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(include_root, cx);
3786 let (parent_path, filename) = if let Some(path) = &relative_path {
3787 if let Some(path_style) = path_style {
3788 let (dir, file_name) = path_style.split(path);
3789 (dir.map(|dir| dir.to_owned()), Some(file_name.to_owned()))
3790 } else {
3791 (None, Some(path.clone()))
3792 }
3793 } else {
3794 (None, None)
3795 };
3796 let focus_handle = editor.focus_handle(cx);
3797 let colors = cx.theme().colors();
3798
3799 let header = div()
3800 .p_1()
3801 .w_full()
3802 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
3803 .child(
3804 h_flex()
3805 .size_full()
3806 .gap_2()
3807 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
3808 .pl_0p5()
3809 .pr_5()
3810 .rounded_sm()
3811 .when(is_sticky, |el| el.shadow_md())
3812 .border_1()
3813 .map(|div| {
3814 let border_color = if is_selected
3815 && is_folded
3816 && focus_handle.contains_focused(window, cx)
3817 {
3818 colors.border_focused
3819 } else {
3820 colors.border
3821 };
3822 div.border_color(border_color)
3823 })
3824 .bg(colors.editor_subheader_background)
3825 .hover(|style| style.bg(colors.element_hover))
3826 .map(|header| {
3827 let editor = self.editor.clone();
3828 let buffer_id = for_excerpt.buffer_id;
3829 let toggle_chevron_icon =
3830 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
3831 header.child(
3832 div()
3833 .hover(|style| style.bg(colors.element_selected))
3834 .rounded_xs()
3835 .child(
3836 ButtonLike::new("toggle-buffer-fold")
3837 .style(ui::ButtonStyle::Transparent)
3838 .height(px(28.).into())
3839 .width(px(28.))
3840 .children(toggle_chevron_icon)
3841 .tooltip({
3842 let focus_handle = focus_handle.clone();
3843 move |window, cx| {
3844 Tooltip::with_meta_in(
3845 "Toggle Excerpt Fold",
3846 Some(&ToggleFold),
3847 if cfg!(target_os = "macos") {
3848 "Option+click to toggle all"
3849 } else {
3850 "Alt+click to toggle all"
3851 },
3852 &focus_handle,
3853 window,
3854 cx,
3855 )
3856 }
3857 })
3858 .on_click(move |event, window, cx| {
3859 if event.modifiers().alt {
3860 // Alt+click toggles all buffers
3861 editor.update(cx, |editor, cx| {
3862 editor.toggle_fold_all(
3863 &ToggleFoldAll,
3864 window,
3865 cx,
3866 );
3867 });
3868 } else {
3869 // Regular click toggles single buffer
3870 if is_folded {
3871 editor.update(cx, |editor, cx| {
3872 editor.unfold_buffer(buffer_id, cx);
3873 });
3874 } else {
3875 editor.update(cx, |editor, cx| {
3876 editor.fold_buffer(buffer_id, cx);
3877 });
3878 }
3879 }
3880 }),
3881 ),
3882 )
3883 })
3884 .children(
3885 editor
3886 .addons
3887 .values()
3888 .filter_map(|addon| {
3889 addon.render_buffer_header_controls(for_excerpt, window, cx)
3890 })
3891 .take(1),
3892 )
3893 .child(
3894 h_flex()
3895 .size(Pixels(12.0))
3896 .justify_center()
3897 .children(indicator),
3898 )
3899 .child(
3900 h_flex()
3901 .cursor_pointer()
3902 .id("path header block")
3903 .size_full()
3904 .justify_between()
3905 .overflow_hidden()
3906 .child(
3907 h_flex()
3908 .gap_2()
3909 .map(|path_header| {
3910 let filename = filename
3911 .map(SharedString::from)
3912 .unwrap_or_else(|| "untitled".into());
3913
3914 path_header
3915 .when(ItemSettings::get_global(cx).file_icons, |el| {
3916 let path = path::Path::new(filename.as_str());
3917 let icon = FileIcons::get_icon(path, cx)
3918 .unwrap_or_default();
3919 let icon =
3920 Icon::from_path(icon).color(Color::Muted);
3921 el.child(icon)
3922 })
3923 .child(Label::new(filename).single_line().when_some(
3924 file_status,
3925 |el, status| {
3926 el.color(if status.is_conflicted() {
3927 Color::Conflict
3928 } else if status.is_modified() {
3929 Color::Modified
3930 } else if status.is_deleted() {
3931 Color::Disabled
3932 } else {
3933 Color::Created
3934 })
3935 .when(status.is_deleted(), |el| {
3936 el.strikethrough()
3937 })
3938 },
3939 ))
3940 })
3941 .when_some(parent_path, |then, path| {
3942 then.child(div().child(path).text_color(
3943 if file_status.is_some_and(FileStatus::is_deleted) {
3944 colors.text_disabled
3945 } else {
3946 colors.text_muted
3947 },
3948 ))
3949 }),
3950 )
3951 .when(
3952 can_open_excerpts && is_selected && relative_path.is_some(),
3953 |el| {
3954 el.child(
3955 h_flex()
3956 .id("jump-to-file-button")
3957 .gap_2p5()
3958 .child(Label::new("Jump To File"))
3959 .children(
3960 KeyBinding::for_action_in(
3961 &OpenExcerpts,
3962 &focus_handle,
3963 window,
3964 cx,
3965 )
3966 .map(|binding| binding.into_any_element()),
3967 ),
3968 )
3969 },
3970 )
3971 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
3972 .on_click(window.listener_for(&self.editor, {
3973 move |editor, e: &ClickEvent, window, cx| {
3974 editor.open_excerpts_common(
3975 Some(jump_data.clone()),
3976 e.modifiers().secondary(),
3977 window,
3978 cx,
3979 );
3980 }
3981 })),
3982 ),
3983 );
3984
3985 let file = for_excerpt.buffer.file().cloned();
3986 let editor = self.editor.clone();
3987 right_click_menu("buffer-header-context-menu")
3988 .trigger(move |_, _, _| header)
3989 .menu(move |window, cx| {
3990 let menu_context = focus_handle.clone();
3991 let editor = editor.clone();
3992 let file = file.clone();
3993 ContextMenu::build(window, cx, move |mut menu, window, cx| {
3994 if let Some(file) = file
3995 && let Some(project) = editor.read(cx).project()
3996 && let Some(worktree) =
3997 project.read(cx).worktree_for_id(file.worktree_id(cx), cx)
3998 {
3999 let path_style = file.path_style(cx);
4000 let worktree = worktree.read(cx);
4001 let relative_path = file.path();
4002 let entry_for_path = worktree.entry_for_path(relative_path);
4003 let abs_path = entry_for_path.map(|e| {
4004 e.canonical_path.as_deref().map_or_else(
4005 || worktree.absolutize(relative_path),
4006 Path::to_path_buf,
4007 )
4008 });
4009 let has_relative_path = worktree.root_entry().is_some_and(Entry::is_dir);
4010
4011 let parent_abs_path = abs_path
4012 .as_ref()
4013 .and_then(|abs_path| Some(abs_path.parent()?.to_path_buf()));
4014 let relative_path = has_relative_path
4015 .then_some(relative_path)
4016 .map(ToOwned::to_owned);
4017
4018 let visible_in_project_panel =
4019 relative_path.is_some() && worktree.is_visible();
4020 let reveal_in_project_panel = entry_for_path
4021 .filter(|_| visible_in_project_panel)
4022 .map(|entry| entry.id);
4023 menu = menu
4024 .when_some(abs_path, |menu, abs_path| {
4025 menu.entry(
4026 "Copy Path",
4027 Some(Box::new(zed_actions::workspace::CopyPath)),
4028 window.handler_for(&editor, move |_, _, cx| {
4029 cx.write_to_clipboard(ClipboardItem::new_string(
4030 abs_path.to_string_lossy().to_string(),
4031 ));
4032 }),
4033 )
4034 })
4035 .when_some(relative_path, |menu, relative_path| {
4036 menu.entry(
4037 "Copy Relative Path",
4038 Some(Box::new(zed_actions::workspace::CopyRelativePath)),
4039 window.handler_for(&editor, move |_, _, cx| {
4040 cx.write_to_clipboard(ClipboardItem::new_string(
4041 relative_path.display(path_style).to_string(),
4042 ));
4043 }),
4044 )
4045 })
4046 .when(
4047 reveal_in_project_panel.is_some() || parent_abs_path.is_some(),
4048 |menu| menu.separator(),
4049 )
4050 .when_some(reveal_in_project_panel, |menu, entry_id| {
4051 menu.entry(
4052 "Reveal In Project Panel",
4053 Some(Box::new(RevealInProjectPanel::default())),
4054 window.handler_for(&editor, move |editor, _, cx| {
4055 if let Some(project) = &mut editor.project {
4056 project.update(cx, |_, cx| {
4057 cx.emit(project::Event::RevealInProjectPanel(
4058 entry_id,
4059 ))
4060 });
4061 }
4062 }),
4063 )
4064 })
4065 .when_some(parent_abs_path, |menu, parent_abs_path| {
4066 menu.entry(
4067 "Open in Terminal",
4068 Some(Box::new(OpenInTerminal)),
4069 window.handler_for(&editor, move |_, window, cx| {
4070 window.dispatch_action(
4071 OpenTerminal {
4072 working_directory: parent_abs_path.clone(),
4073 }
4074 .boxed_clone(),
4075 cx,
4076 );
4077 }),
4078 )
4079 });
4080 }
4081
4082 menu.context(menu_context)
4083 })
4084 })
4085 }
4086
4087 fn render_blocks(
4088 &self,
4089 rows: Range<DisplayRow>,
4090 snapshot: &EditorSnapshot,
4091 hitbox: &Hitbox,
4092 text_hitbox: &Hitbox,
4093 editor_width: Pixels,
4094 scroll_width: &mut Pixels,
4095 editor_margins: &EditorMargins,
4096 em_width: Pixels,
4097 text_x: Pixels,
4098 line_height: Pixels,
4099 line_layouts: &mut [LineWithInvisibles],
4100 selections: &[Selection<Point>],
4101 selected_buffer_ids: &Vec<BufferId>,
4102 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4103 sticky_header_excerpt_id: Option<ExcerptId>,
4104 window: &mut Window,
4105 cx: &mut App,
4106 ) -> Result<(Vec<BlockLayout>, HashMap<DisplayRow, bool>), HashMap<CustomBlockId, u32>> {
4107 let (fixed_blocks, non_fixed_blocks) = snapshot
4108 .blocks_in_range(rows.clone())
4109 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
4110
4111 let mut focused_block = self
4112 .editor
4113 .update(cx, |editor, _| editor.take_focused_block());
4114 let mut fixed_block_max_width = Pixels::ZERO;
4115 let mut blocks = Vec::new();
4116 let mut resized_blocks = HashMap::default();
4117 let mut row_block_types = HashMap::default();
4118
4119 for (row, block) in fixed_blocks {
4120 let block_id = block.id();
4121
4122 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4123 focused_block = None;
4124 }
4125
4126 if let Some((element, element_size, row, x_offset)) = self.render_block(
4127 block,
4128 AvailableSpace::MinContent,
4129 block_id,
4130 row,
4131 snapshot,
4132 text_x,
4133 &rows,
4134 line_layouts,
4135 editor_margins,
4136 line_height,
4137 em_width,
4138 text_hitbox,
4139 editor_width,
4140 scroll_width,
4141 &mut resized_blocks,
4142 &mut row_block_types,
4143 selections,
4144 selected_buffer_ids,
4145 is_row_soft_wrapped,
4146 sticky_header_excerpt_id,
4147 window,
4148 cx,
4149 ) {
4150 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
4151 blocks.push(BlockLayout {
4152 id: block_id,
4153 x_offset,
4154 row: Some(row),
4155 element,
4156 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
4157 style: BlockStyle::Fixed,
4158 overlaps_gutter: true,
4159 is_buffer_header: block.is_buffer_header(),
4160 });
4161 }
4162 }
4163
4164 for (row, block) in non_fixed_blocks {
4165 let style = block.style();
4166 let width = match (style, block.place_near()) {
4167 (_, true) => AvailableSpace::MinContent,
4168 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
4169 (BlockStyle::Flex, _) => hitbox
4170 .size
4171 .width
4172 .max(fixed_block_max_width)
4173 .max(editor_margins.gutter.width + *scroll_width)
4174 .into(),
4175 (BlockStyle::Fixed, _) => unreachable!(),
4176 };
4177 let block_id = block.id();
4178
4179 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4180 focused_block = None;
4181 }
4182
4183 if let Some((element, element_size, row, x_offset)) = self.render_block(
4184 block,
4185 width,
4186 block_id,
4187 row,
4188 snapshot,
4189 text_x,
4190 &rows,
4191 line_layouts,
4192 editor_margins,
4193 line_height,
4194 em_width,
4195 text_hitbox,
4196 editor_width,
4197 scroll_width,
4198 &mut resized_blocks,
4199 &mut row_block_types,
4200 selections,
4201 selected_buffer_ids,
4202 is_row_soft_wrapped,
4203 sticky_header_excerpt_id,
4204 window,
4205 cx,
4206 ) {
4207 blocks.push(BlockLayout {
4208 id: block_id,
4209 x_offset,
4210 row: Some(row),
4211 element,
4212 available_space: size(width, element_size.height.into()),
4213 style,
4214 overlaps_gutter: !block.place_near(),
4215 is_buffer_header: block.is_buffer_header(),
4216 });
4217 }
4218 }
4219
4220 if let Some(focused_block) = focused_block
4221 && let Some(focus_handle) = focused_block.focus_handle.upgrade()
4222 && focus_handle.is_focused(window)
4223 && let Some(block) = snapshot.block_for_id(focused_block.id)
4224 {
4225 let style = block.style();
4226 let width = match style {
4227 BlockStyle::Fixed => AvailableSpace::MinContent,
4228 BlockStyle::Flex => AvailableSpace::Definite(
4229 hitbox
4230 .size
4231 .width
4232 .max(fixed_block_max_width)
4233 .max(editor_margins.gutter.width + *scroll_width),
4234 ),
4235 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
4236 };
4237
4238 if let Some((element, element_size, _, x_offset)) = self.render_block(
4239 &block,
4240 width,
4241 focused_block.id,
4242 rows.end,
4243 snapshot,
4244 text_x,
4245 &rows,
4246 line_layouts,
4247 editor_margins,
4248 line_height,
4249 em_width,
4250 text_hitbox,
4251 editor_width,
4252 scroll_width,
4253 &mut resized_blocks,
4254 &mut row_block_types,
4255 selections,
4256 selected_buffer_ids,
4257 is_row_soft_wrapped,
4258 sticky_header_excerpt_id,
4259 window,
4260 cx,
4261 ) {
4262 blocks.push(BlockLayout {
4263 id: block.id(),
4264 x_offset,
4265 row: None,
4266 element,
4267 available_space: size(width, element_size.height.into()),
4268 style,
4269 overlaps_gutter: true,
4270 is_buffer_header: block.is_buffer_header(),
4271 });
4272 }
4273 }
4274
4275 if resized_blocks.is_empty() {
4276 *scroll_width =
4277 (*scroll_width).max(fixed_block_max_width - editor_margins.gutter.width);
4278 Ok((blocks, row_block_types))
4279 } else {
4280 Err(resized_blocks)
4281 }
4282 }
4283
4284 fn layout_blocks(
4285 &self,
4286 blocks: &mut Vec<BlockLayout>,
4287 hitbox: &Hitbox,
4288 line_height: Pixels,
4289 scroll_pixel_position: gpui::Point<Pixels>,
4290 window: &mut Window,
4291 cx: &mut App,
4292 ) {
4293 for block in blocks {
4294 let mut origin = if let Some(row) = block.row {
4295 hitbox.origin
4296 + point(
4297 block.x_offset,
4298 row.as_f32() * line_height - scroll_pixel_position.y,
4299 )
4300 } else {
4301 // Position the block outside the visible area
4302 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
4303 };
4304
4305 if !matches!(block.style, BlockStyle::Sticky) {
4306 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
4307 }
4308
4309 let focus_handle =
4310 block
4311 .element
4312 .prepaint_as_root(origin, block.available_space, window, cx);
4313
4314 if let Some(focus_handle) = focus_handle {
4315 self.editor.update(cx, |editor, _cx| {
4316 editor.set_focused_block(FocusedBlock {
4317 id: block.id,
4318 focus_handle: focus_handle.downgrade(),
4319 });
4320 });
4321 }
4322 }
4323 }
4324
4325 fn layout_sticky_buffer_header(
4326 &self,
4327 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
4328 scroll_position: f32,
4329 line_height: Pixels,
4330 right_margin: Pixels,
4331 snapshot: &EditorSnapshot,
4332 hitbox: &Hitbox,
4333 selected_buffer_ids: &Vec<BufferId>,
4334 blocks: &[BlockLayout],
4335 window: &mut Window,
4336 cx: &mut App,
4337 ) -> AnyElement {
4338 let jump_data = header_jump_data(
4339 snapshot,
4340 DisplayRow(scroll_position as u32),
4341 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
4342 excerpt,
4343 );
4344
4345 let editor_bg_color = cx.theme().colors().editor_background;
4346
4347 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
4348
4349 let available_width = hitbox.bounds.size.width - right_margin;
4350
4351 let mut header = v_flex()
4352 .w_full()
4353 .relative()
4354 .child(
4355 div()
4356 .w(available_width)
4357 .h(FILE_HEADER_HEIGHT as f32 * line_height)
4358 .bg(linear_gradient(
4359 0.,
4360 linear_color_stop(editor_bg_color.opacity(0.), 0.),
4361 linear_color_stop(editor_bg_color, 0.6),
4362 ))
4363 .absolute()
4364 .top_0(),
4365 )
4366 .child(
4367 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
4368 .into_any_element(),
4369 )
4370 .into_any_element();
4371
4372 let mut origin = hitbox.origin;
4373 // Move floating header up to avoid colliding with the next buffer header.
4374 for block in blocks.iter() {
4375 if !block.is_buffer_header {
4376 continue;
4377 }
4378
4379 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position as u32) else {
4380 continue;
4381 };
4382
4383 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
4384 let offset = scroll_position - max_row as f32;
4385
4386 if offset > 0.0 {
4387 origin.y -= offset * line_height;
4388 }
4389 break;
4390 }
4391
4392 let size = size(
4393 AvailableSpace::Definite(available_width),
4394 AvailableSpace::MinContent,
4395 );
4396
4397 header.prepaint_as_root(origin, size, window, cx);
4398
4399 header
4400 }
4401
4402 fn layout_cursor_popovers(
4403 &self,
4404 line_height: Pixels,
4405 text_hitbox: &Hitbox,
4406 content_origin: gpui::Point<Pixels>,
4407 right_margin: Pixels,
4408 start_row: DisplayRow,
4409 scroll_pixel_position: gpui::Point<Pixels>,
4410 line_layouts: &[LineWithInvisibles],
4411 cursor: DisplayPoint,
4412 cursor_point: Point,
4413 style: &EditorStyle,
4414 window: &mut Window,
4415 cx: &mut App,
4416 ) -> Option<ContextMenuLayout> {
4417 let mut min_menu_height = Pixels::ZERO;
4418 let mut max_menu_height = Pixels::ZERO;
4419 let mut height_above_menu = Pixels::ZERO;
4420 let height_below_menu = Pixels::ZERO;
4421 let mut edit_prediction_popover_visible = false;
4422 let mut context_menu_visible = false;
4423 let context_menu_placement;
4424
4425 {
4426 let editor = self.editor.read(cx);
4427 if editor.edit_prediction_visible_in_cursor_popover(editor.has_active_edit_prediction())
4428 {
4429 height_above_menu +=
4430 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
4431 edit_prediction_popover_visible = true;
4432 }
4433
4434 if editor.context_menu_visible()
4435 && let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin()
4436 {
4437 let (min_height_in_lines, max_height_in_lines) = editor
4438 .context_menu_options
4439 .as_ref()
4440 .map_or((3, 12), |options| {
4441 (options.min_entries_visible, options.max_entries_visible)
4442 });
4443
4444 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4445 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4446 context_menu_visible = true;
4447 }
4448 context_menu_placement = editor
4449 .context_menu_options
4450 .as_ref()
4451 .and_then(|options| options.placement.clone());
4452 }
4453
4454 let visible = edit_prediction_popover_visible || context_menu_visible;
4455 if !visible {
4456 return None;
4457 }
4458
4459 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
4460 let target_position = content_origin
4461 + gpui::Point {
4462 x: cmp::max(
4463 px(0.),
4464 cursor_row_layout.x_for_index(cursor.column() as usize)
4465 - scroll_pixel_position.x,
4466 ),
4467 y: cmp::max(
4468 px(0.),
4469 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
4470 ),
4471 };
4472
4473 let viewport_bounds =
4474 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4475 right: -right_margin - MENU_GAP,
4476 ..Default::default()
4477 });
4478
4479 let min_height = height_above_menu + min_menu_height + height_below_menu;
4480 let max_height = height_above_menu + max_menu_height + height_below_menu;
4481 let (laid_out_popovers, y_flipped) = self.layout_popovers_above_or_below_line(
4482 target_position,
4483 line_height,
4484 min_height,
4485 max_height,
4486 context_menu_placement,
4487 text_hitbox,
4488 viewport_bounds,
4489 window,
4490 cx,
4491 |height, max_width_for_stable_x, y_flipped, window, cx| {
4492 // First layout the menu to get its size - others can be at least this wide.
4493 let context_menu = if context_menu_visible {
4494 let menu_height = if y_flipped {
4495 height - height_below_menu
4496 } else {
4497 height - height_above_menu
4498 };
4499 let mut element = self
4500 .render_context_menu(line_height, menu_height, window, cx)
4501 .expect("Visible context menu should always render.");
4502 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4503 Some((CursorPopoverType::CodeContextMenu, element, size))
4504 } else {
4505 None
4506 };
4507 let min_width = context_menu
4508 .as_ref()
4509 .map_or(px(0.), |(_, _, size)| size.width);
4510 let max_width = max_width_for_stable_x.max(
4511 context_menu
4512 .as_ref()
4513 .map_or(px(0.), |(_, _, size)| size.width),
4514 );
4515
4516 let edit_prediction = if edit_prediction_popover_visible {
4517 self.editor.update(cx, move |editor, cx| {
4518 let accept_binding =
4519 editor.accept_edit_prediction_keybind(false, window, cx);
4520 let mut element = editor.render_edit_prediction_cursor_popover(
4521 min_width,
4522 max_width,
4523 cursor_point,
4524 style,
4525 accept_binding.keystroke(),
4526 window,
4527 cx,
4528 )?;
4529 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4530 Some((CursorPopoverType::EditPrediction, element, size))
4531 })
4532 } else {
4533 None
4534 };
4535 vec![edit_prediction, context_menu]
4536 .into_iter()
4537 .flatten()
4538 .collect::<Vec<_>>()
4539 },
4540 )?;
4541
4542 let (menu_ix, (_, menu_bounds)) = laid_out_popovers
4543 .iter()
4544 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))?;
4545 let last_ix = laid_out_popovers.len() - 1;
4546 let menu_is_last = menu_ix == last_ix;
4547 let first_popover_bounds = laid_out_popovers[0].1;
4548 let last_popover_bounds = laid_out_popovers[last_ix].1;
4549
4550 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
4551 // right, and otherwise it goes below or to the right.
4552 let mut target_bounds = Bounds::from_corners(
4553 first_popover_bounds.origin,
4554 last_popover_bounds.bottom_right(),
4555 );
4556 target_bounds.size.width = menu_bounds.size.width;
4557
4558 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
4559 // based on this is preferred for layout stability.
4560 let mut max_target_bounds = target_bounds;
4561 max_target_bounds.size.height = max_height;
4562 if y_flipped {
4563 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
4564 }
4565
4566 // Add spacing around `target_bounds` and `max_target_bounds`.
4567 let mut extend_amount = Edges::all(MENU_GAP);
4568 if y_flipped {
4569 extend_amount.bottom = line_height;
4570 } else {
4571 extend_amount.top = line_height;
4572 }
4573 let target_bounds = target_bounds.extend(extend_amount);
4574 let max_target_bounds = max_target_bounds.extend(extend_amount);
4575
4576 let must_place_above_or_below =
4577 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
4578 laid_out_popovers[menu_ix + 1..]
4579 .iter()
4580 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
4581 } else {
4582 false
4583 };
4584
4585 let aside_bounds = self.layout_context_menu_aside(
4586 y_flipped,
4587 *menu_bounds,
4588 target_bounds,
4589 max_target_bounds,
4590 max_menu_height,
4591 must_place_above_or_below,
4592 text_hitbox,
4593 viewport_bounds,
4594 window,
4595 cx,
4596 );
4597
4598 if let Some(menu_bounds) = laid_out_popovers.iter().find_map(|(popover_type, bounds)| {
4599 if matches!(popover_type, CursorPopoverType::CodeContextMenu) {
4600 Some(*bounds)
4601 } else {
4602 None
4603 }
4604 }) {
4605 let bounds = if let Some(aside_bounds) = aside_bounds {
4606 menu_bounds.union(&aside_bounds)
4607 } else {
4608 menu_bounds
4609 };
4610 return Some(ContextMenuLayout { y_flipped, bounds });
4611 }
4612
4613 None
4614 }
4615
4616 fn layout_gutter_menu(
4617 &self,
4618 line_height: Pixels,
4619 text_hitbox: &Hitbox,
4620 content_origin: gpui::Point<Pixels>,
4621 right_margin: Pixels,
4622 scroll_pixel_position: gpui::Point<Pixels>,
4623 gutter_overshoot: Pixels,
4624 window: &mut Window,
4625 cx: &mut App,
4626 ) {
4627 let editor = self.editor.read(cx);
4628 if !editor.context_menu_visible() {
4629 return;
4630 }
4631 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
4632 editor.context_menu_origin()
4633 else {
4634 return;
4635 };
4636 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
4637 // indicator than just a plain first column of the text field.
4638 let target_position = content_origin
4639 + gpui::Point {
4640 x: -gutter_overshoot,
4641 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
4642 };
4643
4644 let (min_height_in_lines, max_height_in_lines) = editor
4645 .context_menu_options
4646 .as_ref()
4647 .map_or((3, 12), |options| {
4648 (options.min_entries_visible, options.max_entries_visible)
4649 });
4650
4651 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4652 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4653 let viewport_bounds =
4654 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4655 right: -right_margin - MENU_GAP,
4656 ..Default::default()
4657 });
4658 self.layout_popovers_above_or_below_line(
4659 target_position,
4660 line_height,
4661 min_height,
4662 max_height,
4663 editor
4664 .context_menu_options
4665 .as_ref()
4666 .and_then(|options| options.placement.clone()),
4667 text_hitbox,
4668 viewport_bounds,
4669 window,
4670 cx,
4671 move |height, _max_width_for_stable_x, _, window, cx| {
4672 let mut element = self
4673 .render_context_menu(line_height, height, window, cx)
4674 .expect("Visible context menu should always render.");
4675 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4676 vec![(CursorPopoverType::CodeContextMenu, element, size)]
4677 },
4678 );
4679 }
4680
4681 fn layout_popovers_above_or_below_line(
4682 &self,
4683 target_position: gpui::Point<Pixels>,
4684 line_height: Pixels,
4685 min_height: Pixels,
4686 max_height: Pixels,
4687 placement: Option<ContextMenuPlacement>,
4688 text_hitbox: &Hitbox,
4689 viewport_bounds: Bounds<Pixels>,
4690 window: &mut Window,
4691 cx: &mut App,
4692 make_sized_popovers: impl FnOnce(
4693 Pixels,
4694 Pixels,
4695 bool,
4696 &mut Window,
4697 &mut App,
4698 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
4699 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
4700 let text_style = TextStyleRefinement {
4701 line_height: Some(DefiniteLength::Fraction(
4702 BufferLineHeight::Comfortable.value(),
4703 )),
4704 ..Default::default()
4705 };
4706 window.with_text_style(Some(text_style), |window| {
4707 // If the max height won't fit below and there is more space above, put it above the line.
4708 let bottom_y_when_flipped = target_position.y - line_height;
4709 let available_above = bottom_y_when_flipped - text_hitbox.top();
4710 let available_below = text_hitbox.bottom() - target_position.y;
4711 let y_overflows_below = max_height > available_below;
4712 let mut y_flipped = match placement {
4713 Some(ContextMenuPlacement::Above) => true,
4714 Some(ContextMenuPlacement::Below) => false,
4715 None => y_overflows_below && available_above > available_below,
4716 };
4717 let mut height = cmp::min(
4718 max_height,
4719 if y_flipped {
4720 available_above
4721 } else {
4722 available_below
4723 },
4724 );
4725
4726 // If the min height doesn't fit within text bounds, instead fit within the window.
4727 if height < min_height {
4728 let available_above = bottom_y_when_flipped;
4729 let available_below = viewport_bounds.bottom() - target_position.y;
4730 let (y_flipped_override, height_override) = match placement {
4731 Some(ContextMenuPlacement::Above) => {
4732 (true, cmp::min(available_above, min_height))
4733 }
4734 Some(ContextMenuPlacement::Below) => {
4735 (false, cmp::min(available_below, min_height))
4736 }
4737 None => {
4738 if available_below > min_height {
4739 (false, min_height)
4740 } else if available_above > min_height {
4741 (true, min_height)
4742 } else if available_above > available_below {
4743 (true, available_above)
4744 } else {
4745 (false, available_below)
4746 }
4747 }
4748 };
4749 y_flipped = y_flipped_override;
4750 height = height_override;
4751 }
4752
4753 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
4754
4755 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
4756 // for very narrow windows.
4757 let popovers =
4758 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
4759 if popovers.is_empty() {
4760 return None;
4761 }
4762
4763 let max_width = popovers
4764 .iter()
4765 .map(|(_, _, size)| size.width)
4766 .max()
4767 .unwrap_or_default();
4768
4769 let mut current_position = gpui::Point {
4770 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
4771 // overflow. Include space for the scrollbar.
4772 x: target_position
4773 .x
4774 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
4775 y: if y_flipped {
4776 bottom_y_when_flipped
4777 } else {
4778 target_position.y
4779 },
4780 };
4781
4782 let mut laid_out_popovers = popovers
4783 .into_iter()
4784 .map(|(popover_type, element, size)| {
4785 if y_flipped {
4786 current_position.y -= size.height;
4787 }
4788 let position = current_position;
4789 window.defer_draw(element, current_position, 1);
4790 if !y_flipped {
4791 current_position.y += size.height + MENU_GAP;
4792 } else {
4793 current_position.y -= MENU_GAP;
4794 }
4795 (popover_type, Bounds::new(position, size))
4796 })
4797 .collect::<Vec<_>>();
4798
4799 if y_flipped {
4800 laid_out_popovers.reverse();
4801 }
4802
4803 Some((laid_out_popovers, y_flipped))
4804 })
4805 }
4806
4807 fn layout_context_menu_aside(
4808 &self,
4809 y_flipped: bool,
4810 menu_bounds: Bounds<Pixels>,
4811 target_bounds: Bounds<Pixels>,
4812 max_target_bounds: Bounds<Pixels>,
4813 max_height: Pixels,
4814 must_place_above_or_below: bool,
4815 text_hitbox: &Hitbox,
4816 viewport_bounds: Bounds<Pixels>,
4817 window: &mut Window,
4818 cx: &mut App,
4819 ) -> Option<Bounds<Pixels>> {
4820 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
4821 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
4822 && !must_place_above_or_below
4823 {
4824 let max_width = cmp::min(
4825 available_within_viewport.right - px(1.),
4826 MENU_ASIDE_MAX_WIDTH,
4827 );
4828 let mut aside = self.render_context_menu_aside(
4829 size(max_width, max_height - POPOVER_Y_PADDING),
4830 window,
4831 cx,
4832 )?;
4833 let size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
4834 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
4835 Some((aside, right_position, size))
4836 } else {
4837 let max_size = size(
4838 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
4839 // won't be needed here.
4840 cmp::min(
4841 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
4842 viewport_bounds.right(),
4843 ),
4844 cmp::min(
4845 max_height,
4846 cmp::max(
4847 available_within_viewport.top,
4848 available_within_viewport.bottom,
4849 ),
4850 ) - POPOVER_Y_PADDING,
4851 );
4852 let mut aside = self.render_context_menu_aside(max_size, window, cx)?;
4853 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
4854
4855 let top_position = point(
4856 menu_bounds.origin.x,
4857 target_bounds.top() - actual_size.height,
4858 );
4859 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
4860
4861 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
4862 // Prefer to fit on the same side of the line as the menu, then on the other side of
4863 // the line.
4864 if !y_flipped && wanted.height < available.bottom {
4865 Some(bottom_position)
4866 } else if !y_flipped && wanted.height < available.top {
4867 Some(top_position)
4868 } else if y_flipped && wanted.height < available.top {
4869 Some(top_position)
4870 } else if y_flipped && wanted.height < available.bottom {
4871 Some(bottom_position)
4872 } else {
4873 None
4874 }
4875 };
4876
4877 // Prefer choosing a direction using max sizes rather than actual size for stability.
4878 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
4879 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
4880 let aside_position = fit_within(available_within_text, wanted)
4881 // Fallback: fit max size in window.
4882 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
4883 // Fallback: fit actual size in window.
4884 .or_else(|| fit_within(available_within_viewport, actual_size));
4885
4886 aside_position.map(|position| (aside, position, actual_size))
4887 };
4888
4889 // Skip drawing if it doesn't fit anywhere.
4890 if let Some((aside, position, size)) = positioned_aside {
4891 let aside_bounds = Bounds::new(position, size);
4892 window.defer_draw(aside, position, 2);
4893 return Some(aside_bounds);
4894 }
4895
4896 None
4897 }
4898
4899 fn render_context_menu(
4900 &self,
4901 line_height: Pixels,
4902 height: Pixels,
4903 window: &mut Window,
4904 cx: &mut App,
4905 ) -> Option<AnyElement> {
4906 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
4907 self.editor.update(cx, |editor, cx| {
4908 editor.render_context_menu(&self.style, max_height_in_lines, window, cx)
4909 })
4910 }
4911
4912 fn render_context_menu_aside(
4913 &self,
4914 max_size: Size<Pixels>,
4915 window: &mut Window,
4916 cx: &mut App,
4917 ) -> Option<AnyElement> {
4918 if max_size.width < px(100.) || max_size.height < px(12.) {
4919 None
4920 } else {
4921 self.editor.update(cx, |editor, cx| {
4922 editor.render_context_menu_aside(max_size, window, cx)
4923 })
4924 }
4925 }
4926
4927 fn layout_mouse_context_menu(
4928 &self,
4929 editor_snapshot: &EditorSnapshot,
4930 visible_range: Range<DisplayRow>,
4931 content_origin: gpui::Point<Pixels>,
4932 window: &mut Window,
4933 cx: &mut App,
4934 ) -> Option<AnyElement> {
4935 let position = self.editor.update(cx, |editor, _cx| {
4936 let visible_start_point = editor.display_to_pixel_point(
4937 DisplayPoint::new(visible_range.start, 0),
4938 editor_snapshot,
4939 window,
4940 )?;
4941 let visible_end_point = editor.display_to_pixel_point(
4942 DisplayPoint::new(visible_range.end, 0),
4943 editor_snapshot,
4944 window,
4945 )?;
4946
4947 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
4948 let (source_display_point, position) = match mouse_context_menu.position {
4949 MenuPosition::PinnedToScreen(point) => (None, point),
4950 MenuPosition::PinnedToEditor { source, offset } => {
4951 let source_display_point = source.to_display_point(editor_snapshot);
4952 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
4953 let position = content_origin + source_point + offset;
4954 (Some(source_display_point), position)
4955 }
4956 };
4957
4958 let source_included = source_display_point.is_none_or(|source_display_point| {
4959 visible_range
4960 .to_inclusive()
4961 .contains(&source_display_point.row())
4962 });
4963 let position_included =
4964 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
4965 if !source_included && !position_included {
4966 None
4967 } else {
4968 Some(position)
4969 }
4970 })?;
4971
4972 let text_style = TextStyleRefinement {
4973 line_height: Some(DefiniteLength::Fraction(
4974 BufferLineHeight::Comfortable.value(),
4975 )),
4976 ..Default::default()
4977 };
4978 window.with_text_style(Some(text_style), |window| {
4979 let mut element = self.editor.read_with(cx, |editor, _| {
4980 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
4981 let context_menu = mouse_context_menu.context_menu.clone();
4982
4983 Some(
4984 deferred(
4985 anchored()
4986 .position(position)
4987 .child(context_menu)
4988 .anchor(Corner::TopLeft)
4989 .snap_to_window_with_margin(px(8.)),
4990 )
4991 .with_priority(1)
4992 .into_any(),
4993 )
4994 })?;
4995
4996 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
4997 Some(element)
4998 })
4999 }
5000
5001 fn layout_hover_popovers(
5002 &self,
5003 snapshot: &EditorSnapshot,
5004 hitbox: &Hitbox,
5005 visible_display_row_range: Range<DisplayRow>,
5006 content_origin: gpui::Point<Pixels>,
5007 scroll_pixel_position: gpui::Point<Pixels>,
5008 line_layouts: &[LineWithInvisibles],
5009 line_height: Pixels,
5010 em_width: Pixels,
5011 context_menu_layout: Option<ContextMenuLayout>,
5012 window: &mut Window,
5013 cx: &mut App,
5014 ) {
5015 struct MeasuredHoverPopover {
5016 element: AnyElement,
5017 size: Size<Pixels>,
5018 horizontal_offset: Pixels,
5019 }
5020
5021 let max_size = size(
5022 (120. * em_width) // Default size
5023 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5024 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5025 (16. * line_height) // Default size
5026 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5027 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5028 );
5029
5030 let hover_popovers = self.editor.update(cx, |editor, cx| {
5031 editor.hover_state.render(
5032 snapshot,
5033 visible_display_row_range.clone(),
5034 max_size,
5035 window,
5036 cx,
5037 )
5038 });
5039 let Some((position, hover_popovers)) = hover_popovers else {
5040 return;
5041 };
5042
5043 // This is safe because we check on layout whether the required row is available
5044 let hovered_row_layout =
5045 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
5046
5047 // Compute Hovered Point
5048 let x =
5049 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
5050 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
5051 let hovered_point = content_origin + point(x, y);
5052
5053 let mut overall_height = Pixels::ZERO;
5054 let mut measured_hover_popovers = Vec::new();
5055 for (position, mut hover_popover) in hover_popovers.into_iter().with_position() {
5056 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
5057 let horizontal_offset =
5058 (hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
5059 .min(Pixels::ZERO);
5060 match position {
5061 itertools::Position::Middle | itertools::Position::Last => {
5062 overall_height += HOVER_POPOVER_GAP
5063 }
5064 _ => {}
5065 }
5066 overall_height += size.height;
5067 measured_hover_popovers.push(MeasuredHoverPopover {
5068 element: hover_popover,
5069 size,
5070 horizontal_offset,
5071 });
5072 }
5073
5074 fn draw_occluder(
5075 width: Pixels,
5076 origin: gpui::Point<Pixels>,
5077 window: &mut Window,
5078 cx: &mut App,
5079 ) {
5080 let mut occlusion = div()
5081 .size_full()
5082 .occlude()
5083 .on_mouse_move(|_, _, cx| cx.stop_propagation())
5084 .into_any_element();
5085 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
5086 window.defer_draw(occlusion, origin, 2);
5087 }
5088
5089 fn place_popovers_above(
5090 hovered_point: gpui::Point<Pixels>,
5091 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5092 window: &mut Window,
5093 cx: &mut App,
5094 ) {
5095 let mut current_y = hovered_point.y;
5096 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5097 let size = popover.size;
5098 let popover_origin = point(
5099 hovered_point.x + popover.horizontal_offset,
5100 current_y - size.height,
5101 );
5102
5103 window.defer_draw(popover.element, popover_origin, 2);
5104 if position != itertools::Position::Last {
5105 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
5106 draw_occluder(size.width, origin, window, cx);
5107 }
5108
5109 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5110 }
5111 }
5112
5113 fn place_popovers_below(
5114 hovered_point: gpui::Point<Pixels>,
5115 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5116 line_height: Pixels,
5117 window: &mut Window,
5118 cx: &mut App,
5119 ) {
5120 let mut current_y = hovered_point.y + line_height;
5121 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5122 let size = popover.size;
5123 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5124
5125 window.defer_draw(popover.element, popover_origin, 2);
5126 if position != itertools::Position::Last {
5127 let origin = point(popover_origin.x, popover_origin.y + size.height);
5128 draw_occluder(size.width, origin, window, cx);
5129 }
5130
5131 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5132 }
5133 }
5134
5135 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5136 context_menu_layout
5137 .as_ref()
5138 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5139 };
5140
5141 let can_place_above = {
5142 let mut bounds_above = Vec::new();
5143 let mut current_y = hovered_point.y;
5144 for popover in &measured_hover_popovers {
5145 let size = popover.size;
5146 let popover_origin = point(
5147 hovered_point.x + popover.horizontal_offset,
5148 current_y - size.height,
5149 );
5150 bounds_above.push(Bounds::new(popover_origin, size));
5151 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5152 }
5153 bounds_above
5154 .iter()
5155 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5156 };
5157
5158 let can_place_below = || {
5159 let mut bounds_below = Vec::new();
5160 let mut current_y = hovered_point.y + line_height;
5161 for popover in &measured_hover_popovers {
5162 let size = popover.size;
5163 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5164 bounds_below.push(Bounds::new(popover_origin, size));
5165 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5166 }
5167 bounds_below
5168 .iter()
5169 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5170 };
5171
5172 if can_place_above {
5173 // try placing above hovered point
5174 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5175 } else if can_place_below() {
5176 // try placing below hovered point
5177 place_popovers_below(
5178 hovered_point,
5179 measured_hover_popovers,
5180 line_height,
5181 window,
5182 cx,
5183 );
5184 } else {
5185 // try to place popovers around the context menu
5186 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5187 let total_width = measured_hover_popovers
5188 .iter()
5189 .map(|p| p.size.width)
5190 .max()
5191 .unwrap_or(Pixels::ZERO);
5192 let y_for_horizontal_positioning = if menu.y_flipped {
5193 menu.bounds.bottom() - overall_height
5194 } else {
5195 menu.bounds.top()
5196 };
5197 let possible_origins = vec![
5198 // left of context menu
5199 point(
5200 menu.bounds.left() - total_width - HOVER_POPOVER_GAP,
5201 y_for_horizontal_positioning,
5202 ),
5203 // right of context menu
5204 point(
5205 menu.bounds.right() + HOVER_POPOVER_GAP,
5206 y_for_horizontal_positioning,
5207 ),
5208 // top of context menu
5209 point(
5210 menu.bounds.left(),
5211 menu.bounds.top() - overall_height - HOVER_POPOVER_GAP,
5212 ),
5213 // bottom of context menu
5214 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5215 ];
5216 possible_origins.into_iter().find(|&origin| {
5217 Bounds::new(origin, size(total_width, overall_height))
5218 .is_contained_within(hitbox)
5219 })
5220 });
5221 if let Some(origin) = origin_surrounding_menu {
5222 let mut current_y = origin.y;
5223 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5224 let size = popover.size;
5225 let popover_origin = point(origin.x, current_y);
5226
5227 window.defer_draw(popover.element, popover_origin, 2);
5228 if position != itertools::Position::Last {
5229 let origin = point(popover_origin.x, popover_origin.y + size.height);
5230 draw_occluder(size.width, origin, window, cx);
5231 }
5232
5233 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5234 }
5235 } else {
5236 // fallback to existing above/below cursor logic
5237 // this might overlap menu or overflow in rare case
5238 if can_place_above {
5239 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5240 } else {
5241 place_popovers_below(
5242 hovered_point,
5243 measured_hover_popovers,
5244 line_height,
5245 window,
5246 cx,
5247 );
5248 }
5249 }
5250 }
5251 }
5252
5253 fn layout_diff_hunk_controls(
5254 &self,
5255 row_range: Range<DisplayRow>,
5256 row_infos: &[RowInfo],
5257 text_hitbox: &Hitbox,
5258 newest_cursor_position: Option<DisplayPoint>,
5259 line_height: Pixels,
5260 right_margin: Pixels,
5261 scroll_pixel_position: gpui::Point<Pixels>,
5262 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5263 highlighted_rows: &BTreeMap<DisplayRow, LineHighlight>,
5264 editor: Entity<Editor>,
5265 window: &mut Window,
5266 cx: &mut App,
5267 ) -> (Vec<AnyElement>, Vec<(DisplayRow, Bounds<Pixels>)>) {
5268 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
5269 let hovered_diff_hunk_row = editor.read(cx).hovered_diff_hunk_row;
5270
5271 let mut controls = vec![];
5272 let mut control_bounds = vec![];
5273
5274 let active_positions = [
5275 hovered_diff_hunk_row.map(|row| DisplayPoint::new(row, 0)),
5276 newest_cursor_position,
5277 ];
5278
5279 for (hunk, _) in display_hunks {
5280 if let DisplayDiffHunk::Unfolded {
5281 display_row_range,
5282 multi_buffer_range,
5283 status,
5284 is_created_file,
5285 ..
5286 } = &hunk
5287 {
5288 if display_row_range.start < row_range.start
5289 || display_row_range.start >= row_range.end
5290 {
5291 continue;
5292 }
5293 if highlighted_rows
5294 .get(&display_row_range.start)
5295 .and_then(|highlight| highlight.type_id)
5296 .is_some_and(|type_id| {
5297 [
5298 TypeId::of::<ConflictsOuter>(),
5299 TypeId::of::<ConflictsOursMarker>(),
5300 TypeId::of::<ConflictsOurs>(),
5301 TypeId::of::<ConflictsTheirs>(),
5302 TypeId::of::<ConflictsTheirsMarker>(),
5303 ]
5304 .contains(&type_id)
5305 })
5306 {
5307 continue;
5308 }
5309 let row_ix = (display_row_range.start - row_range.start).0 as usize;
5310 if row_infos[row_ix].diff_status.is_none() {
5311 continue;
5312 }
5313 if row_infos[row_ix]
5314 .diff_status
5315 .is_some_and(|status| status.is_added())
5316 && !status.is_added()
5317 {
5318 continue;
5319 }
5320
5321 if active_positions
5322 .iter()
5323 .any(|p| p.is_some_and(|p| display_row_range.contains(&p.row())))
5324 {
5325 let y = display_row_range.start.as_f32() * line_height
5326 + text_hitbox.bounds.top()
5327 - scroll_pixel_position.y;
5328
5329 let mut element = render_diff_hunk_controls(
5330 display_row_range.start.0,
5331 status,
5332 multi_buffer_range.clone(),
5333 *is_created_file,
5334 line_height,
5335 &editor,
5336 window,
5337 cx,
5338 );
5339 let size =
5340 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
5341
5342 let x = text_hitbox.bounds.right() - right_margin - px(10.) - size.width;
5343
5344 let bounds = Bounds::new(gpui::Point::new(x, y), size);
5345 control_bounds.push((display_row_range.start, bounds));
5346
5347 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
5348 element.prepaint(window, cx)
5349 });
5350 controls.push(element);
5351 }
5352 }
5353 }
5354
5355 (controls, control_bounds)
5356 }
5357
5358 fn layout_signature_help(
5359 &self,
5360 hitbox: &Hitbox,
5361 content_origin: gpui::Point<Pixels>,
5362 scroll_pixel_position: gpui::Point<Pixels>,
5363 newest_selection_head: Option<DisplayPoint>,
5364 start_row: DisplayRow,
5365 line_layouts: &[LineWithInvisibles],
5366 line_height: Pixels,
5367 em_width: Pixels,
5368 context_menu_layout: Option<ContextMenuLayout>,
5369 window: &mut Window,
5370 cx: &mut App,
5371 ) {
5372 if !self.editor.focus_handle(cx).is_focused(window) {
5373 return;
5374 }
5375 let Some(newest_selection_head) = newest_selection_head else {
5376 return;
5377 };
5378
5379 let max_size = size(
5380 (120. * em_width) // Default size
5381 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5382 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5383 (16. * line_height) // Default size
5384 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5385 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5386 );
5387
5388 let maybe_element = self.editor.update(cx, |editor, cx| {
5389 if let Some(popover) = editor.signature_help_state.popover_mut() {
5390 let element = popover.render(max_size, window, cx);
5391 Some(element)
5392 } else {
5393 None
5394 }
5395 });
5396 let Some(mut element) = maybe_element else {
5397 return;
5398 };
5399
5400 let selection_row = newest_selection_head.row();
5401 let Some(cursor_row_layout) = (selection_row >= start_row)
5402 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
5403 .flatten()
5404 else {
5405 return;
5406 };
5407
5408 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
5409 - scroll_pixel_position.x;
5410 let target_y = selection_row.as_f32() * line_height - scroll_pixel_position.y;
5411 let target_point = content_origin + point(target_x, target_y);
5412
5413 let actual_size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
5414
5415 let (popover_bounds_above, popover_bounds_below) = {
5416 let horizontal_offset = (hitbox.top_right().x
5417 - POPOVER_RIGHT_OFFSET
5418 - (target_point.x + actual_size.width))
5419 .min(Pixels::ZERO);
5420 let initial_x = target_point.x + horizontal_offset;
5421 (
5422 Bounds::new(
5423 point(initial_x, target_point.y - actual_size.height),
5424 actual_size,
5425 ),
5426 Bounds::new(
5427 point(initial_x, target_point.y + line_height + HOVER_POPOVER_GAP),
5428 actual_size,
5429 ),
5430 )
5431 };
5432
5433 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5434 context_menu_layout
5435 .as_ref()
5436 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5437 };
5438
5439 let final_origin = if popover_bounds_above.is_contained_within(hitbox)
5440 && !intersects_menu(popover_bounds_above)
5441 {
5442 // try placing above cursor
5443 popover_bounds_above.origin
5444 } else if popover_bounds_below.is_contained_within(hitbox)
5445 && !intersects_menu(popover_bounds_below)
5446 {
5447 // try placing below cursor
5448 popover_bounds_below.origin
5449 } else {
5450 // try surrounding context menu if exists
5451 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5452 let y_for_horizontal_positioning = if menu.y_flipped {
5453 menu.bounds.bottom() - actual_size.height
5454 } else {
5455 menu.bounds.top()
5456 };
5457 let possible_origins = vec![
5458 // left of context menu
5459 point(
5460 menu.bounds.left() - actual_size.width - HOVER_POPOVER_GAP,
5461 y_for_horizontal_positioning,
5462 ),
5463 // right of context menu
5464 point(
5465 menu.bounds.right() + HOVER_POPOVER_GAP,
5466 y_for_horizontal_positioning,
5467 ),
5468 // top of context menu
5469 point(
5470 menu.bounds.left(),
5471 menu.bounds.top() - actual_size.height - HOVER_POPOVER_GAP,
5472 ),
5473 // bottom of context menu
5474 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5475 ];
5476 possible_origins
5477 .into_iter()
5478 .find(|&origin| Bounds::new(origin, actual_size).is_contained_within(hitbox))
5479 });
5480 origin_surrounding_menu.unwrap_or_else(|| {
5481 // fallback to existing above/below cursor logic
5482 // this might overlap menu or overflow in rare case
5483 if popover_bounds_above.is_contained_within(hitbox) {
5484 popover_bounds_above.origin
5485 } else {
5486 popover_bounds_below.origin
5487 }
5488 })
5489 };
5490
5491 window.defer_draw(element, final_origin, 2);
5492 }
5493
5494 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5495 window.paint_layer(layout.hitbox.bounds, |window| {
5496 let scroll_top = layout.position_map.snapshot.scroll_position().y;
5497 let gutter_bg = cx.theme().colors().editor_gutter_background;
5498 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
5499 window.paint_quad(fill(
5500 layout.position_map.text_hitbox.bounds,
5501 self.style.background,
5502 ));
5503
5504 if matches!(
5505 layout.mode,
5506 EditorMode::Full { .. } | EditorMode::Minimap { .. }
5507 ) {
5508 let show_active_line_background = match layout.mode {
5509 EditorMode::Full {
5510 show_active_line_background,
5511 ..
5512 } => show_active_line_background,
5513 EditorMode::Minimap { .. } => true,
5514 _ => false,
5515 };
5516 let mut active_rows = layout.active_rows.iter().peekable();
5517 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
5518 let mut end_row = start_row.0;
5519 while active_rows
5520 .peek()
5521 .is_some_and(|(active_row, has_selection)| {
5522 active_row.0 == end_row + 1
5523 && has_selection.selection == contains_non_empty_selection.selection
5524 })
5525 {
5526 active_rows.next().unwrap();
5527 end_row += 1;
5528 }
5529
5530 if show_active_line_background && !contains_non_empty_selection.selection {
5531 let highlight_h_range =
5532 match layout.position_map.snapshot.current_line_highlight {
5533 CurrentLineHighlight::Gutter => Some(Range {
5534 start: layout.hitbox.left(),
5535 end: layout.gutter_hitbox.right(),
5536 }),
5537 CurrentLineHighlight::Line => Some(Range {
5538 start: layout.position_map.text_hitbox.bounds.left(),
5539 end: layout.position_map.text_hitbox.bounds.right(),
5540 }),
5541 CurrentLineHighlight::All => Some(Range {
5542 start: layout.hitbox.left(),
5543 end: layout.hitbox.right(),
5544 }),
5545 CurrentLineHighlight::None => None,
5546 };
5547 if let Some(range) = highlight_h_range {
5548 let active_line_bg = cx.theme().colors().editor_active_line_background;
5549 let bounds = Bounds {
5550 origin: point(
5551 range.start,
5552 layout.hitbox.origin.y
5553 + (start_row.as_f32() - scroll_top)
5554 * layout.position_map.line_height,
5555 ),
5556 size: size(
5557 range.end - range.start,
5558 layout.position_map.line_height
5559 * (end_row - start_row.0 + 1) as f32,
5560 ),
5561 };
5562 window.paint_quad(fill(bounds, active_line_bg));
5563 }
5564 }
5565 }
5566
5567 let mut paint_highlight = |highlight_row_start: DisplayRow,
5568 highlight_row_end: DisplayRow,
5569 highlight: crate::LineHighlight,
5570 edges| {
5571 let mut origin_x = layout.hitbox.left();
5572 let mut width = layout.hitbox.size.width;
5573 if !highlight.include_gutter {
5574 origin_x += layout.gutter_hitbox.size.width;
5575 width -= layout.gutter_hitbox.size.width;
5576 }
5577
5578 let origin = point(
5579 origin_x,
5580 layout.hitbox.origin.y
5581 + (highlight_row_start.as_f32() - scroll_top)
5582 * layout.position_map.line_height,
5583 );
5584 let size = size(
5585 width,
5586 layout.position_map.line_height
5587 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
5588 );
5589 let mut quad = fill(Bounds { origin, size }, highlight.background);
5590 if let Some(border_color) = highlight.border {
5591 quad.border_color = border_color;
5592 quad.border_widths = edges
5593 }
5594 window.paint_quad(quad);
5595 };
5596
5597 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
5598 None;
5599 for (&new_row, &new_background) in &layout.highlighted_rows {
5600 match &mut current_paint {
5601 &mut Some((current_background, ref mut current_range, mut edges)) => {
5602 let new_range_started = current_background != new_background
5603 || current_range.end.next_row() != new_row;
5604 if new_range_started {
5605 if current_range.end.next_row() == new_row {
5606 edges.bottom = px(0.);
5607 };
5608 paint_highlight(
5609 current_range.start,
5610 current_range.end,
5611 current_background,
5612 edges,
5613 );
5614 let edges = Edges {
5615 top: if current_range.end.next_row() != new_row {
5616 px(1.)
5617 } else {
5618 px(0.)
5619 },
5620 bottom: px(1.),
5621 ..Default::default()
5622 };
5623 current_paint = Some((new_background, new_row..new_row, edges));
5624 continue;
5625 } else {
5626 current_range.end = current_range.end.next_row();
5627 }
5628 }
5629 None => {
5630 let edges = Edges {
5631 top: px(1.),
5632 bottom: px(1.),
5633 ..Default::default()
5634 };
5635 current_paint = Some((new_background, new_row..new_row, edges))
5636 }
5637 };
5638 }
5639 if let Some((color, range, edges)) = current_paint {
5640 paint_highlight(range.start, range.end, color, edges);
5641 }
5642
5643 for (guide_x, active) in layout.wrap_guides.iter() {
5644 let color = if *active {
5645 cx.theme().colors().editor_active_wrap_guide
5646 } else {
5647 cx.theme().colors().editor_wrap_guide
5648 };
5649 window.paint_quad(fill(
5650 Bounds {
5651 origin: point(*guide_x, layout.position_map.text_hitbox.origin.y),
5652 size: size(px(1.), layout.position_map.text_hitbox.size.height),
5653 },
5654 color,
5655 ));
5656 }
5657 }
5658 })
5659 }
5660
5661 fn paint_indent_guides(
5662 &mut self,
5663 layout: &mut EditorLayout,
5664 window: &mut Window,
5665 cx: &mut App,
5666 ) {
5667 let Some(indent_guides) = &layout.indent_guides else {
5668 return;
5669 };
5670
5671 let faded_color = |color: Hsla, alpha: f32| {
5672 let mut faded = color;
5673 faded.a = alpha;
5674 faded
5675 };
5676
5677 for indent_guide in indent_guides {
5678 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
5679 let settings = &indent_guide.settings;
5680
5681 // TODO fixed for now, expose them through themes later
5682 const INDENT_AWARE_ALPHA: f32 = 0.2;
5683 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
5684 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
5685 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
5686
5687 let line_color = match (settings.coloring, indent_guide.active) {
5688 (IndentGuideColoring::Disabled, _) => None,
5689 (IndentGuideColoring::Fixed, false) => {
5690 Some(cx.theme().colors().editor_indent_guide)
5691 }
5692 (IndentGuideColoring::Fixed, true) => {
5693 Some(cx.theme().colors().editor_indent_guide_active)
5694 }
5695 (IndentGuideColoring::IndentAware, false) => {
5696 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
5697 }
5698 (IndentGuideColoring::IndentAware, true) => {
5699 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
5700 }
5701 };
5702
5703 let background_color = match (settings.background_coloring, indent_guide.active) {
5704 (IndentGuideBackgroundColoring::Disabled, _) => None,
5705 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
5706 indent_accent_colors,
5707 INDENT_AWARE_BACKGROUND_ALPHA,
5708 )),
5709 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
5710 indent_accent_colors,
5711 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
5712 )),
5713 };
5714
5715 let requested_line_width = if indent_guide.active {
5716 settings.active_line_width
5717 } else {
5718 settings.line_width
5719 }
5720 .clamp(1, 10);
5721 let mut line_indicator_width = 0.;
5722 if let Some(color) = line_color {
5723 window.paint_quad(fill(
5724 Bounds {
5725 origin: indent_guide.origin,
5726 size: size(px(requested_line_width as f32), indent_guide.length),
5727 },
5728 color,
5729 ));
5730 line_indicator_width = requested_line_width as f32;
5731 }
5732
5733 if let Some(color) = background_color {
5734 let width = indent_guide.single_indent_width - px(line_indicator_width);
5735 window.paint_quad(fill(
5736 Bounds {
5737 origin: point(
5738 indent_guide.origin.x + px(line_indicator_width),
5739 indent_guide.origin.y,
5740 ),
5741 size: size(width, indent_guide.length),
5742 },
5743 color,
5744 ));
5745 }
5746 }
5747 }
5748
5749 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5750 let is_singleton = self.editor.read(cx).is_singleton(cx);
5751
5752 let line_height = layout.position_map.line_height;
5753 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
5754
5755 for LineNumberLayout {
5756 shaped_line,
5757 hitbox,
5758 } in layout.line_numbers.values()
5759 {
5760 let Some(hitbox) = hitbox else {
5761 continue;
5762 };
5763
5764 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
5765 let color = cx.theme().colors().editor_hover_line_number;
5766
5767 let line = self.shape_line_number(shaped_line.text.clone(), color, window);
5768 line.paint(hitbox.origin, line_height, window, cx).log_err()
5769 } else {
5770 shaped_line
5771 .paint(hitbox.origin, line_height, window, cx)
5772 .log_err()
5773 }) else {
5774 continue;
5775 };
5776
5777 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
5778 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
5779 if is_singleton {
5780 window.set_cursor_style(CursorStyle::IBeam, hitbox);
5781 } else {
5782 window.set_cursor_style(CursorStyle::PointingHand, hitbox);
5783 }
5784 }
5785 }
5786
5787 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5788 if layout.display_hunks.is_empty() {
5789 return;
5790 }
5791
5792 let line_height = layout.position_map.line_height;
5793 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5794 for (hunk, hitbox) in &layout.display_hunks {
5795 let hunk_to_paint = match hunk {
5796 DisplayDiffHunk::Folded { .. } => {
5797 let hunk_bounds = Self::diff_hunk_bounds(
5798 &layout.position_map.snapshot,
5799 line_height,
5800 layout.gutter_hitbox.bounds,
5801 hunk,
5802 );
5803 Some((
5804 hunk_bounds,
5805 cx.theme().colors().version_control_modified,
5806 Corners::all(px(0.)),
5807 DiffHunkStatus::modified_none(),
5808 ))
5809 }
5810 DisplayDiffHunk::Unfolded {
5811 status,
5812 display_row_range,
5813 ..
5814 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
5815 DiffHunkStatusKind::Added => (
5816 hunk_hitbox.bounds,
5817 cx.theme().colors().version_control_added,
5818 Corners::all(px(0.)),
5819 *status,
5820 ),
5821 DiffHunkStatusKind::Modified => (
5822 hunk_hitbox.bounds,
5823 cx.theme().colors().version_control_modified,
5824 Corners::all(px(0.)),
5825 *status,
5826 ),
5827 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
5828 hunk_hitbox.bounds,
5829 cx.theme().colors().version_control_deleted,
5830 Corners::all(px(0.)),
5831 *status,
5832 ),
5833 DiffHunkStatusKind::Deleted => (
5834 Bounds::new(
5835 point(
5836 hunk_hitbox.origin.x - hunk_hitbox.size.width,
5837 hunk_hitbox.origin.y,
5838 ),
5839 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
5840 ),
5841 cx.theme().colors().version_control_deleted,
5842 Corners::all(1. * line_height),
5843 *status,
5844 ),
5845 }),
5846 };
5847
5848 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
5849 // Flatten the background color with the editor color to prevent
5850 // elements below transparent hunks from showing through
5851 let flattened_background_color = cx
5852 .theme()
5853 .colors()
5854 .editor_background
5855 .blend(background_color);
5856
5857 if !Self::diff_hunk_hollow(status, cx) {
5858 window.paint_quad(quad(
5859 hunk_bounds,
5860 corner_radii,
5861 flattened_background_color,
5862 Edges::default(),
5863 transparent_black(),
5864 BorderStyle::default(),
5865 ));
5866 } else {
5867 let flattened_unstaged_background_color = cx
5868 .theme()
5869 .colors()
5870 .editor_background
5871 .blend(background_color.opacity(0.3));
5872
5873 window.paint_quad(quad(
5874 hunk_bounds,
5875 corner_radii,
5876 flattened_unstaged_background_color,
5877 Edges::all(Pixels(1.0)),
5878 flattened_background_color,
5879 BorderStyle::Solid,
5880 ));
5881 }
5882 }
5883 }
5884 });
5885 }
5886
5887 fn gutter_strip_width(line_height: Pixels) -> Pixels {
5888 (0.275 * line_height).floor()
5889 }
5890
5891 fn diff_hunk_bounds(
5892 snapshot: &EditorSnapshot,
5893 line_height: Pixels,
5894 gutter_bounds: Bounds<Pixels>,
5895 hunk: &DisplayDiffHunk,
5896 ) -> Bounds<Pixels> {
5897 let scroll_position = snapshot.scroll_position();
5898 let scroll_top = scroll_position.y * line_height;
5899 let gutter_strip_width = Self::gutter_strip_width(line_height);
5900
5901 match hunk {
5902 DisplayDiffHunk::Folded { display_row, .. } => {
5903 let start_y = display_row.as_f32() * line_height - scroll_top;
5904 let end_y = start_y + line_height;
5905 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5906 let highlight_size = size(gutter_strip_width, end_y - start_y);
5907 Bounds::new(highlight_origin, highlight_size)
5908 }
5909 DisplayDiffHunk::Unfolded {
5910 display_row_range,
5911 status,
5912 ..
5913 } => {
5914 if status.is_deleted() && display_row_range.is_empty() {
5915 let row = display_row_range.start;
5916
5917 let offset = line_height / 2.;
5918 let start_y = row.as_f32() * line_height - offset - scroll_top;
5919 let end_y = start_y + line_height;
5920
5921 let width = (0.35 * line_height).floor();
5922 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5923 let highlight_size = size(width, end_y - start_y);
5924 Bounds::new(highlight_origin, highlight_size)
5925 } else {
5926 let start_row = display_row_range.start;
5927 let end_row = display_row_range.end;
5928 // If we're in a multibuffer, row range span might include an
5929 // excerpt header, so if we were to draw the marker straight away,
5930 // the hunk might include the rows of that header.
5931 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
5932 // Instead, we simply check whether the range we're dealing with includes
5933 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
5934 let end_row_in_current_excerpt = snapshot
5935 .blocks_in_range(start_row..end_row)
5936 .find_map(|(start_row, block)| {
5937 if matches!(
5938 block,
5939 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
5940 ) {
5941 Some(start_row)
5942 } else {
5943 None
5944 }
5945 })
5946 .unwrap_or(end_row);
5947
5948 let start_y = start_row.as_f32() * line_height - scroll_top;
5949 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
5950
5951 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5952 let highlight_size = size(gutter_strip_width, end_y - start_y);
5953 Bounds::new(highlight_origin, highlight_size)
5954 }
5955 }
5956 }
5957 }
5958
5959 fn paint_gutter_indicators(
5960 &self,
5961 layout: &mut EditorLayout,
5962 window: &mut Window,
5963 cx: &mut App,
5964 ) {
5965 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5966 window.with_element_namespace("crease_toggles", |window| {
5967 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
5968 crease_toggle.paint(window, cx);
5969 }
5970 });
5971
5972 window.with_element_namespace("expand_toggles", |window| {
5973 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
5974 expand_toggle.paint(window, cx);
5975 }
5976 });
5977
5978 for breakpoint in layout.breakpoints.iter_mut() {
5979 breakpoint.paint(window, cx);
5980 }
5981
5982 for test_indicator in layout.test_indicators.iter_mut() {
5983 test_indicator.paint(window, cx);
5984 }
5985 });
5986 }
5987
5988 fn paint_gutter_highlights(
5989 &self,
5990 layout: &mut EditorLayout,
5991 window: &mut Window,
5992 cx: &mut App,
5993 ) {
5994 for (_, hunk_hitbox) in &layout.display_hunks {
5995 if let Some(hunk_hitbox) = hunk_hitbox
5996 && !self
5997 .editor
5998 .read(cx)
5999 .buffer()
6000 .read(cx)
6001 .all_diff_hunks_expanded()
6002 {
6003 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
6004 }
6005 }
6006
6007 let show_git_gutter = layout
6008 .position_map
6009 .snapshot
6010 .show_git_diff_gutter
6011 .unwrap_or_else(|| {
6012 matches!(
6013 ProjectSettings::get_global(cx).git.git_gutter,
6014 GitGutterSetting::TrackedFiles
6015 )
6016 });
6017 if show_git_gutter {
6018 Self::paint_gutter_diff_hunks(layout, window, cx)
6019 }
6020
6021 let highlight_width = 0.275 * layout.position_map.line_height;
6022 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
6023 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6024 for (range, color) in &layout.highlighted_gutter_ranges {
6025 let start_row = if range.start.row() < layout.visible_display_row_range.start {
6026 layout.visible_display_row_range.start - DisplayRow(1)
6027 } else {
6028 range.start.row()
6029 };
6030 let end_row = if range.end.row() > layout.visible_display_row_range.end {
6031 layout.visible_display_row_range.end + DisplayRow(1)
6032 } else {
6033 range.end.row()
6034 };
6035
6036 let start_y = layout.gutter_hitbox.top()
6037 + start_row.0 as f32 * layout.position_map.line_height
6038 - layout.position_map.scroll_pixel_position.y;
6039 let end_y = layout.gutter_hitbox.top()
6040 + (end_row.0 + 1) as f32 * layout.position_map.line_height
6041 - layout.position_map.scroll_pixel_position.y;
6042 let bounds = Bounds::from_corners(
6043 point(layout.gutter_hitbox.left(), start_y),
6044 point(layout.gutter_hitbox.left() + highlight_width, end_y),
6045 );
6046 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
6047 }
6048 });
6049 }
6050
6051 fn paint_blamed_display_rows(
6052 &self,
6053 layout: &mut EditorLayout,
6054 window: &mut Window,
6055 cx: &mut App,
6056 ) {
6057 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
6058 return;
6059 };
6060
6061 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6062 for mut blame_element in blamed_display_rows.into_iter() {
6063 blame_element.paint(window, cx);
6064 }
6065 })
6066 }
6067
6068 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6069 window.with_content_mask(
6070 Some(ContentMask {
6071 bounds: layout.position_map.text_hitbox.bounds,
6072 }),
6073 |window| {
6074 let editor = self.editor.read(cx);
6075 if editor.mouse_cursor_hidden {
6076 window.set_window_cursor_style(CursorStyle::None);
6077 } else if let SelectionDragState::ReadyToDrag {
6078 mouse_down_time, ..
6079 } = &editor.selection_drag_state
6080 {
6081 let drag_and_drop_delay = Duration::from_millis(
6082 EditorSettings::get_global(cx).drag_and_drop_selection.delay,
6083 );
6084 if mouse_down_time.elapsed() >= drag_and_drop_delay {
6085 window.set_cursor_style(
6086 CursorStyle::DragCopy,
6087 &layout.position_map.text_hitbox,
6088 );
6089 }
6090 } else if matches!(
6091 editor.selection_drag_state,
6092 SelectionDragState::Dragging { .. }
6093 ) {
6094 window
6095 .set_cursor_style(CursorStyle::DragCopy, &layout.position_map.text_hitbox);
6096 } else if editor
6097 .hovered_link_state
6098 .as_ref()
6099 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
6100 {
6101 window.set_cursor_style(
6102 CursorStyle::PointingHand,
6103 &layout.position_map.text_hitbox,
6104 );
6105 } else {
6106 window.set_cursor_style(CursorStyle::IBeam, &layout.position_map.text_hitbox);
6107 };
6108
6109 self.paint_lines_background(layout, window, cx);
6110 let invisible_display_ranges = self.paint_highlights(layout, window, cx);
6111 self.paint_document_colors(layout, window);
6112 self.paint_lines(&invisible_display_ranges, layout, window, cx);
6113 self.paint_redactions(layout, window);
6114 self.paint_cursors(layout, window, cx);
6115 self.paint_inline_diagnostics(layout, window, cx);
6116 self.paint_inline_blame(layout, window, cx);
6117 self.paint_inline_code_actions(layout, window, cx);
6118 self.paint_diff_hunk_controls(layout, window, cx);
6119 window.with_element_namespace("crease_trailers", |window| {
6120 for trailer in layout.crease_trailers.iter_mut().flatten() {
6121 trailer.element.paint(window, cx);
6122 }
6123 });
6124 },
6125 )
6126 }
6127
6128 fn paint_highlights(
6129 &mut self,
6130 layout: &mut EditorLayout,
6131 window: &mut Window,
6132 cx: &mut App,
6133 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
6134 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6135 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
6136 let line_end_overshoot = 0.15 * layout.position_map.line_height;
6137 for (range, color) in &layout.highlighted_ranges {
6138 self.paint_highlighted_range(
6139 range.clone(),
6140 true,
6141 *color,
6142 Pixels::ZERO,
6143 line_end_overshoot,
6144 layout,
6145 window,
6146 );
6147 }
6148
6149 let corner_radius = if EditorSettings::get_global(cx).rounded_selection {
6150 0.15 * layout.position_map.line_height
6151 } else {
6152 Pixels::ZERO
6153 };
6154
6155 for (player_color, selections) in &layout.selections {
6156 for selection in selections.iter() {
6157 self.paint_highlighted_range(
6158 selection.range.clone(),
6159 true,
6160 player_color.selection,
6161 corner_radius,
6162 corner_radius * 2.,
6163 layout,
6164 window,
6165 );
6166
6167 if selection.is_local && !selection.range.is_empty() {
6168 invisible_display_ranges.push(selection.range.clone());
6169 }
6170 }
6171 }
6172 invisible_display_ranges
6173 })
6174 }
6175
6176 fn paint_lines(
6177 &mut self,
6178 invisible_display_ranges: &[Range<DisplayPoint>],
6179 layout: &mut EditorLayout,
6180 window: &mut Window,
6181 cx: &mut App,
6182 ) {
6183 let whitespace_setting = self
6184 .editor
6185 .read(cx)
6186 .buffer
6187 .read(cx)
6188 .language_settings(cx)
6189 .show_whitespaces;
6190
6191 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6192 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6193 line_with_invisibles.draw(
6194 layout,
6195 row,
6196 layout.content_origin,
6197 whitespace_setting,
6198 invisible_display_ranges,
6199 window,
6200 cx,
6201 )
6202 }
6203
6204 for line_element in &mut layout.line_elements {
6205 line_element.paint(window, cx);
6206 }
6207 }
6208
6209 fn paint_lines_background(
6210 &mut self,
6211 layout: &mut EditorLayout,
6212 window: &mut Window,
6213 cx: &mut App,
6214 ) {
6215 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6216 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6217 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
6218 }
6219 }
6220
6221 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
6222 if layout.redacted_ranges.is_empty() {
6223 return;
6224 }
6225
6226 let line_end_overshoot = layout.line_end_overshoot();
6227
6228 // A softer than perfect black
6229 let redaction_color = gpui::rgb(0x0e1111);
6230
6231 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6232 for range in layout.redacted_ranges.iter() {
6233 self.paint_highlighted_range(
6234 range.clone(),
6235 true,
6236 redaction_color.into(),
6237 Pixels::ZERO,
6238 line_end_overshoot,
6239 layout,
6240 window,
6241 );
6242 }
6243 });
6244 }
6245
6246 fn paint_document_colors(&self, layout: &mut EditorLayout, window: &mut Window) {
6247 let Some((colors_render_mode, image_colors)) = &layout.document_colors else {
6248 return;
6249 };
6250 if image_colors.is_empty()
6251 || colors_render_mode == &DocumentColorsRenderMode::None
6252 || colors_render_mode == &DocumentColorsRenderMode::Inlay
6253 {
6254 return;
6255 }
6256
6257 let line_end_overshoot = layout.line_end_overshoot();
6258
6259 for (range, color) in image_colors {
6260 match colors_render_mode {
6261 DocumentColorsRenderMode::Inlay | DocumentColorsRenderMode::None => return,
6262 DocumentColorsRenderMode::Background => {
6263 self.paint_highlighted_range(
6264 range.clone(),
6265 true,
6266 *color,
6267 Pixels::ZERO,
6268 line_end_overshoot,
6269 layout,
6270 window,
6271 );
6272 }
6273 DocumentColorsRenderMode::Border => {
6274 self.paint_highlighted_range(
6275 range.clone(),
6276 false,
6277 *color,
6278 Pixels::ZERO,
6279 line_end_overshoot,
6280 layout,
6281 window,
6282 );
6283 }
6284 }
6285 }
6286 }
6287
6288 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6289 for cursor in &mut layout.visible_cursors {
6290 cursor.paint(layout.content_origin, window, cx);
6291 }
6292 }
6293
6294 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6295 let Some(scrollbars_layout) = layout.scrollbars_layout.take() else {
6296 return;
6297 };
6298 let any_scrollbar_dragged = self.editor.read(cx).scroll_manager.any_scrollbar_dragged();
6299
6300 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
6301 let hitbox = &scrollbar_layout.hitbox;
6302 if scrollbars_layout.visible {
6303 let scrollbar_edges = match axis {
6304 ScrollbarAxis::Horizontal => Edges {
6305 top: Pixels::ZERO,
6306 right: Pixels::ZERO,
6307 bottom: Pixels::ZERO,
6308 left: Pixels::ZERO,
6309 },
6310 ScrollbarAxis::Vertical => Edges {
6311 top: Pixels::ZERO,
6312 right: Pixels::ZERO,
6313 bottom: Pixels::ZERO,
6314 left: ScrollbarLayout::BORDER_WIDTH,
6315 },
6316 };
6317
6318 window.paint_layer(hitbox.bounds, |window| {
6319 window.paint_quad(quad(
6320 hitbox.bounds,
6321 Corners::default(),
6322 cx.theme().colors().scrollbar_track_background,
6323 scrollbar_edges,
6324 cx.theme().colors().scrollbar_track_border,
6325 BorderStyle::Solid,
6326 ));
6327
6328 if axis == ScrollbarAxis::Vertical {
6329 let fast_markers =
6330 self.collect_fast_scrollbar_markers(layout, scrollbar_layout, cx);
6331 // Refresh slow scrollbar markers in the background. Below, we
6332 // paint whatever markers have already been computed.
6333 self.refresh_slow_scrollbar_markers(layout, scrollbar_layout, window, cx);
6334
6335 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
6336 for marker in markers.iter().chain(&fast_markers) {
6337 let mut marker = marker.clone();
6338 marker.bounds.origin += hitbox.origin;
6339 window.paint_quad(marker);
6340 }
6341 }
6342
6343 if let Some(thumb_bounds) = scrollbar_layout.thumb_bounds {
6344 let scrollbar_thumb_color = match scrollbar_layout.thumb_state {
6345 ScrollbarThumbState::Dragging => {
6346 cx.theme().colors().scrollbar_thumb_active_background
6347 }
6348 ScrollbarThumbState::Hovered => {
6349 cx.theme().colors().scrollbar_thumb_hover_background
6350 }
6351 ScrollbarThumbState::Idle => {
6352 cx.theme().colors().scrollbar_thumb_background
6353 }
6354 };
6355 window.paint_quad(quad(
6356 thumb_bounds,
6357 Corners::default(),
6358 scrollbar_thumb_color,
6359 scrollbar_edges,
6360 cx.theme().colors().scrollbar_thumb_border,
6361 BorderStyle::Solid,
6362 ));
6363
6364 if any_scrollbar_dragged {
6365 window.set_window_cursor_style(CursorStyle::Arrow);
6366 } else {
6367 window.set_cursor_style(CursorStyle::Arrow, hitbox);
6368 }
6369 }
6370 })
6371 }
6372 }
6373
6374 window.on_mouse_event({
6375 let editor = self.editor.clone();
6376 let scrollbars_layout = scrollbars_layout.clone();
6377
6378 let mut mouse_position = window.mouse_position();
6379 move |event: &MouseMoveEvent, phase, window, cx| {
6380 if phase == DispatchPhase::Capture {
6381 return;
6382 }
6383
6384 editor.update(cx, |editor, cx| {
6385 if let Some((scrollbar_layout, axis)) = event
6386 .pressed_button
6387 .filter(|button| *button == MouseButton::Left)
6388 .and(editor.scroll_manager.dragging_scrollbar_axis())
6389 .and_then(|axis| {
6390 scrollbars_layout
6391 .iter_scrollbars()
6392 .find(|(_, a)| *a == axis)
6393 })
6394 {
6395 let ScrollbarLayout {
6396 hitbox,
6397 text_unit_size,
6398 ..
6399 } = scrollbar_layout;
6400
6401 let old_position = mouse_position.along(axis);
6402 let new_position = event.position.along(axis);
6403 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
6404 .contains(&old_position)
6405 {
6406 let position = editor.scroll_position(cx).apply_along(axis, |p| {
6407 (p + (new_position - old_position) / *text_unit_size).max(0.)
6408 });
6409 editor.set_scroll_position(position, window, cx);
6410 }
6411
6412 editor.scroll_manager.show_scrollbars(window, cx);
6413 cx.stop_propagation();
6414 } else if let Some((layout, axis)) = scrollbars_layout
6415 .get_hovered_axis(window)
6416 .filter(|_| !event.dragging())
6417 {
6418 if layout.thumb_hovered(&event.position) {
6419 editor
6420 .scroll_manager
6421 .set_hovered_scroll_thumb_axis(axis, cx);
6422 } else {
6423 editor.scroll_manager.reset_scrollbar_state(cx);
6424 }
6425
6426 editor.scroll_manager.show_scrollbars(window, cx);
6427 } else {
6428 editor.scroll_manager.reset_scrollbar_state(cx);
6429 }
6430
6431 mouse_position = event.position;
6432 })
6433 }
6434 });
6435
6436 if any_scrollbar_dragged {
6437 window.on_mouse_event({
6438 let editor = self.editor.clone();
6439 move |_: &MouseUpEvent, phase, window, cx| {
6440 if phase == DispatchPhase::Capture {
6441 return;
6442 }
6443
6444 editor.update(cx, |editor, cx| {
6445 if let Some((_, axis)) = scrollbars_layout.get_hovered_axis(window) {
6446 editor
6447 .scroll_manager
6448 .set_hovered_scroll_thumb_axis(axis, cx);
6449 } else {
6450 editor.scroll_manager.reset_scrollbar_state(cx);
6451 }
6452 cx.stop_propagation();
6453 });
6454 }
6455 });
6456 } else {
6457 window.on_mouse_event({
6458 let editor = self.editor.clone();
6459
6460 move |event: &MouseDownEvent, phase, window, cx| {
6461 if phase == DispatchPhase::Capture {
6462 return;
6463 }
6464 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
6465 else {
6466 return;
6467 };
6468
6469 let ScrollbarLayout {
6470 hitbox,
6471 visible_range,
6472 text_unit_size,
6473 thumb_bounds,
6474 ..
6475 } = scrollbar_layout;
6476
6477 let Some(thumb_bounds) = thumb_bounds else {
6478 return;
6479 };
6480
6481 editor.update(cx, |editor, cx| {
6482 editor
6483 .scroll_manager
6484 .set_dragged_scroll_thumb_axis(axis, cx);
6485
6486 let event_position = event.position.along(axis);
6487
6488 if event_position < thumb_bounds.origin.along(axis)
6489 || thumb_bounds.bottom_right().along(axis) < event_position
6490 {
6491 let center_position = ((event_position - hitbox.origin.along(axis))
6492 / *text_unit_size)
6493 .round() as u32;
6494 let start_position = center_position.saturating_sub(
6495 (visible_range.end - visible_range.start) as u32 / 2,
6496 );
6497
6498 let position = editor
6499 .scroll_position(cx)
6500 .apply_along(axis, |_| start_position as f32);
6501
6502 editor.set_scroll_position(position, window, cx);
6503 } else {
6504 editor.scroll_manager.show_scrollbars(window, cx);
6505 }
6506
6507 cx.stop_propagation();
6508 });
6509 }
6510 });
6511 }
6512 }
6513
6514 fn collect_fast_scrollbar_markers(
6515 &self,
6516 layout: &EditorLayout,
6517 scrollbar_layout: &ScrollbarLayout,
6518 cx: &mut App,
6519 ) -> Vec<PaintQuad> {
6520 const LIMIT: usize = 100;
6521 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
6522 return vec![];
6523 }
6524 let cursor_ranges = layout
6525 .cursors
6526 .iter()
6527 .map(|(point, color)| ColoredRange {
6528 start: point.row(),
6529 end: point.row(),
6530 color: *color,
6531 })
6532 .collect_vec();
6533 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
6534 }
6535
6536 fn refresh_slow_scrollbar_markers(
6537 &self,
6538 layout: &EditorLayout,
6539 scrollbar_layout: &ScrollbarLayout,
6540 window: &mut Window,
6541 cx: &mut App,
6542 ) {
6543 self.editor.update(cx, |editor, cx| {
6544 if !editor.is_singleton(cx)
6545 || !editor
6546 .scrollbar_marker_state
6547 .should_refresh(scrollbar_layout.hitbox.size)
6548 {
6549 return;
6550 }
6551
6552 let scrollbar_layout = scrollbar_layout.clone();
6553 let background_highlights = editor.background_highlights.clone();
6554 let snapshot = layout.position_map.snapshot.clone();
6555 let theme = cx.theme().clone();
6556 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
6557
6558 editor.scrollbar_marker_state.dirty = false;
6559 editor.scrollbar_marker_state.pending_refresh =
6560 Some(cx.spawn_in(window, async move |editor, cx| {
6561 let scrollbar_size = scrollbar_layout.hitbox.size;
6562 let scrollbar_markers = cx
6563 .background_spawn(async move {
6564 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
6565 let mut marker_quads = Vec::new();
6566 if scrollbar_settings.git_diff {
6567 let marker_row_ranges =
6568 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
6569 let start_display_row =
6570 MultiBufferPoint::new(hunk.row_range.start.0, 0)
6571 .to_display_point(&snapshot.display_snapshot)
6572 .row();
6573 let mut end_display_row =
6574 MultiBufferPoint::new(hunk.row_range.end.0, 0)
6575 .to_display_point(&snapshot.display_snapshot)
6576 .row();
6577 if end_display_row != start_display_row {
6578 end_display_row.0 -= 1;
6579 }
6580 let color = match &hunk.status().kind {
6581 DiffHunkStatusKind::Added => {
6582 theme.colors().version_control_added
6583 }
6584 DiffHunkStatusKind::Modified => {
6585 theme.colors().version_control_modified
6586 }
6587 DiffHunkStatusKind::Deleted => {
6588 theme.colors().version_control_deleted
6589 }
6590 };
6591 ColoredRange {
6592 start: start_display_row,
6593 end: end_display_row,
6594 color,
6595 }
6596 });
6597
6598 marker_quads.extend(
6599 scrollbar_layout
6600 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
6601 );
6602 }
6603
6604 for (background_highlight_id, (_, background_ranges)) in
6605 background_highlights.iter()
6606 {
6607 let is_search_highlights = *background_highlight_id
6608 == HighlightKey::Type(TypeId::of::<BufferSearchHighlights>());
6609 let is_text_highlights = *background_highlight_id
6610 == HighlightKey::Type(TypeId::of::<SelectedTextHighlight>());
6611 let is_symbol_occurrences = *background_highlight_id
6612 == HighlightKey::Type(TypeId::of::<DocumentHighlightRead>())
6613 || *background_highlight_id
6614 == HighlightKey::Type(
6615 TypeId::of::<DocumentHighlightWrite>(),
6616 );
6617 if (is_search_highlights && scrollbar_settings.search_results)
6618 || (is_text_highlights && scrollbar_settings.selected_text)
6619 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
6620 {
6621 let mut color = theme.status().info;
6622 if is_symbol_occurrences {
6623 color.fade_out(0.5);
6624 }
6625 let marker_row_ranges = background_ranges.iter().map(|range| {
6626 let display_start = range
6627 .start
6628 .to_display_point(&snapshot.display_snapshot);
6629 let display_end =
6630 range.end.to_display_point(&snapshot.display_snapshot);
6631 ColoredRange {
6632 start: display_start.row(),
6633 end: display_end.row(),
6634 color,
6635 }
6636 });
6637 marker_quads.extend(
6638 scrollbar_layout
6639 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
6640 );
6641 }
6642 }
6643
6644 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
6645 let diagnostics = snapshot
6646 .buffer_snapshot
6647 .diagnostics_in_range::<Point>(Point::zero()..max_point)
6648 // Don't show diagnostics the user doesn't care about
6649 .filter(|diagnostic| {
6650 match (
6651 scrollbar_settings.diagnostics,
6652 diagnostic.diagnostic.severity,
6653 ) {
6654 (ScrollbarDiagnostics::All, _) => true,
6655 (
6656 ScrollbarDiagnostics::Error,
6657 lsp::DiagnosticSeverity::ERROR,
6658 ) => true,
6659 (
6660 ScrollbarDiagnostics::Warning,
6661 lsp::DiagnosticSeverity::ERROR
6662 | lsp::DiagnosticSeverity::WARNING,
6663 ) => true,
6664 (
6665 ScrollbarDiagnostics::Information,
6666 lsp::DiagnosticSeverity::ERROR
6667 | lsp::DiagnosticSeverity::WARNING
6668 | lsp::DiagnosticSeverity::INFORMATION,
6669 ) => true,
6670 (_, _) => false,
6671 }
6672 })
6673 // We want to sort by severity, in order to paint the most severe diagnostics last.
6674 .sorted_by_key(|diagnostic| {
6675 std::cmp::Reverse(diagnostic.diagnostic.severity)
6676 });
6677
6678 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
6679 let start_display = diagnostic
6680 .range
6681 .start
6682 .to_display_point(&snapshot.display_snapshot);
6683 let end_display = diagnostic
6684 .range
6685 .end
6686 .to_display_point(&snapshot.display_snapshot);
6687 let color = match diagnostic.diagnostic.severity {
6688 lsp::DiagnosticSeverity::ERROR => theme.status().error,
6689 lsp::DiagnosticSeverity::WARNING => theme.status().warning,
6690 lsp::DiagnosticSeverity::INFORMATION => theme.status().info,
6691 _ => theme.status().hint,
6692 };
6693 ColoredRange {
6694 start: start_display.row(),
6695 end: end_display.row(),
6696 color,
6697 }
6698 });
6699 marker_quads.extend(
6700 scrollbar_layout
6701 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
6702 );
6703 }
6704
6705 Arc::from(marker_quads)
6706 })
6707 .await;
6708
6709 editor.update(cx, |editor, cx| {
6710 editor.scrollbar_marker_state.markers = scrollbar_markers;
6711 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
6712 editor.scrollbar_marker_state.pending_refresh = None;
6713 cx.notify();
6714 })?;
6715
6716 Ok(())
6717 }));
6718 });
6719 }
6720
6721 fn paint_highlighted_range(
6722 &self,
6723 range: Range<DisplayPoint>,
6724 fill: bool,
6725 color: Hsla,
6726 corner_radius: Pixels,
6727 line_end_overshoot: Pixels,
6728 layout: &EditorLayout,
6729 window: &mut Window,
6730 ) {
6731 let start_row = layout.visible_display_row_range.start;
6732 let end_row = layout.visible_display_row_range.end;
6733 if range.start != range.end {
6734 let row_range = if range.end.column() == 0 {
6735 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
6736 } else {
6737 cmp::max(range.start.row(), start_row)
6738 ..cmp::min(range.end.row().next_row(), end_row)
6739 };
6740
6741 let highlighted_range = HighlightedRange {
6742 color,
6743 line_height: layout.position_map.line_height,
6744 corner_radius,
6745 start_y: layout.content_origin.y
6746 + row_range.start.as_f32() * layout.position_map.line_height
6747 - layout.position_map.scroll_pixel_position.y,
6748 lines: row_range
6749 .iter_rows()
6750 .map(|row| {
6751 let line_layout =
6752 &layout.position_map.line_layouts[row.minus(start_row) as usize];
6753 HighlightedRangeLine {
6754 start_x: if row == range.start.row() {
6755 layout.content_origin.x
6756 + line_layout.x_for_index(range.start.column() as usize)
6757 - layout.position_map.scroll_pixel_position.x
6758 } else {
6759 layout.content_origin.x
6760 - layout.position_map.scroll_pixel_position.x
6761 },
6762 end_x: if row == range.end.row() {
6763 layout.content_origin.x
6764 + line_layout.x_for_index(range.end.column() as usize)
6765 - layout.position_map.scroll_pixel_position.x
6766 } else {
6767 layout.content_origin.x + line_layout.width + line_end_overshoot
6768 - layout.position_map.scroll_pixel_position.x
6769 },
6770 }
6771 })
6772 .collect(),
6773 };
6774
6775 highlighted_range.paint(fill, layout.position_map.text_hitbox.bounds, window);
6776 }
6777 }
6778
6779 fn paint_inline_diagnostics(
6780 &mut self,
6781 layout: &mut EditorLayout,
6782 window: &mut Window,
6783 cx: &mut App,
6784 ) {
6785 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
6786 inline_diagnostic.1.paint(window, cx);
6787 }
6788 }
6789
6790 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6791 if let Some(mut blame_layout) = layout.inline_blame_layout.take() {
6792 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6793 blame_layout.element.paint(window, cx);
6794 })
6795 }
6796 }
6797
6798 fn paint_inline_code_actions(
6799 &mut self,
6800 layout: &mut EditorLayout,
6801 window: &mut Window,
6802 cx: &mut App,
6803 ) {
6804 if let Some(mut inline_code_actions) = layout.inline_code_actions.take() {
6805 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6806 inline_code_actions.paint(window, cx);
6807 })
6808 }
6809 }
6810
6811 fn paint_diff_hunk_controls(
6812 &mut self,
6813 layout: &mut EditorLayout,
6814 window: &mut Window,
6815 cx: &mut App,
6816 ) {
6817 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
6818 diff_hunk_control.paint(window, cx);
6819 }
6820 }
6821
6822 fn paint_minimap(&self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6823 if let Some(mut layout) = layout.minimap.take() {
6824 let minimap_hitbox = layout.thumb_layout.hitbox.clone();
6825 let dragging_minimap = self.editor.read(cx).scroll_manager.is_dragging_minimap();
6826
6827 window.paint_layer(layout.thumb_layout.hitbox.bounds, |window| {
6828 window.with_element_namespace("minimap", |window| {
6829 layout.minimap.paint(window, cx);
6830 if let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds {
6831 let minimap_thumb_color = match layout.thumb_layout.thumb_state {
6832 ScrollbarThumbState::Idle => {
6833 cx.theme().colors().minimap_thumb_background
6834 }
6835 ScrollbarThumbState::Hovered => {
6836 cx.theme().colors().minimap_thumb_hover_background
6837 }
6838 ScrollbarThumbState::Dragging => {
6839 cx.theme().colors().minimap_thumb_active_background
6840 }
6841 };
6842 let minimap_thumb_border = match layout.thumb_border_style {
6843 MinimapThumbBorder::Full => Edges::all(ScrollbarLayout::BORDER_WIDTH),
6844 MinimapThumbBorder::LeftOnly => Edges {
6845 left: ScrollbarLayout::BORDER_WIDTH,
6846 ..Default::default()
6847 },
6848 MinimapThumbBorder::LeftOpen => Edges {
6849 right: ScrollbarLayout::BORDER_WIDTH,
6850 top: ScrollbarLayout::BORDER_WIDTH,
6851 bottom: ScrollbarLayout::BORDER_WIDTH,
6852 ..Default::default()
6853 },
6854 MinimapThumbBorder::RightOpen => Edges {
6855 left: ScrollbarLayout::BORDER_WIDTH,
6856 top: ScrollbarLayout::BORDER_WIDTH,
6857 bottom: ScrollbarLayout::BORDER_WIDTH,
6858 ..Default::default()
6859 },
6860 MinimapThumbBorder::None => Default::default(),
6861 };
6862
6863 window.paint_layer(minimap_hitbox.bounds, |window| {
6864 window.paint_quad(quad(
6865 thumb_bounds,
6866 Corners::default(),
6867 minimap_thumb_color,
6868 minimap_thumb_border,
6869 cx.theme().colors().minimap_thumb_border,
6870 BorderStyle::Solid,
6871 ));
6872 });
6873 }
6874 });
6875 });
6876
6877 if dragging_minimap {
6878 window.set_window_cursor_style(CursorStyle::Arrow);
6879 } else {
6880 window.set_cursor_style(CursorStyle::Arrow, &minimap_hitbox);
6881 }
6882
6883 let minimap_axis = ScrollbarAxis::Vertical;
6884 let pixels_per_line = (minimap_hitbox.size.height / layout.max_scroll_top)
6885 .min(layout.minimap_line_height);
6886
6887 let mut mouse_position = window.mouse_position();
6888
6889 window.on_mouse_event({
6890 let editor = self.editor.clone();
6891
6892 let minimap_hitbox = minimap_hitbox.clone();
6893
6894 move |event: &MouseMoveEvent, phase, window, cx| {
6895 if phase == DispatchPhase::Capture {
6896 return;
6897 }
6898
6899 editor.update(cx, |editor, cx| {
6900 if event.pressed_button == Some(MouseButton::Left)
6901 && editor.scroll_manager.is_dragging_minimap()
6902 {
6903 let old_position = mouse_position.along(minimap_axis);
6904 let new_position = event.position.along(minimap_axis);
6905 if (minimap_hitbox.origin.along(minimap_axis)
6906 ..minimap_hitbox.bottom_right().along(minimap_axis))
6907 .contains(&old_position)
6908 {
6909 let position =
6910 editor.scroll_position(cx).apply_along(minimap_axis, |p| {
6911 (p + (new_position - old_position) / pixels_per_line)
6912 .max(0.)
6913 });
6914 editor.set_scroll_position(position, window, cx);
6915 }
6916 cx.stop_propagation();
6917 } else if minimap_hitbox.is_hovered(window) {
6918 editor.scroll_manager.set_is_hovering_minimap_thumb(
6919 !event.dragging()
6920 && layout
6921 .thumb_layout
6922 .thumb_bounds
6923 .is_some_and(|bounds| bounds.contains(&event.position)),
6924 cx,
6925 );
6926
6927 // Stop hover events from propagating to the
6928 // underlying editor if the minimap hitbox is hovered
6929 if !event.dragging() {
6930 cx.stop_propagation();
6931 }
6932 } else {
6933 editor.scroll_manager.hide_minimap_thumb(cx);
6934 }
6935 mouse_position = event.position;
6936 });
6937 }
6938 });
6939
6940 if dragging_minimap {
6941 window.on_mouse_event({
6942 let editor = self.editor.clone();
6943 move |event: &MouseUpEvent, phase, window, cx| {
6944 if phase == DispatchPhase::Capture {
6945 return;
6946 }
6947
6948 editor.update(cx, |editor, cx| {
6949 if minimap_hitbox.is_hovered(window) {
6950 editor.scroll_manager.set_is_hovering_minimap_thumb(
6951 layout
6952 .thumb_layout
6953 .thumb_bounds
6954 .is_some_and(|bounds| bounds.contains(&event.position)),
6955 cx,
6956 );
6957 } else {
6958 editor.scroll_manager.hide_minimap_thumb(cx);
6959 }
6960 cx.stop_propagation();
6961 });
6962 }
6963 });
6964 } else {
6965 window.on_mouse_event({
6966 let editor = self.editor.clone();
6967
6968 move |event: &MouseDownEvent, phase, window, cx| {
6969 if phase == DispatchPhase::Capture || !minimap_hitbox.is_hovered(window) {
6970 return;
6971 }
6972
6973 let event_position = event.position;
6974
6975 let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds else {
6976 return;
6977 };
6978
6979 editor.update(cx, |editor, cx| {
6980 if !thumb_bounds.contains(&event_position) {
6981 let click_position =
6982 event_position.relative_to(&minimap_hitbox.origin).y;
6983
6984 let top_position = (click_position
6985 - thumb_bounds.size.along(minimap_axis) / 2.0)
6986 .max(Pixels::ZERO);
6987
6988 let scroll_offset = (layout.minimap_scroll_top
6989 + top_position / layout.minimap_line_height)
6990 .min(layout.max_scroll_top);
6991
6992 let scroll_position = editor
6993 .scroll_position(cx)
6994 .apply_along(minimap_axis, |_| scroll_offset);
6995 editor.set_scroll_position(scroll_position, window, cx);
6996 }
6997
6998 editor.scroll_manager.set_is_dragging_minimap(cx);
6999 cx.stop_propagation();
7000 });
7001 }
7002 });
7003 }
7004 }
7005 }
7006
7007 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7008 for mut block in layout.blocks.drain(..) {
7009 if block.overlaps_gutter {
7010 block.element.paint(window, cx);
7011 } else {
7012 let mut bounds = layout.hitbox.bounds;
7013 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
7014 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7015 block.element.paint(window, cx);
7016 })
7017 }
7018 }
7019 }
7020
7021 fn paint_edit_prediction_popover(
7022 &mut self,
7023 layout: &mut EditorLayout,
7024 window: &mut Window,
7025 cx: &mut App,
7026 ) {
7027 if let Some(edit_prediction_popover) = layout.edit_prediction_popover.as_mut() {
7028 edit_prediction_popover.paint(window, cx);
7029 }
7030 }
7031
7032 fn paint_mouse_context_menu(
7033 &mut self,
7034 layout: &mut EditorLayout,
7035 window: &mut Window,
7036 cx: &mut App,
7037 ) {
7038 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
7039 mouse_context_menu.paint(window, cx);
7040 }
7041 }
7042
7043 fn paint_scroll_wheel_listener(
7044 &mut self,
7045 layout: &EditorLayout,
7046 window: &mut Window,
7047 cx: &mut App,
7048 ) {
7049 window.on_mouse_event({
7050 let position_map = layout.position_map.clone();
7051 let editor = self.editor.clone();
7052 let hitbox = layout.hitbox.clone();
7053 let mut delta = ScrollDelta::default();
7054
7055 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
7056 // accidentally turn off their scrolling.
7057 let base_scroll_sensitivity =
7058 EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
7059
7060 // Use a minimum fast_scroll_sensitivity for same reason above
7061 let fast_scroll_sensitivity = EditorSettings::get_global(cx)
7062 .fast_scroll_sensitivity
7063 .max(0.01);
7064
7065 move |event: &ScrollWheelEvent, phase, window, cx| {
7066 let scroll_sensitivity = {
7067 if event.modifiers.alt {
7068 fast_scroll_sensitivity
7069 } else {
7070 base_scroll_sensitivity
7071 }
7072 };
7073
7074 if phase == DispatchPhase::Bubble && hitbox.should_handle_scroll(window) {
7075 delta = delta.coalesce(event.delta);
7076 editor.update(cx, |editor, cx| {
7077 let position_map: &PositionMap = &position_map;
7078
7079 let line_height = position_map.line_height;
7080 let max_glyph_advance = position_map.em_advance;
7081 let (delta, axis) = match delta {
7082 gpui::ScrollDelta::Pixels(mut pixels) => {
7083 //Trackpad
7084 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
7085 (pixels, axis)
7086 }
7087
7088 gpui::ScrollDelta::Lines(lines) => {
7089 //Not trackpad
7090 let pixels =
7091 point(lines.x * max_glyph_advance, lines.y * line_height);
7092 (pixels, None)
7093 }
7094 };
7095
7096 let current_scroll_position = position_map.snapshot.scroll_position();
7097 let x = (current_scroll_position.x * max_glyph_advance
7098 - (delta.x * scroll_sensitivity))
7099 / max_glyph_advance;
7100 let y = (current_scroll_position.y * line_height
7101 - (delta.y * scroll_sensitivity))
7102 / line_height;
7103 let mut scroll_position =
7104 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
7105 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
7106 if forbid_vertical_scroll {
7107 scroll_position.y = current_scroll_position.y;
7108 }
7109
7110 if scroll_position != current_scroll_position {
7111 editor.scroll(scroll_position, axis, window, cx);
7112 cx.stop_propagation();
7113 } else if y < 0. {
7114 // Due to clamping, we may fail to detect cases of overscroll to the top;
7115 // We want the scroll manager to get an update in such cases and detect the change of direction
7116 // on the next frame.
7117 cx.notify();
7118 }
7119 });
7120 }
7121 }
7122 });
7123 }
7124
7125 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
7126 if layout.mode.is_minimap() {
7127 return;
7128 }
7129
7130 self.paint_scroll_wheel_listener(layout, window, cx);
7131
7132 window.on_mouse_event({
7133 let position_map = layout.position_map.clone();
7134 let editor = self.editor.clone();
7135 let diff_hunk_range =
7136 layout
7137 .display_hunks
7138 .iter()
7139 .find_map(|(hunk, hunk_hitbox)| match hunk {
7140 DisplayDiffHunk::Folded { .. } => None,
7141 DisplayDiffHunk::Unfolded {
7142 multi_buffer_range, ..
7143 } => {
7144 if hunk_hitbox
7145 .as_ref()
7146 .map(|hitbox| hitbox.is_hovered(window))
7147 .unwrap_or(false)
7148 {
7149 Some(multi_buffer_range.clone())
7150 } else {
7151 None
7152 }
7153 }
7154 });
7155 let line_numbers = layout.line_numbers.clone();
7156
7157 move |event: &MouseDownEvent, phase, window, cx| {
7158 if phase == DispatchPhase::Bubble {
7159 match event.button {
7160 MouseButton::Left => editor.update(cx, |editor, cx| {
7161 let pending_mouse_down = editor
7162 .pending_mouse_down
7163 .get_or_insert_with(Default::default)
7164 .clone();
7165
7166 *pending_mouse_down.borrow_mut() = Some(event.clone());
7167
7168 Self::mouse_left_down(
7169 editor,
7170 event,
7171 diff_hunk_range.clone(),
7172 &position_map,
7173 line_numbers.as_ref(),
7174 window,
7175 cx,
7176 );
7177 }),
7178 MouseButton::Right => editor.update(cx, |editor, cx| {
7179 Self::mouse_right_down(editor, event, &position_map, window, cx);
7180 }),
7181 MouseButton::Middle => editor.update(cx, |editor, cx| {
7182 Self::mouse_middle_down(editor, event, &position_map, window, cx);
7183 }),
7184 _ => {}
7185 };
7186 }
7187 }
7188 });
7189
7190 window.on_mouse_event({
7191 let editor = self.editor.clone();
7192 let position_map = layout.position_map.clone();
7193
7194 move |event: &MouseUpEvent, phase, window, cx| {
7195 if phase == DispatchPhase::Bubble {
7196 editor.update(cx, |editor, cx| {
7197 Self::mouse_up(editor, event, &position_map, window, cx)
7198 });
7199 }
7200 }
7201 });
7202
7203 window.on_mouse_event({
7204 let editor = self.editor.clone();
7205 let position_map = layout.position_map.clone();
7206 let mut captured_mouse_down = None;
7207
7208 move |event: &MouseUpEvent, phase, window, cx| match phase {
7209 // Clear the pending mouse down during the capture phase,
7210 // so that it happens even if another event handler stops
7211 // propagation.
7212 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
7213 let pending_mouse_down = editor
7214 .pending_mouse_down
7215 .get_or_insert_with(Default::default)
7216 .clone();
7217
7218 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
7219 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
7220 captured_mouse_down = pending_mouse_down.take();
7221 window.refresh();
7222 }
7223 }),
7224 // Fire click handlers during the bubble phase.
7225 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
7226 if let Some(mouse_down) = captured_mouse_down.take() {
7227 let event = ClickEvent::Mouse(MouseClickEvent {
7228 down: mouse_down,
7229 up: event.clone(),
7230 });
7231 Self::click(editor, &event, &position_map, window, cx);
7232 }
7233 }),
7234 }
7235 });
7236
7237 window.on_mouse_event({
7238 let position_map = layout.position_map.clone();
7239 let editor = self.editor.clone();
7240
7241 move |event: &MouseMoveEvent, phase, window, cx| {
7242 if phase == DispatchPhase::Bubble {
7243 editor.update(cx, |editor, cx| {
7244 if editor.hover_state.focused(window, cx) {
7245 return;
7246 }
7247 if event.pressed_button == Some(MouseButton::Left)
7248 || event.pressed_button == Some(MouseButton::Middle)
7249 {
7250 Self::mouse_dragged(editor, event, &position_map, window, cx)
7251 }
7252
7253 Self::mouse_moved(editor, event, &position_map, window, cx)
7254 });
7255 }
7256 }
7257 });
7258 }
7259
7260 fn column_pixels(&self, column: usize, window: &Window) -> Pixels {
7261 let style = &self.style;
7262 let font_size = style.text.font_size.to_pixels(window.rem_size());
7263 let layout = window.text_system().shape_line(
7264 SharedString::from(" ".repeat(column)),
7265 font_size,
7266 &[TextRun {
7267 len: column,
7268 font: style.text.font(),
7269 color: Hsla::default(),
7270 background_color: None,
7271 underline: None,
7272 strikethrough: None,
7273 }],
7274 None,
7275 );
7276
7277 layout.width
7278 }
7279
7280 fn max_line_number_width(&self, snapshot: &EditorSnapshot, window: &mut Window) -> Pixels {
7281 let digit_count = snapshot.widest_line_number().ilog10() + 1;
7282 self.column_pixels(digit_count as usize, window)
7283 }
7284
7285 fn shape_line_number(
7286 &self,
7287 text: SharedString,
7288 color: Hsla,
7289 window: &mut Window,
7290 ) -> ShapedLine {
7291 let run = TextRun {
7292 len: text.len(),
7293 font: self.style.text.font(),
7294 color,
7295 background_color: None,
7296 underline: None,
7297 strikethrough: None,
7298 };
7299 window.text_system().shape_line(
7300 text,
7301 self.style.text.font_size.to_pixels(window.rem_size()),
7302 &[run],
7303 None,
7304 )
7305 }
7306
7307 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
7308 let unstaged = status.has_secondary_hunk();
7309 let unstaged_hollow = matches!(
7310 ProjectSettings::get_global(cx).git.hunk_style,
7311 GitHunkStyleSetting::UnstagedHollow
7312 );
7313
7314 unstaged == unstaged_hollow
7315 }
7316
7317 #[cfg(debug_assertions)]
7318 fn layout_debug_ranges(
7319 selections: &mut Vec<(PlayerColor, Vec<SelectionLayout>)>,
7320 anchor_range: Range<Anchor>,
7321 display_snapshot: &DisplaySnapshot,
7322 cx: &App,
7323 ) {
7324 let theme = cx.theme();
7325 text::debug::GlobalDebugRanges::with_locked(|debug_ranges| {
7326 if debug_ranges.ranges.is_empty() {
7327 return;
7328 }
7329 let buffer_snapshot = &display_snapshot.buffer_snapshot;
7330 for (buffer, buffer_range, excerpt_id) in
7331 buffer_snapshot.range_to_buffer_ranges(anchor_range)
7332 {
7333 let buffer_range =
7334 buffer.anchor_after(buffer_range.start)..buffer.anchor_before(buffer_range.end);
7335 selections.extend(debug_ranges.ranges.iter().flat_map(|debug_range| {
7336 let player_color = theme
7337 .players()
7338 .color_for_participant(debug_range.occurrence_index as u32 + 1);
7339 debug_range.ranges.iter().filter_map(move |range| {
7340 if range.start.buffer_id != Some(buffer.remote_id()) {
7341 return None;
7342 }
7343 let clipped_start = range.start.max(&buffer_range.start, buffer);
7344 let clipped_end = range.end.min(&buffer_range.end, buffer);
7345 let range = buffer_snapshot.anchor_in_excerpt(excerpt_id, clipped_start)?
7346 ..buffer_snapshot.anchor_in_excerpt(excerpt_id, clipped_end)?;
7347 let start = range.start.to_display_point(display_snapshot);
7348 let end = range.end.to_display_point(display_snapshot);
7349 let selection_layout = SelectionLayout {
7350 head: start,
7351 range: start..end,
7352 cursor_shape: CursorShape::Bar,
7353 is_newest: false,
7354 is_local: false,
7355 active_rows: start.row()..end.row(),
7356 user_name: Some(SharedString::new(debug_range.value.clone())),
7357 };
7358 Some((player_color, vec![selection_layout]))
7359 })
7360 }));
7361 }
7362 });
7363 }
7364}
7365
7366fn header_jump_data(
7367 snapshot: &EditorSnapshot,
7368 block_row_start: DisplayRow,
7369 height: u32,
7370 for_excerpt: &ExcerptInfo,
7371) -> JumpData {
7372 let range = &for_excerpt.range;
7373 let buffer = &for_excerpt.buffer;
7374 let jump_anchor = range.primary.start;
7375
7376 let excerpt_start = range.context.start;
7377 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
7378 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
7379 0
7380 } else {
7381 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
7382 jump_position.row.saturating_sub(excerpt_start_point.row)
7383 };
7384
7385 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
7386 .saturating_sub(
7387 snapshot
7388 .scroll_anchor
7389 .scroll_position(&snapshot.display_snapshot)
7390 .y as u32,
7391 );
7392
7393 JumpData::MultiBufferPoint {
7394 excerpt_id: for_excerpt.id,
7395 anchor: jump_anchor,
7396 position: jump_position,
7397 line_offset_from_top,
7398 }
7399}
7400
7401pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
7402
7403impl AcceptEditPredictionBinding {
7404 pub fn keystroke(&self) -> Option<&KeybindingKeystroke> {
7405 if let Some(binding) = self.0.as_ref() {
7406 match &binding.keystrokes() {
7407 [keystroke, ..] => Some(keystroke),
7408 _ => None,
7409 }
7410 } else {
7411 None
7412 }
7413 }
7414}
7415
7416fn prepaint_gutter_button(
7417 button: IconButton,
7418 row: DisplayRow,
7419 line_height: Pixels,
7420 gutter_dimensions: &GutterDimensions,
7421 scroll_pixel_position: gpui::Point<Pixels>,
7422 gutter_hitbox: &Hitbox,
7423 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
7424 window: &mut Window,
7425 cx: &mut App,
7426) -> AnyElement {
7427 let mut button = button.into_any_element();
7428
7429 let available_space = size(
7430 AvailableSpace::MinContent,
7431 AvailableSpace::Definite(line_height),
7432 );
7433 let indicator_size = button.layout_as_root(available_space, window, cx);
7434
7435 let blame_width = gutter_dimensions.git_blame_entries_width;
7436 let gutter_width = display_hunks
7437 .binary_search_by(|(hunk, _)| match hunk {
7438 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
7439 DisplayDiffHunk::Unfolded {
7440 display_row_range, ..
7441 } => {
7442 if display_row_range.end <= row {
7443 Ordering::Less
7444 } else if display_row_range.start > row {
7445 Ordering::Greater
7446 } else {
7447 Ordering::Equal
7448 }
7449 }
7450 })
7451 .ok()
7452 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
7453 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
7454
7455 let mut x = left_offset;
7456 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
7457 - indicator_size.width
7458 - left_offset;
7459 x += available_width / 2.;
7460
7461 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
7462 y += (line_height - indicator_size.height) / 2.;
7463
7464 button.prepaint_as_root(
7465 gutter_hitbox.origin + point(x, y),
7466 available_space,
7467 window,
7468 cx,
7469 );
7470 button
7471}
7472
7473fn render_inline_blame_entry(
7474 blame_entry: BlameEntry,
7475 style: &EditorStyle,
7476 cx: &mut App,
7477) -> Option<AnyElement> {
7478 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
7479 renderer.render_inline_blame_entry(&style.text, blame_entry, cx)
7480}
7481
7482fn render_blame_entry_popover(
7483 blame_entry: BlameEntry,
7484 scroll_handle: ScrollHandle,
7485 commit_message: Option<ParsedCommitMessage>,
7486 markdown: Entity<Markdown>,
7487 workspace: WeakEntity<Workspace>,
7488 blame: &Entity<GitBlame>,
7489 buffer: BufferId,
7490 window: &mut Window,
7491 cx: &mut App,
7492) -> Option<AnyElement> {
7493 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
7494 let blame = blame.read(cx);
7495 let repository = blame.repository(cx, buffer)?;
7496 renderer.render_blame_entry_popover(
7497 blame_entry,
7498 scroll_handle,
7499 commit_message,
7500 markdown,
7501 repository,
7502 workspace,
7503 window,
7504 cx,
7505 )
7506}
7507
7508fn render_blame_entry(
7509 ix: usize,
7510 blame: &Entity<GitBlame>,
7511 blame_entry: BlameEntry,
7512 style: &EditorStyle,
7513 last_used_color: &mut Option<(PlayerColor, Oid)>,
7514 editor: Entity<Editor>,
7515 workspace: Entity<Workspace>,
7516 buffer: BufferId,
7517 renderer: Arc<dyn BlameRenderer>,
7518 cx: &mut App,
7519) -> Option<AnyElement> {
7520 let mut sha_color = cx
7521 .theme()
7522 .players()
7523 .color_for_participant(blame_entry.sha.into());
7524
7525 // If the last color we used is the same as the one we get for this line, but
7526 // the commit SHAs are different, then we try again to get a different color.
7527 match *last_used_color {
7528 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
7529 let index: u32 = blame_entry.sha.into();
7530 sha_color = cx.theme().players().color_for_participant(index + 1);
7531 }
7532 _ => {}
7533 };
7534 last_used_color.replace((sha_color, blame_entry.sha));
7535
7536 let blame = blame.read(cx);
7537 let details = blame.details_for_entry(buffer, &blame_entry);
7538 let repository = blame.repository(cx, buffer)?;
7539 renderer.render_blame_entry(
7540 &style.text,
7541 blame_entry,
7542 details,
7543 repository,
7544 workspace.downgrade(),
7545 editor,
7546 ix,
7547 sha_color.cursor,
7548 cx,
7549 )
7550}
7551
7552#[derive(Debug)]
7553pub(crate) struct LineWithInvisibles {
7554 fragments: SmallVec<[LineFragment; 1]>,
7555 invisibles: Vec<Invisible>,
7556 len: usize,
7557 pub(crate) width: Pixels,
7558 font_size: Pixels,
7559}
7560
7561enum LineFragment {
7562 Text(ShapedLine),
7563 Element {
7564 id: ChunkRendererId,
7565 element: Option<AnyElement>,
7566 size: Size<Pixels>,
7567 len: usize,
7568 },
7569}
7570
7571impl fmt::Debug for LineFragment {
7572 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
7573 match self {
7574 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
7575 LineFragment::Element { size, len, .. } => f
7576 .debug_struct("Element")
7577 .field("size", size)
7578 .field("len", len)
7579 .finish(),
7580 }
7581 }
7582}
7583
7584impl LineWithInvisibles {
7585 fn from_chunks<'a>(
7586 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
7587 editor_style: &EditorStyle,
7588 max_line_len: usize,
7589 max_line_count: usize,
7590 editor_mode: &EditorMode,
7591 text_width: Pixels,
7592 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
7593 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
7594 window: &mut Window,
7595 cx: &mut App,
7596 ) -> Vec<Self> {
7597 let text_style = &editor_style.text;
7598 let mut layouts = Vec::with_capacity(max_line_count);
7599 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
7600 let mut line = String::new();
7601 let mut invisibles = Vec::new();
7602 let mut width = Pixels::ZERO;
7603 let mut len = 0;
7604 let mut styles = Vec::new();
7605 let mut non_whitespace_added = false;
7606 let mut row = 0;
7607 let mut line_exceeded_max_len = false;
7608 let font_size = text_style.font_size.to_pixels(window.rem_size());
7609 let min_contrast = EditorSettings::get_global(cx).minimum_contrast_for_highlights;
7610
7611 let ellipsis = SharedString::from("β―");
7612
7613 for highlighted_chunk in chunks.chain([HighlightedChunk {
7614 text: "\n",
7615 style: None,
7616 is_tab: false,
7617 is_inlay: false,
7618 replacement: None,
7619 }]) {
7620 if let Some(replacement) = highlighted_chunk.replacement {
7621 if !line.is_empty() {
7622 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
7623 let text_runs: &[TextRun] = if segments.is_empty() {
7624 &styles
7625 } else {
7626 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
7627 };
7628 let shaped_line = window.text_system().shape_line(
7629 line.clone().into(),
7630 font_size,
7631 text_runs,
7632 None,
7633 );
7634 width += shaped_line.width;
7635 len += shaped_line.len;
7636 fragments.push(LineFragment::Text(shaped_line));
7637 line.clear();
7638 styles.clear();
7639 }
7640
7641 match replacement {
7642 ChunkReplacement::Renderer(renderer) => {
7643 let available_width = if renderer.constrain_width {
7644 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
7645 ellipsis.clone()
7646 } else {
7647 SharedString::from(Arc::from(highlighted_chunk.text))
7648 };
7649 let shaped_line = window.text_system().shape_line(
7650 chunk,
7651 font_size,
7652 &[text_style.to_run(highlighted_chunk.text.len())],
7653 None,
7654 );
7655 AvailableSpace::Definite(shaped_line.width)
7656 } else {
7657 AvailableSpace::MinContent
7658 };
7659
7660 let mut element = (renderer.render)(&mut ChunkRendererContext {
7661 context: cx,
7662 window,
7663 max_width: text_width,
7664 });
7665 let line_height = text_style.line_height_in_pixels(window.rem_size());
7666 let size = element.layout_as_root(
7667 size(available_width, AvailableSpace::Definite(line_height)),
7668 window,
7669 cx,
7670 );
7671
7672 width += size.width;
7673 len += highlighted_chunk.text.len();
7674 fragments.push(LineFragment::Element {
7675 id: renderer.id,
7676 element: Some(element),
7677 size,
7678 len: highlighted_chunk.text.len(),
7679 });
7680 }
7681 ChunkReplacement::Str(x) => {
7682 let text_style = if let Some(style) = highlighted_chunk.style {
7683 Cow::Owned(text_style.clone().highlight(style))
7684 } else {
7685 Cow::Borrowed(text_style)
7686 };
7687
7688 let run = TextRun {
7689 len: x.len(),
7690 font: text_style.font(),
7691 color: text_style.color,
7692 background_color: text_style.background_color,
7693 underline: text_style.underline,
7694 strikethrough: text_style.strikethrough,
7695 };
7696 let line_layout = window
7697 .text_system()
7698 .shape_line(x, font_size, &[run], None)
7699 .with_len(highlighted_chunk.text.len());
7700
7701 width += line_layout.width;
7702 len += highlighted_chunk.text.len();
7703 fragments.push(LineFragment::Text(line_layout))
7704 }
7705 }
7706 } else {
7707 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
7708 if ix > 0 {
7709 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
7710 let text_runs = if segments.is_empty() {
7711 &styles
7712 } else {
7713 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
7714 };
7715 let shaped_line = window.text_system().shape_line(
7716 line.clone().into(),
7717 font_size,
7718 text_runs,
7719 None,
7720 );
7721 width += shaped_line.width;
7722 len += shaped_line.len;
7723 fragments.push(LineFragment::Text(shaped_line));
7724 layouts.push(Self {
7725 width: mem::take(&mut width),
7726 len: mem::take(&mut len),
7727 fragments: mem::take(&mut fragments),
7728 invisibles: std::mem::take(&mut invisibles),
7729 font_size,
7730 });
7731
7732 line.clear();
7733 styles.clear();
7734 row += 1;
7735 line_exceeded_max_len = false;
7736 non_whitespace_added = false;
7737 if row == max_line_count {
7738 return layouts;
7739 }
7740 }
7741
7742 if !line_chunk.is_empty() && !line_exceeded_max_len {
7743 let text_style = if let Some(style) = highlighted_chunk.style {
7744 Cow::Owned(text_style.clone().highlight(style))
7745 } else {
7746 Cow::Borrowed(text_style)
7747 };
7748
7749 if line.len() + line_chunk.len() > max_line_len {
7750 let mut chunk_len = max_line_len - line.len();
7751 while !line_chunk.is_char_boundary(chunk_len) {
7752 chunk_len -= 1;
7753 }
7754 line_chunk = &line_chunk[..chunk_len];
7755 line_exceeded_max_len = true;
7756 }
7757
7758 styles.push(TextRun {
7759 len: line_chunk.len(),
7760 font: text_style.font(),
7761 color: text_style.color,
7762 background_color: text_style.background_color,
7763 underline: text_style.underline,
7764 strikethrough: text_style.strikethrough,
7765 });
7766
7767 if editor_mode.is_full() && !highlighted_chunk.is_inlay {
7768 // Line wrap pads its contents with fake whitespaces,
7769 // avoid printing them
7770 let is_soft_wrapped = is_row_soft_wrapped(row);
7771 if highlighted_chunk.is_tab {
7772 if non_whitespace_added || !is_soft_wrapped {
7773 invisibles.push(Invisible::Tab {
7774 line_start_offset: line.len(),
7775 line_end_offset: line.len() + line_chunk.len(),
7776 });
7777 }
7778 } else {
7779 invisibles.extend(line_chunk.char_indices().filter_map(
7780 |(index, c)| {
7781 let is_whitespace = c.is_whitespace();
7782 non_whitespace_added |= !is_whitespace;
7783 if is_whitespace
7784 && (non_whitespace_added || !is_soft_wrapped)
7785 {
7786 Some(Invisible::Whitespace {
7787 line_offset: line.len() + index,
7788 })
7789 } else {
7790 None
7791 }
7792 },
7793 ))
7794 }
7795 }
7796
7797 line.push_str(line_chunk);
7798 }
7799 }
7800 }
7801 }
7802
7803 layouts
7804 }
7805
7806 /// Takes text runs and non-overlapping left-to-right background ranges with color.
7807 /// Returns new text runs with adjusted contrast as per background ranges.
7808 fn split_runs_by_bg_segments(
7809 text_runs: &[TextRun],
7810 bg_segments: &[(Range<DisplayPoint>, Hsla)],
7811 min_contrast: f32,
7812 start_col_offset: usize,
7813 ) -> Vec<TextRun> {
7814 let mut output_runs: Vec<TextRun> = Vec::with_capacity(text_runs.len());
7815 let mut line_col = start_col_offset;
7816 let mut segment_ix = 0usize;
7817
7818 for text_run in text_runs.iter() {
7819 let run_start_col = line_col;
7820 let run_end_col = run_start_col + text_run.len;
7821 while segment_ix < bg_segments.len()
7822 && (bg_segments[segment_ix].0.end.column() as usize) <= run_start_col
7823 {
7824 segment_ix += 1;
7825 }
7826 let mut cursor_col = run_start_col;
7827 let mut local_segment_ix = segment_ix;
7828 while local_segment_ix < bg_segments.len() {
7829 let (range, segment_color) = &bg_segments[local_segment_ix];
7830 let segment_start_col = range.start.column() as usize;
7831 let segment_end_col = range.end.column() as usize;
7832 if segment_start_col >= run_end_col {
7833 break;
7834 }
7835 if segment_start_col > cursor_col {
7836 let span_len = segment_start_col - cursor_col;
7837 output_runs.push(TextRun {
7838 len: span_len,
7839 font: text_run.font.clone(),
7840 color: text_run.color,
7841 background_color: text_run.background_color,
7842 underline: text_run.underline,
7843 strikethrough: text_run.strikethrough,
7844 });
7845 cursor_col = segment_start_col;
7846 }
7847 let segment_slice_end_col = segment_end_col.min(run_end_col);
7848 if segment_slice_end_col > cursor_col {
7849 let new_text_color =
7850 ensure_minimum_contrast(text_run.color, *segment_color, min_contrast);
7851 output_runs.push(TextRun {
7852 len: segment_slice_end_col - cursor_col,
7853 font: text_run.font.clone(),
7854 color: new_text_color,
7855 background_color: text_run.background_color,
7856 underline: text_run.underline,
7857 strikethrough: text_run.strikethrough,
7858 });
7859 cursor_col = segment_slice_end_col;
7860 }
7861 if segment_end_col >= run_end_col {
7862 break;
7863 }
7864 local_segment_ix += 1;
7865 }
7866 if cursor_col < run_end_col {
7867 output_runs.push(TextRun {
7868 len: run_end_col - cursor_col,
7869 font: text_run.font.clone(),
7870 color: text_run.color,
7871 background_color: text_run.background_color,
7872 underline: text_run.underline,
7873 strikethrough: text_run.strikethrough,
7874 });
7875 }
7876 line_col = run_end_col;
7877 segment_ix = local_segment_ix;
7878 }
7879 output_runs
7880 }
7881
7882 fn prepaint(
7883 &mut self,
7884 line_height: Pixels,
7885 scroll_pixel_position: gpui::Point<Pixels>,
7886 row: DisplayRow,
7887 content_origin: gpui::Point<Pixels>,
7888 line_elements: &mut SmallVec<[AnyElement; 1]>,
7889 window: &mut Window,
7890 cx: &mut App,
7891 ) {
7892 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
7893 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
7894 for fragment in &mut self.fragments {
7895 match fragment {
7896 LineFragment::Text(line) => {
7897 fragment_origin.x += line.width;
7898 }
7899 LineFragment::Element { element, size, .. } => {
7900 let mut element = element
7901 .take()
7902 .expect("you can't prepaint LineWithInvisibles twice");
7903
7904 // Center the element vertically within the line.
7905 let mut element_origin = fragment_origin;
7906 element_origin.y += (line_height - size.height) / 2.;
7907 element.prepaint_at(element_origin, window, cx);
7908 line_elements.push(element);
7909
7910 fragment_origin.x += size.width;
7911 }
7912 }
7913 }
7914 }
7915
7916 fn draw(
7917 &self,
7918 layout: &EditorLayout,
7919 row: DisplayRow,
7920 content_origin: gpui::Point<Pixels>,
7921 whitespace_setting: ShowWhitespaceSetting,
7922 selection_ranges: &[Range<DisplayPoint>],
7923 window: &mut Window,
7924 cx: &mut App,
7925 ) {
7926 let line_height = layout.position_map.line_height;
7927 let line_y = line_height
7928 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
7929
7930 let mut fragment_origin =
7931 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
7932
7933 for fragment in &self.fragments {
7934 match fragment {
7935 LineFragment::Text(line) => {
7936 line.paint(fragment_origin, line_height, window, cx)
7937 .log_err();
7938 fragment_origin.x += line.width;
7939 }
7940 LineFragment::Element { size, .. } => {
7941 fragment_origin.x += size.width;
7942 }
7943 }
7944 }
7945
7946 self.draw_invisibles(
7947 selection_ranges,
7948 layout,
7949 content_origin,
7950 line_y,
7951 row,
7952 line_height,
7953 whitespace_setting,
7954 window,
7955 cx,
7956 );
7957 }
7958
7959 fn draw_background(
7960 &self,
7961 layout: &EditorLayout,
7962 row: DisplayRow,
7963 content_origin: gpui::Point<Pixels>,
7964 window: &mut Window,
7965 cx: &mut App,
7966 ) {
7967 let line_height = layout.position_map.line_height;
7968 let line_y = line_height
7969 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
7970
7971 let mut fragment_origin =
7972 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
7973
7974 for fragment in &self.fragments {
7975 match fragment {
7976 LineFragment::Text(line) => {
7977 line.paint_background(fragment_origin, line_height, window, cx)
7978 .log_err();
7979 fragment_origin.x += line.width;
7980 }
7981 LineFragment::Element { size, .. } => {
7982 fragment_origin.x += size.width;
7983 }
7984 }
7985 }
7986 }
7987
7988 fn draw_invisibles(
7989 &self,
7990 selection_ranges: &[Range<DisplayPoint>],
7991 layout: &EditorLayout,
7992 content_origin: gpui::Point<Pixels>,
7993 line_y: Pixels,
7994 row: DisplayRow,
7995 line_height: Pixels,
7996 whitespace_setting: ShowWhitespaceSetting,
7997 window: &mut Window,
7998 cx: &mut App,
7999 ) {
8000 let extract_whitespace_info = |invisible: &Invisible| {
8001 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
8002 Invisible::Tab {
8003 line_start_offset,
8004 line_end_offset,
8005 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
8006 Invisible::Whitespace { line_offset } => {
8007 (*line_offset, line_offset + 1, &layout.space_invisible)
8008 }
8009 };
8010
8011 let x_offset = self.x_for_index(token_offset);
8012 let invisible_offset =
8013 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
8014 let origin = content_origin
8015 + gpui::point(
8016 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
8017 line_y,
8018 );
8019
8020 (
8021 [token_offset, token_end_offset],
8022 Box::new(move |window: &mut Window, cx: &mut App| {
8023 invisible_symbol
8024 .paint(origin, line_height, window, cx)
8025 .log_err();
8026 }),
8027 )
8028 };
8029
8030 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
8031 match whitespace_setting {
8032 ShowWhitespaceSetting::None => (),
8033 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
8034 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
8035 let invisible_point = DisplayPoint::new(row, start as u32);
8036 if !selection_ranges
8037 .iter()
8038 .any(|region| region.start <= invisible_point && invisible_point < region.end)
8039 {
8040 return;
8041 }
8042
8043 paint(window, cx);
8044 }),
8045
8046 ShowWhitespaceSetting::Trailing => {
8047 let mut previous_start = self.len;
8048 for ([start, end], paint) in invisible_iter.rev() {
8049 if previous_start != end {
8050 break;
8051 }
8052 previous_start = start;
8053 paint(window, cx);
8054 }
8055 }
8056
8057 // For a whitespace to be on a boundary, any of the following conditions need to be met:
8058 // - It is a tab
8059 // - It is adjacent to an edge (start or end)
8060 // - It is adjacent to a whitespace (left or right)
8061 ShowWhitespaceSetting::Boundary => {
8062 // 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
8063 // the above cases.
8064 // Note: We zip in the original `invisibles` to check for tab equality
8065 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
8066 for (([start, end], paint), invisible) in
8067 invisible_iter.zip_eq(self.invisibles.iter())
8068 {
8069 let should_render = match (&last_seen, invisible) {
8070 (_, Invisible::Tab { .. }) => true,
8071 (Some((_, last_end, _)), _) => *last_end == start,
8072 _ => false,
8073 };
8074
8075 if should_render || start == 0 || end == self.len {
8076 paint(window, cx);
8077
8078 // Since we are scanning from the left, we will skip over the first available whitespace that is part
8079 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
8080 if let Some((should_render_last, last_end, paint_last)) = last_seen {
8081 // Note that we need to make sure that the last one is actually adjacent
8082 if !should_render_last && last_end == start {
8083 paint_last(window, cx);
8084 }
8085 }
8086 }
8087
8088 // Manually render anything within a selection
8089 let invisible_point = DisplayPoint::new(row, start as u32);
8090 if selection_ranges.iter().any(|region| {
8091 region.start <= invisible_point && invisible_point < region.end
8092 }) {
8093 paint(window, cx);
8094 }
8095
8096 last_seen = Some((should_render, end, paint));
8097 }
8098 }
8099 }
8100 }
8101
8102 pub fn x_for_index(&self, index: usize) -> Pixels {
8103 let mut fragment_start_x = Pixels::ZERO;
8104 let mut fragment_start_index = 0;
8105
8106 for fragment in &self.fragments {
8107 match fragment {
8108 LineFragment::Text(shaped_line) => {
8109 let fragment_end_index = fragment_start_index + shaped_line.len;
8110 if index < fragment_end_index {
8111 return fragment_start_x
8112 + shaped_line.x_for_index(index - fragment_start_index);
8113 }
8114 fragment_start_x += shaped_line.width;
8115 fragment_start_index = fragment_end_index;
8116 }
8117 LineFragment::Element { len, size, .. } => {
8118 let fragment_end_index = fragment_start_index + len;
8119 if index < fragment_end_index {
8120 return fragment_start_x;
8121 }
8122 fragment_start_x += size.width;
8123 fragment_start_index = fragment_end_index;
8124 }
8125 }
8126 }
8127
8128 fragment_start_x
8129 }
8130
8131 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
8132 let mut fragment_start_x = Pixels::ZERO;
8133 let mut fragment_start_index = 0;
8134
8135 for fragment in &self.fragments {
8136 match fragment {
8137 LineFragment::Text(shaped_line) => {
8138 let fragment_end_x = fragment_start_x + shaped_line.width;
8139 if x < fragment_end_x {
8140 return Some(
8141 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
8142 );
8143 }
8144 fragment_start_x = fragment_end_x;
8145 fragment_start_index += shaped_line.len;
8146 }
8147 LineFragment::Element { len, size, .. } => {
8148 let fragment_end_x = fragment_start_x + size.width;
8149 if x < fragment_end_x {
8150 return Some(fragment_start_index);
8151 }
8152 fragment_start_index += len;
8153 fragment_start_x = fragment_end_x;
8154 }
8155 }
8156 }
8157
8158 None
8159 }
8160
8161 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
8162 let mut fragment_start_index = 0;
8163
8164 for fragment in &self.fragments {
8165 match fragment {
8166 LineFragment::Text(shaped_line) => {
8167 let fragment_end_index = fragment_start_index + shaped_line.len;
8168 if index < fragment_end_index {
8169 return shaped_line.font_id_for_index(index - fragment_start_index);
8170 }
8171 fragment_start_index = fragment_end_index;
8172 }
8173 LineFragment::Element { len, .. } => {
8174 let fragment_end_index = fragment_start_index + len;
8175 if index < fragment_end_index {
8176 return None;
8177 }
8178 fragment_start_index = fragment_end_index;
8179 }
8180 }
8181 }
8182
8183 None
8184 }
8185}
8186
8187#[derive(Debug, Clone, Copy, PartialEq, Eq)]
8188enum Invisible {
8189 /// A tab character
8190 ///
8191 /// A tab character is internally represented by spaces (configured by the user's tab width)
8192 /// aligned to the nearest column, so it's necessary to store the start and end offset for
8193 /// adjacency checks.
8194 Tab {
8195 line_start_offset: usize,
8196 line_end_offset: usize,
8197 },
8198 Whitespace {
8199 line_offset: usize,
8200 },
8201}
8202
8203impl EditorElement {
8204 /// Returns the rem size to use when rendering the [`EditorElement`].
8205 ///
8206 /// This allows UI elements to scale based on the `buffer_font_size`.
8207 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
8208 match self.editor.read(cx).mode {
8209 EditorMode::Full {
8210 scale_ui_elements_with_buffer_font_size: true,
8211 ..
8212 }
8213 | EditorMode::Minimap { .. } => {
8214 let buffer_font_size = self.style.text.font_size;
8215 match buffer_font_size {
8216 AbsoluteLength::Pixels(pixels) => {
8217 let rem_size_scale = {
8218 // Our default UI font size is 14px on a 16px base scale.
8219 // This means the default UI font size is 0.875rems.
8220 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
8221
8222 // We then determine the delta between a single rem and the default font
8223 // size scale.
8224 let default_font_size_delta = 1. - default_font_size_scale;
8225
8226 // Finally, we add this delta to 1rem to get the scale factor that
8227 // should be used to scale up the UI.
8228 1. + default_font_size_delta
8229 };
8230
8231 Some(pixels * rem_size_scale)
8232 }
8233 AbsoluteLength::Rems(rems) => {
8234 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
8235 }
8236 }
8237 }
8238 // We currently use single-line and auto-height editors in UI contexts,
8239 // so we don't want to scale everything with the buffer font size, as it
8240 // ends up looking off.
8241 _ => None,
8242 }
8243 }
8244
8245 fn editor_with_selections(&self, cx: &App) -> Option<Entity<Editor>> {
8246 if let EditorMode::Minimap { parent } = self.editor.read(cx).mode() {
8247 parent.upgrade()
8248 } else {
8249 Some(self.editor.clone())
8250 }
8251 }
8252}
8253
8254impl Element for EditorElement {
8255 type RequestLayoutState = ();
8256 type PrepaintState = EditorLayout;
8257
8258 fn id(&self) -> Option<ElementId> {
8259 None
8260 }
8261
8262 fn source_location(&self) -> Option<&'static core::panic::Location<'static>> {
8263 None
8264 }
8265
8266 fn request_layout(
8267 &mut self,
8268 _: Option<&GlobalElementId>,
8269 _inspector_id: Option<&gpui::InspectorElementId>,
8270 window: &mut Window,
8271 cx: &mut App,
8272 ) -> (gpui::LayoutId, ()) {
8273 let rem_size = self.rem_size(cx);
8274 window.with_rem_size(rem_size, |window| {
8275 self.editor.update(cx, |editor, cx| {
8276 editor.set_style(self.style.clone(), window, cx);
8277
8278 let layout_id = match editor.mode {
8279 EditorMode::SingleLine => {
8280 let rem_size = window.rem_size();
8281 let height = self.style.text.line_height_in_pixels(rem_size);
8282 let mut style = Style::default();
8283 style.size.height = height.into();
8284 style.size.width = relative(1.).into();
8285 window.request_layout(style, None, cx)
8286 }
8287 EditorMode::AutoHeight {
8288 min_lines,
8289 max_lines,
8290 } => {
8291 let editor_handle = cx.entity();
8292 let max_line_number_width =
8293 self.max_line_number_width(&editor.snapshot(window, cx), window);
8294 window.request_measured_layout(
8295 Style::default(),
8296 move |known_dimensions, available_space, window, cx| {
8297 editor_handle
8298 .update(cx, |editor, cx| {
8299 compute_auto_height_layout(
8300 editor,
8301 min_lines,
8302 max_lines,
8303 max_line_number_width,
8304 known_dimensions,
8305 available_space.width,
8306 window,
8307 cx,
8308 )
8309 })
8310 .unwrap_or_default()
8311 },
8312 )
8313 }
8314 EditorMode::Minimap { .. } => {
8315 let mut style = Style::default();
8316 style.size.width = relative(1.).into();
8317 style.size.height = relative(1.).into();
8318 window.request_layout(style, None, cx)
8319 }
8320 EditorMode::Full {
8321 sized_by_content, ..
8322 } => {
8323 let mut style = Style::default();
8324 style.size.width = relative(1.).into();
8325 if sized_by_content {
8326 let snapshot = editor.snapshot(window, cx);
8327 let line_height =
8328 self.style.text.line_height_in_pixels(window.rem_size());
8329 let scroll_height =
8330 (snapshot.max_point().row().next_row().0 as f32) * line_height;
8331 style.size.height = scroll_height.into();
8332 } else {
8333 style.size.height = relative(1.).into();
8334 }
8335 window.request_layout(style, None, cx)
8336 }
8337 };
8338
8339 (layout_id, ())
8340 })
8341 })
8342 }
8343
8344 fn prepaint(
8345 &mut self,
8346 _: Option<&GlobalElementId>,
8347 _inspector_id: Option<&gpui::InspectorElementId>,
8348 bounds: Bounds<Pixels>,
8349 _: &mut Self::RequestLayoutState,
8350 window: &mut Window,
8351 cx: &mut App,
8352 ) -> Self::PrepaintState {
8353 let text_style = TextStyleRefinement {
8354 font_size: Some(self.style.text.font_size),
8355 line_height: Some(self.style.text.line_height),
8356 ..Default::default()
8357 };
8358
8359 let is_minimap = self.editor.read(cx).mode.is_minimap();
8360
8361 if !is_minimap {
8362 let focus_handle = self.editor.focus_handle(cx);
8363 window.set_view_id(self.editor.entity_id());
8364 window.set_focus_handle(&focus_handle, cx);
8365 }
8366
8367 let rem_size = self.rem_size(cx);
8368 window.with_rem_size(rem_size, |window| {
8369 window.with_text_style(Some(text_style), |window| {
8370 window.with_content_mask(Some(ContentMask { bounds }), |window| {
8371 let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| {
8372 (editor.snapshot(window, cx), editor.read_only(cx))
8373 });
8374 let style = &self.style;
8375
8376 let rem_size = window.rem_size();
8377 let font_id = window.text_system().resolve_font(&style.text.font());
8378 let font_size = style.text.font_size.to_pixels(rem_size);
8379 let line_height = style.text.line_height_in_pixels(rem_size);
8380 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8381 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
8382 let glyph_grid_cell = size(em_advance, line_height);
8383
8384 let gutter_dimensions = snapshot
8385 .gutter_dimensions(
8386 font_id,
8387 font_size,
8388 self.max_line_number_width(&snapshot, window),
8389 cx,
8390 )
8391 .or_else(|| {
8392 self.editor.read(cx).offset_content.then(|| {
8393 GutterDimensions::default_with_margin(font_id, font_size, cx)
8394 })
8395 })
8396 .unwrap_or_default();
8397 let text_width = bounds.size.width - gutter_dimensions.width;
8398
8399 let settings = EditorSettings::get_global(cx);
8400 let scrollbars_shown = settings.scrollbar.show != ShowScrollbar::Never;
8401 let vertical_scrollbar_width = (scrollbars_shown
8402 && settings.scrollbar.axes.vertical
8403 && self.editor.read(cx).show_scrollbars.vertical)
8404 .then_some(style.scrollbar_width)
8405 .unwrap_or_default();
8406 let minimap_width = self
8407 .get_minimap_width(
8408 &settings.minimap,
8409 scrollbars_shown,
8410 text_width,
8411 em_width,
8412 font_size,
8413 rem_size,
8414 cx,
8415 )
8416 .unwrap_or_default();
8417
8418 let right_margin = minimap_width + vertical_scrollbar_width;
8419
8420 let editor_width =
8421 text_width - gutter_dimensions.margin - 2 * em_width - right_margin;
8422 let editor_margins = EditorMargins {
8423 gutter: gutter_dimensions,
8424 right: right_margin,
8425 };
8426
8427 snapshot = self.editor.update(cx, |editor, cx| {
8428 editor.last_bounds = Some(bounds);
8429 editor.gutter_dimensions = gutter_dimensions;
8430 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
8431 editor.set_visible_column_count(editor_width / em_advance);
8432
8433 if matches!(
8434 editor.mode,
8435 EditorMode::AutoHeight { .. } | EditorMode::Minimap { .. }
8436 ) {
8437 snapshot
8438 } else {
8439 let wrap_width_for = |column: u32| (column as f32 * em_advance).ceil();
8440 let wrap_width = match editor.soft_wrap_mode(cx) {
8441 SoftWrap::GitDiff => None,
8442 SoftWrap::None => Some(wrap_width_for(MAX_LINE_LEN as u32 / 2)),
8443 SoftWrap::EditorWidth => Some(editor_width),
8444 SoftWrap::Column(column) => Some(wrap_width_for(column)),
8445 SoftWrap::Bounded(column) => {
8446 Some(editor_width.min(wrap_width_for(column)))
8447 }
8448 };
8449
8450 if editor.set_wrap_width(wrap_width, cx) {
8451 editor.snapshot(window, cx)
8452 } else {
8453 snapshot
8454 }
8455 }
8456 });
8457
8458 let hitbox = window.insert_hitbox(bounds, HitboxBehavior::Normal);
8459 let gutter_hitbox = window.insert_hitbox(
8460 gutter_bounds(bounds, gutter_dimensions),
8461 HitboxBehavior::Normal,
8462 );
8463 let text_hitbox = window.insert_hitbox(
8464 Bounds {
8465 origin: gutter_hitbox.top_right(),
8466 size: size(text_width, bounds.size.height),
8467 },
8468 HitboxBehavior::Normal,
8469 );
8470
8471 // Offset the content_bounds from the text_bounds by the gutter margin (which
8472 // is roughly half a character wide) to make hit testing work more like how we want.
8473 let content_offset = point(editor_margins.gutter.margin, Pixels::ZERO);
8474 let content_origin = text_hitbox.origin + content_offset;
8475
8476 let height_in_lines = bounds.size.height / line_height;
8477 let max_row = snapshot.max_point().row().as_f32();
8478
8479 // The max scroll position for the top of the window
8480 let max_scroll_top = if matches!(
8481 snapshot.mode,
8482 EditorMode::SingleLine
8483 | EditorMode::AutoHeight { .. }
8484 | EditorMode::Full {
8485 sized_by_content: true,
8486 ..
8487 }
8488 ) {
8489 (max_row - height_in_lines + 1.).max(0.)
8490 } else {
8491 let settings = EditorSettings::get_global(cx);
8492 match settings.scroll_beyond_last_line {
8493 ScrollBeyondLastLine::OnePage => max_row,
8494 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
8495 ScrollBeyondLastLine::VerticalScrollMargin => {
8496 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
8497 .max(0.)
8498 }
8499 }
8500 };
8501
8502 let (
8503 autoscroll_request,
8504 autoscroll_containing_element,
8505 needs_horizontal_autoscroll,
8506 ) = self.editor.update(cx, |editor, cx| {
8507 let autoscroll_request = editor.scroll_manager.take_autoscroll_request();
8508
8509 let autoscroll_containing_element =
8510 autoscroll_request.is_some() || editor.has_pending_selection();
8511
8512 let (needs_horizontal_autoscroll, was_scrolled) = editor
8513 .autoscroll_vertically(
8514 bounds,
8515 line_height,
8516 max_scroll_top,
8517 autoscroll_request,
8518 window,
8519 cx,
8520 );
8521 if was_scrolled.0 {
8522 snapshot = editor.snapshot(window, cx);
8523 }
8524 (
8525 autoscroll_request,
8526 autoscroll_containing_element,
8527 needs_horizontal_autoscroll,
8528 )
8529 });
8530
8531 let mut scroll_position = snapshot.scroll_position();
8532 // The scroll position is a fractional point, the whole number of which represents
8533 // the top of the window in terms of display rows.
8534 let start_row = DisplayRow(scroll_position.y as u32);
8535 let max_row = snapshot.max_point().row();
8536 let end_row = cmp::min(
8537 (scroll_position.y + height_in_lines).ceil() as u32,
8538 max_row.next_row().0,
8539 );
8540 let end_row = DisplayRow(end_row);
8541
8542 let row_infos = snapshot
8543 .row_infos(start_row)
8544 .take((start_row..end_row).len())
8545 .collect::<Vec<RowInfo>>();
8546 let is_row_soft_wrapped = |row: usize| {
8547 row_infos
8548 .get(row)
8549 .is_none_or(|info| info.buffer_row.is_none())
8550 };
8551
8552 let start_anchor = if start_row == Default::default() {
8553 Anchor::min()
8554 } else {
8555 snapshot.buffer_snapshot.anchor_before(
8556 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
8557 )
8558 };
8559 let end_anchor = if end_row > max_row {
8560 Anchor::max()
8561 } else {
8562 snapshot.buffer_snapshot.anchor_before(
8563 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
8564 )
8565 };
8566
8567 let mut highlighted_rows = self
8568 .editor
8569 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
8570
8571 let is_light = cx.theme().appearance().is_light();
8572
8573 for (ix, row_info) in row_infos.iter().enumerate() {
8574 let Some(diff_status) = row_info.diff_status else {
8575 continue;
8576 };
8577
8578 let background_color = match diff_status.kind {
8579 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
8580 DiffHunkStatusKind::Deleted => {
8581 cx.theme().colors().version_control_deleted
8582 }
8583 DiffHunkStatusKind::Modified => {
8584 debug_panic!("modified diff status for row info");
8585 continue;
8586 }
8587 };
8588
8589 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
8590
8591 let hollow_highlight = LineHighlight {
8592 background: (background_color.opacity(if is_light {
8593 0.08
8594 } else {
8595 0.06
8596 }))
8597 .into(),
8598 border: Some(if is_light {
8599 background_color.opacity(0.48)
8600 } else {
8601 background_color.opacity(0.36)
8602 }),
8603 include_gutter: true,
8604 type_id: None,
8605 };
8606
8607 let filled_highlight = LineHighlight {
8608 background: solid_background(background_color.opacity(hunk_opacity)),
8609 border: None,
8610 include_gutter: true,
8611 type_id: None,
8612 };
8613
8614 let background = if Self::diff_hunk_hollow(diff_status, cx) {
8615 hollow_highlight
8616 } else {
8617 filled_highlight
8618 };
8619
8620 highlighted_rows
8621 .entry(start_row + DisplayRow(ix as u32))
8622 .or_insert(background);
8623 }
8624
8625 let highlighted_ranges = self
8626 .editor_with_selections(cx)
8627 .map(|editor| {
8628 editor.read(cx).background_highlights_in_range(
8629 start_anchor..end_anchor,
8630 &snapshot.display_snapshot,
8631 cx.theme(),
8632 )
8633 })
8634 .unwrap_or_default();
8635 let highlighted_gutter_ranges =
8636 self.editor.read(cx).gutter_highlights_in_range(
8637 start_anchor..end_anchor,
8638 &snapshot.display_snapshot,
8639 cx,
8640 );
8641
8642 let document_colors = self
8643 .editor
8644 .read(cx)
8645 .colors
8646 .as_ref()
8647 .map(|colors| colors.editor_display_highlights(&snapshot));
8648 let redacted_ranges = self.editor.read(cx).redacted_ranges(
8649 start_anchor..end_anchor,
8650 &snapshot.display_snapshot,
8651 cx,
8652 );
8653
8654 let (local_selections, selected_buffer_ids): (
8655 Vec<Selection<Point>>,
8656 Vec<BufferId>,
8657 ) = self
8658 .editor_with_selections(cx)
8659 .map(|editor| {
8660 editor.update(cx, |editor, cx| {
8661 let all_selections = editor.selections.all::<Point>(cx);
8662 let selected_buffer_ids = if editor.is_singleton(cx) {
8663 Vec::new()
8664 } else {
8665 let mut selected_buffer_ids =
8666 Vec::with_capacity(all_selections.len());
8667
8668 for selection in all_selections {
8669 for buffer_id in snapshot
8670 .buffer_snapshot
8671 .buffer_ids_for_range(selection.range())
8672 {
8673 if selected_buffer_ids.last() != Some(&buffer_id) {
8674 selected_buffer_ids.push(buffer_id);
8675 }
8676 }
8677 }
8678
8679 selected_buffer_ids
8680 };
8681
8682 let mut selections = editor
8683 .selections
8684 .disjoint_in_range(start_anchor..end_anchor, cx);
8685 selections.extend(editor.selections.pending(cx));
8686
8687 (selections, selected_buffer_ids)
8688 })
8689 })
8690 .unwrap_or_default();
8691
8692 let (selections, mut active_rows, newest_selection_head) = self
8693 .layout_selections(
8694 start_anchor,
8695 end_anchor,
8696 &local_selections,
8697 &snapshot,
8698 start_row,
8699 end_row,
8700 window,
8701 cx,
8702 );
8703 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
8704 editor.active_breakpoints(start_row..end_row, window, cx)
8705 });
8706 for (display_row, (_, bp, state)) in &breakpoint_rows {
8707 if bp.is_enabled() && state.is_none_or(|s| s.verified) {
8708 active_rows.entry(*display_row).or_default().breakpoint = true;
8709 }
8710 }
8711
8712 let line_numbers = self.layout_line_numbers(
8713 Some(&gutter_hitbox),
8714 gutter_dimensions,
8715 line_height,
8716 scroll_position,
8717 start_row..end_row,
8718 &row_infos,
8719 &active_rows,
8720 newest_selection_head,
8721 &snapshot,
8722 window,
8723 cx,
8724 );
8725
8726 // We add the gutter breakpoint indicator to breakpoint_rows after painting
8727 // line numbers so we don't paint a line number debug accent color if a user
8728 // has their mouse over that line when a breakpoint isn't there
8729 self.editor.update(cx, |editor, _| {
8730 if let Some(phantom_breakpoint) = &mut editor
8731 .gutter_breakpoint_indicator
8732 .0
8733 .filter(|phantom_breakpoint| phantom_breakpoint.is_active)
8734 {
8735 // Is there a non-phantom breakpoint on this line?
8736 phantom_breakpoint.collides_with_existing_breakpoint = true;
8737 breakpoint_rows
8738 .entry(phantom_breakpoint.display_row)
8739 .or_insert_with(|| {
8740 let position = snapshot.display_point_to_anchor(
8741 DisplayPoint::new(phantom_breakpoint.display_row, 0),
8742 Bias::Right,
8743 );
8744 let breakpoint = Breakpoint::new_standard();
8745 phantom_breakpoint.collides_with_existing_breakpoint = false;
8746 (position, breakpoint, None)
8747 });
8748 }
8749 });
8750
8751 let mut expand_toggles =
8752 window.with_element_namespace("expand_toggles", |window| {
8753 self.layout_expand_toggles(
8754 &gutter_hitbox,
8755 gutter_dimensions,
8756 em_width,
8757 line_height,
8758 scroll_position,
8759 &row_infos,
8760 window,
8761 cx,
8762 )
8763 });
8764
8765 let mut crease_toggles =
8766 window.with_element_namespace("crease_toggles", |window| {
8767 self.layout_crease_toggles(
8768 start_row..end_row,
8769 &row_infos,
8770 &active_rows,
8771 &snapshot,
8772 window,
8773 cx,
8774 )
8775 });
8776 let crease_trailers =
8777 window.with_element_namespace("crease_trailers", |window| {
8778 self.layout_crease_trailers(
8779 row_infos.iter().copied(),
8780 &snapshot,
8781 window,
8782 cx,
8783 )
8784 });
8785
8786 let display_hunks = self.layout_gutter_diff_hunks(
8787 line_height,
8788 &gutter_hitbox,
8789 start_row..end_row,
8790 &snapshot,
8791 window,
8792 cx,
8793 );
8794
8795 let bg_segments_per_row = Self::bg_segments_per_row(
8796 start_row..end_row,
8797 &selections,
8798 &highlighted_ranges,
8799 self.style.background,
8800 );
8801
8802 let mut line_layouts = Self::layout_lines(
8803 start_row..end_row,
8804 &snapshot,
8805 &self.style,
8806 editor_width,
8807 is_row_soft_wrapped,
8808 &bg_segments_per_row,
8809 window,
8810 cx,
8811 );
8812 let new_renderer_widths = (!is_minimap).then(|| {
8813 line_layouts
8814 .iter()
8815 .flat_map(|layout| &layout.fragments)
8816 .filter_map(|fragment| {
8817 if let LineFragment::Element { id, size, .. } = fragment {
8818 Some((*id, size.width))
8819 } else {
8820 None
8821 }
8822 })
8823 });
8824 if new_renderer_widths.is_some_and(|new_renderer_widths| {
8825 self.editor.update(cx, |editor, cx| {
8826 editor.update_renderer_widths(new_renderer_widths, cx)
8827 })
8828 }) {
8829 // If the fold widths have changed, we need to prepaint
8830 // the element again to account for any changes in
8831 // wrapping.
8832 return self.prepaint(None, _inspector_id, bounds, &mut (), window, cx);
8833 }
8834
8835 let longest_line_blame_width = self
8836 .editor
8837 .update(cx, |editor, cx| {
8838 if !editor.show_git_blame_inline {
8839 return None;
8840 }
8841 let blame = editor.blame.as_ref()?;
8842 let (_, blame_entry) = blame
8843 .update(cx, |blame, cx| {
8844 let row_infos =
8845 snapshot.row_infos(snapshot.longest_row()).next()?;
8846 blame.blame_for_rows(&[row_infos], cx).next()
8847 })
8848 .flatten()?;
8849 let mut element = render_inline_blame_entry(blame_entry, style, cx)?;
8850 let inline_blame_padding =
8851 ProjectSettings::get_global(cx).git.inline_blame.padding as f32
8852 * em_advance;
8853 Some(
8854 element
8855 .layout_as_root(AvailableSpace::min_size(), window, cx)
8856 .width
8857 + inline_blame_padding,
8858 )
8859 })
8860 .unwrap_or(Pixels::ZERO);
8861
8862 let longest_line_width = layout_line(
8863 snapshot.longest_row(),
8864 &snapshot,
8865 style,
8866 editor_width,
8867 is_row_soft_wrapped,
8868 window,
8869 cx,
8870 )
8871 .width;
8872
8873 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
8874 text_hitbox.bounds,
8875 glyph_grid_cell,
8876 size(longest_line_width, max_row.as_f32() * line_height),
8877 longest_line_blame_width,
8878 EditorSettings::get_global(cx),
8879 );
8880
8881 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
8882
8883 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
8884 snapshot.sticky_header_excerpt(scroll_position.y)
8885 } else {
8886 None
8887 };
8888 let sticky_header_excerpt_id =
8889 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
8890
8891 let blocks = (!is_minimap)
8892 .then(|| {
8893 window.with_element_namespace("blocks", |window| {
8894 self.render_blocks(
8895 start_row..end_row,
8896 &snapshot,
8897 &hitbox,
8898 &text_hitbox,
8899 editor_width,
8900 &mut scroll_width,
8901 &editor_margins,
8902 em_width,
8903 gutter_dimensions.full_width(),
8904 line_height,
8905 &mut line_layouts,
8906 &local_selections,
8907 &selected_buffer_ids,
8908 is_row_soft_wrapped,
8909 sticky_header_excerpt_id,
8910 window,
8911 cx,
8912 )
8913 })
8914 })
8915 .unwrap_or_else(|| Ok((Vec::default(), HashMap::default())));
8916 let (mut blocks, row_block_types) = match blocks {
8917 Ok(blocks) => blocks,
8918 Err(resized_blocks) => {
8919 self.editor.update(cx, |editor, cx| {
8920 editor.resize_blocks(
8921 resized_blocks,
8922 autoscroll_request.map(|(autoscroll, _)| autoscroll),
8923 cx,
8924 )
8925 });
8926 return self.prepaint(None, _inspector_id, bounds, &mut (), window, cx);
8927 }
8928 };
8929
8930 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
8931 window.with_element_namespace("blocks", |window| {
8932 self.layout_sticky_buffer_header(
8933 sticky_header_excerpt,
8934 scroll_position.y,
8935 line_height,
8936 right_margin,
8937 &snapshot,
8938 &hitbox,
8939 &selected_buffer_ids,
8940 &blocks,
8941 window,
8942 cx,
8943 )
8944 })
8945 });
8946
8947 let start_buffer_row =
8948 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
8949 let end_buffer_row =
8950 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
8951
8952 let scroll_max = point(
8953 ((scroll_width - editor_width) / em_advance).max(0.0),
8954 max_scroll_top,
8955 );
8956
8957 self.editor.update(cx, |editor, cx| {
8958 if editor.scroll_manager.clamp_scroll_left(scroll_max.x) {
8959 scroll_position.x = scroll_position.x.min(scroll_max.x);
8960 }
8961
8962 if needs_horizontal_autoscroll.0
8963 && let Some(new_scroll_position) = editor.autoscroll_horizontally(
8964 start_row,
8965 editor_width,
8966 scroll_width,
8967 em_advance,
8968 &line_layouts,
8969 autoscroll_request,
8970 window,
8971 cx,
8972 )
8973 {
8974 scroll_position = new_scroll_position;
8975 }
8976 });
8977
8978 let scroll_pixel_position = point(
8979 scroll_position.x * em_advance,
8980 scroll_position.y * line_height,
8981 );
8982 let indent_guides = self.layout_indent_guides(
8983 content_origin,
8984 text_hitbox.origin,
8985 start_buffer_row..end_buffer_row,
8986 scroll_pixel_position,
8987 line_height,
8988 &snapshot,
8989 window,
8990 cx,
8991 );
8992
8993 let crease_trailers =
8994 window.with_element_namespace("crease_trailers", |window| {
8995 self.prepaint_crease_trailers(
8996 crease_trailers,
8997 &line_layouts,
8998 line_height,
8999 content_origin,
9000 scroll_pixel_position,
9001 em_width,
9002 window,
9003 cx,
9004 )
9005 });
9006
9007 let (edit_prediction_popover, edit_prediction_popover_origin) = self
9008 .editor
9009 .update(cx, |editor, cx| {
9010 editor.render_edit_prediction_popover(
9011 &text_hitbox.bounds,
9012 content_origin,
9013 right_margin,
9014 &snapshot,
9015 start_row..end_row,
9016 scroll_position.y,
9017 scroll_position.y + height_in_lines,
9018 &line_layouts,
9019 line_height,
9020 scroll_pixel_position,
9021 newest_selection_head,
9022 editor_width,
9023 style,
9024 window,
9025 cx,
9026 )
9027 })
9028 .unzip();
9029
9030 let mut inline_diagnostics = self.layout_inline_diagnostics(
9031 &line_layouts,
9032 &crease_trailers,
9033 &row_block_types,
9034 content_origin,
9035 scroll_pixel_position,
9036 edit_prediction_popover_origin,
9037 start_row,
9038 end_row,
9039 line_height,
9040 em_width,
9041 style,
9042 window,
9043 cx,
9044 );
9045
9046 let mut inline_blame_layout = None;
9047 let mut inline_code_actions = None;
9048 if let Some(newest_selection_head) = newest_selection_head {
9049 let display_row = newest_selection_head.row();
9050 if (start_row..end_row).contains(&display_row)
9051 && !row_block_types.contains_key(&display_row)
9052 {
9053 inline_code_actions = self.layout_inline_code_actions(
9054 newest_selection_head,
9055 content_origin,
9056 scroll_pixel_position,
9057 line_height,
9058 &snapshot,
9059 window,
9060 cx,
9061 );
9062
9063 let line_ix = display_row.minus(start_row) as usize;
9064 if let (Some(row_info), Some(line_layout), Some(crease_trailer)) = (
9065 row_infos.get(line_ix),
9066 line_layouts.get(line_ix),
9067 crease_trailers.get(line_ix),
9068 ) {
9069 let crease_trailer_layout = crease_trailer.as_ref();
9070 if let Some(layout) = self.layout_inline_blame(
9071 display_row,
9072 row_info,
9073 line_layout,
9074 crease_trailer_layout,
9075 em_width,
9076 content_origin,
9077 scroll_pixel_position,
9078 line_height,
9079 &text_hitbox,
9080 window,
9081 cx,
9082 ) {
9083 inline_blame_layout = Some(layout);
9084 // Blame overrides inline diagnostics
9085 inline_diagnostics.remove(&display_row);
9086 }
9087 } else {
9088 log::error!(
9089 "bug: line_ix {} is out of bounds - row_infos.len(): {}, \
9090 line_layouts.len(): {}, \
9091 crease_trailers.len(): {}",
9092 line_ix,
9093 row_infos.len(),
9094 line_layouts.len(),
9095 crease_trailers.len(),
9096 );
9097 }
9098 }
9099 }
9100
9101 let blamed_display_rows = self.layout_blame_entries(
9102 &row_infos,
9103 em_width,
9104 scroll_position,
9105 line_height,
9106 &gutter_hitbox,
9107 gutter_dimensions.git_blame_entries_width,
9108 window,
9109 cx,
9110 );
9111
9112 let line_elements = self.prepaint_lines(
9113 start_row,
9114 &mut line_layouts,
9115 line_height,
9116 scroll_pixel_position,
9117 content_origin,
9118 window,
9119 cx,
9120 );
9121
9122 window.with_element_namespace("blocks", |window| {
9123 self.layout_blocks(
9124 &mut blocks,
9125 &hitbox,
9126 line_height,
9127 scroll_pixel_position,
9128 window,
9129 cx,
9130 );
9131 });
9132
9133 let cursors = self.collect_cursors(&snapshot, cx);
9134 let visible_row_range = start_row..end_row;
9135 let non_visible_cursors = cursors
9136 .iter()
9137 .any(|c| !visible_row_range.contains(&c.0.row()));
9138
9139 let visible_cursors = self.layout_visible_cursors(
9140 &snapshot,
9141 &selections,
9142 &row_block_types,
9143 start_row..end_row,
9144 &line_layouts,
9145 &text_hitbox,
9146 content_origin,
9147 scroll_position,
9148 scroll_pixel_position,
9149 line_height,
9150 em_width,
9151 em_advance,
9152 autoscroll_containing_element,
9153 window,
9154 cx,
9155 );
9156
9157 let scrollbars_layout = self.layout_scrollbars(
9158 &snapshot,
9159 &scrollbar_layout_information,
9160 content_offset,
9161 scroll_position,
9162 non_visible_cursors,
9163 right_margin,
9164 editor_width,
9165 window,
9166 cx,
9167 );
9168
9169 let gutter_settings = EditorSettings::get_global(cx).gutter;
9170
9171 let context_menu_layout =
9172 if let Some(newest_selection_head) = newest_selection_head {
9173 let newest_selection_point =
9174 newest_selection_head.to_point(&snapshot.display_snapshot);
9175 if (start_row..end_row).contains(&newest_selection_head.row()) {
9176 self.layout_cursor_popovers(
9177 line_height,
9178 &text_hitbox,
9179 content_origin,
9180 right_margin,
9181 start_row,
9182 scroll_pixel_position,
9183 &line_layouts,
9184 newest_selection_head,
9185 newest_selection_point,
9186 style,
9187 window,
9188 cx,
9189 )
9190 } else {
9191 None
9192 }
9193 } else {
9194 None
9195 };
9196
9197 self.layout_gutter_menu(
9198 line_height,
9199 &text_hitbox,
9200 content_origin,
9201 right_margin,
9202 scroll_pixel_position,
9203 gutter_dimensions.width - gutter_dimensions.left_padding,
9204 window,
9205 cx,
9206 );
9207
9208 let test_indicators = if gutter_settings.runnables {
9209 self.layout_run_indicators(
9210 line_height,
9211 start_row..end_row,
9212 &row_infos,
9213 scroll_pixel_position,
9214 &gutter_dimensions,
9215 &gutter_hitbox,
9216 &display_hunks,
9217 &snapshot,
9218 &mut breakpoint_rows,
9219 window,
9220 cx,
9221 )
9222 } else {
9223 Vec::new()
9224 };
9225
9226 let show_breakpoints = snapshot
9227 .show_breakpoints
9228 .unwrap_or(gutter_settings.breakpoints);
9229 let breakpoints = if show_breakpoints {
9230 self.layout_breakpoints(
9231 line_height,
9232 start_row..end_row,
9233 scroll_pixel_position,
9234 &gutter_dimensions,
9235 &gutter_hitbox,
9236 &display_hunks,
9237 &snapshot,
9238 breakpoint_rows,
9239 &row_infos,
9240 window,
9241 cx,
9242 )
9243 } else {
9244 Vec::new()
9245 };
9246
9247 self.layout_signature_help(
9248 &hitbox,
9249 content_origin,
9250 scroll_pixel_position,
9251 newest_selection_head,
9252 start_row,
9253 &line_layouts,
9254 line_height,
9255 em_width,
9256 context_menu_layout,
9257 window,
9258 cx,
9259 );
9260
9261 if !cx.has_active_drag() {
9262 self.layout_hover_popovers(
9263 &snapshot,
9264 &hitbox,
9265 start_row..end_row,
9266 content_origin,
9267 scroll_pixel_position,
9268 &line_layouts,
9269 line_height,
9270 em_width,
9271 context_menu_layout,
9272 window,
9273 cx,
9274 );
9275 }
9276
9277 let mouse_context_menu = self.layout_mouse_context_menu(
9278 &snapshot,
9279 start_row..end_row,
9280 content_origin,
9281 window,
9282 cx,
9283 );
9284
9285 window.with_element_namespace("crease_toggles", |window| {
9286 self.prepaint_crease_toggles(
9287 &mut crease_toggles,
9288 line_height,
9289 &gutter_dimensions,
9290 gutter_settings,
9291 scroll_pixel_position,
9292 &gutter_hitbox,
9293 window,
9294 cx,
9295 )
9296 });
9297
9298 window.with_element_namespace("expand_toggles", |window| {
9299 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
9300 });
9301
9302 let wrap_guides = self.layout_wrap_guides(
9303 em_advance,
9304 scroll_position,
9305 content_origin,
9306 scrollbars_layout.as_ref(),
9307 vertical_scrollbar_width,
9308 &hitbox,
9309 window,
9310 cx,
9311 );
9312
9313 let minimap = window.with_element_namespace("minimap", |window| {
9314 self.layout_minimap(
9315 &snapshot,
9316 minimap_width,
9317 scroll_position,
9318 &scrollbar_layout_information,
9319 scrollbars_layout.as_ref(),
9320 window,
9321 cx,
9322 )
9323 });
9324
9325 let invisible_symbol_font_size = font_size / 2.;
9326 let whitespace_map = &self
9327 .editor
9328 .read(cx)
9329 .buffer
9330 .read(cx)
9331 .language_settings(cx)
9332 .whitespace_map;
9333
9334 let tab_char = whitespace_map.tab.clone();
9335 let tab_len = tab_char.len();
9336 let tab_invisible = window.text_system().shape_line(
9337 tab_char,
9338 invisible_symbol_font_size,
9339 &[TextRun {
9340 len: tab_len,
9341 font: self.style.text.font(),
9342 color: cx.theme().colors().editor_invisible,
9343 background_color: None,
9344 underline: None,
9345 strikethrough: None,
9346 }],
9347 None,
9348 );
9349
9350 let space_char = whitespace_map.space.clone();
9351 let space_len = space_char.len();
9352 let space_invisible = window.text_system().shape_line(
9353 space_char,
9354 invisible_symbol_font_size,
9355 &[TextRun {
9356 len: space_len,
9357 font: self.style.text.font(),
9358 color: cx.theme().colors().editor_invisible,
9359 background_color: None,
9360 underline: None,
9361 strikethrough: None,
9362 }],
9363 None,
9364 );
9365
9366 let mode = snapshot.mode.clone();
9367
9368 let (diff_hunk_controls, diff_hunk_control_bounds) = if is_read_only {
9369 (vec![], vec![])
9370 } else {
9371 self.layout_diff_hunk_controls(
9372 start_row..end_row,
9373 &row_infos,
9374 &text_hitbox,
9375 newest_selection_head,
9376 line_height,
9377 right_margin,
9378 scroll_pixel_position,
9379 &display_hunks,
9380 &highlighted_rows,
9381 self.editor.clone(),
9382 window,
9383 cx,
9384 )
9385 };
9386
9387 let position_map = Rc::new(PositionMap {
9388 size: bounds.size,
9389 visible_row_range,
9390 scroll_pixel_position,
9391 scroll_max,
9392 line_layouts,
9393 line_height,
9394 em_width,
9395 em_advance,
9396 snapshot,
9397 gutter_hitbox: gutter_hitbox.clone(),
9398 text_hitbox: text_hitbox.clone(),
9399 inline_blame_bounds: inline_blame_layout
9400 .as_ref()
9401 .map(|layout| (layout.bounds, layout.buffer_id, layout.entry.clone())),
9402 display_hunks: display_hunks.clone(),
9403 diff_hunk_control_bounds,
9404 });
9405
9406 self.editor.update(cx, |editor, _| {
9407 editor.last_position_map = Some(position_map.clone())
9408 });
9409
9410 EditorLayout {
9411 mode,
9412 position_map,
9413 visible_display_row_range: start_row..end_row,
9414 wrap_guides,
9415 indent_guides,
9416 hitbox,
9417 gutter_hitbox,
9418 display_hunks,
9419 content_origin,
9420 scrollbars_layout,
9421 minimap,
9422 active_rows,
9423 highlighted_rows,
9424 highlighted_ranges,
9425 highlighted_gutter_ranges,
9426 redacted_ranges,
9427 document_colors,
9428 line_elements,
9429 line_numbers,
9430 blamed_display_rows,
9431 inline_diagnostics,
9432 inline_blame_layout,
9433 inline_code_actions,
9434 blocks,
9435 cursors,
9436 visible_cursors,
9437 selections,
9438 edit_prediction_popover,
9439 diff_hunk_controls,
9440 mouse_context_menu,
9441 test_indicators,
9442 breakpoints,
9443 crease_toggles,
9444 crease_trailers,
9445 tab_invisible,
9446 space_invisible,
9447 sticky_buffer_header,
9448 expand_toggles,
9449 }
9450 })
9451 })
9452 })
9453 }
9454
9455 fn paint(
9456 &mut self,
9457 _: Option<&GlobalElementId>,
9458 _inspector_id: Option<&gpui::InspectorElementId>,
9459 bounds: Bounds<gpui::Pixels>,
9460 _: &mut Self::RequestLayoutState,
9461 layout: &mut Self::PrepaintState,
9462 window: &mut Window,
9463 cx: &mut App,
9464 ) {
9465 if !layout.mode.is_minimap() {
9466 let focus_handle = self.editor.focus_handle(cx);
9467 let key_context = self
9468 .editor
9469 .update(cx, |editor, cx| editor.key_context(window, cx));
9470
9471 window.set_key_context(key_context);
9472 window.handle_input(
9473 &focus_handle,
9474 ElementInputHandler::new(bounds, self.editor.clone()),
9475 cx,
9476 );
9477 self.register_actions(window, cx);
9478 self.register_key_listeners(window, cx, layout);
9479 }
9480
9481 let text_style = TextStyleRefinement {
9482 font_size: Some(self.style.text.font_size),
9483 line_height: Some(self.style.text.line_height),
9484 ..Default::default()
9485 };
9486 let rem_size = self.rem_size(cx);
9487 window.with_rem_size(rem_size, |window| {
9488 window.with_text_style(Some(text_style), |window| {
9489 window.with_content_mask(Some(ContentMask { bounds }), |window| {
9490 self.paint_mouse_listeners(layout, window, cx);
9491 self.paint_background(layout, window, cx);
9492 self.paint_indent_guides(layout, window, cx);
9493
9494 if layout.gutter_hitbox.size.width > Pixels::ZERO {
9495 self.paint_blamed_display_rows(layout, window, cx);
9496 self.paint_line_numbers(layout, window, cx);
9497 }
9498
9499 self.paint_text(layout, window, cx);
9500
9501 if layout.gutter_hitbox.size.width > Pixels::ZERO {
9502 self.paint_gutter_highlights(layout, window, cx);
9503 self.paint_gutter_indicators(layout, window, cx);
9504 }
9505
9506 if !layout.blocks.is_empty() {
9507 window.with_element_namespace("blocks", |window| {
9508 self.paint_blocks(layout, window, cx);
9509 });
9510 }
9511
9512 window.with_element_namespace("blocks", |window| {
9513 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
9514 sticky_header.paint(window, cx)
9515 }
9516 });
9517
9518 self.paint_minimap(layout, window, cx);
9519 self.paint_scrollbars(layout, window, cx);
9520 self.paint_edit_prediction_popover(layout, window, cx);
9521 self.paint_mouse_context_menu(layout, window, cx);
9522 });
9523 })
9524 })
9525 }
9526}
9527
9528pub(super) fn gutter_bounds(
9529 editor_bounds: Bounds<Pixels>,
9530 gutter_dimensions: GutterDimensions,
9531) -> Bounds<Pixels> {
9532 Bounds {
9533 origin: editor_bounds.origin,
9534 size: size(gutter_dimensions.width, editor_bounds.size.height),
9535 }
9536}
9537
9538#[derive(Clone, Copy)]
9539struct ContextMenuLayout {
9540 y_flipped: bool,
9541 bounds: Bounds<Pixels>,
9542}
9543
9544/// Holds information required for layouting the editor scrollbars.
9545struct ScrollbarLayoutInformation {
9546 /// The bounds of the editor area (excluding the content offset).
9547 editor_bounds: Bounds<Pixels>,
9548 /// The available range to scroll within the document.
9549 scroll_range: Size<Pixels>,
9550 /// The space available for one glyph in the editor.
9551 glyph_grid_cell: Size<Pixels>,
9552}
9553
9554impl ScrollbarLayoutInformation {
9555 pub fn new(
9556 editor_bounds: Bounds<Pixels>,
9557 glyph_grid_cell: Size<Pixels>,
9558 document_size: Size<Pixels>,
9559 longest_line_blame_width: Pixels,
9560 settings: &EditorSettings,
9561 ) -> Self {
9562 let vertical_overscroll = match settings.scroll_beyond_last_line {
9563 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
9564 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
9565 ScrollBeyondLastLine::VerticalScrollMargin => {
9566 (1.0 + settings.vertical_scroll_margin) * glyph_grid_cell.height
9567 }
9568 };
9569
9570 let overscroll = size(longest_line_blame_width, vertical_overscroll);
9571
9572 ScrollbarLayoutInformation {
9573 editor_bounds,
9574 scroll_range: document_size + overscroll,
9575 glyph_grid_cell,
9576 }
9577 }
9578}
9579
9580impl IntoElement for EditorElement {
9581 type Element = Self;
9582
9583 fn into_element(self) -> Self::Element {
9584 self
9585 }
9586}
9587
9588pub struct EditorLayout {
9589 position_map: Rc<PositionMap>,
9590 hitbox: Hitbox,
9591 gutter_hitbox: Hitbox,
9592 content_origin: gpui::Point<Pixels>,
9593 scrollbars_layout: Option<EditorScrollbars>,
9594 minimap: Option<MinimapLayout>,
9595 mode: EditorMode,
9596 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
9597 indent_guides: Option<Vec<IndentGuideLayout>>,
9598 visible_display_row_range: Range<DisplayRow>,
9599 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
9600 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
9601 line_elements: SmallVec<[AnyElement; 1]>,
9602 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
9603 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
9604 blamed_display_rows: Option<Vec<AnyElement>>,
9605 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
9606 inline_blame_layout: Option<InlineBlameLayout>,
9607 inline_code_actions: Option<AnyElement>,
9608 blocks: Vec<BlockLayout>,
9609 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
9610 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
9611 redacted_ranges: Vec<Range<DisplayPoint>>,
9612 cursors: Vec<(DisplayPoint, Hsla)>,
9613 visible_cursors: Vec<CursorLayout>,
9614 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
9615 test_indicators: Vec<AnyElement>,
9616 breakpoints: Vec<AnyElement>,
9617 crease_toggles: Vec<Option<AnyElement>>,
9618 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
9619 diff_hunk_controls: Vec<AnyElement>,
9620 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
9621 edit_prediction_popover: Option<AnyElement>,
9622 mouse_context_menu: Option<AnyElement>,
9623 tab_invisible: ShapedLine,
9624 space_invisible: ShapedLine,
9625 sticky_buffer_header: Option<AnyElement>,
9626 document_colors: Option<(DocumentColorsRenderMode, Vec<(Range<DisplayPoint>, Hsla)>)>,
9627}
9628
9629impl EditorLayout {
9630 fn line_end_overshoot(&self) -> Pixels {
9631 0.15 * self.position_map.line_height
9632 }
9633}
9634
9635struct LineNumberLayout {
9636 shaped_line: ShapedLine,
9637 hitbox: Option<Hitbox>,
9638}
9639
9640struct ColoredRange<T> {
9641 start: T,
9642 end: T,
9643 color: Hsla,
9644}
9645
9646impl Along for ScrollbarAxes {
9647 type Unit = bool;
9648
9649 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
9650 match axis {
9651 ScrollbarAxis::Horizontal => self.horizontal,
9652 ScrollbarAxis::Vertical => self.vertical,
9653 }
9654 }
9655
9656 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
9657 match axis {
9658 ScrollbarAxis::Horizontal => ScrollbarAxes {
9659 horizontal: f(self.horizontal),
9660 vertical: self.vertical,
9661 },
9662 ScrollbarAxis::Vertical => ScrollbarAxes {
9663 horizontal: self.horizontal,
9664 vertical: f(self.vertical),
9665 },
9666 }
9667 }
9668}
9669
9670#[derive(Clone)]
9671struct EditorScrollbars {
9672 pub vertical: Option<ScrollbarLayout>,
9673 pub horizontal: Option<ScrollbarLayout>,
9674 pub visible: bool,
9675}
9676
9677impl EditorScrollbars {
9678 pub fn from_scrollbar_axes(
9679 show_scrollbar: ScrollbarAxes,
9680 layout_information: &ScrollbarLayoutInformation,
9681 content_offset: gpui::Point<Pixels>,
9682 scroll_position: gpui::Point<f32>,
9683 scrollbar_width: Pixels,
9684 right_margin: Pixels,
9685 editor_width: Pixels,
9686 show_scrollbars: bool,
9687 scrollbar_state: Option<&ActiveScrollbarState>,
9688 window: &mut Window,
9689 ) -> Self {
9690 let ScrollbarLayoutInformation {
9691 editor_bounds,
9692 scroll_range,
9693 glyph_grid_cell,
9694 } = layout_information;
9695
9696 let viewport_size = size(editor_width, editor_bounds.size.height);
9697
9698 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
9699 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
9700 Corner::BottomLeft,
9701 editor_bounds.bottom_left(),
9702 size(
9703 // The horizontal viewport size differs from the space available for the
9704 // horizontal scrollbar, so we have to manually stitch it together here.
9705 editor_bounds.size.width - right_margin,
9706 scrollbar_width,
9707 ),
9708 ),
9709 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
9710 Corner::TopRight,
9711 editor_bounds.top_right(),
9712 size(scrollbar_width, viewport_size.height),
9713 ),
9714 };
9715
9716 let mut create_scrollbar_layout = |axis| {
9717 let viewport_size = viewport_size.along(axis);
9718 let scroll_range = scroll_range.along(axis);
9719
9720 // We always want a vertical scrollbar track for scrollbar diagnostic visibility.
9721 (show_scrollbar.along(axis)
9722 && (axis == ScrollbarAxis::Vertical || scroll_range > viewport_size))
9723 .then(|| {
9724 ScrollbarLayout::new(
9725 window.insert_hitbox(scrollbar_bounds_for(axis), HitboxBehavior::Normal),
9726 viewport_size,
9727 scroll_range,
9728 glyph_grid_cell.along(axis),
9729 content_offset.along(axis),
9730 scroll_position.along(axis),
9731 show_scrollbars,
9732 axis,
9733 )
9734 .with_thumb_state(
9735 scrollbar_state.and_then(|state| state.thumb_state_for_axis(axis)),
9736 )
9737 })
9738 };
9739
9740 Self {
9741 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
9742 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
9743 visible: show_scrollbars,
9744 }
9745 }
9746
9747 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
9748 [
9749 (&self.vertical, ScrollbarAxis::Vertical),
9750 (&self.horizontal, ScrollbarAxis::Horizontal),
9751 ]
9752 .into_iter()
9753 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
9754 }
9755
9756 /// Returns the currently hovered scrollbar axis, if any.
9757 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
9758 self.iter_scrollbars()
9759 .find(|s| s.0.hitbox.is_hovered(window))
9760 }
9761}
9762
9763#[derive(Clone)]
9764struct ScrollbarLayout {
9765 hitbox: Hitbox,
9766 visible_range: Range<f32>,
9767 text_unit_size: Pixels,
9768 thumb_bounds: Option<Bounds<Pixels>>,
9769 thumb_state: ScrollbarThumbState,
9770}
9771
9772impl ScrollbarLayout {
9773 const BORDER_WIDTH: Pixels = px(1.0);
9774 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
9775 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
9776 const MIN_THUMB_SIZE: Pixels = px(25.0);
9777
9778 fn new(
9779 scrollbar_track_hitbox: Hitbox,
9780 viewport_size: Pixels,
9781 scroll_range: Pixels,
9782 glyph_space: Pixels,
9783 content_offset: Pixels,
9784 scroll_position: f32,
9785 show_thumb: bool,
9786 axis: ScrollbarAxis,
9787 ) -> Self {
9788 let track_bounds = scrollbar_track_hitbox.bounds;
9789 // The length of the track available to the scrollbar thumb. We deliberately
9790 // exclude the content size here so that the thumb aligns with the content.
9791 let track_length = track_bounds.size.along(axis) - content_offset;
9792
9793 Self::new_with_hitbox_and_track_length(
9794 scrollbar_track_hitbox,
9795 track_length,
9796 viewport_size,
9797 scroll_range,
9798 glyph_space,
9799 content_offset,
9800 scroll_position,
9801 show_thumb,
9802 axis,
9803 )
9804 }
9805
9806 fn for_minimap(
9807 minimap_track_hitbox: Hitbox,
9808 visible_lines: f32,
9809 total_editor_lines: f32,
9810 minimap_line_height: Pixels,
9811 scroll_position: f32,
9812 minimap_scroll_top: f32,
9813 show_thumb: bool,
9814 ) -> Self {
9815 // The scrollbar thumb size is calculated as
9816 // (visible_content/total_content) Γ scrollbar_track_length.
9817 //
9818 // For the minimap's thumb layout, we leverage this by setting the
9819 // scrollbar track length to the entire document size (using minimap line
9820 // height). This creates a thumb that exactly represents the editor
9821 // viewport scaled to minimap proportions.
9822 //
9823 // We adjust the thumb position relative to `minimap_scroll_top` to
9824 // accommodate for the deliberately oversized track.
9825 //
9826 // This approach ensures that the minimap thumb accurately reflects the
9827 // editor's current scroll position whilst nicely synchronizing the minimap
9828 // thumb and scrollbar thumb.
9829 let scroll_range = total_editor_lines * minimap_line_height;
9830 let viewport_size = visible_lines * minimap_line_height;
9831
9832 let track_top_offset = -minimap_scroll_top * minimap_line_height;
9833
9834 Self::new_with_hitbox_and_track_length(
9835 minimap_track_hitbox,
9836 scroll_range,
9837 viewport_size,
9838 scroll_range,
9839 minimap_line_height,
9840 track_top_offset,
9841 scroll_position,
9842 show_thumb,
9843 ScrollbarAxis::Vertical,
9844 )
9845 }
9846
9847 fn new_with_hitbox_and_track_length(
9848 scrollbar_track_hitbox: Hitbox,
9849 track_length: Pixels,
9850 viewport_size: Pixels,
9851 scroll_range: Pixels,
9852 glyph_space: Pixels,
9853 content_offset: Pixels,
9854 scroll_position: f32,
9855 show_thumb: bool,
9856 axis: ScrollbarAxis,
9857 ) -> Self {
9858 let text_units_per_page = viewport_size / glyph_space;
9859 let visible_range = scroll_position..scroll_position + text_units_per_page;
9860 let total_text_units = scroll_range / glyph_space;
9861
9862 let thumb_percentage = text_units_per_page / total_text_units;
9863 let thumb_size = (track_length * thumb_percentage)
9864 .max(ScrollbarLayout::MIN_THUMB_SIZE)
9865 .min(track_length);
9866
9867 let text_unit_divisor = (total_text_units - text_units_per_page).max(0.);
9868
9869 let content_larger_than_viewport = text_unit_divisor > 0.;
9870
9871 let text_unit_size = if content_larger_than_viewport {
9872 (track_length - thumb_size) / text_unit_divisor
9873 } else {
9874 glyph_space
9875 };
9876
9877 let thumb_bounds = (show_thumb && content_larger_than_viewport).then(|| {
9878 Self::thumb_bounds(
9879 &scrollbar_track_hitbox,
9880 content_offset,
9881 visible_range.start,
9882 text_unit_size,
9883 thumb_size,
9884 axis,
9885 )
9886 });
9887
9888 ScrollbarLayout {
9889 hitbox: scrollbar_track_hitbox,
9890 visible_range,
9891 text_unit_size,
9892 thumb_bounds,
9893 thumb_state: Default::default(),
9894 }
9895 }
9896
9897 fn with_thumb_state(self, thumb_state: Option<ScrollbarThumbState>) -> Self {
9898 if let Some(thumb_state) = thumb_state {
9899 Self {
9900 thumb_state,
9901 ..self
9902 }
9903 } else {
9904 self
9905 }
9906 }
9907
9908 fn thumb_bounds(
9909 scrollbar_track: &Hitbox,
9910 content_offset: Pixels,
9911 visible_range_start: f32,
9912 text_unit_size: Pixels,
9913 thumb_size: Pixels,
9914 axis: ScrollbarAxis,
9915 ) -> Bounds<Pixels> {
9916 let thumb_origin = scrollbar_track.origin.apply_along(axis, |origin| {
9917 origin + content_offset + visible_range_start * text_unit_size
9918 });
9919 Bounds::new(
9920 thumb_origin,
9921 scrollbar_track.size.apply_along(axis, |_| thumb_size),
9922 )
9923 }
9924
9925 fn thumb_hovered(&self, position: &gpui::Point<Pixels>) -> bool {
9926 self.thumb_bounds
9927 .is_some_and(|bounds| bounds.contains(position))
9928 }
9929
9930 fn marker_quads_for_ranges(
9931 &self,
9932 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
9933 column: Option<usize>,
9934 ) -> Vec<PaintQuad> {
9935 struct MinMax {
9936 min: Pixels,
9937 max: Pixels,
9938 }
9939 let (x_range, height_limit) = if let Some(column) = column {
9940 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
9941 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
9942 let end = start + column_width;
9943 (
9944 Range { start, end },
9945 MinMax {
9946 min: Self::MIN_MARKER_HEIGHT,
9947 max: px(f32::MAX),
9948 },
9949 )
9950 } else {
9951 (
9952 Range {
9953 start: Self::BORDER_WIDTH,
9954 end: self.hitbox.size.width,
9955 },
9956 MinMax {
9957 min: Self::LINE_MARKER_HEIGHT,
9958 max: Self::LINE_MARKER_HEIGHT,
9959 },
9960 )
9961 };
9962
9963 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
9964 let mut pixel_ranges = row_ranges
9965 .into_iter()
9966 .map(|range| {
9967 let start_y = row_to_y(range.start);
9968 let end_y = row_to_y(range.end)
9969 + self
9970 .text_unit_size
9971 .max(height_limit.min)
9972 .min(height_limit.max);
9973 ColoredRange {
9974 start: start_y,
9975 end: end_y,
9976 color: range.color,
9977 }
9978 })
9979 .peekable();
9980
9981 let mut quads = Vec::new();
9982 while let Some(mut pixel_range) = pixel_ranges.next() {
9983 while let Some(next_pixel_range) = pixel_ranges.peek() {
9984 if pixel_range.end >= next_pixel_range.start - px(1.0)
9985 && pixel_range.color == next_pixel_range.color
9986 {
9987 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
9988 pixel_ranges.next();
9989 } else {
9990 break;
9991 }
9992 }
9993
9994 let bounds = Bounds::from_corners(
9995 point(x_range.start, pixel_range.start),
9996 point(x_range.end, pixel_range.end),
9997 );
9998 quads.push(quad(
9999 bounds,
10000 Corners::default(),
10001 pixel_range.color,
10002 Edges::default(),
10003 Hsla::transparent_black(),
10004 BorderStyle::default(),
10005 ));
10006 }
10007
10008 quads
10009 }
10010}
10011
10012struct MinimapLayout {
10013 pub minimap: AnyElement,
10014 pub thumb_layout: ScrollbarLayout,
10015 pub minimap_scroll_top: f32,
10016 pub minimap_line_height: Pixels,
10017 pub thumb_border_style: MinimapThumbBorder,
10018 pub max_scroll_top: f32,
10019}
10020
10021impl MinimapLayout {
10022 /// The minimum width of the minimap in columns. If the minimap is smaller than this, it will be hidden.
10023 const MINIMAP_MIN_WIDTH_COLUMNS: f32 = 20.;
10024 /// The minimap width as a percentage of the editor width.
10025 const MINIMAP_WIDTH_PCT: f32 = 0.15;
10026 /// Calculates the scroll top offset the minimap editor has to have based on the
10027 /// current scroll progress.
10028 fn calculate_minimap_top_offset(
10029 document_lines: f32,
10030 visible_editor_lines: f32,
10031 visible_minimap_lines: f32,
10032 scroll_position: f32,
10033 ) -> f32 {
10034 let non_visible_document_lines = (document_lines - visible_editor_lines).max(0.);
10035 if non_visible_document_lines == 0. {
10036 0.
10037 } else {
10038 let scroll_percentage = (scroll_position / non_visible_document_lines).clamp(0., 1.);
10039 scroll_percentage * (document_lines - visible_minimap_lines).max(0.)
10040 }
10041 }
10042}
10043
10044struct CreaseTrailerLayout {
10045 element: AnyElement,
10046 bounds: Bounds<Pixels>,
10047}
10048
10049pub(crate) struct PositionMap {
10050 pub size: Size<Pixels>,
10051 pub line_height: Pixels,
10052 pub scroll_pixel_position: gpui::Point<Pixels>,
10053 pub scroll_max: gpui::Point<f32>,
10054 pub em_width: Pixels,
10055 pub em_advance: Pixels,
10056 pub visible_row_range: Range<DisplayRow>,
10057 pub line_layouts: Vec<LineWithInvisibles>,
10058 pub snapshot: EditorSnapshot,
10059 pub text_hitbox: Hitbox,
10060 pub gutter_hitbox: Hitbox,
10061 pub inline_blame_bounds: Option<(Bounds<Pixels>, BufferId, BlameEntry)>,
10062 pub display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
10063 pub diff_hunk_control_bounds: Vec<(DisplayRow, Bounds<Pixels>)>,
10064}
10065
10066#[derive(Debug, Copy, Clone)]
10067pub struct PointForPosition {
10068 pub previous_valid: DisplayPoint,
10069 pub next_valid: DisplayPoint,
10070 pub exact_unclipped: DisplayPoint,
10071 pub column_overshoot_after_line_end: u32,
10072}
10073
10074impl PointForPosition {
10075 pub fn as_valid(&self) -> Option<DisplayPoint> {
10076 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
10077 Some(self.previous_valid)
10078 } else {
10079 None
10080 }
10081 }
10082
10083 pub fn intersects_selection(&self, selection: &Selection<DisplayPoint>) -> bool {
10084 let Some(valid_point) = self.as_valid() else {
10085 return false;
10086 };
10087 let range = selection.range();
10088
10089 let candidate_row = valid_point.row();
10090 let candidate_col = valid_point.column();
10091
10092 let start_row = range.start.row();
10093 let start_col = range.start.column();
10094 let end_row = range.end.row();
10095 let end_col = range.end.column();
10096
10097 if candidate_row < start_row || candidate_row > end_row {
10098 false
10099 } else if start_row == end_row {
10100 candidate_col >= start_col && candidate_col < end_col
10101 } else if candidate_row == start_row {
10102 candidate_col >= start_col
10103 } else if candidate_row == end_row {
10104 candidate_col < end_col
10105 } else {
10106 true
10107 }
10108 }
10109}
10110
10111impl PositionMap {
10112 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
10113 let text_bounds = self.text_hitbox.bounds;
10114 let scroll_position = self.snapshot.scroll_position();
10115 let position = position - text_bounds.origin;
10116 let y = position.y.max(px(0.)).min(self.size.height);
10117 let x = position.x + (scroll_position.x * self.em_advance);
10118 let row = ((y / self.line_height) + scroll_position.y) as u32;
10119
10120 let (column, x_overshoot_after_line_end) = if let Some(line) = self
10121 .line_layouts
10122 .get(row as usize - scroll_position.y as usize)
10123 {
10124 if let Some(ix) = line.index_for_x(x) {
10125 (ix as u32, px(0.))
10126 } else {
10127 (line.len as u32, px(0.).max(x - line.width))
10128 }
10129 } else {
10130 (0, x)
10131 };
10132
10133 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
10134 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
10135 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
10136
10137 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
10138 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
10139 PointForPosition {
10140 previous_valid,
10141 next_valid,
10142 exact_unclipped,
10143 column_overshoot_after_line_end,
10144 }
10145 }
10146}
10147
10148struct BlockLayout {
10149 id: BlockId,
10150 x_offset: Pixels,
10151 row: Option<DisplayRow>,
10152 element: AnyElement,
10153 available_space: Size<AvailableSpace>,
10154 style: BlockStyle,
10155 overlaps_gutter: bool,
10156 is_buffer_header: bool,
10157}
10158
10159pub fn layout_line(
10160 row: DisplayRow,
10161 snapshot: &EditorSnapshot,
10162 style: &EditorStyle,
10163 text_width: Pixels,
10164 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
10165 window: &mut Window,
10166 cx: &mut App,
10167) -> LineWithInvisibles {
10168 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
10169 LineWithInvisibles::from_chunks(
10170 chunks,
10171 style,
10172 MAX_LINE_LEN,
10173 1,
10174 &snapshot.mode,
10175 text_width,
10176 is_row_soft_wrapped,
10177 &[],
10178 window,
10179 cx,
10180 )
10181 .pop()
10182 .unwrap()
10183}
10184
10185#[derive(Debug)]
10186pub struct IndentGuideLayout {
10187 origin: gpui::Point<Pixels>,
10188 length: Pixels,
10189 single_indent_width: Pixels,
10190 depth: u32,
10191 active: bool,
10192 settings: IndentGuideSettings,
10193}
10194
10195pub struct CursorLayout {
10196 origin: gpui::Point<Pixels>,
10197 block_width: Pixels,
10198 line_height: Pixels,
10199 color: Hsla,
10200 shape: CursorShape,
10201 block_text: Option<ShapedLine>,
10202 cursor_name: Option<AnyElement>,
10203}
10204
10205#[derive(Debug)]
10206pub struct CursorName {
10207 string: SharedString,
10208 color: Hsla,
10209 is_top_row: bool,
10210}
10211
10212impl CursorLayout {
10213 pub fn new(
10214 origin: gpui::Point<Pixels>,
10215 block_width: Pixels,
10216 line_height: Pixels,
10217 color: Hsla,
10218 shape: CursorShape,
10219 block_text: Option<ShapedLine>,
10220 ) -> CursorLayout {
10221 CursorLayout {
10222 origin,
10223 block_width,
10224 line_height,
10225 color,
10226 shape,
10227 block_text,
10228 cursor_name: None,
10229 }
10230 }
10231
10232 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
10233 Bounds {
10234 origin: self.origin + origin,
10235 size: size(self.block_width, self.line_height),
10236 }
10237 }
10238
10239 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
10240 match self.shape {
10241 CursorShape::Bar => Bounds {
10242 origin: self.origin + origin,
10243 size: size(px(2.0), self.line_height),
10244 },
10245 CursorShape::Block | CursorShape::Hollow => Bounds {
10246 origin: self.origin + origin,
10247 size: size(self.block_width, self.line_height),
10248 },
10249 CursorShape::Underline => Bounds {
10250 origin: self.origin
10251 + origin
10252 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
10253 size: size(self.block_width, px(2.0)),
10254 },
10255 }
10256 }
10257
10258 pub fn layout(
10259 &mut self,
10260 origin: gpui::Point<Pixels>,
10261 cursor_name: Option<CursorName>,
10262 window: &mut Window,
10263 cx: &mut App,
10264 ) {
10265 if let Some(cursor_name) = cursor_name {
10266 let bounds = self.bounds(origin);
10267 let text_size = self.line_height / 1.5;
10268
10269 let name_origin = if cursor_name.is_top_row {
10270 point(bounds.right() - px(1.), bounds.top())
10271 } else {
10272 match self.shape {
10273 CursorShape::Bar => point(
10274 bounds.right() - px(2.),
10275 bounds.top() - text_size / 2. - px(1.),
10276 ),
10277 _ => point(
10278 bounds.right() - px(1.),
10279 bounds.top() - text_size / 2. - px(1.),
10280 ),
10281 }
10282 };
10283 let mut name_element = div()
10284 .bg(self.color)
10285 .text_size(text_size)
10286 .px_0p5()
10287 .line_height(text_size + px(2.))
10288 .text_color(cursor_name.color)
10289 .child(cursor_name.string)
10290 .into_any_element();
10291
10292 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
10293
10294 self.cursor_name = Some(name_element);
10295 }
10296 }
10297
10298 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
10299 let bounds = self.bounds(origin);
10300
10301 //Draw background or border quad
10302 let cursor = if matches!(self.shape, CursorShape::Hollow) {
10303 outline(bounds, self.color, BorderStyle::Solid)
10304 } else {
10305 fill(bounds, self.color)
10306 };
10307
10308 if let Some(name) = &mut self.cursor_name {
10309 name.paint(window, cx);
10310 }
10311
10312 window.paint_quad(cursor);
10313
10314 if let Some(block_text) = &self.block_text {
10315 block_text
10316 .paint(self.origin + origin, self.line_height, window, cx)
10317 .log_err();
10318 }
10319 }
10320
10321 pub fn shape(&self) -> CursorShape {
10322 self.shape
10323 }
10324}
10325
10326#[derive(Debug)]
10327pub struct HighlightedRange {
10328 pub start_y: Pixels,
10329 pub line_height: Pixels,
10330 pub lines: Vec<HighlightedRangeLine>,
10331 pub color: Hsla,
10332 pub corner_radius: Pixels,
10333}
10334
10335#[derive(Debug)]
10336pub struct HighlightedRangeLine {
10337 pub start_x: Pixels,
10338 pub end_x: Pixels,
10339}
10340
10341impl HighlightedRange {
10342 pub fn paint(&self, fill: bool, bounds: Bounds<Pixels>, window: &mut Window) {
10343 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
10344 self.paint_lines(self.start_y, &self.lines[0..1], fill, bounds, window);
10345 self.paint_lines(
10346 self.start_y + self.line_height,
10347 &self.lines[1..],
10348 fill,
10349 bounds,
10350 window,
10351 );
10352 } else {
10353 self.paint_lines(self.start_y, &self.lines, fill, bounds, window);
10354 }
10355 }
10356
10357 fn paint_lines(
10358 &self,
10359 start_y: Pixels,
10360 lines: &[HighlightedRangeLine],
10361 fill: bool,
10362 _bounds: Bounds<Pixels>,
10363 window: &mut Window,
10364 ) {
10365 if lines.is_empty() {
10366 return;
10367 }
10368
10369 let first_line = lines.first().unwrap();
10370 let last_line = lines.last().unwrap();
10371
10372 let first_top_left = point(first_line.start_x, start_y);
10373 let first_top_right = point(first_line.end_x, start_y);
10374
10375 let curve_height = point(Pixels::ZERO, self.corner_radius);
10376 let curve_width = |start_x: Pixels, end_x: Pixels| {
10377 let max = (end_x - start_x) / 2.;
10378 let width = if max < self.corner_radius {
10379 max
10380 } else {
10381 self.corner_radius
10382 };
10383
10384 point(width, Pixels::ZERO)
10385 };
10386
10387 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
10388 let mut builder = if fill {
10389 gpui::PathBuilder::fill()
10390 } else {
10391 gpui::PathBuilder::stroke(px(1.))
10392 };
10393 builder.move_to(first_top_right - top_curve_width);
10394 builder.curve_to(first_top_right + curve_height, first_top_right);
10395
10396 let mut iter = lines.iter().enumerate().peekable();
10397 while let Some((ix, line)) = iter.next() {
10398 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
10399
10400 if let Some((_, next_line)) = iter.peek() {
10401 let next_top_right = point(next_line.end_x, bottom_right.y);
10402
10403 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
10404 Ordering::Equal => {
10405 builder.line_to(bottom_right);
10406 }
10407 Ordering::Less => {
10408 let curve_width = curve_width(next_top_right.x, bottom_right.x);
10409 builder.line_to(bottom_right - curve_height);
10410 if self.corner_radius > Pixels::ZERO {
10411 builder.curve_to(bottom_right - curve_width, bottom_right);
10412 }
10413 builder.line_to(next_top_right + curve_width);
10414 if self.corner_radius > Pixels::ZERO {
10415 builder.curve_to(next_top_right + curve_height, next_top_right);
10416 }
10417 }
10418 Ordering::Greater => {
10419 let curve_width = curve_width(bottom_right.x, next_top_right.x);
10420 builder.line_to(bottom_right - curve_height);
10421 if self.corner_radius > Pixels::ZERO {
10422 builder.curve_to(bottom_right + curve_width, bottom_right);
10423 }
10424 builder.line_to(next_top_right - curve_width);
10425 if self.corner_radius > Pixels::ZERO {
10426 builder.curve_to(next_top_right + curve_height, next_top_right);
10427 }
10428 }
10429 }
10430 } else {
10431 let curve_width = curve_width(line.start_x, line.end_x);
10432 builder.line_to(bottom_right - curve_height);
10433 if self.corner_radius > Pixels::ZERO {
10434 builder.curve_to(bottom_right - curve_width, bottom_right);
10435 }
10436
10437 let bottom_left = point(line.start_x, bottom_right.y);
10438 builder.line_to(bottom_left + curve_width);
10439 if self.corner_radius > Pixels::ZERO {
10440 builder.curve_to(bottom_left - curve_height, bottom_left);
10441 }
10442 }
10443 }
10444
10445 if first_line.start_x > last_line.start_x {
10446 let curve_width = curve_width(last_line.start_x, first_line.start_x);
10447 let second_top_left = point(last_line.start_x, start_y + self.line_height);
10448 builder.line_to(second_top_left + curve_height);
10449 if self.corner_radius > Pixels::ZERO {
10450 builder.curve_to(second_top_left + curve_width, second_top_left);
10451 }
10452 let first_bottom_left = point(first_line.start_x, second_top_left.y);
10453 builder.line_to(first_bottom_left - curve_width);
10454 if self.corner_radius > Pixels::ZERO {
10455 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
10456 }
10457 }
10458
10459 builder.line_to(first_top_left + curve_height);
10460 if self.corner_radius > Pixels::ZERO {
10461 builder.curve_to(first_top_left + top_curve_width, first_top_left);
10462 }
10463 builder.line_to(first_top_right - top_curve_width);
10464
10465 if let Ok(path) = builder.build() {
10466 window.paint_path(path, self.color);
10467 }
10468 }
10469}
10470
10471enum CursorPopoverType {
10472 CodeContextMenu,
10473 EditPrediction,
10474}
10475
10476pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
10477 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
10478}
10479
10480fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
10481 (delta.pow(1.2) / 300.0).into()
10482}
10483
10484pub fn register_action<T: Action>(
10485 editor: &Entity<Editor>,
10486 window: &mut Window,
10487 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
10488) {
10489 let editor = editor.clone();
10490 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
10491 let action = action.downcast_ref().unwrap();
10492 if phase == DispatchPhase::Bubble {
10493 editor.update(cx, |editor, cx| {
10494 listener(editor, action, window, cx);
10495 })
10496 }
10497 })
10498}
10499
10500fn compute_auto_height_layout(
10501 editor: &mut Editor,
10502 min_lines: usize,
10503 max_lines: Option<usize>,
10504 max_line_number_width: Pixels,
10505 known_dimensions: Size<Option<Pixels>>,
10506 available_width: AvailableSpace,
10507 window: &mut Window,
10508 cx: &mut Context<Editor>,
10509) -> Option<Size<Pixels>> {
10510 let width = known_dimensions.width.or({
10511 if let AvailableSpace::Definite(available_width) = available_width {
10512 Some(available_width)
10513 } else {
10514 None
10515 }
10516 })?;
10517 if let Some(height) = known_dimensions.height {
10518 return Some(size(width, height));
10519 }
10520
10521 let style = editor.style.as_ref().unwrap();
10522 let font_id = window.text_system().resolve_font(&style.text.font());
10523 let font_size = style.text.font_size.to_pixels(window.rem_size());
10524 let line_height = style.text.line_height_in_pixels(window.rem_size());
10525 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
10526
10527 let mut snapshot = editor.snapshot(window, cx);
10528 let gutter_dimensions = snapshot
10529 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
10530 .or_else(|| {
10531 editor
10532 .offset_content
10533 .then(|| GutterDimensions::default_with_margin(font_id, font_size, cx))
10534 })
10535 .unwrap_or_default();
10536
10537 editor.gutter_dimensions = gutter_dimensions;
10538 let text_width = width - gutter_dimensions.width;
10539 let overscroll = size(em_width, px(0.));
10540
10541 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
10542 if !matches!(editor.soft_wrap_mode(cx), SoftWrap::None)
10543 && editor.set_wrap_width(Some(editor_width), cx)
10544 {
10545 snapshot = editor.snapshot(window, cx);
10546 }
10547
10548 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
10549
10550 let min_height = line_height * min_lines as f32;
10551 let content_height = scroll_height.max(min_height);
10552
10553 let final_height = if let Some(max_lines) = max_lines {
10554 let max_height = line_height * max_lines as f32;
10555 content_height.min(max_height)
10556 } else {
10557 content_height
10558 };
10559
10560 Some(size(width, final_height))
10561}
10562
10563#[cfg(test)]
10564mod tests {
10565 use super::*;
10566 use crate::{
10567 Editor, MultiBuffer, SelectionEffects,
10568 display_map::{BlockPlacement, BlockProperties},
10569 editor_tests::{init_test, update_test_language_settings},
10570 };
10571 use gpui::{TestAppContext, VisualTestContext};
10572 use language::language_settings;
10573 use log::info;
10574 use std::num::NonZeroU32;
10575 use util::test::sample_text;
10576
10577 #[gpui::test]
10578 async fn test_soft_wrap_editor_width_auto_height_editor(cx: &mut TestAppContext) {
10579 init_test(cx, |_| {});
10580
10581 let window = cx.add_window(|window, cx| {
10582 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
10583 let mut editor = Editor::new(
10584 EditorMode::AutoHeight {
10585 min_lines: 1,
10586 max_lines: None,
10587 },
10588 buffer,
10589 None,
10590 window,
10591 cx,
10592 );
10593 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
10594 editor
10595 });
10596 let cx = &mut VisualTestContext::from_window(*window, cx);
10597 let editor = window.root(cx).unwrap();
10598 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10599
10600 for x in 1..=100 {
10601 let (_, state) = cx.draw(
10602 Default::default(),
10603 size(px(200. + 0.13 * x as f32), px(500.)),
10604 |_, _| EditorElement::new(&editor, style.clone()),
10605 );
10606
10607 assert!(
10608 state.position_map.scroll_max.x == 0.,
10609 "Soft wrapped editor should have no horizontal scrolling!"
10610 );
10611 }
10612 }
10613
10614 #[gpui::test]
10615 async fn test_soft_wrap_editor_width_full_editor(cx: &mut TestAppContext) {
10616 init_test(cx, |_| {});
10617
10618 let window = cx.add_window(|window, cx| {
10619 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
10620 let mut editor = Editor::new(EditorMode::full(), buffer, None, window, cx);
10621 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
10622 editor
10623 });
10624 let cx = &mut VisualTestContext::from_window(*window, cx);
10625 let editor = window.root(cx).unwrap();
10626 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10627
10628 for x in 1..=100 {
10629 let (_, state) = cx.draw(
10630 Default::default(),
10631 size(px(200. + 0.13 * x as f32), px(500.)),
10632 |_, _| EditorElement::new(&editor, style.clone()),
10633 );
10634
10635 assert!(
10636 state.position_map.scroll_max.x == 0.,
10637 "Soft wrapped editor should have no horizontal scrolling!"
10638 );
10639 }
10640 }
10641
10642 #[gpui::test]
10643 fn test_shape_line_numbers(cx: &mut TestAppContext) {
10644 init_test(cx, |_| {});
10645 let window = cx.add_window(|window, cx| {
10646 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
10647 Editor::new(EditorMode::full(), buffer, None, window, cx)
10648 });
10649
10650 let editor = window.root(cx).unwrap();
10651 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
10652 let line_height = window
10653 .update(cx, |_, window, _| {
10654 style.text.line_height_in_pixels(window.rem_size())
10655 })
10656 .unwrap();
10657 let element = EditorElement::new(&editor, style);
10658 let snapshot = window
10659 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
10660 .unwrap();
10661
10662 let layouts = cx
10663 .update_window(*window, |_, window, cx| {
10664 element.layout_line_numbers(
10665 None,
10666 GutterDimensions {
10667 left_padding: Pixels::ZERO,
10668 right_padding: Pixels::ZERO,
10669 width: px(30.0),
10670 margin: Pixels::ZERO,
10671 git_blame_entries_width: None,
10672 },
10673 line_height,
10674 gpui::Point::default(),
10675 DisplayRow(0)..DisplayRow(6),
10676 &(0..6)
10677 .map(|row| RowInfo {
10678 buffer_row: Some(row),
10679 ..Default::default()
10680 })
10681 .collect::<Vec<_>>(),
10682 &BTreeMap::default(),
10683 Some(DisplayPoint::new(DisplayRow(0), 0)),
10684 &snapshot,
10685 window,
10686 cx,
10687 )
10688 })
10689 .unwrap();
10690 assert_eq!(layouts.len(), 6);
10691
10692 let relative_rows = window
10693 .update(cx, |editor, window, cx| {
10694 let snapshot = editor.snapshot(window, cx);
10695 element.calculate_relative_line_numbers(
10696 &snapshot,
10697 &(DisplayRow(0)..DisplayRow(6)),
10698 Some(DisplayRow(3)),
10699 )
10700 })
10701 .unwrap();
10702 assert_eq!(relative_rows[&DisplayRow(0)], 3);
10703 assert_eq!(relative_rows[&DisplayRow(1)], 2);
10704 assert_eq!(relative_rows[&DisplayRow(2)], 1);
10705 // current line has no relative number
10706 assert_eq!(relative_rows[&DisplayRow(4)], 1);
10707 assert_eq!(relative_rows[&DisplayRow(5)], 2);
10708
10709 // works if cursor is before screen
10710 let relative_rows = window
10711 .update(cx, |editor, window, cx| {
10712 let snapshot = editor.snapshot(window, cx);
10713 element.calculate_relative_line_numbers(
10714 &snapshot,
10715 &(DisplayRow(3)..DisplayRow(6)),
10716 Some(DisplayRow(1)),
10717 )
10718 })
10719 .unwrap();
10720 assert_eq!(relative_rows.len(), 3);
10721 assert_eq!(relative_rows[&DisplayRow(3)], 2);
10722 assert_eq!(relative_rows[&DisplayRow(4)], 3);
10723 assert_eq!(relative_rows[&DisplayRow(5)], 4);
10724
10725 // works if cursor is after screen
10726 let relative_rows = window
10727 .update(cx, |editor, window, cx| {
10728 let snapshot = editor.snapshot(window, cx);
10729 element.calculate_relative_line_numbers(
10730 &snapshot,
10731 &(DisplayRow(0)..DisplayRow(3)),
10732 Some(DisplayRow(6)),
10733 )
10734 })
10735 .unwrap();
10736 assert_eq!(relative_rows.len(), 3);
10737 assert_eq!(relative_rows[&DisplayRow(0)], 5);
10738 assert_eq!(relative_rows[&DisplayRow(1)], 4);
10739 assert_eq!(relative_rows[&DisplayRow(2)], 3);
10740 }
10741
10742 #[gpui::test]
10743 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
10744 init_test(cx, |_| {});
10745
10746 let window = cx.add_window(|window, cx| {
10747 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
10748 Editor::new(EditorMode::full(), buffer, None, window, cx)
10749 });
10750 let cx = &mut VisualTestContext::from_window(*window, cx);
10751 let editor = window.root(cx).unwrap();
10752 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10753
10754 window
10755 .update(cx, |editor, window, cx| {
10756 editor.cursor_shape = CursorShape::Block;
10757 editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
10758 s.select_ranges([
10759 Point::new(0, 0)..Point::new(1, 0),
10760 Point::new(3, 2)..Point::new(3, 3),
10761 Point::new(5, 6)..Point::new(6, 0),
10762 ]);
10763 });
10764 })
10765 .unwrap();
10766
10767 let (_, state) = cx.draw(
10768 point(px(500.), px(500.)),
10769 size(px(500.), px(500.)),
10770 |_, _| EditorElement::new(&editor, style),
10771 );
10772
10773 assert_eq!(state.selections.len(), 1);
10774 let local_selections = &state.selections[0].1;
10775 assert_eq!(local_selections.len(), 3);
10776 // moves cursor back one line
10777 assert_eq!(
10778 local_selections[0].head,
10779 DisplayPoint::new(DisplayRow(0), 6)
10780 );
10781 assert_eq!(
10782 local_selections[0].range,
10783 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
10784 );
10785
10786 // moves cursor back one column
10787 assert_eq!(
10788 local_selections[1].range,
10789 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
10790 );
10791 assert_eq!(
10792 local_selections[1].head,
10793 DisplayPoint::new(DisplayRow(3), 2)
10794 );
10795
10796 // leaves cursor on the max point
10797 assert_eq!(
10798 local_selections[2].range,
10799 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
10800 );
10801 assert_eq!(
10802 local_selections[2].head,
10803 DisplayPoint::new(DisplayRow(6), 0)
10804 );
10805
10806 // active lines does not include 1 (even though the range of the selection does)
10807 assert_eq!(
10808 state.active_rows.keys().cloned().collect::<Vec<_>>(),
10809 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
10810 );
10811 }
10812
10813 #[gpui::test]
10814 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
10815 init_test(cx, |_| {});
10816
10817 let window = cx.add_window(|window, cx| {
10818 let buffer = MultiBuffer::build_simple("", cx);
10819 Editor::new(EditorMode::full(), buffer, None, window, cx)
10820 });
10821 let cx = &mut VisualTestContext::from_window(*window, cx);
10822 let editor = window.root(cx).unwrap();
10823 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10824 window
10825 .update(cx, |editor, window, cx| {
10826 editor.set_placeholder_text("hello", window, cx);
10827 editor.insert_blocks(
10828 [BlockProperties {
10829 style: BlockStyle::Fixed,
10830 placement: BlockPlacement::Above(Anchor::min()),
10831 height: Some(3),
10832 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
10833 priority: 0,
10834 }],
10835 None,
10836 cx,
10837 );
10838
10839 // Blur the editor so that it displays placeholder text.
10840 window.blur();
10841 })
10842 .unwrap();
10843
10844 let (_, state) = cx.draw(
10845 point(px(500.), px(500.)),
10846 size(px(500.), px(500.)),
10847 |_, _| EditorElement::new(&editor, style),
10848 );
10849 assert_eq!(state.position_map.line_layouts.len(), 4);
10850 assert_eq!(state.line_numbers.len(), 1);
10851 assert_eq!(
10852 state
10853 .line_numbers
10854 .get(&MultiBufferRow(0))
10855 .map(|line_number| line_number.shaped_line.text.as_ref()),
10856 Some("1")
10857 );
10858 }
10859
10860 #[gpui::test]
10861 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
10862 const TAB_SIZE: u32 = 4;
10863
10864 let input_text = "\t \t|\t| a b";
10865 let expected_invisibles = vec![
10866 Invisible::Tab {
10867 line_start_offset: 0,
10868 line_end_offset: TAB_SIZE as usize,
10869 },
10870 Invisible::Whitespace {
10871 line_offset: TAB_SIZE as usize,
10872 },
10873 Invisible::Tab {
10874 line_start_offset: TAB_SIZE as usize + 1,
10875 line_end_offset: TAB_SIZE as usize * 2,
10876 },
10877 Invisible::Tab {
10878 line_start_offset: TAB_SIZE as usize * 2 + 1,
10879 line_end_offset: TAB_SIZE as usize * 3,
10880 },
10881 Invisible::Whitespace {
10882 line_offset: TAB_SIZE as usize * 3 + 1,
10883 },
10884 Invisible::Whitespace {
10885 line_offset: TAB_SIZE as usize * 3 + 3,
10886 },
10887 ];
10888 assert_eq!(
10889 expected_invisibles.len(),
10890 input_text
10891 .chars()
10892 .filter(|initial_char| initial_char.is_whitespace())
10893 .count(),
10894 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
10895 );
10896
10897 for show_line_numbers in [true, false] {
10898 init_test(cx, |s| {
10899 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10900 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
10901 });
10902
10903 let actual_invisibles = collect_invisibles_from_new_editor(
10904 cx,
10905 EditorMode::full(),
10906 input_text,
10907 px(500.0),
10908 show_line_numbers,
10909 );
10910
10911 assert_eq!(expected_invisibles, actual_invisibles);
10912 }
10913 }
10914
10915 #[gpui::test]
10916 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
10917 init_test(cx, |s| {
10918 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10919 s.defaults.tab_size = NonZeroU32::new(4);
10920 });
10921
10922 for editor_mode_without_invisibles in [
10923 EditorMode::SingleLine,
10924 EditorMode::AutoHeight {
10925 min_lines: 1,
10926 max_lines: Some(100),
10927 },
10928 ] {
10929 for show_line_numbers in [true, false] {
10930 let invisibles = collect_invisibles_from_new_editor(
10931 cx,
10932 editor_mode_without_invisibles.clone(),
10933 "\t\t\t| | a b",
10934 px(500.0),
10935 show_line_numbers,
10936 );
10937 assert!(
10938 invisibles.is_empty(),
10939 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
10940 );
10941 }
10942 }
10943 }
10944
10945 #[gpui::test]
10946 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
10947 let tab_size = 4;
10948 let input_text = "a\tbcd ".repeat(9);
10949 let repeated_invisibles = [
10950 Invisible::Tab {
10951 line_start_offset: 1,
10952 line_end_offset: tab_size as usize,
10953 },
10954 Invisible::Whitespace {
10955 line_offset: tab_size as usize + 3,
10956 },
10957 Invisible::Whitespace {
10958 line_offset: tab_size as usize + 4,
10959 },
10960 Invisible::Whitespace {
10961 line_offset: tab_size as usize + 5,
10962 },
10963 Invisible::Whitespace {
10964 line_offset: tab_size as usize + 6,
10965 },
10966 Invisible::Whitespace {
10967 line_offset: tab_size as usize + 7,
10968 },
10969 ];
10970 let expected_invisibles = std::iter::once(repeated_invisibles)
10971 .cycle()
10972 .take(9)
10973 .flatten()
10974 .collect::<Vec<_>>();
10975 assert_eq!(
10976 expected_invisibles.len(),
10977 input_text
10978 .chars()
10979 .filter(|initial_char| initial_char.is_whitespace())
10980 .count(),
10981 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
10982 );
10983 info!("Expected invisibles: {expected_invisibles:?}");
10984
10985 init_test(cx, |_| {});
10986
10987 // Put the same string with repeating whitespace pattern into editors of various size,
10988 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
10989 let resize_step = 10.0;
10990 let mut editor_width = 200.0;
10991 while editor_width <= 1000.0 {
10992 for show_line_numbers in [true, false] {
10993 update_test_language_settings(cx, |s| {
10994 s.defaults.tab_size = NonZeroU32::new(tab_size);
10995 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10996 s.defaults.preferred_line_length = Some(editor_width as u32);
10997 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
10998 });
10999
11000 let actual_invisibles = collect_invisibles_from_new_editor(
11001 cx,
11002 EditorMode::full(),
11003 &input_text,
11004 px(editor_width),
11005 show_line_numbers,
11006 );
11007
11008 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
11009 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
11010 let mut i = 0;
11011 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
11012 i = actual_index;
11013 match expected_invisibles.get(i) {
11014 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
11015 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
11016 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
11017 _ => {
11018 panic!(
11019 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
11020 )
11021 }
11022 },
11023 None => {
11024 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
11025 }
11026 }
11027 }
11028 let missing_expected_invisibles = &expected_invisibles[i + 1..];
11029 assert!(
11030 missing_expected_invisibles.is_empty(),
11031 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
11032 );
11033
11034 editor_width += resize_step;
11035 }
11036 }
11037 }
11038
11039 fn collect_invisibles_from_new_editor(
11040 cx: &mut TestAppContext,
11041 editor_mode: EditorMode,
11042 input_text: &str,
11043 editor_width: Pixels,
11044 show_line_numbers: bool,
11045 ) -> Vec<Invisible> {
11046 info!(
11047 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
11048 editor_width.0
11049 );
11050 let window = cx.add_window(|window, cx| {
11051 let buffer = MultiBuffer::build_simple(input_text, cx);
11052 Editor::new(editor_mode, buffer, None, window, cx)
11053 });
11054 let cx = &mut VisualTestContext::from_window(*window, cx);
11055 let editor = window.root(cx).unwrap();
11056
11057 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
11058 window
11059 .update(cx, |editor, _, cx| {
11060 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
11061 editor.set_wrap_width(Some(editor_width), cx);
11062 editor.set_show_line_numbers(show_line_numbers, cx);
11063 })
11064 .unwrap();
11065 let (_, state) = cx.draw(
11066 point(px(500.), px(500.)),
11067 size(px(500.), px(500.)),
11068 |_, _| EditorElement::new(&editor, style),
11069 );
11070 state
11071 .position_map
11072 .line_layouts
11073 .iter()
11074 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
11075 .cloned()
11076 .collect()
11077 }
11078
11079 #[gpui::test]
11080 fn test_merge_overlapping_ranges() {
11081 let base_bg = Hsla::white();
11082 let color1 = Hsla {
11083 h: 0.0,
11084 s: 0.5,
11085 l: 0.5,
11086 a: 0.5,
11087 };
11088 let color2 = Hsla {
11089 h: 120.0,
11090 s: 0.5,
11091 l: 0.5,
11092 a: 0.5,
11093 };
11094
11095 let display_point = |col| DisplayPoint::new(DisplayRow(0), col);
11096 let cols = |v: &Vec<(Range<DisplayPoint>, Hsla)>| -> Vec<(u32, u32)> {
11097 v.iter()
11098 .map(|(r, _)| (r.start.column(), r.end.column()))
11099 .collect()
11100 };
11101
11102 // Test overlapping ranges blend colors
11103 let overlapping = vec![
11104 (display_point(5)..display_point(15), color1),
11105 (display_point(10)..display_point(20), color2),
11106 ];
11107 let result = EditorElement::merge_overlapping_ranges(overlapping, base_bg);
11108 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
11109
11110 // Test middle segment should have blended color
11111 let blended = Hsla::blend(Hsla::blend(base_bg, color1), color2);
11112 assert_eq!(result[1].1, blended);
11113
11114 // Test adjacent same-color ranges merge
11115 let adjacent_same = vec![
11116 (display_point(5)..display_point(10), color1),
11117 (display_point(10)..display_point(15), color1),
11118 ];
11119 let result = EditorElement::merge_overlapping_ranges(adjacent_same, base_bg);
11120 assert_eq!(cols(&result), vec![(5, 15)]);
11121
11122 // Test contained range splits
11123 let contained = vec![
11124 (display_point(5)..display_point(20), color1),
11125 (display_point(10)..display_point(15), color2),
11126 ];
11127 let result = EditorElement::merge_overlapping_ranges(contained, base_bg);
11128 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
11129
11130 // Test multiple overlaps split at every boundary
11131 let color3 = Hsla {
11132 h: 240.0,
11133 s: 0.5,
11134 l: 0.5,
11135 a: 0.5,
11136 };
11137 let complex = vec![
11138 (display_point(5)..display_point(12), color1),
11139 (display_point(8)..display_point(16), color2),
11140 (display_point(10)..display_point(14), color3),
11141 ];
11142 let result = EditorElement::merge_overlapping_ranges(complex, base_bg);
11143 assert_eq!(
11144 cols(&result),
11145 vec![(5, 8), (8, 10), (10, 12), (12, 14), (14, 16)]
11146 );
11147 }
11148
11149 #[gpui::test]
11150 fn test_bg_segments_per_row() {
11151 let base_bg = Hsla::white();
11152
11153 // Case A: selection spans three display rows: row 1 [5, end), full row 2, row 3 [0, 7)
11154 {
11155 let selection_color = Hsla {
11156 h: 200.0,
11157 s: 0.5,
11158 l: 0.5,
11159 a: 0.5,
11160 };
11161 let player_color = PlayerColor {
11162 cursor: selection_color,
11163 background: selection_color,
11164 selection: selection_color,
11165 };
11166
11167 let spanning_selection = SelectionLayout {
11168 head: DisplayPoint::new(DisplayRow(3), 7),
11169 cursor_shape: CursorShape::Bar,
11170 is_newest: true,
11171 is_local: true,
11172 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 7),
11173 active_rows: DisplayRow(1)..DisplayRow(4),
11174 user_name: None,
11175 };
11176
11177 let selections = vec![(player_color, vec![spanning_selection])];
11178 let result = EditorElement::bg_segments_per_row(
11179 DisplayRow(0)..DisplayRow(5),
11180 &selections,
11181 &[],
11182 base_bg,
11183 );
11184
11185 assert_eq!(result.len(), 5);
11186 assert!(result[0].is_empty());
11187 assert_eq!(result[1].len(), 1);
11188 assert_eq!(result[2].len(), 1);
11189 assert_eq!(result[3].len(), 1);
11190 assert!(result[4].is_empty());
11191
11192 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
11193 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
11194 assert_eq!(result[1][0].0.end.column(), u32::MAX);
11195 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
11196 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
11197 assert_eq!(result[2][0].0.end.column(), u32::MAX);
11198 assert_eq!(result[3][0].0.start, DisplayPoint::new(DisplayRow(3), 0));
11199 assert_eq!(result[3][0].0.end, DisplayPoint::new(DisplayRow(3), 7));
11200 }
11201
11202 // Case B: selection ends exactly at the start of row 3, excluding row 3
11203 {
11204 let selection_color = Hsla {
11205 h: 120.0,
11206 s: 0.5,
11207 l: 0.5,
11208 a: 0.5,
11209 };
11210 let player_color = PlayerColor {
11211 cursor: selection_color,
11212 background: selection_color,
11213 selection: selection_color,
11214 };
11215
11216 let selection = SelectionLayout {
11217 head: DisplayPoint::new(DisplayRow(2), 0),
11218 cursor_shape: CursorShape::Bar,
11219 is_newest: true,
11220 is_local: true,
11221 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 0),
11222 active_rows: DisplayRow(1)..DisplayRow(3),
11223 user_name: None,
11224 };
11225
11226 let selections = vec![(player_color, vec![selection])];
11227 let result = EditorElement::bg_segments_per_row(
11228 DisplayRow(0)..DisplayRow(4),
11229 &selections,
11230 &[],
11231 base_bg,
11232 );
11233
11234 assert_eq!(result.len(), 4);
11235 assert!(result[0].is_empty());
11236 assert_eq!(result[1].len(), 1);
11237 assert_eq!(result[2].len(), 1);
11238 assert!(result[3].is_empty());
11239
11240 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
11241 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
11242 assert_eq!(result[1][0].0.end.column(), u32::MAX);
11243 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
11244 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
11245 assert_eq!(result[2][0].0.end.column(), u32::MAX);
11246 }
11247 }
11248
11249 #[cfg(test)]
11250 fn generate_test_run(len: usize, color: Hsla) -> TextRun {
11251 TextRun {
11252 len,
11253 font: gpui::font(".SystemUIFont"),
11254 color,
11255 background_color: None,
11256 underline: None,
11257 strikethrough: None,
11258 }
11259 }
11260
11261 #[gpui::test]
11262 fn test_split_runs_by_bg_segments(cx: &mut gpui::TestAppContext) {
11263 init_test(cx, |_| {});
11264
11265 let dx = |start: u32, end: u32| {
11266 DisplayPoint::new(DisplayRow(0), start)..DisplayPoint::new(DisplayRow(0), end)
11267 };
11268
11269 let text_color = Hsla {
11270 h: 210.0,
11271 s: 0.1,
11272 l: 0.4,
11273 a: 1.0,
11274 };
11275 let bg_1 = Hsla {
11276 h: 30.0,
11277 s: 0.6,
11278 l: 0.8,
11279 a: 1.0,
11280 };
11281 let bg_2 = Hsla {
11282 h: 200.0,
11283 s: 0.6,
11284 l: 0.2,
11285 a: 1.0,
11286 };
11287 let min_contrast = 45.0;
11288 let adjusted_bg1 = ensure_minimum_contrast(text_color, bg_1, min_contrast);
11289 let adjusted_bg2 = ensure_minimum_contrast(text_color, bg_2, min_contrast);
11290
11291 // Case A: single run; disjoint segments inside the run
11292 {
11293 let runs = vec![generate_test_run(20, text_color)];
11294 let segs = vec![(dx(5, 10), bg_1), (dx(12, 16), bg_2)];
11295 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
11296 // Expected slices: [0,5) [5,10) [10,12) [12,16) [16,20)
11297 assert_eq!(
11298 out.iter().map(|r| r.len).collect::<Vec<_>>(),
11299 vec![5, 5, 2, 4, 4]
11300 );
11301 assert_eq!(out[0].color, text_color);
11302 assert_eq!(out[1].color, adjusted_bg1);
11303 assert_eq!(out[2].color, text_color);
11304 assert_eq!(out[3].color, adjusted_bg2);
11305 assert_eq!(out[4].color, text_color);
11306 }
11307
11308 // Case B: multiple runs; segment extends to end of line (u32::MAX)
11309 {
11310 let runs = vec![
11311 generate_test_run(8, text_color),
11312 generate_test_run(7, text_color),
11313 ];
11314 let segs = vec![(dx(6, u32::MAX), bg_1)];
11315 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
11316 // Expected slices across runs: [0,6) [6,8) | [0,7)
11317 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![6, 2, 7]);
11318 assert_eq!(out[0].color, text_color);
11319 assert_eq!(out[1].color, adjusted_bg1);
11320 assert_eq!(out[2].color, adjusted_bg1);
11321 }
11322
11323 // Case C: multi-byte characters
11324 {
11325 // for text: "Hello π δΈη!"
11326 let runs = vec![
11327 generate_test_run(5, text_color), // "Hello"
11328 generate_test_run(6, text_color), // " π "
11329 generate_test_run(6, text_color), // "δΈη"
11330 generate_test_run(1, text_color), // "!"
11331 ];
11332 // selecting "π δΈ"
11333 let segs = vec![(dx(6, 14), bg_1)];
11334 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
11335 // "Hello" | " " | "π " | "δΈ" | "η" | "!"
11336 assert_eq!(
11337 out.iter().map(|r| r.len).collect::<Vec<_>>(),
11338 vec![5, 1, 5, 3, 3, 1]
11339 );
11340 assert_eq!(out[0].color, text_color); // "Hello"
11341 assert_eq!(out[2].color, adjusted_bg1); // "π "
11342 assert_eq!(out[3].color, adjusted_bg1); // "δΈ"
11343 assert_eq!(out[4].color, text_color); // "η"
11344 assert_eq!(out[5].color, text_color); // "!"
11345 }
11346
11347 // Case D: split multiple consecutive text runs with segments
11348 {
11349 let segs = vec![
11350 (dx(2, 4), bg_1), // selecting "cd"
11351 (dx(4, 8), bg_2), // selecting "efgh"
11352 (dx(9, 11), bg_1), // selecting "jk"
11353 (dx(12, 16), bg_2), // selecting "mnop"
11354 (dx(18, 19), bg_1), // selecting "s"
11355 ];
11356
11357 // for text: "abcdef"
11358 let runs = vec![
11359 generate_test_run(2, text_color), // ab
11360 generate_test_run(4, text_color), // cdef
11361 ];
11362 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
11363 // new splits "ab", "cd", "ef"
11364 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![2, 2, 2]);
11365 assert_eq!(out[0].color, text_color);
11366 assert_eq!(out[1].color, adjusted_bg1);
11367 assert_eq!(out[2].color, adjusted_bg2);
11368
11369 // for text: "ghijklmn"
11370 let runs = vec![
11371 generate_test_run(3, text_color), // ghi
11372 generate_test_run(2, text_color), // jk
11373 generate_test_run(3, text_color), // lmn
11374 ];
11375 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 6); // 2 + 4 from first run
11376 // new splits "gh", "i", "jk", "l", "mn"
11377 assert_eq!(
11378 out.iter().map(|r| r.len).collect::<Vec<_>>(),
11379 vec![2, 1, 2, 1, 2]
11380 );
11381 assert_eq!(out[0].color, adjusted_bg2);
11382 assert_eq!(out[1].color, text_color);
11383 assert_eq!(out[2].color, adjusted_bg1);
11384 assert_eq!(out[3].color, text_color);
11385 assert_eq!(out[4].color, adjusted_bg2);
11386
11387 // for text: "opqrs"
11388 let runs = vec![
11389 generate_test_run(1, text_color), // o
11390 generate_test_run(4, text_color), // pqrs
11391 ];
11392 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 14); // 6 + 3 + 2 + 3 from first two runs
11393 // new splits "o", "p", "qr", "s"
11394 assert_eq!(
11395 out.iter().map(|r| r.len).collect::<Vec<_>>(),
11396 vec![1, 1, 2, 1]
11397 );
11398 assert_eq!(out[0].color, adjusted_bg2);
11399 assert_eq!(out[1].color, adjusted_bg2);
11400 assert_eq!(out[2].color, text_color);
11401 assert_eq!(out[3].color, adjusted_bg1);
11402 }
11403 }
11404}