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 relative_line_base: 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 && let Some(base) = relative_line_base
3360 {
3361 snapshot.calculate_relative_line_numbers(&rows, base, relative.wrapped())
3362 } else {
3363 Default::default()
3364 };
3365
3366 let mut line_number = String::new();
3367 let segments = buffer_rows.iter().enumerate().flat_map(|(ix, row_info)| {
3368 let display_row = DisplayRow(rows.start.0 + ix as u32);
3369 line_number.clear();
3370 let non_relative_number = if relative.wrapped() {
3371 row_info.buffer_row.or(row_info.wrapped_buffer_row)? + 1
3372 } else {
3373 row_info.buffer_row? + 1
3374 };
3375 let relative_number = relative_rows.get(&display_row);
3376 if !(relative_line_numbers_enabled && relative_number.is_some())
3377 && !snapshot.number_deleted_lines
3378 && row_info
3379 .diff_status
3380 .is_some_and(|status| status.is_deleted())
3381 {
3382 return None;
3383 }
3384
3385 let number = relative_number.unwrap_or(&non_relative_number);
3386 write!(&mut line_number, "{number}").unwrap();
3387
3388 let color = active_rows
3389 .get(&display_row)
3390 .map(|spec| {
3391 if spec.breakpoint {
3392 cx.theme().colors().debugger_accent
3393 } else {
3394 cx.theme().colors().editor_active_line_number
3395 }
3396 })
3397 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
3398 let shaped_line =
3399 self.shape_line_number(SharedString::from(&line_number), color, window);
3400 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
3401 let line_origin = gutter_hitbox.map(|hitbox| {
3402 hitbox.origin
3403 + point(
3404 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
3405 ix as f32 * line_height
3406 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height)),
3407 )
3408 });
3409
3410 #[cfg(not(test))]
3411 let hitbox = line_origin.map(|line_origin| {
3412 window.insert_hitbox(
3413 Bounds::new(line_origin, size(shaped_line.width, line_height)),
3414 HitboxBehavior::Normal,
3415 )
3416 });
3417 #[cfg(test)]
3418 let hitbox = {
3419 let _ = line_origin;
3420 None
3421 };
3422
3423 let segment = LineNumberSegment {
3424 shaped_line,
3425 hitbox,
3426 };
3427
3428 let buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
3429 let multi_buffer_row = MultiBufferRow(buffer_row);
3430
3431 Some((multi_buffer_row, segment))
3432 });
3433
3434 let mut line_numbers: HashMap<MultiBufferRow, LineNumberLayout> = HashMap::default();
3435 for (buffer_row, segment) in segments {
3436 line_numbers
3437 .entry(buffer_row)
3438 .or_insert_with(|| LineNumberLayout {
3439 segments: Default::default(),
3440 })
3441 .segments
3442 .push(segment);
3443 }
3444 Arc::new(line_numbers)
3445 }
3446
3447 fn layout_crease_toggles(
3448 &self,
3449 rows: Range<DisplayRow>,
3450 row_infos: &[RowInfo],
3451 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3452 snapshot: &EditorSnapshot,
3453 window: &mut Window,
3454 cx: &mut App,
3455 ) -> Vec<Option<AnyElement>> {
3456 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
3457 && snapshot.mode.is_full()
3458 && self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
3459 if include_fold_statuses {
3460 row_infos
3461 .iter()
3462 .enumerate()
3463 .map(|(ix, info)| {
3464 if info.expand_info.is_some() {
3465 return None;
3466 }
3467 let row = info.multibuffer_row?;
3468 let display_row = DisplayRow(rows.start.0 + ix as u32);
3469 let active = active_rows.contains_key(&display_row);
3470
3471 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
3472 })
3473 .collect()
3474 } else {
3475 Vec::new()
3476 }
3477 }
3478
3479 fn layout_crease_trailers(
3480 &self,
3481 buffer_rows: impl IntoIterator<Item = RowInfo>,
3482 snapshot: &EditorSnapshot,
3483 window: &mut Window,
3484 cx: &mut App,
3485 ) -> Vec<Option<AnyElement>> {
3486 buffer_rows
3487 .into_iter()
3488 .map(|row_info| {
3489 if row_info.expand_info.is_some() {
3490 return None;
3491 }
3492 if let Some(row) = row_info.multibuffer_row {
3493 snapshot.render_crease_trailer(row, window, cx)
3494 } else {
3495 None
3496 }
3497 })
3498 .collect()
3499 }
3500
3501 fn bg_segments_per_row(
3502 rows: Range<DisplayRow>,
3503 selections: &[(PlayerColor, Vec<SelectionLayout>)],
3504 highlight_ranges: &[(Range<DisplayPoint>, Hsla)],
3505 base_background: Hsla,
3506 ) -> Vec<Vec<(Range<DisplayPoint>, Hsla)>> {
3507 if rows.start >= rows.end {
3508 return Vec::new();
3509 }
3510 if !base_background.is_opaque() {
3511 // We don't actually know what color is behind this editor.
3512 return Vec::new();
3513 }
3514 let highlight_iter = highlight_ranges.iter().cloned();
3515 let selection_iter = selections.iter().flat_map(|(player_color, layouts)| {
3516 let color = player_color.selection;
3517 layouts.iter().filter_map(move |selection_layout| {
3518 if selection_layout.range.start != selection_layout.range.end {
3519 Some((selection_layout.range.clone(), color))
3520 } else {
3521 None
3522 }
3523 })
3524 });
3525 let mut per_row_map = vec![Vec::new(); rows.len()];
3526 for (range, color) in highlight_iter.chain(selection_iter) {
3527 let covered_rows = if range.end.column() == 0 {
3528 cmp::max(range.start.row(), rows.start)..cmp::min(range.end.row(), rows.end)
3529 } else {
3530 cmp::max(range.start.row(), rows.start)
3531 ..cmp::min(range.end.row().next_row(), rows.end)
3532 };
3533 for row in covered_rows.iter_rows() {
3534 let seg_start = if row == range.start.row() {
3535 range.start
3536 } else {
3537 DisplayPoint::new(row, 0)
3538 };
3539 let seg_end = if row == range.end.row() && range.end.column() != 0 {
3540 range.end
3541 } else {
3542 DisplayPoint::new(row, u32::MAX)
3543 };
3544 let ix = row.minus(rows.start) as usize;
3545 debug_assert!(row >= rows.start && row < rows.end);
3546 debug_assert!(ix < per_row_map.len());
3547 per_row_map[ix].push((seg_start..seg_end, color));
3548 }
3549 }
3550 for row_segments in per_row_map.iter_mut() {
3551 if row_segments.is_empty() {
3552 continue;
3553 }
3554 let segments = mem::take(row_segments);
3555 let merged = Self::merge_overlapping_ranges(segments, base_background);
3556 *row_segments = merged;
3557 }
3558 per_row_map
3559 }
3560
3561 /// Merge overlapping ranges by splitting at all range boundaries and blending colors where
3562 /// multiple ranges overlap. The result contains non-overlapping ranges ordered from left to right.
3563 ///
3564 /// Expects `start.row() == end.row()` for each range.
3565 fn merge_overlapping_ranges(
3566 ranges: Vec<(Range<DisplayPoint>, Hsla)>,
3567 base_background: Hsla,
3568 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
3569 struct Boundary {
3570 pos: DisplayPoint,
3571 is_start: bool,
3572 index: usize,
3573 color: Hsla,
3574 }
3575
3576 let mut boundaries: SmallVec<[Boundary; 16]> = SmallVec::with_capacity(ranges.len() * 2);
3577 for (index, (range, color)) in ranges.iter().enumerate() {
3578 debug_assert!(
3579 range.start.row() == range.end.row(),
3580 "expects single-row ranges"
3581 );
3582 if range.start < range.end {
3583 boundaries.push(Boundary {
3584 pos: range.start,
3585 is_start: true,
3586 index,
3587 color: *color,
3588 });
3589 boundaries.push(Boundary {
3590 pos: range.end,
3591 is_start: false,
3592 index,
3593 color: *color,
3594 });
3595 }
3596 }
3597
3598 if boundaries.is_empty() {
3599 return Vec::new();
3600 }
3601
3602 boundaries
3603 .sort_unstable_by(|a, b| a.pos.cmp(&b.pos).then_with(|| a.is_start.cmp(&b.is_start)));
3604
3605 let mut processed_ranges: Vec<(Range<DisplayPoint>, Hsla)> = Vec::new();
3606 let mut active_ranges: SmallVec<[(usize, Hsla); 8]> = SmallVec::new();
3607
3608 let mut i = 0;
3609 let mut start_pos = boundaries[0].pos;
3610
3611 let boundaries_len = boundaries.len();
3612 while i < boundaries_len {
3613 let current_boundary_pos = boundaries[i].pos;
3614 if start_pos < current_boundary_pos {
3615 if !active_ranges.is_empty() {
3616 let mut color = base_background;
3617 for &(_, c) in &active_ranges {
3618 color = Hsla::blend(color, c);
3619 }
3620 if let Some((last_range, last_color)) = processed_ranges.last_mut() {
3621 if *last_color == color && last_range.end == start_pos {
3622 last_range.end = current_boundary_pos;
3623 } else {
3624 processed_ranges.push((start_pos..current_boundary_pos, color));
3625 }
3626 } else {
3627 processed_ranges.push((start_pos..current_boundary_pos, color));
3628 }
3629 }
3630 }
3631 while i < boundaries_len && boundaries[i].pos == current_boundary_pos {
3632 let active_range = &boundaries[i];
3633 if active_range.is_start {
3634 let idx = active_range.index;
3635 let pos = active_ranges
3636 .binary_search_by_key(&idx, |(i, _)| *i)
3637 .unwrap_or_else(|p| p);
3638 active_ranges.insert(pos, (idx, active_range.color));
3639 } else {
3640 let idx = active_range.index;
3641 if let Ok(pos) = active_ranges.binary_search_by_key(&idx, |(i, _)| *i) {
3642 active_ranges.remove(pos);
3643 }
3644 }
3645 i += 1;
3646 }
3647 start_pos = current_boundary_pos;
3648 }
3649
3650 processed_ranges
3651 }
3652
3653 fn layout_lines(
3654 rows: Range<DisplayRow>,
3655 snapshot: &EditorSnapshot,
3656 style: &EditorStyle,
3657 editor_width: Pixels,
3658 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3659 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
3660 window: &mut Window,
3661 cx: &mut App,
3662 ) -> Vec<LineWithInvisibles> {
3663 if rows.start >= rows.end {
3664 return Vec::new();
3665 }
3666
3667 // Show the placeholder when the editor is empty
3668 if snapshot.is_empty() {
3669 let font_size = style.text.font_size.to_pixels(window.rem_size());
3670 let placeholder_color = cx.theme().colors().text_placeholder;
3671 let placeholder_text = snapshot.placeholder_text();
3672
3673 let placeholder_lines = placeholder_text
3674 .as_ref()
3675 .map_or(Vec::new(), |text| text.split('\n').collect::<Vec<_>>());
3676
3677 let placeholder_line_count = placeholder_lines.len();
3678
3679 placeholder_lines
3680 .into_iter()
3681 .skip(rows.start.0 as usize)
3682 .chain(iter::repeat(""))
3683 .take(cmp::max(rows.len(), placeholder_line_count))
3684 .map(move |line| {
3685 let run = TextRun {
3686 len: line.len(),
3687 font: style.text.font(),
3688 color: placeholder_color,
3689 ..Default::default()
3690 };
3691 let line = window.text_system().shape_line(
3692 line.to_string().into(),
3693 font_size,
3694 &[run],
3695 None,
3696 );
3697 LineWithInvisibles {
3698 width: line.width,
3699 len: line.len,
3700 fragments: smallvec![LineFragment::Text(line)],
3701 invisibles: Vec::new(),
3702 font_size,
3703 }
3704 })
3705 .collect()
3706 } else {
3707 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
3708 LineWithInvisibles::from_chunks(
3709 chunks,
3710 style,
3711 MAX_LINE_LEN,
3712 rows.len(),
3713 &snapshot.mode,
3714 editor_width,
3715 is_row_soft_wrapped,
3716 bg_segments_per_row,
3717 window,
3718 cx,
3719 )
3720 }
3721 }
3722
3723 fn prepaint_lines(
3724 &self,
3725 start_row: DisplayRow,
3726 line_layouts: &mut [LineWithInvisibles],
3727 line_height: Pixels,
3728 scroll_position: gpui::Point<ScrollOffset>,
3729 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
3730 content_origin: gpui::Point<Pixels>,
3731 window: &mut Window,
3732 cx: &mut App,
3733 ) -> SmallVec<[AnyElement; 1]> {
3734 let mut line_elements = SmallVec::new();
3735 for (ix, line) in line_layouts.iter_mut().enumerate() {
3736 let row = start_row + DisplayRow(ix as u32);
3737 line.prepaint(
3738 line_height,
3739 scroll_position,
3740 scroll_pixel_position,
3741 row,
3742 content_origin,
3743 &mut line_elements,
3744 window,
3745 cx,
3746 );
3747 }
3748 line_elements
3749 }
3750
3751 fn render_block(
3752 &self,
3753 block: &Block,
3754 available_width: AvailableSpace,
3755 block_id: BlockId,
3756 block_row_start: DisplayRow,
3757 snapshot: &EditorSnapshot,
3758 text_x: Pixels,
3759 rows: &Range<DisplayRow>,
3760 line_layouts: &[LineWithInvisibles],
3761 editor_margins: &EditorMargins,
3762 line_height: Pixels,
3763 em_width: Pixels,
3764 text_hitbox: &Hitbox,
3765 editor_width: Pixels,
3766 scroll_width: &mut Pixels,
3767 resized_blocks: &mut HashMap<CustomBlockId, u32>,
3768 row_block_types: &mut HashMap<DisplayRow, bool>,
3769 selections: &[Selection<Point>],
3770 selected_buffer_ids: &Vec<BufferId>,
3771 latest_selection_anchors: &HashMap<BufferId, Anchor>,
3772 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3773 sticky_header_excerpt_id: Option<ExcerptId>,
3774 block_resize_offset: &mut i32,
3775 window: &mut Window,
3776 cx: &mut App,
3777 ) -> Option<(AnyElement, Size<Pixels>, DisplayRow, Pixels)> {
3778 let mut x_position = None;
3779 let mut element = match block {
3780 Block::Custom(custom) => {
3781 let block_start = custom.start().to_point(&snapshot.buffer_snapshot());
3782 let block_end = custom.end().to_point(&snapshot.buffer_snapshot());
3783 if block.place_near() && snapshot.is_line_folded(MultiBufferRow(block_start.row)) {
3784 return None;
3785 }
3786 let align_to = block_start.to_display_point(snapshot);
3787 let x_and_width = |layout: &LineWithInvisibles| {
3788 Some((
3789 text_x + layout.x_for_index(align_to.column() as usize),
3790 text_x + layout.width,
3791 ))
3792 };
3793 let line_ix = align_to.row().0.checked_sub(rows.start.0);
3794 x_position =
3795 if let Some(layout) = line_ix.and_then(|ix| line_layouts.get(ix as usize)) {
3796 x_and_width(layout)
3797 } else {
3798 x_and_width(&layout_line(
3799 align_to.row(),
3800 snapshot,
3801 &self.style,
3802 editor_width,
3803 is_row_soft_wrapped,
3804 window,
3805 cx,
3806 ))
3807 };
3808
3809 let anchor_x = x_position.unwrap().0;
3810
3811 let selected = selections
3812 .binary_search_by(|selection| {
3813 if selection.end <= block_start {
3814 Ordering::Less
3815 } else if selection.start >= block_end {
3816 Ordering::Greater
3817 } else {
3818 Ordering::Equal
3819 }
3820 })
3821 .is_ok();
3822
3823 div()
3824 .size_full()
3825 .child(custom.render(&mut BlockContext {
3826 window,
3827 app: cx,
3828 anchor_x,
3829 margins: editor_margins,
3830 line_height,
3831 em_width,
3832 block_id,
3833 selected,
3834 max_width: text_hitbox.size.width.max(*scroll_width),
3835 editor_style: &self.style,
3836 }))
3837 .into_any()
3838 }
3839
3840 Block::FoldedBuffer {
3841 first_excerpt,
3842 height,
3843 ..
3844 } => {
3845 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
3846 let result = v_flex().id(block_id).w_full().pr(editor_margins.right);
3847
3848 let jump_data = header_jump_data(
3849 snapshot,
3850 block_row_start,
3851 *height,
3852 first_excerpt,
3853 latest_selection_anchors,
3854 );
3855 result
3856 .child(self.render_buffer_header(
3857 first_excerpt,
3858 true,
3859 selected,
3860 false,
3861 jump_data,
3862 window,
3863 cx,
3864 ))
3865 .into_any_element()
3866 }
3867
3868 Block::ExcerptBoundary { .. } => {
3869 let color = cx.theme().colors().clone();
3870 let mut result = v_flex().id(block_id).w_full();
3871
3872 result = result.child(
3873 h_flex().relative().child(
3874 div()
3875 .top(line_height / 2.)
3876 .absolute()
3877 .w_full()
3878 .h_px()
3879 .bg(color.border_variant),
3880 ),
3881 );
3882
3883 result.into_any()
3884 }
3885
3886 Block::BufferHeader { excerpt, height } => {
3887 let mut result = v_flex().id(block_id).w_full();
3888
3889 let jump_data = header_jump_data(
3890 snapshot,
3891 block_row_start,
3892 *height,
3893 excerpt,
3894 latest_selection_anchors,
3895 );
3896
3897 if sticky_header_excerpt_id != Some(excerpt.id) {
3898 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3899
3900 result = result.child(div().pr(editor_margins.right).child(
3901 self.render_buffer_header(
3902 excerpt, false, selected, false, jump_data, window, cx,
3903 ),
3904 ));
3905 } else {
3906 result =
3907 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
3908 }
3909
3910 result.into_any()
3911 }
3912 };
3913
3914 // Discover the element's content height, then round up to the nearest multiple of line height.
3915 let preliminary_size = element.layout_as_root(
3916 size(available_width, AvailableSpace::MinContent),
3917 window,
3918 cx,
3919 );
3920 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
3921 let final_size = if preliminary_size.height == quantized_height {
3922 preliminary_size
3923 } else {
3924 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
3925 };
3926 let mut element_height_in_lines = ((final_size.height / line_height).ceil() as u32).max(1);
3927
3928 let effective_row_start = block_row_start.0 as i32 + *block_resize_offset;
3929 debug_assert!(effective_row_start >= 0);
3930 let mut row = DisplayRow(effective_row_start.max(0) as u32);
3931
3932 let mut x_offset = px(0.);
3933 let mut is_block = true;
3934
3935 if let BlockId::Custom(custom_block_id) = block_id
3936 && block.has_height()
3937 {
3938 if block.place_near()
3939 && let Some((x_target, line_width)) = x_position
3940 {
3941 let margin = em_width * 2;
3942 if line_width + final_size.width + margin
3943 < editor_width + editor_margins.gutter.full_width()
3944 && !row_block_types.contains_key(&(row - 1))
3945 && element_height_in_lines == 1
3946 {
3947 x_offset = line_width + margin;
3948 row = row - 1;
3949 is_block = false;
3950 element_height_in_lines = 0;
3951 row_block_types.insert(row, is_block);
3952 } else {
3953 let max_offset =
3954 editor_width + editor_margins.gutter.full_width() - final_size.width;
3955 let min_offset = (x_target + em_width - final_size.width)
3956 .max(editor_margins.gutter.full_width());
3957 x_offset = x_target.min(max_offset).max(min_offset);
3958 }
3959 };
3960 if element_height_in_lines != block.height() {
3961 *block_resize_offset += element_height_in_lines as i32 - block.height() as i32;
3962 resized_blocks.insert(custom_block_id, element_height_in_lines);
3963 }
3964 }
3965 for i in 0..element_height_in_lines {
3966 row_block_types.insert(row + i, is_block);
3967 }
3968
3969 Some((element, final_size, row, x_offset))
3970 }
3971
3972 fn render_buffer_header(
3973 &self,
3974 for_excerpt: &ExcerptInfo,
3975 is_folded: bool,
3976 is_selected: bool,
3977 is_sticky: bool,
3978 jump_data: JumpData,
3979 window: &mut Window,
3980 cx: &mut App,
3981 ) -> impl IntoElement {
3982 let editor = self.editor.read(cx);
3983 let multi_buffer = editor.buffer.read(cx);
3984 let is_read_only = self.editor.read(cx).read_only(cx);
3985 let editor_handle: &dyn ItemHandle = &self.editor;
3986
3987 let breadcrumbs = if is_selected {
3988 editor.breadcrumbs_inner(cx.theme(), cx)
3989 } else {
3990 None
3991 };
3992
3993 let file_status = multi_buffer
3994 .all_diff_hunks_expanded()
3995 .then(|| editor.status_for_buffer_id(for_excerpt.buffer_id, cx))
3996 .flatten();
3997 let indicator = multi_buffer
3998 .buffer(for_excerpt.buffer_id)
3999 .and_then(|buffer| {
4000 let buffer = buffer.read(cx);
4001 let indicator_color = match (buffer.has_conflict(), buffer.is_dirty()) {
4002 (true, _) => Some(Color::Warning),
4003 (_, true) => Some(Color::Accent),
4004 (false, false) => None,
4005 };
4006 indicator_color.map(|indicator_color| Indicator::dot().color(indicator_color))
4007 });
4008
4009 let include_root = editor
4010 .project
4011 .as_ref()
4012 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
4013 .unwrap_or_default();
4014 let file = for_excerpt.buffer.file();
4015 let can_open_excerpts = file.is_none_or(|file| file.can_open());
4016 let path_style = file.map(|file| file.path_style(cx));
4017 let relative_path = for_excerpt.buffer.resolve_file_path(include_root, cx);
4018 let (parent_path, filename) = if let Some(path) = &relative_path {
4019 if let Some(path_style) = path_style {
4020 let (dir, file_name) = path_style.split(path);
4021 (dir.map(|dir| dir.to_owned()), Some(file_name.to_owned()))
4022 } else {
4023 (None, Some(path.clone()))
4024 }
4025 } else {
4026 (None, None)
4027 };
4028 let focus_handle = editor.focus_handle(cx);
4029 let colors = cx.theme().colors();
4030
4031 let header = div()
4032 .p_1()
4033 .w_full()
4034 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
4035 .child(
4036 h_flex()
4037 .size_full()
4038 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
4039 .pl_1()
4040 .pr_2()
4041 .rounded_sm()
4042 .gap_1p5()
4043 .when(is_sticky, |el| el.shadow_md())
4044 .border_1()
4045 .map(|border| {
4046 let border_color = if is_selected
4047 && is_folded
4048 && focus_handle.contains_focused(window, cx)
4049 {
4050 colors.border_focused
4051 } else {
4052 colors.border
4053 };
4054 border.border_color(border_color)
4055 })
4056 .bg(colors.editor_subheader_background)
4057 .hover(|style| style.bg(colors.element_hover))
4058 .map(|header| {
4059 let editor = self.editor.clone();
4060 let buffer_id = for_excerpt.buffer_id;
4061 let toggle_chevron_icon =
4062 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
4063 let button_size = rems_from_px(28.);
4064
4065 header.child(
4066 div()
4067 .hover(|style| style.bg(colors.element_selected))
4068 .rounded_xs()
4069 .child(
4070 ButtonLike::new("toggle-buffer-fold")
4071 .style(ButtonStyle::Transparent)
4072 .height(button_size.into())
4073 .width(button_size)
4074 .children(toggle_chevron_icon)
4075 .tooltip({
4076 let focus_handle = focus_handle.clone();
4077 let is_folded_for_tooltip = is_folded;
4078 move |_window, cx| {
4079 Tooltip::with_meta_in(
4080 if is_folded_for_tooltip {
4081 "Unfold Excerpt"
4082 } else {
4083 "Fold Excerpt"
4084 },
4085 Some(&ToggleFold),
4086 format!(
4087 "{} to toggle all",
4088 text_for_keystroke(
4089 &Modifiers::alt(),
4090 "click",
4091 cx
4092 )
4093 ),
4094 &focus_handle,
4095 cx,
4096 )
4097 }
4098 })
4099 .on_click(move |event, window, cx| {
4100 if event.modifiers().alt {
4101 // Alt+click toggles all buffers
4102 editor.update(cx, |editor, cx| {
4103 editor.toggle_fold_all(
4104 &ToggleFoldAll,
4105 window,
4106 cx,
4107 );
4108 });
4109 } else {
4110 // Regular click toggles single buffer
4111 if is_folded {
4112 editor.update(cx, |editor, cx| {
4113 editor.unfold_buffer(buffer_id, cx);
4114 });
4115 } else {
4116 editor.update(cx, |editor, cx| {
4117 editor.fold_buffer(buffer_id, cx);
4118 });
4119 }
4120 }
4121 }),
4122 ),
4123 )
4124 })
4125 .children(
4126 editor
4127 .addons
4128 .values()
4129 .filter_map(|addon| {
4130 addon.render_buffer_header_controls(for_excerpt, window, cx)
4131 })
4132 .take(1),
4133 )
4134 .when(!is_read_only, |this| {
4135 this.child(
4136 h_flex()
4137 .size_3()
4138 .justify_center()
4139 .flex_shrink_0()
4140 .children(indicator),
4141 )
4142 })
4143 .child(
4144 h_flex()
4145 .cursor_pointer()
4146 .id("path_header_block")
4147 .min_w_0()
4148 .size_full()
4149 .gap_1()
4150 .justify_between()
4151 .overflow_hidden()
4152 .child(h_flex().min_w_0().flex_1().gap_0p5().overflow_hidden().map(
4153 |path_header| {
4154 let filename = filename
4155 .map(SharedString::from)
4156 .unwrap_or_else(|| "untitled".into());
4157
4158 let full_path = match parent_path.as_deref() {
4159 Some(parent) if !parent.is_empty() => {
4160 format!("{}{}", parent, filename.as_str())
4161 }
4162 _ => filename.as_str().to_string(),
4163 };
4164
4165 path_header
4166 .child(
4167 ButtonLike::new("filename-button")
4168 .when(
4169 ItemSettings::get_global(cx).file_icons,
4170 |this| {
4171 let path =
4172 path::Path::new(filename.as_str());
4173 let icon = FileIcons::get_icon(path, cx)
4174 .unwrap_or_default();
4175
4176 this.child(
4177 Icon::from_path(icon)
4178 .color(Color::Muted),
4179 )
4180 },
4181 )
4182 .child(
4183 Label::new(filename)
4184 .single_line()
4185 .color(file_status_label_color(file_status))
4186 .buffer_font(cx)
4187 .when(
4188 file_status
4189 .is_some_and(|s| s.is_deleted()),
4190 |label| label.strikethrough(),
4191 ),
4192 )
4193 .tooltip(move |_, cx| {
4194 Tooltip::with_meta(
4195 "Open File",
4196 None,
4197 full_path.clone(),
4198 cx,
4199 )
4200 })
4201 .on_click(window.listener_for(&self.editor, {
4202 let jump_data = jump_data.clone();
4203 move |editor, e: &ClickEvent, window, cx| {
4204 editor.open_excerpts_common(
4205 Some(jump_data.clone()),
4206 e.modifiers().secondary(),
4207 window,
4208 cx,
4209 );
4210 }
4211 })),
4212 )
4213 .when_some(parent_path, |then, path| {
4214 then.child(
4215 Label::new(path)
4216 .buffer_font(cx)
4217 .truncate_start()
4218 .color(
4219 if file_status
4220 .is_some_and(FileStatus::is_deleted)
4221 {
4222 Color::Custom(colors.text_disabled)
4223 } else {
4224 Color::Custom(colors.text_muted)
4225 },
4226 ),
4227 )
4228 })
4229 .when(!for_excerpt.buffer.capability.editable(), |el| {
4230 el.child(
4231 Icon::new(IconName::FileLock).color(Color::Muted),
4232 )
4233 })
4234 .when_some(breadcrumbs, |then, breadcrumbs| {
4235 then.child(render_breadcrumb_text(
4236 breadcrumbs,
4237 None,
4238 editor_handle,
4239 true,
4240 window,
4241 cx,
4242 ))
4243 })
4244 },
4245 ))
4246 .when(
4247 can_open_excerpts && is_selected && relative_path.is_some(),
4248 |el| {
4249 el.child(
4250 Button::new("open-file-button", "Open File")
4251 .style(ButtonStyle::OutlinedGhost)
4252 .key_binding(KeyBinding::for_action_in(
4253 &OpenExcerpts,
4254 &focus_handle,
4255 cx,
4256 ))
4257 .on_click(window.listener_for(&self.editor, {
4258 let jump_data = jump_data.clone();
4259 move |editor, e: &ClickEvent, window, cx| {
4260 editor.open_excerpts_common(
4261 Some(jump_data.clone()),
4262 e.modifiers().secondary(),
4263 window,
4264 cx,
4265 );
4266 }
4267 })),
4268 )
4269 },
4270 )
4271 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
4272 .on_click(window.listener_for(&self.editor, {
4273 let buffer_id = for_excerpt.buffer_id;
4274 move |editor, e: &ClickEvent, window, cx| {
4275 if e.modifiers().alt {
4276 editor.open_excerpts_common(
4277 Some(jump_data.clone()),
4278 e.modifiers().secondary(),
4279 window,
4280 cx,
4281 );
4282 return;
4283 }
4284
4285 if is_folded {
4286 editor.unfold_buffer(buffer_id, cx);
4287 } else {
4288 editor.fold_buffer(buffer_id, cx);
4289 }
4290 }
4291 })),
4292 ),
4293 );
4294
4295 let file = for_excerpt.buffer.file().cloned();
4296 let editor = self.editor.clone();
4297
4298 right_click_menu("buffer-header-context-menu")
4299 .trigger(move |_, _, _| header)
4300 .menu(move |window, cx| {
4301 let menu_context = focus_handle.clone();
4302 let editor = editor.clone();
4303 let file = file.clone();
4304 ContextMenu::build(window, cx, move |mut menu, window, cx| {
4305 if let Some(file) = file
4306 && let Some(project) = editor.read(cx).project()
4307 && let Some(worktree) =
4308 project.read(cx).worktree_for_id(file.worktree_id(cx), cx)
4309 {
4310 let path_style = file.path_style(cx);
4311 let worktree = worktree.read(cx);
4312 let relative_path = file.path();
4313 let entry_for_path = worktree.entry_for_path(relative_path);
4314 let abs_path = entry_for_path.map(|e| {
4315 e.canonical_path.as_deref().map_or_else(
4316 || worktree.absolutize(relative_path),
4317 Path::to_path_buf,
4318 )
4319 });
4320 let has_relative_path = worktree.root_entry().is_some_and(Entry::is_dir);
4321
4322 let parent_abs_path = abs_path
4323 .as_ref()
4324 .and_then(|abs_path| Some(abs_path.parent()?.to_path_buf()));
4325 let relative_path = has_relative_path
4326 .then_some(relative_path)
4327 .map(ToOwned::to_owned);
4328
4329 let visible_in_project_panel =
4330 relative_path.is_some() && worktree.is_visible();
4331 let reveal_in_project_panel = entry_for_path
4332 .filter(|_| visible_in_project_panel)
4333 .map(|entry| entry.id);
4334 menu = menu
4335 .when_some(abs_path, |menu, abs_path| {
4336 menu.entry(
4337 "Copy Path",
4338 Some(Box::new(zed_actions::workspace::CopyPath)),
4339 window.handler_for(&editor, move |_, _, cx| {
4340 cx.write_to_clipboard(ClipboardItem::new_string(
4341 abs_path.to_string_lossy().into_owned(),
4342 ));
4343 }),
4344 )
4345 })
4346 .when_some(relative_path, |menu, relative_path| {
4347 menu.entry(
4348 "Copy Relative Path",
4349 Some(Box::new(zed_actions::workspace::CopyRelativePath)),
4350 window.handler_for(&editor, move |_, _, cx| {
4351 cx.write_to_clipboard(ClipboardItem::new_string(
4352 relative_path.display(path_style).to_string(),
4353 ));
4354 }),
4355 )
4356 })
4357 .when(
4358 reveal_in_project_panel.is_some() || parent_abs_path.is_some(),
4359 |menu| menu.separator(),
4360 )
4361 .when_some(reveal_in_project_panel, |menu, entry_id| {
4362 menu.entry(
4363 "Reveal In Project Panel",
4364 Some(Box::new(RevealInProjectPanel::default())),
4365 window.handler_for(&editor, move |editor, _, cx| {
4366 if let Some(project) = &mut editor.project {
4367 project.update(cx, |_, cx| {
4368 cx.emit(project::Event::RevealInProjectPanel(
4369 entry_id,
4370 ))
4371 });
4372 }
4373 }),
4374 )
4375 })
4376 .when_some(parent_abs_path, |menu, parent_abs_path| {
4377 menu.entry(
4378 "Open in Terminal",
4379 Some(Box::new(OpenInTerminal)),
4380 window.handler_for(&editor, move |_, window, cx| {
4381 window.dispatch_action(
4382 OpenTerminal {
4383 working_directory: parent_abs_path.clone(),
4384 }
4385 .boxed_clone(),
4386 cx,
4387 );
4388 }),
4389 )
4390 });
4391 }
4392
4393 menu.context(menu_context)
4394 })
4395 })
4396 }
4397
4398 fn render_blocks(
4399 &self,
4400 rows: Range<DisplayRow>,
4401 snapshot: &EditorSnapshot,
4402 hitbox: &Hitbox,
4403 text_hitbox: &Hitbox,
4404 editor_width: Pixels,
4405 scroll_width: &mut Pixels,
4406 editor_margins: &EditorMargins,
4407 em_width: Pixels,
4408 text_x: Pixels,
4409 line_height: Pixels,
4410 line_layouts: &mut [LineWithInvisibles],
4411 selections: &[Selection<Point>],
4412 selected_buffer_ids: &Vec<BufferId>,
4413 latest_selection_anchors: &HashMap<BufferId, Anchor>,
4414 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4415 sticky_header_excerpt_id: Option<ExcerptId>,
4416 window: &mut Window,
4417 cx: &mut App,
4418 ) -> RenderBlocksOutput {
4419 let (fixed_blocks, non_fixed_blocks) = snapshot
4420 .blocks_in_range(rows.clone())
4421 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
4422
4423 let mut focused_block = self
4424 .editor
4425 .update(cx, |editor, _| editor.take_focused_block());
4426 let mut fixed_block_max_width = Pixels::ZERO;
4427 let mut blocks = Vec::new();
4428 let mut resized_blocks = HashMap::default();
4429 let mut row_block_types = HashMap::default();
4430 let mut block_resize_offset: i32 = 0;
4431
4432 for (row, block) in fixed_blocks {
4433 let block_id = block.id();
4434
4435 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4436 focused_block = None;
4437 }
4438
4439 if let Some((element, element_size, row, x_offset)) = self.render_block(
4440 block,
4441 AvailableSpace::MinContent,
4442 block_id,
4443 row,
4444 snapshot,
4445 text_x,
4446 &rows,
4447 line_layouts,
4448 editor_margins,
4449 line_height,
4450 em_width,
4451 text_hitbox,
4452 editor_width,
4453 scroll_width,
4454 &mut resized_blocks,
4455 &mut row_block_types,
4456 selections,
4457 selected_buffer_ids,
4458 latest_selection_anchors,
4459 is_row_soft_wrapped,
4460 sticky_header_excerpt_id,
4461 &mut block_resize_offset,
4462 window,
4463 cx,
4464 ) {
4465 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
4466 blocks.push(BlockLayout {
4467 id: block_id,
4468 x_offset,
4469 row: Some(row),
4470 element,
4471 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
4472 style: BlockStyle::Fixed,
4473 overlaps_gutter: true,
4474 is_buffer_header: block.is_buffer_header(),
4475 });
4476 }
4477 }
4478
4479 for (row, block) in non_fixed_blocks {
4480 let style = block.style();
4481 let width = match (style, block.place_near()) {
4482 (_, true) => AvailableSpace::MinContent,
4483 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
4484 (BlockStyle::Flex, _) => hitbox
4485 .size
4486 .width
4487 .max(fixed_block_max_width)
4488 .max(editor_margins.gutter.width + *scroll_width)
4489 .into(),
4490 (BlockStyle::Fixed, _) => unreachable!(),
4491 };
4492 let block_id = block.id();
4493
4494 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4495 focused_block = None;
4496 }
4497
4498 if let Some((element, element_size, row, x_offset)) = self.render_block(
4499 block,
4500 width,
4501 block_id,
4502 row,
4503 snapshot,
4504 text_x,
4505 &rows,
4506 line_layouts,
4507 editor_margins,
4508 line_height,
4509 em_width,
4510 text_hitbox,
4511 editor_width,
4512 scroll_width,
4513 &mut resized_blocks,
4514 &mut row_block_types,
4515 selections,
4516 selected_buffer_ids,
4517 latest_selection_anchors,
4518 is_row_soft_wrapped,
4519 sticky_header_excerpt_id,
4520 &mut block_resize_offset,
4521 window,
4522 cx,
4523 ) {
4524 blocks.push(BlockLayout {
4525 id: block_id,
4526 x_offset,
4527 row: Some(row),
4528 element,
4529 available_space: size(width, element_size.height.into()),
4530 style,
4531 overlaps_gutter: !block.place_near(),
4532 is_buffer_header: block.is_buffer_header(),
4533 });
4534 }
4535 }
4536
4537 if let Some(focused_block) = focused_block
4538 && let Some(focus_handle) = focused_block.focus_handle.upgrade()
4539 && focus_handle.is_focused(window)
4540 && let Some(block) = snapshot.block_for_id(focused_block.id)
4541 {
4542 let style = block.style();
4543 let width = match style {
4544 BlockStyle::Fixed => AvailableSpace::MinContent,
4545 BlockStyle::Flex => AvailableSpace::Definite(
4546 hitbox
4547 .size
4548 .width
4549 .max(fixed_block_max_width)
4550 .max(editor_margins.gutter.width + *scroll_width),
4551 ),
4552 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
4553 };
4554
4555 if let Some((element, element_size, _, x_offset)) = self.render_block(
4556 &block,
4557 width,
4558 focused_block.id,
4559 rows.end,
4560 snapshot,
4561 text_x,
4562 &rows,
4563 line_layouts,
4564 editor_margins,
4565 line_height,
4566 em_width,
4567 text_hitbox,
4568 editor_width,
4569 scroll_width,
4570 &mut resized_blocks,
4571 &mut row_block_types,
4572 selections,
4573 selected_buffer_ids,
4574 latest_selection_anchors,
4575 is_row_soft_wrapped,
4576 sticky_header_excerpt_id,
4577 &mut block_resize_offset,
4578 window,
4579 cx,
4580 ) {
4581 blocks.push(BlockLayout {
4582 id: block.id(),
4583 x_offset,
4584 row: None,
4585 element,
4586 available_space: size(width, element_size.height.into()),
4587 style,
4588 overlaps_gutter: true,
4589 is_buffer_header: block.is_buffer_header(),
4590 });
4591 }
4592 }
4593
4594 if resized_blocks.is_empty() {
4595 *scroll_width =
4596 (*scroll_width).max(fixed_block_max_width - editor_margins.gutter.width);
4597 }
4598
4599 RenderBlocksOutput {
4600 blocks,
4601 row_block_types,
4602 resized_blocks: (!resized_blocks.is_empty()).then_some(resized_blocks),
4603 }
4604 }
4605
4606 fn layout_blocks(
4607 &self,
4608 blocks: &mut Vec<BlockLayout>,
4609 hitbox: &Hitbox,
4610 line_height: Pixels,
4611 scroll_position: gpui::Point<ScrollOffset>,
4612 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4613 window: &mut Window,
4614 cx: &mut App,
4615 ) {
4616 for block in blocks {
4617 let mut origin = if let Some(row) = block.row {
4618 hitbox.origin
4619 + point(
4620 block.x_offset,
4621 Pixels::from(
4622 (row.as_f64() - scroll_position.y)
4623 * ScrollPixelOffset::from(line_height),
4624 ),
4625 )
4626 } else {
4627 // Position the block outside the visible area
4628 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
4629 };
4630
4631 if !matches!(block.style, BlockStyle::Sticky) {
4632 origin += point(Pixels::from(-scroll_pixel_position.x), Pixels::ZERO);
4633 }
4634
4635 let focus_handle =
4636 block
4637 .element
4638 .prepaint_as_root(origin, block.available_space, window, cx);
4639
4640 if let Some(focus_handle) = focus_handle {
4641 self.editor.update(cx, |editor, _cx| {
4642 editor.set_focused_block(FocusedBlock {
4643 id: block.id,
4644 focus_handle: focus_handle.downgrade(),
4645 });
4646 });
4647 }
4648 }
4649 }
4650
4651 fn layout_sticky_buffer_header(
4652 &self,
4653 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
4654 scroll_position: gpui::Point<ScrollOffset>,
4655 line_height: Pixels,
4656 right_margin: Pixels,
4657 snapshot: &EditorSnapshot,
4658 hitbox: &Hitbox,
4659 selected_buffer_ids: &Vec<BufferId>,
4660 blocks: &[BlockLayout],
4661 latest_selection_anchors: &HashMap<BufferId, Anchor>,
4662 window: &mut Window,
4663 cx: &mut App,
4664 ) -> AnyElement {
4665 let jump_data = header_jump_data(
4666 snapshot,
4667 DisplayRow(scroll_position.y as u32),
4668 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
4669 excerpt,
4670 latest_selection_anchors,
4671 );
4672
4673 let editor_bg_color = cx.theme().colors().editor_background;
4674
4675 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
4676
4677 let available_width = hitbox.bounds.size.width - right_margin;
4678
4679 let mut header = v_flex()
4680 .w_full()
4681 .relative()
4682 .child(
4683 div()
4684 .w(available_width)
4685 .h(FILE_HEADER_HEIGHT as f32 * line_height)
4686 .bg(linear_gradient(
4687 0.,
4688 linear_color_stop(editor_bg_color.opacity(0.), 0.),
4689 linear_color_stop(editor_bg_color, 0.6),
4690 ))
4691 .absolute()
4692 .top_0(),
4693 )
4694 .child(
4695 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
4696 .into_any_element(),
4697 )
4698 .into_any_element();
4699
4700 let mut origin = hitbox.origin;
4701 // Move floating header up to avoid colliding with the next buffer header.
4702 for block in blocks.iter() {
4703 if !block.is_buffer_header {
4704 continue;
4705 }
4706
4707 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position.y as u32) else {
4708 continue;
4709 };
4710
4711 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
4712 let offset = scroll_position.y - max_row as f64;
4713
4714 if offset > 0.0 {
4715 origin.y -= Pixels::from(offset * ScrollPixelOffset::from(line_height));
4716 }
4717 break;
4718 }
4719
4720 let size = size(
4721 AvailableSpace::Definite(available_width),
4722 AvailableSpace::MinContent,
4723 );
4724
4725 header.prepaint_as_root(origin, size, window, cx);
4726
4727 header
4728 }
4729
4730 fn layout_sticky_headers(
4731 &self,
4732 snapshot: &EditorSnapshot,
4733 editor_width: Pixels,
4734 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4735 line_height: Pixels,
4736 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4737 content_origin: gpui::Point<Pixels>,
4738 gutter_dimensions: &GutterDimensions,
4739 gutter_hitbox: &Hitbox,
4740 text_hitbox: &Hitbox,
4741 style: &EditorStyle,
4742 relative_line_numbers: RelativeLineNumbers,
4743 relative_to: Option<DisplayRow>,
4744 window: &mut Window,
4745 cx: &mut App,
4746 ) -> Option<StickyHeaders> {
4747 let show_line_numbers = snapshot
4748 .show_line_numbers
4749 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
4750
4751 let rows = Self::sticky_headers(self.editor.read(cx), snapshot, style, cx);
4752
4753 let mut lines = Vec::<StickyHeaderLine>::new();
4754
4755 for StickyHeader {
4756 item,
4757 sticky_row,
4758 start_point,
4759 offset,
4760 } in rows.into_iter().rev()
4761 {
4762 let line = layout_line(
4763 sticky_row,
4764 snapshot,
4765 &self.style,
4766 editor_width,
4767 is_row_soft_wrapped,
4768 window,
4769 cx,
4770 );
4771
4772 let line_number = show_line_numbers.then(|| {
4773 let relative_number = relative_to
4774 .filter(|_| relative_line_numbers != RelativeLineNumbers::Disabled)
4775 .map(|base| {
4776 snapshot.relative_line_delta_to_point(
4777 base,
4778 start_point,
4779 relative_line_numbers == RelativeLineNumbers::Wrapped,
4780 )
4781 });
4782 let number = relative_number
4783 .filter(|&delta| delta != 0)
4784 .map(|delta| delta.unsigned_abs() as u32)
4785 .unwrap_or(start_point.row + 1);
4786 let color = cx.theme().colors().editor_line_number;
4787 self.shape_line_number(SharedString::from(number.to_string()), color, window)
4788 });
4789
4790 lines.push(StickyHeaderLine::new(
4791 sticky_row,
4792 line_height * offset as f32,
4793 line,
4794 line_number,
4795 item.range.start,
4796 line_height,
4797 scroll_pixel_position,
4798 content_origin,
4799 gutter_hitbox,
4800 text_hitbox,
4801 window,
4802 cx,
4803 ));
4804 }
4805
4806 lines.reverse();
4807 if lines.is_empty() {
4808 return None;
4809 }
4810
4811 Some(StickyHeaders {
4812 lines,
4813 gutter_background: cx.theme().colors().editor_gutter_background,
4814 content_background: self.style.background,
4815 gutter_right_padding: gutter_dimensions.right_padding,
4816 })
4817 }
4818
4819 pub(crate) fn sticky_headers(
4820 editor: &Editor,
4821 snapshot: &EditorSnapshot,
4822 style: &EditorStyle,
4823 cx: &App,
4824 ) -> Vec<StickyHeader> {
4825 let scroll_top = snapshot.scroll_position().y;
4826
4827 let mut end_rows = Vec::<DisplayRow>::new();
4828 let mut rows = Vec::<StickyHeader>::new();
4829
4830 let items = editor.sticky_headers(style, cx).unwrap_or_default();
4831
4832 for item in items {
4833 let start_point = item.range.start.to_point(snapshot.buffer_snapshot());
4834 let end_point = item.range.end.to_point(snapshot.buffer_snapshot());
4835
4836 let sticky_row = snapshot
4837 .display_snapshot
4838 .point_to_display_point(start_point, Bias::Left)
4839 .row();
4840 let end_row = snapshot
4841 .display_snapshot
4842 .point_to_display_point(end_point, Bias::Left)
4843 .row();
4844 let max_sticky_row = end_row.previous_row();
4845 if max_sticky_row <= sticky_row {
4846 continue;
4847 }
4848
4849 while end_rows
4850 .last()
4851 .is_some_and(|&last_end| last_end < sticky_row)
4852 {
4853 end_rows.pop();
4854 }
4855 let depth = end_rows.len();
4856 let adjusted_scroll_top = scroll_top + depth as f64;
4857
4858 if sticky_row.as_f64() >= adjusted_scroll_top || end_row.as_f64() <= adjusted_scroll_top
4859 {
4860 continue;
4861 }
4862
4863 let max_scroll_offset = max_sticky_row.as_f64() - scroll_top;
4864 let offset = (depth as f64).min(max_scroll_offset);
4865
4866 end_rows.push(end_row);
4867 rows.push(StickyHeader {
4868 item,
4869 sticky_row,
4870 start_point,
4871 offset,
4872 });
4873 }
4874
4875 rows
4876 }
4877
4878 fn layout_cursor_popovers(
4879 &self,
4880 line_height: Pixels,
4881 text_hitbox: &Hitbox,
4882 content_origin: gpui::Point<Pixels>,
4883 right_margin: Pixels,
4884 start_row: DisplayRow,
4885 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4886 line_layouts: &[LineWithInvisibles],
4887 cursor: DisplayPoint,
4888 cursor_point: Point,
4889 style: &EditorStyle,
4890 window: &mut Window,
4891 cx: &mut App,
4892 ) -> Option<ContextMenuLayout> {
4893 let mut min_menu_height = Pixels::ZERO;
4894 let mut max_menu_height = Pixels::ZERO;
4895 let mut height_above_menu = Pixels::ZERO;
4896 let height_below_menu = Pixels::ZERO;
4897 let mut edit_prediction_popover_visible = false;
4898 let mut context_menu_visible = false;
4899 let context_menu_placement;
4900
4901 {
4902 let editor = self.editor.read(cx);
4903 if editor.edit_prediction_visible_in_cursor_popover(editor.has_active_edit_prediction())
4904 {
4905 height_above_menu +=
4906 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
4907 edit_prediction_popover_visible = true;
4908 }
4909
4910 if editor.context_menu_visible()
4911 && let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin()
4912 {
4913 let (min_height_in_lines, max_height_in_lines) = editor
4914 .context_menu_options
4915 .as_ref()
4916 .map_or((3, 12), |options| {
4917 (options.min_entries_visible, options.max_entries_visible)
4918 });
4919
4920 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4921 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4922 context_menu_visible = true;
4923 }
4924 context_menu_placement = editor
4925 .context_menu_options
4926 .as_ref()
4927 .and_then(|options| options.placement.clone());
4928 }
4929
4930 let visible = edit_prediction_popover_visible || context_menu_visible;
4931 if !visible {
4932 return None;
4933 }
4934
4935 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
4936 let target_position = content_origin
4937 + gpui::Point {
4938 x: cmp::max(
4939 px(0.),
4940 Pixels::from(
4941 ScrollPixelOffset::from(
4942 cursor_row_layout.x_for_index(cursor.column() as usize),
4943 ) - scroll_pixel_position.x,
4944 ),
4945 ),
4946 y: cmp::max(
4947 px(0.),
4948 Pixels::from(
4949 cursor.row().next_row().as_f64() * ScrollPixelOffset::from(line_height)
4950 - scroll_pixel_position.y,
4951 ),
4952 ),
4953 };
4954
4955 let viewport_bounds =
4956 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4957 right: -right_margin - MENU_GAP,
4958 ..Default::default()
4959 });
4960
4961 let min_height = height_above_menu + min_menu_height + height_below_menu;
4962 let max_height = height_above_menu + max_menu_height + height_below_menu;
4963 let (laid_out_popovers, y_flipped) = self.layout_popovers_above_or_below_line(
4964 target_position,
4965 line_height,
4966 min_height,
4967 max_height,
4968 context_menu_placement,
4969 text_hitbox,
4970 viewport_bounds,
4971 window,
4972 cx,
4973 |height, max_width_for_stable_x, y_flipped, window, cx| {
4974 // First layout the menu to get its size - others can be at least this wide.
4975 let context_menu = if context_menu_visible {
4976 let menu_height = if y_flipped {
4977 height - height_below_menu
4978 } else {
4979 height - height_above_menu
4980 };
4981 let mut element = self
4982 .render_context_menu(line_height, menu_height, window, cx)
4983 .expect("Visible context menu should always render.");
4984 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4985 Some((CursorPopoverType::CodeContextMenu, element, size))
4986 } else {
4987 None
4988 };
4989 let min_width = context_menu
4990 .as_ref()
4991 .map_or(px(0.), |(_, _, size)| size.width);
4992 let max_width = max_width_for_stable_x.max(
4993 context_menu
4994 .as_ref()
4995 .map_or(px(0.), |(_, _, size)| size.width),
4996 );
4997
4998 let edit_prediction = if edit_prediction_popover_visible {
4999 self.editor.update(cx, move |editor, cx| {
5000 let accept_binding = editor.accept_edit_prediction_keybind(
5001 EditPredictionGranularity::Full,
5002 window,
5003 cx,
5004 );
5005 let mut element = editor.render_edit_prediction_cursor_popover(
5006 min_width,
5007 max_width,
5008 cursor_point,
5009 style,
5010 accept_binding.keystroke(),
5011 window,
5012 cx,
5013 )?;
5014 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
5015 Some((CursorPopoverType::EditPrediction, element, size))
5016 })
5017 } else {
5018 None
5019 };
5020 vec![edit_prediction, context_menu]
5021 .into_iter()
5022 .flatten()
5023 .collect::<Vec<_>>()
5024 },
5025 )?;
5026
5027 let (menu_ix, (_, menu_bounds)) = laid_out_popovers
5028 .iter()
5029 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))?;
5030 let last_ix = laid_out_popovers.len() - 1;
5031 let menu_is_last = menu_ix == last_ix;
5032 let first_popover_bounds = laid_out_popovers[0].1;
5033 let last_popover_bounds = laid_out_popovers[last_ix].1;
5034
5035 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
5036 // right, and otherwise it goes below or to the right.
5037 let mut target_bounds = Bounds::from_corners(
5038 first_popover_bounds.origin,
5039 last_popover_bounds.bottom_right(),
5040 );
5041 target_bounds.size.width = menu_bounds.size.width;
5042
5043 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
5044 // based on this is preferred for layout stability.
5045 let mut max_target_bounds = target_bounds;
5046 max_target_bounds.size.height = max_height;
5047 if y_flipped {
5048 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
5049 }
5050
5051 // Add spacing around `target_bounds` and `max_target_bounds`.
5052 let mut extend_amount = Edges::all(MENU_GAP);
5053 if y_flipped {
5054 extend_amount.bottom = line_height;
5055 } else {
5056 extend_amount.top = line_height;
5057 }
5058 let target_bounds = target_bounds.extend(extend_amount);
5059 let max_target_bounds = max_target_bounds.extend(extend_amount);
5060
5061 let must_place_above_or_below =
5062 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
5063 laid_out_popovers[menu_ix + 1..]
5064 .iter()
5065 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
5066 } else {
5067 false
5068 };
5069
5070 let aside_bounds = self.layout_context_menu_aside(
5071 y_flipped,
5072 *menu_bounds,
5073 target_bounds,
5074 max_target_bounds,
5075 max_menu_height,
5076 must_place_above_or_below,
5077 text_hitbox,
5078 viewport_bounds,
5079 window,
5080 cx,
5081 );
5082
5083 if let Some(menu_bounds) = laid_out_popovers.iter().find_map(|(popover_type, bounds)| {
5084 if matches!(popover_type, CursorPopoverType::CodeContextMenu) {
5085 Some(*bounds)
5086 } else {
5087 None
5088 }
5089 }) {
5090 let bounds = if let Some(aside_bounds) = aside_bounds {
5091 menu_bounds.union(&aside_bounds)
5092 } else {
5093 menu_bounds
5094 };
5095 return Some(ContextMenuLayout { y_flipped, bounds });
5096 }
5097
5098 None
5099 }
5100
5101 fn layout_gutter_menu(
5102 &self,
5103 line_height: Pixels,
5104 text_hitbox: &Hitbox,
5105 content_origin: gpui::Point<Pixels>,
5106 right_margin: Pixels,
5107 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5108 gutter_overshoot: Pixels,
5109 window: &mut Window,
5110 cx: &mut App,
5111 ) {
5112 let editor = self.editor.read(cx);
5113 if !editor.context_menu_visible() {
5114 return;
5115 }
5116 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
5117 editor.context_menu_origin()
5118 else {
5119 return;
5120 };
5121 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
5122 // indicator than just a plain first column of the text field.
5123 let target_position = content_origin
5124 + gpui::Point {
5125 x: -gutter_overshoot,
5126 y: Pixels::from(
5127 gutter_row.next_row().as_f64() * ScrollPixelOffset::from(line_height)
5128 - scroll_pixel_position.y,
5129 ),
5130 };
5131
5132 let (min_height_in_lines, max_height_in_lines) = editor
5133 .context_menu_options
5134 .as_ref()
5135 .map_or((3, 12), |options| {
5136 (options.min_entries_visible, options.max_entries_visible)
5137 });
5138
5139 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
5140 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
5141 let viewport_bounds =
5142 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
5143 right: -right_margin - MENU_GAP,
5144 ..Default::default()
5145 });
5146 self.layout_popovers_above_or_below_line(
5147 target_position,
5148 line_height,
5149 min_height,
5150 max_height,
5151 editor
5152 .context_menu_options
5153 .as_ref()
5154 .and_then(|options| options.placement.clone()),
5155 text_hitbox,
5156 viewport_bounds,
5157 window,
5158 cx,
5159 move |height, _max_width_for_stable_x, _, window, cx| {
5160 let mut element = self
5161 .render_context_menu(line_height, height, window, cx)
5162 .expect("Visible context menu should always render.");
5163 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
5164 vec![(CursorPopoverType::CodeContextMenu, element, size)]
5165 },
5166 );
5167 }
5168
5169 fn layout_popovers_above_or_below_line(
5170 &self,
5171 target_position: gpui::Point<Pixels>,
5172 line_height: Pixels,
5173 min_height: Pixels,
5174 max_height: Pixels,
5175 placement: Option<ContextMenuPlacement>,
5176 text_hitbox: &Hitbox,
5177 viewport_bounds: Bounds<Pixels>,
5178 window: &mut Window,
5179 cx: &mut App,
5180 make_sized_popovers: impl FnOnce(
5181 Pixels,
5182 Pixels,
5183 bool,
5184 &mut Window,
5185 &mut App,
5186 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
5187 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
5188 let text_style = TextStyleRefinement {
5189 line_height: Some(DefiniteLength::Fraction(
5190 BufferLineHeight::Comfortable.value(),
5191 )),
5192 ..Default::default()
5193 };
5194 window.with_text_style(Some(text_style), |window| {
5195 // If the max height won't fit below and there is more space above, put it above the line.
5196 let bottom_y_when_flipped = target_position.y - line_height;
5197 let available_above = bottom_y_when_flipped - text_hitbox.top();
5198 let available_below = text_hitbox.bottom() - target_position.y;
5199 let y_overflows_below = max_height > available_below;
5200 let mut y_flipped = match placement {
5201 Some(ContextMenuPlacement::Above) => true,
5202 Some(ContextMenuPlacement::Below) => false,
5203 None => y_overflows_below && available_above > available_below,
5204 };
5205 let mut height = cmp::min(
5206 max_height,
5207 if y_flipped {
5208 available_above
5209 } else {
5210 available_below
5211 },
5212 );
5213
5214 // If the min height doesn't fit within text bounds, instead fit within the window.
5215 if height < min_height {
5216 let available_above = bottom_y_when_flipped;
5217 let available_below = viewport_bounds.bottom() - target_position.y;
5218 let (y_flipped_override, height_override) = match placement {
5219 Some(ContextMenuPlacement::Above) => {
5220 (true, cmp::min(available_above, min_height))
5221 }
5222 Some(ContextMenuPlacement::Below) => {
5223 (false, cmp::min(available_below, min_height))
5224 }
5225 None => {
5226 if available_below > min_height {
5227 (false, min_height)
5228 } else if available_above > min_height {
5229 (true, min_height)
5230 } else if available_above > available_below {
5231 (true, available_above)
5232 } else {
5233 (false, available_below)
5234 }
5235 }
5236 };
5237 y_flipped = y_flipped_override;
5238 height = height_override;
5239 }
5240
5241 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
5242
5243 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
5244 // for very narrow windows.
5245 let popovers =
5246 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
5247 if popovers.is_empty() {
5248 return None;
5249 }
5250
5251 let max_width = popovers
5252 .iter()
5253 .map(|(_, _, size)| size.width)
5254 .max()
5255 .unwrap_or_default();
5256
5257 let mut current_position = gpui::Point {
5258 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
5259 // overflow. Include space for the scrollbar.
5260 x: target_position
5261 .x
5262 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
5263 y: if y_flipped {
5264 bottom_y_when_flipped
5265 } else {
5266 target_position.y
5267 },
5268 };
5269
5270 let mut laid_out_popovers = popovers
5271 .into_iter()
5272 .map(|(popover_type, element, size)| {
5273 if y_flipped {
5274 current_position.y -= size.height;
5275 }
5276 let position = current_position;
5277 window.defer_draw(element, current_position, 1);
5278 if !y_flipped {
5279 current_position.y += size.height + MENU_GAP;
5280 } else {
5281 current_position.y -= MENU_GAP;
5282 }
5283 (popover_type, Bounds::new(position, size))
5284 })
5285 .collect::<Vec<_>>();
5286
5287 if y_flipped {
5288 laid_out_popovers.reverse();
5289 }
5290
5291 Some((laid_out_popovers, y_flipped))
5292 })
5293 }
5294
5295 fn layout_context_menu_aside(
5296 &self,
5297 y_flipped: bool,
5298 menu_bounds: Bounds<Pixels>,
5299 target_bounds: Bounds<Pixels>,
5300 max_target_bounds: Bounds<Pixels>,
5301 max_height: Pixels,
5302 must_place_above_or_below: bool,
5303 text_hitbox: &Hitbox,
5304 viewport_bounds: Bounds<Pixels>,
5305 window: &mut Window,
5306 cx: &mut App,
5307 ) -> Option<Bounds<Pixels>> {
5308 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
5309 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
5310 && !must_place_above_or_below
5311 {
5312 let max_width = cmp::min(
5313 available_within_viewport.right - px(1.),
5314 MENU_ASIDE_MAX_WIDTH,
5315 );
5316 let mut aside = self.render_context_menu_aside(
5317 size(max_width, max_height - POPOVER_Y_PADDING),
5318 window,
5319 cx,
5320 )?;
5321 let size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5322 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
5323 Some((aside, right_position, size))
5324 } else {
5325 let max_size = size(
5326 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
5327 // won't be needed here.
5328 cmp::min(
5329 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
5330 viewport_bounds.right(),
5331 ),
5332 cmp::min(
5333 max_height,
5334 cmp::max(
5335 available_within_viewport.top,
5336 available_within_viewport.bottom,
5337 ),
5338 ) - POPOVER_Y_PADDING,
5339 );
5340 let mut aside = self.render_context_menu_aside(max_size, window, cx)?;
5341 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5342
5343 let top_position = point(
5344 menu_bounds.origin.x,
5345 target_bounds.top() - actual_size.height,
5346 );
5347 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
5348
5349 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
5350 // Prefer to fit on the same side of the line as the menu, then on the other side of
5351 // the line.
5352 if !y_flipped && wanted.height < available.bottom {
5353 Some(bottom_position)
5354 } else if !y_flipped && wanted.height < available.top {
5355 Some(top_position)
5356 } else if y_flipped && wanted.height < available.top {
5357 Some(top_position)
5358 } else if y_flipped && wanted.height < available.bottom {
5359 Some(bottom_position)
5360 } else {
5361 None
5362 }
5363 };
5364
5365 // Prefer choosing a direction using max sizes rather than actual size for stability.
5366 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
5367 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
5368 let aside_position = fit_within(available_within_text, wanted)
5369 // Fallback: fit max size in window.
5370 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
5371 // Fallback: fit actual size in window.
5372 .or_else(|| fit_within(available_within_viewport, actual_size));
5373
5374 aside_position.map(|position| (aside, position, actual_size))
5375 };
5376
5377 // Skip drawing if it doesn't fit anywhere.
5378 if let Some((aside, position, size)) = positioned_aside {
5379 let aside_bounds = Bounds::new(position, size);
5380 window.defer_draw(aside, position, 2);
5381 return Some(aside_bounds);
5382 }
5383
5384 None
5385 }
5386
5387 fn render_context_menu(
5388 &self,
5389 line_height: Pixels,
5390 height: Pixels,
5391 window: &mut Window,
5392 cx: &mut App,
5393 ) -> Option<AnyElement> {
5394 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
5395 self.editor.update(cx, |editor, cx| {
5396 editor.render_context_menu(max_height_in_lines, window, cx)
5397 })
5398 }
5399
5400 fn render_context_menu_aside(
5401 &self,
5402 max_size: Size<Pixels>,
5403 window: &mut Window,
5404 cx: &mut App,
5405 ) -> Option<AnyElement> {
5406 if max_size.width < px(100.) || max_size.height < px(12.) {
5407 None
5408 } else {
5409 self.editor.update(cx, |editor, cx| {
5410 editor.render_context_menu_aside(max_size, window, cx)
5411 })
5412 }
5413 }
5414
5415 fn layout_mouse_context_menu(
5416 &self,
5417 editor_snapshot: &EditorSnapshot,
5418 visible_range: Range<DisplayRow>,
5419 content_origin: gpui::Point<Pixels>,
5420 window: &mut Window,
5421 cx: &mut App,
5422 ) -> Option<AnyElement> {
5423 let position = self.editor.update(cx, |editor, cx| {
5424 let visible_start_point = editor.display_to_pixel_point(
5425 DisplayPoint::new(visible_range.start, 0),
5426 editor_snapshot,
5427 window,
5428 cx,
5429 )?;
5430 let visible_end_point = editor.display_to_pixel_point(
5431 DisplayPoint::new(visible_range.end, 0),
5432 editor_snapshot,
5433 window,
5434 cx,
5435 )?;
5436
5437 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5438 let (source_display_point, position) = match mouse_context_menu.position {
5439 MenuPosition::PinnedToScreen(point) => (None, point),
5440 MenuPosition::PinnedToEditor { source, offset } => {
5441 let source_display_point = source.to_display_point(editor_snapshot);
5442 let source_point =
5443 editor.to_pixel_point(source, editor_snapshot, window, cx)?;
5444 let position = content_origin + source_point + offset;
5445 (Some(source_display_point), position)
5446 }
5447 };
5448
5449 let source_included = source_display_point.is_none_or(|source_display_point| {
5450 visible_range
5451 .to_inclusive()
5452 .contains(&source_display_point.row())
5453 });
5454 let position_included =
5455 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
5456 if !source_included && !position_included {
5457 None
5458 } else {
5459 Some(position)
5460 }
5461 })?;
5462
5463 let text_style = TextStyleRefinement {
5464 line_height: Some(DefiniteLength::Fraction(
5465 BufferLineHeight::Comfortable.value(),
5466 )),
5467 ..Default::default()
5468 };
5469 window.with_text_style(Some(text_style), |window| {
5470 let mut element = self.editor.read_with(cx, |editor, _| {
5471 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5472 let context_menu = mouse_context_menu.context_menu.clone();
5473
5474 Some(
5475 deferred(
5476 anchored()
5477 .position(position)
5478 .child(context_menu)
5479 .anchor(Corner::TopLeft)
5480 .snap_to_window_with_margin(px(8.)),
5481 )
5482 .with_priority(1)
5483 .into_any(),
5484 )
5485 })?;
5486
5487 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
5488 Some(element)
5489 })
5490 }
5491
5492 fn layout_hover_popovers(
5493 &self,
5494 snapshot: &EditorSnapshot,
5495 hitbox: &Hitbox,
5496 visible_display_row_range: Range<DisplayRow>,
5497 content_origin: gpui::Point<Pixels>,
5498 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5499 line_layouts: &[LineWithInvisibles],
5500 line_height: Pixels,
5501 em_width: Pixels,
5502 context_menu_layout: Option<ContextMenuLayout>,
5503 window: &mut Window,
5504 cx: &mut App,
5505 ) {
5506 struct MeasuredHoverPopover {
5507 element: AnyElement,
5508 size: Size<Pixels>,
5509 horizontal_offset: Pixels,
5510 }
5511
5512 let max_size = size(
5513 (120. * em_width) // Default size
5514 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5515 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5516 (16. * line_height) // Default size
5517 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5518 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5519 );
5520
5521 // Don't show hover popovers when context menu is open to avoid overlap
5522 let has_context_menu = self.editor.read(cx).mouse_context_menu.is_some();
5523 if has_context_menu {
5524 return;
5525 }
5526
5527 let hover_popovers = self.editor.update(cx, |editor, cx| {
5528 editor.hover_state.render(
5529 snapshot,
5530 visible_display_row_range.clone(),
5531 max_size,
5532 &editor.text_layout_details(window),
5533 window,
5534 cx,
5535 )
5536 });
5537 let Some((popover_position, hover_popovers)) = hover_popovers else {
5538 return;
5539 };
5540
5541 // This is safe because we check on layout whether the required row is available
5542 let hovered_row_layout = &line_layouts[popover_position
5543 .row()
5544 .minus(visible_display_row_range.start)
5545 as usize];
5546
5547 // Compute Hovered Point
5548 let x = hovered_row_layout.x_for_index(popover_position.column() as usize)
5549 - Pixels::from(scroll_pixel_position.x);
5550 let y = Pixels::from(
5551 popover_position.row().as_f64() * ScrollPixelOffset::from(line_height)
5552 - scroll_pixel_position.y,
5553 );
5554 let hovered_point = content_origin + point(x, y);
5555
5556 let mut overall_height = Pixels::ZERO;
5557 let mut measured_hover_popovers = Vec::new();
5558 for (position, mut hover_popover) in hover_popovers.into_iter().with_position() {
5559 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
5560 let horizontal_offset =
5561 (hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
5562 .min(Pixels::ZERO);
5563 match position {
5564 itertools::Position::Middle | itertools::Position::Last => {
5565 overall_height += HOVER_POPOVER_GAP
5566 }
5567 _ => {}
5568 }
5569 overall_height += size.height;
5570 measured_hover_popovers.push(MeasuredHoverPopover {
5571 element: hover_popover,
5572 size,
5573 horizontal_offset,
5574 });
5575 }
5576
5577 fn draw_occluder(
5578 width: Pixels,
5579 origin: gpui::Point<Pixels>,
5580 window: &mut Window,
5581 cx: &mut App,
5582 ) {
5583 let mut occlusion = div()
5584 .size_full()
5585 .occlude()
5586 .on_mouse_move(|_, _, cx| cx.stop_propagation())
5587 .into_any_element();
5588 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
5589 window.defer_draw(occlusion, origin, 2);
5590 }
5591
5592 fn place_popovers_above(
5593 hovered_point: gpui::Point<Pixels>,
5594 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5595 window: &mut Window,
5596 cx: &mut App,
5597 ) {
5598 let mut current_y = hovered_point.y;
5599 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5600 let size = popover.size;
5601 let popover_origin = point(
5602 hovered_point.x + popover.horizontal_offset,
5603 current_y - size.height,
5604 );
5605
5606 window.defer_draw(popover.element, popover_origin, 2);
5607 if position != itertools::Position::Last {
5608 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
5609 draw_occluder(size.width, origin, window, cx);
5610 }
5611
5612 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5613 }
5614 }
5615
5616 fn place_popovers_below(
5617 hovered_point: gpui::Point<Pixels>,
5618 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5619 line_height: Pixels,
5620 window: &mut Window,
5621 cx: &mut App,
5622 ) {
5623 let mut current_y = hovered_point.y + line_height;
5624 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5625 let size = popover.size;
5626 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5627
5628 window.defer_draw(popover.element, popover_origin, 2);
5629 if position != itertools::Position::Last {
5630 let origin = point(popover_origin.x, popover_origin.y + size.height);
5631 draw_occluder(size.width, origin, window, cx);
5632 }
5633
5634 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5635 }
5636 }
5637
5638 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5639 context_menu_layout
5640 .as_ref()
5641 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5642 };
5643
5644 let can_place_above = {
5645 let mut bounds_above = Vec::new();
5646 let mut current_y = hovered_point.y;
5647 for popover in &measured_hover_popovers {
5648 let size = popover.size;
5649 let popover_origin = point(
5650 hovered_point.x + popover.horizontal_offset,
5651 current_y - size.height,
5652 );
5653 bounds_above.push(Bounds::new(popover_origin, size));
5654 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5655 }
5656 bounds_above
5657 .iter()
5658 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5659 };
5660
5661 let can_place_below = || {
5662 let mut bounds_below = Vec::new();
5663 let mut current_y = hovered_point.y + line_height;
5664 for popover in &measured_hover_popovers {
5665 let size = popover.size;
5666 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5667 bounds_below.push(Bounds::new(popover_origin, size));
5668 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5669 }
5670 bounds_below
5671 .iter()
5672 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5673 };
5674
5675 if can_place_above {
5676 // try placing above hovered point
5677 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5678 } else if can_place_below() {
5679 // try placing below hovered point
5680 place_popovers_below(
5681 hovered_point,
5682 measured_hover_popovers,
5683 line_height,
5684 window,
5685 cx,
5686 );
5687 } else {
5688 // try to place popovers around the context menu
5689 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5690 let total_width = measured_hover_popovers
5691 .iter()
5692 .map(|p| p.size.width)
5693 .max()
5694 .unwrap_or(Pixels::ZERO);
5695 let y_for_horizontal_positioning = if menu.y_flipped {
5696 menu.bounds.bottom() - overall_height
5697 } else {
5698 menu.bounds.top()
5699 };
5700 let possible_origins = vec![
5701 // left of context menu
5702 point(
5703 menu.bounds.left() - total_width - HOVER_POPOVER_GAP,
5704 y_for_horizontal_positioning,
5705 ),
5706 // right of context menu
5707 point(
5708 menu.bounds.right() + HOVER_POPOVER_GAP,
5709 y_for_horizontal_positioning,
5710 ),
5711 // top of context menu
5712 point(
5713 menu.bounds.left(),
5714 menu.bounds.top() - overall_height - HOVER_POPOVER_GAP,
5715 ),
5716 // bottom of context menu
5717 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5718 ];
5719 possible_origins.into_iter().find(|&origin| {
5720 Bounds::new(origin, size(total_width, overall_height))
5721 .is_contained_within(hitbox)
5722 })
5723 });
5724 if let Some(origin) = origin_surrounding_menu {
5725 let mut current_y = origin.y;
5726 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5727 let size = popover.size;
5728 let popover_origin = point(origin.x, current_y);
5729
5730 window.defer_draw(popover.element, popover_origin, 2);
5731 if position != itertools::Position::Last {
5732 let origin = point(popover_origin.x, popover_origin.y + size.height);
5733 draw_occluder(size.width, origin, window, cx);
5734 }
5735
5736 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5737 }
5738 } else {
5739 // fallback to existing above/below cursor logic
5740 // this might overlap menu or overflow in rare case
5741 if can_place_above {
5742 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5743 } else {
5744 place_popovers_below(
5745 hovered_point,
5746 measured_hover_popovers,
5747 line_height,
5748 window,
5749 cx,
5750 );
5751 }
5752 }
5753 }
5754 }
5755
5756 fn layout_word_diff_highlights(
5757 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5758 row_infos: &[RowInfo],
5759 start_row: DisplayRow,
5760 snapshot: &EditorSnapshot,
5761 highlighted_ranges: &mut Vec<(Range<DisplayPoint>, Hsla)>,
5762 cx: &mut App,
5763 ) {
5764 let colors = cx.theme().colors();
5765
5766 let word_highlights = display_hunks
5767 .into_iter()
5768 .filter_map(|(hunk, _)| match hunk {
5769 DisplayDiffHunk::Unfolded {
5770 word_diffs, status, ..
5771 } => Some((word_diffs, status)),
5772 _ => None,
5773 })
5774 .filter(|(_, status)| status.is_modified())
5775 .flat_map(|(word_diffs, _)| word_diffs)
5776 .filter_map(|word_diff| {
5777 let start_point = word_diff.start.to_display_point(&snapshot.display_snapshot);
5778 let end_point = word_diff.end.to_display_point(&snapshot.display_snapshot);
5779 let start_row_offset = start_point.row().0.saturating_sub(start_row.0) as usize;
5780
5781 row_infos
5782 .get(start_row_offset)
5783 .and_then(|row_info| row_info.diff_status)
5784 .and_then(|diff_status| {
5785 let background_color = match diff_status.kind {
5786 DiffHunkStatusKind::Added => colors.version_control_word_added,
5787 DiffHunkStatusKind::Deleted => colors.version_control_word_deleted,
5788 DiffHunkStatusKind::Modified => {
5789 debug_panic!("modified diff status for row info");
5790 return None;
5791 }
5792 };
5793 Some((start_point..end_point, background_color))
5794 })
5795 });
5796
5797 highlighted_ranges.extend(word_highlights);
5798 }
5799
5800 fn layout_diff_hunk_controls(
5801 &self,
5802 row_range: Range<DisplayRow>,
5803 row_infos: &[RowInfo],
5804 text_hitbox: &Hitbox,
5805 newest_cursor_position: Option<DisplayPoint>,
5806 line_height: Pixels,
5807 right_margin: Pixels,
5808 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5809 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5810 highlighted_rows: &BTreeMap<DisplayRow, LineHighlight>,
5811 editor: Entity<Editor>,
5812 window: &mut Window,
5813 cx: &mut App,
5814 ) -> (Vec<AnyElement>, Vec<(DisplayRow, Bounds<Pixels>)>) {
5815 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
5816 let hovered_diff_hunk_row = editor.read(cx).hovered_diff_hunk_row;
5817
5818 let mut controls = vec![];
5819 let mut control_bounds = vec![];
5820
5821 let active_positions = [
5822 hovered_diff_hunk_row.map(|row| DisplayPoint::new(row, 0)),
5823 newest_cursor_position,
5824 ];
5825
5826 for (hunk, _) in display_hunks {
5827 if let DisplayDiffHunk::Unfolded {
5828 display_row_range,
5829 multi_buffer_range,
5830 status,
5831 is_created_file,
5832 ..
5833 } = &hunk
5834 {
5835 if display_row_range.start < row_range.start
5836 || display_row_range.start >= row_range.end
5837 {
5838 continue;
5839 }
5840 if highlighted_rows
5841 .get(&display_row_range.start)
5842 .and_then(|highlight| highlight.type_id)
5843 .is_some_and(|type_id| {
5844 [
5845 TypeId::of::<ConflictsOuter>(),
5846 TypeId::of::<ConflictsOursMarker>(),
5847 TypeId::of::<ConflictsOurs>(),
5848 TypeId::of::<ConflictsTheirs>(),
5849 TypeId::of::<ConflictsTheirsMarker>(),
5850 ]
5851 .contains(&type_id)
5852 })
5853 {
5854 continue;
5855 }
5856 let row_ix = (display_row_range.start - row_range.start).0 as usize;
5857 if row_infos[row_ix].diff_status.is_none() {
5858 continue;
5859 }
5860 if row_infos[row_ix]
5861 .diff_status
5862 .is_some_and(|status| status.is_added())
5863 && !status.is_added()
5864 {
5865 continue;
5866 }
5867
5868 if active_positions
5869 .iter()
5870 .any(|p| p.is_some_and(|p| display_row_range.contains(&p.row())))
5871 {
5872 let y = (display_row_range.start.as_f64()
5873 * ScrollPixelOffset::from(line_height)
5874 + ScrollPixelOffset::from(text_hitbox.bounds.top())
5875 - scroll_pixel_position.y)
5876 .into();
5877
5878 let mut element = render_diff_hunk_controls(
5879 display_row_range.start.0,
5880 status,
5881 multi_buffer_range.clone(),
5882 *is_created_file,
5883 line_height,
5884 &editor,
5885 window,
5886 cx,
5887 );
5888 let size =
5889 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
5890
5891 let x = text_hitbox.bounds.right() - right_margin - px(10.) - size.width;
5892
5893 if x < text_hitbox.bounds.left() {
5894 continue;
5895 }
5896
5897 let bounds = Bounds::new(gpui::Point::new(x, y), size);
5898 control_bounds.push((display_row_range.start, bounds));
5899
5900 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
5901 element.prepaint(window, cx)
5902 });
5903 controls.push(element);
5904 }
5905 }
5906 }
5907
5908 (controls, control_bounds)
5909 }
5910
5911 fn layout_signature_help(
5912 &self,
5913 hitbox: &Hitbox,
5914 content_origin: gpui::Point<Pixels>,
5915 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5916 newest_selection_head: Option<DisplayPoint>,
5917 start_row: DisplayRow,
5918 line_layouts: &[LineWithInvisibles],
5919 line_height: Pixels,
5920 em_width: Pixels,
5921 context_menu_layout: Option<ContextMenuLayout>,
5922 window: &mut Window,
5923 cx: &mut App,
5924 ) {
5925 if !self.editor.focus_handle(cx).is_focused(window) {
5926 return;
5927 }
5928 let Some(newest_selection_head) = newest_selection_head else {
5929 return;
5930 };
5931
5932 let max_size = size(
5933 (120. * em_width) // Default size
5934 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5935 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5936 (16. * line_height) // Default size
5937 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5938 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5939 );
5940
5941 let maybe_element = self.editor.update(cx, |editor, cx| {
5942 if let Some(popover) = editor.signature_help_state.popover_mut() {
5943 let element = popover.render(max_size, window, cx);
5944 Some(element)
5945 } else {
5946 None
5947 }
5948 });
5949 let Some(mut element) = maybe_element else {
5950 return;
5951 };
5952
5953 let selection_row = newest_selection_head.row();
5954 let Some(cursor_row_layout) = (selection_row >= start_row)
5955 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
5956 .flatten()
5957 else {
5958 return;
5959 };
5960
5961 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
5962 - Pixels::from(scroll_pixel_position.x);
5963 let target_y = Pixels::from(
5964 selection_row.as_f64() * ScrollPixelOffset::from(line_height) - scroll_pixel_position.y,
5965 );
5966 let target_point = content_origin + point(target_x, target_y);
5967
5968 let actual_size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
5969
5970 let (popover_bounds_above, popover_bounds_below) = {
5971 let horizontal_offset = (hitbox.top_right().x
5972 - POPOVER_RIGHT_OFFSET
5973 - (target_point.x + actual_size.width))
5974 .min(Pixels::ZERO);
5975 let initial_x = target_point.x + horizontal_offset;
5976 (
5977 Bounds::new(
5978 point(initial_x, target_point.y - actual_size.height),
5979 actual_size,
5980 ),
5981 Bounds::new(
5982 point(initial_x, target_point.y + line_height + HOVER_POPOVER_GAP),
5983 actual_size,
5984 ),
5985 )
5986 };
5987
5988 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5989 context_menu_layout
5990 .as_ref()
5991 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5992 };
5993
5994 let final_origin = if popover_bounds_above.is_contained_within(hitbox)
5995 && !intersects_menu(popover_bounds_above)
5996 {
5997 // try placing above cursor
5998 popover_bounds_above.origin
5999 } else if popover_bounds_below.is_contained_within(hitbox)
6000 && !intersects_menu(popover_bounds_below)
6001 {
6002 // try placing below cursor
6003 popover_bounds_below.origin
6004 } else {
6005 // try surrounding context menu if exists
6006 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
6007 let y_for_horizontal_positioning = if menu.y_flipped {
6008 menu.bounds.bottom() - actual_size.height
6009 } else {
6010 menu.bounds.top()
6011 };
6012 let possible_origins = vec![
6013 // left of context menu
6014 point(
6015 menu.bounds.left() - actual_size.width - HOVER_POPOVER_GAP,
6016 y_for_horizontal_positioning,
6017 ),
6018 // right of context menu
6019 point(
6020 menu.bounds.right() + HOVER_POPOVER_GAP,
6021 y_for_horizontal_positioning,
6022 ),
6023 // top of context menu
6024 point(
6025 menu.bounds.left(),
6026 menu.bounds.top() - actual_size.height - HOVER_POPOVER_GAP,
6027 ),
6028 // bottom of context menu
6029 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
6030 ];
6031 possible_origins
6032 .into_iter()
6033 .find(|&origin| Bounds::new(origin, actual_size).is_contained_within(hitbox))
6034 });
6035 origin_surrounding_menu.unwrap_or_else(|| {
6036 // fallback to existing above/below cursor logic
6037 // this might overlap menu or overflow in rare case
6038 if popover_bounds_above.is_contained_within(hitbox) {
6039 popover_bounds_above.origin
6040 } else {
6041 popover_bounds_below.origin
6042 }
6043 })
6044 };
6045
6046 window.defer_draw(element, final_origin, 2);
6047 }
6048
6049 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
6050 window.paint_layer(layout.hitbox.bounds, |window| {
6051 let scroll_top = layout.position_map.snapshot.scroll_position().y;
6052 let gutter_bg = cx.theme().colors().editor_gutter_background;
6053 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
6054 window.paint_quad(fill(
6055 layout.position_map.text_hitbox.bounds,
6056 self.style.background,
6057 ));
6058
6059 if matches!(
6060 layout.mode,
6061 EditorMode::Full { .. } | EditorMode::Minimap { .. }
6062 ) {
6063 let show_active_line_background = match layout.mode {
6064 EditorMode::Full {
6065 show_active_line_background,
6066 ..
6067 } => show_active_line_background,
6068 EditorMode::Minimap { .. } => true,
6069 _ => false,
6070 };
6071 let mut active_rows = layout.active_rows.iter().peekable();
6072 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
6073 let mut end_row = start_row.0;
6074 while active_rows
6075 .peek()
6076 .is_some_and(|(active_row, has_selection)| {
6077 active_row.0 == end_row + 1
6078 && has_selection.selection == contains_non_empty_selection.selection
6079 })
6080 {
6081 active_rows.next().unwrap();
6082 end_row += 1;
6083 }
6084
6085 if show_active_line_background && !contains_non_empty_selection.selection {
6086 let highlight_h_range =
6087 match layout.position_map.snapshot.current_line_highlight {
6088 CurrentLineHighlight::Gutter => Some(Range {
6089 start: layout.hitbox.left(),
6090 end: layout.gutter_hitbox.right(),
6091 }),
6092 CurrentLineHighlight::Line => Some(Range {
6093 start: layout.position_map.text_hitbox.bounds.left(),
6094 end: layout.position_map.text_hitbox.bounds.right(),
6095 }),
6096 CurrentLineHighlight::All => Some(Range {
6097 start: layout.hitbox.left(),
6098 end: layout.hitbox.right(),
6099 }),
6100 CurrentLineHighlight::None => None,
6101 };
6102 if let Some(range) = highlight_h_range {
6103 let active_line_bg = cx.theme().colors().editor_active_line_background;
6104 let bounds = Bounds {
6105 origin: point(
6106 range.start,
6107 layout.hitbox.origin.y
6108 + Pixels::from(
6109 (start_row.as_f64() - scroll_top)
6110 * ScrollPixelOffset::from(
6111 layout.position_map.line_height,
6112 ),
6113 ),
6114 ),
6115 size: size(
6116 range.end - range.start,
6117 layout.position_map.line_height
6118 * (end_row - start_row.0 + 1) as f32,
6119 ),
6120 };
6121 window.paint_quad(fill(bounds, active_line_bg));
6122 }
6123 }
6124 }
6125
6126 let mut paint_highlight = |highlight_row_start: DisplayRow,
6127 highlight_row_end: DisplayRow,
6128 highlight: crate::LineHighlight,
6129 edges| {
6130 let mut origin_x = layout.hitbox.left();
6131 let mut width = layout.hitbox.size.width;
6132 if !highlight.include_gutter {
6133 origin_x += layout.gutter_hitbox.size.width;
6134 width -= layout.gutter_hitbox.size.width;
6135 }
6136
6137 let origin = point(
6138 origin_x,
6139 layout.hitbox.origin.y
6140 + Pixels::from(
6141 (highlight_row_start.as_f64() - scroll_top)
6142 * ScrollPixelOffset::from(layout.position_map.line_height),
6143 ),
6144 );
6145 let size = size(
6146 width,
6147 layout.position_map.line_height
6148 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
6149 );
6150 let mut quad = fill(Bounds { origin, size }, highlight.background);
6151 if let Some(border_color) = highlight.border {
6152 quad.border_color = border_color;
6153 quad.border_widths = edges
6154 }
6155 window.paint_quad(quad);
6156 };
6157
6158 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
6159 None;
6160 for (&new_row, &new_background) in &layout.highlighted_rows {
6161 match &mut current_paint {
6162 &mut Some((current_background, ref mut current_range, mut edges)) => {
6163 let new_range_started = current_background != new_background
6164 || current_range.end.next_row() != new_row;
6165 if new_range_started {
6166 if current_range.end.next_row() == new_row {
6167 edges.bottom = px(0.);
6168 };
6169 paint_highlight(
6170 current_range.start,
6171 current_range.end,
6172 current_background,
6173 edges,
6174 );
6175 let edges = Edges {
6176 top: if current_range.end.next_row() != new_row {
6177 px(1.)
6178 } else {
6179 px(0.)
6180 },
6181 bottom: px(1.),
6182 ..Default::default()
6183 };
6184 current_paint = Some((new_background, new_row..new_row, edges));
6185 continue;
6186 } else {
6187 current_range.end = current_range.end.next_row();
6188 }
6189 }
6190 None => {
6191 let edges = Edges {
6192 top: px(1.),
6193 bottom: px(1.),
6194 ..Default::default()
6195 };
6196 current_paint = Some((new_background, new_row..new_row, edges))
6197 }
6198 };
6199 }
6200 if let Some((color, range, edges)) = current_paint {
6201 paint_highlight(range.start, range.end, color, edges);
6202 }
6203
6204 for (guide_x, active) in layout.wrap_guides.iter() {
6205 let color = if *active {
6206 cx.theme().colors().editor_active_wrap_guide
6207 } else {
6208 cx.theme().colors().editor_wrap_guide
6209 };
6210 window.paint_quad(fill(
6211 Bounds {
6212 origin: point(*guide_x, layout.position_map.text_hitbox.origin.y),
6213 size: size(px(1.), layout.position_map.text_hitbox.size.height),
6214 },
6215 color,
6216 ));
6217 }
6218 }
6219 })
6220 }
6221
6222 fn paint_indent_guides(
6223 &mut self,
6224 layout: &mut EditorLayout,
6225 window: &mut Window,
6226 cx: &mut App,
6227 ) {
6228 let Some(indent_guides) = &layout.indent_guides else {
6229 return;
6230 };
6231
6232 let faded_color = |color: Hsla, alpha: f32| {
6233 let mut faded = color;
6234 faded.a = alpha;
6235 faded
6236 };
6237
6238 for indent_guide in indent_guides {
6239 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
6240 let settings = &indent_guide.settings;
6241
6242 // TODO fixed for now, expose them through themes later
6243 const INDENT_AWARE_ALPHA: f32 = 0.2;
6244 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
6245 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
6246 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
6247
6248 let line_color = match (settings.coloring, indent_guide.active) {
6249 (IndentGuideColoring::Disabled, _) => None,
6250 (IndentGuideColoring::Fixed, false) => {
6251 Some(cx.theme().colors().editor_indent_guide)
6252 }
6253 (IndentGuideColoring::Fixed, true) => {
6254 Some(cx.theme().colors().editor_indent_guide_active)
6255 }
6256 (IndentGuideColoring::IndentAware, false) => {
6257 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
6258 }
6259 (IndentGuideColoring::IndentAware, true) => {
6260 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
6261 }
6262 };
6263
6264 let background_color = match (settings.background_coloring, indent_guide.active) {
6265 (IndentGuideBackgroundColoring::Disabled, _) => None,
6266 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
6267 indent_accent_colors,
6268 INDENT_AWARE_BACKGROUND_ALPHA,
6269 )),
6270 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
6271 indent_accent_colors,
6272 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
6273 )),
6274 };
6275
6276 let requested_line_width = if indent_guide.active {
6277 settings.active_line_width
6278 } else {
6279 settings.line_width
6280 }
6281 .clamp(1, 10);
6282 let mut line_indicator_width = 0.;
6283 if let Some(color) = line_color {
6284 window.paint_quad(fill(
6285 Bounds {
6286 origin: indent_guide.origin,
6287 size: size(px(requested_line_width as f32), indent_guide.length),
6288 },
6289 color,
6290 ));
6291 line_indicator_width = requested_line_width as f32;
6292 }
6293
6294 if let Some(color) = background_color {
6295 let width = indent_guide.single_indent_width - px(line_indicator_width);
6296 window.paint_quad(fill(
6297 Bounds {
6298 origin: point(
6299 indent_guide.origin.x + px(line_indicator_width),
6300 indent_guide.origin.y,
6301 ),
6302 size: size(width, indent_guide.length),
6303 },
6304 color,
6305 ));
6306 }
6307 }
6308 }
6309
6310 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6311 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
6312
6313 let line_height = layout.position_map.line_height;
6314 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
6315
6316 for line_layout in layout.line_numbers.values() {
6317 for LineNumberSegment {
6318 shaped_line,
6319 hitbox,
6320 } in &line_layout.segments
6321 {
6322 let Some(hitbox) = hitbox else {
6323 continue;
6324 };
6325
6326 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
6327 let color = cx.theme().colors().editor_hover_line_number;
6328
6329 let line = self.shape_line_number(shaped_line.text.clone(), color, window);
6330 line.paint(
6331 hitbox.origin,
6332 line_height,
6333 TextAlign::Left,
6334 None,
6335 window,
6336 cx,
6337 )
6338 .log_err()
6339 } else {
6340 shaped_line
6341 .paint(
6342 hitbox.origin,
6343 line_height,
6344 TextAlign::Left,
6345 None,
6346 window,
6347 cx,
6348 )
6349 .log_err()
6350 }) else {
6351 continue;
6352 };
6353
6354 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
6355 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
6356 if is_singleton {
6357 window.set_cursor_style(CursorStyle::IBeam, hitbox);
6358 } else {
6359 window.set_cursor_style(CursorStyle::PointingHand, hitbox);
6360 }
6361 }
6362 }
6363 }
6364
6365 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6366 if layout.display_hunks.is_empty() {
6367 return;
6368 }
6369
6370 let line_height = layout.position_map.line_height;
6371 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6372 for (hunk, hitbox) in &layout.display_hunks {
6373 let hunk_to_paint = match hunk {
6374 DisplayDiffHunk::Folded { .. } => {
6375 let hunk_bounds = Self::diff_hunk_bounds(
6376 &layout.position_map.snapshot,
6377 line_height,
6378 layout.gutter_hitbox.bounds,
6379 hunk,
6380 );
6381 Some((
6382 hunk_bounds,
6383 cx.theme().colors().version_control_modified,
6384 Corners::all(px(0.)),
6385 DiffHunkStatus::modified_none(),
6386 ))
6387 }
6388 DisplayDiffHunk::Unfolded {
6389 status,
6390 display_row_range,
6391 ..
6392 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
6393 DiffHunkStatusKind::Added => (
6394 hunk_hitbox.bounds,
6395 cx.theme().colors().version_control_added,
6396 Corners::all(px(0.)),
6397 *status,
6398 ),
6399 DiffHunkStatusKind::Modified => (
6400 hunk_hitbox.bounds,
6401 cx.theme().colors().version_control_modified,
6402 Corners::all(px(0.)),
6403 *status,
6404 ),
6405 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
6406 hunk_hitbox.bounds,
6407 cx.theme().colors().version_control_deleted,
6408 Corners::all(px(0.)),
6409 *status,
6410 ),
6411 DiffHunkStatusKind::Deleted => (
6412 Bounds::new(
6413 point(
6414 hunk_hitbox.origin.x - hunk_hitbox.size.width,
6415 hunk_hitbox.origin.y,
6416 ),
6417 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
6418 ),
6419 cx.theme().colors().version_control_deleted,
6420 Corners::all(1. * line_height),
6421 *status,
6422 ),
6423 }),
6424 };
6425
6426 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
6427 // Flatten the background color with the editor color to prevent
6428 // elements below transparent hunks from showing through
6429 let flattened_background_color = cx
6430 .theme()
6431 .colors()
6432 .editor_background
6433 .blend(background_color);
6434
6435 if !Self::diff_hunk_hollow(status, cx) {
6436 window.paint_quad(quad(
6437 hunk_bounds,
6438 corner_radii,
6439 flattened_background_color,
6440 Edges::default(),
6441 transparent_black(),
6442 BorderStyle::default(),
6443 ));
6444 } else {
6445 let flattened_unstaged_background_color = cx
6446 .theme()
6447 .colors()
6448 .editor_background
6449 .blend(background_color.opacity(0.3));
6450
6451 window.paint_quad(quad(
6452 hunk_bounds,
6453 corner_radii,
6454 flattened_unstaged_background_color,
6455 Edges::all(px(1.0)),
6456 flattened_background_color,
6457 BorderStyle::Solid,
6458 ));
6459 }
6460 }
6461 }
6462 });
6463 }
6464
6465 fn gutter_strip_width(line_height: Pixels) -> Pixels {
6466 (0.275 * line_height).floor()
6467 }
6468
6469 fn diff_hunk_bounds(
6470 snapshot: &EditorSnapshot,
6471 line_height: Pixels,
6472 gutter_bounds: Bounds<Pixels>,
6473 hunk: &DisplayDiffHunk,
6474 ) -> Bounds<Pixels> {
6475 let scroll_position = snapshot.scroll_position();
6476 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
6477 let gutter_strip_width = Self::gutter_strip_width(line_height);
6478
6479 match hunk {
6480 DisplayDiffHunk::Folded { display_row, .. } => {
6481 let start_y = (display_row.as_f64() * ScrollPixelOffset::from(line_height)
6482 - scroll_top)
6483 .into();
6484 let end_y = start_y + line_height;
6485 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6486 let highlight_size = size(gutter_strip_width, end_y - start_y);
6487 Bounds::new(highlight_origin, highlight_size)
6488 }
6489 DisplayDiffHunk::Unfolded {
6490 display_row_range,
6491 status,
6492 ..
6493 } => {
6494 if status.is_deleted() && display_row_range.is_empty() {
6495 let row = display_row_range.start;
6496
6497 let offset = ScrollPixelOffset::from(line_height / 2.);
6498 let start_y =
6499 (row.as_f64() * ScrollPixelOffset::from(line_height) - offset - scroll_top)
6500 .into();
6501 let end_y = start_y + line_height;
6502
6503 let width = (0.35 * line_height).floor();
6504 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6505 let highlight_size = size(width, end_y - start_y);
6506 Bounds::new(highlight_origin, highlight_size)
6507 } else {
6508 let start_row = display_row_range.start;
6509 let end_row = display_row_range.end;
6510 // If we're in a multibuffer, row range span might include an
6511 // excerpt header, so if we were to draw the marker straight away,
6512 // the hunk might include the rows of that header.
6513 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
6514 // Instead, we simply check whether the range we're dealing with includes
6515 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
6516 let end_row_in_current_excerpt = snapshot
6517 .blocks_in_range(start_row..end_row)
6518 .find_map(|(start_row, block)| {
6519 if matches!(
6520 block,
6521 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
6522 ) {
6523 Some(start_row)
6524 } else {
6525 None
6526 }
6527 })
6528 .unwrap_or(end_row);
6529
6530 let start_y = (start_row.as_f64() * ScrollPixelOffset::from(line_height)
6531 - scroll_top)
6532 .into();
6533 let end_y = Pixels::from(
6534 end_row_in_current_excerpt.as_f64() * ScrollPixelOffset::from(line_height)
6535 - scroll_top,
6536 );
6537
6538 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6539 let highlight_size = size(gutter_strip_width, end_y - start_y);
6540 Bounds::new(highlight_origin, highlight_size)
6541 }
6542 }
6543 }
6544 }
6545
6546 fn paint_gutter_indicators(
6547 &self,
6548 layout: &mut EditorLayout,
6549 window: &mut Window,
6550 cx: &mut App,
6551 ) {
6552 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6553 window.with_element_namespace("crease_toggles", |window| {
6554 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
6555 crease_toggle.paint(window, cx);
6556 }
6557 });
6558
6559 window.with_element_namespace("expand_toggles", |window| {
6560 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
6561 expand_toggle.paint(window, cx);
6562 }
6563 });
6564
6565 for breakpoint in layout.breakpoints.iter_mut() {
6566 breakpoint.paint(window, cx);
6567 }
6568
6569 for test_indicator in layout.test_indicators.iter_mut() {
6570 test_indicator.paint(window, cx);
6571 }
6572
6573 if let Some(diff_review_button) = layout.diff_review_button.as_mut() {
6574 diff_review_button.paint(window, cx);
6575 }
6576 });
6577 }
6578
6579 fn paint_gutter_highlights(
6580 &self,
6581 layout: &mut EditorLayout,
6582 window: &mut Window,
6583 cx: &mut App,
6584 ) {
6585 for (_, hunk_hitbox) in &layout.display_hunks {
6586 if let Some(hunk_hitbox) = hunk_hitbox
6587 && !self
6588 .editor
6589 .read(cx)
6590 .buffer()
6591 .read(cx)
6592 .all_diff_hunks_expanded()
6593 {
6594 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
6595 }
6596 }
6597
6598 let show_git_gutter = layout
6599 .position_map
6600 .snapshot
6601 .show_git_diff_gutter
6602 .unwrap_or_else(|| {
6603 matches!(
6604 ProjectSettings::get_global(cx).git.git_gutter,
6605 GitGutterSetting::TrackedFiles
6606 )
6607 });
6608 if show_git_gutter {
6609 Self::paint_gutter_diff_hunks(layout, window, cx)
6610 }
6611
6612 let highlight_width = 0.275 * layout.position_map.line_height;
6613 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
6614 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6615 for (range, color) in &layout.highlighted_gutter_ranges {
6616 let start_row = if range.start.row() < layout.visible_display_row_range.start {
6617 layout.visible_display_row_range.start - DisplayRow(1)
6618 } else {
6619 range.start.row()
6620 };
6621 let end_row = if range.end.row() > layout.visible_display_row_range.end {
6622 layout.visible_display_row_range.end + DisplayRow(1)
6623 } else {
6624 range.end.row()
6625 };
6626
6627 let start_y = layout.gutter_hitbox.top()
6628 + Pixels::from(
6629 start_row.0 as f64
6630 * ScrollPixelOffset::from(layout.position_map.line_height)
6631 - layout.position_map.scroll_pixel_position.y,
6632 );
6633 let end_y = layout.gutter_hitbox.top()
6634 + Pixels::from(
6635 (end_row.0 + 1) as f64
6636 * ScrollPixelOffset::from(layout.position_map.line_height)
6637 - layout.position_map.scroll_pixel_position.y,
6638 );
6639 let bounds = Bounds::from_corners(
6640 point(layout.gutter_hitbox.left(), start_y),
6641 point(layout.gutter_hitbox.left() + highlight_width, end_y),
6642 );
6643 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
6644 }
6645 });
6646 }
6647
6648 fn paint_blamed_display_rows(
6649 &self,
6650 layout: &mut EditorLayout,
6651 window: &mut Window,
6652 cx: &mut App,
6653 ) {
6654 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
6655 return;
6656 };
6657
6658 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6659 for mut blame_element in blamed_display_rows.into_iter() {
6660 blame_element.paint(window, cx);
6661 }
6662 })
6663 }
6664
6665 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6666 window.with_content_mask(
6667 Some(ContentMask {
6668 bounds: layout.position_map.text_hitbox.bounds,
6669 }),
6670 |window| {
6671 let editor = self.editor.read(cx);
6672 if editor.mouse_cursor_hidden {
6673 window.set_window_cursor_style(CursorStyle::None);
6674 } else if let SelectionDragState::ReadyToDrag {
6675 mouse_down_time, ..
6676 } = &editor.selection_drag_state
6677 {
6678 let drag_and_drop_delay = Duration::from_millis(
6679 EditorSettings::get_global(cx)
6680 .drag_and_drop_selection
6681 .delay
6682 .0,
6683 );
6684 if mouse_down_time.elapsed() >= drag_and_drop_delay {
6685 window.set_cursor_style(
6686 CursorStyle::DragCopy,
6687 &layout.position_map.text_hitbox,
6688 );
6689 }
6690 } else if matches!(
6691 editor.selection_drag_state,
6692 SelectionDragState::Dragging { .. }
6693 ) {
6694 window
6695 .set_cursor_style(CursorStyle::DragCopy, &layout.position_map.text_hitbox);
6696 } else if editor
6697 .hovered_link_state
6698 .as_ref()
6699 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
6700 {
6701 window.set_cursor_style(
6702 CursorStyle::PointingHand,
6703 &layout.position_map.text_hitbox,
6704 );
6705 } else {
6706 window.set_cursor_style(CursorStyle::IBeam, &layout.position_map.text_hitbox);
6707 };
6708
6709 self.paint_lines_background(layout, window, cx);
6710 let invisible_display_ranges = self.paint_highlights(layout, window, cx);
6711 self.paint_document_colors(layout, window);
6712 self.paint_lines(&invisible_display_ranges, layout, window, cx);
6713 self.paint_redactions(layout, window);
6714 self.paint_cursors(layout, window, cx);
6715 self.paint_inline_diagnostics(layout, window, cx);
6716 self.paint_inline_blame(layout, window, cx);
6717 self.paint_inline_code_actions(layout, window, cx);
6718 self.paint_diff_hunk_controls(layout, window, cx);
6719 window.with_element_namespace("crease_trailers", |window| {
6720 for trailer in layout.crease_trailers.iter_mut().flatten() {
6721 trailer.element.paint(window, cx);
6722 }
6723 });
6724 },
6725 )
6726 }
6727
6728 fn paint_highlights(
6729 &mut self,
6730 layout: &mut EditorLayout,
6731 window: &mut Window,
6732 cx: &mut App,
6733 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
6734 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6735 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
6736 let line_end_overshoot = 0.15 * layout.position_map.line_height;
6737 for (range, color) in &layout.highlighted_ranges {
6738 self.paint_highlighted_range(
6739 range.clone(),
6740 true,
6741 *color,
6742 Pixels::ZERO,
6743 line_end_overshoot,
6744 layout,
6745 window,
6746 );
6747 }
6748
6749 let corner_radius = if EditorSettings::get_global(cx).rounded_selection {
6750 0.15 * layout.position_map.line_height
6751 } else {
6752 Pixels::ZERO
6753 };
6754
6755 for (player_color, selections) in &layout.selections {
6756 for selection in selections.iter() {
6757 self.paint_highlighted_range(
6758 selection.range.clone(),
6759 true,
6760 player_color.selection,
6761 corner_radius,
6762 corner_radius * 2.,
6763 layout,
6764 window,
6765 );
6766
6767 if selection.is_local && !selection.range.is_empty() {
6768 invisible_display_ranges.push(selection.range.clone());
6769 }
6770 }
6771 }
6772 invisible_display_ranges
6773 })
6774 }
6775
6776 fn paint_lines(
6777 &mut self,
6778 invisible_display_ranges: &[Range<DisplayPoint>],
6779 layout: &mut EditorLayout,
6780 window: &mut Window,
6781 cx: &mut App,
6782 ) {
6783 let whitespace_setting = self
6784 .editor
6785 .read(cx)
6786 .buffer
6787 .read(cx)
6788 .language_settings(cx)
6789 .show_whitespaces;
6790
6791 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6792 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6793 line_with_invisibles.draw(
6794 layout,
6795 row,
6796 layout.content_origin,
6797 whitespace_setting,
6798 invisible_display_ranges,
6799 window,
6800 cx,
6801 )
6802 }
6803
6804 for line_element in &mut layout.line_elements {
6805 line_element.paint(window, cx);
6806 }
6807 }
6808
6809 fn paint_sticky_headers(
6810 &mut self,
6811 layout: &mut EditorLayout,
6812 window: &mut Window,
6813 cx: &mut App,
6814 ) {
6815 let Some(mut sticky_headers) = layout.sticky_headers.take() else {
6816 return;
6817 };
6818
6819 if sticky_headers.lines.is_empty() {
6820 layout.sticky_headers = Some(sticky_headers);
6821 return;
6822 }
6823
6824 let whitespace_setting = self
6825 .editor
6826 .read(cx)
6827 .buffer
6828 .read(cx)
6829 .language_settings(cx)
6830 .show_whitespaces;
6831 sticky_headers.paint(layout, whitespace_setting, window, cx);
6832
6833 let sticky_header_hitboxes: Vec<Hitbox> = sticky_headers
6834 .lines
6835 .iter()
6836 .map(|line| line.hitbox.clone())
6837 .collect();
6838 let hovered_hitbox = sticky_header_hitboxes
6839 .iter()
6840 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6841
6842 window.on_mouse_event(move |_: &MouseMoveEvent, phase, window, _cx| {
6843 if !phase.bubble() {
6844 return;
6845 }
6846
6847 let current_hover = sticky_header_hitboxes
6848 .iter()
6849 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6850 if hovered_hitbox != current_hover {
6851 window.refresh();
6852 }
6853 });
6854
6855 for (line_index, line) in sticky_headers.lines.iter().enumerate() {
6856 let editor = self.editor.clone();
6857 let hitbox = line.hitbox.clone();
6858 let target_anchor = line.target_anchor;
6859 window.on_mouse_event(move |event: &MouseDownEvent, phase, window, cx| {
6860 if !phase.bubble() {
6861 return;
6862 }
6863
6864 if event.button == MouseButton::Left && hitbox.is_hovered(window) {
6865 editor.update(cx, |editor, cx| {
6866 editor.change_selections(
6867 SelectionEffects::scroll(Autoscroll::top_relative(line_index)),
6868 window,
6869 cx,
6870 |selections| selections.select_ranges([target_anchor..target_anchor]),
6871 );
6872 cx.stop_propagation();
6873 });
6874 }
6875 });
6876 }
6877
6878 let text_bounds = layout.position_map.text_hitbox.bounds;
6879 let border_top = text_bounds.top()
6880 + sticky_headers.lines.last().unwrap().offset
6881 + layout.position_map.line_height;
6882 let separator_height = px(1.);
6883 let border_bounds = Bounds::from_corners(
6884 point(layout.gutter_hitbox.bounds.left(), border_top),
6885 point(text_bounds.right(), border_top + separator_height),
6886 );
6887 window.paint_quad(fill(border_bounds, cx.theme().colors().border_variant));
6888
6889 layout.sticky_headers = Some(sticky_headers);
6890 }
6891
6892 fn paint_lines_background(
6893 &mut self,
6894 layout: &mut EditorLayout,
6895 window: &mut Window,
6896 cx: &mut App,
6897 ) {
6898 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6899 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6900 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
6901 }
6902 }
6903
6904 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
6905 if layout.redacted_ranges.is_empty() {
6906 return;
6907 }
6908
6909 let line_end_overshoot = layout.line_end_overshoot();
6910
6911 // A softer than perfect black
6912 let redaction_color = gpui::rgb(0x0e1111);
6913
6914 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6915 for range in layout.redacted_ranges.iter() {
6916 self.paint_highlighted_range(
6917 range.clone(),
6918 true,
6919 redaction_color.into(),
6920 Pixels::ZERO,
6921 line_end_overshoot,
6922 layout,
6923 window,
6924 );
6925 }
6926 });
6927 }
6928
6929 fn paint_document_colors(&self, layout: &mut EditorLayout, window: &mut Window) {
6930 let Some((colors_render_mode, image_colors)) = &layout.document_colors else {
6931 return;
6932 };
6933 if image_colors.is_empty()
6934 || colors_render_mode == &DocumentColorsRenderMode::None
6935 || colors_render_mode == &DocumentColorsRenderMode::Inlay
6936 {
6937 return;
6938 }
6939
6940 let line_end_overshoot = layout.line_end_overshoot();
6941
6942 for (range, color) in image_colors {
6943 match colors_render_mode {
6944 DocumentColorsRenderMode::Inlay | DocumentColorsRenderMode::None => return,
6945 DocumentColorsRenderMode::Background => {
6946 self.paint_highlighted_range(
6947 range.clone(),
6948 true,
6949 *color,
6950 Pixels::ZERO,
6951 line_end_overshoot,
6952 layout,
6953 window,
6954 );
6955 }
6956 DocumentColorsRenderMode::Border => {
6957 self.paint_highlighted_range(
6958 range.clone(),
6959 false,
6960 *color,
6961 Pixels::ZERO,
6962 line_end_overshoot,
6963 layout,
6964 window,
6965 );
6966 }
6967 }
6968 }
6969 }
6970
6971 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6972 for cursor in &mut layout.visible_cursors {
6973 cursor.paint(layout.content_origin, window, cx);
6974 }
6975 }
6976
6977 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6978 let Some(scrollbars_layout) = layout.scrollbars_layout.take() else {
6979 return;
6980 };
6981 let any_scrollbar_dragged = self.editor.read(cx).scroll_manager.any_scrollbar_dragged();
6982
6983 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
6984 let hitbox = &scrollbar_layout.hitbox;
6985 if scrollbars_layout.visible {
6986 let scrollbar_edges = match axis {
6987 ScrollbarAxis::Horizontal => Edges {
6988 top: Pixels::ZERO,
6989 right: Pixels::ZERO,
6990 bottom: Pixels::ZERO,
6991 left: Pixels::ZERO,
6992 },
6993 ScrollbarAxis::Vertical => Edges {
6994 top: Pixels::ZERO,
6995 right: Pixels::ZERO,
6996 bottom: Pixels::ZERO,
6997 left: ScrollbarLayout::BORDER_WIDTH,
6998 },
6999 };
7000
7001 window.paint_layer(hitbox.bounds, |window| {
7002 window.paint_quad(quad(
7003 hitbox.bounds,
7004 Corners::default(),
7005 cx.theme().colors().scrollbar_track_background,
7006 scrollbar_edges,
7007 cx.theme().colors().scrollbar_track_border,
7008 BorderStyle::Solid,
7009 ));
7010
7011 if axis == ScrollbarAxis::Vertical {
7012 let fast_markers =
7013 self.collect_fast_scrollbar_markers(layout, scrollbar_layout, cx);
7014 // Refresh slow scrollbar markers in the background. Below, we
7015 // paint whatever markers have already been computed.
7016 self.refresh_slow_scrollbar_markers(layout, scrollbar_layout, window, cx);
7017
7018 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
7019 for marker in markers.iter().chain(&fast_markers) {
7020 let mut marker = marker.clone();
7021 marker.bounds.origin += hitbox.origin;
7022 window.paint_quad(marker);
7023 }
7024 }
7025
7026 if let Some(thumb_bounds) = scrollbar_layout.thumb_bounds {
7027 let scrollbar_thumb_color = match scrollbar_layout.thumb_state {
7028 ScrollbarThumbState::Dragging => {
7029 cx.theme().colors().scrollbar_thumb_active_background
7030 }
7031 ScrollbarThumbState::Hovered => {
7032 cx.theme().colors().scrollbar_thumb_hover_background
7033 }
7034 ScrollbarThumbState::Idle => {
7035 cx.theme().colors().scrollbar_thumb_background
7036 }
7037 };
7038 window.paint_quad(quad(
7039 thumb_bounds,
7040 Corners::default(),
7041 scrollbar_thumb_color,
7042 scrollbar_edges,
7043 cx.theme().colors().scrollbar_thumb_border,
7044 BorderStyle::Solid,
7045 ));
7046
7047 if any_scrollbar_dragged {
7048 window.set_window_cursor_style(CursorStyle::Arrow);
7049 } else {
7050 window.set_cursor_style(CursorStyle::Arrow, hitbox);
7051 }
7052 }
7053 })
7054 }
7055 }
7056
7057 window.on_mouse_event({
7058 let editor = self.editor.clone();
7059 let scrollbars_layout = scrollbars_layout.clone();
7060
7061 let mut mouse_position = window.mouse_position();
7062 move |event: &MouseMoveEvent, phase, window, cx| {
7063 if phase == DispatchPhase::Capture {
7064 return;
7065 }
7066
7067 editor.update(cx, |editor, cx| {
7068 if let Some((scrollbar_layout, axis)) = event
7069 .pressed_button
7070 .filter(|button| *button == MouseButton::Left)
7071 .and(editor.scroll_manager.dragging_scrollbar_axis())
7072 .and_then(|axis| {
7073 scrollbars_layout
7074 .iter_scrollbars()
7075 .find(|(_, a)| *a == axis)
7076 })
7077 {
7078 let ScrollbarLayout {
7079 hitbox,
7080 text_unit_size,
7081 ..
7082 } = scrollbar_layout;
7083
7084 let old_position = mouse_position.along(axis);
7085 let new_position = event.position.along(axis);
7086 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
7087 .contains(&old_position)
7088 {
7089 let position = editor.scroll_position(cx).apply_along(axis, |p| {
7090 (p + ScrollOffset::from(
7091 (new_position - old_position) / *text_unit_size,
7092 ))
7093 .max(0.)
7094 });
7095 editor.set_scroll_position(position, window, cx);
7096 }
7097
7098 editor.scroll_manager.show_scrollbars(window, cx);
7099 cx.stop_propagation();
7100 } else if let Some((layout, axis)) = scrollbars_layout
7101 .get_hovered_axis(window)
7102 .filter(|_| !event.dragging())
7103 {
7104 if layout.thumb_hovered(&event.position) {
7105 editor
7106 .scroll_manager
7107 .set_hovered_scroll_thumb_axis(axis, cx);
7108 } else {
7109 editor.scroll_manager.reset_scrollbar_state(cx);
7110 }
7111
7112 editor.scroll_manager.show_scrollbars(window, cx);
7113 } else {
7114 editor.scroll_manager.reset_scrollbar_state(cx);
7115 }
7116
7117 mouse_position = event.position;
7118 })
7119 }
7120 });
7121
7122 if any_scrollbar_dragged {
7123 window.on_mouse_event({
7124 let editor = self.editor.clone();
7125 move |_: &MouseUpEvent, phase, window, cx| {
7126 if phase == DispatchPhase::Capture {
7127 return;
7128 }
7129
7130 editor.update(cx, |editor, cx| {
7131 if let Some((_, axis)) = scrollbars_layout.get_hovered_axis(window) {
7132 editor
7133 .scroll_manager
7134 .set_hovered_scroll_thumb_axis(axis, cx);
7135 } else {
7136 editor.scroll_manager.reset_scrollbar_state(cx);
7137 }
7138 cx.stop_propagation();
7139 });
7140 }
7141 });
7142 } else {
7143 window.on_mouse_event({
7144 let editor = self.editor.clone();
7145
7146 move |event: &MouseDownEvent, phase, window, cx| {
7147 if phase == DispatchPhase::Capture {
7148 return;
7149 }
7150 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
7151 else {
7152 return;
7153 };
7154
7155 let ScrollbarLayout {
7156 hitbox,
7157 visible_range,
7158 text_unit_size,
7159 thumb_bounds,
7160 ..
7161 } = scrollbar_layout;
7162
7163 let Some(thumb_bounds) = thumb_bounds else {
7164 return;
7165 };
7166
7167 editor.update(cx, |editor, cx| {
7168 editor
7169 .scroll_manager
7170 .set_dragged_scroll_thumb_axis(axis, cx);
7171
7172 let event_position = event.position.along(axis);
7173
7174 if event_position < thumb_bounds.origin.along(axis)
7175 || thumb_bounds.bottom_right().along(axis) < event_position
7176 {
7177 let center_position = ((event_position - hitbox.origin.along(axis))
7178 / *text_unit_size)
7179 .round() as u32;
7180 let start_position = center_position.saturating_sub(
7181 (visible_range.end - visible_range.start) as u32 / 2,
7182 );
7183
7184 let position = editor
7185 .scroll_position(cx)
7186 .apply_along(axis, |_| start_position as ScrollOffset);
7187
7188 editor.set_scroll_position(position, window, cx);
7189 } else {
7190 editor.scroll_manager.show_scrollbars(window, cx);
7191 }
7192
7193 cx.stop_propagation();
7194 });
7195 }
7196 });
7197 }
7198 }
7199
7200 fn collect_fast_scrollbar_markers(
7201 &self,
7202 layout: &EditorLayout,
7203 scrollbar_layout: &ScrollbarLayout,
7204 cx: &mut App,
7205 ) -> Vec<PaintQuad> {
7206 const LIMIT: usize = 100;
7207 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
7208 return vec![];
7209 }
7210 let cursor_ranges = layout
7211 .cursors
7212 .iter()
7213 .map(|(point, color)| ColoredRange {
7214 start: point.row(),
7215 end: point.row(),
7216 color: *color,
7217 })
7218 .collect_vec();
7219 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
7220 }
7221
7222 fn refresh_slow_scrollbar_markers(
7223 &self,
7224 layout: &EditorLayout,
7225 scrollbar_layout: &ScrollbarLayout,
7226 window: &mut Window,
7227 cx: &mut App,
7228 ) {
7229 self.editor.update(cx, |editor, cx| {
7230 if editor.buffer_kind(cx) != ItemBufferKind::Singleton
7231 || !editor
7232 .scrollbar_marker_state
7233 .should_refresh(scrollbar_layout.hitbox.size)
7234 {
7235 return;
7236 }
7237
7238 let scrollbar_layout = scrollbar_layout.clone();
7239 let background_highlights = editor.background_highlights.clone();
7240 let snapshot = layout.position_map.snapshot.clone();
7241 let theme = cx.theme().clone();
7242 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
7243
7244 editor.scrollbar_marker_state.dirty = false;
7245 editor.scrollbar_marker_state.pending_refresh =
7246 Some(cx.spawn_in(window, async move |editor, cx| {
7247 let scrollbar_size = scrollbar_layout.hitbox.size;
7248 let scrollbar_markers = cx
7249 .background_spawn(async move {
7250 let max_point = snapshot.display_snapshot.buffer_snapshot().max_point();
7251 let mut marker_quads = Vec::new();
7252 if scrollbar_settings.git_diff {
7253 let marker_row_ranges =
7254 snapshot.buffer_snapshot().diff_hunks().map(|hunk| {
7255 let start_display_row =
7256 MultiBufferPoint::new(hunk.row_range.start.0, 0)
7257 .to_display_point(&snapshot.display_snapshot)
7258 .row();
7259 let mut end_display_row =
7260 MultiBufferPoint::new(hunk.row_range.end.0, 0)
7261 .to_display_point(&snapshot.display_snapshot)
7262 .row();
7263 if end_display_row != start_display_row {
7264 end_display_row.0 -= 1;
7265 }
7266 let color = match &hunk.status().kind {
7267 DiffHunkStatusKind::Added => {
7268 theme.colors().version_control_added
7269 }
7270 DiffHunkStatusKind::Modified => {
7271 theme.colors().version_control_modified
7272 }
7273 DiffHunkStatusKind::Deleted => {
7274 theme.colors().version_control_deleted
7275 }
7276 };
7277 ColoredRange {
7278 start: start_display_row,
7279 end: end_display_row,
7280 color,
7281 }
7282 });
7283
7284 marker_quads.extend(
7285 scrollbar_layout
7286 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
7287 );
7288 }
7289
7290 for (background_highlight_id, (_, background_ranges)) in
7291 background_highlights.iter()
7292 {
7293 let is_search_highlights = *background_highlight_id
7294 == HighlightKey::Type(TypeId::of::<BufferSearchHighlights>());
7295 let is_text_highlights = *background_highlight_id
7296 == HighlightKey::Type(TypeId::of::<SelectedTextHighlight>());
7297 let is_symbol_occurrences = *background_highlight_id
7298 == HighlightKey::Type(TypeId::of::<DocumentHighlightRead>())
7299 || *background_highlight_id
7300 == HighlightKey::Type(
7301 TypeId::of::<DocumentHighlightWrite>(),
7302 );
7303 if (is_search_highlights && scrollbar_settings.search_results)
7304 || (is_text_highlights && scrollbar_settings.selected_text)
7305 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
7306 {
7307 let mut color = theme.status().info;
7308 if is_symbol_occurrences {
7309 color.fade_out(0.5);
7310 }
7311 let marker_row_ranges = background_ranges.iter().map(|range| {
7312 let display_start = range
7313 .start
7314 .to_display_point(&snapshot.display_snapshot);
7315 let display_end =
7316 range.end.to_display_point(&snapshot.display_snapshot);
7317 ColoredRange {
7318 start: display_start.row(),
7319 end: display_end.row(),
7320 color,
7321 }
7322 });
7323 marker_quads.extend(
7324 scrollbar_layout
7325 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
7326 );
7327 }
7328 }
7329
7330 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
7331 let diagnostics = snapshot
7332 .buffer_snapshot()
7333 .diagnostics_in_range::<Point>(Point::zero()..max_point)
7334 // Don't show diagnostics the user doesn't care about
7335 .filter(|diagnostic| {
7336 match (
7337 scrollbar_settings.diagnostics,
7338 diagnostic.diagnostic.severity,
7339 ) {
7340 (ScrollbarDiagnostics::All, _) => true,
7341 (
7342 ScrollbarDiagnostics::Error,
7343 lsp::DiagnosticSeverity::ERROR,
7344 ) => true,
7345 (
7346 ScrollbarDiagnostics::Warning,
7347 lsp::DiagnosticSeverity::ERROR
7348 | lsp::DiagnosticSeverity::WARNING,
7349 ) => true,
7350 (
7351 ScrollbarDiagnostics::Information,
7352 lsp::DiagnosticSeverity::ERROR
7353 | lsp::DiagnosticSeverity::WARNING
7354 | lsp::DiagnosticSeverity::INFORMATION,
7355 ) => true,
7356 (_, _) => false,
7357 }
7358 })
7359 // We want to sort by severity, in order to paint the most severe diagnostics last.
7360 .sorted_by_key(|diagnostic| {
7361 std::cmp::Reverse(diagnostic.diagnostic.severity)
7362 });
7363
7364 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
7365 let start_display = diagnostic
7366 .range
7367 .start
7368 .to_display_point(&snapshot.display_snapshot);
7369 let end_display = diagnostic
7370 .range
7371 .end
7372 .to_display_point(&snapshot.display_snapshot);
7373 let color = match diagnostic.diagnostic.severity {
7374 lsp::DiagnosticSeverity::ERROR => theme.status().error,
7375 lsp::DiagnosticSeverity::WARNING => theme.status().warning,
7376 lsp::DiagnosticSeverity::INFORMATION => theme.status().info,
7377 _ => theme.status().hint,
7378 };
7379 ColoredRange {
7380 start: start_display.row(),
7381 end: end_display.row(),
7382 color,
7383 }
7384 });
7385 marker_quads.extend(
7386 scrollbar_layout
7387 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
7388 );
7389 }
7390
7391 Arc::from(marker_quads)
7392 })
7393 .await;
7394
7395 editor.update(cx, |editor, cx| {
7396 editor.scrollbar_marker_state.markers = scrollbar_markers;
7397 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
7398 editor.scrollbar_marker_state.pending_refresh = None;
7399 cx.notify();
7400 })?;
7401
7402 Ok(())
7403 }));
7404 });
7405 }
7406
7407 fn paint_highlighted_range(
7408 &self,
7409 range: Range<DisplayPoint>,
7410 fill: bool,
7411 color: Hsla,
7412 corner_radius: Pixels,
7413 line_end_overshoot: Pixels,
7414 layout: &EditorLayout,
7415 window: &mut Window,
7416 ) {
7417 let start_row = layout.visible_display_row_range.start;
7418 let end_row = layout.visible_display_row_range.end;
7419 if range.start != range.end {
7420 let row_range = if range.end.column() == 0 {
7421 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
7422 } else {
7423 cmp::max(range.start.row(), start_row)
7424 ..cmp::min(range.end.row().next_row(), end_row)
7425 };
7426
7427 let highlighted_range = HighlightedRange {
7428 color,
7429 line_height: layout.position_map.line_height,
7430 corner_radius,
7431 start_y: layout.content_origin.y
7432 + Pixels::from(
7433 (row_range.start.as_f64() - layout.position_map.scroll_position.y)
7434 * ScrollOffset::from(layout.position_map.line_height),
7435 ),
7436 lines: row_range
7437 .iter_rows()
7438 .map(|row| {
7439 let line_layout =
7440 &layout.position_map.line_layouts[row.minus(start_row) as usize];
7441 let alignment_offset =
7442 line_layout.alignment_offset(layout.text_align, layout.content_width);
7443 HighlightedRangeLine {
7444 start_x: if row == range.start.row() {
7445 layout.content_origin.x
7446 + Pixels::from(
7447 ScrollPixelOffset::from(
7448 line_layout.x_for_index(range.start.column() as usize)
7449 + alignment_offset,
7450 ) - layout.position_map.scroll_pixel_position.x,
7451 )
7452 } else {
7453 layout.content_origin.x + alignment_offset
7454 - Pixels::from(layout.position_map.scroll_pixel_position.x)
7455 },
7456 end_x: if row == range.end.row() {
7457 layout.content_origin.x
7458 + Pixels::from(
7459 ScrollPixelOffset::from(
7460 line_layout.x_for_index(range.end.column() as usize)
7461 + alignment_offset,
7462 ) - layout.position_map.scroll_pixel_position.x,
7463 )
7464 } else {
7465 Pixels::from(
7466 ScrollPixelOffset::from(
7467 layout.content_origin.x
7468 + line_layout.width
7469 + alignment_offset
7470 + line_end_overshoot,
7471 ) - layout.position_map.scroll_pixel_position.x,
7472 )
7473 },
7474 }
7475 })
7476 .collect(),
7477 };
7478
7479 highlighted_range.paint(fill, layout.position_map.text_hitbox.bounds, window);
7480 }
7481 }
7482
7483 fn paint_inline_diagnostics(
7484 &mut self,
7485 layout: &mut EditorLayout,
7486 window: &mut Window,
7487 cx: &mut App,
7488 ) {
7489 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
7490 inline_diagnostic.1.paint(window, cx);
7491 }
7492 }
7493
7494 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7495 if let Some(mut blame_layout) = layout.inline_blame_layout.take() {
7496 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7497 blame_layout.element.paint(window, cx);
7498 })
7499 }
7500 }
7501
7502 fn paint_inline_code_actions(
7503 &mut self,
7504 layout: &mut EditorLayout,
7505 window: &mut Window,
7506 cx: &mut App,
7507 ) {
7508 if let Some(mut inline_code_actions) = layout.inline_code_actions.take() {
7509 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7510 inline_code_actions.paint(window, cx);
7511 })
7512 }
7513 }
7514
7515 fn paint_diff_hunk_controls(
7516 &mut self,
7517 layout: &mut EditorLayout,
7518 window: &mut Window,
7519 cx: &mut App,
7520 ) {
7521 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
7522 diff_hunk_control.paint(window, cx);
7523 }
7524 }
7525
7526 fn paint_minimap(&self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7527 if let Some(mut layout) = layout.minimap.take() {
7528 let minimap_hitbox = layout.thumb_layout.hitbox.clone();
7529 let dragging_minimap = self.editor.read(cx).scroll_manager.is_dragging_minimap();
7530
7531 window.paint_layer(layout.thumb_layout.hitbox.bounds, |window| {
7532 window.with_element_namespace("minimap", |window| {
7533 layout.minimap.paint(window, cx);
7534 if let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds {
7535 let minimap_thumb_color = match layout.thumb_layout.thumb_state {
7536 ScrollbarThumbState::Idle => {
7537 cx.theme().colors().minimap_thumb_background
7538 }
7539 ScrollbarThumbState::Hovered => {
7540 cx.theme().colors().minimap_thumb_hover_background
7541 }
7542 ScrollbarThumbState::Dragging => {
7543 cx.theme().colors().minimap_thumb_active_background
7544 }
7545 };
7546 let minimap_thumb_border = match layout.thumb_border_style {
7547 MinimapThumbBorder::Full => Edges::all(ScrollbarLayout::BORDER_WIDTH),
7548 MinimapThumbBorder::LeftOnly => Edges {
7549 left: ScrollbarLayout::BORDER_WIDTH,
7550 ..Default::default()
7551 },
7552 MinimapThumbBorder::LeftOpen => Edges {
7553 right: ScrollbarLayout::BORDER_WIDTH,
7554 top: ScrollbarLayout::BORDER_WIDTH,
7555 bottom: ScrollbarLayout::BORDER_WIDTH,
7556 ..Default::default()
7557 },
7558 MinimapThumbBorder::RightOpen => Edges {
7559 left: ScrollbarLayout::BORDER_WIDTH,
7560 top: ScrollbarLayout::BORDER_WIDTH,
7561 bottom: ScrollbarLayout::BORDER_WIDTH,
7562 ..Default::default()
7563 },
7564 MinimapThumbBorder::None => Default::default(),
7565 };
7566
7567 window.paint_layer(minimap_hitbox.bounds, |window| {
7568 window.paint_quad(quad(
7569 thumb_bounds,
7570 Corners::default(),
7571 minimap_thumb_color,
7572 minimap_thumb_border,
7573 cx.theme().colors().minimap_thumb_border,
7574 BorderStyle::Solid,
7575 ));
7576 });
7577 }
7578 });
7579 });
7580
7581 if dragging_minimap {
7582 window.set_window_cursor_style(CursorStyle::Arrow);
7583 } else {
7584 window.set_cursor_style(CursorStyle::Arrow, &minimap_hitbox);
7585 }
7586
7587 let minimap_axis = ScrollbarAxis::Vertical;
7588 let pixels_per_line = Pixels::from(
7589 ScrollPixelOffset::from(minimap_hitbox.size.height) / layout.max_scroll_top,
7590 )
7591 .min(layout.minimap_line_height);
7592
7593 let mut mouse_position = window.mouse_position();
7594
7595 window.on_mouse_event({
7596 let editor = self.editor.clone();
7597
7598 let minimap_hitbox = minimap_hitbox.clone();
7599
7600 move |event: &MouseMoveEvent, phase, window, cx| {
7601 if phase == DispatchPhase::Capture {
7602 return;
7603 }
7604
7605 editor.update(cx, |editor, cx| {
7606 if event.pressed_button == Some(MouseButton::Left)
7607 && editor.scroll_manager.is_dragging_minimap()
7608 {
7609 let old_position = mouse_position.along(minimap_axis);
7610 let new_position = event.position.along(minimap_axis);
7611 if (minimap_hitbox.origin.along(minimap_axis)
7612 ..minimap_hitbox.bottom_right().along(minimap_axis))
7613 .contains(&old_position)
7614 {
7615 let position =
7616 editor.scroll_position(cx).apply_along(minimap_axis, |p| {
7617 (p + ScrollPixelOffset::from(
7618 (new_position - old_position) / pixels_per_line,
7619 ))
7620 .max(0.)
7621 });
7622
7623 editor.set_scroll_position(position, window, cx);
7624 }
7625 cx.stop_propagation();
7626 } else if minimap_hitbox.is_hovered(window) {
7627 editor.scroll_manager.set_is_hovering_minimap_thumb(
7628 !event.dragging()
7629 && layout
7630 .thumb_layout
7631 .thumb_bounds
7632 .is_some_and(|bounds| bounds.contains(&event.position)),
7633 cx,
7634 );
7635
7636 // Stop hover events from propagating to the
7637 // underlying editor if the minimap hitbox is hovered
7638 if !event.dragging() {
7639 cx.stop_propagation();
7640 }
7641 } else {
7642 editor.scroll_manager.hide_minimap_thumb(cx);
7643 }
7644 mouse_position = event.position;
7645 });
7646 }
7647 });
7648
7649 if dragging_minimap {
7650 window.on_mouse_event({
7651 let editor = self.editor.clone();
7652 move |event: &MouseUpEvent, phase, window, cx| {
7653 if phase == DispatchPhase::Capture {
7654 return;
7655 }
7656
7657 editor.update(cx, |editor, cx| {
7658 if minimap_hitbox.is_hovered(window) {
7659 editor.scroll_manager.set_is_hovering_minimap_thumb(
7660 layout
7661 .thumb_layout
7662 .thumb_bounds
7663 .is_some_and(|bounds| bounds.contains(&event.position)),
7664 cx,
7665 );
7666 } else {
7667 editor.scroll_manager.hide_minimap_thumb(cx);
7668 }
7669 cx.stop_propagation();
7670 });
7671 }
7672 });
7673 } else {
7674 window.on_mouse_event({
7675 let editor = self.editor.clone();
7676
7677 move |event: &MouseDownEvent, phase, window, cx| {
7678 if phase == DispatchPhase::Capture || !minimap_hitbox.is_hovered(window) {
7679 return;
7680 }
7681
7682 let event_position = event.position;
7683
7684 let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds else {
7685 return;
7686 };
7687
7688 editor.update(cx, |editor, cx| {
7689 if !thumb_bounds.contains(&event_position) {
7690 let click_position =
7691 event_position.relative_to(&minimap_hitbox.origin).y;
7692
7693 let top_position = (click_position
7694 - thumb_bounds.size.along(minimap_axis) / 2.0)
7695 .max(Pixels::ZERO);
7696
7697 let scroll_offset = (layout.minimap_scroll_top
7698 + ScrollPixelOffset::from(
7699 top_position / layout.minimap_line_height,
7700 ))
7701 .min(layout.max_scroll_top);
7702
7703 let scroll_position = editor
7704 .scroll_position(cx)
7705 .apply_along(minimap_axis, |_| scroll_offset);
7706 editor.set_scroll_position(scroll_position, window, cx);
7707 }
7708
7709 editor.scroll_manager.set_is_dragging_minimap(cx);
7710 cx.stop_propagation();
7711 });
7712 }
7713 });
7714 }
7715 }
7716 }
7717
7718 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7719 for mut block in layout.blocks.drain(..) {
7720 if block.overlaps_gutter {
7721 block.element.paint(window, cx);
7722 } else {
7723 let mut bounds = layout.hitbox.bounds;
7724 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
7725 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7726 block.element.paint(window, cx);
7727 })
7728 }
7729 }
7730 }
7731
7732 fn paint_edit_prediction_popover(
7733 &mut self,
7734 layout: &mut EditorLayout,
7735 window: &mut Window,
7736 cx: &mut App,
7737 ) {
7738 if let Some(edit_prediction_popover) = layout.edit_prediction_popover.as_mut() {
7739 edit_prediction_popover.paint(window, cx);
7740 }
7741 }
7742
7743 fn paint_mouse_context_menu(
7744 &mut self,
7745 layout: &mut EditorLayout,
7746 window: &mut Window,
7747 cx: &mut App,
7748 ) {
7749 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
7750 mouse_context_menu.paint(window, cx);
7751 }
7752 }
7753
7754 fn paint_scroll_wheel_listener(
7755 &mut self,
7756 layout: &EditorLayout,
7757 window: &mut Window,
7758 cx: &mut App,
7759 ) {
7760 window.on_mouse_event({
7761 let position_map = layout.position_map.clone();
7762 let editor = self.editor.clone();
7763 let hitbox = layout.hitbox.clone();
7764 let mut delta = ScrollDelta::default();
7765
7766 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
7767 // accidentally turn off their scrolling.
7768 let base_scroll_sensitivity =
7769 EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
7770
7771 // Use a minimum fast_scroll_sensitivity for same reason above
7772 let fast_scroll_sensitivity = EditorSettings::get_global(cx)
7773 .fast_scroll_sensitivity
7774 .max(0.01);
7775
7776 move |event: &ScrollWheelEvent, phase, window, cx| {
7777 let scroll_sensitivity = {
7778 if event.modifiers.alt {
7779 fast_scroll_sensitivity
7780 } else {
7781 base_scroll_sensitivity
7782 }
7783 };
7784
7785 if phase == DispatchPhase::Bubble && hitbox.should_handle_scroll(window) {
7786 delta = delta.coalesce(event.delta);
7787 editor.update(cx, |editor, cx| {
7788 let position_map: &PositionMap = &position_map;
7789
7790 let line_height = position_map.line_height;
7791 let max_glyph_advance = position_map.em_advance;
7792 let (delta, axis) = match delta {
7793 gpui::ScrollDelta::Pixels(mut pixels) => {
7794 //Trackpad
7795 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
7796 (pixels, axis)
7797 }
7798
7799 gpui::ScrollDelta::Lines(lines) => {
7800 //Not trackpad
7801 let pixels =
7802 point(lines.x * max_glyph_advance, lines.y * line_height);
7803 (pixels, None)
7804 }
7805 };
7806
7807 let current_scroll_position = position_map.snapshot.scroll_position();
7808 let x = (current_scroll_position.x
7809 * ScrollPixelOffset::from(max_glyph_advance)
7810 - ScrollPixelOffset::from(delta.x * scroll_sensitivity))
7811 / ScrollPixelOffset::from(max_glyph_advance);
7812 let y = (current_scroll_position.y * ScrollPixelOffset::from(line_height)
7813 - ScrollPixelOffset::from(delta.y * scroll_sensitivity))
7814 / ScrollPixelOffset::from(line_height);
7815 let mut scroll_position =
7816 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
7817 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
7818 if forbid_vertical_scroll {
7819 scroll_position.y = current_scroll_position.y;
7820 }
7821
7822 if scroll_position != current_scroll_position {
7823 editor.scroll(scroll_position, axis, window, cx);
7824 cx.stop_propagation();
7825 } else if y < 0. {
7826 // Due to clamping, we may fail to detect cases of overscroll to the top;
7827 // We want the scroll manager to get an update in such cases and detect the change of direction
7828 // on the next frame.
7829 cx.notify();
7830 }
7831 });
7832 }
7833 }
7834 });
7835 }
7836
7837 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
7838 if layout.mode.is_minimap() {
7839 return;
7840 }
7841
7842 self.paint_scroll_wheel_listener(layout, window, cx);
7843
7844 window.on_mouse_event({
7845 let position_map = layout.position_map.clone();
7846 let editor = self.editor.clone();
7847 let line_numbers = layout.line_numbers.clone();
7848
7849 move |event: &MouseDownEvent, phase, window, cx| {
7850 if phase == DispatchPhase::Bubble {
7851 match event.button {
7852 MouseButton::Left => editor.update(cx, |editor, cx| {
7853 let pending_mouse_down = editor
7854 .pending_mouse_down
7855 .get_or_insert_with(Default::default)
7856 .clone();
7857
7858 *pending_mouse_down.borrow_mut() = Some(event.clone());
7859
7860 Self::mouse_left_down(
7861 editor,
7862 event,
7863 &position_map,
7864 line_numbers.as_ref(),
7865 window,
7866 cx,
7867 );
7868 }),
7869 MouseButton::Right => editor.update(cx, |editor, cx| {
7870 Self::mouse_right_down(editor, event, &position_map, window, cx);
7871 }),
7872 MouseButton::Middle => editor.update(cx, |editor, cx| {
7873 Self::mouse_middle_down(editor, event, &position_map, window, cx);
7874 }),
7875 _ => {}
7876 };
7877 }
7878 }
7879 });
7880
7881 window.on_mouse_event({
7882 let editor = self.editor.clone();
7883 let position_map = layout.position_map.clone();
7884
7885 move |event: &MouseUpEvent, phase, window, cx| {
7886 if phase == DispatchPhase::Bubble {
7887 editor.update(cx, |editor, cx| {
7888 Self::mouse_up(editor, event, &position_map, window, cx)
7889 });
7890 }
7891 }
7892 });
7893
7894 window.on_mouse_event({
7895 let editor = self.editor.clone();
7896 let position_map = layout.position_map.clone();
7897 let mut captured_mouse_down = None;
7898
7899 move |event: &MouseUpEvent, phase, window, cx| match phase {
7900 // Clear the pending mouse down during the capture phase,
7901 // so that it happens even if another event handler stops
7902 // propagation.
7903 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
7904 let pending_mouse_down = editor
7905 .pending_mouse_down
7906 .get_or_insert_with(Default::default)
7907 .clone();
7908
7909 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
7910 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
7911 captured_mouse_down = pending_mouse_down.take();
7912 window.refresh();
7913 }
7914 }),
7915 // Fire click handlers during the bubble phase.
7916 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
7917 if let Some(mouse_down) = captured_mouse_down.take() {
7918 let event = ClickEvent::Mouse(MouseClickEvent {
7919 down: mouse_down,
7920 up: event.clone(),
7921 });
7922 Self::click(editor, &event, &position_map, window, cx);
7923 }
7924 }),
7925 }
7926 });
7927
7928 window.on_mouse_event({
7929 let position_map = layout.position_map.clone();
7930 let editor = self.editor.clone();
7931
7932 move |event: &MousePressureEvent, phase, window, cx| {
7933 if phase == DispatchPhase::Bubble {
7934 editor.update(cx, |editor, cx| {
7935 Self::pressure_click(editor, &event, &position_map, window, cx);
7936 })
7937 }
7938 }
7939 });
7940
7941 window.on_mouse_event({
7942 let position_map = layout.position_map.clone();
7943 let editor = self.editor.clone();
7944
7945 move |event: &MouseMoveEvent, phase, window, cx| {
7946 if phase == DispatchPhase::Bubble {
7947 editor.update(cx, |editor, cx| {
7948 if editor.hover_state.focused(window, cx) {
7949 return;
7950 }
7951 if event.pressed_button == Some(MouseButton::Left)
7952 || event.pressed_button == Some(MouseButton::Middle)
7953 {
7954 Self::mouse_dragged(editor, event, &position_map, window, cx)
7955 }
7956
7957 Self::mouse_moved(editor, event, &position_map, window, cx)
7958 });
7959 }
7960 }
7961 });
7962 }
7963
7964 fn shape_line_number(
7965 &self,
7966 text: SharedString,
7967 color: Hsla,
7968 window: &mut Window,
7969 ) -> ShapedLine {
7970 let run = TextRun {
7971 len: text.len(),
7972 font: self.style.text.font(),
7973 color,
7974 ..Default::default()
7975 };
7976 window.text_system().shape_line(
7977 text,
7978 self.style.text.font_size.to_pixels(window.rem_size()),
7979 &[run],
7980 None,
7981 )
7982 }
7983
7984 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
7985 let unstaged = status.has_secondary_hunk();
7986 let unstaged_hollow = matches!(
7987 ProjectSettings::get_global(cx).git.hunk_style,
7988 GitHunkStyleSetting::UnstagedHollow
7989 );
7990
7991 unstaged == unstaged_hollow
7992 }
7993
7994 #[cfg(debug_assertions)]
7995 fn layout_debug_ranges(
7996 selections: &mut Vec<(PlayerColor, Vec<SelectionLayout>)>,
7997 anchor_range: Range<Anchor>,
7998 display_snapshot: &DisplaySnapshot,
7999 cx: &App,
8000 ) {
8001 let theme = cx.theme();
8002 text::debug::GlobalDebugRanges::with_locked(|debug_ranges| {
8003 if debug_ranges.ranges.is_empty() {
8004 return;
8005 }
8006 let buffer_snapshot = &display_snapshot.buffer_snapshot();
8007 for (buffer, buffer_range, excerpt_id) in
8008 buffer_snapshot.range_to_buffer_ranges(anchor_range)
8009 {
8010 let buffer_range =
8011 buffer.anchor_after(buffer_range.start)..buffer.anchor_before(buffer_range.end);
8012 selections.extend(debug_ranges.ranges.iter().flat_map(|debug_range| {
8013 let player_color = theme
8014 .players()
8015 .color_for_participant(debug_range.occurrence_index as u32 + 1);
8016 debug_range.ranges.iter().filter_map(move |range| {
8017 if range.start.buffer_id != Some(buffer.remote_id()) {
8018 return None;
8019 }
8020 let clipped_start = range.start.max(&buffer_range.start, buffer);
8021 let clipped_end = range.end.min(&buffer_range.end, buffer);
8022 let range = buffer_snapshot
8023 .anchor_range_in_excerpt(excerpt_id, *clipped_start..*clipped_end)?;
8024 let start = range.start.to_display_point(display_snapshot);
8025 let end = range.end.to_display_point(display_snapshot);
8026 let selection_layout = SelectionLayout {
8027 head: start,
8028 range: start..end,
8029 cursor_shape: CursorShape::Bar,
8030 is_newest: false,
8031 is_local: false,
8032 active_rows: start.row()..end.row(),
8033 user_name: Some(SharedString::new(debug_range.value.clone())),
8034 };
8035 Some((player_color, vec![selection_layout]))
8036 })
8037 }));
8038 }
8039 });
8040 }
8041}
8042
8043pub fn render_breadcrumb_text(
8044 mut segments: Vec<BreadcrumbText>,
8045 prefix: Option<gpui::AnyElement>,
8046 active_item: &dyn ItemHandle,
8047 multibuffer_header: bool,
8048 window: &mut Window,
8049 cx: &App,
8050) -> impl IntoElement {
8051 const MAX_SEGMENTS: usize = 12;
8052
8053 let element = h_flex().flex_grow().text_ui(cx);
8054
8055 let prefix_end_ix = cmp::min(segments.len(), MAX_SEGMENTS / 2);
8056 let suffix_start_ix = cmp::max(
8057 prefix_end_ix,
8058 segments.len().saturating_sub(MAX_SEGMENTS / 2),
8059 );
8060
8061 if suffix_start_ix > prefix_end_ix {
8062 segments.splice(
8063 prefix_end_ix..suffix_start_ix,
8064 Some(BreadcrumbText {
8065 text: "β―".into(),
8066 highlights: None,
8067 font: None,
8068 }),
8069 );
8070 }
8071
8072 let highlighted_segments = segments.into_iter().enumerate().map(|(index, segment)| {
8073 let mut text_style = window.text_style();
8074 if let Some(ref font) = segment.font {
8075 text_style.font_family = font.family.clone();
8076 text_style.font_features = font.features.clone();
8077 text_style.font_style = font.style;
8078 text_style.font_weight = font.weight;
8079 }
8080 text_style.color = Color::Muted.color(cx);
8081
8082 if index == 0
8083 && !workspace::TabBarSettings::get_global(cx).show
8084 && active_item.is_dirty(cx)
8085 && let Some(styled_element) = apply_dirty_filename_style(&segment, &text_style, cx)
8086 {
8087 return styled_element;
8088 }
8089
8090 StyledText::new(segment.text.replace('\n', "β"))
8091 .with_default_highlights(&text_style, segment.highlights.unwrap_or_default())
8092 .into_any()
8093 });
8094
8095 let breadcrumbs = Itertools::intersperse_with(highlighted_segments, || {
8096 Label::new("βΊ").color(Color::Placeholder).into_any_element()
8097 });
8098
8099 let breadcrumbs_stack = h_flex()
8100 .gap_1()
8101 .when(multibuffer_header, |this| {
8102 this.pl_2()
8103 .border_l_1()
8104 .border_color(cx.theme().colors().border.opacity(0.6))
8105 })
8106 .children(breadcrumbs);
8107
8108 let breadcrumbs = if let Some(prefix) = prefix {
8109 h_flex().gap_1p5().child(prefix).child(breadcrumbs_stack)
8110 } else {
8111 breadcrumbs_stack
8112 };
8113
8114 let editor = active_item
8115 .downcast::<Editor>()
8116 .map(|editor| editor.downgrade());
8117
8118 let has_project_path = active_item.project_path(cx).is_some();
8119
8120 match editor {
8121 Some(editor) => element
8122 .id("breadcrumb_container")
8123 .when(!multibuffer_header, |this| this.overflow_x_scroll())
8124 .child(
8125 ButtonLike::new("toggle outline view")
8126 .child(breadcrumbs)
8127 .when(multibuffer_header, |this| {
8128 this.style(ButtonStyle::Transparent)
8129 })
8130 .when(!multibuffer_header, |this| {
8131 let focus_handle = editor.upgrade().unwrap().focus_handle(&cx);
8132
8133 this.tooltip(Tooltip::element(move |_window, cx| {
8134 v_flex()
8135 .gap_1()
8136 .child(
8137 h_flex()
8138 .gap_1()
8139 .justify_between()
8140 .child(Label::new("Show Symbol Outline"))
8141 .child(ui::KeyBinding::for_action_in(
8142 &zed_actions::outline::ToggleOutline,
8143 &focus_handle,
8144 cx,
8145 )),
8146 )
8147 .when(has_project_path, |this| {
8148 this.child(
8149 h_flex()
8150 .gap_1()
8151 .justify_between()
8152 .pt_1()
8153 .border_t_1()
8154 .border_color(cx.theme().colors().border_variant)
8155 .child(Label::new("Right-Click to Copy Path")),
8156 )
8157 })
8158 .into_any_element()
8159 }))
8160 .on_click({
8161 let editor = editor.clone();
8162 move |_, window, cx| {
8163 if let Some((editor, callback)) = editor
8164 .upgrade()
8165 .zip(zed_actions::outline::TOGGLE_OUTLINE.get())
8166 {
8167 callback(editor.to_any_view(), window, cx);
8168 }
8169 }
8170 })
8171 .when(has_project_path, |this| {
8172 this.on_right_click({
8173 let editor = editor.clone();
8174 move |_, _, cx| {
8175 if let Some(abs_path) = editor.upgrade().and_then(|editor| {
8176 editor.update(cx, |editor, cx| {
8177 editor.target_file_abs_path(cx)
8178 })
8179 }) {
8180 if let Some(path_str) = abs_path.to_str() {
8181 cx.write_to_clipboard(ClipboardItem::new_string(
8182 path_str.to_string(),
8183 ));
8184 }
8185 }
8186 }
8187 })
8188 })
8189 }),
8190 )
8191 .into_any_element(),
8192 None => element
8193 .h(rems_from_px(22.)) // Match the height and padding of the `ButtonLike` in the other arm.
8194 .pl_1()
8195 .child(breadcrumbs)
8196 .into_any_element(),
8197 }
8198}
8199
8200fn apply_dirty_filename_style(
8201 segment: &BreadcrumbText,
8202 text_style: &gpui::TextStyle,
8203 cx: &App,
8204) -> Option<gpui::AnyElement> {
8205 let text = segment.text.replace('\n', "β");
8206
8207 let filename_position = std::path::Path::new(&segment.text)
8208 .file_name()
8209 .and_then(|f| {
8210 let filename_str = f.to_string_lossy();
8211 segment.text.rfind(filename_str.as_ref())
8212 })?;
8213
8214 let bold_weight = FontWeight::BOLD;
8215 let default_color = Color::Default.color(cx);
8216
8217 if filename_position == 0 {
8218 let mut filename_style = text_style.clone();
8219 filename_style.font_weight = bold_weight;
8220 filename_style.color = default_color;
8221
8222 return Some(
8223 StyledText::new(text)
8224 .with_default_highlights(&filename_style, [])
8225 .into_any(),
8226 );
8227 }
8228
8229 let highlight_style = gpui::HighlightStyle {
8230 font_weight: Some(bold_weight),
8231 color: Some(default_color),
8232 ..Default::default()
8233 };
8234
8235 let highlight = vec![(filename_position..text.len(), highlight_style)];
8236 Some(
8237 StyledText::new(text)
8238 .with_default_highlights(text_style, highlight)
8239 .into_any(),
8240 )
8241}
8242
8243fn file_status_label_color(file_status: Option<FileStatus>) -> Color {
8244 file_status.map_or(Color::Default, |status| {
8245 if status.is_conflicted() {
8246 Color::Conflict
8247 } else if status.is_modified() {
8248 Color::Modified
8249 } else if status.is_deleted() {
8250 Color::Disabled
8251 } else if status.is_created() {
8252 Color::Created
8253 } else {
8254 Color::Default
8255 }
8256 })
8257}
8258
8259fn header_jump_data(
8260 editor_snapshot: &EditorSnapshot,
8261 block_row_start: DisplayRow,
8262 height: u32,
8263 first_excerpt: &ExcerptInfo,
8264 latest_selection_anchors: &HashMap<BufferId, Anchor>,
8265) -> JumpData {
8266 let jump_target = if let Some(anchor) = latest_selection_anchors.get(&first_excerpt.buffer_id)
8267 && let Some(range) = editor_snapshot.context_range_for_excerpt(anchor.excerpt_id)
8268 && let Some(buffer) = editor_snapshot
8269 .buffer_snapshot()
8270 .buffer_for_excerpt(anchor.excerpt_id)
8271 {
8272 JumpTargetInExcerptInput {
8273 id: anchor.excerpt_id,
8274 buffer,
8275 excerpt_start_anchor: range.start,
8276 jump_anchor: anchor.text_anchor,
8277 }
8278 } else {
8279 JumpTargetInExcerptInput {
8280 id: first_excerpt.id,
8281 buffer: &first_excerpt.buffer,
8282 excerpt_start_anchor: first_excerpt.range.context.start,
8283 jump_anchor: first_excerpt.range.primary.start,
8284 }
8285 };
8286 header_jump_data_inner(editor_snapshot, block_row_start, height, &jump_target)
8287}
8288
8289struct JumpTargetInExcerptInput<'a> {
8290 id: ExcerptId,
8291 buffer: &'a language::BufferSnapshot,
8292 excerpt_start_anchor: text::Anchor,
8293 jump_anchor: text::Anchor,
8294}
8295
8296fn header_jump_data_inner(
8297 snapshot: &EditorSnapshot,
8298 block_row_start: DisplayRow,
8299 height: u32,
8300 for_excerpt: &JumpTargetInExcerptInput,
8301) -> JumpData {
8302 let buffer = &for_excerpt.buffer;
8303 let jump_position = language::ToPoint::to_point(&for_excerpt.jump_anchor, buffer);
8304 let excerpt_start = for_excerpt.excerpt_start_anchor;
8305 let rows_from_excerpt_start = if for_excerpt.jump_anchor == excerpt_start {
8306 0
8307 } else {
8308 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
8309 jump_position.row.saturating_sub(excerpt_start_point.row)
8310 };
8311
8312 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
8313 .saturating_sub(
8314 snapshot
8315 .scroll_anchor
8316 .scroll_position(&snapshot.display_snapshot)
8317 .y as u32,
8318 );
8319
8320 JumpData::MultiBufferPoint {
8321 excerpt_id: for_excerpt.id,
8322 anchor: for_excerpt.jump_anchor,
8323 position: jump_position,
8324 line_offset_from_top,
8325 }
8326}
8327
8328pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
8329
8330impl AcceptEditPredictionBinding {
8331 pub fn keystroke(&self) -> Option<&KeybindingKeystroke> {
8332 if let Some(binding) = self.0.as_ref() {
8333 match &binding.keystrokes() {
8334 [keystroke, ..] => Some(keystroke),
8335 _ => None,
8336 }
8337 } else {
8338 None
8339 }
8340 }
8341}
8342
8343fn prepaint_gutter_button(
8344 mut button: AnyElement,
8345 row: DisplayRow,
8346 line_height: Pixels,
8347 gutter_dimensions: &GutterDimensions,
8348 scroll_position: gpui::Point<ScrollOffset>,
8349 gutter_hitbox: &Hitbox,
8350 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
8351 window: &mut Window,
8352 cx: &mut App,
8353) -> AnyElement {
8354 let available_space = size(
8355 AvailableSpace::MinContent,
8356 AvailableSpace::Definite(line_height),
8357 );
8358 let indicator_size = button.layout_as_root(available_space, window, cx);
8359
8360 let blame_width = gutter_dimensions.git_blame_entries_width;
8361 let gutter_width = display_hunks
8362 .binary_search_by(|(hunk, _)| match hunk {
8363 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
8364 DisplayDiffHunk::Unfolded {
8365 display_row_range, ..
8366 } => {
8367 if display_row_range.end <= row {
8368 Ordering::Less
8369 } else if display_row_range.start > row {
8370 Ordering::Greater
8371 } else {
8372 Ordering::Equal
8373 }
8374 }
8375 })
8376 .ok()
8377 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
8378 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
8379
8380 let x = left_offset;
8381
8382 let mut y =
8383 Pixels::from((row.as_f64() - scroll_position.y) * ScrollPixelOffset::from(line_height));
8384 y += (line_height - indicator_size.height) / 2.;
8385
8386 button.prepaint_as_root(
8387 gutter_hitbox.origin + point(x, y),
8388 available_space,
8389 window,
8390 cx,
8391 );
8392 button
8393}
8394
8395fn render_inline_blame_entry(
8396 blame_entry: BlameEntry,
8397 style: &EditorStyle,
8398 cx: &mut App,
8399) -> Option<AnyElement> {
8400 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
8401 renderer.render_inline_blame_entry(&style.text, blame_entry, cx)
8402}
8403
8404fn render_blame_entry_popover(
8405 blame_entry: BlameEntry,
8406 scroll_handle: ScrollHandle,
8407 commit_message: Option<ParsedCommitMessage>,
8408 markdown: Entity<Markdown>,
8409 workspace: WeakEntity<Workspace>,
8410 blame: &Entity<GitBlame>,
8411 buffer: BufferId,
8412 window: &mut Window,
8413 cx: &mut App,
8414) -> Option<AnyElement> {
8415 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
8416 let blame = blame.read(cx);
8417 let repository = blame.repository(cx, buffer)?;
8418 renderer.render_blame_entry_popover(
8419 blame_entry,
8420 scroll_handle,
8421 commit_message,
8422 markdown,
8423 repository,
8424 workspace,
8425 window,
8426 cx,
8427 )
8428}
8429
8430fn render_blame_entry(
8431 ix: usize,
8432 blame: &Entity<GitBlame>,
8433 blame_entry: BlameEntry,
8434 style: &EditorStyle,
8435 last_used_color: &mut Option<(Hsla, Oid)>,
8436 editor: Entity<Editor>,
8437 workspace: Entity<Workspace>,
8438 buffer: BufferId,
8439 renderer: &dyn BlameRenderer,
8440 window: &mut Window,
8441 cx: &mut App,
8442) -> Option<AnyElement> {
8443 let index: u32 = blame_entry.sha.into();
8444 let mut sha_color = cx.theme().players().color_for_participant(index).cursor;
8445
8446 // If the last color we used is the same as the one we get for this line, but
8447 // the commit SHAs are different, then we try again to get a different color.
8448 if let Some((color, sha)) = *last_used_color
8449 && sha != blame_entry.sha
8450 && color == sha_color
8451 {
8452 sha_color = cx.theme().players().color_for_participant(index + 1).cursor;
8453 }
8454 last_used_color.replace((sha_color, blame_entry.sha));
8455
8456 let blame = blame.read(cx);
8457 let details = blame.details_for_entry(buffer, &blame_entry);
8458 let repository = blame.repository(cx, buffer)?;
8459 renderer.render_blame_entry(
8460 &style.text,
8461 blame_entry,
8462 details,
8463 repository,
8464 workspace.downgrade(),
8465 editor,
8466 ix,
8467 sha_color,
8468 window,
8469 cx,
8470 )
8471}
8472
8473#[derive(Debug)]
8474pub(crate) struct LineWithInvisibles {
8475 fragments: SmallVec<[LineFragment; 1]>,
8476 invisibles: Vec<Invisible>,
8477 len: usize,
8478 pub(crate) width: Pixels,
8479 font_size: Pixels,
8480}
8481
8482enum LineFragment {
8483 Text(ShapedLine),
8484 Element {
8485 id: ChunkRendererId,
8486 element: Option<AnyElement>,
8487 size: Size<Pixels>,
8488 len: usize,
8489 },
8490}
8491
8492impl fmt::Debug for LineFragment {
8493 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
8494 match self {
8495 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
8496 LineFragment::Element { size, len, .. } => f
8497 .debug_struct("Element")
8498 .field("size", size)
8499 .field("len", len)
8500 .finish(),
8501 }
8502 }
8503}
8504
8505impl LineWithInvisibles {
8506 fn from_chunks<'a>(
8507 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
8508 editor_style: &EditorStyle,
8509 max_line_len: usize,
8510 max_line_count: usize,
8511 editor_mode: &EditorMode,
8512 text_width: Pixels,
8513 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8514 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
8515 window: &mut Window,
8516 cx: &mut App,
8517 ) -> Vec<Self> {
8518 let text_style = &editor_style.text;
8519 let mut layouts = Vec::with_capacity(max_line_count);
8520 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
8521 let mut line = String::new();
8522 let mut invisibles = Vec::new();
8523 let mut width = Pixels::ZERO;
8524 let mut len = 0;
8525 let mut styles = Vec::new();
8526 let mut non_whitespace_added = false;
8527 let mut row = 0;
8528 let mut line_exceeded_max_len = false;
8529 let font_size = text_style.font_size.to_pixels(window.rem_size());
8530 let min_contrast = EditorSettings::get_global(cx).minimum_contrast_for_highlights;
8531
8532 let ellipsis = SharedString::from("β―");
8533
8534 for highlighted_chunk in chunks.chain([HighlightedChunk {
8535 text: "\n",
8536 style: None,
8537 is_tab: false,
8538 is_inlay: false,
8539 replacement: None,
8540 }]) {
8541 if let Some(replacement) = highlighted_chunk.replacement {
8542 if !line.is_empty() {
8543 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8544 let text_runs: &[TextRun] = if segments.is_empty() {
8545 &styles
8546 } else {
8547 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8548 };
8549 let shaped_line = window.text_system().shape_line(
8550 line.clone().into(),
8551 font_size,
8552 text_runs,
8553 None,
8554 );
8555 width += shaped_line.width;
8556 len += shaped_line.len;
8557 fragments.push(LineFragment::Text(shaped_line));
8558 line.clear();
8559 styles.clear();
8560 }
8561
8562 match replacement {
8563 ChunkReplacement::Renderer(renderer) => {
8564 let available_width = if renderer.constrain_width {
8565 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
8566 ellipsis.clone()
8567 } else {
8568 SharedString::from(Arc::from(highlighted_chunk.text))
8569 };
8570 let shaped_line = window.text_system().shape_line(
8571 chunk,
8572 font_size,
8573 &[text_style.to_run(highlighted_chunk.text.len())],
8574 None,
8575 );
8576 AvailableSpace::Definite(shaped_line.width)
8577 } else {
8578 AvailableSpace::MinContent
8579 };
8580
8581 let mut element = (renderer.render)(&mut ChunkRendererContext {
8582 context: cx,
8583 window,
8584 max_width: text_width,
8585 });
8586 let line_height = text_style.line_height_in_pixels(window.rem_size());
8587 let size = element.layout_as_root(
8588 size(available_width, AvailableSpace::Definite(line_height)),
8589 window,
8590 cx,
8591 );
8592
8593 width += size.width;
8594 len += highlighted_chunk.text.len();
8595 fragments.push(LineFragment::Element {
8596 id: renderer.id,
8597 element: Some(element),
8598 size,
8599 len: highlighted_chunk.text.len(),
8600 });
8601 }
8602 ChunkReplacement::Str(x) => {
8603 let text_style = if let Some(style) = highlighted_chunk.style {
8604 Cow::Owned(text_style.clone().highlight(style))
8605 } else {
8606 Cow::Borrowed(text_style)
8607 };
8608
8609 let run = TextRun {
8610 len: x.len(),
8611 font: text_style.font(),
8612 color: text_style.color,
8613 background_color: text_style.background_color,
8614 underline: text_style.underline,
8615 strikethrough: text_style.strikethrough,
8616 };
8617 let line_layout = window
8618 .text_system()
8619 .shape_line(x, font_size, &[run], None)
8620 .with_len(highlighted_chunk.text.len());
8621
8622 width += line_layout.width;
8623 len += highlighted_chunk.text.len();
8624 fragments.push(LineFragment::Text(line_layout))
8625 }
8626 }
8627 } else {
8628 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
8629 if ix > 0 {
8630 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8631 let text_runs = if segments.is_empty() {
8632 &styles
8633 } else {
8634 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8635 };
8636 let shaped_line = window.text_system().shape_line(
8637 line.clone().into(),
8638 font_size,
8639 text_runs,
8640 None,
8641 );
8642 width += shaped_line.width;
8643 len += shaped_line.len;
8644 fragments.push(LineFragment::Text(shaped_line));
8645 layouts.push(Self {
8646 width: mem::take(&mut width),
8647 len: mem::take(&mut len),
8648 fragments: mem::take(&mut fragments),
8649 invisibles: std::mem::take(&mut invisibles),
8650 font_size,
8651 });
8652
8653 line.clear();
8654 styles.clear();
8655 row += 1;
8656 line_exceeded_max_len = false;
8657 non_whitespace_added = false;
8658 if row == max_line_count {
8659 return layouts;
8660 }
8661 }
8662
8663 if !line_chunk.is_empty() && !line_exceeded_max_len {
8664 let text_style = if let Some(style) = highlighted_chunk.style {
8665 Cow::Owned(text_style.clone().highlight(style))
8666 } else {
8667 Cow::Borrowed(text_style)
8668 };
8669
8670 if line.len() + line_chunk.len() > max_line_len {
8671 let mut chunk_len = max_line_len - line.len();
8672 while !line_chunk.is_char_boundary(chunk_len) {
8673 chunk_len -= 1;
8674 }
8675 line_chunk = &line_chunk[..chunk_len];
8676 line_exceeded_max_len = true;
8677 }
8678
8679 styles.push(TextRun {
8680 len: line_chunk.len(),
8681 font: text_style.font(),
8682 color: text_style.color,
8683 background_color: text_style.background_color,
8684 underline: text_style.underline,
8685 strikethrough: text_style.strikethrough,
8686 });
8687
8688 if editor_mode.is_full() && !highlighted_chunk.is_inlay {
8689 // Line wrap pads its contents with fake whitespaces,
8690 // avoid printing them
8691 let is_soft_wrapped = is_row_soft_wrapped(row);
8692 if highlighted_chunk.is_tab {
8693 if non_whitespace_added || !is_soft_wrapped {
8694 invisibles.push(Invisible::Tab {
8695 line_start_offset: line.len(),
8696 line_end_offset: line.len() + line_chunk.len(),
8697 });
8698 }
8699 } else {
8700 invisibles.extend(line_chunk.char_indices().filter_map(
8701 |(index, c)| {
8702 let is_whitespace = c.is_whitespace();
8703 non_whitespace_added |= !is_whitespace;
8704 if is_whitespace
8705 && (non_whitespace_added || !is_soft_wrapped)
8706 {
8707 Some(Invisible::Whitespace {
8708 line_offset: line.len() + index,
8709 })
8710 } else {
8711 None
8712 }
8713 },
8714 ))
8715 }
8716 }
8717
8718 line.push_str(line_chunk);
8719 }
8720 }
8721 }
8722 }
8723
8724 layouts
8725 }
8726
8727 /// Takes text runs and non-overlapping left-to-right background ranges with color.
8728 /// Returns new text runs with adjusted contrast as per background ranges.
8729 fn split_runs_by_bg_segments(
8730 text_runs: &[TextRun],
8731 bg_segments: &[(Range<DisplayPoint>, Hsla)],
8732 min_contrast: f32,
8733 start_col_offset: usize,
8734 ) -> Vec<TextRun> {
8735 let mut output_runs: Vec<TextRun> = Vec::with_capacity(text_runs.len());
8736 let mut line_col = start_col_offset;
8737 let mut segment_ix = 0usize;
8738
8739 for text_run in text_runs.iter() {
8740 let run_start_col = line_col;
8741 let run_end_col = run_start_col + text_run.len;
8742 while segment_ix < bg_segments.len()
8743 && (bg_segments[segment_ix].0.end.column() as usize) <= run_start_col
8744 {
8745 segment_ix += 1;
8746 }
8747 let mut cursor_col = run_start_col;
8748 let mut local_segment_ix = segment_ix;
8749 while local_segment_ix < bg_segments.len() {
8750 let (range, segment_color) = &bg_segments[local_segment_ix];
8751 let segment_start_col = range.start.column() as usize;
8752 let segment_end_col = range.end.column() as usize;
8753 if segment_start_col >= run_end_col {
8754 break;
8755 }
8756 if segment_start_col > cursor_col {
8757 let span_len = segment_start_col - cursor_col;
8758 output_runs.push(TextRun {
8759 len: span_len,
8760 font: text_run.font.clone(),
8761 color: text_run.color,
8762 background_color: text_run.background_color,
8763 underline: text_run.underline,
8764 strikethrough: text_run.strikethrough,
8765 });
8766 cursor_col = segment_start_col;
8767 }
8768 let segment_slice_end_col = segment_end_col.min(run_end_col);
8769 if segment_slice_end_col > cursor_col {
8770 let new_text_color =
8771 ensure_minimum_contrast(text_run.color, *segment_color, min_contrast);
8772 output_runs.push(TextRun {
8773 len: segment_slice_end_col - cursor_col,
8774 font: text_run.font.clone(),
8775 color: new_text_color,
8776 background_color: text_run.background_color,
8777 underline: text_run.underline,
8778 strikethrough: text_run.strikethrough,
8779 });
8780 cursor_col = segment_slice_end_col;
8781 }
8782 if segment_end_col >= run_end_col {
8783 break;
8784 }
8785 local_segment_ix += 1;
8786 }
8787 if cursor_col < run_end_col {
8788 output_runs.push(TextRun {
8789 len: run_end_col - cursor_col,
8790 font: text_run.font.clone(),
8791 color: text_run.color,
8792 background_color: text_run.background_color,
8793 underline: text_run.underline,
8794 strikethrough: text_run.strikethrough,
8795 });
8796 }
8797 line_col = run_end_col;
8798 segment_ix = local_segment_ix;
8799 }
8800 output_runs
8801 }
8802
8803 fn prepaint(
8804 &mut self,
8805 line_height: Pixels,
8806 scroll_position: gpui::Point<ScrollOffset>,
8807 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
8808 row: DisplayRow,
8809 content_origin: gpui::Point<Pixels>,
8810 line_elements: &mut SmallVec<[AnyElement; 1]>,
8811 window: &mut Window,
8812 cx: &mut App,
8813 ) {
8814 let line_y = f32::from(line_height) * Pixels::from(row.as_f64() - scroll_position.y);
8815 self.prepaint_with_custom_offset(
8816 line_height,
8817 scroll_pixel_position,
8818 content_origin,
8819 line_y,
8820 line_elements,
8821 window,
8822 cx,
8823 );
8824 }
8825
8826 fn prepaint_with_custom_offset(
8827 &mut self,
8828 line_height: Pixels,
8829 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
8830 content_origin: gpui::Point<Pixels>,
8831 line_y: Pixels,
8832 line_elements: &mut SmallVec<[AnyElement; 1]>,
8833 window: &mut Window,
8834 cx: &mut App,
8835 ) {
8836 let mut fragment_origin =
8837 content_origin + gpui::point(Pixels::from(-scroll_pixel_position.x), line_y);
8838 for fragment in &mut self.fragments {
8839 match fragment {
8840 LineFragment::Text(line) => {
8841 fragment_origin.x += line.width;
8842 }
8843 LineFragment::Element { element, size, .. } => {
8844 let mut element = element
8845 .take()
8846 .expect("you can't prepaint LineWithInvisibles twice");
8847
8848 // Center the element vertically within the line.
8849 let mut element_origin = fragment_origin;
8850 element_origin.y += (line_height - size.height) / 2.;
8851 element.prepaint_at(element_origin, window, cx);
8852 line_elements.push(element);
8853
8854 fragment_origin.x += size.width;
8855 }
8856 }
8857 }
8858 }
8859
8860 fn draw(
8861 &self,
8862 layout: &EditorLayout,
8863 row: DisplayRow,
8864 content_origin: gpui::Point<Pixels>,
8865 whitespace_setting: ShowWhitespaceSetting,
8866 selection_ranges: &[Range<DisplayPoint>],
8867 window: &mut Window,
8868 cx: &mut App,
8869 ) {
8870 self.draw_with_custom_offset(
8871 layout,
8872 row,
8873 content_origin,
8874 layout.position_map.line_height
8875 * (row.as_f64() - layout.position_map.scroll_position.y) as f32,
8876 whitespace_setting,
8877 selection_ranges,
8878 window,
8879 cx,
8880 );
8881 }
8882
8883 fn draw_with_custom_offset(
8884 &self,
8885 layout: &EditorLayout,
8886 row: DisplayRow,
8887 content_origin: gpui::Point<Pixels>,
8888 line_y: Pixels,
8889 whitespace_setting: ShowWhitespaceSetting,
8890 selection_ranges: &[Range<DisplayPoint>],
8891 window: &mut Window,
8892 cx: &mut App,
8893 ) {
8894 let line_height = layout.position_map.line_height;
8895 let mut fragment_origin = content_origin
8896 + gpui::point(
8897 Pixels::from(-layout.position_map.scroll_pixel_position.x),
8898 line_y,
8899 );
8900
8901 for fragment in &self.fragments {
8902 match fragment {
8903 LineFragment::Text(line) => {
8904 line.paint(
8905 fragment_origin,
8906 line_height,
8907 layout.text_align,
8908 Some(layout.content_width),
8909 window,
8910 cx,
8911 )
8912 .log_err();
8913 fragment_origin.x += line.width;
8914 }
8915 LineFragment::Element { size, .. } => {
8916 fragment_origin.x += size.width;
8917 }
8918 }
8919 }
8920
8921 self.draw_invisibles(
8922 selection_ranges,
8923 layout,
8924 content_origin,
8925 line_y,
8926 row,
8927 line_height,
8928 whitespace_setting,
8929 window,
8930 cx,
8931 );
8932 }
8933
8934 fn draw_background(
8935 &self,
8936 layout: &EditorLayout,
8937 row: DisplayRow,
8938 content_origin: gpui::Point<Pixels>,
8939 window: &mut Window,
8940 cx: &mut App,
8941 ) {
8942 let line_height = layout.position_map.line_height;
8943 let line_y = line_height * (row.as_f64() - layout.position_map.scroll_position.y) as f32;
8944
8945 let mut fragment_origin = content_origin
8946 + gpui::point(
8947 Pixels::from(-layout.position_map.scroll_pixel_position.x),
8948 line_y,
8949 );
8950
8951 for fragment in &self.fragments {
8952 match fragment {
8953 LineFragment::Text(line) => {
8954 line.paint_background(
8955 fragment_origin,
8956 line_height,
8957 layout.text_align,
8958 Some(layout.content_width),
8959 window,
8960 cx,
8961 )
8962 .log_err();
8963 fragment_origin.x += line.width;
8964 }
8965 LineFragment::Element { size, .. } => {
8966 fragment_origin.x += size.width;
8967 }
8968 }
8969 }
8970 }
8971
8972 fn draw_invisibles(
8973 &self,
8974 selection_ranges: &[Range<DisplayPoint>],
8975 layout: &EditorLayout,
8976 content_origin: gpui::Point<Pixels>,
8977 line_y: Pixels,
8978 row: DisplayRow,
8979 line_height: Pixels,
8980 whitespace_setting: ShowWhitespaceSetting,
8981 window: &mut Window,
8982 cx: &mut App,
8983 ) {
8984 let extract_whitespace_info = |invisible: &Invisible| {
8985 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
8986 Invisible::Tab {
8987 line_start_offset,
8988 line_end_offset,
8989 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
8990 Invisible::Whitespace { line_offset } => {
8991 (*line_offset, line_offset + 1, &layout.space_invisible)
8992 }
8993 };
8994
8995 let x_offset: ScrollPixelOffset = self.x_for_index(token_offset).into();
8996 let invisible_offset: ScrollPixelOffset =
8997 ((layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0)
8998 .into();
8999 let origin = content_origin
9000 + gpui::point(
9001 Pixels::from(
9002 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
9003 ),
9004 line_y,
9005 );
9006
9007 (
9008 [token_offset, token_end_offset],
9009 Box::new(move |window: &mut Window, cx: &mut App| {
9010 invisible_symbol
9011 .paint(origin, line_height, TextAlign::Left, None, window, cx)
9012 .log_err();
9013 }),
9014 )
9015 };
9016
9017 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
9018 match whitespace_setting {
9019 ShowWhitespaceSetting::None => (),
9020 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
9021 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
9022 let invisible_point = DisplayPoint::new(row, start as u32);
9023 if !selection_ranges
9024 .iter()
9025 .any(|region| region.start <= invisible_point && invisible_point < region.end)
9026 {
9027 return;
9028 }
9029
9030 paint(window, cx);
9031 }),
9032
9033 ShowWhitespaceSetting::Trailing => {
9034 let mut previous_start = self.len;
9035 for ([start, end], paint) in invisible_iter.rev() {
9036 if previous_start != end {
9037 break;
9038 }
9039 previous_start = start;
9040 paint(window, cx);
9041 }
9042 }
9043
9044 // For a whitespace to be on a boundary, any of the following conditions need to be met:
9045 // - It is a tab
9046 // - It is adjacent to an edge (start or end)
9047 // - It is adjacent to a whitespace (left or right)
9048 ShowWhitespaceSetting::Boundary => {
9049 // 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
9050 // the above cases.
9051 // Note: We zip in the original `invisibles` to check for tab equality
9052 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
9053 for (([start, end], paint), invisible) in
9054 invisible_iter.zip_eq(self.invisibles.iter())
9055 {
9056 let should_render = match (&last_seen, invisible) {
9057 (_, Invisible::Tab { .. }) => true,
9058 (Some((_, last_end, _)), _) => *last_end == start,
9059 _ => false,
9060 };
9061
9062 if should_render || start == 0 || end == self.len {
9063 paint(window, cx);
9064
9065 // Since we are scanning from the left, we will skip over the first available whitespace that is part
9066 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
9067 if let Some((should_render_last, last_end, paint_last)) = last_seen {
9068 // Note that we need to make sure that the last one is actually adjacent
9069 if !should_render_last && last_end == start {
9070 paint_last(window, cx);
9071 }
9072 }
9073 }
9074
9075 // Manually render anything within a selection
9076 let invisible_point = DisplayPoint::new(row, start as u32);
9077 if selection_ranges.iter().any(|region| {
9078 region.start <= invisible_point && invisible_point < region.end
9079 }) {
9080 paint(window, cx);
9081 }
9082
9083 last_seen = Some((should_render, end, paint));
9084 }
9085 }
9086 }
9087 }
9088
9089 pub fn x_for_index(&self, index: usize) -> Pixels {
9090 let mut fragment_start_x = Pixels::ZERO;
9091 let mut fragment_start_index = 0;
9092
9093 for fragment in &self.fragments {
9094 match fragment {
9095 LineFragment::Text(shaped_line) => {
9096 let fragment_end_index = fragment_start_index + shaped_line.len;
9097 if index < fragment_end_index {
9098 return fragment_start_x
9099 + shaped_line.x_for_index(index - fragment_start_index);
9100 }
9101 fragment_start_x += shaped_line.width;
9102 fragment_start_index = fragment_end_index;
9103 }
9104 LineFragment::Element { len, size, .. } => {
9105 let fragment_end_index = fragment_start_index + len;
9106 if index < fragment_end_index {
9107 return fragment_start_x;
9108 }
9109 fragment_start_x += size.width;
9110 fragment_start_index = fragment_end_index;
9111 }
9112 }
9113 }
9114
9115 fragment_start_x
9116 }
9117
9118 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
9119 let mut fragment_start_x = Pixels::ZERO;
9120 let mut fragment_start_index = 0;
9121
9122 for fragment in &self.fragments {
9123 match fragment {
9124 LineFragment::Text(shaped_line) => {
9125 let fragment_end_x = fragment_start_x + shaped_line.width;
9126 if x < fragment_end_x {
9127 return Some(
9128 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
9129 );
9130 }
9131 fragment_start_x = fragment_end_x;
9132 fragment_start_index += shaped_line.len;
9133 }
9134 LineFragment::Element { len, size, .. } => {
9135 let fragment_end_x = fragment_start_x + size.width;
9136 if x < fragment_end_x {
9137 return Some(fragment_start_index);
9138 }
9139 fragment_start_index += len;
9140 fragment_start_x = fragment_end_x;
9141 }
9142 }
9143 }
9144
9145 None
9146 }
9147
9148 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
9149 let mut fragment_start_index = 0;
9150
9151 for fragment in &self.fragments {
9152 match fragment {
9153 LineFragment::Text(shaped_line) => {
9154 let fragment_end_index = fragment_start_index + shaped_line.len;
9155 if index < fragment_end_index {
9156 return shaped_line.font_id_for_index(index - fragment_start_index);
9157 }
9158 fragment_start_index = fragment_end_index;
9159 }
9160 LineFragment::Element { len, .. } => {
9161 let fragment_end_index = fragment_start_index + len;
9162 if index < fragment_end_index {
9163 return None;
9164 }
9165 fragment_start_index = fragment_end_index;
9166 }
9167 }
9168 }
9169
9170 None
9171 }
9172
9173 pub fn alignment_offset(&self, text_align: TextAlign, content_width: Pixels) -> Pixels {
9174 let line_width = self.width;
9175 match text_align {
9176 TextAlign::Left => px(0.0),
9177 TextAlign::Center => (content_width - line_width) / 2.0,
9178 TextAlign::Right => content_width - line_width,
9179 }
9180 }
9181}
9182
9183#[derive(Debug, Clone, Copy, PartialEq, Eq)]
9184enum Invisible {
9185 /// A tab character
9186 ///
9187 /// A tab character is internally represented by spaces (configured by the user's tab width)
9188 /// aligned to the nearest column, so it's necessary to store the start and end offset for
9189 /// adjacency checks.
9190 Tab {
9191 line_start_offset: usize,
9192 line_end_offset: usize,
9193 },
9194 Whitespace {
9195 line_offset: usize,
9196 },
9197}
9198
9199impl EditorElement {
9200 /// Returns the rem size to use when rendering the [`EditorElement`].
9201 ///
9202 /// This allows UI elements to scale based on the `buffer_font_size`.
9203 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
9204 match self.editor.read(cx).mode {
9205 EditorMode::Full {
9206 scale_ui_elements_with_buffer_font_size: true,
9207 ..
9208 }
9209 | EditorMode::Minimap { .. } => {
9210 let buffer_font_size = self.style.text.font_size;
9211 match buffer_font_size {
9212 AbsoluteLength::Pixels(pixels) => {
9213 let rem_size_scale = {
9214 // Our default UI font size is 14px on a 16px base scale.
9215 // This means the default UI font size is 0.875rems.
9216 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
9217
9218 // We then determine the delta between a single rem and the default font
9219 // size scale.
9220 let default_font_size_delta = 1. - default_font_size_scale;
9221
9222 // Finally, we add this delta to 1rem to get the scale factor that
9223 // should be used to scale up the UI.
9224 1. + default_font_size_delta
9225 };
9226
9227 Some(pixels * rem_size_scale)
9228 }
9229 AbsoluteLength::Rems(rems) => {
9230 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
9231 }
9232 }
9233 }
9234 // We currently use single-line and auto-height editors in UI contexts,
9235 // so we don't want to scale everything with the buffer font size, as it
9236 // ends up looking off.
9237 _ => None,
9238 }
9239 }
9240
9241 fn editor_with_selections(&self, cx: &App) -> Option<Entity<Editor>> {
9242 if let EditorMode::Minimap { parent } = self.editor.read(cx).mode() {
9243 parent.upgrade()
9244 } else {
9245 Some(self.editor.clone())
9246 }
9247 }
9248}
9249
9250#[derive(Default)]
9251pub struct EditorRequestLayoutState {
9252 // We use prepaint depth to limit the number of times prepaint is
9253 // called recursively. We need this so that we can update stale
9254 // data for e.g. block heights in block map.
9255 prepaint_depth: Rc<Cell<usize>>,
9256}
9257
9258impl EditorRequestLayoutState {
9259 // In ideal conditions we only need one more subsequent prepaint call for resize to take effect.
9260 // i.e. MAX_PREPAINT_DEPTH = 2, but since moving blocks inline (place_near), more lines from
9261 // below get exposed, and we end up querying blocks for those lines too in subsequent renders.
9262 // Setting MAX_PREPAINT_DEPTH = 3, passes all tests. Just to be on the safe side we set it to 5, so
9263 // that subsequent shrinking does not lead to incorrect block placing.
9264 const MAX_PREPAINT_DEPTH: usize = 5;
9265
9266 fn increment_prepaint_depth(&self) -> EditorPrepaintGuard {
9267 let depth = self.prepaint_depth.get();
9268 self.prepaint_depth.set(depth + 1);
9269 EditorPrepaintGuard {
9270 prepaint_depth: self.prepaint_depth.clone(),
9271 }
9272 }
9273
9274 fn can_prepaint(&self) -> bool {
9275 self.prepaint_depth.get() < Self::MAX_PREPAINT_DEPTH
9276 }
9277}
9278
9279struct EditorPrepaintGuard {
9280 prepaint_depth: Rc<Cell<usize>>,
9281}
9282
9283impl Drop for EditorPrepaintGuard {
9284 fn drop(&mut self) {
9285 let depth = self.prepaint_depth.get();
9286 self.prepaint_depth.set(depth.saturating_sub(1));
9287 }
9288}
9289
9290impl Element for EditorElement {
9291 type RequestLayoutState = EditorRequestLayoutState;
9292 type PrepaintState = EditorLayout;
9293
9294 fn id(&self) -> Option<ElementId> {
9295 None
9296 }
9297
9298 fn source_location(&self) -> Option<&'static core::panic::Location<'static>> {
9299 None
9300 }
9301
9302 fn request_layout(
9303 &mut self,
9304 _: Option<&GlobalElementId>,
9305 _inspector_id: Option<&gpui::InspectorElementId>,
9306 window: &mut Window,
9307 cx: &mut App,
9308 ) -> (gpui::LayoutId, Self::RequestLayoutState) {
9309 let rem_size = self.rem_size(cx);
9310 window.with_rem_size(rem_size, |window| {
9311 self.editor.update(cx, |editor, cx| {
9312 editor.set_style(self.style.clone(), window, cx);
9313
9314 let layout_id = match editor.mode {
9315 EditorMode::SingleLine => {
9316 let rem_size = window.rem_size();
9317 let height = self.style.text.line_height_in_pixels(rem_size);
9318 let mut style = Style::default();
9319 style.size.height = height.into();
9320 style.size.width = relative(1.).into();
9321 window.request_layout(style, None, cx)
9322 }
9323 EditorMode::AutoHeight {
9324 min_lines,
9325 max_lines,
9326 } => {
9327 let editor_handle = cx.entity();
9328 window.request_measured_layout(
9329 Style::default(),
9330 move |known_dimensions, available_space, window, cx| {
9331 editor_handle
9332 .update(cx, |editor, cx| {
9333 compute_auto_height_layout(
9334 editor,
9335 min_lines,
9336 max_lines,
9337 known_dimensions,
9338 available_space.width,
9339 window,
9340 cx,
9341 )
9342 })
9343 .unwrap_or_default()
9344 },
9345 )
9346 }
9347 EditorMode::Minimap { .. } => {
9348 let mut style = Style::default();
9349 style.size.width = relative(1.).into();
9350 style.size.height = relative(1.).into();
9351 window.request_layout(style, None, cx)
9352 }
9353 EditorMode::Full {
9354 sizing_behavior, ..
9355 } => {
9356 let mut style = Style::default();
9357 style.size.width = relative(1.).into();
9358 if sizing_behavior == SizingBehavior::SizeByContent {
9359 let snapshot = editor.snapshot(window, cx);
9360 let line_height =
9361 self.style.text.line_height_in_pixels(window.rem_size());
9362 let scroll_height =
9363 (snapshot.max_point().row().next_row().0 as f32) * line_height;
9364 style.size.height = scroll_height.into();
9365 } else {
9366 style.size.height = relative(1.).into();
9367 }
9368 window.request_layout(style, None, cx)
9369 }
9370 };
9371
9372 (layout_id, EditorRequestLayoutState::default())
9373 })
9374 })
9375 }
9376
9377 fn prepaint(
9378 &mut self,
9379 _: Option<&GlobalElementId>,
9380 _inspector_id: Option<&gpui::InspectorElementId>,
9381 bounds: Bounds<Pixels>,
9382 request_layout: &mut Self::RequestLayoutState,
9383 window: &mut Window,
9384 cx: &mut App,
9385 ) -> Self::PrepaintState {
9386 let _prepaint_depth_guard = request_layout.increment_prepaint_depth();
9387 let text_style = TextStyleRefinement {
9388 font_size: Some(self.style.text.font_size),
9389 line_height: Some(self.style.text.line_height),
9390 ..Default::default()
9391 };
9392
9393 let is_minimap = self.editor.read(cx).mode.is_minimap();
9394 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
9395
9396 if !is_minimap {
9397 let focus_handle = self.editor.focus_handle(cx);
9398 window.set_view_id(self.editor.entity_id());
9399 window.set_focus_handle(&focus_handle, cx);
9400 }
9401
9402 let rem_size = self.rem_size(cx);
9403 window.with_rem_size(rem_size, |window| {
9404 window.with_text_style(Some(text_style), |window| {
9405 window.with_content_mask(Some(ContentMask { bounds }), |window| {
9406 let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| {
9407 (editor.snapshot(window, cx), editor.read_only(cx))
9408 });
9409 let style = &self.style;
9410
9411 let rem_size = window.rem_size();
9412 let font_id = window.text_system().resolve_font(&style.text.font());
9413 let font_size = style.text.font_size.to_pixels(rem_size);
9414 let line_height = style.text.line_height_in_pixels(rem_size);
9415 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
9416 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
9417 let glyph_grid_cell = size(em_advance, line_height);
9418
9419 let gutter_dimensions =
9420 snapshot.gutter_dimensions(font_id, font_size, style, window, cx);
9421 let text_width = bounds.size.width - gutter_dimensions.width;
9422
9423 let settings = EditorSettings::get_global(cx);
9424 let scrollbars_shown = settings.scrollbar.show != ShowScrollbar::Never;
9425 let vertical_scrollbar_width = (scrollbars_shown
9426 && settings.scrollbar.axes.vertical
9427 && self.editor.read(cx).show_scrollbars.vertical)
9428 .then_some(style.scrollbar_width)
9429 .unwrap_or_default();
9430 let minimap_width = self
9431 .get_minimap_width(
9432 &settings.minimap,
9433 scrollbars_shown,
9434 text_width,
9435 em_width,
9436 font_size,
9437 rem_size,
9438 cx,
9439 )
9440 .unwrap_or_default();
9441
9442 let right_margin = minimap_width + vertical_scrollbar_width;
9443
9444 let editor_width =
9445 text_width - gutter_dimensions.margin - 2 * em_width - right_margin;
9446 let editor_margins = EditorMargins {
9447 gutter: gutter_dimensions,
9448 right: right_margin,
9449 };
9450
9451 snapshot = self.editor.update(cx, |editor, cx| {
9452 editor.last_bounds = Some(bounds);
9453 editor.gutter_dimensions = gutter_dimensions;
9454 editor.set_visible_line_count(
9455 (bounds.size.height / line_height) as f64,
9456 window,
9457 cx,
9458 );
9459 editor.set_visible_column_count(f64::from(editor_width / em_advance));
9460
9461 if matches!(
9462 editor.mode,
9463 EditorMode::AutoHeight { .. } | EditorMode::Minimap { .. }
9464 ) {
9465 snapshot
9466 } else {
9467 let wrap_width_for = |column: u32| (column as f32 * em_advance).ceil();
9468 let wrap_width = match editor.soft_wrap_mode(cx) {
9469 SoftWrap::GitDiff => None,
9470 SoftWrap::None => Some(wrap_width_for(MAX_LINE_LEN as u32 / 2)),
9471 SoftWrap::EditorWidth => Some(editor_width),
9472 SoftWrap::Column(column) => Some(wrap_width_for(column)),
9473 SoftWrap::Bounded(column) => {
9474 Some(editor_width.min(wrap_width_for(column)))
9475 }
9476 };
9477
9478 if editor.set_wrap_width(wrap_width, cx) {
9479 editor.snapshot(window, cx)
9480 } else {
9481 snapshot
9482 }
9483 }
9484 });
9485
9486 let hitbox = window.insert_hitbox(bounds, HitboxBehavior::Normal);
9487 let gutter_hitbox = window.insert_hitbox(
9488 gutter_bounds(bounds, gutter_dimensions),
9489 HitboxBehavior::Normal,
9490 );
9491 let text_hitbox = window.insert_hitbox(
9492 Bounds {
9493 origin: gutter_hitbox.top_right(),
9494 size: size(text_width, bounds.size.height),
9495 },
9496 HitboxBehavior::Normal,
9497 );
9498
9499 // Offset the content_bounds from the text_bounds by the gutter margin (which
9500 // is roughly half a character wide) to make hit testing work more like how we want.
9501 let content_offset = point(editor_margins.gutter.margin, Pixels::ZERO);
9502 let content_origin = text_hitbox.origin + content_offset;
9503
9504 let height_in_lines = f64::from(bounds.size.height / line_height);
9505 let max_row = snapshot.max_point().row().as_f64();
9506
9507 // Calculate how much of the editor is clipped by parent containers (e.g., List).
9508 // This allows us to only render lines that are actually visible, which is
9509 // critical for performance when large AutoHeight editors are inside Lists.
9510 let visible_bounds = window.content_mask().bounds;
9511 let clipped_top = (visible_bounds.origin.y - bounds.origin.y).max(px(0.));
9512 let clipped_top_in_lines = f64::from(clipped_top / line_height);
9513 let visible_height_in_lines =
9514 f64::from(visible_bounds.size.height / line_height);
9515
9516 // The max scroll position for the top of the window
9517 let max_scroll_top = if matches!(
9518 snapshot.mode,
9519 EditorMode::SingleLine
9520 | EditorMode::AutoHeight { .. }
9521 | EditorMode::Full {
9522 sizing_behavior: SizingBehavior::ExcludeOverscrollMargin
9523 | SizingBehavior::SizeByContent,
9524 ..
9525 }
9526 ) {
9527 (max_row - height_in_lines + 1.).max(0.)
9528 } else {
9529 let settings = EditorSettings::get_global(cx);
9530 match settings.scroll_beyond_last_line {
9531 ScrollBeyondLastLine::OnePage => max_row,
9532 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
9533 ScrollBeyondLastLine::VerticalScrollMargin => {
9534 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
9535 .max(0.)
9536 }
9537 }
9538 };
9539
9540 let (
9541 autoscroll_request,
9542 autoscroll_containing_element,
9543 needs_horizontal_autoscroll,
9544 ) = self.editor.update(cx, |editor, cx| {
9545 let autoscroll_request = editor.scroll_manager.take_autoscroll_request();
9546
9547 let autoscroll_containing_element =
9548 autoscroll_request.is_some() || editor.has_pending_selection();
9549
9550 let (needs_horizontal_autoscroll, was_scrolled) = editor
9551 .autoscroll_vertically(
9552 bounds,
9553 line_height,
9554 max_scroll_top,
9555 autoscroll_request,
9556 window,
9557 cx,
9558 );
9559 if was_scrolled.0 {
9560 snapshot = editor.snapshot(window, cx);
9561 }
9562 (
9563 autoscroll_request,
9564 autoscroll_containing_element,
9565 needs_horizontal_autoscroll,
9566 )
9567 });
9568
9569 let mut scroll_position = snapshot.scroll_position();
9570 // The scroll position is a fractional point, the whole number of which represents
9571 // the top of the window in terms of display rows.
9572 // We add clipped_top_in_lines to skip rows that are clipped by parent containers,
9573 // but we don't modify scroll_position itself since the parent handles positioning.
9574 let max_row = snapshot.max_point().row();
9575 let start_row = cmp::min(
9576 DisplayRow((scroll_position.y + clipped_top_in_lines).floor() as u32),
9577 max_row,
9578 );
9579 let end_row = cmp::min(
9580 (scroll_position.y + clipped_top_in_lines + visible_height_in_lines).ceil()
9581 as u32,
9582 max_row.next_row().0,
9583 );
9584 let end_row = DisplayRow(end_row);
9585
9586 let row_infos = snapshot // note we only get the visual range
9587 .row_infos(start_row)
9588 .take((start_row..end_row).len())
9589 .collect::<Vec<RowInfo>>();
9590 let is_row_soft_wrapped = |row: usize| {
9591 row_infos
9592 .get(row)
9593 .is_none_or(|info| info.buffer_row.is_none())
9594 };
9595
9596 let start_anchor = if start_row == Default::default() {
9597 Anchor::min()
9598 } else {
9599 snapshot.buffer_snapshot().anchor_before(
9600 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
9601 )
9602 };
9603 let end_anchor = if end_row > max_row {
9604 Anchor::max()
9605 } else {
9606 snapshot.buffer_snapshot().anchor_before(
9607 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
9608 )
9609 };
9610
9611 let mut highlighted_rows = self
9612 .editor
9613 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
9614
9615 let is_light = cx.theme().appearance().is_light();
9616
9617 let mut highlighted_ranges = self
9618 .editor_with_selections(cx)
9619 .map(|editor| {
9620 editor.read(cx).background_highlights_in_range(
9621 start_anchor..end_anchor,
9622 &snapshot.display_snapshot,
9623 cx.theme(),
9624 )
9625 })
9626 .unwrap_or_default();
9627
9628 for (ix, row_info) in row_infos.iter().enumerate() {
9629 let Some(diff_status) = row_info.diff_status else {
9630 continue;
9631 };
9632
9633 let background_color = match diff_status.kind {
9634 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
9635 DiffHunkStatusKind::Deleted => {
9636 cx.theme().colors().version_control_deleted
9637 }
9638 DiffHunkStatusKind::Modified => {
9639 debug_panic!("modified diff status for row info");
9640 continue;
9641 }
9642 };
9643
9644 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
9645
9646 let hollow_highlight = LineHighlight {
9647 background: (background_color.opacity(if is_light {
9648 0.08
9649 } else {
9650 0.06
9651 }))
9652 .into(),
9653 border: Some(if is_light {
9654 background_color.opacity(0.48)
9655 } else {
9656 background_color.opacity(0.36)
9657 }),
9658 include_gutter: true,
9659 type_id: None,
9660 };
9661
9662 let filled_highlight = LineHighlight {
9663 background: solid_background(background_color.opacity(hunk_opacity)),
9664 border: None,
9665 include_gutter: true,
9666 type_id: None,
9667 };
9668
9669 let background = if Self::diff_hunk_hollow(diff_status, cx) {
9670 hollow_highlight
9671 } else {
9672 filled_highlight
9673 };
9674
9675 let base_display_point =
9676 DisplayPoint::new(start_row + DisplayRow(ix as u32), 0);
9677
9678 highlighted_rows
9679 .entry(base_display_point.row())
9680 .or_insert(background);
9681 }
9682
9683 let highlighted_gutter_ranges =
9684 self.editor.read(cx).gutter_highlights_in_range(
9685 start_anchor..end_anchor,
9686 &snapshot.display_snapshot,
9687 cx,
9688 );
9689
9690 let document_colors = self
9691 .editor
9692 .read(cx)
9693 .colors
9694 .as_ref()
9695 .map(|colors| colors.editor_display_highlights(&snapshot));
9696 let redacted_ranges = self.editor.read(cx).redacted_ranges(
9697 start_anchor..end_anchor,
9698 &snapshot.display_snapshot,
9699 cx,
9700 );
9701
9702 let (local_selections, selected_buffer_ids, latest_selection_anchors): (
9703 Vec<Selection<Point>>,
9704 Vec<BufferId>,
9705 HashMap<BufferId, Anchor>,
9706 ) = self
9707 .editor_with_selections(cx)
9708 .map(|editor| {
9709 editor.update(cx, |editor, cx| {
9710 let all_selections =
9711 editor.selections.all::<Point>(&snapshot.display_snapshot);
9712 let all_anchor_selections =
9713 editor.selections.all_anchors(&snapshot.display_snapshot);
9714 let selected_buffer_ids =
9715 if editor.buffer_kind(cx) == ItemBufferKind::Singleton {
9716 Vec::new()
9717 } else {
9718 let mut selected_buffer_ids =
9719 Vec::with_capacity(all_selections.len());
9720
9721 for selection in all_selections {
9722 for buffer_id in snapshot
9723 .buffer_snapshot()
9724 .buffer_ids_for_range(selection.range())
9725 {
9726 if selected_buffer_ids.last() != Some(&buffer_id) {
9727 selected_buffer_ids.push(buffer_id);
9728 }
9729 }
9730 }
9731
9732 selected_buffer_ids
9733 };
9734
9735 let mut selections = editor.selections.disjoint_in_range(
9736 start_anchor..end_anchor,
9737 &snapshot.display_snapshot,
9738 );
9739 selections
9740 .extend(editor.selections.pending(&snapshot.display_snapshot));
9741
9742 let mut anchors_by_buffer: HashMap<BufferId, (usize, Anchor)> =
9743 HashMap::default();
9744 for selection in all_anchor_selections.iter() {
9745 let head = selection.head();
9746 if let Some(buffer_id) = head.text_anchor.buffer_id {
9747 anchors_by_buffer
9748 .entry(buffer_id)
9749 .and_modify(|(latest_id, latest_anchor)| {
9750 if selection.id > *latest_id {
9751 *latest_id = selection.id;
9752 *latest_anchor = head;
9753 }
9754 })
9755 .or_insert((selection.id, head));
9756 }
9757 }
9758 let latest_selection_anchors = anchors_by_buffer
9759 .into_iter()
9760 .map(|(buffer_id, (_, anchor))| (buffer_id, anchor))
9761 .collect();
9762
9763 (selections, selected_buffer_ids, latest_selection_anchors)
9764 })
9765 })
9766 .unwrap_or_else(|| (Vec::new(), Vec::new(), HashMap::default()));
9767
9768 let (selections, mut active_rows, newest_selection_head) = self
9769 .layout_selections(
9770 start_anchor,
9771 end_anchor,
9772 &local_selections,
9773 &snapshot,
9774 start_row,
9775 end_row,
9776 window,
9777 cx,
9778 );
9779
9780 // relative rows are based on newest selection, even outside the visible area
9781 let relative_row_base = self.editor.update(cx, |editor, cx| {
9782 (editor.selections.count() != 0).then(|| {
9783 let newest = editor
9784 .selections
9785 .newest::<Point>(&editor.display_snapshot(cx));
9786
9787 SelectionLayout::new(
9788 newest,
9789 editor.selections.line_mode(),
9790 editor.cursor_offset_on_selection,
9791 editor.cursor_shape,
9792 &snapshot,
9793 true,
9794 true,
9795 None,
9796 )
9797 .head
9798 .row()
9799 })
9800 });
9801
9802 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
9803 editor.active_breakpoints(start_row..end_row, window, cx)
9804 });
9805 for (display_row, (_, bp, state)) in &breakpoint_rows {
9806 if bp.is_enabled() && state.is_none_or(|s| s.verified) {
9807 active_rows.entry(*display_row).or_default().breakpoint = true;
9808 }
9809 }
9810
9811 let line_numbers = self.layout_line_numbers(
9812 Some(&gutter_hitbox),
9813 gutter_dimensions,
9814 line_height,
9815 scroll_position,
9816 start_row..end_row,
9817 &row_infos,
9818 &active_rows,
9819 relative_row_base,
9820 &snapshot,
9821 window,
9822 cx,
9823 );
9824
9825 // We add the gutter breakpoint indicator to breakpoint_rows after painting
9826 // line numbers so we don't paint a line number debug accent color if a user
9827 // has their mouse over that line when a breakpoint isn't there
9828 self.editor.update(cx, |editor, _| {
9829 if let Some(phantom_breakpoint) = &mut editor
9830 .gutter_breakpoint_indicator
9831 .0
9832 .filter(|phantom_breakpoint| phantom_breakpoint.is_active)
9833 {
9834 // Is there a non-phantom breakpoint on this line?
9835 phantom_breakpoint.collides_with_existing_breakpoint = true;
9836 breakpoint_rows
9837 .entry(phantom_breakpoint.display_row)
9838 .or_insert_with(|| {
9839 let position = snapshot.display_point_to_anchor(
9840 DisplayPoint::new(phantom_breakpoint.display_row, 0),
9841 Bias::Right,
9842 );
9843 let breakpoint = Breakpoint::new_standard();
9844 phantom_breakpoint.collides_with_existing_breakpoint = false;
9845 (position, breakpoint, None)
9846 });
9847 }
9848 });
9849
9850 let mut expand_toggles =
9851 window.with_element_namespace("expand_toggles", |window| {
9852 self.layout_expand_toggles(
9853 &gutter_hitbox,
9854 gutter_dimensions,
9855 em_width,
9856 line_height,
9857 scroll_position,
9858 &row_infos,
9859 window,
9860 cx,
9861 )
9862 });
9863
9864 let mut crease_toggles =
9865 window.with_element_namespace("crease_toggles", |window| {
9866 self.layout_crease_toggles(
9867 start_row..end_row,
9868 &row_infos,
9869 &active_rows,
9870 &snapshot,
9871 window,
9872 cx,
9873 )
9874 });
9875 let crease_trailers =
9876 window.with_element_namespace("crease_trailers", |window| {
9877 self.layout_crease_trailers(
9878 row_infos.iter().cloned(),
9879 &snapshot,
9880 window,
9881 cx,
9882 )
9883 });
9884
9885 let display_hunks = self.layout_gutter_diff_hunks(
9886 line_height,
9887 &gutter_hitbox,
9888 start_row..end_row,
9889 &snapshot,
9890 window,
9891 cx,
9892 );
9893
9894 Self::layout_word_diff_highlights(
9895 &display_hunks,
9896 &row_infos,
9897 start_row,
9898 &snapshot,
9899 &mut highlighted_ranges,
9900 cx,
9901 );
9902
9903 let merged_highlighted_ranges =
9904 if let Some((_, colors)) = document_colors.as_ref() {
9905 &highlighted_ranges
9906 .clone()
9907 .into_iter()
9908 .chain(colors.clone())
9909 .collect()
9910 } else {
9911 &highlighted_ranges
9912 };
9913 let bg_segments_per_row = Self::bg_segments_per_row(
9914 start_row..end_row,
9915 &selections,
9916 &merged_highlighted_ranges,
9917 self.style.background,
9918 );
9919
9920 let mut line_layouts = Self::layout_lines(
9921 start_row..end_row,
9922 &snapshot,
9923 &self.style,
9924 editor_width,
9925 is_row_soft_wrapped,
9926 &bg_segments_per_row,
9927 window,
9928 cx,
9929 );
9930 let new_renderer_widths = (!is_minimap).then(|| {
9931 line_layouts
9932 .iter()
9933 .flat_map(|layout| &layout.fragments)
9934 .filter_map(|fragment| {
9935 if let LineFragment::Element { id, size, .. } = fragment {
9936 Some((*id, size.width))
9937 } else {
9938 None
9939 }
9940 })
9941 });
9942 if new_renderer_widths.is_some_and(|new_renderer_widths| {
9943 self.editor.update(cx, |editor, cx| {
9944 editor.update_renderer_widths(new_renderer_widths, cx)
9945 })
9946 }) {
9947 // If the fold widths have changed, we need to prepaint
9948 // the element again to account for any changes in
9949 // wrapping.
9950 if request_layout.can_prepaint() {
9951 return self.prepaint(
9952 None,
9953 _inspector_id,
9954 bounds,
9955 request_layout,
9956 window,
9957 cx,
9958 );
9959 } else {
9960 debug_panic!(concat!(
9961 "skipping recursive prepaint at max depth. ",
9962 "renderer widths may be stale."
9963 ));
9964 }
9965 }
9966
9967 let longest_line_blame_width = self
9968 .editor
9969 .update(cx, |editor, cx| {
9970 if !editor.show_git_blame_inline {
9971 return None;
9972 }
9973 let blame = editor.blame.as_ref()?;
9974 let (_, blame_entry) = blame
9975 .update(cx, |blame, cx| {
9976 let row_infos =
9977 snapshot.row_infos(snapshot.longest_row()).next()?;
9978 blame.blame_for_rows(&[row_infos], cx).next()
9979 })
9980 .flatten()?;
9981 let mut element = render_inline_blame_entry(blame_entry, style, cx)?;
9982 let inline_blame_padding =
9983 ProjectSettings::get_global(cx).git.inline_blame.padding as f32
9984 * em_advance;
9985 Some(
9986 element
9987 .layout_as_root(AvailableSpace::min_size(), window, cx)
9988 .width
9989 + inline_blame_padding,
9990 )
9991 })
9992 .unwrap_or(Pixels::ZERO);
9993
9994 let longest_line_width = layout_line(
9995 snapshot.longest_row(),
9996 &snapshot,
9997 style,
9998 editor_width,
9999 is_row_soft_wrapped,
10000 window,
10001 cx,
10002 )
10003 .width;
10004
10005 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
10006 text_hitbox.bounds,
10007 glyph_grid_cell,
10008 size(
10009 longest_line_width,
10010 Pixels::from(max_row.as_f64() * f64::from(line_height)),
10011 ),
10012 longest_line_blame_width,
10013 EditorSettings::get_global(cx),
10014 );
10015
10016 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
10017
10018 let sticky_header_excerpt = if snapshot.buffer_snapshot().show_headers() {
10019 snapshot.sticky_header_excerpt(scroll_position.y)
10020 } else {
10021 None
10022 };
10023 let sticky_header_excerpt_id =
10024 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
10025
10026 let blocks = (!is_minimap)
10027 .then(|| {
10028 window.with_element_namespace("blocks", |window| {
10029 self.render_blocks(
10030 start_row..end_row,
10031 &snapshot,
10032 &hitbox,
10033 &text_hitbox,
10034 editor_width,
10035 &mut scroll_width,
10036 &editor_margins,
10037 em_width,
10038 gutter_dimensions.full_width(),
10039 line_height,
10040 &mut line_layouts,
10041 &local_selections,
10042 &selected_buffer_ids,
10043 &latest_selection_anchors,
10044 is_row_soft_wrapped,
10045 sticky_header_excerpt_id,
10046 window,
10047 cx,
10048 )
10049 })
10050 })
10051 .unwrap_or_default();
10052 let RenderBlocksOutput {
10053 mut blocks,
10054 row_block_types,
10055 resized_blocks,
10056 } = blocks;
10057 if let Some(resized_blocks) = resized_blocks {
10058 self.editor.update(cx, |editor, cx| {
10059 editor.resize_blocks(
10060 resized_blocks,
10061 autoscroll_request.map(|(autoscroll, _)| autoscroll),
10062 cx,
10063 )
10064 });
10065 if request_layout.can_prepaint() {
10066 return self.prepaint(
10067 None,
10068 _inspector_id,
10069 bounds,
10070 request_layout,
10071 window,
10072 cx,
10073 );
10074 } else {
10075 debug_panic!(concat!(
10076 "skipping recursive prepaint at max depth. ",
10077 "block layout may be stale."
10078 ));
10079 }
10080 }
10081
10082 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
10083 window.with_element_namespace("blocks", |window| {
10084 self.layout_sticky_buffer_header(
10085 sticky_header_excerpt,
10086 scroll_position,
10087 line_height,
10088 right_margin,
10089 &snapshot,
10090 &hitbox,
10091 &selected_buffer_ids,
10092 &blocks,
10093 &latest_selection_anchors,
10094 window,
10095 cx,
10096 )
10097 })
10098 });
10099
10100 let start_buffer_row =
10101 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot()).row);
10102 let end_buffer_row =
10103 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot()).row);
10104
10105 let scroll_max: gpui::Point<ScrollPixelOffset> = point(
10106 ScrollPixelOffset::from(
10107 ((scroll_width - editor_width) / em_advance).max(0.0),
10108 ),
10109 max_scroll_top,
10110 );
10111
10112 self.editor.update(cx, |editor, cx| {
10113 if editor.scroll_manager.clamp_scroll_left(scroll_max.x) {
10114 scroll_position.x = scroll_position.x.min(scroll_max.x);
10115 }
10116
10117 if needs_horizontal_autoscroll.0
10118 && let Some(new_scroll_position) = editor.autoscroll_horizontally(
10119 start_row,
10120 editor_width,
10121 scroll_width,
10122 em_advance,
10123 &line_layouts,
10124 autoscroll_request,
10125 window,
10126 cx,
10127 )
10128 {
10129 scroll_position = new_scroll_position;
10130 }
10131 });
10132
10133 let scroll_pixel_position = point(
10134 scroll_position.x * f64::from(em_advance),
10135 scroll_position.y * f64::from(line_height),
10136 );
10137 let sticky_headers = if !is_minimap
10138 && is_singleton
10139 && EditorSettings::get_global(cx).sticky_scroll.enabled
10140 {
10141 let relative = self.editor.read(cx).relative_line_numbers(cx);
10142 self.layout_sticky_headers(
10143 &snapshot,
10144 editor_width,
10145 is_row_soft_wrapped,
10146 line_height,
10147 scroll_pixel_position,
10148 content_origin,
10149 &gutter_dimensions,
10150 &gutter_hitbox,
10151 &text_hitbox,
10152 &style,
10153 relative,
10154 relative_row_base,
10155 window,
10156 cx,
10157 )
10158 } else {
10159 None
10160 };
10161 let indent_guides = self.layout_indent_guides(
10162 content_origin,
10163 text_hitbox.origin,
10164 start_buffer_row..end_buffer_row,
10165 scroll_pixel_position,
10166 line_height,
10167 &snapshot,
10168 window,
10169 cx,
10170 );
10171
10172 let crease_trailers =
10173 window.with_element_namespace("crease_trailers", |window| {
10174 self.prepaint_crease_trailers(
10175 crease_trailers,
10176 &line_layouts,
10177 line_height,
10178 content_origin,
10179 scroll_pixel_position,
10180 em_width,
10181 window,
10182 cx,
10183 )
10184 });
10185
10186 let (edit_prediction_popover, edit_prediction_popover_origin) = self
10187 .editor
10188 .update(cx, |editor, cx| {
10189 editor.render_edit_prediction_popover(
10190 &text_hitbox.bounds,
10191 content_origin,
10192 right_margin,
10193 &snapshot,
10194 start_row..end_row,
10195 scroll_position.y,
10196 scroll_position.y + height_in_lines,
10197 &line_layouts,
10198 line_height,
10199 scroll_position,
10200 scroll_pixel_position,
10201 newest_selection_head,
10202 editor_width,
10203 style,
10204 window,
10205 cx,
10206 )
10207 })
10208 .unzip();
10209
10210 let mut inline_diagnostics = self.layout_inline_diagnostics(
10211 &line_layouts,
10212 &crease_trailers,
10213 &row_block_types,
10214 content_origin,
10215 scroll_position,
10216 scroll_pixel_position,
10217 edit_prediction_popover_origin,
10218 start_row,
10219 end_row,
10220 line_height,
10221 em_width,
10222 style,
10223 window,
10224 cx,
10225 );
10226
10227 let mut inline_blame_layout = None;
10228 let mut inline_code_actions = None;
10229 if let Some(newest_selection_head) = newest_selection_head {
10230 let display_row = newest_selection_head.row();
10231 if (start_row..end_row).contains(&display_row)
10232 && !row_block_types.contains_key(&display_row)
10233 {
10234 inline_code_actions = self.layout_inline_code_actions(
10235 newest_selection_head,
10236 content_origin,
10237 scroll_position,
10238 scroll_pixel_position,
10239 line_height,
10240 &snapshot,
10241 window,
10242 cx,
10243 );
10244
10245 let line_ix = display_row.minus(start_row) as usize;
10246 if let (Some(row_info), Some(line_layout), Some(crease_trailer)) = (
10247 row_infos.get(line_ix),
10248 line_layouts.get(line_ix),
10249 crease_trailers.get(line_ix),
10250 ) {
10251 let crease_trailer_layout = crease_trailer.as_ref();
10252 if let Some(layout) = self.layout_inline_blame(
10253 display_row,
10254 row_info,
10255 line_layout,
10256 crease_trailer_layout,
10257 em_width,
10258 content_origin,
10259 scroll_position,
10260 scroll_pixel_position,
10261 line_height,
10262 window,
10263 cx,
10264 ) {
10265 inline_blame_layout = Some(layout);
10266 // Blame overrides inline diagnostics
10267 inline_diagnostics.remove(&display_row);
10268 }
10269 } else {
10270 log::error!(
10271 "bug: line_ix {} is out of bounds - row_infos.len(): {}, \
10272 line_layouts.len(): {}, \
10273 crease_trailers.len(): {}",
10274 line_ix,
10275 row_infos.len(),
10276 line_layouts.len(),
10277 crease_trailers.len(),
10278 );
10279 }
10280 }
10281 }
10282
10283 let blamed_display_rows = self.layout_blame_entries(
10284 &row_infos,
10285 em_width,
10286 scroll_position,
10287 line_height,
10288 &gutter_hitbox,
10289 gutter_dimensions.git_blame_entries_width,
10290 window,
10291 cx,
10292 );
10293
10294 let line_elements = self.prepaint_lines(
10295 start_row,
10296 &mut line_layouts,
10297 line_height,
10298 scroll_position,
10299 scroll_pixel_position,
10300 content_origin,
10301 window,
10302 cx,
10303 );
10304
10305 window.with_element_namespace("blocks", |window| {
10306 self.layout_blocks(
10307 &mut blocks,
10308 &hitbox,
10309 line_height,
10310 scroll_position,
10311 scroll_pixel_position,
10312 window,
10313 cx,
10314 );
10315 });
10316
10317 let cursors = self.collect_cursors(&snapshot, cx);
10318 let visible_row_range = start_row..end_row;
10319 let non_visible_cursors = cursors
10320 .iter()
10321 .any(|c| !visible_row_range.contains(&c.0.row()));
10322
10323 let visible_cursors = self.layout_visible_cursors(
10324 &snapshot,
10325 &selections,
10326 &row_block_types,
10327 start_row..end_row,
10328 &line_layouts,
10329 &text_hitbox,
10330 content_origin,
10331 scroll_position,
10332 scroll_pixel_position,
10333 line_height,
10334 em_width,
10335 em_advance,
10336 autoscroll_containing_element,
10337 window,
10338 cx,
10339 );
10340
10341 let scrollbars_layout = self.layout_scrollbars(
10342 &snapshot,
10343 &scrollbar_layout_information,
10344 content_offset,
10345 scroll_position,
10346 non_visible_cursors,
10347 right_margin,
10348 editor_width,
10349 window,
10350 cx,
10351 );
10352
10353 let gutter_settings = EditorSettings::get_global(cx).gutter;
10354
10355 let context_menu_layout =
10356 if let Some(newest_selection_head) = newest_selection_head {
10357 let newest_selection_point =
10358 newest_selection_head.to_point(&snapshot.display_snapshot);
10359 if (start_row..end_row).contains(&newest_selection_head.row()) {
10360 self.layout_cursor_popovers(
10361 line_height,
10362 &text_hitbox,
10363 content_origin,
10364 right_margin,
10365 start_row,
10366 scroll_pixel_position,
10367 &line_layouts,
10368 newest_selection_head,
10369 newest_selection_point,
10370 style,
10371 window,
10372 cx,
10373 )
10374 } else {
10375 None
10376 }
10377 } else {
10378 None
10379 };
10380
10381 self.layout_gutter_menu(
10382 line_height,
10383 &text_hitbox,
10384 content_origin,
10385 right_margin,
10386 scroll_pixel_position,
10387 gutter_dimensions.width - gutter_dimensions.left_padding,
10388 window,
10389 cx,
10390 );
10391
10392 let test_indicators = if gutter_settings.runnables {
10393 self.layout_run_indicators(
10394 line_height,
10395 start_row..end_row,
10396 &row_infos,
10397 scroll_position,
10398 &gutter_dimensions,
10399 &gutter_hitbox,
10400 &display_hunks,
10401 &snapshot,
10402 &mut breakpoint_rows,
10403 window,
10404 cx,
10405 )
10406 } else {
10407 Vec::new()
10408 };
10409
10410 let show_breakpoints = snapshot
10411 .show_breakpoints
10412 .unwrap_or(gutter_settings.breakpoints);
10413 let breakpoints = if show_breakpoints {
10414 self.layout_breakpoints(
10415 line_height,
10416 start_row..end_row,
10417 scroll_position,
10418 &gutter_dimensions,
10419 &gutter_hitbox,
10420 &display_hunks,
10421 &snapshot,
10422 breakpoint_rows,
10423 &row_infos,
10424 window,
10425 cx,
10426 )
10427 } else {
10428 Vec::new()
10429 };
10430
10431 let diff_review_button = self
10432 .should_render_diff_review_button(start_row..end_row, &row_infos, cx)
10433 .map(|display_row| {
10434 prepaint_gutter_button(
10435 Self::diff_review_button(),
10436 display_row,
10437 line_height,
10438 &gutter_dimensions,
10439 scroll_position,
10440 &gutter_hitbox,
10441 &display_hunks,
10442 window,
10443 cx,
10444 )
10445 });
10446
10447 self.layout_signature_help(
10448 &hitbox,
10449 content_origin,
10450 scroll_pixel_position,
10451 newest_selection_head,
10452 start_row,
10453 &line_layouts,
10454 line_height,
10455 em_width,
10456 context_menu_layout,
10457 window,
10458 cx,
10459 );
10460
10461 if !cx.has_active_drag() {
10462 self.layout_hover_popovers(
10463 &snapshot,
10464 &hitbox,
10465 start_row..end_row,
10466 content_origin,
10467 scroll_pixel_position,
10468 &line_layouts,
10469 line_height,
10470 em_width,
10471 context_menu_layout,
10472 window,
10473 cx,
10474 );
10475
10476 self.layout_blame_popover(&snapshot, &hitbox, line_height, window, cx);
10477 }
10478
10479 let mouse_context_menu = self.layout_mouse_context_menu(
10480 &snapshot,
10481 start_row..end_row,
10482 content_origin,
10483 window,
10484 cx,
10485 );
10486
10487 window.with_element_namespace("crease_toggles", |window| {
10488 self.prepaint_crease_toggles(
10489 &mut crease_toggles,
10490 line_height,
10491 &gutter_dimensions,
10492 gutter_settings,
10493 scroll_pixel_position,
10494 &gutter_hitbox,
10495 window,
10496 cx,
10497 )
10498 });
10499
10500 window.with_element_namespace("expand_toggles", |window| {
10501 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
10502 });
10503
10504 let wrap_guides = self.layout_wrap_guides(
10505 em_advance,
10506 scroll_position,
10507 content_origin,
10508 scrollbars_layout.as_ref(),
10509 vertical_scrollbar_width,
10510 &hitbox,
10511 window,
10512 cx,
10513 );
10514
10515 let minimap = window.with_element_namespace("minimap", |window| {
10516 self.layout_minimap(
10517 &snapshot,
10518 minimap_width,
10519 scroll_position,
10520 &scrollbar_layout_information,
10521 scrollbars_layout.as_ref(),
10522 window,
10523 cx,
10524 )
10525 });
10526
10527 let invisible_symbol_font_size = font_size / 2.;
10528 let whitespace_map = &self
10529 .editor
10530 .read(cx)
10531 .buffer
10532 .read(cx)
10533 .language_settings(cx)
10534 .whitespace_map;
10535
10536 let tab_char = whitespace_map.tab.clone();
10537 let tab_len = tab_char.len();
10538 let tab_invisible = window.text_system().shape_line(
10539 tab_char,
10540 invisible_symbol_font_size,
10541 &[TextRun {
10542 len: tab_len,
10543 font: self.style.text.font(),
10544 color: cx.theme().colors().editor_invisible,
10545 ..Default::default()
10546 }],
10547 None,
10548 );
10549
10550 let space_char = whitespace_map.space.clone();
10551 let space_len = space_char.len();
10552 let space_invisible = window.text_system().shape_line(
10553 space_char,
10554 invisible_symbol_font_size,
10555 &[TextRun {
10556 len: space_len,
10557 font: self.style.text.font(),
10558 color: cx.theme().colors().editor_invisible,
10559 ..Default::default()
10560 }],
10561 None,
10562 );
10563
10564 let mode = snapshot.mode.clone();
10565
10566 let (diff_hunk_controls, diff_hunk_control_bounds) = if is_read_only {
10567 (vec![], vec![])
10568 } else {
10569 self.layout_diff_hunk_controls(
10570 start_row..end_row,
10571 &row_infos,
10572 &text_hitbox,
10573 newest_selection_head,
10574 line_height,
10575 right_margin,
10576 scroll_pixel_position,
10577 &display_hunks,
10578 &highlighted_rows,
10579 self.editor.clone(),
10580 window,
10581 cx,
10582 )
10583 };
10584
10585 let position_map = Rc::new(PositionMap {
10586 size: bounds.size,
10587 visible_row_range,
10588 scroll_position,
10589 scroll_pixel_position,
10590 scroll_max,
10591 line_layouts,
10592 line_height,
10593 em_width,
10594 em_advance,
10595 snapshot,
10596 text_align: self.style.text.text_align,
10597 content_width: text_hitbox.size.width,
10598 gutter_hitbox: gutter_hitbox.clone(),
10599 text_hitbox: text_hitbox.clone(),
10600 inline_blame_bounds: inline_blame_layout
10601 .as_ref()
10602 .map(|layout| (layout.bounds, layout.buffer_id, layout.entry.clone())),
10603 display_hunks: display_hunks.clone(),
10604 diff_hunk_control_bounds,
10605 });
10606
10607 self.editor.update(cx, |editor, _| {
10608 editor.last_position_map = Some(position_map.clone())
10609 });
10610
10611 EditorLayout {
10612 mode,
10613 position_map,
10614 visible_display_row_range: start_row..end_row,
10615 wrap_guides,
10616 indent_guides,
10617 hitbox,
10618 gutter_hitbox,
10619 display_hunks,
10620 content_origin,
10621 scrollbars_layout,
10622 minimap,
10623 active_rows,
10624 highlighted_rows,
10625 highlighted_ranges,
10626 highlighted_gutter_ranges,
10627 redacted_ranges,
10628 document_colors,
10629 line_elements,
10630 line_numbers,
10631 blamed_display_rows,
10632 inline_diagnostics,
10633 inline_blame_layout,
10634 inline_code_actions,
10635 blocks,
10636 cursors,
10637 visible_cursors,
10638 selections,
10639 edit_prediction_popover,
10640 diff_hunk_controls,
10641 mouse_context_menu,
10642 test_indicators,
10643 breakpoints,
10644 diff_review_button,
10645 crease_toggles,
10646 crease_trailers,
10647 tab_invisible,
10648 space_invisible,
10649 sticky_buffer_header,
10650 sticky_headers,
10651 expand_toggles,
10652 text_align: self.style.text.text_align,
10653 content_width: text_hitbox.size.width,
10654 }
10655 })
10656 })
10657 })
10658 }
10659
10660 fn paint(
10661 &mut self,
10662 _: Option<&GlobalElementId>,
10663 _inspector_id: Option<&gpui::InspectorElementId>,
10664 bounds: Bounds<gpui::Pixels>,
10665 _: &mut Self::RequestLayoutState,
10666 layout: &mut Self::PrepaintState,
10667 window: &mut Window,
10668 cx: &mut App,
10669 ) {
10670 if !layout.mode.is_minimap() {
10671 let focus_handle = self.editor.focus_handle(cx);
10672 let key_context = self
10673 .editor
10674 .update(cx, |editor, cx| editor.key_context(window, cx));
10675
10676 window.set_key_context(key_context);
10677 window.handle_input(
10678 &focus_handle,
10679 ElementInputHandler::new(bounds, self.editor.clone()),
10680 cx,
10681 );
10682 self.register_actions(window, cx);
10683 self.register_key_listeners(window, cx, layout);
10684 }
10685
10686 let text_style = TextStyleRefinement {
10687 font_size: Some(self.style.text.font_size),
10688 line_height: Some(self.style.text.line_height),
10689 ..Default::default()
10690 };
10691 let rem_size = self.rem_size(cx);
10692 window.with_rem_size(rem_size, |window| {
10693 window.with_text_style(Some(text_style), |window| {
10694 window.with_content_mask(Some(ContentMask { bounds }), |window| {
10695 self.paint_mouse_listeners(layout, window, cx);
10696 self.paint_background(layout, window, cx);
10697 self.paint_indent_guides(layout, window, cx);
10698
10699 if layout.gutter_hitbox.size.width > Pixels::ZERO {
10700 self.paint_blamed_display_rows(layout, window, cx);
10701 self.paint_line_numbers(layout, window, cx);
10702 }
10703
10704 self.paint_text(layout, window, cx);
10705
10706 if layout.gutter_hitbox.size.width > Pixels::ZERO {
10707 self.paint_gutter_highlights(layout, window, cx);
10708 self.paint_gutter_indicators(layout, window, cx);
10709 }
10710
10711 if !layout.blocks.is_empty() {
10712 window.with_element_namespace("blocks", |window| {
10713 self.paint_blocks(layout, window, cx);
10714 });
10715 }
10716
10717 window.with_element_namespace("blocks", |window| {
10718 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
10719 sticky_header.paint(window, cx)
10720 }
10721 });
10722
10723 self.paint_sticky_headers(layout, window, cx);
10724 self.paint_minimap(layout, window, cx);
10725 self.paint_scrollbars(layout, window, cx);
10726 self.paint_edit_prediction_popover(layout, window, cx);
10727 self.paint_mouse_context_menu(layout, window, cx);
10728 });
10729 })
10730 })
10731 }
10732}
10733
10734pub(super) fn gutter_bounds(
10735 editor_bounds: Bounds<Pixels>,
10736 gutter_dimensions: GutterDimensions,
10737) -> Bounds<Pixels> {
10738 Bounds {
10739 origin: editor_bounds.origin,
10740 size: size(gutter_dimensions.width, editor_bounds.size.height),
10741 }
10742}
10743
10744#[derive(Clone, Copy)]
10745struct ContextMenuLayout {
10746 y_flipped: bool,
10747 bounds: Bounds<Pixels>,
10748}
10749
10750/// Holds information required for layouting the editor scrollbars.
10751struct ScrollbarLayoutInformation {
10752 /// The bounds of the editor area (excluding the content offset).
10753 editor_bounds: Bounds<Pixels>,
10754 /// The available range to scroll within the document.
10755 scroll_range: Size<Pixels>,
10756 /// The space available for one glyph in the editor.
10757 glyph_grid_cell: Size<Pixels>,
10758}
10759
10760impl ScrollbarLayoutInformation {
10761 pub fn new(
10762 editor_bounds: Bounds<Pixels>,
10763 glyph_grid_cell: Size<Pixels>,
10764 document_size: Size<Pixels>,
10765 longest_line_blame_width: Pixels,
10766 settings: &EditorSettings,
10767 ) -> Self {
10768 let vertical_overscroll = match settings.scroll_beyond_last_line {
10769 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
10770 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
10771 ScrollBeyondLastLine::VerticalScrollMargin => {
10772 (1.0 + settings.vertical_scroll_margin) as f32 * glyph_grid_cell.height
10773 }
10774 };
10775
10776 let overscroll = size(longest_line_blame_width, vertical_overscroll);
10777
10778 ScrollbarLayoutInformation {
10779 editor_bounds,
10780 scroll_range: document_size + overscroll,
10781 glyph_grid_cell,
10782 }
10783 }
10784}
10785
10786impl IntoElement for EditorElement {
10787 type Element = Self;
10788
10789 fn into_element(self) -> Self::Element {
10790 self
10791 }
10792}
10793
10794pub struct EditorLayout {
10795 position_map: Rc<PositionMap>,
10796 hitbox: Hitbox,
10797 gutter_hitbox: Hitbox,
10798 content_origin: gpui::Point<Pixels>,
10799 scrollbars_layout: Option<EditorScrollbars>,
10800 minimap: Option<MinimapLayout>,
10801 mode: EditorMode,
10802 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
10803 indent_guides: Option<Vec<IndentGuideLayout>>,
10804 visible_display_row_range: Range<DisplayRow>,
10805 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
10806 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
10807 line_elements: SmallVec<[AnyElement; 1]>,
10808 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
10809 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
10810 blamed_display_rows: Option<Vec<AnyElement>>,
10811 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
10812 inline_blame_layout: Option<InlineBlameLayout>,
10813 inline_code_actions: Option<AnyElement>,
10814 blocks: Vec<BlockLayout>,
10815 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
10816 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
10817 redacted_ranges: Vec<Range<DisplayPoint>>,
10818 cursors: Vec<(DisplayPoint, Hsla)>,
10819 visible_cursors: Vec<CursorLayout>,
10820 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
10821 test_indicators: Vec<AnyElement>,
10822 breakpoints: Vec<AnyElement>,
10823 diff_review_button: Option<AnyElement>,
10824 crease_toggles: Vec<Option<AnyElement>>,
10825 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
10826 diff_hunk_controls: Vec<AnyElement>,
10827 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
10828 edit_prediction_popover: Option<AnyElement>,
10829 mouse_context_menu: Option<AnyElement>,
10830 tab_invisible: ShapedLine,
10831 space_invisible: ShapedLine,
10832 sticky_buffer_header: Option<AnyElement>,
10833 sticky_headers: Option<StickyHeaders>,
10834 document_colors: Option<(DocumentColorsRenderMode, Vec<(Range<DisplayPoint>, Hsla)>)>,
10835 text_align: TextAlign,
10836 content_width: Pixels,
10837}
10838
10839struct StickyHeaders {
10840 lines: Vec<StickyHeaderLine>,
10841 gutter_background: Hsla,
10842 content_background: Hsla,
10843 gutter_right_padding: Pixels,
10844}
10845
10846struct StickyHeaderLine {
10847 row: DisplayRow,
10848 offset: Pixels,
10849 line: LineWithInvisibles,
10850 line_number: Option<ShapedLine>,
10851 elements: SmallVec<[AnyElement; 1]>,
10852 available_text_width: Pixels,
10853 target_anchor: Anchor,
10854 hitbox: Hitbox,
10855}
10856
10857impl EditorLayout {
10858 fn line_end_overshoot(&self) -> Pixels {
10859 0.15 * self.position_map.line_height
10860 }
10861}
10862
10863impl StickyHeaders {
10864 fn paint(
10865 &mut self,
10866 layout: &mut EditorLayout,
10867 whitespace_setting: ShowWhitespaceSetting,
10868 window: &mut Window,
10869 cx: &mut App,
10870 ) {
10871 let line_height = layout.position_map.line_height;
10872
10873 for line in self.lines.iter_mut().rev() {
10874 window.paint_layer(
10875 Bounds::new(
10876 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
10877 size(line.hitbox.size.width, line_height),
10878 ),
10879 |window| {
10880 let gutter_bounds = Bounds::new(
10881 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
10882 size(layout.gutter_hitbox.size.width, line_height),
10883 );
10884 window.paint_quad(fill(gutter_bounds, self.gutter_background));
10885
10886 let text_bounds = Bounds::new(
10887 layout.position_map.text_hitbox.origin + point(Pixels::ZERO, line.offset),
10888 size(line.available_text_width, line_height),
10889 );
10890 window.paint_quad(fill(text_bounds, self.content_background));
10891
10892 if line.hitbox.is_hovered(window) {
10893 let hover_overlay = cx.theme().colors().panel_overlay_hover;
10894 window.paint_quad(fill(gutter_bounds, hover_overlay));
10895 window.paint_quad(fill(text_bounds, hover_overlay));
10896 }
10897
10898 line.paint(
10899 layout,
10900 self.gutter_right_padding,
10901 line.available_text_width,
10902 layout.content_origin,
10903 line_height,
10904 whitespace_setting,
10905 window,
10906 cx,
10907 );
10908 },
10909 );
10910
10911 window.set_cursor_style(CursorStyle::PointingHand, &line.hitbox);
10912 }
10913 }
10914}
10915
10916impl StickyHeaderLine {
10917 fn new(
10918 row: DisplayRow,
10919 offset: Pixels,
10920 mut line: LineWithInvisibles,
10921 line_number: Option<ShapedLine>,
10922 target_anchor: Anchor,
10923 line_height: Pixels,
10924 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
10925 content_origin: gpui::Point<Pixels>,
10926 gutter_hitbox: &Hitbox,
10927 text_hitbox: &Hitbox,
10928 window: &mut Window,
10929 cx: &mut App,
10930 ) -> Self {
10931 let mut elements = SmallVec::<[AnyElement; 1]>::new();
10932 line.prepaint_with_custom_offset(
10933 line_height,
10934 scroll_pixel_position,
10935 content_origin,
10936 offset,
10937 &mut elements,
10938 window,
10939 cx,
10940 );
10941
10942 let hitbox_bounds = Bounds::new(
10943 gutter_hitbox.origin + point(Pixels::ZERO, offset),
10944 size(text_hitbox.right() - gutter_hitbox.left(), line_height),
10945 );
10946 let available_text_width =
10947 (hitbox_bounds.size.width - gutter_hitbox.size.width).max(Pixels::ZERO);
10948
10949 Self {
10950 row,
10951 offset,
10952 line,
10953 line_number,
10954 elements,
10955 available_text_width,
10956 target_anchor,
10957 hitbox: window.insert_hitbox(hitbox_bounds, HitboxBehavior::BlockMouseExceptScroll),
10958 }
10959 }
10960
10961 fn paint(
10962 &mut self,
10963 layout: &EditorLayout,
10964 gutter_right_padding: Pixels,
10965 available_text_width: Pixels,
10966 content_origin: gpui::Point<Pixels>,
10967 line_height: Pixels,
10968 whitespace_setting: ShowWhitespaceSetting,
10969 window: &mut Window,
10970 cx: &mut App,
10971 ) {
10972 window.with_content_mask(
10973 Some(ContentMask {
10974 bounds: Bounds::new(
10975 layout.position_map.text_hitbox.bounds.origin
10976 + point(Pixels::ZERO, self.offset),
10977 size(available_text_width, line_height),
10978 ),
10979 }),
10980 |window| {
10981 self.line.draw_with_custom_offset(
10982 layout,
10983 self.row,
10984 content_origin,
10985 self.offset,
10986 whitespace_setting,
10987 &[],
10988 window,
10989 cx,
10990 );
10991 for element in &mut self.elements {
10992 element.paint(window, cx);
10993 }
10994 },
10995 );
10996
10997 if let Some(line_number) = &self.line_number {
10998 let gutter_origin = layout.gutter_hitbox.origin + point(Pixels::ZERO, self.offset);
10999 let gutter_width = layout.gutter_hitbox.size.width;
11000 let origin = point(
11001 gutter_origin.x + gutter_width - gutter_right_padding - line_number.width,
11002 gutter_origin.y,
11003 );
11004 line_number
11005 .paint(origin, line_height, TextAlign::Left, None, window, cx)
11006 .log_err();
11007 }
11008 }
11009}
11010
11011#[derive(Debug)]
11012struct LineNumberSegment {
11013 shaped_line: ShapedLine,
11014 hitbox: Option<Hitbox>,
11015}
11016
11017#[derive(Debug)]
11018struct LineNumberLayout {
11019 segments: SmallVec<[LineNumberSegment; 1]>,
11020}
11021
11022struct ColoredRange<T> {
11023 start: T,
11024 end: T,
11025 color: Hsla,
11026}
11027
11028impl Along for ScrollbarAxes {
11029 type Unit = bool;
11030
11031 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
11032 match axis {
11033 ScrollbarAxis::Horizontal => self.horizontal,
11034 ScrollbarAxis::Vertical => self.vertical,
11035 }
11036 }
11037
11038 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
11039 match axis {
11040 ScrollbarAxis::Horizontal => ScrollbarAxes {
11041 horizontal: f(self.horizontal),
11042 vertical: self.vertical,
11043 },
11044 ScrollbarAxis::Vertical => ScrollbarAxes {
11045 horizontal: self.horizontal,
11046 vertical: f(self.vertical),
11047 },
11048 }
11049 }
11050}
11051
11052#[derive(Clone)]
11053struct EditorScrollbars {
11054 pub vertical: Option<ScrollbarLayout>,
11055 pub horizontal: Option<ScrollbarLayout>,
11056 pub visible: bool,
11057}
11058
11059impl EditorScrollbars {
11060 pub fn from_scrollbar_axes(
11061 show_scrollbar: ScrollbarAxes,
11062 layout_information: &ScrollbarLayoutInformation,
11063 content_offset: gpui::Point<Pixels>,
11064 scroll_position: gpui::Point<f64>,
11065 scrollbar_width: Pixels,
11066 right_margin: Pixels,
11067 editor_width: Pixels,
11068 show_scrollbars: bool,
11069 scrollbar_state: Option<&ActiveScrollbarState>,
11070 window: &mut Window,
11071 ) -> Self {
11072 let ScrollbarLayoutInformation {
11073 editor_bounds,
11074 scroll_range,
11075 glyph_grid_cell,
11076 } = layout_information;
11077
11078 let viewport_size = size(editor_width, editor_bounds.size.height);
11079
11080 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
11081 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
11082 Corner::BottomLeft,
11083 editor_bounds.bottom_left(),
11084 size(
11085 // The horizontal viewport size differs from the space available for the
11086 // horizontal scrollbar, so we have to manually stitch it together here.
11087 editor_bounds.size.width - right_margin,
11088 scrollbar_width,
11089 ),
11090 ),
11091 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
11092 Corner::TopRight,
11093 editor_bounds.top_right(),
11094 size(scrollbar_width, viewport_size.height),
11095 ),
11096 };
11097
11098 let mut create_scrollbar_layout = |axis| {
11099 let viewport_size = viewport_size.along(axis);
11100 let scroll_range = scroll_range.along(axis);
11101
11102 // We always want a vertical scrollbar track for scrollbar diagnostic visibility.
11103 (show_scrollbar.along(axis)
11104 && (axis == ScrollbarAxis::Vertical || scroll_range > viewport_size))
11105 .then(|| {
11106 ScrollbarLayout::new(
11107 window.insert_hitbox(scrollbar_bounds_for(axis), HitboxBehavior::Normal),
11108 viewport_size,
11109 scroll_range,
11110 glyph_grid_cell.along(axis),
11111 content_offset.along(axis),
11112 scroll_position.along(axis),
11113 show_scrollbars,
11114 axis,
11115 )
11116 .with_thumb_state(
11117 scrollbar_state.and_then(|state| state.thumb_state_for_axis(axis)),
11118 )
11119 })
11120 };
11121
11122 Self {
11123 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
11124 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
11125 visible: show_scrollbars,
11126 }
11127 }
11128
11129 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
11130 [
11131 (&self.vertical, ScrollbarAxis::Vertical),
11132 (&self.horizontal, ScrollbarAxis::Horizontal),
11133 ]
11134 .into_iter()
11135 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
11136 }
11137
11138 /// Returns the currently hovered scrollbar axis, if any.
11139 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
11140 self.iter_scrollbars()
11141 .find(|s| s.0.hitbox.is_hovered(window))
11142 }
11143}
11144
11145#[derive(Clone)]
11146struct ScrollbarLayout {
11147 hitbox: Hitbox,
11148 visible_range: Range<ScrollOffset>,
11149 text_unit_size: Pixels,
11150 thumb_bounds: Option<Bounds<Pixels>>,
11151 thumb_state: ScrollbarThumbState,
11152}
11153
11154impl ScrollbarLayout {
11155 const BORDER_WIDTH: Pixels = px(1.0);
11156 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
11157 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
11158 const MIN_THUMB_SIZE: Pixels = px(25.0);
11159
11160 fn new(
11161 scrollbar_track_hitbox: Hitbox,
11162 viewport_size: Pixels,
11163 scroll_range: Pixels,
11164 glyph_space: Pixels,
11165 content_offset: Pixels,
11166 scroll_position: ScrollOffset,
11167 show_thumb: bool,
11168 axis: ScrollbarAxis,
11169 ) -> Self {
11170 let track_bounds = scrollbar_track_hitbox.bounds;
11171 // The length of the track available to the scrollbar thumb. We deliberately
11172 // exclude the content size here so that the thumb aligns with the content.
11173 let track_length = track_bounds.size.along(axis) - content_offset;
11174
11175 Self::new_with_hitbox_and_track_length(
11176 scrollbar_track_hitbox,
11177 track_length,
11178 viewport_size,
11179 scroll_range.into(),
11180 glyph_space,
11181 content_offset.into(),
11182 scroll_position,
11183 show_thumb,
11184 axis,
11185 )
11186 }
11187
11188 fn for_minimap(
11189 minimap_track_hitbox: Hitbox,
11190 visible_lines: f64,
11191 total_editor_lines: f64,
11192 minimap_line_height: Pixels,
11193 scroll_position: ScrollOffset,
11194 minimap_scroll_top: ScrollOffset,
11195 show_thumb: bool,
11196 ) -> Self {
11197 // The scrollbar thumb size is calculated as
11198 // (visible_content/total_content) Γ scrollbar_track_length.
11199 //
11200 // For the minimap's thumb layout, we leverage this by setting the
11201 // scrollbar track length to the entire document size (using minimap line
11202 // height). This creates a thumb that exactly represents the editor
11203 // viewport scaled to minimap proportions.
11204 //
11205 // We adjust the thumb position relative to `minimap_scroll_top` to
11206 // accommodate for the deliberately oversized track.
11207 //
11208 // This approach ensures that the minimap thumb accurately reflects the
11209 // editor's current scroll position whilst nicely synchronizing the minimap
11210 // thumb and scrollbar thumb.
11211 let scroll_range = total_editor_lines * f64::from(minimap_line_height);
11212 let viewport_size = visible_lines * f64::from(minimap_line_height);
11213
11214 let track_top_offset = -minimap_scroll_top * f64::from(minimap_line_height);
11215
11216 Self::new_with_hitbox_and_track_length(
11217 minimap_track_hitbox,
11218 Pixels::from(scroll_range),
11219 Pixels::from(viewport_size),
11220 scroll_range,
11221 minimap_line_height,
11222 track_top_offset,
11223 scroll_position,
11224 show_thumb,
11225 ScrollbarAxis::Vertical,
11226 )
11227 }
11228
11229 fn new_with_hitbox_and_track_length(
11230 scrollbar_track_hitbox: Hitbox,
11231 track_length: Pixels,
11232 viewport_size: Pixels,
11233 scroll_range: f64,
11234 glyph_space: Pixels,
11235 content_offset: ScrollOffset,
11236 scroll_position: ScrollOffset,
11237 show_thumb: bool,
11238 axis: ScrollbarAxis,
11239 ) -> Self {
11240 let text_units_per_page = viewport_size.to_f64() / glyph_space.to_f64();
11241 let visible_range = scroll_position..scroll_position + text_units_per_page;
11242 let total_text_units = scroll_range / glyph_space.to_f64();
11243
11244 let thumb_percentage = text_units_per_page / total_text_units;
11245 let thumb_size = Pixels::from(ScrollOffset::from(track_length) * thumb_percentage)
11246 .max(ScrollbarLayout::MIN_THUMB_SIZE)
11247 .min(track_length);
11248
11249 let text_unit_divisor = (total_text_units - text_units_per_page).max(0.);
11250
11251 let content_larger_than_viewport = text_unit_divisor > 0.;
11252
11253 let text_unit_size = if content_larger_than_viewport {
11254 Pixels::from(ScrollOffset::from(track_length - thumb_size) / text_unit_divisor)
11255 } else {
11256 glyph_space
11257 };
11258
11259 let thumb_bounds = (show_thumb && content_larger_than_viewport).then(|| {
11260 Self::thumb_bounds(
11261 &scrollbar_track_hitbox,
11262 content_offset,
11263 visible_range.start,
11264 text_unit_size,
11265 thumb_size,
11266 axis,
11267 )
11268 });
11269
11270 ScrollbarLayout {
11271 hitbox: scrollbar_track_hitbox,
11272 visible_range,
11273 text_unit_size,
11274 thumb_bounds,
11275 thumb_state: Default::default(),
11276 }
11277 }
11278
11279 fn with_thumb_state(self, thumb_state: Option<ScrollbarThumbState>) -> Self {
11280 if let Some(thumb_state) = thumb_state {
11281 Self {
11282 thumb_state,
11283 ..self
11284 }
11285 } else {
11286 self
11287 }
11288 }
11289
11290 fn thumb_bounds(
11291 scrollbar_track: &Hitbox,
11292 content_offset: f64,
11293 visible_range_start: f64,
11294 text_unit_size: Pixels,
11295 thumb_size: Pixels,
11296 axis: ScrollbarAxis,
11297 ) -> Bounds<Pixels> {
11298 let thumb_origin = scrollbar_track.origin.apply_along(axis, |origin| {
11299 origin
11300 + Pixels::from(
11301 content_offset + visible_range_start * ScrollOffset::from(text_unit_size),
11302 )
11303 });
11304 Bounds::new(
11305 thumb_origin,
11306 scrollbar_track.size.apply_along(axis, |_| thumb_size),
11307 )
11308 }
11309
11310 fn thumb_hovered(&self, position: &gpui::Point<Pixels>) -> bool {
11311 self.thumb_bounds
11312 .is_some_and(|bounds| bounds.contains(position))
11313 }
11314
11315 fn marker_quads_for_ranges(
11316 &self,
11317 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
11318 column: Option<usize>,
11319 ) -> Vec<PaintQuad> {
11320 struct MinMax {
11321 min: Pixels,
11322 max: Pixels,
11323 }
11324 let (x_range, height_limit) = if let Some(column) = column {
11325 let column_width = ((self.hitbox.size.width - Self::BORDER_WIDTH) / 3.0).floor();
11326 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
11327 let end = start + column_width;
11328 (
11329 Range { start, end },
11330 MinMax {
11331 min: Self::MIN_MARKER_HEIGHT,
11332 max: px(f32::MAX),
11333 },
11334 )
11335 } else {
11336 (
11337 Range {
11338 start: Self::BORDER_WIDTH,
11339 end: self.hitbox.size.width,
11340 },
11341 MinMax {
11342 min: Self::LINE_MARKER_HEIGHT,
11343 max: Self::LINE_MARKER_HEIGHT,
11344 },
11345 )
11346 };
11347
11348 let row_to_y = |row: DisplayRow| row.as_f64() as f32 * self.text_unit_size;
11349 let mut pixel_ranges = row_ranges
11350 .into_iter()
11351 .map(|range| {
11352 let start_y = row_to_y(range.start);
11353 let end_y = row_to_y(range.end)
11354 + self
11355 .text_unit_size
11356 .max(height_limit.min)
11357 .min(height_limit.max);
11358 ColoredRange {
11359 start: start_y,
11360 end: end_y,
11361 color: range.color,
11362 }
11363 })
11364 .peekable();
11365
11366 let mut quads = Vec::new();
11367 while let Some(mut pixel_range) = pixel_ranges.next() {
11368 while let Some(next_pixel_range) = pixel_ranges.peek() {
11369 if pixel_range.end >= next_pixel_range.start - px(1.0)
11370 && pixel_range.color == next_pixel_range.color
11371 {
11372 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
11373 pixel_ranges.next();
11374 } else {
11375 break;
11376 }
11377 }
11378
11379 let bounds = Bounds::from_corners(
11380 point(x_range.start, pixel_range.start),
11381 point(x_range.end, pixel_range.end),
11382 );
11383 quads.push(quad(
11384 bounds,
11385 Corners::default(),
11386 pixel_range.color,
11387 Edges::default(),
11388 Hsla::transparent_black(),
11389 BorderStyle::default(),
11390 ));
11391 }
11392
11393 quads
11394 }
11395}
11396
11397struct MinimapLayout {
11398 pub minimap: AnyElement,
11399 pub thumb_layout: ScrollbarLayout,
11400 pub minimap_scroll_top: ScrollOffset,
11401 pub minimap_line_height: Pixels,
11402 pub thumb_border_style: MinimapThumbBorder,
11403 pub max_scroll_top: ScrollOffset,
11404}
11405
11406impl MinimapLayout {
11407 /// The minimum width of the minimap in columns. If the minimap is smaller than this, it will be hidden.
11408 const MINIMAP_MIN_WIDTH_COLUMNS: f32 = 20.;
11409 /// The minimap width as a percentage of the editor width.
11410 const MINIMAP_WIDTH_PCT: f32 = 0.15;
11411 /// Calculates the scroll top offset the minimap editor has to have based on the
11412 /// current scroll progress.
11413 fn calculate_minimap_top_offset(
11414 document_lines: f64,
11415 visible_editor_lines: f64,
11416 visible_minimap_lines: f64,
11417 scroll_position: f64,
11418 ) -> ScrollOffset {
11419 let non_visible_document_lines = (document_lines - visible_editor_lines).max(0.);
11420 if non_visible_document_lines == 0. {
11421 0.
11422 } else {
11423 let scroll_percentage = (scroll_position / non_visible_document_lines).clamp(0., 1.);
11424 scroll_percentage * (document_lines - visible_minimap_lines).max(0.)
11425 }
11426 }
11427}
11428
11429struct CreaseTrailerLayout {
11430 element: AnyElement,
11431 bounds: Bounds<Pixels>,
11432}
11433
11434pub(crate) struct PositionMap {
11435 pub size: Size<Pixels>,
11436 pub line_height: Pixels,
11437 pub scroll_position: gpui::Point<ScrollOffset>,
11438 pub scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
11439 pub scroll_max: gpui::Point<ScrollOffset>,
11440 pub em_width: Pixels,
11441 pub em_advance: Pixels,
11442 pub visible_row_range: Range<DisplayRow>,
11443 pub line_layouts: Vec<LineWithInvisibles>,
11444 pub snapshot: EditorSnapshot,
11445 pub text_align: TextAlign,
11446 pub content_width: Pixels,
11447 pub text_hitbox: Hitbox,
11448 pub gutter_hitbox: Hitbox,
11449 pub inline_blame_bounds: Option<(Bounds<Pixels>, BufferId, BlameEntry)>,
11450 pub display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
11451 pub diff_hunk_control_bounds: Vec<(DisplayRow, Bounds<Pixels>)>,
11452}
11453
11454#[derive(Debug, Copy, Clone)]
11455pub struct PointForPosition {
11456 pub previous_valid: DisplayPoint,
11457 pub next_valid: DisplayPoint,
11458 pub exact_unclipped: DisplayPoint,
11459 pub column_overshoot_after_line_end: u32,
11460}
11461
11462impl PointForPosition {
11463 pub fn as_valid(&self) -> Option<DisplayPoint> {
11464 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
11465 Some(self.previous_valid)
11466 } else {
11467 None
11468 }
11469 }
11470
11471 pub fn intersects_selection(&self, selection: &Selection<DisplayPoint>) -> bool {
11472 let Some(valid_point) = self.as_valid() else {
11473 return false;
11474 };
11475 let range = selection.range();
11476
11477 let candidate_row = valid_point.row();
11478 let candidate_col = valid_point.column();
11479
11480 let start_row = range.start.row();
11481 let start_col = range.start.column();
11482 let end_row = range.end.row();
11483 let end_col = range.end.column();
11484
11485 if candidate_row < start_row || candidate_row > end_row {
11486 false
11487 } else if start_row == end_row {
11488 candidate_col >= start_col && candidate_col < end_col
11489 } else if candidate_row == start_row {
11490 candidate_col >= start_col
11491 } else if candidate_row == end_row {
11492 candidate_col < end_col
11493 } else {
11494 true
11495 }
11496 }
11497}
11498
11499impl PositionMap {
11500 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
11501 let text_bounds = self.text_hitbox.bounds;
11502 let scroll_position = self.snapshot.scroll_position();
11503 let position = position - text_bounds.origin;
11504 let y = position.y.max(px(0.)).min(self.size.height);
11505 let x = position.x + (scroll_position.x as f32 * self.em_advance);
11506 let row = ((y / self.line_height) as f64 + scroll_position.y) as u32;
11507
11508 let (column, x_overshoot_after_line_end) = if let Some(line) = self
11509 .line_layouts
11510 .get(row as usize - scroll_position.y as usize)
11511 {
11512 let alignment_offset = line.alignment_offset(self.text_align, self.content_width);
11513 let x_relative_to_text = x - alignment_offset;
11514 if let Some(ix) = line.index_for_x(x_relative_to_text) {
11515 (ix as u32, px(0.))
11516 } else {
11517 (line.len as u32, px(0.).max(x_relative_to_text - line.width))
11518 }
11519 } else {
11520 (0, x)
11521 };
11522
11523 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
11524 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
11525 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
11526
11527 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
11528 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
11529 PointForPosition {
11530 previous_valid,
11531 next_valid,
11532 exact_unclipped,
11533 column_overshoot_after_line_end,
11534 }
11535 }
11536}
11537
11538struct BlockLayout {
11539 id: BlockId,
11540 x_offset: Pixels,
11541 row: Option<DisplayRow>,
11542 element: AnyElement,
11543 available_space: Size<AvailableSpace>,
11544 style: BlockStyle,
11545 overlaps_gutter: bool,
11546 is_buffer_header: bool,
11547}
11548
11549pub fn layout_line(
11550 row: DisplayRow,
11551 snapshot: &EditorSnapshot,
11552 style: &EditorStyle,
11553 text_width: Pixels,
11554 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
11555 window: &mut Window,
11556 cx: &mut App,
11557) -> LineWithInvisibles {
11558 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
11559 LineWithInvisibles::from_chunks(
11560 chunks,
11561 style,
11562 MAX_LINE_LEN,
11563 1,
11564 &snapshot.mode,
11565 text_width,
11566 is_row_soft_wrapped,
11567 &[],
11568 window,
11569 cx,
11570 )
11571 .pop()
11572 .unwrap()
11573}
11574
11575#[derive(Debug)]
11576pub struct IndentGuideLayout {
11577 origin: gpui::Point<Pixels>,
11578 length: Pixels,
11579 single_indent_width: Pixels,
11580 depth: u32,
11581 active: bool,
11582 settings: IndentGuideSettings,
11583}
11584
11585pub struct CursorLayout {
11586 origin: gpui::Point<Pixels>,
11587 block_width: Pixels,
11588 line_height: Pixels,
11589 color: Hsla,
11590 shape: CursorShape,
11591 block_text: Option<ShapedLine>,
11592 cursor_name: Option<AnyElement>,
11593}
11594
11595#[derive(Debug)]
11596pub struct CursorName {
11597 string: SharedString,
11598 color: Hsla,
11599 is_top_row: bool,
11600}
11601
11602impl CursorLayout {
11603 pub fn new(
11604 origin: gpui::Point<Pixels>,
11605 block_width: Pixels,
11606 line_height: Pixels,
11607 color: Hsla,
11608 shape: CursorShape,
11609 block_text: Option<ShapedLine>,
11610 ) -> CursorLayout {
11611 CursorLayout {
11612 origin,
11613 block_width,
11614 line_height,
11615 color,
11616 shape,
11617 block_text,
11618 cursor_name: None,
11619 }
11620 }
11621
11622 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
11623 Bounds {
11624 origin: self.origin + origin,
11625 size: size(self.block_width, self.line_height),
11626 }
11627 }
11628
11629 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
11630 match self.shape {
11631 CursorShape::Bar => Bounds {
11632 origin: self.origin + origin,
11633 size: size(px(2.0), self.line_height),
11634 },
11635 CursorShape::Block | CursorShape::Hollow => Bounds {
11636 origin: self.origin + origin,
11637 size: size(self.block_width, self.line_height),
11638 },
11639 CursorShape::Underline => Bounds {
11640 origin: self.origin
11641 + origin
11642 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
11643 size: size(self.block_width, px(2.0)),
11644 },
11645 }
11646 }
11647
11648 pub fn layout(
11649 &mut self,
11650 origin: gpui::Point<Pixels>,
11651 cursor_name: Option<CursorName>,
11652 window: &mut Window,
11653 cx: &mut App,
11654 ) {
11655 if let Some(cursor_name) = cursor_name {
11656 let bounds = self.bounds(origin);
11657 let text_size = self.line_height / 1.5;
11658
11659 let name_origin = if cursor_name.is_top_row {
11660 point(bounds.right() - px(1.), bounds.top())
11661 } else {
11662 match self.shape {
11663 CursorShape::Bar => point(
11664 bounds.right() - px(2.),
11665 bounds.top() - text_size / 2. - px(1.),
11666 ),
11667 _ => point(
11668 bounds.right() - px(1.),
11669 bounds.top() - text_size / 2. - px(1.),
11670 ),
11671 }
11672 };
11673 let mut name_element = div()
11674 .bg(self.color)
11675 .text_size(text_size)
11676 .px_0p5()
11677 .line_height(text_size + px(2.))
11678 .text_color(cursor_name.color)
11679 .child(cursor_name.string)
11680 .into_any_element();
11681
11682 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
11683
11684 self.cursor_name = Some(name_element);
11685 }
11686 }
11687
11688 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
11689 let bounds = self.bounds(origin);
11690
11691 //Draw background or border quad
11692 let cursor = if matches!(self.shape, CursorShape::Hollow) {
11693 outline(bounds, self.color, BorderStyle::Solid)
11694 } else {
11695 fill(bounds, self.color)
11696 };
11697
11698 if let Some(name) = &mut self.cursor_name {
11699 name.paint(window, cx);
11700 }
11701
11702 window.paint_quad(cursor);
11703
11704 if let Some(block_text) = &self.block_text {
11705 block_text
11706 .paint(
11707 self.origin + origin,
11708 self.line_height,
11709 TextAlign::Left,
11710 None,
11711 window,
11712 cx,
11713 )
11714 .log_err();
11715 }
11716 }
11717
11718 pub fn shape(&self) -> CursorShape {
11719 self.shape
11720 }
11721}
11722
11723#[derive(Debug)]
11724pub struct HighlightedRange {
11725 pub start_y: Pixels,
11726 pub line_height: Pixels,
11727 pub lines: Vec<HighlightedRangeLine>,
11728 pub color: Hsla,
11729 pub corner_radius: Pixels,
11730}
11731
11732#[derive(Debug)]
11733pub struct HighlightedRangeLine {
11734 pub start_x: Pixels,
11735 pub end_x: Pixels,
11736}
11737
11738impl HighlightedRange {
11739 pub fn paint(&self, fill: bool, bounds: Bounds<Pixels>, window: &mut Window) {
11740 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
11741 self.paint_lines(self.start_y, &self.lines[0..1], fill, bounds, window);
11742 self.paint_lines(
11743 self.start_y + self.line_height,
11744 &self.lines[1..],
11745 fill,
11746 bounds,
11747 window,
11748 );
11749 } else {
11750 self.paint_lines(self.start_y, &self.lines, fill, bounds, window);
11751 }
11752 }
11753
11754 fn paint_lines(
11755 &self,
11756 start_y: Pixels,
11757 lines: &[HighlightedRangeLine],
11758 fill: bool,
11759 _bounds: Bounds<Pixels>,
11760 window: &mut Window,
11761 ) {
11762 if lines.is_empty() {
11763 return;
11764 }
11765
11766 let first_line = lines.first().unwrap();
11767 let last_line = lines.last().unwrap();
11768
11769 let first_top_left = point(first_line.start_x, start_y);
11770 let first_top_right = point(first_line.end_x, start_y);
11771
11772 let curve_height = point(Pixels::ZERO, self.corner_radius);
11773 let curve_width = |start_x: Pixels, end_x: Pixels| {
11774 let max = (end_x - start_x) / 2.;
11775 let width = if max < self.corner_radius {
11776 max
11777 } else {
11778 self.corner_radius
11779 };
11780
11781 point(width, Pixels::ZERO)
11782 };
11783
11784 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
11785 let mut builder = if fill {
11786 gpui::PathBuilder::fill()
11787 } else {
11788 gpui::PathBuilder::stroke(px(1.))
11789 };
11790 builder.move_to(first_top_right - top_curve_width);
11791 builder.curve_to(first_top_right + curve_height, first_top_right);
11792
11793 let mut iter = lines.iter().enumerate().peekable();
11794 while let Some((ix, line)) = iter.next() {
11795 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
11796
11797 if let Some((_, next_line)) = iter.peek() {
11798 let next_top_right = point(next_line.end_x, bottom_right.y);
11799
11800 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
11801 Ordering::Equal => {
11802 builder.line_to(bottom_right);
11803 }
11804 Ordering::Less => {
11805 let curve_width = curve_width(next_top_right.x, bottom_right.x);
11806 builder.line_to(bottom_right - curve_height);
11807 if self.corner_radius > Pixels::ZERO {
11808 builder.curve_to(bottom_right - curve_width, bottom_right);
11809 }
11810 builder.line_to(next_top_right + curve_width);
11811 if self.corner_radius > Pixels::ZERO {
11812 builder.curve_to(next_top_right + curve_height, next_top_right);
11813 }
11814 }
11815 Ordering::Greater => {
11816 let curve_width = curve_width(bottom_right.x, next_top_right.x);
11817 builder.line_to(bottom_right - curve_height);
11818 if self.corner_radius > Pixels::ZERO {
11819 builder.curve_to(bottom_right + curve_width, bottom_right);
11820 }
11821 builder.line_to(next_top_right - curve_width);
11822 if self.corner_radius > Pixels::ZERO {
11823 builder.curve_to(next_top_right + curve_height, next_top_right);
11824 }
11825 }
11826 }
11827 } else {
11828 let curve_width = curve_width(line.start_x, line.end_x);
11829 builder.line_to(bottom_right - curve_height);
11830 if self.corner_radius > Pixels::ZERO {
11831 builder.curve_to(bottom_right - curve_width, bottom_right);
11832 }
11833
11834 let bottom_left = point(line.start_x, bottom_right.y);
11835 builder.line_to(bottom_left + curve_width);
11836 if self.corner_radius > Pixels::ZERO {
11837 builder.curve_to(bottom_left - curve_height, bottom_left);
11838 }
11839 }
11840 }
11841
11842 if first_line.start_x > last_line.start_x {
11843 let curve_width = curve_width(last_line.start_x, first_line.start_x);
11844 let second_top_left = point(last_line.start_x, start_y + self.line_height);
11845 builder.line_to(second_top_left + curve_height);
11846 if self.corner_radius > Pixels::ZERO {
11847 builder.curve_to(second_top_left + curve_width, second_top_left);
11848 }
11849 let first_bottom_left = point(first_line.start_x, second_top_left.y);
11850 builder.line_to(first_bottom_left - curve_width);
11851 if self.corner_radius > Pixels::ZERO {
11852 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
11853 }
11854 }
11855
11856 builder.line_to(first_top_left + curve_height);
11857 if self.corner_radius > Pixels::ZERO {
11858 builder.curve_to(first_top_left + top_curve_width, first_top_left);
11859 }
11860 builder.line_to(first_top_right - top_curve_width);
11861
11862 if let Ok(path) = builder.build() {
11863 window.paint_path(path, self.color);
11864 }
11865 }
11866}
11867
11868pub(crate) struct StickyHeader {
11869 pub item: language::OutlineItem<Anchor>,
11870 pub sticky_row: DisplayRow,
11871 pub start_point: Point,
11872 pub offset: ScrollOffset,
11873}
11874
11875enum CursorPopoverType {
11876 CodeContextMenu,
11877 EditPrediction,
11878}
11879
11880pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
11881 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
11882}
11883
11884fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
11885 (delta.pow(1.2) / 300.0).into()
11886}
11887
11888pub fn register_action<T: Action>(
11889 editor: &Entity<Editor>,
11890 window: &mut Window,
11891 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
11892) {
11893 let editor = editor.clone();
11894 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
11895 let action = action.downcast_ref().unwrap();
11896 if phase == DispatchPhase::Bubble {
11897 editor.update(cx, |editor, cx| {
11898 listener(editor, action, window, cx);
11899 })
11900 }
11901 })
11902}
11903
11904fn compute_auto_height_layout(
11905 editor: &mut Editor,
11906 min_lines: usize,
11907 max_lines: Option<usize>,
11908 known_dimensions: Size<Option<Pixels>>,
11909 available_width: AvailableSpace,
11910 window: &mut Window,
11911 cx: &mut Context<Editor>,
11912) -> Option<Size<Pixels>> {
11913 let width = known_dimensions.width.or({
11914 if let AvailableSpace::Definite(available_width) = available_width {
11915 Some(available_width)
11916 } else {
11917 None
11918 }
11919 })?;
11920 if let Some(height) = known_dimensions.height {
11921 return Some(size(width, height));
11922 }
11923
11924 let style = editor.style.as_ref().unwrap();
11925 let font_id = window.text_system().resolve_font(&style.text.font());
11926 let font_size = style.text.font_size.to_pixels(window.rem_size());
11927 let line_height = style.text.line_height_in_pixels(window.rem_size());
11928 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
11929
11930 let mut snapshot = editor.snapshot(window, cx);
11931 let gutter_dimensions = snapshot.gutter_dimensions(font_id, font_size, style, window, cx);
11932
11933 editor.gutter_dimensions = gutter_dimensions;
11934 let text_width = width - gutter_dimensions.width;
11935 let overscroll = size(em_width, px(0.));
11936
11937 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
11938 if !matches!(editor.soft_wrap_mode(cx), SoftWrap::None)
11939 && editor.set_wrap_width(Some(editor_width), cx)
11940 {
11941 snapshot = editor.snapshot(window, cx);
11942 }
11943
11944 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
11945
11946 let min_height = line_height * min_lines as f32;
11947 let content_height = scroll_height.max(min_height);
11948
11949 let final_height = if let Some(max_lines) = max_lines {
11950 let max_height = line_height * max_lines as f32;
11951 content_height.min(max_height)
11952 } else {
11953 content_height
11954 };
11955
11956 Some(size(width, final_height))
11957}
11958
11959#[cfg(test)]
11960mod tests {
11961 use super::*;
11962 use crate::{
11963 Editor, MultiBuffer, SelectionEffects,
11964 display_map::{BlockPlacement, BlockProperties},
11965 editor_tests::{init_test, update_test_language_settings},
11966 };
11967 use gpui::{TestAppContext, VisualTestContext};
11968 use language::language_settings;
11969 use log::info;
11970 use std::num::NonZeroU32;
11971 use util::test::sample_text;
11972
11973 #[gpui::test]
11974 async fn test_soft_wrap_editor_width_auto_height_editor(cx: &mut TestAppContext) {
11975 init_test(cx, |_| {});
11976
11977 let window = cx.add_window(|window, cx| {
11978 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
11979 let mut editor = Editor::new(
11980 EditorMode::AutoHeight {
11981 min_lines: 1,
11982 max_lines: None,
11983 },
11984 buffer,
11985 None,
11986 window,
11987 cx,
11988 );
11989 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
11990 editor
11991 });
11992 let cx = &mut VisualTestContext::from_window(*window, cx);
11993 let editor = window.root(cx).unwrap();
11994 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
11995
11996 for x in 1..=100 {
11997 let (_, state) = cx.draw(
11998 Default::default(),
11999 size(px(200. + 0.13 * x as f32), px(500.)),
12000 |_, _| EditorElement::new(&editor, style.clone()),
12001 );
12002
12003 assert!(
12004 state.position_map.scroll_max.x == 0.,
12005 "Soft wrapped editor should have no horizontal scrolling!"
12006 );
12007 }
12008 }
12009
12010 #[gpui::test]
12011 async fn test_soft_wrap_editor_width_full_editor(cx: &mut TestAppContext) {
12012 init_test(cx, |_| {});
12013
12014 let window = cx.add_window(|window, cx| {
12015 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
12016 let mut editor = Editor::new(EditorMode::full(), buffer, None, window, cx);
12017 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12018 editor
12019 });
12020 let cx = &mut VisualTestContext::from_window(*window, cx);
12021 let editor = window.root(cx).unwrap();
12022 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12023
12024 for x in 1..=100 {
12025 let (_, state) = cx.draw(
12026 Default::default(),
12027 size(px(200. + 0.13 * x as f32), px(500.)),
12028 |_, _| EditorElement::new(&editor, style.clone()),
12029 );
12030
12031 assert!(
12032 state.position_map.scroll_max.x == 0.,
12033 "Soft wrapped editor should have no horizontal scrolling!"
12034 );
12035 }
12036 }
12037
12038 #[gpui::test]
12039 fn test_layout_line_numbers(cx: &mut TestAppContext) {
12040 init_test(cx, |_| {});
12041 let window = cx.add_window(|window, cx| {
12042 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
12043 Editor::new(EditorMode::full(), buffer, None, window, cx)
12044 });
12045
12046 let editor = window.root(cx).unwrap();
12047 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12048 let line_height = window
12049 .update(cx, |_, window, _| {
12050 style.text.line_height_in_pixels(window.rem_size())
12051 })
12052 .unwrap();
12053 let element = EditorElement::new(&editor, style);
12054 let snapshot = window
12055 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
12056 .unwrap();
12057
12058 let layouts = cx
12059 .update_window(*window, |_, window, cx| {
12060 element.layout_line_numbers(
12061 None,
12062 GutterDimensions {
12063 left_padding: Pixels::ZERO,
12064 right_padding: Pixels::ZERO,
12065 width: px(30.0),
12066 margin: Pixels::ZERO,
12067 git_blame_entries_width: None,
12068 },
12069 line_height,
12070 gpui::Point::default(),
12071 DisplayRow(0)..DisplayRow(6),
12072 &(0..6)
12073 .map(|row| RowInfo {
12074 buffer_row: Some(row),
12075 ..Default::default()
12076 })
12077 .collect::<Vec<_>>(),
12078 &BTreeMap::default(),
12079 Some(DisplayRow(0)),
12080 &snapshot,
12081 window,
12082 cx,
12083 )
12084 })
12085 .unwrap();
12086 assert_eq!(layouts.len(), 6);
12087
12088 let relative_rows = window
12089 .update(cx, |editor, window, cx| {
12090 let snapshot = editor.snapshot(window, cx);
12091 snapshot.calculate_relative_line_numbers(
12092 &(DisplayRow(0)..DisplayRow(6)),
12093 DisplayRow(3),
12094 false,
12095 )
12096 })
12097 .unwrap();
12098 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12099 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12100 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12101 // current line has no relative number
12102 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12103 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12104 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12105
12106 // works if cursor is before screen
12107 let relative_rows = window
12108 .update(cx, |editor, window, cx| {
12109 let snapshot = editor.snapshot(window, cx);
12110 snapshot.calculate_relative_line_numbers(
12111 &(DisplayRow(3)..DisplayRow(6)),
12112 DisplayRow(1),
12113 false,
12114 )
12115 })
12116 .unwrap();
12117 assert_eq!(relative_rows.len(), 3);
12118 assert_eq!(relative_rows[&DisplayRow(3)], 2);
12119 assert_eq!(relative_rows[&DisplayRow(4)], 3);
12120 assert_eq!(relative_rows[&DisplayRow(5)], 4);
12121
12122 // works if cursor is after screen
12123 let relative_rows = window
12124 .update(cx, |editor, window, cx| {
12125 let snapshot = editor.snapshot(window, cx);
12126 snapshot.calculate_relative_line_numbers(
12127 &(DisplayRow(0)..DisplayRow(3)),
12128 DisplayRow(6),
12129 false,
12130 )
12131 })
12132 .unwrap();
12133 assert_eq!(relative_rows.len(), 3);
12134 assert_eq!(relative_rows[&DisplayRow(0)], 5);
12135 assert_eq!(relative_rows[&DisplayRow(1)], 4);
12136 assert_eq!(relative_rows[&DisplayRow(2)], 3);
12137
12138 const DELETED_LINE: u32 = 3;
12139 let layouts = cx
12140 .update_window(*window, |_, window, cx| {
12141 element.layout_line_numbers(
12142 None,
12143 GutterDimensions {
12144 left_padding: Pixels::ZERO,
12145 right_padding: Pixels::ZERO,
12146 width: px(30.0),
12147 margin: Pixels::ZERO,
12148 git_blame_entries_width: None,
12149 },
12150 line_height,
12151 gpui::Point::default(),
12152 DisplayRow(0)..DisplayRow(6),
12153 &(0..6)
12154 .map(|row| RowInfo {
12155 buffer_row: Some(row),
12156 diff_status: (row == DELETED_LINE).then(|| {
12157 DiffHunkStatus::deleted(
12158 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
12159 )
12160 }),
12161 ..Default::default()
12162 })
12163 .collect::<Vec<_>>(),
12164 &BTreeMap::default(),
12165 Some(DisplayRow(0)),
12166 &snapshot,
12167 window,
12168 cx,
12169 )
12170 })
12171 .unwrap();
12172 assert_eq!(layouts.len(), 5,);
12173 assert!(
12174 layouts.get(&MultiBufferRow(DELETED_LINE)).is_none(),
12175 "Deleted line should not have a line number"
12176 );
12177 }
12178
12179 #[gpui::test]
12180 fn test_layout_line_numbers_wrapping(cx: &mut TestAppContext) {
12181 init_test(cx, |_| {});
12182 let window = cx.add_window(|window, cx| {
12183 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
12184 Editor::new(EditorMode::full(), buffer, None, window, cx)
12185 });
12186
12187 update_test_language_settings(cx, |s| {
12188 s.defaults.preferred_line_length = Some(5_u32);
12189 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
12190 });
12191
12192 let editor = window.root(cx).unwrap();
12193 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12194 let line_height = window
12195 .update(cx, |_, window, _| {
12196 style.text.line_height_in_pixels(window.rem_size())
12197 })
12198 .unwrap();
12199 let element = EditorElement::new(&editor, style);
12200 let snapshot = window
12201 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
12202 .unwrap();
12203
12204 let layouts = cx
12205 .update_window(*window, |_, window, cx| {
12206 element.layout_line_numbers(
12207 None,
12208 GutterDimensions {
12209 left_padding: Pixels::ZERO,
12210 right_padding: Pixels::ZERO,
12211 width: px(30.0),
12212 margin: Pixels::ZERO,
12213 git_blame_entries_width: None,
12214 },
12215 line_height,
12216 gpui::Point::default(),
12217 DisplayRow(0)..DisplayRow(6),
12218 &(0..6)
12219 .map(|row| RowInfo {
12220 buffer_row: Some(row),
12221 ..Default::default()
12222 })
12223 .collect::<Vec<_>>(),
12224 &BTreeMap::default(),
12225 Some(DisplayRow(0)),
12226 &snapshot,
12227 window,
12228 cx,
12229 )
12230 })
12231 .unwrap();
12232 assert_eq!(layouts.len(), 3);
12233
12234 let relative_rows = window
12235 .update(cx, |editor, window, cx| {
12236 let snapshot = editor.snapshot(window, cx);
12237 snapshot.calculate_relative_line_numbers(
12238 &(DisplayRow(0)..DisplayRow(6)),
12239 DisplayRow(3),
12240 true,
12241 )
12242 })
12243 .unwrap();
12244
12245 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12246 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12247 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12248 // current line has no relative number
12249 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12250 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12251 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12252
12253 let layouts = cx
12254 .update_window(*window, |_, window, cx| {
12255 element.layout_line_numbers(
12256 None,
12257 GutterDimensions {
12258 left_padding: Pixels::ZERO,
12259 right_padding: Pixels::ZERO,
12260 width: px(30.0),
12261 margin: Pixels::ZERO,
12262 git_blame_entries_width: None,
12263 },
12264 line_height,
12265 gpui::Point::default(),
12266 DisplayRow(0)..DisplayRow(6),
12267 &(0..6)
12268 .map(|row| RowInfo {
12269 buffer_row: Some(row),
12270 diff_status: Some(DiffHunkStatus::deleted(
12271 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
12272 )),
12273 ..Default::default()
12274 })
12275 .collect::<Vec<_>>(),
12276 &BTreeMap::from_iter([(DisplayRow(0), LineHighlightSpec::default())]),
12277 Some(DisplayRow(0)),
12278 &snapshot,
12279 window,
12280 cx,
12281 )
12282 })
12283 .unwrap();
12284 assert!(
12285 layouts.is_empty(),
12286 "Deleted lines should have no line number"
12287 );
12288
12289 let relative_rows = window
12290 .update(cx, |editor, window, cx| {
12291 let snapshot = editor.snapshot(window, cx);
12292 snapshot.calculate_relative_line_numbers(
12293 &(DisplayRow(0)..DisplayRow(6)),
12294 DisplayRow(3),
12295 true,
12296 )
12297 })
12298 .unwrap();
12299
12300 // Deleted lines should still have relative numbers
12301 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12302 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12303 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12304 // current line, even if deleted, has no relative number
12305 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12306 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12307 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12308 }
12309
12310 #[gpui::test]
12311 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
12312 init_test(cx, |_| {});
12313
12314 let window = cx.add_window(|window, cx| {
12315 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
12316 Editor::new(EditorMode::full(), buffer, None, window, cx)
12317 });
12318 let cx = &mut VisualTestContext::from_window(*window, cx);
12319 let editor = window.root(cx).unwrap();
12320 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12321
12322 window
12323 .update(cx, |editor, window, cx| {
12324 editor.cursor_offset_on_selection = true;
12325 editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
12326 s.select_ranges([
12327 Point::new(0, 0)..Point::new(1, 0),
12328 Point::new(3, 2)..Point::new(3, 3),
12329 Point::new(5, 6)..Point::new(6, 0),
12330 ]);
12331 });
12332 })
12333 .unwrap();
12334
12335 let (_, state) = cx.draw(
12336 point(px(500.), px(500.)),
12337 size(px(500.), px(500.)),
12338 |_, _| EditorElement::new(&editor, style),
12339 );
12340
12341 assert_eq!(state.selections.len(), 1);
12342 let local_selections = &state.selections[0].1;
12343 assert_eq!(local_selections.len(), 3);
12344 // moves cursor back one line
12345 assert_eq!(
12346 local_selections[0].head,
12347 DisplayPoint::new(DisplayRow(0), 6)
12348 );
12349 assert_eq!(
12350 local_selections[0].range,
12351 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
12352 );
12353
12354 // moves cursor back one column
12355 assert_eq!(
12356 local_selections[1].range,
12357 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
12358 );
12359 assert_eq!(
12360 local_selections[1].head,
12361 DisplayPoint::new(DisplayRow(3), 2)
12362 );
12363
12364 // leaves cursor on the max point
12365 assert_eq!(
12366 local_selections[2].range,
12367 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
12368 );
12369 assert_eq!(
12370 local_selections[2].head,
12371 DisplayPoint::new(DisplayRow(6), 0)
12372 );
12373
12374 // active lines does not include 1 (even though the range of the selection does)
12375 assert_eq!(
12376 state.active_rows.keys().cloned().collect::<Vec<_>>(),
12377 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
12378 );
12379 }
12380
12381 #[gpui::test]
12382 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
12383 init_test(cx, |_| {});
12384
12385 let window = cx.add_window(|window, cx| {
12386 let buffer = MultiBuffer::build_simple("", cx);
12387 Editor::new(EditorMode::full(), buffer, None, window, cx)
12388 });
12389 let cx = &mut VisualTestContext::from_window(*window, cx);
12390 let editor = window.root(cx).unwrap();
12391 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12392 window
12393 .update(cx, |editor, window, cx| {
12394 editor.set_placeholder_text("hello", window, cx);
12395 editor.insert_blocks(
12396 [BlockProperties {
12397 style: BlockStyle::Fixed,
12398 placement: BlockPlacement::Above(Anchor::min()),
12399 height: Some(3),
12400 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
12401 priority: 0,
12402 }],
12403 None,
12404 cx,
12405 );
12406
12407 // Blur the editor so that it displays placeholder text.
12408 window.blur();
12409 })
12410 .unwrap();
12411
12412 let (_, state) = cx.draw(
12413 point(px(500.), px(500.)),
12414 size(px(500.), px(500.)),
12415 |_, _| EditorElement::new(&editor, style),
12416 );
12417 assert_eq!(state.position_map.line_layouts.len(), 4);
12418 assert_eq!(state.line_numbers.len(), 1);
12419 assert_eq!(
12420 state
12421 .line_numbers
12422 .get(&MultiBufferRow(0))
12423 .map(|line_number| line_number
12424 .segments
12425 .first()
12426 .unwrap()
12427 .shaped_line
12428 .text
12429 .as_ref()),
12430 Some("1")
12431 );
12432 }
12433
12434 #[gpui::test]
12435 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
12436 const TAB_SIZE: u32 = 4;
12437
12438 let input_text = "\t \t|\t| a b";
12439 let expected_invisibles = vec![
12440 Invisible::Tab {
12441 line_start_offset: 0,
12442 line_end_offset: TAB_SIZE as usize,
12443 },
12444 Invisible::Whitespace {
12445 line_offset: TAB_SIZE as usize,
12446 },
12447 Invisible::Tab {
12448 line_start_offset: TAB_SIZE as usize + 1,
12449 line_end_offset: TAB_SIZE as usize * 2,
12450 },
12451 Invisible::Tab {
12452 line_start_offset: TAB_SIZE as usize * 2 + 1,
12453 line_end_offset: TAB_SIZE as usize * 3,
12454 },
12455 Invisible::Whitespace {
12456 line_offset: TAB_SIZE as usize * 3 + 1,
12457 },
12458 Invisible::Whitespace {
12459 line_offset: TAB_SIZE as usize * 3 + 3,
12460 },
12461 ];
12462 assert_eq!(
12463 expected_invisibles.len(),
12464 input_text
12465 .chars()
12466 .filter(|initial_char| initial_char.is_whitespace())
12467 .count(),
12468 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
12469 );
12470
12471 for show_line_numbers in [true, false] {
12472 init_test(cx, |s| {
12473 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12474 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
12475 });
12476
12477 let actual_invisibles = collect_invisibles_from_new_editor(
12478 cx,
12479 EditorMode::full(),
12480 input_text,
12481 px(500.0),
12482 show_line_numbers,
12483 );
12484
12485 assert_eq!(expected_invisibles, actual_invisibles);
12486 }
12487 }
12488
12489 #[gpui::test]
12490 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
12491 init_test(cx, |s| {
12492 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12493 s.defaults.tab_size = NonZeroU32::new(4);
12494 });
12495
12496 for editor_mode_without_invisibles in [
12497 EditorMode::SingleLine,
12498 EditorMode::AutoHeight {
12499 min_lines: 1,
12500 max_lines: Some(100),
12501 },
12502 ] {
12503 for show_line_numbers in [true, false] {
12504 let invisibles = collect_invisibles_from_new_editor(
12505 cx,
12506 editor_mode_without_invisibles.clone(),
12507 "\t\t\t| | a b",
12508 px(500.0),
12509 show_line_numbers,
12510 );
12511 assert!(
12512 invisibles.is_empty(),
12513 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
12514 );
12515 }
12516 }
12517 }
12518
12519 #[gpui::test]
12520 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
12521 let tab_size = 4;
12522 let input_text = "a\tbcd ".repeat(9);
12523 let repeated_invisibles = [
12524 Invisible::Tab {
12525 line_start_offset: 1,
12526 line_end_offset: tab_size as usize,
12527 },
12528 Invisible::Whitespace {
12529 line_offset: tab_size as usize + 3,
12530 },
12531 Invisible::Whitespace {
12532 line_offset: tab_size as usize + 4,
12533 },
12534 Invisible::Whitespace {
12535 line_offset: tab_size as usize + 5,
12536 },
12537 Invisible::Whitespace {
12538 line_offset: tab_size as usize + 6,
12539 },
12540 Invisible::Whitespace {
12541 line_offset: tab_size as usize + 7,
12542 },
12543 ];
12544 let expected_invisibles = std::iter::once(repeated_invisibles)
12545 .cycle()
12546 .take(9)
12547 .flatten()
12548 .collect::<Vec<_>>();
12549 assert_eq!(
12550 expected_invisibles.len(),
12551 input_text
12552 .chars()
12553 .filter(|initial_char| initial_char.is_whitespace())
12554 .count(),
12555 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
12556 );
12557 info!("Expected invisibles: {expected_invisibles:?}");
12558
12559 init_test(cx, |_| {});
12560
12561 // Put the same string with repeating whitespace pattern into editors of various size,
12562 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
12563 let resize_step = 10.0;
12564 let mut editor_width = 200.0;
12565 while editor_width <= 1000.0 {
12566 for show_line_numbers in [true, false] {
12567 update_test_language_settings(cx, |s| {
12568 s.defaults.tab_size = NonZeroU32::new(tab_size);
12569 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12570 s.defaults.preferred_line_length = Some(editor_width as u32);
12571 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
12572 });
12573
12574 let actual_invisibles = collect_invisibles_from_new_editor(
12575 cx,
12576 EditorMode::full(),
12577 &input_text,
12578 px(editor_width),
12579 show_line_numbers,
12580 );
12581
12582 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
12583 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
12584 let mut i = 0;
12585 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
12586 i = actual_index;
12587 match expected_invisibles.get(i) {
12588 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
12589 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
12590 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
12591 _ => {
12592 panic!(
12593 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
12594 )
12595 }
12596 },
12597 None => {
12598 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
12599 }
12600 }
12601 }
12602 let missing_expected_invisibles = &expected_invisibles[i + 1..];
12603 assert!(
12604 missing_expected_invisibles.is_empty(),
12605 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
12606 );
12607
12608 editor_width += resize_step;
12609 }
12610 }
12611 }
12612
12613 fn collect_invisibles_from_new_editor(
12614 cx: &mut TestAppContext,
12615 editor_mode: EditorMode,
12616 input_text: &str,
12617 editor_width: Pixels,
12618 show_line_numbers: bool,
12619 ) -> Vec<Invisible> {
12620 info!(
12621 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
12622 f32::from(editor_width)
12623 );
12624 let window = cx.add_window(|window, cx| {
12625 let buffer = MultiBuffer::build_simple(input_text, cx);
12626 Editor::new(editor_mode, buffer, None, window, cx)
12627 });
12628 let cx = &mut VisualTestContext::from_window(*window, cx);
12629 let editor = window.root(cx).unwrap();
12630
12631 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12632 window
12633 .update(cx, |editor, _, cx| {
12634 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12635 editor.set_wrap_width(Some(editor_width), cx);
12636 editor.set_show_line_numbers(show_line_numbers, cx);
12637 })
12638 .unwrap();
12639 let (_, state) = cx.draw(
12640 point(px(500.), px(500.)),
12641 size(px(500.), px(500.)),
12642 |_, _| EditorElement::new(&editor, style),
12643 );
12644 state
12645 .position_map
12646 .line_layouts
12647 .iter()
12648 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
12649 .cloned()
12650 .collect()
12651 }
12652
12653 #[gpui::test]
12654 fn test_merge_overlapping_ranges() {
12655 let base_bg = Hsla::white();
12656 let color1 = Hsla {
12657 h: 0.0,
12658 s: 0.5,
12659 l: 0.5,
12660 a: 0.5,
12661 };
12662 let color2 = Hsla {
12663 h: 120.0,
12664 s: 0.5,
12665 l: 0.5,
12666 a: 0.5,
12667 };
12668
12669 let display_point = |col| DisplayPoint::new(DisplayRow(0), col);
12670 let cols = |v: &Vec<(Range<DisplayPoint>, Hsla)>| -> Vec<(u32, u32)> {
12671 v.iter()
12672 .map(|(r, _)| (r.start.column(), r.end.column()))
12673 .collect()
12674 };
12675
12676 // Test overlapping ranges blend colors
12677 let overlapping = vec![
12678 (display_point(5)..display_point(15), color1),
12679 (display_point(10)..display_point(20), color2),
12680 ];
12681 let result = EditorElement::merge_overlapping_ranges(overlapping, base_bg);
12682 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
12683
12684 // Test middle segment should have blended color
12685 let blended = Hsla::blend(Hsla::blend(base_bg, color1), color2);
12686 assert_eq!(result[1].1, blended);
12687
12688 // Test adjacent same-color ranges merge
12689 let adjacent_same = vec![
12690 (display_point(5)..display_point(10), color1),
12691 (display_point(10)..display_point(15), color1),
12692 ];
12693 let result = EditorElement::merge_overlapping_ranges(adjacent_same, base_bg);
12694 assert_eq!(cols(&result), vec![(5, 15)]);
12695
12696 // Test contained range splits
12697 let contained = vec![
12698 (display_point(5)..display_point(20), color1),
12699 (display_point(10)..display_point(15), color2),
12700 ];
12701 let result = EditorElement::merge_overlapping_ranges(contained, base_bg);
12702 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
12703
12704 // Test multiple overlaps split at every boundary
12705 let color3 = Hsla {
12706 h: 240.0,
12707 s: 0.5,
12708 l: 0.5,
12709 a: 0.5,
12710 };
12711 let complex = vec![
12712 (display_point(5)..display_point(12), color1),
12713 (display_point(8)..display_point(16), color2),
12714 (display_point(10)..display_point(14), color3),
12715 ];
12716 let result = EditorElement::merge_overlapping_ranges(complex, base_bg);
12717 assert_eq!(
12718 cols(&result),
12719 vec![(5, 8), (8, 10), (10, 12), (12, 14), (14, 16)]
12720 );
12721 }
12722
12723 #[gpui::test]
12724 fn test_bg_segments_per_row() {
12725 let base_bg = Hsla::white();
12726
12727 // Case A: selection spans three display rows: row 1 [5, end), full row 2, row 3 [0, 7)
12728 {
12729 let selection_color = Hsla {
12730 h: 200.0,
12731 s: 0.5,
12732 l: 0.5,
12733 a: 0.5,
12734 };
12735 let player_color = PlayerColor {
12736 cursor: selection_color,
12737 background: selection_color,
12738 selection: selection_color,
12739 };
12740
12741 let spanning_selection = SelectionLayout {
12742 head: DisplayPoint::new(DisplayRow(3), 7),
12743 cursor_shape: CursorShape::Bar,
12744 is_newest: true,
12745 is_local: true,
12746 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 7),
12747 active_rows: DisplayRow(1)..DisplayRow(4),
12748 user_name: None,
12749 };
12750
12751 let selections = vec![(player_color, vec![spanning_selection])];
12752 let result = EditorElement::bg_segments_per_row(
12753 DisplayRow(0)..DisplayRow(5),
12754 &selections,
12755 &[],
12756 base_bg,
12757 );
12758
12759 assert_eq!(result.len(), 5);
12760 assert!(result[0].is_empty());
12761 assert_eq!(result[1].len(), 1);
12762 assert_eq!(result[2].len(), 1);
12763 assert_eq!(result[3].len(), 1);
12764 assert!(result[4].is_empty());
12765
12766 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
12767 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
12768 assert_eq!(result[1][0].0.end.column(), u32::MAX);
12769 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
12770 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
12771 assert_eq!(result[2][0].0.end.column(), u32::MAX);
12772 assert_eq!(result[3][0].0.start, DisplayPoint::new(DisplayRow(3), 0));
12773 assert_eq!(result[3][0].0.end, DisplayPoint::new(DisplayRow(3), 7));
12774 }
12775
12776 // Case B: selection ends exactly at the start of row 3, excluding row 3
12777 {
12778 let selection_color = Hsla {
12779 h: 120.0,
12780 s: 0.5,
12781 l: 0.5,
12782 a: 0.5,
12783 };
12784 let player_color = PlayerColor {
12785 cursor: selection_color,
12786 background: selection_color,
12787 selection: selection_color,
12788 };
12789
12790 let selection = SelectionLayout {
12791 head: DisplayPoint::new(DisplayRow(2), 0),
12792 cursor_shape: CursorShape::Bar,
12793 is_newest: true,
12794 is_local: true,
12795 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 0),
12796 active_rows: DisplayRow(1)..DisplayRow(3),
12797 user_name: None,
12798 };
12799
12800 let selections = vec![(player_color, vec![selection])];
12801 let result = EditorElement::bg_segments_per_row(
12802 DisplayRow(0)..DisplayRow(4),
12803 &selections,
12804 &[],
12805 base_bg,
12806 );
12807
12808 assert_eq!(result.len(), 4);
12809 assert!(result[0].is_empty());
12810 assert_eq!(result[1].len(), 1);
12811 assert_eq!(result[2].len(), 1);
12812 assert!(result[3].is_empty());
12813
12814 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
12815 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
12816 assert_eq!(result[1][0].0.end.column(), u32::MAX);
12817 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
12818 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
12819 assert_eq!(result[2][0].0.end.column(), u32::MAX);
12820 }
12821 }
12822
12823 #[cfg(test)]
12824 fn generate_test_run(len: usize, color: Hsla) -> TextRun {
12825 TextRun {
12826 len,
12827 color,
12828 ..Default::default()
12829 }
12830 }
12831
12832 #[gpui::test]
12833 fn test_split_runs_by_bg_segments(cx: &mut gpui::TestAppContext) {
12834 init_test(cx, |_| {});
12835
12836 let dx = |start: u32, end: u32| {
12837 DisplayPoint::new(DisplayRow(0), start)..DisplayPoint::new(DisplayRow(0), end)
12838 };
12839
12840 let text_color = Hsla {
12841 h: 210.0,
12842 s: 0.1,
12843 l: 0.4,
12844 a: 1.0,
12845 };
12846 let bg_1 = Hsla {
12847 h: 30.0,
12848 s: 0.6,
12849 l: 0.8,
12850 a: 1.0,
12851 };
12852 let bg_2 = Hsla {
12853 h: 200.0,
12854 s: 0.6,
12855 l: 0.2,
12856 a: 1.0,
12857 };
12858 let min_contrast = 45.0;
12859 let adjusted_bg1 = ensure_minimum_contrast(text_color, bg_1, min_contrast);
12860 let adjusted_bg2 = ensure_minimum_contrast(text_color, bg_2, min_contrast);
12861
12862 // Case A: single run; disjoint segments inside the run
12863 {
12864 let runs = vec![generate_test_run(20, text_color)];
12865 let segs = vec![(dx(5, 10), bg_1), (dx(12, 16), bg_2)];
12866 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
12867 // Expected slices: [0,5) [5,10) [10,12) [12,16) [16,20)
12868 assert_eq!(
12869 out.iter().map(|r| r.len).collect::<Vec<_>>(),
12870 vec![5, 5, 2, 4, 4]
12871 );
12872 assert_eq!(out[0].color, text_color);
12873 assert_eq!(out[1].color, adjusted_bg1);
12874 assert_eq!(out[2].color, text_color);
12875 assert_eq!(out[3].color, adjusted_bg2);
12876 assert_eq!(out[4].color, text_color);
12877 }
12878
12879 // Case B: multiple runs; segment extends to end of line (u32::MAX)
12880 {
12881 let runs = vec![
12882 generate_test_run(8, text_color),
12883 generate_test_run(7, text_color),
12884 ];
12885 let segs = vec![(dx(6, u32::MAX), bg_1)];
12886 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
12887 // Expected slices across runs: [0,6) [6,8) | [0,7)
12888 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![6, 2, 7]);
12889 assert_eq!(out[0].color, text_color);
12890 assert_eq!(out[1].color, adjusted_bg1);
12891 assert_eq!(out[2].color, adjusted_bg1);
12892 }
12893
12894 // Case C: multi-byte characters
12895 {
12896 // for text: "Hello π δΈη!"
12897 let runs = vec![
12898 generate_test_run(5, text_color), // "Hello"
12899 generate_test_run(6, text_color), // " π "
12900 generate_test_run(6, text_color), // "δΈη"
12901 generate_test_run(1, text_color), // "!"
12902 ];
12903 // selecting "π δΈ"
12904 let segs = vec![(dx(6, 14), bg_1)];
12905 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
12906 // "Hello" | " " | "π " | "δΈ" | "η" | "!"
12907 assert_eq!(
12908 out.iter().map(|r| r.len).collect::<Vec<_>>(),
12909 vec![5, 1, 5, 3, 3, 1]
12910 );
12911 assert_eq!(out[0].color, text_color); // "Hello"
12912 assert_eq!(out[2].color, adjusted_bg1); // "π "
12913 assert_eq!(out[3].color, adjusted_bg1); // "δΈ"
12914 assert_eq!(out[4].color, text_color); // "η"
12915 assert_eq!(out[5].color, text_color); // "!"
12916 }
12917
12918 // Case D: split multiple consecutive text runs with segments
12919 {
12920 let segs = vec![
12921 (dx(2, 4), bg_1), // selecting "cd"
12922 (dx(4, 8), bg_2), // selecting "efgh"
12923 (dx(9, 11), bg_1), // selecting "jk"
12924 (dx(12, 16), bg_2), // selecting "mnop"
12925 (dx(18, 19), bg_1), // selecting "s"
12926 ];
12927
12928 // for text: "abcdef"
12929 let runs = vec![
12930 generate_test_run(2, text_color), // ab
12931 generate_test_run(4, text_color), // cdef
12932 ];
12933 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
12934 // new splits "ab", "cd", "ef"
12935 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![2, 2, 2]);
12936 assert_eq!(out[0].color, text_color);
12937 assert_eq!(out[1].color, adjusted_bg1);
12938 assert_eq!(out[2].color, adjusted_bg2);
12939
12940 // for text: "ghijklmn"
12941 let runs = vec![
12942 generate_test_run(3, text_color), // ghi
12943 generate_test_run(2, text_color), // jk
12944 generate_test_run(3, text_color), // lmn
12945 ];
12946 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 6); // 2 + 4 from first run
12947 // new splits "gh", "i", "jk", "l", "mn"
12948 assert_eq!(
12949 out.iter().map(|r| r.len).collect::<Vec<_>>(),
12950 vec![2, 1, 2, 1, 2]
12951 );
12952 assert_eq!(out[0].color, adjusted_bg2);
12953 assert_eq!(out[1].color, text_color);
12954 assert_eq!(out[2].color, adjusted_bg1);
12955 assert_eq!(out[3].color, text_color);
12956 assert_eq!(out[4].color, adjusted_bg2);
12957
12958 // for text: "opqrs"
12959 let runs = vec![
12960 generate_test_run(1, text_color), // o
12961 generate_test_run(4, text_color), // pqrs
12962 ];
12963 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 14); // 6 + 3 + 2 + 3 from first two runs
12964 // new splits "o", "p", "qr", "s"
12965 assert_eq!(
12966 out.iter().map(|r| r.len).collect::<Vec<_>>(),
12967 vec![1, 1, 2, 1]
12968 );
12969 assert_eq!(out[0].color, adjusted_bg2);
12970 assert_eq!(out[1].color, adjusted_bg2);
12971 assert_eq!(out[2].color, text_color);
12972 assert_eq!(out[3].color, adjusted_bg1);
12973 }
12974 }
12975}