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::language_settings::{IndentGuideSettings, 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.selections.disjoint.iter().for_each(|selection| {
1552 add_cursor(selection.head(), color);
1553 });
1554 if let Some(ref selection) = editor.selections.pending_anchor() {
1555 add_cursor(selection.head(), color);
1556 }
1557 }
1558 cursors
1559 }
1560
1561 fn layout_visible_cursors(
1562 &self,
1563 snapshot: &EditorSnapshot,
1564 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1565 row_block_types: &HashMap<DisplayRow, bool>,
1566 visible_display_row_range: Range<DisplayRow>,
1567 line_layouts: &[LineWithInvisibles],
1568 text_hitbox: &Hitbox,
1569 content_origin: gpui::Point<Pixels>,
1570 scroll_position: gpui::Point<f32>,
1571 scroll_pixel_position: gpui::Point<Pixels>,
1572 line_height: Pixels,
1573 em_width: Pixels,
1574 em_advance: Pixels,
1575 autoscroll_containing_element: bool,
1576 window: &mut Window,
1577 cx: &mut App,
1578 ) -> Vec<CursorLayout> {
1579 let mut autoscroll_bounds = None;
1580 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1581 let mut cursors = Vec::new();
1582
1583 let show_local_cursors = editor.show_local_cursors(window, cx);
1584
1585 for (player_color, selections) in selections {
1586 for selection in selections {
1587 let cursor_position = selection.head;
1588
1589 let in_range = visible_display_row_range.contains(&cursor_position.row());
1590 if (selection.is_local && !show_local_cursors)
1591 || !in_range
1592 || row_block_types.get(&cursor_position.row()) == Some(&true)
1593 {
1594 continue;
1595 }
1596
1597 let cursor_row_layout = &line_layouts
1598 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1599 let cursor_column = cursor_position.column() as usize;
1600
1601 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1602 let mut block_width =
1603 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1604 if block_width == Pixels::ZERO {
1605 block_width = em_advance;
1606 }
1607 let block_text = if let CursorShape::Block = selection.cursor_shape {
1608 snapshot
1609 .grapheme_at(cursor_position)
1610 .or_else(|| {
1611 if snapshot.is_empty() {
1612 snapshot.placeholder_text().and_then(|s| {
1613 s.graphemes(true).next().map(|s| s.to_string().into())
1614 })
1615 } else {
1616 None
1617 }
1618 })
1619 .map(|text| {
1620 let len = text.len();
1621
1622 let font = cursor_row_layout
1623 .font_id_for_index(cursor_column)
1624 .and_then(|cursor_font_id| {
1625 window.text_system().get_font_for_id(cursor_font_id)
1626 })
1627 .unwrap_or(self.style.text.font());
1628
1629 // Invert the text color for the block cursor. Ensure that the text
1630 // color is opaque enough to be visible against the background color.
1631 //
1632 // 0.75 is an arbitrary threshold to determine if the background color is
1633 // opaque enough to use as a text color.
1634 //
1635 // TODO: In the future we should ensure themes have a `text_inverse` color.
1636 let color = if cx.theme().colors().editor_background.a < 0.75 {
1637 match cx.theme().appearance {
1638 Appearance::Dark => Hsla::black(),
1639 Appearance::Light => Hsla::white(),
1640 }
1641 } else {
1642 cx.theme().colors().editor_background
1643 };
1644
1645 window.text_system().shape_line(
1646 text,
1647 cursor_row_layout.font_size,
1648 &[TextRun {
1649 len,
1650 font,
1651 color,
1652 background_color: None,
1653 strikethrough: None,
1654 underline: None,
1655 }],
1656 None,
1657 )
1658 })
1659 } else {
1660 None
1661 };
1662
1663 let x = cursor_character_x - scroll_pixel_position.x;
1664 let y = (cursor_position.row().as_f32()
1665 - scroll_pixel_position.y / line_height)
1666 * line_height;
1667 if selection.is_newest {
1668 editor.pixel_position_of_newest_cursor = Some(point(
1669 text_hitbox.origin.x + x + block_width / 2.,
1670 text_hitbox.origin.y + y + line_height / 2.,
1671 ));
1672
1673 if autoscroll_containing_element {
1674 let top = text_hitbox.origin.y
1675 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1676 * line_height;
1677 let left = text_hitbox.origin.x
1678 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1679 .max(0.)
1680 * em_width;
1681
1682 let bottom = text_hitbox.origin.y
1683 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1684 * line_height;
1685 let right = text_hitbox.origin.x
1686 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1687 * em_width;
1688
1689 autoscroll_bounds =
1690 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1691 }
1692 }
1693
1694 let mut cursor = CursorLayout {
1695 color: player_color.cursor,
1696 block_width,
1697 origin: point(x, y),
1698 line_height,
1699 shape: selection.cursor_shape,
1700 block_text,
1701 cursor_name: None,
1702 };
1703 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1704 string: name,
1705 color: self.style.background,
1706 is_top_row: cursor_position.row().0 == 0,
1707 });
1708 cursor.layout(content_origin, cursor_name, window, cx);
1709 cursors.push(cursor);
1710 }
1711 }
1712
1713 cursors
1714 });
1715
1716 if let Some(bounds) = autoscroll_bounds {
1717 window.request_autoscroll(bounds);
1718 }
1719
1720 cursor_layouts
1721 }
1722
1723 fn layout_scrollbars(
1724 &self,
1725 snapshot: &EditorSnapshot,
1726 scrollbar_layout_information: &ScrollbarLayoutInformation,
1727 content_offset: gpui::Point<Pixels>,
1728 scroll_position: gpui::Point<f32>,
1729 non_visible_cursors: bool,
1730 right_margin: Pixels,
1731 editor_width: Pixels,
1732 window: &mut Window,
1733 cx: &mut App,
1734 ) -> Option<EditorScrollbars> {
1735 let show_scrollbars = self.editor.read(cx).show_scrollbars;
1736 if (!show_scrollbars.horizontal && !show_scrollbars.vertical)
1737 || self.style.scrollbar_width.is_zero()
1738 {
1739 return None;
1740 }
1741
1742 // If a drag took place after we started dragging the scrollbar,
1743 // cancel the scrollbar drag.
1744 if cx.has_active_drag() {
1745 self.editor.update(cx, |editor, cx| {
1746 editor.scroll_manager.reset_scrollbar_state(cx)
1747 });
1748 }
1749
1750 let editor_settings = EditorSettings::get_global(cx);
1751 let scrollbar_settings = editor_settings.scrollbar;
1752 let show_scrollbars = match scrollbar_settings.show {
1753 ShowScrollbar::Auto => {
1754 let editor = self.editor.read(cx);
1755 let is_singleton = editor.is_singleton(cx);
1756 // Git
1757 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1758 ||
1759 // Buffer Search Results
1760 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1761 ||
1762 // Selected Text Occurrences
1763 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1764 ||
1765 // Selected Symbol Occurrences
1766 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1767 ||
1768 // Diagnostics
1769 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1770 ||
1771 // Cursors out of sight
1772 non_visible_cursors
1773 ||
1774 // Scrollmanager
1775 editor.scroll_manager.scrollbars_visible()
1776 }
1777 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1778 ShowScrollbar::Always => true,
1779 ShowScrollbar::Never => return None,
1780 };
1781
1782 // The horizontal scrollbar is usually slightly offset to align nicely with
1783 // indent guides. However, this offset is not needed if indent guides are
1784 // disabled for the current editor.
1785 let content_offset = self
1786 .editor
1787 .read(cx)
1788 .show_indent_guides
1789 .is_none_or(|should_show| should_show)
1790 .then_some(content_offset)
1791 .unwrap_or_default();
1792
1793 Some(EditorScrollbars::from_scrollbar_axes(
1794 ScrollbarAxes {
1795 horizontal: scrollbar_settings.axes.horizontal
1796 && self.editor.read(cx).show_scrollbars.horizontal,
1797 vertical: scrollbar_settings.axes.vertical
1798 && self.editor.read(cx).show_scrollbars.vertical,
1799 },
1800 scrollbar_layout_information,
1801 content_offset,
1802 scroll_position,
1803 self.style.scrollbar_width,
1804 right_margin,
1805 editor_width,
1806 show_scrollbars,
1807 self.editor.read(cx).scroll_manager.active_scrollbar_state(),
1808 window,
1809 ))
1810 }
1811
1812 fn layout_minimap(
1813 &self,
1814 snapshot: &EditorSnapshot,
1815 minimap_width: Pixels,
1816 scroll_position: gpui::Point<f32>,
1817 scrollbar_layout_information: &ScrollbarLayoutInformation,
1818 scrollbar_layout: Option<&EditorScrollbars>,
1819 window: &mut Window,
1820 cx: &mut App,
1821 ) -> Option<MinimapLayout> {
1822 let minimap_editor = self.editor.read(cx).minimap().cloned()?;
1823
1824 let minimap_settings = EditorSettings::get_global(cx).minimap;
1825
1826 if minimap_settings.on_active_editor() {
1827 let active_editor = self.editor.read(cx).workspace().and_then(|ws| {
1828 ws.read(cx)
1829 .active_pane()
1830 .read(cx)
1831 .active_item()
1832 .and_then(|i| i.act_as::<Editor>(cx))
1833 });
1834 if active_editor.is_some_and(|e| e != self.editor) {
1835 return None;
1836 }
1837 }
1838
1839 if !snapshot.mode.is_full()
1840 || minimap_width.is_zero()
1841 || matches!(
1842 minimap_settings.show,
1843 ShowMinimap::Auto if scrollbar_layout.is_none_or(|layout| !layout.visible)
1844 )
1845 {
1846 return None;
1847 }
1848
1849 const MINIMAP_AXIS: ScrollbarAxis = ScrollbarAxis::Vertical;
1850
1851 let ScrollbarLayoutInformation {
1852 editor_bounds,
1853 scroll_range,
1854 glyph_grid_cell,
1855 } = scrollbar_layout_information;
1856
1857 let line_height = glyph_grid_cell.height;
1858 let scroll_position = scroll_position.along(MINIMAP_AXIS);
1859
1860 let top_right_anchor = scrollbar_layout
1861 .and_then(|layout| layout.vertical.as_ref())
1862 .map(|vertical_scrollbar| vertical_scrollbar.hitbox.origin)
1863 .unwrap_or_else(|| editor_bounds.top_right());
1864
1865 let thumb_state = self
1866 .editor
1867 .read_with(cx, |editor, _| editor.scroll_manager.minimap_thumb_state());
1868
1869 let show_thumb = match minimap_settings.thumb {
1870 MinimapThumb::Always => true,
1871 MinimapThumb::Hover => thumb_state.is_some(),
1872 };
1873
1874 let minimap_bounds = Bounds::from_corner_and_size(
1875 Corner::TopRight,
1876 top_right_anchor,
1877 size(minimap_width, editor_bounds.size.height),
1878 );
1879 let minimap_line_height = self.get_minimap_line_height(
1880 minimap_editor
1881 .read(cx)
1882 .text_style_refinement
1883 .as_ref()
1884 .and_then(|refinement| refinement.font_size)
1885 .unwrap_or(MINIMAP_FONT_SIZE),
1886 window,
1887 cx,
1888 );
1889 let minimap_height = minimap_bounds.size.height;
1890
1891 let visible_editor_lines = editor_bounds.size.height / line_height;
1892 let total_editor_lines = scroll_range.height / line_height;
1893 let minimap_lines = minimap_height / minimap_line_height;
1894
1895 let minimap_scroll_top = MinimapLayout::calculate_minimap_top_offset(
1896 total_editor_lines,
1897 visible_editor_lines,
1898 minimap_lines,
1899 scroll_position,
1900 );
1901
1902 let layout = ScrollbarLayout::for_minimap(
1903 window.insert_hitbox(minimap_bounds, HitboxBehavior::Normal),
1904 visible_editor_lines,
1905 total_editor_lines,
1906 minimap_line_height,
1907 scroll_position,
1908 minimap_scroll_top,
1909 show_thumb,
1910 )
1911 .with_thumb_state(thumb_state);
1912
1913 minimap_editor.update(cx, |editor, cx| {
1914 editor.set_scroll_position(point(0., minimap_scroll_top), window, cx)
1915 });
1916
1917 // Required for the drop shadow to be visible
1918 const PADDING_OFFSET: Pixels = px(4.);
1919
1920 let mut minimap = div()
1921 .size_full()
1922 .shadow_xs()
1923 .px(PADDING_OFFSET)
1924 .child(minimap_editor)
1925 .into_any_element();
1926
1927 let extended_bounds = minimap_bounds.extend(Edges {
1928 right: PADDING_OFFSET,
1929 left: PADDING_OFFSET,
1930 ..Default::default()
1931 });
1932 minimap.layout_as_root(extended_bounds.size.into(), window, cx);
1933 window.with_absolute_element_offset(extended_bounds.origin, |window| {
1934 minimap.prepaint(window, cx)
1935 });
1936
1937 Some(MinimapLayout {
1938 minimap,
1939 thumb_layout: layout,
1940 thumb_border_style: minimap_settings.thumb_border,
1941 minimap_line_height,
1942 minimap_scroll_top,
1943 max_scroll_top: total_editor_lines,
1944 })
1945 }
1946
1947 fn get_minimap_line_height(
1948 &self,
1949 font_size: AbsoluteLength,
1950 window: &mut Window,
1951 cx: &mut App,
1952 ) -> Pixels {
1953 let rem_size = self.rem_size(cx).unwrap_or(window.rem_size());
1954 let mut text_style = self.style.text.clone();
1955 text_style.font_size = font_size;
1956 text_style.line_height_in_pixels(rem_size)
1957 }
1958
1959 fn get_minimap_width(
1960 &self,
1961 minimap_settings: &Minimap,
1962 scrollbars_shown: bool,
1963 text_width: Pixels,
1964 em_width: Pixels,
1965 font_size: Pixels,
1966 rem_size: Pixels,
1967 cx: &App,
1968 ) -> Option<Pixels> {
1969 if minimap_settings.show == ShowMinimap::Auto && !scrollbars_shown {
1970 return None;
1971 }
1972
1973 let minimap_font_size = self.editor.read_with(cx, |editor, cx| {
1974 editor.minimap().map(|minimap_editor| {
1975 minimap_editor
1976 .read(cx)
1977 .text_style_refinement
1978 .as_ref()
1979 .and_then(|refinement| refinement.font_size)
1980 .unwrap_or(MINIMAP_FONT_SIZE)
1981 })
1982 })?;
1983
1984 let minimap_em_width = em_width * (minimap_font_size.to_pixels(rem_size) / font_size);
1985
1986 let minimap_width = (text_width * MinimapLayout::MINIMAP_WIDTH_PCT)
1987 .min(minimap_em_width * minimap_settings.max_width_columns.get() as f32);
1988
1989 (minimap_width >= minimap_em_width * MinimapLayout::MINIMAP_MIN_WIDTH_COLUMNS)
1990 .then_some(minimap_width)
1991 }
1992
1993 fn prepaint_crease_toggles(
1994 &self,
1995 crease_toggles: &mut [Option<AnyElement>],
1996 line_height: Pixels,
1997 gutter_dimensions: &GutterDimensions,
1998 gutter_settings: crate::editor_settings::Gutter,
1999 scroll_pixel_position: gpui::Point<Pixels>,
2000 gutter_hitbox: &Hitbox,
2001 window: &mut Window,
2002 cx: &mut App,
2003 ) {
2004 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
2005 if let Some(crease_toggle) = crease_toggle {
2006 debug_assert!(gutter_settings.folds);
2007 let available_space = size(
2008 AvailableSpace::MinContent,
2009 AvailableSpace::Definite(line_height * 0.55),
2010 );
2011 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
2012
2013 let position = point(
2014 gutter_dimensions.width - gutter_dimensions.right_padding,
2015 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
2016 );
2017 let centering_offset = point(
2018 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
2019 (line_height - crease_toggle_size.height) / 2.,
2020 );
2021 let origin = gutter_hitbox.origin + position + centering_offset;
2022 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
2023 }
2024 }
2025 }
2026
2027 fn prepaint_expand_toggles(
2028 &self,
2029 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
2030 window: &mut Window,
2031 cx: &mut App,
2032 ) {
2033 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
2034 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
2035 expand_toggle.layout_as_root(available_space, window, cx);
2036 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
2037 }
2038 }
2039
2040 fn prepaint_crease_trailers(
2041 &self,
2042 trailers: Vec<Option<AnyElement>>,
2043 lines: &[LineWithInvisibles],
2044 line_height: Pixels,
2045 content_origin: gpui::Point<Pixels>,
2046 scroll_pixel_position: gpui::Point<Pixels>,
2047 em_width: Pixels,
2048 window: &mut Window,
2049 cx: &mut App,
2050 ) -> Vec<Option<CreaseTrailerLayout>> {
2051 trailers
2052 .into_iter()
2053 .enumerate()
2054 .map(|(ix, element)| {
2055 let mut element = element?;
2056 let available_space = size(
2057 AvailableSpace::MinContent,
2058 AvailableSpace::Definite(line_height),
2059 );
2060 let size = element.layout_as_root(available_space, window, cx);
2061
2062 let line = &lines[ix];
2063 let padding = if line.width == Pixels::ZERO {
2064 Pixels::ZERO
2065 } else {
2066 4. * em_width
2067 };
2068 let position = point(
2069 scroll_pixel_position.x + line.width + padding,
2070 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
2071 );
2072 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
2073 let origin = content_origin + position + centering_offset;
2074 element.prepaint_as_root(origin, available_space, window, cx);
2075 Some(CreaseTrailerLayout {
2076 element,
2077 bounds: Bounds::new(origin, size),
2078 })
2079 })
2080 .collect()
2081 }
2082
2083 // Folds contained in a hunk are ignored apart from shrinking visual size
2084 // If a fold contains any hunks then that fold line is marked as modified
2085 fn layout_gutter_diff_hunks(
2086 &self,
2087 line_height: Pixels,
2088 gutter_hitbox: &Hitbox,
2089 display_rows: Range<DisplayRow>,
2090 snapshot: &EditorSnapshot,
2091 window: &mut Window,
2092 cx: &mut App,
2093 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
2094 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
2095 let mut display_hunks = snapshot
2096 .display_diff_hunks_for_rows(display_rows, folded_buffers)
2097 .map(|hunk| (hunk, None))
2098 .collect::<Vec<_>>();
2099 let git_gutter_setting = ProjectSettings::get_global(cx).git.git_gutter;
2100 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
2101 for (hunk, hitbox) in &mut display_hunks {
2102 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
2103 let hunk_bounds =
2104 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
2105 *hitbox = Some(window.insert_hitbox(hunk_bounds, HitboxBehavior::BlockMouse));
2106 }
2107 }
2108 }
2109
2110 display_hunks
2111 }
2112
2113 fn layout_inline_diagnostics(
2114 &self,
2115 line_layouts: &[LineWithInvisibles],
2116 crease_trailers: &[Option<CreaseTrailerLayout>],
2117 row_block_types: &HashMap<DisplayRow, bool>,
2118 content_origin: gpui::Point<Pixels>,
2119 scroll_pixel_position: gpui::Point<Pixels>,
2120 edit_prediction_popover_origin: Option<gpui::Point<Pixels>>,
2121 start_row: DisplayRow,
2122 end_row: DisplayRow,
2123 line_height: Pixels,
2124 em_width: Pixels,
2125 style: &EditorStyle,
2126 window: &mut Window,
2127 cx: &mut App,
2128 ) -> HashMap<DisplayRow, AnyElement> {
2129 let max_severity = match self
2130 .editor
2131 .read(cx)
2132 .inline_diagnostics_enabled()
2133 .then(|| {
2134 ProjectSettings::get_global(cx)
2135 .diagnostics
2136 .inline
2137 .max_severity
2138 .unwrap_or_else(|| self.editor.read(cx).diagnostics_max_severity)
2139 .into_lsp()
2140 })
2141 .flatten()
2142 {
2143 Some(max_severity) => max_severity,
2144 None => return HashMap::default(),
2145 };
2146
2147 let active_diagnostics_group =
2148 if let ActiveDiagnostic::Group(group) = &self.editor.read(cx).active_diagnostics {
2149 Some(group.group_id)
2150 } else {
2151 None
2152 };
2153
2154 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
2155 let snapshot = editor.snapshot(window, cx);
2156 editor
2157 .inline_diagnostics
2158 .iter()
2159 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
2160 .filter(|(_, diagnostic)| match active_diagnostics_group {
2161 Some(active_diagnostics_group) => {
2162 // Active diagnostics are all shown in the editor already, no need to display them inline
2163 diagnostic.group_id != active_diagnostics_group
2164 }
2165 None => true,
2166 })
2167 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
2168 .skip_while(|(point, _)| point.row() < start_row)
2169 .take_while(|(point, _)| point.row() < end_row)
2170 .filter(|(point, _)| !row_block_types.contains_key(&point.row()))
2171 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
2172 acc.entry(point.row())
2173 .or_insert_with(Vec::new)
2174 .push(diagnostic);
2175 acc
2176 })
2177 });
2178
2179 if diagnostics_by_rows.is_empty() {
2180 return HashMap::default();
2181 }
2182
2183 let severity_to_color = |sev: &lsp::DiagnosticSeverity| match sev {
2184 &lsp::DiagnosticSeverity::ERROR => Color::Error,
2185 &lsp::DiagnosticSeverity::WARNING => Color::Warning,
2186 &lsp::DiagnosticSeverity::INFORMATION => Color::Info,
2187 &lsp::DiagnosticSeverity::HINT => Color::Hint,
2188 _ => Color::Error,
2189 };
2190
2191 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
2192 let min_x = self.column_pixels(
2193 ProjectSettings::get_global(cx)
2194 .diagnostics
2195 .inline
2196 .min_column as usize,
2197 window,
2198 );
2199
2200 let mut elements = HashMap::default();
2201 for (row, mut diagnostics) in diagnostics_by_rows {
2202 diagnostics.sort_by_key(|diagnostic| {
2203 (
2204 diagnostic.severity,
2205 std::cmp::Reverse(diagnostic.is_primary),
2206 diagnostic.start.row,
2207 diagnostic.start.column,
2208 )
2209 });
2210
2211 let Some(diagnostic_to_render) = diagnostics
2212 .iter()
2213 .find(|diagnostic| diagnostic.is_primary)
2214 .or_else(|| diagnostics.first())
2215 else {
2216 continue;
2217 };
2218
2219 let pos_y = content_origin.y
2220 + line_height * (row.0 as f32 - scroll_pixel_position.y / line_height);
2221
2222 let window_ix = row.0.saturating_sub(start_row.0) as usize;
2223 let pos_x = {
2224 let crease_trailer_layout = &crease_trailers[window_ix];
2225 let line_layout = &line_layouts[window_ix];
2226
2227 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
2228 crease_trailer.bounds.right()
2229 } else {
2230 content_origin.x - scroll_pixel_position.x + line_layout.width
2231 };
2232
2233 let padded_line = line_end + padding;
2234 let min_start = content_origin.x - scroll_pixel_position.x + min_x;
2235
2236 cmp::max(padded_line, min_start)
2237 };
2238
2239 let behind_edit_prediction_popover = edit_prediction_popover_origin
2240 .as_ref()
2241 .is_some_and(|edit_prediction_popover_origin| {
2242 (pos_y..pos_y + line_height).contains(&edit_prediction_popover_origin.y)
2243 });
2244 let opacity = if behind_edit_prediction_popover {
2245 0.5
2246 } else {
2247 1.0
2248 };
2249
2250 let mut element = h_flex()
2251 .id(("diagnostic", row.0))
2252 .h(line_height)
2253 .w_full()
2254 .px_1()
2255 .rounded_xs()
2256 .opacity(opacity)
2257 .bg(severity_to_color(&diagnostic_to_render.severity)
2258 .color(cx)
2259 .opacity(0.05))
2260 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
2261 .text_sm()
2262 .font_family(style.text.font().family)
2263 .child(diagnostic_to_render.message.clone())
2264 .into_any();
2265
2266 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
2267
2268 elements.insert(row, element);
2269 }
2270
2271 elements
2272 }
2273
2274 fn layout_inline_code_actions(
2275 &self,
2276 display_point: DisplayPoint,
2277 content_origin: gpui::Point<Pixels>,
2278 scroll_pixel_position: gpui::Point<Pixels>,
2279 line_height: Pixels,
2280 snapshot: &EditorSnapshot,
2281 window: &mut Window,
2282 cx: &mut App,
2283 ) -> Option<AnyElement> {
2284 if !snapshot
2285 .show_code_actions
2286 .unwrap_or(EditorSettings::get_global(cx).inline_code_actions)
2287 {
2288 return None;
2289 }
2290
2291 let icon_size = ui::IconSize::XSmall;
2292 let mut button = self.editor.update(cx, |editor, cx| {
2293 editor.available_code_actions.as_ref()?;
2294 let active = editor
2295 .context_menu
2296 .borrow()
2297 .as_ref()
2298 .and_then(|menu| {
2299 if let crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2300 deployed_from,
2301 ..
2302 }) = menu
2303 {
2304 deployed_from.as_ref()
2305 } else {
2306 None
2307 }
2308 })
2309 .is_some_and(|source| matches!(source, CodeActionSource::Indicator(..)));
2310 Some(editor.render_inline_code_actions(icon_size, display_point.row(), active, cx))
2311 })?;
2312
2313 let buffer_point = display_point.to_point(&snapshot.display_snapshot);
2314
2315 // do not show code action for folded line
2316 if snapshot.is_line_folded(MultiBufferRow(buffer_point.row)) {
2317 return None;
2318 }
2319
2320 // do not show code action for blank line with cursor
2321 let line_indent = snapshot
2322 .display_snapshot
2323 .buffer_snapshot
2324 .line_indent_for_row(MultiBufferRow(buffer_point.row));
2325 if line_indent.is_line_blank() {
2326 return None;
2327 }
2328
2329 const INLINE_SLOT_CHAR_LIMIT: u32 = 4;
2330 const MAX_ALTERNATE_DISTANCE: u32 = 8;
2331
2332 let excerpt_id = snapshot
2333 .display_snapshot
2334 .buffer_snapshot
2335 .excerpt_containing(buffer_point..buffer_point)
2336 .map(|excerpt| excerpt.id());
2337
2338 let is_valid_row = |row_candidate: u32| -> bool {
2339 // move to other row if folded row
2340 if snapshot.is_line_folded(MultiBufferRow(row_candidate)) {
2341 return false;
2342 }
2343 if buffer_point.row == row_candidate {
2344 // move to other row if cursor is in slot
2345 if buffer_point.column < INLINE_SLOT_CHAR_LIMIT {
2346 return false;
2347 }
2348 } else {
2349 let candidate_point = MultiBufferPoint {
2350 row: row_candidate,
2351 column: 0,
2352 };
2353 let candidate_excerpt_id = snapshot
2354 .display_snapshot
2355 .buffer_snapshot
2356 .excerpt_containing(candidate_point..candidate_point)
2357 .map(|excerpt| excerpt.id());
2358 // move to other row if different excerpt
2359 if excerpt_id != candidate_excerpt_id {
2360 return false;
2361 }
2362 }
2363 let line_indent = snapshot
2364 .display_snapshot
2365 .buffer_snapshot
2366 .line_indent_for_row(MultiBufferRow(row_candidate));
2367 // use this row if it's blank
2368 if line_indent.is_line_blank() {
2369 true
2370 } else {
2371 // use this row if code starts after slot
2372 let indent_size = snapshot
2373 .display_snapshot
2374 .buffer_snapshot
2375 .indent_size_for_line(MultiBufferRow(row_candidate));
2376 indent_size.len >= INLINE_SLOT_CHAR_LIMIT
2377 }
2378 };
2379
2380 let new_buffer_row = if is_valid_row(buffer_point.row) {
2381 Some(buffer_point.row)
2382 } else {
2383 let max_row = snapshot.display_snapshot.buffer_snapshot.max_point().row;
2384 (1..=MAX_ALTERNATE_DISTANCE).find_map(|offset| {
2385 let row_above = buffer_point.row.saturating_sub(offset);
2386 let row_below = buffer_point.row + offset;
2387 if row_above != buffer_point.row && is_valid_row(row_above) {
2388 Some(row_above)
2389 } else if row_below <= max_row && is_valid_row(row_below) {
2390 Some(row_below)
2391 } else {
2392 None
2393 }
2394 })
2395 }?;
2396
2397 let new_display_row = snapshot
2398 .display_snapshot
2399 .point_to_display_point(
2400 Point {
2401 row: new_buffer_row,
2402 column: buffer_point.column,
2403 },
2404 text::Bias::Left,
2405 )
2406 .row();
2407
2408 let start_y = content_origin.y
2409 + ((new_display_row.as_f32() - (scroll_pixel_position.y / line_height)) * line_height)
2410 + (line_height / 2.0)
2411 - (icon_size.square(window, cx) / 2.);
2412 let start_x = content_origin.x - scroll_pixel_position.x + (window.rem_size() * 0.1);
2413
2414 let absolute_offset = gpui::point(start_x, start_y);
2415 button.layout_as_root(gpui::AvailableSpace::min_size(), window, cx);
2416 button.prepaint_as_root(
2417 absolute_offset,
2418 gpui::AvailableSpace::min_size(),
2419 window,
2420 cx,
2421 );
2422 Some(button)
2423 }
2424
2425 fn layout_inline_blame(
2426 &self,
2427 display_row: DisplayRow,
2428 row_info: &RowInfo,
2429 line_layout: &LineWithInvisibles,
2430 crease_trailer: Option<&CreaseTrailerLayout>,
2431 em_width: Pixels,
2432 content_origin: gpui::Point<Pixels>,
2433 scroll_pixel_position: gpui::Point<Pixels>,
2434 line_height: Pixels,
2435 text_hitbox: &Hitbox,
2436 window: &mut Window,
2437 cx: &mut App,
2438 ) -> Option<InlineBlameLayout> {
2439 if !self
2440 .editor
2441 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
2442 {
2443 return None;
2444 }
2445
2446 let editor = self.editor.read(cx);
2447 let blame = editor.blame.clone()?;
2448 let padding = {
2449 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
2450
2451 let mut padding = ProjectSettings::get_global(cx).git.inline_blame.padding as f32;
2452
2453 if let Some(edit_prediction) = editor.active_edit_prediction.as_ref()
2454 && let EditPrediction::Edit {
2455 display_mode: EditDisplayMode::TabAccept,
2456 ..
2457 } = &edit_prediction.completion
2458 {
2459 padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS
2460 }
2461
2462 padding * em_width
2463 };
2464
2465 let (buffer_id, entry) = blame
2466 .update(cx, |blame, cx| {
2467 blame.blame_for_rows(&[*row_info], cx).next()
2468 })
2469 .flatten()?;
2470
2471 let mut element = render_inline_blame_entry(entry.clone(), &self.style, cx)?;
2472
2473 let start_y = content_origin.y
2474 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
2475
2476 let start_x = {
2477 let line_end = if let Some(crease_trailer) = crease_trailer {
2478 crease_trailer.bounds.right()
2479 } else {
2480 content_origin.x - scroll_pixel_position.x + line_layout.width
2481 };
2482
2483 let padded_line_end = line_end + padding;
2484
2485 let min_column_in_pixels = self.column_pixels(
2486 ProjectSettings::get_global(cx).git.inline_blame.min_column as usize,
2487 window,
2488 );
2489 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
2490
2491 cmp::max(padded_line_end, min_start)
2492 };
2493
2494 let absolute_offset = point(start_x, start_y);
2495 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2496 let bounds = Bounds::new(absolute_offset, size);
2497
2498 self.layout_blame_entry_popover(
2499 entry.clone(),
2500 blame,
2501 line_height,
2502 text_hitbox,
2503 row_info.buffer_id?,
2504 window,
2505 cx,
2506 );
2507
2508 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
2509
2510 Some(InlineBlameLayout {
2511 element,
2512 bounds,
2513 buffer_id,
2514 entry,
2515 })
2516 }
2517
2518 fn layout_blame_entry_popover(
2519 &self,
2520 blame_entry: BlameEntry,
2521 blame: Entity<GitBlame>,
2522 line_height: Pixels,
2523 text_hitbox: &Hitbox,
2524 buffer: BufferId,
2525 window: &mut Window,
2526 cx: &mut App,
2527 ) {
2528 let Some((popover_state, target_point)) = self.editor.read_with(cx, |editor, _| {
2529 editor
2530 .inline_blame_popover
2531 .as_ref()
2532 .map(|state| (state.popover_state.clone(), state.position))
2533 }) else {
2534 return;
2535 };
2536
2537 let workspace = self
2538 .editor
2539 .read_with(cx, |editor, _| editor.workspace().map(|w| w.downgrade()));
2540
2541 let maybe_element = workspace.and_then(|workspace| {
2542 render_blame_entry_popover(
2543 blame_entry,
2544 popover_state.scroll_handle,
2545 popover_state.commit_message,
2546 popover_state.markdown,
2547 workspace,
2548 &blame,
2549 buffer,
2550 window,
2551 cx,
2552 )
2553 });
2554
2555 if let Some(mut element) = maybe_element {
2556 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2557 let overall_height = size.height + HOVER_POPOVER_GAP;
2558 let popover_origin = if target_point.y > overall_height {
2559 point(target_point.x, target_point.y - size.height)
2560 } else {
2561 point(
2562 target_point.x,
2563 target_point.y + line_height + HOVER_POPOVER_GAP,
2564 )
2565 };
2566
2567 let horizontal_offset = (text_hitbox.top_right().x
2568 - POPOVER_RIGHT_OFFSET
2569 - (popover_origin.x + size.width))
2570 .min(Pixels::ZERO);
2571
2572 let origin = point(popover_origin.x + horizontal_offset, popover_origin.y);
2573 let popover_bounds = Bounds::new(origin, size);
2574
2575 self.editor.update(cx, |editor, _| {
2576 if let Some(state) = &mut editor.inline_blame_popover {
2577 state.popover_bounds = Some(popover_bounds);
2578 }
2579 });
2580
2581 window.defer_draw(element, origin, 2);
2582 }
2583 }
2584
2585 fn layout_blame_entries(
2586 &self,
2587 buffer_rows: &[RowInfo],
2588 em_width: Pixels,
2589 scroll_position: gpui::Point<f32>,
2590 line_height: Pixels,
2591 gutter_hitbox: &Hitbox,
2592 max_width: Option<Pixels>,
2593 window: &mut Window,
2594 cx: &mut App,
2595 ) -> Option<Vec<AnyElement>> {
2596 if !self
2597 .editor
2598 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
2599 {
2600 return None;
2601 }
2602
2603 let blame = self.editor.read(cx).blame.clone()?;
2604 let workspace = self.editor.read(cx).workspace()?;
2605 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
2606 blame.blame_for_rows(buffer_rows, cx).collect()
2607 });
2608
2609 let width = if let Some(max_width) = max_width {
2610 AvailableSpace::Definite(max_width)
2611 } else {
2612 AvailableSpace::MaxContent
2613 };
2614 let scroll_top = scroll_position.y * line_height;
2615 let start_x = em_width;
2616
2617 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
2618 let blame_renderer = cx.global::<GlobalBlameRenderer>().0.clone();
2619
2620 let shaped_lines = blamed_rows
2621 .into_iter()
2622 .enumerate()
2623 .flat_map(|(ix, blame_entry)| {
2624 let (buffer_id, blame_entry) = blame_entry?;
2625 let mut element = render_blame_entry(
2626 ix,
2627 &blame,
2628 blame_entry,
2629 &self.style,
2630 &mut last_used_color,
2631 self.editor.clone(),
2632 workspace.clone(),
2633 buffer_id,
2634 blame_renderer.clone(),
2635 cx,
2636 )?;
2637
2638 let start_y = ix as f32 * line_height - (scroll_top % line_height);
2639 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
2640
2641 element.prepaint_as_root(
2642 absolute_offset,
2643 size(width, AvailableSpace::MinContent),
2644 window,
2645 cx,
2646 );
2647
2648 Some(element)
2649 })
2650 .collect();
2651
2652 Some(shaped_lines)
2653 }
2654
2655 fn layout_indent_guides(
2656 &self,
2657 content_origin: gpui::Point<Pixels>,
2658 text_origin: gpui::Point<Pixels>,
2659 visible_buffer_range: Range<MultiBufferRow>,
2660 scroll_pixel_position: gpui::Point<Pixels>,
2661 line_height: Pixels,
2662 snapshot: &DisplaySnapshot,
2663 window: &mut Window,
2664 cx: &mut App,
2665 ) -> Option<Vec<IndentGuideLayout>> {
2666 let indent_guides = self.editor.update(cx, |editor, cx| {
2667 editor.indent_guides(visible_buffer_range, snapshot, cx)
2668 })?;
2669
2670 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
2671 editor
2672 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
2673 .unwrap_or_default()
2674 });
2675
2676 Some(
2677 indent_guides
2678 .into_iter()
2679 .enumerate()
2680 .filter_map(|(i, indent_guide)| {
2681 let single_indent_width =
2682 self.column_pixels(indent_guide.tab_size as usize, window);
2683 let total_width = single_indent_width * indent_guide.depth as f32;
2684 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
2685 if start_x >= text_origin.x {
2686 let (offset_y, length) = Self::calculate_indent_guide_bounds(
2687 indent_guide.start_row..indent_guide.end_row,
2688 line_height,
2689 snapshot,
2690 );
2691
2692 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
2693
2694 Some(IndentGuideLayout {
2695 origin: point(start_x, start_y),
2696 length,
2697 single_indent_width,
2698 depth: indent_guide.depth,
2699 active: active_indent_guide_indices.contains(&i),
2700 settings: indent_guide.settings,
2701 })
2702 } else {
2703 None
2704 }
2705 })
2706 .collect(),
2707 )
2708 }
2709
2710 fn layout_wrap_guides(
2711 &self,
2712 em_advance: Pixels,
2713 scroll_position: gpui::Point<f32>,
2714 content_origin: gpui::Point<Pixels>,
2715 scrollbar_layout: Option<&EditorScrollbars>,
2716 vertical_scrollbar_width: Pixels,
2717 hitbox: &Hitbox,
2718 window: &Window,
2719 cx: &App,
2720 ) -> SmallVec<[(Pixels, bool); 2]> {
2721 let scroll_left = scroll_position.x * em_advance;
2722 let content_origin = content_origin.x;
2723 let horizontal_offset = content_origin - scroll_left;
2724 let vertical_scrollbar_width = scrollbar_layout
2725 .and_then(|layout| layout.visible.then_some(vertical_scrollbar_width))
2726 .unwrap_or_default();
2727
2728 self.editor
2729 .read(cx)
2730 .wrap_guides(cx)
2731 .into_iter()
2732 .flat_map(|(guide, active)| {
2733 let wrap_position = self.column_pixels(guide, window);
2734 let wrap_guide_x = wrap_position + horizontal_offset;
2735 let display_wrap_guide = wrap_guide_x >= content_origin
2736 && wrap_guide_x <= hitbox.bounds.right() - vertical_scrollbar_width;
2737
2738 display_wrap_guide.then_some((wrap_guide_x, active))
2739 })
2740 .collect()
2741 }
2742
2743 fn calculate_indent_guide_bounds(
2744 row_range: Range<MultiBufferRow>,
2745 line_height: Pixels,
2746 snapshot: &DisplaySnapshot,
2747 ) -> (gpui::Pixels, gpui::Pixels) {
2748 let start_point = Point::new(row_range.start.0, 0);
2749 let end_point = Point::new(row_range.end.0, 0);
2750
2751 let row_range = start_point.to_display_point(snapshot).row()
2752 ..end_point.to_display_point(snapshot).row();
2753
2754 let mut prev_line = start_point;
2755 prev_line.row = prev_line.row.saturating_sub(1);
2756 let prev_line = prev_line.to_display_point(snapshot).row();
2757
2758 let mut cons_line = end_point;
2759 cons_line.row += 1;
2760 let cons_line = cons_line.to_display_point(snapshot).row();
2761
2762 let mut offset_y = row_range.start.0 as f32 * line_height;
2763 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
2764
2765 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
2766 if row_range.end == cons_line {
2767 length += line_height;
2768 }
2769
2770 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
2771 // we want to extend the indent guide to the start of the block.
2772 let mut block_height = 0;
2773 let mut block_offset = 0;
2774 let mut found_excerpt_header = false;
2775 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
2776 if matches!(
2777 block,
2778 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
2779 ) {
2780 found_excerpt_header = true;
2781 break;
2782 }
2783 block_offset += block.height();
2784 block_height += block.height();
2785 }
2786 if !found_excerpt_header {
2787 offset_y -= block_offset as f32 * line_height;
2788 length += block_height as f32 * line_height;
2789 }
2790
2791 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
2792 // we want to ensure that the indent guide stops before the excerpt header.
2793 let mut block_height = 0;
2794 let mut found_excerpt_header = false;
2795 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
2796 if matches!(
2797 block,
2798 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
2799 ) {
2800 found_excerpt_header = true;
2801 }
2802 block_height += block.height();
2803 }
2804 if found_excerpt_header {
2805 length -= block_height as f32 * line_height;
2806 }
2807
2808 (offset_y, length)
2809 }
2810
2811 fn layout_breakpoints(
2812 &self,
2813 line_height: Pixels,
2814 range: Range<DisplayRow>,
2815 scroll_pixel_position: gpui::Point<Pixels>,
2816 gutter_dimensions: &GutterDimensions,
2817 gutter_hitbox: &Hitbox,
2818 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2819 snapshot: &EditorSnapshot,
2820 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
2821 row_infos: &[RowInfo],
2822 window: &mut Window,
2823 cx: &mut App,
2824 ) -> Vec<AnyElement> {
2825 self.editor.update(cx, |editor, cx| {
2826 breakpoints
2827 .into_iter()
2828 .filter_map(|(display_row, (text_anchor, bp, state))| {
2829 if row_infos
2830 .get((display_row.0.saturating_sub(range.start.0)) as usize)
2831 .is_some_and(|row_info| {
2832 row_info.expand_info.is_some()
2833 || row_info
2834 .diff_status
2835 .is_some_and(|status| status.is_deleted())
2836 })
2837 {
2838 return None;
2839 }
2840
2841 if range.start > display_row || range.end < display_row {
2842 return None;
2843 }
2844
2845 let row =
2846 MultiBufferRow(DisplayPoint::new(display_row, 0).to_point(snapshot).row);
2847 if snapshot.is_line_folded(row) {
2848 return None;
2849 }
2850
2851 let button = editor.render_breakpoint(text_anchor, display_row, &bp, state, cx);
2852
2853 let button = prepaint_gutter_button(
2854 button,
2855 display_row,
2856 line_height,
2857 gutter_dimensions,
2858 scroll_pixel_position,
2859 gutter_hitbox,
2860 display_hunks,
2861 window,
2862 cx,
2863 );
2864 Some(button)
2865 })
2866 .collect_vec()
2867 })
2868 }
2869
2870 #[allow(clippy::too_many_arguments)]
2871 fn layout_run_indicators(
2872 &self,
2873 line_height: Pixels,
2874 range: Range<DisplayRow>,
2875 row_infos: &[RowInfo],
2876 scroll_pixel_position: gpui::Point<Pixels>,
2877 gutter_dimensions: &GutterDimensions,
2878 gutter_hitbox: &Hitbox,
2879 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2880 snapshot: &EditorSnapshot,
2881 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
2882 window: &mut Window,
2883 cx: &mut App,
2884 ) -> Vec<AnyElement> {
2885 self.editor.update(cx, |editor, cx| {
2886 let active_task_indicator_row =
2887 // TODO: add edit button on the right side of each row in the context menu
2888 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2889 deployed_from,
2890 actions,
2891 ..
2892 })) = editor.context_menu.borrow().as_ref()
2893 {
2894 actions
2895 .tasks()
2896 .map(|tasks| tasks.position.to_display_point(snapshot).row())
2897 .or_else(|| match deployed_from {
2898 Some(CodeActionSource::Indicator(row)) => Some(*row),
2899 _ => None,
2900 })
2901 } else {
2902 None
2903 };
2904
2905 let offset_range_start =
2906 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
2907
2908 let offset_range_end =
2909 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
2910
2911 editor
2912 .tasks
2913 .iter()
2914 .filter_map(|(_, tasks)| {
2915 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot);
2916 if multibuffer_point < offset_range_start
2917 || multibuffer_point > offset_range_end
2918 {
2919 return None;
2920 }
2921 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
2922 let buffer_folded = snapshot
2923 .buffer_snapshot
2924 .buffer_line_for_row(multibuffer_row)
2925 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
2926 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
2927 .unwrap_or(false);
2928 if buffer_folded {
2929 return None;
2930 }
2931
2932 if snapshot.is_line_folded(multibuffer_row) {
2933 // Skip folded indicators, unless it's the starting line of a fold.
2934 if multibuffer_row
2935 .0
2936 .checked_sub(1)
2937 .is_some_and(|previous_row| {
2938 snapshot.is_line_folded(MultiBufferRow(previous_row))
2939 })
2940 {
2941 return None;
2942 }
2943 }
2944
2945 let display_row = multibuffer_point.to_display_point(snapshot).row();
2946 if !range.contains(&display_row) {
2947 return None;
2948 }
2949 if row_infos
2950 .get((display_row - range.start).0 as usize)
2951 .is_some_and(|row_info| row_info.expand_info.is_some())
2952 {
2953 return None;
2954 }
2955
2956 let button = editor.render_run_indicator(
2957 &self.style,
2958 Some(display_row) == active_task_indicator_row,
2959 display_row,
2960 breakpoints.remove(&display_row),
2961 cx,
2962 );
2963
2964 let button = prepaint_gutter_button(
2965 button,
2966 display_row,
2967 line_height,
2968 gutter_dimensions,
2969 scroll_pixel_position,
2970 gutter_hitbox,
2971 display_hunks,
2972 window,
2973 cx,
2974 );
2975 Some(button)
2976 })
2977 .collect_vec()
2978 })
2979 }
2980
2981 fn layout_expand_toggles(
2982 &self,
2983 gutter_hitbox: &Hitbox,
2984 gutter_dimensions: GutterDimensions,
2985 em_width: Pixels,
2986 line_height: Pixels,
2987 scroll_position: gpui::Point<f32>,
2988 buffer_rows: &[RowInfo],
2989 window: &mut Window,
2990 cx: &mut App,
2991 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
2992 if self.editor.read(cx).disable_expand_excerpt_buttons {
2993 return vec![];
2994 }
2995
2996 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
2997
2998 let scroll_top = scroll_position.y * line_height;
2999
3000 let max_line_number_length = self
3001 .editor
3002 .read(cx)
3003 .buffer()
3004 .read(cx)
3005 .snapshot(cx)
3006 .widest_line_number()
3007 .ilog10()
3008 + 1;
3009
3010 buffer_rows
3011 .iter()
3012 .enumerate()
3013 .map(|(ix, row_info)| {
3014 let ExpandInfo {
3015 excerpt_id,
3016 direction,
3017 } = row_info.expand_info?;
3018
3019 let icon_name = match direction {
3020 ExpandExcerptDirection::Up => IconName::ExpandUp,
3021 ExpandExcerptDirection::Down => IconName::ExpandDown,
3022 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
3023 };
3024
3025 let git_gutter_width = Self::gutter_strip_width(line_height);
3026 let available_width = gutter_dimensions.left_padding - git_gutter_width;
3027
3028 let editor = self.editor.clone();
3029 let is_wide = max_line_number_length
3030 >= EditorSettings::get_global(cx).gutter.min_line_number_digits as u32
3031 && row_info
3032 .buffer_row
3033 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
3034 || gutter_dimensions.right_padding == px(0.);
3035
3036 let width = if is_wide {
3037 available_width - px(2.)
3038 } else {
3039 available_width + em_width - px(2.)
3040 };
3041
3042 let toggle = IconButton::new(("expand", ix), icon_name)
3043 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
3044 .selected_icon_color(Color::Custom(cx.theme().colors().editor_foreground))
3045 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
3046 .width(width)
3047 .on_click(move |_, window, cx| {
3048 editor.update(cx, |editor, cx| {
3049 editor.expand_excerpt(excerpt_id, direction, window, cx);
3050 });
3051 })
3052 .tooltip(Tooltip::for_action_title(
3053 "Expand Excerpt",
3054 &crate::actions::ExpandExcerpts::default(),
3055 ))
3056 .into_any_element();
3057
3058 let position = point(
3059 git_gutter_width + px(1.),
3060 ix as f32 * line_height - (scroll_top % line_height) + px(1.),
3061 );
3062 let origin = gutter_hitbox.origin + position;
3063
3064 Some((toggle, origin))
3065 })
3066 .collect()
3067 }
3068
3069 fn calculate_relative_line_numbers(
3070 &self,
3071 snapshot: &EditorSnapshot,
3072 rows: &Range<DisplayRow>,
3073 relative_to: Option<DisplayRow>,
3074 ) -> HashMap<DisplayRow, DisplayRowDelta> {
3075 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
3076 let Some(relative_to) = relative_to else {
3077 return relative_rows;
3078 };
3079
3080 let start = rows.start.min(relative_to);
3081 let end = rows.end.max(relative_to);
3082
3083 let buffer_rows = snapshot
3084 .row_infos(start)
3085 .take(1 + end.minus(start) as usize)
3086 .collect::<Vec<_>>();
3087
3088 let head_idx = relative_to.minus(start);
3089 let mut delta = 1;
3090 let mut i = head_idx + 1;
3091 while i < buffer_rows.len() as u32 {
3092 if buffer_rows[i as usize].buffer_row.is_some() {
3093 if rows.contains(&DisplayRow(i + start.0)) {
3094 relative_rows.insert(DisplayRow(i + start.0), delta);
3095 }
3096 delta += 1;
3097 }
3098 i += 1;
3099 }
3100 delta = 1;
3101 i = head_idx.min(buffer_rows.len() as u32 - 1);
3102 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
3103 i -= 1;
3104 }
3105
3106 while i > 0 {
3107 i -= 1;
3108 if buffer_rows[i as usize].buffer_row.is_some() {
3109 if rows.contains(&DisplayRow(i + start.0)) {
3110 relative_rows.insert(DisplayRow(i + start.0), delta);
3111 }
3112 delta += 1;
3113 }
3114 }
3115
3116 relative_rows
3117 }
3118
3119 fn layout_line_numbers(
3120 &self,
3121 gutter_hitbox: Option<&Hitbox>,
3122 gutter_dimensions: GutterDimensions,
3123 line_height: Pixels,
3124 scroll_position: gpui::Point<f32>,
3125 rows: Range<DisplayRow>,
3126 buffer_rows: &[RowInfo],
3127 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3128 newest_selection_head: Option<DisplayPoint>,
3129 snapshot: &EditorSnapshot,
3130 window: &mut Window,
3131 cx: &mut App,
3132 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
3133 let include_line_numbers = snapshot
3134 .show_line_numbers
3135 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
3136 if !include_line_numbers {
3137 return Arc::default();
3138 }
3139
3140 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
3141 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
3142 let newest = editor.selections.newest::<Point>(cx);
3143 SelectionLayout::new(
3144 newest,
3145 editor.selections.line_mode,
3146 editor.cursor_shape,
3147 &snapshot.display_snapshot,
3148 true,
3149 true,
3150 None,
3151 )
3152 .head
3153 });
3154 let is_relative = editor.should_use_relative_line_numbers(cx);
3155 (newest_selection_head, is_relative)
3156 });
3157
3158 let relative_to = if is_relative {
3159 Some(newest_selection_head.row())
3160 } else {
3161 None
3162 };
3163 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
3164 let mut line_number = String::new();
3165 let line_numbers = buffer_rows
3166 .iter()
3167 .enumerate()
3168 .flat_map(|(ix, row_info)| {
3169 let display_row = DisplayRow(rows.start.0 + ix as u32);
3170 line_number.clear();
3171 let non_relative_number = row_info.buffer_row? + 1;
3172 let number = relative_rows
3173 .get(&display_row)
3174 .unwrap_or(&non_relative_number);
3175 write!(&mut line_number, "{number}").unwrap();
3176 if row_info
3177 .diff_status
3178 .is_some_and(|status| status.is_deleted())
3179 {
3180 return None;
3181 }
3182
3183 let color = active_rows
3184 .get(&display_row)
3185 .map(|spec| {
3186 if spec.breakpoint {
3187 cx.theme().colors().debugger_accent
3188 } else {
3189 cx.theme().colors().editor_active_line_number
3190 }
3191 })
3192 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
3193 let shaped_line =
3194 self.shape_line_number(SharedString::from(&line_number), color, window);
3195 let scroll_top = scroll_position.y * line_height;
3196 let line_origin = gutter_hitbox.map(|hitbox| {
3197 hitbox.origin
3198 + point(
3199 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
3200 ix as f32 * line_height - (scroll_top % line_height),
3201 )
3202 });
3203
3204 #[cfg(not(test))]
3205 let hitbox = line_origin.map(|line_origin| {
3206 window.insert_hitbox(
3207 Bounds::new(line_origin, size(shaped_line.width, line_height)),
3208 HitboxBehavior::Normal,
3209 )
3210 });
3211 #[cfg(test)]
3212 let hitbox = {
3213 let _ = line_origin;
3214 None
3215 };
3216
3217 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
3218 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
3219 let line_number = LineNumberLayout {
3220 shaped_line,
3221 hitbox,
3222 };
3223 Some((multi_buffer_row, line_number))
3224 })
3225 .collect();
3226 Arc::new(line_numbers)
3227 }
3228
3229 fn layout_crease_toggles(
3230 &self,
3231 rows: Range<DisplayRow>,
3232 row_infos: &[RowInfo],
3233 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3234 snapshot: &EditorSnapshot,
3235 window: &mut Window,
3236 cx: &mut App,
3237 ) -> Vec<Option<AnyElement>> {
3238 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
3239 && snapshot.mode.is_full()
3240 && self.editor.read(cx).is_singleton(cx);
3241 if include_fold_statuses {
3242 row_infos
3243 .iter()
3244 .enumerate()
3245 .map(|(ix, info)| {
3246 if info.expand_info.is_some() {
3247 return None;
3248 }
3249 let row = info.multibuffer_row?;
3250 let display_row = DisplayRow(rows.start.0 + ix as u32);
3251 let active = active_rows.contains_key(&display_row);
3252
3253 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
3254 })
3255 .collect()
3256 } else {
3257 Vec::new()
3258 }
3259 }
3260
3261 fn layout_crease_trailers(
3262 &self,
3263 buffer_rows: impl IntoIterator<Item = RowInfo>,
3264 snapshot: &EditorSnapshot,
3265 window: &mut Window,
3266 cx: &mut App,
3267 ) -> Vec<Option<AnyElement>> {
3268 buffer_rows
3269 .into_iter()
3270 .map(|row_info| {
3271 if row_info.expand_info.is_some() {
3272 return None;
3273 }
3274 if let Some(row) = row_info.multibuffer_row {
3275 snapshot.render_crease_trailer(row, window, cx)
3276 } else {
3277 None
3278 }
3279 })
3280 .collect()
3281 }
3282
3283 fn bg_segments_per_row(
3284 rows: Range<DisplayRow>,
3285 selections: &[(PlayerColor, Vec<SelectionLayout>)],
3286 highlight_ranges: &[(Range<DisplayPoint>, Hsla)],
3287 base_background: Hsla,
3288 ) -> Vec<Vec<(Range<DisplayPoint>, Hsla)>> {
3289 if rows.start >= rows.end {
3290 return Vec::new();
3291 }
3292 if !base_background.is_opaque() {
3293 // We don't actually know what color is behind this editor.
3294 return Vec::new();
3295 }
3296 let highlight_iter = highlight_ranges.iter().cloned();
3297 let selection_iter = selections.iter().flat_map(|(player_color, layouts)| {
3298 let color = player_color.selection;
3299 layouts.iter().filter_map(move |selection_layout| {
3300 if selection_layout.range.start != selection_layout.range.end {
3301 Some((selection_layout.range.clone(), color))
3302 } else {
3303 None
3304 }
3305 })
3306 });
3307 let mut per_row_map = vec![Vec::new(); rows.len()];
3308 for (range, color) in highlight_iter.chain(selection_iter) {
3309 let covered_rows = if range.end.column() == 0 {
3310 cmp::max(range.start.row(), rows.start)..cmp::min(range.end.row(), rows.end)
3311 } else {
3312 cmp::max(range.start.row(), rows.start)
3313 ..cmp::min(range.end.row().next_row(), rows.end)
3314 };
3315 for row in covered_rows.iter_rows() {
3316 let seg_start = if row == range.start.row() {
3317 range.start
3318 } else {
3319 DisplayPoint::new(row, 0)
3320 };
3321 let seg_end = if row == range.end.row() && range.end.column() != 0 {
3322 range.end
3323 } else {
3324 DisplayPoint::new(row, u32::MAX)
3325 };
3326 let ix = row.minus(rows.start) as usize;
3327 debug_assert!(row >= rows.start && row < rows.end);
3328 debug_assert!(ix < per_row_map.len());
3329 per_row_map[ix].push((seg_start..seg_end, color));
3330 }
3331 }
3332 for row_segments in per_row_map.iter_mut() {
3333 if row_segments.is_empty() {
3334 continue;
3335 }
3336 let segments = mem::take(row_segments);
3337 let merged = Self::merge_overlapping_ranges(segments, base_background);
3338 *row_segments = merged;
3339 }
3340 per_row_map
3341 }
3342
3343 /// Merge overlapping ranges by splitting at all range boundaries and blending colors where
3344 /// multiple ranges overlap. The result contains non-overlapping ranges ordered from left to right.
3345 ///
3346 /// Expects `start.row() == end.row()` for each range.
3347 fn merge_overlapping_ranges(
3348 ranges: Vec<(Range<DisplayPoint>, Hsla)>,
3349 base_background: Hsla,
3350 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
3351 struct Boundary {
3352 pos: DisplayPoint,
3353 is_start: bool,
3354 index: usize,
3355 color: Hsla,
3356 }
3357
3358 let mut boundaries: SmallVec<[Boundary; 16]> = SmallVec::with_capacity(ranges.len() * 2);
3359 for (index, (range, color)) in ranges.iter().enumerate() {
3360 debug_assert!(
3361 range.start.row() == range.end.row(),
3362 "expects single-row ranges"
3363 );
3364 if range.start < range.end {
3365 boundaries.push(Boundary {
3366 pos: range.start,
3367 is_start: true,
3368 index,
3369 color: *color,
3370 });
3371 boundaries.push(Boundary {
3372 pos: range.end,
3373 is_start: false,
3374 index,
3375 color: *color,
3376 });
3377 }
3378 }
3379
3380 if boundaries.is_empty() {
3381 return Vec::new();
3382 }
3383
3384 boundaries
3385 .sort_unstable_by(|a, b| a.pos.cmp(&b.pos).then_with(|| a.is_start.cmp(&b.is_start)));
3386
3387 let mut processed_ranges: Vec<(Range<DisplayPoint>, Hsla)> = Vec::new();
3388 let mut active_ranges: SmallVec<[(usize, Hsla); 8]> = SmallVec::new();
3389
3390 let mut i = 0;
3391 let mut start_pos = boundaries[0].pos;
3392
3393 let boundaries_len = boundaries.len();
3394 while i < boundaries_len {
3395 let current_boundary_pos = boundaries[i].pos;
3396 if start_pos < current_boundary_pos {
3397 if !active_ranges.is_empty() {
3398 let mut color = base_background;
3399 for &(_, c) in &active_ranges {
3400 color = Hsla::blend(color, c);
3401 }
3402 if let Some((last_range, last_color)) = processed_ranges.last_mut() {
3403 if *last_color == color && last_range.end == start_pos {
3404 last_range.end = current_boundary_pos;
3405 } else {
3406 processed_ranges.push((start_pos..current_boundary_pos, color));
3407 }
3408 } else {
3409 processed_ranges.push((start_pos..current_boundary_pos, color));
3410 }
3411 }
3412 }
3413 while i < boundaries_len && boundaries[i].pos == current_boundary_pos {
3414 let active_range = &boundaries[i];
3415 if active_range.is_start {
3416 let idx = active_range.index;
3417 let pos = active_ranges
3418 .binary_search_by_key(&idx, |(i, _)| *i)
3419 .unwrap_or_else(|p| p);
3420 active_ranges.insert(pos, (idx, active_range.color));
3421 } else {
3422 let idx = active_range.index;
3423 if let Ok(pos) = active_ranges.binary_search_by_key(&idx, |(i, _)| *i) {
3424 active_ranges.remove(pos);
3425 }
3426 }
3427 i += 1;
3428 }
3429 start_pos = current_boundary_pos;
3430 }
3431
3432 processed_ranges
3433 }
3434
3435 fn layout_lines(
3436 rows: Range<DisplayRow>,
3437 snapshot: &EditorSnapshot,
3438 style: &EditorStyle,
3439 editor_width: Pixels,
3440 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3441 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
3442 window: &mut Window,
3443 cx: &mut App,
3444 ) -> Vec<LineWithInvisibles> {
3445 if rows.start >= rows.end {
3446 return Vec::new();
3447 }
3448
3449 // Show the placeholder when the editor is empty
3450 if snapshot.is_empty() {
3451 let font_size = style.text.font_size.to_pixels(window.rem_size());
3452 let placeholder_color = cx.theme().colors().text_placeholder;
3453 let placeholder_text = snapshot.placeholder_text();
3454
3455 let placeholder_lines = placeholder_text
3456 .as_ref()
3457 .map_or(Vec::new(), |text| text.split('\n').collect::<Vec<_>>());
3458
3459 let placeholder_line_count = placeholder_lines.len();
3460
3461 placeholder_lines
3462 .into_iter()
3463 .skip(rows.start.0 as usize)
3464 .chain(iter::repeat(""))
3465 .take(cmp::max(rows.len(), placeholder_line_count))
3466 .map(move |line| {
3467 let run = TextRun {
3468 len: line.len(),
3469 font: style.text.font(),
3470 color: placeholder_color,
3471 background_color: None,
3472 underline: None,
3473 strikethrough: None,
3474 };
3475 let line = window.text_system().shape_line(
3476 line.to_string().into(),
3477 font_size,
3478 &[run],
3479 None,
3480 );
3481 LineWithInvisibles {
3482 width: line.width,
3483 len: line.len,
3484 fragments: smallvec![LineFragment::Text(line)],
3485 invisibles: Vec::new(),
3486 font_size,
3487 }
3488 })
3489 .collect()
3490 } else {
3491 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
3492 LineWithInvisibles::from_chunks(
3493 chunks,
3494 style,
3495 MAX_LINE_LEN,
3496 rows.len(),
3497 &snapshot.mode,
3498 editor_width,
3499 is_row_soft_wrapped,
3500 bg_segments_per_row,
3501 window,
3502 cx,
3503 )
3504 }
3505 }
3506
3507 fn prepaint_lines(
3508 &self,
3509 start_row: DisplayRow,
3510 line_layouts: &mut [LineWithInvisibles],
3511 line_height: Pixels,
3512 scroll_pixel_position: gpui::Point<Pixels>,
3513 content_origin: gpui::Point<Pixels>,
3514 window: &mut Window,
3515 cx: &mut App,
3516 ) -> SmallVec<[AnyElement; 1]> {
3517 let mut line_elements = SmallVec::new();
3518 for (ix, line) in line_layouts.iter_mut().enumerate() {
3519 let row = start_row + DisplayRow(ix as u32);
3520 line.prepaint(
3521 line_height,
3522 scroll_pixel_position,
3523 row,
3524 content_origin,
3525 &mut line_elements,
3526 window,
3527 cx,
3528 );
3529 }
3530 line_elements
3531 }
3532
3533 fn render_block(
3534 &self,
3535 block: &Block,
3536 available_width: AvailableSpace,
3537 block_id: BlockId,
3538 block_row_start: DisplayRow,
3539 snapshot: &EditorSnapshot,
3540 text_x: Pixels,
3541 rows: &Range<DisplayRow>,
3542 line_layouts: &[LineWithInvisibles],
3543 editor_margins: &EditorMargins,
3544 line_height: Pixels,
3545 em_width: Pixels,
3546 text_hitbox: &Hitbox,
3547 editor_width: Pixels,
3548 scroll_width: &mut Pixels,
3549 resized_blocks: &mut HashMap<CustomBlockId, u32>,
3550 row_block_types: &mut HashMap<DisplayRow, bool>,
3551 selections: &[Selection<Point>],
3552 selected_buffer_ids: &Vec<BufferId>,
3553 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3554 sticky_header_excerpt_id: Option<ExcerptId>,
3555 window: &mut Window,
3556 cx: &mut App,
3557 ) -> Option<(AnyElement, Size<Pixels>, DisplayRow, Pixels)> {
3558 let mut x_position = None;
3559 let mut element = match block {
3560 Block::Custom(custom) => {
3561 let block_start = custom.start().to_point(&snapshot.buffer_snapshot);
3562 let block_end = custom.end().to_point(&snapshot.buffer_snapshot);
3563 if block.place_near() && snapshot.is_line_folded(MultiBufferRow(block_start.row)) {
3564 return None;
3565 }
3566 let align_to = block_start.to_display_point(snapshot);
3567 let x_and_width = |layout: &LineWithInvisibles| {
3568 Some((
3569 text_x + layout.x_for_index(align_to.column() as usize),
3570 text_x + layout.width,
3571 ))
3572 };
3573 let line_ix = align_to.row().0.checked_sub(rows.start.0);
3574 x_position =
3575 if let Some(layout) = line_ix.and_then(|ix| line_layouts.get(ix as usize)) {
3576 x_and_width(layout)
3577 } else {
3578 x_and_width(&layout_line(
3579 align_to.row(),
3580 snapshot,
3581 &self.style,
3582 editor_width,
3583 is_row_soft_wrapped,
3584 window,
3585 cx,
3586 ))
3587 };
3588
3589 let anchor_x = x_position.unwrap().0;
3590
3591 let selected = selections
3592 .binary_search_by(|selection| {
3593 if selection.end <= block_start {
3594 Ordering::Less
3595 } else if selection.start >= block_end {
3596 Ordering::Greater
3597 } else {
3598 Ordering::Equal
3599 }
3600 })
3601 .is_ok();
3602
3603 div()
3604 .size_full()
3605 .child(custom.render(&mut BlockContext {
3606 window,
3607 app: cx,
3608 anchor_x,
3609 margins: editor_margins,
3610 line_height,
3611 em_width,
3612 block_id,
3613 selected,
3614 max_width: text_hitbox.size.width.max(*scroll_width),
3615 editor_style: &self.style,
3616 }))
3617 .into_any()
3618 }
3619
3620 Block::FoldedBuffer {
3621 first_excerpt,
3622 height,
3623 ..
3624 } => {
3625 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
3626 let result = v_flex().id(block_id).w_full().pr(editor_margins.right);
3627
3628 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
3629 result
3630 .child(self.render_buffer_header(
3631 first_excerpt,
3632 true,
3633 selected,
3634 false,
3635 jump_data,
3636 window,
3637 cx,
3638 ))
3639 .into_any_element()
3640 }
3641
3642 Block::ExcerptBoundary { .. } => {
3643 let color = cx.theme().colors().clone();
3644 let mut result = v_flex().id(block_id).w_full();
3645
3646 result = result.child(
3647 h_flex().relative().child(
3648 div()
3649 .top(line_height / 2.)
3650 .absolute()
3651 .w_full()
3652 .h_px()
3653 .bg(color.border_variant),
3654 ),
3655 );
3656
3657 result.into_any()
3658 }
3659
3660 Block::BufferHeader { excerpt, height } => {
3661 let mut result = v_flex().id(block_id).w_full();
3662
3663 let jump_data = header_jump_data(snapshot, block_row_start, *height, excerpt);
3664
3665 if sticky_header_excerpt_id != Some(excerpt.id) {
3666 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3667
3668 result = result.child(div().pr(editor_margins.right).child(
3669 self.render_buffer_header(
3670 excerpt, false, selected, false, jump_data, window, cx,
3671 ),
3672 ));
3673 } else {
3674 result =
3675 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
3676 }
3677
3678 result.into_any()
3679 }
3680 };
3681
3682 // Discover the element's content height, then round up to the nearest multiple of line height.
3683 let preliminary_size = element.layout_as_root(
3684 size(available_width, AvailableSpace::MinContent),
3685 window,
3686 cx,
3687 );
3688 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
3689 let final_size = if preliminary_size.height == quantized_height {
3690 preliminary_size
3691 } else {
3692 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
3693 };
3694 let mut element_height_in_lines = ((final_size.height / line_height).ceil() as u32).max(1);
3695
3696 let mut row = block_row_start;
3697 let mut x_offset = px(0.);
3698 let mut is_block = true;
3699
3700 if let BlockId::Custom(custom_block_id) = block_id
3701 && block.has_height()
3702 {
3703 if block.place_near()
3704 && let Some((x_target, line_width)) = x_position
3705 {
3706 let margin = em_width * 2;
3707 if line_width + final_size.width + margin
3708 < editor_width + editor_margins.gutter.full_width()
3709 && !row_block_types.contains_key(&(row - 1))
3710 && element_height_in_lines == 1
3711 {
3712 x_offset = line_width + margin;
3713 row = row - 1;
3714 is_block = false;
3715 element_height_in_lines = 0;
3716 row_block_types.insert(row, is_block);
3717 } else {
3718 let max_offset =
3719 editor_width + editor_margins.gutter.full_width() - final_size.width;
3720 let min_offset = (x_target + em_width - final_size.width)
3721 .max(editor_margins.gutter.full_width());
3722 x_offset = x_target.min(max_offset).max(min_offset);
3723 }
3724 };
3725 if element_height_in_lines != block.height() {
3726 resized_blocks.insert(custom_block_id, element_height_in_lines);
3727 }
3728 }
3729 for i in 0..element_height_in_lines {
3730 row_block_types.insert(row + i, is_block);
3731 }
3732
3733 Some((element, final_size, row, x_offset))
3734 }
3735
3736 fn render_buffer_header(
3737 &self,
3738 for_excerpt: &ExcerptInfo,
3739 is_folded: bool,
3740 is_selected: bool,
3741 is_sticky: bool,
3742 jump_data: JumpData,
3743 window: &mut Window,
3744 cx: &mut App,
3745 ) -> impl IntoElement {
3746 let editor = self.editor.read(cx);
3747 let multi_buffer = editor.buffer.read(cx);
3748 let file_status = multi_buffer
3749 .all_diff_hunks_expanded()
3750 .then(|| {
3751 editor
3752 .project
3753 .as_ref()?
3754 .read(cx)
3755 .status_for_buffer_id(for_excerpt.buffer_id, cx)
3756 })
3757 .flatten();
3758 let indicator = multi_buffer
3759 .buffer(for_excerpt.buffer_id)
3760 .and_then(|buffer| {
3761 let buffer = buffer.read(cx);
3762 let indicator_color = match (buffer.has_conflict(), buffer.is_dirty()) {
3763 (true, _) => Some(Color::Warning),
3764 (_, true) => Some(Color::Accent),
3765 (false, false) => None,
3766 };
3767 indicator_color.map(|indicator_color| Indicator::dot().color(indicator_color))
3768 });
3769
3770 let include_root = editor
3771 .project
3772 .as_ref()
3773 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
3774 .unwrap_or_default();
3775 let can_open_excerpts = Editor::can_open_excerpts_in_file(for_excerpt.buffer.file());
3776 let relative_path = for_excerpt.buffer.resolve_file_path(cx, include_root);
3777 let filename = relative_path
3778 .as_ref()
3779 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
3780 let parent_path = relative_path.as_ref().and_then(|path| {
3781 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
3782 });
3783 let focus_handle = editor.focus_handle(cx);
3784 let colors = cx.theme().colors();
3785
3786 let header = div()
3787 .p_1()
3788 .w_full()
3789 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
3790 .child(
3791 h_flex()
3792 .size_full()
3793 .gap_2()
3794 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
3795 .pl_0p5()
3796 .pr_5()
3797 .rounded_sm()
3798 .when(is_sticky, |el| el.shadow_md())
3799 .border_1()
3800 .map(|div| {
3801 let border_color = if is_selected
3802 && is_folded
3803 && focus_handle.contains_focused(window, cx)
3804 {
3805 colors.border_focused
3806 } else {
3807 colors.border
3808 };
3809 div.border_color(border_color)
3810 })
3811 .bg(colors.editor_subheader_background)
3812 .hover(|style| style.bg(colors.element_hover))
3813 .map(|header| {
3814 let editor = self.editor.clone();
3815 let buffer_id = for_excerpt.buffer_id;
3816 let toggle_chevron_icon =
3817 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
3818 header.child(
3819 div()
3820 .hover(|style| style.bg(colors.element_selected))
3821 .rounded_xs()
3822 .child(
3823 ButtonLike::new("toggle-buffer-fold")
3824 .style(ui::ButtonStyle::Transparent)
3825 .height(px(28.).into())
3826 .width(px(28.))
3827 .children(toggle_chevron_icon)
3828 .tooltip({
3829 let focus_handle = focus_handle.clone();
3830 move |window, cx| {
3831 Tooltip::with_meta_in(
3832 "Toggle Excerpt Fold",
3833 Some(&ToggleFold),
3834 "Alt+click to toggle all",
3835 &focus_handle,
3836 window,
3837 cx,
3838 )
3839 }
3840 })
3841 .on_click(move |event, window, cx| {
3842 if event.modifiers().alt {
3843 // Alt+click toggles all buffers
3844 editor.update(cx, |editor, cx| {
3845 editor.toggle_fold_all(
3846 &ToggleFoldAll,
3847 window,
3848 cx,
3849 );
3850 });
3851 } else {
3852 // Regular click toggles single buffer
3853 if is_folded {
3854 editor.update(cx, |editor, cx| {
3855 editor.unfold_buffer(buffer_id, cx);
3856 });
3857 } else {
3858 editor.update(cx, |editor, cx| {
3859 editor.fold_buffer(buffer_id, cx);
3860 });
3861 }
3862 }
3863 }),
3864 ),
3865 )
3866 })
3867 .children(
3868 editor
3869 .addons
3870 .values()
3871 .filter_map(|addon| {
3872 addon.render_buffer_header_controls(for_excerpt, window, cx)
3873 })
3874 .take(1),
3875 )
3876 .child(
3877 h_flex()
3878 .size(Pixels(12.0))
3879 .justify_center()
3880 .children(indicator),
3881 )
3882 .child(
3883 h_flex()
3884 .cursor_pointer()
3885 .id("path header block")
3886 .size_full()
3887 .justify_between()
3888 .overflow_hidden()
3889 .child(
3890 h_flex()
3891 .gap_2()
3892 .map(|path_header| {
3893 let filename = filename
3894 .map(SharedString::from)
3895 .unwrap_or_else(|| "untitled".into());
3896
3897 path_header
3898 .when(ItemSettings::get_global(cx).file_icons, |el| {
3899 let path = path::Path::new(filename.as_str());
3900 let icon = FileIcons::get_icon(path, cx)
3901 .unwrap_or_default();
3902 let icon =
3903 Icon::from_path(icon).color(Color::Muted);
3904 el.child(icon)
3905 })
3906 .child(Label::new(filename).single_line().when_some(
3907 file_status,
3908 |el, status| {
3909 el.color(if status.is_conflicted() {
3910 Color::Conflict
3911 } else if status.is_modified() {
3912 Color::Modified
3913 } else if status.is_deleted() {
3914 Color::Disabled
3915 } else {
3916 Color::Created
3917 })
3918 .when(status.is_deleted(), |el| {
3919 el.strikethrough()
3920 })
3921 },
3922 ))
3923 })
3924 .when_some(parent_path, |then, path| {
3925 then.child(div().child(path).text_color(
3926 if file_status.is_some_and(FileStatus::is_deleted) {
3927 colors.text_disabled
3928 } else {
3929 colors.text_muted
3930 },
3931 ))
3932 }),
3933 )
3934 .when(
3935 can_open_excerpts && is_selected && relative_path.is_some(),
3936 |el| {
3937 el.child(
3938 h_flex()
3939 .id("jump-to-file-button")
3940 .gap_2p5()
3941 .child(Label::new("Jump To File"))
3942 .children(
3943 KeyBinding::for_action_in(
3944 &OpenExcerpts,
3945 &focus_handle,
3946 window,
3947 cx,
3948 )
3949 .map(|binding| binding.into_any_element()),
3950 ),
3951 )
3952 },
3953 )
3954 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
3955 .on_click(window.listener_for(&self.editor, {
3956 move |editor, e: &ClickEvent, window, cx| {
3957 editor.open_excerpts_common(
3958 Some(jump_data.clone()),
3959 e.modifiers().secondary(),
3960 window,
3961 cx,
3962 );
3963 }
3964 })),
3965 ),
3966 );
3967
3968 let file = for_excerpt.buffer.file().cloned();
3969 let editor = self.editor.clone();
3970 right_click_menu("buffer-header-context-menu")
3971 .trigger(move |_, _, _| header)
3972 .menu(move |window, cx| {
3973 let menu_context = focus_handle.clone();
3974 let editor = editor.clone();
3975 let file = file.clone();
3976 ContextMenu::build(window, cx, move |mut menu, window, cx| {
3977 if let Some(file) = file
3978 && let Some(project) = editor.read(cx).project()
3979 && let Some(worktree) =
3980 project.read(cx).worktree_for_id(file.worktree_id(cx), cx)
3981 {
3982 let worktree = worktree.read(cx);
3983 let relative_path = file.path();
3984 let entry_for_path = worktree.entry_for_path(relative_path);
3985 let abs_path = entry_for_path.map(|e| {
3986 e.canonical_path.as_deref().map_or_else(
3987 || worktree.abs_path().join(relative_path),
3988 Path::to_path_buf,
3989 )
3990 });
3991 let has_relative_path = worktree.root_entry().is_some_and(Entry::is_dir);
3992
3993 let parent_abs_path = abs_path
3994 .as_ref()
3995 .and_then(|abs_path| Some(abs_path.parent()?.to_path_buf()));
3996 let relative_path = has_relative_path
3997 .then_some(relative_path)
3998 .map(ToOwned::to_owned);
3999
4000 let visible_in_project_panel =
4001 relative_path.is_some() && worktree.is_visible();
4002 let reveal_in_project_panel = entry_for_path
4003 .filter(|_| visible_in_project_panel)
4004 .map(|entry| entry.id);
4005 menu = menu
4006 .when_some(abs_path, |menu, abs_path| {
4007 menu.entry(
4008 "Copy Path",
4009 Some(Box::new(zed_actions::workspace::CopyPath)),
4010 window.handler_for(&editor, move |_, _, cx| {
4011 cx.write_to_clipboard(ClipboardItem::new_string(
4012 abs_path.to_string_lossy().to_string(),
4013 ));
4014 }),
4015 )
4016 })
4017 .when_some(relative_path, |menu, relative_path| {
4018 menu.entry(
4019 "Copy Relative Path",
4020 Some(Box::new(zed_actions::workspace::CopyRelativePath)),
4021 window.handler_for(&editor, move |_, _, cx| {
4022 cx.write_to_clipboard(ClipboardItem::new_string(
4023 relative_path.to_string_lossy().to_string(),
4024 ));
4025 }),
4026 )
4027 })
4028 .when(
4029 reveal_in_project_panel.is_some() || parent_abs_path.is_some(),
4030 |menu| menu.separator(),
4031 )
4032 .when_some(reveal_in_project_panel, |menu, entry_id| {
4033 menu.entry(
4034 "Reveal In Project Panel",
4035 Some(Box::new(RevealInProjectPanel::default())),
4036 window.handler_for(&editor, move |editor, _, cx| {
4037 if let Some(project) = &mut editor.project {
4038 project.update(cx, |_, cx| {
4039 cx.emit(project::Event::RevealInProjectPanel(
4040 entry_id,
4041 ))
4042 });
4043 }
4044 }),
4045 )
4046 })
4047 .when_some(parent_abs_path, |menu, parent_abs_path| {
4048 menu.entry(
4049 "Open in Terminal",
4050 Some(Box::new(OpenInTerminal)),
4051 window.handler_for(&editor, move |_, window, cx| {
4052 window.dispatch_action(
4053 OpenTerminal {
4054 working_directory: parent_abs_path.clone(),
4055 }
4056 .boxed_clone(),
4057 cx,
4058 );
4059 }),
4060 )
4061 });
4062 }
4063
4064 menu.context(menu_context)
4065 })
4066 })
4067 }
4068
4069 fn render_blocks(
4070 &self,
4071 rows: Range<DisplayRow>,
4072 snapshot: &EditorSnapshot,
4073 hitbox: &Hitbox,
4074 text_hitbox: &Hitbox,
4075 editor_width: Pixels,
4076 scroll_width: &mut Pixels,
4077 editor_margins: &EditorMargins,
4078 em_width: Pixels,
4079 text_x: Pixels,
4080 line_height: Pixels,
4081 line_layouts: &mut [LineWithInvisibles],
4082 selections: &[Selection<Point>],
4083 selected_buffer_ids: &Vec<BufferId>,
4084 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4085 sticky_header_excerpt_id: Option<ExcerptId>,
4086 window: &mut Window,
4087 cx: &mut App,
4088 ) -> Result<(Vec<BlockLayout>, HashMap<DisplayRow, bool>), HashMap<CustomBlockId, u32>> {
4089 let (fixed_blocks, non_fixed_blocks) = snapshot
4090 .blocks_in_range(rows.clone())
4091 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
4092
4093 let mut focused_block = self
4094 .editor
4095 .update(cx, |editor, _| editor.take_focused_block());
4096 let mut fixed_block_max_width = Pixels::ZERO;
4097 let mut blocks = Vec::new();
4098 let mut resized_blocks = HashMap::default();
4099 let mut row_block_types = HashMap::default();
4100
4101 for (row, block) in fixed_blocks {
4102 let block_id = block.id();
4103
4104 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4105 focused_block = None;
4106 }
4107
4108 if let Some((element, element_size, row, x_offset)) = self.render_block(
4109 block,
4110 AvailableSpace::MinContent,
4111 block_id,
4112 row,
4113 snapshot,
4114 text_x,
4115 &rows,
4116 line_layouts,
4117 editor_margins,
4118 line_height,
4119 em_width,
4120 text_hitbox,
4121 editor_width,
4122 scroll_width,
4123 &mut resized_blocks,
4124 &mut row_block_types,
4125 selections,
4126 selected_buffer_ids,
4127 is_row_soft_wrapped,
4128 sticky_header_excerpt_id,
4129 window,
4130 cx,
4131 ) {
4132 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
4133 blocks.push(BlockLayout {
4134 id: block_id,
4135 x_offset,
4136 row: Some(row),
4137 element,
4138 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
4139 style: BlockStyle::Fixed,
4140 overlaps_gutter: true,
4141 is_buffer_header: block.is_buffer_header(),
4142 });
4143 }
4144 }
4145
4146 for (row, block) in non_fixed_blocks {
4147 let style = block.style();
4148 let width = match (style, block.place_near()) {
4149 (_, true) => AvailableSpace::MinContent,
4150 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
4151 (BlockStyle::Flex, _) => hitbox
4152 .size
4153 .width
4154 .max(fixed_block_max_width)
4155 .max(editor_margins.gutter.width + *scroll_width)
4156 .into(),
4157 (BlockStyle::Fixed, _) => unreachable!(),
4158 };
4159 let block_id = block.id();
4160
4161 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4162 focused_block = None;
4163 }
4164
4165 if let Some((element, element_size, row, x_offset)) = self.render_block(
4166 block,
4167 width,
4168 block_id,
4169 row,
4170 snapshot,
4171 text_x,
4172 &rows,
4173 line_layouts,
4174 editor_margins,
4175 line_height,
4176 em_width,
4177 text_hitbox,
4178 editor_width,
4179 scroll_width,
4180 &mut resized_blocks,
4181 &mut row_block_types,
4182 selections,
4183 selected_buffer_ids,
4184 is_row_soft_wrapped,
4185 sticky_header_excerpt_id,
4186 window,
4187 cx,
4188 ) {
4189 blocks.push(BlockLayout {
4190 id: block_id,
4191 x_offset,
4192 row: Some(row),
4193 element,
4194 available_space: size(width, element_size.height.into()),
4195 style,
4196 overlaps_gutter: !block.place_near(),
4197 is_buffer_header: block.is_buffer_header(),
4198 });
4199 }
4200 }
4201
4202 if let Some(focused_block) = focused_block
4203 && let Some(focus_handle) = focused_block.focus_handle.upgrade()
4204 && focus_handle.is_focused(window)
4205 && let Some(block) = snapshot.block_for_id(focused_block.id)
4206 {
4207 let style = block.style();
4208 let width = match style {
4209 BlockStyle::Fixed => AvailableSpace::MinContent,
4210 BlockStyle::Flex => AvailableSpace::Definite(
4211 hitbox
4212 .size
4213 .width
4214 .max(fixed_block_max_width)
4215 .max(editor_margins.gutter.width + *scroll_width),
4216 ),
4217 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
4218 };
4219
4220 if let Some((element, element_size, _, x_offset)) = self.render_block(
4221 &block,
4222 width,
4223 focused_block.id,
4224 rows.end,
4225 snapshot,
4226 text_x,
4227 &rows,
4228 line_layouts,
4229 editor_margins,
4230 line_height,
4231 em_width,
4232 text_hitbox,
4233 editor_width,
4234 scroll_width,
4235 &mut resized_blocks,
4236 &mut row_block_types,
4237 selections,
4238 selected_buffer_ids,
4239 is_row_soft_wrapped,
4240 sticky_header_excerpt_id,
4241 window,
4242 cx,
4243 ) {
4244 blocks.push(BlockLayout {
4245 id: block.id(),
4246 x_offset,
4247 row: None,
4248 element,
4249 available_space: size(width, element_size.height.into()),
4250 style,
4251 overlaps_gutter: true,
4252 is_buffer_header: block.is_buffer_header(),
4253 });
4254 }
4255 }
4256
4257 if resized_blocks.is_empty() {
4258 *scroll_width =
4259 (*scroll_width).max(fixed_block_max_width - editor_margins.gutter.width);
4260 Ok((blocks, row_block_types))
4261 } else {
4262 Err(resized_blocks)
4263 }
4264 }
4265
4266 fn layout_blocks(
4267 &self,
4268 blocks: &mut Vec<BlockLayout>,
4269 hitbox: &Hitbox,
4270 line_height: Pixels,
4271 scroll_pixel_position: gpui::Point<Pixels>,
4272 window: &mut Window,
4273 cx: &mut App,
4274 ) {
4275 for block in blocks {
4276 let mut origin = if let Some(row) = block.row {
4277 hitbox.origin
4278 + point(
4279 block.x_offset,
4280 row.as_f32() * line_height - scroll_pixel_position.y,
4281 )
4282 } else {
4283 // Position the block outside the visible area
4284 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
4285 };
4286
4287 if !matches!(block.style, BlockStyle::Sticky) {
4288 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
4289 }
4290
4291 let focus_handle =
4292 block
4293 .element
4294 .prepaint_as_root(origin, block.available_space, window, cx);
4295
4296 if let Some(focus_handle) = focus_handle {
4297 self.editor.update(cx, |editor, _cx| {
4298 editor.set_focused_block(FocusedBlock {
4299 id: block.id,
4300 focus_handle: focus_handle.downgrade(),
4301 });
4302 });
4303 }
4304 }
4305 }
4306
4307 fn layout_sticky_buffer_header(
4308 &self,
4309 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
4310 scroll_position: f32,
4311 line_height: Pixels,
4312 right_margin: Pixels,
4313 snapshot: &EditorSnapshot,
4314 hitbox: &Hitbox,
4315 selected_buffer_ids: &Vec<BufferId>,
4316 blocks: &[BlockLayout],
4317 window: &mut Window,
4318 cx: &mut App,
4319 ) -> AnyElement {
4320 let jump_data = header_jump_data(
4321 snapshot,
4322 DisplayRow(scroll_position as u32),
4323 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
4324 excerpt,
4325 );
4326
4327 let editor_bg_color = cx.theme().colors().editor_background;
4328
4329 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
4330
4331 let available_width = hitbox.bounds.size.width - right_margin;
4332
4333 let mut header = v_flex()
4334 .w_full()
4335 .relative()
4336 .child(
4337 div()
4338 .w(available_width)
4339 .h(FILE_HEADER_HEIGHT as f32 * line_height)
4340 .bg(linear_gradient(
4341 0.,
4342 linear_color_stop(editor_bg_color.opacity(0.), 0.),
4343 linear_color_stop(editor_bg_color, 0.6),
4344 ))
4345 .absolute()
4346 .top_0(),
4347 )
4348 .child(
4349 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
4350 .into_any_element(),
4351 )
4352 .into_any_element();
4353
4354 let mut origin = hitbox.origin;
4355 // Move floating header up to avoid colliding with the next buffer header.
4356 for block in blocks.iter() {
4357 if !block.is_buffer_header {
4358 continue;
4359 }
4360
4361 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position as u32) else {
4362 continue;
4363 };
4364
4365 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
4366 let offset = scroll_position - max_row as f32;
4367
4368 if offset > 0.0 {
4369 origin.y -= offset * line_height;
4370 }
4371 break;
4372 }
4373
4374 let size = size(
4375 AvailableSpace::Definite(available_width),
4376 AvailableSpace::MinContent,
4377 );
4378
4379 header.prepaint_as_root(origin, size, window, cx);
4380
4381 header
4382 }
4383
4384 fn layout_cursor_popovers(
4385 &self,
4386 line_height: Pixels,
4387 text_hitbox: &Hitbox,
4388 content_origin: gpui::Point<Pixels>,
4389 right_margin: Pixels,
4390 start_row: DisplayRow,
4391 scroll_pixel_position: gpui::Point<Pixels>,
4392 line_layouts: &[LineWithInvisibles],
4393 cursor: DisplayPoint,
4394 cursor_point: Point,
4395 style: &EditorStyle,
4396 window: &mut Window,
4397 cx: &mut App,
4398 ) -> Option<ContextMenuLayout> {
4399 let mut min_menu_height = Pixels::ZERO;
4400 let mut max_menu_height = Pixels::ZERO;
4401 let mut height_above_menu = Pixels::ZERO;
4402 let height_below_menu = Pixels::ZERO;
4403 let mut edit_prediction_popover_visible = false;
4404 let mut context_menu_visible = false;
4405 let context_menu_placement;
4406
4407 {
4408 let editor = self.editor.read(cx);
4409 if editor.edit_prediction_visible_in_cursor_popover(editor.has_active_edit_prediction())
4410 {
4411 height_above_menu +=
4412 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
4413 edit_prediction_popover_visible = true;
4414 }
4415
4416 if editor.context_menu_visible()
4417 && let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin()
4418 {
4419 let (min_height_in_lines, max_height_in_lines) = editor
4420 .context_menu_options
4421 .as_ref()
4422 .map_or((3, 12), |options| {
4423 (options.min_entries_visible, options.max_entries_visible)
4424 });
4425
4426 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4427 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4428 context_menu_visible = true;
4429 }
4430 context_menu_placement = editor
4431 .context_menu_options
4432 .as_ref()
4433 .and_then(|options| options.placement.clone());
4434 }
4435
4436 let visible = edit_prediction_popover_visible || context_menu_visible;
4437 if !visible {
4438 return None;
4439 }
4440
4441 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
4442 let target_position = content_origin
4443 + gpui::Point {
4444 x: cmp::max(
4445 px(0.),
4446 cursor_row_layout.x_for_index(cursor.column() as usize)
4447 - scroll_pixel_position.x,
4448 ),
4449 y: cmp::max(
4450 px(0.),
4451 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
4452 ),
4453 };
4454
4455 let viewport_bounds =
4456 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4457 right: -right_margin - MENU_GAP,
4458 ..Default::default()
4459 });
4460
4461 let min_height = height_above_menu + min_menu_height + height_below_menu;
4462 let max_height = height_above_menu + max_menu_height + height_below_menu;
4463 let (laid_out_popovers, y_flipped) = self.layout_popovers_above_or_below_line(
4464 target_position,
4465 line_height,
4466 min_height,
4467 max_height,
4468 context_menu_placement,
4469 text_hitbox,
4470 viewport_bounds,
4471 window,
4472 cx,
4473 |height, max_width_for_stable_x, y_flipped, window, cx| {
4474 // First layout the menu to get its size - others can be at least this wide.
4475 let context_menu = if context_menu_visible {
4476 let menu_height = if y_flipped {
4477 height - height_below_menu
4478 } else {
4479 height - height_above_menu
4480 };
4481 let mut element = self
4482 .render_context_menu(line_height, menu_height, window, cx)
4483 .expect("Visible context menu should always render.");
4484 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4485 Some((CursorPopoverType::CodeContextMenu, element, size))
4486 } else {
4487 None
4488 };
4489 let min_width = context_menu
4490 .as_ref()
4491 .map_or(px(0.), |(_, _, size)| size.width);
4492 let max_width = max_width_for_stable_x.max(
4493 context_menu
4494 .as_ref()
4495 .map_or(px(0.), |(_, _, size)| size.width),
4496 );
4497
4498 let edit_prediction = if edit_prediction_popover_visible {
4499 self.editor.update(cx, move |editor, cx| {
4500 let accept_binding =
4501 editor.accept_edit_prediction_keybind(false, window, cx);
4502 let mut element = editor.render_edit_prediction_cursor_popover(
4503 min_width,
4504 max_width,
4505 cursor_point,
4506 style,
4507 accept_binding.keystroke(),
4508 window,
4509 cx,
4510 )?;
4511 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4512 Some((CursorPopoverType::EditPrediction, element, size))
4513 })
4514 } else {
4515 None
4516 };
4517 vec![edit_prediction, context_menu]
4518 .into_iter()
4519 .flatten()
4520 .collect::<Vec<_>>()
4521 },
4522 )?;
4523
4524 let (menu_ix, (_, menu_bounds)) = laid_out_popovers
4525 .iter()
4526 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))?;
4527 let last_ix = laid_out_popovers.len() - 1;
4528 let menu_is_last = menu_ix == last_ix;
4529 let first_popover_bounds = laid_out_popovers[0].1;
4530 let last_popover_bounds = laid_out_popovers[last_ix].1;
4531
4532 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
4533 // right, and otherwise it goes below or to the right.
4534 let mut target_bounds = Bounds::from_corners(
4535 first_popover_bounds.origin,
4536 last_popover_bounds.bottom_right(),
4537 );
4538 target_bounds.size.width = menu_bounds.size.width;
4539
4540 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
4541 // based on this is preferred for layout stability.
4542 let mut max_target_bounds = target_bounds;
4543 max_target_bounds.size.height = max_height;
4544 if y_flipped {
4545 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
4546 }
4547
4548 // Add spacing around `target_bounds` and `max_target_bounds`.
4549 let mut extend_amount = Edges::all(MENU_GAP);
4550 if y_flipped {
4551 extend_amount.bottom = line_height;
4552 } else {
4553 extend_amount.top = line_height;
4554 }
4555 let target_bounds = target_bounds.extend(extend_amount);
4556 let max_target_bounds = max_target_bounds.extend(extend_amount);
4557
4558 let must_place_above_or_below =
4559 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
4560 laid_out_popovers[menu_ix + 1..]
4561 .iter()
4562 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
4563 } else {
4564 false
4565 };
4566
4567 let aside_bounds = self.layout_context_menu_aside(
4568 y_flipped,
4569 *menu_bounds,
4570 target_bounds,
4571 max_target_bounds,
4572 max_menu_height,
4573 must_place_above_or_below,
4574 text_hitbox,
4575 viewport_bounds,
4576 window,
4577 cx,
4578 );
4579
4580 if let Some(menu_bounds) = laid_out_popovers.iter().find_map(|(popover_type, bounds)| {
4581 if matches!(popover_type, CursorPopoverType::CodeContextMenu) {
4582 Some(*bounds)
4583 } else {
4584 None
4585 }
4586 }) {
4587 let bounds = if let Some(aside_bounds) = aside_bounds {
4588 menu_bounds.union(&aside_bounds)
4589 } else {
4590 menu_bounds
4591 };
4592 return Some(ContextMenuLayout { y_flipped, bounds });
4593 }
4594
4595 None
4596 }
4597
4598 fn layout_gutter_menu(
4599 &self,
4600 line_height: Pixels,
4601 text_hitbox: &Hitbox,
4602 content_origin: gpui::Point<Pixels>,
4603 right_margin: Pixels,
4604 scroll_pixel_position: gpui::Point<Pixels>,
4605 gutter_overshoot: Pixels,
4606 window: &mut Window,
4607 cx: &mut App,
4608 ) {
4609 let editor = self.editor.read(cx);
4610 if !editor.context_menu_visible() {
4611 return;
4612 }
4613 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
4614 editor.context_menu_origin()
4615 else {
4616 return;
4617 };
4618 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
4619 // indicator than just a plain first column of the text field.
4620 let target_position = content_origin
4621 + gpui::Point {
4622 x: -gutter_overshoot,
4623 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
4624 };
4625
4626 let (min_height_in_lines, max_height_in_lines) = editor
4627 .context_menu_options
4628 .as_ref()
4629 .map_or((3, 12), |options| {
4630 (options.min_entries_visible, options.max_entries_visible)
4631 });
4632
4633 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4634 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4635 let viewport_bounds =
4636 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4637 right: -right_margin - MENU_GAP,
4638 ..Default::default()
4639 });
4640 self.layout_popovers_above_or_below_line(
4641 target_position,
4642 line_height,
4643 min_height,
4644 max_height,
4645 editor
4646 .context_menu_options
4647 .as_ref()
4648 .and_then(|options| options.placement.clone()),
4649 text_hitbox,
4650 viewport_bounds,
4651 window,
4652 cx,
4653 move |height, _max_width_for_stable_x, _, window, cx| {
4654 let mut element = self
4655 .render_context_menu(line_height, height, window, cx)
4656 .expect("Visible context menu should always render.");
4657 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4658 vec![(CursorPopoverType::CodeContextMenu, element, size)]
4659 },
4660 );
4661 }
4662
4663 fn layout_popovers_above_or_below_line(
4664 &self,
4665 target_position: gpui::Point<Pixels>,
4666 line_height: Pixels,
4667 min_height: Pixels,
4668 max_height: Pixels,
4669 placement: Option<ContextMenuPlacement>,
4670 text_hitbox: &Hitbox,
4671 viewport_bounds: Bounds<Pixels>,
4672 window: &mut Window,
4673 cx: &mut App,
4674 make_sized_popovers: impl FnOnce(
4675 Pixels,
4676 Pixels,
4677 bool,
4678 &mut Window,
4679 &mut App,
4680 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
4681 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
4682 let text_style = TextStyleRefinement {
4683 line_height: Some(DefiniteLength::Fraction(
4684 BufferLineHeight::Comfortable.value(),
4685 )),
4686 ..Default::default()
4687 };
4688 window.with_text_style(Some(text_style), |window| {
4689 // If the max height won't fit below and there is more space above, put it above the line.
4690 let bottom_y_when_flipped = target_position.y - line_height;
4691 let available_above = bottom_y_when_flipped - text_hitbox.top();
4692 let available_below = text_hitbox.bottom() - target_position.y;
4693 let y_overflows_below = max_height > available_below;
4694 let mut y_flipped = match placement {
4695 Some(ContextMenuPlacement::Above) => true,
4696 Some(ContextMenuPlacement::Below) => false,
4697 None => y_overflows_below && available_above > available_below,
4698 };
4699 let mut height = cmp::min(
4700 max_height,
4701 if y_flipped {
4702 available_above
4703 } else {
4704 available_below
4705 },
4706 );
4707
4708 // If the min height doesn't fit within text bounds, instead fit within the window.
4709 if height < min_height {
4710 let available_above = bottom_y_when_flipped;
4711 let available_below = viewport_bounds.bottom() - target_position.y;
4712 let (y_flipped_override, height_override) = match placement {
4713 Some(ContextMenuPlacement::Above) => {
4714 (true, cmp::min(available_above, min_height))
4715 }
4716 Some(ContextMenuPlacement::Below) => {
4717 (false, cmp::min(available_below, min_height))
4718 }
4719 None => {
4720 if available_below > min_height {
4721 (false, min_height)
4722 } else if available_above > min_height {
4723 (true, min_height)
4724 } else if available_above > available_below {
4725 (true, available_above)
4726 } else {
4727 (false, available_below)
4728 }
4729 }
4730 };
4731 y_flipped = y_flipped_override;
4732 height = height_override;
4733 }
4734
4735 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
4736
4737 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
4738 // for very narrow windows.
4739 let popovers =
4740 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
4741 if popovers.is_empty() {
4742 return None;
4743 }
4744
4745 let max_width = popovers
4746 .iter()
4747 .map(|(_, _, size)| size.width)
4748 .max()
4749 .unwrap_or_default();
4750
4751 let mut current_position = gpui::Point {
4752 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
4753 // overflow. Include space for the scrollbar.
4754 x: target_position
4755 .x
4756 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
4757 y: if y_flipped {
4758 bottom_y_when_flipped
4759 } else {
4760 target_position.y
4761 },
4762 };
4763
4764 let mut laid_out_popovers = popovers
4765 .into_iter()
4766 .map(|(popover_type, element, size)| {
4767 if y_flipped {
4768 current_position.y -= size.height;
4769 }
4770 let position = current_position;
4771 window.defer_draw(element, current_position, 1);
4772 if !y_flipped {
4773 current_position.y += size.height + MENU_GAP;
4774 } else {
4775 current_position.y -= MENU_GAP;
4776 }
4777 (popover_type, Bounds::new(position, size))
4778 })
4779 .collect::<Vec<_>>();
4780
4781 if y_flipped {
4782 laid_out_popovers.reverse();
4783 }
4784
4785 Some((laid_out_popovers, y_flipped))
4786 })
4787 }
4788
4789 fn layout_context_menu_aside(
4790 &self,
4791 y_flipped: bool,
4792 menu_bounds: Bounds<Pixels>,
4793 target_bounds: Bounds<Pixels>,
4794 max_target_bounds: Bounds<Pixels>,
4795 max_height: Pixels,
4796 must_place_above_or_below: bool,
4797 text_hitbox: &Hitbox,
4798 viewport_bounds: Bounds<Pixels>,
4799 window: &mut Window,
4800 cx: &mut App,
4801 ) -> Option<Bounds<Pixels>> {
4802 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
4803 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
4804 && !must_place_above_or_below
4805 {
4806 let max_width = cmp::min(
4807 available_within_viewport.right - px(1.),
4808 MENU_ASIDE_MAX_WIDTH,
4809 );
4810 let mut aside = self.render_context_menu_aside(
4811 size(max_width, max_height - POPOVER_Y_PADDING),
4812 window,
4813 cx,
4814 )?;
4815 let size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
4816 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
4817 Some((aside, right_position, size))
4818 } else {
4819 let max_size = size(
4820 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
4821 // won't be needed here.
4822 cmp::min(
4823 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
4824 viewport_bounds.right(),
4825 ),
4826 cmp::min(
4827 max_height,
4828 cmp::max(
4829 available_within_viewport.top,
4830 available_within_viewport.bottom,
4831 ),
4832 ) - POPOVER_Y_PADDING,
4833 );
4834 let mut aside = self.render_context_menu_aside(max_size, window, cx)?;
4835 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
4836
4837 let top_position = point(
4838 menu_bounds.origin.x,
4839 target_bounds.top() - actual_size.height,
4840 );
4841 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
4842
4843 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
4844 // Prefer to fit on the same side of the line as the menu, then on the other side of
4845 // the line.
4846 if !y_flipped && wanted.height < available.bottom {
4847 Some(bottom_position)
4848 } else if !y_flipped && wanted.height < available.top {
4849 Some(top_position)
4850 } else if y_flipped && wanted.height < available.top {
4851 Some(top_position)
4852 } else if y_flipped && wanted.height < available.bottom {
4853 Some(bottom_position)
4854 } else {
4855 None
4856 }
4857 };
4858
4859 // Prefer choosing a direction using max sizes rather than actual size for stability.
4860 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
4861 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
4862 let aside_position = fit_within(available_within_text, wanted)
4863 // Fallback: fit max size in window.
4864 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
4865 // Fallback: fit actual size in window.
4866 .or_else(|| fit_within(available_within_viewport, actual_size));
4867
4868 aside_position.map(|position| (aside, position, actual_size))
4869 };
4870
4871 // Skip drawing if it doesn't fit anywhere.
4872 if let Some((aside, position, size)) = positioned_aside {
4873 let aside_bounds = Bounds::new(position, size);
4874 window.defer_draw(aside, position, 2);
4875 return Some(aside_bounds);
4876 }
4877
4878 None
4879 }
4880
4881 fn render_context_menu(
4882 &self,
4883 line_height: Pixels,
4884 height: Pixels,
4885 window: &mut Window,
4886 cx: &mut App,
4887 ) -> Option<AnyElement> {
4888 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
4889 self.editor.update(cx, |editor, cx| {
4890 editor.render_context_menu(&self.style, max_height_in_lines, window, cx)
4891 })
4892 }
4893
4894 fn render_context_menu_aside(
4895 &self,
4896 max_size: Size<Pixels>,
4897 window: &mut Window,
4898 cx: &mut App,
4899 ) -> Option<AnyElement> {
4900 if max_size.width < px(100.) || max_size.height < px(12.) {
4901 None
4902 } else {
4903 self.editor.update(cx, |editor, cx| {
4904 editor.render_context_menu_aside(max_size, window, cx)
4905 })
4906 }
4907 }
4908
4909 fn layout_mouse_context_menu(
4910 &self,
4911 editor_snapshot: &EditorSnapshot,
4912 visible_range: Range<DisplayRow>,
4913 content_origin: gpui::Point<Pixels>,
4914 window: &mut Window,
4915 cx: &mut App,
4916 ) -> Option<AnyElement> {
4917 let position = self.editor.update(cx, |editor, _cx| {
4918 let visible_start_point = editor.display_to_pixel_point(
4919 DisplayPoint::new(visible_range.start, 0),
4920 editor_snapshot,
4921 window,
4922 )?;
4923 let visible_end_point = editor.display_to_pixel_point(
4924 DisplayPoint::new(visible_range.end, 0),
4925 editor_snapshot,
4926 window,
4927 )?;
4928
4929 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
4930 let (source_display_point, position) = match mouse_context_menu.position {
4931 MenuPosition::PinnedToScreen(point) => (None, point),
4932 MenuPosition::PinnedToEditor { source, offset } => {
4933 let source_display_point = source.to_display_point(editor_snapshot);
4934 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
4935 let position = content_origin + source_point + offset;
4936 (Some(source_display_point), position)
4937 }
4938 };
4939
4940 let source_included = source_display_point.is_none_or(|source_display_point| {
4941 visible_range
4942 .to_inclusive()
4943 .contains(&source_display_point.row())
4944 });
4945 let position_included =
4946 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
4947 if !source_included && !position_included {
4948 None
4949 } else {
4950 Some(position)
4951 }
4952 })?;
4953
4954 let text_style = TextStyleRefinement {
4955 line_height: Some(DefiniteLength::Fraction(
4956 BufferLineHeight::Comfortable.value(),
4957 )),
4958 ..Default::default()
4959 };
4960 window.with_text_style(Some(text_style), |window| {
4961 let mut element = self.editor.read_with(cx, |editor, _| {
4962 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
4963 let context_menu = mouse_context_menu.context_menu.clone();
4964
4965 Some(
4966 deferred(
4967 anchored()
4968 .position(position)
4969 .child(context_menu)
4970 .anchor(Corner::TopLeft)
4971 .snap_to_window_with_margin(px(8.)),
4972 )
4973 .with_priority(1)
4974 .into_any(),
4975 )
4976 })?;
4977
4978 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
4979 Some(element)
4980 })
4981 }
4982
4983 fn layout_hover_popovers(
4984 &self,
4985 snapshot: &EditorSnapshot,
4986 hitbox: &Hitbox,
4987 visible_display_row_range: Range<DisplayRow>,
4988 content_origin: gpui::Point<Pixels>,
4989 scroll_pixel_position: gpui::Point<Pixels>,
4990 line_layouts: &[LineWithInvisibles],
4991 line_height: Pixels,
4992 em_width: Pixels,
4993 context_menu_layout: Option<ContextMenuLayout>,
4994 window: &mut Window,
4995 cx: &mut App,
4996 ) {
4997 struct MeasuredHoverPopover {
4998 element: AnyElement,
4999 size: Size<Pixels>,
5000 horizontal_offset: Pixels,
5001 }
5002
5003 let max_size = size(
5004 (120. * em_width) // Default size
5005 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5006 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5007 (16. * line_height) // Default size
5008 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5009 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5010 );
5011
5012 let hover_popovers = self.editor.update(cx, |editor, cx| {
5013 editor.hover_state.render(
5014 snapshot,
5015 visible_display_row_range.clone(),
5016 max_size,
5017 window,
5018 cx,
5019 )
5020 });
5021 let Some((position, hover_popovers)) = hover_popovers else {
5022 return;
5023 };
5024
5025 // This is safe because we check on layout whether the required row is available
5026 let hovered_row_layout =
5027 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
5028
5029 // Compute Hovered Point
5030 let x =
5031 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
5032 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
5033 let hovered_point = content_origin + point(x, y);
5034
5035 let mut overall_height = Pixels::ZERO;
5036 let mut measured_hover_popovers = Vec::new();
5037 for (position, mut hover_popover) in hover_popovers.into_iter().with_position() {
5038 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
5039 let horizontal_offset =
5040 (hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
5041 .min(Pixels::ZERO);
5042 match position {
5043 itertools::Position::Middle | itertools::Position::Last => {
5044 overall_height += HOVER_POPOVER_GAP
5045 }
5046 _ => {}
5047 }
5048 overall_height += size.height;
5049 measured_hover_popovers.push(MeasuredHoverPopover {
5050 element: hover_popover,
5051 size,
5052 horizontal_offset,
5053 });
5054 }
5055
5056 fn draw_occluder(
5057 width: Pixels,
5058 origin: gpui::Point<Pixels>,
5059 window: &mut Window,
5060 cx: &mut App,
5061 ) {
5062 let mut occlusion = div()
5063 .size_full()
5064 .occlude()
5065 .on_mouse_move(|_, _, cx| cx.stop_propagation())
5066 .into_any_element();
5067 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
5068 window.defer_draw(occlusion, origin, 2);
5069 }
5070
5071 fn place_popovers_above(
5072 hovered_point: gpui::Point<Pixels>,
5073 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5074 window: &mut Window,
5075 cx: &mut App,
5076 ) {
5077 let mut current_y = hovered_point.y;
5078 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5079 let size = popover.size;
5080 let popover_origin = point(
5081 hovered_point.x + popover.horizontal_offset,
5082 current_y - size.height,
5083 );
5084
5085 window.defer_draw(popover.element, popover_origin, 2);
5086 if position != itertools::Position::Last {
5087 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
5088 draw_occluder(size.width, origin, window, cx);
5089 }
5090
5091 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5092 }
5093 }
5094
5095 fn place_popovers_below(
5096 hovered_point: gpui::Point<Pixels>,
5097 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5098 line_height: Pixels,
5099 window: &mut Window,
5100 cx: &mut App,
5101 ) {
5102 let mut current_y = hovered_point.y + line_height;
5103 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5104 let size = popover.size;
5105 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5106
5107 window.defer_draw(popover.element, popover_origin, 2);
5108 if position != itertools::Position::Last {
5109 let origin = point(popover_origin.x, popover_origin.y + size.height);
5110 draw_occluder(size.width, origin, window, cx);
5111 }
5112
5113 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5114 }
5115 }
5116
5117 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5118 context_menu_layout
5119 .as_ref()
5120 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5121 };
5122
5123 let can_place_above = {
5124 let mut bounds_above = Vec::new();
5125 let mut current_y = hovered_point.y;
5126 for popover in &measured_hover_popovers {
5127 let size = popover.size;
5128 let popover_origin = point(
5129 hovered_point.x + popover.horizontal_offset,
5130 current_y - size.height,
5131 );
5132 bounds_above.push(Bounds::new(popover_origin, size));
5133 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5134 }
5135 bounds_above
5136 .iter()
5137 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5138 };
5139
5140 let can_place_below = || {
5141 let mut bounds_below = Vec::new();
5142 let mut current_y = hovered_point.y + line_height;
5143 for popover in &measured_hover_popovers {
5144 let size = popover.size;
5145 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5146 bounds_below.push(Bounds::new(popover_origin, size));
5147 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5148 }
5149 bounds_below
5150 .iter()
5151 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5152 };
5153
5154 if can_place_above {
5155 // try placing above hovered point
5156 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5157 } else if can_place_below() {
5158 // try placing below hovered point
5159 place_popovers_below(
5160 hovered_point,
5161 measured_hover_popovers,
5162 line_height,
5163 window,
5164 cx,
5165 );
5166 } else {
5167 // try to place popovers around the context menu
5168 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5169 let total_width = measured_hover_popovers
5170 .iter()
5171 .map(|p| p.size.width)
5172 .max()
5173 .unwrap_or(Pixels::ZERO);
5174 let y_for_horizontal_positioning = if menu.y_flipped {
5175 menu.bounds.bottom() - overall_height
5176 } else {
5177 menu.bounds.top()
5178 };
5179 let possible_origins = vec![
5180 // left of context menu
5181 point(
5182 menu.bounds.left() - total_width - HOVER_POPOVER_GAP,
5183 y_for_horizontal_positioning,
5184 ),
5185 // right of context menu
5186 point(
5187 menu.bounds.right() + HOVER_POPOVER_GAP,
5188 y_for_horizontal_positioning,
5189 ),
5190 // top of context menu
5191 point(
5192 menu.bounds.left(),
5193 menu.bounds.top() - overall_height - HOVER_POPOVER_GAP,
5194 ),
5195 // bottom of context menu
5196 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5197 ];
5198 possible_origins.into_iter().find(|&origin| {
5199 Bounds::new(origin, size(total_width, overall_height))
5200 .is_contained_within(hitbox)
5201 })
5202 });
5203 if let Some(origin) = origin_surrounding_menu {
5204 let mut current_y = origin.y;
5205 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5206 let size = popover.size;
5207 let popover_origin = point(origin.x, current_y);
5208
5209 window.defer_draw(popover.element, popover_origin, 2);
5210 if position != itertools::Position::Last {
5211 let origin = point(popover_origin.x, popover_origin.y + size.height);
5212 draw_occluder(size.width, origin, window, cx);
5213 }
5214
5215 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5216 }
5217 } else {
5218 // fallback to existing above/below cursor logic
5219 // this might overlap menu or overflow in rare case
5220 if can_place_above {
5221 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5222 } else {
5223 place_popovers_below(
5224 hovered_point,
5225 measured_hover_popovers,
5226 line_height,
5227 window,
5228 cx,
5229 );
5230 }
5231 }
5232 }
5233 }
5234
5235 fn layout_diff_hunk_controls(
5236 &self,
5237 row_range: Range<DisplayRow>,
5238 row_infos: &[RowInfo],
5239 text_hitbox: &Hitbox,
5240 newest_cursor_position: Option<DisplayPoint>,
5241 line_height: Pixels,
5242 right_margin: Pixels,
5243 scroll_pixel_position: gpui::Point<Pixels>,
5244 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5245 highlighted_rows: &BTreeMap<DisplayRow, LineHighlight>,
5246 editor: Entity<Editor>,
5247 window: &mut Window,
5248 cx: &mut App,
5249 ) -> (Vec<AnyElement>, Vec<(DisplayRow, Bounds<Pixels>)>) {
5250 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
5251 let hovered_diff_hunk_row = editor.read(cx).hovered_diff_hunk_row;
5252
5253 let mut controls = vec![];
5254 let mut control_bounds = vec![];
5255
5256 let active_positions = [
5257 hovered_diff_hunk_row.map(|row| DisplayPoint::new(row, 0)),
5258 newest_cursor_position,
5259 ];
5260
5261 for (hunk, _) in display_hunks {
5262 if let DisplayDiffHunk::Unfolded {
5263 display_row_range,
5264 multi_buffer_range,
5265 status,
5266 is_created_file,
5267 ..
5268 } = &hunk
5269 {
5270 if display_row_range.start < row_range.start
5271 || display_row_range.start >= row_range.end
5272 {
5273 continue;
5274 }
5275 if highlighted_rows
5276 .get(&display_row_range.start)
5277 .and_then(|highlight| highlight.type_id)
5278 .is_some_and(|type_id| {
5279 [
5280 TypeId::of::<ConflictsOuter>(),
5281 TypeId::of::<ConflictsOursMarker>(),
5282 TypeId::of::<ConflictsOurs>(),
5283 TypeId::of::<ConflictsTheirs>(),
5284 TypeId::of::<ConflictsTheirsMarker>(),
5285 ]
5286 .contains(&type_id)
5287 })
5288 {
5289 continue;
5290 }
5291 let row_ix = (display_row_range.start - row_range.start).0 as usize;
5292 if row_infos[row_ix].diff_status.is_none() {
5293 continue;
5294 }
5295 if row_infos[row_ix]
5296 .diff_status
5297 .is_some_and(|status| status.is_added())
5298 && !status.is_added()
5299 {
5300 continue;
5301 }
5302
5303 if active_positions
5304 .iter()
5305 .any(|p| p.is_some_and(|p| display_row_range.contains(&p.row())))
5306 {
5307 let y = display_row_range.start.as_f32() * line_height
5308 + text_hitbox.bounds.top()
5309 - scroll_pixel_position.y;
5310
5311 let mut element = render_diff_hunk_controls(
5312 display_row_range.start.0,
5313 status,
5314 multi_buffer_range.clone(),
5315 *is_created_file,
5316 line_height,
5317 &editor,
5318 window,
5319 cx,
5320 );
5321 let size =
5322 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
5323
5324 let x = text_hitbox.bounds.right() - right_margin - px(10.) - size.width;
5325
5326 let bounds = Bounds::new(gpui::Point::new(x, y), size);
5327 control_bounds.push((display_row_range.start, bounds));
5328
5329 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
5330 element.prepaint(window, cx)
5331 });
5332 controls.push(element);
5333 }
5334 }
5335 }
5336
5337 (controls, control_bounds)
5338 }
5339
5340 fn layout_signature_help(
5341 &self,
5342 hitbox: &Hitbox,
5343 content_origin: gpui::Point<Pixels>,
5344 scroll_pixel_position: gpui::Point<Pixels>,
5345 newest_selection_head: Option<DisplayPoint>,
5346 start_row: DisplayRow,
5347 line_layouts: &[LineWithInvisibles],
5348 line_height: Pixels,
5349 em_width: Pixels,
5350 context_menu_layout: Option<ContextMenuLayout>,
5351 window: &mut Window,
5352 cx: &mut App,
5353 ) {
5354 if !self.editor.focus_handle(cx).is_focused(window) {
5355 return;
5356 }
5357 let Some(newest_selection_head) = newest_selection_head else {
5358 return;
5359 };
5360
5361 let max_size = size(
5362 (120. * em_width) // Default size
5363 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5364 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5365 (16. * line_height) // Default size
5366 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5367 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5368 );
5369
5370 let maybe_element = self.editor.update(cx, |editor, cx| {
5371 if let Some(popover) = editor.signature_help_state.popover_mut() {
5372 let element = popover.render(max_size, window, cx);
5373 Some(element)
5374 } else {
5375 None
5376 }
5377 });
5378 let Some(mut element) = maybe_element else {
5379 return;
5380 };
5381
5382 let selection_row = newest_selection_head.row();
5383 let Some(cursor_row_layout) = (selection_row >= start_row)
5384 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
5385 .flatten()
5386 else {
5387 return;
5388 };
5389
5390 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
5391 - scroll_pixel_position.x;
5392 let target_y = selection_row.as_f32() * line_height - scroll_pixel_position.y;
5393 let target_point = content_origin + point(target_x, target_y);
5394
5395 let actual_size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
5396
5397 let (popover_bounds_above, popover_bounds_below) = {
5398 let horizontal_offset = (hitbox.top_right().x
5399 - POPOVER_RIGHT_OFFSET
5400 - (target_point.x + actual_size.width))
5401 .min(Pixels::ZERO);
5402 let initial_x = target_point.x + horizontal_offset;
5403 (
5404 Bounds::new(
5405 point(initial_x, target_point.y - actual_size.height),
5406 actual_size,
5407 ),
5408 Bounds::new(
5409 point(initial_x, target_point.y + line_height + HOVER_POPOVER_GAP),
5410 actual_size,
5411 ),
5412 )
5413 };
5414
5415 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5416 context_menu_layout
5417 .as_ref()
5418 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5419 };
5420
5421 let final_origin = if popover_bounds_above.is_contained_within(hitbox)
5422 && !intersects_menu(popover_bounds_above)
5423 {
5424 // try placing above cursor
5425 popover_bounds_above.origin
5426 } else if popover_bounds_below.is_contained_within(hitbox)
5427 && !intersects_menu(popover_bounds_below)
5428 {
5429 // try placing below cursor
5430 popover_bounds_below.origin
5431 } else {
5432 // try surrounding context menu if exists
5433 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5434 let y_for_horizontal_positioning = if menu.y_flipped {
5435 menu.bounds.bottom() - actual_size.height
5436 } else {
5437 menu.bounds.top()
5438 };
5439 let possible_origins = vec![
5440 // left of context menu
5441 point(
5442 menu.bounds.left() - actual_size.width - HOVER_POPOVER_GAP,
5443 y_for_horizontal_positioning,
5444 ),
5445 // right of context menu
5446 point(
5447 menu.bounds.right() + HOVER_POPOVER_GAP,
5448 y_for_horizontal_positioning,
5449 ),
5450 // top of context menu
5451 point(
5452 menu.bounds.left(),
5453 menu.bounds.top() - actual_size.height - HOVER_POPOVER_GAP,
5454 ),
5455 // bottom of context menu
5456 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5457 ];
5458 possible_origins
5459 .into_iter()
5460 .find(|&origin| Bounds::new(origin, actual_size).is_contained_within(hitbox))
5461 });
5462 origin_surrounding_menu.unwrap_or_else(|| {
5463 // fallback to existing above/below cursor logic
5464 // this might overlap menu or overflow in rare case
5465 if popover_bounds_above.is_contained_within(hitbox) {
5466 popover_bounds_above.origin
5467 } else {
5468 popover_bounds_below.origin
5469 }
5470 })
5471 };
5472
5473 window.defer_draw(element, final_origin, 2);
5474 }
5475
5476 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5477 window.paint_layer(layout.hitbox.bounds, |window| {
5478 let scroll_top = layout.position_map.snapshot.scroll_position().y;
5479 let gutter_bg = cx.theme().colors().editor_gutter_background;
5480 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
5481 window.paint_quad(fill(
5482 layout.position_map.text_hitbox.bounds,
5483 self.style.background,
5484 ));
5485
5486 if matches!(
5487 layout.mode,
5488 EditorMode::Full { .. } | EditorMode::Minimap { .. }
5489 ) {
5490 let show_active_line_background = match layout.mode {
5491 EditorMode::Full {
5492 show_active_line_background,
5493 ..
5494 } => show_active_line_background,
5495 EditorMode::Minimap { .. } => true,
5496 _ => false,
5497 };
5498 let mut active_rows = layout.active_rows.iter().peekable();
5499 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
5500 let mut end_row = start_row.0;
5501 while active_rows
5502 .peek()
5503 .is_some_and(|(active_row, has_selection)| {
5504 active_row.0 == end_row + 1
5505 && has_selection.selection == contains_non_empty_selection.selection
5506 })
5507 {
5508 active_rows.next().unwrap();
5509 end_row += 1;
5510 }
5511
5512 if show_active_line_background && !contains_non_empty_selection.selection {
5513 let highlight_h_range =
5514 match layout.position_map.snapshot.current_line_highlight {
5515 CurrentLineHighlight::Gutter => Some(Range {
5516 start: layout.hitbox.left(),
5517 end: layout.gutter_hitbox.right(),
5518 }),
5519 CurrentLineHighlight::Line => Some(Range {
5520 start: layout.position_map.text_hitbox.bounds.left(),
5521 end: layout.position_map.text_hitbox.bounds.right(),
5522 }),
5523 CurrentLineHighlight::All => Some(Range {
5524 start: layout.hitbox.left(),
5525 end: layout.hitbox.right(),
5526 }),
5527 CurrentLineHighlight::None => None,
5528 };
5529 if let Some(range) = highlight_h_range {
5530 let active_line_bg = cx.theme().colors().editor_active_line_background;
5531 let bounds = Bounds {
5532 origin: point(
5533 range.start,
5534 layout.hitbox.origin.y
5535 + (start_row.as_f32() - scroll_top)
5536 * layout.position_map.line_height,
5537 ),
5538 size: size(
5539 range.end - range.start,
5540 layout.position_map.line_height
5541 * (end_row - start_row.0 + 1) as f32,
5542 ),
5543 };
5544 window.paint_quad(fill(bounds, active_line_bg));
5545 }
5546 }
5547 }
5548
5549 let mut paint_highlight = |highlight_row_start: DisplayRow,
5550 highlight_row_end: DisplayRow,
5551 highlight: crate::LineHighlight,
5552 edges| {
5553 let mut origin_x = layout.hitbox.left();
5554 let mut width = layout.hitbox.size.width;
5555 if !highlight.include_gutter {
5556 origin_x += layout.gutter_hitbox.size.width;
5557 width -= layout.gutter_hitbox.size.width;
5558 }
5559
5560 let origin = point(
5561 origin_x,
5562 layout.hitbox.origin.y
5563 + (highlight_row_start.as_f32() - scroll_top)
5564 * layout.position_map.line_height,
5565 );
5566 let size = size(
5567 width,
5568 layout.position_map.line_height
5569 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
5570 );
5571 let mut quad = fill(Bounds { origin, size }, highlight.background);
5572 if let Some(border_color) = highlight.border {
5573 quad.border_color = border_color;
5574 quad.border_widths = edges
5575 }
5576 window.paint_quad(quad);
5577 };
5578
5579 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
5580 None;
5581 for (&new_row, &new_background) in &layout.highlighted_rows {
5582 match &mut current_paint {
5583 &mut Some((current_background, ref mut current_range, mut edges)) => {
5584 let new_range_started = current_background != new_background
5585 || current_range.end.next_row() != new_row;
5586 if new_range_started {
5587 if current_range.end.next_row() == new_row {
5588 edges.bottom = px(0.);
5589 };
5590 paint_highlight(
5591 current_range.start,
5592 current_range.end,
5593 current_background,
5594 edges,
5595 );
5596 let edges = Edges {
5597 top: if current_range.end.next_row() != new_row {
5598 px(1.)
5599 } else {
5600 px(0.)
5601 },
5602 bottom: px(1.),
5603 ..Default::default()
5604 };
5605 current_paint = Some((new_background, new_row..new_row, edges));
5606 continue;
5607 } else {
5608 current_range.end = current_range.end.next_row();
5609 }
5610 }
5611 None => {
5612 let edges = Edges {
5613 top: px(1.),
5614 bottom: px(1.),
5615 ..Default::default()
5616 };
5617 current_paint = Some((new_background, new_row..new_row, edges))
5618 }
5619 };
5620 }
5621 if let Some((color, range, edges)) = current_paint {
5622 paint_highlight(range.start, range.end, color, edges);
5623 }
5624
5625 for (guide_x, active) in layout.wrap_guides.iter() {
5626 let color = if *active {
5627 cx.theme().colors().editor_active_wrap_guide
5628 } else {
5629 cx.theme().colors().editor_wrap_guide
5630 };
5631 window.paint_quad(fill(
5632 Bounds {
5633 origin: point(*guide_x, layout.position_map.text_hitbox.origin.y),
5634 size: size(px(1.), layout.position_map.text_hitbox.size.height),
5635 },
5636 color,
5637 ));
5638 }
5639 }
5640 })
5641 }
5642
5643 fn paint_indent_guides(
5644 &mut self,
5645 layout: &mut EditorLayout,
5646 window: &mut Window,
5647 cx: &mut App,
5648 ) {
5649 let Some(indent_guides) = &layout.indent_guides else {
5650 return;
5651 };
5652
5653 let faded_color = |color: Hsla, alpha: f32| {
5654 let mut faded = color;
5655 faded.a = alpha;
5656 faded
5657 };
5658
5659 for indent_guide in indent_guides {
5660 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
5661 let settings = &indent_guide.settings;
5662
5663 // TODO fixed for now, expose them through themes later
5664 const INDENT_AWARE_ALPHA: f32 = 0.2;
5665 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
5666 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
5667 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
5668
5669 let line_color = match (settings.coloring, indent_guide.active) {
5670 (IndentGuideColoring::Disabled, _) => None,
5671 (IndentGuideColoring::Fixed, false) => {
5672 Some(cx.theme().colors().editor_indent_guide)
5673 }
5674 (IndentGuideColoring::Fixed, true) => {
5675 Some(cx.theme().colors().editor_indent_guide_active)
5676 }
5677 (IndentGuideColoring::IndentAware, false) => {
5678 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
5679 }
5680 (IndentGuideColoring::IndentAware, true) => {
5681 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
5682 }
5683 };
5684
5685 let background_color = match (settings.background_coloring, indent_guide.active) {
5686 (IndentGuideBackgroundColoring::Disabled, _) => None,
5687 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
5688 indent_accent_colors,
5689 INDENT_AWARE_BACKGROUND_ALPHA,
5690 )),
5691 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
5692 indent_accent_colors,
5693 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
5694 )),
5695 };
5696
5697 let requested_line_width = if indent_guide.active {
5698 settings.active_line_width
5699 } else {
5700 settings.line_width
5701 }
5702 .clamp(1, 10);
5703 let mut line_indicator_width = 0.;
5704 if let Some(color) = line_color {
5705 window.paint_quad(fill(
5706 Bounds {
5707 origin: indent_guide.origin,
5708 size: size(px(requested_line_width as f32), indent_guide.length),
5709 },
5710 color,
5711 ));
5712 line_indicator_width = requested_line_width as f32;
5713 }
5714
5715 if let Some(color) = background_color {
5716 let width = indent_guide.single_indent_width - px(line_indicator_width);
5717 window.paint_quad(fill(
5718 Bounds {
5719 origin: point(
5720 indent_guide.origin.x + px(line_indicator_width),
5721 indent_guide.origin.y,
5722 ),
5723 size: size(width, indent_guide.length),
5724 },
5725 color,
5726 ));
5727 }
5728 }
5729 }
5730
5731 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5732 let is_singleton = self.editor.read(cx).is_singleton(cx);
5733
5734 let line_height = layout.position_map.line_height;
5735 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
5736
5737 for LineNumberLayout {
5738 shaped_line,
5739 hitbox,
5740 } in layout.line_numbers.values()
5741 {
5742 let Some(hitbox) = hitbox else {
5743 continue;
5744 };
5745
5746 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
5747 let color = cx.theme().colors().editor_hover_line_number;
5748
5749 let line = self.shape_line_number(shaped_line.text.clone(), color, window);
5750 line.paint(hitbox.origin, line_height, window, cx).log_err()
5751 } else {
5752 shaped_line
5753 .paint(hitbox.origin, line_height, window, cx)
5754 .log_err()
5755 }) else {
5756 continue;
5757 };
5758
5759 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
5760 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
5761 if is_singleton {
5762 window.set_cursor_style(CursorStyle::IBeam, hitbox);
5763 } else {
5764 window.set_cursor_style(CursorStyle::PointingHand, hitbox);
5765 }
5766 }
5767 }
5768
5769 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5770 if layout.display_hunks.is_empty() {
5771 return;
5772 }
5773
5774 let line_height = layout.position_map.line_height;
5775 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5776 for (hunk, hitbox) in &layout.display_hunks {
5777 let hunk_to_paint = match hunk {
5778 DisplayDiffHunk::Folded { .. } => {
5779 let hunk_bounds = Self::diff_hunk_bounds(
5780 &layout.position_map.snapshot,
5781 line_height,
5782 layout.gutter_hitbox.bounds,
5783 hunk,
5784 );
5785 Some((
5786 hunk_bounds,
5787 cx.theme().colors().version_control_modified,
5788 Corners::all(px(0.)),
5789 DiffHunkStatus::modified_none(),
5790 ))
5791 }
5792 DisplayDiffHunk::Unfolded {
5793 status,
5794 display_row_range,
5795 ..
5796 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
5797 DiffHunkStatusKind::Added => (
5798 hunk_hitbox.bounds,
5799 cx.theme().colors().version_control_added,
5800 Corners::all(px(0.)),
5801 *status,
5802 ),
5803 DiffHunkStatusKind::Modified => (
5804 hunk_hitbox.bounds,
5805 cx.theme().colors().version_control_modified,
5806 Corners::all(px(0.)),
5807 *status,
5808 ),
5809 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
5810 hunk_hitbox.bounds,
5811 cx.theme().colors().version_control_deleted,
5812 Corners::all(px(0.)),
5813 *status,
5814 ),
5815 DiffHunkStatusKind::Deleted => (
5816 Bounds::new(
5817 point(
5818 hunk_hitbox.origin.x - hunk_hitbox.size.width,
5819 hunk_hitbox.origin.y,
5820 ),
5821 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
5822 ),
5823 cx.theme().colors().version_control_deleted,
5824 Corners::all(1. * line_height),
5825 *status,
5826 ),
5827 }),
5828 };
5829
5830 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
5831 // Flatten the background color with the editor color to prevent
5832 // elements below transparent hunks from showing through
5833 let flattened_background_color = cx
5834 .theme()
5835 .colors()
5836 .editor_background
5837 .blend(background_color);
5838
5839 if !Self::diff_hunk_hollow(status, cx) {
5840 window.paint_quad(quad(
5841 hunk_bounds,
5842 corner_radii,
5843 flattened_background_color,
5844 Edges::default(),
5845 transparent_black(),
5846 BorderStyle::default(),
5847 ));
5848 } else {
5849 let flattened_unstaged_background_color = cx
5850 .theme()
5851 .colors()
5852 .editor_background
5853 .blend(background_color.opacity(0.3));
5854
5855 window.paint_quad(quad(
5856 hunk_bounds,
5857 corner_radii,
5858 flattened_unstaged_background_color,
5859 Edges::all(Pixels(1.0)),
5860 flattened_background_color,
5861 BorderStyle::Solid,
5862 ));
5863 }
5864 }
5865 }
5866 });
5867 }
5868
5869 fn gutter_strip_width(line_height: Pixels) -> Pixels {
5870 (0.275 * line_height).floor()
5871 }
5872
5873 fn diff_hunk_bounds(
5874 snapshot: &EditorSnapshot,
5875 line_height: Pixels,
5876 gutter_bounds: Bounds<Pixels>,
5877 hunk: &DisplayDiffHunk,
5878 ) -> Bounds<Pixels> {
5879 let scroll_position = snapshot.scroll_position();
5880 let scroll_top = scroll_position.y * line_height;
5881 let gutter_strip_width = Self::gutter_strip_width(line_height);
5882
5883 match hunk {
5884 DisplayDiffHunk::Folded { display_row, .. } => {
5885 let start_y = display_row.as_f32() * line_height - scroll_top;
5886 let end_y = start_y + line_height;
5887 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5888 let highlight_size = size(gutter_strip_width, end_y - start_y);
5889 Bounds::new(highlight_origin, highlight_size)
5890 }
5891 DisplayDiffHunk::Unfolded {
5892 display_row_range,
5893 status,
5894 ..
5895 } => {
5896 if status.is_deleted() && display_row_range.is_empty() {
5897 let row = display_row_range.start;
5898
5899 let offset = line_height / 2.;
5900 let start_y = row.as_f32() * line_height - offset - scroll_top;
5901 let end_y = start_y + line_height;
5902
5903 let width = (0.35 * line_height).floor();
5904 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5905 let highlight_size = size(width, end_y - start_y);
5906 Bounds::new(highlight_origin, highlight_size)
5907 } else {
5908 let start_row = display_row_range.start;
5909 let end_row = display_row_range.end;
5910 // If we're in a multibuffer, row range span might include an
5911 // excerpt header, so if we were to draw the marker straight away,
5912 // the hunk might include the rows of that header.
5913 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
5914 // Instead, we simply check whether the range we're dealing with includes
5915 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
5916 let end_row_in_current_excerpt = snapshot
5917 .blocks_in_range(start_row..end_row)
5918 .find_map(|(start_row, block)| {
5919 if matches!(
5920 block,
5921 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
5922 ) {
5923 Some(start_row)
5924 } else {
5925 None
5926 }
5927 })
5928 .unwrap_or(end_row);
5929
5930 let start_y = start_row.as_f32() * line_height - scroll_top;
5931 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
5932
5933 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5934 let highlight_size = size(gutter_strip_width, end_y - start_y);
5935 Bounds::new(highlight_origin, highlight_size)
5936 }
5937 }
5938 }
5939 }
5940
5941 fn paint_gutter_indicators(
5942 &self,
5943 layout: &mut EditorLayout,
5944 window: &mut Window,
5945 cx: &mut App,
5946 ) {
5947 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5948 window.with_element_namespace("crease_toggles", |window| {
5949 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
5950 crease_toggle.paint(window, cx);
5951 }
5952 });
5953
5954 window.with_element_namespace("expand_toggles", |window| {
5955 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
5956 expand_toggle.paint(window, cx);
5957 }
5958 });
5959
5960 for breakpoint in layout.breakpoints.iter_mut() {
5961 breakpoint.paint(window, cx);
5962 }
5963
5964 for test_indicator in layout.test_indicators.iter_mut() {
5965 test_indicator.paint(window, cx);
5966 }
5967 });
5968 }
5969
5970 fn paint_gutter_highlights(
5971 &self,
5972 layout: &mut EditorLayout,
5973 window: &mut Window,
5974 cx: &mut App,
5975 ) {
5976 for (_, hunk_hitbox) in &layout.display_hunks {
5977 if let Some(hunk_hitbox) = hunk_hitbox
5978 && !self
5979 .editor
5980 .read(cx)
5981 .buffer()
5982 .read(cx)
5983 .all_diff_hunks_expanded()
5984 {
5985 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
5986 }
5987 }
5988
5989 let show_git_gutter = layout
5990 .position_map
5991 .snapshot
5992 .show_git_diff_gutter
5993 .unwrap_or_else(|| {
5994 matches!(
5995 ProjectSettings::get_global(cx).git.git_gutter,
5996 GitGutterSetting::TrackedFiles
5997 )
5998 });
5999 if show_git_gutter {
6000 Self::paint_gutter_diff_hunks(layout, window, cx)
6001 }
6002
6003 let highlight_width = 0.275 * layout.position_map.line_height;
6004 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
6005 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6006 for (range, color) in &layout.highlighted_gutter_ranges {
6007 let start_row = if range.start.row() < layout.visible_display_row_range.start {
6008 layout.visible_display_row_range.start - DisplayRow(1)
6009 } else {
6010 range.start.row()
6011 };
6012 let end_row = if range.end.row() > layout.visible_display_row_range.end {
6013 layout.visible_display_row_range.end + DisplayRow(1)
6014 } else {
6015 range.end.row()
6016 };
6017
6018 let start_y = layout.gutter_hitbox.top()
6019 + start_row.0 as f32 * layout.position_map.line_height
6020 - layout.position_map.scroll_pixel_position.y;
6021 let end_y = layout.gutter_hitbox.top()
6022 + (end_row.0 + 1) as f32 * layout.position_map.line_height
6023 - layout.position_map.scroll_pixel_position.y;
6024 let bounds = Bounds::from_corners(
6025 point(layout.gutter_hitbox.left(), start_y),
6026 point(layout.gutter_hitbox.left() + highlight_width, end_y),
6027 );
6028 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
6029 }
6030 });
6031 }
6032
6033 fn paint_blamed_display_rows(
6034 &self,
6035 layout: &mut EditorLayout,
6036 window: &mut Window,
6037 cx: &mut App,
6038 ) {
6039 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
6040 return;
6041 };
6042
6043 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6044 for mut blame_element in blamed_display_rows.into_iter() {
6045 blame_element.paint(window, cx);
6046 }
6047 })
6048 }
6049
6050 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6051 window.with_content_mask(
6052 Some(ContentMask {
6053 bounds: layout.position_map.text_hitbox.bounds,
6054 }),
6055 |window| {
6056 let editor = self.editor.read(cx);
6057 if editor.mouse_cursor_hidden {
6058 window.set_window_cursor_style(CursorStyle::None);
6059 } else if let SelectionDragState::ReadyToDrag {
6060 mouse_down_time, ..
6061 } = &editor.selection_drag_state
6062 {
6063 let drag_and_drop_delay = Duration::from_millis(
6064 EditorSettings::get_global(cx).drag_and_drop_selection.delay,
6065 );
6066 if mouse_down_time.elapsed() >= drag_and_drop_delay {
6067 window.set_cursor_style(
6068 CursorStyle::DragCopy,
6069 &layout.position_map.text_hitbox,
6070 );
6071 }
6072 } else if matches!(
6073 editor.selection_drag_state,
6074 SelectionDragState::Dragging { .. }
6075 ) {
6076 window
6077 .set_cursor_style(CursorStyle::DragCopy, &layout.position_map.text_hitbox);
6078 } else if editor
6079 .hovered_link_state
6080 .as_ref()
6081 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
6082 {
6083 window.set_cursor_style(
6084 CursorStyle::PointingHand,
6085 &layout.position_map.text_hitbox,
6086 );
6087 } else {
6088 window.set_cursor_style(CursorStyle::IBeam, &layout.position_map.text_hitbox);
6089 };
6090
6091 self.paint_lines_background(layout, window, cx);
6092 let invisible_display_ranges = self.paint_highlights(layout, window, cx);
6093 self.paint_document_colors(layout, window);
6094 self.paint_lines(&invisible_display_ranges, layout, window, cx);
6095 self.paint_redactions(layout, window);
6096 self.paint_cursors(layout, window, cx);
6097 self.paint_inline_diagnostics(layout, window, cx);
6098 self.paint_inline_blame(layout, window, cx);
6099 self.paint_inline_code_actions(layout, window, cx);
6100 self.paint_diff_hunk_controls(layout, window, cx);
6101 window.with_element_namespace("crease_trailers", |window| {
6102 for trailer in layout.crease_trailers.iter_mut().flatten() {
6103 trailer.element.paint(window, cx);
6104 }
6105 });
6106 },
6107 )
6108 }
6109
6110 fn paint_highlights(
6111 &mut self,
6112 layout: &mut EditorLayout,
6113 window: &mut Window,
6114 cx: &mut App,
6115 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
6116 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6117 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
6118 let line_end_overshoot = 0.15 * layout.position_map.line_height;
6119 for (range, color) in &layout.highlighted_ranges {
6120 self.paint_highlighted_range(
6121 range.clone(),
6122 true,
6123 *color,
6124 Pixels::ZERO,
6125 line_end_overshoot,
6126 layout,
6127 window,
6128 );
6129 }
6130
6131 let corner_radius = if EditorSettings::get_global(cx).rounded_selection {
6132 0.15 * layout.position_map.line_height
6133 } else {
6134 Pixels::ZERO
6135 };
6136
6137 for (player_color, selections) in &layout.selections {
6138 for selection in selections.iter() {
6139 self.paint_highlighted_range(
6140 selection.range.clone(),
6141 true,
6142 player_color.selection,
6143 corner_radius,
6144 corner_radius * 2.,
6145 layout,
6146 window,
6147 );
6148
6149 if selection.is_local && !selection.range.is_empty() {
6150 invisible_display_ranges.push(selection.range.clone());
6151 }
6152 }
6153 }
6154 invisible_display_ranges
6155 })
6156 }
6157
6158 fn paint_lines(
6159 &mut self,
6160 invisible_display_ranges: &[Range<DisplayPoint>],
6161 layout: &mut EditorLayout,
6162 window: &mut Window,
6163 cx: &mut App,
6164 ) {
6165 let whitespace_setting = self
6166 .editor
6167 .read(cx)
6168 .buffer
6169 .read(cx)
6170 .language_settings(cx)
6171 .show_whitespaces;
6172
6173 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6174 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6175 line_with_invisibles.draw(
6176 layout,
6177 row,
6178 layout.content_origin,
6179 whitespace_setting,
6180 invisible_display_ranges,
6181 window,
6182 cx,
6183 )
6184 }
6185
6186 for line_element in &mut layout.line_elements {
6187 line_element.paint(window, cx);
6188 }
6189 }
6190
6191 fn paint_lines_background(
6192 &mut self,
6193 layout: &mut EditorLayout,
6194 window: &mut Window,
6195 cx: &mut App,
6196 ) {
6197 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6198 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6199 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
6200 }
6201 }
6202
6203 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
6204 if layout.redacted_ranges.is_empty() {
6205 return;
6206 }
6207
6208 let line_end_overshoot = layout.line_end_overshoot();
6209
6210 // A softer than perfect black
6211 let redaction_color = gpui::rgb(0x0e1111);
6212
6213 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6214 for range in layout.redacted_ranges.iter() {
6215 self.paint_highlighted_range(
6216 range.clone(),
6217 true,
6218 redaction_color.into(),
6219 Pixels::ZERO,
6220 line_end_overshoot,
6221 layout,
6222 window,
6223 );
6224 }
6225 });
6226 }
6227
6228 fn paint_document_colors(&self, layout: &mut EditorLayout, window: &mut Window) {
6229 let Some((colors_render_mode, image_colors)) = &layout.document_colors else {
6230 return;
6231 };
6232 if image_colors.is_empty()
6233 || colors_render_mode == &DocumentColorsRenderMode::None
6234 || colors_render_mode == &DocumentColorsRenderMode::Inlay
6235 {
6236 return;
6237 }
6238
6239 let line_end_overshoot = layout.line_end_overshoot();
6240
6241 for (range, color) in image_colors {
6242 match colors_render_mode {
6243 DocumentColorsRenderMode::Inlay | DocumentColorsRenderMode::None => return,
6244 DocumentColorsRenderMode::Background => {
6245 self.paint_highlighted_range(
6246 range.clone(),
6247 true,
6248 *color,
6249 Pixels::ZERO,
6250 line_end_overshoot,
6251 layout,
6252 window,
6253 );
6254 }
6255 DocumentColorsRenderMode::Border => {
6256 self.paint_highlighted_range(
6257 range.clone(),
6258 false,
6259 *color,
6260 Pixels::ZERO,
6261 line_end_overshoot,
6262 layout,
6263 window,
6264 );
6265 }
6266 }
6267 }
6268 }
6269
6270 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6271 for cursor in &mut layout.visible_cursors {
6272 cursor.paint(layout.content_origin, window, cx);
6273 }
6274 }
6275
6276 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6277 let Some(scrollbars_layout) = layout.scrollbars_layout.take() else {
6278 return;
6279 };
6280 let any_scrollbar_dragged = self.editor.read(cx).scroll_manager.any_scrollbar_dragged();
6281
6282 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
6283 let hitbox = &scrollbar_layout.hitbox;
6284 if scrollbars_layout.visible {
6285 let scrollbar_edges = match axis {
6286 ScrollbarAxis::Horizontal => Edges {
6287 top: Pixels::ZERO,
6288 right: Pixels::ZERO,
6289 bottom: Pixels::ZERO,
6290 left: Pixels::ZERO,
6291 },
6292 ScrollbarAxis::Vertical => Edges {
6293 top: Pixels::ZERO,
6294 right: Pixels::ZERO,
6295 bottom: Pixels::ZERO,
6296 left: ScrollbarLayout::BORDER_WIDTH,
6297 },
6298 };
6299
6300 window.paint_layer(hitbox.bounds, |window| {
6301 window.paint_quad(quad(
6302 hitbox.bounds,
6303 Corners::default(),
6304 cx.theme().colors().scrollbar_track_background,
6305 scrollbar_edges,
6306 cx.theme().colors().scrollbar_track_border,
6307 BorderStyle::Solid,
6308 ));
6309
6310 if axis == ScrollbarAxis::Vertical {
6311 let fast_markers =
6312 self.collect_fast_scrollbar_markers(layout, scrollbar_layout, cx);
6313 // Refresh slow scrollbar markers in the background. Below, we
6314 // paint whatever markers have already been computed.
6315 self.refresh_slow_scrollbar_markers(layout, scrollbar_layout, window, cx);
6316
6317 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
6318 for marker in markers.iter().chain(&fast_markers) {
6319 let mut marker = marker.clone();
6320 marker.bounds.origin += hitbox.origin;
6321 window.paint_quad(marker);
6322 }
6323 }
6324
6325 if let Some(thumb_bounds) = scrollbar_layout.thumb_bounds {
6326 let scrollbar_thumb_color = match scrollbar_layout.thumb_state {
6327 ScrollbarThumbState::Dragging => {
6328 cx.theme().colors().scrollbar_thumb_active_background
6329 }
6330 ScrollbarThumbState::Hovered => {
6331 cx.theme().colors().scrollbar_thumb_hover_background
6332 }
6333 ScrollbarThumbState::Idle => {
6334 cx.theme().colors().scrollbar_thumb_background
6335 }
6336 };
6337 window.paint_quad(quad(
6338 thumb_bounds,
6339 Corners::default(),
6340 scrollbar_thumb_color,
6341 scrollbar_edges,
6342 cx.theme().colors().scrollbar_thumb_border,
6343 BorderStyle::Solid,
6344 ));
6345
6346 if any_scrollbar_dragged {
6347 window.set_window_cursor_style(CursorStyle::Arrow);
6348 } else {
6349 window.set_cursor_style(CursorStyle::Arrow, hitbox);
6350 }
6351 }
6352 })
6353 }
6354 }
6355
6356 window.on_mouse_event({
6357 let editor = self.editor.clone();
6358 let scrollbars_layout = scrollbars_layout.clone();
6359
6360 let mut mouse_position = window.mouse_position();
6361 move |event: &MouseMoveEvent, phase, window, cx| {
6362 if phase == DispatchPhase::Capture {
6363 return;
6364 }
6365
6366 editor.update(cx, |editor, cx| {
6367 if let Some((scrollbar_layout, axis)) = event
6368 .pressed_button
6369 .filter(|button| *button == MouseButton::Left)
6370 .and(editor.scroll_manager.dragging_scrollbar_axis())
6371 .and_then(|axis| {
6372 scrollbars_layout
6373 .iter_scrollbars()
6374 .find(|(_, a)| *a == axis)
6375 })
6376 {
6377 let ScrollbarLayout {
6378 hitbox,
6379 text_unit_size,
6380 ..
6381 } = scrollbar_layout;
6382
6383 let old_position = mouse_position.along(axis);
6384 let new_position = event.position.along(axis);
6385 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
6386 .contains(&old_position)
6387 {
6388 let position = editor.scroll_position(cx).apply_along(axis, |p| {
6389 (p + (new_position - old_position) / *text_unit_size).max(0.)
6390 });
6391 editor.set_scroll_position(position, window, cx);
6392 }
6393
6394 editor.scroll_manager.show_scrollbars(window, cx);
6395 cx.stop_propagation();
6396 } else if let Some((layout, axis)) = scrollbars_layout
6397 .get_hovered_axis(window)
6398 .filter(|_| !event.dragging())
6399 {
6400 if layout.thumb_hovered(&event.position) {
6401 editor
6402 .scroll_manager
6403 .set_hovered_scroll_thumb_axis(axis, cx);
6404 } else {
6405 editor.scroll_manager.reset_scrollbar_state(cx);
6406 }
6407
6408 editor.scroll_manager.show_scrollbars(window, cx);
6409 } else {
6410 editor.scroll_manager.reset_scrollbar_state(cx);
6411 }
6412
6413 mouse_position = event.position;
6414 })
6415 }
6416 });
6417
6418 if any_scrollbar_dragged {
6419 window.on_mouse_event({
6420 let editor = self.editor.clone();
6421 move |_: &MouseUpEvent, phase, window, cx| {
6422 if phase == DispatchPhase::Capture {
6423 return;
6424 }
6425
6426 editor.update(cx, |editor, cx| {
6427 if let Some((_, axis)) = scrollbars_layout.get_hovered_axis(window) {
6428 editor
6429 .scroll_manager
6430 .set_hovered_scroll_thumb_axis(axis, cx);
6431 } else {
6432 editor.scroll_manager.reset_scrollbar_state(cx);
6433 }
6434 cx.stop_propagation();
6435 });
6436 }
6437 });
6438 } else {
6439 window.on_mouse_event({
6440 let editor = self.editor.clone();
6441
6442 move |event: &MouseDownEvent, phase, window, cx| {
6443 if phase == DispatchPhase::Capture {
6444 return;
6445 }
6446 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
6447 else {
6448 return;
6449 };
6450
6451 let ScrollbarLayout {
6452 hitbox,
6453 visible_range,
6454 text_unit_size,
6455 thumb_bounds,
6456 ..
6457 } = scrollbar_layout;
6458
6459 let Some(thumb_bounds) = thumb_bounds else {
6460 return;
6461 };
6462
6463 editor.update(cx, |editor, cx| {
6464 editor
6465 .scroll_manager
6466 .set_dragged_scroll_thumb_axis(axis, cx);
6467
6468 let event_position = event.position.along(axis);
6469
6470 if event_position < thumb_bounds.origin.along(axis)
6471 || thumb_bounds.bottom_right().along(axis) < event_position
6472 {
6473 let center_position = ((event_position - hitbox.origin.along(axis))
6474 / *text_unit_size)
6475 .round() as u32;
6476 let start_position = center_position.saturating_sub(
6477 (visible_range.end - visible_range.start) as u32 / 2,
6478 );
6479
6480 let position = editor
6481 .scroll_position(cx)
6482 .apply_along(axis, |_| start_position as f32);
6483
6484 editor.set_scroll_position(position, window, cx);
6485 } else {
6486 editor.scroll_manager.show_scrollbars(window, cx);
6487 }
6488
6489 cx.stop_propagation();
6490 });
6491 }
6492 });
6493 }
6494 }
6495
6496 fn collect_fast_scrollbar_markers(
6497 &self,
6498 layout: &EditorLayout,
6499 scrollbar_layout: &ScrollbarLayout,
6500 cx: &mut App,
6501 ) -> Vec<PaintQuad> {
6502 const LIMIT: usize = 100;
6503 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
6504 return vec![];
6505 }
6506 let cursor_ranges = layout
6507 .cursors
6508 .iter()
6509 .map(|(point, color)| ColoredRange {
6510 start: point.row(),
6511 end: point.row(),
6512 color: *color,
6513 })
6514 .collect_vec();
6515 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
6516 }
6517
6518 fn refresh_slow_scrollbar_markers(
6519 &self,
6520 layout: &EditorLayout,
6521 scrollbar_layout: &ScrollbarLayout,
6522 window: &mut Window,
6523 cx: &mut App,
6524 ) {
6525 self.editor.update(cx, |editor, cx| {
6526 if !editor.is_singleton(cx)
6527 || !editor
6528 .scrollbar_marker_state
6529 .should_refresh(scrollbar_layout.hitbox.size)
6530 {
6531 return;
6532 }
6533
6534 let scrollbar_layout = scrollbar_layout.clone();
6535 let background_highlights = editor.background_highlights.clone();
6536 let snapshot = layout.position_map.snapshot.clone();
6537 let theme = cx.theme().clone();
6538 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
6539
6540 editor.scrollbar_marker_state.dirty = false;
6541 editor.scrollbar_marker_state.pending_refresh =
6542 Some(cx.spawn_in(window, async move |editor, cx| {
6543 let scrollbar_size = scrollbar_layout.hitbox.size;
6544 let scrollbar_markers = cx
6545 .background_spawn(async move {
6546 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
6547 let mut marker_quads = Vec::new();
6548 if scrollbar_settings.git_diff {
6549 let marker_row_ranges =
6550 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
6551 let start_display_row =
6552 MultiBufferPoint::new(hunk.row_range.start.0, 0)
6553 .to_display_point(&snapshot.display_snapshot)
6554 .row();
6555 let mut end_display_row =
6556 MultiBufferPoint::new(hunk.row_range.end.0, 0)
6557 .to_display_point(&snapshot.display_snapshot)
6558 .row();
6559 if end_display_row != start_display_row {
6560 end_display_row.0 -= 1;
6561 }
6562 let color = match &hunk.status().kind {
6563 DiffHunkStatusKind::Added => {
6564 theme.colors().version_control_added
6565 }
6566 DiffHunkStatusKind::Modified => {
6567 theme.colors().version_control_modified
6568 }
6569 DiffHunkStatusKind::Deleted => {
6570 theme.colors().version_control_deleted
6571 }
6572 };
6573 ColoredRange {
6574 start: start_display_row,
6575 end: end_display_row,
6576 color,
6577 }
6578 });
6579
6580 marker_quads.extend(
6581 scrollbar_layout
6582 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
6583 );
6584 }
6585
6586 for (background_highlight_id, (_, background_ranges)) in
6587 background_highlights.iter()
6588 {
6589 let is_search_highlights = *background_highlight_id
6590 == HighlightKey::Type(TypeId::of::<BufferSearchHighlights>());
6591 let is_text_highlights = *background_highlight_id
6592 == HighlightKey::Type(TypeId::of::<SelectedTextHighlight>());
6593 let is_symbol_occurrences = *background_highlight_id
6594 == HighlightKey::Type(TypeId::of::<DocumentHighlightRead>())
6595 || *background_highlight_id
6596 == HighlightKey::Type(
6597 TypeId::of::<DocumentHighlightWrite>(),
6598 );
6599 if (is_search_highlights && scrollbar_settings.search_results)
6600 || (is_text_highlights && scrollbar_settings.selected_text)
6601 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
6602 {
6603 let mut color = theme.status().info;
6604 if is_symbol_occurrences {
6605 color.fade_out(0.5);
6606 }
6607 let marker_row_ranges = background_ranges.iter().map(|range| {
6608 let display_start = range
6609 .start
6610 .to_display_point(&snapshot.display_snapshot);
6611 let display_end =
6612 range.end.to_display_point(&snapshot.display_snapshot);
6613 ColoredRange {
6614 start: display_start.row(),
6615 end: display_end.row(),
6616 color,
6617 }
6618 });
6619 marker_quads.extend(
6620 scrollbar_layout
6621 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
6622 );
6623 }
6624 }
6625
6626 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
6627 let diagnostics = snapshot
6628 .buffer_snapshot
6629 .diagnostics_in_range::<Point>(Point::zero()..max_point)
6630 // Don't show diagnostics the user doesn't care about
6631 .filter(|diagnostic| {
6632 match (
6633 scrollbar_settings.diagnostics,
6634 diagnostic.diagnostic.severity,
6635 ) {
6636 (ScrollbarDiagnostics::All, _) => true,
6637 (
6638 ScrollbarDiagnostics::Error,
6639 lsp::DiagnosticSeverity::ERROR,
6640 ) => true,
6641 (
6642 ScrollbarDiagnostics::Warning,
6643 lsp::DiagnosticSeverity::ERROR
6644 | lsp::DiagnosticSeverity::WARNING,
6645 ) => true,
6646 (
6647 ScrollbarDiagnostics::Information,
6648 lsp::DiagnosticSeverity::ERROR
6649 | lsp::DiagnosticSeverity::WARNING
6650 | lsp::DiagnosticSeverity::INFORMATION,
6651 ) => true,
6652 (_, _) => false,
6653 }
6654 })
6655 // We want to sort by severity, in order to paint the most severe diagnostics last.
6656 .sorted_by_key(|diagnostic| {
6657 std::cmp::Reverse(diagnostic.diagnostic.severity)
6658 });
6659
6660 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
6661 let start_display = diagnostic
6662 .range
6663 .start
6664 .to_display_point(&snapshot.display_snapshot);
6665 let end_display = diagnostic
6666 .range
6667 .end
6668 .to_display_point(&snapshot.display_snapshot);
6669 let color = match diagnostic.diagnostic.severity {
6670 lsp::DiagnosticSeverity::ERROR => theme.status().error,
6671 lsp::DiagnosticSeverity::WARNING => theme.status().warning,
6672 lsp::DiagnosticSeverity::INFORMATION => theme.status().info,
6673 _ => theme.status().hint,
6674 };
6675 ColoredRange {
6676 start: start_display.row(),
6677 end: end_display.row(),
6678 color,
6679 }
6680 });
6681 marker_quads.extend(
6682 scrollbar_layout
6683 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
6684 );
6685 }
6686
6687 Arc::from(marker_quads)
6688 })
6689 .await;
6690
6691 editor.update(cx, |editor, cx| {
6692 editor.scrollbar_marker_state.markers = scrollbar_markers;
6693 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
6694 editor.scrollbar_marker_state.pending_refresh = None;
6695 cx.notify();
6696 })?;
6697
6698 Ok(())
6699 }));
6700 });
6701 }
6702
6703 fn paint_highlighted_range(
6704 &self,
6705 range: Range<DisplayPoint>,
6706 fill: bool,
6707 color: Hsla,
6708 corner_radius: Pixels,
6709 line_end_overshoot: Pixels,
6710 layout: &EditorLayout,
6711 window: &mut Window,
6712 ) {
6713 let start_row = layout.visible_display_row_range.start;
6714 let end_row = layout.visible_display_row_range.end;
6715 if range.start != range.end {
6716 let row_range = if range.end.column() == 0 {
6717 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
6718 } else {
6719 cmp::max(range.start.row(), start_row)
6720 ..cmp::min(range.end.row().next_row(), end_row)
6721 };
6722
6723 let highlighted_range = HighlightedRange {
6724 color,
6725 line_height: layout.position_map.line_height,
6726 corner_radius,
6727 start_y: layout.content_origin.y
6728 + row_range.start.as_f32() * layout.position_map.line_height
6729 - layout.position_map.scroll_pixel_position.y,
6730 lines: row_range
6731 .iter_rows()
6732 .map(|row| {
6733 let line_layout =
6734 &layout.position_map.line_layouts[row.minus(start_row) as usize];
6735 HighlightedRangeLine {
6736 start_x: if row == range.start.row() {
6737 layout.content_origin.x
6738 + line_layout.x_for_index(range.start.column() as usize)
6739 - layout.position_map.scroll_pixel_position.x
6740 } else {
6741 layout.content_origin.x
6742 - layout.position_map.scroll_pixel_position.x
6743 },
6744 end_x: if row == range.end.row() {
6745 layout.content_origin.x
6746 + line_layout.x_for_index(range.end.column() as usize)
6747 - layout.position_map.scroll_pixel_position.x
6748 } else {
6749 layout.content_origin.x + line_layout.width + line_end_overshoot
6750 - layout.position_map.scroll_pixel_position.x
6751 },
6752 }
6753 })
6754 .collect(),
6755 };
6756
6757 highlighted_range.paint(fill, layout.position_map.text_hitbox.bounds, window);
6758 }
6759 }
6760
6761 fn paint_inline_diagnostics(
6762 &mut self,
6763 layout: &mut EditorLayout,
6764 window: &mut Window,
6765 cx: &mut App,
6766 ) {
6767 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
6768 inline_diagnostic.1.paint(window, cx);
6769 }
6770 }
6771
6772 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6773 if let Some(mut blame_layout) = layout.inline_blame_layout.take() {
6774 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6775 blame_layout.element.paint(window, cx);
6776 })
6777 }
6778 }
6779
6780 fn paint_inline_code_actions(
6781 &mut self,
6782 layout: &mut EditorLayout,
6783 window: &mut Window,
6784 cx: &mut App,
6785 ) {
6786 if let Some(mut inline_code_actions) = layout.inline_code_actions.take() {
6787 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6788 inline_code_actions.paint(window, cx);
6789 })
6790 }
6791 }
6792
6793 fn paint_diff_hunk_controls(
6794 &mut self,
6795 layout: &mut EditorLayout,
6796 window: &mut Window,
6797 cx: &mut App,
6798 ) {
6799 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
6800 diff_hunk_control.paint(window, cx);
6801 }
6802 }
6803
6804 fn paint_minimap(&self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6805 if let Some(mut layout) = layout.minimap.take() {
6806 let minimap_hitbox = layout.thumb_layout.hitbox.clone();
6807 let dragging_minimap = self.editor.read(cx).scroll_manager.is_dragging_minimap();
6808
6809 window.paint_layer(layout.thumb_layout.hitbox.bounds, |window| {
6810 window.with_element_namespace("minimap", |window| {
6811 layout.minimap.paint(window, cx);
6812 if let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds {
6813 let minimap_thumb_color = match layout.thumb_layout.thumb_state {
6814 ScrollbarThumbState::Idle => {
6815 cx.theme().colors().minimap_thumb_background
6816 }
6817 ScrollbarThumbState::Hovered => {
6818 cx.theme().colors().minimap_thumb_hover_background
6819 }
6820 ScrollbarThumbState::Dragging => {
6821 cx.theme().colors().minimap_thumb_active_background
6822 }
6823 };
6824 let minimap_thumb_border = match layout.thumb_border_style {
6825 MinimapThumbBorder::Full => Edges::all(ScrollbarLayout::BORDER_WIDTH),
6826 MinimapThumbBorder::LeftOnly => Edges {
6827 left: ScrollbarLayout::BORDER_WIDTH,
6828 ..Default::default()
6829 },
6830 MinimapThumbBorder::LeftOpen => Edges {
6831 right: ScrollbarLayout::BORDER_WIDTH,
6832 top: ScrollbarLayout::BORDER_WIDTH,
6833 bottom: ScrollbarLayout::BORDER_WIDTH,
6834 ..Default::default()
6835 },
6836 MinimapThumbBorder::RightOpen => Edges {
6837 left: ScrollbarLayout::BORDER_WIDTH,
6838 top: ScrollbarLayout::BORDER_WIDTH,
6839 bottom: ScrollbarLayout::BORDER_WIDTH,
6840 ..Default::default()
6841 },
6842 MinimapThumbBorder::None => Default::default(),
6843 };
6844
6845 window.paint_layer(minimap_hitbox.bounds, |window| {
6846 window.paint_quad(quad(
6847 thumb_bounds,
6848 Corners::default(),
6849 minimap_thumb_color,
6850 minimap_thumb_border,
6851 cx.theme().colors().minimap_thumb_border,
6852 BorderStyle::Solid,
6853 ));
6854 });
6855 }
6856 });
6857 });
6858
6859 if dragging_minimap {
6860 window.set_window_cursor_style(CursorStyle::Arrow);
6861 } else {
6862 window.set_cursor_style(CursorStyle::Arrow, &minimap_hitbox);
6863 }
6864
6865 let minimap_axis = ScrollbarAxis::Vertical;
6866 let pixels_per_line = (minimap_hitbox.size.height / layout.max_scroll_top)
6867 .min(layout.minimap_line_height);
6868
6869 let mut mouse_position = window.mouse_position();
6870
6871 window.on_mouse_event({
6872 let editor = self.editor.clone();
6873
6874 let minimap_hitbox = minimap_hitbox.clone();
6875
6876 move |event: &MouseMoveEvent, phase, window, cx| {
6877 if phase == DispatchPhase::Capture {
6878 return;
6879 }
6880
6881 editor.update(cx, |editor, cx| {
6882 if event.pressed_button == Some(MouseButton::Left)
6883 && editor.scroll_manager.is_dragging_minimap()
6884 {
6885 let old_position = mouse_position.along(minimap_axis);
6886 let new_position = event.position.along(minimap_axis);
6887 if (minimap_hitbox.origin.along(minimap_axis)
6888 ..minimap_hitbox.bottom_right().along(minimap_axis))
6889 .contains(&old_position)
6890 {
6891 let position =
6892 editor.scroll_position(cx).apply_along(minimap_axis, |p| {
6893 (p + (new_position - old_position) / pixels_per_line)
6894 .max(0.)
6895 });
6896 editor.set_scroll_position(position, window, cx);
6897 }
6898 cx.stop_propagation();
6899 } else if minimap_hitbox.is_hovered(window) {
6900 editor.scroll_manager.set_is_hovering_minimap_thumb(
6901 !event.dragging()
6902 && layout
6903 .thumb_layout
6904 .thumb_bounds
6905 .is_some_and(|bounds| bounds.contains(&event.position)),
6906 cx,
6907 );
6908
6909 // Stop hover events from propagating to the
6910 // underlying editor if the minimap hitbox is hovered
6911 if !event.dragging() {
6912 cx.stop_propagation();
6913 }
6914 } else {
6915 editor.scroll_manager.hide_minimap_thumb(cx);
6916 }
6917 mouse_position = event.position;
6918 });
6919 }
6920 });
6921
6922 if dragging_minimap {
6923 window.on_mouse_event({
6924 let editor = self.editor.clone();
6925 move |event: &MouseUpEvent, phase, window, cx| {
6926 if phase == DispatchPhase::Capture {
6927 return;
6928 }
6929
6930 editor.update(cx, |editor, cx| {
6931 if minimap_hitbox.is_hovered(window) {
6932 editor.scroll_manager.set_is_hovering_minimap_thumb(
6933 layout
6934 .thumb_layout
6935 .thumb_bounds
6936 .is_some_and(|bounds| bounds.contains(&event.position)),
6937 cx,
6938 );
6939 } else {
6940 editor.scroll_manager.hide_minimap_thumb(cx);
6941 }
6942 cx.stop_propagation();
6943 });
6944 }
6945 });
6946 } else {
6947 window.on_mouse_event({
6948 let editor = self.editor.clone();
6949
6950 move |event: &MouseDownEvent, phase, window, cx| {
6951 if phase == DispatchPhase::Capture || !minimap_hitbox.is_hovered(window) {
6952 return;
6953 }
6954
6955 let event_position = event.position;
6956
6957 let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds else {
6958 return;
6959 };
6960
6961 editor.update(cx, |editor, cx| {
6962 if !thumb_bounds.contains(&event_position) {
6963 let click_position =
6964 event_position.relative_to(&minimap_hitbox.origin).y;
6965
6966 let top_position = (click_position
6967 - thumb_bounds.size.along(minimap_axis) / 2.0)
6968 .max(Pixels::ZERO);
6969
6970 let scroll_offset = (layout.minimap_scroll_top
6971 + top_position / layout.minimap_line_height)
6972 .min(layout.max_scroll_top);
6973
6974 let scroll_position = editor
6975 .scroll_position(cx)
6976 .apply_along(minimap_axis, |_| scroll_offset);
6977 editor.set_scroll_position(scroll_position, window, cx);
6978 }
6979
6980 editor.scroll_manager.set_is_dragging_minimap(cx);
6981 cx.stop_propagation();
6982 });
6983 }
6984 });
6985 }
6986 }
6987 }
6988
6989 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6990 for mut block in layout.blocks.drain(..) {
6991 if block.overlaps_gutter {
6992 block.element.paint(window, cx);
6993 } else {
6994 let mut bounds = layout.hitbox.bounds;
6995 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
6996 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6997 block.element.paint(window, cx);
6998 })
6999 }
7000 }
7001 }
7002
7003 fn paint_edit_prediction_popover(
7004 &mut self,
7005 layout: &mut EditorLayout,
7006 window: &mut Window,
7007 cx: &mut App,
7008 ) {
7009 if let Some(edit_prediction_popover) = layout.edit_prediction_popover.as_mut() {
7010 edit_prediction_popover.paint(window, cx);
7011 }
7012 }
7013
7014 fn paint_mouse_context_menu(
7015 &mut self,
7016 layout: &mut EditorLayout,
7017 window: &mut Window,
7018 cx: &mut App,
7019 ) {
7020 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
7021 mouse_context_menu.paint(window, cx);
7022 }
7023 }
7024
7025 fn paint_scroll_wheel_listener(
7026 &mut self,
7027 layout: &EditorLayout,
7028 window: &mut Window,
7029 cx: &mut App,
7030 ) {
7031 window.on_mouse_event({
7032 let position_map = layout.position_map.clone();
7033 let editor = self.editor.clone();
7034 let hitbox = layout.hitbox.clone();
7035 let mut delta = ScrollDelta::default();
7036
7037 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
7038 // accidentally turn off their scrolling.
7039 let base_scroll_sensitivity =
7040 EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
7041
7042 // Use a minimum fast_scroll_sensitivity for same reason above
7043 let fast_scroll_sensitivity = EditorSettings::get_global(cx)
7044 .fast_scroll_sensitivity
7045 .max(0.01);
7046
7047 move |event: &ScrollWheelEvent, phase, window, cx| {
7048 let scroll_sensitivity = {
7049 if event.modifiers.alt {
7050 fast_scroll_sensitivity
7051 } else {
7052 base_scroll_sensitivity
7053 }
7054 };
7055
7056 if phase == DispatchPhase::Bubble && hitbox.should_handle_scroll(window) {
7057 delta = delta.coalesce(event.delta);
7058 editor.update(cx, |editor, cx| {
7059 let position_map: &PositionMap = &position_map;
7060
7061 let line_height = position_map.line_height;
7062 let max_glyph_advance = position_map.em_advance;
7063 let (delta, axis) = match delta {
7064 gpui::ScrollDelta::Pixels(mut pixels) => {
7065 //Trackpad
7066 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
7067 (pixels, axis)
7068 }
7069
7070 gpui::ScrollDelta::Lines(lines) => {
7071 //Not trackpad
7072 let pixels =
7073 point(lines.x * max_glyph_advance, lines.y * line_height);
7074 (pixels, None)
7075 }
7076 };
7077
7078 let current_scroll_position = position_map.snapshot.scroll_position();
7079 let x = (current_scroll_position.x * max_glyph_advance
7080 - (delta.x * scroll_sensitivity))
7081 / max_glyph_advance;
7082 let y = (current_scroll_position.y * line_height
7083 - (delta.y * scroll_sensitivity))
7084 / line_height;
7085 let mut scroll_position =
7086 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
7087 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
7088 if forbid_vertical_scroll {
7089 scroll_position.y = current_scroll_position.y;
7090 }
7091
7092 if scroll_position != current_scroll_position {
7093 editor.scroll(scroll_position, axis, window, cx);
7094 cx.stop_propagation();
7095 } else if y < 0. {
7096 // Due to clamping, we may fail to detect cases of overscroll to the top;
7097 // We want the scroll manager to get an update in such cases and detect the change of direction
7098 // on the next frame.
7099 cx.notify();
7100 }
7101 });
7102 }
7103 }
7104 });
7105 }
7106
7107 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
7108 if layout.mode.is_minimap() {
7109 return;
7110 }
7111
7112 self.paint_scroll_wheel_listener(layout, window, cx);
7113
7114 window.on_mouse_event({
7115 let position_map = layout.position_map.clone();
7116 let editor = self.editor.clone();
7117 let diff_hunk_range =
7118 layout
7119 .display_hunks
7120 .iter()
7121 .find_map(|(hunk, hunk_hitbox)| match hunk {
7122 DisplayDiffHunk::Folded { .. } => None,
7123 DisplayDiffHunk::Unfolded {
7124 multi_buffer_range, ..
7125 } => {
7126 if hunk_hitbox
7127 .as_ref()
7128 .map(|hitbox| hitbox.is_hovered(window))
7129 .unwrap_or(false)
7130 {
7131 Some(multi_buffer_range.clone())
7132 } else {
7133 None
7134 }
7135 }
7136 });
7137 let line_numbers = layout.line_numbers.clone();
7138
7139 move |event: &MouseDownEvent, phase, window, cx| {
7140 if phase == DispatchPhase::Bubble {
7141 match event.button {
7142 MouseButton::Left => editor.update(cx, |editor, cx| {
7143 let pending_mouse_down = editor
7144 .pending_mouse_down
7145 .get_or_insert_with(Default::default)
7146 .clone();
7147
7148 *pending_mouse_down.borrow_mut() = Some(event.clone());
7149
7150 Self::mouse_left_down(
7151 editor,
7152 event,
7153 diff_hunk_range.clone(),
7154 &position_map,
7155 line_numbers.as_ref(),
7156 window,
7157 cx,
7158 );
7159 }),
7160 MouseButton::Right => editor.update(cx, |editor, cx| {
7161 Self::mouse_right_down(editor, event, &position_map, window, cx);
7162 }),
7163 MouseButton::Middle => editor.update(cx, |editor, cx| {
7164 Self::mouse_middle_down(editor, event, &position_map, window, cx);
7165 }),
7166 _ => {}
7167 };
7168 }
7169 }
7170 });
7171
7172 window.on_mouse_event({
7173 let editor = self.editor.clone();
7174 let position_map = layout.position_map.clone();
7175
7176 move |event: &MouseUpEvent, phase, window, cx| {
7177 if phase == DispatchPhase::Bubble {
7178 editor.update(cx, |editor, cx| {
7179 Self::mouse_up(editor, event, &position_map, window, cx)
7180 });
7181 }
7182 }
7183 });
7184
7185 window.on_mouse_event({
7186 let editor = self.editor.clone();
7187 let position_map = layout.position_map.clone();
7188 let mut captured_mouse_down = None;
7189
7190 move |event: &MouseUpEvent, phase, window, cx| match phase {
7191 // Clear the pending mouse down during the capture phase,
7192 // so that it happens even if another event handler stops
7193 // propagation.
7194 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
7195 let pending_mouse_down = editor
7196 .pending_mouse_down
7197 .get_or_insert_with(Default::default)
7198 .clone();
7199
7200 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
7201 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
7202 captured_mouse_down = pending_mouse_down.take();
7203 window.refresh();
7204 }
7205 }),
7206 // Fire click handlers during the bubble phase.
7207 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
7208 if let Some(mouse_down) = captured_mouse_down.take() {
7209 let event = ClickEvent::Mouse(MouseClickEvent {
7210 down: mouse_down,
7211 up: event.clone(),
7212 });
7213 Self::click(editor, &event, &position_map, window, cx);
7214 }
7215 }),
7216 }
7217 });
7218
7219 window.on_mouse_event({
7220 let position_map = layout.position_map.clone();
7221 let editor = self.editor.clone();
7222
7223 move |event: &MouseMoveEvent, phase, window, cx| {
7224 if phase == DispatchPhase::Bubble {
7225 editor.update(cx, |editor, cx| {
7226 if editor.hover_state.focused(window, cx) {
7227 return;
7228 }
7229 if event.pressed_button == Some(MouseButton::Left)
7230 || event.pressed_button == Some(MouseButton::Middle)
7231 {
7232 Self::mouse_dragged(editor, event, &position_map, window, cx)
7233 }
7234
7235 Self::mouse_moved(editor, event, &position_map, window, cx)
7236 });
7237 }
7238 }
7239 });
7240 }
7241
7242 fn column_pixels(&self, column: usize, window: &Window) -> Pixels {
7243 let style = &self.style;
7244 let font_size = style.text.font_size.to_pixels(window.rem_size());
7245 let layout = window.text_system().shape_line(
7246 SharedString::from(" ".repeat(column)),
7247 font_size,
7248 &[TextRun {
7249 len: column,
7250 font: style.text.font(),
7251 color: Hsla::default(),
7252 background_color: None,
7253 underline: None,
7254 strikethrough: None,
7255 }],
7256 None,
7257 );
7258
7259 layout.width
7260 }
7261
7262 fn max_line_number_width(&self, snapshot: &EditorSnapshot, window: &mut Window) -> Pixels {
7263 let digit_count = snapshot.widest_line_number().ilog10() + 1;
7264 self.column_pixels(digit_count as usize, window)
7265 }
7266
7267 fn shape_line_number(
7268 &self,
7269 text: SharedString,
7270 color: Hsla,
7271 window: &mut Window,
7272 ) -> ShapedLine {
7273 let run = TextRun {
7274 len: text.len(),
7275 font: self.style.text.font(),
7276 color,
7277 background_color: None,
7278 underline: None,
7279 strikethrough: None,
7280 };
7281 window.text_system().shape_line(
7282 text,
7283 self.style.text.font_size.to_pixels(window.rem_size()),
7284 &[run],
7285 None,
7286 )
7287 }
7288
7289 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
7290 let unstaged = status.has_secondary_hunk();
7291 let unstaged_hollow = matches!(
7292 ProjectSettings::get_global(cx).git.hunk_style,
7293 GitHunkStyleSetting::UnstagedHollow
7294 );
7295
7296 unstaged == unstaged_hollow
7297 }
7298
7299 #[cfg(debug_assertions)]
7300 fn layout_debug_ranges(
7301 selections: &mut Vec<(PlayerColor, Vec<SelectionLayout>)>,
7302 anchor_range: Range<Anchor>,
7303 display_snapshot: &DisplaySnapshot,
7304 cx: &App,
7305 ) {
7306 let theme = cx.theme();
7307 text::debug::GlobalDebugRanges::with_locked(|debug_ranges| {
7308 if debug_ranges.ranges.is_empty() {
7309 return;
7310 }
7311 let buffer_snapshot = &display_snapshot.buffer_snapshot;
7312 for (buffer, buffer_range, excerpt_id) in
7313 buffer_snapshot.range_to_buffer_ranges(anchor_range)
7314 {
7315 let buffer_range =
7316 buffer.anchor_after(buffer_range.start)..buffer.anchor_before(buffer_range.end);
7317 selections.extend(debug_ranges.ranges.iter().flat_map(|debug_range| {
7318 let player_color = theme
7319 .players()
7320 .color_for_participant(debug_range.occurrence_index as u32 + 1);
7321 debug_range.ranges.iter().filter_map(move |range| {
7322 if range.start.buffer_id != Some(buffer.remote_id()) {
7323 return None;
7324 }
7325 let clipped_start = range.start.max(&buffer_range.start, buffer);
7326 let clipped_end = range.end.min(&buffer_range.end, buffer);
7327 let range = buffer_snapshot.anchor_in_excerpt(excerpt_id, clipped_start)?
7328 ..buffer_snapshot.anchor_in_excerpt(excerpt_id, clipped_end)?;
7329 let start = range.start.to_display_point(display_snapshot);
7330 let end = range.end.to_display_point(display_snapshot);
7331 let selection_layout = SelectionLayout {
7332 head: start,
7333 range: start..end,
7334 cursor_shape: CursorShape::Bar,
7335 is_newest: false,
7336 is_local: false,
7337 active_rows: start.row()..end.row(),
7338 user_name: Some(SharedString::new(debug_range.value.clone())),
7339 };
7340 Some((player_color, vec![selection_layout]))
7341 })
7342 }));
7343 }
7344 });
7345 }
7346}
7347
7348fn header_jump_data(
7349 snapshot: &EditorSnapshot,
7350 block_row_start: DisplayRow,
7351 height: u32,
7352 for_excerpt: &ExcerptInfo,
7353) -> JumpData {
7354 let range = &for_excerpt.range;
7355 let buffer = &for_excerpt.buffer;
7356 let jump_anchor = range.primary.start;
7357
7358 let excerpt_start = range.context.start;
7359 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
7360 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
7361 0
7362 } else {
7363 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
7364 jump_position.row.saturating_sub(excerpt_start_point.row)
7365 };
7366
7367 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
7368 .saturating_sub(
7369 snapshot
7370 .scroll_anchor
7371 .scroll_position(&snapshot.display_snapshot)
7372 .y as u32,
7373 );
7374
7375 JumpData::MultiBufferPoint {
7376 excerpt_id: for_excerpt.id,
7377 anchor: jump_anchor,
7378 position: jump_position,
7379 line_offset_from_top,
7380 }
7381}
7382
7383pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
7384
7385impl AcceptEditPredictionBinding {
7386 pub fn keystroke(&self) -> Option<&KeybindingKeystroke> {
7387 if let Some(binding) = self.0.as_ref() {
7388 match &binding.keystrokes() {
7389 [keystroke, ..] => Some(keystroke),
7390 _ => None,
7391 }
7392 } else {
7393 None
7394 }
7395 }
7396}
7397
7398fn prepaint_gutter_button(
7399 button: IconButton,
7400 row: DisplayRow,
7401 line_height: Pixels,
7402 gutter_dimensions: &GutterDimensions,
7403 scroll_pixel_position: gpui::Point<Pixels>,
7404 gutter_hitbox: &Hitbox,
7405 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
7406 window: &mut Window,
7407 cx: &mut App,
7408) -> AnyElement {
7409 let mut button = button.into_any_element();
7410
7411 let available_space = size(
7412 AvailableSpace::MinContent,
7413 AvailableSpace::Definite(line_height),
7414 );
7415 let indicator_size = button.layout_as_root(available_space, window, cx);
7416
7417 let blame_width = gutter_dimensions.git_blame_entries_width;
7418 let gutter_width = display_hunks
7419 .binary_search_by(|(hunk, _)| match hunk {
7420 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
7421 DisplayDiffHunk::Unfolded {
7422 display_row_range, ..
7423 } => {
7424 if display_row_range.end <= row {
7425 Ordering::Less
7426 } else if display_row_range.start > row {
7427 Ordering::Greater
7428 } else {
7429 Ordering::Equal
7430 }
7431 }
7432 })
7433 .ok()
7434 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
7435 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
7436
7437 let mut x = left_offset;
7438 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
7439 - indicator_size.width
7440 - left_offset;
7441 x += available_width / 2.;
7442
7443 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
7444 y += (line_height - indicator_size.height) / 2.;
7445
7446 button.prepaint_as_root(
7447 gutter_hitbox.origin + point(x, y),
7448 available_space,
7449 window,
7450 cx,
7451 );
7452 button
7453}
7454
7455fn render_inline_blame_entry(
7456 blame_entry: BlameEntry,
7457 style: &EditorStyle,
7458 cx: &mut App,
7459) -> Option<AnyElement> {
7460 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
7461 renderer.render_inline_blame_entry(&style.text, blame_entry, cx)
7462}
7463
7464fn render_blame_entry_popover(
7465 blame_entry: BlameEntry,
7466 scroll_handle: ScrollHandle,
7467 commit_message: Option<ParsedCommitMessage>,
7468 markdown: Entity<Markdown>,
7469 workspace: WeakEntity<Workspace>,
7470 blame: &Entity<GitBlame>,
7471 buffer: BufferId,
7472 window: &mut Window,
7473 cx: &mut App,
7474) -> Option<AnyElement> {
7475 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
7476 let blame = blame.read(cx);
7477 let repository = blame.repository(cx, buffer)?;
7478 renderer.render_blame_entry_popover(
7479 blame_entry,
7480 scroll_handle,
7481 commit_message,
7482 markdown,
7483 repository,
7484 workspace,
7485 window,
7486 cx,
7487 )
7488}
7489
7490fn render_blame_entry(
7491 ix: usize,
7492 blame: &Entity<GitBlame>,
7493 blame_entry: BlameEntry,
7494 style: &EditorStyle,
7495 last_used_color: &mut Option<(PlayerColor, Oid)>,
7496 editor: Entity<Editor>,
7497 workspace: Entity<Workspace>,
7498 buffer: BufferId,
7499 renderer: Arc<dyn BlameRenderer>,
7500 cx: &mut App,
7501) -> Option<AnyElement> {
7502 let mut sha_color = cx
7503 .theme()
7504 .players()
7505 .color_for_participant(blame_entry.sha.into());
7506
7507 // If the last color we used is the same as the one we get for this line, but
7508 // the commit SHAs are different, then we try again to get a different color.
7509 match *last_used_color {
7510 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
7511 let index: u32 = blame_entry.sha.into();
7512 sha_color = cx.theme().players().color_for_participant(index + 1);
7513 }
7514 _ => {}
7515 };
7516 last_used_color.replace((sha_color, blame_entry.sha));
7517
7518 let blame = blame.read(cx);
7519 let details = blame.details_for_entry(buffer, &blame_entry);
7520 let repository = blame.repository(cx, buffer)?;
7521 renderer.render_blame_entry(
7522 &style.text,
7523 blame_entry,
7524 details,
7525 repository,
7526 workspace.downgrade(),
7527 editor,
7528 ix,
7529 sha_color.cursor,
7530 cx,
7531 )
7532}
7533
7534#[derive(Debug)]
7535pub(crate) struct LineWithInvisibles {
7536 fragments: SmallVec<[LineFragment; 1]>,
7537 invisibles: Vec<Invisible>,
7538 len: usize,
7539 pub(crate) width: Pixels,
7540 font_size: Pixels,
7541}
7542
7543enum LineFragment {
7544 Text(ShapedLine),
7545 Element {
7546 id: ChunkRendererId,
7547 element: Option<AnyElement>,
7548 size: Size<Pixels>,
7549 len: usize,
7550 },
7551}
7552
7553impl fmt::Debug for LineFragment {
7554 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
7555 match self {
7556 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
7557 LineFragment::Element { size, len, .. } => f
7558 .debug_struct("Element")
7559 .field("size", size)
7560 .field("len", len)
7561 .finish(),
7562 }
7563 }
7564}
7565
7566impl LineWithInvisibles {
7567 fn from_chunks<'a>(
7568 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
7569 editor_style: &EditorStyle,
7570 max_line_len: usize,
7571 max_line_count: usize,
7572 editor_mode: &EditorMode,
7573 text_width: Pixels,
7574 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
7575 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
7576 window: &mut Window,
7577 cx: &mut App,
7578 ) -> Vec<Self> {
7579 let text_style = &editor_style.text;
7580 let mut layouts = Vec::with_capacity(max_line_count);
7581 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
7582 let mut line = String::new();
7583 let mut invisibles = Vec::new();
7584 let mut width = Pixels::ZERO;
7585 let mut len = 0;
7586 let mut styles = Vec::new();
7587 let mut non_whitespace_added = false;
7588 let mut row = 0;
7589 let mut line_exceeded_max_len = false;
7590 let font_size = text_style.font_size.to_pixels(window.rem_size());
7591 let min_contrast = EditorSettings::get_global(cx).minimum_contrast_for_highlights;
7592
7593 let ellipsis = SharedString::from("β―");
7594
7595 for highlighted_chunk in chunks.chain([HighlightedChunk {
7596 text: "\n",
7597 style: None,
7598 is_tab: false,
7599 is_inlay: false,
7600 replacement: None,
7601 }]) {
7602 if let Some(replacement) = highlighted_chunk.replacement {
7603 if !line.is_empty() {
7604 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
7605 let text_runs: &[TextRun] = if segments.is_empty() {
7606 &styles
7607 } else {
7608 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast)
7609 };
7610 let shaped_line = window.text_system().shape_line(
7611 line.clone().into(),
7612 font_size,
7613 text_runs,
7614 None,
7615 );
7616 width += shaped_line.width;
7617 len += shaped_line.len;
7618 fragments.push(LineFragment::Text(shaped_line));
7619 line.clear();
7620 styles.clear();
7621 }
7622
7623 match replacement {
7624 ChunkReplacement::Renderer(renderer) => {
7625 let available_width = if renderer.constrain_width {
7626 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
7627 ellipsis.clone()
7628 } else {
7629 SharedString::from(Arc::from(highlighted_chunk.text))
7630 };
7631 let shaped_line = window.text_system().shape_line(
7632 chunk,
7633 font_size,
7634 &[text_style.to_run(highlighted_chunk.text.len())],
7635 None,
7636 );
7637 AvailableSpace::Definite(shaped_line.width)
7638 } else {
7639 AvailableSpace::MinContent
7640 };
7641
7642 let mut element = (renderer.render)(&mut ChunkRendererContext {
7643 context: cx,
7644 window,
7645 max_width: text_width,
7646 });
7647 let line_height = text_style.line_height_in_pixels(window.rem_size());
7648 let size = element.layout_as_root(
7649 size(available_width, AvailableSpace::Definite(line_height)),
7650 window,
7651 cx,
7652 );
7653
7654 width += size.width;
7655 len += highlighted_chunk.text.len();
7656 fragments.push(LineFragment::Element {
7657 id: renderer.id,
7658 element: Some(element),
7659 size,
7660 len: highlighted_chunk.text.len(),
7661 });
7662 }
7663 ChunkReplacement::Str(x) => {
7664 let text_style = if let Some(style) = highlighted_chunk.style {
7665 Cow::Owned(text_style.clone().highlight(style))
7666 } else {
7667 Cow::Borrowed(text_style)
7668 };
7669
7670 let run = TextRun {
7671 len: x.len(),
7672 font: text_style.font(),
7673 color: text_style.color,
7674 background_color: text_style.background_color,
7675 underline: text_style.underline,
7676 strikethrough: text_style.strikethrough,
7677 };
7678 let line_layout = window
7679 .text_system()
7680 .shape_line(x, font_size, &[run], None)
7681 .with_len(highlighted_chunk.text.len());
7682
7683 width += line_layout.width;
7684 len += highlighted_chunk.text.len();
7685 fragments.push(LineFragment::Text(line_layout))
7686 }
7687 }
7688 } else {
7689 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
7690 if ix > 0 {
7691 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
7692 let text_runs = if segments.is_empty() {
7693 &styles
7694 } else {
7695 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast)
7696 };
7697 let shaped_line = window.text_system().shape_line(
7698 line.clone().into(),
7699 font_size,
7700 text_runs,
7701 None,
7702 );
7703 width += shaped_line.width;
7704 len += shaped_line.len;
7705 fragments.push(LineFragment::Text(shaped_line));
7706 layouts.push(Self {
7707 width: mem::take(&mut width),
7708 len: mem::take(&mut len),
7709 fragments: mem::take(&mut fragments),
7710 invisibles: std::mem::take(&mut invisibles),
7711 font_size,
7712 });
7713
7714 line.clear();
7715 styles.clear();
7716 row += 1;
7717 line_exceeded_max_len = false;
7718 non_whitespace_added = false;
7719 if row == max_line_count {
7720 return layouts;
7721 }
7722 }
7723
7724 if !line_chunk.is_empty() && !line_exceeded_max_len {
7725 let text_style = if let Some(style) = highlighted_chunk.style {
7726 Cow::Owned(text_style.clone().highlight(style))
7727 } else {
7728 Cow::Borrowed(text_style)
7729 };
7730
7731 if line.len() + line_chunk.len() > max_line_len {
7732 let mut chunk_len = max_line_len - line.len();
7733 while !line_chunk.is_char_boundary(chunk_len) {
7734 chunk_len -= 1;
7735 }
7736 line_chunk = &line_chunk[..chunk_len];
7737 line_exceeded_max_len = true;
7738 }
7739
7740 styles.push(TextRun {
7741 len: line_chunk.len(),
7742 font: text_style.font(),
7743 color: text_style.color,
7744 background_color: text_style.background_color,
7745 underline: text_style.underline,
7746 strikethrough: text_style.strikethrough,
7747 });
7748
7749 if editor_mode.is_full() && !highlighted_chunk.is_inlay {
7750 // Line wrap pads its contents with fake whitespaces,
7751 // avoid printing them
7752 let is_soft_wrapped = is_row_soft_wrapped(row);
7753 if highlighted_chunk.is_tab {
7754 if non_whitespace_added || !is_soft_wrapped {
7755 invisibles.push(Invisible::Tab {
7756 line_start_offset: line.len(),
7757 line_end_offset: line.len() + line_chunk.len(),
7758 });
7759 }
7760 } else {
7761 invisibles.extend(line_chunk.char_indices().filter_map(
7762 |(index, c)| {
7763 let is_whitespace = c.is_whitespace();
7764 non_whitespace_added |= !is_whitespace;
7765 if is_whitespace
7766 && (non_whitespace_added || !is_soft_wrapped)
7767 {
7768 Some(Invisible::Whitespace {
7769 line_offset: line.len() + index,
7770 })
7771 } else {
7772 None
7773 }
7774 },
7775 ))
7776 }
7777 }
7778
7779 line.push_str(line_chunk);
7780 }
7781 }
7782 }
7783 }
7784
7785 layouts
7786 }
7787
7788 /// Takes text runs and non-overlapping left-to-right background ranges with color.
7789 /// Returns new text runs with adjusted contrast as per background ranges.
7790 fn split_runs_by_bg_segments(
7791 text_runs: &[TextRun],
7792 bg_segments: &[(Range<DisplayPoint>, Hsla)],
7793 min_contrast: f32,
7794 ) -> Vec<TextRun> {
7795 let mut output_runs: Vec<TextRun> = Vec::with_capacity(text_runs.len());
7796 let mut line_col = 0usize;
7797 let mut segment_ix = 0usize;
7798
7799 for text_run in text_runs.iter() {
7800 let run_start_col = line_col;
7801 let run_end_col = run_start_col + text_run.len;
7802 while segment_ix < bg_segments.len()
7803 && (bg_segments[segment_ix].0.end.column() as usize) <= run_start_col
7804 {
7805 segment_ix += 1;
7806 }
7807 let mut cursor_col = run_start_col;
7808 let mut local_segment_ix = segment_ix;
7809 while local_segment_ix < bg_segments.len() {
7810 let (range, segment_color) = &bg_segments[local_segment_ix];
7811 let segment_start_col = range.start.column() as usize;
7812 let segment_end_col = range.end.column() as usize;
7813 if segment_start_col >= run_end_col {
7814 break;
7815 }
7816 if segment_start_col > cursor_col {
7817 let span_len = segment_start_col - cursor_col;
7818 output_runs.push(TextRun {
7819 len: span_len,
7820 font: text_run.font.clone(),
7821 color: text_run.color,
7822 background_color: text_run.background_color,
7823 underline: text_run.underline,
7824 strikethrough: text_run.strikethrough,
7825 });
7826 cursor_col = segment_start_col;
7827 }
7828 let segment_slice_end_col = segment_end_col.min(run_end_col);
7829 if segment_slice_end_col > cursor_col {
7830 let new_text_color =
7831 ensure_minimum_contrast(text_run.color, *segment_color, min_contrast);
7832 output_runs.push(TextRun {
7833 len: segment_slice_end_col - cursor_col,
7834 font: text_run.font.clone(),
7835 color: new_text_color,
7836 background_color: text_run.background_color,
7837 underline: text_run.underline,
7838 strikethrough: text_run.strikethrough,
7839 });
7840 cursor_col = segment_slice_end_col;
7841 }
7842 if segment_end_col >= run_end_col {
7843 break;
7844 }
7845 local_segment_ix += 1;
7846 }
7847 if cursor_col < run_end_col {
7848 output_runs.push(TextRun {
7849 len: run_end_col - cursor_col,
7850 font: text_run.font.clone(),
7851 color: text_run.color,
7852 background_color: text_run.background_color,
7853 underline: text_run.underline,
7854 strikethrough: text_run.strikethrough,
7855 });
7856 }
7857 line_col = run_end_col;
7858 segment_ix = local_segment_ix;
7859 }
7860 output_runs
7861 }
7862
7863 fn prepaint(
7864 &mut self,
7865 line_height: Pixels,
7866 scroll_pixel_position: gpui::Point<Pixels>,
7867 row: DisplayRow,
7868 content_origin: gpui::Point<Pixels>,
7869 line_elements: &mut SmallVec<[AnyElement; 1]>,
7870 window: &mut Window,
7871 cx: &mut App,
7872 ) {
7873 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
7874 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
7875 for fragment in &mut self.fragments {
7876 match fragment {
7877 LineFragment::Text(line) => {
7878 fragment_origin.x += line.width;
7879 }
7880 LineFragment::Element { element, size, .. } => {
7881 let mut element = element
7882 .take()
7883 .expect("you can't prepaint LineWithInvisibles twice");
7884
7885 // Center the element vertically within the line.
7886 let mut element_origin = fragment_origin;
7887 element_origin.y += (line_height - size.height) / 2.;
7888 element.prepaint_at(element_origin, window, cx);
7889 line_elements.push(element);
7890
7891 fragment_origin.x += size.width;
7892 }
7893 }
7894 }
7895 }
7896
7897 fn draw(
7898 &self,
7899 layout: &EditorLayout,
7900 row: DisplayRow,
7901 content_origin: gpui::Point<Pixels>,
7902 whitespace_setting: ShowWhitespaceSetting,
7903 selection_ranges: &[Range<DisplayPoint>],
7904 window: &mut Window,
7905 cx: &mut App,
7906 ) {
7907 let line_height = layout.position_map.line_height;
7908 let line_y = line_height
7909 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
7910
7911 let mut fragment_origin =
7912 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
7913
7914 for fragment in &self.fragments {
7915 match fragment {
7916 LineFragment::Text(line) => {
7917 line.paint(fragment_origin, line_height, window, cx)
7918 .log_err();
7919 fragment_origin.x += line.width;
7920 }
7921 LineFragment::Element { size, .. } => {
7922 fragment_origin.x += size.width;
7923 }
7924 }
7925 }
7926
7927 self.draw_invisibles(
7928 selection_ranges,
7929 layout,
7930 content_origin,
7931 line_y,
7932 row,
7933 line_height,
7934 whitespace_setting,
7935 window,
7936 cx,
7937 );
7938 }
7939
7940 fn draw_background(
7941 &self,
7942 layout: &EditorLayout,
7943 row: DisplayRow,
7944 content_origin: gpui::Point<Pixels>,
7945 window: &mut Window,
7946 cx: &mut App,
7947 ) {
7948 let line_height = layout.position_map.line_height;
7949 let line_y = line_height
7950 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
7951
7952 let mut fragment_origin =
7953 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
7954
7955 for fragment in &self.fragments {
7956 match fragment {
7957 LineFragment::Text(line) => {
7958 line.paint_background(fragment_origin, line_height, window, cx)
7959 .log_err();
7960 fragment_origin.x += line.width;
7961 }
7962 LineFragment::Element { size, .. } => {
7963 fragment_origin.x += size.width;
7964 }
7965 }
7966 }
7967 }
7968
7969 fn draw_invisibles(
7970 &self,
7971 selection_ranges: &[Range<DisplayPoint>],
7972 layout: &EditorLayout,
7973 content_origin: gpui::Point<Pixels>,
7974 line_y: Pixels,
7975 row: DisplayRow,
7976 line_height: Pixels,
7977 whitespace_setting: ShowWhitespaceSetting,
7978 window: &mut Window,
7979 cx: &mut App,
7980 ) {
7981 let extract_whitespace_info = |invisible: &Invisible| {
7982 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
7983 Invisible::Tab {
7984 line_start_offset,
7985 line_end_offset,
7986 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
7987 Invisible::Whitespace { line_offset } => {
7988 (*line_offset, line_offset + 1, &layout.space_invisible)
7989 }
7990 };
7991
7992 let x_offset = self.x_for_index(token_offset);
7993 let invisible_offset =
7994 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
7995 let origin = content_origin
7996 + gpui::point(
7997 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
7998 line_y,
7999 );
8000
8001 (
8002 [token_offset, token_end_offset],
8003 Box::new(move |window: &mut Window, cx: &mut App| {
8004 invisible_symbol
8005 .paint(origin, line_height, window, cx)
8006 .log_err();
8007 }),
8008 )
8009 };
8010
8011 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
8012 match whitespace_setting {
8013 ShowWhitespaceSetting::None => (),
8014 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
8015 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
8016 let invisible_point = DisplayPoint::new(row, start as u32);
8017 if !selection_ranges
8018 .iter()
8019 .any(|region| region.start <= invisible_point && invisible_point < region.end)
8020 {
8021 return;
8022 }
8023
8024 paint(window, cx);
8025 }),
8026
8027 ShowWhitespaceSetting::Trailing => {
8028 let mut previous_start = self.len;
8029 for ([start, end], paint) in invisible_iter.rev() {
8030 if previous_start != end {
8031 break;
8032 }
8033 previous_start = start;
8034 paint(window, cx);
8035 }
8036 }
8037
8038 // For a whitespace to be on a boundary, any of the following conditions need to be met:
8039 // - It is a tab
8040 // - It is adjacent to an edge (start or end)
8041 // - It is adjacent to a whitespace (left or right)
8042 ShowWhitespaceSetting::Boundary => {
8043 // 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
8044 // the above cases.
8045 // Note: We zip in the original `invisibles` to check for tab equality
8046 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
8047 for (([start, end], paint), invisible) in
8048 invisible_iter.zip_eq(self.invisibles.iter())
8049 {
8050 let should_render = match (&last_seen, invisible) {
8051 (_, Invisible::Tab { .. }) => true,
8052 (Some((_, last_end, _)), _) => *last_end == start,
8053 _ => false,
8054 };
8055
8056 if should_render || start == 0 || end == self.len {
8057 paint(window, cx);
8058
8059 // Since we are scanning from the left, we will skip over the first available whitespace that is part
8060 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
8061 if let Some((should_render_last, last_end, paint_last)) = last_seen {
8062 // Note that we need to make sure that the last one is actually adjacent
8063 if !should_render_last && last_end == start {
8064 paint_last(window, cx);
8065 }
8066 }
8067 }
8068
8069 // Manually render anything within a selection
8070 let invisible_point = DisplayPoint::new(row, start as u32);
8071 if selection_ranges.iter().any(|region| {
8072 region.start <= invisible_point && invisible_point < region.end
8073 }) {
8074 paint(window, cx);
8075 }
8076
8077 last_seen = Some((should_render, end, paint));
8078 }
8079 }
8080 }
8081 }
8082
8083 pub fn x_for_index(&self, index: usize) -> Pixels {
8084 let mut fragment_start_x = Pixels::ZERO;
8085 let mut fragment_start_index = 0;
8086
8087 for fragment in &self.fragments {
8088 match fragment {
8089 LineFragment::Text(shaped_line) => {
8090 let fragment_end_index = fragment_start_index + shaped_line.len;
8091 if index < fragment_end_index {
8092 return fragment_start_x
8093 + shaped_line.x_for_index(index - fragment_start_index);
8094 }
8095 fragment_start_x += shaped_line.width;
8096 fragment_start_index = fragment_end_index;
8097 }
8098 LineFragment::Element { len, size, .. } => {
8099 let fragment_end_index = fragment_start_index + len;
8100 if index < fragment_end_index {
8101 return fragment_start_x;
8102 }
8103 fragment_start_x += size.width;
8104 fragment_start_index = fragment_end_index;
8105 }
8106 }
8107 }
8108
8109 fragment_start_x
8110 }
8111
8112 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
8113 let mut fragment_start_x = Pixels::ZERO;
8114 let mut fragment_start_index = 0;
8115
8116 for fragment in &self.fragments {
8117 match fragment {
8118 LineFragment::Text(shaped_line) => {
8119 let fragment_end_x = fragment_start_x + shaped_line.width;
8120 if x < fragment_end_x {
8121 return Some(
8122 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
8123 );
8124 }
8125 fragment_start_x = fragment_end_x;
8126 fragment_start_index += shaped_line.len;
8127 }
8128 LineFragment::Element { len, size, .. } => {
8129 let fragment_end_x = fragment_start_x + size.width;
8130 if x < fragment_end_x {
8131 return Some(fragment_start_index);
8132 }
8133 fragment_start_index += len;
8134 fragment_start_x = fragment_end_x;
8135 }
8136 }
8137 }
8138
8139 None
8140 }
8141
8142 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
8143 let mut fragment_start_index = 0;
8144
8145 for fragment in &self.fragments {
8146 match fragment {
8147 LineFragment::Text(shaped_line) => {
8148 let fragment_end_index = fragment_start_index + shaped_line.len;
8149 if index < fragment_end_index {
8150 return shaped_line.font_id_for_index(index - fragment_start_index);
8151 }
8152 fragment_start_index = fragment_end_index;
8153 }
8154 LineFragment::Element { len, .. } => {
8155 let fragment_end_index = fragment_start_index + len;
8156 if index < fragment_end_index {
8157 return None;
8158 }
8159 fragment_start_index = fragment_end_index;
8160 }
8161 }
8162 }
8163
8164 None
8165 }
8166}
8167
8168#[derive(Debug, Clone, Copy, PartialEq, Eq)]
8169enum Invisible {
8170 /// A tab character
8171 ///
8172 /// A tab character is internally represented by spaces (configured by the user's tab width)
8173 /// aligned to the nearest column, so it's necessary to store the start and end offset for
8174 /// adjacency checks.
8175 Tab {
8176 line_start_offset: usize,
8177 line_end_offset: usize,
8178 },
8179 Whitespace {
8180 line_offset: usize,
8181 },
8182}
8183
8184impl EditorElement {
8185 /// Returns the rem size to use when rendering the [`EditorElement`].
8186 ///
8187 /// This allows UI elements to scale based on the `buffer_font_size`.
8188 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
8189 match self.editor.read(cx).mode {
8190 EditorMode::Full {
8191 scale_ui_elements_with_buffer_font_size: true,
8192 ..
8193 }
8194 | EditorMode::Minimap { .. } => {
8195 let buffer_font_size = self.style.text.font_size;
8196 match buffer_font_size {
8197 AbsoluteLength::Pixels(pixels) => {
8198 let rem_size_scale = {
8199 // Our default UI font size is 14px on a 16px base scale.
8200 // This means the default UI font size is 0.875rems.
8201 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
8202
8203 // We then determine the delta between a single rem and the default font
8204 // size scale.
8205 let default_font_size_delta = 1. - default_font_size_scale;
8206
8207 // Finally, we add this delta to 1rem to get the scale factor that
8208 // should be used to scale up the UI.
8209 1. + default_font_size_delta
8210 };
8211
8212 Some(pixels * rem_size_scale)
8213 }
8214 AbsoluteLength::Rems(rems) => {
8215 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
8216 }
8217 }
8218 }
8219 // We currently use single-line and auto-height editors in UI contexts,
8220 // so we don't want to scale everything with the buffer font size, as it
8221 // ends up looking off.
8222 _ => None,
8223 }
8224 }
8225
8226 fn editor_with_selections(&self, cx: &App) -> Option<Entity<Editor>> {
8227 if let EditorMode::Minimap { parent } = self.editor.read(cx).mode() {
8228 parent.upgrade()
8229 } else {
8230 Some(self.editor.clone())
8231 }
8232 }
8233}
8234
8235impl Element for EditorElement {
8236 type RequestLayoutState = ();
8237 type PrepaintState = EditorLayout;
8238
8239 fn id(&self) -> Option<ElementId> {
8240 None
8241 }
8242
8243 fn source_location(&self) -> Option<&'static core::panic::Location<'static>> {
8244 None
8245 }
8246
8247 fn request_layout(
8248 &mut self,
8249 _: Option<&GlobalElementId>,
8250 _inspector_id: Option<&gpui::InspectorElementId>,
8251 window: &mut Window,
8252 cx: &mut App,
8253 ) -> (gpui::LayoutId, ()) {
8254 let rem_size = self.rem_size(cx);
8255 window.with_rem_size(rem_size, |window| {
8256 self.editor.update(cx, |editor, cx| {
8257 editor.set_style(self.style.clone(), window, cx);
8258
8259 let layout_id = match editor.mode {
8260 EditorMode::SingleLine => {
8261 let rem_size = window.rem_size();
8262 let height = self.style.text.line_height_in_pixels(rem_size);
8263 let mut style = Style::default();
8264 style.size.height = height.into();
8265 style.size.width = relative(1.).into();
8266 window.request_layout(style, None, cx)
8267 }
8268 EditorMode::AutoHeight {
8269 min_lines,
8270 max_lines,
8271 } => {
8272 let editor_handle = cx.entity();
8273 let max_line_number_width =
8274 self.max_line_number_width(&editor.snapshot(window, cx), window);
8275 window.request_measured_layout(
8276 Style::default(),
8277 move |known_dimensions, available_space, window, cx| {
8278 editor_handle
8279 .update(cx, |editor, cx| {
8280 compute_auto_height_layout(
8281 editor,
8282 min_lines,
8283 max_lines,
8284 max_line_number_width,
8285 known_dimensions,
8286 available_space.width,
8287 window,
8288 cx,
8289 )
8290 })
8291 .unwrap_or_default()
8292 },
8293 )
8294 }
8295 EditorMode::Minimap { .. } => {
8296 let mut style = Style::default();
8297 style.size.width = relative(1.).into();
8298 style.size.height = relative(1.).into();
8299 window.request_layout(style, None, cx)
8300 }
8301 EditorMode::Full {
8302 sized_by_content, ..
8303 } => {
8304 let mut style = Style::default();
8305 style.size.width = relative(1.).into();
8306 if sized_by_content {
8307 let snapshot = editor.snapshot(window, cx);
8308 let line_height =
8309 self.style.text.line_height_in_pixels(window.rem_size());
8310 let scroll_height =
8311 (snapshot.max_point().row().next_row().0 as f32) * line_height;
8312 style.size.height = scroll_height.into();
8313 } else {
8314 style.size.height = relative(1.).into();
8315 }
8316 window.request_layout(style, None, cx)
8317 }
8318 };
8319
8320 (layout_id, ())
8321 })
8322 })
8323 }
8324
8325 fn prepaint(
8326 &mut self,
8327 _: Option<&GlobalElementId>,
8328 _inspector_id: Option<&gpui::InspectorElementId>,
8329 bounds: Bounds<Pixels>,
8330 _: &mut Self::RequestLayoutState,
8331 window: &mut Window,
8332 cx: &mut App,
8333 ) -> Self::PrepaintState {
8334 let text_style = TextStyleRefinement {
8335 font_size: Some(self.style.text.font_size),
8336 line_height: Some(self.style.text.line_height),
8337 ..Default::default()
8338 };
8339
8340 let is_minimap = self.editor.read(cx).mode.is_minimap();
8341
8342 if !is_minimap {
8343 let focus_handle = self.editor.focus_handle(cx);
8344 window.set_view_id(self.editor.entity_id());
8345 window.set_focus_handle(&focus_handle, cx);
8346 }
8347
8348 let rem_size = self.rem_size(cx);
8349 window.with_rem_size(rem_size, |window| {
8350 window.with_text_style(Some(text_style), |window| {
8351 window.with_content_mask(Some(ContentMask { bounds }), |window| {
8352 let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| {
8353 (editor.snapshot(window, cx), editor.read_only(cx))
8354 });
8355 let style = &self.style;
8356
8357 let rem_size = window.rem_size();
8358 let font_id = window.text_system().resolve_font(&style.text.font());
8359 let font_size = style.text.font_size.to_pixels(rem_size);
8360 let line_height = style.text.line_height_in_pixels(rem_size);
8361 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8362 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
8363 let glyph_grid_cell = size(em_advance, line_height);
8364
8365 let gutter_dimensions = snapshot
8366 .gutter_dimensions(
8367 font_id,
8368 font_size,
8369 self.max_line_number_width(&snapshot, window),
8370 cx,
8371 )
8372 .or_else(|| {
8373 self.editor.read(cx).offset_content.then(|| {
8374 GutterDimensions::default_with_margin(font_id, font_size, cx)
8375 })
8376 })
8377 .unwrap_or_default();
8378 let text_width = bounds.size.width - gutter_dimensions.width;
8379
8380 let settings = EditorSettings::get_global(cx);
8381 let scrollbars_shown = settings.scrollbar.show != ShowScrollbar::Never;
8382 let vertical_scrollbar_width = (scrollbars_shown
8383 && settings.scrollbar.axes.vertical
8384 && self.editor.read(cx).show_scrollbars.vertical)
8385 .then_some(style.scrollbar_width)
8386 .unwrap_or_default();
8387 let minimap_width = self
8388 .get_minimap_width(
8389 &settings.minimap,
8390 scrollbars_shown,
8391 text_width,
8392 em_width,
8393 font_size,
8394 rem_size,
8395 cx,
8396 )
8397 .unwrap_or_default();
8398
8399 let right_margin = minimap_width + vertical_scrollbar_width;
8400
8401 let editor_width =
8402 text_width - gutter_dimensions.margin - 2 * em_width - right_margin;
8403 let editor_margins = EditorMargins {
8404 gutter: gutter_dimensions,
8405 right: right_margin,
8406 };
8407
8408 snapshot = self.editor.update(cx, |editor, cx| {
8409 editor.last_bounds = Some(bounds);
8410 editor.gutter_dimensions = gutter_dimensions;
8411 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
8412 editor.set_visible_column_count(editor_width / em_advance);
8413
8414 if matches!(
8415 editor.mode,
8416 EditorMode::AutoHeight { .. } | EditorMode::Minimap { .. }
8417 ) {
8418 snapshot
8419 } else {
8420 let wrap_width_for = |column: u32| (column as f32 * em_advance).ceil();
8421 let wrap_width = match editor.soft_wrap_mode(cx) {
8422 SoftWrap::GitDiff => None,
8423 SoftWrap::None => Some(wrap_width_for(MAX_LINE_LEN as u32 / 2)),
8424 SoftWrap::EditorWidth => Some(editor_width),
8425 SoftWrap::Column(column) => Some(wrap_width_for(column)),
8426 SoftWrap::Bounded(column) => {
8427 Some(editor_width.min(wrap_width_for(column)))
8428 }
8429 };
8430
8431 if editor.set_wrap_width(wrap_width, cx) {
8432 editor.snapshot(window, cx)
8433 } else {
8434 snapshot
8435 }
8436 }
8437 });
8438
8439 let hitbox = window.insert_hitbox(bounds, HitboxBehavior::Normal);
8440 let gutter_hitbox = window.insert_hitbox(
8441 gutter_bounds(bounds, gutter_dimensions),
8442 HitboxBehavior::Normal,
8443 );
8444 let text_hitbox = window.insert_hitbox(
8445 Bounds {
8446 origin: gutter_hitbox.top_right(),
8447 size: size(text_width, bounds.size.height),
8448 },
8449 HitboxBehavior::Normal,
8450 );
8451
8452 // Offset the content_bounds from the text_bounds by the gutter margin (which
8453 // is roughly half a character wide) to make hit testing work more like how we want.
8454 let content_offset = point(editor_margins.gutter.margin, Pixels::ZERO);
8455 let content_origin = text_hitbox.origin + content_offset;
8456
8457 let height_in_lines = bounds.size.height / line_height;
8458 let max_row = snapshot.max_point().row().as_f32();
8459
8460 // The max scroll position for the top of the window
8461 let max_scroll_top = if matches!(
8462 snapshot.mode,
8463 EditorMode::SingleLine
8464 | EditorMode::AutoHeight { .. }
8465 | EditorMode::Full {
8466 sized_by_content: true,
8467 ..
8468 }
8469 ) {
8470 (max_row - height_in_lines + 1.).max(0.)
8471 } else {
8472 let settings = EditorSettings::get_global(cx);
8473 match settings.scroll_beyond_last_line {
8474 ScrollBeyondLastLine::OnePage => max_row,
8475 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
8476 ScrollBeyondLastLine::VerticalScrollMargin => {
8477 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
8478 .max(0.)
8479 }
8480 }
8481 };
8482
8483 let (
8484 autoscroll_request,
8485 autoscroll_containing_element,
8486 needs_horizontal_autoscroll,
8487 ) = self.editor.update(cx, |editor, cx| {
8488 let autoscroll_request = editor.scroll_manager.take_autoscroll_request();
8489
8490 let autoscroll_containing_element =
8491 autoscroll_request.is_some() || editor.has_pending_selection();
8492
8493 let (needs_horizontal_autoscroll, was_scrolled) = editor
8494 .autoscroll_vertically(
8495 bounds,
8496 line_height,
8497 max_scroll_top,
8498 autoscroll_request,
8499 window,
8500 cx,
8501 );
8502 if was_scrolled.0 {
8503 snapshot = editor.snapshot(window, cx);
8504 }
8505 (
8506 autoscroll_request,
8507 autoscroll_containing_element,
8508 needs_horizontal_autoscroll,
8509 )
8510 });
8511
8512 let mut scroll_position = snapshot.scroll_position();
8513 // The scroll position is a fractional point, the whole number of which represents
8514 // the top of the window in terms of display rows.
8515 let start_row = DisplayRow(scroll_position.y as u32);
8516 let max_row = snapshot.max_point().row();
8517 let end_row = cmp::min(
8518 (scroll_position.y + height_in_lines).ceil() as u32,
8519 max_row.next_row().0,
8520 );
8521 let end_row = DisplayRow(end_row);
8522
8523 let row_infos = snapshot
8524 .row_infos(start_row)
8525 .take((start_row..end_row).len())
8526 .collect::<Vec<RowInfo>>();
8527 let is_row_soft_wrapped = |row: usize| {
8528 row_infos
8529 .get(row)
8530 .is_none_or(|info| info.buffer_row.is_none())
8531 };
8532
8533 let start_anchor = if start_row == Default::default() {
8534 Anchor::min()
8535 } else {
8536 snapshot.buffer_snapshot.anchor_before(
8537 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
8538 )
8539 };
8540 let end_anchor = if end_row > max_row {
8541 Anchor::max()
8542 } else {
8543 snapshot.buffer_snapshot.anchor_before(
8544 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
8545 )
8546 };
8547
8548 let mut highlighted_rows = self
8549 .editor
8550 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
8551
8552 let is_light = cx.theme().appearance().is_light();
8553
8554 for (ix, row_info) in row_infos.iter().enumerate() {
8555 let Some(diff_status) = row_info.diff_status else {
8556 continue;
8557 };
8558
8559 let background_color = match diff_status.kind {
8560 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
8561 DiffHunkStatusKind::Deleted => {
8562 cx.theme().colors().version_control_deleted
8563 }
8564 DiffHunkStatusKind::Modified => {
8565 debug_panic!("modified diff status for row info");
8566 continue;
8567 }
8568 };
8569
8570 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
8571
8572 let hollow_highlight = LineHighlight {
8573 background: (background_color.opacity(if is_light {
8574 0.08
8575 } else {
8576 0.06
8577 }))
8578 .into(),
8579 border: Some(if is_light {
8580 background_color.opacity(0.48)
8581 } else {
8582 background_color.opacity(0.36)
8583 }),
8584 include_gutter: true,
8585 type_id: None,
8586 };
8587
8588 let filled_highlight = LineHighlight {
8589 background: solid_background(background_color.opacity(hunk_opacity)),
8590 border: None,
8591 include_gutter: true,
8592 type_id: None,
8593 };
8594
8595 let background = if Self::diff_hunk_hollow(diff_status, cx) {
8596 hollow_highlight
8597 } else {
8598 filled_highlight
8599 };
8600
8601 highlighted_rows
8602 .entry(start_row + DisplayRow(ix as u32))
8603 .or_insert(background);
8604 }
8605
8606 let highlighted_ranges = self
8607 .editor_with_selections(cx)
8608 .map(|editor| {
8609 editor.read(cx).background_highlights_in_range(
8610 start_anchor..end_anchor,
8611 &snapshot.display_snapshot,
8612 cx.theme(),
8613 )
8614 })
8615 .unwrap_or_default();
8616 let highlighted_gutter_ranges =
8617 self.editor.read(cx).gutter_highlights_in_range(
8618 start_anchor..end_anchor,
8619 &snapshot.display_snapshot,
8620 cx,
8621 );
8622
8623 let document_colors = self
8624 .editor
8625 .read(cx)
8626 .colors
8627 .as_ref()
8628 .map(|colors| colors.editor_display_highlights(&snapshot));
8629 let redacted_ranges = self.editor.read(cx).redacted_ranges(
8630 start_anchor..end_anchor,
8631 &snapshot.display_snapshot,
8632 cx,
8633 );
8634
8635 let (local_selections, selected_buffer_ids): (
8636 Vec<Selection<Point>>,
8637 Vec<BufferId>,
8638 ) = self
8639 .editor_with_selections(cx)
8640 .map(|editor| {
8641 editor.update(cx, |editor, cx| {
8642 let all_selections = editor.selections.all::<Point>(cx);
8643 let selected_buffer_ids = if editor.is_singleton(cx) {
8644 Vec::new()
8645 } else {
8646 let mut selected_buffer_ids =
8647 Vec::with_capacity(all_selections.len());
8648
8649 for selection in all_selections {
8650 for buffer_id in snapshot
8651 .buffer_snapshot
8652 .buffer_ids_for_range(selection.range())
8653 {
8654 if selected_buffer_ids.last() != Some(&buffer_id) {
8655 selected_buffer_ids.push(buffer_id);
8656 }
8657 }
8658 }
8659
8660 selected_buffer_ids
8661 };
8662
8663 let mut selections = editor
8664 .selections
8665 .disjoint_in_range(start_anchor..end_anchor, cx);
8666 selections.extend(editor.selections.pending(cx));
8667
8668 (selections, selected_buffer_ids)
8669 })
8670 })
8671 .unwrap_or_default();
8672
8673 let (selections, mut active_rows, newest_selection_head) = self
8674 .layout_selections(
8675 start_anchor,
8676 end_anchor,
8677 &local_selections,
8678 &snapshot,
8679 start_row,
8680 end_row,
8681 window,
8682 cx,
8683 );
8684 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
8685 editor.active_breakpoints(start_row..end_row, window, cx)
8686 });
8687 for (display_row, (_, bp, state)) in &breakpoint_rows {
8688 if bp.is_enabled() && state.is_none_or(|s| s.verified) {
8689 active_rows.entry(*display_row).or_default().breakpoint = true;
8690 }
8691 }
8692
8693 let line_numbers = self.layout_line_numbers(
8694 Some(&gutter_hitbox),
8695 gutter_dimensions,
8696 line_height,
8697 scroll_position,
8698 start_row..end_row,
8699 &row_infos,
8700 &active_rows,
8701 newest_selection_head,
8702 &snapshot,
8703 window,
8704 cx,
8705 );
8706
8707 // We add the gutter breakpoint indicator to breakpoint_rows after painting
8708 // line numbers so we don't paint a line number debug accent color if a user
8709 // has their mouse over that line when a breakpoint isn't there
8710 self.editor.update(cx, |editor, _| {
8711 if let Some(phantom_breakpoint) = &mut editor
8712 .gutter_breakpoint_indicator
8713 .0
8714 .filter(|phantom_breakpoint| phantom_breakpoint.is_active)
8715 {
8716 // Is there a non-phantom breakpoint on this line?
8717 phantom_breakpoint.collides_with_existing_breakpoint = true;
8718 breakpoint_rows
8719 .entry(phantom_breakpoint.display_row)
8720 .or_insert_with(|| {
8721 let position = snapshot.display_point_to_anchor(
8722 DisplayPoint::new(phantom_breakpoint.display_row, 0),
8723 Bias::Right,
8724 );
8725 let breakpoint = Breakpoint::new_standard();
8726 phantom_breakpoint.collides_with_existing_breakpoint = false;
8727 (position, breakpoint, None)
8728 });
8729 }
8730 });
8731
8732 let mut expand_toggles =
8733 window.with_element_namespace("expand_toggles", |window| {
8734 self.layout_expand_toggles(
8735 &gutter_hitbox,
8736 gutter_dimensions,
8737 em_width,
8738 line_height,
8739 scroll_position,
8740 &row_infos,
8741 window,
8742 cx,
8743 )
8744 });
8745
8746 let mut crease_toggles =
8747 window.with_element_namespace("crease_toggles", |window| {
8748 self.layout_crease_toggles(
8749 start_row..end_row,
8750 &row_infos,
8751 &active_rows,
8752 &snapshot,
8753 window,
8754 cx,
8755 )
8756 });
8757 let crease_trailers =
8758 window.with_element_namespace("crease_trailers", |window| {
8759 self.layout_crease_trailers(
8760 row_infos.iter().copied(),
8761 &snapshot,
8762 window,
8763 cx,
8764 )
8765 });
8766
8767 let display_hunks = self.layout_gutter_diff_hunks(
8768 line_height,
8769 &gutter_hitbox,
8770 start_row..end_row,
8771 &snapshot,
8772 window,
8773 cx,
8774 );
8775
8776 let bg_segments_per_row = Self::bg_segments_per_row(
8777 start_row..end_row,
8778 &selections,
8779 &highlighted_ranges,
8780 self.style.background,
8781 );
8782
8783 let mut line_layouts = Self::layout_lines(
8784 start_row..end_row,
8785 &snapshot,
8786 &self.style,
8787 editor_width,
8788 is_row_soft_wrapped,
8789 &bg_segments_per_row,
8790 window,
8791 cx,
8792 );
8793 let new_renderer_widths = (!is_minimap).then(|| {
8794 line_layouts
8795 .iter()
8796 .flat_map(|layout| &layout.fragments)
8797 .filter_map(|fragment| {
8798 if let LineFragment::Element { id, size, .. } = fragment {
8799 Some((*id, size.width))
8800 } else {
8801 None
8802 }
8803 })
8804 });
8805 if new_renderer_widths.is_some_and(|new_renderer_widths| {
8806 self.editor.update(cx, |editor, cx| {
8807 editor.update_renderer_widths(new_renderer_widths, cx)
8808 })
8809 }) {
8810 // If the fold widths have changed, we need to prepaint
8811 // the element again to account for any changes in
8812 // wrapping.
8813 return self.prepaint(None, _inspector_id, bounds, &mut (), window, cx);
8814 }
8815
8816 let longest_line_blame_width = self
8817 .editor
8818 .update(cx, |editor, cx| {
8819 if !editor.show_git_blame_inline {
8820 return None;
8821 }
8822 let blame = editor.blame.as_ref()?;
8823 let (_, blame_entry) = blame
8824 .update(cx, |blame, cx| {
8825 let row_infos =
8826 snapshot.row_infos(snapshot.longest_row()).next()?;
8827 blame.blame_for_rows(&[row_infos], cx).next()
8828 })
8829 .flatten()?;
8830 let mut element = render_inline_blame_entry(blame_entry, style, cx)?;
8831 let inline_blame_padding =
8832 ProjectSettings::get_global(cx).git.inline_blame.padding as f32
8833 * em_advance;
8834 Some(
8835 element
8836 .layout_as_root(AvailableSpace::min_size(), window, cx)
8837 .width
8838 + inline_blame_padding,
8839 )
8840 })
8841 .unwrap_or(Pixels::ZERO);
8842
8843 let longest_line_width = layout_line(
8844 snapshot.longest_row(),
8845 &snapshot,
8846 style,
8847 editor_width,
8848 is_row_soft_wrapped,
8849 window,
8850 cx,
8851 )
8852 .width;
8853
8854 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
8855 text_hitbox.bounds,
8856 glyph_grid_cell,
8857 size(longest_line_width, max_row.as_f32() * line_height),
8858 longest_line_blame_width,
8859 EditorSettings::get_global(cx),
8860 );
8861
8862 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
8863
8864 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
8865 snapshot.sticky_header_excerpt(scroll_position.y)
8866 } else {
8867 None
8868 };
8869 let sticky_header_excerpt_id =
8870 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
8871
8872 let blocks = (!is_minimap)
8873 .then(|| {
8874 window.with_element_namespace("blocks", |window| {
8875 self.render_blocks(
8876 start_row..end_row,
8877 &snapshot,
8878 &hitbox,
8879 &text_hitbox,
8880 editor_width,
8881 &mut scroll_width,
8882 &editor_margins,
8883 em_width,
8884 gutter_dimensions.full_width(),
8885 line_height,
8886 &mut line_layouts,
8887 &local_selections,
8888 &selected_buffer_ids,
8889 is_row_soft_wrapped,
8890 sticky_header_excerpt_id,
8891 window,
8892 cx,
8893 )
8894 })
8895 })
8896 .unwrap_or_else(|| Ok((Vec::default(), HashMap::default())));
8897 let (mut blocks, row_block_types) = match blocks {
8898 Ok(blocks) => blocks,
8899 Err(resized_blocks) => {
8900 self.editor.update(cx, |editor, cx| {
8901 editor.resize_blocks(
8902 resized_blocks,
8903 autoscroll_request.map(|(autoscroll, _)| autoscroll),
8904 cx,
8905 )
8906 });
8907 return self.prepaint(None, _inspector_id, bounds, &mut (), window, cx);
8908 }
8909 };
8910
8911 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
8912 window.with_element_namespace("blocks", |window| {
8913 self.layout_sticky_buffer_header(
8914 sticky_header_excerpt,
8915 scroll_position.y,
8916 line_height,
8917 right_margin,
8918 &snapshot,
8919 &hitbox,
8920 &selected_buffer_ids,
8921 &blocks,
8922 window,
8923 cx,
8924 )
8925 })
8926 });
8927
8928 let start_buffer_row =
8929 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
8930 let end_buffer_row =
8931 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
8932
8933 let scroll_max = point(
8934 ((scroll_width - editor_width) / em_advance).max(0.0),
8935 max_scroll_top,
8936 );
8937
8938 self.editor.update(cx, |editor, cx| {
8939 if editor.scroll_manager.clamp_scroll_left(scroll_max.x) {
8940 scroll_position.x = scroll_position.x.min(scroll_max.x);
8941 }
8942
8943 if needs_horizontal_autoscroll.0
8944 && let Some(new_scroll_position) = editor.autoscroll_horizontally(
8945 start_row,
8946 editor_width,
8947 scroll_width,
8948 em_advance,
8949 &line_layouts,
8950 autoscroll_request,
8951 window,
8952 cx,
8953 )
8954 {
8955 scroll_position = new_scroll_position;
8956 }
8957 });
8958
8959 let scroll_pixel_position = point(
8960 scroll_position.x * em_advance,
8961 scroll_position.y * line_height,
8962 );
8963 let indent_guides = self.layout_indent_guides(
8964 content_origin,
8965 text_hitbox.origin,
8966 start_buffer_row..end_buffer_row,
8967 scroll_pixel_position,
8968 line_height,
8969 &snapshot,
8970 window,
8971 cx,
8972 );
8973
8974 let crease_trailers =
8975 window.with_element_namespace("crease_trailers", |window| {
8976 self.prepaint_crease_trailers(
8977 crease_trailers,
8978 &line_layouts,
8979 line_height,
8980 content_origin,
8981 scroll_pixel_position,
8982 em_width,
8983 window,
8984 cx,
8985 )
8986 });
8987
8988 let (edit_prediction_popover, edit_prediction_popover_origin) = self
8989 .editor
8990 .update(cx, |editor, cx| {
8991 editor.render_edit_prediction_popover(
8992 &text_hitbox.bounds,
8993 content_origin,
8994 right_margin,
8995 &snapshot,
8996 start_row..end_row,
8997 scroll_position.y,
8998 scroll_position.y + height_in_lines,
8999 &line_layouts,
9000 line_height,
9001 scroll_pixel_position,
9002 newest_selection_head,
9003 editor_width,
9004 style,
9005 window,
9006 cx,
9007 )
9008 })
9009 .unzip();
9010
9011 let mut inline_diagnostics = self.layout_inline_diagnostics(
9012 &line_layouts,
9013 &crease_trailers,
9014 &row_block_types,
9015 content_origin,
9016 scroll_pixel_position,
9017 edit_prediction_popover_origin,
9018 start_row,
9019 end_row,
9020 line_height,
9021 em_width,
9022 style,
9023 window,
9024 cx,
9025 );
9026
9027 let mut inline_blame_layout = None;
9028 let mut inline_code_actions = None;
9029 if let Some(newest_selection_head) = newest_selection_head {
9030 let display_row = newest_selection_head.row();
9031 if (start_row..end_row).contains(&display_row)
9032 && !row_block_types.contains_key(&display_row)
9033 {
9034 inline_code_actions = self.layout_inline_code_actions(
9035 newest_selection_head,
9036 content_origin,
9037 scroll_pixel_position,
9038 line_height,
9039 &snapshot,
9040 window,
9041 cx,
9042 );
9043
9044 let line_ix = display_row.minus(start_row) as usize;
9045 if let (Some(row_info), Some(line_layout), Some(crease_trailer)) = (
9046 row_infos.get(line_ix),
9047 line_layouts.get(line_ix),
9048 crease_trailers.get(line_ix),
9049 ) {
9050 let crease_trailer_layout = crease_trailer.as_ref();
9051 if let Some(layout) = self.layout_inline_blame(
9052 display_row,
9053 row_info,
9054 line_layout,
9055 crease_trailer_layout,
9056 em_width,
9057 content_origin,
9058 scroll_pixel_position,
9059 line_height,
9060 &text_hitbox,
9061 window,
9062 cx,
9063 ) {
9064 inline_blame_layout = Some(layout);
9065 // Blame overrides inline diagnostics
9066 inline_diagnostics.remove(&display_row);
9067 }
9068 } else {
9069 log::error!(
9070 "bug: line_ix {} is out of bounds - row_infos.len(): {}, \
9071 line_layouts.len(): {}, \
9072 crease_trailers.len(): {}",
9073 line_ix,
9074 row_infos.len(),
9075 line_layouts.len(),
9076 crease_trailers.len(),
9077 );
9078 }
9079 }
9080 }
9081
9082 let blamed_display_rows = self.layout_blame_entries(
9083 &row_infos,
9084 em_width,
9085 scroll_position,
9086 line_height,
9087 &gutter_hitbox,
9088 gutter_dimensions.git_blame_entries_width,
9089 window,
9090 cx,
9091 );
9092
9093 let line_elements = self.prepaint_lines(
9094 start_row,
9095 &mut line_layouts,
9096 line_height,
9097 scroll_pixel_position,
9098 content_origin,
9099 window,
9100 cx,
9101 );
9102
9103 window.with_element_namespace("blocks", |window| {
9104 self.layout_blocks(
9105 &mut blocks,
9106 &hitbox,
9107 line_height,
9108 scroll_pixel_position,
9109 window,
9110 cx,
9111 );
9112 });
9113
9114 let cursors = self.collect_cursors(&snapshot, cx);
9115 let visible_row_range = start_row..end_row;
9116 let non_visible_cursors = cursors
9117 .iter()
9118 .any(|c| !visible_row_range.contains(&c.0.row()));
9119
9120 let visible_cursors = self.layout_visible_cursors(
9121 &snapshot,
9122 &selections,
9123 &row_block_types,
9124 start_row..end_row,
9125 &line_layouts,
9126 &text_hitbox,
9127 content_origin,
9128 scroll_position,
9129 scroll_pixel_position,
9130 line_height,
9131 em_width,
9132 em_advance,
9133 autoscroll_containing_element,
9134 window,
9135 cx,
9136 );
9137
9138 let scrollbars_layout = self.layout_scrollbars(
9139 &snapshot,
9140 &scrollbar_layout_information,
9141 content_offset,
9142 scroll_position,
9143 non_visible_cursors,
9144 right_margin,
9145 editor_width,
9146 window,
9147 cx,
9148 );
9149
9150 let gutter_settings = EditorSettings::get_global(cx).gutter;
9151
9152 let context_menu_layout =
9153 if let Some(newest_selection_head) = newest_selection_head {
9154 let newest_selection_point =
9155 newest_selection_head.to_point(&snapshot.display_snapshot);
9156 if (start_row..end_row).contains(&newest_selection_head.row()) {
9157 self.layout_cursor_popovers(
9158 line_height,
9159 &text_hitbox,
9160 content_origin,
9161 right_margin,
9162 start_row,
9163 scroll_pixel_position,
9164 &line_layouts,
9165 newest_selection_head,
9166 newest_selection_point,
9167 style,
9168 window,
9169 cx,
9170 )
9171 } else {
9172 None
9173 }
9174 } else {
9175 None
9176 };
9177
9178 self.layout_gutter_menu(
9179 line_height,
9180 &text_hitbox,
9181 content_origin,
9182 right_margin,
9183 scroll_pixel_position,
9184 gutter_dimensions.width - gutter_dimensions.left_padding,
9185 window,
9186 cx,
9187 );
9188
9189 let test_indicators = if gutter_settings.runnables {
9190 self.layout_run_indicators(
9191 line_height,
9192 start_row..end_row,
9193 &row_infos,
9194 scroll_pixel_position,
9195 &gutter_dimensions,
9196 &gutter_hitbox,
9197 &display_hunks,
9198 &snapshot,
9199 &mut breakpoint_rows,
9200 window,
9201 cx,
9202 )
9203 } else {
9204 Vec::new()
9205 };
9206
9207 let show_breakpoints = snapshot
9208 .show_breakpoints
9209 .unwrap_or(gutter_settings.breakpoints);
9210 let breakpoints = if show_breakpoints {
9211 self.layout_breakpoints(
9212 line_height,
9213 start_row..end_row,
9214 scroll_pixel_position,
9215 &gutter_dimensions,
9216 &gutter_hitbox,
9217 &display_hunks,
9218 &snapshot,
9219 breakpoint_rows,
9220 &row_infos,
9221 window,
9222 cx,
9223 )
9224 } else {
9225 Vec::new()
9226 };
9227
9228 self.layout_signature_help(
9229 &hitbox,
9230 content_origin,
9231 scroll_pixel_position,
9232 newest_selection_head,
9233 start_row,
9234 &line_layouts,
9235 line_height,
9236 em_width,
9237 context_menu_layout,
9238 window,
9239 cx,
9240 );
9241
9242 if !cx.has_active_drag() {
9243 self.layout_hover_popovers(
9244 &snapshot,
9245 &hitbox,
9246 start_row..end_row,
9247 content_origin,
9248 scroll_pixel_position,
9249 &line_layouts,
9250 line_height,
9251 em_width,
9252 context_menu_layout,
9253 window,
9254 cx,
9255 );
9256 }
9257
9258 let mouse_context_menu = self.layout_mouse_context_menu(
9259 &snapshot,
9260 start_row..end_row,
9261 content_origin,
9262 window,
9263 cx,
9264 );
9265
9266 window.with_element_namespace("crease_toggles", |window| {
9267 self.prepaint_crease_toggles(
9268 &mut crease_toggles,
9269 line_height,
9270 &gutter_dimensions,
9271 gutter_settings,
9272 scroll_pixel_position,
9273 &gutter_hitbox,
9274 window,
9275 cx,
9276 )
9277 });
9278
9279 window.with_element_namespace("expand_toggles", |window| {
9280 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
9281 });
9282
9283 let wrap_guides = self.layout_wrap_guides(
9284 em_advance,
9285 scroll_position,
9286 content_origin,
9287 scrollbars_layout.as_ref(),
9288 vertical_scrollbar_width,
9289 &hitbox,
9290 window,
9291 cx,
9292 );
9293
9294 let minimap = window.with_element_namespace("minimap", |window| {
9295 self.layout_minimap(
9296 &snapshot,
9297 minimap_width,
9298 scroll_position,
9299 &scrollbar_layout_information,
9300 scrollbars_layout.as_ref(),
9301 window,
9302 cx,
9303 )
9304 });
9305
9306 let invisible_symbol_font_size = font_size / 2.;
9307 let whitespace_map = &self
9308 .editor
9309 .read(cx)
9310 .buffer
9311 .read(cx)
9312 .language_settings(cx)
9313 .whitespace_map;
9314
9315 let tab_char = whitespace_map.tab();
9316 let tab_len = tab_char.len();
9317 let tab_invisible = window.text_system().shape_line(
9318 tab_char,
9319 invisible_symbol_font_size,
9320 &[TextRun {
9321 len: tab_len,
9322 font: self.style.text.font(),
9323 color: cx.theme().colors().editor_invisible,
9324 background_color: None,
9325 underline: None,
9326 strikethrough: None,
9327 }],
9328 None,
9329 );
9330
9331 let space_char = whitespace_map.space();
9332 let space_len = space_char.len();
9333 let space_invisible = window.text_system().shape_line(
9334 space_char,
9335 invisible_symbol_font_size,
9336 &[TextRun {
9337 len: space_len,
9338 font: self.style.text.font(),
9339 color: cx.theme().colors().editor_invisible,
9340 background_color: None,
9341 underline: None,
9342 strikethrough: None,
9343 }],
9344 None,
9345 );
9346
9347 let mode = snapshot.mode.clone();
9348
9349 let (diff_hunk_controls, diff_hunk_control_bounds) = if is_read_only {
9350 (vec![], vec![])
9351 } else {
9352 self.layout_diff_hunk_controls(
9353 start_row..end_row,
9354 &row_infos,
9355 &text_hitbox,
9356 newest_selection_head,
9357 line_height,
9358 right_margin,
9359 scroll_pixel_position,
9360 &display_hunks,
9361 &highlighted_rows,
9362 self.editor.clone(),
9363 window,
9364 cx,
9365 )
9366 };
9367
9368 let position_map = Rc::new(PositionMap {
9369 size: bounds.size,
9370 visible_row_range,
9371 scroll_pixel_position,
9372 scroll_max,
9373 line_layouts,
9374 line_height,
9375 em_width,
9376 em_advance,
9377 snapshot,
9378 gutter_hitbox: gutter_hitbox.clone(),
9379 text_hitbox: text_hitbox.clone(),
9380 inline_blame_bounds: inline_blame_layout
9381 .as_ref()
9382 .map(|layout| (layout.bounds, layout.buffer_id, layout.entry.clone())),
9383 display_hunks: display_hunks.clone(),
9384 diff_hunk_control_bounds,
9385 });
9386
9387 self.editor.update(cx, |editor, _| {
9388 editor.last_position_map = Some(position_map.clone())
9389 });
9390
9391 EditorLayout {
9392 mode,
9393 position_map,
9394 visible_display_row_range: start_row..end_row,
9395 wrap_guides,
9396 indent_guides,
9397 hitbox,
9398 gutter_hitbox,
9399 display_hunks,
9400 content_origin,
9401 scrollbars_layout,
9402 minimap,
9403 active_rows,
9404 highlighted_rows,
9405 highlighted_ranges,
9406 highlighted_gutter_ranges,
9407 redacted_ranges,
9408 document_colors,
9409 line_elements,
9410 line_numbers,
9411 blamed_display_rows,
9412 inline_diagnostics,
9413 inline_blame_layout,
9414 inline_code_actions,
9415 blocks,
9416 cursors,
9417 visible_cursors,
9418 selections,
9419 edit_prediction_popover,
9420 diff_hunk_controls,
9421 mouse_context_menu,
9422 test_indicators,
9423 breakpoints,
9424 crease_toggles,
9425 crease_trailers,
9426 tab_invisible,
9427 space_invisible,
9428 sticky_buffer_header,
9429 expand_toggles,
9430 }
9431 })
9432 })
9433 })
9434 }
9435
9436 fn paint(
9437 &mut self,
9438 _: Option<&GlobalElementId>,
9439 _inspector_id: Option<&gpui::InspectorElementId>,
9440 bounds: Bounds<gpui::Pixels>,
9441 _: &mut Self::RequestLayoutState,
9442 layout: &mut Self::PrepaintState,
9443 window: &mut Window,
9444 cx: &mut App,
9445 ) {
9446 if !layout.mode.is_minimap() {
9447 let focus_handle = self.editor.focus_handle(cx);
9448 let key_context = self
9449 .editor
9450 .update(cx, |editor, cx| editor.key_context(window, cx));
9451
9452 window.set_key_context(key_context);
9453 window.handle_input(
9454 &focus_handle,
9455 ElementInputHandler::new(bounds, self.editor.clone()),
9456 cx,
9457 );
9458 self.register_actions(window, cx);
9459 self.register_key_listeners(window, cx, layout);
9460 }
9461
9462 let text_style = TextStyleRefinement {
9463 font_size: Some(self.style.text.font_size),
9464 line_height: Some(self.style.text.line_height),
9465 ..Default::default()
9466 };
9467 let rem_size = self.rem_size(cx);
9468 window.with_rem_size(rem_size, |window| {
9469 window.with_text_style(Some(text_style), |window| {
9470 window.with_content_mask(Some(ContentMask { bounds }), |window| {
9471 self.paint_mouse_listeners(layout, window, cx);
9472 self.paint_background(layout, window, cx);
9473 self.paint_indent_guides(layout, window, cx);
9474
9475 if layout.gutter_hitbox.size.width > Pixels::ZERO {
9476 self.paint_blamed_display_rows(layout, window, cx);
9477 self.paint_line_numbers(layout, window, cx);
9478 }
9479
9480 self.paint_text(layout, window, cx);
9481
9482 if layout.gutter_hitbox.size.width > Pixels::ZERO {
9483 self.paint_gutter_highlights(layout, window, cx);
9484 self.paint_gutter_indicators(layout, window, cx);
9485 }
9486
9487 if !layout.blocks.is_empty() {
9488 window.with_element_namespace("blocks", |window| {
9489 self.paint_blocks(layout, window, cx);
9490 });
9491 }
9492
9493 window.with_element_namespace("blocks", |window| {
9494 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
9495 sticky_header.paint(window, cx)
9496 }
9497 });
9498
9499 self.paint_minimap(layout, window, cx);
9500 self.paint_scrollbars(layout, window, cx);
9501 self.paint_edit_prediction_popover(layout, window, cx);
9502 self.paint_mouse_context_menu(layout, window, cx);
9503 });
9504 })
9505 })
9506 }
9507}
9508
9509pub(super) fn gutter_bounds(
9510 editor_bounds: Bounds<Pixels>,
9511 gutter_dimensions: GutterDimensions,
9512) -> Bounds<Pixels> {
9513 Bounds {
9514 origin: editor_bounds.origin,
9515 size: size(gutter_dimensions.width, editor_bounds.size.height),
9516 }
9517}
9518
9519#[derive(Clone, Copy)]
9520struct ContextMenuLayout {
9521 y_flipped: bool,
9522 bounds: Bounds<Pixels>,
9523}
9524
9525/// Holds information required for layouting the editor scrollbars.
9526struct ScrollbarLayoutInformation {
9527 /// The bounds of the editor area (excluding the content offset).
9528 editor_bounds: Bounds<Pixels>,
9529 /// The available range to scroll within the document.
9530 scroll_range: Size<Pixels>,
9531 /// The space available for one glyph in the editor.
9532 glyph_grid_cell: Size<Pixels>,
9533}
9534
9535impl ScrollbarLayoutInformation {
9536 pub fn new(
9537 editor_bounds: Bounds<Pixels>,
9538 glyph_grid_cell: Size<Pixels>,
9539 document_size: Size<Pixels>,
9540 longest_line_blame_width: Pixels,
9541 settings: &EditorSettings,
9542 ) -> Self {
9543 let vertical_overscroll = match settings.scroll_beyond_last_line {
9544 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
9545 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
9546 ScrollBeyondLastLine::VerticalScrollMargin => {
9547 (1.0 + settings.vertical_scroll_margin) * glyph_grid_cell.height
9548 }
9549 };
9550
9551 let overscroll = size(longest_line_blame_width, vertical_overscroll);
9552
9553 ScrollbarLayoutInformation {
9554 editor_bounds,
9555 scroll_range: document_size + overscroll,
9556 glyph_grid_cell,
9557 }
9558 }
9559}
9560
9561impl IntoElement for EditorElement {
9562 type Element = Self;
9563
9564 fn into_element(self) -> Self::Element {
9565 self
9566 }
9567}
9568
9569pub struct EditorLayout {
9570 position_map: Rc<PositionMap>,
9571 hitbox: Hitbox,
9572 gutter_hitbox: Hitbox,
9573 content_origin: gpui::Point<Pixels>,
9574 scrollbars_layout: Option<EditorScrollbars>,
9575 minimap: Option<MinimapLayout>,
9576 mode: EditorMode,
9577 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
9578 indent_guides: Option<Vec<IndentGuideLayout>>,
9579 visible_display_row_range: Range<DisplayRow>,
9580 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
9581 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
9582 line_elements: SmallVec<[AnyElement; 1]>,
9583 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
9584 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
9585 blamed_display_rows: Option<Vec<AnyElement>>,
9586 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
9587 inline_blame_layout: Option<InlineBlameLayout>,
9588 inline_code_actions: Option<AnyElement>,
9589 blocks: Vec<BlockLayout>,
9590 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
9591 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
9592 redacted_ranges: Vec<Range<DisplayPoint>>,
9593 cursors: Vec<(DisplayPoint, Hsla)>,
9594 visible_cursors: Vec<CursorLayout>,
9595 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
9596 test_indicators: Vec<AnyElement>,
9597 breakpoints: Vec<AnyElement>,
9598 crease_toggles: Vec<Option<AnyElement>>,
9599 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
9600 diff_hunk_controls: Vec<AnyElement>,
9601 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
9602 edit_prediction_popover: Option<AnyElement>,
9603 mouse_context_menu: Option<AnyElement>,
9604 tab_invisible: ShapedLine,
9605 space_invisible: ShapedLine,
9606 sticky_buffer_header: Option<AnyElement>,
9607 document_colors: Option<(DocumentColorsRenderMode, Vec<(Range<DisplayPoint>, Hsla)>)>,
9608}
9609
9610impl EditorLayout {
9611 fn line_end_overshoot(&self) -> Pixels {
9612 0.15 * self.position_map.line_height
9613 }
9614}
9615
9616struct LineNumberLayout {
9617 shaped_line: ShapedLine,
9618 hitbox: Option<Hitbox>,
9619}
9620
9621struct ColoredRange<T> {
9622 start: T,
9623 end: T,
9624 color: Hsla,
9625}
9626
9627impl Along for ScrollbarAxes {
9628 type Unit = bool;
9629
9630 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
9631 match axis {
9632 ScrollbarAxis::Horizontal => self.horizontal,
9633 ScrollbarAxis::Vertical => self.vertical,
9634 }
9635 }
9636
9637 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
9638 match axis {
9639 ScrollbarAxis::Horizontal => ScrollbarAxes {
9640 horizontal: f(self.horizontal),
9641 vertical: self.vertical,
9642 },
9643 ScrollbarAxis::Vertical => ScrollbarAxes {
9644 horizontal: self.horizontal,
9645 vertical: f(self.vertical),
9646 },
9647 }
9648 }
9649}
9650
9651#[derive(Clone)]
9652struct EditorScrollbars {
9653 pub vertical: Option<ScrollbarLayout>,
9654 pub horizontal: Option<ScrollbarLayout>,
9655 pub visible: bool,
9656}
9657
9658impl EditorScrollbars {
9659 pub fn from_scrollbar_axes(
9660 show_scrollbar: ScrollbarAxes,
9661 layout_information: &ScrollbarLayoutInformation,
9662 content_offset: gpui::Point<Pixels>,
9663 scroll_position: gpui::Point<f32>,
9664 scrollbar_width: Pixels,
9665 right_margin: Pixels,
9666 editor_width: Pixels,
9667 show_scrollbars: bool,
9668 scrollbar_state: Option<&ActiveScrollbarState>,
9669 window: &mut Window,
9670 ) -> Self {
9671 let ScrollbarLayoutInformation {
9672 editor_bounds,
9673 scroll_range,
9674 glyph_grid_cell,
9675 } = layout_information;
9676
9677 let viewport_size = size(editor_width, editor_bounds.size.height);
9678
9679 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
9680 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
9681 Corner::BottomLeft,
9682 editor_bounds.bottom_left(),
9683 size(
9684 // The horizontal viewport size differs from the space available for the
9685 // horizontal scrollbar, so we have to manually stich it together here.
9686 editor_bounds.size.width - right_margin,
9687 scrollbar_width,
9688 ),
9689 ),
9690 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
9691 Corner::TopRight,
9692 editor_bounds.top_right(),
9693 size(scrollbar_width, viewport_size.height),
9694 ),
9695 };
9696
9697 let mut create_scrollbar_layout = |axis| {
9698 let viewport_size = viewport_size.along(axis);
9699 let scroll_range = scroll_range.along(axis);
9700
9701 // We always want a vertical scrollbar track for scrollbar diagnostic visibility.
9702 (show_scrollbar.along(axis)
9703 && (axis == ScrollbarAxis::Vertical || scroll_range > viewport_size))
9704 .then(|| {
9705 ScrollbarLayout::new(
9706 window.insert_hitbox(scrollbar_bounds_for(axis), HitboxBehavior::Normal),
9707 viewport_size,
9708 scroll_range,
9709 glyph_grid_cell.along(axis),
9710 content_offset.along(axis),
9711 scroll_position.along(axis),
9712 show_scrollbars,
9713 axis,
9714 )
9715 .with_thumb_state(
9716 scrollbar_state.and_then(|state| state.thumb_state_for_axis(axis)),
9717 )
9718 })
9719 };
9720
9721 Self {
9722 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
9723 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
9724 visible: show_scrollbars,
9725 }
9726 }
9727
9728 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
9729 [
9730 (&self.vertical, ScrollbarAxis::Vertical),
9731 (&self.horizontal, ScrollbarAxis::Horizontal),
9732 ]
9733 .into_iter()
9734 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
9735 }
9736
9737 /// Returns the currently hovered scrollbar axis, if any.
9738 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
9739 self.iter_scrollbars()
9740 .find(|s| s.0.hitbox.is_hovered(window))
9741 }
9742}
9743
9744#[derive(Clone)]
9745struct ScrollbarLayout {
9746 hitbox: Hitbox,
9747 visible_range: Range<f32>,
9748 text_unit_size: Pixels,
9749 thumb_bounds: Option<Bounds<Pixels>>,
9750 thumb_state: ScrollbarThumbState,
9751}
9752
9753impl ScrollbarLayout {
9754 const BORDER_WIDTH: Pixels = px(1.0);
9755 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
9756 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
9757 const MIN_THUMB_SIZE: Pixels = px(25.0);
9758
9759 fn new(
9760 scrollbar_track_hitbox: Hitbox,
9761 viewport_size: Pixels,
9762 scroll_range: Pixels,
9763 glyph_space: Pixels,
9764 content_offset: Pixels,
9765 scroll_position: f32,
9766 show_thumb: bool,
9767 axis: ScrollbarAxis,
9768 ) -> Self {
9769 let track_bounds = scrollbar_track_hitbox.bounds;
9770 // The length of the track available to the scrollbar thumb. We deliberately
9771 // exclude the content size here so that the thumb aligns with the content.
9772 let track_length = track_bounds.size.along(axis) - content_offset;
9773
9774 Self::new_with_hitbox_and_track_length(
9775 scrollbar_track_hitbox,
9776 track_length,
9777 viewport_size,
9778 scroll_range,
9779 glyph_space,
9780 content_offset,
9781 scroll_position,
9782 show_thumb,
9783 axis,
9784 )
9785 }
9786
9787 fn for_minimap(
9788 minimap_track_hitbox: Hitbox,
9789 visible_lines: f32,
9790 total_editor_lines: f32,
9791 minimap_line_height: Pixels,
9792 scroll_position: f32,
9793 minimap_scroll_top: f32,
9794 show_thumb: bool,
9795 ) -> Self {
9796 // The scrollbar thumb size is calculated as
9797 // (visible_content/total_content) Γ scrollbar_track_length.
9798 //
9799 // For the minimap's thumb layout, we leverage this by setting the
9800 // scrollbar track length to the entire document size (using minimap line
9801 // height). This creates a thumb that exactly represents the editor
9802 // viewport scaled to minimap proportions.
9803 //
9804 // We adjust the thumb position relative to `minimap_scroll_top` to
9805 // accommodate for the deliberately oversized track.
9806 //
9807 // This approach ensures that the minimap thumb accurately reflects the
9808 // editor's current scroll position whilst nicely synchronizing the minimap
9809 // thumb and scrollbar thumb.
9810 let scroll_range = total_editor_lines * minimap_line_height;
9811 let viewport_size = visible_lines * minimap_line_height;
9812
9813 let track_top_offset = -minimap_scroll_top * minimap_line_height;
9814
9815 Self::new_with_hitbox_and_track_length(
9816 minimap_track_hitbox,
9817 scroll_range,
9818 viewport_size,
9819 scroll_range,
9820 minimap_line_height,
9821 track_top_offset,
9822 scroll_position,
9823 show_thumb,
9824 ScrollbarAxis::Vertical,
9825 )
9826 }
9827
9828 fn new_with_hitbox_and_track_length(
9829 scrollbar_track_hitbox: Hitbox,
9830 track_length: Pixels,
9831 viewport_size: Pixels,
9832 scroll_range: Pixels,
9833 glyph_space: Pixels,
9834 content_offset: Pixels,
9835 scroll_position: f32,
9836 show_thumb: bool,
9837 axis: ScrollbarAxis,
9838 ) -> Self {
9839 let text_units_per_page = viewport_size / glyph_space;
9840 let visible_range = scroll_position..scroll_position + text_units_per_page;
9841 let total_text_units = scroll_range / glyph_space;
9842
9843 let thumb_percentage = text_units_per_page / total_text_units;
9844 let thumb_size = (track_length * thumb_percentage)
9845 .max(ScrollbarLayout::MIN_THUMB_SIZE)
9846 .min(track_length);
9847
9848 let text_unit_divisor = (total_text_units - text_units_per_page).max(0.);
9849
9850 let content_larger_than_viewport = text_unit_divisor > 0.;
9851
9852 let text_unit_size = if content_larger_than_viewport {
9853 (track_length - thumb_size) / text_unit_divisor
9854 } else {
9855 glyph_space
9856 };
9857
9858 let thumb_bounds = (show_thumb && content_larger_than_viewport).then(|| {
9859 Self::thumb_bounds(
9860 &scrollbar_track_hitbox,
9861 content_offset,
9862 visible_range.start,
9863 text_unit_size,
9864 thumb_size,
9865 axis,
9866 )
9867 });
9868
9869 ScrollbarLayout {
9870 hitbox: scrollbar_track_hitbox,
9871 visible_range,
9872 text_unit_size,
9873 thumb_bounds,
9874 thumb_state: Default::default(),
9875 }
9876 }
9877
9878 fn with_thumb_state(self, thumb_state: Option<ScrollbarThumbState>) -> Self {
9879 if let Some(thumb_state) = thumb_state {
9880 Self {
9881 thumb_state,
9882 ..self
9883 }
9884 } else {
9885 self
9886 }
9887 }
9888
9889 fn thumb_bounds(
9890 scrollbar_track: &Hitbox,
9891 content_offset: Pixels,
9892 visible_range_start: f32,
9893 text_unit_size: Pixels,
9894 thumb_size: Pixels,
9895 axis: ScrollbarAxis,
9896 ) -> Bounds<Pixels> {
9897 let thumb_origin = scrollbar_track.origin.apply_along(axis, |origin| {
9898 origin + content_offset + visible_range_start * text_unit_size
9899 });
9900 Bounds::new(
9901 thumb_origin,
9902 scrollbar_track.size.apply_along(axis, |_| thumb_size),
9903 )
9904 }
9905
9906 fn thumb_hovered(&self, position: &gpui::Point<Pixels>) -> bool {
9907 self.thumb_bounds
9908 .is_some_and(|bounds| bounds.contains(position))
9909 }
9910
9911 fn marker_quads_for_ranges(
9912 &self,
9913 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
9914 column: Option<usize>,
9915 ) -> Vec<PaintQuad> {
9916 struct MinMax {
9917 min: Pixels,
9918 max: Pixels,
9919 }
9920 let (x_range, height_limit) = if let Some(column) = column {
9921 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
9922 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
9923 let end = start + column_width;
9924 (
9925 Range { start, end },
9926 MinMax {
9927 min: Self::MIN_MARKER_HEIGHT,
9928 max: px(f32::MAX),
9929 },
9930 )
9931 } else {
9932 (
9933 Range {
9934 start: Self::BORDER_WIDTH,
9935 end: self.hitbox.size.width,
9936 },
9937 MinMax {
9938 min: Self::LINE_MARKER_HEIGHT,
9939 max: Self::LINE_MARKER_HEIGHT,
9940 },
9941 )
9942 };
9943
9944 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
9945 let mut pixel_ranges = row_ranges
9946 .into_iter()
9947 .map(|range| {
9948 let start_y = row_to_y(range.start);
9949 let end_y = row_to_y(range.end)
9950 + self
9951 .text_unit_size
9952 .max(height_limit.min)
9953 .min(height_limit.max);
9954 ColoredRange {
9955 start: start_y,
9956 end: end_y,
9957 color: range.color,
9958 }
9959 })
9960 .peekable();
9961
9962 let mut quads = Vec::new();
9963 while let Some(mut pixel_range) = pixel_ranges.next() {
9964 while let Some(next_pixel_range) = pixel_ranges.peek() {
9965 if pixel_range.end >= next_pixel_range.start - px(1.0)
9966 && pixel_range.color == next_pixel_range.color
9967 {
9968 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
9969 pixel_ranges.next();
9970 } else {
9971 break;
9972 }
9973 }
9974
9975 let bounds = Bounds::from_corners(
9976 point(x_range.start, pixel_range.start),
9977 point(x_range.end, pixel_range.end),
9978 );
9979 quads.push(quad(
9980 bounds,
9981 Corners::default(),
9982 pixel_range.color,
9983 Edges::default(),
9984 Hsla::transparent_black(),
9985 BorderStyle::default(),
9986 ));
9987 }
9988
9989 quads
9990 }
9991}
9992
9993struct MinimapLayout {
9994 pub minimap: AnyElement,
9995 pub thumb_layout: ScrollbarLayout,
9996 pub minimap_scroll_top: f32,
9997 pub minimap_line_height: Pixels,
9998 pub thumb_border_style: MinimapThumbBorder,
9999 pub max_scroll_top: f32,
10000}
10001
10002impl MinimapLayout {
10003 /// The minimum width of the minimap in columns. If the minimap is smaller than this, it will be hidden.
10004 const MINIMAP_MIN_WIDTH_COLUMNS: f32 = 20.;
10005 /// The minimap width as a percentage of the editor width.
10006 const MINIMAP_WIDTH_PCT: f32 = 0.15;
10007 /// Calculates the scroll top offset the minimap editor has to have based on the
10008 /// current scroll progress.
10009 fn calculate_minimap_top_offset(
10010 document_lines: f32,
10011 visible_editor_lines: f32,
10012 visible_minimap_lines: f32,
10013 scroll_position: f32,
10014 ) -> f32 {
10015 let non_visible_document_lines = (document_lines - visible_editor_lines).max(0.);
10016 if non_visible_document_lines == 0. {
10017 0.
10018 } else {
10019 let scroll_percentage = (scroll_position / non_visible_document_lines).clamp(0., 1.);
10020 scroll_percentage * (document_lines - visible_minimap_lines).max(0.)
10021 }
10022 }
10023}
10024
10025struct CreaseTrailerLayout {
10026 element: AnyElement,
10027 bounds: Bounds<Pixels>,
10028}
10029
10030pub(crate) struct PositionMap {
10031 pub size: Size<Pixels>,
10032 pub line_height: Pixels,
10033 pub scroll_pixel_position: gpui::Point<Pixels>,
10034 pub scroll_max: gpui::Point<f32>,
10035 pub em_width: Pixels,
10036 pub em_advance: Pixels,
10037 pub visible_row_range: Range<DisplayRow>,
10038 pub line_layouts: Vec<LineWithInvisibles>,
10039 pub snapshot: EditorSnapshot,
10040 pub text_hitbox: Hitbox,
10041 pub gutter_hitbox: Hitbox,
10042 pub inline_blame_bounds: Option<(Bounds<Pixels>, BufferId, BlameEntry)>,
10043 pub display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
10044 pub diff_hunk_control_bounds: Vec<(DisplayRow, Bounds<Pixels>)>,
10045}
10046
10047#[derive(Debug, Copy, Clone)]
10048pub struct PointForPosition {
10049 pub previous_valid: DisplayPoint,
10050 pub next_valid: DisplayPoint,
10051 pub exact_unclipped: DisplayPoint,
10052 pub column_overshoot_after_line_end: u32,
10053}
10054
10055impl PointForPosition {
10056 pub fn as_valid(&self) -> Option<DisplayPoint> {
10057 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
10058 Some(self.previous_valid)
10059 } else {
10060 None
10061 }
10062 }
10063
10064 pub fn intersects_selection(&self, selection: &Selection<DisplayPoint>) -> bool {
10065 let Some(valid_point) = self.as_valid() else {
10066 return false;
10067 };
10068 let range = selection.range();
10069
10070 let candidate_row = valid_point.row();
10071 let candidate_col = valid_point.column();
10072
10073 let start_row = range.start.row();
10074 let start_col = range.start.column();
10075 let end_row = range.end.row();
10076 let end_col = range.end.column();
10077
10078 if candidate_row < start_row || candidate_row > end_row {
10079 false
10080 } else if start_row == end_row {
10081 candidate_col >= start_col && candidate_col < end_col
10082 } else if candidate_row == start_row {
10083 candidate_col >= start_col
10084 } else if candidate_row == end_row {
10085 candidate_col < end_col
10086 } else {
10087 true
10088 }
10089 }
10090}
10091
10092impl PositionMap {
10093 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
10094 let text_bounds = self.text_hitbox.bounds;
10095 let scroll_position = self.snapshot.scroll_position();
10096 let position = position - text_bounds.origin;
10097 let y = position.y.max(px(0.)).min(self.size.height);
10098 let x = position.x + (scroll_position.x * self.em_advance);
10099 let row = ((y / self.line_height) + scroll_position.y) as u32;
10100
10101 let (column, x_overshoot_after_line_end) = if let Some(line) = self
10102 .line_layouts
10103 .get(row as usize - scroll_position.y as usize)
10104 {
10105 if let Some(ix) = line.index_for_x(x) {
10106 (ix as u32, px(0.))
10107 } else {
10108 (line.len as u32, px(0.).max(x - line.width))
10109 }
10110 } else {
10111 (0, x)
10112 };
10113
10114 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
10115 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
10116 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
10117
10118 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
10119 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
10120 PointForPosition {
10121 previous_valid,
10122 next_valid,
10123 exact_unclipped,
10124 column_overshoot_after_line_end,
10125 }
10126 }
10127}
10128
10129struct BlockLayout {
10130 id: BlockId,
10131 x_offset: Pixels,
10132 row: Option<DisplayRow>,
10133 element: AnyElement,
10134 available_space: Size<AvailableSpace>,
10135 style: BlockStyle,
10136 overlaps_gutter: bool,
10137 is_buffer_header: bool,
10138}
10139
10140pub fn layout_line(
10141 row: DisplayRow,
10142 snapshot: &EditorSnapshot,
10143 style: &EditorStyle,
10144 text_width: Pixels,
10145 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
10146 window: &mut Window,
10147 cx: &mut App,
10148) -> LineWithInvisibles {
10149 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
10150 LineWithInvisibles::from_chunks(
10151 chunks,
10152 style,
10153 MAX_LINE_LEN,
10154 1,
10155 &snapshot.mode,
10156 text_width,
10157 is_row_soft_wrapped,
10158 &[],
10159 window,
10160 cx,
10161 )
10162 .pop()
10163 .unwrap()
10164}
10165
10166#[derive(Debug)]
10167pub struct IndentGuideLayout {
10168 origin: gpui::Point<Pixels>,
10169 length: Pixels,
10170 single_indent_width: Pixels,
10171 depth: u32,
10172 active: bool,
10173 settings: IndentGuideSettings,
10174}
10175
10176pub struct CursorLayout {
10177 origin: gpui::Point<Pixels>,
10178 block_width: Pixels,
10179 line_height: Pixels,
10180 color: Hsla,
10181 shape: CursorShape,
10182 block_text: Option<ShapedLine>,
10183 cursor_name: Option<AnyElement>,
10184}
10185
10186#[derive(Debug)]
10187pub struct CursorName {
10188 string: SharedString,
10189 color: Hsla,
10190 is_top_row: bool,
10191}
10192
10193impl CursorLayout {
10194 pub fn new(
10195 origin: gpui::Point<Pixels>,
10196 block_width: Pixels,
10197 line_height: Pixels,
10198 color: Hsla,
10199 shape: CursorShape,
10200 block_text: Option<ShapedLine>,
10201 ) -> CursorLayout {
10202 CursorLayout {
10203 origin,
10204 block_width,
10205 line_height,
10206 color,
10207 shape,
10208 block_text,
10209 cursor_name: None,
10210 }
10211 }
10212
10213 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
10214 Bounds {
10215 origin: self.origin + origin,
10216 size: size(self.block_width, self.line_height),
10217 }
10218 }
10219
10220 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
10221 match self.shape {
10222 CursorShape::Bar => Bounds {
10223 origin: self.origin + origin,
10224 size: size(px(2.0), self.line_height),
10225 },
10226 CursorShape::Block | CursorShape::Hollow => Bounds {
10227 origin: self.origin + origin,
10228 size: size(self.block_width, self.line_height),
10229 },
10230 CursorShape::Underline => Bounds {
10231 origin: self.origin
10232 + origin
10233 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
10234 size: size(self.block_width, px(2.0)),
10235 },
10236 }
10237 }
10238
10239 pub fn layout(
10240 &mut self,
10241 origin: gpui::Point<Pixels>,
10242 cursor_name: Option<CursorName>,
10243 window: &mut Window,
10244 cx: &mut App,
10245 ) {
10246 if let Some(cursor_name) = cursor_name {
10247 let bounds = self.bounds(origin);
10248 let text_size = self.line_height / 1.5;
10249
10250 let name_origin = if cursor_name.is_top_row {
10251 point(bounds.right() - px(1.), bounds.top())
10252 } else {
10253 match self.shape {
10254 CursorShape::Bar => point(
10255 bounds.right() - px(2.),
10256 bounds.top() - text_size / 2. - px(1.),
10257 ),
10258 _ => point(
10259 bounds.right() - px(1.),
10260 bounds.top() - text_size / 2. - px(1.),
10261 ),
10262 }
10263 };
10264 let mut name_element = div()
10265 .bg(self.color)
10266 .text_size(text_size)
10267 .px_0p5()
10268 .line_height(text_size + px(2.))
10269 .text_color(cursor_name.color)
10270 .child(cursor_name.string)
10271 .into_any_element();
10272
10273 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
10274
10275 self.cursor_name = Some(name_element);
10276 }
10277 }
10278
10279 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
10280 let bounds = self.bounds(origin);
10281
10282 //Draw background or border quad
10283 let cursor = if matches!(self.shape, CursorShape::Hollow) {
10284 outline(bounds, self.color, BorderStyle::Solid)
10285 } else {
10286 fill(bounds, self.color)
10287 };
10288
10289 if let Some(name) = &mut self.cursor_name {
10290 name.paint(window, cx);
10291 }
10292
10293 window.paint_quad(cursor);
10294
10295 if let Some(block_text) = &self.block_text {
10296 block_text
10297 .paint(self.origin + origin, self.line_height, window, cx)
10298 .log_err();
10299 }
10300 }
10301
10302 pub fn shape(&self) -> CursorShape {
10303 self.shape
10304 }
10305}
10306
10307#[derive(Debug)]
10308pub struct HighlightedRange {
10309 pub start_y: Pixels,
10310 pub line_height: Pixels,
10311 pub lines: Vec<HighlightedRangeLine>,
10312 pub color: Hsla,
10313 pub corner_radius: Pixels,
10314}
10315
10316#[derive(Debug)]
10317pub struct HighlightedRangeLine {
10318 pub start_x: Pixels,
10319 pub end_x: Pixels,
10320}
10321
10322impl HighlightedRange {
10323 pub fn paint(&self, fill: bool, bounds: Bounds<Pixels>, window: &mut Window) {
10324 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
10325 self.paint_lines(self.start_y, &self.lines[0..1], fill, bounds, window);
10326 self.paint_lines(
10327 self.start_y + self.line_height,
10328 &self.lines[1..],
10329 fill,
10330 bounds,
10331 window,
10332 );
10333 } else {
10334 self.paint_lines(self.start_y, &self.lines, fill, bounds, window);
10335 }
10336 }
10337
10338 fn paint_lines(
10339 &self,
10340 start_y: Pixels,
10341 lines: &[HighlightedRangeLine],
10342 fill: bool,
10343 _bounds: Bounds<Pixels>,
10344 window: &mut Window,
10345 ) {
10346 if lines.is_empty() {
10347 return;
10348 }
10349
10350 let first_line = lines.first().unwrap();
10351 let last_line = lines.last().unwrap();
10352
10353 let first_top_left = point(first_line.start_x, start_y);
10354 let first_top_right = point(first_line.end_x, start_y);
10355
10356 let curve_height = point(Pixels::ZERO, self.corner_radius);
10357 let curve_width = |start_x: Pixels, end_x: Pixels| {
10358 let max = (end_x - start_x) / 2.;
10359 let width = if max < self.corner_radius {
10360 max
10361 } else {
10362 self.corner_radius
10363 };
10364
10365 point(width, Pixels::ZERO)
10366 };
10367
10368 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
10369 let mut builder = if fill {
10370 gpui::PathBuilder::fill()
10371 } else {
10372 gpui::PathBuilder::stroke(px(1.))
10373 };
10374 builder.move_to(first_top_right - top_curve_width);
10375 builder.curve_to(first_top_right + curve_height, first_top_right);
10376
10377 let mut iter = lines.iter().enumerate().peekable();
10378 while let Some((ix, line)) = iter.next() {
10379 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
10380
10381 if let Some((_, next_line)) = iter.peek() {
10382 let next_top_right = point(next_line.end_x, bottom_right.y);
10383
10384 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
10385 Ordering::Equal => {
10386 builder.line_to(bottom_right);
10387 }
10388 Ordering::Less => {
10389 let curve_width = curve_width(next_top_right.x, bottom_right.x);
10390 builder.line_to(bottom_right - curve_height);
10391 if self.corner_radius > Pixels::ZERO {
10392 builder.curve_to(bottom_right - curve_width, bottom_right);
10393 }
10394 builder.line_to(next_top_right + curve_width);
10395 if self.corner_radius > Pixels::ZERO {
10396 builder.curve_to(next_top_right + curve_height, next_top_right);
10397 }
10398 }
10399 Ordering::Greater => {
10400 let curve_width = curve_width(bottom_right.x, next_top_right.x);
10401 builder.line_to(bottom_right - curve_height);
10402 if self.corner_radius > Pixels::ZERO {
10403 builder.curve_to(bottom_right + curve_width, bottom_right);
10404 }
10405 builder.line_to(next_top_right - curve_width);
10406 if self.corner_radius > Pixels::ZERO {
10407 builder.curve_to(next_top_right + curve_height, next_top_right);
10408 }
10409 }
10410 }
10411 } else {
10412 let curve_width = curve_width(line.start_x, line.end_x);
10413 builder.line_to(bottom_right - curve_height);
10414 if self.corner_radius > Pixels::ZERO {
10415 builder.curve_to(bottom_right - curve_width, bottom_right);
10416 }
10417
10418 let bottom_left = point(line.start_x, bottom_right.y);
10419 builder.line_to(bottom_left + curve_width);
10420 if self.corner_radius > Pixels::ZERO {
10421 builder.curve_to(bottom_left - curve_height, bottom_left);
10422 }
10423 }
10424 }
10425
10426 if first_line.start_x > last_line.start_x {
10427 let curve_width = curve_width(last_line.start_x, first_line.start_x);
10428 let second_top_left = point(last_line.start_x, start_y + self.line_height);
10429 builder.line_to(second_top_left + curve_height);
10430 if self.corner_radius > Pixels::ZERO {
10431 builder.curve_to(second_top_left + curve_width, second_top_left);
10432 }
10433 let first_bottom_left = point(first_line.start_x, second_top_left.y);
10434 builder.line_to(first_bottom_left - curve_width);
10435 if self.corner_radius > Pixels::ZERO {
10436 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
10437 }
10438 }
10439
10440 builder.line_to(first_top_left + curve_height);
10441 if self.corner_radius > Pixels::ZERO {
10442 builder.curve_to(first_top_left + top_curve_width, first_top_left);
10443 }
10444 builder.line_to(first_top_right - top_curve_width);
10445
10446 if let Ok(path) = builder.build() {
10447 window.paint_path(path, self.color);
10448 }
10449 }
10450}
10451
10452enum CursorPopoverType {
10453 CodeContextMenu,
10454 EditPrediction,
10455}
10456
10457pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
10458 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
10459}
10460
10461fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
10462 (delta.pow(1.2) / 300.0).into()
10463}
10464
10465pub fn register_action<T: Action>(
10466 editor: &Entity<Editor>,
10467 window: &mut Window,
10468 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
10469) {
10470 let editor = editor.clone();
10471 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
10472 let action = action.downcast_ref().unwrap();
10473 if phase == DispatchPhase::Bubble {
10474 editor.update(cx, |editor, cx| {
10475 listener(editor, action, window, cx);
10476 })
10477 }
10478 })
10479}
10480
10481fn compute_auto_height_layout(
10482 editor: &mut Editor,
10483 min_lines: usize,
10484 max_lines: Option<usize>,
10485 max_line_number_width: Pixels,
10486 known_dimensions: Size<Option<Pixels>>,
10487 available_width: AvailableSpace,
10488 window: &mut Window,
10489 cx: &mut Context<Editor>,
10490) -> Option<Size<Pixels>> {
10491 let width = known_dimensions.width.or({
10492 if let AvailableSpace::Definite(available_width) = available_width {
10493 Some(available_width)
10494 } else {
10495 None
10496 }
10497 })?;
10498 if let Some(height) = known_dimensions.height {
10499 return Some(size(width, height));
10500 }
10501
10502 let style = editor.style.as_ref().unwrap();
10503 let font_id = window.text_system().resolve_font(&style.text.font());
10504 let font_size = style.text.font_size.to_pixels(window.rem_size());
10505 let line_height = style.text.line_height_in_pixels(window.rem_size());
10506 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
10507
10508 let mut snapshot = editor.snapshot(window, cx);
10509 let gutter_dimensions = snapshot
10510 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
10511 .or_else(|| {
10512 editor
10513 .offset_content
10514 .then(|| GutterDimensions::default_with_margin(font_id, font_size, cx))
10515 })
10516 .unwrap_or_default();
10517
10518 editor.gutter_dimensions = gutter_dimensions;
10519 let text_width = width - gutter_dimensions.width;
10520 let overscroll = size(em_width, px(0.));
10521
10522 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
10523 if !matches!(editor.soft_wrap_mode(cx), SoftWrap::None)
10524 && editor.set_wrap_width(Some(editor_width), cx)
10525 {
10526 snapshot = editor.snapshot(window, cx);
10527 }
10528
10529 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
10530
10531 let min_height = line_height * min_lines as f32;
10532 let content_height = scroll_height.max(min_height);
10533
10534 let final_height = if let Some(max_lines) = max_lines {
10535 let max_height = line_height * max_lines as f32;
10536 content_height.min(max_height)
10537 } else {
10538 content_height
10539 };
10540
10541 Some(size(width, final_height))
10542}
10543
10544#[cfg(test)]
10545mod tests {
10546 use super::*;
10547 use crate::{
10548 Editor, MultiBuffer, SelectionEffects,
10549 display_map::{BlockPlacement, BlockProperties},
10550 editor_tests::{init_test, update_test_language_settings},
10551 };
10552 use gpui::{TestAppContext, VisualTestContext};
10553 use language::language_settings;
10554 use log::info;
10555 use std::num::NonZeroU32;
10556 use util::test::sample_text;
10557
10558 #[gpui::test]
10559 async fn test_soft_wrap_editor_width_auto_height_editor(cx: &mut TestAppContext) {
10560 init_test(cx, |_| {});
10561
10562 let window = cx.add_window(|window, cx| {
10563 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
10564 let mut editor = Editor::new(
10565 EditorMode::AutoHeight {
10566 min_lines: 1,
10567 max_lines: None,
10568 },
10569 buffer,
10570 None,
10571 window,
10572 cx,
10573 );
10574 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
10575 editor
10576 });
10577 let cx = &mut VisualTestContext::from_window(*window, cx);
10578 let editor = window.root(cx).unwrap();
10579 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10580
10581 for x in 1..=100 {
10582 let (_, state) = cx.draw(
10583 Default::default(),
10584 size(px(200. + 0.13 * x as f32), px(500.)),
10585 |_, _| EditorElement::new(&editor, style.clone()),
10586 );
10587
10588 assert!(
10589 state.position_map.scroll_max.x == 0.,
10590 "Soft wrapped editor should have no horizontal scrolling!"
10591 );
10592 }
10593 }
10594
10595 #[gpui::test]
10596 async fn test_soft_wrap_editor_width_full_editor(cx: &mut TestAppContext) {
10597 init_test(cx, |_| {});
10598
10599 let window = cx.add_window(|window, cx| {
10600 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
10601 let mut editor = Editor::new(EditorMode::full(), buffer, None, window, cx);
10602 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
10603 editor
10604 });
10605 let cx = &mut VisualTestContext::from_window(*window, cx);
10606 let editor = window.root(cx).unwrap();
10607 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10608
10609 for x in 1..=100 {
10610 let (_, state) = cx.draw(
10611 Default::default(),
10612 size(px(200. + 0.13 * x as f32), px(500.)),
10613 |_, _| EditorElement::new(&editor, style.clone()),
10614 );
10615
10616 assert!(
10617 state.position_map.scroll_max.x == 0.,
10618 "Soft wrapped editor should have no horizontal scrolling!"
10619 );
10620 }
10621 }
10622
10623 #[gpui::test]
10624 fn test_shape_line_numbers(cx: &mut TestAppContext) {
10625 init_test(cx, |_| {});
10626 let window = cx.add_window(|window, cx| {
10627 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
10628 Editor::new(EditorMode::full(), buffer, None, window, cx)
10629 });
10630
10631 let editor = window.root(cx).unwrap();
10632 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
10633 let line_height = window
10634 .update(cx, |_, window, _| {
10635 style.text.line_height_in_pixels(window.rem_size())
10636 })
10637 .unwrap();
10638 let element = EditorElement::new(&editor, style);
10639 let snapshot = window
10640 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
10641 .unwrap();
10642
10643 let layouts = cx
10644 .update_window(*window, |_, window, cx| {
10645 element.layout_line_numbers(
10646 None,
10647 GutterDimensions {
10648 left_padding: Pixels::ZERO,
10649 right_padding: Pixels::ZERO,
10650 width: px(30.0),
10651 margin: Pixels::ZERO,
10652 git_blame_entries_width: None,
10653 },
10654 line_height,
10655 gpui::Point::default(),
10656 DisplayRow(0)..DisplayRow(6),
10657 &(0..6)
10658 .map(|row| RowInfo {
10659 buffer_row: Some(row),
10660 ..Default::default()
10661 })
10662 .collect::<Vec<_>>(),
10663 &BTreeMap::default(),
10664 Some(DisplayPoint::new(DisplayRow(0), 0)),
10665 &snapshot,
10666 window,
10667 cx,
10668 )
10669 })
10670 .unwrap();
10671 assert_eq!(layouts.len(), 6);
10672
10673 let relative_rows = window
10674 .update(cx, |editor, window, cx| {
10675 let snapshot = editor.snapshot(window, cx);
10676 element.calculate_relative_line_numbers(
10677 &snapshot,
10678 &(DisplayRow(0)..DisplayRow(6)),
10679 Some(DisplayRow(3)),
10680 )
10681 })
10682 .unwrap();
10683 assert_eq!(relative_rows[&DisplayRow(0)], 3);
10684 assert_eq!(relative_rows[&DisplayRow(1)], 2);
10685 assert_eq!(relative_rows[&DisplayRow(2)], 1);
10686 // current line has no relative number
10687 assert_eq!(relative_rows[&DisplayRow(4)], 1);
10688 assert_eq!(relative_rows[&DisplayRow(5)], 2);
10689
10690 // works if cursor is before screen
10691 let relative_rows = window
10692 .update(cx, |editor, window, cx| {
10693 let snapshot = editor.snapshot(window, cx);
10694 element.calculate_relative_line_numbers(
10695 &snapshot,
10696 &(DisplayRow(3)..DisplayRow(6)),
10697 Some(DisplayRow(1)),
10698 )
10699 })
10700 .unwrap();
10701 assert_eq!(relative_rows.len(), 3);
10702 assert_eq!(relative_rows[&DisplayRow(3)], 2);
10703 assert_eq!(relative_rows[&DisplayRow(4)], 3);
10704 assert_eq!(relative_rows[&DisplayRow(5)], 4);
10705
10706 // works if cursor is after screen
10707 let relative_rows = window
10708 .update(cx, |editor, window, cx| {
10709 let snapshot = editor.snapshot(window, cx);
10710 element.calculate_relative_line_numbers(
10711 &snapshot,
10712 &(DisplayRow(0)..DisplayRow(3)),
10713 Some(DisplayRow(6)),
10714 )
10715 })
10716 .unwrap();
10717 assert_eq!(relative_rows.len(), 3);
10718 assert_eq!(relative_rows[&DisplayRow(0)], 5);
10719 assert_eq!(relative_rows[&DisplayRow(1)], 4);
10720 assert_eq!(relative_rows[&DisplayRow(2)], 3);
10721 }
10722
10723 #[gpui::test]
10724 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
10725 init_test(cx, |_| {});
10726
10727 let window = cx.add_window(|window, cx| {
10728 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
10729 Editor::new(EditorMode::full(), buffer, None, window, cx)
10730 });
10731 let cx = &mut VisualTestContext::from_window(*window, cx);
10732 let editor = window.root(cx).unwrap();
10733 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10734
10735 window
10736 .update(cx, |editor, window, cx| {
10737 editor.cursor_shape = CursorShape::Block;
10738 editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
10739 s.select_ranges([
10740 Point::new(0, 0)..Point::new(1, 0),
10741 Point::new(3, 2)..Point::new(3, 3),
10742 Point::new(5, 6)..Point::new(6, 0),
10743 ]);
10744 });
10745 })
10746 .unwrap();
10747
10748 let (_, state) = cx.draw(
10749 point(px(500.), px(500.)),
10750 size(px(500.), px(500.)),
10751 |_, _| EditorElement::new(&editor, style),
10752 );
10753
10754 assert_eq!(state.selections.len(), 1);
10755 let local_selections = &state.selections[0].1;
10756 assert_eq!(local_selections.len(), 3);
10757 // moves cursor back one line
10758 assert_eq!(
10759 local_selections[0].head,
10760 DisplayPoint::new(DisplayRow(0), 6)
10761 );
10762 assert_eq!(
10763 local_selections[0].range,
10764 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
10765 );
10766
10767 // moves cursor back one column
10768 assert_eq!(
10769 local_selections[1].range,
10770 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
10771 );
10772 assert_eq!(
10773 local_selections[1].head,
10774 DisplayPoint::new(DisplayRow(3), 2)
10775 );
10776
10777 // leaves cursor on the max point
10778 assert_eq!(
10779 local_selections[2].range,
10780 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
10781 );
10782 assert_eq!(
10783 local_selections[2].head,
10784 DisplayPoint::new(DisplayRow(6), 0)
10785 );
10786
10787 // active lines does not include 1 (even though the range of the selection does)
10788 assert_eq!(
10789 state.active_rows.keys().cloned().collect::<Vec<_>>(),
10790 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
10791 );
10792 }
10793
10794 #[gpui::test]
10795 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
10796 init_test(cx, |_| {});
10797
10798 let window = cx.add_window(|window, cx| {
10799 let buffer = MultiBuffer::build_simple("", cx);
10800 Editor::new(EditorMode::full(), buffer, None, window, cx)
10801 });
10802 let cx = &mut VisualTestContext::from_window(*window, cx);
10803 let editor = window.root(cx).unwrap();
10804 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10805 window
10806 .update(cx, |editor, window, cx| {
10807 editor.set_placeholder_text("hello", window, cx);
10808 editor.insert_blocks(
10809 [BlockProperties {
10810 style: BlockStyle::Fixed,
10811 placement: BlockPlacement::Above(Anchor::min()),
10812 height: Some(3),
10813 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
10814 priority: 0,
10815 }],
10816 None,
10817 cx,
10818 );
10819
10820 // Blur the editor so that it displays placeholder text.
10821 window.blur();
10822 })
10823 .unwrap();
10824
10825 let (_, state) = cx.draw(
10826 point(px(500.), px(500.)),
10827 size(px(500.), px(500.)),
10828 |_, _| EditorElement::new(&editor, style),
10829 );
10830 assert_eq!(state.position_map.line_layouts.len(), 4);
10831 assert_eq!(state.line_numbers.len(), 1);
10832 assert_eq!(
10833 state
10834 .line_numbers
10835 .get(&MultiBufferRow(0))
10836 .map(|line_number| line_number.shaped_line.text.as_ref()),
10837 Some("1")
10838 );
10839 }
10840
10841 #[gpui::test]
10842 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
10843 const TAB_SIZE: u32 = 4;
10844
10845 let input_text = "\t \t|\t| a b";
10846 let expected_invisibles = vec![
10847 Invisible::Tab {
10848 line_start_offset: 0,
10849 line_end_offset: TAB_SIZE as usize,
10850 },
10851 Invisible::Whitespace {
10852 line_offset: TAB_SIZE as usize,
10853 },
10854 Invisible::Tab {
10855 line_start_offset: TAB_SIZE as usize + 1,
10856 line_end_offset: TAB_SIZE as usize * 2,
10857 },
10858 Invisible::Tab {
10859 line_start_offset: TAB_SIZE as usize * 2 + 1,
10860 line_end_offset: TAB_SIZE as usize * 3,
10861 },
10862 Invisible::Whitespace {
10863 line_offset: TAB_SIZE as usize * 3 + 1,
10864 },
10865 Invisible::Whitespace {
10866 line_offset: TAB_SIZE as usize * 3 + 3,
10867 },
10868 ];
10869 assert_eq!(
10870 expected_invisibles.len(),
10871 input_text
10872 .chars()
10873 .filter(|initial_char| initial_char.is_whitespace())
10874 .count(),
10875 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
10876 );
10877
10878 for show_line_numbers in [true, false] {
10879 init_test(cx, |s| {
10880 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10881 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
10882 });
10883
10884 let actual_invisibles = collect_invisibles_from_new_editor(
10885 cx,
10886 EditorMode::full(),
10887 input_text,
10888 px(500.0),
10889 show_line_numbers,
10890 );
10891
10892 assert_eq!(expected_invisibles, actual_invisibles);
10893 }
10894 }
10895
10896 #[gpui::test]
10897 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
10898 init_test(cx, |s| {
10899 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10900 s.defaults.tab_size = NonZeroU32::new(4);
10901 });
10902
10903 for editor_mode_without_invisibles in [
10904 EditorMode::SingleLine,
10905 EditorMode::AutoHeight {
10906 min_lines: 1,
10907 max_lines: Some(100),
10908 },
10909 ] {
10910 for show_line_numbers in [true, false] {
10911 let invisibles = collect_invisibles_from_new_editor(
10912 cx,
10913 editor_mode_without_invisibles.clone(),
10914 "\t\t\t| | a b",
10915 px(500.0),
10916 show_line_numbers,
10917 );
10918 assert!(
10919 invisibles.is_empty(),
10920 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
10921 );
10922 }
10923 }
10924 }
10925
10926 #[gpui::test]
10927 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
10928 let tab_size = 4;
10929 let input_text = "a\tbcd ".repeat(9);
10930 let repeated_invisibles = [
10931 Invisible::Tab {
10932 line_start_offset: 1,
10933 line_end_offset: tab_size as usize,
10934 },
10935 Invisible::Whitespace {
10936 line_offset: tab_size as usize + 3,
10937 },
10938 Invisible::Whitespace {
10939 line_offset: tab_size as usize + 4,
10940 },
10941 Invisible::Whitespace {
10942 line_offset: tab_size as usize + 5,
10943 },
10944 Invisible::Whitespace {
10945 line_offset: tab_size as usize + 6,
10946 },
10947 Invisible::Whitespace {
10948 line_offset: tab_size as usize + 7,
10949 },
10950 ];
10951 let expected_invisibles = std::iter::once(repeated_invisibles)
10952 .cycle()
10953 .take(9)
10954 .flatten()
10955 .collect::<Vec<_>>();
10956 assert_eq!(
10957 expected_invisibles.len(),
10958 input_text
10959 .chars()
10960 .filter(|initial_char| initial_char.is_whitespace())
10961 .count(),
10962 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
10963 );
10964 info!("Expected invisibles: {expected_invisibles:?}");
10965
10966 init_test(cx, |_| {});
10967
10968 // Put the same string with repeating whitespace pattern into editors of various size,
10969 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
10970 let resize_step = 10.0;
10971 let mut editor_width = 200.0;
10972 while editor_width <= 1000.0 {
10973 for show_line_numbers in [true, false] {
10974 update_test_language_settings(cx, |s| {
10975 s.defaults.tab_size = NonZeroU32::new(tab_size);
10976 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10977 s.defaults.preferred_line_length = Some(editor_width as u32);
10978 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
10979 });
10980
10981 let actual_invisibles = collect_invisibles_from_new_editor(
10982 cx,
10983 EditorMode::full(),
10984 &input_text,
10985 px(editor_width),
10986 show_line_numbers,
10987 );
10988
10989 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
10990 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
10991 let mut i = 0;
10992 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
10993 i = actual_index;
10994 match expected_invisibles.get(i) {
10995 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
10996 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
10997 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
10998 _ => {
10999 panic!(
11000 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
11001 )
11002 }
11003 },
11004 None => {
11005 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
11006 }
11007 }
11008 }
11009 let missing_expected_invisibles = &expected_invisibles[i + 1..];
11010 assert!(
11011 missing_expected_invisibles.is_empty(),
11012 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
11013 );
11014
11015 editor_width += resize_step;
11016 }
11017 }
11018 }
11019
11020 fn collect_invisibles_from_new_editor(
11021 cx: &mut TestAppContext,
11022 editor_mode: EditorMode,
11023 input_text: &str,
11024 editor_width: Pixels,
11025 show_line_numbers: bool,
11026 ) -> Vec<Invisible> {
11027 info!(
11028 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
11029 editor_width.0
11030 );
11031 let window = cx.add_window(|window, cx| {
11032 let buffer = MultiBuffer::build_simple(input_text, cx);
11033 Editor::new(editor_mode, buffer, None, window, cx)
11034 });
11035 let cx = &mut VisualTestContext::from_window(*window, cx);
11036 let editor = window.root(cx).unwrap();
11037
11038 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
11039 window
11040 .update(cx, |editor, _, cx| {
11041 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
11042 editor.set_wrap_width(Some(editor_width), cx);
11043 editor.set_show_line_numbers(show_line_numbers, cx);
11044 })
11045 .unwrap();
11046 let (_, state) = cx.draw(
11047 point(px(500.), px(500.)),
11048 size(px(500.), px(500.)),
11049 |_, _| EditorElement::new(&editor, style),
11050 );
11051 state
11052 .position_map
11053 .line_layouts
11054 .iter()
11055 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
11056 .cloned()
11057 .collect()
11058 }
11059
11060 #[gpui::test]
11061 fn test_merge_overlapping_ranges() {
11062 let base_bg = Hsla::white();
11063 let color1 = Hsla {
11064 h: 0.0,
11065 s: 0.5,
11066 l: 0.5,
11067 a: 0.5,
11068 };
11069 let color2 = Hsla {
11070 h: 120.0,
11071 s: 0.5,
11072 l: 0.5,
11073 a: 0.5,
11074 };
11075
11076 let display_point = |col| DisplayPoint::new(DisplayRow(0), col);
11077 let cols = |v: &Vec<(Range<DisplayPoint>, Hsla)>| -> Vec<(u32, u32)> {
11078 v.iter()
11079 .map(|(r, _)| (r.start.column(), r.end.column()))
11080 .collect()
11081 };
11082
11083 // Test overlapping ranges blend colors
11084 let overlapping = vec![
11085 (display_point(5)..display_point(15), color1),
11086 (display_point(10)..display_point(20), color2),
11087 ];
11088 let result = EditorElement::merge_overlapping_ranges(overlapping, base_bg);
11089 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
11090
11091 // Test middle segment should have blended color
11092 let blended = Hsla::blend(Hsla::blend(base_bg, color1), color2);
11093 assert_eq!(result[1].1, blended);
11094
11095 // Test adjacent same-color ranges merge
11096 let adjacent_same = vec![
11097 (display_point(5)..display_point(10), color1),
11098 (display_point(10)..display_point(15), color1),
11099 ];
11100 let result = EditorElement::merge_overlapping_ranges(adjacent_same, base_bg);
11101 assert_eq!(cols(&result), vec![(5, 15)]);
11102
11103 // Test contained range splits
11104 let contained = vec![
11105 (display_point(5)..display_point(20), color1),
11106 (display_point(10)..display_point(15), color2),
11107 ];
11108 let result = EditorElement::merge_overlapping_ranges(contained, base_bg);
11109 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
11110
11111 // Test multiple overlaps split at every boundary
11112 let color3 = Hsla {
11113 h: 240.0,
11114 s: 0.5,
11115 l: 0.5,
11116 a: 0.5,
11117 };
11118 let complex = vec![
11119 (display_point(5)..display_point(12), color1),
11120 (display_point(8)..display_point(16), color2),
11121 (display_point(10)..display_point(14), color3),
11122 ];
11123 let result = EditorElement::merge_overlapping_ranges(complex, base_bg);
11124 assert_eq!(
11125 cols(&result),
11126 vec![(5, 8), (8, 10), (10, 12), (12, 14), (14, 16)]
11127 );
11128 }
11129
11130 #[gpui::test]
11131 fn test_bg_segments_per_row() {
11132 let base_bg = Hsla::white();
11133
11134 // Case A: selection spans three display rows: row 1 [5, end), full row 2, row 3 [0, 7)
11135 {
11136 let selection_color = Hsla {
11137 h: 200.0,
11138 s: 0.5,
11139 l: 0.5,
11140 a: 0.5,
11141 };
11142 let player_color = PlayerColor {
11143 cursor: selection_color,
11144 background: selection_color,
11145 selection: selection_color,
11146 };
11147
11148 let spanning_selection = SelectionLayout {
11149 head: DisplayPoint::new(DisplayRow(3), 7),
11150 cursor_shape: CursorShape::Bar,
11151 is_newest: true,
11152 is_local: true,
11153 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 7),
11154 active_rows: DisplayRow(1)..DisplayRow(4),
11155 user_name: None,
11156 };
11157
11158 let selections = vec![(player_color, vec![spanning_selection])];
11159 let result = EditorElement::bg_segments_per_row(
11160 DisplayRow(0)..DisplayRow(5),
11161 &selections,
11162 &[],
11163 base_bg,
11164 );
11165
11166 assert_eq!(result.len(), 5);
11167 assert!(result[0].is_empty());
11168 assert_eq!(result[1].len(), 1);
11169 assert_eq!(result[2].len(), 1);
11170 assert_eq!(result[3].len(), 1);
11171 assert!(result[4].is_empty());
11172
11173 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
11174 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
11175 assert_eq!(result[1][0].0.end.column(), u32::MAX);
11176 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
11177 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
11178 assert_eq!(result[2][0].0.end.column(), u32::MAX);
11179 assert_eq!(result[3][0].0.start, DisplayPoint::new(DisplayRow(3), 0));
11180 assert_eq!(result[3][0].0.end, DisplayPoint::new(DisplayRow(3), 7));
11181 }
11182
11183 // Case B: selection ends exactly at the start of row 3, excluding row 3
11184 {
11185 let selection_color = Hsla {
11186 h: 120.0,
11187 s: 0.5,
11188 l: 0.5,
11189 a: 0.5,
11190 };
11191 let player_color = PlayerColor {
11192 cursor: selection_color,
11193 background: selection_color,
11194 selection: selection_color,
11195 };
11196
11197 let selection = SelectionLayout {
11198 head: DisplayPoint::new(DisplayRow(2), 0),
11199 cursor_shape: CursorShape::Bar,
11200 is_newest: true,
11201 is_local: true,
11202 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 0),
11203 active_rows: DisplayRow(1)..DisplayRow(3),
11204 user_name: None,
11205 };
11206
11207 let selections = vec![(player_color, vec![selection])];
11208 let result = EditorElement::bg_segments_per_row(
11209 DisplayRow(0)..DisplayRow(4),
11210 &selections,
11211 &[],
11212 base_bg,
11213 );
11214
11215 assert_eq!(result.len(), 4);
11216 assert!(result[0].is_empty());
11217 assert_eq!(result[1].len(), 1);
11218 assert_eq!(result[2].len(), 1);
11219 assert!(result[3].is_empty());
11220
11221 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
11222 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
11223 assert_eq!(result[1][0].0.end.column(), u32::MAX);
11224 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
11225 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
11226 assert_eq!(result[2][0].0.end.column(), u32::MAX);
11227 }
11228 }
11229
11230 #[cfg(test)]
11231 fn generate_test_run(len: usize, color: Hsla) -> TextRun {
11232 TextRun {
11233 len,
11234 font: gpui::font(".SystemUIFont"),
11235 color,
11236 background_color: None,
11237 underline: None,
11238 strikethrough: None,
11239 }
11240 }
11241
11242 #[gpui::test]
11243 fn test_split_runs_by_bg_segments(cx: &mut gpui::TestAppContext) {
11244 init_test(cx, |_| {});
11245
11246 let text_color = Hsla {
11247 h: 210.0,
11248 s: 0.1,
11249 l: 0.4,
11250 a: 1.0,
11251 };
11252 let bg1 = Hsla {
11253 h: 30.0,
11254 s: 0.6,
11255 l: 0.8,
11256 a: 1.0,
11257 };
11258 let bg2 = Hsla {
11259 h: 200.0,
11260 s: 0.6,
11261 l: 0.2,
11262 a: 1.0,
11263 };
11264 let min_contrast = 45.0;
11265
11266 // Case A: single run; disjoint segments inside the run
11267 let runs = vec![generate_test_run(20, text_color)];
11268 let segs = vec![
11269 (
11270 DisplayPoint::new(DisplayRow(0), 5)..DisplayPoint::new(DisplayRow(0), 10),
11271 bg1,
11272 ),
11273 (
11274 DisplayPoint::new(DisplayRow(0), 12)..DisplayPoint::new(DisplayRow(0), 16),
11275 bg2,
11276 ),
11277 ];
11278 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast);
11279 // Expected slices: [0,5) [5,10) [10,12) [12,16) [16,20)
11280 assert_eq!(
11281 out.iter().map(|r| r.len).collect::<Vec<_>>(),
11282 vec![5, 5, 2, 4, 4]
11283 );
11284 assert_eq!(out[0].color, text_color);
11285 assert_eq!(
11286 out[1].color,
11287 ensure_minimum_contrast(text_color, bg1, min_contrast)
11288 );
11289 assert_eq!(out[2].color, text_color);
11290 assert_eq!(
11291 out[3].color,
11292 ensure_minimum_contrast(text_color, bg2, min_contrast)
11293 );
11294 assert_eq!(out[4].color, text_color);
11295
11296 // Case B: multiple runs; segment extends to end of line (u32::MAX)
11297 let runs = vec![
11298 generate_test_run(8, text_color),
11299 generate_test_run(7, text_color),
11300 ];
11301 let segs = vec![(
11302 DisplayPoint::new(DisplayRow(0), 6)..DisplayPoint::new(DisplayRow(0), u32::MAX),
11303 bg1,
11304 )];
11305 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast);
11306 // Expected slices across runs: [0,6) [6,8) | [0,7)
11307 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![6, 2, 7]);
11308 let adjusted = ensure_minimum_contrast(text_color, bg1, min_contrast);
11309 assert_eq!(out[0].color, text_color);
11310 assert_eq!(out[1].color, adjusted);
11311 assert_eq!(out[2].color, adjusted);
11312
11313 // Case C: multi-byte characters
11314 // for text: "Hello π δΈη!"
11315 let runs = vec![
11316 generate_test_run(5, text_color), // "Hello"
11317 generate_test_run(6, text_color), // " π "
11318 generate_test_run(6, text_color), // "δΈη"
11319 generate_test_run(1, text_color), // "!"
11320 ];
11321 // selecting "π δΈ"
11322 let segs = vec![(
11323 DisplayPoint::new(DisplayRow(0), 6)..DisplayPoint::new(DisplayRow(0), 14),
11324 bg1,
11325 )];
11326 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast);
11327 // "Hello" | " " | "π " | "δΈ" | "η" | "!"
11328 assert_eq!(
11329 out.iter().map(|r| r.len).collect::<Vec<_>>(),
11330 vec![5, 1, 5, 3, 3, 1]
11331 );
11332 assert_eq!(out[0].color, text_color); // "Hello"
11333 assert_eq!(
11334 out[2].color,
11335 ensure_minimum_contrast(text_color, bg1, min_contrast)
11336 ); // "π "
11337 assert_eq!(
11338 out[3].color,
11339 ensure_minimum_contrast(text_color, bg1, min_contrast)
11340 ); // "δΈ"
11341 assert_eq!(out[4].color, text_color); // "η"
11342 assert_eq!(out[5].color, text_color); // "!"
11343 }
11344}