_index(token_offset);
8008 let invisible_offset =
8009 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
8010 let origin = content_origin
8011 + gpui::point(
8012 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
8013 line_y,
8014 );
8015
8016 (
8017 [token_offset, token_end_offset],
8018 Box::new(move |window: &mut Window, cx: &mut App| {
8019 invisible_symbol
8020 .paint(origin, line_height, window, cx)
8021 .log_err();
8022 }),
8023 )
8024 };
8025
8026 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
8027 match whitespace_setting {
8028 ShowWhitespaceSetting::None => (),
8029 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
8030 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
8031 let invisible_point = DisplayPoint::new(row, start as u32);
8032 if !selection_ranges
8033 .iter()
8034 .any(|region| region.start <= invisible_point && invisible_point < region.end)
8035 {
8036 return;
8037 }
8038
8039 paint(window, cx);
8040 }),
8041
8042 ShowWhitespaceSetting::Trailing => {
8043 let mut previous_start = self.len;
8044 for ([start, end], paint) in invisible_iter.rev() {
8045 if previous_start != end {
8046 break;
8047 }
8048 previous_start = start;
8049 paint(window, cx);
8050 }
8051 }
8052
8053 // For a whitespace to be on a boundary, any of the following conditions need to be met:
8054 // - It is a tab
8055 // - It is adjacent to an edge (start or end)
8056 // - It is adjacent to a whitespace (left or right)
8057 ShowWhitespaceSetting::Boundary => {
8058 // 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
8059 // the above cases.
8060 // Note: We zip in the original `invisibles` to check for tab equality
8061 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
8062 for (([start, end], paint), invisible) in
8063 invisible_iter.zip_eq(self.invisibles.iter())
8064 {
8065 let should_render = match (&last_seen, invisible) {
8066 (_, Invisible::Tab { .. }) => true,
8067 (Some((_, last_end, _)), _) => *last_end == start,
8068 _ => false,
8069 };
8070
8071 if should_render || start == 0 || end == self.len {
8072 paint(window, cx);
8073
8074 // Since we are scanning from the left, we will skip over the first available whitespace that is part
8075 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
8076 if let Some((should_render_last, last_end, paint_last)) = last_seen {
8077 // Note that we need to make sure that the last one is actually adjacent
8078 if !should_render_last && last_end == start {
8079 paint_last(window, cx);
8080 }
8081 }
8082 }
8083
8084 // Manually render anything within a selection
8085 let invisible_point = DisplayPoint::new(row, start as u32);
8086 if selection_ranges.iter().any(|region| {
8087 region.start <= invisible_point && invisible_point < region.end
8088 }) {
8089 paint(window, cx);
8090 }
8091
8092 last_seen = Some((should_render, end, paint));
8093 }
8094 }
8095 }
8096 }
8097
8098 pub fn x_for_index(&self, index: usize) -> Pixels {
8099 let mut fragment_start_x = Pixels::ZERO;
8100 let mut fragment_start_index = 0;
8101
8102 for fragment in &self.fragments {
8103 match fragment {
8104 LineFragment::Text(shaped_line) => {
8105 let fragment_end_index = fragment_start_index + shaped_line.len;
8106 if index < fragment_end_index {
8107 return fragment_start_x
8108 + shaped_line.x_for_index(index - fragment_start_index);
8109 }
8110 fragment_start_x += shaped_line.width;
8111 fragment_start_index = fragment_end_index;
8112 }
8113 LineFragment::Element { len, size, .. } => {
8114 let fragment_end_index = fragment_start_index + len;
8115 if index < fragment_end_index {
8116 return fragment_start_x;
8117 }
8118 fragment_start_x += size.width;
8119 fragment_start_index = fragment_end_index;
8120 }
8121 }
8122 }
8123
8124 fragment_start_x
8125 }
8126
8127 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
8128 let mut fragment_start_x = Pixels::ZERO;
8129 let mut fragment_start_index = 0;
8130
8131 for fragment in &self.fragments {
8132 match fragment {
8133 LineFragment::Text(shaped_line) => {
8134 let fragment_end_x = fragment_start_x + shaped_line.width;
8135 if x < fragment_end_x {
8136 return Some(
8137 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
8138 );
8139 }
8140 fragment_start_x = fragment_end_x;
8141 fragment_start_index += shaped_line.len;
8142 }
8143 LineFragment::Element { len, size, .. } => {
8144 let fragment_end_x = fragment_start_x + size.width;
8145 if x < fragment_end_x {
8146 return Some(fragment_start_index);
8147 }
8148 fragment_start_index += len;
8149 fragment_start_x = fragment_end_x;
8150 }
8151 }
8152 }
8153
8154 None
8155 }
8156
8157 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
8158 let mut fragment_start_index = 0;
8159
8160 for fragment in &self.fragments {
8161 match fragment {
8162 LineFragment::Text(shaped_line) => {
8163 let fragment_end_index = fragment_start_index + shaped_line.len;
8164 if index < fragment_end_index {
8165 return shaped_line.font_id_for_index(index - fragment_start_index);
8166 }
8167 fragment_start_index = fragment_end_index;
8168 }
8169 LineFragment::Element { len, .. } => {
8170 let fragment_end_index = fragment_start_index + len;
8171 if index < fragment_end_index {
8172 return None;
8173 }
8174 fragment_start_index = fragment_end_index;
8175 }
8176 }
8177 }
8178
8179 None
8180 }
8181}
8182
8183#[derive(Debug, Clone, Copy, PartialEq, Eq)]
8184enum Invisible {
8185 /// A tab character
8186 ///
8187 /// A tab character is internally represented by spaces (configured by the user's tab width)
8188 /// aligned to the nearest column, so it's necessary to store the start and end offset for
8189 /// adjacency checks.
8190 Tab {
8191 line_start_offset: usize,
8192 line_end_offset: usize,
8193 },
8194 Whitespace {
8195 line_offset: usize,
8196 },
8197}
8198
8199impl EditorElement {
8200 /// Returns the rem size to use when rendering the [`EditorElement`].
8201 ///
8202 /// This allows UI elements to scale based on the `buffer_font_size`.
8203 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
8204 match self.editor.read(cx).mode {
8205 EditorMode::Full {
8206 scale_ui_elements_with_buffer_font_size: true,
8207 ..
8208 }
8209 | EditorMode::Minimap { .. } => {
8210 let buffer_font_size = self.style.text.font_size;
8211 match buffer_font_size {
8212 AbsoluteLength::Pixels(pixels) => {
8213 let rem_size_scale = {
8214 // Our default UI font size is 14px on a 16px base scale.
8215 // This means the default UI font size is 0.875rems.
8216 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
8217
8218 // We then determine the delta between a single rem and the default font
8219 // size scale.
8220 let default_font_size_delta = 1. - default_font_size_scale;
8221
8222 // Finally, we add this delta to 1rem to get the scale factor that
8223 // should be used to scale up the UI.
8224 1. + default_font_size_delta
8225 };
8226
8227 Some(pixels * rem_size_scale)
8228 }
8229 AbsoluteLength::Rems(rems) => {
8230 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
8231 }
8232 }
8233 }
8234 // We currently use single-line and auto-height editors in UI contexts,
8235 // so we don't want to scale everything with the buffer font size, as it
8236 // ends up looking off.
8237 _ => None,
8238 }
8239 }
8240
8241 fn editor_with_selections(&self, cx: &App) -> Option<Entity<Editor>> {
8242 if let EditorMode::Minimap { parent } = self.editor.read(cx).mode() {
8243 parent.upgrade()
8244 } else {
8245 Some(self.editor.clone())
8246 }
8247 }
8248}
8249
8250impl Element for EditorElement {
8251 type RequestLayoutState = ();
8252 type PrepaintState = EditorLayout;
8253
8254 fn id(&self) -> Option<ElementId> {
8255 None
8256 }
8257
8258 fn source_location(&self) -> Option<&'static core::panic::Location<'static>> {
8259 None
8260 }
8261
8262 fn request_layout(
8263 &mut self,
8264 _: Option<&GlobalElementId>,
8265 _inspector_id: Option<&gpui::InspectorElementId>,
8266 window: &mut Window,
8267 cx: &mut App,
8268 ) -> (gpui::LayoutId, ()) {
8269 let rem_size = self.rem_size(cx);
8270 window.with_rem_size(rem_size, |window| {
8271 self.editor.update(cx, |editor, cx| {
8272 editor.set_style(self.style.clone(), window, cx);
8273
8274 let layout_id = match editor.mode {
8275 EditorMode::SingleLine => {
8276 let rem_size = window.rem_size();
8277 let height = self.style.text.line_height_in_pixels(rem_size);
8278 let mut style = Style::default();
8279 style.size.height = height.into();
8280 style.size.width = relative(1.).into();
8281 window.request_layout(style, None, cx)
8282 }
8283 EditorMode::AutoHeight {
8284 min_lines,
8285 max_lines,
8286 } => {
8287 let editor_handle = cx.entity();
8288 let max_line_number_width =
8289 self.max_line_number_width(&editor.snapshot(window, cx), window);
8290 window.request_measured_layout(
8291 Style::default(),
8292 move |known_dimensions, available_space, window, cx| {
8293 editor_handle
8294 .update(cx, |editor, cx| {
8295 compute_auto_height_layout(
8296 editor,
8297 min_lines,
8298 max_lines,
8299 max_line_number_width,
8300 known_dimensions,
8301 available_space.width,
8302 window,
8303 cx,
8304 )
8305 })
8306 .unwrap_or_default()
8307 },
8308 )
8309 }
8310 EditorMode::Minimap { .. } => {
8311 let mut style = Style::default();
8312 style.size.width = relative(1.).into();
8313 style.size.height = relative(1.).into();
8314 window.request_layout(style, None, cx)
8315 }
8316 EditorMode::Full {
8317 sized_by_content, ..
8318 } => {
8319 let mut style = Style::default();
8320 style.size.width = relative(1.).into();
8321 if sized_by_content {
8322 let snapshot = editor.snapshot(window, cx);
8323 let line_height =
8324 self.style.text.line_height_in_pixels(window.rem_size());
8325 let scroll_height =
8326 (snapshot.max_point().row().next_row().0 as f32) * line_height;
8327 style.size.height = scroll_height.into();
8328 } else {
8329 style.size.height = relative(1.).into();
8330 }
8331 window.request_layout(style, None, cx)
8332 }
8333 };
8334
8335 (layout_id, ())
8336 })
8337 })
8338 }
8339
8340 fn prepaint(
8341 &mut self,
8342 _: Option<&GlobalElementId>,
8343 _inspector_id: Option<&gpui::InspectorElementId>,
8344 bounds: Bounds<Pixels>,
8345 _: &mut Self::RequestLayoutState,
8346 window: &mut Window,
8347 cx: &mut App,
8348 ) -> Self::PrepaintState {
8349 let text_style = TextStyleRefinement {
8350 font_size: Some(self.style.text.font_size),
8351 line_height: Some(self.style.text.line_height),
8352 ..Default::default()
8353 };
8354
8355 let is_minimap = self.editor.read(cx).mode.is_minimap();
8356
8357 if !is_minimap {
8358 let focus_handle = self.editor.focus_handle(cx);
8359 window.set_view_id(self.editor.entity_id());
8360 window.set_focus_handle(&focus_handle, cx);
8361 }
8362
8363 let rem_size = self.rem_size(cx);
8364 window.with_rem_size(rem_size, |window| {
8365 window.with_text_style(Some(text_style), |window| {
8366 window.with_content_mask(Some(ContentMask { bounds }), |window| {
8367 let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| {
8368 (editor.snapshot(window, cx), editor.read_only(cx))
8369 });
8370 let style = &self.style;
8371
8372 let rem_size = window.rem_size();
8373 let font_id = window.text_system().resolve_font(&style.text.font());
8374 let font_size = style.text.font_size.to_pixels(rem_size);
8375 let line_height = style.text.line_height_in_pixels(rem_size);
8376 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8377 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
8378 let glyph_grid_cell = size(em_advance, line_height);
8379
8380 let gutter_dimensions = snapshot
8381 .gutter_dimensions(
8382 font_id,
8383 font_size,
8384 self.max_line_number_width(&snapshot, window),
8385 cx,
8386 )
8387 .or_else(|| {
8388 self.editor.read(cx).offset_content.then(|| {
8389 GutterDimensions::default_with_margin(font_id, font_size, cx)
8390 })
8391 })
8392 .unwrap_or_default();
8393 let text_width = bounds.size.width - gutter_dimensions.width;
8394
8395 let settings = EditorSettings::get_global(cx);
8396 let scrollbars_shown = settings.scrollbar.show != ShowScrollbar::Never;
8397 let vertical_scrollbar_width = (scrollbars_shown
8398 && settings.scrollbar.axes.vertical
8399 && self.editor.read(cx).show_scrollbars.vertical)
8400 .then_some(style.scrollbar_width)
8401 .unwrap_or_default();
8402 let minimap_width = self
8403 .get_minimap_width(
8404 &settings.minimap,
8405 scrollbars_shown,
8406 text_width,
8407 em_width,
8408 font_size,
8409 rem_size,
8410 cx,
8411 )
8412 .unwrap_or_default();
8413
8414 let right_margin = minimap_width + vertical_scrollbar_width;
8415
8416 let editor_width =
8417 text_width - gutter_dimensions.margin - 2 * em_width - right_margin;
8418 let editor_margins = EditorMargins {
8419 gutter: gutter_dimensions,
8420 right: right_margin,
8421 };
8422
8423 snapshot = self.editor.update(cx, |editor, cx| {
8424 editor.last_bounds = Some(bounds);
8425 editor.gutter_dimensions = gutter_dimensions;
8426 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
8427 editor.set_visible_column_count(editor_width / em_advance);
8428
8429 if matches!(
8430 editor.mode,
8431 EditorMode::AutoHeight { .. } | EditorMode::Minimap { .. }
8432 ) {
8433 snapshot
8434 } else {
8435 let wrap_width_for = |column: u32| (column as f32 * em_advance).ceil();
8436 let wrap_width = match editor.soft_wrap_mode(cx) {
8437 SoftWrap::GitDiff => None,
8438 SoftWrap::None => Some(wrap_width_for(MAX_LINE_LEN as u32 / 2)),
8439 SoftWrap::EditorWidth => Some(editor_width),
8440 SoftWrap::Column(column) => Some(wrap_width_for(column)),
8441 SoftWrap::Bounded(column) => {
8442 Some(editor_width.min(wrap_width_for(column)))
8443 }
8444 };
8445
8446 if editor.set_wrap_width(wrap_width, cx) {
8447 editor.snapshot(window, cx)
8448 } else {
8449 snapshot
8450 }
8451 }
8452 });
8453
8454 let hitbox = window.insert_hitbox(bounds, HitboxBehavior::Normal);
8455 let gutter_hitbox = window.insert_hitbox(
8456 gutter_bounds(bounds, gutter_dimensions),
8457 HitboxBehavior::Normal,
8458 );
8459 let text_hitbox = window.insert_hitbox(
8460 Bounds {
8461 origin: gutter_hitbox.top_right(),
8462 size: size(text_width, bounds.size.height),
8463 },
8464 HitboxBehavior::Normal,
8465 );
8466
8467 // Offset the content_bounds from the text_bounds by the gutter margin (which
8468 // is roughly half a character wide) to make hit testing work more like how we want.
8469 let content_offset = point(editor_margins.gutter.margin, Pixels::ZERO);
8470 let content_origin = text_hitbox.origin + content_offset;
8471
8472 let height_in_lines = bounds.size.height / line_height;
8473 let max_row = snapshot.max_point().row().as_f32();
8474
8475 // The max scroll position for the top of the window
8476 let max_scroll_top = if matches!(
8477 snapshot.mode,
8478 EditorMode::SingleLine
8479 | EditorMode::AutoHeight { .. }
8480 | EditorMode::Full {
8481 sized_by_content: true,
8482 ..
8483 }
8484 ) {
8485 (max_row - height_in_lines + 1.).max(0.)
8486 } else {
8487 let settings = EditorSettings::get_global(cx);
8488 match settings.scroll_beyond_last_line {
8489 ScrollBeyondLastLine::OnePage => max_row,
8490 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
8491 ScrollBeyondLastLine::VerticalScrollMargin => {
8492 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
8493 .max(0.)
8494 }
8495 }
8496 };
8497
8498 let (
8499 autoscroll_request,
8500 autoscroll_containing_element,
8501 needs_horizontal_autoscroll,
8502 ) = self.editor.update(cx, |editor, cx| {
8503 let autoscroll_request = editor.scroll_manager.take_autoscroll_request();
8504
8505 let autoscroll_containing_element =
8506 autoscroll_request.is_some() || editor.has_pending_selection();
8507
8508 let (needs_horizontal_autoscroll, was_scrolled) = editor
8509 .autoscroll_vertically(
8510 bounds,
8511 line_height,
8512 max_scroll_top,
8513 autoscroll_request,
8514 window,
8515 cx,
8516 );
8517 if was_scrolled.0 {
8518 snapshot = editor.snapshot(window, cx);
8519 }
8520 (
8521 autoscroll_request,
8522 autoscroll_containing_element,
8523 needs_horizontal_autoscroll,
8524 )
8525 });
8526
8527 let mut scroll_position = snapshot.scroll_position();
8528 // The scroll position is a fractional point, the whole number of which represents
8529 // the top of the window in terms of display rows.
8530 let start_row = DisplayRow(scroll_position.y as u32);
8531 let max_row = snapshot.max_point().row();
8532 let end_row = cmp::min(
8533 (scroll_position.y + height_in_lines).ceil() as u32,
8534 max_row.next_row().0,
8535 );
8536 let end_row = DisplayRow(end_row);
8537
8538 let row_infos = snapshot
8539 .row_infos(start_row)
8540 .take((start_row..end_row).len())
8541 .collect::<Vec<RowInfo>>();
8542 let is_row_soft_wrapped = |row: usize| {
8543 row_infos
8544 .get(row)
8545 .is_none_or(|info| info.buffer_row.is_none())
8546 };
8547
8548 let start_anchor = if start_row == Default::default() {
8549 Anchor::min()
8550 } else {
8551 snapshot.buffer_snapshot.anchor_before(
8552 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
8553 )
8554 };
8555 let end_anchor = if end_row > max_row {
8556 Anchor::max()
8557 } else {
8558 snapshot.buffer_snapshot.anchor_before(
8559 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
8560 )
8561 };
8562
8563 let mut highlighted_rows = self
8564 .editor
8565 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
8566
8567 let is_light = cx.theme().appearance().is_light();
8568
8569 for (ix, row_info) in row_infos.iter().enumerate() {
8570 let Some(diff_status) = row_info.diff_status else {
8571 continue;
8572 };
8573
8574 let background_color = match diff_status.kind {
8575 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
8576 DiffHunkStatusKind::Deleted => {
8577 cx.theme().colors().version_control_deleted
8578 }
8579 DiffHunkStatusKind::Modified => {
8580 debug_panic!("modified diff status for row info");
8581 continue;
8582 }
8583 };
8584
8585 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
8586
8587 let hollow_highlight = LineHighlight {
8588 background: (background_color.opacity(if is_light {
8589 0.08
8590 } else {
8591 0.06
8592 }))
8593 .into(),
8594 border: Some(if is_light {
8595 background_color.opacity(0.48)
8596 } else {
8597 background_color.opacity(0.36)
8598 }),
8599 include_gutter: true,
8600 type_id: None,
8601 };
8602
8603 let filled_highlight = LineHighlight {
8604 background: solid_background(background_color.opacity(hunk_opacity)),
8605 border: None,
8606 include_gutter: true,
8607 type_id: None,
8608 };
8609
8610 let background = if Self::diff_hunk_hollow(diff_status, cx) {
8611 hollow_highlight
8612 } else {
8613 filled_highlight
8614 };
8615
8616 highlighted_rows
8617 .entry(start_row + DisplayRow(ix as u32))
8618 .or_insert(background);
8619 }
8620
8621 let highlighted_ranges = self
8622 .editor_with_selections(cx)
8623 .map(|editor| {
8624 editor.read(cx).background_highlights_in_range(
8625 start_anchor..end_anchor,
8626 &snapshot.display_snapshot,
8627 cx.theme(),
8628 )
8629 })
8630 .unwrap_or_default();
8631 let highlighted_gutter_ranges =
8632 self.editor.read(cx).gutter_highlights_in_range(
8633 start_anchor..end_anchor,
8634 &snapshot.display_snapshot,
8635 cx,
8636 );
8637
8638 let document_colors = self
8639 .editor
8640 .read(cx)
8641 .colors
8642 .as_ref()
8643 .map(|colors| colors.editor_display_highlights(&snapshot));
8644 let redacted_ranges = self.editor.read(cx).redacted_ranges(
8645 start_anchor..end_anchor,
8646 &snapshot.display_snapshot,
8647 cx,
8648 );
8649
8650 let (local_selections, selected_buffer_ids): (
8651 Vec<Selection<Point>>,
8652 Vec<BufferId>,
8653 ) = self
8654 .editor_with_selections(cx)
8655 .map(|editor| {
8656 editor.update(cx, |editor, cx| {
8657 let all_selections = editor.selections.all::<Point>(cx);
8658 let selected_buffer_ids = if editor.is_singleton(cx) {
8659 Vec::new()
8660 } else {
8661 let mut selected_buffer_ids =
8662 Vec::with_capacity(all_selections.len());
8663
8664 for selection in all_selections {
8665 for buffer_id in snapshot
8666 .buffer_snapshot
8667 .buffer_ids_for_range(selection.range())
8668 {
8669 if selected_buffer_ids.last() != Some(&buffer_id) {
8670 selected_buffer_ids.push(buffer_id);
8671 }
8672 }
8673 }
8674
8675 selected_buffer_ids
8676 };
8677
8678 let mut selections = editor
8679 .selections
8680 .disjoint_in_range(start_anchor..end_anchor, cx);
8681 selections.extend(editor.selections.pending(cx));
8682
8683 (selections, selected_buffer_ids)
8684 })
8685 })
8686 .unwrap_or_default();
8687
8688 let (selections, mut active_rows, newest_selection_head) = self
8689 .layout_selections(
8690 start_anchor,
8691 end_anchor,
8692 &local_selections,
8693 &snapshot,
8694 start_row,
8695 end_row,
8696 window,
8697 cx,
8698 );
8699 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
8700 editor.active_breakpoints(start_row..end_row, window, cx)
8701 });
8702 for (display_row, (_, bp, state)) in &breakpoint_rows {
8703 if bp.is_enabled() && state.is_none_or(|s| s.verified) {
8704 active_rows.entry(*display_row).or_default().breakpoint = true;
8705 }
8706 }
8707
8708 let line_numbers = self.layout_line_numbers(
8709 Some(&gutter_hitbox),
8710 gutter_dimensions,
8711 line_height,
8712 scroll_position,
8713 start_row..end_row,
8714 &row_infos,
8715 &active_rows,
8716 newest_selection_head,
8717 &snapshot,
8718 window,
8719 cx,
8720 );
8721
8722 // We add the gutter breakpoint indicator to breakpoint_rows after painting
8723 // line numbers so we don't paint a line number debug accent color if a user
8724 // has their mouse over that line when a breakpoint isn't there
8725 self.editor.update(cx, |editor, _| {
8726 if let Some(phantom_breakpoint) = &mut editor
8727 .gutter_breakpoint_indicator
8728 .0
8729 .filter(|phantom_breakpoint| phantom_breakpoint.is_active)
8730 {
8731 // Is there a non-phantom breakpoint on this line?
8732 phantom_breakpoint.collides_with_existing_breakpoint = true;
8733 breakpoint_rows
8734 .entry(phantom_breakpoint.display_row)
8735 .or_insert_with(|| {
8736 let position = snapshot.display_point_to_anchor(
8737 DisplayPoint::new(phantom_breakpoint.display_row, 0),
8738 Bias::Right,
8739 );
8740 let breakpoint = Breakpoint::new_standard();
8741 phantom_breakpoint.collides_with_existing_breakpoint = false;
8742 (position, breakpoint, None)
8743 });
8744 }
8745 });
8746
8747 let mut expand_toggles =
8748 window.with_element_namespace("expand_toggles", |window| {
8749 self.layout_expand_toggles(
8750 &gutter_hitbox,
8751 gutter_dimensions,
8752 em_width,
8753 line_height,
8754 scroll_position,
8755 &row_infos,
8756 window,
8757 cx,
8758 )
8759 });
8760
8761 let mut crease_toggles =
8762 window.with_element_namespace("crease_toggles", |window| {
8763 self.layout_crease_toggles(
8764 start_row..end_row,
8765 &row_infos,
8766 &active_rows,
8767 &snapshot,
8768 window,
8769 cx,
8770 )
8771 });
8772 let crease_trailers =
8773 window.with_element_namespace("crease_trailers", |window| {
8774 self.layout_crease_trailers(
8775 row_infos.iter().copied(),
8776 &snapshot,
8777 window,
8778 cx,
8779 )
8780 });
8781
8782 let display_hunks = self.layout_gutter_diff_hunks(
8783 line_height,
8784 &gutter_hitbox,
8785 start_row..end_row,
8786 &snapshot,
8787 window,
8788 cx,
8789 );
8790
8791 let bg_segments_per_row = Self::bg_segments_per_row(
8792 start_row..end_row,
8793 &selections,
8794 &highlighted_ranges,
8795 self.style.background,
8796 );
8797
8798 let mut line_layouts = Self::layout_lines(
8799 start_row..end_row,
8800 &snapshot,
8801 &self.style,
8802 editor_width,
8803 is_row_soft_wrapped,
8804 &bg_segments_per_row,
8805 window,
8806 cx,
8807 );
8808 let new_renderer_widths = (!is_minimap).then(|| {
8809 line_layouts
8810 .iter()
8811 .flat_map(|layout| &layout.fragments)
8812 .filter_map(|fragment| {
8813 if let LineFragment::Element { id, size, .. } = fragment {
8814 Some((*id, size.width))
8815 } else {
8816 None
8817 }
8818 })
8819 });
8820 if new_renderer_widths.is_some_and(|new_renderer_widths| {
8821 self.editor.update(cx, |editor, cx| {
8822 editor.update_renderer_widths(new_renderer_widths, cx)
8823 })
8824 }) {
8825 // If the fold widths have changed, we need to prepaint
8826 // the element again to account for any changes in
8827 // wrapping.
8828 return self.prepaint(None, _inspector_id, bounds, &mut (), window, cx);
8829 }
8830
8831 let longest_line_blame_width = self
8832 .editor
8833 .update(cx, |editor, cx| {
8834 if !editor.show_git_blame_inline {
8835 return None;
8836 }
8837 let blame = editor.blame.as_ref()?;
8838 let (_, blame_entry) = blame
8839 .update(cx, |blame, cx| {
8840 let row_infos =
8841 snapshot.row_infos(snapshot.longest_row()).next()?;
8842 blame.blame_for_rows(&[row_infos], cx).next()
8843 })
8844 .flatten()?;
8845 let mut element = render_inline_blame_entry(blame_entry, style, cx)?;
8846 let inline_blame_padding =
8847 ProjectSettings::get_global(cx).git.inline_blame.padding as f32
8848 * em_advance;
8849 Some(
8850 element
8851 .layout_as_root(AvailableSpace::min_size(), window, cx)
8852 .width
8853 + inline_blame_padding,
8854 )
8855 })
8856 .unwrap_or(Pixels::ZERO);
8857
8858 let longest_line_width = layout_line(
8859 snapshot.longest_row(),
8860 &snapshot,
8861 style,
8862 editor_width,
8863 is_row_soft_wrapped,
8864 window,
8865 cx,
8866 )
8867 .width;
8868
8869 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
8870 text_hitbox.bounds,
8871 glyph_grid_cell,
8872 size(longest_line_width, max_row.as_f32() * line_height),
8873 longest_line_blame_width,
8874 EditorSettings::get_global(cx),
8875 );
8876
8877 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
8878
8879 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
8880 snapshot.sticky_header_excerpt(scroll_position.y)
8881 } else {
8882 None
8883 };
8884 let sticky_header_excerpt_id =
8885 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
8886
8887 let blocks = (!is_minimap)
8888 .then(|| {
8889 window.with_element_namespace("blocks", |window| {
8890 self.render_blocks(
8891 start_row..end_row,
8892 &snapshot,
8893 &hitbox,
8894 &text_hitbox,
8895 editor_width,
8896 &mut scroll_width,
8897 &editor_margins,
8898 em_width,
8899 gutter_dimensions.full_width(),
8900 line_height,
8901 &mut line_layouts,
8902 &local_selections,
8903 &selected_buffer_ids,
8904 is_row_soft_wrapped,
8905 sticky_header_excerpt_id,
8906 window,
8907 cx,
8908 )
8909 })
8910 })
8911 .unwrap_or_else(|| Ok((Vec::default(), HashMap::default())));
8912 let (mut blocks, row_block_types) = match blocks {
8913 Ok(blocks) => blocks,
8914 Err(resized_blocks) => {
8915 self.editor.update(cx, |editor, cx| {
8916 editor.resize_blocks(
8917 resized_blocks,
8918 autoscroll_request.map(|(autoscroll, _)| autoscroll),
8919 cx,
8920 )
8921 });
8922 return self.prepaint(None, _inspector_id, bounds, &mut (), window, cx);
8923 }
8924 };
8925
8926 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
8927 window.with_element_namespace("blocks", |window| {
8928 self.layout_sticky_buffer_header(
8929 sticky_header_excerpt,
8930 scroll_position.y,
8931 line_height,
8932 right_margin,
8933 &snapshot,
8934 &hitbox,
8935 &selected_buffer_ids,
8936 &blocks,
8937 window,
8938 cx,
8939 )
8940 })
8941 });
8942
8943 let start_buffer_row =
8944 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
8945 let end_buffer_row =
8946 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
8947
8948 let scroll_max = point(
8949 ((scroll_width - editor_width) / em_advance).max(0.0),
8950 max_scroll_top,
8951 );
8952
8953 self.editor.update(cx, |editor, cx| {
8954 if editor.scroll_manager.clamp_scroll_left(scroll_max.x) {
8955 scroll_position.x = scroll_position.x.min(scroll_max.x);
8956 }
8957
8958 if needs_horizontal_autoscroll.0
8959 && let Some(new_scroll_position) = editor.autoscroll_horizontally(
8960 start_row,
8961 editor_width,
8962 scroll_width,
8963 em_advance,
8964 &line_layouts,
8965 autoscroll_request,
8966 window,
8967 cx,
8968 )
8969 {
8970 scroll_position = new_scroll_position;
8971 }
8972 });
8973
8974 let scroll_pixel_position = point(
8975 scroll_position.x * em_advance,
8976 scroll_position.y * line_height,
8977 );
8978 let indent_guides = self.layout_indent_guides(
8979 content_origin,
8980 text_hitbox.origin,
8981 start_buffer_row..end_buffer_row,
8982 scroll_pixel_position,
8983 line_height,
8984 &snapshot,
8985 window,
8986 cx,
8987 );
8988
8989 let crease_trailers =
8990 window.with_element_namespace("crease_trailers", |window| {
8991 self.prepaint_crease_trailers(
8992 crease_trailers,
8993 &line_layouts,
8994 line_height,
8995 content_origin,
8996 scroll_pixel_position,
8997 em_width,
8998 window,
8999 cx,
9000 )
9001 });
9002
9003 let (edit_prediction_popover, edit_prediction_popover_origin) = self
9004 .editor
9005 .update(cx, |editor, cx| {
9006 editor.render_edit_prediction_popover(
9007 &text_hitbox.bounds,
9008 content_origin,
9009 right_margin,
9010 &snapshot,
9011 start_row..end_row,
9012 scroll_position.y,
9013 scroll_position.y + height_in_lines,
9014 &line_layouts,
9015 line_height,
9016 scroll_pixel_position,
9017 newest_selection_head,
9018 editor_width,
9019 style,
9020 window,
9021 cx,
9022 )
9023 })
9024 .unzip();
9025
9026 let mut inline_diagnostics = self.layout_inline_diagnostics(
9027 &line_layouts,
9028 &crease_trailers,
9029 &row_block_types,
9030 content_origin,
9031 scroll_pixel_position,
9032 edit_prediction_popover_origin,
9033 start_row,
9034 end_row,
9035 line_height,
9036 em_width,
9037 style,
9038 window,
9039 cx,
9040 );
9041
9042 let mut inline_blame_layout = None;
9043 let mut inline_code_actions = None;
9044 if let Some(newest_selection_head) = newest_selection_head {
9045 let display_row = newest_selection_head.row();
9046 if (start_row..end_row).contains(&display_row)
9047 && !row_block_types.contains_key(&display_row)
9048 {
9049 inline_code_actions = self.layout_inline_code_actions(
9050 newest_selection_head,
9051 content_origin,
9052 scroll_pixel_position,
9053 line_height,
9054 &snapshot,
9055 window,
9056 cx,
9057 );
9058
9059 let line_ix = display_row.minus(start_row) as usize;
9060 if let (Some(row_info), Some(line_layout), Some(crease_trailer)) = (
9061 row_infos.get(line_ix),
9062 line_layouts.get(line_ix),
9063 crease_trailers.get(line_ix),
9064 ) {
9065 let crease_trailer_layout = crease_trailer.as_ref();
9066 if let Some(layout) = self.layout_inline_blame(
9067 display_row,
9068 row_info,
9069 line_layout,
9070 crease_trailer_layout,
9071 em_width,
9072 content_origin,
9073 scroll_pixel_position,
9074 line_height,
9075 &text_hitbox,
9076 window,
9077 cx,
9078 ) {
9079 inline_blame_layout = Some(layout);
9080 // Blame overrides inline diagnostics
9081 inline_diagnostics.remove(&display_row);
9082 }
9083 } else {
9084 log::error!(
9085 "bug: line_ix {} is out of bounds - row_infos.len(): {}, \
9086 line_layouts.len(): {}, \
9087 crease_trailers.len(): {}",
9088 line_ix,
9089 row_infos.len(),
9090 line_layouts.len(),
9091 crease_trailers.len(),
9092 );
9093 }
9094 }
9095 }
9096
9097 let blamed_display_rows = self.layout_blame_entries(
9098 &row_infos,
9099 em_width,
9100 scroll_position,
9101 line_height,
9102 &gutter_hitbox,
9103 gutter_dimensions.git_blame_entries_width,
9104 window,
9105 cx,
9106 );
9107
9108 let line_elements = self.prepaint_lines(
9109 start_row,
9110 &mut line_layouts,
9111 line_height,
9112 scroll_pixel_position,
9113 content_origin,
9114 window,
9115 cx,
9116 );
9117
9118 window.with_element_namespace("blocks", |window| {
9119 self.layout_blocks(
9120 &mut blocks,
9121 &hitbox,
9122 line_height,
9123 scroll_pixel_position,
9124 window,
9125 cx,
9126 );
9127 });
9128
9129 let cursors = self.collect_cursors(&snapshot, cx);
9130 let visible_row_range = start_row..end_row;
9131 let non_visible_cursors = cursors
9132 .iter()
9133 .any(|c| !visible_row_range.contains(&c.0.row()));
9134
9135 let visible_cursors = self.layout_visible_cursors(
9136 &snapshot,
9137 &selections,
9138 &row_block_types,
9139 start_row..end_row,
9140 &line_layouts,
9141 &text_hitbox,
9142 content_origin,
9143 scroll_position,
9144 scroll_pixel_position,
9145 line_height,
9146 em_width,
9147 em_advance,
9148 autoscroll_containing_element,
9149 window,
9150 cx,
9151 );
9152
9153 let scrollbars_layout = self.layout_scrollbars(
9154 &snapshot,
9155 &scrollbar_layout_information,
9156 content_offset,
9157 scroll_position,
9158 non_visible_cursors,
9159 right_margin,
9160 editor_width,
9161 window,
9162 cx,
9163 );
9164
9165 let gutter_settings = EditorSettings::get_global(cx).gutter;
9166
9167 let context_menu_layout =
9168 if let Some(newest_selection_head) = newest_selection_head {
9169 let newest_selection_point =
9170 newest_selection_head.to_point(&snapshot.display_snapshot);
9171 if (start_row..end_row).contains(&newest_selection_head.row()) {
9172 self.layout_cursor_popovers(
9173 line_height,
9174 &text_hitbox,
9175 content_origin,
9176 right_margin,
9177 start_row,
9178 scroll_pixel_position,
9179 &line_layouts,
9180 newest_selection_head,
9181 newest_selection_point,
9182 style,
9183 window,
9184 cx,
9185 )
9186 } else {
9187 None
9188 }
9189 } else {
9190 None
9191 };
9192
9193 self.layout_gutter_menu(
9194 line_height,
9195 &text_hitbox,
9196 content_origin,
9197 right_margin,
9198 scroll_pixel_position,
9199 gutter_dimensions.width - gutter_dimensions.left_padding,
9200 window,
9201 cx,
9202 );
9203
9204 let test_indicators = if gutter_settings.runnables {
9205 self.layout_run_indicators(
9206 line_height,
9207 start_row..end_row,
9208 &row_infos,
9209 scroll_pixel_position,
9210 &gutter_dimensions,
9211 &gutter_hitbox,
9212 &display_hunks,
9213 &snapshot,
9214 &mut breakpoint_rows,
9215 window,
9216 cx,
9217 )
9218 } else {
9219 Vec::new()
9220 };
9221
9222 let show_breakpoints = snapshot
9223 .show_breakpoints
9224 .unwrap_or(gutter_settings.breakpoints);
9225 let breakpoints = if show_breakpoints {
9226 self.layout_breakpoints(
9227 line_height,
9228 start_row..end_row,
9229 scroll_pixel_position,
9230 &gutter_dimensions,
9231 &gutter_hitbox,
9232 &display_hunks,
9233 &snapshot,
9234 breakpoint_rows,
9235 &row_infos,
9236 window,
9237 cx,
9238 )
9239 } else {
9240 Vec::new()
9241 };
9242
9243 self.layout_signature_help(
9244 &hitbox,
9245 content_origin,
9246 scroll_pixel_position,
9247 newest_selection_head,
9248 start_row,
9249 &line_layouts,
9250 line_height,
9251 em_width,
9252 context_menu_layout,
9253 window,
9254 cx,
9255 );
9256
9257 if !cx.has_active_drag() {
9258 self.layout_hover_popovers(
9259 &snapshot,
9260 &hitbox,
9261 start_row..end_row,
9262 content_origin,
9263 scroll_pixel_position,
9264 &line_layouts,
9265 line_height,
9266 em_width,
9267 context_menu_layout,
9268 window,
9269 cx,
9270 );
9271 }
9272
9273 let mouse_context_menu = self.layout_mouse_context_menu(
9274 &snapshot,
9275 start_row..end_row,
9276 content_origin,
9277 window,
9278 cx,
9279 );
9280
9281 window.with_element_namespace("crease_toggles", |window| {
9282 self.prepaint_crease_toggles(
9283 &mut crease_toggles,
9284 line_height,
9285 &gutter_dimensions,
9286 gutter_settings,
9287 scroll_pixel_position,
9288 &gutter_hitbox,
9289 window,
9290 cx,
9291 )
9292 });
9293
9294 window.with_element_namespace("expand_toggles", |window| {
9295 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
9296 });
9297
9298 let wrap_guides = self.layout_wrap_guides(
9299 em_advance,
9300 scroll_position,
9301 content_origin,
9302 scrollbars_layout.as_ref(),
9303 vertical_scrollbar_width,
9304 &hitbox,
9305 window,
9306 cx,
9307 );
9308
9309 let minimap = window.with_element_namespace("minimap", |window| {
9310 self.layout_minimap(
9311 &snapshot,
9312 minimap_width,
9313 scroll_position,
9314 &scrollbar_layout_information,
9315 scrollbars_layout.as_ref(),
9316 window,
9317 cx,
9318 )
9319 });
9320
9321 let invisible_symbol_font_size = font_size / 2.;
9322 let whitespace_map = &self
9323 .editor
9324 .read(cx)
9325 .buffer
9326 .read(cx)
9327 .language_settings(cx)
9328 .whitespace_map;
9329
9330 let tab_char = whitespace_map.tab.clone();
9331 let tab_len = tab_char.len();
9332 let tab_invisible = window.text_system().shape_line(
9333 tab_char,
9334 invisible_symbol_font_size,
9335 &[TextRun {
9336 len: tab_len,
9337 font: self.style.text.font(),
9338 color: cx.theme().colors().editor_invisible,
9339 background_color: None,
9340 underline: None,
9341 strikethrough: None,
9342 }],
9343 None,
9344 );
9345
9346 let space_char = whitespace_map.space.clone();
9347 let space_len = space_char.len();
9348 let space_invisible = window.text_system().shape_line(
9349 space_char,
9350 invisible_symbol_font_size,
9351 &[TextRun {
9352 len: space_len,
9353 font: self.style.text.font(),
9354 color: cx.theme().colors().editor_invisible,
9355 background_color: None,
9356 underline: None,
9357 strikethrough: None,
9358 }],
9359 None,
9360 );
9361
9362 let mode = snapshot.mode.clone();
9363
9364 let (diff_hunk_controls, diff_hunk_control_bounds) = if is_read_only {
9365 (vec![], vec![])
9366 } else {
9367 self.layout_diff_hunk_controls(
9368 start_row..end_row,
9369 &row_infos,
9370 &text_hitbox,
9371 newest_selection_head,
9372 line_height,
9373 right_margin,
9374 scroll_pixel_position,
9375 &display_hunks,
9376 &highlighted_rows,
9377 self.editor.clone(),
9378 window,
9379 cx,
9380 )
9381 };
9382
9383 let position_map = Rc::new(PositionMap {
9384 size: bounds.size,
9385 visible_row_range,
9386 scroll_pixel_position,
9387 scroll_max,
9388 line_layouts,
9389 line_height,
9390 em_width,
9391 em_advance,
9392 snapshot,
9393 gutter_hitbox: gutter_hitbox.clone(),
9394 text_hitbox: text_hitbox.clone(),
9395 inline_blame_bounds: inline_blame_layout
9396 .as_ref()
9397 .map(|layout| (layout.bounds, layout.buffer_id, layout.entry.clone())),
9398 display_hunks: display_hunks.clone(),
9399 diff_hunk_control_bounds,
9400 });
9401
9402 self.editor.update(cx, |editor, _| {
9403 editor.last_position_map = Some(position_map.clone())
9404 });
9405
9406 EditorLayout {
9407 mode,
9408 position_map,
9409 visible_display_row_range: start_row..end_row,
9410 wrap_guides,
9411 indent_guides,
9412 hitbox,
9413 gutter_hitbox,
9414 display_hunks,
9415 content_origin,
9416 scrollbars_layout,
9417 minimap,
9418 active_rows,
9419 highlighted_rows,
9420 highlighted_ranges,
9421 highlighted_gutter_ranges,
9422 redacted_ranges,
9423 document_colors,
9424 line_elements,
9425 line_numbers,
9426 blamed_display_rows,
9427 inline_diagnostics,
9428 inline_blame_layout,
9429 inline_code_actions,
9430 blocks,
9431 cursors,
9432 visible_cursors,
9433 selections,
9434 edit_prediction_popover,
9435 diff_hunk_controls,
9436 mouse_context_menu,
9437 test_indicators,
9438 breakpoints,
9439 crease_toggles,
9440 crease_trailers,
9441 tab_invisible,
9442 space_invisible,
9443 sticky_buffer_header,
9444 expand_toggles,
9445 }
9446 })
9447 })
9448 })
9449 }
9450
9451 fn paint(
9452 &mut self,
9453 _: Option<&GlobalElementId>,
9454 _inspector_id: Option<&gpui::InspectorElementId>,
9455 bounds: Bounds<gpui::Pixels>,
9456 _: &mut Self::RequestLayoutState,
9457 layout: &mut Self::PrepaintState,
9458 window: &mut Window,
9459 cx: &mut App,
9460 ) {
9461 if !layout.mode.is_minimap() {
9462 let focus_handle = self.editor.focus_handle(cx);
9463 let key_context = self
9464 .editor
9465 .update(cx, |editor, cx| editor.key_context(window, cx));
9466
9467 window.set_key_context(key_context);
9468 window.handle_input(
9469 &focus_handle,
9470 ElementInputHandler::new(bounds, self.editor.clone()),
9471 cx,
9472 );
9473 self.register_actions(window, cx);
9474 self.register_key_listeners(window, cx, layout);
9475 }
9476
9477 let text_style = TextStyleRefinement {
9478 font_size: Some(self.style.text.font_size),
9479 line_height: Some(self.style.text.line_height),
9480 ..Default::default()
9481 };
9482 let rem_size = self.rem_size(cx);
9483 window.with_rem_size(rem_size, |window| {
9484 window.with_text_style(Some(text_style), |window| {
9485 window.with_content_mask(Some(ContentMask { bounds }), |window| {
9486 self.paint_mouse_listeners(layout, window, cx);
9487 self.paint_background(layout, window, cx);
9488 self.paint_indent_guides(layout, window, cx);
9489
9490 if layout.gutter_hitbox.size.width > Pixels::ZERO {
9491 self.paint_blamed_display_rows(layout, window, cx);
9492 self.paint_line_numbers(layout, window, cx);
9493 }
9494
9495 self.paint_text(layout, window, cx);
9496
9497 if layout.gutter_hitbox.size.width > Pixels::ZERO {
9498 self.paint_gutter_highlights(layout, window, cx);
9499 self.paint_gutter_indicators(layout, window, cx);
9500 }
9501
9502 if !layout.blocks.is_empty() {
9503 window.with_element_namespace("blocks", |window| {
9504 self.paint_blocks(layout, window, cx);
9505 });
9506 }
9507
9508 window.with_element_namespace("blocks", |window| {
9509 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
9510 sticky_header.paint(window, cx)
9511 }
9512 });
9513
9514 self.paint_minimap(layout, window, cx);
9515 self.paint_scrollbars(layout, window, cx);
9516 self.paint_edit_prediction_popover(layout, window, cx);
9517 self.paint_mouse_context_menu(layout, window, cx);
9518 });
9519 })
9520 })
9521 }
9522}
9523
9524pub(super) fn gutter_bounds(
9525 editor_bounds: Bounds<Pixels>,
9526 gutter_dimensions: GutterDimensions,
9527) -> Bounds<Pixels> {
9528 Bounds {
9529 origin: editor_bounds.origin,
9530 size: size(gutter_dimensions.width, editor_bounds.size.height),
9531 }
9532}
9533
9534#[derive(Clone, Copy)]
9535struct ContextMenuLayout {
9536 y_flipped: bool,
9537 bounds: Bounds<Pixels>,
9538}
9539
9540/// Holds information required for layouting the editor scrollbars.
9541struct ScrollbarLayoutInformation {
9542 /// The bounds of the editor area (excluding the content offset).
9543 editor_bounds: Bounds<Pixels>,
9544 /// The available range to scroll within the document.
9545 scroll_range: Size<Pixels>,
9546 /// The space available for one glyph in the editor.
9547 glyph_grid_cell: Size<Pixels>,
9548}
9549
9550impl ScrollbarLayoutInformation {
9551 pub fn new(
9552 editor_bounds: Bounds<Pixels>,
9553 glyph_grid_cell: Size<Pixels>,
9554 document_size: Size<Pixels>,
9555 longest_line_blame_width: Pixels,
9556 settings: &EditorSettings,
9557 ) -> Self {
9558 let vertical_overscroll = match settings.scroll_beyond_last_line {
9559 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
9560 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
9561 ScrollBeyondLastLine::VerticalScrollMargin => {
9562 (1.0 + settings.vertical_scroll_margin) * glyph_grid_cell.height
9563 }
9564 };
9565
9566 let overscroll = size(longest_line_blame_width, vertical_overscroll);
9567
9568 ScrollbarLayoutInformation {
9569 editor_bounds,
9570 scroll_range: document_size + overscroll,
9571 glyph_grid_cell,
9572 }
9573 }
9574}
9575
9576impl IntoElement for EditorElement {
9577 type Element = Self;
9578
9579 fn into_element(self) -> Self::Element {
9580 self
9581 }
9582}
9583
9584pub struct EditorLayout {
9585 position_map: Rc<PositionMap>,
9586 hitbox: Hitbox,
9587 gutter_hitbox: Hitbox,
9588 content_origin: gpui::Point<Pixels>,
9589 scrollbars_layout: Option<EditorScrollbars>,
9590 minimap: Option<MinimapLayout>,
9591 mode: EditorMode,
9592 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
9593 indent_guides: Option<Vec<IndentGuideLayout>>,
9594 visible_display_row_range: Range<DisplayRow>,
9595 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
9596 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
9597 line_elements: SmallVec<[AnyElement; 1]>,
9598 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
9599 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
9600 blamed_display_rows: Option<Vec<AnyElement>>,
9601 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
9602 inline_blame_layout: Option<InlineBlameLayout>,
9603 inline_code_actions: Option<AnyElement>,
9604 blocks: Vec<BlockLayout>,
9605 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
9606 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
9607 redacted_ranges: Vec<Range<DisplayPoint>>,
9608 cursors: Vec<(DisplayPoint, Hsla)>,
9609 visible_cursors: Vec<CursorLayout>,
9610 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
9611 test_indicators: Vec<AnyElement>,
9612 breakpoints: Vec<AnyElement>,
9613 crease_toggles: Vec<Option<AnyElement>>,
9614 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
9615 diff_hunk_controls: Vec<AnyElement>,
9616 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
9617 edit_prediction_popover: Option<AnyElement>,
9618 mouse_context_menu: Option<AnyElement>,
9619 tab_invisible: ShapedLine,
9620 space_invisible: ShapedLine,
9621 sticky_buffer_header: Option<AnyElement>,
9622 document_colors: Option<(DocumentColorsRenderMode, Vec<(Range<DisplayPoint>, Hsla)>)>,
9623}
9624
9625impl EditorLayout {
9626 fn line_end_overshoot(&self) -> Pixels {
9627 0.15 * self.position_map.line_height
9628 }
9629}
9630
9631struct LineNumberLayout {
9632 shaped_line: ShapedLine,
9633 hitbox: Option<Hitbox>,
9634}
9635
9636struct ColoredRange<T> {
9637 start: T,
9638 end: T,
9639 color: Hsla,
9640}
9641
9642impl Along for ScrollbarAxes {
9643 type Unit = bool;
9644
9645 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
9646 match axis {
9647 ScrollbarAxis::Horizontal => self.horizontal,
9648 ScrollbarAxis::Vertical => self.vertical,
9649 }
9650 }
9651
9652 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
9653 match axis {
9654 ScrollbarAxis::Horizontal => ScrollbarAxes {
9655 horizontal: f(self.horizontal),
9656 vertical: self.vertical,
9657 },
9658 ScrollbarAxis::Vertical => ScrollbarAxes {
9659 horizontal: self.horizontal,
9660 vertical: f(self.vertical),
9661 },
9662 }
9663 }
9664}
9665
9666#[derive(Clone)]
9667struct EditorScrollbars {
9668 pub vertical: Option<ScrollbarLayout>,
9669 pub horizontal: Option<ScrollbarLayout>,
9670 pub visible: bool,
9671}
9672
9673impl EditorScrollbars {
9674 pub fn from_scrollbar_axes(
9675 show_scrollbar: ScrollbarAxes,
9676 layout_information: &ScrollbarLayoutInformation,
9677 content_offset: gpui::Point<Pixels>,
9678 scroll_position: gpui::Point<f32>,
9679 scrollbar_width: Pixels,
9680 right_margin: Pixels,
9681 editor_width: Pixels,
9682 show_scrollbars: bool,
9683 scrollbar_state: Option<&ActiveScrollbarState>,
9684 window: &mut Window,
9685 ) -> Self {
9686 let ScrollbarLayoutInformation {
9687 editor_bounds,
9688 scroll_range,
9689 glyph_grid_cell,
9690 } = layout_information;
9691
9692 let viewport_size = size(editor_width, editor_bounds.size.height);
9693
9694 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
9695 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
9696 Corner::BottomLeft,
9697 editor_bounds.bottom_left(),
9698 size(
9699 // The horizontal viewport size differs from the space available for the
9700 // horizontal scrollbar, so we have to manually stitch it together here.
9701 editor_bounds.size.width - right_margin,
9702 scrollbar_width,
9703 ),
9704 ),
9705 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
9706 Corner::TopRight,
9707 editor_bounds.top_right(),
9708 size(scrollbar_width, viewport_size.height),
9709 ),
9710 };
9711
9712 let mut create_scrollbar_layout = |axis| {
9713 let viewport_size = viewport_size.along(axis);
9714 let scroll_range = scroll_range.along(axis);
9715
9716 // We always want a vertical scrollbar track for scrollbar diagnostic visibility.
9717 (show_scrollbar.along(axis)
9718 && (axis == ScrollbarAxis::Vertical || scroll_range > viewport_size))
9719 .then(|| {
9720 ScrollbarLayout::new(
9721 window.insert_hitbox(scrollbar_bounds_for(axis), HitboxBehavior::Normal),
9722 viewport_size,
9723 scroll_range,
9724 glyph_grid_cell.along(axis),
9725 content_offset.along(axis),
9726 scroll_position.along(axis),
9727 show_scrollbars,
9728 axis,
9729 )
9730 .with_thumb_state(
9731 scrollbar_state.and_then(|state| state.thumb_state_for_axis(axis)),
9732 )
9733 })
9734 };
9735
9736 Self {
9737 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
9738 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
9739 visible: show_scrollbars,
9740 }
9741 }
9742
9743 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
9744 [
9745 (&self.vertical, ScrollbarAxis::Vertical),
9746 (&self.horizontal, ScrollbarAxis::Horizontal),
9747 ]
9748 .into_iter()
9749 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
9750 }
9751
9752 /// Returns the currently hovered scrollbar axis, if any.
9753 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
9754 self.iter_scrollbars()
9755 .find(|s| s.0.hitbox.is_hovered(window))
9756 }
9757}
9758
9759#[derive(Clone)]
9760struct ScrollbarLayout {
9761 hitbox: Hitbox,
9762 visible_range: Range<f32>,
9763 text_unit_size: Pixels,
9764 thumb_bounds: Option<Bounds<Pixels>>,
9765 thumb_state: ScrollbarThumbState,
9766}
9767
9768impl ScrollbarLayout {
9769 const BORDER_WIDTH: Pixels = px(1.0);
9770 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
9771 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
9772 const MIN_THUMB_SIZE: Pixels = px(25.0);
9773
9774 fn new(
9775 scrollbar_track_hitbox: Hitbox,
9776 viewport_size: Pixels,
9777 scroll_range: Pixels,
9778 glyph_space: Pixels,
9779 content_offset: Pixels,
9780 scroll_position: f32,
9781 show_thumb: bool,
9782 axis: ScrollbarAxis,
9783 ) -> Self {
9784 let track_bounds = scrollbar_track_hitbox.bounds;
9785 // The length of the track available to the scrollbar thumb. We deliberately
9786 // exclude the content size here so that the thumb aligns with the content.
9787 let track_length = track_bounds.size.along(axis) - content_offset;
9788
9789 Self::new_with_hitbox_and_track_length(
9790 scrollbar_track_hitbox,
9791 track_length,
9792 viewport_size,
9793 scroll_range,
9794 glyph_space,
9795 content_offset,
9796 scroll_position,
9797 show_thumb,
9798 axis,
9799 )
9800 }
9801
9802 fn for_minimap(
9803 minimap_track_hitbox: Hitbox,
9804 visible_lines: f32,
9805 total_editor_lines: f32,
9806 minimap_line_height: Pixels,
9807 scroll_position: f32,
9808 minimap_scroll_top: f32,
9809 show_thumb: bool,
9810 ) -> Self {
9811 // The scrollbar thumb size is calculated as
9812 // (visible_content/total_content) Γ scrollbar_track_length.
9813 //
9814 // For the minimap's thumb layout, we leverage this by setting the
9815 // scrollbar track length to the entire document size (using minimap line
9816 // height). This creates a thumb that exactly represents the editor
9817 // viewport scaled to minimap proportions.
9818 //
9819 // We adjust the thumb position relative to `minimap_scroll_top` to
9820 // accommodate for the deliberately oversized track.
9821 //
9822 // This approach ensures that the minimap thumb accurately reflects the
9823 // editor's current scroll position whilst nicely synchronizing the minimap
9824 // thumb and scrollbar thumb.
9825 let scroll_range = total_editor_lines * minimap_line_height;
9826 let viewport_size = visible_lines * minimap_line_height;
9827
9828 let track_top_offset = -minimap_scroll_top * minimap_line_height;
9829
9830 Self::new_with_hitbox_and_track_length(
9831 minimap_track_hitbox,
9832 scroll_range,
9833 viewport_size,
9834 scroll_range,
9835 minimap_line_height,
9836 track_top_offset,
9837 scroll_position,
9838 show_thumb,
9839 ScrollbarAxis::Vertical,
9840 )
9841 }
9842
9843 fn new_with_hitbox_and_track_length(
9844 scrollbar_track_hitbox: Hitbox,
9845 track_length: Pixels,
9846 viewport_size: Pixels,
9847 scroll_range: Pixels,
9848 glyph_space: Pixels,
9849 content_offset: Pixels,
9850 scroll_position: f32,
9851 show_thumb: bool,
9852 axis: ScrollbarAxis,
9853 ) -> Self {
9854 let text_units_per_page = viewport_size / glyph_space;
9855 let visible_range = scroll_position..scroll_position + text_units_per_page;
9856 let total_text_units = scroll_range / glyph_space;
9857
9858 let thumb_percentage = text_units_per_page / total_text_units;
9859 let thumb_size = (track_length * thumb_percentage)
9860 .max(ScrollbarLayout::MIN_THUMB_SIZE)
9861 .min(track_length);
9862
9863 let text_unit_divisor = (total_text_units - text_units_per_page).max(0.);
9864
9865 let content_larger_than_viewport = text_unit_divisor > 0.;
9866
9867 let text_unit_size = if content_larger_than_viewport {
9868 (track_length - thumb_size) / text_unit_divisor
9869 } else {
9870 glyph_space
9871 };
9872
9873 let thumb_bounds = (show_thumb && content_larger_than_viewport).then(|| {
9874 Self::thumb_bounds(
9875 &scrollbar_track_hitbox,
9876 content_offset,
9877 visible_range.start,
9878 text_unit_size,
9879 thumb_size,
9880 axis,
9881 )
9882 });
9883
9884 ScrollbarLayout {
9885 hitbox: scrollbar_track_hitbox,
9886 visible_range,
9887 text_unit_size,
9888 thumb_bounds,
9889 thumb_state: Default::default(),
9890 }
9891 }
9892
9893 fn with_thumb_state(self, thumb_state: Option<ScrollbarThumbState>) -> Self {
9894 if let Some(thumb_state) = thumb_state {
9895 Self {
9896 thumb_state,
9897 ..self
9898 }
9899 } else {
9900 self
9901 }
9902 }
9903
9904 fn thumb_bounds(
9905 scrollbar_track: &Hitbox,
9906 content_offset: Pixels,
9907 visible_range_start: f32,
9908 text_unit_size: Pixels,
9909 thumb_size: Pixels,
9910 axis: ScrollbarAxis,
9911 ) -> Bounds<Pixels> {
9912 let thumb_origin = scrollbar_track.origin.apply_along(axis, |origin| {
9913 origin + content_offset + visible_range_start * text_unit_size
9914 });
9915 Bounds::new(
9916 thumb_origin,
9917 scrollbar_track.size.apply_along(axis, |_| thumb_size),
9918 )
9919 }
9920
9921 fn thumb_hovered(&self, position: &gpui::Point<Pixels>) -> bool {
9922 self.thumb_bounds
9923 .is_some_and(|bounds| bounds.contains(position))
9924 }
9925
9926 fn marker_quads_for_ranges(
9927 &self,
9928 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
9929 column: Option<usize>,
9930 ) -> Vec<PaintQuad> {
9931 struct MinMax {
9932 min: Pixels,
9933 max: Pixels,
9934 }
9935 let (x_range, height_limit) = if let Some(column) = column {
9936 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
9937 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
9938 let end = start + column_width;
9939 (
9940 Range { start, end },
9941 MinMax {
9942 min: Self::MIN_MARKER_HEIGHT,
9943 max: px(f32::MAX),
9944 },
9945 )
9946 } else {
9947 (
9948 Range {
9949 start: Self::BORDER_WIDTH,
9950 end: self.hitbox.size.width,
9951 },
9952 MinMax {
9953 min: Self::LINE_MARKER_HEIGHT,
9954 max: Self::LINE_MARKER_HEIGHT,
9955 },
9956 )
9957 };
9958
9959 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
9960 let mut pixel_ranges = row_ranges
9961 .into_iter()
9962 .map(|range| {
9963 let start_y = row_to_y(range.start);
9964 let end_y = row_to_y(range.end)
9965 + self
9966 .text_unit_size
9967 .max(height_limit.min)
9968 .min(height_limit.max);
9969 ColoredRange {
9970 start: start_y,
9971 end: end_y,
9972 color: range.color,
9973 }
9974 })
9975 .peekable();
9976
9977 let mut quads = Vec::new();
9978 while let Some(mut pixel_range) = pixel_ranges.next() {
9979 while let Some(next_pixel_range) = pixel_ranges.peek() {
9980 if pixel_range.end >= next_pixel_range.start - px(1.0)
9981 && pixel_range.color == next_pixel_range.color
9982 {
9983 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
9984 pixel_ranges.next();
9985 } else {
9986 break;
9987 }
9988 }
9989
9990 let bounds = Bounds::from_corners(
9991 point(x_range.start, pixel_range.start),
9992 point(x_range.end, pixel_range.end),
9993 );
9994 quads.push(quad(
9995 bounds,
9996 Corners::default(),
9997 pixel_range.color,
9998 Edges::default(),
9999 Hsla::transparent_black(),
10000 BorderStyle::default(),
10001 ));
10002 }
10003
10004 quads
10005 }
10006}
10007
10008struct MinimapLayout {
10009 pub minimap: AnyElement,
10010 pub thumb_layout: ScrollbarLayout,
10011 pub minimap_scroll_top: f32,
10012 pub minimap_line_height: Pixels,
10013 pub thumb_border_style: MinimapThumbBorder,
10014 pub max_scroll_top: f32,
10015}
10016
10017impl MinimapLayout {
10018 /// The minimum width of the minimap in columns. If the minimap is smaller than this, it will be hidden.
10019 const MINIMAP_MIN_WIDTH_COLUMNS: f32 = 20.;
10020 /// The minimap width as a percentage of the editor width.
10021 const MINIMAP_WIDTH_PCT: f32 = 0.15;
10022 /// Calculates the scroll top offset the minimap editor has to have based on the
10023 /// current scroll progress.
10024 fn calculate_minimap_top_offset(
10025 document_lines: f32,
10026 visible_editor_lines: f32,
10027 visible_minimap_lines: f32,
10028 scroll_position: f32,
10029 ) -> f32 {
10030 let non_visible_document_lines = (document_lines - visible_editor_lines).max(0.);
10031 if non_visible_document_lines == 0. {
10032 0.
10033 } else {
10034 let scroll_percentage = (scroll_position / non_visible_document_lines).clamp(0., 1.);
10035 scroll_percentage * (document_lines - visible_minimap_lines).max(0.)
10036 }
10037 }
10038}
10039
10040struct CreaseTrailerLayout {
10041 element: AnyElement,
10042 bounds: Bounds<Pixels>,
10043}
10044
10045pub(crate) struct PositionMap {
10046 pub size: Size<Pixels>,
10047 pub line_height: Pixels,
10048 pub scroll_pixel_position: gpui::Point<Pixels>,
10049 pub scroll_max: gpui::Point<f32>,
10050 pub em_width: Pixels,
10051 pub em_advance: Pixels,
10052 pub visible_row_range: Range<DisplayRow>,
10053 pub line_layouts: Vec<LineWithInvisibles>,
10054 pub snapshot: EditorSnapshot,
10055 pub text_hitbox: Hitbox,
10056 pub gutter_hitbox: Hitbox,
10057 pub inline_blame_bounds: Option<(Bounds<Pixels>, BufferId, BlameEntry)>,
10058 pub display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
10059 pub diff_hunk_control_bounds: Vec<(DisplayRow, Bounds<Pixels>)>,
10060}
10061
10062#[derive(Debug, Copy, Clone)]
10063pub struct PointForPosition {
10064 pub previous_valid: DisplayPoint,
10065 pub next_valid: DisplayPoint,
10066 pub exact_unclipped: DisplayPoint,
10067 pub column_overshoot_after_line_end: u32,
10068}
10069
10070impl PointForPosition {
10071 pub fn as_valid(&self) -> Option<DisplayPoint> {
10072 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
10073 Some(self.previous_valid)
10074 } else {
10075 None
10076 }
10077 }
10078
10079 pub fn intersects_selection(&self, selection: &Selection<DisplayPoint>) -> bool {
10080 let Some(valid_point) = self.as_valid() else {
10081 return false;
10082 };
10083 let range = selection.range();
10084
10085 let candidate_row = valid_point.row();
10086 let candidate_col = valid_point.column();
10087
10088 let start_row = range.start.row();
10089 let start_col = range.start.column();
10090 let end_row = range.end.row();
10091 let end_col = range.end.column();
10092
10093 if candidate_row < start_row || candidate_row > end_row {
10094 false
10095 } else if start_row == end_row {
10096 candidate_col >= start_col && candidate_col < end_col
10097 } else if candidate_row == start_row {
10098 candidate_col >= start_col
10099 } else if candidate_row == end_row {
10100 candidate_col < end_col
10101 } else {
10102 true
10103 }
10104 }
10105}
10106
10107impl PositionMap {
10108 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
10109 let text_bounds = self.text_hitbox.bounds;
10110 let scroll_position = self.snapshot.scroll_position();
10111 let position = position - text_bounds.origin;
10112 let y = position.y.max(px(0.)).min(self.size.height);
10113 let x = position.x + (scroll_position.x * self.em_advance);
10114 let row = ((y / self.line_height) + scroll_position.y) as u32;
10115
10116 let (column, x_overshoot_after_line_end) = if let Some(line) = self
10117 .line_layouts
10118 .get(row as usize - scroll_position.y as usize)
10119 {
10120 if let Some(ix) = line.index_for_x(x) {
10121 (ix as u32, px(0.))
10122 } else {
10123 (line.len as u32, px(0.).max(x - line.width))
10124 }
10125 } else {
10126 (0, x)
10127 };
10128
10129 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
10130 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
10131 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
10132
10133 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
10134 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
10135 PointForPosition {
10136 previous_valid,
10137 next_valid,
10138 exact_unclipped,
10139 column_overshoot_after_line_end,
10140 }
10141 }
10142}
10143
10144struct BlockLayout {
10145 id: BlockId,
10146 x_offset: Pixels,
10147 row: Option<DisplayRow>,
10148 element: AnyElement,
10149 available_space: Size<AvailableSpace>,
10150 style: BlockStyle,
10151 overlaps_gutter: bool,
10152 is_buffer_header: bool,
10153}
10154
10155pub fn layout_line(
10156 row: DisplayRow,
10157 snapshot: &EditorSnapshot,
10158 style: &EditorStyle,
10159 text_width: Pixels,
10160 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
10161 window: &mut Window,
10162 cx: &mut App,
10163) -> LineWithInvisibles {
10164 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
10165 LineWithInvisibles::from_chunks(
10166 chunks,
10167 style,
10168 MAX_LINE_LEN,
10169 1,
10170 &snapshot.mode,
10171 text_width,
10172 is_row_soft_wrapped,
10173 &[],
10174 window,
10175 cx,
10176 )
10177 .pop()
10178 .unwrap()
10179}
10180
10181#[derive(Debug)]
10182pub struct IndentGuideLayout {
10183 origin: gpui::Point<Pixels>,
10184 length: Pixels,
10185 single_indent_width: Pixels,
10186 depth: u32,
10187 active: bool,
10188 settings: IndentGuideSettings,
10189}
10190
10191pub struct CursorLayout {
10192 origin: gpui::Point<Pixels>,
10193 block_width: Pixels,
10194 line_height: Pixels,
10195 color: Hsla,
10196 shape: CursorShape,
10197 block_text: Option<ShapedLine>,
10198 cursor_name: Option<AnyElement>,
10199}
10200
10201#[derive(Debug)]
10202pub struct CursorName {
10203 string: SharedString,
10204 color: Hsla,
10205 is_top_row: bool,
10206}
10207
10208impl CursorLayout {
10209 pub fn new(
10210 origin: gpui::Point<Pixels>,
10211 block_width: Pixels,
10212 line_height: Pixels,
10213 color: Hsla,
10214 shape: CursorShape,
10215 block_text: Option<ShapedLine>,
10216 ) -> CursorLayout {
10217 CursorLayout {
10218 origin,
10219 block_width,
10220 line_height,
10221 color,
10222 shape,
10223 block_text,
10224 cursor_name: None,
10225 }
10226 }
10227
10228 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
10229 Bounds {
10230 origin: self.origin + origin,
10231 size: size(self.block_width, self.line_height),
10232 }
10233 }
10234
10235 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
10236 match self.shape {
10237 CursorShape::Bar => Bounds {
10238 origin: self.origin + origin,
10239 size: size(px(2.0), self.line_height),
10240 },
10241 CursorShape::Block | CursorShape::Hollow => Bounds {
10242 origin: self.origin + origin,
10243 size: size(self.block_width, self.line_height),
10244 },
10245 CursorShape::Underline => Bounds {
10246 origin: self.origin
10247 + origin
10248 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
10249 size: size(self.block_width, px(2.0)),
10250 },
10251 }
10252 }
10253
10254 pub fn layout(
10255 &mut self,
10256 origin: gpui::Point<Pixels>,
10257 cursor_name: Option<CursorName>,
10258 window: &mut Window,
10259 cx: &mut App,
10260 ) {
10261 if let Some(cursor_name) = cursor_name {
10262 let bounds = self.bounds(origin);
10263 let text_size = self.line_height / 1.5;
10264
10265 let name_origin = if cursor_name.is_top_row {
10266 point(bounds.right() - px(1.), bounds.top())
10267 } else {
10268 match self.shape {
10269 CursorShape::Bar => point(
10270 bounds.right() - px(2.),
10271 bounds.top() - text_size / 2. - px(1.),
10272 ),
10273 _ => point(
10274 bounds.right() - px(1.),
10275 bounds.top() - text_size / 2. - px(1.),
10276 ),
10277 }
10278 };
10279 let mut name_element = div()
10280 .bg(self.color)
10281 .text_size(text_size)
10282 .px_0p5()
10283 .line_height(text_size + px(2.))
10284 .text_color(cursor_name.color)
10285 .child(cursor_name.string)
10286 .into_any_element();
10287
10288 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
10289
10290 self.cursor_name = Some(name_element);
10291 }
10292 }
10293
10294 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
10295 let bounds = self.bounds(origin);
10296
10297 //Draw background or border quad
10298 let cursor = if matches!(self.shape, CursorShape::Hollow) {
10299 outline(bounds, self.color, BorderStyle::Solid)
10300 } else {
10301 fill(bounds, self.color)
10302 };
10303
10304 if let Some(name) = &mut self.cursor_name {
10305 name.paint(window, cx);
10306 }
10307
10308 window.paint_quad(cursor);
10309
10310 if let Some(block_text) = &self.block_text {
10311 block_text
10312 .paint(self.origin + origin, self.line_height, window, cx)
10313 .log_err();
10314 }
10315 }
10316
10317 pub fn shape(&self) -> CursorShape {
10318 self.shape
10319 }
10320}
10321
10322#[derive(Debug)]
10323pub struct HighlightedRange {
10324 pub start_y: Pixels,
10325 pub line_height: Pixels,
10326 pub lines: Vec<HighlightedRangeLine>,
10327 pub color: Hsla,
10328 pub corner_radius: Pixels,
10329}
10330
10331#[derive(Debug)]
10332pub struct HighlightedRangeLine {
10333 pub start_x: Pixels,
10334 pub end_x: Pixels,
10335}
10336
10337impl HighlightedRange {
10338 pub fn paint(&self, fill: bool, bounds: Bounds<Pixels>, window: &mut Window) {
10339 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
10340 self.paint_lines(self.start_y, &self.lines[0..1], fill, bounds, window);
10341 self.paint_lines(
10342 self.start_y + self.line_height,
10343 &self.lines[1..],
10344 fill,
10345 bounds,
10346 window,
10347 );
10348 } else {
10349 self.paint_lines(self.start_y, &self.lines, fill, bounds, window);
10350 }
10351 }
10352
10353 fn paint_lines(
10354 &self,
10355 start_y: Pixels,
10356 lines: &[HighlightedRangeLine],
10357 fill: bool,
10358 _bounds: Bounds<Pixels>,
10359 window: &mut Window,
10360 ) {
10361 if lines.is_empty() {
10362 return;
10363 }
10364
10365 let first_line = lines.first().unwrap();
10366 let last_line = lines.last().unwrap();
10367
10368 let first_top_left = point(first_line.start_x, start_y);
10369 let first_top_right = point(first_line.end_x, start_y);
10370
10371 let curve_height = point(Pixels::ZERO, self.corner_radius);
10372 let curve_width = |start_x: Pixels, end_x: Pixels| {
10373 let max = (end_x - start_x) / 2.;
10374 let width = if max < self.corner_radius {
10375 max
10376 } else {
10377 self.corner_radius
10378 };
10379
10380 point(width, Pixels::ZERO)
10381 };
10382
10383 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
10384 let mut builder = if fill {
10385 gpui::PathBuilder::fill()
10386 } else {
10387 gpui::PathBuilder::stroke(px(1.))
10388 };
10389 builder.move_to(first_top_right - top_curve_width);
10390 builder.curve_to(first_top_right + curve_height, first_top_right);
10391
10392 let mut iter = lines.iter().enumerate().peekable();
10393 while let Some((ix, line)) = iter.next() {
10394 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
10395
10396 if let Some((_, next_line)) = iter.peek() {
10397 let next_top_right = point(next_line.end_x, bottom_right.y);
10398
10399 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
10400 Ordering::Equal => {
10401 builder.line_to(bottom_right);
10402 }
10403 Ordering::Less => {
10404 let curve_width = curve_width(next_top_right.x, bottom_right.x);
10405 builder.line_to(bottom_right - curve_height);
10406 if self.corner_radius > Pixels::ZERO {
10407 builder.curve_to(bottom_right - curve_width, bottom_right);
10408 }
10409 builder.line_to(next_top_right + curve_width);
10410 if self.corner_radius > Pixels::ZERO {
10411 builder.curve_to(next_top_right + curve_height, next_top_right);
10412 }
10413 }
10414 Ordering::Greater => {
10415 let curve_width = curve_width(bottom_right.x, next_top_right.x);
10416 builder.line_to(bottom_right - curve_height);
10417 if self.corner_radius > Pixels::ZERO {
10418 builder.curve_to(bottom_right + curve_width, bottom_right);
10419 }
10420 builder.line_to(next_top_right - curve_width);
10421 if self.corner_radius > Pixels::ZERO {
10422 builder.curve_to(next_top_right + curve_height, next_top_right);
10423 }
10424 }
10425 }
10426 } else {
10427 let curve_width = curve_width(line.start_x, line.end_x);
10428 builder.line_to(bottom_right - curve_height);
10429 if self.corner_radius > Pixels::ZERO {
10430 builder.curve_to(bottom_right - curve_width, bottom_right);
10431 }
10432
10433 let bottom_left = point(line.start_x, bottom_right.y);
10434 builder.line_to(bottom_left + curve_width);
10435 if self.corner_radius > Pixels::ZERO {
10436 builder.curve_to(bottom_left - curve_height, bottom_left);
10437 }
10438 }
10439 }
10440
10441 if first_line.start_x > last_line.start_x {
10442 let curve_width = curve_width(last_line.start_x, first_line.start_x);
10443 let second_top_left = point(last_line.start_x, start_y + self.line_height);
10444 builder.line_to(second_top_left + curve_height);
10445 if self.corner_radius > Pixels::ZERO {
10446 builder.curve_to(second_top_left + curve_width, second_top_left);
10447 }
10448 let first_bottom_left = point(first_line.start_x, second_top_left.y);
10449 builder.line_to(first_bottom_left - curve_width);
10450 if self.corner_radius > Pixels::ZERO {
10451 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
10452 }
10453 }
10454
10455 builder.line_to(first_top_left + curve_height);
10456 if self.corner_radius > Pixels::ZERO {
10457 builder.curve_to(first_top_left + top_curve_width, first_top_left);
10458 }
10459 builder.line_to(first_top_right - top_curve_width);
10460
10461 if let Ok(path) = builder.build() {
10462 window.paint_path(path, self.color);
10463 }
10464 }
10465}
10466
10467enum CursorPopoverType {
10468 CodeContextMenu,
10469 EditPrediction,
10470}
10471
10472pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
10473 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
10474}
10475
10476fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
10477 (delta.pow(1.2) / 300.0).into()
10478}
10479
10480pub fn register_action<T: Action>(
10481 editor: &Entity<Editor>,
10482 window: &mut Window,
10483 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
10484) {
10485 let editor = editor.clone();
10486 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
10487 let action = action.downcast_ref().unwrap();
10488 if phase == DispatchPhase::Bubble {
10489 editor.update(cx, |editor, cx| {
10490 listener(editor, action, window, cx);
10491 })
10492 }
10493 })
10494}
10495
10496fn compute_auto_height_layout(
10497 editor: &mut Editor,
10498 min_lines: usize,
10499 max_lines: Option<usize>,
10500 max_line_number_width: Pixels,
10501 known_dimensions: Size<Option<Pixels>>,
10502 available_width: AvailableSpace,
10503 window: &mut Window,
10504 cx: &mut Context<Editor>,
10505) -> Option<Size<Pixels>> {
10506 let width = known_dimensions.width.or({
10507 if let AvailableSpace::Definite(available_width) = available_width {
10508 Some(available_width)
10509 } else {
10510 None
10511 }
10512 })?;
10513 if let Some(height) = known_dimensions.height {
10514 return Some(size(width, height));
10515 }
10516
10517 let style = editor.style.as_ref().unwrap();
10518 let font_id = window.text_system().resolve_font(&style.text.font());
10519 let font_size = style.text.font_size.to_pixels(window.rem_size());
10520 let line_height = style.text.line_height_in_pixels(window.rem_size());
10521 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
10522
10523 let mut snapshot = editor.snapshot(window, cx);
10524 let gutter_dimensions = snapshot
10525 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
10526 .or_else(|| {
10527 editor
10528 .offset_content
10529 .then(|| GutterDimensions::default_with_margin(font_id, font_size, cx))
10530 })
10531 .unwrap_or_default();
10532
10533 editor.gutter_dimensions = gutter_dimensions;
10534 let text_width = width - gutter_dimensions.width;
10535 let overscroll = size(em_width, px(0.));
10536
10537 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
10538 if !matches!(editor.soft_wrap_mode(cx), SoftWrap::None)
10539 && editor.set_wrap_width(Some(editor_width), cx)
10540 {
10541 snapshot = editor.snapshot(window, cx);
10542 }
10543
10544 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
10545
10546 let min_height = line_height * min_lines as f32;
10547 let content_height = scroll_height.max(min_height);
10548
10549 let final_height = if let Some(max_lines) = max_lines {
10550 let max_height = line_height * max_lines as f32;
10551 content_height.min(max_height)
10552 } else {
10553 content_height
10554 };
10555
10556 Some(size(width, final_height))
10557}
10558
10559#[cfg(test)]
10560mod tests {
10561 use super::*;
10562 use crate::{
10563 Editor, MultiBuffer, SelectionEffects,
10564 display_map::{BlockPlacement, BlockProperties},
10565 editor_tests::{init_test, update_test_language_settings},
10566 };
10567 use gpui::{TestAppContext, VisualTestContext};
10568 use language::language_settings;
10569 use log::info;
10570 use std::num::NonZeroU32;
10571 use util::test::sample_text;
10572
10573 #[gpui::test]
10574 async fn test_soft_wrap_editor_width_auto_height_editor(cx: &mut TestAppContext) {
10575 init_test(cx, |_| {});
10576
10577 let window = cx.add_window(|window, cx| {
10578 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
10579 let mut editor = Editor::new(
10580 EditorMode::AutoHeight {
10581 min_lines: 1,
10582 max_lines: None,
10583 },
10584 buffer,
10585 None,
10586 window,
10587 cx,
10588 );
10589 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
10590 editor
10591 });
10592 let cx = &mut VisualTestContext::from_window(*window, cx);
10593 let editor = window.root(cx).unwrap();
10594 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10595
10596 for x in 1..=100 {
10597 let (_, state) = cx.draw(
10598 Default::default(),
10599 size(px(200. + 0.13 * x as f32), px(500.)),
10600 |_, _| EditorElement::new(&editor, style.clone()),
10601 );
10602
10603 assert!(
10604 state.position_map.scroll_max.x == 0.,
10605 "Soft wrapped editor should have no horizontal scrolling!"
10606 );
10607 }
10608 }
10609
10610 #[gpui::test]
10611 async fn test_soft_wrap_editor_width_full_editor(cx: &mut TestAppContext) {
10612 init_test(cx, |_| {});
10613
10614 let window = cx.add_window(|window, cx| {
10615 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
10616 let mut editor = Editor::new(EditorMode::full(), buffer, None, window, cx);
10617 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
10618 editor
10619 });
10620 let cx = &mut VisualTestContext::from_window(*window, cx);
10621 let editor = window.root(cx).unwrap();
10622 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10623
10624 for x in 1..=100 {
10625 let (_, state) = cx.draw(
10626 Default::default(),
10627 size(px(200. + 0.13 * x as f32), px(500.)),
10628 |_, _| EditorElement::new(&editor, style.clone()),
10629 );
10630
10631 assert!(
10632 state.position_map.scroll_max.x == 0.,
10633 "Soft wrapped editor should have no horizontal scrolling!"
10634 );
10635 }
10636 }
10637
10638 #[gpui::test]
10639 fn test_shape_line_numbers(cx: &mut TestAppContext) {
10640 init_test(cx, |_| {});
10641 let window = cx.add_window(|window, cx| {
10642 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
10643 Editor::new(EditorMode::full(), buffer, None, window, cx)
10644 });
10645
10646 let editor = window.root(cx).unwrap();
10647 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
10648 let line_height = window
10649 .update(cx, |_, window, _| {
10650 style.text.line_height_in_pixels(window.rem_size())
10651 })
10652 .unwrap();
10653 let element = EditorElement::new(&editor, style);
10654 let snapshot = window
10655 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
10656 .unwrap();
10657
10658 let layouts = cx
10659 .update_window(*window, |_, window, cx| {
10660 element.layout_line_numbers(
10661 None,
10662 GutterDimensions {
10663 left_padding: Pixels::ZERO,
10664 right_padding: Pixels::ZERO,
10665 width: px(30.0),
10666 margin: Pixels::ZERO,
10667 git_blame_entries_width: None,
10668 },
10669 line_height,
10670 gpui::Point::default(),
10671 DisplayRow(0)..DisplayRow(6),
10672 &(0..6)
10673 .map(|row| RowInfo {
10674 buffer_row: Some(row),
10675 ..Default::default()
10676 })
10677 .collect::<Vec<_>>(),
10678 &BTreeMap::default(),
10679 Some(DisplayPoint::new(DisplayRow(0), 0)),
10680 &snapshot,
10681 window,
10682 cx,
10683 )
10684 })
10685 .unwrap();
10686 assert_eq!(layouts.len(), 6);
10687
10688 let relative_rows = window
10689 .update(cx, |editor, window, cx| {
10690 let snapshot = editor.snapshot(window, cx);
10691 element.calculate_relative_line_numbers(
10692 &snapshot,
10693 &(DisplayRow(0)..DisplayRow(6)),
10694 Some(DisplayRow(3)),
10695 )
10696 })
10697 .unwrap();
10698 assert_eq!(relative_rows[&DisplayRow(0)], 3);
10699 assert_eq!(relative_rows[&DisplayRow(1)], 2);
10700 assert_eq!(relative_rows[&DisplayRow(2)], 1);
10701 // current line has no relative number
10702 assert_eq!(relative_rows[&DisplayRow(4)], 1);
10703 assert_eq!(relative_rows[&DisplayRow(5)], 2);
10704
10705 // works if cursor is before screen
10706 let relative_rows = window
10707 .update(cx, |editor, window, cx| {
10708 let snapshot = editor.snapshot(window, cx);
10709 element.calculate_relative_line_numbers(
10710 &snapshot,
10711 &(DisplayRow(3)..DisplayRow(6)),
10712 Some(DisplayRow(1)),
10713 )
10714 })
10715 .unwrap();
10716 assert_eq!(relative_rows.len(), 3);
10717 assert_eq!(relative_rows[&DisplayRow(3)], 2);
10718 assert_eq!(relative_rows[&DisplayRow(4)], 3);
10719 assert_eq!(relative_rows[&DisplayRow(5)], 4);
10720
10721 // works if cursor is after screen
10722 let relative_rows = window
10723 .update(cx, |editor, window, cx| {
10724 let snapshot = editor.snapshot(window, cx);
10725 element.calculate_relative_line_numbers(
10726 &snapshot,
10727 &(DisplayRow(0)..DisplayRow(3)),
10728 Some(DisplayRow(6)),
10729 )
10730 })
10731 .unwrap();
10732 assert_eq!(relative_rows.len(), 3);
10733 assert_eq!(relative_rows[&DisplayRow(0)], 5);
10734 assert_eq!(relative_rows[&DisplayRow(1)], 4);
10735 assert_eq!(relative_rows[&DisplayRow(2)], 3);
10736 }
10737
10738 #[gpui::test]
10739 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
10740 init_test(cx, |_| {});
10741
10742 let window = cx.add_window(|window, cx| {
10743 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
10744 Editor::new(EditorMode::full(), buffer, None, window, cx)
10745 });
10746 let cx = &mut VisualTestContext::from_window(*window, cx);
10747 let editor = window.root(cx).unwrap();
10748 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10749
10750 window
10751 .update(cx, |editor, window, cx| {
10752 editor.cursor_shape = CursorShape::Block;
10753 editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
10754 s.select_ranges([
10755 Point::new(0, 0)..Point::new(1, 0),
10756 Point::new(3, 2)..Point::new(3, 3),
10757 Point::new(5, 6)..Point::new(6, 0),
10758 ]);
10759 });
10760 })
10761 .unwrap();
10762
10763 let (_, state) = cx.draw(
10764 point(px(500.), px(500.)),
10765 size(px(500.), px(500.)),
10766 |_, _| EditorElement::new(&editor, style),
10767 );
10768
10769 assert_eq!(state.selections.len(), 1);
10770 let local_selections = &state.selections[0].1;
10771 assert_eq!(local_selections.len(), 3);
10772 // moves cursor back one line
10773 assert_eq!(
10774 local_selections[0].head,
10775 DisplayPoint::new(DisplayRow(0), 6)
10776 );
10777 assert_eq!(
10778 local_selections[0].range,
10779 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
10780 );
10781
10782 // moves cursor back one column
10783 assert_eq!(
10784 local_selections[1].range,
10785 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
10786 );
10787 assert_eq!(
10788 local_selections[1].head,
10789 DisplayPoint::new(DisplayRow(3), 2)
10790 );
10791
10792 // leaves cursor on the max point
10793 assert_eq!(
10794 local_selections[2].range,
10795 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
10796 );
10797 assert_eq!(
10798 local_selections[2].head,
10799 DisplayPoint::new(DisplayRow(6), 0)
10800 );
10801
10802 // active lines does not include 1 (even though the range of the selection does)
10803 assert_eq!(
10804 state.active_rows.keys().cloned().collect::<Vec<_>>(),
10805 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
10806 );
10807 }
10808
10809 #[gpui::test]
10810 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
10811 init_test(cx, |_| {});
10812
10813 let window = cx.add_window(|window, cx| {
10814 let buffer = MultiBuffer::build_simple("", cx);
10815 Editor::new(EditorMode::full(), buffer, None, window, cx)
10816 });
10817 let cx = &mut VisualTestContext::from_window(*window, cx);
10818 let editor = window.root(cx).unwrap();
10819 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10820 window
10821 .update(cx, |editor, window, cx| {
10822 editor.set_placeholder_text("hello", window, cx);
10823 editor.insert_blocks(
10824 [BlockProperties {
10825 style: BlockStyle::Fixed,
10826 placement: BlockPlacement::Above(Anchor::min()),
10827 height: Some(3),
10828 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
10829 priority: 0,
10830 }],
10831 None,
10832 cx,
10833 );
10834
10835 // Blur the editor so that it displays placeholder text.
10836 window.blur();
10837 })
10838 .unwrap();
10839
10840 let (_, state) = cx.draw(
10841 point(px(500.), px(500.)),
10842 size(px(500.), px(500.)),
10843 |_, _| EditorElement::new(&editor, style),
10844 );
10845 assert_eq!(state.position_map.line_layouts.len(), 4);
10846 assert_eq!(state.line_numbers.len(), 1);
10847 assert_eq!(
10848 state
10849 .line_numbers
10850 .get(&MultiBufferRow(0))
10851 .map(|line_number| line_number.shaped_line.text.as_ref()),
10852 Some("1")
10853 );
10854 }
10855
10856 #[gpui::test]
10857 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
10858 const TAB_SIZE: u32 = 4;
10859
10860 let input_text = "\t \t|\t| a b";
10861 let expected_invisibles = vec![
10862 Invisible::Tab {
10863 line_start_offset: 0,
10864 line_end_offset: TAB_SIZE as usize,
10865 },
10866 Invisible::Whitespace {
10867 line_offset: TAB_SIZE as usize,
10868 },
10869 Invisible::Tab {
10870 line_start_offset: TAB_SIZE as usize + 1,
10871 line_end_offset: TAB_SIZE as usize * 2,
10872 },
10873 Invisible::Tab {
10874 line_start_offset: TAB_SIZE as usize * 2 + 1,
10875 line_end_offset: TAB_SIZE as usize * 3,
10876 },
10877 Invisible::Whitespace {
10878 line_offset: TAB_SIZE as usize * 3 + 1,
10879 },
10880 Invisible::Whitespace {
10881 line_offset: TAB_SIZE as usize * 3 + 3,
10882 },
10883 ];
10884 assert_eq!(
10885 expected_invisibles.len(),
10886 input_text
10887 .chars()
10888 .filter(|initial_char| initial_char.is_whitespace())
10889 .count(),
10890 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
10891 );
10892
10893 for show_line_numbers in [true, false] {
10894 init_test(cx, |s| {
10895 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10896 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
10897 });
10898
10899 let actual_invisibles = collect_invisibles_from_new_editor(
10900 cx,
10901 EditorMode::full(),
10902 input_text,
10903 px(500.0),
10904 show_line_numbers,
10905 );
10906
10907 assert_eq!(expected_invisibles, actual_invisibles);
10908 }
10909 }
10910
10911 #[gpui::test]
10912 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
10913 init_test(cx, |s| {
10914 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10915 s.defaults.tab_size = NonZeroU32::new(4);
10916 });
10917
10918 for editor_mode_without_invisibles in [
10919 EditorMode::SingleLine,
10920 EditorMode::AutoHeight {
10921 min_lines: 1,
10922 max_lines: Some(100),
10923 },
10924 ] {
10925 for show_line_numbers in [true, false] {
10926 let invisibles = collect_invisibles_from_new_editor(
10927 cx,
10928 editor_mode_without_invisibles.clone(),
10929 "\t\t\t| | a b",
10930 px(500.0),
10931 show_line_numbers,
10932 );
10933 assert!(
10934 invisibles.is_empty(),
10935 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
10936 );
10937 }
10938 }
10939 }
10940
10941 #[gpui::test]
10942 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
10943 let tab_size = 4;
10944 let input_text = "a\tbcd ".repeat(9);
10945 let repeated_invisibles = [
10946 Invisible::Tab {
10947 line_start_offset: 1,
10948 line_end_offset: tab_size as usize,
10949 },
10950 Invisible::Whitespace {
10951 line_offset: tab_size as usize + 3,
10952 },
10953 Invisible::Whitespace {
10954 line_offset: tab_size as usize + 4,
10955 },
10956 Invisible::Whitespace {
10957 line_offset: tab_size as usize + 5,
10958 },
10959 Invisible::Whitespace {
10960 line_offset: tab_size as usize + 6,
10961 },
10962 Invisible::Whitespace {
10963 line_offset: tab_size as usize + 7,
10964 },
10965 ];
10966 let expected_invisibles = std::iter::once(repeated_invisibles)
10967 .cycle()
10968 .take(9)
10969 .flatten()
10970 .collect::<Vec<_>>();
10971 assert_eq!(
10972 expected_invisibles.len(),
10973 input_text
10974 .chars()
10975 .filter(|initial_char| initial_char.is_whitespace())
10976 .count(),
10977 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
10978 );
10979 info!("Expected invisibles: {expected_invisibles:?}");
10980
10981 init_test(cx, |_| {});
10982
10983 // Put the same string with repeating whitespace pattern into editors of various size,
10984 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
10985 let resize_step = 10.0;
10986 let mut editor_width = 200.0;
10987 while editor_width <= 1000.0 {
10988 for show_line_numbers in [true, false] {
10989 update_test_language_settings(cx, |s| {
10990 s.defaults.tab_size = NonZeroU32::new(tab_size);
10991 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10992 s.defaults.preferred_line_length = Some(editor_width as u32);
10993 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
10994 });
10995
10996 let actual_invisibles = collect_invisibles_from_new_editor(
10997 cx,
10998 EditorMode::full(),
10999 &input_text,
11000 px(editor_width),
11001 show_line_numbers,
11002 );
11003
11004 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
11005 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
11006 let mut i = 0;
11007 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
11008 i = actual_index;
11009 match expected_invisibles.get(i) {
11010 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
11011 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
11012 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
11013 _ => {
11014 panic!(
11015 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
11016 )
11017 }
11018 },
11019 None => {
11020 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
11021 }
11022 }
11023 }
11024 let missing_expected_invisibles = &expected_invisibles[i + 1..];
11025 assert!(
11026 missing_expected_invisibles.is_empty(),
11027 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
11028 );
11029
11030 editor_width += resize_step;
11031 }
11032 }
11033 }
11034
11035 fn collect_invisibles_from_new_editor(
11036 cx: &mut TestAppContext,
11037 editor_mode: EditorMode,
11038 input_text: &str,
11039 editor_width: Pixels,
11040 show_line_numbers: bool,
11041 ) -> Vec<Invisible> {
11042 info!(
11043 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
11044 editor_width.0
11045 );
11046 let window = cx.add_window(|window, cx| {
11047 let buffer = MultiBuffer::build_simple(input_text, cx);
11048 Editor::new(editor_mode, buffer, None, window, cx)
11049 });
11050 let cx = &mut VisualTestContext::from_window(*window, cx);
11051 let editor = window.root(cx).unwrap();
11052
11053 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
11054 window
11055 .update(cx, |editor, _, cx| {
11056 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
11057 editor.set_wrap_width(Some(editor_width), cx);
11058 editor.set_show_line_numbers(show_line_numbers, cx);
11059 })
11060 .unwrap();
11061 let (_, state) = cx.draw(
11062 point(px(500.), px(500.)),
11063 size(px(500.), px(500.)),
11064 |_, _| EditorElement::new(&editor, style),
11065 );
11066 state
11067 .position_map
11068 .line_layouts
11069 .iter()
11070 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
11071 .cloned()
11072 .collect()
11073 }
11074
11075 #[gpui::test]
11076 fn test_merge_overlapping_ranges() {
11077 let base_bg = Hsla::white();
11078 let color1 = Hsla {
11079 h: 0.0,
11080 s: 0.5,
11081 l: 0.5,
11082 a: 0.5,
11083 };
11084 let color2 = Hsla {
11085 h: 120.0,
11086 s: 0.5,
11087 l: 0.5,
11088 a: 0.5,
11089 };
11090
11091 let display_point = |col| DisplayPoint::new(DisplayRow(0), col);
11092 let cols = |v: &Vec<(Range<DisplayPoint>, Hsla)>| -> Vec<(u32, u32)> {
11093 v.iter()
11094 .map(|(r, _)| (r.start.column(), r.end.column()))
11095 .collect()
11096 };
11097
11098 // Test overlapping ranges blend colors
11099 let overlapping = vec![
11100 (display_point(5)..display_point(15), color1),
11101 (display_point(10)..display_point(20), color2),
11102 ];
11103 let result = EditorElement::merge_overlapping_ranges(overlapping, base_bg);
11104 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
11105
11106 // Test middle segment should have blended color
11107 let blended = Hsla::blend(Hsla::blend(base_bg, color1), color2);
11108 assert_eq!(result[1].1, blended);
11109
11110 // Test adjacent same-color ranges merge
11111 let adjacent_same = vec![
11112 (display_point(5)..display_point(10), color1),
11113 (display_point(10)..display_point(15), color1),
11114 ];
11115 let result = EditorElement::merge_overlapping_ranges(adjacent_same, base_bg);
11116 assert_eq!(cols(&result), vec![(5, 15)]);
11117
11118 // Test contained range splits
11119 let contained = vec![
11120 (display_point(5)..display_point(20), color1),
11121 (display_point(10)..display_point(15), color2),
11122 ];
11123 let result = EditorElement::merge_overlapping_ranges(contained, base_bg);
11124 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
11125
11126 // Test multiple overlaps split at every boundary
11127 let color3 = Hsla {
11128 h: 240.0,
11129 s: 0.5,
11130 l: 0.5,
11131 a: 0.5,
11132 };
11133 let complex = vec![
11134 (display_point(5)..display_point(12), color1),
11135 (display_point(8)..display_point(16), color2),
11136 (display_point(10)..display_point(14), color3),
11137 ];
11138 let result = EditorElement::merge_overlapping_ranges(complex, base_bg);
11139 assert_eq!(
11140 cols(&result),
11141 vec![(5, 8), (8, 10), (10, 12), (12, 14), (14, 16)]
11142 );
11143 }
11144
11145 #[gpui::test]
11146 fn test_bg_segments_per_row() {
11147 let base_bg = Hsla::white();
11148
11149 // Case A: selection spans three display rows: row 1 [5, end), full row 2, row 3 [0, 7)
11150 {
11151 let selection_color = Hsla {
11152 h: 200.0,
11153 s: 0.5,
11154 l: 0.5,
11155 a: 0.5,
11156 };
11157 let player_color = PlayerColor {
11158 cursor: selection_color,
11159 background: selection_color,
11160 selection: selection_color,
11161 };
11162
11163 let spanning_selection = SelectionLayout {
11164 head: DisplayPoint::new(DisplayRow(3), 7),
11165 cursor_shape: CursorShape::Bar,
11166 is_newest: true,
11167 is_local: true,
11168 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 7),
11169 active_rows: DisplayRow(1)..DisplayRow(4),
11170 user_name: None,
11171 };
11172
11173 let selections = vec![(player_color, vec![spanning_selection])];
11174 let result = EditorElement::bg_segments_per_row(
11175 DisplayRow(0)..DisplayRow(5),
11176 &selections,
11177 &[],
11178 base_bg,
11179 );
11180
11181 assert_eq!(result.len(), 5);
11182 assert!(result[0].is_empty());
11183 assert_eq!(result[1].len(), 1);
11184 assert_eq!(result[2].len(), 1);
11185 assert_eq!(result[3].len(), 1);
11186 assert!(result[4].is_empty());
11187
11188 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
11189 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
11190 assert_eq!(result[1][0].0.end.column(), u32::MAX);
11191 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
11192 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
11193 assert_eq!(result[2][0].0.end.column(), u32::MAX);
11194 assert_eq!(result[3][0].0.start, DisplayPoint::new(DisplayRow(3), 0));
11195 assert_eq!(result[3][0].0.end, DisplayPoint::new(DisplayRow(3), 7));
11196 }
11197
11198 // Case B: selection ends exactly at the start of row 3, excluding row 3
11199 {
11200 let selection_color = Hsla {
11201 h: 120.0,
11202 s: 0.5,
11203 l: 0.5,
11204 a: 0.5,
11205 };
11206 let player_color = PlayerColor {
11207 cursor: selection_color,
11208 background: selection_color,
11209 selection: selection_color,
11210 };
11211
11212 let selection = SelectionLayout {
11213 head: DisplayPoint::new(DisplayRow(2), 0),
11214 cursor_shape: CursorShape::Bar,
11215 is_newest: true,
11216 is_local: true,
11217 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 0),
11218 active_rows: DisplayRow(1)..DisplayRow(3),
11219 user_name: None,
11220 };
11221
11222 let selections = vec![(player_color, vec![selection])];
11223 let result = EditorElement::bg_segments_per_row(
11224 DisplayRow(0)..DisplayRow(4),
11225 &selections,
11226 &[],
11227 base_bg,
11228 );
11229
11230 assert_eq!(result.len(), 4);
11231 assert!(result[0].is_empty());
11232 assert_eq!(result[1].len(), 1);
11233 assert_eq!(result[2].len(), 1);
11234 assert!(result[3].is_empty());
11235
11236 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
11237 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
11238 assert_eq!(result[1][0].0.end.column(), u32::MAX);
11239 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
11240 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
11241 assert_eq!(result[2][0].0.end.column(), u32::MAX);
11242 }
11243 }
11244
11245 #[cfg(test)]
11246 fn generate_test_run(len: usize, color: Hsla) -> TextRun {
11247 TextRun {
11248 len,
11249 font: gpui::font(".SystemUIFont"),
11250 color,
11251 background_color: None,
11252 underline: None,
11253 strikethrough: None,
11254 }
11255 }
11256
11257 #[gpui::test]
11258 fn test_split_runs_by_bg_segments(cx: &mut gpui::TestAppContext) {
11259 init_test(cx, |_| {});
11260
11261 let dx = |start: u32, end: u32| {
11262 DisplayPoint::new(DisplayRow(0), start)..DisplayPoint::new(DisplayRow(0), end)
11263 };
11264
11265 let text_color = Hsla {
11266 h: 210.0,
11267 s: 0.1,
11268 l: 0.4,
11269 a: 1.0,
11270 };
11271 let bg_1 = Hsla {
11272 h: 30.0,
11273 s: 0.6,
11274 l: 0.8,
11275 a: 1.0,
11276 };
11277 let bg_2 = Hsla {
11278 h: 200.0,
11279 s: 0.6,
11280 l: 0.2,
11281 a: 1.0,
11282 };
11283 let min_contrast = 45.0;
11284 let adjusted_bg1 = ensure_minimum_contrast(text_color, bg_1, min_contrast);
11285 let adjusted_bg2 = ensure_minimum_contrast(text_color, bg_2, min_contrast);
11286
11287 // Case A: single run; disjoint segments inside the run
11288 {
11289 let runs = vec![generate_test_run(20, text_color)];
11290 let segs = vec![(dx(5, 10), bg_1), (dx(12, 16), bg_2)];
11291 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
11292 // Expected slices: [0,5) [5,10) [10,12) [12,16) [16,20)
11293 assert_eq!(
11294 out.iter().map(|r| r.len).collect::<Vec<_>>(),
11295 vec![5, 5, 2, 4, 4]
11296 );
11297 assert_eq!(out[0].color, text_color);
11298 assert_eq!(out[1].color, adjusted_bg1);
11299 assert_eq!(out[2].color, text_color);
11300 assert_eq!(out[3].color, adjusted_bg2);
11301 assert_eq!(out[4].color, text_color);
11302 }
11303
11304 // Case B: multiple runs; segment extends to end of line (u32::MAX)
11305 {
11306 let runs = vec![
11307 generate_test_run(8, text_color),
11308 generate_test_run(7, text_color),
11309 ];
11310 let segs = vec![(dx(6, u32::MAX), bg_1)];
11311 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
11312 // Expected slices across runs: [0,6) [6,8) | [0,7)
11313 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![6, 2, 7]);
11314 assert_eq!(out[0].color, text_color);
11315 assert_eq!(out[1].color, adjusted_bg1);
11316 assert_eq!(out[2].color, adjusted_bg1);
11317 }
11318
11319 // Case C: multi-byte characters
11320 {
11321 // for text: "Hello π δΈη!"
11322 let runs = vec![
11323 generate_test_run(5, text_color), // "Hello"
11324 generate_test_run(6, text_color), // " π "
11325 generate_test_run(6, text_color), // "δΈη"
11326 generate_test_run(1, text_color), // "!"
11327 ];
11328 // selecting "π δΈ"
11329 let segs = vec![(dx(6, 14), bg_1)];
11330 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
11331 // "Hello" | " " | "π " | "δΈ" | "η" | "!"
11332 assert_eq!(
11333 out.iter().map(|r| r.len).collect::<Vec<_>>(),
11334 vec![5, 1, 5, 3, 3, 1]
11335 );
11336 assert_eq!(out[0].color, text_color); // "Hello"
11337 assert_eq!(out[2].color, adjusted_bg1); // "π "
11338 assert_eq!(out[3].color, adjusted_bg1); // "δΈ"
11339 assert_eq!(out[4].color, text_color); // "η"
11340 assert_eq!(out[5].color, text_color); // "!"
11341 }
11342
11343 // Case D: split multiple consecutive text runs with segments
11344 {
11345 let segs = vec![
11346 (dx(2, 4), bg_1), // selecting "cd"
11347 (dx(4, 8), bg_2), // selecting "efgh"
11348 (dx(9, 11), bg_1), // selecting "jk"
11349 (dx(12, 16), bg_2), // selecting "mnop"
11350 (dx(18, 19), bg_1), // selecting "s"
11351 ];
11352
11353 // for text: "abcdef"
11354 let runs = vec![
11355 generate_test_run(2, text_color), // ab
11356 generate_test_run(4, text_color), // cdef
11357 ];
11358 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
11359 // new splits "ab", "cd", "ef"
11360 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![2, 2, 2]);
11361 assert_eq!(out[0].color, text_color);
11362 assert_eq!(out[1].color, adjusted_bg1);
11363 assert_eq!(out[2].color, adjusted_bg2);
11364
11365 // for text: "ghijklmn"
11366 let runs = vec![
11367 generate_test_run(3, text_color), // ghi
11368 generate_test_run(2, text_color), // jk
11369 generate_test_run(3, text_color), // lmn
11370 ];
11371 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 6); // 2 + 4 from first run
11372 // new splits "gh", "i", "jk", "l", "mn"
11373 assert_eq!(
11374 out.iter().map(|r| r.len).collect::<Vec<_>>(),
11375 vec![2, 1, 2, 1, 2]
11376 );
11377 assert_eq!(out[0].color, adjusted_bg2);
11378 assert_eq!(out[1].color, text_color);
11379 assert_eq!(out[2].color, adjusted_bg1);
11380 assert_eq!(out[3].color, text_color);
11381 assert_eq!(out[4].color, adjusted_bg2);
11382
11383 // for text: "opqrs"
11384 let runs = vec![
11385 generate_test_run(1, text_color), // o
11386 generate_test_run(4, text_color), // pqrs
11387 ];
11388 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 14); // 6 + 3 + 2 + 3 from first two runs
11389 // new splits "o", "p", "qr", "s"
11390 assert_eq!(
11391 out.iter().map(|r| r.len).collect::<Vec<_>>(),
11392 vec![1, 1, 2, 1]
11393 );
11394 assert_eq!(out[0].color, adjusted_bg2);
11395 assert_eq!(out[1].color, adjusted_bg2);
11396 assert_eq!(out[2].color, text_color);
11397 assert_eq!(out[3].color, adjusted_bg1);
11398 }
11399 }
11400}