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, PhantomDiffReviewIndicator, Point, RowExt, RowRangeExt,
11 SelectPhase, SelectedTextHighlight, Selection, SelectionDragState, SelectionEffects,
12 SizingBehavior, SoftWrap, StickyHeaderExcerpt, ToPoint, ToggleFold, ToggleFoldAll,
13 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
14 column_pixels,
15 display_map::{
16 Block, BlockContext, BlockStyle, ChunkRendererId, DisplaySnapshot, EditorMargins,
17 HighlightKey, HighlightedChunk, ToDisplayPoint,
18 },
19 editor_settings::{
20 CurrentLineHighlight, DocumentColorsRenderMode, DoubleClickInMultibuffer, Minimap,
21 MinimapThumb, MinimapThumbBorder, ScrollBeyondLastLine, ScrollbarAxes,
22 ScrollbarDiagnostics, ShowMinimap,
23 },
24 git::blame::{BlameRenderer, GitBlame, GlobalBlameRenderer},
25 hover_popover::{
26 self, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
27 POPOVER_RIGHT_OFFSET, hover_at,
28 },
29 inlay_hint_settings,
30 items::BufferSearchHighlights,
31 mouse_context_menu::{self, MenuPosition},
32 scroll::{
33 ActiveScrollbarState, Autoscroll, ScrollOffset, ScrollPixelOffset, ScrollbarThumbState,
34 scroll_amount::ScrollAmount,
35 },
36};
37use buffer_diff::{DiffHunkStatus, DiffHunkStatusKind};
38use collections::{BTreeMap, HashMap};
39use feature_flags::{DiffReviewFeatureFlag, FeatureFlagAppExt as _};
40use file_icons::FileIcons;
41use git::{Oid, blame::BlameEntry, commit::ParsedCommitMessage, status::FileStatus};
42use gpui::{
43 Action, Along, AnyElement, App, AppContext, AvailableSpace, Axis as ScrollbarAxis, BorderStyle,
44 Bounds, ClickEvent, ClipboardItem, ContentMask, Context, Corner, Corners, CursorStyle,
45 DispatchPhase, Edges, Element, ElementInputHandler, Entity, Focusable as _, FontId, FontWeight,
46 GlobalElementId, Hitbox, HitboxBehavior, Hsla, InteractiveElement, IntoElement, IsZero,
47 KeybindingKeystroke, Length, Modifiers, ModifiersChangedEvent, MouseButton, MouseClickEvent,
48 MouseDownEvent, MouseMoveEvent, MousePressureEvent, MouseUpEvent, PaintQuad, ParentElement,
49 Pixels, PressureStage, ScrollDelta, ScrollHandle, ScrollWheelEvent, ShapedLine, SharedString,
50 Size, StatefulInteractiveElement, Style, Styled, StyledText, TextAlign, TextRun,
51 TextStyleRefinement, WeakEntity, Window, anchored, deferred, div, fill, linear_color_stop,
52 linear_gradient, outline, point, px, quad, relative, size, solid_background, transparent_black,
53};
54use itertools::Itertools;
55use language::{IndentGuideSettings, language_settings::ShowWhitespaceSetting};
56use markdown::Markdown;
57use multi_buffer::{
58 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, ExpandInfo, MultiBufferPoint,
59 MultiBufferRow, RowInfo,
60};
61
62use edit_prediction_types::EditPredictionGranularity;
63use project::{
64 DisableAiSettings, Entry, ProjectPath,
65 debugger::breakpoint_store::{Breakpoint, BreakpointSessionState},
66 project_settings::ProjectSettings,
67};
68use settings::{
69 GitGutterSetting, GitHunkStyleSetting, IndentGuideBackgroundColoring, IndentGuideColoring,
70 RelativeLineNumbers, Settings,
71};
72use smallvec::{SmallVec, smallvec};
73use std::{
74 any::TypeId,
75 borrow::Cow,
76 cell::Cell,
77 cmp::{self, Ordering},
78 fmt::{self, Write},
79 iter, mem,
80 ops::{Deref, Range},
81 path::{self, Path},
82 rc::Rc,
83 sync::Arc,
84 time::{Duration, Instant},
85};
86use sum_tree::Bias;
87use text::{BufferId, SelectionGoal};
88use theme::{ActiveTheme, Appearance, BufferLineHeight, PlayerColor};
89use ui::utils::ensure_minimum_contrast;
90use ui::{
91 ButtonLike, ContextMenu, Indicator, KeyBinding, POPOVER_Y_PADDING, Tooltip, prelude::*,
92 right_click_menu, scrollbars::ShowScrollbar, text_for_keystroke,
93};
94use unicode_segmentation::UnicodeSegmentation;
95use util::post_inc;
96use util::{RangeExt, ResultExt, debug_panic};
97use workspace::{
98 CollaboratorId, ItemHandle, ItemSettings, OpenInTerminal, OpenTerminal, RevealInProjectPanel,
99 Workspace,
100 item::{BreadcrumbText, Item, ItemBufferKind},
101 notifications::NotifyTaskExt,
102};
103
104/// Determines what kinds of highlights should be applied to a lines background.
105#[derive(Clone, Copy, Default)]
106struct LineHighlightSpec {
107 selection: bool,
108 breakpoint: bool,
109 _active_stack_frame: bool,
110}
111
112#[derive(Debug)]
113struct SelectionLayout {
114 head: DisplayPoint,
115 cursor_shape: CursorShape,
116 is_newest: bool,
117 is_local: bool,
118 range: Range<DisplayPoint>,
119 active_rows: Range<DisplayRow>,
120 user_name: Option<SharedString>,
121}
122
123struct InlineBlameLayout {
124 element: AnyElement,
125 bounds: Bounds<Pixels>,
126 buffer_id: BufferId,
127 entry: BlameEntry,
128}
129
130impl SelectionLayout {
131 fn new<T: ToPoint + ToDisplayPoint + Clone>(
132 selection: Selection<T>,
133 line_mode: bool,
134 cursor_offset: bool,
135 cursor_shape: CursorShape,
136 map: &DisplaySnapshot,
137 is_newest: bool,
138 is_local: bool,
139 user_name: Option<SharedString>,
140 ) -> Self {
141 let point_selection = selection.map(|p| p.to_point(map.buffer_snapshot()));
142 let display_selection = point_selection.map(|p| p.to_display_point(map));
143 let mut range = display_selection.range();
144 let mut head = display_selection.head();
145 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
146 ..map.next_line_boundary(point_selection.end).1.row();
147
148 // vim visual line mode
149 if line_mode {
150 let point_range = map.expand_to_line(point_selection.range());
151 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
152 }
153
154 // any vim visual mode (including line mode)
155 if cursor_offset && !range.is_empty() && !selection.reversed {
156 if head.column() > 0 {
157 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left);
158 } else if head.row().0 > 0 && head != map.max_point() {
159 head = map.clip_point(
160 DisplayPoint::new(
161 head.row().previous_row(),
162 map.line_len(head.row().previous_row()),
163 ),
164 Bias::Left,
165 );
166 // updating range.end is a no-op unless you're cursor is
167 // on the newline containing a multi-buffer divider
168 // in which case the clip_point may have moved the head up
169 // an additional row.
170 range.end = DisplayPoint::new(head.row().next_row(), 0);
171 active_rows.end = head.row();
172 }
173 }
174
175 Self {
176 head,
177 cursor_shape,
178 is_newest,
179 is_local,
180 range,
181 active_rows,
182 user_name,
183 }
184 }
185}
186
187#[derive(Default)]
188struct RenderBlocksOutput {
189 blocks: Vec<BlockLayout>,
190 row_block_types: HashMap<DisplayRow, bool>,
191 resized_blocks: Option<HashMap<CustomBlockId, u32>>,
192}
193
194pub struct EditorElement {
195 editor: Entity<Editor>,
196 style: EditorStyle,
197}
198
199impl EditorElement {
200 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
201
202 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
203 Self {
204 editor: editor.clone(),
205 style,
206 }
207 }
208
209 fn register_actions(&self, window: &mut Window, cx: &mut App) {
210 let editor = &self.editor;
211 editor.update(cx, |editor, cx| {
212 for action in editor.editor_actions.borrow().values() {
213 (action)(editor, window, cx)
214 }
215 });
216
217 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
218 crate::clangd_ext::apply_related_actions(editor, window, cx);
219
220 register_action(editor, window, Editor::open_context_menu);
221 register_action(editor, window, Editor::move_left);
222 register_action(editor, window, Editor::move_right);
223 register_action(editor, window, Editor::move_down);
224 register_action(editor, window, Editor::move_down_by_lines);
225 register_action(editor, window, Editor::select_down_by_lines);
226 register_action(editor, window, Editor::move_up);
227 register_action(editor, window, Editor::move_up_by_lines);
228 register_action(editor, window, Editor::select_up_by_lines);
229 register_action(editor, window, Editor::select_page_down);
230 register_action(editor, window, Editor::select_page_up);
231 register_action(editor, window, Editor::cancel);
232 register_action(editor, window, Editor::newline);
233 register_action(editor, window, Editor::newline_above);
234 register_action(editor, window, Editor::newline_below);
235 register_action(editor, window, Editor::backspace);
236 register_action(editor, window, Editor::blame_hover);
237 register_action(editor, window, Editor::delete);
238 register_action(editor, window, Editor::tab);
239 register_action(editor, window, Editor::next_snippet_tabstop);
240 register_action(editor, window, Editor::previous_snippet_tabstop);
241 register_action(editor, window, Editor::backtab);
242 register_action(editor, window, Editor::indent);
243 register_action(editor, window, Editor::outdent);
244 register_action(editor, window, Editor::autoindent);
245 register_action(editor, window, Editor::delete_line);
246 register_action(editor, window, Editor::join_lines);
247 register_action(editor, window, Editor::sort_lines_by_length);
248 register_action(editor, window, Editor::sort_lines_case_sensitive);
249 register_action(editor, window, Editor::sort_lines_case_insensitive);
250 register_action(editor, window, Editor::reverse_lines);
251 register_action(editor, window, Editor::shuffle_lines);
252 register_action(editor, window, Editor::rotate_selections_forward);
253 register_action(editor, window, Editor::rotate_selections_backward);
254 register_action(editor, window, Editor::convert_indentation_to_spaces);
255 register_action(editor, window, Editor::convert_indentation_to_tabs);
256 register_action(editor, window, Editor::convert_to_upper_case);
257 register_action(editor, window, Editor::convert_to_lower_case);
258 register_action(editor, window, Editor::convert_to_title_case);
259 register_action(editor, window, Editor::convert_to_snake_case);
260 register_action(editor, window, Editor::convert_to_kebab_case);
261 register_action(editor, window, Editor::convert_to_upper_camel_case);
262 register_action(editor, window, Editor::convert_to_lower_camel_case);
263 register_action(editor, window, Editor::convert_to_opposite_case);
264 register_action(editor, window, Editor::convert_to_sentence_case);
265 register_action(editor, window, Editor::toggle_case);
266 register_action(editor, window, Editor::convert_to_rot13);
267 register_action(editor, window, Editor::convert_to_rot47);
268 register_action(editor, window, Editor::delete_to_previous_word_start);
269 register_action(editor, window, Editor::delete_to_previous_subword_start);
270 register_action(editor, window, Editor::delete_to_next_word_end);
271 register_action(editor, window, Editor::delete_to_next_subword_end);
272 register_action(editor, window, Editor::delete_to_beginning_of_line);
273 register_action(editor, window, Editor::delete_to_end_of_line);
274 register_action(editor, window, Editor::cut_to_end_of_line);
275 register_action(editor, window, Editor::duplicate_line_up);
276 register_action(editor, window, Editor::duplicate_line_down);
277 register_action(editor, window, Editor::duplicate_selection);
278 register_action(editor, window, Editor::move_line_up);
279 register_action(editor, window, Editor::move_line_down);
280 register_action(editor, window, Editor::transpose);
281 register_action(editor, window, Editor::rewrap);
282 register_action(editor, window, Editor::cut);
283 register_action(editor, window, Editor::kill_ring_cut);
284 register_action(editor, window, Editor::kill_ring_yank);
285 register_action(editor, window, Editor::copy);
286 register_action(editor, window, Editor::copy_and_trim);
287 register_action(editor, window, Editor::diff_clipboard_with_selection);
288 register_action(editor, window, Editor::paste);
289 register_action(editor, window, Editor::undo);
290 register_action(editor, window, Editor::redo);
291 register_action(editor, window, Editor::move_page_up);
292 register_action(editor, window, Editor::move_page_down);
293 register_action(editor, window, Editor::next_screen);
294 register_action(editor, window, Editor::scroll_cursor_top);
295 register_action(editor, window, Editor::scroll_cursor_center);
296 register_action(editor, window, Editor::scroll_cursor_bottom);
297 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
298 register_action(editor, window, |editor, _: &LineDown, window, cx| {
299 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
300 });
301 register_action(editor, window, |editor, _: &LineUp, window, cx| {
302 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
303 });
304 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
305 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
306 });
307 register_action(
308 editor,
309 window,
310 |editor, HandleInput(text): &HandleInput, window, cx| {
311 if text.is_empty() {
312 return;
313 }
314 editor.handle_input(text, window, cx);
315 },
316 );
317 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
318 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
319 });
320 register_action(editor, window, |editor, _: &PageDown, window, cx| {
321 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
322 });
323 register_action(editor, window, |editor, _: &PageUp, window, cx| {
324 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
325 });
326 register_action(editor, window, Editor::move_to_previous_word_start);
327 register_action(editor, window, Editor::move_to_previous_subword_start);
328 register_action(editor, window, Editor::move_to_next_word_end);
329 register_action(editor, window, Editor::move_to_next_subword_end);
330 register_action(editor, window, Editor::move_to_beginning_of_line);
331 register_action(editor, window, Editor::move_to_end_of_line);
332 register_action(editor, window, Editor::move_to_start_of_paragraph);
333 register_action(editor, window, Editor::move_to_end_of_paragraph);
334 register_action(editor, window, Editor::move_to_beginning);
335 register_action(editor, window, Editor::move_to_end);
336 register_action(editor, window, Editor::move_to_start_of_excerpt);
337 register_action(editor, window, Editor::move_to_start_of_next_excerpt);
338 register_action(editor, window, Editor::move_to_end_of_excerpt);
339 register_action(editor, window, Editor::move_to_end_of_previous_excerpt);
340 register_action(editor, window, Editor::select_up);
341 register_action(editor, window, Editor::select_down);
342 register_action(editor, window, Editor::select_left);
343 register_action(editor, window, Editor::select_right);
344 register_action(editor, window, Editor::select_to_previous_word_start);
345 register_action(editor, window, Editor::select_to_previous_subword_start);
346 register_action(editor, window, Editor::select_to_next_word_end);
347 register_action(editor, window, Editor::select_to_next_subword_end);
348 register_action(editor, window, Editor::select_to_beginning_of_line);
349 register_action(editor, window, Editor::select_to_end_of_line);
350 register_action(editor, window, Editor::select_to_start_of_paragraph);
351 register_action(editor, window, Editor::select_to_end_of_paragraph);
352 register_action(editor, window, Editor::select_to_start_of_excerpt);
353 register_action(editor, window, Editor::select_to_start_of_next_excerpt);
354 register_action(editor, window, Editor::select_to_end_of_excerpt);
355 register_action(editor, window, Editor::select_to_end_of_previous_excerpt);
356 register_action(editor, window, Editor::select_to_beginning);
357 register_action(editor, window, Editor::select_to_end);
358 register_action(editor, window, Editor::select_all);
359 register_action(editor, window, |editor, action, window, cx| {
360 editor.select_all_matches(action, window, cx).log_err();
361 });
362 register_action(editor, window, Editor::select_line);
363 register_action(editor, window, Editor::split_selection_into_lines);
364 register_action(editor, window, Editor::add_selection_above);
365 register_action(editor, window, Editor::add_selection_below);
366 register_action(editor, window, Editor::insert_snippet_at_selections);
367 register_action(editor, window, |editor, action, window, cx| {
368 editor.select_next(action, window, cx).log_err();
369 });
370 register_action(editor, window, |editor, action, window, cx| {
371 editor.select_previous(action, window, cx).log_err();
372 });
373 register_action(editor, window, |editor, action, window, cx| {
374 editor.find_next_match(action, window, cx).log_err();
375 });
376 register_action(editor, window, |editor, action, window, cx| {
377 editor.find_previous_match(action, window, cx).log_err();
378 });
379 register_action(editor, window, Editor::toggle_comments);
380 register_action(editor, window, Editor::select_larger_syntax_node);
381 register_action(editor, window, Editor::select_smaller_syntax_node);
382 register_action(editor, window, Editor::select_next_syntax_node);
383 register_action(editor, window, Editor::select_prev_syntax_node);
384 register_action(editor, window, Editor::unwrap_syntax_node);
385 register_action(editor, window, Editor::select_enclosing_symbol);
386 register_action(editor, window, Editor::move_to_enclosing_bracket);
387 register_action(editor, window, Editor::undo_selection);
388 register_action(editor, window, Editor::redo_selection);
389 if editor.read(cx).buffer_kind(cx) == ItemBufferKind::Multibuffer {
390 register_action(editor, window, Editor::expand_excerpts);
391 register_action(editor, window, Editor::expand_excerpts_up);
392 register_action(editor, window, Editor::expand_excerpts_down);
393 }
394 register_action(editor, window, Editor::go_to_diagnostic);
395 register_action(editor, window, Editor::go_to_prev_diagnostic);
396 register_action(editor, window, Editor::go_to_next_hunk);
397 register_action(editor, window, Editor::go_to_prev_hunk);
398 register_action(editor, window, Editor::go_to_next_document_highlight);
399 register_action(editor, window, Editor::go_to_prev_document_highlight);
400 register_action(editor, window, |editor, action, window, cx| {
401 editor
402 .go_to_definition(action, window, cx)
403 .detach_and_log_err(cx);
404 });
405 register_action(editor, window, |editor, action, window, cx| {
406 editor
407 .go_to_definition_split(action, window, cx)
408 .detach_and_log_err(cx);
409 });
410 register_action(editor, window, |editor, action, window, cx| {
411 editor
412 .go_to_declaration(action, window, cx)
413 .detach_and_log_err(cx);
414 });
415 register_action(editor, window, |editor, action, window, cx| {
416 editor
417 .go_to_declaration_split(action, window, cx)
418 .detach_and_log_err(cx);
419 });
420 register_action(editor, window, |editor, action, window, cx| {
421 editor
422 .go_to_implementation(action, window, cx)
423 .detach_and_log_err(cx);
424 });
425 register_action(editor, window, |editor, action, window, cx| {
426 editor
427 .go_to_implementation_split(action, window, cx)
428 .detach_and_log_err(cx);
429 });
430 register_action(editor, window, |editor, action, window, cx| {
431 editor
432 .go_to_type_definition(action, window, cx)
433 .detach_and_log_err(cx);
434 });
435 register_action(editor, window, |editor, action, window, cx| {
436 editor
437 .go_to_type_definition_split(action, window, cx)
438 .detach_and_log_err(cx);
439 });
440 register_action(editor, window, Editor::open_url);
441 register_action(editor, window, Editor::open_selected_filename);
442 register_action(editor, window, Editor::fold);
443 register_action(editor, window, Editor::fold_at_level);
444 register_action(editor, window, Editor::fold_at_level_1);
445 register_action(editor, window, Editor::fold_at_level_2);
446 register_action(editor, window, Editor::fold_at_level_3);
447 register_action(editor, window, Editor::fold_at_level_4);
448 register_action(editor, window, Editor::fold_at_level_5);
449 register_action(editor, window, Editor::fold_at_level_6);
450 register_action(editor, window, Editor::fold_at_level_7);
451 register_action(editor, window, Editor::fold_at_level_8);
452 register_action(editor, window, Editor::fold_at_level_9);
453 register_action(editor, window, Editor::fold_all);
454 register_action(editor, window, Editor::fold_function_bodies);
455 register_action(editor, window, Editor::fold_recursive);
456 register_action(editor, window, Editor::toggle_fold);
457 register_action(editor, window, Editor::toggle_fold_recursive);
458 register_action(editor, window, Editor::toggle_fold_all);
459 register_action(editor, window, Editor::unfold_lines);
460 register_action(editor, window, Editor::unfold_recursive);
461 register_action(editor, window, Editor::unfold_all);
462 register_action(editor, window, Editor::fold_selected_ranges);
463 register_action(editor, window, Editor::set_mark);
464 register_action(editor, window, Editor::swap_selection_ends);
465 register_action(editor, window, Editor::show_completions);
466 register_action(editor, window, Editor::show_word_completions);
467 register_action(editor, window, Editor::toggle_code_actions);
468 register_action(editor, window, Editor::open_excerpts);
469 register_action(editor, window, Editor::open_excerpts_in_split);
470 register_action(editor, window, Editor::toggle_soft_wrap);
471 register_action(editor, window, Editor::toggle_tab_bar);
472 register_action(editor, window, Editor::toggle_line_numbers);
473 register_action(editor, window, Editor::toggle_relative_line_numbers);
474 register_action(editor, window, Editor::toggle_indent_guides);
475 register_action(editor, window, Editor::toggle_inlay_hints);
476 register_action(editor, window, Editor::toggle_edit_predictions);
477 if editor.read(cx).diagnostics_enabled() {
478 register_action(editor, window, Editor::toggle_diagnostics);
479 }
480 if editor.read(cx).inline_diagnostics_enabled() {
481 register_action(editor, window, Editor::toggle_inline_diagnostics);
482 }
483 if editor.read(cx).supports_minimap(cx) {
484 register_action(editor, window, Editor::toggle_minimap);
485 }
486 register_action(editor, window, hover_popover::hover);
487 register_action(editor, window, Editor::reveal_in_finder);
488 register_action(editor, window, Editor::copy_path);
489 register_action(editor, window, Editor::copy_relative_path);
490 register_action(editor, window, Editor::copy_file_name);
491 register_action(editor, window, Editor::copy_file_name_without_extension);
492 register_action(editor, window, Editor::copy_highlight_json);
493 register_action(editor, window, Editor::copy_permalink_to_line);
494 register_action(editor, window, Editor::open_permalink_to_line);
495 register_action(editor, window, Editor::copy_file_location);
496 register_action(editor, window, Editor::toggle_git_blame);
497 register_action(editor, window, Editor::toggle_git_blame_inline);
498 register_action(editor, window, Editor::open_git_blame_commit);
499 register_action(editor, window, Editor::toggle_selected_diff_hunks);
500 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
501 register_action(editor, window, Editor::stage_and_next);
502 register_action(editor, window, Editor::unstage_and_next);
503 register_action(editor, window, Editor::expand_all_diff_hunks);
504 register_action(editor, window, Editor::collapse_all_diff_hunks);
505 register_action(editor, window, Editor::go_to_previous_change);
506 register_action(editor, window, Editor::go_to_next_change);
507 register_action(editor, window, Editor::go_to_prev_reference);
508 register_action(editor, window, Editor::go_to_next_reference);
509
510 register_action(editor, window, |editor, action, window, cx| {
511 if let Some(task) = editor.format(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.format_selections(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.organize_imports(action, window, cx) {
526 task.detach_and_notify_err(window, cx);
527 } else {
528 cx.propagate();
529 }
530 });
531 register_action(editor, window, Editor::restart_language_server);
532 register_action(editor, window, Editor::stop_language_server);
533 register_action(editor, window, Editor::show_character_palette);
534 register_action(editor, window, |editor, action, window, cx| {
535 if let Some(task) = editor.confirm_completion(action, window, cx) {
536 task.detach_and_notify_err(window, cx);
537 } else {
538 cx.propagate();
539 }
540 });
541 register_action(editor, window, |editor, action, window, cx| {
542 if let Some(task) = editor.confirm_completion_replace(action, window, cx) {
543 task.detach_and_notify_err(window, cx);
544 } else {
545 cx.propagate();
546 }
547 });
548 register_action(editor, window, |editor, action, window, cx| {
549 if let Some(task) = editor.confirm_completion_insert(action, window, cx) {
550 task.detach_and_notify_err(window, cx);
551 } else {
552 cx.propagate();
553 }
554 });
555 register_action(editor, window, |editor, action, window, cx| {
556 if let Some(task) = editor.compose_completion(action, window, cx) {
557 task.detach_and_notify_err(window, cx);
558 } else {
559 cx.propagate();
560 }
561 });
562 register_action(editor, window, |editor, action, window, cx| {
563 if let Some(task) = editor.confirm_code_action(action, window, cx) {
564 task.detach_and_notify_err(window, cx);
565 } else {
566 cx.propagate();
567 }
568 });
569 register_action(editor, window, |editor, action, window, cx| {
570 if let Some(task) = editor.rename(action, window, cx) {
571 task.detach_and_notify_err(window, cx);
572 } else {
573 cx.propagate();
574 }
575 });
576 register_action(editor, window, |editor, action, window, cx| {
577 if let Some(task) = editor.confirm_rename(action, window, cx) {
578 task.detach_and_notify_err(window, cx);
579 } else {
580 cx.propagate();
581 }
582 });
583 register_action(editor, window, |editor, action, window, cx| {
584 if let Some(task) = editor.find_all_references(action, window, cx) {
585 task.detach_and_log_err(cx);
586 } else {
587 cx.propagate();
588 }
589 });
590 register_action(editor, window, Editor::show_signature_help);
591 register_action(editor, window, Editor::signature_help_prev);
592 register_action(editor, window, Editor::signature_help_next);
593 register_action(editor, window, Editor::show_edit_prediction);
594 register_action(editor, window, Editor::context_menu_first);
595 register_action(editor, window, Editor::context_menu_prev);
596 register_action(editor, window, Editor::context_menu_next);
597 register_action(editor, window, Editor::context_menu_last);
598 register_action(editor, window, Editor::display_cursor_names);
599 register_action(editor, window, Editor::unique_lines_case_insensitive);
600 register_action(editor, window, Editor::unique_lines_case_sensitive);
601 register_action(editor, window, Editor::accept_next_word_edit_prediction);
602 register_action(editor, window, Editor::accept_next_line_edit_prediction);
603 register_action(editor, window, Editor::accept_edit_prediction);
604 register_action(editor, window, Editor::restore_file);
605 register_action(editor, window, Editor::git_restore);
606 register_action(editor, window, Editor::apply_all_diff_hunks);
607 register_action(editor, window, Editor::apply_selected_diff_hunks);
608 register_action(editor, window, Editor::open_active_item_in_terminal);
609 register_action(editor, window, Editor::reload_file);
610 register_action(editor, window, Editor::spawn_nearest_task);
611 register_action(editor, window, Editor::insert_uuid_v4);
612 register_action(editor, window, Editor::insert_uuid_v7);
613 register_action(editor, window, Editor::open_selections_in_multibuffer);
614 register_action(editor, window, Editor::toggle_breakpoint);
615 register_action(editor, window, Editor::edit_log_breakpoint);
616 register_action(editor, window, Editor::enable_breakpoint);
617 register_action(editor, window, Editor::disable_breakpoint);
618 register_action(editor, window, Editor::toggle_read_only);
619 if editor.read(cx).enable_wrap_selections_in_tag(cx) {
620 register_action(editor, window, Editor::wrap_selections_in_tag);
621 }
622 }
623
624 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
625 let position_map = layout.position_map.clone();
626 window.on_key_event({
627 let editor = self.editor.clone();
628 move |event: &ModifiersChangedEvent, phase, window, cx| {
629 if phase != DispatchPhase::Bubble {
630 return;
631 }
632 editor.update(cx, |editor, cx| {
633 let inlay_hint_settings = inlay_hint_settings(
634 editor.selections.newest_anchor().head(),
635 &editor.buffer.read(cx).snapshot(cx),
636 cx,
637 );
638
639 if let Some(inlay_modifiers) = inlay_hint_settings
640 .toggle_on_modifiers_press
641 .as_ref()
642 .filter(|modifiers| modifiers.modified())
643 {
644 editor.refresh_inlay_hints(
645 InlayHintRefreshReason::ModifiersChanged(
646 inlay_modifiers == &event.modifiers,
647 ),
648 cx,
649 );
650 }
651
652 if editor.hover_state.focused(window, cx) {
653 return;
654 }
655
656 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
657 })
658 }
659 });
660 }
661
662 fn mouse_left_down(
663 editor: &mut Editor,
664 event: &MouseDownEvent,
665 position_map: &PositionMap,
666 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
667 window: &mut Window,
668 cx: &mut Context<Editor>,
669 ) {
670 if window.default_prevented() {
671 return;
672 }
673
674 let text_hitbox = &position_map.text_hitbox;
675 let gutter_hitbox = &position_map.gutter_hitbox;
676 let point_for_position = position_map.point_for_position(event.position);
677 let mut click_count = event.click_count;
678 let mut modifiers = event.modifiers;
679
680 if let Some(hovered_hunk) =
681 position_map
682 .display_hunks
683 .iter()
684 .find_map(|(hunk, hunk_hitbox)| match hunk {
685 DisplayDiffHunk::Folded { .. } => None,
686 DisplayDiffHunk::Unfolded {
687 multi_buffer_range, ..
688 } => hunk_hitbox
689 .as_ref()
690 .is_some_and(|hitbox| hitbox.is_hovered(window))
691 .then(|| multi_buffer_range.clone()),
692 })
693 {
694 editor.toggle_single_diff_hunk(hovered_hunk, cx);
695 cx.notify();
696 return;
697 } else if gutter_hitbox.is_hovered(window) {
698 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
699 } else if !text_hitbox.is_hovered(window) {
700 return;
701 }
702
703 if EditorSettings::get_global(cx)
704 .drag_and_drop_selection
705 .enabled
706 && click_count == 1
707 && !modifiers.shift
708 {
709 let newest_anchor = editor.selections.newest_anchor();
710 let snapshot = editor.snapshot(window, cx);
711 let selection = newest_anchor.map(|anchor| anchor.to_display_point(&snapshot));
712 if point_for_position.intersects_selection(&selection) {
713 editor.selection_drag_state = SelectionDragState::ReadyToDrag {
714 selection: newest_anchor.clone(),
715 click_position: event.position,
716 mouse_down_time: Instant::now(),
717 };
718 cx.stop_propagation();
719 return;
720 }
721 }
722
723 let is_singleton = editor.buffer().read(cx).is_singleton();
724
725 if click_count == 2 && !is_singleton {
726 match EditorSettings::get_global(cx).double_click_in_multibuffer {
727 DoubleClickInMultibuffer::Select => {
728 // do nothing special on double click, all selection logic is below
729 }
730 DoubleClickInMultibuffer::Open => {
731 if modifiers.alt {
732 // if double click is made with alt, pretend it's a regular double click without opening and alt,
733 // and run the selection logic.
734 modifiers.alt = false;
735 } else {
736 let scroll_position_row = position_map.scroll_position.y;
737 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
738 / position_map.line_height)
739 as f64
740 + position_map.scroll_position.y)
741 as u32;
742 let multi_buffer_row = position_map
743 .snapshot
744 .display_point_to_point(
745 DisplayPoint::new(DisplayRow(display_row), 0),
746 Bias::Right,
747 )
748 .row;
749 let line_offset_from_top = display_row - scroll_position_row as u32;
750 // if double click is made without alt, open the corresponding excerp
751 editor.open_excerpts_common(
752 Some(JumpData::MultiBufferRow {
753 row: MultiBufferRow(multi_buffer_row),
754 line_offset_from_top,
755 }),
756 false,
757 window,
758 cx,
759 );
760 return;
761 }
762 }
763 }
764 }
765
766 if !is_singleton {
767 let display_row = (ScrollPixelOffset::from(
768 (event.position - gutter_hitbox.bounds.origin).y / position_map.line_height,
769 ) + position_map.scroll_position.y) as u32;
770 let multi_buffer_row = position_map
771 .snapshot
772 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
773 .row;
774 if line_numbers
775 .get(&MultiBufferRow(multi_buffer_row))
776 .is_some_and(|line_layout| {
777 line_layout.segments.iter().any(|segment| {
778 segment
779 .hitbox
780 .as_ref()
781 .is_some_and(|hitbox| hitbox.contains(&event.position))
782 })
783 })
784 {
785 let line_offset_from_top = display_row - position_map.scroll_position.y as u32;
786
787 editor.open_excerpts_common(
788 Some(JumpData::MultiBufferRow {
789 row: MultiBufferRow(multi_buffer_row),
790 line_offset_from_top,
791 }),
792 modifiers.alt,
793 window,
794 cx,
795 );
796 cx.stop_propagation();
797 return;
798 }
799 }
800
801 let position = point_for_position.previous_valid;
802 if let Some(mode) = Editor::columnar_selection_mode(&modifiers, cx) {
803 editor.select(
804 SelectPhase::BeginColumnar {
805 position,
806 reset: match mode {
807 ColumnarMode::FromMouse => true,
808 ColumnarMode::FromSelection => false,
809 },
810 mode,
811 goal_column: point_for_position.exact_unclipped.column(),
812 },
813 window,
814 cx,
815 );
816 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
817 {
818 editor.select(
819 SelectPhase::Extend {
820 position,
821 click_count,
822 },
823 window,
824 cx,
825 );
826 } else {
827 editor.select(
828 SelectPhase::Begin {
829 position,
830 add: Editor::is_alt_pressed(&modifiers, cx),
831 click_count,
832 },
833 window,
834 cx,
835 );
836 }
837 cx.stop_propagation();
838 }
839
840 fn mouse_right_down(
841 editor: &mut Editor,
842 event: &MouseDownEvent,
843 position_map: &PositionMap,
844 window: &mut Window,
845 cx: &mut Context<Editor>,
846 ) {
847 if position_map.gutter_hitbox.is_hovered(window) {
848 let gutter_right_padding = editor.gutter_dimensions.right_padding;
849 let hitbox = &position_map.gutter_hitbox;
850
851 if event.position.x <= hitbox.bounds.right() - gutter_right_padding {
852 let point_for_position = position_map.point_for_position(event.position);
853 editor.set_breakpoint_context_menu(
854 point_for_position.previous_valid.row(),
855 None,
856 event.position,
857 window,
858 cx,
859 );
860 }
861 return;
862 }
863
864 if !position_map.text_hitbox.is_hovered(window) {
865 return;
866 }
867
868 let point_for_position = position_map.point_for_position(event.position);
869 mouse_context_menu::deploy_context_menu(
870 editor,
871 Some(event.position),
872 point_for_position.previous_valid,
873 window,
874 cx,
875 );
876 cx.stop_propagation();
877 }
878
879 fn mouse_middle_down(
880 editor: &mut Editor,
881 event: &MouseDownEvent,
882 position_map: &PositionMap,
883 window: &mut Window,
884 cx: &mut Context<Editor>,
885 ) {
886 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
887 return;
888 }
889
890 let point_for_position = position_map.point_for_position(event.position);
891 let position = point_for_position.previous_valid;
892
893 editor.select(
894 SelectPhase::BeginColumnar {
895 position,
896 reset: true,
897 mode: ColumnarMode::FromMouse,
898 goal_column: point_for_position.exact_unclipped.column(),
899 },
900 window,
901 cx,
902 );
903 }
904
905 fn mouse_up(
906 editor: &mut Editor,
907 event: &MouseUpEvent,
908 position_map: &PositionMap,
909 window: &mut Window,
910 cx: &mut Context<Editor>,
911 ) {
912 let text_hitbox = &position_map.text_hitbox;
913 let end_selection = editor.has_pending_selection();
914 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
915 let point_for_position = position_map.point_for_position(event.position);
916
917 match editor.selection_drag_state {
918 SelectionDragState::ReadyToDrag {
919 selection: _,
920 ref click_position,
921 mouse_down_time: _,
922 } => {
923 if event.position == *click_position {
924 editor.select(
925 SelectPhase::Begin {
926 position: point_for_position.previous_valid,
927 add: false,
928 click_count: 1, // ready to drag state only occurs on click count 1
929 },
930 window,
931 cx,
932 );
933 editor.selection_drag_state = SelectionDragState::None;
934 cx.stop_propagation();
935 return;
936 } else {
937 debug_panic!("drag state can never be in ready state after drag")
938 }
939 }
940 SelectionDragState::Dragging { ref selection, .. } => {
941 let snapshot = editor.snapshot(window, cx);
942 let selection_display = selection.map(|anchor| anchor.to_display_point(&snapshot));
943 if !point_for_position.intersects_selection(&selection_display)
944 && text_hitbox.is_hovered(window)
945 {
946 let is_cut = !(cfg!(target_os = "macos") && event.modifiers.alt
947 || cfg!(not(target_os = "macos")) && event.modifiers.control);
948 editor.move_selection_on_drop(
949 &selection.clone(),
950 point_for_position.previous_valid,
951 is_cut,
952 window,
953 cx,
954 );
955 }
956 editor.selection_drag_state = SelectionDragState::None;
957 cx.stop_propagation();
958 cx.notify();
959 return;
960 }
961 _ => {}
962 }
963
964 if end_selection {
965 editor.select(SelectPhase::End, window, cx);
966 }
967
968 if end_selection && pending_nonempty_selections {
969 cx.stop_propagation();
970 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
971 && event.button == MouseButton::Middle
972 {
973 #[allow(
974 clippy::collapsible_if,
975 clippy::needless_return,
976 reason = "The cfg-block below makes this a false positive"
977 )]
978 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
979 return;
980 }
981
982 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
983 if EditorSettings::get_global(cx).middle_click_paste {
984 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
985 let point_for_position = position_map.point_for_position(event.position);
986 let position = point_for_position.previous_valid;
987
988 editor.select(
989 SelectPhase::Begin {
990 position,
991 add: false,
992 click_count: 1,
993 },
994 window,
995 cx,
996 );
997 editor.insert(&text, window, cx);
998 }
999 cx.stop_propagation()
1000 }
1001 }
1002 }
1003
1004 fn click(
1005 editor: &mut Editor,
1006 event: &ClickEvent,
1007 position_map: &PositionMap,
1008 window: &mut Window,
1009 cx: &mut Context<Editor>,
1010 ) {
1011 let text_hitbox = &position_map.text_hitbox;
1012 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
1013
1014 let hovered_link_modifier = Editor::is_cmd_or_ctrl_pressed(&event.modifiers(), cx);
1015 let mouse_down_hovered_link_modifier = if let ClickEvent::Mouse(mouse_event) = event {
1016 Editor::is_cmd_or_ctrl_pressed(&mouse_event.down.modifiers, cx)
1017 } else {
1018 true
1019 };
1020
1021 if let Some(mouse_position) = event.mouse_position()
1022 && !pending_nonempty_selections
1023 && hovered_link_modifier
1024 && mouse_down_hovered_link_modifier
1025 && text_hitbox.is_hovered(window)
1026 && !matches!(
1027 editor.selection_drag_state,
1028 SelectionDragState::Dragging { .. }
1029 )
1030 {
1031 let point = position_map.point_for_position(mouse_position);
1032 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
1033 editor.selection_drag_state = SelectionDragState::None;
1034
1035 cx.stop_propagation();
1036 }
1037 }
1038
1039 fn pressure_click(
1040 editor: &mut Editor,
1041 event: &MousePressureEvent,
1042 position_map: &PositionMap,
1043 window: &mut Window,
1044 cx: &mut Context<Editor>,
1045 ) {
1046 let text_hitbox = &position_map.text_hitbox;
1047 let force_click_possible =
1048 matches!(editor.prev_pressure_stage, Some(PressureStage::Normal))
1049 && event.stage == PressureStage::Force;
1050
1051 editor.prev_pressure_stage = Some(event.stage);
1052
1053 if force_click_possible && text_hitbox.is_hovered(window) {
1054 let point = position_map.point_for_position(event.position);
1055 editor.handle_click_hovered_link(point, event.modifiers, window, cx);
1056 editor.selection_drag_state = SelectionDragState::None;
1057 cx.stop_propagation();
1058 }
1059 }
1060
1061 fn mouse_dragged(
1062 editor: &mut Editor,
1063 event: &MouseMoveEvent,
1064 position_map: &PositionMap,
1065 window: &mut Window,
1066 cx: &mut Context<Editor>,
1067 ) {
1068 if !editor.has_pending_selection()
1069 && matches!(editor.selection_drag_state, SelectionDragState::None)
1070 {
1071 return;
1072 }
1073
1074 let point_for_position = position_map.point_for_position(event.position);
1075 let text_hitbox = &position_map.text_hitbox;
1076
1077 let scroll_delta = {
1078 let text_bounds = text_hitbox.bounds;
1079 let mut scroll_delta = gpui::Point::<f32>::default();
1080 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
1081 let top = text_bounds.origin.y + vertical_margin;
1082 let bottom = text_bounds.bottom_left().y - vertical_margin;
1083 if event.position.y < top {
1084 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
1085 }
1086 if event.position.y > bottom {
1087 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
1088 }
1089
1090 // We need horizontal width of text
1091 let style = editor.style.clone().unwrap_or_default();
1092 let font_id = window.text_system().resolve_font(&style.text.font());
1093 let font_size = style.text.font_size.to_pixels(window.rem_size());
1094 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
1095
1096 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
1097
1098 let scroll_space: Pixels = scroll_margin_x * em_width;
1099
1100 let left = text_bounds.origin.x + scroll_space;
1101 let right = text_bounds.top_right().x - scroll_space;
1102
1103 if event.position.x < left {
1104 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
1105 }
1106 if event.position.x > right {
1107 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
1108 }
1109 scroll_delta
1110 };
1111
1112 if !editor.has_pending_selection() {
1113 let drop_anchor = position_map
1114 .snapshot
1115 .display_point_to_anchor(point_for_position.previous_valid, Bias::Left);
1116 match editor.selection_drag_state {
1117 SelectionDragState::Dragging {
1118 ref mut drop_cursor,
1119 ref mut hide_drop_cursor,
1120 ..
1121 } => {
1122 drop_cursor.start = drop_anchor;
1123 drop_cursor.end = drop_anchor;
1124 *hide_drop_cursor = !text_hitbox.is_hovered(window);
1125 editor.apply_scroll_delta(scroll_delta, window, cx);
1126 cx.notify();
1127 }
1128 SelectionDragState::ReadyToDrag {
1129 ref selection,
1130 ref click_position,
1131 ref mouse_down_time,
1132 } => {
1133 let drag_and_drop_delay = Duration::from_millis(
1134 EditorSettings::get_global(cx)
1135 .drag_and_drop_selection
1136 .delay
1137 .0,
1138 );
1139 if mouse_down_time.elapsed() >= drag_and_drop_delay {
1140 let drop_cursor = Selection {
1141 id: post_inc(&mut editor.selections.next_selection_id()),
1142 start: drop_anchor,
1143 end: drop_anchor,
1144 reversed: false,
1145 goal: SelectionGoal::None,
1146 };
1147 editor.selection_drag_state = SelectionDragState::Dragging {
1148 selection: selection.clone(),
1149 drop_cursor,
1150 hide_drop_cursor: false,
1151 };
1152 editor.apply_scroll_delta(scroll_delta, window, cx);
1153 cx.notify();
1154 } else {
1155 let click_point = position_map.point_for_position(*click_position);
1156 editor.selection_drag_state = SelectionDragState::None;
1157 editor.select(
1158 SelectPhase::Begin {
1159 position: click_point.previous_valid,
1160 add: false,
1161 click_count: 1,
1162 },
1163 window,
1164 cx,
1165 );
1166 editor.select(
1167 SelectPhase::Update {
1168 position: point_for_position.previous_valid,
1169 goal_column: point_for_position.exact_unclipped.column(),
1170 scroll_delta,
1171 },
1172 window,
1173 cx,
1174 );
1175 }
1176 }
1177 _ => {}
1178 }
1179 } else {
1180 editor.select(
1181 SelectPhase::Update {
1182 position: point_for_position.previous_valid,
1183 goal_column: point_for_position.exact_unclipped.column(),
1184 scroll_delta,
1185 },
1186 window,
1187 cx,
1188 );
1189 }
1190 }
1191
1192 pub(crate) fn mouse_moved(
1193 editor: &mut Editor,
1194 event: &MouseMoveEvent,
1195 position_map: &PositionMap,
1196 window: &mut Window,
1197 cx: &mut Context<Editor>,
1198 ) {
1199 let text_hitbox = &position_map.text_hitbox;
1200 let gutter_hitbox = &position_map.gutter_hitbox;
1201 let modifiers = event.modifiers;
1202 let text_hovered = text_hitbox.is_hovered(window);
1203 let gutter_hovered = gutter_hitbox.bounds.contains(&event.position);
1204 editor.set_gutter_hovered(gutter_hovered, cx);
1205 editor.show_mouse_cursor(cx);
1206
1207 let point_for_position = position_map.point_for_position(event.position);
1208 let valid_point = point_for_position.previous_valid;
1209
1210 let hovered_diff_control = position_map
1211 .diff_hunk_control_bounds
1212 .iter()
1213 .find(|(_, bounds)| bounds.contains(&event.position))
1214 .map(|(row, _)| *row);
1215
1216 let hovered_diff_hunk_row = if let Some(control_row) = hovered_diff_control {
1217 Some(control_row)
1218 } else if text_hovered {
1219 let current_row = valid_point.row();
1220 position_map.display_hunks.iter().find_map(|(hunk, _)| {
1221 if let DisplayDiffHunk::Unfolded {
1222 display_row_range, ..
1223 } = hunk
1224 {
1225 if display_row_range.contains(¤t_row) {
1226 Some(display_row_range.start)
1227 } else {
1228 None
1229 }
1230 } else {
1231 None
1232 }
1233 })
1234 } else {
1235 None
1236 };
1237
1238 if hovered_diff_hunk_row != editor.hovered_diff_hunk_row {
1239 editor.hovered_diff_hunk_row = hovered_diff_hunk_row;
1240 cx.notify();
1241 }
1242
1243 if let Some((bounds, buffer_id, blame_entry)) = &position_map.inline_blame_bounds {
1244 let mouse_over_inline_blame = bounds.contains(&event.position);
1245 let mouse_over_popover = editor
1246 .inline_blame_popover
1247 .as_ref()
1248 .and_then(|state| state.popover_bounds)
1249 .is_some_and(|bounds| bounds.contains(&event.position));
1250 let keyboard_grace = editor
1251 .inline_blame_popover
1252 .as_ref()
1253 .is_some_and(|state| state.keyboard_grace);
1254
1255 if mouse_over_inline_blame || mouse_over_popover {
1256 editor.show_blame_popover(*buffer_id, blame_entry, event.position, false, cx);
1257 } else if !keyboard_grace {
1258 editor.hide_blame_popover(false, cx);
1259 }
1260 } else {
1261 let keyboard_grace = editor
1262 .inline_blame_popover
1263 .as_ref()
1264 .is_some_and(|state| state.keyboard_grace);
1265 if !keyboard_grace {
1266 editor.hide_blame_popover(false, cx);
1267 }
1268 }
1269
1270 // Handle diff review indicator when gutter is hovered in diff mode with AI enabled
1271 let show_diff_review = editor.show_diff_review_button()
1272 && cx.has_flag::<DiffReviewFeatureFlag>()
1273 && !DisableAiSettings::get_global(cx).disable_ai;
1274
1275 let diff_review_indicator = if gutter_hovered && show_diff_review {
1276 let is_visible = editor
1277 .gutter_diff_review_indicator
1278 .0
1279 .is_some_and(|indicator| indicator.is_active);
1280
1281 if !is_visible {
1282 editor
1283 .gutter_diff_review_indicator
1284 .1
1285 .get_or_insert_with(|| {
1286 cx.spawn(async move |this, cx| {
1287 cx.background_executor()
1288 .timer(Duration::from_millis(200))
1289 .await;
1290
1291 this.update(cx, |this, cx| {
1292 if let Some(indicator) =
1293 this.gutter_diff_review_indicator.0.as_mut()
1294 {
1295 indicator.is_active = true;
1296 cx.notify();
1297 }
1298 })
1299 .ok();
1300 })
1301 });
1302 }
1303
1304 Some(PhantomDiffReviewIndicator {
1305 display_row: valid_point.row(),
1306 is_active: is_visible,
1307 })
1308 } else {
1309 editor.gutter_diff_review_indicator.1 = None;
1310 None
1311 };
1312
1313 if diff_review_indicator != editor.gutter_diff_review_indicator.0 {
1314 editor.gutter_diff_review_indicator.0 = diff_review_indicator;
1315 cx.notify();
1316 }
1317
1318 // Don't show breakpoint indicator when diff review indicator is active on this row
1319 let is_on_diff_review_button_row = diff_review_indicator.is_some_and(|indicator| {
1320 indicator.is_active && indicator.display_row == valid_point.row()
1321 });
1322
1323 let breakpoint_indicator = if gutter_hovered && !is_on_diff_review_button_row {
1324 let buffer_anchor = position_map
1325 .snapshot
1326 .display_point_to_anchor(valid_point, Bias::Left);
1327
1328 if let Some((buffer_snapshot, file)) = position_map
1329 .snapshot
1330 .buffer_snapshot()
1331 .buffer_for_excerpt(buffer_anchor.excerpt_id)
1332 .and_then(|buffer| buffer.file().map(|file| (buffer, file)))
1333 {
1334 let as_point = text::ToPoint::to_point(&buffer_anchor.text_anchor, buffer_snapshot);
1335
1336 let is_visible = editor
1337 .gutter_breakpoint_indicator
1338 .0
1339 .is_some_and(|indicator| indicator.is_active);
1340
1341 let has_existing_breakpoint =
1342 editor.breakpoint_store.as_ref().is_some_and(|store| {
1343 let Some(project) = &editor.project else {
1344 return false;
1345 };
1346 let Some(abs_path) = project.read(cx).absolute_path(
1347 &ProjectPath {
1348 path: file.path().clone(),
1349 worktree_id: file.worktree_id(cx),
1350 },
1351 cx,
1352 ) else {
1353 return false;
1354 };
1355 store
1356 .read(cx)
1357 .breakpoint_at_row(&abs_path, as_point.row, cx)
1358 .is_some()
1359 });
1360
1361 if !is_visible {
1362 editor.gutter_breakpoint_indicator.1.get_or_insert_with(|| {
1363 cx.spawn(async move |this, cx| {
1364 cx.background_executor()
1365 .timer(Duration::from_millis(200))
1366 .await;
1367
1368 this.update(cx, |this, cx| {
1369 if let Some(indicator) = this.gutter_breakpoint_indicator.0.as_mut()
1370 {
1371 indicator.is_active = true;
1372 cx.notify();
1373 }
1374 })
1375 .ok();
1376 })
1377 });
1378 }
1379
1380 Some(PhantomBreakpointIndicator {
1381 display_row: valid_point.row(),
1382 is_active: is_visible,
1383 collides_with_existing_breakpoint: has_existing_breakpoint,
1384 })
1385 } else {
1386 editor.gutter_breakpoint_indicator.1 = None;
1387 None
1388 }
1389 } else {
1390 editor.gutter_breakpoint_indicator.1 = None;
1391 None
1392 };
1393
1394 if &breakpoint_indicator != &editor.gutter_breakpoint_indicator.0 {
1395 editor.gutter_breakpoint_indicator.0 = breakpoint_indicator;
1396 cx.notify();
1397 }
1398
1399 // Don't trigger hover popover if mouse is hovering over context menu
1400 if text_hovered {
1401 editor.update_hovered_link(
1402 point_for_position,
1403 &position_map.snapshot,
1404 modifiers,
1405 window,
1406 cx,
1407 );
1408
1409 if let Some(point) = point_for_position.as_valid() {
1410 let anchor = position_map
1411 .snapshot
1412 .buffer_snapshot()
1413 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
1414 hover_at(editor, Some(anchor), window, cx);
1415 Self::update_visible_cursor(editor, point, position_map, window, cx);
1416 } else {
1417 editor.update_inlay_link_and_hover_points(
1418 &position_map.snapshot,
1419 point_for_position,
1420 modifiers.secondary(),
1421 modifiers.shift,
1422 window,
1423 cx,
1424 );
1425 }
1426 } else {
1427 editor.hide_hovered_link(cx);
1428 hover_at(editor, None, window, cx);
1429 }
1430 }
1431
1432 fn update_visible_cursor(
1433 editor: &mut Editor,
1434 point: DisplayPoint,
1435 position_map: &PositionMap,
1436 window: &mut Window,
1437 cx: &mut Context<Editor>,
1438 ) {
1439 let snapshot = &position_map.snapshot;
1440 let Some(hub) = editor.collaboration_hub() else {
1441 return;
1442 };
1443 let start = snapshot.display_snapshot.clip_point(
1444 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
1445 Bias::Left,
1446 );
1447 let end = snapshot.display_snapshot.clip_point(
1448 DisplayPoint::new(
1449 point.row(),
1450 (point.column() + 1).min(snapshot.line_len(point.row())),
1451 ),
1452 Bias::Right,
1453 );
1454
1455 let range = snapshot
1456 .buffer_snapshot()
1457 .anchor_before(start.to_point(&snapshot.display_snapshot))
1458 ..snapshot
1459 .buffer_snapshot()
1460 .anchor_after(end.to_point(&snapshot.display_snapshot));
1461
1462 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
1463 return;
1464 };
1465 let key = crate::HoveredCursor {
1466 replica_id: selection.replica_id,
1467 selection_id: selection.selection.id,
1468 };
1469 editor.hovered_cursors.insert(
1470 key.clone(),
1471 cx.spawn_in(window, async move |editor, cx| {
1472 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
1473 editor
1474 .update(cx, |editor, cx| {
1475 editor.hovered_cursors.remove(&key);
1476 cx.notify();
1477 })
1478 .ok();
1479 }),
1480 );
1481 cx.notify()
1482 }
1483
1484 fn layout_selections(
1485 &self,
1486 start_anchor: Anchor,
1487 end_anchor: Anchor,
1488 local_selections: &[Selection<Point>],
1489 snapshot: &EditorSnapshot,
1490 start_row: DisplayRow,
1491 end_row: DisplayRow,
1492 window: &mut Window,
1493 cx: &mut App,
1494 ) -> (
1495 Vec<(PlayerColor, Vec<SelectionLayout>)>,
1496 BTreeMap<DisplayRow, LineHighlightSpec>,
1497 Option<DisplayPoint>,
1498 ) {
1499 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1500 let mut active_rows = BTreeMap::new();
1501 let mut newest_selection_head = None;
1502
1503 let Some(editor_with_selections) = self.editor_with_selections(cx) else {
1504 return (selections, active_rows, newest_selection_head);
1505 };
1506
1507 editor_with_selections.update(cx, |editor, cx| {
1508 if editor.show_local_selections {
1509 let mut layouts = Vec::new();
1510 let newest = editor.selections.newest(&editor.display_snapshot(cx));
1511 for selection in local_selections.iter().cloned() {
1512 let is_empty = selection.start == selection.end;
1513 let is_newest = selection == newest;
1514
1515 let layout = SelectionLayout::new(
1516 selection,
1517 editor.selections.line_mode(),
1518 editor.cursor_offset_on_selection,
1519 editor.cursor_shape,
1520 &snapshot.display_snapshot,
1521 is_newest,
1522 editor.leader_id.is_none(),
1523 None,
1524 );
1525 if is_newest {
1526 newest_selection_head = Some(layout.head);
1527 }
1528
1529 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1530 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1531 {
1532 let contains_non_empty_selection = active_rows
1533 .entry(DisplayRow(row))
1534 .or_insert_with(LineHighlightSpec::default);
1535 contains_non_empty_selection.selection |= !is_empty;
1536 }
1537 layouts.push(layout);
1538 }
1539
1540 let mut player = editor.current_user_player_color(cx);
1541 if !editor.is_focused(window) {
1542 const UNFOCUS_EDITOR_SELECTION_OPACITY: f32 = 0.5;
1543 player.selection = player.selection.opacity(UNFOCUS_EDITOR_SELECTION_OPACITY);
1544 }
1545 selections.push((player, layouts));
1546
1547 if let SelectionDragState::Dragging {
1548 ref selection,
1549 ref drop_cursor,
1550 ref hide_drop_cursor,
1551 } = editor.selection_drag_state
1552 && !hide_drop_cursor
1553 && (drop_cursor
1554 .start
1555 .cmp(&selection.start, &snapshot.buffer_snapshot())
1556 .eq(&Ordering::Less)
1557 || drop_cursor
1558 .end
1559 .cmp(&selection.end, &snapshot.buffer_snapshot())
1560 .eq(&Ordering::Greater))
1561 {
1562 let drag_cursor_layout = SelectionLayout::new(
1563 drop_cursor.clone(),
1564 false,
1565 editor.cursor_offset_on_selection,
1566 CursorShape::Bar,
1567 &snapshot.display_snapshot,
1568 false,
1569 false,
1570 None,
1571 );
1572 let absent_color = cx.theme().players().absent();
1573 selections.push((absent_color, vec![drag_cursor_layout]));
1574 }
1575 }
1576
1577 if let Some(collaboration_hub) = &editor.collaboration_hub {
1578 // When following someone, render the local selections in their color.
1579 if let Some(leader_id) = editor.leader_id {
1580 match leader_id {
1581 CollaboratorId::PeerId(peer_id) => {
1582 if let Some(collaborator) =
1583 collaboration_hub.collaborators(cx).get(&peer_id)
1584 && let Some(participant_index) = collaboration_hub
1585 .user_participant_indices(cx)
1586 .get(&collaborator.user_id)
1587 && let Some((local_selection_style, _)) = selections.first_mut()
1588 {
1589 *local_selection_style = cx
1590 .theme()
1591 .players()
1592 .color_for_participant(participant_index.0);
1593 }
1594 }
1595 CollaboratorId::Agent => {
1596 if let Some((local_selection_style, _)) = selections.first_mut() {
1597 *local_selection_style = cx.theme().players().agent();
1598 }
1599 }
1600 }
1601 }
1602
1603 let mut remote_selections = HashMap::default();
1604 for selection in snapshot.remote_selections_in_range(
1605 &(start_anchor..end_anchor),
1606 collaboration_hub.as_ref(),
1607 cx,
1608 ) {
1609 // Don't re-render the leader's selections, since the local selections
1610 // match theirs.
1611 if Some(selection.collaborator_id) == editor.leader_id {
1612 continue;
1613 }
1614 let key = HoveredCursor {
1615 replica_id: selection.replica_id,
1616 selection_id: selection.selection.id,
1617 };
1618
1619 let is_shown =
1620 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1621
1622 remote_selections
1623 .entry(selection.replica_id)
1624 .or_insert((selection.color, Vec::new()))
1625 .1
1626 .push(SelectionLayout::new(
1627 selection.selection,
1628 selection.line_mode,
1629 editor.cursor_offset_on_selection,
1630 selection.cursor_shape,
1631 &snapshot.display_snapshot,
1632 false,
1633 false,
1634 if is_shown { selection.user_name } else { None },
1635 ));
1636 }
1637
1638 selections.extend(remote_selections.into_values());
1639 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1640 let cursor_offset_on_selection = editor.cursor_offset_on_selection;
1641
1642 let layouts = snapshot
1643 .buffer_snapshot()
1644 .selections_in_range(&(start_anchor..end_anchor), true)
1645 .map(move |(_, line_mode, cursor_shape, selection)| {
1646 SelectionLayout::new(
1647 selection,
1648 line_mode,
1649 cursor_offset_on_selection,
1650 cursor_shape,
1651 &snapshot.display_snapshot,
1652 false,
1653 false,
1654 None,
1655 )
1656 })
1657 .collect::<Vec<_>>();
1658 let player = editor.current_user_player_color(cx);
1659 selections.push((player, layouts));
1660 }
1661 });
1662
1663 #[cfg(debug_assertions)]
1664 Self::layout_debug_ranges(
1665 &mut selections,
1666 start_anchor..end_anchor,
1667 &snapshot.display_snapshot,
1668 cx,
1669 );
1670
1671 (selections, active_rows, newest_selection_head)
1672 }
1673
1674 fn collect_cursors(
1675 &self,
1676 snapshot: &EditorSnapshot,
1677 cx: &mut App,
1678 ) -> Vec<(DisplayPoint, Hsla)> {
1679 let editor = self.editor.read(cx);
1680 let mut cursors = Vec::new();
1681 let mut skip_local = false;
1682 let mut add_cursor = |anchor: Anchor, color| {
1683 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1684 };
1685 // Remote cursors
1686 if let Some(collaboration_hub) = &editor.collaboration_hub {
1687 for remote_selection in snapshot.remote_selections_in_range(
1688 &(Anchor::min()..Anchor::max()),
1689 collaboration_hub.deref(),
1690 cx,
1691 ) {
1692 add_cursor(
1693 remote_selection.selection.head(),
1694 remote_selection.color.cursor,
1695 );
1696 if Some(remote_selection.collaborator_id) == editor.leader_id {
1697 skip_local = true;
1698 }
1699 }
1700 }
1701 // Local cursors
1702 if !skip_local {
1703 let color = cx.theme().players().local().cursor;
1704 editor
1705 .selections
1706 .disjoint_anchors()
1707 .iter()
1708 .for_each(|selection| {
1709 add_cursor(selection.head(), color);
1710 });
1711 if let Some(ref selection) = editor.selections.pending_anchor() {
1712 add_cursor(selection.head(), color);
1713 }
1714 }
1715 cursors
1716 }
1717
1718 fn layout_visible_cursors(
1719 &self,
1720 snapshot: &EditorSnapshot,
1721 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1722 row_block_types: &HashMap<DisplayRow, bool>,
1723 visible_display_row_range: Range<DisplayRow>,
1724 line_layouts: &[LineWithInvisibles],
1725 text_hitbox: &Hitbox,
1726 content_origin: gpui::Point<Pixels>,
1727 scroll_position: gpui::Point<ScrollOffset>,
1728 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
1729 line_height: Pixels,
1730 em_width: Pixels,
1731 em_advance: Pixels,
1732 autoscroll_containing_element: bool,
1733 window: &mut Window,
1734 cx: &mut App,
1735 ) -> Vec<CursorLayout> {
1736 let mut autoscroll_bounds = None;
1737 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1738 let mut cursors = Vec::new();
1739
1740 let show_local_cursors = editor.show_local_cursors(window, cx);
1741
1742 for (player_color, selections) in selections {
1743 for selection in selections {
1744 let cursor_position = selection.head;
1745
1746 let in_range = visible_display_row_range.contains(&cursor_position.row());
1747 if (selection.is_local && !show_local_cursors)
1748 || !in_range
1749 || row_block_types.get(&cursor_position.row()) == Some(&true)
1750 {
1751 continue;
1752 }
1753
1754 let cursor_row_layout = &line_layouts
1755 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1756 let cursor_column = cursor_position.column() as usize;
1757
1758 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column)
1759 + cursor_row_layout
1760 .alignment_offset(self.style.text.text_align, text_hitbox.size.width);
1761 let cursor_next_x = cursor_row_layout.x_for_index(cursor_column + 1)
1762 + cursor_row_layout
1763 .alignment_offset(self.style.text.text_align, text_hitbox.size.width);
1764 let mut block_width = cursor_next_x - cursor_character_x;
1765 if block_width == Pixels::ZERO {
1766 block_width = em_advance;
1767 }
1768 let block_text = if let CursorShape::Block = selection.cursor_shape {
1769 snapshot
1770 .grapheme_at(cursor_position)
1771 .or_else(|| {
1772 if snapshot.is_empty() {
1773 snapshot.placeholder_text().and_then(|s| {
1774 s.graphemes(true).next().map(|s| s.to_string().into())
1775 })
1776 } else {
1777 None
1778 }
1779 })
1780 .map(|text| {
1781 let len = text.len();
1782
1783 let mut font = cursor_row_layout
1784 .font_id_for_index(cursor_column)
1785 .and_then(|cursor_font_id| {
1786 window.text_system().get_font_for_id(cursor_font_id)
1787 })
1788 .unwrap_or(self.style.text.font());
1789 font.features = self.style.text.font_features.clone();
1790
1791 // Invert the text color for the block cursor. Ensure that the text
1792 // color is opaque enough to be visible against the background color.
1793 //
1794 // 0.75 is an arbitrary threshold to determine if the background color is
1795 // opaque enough to use as a text color.
1796 //
1797 // TODO: In the future we should ensure themes have a `text_inverse` color.
1798 let color = if cx.theme().colors().editor_background.a < 0.75 {
1799 match cx.theme().appearance {
1800 Appearance::Dark => Hsla::black(),
1801 Appearance::Light => Hsla::white(),
1802 }
1803 } else {
1804 cx.theme().colors().editor_background
1805 };
1806
1807 window.text_system().shape_line(
1808 text,
1809 cursor_row_layout.font_size,
1810 &[TextRun {
1811 len,
1812 font,
1813 color,
1814 ..Default::default()
1815 }],
1816 None,
1817 )
1818 })
1819 } else {
1820 None
1821 };
1822
1823 let x = cursor_character_x - scroll_pixel_position.x.into();
1824 let y = ((cursor_position.row().as_f64() - scroll_position.y)
1825 * ScrollPixelOffset::from(line_height))
1826 .into();
1827 if selection.is_newest {
1828 editor.pixel_position_of_newest_cursor = Some(point(
1829 text_hitbox.origin.x + x + block_width / 2.,
1830 text_hitbox.origin.y + y + line_height / 2.,
1831 ));
1832
1833 if autoscroll_containing_element {
1834 let top = text_hitbox.origin.y
1835 + ((cursor_position.row().as_f64() - scroll_position.y - 3.)
1836 .max(0.)
1837 * ScrollPixelOffset::from(line_height))
1838 .into();
1839 let left = text_hitbox.origin.x
1840 + ((cursor_position.column() as ScrollOffset
1841 - scroll_position.x
1842 - 3.)
1843 .max(0.)
1844 * ScrollPixelOffset::from(em_width))
1845 .into();
1846
1847 let bottom = text_hitbox.origin.y
1848 + ((cursor_position.row().as_f64() - scroll_position.y + 4.)
1849 * ScrollPixelOffset::from(line_height))
1850 .into();
1851 let right = text_hitbox.origin.x
1852 + ((cursor_position.column() as ScrollOffset - scroll_position.x
1853 + 4.)
1854 * ScrollPixelOffset::from(em_width))
1855 .into();
1856
1857 autoscroll_bounds =
1858 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1859 }
1860 }
1861
1862 let mut cursor = CursorLayout {
1863 color: player_color.cursor,
1864 block_width,
1865 origin: point(x, y),
1866 line_height,
1867 shape: selection.cursor_shape,
1868 block_text,
1869 cursor_name: None,
1870 };
1871 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1872 string: name,
1873 color: self.style.background,
1874 is_top_row: cursor_position.row().0 == 0,
1875 });
1876 cursor.layout(content_origin, cursor_name, window, cx);
1877 cursors.push(cursor);
1878 }
1879 }
1880
1881 cursors
1882 });
1883
1884 if let Some(bounds) = autoscroll_bounds {
1885 window.request_autoscroll(bounds);
1886 }
1887
1888 cursor_layouts
1889 }
1890
1891 fn layout_scrollbars(
1892 &self,
1893 snapshot: &EditorSnapshot,
1894 scrollbar_layout_information: &ScrollbarLayoutInformation,
1895 content_offset: gpui::Point<Pixels>,
1896 scroll_position: gpui::Point<ScrollOffset>,
1897 non_visible_cursors: bool,
1898 right_margin: Pixels,
1899 editor_width: Pixels,
1900 window: &mut Window,
1901 cx: &mut App,
1902 ) -> Option<EditorScrollbars> {
1903 let show_scrollbars = self.editor.read(cx).show_scrollbars;
1904 if (!show_scrollbars.horizontal && !show_scrollbars.vertical)
1905 || self.style.scrollbar_width.is_zero()
1906 {
1907 return None;
1908 }
1909
1910 // If a drag took place after we started dragging the scrollbar,
1911 // cancel the scrollbar drag.
1912 if cx.has_active_drag() {
1913 self.editor.update(cx, |editor, cx| {
1914 editor.scroll_manager.reset_scrollbar_state(cx)
1915 });
1916 }
1917
1918 let editor_settings = EditorSettings::get_global(cx);
1919 let scrollbar_settings = editor_settings.scrollbar;
1920 let show_scrollbars = match scrollbar_settings.show {
1921 ShowScrollbar::Auto => {
1922 let editor = self.editor.read(cx);
1923 let is_singleton = editor.buffer_kind(cx) == ItemBufferKind::Singleton;
1924 // Git
1925 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot().has_diff_hunks())
1926 ||
1927 // Buffer Search Results
1928 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1929 ||
1930 // Selected Text Occurrences
1931 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1932 ||
1933 // Selected Symbol Occurrences
1934 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1935 ||
1936 // Diagnostics
1937 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot().has_diagnostics())
1938 ||
1939 // Cursors out of sight
1940 non_visible_cursors
1941 ||
1942 // Scrollmanager
1943 editor.scroll_manager.scrollbars_visible()
1944 }
1945 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1946 ShowScrollbar::Always => true,
1947 ShowScrollbar::Never => return None,
1948 };
1949
1950 // The horizontal scrollbar is usually slightly offset to align nicely with
1951 // indent guides. However, this offset is not needed if indent guides are
1952 // disabled for the current editor.
1953 let content_offset = self
1954 .editor
1955 .read(cx)
1956 .show_indent_guides
1957 .is_none_or(|should_show| should_show)
1958 .then_some(content_offset)
1959 .unwrap_or_default();
1960
1961 Some(EditorScrollbars::from_scrollbar_axes(
1962 ScrollbarAxes {
1963 horizontal: scrollbar_settings.axes.horizontal
1964 && self.editor.read(cx).show_scrollbars.horizontal,
1965 vertical: scrollbar_settings.axes.vertical
1966 && self.editor.read(cx).show_scrollbars.vertical,
1967 },
1968 scrollbar_layout_information,
1969 content_offset,
1970 scroll_position,
1971 self.style.scrollbar_width,
1972 right_margin,
1973 editor_width,
1974 show_scrollbars,
1975 self.editor.read(cx).scroll_manager.active_scrollbar_state(),
1976 window,
1977 ))
1978 }
1979
1980 fn layout_minimap(
1981 &self,
1982 snapshot: &EditorSnapshot,
1983 minimap_width: Pixels,
1984 scroll_position: gpui::Point<f64>,
1985 scrollbar_layout_information: &ScrollbarLayoutInformation,
1986 scrollbar_layout: Option<&EditorScrollbars>,
1987 window: &mut Window,
1988 cx: &mut App,
1989 ) -> Option<MinimapLayout> {
1990 let minimap_editor = self.editor.read(cx).minimap().cloned()?;
1991
1992 let minimap_settings = EditorSettings::get_global(cx).minimap;
1993
1994 if minimap_settings.on_active_editor() {
1995 let active_editor = self.editor.read(cx).workspace().and_then(|ws| {
1996 ws.read(cx)
1997 .active_pane()
1998 .read(cx)
1999 .active_item()
2000 .and_then(|i| i.act_as::<Editor>(cx))
2001 });
2002 if active_editor.is_some_and(|e| e != self.editor) {
2003 return None;
2004 }
2005 }
2006
2007 if !snapshot.mode.is_full()
2008 || minimap_width.is_zero()
2009 || matches!(
2010 minimap_settings.show,
2011 ShowMinimap::Auto if scrollbar_layout.is_none_or(|layout| !layout.visible)
2012 )
2013 {
2014 return None;
2015 }
2016
2017 const MINIMAP_AXIS: ScrollbarAxis = ScrollbarAxis::Vertical;
2018
2019 let ScrollbarLayoutInformation {
2020 editor_bounds,
2021 scroll_range,
2022 glyph_grid_cell,
2023 } = scrollbar_layout_information;
2024
2025 let line_height = glyph_grid_cell.height;
2026 let scroll_position = scroll_position.along(MINIMAP_AXIS);
2027
2028 let top_right_anchor = scrollbar_layout
2029 .and_then(|layout| layout.vertical.as_ref())
2030 .map(|vertical_scrollbar| vertical_scrollbar.hitbox.origin)
2031 .unwrap_or_else(|| editor_bounds.top_right());
2032
2033 let thumb_state = self
2034 .editor
2035 .read_with(cx, |editor, _| editor.scroll_manager.minimap_thumb_state());
2036
2037 let show_thumb = match minimap_settings.thumb {
2038 MinimapThumb::Always => true,
2039 MinimapThumb::Hover => thumb_state.is_some(),
2040 };
2041
2042 let minimap_bounds = Bounds::from_corner_and_size(
2043 Corner::TopRight,
2044 top_right_anchor,
2045 size(minimap_width, editor_bounds.size.height),
2046 );
2047 let minimap_line_height = self.get_minimap_line_height(
2048 minimap_editor
2049 .read(cx)
2050 .text_style_refinement
2051 .as_ref()
2052 .and_then(|refinement| refinement.font_size)
2053 .unwrap_or(MINIMAP_FONT_SIZE),
2054 window,
2055 cx,
2056 );
2057 let minimap_height = minimap_bounds.size.height;
2058
2059 let visible_editor_lines = (editor_bounds.size.height / line_height) as f64;
2060 let total_editor_lines = (scroll_range.height / line_height) as f64;
2061 let minimap_lines = (minimap_height / minimap_line_height) as f64;
2062
2063 let minimap_scroll_top = MinimapLayout::calculate_minimap_top_offset(
2064 total_editor_lines,
2065 visible_editor_lines,
2066 minimap_lines,
2067 scroll_position,
2068 );
2069
2070 let layout = ScrollbarLayout::for_minimap(
2071 window.insert_hitbox(minimap_bounds, HitboxBehavior::Normal),
2072 visible_editor_lines,
2073 total_editor_lines,
2074 minimap_line_height,
2075 scroll_position,
2076 minimap_scroll_top,
2077 show_thumb,
2078 )
2079 .with_thumb_state(thumb_state);
2080
2081 minimap_editor.update(cx, |editor, cx| {
2082 editor.set_scroll_position(point(0., minimap_scroll_top), window, cx)
2083 });
2084
2085 // Required for the drop shadow to be visible
2086 const PADDING_OFFSET: Pixels = px(4.);
2087
2088 let mut minimap = div()
2089 .size_full()
2090 .shadow_xs()
2091 .px(PADDING_OFFSET)
2092 .child(minimap_editor)
2093 .into_any_element();
2094
2095 let extended_bounds = minimap_bounds.extend(Edges {
2096 right: PADDING_OFFSET,
2097 left: PADDING_OFFSET,
2098 ..Default::default()
2099 });
2100 minimap.layout_as_root(extended_bounds.size.into(), window, cx);
2101 window.with_absolute_element_offset(extended_bounds.origin, |window| {
2102 minimap.prepaint(window, cx)
2103 });
2104
2105 Some(MinimapLayout {
2106 minimap,
2107 thumb_layout: layout,
2108 thumb_border_style: minimap_settings.thumb_border,
2109 minimap_line_height,
2110 minimap_scroll_top,
2111 max_scroll_top: total_editor_lines,
2112 })
2113 }
2114
2115 fn get_minimap_line_height(
2116 &self,
2117 font_size: AbsoluteLength,
2118 window: &mut Window,
2119 cx: &mut App,
2120 ) -> Pixels {
2121 let rem_size = self.rem_size(cx).unwrap_or(window.rem_size());
2122 let mut text_style = self.style.text.clone();
2123 text_style.font_size = font_size;
2124 text_style.line_height_in_pixels(rem_size)
2125 }
2126
2127 fn get_minimap_width(
2128 &self,
2129 minimap_settings: &Minimap,
2130 scrollbars_shown: bool,
2131 text_width: Pixels,
2132 em_width: Pixels,
2133 font_size: Pixels,
2134 rem_size: Pixels,
2135 cx: &App,
2136 ) -> Option<Pixels> {
2137 if minimap_settings.show == ShowMinimap::Auto && !scrollbars_shown {
2138 return None;
2139 }
2140
2141 let minimap_font_size = self.editor.read_with(cx, |editor, cx| {
2142 editor.minimap().map(|minimap_editor| {
2143 minimap_editor
2144 .read(cx)
2145 .text_style_refinement
2146 .as_ref()
2147 .and_then(|refinement| refinement.font_size)
2148 .unwrap_or(MINIMAP_FONT_SIZE)
2149 })
2150 })?;
2151
2152 let minimap_em_width = em_width * (minimap_font_size.to_pixels(rem_size) / font_size);
2153
2154 let minimap_width = (text_width * MinimapLayout::MINIMAP_WIDTH_PCT)
2155 .min(minimap_em_width * minimap_settings.max_width_columns.get() as f32);
2156
2157 (minimap_width >= minimap_em_width * MinimapLayout::MINIMAP_MIN_WIDTH_COLUMNS)
2158 .then_some(minimap_width)
2159 }
2160
2161 fn prepaint_crease_toggles(
2162 &self,
2163 crease_toggles: &mut [Option<AnyElement>],
2164 line_height: Pixels,
2165 gutter_dimensions: &GutterDimensions,
2166 gutter_settings: crate::editor_settings::Gutter,
2167 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2168 gutter_hitbox: &Hitbox,
2169 window: &mut Window,
2170 cx: &mut App,
2171 ) {
2172 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
2173 if let Some(crease_toggle) = crease_toggle {
2174 debug_assert!(gutter_settings.folds);
2175 let available_space = size(
2176 AvailableSpace::MinContent,
2177 AvailableSpace::Definite(line_height * 0.55),
2178 );
2179 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
2180
2181 let position = point(
2182 gutter_dimensions.width - gutter_dimensions.right_padding,
2183 ix as f32 * line_height
2184 - (scroll_pixel_position.y % ScrollPixelOffset::from(line_height)).into(),
2185 );
2186 let centering_offset = point(
2187 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
2188 (line_height - crease_toggle_size.height) / 2.,
2189 );
2190 let origin = gutter_hitbox.origin + position + centering_offset;
2191 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
2192 }
2193 }
2194 }
2195
2196 fn prepaint_expand_toggles(
2197 &self,
2198 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
2199 window: &mut Window,
2200 cx: &mut App,
2201 ) {
2202 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
2203 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
2204 expand_toggle.layout_as_root(available_space, window, cx);
2205 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
2206 }
2207 }
2208
2209 fn prepaint_crease_trailers(
2210 &self,
2211 trailers: Vec<Option<AnyElement>>,
2212 lines: &[LineWithInvisibles],
2213 line_height: Pixels,
2214 content_origin: gpui::Point<Pixels>,
2215 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2216 em_width: Pixels,
2217 window: &mut Window,
2218 cx: &mut App,
2219 ) -> Vec<Option<CreaseTrailerLayout>> {
2220 trailers
2221 .into_iter()
2222 .enumerate()
2223 .map(|(ix, element)| {
2224 let mut element = element?;
2225 let available_space = size(
2226 AvailableSpace::MinContent,
2227 AvailableSpace::Definite(line_height),
2228 );
2229 let size = element.layout_as_root(available_space, window, cx);
2230
2231 let line = &lines[ix];
2232 let padding = if line.width == Pixels::ZERO {
2233 Pixels::ZERO
2234 } else {
2235 4. * em_width
2236 };
2237 let position = point(
2238 Pixels::from(scroll_pixel_position.x) + line.width + padding,
2239 ix as f32 * line_height
2240 - (scroll_pixel_position.y % ScrollPixelOffset::from(line_height)).into(),
2241 );
2242 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
2243 let origin = content_origin + position + centering_offset;
2244 element.prepaint_as_root(origin, available_space, window, cx);
2245 Some(CreaseTrailerLayout {
2246 element,
2247 bounds: Bounds::new(origin, size),
2248 })
2249 })
2250 .collect()
2251 }
2252
2253 // Folds contained in a hunk are ignored apart from shrinking visual size
2254 // If a fold contains any hunks then that fold line is marked as modified
2255 fn layout_gutter_diff_hunks(
2256 &self,
2257 line_height: Pixels,
2258 gutter_hitbox: &Hitbox,
2259 display_rows: Range<DisplayRow>,
2260 snapshot: &EditorSnapshot,
2261 window: &mut Window,
2262 cx: &mut App,
2263 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
2264 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
2265 let mut display_hunks = snapshot
2266 .display_diff_hunks_for_rows(display_rows, folded_buffers)
2267 .map(|hunk| (hunk, None))
2268 .collect::<Vec<_>>();
2269 let git_gutter_setting = ProjectSettings::get_global(cx).git.git_gutter;
2270 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
2271 for (hunk, hitbox) in &mut display_hunks {
2272 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
2273 let hunk_bounds =
2274 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
2275 *hitbox = Some(window.insert_hitbox(hunk_bounds, HitboxBehavior::BlockMouse));
2276 }
2277 }
2278 }
2279
2280 display_hunks
2281 }
2282
2283 fn layout_inline_diagnostics(
2284 &self,
2285 line_layouts: &[LineWithInvisibles],
2286 crease_trailers: &[Option<CreaseTrailerLayout>],
2287 row_block_types: &HashMap<DisplayRow, bool>,
2288 content_origin: gpui::Point<Pixels>,
2289 scroll_position: gpui::Point<ScrollOffset>,
2290 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2291 edit_prediction_popover_origin: Option<gpui::Point<Pixels>>,
2292 start_row: DisplayRow,
2293 end_row: DisplayRow,
2294 line_height: Pixels,
2295 em_width: Pixels,
2296 style: &EditorStyle,
2297 window: &mut Window,
2298 cx: &mut App,
2299 ) -> HashMap<DisplayRow, AnyElement> {
2300 let max_severity = match self
2301 .editor
2302 .read(cx)
2303 .inline_diagnostics_enabled()
2304 .then(|| {
2305 ProjectSettings::get_global(cx)
2306 .diagnostics
2307 .inline
2308 .max_severity
2309 .unwrap_or_else(|| self.editor.read(cx).diagnostics_max_severity)
2310 .into_lsp()
2311 })
2312 .flatten()
2313 {
2314 Some(max_severity) => max_severity,
2315 None => return HashMap::default(),
2316 };
2317
2318 let active_diagnostics_group =
2319 if let ActiveDiagnostic::Group(group) = &self.editor.read(cx).active_diagnostics {
2320 Some(group.group_id)
2321 } else {
2322 None
2323 };
2324
2325 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
2326 let snapshot = editor.snapshot(window, cx);
2327 editor
2328 .inline_diagnostics
2329 .iter()
2330 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
2331 .filter(|(_, diagnostic)| match active_diagnostics_group {
2332 Some(active_diagnostics_group) => {
2333 // Active diagnostics are all shown in the editor already, no need to display them inline
2334 diagnostic.group_id != active_diagnostics_group
2335 }
2336 None => true,
2337 })
2338 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
2339 .skip_while(|(point, _)| point.row() < start_row)
2340 .take_while(|(point, _)| point.row() < end_row)
2341 .filter(|(point, _)| !row_block_types.contains_key(&point.row()))
2342 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
2343 acc.entry(point.row())
2344 .or_insert_with(Vec::new)
2345 .push(diagnostic);
2346 acc
2347 })
2348 });
2349
2350 if diagnostics_by_rows.is_empty() {
2351 return HashMap::default();
2352 }
2353
2354 let severity_to_color = |sev: &lsp::DiagnosticSeverity| match sev {
2355 &lsp::DiagnosticSeverity::ERROR => Color::Error,
2356 &lsp::DiagnosticSeverity::WARNING => Color::Warning,
2357 &lsp::DiagnosticSeverity::INFORMATION => Color::Info,
2358 &lsp::DiagnosticSeverity::HINT => Color::Hint,
2359 _ => Color::Error,
2360 };
2361
2362 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
2363 let min_x = column_pixels(
2364 &self.style,
2365 ProjectSettings::get_global(cx)
2366 .diagnostics
2367 .inline
2368 .min_column as usize,
2369 window,
2370 );
2371
2372 let mut elements = HashMap::default();
2373 for (row, mut diagnostics) in diagnostics_by_rows {
2374 diagnostics.sort_by_key(|diagnostic| {
2375 (
2376 diagnostic.severity,
2377 std::cmp::Reverse(diagnostic.is_primary),
2378 diagnostic.start.row,
2379 diagnostic.start.column,
2380 )
2381 });
2382
2383 let Some(diagnostic_to_render) = diagnostics
2384 .iter()
2385 .find(|diagnostic| diagnostic.is_primary)
2386 .or_else(|| diagnostics.first())
2387 else {
2388 continue;
2389 };
2390
2391 let pos_y = content_origin.y + line_height * (row.0 as f64 - scroll_position.y) as f32;
2392
2393 let window_ix = row.0.saturating_sub(start_row.0) as usize;
2394 let pos_x = {
2395 let crease_trailer_layout = &crease_trailers[window_ix];
2396 let line_layout = &line_layouts[window_ix];
2397
2398 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
2399 crease_trailer.bounds.right()
2400 } else {
2401 Pixels::from(
2402 ScrollPixelOffset::from(content_origin.x + line_layout.width)
2403 - scroll_pixel_position.x,
2404 )
2405 };
2406
2407 let padded_line = line_end + padding;
2408 let min_start = Pixels::from(
2409 ScrollPixelOffset::from(content_origin.x + min_x) - scroll_pixel_position.x,
2410 );
2411
2412 cmp::max(padded_line, min_start)
2413 };
2414
2415 let behind_edit_prediction_popover = edit_prediction_popover_origin
2416 .as_ref()
2417 .is_some_and(|edit_prediction_popover_origin| {
2418 (pos_y..pos_y + line_height).contains(&edit_prediction_popover_origin.y)
2419 });
2420 let opacity = if behind_edit_prediction_popover {
2421 0.5
2422 } else {
2423 1.0
2424 };
2425
2426 let mut element = h_flex()
2427 .id(("diagnostic", row.0))
2428 .h(line_height)
2429 .w_full()
2430 .px_1()
2431 .rounded_xs()
2432 .opacity(opacity)
2433 .bg(severity_to_color(&diagnostic_to_render.severity)
2434 .color(cx)
2435 .opacity(0.05))
2436 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
2437 .text_sm()
2438 .font(style.text.font())
2439 .child(diagnostic_to_render.message.clone())
2440 .into_any();
2441
2442 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
2443
2444 elements.insert(row, element);
2445 }
2446
2447 elements
2448 }
2449
2450 fn layout_inline_code_actions(
2451 &self,
2452 display_point: DisplayPoint,
2453 content_origin: gpui::Point<Pixels>,
2454 scroll_position: gpui::Point<ScrollOffset>,
2455 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2456 line_height: Pixels,
2457 snapshot: &EditorSnapshot,
2458 window: &mut Window,
2459 cx: &mut App,
2460 ) -> Option<AnyElement> {
2461 if !snapshot
2462 .show_code_actions
2463 .unwrap_or(EditorSettings::get_global(cx).inline_code_actions)
2464 {
2465 return None;
2466 }
2467
2468 let icon_size = ui::IconSize::XSmall;
2469 let mut button = self.editor.update(cx, |editor, cx| {
2470 editor.available_code_actions.as_ref()?;
2471 let active = editor
2472 .context_menu
2473 .borrow()
2474 .as_ref()
2475 .and_then(|menu| {
2476 if let crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2477 deployed_from,
2478 ..
2479 }) = menu
2480 {
2481 deployed_from.as_ref()
2482 } else {
2483 None
2484 }
2485 })
2486 .is_some_and(|source| matches!(source, CodeActionSource::Indicator(..)));
2487 Some(editor.render_inline_code_actions(icon_size, display_point.row(), active, cx))
2488 })?;
2489
2490 let buffer_point = display_point.to_point(&snapshot.display_snapshot);
2491
2492 // do not show code action for folded line
2493 if snapshot.is_line_folded(MultiBufferRow(buffer_point.row)) {
2494 return None;
2495 }
2496
2497 // do not show code action for blank line with cursor
2498 let line_indent = snapshot
2499 .display_snapshot
2500 .buffer_snapshot()
2501 .line_indent_for_row(MultiBufferRow(buffer_point.row));
2502 if line_indent.is_line_blank() {
2503 return None;
2504 }
2505
2506 const INLINE_SLOT_CHAR_LIMIT: u32 = 4;
2507 const MAX_ALTERNATE_DISTANCE: u32 = 8;
2508
2509 let excerpt_id = snapshot
2510 .display_snapshot
2511 .buffer_snapshot()
2512 .excerpt_containing(buffer_point..buffer_point)
2513 .map(|excerpt| excerpt.id());
2514
2515 let is_valid_row = |row_candidate: u32| -> bool {
2516 // move to other row if folded row
2517 if snapshot.is_line_folded(MultiBufferRow(row_candidate)) {
2518 return false;
2519 }
2520 if buffer_point.row == row_candidate {
2521 // move to other row if cursor is in slot
2522 if buffer_point.column < INLINE_SLOT_CHAR_LIMIT {
2523 return false;
2524 }
2525 } else {
2526 let candidate_point = MultiBufferPoint {
2527 row: row_candidate,
2528 column: 0,
2529 };
2530 let candidate_excerpt_id = snapshot
2531 .display_snapshot
2532 .buffer_snapshot()
2533 .excerpt_containing(candidate_point..candidate_point)
2534 .map(|excerpt| excerpt.id());
2535 // move to other row if different excerpt
2536 if excerpt_id != candidate_excerpt_id {
2537 return false;
2538 }
2539 }
2540 let line_indent = snapshot
2541 .display_snapshot
2542 .buffer_snapshot()
2543 .line_indent_for_row(MultiBufferRow(row_candidate));
2544 // use this row if it's blank
2545 if line_indent.is_line_blank() {
2546 true
2547 } else {
2548 // use this row if code starts after slot
2549 let indent_size = snapshot
2550 .display_snapshot
2551 .buffer_snapshot()
2552 .indent_size_for_line(MultiBufferRow(row_candidate));
2553 indent_size.len >= INLINE_SLOT_CHAR_LIMIT
2554 }
2555 };
2556
2557 let new_buffer_row = if is_valid_row(buffer_point.row) {
2558 Some(buffer_point.row)
2559 } else {
2560 let max_row = snapshot.display_snapshot.buffer_snapshot().max_point().row;
2561 (1..=MAX_ALTERNATE_DISTANCE).find_map(|offset| {
2562 let row_above = buffer_point.row.saturating_sub(offset);
2563 let row_below = buffer_point.row + offset;
2564 if row_above != buffer_point.row && is_valid_row(row_above) {
2565 Some(row_above)
2566 } else if row_below <= max_row && is_valid_row(row_below) {
2567 Some(row_below)
2568 } else {
2569 None
2570 }
2571 })
2572 }?;
2573
2574 let new_display_row = snapshot
2575 .display_snapshot
2576 .point_to_display_point(
2577 Point {
2578 row: new_buffer_row,
2579 column: buffer_point.column,
2580 },
2581 text::Bias::Left,
2582 )
2583 .row();
2584
2585 let start_y = content_origin.y
2586 + (((new_display_row.as_f64() - scroll_position.y) as f32) * line_height)
2587 + (line_height / 2.0)
2588 - (icon_size.square(window, cx) / 2.);
2589 let start_x = (ScrollPixelOffset::from(content_origin.x) - scroll_pixel_position.x
2590 + ScrollPixelOffset::from(window.rem_size() * 0.1))
2591 .into();
2592
2593 let absolute_offset = gpui::point(start_x, start_y);
2594 button.layout_as_root(gpui::AvailableSpace::min_size(), window, cx);
2595 button.prepaint_as_root(
2596 absolute_offset,
2597 gpui::AvailableSpace::min_size(),
2598 window,
2599 cx,
2600 );
2601 Some(button)
2602 }
2603
2604 fn layout_inline_blame(
2605 &self,
2606 display_row: DisplayRow,
2607 row_info: &RowInfo,
2608 line_layout: &LineWithInvisibles,
2609 crease_trailer: Option<&CreaseTrailerLayout>,
2610 em_width: Pixels,
2611 content_origin: gpui::Point<Pixels>,
2612 scroll_position: gpui::Point<ScrollOffset>,
2613 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2614 line_height: Pixels,
2615 window: &mut Window,
2616 cx: &mut App,
2617 ) -> Option<InlineBlameLayout> {
2618 if !self
2619 .editor
2620 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
2621 {
2622 return None;
2623 }
2624
2625 let editor = self.editor.read(cx);
2626 let blame = editor.blame.clone()?;
2627 let padding = {
2628 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
2629
2630 let mut padding = ProjectSettings::get_global(cx).git.inline_blame.padding as f32;
2631
2632 if let Some(edit_prediction) = editor.active_edit_prediction.as_ref()
2633 && let EditPrediction::Edit {
2634 display_mode: EditDisplayMode::TabAccept,
2635 ..
2636 } = &edit_prediction.completion
2637 {
2638 padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS
2639 }
2640
2641 padding * em_width
2642 };
2643
2644 let (buffer_id, entry) = blame
2645 .update(cx, |blame, cx| {
2646 blame.blame_for_rows(&[*row_info], cx).next()
2647 })
2648 .flatten()?;
2649
2650 let mut element = render_inline_blame_entry(entry.clone(), &self.style, cx)?;
2651
2652 let start_y =
2653 content_origin.y + line_height * ((display_row.as_f64() - scroll_position.y) as f32);
2654
2655 let start_x = {
2656 let line_end = if let Some(crease_trailer) = crease_trailer {
2657 crease_trailer.bounds.right()
2658 } else {
2659 Pixels::from(
2660 ScrollPixelOffset::from(content_origin.x + line_layout.width)
2661 - scroll_pixel_position.x,
2662 )
2663 };
2664
2665 let padded_line_end = line_end + padding;
2666
2667 let min_column_in_pixels = column_pixels(
2668 &self.style,
2669 ProjectSettings::get_global(cx).git.inline_blame.min_column as usize,
2670 window,
2671 );
2672 let min_start = Pixels::from(
2673 ScrollPixelOffset::from(content_origin.x + min_column_in_pixels)
2674 - scroll_pixel_position.x,
2675 );
2676
2677 cmp::max(padded_line_end, min_start)
2678 };
2679
2680 let absolute_offset = point(start_x, start_y);
2681 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2682 let bounds = Bounds::new(absolute_offset, size);
2683
2684 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
2685
2686 Some(InlineBlameLayout {
2687 element,
2688 bounds,
2689 buffer_id,
2690 entry,
2691 })
2692 }
2693
2694 fn layout_blame_popover(
2695 &self,
2696 editor_snapshot: &EditorSnapshot,
2697 text_hitbox: &Hitbox,
2698 line_height: Pixels,
2699 window: &mut Window,
2700 cx: &mut App,
2701 ) {
2702 if !self.editor.read(cx).inline_blame_popover.is_some() {
2703 return;
2704 }
2705
2706 let Some(blame) = self.editor.read(cx).blame.clone() else {
2707 return;
2708 };
2709 let cursor_point = self
2710 .editor
2711 .read(cx)
2712 .selections
2713 .newest::<language::Point>(&editor_snapshot.display_snapshot)
2714 .head();
2715
2716 let Some((buffer, buffer_point, _)) = editor_snapshot
2717 .buffer_snapshot()
2718 .point_to_buffer_point(cursor_point)
2719 else {
2720 return;
2721 };
2722
2723 let row_info = RowInfo {
2724 buffer_id: Some(buffer.remote_id()),
2725 buffer_row: Some(buffer_point.row),
2726 ..Default::default()
2727 };
2728
2729 let Some((buffer_id, blame_entry)) = blame
2730 .update(cx, |blame, cx| blame.blame_for_rows(&[row_info], cx).next())
2731 .flatten()
2732 else {
2733 return;
2734 };
2735
2736 let Some((popover_state, target_point)) = self.editor.read_with(cx, |editor, _| {
2737 editor
2738 .inline_blame_popover
2739 .as_ref()
2740 .map(|state| (state.popover_state.clone(), state.position))
2741 }) else {
2742 return;
2743 };
2744
2745 let workspace = self
2746 .editor
2747 .read_with(cx, |editor, _| editor.workspace().map(|w| w.downgrade()));
2748
2749 let maybe_element = workspace.and_then(|workspace| {
2750 render_blame_entry_popover(
2751 blame_entry,
2752 popover_state.scroll_handle,
2753 popover_state.commit_message,
2754 popover_state.markdown,
2755 workspace,
2756 &blame,
2757 buffer_id,
2758 window,
2759 cx,
2760 )
2761 });
2762
2763 if let Some(mut element) = maybe_element {
2764 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2765 let overall_height = size.height + HOVER_POPOVER_GAP;
2766 let popover_origin = if target_point.y > overall_height {
2767 point(target_point.x, target_point.y - size.height)
2768 } else {
2769 point(
2770 target_point.x,
2771 target_point.y + line_height + HOVER_POPOVER_GAP,
2772 )
2773 };
2774
2775 let horizontal_offset = (text_hitbox.top_right().x
2776 - POPOVER_RIGHT_OFFSET
2777 - (popover_origin.x + size.width))
2778 .min(Pixels::ZERO);
2779
2780 let origin = point(popover_origin.x + horizontal_offset, popover_origin.y);
2781 let popover_bounds = Bounds::new(origin, size);
2782
2783 self.editor.update(cx, |editor, _| {
2784 if let Some(state) = &mut editor.inline_blame_popover {
2785 state.popover_bounds = Some(popover_bounds);
2786 }
2787 });
2788
2789 window.defer_draw(element, origin, 2);
2790 }
2791 }
2792
2793 fn layout_blame_entries(
2794 &self,
2795 buffer_rows: &[RowInfo],
2796 em_width: Pixels,
2797 scroll_position: gpui::Point<ScrollOffset>,
2798 line_height: Pixels,
2799 gutter_hitbox: &Hitbox,
2800 max_width: Option<Pixels>,
2801 window: &mut Window,
2802 cx: &mut App,
2803 ) -> Option<Vec<AnyElement>> {
2804 if !self
2805 .editor
2806 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
2807 {
2808 return None;
2809 }
2810
2811 let blame = self.editor.read(cx).blame.clone()?;
2812 let workspace = self.editor.read(cx).workspace()?;
2813 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
2814 blame.blame_for_rows(buffer_rows, cx).collect()
2815 });
2816
2817 let width = if let Some(max_width) = max_width {
2818 AvailableSpace::Definite(max_width)
2819 } else {
2820 AvailableSpace::MaxContent
2821 };
2822 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
2823 let start_x = em_width;
2824
2825 let mut last_used_color: Option<(Hsla, Oid)> = None;
2826 let blame_renderer = cx.global::<GlobalBlameRenderer>().0.clone();
2827
2828 let shaped_lines = blamed_rows
2829 .into_iter()
2830 .enumerate()
2831 .flat_map(|(ix, blame_entry)| {
2832 let (buffer_id, blame_entry) = blame_entry?;
2833 let mut element = render_blame_entry(
2834 ix,
2835 &blame,
2836 blame_entry,
2837 &self.style,
2838 &mut last_used_color,
2839 self.editor.clone(),
2840 workspace.clone(),
2841 buffer_id,
2842 &*blame_renderer,
2843 window,
2844 cx,
2845 )?;
2846
2847 let start_y = ix as f32 * line_height
2848 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height));
2849 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
2850
2851 element.prepaint_as_root(
2852 absolute_offset,
2853 size(width, AvailableSpace::MinContent),
2854 window,
2855 cx,
2856 );
2857
2858 Some(element)
2859 })
2860 .collect();
2861
2862 Some(shaped_lines)
2863 }
2864
2865 fn layout_indent_guides(
2866 &self,
2867 content_origin: gpui::Point<Pixels>,
2868 text_origin: gpui::Point<Pixels>,
2869 visible_buffer_range: Range<MultiBufferRow>,
2870 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2871 line_height: Pixels,
2872 snapshot: &DisplaySnapshot,
2873 window: &mut Window,
2874 cx: &mut App,
2875 ) -> Option<Vec<IndentGuideLayout>> {
2876 let indent_guides = self.editor.update(cx, |editor, cx| {
2877 editor.indent_guides(visible_buffer_range, snapshot, cx)
2878 })?;
2879
2880 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
2881 editor
2882 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
2883 .unwrap_or_default()
2884 });
2885
2886 Some(
2887 indent_guides
2888 .into_iter()
2889 .enumerate()
2890 .filter_map(|(i, indent_guide)| {
2891 let single_indent_width =
2892 column_pixels(&self.style, indent_guide.tab_size as usize, window);
2893 let total_width = single_indent_width * indent_guide.depth as f32;
2894 let start_x = Pixels::from(
2895 ScrollOffset::from(content_origin.x + total_width)
2896 - scroll_pixel_position.x,
2897 );
2898 if start_x >= text_origin.x {
2899 let (offset_y, length) = Self::calculate_indent_guide_bounds(
2900 indent_guide.start_row..indent_guide.end_row,
2901 line_height,
2902 snapshot,
2903 );
2904
2905 let start_y = Pixels::from(
2906 ScrollOffset::from(content_origin.y) + offset_y
2907 - scroll_pixel_position.y,
2908 );
2909
2910 Some(IndentGuideLayout {
2911 origin: point(start_x, start_y),
2912 length,
2913 single_indent_width,
2914 depth: indent_guide.depth,
2915 active: active_indent_guide_indices.contains(&i),
2916 settings: indent_guide.settings,
2917 })
2918 } else {
2919 None
2920 }
2921 })
2922 .collect(),
2923 )
2924 }
2925
2926 fn layout_wrap_guides(
2927 &self,
2928 em_advance: Pixels,
2929 scroll_position: gpui::Point<f64>,
2930 content_origin: gpui::Point<Pixels>,
2931 scrollbar_layout: Option<&EditorScrollbars>,
2932 vertical_scrollbar_width: Pixels,
2933 hitbox: &Hitbox,
2934 window: &Window,
2935 cx: &App,
2936 ) -> SmallVec<[(Pixels, bool); 2]> {
2937 let scroll_left = scroll_position.x as f32 * em_advance;
2938 let content_origin = content_origin.x;
2939 let horizontal_offset = content_origin - scroll_left;
2940 let vertical_scrollbar_width = scrollbar_layout
2941 .and_then(|layout| layout.visible.then_some(vertical_scrollbar_width))
2942 .unwrap_or_default();
2943
2944 self.editor
2945 .read(cx)
2946 .wrap_guides(cx)
2947 .into_iter()
2948 .flat_map(|(guide, active)| {
2949 let wrap_position = column_pixels(&self.style, guide, window);
2950 let wrap_guide_x = wrap_position + horizontal_offset;
2951 let display_wrap_guide = wrap_guide_x >= content_origin
2952 && wrap_guide_x <= hitbox.bounds.right() - vertical_scrollbar_width;
2953
2954 display_wrap_guide.then_some((wrap_guide_x, active))
2955 })
2956 .collect()
2957 }
2958
2959 fn calculate_indent_guide_bounds(
2960 row_range: Range<MultiBufferRow>,
2961 line_height: Pixels,
2962 snapshot: &DisplaySnapshot,
2963 ) -> (f64, gpui::Pixels) {
2964 let start_point = Point::new(row_range.start.0, 0);
2965 let end_point = Point::new(row_range.end.0, 0);
2966
2967 let row_range = start_point.to_display_point(snapshot).row()
2968 ..end_point.to_display_point(snapshot).row();
2969
2970 let mut prev_line = start_point;
2971 prev_line.row = prev_line.row.saturating_sub(1);
2972 let prev_line = prev_line.to_display_point(snapshot).row();
2973
2974 let mut cons_line = end_point;
2975 cons_line.row += 1;
2976 let cons_line = cons_line.to_display_point(snapshot).row();
2977
2978 let mut offset_y = row_range.start.as_f64() * f64::from(line_height);
2979 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
2980
2981 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
2982 if row_range.end == cons_line {
2983 length += line_height;
2984 }
2985
2986 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
2987 // we want to extend the indent guide to the start of the block.
2988 let mut block_height = 0;
2989 let mut block_offset = 0;
2990 let mut found_excerpt_header = false;
2991 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
2992 if matches!(
2993 block,
2994 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
2995 ) {
2996 found_excerpt_header = true;
2997 break;
2998 }
2999 block_offset += block.height();
3000 block_height += block.height();
3001 }
3002 if !found_excerpt_header {
3003 offset_y -= block_offset as f64 * f64::from(line_height);
3004 length += block_height as f32 * line_height;
3005 }
3006
3007 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
3008 // we want to ensure that the indent guide stops before the excerpt header.
3009 let mut block_height = 0;
3010 let mut found_excerpt_header = false;
3011 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
3012 if matches!(
3013 block,
3014 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
3015 ) {
3016 found_excerpt_header = true;
3017 }
3018 block_height += block.height();
3019 }
3020 if found_excerpt_header {
3021 length -= block_height as f32 * line_height;
3022 }
3023
3024 (offset_y, length)
3025 }
3026
3027 fn layout_breakpoints(
3028 &self,
3029 line_height: Pixels,
3030 range: Range<DisplayRow>,
3031 scroll_position: gpui::Point<ScrollOffset>,
3032 gutter_dimensions: &GutterDimensions,
3033 gutter_hitbox: &Hitbox,
3034 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
3035 snapshot: &EditorSnapshot,
3036 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
3037 row_infos: &[RowInfo],
3038 window: &mut Window,
3039 cx: &mut App,
3040 ) -> Vec<AnyElement> {
3041 self.editor.update(cx, |editor, cx| {
3042 breakpoints
3043 .into_iter()
3044 .filter_map(|(display_row, (text_anchor, bp, state))| {
3045 if row_infos
3046 .get((display_row.0.saturating_sub(range.start.0)) as usize)
3047 .is_some_and(|row_info| {
3048 row_info.expand_info.is_some()
3049 || row_info
3050 .diff_status
3051 .is_some_and(|status| status.is_deleted())
3052 })
3053 {
3054 return None;
3055 }
3056
3057 if range.start > display_row || range.end < display_row {
3058 return None;
3059 }
3060
3061 let row =
3062 MultiBufferRow(DisplayPoint::new(display_row, 0).to_point(snapshot).row);
3063 if snapshot.is_line_folded(row) {
3064 return None;
3065 }
3066
3067 let button = editor.render_breakpoint(text_anchor, display_row, &bp, state, cx);
3068
3069 let button = prepaint_gutter_button(
3070 button.into_any_element(),
3071 display_row,
3072 line_height,
3073 gutter_dimensions,
3074 scroll_position,
3075 gutter_hitbox,
3076 display_hunks,
3077 window,
3078 cx,
3079 );
3080 Some(button)
3081 })
3082 .collect_vec()
3083 })
3084 }
3085
3086 fn should_render_diff_review_button(
3087 &self,
3088 range: Range<DisplayRow>,
3089 row_infos: &[RowInfo],
3090 cx: &App,
3091 ) -> Option<DisplayRow> {
3092 if !cx.has_flag::<DiffReviewFeatureFlag>() {
3093 return None;
3094 }
3095
3096 let show_diff_review_button = self.editor.read(cx).show_diff_review_button();
3097 if !show_diff_review_button {
3098 return None;
3099 }
3100
3101 let indicator = self.editor.read(cx).gutter_diff_review_indicator.0?;
3102 if !indicator.is_active {
3103 return None;
3104 }
3105
3106 let display_row = indicator.display_row;
3107
3108 // Don't show on rows with expand excerpt buttons
3109 if row_infos
3110 .get((display_row.0.saturating_sub(range.start.0)) as usize)
3111 .is_some_and(|row_info| row_info.expand_info.is_some())
3112 {
3113 return None;
3114 }
3115
3116 Some(display_row)
3117 }
3118
3119 fn diff_review_button() -> AnyElement {
3120 IconButton::new("diff_review_button", ui::IconName::Plus)
3121 .icon_size(ui::IconSize::XSmall)
3122 .size(ui::ButtonSize::None)
3123 .icon_color(ui::Color::Default)
3124 .style(ui::ButtonStyle::Filled)
3125 .layer(ui::ElevationIndex::Surface)
3126 .tooltip(Tooltip::text("Add Review"))
3127 .into_any_element()
3128 }
3129
3130 #[allow(clippy::too_many_arguments)]
3131 fn layout_run_indicators(
3132 &self,
3133 line_height: Pixels,
3134 range: Range<DisplayRow>,
3135 row_infos: &[RowInfo],
3136 scroll_position: gpui::Point<ScrollOffset>,
3137 gutter_dimensions: &GutterDimensions,
3138 gutter_hitbox: &Hitbox,
3139 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
3140 snapshot: &EditorSnapshot,
3141 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
3142 window: &mut Window,
3143 cx: &mut App,
3144 ) -> Vec<AnyElement> {
3145 self.editor.update(cx, |editor, cx| {
3146 let active_task_indicator_row =
3147 // TODO: add edit button on the right side of each row in the context menu
3148 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
3149 deployed_from,
3150 actions,
3151 ..
3152 })) = editor.context_menu.borrow().as_ref()
3153 {
3154 actions
3155 .tasks()
3156 .map(|tasks| tasks.position.to_display_point(snapshot).row())
3157 .or_else(|| match deployed_from {
3158 Some(CodeActionSource::Indicator(row)) => Some(*row),
3159 _ => None,
3160 })
3161 } else {
3162 None
3163 };
3164
3165 let offset_range_start =
3166 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
3167
3168 let offset_range_end =
3169 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
3170
3171 editor
3172 .tasks
3173 .iter()
3174 .filter_map(|(_, tasks)| {
3175 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot());
3176 if multibuffer_point < offset_range_start
3177 || multibuffer_point > offset_range_end
3178 {
3179 return None;
3180 }
3181 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
3182 let buffer_folded = snapshot
3183 .buffer_snapshot()
3184 .buffer_line_for_row(multibuffer_row)
3185 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
3186 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
3187 .unwrap_or(false);
3188 if buffer_folded {
3189 return None;
3190 }
3191
3192 if snapshot.is_line_folded(multibuffer_row) {
3193 // Skip folded indicators, unless it's the starting line of a fold.
3194 if multibuffer_row
3195 .0
3196 .checked_sub(1)
3197 .is_some_and(|previous_row| {
3198 snapshot.is_line_folded(MultiBufferRow(previous_row))
3199 })
3200 {
3201 return None;
3202 }
3203 }
3204
3205 let display_row = multibuffer_point.to_display_point(snapshot).row();
3206 if !range.contains(&display_row) {
3207 return None;
3208 }
3209 if row_infos
3210 .get((display_row - range.start).0 as usize)
3211 .is_some_and(|row_info| row_info.expand_info.is_some())
3212 {
3213 return None;
3214 }
3215
3216 let removed_breakpoint = breakpoints.remove(&display_row);
3217 let button = editor.render_run_indicator(
3218 &self.style,
3219 Some(display_row) == active_task_indicator_row,
3220 display_row,
3221 removed_breakpoint,
3222 cx,
3223 );
3224
3225 let button = prepaint_gutter_button(
3226 button.into_any_element(),
3227 display_row,
3228 line_height,
3229 gutter_dimensions,
3230 scroll_position,
3231 gutter_hitbox,
3232 display_hunks,
3233 window,
3234 cx,
3235 );
3236 Some(button)
3237 })
3238 .collect_vec()
3239 })
3240 }
3241
3242 fn layout_expand_toggles(
3243 &self,
3244 gutter_hitbox: &Hitbox,
3245 gutter_dimensions: GutterDimensions,
3246 em_width: Pixels,
3247 line_height: Pixels,
3248 scroll_position: gpui::Point<ScrollOffset>,
3249 buffer_rows: &[RowInfo],
3250 window: &mut Window,
3251 cx: &mut App,
3252 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
3253 if self.editor.read(cx).disable_expand_excerpt_buttons {
3254 return vec![];
3255 }
3256
3257 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
3258
3259 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
3260
3261 let max_line_number_length = self
3262 .editor
3263 .read(cx)
3264 .buffer()
3265 .read(cx)
3266 .snapshot(cx)
3267 .widest_line_number()
3268 .ilog10()
3269 + 1;
3270
3271 let git_gutter_width = Self::gutter_strip_width(line_height)
3272 + gutter_dimensions
3273 .git_blame_entries_width
3274 .unwrap_or_default();
3275 let available_width = gutter_dimensions.left_padding - git_gutter_width;
3276
3277 buffer_rows
3278 .iter()
3279 .enumerate()
3280 .map(|(ix, row_info)| {
3281 let ExpandInfo {
3282 excerpt_id,
3283 direction,
3284 } = row_info.expand_info?;
3285
3286 let icon_name = match direction {
3287 ExpandExcerptDirection::Up => IconName::ExpandUp,
3288 ExpandExcerptDirection::Down => IconName::ExpandDown,
3289 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
3290 };
3291
3292 let editor = self.editor.clone();
3293 let is_wide = max_line_number_length
3294 >= EditorSettings::get_global(cx).gutter.min_line_number_digits as u32
3295 && row_info
3296 .buffer_row
3297 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
3298 || gutter_dimensions.right_padding == px(0.);
3299
3300 let width = if is_wide {
3301 available_width - px(2.)
3302 } else {
3303 available_width + em_width - px(2.)
3304 };
3305
3306 let toggle = IconButton::new(("expand", ix), icon_name)
3307 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
3308 .selected_icon_color(Color::Custom(cx.theme().colors().editor_foreground))
3309 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
3310 .width(width)
3311 .on_click(move |_, window, cx| {
3312 editor.update(cx, |editor, cx| {
3313 editor.expand_excerpt(excerpt_id, direction, window, cx);
3314 });
3315 })
3316 .tooltip(Tooltip::for_action_title(
3317 "Expand Excerpt",
3318 &crate::actions::ExpandExcerpts::default(),
3319 ))
3320 .into_any_element();
3321
3322 let position = point(
3323 git_gutter_width + px(1.),
3324 ix as f32 * line_height
3325 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height))
3326 + px(1.),
3327 );
3328 let origin = gutter_hitbox.origin + position;
3329
3330 Some((toggle, origin))
3331 })
3332 .collect()
3333 }
3334
3335 fn layout_line_numbers(
3336 &self,
3337 gutter_hitbox: Option<&Hitbox>,
3338 gutter_dimensions: GutterDimensions,
3339 line_height: Pixels,
3340 scroll_position: gpui::Point<ScrollOffset>,
3341 rows: Range<DisplayRow>,
3342 buffer_rows: &[RowInfo],
3343 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3344 current_selection_head: Option<DisplayRow>,
3345 snapshot: &EditorSnapshot,
3346 window: &mut Window,
3347 cx: &mut App,
3348 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
3349 let include_line_numbers = snapshot
3350 .show_line_numbers
3351 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
3352 if !include_line_numbers {
3353 return Arc::default();
3354 }
3355
3356 let relative = self.editor.read(cx).relative_line_numbers(cx);
3357
3358 let relative_line_numbers_enabled = relative.enabled();
3359 let relative_rows = if relative_line_numbers_enabled
3360 && let Some(current_selection_head) = current_selection_head
3361 {
3362 snapshot.calculate_relative_line_numbers(
3363 &rows,
3364 current_selection_head,
3365 relative.wrapped(),
3366 )
3367 } else {
3368 Default::default()
3369 };
3370
3371 let mut line_number = String::new();
3372 let segments = buffer_rows.iter().enumerate().flat_map(|(ix, row_info)| {
3373 let display_row = DisplayRow(rows.start.0 + ix as u32);
3374 line_number.clear();
3375 let non_relative_number = if relative.wrapped() {
3376 row_info.buffer_row.or(row_info.wrapped_buffer_row)? + 1
3377 } else {
3378 row_info.buffer_row? + 1
3379 };
3380 let relative_number = relative_rows.get(&display_row);
3381 if !(relative_line_numbers_enabled && relative_number.is_some())
3382 && !snapshot.number_deleted_lines
3383 && row_info
3384 .diff_status
3385 .is_some_and(|status| status.is_deleted())
3386 {
3387 return None;
3388 }
3389
3390 let number = relative_number.unwrap_or(&non_relative_number);
3391 write!(&mut line_number, "{number}").unwrap();
3392
3393 let color = active_rows
3394 .get(&display_row)
3395 .map(|spec| {
3396 if spec.breakpoint {
3397 cx.theme().colors().debugger_accent
3398 } else {
3399 cx.theme().colors().editor_active_line_number
3400 }
3401 })
3402 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
3403 let shaped_line =
3404 self.shape_line_number(SharedString::from(&line_number), color, window);
3405 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
3406 let line_origin = gutter_hitbox.map(|hitbox| {
3407 hitbox.origin
3408 + point(
3409 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
3410 ix as f32 * line_height
3411 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height)),
3412 )
3413 });
3414
3415 #[cfg(not(test))]
3416 let hitbox = line_origin.map(|line_origin| {
3417 window.insert_hitbox(
3418 Bounds::new(line_origin, size(shaped_line.width, line_height)),
3419 HitboxBehavior::Normal,
3420 )
3421 });
3422 #[cfg(test)]
3423 let hitbox = {
3424 let _ = line_origin;
3425 None
3426 };
3427
3428 let segment = LineNumberSegment {
3429 shaped_line,
3430 hitbox,
3431 };
3432
3433 let buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
3434 let multi_buffer_row = MultiBufferRow(buffer_row);
3435
3436 Some((multi_buffer_row, segment))
3437 });
3438
3439 let mut line_numbers: HashMap<MultiBufferRow, LineNumberLayout> = HashMap::default();
3440 for (buffer_row, segment) in segments {
3441 line_numbers
3442 .entry(buffer_row)
3443 .or_insert_with(|| LineNumberLayout {
3444 segments: Default::default(),
3445 })
3446 .segments
3447 .push(segment);
3448 }
3449 Arc::new(line_numbers)
3450 }
3451
3452 fn layout_crease_toggles(
3453 &self,
3454 rows: Range<DisplayRow>,
3455 row_infos: &[RowInfo],
3456 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3457 snapshot: &EditorSnapshot,
3458 window: &mut Window,
3459 cx: &mut App,
3460 ) -> Vec<Option<AnyElement>> {
3461 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
3462 && snapshot.mode.is_full()
3463 && self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
3464 if include_fold_statuses {
3465 row_infos
3466 .iter()
3467 .enumerate()
3468 .map(|(ix, info)| {
3469 if info.expand_info.is_some() {
3470 return None;
3471 }
3472 let row = info.multibuffer_row?;
3473 let display_row = DisplayRow(rows.start.0 + ix as u32);
3474 let active = active_rows.contains_key(&display_row);
3475
3476 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
3477 })
3478 .collect()
3479 } else {
3480 Vec::new()
3481 }
3482 }
3483
3484 fn layout_crease_trailers(
3485 &self,
3486 buffer_rows: impl IntoIterator<Item = RowInfo>,
3487 snapshot: &EditorSnapshot,
3488 window: &mut Window,
3489 cx: &mut App,
3490 ) -> Vec<Option<AnyElement>> {
3491 buffer_rows
3492 .into_iter()
3493 .map(|row_info| {
3494 if row_info.expand_info.is_some() {
3495 return None;
3496 }
3497 if let Some(row) = row_info.multibuffer_row {
3498 snapshot.render_crease_trailer(row, window, cx)
3499 } else {
3500 None
3501 }
3502 })
3503 .collect()
3504 }
3505
3506 fn bg_segments_per_row(
3507 rows: Range<DisplayRow>,
3508 selections: &[(PlayerColor, Vec<SelectionLayout>)],
3509 highlight_ranges: &[(Range<DisplayPoint>, Hsla)],
3510 base_background: Hsla,
3511 ) -> Vec<Vec<(Range<DisplayPoint>, Hsla)>> {
3512 if rows.start >= rows.end {
3513 return Vec::new();
3514 }
3515 if !base_background.is_opaque() {
3516 // We don't actually know what color is behind this editor.
3517 return Vec::new();
3518 }
3519 let highlight_iter = highlight_ranges.iter().cloned();
3520 let selection_iter = selections.iter().flat_map(|(player_color, layouts)| {
3521 let color = player_color.selection;
3522 layouts.iter().filter_map(move |selection_layout| {
3523 if selection_layout.range.start != selection_layout.range.end {
3524 Some((selection_layout.range.clone(), color))
3525 } else {
3526 None
3527 }
3528 })
3529 });
3530 let mut per_row_map = vec![Vec::new(); rows.len()];
3531 for (range, color) in highlight_iter.chain(selection_iter) {
3532 let covered_rows = if range.end.column() == 0 {
3533 cmp::max(range.start.row(), rows.start)..cmp::min(range.end.row(), rows.end)
3534 } else {
3535 cmp::max(range.start.row(), rows.start)
3536 ..cmp::min(range.end.row().next_row(), rows.end)
3537 };
3538 for row in covered_rows.iter_rows() {
3539 let seg_start = if row == range.start.row() {
3540 range.start
3541 } else {
3542 DisplayPoint::new(row, 0)
3543 };
3544 let seg_end = if row == range.end.row() && range.end.column() != 0 {
3545 range.end
3546 } else {
3547 DisplayPoint::new(row, u32::MAX)
3548 };
3549 let ix = row.minus(rows.start) as usize;
3550 debug_assert!(row >= rows.start && row < rows.end);
3551 debug_assert!(ix < per_row_map.len());
3552 per_row_map[ix].push((seg_start..seg_end, color));
3553 }
3554 }
3555 for row_segments in per_row_map.iter_mut() {
3556 if row_segments.is_empty() {
3557 continue;
3558 }
3559 let segments = mem::take(row_segments);
3560 let merged = Self::merge_overlapping_ranges(segments, base_background);
3561 *row_segments = merged;
3562 }
3563 per_row_map
3564 }
3565
3566 /// Merge overlapping ranges by splitting at all range boundaries and blending colors where
3567 /// multiple ranges overlap. The result contains non-overlapping ranges ordered from left to right.
3568 ///
3569 /// Expects `start.row() == end.row()` for each range.
3570 fn merge_overlapping_ranges(
3571 ranges: Vec<(Range<DisplayPoint>, Hsla)>,
3572 base_background: Hsla,
3573 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
3574 struct Boundary {
3575 pos: DisplayPoint,
3576 is_start: bool,
3577 index: usize,
3578 color: Hsla,
3579 }
3580
3581 let mut boundaries: SmallVec<[Boundary; 16]> = SmallVec::with_capacity(ranges.len() * 2);
3582 for (index, (range, color)) in ranges.iter().enumerate() {
3583 debug_assert!(
3584 range.start.row() == range.end.row(),
3585 "expects single-row ranges"
3586 );
3587 if range.start < range.end {
3588 boundaries.push(Boundary {
3589 pos: range.start,
3590 is_start: true,
3591 index,
3592 color: *color,
3593 });
3594 boundaries.push(Boundary {
3595 pos: range.end,
3596 is_start: false,
3597 index,
3598 color: *color,
3599 });
3600 }
3601 }
3602
3603 if boundaries.is_empty() {
3604 return Vec::new();
3605 }
3606
3607 boundaries
3608 .sort_unstable_by(|a, b| a.pos.cmp(&b.pos).then_with(|| a.is_start.cmp(&b.is_start)));
3609
3610 let mut processed_ranges: Vec<(Range<DisplayPoint>, Hsla)> = Vec::new();
3611 let mut active_ranges: SmallVec<[(usize, Hsla); 8]> = SmallVec::new();
3612
3613 let mut i = 0;
3614 let mut start_pos = boundaries[0].pos;
3615
3616 let boundaries_len = boundaries.len();
3617 while i < boundaries_len {
3618 let current_boundary_pos = boundaries[i].pos;
3619 if start_pos < current_boundary_pos {
3620 if !active_ranges.is_empty() {
3621 let mut color = base_background;
3622 for &(_, c) in &active_ranges {
3623 color = Hsla::blend(color, c);
3624 }
3625 if let Some((last_range, last_color)) = processed_ranges.last_mut() {
3626 if *last_color == color && last_range.end == start_pos {
3627 last_range.end = current_boundary_pos;
3628 } else {
3629 processed_ranges.push((start_pos..current_boundary_pos, color));
3630 }
3631 } else {
3632 processed_ranges.push((start_pos..current_boundary_pos, color));
3633 }
3634 }
3635 }
3636 while i < boundaries_len && boundaries[i].pos == current_boundary_pos {
3637 let active_range = &boundaries[i];
3638 if active_range.is_start {
3639 let idx = active_range.index;
3640 let pos = active_ranges
3641 .binary_search_by_key(&idx, |(i, _)| *i)
3642 .unwrap_or_else(|p| p);
3643 active_ranges.insert(pos, (idx, active_range.color));
3644 } else {
3645 let idx = active_range.index;
3646 if let Ok(pos) = active_ranges.binary_search_by_key(&idx, |(i, _)| *i) {
3647 active_ranges.remove(pos);
3648 }
3649 }
3650 i += 1;
3651 }
3652 start_pos = current_boundary_pos;
3653 }
3654
3655 processed_ranges
3656 }
3657
3658 fn layout_lines(
3659 rows: Range<DisplayRow>,
3660 snapshot: &EditorSnapshot,
3661 style: &EditorStyle,
3662 editor_width: Pixels,
3663 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3664 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
3665 window: &mut Window,
3666 cx: &mut App,
3667 ) -> Vec<LineWithInvisibles> {
3668 if rows.start >= rows.end {
3669 return Vec::new();
3670 }
3671
3672 // Show the placeholder when the editor is empty
3673 if snapshot.is_empty() {
3674 let font_size = style.text.font_size.to_pixels(window.rem_size());
3675 let placeholder_color = cx.theme().colors().text_placeholder;
3676 let placeholder_text = snapshot.placeholder_text();
3677
3678 let placeholder_lines = placeholder_text
3679 .as_ref()
3680 .map_or(Vec::new(), |text| text.split('\n').collect::<Vec<_>>());
3681
3682 let placeholder_line_count = placeholder_lines.len();
3683
3684 placeholder_lines
3685 .into_iter()
3686 .skip(rows.start.0 as usize)
3687 .chain(iter::repeat(""))
3688 .take(cmp::max(rows.len(), placeholder_line_count))
3689 .map(move |line| {
3690 let run = TextRun {
3691 len: line.len(),
3692 font: style.text.font(),
3693 color: placeholder_color,
3694 ..Default::default()
3695 };
3696 let line = window.text_system().shape_line(
3697 line.to_string().into(),
3698 font_size,
3699 &[run],
3700 None,
3701 );
3702 LineWithInvisibles {
3703 width: line.width,
3704 len: line.len,
3705 fragments: smallvec![LineFragment::Text(line)],
3706 invisibles: Vec::new(),
3707 font_size,
3708 }
3709 })
3710 .collect()
3711 } else {
3712 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
3713 LineWithInvisibles::from_chunks(
3714 chunks,
3715 style,
3716 MAX_LINE_LEN,
3717 rows.len(),
3718 &snapshot.mode,
3719 editor_width,
3720 is_row_soft_wrapped,
3721 bg_segments_per_row,
3722 window,
3723 cx,
3724 )
3725 }
3726 }
3727
3728 fn prepaint_lines(
3729 &self,
3730 start_row: DisplayRow,
3731 line_layouts: &mut [LineWithInvisibles],
3732 line_height: Pixels,
3733 scroll_position: gpui::Point<ScrollOffset>,
3734 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
3735 content_origin: gpui::Point<Pixels>,
3736 window: &mut Window,
3737 cx: &mut App,
3738 ) -> SmallVec<[AnyElement; 1]> {
3739 let mut line_elements = SmallVec::new();
3740 for (ix, line) in line_layouts.iter_mut().enumerate() {
3741 let row = start_row + DisplayRow(ix as u32);
3742 line.prepaint(
3743 line_height,
3744 scroll_position,
3745 scroll_pixel_position,
3746 row,
3747 content_origin,
3748 &mut line_elements,
3749 window,
3750 cx,
3751 );
3752 }
3753 line_elements
3754 }
3755
3756 fn render_block(
3757 &self,
3758 block: &Block,
3759 available_width: AvailableSpace,
3760 block_id: BlockId,
3761 block_row_start: DisplayRow,
3762 snapshot: &EditorSnapshot,
3763 text_x: Pixels,
3764 rows: &Range<DisplayRow>,
3765 line_layouts: &[LineWithInvisibles],
3766 editor_margins: &EditorMargins,
3767 line_height: Pixels,
3768 em_width: Pixels,
3769 text_hitbox: &Hitbox,
3770 editor_width: Pixels,
3771 scroll_width: &mut Pixels,
3772 resized_blocks: &mut HashMap<CustomBlockId, u32>,
3773 row_block_types: &mut HashMap<DisplayRow, bool>,
3774 selections: &[Selection<Point>],
3775 selected_buffer_ids: &Vec<BufferId>,
3776 latest_selection_anchors: &HashMap<BufferId, Anchor>,
3777 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3778 sticky_header_excerpt_id: Option<ExcerptId>,
3779 block_resize_offset: &mut i32,
3780 window: &mut Window,
3781 cx: &mut App,
3782 ) -> Option<(AnyElement, Size<Pixels>, DisplayRow, Pixels)> {
3783 let mut x_position = None;
3784 let mut element = match block {
3785 Block::Custom(custom) => {
3786 let block_start = custom.start().to_point(&snapshot.buffer_snapshot());
3787 let block_end = custom.end().to_point(&snapshot.buffer_snapshot());
3788 if block.place_near() && snapshot.is_line_folded(MultiBufferRow(block_start.row)) {
3789 return None;
3790 }
3791 let align_to = block_start.to_display_point(snapshot);
3792 let x_and_width = |layout: &LineWithInvisibles| {
3793 Some((
3794 text_x + layout.x_for_index(align_to.column() as usize),
3795 text_x + layout.width,
3796 ))
3797 };
3798 let line_ix = align_to.row().0.checked_sub(rows.start.0);
3799 x_position =
3800 if let Some(layout) = line_ix.and_then(|ix| line_layouts.get(ix as usize)) {
3801 x_and_width(layout)
3802 } else {
3803 x_and_width(&layout_line(
3804 align_to.row(),
3805 snapshot,
3806 &self.style,
3807 editor_width,
3808 is_row_soft_wrapped,
3809 window,
3810 cx,
3811 ))
3812 };
3813
3814 let anchor_x = x_position.unwrap().0;
3815
3816 let selected = selections
3817 .binary_search_by(|selection| {
3818 if selection.end <= block_start {
3819 Ordering::Less
3820 } else if selection.start >= block_end {
3821 Ordering::Greater
3822 } else {
3823 Ordering::Equal
3824 }
3825 })
3826 .is_ok();
3827
3828 div()
3829 .size_full()
3830 .child(custom.render(&mut BlockContext {
3831 window,
3832 app: cx,
3833 anchor_x,
3834 margins: editor_margins,
3835 line_height,
3836 em_width,
3837 block_id,
3838 selected,
3839 max_width: text_hitbox.size.width.max(*scroll_width),
3840 editor_style: &self.style,
3841 }))
3842 .into_any()
3843 }
3844
3845 Block::FoldedBuffer {
3846 first_excerpt,
3847 height,
3848 ..
3849 } => {
3850 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
3851 let result = v_flex().id(block_id).w_full().pr(editor_margins.right);
3852
3853 let jump_data = header_jump_data(
3854 snapshot,
3855 block_row_start,
3856 *height,
3857 first_excerpt,
3858 latest_selection_anchors,
3859 );
3860 result
3861 .child(self.render_buffer_header(
3862 first_excerpt,
3863 true,
3864 selected,
3865 false,
3866 jump_data,
3867 window,
3868 cx,
3869 ))
3870 .into_any_element()
3871 }
3872
3873 Block::ExcerptBoundary { .. } => {
3874 let color = cx.theme().colors().clone();
3875 let mut result = v_flex().id(block_id).w_full();
3876
3877 result = result.child(
3878 h_flex().relative().child(
3879 div()
3880 .top(line_height / 2.)
3881 .absolute()
3882 .w_full()
3883 .h_px()
3884 .bg(color.border_variant),
3885 ),
3886 );
3887
3888 result.into_any()
3889 }
3890
3891 Block::BufferHeader { excerpt, height } => {
3892 let mut result = v_flex().id(block_id).w_full();
3893
3894 let jump_data = header_jump_data(
3895 snapshot,
3896 block_row_start,
3897 *height,
3898 excerpt,
3899 latest_selection_anchors,
3900 );
3901
3902 if sticky_header_excerpt_id != Some(excerpt.id) {
3903 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3904
3905 result = result.child(div().pr(editor_margins.right).child(
3906 self.render_buffer_header(
3907 excerpt, false, selected, false, jump_data, window, cx,
3908 ),
3909 ));
3910 } else {
3911 result =
3912 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
3913 }
3914
3915 result.into_any()
3916 }
3917 };
3918
3919 // Discover the element's content height, then round up to the nearest multiple of line height.
3920 let preliminary_size = element.layout_as_root(
3921 size(available_width, AvailableSpace::MinContent),
3922 window,
3923 cx,
3924 );
3925 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
3926 let final_size = if preliminary_size.height == quantized_height {
3927 preliminary_size
3928 } else {
3929 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
3930 };
3931 let mut element_height_in_lines = ((final_size.height / line_height).ceil() as u32).max(1);
3932
3933 let effective_row_start = block_row_start.0 as i32 + *block_resize_offset;
3934 debug_assert!(effective_row_start >= 0);
3935 let mut row = DisplayRow(effective_row_start.max(0) as u32);
3936
3937 let mut x_offset = px(0.);
3938 let mut is_block = true;
3939
3940 if let BlockId::Custom(custom_block_id) = block_id
3941 && block.has_height()
3942 {
3943 if block.place_near()
3944 && let Some((x_target, line_width)) = x_position
3945 {
3946 let margin = em_width * 2;
3947 if line_width + final_size.width + margin
3948 < editor_width + editor_margins.gutter.full_width()
3949 && !row_block_types.contains_key(&(row - 1))
3950 && element_height_in_lines == 1
3951 {
3952 x_offset = line_width + margin;
3953 row = row - 1;
3954 is_block = false;
3955 element_height_in_lines = 0;
3956 row_block_types.insert(row, is_block);
3957 } else {
3958 let max_offset =
3959 editor_width + editor_margins.gutter.full_width() - final_size.width;
3960 let min_offset = (x_target + em_width - final_size.width)
3961 .max(editor_margins.gutter.full_width());
3962 x_offset = x_target.min(max_offset).max(min_offset);
3963 }
3964 };
3965 if element_height_in_lines != block.height() {
3966 *block_resize_offset += element_height_in_lines as i32 - block.height() as i32;
3967 resized_blocks.insert(custom_block_id, element_height_in_lines);
3968 }
3969 }
3970 for i in 0..element_height_in_lines {
3971 row_block_types.insert(row + i, is_block);
3972 }
3973
3974 Some((element, final_size, row, x_offset))
3975 }
3976
3977 fn render_buffer_header(
3978 &self,
3979 for_excerpt: &ExcerptInfo,
3980 is_folded: bool,
3981 is_selected: bool,
3982 is_sticky: bool,
3983 jump_data: JumpData,
3984 window: &mut Window,
3985 cx: &mut App,
3986 ) -> impl IntoElement {
3987 let editor = self.editor.read(cx);
3988 let multi_buffer = editor.buffer.read(cx);
3989 let is_read_only = self.editor.read(cx).read_only(cx);
3990 let editor_handle: &dyn ItemHandle = &self.editor;
3991
3992 let breadcrumbs = if is_selected {
3993 editor.breadcrumbs_inner(cx.theme(), cx)
3994 } else {
3995 None
3996 };
3997
3998 let file_status = multi_buffer
3999 .all_diff_hunks_expanded()
4000 .then(|| editor.status_for_buffer_id(for_excerpt.buffer_id, cx))
4001 .flatten();
4002 let indicator = multi_buffer
4003 .buffer(for_excerpt.buffer_id)
4004 .and_then(|buffer| {
4005 let buffer = buffer.read(cx);
4006 let indicator_color = match (buffer.has_conflict(), buffer.is_dirty()) {
4007 (true, _) => Some(Color::Warning),
4008 (_, true) => Some(Color::Accent),
4009 (false, false) => None,
4010 };
4011 indicator_color.map(|indicator_color| Indicator::dot().color(indicator_color))
4012 });
4013
4014 let include_root = editor
4015 .project
4016 .as_ref()
4017 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
4018 .unwrap_or_default();
4019 let file = for_excerpt.buffer.file();
4020 let can_open_excerpts = file.is_none_or(|file| file.can_open());
4021 let path_style = file.map(|file| file.path_style(cx));
4022 let relative_path = for_excerpt.buffer.resolve_file_path(include_root, cx);
4023 let (parent_path, filename) = if let Some(path) = &relative_path {
4024 if let Some(path_style) = path_style {
4025 let (dir, file_name) = path_style.split(path);
4026 (dir.map(|dir| dir.to_owned()), Some(file_name.to_owned()))
4027 } else {
4028 (None, Some(path.clone()))
4029 }
4030 } else {
4031 (None, None)
4032 };
4033 let focus_handle = editor.focus_handle(cx);
4034 let colors = cx.theme().colors();
4035
4036 let header = div()
4037 .p_1()
4038 .w_full()
4039 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
4040 .child(
4041 h_flex()
4042 .size_full()
4043 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
4044 .pl_1()
4045 .pr_2()
4046 .rounded_sm()
4047 .gap_1p5()
4048 .when(is_sticky, |el| el.shadow_md())
4049 .border_1()
4050 .map(|border| {
4051 let border_color = if is_selected
4052 && is_folded
4053 && focus_handle.contains_focused(window, cx)
4054 {
4055 colors.border_focused
4056 } else {
4057 colors.border
4058 };
4059 border.border_color(border_color)
4060 })
4061 .bg(colors.editor_subheader_background)
4062 .hover(|style| style.bg(colors.element_hover))
4063 .map(|header| {
4064 let editor = self.editor.clone();
4065 let buffer_id = for_excerpt.buffer_id;
4066 let toggle_chevron_icon =
4067 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
4068 let button_size = rems_from_px(28.);
4069
4070 header.child(
4071 div()
4072 .hover(|style| style.bg(colors.element_selected))
4073 .rounded_xs()
4074 .child(
4075 ButtonLike::new("toggle-buffer-fold")
4076 .style(ButtonStyle::Transparent)
4077 .height(button_size.into())
4078 .width(button_size)
4079 .children(toggle_chevron_icon)
4080 .tooltip({
4081 let focus_handle = focus_handle.clone();
4082 let is_folded_for_tooltip = is_folded;
4083 move |_window, cx| {
4084 Tooltip::with_meta_in(
4085 if is_folded_for_tooltip {
4086 "Unfold Excerpt"
4087 } else {
4088 "Fold Excerpt"
4089 },
4090 Some(&ToggleFold),
4091 format!(
4092 "{} to toggle all",
4093 text_for_keystroke(
4094 &Modifiers::alt(),
4095 "click",
4096 cx
4097 )
4098 ),
4099 &focus_handle,
4100 cx,
4101 )
4102 }
4103 })
4104 .on_click(move |event, window, cx| {
4105 if event.modifiers().alt {
4106 // Alt+click toggles all buffers
4107 editor.update(cx, |editor, cx| {
4108 editor.toggle_fold_all(
4109 &ToggleFoldAll,
4110 window,
4111 cx,
4112 );
4113 });
4114 } else {
4115 // Regular click toggles single buffer
4116 if is_folded {
4117 editor.update(cx, |editor, cx| {
4118 editor.unfold_buffer(buffer_id, cx);
4119 });
4120 } else {
4121 editor.update(cx, |editor, cx| {
4122 editor.fold_buffer(buffer_id, cx);
4123 });
4124 }
4125 }
4126 }),
4127 ),
4128 )
4129 })
4130 .children(
4131 editor
4132 .addons
4133 .values()
4134 .filter_map(|addon| {
4135 addon.render_buffer_header_controls(for_excerpt, window, cx)
4136 })
4137 .take(1),
4138 )
4139 .when(!is_read_only, |this| {
4140 this.child(
4141 h_flex()
4142 .size_3()
4143 .justify_center()
4144 .flex_shrink_0()
4145 .children(indicator),
4146 )
4147 })
4148 .child(
4149 h_flex()
4150 .cursor_pointer()
4151 .id("path_header_block")
4152 .min_w_0()
4153 .size_full()
4154 .gap_1()
4155 .justify_between()
4156 .overflow_hidden()
4157 .child(h_flex().min_w_0().flex_1().gap_0p5().overflow_hidden().map(
4158 |path_header| {
4159 let filename = filename
4160 .map(SharedString::from)
4161 .unwrap_or_else(|| "untitled".into());
4162
4163 let full_path = match parent_path.as_deref() {
4164 Some(parent) if !parent.is_empty() => {
4165 format!("{}{}", parent, filename.as_str())
4166 }
4167 _ => filename.as_str().to_string(),
4168 };
4169
4170 path_header
4171 .child(
4172 ButtonLike::new("filename-button")
4173 .when(
4174 ItemSettings::get_global(cx).file_icons,
4175 |this| {
4176 let path =
4177 path::Path::new(filename.as_str());
4178 let icon = FileIcons::get_icon(path, cx)
4179 .unwrap_or_default();
4180
4181 this.child(
4182 Icon::from_path(icon)
4183 .color(Color::Muted),
4184 )
4185 },
4186 )
4187 .child(
4188 Label::new(filename)
4189 .single_line()
4190 .color(file_status_label_color(file_status))
4191 .buffer_font(cx)
4192 .when(
4193 file_status
4194 .is_some_and(|s| s.is_deleted()),
4195 |label| label.strikethrough(),
4196 ),
4197 )
4198 .tooltip(move |_, cx| {
4199 Tooltip::with_meta(
4200 "Open File",
4201 None,
4202 full_path.clone(),
4203 cx,
4204 )
4205 })
4206 .on_click(window.listener_for(&self.editor, {
4207 let jump_data = jump_data.clone();
4208 move |editor, e: &ClickEvent, window, cx| {
4209 editor.open_excerpts_common(
4210 Some(jump_data.clone()),
4211 e.modifiers().secondary(),
4212 window,
4213 cx,
4214 );
4215 }
4216 })),
4217 )
4218 .when_some(parent_path, |then, path| {
4219 then.child(
4220 Label::new(path)
4221 .buffer_font(cx)
4222 .truncate_start()
4223 .color(
4224 if file_status
4225 .is_some_and(FileStatus::is_deleted)
4226 {
4227 Color::Custom(colors.text_disabled)
4228 } else {
4229 Color::Custom(colors.text_muted)
4230 },
4231 ),
4232 )
4233 })
4234 .when(!for_excerpt.buffer.capability.editable(), |el| {
4235 el.child(
4236 Icon::new(IconName::FileLock).color(Color::Muted),
4237 )
4238 })
4239 .when_some(breadcrumbs, |then, breadcrumbs| {
4240 then.child(render_breadcrumb_text(
4241 breadcrumbs,
4242 None,
4243 editor_handle,
4244 true,
4245 window,
4246 cx,
4247 ))
4248 })
4249 },
4250 ))
4251 .when(
4252 can_open_excerpts && is_selected && relative_path.is_some(),
4253 |el| {
4254 el.child(
4255 Button::new("open-file-button", "Open File")
4256 .style(ButtonStyle::OutlinedGhost)
4257 .key_binding(KeyBinding::for_action_in(
4258 &OpenExcerpts,
4259 &focus_handle,
4260 cx,
4261 ))
4262 .on_click(window.listener_for(&self.editor, {
4263 let jump_data = jump_data.clone();
4264 move |editor, e: &ClickEvent, window, cx| {
4265 editor.open_excerpts_common(
4266 Some(jump_data.clone()),
4267 e.modifiers().secondary(),
4268 window,
4269 cx,
4270 );
4271 }
4272 })),
4273 )
4274 },
4275 )
4276 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
4277 .on_click(window.listener_for(&self.editor, {
4278 let buffer_id = for_excerpt.buffer_id;
4279 move |editor, e: &ClickEvent, window, cx| {
4280 if e.modifiers().alt {
4281 editor.open_excerpts_common(
4282 Some(jump_data.clone()),
4283 e.modifiers().secondary(),
4284 window,
4285 cx,
4286 );
4287 return;
4288 }
4289
4290 if is_folded {
4291 editor.unfold_buffer(buffer_id, cx);
4292 } else {
4293 editor.fold_buffer(buffer_id, cx);
4294 }
4295 }
4296 })),
4297 ),
4298 );
4299
4300 let file = for_excerpt.buffer.file().cloned();
4301 let editor = self.editor.clone();
4302
4303 right_click_menu("buffer-header-context-menu")
4304 .trigger(move |_, _, _| header)
4305 .menu(move |window, cx| {
4306 let menu_context = focus_handle.clone();
4307 let editor = editor.clone();
4308 let file = file.clone();
4309 ContextMenu::build(window, cx, move |mut menu, window, cx| {
4310 if let Some(file) = file
4311 && let Some(project) = editor.read(cx).project()
4312 && let Some(worktree) =
4313 project.read(cx).worktree_for_id(file.worktree_id(cx), cx)
4314 {
4315 let path_style = file.path_style(cx);
4316 let worktree = worktree.read(cx);
4317 let relative_path = file.path();
4318 let entry_for_path = worktree.entry_for_path(relative_path);
4319 let abs_path = entry_for_path.map(|e| {
4320 e.canonical_path.as_deref().map_or_else(
4321 || worktree.absolutize(relative_path),
4322 Path::to_path_buf,
4323 )
4324 });
4325 let has_relative_path = worktree.root_entry().is_some_and(Entry::is_dir);
4326
4327 let parent_abs_path = abs_path
4328 .as_ref()
4329 .and_then(|abs_path| Some(abs_path.parent()?.to_path_buf()));
4330 let relative_path = has_relative_path
4331 .then_some(relative_path)
4332 .map(ToOwned::to_owned);
4333
4334 let visible_in_project_panel =
4335 relative_path.is_some() && worktree.is_visible();
4336 let reveal_in_project_panel = entry_for_path
4337 .filter(|_| visible_in_project_panel)
4338 .map(|entry| entry.id);
4339 menu = menu
4340 .when_some(abs_path, |menu, abs_path| {
4341 menu.entry(
4342 "Copy Path",
4343 Some(Box::new(zed_actions::workspace::CopyPath)),
4344 window.handler_for(&editor, move |_, _, cx| {
4345 cx.write_to_clipboard(ClipboardItem::new_string(
4346 abs_path.to_string_lossy().into_owned(),
4347 ));
4348 }),
4349 )
4350 })
4351 .when_some(relative_path, |menu, relative_path| {
4352 menu.entry(
4353 "Copy Relative Path",
4354 Some(Box::new(zed_actions::workspace::CopyRelativePath)),
4355 window.handler_for(&editor, move |_, _, cx| {
4356 cx.write_to_clipboard(ClipboardItem::new_string(
4357 relative_path.display(path_style).to_string(),
4358 ));
4359 }),
4360 )
4361 })
4362 .when(
4363 reveal_in_project_panel.is_some() || parent_abs_path.is_some(),
4364 |menu| menu.separator(),
4365 )
4366 .when_some(reveal_in_project_panel, |menu, entry_id| {
4367 menu.entry(
4368 "Reveal In Project Panel",
4369 Some(Box::new(RevealInProjectPanel::default())),
4370 window.handler_for(&editor, move |editor, _, cx| {
4371 if let Some(project) = &mut editor.project {
4372 project.update(cx, |_, cx| {
4373 cx.emit(project::Event::RevealInProjectPanel(
4374 entry_id,
4375 ))
4376 });
4377 }
4378 }),
4379 )
4380 })
4381 .when_some(parent_abs_path, |menu, parent_abs_path| {
4382 menu.entry(
4383 "Open in Terminal",
4384 Some(Box::new(OpenInTerminal)),
4385 window.handler_for(&editor, move |_, window, cx| {
4386 window.dispatch_action(
4387 OpenTerminal {
4388 working_directory: parent_abs_path.clone(),
4389 }
4390 .boxed_clone(),
4391 cx,
4392 );
4393 }),
4394 )
4395 });
4396 }
4397
4398 menu.context(menu_context)
4399 })
4400 })
4401 }
4402
4403 fn render_blocks(
4404 &self,
4405 rows: Range<DisplayRow>,
4406 snapshot: &EditorSnapshot,
4407 hitbox: &Hitbox,
4408 text_hitbox: &Hitbox,
4409 editor_width: Pixels,
4410 scroll_width: &mut Pixels,
4411 editor_margins: &EditorMargins,
4412 em_width: Pixels,
4413 text_x: Pixels,
4414 line_height: Pixels,
4415 line_layouts: &mut [LineWithInvisibles],
4416 selections: &[Selection<Point>],
4417 selected_buffer_ids: &Vec<BufferId>,
4418 latest_selection_anchors: &HashMap<BufferId, Anchor>,
4419 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4420 sticky_header_excerpt_id: Option<ExcerptId>,
4421 window: &mut Window,
4422 cx: &mut App,
4423 ) -> RenderBlocksOutput {
4424 let (fixed_blocks, non_fixed_blocks) = snapshot
4425 .blocks_in_range(rows.clone())
4426 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
4427
4428 let mut focused_block = self
4429 .editor
4430 .update(cx, |editor, _| editor.take_focused_block());
4431 let mut fixed_block_max_width = Pixels::ZERO;
4432 let mut blocks = Vec::new();
4433 let mut resized_blocks = HashMap::default();
4434 let mut row_block_types = HashMap::default();
4435 let mut block_resize_offset: i32 = 0;
4436
4437 for (row, block) in fixed_blocks {
4438 let block_id = block.id();
4439
4440 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4441 focused_block = None;
4442 }
4443
4444 if let Some((element, element_size, row, x_offset)) = self.render_block(
4445 block,
4446 AvailableSpace::MinContent,
4447 block_id,
4448 row,
4449 snapshot,
4450 text_x,
4451 &rows,
4452 line_layouts,
4453 editor_margins,
4454 line_height,
4455 em_width,
4456 text_hitbox,
4457 editor_width,
4458 scroll_width,
4459 &mut resized_blocks,
4460 &mut row_block_types,
4461 selections,
4462 selected_buffer_ids,
4463 latest_selection_anchors,
4464 is_row_soft_wrapped,
4465 sticky_header_excerpt_id,
4466 &mut block_resize_offset,
4467 window,
4468 cx,
4469 ) {
4470 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
4471 blocks.push(BlockLayout {
4472 id: block_id,
4473 x_offset,
4474 row: Some(row),
4475 element,
4476 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
4477 style: BlockStyle::Fixed,
4478 overlaps_gutter: true,
4479 is_buffer_header: block.is_buffer_header(),
4480 });
4481 }
4482 }
4483
4484 for (row, block) in non_fixed_blocks {
4485 let style = block.style();
4486 let width = match (style, block.place_near()) {
4487 (_, true) => AvailableSpace::MinContent,
4488 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
4489 (BlockStyle::Flex, _) => hitbox
4490 .size
4491 .width
4492 .max(fixed_block_max_width)
4493 .max(editor_margins.gutter.width + *scroll_width)
4494 .into(),
4495 (BlockStyle::Fixed, _) => unreachable!(),
4496 };
4497 let block_id = block.id();
4498
4499 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4500 focused_block = None;
4501 }
4502
4503 if let Some((element, element_size, row, x_offset)) = self.render_block(
4504 block,
4505 width,
4506 block_id,
4507 row,
4508 snapshot,
4509 text_x,
4510 &rows,
4511 line_layouts,
4512 editor_margins,
4513 line_height,
4514 em_width,
4515 text_hitbox,
4516 editor_width,
4517 scroll_width,
4518 &mut resized_blocks,
4519 &mut row_block_types,
4520 selections,
4521 selected_buffer_ids,
4522 latest_selection_anchors,
4523 is_row_soft_wrapped,
4524 sticky_header_excerpt_id,
4525 &mut block_resize_offset,
4526 window,
4527 cx,
4528 ) {
4529 blocks.push(BlockLayout {
4530 id: block_id,
4531 x_offset,
4532 row: Some(row),
4533 element,
4534 available_space: size(width, element_size.height.into()),
4535 style,
4536 overlaps_gutter: !block.place_near(),
4537 is_buffer_header: block.is_buffer_header(),
4538 });
4539 }
4540 }
4541
4542 if let Some(focused_block) = focused_block
4543 && let Some(focus_handle) = focused_block.focus_handle.upgrade()
4544 && focus_handle.is_focused(window)
4545 && let Some(block) = snapshot.block_for_id(focused_block.id)
4546 {
4547 let style = block.style();
4548 let width = match style {
4549 BlockStyle::Fixed => AvailableSpace::MinContent,
4550 BlockStyle::Flex => AvailableSpace::Definite(
4551 hitbox
4552 .size
4553 .width
4554 .max(fixed_block_max_width)
4555 .max(editor_margins.gutter.width + *scroll_width),
4556 ),
4557 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
4558 };
4559
4560 if let Some((element, element_size, _, x_offset)) = self.render_block(
4561 &block,
4562 width,
4563 focused_block.id,
4564 rows.end,
4565 snapshot,
4566 text_x,
4567 &rows,
4568 line_layouts,
4569 editor_margins,
4570 line_height,
4571 em_width,
4572 text_hitbox,
4573 editor_width,
4574 scroll_width,
4575 &mut resized_blocks,
4576 &mut row_block_types,
4577 selections,
4578 selected_buffer_ids,
4579 latest_selection_anchors,
4580 is_row_soft_wrapped,
4581 sticky_header_excerpt_id,
4582 &mut block_resize_offset,
4583 window,
4584 cx,
4585 ) {
4586 blocks.push(BlockLayout {
4587 id: block.id(),
4588 x_offset,
4589 row: None,
4590 element,
4591 available_space: size(width, element_size.height.into()),
4592 style,
4593 overlaps_gutter: true,
4594 is_buffer_header: block.is_buffer_header(),
4595 });
4596 }
4597 }
4598
4599 if resized_blocks.is_empty() {
4600 *scroll_width =
4601 (*scroll_width).max(fixed_block_max_width - editor_margins.gutter.width);
4602 }
4603
4604 RenderBlocksOutput {
4605 blocks,
4606 row_block_types,
4607 resized_blocks: (!resized_blocks.is_empty()).then_some(resized_blocks),
4608 }
4609 }
4610
4611 fn layout_blocks(
4612 &self,
4613 blocks: &mut Vec<BlockLayout>,
4614 hitbox: &Hitbox,
4615 line_height: Pixels,
4616 scroll_position: gpui::Point<ScrollOffset>,
4617 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4618 window: &mut Window,
4619 cx: &mut App,
4620 ) {
4621 for block in blocks {
4622 let mut origin = if let Some(row) = block.row {
4623 hitbox.origin
4624 + point(
4625 block.x_offset,
4626 Pixels::from(
4627 (row.as_f64() - scroll_position.y)
4628 * ScrollPixelOffset::from(line_height),
4629 ),
4630 )
4631 } else {
4632 // Position the block outside the visible area
4633 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
4634 };
4635
4636 if !matches!(block.style, BlockStyle::Sticky) {
4637 origin += point(Pixels::from(-scroll_pixel_position.x), Pixels::ZERO);
4638 }
4639
4640 let focus_handle =
4641 block
4642 .element
4643 .prepaint_as_root(origin, block.available_space, window, cx);
4644
4645 if let Some(focus_handle) = focus_handle {
4646 self.editor.update(cx, |editor, _cx| {
4647 editor.set_focused_block(FocusedBlock {
4648 id: block.id,
4649 focus_handle: focus_handle.downgrade(),
4650 });
4651 });
4652 }
4653 }
4654 }
4655
4656 fn layout_sticky_buffer_header(
4657 &self,
4658 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
4659 scroll_position: gpui::Point<ScrollOffset>,
4660 line_height: Pixels,
4661 right_margin: Pixels,
4662 snapshot: &EditorSnapshot,
4663 hitbox: &Hitbox,
4664 selected_buffer_ids: &Vec<BufferId>,
4665 blocks: &[BlockLayout],
4666 latest_selection_anchors: &HashMap<BufferId, Anchor>,
4667 window: &mut Window,
4668 cx: &mut App,
4669 ) -> AnyElement {
4670 let jump_data = header_jump_data(
4671 snapshot,
4672 DisplayRow(scroll_position.y as u32),
4673 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
4674 excerpt,
4675 latest_selection_anchors,
4676 );
4677
4678 let editor_bg_color = cx.theme().colors().editor_background;
4679
4680 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
4681
4682 let available_width = hitbox.bounds.size.width - right_margin;
4683
4684 let mut header = v_flex()
4685 .w_full()
4686 .relative()
4687 .child(
4688 div()
4689 .w(available_width)
4690 .h(FILE_HEADER_HEIGHT as f32 * line_height)
4691 .bg(linear_gradient(
4692 0.,
4693 linear_color_stop(editor_bg_color.opacity(0.), 0.),
4694 linear_color_stop(editor_bg_color, 0.6),
4695 ))
4696 .absolute()
4697 .top_0(),
4698 )
4699 .child(
4700 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
4701 .into_any_element(),
4702 )
4703 .into_any_element();
4704
4705 let mut origin = hitbox.origin;
4706 // Move floating header up to avoid colliding with the next buffer header.
4707 for block in blocks.iter() {
4708 if !block.is_buffer_header {
4709 continue;
4710 }
4711
4712 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position.y as u32) else {
4713 continue;
4714 };
4715
4716 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
4717 let offset = scroll_position.y - max_row as f64;
4718
4719 if offset > 0.0 {
4720 origin.y -= Pixels::from(offset * ScrollPixelOffset::from(line_height));
4721 }
4722 break;
4723 }
4724
4725 let size = size(
4726 AvailableSpace::Definite(available_width),
4727 AvailableSpace::MinContent,
4728 );
4729
4730 header.prepaint_as_root(origin, size, window, cx);
4731
4732 header
4733 }
4734
4735 fn layout_sticky_headers(
4736 &self,
4737 snapshot: &EditorSnapshot,
4738 editor_width: Pixels,
4739 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4740 line_height: Pixels,
4741 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4742 content_origin: gpui::Point<Pixels>,
4743 gutter_dimensions: &GutterDimensions,
4744 gutter_hitbox: &Hitbox,
4745 text_hitbox: &Hitbox,
4746 style: &EditorStyle,
4747 relative_line_numbers: RelativeLineNumbers,
4748 relative_to: Option<DisplayRow>,
4749 window: &mut Window,
4750 cx: &mut App,
4751 ) -> Option<StickyHeaders> {
4752 let show_line_numbers = snapshot
4753 .show_line_numbers
4754 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
4755
4756 let rows = Self::sticky_headers(self.editor.read(cx), snapshot, style, cx);
4757
4758 let mut lines = Vec::<StickyHeaderLine>::new();
4759
4760 for StickyHeader {
4761 item,
4762 sticky_row,
4763 start_point,
4764 offset,
4765 } in rows.into_iter().rev()
4766 {
4767 let line = layout_line(
4768 sticky_row,
4769 snapshot,
4770 &self.style,
4771 editor_width,
4772 is_row_soft_wrapped,
4773 window,
4774 cx,
4775 );
4776
4777 let line_number = show_line_numbers.then(|| {
4778 let start_display_row = start_point.to_display_point(snapshot).row();
4779 let relative_number = relative_to
4780 .filter(|_| relative_line_numbers != RelativeLineNumbers::Disabled)
4781 .map(|base| {
4782 snapshot.relative_line_delta(
4783 base,
4784 start_display_row,
4785 relative_line_numbers == RelativeLineNumbers::Wrapped,
4786 )
4787 });
4788 let number = relative_number
4789 .filter(|&delta| delta != 0)
4790 .map(|delta| delta.unsigned_abs() as u32)
4791 .unwrap_or(start_point.row + 1);
4792 let color = cx.theme().colors().editor_line_number;
4793 self.shape_line_number(SharedString::from(number.to_string()), color, window)
4794 });
4795
4796 lines.push(StickyHeaderLine::new(
4797 sticky_row,
4798 line_height * offset as f32,
4799 line,
4800 line_number,
4801 item.range.start,
4802 line_height,
4803 scroll_pixel_position,
4804 content_origin,
4805 gutter_hitbox,
4806 text_hitbox,
4807 window,
4808 cx,
4809 ));
4810 }
4811
4812 lines.reverse();
4813 if lines.is_empty() {
4814 return None;
4815 }
4816
4817 Some(StickyHeaders {
4818 lines,
4819 gutter_background: cx.theme().colors().editor_gutter_background,
4820 content_background: self.style.background,
4821 gutter_right_padding: gutter_dimensions.right_padding,
4822 })
4823 }
4824
4825 pub(crate) fn sticky_headers(
4826 editor: &Editor,
4827 snapshot: &EditorSnapshot,
4828 style: &EditorStyle,
4829 cx: &App,
4830 ) -> Vec<StickyHeader> {
4831 let scroll_top = snapshot.scroll_position().y;
4832
4833 let mut end_rows = Vec::<DisplayRow>::new();
4834 let mut rows = Vec::<StickyHeader>::new();
4835
4836 let items = editor.sticky_headers(style, cx).unwrap_or_default();
4837
4838 for item in items {
4839 let start_point = item.range.start.to_point(snapshot.buffer_snapshot());
4840 let end_point = item.range.end.to_point(snapshot.buffer_snapshot());
4841
4842 let sticky_row = snapshot
4843 .display_snapshot
4844 .point_to_display_point(start_point, Bias::Left)
4845 .row();
4846 let end_row = snapshot
4847 .display_snapshot
4848 .point_to_display_point(end_point, Bias::Left)
4849 .row();
4850 let max_sticky_row = end_row.previous_row();
4851 if max_sticky_row <= sticky_row {
4852 continue;
4853 }
4854
4855 while end_rows
4856 .last()
4857 .is_some_and(|&last_end| last_end < sticky_row)
4858 {
4859 end_rows.pop();
4860 }
4861 let depth = end_rows.len();
4862 let adjusted_scroll_top = scroll_top + depth as f64;
4863
4864 if sticky_row.as_f64() >= adjusted_scroll_top || end_row.as_f64() <= adjusted_scroll_top
4865 {
4866 continue;
4867 }
4868
4869 let max_scroll_offset = max_sticky_row.as_f64() - scroll_top;
4870 let offset = (depth as f64).min(max_scroll_offset);
4871
4872 end_rows.push(end_row);
4873 rows.push(StickyHeader {
4874 item,
4875 sticky_row,
4876 start_point,
4877 offset,
4878 });
4879 }
4880
4881 rows
4882 }
4883
4884 fn layout_cursor_popovers(
4885 &self,
4886 line_height: Pixels,
4887 text_hitbox: &Hitbox,
4888 content_origin: gpui::Point<Pixels>,
4889 right_margin: Pixels,
4890 start_row: DisplayRow,
4891 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4892 line_layouts: &[LineWithInvisibles],
4893 cursor: DisplayPoint,
4894 cursor_point: Point,
4895 style: &EditorStyle,
4896 window: &mut Window,
4897 cx: &mut App,
4898 ) -> Option<ContextMenuLayout> {
4899 let mut min_menu_height = Pixels::ZERO;
4900 let mut max_menu_height = Pixels::ZERO;
4901 let mut height_above_menu = Pixels::ZERO;
4902 let height_below_menu = Pixels::ZERO;
4903 let mut edit_prediction_popover_visible = false;
4904 let mut context_menu_visible = false;
4905 let context_menu_placement;
4906
4907 {
4908 let editor = self.editor.read(cx);
4909 if editor.edit_prediction_visible_in_cursor_popover(editor.has_active_edit_prediction())
4910 {
4911 height_above_menu +=
4912 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
4913 edit_prediction_popover_visible = true;
4914 }
4915
4916 if editor.context_menu_visible()
4917 && let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin()
4918 {
4919 let (min_height_in_lines, max_height_in_lines) = editor
4920 .context_menu_options
4921 .as_ref()
4922 .map_or((3, 12), |options| {
4923 (options.min_entries_visible, options.max_entries_visible)
4924 });
4925
4926 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4927 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4928 context_menu_visible = true;
4929 }
4930 context_menu_placement = editor
4931 .context_menu_options
4932 .as_ref()
4933 .and_then(|options| options.placement.clone());
4934 }
4935
4936 let visible = edit_prediction_popover_visible || context_menu_visible;
4937 if !visible {
4938 return None;
4939 }
4940
4941 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
4942 let target_position = content_origin
4943 + gpui::Point {
4944 x: cmp::max(
4945 px(0.),
4946 Pixels::from(
4947 ScrollPixelOffset::from(
4948 cursor_row_layout.x_for_index(cursor.column() as usize),
4949 ) - scroll_pixel_position.x,
4950 ),
4951 ),
4952 y: cmp::max(
4953 px(0.),
4954 Pixels::from(
4955 cursor.row().next_row().as_f64() * ScrollPixelOffset::from(line_height)
4956 - scroll_pixel_position.y,
4957 ),
4958 ),
4959 };
4960
4961 let viewport_bounds =
4962 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4963 right: -right_margin - MENU_GAP,
4964 ..Default::default()
4965 });
4966
4967 let min_height = height_above_menu + min_menu_height + height_below_menu;
4968 let max_height = height_above_menu + max_menu_height + height_below_menu;
4969 let (laid_out_popovers, y_flipped) = self.layout_popovers_above_or_below_line(
4970 target_position,
4971 line_height,
4972 min_height,
4973 max_height,
4974 context_menu_placement,
4975 text_hitbox,
4976 viewport_bounds,
4977 window,
4978 cx,
4979 |height, max_width_for_stable_x, y_flipped, window, cx| {
4980 // First layout the menu to get its size - others can be at least this wide.
4981 let context_menu = if context_menu_visible {
4982 let menu_height = if y_flipped {
4983 height - height_below_menu
4984 } else {
4985 height - height_above_menu
4986 };
4987 let mut element = self
4988 .render_context_menu(line_height, menu_height, window, cx)
4989 .expect("Visible context menu should always render.");
4990 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4991 Some((CursorPopoverType::CodeContextMenu, element, size))
4992 } else {
4993 None
4994 };
4995 let min_width = context_menu
4996 .as_ref()
4997 .map_or(px(0.), |(_, _, size)| size.width);
4998 let max_width = max_width_for_stable_x.max(
4999 context_menu
5000 .as_ref()
5001 .map_or(px(0.), |(_, _, size)| size.width),
5002 );
5003
5004 let edit_prediction = if edit_prediction_popover_visible {
5005 self.editor.update(cx, move |editor, cx| {
5006 let accept_binding = editor.accept_edit_prediction_keybind(
5007 EditPredictionGranularity::Full,
5008 window,
5009 cx,
5010 );
5011 let mut element = editor.render_edit_prediction_cursor_popover(
5012 min_width,
5013 max_width,
5014 cursor_point,
5015 style,
5016 accept_binding.keystroke(),
5017 window,
5018 cx,
5019 )?;
5020 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
5021 Some((CursorPopoverType::EditPrediction, element, size))
5022 })
5023 } else {
5024 None
5025 };
5026 vec![edit_prediction, context_menu]
5027 .into_iter()
5028 .flatten()
5029 .collect::<Vec<_>>()
5030 },
5031 )?;
5032
5033 let (menu_ix, (_, menu_bounds)) = laid_out_popovers
5034 .iter()
5035 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))?;
5036 let last_ix = laid_out_popovers.len() - 1;
5037 let menu_is_last = menu_ix == last_ix;
5038 let first_popover_bounds = laid_out_popovers[0].1;
5039 let last_popover_bounds = laid_out_popovers[last_ix].1;
5040
5041 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
5042 // right, and otherwise it goes below or to the right.
5043 let mut target_bounds = Bounds::from_corners(
5044 first_popover_bounds.origin,
5045 last_popover_bounds.bottom_right(),
5046 );
5047 target_bounds.size.width = menu_bounds.size.width;
5048
5049 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
5050 // based on this is preferred for layout stability.
5051 let mut max_target_bounds = target_bounds;
5052 max_target_bounds.size.height = max_height;
5053 if y_flipped {
5054 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
5055 }
5056
5057 // Add spacing around `target_bounds` and `max_target_bounds`.
5058 let mut extend_amount = Edges::all(MENU_GAP);
5059 if y_flipped {
5060 extend_amount.bottom = line_height;
5061 } else {
5062 extend_amount.top = line_height;
5063 }
5064 let target_bounds = target_bounds.extend(extend_amount);
5065 let max_target_bounds = max_target_bounds.extend(extend_amount);
5066
5067 let must_place_above_or_below =
5068 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
5069 laid_out_popovers[menu_ix + 1..]
5070 .iter()
5071 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
5072 } else {
5073 false
5074 };
5075
5076 let aside_bounds = self.layout_context_menu_aside(
5077 y_flipped,
5078 *menu_bounds,
5079 target_bounds,
5080 max_target_bounds,
5081 max_menu_height,
5082 must_place_above_or_below,
5083 text_hitbox,
5084 viewport_bounds,
5085 window,
5086 cx,
5087 );
5088
5089 if let Some(menu_bounds) = laid_out_popovers.iter().find_map(|(popover_type, bounds)| {
5090 if matches!(popover_type, CursorPopoverType::CodeContextMenu) {
5091 Some(*bounds)
5092 } else {
5093 None
5094 }
5095 }) {
5096 let bounds = if let Some(aside_bounds) = aside_bounds {
5097 menu_bounds.union(&aside_bounds)
5098 } else {
5099 menu_bounds
5100 };
5101 return Some(ContextMenuLayout { y_flipped, bounds });
5102 }
5103
5104 None
5105 }
5106
5107 fn layout_gutter_menu(
5108 &self,
5109 line_height: Pixels,
5110 text_hitbox: &Hitbox,
5111 content_origin: gpui::Point<Pixels>,
5112 right_margin: Pixels,
5113 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5114 gutter_overshoot: Pixels,
5115 window: &mut Window,
5116 cx: &mut App,
5117 ) {
5118 let editor = self.editor.read(cx);
5119 if !editor.context_menu_visible() {
5120 return;
5121 }
5122 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
5123 editor.context_menu_origin()
5124 else {
5125 return;
5126 };
5127 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
5128 // indicator than just a plain first column of the text field.
5129 let target_position = content_origin
5130 + gpui::Point {
5131 x: -gutter_overshoot,
5132 y: Pixels::from(
5133 gutter_row.next_row().as_f64() * ScrollPixelOffset::from(line_height)
5134 - scroll_pixel_position.y,
5135 ),
5136 };
5137
5138 let (min_height_in_lines, max_height_in_lines) = editor
5139 .context_menu_options
5140 .as_ref()
5141 .map_or((3, 12), |options| {
5142 (options.min_entries_visible, options.max_entries_visible)
5143 });
5144
5145 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
5146 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
5147 let viewport_bounds =
5148 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
5149 right: -right_margin - MENU_GAP,
5150 ..Default::default()
5151 });
5152 self.layout_popovers_above_or_below_line(
5153 target_position,
5154 line_height,
5155 min_height,
5156 max_height,
5157 editor
5158 .context_menu_options
5159 .as_ref()
5160 .and_then(|options| options.placement.clone()),
5161 text_hitbox,
5162 viewport_bounds,
5163 window,
5164 cx,
5165 move |height, _max_width_for_stable_x, _, window, cx| {
5166 let mut element = self
5167 .render_context_menu(line_height, height, window, cx)
5168 .expect("Visible context menu should always render.");
5169 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
5170 vec![(CursorPopoverType::CodeContextMenu, element, size)]
5171 },
5172 );
5173 }
5174
5175 fn layout_popovers_above_or_below_line(
5176 &self,
5177 target_position: gpui::Point<Pixels>,
5178 line_height: Pixels,
5179 min_height: Pixels,
5180 max_height: Pixels,
5181 placement: Option<ContextMenuPlacement>,
5182 text_hitbox: &Hitbox,
5183 viewport_bounds: Bounds<Pixels>,
5184 window: &mut Window,
5185 cx: &mut App,
5186 make_sized_popovers: impl FnOnce(
5187 Pixels,
5188 Pixels,
5189 bool,
5190 &mut Window,
5191 &mut App,
5192 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
5193 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
5194 let text_style = TextStyleRefinement {
5195 line_height: Some(DefiniteLength::Fraction(
5196 BufferLineHeight::Comfortable.value(),
5197 )),
5198 ..Default::default()
5199 };
5200 window.with_text_style(Some(text_style), |window| {
5201 // If the max height won't fit below and there is more space above, put it above the line.
5202 let bottom_y_when_flipped = target_position.y - line_height;
5203 let available_above = bottom_y_when_flipped - text_hitbox.top();
5204 let available_below = text_hitbox.bottom() - target_position.y;
5205 let y_overflows_below = max_height > available_below;
5206 let mut y_flipped = match placement {
5207 Some(ContextMenuPlacement::Above) => true,
5208 Some(ContextMenuPlacement::Below) => false,
5209 None => y_overflows_below && available_above > available_below,
5210 };
5211 let mut height = cmp::min(
5212 max_height,
5213 if y_flipped {
5214 available_above
5215 } else {
5216 available_below
5217 },
5218 );
5219
5220 // If the min height doesn't fit within text bounds, instead fit within the window.
5221 if height < min_height {
5222 let available_above = bottom_y_when_flipped;
5223 let available_below = viewport_bounds.bottom() - target_position.y;
5224 let (y_flipped_override, height_override) = match placement {
5225 Some(ContextMenuPlacement::Above) => {
5226 (true, cmp::min(available_above, min_height))
5227 }
5228 Some(ContextMenuPlacement::Below) => {
5229 (false, cmp::min(available_below, min_height))
5230 }
5231 None => {
5232 if available_below > min_height {
5233 (false, min_height)
5234 } else if available_above > min_height {
5235 (true, min_height)
5236 } else if available_above > available_below {
5237 (true, available_above)
5238 } else {
5239 (false, available_below)
5240 }
5241 }
5242 };
5243 y_flipped = y_flipped_override;
5244 height = height_override;
5245 }
5246
5247 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
5248
5249 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
5250 // for very narrow windows.
5251 let popovers =
5252 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
5253 if popovers.is_empty() {
5254 return None;
5255 }
5256
5257 let max_width = popovers
5258 .iter()
5259 .map(|(_, _, size)| size.width)
5260 .max()
5261 .unwrap_or_default();
5262
5263 let mut current_position = gpui::Point {
5264 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
5265 // overflow. Include space for the scrollbar.
5266 x: target_position
5267 .x
5268 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
5269 y: if y_flipped {
5270 bottom_y_when_flipped
5271 } else {
5272 target_position.y
5273 },
5274 };
5275
5276 let mut laid_out_popovers = popovers
5277 .into_iter()
5278 .map(|(popover_type, element, size)| {
5279 if y_flipped {
5280 current_position.y -= size.height;
5281 }
5282 let position = current_position;
5283 window.defer_draw(element, current_position, 1);
5284 if !y_flipped {
5285 current_position.y += size.height + MENU_GAP;
5286 } else {
5287 current_position.y -= MENU_GAP;
5288 }
5289 (popover_type, Bounds::new(position, size))
5290 })
5291 .collect::<Vec<_>>();
5292
5293 if y_flipped {
5294 laid_out_popovers.reverse();
5295 }
5296
5297 Some((laid_out_popovers, y_flipped))
5298 })
5299 }
5300
5301 fn layout_context_menu_aside(
5302 &self,
5303 y_flipped: bool,
5304 menu_bounds: Bounds<Pixels>,
5305 target_bounds: Bounds<Pixels>,
5306 max_target_bounds: Bounds<Pixels>,
5307 max_height: Pixels,
5308 must_place_above_or_below: bool,
5309 text_hitbox: &Hitbox,
5310 viewport_bounds: Bounds<Pixels>,
5311 window: &mut Window,
5312 cx: &mut App,
5313 ) -> Option<Bounds<Pixels>> {
5314 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
5315 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
5316 && !must_place_above_or_below
5317 {
5318 let max_width = cmp::min(
5319 available_within_viewport.right - px(1.),
5320 MENU_ASIDE_MAX_WIDTH,
5321 );
5322 let mut aside = self.render_context_menu_aside(
5323 size(max_width, max_height - POPOVER_Y_PADDING),
5324 window,
5325 cx,
5326 )?;
5327 let size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5328 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
5329 Some((aside, right_position, size))
5330 } else {
5331 let max_size = size(
5332 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
5333 // won't be needed here.
5334 cmp::min(
5335 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
5336 viewport_bounds.right(),
5337 ),
5338 cmp::min(
5339 max_height,
5340 cmp::max(
5341 available_within_viewport.top,
5342 available_within_viewport.bottom,
5343 ),
5344 ) - POPOVER_Y_PADDING,
5345 );
5346 let mut aside = self.render_context_menu_aside(max_size, window, cx)?;
5347 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5348
5349 let top_position = point(
5350 menu_bounds.origin.x,
5351 target_bounds.top() - actual_size.height,
5352 );
5353 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
5354
5355 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
5356 // Prefer to fit on the same side of the line as the menu, then on the other side of
5357 // the line.
5358 if !y_flipped && wanted.height < available.bottom {
5359 Some(bottom_position)
5360 } else if !y_flipped && wanted.height < available.top {
5361 Some(top_position)
5362 } else if y_flipped && wanted.height < available.top {
5363 Some(top_position)
5364 } else if y_flipped && wanted.height < available.bottom {
5365 Some(bottom_position)
5366 } else {
5367 None
5368 }
5369 };
5370
5371 // Prefer choosing a direction using max sizes rather than actual size for stability.
5372 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
5373 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
5374 let aside_position = fit_within(available_within_text, wanted)
5375 // Fallback: fit max size in window.
5376 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
5377 // Fallback: fit actual size in window.
5378 .or_else(|| fit_within(available_within_viewport, actual_size));
5379
5380 aside_position.map(|position| (aside, position, actual_size))
5381 };
5382
5383 // Skip drawing if it doesn't fit anywhere.
5384 if let Some((aside, position, size)) = positioned_aside {
5385 let aside_bounds = Bounds::new(position, size);
5386 window.defer_draw(aside, position, 2);
5387 return Some(aside_bounds);
5388 }
5389
5390 None
5391 }
5392
5393 fn render_context_menu(
5394 &self,
5395 line_height: Pixels,
5396 height: Pixels,
5397 window: &mut Window,
5398 cx: &mut App,
5399 ) -> Option<AnyElement> {
5400 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
5401 self.editor.update(cx, |editor, cx| {
5402 editor.render_context_menu(max_height_in_lines, window, cx)
5403 })
5404 }
5405
5406 fn render_context_menu_aside(
5407 &self,
5408 max_size: Size<Pixels>,
5409 window: &mut Window,
5410 cx: &mut App,
5411 ) -> Option<AnyElement> {
5412 if max_size.width < px(100.) || max_size.height < px(12.) {
5413 None
5414 } else {
5415 self.editor.update(cx, |editor, cx| {
5416 editor.render_context_menu_aside(max_size, window, cx)
5417 })
5418 }
5419 }
5420
5421 fn layout_mouse_context_menu(
5422 &self,
5423 editor_snapshot: &EditorSnapshot,
5424 visible_range: Range<DisplayRow>,
5425 content_origin: gpui::Point<Pixels>,
5426 window: &mut Window,
5427 cx: &mut App,
5428 ) -> Option<AnyElement> {
5429 let position = self.editor.update(cx, |editor, cx| {
5430 let visible_start_point = editor.display_to_pixel_point(
5431 DisplayPoint::new(visible_range.start, 0),
5432 editor_snapshot,
5433 window,
5434 cx,
5435 )?;
5436 let visible_end_point = editor.display_to_pixel_point(
5437 DisplayPoint::new(visible_range.end, 0),
5438 editor_snapshot,
5439 window,
5440 cx,
5441 )?;
5442
5443 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5444 let (source_display_point, position) = match mouse_context_menu.position {
5445 MenuPosition::PinnedToScreen(point) => (None, point),
5446 MenuPosition::PinnedToEditor { source, offset } => {
5447 let source_display_point = source.to_display_point(editor_snapshot);
5448 let source_point =
5449 editor.to_pixel_point(source, editor_snapshot, window, cx)?;
5450 let position = content_origin + source_point + offset;
5451 (Some(source_display_point), position)
5452 }
5453 };
5454
5455 let source_included = source_display_point.is_none_or(|source_display_point| {
5456 visible_range
5457 .to_inclusive()
5458 .contains(&source_display_point.row())
5459 });
5460 let position_included =
5461 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
5462 if !source_included && !position_included {
5463 None
5464 } else {
5465 Some(position)
5466 }
5467 })?;
5468
5469 let text_style = TextStyleRefinement {
5470 line_height: Some(DefiniteLength::Fraction(
5471 BufferLineHeight::Comfortable.value(),
5472 )),
5473 ..Default::default()
5474 };
5475 window.with_text_style(Some(text_style), |window| {
5476 let mut element = self.editor.read_with(cx, |editor, _| {
5477 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5478 let context_menu = mouse_context_menu.context_menu.clone();
5479
5480 Some(
5481 deferred(
5482 anchored()
5483 .position(position)
5484 .child(context_menu)
5485 .anchor(Corner::TopLeft)
5486 .snap_to_window_with_margin(px(8.)),
5487 )
5488 .with_priority(1)
5489 .into_any(),
5490 )
5491 })?;
5492
5493 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
5494 Some(element)
5495 })
5496 }
5497
5498 fn layout_hover_popovers(
5499 &self,
5500 snapshot: &EditorSnapshot,
5501 hitbox: &Hitbox,
5502 visible_display_row_range: Range<DisplayRow>,
5503 content_origin: gpui::Point<Pixels>,
5504 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5505 line_layouts: &[LineWithInvisibles],
5506 line_height: Pixels,
5507 em_width: Pixels,
5508 context_menu_layout: Option<ContextMenuLayout>,
5509 window: &mut Window,
5510 cx: &mut App,
5511 ) {
5512 struct MeasuredHoverPopover {
5513 element: AnyElement,
5514 size: Size<Pixels>,
5515 horizontal_offset: Pixels,
5516 }
5517
5518 let max_size = size(
5519 (120. * em_width) // Default size
5520 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5521 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5522 (16. * line_height) // Default size
5523 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5524 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5525 );
5526
5527 // Don't show hover popovers when context menu is open to avoid overlap
5528 let has_context_menu = self.editor.read(cx).mouse_context_menu.is_some();
5529 if has_context_menu {
5530 return;
5531 }
5532
5533 let hover_popovers = self.editor.update(cx, |editor, cx| {
5534 editor.hover_state.render(
5535 snapshot,
5536 visible_display_row_range.clone(),
5537 max_size,
5538 &editor.text_layout_details(window),
5539 window,
5540 cx,
5541 )
5542 });
5543 let Some((popover_position, hover_popovers)) = hover_popovers else {
5544 return;
5545 };
5546
5547 // This is safe because we check on layout whether the required row is available
5548 let hovered_row_layout = &line_layouts[popover_position
5549 .row()
5550 .minus(visible_display_row_range.start)
5551 as usize];
5552
5553 // Compute Hovered Point
5554 let x = hovered_row_layout.x_for_index(popover_position.column() as usize)
5555 - Pixels::from(scroll_pixel_position.x);
5556 let y = Pixels::from(
5557 popover_position.row().as_f64() * ScrollPixelOffset::from(line_height)
5558 - scroll_pixel_position.y,
5559 );
5560 let hovered_point = content_origin + point(x, y);
5561
5562 let mut overall_height = Pixels::ZERO;
5563 let mut measured_hover_popovers = Vec::new();
5564 for (position, mut hover_popover) in hover_popovers.into_iter().with_position() {
5565 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
5566 let horizontal_offset =
5567 (hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
5568 .min(Pixels::ZERO);
5569 match position {
5570 itertools::Position::Middle | itertools::Position::Last => {
5571 overall_height += HOVER_POPOVER_GAP
5572 }
5573 _ => {}
5574 }
5575 overall_height += size.height;
5576 measured_hover_popovers.push(MeasuredHoverPopover {
5577 element: hover_popover,
5578 size,
5579 horizontal_offset,
5580 });
5581 }
5582
5583 fn draw_occluder(
5584 width: Pixels,
5585 origin: gpui::Point<Pixels>,
5586 window: &mut Window,
5587 cx: &mut App,
5588 ) {
5589 let mut occlusion = div()
5590 .size_full()
5591 .occlude()
5592 .on_mouse_move(|_, _, cx| cx.stop_propagation())
5593 .into_any_element();
5594 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
5595 window.defer_draw(occlusion, origin, 2);
5596 }
5597
5598 fn place_popovers_above(
5599 hovered_point: gpui::Point<Pixels>,
5600 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5601 window: &mut Window,
5602 cx: &mut App,
5603 ) {
5604 let mut current_y = hovered_point.y;
5605 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5606 let size = popover.size;
5607 let popover_origin = point(
5608 hovered_point.x + popover.horizontal_offset,
5609 current_y - size.height,
5610 );
5611
5612 window.defer_draw(popover.element, popover_origin, 2);
5613 if position != itertools::Position::Last {
5614 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
5615 draw_occluder(size.width, origin, window, cx);
5616 }
5617
5618 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5619 }
5620 }
5621
5622 fn place_popovers_below(
5623 hovered_point: gpui::Point<Pixels>,
5624 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5625 line_height: Pixels,
5626 window: &mut Window,
5627 cx: &mut App,
5628 ) {
5629 let mut current_y = hovered_point.y + line_height;
5630 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5631 let size = popover.size;
5632 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5633
5634 window.defer_draw(popover.element, popover_origin, 2);
5635 if position != itertools::Position::Last {
5636 let origin = point(popover_origin.x, popover_origin.y + size.height);
5637 draw_occluder(size.width, origin, window, cx);
5638 }
5639
5640 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5641 }
5642 }
5643
5644 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5645 context_menu_layout
5646 .as_ref()
5647 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5648 };
5649
5650 let can_place_above = {
5651 let mut bounds_above = Vec::new();
5652 let mut current_y = hovered_point.y;
5653 for popover in &measured_hover_popovers {
5654 let size = popover.size;
5655 let popover_origin = point(
5656 hovered_point.x + popover.horizontal_offset,
5657 current_y - size.height,
5658 );
5659 bounds_above.push(Bounds::new(popover_origin, size));
5660 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5661 }
5662 bounds_above
5663 .iter()
5664 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5665 };
5666
5667 let can_place_below = || {
5668 let mut bounds_below = Vec::new();
5669 let mut current_y = hovered_point.y + line_height;
5670 for popover in &measured_hover_popovers {
5671 let size = popover.size;
5672 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5673 bounds_below.push(Bounds::new(popover_origin, size));
5674 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5675 }
5676 bounds_below
5677 .iter()
5678 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5679 };
5680
5681 if can_place_above {
5682 // try placing above hovered point
5683 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5684 } else if can_place_below() {
5685 // try placing below hovered point
5686 place_popovers_below(
5687 hovered_point,
5688 measured_hover_popovers,
5689 line_height,
5690 window,
5691 cx,
5692 );
5693 } else {
5694 // try to place popovers around the context menu
5695 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5696 let total_width = measured_hover_popovers
5697 .iter()
5698 .map(|p| p.size.width)
5699 .max()
5700 .unwrap_or(Pixels::ZERO);
5701 let y_for_horizontal_positioning = if menu.y_flipped {
5702 menu.bounds.bottom() - overall_height
5703 } else {
5704 menu.bounds.top()
5705 };
5706 let possible_origins = vec![
5707 // left of context menu
5708 point(
5709 menu.bounds.left() - total_width - HOVER_POPOVER_GAP,
5710 y_for_horizontal_positioning,
5711 ),
5712 // right of context menu
5713 point(
5714 menu.bounds.right() + HOVER_POPOVER_GAP,
5715 y_for_horizontal_positioning,
5716 ),
5717 // top of context menu
5718 point(
5719 menu.bounds.left(),
5720 menu.bounds.top() - overall_height - HOVER_POPOVER_GAP,
5721 ),
5722 // bottom of context menu
5723 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5724 ];
5725 possible_origins.into_iter().find(|&origin| {
5726 Bounds::new(origin, size(total_width, overall_height))
5727 .is_contained_within(hitbox)
5728 })
5729 });
5730 if let Some(origin) = origin_surrounding_menu {
5731 let mut current_y = origin.y;
5732 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5733 let size = popover.size;
5734 let popover_origin = point(origin.x, current_y);
5735
5736 window.defer_draw(popover.element, popover_origin, 2);
5737 if position != itertools::Position::Last {
5738 let origin = point(popover_origin.x, popover_origin.y + size.height);
5739 draw_occluder(size.width, origin, window, cx);
5740 }
5741
5742 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5743 }
5744 } else {
5745 // fallback to existing above/below cursor logic
5746 // this might overlap menu or overflow in rare case
5747 if can_place_above {
5748 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5749 } else {
5750 place_popovers_below(
5751 hovered_point,
5752 measured_hover_popovers,
5753 line_height,
5754 window,
5755 cx,
5756 );
5757 }
5758 }
5759 }
5760 }
5761
5762 fn layout_word_diff_highlights(
5763 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5764 row_infos: &[RowInfo],
5765 start_row: DisplayRow,
5766 snapshot: &EditorSnapshot,
5767 highlighted_ranges: &mut Vec<(Range<DisplayPoint>, Hsla)>,
5768 cx: &mut App,
5769 ) {
5770 let colors = cx.theme().colors();
5771
5772 let word_highlights = display_hunks
5773 .into_iter()
5774 .filter_map(|(hunk, _)| match hunk {
5775 DisplayDiffHunk::Unfolded {
5776 word_diffs, status, ..
5777 } => Some((word_diffs, status)),
5778 _ => None,
5779 })
5780 .filter(|(_, status)| status.is_modified())
5781 .flat_map(|(word_diffs, _)| word_diffs)
5782 .filter_map(|word_diff| {
5783 let start_point = word_diff.start.to_display_point(&snapshot.display_snapshot);
5784 let end_point = word_diff.end.to_display_point(&snapshot.display_snapshot);
5785 let start_row_offset = start_point.row().0.saturating_sub(start_row.0) as usize;
5786
5787 row_infos
5788 .get(start_row_offset)
5789 .and_then(|row_info| row_info.diff_status)
5790 .and_then(|diff_status| {
5791 let background_color = match diff_status.kind {
5792 DiffHunkStatusKind::Added => colors.version_control_word_added,
5793 DiffHunkStatusKind::Deleted => colors.version_control_word_deleted,
5794 DiffHunkStatusKind::Modified => {
5795 debug_panic!("modified diff status for row info");
5796 return None;
5797 }
5798 };
5799 Some((start_point..end_point, background_color))
5800 })
5801 });
5802
5803 highlighted_ranges.extend(word_highlights);
5804 }
5805
5806 fn layout_diff_hunk_controls(
5807 &self,
5808 row_range: Range<DisplayRow>,
5809 row_infos: &[RowInfo],
5810 text_hitbox: &Hitbox,
5811 newest_cursor_position: Option<DisplayPoint>,
5812 line_height: Pixels,
5813 right_margin: Pixels,
5814 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5815 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5816 highlighted_rows: &BTreeMap<DisplayRow, LineHighlight>,
5817 editor: Entity<Editor>,
5818 window: &mut Window,
5819 cx: &mut App,
5820 ) -> (Vec<AnyElement>, Vec<(DisplayRow, Bounds<Pixels>)>) {
5821 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
5822 let hovered_diff_hunk_row = editor.read(cx).hovered_diff_hunk_row;
5823
5824 let mut controls = vec![];
5825 let mut control_bounds = vec![];
5826
5827 let active_positions = [
5828 hovered_diff_hunk_row.map(|row| DisplayPoint::new(row, 0)),
5829 newest_cursor_position,
5830 ];
5831
5832 for (hunk, _) in display_hunks {
5833 if let DisplayDiffHunk::Unfolded {
5834 display_row_range,
5835 multi_buffer_range,
5836 status,
5837 is_created_file,
5838 ..
5839 } = &hunk
5840 {
5841 if display_row_range.start < row_range.start
5842 || display_row_range.start >= row_range.end
5843 {
5844 continue;
5845 }
5846 if highlighted_rows
5847 .get(&display_row_range.start)
5848 .and_then(|highlight| highlight.type_id)
5849 .is_some_and(|type_id| {
5850 [
5851 TypeId::of::<ConflictsOuter>(),
5852 TypeId::of::<ConflictsOursMarker>(),
5853 TypeId::of::<ConflictsOurs>(),
5854 TypeId::of::<ConflictsTheirs>(),
5855 TypeId::of::<ConflictsTheirsMarker>(),
5856 ]
5857 .contains(&type_id)
5858 })
5859 {
5860 continue;
5861 }
5862 let row_ix = (display_row_range.start - row_range.start).0 as usize;
5863 if row_infos[row_ix].diff_status.is_none() {
5864 continue;
5865 }
5866 if row_infos[row_ix]
5867 .diff_status
5868 .is_some_and(|status| status.is_added())
5869 && !status.is_added()
5870 {
5871 continue;
5872 }
5873
5874 if active_positions
5875 .iter()
5876 .any(|p| p.is_some_and(|p| display_row_range.contains(&p.row())))
5877 {
5878 let y = (display_row_range.start.as_f64()
5879 * ScrollPixelOffset::from(line_height)
5880 + ScrollPixelOffset::from(text_hitbox.bounds.top())
5881 - scroll_pixel_position.y)
5882 .into();
5883
5884 let mut element = render_diff_hunk_controls(
5885 display_row_range.start.0,
5886 status,
5887 multi_buffer_range.clone(),
5888 *is_created_file,
5889 line_height,
5890 &editor,
5891 window,
5892 cx,
5893 );
5894 let size =
5895 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
5896
5897 let x = text_hitbox.bounds.right() - right_margin - px(10.) - size.width;
5898
5899 if x < text_hitbox.bounds.left() {
5900 continue;
5901 }
5902
5903 let bounds = Bounds::new(gpui::Point::new(x, y), size);
5904 control_bounds.push((display_row_range.start, bounds));
5905
5906 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
5907 element.prepaint(window, cx)
5908 });
5909 controls.push(element);
5910 }
5911 }
5912 }
5913
5914 (controls, control_bounds)
5915 }
5916
5917 fn layout_signature_help(
5918 &self,
5919 hitbox: &Hitbox,
5920 content_origin: gpui::Point<Pixels>,
5921 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5922 newest_selection_head: Option<DisplayPoint>,
5923 start_row: DisplayRow,
5924 line_layouts: &[LineWithInvisibles],
5925 line_height: Pixels,
5926 em_width: Pixels,
5927 context_menu_layout: Option<ContextMenuLayout>,
5928 window: &mut Window,
5929 cx: &mut App,
5930 ) {
5931 if !self.editor.focus_handle(cx).is_focused(window) {
5932 return;
5933 }
5934 let Some(newest_selection_head) = newest_selection_head else {
5935 return;
5936 };
5937
5938 let max_size = size(
5939 (120. * em_width) // Default size
5940 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5941 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5942 (16. * line_height) // Default size
5943 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5944 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5945 );
5946
5947 let maybe_element = self.editor.update(cx, |editor, cx| {
5948 if let Some(popover) = editor.signature_help_state.popover_mut() {
5949 let element = popover.render(max_size, window, cx);
5950 Some(element)
5951 } else {
5952 None
5953 }
5954 });
5955 let Some(mut element) = maybe_element else {
5956 return;
5957 };
5958
5959 let selection_row = newest_selection_head.row();
5960 let Some(cursor_row_layout) = (selection_row >= start_row)
5961 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
5962 .flatten()
5963 else {
5964 return;
5965 };
5966
5967 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
5968 - Pixels::from(scroll_pixel_position.x);
5969 let target_y = Pixels::from(
5970 selection_row.as_f64() * ScrollPixelOffset::from(line_height) - scroll_pixel_position.y,
5971 );
5972 let target_point = content_origin + point(target_x, target_y);
5973
5974 let actual_size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
5975
5976 let (popover_bounds_above, popover_bounds_below) = {
5977 let horizontal_offset = (hitbox.top_right().x
5978 - POPOVER_RIGHT_OFFSET
5979 - (target_point.x + actual_size.width))
5980 .min(Pixels::ZERO);
5981 let initial_x = target_point.x + horizontal_offset;
5982 (
5983 Bounds::new(
5984 point(initial_x, target_point.y - actual_size.height),
5985 actual_size,
5986 ),
5987 Bounds::new(
5988 point(initial_x, target_point.y + line_height + HOVER_POPOVER_GAP),
5989 actual_size,
5990 ),
5991 )
5992 };
5993
5994 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5995 context_menu_layout
5996 .as_ref()
5997 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5998 };
5999
6000 let final_origin = if popover_bounds_above.is_contained_within(hitbox)
6001 && !intersects_menu(popover_bounds_above)
6002 {
6003 // try placing above cursor
6004 popover_bounds_above.origin
6005 } else if popover_bounds_below.is_contained_within(hitbox)
6006 && !intersects_menu(popover_bounds_below)
6007 {
6008 // try placing below cursor
6009 popover_bounds_below.origin
6010 } else {
6011 // try surrounding context menu if exists
6012 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
6013 let y_for_horizontal_positioning = if menu.y_flipped {
6014 menu.bounds.bottom() - actual_size.height
6015 } else {
6016 menu.bounds.top()
6017 };
6018 let possible_origins = vec![
6019 // left of context menu
6020 point(
6021 menu.bounds.left() - actual_size.width - HOVER_POPOVER_GAP,
6022 y_for_horizontal_positioning,
6023 ),
6024 // right of context menu
6025 point(
6026 menu.bounds.right() + HOVER_POPOVER_GAP,
6027 y_for_horizontal_positioning,
6028 ),
6029 // top of context menu
6030 point(
6031 menu.bounds.left(),
6032 menu.bounds.top() - actual_size.height - HOVER_POPOVER_GAP,
6033 ),
6034 // bottom of context menu
6035 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
6036 ];
6037 possible_origins
6038 .into_iter()
6039 .find(|&origin| Bounds::new(origin, actual_size).is_contained_within(hitbox))
6040 });
6041 origin_surrounding_menu.unwrap_or_else(|| {
6042 // fallback to existing above/below cursor logic
6043 // this might overlap menu or overflow in rare case
6044 if popover_bounds_above.is_contained_within(hitbox) {
6045 popover_bounds_above.origin
6046 } else {
6047 popover_bounds_below.origin
6048 }
6049 })
6050 };
6051
6052 window.defer_draw(element, final_origin, 2);
6053 }
6054
6055 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
6056 window.paint_layer(layout.hitbox.bounds, |window| {
6057 let scroll_top = layout.position_map.snapshot.scroll_position().y;
6058 let gutter_bg = cx.theme().colors().editor_gutter_background;
6059 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
6060 window.paint_quad(fill(
6061 layout.position_map.text_hitbox.bounds,
6062 self.style.background,
6063 ));
6064
6065 if matches!(
6066 layout.mode,
6067 EditorMode::Full { .. } | EditorMode::Minimap { .. }
6068 ) {
6069 let show_active_line_background = match layout.mode {
6070 EditorMode::Full {
6071 show_active_line_background,
6072 ..
6073 } => show_active_line_background,
6074 EditorMode::Minimap { .. } => true,
6075 _ => false,
6076 };
6077 let mut active_rows = layout.active_rows.iter().peekable();
6078 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
6079 let mut end_row = start_row.0;
6080 while active_rows
6081 .peek()
6082 .is_some_and(|(active_row, has_selection)| {
6083 active_row.0 == end_row + 1
6084 && has_selection.selection == contains_non_empty_selection.selection
6085 })
6086 {
6087 active_rows.next().unwrap();
6088 end_row += 1;
6089 }
6090
6091 if show_active_line_background && !contains_non_empty_selection.selection {
6092 let highlight_h_range =
6093 match layout.position_map.snapshot.current_line_highlight {
6094 CurrentLineHighlight::Gutter => Some(Range {
6095 start: layout.hitbox.left(),
6096 end: layout.gutter_hitbox.right(),
6097 }),
6098 CurrentLineHighlight::Line => Some(Range {
6099 start: layout.position_map.text_hitbox.bounds.left(),
6100 end: layout.position_map.text_hitbox.bounds.right(),
6101 }),
6102 CurrentLineHighlight::All => Some(Range {
6103 start: layout.hitbox.left(),
6104 end: layout.hitbox.right(),
6105 }),
6106 CurrentLineHighlight::None => None,
6107 };
6108 if let Some(range) = highlight_h_range {
6109 let active_line_bg = cx.theme().colors().editor_active_line_background;
6110 let bounds = Bounds {
6111 origin: point(
6112 range.start,
6113 layout.hitbox.origin.y
6114 + Pixels::from(
6115 (start_row.as_f64() - scroll_top)
6116 * ScrollPixelOffset::from(
6117 layout.position_map.line_height,
6118 ),
6119 ),
6120 ),
6121 size: size(
6122 range.end - range.start,
6123 layout.position_map.line_height
6124 * (end_row - start_row.0 + 1) as f32,
6125 ),
6126 };
6127 window.paint_quad(fill(bounds, active_line_bg));
6128 }
6129 }
6130 }
6131
6132 let mut paint_highlight = |highlight_row_start: DisplayRow,
6133 highlight_row_end: DisplayRow,
6134 highlight: crate::LineHighlight,
6135 edges| {
6136 let mut origin_x = layout.hitbox.left();
6137 let mut width = layout.hitbox.size.width;
6138 if !highlight.include_gutter {
6139 origin_x += layout.gutter_hitbox.size.width;
6140 width -= layout.gutter_hitbox.size.width;
6141 }
6142
6143 let origin = point(
6144 origin_x,
6145 layout.hitbox.origin.y
6146 + Pixels::from(
6147 (highlight_row_start.as_f64() - scroll_top)
6148 * ScrollPixelOffset::from(layout.position_map.line_height),
6149 ),
6150 );
6151 let size = size(
6152 width,
6153 layout.position_map.line_height
6154 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
6155 );
6156 let mut quad = fill(Bounds { origin, size }, highlight.background);
6157 if let Some(border_color) = highlight.border {
6158 quad.border_color = border_color;
6159 quad.border_widths = edges
6160 }
6161 window.paint_quad(quad);
6162 };
6163
6164 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
6165 None;
6166 for (&new_row, &new_background) in &layout.highlighted_rows {
6167 match &mut current_paint {
6168 &mut Some((current_background, ref mut current_range, mut edges)) => {
6169 let new_range_started = current_background != new_background
6170 || current_range.end.next_row() != new_row;
6171 if new_range_started {
6172 if current_range.end.next_row() == new_row {
6173 edges.bottom = px(0.);
6174 };
6175 paint_highlight(
6176 current_range.start,
6177 current_range.end,
6178 current_background,
6179 edges,
6180 );
6181 let edges = Edges {
6182 top: if current_range.end.next_row() != new_row {
6183 px(1.)
6184 } else {
6185 px(0.)
6186 },
6187 bottom: px(1.),
6188 ..Default::default()
6189 };
6190 current_paint = Some((new_background, new_row..new_row, edges));
6191 continue;
6192 } else {
6193 current_range.end = current_range.end.next_row();
6194 }
6195 }
6196 None => {
6197 let edges = Edges {
6198 top: px(1.),
6199 bottom: px(1.),
6200 ..Default::default()
6201 };
6202 current_paint = Some((new_background, new_row..new_row, edges))
6203 }
6204 };
6205 }
6206 if let Some((color, range, edges)) = current_paint {
6207 paint_highlight(range.start, range.end, color, edges);
6208 }
6209
6210 for (guide_x, active) in layout.wrap_guides.iter() {
6211 let color = if *active {
6212 cx.theme().colors().editor_active_wrap_guide
6213 } else {
6214 cx.theme().colors().editor_wrap_guide
6215 };
6216 window.paint_quad(fill(
6217 Bounds {
6218 origin: point(*guide_x, layout.position_map.text_hitbox.origin.y),
6219 size: size(px(1.), layout.position_map.text_hitbox.size.height),
6220 },
6221 color,
6222 ));
6223 }
6224 }
6225 })
6226 }
6227
6228 fn paint_indent_guides(
6229 &mut self,
6230 layout: &mut EditorLayout,
6231 window: &mut Window,
6232 cx: &mut App,
6233 ) {
6234 let Some(indent_guides) = &layout.indent_guides else {
6235 return;
6236 };
6237
6238 let faded_color = |color: Hsla, alpha: f32| {
6239 let mut faded = color;
6240 faded.a = alpha;
6241 faded
6242 };
6243
6244 for indent_guide in indent_guides {
6245 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
6246 let settings = &indent_guide.settings;
6247
6248 // TODO fixed for now, expose them through themes later
6249 const INDENT_AWARE_ALPHA: f32 = 0.2;
6250 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
6251 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
6252 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
6253
6254 let line_color = match (settings.coloring, indent_guide.active) {
6255 (IndentGuideColoring::Disabled, _) => None,
6256 (IndentGuideColoring::Fixed, false) => {
6257 Some(cx.theme().colors().editor_indent_guide)
6258 }
6259 (IndentGuideColoring::Fixed, true) => {
6260 Some(cx.theme().colors().editor_indent_guide_active)
6261 }
6262 (IndentGuideColoring::IndentAware, false) => {
6263 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
6264 }
6265 (IndentGuideColoring::IndentAware, true) => {
6266 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
6267 }
6268 };
6269
6270 let background_color = match (settings.background_coloring, indent_guide.active) {
6271 (IndentGuideBackgroundColoring::Disabled, _) => None,
6272 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
6273 indent_accent_colors,
6274 INDENT_AWARE_BACKGROUND_ALPHA,
6275 )),
6276 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
6277 indent_accent_colors,
6278 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
6279 )),
6280 };
6281
6282 let requested_line_width = if indent_guide.active {
6283 settings.active_line_width
6284 } else {
6285 settings.line_width
6286 }
6287 .clamp(1, 10);
6288 let mut line_indicator_width = 0.;
6289 if let Some(color) = line_color {
6290 window.paint_quad(fill(
6291 Bounds {
6292 origin: indent_guide.origin,
6293 size: size(px(requested_line_width as f32), indent_guide.length),
6294 },
6295 color,
6296 ));
6297 line_indicator_width = requested_line_width as f32;
6298 }
6299
6300 if let Some(color) = background_color {
6301 let width = indent_guide.single_indent_width - px(line_indicator_width);
6302 window.paint_quad(fill(
6303 Bounds {
6304 origin: point(
6305 indent_guide.origin.x + px(line_indicator_width),
6306 indent_guide.origin.y,
6307 ),
6308 size: size(width, indent_guide.length),
6309 },
6310 color,
6311 ));
6312 }
6313 }
6314 }
6315
6316 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6317 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
6318
6319 let line_height = layout.position_map.line_height;
6320 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
6321
6322 for line_layout in layout.line_numbers.values() {
6323 for LineNumberSegment {
6324 shaped_line,
6325 hitbox,
6326 } in &line_layout.segments
6327 {
6328 let Some(hitbox) = hitbox else {
6329 continue;
6330 };
6331
6332 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
6333 let color = cx.theme().colors().editor_hover_line_number;
6334
6335 let line = self.shape_line_number(shaped_line.text.clone(), color, window);
6336 line.paint(
6337 hitbox.origin,
6338 line_height,
6339 TextAlign::Left,
6340 None,
6341 window,
6342 cx,
6343 )
6344 .log_err()
6345 } else {
6346 shaped_line
6347 .paint(
6348 hitbox.origin,
6349 line_height,
6350 TextAlign::Left,
6351 None,
6352 window,
6353 cx,
6354 )
6355 .log_err()
6356 }) else {
6357 continue;
6358 };
6359
6360 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
6361 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
6362 if is_singleton {
6363 window.set_cursor_style(CursorStyle::IBeam, hitbox);
6364 } else {
6365 window.set_cursor_style(CursorStyle::PointingHand, hitbox);
6366 }
6367 }
6368 }
6369 }
6370
6371 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6372 if layout.display_hunks.is_empty() {
6373 return;
6374 }
6375
6376 let line_height = layout.position_map.line_height;
6377 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6378 for (hunk, hitbox) in &layout.display_hunks {
6379 let hunk_to_paint = match hunk {
6380 DisplayDiffHunk::Folded { .. } => {
6381 let hunk_bounds = Self::diff_hunk_bounds(
6382 &layout.position_map.snapshot,
6383 line_height,
6384 layout.gutter_hitbox.bounds,
6385 hunk,
6386 );
6387 Some((
6388 hunk_bounds,
6389 cx.theme().colors().version_control_modified,
6390 Corners::all(px(0.)),
6391 DiffHunkStatus::modified_none(),
6392 ))
6393 }
6394 DisplayDiffHunk::Unfolded {
6395 status,
6396 display_row_range,
6397 ..
6398 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
6399 DiffHunkStatusKind::Added => (
6400 hunk_hitbox.bounds,
6401 cx.theme().colors().version_control_added,
6402 Corners::all(px(0.)),
6403 *status,
6404 ),
6405 DiffHunkStatusKind::Modified => (
6406 hunk_hitbox.bounds,
6407 cx.theme().colors().version_control_modified,
6408 Corners::all(px(0.)),
6409 *status,
6410 ),
6411 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
6412 hunk_hitbox.bounds,
6413 cx.theme().colors().version_control_deleted,
6414 Corners::all(px(0.)),
6415 *status,
6416 ),
6417 DiffHunkStatusKind::Deleted => (
6418 Bounds::new(
6419 point(
6420 hunk_hitbox.origin.x - hunk_hitbox.size.width,
6421 hunk_hitbox.origin.y,
6422 ),
6423 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
6424 ),
6425 cx.theme().colors().version_control_deleted,
6426 Corners::all(1. * line_height),
6427 *status,
6428 ),
6429 }),
6430 };
6431
6432 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
6433 // Flatten the background color with the editor color to prevent
6434 // elements below transparent hunks from showing through
6435 let flattened_background_color = cx
6436 .theme()
6437 .colors()
6438 .editor_background
6439 .blend(background_color);
6440
6441 if !Self::diff_hunk_hollow(status, cx) {
6442 window.paint_quad(quad(
6443 hunk_bounds,
6444 corner_radii,
6445 flattened_background_color,
6446 Edges::default(),
6447 transparent_black(),
6448 BorderStyle::default(),
6449 ));
6450 } else {
6451 let flattened_unstaged_background_color = cx
6452 .theme()
6453 .colors()
6454 .editor_background
6455 .blend(background_color.opacity(0.3));
6456
6457 window.paint_quad(quad(
6458 hunk_bounds,
6459 corner_radii,
6460 flattened_unstaged_background_color,
6461 Edges::all(px(1.0)),
6462 flattened_background_color,
6463 BorderStyle::Solid,
6464 ));
6465 }
6466 }
6467 }
6468 });
6469 }
6470
6471 fn gutter_strip_width(line_height: Pixels) -> Pixels {
6472 (0.275 * line_height).floor()
6473 }
6474
6475 fn diff_hunk_bounds(
6476 snapshot: &EditorSnapshot,
6477 line_height: Pixels,
6478 gutter_bounds: Bounds<Pixels>,
6479 hunk: &DisplayDiffHunk,
6480 ) -> Bounds<Pixels> {
6481 let scroll_position = snapshot.scroll_position();
6482 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
6483 let gutter_strip_width = Self::gutter_strip_width(line_height);
6484
6485 match hunk {
6486 DisplayDiffHunk::Folded { display_row, .. } => {
6487 let start_y = (display_row.as_f64() * ScrollPixelOffset::from(line_height)
6488 - scroll_top)
6489 .into();
6490 let end_y = start_y + line_height;
6491 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6492 let highlight_size = size(gutter_strip_width, end_y - start_y);
6493 Bounds::new(highlight_origin, highlight_size)
6494 }
6495 DisplayDiffHunk::Unfolded {
6496 display_row_range,
6497 status,
6498 ..
6499 } => {
6500 if status.is_deleted() && display_row_range.is_empty() {
6501 let row = display_row_range.start;
6502
6503 let offset = ScrollPixelOffset::from(line_height / 2.);
6504 let start_y =
6505 (row.as_f64() * ScrollPixelOffset::from(line_height) - offset - scroll_top)
6506 .into();
6507 let end_y = start_y + line_height;
6508
6509 let width = (0.35 * line_height).floor();
6510 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6511 let highlight_size = size(width, end_y - start_y);
6512 Bounds::new(highlight_origin, highlight_size)
6513 } else {
6514 let start_row = display_row_range.start;
6515 let end_row = display_row_range.end;
6516 // If we're in a multibuffer, row range span might include an
6517 // excerpt header, so if we were to draw the marker straight away,
6518 // the hunk might include the rows of that header.
6519 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
6520 // Instead, we simply check whether the range we're dealing with includes
6521 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
6522 let end_row_in_current_excerpt = snapshot
6523 .blocks_in_range(start_row..end_row)
6524 .find_map(|(start_row, block)| {
6525 if matches!(
6526 block,
6527 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
6528 ) {
6529 Some(start_row)
6530 } else {
6531 None
6532 }
6533 })
6534 .unwrap_or(end_row);
6535
6536 let start_y = (start_row.as_f64() * ScrollPixelOffset::from(line_height)
6537 - scroll_top)
6538 .into();
6539 let end_y = Pixels::from(
6540 end_row_in_current_excerpt.as_f64() * ScrollPixelOffset::from(line_height)
6541 - scroll_top,
6542 );
6543
6544 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6545 let highlight_size = size(gutter_strip_width, end_y - start_y);
6546 Bounds::new(highlight_origin, highlight_size)
6547 }
6548 }
6549 }
6550 }
6551
6552 fn paint_gutter_indicators(
6553 &self,
6554 layout: &mut EditorLayout,
6555 window: &mut Window,
6556 cx: &mut App,
6557 ) {
6558 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6559 window.with_element_namespace("crease_toggles", |window| {
6560 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
6561 crease_toggle.paint(window, cx);
6562 }
6563 });
6564
6565 window.with_element_namespace("expand_toggles", |window| {
6566 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
6567 expand_toggle.paint(window, cx);
6568 }
6569 });
6570
6571 for breakpoint in layout.breakpoints.iter_mut() {
6572 breakpoint.paint(window, cx);
6573 }
6574
6575 for test_indicator in layout.test_indicators.iter_mut() {
6576 test_indicator.paint(window, cx);
6577 }
6578
6579 if let Some(diff_review_button) = layout.diff_review_button.as_mut() {
6580 diff_review_button.paint(window, cx);
6581 }
6582 });
6583 }
6584
6585 fn paint_gutter_highlights(
6586 &self,
6587 layout: &mut EditorLayout,
6588 window: &mut Window,
6589 cx: &mut App,
6590 ) {
6591 for (_, hunk_hitbox) in &layout.display_hunks {
6592 if let Some(hunk_hitbox) = hunk_hitbox
6593 && !self
6594 .editor
6595 .read(cx)
6596 .buffer()
6597 .read(cx)
6598 .all_diff_hunks_expanded()
6599 {
6600 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
6601 }
6602 }
6603
6604 let show_git_gutter = layout
6605 .position_map
6606 .snapshot
6607 .show_git_diff_gutter
6608 .unwrap_or_else(|| {
6609 matches!(
6610 ProjectSettings::get_global(cx).git.git_gutter,
6611 GitGutterSetting::TrackedFiles
6612 )
6613 });
6614 if show_git_gutter {
6615 Self::paint_gutter_diff_hunks(layout, window, cx)
6616 }
6617
6618 let highlight_width = 0.275 * layout.position_map.line_height;
6619 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
6620 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6621 for (range, color) in &layout.highlighted_gutter_ranges {
6622 let start_row = if range.start.row() < layout.visible_display_row_range.start {
6623 layout.visible_display_row_range.start - DisplayRow(1)
6624 } else {
6625 range.start.row()
6626 };
6627 let end_row = if range.end.row() > layout.visible_display_row_range.end {
6628 layout.visible_display_row_range.end + DisplayRow(1)
6629 } else {
6630 range.end.row()
6631 };
6632
6633 let start_y = layout.gutter_hitbox.top()
6634 + Pixels::from(
6635 start_row.0 as f64
6636 * ScrollPixelOffset::from(layout.position_map.line_height)
6637 - layout.position_map.scroll_pixel_position.y,
6638 );
6639 let end_y = layout.gutter_hitbox.top()
6640 + Pixels::from(
6641 (end_row.0 + 1) as f64
6642 * ScrollPixelOffset::from(layout.position_map.line_height)
6643 - layout.position_map.scroll_pixel_position.y,
6644 );
6645 let bounds = Bounds::from_corners(
6646 point(layout.gutter_hitbox.left(), start_y),
6647 point(layout.gutter_hitbox.left() + highlight_width, end_y),
6648 );
6649 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
6650 }
6651 });
6652 }
6653
6654 fn paint_blamed_display_rows(
6655 &self,
6656 layout: &mut EditorLayout,
6657 window: &mut Window,
6658 cx: &mut App,
6659 ) {
6660 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
6661 return;
6662 };
6663
6664 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6665 for mut blame_element in blamed_display_rows.into_iter() {
6666 blame_element.paint(window, cx);
6667 }
6668 })
6669 }
6670
6671 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6672 window.with_content_mask(
6673 Some(ContentMask {
6674 bounds: layout.position_map.text_hitbox.bounds,
6675 }),
6676 |window| {
6677 let editor = self.editor.read(cx);
6678 if editor.mouse_cursor_hidden {
6679 window.set_window_cursor_style(CursorStyle::None);
6680 } else if let SelectionDragState::ReadyToDrag {
6681 mouse_down_time, ..
6682 } = &editor.selection_drag_state
6683 {
6684 let drag_and_drop_delay = Duration::from_millis(
6685 EditorSettings::get_global(cx)
6686 .drag_and_drop_selection
6687 .delay
6688 .0,
6689 );
6690 if mouse_down_time.elapsed() >= drag_and_drop_delay {
6691 window.set_cursor_style(
6692 CursorStyle::DragCopy,
6693 &layout.position_map.text_hitbox,
6694 );
6695 }
6696 } else if matches!(
6697 editor.selection_drag_state,
6698 SelectionDragState::Dragging { .. }
6699 ) {
6700 window
6701 .set_cursor_style(CursorStyle::DragCopy, &layout.position_map.text_hitbox);
6702 } else if editor
6703 .hovered_link_state
6704 .as_ref()
6705 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
6706 {
6707 window.set_cursor_style(
6708 CursorStyle::PointingHand,
6709 &layout.position_map.text_hitbox,
6710 );
6711 } else {
6712 window.set_cursor_style(CursorStyle::IBeam, &layout.position_map.text_hitbox);
6713 };
6714
6715 self.paint_lines_background(layout, window, cx);
6716 let invisible_display_ranges = self.paint_highlights(layout, window, cx);
6717 self.paint_document_colors(layout, window);
6718 self.paint_lines(&invisible_display_ranges, layout, window, cx);
6719 self.paint_redactions(layout, window);
6720 self.paint_cursors(layout, window, cx);
6721 self.paint_inline_diagnostics(layout, window, cx);
6722 self.paint_inline_blame(layout, window, cx);
6723 self.paint_inline_code_actions(layout, window, cx);
6724 self.paint_diff_hunk_controls(layout, window, cx);
6725 window.with_element_namespace("crease_trailers", |window| {
6726 for trailer in layout.crease_trailers.iter_mut().flatten() {
6727 trailer.element.paint(window, cx);
6728 }
6729 });
6730 },
6731 )
6732 }
6733
6734 fn paint_highlights(
6735 &mut self,
6736 layout: &mut EditorLayout,
6737 window: &mut Window,
6738 cx: &mut App,
6739 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
6740 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6741 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
6742 let line_end_overshoot = 0.15 * layout.position_map.line_height;
6743 for (range, color) in &layout.highlighted_ranges {
6744 self.paint_highlighted_range(
6745 range.clone(),
6746 true,
6747 *color,
6748 Pixels::ZERO,
6749 line_end_overshoot,
6750 layout,
6751 window,
6752 );
6753 }
6754
6755 let corner_radius = if EditorSettings::get_global(cx).rounded_selection {
6756 0.15 * layout.position_map.line_height
6757 } else {
6758 Pixels::ZERO
6759 };
6760
6761 for (player_color, selections) in &layout.selections {
6762 for selection in selections.iter() {
6763 self.paint_highlighted_range(
6764 selection.range.clone(),
6765 true,
6766 player_color.selection,
6767 corner_radius,
6768 corner_radius * 2.,
6769 layout,
6770 window,
6771 );
6772
6773 if selection.is_local && !selection.range.is_empty() {
6774 invisible_display_ranges.push(selection.range.clone());
6775 }
6776 }
6777 }
6778 invisible_display_ranges
6779 })
6780 }
6781
6782 fn paint_lines(
6783 &mut self,
6784 invisible_display_ranges: &[Range<DisplayPoint>],
6785 layout: &mut EditorLayout,
6786 window: &mut Window,
6787 cx: &mut App,
6788 ) {
6789 let whitespace_setting = self
6790 .editor
6791 .read(cx)
6792 .buffer
6793 .read(cx)
6794 .language_settings(cx)
6795 .show_whitespaces;
6796
6797 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6798 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6799 line_with_invisibles.draw(
6800 layout,
6801 row,
6802 layout.content_origin,
6803 whitespace_setting,
6804 invisible_display_ranges,
6805 window,
6806 cx,
6807 )
6808 }
6809
6810 for line_element in &mut layout.line_elements {
6811 line_element.paint(window, cx);
6812 }
6813 }
6814
6815 fn paint_sticky_headers(
6816 &mut self,
6817 layout: &mut EditorLayout,
6818 window: &mut Window,
6819 cx: &mut App,
6820 ) {
6821 let Some(mut sticky_headers) = layout.sticky_headers.take() else {
6822 return;
6823 };
6824
6825 if sticky_headers.lines.is_empty() {
6826 layout.sticky_headers = Some(sticky_headers);
6827 return;
6828 }
6829
6830 let whitespace_setting = self
6831 .editor
6832 .read(cx)
6833 .buffer
6834 .read(cx)
6835 .language_settings(cx)
6836 .show_whitespaces;
6837 sticky_headers.paint(layout, whitespace_setting, window, cx);
6838
6839 let sticky_header_hitboxes: Vec<Hitbox> = sticky_headers
6840 .lines
6841 .iter()
6842 .map(|line| line.hitbox.clone())
6843 .collect();
6844 let hovered_hitbox = sticky_header_hitboxes
6845 .iter()
6846 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6847
6848 window.on_mouse_event(move |_: &MouseMoveEvent, phase, window, _cx| {
6849 if !phase.bubble() {
6850 return;
6851 }
6852
6853 let current_hover = sticky_header_hitboxes
6854 .iter()
6855 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6856 if hovered_hitbox != current_hover {
6857 window.refresh();
6858 }
6859 });
6860
6861 for (line_index, line) in sticky_headers.lines.iter().enumerate() {
6862 let editor = self.editor.clone();
6863 let hitbox = line.hitbox.clone();
6864 let target_anchor = line.target_anchor;
6865 window.on_mouse_event(move |event: &MouseDownEvent, phase, window, cx| {
6866 if !phase.bubble() {
6867 return;
6868 }
6869
6870 if event.button == MouseButton::Left && hitbox.is_hovered(window) {
6871 editor.update(cx, |editor, cx| {
6872 editor.change_selections(
6873 SelectionEffects::scroll(Autoscroll::top_relative(line_index)),
6874 window,
6875 cx,
6876 |selections| selections.select_ranges([target_anchor..target_anchor]),
6877 );
6878 cx.stop_propagation();
6879 });
6880 }
6881 });
6882 }
6883
6884 let text_bounds = layout.position_map.text_hitbox.bounds;
6885 let border_top = text_bounds.top()
6886 + sticky_headers.lines.last().unwrap().offset
6887 + layout.position_map.line_height;
6888 let separator_height = px(1.);
6889 let border_bounds = Bounds::from_corners(
6890 point(layout.gutter_hitbox.bounds.left(), border_top),
6891 point(text_bounds.right(), border_top + separator_height),
6892 );
6893 window.paint_quad(fill(border_bounds, cx.theme().colors().border_variant));
6894
6895 layout.sticky_headers = Some(sticky_headers);
6896 }
6897
6898 fn paint_lines_background(
6899 &mut self,
6900 layout: &mut EditorLayout,
6901 window: &mut Window,
6902 cx: &mut App,
6903 ) {
6904 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6905 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6906 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
6907 }
6908 }
6909
6910 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
6911 if layout.redacted_ranges.is_empty() {
6912 return;
6913 }
6914
6915 let line_end_overshoot = layout.line_end_overshoot();
6916
6917 // A softer than perfect black
6918 let redaction_color = gpui::rgb(0x0e1111);
6919
6920 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6921 for range in layout.redacted_ranges.iter() {
6922 self.paint_highlighted_range(
6923 range.clone(),
6924 true,
6925 redaction_color.into(),
6926 Pixels::ZERO,
6927 line_end_overshoot,
6928 layout,
6929 window,
6930 );
6931 }
6932 });
6933 }
6934
6935 fn paint_document_colors(&self, layout: &mut EditorLayout, window: &mut Window) {
6936 let Some((colors_render_mode, image_colors)) = &layout.document_colors else {
6937 return;
6938 };
6939 if image_colors.is_empty()
6940 || colors_render_mode == &DocumentColorsRenderMode::None
6941 || colors_render_mode == &DocumentColorsRenderMode::Inlay
6942 {
6943 return;
6944 }
6945
6946 let line_end_overshoot = layout.line_end_overshoot();
6947
6948 for (range, color) in image_colors {
6949 match colors_render_mode {
6950 DocumentColorsRenderMode::Inlay | DocumentColorsRenderMode::None => return,
6951 DocumentColorsRenderMode::Background => {
6952 self.paint_highlighted_range(
6953 range.clone(),
6954 true,
6955 *color,
6956 Pixels::ZERO,
6957 line_end_overshoot,
6958 layout,
6959 window,
6960 );
6961 }
6962 DocumentColorsRenderMode::Border => {
6963 self.paint_highlighted_range(
6964 range.clone(),
6965 false,
6966 *color,
6967 Pixels::ZERO,
6968 line_end_overshoot,
6969 layout,
6970 window,
6971 );
6972 }
6973 }
6974 }
6975 }
6976
6977 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6978 for cursor in &mut layout.visible_cursors {
6979 cursor.paint(layout.content_origin, window, cx);
6980 }
6981 }
6982
6983 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6984 let Some(scrollbars_layout) = layout.scrollbars_layout.take() else {
6985 return;
6986 };
6987 let any_scrollbar_dragged = self.editor.read(cx).scroll_manager.any_scrollbar_dragged();
6988
6989 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
6990 let hitbox = &scrollbar_layout.hitbox;
6991 if scrollbars_layout.visible {
6992 let scrollbar_edges = match axis {
6993 ScrollbarAxis::Horizontal => Edges {
6994 top: Pixels::ZERO,
6995 right: Pixels::ZERO,
6996 bottom: Pixels::ZERO,
6997 left: Pixels::ZERO,
6998 },
6999 ScrollbarAxis::Vertical => Edges {
7000 top: Pixels::ZERO,
7001 right: Pixels::ZERO,
7002 bottom: Pixels::ZERO,
7003 left: ScrollbarLayout::BORDER_WIDTH,
7004 },
7005 };
7006
7007 window.paint_layer(hitbox.bounds, |window| {
7008 window.paint_quad(quad(
7009 hitbox.bounds,
7010 Corners::default(),
7011 cx.theme().colors().scrollbar_track_background,
7012 scrollbar_edges,
7013 cx.theme().colors().scrollbar_track_border,
7014 BorderStyle::Solid,
7015 ));
7016
7017 if axis == ScrollbarAxis::Vertical {
7018 let fast_markers =
7019 self.collect_fast_scrollbar_markers(layout, scrollbar_layout, cx);
7020 // Refresh slow scrollbar markers in the background. Below, we
7021 // paint whatever markers have already been computed.
7022 self.refresh_slow_scrollbar_markers(layout, scrollbar_layout, window, cx);
7023
7024 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
7025 for marker in markers.iter().chain(&fast_markers) {
7026 let mut marker = marker.clone();
7027 marker.bounds.origin += hitbox.origin;
7028 window.paint_quad(marker);
7029 }
7030 }
7031
7032 if let Some(thumb_bounds) = scrollbar_layout.thumb_bounds {
7033 let scrollbar_thumb_color = match scrollbar_layout.thumb_state {
7034 ScrollbarThumbState::Dragging => {
7035 cx.theme().colors().scrollbar_thumb_active_background
7036 }
7037 ScrollbarThumbState::Hovered => {
7038 cx.theme().colors().scrollbar_thumb_hover_background
7039 }
7040 ScrollbarThumbState::Idle => {
7041 cx.theme().colors().scrollbar_thumb_background
7042 }
7043 };
7044 window.paint_quad(quad(
7045 thumb_bounds,
7046 Corners::default(),
7047 scrollbar_thumb_color,
7048 scrollbar_edges,
7049 cx.theme().colors().scrollbar_thumb_border,
7050 BorderStyle::Solid,
7051 ));
7052
7053 if any_scrollbar_dragged {
7054 window.set_window_cursor_style(CursorStyle::Arrow);
7055 } else {
7056 window.set_cursor_style(CursorStyle::Arrow, hitbox);
7057 }
7058 }
7059 })
7060 }
7061 }
7062
7063 window.on_mouse_event({
7064 let editor = self.editor.clone();
7065 let scrollbars_layout = scrollbars_layout.clone();
7066
7067 let mut mouse_position = window.mouse_position();
7068 move |event: &MouseMoveEvent, phase, window, cx| {
7069 if phase == DispatchPhase::Capture {
7070 return;
7071 }
7072
7073 editor.update(cx, |editor, cx| {
7074 if let Some((scrollbar_layout, axis)) = event
7075 .pressed_button
7076 .filter(|button| *button == MouseButton::Left)
7077 .and(editor.scroll_manager.dragging_scrollbar_axis())
7078 .and_then(|axis| {
7079 scrollbars_layout
7080 .iter_scrollbars()
7081 .find(|(_, a)| *a == axis)
7082 })
7083 {
7084 let ScrollbarLayout {
7085 hitbox,
7086 text_unit_size,
7087 ..
7088 } = scrollbar_layout;
7089
7090 let old_position = mouse_position.along(axis);
7091 let new_position = event.position.along(axis);
7092 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
7093 .contains(&old_position)
7094 {
7095 let position = editor.scroll_position(cx).apply_along(axis, |p| {
7096 (p + ScrollOffset::from(
7097 (new_position - old_position) / *text_unit_size,
7098 ))
7099 .max(0.)
7100 });
7101 editor.set_scroll_position(position, window, cx);
7102 }
7103
7104 editor.scroll_manager.show_scrollbars(window, cx);
7105 cx.stop_propagation();
7106 } else if let Some((layout, axis)) = scrollbars_layout
7107 .get_hovered_axis(window)
7108 .filter(|_| !event.dragging())
7109 {
7110 if layout.thumb_hovered(&event.position) {
7111 editor
7112 .scroll_manager
7113 .set_hovered_scroll_thumb_axis(axis, cx);
7114 } else {
7115 editor.scroll_manager.reset_scrollbar_state(cx);
7116 }
7117
7118 editor.scroll_manager.show_scrollbars(window, cx);
7119 } else {
7120 editor.scroll_manager.reset_scrollbar_state(cx);
7121 }
7122
7123 mouse_position = event.position;
7124 })
7125 }
7126 });
7127
7128 if any_scrollbar_dragged {
7129 window.on_mouse_event({
7130 let editor = self.editor.clone();
7131 move |_: &MouseUpEvent, phase, window, cx| {
7132 if phase == DispatchPhase::Capture {
7133 return;
7134 }
7135
7136 editor.update(cx, |editor, cx| {
7137 if let Some((_, axis)) = scrollbars_layout.get_hovered_axis(window) {
7138 editor
7139 .scroll_manager
7140 .set_hovered_scroll_thumb_axis(axis, cx);
7141 } else {
7142 editor.scroll_manager.reset_scrollbar_state(cx);
7143 }
7144 cx.stop_propagation();
7145 });
7146 }
7147 });
7148 } else {
7149 window.on_mouse_event({
7150 let editor = self.editor.clone();
7151
7152 move |event: &MouseDownEvent, phase, window, cx| {
7153 if phase == DispatchPhase::Capture {
7154 return;
7155 }
7156 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
7157 else {
7158 return;
7159 };
7160
7161 let ScrollbarLayout {
7162 hitbox,
7163 visible_range,
7164 text_unit_size,
7165 thumb_bounds,
7166 ..
7167 } = scrollbar_layout;
7168
7169 let Some(thumb_bounds) = thumb_bounds else {
7170 return;
7171 };
7172
7173 editor.update(cx, |editor, cx| {
7174 editor
7175 .scroll_manager
7176 .set_dragged_scroll_thumb_axis(axis, cx);
7177
7178 let event_position = event.position.along(axis);
7179
7180 if event_position < thumb_bounds.origin.along(axis)
7181 || thumb_bounds.bottom_right().along(axis) < event_position
7182 {
7183 let center_position = ((event_position - hitbox.origin.along(axis))
7184 / *text_unit_size)
7185 .round() as u32;
7186 let start_position = center_position.saturating_sub(
7187 (visible_range.end - visible_range.start) as u32 / 2,
7188 );
7189
7190 let position = editor
7191 .scroll_position(cx)
7192 .apply_along(axis, |_| start_position as ScrollOffset);
7193
7194 editor.set_scroll_position(position, window, cx);
7195 } else {
7196 editor.scroll_manager.show_scrollbars(window, cx);
7197 }
7198
7199 cx.stop_propagation();
7200 });
7201 }
7202 });
7203 }
7204 }
7205
7206 fn collect_fast_scrollbar_markers(
7207 &self,
7208 layout: &EditorLayout,
7209 scrollbar_layout: &ScrollbarLayout,
7210 cx: &mut App,
7211 ) -> Vec<PaintQuad> {
7212 const LIMIT: usize = 100;
7213 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
7214 return vec![];
7215 }
7216 let cursor_ranges = layout
7217 .cursors
7218 .iter()
7219 .map(|(point, color)| ColoredRange {
7220 start: point.row(),
7221 end: point.row(),
7222 color: *color,
7223 })
7224 .collect_vec();
7225 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
7226 }
7227
7228 fn refresh_slow_scrollbar_markers(
7229 &self,
7230 layout: &EditorLayout,
7231 scrollbar_layout: &ScrollbarLayout,
7232 window: &mut Window,
7233 cx: &mut App,
7234 ) {
7235 self.editor.update(cx, |editor, cx| {
7236 if editor.buffer_kind(cx) != ItemBufferKind::Singleton
7237 || !editor
7238 .scrollbar_marker_state
7239 .should_refresh(scrollbar_layout.hitbox.size)
7240 {
7241 return;
7242 }
7243
7244 let scrollbar_layout = scrollbar_layout.clone();
7245 let background_highlights = editor.background_highlights.clone();
7246 let snapshot = layout.position_map.snapshot.clone();
7247 let theme = cx.theme().clone();
7248 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
7249
7250 editor.scrollbar_marker_state.dirty = false;
7251 editor.scrollbar_marker_state.pending_refresh =
7252 Some(cx.spawn_in(window, async move |editor, cx| {
7253 let scrollbar_size = scrollbar_layout.hitbox.size;
7254 let scrollbar_markers = cx
7255 .background_spawn(async move {
7256 let max_point = snapshot.display_snapshot.buffer_snapshot().max_point();
7257 let mut marker_quads = Vec::new();
7258 if scrollbar_settings.git_diff {
7259 let marker_row_ranges =
7260 snapshot.buffer_snapshot().diff_hunks().map(|hunk| {
7261 let start_display_row =
7262 MultiBufferPoint::new(hunk.row_range.start.0, 0)
7263 .to_display_point(&snapshot.display_snapshot)
7264 .row();
7265 let mut end_display_row =
7266 MultiBufferPoint::new(hunk.row_range.end.0, 0)
7267 .to_display_point(&snapshot.display_snapshot)
7268 .row();
7269 if end_display_row != start_display_row {
7270 end_display_row.0 -= 1;
7271 }
7272 let color = match &hunk.status().kind {
7273 DiffHunkStatusKind::Added => {
7274 theme.colors().version_control_added
7275 }
7276 DiffHunkStatusKind::Modified => {
7277 theme.colors().version_control_modified
7278 }
7279 DiffHunkStatusKind::Deleted => {
7280 theme.colors().version_control_deleted
7281 }
7282 };
7283 ColoredRange {
7284 start: start_display_row,
7285 end: end_display_row,
7286 color,
7287 }
7288 });
7289
7290 marker_quads.extend(
7291 scrollbar_layout
7292 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
7293 );
7294 }
7295
7296 for (background_highlight_id, (_, background_ranges)) in
7297 background_highlights.iter()
7298 {
7299 let is_search_highlights = *background_highlight_id
7300 == HighlightKey::Type(TypeId::of::<BufferSearchHighlights>());
7301 let is_text_highlights = *background_highlight_id
7302 == HighlightKey::Type(TypeId::of::<SelectedTextHighlight>());
7303 let is_symbol_occurrences = *background_highlight_id
7304 == HighlightKey::Type(TypeId::of::<DocumentHighlightRead>())
7305 || *background_highlight_id
7306 == HighlightKey::Type(
7307 TypeId::of::<DocumentHighlightWrite>(),
7308 );
7309 if (is_search_highlights && scrollbar_settings.search_results)
7310 || (is_text_highlights && scrollbar_settings.selected_text)
7311 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
7312 {
7313 let mut color = theme.status().info;
7314 if is_symbol_occurrences {
7315 color.fade_out(0.5);
7316 }
7317 let marker_row_ranges = background_ranges.iter().map(|range| {
7318 let display_start = range
7319 .start
7320 .to_display_point(&snapshot.display_snapshot);
7321 let display_end =
7322 range.end.to_display_point(&snapshot.display_snapshot);
7323 ColoredRange {
7324 start: display_start.row(),
7325 end: display_end.row(),
7326 color,
7327 }
7328 });
7329 marker_quads.extend(
7330 scrollbar_layout
7331 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
7332 );
7333 }
7334 }
7335
7336 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
7337 let diagnostics = snapshot
7338 .buffer_snapshot()
7339 .diagnostics_in_range::<Point>(Point::zero()..max_point)
7340 // Don't show diagnostics the user doesn't care about
7341 .filter(|diagnostic| {
7342 match (
7343 scrollbar_settings.diagnostics,
7344 diagnostic.diagnostic.severity,
7345 ) {
7346 (ScrollbarDiagnostics::All, _) => true,
7347 (
7348 ScrollbarDiagnostics::Error,
7349 lsp::DiagnosticSeverity::ERROR,
7350 ) => true,
7351 (
7352 ScrollbarDiagnostics::Warning,
7353 lsp::DiagnosticSeverity::ERROR
7354 | lsp::DiagnosticSeverity::WARNING,
7355 ) => true,
7356 (
7357 ScrollbarDiagnostics::Information,
7358 lsp::DiagnosticSeverity::ERROR
7359 | lsp::DiagnosticSeverity::WARNING
7360 | lsp::DiagnosticSeverity::INFORMATION,
7361 ) => true,
7362 (_, _) => false,
7363 }
7364 })
7365 // We want to sort by severity, in order to paint the most severe diagnostics last.
7366 .sorted_by_key(|diagnostic| {
7367 std::cmp::Reverse(diagnostic.diagnostic.severity)
7368 });
7369
7370 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
7371 let start_display = diagnostic
7372 .range
7373 .start
7374 .to_display_point(&snapshot.display_snapshot);
7375 let end_display = diagnostic
7376 .range
7377 .end
7378 .to_display_point(&snapshot.display_snapshot);
7379 let color = match diagnostic.diagnostic.severity {
7380 lsp::DiagnosticSeverity::ERROR => theme.status().error,
7381 lsp::DiagnosticSeverity::WARNING => theme.status().warning,
7382 lsp::DiagnosticSeverity::INFORMATION => theme.status().info,
7383 _ => theme.status().hint,
7384 };
7385 ColoredRange {
7386 start: start_display.row(),
7387 end: end_display.row(),
7388 color,
7389 }
7390 });
7391 marker_quads.extend(
7392 scrollbar_layout
7393 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
7394 );
7395 }
7396
7397 Arc::from(marker_quads)
7398 })
7399 .await;
7400
7401 editor.update(cx, |editor, cx| {
7402 editor.scrollbar_marker_state.markers = scrollbar_markers;
7403 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
7404 editor.scrollbar_marker_state.pending_refresh = None;
7405 cx.notify();
7406 })?;
7407
7408 Ok(())
7409 }));
7410 });
7411 }
7412
7413 fn paint_highlighted_range(
7414 &self,
7415 range: Range<DisplayPoint>,
7416 fill: bool,
7417 color: Hsla,
7418 corner_radius: Pixels,
7419 line_end_overshoot: Pixels,
7420 layout: &EditorLayout,
7421 window: &mut Window,
7422 ) {
7423 let start_row = layout.visible_display_row_range.start;
7424 let end_row = layout.visible_display_row_range.end;
7425 if range.start != range.end {
7426 let row_range = if range.end.column() == 0 {
7427 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
7428 } else {
7429 cmp::max(range.start.row(), start_row)
7430 ..cmp::min(range.end.row().next_row(), end_row)
7431 };
7432
7433 let highlighted_range = HighlightedRange {
7434 color,
7435 line_height: layout.position_map.line_height,
7436 corner_radius,
7437 start_y: layout.content_origin.y
7438 + Pixels::from(
7439 (row_range.start.as_f64() - layout.position_map.scroll_position.y)
7440 * ScrollOffset::from(layout.position_map.line_height),
7441 ),
7442 lines: row_range
7443 .iter_rows()
7444 .map(|row| {
7445 let line_layout =
7446 &layout.position_map.line_layouts[row.minus(start_row) as usize];
7447 let alignment_offset =
7448 line_layout.alignment_offset(layout.text_align, layout.content_width);
7449 HighlightedRangeLine {
7450 start_x: if row == range.start.row() {
7451 layout.content_origin.x
7452 + Pixels::from(
7453 ScrollPixelOffset::from(
7454 line_layout.x_for_index(range.start.column() as usize)
7455 + alignment_offset,
7456 ) - layout.position_map.scroll_pixel_position.x,
7457 )
7458 } else {
7459 layout.content_origin.x + alignment_offset
7460 - Pixels::from(layout.position_map.scroll_pixel_position.x)
7461 },
7462 end_x: if row == range.end.row() {
7463 layout.content_origin.x
7464 + Pixels::from(
7465 ScrollPixelOffset::from(
7466 line_layout.x_for_index(range.end.column() as usize)
7467 + alignment_offset,
7468 ) - layout.position_map.scroll_pixel_position.x,
7469 )
7470 } else {
7471 Pixels::from(
7472 ScrollPixelOffset::from(
7473 layout.content_origin.x
7474 + line_layout.width
7475 + alignment_offset
7476 + line_end_overshoot,
7477 ) - layout.position_map.scroll_pixel_position.x,
7478 )
7479 },
7480 }
7481 })
7482 .collect(),
7483 };
7484
7485 highlighted_range.paint(fill, layout.position_map.text_hitbox.bounds, window);
7486 }
7487 }
7488
7489 fn paint_inline_diagnostics(
7490 &mut self,
7491 layout: &mut EditorLayout,
7492 window: &mut Window,
7493 cx: &mut App,
7494 ) {
7495 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
7496 inline_diagnostic.1.paint(window, cx);
7497 }
7498 }
7499
7500 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7501 if let Some(mut blame_layout) = layout.inline_blame_layout.take() {
7502 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7503 blame_layout.element.paint(window, cx);
7504 })
7505 }
7506 }
7507
7508 fn paint_inline_code_actions(
7509 &mut self,
7510 layout: &mut EditorLayout,
7511 window: &mut Window,
7512 cx: &mut App,
7513 ) {
7514 if let Some(mut inline_code_actions) = layout.inline_code_actions.take() {
7515 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7516 inline_code_actions.paint(window, cx);
7517 })
7518 }
7519 }
7520
7521 fn paint_diff_hunk_controls(
7522 &mut self,
7523 layout: &mut EditorLayout,
7524 window: &mut Window,
7525 cx: &mut App,
7526 ) {
7527 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
7528 diff_hunk_control.paint(window, cx);
7529 }
7530 }
7531
7532 fn paint_minimap(&self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7533 if let Some(mut layout) = layout.minimap.take() {
7534 let minimap_hitbox = layout.thumb_layout.hitbox.clone();
7535 let dragging_minimap = self.editor.read(cx).scroll_manager.is_dragging_minimap();
7536
7537 window.paint_layer(layout.thumb_layout.hitbox.bounds, |window| {
7538 window.with_element_namespace("minimap", |window| {
7539 layout.minimap.paint(window, cx);
7540 if let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds {
7541 let minimap_thumb_color = match layout.thumb_layout.thumb_state {
7542 ScrollbarThumbState::Idle => {
7543 cx.theme().colors().minimap_thumb_background
7544 }
7545 ScrollbarThumbState::Hovered => {
7546 cx.theme().colors().minimap_thumb_hover_background
7547 }
7548 ScrollbarThumbState::Dragging => {
7549 cx.theme().colors().minimap_thumb_active_background
7550 }
7551 };
7552 let minimap_thumb_border = match layout.thumb_border_style {
7553 MinimapThumbBorder::Full => Edges::all(ScrollbarLayout::BORDER_WIDTH),
7554 MinimapThumbBorder::LeftOnly => Edges {
7555 left: ScrollbarLayout::BORDER_WIDTH,
7556 ..Default::default()
7557 },
7558 MinimapThumbBorder::LeftOpen => Edges {
7559 right: ScrollbarLayout::BORDER_WIDTH,
7560 top: ScrollbarLayout::BORDER_WIDTH,
7561 bottom: ScrollbarLayout::BORDER_WIDTH,
7562 ..Default::default()
7563 },
7564 MinimapThumbBorder::RightOpen => Edges {
7565 left: ScrollbarLayout::BORDER_WIDTH,
7566 top: ScrollbarLayout::BORDER_WIDTH,
7567 bottom: ScrollbarLayout::BORDER_WIDTH,
7568 ..Default::default()
7569 },
7570 MinimapThumbBorder::None => Default::default(),
7571 };
7572
7573 window.paint_layer(minimap_hitbox.bounds, |window| {
7574 window.paint_quad(quad(
7575 thumb_bounds,
7576 Corners::default(),
7577 minimap_thumb_color,
7578 minimap_thumb_border,
7579 cx.theme().colors().minimap_thumb_border,
7580 BorderStyle::Solid,
7581 ));
7582 });
7583 }
7584 });
7585 });
7586
7587 if dragging_minimap {
7588 window.set_window_cursor_style(CursorStyle::Arrow);
7589 } else {
7590 window.set_cursor_style(CursorStyle::Arrow, &minimap_hitbox);
7591 }
7592
7593 let minimap_axis = ScrollbarAxis::Vertical;
7594 let pixels_per_line = Pixels::from(
7595 ScrollPixelOffset::from(minimap_hitbox.size.height) / layout.max_scroll_top,
7596 )
7597 .min(layout.minimap_line_height);
7598
7599 let mut mouse_position = window.mouse_position();
7600
7601 window.on_mouse_event({
7602 let editor = self.editor.clone();
7603
7604 let minimap_hitbox = minimap_hitbox.clone();
7605
7606 move |event: &MouseMoveEvent, phase, window, cx| {
7607 if phase == DispatchPhase::Capture {
7608 return;
7609 }
7610
7611 editor.update(cx, |editor, cx| {
7612 if event.pressed_button == Some(MouseButton::Left)
7613 && editor.scroll_manager.is_dragging_minimap()
7614 {
7615 let old_position = mouse_position.along(minimap_axis);
7616 let new_position = event.position.along(minimap_axis);
7617 if (minimap_hitbox.origin.along(minimap_axis)
7618 ..minimap_hitbox.bottom_right().along(minimap_axis))
7619 .contains(&old_position)
7620 {
7621 let position =
7622 editor.scroll_position(cx).apply_along(minimap_axis, |p| {
7623 (p + ScrollPixelOffset::from(
7624 (new_position - old_position) / pixels_per_line,
7625 ))
7626 .max(0.)
7627 });
7628
7629 editor.set_scroll_position(position, window, cx);
7630 }
7631 cx.stop_propagation();
7632 } else if minimap_hitbox.is_hovered(window) {
7633 editor.scroll_manager.set_is_hovering_minimap_thumb(
7634 !event.dragging()
7635 && layout
7636 .thumb_layout
7637 .thumb_bounds
7638 .is_some_and(|bounds| bounds.contains(&event.position)),
7639 cx,
7640 );
7641
7642 // Stop hover events from propagating to the
7643 // underlying editor if the minimap hitbox is hovered
7644 if !event.dragging() {
7645 cx.stop_propagation();
7646 }
7647 } else {
7648 editor.scroll_manager.hide_minimap_thumb(cx);
7649 }
7650 mouse_position = event.position;
7651 });
7652 }
7653 });
7654
7655 if dragging_minimap {
7656 window.on_mouse_event({
7657 let editor = self.editor.clone();
7658 move |event: &MouseUpEvent, phase, window, cx| {
7659 if phase == DispatchPhase::Capture {
7660 return;
7661 }
7662
7663 editor.update(cx, |editor, cx| {
7664 if minimap_hitbox.is_hovered(window) {
7665 editor.scroll_manager.set_is_hovering_minimap_thumb(
7666 layout
7667 .thumb_layout
7668 .thumb_bounds
7669 .is_some_and(|bounds| bounds.contains(&event.position)),
7670 cx,
7671 );
7672 } else {
7673 editor.scroll_manager.hide_minimap_thumb(cx);
7674 }
7675 cx.stop_propagation();
7676 });
7677 }
7678 });
7679 } else {
7680 window.on_mouse_event({
7681 let editor = self.editor.clone();
7682
7683 move |event: &MouseDownEvent, phase, window, cx| {
7684 if phase == DispatchPhase::Capture || !minimap_hitbox.is_hovered(window) {
7685 return;
7686 }
7687
7688 let event_position = event.position;
7689
7690 let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds else {
7691 return;
7692 };
7693
7694 editor.update(cx, |editor, cx| {
7695 if !thumb_bounds.contains(&event_position) {
7696 let click_position =
7697 event_position.relative_to(&minimap_hitbox.origin).y;
7698
7699 let top_position = (click_position
7700 - thumb_bounds.size.along(minimap_axis) / 2.0)
7701 .max(Pixels::ZERO);
7702
7703 let scroll_offset = (layout.minimap_scroll_top
7704 + ScrollPixelOffset::from(
7705 top_position / layout.minimap_line_height,
7706 ))
7707 .min(layout.max_scroll_top);
7708
7709 let scroll_position = editor
7710 .scroll_position(cx)
7711 .apply_along(minimap_axis, |_| scroll_offset);
7712 editor.set_scroll_position(scroll_position, window, cx);
7713 }
7714
7715 editor.scroll_manager.set_is_dragging_minimap(cx);
7716 cx.stop_propagation();
7717 });
7718 }
7719 });
7720 }
7721 }
7722 }
7723
7724 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7725 for mut block in layout.blocks.drain(..) {
7726 if block.overlaps_gutter {
7727 block.element.paint(window, cx);
7728 } else {
7729 let mut bounds = layout.hitbox.bounds;
7730 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
7731 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7732 block.element.paint(window, cx);
7733 })
7734 }
7735 }
7736 }
7737
7738 fn paint_edit_prediction_popover(
7739 &mut self,
7740 layout: &mut EditorLayout,
7741 window: &mut Window,
7742 cx: &mut App,
7743 ) {
7744 if let Some(edit_prediction_popover) = layout.edit_prediction_popover.as_mut() {
7745 edit_prediction_popover.paint(window, cx);
7746 }
7747 }
7748
7749 fn paint_mouse_context_menu(
7750 &mut self,
7751 layout: &mut EditorLayout,
7752 window: &mut Window,
7753 cx: &mut App,
7754 ) {
7755 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
7756 mouse_context_menu.paint(window, cx);
7757 }
7758 }
7759
7760 fn paint_scroll_wheel_listener(
7761 &mut self,
7762 layout: &EditorLayout,
7763 window: &mut Window,
7764 cx: &mut App,
7765 ) {
7766 window.on_mouse_event({
7767 let position_map = layout.position_map.clone();
7768 let editor = self.editor.clone();
7769 let hitbox = layout.hitbox.clone();
7770 let mut delta = ScrollDelta::default();
7771
7772 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
7773 // accidentally turn off their scrolling.
7774 let base_scroll_sensitivity =
7775 EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
7776
7777 // Use a minimum fast_scroll_sensitivity for same reason above
7778 let fast_scroll_sensitivity = EditorSettings::get_global(cx)
7779 .fast_scroll_sensitivity
7780 .max(0.01);
7781
7782 move |event: &ScrollWheelEvent, phase, window, cx| {
7783 let scroll_sensitivity = {
7784 if event.modifiers.alt {
7785 fast_scroll_sensitivity
7786 } else {
7787 base_scroll_sensitivity
7788 }
7789 };
7790
7791 if phase == DispatchPhase::Bubble && hitbox.should_handle_scroll(window) {
7792 delta = delta.coalesce(event.delta);
7793 editor.update(cx, |editor, cx| {
7794 let position_map: &PositionMap = &position_map;
7795
7796 let line_height = position_map.line_height;
7797 let max_glyph_advance = position_map.em_advance;
7798 let (delta, axis) = match delta {
7799 gpui::ScrollDelta::Pixels(mut pixels) => {
7800 //Trackpad
7801 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
7802 (pixels, axis)
7803 }
7804
7805 gpui::ScrollDelta::Lines(lines) => {
7806 //Not trackpad
7807 let pixels =
7808 point(lines.x * max_glyph_advance, lines.y * line_height);
7809 (pixels, None)
7810 }
7811 };
7812
7813 let current_scroll_position = position_map.snapshot.scroll_position();
7814 let x = (current_scroll_position.x
7815 * ScrollPixelOffset::from(max_glyph_advance)
7816 - ScrollPixelOffset::from(delta.x * scroll_sensitivity))
7817 / ScrollPixelOffset::from(max_glyph_advance);
7818 let y = (current_scroll_position.y * ScrollPixelOffset::from(line_height)
7819 - ScrollPixelOffset::from(delta.y * scroll_sensitivity))
7820 / ScrollPixelOffset::from(line_height);
7821 let mut scroll_position =
7822 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
7823 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
7824 if forbid_vertical_scroll {
7825 scroll_position.y = current_scroll_position.y;
7826 }
7827
7828 if scroll_position != current_scroll_position {
7829 editor.scroll(scroll_position, axis, window, cx);
7830 cx.stop_propagation();
7831 } else if y < 0. {
7832 // Due to clamping, we may fail to detect cases of overscroll to the top;
7833 // We want the scroll manager to get an update in such cases and detect the change of direction
7834 // on the next frame.
7835 cx.notify();
7836 }
7837 });
7838 }
7839 }
7840 });
7841 }
7842
7843 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
7844 if layout.mode.is_minimap() {
7845 return;
7846 }
7847
7848 self.paint_scroll_wheel_listener(layout, window, cx);
7849
7850 window.on_mouse_event({
7851 let position_map = layout.position_map.clone();
7852 let editor = self.editor.clone();
7853 let line_numbers = layout.line_numbers.clone();
7854
7855 move |event: &MouseDownEvent, phase, window, cx| {
7856 if phase == DispatchPhase::Bubble {
7857 match event.button {
7858 MouseButton::Left => editor.update(cx, |editor, cx| {
7859 let pending_mouse_down = editor
7860 .pending_mouse_down
7861 .get_or_insert_with(Default::default)
7862 .clone();
7863
7864 *pending_mouse_down.borrow_mut() = Some(event.clone());
7865
7866 Self::mouse_left_down(
7867 editor,
7868 event,
7869 &position_map,
7870 line_numbers.as_ref(),
7871 window,
7872 cx,
7873 );
7874 }),
7875 MouseButton::Right => editor.update(cx, |editor, cx| {
7876 Self::mouse_right_down(editor, event, &position_map, window, cx);
7877 }),
7878 MouseButton::Middle => editor.update(cx, |editor, cx| {
7879 Self::mouse_middle_down(editor, event, &position_map, window, cx);
7880 }),
7881 _ => {}
7882 };
7883 }
7884 }
7885 });
7886
7887 window.on_mouse_event({
7888 let editor = self.editor.clone();
7889 let position_map = layout.position_map.clone();
7890
7891 move |event: &MouseUpEvent, phase, window, cx| {
7892 if phase == DispatchPhase::Bubble {
7893 editor.update(cx, |editor, cx| {
7894 Self::mouse_up(editor, event, &position_map, window, cx)
7895 });
7896 }
7897 }
7898 });
7899
7900 window.on_mouse_event({
7901 let editor = self.editor.clone();
7902 let position_map = layout.position_map.clone();
7903 let mut captured_mouse_down = None;
7904
7905 move |event: &MouseUpEvent, phase, window, cx| match phase {
7906 // Clear the pending mouse down during the capture phase,
7907 // so that it happens even if another event handler stops
7908 // propagation.
7909 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
7910 let pending_mouse_down = editor
7911 .pending_mouse_down
7912 .get_or_insert_with(Default::default)
7913 .clone();
7914
7915 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
7916 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
7917 captured_mouse_down = pending_mouse_down.take();
7918 window.refresh();
7919 }
7920 }),
7921 // Fire click handlers during the bubble phase.
7922 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
7923 if let Some(mouse_down) = captured_mouse_down.take() {
7924 let event = ClickEvent::Mouse(MouseClickEvent {
7925 down: mouse_down,
7926 up: event.clone(),
7927 });
7928 Self::click(editor, &event, &position_map, window, cx);
7929 }
7930 }),
7931 }
7932 });
7933
7934 window.on_mouse_event({
7935 let position_map = layout.position_map.clone();
7936 let editor = self.editor.clone();
7937
7938 move |event: &MousePressureEvent, phase, window, cx| {
7939 if phase == DispatchPhase::Bubble {
7940 editor.update(cx, |editor, cx| {
7941 Self::pressure_click(editor, &event, &position_map, window, cx);
7942 })
7943 }
7944 }
7945 });
7946
7947 window.on_mouse_event({
7948 let position_map = layout.position_map.clone();
7949 let editor = self.editor.clone();
7950
7951 move |event: &MouseMoveEvent, phase, window, cx| {
7952 if phase == DispatchPhase::Bubble {
7953 editor.update(cx, |editor, cx| {
7954 if editor.hover_state.focused(window, cx) {
7955 return;
7956 }
7957 if event.pressed_button == Some(MouseButton::Left)
7958 || event.pressed_button == Some(MouseButton::Middle)
7959 {
7960 Self::mouse_dragged(editor, event, &position_map, window, cx)
7961 }
7962
7963 Self::mouse_moved(editor, event, &position_map, window, cx)
7964 });
7965 }
7966 }
7967 });
7968 }
7969
7970 fn shape_line_number(
7971 &self,
7972 text: SharedString,
7973 color: Hsla,
7974 window: &mut Window,
7975 ) -> ShapedLine {
7976 let run = TextRun {
7977 len: text.len(),
7978 font: self.style.text.font(),
7979 color,
7980 ..Default::default()
7981 };
7982 window.text_system().shape_line(
7983 text,
7984 self.style.text.font_size.to_pixels(window.rem_size()),
7985 &[run],
7986 None,
7987 )
7988 }
7989
7990 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
7991 let unstaged = status.has_secondary_hunk();
7992 let unstaged_hollow = matches!(
7993 ProjectSettings::get_global(cx).git.hunk_style,
7994 GitHunkStyleSetting::UnstagedHollow
7995 );
7996
7997 unstaged == unstaged_hollow
7998 }
7999
8000 #[cfg(debug_assertions)]
8001 fn layout_debug_ranges(
8002 selections: &mut Vec<(PlayerColor, Vec<SelectionLayout>)>,
8003 anchor_range: Range<Anchor>,
8004 display_snapshot: &DisplaySnapshot,
8005 cx: &App,
8006 ) {
8007 let theme = cx.theme();
8008 text::debug::GlobalDebugRanges::with_locked(|debug_ranges| {
8009 if debug_ranges.ranges.is_empty() {
8010 return;
8011 }
8012 let buffer_snapshot = &display_snapshot.buffer_snapshot();
8013 for (buffer, buffer_range, excerpt_id) in
8014 buffer_snapshot.range_to_buffer_ranges(anchor_range)
8015 {
8016 let buffer_range =
8017 buffer.anchor_after(buffer_range.start)..buffer.anchor_before(buffer_range.end);
8018 selections.extend(debug_ranges.ranges.iter().flat_map(|debug_range| {
8019 let player_color = theme
8020 .players()
8021 .color_for_participant(debug_range.occurrence_index as u32 + 1);
8022 debug_range.ranges.iter().filter_map(move |range| {
8023 if range.start.buffer_id != Some(buffer.remote_id()) {
8024 return None;
8025 }
8026 let clipped_start = range.start.max(&buffer_range.start, buffer);
8027 let clipped_end = range.end.min(&buffer_range.end, buffer);
8028 let range = buffer_snapshot
8029 .anchor_range_in_excerpt(excerpt_id, *clipped_start..*clipped_end)?;
8030 let start = range.start.to_display_point(display_snapshot);
8031 let end = range.end.to_display_point(display_snapshot);
8032 let selection_layout = SelectionLayout {
8033 head: start,
8034 range: start..end,
8035 cursor_shape: CursorShape::Bar,
8036 is_newest: false,
8037 is_local: false,
8038 active_rows: start.row()..end.row(),
8039 user_name: Some(SharedString::new(debug_range.value.clone())),
8040 };
8041 Some((player_color, vec![selection_layout]))
8042 })
8043 }));
8044 }
8045 });
8046 }
8047}
8048
8049pub fn render_breadcrumb_text(
8050 mut segments: Vec<BreadcrumbText>,
8051 prefix: Option<gpui::AnyElement>,
8052 active_item: &dyn ItemHandle,
8053 multibuffer_header: bool,
8054 window: &mut Window,
8055 cx: &App,
8056) -> impl IntoElement {
8057 const MAX_SEGMENTS: usize = 12;
8058
8059 let element = h_flex().flex_grow().text_ui(cx);
8060
8061 let prefix_end_ix = cmp::min(segments.len(), MAX_SEGMENTS / 2);
8062 let suffix_start_ix = cmp::max(
8063 prefix_end_ix,
8064 segments.len().saturating_sub(MAX_SEGMENTS / 2),
8065 );
8066
8067 if suffix_start_ix > prefix_end_ix {
8068 segments.splice(
8069 prefix_end_ix..suffix_start_ix,
8070 Some(BreadcrumbText {
8071 text: "β―".into(),
8072 highlights: None,
8073 font: None,
8074 }),
8075 );
8076 }
8077
8078 let highlighted_segments = segments.into_iter().enumerate().map(|(index, segment)| {
8079 let mut text_style = window.text_style();
8080 if let Some(ref font) = segment.font {
8081 text_style.font_family = font.family.clone();
8082 text_style.font_features = font.features.clone();
8083 text_style.font_style = font.style;
8084 text_style.font_weight = font.weight;
8085 }
8086 text_style.color = Color::Muted.color(cx);
8087
8088 if index == 0
8089 && !workspace::TabBarSettings::get_global(cx).show
8090 && active_item.is_dirty(cx)
8091 && let Some(styled_element) = apply_dirty_filename_style(&segment, &text_style, cx)
8092 {
8093 return styled_element;
8094 }
8095
8096 StyledText::new(segment.text.replace('\n', "β"))
8097 .with_default_highlights(&text_style, segment.highlights.unwrap_or_default())
8098 .into_any()
8099 });
8100
8101 let breadcrumbs = Itertools::intersperse_with(highlighted_segments, || {
8102 Label::new("βΊ").color(Color::Placeholder).into_any_element()
8103 });
8104
8105 let breadcrumbs_stack = h_flex()
8106 .gap_1()
8107 .when(multibuffer_header, |this| {
8108 this.pl_2()
8109 .border_l_1()
8110 .border_color(cx.theme().colors().border.opacity(0.6))
8111 })
8112 .children(breadcrumbs);
8113
8114 let breadcrumbs = if let Some(prefix) = prefix {
8115 h_flex().gap_1p5().child(prefix).child(breadcrumbs_stack)
8116 } else {
8117 breadcrumbs_stack
8118 };
8119
8120 let editor = active_item
8121 .downcast::<Editor>()
8122 .map(|editor| editor.downgrade());
8123
8124 let has_project_path = active_item.project_path(cx).is_some();
8125
8126 match editor {
8127 Some(editor) => element
8128 .id("breadcrumb_container")
8129 .when(!multibuffer_header, |this| this.overflow_x_scroll())
8130 .child(
8131 ButtonLike::new("toggle outline view")
8132 .child(breadcrumbs)
8133 .when(multibuffer_header, |this| {
8134 this.style(ButtonStyle::Transparent)
8135 })
8136 .when(!multibuffer_header, |this| {
8137 let focus_handle = editor.upgrade().unwrap().focus_handle(&cx);
8138
8139 this.tooltip(Tooltip::element(move |_window, cx| {
8140 v_flex()
8141 .gap_1()
8142 .child(
8143 h_flex()
8144 .gap_1()
8145 .justify_between()
8146 .child(Label::new("Show Symbol Outline"))
8147 .child(ui::KeyBinding::for_action_in(
8148 &zed_actions::outline::ToggleOutline,
8149 &focus_handle,
8150 cx,
8151 )),
8152 )
8153 .when(has_project_path, |this| {
8154 this.child(
8155 h_flex()
8156 .gap_1()
8157 .justify_between()
8158 .pt_1()
8159 .border_t_1()
8160 .border_color(cx.theme().colors().border_variant)
8161 .child(Label::new("Right-Click to Copy Path")),
8162 )
8163 })
8164 .into_any_element()
8165 }))
8166 .on_click({
8167 let editor = editor.clone();
8168 move |_, window, cx| {
8169 if let Some((editor, callback)) = editor
8170 .upgrade()
8171 .zip(zed_actions::outline::TOGGLE_OUTLINE.get())
8172 {
8173 callback(editor.to_any_view(), window, cx);
8174 }
8175 }
8176 })
8177 .when(has_project_path, |this| {
8178 this.on_right_click({
8179 let editor = editor.clone();
8180 move |_, _, cx| {
8181 if let Some(abs_path) = editor.upgrade().and_then(|editor| {
8182 editor.update(cx, |editor, cx| {
8183 editor.target_file_abs_path(cx)
8184 })
8185 }) {
8186 if let Some(path_str) = abs_path.to_str() {
8187 cx.write_to_clipboard(ClipboardItem::new_string(
8188 path_str.to_string(),
8189 ));
8190 }
8191 }
8192 }
8193 })
8194 })
8195 }),
8196 )
8197 .into_any_element(),
8198 None => element
8199 .h(rems_from_px(22.)) // Match the height and padding of the `ButtonLike` in the other arm.
8200 .pl_1()
8201 .child(breadcrumbs)
8202 .into_any_element(),
8203 }
8204}
8205
8206fn apply_dirty_filename_style(
8207 segment: &BreadcrumbText,
8208 text_style: &gpui::TextStyle,
8209 cx: &App,
8210) -> Option<gpui::AnyElement> {
8211 let text = segment.text.replace('\n', "β");
8212
8213 let filename_position = std::path::Path::new(&segment.text)
8214 .file_name()
8215 .and_then(|f| {
8216 let filename_str = f.to_string_lossy();
8217 segment.text.rfind(filename_str.as_ref())
8218 })?;
8219
8220 let bold_weight = FontWeight::BOLD;
8221 let default_color = Color::Default.color(cx);
8222
8223 if filename_position == 0 {
8224 let mut filename_style = text_style.clone();
8225 filename_style.font_weight = bold_weight;
8226 filename_style.color = default_color;
8227
8228 return Some(
8229 StyledText::new(text)
8230 .with_default_highlights(&filename_style, [])
8231 .into_any(),
8232 );
8233 }
8234
8235 let highlight_style = gpui::HighlightStyle {
8236 font_weight: Some(bold_weight),
8237 color: Some(default_color),
8238 ..Default::default()
8239 };
8240
8241 let highlight = vec![(filename_position..text.len(), highlight_style)];
8242 Some(
8243 StyledText::new(text)
8244 .with_default_highlights(text_style, highlight)
8245 .into_any(),
8246 )
8247}
8248
8249fn file_status_label_color(file_status: Option<FileStatus>) -> Color {
8250 file_status.map_or(Color::Default, |status| {
8251 if status.is_conflicted() {
8252 Color::Conflict
8253 } else if status.is_modified() {
8254 Color::Modified
8255 } else if status.is_deleted() {
8256 Color::Disabled
8257 } else if status.is_created() {
8258 Color::Created
8259 } else {
8260 Color::Default
8261 }
8262 })
8263}
8264
8265fn header_jump_data(
8266 editor_snapshot: &EditorSnapshot,
8267 block_row_start: DisplayRow,
8268 height: u32,
8269 first_excerpt: &ExcerptInfo,
8270 latest_selection_anchors: &HashMap<BufferId, Anchor>,
8271) -> JumpData {
8272 let jump_target = if let Some(anchor) = latest_selection_anchors.get(&first_excerpt.buffer_id)
8273 && let Some(range) = editor_snapshot.context_range_for_excerpt(anchor.excerpt_id)
8274 && let Some(buffer) = editor_snapshot
8275 .buffer_snapshot()
8276 .buffer_for_excerpt(anchor.excerpt_id)
8277 {
8278 JumpTargetInExcerptInput {
8279 id: anchor.excerpt_id,
8280 buffer,
8281 excerpt_start_anchor: range.start,
8282 jump_anchor: anchor.text_anchor,
8283 }
8284 } else {
8285 JumpTargetInExcerptInput {
8286 id: first_excerpt.id,
8287 buffer: &first_excerpt.buffer,
8288 excerpt_start_anchor: first_excerpt.range.context.start,
8289 jump_anchor: first_excerpt.range.primary.start,
8290 }
8291 };
8292 header_jump_data_inner(editor_snapshot, block_row_start, height, &jump_target)
8293}
8294
8295struct JumpTargetInExcerptInput<'a> {
8296 id: ExcerptId,
8297 buffer: &'a language::BufferSnapshot,
8298 excerpt_start_anchor: text::Anchor,
8299 jump_anchor: text::Anchor,
8300}
8301
8302fn header_jump_data_inner(
8303 snapshot: &EditorSnapshot,
8304 block_row_start: DisplayRow,
8305 height: u32,
8306 for_excerpt: &JumpTargetInExcerptInput,
8307) -> JumpData {
8308 let buffer = &for_excerpt.buffer;
8309 let jump_position = language::ToPoint::to_point(&for_excerpt.jump_anchor, buffer);
8310 let excerpt_start = for_excerpt.excerpt_start_anchor;
8311 let rows_from_excerpt_start = if for_excerpt.jump_anchor == excerpt_start {
8312 0
8313 } else {
8314 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
8315 jump_position.row.saturating_sub(excerpt_start_point.row)
8316 };
8317
8318 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
8319 .saturating_sub(
8320 snapshot
8321 .scroll_anchor
8322 .scroll_position(&snapshot.display_snapshot)
8323 .y as u32,
8324 );
8325
8326 JumpData::MultiBufferPoint {
8327 excerpt_id: for_excerpt.id,
8328 anchor: for_excerpt.jump_anchor,
8329 position: jump_position,
8330 line_offset_from_top,
8331 }
8332}
8333
8334pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
8335
8336impl AcceptEditPredictionBinding {
8337 pub fn keystroke(&self) -> Option<&KeybindingKeystroke> {
8338 if let Some(binding) = self.0.as_ref() {
8339 match &binding.keystrokes() {
8340 [keystroke, ..] => Some(keystroke),
8341 _ => None,
8342 }
8343 } else {
8344 None
8345 }
8346 }
8347}
8348
8349fn prepaint_gutter_button(
8350 mut button: AnyElement,
8351 row: DisplayRow,
8352 line_height: Pixels,
8353 gutter_dimensions: &GutterDimensions,
8354 scroll_position: gpui::Point<ScrollOffset>,
8355 gutter_hitbox: &Hitbox,
8356 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
8357 window: &mut Window,
8358 cx: &mut App,
8359) -> AnyElement {
8360 let available_space = size(
8361 AvailableSpace::MinContent,
8362 AvailableSpace::Definite(line_height),
8363 );
8364 let indicator_size = button.layout_as_root(available_space, window, cx);
8365
8366 let blame_width = gutter_dimensions.git_blame_entries_width;
8367 let gutter_width = display_hunks
8368 .binary_search_by(|(hunk, _)| match hunk {
8369 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
8370 DisplayDiffHunk::Unfolded {
8371 display_row_range, ..
8372 } => {
8373 if display_row_range.end <= row {
8374 Ordering::Less
8375 } else if display_row_range.start > row {
8376 Ordering::Greater
8377 } else {
8378 Ordering::Equal
8379 }
8380 }
8381 })
8382 .ok()
8383 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
8384 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
8385
8386 let x = left_offset;
8387
8388 let mut y =
8389 Pixels::from((row.as_f64() - scroll_position.y) * ScrollPixelOffset::from(line_height));
8390 y += (line_height - indicator_size.height) / 2.;
8391
8392 button.prepaint_as_root(
8393 gutter_hitbox.origin + point(x, y),
8394 available_space,
8395 window,
8396 cx,
8397 );
8398 button
8399}
8400
8401fn render_inline_blame_entry(
8402 blame_entry: BlameEntry,
8403 style: &EditorStyle,
8404 cx: &mut App,
8405) -> Option<AnyElement> {
8406 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
8407 renderer.render_inline_blame_entry(&style.text, blame_entry, cx)
8408}
8409
8410fn render_blame_entry_popover(
8411 blame_entry: BlameEntry,
8412 scroll_handle: ScrollHandle,
8413 commit_message: Option<ParsedCommitMessage>,
8414 markdown: Entity<Markdown>,
8415 workspace: WeakEntity<Workspace>,
8416 blame: &Entity<GitBlame>,
8417 buffer: BufferId,
8418 window: &mut Window,
8419 cx: &mut App,
8420) -> Option<AnyElement> {
8421 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
8422 let blame = blame.read(cx);
8423 let repository = blame.repository(cx, buffer)?;
8424 renderer.render_blame_entry_popover(
8425 blame_entry,
8426 scroll_handle,
8427 commit_message,
8428 markdown,
8429 repository,
8430 workspace,
8431 window,
8432 cx,
8433 )
8434}
8435
8436fn render_blame_entry(
8437 ix: usize,
8438 blame: &Entity<GitBlame>,
8439 blame_entry: BlameEntry,
8440 style: &EditorStyle,
8441 last_used_color: &mut Option<(Hsla, Oid)>,
8442 editor: Entity<Editor>,
8443 workspace: Entity<Workspace>,
8444 buffer: BufferId,
8445 renderer: &dyn BlameRenderer,
8446 window: &mut Window,
8447 cx: &mut App,
8448) -> Option<AnyElement> {
8449 let index: u32 = blame_entry.sha.into();
8450 let mut sha_color = cx.theme().players().color_for_participant(index).cursor;
8451
8452 // If the last color we used is the same as the one we get for this line, but
8453 // the commit SHAs are different, then we try again to get a different color.
8454 if let Some((color, sha)) = *last_used_color
8455 && sha != blame_entry.sha
8456 && color == sha_color
8457 {
8458 sha_color = cx.theme().players().color_for_participant(index + 1).cursor;
8459 }
8460 last_used_color.replace((sha_color, blame_entry.sha));
8461
8462 let blame = blame.read(cx);
8463 let details = blame.details_for_entry(buffer, &blame_entry);
8464 let repository = blame.repository(cx, buffer)?;
8465 renderer.render_blame_entry(
8466 &style.text,
8467 blame_entry,
8468 details,
8469 repository,
8470 workspace.downgrade(),
8471 editor,
8472 ix,
8473 sha_color,
8474 window,
8475 cx,
8476 )
8477}
8478
8479#[derive(Debug)]
8480pub(crate) struct LineWithInvisibles {
8481 fragments: SmallVec<[LineFragment; 1]>,
8482 invisibles: Vec<Invisible>,
8483 len: usize,
8484 pub(crate) width: Pixels,
8485 font_size: Pixels,
8486}
8487
8488enum LineFragment {
8489 Text(ShapedLine),
8490 Element {
8491 id: ChunkRendererId,
8492 element: Option<AnyElement>,
8493 size: Size<Pixels>,
8494 len: usize,
8495 },
8496}
8497
8498impl fmt::Debug for LineFragment {
8499 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
8500 match self {
8501 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
8502 LineFragment::Element { size, len, .. } => f
8503 .debug_struct("Element")
8504 .field("size", size)
8505 .field("len", len)
8506 .finish(),
8507 }
8508 }
8509}
8510
8511impl LineWithInvisibles {
8512 fn from_chunks<'a>(
8513 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
8514 editor_style: &EditorStyle,
8515 max_line_len: usize,
8516 max_line_count: usize,
8517 editor_mode: &EditorMode,
8518 text_width: Pixels,
8519 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8520 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
8521 window: &mut Window,
8522 cx: &mut App,
8523 ) -> Vec<Self> {
8524 let text_style = &editor_style.text;
8525 let mut layouts = Vec::with_capacity(max_line_count);
8526 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
8527 let mut line = String::new();
8528 let mut invisibles = Vec::new();
8529 let mut width = Pixels::ZERO;
8530 let mut len = 0;
8531 let mut styles = Vec::new();
8532 let mut non_whitespace_added = false;
8533 let mut row = 0;
8534 let mut line_exceeded_max_len = false;
8535 let font_size = text_style.font_size.to_pixels(window.rem_size());
8536 let min_contrast = EditorSettings::get_global(cx).minimum_contrast_for_highlights;
8537
8538 let ellipsis = SharedString::from("β―");
8539
8540 for highlighted_chunk in chunks.chain([HighlightedChunk {
8541 text: "\n",
8542 style: None,
8543 is_tab: false,
8544 is_inlay: false,
8545 replacement: None,
8546 }]) {
8547 if let Some(replacement) = highlighted_chunk.replacement {
8548 if !line.is_empty() {
8549 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8550 let text_runs: &[TextRun] = if segments.is_empty() {
8551 &styles
8552 } else {
8553 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8554 };
8555 let shaped_line = window.text_system().shape_line(
8556 line.clone().into(),
8557 font_size,
8558 text_runs,
8559 None,
8560 );
8561 width += shaped_line.width;
8562 len += shaped_line.len;
8563 fragments.push(LineFragment::Text(shaped_line));
8564 line.clear();
8565 styles.clear();
8566 }
8567
8568 match replacement {
8569 ChunkReplacement::Renderer(renderer) => {
8570 let available_width = if renderer.constrain_width {
8571 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
8572 ellipsis.clone()
8573 } else {
8574 SharedString::from(Arc::from(highlighted_chunk.text))
8575 };
8576 let shaped_line = window.text_system().shape_line(
8577 chunk,
8578 font_size,
8579 &[text_style.to_run(highlighted_chunk.text.len())],
8580 None,
8581 );
8582 AvailableSpace::Definite(shaped_line.width)
8583 } else {
8584 AvailableSpace::MinContent
8585 };
8586
8587 let mut element = (renderer.render)(&mut ChunkRendererContext {
8588 context: cx,
8589 window,
8590 max_width: text_width,
8591 });
8592 let line_height = text_style.line_height_in_pixels(window.rem_size());
8593 let size = element.layout_as_root(
8594 size(available_width, AvailableSpace::Definite(line_height)),
8595 window,
8596 cx,
8597 );
8598
8599 width += size.width;
8600 len += highlighted_chunk.text.len();
8601 fragments.push(LineFragment::Element {
8602 id: renderer.id,
8603 element: Some(element),
8604 size,
8605 len: highlighted_chunk.text.len(),
8606 });
8607 }
8608 ChunkReplacement::Str(x) => {
8609 let text_style = if let Some(style) = highlighted_chunk.style {
8610 Cow::Owned(text_style.clone().highlight(style))
8611 } else {
8612 Cow::Borrowed(text_style)
8613 };
8614
8615 let run = TextRun {
8616 len: x.len(),
8617 font: text_style.font(),
8618 color: text_style.color,
8619 background_color: text_style.background_color,
8620 underline: text_style.underline,
8621 strikethrough: text_style.strikethrough,
8622 };
8623 let line_layout = window
8624 .text_system()
8625 .shape_line(x, font_size, &[run], None)
8626 .with_len(highlighted_chunk.text.len());
8627
8628 width += line_layout.width;
8629 len += highlighted_chunk.text.len();
8630 fragments.push(LineFragment::Text(line_layout))
8631 }
8632 }
8633 } else {
8634 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
8635 if ix > 0 {
8636 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8637 let text_runs = if segments.is_empty() {
8638 &styles
8639 } else {
8640 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8641 };
8642 let shaped_line = window.text_system().shape_line(
8643 line.clone().into(),
8644 font_size,
8645 text_runs,
8646 None,
8647 );
8648 width += shaped_line.width;
8649 len += shaped_line.len;
8650 fragments.push(LineFragment::Text(shaped_line));
8651 layouts.push(Self {
8652 width: mem::take(&mut width),
8653 len: mem::take(&mut len),
8654 fragments: mem::take(&mut fragments),
8655 invisibles: std::mem::take(&mut invisibles),
8656 font_size,
8657 });
8658
8659 line.clear();
8660 styles.clear();
8661 row += 1;
8662 line_exceeded_max_len = false;
8663 non_whitespace_added = false;
8664 if row == max_line_count {
8665 return layouts;
8666 }
8667 }
8668
8669 if !line_chunk.is_empty() && !line_exceeded_max_len {
8670 let text_style = if let Some(style) = highlighted_chunk.style {
8671 Cow::Owned(text_style.clone().highlight(style))
8672 } else {
8673 Cow::Borrowed(text_style)
8674 };
8675
8676 if line.len() + line_chunk.len() > max_line_len {
8677 let mut chunk_len = max_line_len - line.len();
8678 while !line_chunk.is_char_boundary(chunk_len) {
8679 chunk_len -= 1;
8680 }
8681 line_chunk = &line_chunk[..chunk_len];
8682 line_exceeded_max_len = true;
8683 }
8684
8685 styles.push(TextRun {
8686 len: line_chunk.len(),
8687 font: text_style.font(),
8688 color: text_style.color,
8689 background_color: text_style.background_color,
8690 underline: text_style.underline,
8691 strikethrough: text_style.strikethrough,
8692 });
8693
8694 if editor_mode.is_full() && !highlighted_chunk.is_inlay {
8695 // Line wrap pads its contents with fake whitespaces,
8696 // avoid printing them
8697 let is_soft_wrapped = is_row_soft_wrapped(row);
8698 if highlighted_chunk.is_tab {
8699 if non_whitespace_added || !is_soft_wrapped {
8700 invisibles.push(Invisible::Tab {
8701 line_start_offset: line.len(),
8702 line_end_offset: line.len() + line_chunk.len(),
8703 });
8704 }
8705 } else {
8706 invisibles.extend(line_chunk.char_indices().filter_map(
8707 |(index, c)| {
8708 let is_whitespace = c.is_whitespace();
8709 non_whitespace_added |= !is_whitespace;
8710 if is_whitespace
8711 && (non_whitespace_added || !is_soft_wrapped)
8712 {
8713 Some(Invisible::Whitespace {
8714 line_offset: line.len() + index,
8715 })
8716 } else {
8717 None
8718 }
8719 },
8720 ))
8721 }
8722 }
8723
8724 line.push_str(line_chunk);
8725 }
8726 }
8727 }
8728 }
8729
8730 layouts
8731 }
8732
8733 /// Takes text runs and non-overlapping left-to-right background ranges with color.
8734 /// Returns new text runs with adjusted contrast as per background ranges.
8735 fn split_runs_by_bg_segments(
8736 text_runs: &[TextRun],
8737 bg_segments: &[(Range<DisplayPoint>, Hsla)],
8738 min_contrast: f32,
8739 start_col_offset: usize,
8740 ) -> Vec<TextRun> {
8741 let mut output_runs: Vec<TextRun> = Vec::with_capacity(text_runs.len());
8742 let mut line_col = start_col_offset;
8743 let mut segment_ix = 0usize;
8744
8745 for text_run in text_runs.iter() {
8746 let run_start_col = line_col;
8747 let run_end_col = run_start_col + text_run.len;
8748 while segment_ix < bg_segments.len()
8749 && (bg_segments[segment_ix].0.end.column() as usize) <= run_start_col
8750 {
8751 segment_ix += 1;
8752 }
8753 let mut cursor_col = run_start_col;
8754 let mut local_segment_ix = segment_ix;
8755 while local_segment_ix < bg_segments.len() {
8756 let (range, segment_color) = &bg_segments[local_segment_ix];
8757 let segment_start_col = range.start.column() as usize;
8758 let segment_end_col = range.end.column() as usize;
8759 if segment_start_col >= run_end_col {
8760 break;
8761 }
8762 if segment_start_col > cursor_col {
8763 let span_len = segment_start_col - cursor_col;
8764 output_runs.push(TextRun {
8765 len: span_len,
8766 font: text_run.font.clone(),
8767 color: text_run.color,
8768 background_color: text_run.background_color,
8769 underline: text_run.underline,
8770 strikethrough: text_run.strikethrough,
8771 });
8772 cursor_col = segment_start_col;
8773 }
8774 let segment_slice_end_col = segment_end_col.min(run_end_col);
8775 if segment_slice_end_col > cursor_col {
8776 let new_text_color =
8777 ensure_minimum_contrast(text_run.color, *segment_color, min_contrast);
8778 output_runs.push(TextRun {
8779 len: segment_slice_end_col - cursor_col,
8780 font: text_run.font.clone(),
8781 color: new_text_color,
8782 background_color: text_run.background_color,
8783 underline: text_run.underline,
8784 strikethrough: text_run.strikethrough,
8785 });
8786 cursor_col = segment_slice_end_col;
8787 }
8788 if segment_end_col >= run_end_col {
8789 break;
8790 }
8791 local_segment_ix += 1;
8792 }
8793 if cursor_col < run_end_col {
8794 output_runs.push(TextRun {
8795 len: run_end_col - cursor_col,
8796 font: text_run.font.clone(),
8797 color: text_run.color,
8798 background_color: text_run.background_color,
8799 underline: text_run.underline,
8800 strikethrough: text_run.strikethrough,
8801 });
8802 }
8803 line_col = run_end_col;
8804 segment_ix = local_segment_ix;
8805 }
8806 output_runs
8807 }
8808
8809 fn prepaint(
8810 &mut self,
8811 line_height: Pixels,
8812 scroll_position: gpui::Point<ScrollOffset>,
8813 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
8814 row: DisplayRow,
8815 content_origin: gpui::Point<Pixels>,
8816 line_elements: &mut SmallVec<[AnyElement; 1]>,
8817 window: &mut Window,
8818 cx: &mut App,
8819 ) {
8820 let line_y = f32::from(line_height) * Pixels::from(row.as_f64() - scroll_position.y);
8821 self.prepaint_with_custom_offset(
8822 line_height,
8823 scroll_pixel_position,
8824 content_origin,
8825 line_y,
8826 line_elements,
8827 window,
8828 cx,
8829 );
8830 }
8831
8832 fn prepaint_with_custom_offset(
8833 &mut self,
8834 line_height: Pixels,
8835 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
8836 content_origin: gpui::Point<Pixels>,
8837 line_y: Pixels,
8838 line_elements: &mut SmallVec<[AnyElement; 1]>,
8839 window: &mut Window,
8840 cx: &mut App,
8841 ) {
8842 let mut fragment_origin =
8843 content_origin + gpui::point(Pixels::from(-scroll_pixel_position.x), line_y);
8844 for fragment in &mut self.fragments {
8845 match fragment {
8846 LineFragment::Text(line) => {
8847 fragment_origin.x += line.width;
8848 }
8849 LineFragment::Element { element, size, .. } => {
8850 let mut element = element
8851 .take()
8852 .expect("you can't prepaint LineWithInvisibles twice");
8853
8854 // Center the element vertically within the line.
8855 let mut element_origin = fragment_origin;
8856 element_origin.y += (line_height - size.height) / 2.;
8857 element.prepaint_at(element_origin, window, cx);
8858 line_elements.push(element);
8859
8860 fragment_origin.x += size.width;
8861 }
8862 }
8863 }
8864 }
8865
8866 fn draw(
8867 &self,
8868 layout: &EditorLayout,
8869 row: DisplayRow,
8870 content_origin: gpui::Point<Pixels>,
8871 whitespace_setting: ShowWhitespaceSetting,
8872 selection_ranges: &[Range<DisplayPoint>],
8873 window: &mut Window,
8874 cx: &mut App,
8875 ) {
8876 self.draw_with_custom_offset(
8877 layout,
8878 row,
8879 content_origin,
8880 layout.position_map.line_height
8881 * (row.as_f64() - layout.position_map.scroll_position.y) as f32,
8882 whitespace_setting,
8883 selection_ranges,
8884 window,
8885 cx,
8886 );
8887 }
8888
8889 fn draw_with_custom_offset(
8890 &self,
8891 layout: &EditorLayout,
8892 row: DisplayRow,
8893 content_origin: gpui::Point<Pixels>,
8894 line_y: Pixels,
8895 whitespace_setting: ShowWhitespaceSetting,
8896 selection_ranges: &[Range<DisplayPoint>],
8897 window: &mut Window,
8898 cx: &mut App,
8899 ) {
8900 let line_height = layout.position_map.line_height;
8901 let mut fragment_origin = content_origin
8902 + gpui::point(
8903 Pixels::from(-layout.position_map.scroll_pixel_position.x),
8904 line_y,
8905 );
8906
8907 for fragment in &self.fragments {
8908 match fragment {
8909 LineFragment::Text(line) => {
8910 line.paint(
8911 fragment_origin,
8912 line_height,
8913 layout.text_align,
8914 Some(layout.content_width),
8915 window,
8916 cx,
8917 )
8918 .log_err();
8919 fragment_origin.x += line.width;
8920 }
8921 LineFragment::Element { size, .. } => {
8922 fragment_origin.x += size.width;
8923 }
8924 }
8925 }
8926
8927 self.draw_invisibles(
8928 selection_ranges,
8929 layout,
8930 content_origin,
8931 line_y,
8932 row,
8933 line_height,
8934 whitespace_setting,
8935 window,
8936 cx,
8937 );
8938 }
8939
8940 fn draw_background(
8941 &self,
8942 layout: &EditorLayout,
8943 row: DisplayRow,
8944 content_origin: gpui::Point<Pixels>,
8945 window: &mut Window,
8946 cx: &mut App,
8947 ) {
8948 let line_height = layout.position_map.line_height;
8949 let line_y = line_height * (row.as_f64() - layout.position_map.scroll_position.y) as f32;
8950
8951 let mut fragment_origin = content_origin
8952 + gpui::point(
8953 Pixels::from(-layout.position_map.scroll_pixel_position.x),
8954 line_y,
8955 );
8956
8957 for fragment in &self.fragments {
8958 match fragment {
8959 LineFragment::Text(line) => {
8960 line.paint_background(
8961 fragment_origin,
8962 line_height,
8963 layout.text_align,
8964 Some(layout.content_width),
8965 window,
8966 cx,
8967 )
8968 .log_err();
8969 fragment_origin.x += line.width;
8970 }
8971 LineFragment::Element { size, .. } => {
8972 fragment_origin.x += size.width;
8973 }
8974 }
8975 }
8976 }
8977
8978 fn draw_invisibles(
8979 &self,
8980 selection_ranges: &[Range<DisplayPoint>],
8981 layout: &EditorLayout,
8982 content_origin: gpui::Point<Pixels>,
8983 line_y: Pixels,
8984 row: DisplayRow,
8985 line_height: Pixels,
8986 whitespace_setting: ShowWhitespaceSetting,
8987 window: &mut Window,
8988 cx: &mut App,
8989 ) {
8990 let extract_whitespace_info = |invisible: &Invisible| {
8991 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
8992 Invisible::Tab {
8993 line_start_offset,
8994 line_end_offset,
8995 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
8996 Invisible::Whitespace { line_offset } => {
8997 (*line_offset, line_offset + 1, &layout.space_invisible)
8998 }
8999 };
9000
9001 let x_offset: ScrollPixelOffset = self.x_for_index(token_offset).into();
9002 let invisible_offset: ScrollPixelOffset =
9003 ((layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0)
9004 .into();
9005 let origin = content_origin
9006 + gpui::point(
9007 Pixels::from(
9008 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
9009 ),
9010 line_y,
9011 );
9012
9013 (
9014 [token_offset, token_end_offset],
9015 Box::new(move |window: &mut Window, cx: &mut App| {
9016 invisible_symbol
9017 .paint(origin, line_height, TextAlign::Left, None, window, cx)
9018 .log_err();
9019 }),
9020 )
9021 };
9022
9023 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
9024 match whitespace_setting {
9025 ShowWhitespaceSetting::None => (),
9026 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
9027 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
9028 let invisible_point = DisplayPoint::new(row, start as u32);
9029 if !selection_ranges
9030 .iter()
9031 .any(|region| region.start <= invisible_point && invisible_point < region.end)
9032 {
9033 return;
9034 }
9035
9036 paint(window, cx);
9037 }),
9038
9039 ShowWhitespaceSetting::Trailing => {
9040 let mut previous_start = self.len;
9041 for ([start, end], paint) in invisible_iter.rev() {
9042 if previous_start != end {
9043 break;
9044 }
9045 previous_start = start;
9046 paint(window, cx);
9047 }
9048 }
9049
9050 // For a whitespace to be on a boundary, any of the following conditions need to be met:
9051 // - It is a tab
9052 // - It is adjacent to an edge (start or end)
9053 // - It is adjacent to a whitespace (left or right)
9054 ShowWhitespaceSetting::Boundary => {
9055 // 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
9056 // the above cases.
9057 // Note: We zip in the original `invisibles` to check for tab equality
9058 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
9059 for (([start, end], paint), invisible) in
9060 invisible_iter.zip_eq(self.invisibles.iter())
9061 {
9062 let should_render = match (&last_seen, invisible) {
9063 (_, Invisible::Tab { .. }) => true,
9064 (Some((_, last_end, _)), _) => *last_end == start,
9065 _ => false,
9066 };
9067
9068 if should_render || start == 0 || end == self.len {
9069 paint(window, cx);
9070
9071 // Since we are scanning from the left, we will skip over the first available whitespace that is part
9072 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
9073 if let Some((should_render_last, last_end, paint_last)) = last_seen {
9074 // Note that we need to make sure that the last one is actually adjacent
9075 if !should_render_last && last_end == start {
9076 paint_last(window, cx);
9077 }
9078 }
9079 }
9080
9081 // Manually render anything within a selection
9082 let invisible_point = DisplayPoint::new(row, start as u32);
9083 if selection_ranges.iter().any(|region| {
9084 region.start <= invisible_point && invisible_point < region.end
9085 }) {
9086 paint(window, cx);
9087 }
9088
9089 last_seen = Some((should_render, end, paint));
9090 }
9091 }
9092 }
9093 }
9094
9095 pub fn x_for_index(&self, index: usize) -> Pixels {
9096 let mut fragment_start_x = Pixels::ZERO;
9097 let mut fragment_start_index = 0;
9098
9099 for fragment in &self.fragments {
9100 match fragment {
9101 LineFragment::Text(shaped_line) => {
9102 let fragment_end_index = fragment_start_index + shaped_line.len;
9103 if index < fragment_end_index {
9104 return fragment_start_x
9105 + shaped_line.x_for_index(index - fragment_start_index);
9106 }
9107 fragment_start_x += shaped_line.width;
9108 fragment_start_index = fragment_end_index;
9109 }
9110 LineFragment::Element { len, size, .. } => {
9111 let fragment_end_index = fragment_start_index + len;
9112 if index < fragment_end_index {
9113 return fragment_start_x;
9114 }
9115 fragment_start_x += size.width;
9116 fragment_start_index = fragment_end_index;
9117 }
9118 }
9119 }
9120
9121 fragment_start_x
9122 }
9123
9124 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
9125 let mut fragment_start_x = Pixels::ZERO;
9126 let mut fragment_start_index = 0;
9127
9128 for fragment in &self.fragments {
9129 match fragment {
9130 LineFragment::Text(shaped_line) => {
9131 let fragment_end_x = fragment_start_x + shaped_line.width;
9132 if x < fragment_end_x {
9133 return Some(
9134 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
9135 );
9136 }
9137 fragment_start_x = fragment_end_x;
9138 fragment_start_index += shaped_line.len;
9139 }
9140 LineFragment::Element { len, size, .. } => {
9141 let fragment_end_x = fragment_start_x + size.width;
9142 if x < fragment_end_x {
9143 return Some(fragment_start_index);
9144 }
9145 fragment_start_index += len;
9146 fragment_start_x = fragment_end_x;
9147 }
9148 }
9149 }
9150
9151 None
9152 }
9153
9154 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
9155 let mut fragment_start_index = 0;
9156
9157 for fragment in &self.fragments {
9158 match fragment {
9159 LineFragment::Text(shaped_line) => {
9160 let fragment_end_index = fragment_start_index + shaped_line.len;
9161 if index < fragment_end_index {
9162 return shaped_line.font_id_for_index(index - fragment_start_index);
9163 }
9164 fragment_start_index = fragment_end_index;
9165 }
9166 LineFragment::Element { len, .. } => {
9167 let fragment_end_index = fragment_start_index + len;
9168 if index < fragment_end_index {
9169 return None;
9170 }
9171 fragment_start_index = fragment_end_index;
9172 }
9173 }
9174 }
9175
9176 None
9177 }
9178
9179 pub fn alignment_offset(&self, text_align: TextAlign, content_width: Pixels) -> Pixels {
9180 let line_width = self.width;
9181 match text_align {
9182 TextAlign::Left => px(0.0),
9183 TextAlign::Center => (content_width - line_width) / 2.0,
9184 TextAlign::Right => content_width - line_width,
9185 }
9186 }
9187}
9188
9189#[derive(Debug, Clone, Copy, PartialEq, Eq)]
9190enum Invisible {
9191 /// A tab character
9192 ///
9193 /// A tab character is internally represented by spaces (configured by the user's tab width)
9194 /// aligned to the nearest column, so it's necessary to store the start and end offset for
9195 /// adjacency checks.
9196 Tab {
9197 line_start_offset: usize,
9198 line_end_offset: usize,
9199 },
9200 Whitespace {
9201 line_offset: usize,
9202 },
9203}
9204
9205impl EditorElement {
9206 /// Returns the rem size to use when rendering the [`EditorElement`].
9207 ///
9208 /// This allows UI elements to scale based on the `buffer_font_size`.
9209 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
9210 match self.editor.read(cx).mode {
9211 EditorMode::Full {
9212 scale_ui_elements_with_buffer_font_size: true,
9213 ..
9214 }
9215 | EditorMode::Minimap { .. } => {
9216 let buffer_font_size = self.style.text.font_size;
9217 match buffer_font_size {
9218 AbsoluteLength::Pixels(pixels) => {
9219 let rem_size_scale = {
9220 // Our default UI font size is 14px on a 16px base scale.
9221 // This means the default UI font size is 0.875rems.
9222 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
9223
9224 // We then determine the delta between a single rem and the default font
9225 // size scale.
9226 let default_font_size_delta = 1. - default_font_size_scale;
9227
9228 // Finally, we add this delta to 1rem to get the scale factor that
9229 // should be used to scale up the UI.
9230 1. + default_font_size_delta
9231 };
9232
9233 Some(pixels * rem_size_scale)
9234 }
9235 AbsoluteLength::Rems(rems) => {
9236 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
9237 }
9238 }
9239 }
9240 // We currently use single-line and auto-height editors in UI contexts,
9241 // so we don't want to scale everything with the buffer font size, as it
9242 // ends up looking off.
9243 _ => None,
9244 }
9245 }
9246
9247 fn editor_with_selections(&self, cx: &App) -> Option<Entity<Editor>> {
9248 if let EditorMode::Minimap { parent } = self.editor.read(cx).mode() {
9249 parent.upgrade()
9250 } else {
9251 Some(self.editor.clone())
9252 }
9253 }
9254}
9255
9256#[derive(Default)]
9257pub struct EditorRequestLayoutState {
9258 // We use prepaint depth to limit the number of times prepaint is
9259 // called recursively. We need this so that we can update stale
9260 // data for e.g. block heights in block map.
9261 prepaint_depth: Rc<Cell<usize>>,
9262}
9263
9264impl EditorRequestLayoutState {
9265 // In ideal conditions we only need one more subsequent prepaint call for resize to take effect.
9266 // i.e. MAX_PREPAINT_DEPTH = 2, but since moving blocks inline (place_near), more lines from
9267 // below get exposed, and we end up querying blocks for those lines too in subsequent renders.
9268 // Setting MAX_PREPAINT_DEPTH = 3, passes all tests. Just to be on the safe side we set it to 5, so
9269 // that subsequent shrinking does not lead to incorrect block placing.
9270 const MAX_PREPAINT_DEPTH: usize = 5;
9271
9272 fn increment_prepaint_depth(&self) -> EditorPrepaintGuard {
9273 let depth = self.prepaint_depth.get();
9274 self.prepaint_depth.set(depth + 1);
9275 EditorPrepaintGuard {
9276 prepaint_depth: self.prepaint_depth.clone(),
9277 }
9278 }
9279
9280 fn can_prepaint(&self) -> bool {
9281 self.prepaint_depth.get() < Self::MAX_PREPAINT_DEPTH
9282 }
9283}
9284
9285struct EditorPrepaintGuard {
9286 prepaint_depth: Rc<Cell<usize>>,
9287}
9288
9289impl Drop for EditorPrepaintGuard {
9290 fn drop(&mut self) {
9291 let depth = self.prepaint_depth.get();
9292 self.prepaint_depth.set(depth.saturating_sub(1));
9293 }
9294}
9295
9296impl Element for EditorElement {
9297 type RequestLayoutState = EditorRequestLayoutState;
9298 type PrepaintState = EditorLayout;
9299
9300 fn id(&self) -> Option<ElementId> {
9301 None
9302 }
9303
9304 fn source_location(&self) -> Option<&'static core::panic::Location<'static>> {
9305 None
9306 }
9307
9308 fn request_layout(
9309 &mut self,
9310 _: Option<&GlobalElementId>,
9311 _inspector_id: Option<&gpui::InspectorElementId>,
9312 window: &mut Window,
9313 cx: &mut App,
9314 ) -> (gpui::LayoutId, Self::RequestLayoutState) {
9315 let rem_size = self.rem_size(cx);
9316 window.with_rem_size(rem_size, |window| {
9317 self.editor.update(cx, |editor, cx| {
9318 editor.set_style(self.style.clone(), window, cx);
9319
9320 let layout_id = match editor.mode {
9321 EditorMode::SingleLine => {
9322 let rem_size = window.rem_size();
9323 let height = self.style.text.line_height_in_pixels(rem_size);
9324 let mut style = Style::default();
9325 style.size.height = height.into();
9326 style.size.width = relative(1.).into();
9327 window.request_layout(style, None, cx)
9328 }
9329 EditorMode::AutoHeight {
9330 min_lines,
9331 max_lines,
9332 } => {
9333 let editor_handle = cx.entity();
9334 window.request_measured_layout(
9335 Style::default(),
9336 move |known_dimensions, available_space, window, cx| {
9337 editor_handle
9338 .update(cx, |editor, cx| {
9339 compute_auto_height_layout(
9340 editor,
9341 min_lines,
9342 max_lines,
9343 known_dimensions,
9344 available_space.width,
9345 window,
9346 cx,
9347 )
9348 })
9349 .unwrap_or_default()
9350 },
9351 )
9352 }
9353 EditorMode::Minimap { .. } => {
9354 let mut style = Style::default();
9355 style.size.width = relative(1.).into();
9356 style.size.height = relative(1.).into();
9357 window.request_layout(style, None, cx)
9358 }
9359 EditorMode::Full {
9360 sizing_behavior, ..
9361 } => {
9362 let mut style = Style::default();
9363 style.size.width = relative(1.).into();
9364 if sizing_behavior == SizingBehavior::SizeByContent {
9365 let snapshot = editor.snapshot(window, cx);
9366 let line_height =
9367 self.style.text.line_height_in_pixels(window.rem_size());
9368 let scroll_height =
9369 (snapshot.max_point().row().next_row().0 as f32) * line_height;
9370 style.size.height = scroll_height.into();
9371 } else {
9372 style.size.height = relative(1.).into();
9373 }
9374 window.request_layout(style, None, cx)
9375 }
9376 };
9377
9378 (layout_id, EditorRequestLayoutState::default())
9379 })
9380 })
9381 }
9382
9383 fn prepaint(
9384 &mut self,
9385 _: Option<&GlobalElementId>,
9386 _inspector_id: Option<&gpui::InspectorElementId>,
9387 bounds: Bounds<Pixels>,
9388 request_layout: &mut Self::RequestLayoutState,
9389 window: &mut Window,
9390 cx: &mut App,
9391 ) -> Self::PrepaintState {
9392 let _prepaint_depth_guard = request_layout.increment_prepaint_depth();
9393 let text_style = TextStyleRefinement {
9394 font_size: Some(self.style.text.font_size),
9395 line_height: Some(self.style.text.line_height),
9396 ..Default::default()
9397 };
9398
9399 let is_minimap = self.editor.read(cx).mode.is_minimap();
9400 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
9401
9402 if !is_minimap {
9403 let focus_handle = self.editor.focus_handle(cx);
9404 window.set_view_id(self.editor.entity_id());
9405 window.set_focus_handle(&focus_handle, cx);
9406 }
9407
9408 let rem_size = self.rem_size(cx);
9409 window.with_rem_size(rem_size, |window| {
9410 window.with_text_style(Some(text_style), |window| {
9411 window.with_content_mask(Some(ContentMask { bounds }), |window| {
9412 let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| {
9413 (editor.snapshot(window, cx), editor.read_only(cx))
9414 });
9415 let style = &self.style;
9416
9417 let rem_size = window.rem_size();
9418 let font_id = window.text_system().resolve_font(&style.text.font());
9419 let font_size = style.text.font_size.to_pixels(rem_size);
9420 let line_height = style.text.line_height_in_pixels(rem_size);
9421 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
9422 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
9423 let glyph_grid_cell = size(em_advance, line_height);
9424
9425 let gutter_dimensions =
9426 snapshot.gutter_dimensions(font_id, font_size, style, window, cx);
9427 let text_width = bounds.size.width - gutter_dimensions.width;
9428
9429 let settings = EditorSettings::get_global(cx);
9430 let scrollbars_shown = settings.scrollbar.show != ShowScrollbar::Never;
9431 let vertical_scrollbar_width = (scrollbars_shown
9432 && settings.scrollbar.axes.vertical
9433 && self.editor.read(cx).show_scrollbars.vertical)
9434 .then_some(style.scrollbar_width)
9435 .unwrap_or_default();
9436 let minimap_width = self
9437 .get_minimap_width(
9438 &settings.minimap,
9439 scrollbars_shown,
9440 text_width,
9441 em_width,
9442 font_size,
9443 rem_size,
9444 cx,
9445 )
9446 .unwrap_or_default();
9447
9448 let right_margin = minimap_width + vertical_scrollbar_width;
9449
9450 let editor_width =
9451 text_width - gutter_dimensions.margin - 2 * em_width - right_margin;
9452 let editor_margins = EditorMargins {
9453 gutter: gutter_dimensions,
9454 right: right_margin,
9455 };
9456
9457 snapshot = self.editor.update(cx, |editor, cx| {
9458 editor.last_bounds = Some(bounds);
9459 editor.gutter_dimensions = gutter_dimensions;
9460 editor.set_visible_line_count(
9461 (bounds.size.height / line_height) as f64,
9462 window,
9463 cx,
9464 );
9465 editor.set_visible_column_count(f64::from(editor_width / em_advance));
9466
9467 if matches!(
9468 editor.mode,
9469 EditorMode::AutoHeight { .. } | EditorMode::Minimap { .. }
9470 ) {
9471 snapshot
9472 } else {
9473 let wrap_width_for = |column: u32| (column as f32 * em_advance).ceil();
9474 let wrap_width = match editor.soft_wrap_mode(cx) {
9475 SoftWrap::GitDiff => None,
9476 SoftWrap::None => Some(wrap_width_for(MAX_LINE_LEN as u32 / 2)),
9477 SoftWrap::EditorWidth => Some(editor_width),
9478 SoftWrap::Column(column) => Some(wrap_width_for(column)),
9479 SoftWrap::Bounded(column) => {
9480 Some(editor_width.min(wrap_width_for(column)))
9481 }
9482 };
9483
9484 if editor.set_wrap_width(wrap_width, cx) {
9485 editor.snapshot(window, cx)
9486 } else {
9487 snapshot
9488 }
9489 }
9490 });
9491
9492 let hitbox = window.insert_hitbox(bounds, HitboxBehavior::Normal);
9493 let gutter_hitbox = window.insert_hitbox(
9494 gutter_bounds(bounds, gutter_dimensions),
9495 HitboxBehavior::Normal,
9496 );
9497 let text_hitbox = window.insert_hitbox(
9498 Bounds {
9499 origin: gutter_hitbox.top_right(),
9500 size: size(text_width, bounds.size.height),
9501 },
9502 HitboxBehavior::Normal,
9503 );
9504
9505 // Offset the content_bounds from the text_bounds by the gutter margin (which
9506 // is roughly half a character wide) to make hit testing work more like how we want.
9507 let content_offset = point(editor_margins.gutter.margin, Pixels::ZERO);
9508 let content_origin = text_hitbox.origin + content_offset;
9509
9510 let height_in_lines = f64::from(bounds.size.height / line_height);
9511 let max_row = snapshot.max_point().row().as_f64();
9512
9513 // Calculate how much of the editor is clipped by parent containers (e.g., List).
9514 // This allows us to only render lines that are actually visible, which is
9515 // critical for performance when large AutoHeight editors are inside Lists.
9516 let visible_bounds = window.content_mask().bounds;
9517 let clipped_top = (visible_bounds.origin.y - bounds.origin.y).max(px(0.));
9518 let clipped_top_in_lines = f64::from(clipped_top / line_height);
9519 let visible_height_in_lines =
9520 f64::from(visible_bounds.size.height / line_height);
9521
9522 // The max scroll position for the top of the window
9523 let max_scroll_top = if matches!(
9524 snapshot.mode,
9525 EditorMode::SingleLine
9526 | EditorMode::AutoHeight { .. }
9527 | EditorMode::Full {
9528 sizing_behavior: SizingBehavior::ExcludeOverscrollMargin
9529 | SizingBehavior::SizeByContent,
9530 ..
9531 }
9532 ) {
9533 (max_row - height_in_lines + 1.).max(0.)
9534 } else {
9535 let settings = EditorSettings::get_global(cx);
9536 match settings.scroll_beyond_last_line {
9537 ScrollBeyondLastLine::OnePage => max_row,
9538 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
9539 ScrollBeyondLastLine::VerticalScrollMargin => {
9540 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
9541 .max(0.)
9542 }
9543 }
9544 };
9545
9546 let (
9547 autoscroll_request,
9548 autoscroll_containing_element,
9549 needs_horizontal_autoscroll,
9550 ) = self.editor.update(cx, |editor, cx| {
9551 let autoscroll_request = editor.scroll_manager.take_autoscroll_request();
9552
9553 let autoscroll_containing_element =
9554 autoscroll_request.is_some() || editor.has_pending_selection();
9555
9556 let (needs_horizontal_autoscroll, was_scrolled) = editor
9557 .autoscroll_vertically(
9558 bounds,
9559 line_height,
9560 max_scroll_top,
9561 autoscroll_request,
9562 window,
9563 cx,
9564 );
9565 if was_scrolled.0 {
9566 snapshot = editor.snapshot(window, cx);
9567 }
9568 (
9569 autoscroll_request,
9570 autoscroll_containing_element,
9571 needs_horizontal_autoscroll,
9572 )
9573 });
9574
9575 let mut scroll_position = snapshot.scroll_position();
9576 // The scroll position is a fractional point, the whole number of which represents
9577 // the top of the window in terms of display rows.
9578 // We add clipped_top_in_lines to skip rows that are clipped by parent containers,
9579 // but we don't modify scroll_position itself since the parent handles positioning.
9580 let max_row = snapshot.max_point().row();
9581 let start_row = cmp::min(
9582 DisplayRow((scroll_position.y + clipped_top_in_lines).floor() as u32),
9583 max_row,
9584 );
9585 let end_row = cmp::min(
9586 (scroll_position.y + clipped_top_in_lines + visible_height_in_lines).ceil()
9587 as u32,
9588 max_row.next_row().0,
9589 );
9590 let end_row = DisplayRow(end_row);
9591
9592 let row_infos = snapshot // note we only get the visual range
9593 .row_infos(start_row)
9594 .take((start_row..end_row).len())
9595 .collect::<Vec<RowInfo>>();
9596 let is_row_soft_wrapped = |row: usize| {
9597 row_infos
9598 .get(row)
9599 .is_none_or(|info| info.buffer_row.is_none())
9600 };
9601
9602 let start_anchor = if start_row == Default::default() {
9603 Anchor::min()
9604 } else {
9605 snapshot.buffer_snapshot().anchor_before(
9606 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
9607 )
9608 };
9609 let end_anchor = if end_row > max_row {
9610 Anchor::max()
9611 } else {
9612 snapshot.buffer_snapshot().anchor_before(
9613 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
9614 )
9615 };
9616
9617 let mut highlighted_rows = self
9618 .editor
9619 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
9620
9621 let is_light = cx.theme().appearance().is_light();
9622
9623 let mut highlighted_ranges = self
9624 .editor_with_selections(cx)
9625 .map(|editor| {
9626 editor.read(cx).background_highlights_in_range(
9627 start_anchor..end_anchor,
9628 &snapshot.display_snapshot,
9629 cx.theme(),
9630 )
9631 })
9632 .unwrap_or_default();
9633
9634 for (ix, row_info) in row_infos.iter().enumerate() {
9635 let Some(diff_status) = row_info.diff_status else {
9636 continue;
9637 };
9638
9639 let background_color = match diff_status.kind {
9640 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
9641 DiffHunkStatusKind::Deleted => {
9642 cx.theme().colors().version_control_deleted
9643 }
9644 DiffHunkStatusKind::Modified => {
9645 debug_panic!("modified diff status for row info");
9646 continue;
9647 }
9648 };
9649
9650 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
9651
9652 let hollow_highlight = LineHighlight {
9653 background: (background_color.opacity(if is_light {
9654 0.08
9655 } else {
9656 0.06
9657 }))
9658 .into(),
9659 border: Some(if is_light {
9660 background_color.opacity(0.48)
9661 } else {
9662 background_color.opacity(0.36)
9663 }),
9664 include_gutter: true,
9665 type_id: None,
9666 };
9667
9668 let filled_highlight = LineHighlight {
9669 background: solid_background(background_color.opacity(hunk_opacity)),
9670 border: None,
9671 include_gutter: true,
9672 type_id: None,
9673 };
9674
9675 let background = if Self::diff_hunk_hollow(diff_status, cx) {
9676 hollow_highlight
9677 } else {
9678 filled_highlight
9679 };
9680
9681 let base_display_point =
9682 DisplayPoint::new(start_row + DisplayRow(ix as u32), 0);
9683
9684 highlighted_rows
9685 .entry(base_display_point.row())
9686 .or_insert(background);
9687 }
9688
9689 let highlighted_gutter_ranges =
9690 self.editor.read(cx).gutter_highlights_in_range(
9691 start_anchor..end_anchor,
9692 &snapshot.display_snapshot,
9693 cx,
9694 );
9695
9696 let document_colors = self
9697 .editor
9698 .read(cx)
9699 .colors
9700 .as_ref()
9701 .map(|colors| colors.editor_display_highlights(&snapshot));
9702 let redacted_ranges = self.editor.read(cx).redacted_ranges(
9703 start_anchor..end_anchor,
9704 &snapshot.display_snapshot,
9705 cx,
9706 );
9707
9708 let (local_selections, selected_buffer_ids, latest_selection_anchors): (
9709 Vec<Selection<Point>>,
9710 Vec<BufferId>,
9711 HashMap<BufferId, Anchor>,
9712 ) = self
9713 .editor_with_selections(cx)
9714 .map(|editor| {
9715 editor.update(cx, |editor, cx| {
9716 let all_selections =
9717 editor.selections.all::<Point>(&snapshot.display_snapshot);
9718 let all_anchor_selections =
9719 editor.selections.all_anchors(&snapshot.display_snapshot);
9720 let selected_buffer_ids =
9721 if editor.buffer_kind(cx) == ItemBufferKind::Singleton {
9722 Vec::new()
9723 } else {
9724 let mut selected_buffer_ids =
9725 Vec::with_capacity(all_selections.len());
9726
9727 for selection in all_selections {
9728 for buffer_id in snapshot
9729 .buffer_snapshot()
9730 .buffer_ids_for_range(selection.range())
9731 {
9732 if selected_buffer_ids.last() != Some(&buffer_id) {
9733 selected_buffer_ids.push(buffer_id);
9734 }
9735 }
9736 }
9737
9738 selected_buffer_ids
9739 };
9740
9741 let mut selections = editor.selections.disjoint_in_range(
9742 start_anchor..end_anchor,
9743 &snapshot.display_snapshot,
9744 );
9745 selections
9746 .extend(editor.selections.pending(&snapshot.display_snapshot));
9747
9748 let mut anchors_by_buffer: HashMap<BufferId, (usize, Anchor)> =
9749 HashMap::default();
9750 for selection in all_anchor_selections.iter() {
9751 let head = selection.head();
9752 if let Some(buffer_id) = head.text_anchor.buffer_id {
9753 anchors_by_buffer
9754 .entry(buffer_id)
9755 .and_modify(|(latest_id, latest_anchor)| {
9756 if selection.id > *latest_id {
9757 *latest_id = selection.id;
9758 *latest_anchor = head;
9759 }
9760 })
9761 .or_insert((selection.id, head));
9762 }
9763 }
9764 let latest_selection_anchors = anchors_by_buffer
9765 .into_iter()
9766 .map(|(buffer_id, (_, anchor))| (buffer_id, anchor))
9767 .collect();
9768
9769 (selections, selected_buffer_ids, latest_selection_anchors)
9770 })
9771 })
9772 .unwrap_or_else(|| (Vec::new(), Vec::new(), HashMap::default()));
9773
9774 let (selections, mut active_rows, newest_selection_head) = self
9775 .layout_selections(
9776 start_anchor,
9777 end_anchor,
9778 &local_selections,
9779 &snapshot,
9780 start_row,
9781 end_row,
9782 window,
9783 cx,
9784 );
9785
9786 // relative rows are based on newest selection, even outside the visible area
9787 let current_selection_head = self.editor.update(cx, |editor, cx| {
9788 (editor.selections.count() != 0).then(|| {
9789 let newest = editor
9790 .selections
9791 .newest::<Point>(&editor.display_snapshot(cx));
9792
9793 SelectionLayout::new(
9794 newest,
9795 editor.selections.line_mode(),
9796 editor.cursor_offset_on_selection,
9797 editor.cursor_shape,
9798 &snapshot,
9799 true,
9800 true,
9801 None,
9802 )
9803 .head
9804 .row()
9805 })
9806 });
9807
9808 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
9809 editor.active_breakpoints(start_row..end_row, window, cx)
9810 });
9811 for (display_row, (_, bp, state)) in &breakpoint_rows {
9812 if bp.is_enabled() && state.is_none_or(|s| s.verified) {
9813 active_rows.entry(*display_row).or_default().breakpoint = true;
9814 }
9815 }
9816
9817 let line_numbers = self.layout_line_numbers(
9818 Some(&gutter_hitbox),
9819 gutter_dimensions,
9820 line_height,
9821 scroll_position,
9822 start_row..end_row,
9823 &row_infos,
9824 &active_rows,
9825 current_selection_head,
9826 &snapshot,
9827 window,
9828 cx,
9829 );
9830
9831 // We add the gutter breakpoint indicator to breakpoint_rows after painting
9832 // line numbers so we don't paint a line number debug accent color if a user
9833 // has their mouse over that line when a breakpoint isn't there
9834 self.editor.update(cx, |editor, _| {
9835 if let Some(phantom_breakpoint) = &mut editor
9836 .gutter_breakpoint_indicator
9837 .0
9838 .filter(|phantom_breakpoint| phantom_breakpoint.is_active)
9839 {
9840 // Is there a non-phantom breakpoint on this line?
9841 phantom_breakpoint.collides_with_existing_breakpoint = true;
9842 breakpoint_rows
9843 .entry(phantom_breakpoint.display_row)
9844 .or_insert_with(|| {
9845 let position = snapshot.display_point_to_anchor(
9846 DisplayPoint::new(phantom_breakpoint.display_row, 0),
9847 Bias::Right,
9848 );
9849 let breakpoint = Breakpoint::new_standard();
9850 phantom_breakpoint.collides_with_existing_breakpoint = false;
9851 (position, breakpoint, None)
9852 });
9853 }
9854 });
9855
9856 let mut expand_toggles =
9857 window.with_element_namespace("expand_toggles", |window| {
9858 self.layout_expand_toggles(
9859 &gutter_hitbox,
9860 gutter_dimensions,
9861 em_width,
9862 line_height,
9863 scroll_position,
9864 &row_infos,
9865 window,
9866 cx,
9867 )
9868 });
9869
9870 let mut crease_toggles =
9871 window.with_element_namespace("crease_toggles", |window| {
9872 self.layout_crease_toggles(
9873 start_row..end_row,
9874 &row_infos,
9875 &active_rows,
9876 &snapshot,
9877 window,
9878 cx,
9879 )
9880 });
9881 let crease_trailers =
9882 window.with_element_namespace("crease_trailers", |window| {
9883 self.layout_crease_trailers(
9884 row_infos.iter().cloned(),
9885 &snapshot,
9886 window,
9887 cx,
9888 )
9889 });
9890
9891 let display_hunks = self.layout_gutter_diff_hunks(
9892 line_height,
9893 &gutter_hitbox,
9894 start_row..end_row,
9895 &snapshot,
9896 window,
9897 cx,
9898 );
9899
9900 Self::layout_word_diff_highlights(
9901 &display_hunks,
9902 &row_infos,
9903 start_row,
9904 &snapshot,
9905 &mut highlighted_ranges,
9906 cx,
9907 );
9908
9909 let merged_highlighted_ranges =
9910 if let Some((_, colors)) = document_colors.as_ref() {
9911 &highlighted_ranges
9912 .clone()
9913 .into_iter()
9914 .chain(colors.clone())
9915 .collect()
9916 } else {
9917 &highlighted_ranges
9918 };
9919 let bg_segments_per_row = Self::bg_segments_per_row(
9920 start_row..end_row,
9921 &selections,
9922 &merged_highlighted_ranges,
9923 self.style.background,
9924 );
9925
9926 let mut line_layouts = Self::layout_lines(
9927 start_row..end_row,
9928 &snapshot,
9929 &self.style,
9930 editor_width,
9931 is_row_soft_wrapped,
9932 &bg_segments_per_row,
9933 window,
9934 cx,
9935 );
9936 let new_renderer_widths = (!is_minimap).then(|| {
9937 line_layouts
9938 .iter()
9939 .flat_map(|layout| &layout.fragments)
9940 .filter_map(|fragment| {
9941 if let LineFragment::Element { id, size, .. } = fragment {
9942 Some((*id, size.width))
9943 } else {
9944 None
9945 }
9946 })
9947 });
9948 if new_renderer_widths.is_some_and(|new_renderer_widths| {
9949 self.editor.update(cx, |editor, cx| {
9950 editor.update_renderer_widths(new_renderer_widths, cx)
9951 })
9952 }) {
9953 // If the fold widths have changed, we need to prepaint
9954 // the element again to account for any changes in
9955 // wrapping.
9956 if request_layout.can_prepaint() {
9957 return self.prepaint(
9958 None,
9959 _inspector_id,
9960 bounds,
9961 request_layout,
9962 window,
9963 cx,
9964 );
9965 } else {
9966 debug_panic!(concat!(
9967 "skipping recursive prepaint at max depth. ",
9968 "renderer widths may be stale."
9969 ));
9970 }
9971 }
9972
9973 let longest_line_blame_width = self
9974 .editor
9975 .update(cx, |editor, cx| {
9976 if !editor.show_git_blame_inline {
9977 return None;
9978 }
9979 let blame = editor.blame.as_ref()?;
9980 let (_, blame_entry) = blame
9981 .update(cx, |blame, cx| {
9982 let row_infos =
9983 snapshot.row_infos(snapshot.longest_row()).next()?;
9984 blame.blame_for_rows(&[row_infos], cx).next()
9985 })
9986 .flatten()?;
9987 let mut element = render_inline_blame_entry(blame_entry, style, cx)?;
9988 let inline_blame_padding =
9989 ProjectSettings::get_global(cx).git.inline_blame.padding as f32
9990 * em_advance;
9991 Some(
9992 element
9993 .layout_as_root(AvailableSpace::min_size(), window, cx)
9994 .width
9995 + inline_blame_padding,
9996 )
9997 })
9998 .unwrap_or(Pixels::ZERO);
9999
10000 let longest_line_width = layout_line(
10001 snapshot.longest_row(),
10002 &snapshot,
10003 style,
10004 editor_width,
10005 is_row_soft_wrapped,
10006 window,
10007 cx,
10008 )
10009 .width;
10010
10011 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
10012 text_hitbox.bounds,
10013 glyph_grid_cell,
10014 size(
10015 longest_line_width,
10016 Pixels::from(max_row.as_f64() * f64::from(line_height)),
10017 ),
10018 longest_line_blame_width,
10019 EditorSettings::get_global(cx),
10020 );
10021
10022 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
10023
10024 let sticky_header_excerpt = if snapshot.buffer_snapshot().show_headers() {
10025 snapshot.sticky_header_excerpt(scroll_position.y)
10026 } else {
10027 None
10028 };
10029 let sticky_header_excerpt_id =
10030 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
10031
10032 let blocks = (!is_minimap)
10033 .then(|| {
10034 window.with_element_namespace("blocks", |window| {
10035 self.render_blocks(
10036 start_row..end_row,
10037 &snapshot,
10038 &hitbox,
10039 &text_hitbox,
10040 editor_width,
10041 &mut scroll_width,
10042 &editor_margins,
10043 em_width,
10044 gutter_dimensions.full_width(),
10045 line_height,
10046 &mut line_layouts,
10047 &local_selections,
10048 &selected_buffer_ids,
10049 &latest_selection_anchors,
10050 is_row_soft_wrapped,
10051 sticky_header_excerpt_id,
10052 window,
10053 cx,
10054 )
10055 })
10056 })
10057 .unwrap_or_default();
10058 let RenderBlocksOutput {
10059 mut blocks,
10060 row_block_types,
10061 resized_blocks,
10062 } = blocks;
10063 if let Some(resized_blocks) = resized_blocks {
10064 self.editor.update(cx, |editor, cx| {
10065 editor.resize_blocks(
10066 resized_blocks,
10067 autoscroll_request.map(|(autoscroll, _)| autoscroll),
10068 cx,
10069 )
10070 });
10071 if request_layout.can_prepaint() {
10072 return self.prepaint(
10073 None,
10074 _inspector_id,
10075 bounds,
10076 request_layout,
10077 window,
10078 cx,
10079 );
10080 } else {
10081 debug_panic!(concat!(
10082 "skipping recursive prepaint at max depth. ",
10083 "block layout may be stale."
10084 ));
10085 }
10086 }
10087
10088 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
10089 window.with_element_namespace("blocks", |window| {
10090 self.layout_sticky_buffer_header(
10091 sticky_header_excerpt,
10092 scroll_position,
10093 line_height,
10094 right_margin,
10095 &snapshot,
10096 &hitbox,
10097 &selected_buffer_ids,
10098 &blocks,
10099 &latest_selection_anchors,
10100 window,
10101 cx,
10102 )
10103 })
10104 });
10105
10106 let start_buffer_row =
10107 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot()).row);
10108 let end_buffer_row =
10109 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot()).row);
10110
10111 let scroll_max: gpui::Point<ScrollPixelOffset> = point(
10112 ScrollPixelOffset::from(
10113 ((scroll_width - editor_width) / em_advance).max(0.0),
10114 ),
10115 max_scroll_top,
10116 );
10117
10118 self.editor.update(cx, |editor, cx| {
10119 if editor.scroll_manager.clamp_scroll_left(scroll_max.x) {
10120 scroll_position.x = scroll_position.x.min(scroll_max.x);
10121 }
10122
10123 if needs_horizontal_autoscroll.0
10124 && let Some(new_scroll_position) = editor.autoscroll_horizontally(
10125 start_row,
10126 editor_width,
10127 scroll_width,
10128 em_advance,
10129 &line_layouts,
10130 autoscroll_request,
10131 window,
10132 cx,
10133 )
10134 {
10135 scroll_position = new_scroll_position;
10136 }
10137 });
10138
10139 let scroll_pixel_position = point(
10140 scroll_position.x * f64::from(em_advance),
10141 scroll_position.y * f64::from(line_height),
10142 );
10143 let sticky_headers = if !is_minimap
10144 && is_singleton
10145 && EditorSettings::get_global(cx).sticky_scroll.enabled
10146 {
10147 let relative = self.editor.read(cx).relative_line_numbers(cx);
10148 self.layout_sticky_headers(
10149 &snapshot,
10150 editor_width,
10151 is_row_soft_wrapped,
10152 line_height,
10153 scroll_pixel_position,
10154 content_origin,
10155 &gutter_dimensions,
10156 &gutter_hitbox,
10157 &text_hitbox,
10158 &style,
10159 relative,
10160 current_selection_head,
10161 window,
10162 cx,
10163 )
10164 } else {
10165 None
10166 };
10167 let indent_guides = self.layout_indent_guides(
10168 content_origin,
10169 text_hitbox.origin,
10170 start_buffer_row..end_buffer_row,
10171 scroll_pixel_position,
10172 line_height,
10173 &snapshot,
10174 window,
10175 cx,
10176 );
10177
10178 let crease_trailers =
10179 window.with_element_namespace("crease_trailers", |window| {
10180 self.prepaint_crease_trailers(
10181 crease_trailers,
10182 &line_layouts,
10183 line_height,
10184 content_origin,
10185 scroll_pixel_position,
10186 em_width,
10187 window,
10188 cx,
10189 )
10190 });
10191
10192 let (edit_prediction_popover, edit_prediction_popover_origin) = self
10193 .editor
10194 .update(cx, |editor, cx| {
10195 editor.render_edit_prediction_popover(
10196 &text_hitbox.bounds,
10197 content_origin,
10198 right_margin,
10199 &snapshot,
10200 start_row..end_row,
10201 scroll_position.y,
10202 scroll_position.y + height_in_lines,
10203 &line_layouts,
10204 line_height,
10205 scroll_position,
10206 scroll_pixel_position,
10207 newest_selection_head,
10208 editor_width,
10209 style,
10210 window,
10211 cx,
10212 )
10213 })
10214 .unzip();
10215
10216 let mut inline_diagnostics = self.layout_inline_diagnostics(
10217 &line_layouts,
10218 &crease_trailers,
10219 &row_block_types,
10220 content_origin,
10221 scroll_position,
10222 scroll_pixel_position,
10223 edit_prediction_popover_origin,
10224 start_row,
10225 end_row,
10226 line_height,
10227 em_width,
10228 style,
10229 window,
10230 cx,
10231 );
10232
10233 let mut inline_blame_layout = None;
10234 let mut inline_code_actions = None;
10235 if let Some(newest_selection_head) = newest_selection_head {
10236 let display_row = newest_selection_head.row();
10237 if (start_row..end_row).contains(&display_row)
10238 && !row_block_types.contains_key(&display_row)
10239 {
10240 inline_code_actions = self.layout_inline_code_actions(
10241 newest_selection_head,
10242 content_origin,
10243 scroll_position,
10244 scroll_pixel_position,
10245 line_height,
10246 &snapshot,
10247 window,
10248 cx,
10249 );
10250
10251 let line_ix = display_row.minus(start_row) as usize;
10252 if let (Some(row_info), Some(line_layout), Some(crease_trailer)) = (
10253 row_infos.get(line_ix),
10254 line_layouts.get(line_ix),
10255 crease_trailers.get(line_ix),
10256 ) {
10257 let crease_trailer_layout = crease_trailer.as_ref();
10258 if let Some(layout) = self.layout_inline_blame(
10259 display_row,
10260 row_info,
10261 line_layout,
10262 crease_trailer_layout,
10263 em_width,
10264 content_origin,
10265 scroll_position,
10266 scroll_pixel_position,
10267 line_height,
10268 window,
10269 cx,
10270 ) {
10271 inline_blame_layout = Some(layout);
10272 // Blame overrides inline diagnostics
10273 inline_diagnostics.remove(&display_row);
10274 }
10275 } else {
10276 log::error!(
10277 "bug: line_ix {} is out of bounds - row_infos.len(): {}, \
10278 line_layouts.len(): {}, \
10279 crease_trailers.len(): {}",
10280 line_ix,
10281 row_infos.len(),
10282 line_layouts.len(),
10283 crease_trailers.len(),
10284 );
10285 }
10286 }
10287 }
10288
10289 let blamed_display_rows = self.layout_blame_entries(
10290 &row_infos,
10291 em_width,
10292 scroll_position,
10293 line_height,
10294 &gutter_hitbox,
10295 gutter_dimensions.git_blame_entries_width,
10296 window,
10297 cx,
10298 );
10299
10300 let line_elements = self.prepaint_lines(
10301 start_row,
10302 &mut line_layouts,
10303 line_height,
10304 scroll_position,
10305 scroll_pixel_position,
10306 content_origin,
10307 window,
10308 cx,
10309 );
10310
10311 window.with_element_namespace("blocks", |window| {
10312 self.layout_blocks(
10313 &mut blocks,
10314 &hitbox,
10315 line_height,
10316 scroll_position,
10317 scroll_pixel_position,
10318 window,
10319 cx,
10320 );
10321 });
10322
10323 let cursors = self.collect_cursors(&snapshot, cx);
10324 let visible_row_range = start_row..end_row;
10325 let non_visible_cursors = cursors
10326 .iter()
10327 .any(|c| !visible_row_range.contains(&c.0.row()));
10328
10329 let visible_cursors = self.layout_visible_cursors(
10330 &snapshot,
10331 &selections,
10332 &row_block_types,
10333 start_row..end_row,
10334 &line_layouts,
10335 &text_hitbox,
10336 content_origin,
10337 scroll_position,
10338 scroll_pixel_position,
10339 line_height,
10340 em_width,
10341 em_advance,
10342 autoscroll_containing_element,
10343 window,
10344 cx,
10345 );
10346
10347 let scrollbars_layout = self.layout_scrollbars(
10348 &snapshot,
10349 &scrollbar_layout_information,
10350 content_offset,
10351 scroll_position,
10352 non_visible_cursors,
10353 right_margin,
10354 editor_width,
10355 window,
10356 cx,
10357 );
10358
10359 let gutter_settings = EditorSettings::get_global(cx).gutter;
10360
10361 let context_menu_layout =
10362 if let Some(newest_selection_head) = newest_selection_head {
10363 let newest_selection_point =
10364 newest_selection_head.to_point(&snapshot.display_snapshot);
10365 if (start_row..end_row).contains(&newest_selection_head.row()) {
10366 self.layout_cursor_popovers(
10367 line_height,
10368 &text_hitbox,
10369 content_origin,
10370 right_margin,
10371 start_row,
10372 scroll_pixel_position,
10373 &line_layouts,
10374 newest_selection_head,
10375 newest_selection_point,
10376 style,
10377 window,
10378 cx,
10379 )
10380 } else {
10381 None
10382 }
10383 } else {
10384 None
10385 };
10386
10387 self.layout_gutter_menu(
10388 line_height,
10389 &text_hitbox,
10390 content_origin,
10391 right_margin,
10392 scroll_pixel_position,
10393 gutter_dimensions.width - gutter_dimensions.left_padding,
10394 window,
10395 cx,
10396 );
10397
10398 let test_indicators = if gutter_settings.runnables {
10399 self.layout_run_indicators(
10400 line_height,
10401 start_row..end_row,
10402 &row_infos,
10403 scroll_position,
10404 &gutter_dimensions,
10405 &gutter_hitbox,
10406 &display_hunks,
10407 &snapshot,
10408 &mut breakpoint_rows,
10409 window,
10410 cx,
10411 )
10412 } else {
10413 Vec::new()
10414 };
10415
10416 let show_breakpoints = snapshot
10417 .show_breakpoints
10418 .unwrap_or(gutter_settings.breakpoints);
10419 let breakpoints = if show_breakpoints {
10420 self.layout_breakpoints(
10421 line_height,
10422 start_row..end_row,
10423 scroll_position,
10424 &gutter_dimensions,
10425 &gutter_hitbox,
10426 &display_hunks,
10427 &snapshot,
10428 breakpoint_rows,
10429 &row_infos,
10430 window,
10431 cx,
10432 )
10433 } else {
10434 Vec::new()
10435 };
10436
10437 let diff_review_button = self
10438 .should_render_diff_review_button(start_row..end_row, &row_infos, cx)
10439 .map(|display_row| {
10440 prepaint_gutter_button(
10441 Self::diff_review_button(),
10442 display_row,
10443 line_height,
10444 &gutter_dimensions,
10445 scroll_position,
10446 &gutter_hitbox,
10447 &display_hunks,
10448 window,
10449 cx,
10450 )
10451 });
10452
10453 self.layout_signature_help(
10454 &hitbox,
10455 content_origin,
10456 scroll_pixel_position,
10457 newest_selection_head,
10458 start_row,
10459 &line_layouts,
10460 line_height,
10461 em_width,
10462 context_menu_layout,
10463 window,
10464 cx,
10465 );
10466
10467 if !cx.has_active_drag() {
10468 self.layout_hover_popovers(
10469 &snapshot,
10470 &hitbox,
10471 start_row..end_row,
10472 content_origin,
10473 scroll_pixel_position,
10474 &line_layouts,
10475 line_height,
10476 em_width,
10477 context_menu_layout,
10478 window,
10479 cx,
10480 );
10481
10482 self.layout_blame_popover(&snapshot, &hitbox, line_height, window, cx);
10483 }
10484
10485 let mouse_context_menu = self.layout_mouse_context_menu(
10486 &snapshot,
10487 start_row..end_row,
10488 content_origin,
10489 window,
10490 cx,
10491 );
10492
10493 window.with_element_namespace("crease_toggles", |window| {
10494 self.prepaint_crease_toggles(
10495 &mut crease_toggles,
10496 line_height,
10497 &gutter_dimensions,
10498 gutter_settings,
10499 scroll_pixel_position,
10500 &gutter_hitbox,
10501 window,
10502 cx,
10503 )
10504 });
10505
10506 window.with_element_namespace("expand_toggles", |window| {
10507 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
10508 });
10509
10510 let wrap_guides = self.layout_wrap_guides(
10511 em_advance,
10512 scroll_position,
10513 content_origin,
10514 scrollbars_layout.as_ref(),
10515 vertical_scrollbar_width,
10516 &hitbox,
10517 window,
10518 cx,
10519 );
10520
10521 let minimap = window.with_element_namespace("minimap", |window| {
10522 self.layout_minimap(
10523 &snapshot,
10524 minimap_width,
10525 scroll_position,
10526 &scrollbar_layout_information,
10527 scrollbars_layout.as_ref(),
10528 window,
10529 cx,
10530 )
10531 });
10532
10533 let invisible_symbol_font_size = font_size / 2.;
10534 let whitespace_map = &self
10535 .editor
10536 .read(cx)
10537 .buffer
10538 .read(cx)
10539 .language_settings(cx)
10540 .whitespace_map;
10541
10542 let tab_char = whitespace_map.tab.clone();
10543 let tab_len = tab_char.len();
10544 let tab_invisible = window.text_system().shape_line(
10545 tab_char,
10546 invisible_symbol_font_size,
10547 &[TextRun {
10548 len: tab_len,
10549 font: self.style.text.font(),
10550 color: cx.theme().colors().editor_invisible,
10551 ..Default::default()
10552 }],
10553 None,
10554 );
10555
10556 let space_char = whitespace_map.space.clone();
10557 let space_len = space_char.len();
10558 let space_invisible = window.text_system().shape_line(
10559 space_char,
10560 invisible_symbol_font_size,
10561 &[TextRun {
10562 len: space_len,
10563 font: self.style.text.font(),
10564 color: cx.theme().colors().editor_invisible,
10565 ..Default::default()
10566 }],
10567 None,
10568 );
10569
10570 let mode = snapshot.mode.clone();
10571
10572 let (diff_hunk_controls, diff_hunk_control_bounds) = if is_read_only {
10573 (vec![], vec![])
10574 } else {
10575 self.layout_diff_hunk_controls(
10576 start_row..end_row,
10577 &row_infos,
10578 &text_hitbox,
10579 newest_selection_head,
10580 line_height,
10581 right_margin,
10582 scroll_pixel_position,
10583 &display_hunks,
10584 &highlighted_rows,
10585 self.editor.clone(),
10586 window,
10587 cx,
10588 )
10589 };
10590
10591 let position_map = Rc::new(PositionMap {
10592 size: bounds.size,
10593 visible_row_range,
10594 scroll_position,
10595 scroll_pixel_position,
10596 scroll_max,
10597 line_layouts,
10598 line_height,
10599 em_width,
10600 em_advance,
10601 snapshot,
10602 text_align: self.style.text.text_align,
10603 content_width: text_hitbox.size.width,
10604 gutter_hitbox: gutter_hitbox.clone(),
10605 text_hitbox: text_hitbox.clone(),
10606 inline_blame_bounds: inline_blame_layout
10607 .as_ref()
10608 .map(|layout| (layout.bounds, layout.buffer_id, layout.entry.clone())),
10609 display_hunks: display_hunks.clone(),
10610 diff_hunk_control_bounds,
10611 });
10612
10613 self.editor.update(cx, |editor, _| {
10614 editor.last_position_map = Some(position_map.clone())
10615 });
10616
10617 EditorLayout {
10618 mode,
10619 position_map,
10620 visible_display_row_range: start_row..end_row,
10621 wrap_guides,
10622 indent_guides,
10623 hitbox,
10624 gutter_hitbox,
10625 display_hunks,
10626 content_origin,
10627 scrollbars_layout,
10628 minimap,
10629 active_rows,
10630 highlighted_rows,
10631 highlighted_ranges,
10632 highlighted_gutter_ranges,
10633 redacted_ranges,
10634 document_colors,
10635 line_elements,
10636 line_numbers,
10637 blamed_display_rows,
10638 inline_diagnostics,
10639 inline_blame_layout,
10640 inline_code_actions,
10641 blocks,
10642 cursors,
10643 visible_cursors,
10644 selections,
10645 edit_prediction_popover,
10646 diff_hunk_controls,
10647 mouse_context_menu,
10648 test_indicators,
10649 breakpoints,
10650 diff_review_button,
10651 crease_toggles,
10652 crease_trailers,
10653 tab_invisible,
10654 space_invisible,
10655 sticky_buffer_header,
10656 sticky_headers,
10657 expand_toggles,
10658 text_align: self.style.text.text_align,
10659 content_width: text_hitbox.size.width,
10660 }
10661 })
10662 })
10663 })
10664 }
10665
10666 fn paint(
10667 &mut self,
10668 _: Option<&GlobalElementId>,
10669 _inspector_id: Option<&gpui::InspectorElementId>,
10670 bounds: Bounds<gpui::Pixels>,
10671 _: &mut Self::RequestLayoutState,
10672 layout: &mut Self::PrepaintState,
10673 window: &mut Window,
10674 cx: &mut App,
10675 ) {
10676 if !layout.mode.is_minimap() {
10677 let focus_handle = self.editor.focus_handle(cx);
10678 let key_context = self
10679 .editor
10680 .update(cx, |editor, cx| editor.key_context(window, cx));
10681
10682 window.set_key_context(key_context);
10683 window.handle_input(
10684 &focus_handle,
10685 ElementInputHandler::new(bounds, self.editor.clone()),
10686 cx,
10687 );
10688 self.register_actions(window, cx);
10689 self.register_key_listeners(window, cx, layout);
10690 }
10691
10692 let text_style = TextStyleRefinement {
10693 font_size: Some(self.style.text.font_size),
10694 line_height: Some(self.style.text.line_height),
10695 ..Default::default()
10696 };
10697 let rem_size = self.rem_size(cx);
10698 window.with_rem_size(rem_size, |window| {
10699 window.with_text_style(Some(text_style), |window| {
10700 window.with_content_mask(Some(ContentMask { bounds }), |window| {
10701 self.paint_mouse_listeners(layout, window, cx);
10702 self.paint_background(layout, window, cx);
10703 self.paint_indent_guides(layout, window, cx);
10704
10705 if layout.gutter_hitbox.size.width > Pixels::ZERO {
10706 self.paint_blamed_display_rows(layout, window, cx);
10707 self.paint_line_numbers(layout, window, cx);
10708 }
10709
10710 self.paint_text(layout, window, cx);
10711
10712 if layout.gutter_hitbox.size.width > Pixels::ZERO {
10713 self.paint_gutter_highlights(layout, window, cx);
10714 self.paint_gutter_indicators(layout, window, cx);
10715 }
10716
10717 if !layout.blocks.is_empty() {
10718 window.with_element_namespace("blocks", |window| {
10719 self.paint_blocks(layout, window, cx);
10720 });
10721 }
10722
10723 window.with_element_namespace("blocks", |window| {
10724 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
10725 sticky_header.paint(window, cx)
10726 }
10727 });
10728
10729 self.paint_sticky_headers(layout, window, cx);
10730 self.paint_minimap(layout, window, cx);
10731 self.paint_scrollbars(layout, window, cx);
10732 self.paint_edit_prediction_popover(layout, window, cx);
10733 self.paint_mouse_context_menu(layout, window, cx);
10734 });
10735 })
10736 })
10737 }
10738}
10739
10740pub(super) fn gutter_bounds(
10741 editor_bounds: Bounds<Pixels>,
10742 gutter_dimensions: GutterDimensions,
10743) -> Bounds<Pixels> {
10744 Bounds {
10745 origin: editor_bounds.origin,
10746 size: size(gutter_dimensions.width, editor_bounds.size.height),
10747 }
10748}
10749
10750#[derive(Clone, Copy)]
10751struct ContextMenuLayout {
10752 y_flipped: bool,
10753 bounds: Bounds<Pixels>,
10754}
10755
10756/// Holds information required for layouting the editor scrollbars.
10757struct ScrollbarLayoutInformation {
10758 /// The bounds of the editor area (excluding the content offset).
10759 editor_bounds: Bounds<Pixels>,
10760 /// The available range to scroll within the document.
10761 scroll_range: Size<Pixels>,
10762 /// The space available for one glyph in the editor.
10763 glyph_grid_cell: Size<Pixels>,
10764}
10765
10766impl ScrollbarLayoutInformation {
10767 pub fn new(
10768 editor_bounds: Bounds<Pixels>,
10769 glyph_grid_cell: Size<Pixels>,
10770 document_size: Size<Pixels>,
10771 longest_line_blame_width: Pixels,
10772 settings: &EditorSettings,
10773 ) -> Self {
10774 let vertical_overscroll = match settings.scroll_beyond_last_line {
10775 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
10776 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
10777 ScrollBeyondLastLine::VerticalScrollMargin => {
10778 (1.0 + settings.vertical_scroll_margin) as f32 * glyph_grid_cell.height
10779 }
10780 };
10781
10782 let overscroll = size(longest_line_blame_width, vertical_overscroll);
10783
10784 ScrollbarLayoutInformation {
10785 editor_bounds,
10786 scroll_range: document_size + overscroll,
10787 glyph_grid_cell,
10788 }
10789 }
10790}
10791
10792impl IntoElement for EditorElement {
10793 type Element = Self;
10794
10795 fn into_element(self) -> Self::Element {
10796 self
10797 }
10798}
10799
10800pub struct EditorLayout {
10801 position_map: Rc<PositionMap>,
10802 hitbox: Hitbox,
10803 gutter_hitbox: Hitbox,
10804 content_origin: gpui::Point<Pixels>,
10805 scrollbars_layout: Option<EditorScrollbars>,
10806 minimap: Option<MinimapLayout>,
10807 mode: EditorMode,
10808 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
10809 indent_guides: Option<Vec<IndentGuideLayout>>,
10810 visible_display_row_range: Range<DisplayRow>,
10811 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
10812 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
10813 line_elements: SmallVec<[AnyElement; 1]>,
10814 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
10815 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
10816 blamed_display_rows: Option<Vec<AnyElement>>,
10817 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
10818 inline_blame_layout: Option<InlineBlameLayout>,
10819 inline_code_actions: Option<AnyElement>,
10820 blocks: Vec<BlockLayout>,
10821 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
10822 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
10823 redacted_ranges: Vec<Range<DisplayPoint>>,
10824 cursors: Vec<(DisplayPoint, Hsla)>,
10825 visible_cursors: Vec<CursorLayout>,
10826 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
10827 test_indicators: Vec<AnyElement>,
10828 breakpoints: Vec<AnyElement>,
10829 diff_review_button: Option<AnyElement>,
10830 crease_toggles: Vec<Option<AnyElement>>,
10831 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
10832 diff_hunk_controls: Vec<AnyElement>,
10833 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
10834 edit_prediction_popover: Option<AnyElement>,
10835 mouse_context_menu: Option<AnyElement>,
10836 tab_invisible: ShapedLine,
10837 space_invisible: ShapedLine,
10838 sticky_buffer_header: Option<AnyElement>,
10839 sticky_headers: Option<StickyHeaders>,
10840 document_colors: Option<(DocumentColorsRenderMode, Vec<(Range<DisplayPoint>, Hsla)>)>,
10841 text_align: TextAlign,
10842 content_width: Pixels,
10843}
10844
10845struct StickyHeaders {
10846 lines: Vec<StickyHeaderLine>,
10847 gutter_background: Hsla,
10848 content_background: Hsla,
10849 gutter_right_padding: Pixels,
10850}
10851
10852struct StickyHeaderLine {
10853 row: DisplayRow,
10854 offset: Pixels,
10855 line: LineWithInvisibles,
10856 line_number: Option<ShapedLine>,
10857 elements: SmallVec<[AnyElement; 1]>,
10858 available_text_width: Pixels,
10859 target_anchor: Anchor,
10860 hitbox: Hitbox,
10861}
10862
10863impl EditorLayout {
10864 fn line_end_overshoot(&self) -> Pixels {
10865 0.15 * self.position_map.line_height
10866 }
10867}
10868
10869impl StickyHeaders {
10870 fn paint(
10871 &mut self,
10872 layout: &mut EditorLayout,
10873 whitespace_setting: ShowWhitespaceSetting,
10874 window: &mut Window,
10875 cx: &mut App,
10876 ) {
10877 let line_height = layout.position_map.line_height;
10878
10879 for line in self.lines.iter_mut().rev() {
10880 window.paint_layer(
10881 Bounds::new(
10882 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
10883 size(line.hitbox.size.width, line_height),
10884 ),
10885 |window| {
10886 let gutter_bounds = Bounds::new(
10887 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
10888 size(layout.gutter_hitbox.size.width, line_height),
10889 );
10890 window.paint_quad(fill(gutter_bounds, self.gutter_background));
10891
10892 let text_bounds = Bounds::new(
10893 layout.position_map.text_hitbox.origin + point(Pixels::ZERO, line.offset),
10894 size(line.available_text_width, line_height),
10895 );
10896 window.paint_quad(fill(text_bounds, self.content_background));
10897
10898 if line.hitbox.is_hovered(window) {
10899 let hover_overlay = cx.theme().colors().panel_overlay_hover;
10900 window.paint_quad(fill(gutter_bounds, hover_overlay));
10901 window.paint_quad(fill(text_bounds, hover_overlay));
10902 }
10903
10904 line.paint(
10905 layout,
10906 self.gutter_right_padding,
10907 line.available_text_width,
10908 layout.content_origin,
10909 line_height,
10910 whitespace_setting,
10911 window,
10912 cx,
10913 );
10914 },
10915 );
10916
10917 window.set_cursor_style(CursorStyle::PointingHand, &line.hitbox);
10918 }
10919 }
10920}
10921
10922impl StickyHeaderLine {
10923 fn new(
10924 row: DisplayRow,
10925 offset: Pixels,
10926 mut line: LineWithInvisibles,
10927 line_number: Option<ShapedLine>,
10928 target_anchor: Anchor,
10929 line_height: Pixels,
10930 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
10931 content_origin: gpui::Point<Pixels>,
10932 gutter_hitbox: &Hitbox,
10933 text_hitbox: &Hitbox,
10934 window: &mut Window,
10935 cx: &mut App,
10936 ) -> Self {
10937 let mut elements = SmallVec::<[AnyElement; 1]>::new();
10938 line.prepaint_with_custom_offset(
10939 line_height,
10940 scroll_pixel_position,
10941 content_origin,
10942 offset,
10943 &mut elements,
10944 window,
10945 cx,
10946 );
10947
10948 let hitbox_bounds = Bounds::new(
10949 gutter_hitbox.origin + point(Pixels::ZERO, offset),
10950 size(text_hitbox.right() - gutter_hitbox.left(), line_height),
10951 );
10952 let available_text_width =
10953 (hitbox_bounds.size.width - gutter_hitbox.size.width).max(Pixels::ZERO);
10954
10955 Self {
10956 row,
10957 offset,
10958 line,
10959 line_number,
10960 elements,
10961 available_text_width,
10962 target_anchor,
10963 hitbox: window.insert_hitbox(hitbox_bounds, HitboxBehavior::BlockMouseExceptScroll),
10964 }
10965 }
10966
10967 fn paint(
10968 &mut self,
10969 layout: &EditorLayout,
10970 gutter_right_padding: Pixels,
10971 available_text_width: Pixels,
10972 content_origin: gpui::Point<Pixels>,
10973 line_height: Pixels,
10974 whitespace_setting: ShowWhitespaceSetting,
10975 window: &mut Window,
10976 cx: &mut App,
10977 ) {
10978 window.with_content_mask(
10979 Some(ContentMask {
10980 bounds: Bounds::new(
10981 layout.position_map.text_hitbox.bounds.origin
10982 + point(Pixels::ZERO, self.offset),
10983 size(available_text_width, line_height),
10984 ),
10985 }),
10986 |window| {
10987 self.line.draw_with_custom_offset(
10988 layout,
10989 self.row,
10990 content_origin,
10991 self.offset,
10992 whitespace_setting,
10993 &[],
10994 window,
10995 cx,
10996 );
10997 for element in &mut self.elements {
10998 element.paint(window, cx);
10999 }
11000 },
11001 );
11002
11003 if let Some(line_number) = &self.line_number {
11004 let gutter_origin = layout.gutter_hitbox.origin + point(Pixels::ZERO, self.offset);
11005 let gutter_width = layout.gutter_hitbox.size.width;
11006 let origin = point(
11007 gutter_origin.x + gutter_width - gutter_right_padding - line_number.width,
11008 gutter_origin.y,
11009 );
11010 line_number
11011 .paint(origin, line_height, TextAlign::Left, None, window, cx)
11012 .log_err();
11013 }
11014 }
11015}
11016
11017#[derive(Debug)]
11018struct LineNumberSegment {
11019 shaped_line: ShapedLine,
11020 hitbox: Option<Hitbox>,
11021}
11022
11023#[derive(Debug)]
11024struct LineNumberLayout {
11025 segments: SmallVec<[LineNumberSegment; 1]>,
11026}
11027
11028struct ColoredRange<T> {
11029 start: T,
11030 end: T,
11031 color: Hsla,
11032}
11033
11034impl Along for ScrollbarAxes {
11035 type Unit = bool;
11036
11037 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
11038 match axis {
11039 ScrollbarAxis::Horizontal => self.horizontal,
11040 ScrollbarAxis::Vertical => self.vertical,
11041 }
11042 }
11043
11044 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
11045 match axis {
11046 ScrollbarAxis::Horizontal => ScrollbarAxes {
11047 horizontal: f(self.horizontal),
11048 vertical: self.vertical,
11049 },
11050 ScrollbarAxis::Vertical => ScrollbarAxes {
11051 horizontal: self.horizontal,
11052 vertical: f(self.vertical),
11053 },
11054 }
11055 }
11056}
11057
11058#[derive(Clone)]
11059struct EditorScrollbars {
11060 pub vertical: Option<ScrollbarLayout>,
11061 pub horizontal: Option<ScrollbarLayout>,
11062 pub visible: bool,
11063}
11064
11065impl EditorScrollbars {
11066 pub fn from_scrollbar_axes(
11067 show_scrollbar: ScrollbarAxes,
11068 layout_information: &ScrollbarLayoutInformation,
11069 content_offset: gpui::Point<Pixels>,
11070 scroll_position: gpui::Point<f64>,
11071 scrollbar_width: Pixels,
11072 right_margin: Pixels,
11073 editor_width: Pixels,
11074 show_scrollbars: bool,
11075 scrollbar_state: Option<&ActiveScrollbarState>,
11076 window: &mut Window,
11077 ) -> Self {
11078 let ScrollbarLayoutInformation {
11079 editor_bounds,
11080 scroll_range,
11081 glyph_grid_cell,
11082 } = layout_information;
11083
11084 let viewport_size = size(editor_width, editor_bounds.size.height);
11085
11086 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
11087 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
11088 Corner::BottomLeft,
11089 editor_bounds.bottom_left(),
11090 size(
11091 // The horizontal viewport size differs from the space available for the
11092 // horizontal scrollbar, so we have to manually stitch it together here.
11093 editor_bounds.size.width - right_margin,
11094 scrollbar_width,
11095 ),
11096 ),
11097 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
11098 Corner::TopRight,
11099 editor_bounds.top_right(),
11100 size(scrollbar_width, viewport_size.height),
11101 ),
11102 };
11103
11104 let mut create_scrollbar_layout = |axis| {
11105 let viewport_size = viewport_size.along(axis);
11106 let scroll_range = scroll_range.along(axis);
11107
11108 // We always want a vertical scrollbar track for scrollbar diagnostic visibility.
11109 (show_scrollbar.along(axis)
11110 && (axis == ScrollbarAxis::Vertical || scroll_range > viewport_size))
11111 .then(|| {
11112 ScrollbarLayout::new(
11113 window.insert_hitbox(scrollbar_bounds_for(axis), HitboxBehavior::Normal),
11114 viewport_size,
11115 scroll_range,
11116 glyph_grid_cell.along(axis),
11117 content_offset.along(axis),
11118 scroll_position.along(axis),
11119 show_scrollbars,
11120 axis,
11121 )
11122 .with_thumb_state(
11123 scrollbar_state.and_then(|state| state.thumb_state_for_axis(axis)),
11124 )
11125 })
11126 };
11127
11128 Self {
11129 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
11130 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
11131 visible: show_scrollbars,
11132 }
11133 }
11134
11135 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
11136 [
11137 (&self.vertical, ScrollbarAxis::Vertical),
11138 (&self.horizontal, ScrollbarAxis::Horizontal),
11139 ]
11140 .into_iter()
11141 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
11142 }
11143
11144 /// Returns the currently hovered scrollbar axis, if any.
11145 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
11146 self.iter_scrollbars()
11147 .find(|s| s.0.hitbox.is_hovered(window))
11148 }
11149}
11150
11151#[derive(Clone)]
11152struct ScrollbarLayout {
11153 hitbox: Hitbox,
11154 visible_range: Range<ScrollOffset>,
11155 text_unit_size: Pixels,
11156 thumb_bounds: Option<Bounds<Pixels>>,
11157 thumb_state: ScrollbarThumbState,
11158}
11159
11160impl ScrollbarLayout {
11161 const BORDER_WIDTH: Pixels = px(1.0);
11162 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
11163 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
11164 const MIN_THUMB_SIZE: Pixels = px(25.0);
11165
11166 fn new(
11167 scrollbar_track_hitbox: Hitbox,
11168 viewport_size: Pixels,
11169 scroll_range: Pixels,
11170 glyph_space: Pixels,
11171 content_offset: Pixels,
11172 scroll_position: ScrollOffset,
11173 show_thumb: bool,
11174 axis: ScrollbarAxis,
11175 ) -> Self {
11176 let track_bounds = scrollbar_track_hitbox.bounds;
11177 // The length of the track available to the scrollbar thumb. We deliberately
11178 // exclude the content size here so that the thumb aligns with the content.
11179 let track_length = track_bounds.size.along(axis) - content_offset;
11180
11181 Self::new_with_hitbox_and_track_length(
11182 scrollbar_track_hitbox,
11183 track_length,
11184 viewport_size,
11185 scroll_range.into(),
11186 glyph_space,
11187 content_offset.into(),
11188 scroll_position,
11189 show_thumb,
11190 axis,
11191 )
11192 }
11193
11194 fn for_minimap(
11195 minimap_track_hitbox: Hitbox,
11196 visible_lines: f64,
11197 total_editor_lines: f64,
11198 minimap_line_height: Pixels,
11199 scroll_position: ScrollOffset,
11200 minimap_scroll_top: ScrollOffset,
11201 show_thumb: bool,
11202 ) -> Self {
11203 // The scrollbar thumb size is calculated as
11204 // (visible_content/total_content) Γ scrollbar_track_length.
11205 //
11206 // For the minimap's thumb layout, we leverage this by setting the
11207 // scrollbar track length to the entire document size (using minimap line
11208 // height). This creates a thumb that exactly represents the editor
11209 // viewport scaled to minimap proportions.
11210 //
11211 // We adjust the thumb position relative to `minimap_scroll_top` to
11212 // accommodate for the deliberately oversized track.
11213 //
11214 // This approach ensures that the minimap thumb accurately reflects the
11215 // editor's current scroll position whilst nicely synchronizing the minimap
11216 // thumb and scrollbar thumb.
11217 let scroll_range = total_editor_lines * f64::from(minimap_line_height);
11218 let viewport_size = visible_lines * f64::from(minimap_line_height);
11219
11220 let track_top_offset = -minimap_scroll_top * f64::from(minimap_line_height);
11221
11222 Self::new_with_hitbox_and_track_length(
11223 minimap_track_hitbox,
11224 Pixels::from(scroll_range),
11225 Pixels::from(viewport_size),
11226 scroll_range,
11227 minimap_line_height,
11228 track_top_offset,
11229 scroll_position,
11230 show_thumb,
11231 ScrollbarAxis::Vertical,
11232 )
11233 }
11234
11235 fn new_with_hitbox_and_track_length(
11236 scrollbar_track_hitbox: Hitbox,
11237 track_length: Pixels,
11238 viewport_size: Pixels,
11239 scroll_range: f64,
11240 glyph_space: Pixels,
11241 content_offset: ScrollOffset,
11242 scroll_position: ScrollOffset,
11243 show_thumb: bool,
11244 axis: ScrollbarAxis,
11245 ) -> Self {
11246 let text_units_per_page = viewport_size.to_f64() / glyph_space.to_f64();
11247 let visible_range = scroll_position..scroll_position + text_units_per_page;
11248 let total_text_units = scroll_range / glyph_space.to_f64();
11249
11250 let thumb_percentage = text_units_per_page / total_text_units;
11251 let thumb_size = Pixels::from(ScrollOffset::from(track_length) * thumb_percentage)
11252 .max(ScrollbarLayout::MIN_THUMB_SIZE)
11253 .min(track_length);
11254
11255 let text_unit_divisor = (total_text_units - text_units_per_page).max(0.);
11256
11257 let content_larger_than_viewport = text_unit_divisor > 0.;
11258
11259 let text_unit_size = if content_larger_than_viewport {
11260 Pixels::from(ScrollOffset::from(track_length - thumb_size) / text_unit_divisor)
11261 } else {
11262 glyph_space
11263 };
11264
11265 let thumb_bounds = (show_thumb && content_larger_than_viewport).then(|| {
11266 Self::thumb_bounds(
11267 &scrollbar_track_hitbox,
11268 content_offset,
11269 visible_range.start,
11270 text_unit_size,
11271 thumb_size,
11272 axis,
11273 )
11274 });
11275
11276 ScrollbarLayout {
11277 hitbox: scrollbar_track_hitbox,
11278 visible_range,
11279 text_unit_size,
11280 thumb_bounds,
11281 thumb_state: Default::default(),
11282 }
11283 }
11284
11285 fn with_thumb_state(self, thumb_state: Option<ScrollbarThumbState>) -> Self {
11286 if let Some(thumb_state) = thumb_state {
11287 Self {
11288 thumb_state,
11289 ..self
11290 }
11291 } else {
11292 self
11293 }
11294 }
11295
11296 fn thumb_bounds(
11297 scrollbar_track: &Hitbox,
11298 content_offset: f64,
11299 visible_range_start: f64,
11300 text_unit_size: Pixels,
11301 thumb_size: Pixels,
11302 axis: ScrollbarAxis,
11303 ) -> Bounds<Pixels> {
11304 let thumb_origin = scrollbar_track.origin.apply_along(axis, |origin| {
11305 origin
11306 + Pixels::from(
11307 content_offset + visible_range_start * ScrollOffset::from(text_unit_size),
11308 )
11309 });
11310 Bounds::new(
11311 thumb_origin,
11312 scrollbar_track.size.apply_along(axis, |_| thumb_size),
11313 )
11314 }
11315
11316 fn thumb_hovered(&self, position: &gpui::Point<Pixels>) -> bool {
11317 self.thumb_bounds
11318 .is_some_and(|bounds| bounds.contains(position))
11319 }
11320
11321 fn marker_quads_for_ranges(
11322 &self,
11323 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
11324 column: Option<usize>,
11325 ) -> Vec<PaintQuad> {
11326 struct MinMax {
11327 min: Pixels,
11328 max: Pixels,
11329 }
11330 let (x_range, height_limit) = if let Some(column) = column {
11331 let column_width = ((self.hitbox.size.width - Self::BORDER_WIDTH) / 3.0).floor();
11332 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
11333 let end = start + column_width;
11334 (
11335 Range { start, end },
11336 MinMax {
11337 min: Self::MIN_MARKER_HEIGHT,
11338 max: px(f32::MAX),
11339 },
11340 )
11341 } else {
11342 (
11343 Range {
11344 start: Self::BORDER_WIDTH,
11345 end: self.hitbox.size.width,
11346 },
11347 MinMax {
11348 min: Self::LINE_MARKER_HEIGHT,
11349 max: Self::LINE_MARKER_HEIGHT,
11350 },
11351 )
11352 };
11353
11354 let row_to_y = |row: DisplayRow| row.as_f64() as f32 * self.text_unit_size;
11355 let mut pixel_ranges = row_ranges
11356 .into_iter()
11357 .map(|range| {
11358 let start_y = row_to_y(range.start);
11359 let end_y = row_to_y(range.end)
11360 + self
11361 .text_unit_size
11362 .max(height_limit.min)
11363 .min(height_limit.max);
11364 ColoredRange {
11365 start: start_y,
11366 end: end_y,
11367 color: range.color,
11368 }
11369 })
11370 .peekable();
11371
11372 let mut quads = Vec::new();
11373 while let Some(mut pixel_range) = pixel_ranges.next() {
11374 while let Some(next_pixel_range) = pixel_ranges.peek() {
11375 if pixel_range.end >= next_pixel_range.start - px(1.0)
11376 && pixel_range.color == next_pixel_range.color
11377 {
11378 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
11379 pixel_ranges.next();
11380 } else {
11381 break;
11382 }
11383 }
11384
11385 let bounds = Bounds::from_corners(
11386 point(x_range.start, pixel_range.start),
11387 point(x_range.end, pixel_range.end),
11388 );
11389 quads.push(quad(
11390 bounds,
11391 Corners::default(),
11392 pixel_range.color,
11393 Edges::default(),
11394 Hsla::transparent_black(),
11395 BorderStyle::default(),
11396 ));
11397 }
11398
11399 quads
11400 }
11401}
11402
11403struct MinimapLayout {
11404 pub minimap: AnyElement,
11405 pub thumb_layout: ScrollbarLayout,
11406 pub minimap_scroll_top: ScrollOffset,
11407 pub minimap_line_height: Pixels,
11408 pub thumb_border_style: MinimapThumbBorder,
11409 pub max_scroll_top: ScrollOffset,
11410}
11411
11412impl MinimapLayout {
11413 /// The minimum width of the minimap in columns. If the minimap is smaller than this, it will be hidden.
11414 const MINIMAP_MIN_WIDTH_COLUMNS: f32 = 20.;
11415 /// The minimap width as a percentage of the editor width.
11416 const MINIMAP_WIDTH_PCT: f32 = 0.15;
11417 /// Calculates the scroll top offset the minimap editor has to have based on the
11418 /// current scroll progress.
11419 fn calculate_minimap_top_offset(
11420 document_lines: f64,
11421 visible_editor_lines: f64,
11422 visible_minimap_lines: f64,
11423 scroll_position: f64,
11424 ) -> ScrollOffset {
11425 let non_visible_document_lines = (document_lines - visible_editor_lines).max(0.);
11426 if non_visible_document_lines == 0. {
11427 0.
11428 } else {
11429 let scroll_percentage = (scroll_position / non_visible_document_lines).clamp(0., 1.);
11430 scroll_percentage * (document_lines - visible_minimap_lines).max(0.)
11431 }
11432 }
11433}
11434
11435struct CreaseTrailerLayout {
11436 element: AnyElement,
11437 bounds: Bounds<Pixels>,
11438}
11439
11440pub(crate) struct PositionMap {
11441 pub size: Size<Pixels>,
11442 pub line_height: Pixels,
11443 pub scroll_position: gpui::Point<ScrollOffset>,
11444 pub scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
11445 pub scroll_max: gpui::Point<ScrollOffset>,
11446 pub em_width: Pixels,
11447 pub em_advance: Pixels,
11448 pub visible_row_range: Range<DisplayRow>,
11449 pub line_layouts: Vec<LineWithInvisibles>,
11450 pub snapshot: EditorSnapshot,
11451 pub text_align: TextAlign,
11452 pub content_width: Pixels,
11453 pub text_hitbox: Hitbox,
11454 pub gutter_hitbox: Hitbox,
11455 pub inline_blame_bounds: Option<(Bounds<Pixels>, BufferId, BlameEntry)>,
11456 pub display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
11457 pub diff_hunk_control_bounds: Vec<(DisplayRow, Bounds<Pixels>)>,
11458}
11459
11460#[derive(Debug, Copy, Clone)]
11461pub struct PointForPosition {
11462 pub previous_valid: DisplayPoint,
11463 pub next_valid: DisplayPoint,
11464 pub exact_unclipped: DisplayPoint,
11465 pub column_overshoot_after_line_end: u32,
11466}
11467
11468impl PointForPosition {
11469 pub fn as_valid(&self) -> Option<DisplayPoint> {
11470 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
11471 Some(self.previous_valid)
11472 } else {
11473 None
11474 }
11475 }
11476
11477 pub fn intersects_selection(&self, selection: &Selection<DisplayPoint>) -> bool {
11478 let Some(valid_point) = self.as_valid() else {
11479 return false;
11480 };
11481 let range = selection.range();
11482
11483 let candidate_row = valid_point.row();
11484 let candidate_col = valid_point.column();
11485
11486 let start_row = range.start.row();
11487 let start_col = range.start.column();
11488 let end_row = range.end.row();
11489 let end_col = range.end.column();
11490
11491 if candidate_row < start_row || candidate_row > end_row {
11492 false
11493 } else if start_row == end_row {
11494 candidate_col >= start_col && candidate_col < end_col
11495 } else if candidate_row == start_row {
11496 candidate_col >= start_col
11497 } else if candidate_row == end_row {
11498 candidate_col < end_col
11499 } else {
11500 true
11501 }
11502 }
11503}
11504
11505impl PositionMap {
11506 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
11507 let text_bounds = self.text_hitbox.bounds;
11508 let scroll_position = self.snapshot.scroll_position();
11509 let position = position - text_bounds.origin;
11510 let y = position.y.max(px(0.)).min(self.size.height);
11511 let x = position.x + (scroll_position.x as f32 * self.em_advance);
11512 let row = ((y / self.line_height) as f64 + scroll_position.y) as u32;
11513
11514 let (column, x_overshoot_after_line_end) = if let Some(line) = self
11515 .line_layouts
11516 .get(row as usize - scroll_position.y as usize)
11517 {
11518 let alignment_offset = line.alignment_offset(self.text_align, self.content_width);
11519 let x_relative_to_text = x - alignment_offset;
11520 if let Some(ix) = line.index_for_x(x_relative_to_text) {
11521 (ix as u32, px(0.))
11522 } else {
11523 (line.len as u32, px(0.).max(x_relative_to_text - line.width))
11524 }
11525 } else {
11526 (0, x)
11527 };
11528
11529 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
11530 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
11531 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
11532
11533 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
11534 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
11535 PointForPosition {
11536 previous_valid,
11537 next_valid,
11538 exact_unclipped,
11539 column_overshoot_after_line_end,
11540 }
11541 }
11542}
11543
11544struct BlockLayout {
11545 id: BlockId,
11546 x_offset: Pixels,
11547 row: Option<DisplayRow>,
11548 element: AnyElement,
11549 available_space: Size<AvailableSpace>,
11550 style: BlockStyle,
11551 overlaps_gutter: bool,
11552 is_buffer_header: bool,
11553}
11554
11555pub fn layout_line(
11556 row: DisplayRow,
11557 snapshot: &EditorSnapshot,
11558 style: &EditorStyle,
11559 text_width: Pixels,
11560 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
11561 window: &mut Window,
11562 cx: &mut App,
11563) -> LineWithInvisibles {
11564 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
11565 LineWithInvisibles::from_chunks(
11566 chunks,
11567 style,
11568 MAX_LINE_LEN,
11569 1,
11570 &snapshot.mode,
11571 text_width,
11572 is_row_soft_wrapped,
11573 &[],
11574 window,
11575 cx,
11576 )
11577 .pop()
11578 .unwrap()
11579}
11580
11581#[derive(Debug)]
11582pub struct IndentGuideLayout {
11583 origin: gpui::Point<Pixels>,
11584 length: Pixels,
11585 single_indent_width: Pixels,
11586 depth: u32,
11587 active: bool,
11588 settings: IndentGuideSettings,
11589}
11590
11591pub struct CursorLayout {
11592 origin: gpui::Point<Pixels>,
11593 block_width: Pixels,
11594 line_height: Pixels,
11595 color: Hsla,
11596 shape: CursorShape,
11597 block_text: Option<ShapedLine>,
11598 cursor_name: Option<AnyElement>,
11599}
11600
11601#[derive(Debug)]
11602pub struct CursorName {
11603 string: SharedString,
11604 color: Hsla,
11605 is_top_row: bool,
11606}
11607
11608impl CursorLayout {
11609 pub fn new(
11610 origin: gpui::Point<Pixels>,
11611 block_width: Pixels,
11612 line_height: Pixels,
11613 color: Hsla,
11614 shape: CursorShape,
11615 block_text: Option<ShapedLine>,
11616 ) -> CursorLayout {
11617 CursorLayout {
11618 origin,
11619 block_width,
11620 line_height,
11621 color,
11622 shape,
11623 block_text,
11624 cursor_name: None,
11625 }
11626 }
11627
11628 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
11629 Bounds {
11630 origin: self.origin + origin,
11631 size: size(self.block_width, self.line_height),
11632 }
11633 }
11634
11635 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
11636 match self.shape {
11637 CursorShape::Bar => Bounds {
11638 origin: self.origin + origin,
11639 size: size(px(2.0), self.line_height),
11640 },
11641 CursorShape::Block | CursorShape::Hollow => Bounds {
11642 origin: self.origin + origin,
11643 size: size(self.block_width, self.line_height),
11644 },
11645 CursorShape::Underline => Bounds {
11646 origin: self.origin
11647 + origin
11648 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
11649 size: size(self.block_width, px(2.0)),
11650 },
11651 }
11652 }
11653
11654 pub fn layout(
11655 &mut self,
11656 origin: gpui::Point<Pixels>,
11657 cursor_name: Option<CursorName>,
11658 window: &mut Window,
11659 cx: &mut App,
11660 ) {
11661 if let Some(cursor_name) = cursor_name {
11662 let bounds = self.bounds(origin);
11663 let text_size = self.line_height / 1.5;
11664
11665 let name_origin = if cursor_name.is_top_row {
11666 point(bounds.right() - px(1.), bounds.top())
11667 } else {
11668 match self.shape {
11669 CursorShape::Bar => point(
11670 bounds.right() - px(2.),
11671 bounds.top() - text_size / 2. - px(1.),
11672 ),
11673 _ => point(
11674 bounds.right() - px(1.),
11675 bounds.top() - text_size / 2. - px(1.),
11676 ),
11677 }
11678 };
11679 let mut name_element = div()
11680 .bg(self.color)
11681 .text_size(text_size)
11682 .px_0p5()
11683 .line_height(text_size + px(2.))
11684 .text_color(cursor_name.color)
11685 .child(cursor_name.string)
11686 .into_any_element();
11687
11688 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
11689
11690 self.cursor_name = Some(name_element);
11691 }
11692 }
11693
11694 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
11695 let bounds = self.bounds(origin);
11696
11697 //Draw background or border quad
11698 let cursor = if matches!(self.shape, CursorShape::Hollow) {
11699 outline(bounds, self.color, BorderStyle::Solid)
11700 } else {
11701 fill(bounds, self.color)
11702 };
11703
11704 if let Some(name) = &mut self.cursor_name {
11705 name.paint(window, cx);
11706 }
11707
11708 window.paint_quad(cursor);
11709
11710 if let Some(block_text) = &self.block_text {
11711 block_text
11712 .paint(
11713 self.origin + origin,
11714 self.line_height,
11715 TextAlign::Left,
11716 None,
11717 window,
11718 cx,
11719 )
11720 .log_err();
11721 }
11722 }
11723
11724 pub fn shape(&self) -> CursorShape {
11725 self.shape
11726 }
11727}
11728
11729#[derive(Debug)]
11730pub struct HighlightedRange {
11731 pub start_y: Pixels,
11732 pub line_height: Pixels,
11733 pub lines: Vec<HighlightedRangeLine>,
11734 pub color: Hsla,
11735 pub corner_radius: Pixels,
11736}
11737
11738#[derive(Debug)]
11739pub struct HighlightedRangeLine {
11740 pub start_x: Pixels,
11741 pub end_x: Pixels,
11742}
11743
11744impl HighlightedRange {
11745 pub fn paint(&self, fill: bool, bounds: Bounds<Pixels>, window: &mut Window) {
11746 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
11747 self.paint_lines(self.start_y, &self.lines[0..1], fill, bounds, window);
11748 self.paint_lines(
11749 self.start_y + self.line_height,
11750 &self.lines[1..],
11751 fill,
11752 bounds,
11753 window,
11754 );
11755 } else {
11756 self.paint_lines(self.start_y, &self.lines, fill, bounds, window);
11757 }
11758 }
11759
11760 fn paint_lines(
11761 &self,
11762 start_y: Pixels,
11763 lines: &[HighlightedRangeLine],
11764 fill: bool,
11765 _bounds: Bounds<Pixels>,
11766 window: &mut Window,
11767 ) {
11768 if lines.is_empty() {
11769 return;
11770 }
11771
11772 let first_line = lines.first().unwrap();
11773 let last_line = lines.last().unwrap();
11774
11775 let first_top_left = point(first_line.start_x, start_y);
11776 let first_top_right = point(first_line.end_x, start_y);
11777
11778 let curve_height = point(Pixels::ZERO, self.corner_radius);
11779 let curve_width = |start_x: Pixels, end_x: Pixels| {
11780 let max = (end_x - start_x) / 2.;
11781 let width = if max < self.corner_radius {
11782 max
11783 } else {
11784 self.corner_radius
11785 };
11786
11787 point(width, Pixels::ZERO)
11788 };
11789
11790 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
11791 let mut builder = if fill {
11792 gpui::PathBuilder::fill()
11793 } else {
11794 gpui::PathBuilder::stroke(px(1.))
11795 };
11796 builder.move_to(first_top_right - top_curve_width);
11797 builder.curve_to(first_top_right + curve_height, first_top_right);
11798
11799 let mut iter = lines.iter().enumerate().peekable();
11800 while let Some((ix, line)) = iter.next() {
11801 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
11802
11803 if let Some((_, next_line)) = iter.peek() {
11804 let next_top_right = point(next_line.end_x, bottom_right.y);
11805
11806 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
11807 Ordering::Equal => {
11808 builder.line_to(bottom_right);
11809 }
11810 Ordering::Less => {
11811 let curve_width = curve_width(next_top_right.x, bottom_right.x);
11812 builder.line_to(bottom_right - curve_height);
11813 if self.corner_radius > Pixels::ZERO {
11814 builder.curve_to(bottom_right - curve_width, bottom_right);
11815 }
11816 builder.line_to(next_top_right + curve_width);
11817 if self.corner_radius > Pixels::ZERO {
11818 builder.curve_to(next_top_right + curve_height, next_top_right);
11819 }
11820 }
11821 Ordering::Greater => {
11822 let curve_width = curve_width(bottom_right.x, next_top_right.x);
11823 builder.line_to(bottom_right - curve_height);
11824 if self.corner_radius > Pixels::ZERO {
11825 builder.curve_to(bottom_right + curve_width, bottom_right);
11826 }
11827 builder.line_to(next_top_right - curve_width);
11828 if self.corner_radius > Pixels::ZERO {
11829 builder.curve_to(next_top_right + curve_height, next_top_right);
11830 }
11831 }
11832 }
11833 } else {
11834 let curve_width = curve_width(line.start_x, line.end_x);
11835 builder.line_to(bottom_right - curve_height);
11836 if self.corner_radius > Pixels::ZERO {
11837 builder.curve_to(bottom_right - curve_width, bottom_right);
11838 }
11839
11840 let bottom_left = point(line.start_x, bottom_right.y);
11841 builder.line_to(bottom_left + curve_width);
11842 if self.corner_radius > Pixels::ZERO {
11843 builder.curve_to(bottom_left - curve_height, bottom_left);
11844 }
11845 }
11846 }
11847
11848 if first_line.start_x > last_line.start_x {
11849 let curve_width = curve_width(last_line.start_x, first_line.start_x);
11850 let second_top_left = point(last_line.start_x, start_y + self.line_height);
11851 builder.line_to(second_top_left + curve_height);
11852 if self.corner_radius > Pixels::ZERO {
11853 builder.curve_to(second_top_left + curve_width, second_top_left);
11854 }
11855 let first_bottom_left = point(first_line.start_x, second_top_left.y);
11856 builder.line_to(first_bottom_left - curve_width);
11857 if self.corner_radius > Pixels::ZERO {
11858 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
11859 }
11860 }
11861
11862 builder.line_to(first_top_left + curve_height);
11863 if self.corner_radius > Pixels::ZERO {
11864 builder.curve_to(first_top_left + top_curve_width, first_top_left);
11865 }
11866 builder.line_to(first_top_right - top_curve_width);
11867
11868 if let Ok(path) = builder.build() {
11869 window.paint_path(path, self.color);
11870 }
11871 }
11872}
11873
11874pub(crate) struct StickyHeader {
11875 pub item: language::OutlineItem<Anchor>,
11876 pub sticky_row: DisplayRow,
11877 pub start_point: Point,
11878 pub offset: ScrollOffset,
11879}
11880
11881enum CursorPopoverType {
11882 CodeContextMenu,
11883 EditPrediction,
11884}
11885
11886pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
11887 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
11888}
11889
11890fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
11891 (delta.pow(1.2) / 300.0).into()
11892}
11893
11894pub fn register_action<T: Action>(
11895 editor: &Entity<Editor>,
11896 window: &mut Window,
11897 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
11898) {
11899 let editor = editor.clone();
11900 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
11901 let action = action.downcast_ref().unwrap();
11902 if phase == DispatchPhase::Bubble {
11903 editor.update(cx, |editor, cx| {
11904 listener(editor, action, window, cx);
11905 })
11906 }
11907 })
11908}
11909
11910fn compute_auto_height_layout(
11911 editor: &mut Editor,
11912 min_lines: usize,
11913 max_lines: Option<usize>,
11914 known_dimensions: Size<Option<Pixels>>,
11915 available_width: AvailableSpace,
11916 window: &mut Window,
11917 cx: &mut Context<Editor>,
11918) -> Option<Size<Pixels>> {
11919 let width = known_dimensions.width.or({
11920 if let AvailableSpace::Definite(available_width) = available_width {
11921 Some(available_width)
11922 } else {
11923 None
11924 }
11925 })?;
11926 if let Some(height) = known_dimensions.height {
11927 return Some(size(width, height));
11928 }
11929
11930 let style = editor.style.as_ref().unwrap();
11931 let font_id = window.text_system().resolve_font(&style.text.font());
11932 let font_size = style.text.font_size.to_pixels(window.rem_size());
11933 let line_height = style.text.line_height_in_pixels(window.rem_size());
11934 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
11935
11936 let mut snapshot = editor.snapshot(window, cx);
11937 let gutter_dimensions = snapshot.gutter_dimensions(font_id, font_size, style, window, cx);
11938
11939 editor.gutter_dimensions = gutter_dimensions;
11940 let text_width = width - gutter_dimensions.width;
11941 let overscroll = size(em_width, px(0.));
11942
11943 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
11944 if !matches!(editor.soft_wrap_mode(cx), SoftWrap::None)
11945 && editor.set_wrap_width(Some(editor_width), cx)
11946 {
11947 snapshot = editor.snapshot(window, cx);
11948 }
11949
11950 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
11951
11952 let min_height = line_height * min_lines as f32;
11953 let content_height = scroll_height.max(min_height);
11954
11955 let final_height = if let Some(max_lines) = max_lines {
11956 let max_height = line_height * max_lines as f32;
11957 content_height.min(max_height)
11958 } else {
11959 content_height
11960 };
11961
11962 Some(size(width, final_height))
11963}
11964
11965#[cfg(test)]
11966mod tests {
11967 use super::*;
11968 use crate::{
11969 Editor, MultiBuffer, SelectionEffects,
11970 display_map::{BlockPlacement, BlockProperties},
11971 editor_tests::{init_test, update_test_language_settings},
11972 };
11973 use gpui::{TestAppContext, VisualTestContext};
11974 use language::{Buffer, language_settings, tree_sitter_python};
11975 use log::info;
11976 use std::num::NonZeroU32;
11977 use util::test::sample_text;
11978
11979 #[gpui::test]
11980 async fn test_soft_wrap_editor_width_auto_height_editor(cx: &mut TestAppContext) {
11981 init_test(cx, |_| {});
11982
11983 let window = cx.add_window(|window, cx| {
11984 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
11985 let mut editor = Editor::new(
11986 EditorMode::AutoHeight {
11987 min_lines: 1,
11988 max_lines: None,
11989 },
11990 buffer,
11991 None,
11992 window,
11993 cx,
11994 );
11995 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
11996 editor
11997 });
11998 let cx = &mut VisualTestContext::from_window(*window, cx);
11999 let editor = window.root(cx).unwrap();
12000 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12001
12002 for x in 1..=100 {
12003 let (_, state) = cx.draw(
12004 Default::default(),
12005 size(px(200. + 0.13 * x as f32), px(500.)),
12006 |_, _| EditorElement::new(&editor, style.clone()),
12007 );
12008
12009 assert!(
12010 state.position_map.scroll_max.x == 0.,
12011 "Soft wrapped editor should have no horizontal scrolling!"
12012 );
12013 }
12014 }
12015
12016 #[gpui::test]
12017 async fn test_soft_wrap_editor_width_full_editor(cx: &mut TestAppContext) {
12018 init_test(cx, |_| {});
12019
12020 let window = cx.add_window(|window, cx| {
12021 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
12022 let mut editor = Editor::new(EditorMode::full(), buffer, None, window, cx);
12023 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12024 editor
12025 });
12026 let cx = &mut VisualTestContext::from_window(*window, cx);
12027 let editor = window.root(cx).unwrap();
12028 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12029
12030 for x in 1..=100 {
12031 let (_, state) = cx.draw(
12032 Default::default(),
12033 size(px(200. + 0.13 * x as f32), px(500.)),
12034 |_, _| EditorElement::new(&editor, style.clone()),
12035 );
12036
12037 assert!(
12038 state.position_map.scroll_max.x == 0.,
12039 "Soft wrapped editor should have no horizontal scrolling!"
12040 );
12041 }
12042 }
12043
12044 #[gpui::test]
12045 fn test_layout_line_numbers(cx: &mut TestAppContext) {
12046 init_test(cx, |_| {});
12047 let window = cx.add_window(|window, cx| {
12048 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
12049 Editor::new(EditorMode::full(), buffer, None, window, cx)
12050 });
12051
12052 let editor = window.root(cx).unwrap();
12053 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12054 let line_height = window
12055 .update(cx, |_, window, _| {
12056 style.text.line_height_in_pixels(window.rem_size())
12057 })
12058 .unwrap();
12059 let element = EditorElement::new(&editor, style);
12060 let snapshot = window
12061 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
12062 .unwrap();
12063
12064 let layouts = cx
12065 .update_window(*window, |_, window, cx| {
12066 element.layout_line_numbers(
12067 None,
12068 GutterDimensions {
12069 left_padding: Pixels::ZERO,
12070 right_padding: Pixels::ZERO,
12071 width: px(30.0),
12072 margin: Pixels::ZERO,
12073 git_blame_entries_width: None,
12074 },
12075 line_height,
12076 gpui::Point::default(),
12077 DisplayRow(0)..DisplayRow(6),
12078 &(0..6)
12079 .map(|row| RowInfo {
12080 buffer_row: Some(row),
12081 ..Default::default()
12082 })
12083 .collect::<Vec<_>>(),
12084 &BTreeMap::default(),
12085 Some(DisplayRow(0)),
12086 &snapshot,
12087 window,
12088 cx,
12089 )
12090 })
12091 .unwrap();
12092 assert_eq!(layouts.len(), 6);
12093
12094 let relative_rows = window
12095 .update(cx, |editor, window, cx| {
12096 let snapshot = editor.snapshot(window, cx);
12097 snapshot.calculate_relative_line_numbers(
12098 &(DisplayRow(0)..DisplayRow(6)),
12099 DisplayRow(3),
12100 false,
12101 )
12102 })
12103 .unwrap();
12104 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12105 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12106 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12107 // current line has no relative number
12108 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12109 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12110 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12111
12112 // works if cursor is before screen
12113 let relative_rows = window
12114 .update(cx, |editor, window, cx| {
12115 let snapshot = editor.snapshot(window, cx);
12116 snapshot.calculate_relative_line_numbers(
12117 &(DisplayRow(3)..DisplayRow(6)),
12118 DisplayRow(1),
12119 false,
12120 )
12121 })
12122 .unwrap();
12123 assert_eq!(relative_rows.len(), 3);
12124 assert_eq!(relative_rows[&DisplayRow(3)], 2);
12125 assert_eq!(relative_rows[&DisplayRow(4)], 3);
12126 assert_eq!(relative_rows[&DisplayRow(5)], 4);
12127
12128 // works if cursor is after screen
12129 let relative_rows = window
12130 .update(cx, |editor, window, cx| {
12131 let snapshot = editor.snapshot(window, cx);
12132 snapshot.calculate_relative_line_numbers(
12133 &(DisplayRow(0)..DisplayRow(3)),
12134 DisplayRow(6),
12135 false,
12136 )
12137 })
12138 .unwrap();
12139 assert_eq!(relative_rows.len(), 3);
12140 assert_eq!(relative_rows[&DisplayRow(0)], 5);
12141 assert_eq!(relative_rows[&DisplayRow(1)], 4);
12142 assert_eq!(relative_rows[&DisplayRow(2)], 3);
12143
12144 const DELETED_LINE: u32 = 3;
12145 let layouts = cx
12146 .update_window(*window, |_, window, cx| {
12147 element.layout_line_numbers(
12148 None,
12149 GutterDimensions {
12150 left_padding: Pixels::ZERO,
12151 right_padding: Pixels::ZERO,
12152 width: px(30.0),
12153 margin: Pixels::ZERO,
12154 git_blame_entries_width: None,
12155 },
12156 line_height,
12157 gpui::Point::default(),
12158 DisplayRow(0)..DisplayRow(6),
12159 &(0..6)
12160 .map(|row| RowInfo {
12161 buffer_row: Some(row),
12162 diff_status: (row == DELETED_LINE).then(|| {
12163 DiffHunkStatus::deleted(
12164 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
12165 )
12166 }),
12167 ..Default::default()
12168 })
12169 .collect::<Vec<_>>(),
12170 &BTreeMap::default(),
12171 Some(DisplayRow(0)),
12172 &snapshot,
12173 window,
12174 cx,
12175 )
12176 })
12177 .unwrap();
12178 assert_eq!(layouts.len(), 5,);
12179 assert!(
12180 layouts.get(&MultiBufferRow(DELETED_LINE)).is_none(),
12181 "Deleted line should not have a line number"
12182 );
12183 }
12184
12185 #[gpui::test]
12186 async fn test_layout_line_numbers_with_folded_lines(cx: &mut TestAppContext) {
12187 init_test(cx, |_| {});
12188
12189 let python_lang = languages::language("python", tree_sitter_python::LANGUAGE.into());
12190
12191 let window = cx.add_window(|window, cx| {
12192 let buffer = cx.new(|cx| {
12193 Buffer::local(
12194 indoc::indoc! {"
12195 fn test() -> int {
12196 return 2;
12197 }
12198
12199 fn another_test() -> int {
12200 # This is a very peculiar method that is hard to grasp.
12201 return 4;
12202 }
12203 "},
12204 cx,
12205 )
12206 .with_language(python_lang, cx)
12207 });
12208
12209 let buffer = MultiBuffer::build_from_buffer(buffer, cx);
12210 Editor::new(EditorMode::full(), buffer, None, window, cx)
12211 });
12212
12213 let editor = window.root(cx).unwrap();
12214 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12215 let line_height = window
12216 .update(cx, |_, window, _| {
12217 style.text.line_height_in_pixels(window.rem_size())
12218 })
12219 .unwrap();
12220 let element = EditorElement::new(&editor, style);
12221 let snapshot = window
12222 .update(cx, |editor, window, cx| {
12223 editor.fold_at(MultiBufferRow(0), window, cx);
12224 editor.snapshot(window, cx)
12225 })
12226 .unwrap();
12227
12228 let layouts = cx
12229 .update_window(*window, |_, window, cx| {
12230 element.layout_line_numbers(
12231 None,
12232 GutterDimensions {
12233 left_padding: Pixels::ZERO,
12234 right_padding: Pixels::ZERO,
12235 width: px(30.0),
12236 margin: Pixels::ZERO,
12237 git_blame_entries_width: None,
12238 },
12239 line_height,
12240 gpui::Point::default(),
12241 DisplayRow(0)..DisplayRow(6),
12242 &(0..6)
12243 .map(|row| RowInfo {
12244 buffer_row: Some(row),
12245 ..Default::default()
12246 })
12247 .collect::<Vec<_>>(),
12248 &BTreeMap::default(),
12249 Some(DisplayRow(3)),
12250 &snapshot,
12251 window,
12252 cx,
12253 )
12254 })
12255 .unwrap();
12256 assert_eq!(layouts.len(), 6);
12257
12258 let relative_rows = window
12259 .update(cx, |editor, window, cx| {
12260 let snapshot = editor.snapshot(window, cx);
12261 snapshot.calculate_relative_line_numbers(
12262 &(DisplayRow(0)..DisplayRow(6)),
12263 DisplayRow(3),
12264 false,
12265 )
12266 })
12267 .unwrap();
12268 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12269 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12270 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12271 // current line has no relative number
12272 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12273 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12274 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12275 }
12276
12277 #[gpui::test]
12278 fn test_layout_line_numbers_wrapping(cx: &mut TestAppContext) {
12279 init_test(cx, |_| {});
12280 let window = cx.add_window(|window, cx| {
12281 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
12282 Editor::new(EditorMode::full(), buffer, None, window, cx)
12283 });
12284
12285 update_test_language_settings(cx, |s| {
12286 s.defaults.preferred_line_length = Some(5_u32);
12287 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
12288 });
12289
12290 let editor = window.root(cx).unwrap();
12291 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12292 let line_height = window
12293 .update(cx, |_, window, _| {
12294 style.text.line_height_in_pixels(window.rem_size())
12295 })
12296 .unwrap();
12297 let element = EditorElement::new(&editor, style);
12298 let snapshot = window
12299 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
12300 .unwrap();
12301
12302 let layouts = cx
12303 .update_window(*window, |_, window, cx| {
12304 element.layout_line_numbers(
12305 None,
12306 GutterDimensions {
12307 left_padding: Pixels::ZERO,
12308 right_padding: Pixels::ZERO,
12309 width: px(30.0),
12310 margin: Pixels::ZERO,
12311 git_blame_entries_width: None,
12312 },
12313 line_height,
12314 gpui::Point::default(),
12315 DisplayRow(0)..DisplayRow(6),
12316 &(0..6)
12317 .map(|row| RowInfo {
12318 buffer_row: Some(row),
12319 ..Default::default()
12320 })
12321 .collect::<Vec<_>>(),
12322 &BTreeMap::default(),
12323 Some(DisplayRow(0)),
12324 &snapshot,
12325 window,
12326 cx,
12327 )
12328 })
12329 .unwrap();
12330 assert_eq!(layouts.len(), 3);
12331
12332 let relative_rows = window
12333 .update(cx, |editor, window, cx| {
12334 let snapshot = editor.snapshot(window, cx);
12335 snapshot.calculate_relative_line_numbers(
12336 &(DisplayRow(0)..DisplayRow(6)),
12337 DisplayRow(3),
12338 true,
12339 )
12340 })
12341 .unwrap();
12342
12343 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12344 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12345 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12346 // current line has no relative number
12347 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12348 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12349 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12350
12351 let layouts = cx
12352 .update_window(*window, |_, window, cx| {
12353 element.layout_line_numbers(
12354 None,
12355 GutterDimensions {
12356 left_padding: Pixels::ZERO,
12357 right_padding: Pixels::ZERO,
12358 width: px(30.0),
12359 margin: Pixels::ZERO,
12360 git_blame_entries_width: None,
12361 },
12362 line_height,
12363 gpui::Point::default(),
12364 DisplayRow(0)..DisplayRow(6),
12365 &(0..6)
12366 .map(|row| RowInfo {
12367 buffer_row: Some(row),
12368 diff_status: Some(DiffHunkStatus::deleted(
12369 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
12370 )),
12371 ..Default::default()
12372 })
12373 .collect::<Vec<_>>(),
12374 &BTreeMap::from_iter([(DisplayRow(0), LineHighlightSpec::default())]),
12375 Some(DisplayRow(0)),
12376 &snapshot,
12377 window,
12378 cx,
12379 )
12380 })
12381 .unwrap();
12382 assert!(
12383 layouts.is_empty(),
12384 "Deleted lines should have no line number"
12385 );
12386
12387 let relative_rows = window
12388 .update(cx, |editor, window, cx| {
12389 let snapshot = editor.snapshot(window, cx);
12390 snapshot.calculate_relative_line_numbers(
12391 &(DisplayRow(0)..DisplayRow(6)),
12392 DisplayRow(3),
12393 true,
12394 )
12395 })
12396 .unwrap();
12397
12398 // Deleted lines should still have relative numbers
12399 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12400 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12401 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12402 // current line, even if deleted, has no relative number
12403 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12404 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12405 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12406 }
12407
12408 #[gpui::test]
12409 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
12410 init_test(cx, |_| {});
12411
12412 let window = cx.add_window(|window, cx| {
12413 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
12414 Editor::new(EditorMode::full(), buffer, None, window, cx)
12415 });
12416 let cx = &mut VisualTestContext::from_window(*window, cx);
12417 let editor = window.root(cx).unwrap();
12418 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12419
12420 window
12421 .update(cx, |editor, window, cx| {
12422 editor.cursor_offset_on_selection = true;
12423 editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
12424 s.select_ranges([
12425 Point::new(0, 0)..Point::new(1, 0),
12426 Point::new(3, 2)..Point::new(3, 3),
12427 Point::new(5, 6)..Point::new(6, 0),
12428 ]);
12429 });
12430 })
12431 .unwrap();
12432
12433 let (_, state) = cx.draw(
12434 point(px(500.), px(500.)),
12435 size(px(500.), px(500.)),
12436 |_, _| EditorElement::new(&editor, style),
12437 );
12438
12439 assert_eq!(state.selections.len(), 1);
12440 let local_selections = &state.selections[0].1;
12441 assert_eq!(local_selections.len(), 3);
12442 // moves cursor back one line
12443 assert_eq!(
12444 local_selections[0].head,
12445 DisplayPoint::new(DisplayRow(0), 6)
12446 );
12447 assert_eq!(
12448 local_selections[0].range,
12449 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
12450 );
12451
12452 // moves cursor back one column
12453 assert_eq!(
12454 local_selections[1].range,
12455 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
12456 );
12457 assert_eq!(
12458 local_selections[1].head,
12459 DisplayPoint::new(DisplayRow(3), 2)
12460 );
12461
12462 // leaves cursor on the max point
12463 assert_eq!(
12464 local_selections[2].range,
12465 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
12466 );
12467 assert_eq!(
12468 local_selections[2].head,
12469 DisplayPoint::new(DisplayRow(6), 0)
12470 );
12471
12472 // active lines does not include 1 (even though the range of the selection does)
12473 assert_eq!(
12474 state.active_rows.keys().cloned().collect::<Vec<_>>(),
12475 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
12476 );
12477 }
12478
12479 #[gpui::test]
12480 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
12481 init_test(cx, |_| {});
12482
12483 let window = cx.add_window(|window, cx| {
12484 let buffer = MultiBuffer::build_simple("", cx);
12485 Editor::new(EditorMode::full(), buffer, None, window, cx)
12486 });
12487 let cx = &mut VisualTestContext::from_window(*window, cx);
12488 let editor = window.root(cx).unwrap();
12489 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12490 window
12491 .update(cx, |editor, window, cx| {
12492 editor.set_placeholder_text("hello", window, cx);
12493 editor.insert_blocks(
12494 [BlockProperties {
12495 style: BlockStyle::Fixed,
12496 placement: BlockPlacement::Above(Anchor::min()),
12497 height: Some(3),
12498 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
12499 priority: 0,
12500 }],
12501 None,
12502 cx,
12503 );
12504
12505 // Blur the editor so that it displays placeholder text.
12506 window.blur();
12507 })
12508 .unwrap();
12509
12510 let (_, state) = cx.draw(
12511 point(px(500.), px(500.)),
12512 size(px(500.), px(500.)),
12513 |_, _| EditorElement::new(&editor, style),
12514 );
12515 assert_eq!(state.position_map.line_layouts.len(), 4);
12516 assert_eq!(state.line_numbers.len(), 1);
12517 assert_eq!(
12518 state
12519 .line_numbers
12520 .get(&MultiBufferRow(0))
12521 .map(|line_number| line_number
12522 .segments
12523 .first()
12524 .unwrap()
12525 .shaped_line
12526 .text
12527 .as_ref()),
12528 Some("1")
12529 );
12530 }
12531
12532 #[gpui::test]
12533 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
12534 const TAB_SIZE: u32 = 4;
12535
12536 let input_text = "\t \t|\t| a b";
12537 let expected_invisibles = vec![
12538 Invisible::Tab {
12539 line_start_offset: 0,
12540 line_end_offset: TAB_SIZE as usize,
12541 },
12542 Invisible::Whitespace {
12543 line_offset: TAB_SIZE as usize,
12544 },
12545 Invisible::Tab {
12546 line_start_offset: TAB_SIZE as usize + 1,
12547 line_end_offset: TAB_SIZE as usize * 2,
12548 },
12549 Invisible::Tab {
12550 line_start_offset: TAB_SIZE as usize * 2 + 1,
12551 line_end_offset: TAB_SIZE as usize * 3,
12552 },
12553 Invisible::Whitespace {
12554 line_offset: TAB_SIZE as usize * 3 + 1,
12555 },
12556 Invisible::Whitespace {
12557 line_offset: TAB_SIZE as usize * 3 + 3,
12558 },
12559 ];
12560 assert_eq!(
12561 expected_invisibles.len(),
12562 input_text
12563 .chars()
12564 .filter(|initial_char| initial_char.is_whitespace())
12565 .count(),
12566 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
12567 );
12568
12569 for show_line_numbers in [true, false] {
12570 init_test(cx, |s| {
12571 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12572 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
12573 });
12574
12575 let actual_invisibles = collect_invisibles_from_new_editor(
12576 cx,
12577 EditorMode::full(),
12578 input_text,
12579 px(500.0),
12580 show_line_numbers,
12581 );
12582
12583 assert_eq!(expected_invisibles, actual_invisibles);
12584 }
12585 }
12586
12587 #[gpui::test]
12588 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
12589 init_test(cx, |s| {
12590 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12591 s.defaults.tab_size = NonZeroU32::new(4);
12592 });
12593
12594 for editor_mode_without_invisibles in [
12595 EditorMode::SingleLine,
12596 EditorMode::AutoHeight {
12597 min_lines: 1,
12598 max_lines: Some(100),
12599 },
12600 ] {
12601 for show_line_numbers in [true, false] {
12602 let invisibles = collect_invisibles_from_new_editor(
12603 cx,
12604 editor_mode_without_invisibles.clone(),
12605 "\t\t\t| | a b",
12606 px(500.0),
12607 show_line_numbers,
12608 );
12609 assert!(
12610 invisibles.is_empty(),
12611 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
12612 );
12613 }
12614 }
12615 }
12616
12617 #[gpui::test]
12618 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
12619 let tab_size = 4;
12620 let input_text = "a\tbcd ".repeat(9);
12621 let repeated_invisibles = [
12622 Invisible::Tab {
12623 line_start_offset: 1,
12624 line_end_offset: tab_size as usize,
12625 },
12626 Invisible::Whitespace {
12627 line_offset: tab_size as usize + 3,
12628 },
12629 Invisible::Whitespace {
12630 line_offset: tab_size as usize + 4,
12631 },
12632 Invisible::Whitespace {
12633 line_offset: tab_size as usize + 5,
12634 },
12635 Invisible::Whitespace {
12636 line_offset: tab_size as usize + 6,
12637 },
12638 Invisible::Whitespace {
12639 line_offset: tab_size as usize + 7,
12640 },
12641 ];
12642 let expected_invisibles = std::iter::once(repeated_invisibles)
12643 .cycle()
12644 .take(9)
12645 .flatten()
12646 .collect::<Vec<_>>();
12647 assert_eq!(
12648 expected_invisibles.len(),
12649 input_text
12650 .chars()
12651 .filter(|initial_char| initial_char.is_whitespace())
12652 .count(),
12653 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
12654 );
12655 info!("Expected invisibles: {expected_invisibles:?}");
12656
12657 init_test(cx, |_| {});
12658
12659 // Put the same string with repeating whitespace pattern into editors of various size,
12660 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
12661 let resize_step = 10.0;
12662 let mut editor_width = 200.0;
12663 while editor_width <= 1000.0 {
12664 for show_line_numbers in [true, false] {
12665 update_test_language_settings(cx, |s| {
12666 s.defaults.tab_size = NonZeroU32::new(tab_size);
12667 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12668 s.defaults.preferred_line_length = Some(editor_width as u32);
12669 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
12670 });
12671
12672 let actual_invisibles = collect_invisibles_from_new_editor(
12673 cx,
12674 EditorMode::full(),
12675 &input_text,
12676 px(editor_width),
12677 show_line_numbers,
12678 );
12679
12680 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
12681 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
12682 let mut i = 0;
12683 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
12684 i = actual_index;
12685 match expected_invisibles.get(i) {
12686 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
12687 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
12688 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
12689 _ => {
12690 panic!(
12691 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
12692 )
12693 }
12694 },
12695 None => {
12696 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
12697 }
12698 }
12699 }
12700 let missing_expected_invisibles = &expected_invisibles[i + 1..];
12701 assert!(
12702 missing_expected_invisibles.is_empty(),
12703 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
12704 );
12705
12706 editor_width += resize_step;
12707 }
12708 }
12709 }
12710
12711 fn collect_invisibles_from_new_editor(
12712 cx: &mut TestAppContext,
12713 editor_mode: EditorMode,
12714 input_text: &str,
12715 editor_width: Pixels,
12716 show_line_numbers: bool,
12717 ) -> Vec<Invisible> {
12718 info!(
12719 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
12720 f32::from(editor_width)
12721 );
12722 let window = cx.add_window(|window, cx| {
12723 let buffer = MultiBuffer::build_simple(input_text, cx);
12724 Editor::new(editor_mode, buffer, None, window, cx)
12725 });
12726 let cx = &mut VisualTestContext::from_window(*window, cx);
12727 let editor = window.root(cx).unwrap();
12728
12729 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12730 window
12731 .update(cx, |editor, _, cx| {
12732 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12733 editor.set_wrap_width(Some(editor_width), cx);
12734 editor.set_show_line_numbers(show_line_numbers, cx);
12735 })
12736 .unwrap();
12737 let (_, state) = cx.draw(
12738 point(px(500.), px(500.)),
12739 size(px(500.), px(500.)),
12740 |_, _| EditorElement::new(&editor, style),
12741 );
12742 state
12743 .position_map
12744 .line_layouts
12745 .iter()
12746 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
12747 .cloned()
12748 .collect()
12749 }
12750
12751 #[gpui::test]
12752 fn test_merge_overlapping_ranges() {
12753 let base_bg = Hsla::white();
12754 let color1 = Hsla {
12755 h: 0.0,
12756 s: 0.5,
12757 l: 0.5,
12758 a: 0.5,
12759 };
12760 let color2 = Hsla {
12761 h: 120.0,
12762 s: 0.5,
12763 l: 0.5,
12764 a: 0.5,
12765 };
12766
12767 let display_point = |col| DisplayPoint::new(DisplayRow(0), col);
12768 let cols = |v: &Vec<(Range<DisplayPoint>, Hsla)>| -> Vec<(u32, u32)> {
12769 v.iter()
12770 .map(|(r, _)| (r.start.column(), r.end.column()))
12771 .collect()
12772 };
12773
12774 // Test overlapping ranges blend colors
12775 let overlapping = vec![
12776 (display_point(5)..display_point(15), color1),
12777 (display_point(10)..display_point(20), color2),
12778 ];
12779 let result = EditorElement::merge_overlapping_ranges(overlapping, base_bg);
12780 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
12781
12782 // Test middle segment should have blended color
12783 let blended = Hsla::blend(Hsla::blend(base_bg, color1), color2);
12784 assert_eq!(result[1].1, blended);
12785
12786 // Test adjacent same-color ranges merge
12787 let adjacent_same = vec![
12788 (display_point(5)..display_point(10), color1),
12789 (display_point(10)..display_point(15), color1),
12790 ];
12791 let result = EditorElement::merge_overlapping_ranges(adjacent_same, base_bg);
12792 assert_eq!(cols(&result), vec![(5, 15)]);
12793
12794 // Test contained range splits
12795 let contained = vec![
12796 (display_point(5)..display_point(20), color1),
12797 (display_point(10)..display_point(15), color2),
12798 ];
12799 let result = EditorElement::merge_overlapping_ranges(contained, base_bg);
12800 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
12801
12802 // Test multiple overlaps split at every boundary
12803 let color3 = Hsla {
12804 h: 240.0,
12805 s: 0.5,
12806 l: 0.5,
12807 a: 0.5,
12808 };
12809 let complex = vec![
12810 (display_point(5)..display_point(12), color1),
12811 (display_point(8)..display_point(16), color2),
12812 (display_point(10)..display_point(14), color3),
12813 ];
12814 let result = EditorElement::merge_overlapping_ranges(complex, base_bg);
12815 assert_eq!(
12816 cols(&result),
12817 vec![(5, 8), (8, 10), (10, 12), (12, 14), (14, 16)]
12818 );
12819 }
12820
12821 #[gpui::test]
12822 fn test_bg_segments_per_row() {
12823 let base_bg = Hsla::white();
12824
12825 // Case A: selection spans three display rows: row 1 [5, end), full row 2, row 3 [0, 7)
12826 {
12827 let selection_color = Hsla {
12828 h: 200.0,
12829 s: 0.5,
12830 l: 0.5,
12831 a: 0.5,
12832 };
12833 let player_color = PlayerColor {
12834 cursor: selection_color,
12835 background: selection_color,
12836 selection: selection_color,
12837 };
12838
12839 let spanning_selection = SelectionLayout {
12840 head: DisplayPoint::new(DisplayRow(3), 7),
12841 cursor_shape: CursorShape::Bar,
12842 is_newest: true,
12843 is_local: true,
12844 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 7),
12845 active_rows: DisplayRow(1)..DisplayRow(4),
12846 user_name: None,
12847 };
12848
12849 let selections = vec![(player_color, vec![spanning_selection])];
12850 let result = EditorElement::bg_segments_per_row(
12851 DisplayRow(0)..DisplayRow(5),
12852 &selections,
12853 &[],
12854 base_bg,
12855 );
12856
12857 assert_eq!(result.len(), 5);
12858 assert!(result[0].is_empty());
12859 assert_eq!(result[1].len(), 1);
12860 assert_eq!(result[2].len(), 1);
12861 assert_eq!(result[3].len(), 1);
12862 assert!(result[4].is_empty());
12863
12864 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
12865 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
12866 assert_eq!(result[1][0].0.end.column(), u32::MAX);
12867 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
12868 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
12869 assert_eq!(result[2][0].0.end.column(), u32::MAX);
12870 assert_eq!(result[3][0].0.start, DisplayPoint::new(DisplayRow(3), 0));
12871 assert_eq!(result[3][0].0.end, DisplayPoint::new(DisplayRow(3), 7));
12872 }
12873
12874 // Case B: selection ends exactly at the start of row 3, excluding row 3
12875 {
12876 let selection_color = Hsla {
12877 h: 120.0,
12878 s: 0.5,
12879 l: 0.5,
12880 a: 0.5,
12881 };
12882 let player_color = PlayerColor {
12883 cursor: selection_color,
12884 background: selection_color,
12885 selection: selection_color,
12886 };
12887
12888 let selection = SelectionLayout {
12889 head: DisplayPoint::new(DisplayRow(2), 0),
12890 cursor_shape: CursorShape::Bar,
12891 is_newest: true,
12892 is_local: true,
12893 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 0),
12894 active_rows: DisplayRow(1)..DisplayRow(3),
12895 user_name: None,
12896 };
12897
12898 let selections = vec![(player_color, vec![selection])];
12899 let result = EditorElement::bg_segments_per_row(
12900 DisplayRow(0)..DisplayRow(4),
12901 &selections,
12902 &[],
12903 base_bg,
12904 );
12905
12906 assert_eq!(result.len(), 4);
12907 assert!(result[0].is_empty());
12908 assert_eq!(result[1].len(), 1);
12909 assert_eq!(result[2].len(), 1);
12910 assert!(result[3].is_empty());
12911
12912 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
12913 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
12914 assert_eq!(result[1][0].0.end.column(), u32::MAX);
12915 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
12916 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
12917 assert_eq!(result[2][0].0.end.column(), u32::MAX);
12918 }
12919 }
12920
12921 #[cfg(test)]
12922 fn generate_test_run(len: usize, color: Hsla) -> TextRun {
12923 TextRun {
12924 len,
12925 color,
12926 ..Default::default()
12927 }
12928 }
12929
12930 #[gpui::test]
12931 fn test_split_runs_by_bg_segments(cx: &mut gpui::TestAppContext) {
12932 init_test(cx, |_| {});
12933
12934 let dx = |start: u32, end: u32| {
12935 DisplayPoint::new(DisplayRow(0), start)..DisplayPoint::new(DisplayRow(0), end)
12936 };
12937
12938 let text_color = Hsla {
12939 h: 210.0,
12940 s: 0.1,
12941 l: 0.4,
12942 a: 1.0,
12943 };
12944 let bg_1 = Hsla {
12945 h: 30.0,
12946 s: 0.6,
12947 l: 0.8,
12948 a: 1.0,
12949 };
12950 let bg_2 = Hsla {
12951 h: 200.0,
12952 s: 0.6,
12953 l: 0.2,
12954 a: 1.0,
12955 };
12956 let min_contrast = 45.0;
12957 let adjusted_bg1 = ensure_minimum_contrast(text_color, bg_1, min_contrast);
12958 let adjusted_bg2 = ensure_minimum_contrast(text_color, bg_2, min_contrast);
12959
12960 // Case A: single run; disjoint segments inside the run
12961 {
12962 let runs = vec![generate_test_run(20, text_color)];
12963 let segs = vec![(dx(5, 10), bg_1), (dx(12, 16), bg_2)];
12964 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
12965 // Expected slices: [0,5) [5,10) [10,12) [12,16) [16,20)
12966 assert_eq!(
12967 out.iter().map(|r| r.len).collect::<Vec<_>>(),
12968 vec![5, 5, 2, 4, 4]
12969 );
12970 assert_eq!(out[0].color, text_color);
12971 assert_eq!(out[1].color, adjusted_bg1);
12972 assert_eq!(out[2].color, text_color);
12973 assert_eq!(out[3].color, adjusted_bg2);
12974 assert_eq!(out[4].color, text_color);
12975 }
12976
12977 // Case B: multiple runs; segment extends to end of line (u32::MAX)
12978 {
12979 let runs = vec![
12980 generate_test_run(8, text_color),
12981 generate_test_run(7, text_color),
12982 ];
12983 let segs = vec![(dx(6, u32::MAX), bg_1)];
12984 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
12985 // Expected slices across runs: [0,6) [6,8) | [0,7)
12986 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![6, 2, 7]);
12987 assert_eq!(out[0].color, text_color);
12988 assert_eq!(out[1].color, adjusted_bg1);
12989 assert_eq!(out[2].color, adjusted_bg1);
12990 }
12991
12992 // Case C: multi-byte characters
12993 {
12994 // for text: "Hello π δΈη!"
12995 let runs = vec![
12996 generate_test_run(5, text_color), // "Hello"
12997 generate_test_run(6, text_color), // " π "
12998 generate_test_run(6, text_color), // "δΈη"
12999 generate_test_run(1, text_color), // "!"
13000 ];
13001 // selecting "π δΈ"
13002 let segs = vec![(dx(6, 14), bg_1)];
13003 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13004 // "Hello" | " " | "π " | "δΈ" | "η" | "!"
13005 assert_eq!(
13006 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13007 vec![5, 1, 5, 3, 3, 1]
13008 );
13009 assert_eq!(out[0].color, text_color); // "Hello"
13010 assert_eq!(out[2].color, adjusted_bg1); // "π "
13011 assert_eq!(out[3].color, adjusted_bg1); // "δΈ"
13012 assert_eq!(out[4].color, text_color); // "η"
13013 assert_eq!(out[5].color, text_color); // "!"
13014 }
13015
13016 // Case D: split multiple consecutive text runs with segments
13017 {
13018 let segs = vec![
13019 (dx(2, 4), bg_1), // selecting "cd"
13020 (dx(4, 8), bg_2), // selecting "efgh"
13021 (dx(9, 11), bg_1), // selecting "jk"
13022 (dx(12, 16), bg_2), // selecting "mnop"
13023 (dx(18, 19), bg_1), // selecting "s"
13024 ];
13025
13026 // for text: "abcdef"
13027 let runs = vec![
13028 generate_test_run(2, text_color), // ab
13029 generate_test_run(4, text_color), // cdef
13030 ];
13031 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13032 // new splits "ab", "cd", "ef"
13033 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![2, 2, 2]);
13034 assert_eq!(out[0].color, text_color);
13035 assert_eq!(out[1].color, adjusted_bg1);
13036 assert_eq!(out[2].color, adjusted_bg2);
13037
13038 // for text: "ghijklmn"
13039 let runs = vec![
13040 generate_test_run(3, text_color), // ghi
13041 generate_test_run(2, text_color), // jk
13042 generate_test_run(3, text_color), // lmn
13043 ];
13044 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 6); // 2 + 4 from first run
13045 // new splits "gh", "i", "jk", "l", "mn"
13046 assert_eq!(
13047 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13048 vec![2, 1, 2, 1, 2]
13049 );
13050 assert_eq!(out[0].color, adjusted_bg2);
13051 assert_eq!(out[1].color, text_color);
13052 assert_eq!(out[2].color, adjusted_bg1);
13053 assert_eq!(out[3].color, text_color);
13054 assert_eq!(out[4].color, adjusted_bg2);
13055
13056 // for text: "opqrs"
13057 let runs = vec![
13058 generate_test_run(1, text_color), // o
13059 generate_test_run(4, text_color), // pqrs
13060 ];
13061 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 14); // 6 + 3 + 2 + 3 from first two runs
13062 // new splits "o", "p", "qr", "s"
13063 assert_eq!(
13064 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13065 vec![1, 1, 2, 1]
13066 );
13067 assert_eq!(out[0].color, adjusted_bg2);
13068 assert_eq!(out[1].color, adjusted_bg2);
13069 assert_eq!(out[2].color, text_color);
13070 assert_eq!(out[3].color, adjusted_bg1);
13071 }
13072 }
13073}