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, pattern_slash, point, px, quad, relative, rgba, size,
53 solid_background, transparent_black,
54};
55use itertools::Itertools;
56use language::{IndentGuideSettings, language_settings::ShowWhitespaceSetting};
57use markdown::Markdown;
58use multi_buffer::{
59 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, ExpandInfo, MultiBufferPoint,
60 MultiBufferRow, RowInfo,
61};
62
63use edit_prediction_types::EditPredictionGranularity;
64use project::{
65 DisableAiSettings, Entry, ProjectPath,
66 debugger::breakpoint_store::{Breakpoint, BreakpointSessionState},
67 project_settings::ProjectSettings,
68};
69use settings::{
70 GitGutterSetting, GitHunkStyleSetting, IndentGuideBackgroundColoring, IndentGuideColoring,
71 RelativeLineNumbers, Settings,
72};
73use smallvec::{SmallVec, smallvec};
74use std::{
75 any::TypeId,
76 borrow::Cow,
77 cell::Cell,
78 cmp::{self, Ordering},
79 fmt::{self, Write},
80 iter, mem,
81 ops::{Deref, Range},
82 path::{self, Path},
83 rc::Rc,
84 sync::Arc,
85 time::{Duration, Instant},
86};
87use sum_tree::Bias;
88use text::{BufferId, SelectionGoal};
89use theme::{ActiveTheme, Appearance, BufferLineHeight, PlayerColor};
90use ui::utils::ensure_minimum_contrast;
91use ui::{
92 ButtonLike, ContextMenu, Indicator, KeyBinding, POPOVER_Y_PADDING, Tooltip, prelude::*,
93 right_click_menu, scrollbars::ShowScrollbar, text_for_keystroke,
94};
95use unicode_segmentation::UnicodeSegmentation;
96use util::post_inc;
97use util::{RangeExt, ResultExt, debug_panic};
98use workspace::{
99 CollaboratorId, ItemHandle, ItemSettings, OpenInTerminal, OpenTerminal, RevealInProjectPanel,
100 Workspace,
101 item::{BreadcrumbText, Item, ItemBufferKind},
102 notifications::NotifyTaskExt,
103};
104
105/// Determines what kinds of highlights should be applied to a lines background.
106#[derive(Clone, Copy, Default)]
107struct LineHighlightSpec {
108 selection: bool,
109 breakpoint: bool,
110 _active_stack_frame: bool,
111}
112
113#[derive(Debug)]
114struct SelectionLayout {
115 head: DisplayPoint,
116 cursor_shape: CursorShape,
117 is_newest: bool,
118 is_local: bool,
119 range: Range<DisplayPoint>,
120 active_rows: Range<DisplayRow>,
121 user_name: Option<SharedString>,
122}
123
124struct InlineBlameLayout {
125 element: AnyElement,
126 bounds: Bounds<Pixels>,
127 buffer_id: BufferId,
128 entry: BlameEntry,
129}
130
131impl SelectionLayout {
132 fn new<T: ToPoint + ToDisplayPoint + Clone>(
133 selection: Selection<T>,
134 line_mode: bool,
135 cursor_offset: bool,
136 cursor_shape: CursorShape,
137 map: &DisplaySnapshot,
138 is_newest: bool,
139 is_local: bool,
140 user_name: Option<SharedString>,
141 ) -> Self {
142 let point_selection = selection.map(|p| p.to_point(map.buffer_snapshot()));
143 let display_selection = point_selection.map(|p| p.to_display_point(map));
144 let mut range = display_selection.range();
145 let mut head = display_selection.head();
146 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
147 ..map.next_line_boundary(point_selection.end).1.row();
148
149 // vim visual line mode
150 if line_mode {
151 let point_range = map.expand_to_line(point_selection.range());
152 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
153 }
154
155 // any vim visual mode (including line mode)
156 if cursor_offset && !range.is_empty() && !selection.reversed {
157 if head.column() > 0 {
158 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left);
159 } else if head.row().0 > 0 && head != map.max_point() {
160 head = map.clip_point(
161 DisplayPoint::new(
162 head.row().previous_row(),
163 map.line_len(head.row().previous_row()),
164 ),
165 Bias::Left,
166 );
167 // updating range.end is a no-op unless you're cursor is
168 // on the newline containing a multi-buffer divider
169 // in which case the clip_point may have moved the head up
170 // an additional row.
171 range.end = DisplayPoint::new(head.row().next_row(), 0);
172 active_rows.end = head.row();
173 }
174 }
175
176 Self {
177 head,
178 cursor_shape,
179 is_newest,
180 is_local,
181 range,
182 active_rows,
183 user_name,
184 }
185 }
186}
187
188#[derive(Default)]
189struct RenderBlocksOutput {
190 blocks: Vec<BlockLayout>,
191 row_block_types: HashMap<DisplayRow, bool>,
192 resized_blocks: Option<HashMap<CustomBlockId, u32>>,
193}
194
195/// Data passed to overlay painters during the paint phase.
196pub struct OverlayPainterData<'a> {
197 pub editor: &'a Entity<Editor>,
198 pub snapshot: &'a EditorSnapshot,
199 pub scroll_position: gpui::Point<ScrollOffset>,
200 pub line_height: Pixels,
201 pub visible_row_range: Range<DisplayRow>,
202 pub hitbox: &'a Hitbox,
203}
204
205pub type OverlayPainter = Box<dyn FnOnce(OverlayPainterData<'_>, &mut Window, &mut App)>;
206
207pub struct EditorElement {
208 editor: Entity<Editor>,
209 style: EditorStyle,
210 split_side: Option<SplitSide>,
211 overlay_painter: Option<OverlayPainter>,
212}
213
214#[derive(Debug, Clone, Copy, PartialEq, Eq)]
215pub enum SplitSide {
216 Left,
217 Right,
218}
219
220impl EditorElement {
221 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
222
223 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
224 Self {
225 editor: editor.clone(),
226 style,
227 split_side: None,
228 overlay_painter: None,
229 }
230 }
231
232 pub fn set_split_side(&mut self, side: SplitSide) {
233 self.split_side = Some(side);
234 }
235
236 pub fn set_overlay_painter(&mut self, painter: OverlayPainter) {
237 self.overlay_painter = Some(painter);
238 }
239
240 fn should_show_buffer_headers(&self) -> bool {
241 self.split_side.is_none()
242 }
243
244 fn register_actions(&self, window: &mut Window, cx: &mut App) {
245 let editor = &self.editor;
246 editor.update(cx, |editor, cx| {
247 for action in editor.editor_actions.borrow().values() {
248 (action)(editor, window, cx)
249 }
250 });
251
252 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
253 crate::clangd_ext::apply_related_actions(editor, window, cx);
254
255 register_action(editor, window, Editor::open_context_menu);
256 register_action(editor, window, Editor::move_left);
257 register_action(editor, window, Editor::move_right);
258 register_action(editor, window, Editor::move_down);
259 register_action(editor, window, Editor::move_down_by_lines);
260 register_action(editor, window, Editor::select_down_by_lines);
261 register_action(editor, window, Editor::move_up);
262 register_action(editor, window, Editor::move_up_by_lines);
263 register_action(editor, window, Editor::select_up_by_lines);
264 register_action(editor, window, Editor::select_page_down);
265 register_action(editor, window, Editor::select_page_up);
266 register_action(editor, window, Editor::cancel);
267 register_action(editor, window, Editor::newline);
268 register_action(editor, window, Editor::newline_above);
269 register_action(editor, window, Editor::newline_below);
270 register_action(editor, window, Editor::backspace);
271 register_action(editor, window, Editor::blame_hover);
272 register_action(editor, window, Editor::delete);
273 register_action(editor, window, Editor::tab);
274 register_action(editor, window, Editor::next_snippet_tabstop);
275 register_action(editor, window, Editor::previous_snippet_tabstop);
276 register_action(editor, window, Editor::backtab);
277 register_action(editor, window, Editor::indent);
278 register_action(editor, window, Editor::outdent);
279 register_action(editor, window, Editor::autoindent);
280 register_action(editor, window, Editor::delete_line);
281 register_action(editor, window, Editor::join_lines);
282 register_action(editor, window, Editor::sort_lines_by_length);
283 register_action(editor, window, Editor::sort_lines_case_sensitive);
284 register_action(editor, window, Editor::sort_lines_case_insensitive);
285 register_action(editor, window, Editor::reverse_lines);
286 register_action(editor, window, Editor::shuffle_lines);
287 register_action(editor, window, Editor::rotate_selections_forward);
288 register_action(editor, window, Editor::rotate_selections_backward);
289 register_action(editor, window, Editor::convert_indentation_to_spaces);
290 register_action(editor, window, Editor::convert_indentation_to_tabs);
291 register_action(editor, window, Editor::convert_to_upper_case);
292 register_action(editor, window, Editor::convert_to_lower_case);
293 register_action(editor, window, Editor::convert_to_title_case);
294 register_action(editor, window, Editor::convert_to_snake_case);
295 register_action(editor, window, Editor::convert_to_kebab_case);
296 register_action(editor, window, Editor::convert_to_upper_camel_case);
297 register_action(editor, window, Editor::convert_to_lower_camel_case);
298 register_action(editor, window, Editor::convert_to_opposite_case);
299 register_action(editor, window, Editor::convert_to_sentence_case);
300 register_action(editor, window, Editor::toggle_case);
301 register_action(editor, window, Editor::convert_to_rot13);
302 register_action(editor, window, Editor::convert_to_rot47);
303 register_action(editor, window, Editor::delete_to_previous_word_start);
304 register_action(editor, window, Editor::delete_to_previous_subword_start);
305 register_action(editor, window, Editor::delete_to_next_word_end);
306 register_action(editor, window, Editor::delete_to_next_subword_end);
307 register_action(editor, window, Editor::delete_to_beginning_of_line);
308 register_action(editor, window, Editor::delete_to_end_of_line);
309 register_action(editor, window, Editor::cut_to_end_of_line);
310 register_action(editor, window, Editor::duplicate_line_up);
311 register_action(editor, window, Editor::duplicate_line_down);
312 register_action(editor, window, Editor::duplicate_selection);
313 register_action(editor, window, Editor::move_line_up);
314 register_action(editor, window, Editor::move_line_down);
315 register_action(editor, window, Editor::transpose);
316 register_action(editor, window, Editor::rewrap);
317 register_action(editor, window, Editor::cut);
318 register_action(editor, window, Editor::kill_ring_cut);
319 register_action(editor, window, Editor::kill_ring_yank);
320 register_action(editor, window, Editor::copy);
321 register_action(editor, window, Editor::copy_and_trim);
322 register_action(editor, window, Editor::diff_clipboard_with_selection);
323 register_action(editor, window, Editor::paste);
324 register_action(editor, window, Editor::undo);
325 register_action(editor, window, Editor::redo);
326 register_action(editor, window, Editor::move_page_up);
327 register_action(editor, window, Editor::move_page_down);
328 register_action(editor, window, Editor::next_screen);
329 register_action(editor, window, Editor::scroll_cursor_top);
330 register_action(editor, window, Editor::scroll_cursor_center);
331 register_action(editor, window, Editor::scroll_cursor_bottom);
332 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
333 register_action(editor, window, |editor, _: &LineDown, window, cx| {
334 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
335 });
336 register_action(editor, window, |editor, _: &LineUp, window, cx| {
337 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
338 });
339 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
340 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
341 });
342 register_action(
343 editor,
344 window,
345 |editor, HandleInput(text): &HandleInput, window, cx| {
346 if text.is_empty() {
347 return;
348 }
349 editor.handle_input(text, window, cx);
350 },
351 );
352 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
353 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
354 });
355 register_action(editor, window, |editor, _: &PageDown, window, cx| {
356 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
357 });
358 register_action(editor, window, |editor, _: &PageUp, window, cx| {
359 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
360 });
361 register_action(editor, window, Editor::move_to_previous_word_start);
362 register_action(editor, window, Editor::move_to_previous_subword_start);
363 register_action(editor, window, Editor::move_to_next_word_end);
364 register_action(editor, window, Editor::move_to_next_subword_end);
365 register_action(editor, window, Editor::move_to_beginning_of_line);
366 register_action(editor, window, Editor::move_to_end_of_line);
367 register_action(editor, window, Editor::move_to_start_of_paragraph);
368 register_action(editor, window, Editor::move_to_end_of_paragraph);
369 register_action(editor, window, Editor::move_to_beginning);
370 register_action(editor, window, Editor::move_to_end);
371 register_action(editor, window, Editor::move_to_start_of_excerpt);
372 register_action(editor, window, Editor::move_to_start_of_next_excerpt);
373 register_action(editor, window, Editor::move_to_end_of_excerpt);
374 register_action(editor, window, Editor::move_to_end_of_previous_excerpt);
375 register_action(editor, window, Editor::select_up);
376 register_action(editor, window, Editor::select_down);
377 register_action(editor, window, Editor::select_left);
378 register_action(editor, window, Editor::select_right);
379 register_action(editor, window, Editor::select_to_previous_word_start);
380 register_action(editor, window, Editor::select_to_previous_subword_start);
381 register_action(editor, window, Editor::select_to_next_word_end);
382 register_action(editor, window, Editor::select_to_next_subword_end);
383 register_action(editor, window, Editor::select_to_beginning_of_line);
384 register_action(editor, window, Editor::select_to_end_of_line);
385 register_action(editor, window, Editor::select_to_start_of_paragraph);
386 register_action(editor, window, Editor::select_to_end_of_paragraph);
387 register_action(editor, window, Editor::select_to_start_of_excerpt);
388 register_action(editor, window, Editor::select_to_start_of_next_excerpt);
389 register_action(editor, window, Editor::select_to_end_of_excerpt);
390 register_action(editor, window, Editor::select_to_end_of_previous_excerpt);
391 register_action(editor, window, Editor::select_to_beginning);
392 register_action(editor, window, Editor::select_to_end);
393 register_action(editor, window, Editor::select_all);
394 register_action(editor, window, |editor, action, window, cx| {
395 editor.select_all_matches(action, window, cx).log_err();
396 });
397 register_action(editor, window, Editor::select_line);
398 register_action(editor, window, Editor::split_selection_into_lines);
399 register_action(editor, window, Editor::add_selection_above);
400 register_action(editor, window, Editor::add_selection_below);
401 register_action(editor, window, Editor::insert_snippet_at_selections);
402 register_action(editor, window, |editor, action, window, cx| {
403 editor.select_next(action, window, cx).log_err();
404 });
405 register_action(editor, window, |editor, action, window, cx| {
406 editor.select_previous(action, window, cx).log_err();
407 });
408 register_action(editor, window, |editor, action, window, cx| {
409 editor.find_next_match(action, window, cx).log_err();
410 });
411 register_action(editor, window, |editor, action, window, cx| {
412 editor.find_previous_match(action, window, cx).log_err();
413 });
414 register_action(editor, window, Editor::toggle_comments);
415 register_action(editor, window, Editor::select_larger_syntax_node);
416 register_action(editor, window, Editor::select_smaller_syntax_node);
417 register_action(editor, window, Editor::select_next_syntax_node);
418 register_action(editor, window, Editor::select_prev_syntax_node);
419 register_action(
420 editor,
421 window,
422 Editor::select_to_start_of_larger_syntax_node,
423 );
424 register_action(editor, window, Editor::select_to_end_of_larger_syntax_node);
425 register_action(editor, window, Editor::unwrap_syntax_node);
426 register_action(editor, window, Editor::move_to_start_of_larger_syntax_node);
427 register_action(editor, window, Editor::move_to_end_of_larger_syntax_node);
428 register_action(editor, window, Editor::select_enclosing_symbol);
429 register_action(editor, window, Editor::move_to_enclosing_bracket);
430 register_action(editor, window, Editor::undo_selection);
431 register_action(editor, window, Editor::redo_selection);
432 if editor.read(cx).buffer_kind(cx) == ItemBufferKind::Multibuffer {
433 register_action(editor, window, Editor::expand_excerpts);
434 register_action(editor, window, Editor::expand_excerpts_up);
435 register_action(editor, window, Editor::expand_excerpts_down);
436 }
437 register_action(editor, window, Editor::go_to_diagnostic);
438 register_action(editor, window, Editor::go_to_prev_diagnostic);
439 register_action(editor, window, Editor::go_to_next_hunk);
440 register_action(editor, window, Editor::go_to_prev_hunk);
441 register_action(editor, window, Editor::go_to_next_document_highlight);
442 register_action(editor, window, Editor::go_to_prev_document_highlight);
443 register_action(editor, window, |editor, action, window, cx| {
444 editor
445 .go_to_definition(action, window, cx)
446 .detach_and_log_err(cx);
447 });
448 register_action(editor, window, |editor, action, window, cx| {
449 editor
450 .go_to_definition_split(action, window, cx)
451 .detach_and_log_err(cx);
452 });
453 register_action(editor, window, |editor, action, window, cx| {
454 editor
455 .go_to_declaration(action, window, cx)
456 .detach_and_log_err(cx);
457 });
458 register_action(editor, window, |editor, action, window, cx| {
459 editor
460 .go_to_declaration_split(action, window, cx)
461 .detach_and_log_err(cx);
462 });
463 register_action(editor, window, |editor, action, window, cx| {
464 editor
465 .go_to_implementation(action, window, cx)
466 .detach_and_log_err(cx);
467 });
468 register_action(editor, window, |editor, action, window, cx| {
469 editor
470 .go_to_implementation_split(action, window, cx)
471 .detach_and_log_err(cx);
472 });
473 register_action(editor, window, |editor, action, window, cx| {
474 editor
475 .go_to_type_definition(action, window, cx)
476 .detach_and_log_err(cx);
477 });
478 register_action(editor, window, |editor, action, window, cx| {
479 editor
480 .go_to_type_definition_split(action, window, cx)
481 .detach_and_log_err(cx);
482 });
483 register_action(editor, window, Editor::open_url);
484 register_action(editor, window, Editor::open_selected_filename);
485 register_action(editor, window, Editor::fold);
486 register_action(editor, window, Editor::fold_at_level);
487 register_action(editor, window, Editor::fold_at_level_1);
488 register_action(editor, window, Editor::fold_at_level_2);
489 register_action(editor, window, Editor::fold_at_level_3);
490 register_action(editor, window, Editor::fold_at_level_4);
491 register_action(editor, window, Editor::fold_at_level_5);
492 register_action(editor, window, Editor::fold_at_level_6);
493 register_action(editor, window, Editor::fold_at_level_7);
494 register_action(editor, window, Editor::fold_at_level_8);
495 register_action(editor, window, Editor::fold_at_level_9);
496 register_action(editor, window, Editor::fold_all);
497 register_action(editor, window, Editor::fold_function_bodies);
498 register_action(editor, window, Editor::fold_recursive);
499 register_action(editor, window, Editor::toggle_fold);
500 register_action(editor, window, Editor::toggle_fold_recursive);
501 register_action(editor, window, Editor::toggle_fold_all);
502 register_action(editor, window, Editor::unfold_lines);
503 register_action(editor, window, Editor::unfold_recursive);
504 register_action(editor, window, Editor::unfold_all);
505 register_action(editor, window, Editor::fold_selected_ranges);
506 register_action(editor, window, Editor::set_mark);
507 register_action(editor, window, Editor::swap_selection_ends);
508 register_action(editor, window, Editor::show_completions);
509 register_action(editor, window, Editor::show_word_completions);
510 register_action(editor, window, Editor::toggle_code_actions);
511 register_action(editor, window, Editor::open_excerpts);
512 register_action(editor, window, Editor::open_excerpts_in_split);
513 register_action(editor, window, Editor::toggle_soft_wrap);
514 register_action(editor, window, Editor::toggle_tab_bar);
515 register_action(editor, window, Editor::toggle_line_numbers);
516 register_action(editor, window, Editor::toggle_relative_line_numbers);
517 register_action(editor, window, Editor::toggle_indent_guides);
518 register_action(editor, window, Editor::toggle_inlay_hints);
519 register_action(editor, window, Editor::toggle_edit_predictions);
520 if editor.read(cx).diagnostics_enabled() {
521 register_action(editor, window, Editor::toggle_diagnostics);
522 }
523 if editor.read(cx).inline_diagnostics_enabled() {
524 register_action(editor, window, Editor::toggle_inline_diagnostics);
525 }
526 if editor.read(cx).supports_minimap(cx) {
527 register_action(editor, window, Editor::toggle_minimap);
528 }
529 register_action(editor, window, hover_popover::hover);
530 register_action(editor, window, Editor::reveal_in_finder);
531 register_action(editor, window, Editor::copy_path);
532 register_action(editor, window, Editor::copy_relative_path);
533 register_action(editor, window, Editor::copy_file_name);
534 register_action(editor, window, Editor::copy_file_name_without_extension);
535 register_action(editor, window, Editor::copy_highlight_json);
536 register_action(editor, window, Editor::copy_permalink_to_line);
537 register_action(editor, window, Editor::open_permalink_to_line);
538 register_action(editor, window, Editor::copy_file_location);
539 register_action(editor, window, Editor::toggle_git_blame);
540 register_action(editor, window, Editor::toggle_git_blame_inline);
541 register_action(editor, window, Editor::open_git_blame_commit);
542 register_action(editor, window, Editor::toggle_selected_diff_hunks);
543 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
544 register_action(editor, window, Editor::stage_and_next);
545 register_action(editor, window, Editor::unstage_and_next);
546 register_action(editor, window, Editor::expand_all_diff_hunks);
547 register_action(editor, window, Editor::collapse_all_diff_hunks);
548 register_action(editor, window, Editor::toggle_review_comments_expanded);
549 register_action(editor, window, Editor::submit_diff_review_comment_action);
550 register_action(editor, window, Editor::edit_review_comment);
551 register_action(editor, window, Editor::delete_review_comment);
552 register_action(editor, window, Editor::confirm_edit_review_comment_action);
553 register_action(editor, window, Editor::cancel_edit_review_comment_action);
554 register_action(editor, window, Editor::go_to_previous_change);
555 register_action(editor, window, Editor::go_to_next_change);
556 register_action(editor, window, Editor::go_to_prev_reference);
557 register_action(editor, window, Editor::go_to_next_reference);
558
559 register_action(editor, window, |editor, action, window, cx| {
560 if let Some(task) = editor.format(action, window, cx) {
561 task.detach_and_notify_err(window, cx);
562 } else {
563 cx.propagate();
564 }
565 });
566 register_action(editor, window, |editor, action, window, cx| {
567 if let Some(task) = editor.format_selections(action, window, cx) {
568 task.detach_and_notify_err(window, cx);
569 } else {
570 cx.propagate();
571 }
572 });
573 register_action(editor, window, |editor, action, window, cx| {
574 if let Some(task) = editor.organize_imports(action, window, cx) {
575 task.detach_and_notify_err(window, cx);
576 } else {
577 cx.propagate();
578 }
579 });
580 register_action(editor, window, Editor::restart_language_server);
581 register_action(editor, window, Editor::stop_language_server);
582 register_action(editor, window, Editor::show_character_palette);
583 register_action(editor, window, |editor, action, window, cx| {
584 if let Some(task) = editor.confirm_completion(action, window, cx) {
585 task.detach_and_notify_err(window, cx);
586 } else {
587 cx.propagate();
588 }
589 });
590 register_action(editor, window, |editor, action, window, cx| {
591 if let Some(task) = editor.confirm_completion_replace(action, window, cx) {
592 task.detach_and_notify_err(window, cx);
593 } else {
594 cx.propagate();
595 }
596 });
597 register_action(editor, window, |editor, action, window, cx| {
598 if let Some(task) = editor.confirm_completion_insert(action, window, cx) {
599 task.detach_and_notify_err(window, cx);
600 } else {
601 cx.propagate();
602 }
603 });
604 register_action(editor, window, |editor, action, window, cx| {
605 if let Some(task) = editor.compose_completion(action, window, cx) {
606 task.detach_and_notify_err(window, cx);
607 } else {
608 cx.propagate();
609 }
610 });
611 register_action(editor, window, |editor, action, window, cx| {
612 if let Some(task) = editor.confirm_code_action(action, window, cx) {
613 task.detach_and_notify_err(window, cx);
614 } else {
615 cx.propagate();
616 }
617 });
618 register_action(editor, window, |editor, action, window, cx| {
619 if let Some(task) = editor.rename(action, window, cx) {
620 task.detach_and_notify_err(window, cx);
621 } else {
622 cx.propagate();
623 }
624 });
625 register_action(editor, window, |editor, action, window, cx| {
626 if let Some(task) = editor.confirm_rename(action, window, cx) {
627 task.detach_and_notify_err(window, cx);
628 } else {
629 cx.propagate();
630 }
631 });
632 register_action(editor, window, |editor, action, window, cx| {
633 if let Some(task) = editor.find_all_references(action, window, cx) {
634 task.detach_and_log_err(cx);
635 } else {
636 cx.propagate();
637 }
638 });
639 register_action(editor, window, Editor::show_signature_help);
640 register_action(editor, window, Editor::signature_help_prev);
641 register_action(editor, window, Editor::signature_help_next);
642 register_action(editor, window, Editor::show_edit_prediction);
643 register_action(editor, window, Editor::context_menu_first);
644 register_action(editor, window, Editor::context_menu_prev);
645 register_action(editor, window, Editor::context_menu_next);
646 register_action(editor, window, Editor::context_menu_last);
647 register_action(editor, window, Editor::display_cursor_names);
648 register_action(editor, window, Editor::unique_lines_case_insensitive);
649 register_action(editor, window, Editor::unique_lines_case_sensitive);
650 register_action(editor, window, Editor::accept_next_word_edit_prediction);
651 register_action(editor, window, Editor::accept_next_line_edit_prediction);
652 register_action(editor, window, Editor::accept_edit_prediction);
653 register_action(editor, window, Editor::restore_file);
654 register_action(editor, window, Editor::git_restore);
655 register_action(editor, window, Editor::apply_all_diff_hunks);
656 register_action(editor, window, Editor::apply_selected_diff_hunks);
657 register_action(editor, window, Editor::open_active_item_in_terminal);
658 register_action(editor, window, Editor::reload_file);
659 register_action(editor, window, Editor::spawn_nearest_task);
660 register_action(editor, window, Editor::insert_uuid_v4);
661 register_action(editor, window, Editor::insert_uuid_v7);
662 register_action(editor, window, Editor::open_selections_in_multibuffer);
663 register_action(editor, window, Editor::toggle_breakpoint);
664 register_action(editor, window, Editor::edit_log_breakpoint);
665 register_action(editor, window, Editor::enable_breakpoint);
666 register_action(editor, window, Editor::disable_breakpoint);
667 register_action(editor, window, Editor::toggle_read_only);
668 if editor.read(cx).enable_wrap_selections_in_tag(cx) {
669 register_action(editor, window, Editor::wrap_selections_in_tag);
670 }
671 }
672
673 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
674 let position_map = layout.position_map.clone();
675 window.on_key_event({
676 let editor = self.editor.clone();
677 move |event: &ModifiersChangedEvent, phase, window, cx| {
678 if phase != DispatchPhase::Bubble {
679 return;
680 }
681 editor.update(cx, |editor, cx| {
682 let inlay_hint_settings = inlay_hint_settings(
683 editor.selections.newest_anchor().head(),
684 &editor.buffer.read(cx).snapshot(cx),
685 cx,
686 );
687
688 if let Some(inlay_modifiers) = inlay_hint_settings
689 .toggle_on_modifiers_press
690 .as_ref()
691 .filter(|modifiers| modifiers.modified())
692 {
693 editor.refresh_inlay_hints(
694 InlayHintRefreshReason::ModifiersChanged(
695 inlay_modifiers == &event.modifiers,
696 ),
697 cx,
698 );
699 }
700
701 if editor.hover_state.focused(window, cx) {
702 return;
703 }
704
705 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
706 })
707 }
708 });
709 }
710
711 fn mouse_left_down(
712 editor: &mut Editor,
713 event: &MouseDownEvent,
714 position_map: &PositionMap,
715 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
716 window: &mut Window,
717 cx: &mut Context<Editor>,
718 ) {
719 if window.default_prevented() {
720 return;
721 }
722
723 let text_hitbox = &position_map.text_hitbox;
724 let gutter_hitbox = &position_map.gutter_hitbox;
725 let point_for_position = position_map.point_for_position(event.position);
726 let mut click_count = event.click_count;
727 let mut modifiers = event.modifiers;
728
729 if let Some(hovered_hunk) =
730 position_map
731 .display_hunks
732 .iter()
733 .find_map(|(hunk, hunk_hitbox)| match hunk {
734 DisplayDiffHunk::Folded { .. } => None,
735 DisplayDiffHunk::Unfolded {
736 multi_buffer_range, ..
737 } => hunk_hitbox
738 .as_ref()
739 .is_some_and(|hitbox| hitbox.is_hovered(window))
740 .then(|| multi_buffer_range.clone()),
741 })
742 {
743 editor.toggle_single_diff_hunk(hovered_hunk, cx);
744 cx.notify();
745 return;
746 } else if gutter_hitbox.is_hovered(window) {
747 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
748 } else if !text_hitbox.is_hovered(window) {
749 return;
750 }
751
752 if EditorSettings::get_global(cx)
753 .drag_and_drop_selection
754 .enabled
755 && click_count == 1
756 && !modifiers.shift
757 {
758 let newest_anchor = editor.selections.newest_anchor();
759 let snapshot = editor.snapshot(window, cx);
760 let selection = newest_anchor.map(|anchor| anchor.to_display_point(&snapshot));
761 if point_for_position.intersects_selection(&selection) {
762 editor.selection_drag_state = SelectionDragState::ReadyToDrag {
763 selection: newest_anchor.clone(),
764 click_position: event.position,
765 mouse_down_time: Instant::now(),
766 };
767 cx.stop_propagation();
768 return;
769 }
770 }
771
772 let is_singleton = editor.buffer().read(cx).is_singleton();
773
774 if click_count == 2 && !is_singleton {
775 match EditorSettings::get_global(cx).double_click_in_multibuffer {
776 DoubleClickInMultibuffer::Select => {
777 // do nothing special on double click, all selection logic is below
778 }
779 DoubleClickInMultibuffer::Open => {
780 if modifiers.alt {
781 // if double click is made with alt, pretend it's a regular double click without opening and alt,
782 // and run the selection logic.
783 modifiers.alt = false;
784 } else {
785 let scroll_position_row = position_map.scroll_position.y;
786 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
787 / position_map.line_height)
788 as f64
789 + position_map.scroll_position.y)
790 as u32;
791 let multi_buffer_row = position_map
792 .snapshot
793 .display_point_to_point(
794 DisplayPoint::new(DisplayRow(display_row), 0),
795 Bias::Right,
796 )
797 .row;
798 let line_offset_from_top = display_row - scroll_position_row as u32;
799 // if double click is made without alt, open the corresponding excerp
800 editor.open_excerpts_common(
801 Some(JumpData::MultiBufferRow {
802 row: MultiBufferRow(multi_buffer_row),
803 line_offset_from_top,
804 }),
805 false,
806 window,
807 cx,
808 );
809 return;
810 }
811 }
812 }
813 }
814
815 if !is_singleton {
816 let display_row = (ScrollPixelOffset::from(
817 (event.position - gutter_hitbox.bounds.origin).y / position_map.line_height,
818 ) + position_map.scroll_position.y) as u32;
819 let multi_buffer_row = position_map
820 .snapshot
821 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
822 .row;
823 if line_numbers
824 .get(&MultiBufferRow(multi_buffer_row))
825 .is_some_and(|line_layout| {
826 line_layout.segments.iter().any(|segment| {
827 segment
828 .hitbox
829 .as_ref()
830 .is_some_and(|hitbox| hitbox.contains(&event.position))
831 })
832 })
833 {
834 let line_offset_from_top = display_row - position_map.scroll_position.y as u32;
835
836 editor.open_excerpts_common(
837 Some(JumpData::MultiBufferRow {
838 row: MultiBufferRow(multi_buffer_row),
839 line_offset_from_top,
840 }),
841 modifiers.alt,
842 window,
843 cx,
844 );
845 cx.stop_propagation();
846 return;
847 }
848 }
849
850 let position = point_for_position.previous_valid;
851 if let Some(mode) = Editor::columnar_selection_mode(&modifiers, cx) {
852 editor.select(
853 SelectPhase::BeginColumnar {
854 position,
855 reset: match mode {
856 ColumnarMode::FromMouse => true,
857 ColumnarMode::FromSelection => false,
858 },
859 mode,
860 goal_column: point_for_position.exact_unclipped.column(),
861 },
862 window,
863 cx,
864 );
865 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
866 {
867 editor.select(
868 SelectPhase::Extend {
869 position,
870 click_count,
871 },
872 window,
873 cx,
874 );
875 } else {
876 editor.select(
877 SelectPhase::Begin {
878 position,
879 add: Editor::is_alt_pressed(&modifiers, cx),
880 click_count,
881 },
882 window,
883 cx,
884 );
885 }
886 cx.stop_propagation();
887 }
888
889 fn mouse_right_down(
890 editor: &mut Editor,
891 event: &MouseDownEvent,
892 position_map: &PositionMap,
893 window: &mut Window,
894 cx: &mut Context<Editor>,
895 ) {
896 if position_map.gutter_hitbox.is_hovered(window) {
897 let gutter_right_padding = editor.gutter_dimensions.right_padding;
898 let hitbox = &position_map.gutter_hitbox;
899
900 if event.position.x <= hitbox.bounds.right() - gutter_right_padding {
901 let point_for_position = position_map.point_for_position(event.position);
902 editor.set_breakpoint_context_menu(
903 point_for_position.previous_valid.row(),
904 None,
905 event.position,
906 window,
907 cx,
908 );
909 }
910 return;
911 }
912
913 if !position_map.text_hitbox.is_hovered(window) {
914 return;
915 }
916
917 let point_for_position = position_map.point_for_position(event.position);
918 mouse_context_menu::deploy_context_menu(
919 editor,
920 Some(event.position),
921 point_for_position.previous_valid,
922 window,
923 cx,
924 );
925 cx.stop_propagation();
926 }
927
928 fn mouse_middle_down(
929 editor: &mut Editor,
930 event: &MouseDownEvent,
931 position_map: &PositionMap,
932 window: &mut Window,
933 cx: &mut Context<Editor>,
934 ) {
935 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
936 return;
937 }
938
939 let point_for_position = position_map.point_for_position(event.position);
940 let position = point_for_position.previous_valid;
941
942 editor.select(
943 SelectPhase::BeginColumnar {
944 position,
945 reset: true,
946 mode: ColumnarMode::FromMouse,
947 goal_column: point_for_position.exact_unclipped.column(),
948 },
949 window,
950 cx,
951 );
952 }
953
954 fn mouse_up(
955 editor: &mut Editor,
956 event: &MouseUpEvent,
957 position_map: &PositionMap,
958 window: &mut Window,
959 cx: &mut Context<Editor>,
960 ) {
961 // Handle diff review drag completion
962 if editor.diff_review_drag_state.is_some() {
963 editor.end_diff_review_drag(window, cx);
964 cx.stop_propagation();
965 return;
966 }
967
968 let text_hitbox = &position_map.text_hitbox;
969 let end_selection = editor.has_pending_selection();
970 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
971 let point_for_position = position_map.point_for_position(event.position);
972
973 match editor.selection_drag_state {
974 SelectionDragState::ReadyToDrag {
975 selection: _,
976 ref click_position,
977 mouse_down_time: _,
978 } => {
979 if event.position == *click_position {
980 editor.select(
981 SelectPhase::Begin {
982 position: point_for_position.previous_valid,
983 add: false,
984 click_count: 1, // ready to drag state only occurs on click count 1
985 },
986 window,
987 cx,
988 );
989 editor.selection_drag_state = SelectionDragState::None;
990 cx.stop_propagation();
991 return;
992 } else {
993 debug_panic!("drag state can never be in ready state after drag")
994 }
995 }
996 SelectionDragState::Dragging { ref selection, .. } => {
997 let snapshot = editor.snapshot(window, cx);
998 let selection_display = selection.map(|anchor| anchor.to_display_point(&snapshot));
999 if !point_for_position.intersects_selection(&selection_display)
1000 && text_hitbox.is_hovered(window)
1001 {
1002 let is_cut = !(cfg!(target_os = "macos") && event.modifiers.alt
1003 || cfg!(not(target_os = "macos")) && event.modifiers.control);
1004 editor.move_selection_on_drop(
1005 &selection.clone(),
1006 point_for_position.previous_valid,
1007 is_cut,
1008 window,
1009 cx,
1010 );
1011 }
1012 editor.selection_drag_state = SelectionDragState::None;
1013 cx.stop_propagation();
1014 cx.notify();
1015 return;
1016 }
1017 _ => {}
1018 }
1019
1020 if end_selection {
1021 editor.select(SelectPhase::End, window, cx);
1022 }
1023
1024 if end_selection && pending_nonempty_selections {
1025 cx.stop_propagation();
1026 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
1027 && event.button == MouseButton::Middle
1028 {
1029 #[allow(
1030 clippy::collapsible_if,
1031 clippy::needless_return,
1032 reason = "The cfg-block below makes this a false positive"
1033 )]
1034 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
1035 return;
1036 }
1037
1038 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
1039 if EditorSettings::get_global(cx).middle_click_paste {
1040 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
1041 let point_for_position = position_map.point_for_position(event.position);
1042 let position = point_for_position.previous_valid;
1043
1044 editor.select(
1045 SelectPhase::Begin {
1046 position,
1047 add: false,
1048 click_count: 1,
1049 },
1050 window,
1051 cx,
1052 );
1053 editor.insert(&text, window, cx);
1054 }
1055 cx.stop_propagation()
1056 }
1057 }
1058 }
1059
1060 fn click(
1061 editor: &mut Editor,
1062 event: &ClickEvent,
1063 position_map: &PositionMap,
1064 window: &mut Window,
1065 cx: &mut Context<Editor>,
1066 ) {
1067 let text_hitbox = &position_map.text_hitbox;
1068 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
1069
1070 let hovered_link_modifier = Editor::is_cmd_or_ctrl_pressed(&event.modifiers(), cx);
1071 let mouse_down_hovered_link_modifier = if let ClickEvent::Mouse(mouse_event) = event {
1072 Editor::is_cmd_or_ctrl_pressed(&mouse_event.down.modifiers, cx)
1073 } else {
1074 true
1075 };
1076
1077 if let Some(mouse_position) = event.mouse_position()
1078 && !pending_nonempty_selections
1079 && hovered_link_modifier
1080 && mouse_down_hovered_link_modifier
1081 && text_hitbox.is_hovered(window)
1082 && !matches!(
1083 editor.selection_drag_state,
1084 SelectionDragState::Dragging { .. }
1085 )
1086 {
1087 let point = position_map.point_for_position(mouse_position);
1088 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
1089 editor.selection_drag_state = SelectionDragState::None;
1090
1091 cx.stop_propagation();
1092 }
1093 }
1094
1095 fn pressure_click(
1096 editor: &mut Editor,
1097 event: &MousePressureEvent,
1098 position_map: &PositionMap,
1099 window: &mut Window,
1100 cx: &mut Context<Editor>,
1101 ) {
1102 let text_hitbox = &position_map.text_hitbox;
1103 let force_click_possible =
1104 matches!(editor.prev_pressure_stage, Some(PressureStage::Normal))
1105 && event.stage == PressureStage::Force;
1106
1107 editor.prev_pressure_stage = Some(event.stage);
1108
1109 if force_click_possible && text_hitbox.is_hovered(window) {
1110 let point = position_map.point_for_position(event.position);
1111 editor.handle_click_hovered_link(point, event.modifiers, window, cx);
1112 editor.selection_drag_state = SelectionDragState::None;
1113 cx.stop_propagation();
1114 }
1115 }
1116
1117 fn mouse_dragged(
1118 editor: &mut Editor,
1119 event: &MouseMoveEvent,
1120 position_map: &PositionMap,
1121 window: &mut Window,
1122 cx: &mut Context<Editor>,
1123 ) {
1124 if !editor.has_pending_selection()
1125 && matches!(editor.selection_drag_state, SelectionDragState::None)
1126 {
1127 return;
1128 }
1129
1130 let point_for_position = position_map.point_for_position(event.position);
1131 let text_hitbox = &position_map.text_hitbox;
1132
1133 let scroll_delta = {
1134 let text_bounds = text_hitbox.bounds;
1135 let mut scroll_delta = gpui::Point::<f32>::default();
1136 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
1137 let top = text_bounds.origin.y + vertical_margin;
1138 let bottom = text_bounds.bottom_left().y - vertical_margin;
1139 if event.position.y < top {
1140 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
1141 }
1142 if event.position.y > bottom {
1143 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
1144 }
1145
1146 // We need horizontal width of text
1147 let style = editor.style.clone().unwrap_or_default();
1148 let font_id = window.text_system().resolve_font(&style.text.font());
1149 let font_size = style.text.font_size.to_pixels(window.rem_size());
1150 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
1151
1152 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
1153
1154 let scroll_space: Pixels = scroll_margin_x * em_width;
1155
1156 let left = text_bounds.origin.x + scroll_space;
1157 let right = text_bounds.top_right().x - scroll_space;
1158
1159 if event.position.x < left {
1160 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
1161 }
1162 if event.position.x > right {
1163 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
1164 }
1165 scroll_delta
1166 };
1167
1168 if !editor.has_pending_selection() {
1169 let drop_anchor = position_map
1170 .snapshot
1171 .display_point_to_anchor(point_for_position.previous_valid, Bias::Left);
1172 match editor.selection_drag_state {
1173 SelectionDragState::Dragging {
1174 ref mut drop_cursor,
1175 ref mut hide_drop_cursor,
1176 ..
1177 } => {
1178 drop_cursor.start = drop_anchor;
1179 drop_cursor.end = drop_anchor;
1180 *hide_drop_cursor = !text_hitbox.is_hovered(window);
1181 editor.apply_scroll_delta(scroll_delta, window, cx);
1182 cx.notify();
1183 }
1184 SelectionDragState::ReadyToDrag {
1185 ref selection,
1186 ref click_position,
1187 ref mouse_down_time,
1188 } => {
1189 let drag_and_drop_delay = Duration::from_millis(
1190 EditorSettings::get_global(cx)
1191 .drag_and_drop_selection
1192 .delay
1193 .0,
1194 );
1195 if mouse_down_time.elapsed() >= drag_and_drop_delay {
1196 let drop_cursor = Selection {
1197 id: post_inc(&mut editor.selections.next_selection_id()),
1198 start: drop_anchor,
1199 end: drop_anchor,
1200 reversed: false,
1201 goal: SelectionGoal::None,
1202 };
1203 editor.selection_drag_state = SelectionDragState::Dragging {
1204 selection: selection.clone(),
1205 drop_cursor,
1206 hide_drop_cursor: false,
1207 };
1208 editor.apply_scroll_delta(scroll_delta, window, cx);
1209 cx.notify();
1210 } else {
1211 let click_point = position_map.point_for_position(*click_position);
1212 editor.selection_drag_state = SelectionDragState::None;
1213 editor.select(
1214 SelectPhase::Begin {
1215 position: click_point.previous_valid,
1216 add: false,
1217 click_count: 1,
1218 },
1219 window,
1220 cx,
1221 );
1222 editor.select(
1223 SelectPhase::Update {
1224 position: point_for_position.previous_valid,
1225 goal_column: point_for_position.exact_unclipped.column(),
1226 scroll_delta,
1227 },
1228 window,
1229 cx,
1230 );
1231 }
1232 }
1233 _ => {}
1234 }
1235 } else {
1236 editor.select(
1237 SelectPhase::Update {
1238 position: point_for_position.previous_valid,
1239 goal_column: point_for_position.exact_unclipped.column(),
1240 scroll_delta,
1241 },
1242 window,
1243 cx,
1244 );
1245 }
1246 }
1247
1248 pub(crate) fn mouse_moved(
1249 editor: &mut Editor,
1250 event: &MouseMoveEvent,
1251 position_map: &PositionMap,
1252 split_side: Option<SplitSide>,
1253 window: &mut Window,
1254 cx: &mut Context<Editor>,
1255 ) {
1256 let text_hitbox = &position_map.text_hitbox;
1257 let gutter_hitbox = &position_map.gutter_hitbox;
1258 let modifiers = event.modifiers;
1259 let text_hovered = text_hitbox.is_hovered(window);
1260 let gutter_hovered = gutter_hitbox.bounds.contains(&event.position);
1261 editor.set_gutter_hovered(gutter_hovered, cx);
1262 editor.show_mouse_cursor(cx);
1263
1264 let point_for_position = position_map.point_for_position(event.position);
1265 let valid_point = point_for_position.previous_valid;
1266
1267 // Update diff review drag state if we're dragging
1268 if editor.diff_review_drag_state.is_some() {
1269 editor.update_diff_review_drag(valid_point.row(), window, cx);
1270 }
1271
1272 let hovered_diff_control = position_map
1273 .diff_hunk_control_bounds
1274 .iter()
1275 .find(|(_, bounds)| bounds.contains(&event.position))
1276 .map(|(row, _)| *row);
1277
1278 let hovered_diff_hunk_row = if let Some(control_row) = hovered_diff_control {
1279 Some(control_row)
1280 } else if text_hovered {
1281 let current_row = valid_point.row();
1282 position_map.display_hunks.iter().find_map(|(hunk, _)| {
1283 if let DisplayDiffHunk::Unfolded {
1284 display_row_range, ..
1285 } = hunk
1286 {
1287 if display_row_range.contains(¤t_row) {
1288 Some(display_row_range.start)
1289 } else {
1290 None
1291 }
1292 } else {
1293 None
1294 }
1295 })
1296 } else {
1297 None
1298 };
1299
1300 if hovered_diff_hunk_row != editor.hovered_diff_hunk_row {
1301 editor.hovered_diff_hunk_row = hovered_diff_hunk_row;
1302 cx.notify();
1303 }
1304
1305 if let Some((bounds, buffer_id, blame_entry)) = &position_map.inline_blame_bounds {
1306 let mouse_over_inline_blame = bounds.contains(&event.position);
1307 let mouse_over_popover = editor
1308 .inline_blame_popover
1309 .as_ref()
1310 .and_then(|state| state.popover_bounds)
1311 .is_some_and(|bounds| bounds.contains(&event.position));
1312 let keyboard_grace = editor
1313 .inline_blame_popover
1314 .as_ref()
1315 .is_some_and(|state| state.keyboard_grace);
1316
1317 if mouse_over_inline_blame || mouse_over_popover {
1318 editor.show_blame_popover(*buffer_id, blame_entry, event.position, false, cx);
1319 } else if !keyboard_grace {
1320 editor.hide_blame_popover(false, cx);
1321 }
1322 } else {
1323 let keyboard_grace = editor
1324 .inline_blame_popover
1325 .as_ref()
1326 .is_some_and(|state| state.keyboard_grace);
1327 if !keyboard_grace {
1328 editor.hide_blame_popover(false, cx);
1329 }
1330 }
1331
1332 // Handle diff review indicator when gutter is hovered in diff mode with AI enabled
1333 let show_diff_review = editor.show_diff_review_button()
1334 && cx.has_flag::<DiffReviewFeatureFlag>()
1335 && !DisableAiSettings::get_global(cx).disable_ai;
1336
1337 let diff_review_indicator = if gutter_hovered && show_diff_review {
1338 let is_visible = editor
1339 .gutter_diff_review_indicator
1340 .0
1341 .is_some_and(|indicator| indicator.is_active);
1342
1343 if !is_visible {
1344 editor
1345 .gutter_diff_review_indicator
1346 .1
1347 .get_or_insert_with(|| {
1348 cx.spawn(async move |this, cx| {
1349 cx.background_executor()
1350 .timer(Duration::from_millis(200))
1351 .await;
1352
1353 this.update(cx, |this, cx| {
1354 if let Some(indicator) =
1355 this.gutter_diff_review_indicator.0.as_mut()
1356 {
1357 indicator.is_active = true;
1358 cx.notify();
1359 }
1360 })
1361 .ok();
1362 })
1363 });
1364 }
1365
1366 let anchor = position_map
1367 .snapshot
1368 .display_point_to_anchor(valid_point, Bias::Left);
1369 Some(PhantomDiffReviewIndicator {
1370 start: anchor,
1371 end: anchor,
1372 is_active: is_visible,
1373 })
1374 } else {
1375 editor.gutter_diff_review_indicator.1 = None;
1376 None
1377 };
1378
1379 if diff_review_indicator != editor.gutter_diff_review_indicator.0 {
1380 editor.gutter_diff_review_indicator.0 = diff_review_indicator;
1381 cx.notify();
1382 }
1383
1384 // Don't show breakpoint indicator when diff review indicator is active on this row
1385 let is_on_diff_review_button_row = diff_review_indicator.is_some_and(|indicator| {
1386 let start_row = indicator
1387 .start
1388 .to_display_point(&position_map.snapshot.display_snapshot)
1389 .row();
1390 indicator.is_active && start_row == valid_point.row()
1391 });
1392
1393 let breakpoint_indicator = if gutter_hovered
1394 && !is_on_diff_review_button_row
1395 && split_side != Some(SplitSide::Left)
1396 {
1397 let buffer_anchor = position_map
1398 .snapshot
1399 .display_point_to_anchor(valid_point, Bias::Left);
1400
1401 if let Some((buffer_snapshot, file)) = position_map
1402 .snapshot
1403 .buffer_snapshot()
1404 .buffer_for_excerpt(buffer_anchor.excerpt_id)
1405 .and_then(|buffer| buffer.file().map(|file| (buffer, file)))
1406 {
1407 let as_point = text::ToPoint::to_point(&buffer_anchor.text_anchor, buffer_snapshot);
1408
1409 let is_visible = editor
1410 .gutter_breakpoint_indicator
1411 .0
1412 .is_some_and(|indicator| indicator.is_active);
1413
1414 let has_existing_breakpoint =
1415 editor.breakpoint_store.as_ref().is_some_and(|store| {
1416 let Some(project) = &editor.project else {
1417 return false;
1418 };
1419 let Some(abs_path) = project.read(cx).absolute_path(
1420 &ProjectPath {
1421 path: file.path().clone(),
1422 worktree_id: file.worktree_id(cx),
1423 },
1424 cx,
1425 ) else {
1426 return false;
1427 };
1428 store
1429 .read(cx)
1430 .breakpoint_at_row(&abs_path, as_point.row, cx)
1431 .is_some()
1432 });
1433
1434 if !is_visible {
1435 editor.gutter_breakpoint_indicator.1.get_or_insert_with(|| {
1436 cx.spawn(async move |this, cx| {
1437 cx.background_executor()
1438 .timer(Duration::from_millis(200))
1439 .await;
1440
1441 this.update(cx, |this, cx| {
1442 if let Some(indicator) = this.gutter_breakpoint_indicator.0.as_mut()
1443 {
1444 indicator.is_active = true;
1445 cx.notify();
1446 }
1447 })
1448 .ok();
1449 })
1450 });
1451 }
1452
1453 Some(PhantomBreakpointIndicator {
1454 display_row: valid_point.row(),
1455 is_active: is_visible,
1456 collides_with_existing_breakpoint: has_existing_breakpoint,
1457 })
1458 } else {
1459 editor.gutter_breakpoint_indicator.1 = None;
1460 None
1461 }
1462 } else {
1463 editor.gutter_breakpoint_indicator.1 = None;
1464 None
1465 };
1466
1467 if &breakpoint_indicator != &editor.gutter_breakpoint_indicator.0 {
1468 editor.gutter_breakpoint_indicator.0 = breakpoint_indicator;
1469 cx.notify();
1470 }
1471
1472 // Don't trigger hover popover if mouse is hovering over context menu
1473 if text_hovered {
1474 editor.update_hovered_link(
1475 point_for_position,
1476 &position_map.snapshot,
1477 modifiers,
1478 window,
1479 cx,
1480 );
1481
1482 if let Some(point) = point_for_position.as_valid() {
1483 let anchor = position_map
1484 .snapshot
1485 .buffer_snapshot()
1486 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
1487 hover_at(editor, Some(anchor), window, cx);
1488 Self::update_visible_cursor(editor, point, position_map, window, cx);
1489 } else {
1490 editor.update_inlay_link_and_hover_points(
1491 &position_map.snapshot,
1492 point_for_position,
1493 modifiers.secondary(),
1494 modifiers.shift,
1495 window,
1496 cx,
1497 );
1498 }
1499 } else {
1500 editor.hide_hovered_link(cx);
1501 hover_at(editor, None, window, cx);
1502 }
1503 }
1504
1505 fn update_visible_cursor(
1506 editor: &mut Editor,
1507 point: DisplayPoint,
1508 position_map: &PositionMap,
1509 window: &mut Window,
1510 cx: &mut Context<Editor>,
1511 ) {
1512 let snapshot = &position_map.snapshot;
1513 let Some(hub) = editor.collaboration_hub() else {
1514 return;
1515 };
1516 let start = snapshot.display_snapshot.clip_point(
1517 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
1518 Bias::Left,
1519 );
1520 let end = snapshot.display_snapshot.clip_point(
1521 DisplayPoint::new(
1522 point.row(),
1523 (point.column() + 1).min(snapshot.line_len(point.row())),
1524 ),
1525 Bias::Right,
1526 );
1527
1528 let range = snapshot
1529 .buffer_snapshot()
1530 .anchor_before(start.to_point(&snapshot.display_snapshot))
1531 ..snapshot
1532 .buffer_snapshot()
1533 .anchor_after(end.to_point(&snapshot.display_snapshot));
1534
1535 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
1536 return;
1537 };
1538 let key = crate::HoveredCursor {
1539 replica_id: selection.replica_id,
1540 selection_id: selection.selection.id,
1541 };
1542 editor.hovered_cursors.insert(
1543 key.clone(),
1544 cx.spawn_in(window, async move |editor, cx| {
1545 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
1546 editor
1547 .update(cx, |editor, cx| {
1548 editor.hovered_cursors.remove(&key);
1549 cx.notify();
1550 })
1551 .ok();
1552 }),
1553 );
1554 cx.notify()
1555 }
1556
1557 fn layout_selections(
1558 &self,
1559 start_anchor: Anchor,
1560 end_anchor: Anchor,
1561 local_selections: &[Selection<Point>],
1562 snapshot: &EditorSnapshot,
1563 start_row: DisplayRow,
1564 end_row: DisplayRow,
1565 window: &mut Window,
1566 cx: &mut App,
1567 ) -> (
1568 Vec<(PlayerColor, Vec<SelectionLayout>)>,
1569 BTreeMap<DisplayRow, LineHighlightSpec>,
1570 Option<DisplayPoint>,
1571 ) {
1572 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1573 let mut active_rows = BTreeMap::new();
1574 let mut newest_selection_head = None;
1575
1576 let Some(editor_with_selections) = self.editor_with_selections(cx) else {
1577 return (selections, active_rows, newest_selection_head);
1578 };
1579
1580 editor_with_selections.update(cx, |editor, cx| {
1581 if editor.show_local_selections {
1582 let mut layouts = Vec::new();
1583 let newest = editor.selections.newest(&editor.display_snapshot(cx));
1584 for selection in local_selections.iter().cloned() {
1585 let is_empty = selection.start == selection.end;
1586 let is_newest = selection == newest;
1587
1588 let layout = SelectionLayout::new(
1589 selection,
1590 editor.selections.line_mode(),
1591 editor.cursor_offset_on_selection,
1592 editor.cursor_shape,
1593 &snapshot.display_snapshot,
1594 is_newest,
1595 editor.leader_id.is_none(),
1596 None,
1597 );
1598 if is_newest {
1599 newest_selection_head = Some(layout.head);
1600 }
1601
1602 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1603 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1604 {
1605 let contains_non_empty_selection = active_rows
1606 .entry(DisplayRow(row))
1607 .or_insert_with(LineHighlightSpec::default);
1608 contains_non_empty_selection.selection |= !is_empty;
1609 }
1610 layouts.push(layout);
1611 }
1612
1613 let mut player = editor.current_user_player_color(cx);
1614 if !editor.is_focused(window) {
1615 const UNFOCUS_EDITOR_SELECTION_OPACITY: f32 = 0.5;
1616 player.selection = player.selection.opacity(UNFOCUS_EDITOR_SELECTION_OPACITY);
1617 }
1618 selections.push((player, layouts));
1619
1620 if let SelectionDragState::Dragging {
1621 ref selection,
1622 ref drop_cursor,
1623 ref hide_drop_cursor,
1624 } = editor.selection_drag_state
1625 && !hide_drop_cursor
1626 && (drop_cursor
1627 .start
1628 .cmp(&selection.start, &snapshot.buffer_snapshot())
1629 .eq(&Ordering::Less)
1630 || drop_cursor
1631 .end
1632 .cmp(&selection.end, &snapshot.buffer_snapshot())
1633 .eq(&Ordering::Greater))
1634 {
1635 let drag_cursor_layout = SelectionLayout::new(
1636 drop_cursor.clone(),
1637 false,
1638 editor.cursor_offset_on_selection,
1639 CursorShape::Bar,
1640 &snapshot.display_snapshot,
1641 false,
1642 false,
1643 None,
1644 );
1645 let absent_color = cx.theme().players().absent();
1646 selections.push((absent_color, vec![drag_cursor_layout]));
1647 }
1648 }
1649
1650 if let Some(collaboration_hub) = &editor.collaboration_hub {
1651 // When following someone, render the local selections in their color.
1652 if let Some(leader_id) = editor.leader_id {
1653 match leader_id {
1654 CollaboratorId::PeerId(peer_id) => {
1655 if let Some(collaborator) =
1656 collaboration_hub.collaborators(cx).get(&peer_id)
1657 && let Some(participant_index) = collaboration_hub
1658 .user_participant_indices(cx)
1659 .get(&collaborator.user_id)
1660 && let Some((local_selection_style, _)) = selections.first_mut()
1661 {
1662 *local_selection_style = cx
1663 .theme()
1664 .players()
1665 .color_for_participant(participant_index.0);
1666 }
1667 }
1668 CollaboratorId::Agent => {
1669 if let Some((local_selection_style, _)) = selections.first_mut() {
1670 *local_selection_style = cx.theme().players().agent();
1671 }
1672 }
1673 }
1674 }
1675
1676 let mut remote_selections = HashMap::default();
1677 for selection in snapshot.remote_selections_in_range(
1678 &(start_anchor..end_anchor),
1679 collaboration_hub.as_ref(),
1680 cx,
1681 ) {
1682 // Don't re-render the leader's selections, since the local selections
1683 // match theirs.
1684 if Some(selection.collaborator_id) == editor.leader_id {
1685 continue;
1686 }
1687 let key = HoveredCursor {
1688 replica_id: selection.replica_id,
1689 selection_id: selection.selection.id,
1690 };
1691
1692 let is_shown =
1693 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1694
1695 remote_selections
1696 .entry(selection.replica_id)
1697 .or_insert((selection.color, Vec::new()))
1698 .1
1699 .push(SelectionLayout::new(
1700 selection.selection,
1701 selection.line_mode,
1702 editor.cursor_offset_on_selection,
1703 selection.cursor_shape,
1704 &snapshot.display_snapshot,
1705 false,
1706 false,
1707 if is_shown { selection.user_name } else { None },
1708 ));
1709 }
1710
1711 selections.extend(remote_selections.into_values());
1712 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1713 let cursor_offset_on_selection = editor.cursor_offset_on_selection;
1714
1715 let layouts = snapshot
1716 .buffer_snapshot()
1717 .selections_in_range(&(start_anchor..end_anchor), true)
1718 .map(move |(_, line_mode, cursor_shape, selection)| {
1719 SelectionLayout::new(
1720 selection,
1721 line_mode,
1722 cursor_offset_on_selection,
1723 cursor_shape,
1724 &snapshot.display_snapshot,
1725 false,
1726 false,
1727 None,
1728 )
1729 })
1730 .collect::<Vec<_>>();
1731 let player = editor.current_user_player_color(cx);
1732 selections.push((player, layouts));
1733 }
1734 });
1735
1736 #[cfg(debug_assertions)]
1737 Self::layout_debug_ranges(
1738 &mut selections,
1739 start_anchor..end_anchor,
1740 &snapshot.display_snapshot,
1741 cx,
1742 );
1743
1744 (selections, active_rows, newest_selection_head)
1745 }
1746
1747 fn collect_cursors(
1748 &self,
1749 snapshot: &EditorSnapshot,
1750 cx: &mut App,
1751 ) -> Vec<(DisplayPoint, Hsla)> {
1752 let editor = self.editor.read(cx);
1753 let mut cursors = Vec::new();
1754 let mut skip_local = false;
1755 let mut add_cursor = |anchor: Anchor, color| {
1756 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1757 };
1758 // Remote cursors
1759 if let Some(collaboration_hub) = &editor.collaboration_hub {
1760 for remote_selection in snapshot.remote_selections_in_range(
1761 &(Anchor::min()..Anchor::max()),
1762 collaboration_hub.deref(),
1763 cx,
1764 ) {
1765 add_cursor(
1766 remote_selection.selection.head(),
1767 remote_selection.color.cursor,
1768 );
1769 if Some(remote_selection.collaborator_id) == editor.leader_id {
1770 skip_local = true;
1771 }
1772 }
1773 }
1774 // Local cursors
1775 if !skip_local {
1776 let color = cx.theme().players().local().cursor;
1777 editor
1778 .selections
1779 .disjoint_anchors()
1780 .iter()
1781 .for_each(|selection| {
1782 add_cursor(selection.head(), color);
1783 });
1784 if let Some(ref selection) = editor.selections.pending_anchor() {
1785 add_cursor(selection.head(), color);
1786 }
1787 }
1788 cursors
1789 }
1790
1791 fn layout_visible_cursors(
1792 &self,
1793 snapshot: &EditorSnapshot,
1794 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1795 row_block_types: &HashMap<DisplayRow, bool>,
1796 visible_display_row_range: Range<DisplayRow>,
1797 line_layouts: &[LineWithInvisibles],
1798 text_hitbox: &Hitbox,
1799 content_origin: gpui::Point<Pixels>,
1800 scroll_position: gpui::Point<ScrollOffset>,
1801 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
1802 line_height: Pixels,
1803 em_width: Pixels,
1804 em_advance: Pixels,
1805 autoscroll_containing_element: bool,
1806 redacted_ranges: &[Range<DisplayPoint>],
1807 window: &mut Window,
1808 cx: &mut App,
1809 ) -> Vec<CursorLayout> {
1810 let mut autoscroll_bounds = None;
1811 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1812 let mut cursors = Vec::new();
1813
1814 let show_local_cursors = editor.show_local_cursors(window, cx);
1815
1816 for (player_color, selections) in selections {
1817 for selection in selections {
1818 let cursor_position = selection.head;
1819
1820 let in_range = visible_display_row_range.contains(&cursor_position.row());
1821 if (selection.is_local && !show_local_cursors)
1822 || !in_range
1823 || row_block_types.get(&cursor_position.row()) == Some(&true)
1824 {
1825 continue;
1826 }
1827
1828 let cursor_row_layout = &line_layouts
1829 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1830 let cursor_column = cursor_position.column() as usize;
1831
1832 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column)
1833 + cursor_row_layout
1834 .alignment_offset(self.style.text.text_align, text_hitbox.size.width);
1835 let cursor_next_x = cursor_row_layout.x_for_index(cursor_column + 1)
1836 + cursor_row_layout
1837 .alignment_offset(self.style.text.text_align, text_hitbox.size.width);
1838 let mut block_width = cursor_next_x - cursor_character_x;
1839 if block_width == Pixels::ZERO {
1840 block_width = em_advance;
1841 }
1842 let block_text = if selection.cursor_shape == CursorShape::Block
1843 && !redacted_ranges.iter().any(|range| {
1844 range.start <= cursor_position && cursor_position < range.end
1845 }) {
1846 snapshot
1847 .grapheme_at(cursor_position)
1848 .or_else(|| {
1849 if snapshot.is_empty() {
1850 snapshot.placeholder_text().and_then(|s| {
1851 s.graphemes(true).next().map(|s| s.to_string().into())
1852 })
1853 } else {
1854 None
1855 }
1856 })
1857 .map(|text| {
1858 let len = text.len();
1859
1860 let mut font = cursor_row_layout
1861 .font_id_for_index(cursor_column)
1862 .and_then(|cursor_font_id| {
1863 window.text_system().get_font_for_id(cursor_font_id)
1864 })
1865 .unwrap_or(self.style.text.font());
1866 font.features = self.style.text.font_features.clone();
1867
1868 // Invert the text color for the block cursor. Ensure that the text
1869 // color is opaque enough to be visible against the background color.
1870 //
1871 // 0.75 is an arbitrary threshold to determine if the background color is
1872 // opaque enough to use as a text color.
1873 //
1874 // TODO: In the future we should ensure themes have a `text_inverse` color.
1875 let color = if cx.theme().colors().editor_background.a < 0.75 {
1876 match cx.theme().appearance {
1877 Appearance::Dark => Hsla::black(),
1878 Appearance::Light => Hsla::white(),
1879 }
1880 } else {
1881 cx.theme().colors().editor_background
1882 };
1883
1884 window.text_system().shape_line(
1885 text,
1886 cursor_row_layout.font_size,
1887 &[TextRun {
1888 len,
1889 font,
1890 color,
1891 ..Default::default()
1892 }],
1893 None,
1894 )
1895 })
1896 } else {
1897 None
1898 };
1899
1900 let x = cursor_character_x - scroll_pixel_position.x.into();
1901 let y = ((cursor_position.row().as_f64() - scroll_position.y)
1902 * ScrollPixelOffset::from(line_height))
1903 .into();
1904 if selection.is_newest {
1905 editor.pixel_position_of_newest_cursor = Some(point(
1906 text_hitbox.origin.x + x + block_width / 2.,
1907 text_hitbox.origin.y + y + line_height / 2.,
1908 ));
1909
1910 if autoscroll_containing_element {
1911 let top = text_hitbox.origin.y
1912 + ((cursor_position.row().as_f64() - scroll_position.y - 3.)
1913 .max(0.)
1914 * ScrollPixelOffset::from(line_height))
1915 .into();
1916 let left = text_hitbox.origin.x
1917 + ((cursor_position.column() as ScrollOffset
1918 - scroll_position.x
1919 - 3.)
1920 .max(0.)
1921 * ScrollPixelOffset::from(em_width))
1922 .into();
1923
1924 let bottom = text_hitbox.origin.y
1925 + ((cursor_position.row().as_f64() - scroll_position.y + 4.)
1926 * ScrollPixelOffset::from(line_height))
1927 .into();
1928 let right = text_hitbox.origin.x
1929 + ((cursor_position.column() as ScrollOffset - scroll_position.x
1930 + 4.)
1931 * ScrollPixelOffset::from(em_width))
1932 .into();
1933
1934 autoscroll_bounds =
1935 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1936 }
1937 }
1938
1939 let mut cursor = CursorLayout {
1940 color: player_color.cursor,
1941 block_width,
1942 origin: point(x, y),
1943 line_height,
1944 shape: selection.cursor_shape,
1945 block_text,
1946 cursor_name: None,
1947 };
1948 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1949 string: name,
1950 color: self.style.background,
1951 is_top_row: cursor_position.row().0 == 0,
1952 });
1953 cursor.layout(content_origin, cursor_name, window, cx);
1954 cursors.push(cursor);
1955 }
1956 }
1957
1958 cursors
1959 });
1960
1961 if let Some(bounds) = autoscroll_bounds {
1962 window.request_autoscroll(bounds);
1963 }
1964
1965 cursor_layouts
1966 }
1967
1968 fn layout_scrollbars(
1969 &self,
1970 snapshot: &EditorSnapshot,
1971 scrollbar_layout_information: &ScrollbarLayoutInformation,
1972 content_offset: gpui::Point<Pixels>,
1973 scroll_position: gpui::Point<ScrollOffset>,
1974 non_visible_cursors: bool,
1975 right_margin: Pixels,
1976 editor_width: Pixels,
1977 window: &mut Window,
1978 cx: &mut App,
1979 ) -> Option<EditorScrollbars> {
1980 if self.split_side == Some(SplitSide::Left) {
1981 return None;
1982 }
1983
1984 let show_scrollbars = self.editor.read(cx).show_scrollbars;
1985 if (!show_scrollbars.horizontal && !show_scrollbars.vertical)
1986 || self.style.scrollbar_width.is_zero()
1987 {
1988 return None;
1989 }
1990
1991 // If a drag took place after we started dragging the scrollbar,
1992 // cancel the scrollbar drag.
1993 if cx.has_active_drag() {
1994 self.editor.update(cx, |editor, cx| {
1995 editor.scroll_manager.reset_scrollbar_state(cx)
1996 });
1997 }
1998
1999 let editor_settings = EditorSettings::get_global(cx);
2000 let scrollbar_settings = editor_settings.scrollbar;
2001 let show_scrollbars = match scrollbar_settings.show {
2002 ShowScrollbar::Auto => {
2003 let editor = self.editor.read(cx);
2004 let is_singleton = editor.buffer_kind(cx) == ItemBufferKind::Singleton;
2005 // Git
2006 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot().has_diff_hunks())
2007 ||
2008 // Buffer Search Results
2009 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
2010 ||
2011 // Selected Text Occurrences
2012 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
2013 ||
2014 // Selected Symbol Occurrences
2015 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
2016 ||
2017 // Diagnostics
2018 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot().has_diagnostics())
2019 ||
2020 // Cursors out of sight
2021 non_visible_cursors
2022 ||
2023 // Scrollmanager
2024 editor.scroll_manager.scrollbars_visible()
2025 }
2026 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
2027 ShowScrollbar::Always => true,
2028 ShowScrollbar::Never => return None,
2029 };
2030
2031 // The horizontal scrollbar is usually slightly offset to align nicely with
2032 // indent guides. However, this offset is not needed if indent guides are
2033 // disabled for the current editor.
2034 let content_offset = self
2035 .editor
2036 .read(cx)
2037 .show_indent_guides
2038 .is_none_or(|should_show| should_show)
2039 .then_some(content_offset)
2040 .unwrap_or_default();
2041
2042 Some(EditorScrollbars::from_scrollbar_axes(
2043 ScrollbarAxes {
2044 horizontal: scrollbar_settings.axes.horizontal
2045 && self.editor.read(cx).show_scrollbars.horizontal,
2046 vertical: scrollbar_settings.axes.vertical
2047 && self.editor.read(cx).show_scrollbars.vertical,
2048 },
2049 scrollbar_layout_information,
2050 content_offset,
2051 scroll_position,
2052 self.style.scrollbar_width,
2053 right_margin,
2054 editor_width,
2055 show_scrollbars,
2056 self.editor.read(cx).scroll_manager.active_scrollbar_state(),
2057 window,
2058 ))
2059 }
2060
2061 fn layout_minimap(
2062 &self,
2063 snapshot: &EditorSnapshot,
2064 minimap_width: Pixels,
2065 scroll_position: gpui::Point<f64>,
2066 scrollbar_layout_information: &ScrollbarLayoutInformation,
2067 scrollbar_layout: Option<&EditorScrollbars>,
2068 window: &mut Window,
2069 cx: &mut App,
2070 ) -> Option<MinimapLayout> {
2071 let minimap_editor = self.editor.read(cx).minimap().cloned()?;
2072
2073 let minimap_settings = EditorSettings::get_global(cx).minimap;
2074
2075 if minimap_settings.on_active_editor() {
2076 let active_editor = self.editor.read(cx).workspace().and_then(|ws| {
2077 ws.read(cx)
2078 .active_pane()
2079 .read(cx)
2080 .active_item()
2081 .and_then(|i| i.act_as::<Editor>(cx))
2082 });
2083 if active_editor.is_some_and(|e| e != self.editor) {
2084 return None;
2085 }
2086 }
2087
2088 if !snapshot.mode.is_full()
2089 || minimap_width.is_zero()
2090 || matches!(
2091 minimap_settings.show,
2092 ShowMinimap::Auto if scrollbar_layout.is_none_or(|layout| !layout.visible)
2093 )
2094 {
2095 return None;
2096 }
2097
2098 const MINIMAP_AXIS: ScrollbarAxis = ScrollbarAxis::Vertical;
2099
2100 let ScrollbarLayoutInformation {
2101 editor_bounds,
2102 scroll_range,
2103 glyph_grid_cell,
2104 } = scrollbar_layout_information;
2105
2106 let line_height = glyph_grid_cell.height;
2107 let scroll_position = scroll_position.along(MINIMAP_AXIS);
2108
2109 let top_right_anchor = scrollbar_layout
2110 .and_then(|layout| layout.vertical.as_ref())
2111 .map(|vertical_scrollbar| vertical_scrollbar.hitbox.origin)
2112 .unwrap_or_else(|| editor_bounds.top_right());
2113
2114 let thumb_state = self
2115 .editor
2116 .read_with(cx, |editor, _| editor.scroll_manager.minimap_thumb_state());
2117
2118 let show_thumb = match minimap_settings.thumb {
2119 MinimapThumb::Always => true,
2120 MinimapThumb::Hover => thumb_state.is_some(),
2121 };
2122
2123 let minimap_bounds = Bounds::from_corner_and_size(
2124 Corner::TopRight,
2125 top_right_anchor,
2126 size(minimap_width, editor_bounds.size.height),
2127 );
2128 let minimap_line_height = self.get_minimap_line_height(
2129 minimap_editor
2130 .read(cx)
2131 .text_style_refinement
2132 .as_ref()
2133 .and_then(|refinement| refinement.font_size)
2134 .unwrap_or(MINIMAP_FONT_SIZE),
2135 window,
2136 cx,
2137 );
2138 let minimap_height = minimap_bounds.size.height;
2139
2140 let visible_editor_lines = (editor_bounds.size.height / line_height) as f64;
2141 let total_editor_lines = (scroll_range.height / line_height) as f64;
2142 let minimap_lines = (minimap_height / minimap_line_height) as f64;
2143
2144 let minimap_scroll_top = MinimapLayout::calculate_minimap_top_offset(
2145 total_editor_lines,
2146 visible_editor_lines,
2147 minimap_lines,
2148 scroll_position,
2149 );
2150
2151 let layout = ScrollbarLayout::for_minimap(
2152 window.insert_hitbox(minimap_bounds, HitboxBehavior::Normal),
2153 visible_editor_lines,
2154 total_editor_lines,
2155 minimap_line_height,
2156 scroll_position,
2157 minimap_scroll_top,
2158 show_thumb,
2159 )
2160 .with_thumb_state(thumb_state);
2161
2162 minimap_editor.update(cx, |editor, cx| {
2163 editor.set_scroll_position(point(0., minimap_scroll_top), window, cx)
2164 });
2165
2166 // Required for the drop shadow to be visible
2167 const PADDING_OFFSET: Pixels = px(4.);
2168
2169 let mut minimap = div()
2170 .size_full()
2171 .shadow_xs()
2172 .px(PADDING_OFFSET)
2173 .child(minimap_editor)
2174 .into_any_element();
2175
2176 let extended_bounds = minimap_bounds.extend(Edges {
2177 right: PADDING_OFFSET,
2178 left: PADDING_OFFSET,
2179 ..Default::default()
2180 });
2181 minimap.layout_as_root(extended_bounds.size.into(), window, cx);
2182 window.with_absolute_element_offset(extended_bounds.origin, |window| {
2183 minimap.prepaint(window, cx)
2184 });
2185
2186 Some(MinimapLayout {
2187 minimap,
2188 thumb_layout: layout,
2189 thumb_border_style: minimap_settings.thumb_border,
2190 minimap_line_height,
2191 minimap_scroll_top,
2192 max_scroll_top: total_editor_lines,
2193 })
2194 }
2195
2196 fn get_minimap_line_height(
2197 &self,
2198 font_size: AbsoluteLength,
2199 window: &mut Window,
2200 cx: &mut App,
2201 ) -> Pixels {
2202 let rem_size = self.rem_size(cx).unwrap_or(window.rem_size());
2203 let mut text_style = self.style.text.clone();
2204 text_style.font_size = font_size;
2205 text_style.line_height_in_pixels(rem_size)
2206 }
2207
2208 fn get_minimap_width(
2209 &self,
2210 minimap_settings: &Minimap,
2211 scrollbars_shown: bool,
2212 text_width: Pixels,
2213 em_width: Pixels,
2214 font_size: Pixels,
2215 rem_size: Pixels,
2216 cx: &App,
2217 ) -> Option<Pixels> {
2218 if minimap_settings.show == ShowMinimap::Auto && !scrollbars_shown {
2219 return None;
2220 }
2221
2222 let minimap_font_size = self.editor.read_with(cx, |editor, cx| {
2223 editor.minimap().map(|minimap_editor| {
2224 minimap_editor
2225 .read(cx)
2226 .text_style_refinement
2227 .as_ref()
2228 .and_then(|refinement| refinement.font_size)
2229 .unwrap_or(MINIMAP_FONT_SIZE)
2230 })
2231 })?;
2232
2233 let minimap_em_width = em_width * (minimap_font_size.to_pixels(rem_size) / font_size);
2234
2235 let minimap_width = (text_width * MinimapLayout::MINIMAP_WIDTH_PCT)
2236 .min(minimap_em_width * minimap_settings.max_width_columns.get() as f32);
2237
2238 (minimap_width >= minimap_em_width * MinimapLayout::MINIMAP_MIN_WIDTH_COLUMNS)
2239 .then_some(minimap_width)
2240 }
2241
2242 fn prepaint_crease_toggles(
2243 &self,
2244 crease_toggles: &mut [Option<AnyElement>],
2245 line_height: Pixels,
2246 gutter_dimensions: &GutterDimensions,
2247 gutter_settings: crate::editor_settings::Gutter,
2248 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2249 gutter_hitbox: &Hitbox,
2250 window: &mut Window,
2251 cx: &mut App,
2252 ) {
2253 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
2254 if let Some(crease_toggle) = crease_toggle {
2255 debug_assert!(gutter_settings.folds);
2256 let available_space = size(
2257 AvailableSpace::MinContent,
2258 AvailableSpace::Definite(line_height * 0.55),
2259 );
2260 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
2261
2262 let position = point(
2263 gutter_dimensions.width - gutter_dimensions.right_padding,
2264 ix as f32 * line_height
2265 - (scroll_pixel_position.y % ScrollPixelOffset::from(line_height)).into(),
2266 );
2267 let centering_offset = point(
2268 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
2269 (line_height - crease_toggle_size.height) / 2.,
2270 );
2271 let origin = gutter_hitbox.origin + position + centering_offset;
2272 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
2273 }
2274 }
2275 }
2276
2277 fn prepaint_expand_toggles(
2278 &self,
2279 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
2280 window: &mut Window,
2281 cx: &mut App,
2282 ) {
2283 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
2284 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
2285 expand_toggle.layout_as_root(available_space, window, cx);
2286 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
2287 }
2288 }
2289
2290 fn prepaint_crease_trailers(
2291 &self,
2292 trailers: Vec<Option<AnyElement>>,
2293 lines: &[LineWithInvisibles],
2294 line_height: Pixels,
2295 content_origin: gpui::Point<Pixels>,
2296 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2297 em_width: Pixels,
2298 window: &mut Window,
2299 cx: &mut App,
2300 ) -> Vec<Option<CreaseTrailerLayout>> {
2301 trailers
2302 .into_iter()
2303 .enumerate()
2304 .map(|(ix, element)| {
2305 let mut element = element?;
2306 let available_space = size(
2307 AvailableSpace::MinContent,
2308 AvailableSpace::Definite(line_height),
2309 );
2310 let size = element.layout_as_root(available_space, window, cx);
2311
2312 let line = &lines[ix];
2313 let padding = if line.width == Pixels::ZERO {
2314 Pixels::ZERO
2315 } else {
2316 4. * em_width
2317 };
2318 let position = point(
2319 Pixels::from(scroll_pixel_position.x) + line.width + padding,
2320 ix as f32 * line_height
2321 - (scroll_pixel_position.y % ScrollPixelOffset::from(line_height)).into(),
2322 );
2323 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
2324 let origin = content_origin + position + centering_offset;
2325 element.prepaint_as_root(origin, available_space, window, cx);
2326 Some(CreaseTrailerLayout {
2327 element,
2328 bounds: Bounds::new(origin, size),
2329 })
2330 })
2331 .collect()
2332 }
2333
2334 // Folds contained in a hunk are ignored apart from shrinking visual size
2335 // If a fold contains any hunks then that fold line is marked as modified
2336 fn layout_gutter_diff_hunks(
2337 &self,
2338 line_height: Pixels,
2339 gutter_hitbox: &Hitbox,
2340 display_rows: Range<DisplayRow>,
2341 snapshot: &EditorSnapshot,
2342 window: &mut Window,
2343 cx: &mut App,
2344 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
2345 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
2346 let mut display_hunks = snapshot
2347 .display_diff_hunks_for_rows(display_rows, folded_buffers)
2348 .map(|hunk| (hunk, None))
2349 .collect::<Vec<_>>();
2350 let git_gutter_setting = ProjectSettings::get_global(cx).git.git_gutter;
2351 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
2352 for (hunk, hitbox) in &mut display_hunks {
2353 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
2354 let hunk_bounds =
2355 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
2356 *hitbox = Some(window.insert_hitbox(hunk_bounds, HitboxBehavior::BlockMouse));
2357 }
2358 }
2359 }
2360
2361 display_hunks
2362 }
2363
2364 fn layout_inline_diagnostics(
2365 &self,
2366 line_layouts: &[LineWithInvisibles],
2367 crease_trailers: &[Option<CreaseTrailerLayout>],
2368 row_block_types: &HashMap<DisplayRow, bool>,
2369 content_origin: gpui::Point<Pixels>,
2370 scroll_position: gpui::Point<ScrollOffset>,
2371 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2372 edit_prediction_popover_origin: Option<gpui::Point<Pixels>>,
2373 start_row: DisplayRow,
2374 end_row: DisplayRow,
2375 line_height: Pixels,
2376 em_width: Pixels,
2377 style: &EditorStyle,
2378 window: &mut Window,
2379 cx: &mut App,
2380 ) -> HashMap<DisplayRow, AnyElement> {
2381 let max_severity = match self
2382 .editor
2383 .read(cx)
2384 .inline_diagnostics_enabled()
2385 .then(|| {
2386 ProjectSettings::get_global(cx)
2387 .diagnostics
2388 .inline
2389 .max_severity
2390 .unwrap_or_else(|| self.editor.read(cx).diagnostics_max_severity)
2391 .into_lsp()
2392 })
2393 .flatten()
2394 {
2395 Some(max_severity) => max_severity,
2396 None => return HashMap::default(),
2397 };
2398
2399 let active_diagnostics_group =
2400 if let ActiveDiagnostic::Group(group) = &self.editor.read(cx).active_diagnostics {
2401 Some(group.group_id)
2402 } else {
2403 None
2404 };
2405
2406 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
2407 let snapshot = editor.snapshot(window, cx);
2408 editor
2409 .inline_diagnostics
2410 .iter()
2411 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
2412 .filter(|(_, diagnostic)| match active_diagnostics_group {
2413 Some(active_diagnostics_group) => {
2414 // Active diagnostics are all shown in the editor already, no need to display them inline
2415 diagnostic.group_id != active_diagnostics_group
2416 }
2417 None => true,
2418 })
2419 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
2420 .skip_while(|(point, _)| point.row() < start_row)
2421 .take_while(|(point, _)| point.row() < end_row)
2422 .filter(|(point, _)| !row_block_types.contains_key(&point.row()))
2423 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
2424 acc.entry(point.row())
2425 .or_insert_with(Vec::new)
2426 .push(diagnostic);
2427 acc
2428 })
2429 });
2430
2431 if diagnostics_by_rows.is_empty() {
2432 return HashMap::default();
2433 }
2434
2435 let severity_to_color = |sev: &lsp::DiagnosticSeverity| match sev {
2436 &lsp::DiagnosticSeverity::ERROR => Color::Error,
2437 &lsp::DiagnosticSeverity::WARNING => Color::Warning,
2438 &lsp::DiagnosticSeverity::INFORMATION => Color::Info,
2439 &lsp::DiagnosticSeverity::HINT => Color::Hint,
2440 _ => Color::Error,
2441 };
2442
2443 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
2444 let min_x = column_pixels(
2445 &self.style,
2446 ProjectSettings::get_global(cx)
2447 .diagnostics
2448 .inline
2449 .min_column as usize,
2450 window,
2451 );
2452
2453 let mut elements = HashMap::default();
2454 for (row, mut diagnostics) in diagnostics_by_rows {
2455 diagnostics.sort_by_key(|diagnostic| {
2456 (
2457 diagnostic.severity,
2458 std::cmp::Reverse(diagnostic.is_primary),
2459 diagnostic.start.row,
2460 diagnostic.start.column,
2461 )
2462 });
2463
2464 let Some(diagnostic_to_render) = diagnostics
2465 .iter()
2466 .find(|diagnostic| diagnostic.is_primary)
2467 .or_else(|| diagnostics.first())
2468 else {
2469 continue;
2470 };
2471
2472 let pos_y = content_origin.y + line_height * (row.0 as f64 - scroll_position.y) as f32;
2473
2474 let window_ix = row.0.saturating_sub(start_row.0) as usize;
2475 let pos_x = {
2476 let crease_trailer_layout = &crease_trailers[window_ix];
2477 let line_layout = &line_layouts[window_ix];
2478
2479 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
2480 crease_trailer.bounds.right()
2481 } else {
2482 Pixels::from(
2483 ScrollPixelOffset::from(content_origin.x + line_layout.width)
2484 - scroll_pixel_position.x,
2485 )
2486 };
2487
2488 let padded_line = line_end + padding;
2489 let min_start = Pixels::from(
2490 ScrollPixelOffset::from(content_origin.x + min_x) - scroll_pixel_position.x,
2491 );
2492
2493 cmp::max(padded_line, min_start)
2494 };
2495
2496 let behind_edit_prediction_popover = edit_prediction_popover_origin
2497 .as_ref()
2498 .is_some_and(|edit_prediction_popover_origin| {
2499 (pos_y..pos_y + line_height).contains(&edit_prediction_popover_origin.y)
2500 });
2501 let opacity = if behind_edit_prediction_popover {
2502 0.5
2503 } else {
2504 1.0
2505 };
2506
2507 let mut element = h_flex()
2508 .id(("diagnostic", row.0))
2509 .h(line_height)
2510 .w_full()
2511 .px_1()
2512 .rounded_xs()
2513 .opacity(opacity)
2514 .bg(severity_to_color(&diagnostic_to_render.severity)
2515 .color(cx)
2516 .opacity(0.05))
2517 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
2518 .text_sm()
2519 .font(style.text.font())
2520 .child(diagnostic_to_render.message.clone())
2521 .into_any();
2522
2523 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
2524
2525 elements.insert(row, element);
2526 }
2527
2528 elements
2529 }
2530
2531 fn layout_inline_code_actions(
2532 &self,
2533 display_point: DisplayPoint,
2534 content_origin: gpui::Point<Pixels>,
2535 scroll_position: gpui::Point<ScrollOffset>,
2536 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2537 line_height: Pixels,
2538 snapshot: &EditorSnapshot,
2539 window: &mut Window,
2540 cx: &mut App,
2541 ) -> Option<AnyElement> {
2542 // Don't show code actions in split diff view
2543 if self.split_side.is_some() {
2544 return None;
2545 }
2546
2547 if !snapshot
2548 .show_code_actions
2549 .unwrap_or(EditorSettings::get_global(cx).inline_code_actions)
2550 {
2551 return None;
2552 }
2553
2554 let icon_size = ui::IconSize::XSmall;
2555 let mut button = self.editor.update(cx, |editor, cx| {
2556 editor.available_code_actions.as_ref()?;
2557 let active = editor
2558 .context_menu
2559 .borrow()
2560 .as_ref()
2561 .and_then(|menu| {
2562 if let crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2563 deployed_from,
2564 ..
2565 }) = menu
2566 {
2567 deployed_from.as_ref()
2568 } else {
2569 None
2570 }
2571 })
2572 .is_some_and(|source| matches!(source, CodeActionSource::Indicator(..)));
2573 Some(editor.render_inline_code_actions(icon_size, display_point.row(), active, cx))
2574 })?;
2575
2576 let buffer_point = display_point.to_point(&snapshot.display_snapshot);
2577
2578 // do not show code action for folded line
2579 if snapshot.is_line_folded(MultiBufferRow(buffer_point.row)) {
2580 return None;
2581 }
2582
2583 // do not show code action for blank line with cursor
2584 let line_indent = snapshot
2585 .display_snapshot
2586 .buffer_snapshot()
2587 .line_indent_for_row(MultiBufferRow(buffer_point.row));
2588 if line_indent.is_line_blank() {
2589 return None;
2590 }
2591
2592 const INLINE_SLOT_CHAR_LIMIT: u32 = 4;
2593 const MAX_ALTERNATE_DISTANCE: u32 = 8;
2594
2595 let excerpt_id = snapshot
2596 .display_snapshot
2597 .buffer_snapshot()
2598 .excerpt_containing(buffer_point..buffer_point)
2599 .map(|excerpt| excerpt.id());
2600
2601 let is_valid_row = |row_candidate: u32| -> bool {
2602 // move to other row if folded row
2603 if snapshot.is_line_folded(MultiBufferRow(row_candidate)) {
2604 return false;
2605 }
2606 if buffer_point.row == row_candidate {
2607 // move to other row if cursor is in slot
2608 if buffer_point.column < INLINE_SLOT_CHAR_LIMIT {
2609 return false;
2610 }
2611 } else {
2612 let candidate_point = MultiBufferPoint {
2613 row: row_candidate,
2614 column: 0,
2615 };
2616 let candidate_excerpt_id = snapshot
2617 .display_snapshot
2618 .buffer_snapshot()
2619 .excerpt_containing(candidate_point..candidate_point)
2620 .map(|excerpt| excerpt.id());
2621 // move to other row if different excerpt
2622 if excerpt_id != candidate_excerpt_id {
2623 return false;
2624 }
2625 }
2626 let line_indent = snapshot
2627 .display_snapshot
2628 .buffer_snapshot()
2629 .line_indent_for_row(MultiBufferRow(row_candidate));
2630 // use this row if it's blank
2631 if line_indent.is_line_blank() {
2632 true
2633 } else {
2634 // use this row if code starts after slot
2635 let indent_size = snapshot
2636 .display_snapshot
2637 .buffer_snapshot()
2638 .indent_size_for_line(MultiBufferRow(row_candidate));
2639 indent_size.len >= INLINE_SLOT_CHAR_LIMIT
2640 }
2641 };
2642
2643 let new_buffer_row = if is_valid_row(buffer_point.row) {
2644 Some(buffer_point.row)
2645 } else {
2646 let max_row = snapshot.display_snapshot.buffer_snapshot().max_point().row;
2647 (1..=MAX_ALTERNATE_DISTANCE).find_map(|offset| {
2648 let row_above = buffer_point.row.saturating_sub(offset);
2649 let row_below = buffer_point.row + offset;
2650 if row_above != buffer_point.row && is_valid_row(row_above) {
2651 Some(row_above)
2652 } else if row_below <= max_row && is_valid_row(row_below) {
2653 Some(row_below)
2654 } else {
2655 None
2656 }
2657 })
2658 }?;
2659
2660 let new_display_row = snapshot
2661 .display_snapshot
2662 .point_to_display_point(
2663 Point {
2664 row: new_buffer_row,
2665 column: buffer_point.column,
2666 },
2667 text::Bias::Left,
2668 )
2669 .row();
2670
2671 let start_y = content_origin.y
2672 + (((new_display_row.as_f64() - scroll_position.y) as f32) * line_height)
2673 + (line_height / 2.0)
2674 - (icon_size.square(window, cx) / 2.);
2675 let start_x = (ScrollPixelOffset::from(content_origin.x) - scroll_pixel_position.x
2676 + ScrollPixelOffset::from(window.rem_size() * 0.1))
2677 .into();
2678
2679 let absolute_offset = gpui::point(start_x, start_y);
2680 button.layout_as_root(gpui::AvailableSpace::min_size(), window, cx);
2681 button.prepaint_as_root(
2682 absolute_offset,
2683 gpui::AvailableSpace::min_size(),
2684 window,
2685 cx,
2686 );
2687 Some(button)
2688 }
2689
2690 fn layout_inline_blame(
2691 &self,
2692 display_row: DisplayRow,
2693 row_info: &RowInfo,
2694 line_layout: &LineWithInvisibles,
2695 crease_trailer: Option<&CreaseTrailerLayout>,
2696 em_width: Pixels,
2697 content_origin: gpui::Point<Pixels>,
2698 scroll_position: gpui::Point<ScrollOffset>,
2699 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2700 line_height: Pixels,
2701 window: &mut Window,
2702 cx: &mut App,
2703 ) -> Option<InlineBlameLayout> {
2704 if !self
2705 .editor
2706 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
2707 {
2708 return None;
2709 }
2710
2711 let editor = self.editor.read(cx);
2712 let blame = editor.blame.clone()?;
2713 let padding = {
2714 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
2715
2716 let mut padding = ProjectSettings::get_global(cx).git.inline_blame.padding as f32;
2717
2718 if let Some(edit_prediction) = editor.active_edit_prediction.as_ref()
2719 && let EditPrediction::Edit {
2720 display_mode: EditDisplayMode::TabAccept,
2721 ..
2722 } = &edit_prediction.completion
2723 {
2724 padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS
2725 }
2726
2727 padding * em_width
2728 };
2729
2730 let (buffer_id, entry) = blame
2731 .update(cx, |blame, cx| {
2732 blame.blame_for_rows(&[*row_info], cx).next()
2733 })
2734 .flatten()?;
2735
2736 let mut element = render_inline_blame_entry(entry.clone(), &self.style, cx)?;
2737
2738 let start_y =
2739 content_origin.y + line_height * ((display_row.as_f64() - scroll_position.y) as f32);
2740
2741 let start_x = {
2742 let line_end = if let Some(crease_trailer) = crease_trailer {
2743 crease_trailer.bounds.right()
2744 } else {
2745 Pixels::from(
2746 ScrollPixelOffset::from(content_origin.x + line_layout.width)
2747 - scroll_pixel_position.x,
2748 )
2749 };
2750
2751 let padded_line_end = line_end + padding;
2752
2753 let min_column_in_pixels = column_pixels(
2754 &self.style,
2755 ProjectSettings::get_global(cx).git.inline_blame.min_column as usize,
2756 window,
2757 );
2758 let min_start = Pixels::from(
2759 ScrollPixelOffset::from(content_origin.x + min_column_in_pixels)
2760 - scroll_pixel_position.x,
2761 );
2762
2763 cmp::max(padded_line_end, min_start)
2764 };
2765
2766 let absolute_offset = point(start_x, start_y);
2767 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2768 let bounds = Bounds::new(absolute_offset, size);
2769
2770 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
2771
2772 Some(InlineBlameLayout {
2773 element,
2774 bounds,
2775 buffer_id,
2776 entry,
2777 })
2778 }
2779
2780 fn layout_blame_popover(
2781 &self,
2782 editor_snapshot: &EditorSnapshot,
2783 text_hitbox: &Hitbox,
2784 line_height: Pixels,
2785 window: &mut Window,
2786 cx: &mut App,
2787 ) {
2788 if !self.editor.read(cx).inline_blame_popover.is_some() {
2789 return;
2790 }
2791
2792 let Some(blame) = self.editor.read(cx).blame.clone() else {
2793 return;
2794 };
2795 let cursor_point = self
2796 .editor
2797 .read(cx)
2798 .selections
2799 .newest::<language::Point>(&editor_snapshot.display_snapshot)
2800 .head();
2801
2802 let Some((buffer, buffer_point, _)) = editor_snapshot
2803 .buffer_snapshot()
2804 .point_to_buffer_point(cursor_point)
2805 else {
2806 return;
2807 };
2808
2809 let row_info = RowInfo {
2810 buffer_id: Some(buffer.remote_id()),
2811 buffer_row: Some(buffer_point.row),
2812 ..Default::default()
2813 };
2814
2815 let Some((buffer_id, blame_entry)) = blame
2816 .update(cx, |blame, cx| blame.blame_for_rows(&[row_info], cx).next())
2817 .flatten()
2818 else {
2819 return;
2820 };
2821
2822 let Some((popover_state, target_point)) = self.editor.read_with(cx, |editor, _| {
2823 editor
2824 .inline_blame_popover
2825 .as_ref()
2826 .map(|state| (state.popover_state.clone(), state.position))
2827 }) else {
2828 return;
2829 };
2830
2831 let workspace = self
2832 .editor
2833 .read_with(cx, |editor, _| editor.workspace().map(|w| w.downgrade()));
2834
2835 let maybe_element = workspace.and_then(|workspace| {
2836 render_blame_entry_popover(
2837 blame_entry,
2838 popover_state.scroll_handle,
2839 popover_state.commit_message,
2840 popover_state.markdown,
2841 workspace,
2842 &blame,
2843 buffer_id,
2844 window,
2845 cx,
2846 )
2847 });
2848
2849 if let Some(mut element) = maybe_element {
2850 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2851 let overall_height = size.height + HOVER_POPOVER_GAP;
2852 let popover_origin = if target_point.y > overall_height {
2853 point(target_point.x, target_point.y - size.height)
2854 } else {
2855 point(
2856 target_point.x,
2857 target_point.y + line_height + HOVER_POPOVER_GAP,
2858 )
2859 };
2860
2861 let horizontal_offset = (text_hitbox.top_right().x
2862 - POPOVER_RIGHT_OFFSET
2863 - (popover_origin.x + size.width))
2864 .min(Pixels::ZERO);
2865
2866 let origin = point(popover_origin.x + horizontal_offset, popover_origin.y);
2867 let popover_bounds = Bounds::new(origin, size);
2868
2869 self.editor.update(cx, |editor, _| {
2870 if let Some(state) = &mut editor.inline_blame_popover {
2871 state.popover_bounds = Some(popover_bounds);
2872 }
2873 });
2874
2875 window.defer_draw(element, origin, 2);
2876 }
2877 }
2878
2879 fn layout_blame_entries(
2880 &self,
2881 buffer_rows: &[RowInfo],
2882 em_width: Pixels,
2883 scroll_position: gpui::Point<ScrollOffset>,
2884 line_height: Pixels,
2885 gutter_hitbox: &Hitbox,
2886 max_width: Option<Pixels>,
2887 window: &mut Window,
2888 cx: &mut App,
2889 ) -> Option<Vec<AnyElement>> {
2890 if !self
2891 .editor
2892 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
2893 {
2894 return None;
2895 }
2896
2897 let blame = self.editor.read(cx).blame.clone()?;
2898 let workspace = self.editor.read(cx).workspace()?;
2899 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
2900 blame.blame_for_rows(buffer_rows, cx).collect()
2901 });
2902
2903 let width = if let Some(max_width) = max_width {
2904 AvailableSpace::Definite(max_width)
2905 } else {
2906 AvailableSpace::MaxContent
2907 };
2908 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
2909 let start_x = em_width;
2910
2911 let mut last_used_color: Option<(Hsla, Oid)> = None;
2912 let blame_renderer = cx.global::<GlobalBlameRenderer>().0.clone();
2913
2914 let shaped_lines = blamed_rows
2915 .into_iter()
2916 .enumerate()
2917 .flat_map(|(ix, blame_entry)| {
2918 let (buffer_id, blame_entry) = blame_entry?;
2919 let mut element = render_blame_entry(
2920 ix,
2921 &blame,
2922 blame_entry,
2923 &self.style,
2924 &mut last_used_color,
2925 self.editor.clone(),
2926 workspace.clone(),
2927 buffer_id,
2928 &*blame_renderer,
2929 window,
2930 cx,
2931 )?;
2932
2933 let start_y = ix as f32 * line_height
2934 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height));
2935 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
2936
2937 element.prepaint_as_root(
2938 absolute_offset,
2939 size(width, AvailableSpace::MinContent),
2940 window,
2941 cx,
2942 );
2943
2944 Some(element)
2945 })
2946 .collect();
2947
2948 Some(shaped_lines)
2949 }
2950
2951 fn layout_indent_guides(
2952 &self,
2953 content_origin: gpui::Point<Pixels>,
2954 text_origin: gpui::Point<Pixels>,
2955 visible_buffer_range: Range<MultiBufferRow>,
2956 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2957 line_height: Pixels,
2958 snapshot: &DisplaySnapshot,
2959 window: &mut Window,
2960 cx: &mut App,
2961 ) -> Option<Vec<IndentGuideLayout>> {
2962 let indent_guides = self.editor.update(cx, |editor, cx| {
2963 editor.indent_guides(visible_buffer_range, snapshot, cx)
2964 })?;
2965
2966 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
2967 editor
2968 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
2969 .unwrap_or_default()
2970 });
2971
2972 Some(
2973 indent_guides
2974 .into_iter()
2975 .enumerate()
2976 .filter_map(|(i, indent_guide)| {
2977 let single_indent_width =
2978 column_pixels(&self.style, indent_guide.tab_size as usize, window);
2979 let total_width = single_indent_width * indent_guide.depth as f32;
2980 let start_x = Pixels::from(
2981 ScrollOffset::from(content_origin.x + total_width)
2982 - scroll_pixel_position.x,
2983 );
2984 if start_x >= text_origin.x {
2985 let (offset_y, length) = Self::calculate_indent_guide_bounds(
2986 indent_guide.start_row..indent_guide.end_row,
2987 line_height,
2988 snapshot,
2989 );
2990
2991 let start_y = Pixels::from(
2992 ScrollOffset::from(content_origin.y) + offset_y
2993 - scroll_pixel_position.y,
2994 );
2995
2996 Some(IndentGuideLayout {
2997 origin: point(start_x, start_y),
2998 length,
2999 single_indent_width,
3000 depth: indent_guide.depth,
3001 active: active_indent_guide_indices.contains(&i),
3002 settings: indent_guide.settings,
3003 })
3004 } else {
3005 None
3006 }
3007 })
3008 .collect(),
3009 )
3010 }
3011
3012 fn layout_wrap_guides(
3013 &self,
3014 em_advance: Pixels,
3015 scroll_position: gpui::Point<f64>,
3016 content_origin: gpui::Point<Pixels>,
3017 scrollbar_layout: Option<&EditorScrollbars>,
3018 vertical_scrollbar_width: Pixels,
3019 hitbox: &Hitbox,
3020 window: &Window,
3021 cx: &App,
3022 ) -> SmallVec<[(Pixels, bool); 2]> {
3023 let scroll_left = scroll_position.x as f32 * em_advance;
3024 let content_origin = content_origin.x;
3025 let horizontal_offset = content_origin - scroll_left;
3026 let vertical_scrollbar_width = scrollbar_layout
3027 .and_then(|layout| layout.visible.then_some(vertical_scrollbar_width))
3028 .unwrap_or_default();
3029
3030 self.editor
3031 .read(cx)
3032 .wrap_guides(cx)
3033 .into_iter()
3034 .flat_map(|(guide, active)| {
3035 let wrap_position = column_pixels(&self.style, guide, window);
3036 let wrap_guide_x = wrap_position + horizontal_offset;
3037 let display_wrap_guide = wrap_guide_x >= content_origin
3038 && wrap_guide_x <= hitbox.bounds.right() - vertical_scrollbar_width;
3039
3040 display_wrap_guide.then_some((wrap_guide_x, active))
3041 })
3042 .collect()
3043 }
3044
3045 fn calculate_indent_guide_bounds(
3046 row_range: Range<MultiBufferRow>,
3047 line_height: Pixels,
3048 snapshot: &DisplaySnapshot,
3049 ) -> (f64, gpui::Pixels) {
3050 let start_point = Point::new(row_range.start.0, 0);
3051 let end_point = Point::new(row_range.end.0, 0);
3052
3053 let row_range = start_point.to_display_point(snapshot).row()
3054 ..end_point.to_display_point(snapshot).row();
3055
3056 let mut prev_line = start_point;
3057 prev_line.row = prev_line.row.saturating_sub(1);
3058 let prev_line = prev_line.to_display_point(snapshot).row();
3059
3060 let mut cons_line = end_point;
3061 cons_line.row += 1;
3062 let cons_line = cons_line.to_display_point(snapshot).row();
3063
3064 let mut offset_y = row_range.start.as_f64() * f64::from(line_height);
3065 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
3066
3067 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
3068 if row_range.end == cons_line {
3069 length += line_height;
3070 }
3071
3072 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
3073 // we want to extend the indent guide to the start of the block.
3074 let mut block_height = 0;
3075 let mut block_offset = 0;
3076 let mut found_excerpt_header = false;
3077 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
3078 if matches!(
3079 block,
3080 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
3081 ) {
3082 found_excerpt_header = true;
3083 break;
3084 }
3085 block_offset += block.height();
3086 block_height += block.height();
3087 }
3088 if !found_excerpt_header {
3089 offset_y -= block_offset as f64 * f64::from(line_height);
3090 length += block_height as f32 * line_height;
3091 }
3092
3093 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
3094 // we want to ensure that the indent guide stops before the excerpt header.
3095 let mut block_height = 0;
3096 let mut found_excerpt_header = false;
3097 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
3098 if matches!(
3099 block,
3100 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
3101 ) {
3102 found_excerpt_header = true;
3103 }
3104 block_height += block.height();
3105 }
3106 if found_excerpt_header {
3107 length -= block_height as f32 * line_height;
3108 }
3109
3110 (offset_y, length)
3111 }
3112
3113 fn layout_breakpoints(
3114 &self,
3115 line_height: Pixels,
3116 range: Range<DisplayRow>,
3117 scroll_position: gpui::Point<ScrollOffset>,
3118 gutter_dimensions: &GutterDimensions,
3119 gutter_hitbox: &Hitbox,
3120 snapshot: &EditorSnapshot,
3121 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
3122 row_infos: &[RowInfo],
3123 window: &mut Window,
3124 cx: &mut App,
3125 ) -> Vec<AnyElement> {
3126 if self.split_side == Some(SplitSide::Left) {
3127 return Vec::new();
3128 }
3129
3130 self.editor.update(cx, |editor, cx| {
3131 breakpoints
3132 .into_iter()
3133 .filter_map(|(display_row, (text_anchor, bp, state))| {
3134 if row_infos
3135 .get((display_row.0.saturating_sub(range.start.0)) as usize)
3136 .is_some_and(|row_info| {
3137 row_info.expand_info.is_some()
3138 || row_info
3139 .diff_status
3140 .is_some_and(|status| status.is_deleted())
3141 })
3142 {
3143 return None;
3144 }
3145
3146 if range.start > display_row || range.end < display_row {
3147 return None;
3148 }
3149
3150 let row =
3151 MultiBufferRow(DisplayPoint::new(display_row, 0).to_point(snapshot).row);
3152 if snapshot.is_line_folded(row) {
3153 return None;
3154 }
3155
3156 let button = editor.render_breakpoint(text_anchor, display_row, &bp, state, cx);
3157
3158 let button = prepaint_gutter_button(
3159 button.into_any_element(),
3160 display_row,
3161 line_height,
3162 gutter_dimensions,
3163 scroll_position,
3164 gutter_hitbox,
3165 window,
3166 cx,
3167 );
3168 Some(button)
3169 })
3170 .collect_vec()
3171 })
3172 }
3173
3174 fn should_render_diff_review_button(
3175 &self,
3176 range: Range<DisplayRow>,
3177 row_infos: &[RowInfo],
3178 snapshot: &EditorSnapshot,
3179 cx: &App,
3180 ) -> Option<(DisplayRow, Option<u32>)> {
3181 if !cx.has_flag::<DiffReviewFeatureFlag>() {
3182 return None;
3183 }
3184
3185 let show_diff_review_button = self.editor.read(cx).show_diff_review_button();
3186 if !show_diff_review_button {
3187 return None;
3188 }
3189
3190 let indicator = self.editor.read(cx).gutter_diff_review_indicator.0?;
3191 if !indicator.is_active {
3192 return None;
3193 }
3194
3195 let display_row = indicator
3196 .start
3197 .to_display_point(&snapshot.display_snapshot)
3198 .row();
3199 let row_index = (display_row.0.saturating_sub(range.start.0)) as usize;
3200
3201 let row_info = row_infos.get(row_index);
3202 if row_info.is_some_and(|row_info| row_info.expand_info.is_some()) {
3203 return None;
3204 }
3205
3206 let buffer_id = row_info.and_then(|info| info.buffer_id);
3207 if buffer_id.is_none() {
3208 return None;
3209 }
3210
3211 let editor = self.editor.read(cx);
3212 if buffer_id.is_some_and(|buffer_id| editor.is_buffer_folded(buffer_id, cx)) {
3213 return None;
3214 }
3215
3216 let buffer_row = row_info.and_then(|info| info.buffer_row);
3217 Some((display_row, buffer_row))
3218 }
3219
3220 #[allow(clippy::too_many_arguments)]
3221 fn layout_run_indicators(
3222 &self,
3223 line_height: Pixels,
3224 range: Range<DisplayRow>,
3225 row_infos: &[RowInfo],
3226 scroll_position: gpui::Point<ScrollOffset>,
3227 gutter_dimensions: &GutterDimensions,
3228 gutter_hitbox: &Hitbox,
3229 snapshot: &EditorSnapshot,
3230 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
3231 window: &mut Window,
3232 cx: &mut App,
3233 ) -> Vec<AnyElement> {
3234 if self.split_side == Some(SplitSide::Left) {
3235 return Vec::new();
3236 }
3237
3238 self.editor.update(cx, |editor, cx| {
3239 let active_task_indicator_row =
3240 // TODO: add edit button on the right side of each row in the context menu
3241 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
3242 deployed_from,
3243 actions,
3244 ..
3245 })) = editor.context_menu.borrow().as_ref()
3246 {
3247 actions
3248 .tasks()
3249 .map(|tasks| tasks.position.to_display_point(snapshot).row())
3250 .or_else(|| match deployed_from {
3251 Some(CodeActionSource::Indicator(row)) => Some(*row),
3252 _ => None,
3253 })
3254 } else {
3255 None
3256 };
3257
3258 let offset_range_start =
3259 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
3260
3261 let offset_range_end =
3262 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
3263
3264 editor
3265 .tasks
3266 .iter()
3267 .filter_map(|(_, tasks)| {
3268 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot());
3269 if multibuffer_point < offset_range_start
3270 || multibuffer_point > offset_range_end
3271 {
3272 return None;
3273 }
3274 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
3275 let buffer_folded = snapshot
3276 .buffer_snapshot()
3277 .buffer_line_for_row(multibuffer_row)
3278 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
3279 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
3280 .unwrap_or(false);
3281 if buffer_folded {
3282 return None;
3283 }
3284
3285 if snapshot.is_line_folded(multibuffer_row) {
3286 // Skip folded indicators, unless it's the starting line of a fold.
3287 if multibuffer_row
3288 .0
3289 .checked_sub(1)
3290 .is_some_and(|previous_row| {
3291 snapshot.is_line_folded(MultiBufferRow(previous_row))
3292 })
3293 {
3294 return None;
3295 }
3296 }
3297
3298 let display_row = multibuffer_point.to_display_point(snapshot).row();
3299 if !range.contains(&display_row) {
3300 return None;
3301 }
3302 if row_infos
3303 .get((display_row - range.start).0 as usize)
3304 .is_some_and(|row_info| row_info.expand_info.is_some())
3305 {
3306 return None;
3307 }
3308
3309 let removed_breakpoint = breakpoints.remove(&display_row);
3310 let button = editor.render_run_indicator(
3311 &self.style,
3312 Some(display_row) == active_task_indicator_row,
3313 display_row,
3314 removed_breakpoint,
3315 cx,
3316 );
3317
3318 let button = prepaint_gutter_button(
3319 button.into_any_element(),
3320 display_row,
3321 line_height,
3322 gutter_dimensions,
3323 scroll_position,
3324 gutter_hitbox,
3325 window,
3326 cx,
3327 );
3328 Some(button)
3329 })
3330 .collect_vec()
3331 })
3332 }
3333
3334 fn layout_expand_toggles(
3335 &self,
3336 gutter_hitbox: &Hitbox,
3337 gutter_dimensions: GutterDimensions,
3338 em_width: Pixels,
3339 line_height: Pixels,
3340 scroll_position: gpui::Point<ScrollOffset>,
3341 buffer_rows: &[RowInfo],
3342 window: &mut Window,
3343 cx: &mut App,
3344 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
3345 if self.editor.read(cx).disable_expand_excerpt_buttons {
3346 return vec![];
3347 }
3348
3349 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
3350
3351 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
3352
3353 let max_line_number_length = self
3354 .editor
3355 .read(cx)
3356 .buffer()
3357 .read(cx)
3358 .snapshot(cx)
3359 .widest_line_number()
3360 .ilog10()
3361 + 1;
3362
3363 let git_gutter_width = Self::gutter_strip_width(line_height)
3364 + gutter_dimensions
3365 .git_blame_entries_width
3366 .unwrap_or_default();
3367 let available_width = gutter_dimensions.left_padding - git_gutter_width;
3368
3369 buffer_rows
3370 .iter()
3371 .enumerate()
3372 .map(|(ix, row_info)| {
3373 let ExpandInfo {
3374 excerpt_id,
3375 direction,
3376 } = row_info.expand_info?;
3377
3378 let icon_name = match direction {
3379 ExpandExcerptDirection::Up => IconName::ExpandUp,
3380 ExpandExcerptDirection::Down => IconName::ExpandDown,
3381 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
3382 };
3383
3384 let editor = self.editor.clone();
3385 let is_wide = max_line_number_length
3386 >= EditorSettings::get_global(cx).gutter.min_line_number_digits as u32
3387 && row_info
3388 .buffer_row
3389 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
3390 || gutter_dimensions.right_padding == px(0.);
3391
3392 let width = if is_wide {
3393 available_width - px(5.)
3394 } else {
3395 available_width + em_width - px(5.)
3396 };
3397
3398 let toggle = IconButton::new(("expand", ix), icon_name)
3399 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
3400 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
3401 .width(width)
3402 .on_click(move |_, window, cx| {
3403 editor.update(cx, |editor, cx| {
3404 editor.expand_excerpt(excerpt_id, direction, window, cx);
3405 });
3406 })
3407 .tooltip(Tooltip::for_action_title(
3408 "Expand Excerpt",
3409 &crate::actions::ExpandExcerpts::default(),
3410 ))
3411 .into_any_element();
3412
3413 let position = point(
3414 git_gutter_width + px(1.),
3415 ix as f32 * line_height
3416 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height))
3417 + px(1.),
3418 );
3419 let origin = gutter_hitbox.origin + position;
3420
3421 Some((toggle, origin))
3422 })
3423 .collect()
3424 }
3425
3426 fn layout_line_numbers(
3427 &self,
3428 gutter_hitbox: Option<&Hitbox>,
3429 gutter_dimensions: GutterDimensions,
3430 line_height: Pixels,
3431 scroll_position: gpui::Point<ScrollOffset>,
3432 rows: Range<DisplayRow>,
3433 buffer_rows: &[RowInfo],
3434 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3435 current_selection_head: Option<DisplayRow>,
3436 snapshot: &EditorSnapshot,
3437 window: &mut Window,
3438 cx: &mut App,
3439 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
3440 let include_line_numbers = snapshot
3441 .show_line_numbers
3442 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
3443 if !include_line_numbers {
3444 return Arc::default();
3445 }
3446
3447 let relative = self.editor.read(cx).relative_line_numbers(cx);
3448
3449 let relative_line_numbers_enabled = relative.enabled();
3450 let relative_rows = if relative_line_numbers_enabled
3451 && let Some(current_selection_head) = current_selection_head
3452 {
3453 snapshot.calculate_relative_line_numbers(
3454 &rows,
3455 current_selection_head,
3456 relative.wrapped(),
3457 )
3458 } else {
3459 Default::default()
3460 };
3461
3462 let mut line_number = String::new();
3463 let segments = buffer_rows.iter().enumerate().flat_map(|(ix, row_info)| {
3464 let display_row = DisplayRow(rows.start.0 + ix as u32);
3465 line_number.clear();
3466 let non_relative_number = if relative.wrapped() {
3467 row_info.buffer_row.or(row_info.wrapped_buffer_row)? + 1
3468 } else {
3469 row_info.buffer_row? + 1
3470 };
3471 let relative_number = relative_rows.get(&display_row);
3472 if !(relative_line_numbers_enabled && relative_number.is_some())
3473 && !snapshot.number_deleted_lines
3474 && row_info
3475 .diff_status
3476 .is_some_and(|status| status.is_deleted())
3477 {
3478 return None;
3479 }
3480
3481 let number = relative_number.unwrap_or(&non_relative_number);
3482 write!(&mut line_number, "{number}").unwrap();
3483
3484 let color = active_rows
3485 .get(&display_row)
3486 .map(|spec| {
3487 if spec.breakpoint {
3488 cx.theme().colors().debugger_accent
3489 } else {
3490 cx.theme().colors().editor_active_line_number
3491 }
3492 })
3493 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
3494 let shaped_line =
3495 self.shape_line_number(SharedString::from(&line_number), color, window);
3496 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
3497 let line_origin = gutter_hitbox.map(|hitbox| {
3498 hitbox.origin
3499 + point(
3500 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
3501 ix as f32 * line_height
3502 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height)),
3503 )
3504 });
3505
3506 #[cfg(not(test))]
3507 let hitbox = line_origin.map(|line_origin| {
3508 window.insert_hitbox(
3509 Bounds::new(line_origin, size(shaped_line.width, line_height)),
3510 HitboxBehavior::Normal,
3511 )
3512 });
3513 #[cfg(test)]
3514 let hitbox = {
3515 let _ = line_origin;
3516 None
3517 };
3518
3519 let segment = LineNumberSegment {
3520 shaped_line,
3521 hitbox,
3522 };
3523
3524 let buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
3525 let multi_buffer_row = MultiBufferRow(buffer_row);
3526
3527 Some((multi_buffer_row, segment))
3528 });
3529
3530 let mut line_numbers: HashMap<MultiBufferRow, LineNumberLayout> = HashMap::default();
3531 for (buffer_row, segment) in segments {
3532 line_numbers
3533 .entry(buffer_row)
3534 .or_insert_with(|| LineNumberLayout {
3535 segments: Default::default(),
3536 })
3537 .segments
3538 .push(segment);
3539 }
3540 Arc::new(line_numbers)
3541 }
3542
3543 fn layout_crease_toggles(
3544 &self,
3545 rows: Range<DisplayRow>,
3546 row_infos: &[RowInfo],
3547 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3548 snapshot: &EditorSnapshot,
3549 window: &mut Window,
3550 cx: &mut App,
3551 ) -> Vec<Option<AnyElement>> {
3552 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
3553 && snapshot.mode.is_full()
3554 && self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
3555 if include_fold_statuses {
3556 row_infos
3557 .iter()
3558 .enumerate()
3559 .map(|(ix, info)| {
3560 if info.expand_info.is_some() {
3561 return None;
3562 }
3563 let row = info.multibuffer_row?;
3564 let display_row = DisplayRow(rows.start.0 + ix as u32);
3565 let active = active_rows.contains_key(&display_row);
3566
3567 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
3568 })
3569 .collect()
3570 } else {
3571 Vec::new()
3572 }
3573 }
3574
3575 fn layout_crease_trailers(
3576 &self,
3577 buffer_rows: impl IntoIterator<Item = RowInfo>,
3578 snapshot: &EditorSnapshot,
3579 window: &mut Window,
3580 cx: &mut App,
3581 ) -> Vec<Option<AnyElement>> {
3582 buffer_rows
3583 .into_iter()
3584 .map(|row_info| {
3585 if row_info.expand_info.is_some() {
3586 return None;
3587 }
3588 if let Some(row) = row_info.multibuffer_row {
3589 snapshot.render_crease_trailer(row, window, cx)
3590 } else {
3591 None
3592 }
3593 })
3594 .collect()
3595 }
3596
3597 fn bg_segments_per_row(
3598 rows: Range<DisplayRow>,
3599 selections: &[(PlayerColor, Vec<SelectionLayout>)],
3600 highlight_ranges: &[(Range<DisplayPoint>, Hsla)],
3601 base_background: Hsla,
3602 ) -> Vec<Vec<(Range<DisplayPoint>, Hsla)>> {
3603 if rows.start >= rows.end {
3604 return Vec::new();
3605 }
3606 if !base_background.is_opaque() {
3607 // We don't actually know what color is behind this editor.
3608 return Vec::new();
3609 }
3610 let highlight_iter = highlight_ranges.iter().cloned();
3611 let selection_iter = selections.iter().flat_map(|(player_color, layouts)| {
3612 let color = player_color.selection;
3613 layouts.iter().filter_map(move |selection_layout| {
3614 if selection_layout.range.start != selection_layout.range.end {
3615 Some((selection_layout.range.clone(), color))
3616 } else {
3617 None
3618 }
3619 })
3620 });
3621 let mut per_row_map = vec![Vec::new(); rows.len()];
3622 for (range, color) in highlight_iter.chain(selection_iter) {
3623 let covered_rows = if range.end.column() == 0 {
3624 cmp::max(range.start.row(), rows.start)..cmp::min(range.end.row(), rows.end)
3625 } else {
3626 cmp::max(range.start.row(), rows.start)
3627 ..cmp::min(range.end.row().next_row(), rows.end)
3628 };
3629 for row in covered_rows.iter_rows() {
3630 let seg_start = if row == range.start.row() {
3631 range.start
3632 } else {
3633 DisplayPoint::new(row, 0)
3634 };
3635 let seg_end = if row == range.end.row() && range.end.column() != 0 {
3636 range.end
3637 } else {
3638 DisplayPoint::new(row, u32::MAX)
3639 };
3640 let ix = row.minus(rows.start) as usize;
3641 debug_assert!(row >= rows.start && row < rows.end);
3642 debug_assert!(ix < per_row_map.len());
3643 per_row_map[ix].push((seg_start..seg_end, color));
3644 }
3645 }
3646 for row_segments in per_row_map.iter_mut() {
3647 if row_segments.is_empty() {
3648 continue;
3649 }
3650 let segments = mem::take(row_segments);
3651 let merged = Self::merge_overlapping_ranges(segments, base_background);
3652 *row_segments = merged;
3653 }
3654 per_row_map
3655 }
3656
3657 /// Merge overlapping ranges by splitting at all range boundaries and blending colors where
3658 /// multiple ranges overlap. The result contains non-overlapping ranges ordered from left to right.
3659 ///
3660 /// Expects `start.row() == end.row()` for each range.
3661 fn merge_overlapping_ranges(
3662 ranges: Vec<(Range<DisplayPoint>, Hsla)>,
3663 base_background: Hsla,
3664 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
3665 struct Boundary {
3666 pos: DisplayPoint,
3667 is_start: bool,
3668 index: usize,
3669 color: Hsla,
3670 }
3671
3672 let mut boundaries: SmallVec<[Boundary; 16]> = SmallVec::with_capacity(ranges.len() * 2);
3673 for (index, (range, color)) in ranges.iter().enumerate() {
3674 debug_assert!(
3675 range.start.row() == range.end.row(),
3676 "expects single-row ranges"
3677 );
3678 if range.start < range.end {
3679 boundaries.push(Boundary {
3680 pos: range.start,
3681 is_start: true,
3682 index,
3683 color: *color,
3684 });
3685 boundaries.push(Boundary {
3686 pos: range.end,
3687 is_start: false,
3688 index,
3689 color: *color,
3690 });
3691 }
3692 }
3693
3694 if boundaries.is_empty() {
3695 return Vec::new();
3696 }
3697
3698 boundaries
3699 .sort_unstable_by(|a, b| a.pos.cmp(&b.pos).then_with(|| a.is_start.cmp(&b.is_start)));
3700
3701 let mut processed_ranges: Vec<(Range<DisplayPoint>, Hsla)> = Vec::new();
3702 let mut active_ranges: SmallVec<[(usize, Hsla); 8]> = SmallVec::new();
3703
3704 let mut i = 0;
3705 let mut start_pos = boundaries[0].pos;
3706
3707 let boundaries_len = boundaries.len();
3708 while i < boundaries_len {
3709 let current_boundary_pos = boundaries[i].pos;
3710 if start_pos < current_boundary_pos {
3711 if !active_ranges.is_empty() {
3712 let mut color = base_background;
3713 for &(_, c) in &active_ranges {
3714 color = Hsla::blend(color, c);
3715 }
3716 if let Some((last_range, last_color)) = processed_ranges.last_mut() {
3717 if *last_color == color && last_range.end == start_pos {
3718 last_range.end = current_boundary_pos;
3719 } else {
3720 processed_ranges.push((start_pos..current_boundary_pos, color));
3721 }
3722 } else {
3723 processed_ranges.push((start_pos..current_boundary_pos, color));
3724 }
3725 }
3726 }
3727 while i < boundaries_len && boundaries[i].pos == current_boundary_pos {
3728 let active_range = &boundaries[i];
3729 if active_range.is_start {
3730 let idx = active_range.index;
3731 let pos = active_ranges
3732 .binary_search_by_key(&idx, |(i, _)| *i)
3733 .unwrap_or_else(|p| p);
3734 active_ranges.insert(pos, (idx, active_range.color));
3735 } else {
3736 let idx = active_range.index;
3737 if let Ok(pos) = active_ranges.binary_search_by_key(&idx, |(i, _)| *i) {
3738 active_ranges.remove(pos);
3739 }
3740 }
3741 i += 1;
3742 }
3743 start_pos = current_boundary_pos;
3744 }
3745
3746 processed_ranges
3747 }
3748
3749 fn layout_lines(
3750 rows: Range<DisplayRow>,
3751 snapshot: &EditorSnapshot,
3752 style: &EditorStyle,
3753 editor_width: Pixels,
3754 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3755 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
3756 window: &mut Window,
3757 cx: &mut App,
3758 ) -> Vec<LineWithInvisibles> {
3759 if rows.start >= rows.end {
3760 return Vec::new();
3761 }
3762
3763 // Show the placeholder when the editor is empty
3764 if snapshot.is_empty() {
3765 let font_size = style.text.font_size.to_pixels(window.rem_size());
3766 let placeholder_color = cx.theme().colors().text_placeholder;
3767 let placeholder_text = snapshot.placeholder_text();
3768
3769 let placeholder_lines = placeholder_text
3770 .as_ref()
3771 .map_or(Vec::new(), |text| text.split('\n').collect::<Vec<_>>());
3772
3773 let placeholder_line_count = placeholder_lines.len();
3774
3775 placeholder_lines
3776 .into_iter()
3777 .skip(rows.start.0 as usize)
3778 .chain(iter::repeat(""))
3779 .take(cmp::max(rows.len(), placeholder_line_count))
3780 .map(move |line| {
3781 let run = TextRun {
3782 len: line.len(),
3783 font: style.text.font(),
3784 color: placeholder_color,
3785 ..Default::default()
3786 };
3787 let line = window.text_system().shape_line(
3788 line.to_string().into(),
3789 font_size,
3790 &[run],
3791 None,
3792 );
3793 LineWithInvisibles {
3794 width: line.width,
3795 len: line.len,
3796 fragments: smallvec![LineFragment::Text(line)],
3797 invisibles: Vec::new(),
3798 font_size,
3799 }
3800 })
3801 .collect()
3802 } else {
3803 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
3804 LineWithInvisibles::from_chunks(
3805 chunks,
3806 style,
3807 MAX_LINE_LEN,
3808 rows.len(),
3809 &snapshot.mode,
3810 editor_width,
3811 is_row_soft_wrapped,
3812 bg_segments_per_row,
3813 window,
3814 cx,
3815 )
3816 }
3817 }
3818
3819 fn prepaint_lines(
3820 &self,
3821 start_row: DisplayRow,
3822 line_layouts: &mut [LineWithInvisibles],
3823 line_height: Pixels,
3824 scroll_position: gpui::Point<ScrollOffset>,
3825 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
3826 content_origin: gpui::Point<Pixels>,
3827 window: &mut Window,
3828 cx: &mut App,
3829 ) -> SmallVec<[AnyElement; 1]> {
3830 let mut line_elements = SmallVec::new();
3831 for (ix, line) in line_layouts.iter_mut().enumerate() {
3832 let row = start_row + DisplayRow(ix as u32);
3833 line.prepaint(
3834 line_height,
3835 scroll_position,
3836 scroll_pixel_position,
3837 row,
3838 content_origin,
3839 &mut line_elements,
3840 window,
3841 cx,
3842 );
3843 }
3844 line_elements
3845 }
3846
3847 fn render_block(
3848 &self,
3849 block: &Block,
3850 available_width: AvailableSpace,
3851 block_id: BlockId,
3852 block_row_start: DisplayRow,
3853 snapshot: &EditorSnapshot,
3854 text_x: Pixels,
3855 rows: &Range<DisplayRow>,
3856 line_layouts: &[LineWithInvisibles],
3857 editor_margins: &EditorMargins,
3858 line_height: Pixels,
3859 em_width: Pixels,
3860 text_hitbox: &Hitbox,
3861 editor_width: Pixels,
3862 scroll_width: &mut Pixels,
3863 resized_blocks: &mut HashMap<CustomBlockId, u32>,
3864 row_block_types: &mut HashMap<DisplayRow, bool>,
3865 selections: &[Selection<Point>],
3866 selected_buffer_ids: &Vec<BufferId>,
3867 latest_selection_anchors: &HashMap<BufferId, Anchor>,
3868 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3869 sticky_header_excerpt_id: Option<ExcerptId>,
3870 block_resize_offset: &mut i32,
3871 window: &mut Window,
3872 cx: &mut App,
3873 ) -> Option<(AnyElement, Size<Pixels>, DisplayRow, Pixels)> {
3874 let mut x_position = None;
3875 let mut element = match block {
3876 Block::Custom(custom) => {
3877 let block_start = custom.start().to_point(&snapshot.buffer_snapshot());
3878 let block_end = custom.end().to_point(&snapshot.buffer_snapshot());
3879 if block.place_near() && snapshot.is_line_folded(MultiBufferRow(block_start.row)) {
3880 return None;
3881 }
3882 let align_to = block_start.to_display_point(snapshot);
3883 let x_and_width = |layout: &LineWithInvisibles| {
3884 Some((
3885 text_x + layout.x_for_index(align_to.column() as usize),
3886 text_x + layout.width,
3887 ))
3888 };
3889 let line_ix = align_to.row().0.checked_sub(rows.start.0);
3890 x_position =
3891 if let Some(layout) = line_ix.and_then(|ix| line_layouts.get(ix as usize)) {
3892 x_and_width(layout)
3893 } else {
3894 x_and_width(&layout_line(
3895 align_to.row(),
3896 snapshot,
3897 &self.style,
3898 editor_width,
3899 is_row_soft_wrapped,
3900 window,
3901 cx,
3902 ))
3903 };
3904
3905 let anchor_x = x_position.unwrap().0;
3906
3907 let selected = selections
3908 .binary_search_by(|selection| {
3909 if selection.end <= block_start {
3910 Ordering::Less
3911 } else if selection.start >= block_end {
3912 Ordering::Greater
3913 } else {
3914 Ordering::Equal
3915 }
3916 })
3917 .is_ok();
3918
3919 div()
3920 .size_full()
3921 .child(custom.render(&mut BlockContext {
3922 window,
3923 app: cx,
3924 anchor_x,
3925 margins: editor_margins,
3926 line_height,
3927 em_width,
3928 block_id,
3929 selected,
3930 max_width: text_hitbox.size.width.max(*scroll_width),
3931 editor_style: &self.style,
3932 }))
3933 .into_any()
3934 }
3935
3936 Block::FoldedBuffer {
3937 first_excerpt,
3938 height,
3939 ..
3940 } => {
3941 let mut result = v_flex().id(block_id).w_full().pr(editor_margins.right);
3942
3943 if self.should_show_buffer_headers() {
3944 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
3945 let jump_data = header_jump_data(
3946 snapshot,
3947 block_row_start,
3948 *height,
3949 first_excerpt,
3950 latest_selection_anchors,
3951 );
3952 result = result.child(self.render_buffer_header(
3953 first_excerpt,
3954 true,
3955 selected,
3956 false,
3957 jump_data,
3958 window,
3959 cx,
3960 ));
3961 } else {
3962 result =
3963 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
3964 }
3965
3966 result.into_any_element()
3967 }
3968
3969 Block::ExcerptBoundary { .. } => {
3970 let color = cx.theme().colors().clone();
3971 let mut result = v_flex().id(block_id).w_full();
3972
3973 result = result.child(
3974 h_flex().relative().child(
3975 div()
3976 .top(line_height / 2.)
3977 .absolute()
3978 .w_full()
3979 .h_px()
3980 .bg(color.border_variant),
3981 ),
3982 );
3983
3984 result.into_any()
3985 }
3986
3987 Block::BufferHeader { excerpt, height } => {
3988 let mut result = v_flex().id(block_id).w_full();
3989
3990 if self.should_show_buffer_headers() {
3991 let jump_data = header_jump_data(
3992 snapshot,
3993 block_row_start,
3994 *height,
3995 excerpt,
3996 latest_selection_anchors,
3997 );
3998
3999 if sticky_header_excerpt_id != Some(excerpt.id) {
4000 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
4001
4002 result = result.child(div().pr(editor_margins.right).child(
4003 self.render_buffer_header(
4004 excerpt, false, selected, false, jump_data, window, cx,
4005 ),
4006 ));
4007 } else {
4008 result =
4009 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
4010 }
4011 } else {
4012 result =
4013 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
4014 }
4015
4016 result.into_any()
4017 }
4018
4019 Block::Spacer { height, .. } => div()
4020 .id(block_id)
4021 .w_full()
4022 .h((*height as f32) * line_height)
4023 .bg(pattern_slash(rgba(0xFFFFFF10), 8.0, 8.0))
4024 .into_any(),
4025 };
4026
4027 // Discover the element's content height, then round up to the nearest multiple of line height.
4028 let preliminary_size = element.layout_as_root(
4029 size(available_width, AvailableSpace::MinContent),
4030 window,
4031 cx,
4032 );
4033 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
4034 let final_size = if preliminary_size.height == quantized_height {
4035 preliminary_size
4036 } else {
4037 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
4038 };
4039 let mut element_height_in_lines = ((final_size.height / line_height).ceil() as u32).max(1);
4040
4041 let effective_row_start = block_row_start.0 as i32 + *block_resize_offset;
4042 debug_assert!(effective_row_start >= 0);
4043 let mut row = DisplayRow(effective_row_start.max(0) as u32);
4044
4045 let mut x_offset = px(0.);
4046 let mut is_block = true;
4047
4048 if let BlockId::Custom(custom_block_id) = block_id
4049 && block.has_height()
4050 {
4051 if block.place_near()
4052 && let Some((x_target, line_width)) = x_position
4053 {
4054 let margin = em_width * 2;
4055 if line_width + final_size.width + margin
4056 < editor_width + editor_margins.gutter.full_width()
4057 && !row_block_types.contains_key(&(row - 1))
4058 && element_height_in_lines == 1
4059 {
4060 x_offset = line_width + margin;
4061 row = row - 1;
4062 is_block = false;
4063 element_height_in_lines = 0;
4064 row_block_types.insert(row, is_block);
4065 } else {
4066 let max_offset =
4067 editor_width + editor_margins.gutter.full_width() - final_size.width;
4068 let min_offset = (x_target + em_width - final_size.width)
4069 .max(editor_margins.gutter.full_width());
4070 x_offset = x_target.min(max_offset).max(min_offset);
4071 }
4072 };
4073 if element_height_in_lines != block.height() {
4074 *block_resize_offset += element_height_in_lines as i32 - block.height() as i32;
4075 resized_blocks.insert(custom_block_id, element_height_in_lines);
4076 }
4077 }
4078 for i in 0..element_height_in_lines {
4079 row_block_types.insert(row + i, is_block);
4080 }
4081
4082 Some((element, final_size, row, x_offset))
4083 }
4084
4085 fn render_buffer_header(
4086 &self,
4087 for_excerpt: &ExcerptInfo,
4088 is_folded: bool,
4089 is_selected: bool,
4090 is_sticky: bool,
4091 jump_data: JumpData,
4092 window: &mut Window,
4093 cx: &mut App,
4094 ) -> impl IntoElement {
4095 let editor = self.editor.read(cx);
4096 let multi_buffer = editor.buffer.read(cx);
4097 let is_read_only = self.editor.read(cx).read_only(cx);
4098 let editor_handle: &dyn ItemHandle = &self.editor;
4099
4100 let breadcrumbs = if is_selected {
4101 editor.breadcrumbs_inner(cx.theme(), cx)
4102 } else {
4103 None
4104 };
4105
4106 let file_status = multi_buffer
4107 .all_diff_hunks_expanded()
4108 .then(|| editor.status_for_buffer_id(for_excerpt.buffer_id, cx))
4109 .flatten();
4110 let indicator = multi_buffer
4111 .buffer(for_excerpt.buffer_id)
4112 .and_then(|buffer| {
4113 let buffer = buffer.read(cx);
4114 let indicator_color = match (buffer.has_conflict(), buffer.is_dirty()) {
4115 (true, _) => Some(Color::Warning),
4116 (_, true) => Some(Color::Accent),
4117 (false, false) => None,
4118 };
4119 indicator_color.map(|indicator_color| Indicator::dot().color(indicator_color))
4120 });
4121
4122 let include_root = editor
4123 .project
4124 .as_ref()
4125 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
4126 .unwrap_or_default();
4127 let file = for_excerpt.buffer.file();
4128 let can_open_excerpts = file.is_none_or(|file| file.can_open());
4129 let path_style = file.map(|file| file.path_style(cx));
4130 let relative_path = for_excerpt.buffer.resolve_file_path(include_root, cx);
4131 let (parent_path, filename) = if let Some(path) = &relative_path {
4132 if let Some(path_style) = path_style {
4133 let (dir, file_name) = path_style.split(path);
4134 (dir.map(|dir| dir.to_owned()), Some(file_name.to_owned()))
4135 } else {
4136 (None, Some(path.clone()))
4137 }
4138 } else {
4139 (None, None)
4140 };
4141 let focus_handle = editor.focus_handle(cx);
4142 let colors = cx.theme().colors();
4143
4144 let header = div()
4145 .p_1()
4146 .w_full()
4147 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
4148 .child(
4149 h_flex()
4150 .size_full()
4151 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
4152 .pl_1()
4153 .pr_2()
4154 .rounded_sm()
4155 .gap_1p5()
4156 .when(is_sticky, |el| el.shadow_md())
4157 .border_1()
4158 .map(|border| {
4159 let border_color = if is_selected
4160 && is_folded
4161 && focus_handle.contains_focused(window, cx)
4162 {
4163 colors.border_focused
4164 } else {
4165 colors.border
4166 };
4167 border.border_color(border_color)
4168 })
4169 .bg(colors.editor_subheader_background)
4170 .hover(|style| style.bg(colors.element_hover))
4171 .map(|header| {
4172 let editor = self.editor.clone();
4173 let buffer_id = for_excerpt.buffer_id;
4174 let toggle_chevron_icon =
4175 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
4176 let button_size = rems_from_px(28.);
4177
4178 header.child(
4179 div()
4180 .hover(|style| style.bg(colors.element_selected))
4181 .rounded_xs()
4182 .child(
4183 ButtonLike::new("toggle-buffer-fold")
4184 .style(ButtonStyle::Transparent)
4185 .height(button_size.into())
4186 .width(button_size)
4187 .children(toggle_chevron_icon)
4188 .tooltip({
4189 let focus_handle = focus_handle.clone();
4190 let is_folded_for_tooltip = is_folded;
4191 move |_window, cx| {
4192 Tooltip::with_meta_in(
4193 if is_folded_for_tooltip {
4194 "Unfold Excerpt"
4195 } else {
4196 "Fold Excerpt"
4197 },
4198 Some(&ToggleFold),
4199 format!(
4200 "{} to toggle all",
4201 text_for_keystroke(
4202 &Modifiers::alt(),
4203 "click",
4204 cx
4205 )
4206 ),
4207 &focus_handle,
4208 cx,
4209 )
4210 }
4211 })
4212 .on_click(move |event, window, cx| {
4213 if event.modifiers().alt {
4214 // Alt+click toggles all buffers
4215 editor.update(cx, |editor, cx| {
4216 editor.toggle_fold_all(
4217 &ToggleFoldAll,
4218 window,
4219 cx,
4220 );
4221 });
4222 } else {
4223 // Regular click toggles single buffer
4224 if is_folded {
4225 editor.update(cx, |editor, cx| {
4226 editor.unfold_buffer(buffer_id, cx);
4227 });
4228 } else {
4229 editor.update(cx, |editor, cx| {
4230 editor.fold_buffer(buffer_id, cx);
4231 });
4232 }
4233 }
4234 }),
4235 ),
4236 )
4237 })
4238 .children(
4239 editor
4240 .addons
4241 .values()
4242 .filter_map(|addon| {
4243 addon.render_buffer_header_controls(for_excerpt, window, cx)
4244 })
4245 .take(1),
4246 )
4247 .when(!is_read_only, |this| {
4248 this.child(
4249 h_flex()
4250 .size_3()
4251 .justify_center()
4252 .flex_shrink_0()
4253 .children(indicator),
4254 )
4255 })
4256 .child(
4257 h_flex()
4258 .cursor_pointer()
4259 .id("path_header_block")
4260 .min_w_0()
4261 .size_full()
4262 .gap_1()
4263 .justify_between()
4264 .overflow_hidden()
4265 .child(h_flex().min_w_0().flex_1().gap_0p5().overflow_hidden().map(
4266 |path_header| {
4267 let filename = filename
4268 .map(SharedString::from)
4269 .unwrap_or_else(|| "untitled".into());
4270
4271 let full_path = match parent_path.as_deref() {
4272 Some(parent) if !parent.is_empty() => {
4273 format!("{}{}", parent, filename.as_str())
4274 }
4275 _ => filename.as_str().to_string(),
4276 };
4277
4278 path_header
4279 .child(
4280 ButtonLike::new("filename-button")
4281 .when(
4282 ItemSettings::get_global(cx).file_icons,
4283 |this| {
4284 let path =
4285 path::Path::new(filename.as_str());
4286 let icon = FileIcons::get_icon(path, cx)
4287 .unwrap_or_default();
4288
4289 this.child(
4290 Icon::from_path(icon)
4291 .color(Color::Muted),
4292 )
4293 },
4294 )
4295 .child(
4296 Label::new(filename)
4297 .single_line()
4298 .color(file_status_label_color(file_status))
4299 .buffer_font(cx)
4300 .when(
4301 file_status
4302 .is_some_and(|s| s.is_deleted()),
4303 |label| label.strikethrough(),
4304 ),
4305 )
4306 .tooltip(move |_, cx| {
4307 Tooltip::with_meta(
4308 "Open File",
4309 None,
4310 full_path.clone(),
4311 cx,
4312 )
4313 })
4314 .on_click(window.listener_for(&self.editor, {
4315 let jump_data = jump_data.clone();
4316 move |editor, e: &ClickEvent, window, cx| {
4317 editor.open_excerpts_common(
4318 Some(jump_data.clone()),
4319 e.modifiers().secondary(),
4320 window,
4321 cx,
4322 );
4323 }
4324 })),
4325 )
4326 .when_some(parent_path, |then, path| {
4327 then.child(
4328 Label::new(path)
4329 .buffer_font(cx)
4330 .truncate_start()
4331 .color(
4332 if file_status
4333 .is_some_and(FileStatus::is_deleted)
4334 {
4335 Color::Custom(colors.text_disabled)
4336 } else {
4337 Color::Custom(colors.text_muted)
4338 },
4339 ),
4340 )
4341 })
4342 .when(!for_excerpt.buffer.capability.editable(), |el| {
4343 el.child(
4344 Icon::new(IconName::FileLock).color(Color::Muted),
4345 )
4346 })
4347 .when_some(breadcrumbs, |then, breadcrumbs| {
4348 then.child(render_breadcrumb_text(
4349 breadcrumbs,
4350 None,
4351 editor_handle,
4352 true,
4353 window,
4354 cx,
4355 ))
4356 })
4357 },
4358 ))
4359 .when(
4360 can_open_excerpts && is_selected && relative_path.is_some(),
4361 |el| {
4362 el.child(
4363 Button::new("open-file-button", "Open File")
4364 .style(ButtonStyle::OutlinedGhost)
4365 .key_binding(KeyBinding::for_action_in(
4366 &OpenExcerpts,
4367 &focus_handle,
4368 cx,
4369 ))
4370 .on_click(window.listener_for(&self.editor, {
4371 let jump_data = jump_data.clone();
4372 move |editor, e: &ClickEvent, window, cx| {
4373 editor.open_excerpts_common(
4374 Some(jump_data.clone()),
4375 e.modifiers().secondary(),
4376 window,
4377 cx,
4378 );
4379 }
4380 })),
4381 )
4382 },
4383 )
4384 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
4385 .on_click(window.listener_for(&self.editor, {
4386 let buffer_id = for_excerpt.buffer_id;
4387 move |editor, e: &ClickEvent, window, cx| {
4388 if e.modifiers().alt {
4389 editor.open_excerpts_common(
4390 Some(jump_data.clone()),
4391 e.modifiers().secondary(),
4392 window,
4393 cx,
4394 );
4395 return;
4396 }
4397
4398 if is_folded {
4399 editor.unfold_buffer(buffer_id, cx);
4400 } else {
4401 editor.fold_buffer(buffer_id, cx);
4402 }
4403 }
4404 })),
4405 ),
4406 );
4407
4408 let file = for_excerpt.buffer.file().cloned();
4409 let editor = self.editor.clone();
4410
4411 right_click_menu("buffer-header-context-menu")
4412 .trigger(move |_, _, _| header)
4413 .menu(move |window, cx| {
4414 let menu_context = focus_handle.clone();
4415 let editor = editor.clone();
4416 let file = file.clone();
4417 ContextMenu::build(window, cx, move |mut menu, window, cx| {
4418 if let Some(file) = file
4419 && let Some(project) = editor.read(cx).project()
4420 && let Some(worktree) =
4421 project.read(cx).worktree_for_id(file.worktree_id(cx), cx)
4422 {
4423 let path_style = file.path_style(cx);
4424 let worktree = worktree.read(cx);
4425 let relative_path = file.path();
4426 let entry_for_path = worktree.entry_for_path(relative_path);
4427 let abs_path = entry_for_path.map(|e| {
4428 e.canonical_path.as_deref().map_or_else(
4429 || worktree.absolutize(relative_path),
4430 Path::to_path_buf,
4431 )
4432 });
4433 let has_relative_path = worktree.root_entry().is_some_and(Entry::is_dir);
4434
4435 let parent_abs_path = abs_path
4436 .as_ref()
4437 .and_then(|abs_path| Some(abs_path.parent()?.to_path_buf()));
4438 let relative_path = has_relative_path
4439 .then_some(relative_path)
4440 .map(ToOwned::to_owned);
4441
4442 let visible_in_project_panel =
4443 relative_path.is_some() && worktree.is_visible();
4444 let reveal_in_project_panel = entry_for_path
4445 .filter(|_| visible_in_project_panel)
4446 .map(|entry| entry.id);
4447 menu = menu
4448 .when_some(abs_path, |menu, abs_path| {
4449 menu.entry(
4450 "Copy Path",
4451 Some(Box::new(zed_actions::workspace::CopyPath)),
4452 window.handler_for(&editor, move |_, _, cx| {
4453 cx.write_to_clipboard(ClipboardItem::new_string(
4454 abs_path.to_string_lossy().into_owned(),
4455 ));
4456 }),
4457 )
4458 })
4459 .when_some(relative_path, |menu, relative_path| {
4460 menu.entry(
4461 "Copy Relative Path",
4462 Some(Box::new(zed_actions::workspace::CopyRelativePath)),
4463 window.handler_for(&editor, move |_, _, cx| {
4464 cx.write_to_clipboard(ClipboardItem::new_string(
4465 relative_path.display(path_style).to_string(),
4466 ));
4467 }),
4468 )
4469 })
4470 .when(
4471 reveal_in_project_panel.is_some() || parent_abs_path.is_some(),
4472 |menu| menu.separator(),
4473 )
4474 .when_some(reveal_in_project_panel, |menu, entry_id| {
4475 menu.entry(
4476 "Reveal In Project Panel",
4477 Some(Box::new(RevealInProjectPanel::default())),
4478 window.handler_for(&editor, move |editor, _, cx| {
4479 if let Some(project) = &mut editor.project {
4480 project.update(cx, |_, cx| {
4481 cx.emit(project::Event::RevealInProjectPanel(
4482 entry_id,
4483 ))
4484 });
4485 }
4486 }),
4487 )
4488 })
4489 .when_some(parent_abs_path, |menu, parent_abs_path| {
4490 menu.entry(
4491 "Open in Terminal",
4492 Some(Box::new(OpenInTerminal)),
4493 window.handler_for(&editor, move |_, window, cx| {
4494 window.dispatch_action(
4495 OpenTerminal {
4496 working_directory: parent_abs_path.clone(),
4497 local: false,
4498 }
4499 .boxed_clone(),
4500 cx,
4501 );
4502 }),
4503 )
4504 });
4505 }
4506
4507 menu.context(menu_context)
4508 })
4509 })
4510 }
4511
4512 fn render_blocks(
4513 &self,
4514 rows: Range<DisplayRow>,
4515 snapshot: &EditorSnapshot,
4516 hitbox: &Hitbox,
4517 text_hitbox: &Hitbox,
4518 editor_width: Pixels,
4519 scroll_width: &mut Pixels,
4520 editor_margins: &EditorMargins,
4521 em_width: Pixels,
4522 text_x: Pixels,
4523 line_height: Pixels,
4524 line_layouts: &mut [LineWithInvisibles],
4525 selections: &[Selection<Point>],
4526 selected_buffer_ids: &Vec<BufferId>,
4527 latest_selection_anchors: &HashMap<BufferId, Anchor>,
4528 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4529 sticky_header_excerpt_id: Option<ExcerptId>,
4530 window: &mut Window,
4531 cx: &mut App,
4532 ) -> RenderBlocksOutput {
4533 let (fixed_blocks, non_fixed_blocks) = snapshot
4534 .blocks_in_range(rows.clone())
4535 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
4536
4537 let mut focused_block = self
4538 .editor
4539 .update(cx, |editor, _| editor.take_focused_block());
4540 let mut fixed_block_max_width = Pixels::ZERO;
4541 let mut blocks = Vec::new();
4542 let mut resized_blocks = HashMap::default();
4543 let mut row_block_types = HashMap::default();
4544 let mut block_resize_offset: i32 = 0;
4545
4546 for (row, block) in fixed_blocks {
4547 let block_id = block.id();
4548
4549 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4550 focused_block = None;
4551 }
4552
4553 if let Some((element, element_size, row, x_offset)) = self.render_block(
4554 block,
4555 AvailableSpace::MinContent,
4556 block_id,
4557 row,
4558 snapshot,
4559 text_x,
4560 &rows,
4561 line_layouts,
4562 editor_margins,
4563 line_height,
4564 em_width,
4565 text_hitbox,
4566 editor_width,
4567 scroll_width,
4568 &mut resized_blocks,
4569 &mut row_block_types,
4570 selections,
4571 selected_buffer_ids,
4572 latest_selection_anchors,
4573 is_row_soft_wrapped,
4574 sticky_header_excerpt_id,
4575 &mut block_resize_offset,
4576 window,
4577 cx,
4578 ) {
4579 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
4580 blocks.push(BlockLayout {
4581 id: block_id,
4582 x_offset,
4583 row: Some(row),
4584 element,
4585 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
4586 style: BlockStyle::Fixed,
4587 overlaps_gutter: true,
4588 is_buffer_header: block.is_buffer_header(),
4589 });
4590 }
4591 }
4592
4593 for (row, block) in non_fixed_blocks {
4594 let style = block.style();
4595 let width = match (style, block.place_near()) {
4596 (_, true) => AvailableSpace::MinContent,
4597 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
4598 (BlockStyle::Flex, _) => hitbox
4599 .size
4600 .width
4601 .max(fixed_block_max_width)
4602 .max(editor_margins.gutter.width + *scroll_width)
4603 .into(),
4604 (BlockStyle::Fixed, _) => unreachable!(),
4605 };
4606 let block_id = block.id();
4607
4608 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4609 focused_block = None;
4610 }
4611
4612 if let Some((element, element_size, row, x_offset)) = self.render_block(
4613 block,
4614 width,
4615 block_id,
4616 row,
4617 snapshot,
4618 text_x,
4619 &rows,
4620 line_layouts,
4621 editor_margins,
4622 line_height,
4623 em_width,
4624 text_hitbox,
4625 editor_width,
4626 scroll_width,
4627 &mut resized_blocks,
4628 &mut row_block_types,
4629 selections,
4630 selected_buffer_ids,
4631 latest_selection_anchors,
4632 is_row_soft_wrapped,
4633 sticky_header_excerpt_id,
4634 &mut block_resize_offset,
4635 window,
4636 cx,
4637 ) {
4638 blocks.push(BlockLayout {
4639 id: block_id,
4640 x_offset,
4641 row: Some(row),
4642 element,
4643 available_space: size(width, element_size.height.into()),
4644 style,
4645 overlaps_gutter: !block.place_near(),
4646 is_buffer_header: block.is_buffer_header(),
4647 });
4648 }
4649 }
4650
4651 if let Some(focused_block) = focused_block
4652 && let Some(focus_handle) = focused_block.focus_handle.upgrade()
4653 && focus_handle.is_focused(window)
4654 && let Some(block) = snapshot.block_for_id(focused_block.id)
4655 {
4656 let style = block.style();
4657 let width = match style {
4658 BlockStyle::Fixed => AvailableSpace::MinContent,
4659 BlockStyle::Flex => AvailableSpace::Definite(
4660 hitbox
4661 .size
4662 .width
4663 .max(fixed_block_max_width)
4664 .max(editor_margins.gutter.width + *scroll_width),
4665 ),
4666 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
4667 };
4668
4669 if let Some((element, element_size, _, x_offset)) = self.render_block(
4670 &block,
4671 width,
4672 focused_block.id,
4673 rows.end,
4674 snapshot,
4675 text_x,
4676 &rows,
4677 line_layouts,
4678 editor_margins,
4679 line_height,
4680 em_width,
4681 text_hitbox,
4682 editor_width,
4683 scroll_width,
4684 &mut resized_blocks,
4685 &mut row_block_types,
4686 selections,
4687 selected_buffer_ids,
4688 latest_selection_anchors,
4689 is_row_soft_wrapped,
4690 sticky_header_excerpt_id,
4691 &mut block_resize_offset,
4692 window,
4693 cx,
4694 ) {
4695 blocks.push(BlockLayout {
4696 id: block.id(),
4697 x_offset,
4698 row: None,
4699 element,
4700 available_space: size(width, element_size.height.into()),
4701 style,
4702 overlaps_gutter: true,
4703 is_buffer_header: block.is_buffer_header(),
4704 });
4705 }
4706 }
4707
4708 if resized_blocks.is_empty() {
4709 *scroll_width =
4710 (*scroll_width).max(fixed_block_max_width - editor_margins.gutter.width);
4711 }
4712
4713 RenderBlocksOutput {
4714 blocks,
4715 row_block_types,
4716 resized_blocks: (!resized_blocks.is_empty()).then_some(resized_blocks),
4717 }
4718 }
4719
4720 fn layout_blocks(
4721 &self,
4722 blocks: &mut Vec<BlockLayout>,
4723 hitbox: &Hitbox,
4724 line_height: Pixels,
4725 scroll_position: gpui::Point<ScrollOffset>,
4726 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4727 window: &mut Window,
4728 cx: &mut App,
4729 ) {
4730 for block in blocks {
4731 let mut origin = if let Some(row) = block.row {
4732 hitbox.origin
4733 + point(
4734 block.x_offset,
4735 Pixels::from(
4736 (row.as_f64() - scroll_position.y)
4737 * ScrollPixelOffset::from(line_height),
4738 ),
4739 )
4740 } else {
4741 // Position the block outside the visible area
4742 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
4743 };
4744
4745 if !matches!(block.style, BlockStyle::Sticky) {
4746 origin += point(Pixels::from(-scroll_pixel_position.x), Pixels::ZERO);
4747 }
4748
4749 let focus_handle =
4750 block
4751 .element
4752 .prepaint_as_root(origin, block.available_space, window, cx);
4753
4754 if let Some(focus_handle) = focus_handle {
4755 self.editor.update(cx, |editor, _cx| {
4756 editor.set_focused_block(FocusedBlock {
4757 id: block.id,
4758 focus_handle: focus_handle.downgrade(),
4759 });
4760 });
4761 }
4762 }
4763 }
4764
4765 fn layout_sticky_buffer_header(
4766 &self,
4767 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
4768 scroll_position: gpui::Point<ScrollOffset>,
4769 line_height: Pixels,
4770 right_margin: Pixels,
4771 snapshot: &EditorSnapshot,
4772 hitbox: &Hitbox,
4773 selected_buffer_ids: &Vec<BufferId>,
4774 blocks: &[BlockLayout],
4775 latest_selection_anchors: &HashMap<BufferId, Anchor>,
4776 window: &mut Window,
4777 cx: &mut App,
4778 ) -> AnyElement {
4779 let jump_data = header_jump_data(
4780 snapshot,
4781 DisplayRow(scroll_position.y as u32),
4782 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
4783 excerpt,
4784 latest_selection_anchors,
4785 );
4786
4787 let editor_bg_color = cx.theme().colors().editor_background;
4788
4789 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
4790
4791 let available_width = hitbox.bounds.size.width - right_margin;
4792
4793 let mut header = v_flex()
4794 .w_full()
4795 .relative()
4796 .child(
4797 div()
4798 .w(available_width)
4799 .h(FILE_HEADER_HEIGHT as f32 * line_height)
4800 .bg(linear_gradient(
4801 0.,
4802 linear_color_stop(editor_bg_color.opacity(0.), 0.),
4803 linear_color_stop(editor_bg_color, 0.6),
4804 ))
4805 .absolute()
4806 .top_0(),
4807 )
4808 .child(
4809 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
4810 .into_any_element(),
4811 )
4812 .into_any_element();
4813
4814 let mut origin = hitbox.origin;
4815 // Move floating header up to avoid colliding with the next buffer header.
4816 for block in blocks.iter() {
4817 if !block.is_buffer_header {
4818 continue;
4819 }
4820
4821 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position.y as u32) else {
4822 continue;
4823 };
4824
4825 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
4826 let offset = scroll_position.y - max_row as f64;
4827
4828 if offset > 0.0 {
4829 origin.y -= Pixels::from(offset * ScrollPixelOffset::from(line_height));
4830 }
4831 break;
4832 }
4833
4834 let size = size(
4835 AvailableSpace::Definite(available_width),
4836 AvailableSpace::MinContent,
4837 );
4838
4839 header.prepaint_as_root(origin, size, window, cx);
4840
4841 header
4842 }
4843
4844 fn layout_sticky_headers(
4845 &self,
4846 snapshot: &EditorSnapshot,
4847 editor_width: Pixels,
4848 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4849 line_height: Pixels,
4850 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4851 content_origin: gpui::Point<Pixels>,
4852 gutter_dimensions: &GutterDimensions,
4853 gutter_hitbox: &Hitbox,
4854 text_hitbox: &Hitbox,
4855 style: &EditorStyle,
4856 relative_line_numbers: RelativeLineNumbers,
4857 relative_to: Option<DisplayRow>,
4858 window: &mut Window,
4859 cx: &mut App,
4860 ) -> Option<StickyHeaders> {
4861 let show_line_numbers = snapshot
4862 .show_line_numbers
4863 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
4864
4865 let rows = Self::sticky_headers(self.editor.read(cx), snapshot, style, cx);
4866
4867 let mut lines = Vec::<StickyHeaderLine>::new();
4868
4869 for StickyHeader {
4870 item,
4871 sticky_row,
4872 start_point,
4873 offset,
4874 } in rows.into_iter().rev()
4875 {
4876 let line = layout_line(
4877 sticky_row,
4878 snapshot,
4879 &self.style,
4880 editor_width,
4881 is_row_soft_wrapped,
4882 window,
4883 cx,
4884 );
4885
4886 let line_number = show_line_numbers.then(|| {
4887 let start_display_row = start_point.to_display_point(snapshot).row();
4888 let relative_number = relative_to
4889 .filter(|_| relative_line_numbers != RelativeLineNumbers::Disabled)
4890 .map(|base| {
4891 snapshot.relative_line_delta(
4892 base,
4893 start_display_row,
4894 relative_line_numbers == RelativeLineNumbers::Wrapped,
4895 )
4896 });
4897 let number = relative_number
4898 .filter(|&delta| delta != 0)
4899 .map(|delta| delta.unsigned_abs() as u32)
4900 .unwrap_or(start_point.row + 1);
4901 let color = cx.theme().colors().editor_line_number;
4902 self.shape_line_number(SharedString::from(number.to_string()), color, window)
4903 });
4904
4905 lines.push(StickyHeaderLine::new(
4906 sticky_row,
4907 line_height * offset as f32,
4908 line,
4909 line_number,
4910 item.range.start,
4911 line_height,
4912 scroll_pixel_position,
4913 content_origin,
4914 gutter_hitbox,
4915 text_hitbox,
4916 window,
4917 cx,
4918 ));
4919 }
4920
4921 lines.reverse();
4922 if lines.is_empty() {
4923 return None;
4924 }
4925
4926 Some(StickyHeaders {
4927 lines,
4928 gutter_background: cx.theme().colors().editor_gutter_background,
4929 content_background: self.style.background,
4930 gutter_right_padding: gutter_dimensions.right_padding,
4931 })
4932 }
4933
4934 pub(crate) fn sticky_headers(
4935 editor: &Editor,
4936 snapshot: &EditorSnapshot,
4937 style: &EditorStyle,
4938 cx: &App,
4939 ) -> Vec<StickyHeader> {
4940 let scroll_top = snapshot.scroll_position().y;
4941
4942 let mut end_rows = Vec::<DisplayRow>::new();
4943 let mut rows = Vec::<StickyHeader>::new();
4944
4945 let items = editor.sticky_headers(style, cx).unwrap_or_default();
4946
4947 for item in items {
4948 let start_point = item.range.start.to_point(snapshot.buffer_snapshot());
4949 let end_point = item.range.end.to_point(snapshot.buffer_snapshot());
4950
4951 let sticky_row = snapshot
4952 .display_snapshot
4953 .point_to_display_point(start_point, Bias::Left)
4954 .row();
4955 let end_row = snapshot
4956 .display_snapshot
4957 .point_to_display_point(end_point, Bias::Left)
4958 .row();
4959 let max_sticky_row = end_row.previous_row();
4960 if max_sticky_row <= sticky_row {
4961 continue;
4962 }
4963
4964 while end_rows
4965 .last()
4966 .is_some_and(|&last_end| last_end <= sticky_row)
4967 {
4968 end_rows.pop();
4969 }
4970 let depth = end_rows.len();
4971 let adjusted_scroll_top = scroll_top + depth as f64;
4972
4973 if sticky_row.as_f64() >= adjusted_scroll_top || end_row.as_f64() <= adjusted_scroll_top
4974 {
4975 continue;
4976 }
4977
4978 let max_scroll_offset = max_sticky_row.as_f64() - scroll_top;
4979 let offset = (depth as f64).min(max_scroll_offset);
4980
4981 end_rows.push(end_row);
4982 rows.push(StickyHeader {
4983 item,
4984 sticky_row,
4985 start_point,
4986 offset,
4987 });
4988 }
4989
4990 rows
4991 }
4992
4993 fn layout_cursor_popovers(
4994 &self,
4995 line_height: Pixels,
4996 text_hitbox: &Hitbox,
4997 content_origin: gpui::Point<Pixels>,
4998 right_margin: Pixels,
4999 start_row: DisplayRow,
5000 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5001 line_layouts: &[LineWithInvisibles],
5002 cursor: DisplayPoint,
5003 cursor_point: Point,
5004 style: &EditorStyle,
5005 window: &mut Window,
5006 cx: &mut App,
5007 ) -> Option<ContextMenuLayout> {
5008 let mut min_menu_height = Pixels::ZERO;
5009 let mut max_menu_height = Pixels::ZERO;
5010 let mut height_above_menu = Pixels::ZERO;
5011 let height_below_menu = Pixels::ZERO;
5012 let mut edit_prediction_popover_visible = false;
5013 let mut context_menu_visible = false;
5014 let context_menu_placement;
5015
5016 {
5017 let editor = self.editor.read(cx);
5018 if editor.edit_prediction_visible_in_cursor_popover(editor.has_active_edit_prediction())
5019 {
5020 height_above_menu +=
5021 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
5022 edit_prediction_popover_visible = true;
5023 }
5024
5025 if editor.context_menu_visible()
5026 && let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin()
5027 {
5028 let (min_height_in_lines, max_height_in_lines) = editor
5029 .context_menu_options
5030 .as_ref()
5031 .map_or((3, 12), |options| {
5032 (options.min_entries_visible, options.max_entries_visible)
5033 });
5034
5035 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
5036 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
5037 context_menu_visible = true;
5038 }
5039 context_menu_placement = editor
5040 .context_menu_options
5041 .as_ref()
5042 .and_then(|options| options.placement.clone());
5043 }
5044
5045 let visible = edit_prediction_popover_visible || context_menu_visible;
5046 if !visible {
5047 return None;
5048 }
5049
5050 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
5051 let target_position = content_origin
5052 + gpui::Point {
5053 x: cmp::max(
5054 px(0.),
5055 Pixels::from(
5056 ScrollPixelOffset::from(
5057 cursor_row_layout.x_for_index(cursor.column() as usize),
5058 ) - scroll_pixel_position.x,
5059 ),
5060 ),
5061 y: cmp::max(
5062 px(0.),
5063 Pixels::from(
5064 cursor.row().next_row().as_f64() * ScrollPixelOffset::from(line_height)
5065 - scroll_pixel_position.y,
5066 ),
5067 ),
5068 };
5069
5070 let viewport_bounds =
5071 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
5072 right: -right_margin - MENU_GAP,
5073 ..Default::default()
5074 });
5075
5076 let min_height = height_above_menu + min_menu_height + height_below_menu;
5077 let max_height = height_above_menu + max_menu_height + height_below_menu;
5078 let (laid_out_popovers, y_flipped) = self.layout_popovers_above_or_below_line(
5079 target_position,
5080 line_height,
5081 min_height,
5082 max_height,
5083 context_menu_placement,
5084 text_hitbox,
5085 viewport_bounds,
5086 window,
5087 cx,
5088 |height, max_width_for_stable_x, y_flipped, window, cx| {
5089 // First layout the menu to get its size - others can be at least this wide.
5090 let context_menu = if context_menu_visible {
5091 let menu_height = if y_flipped {
5092 height - height_below_menu
5093 } else {
5094 height - height_above_menu
5095 };
5096 let mut element = self
5097 .render_context_menu(line_height, menu_height, window, cx)
5098 .expect("Visible context menu should always render.");
5099 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
5100 Some((CursorPopoverType::CodeContextMenu, element, size))
5101 } else {
5102 None
5103 };
5104 let min_width = context_menu
5105 .as_ref()
5106 .map_or(px(0.), |(_, _, size)| size.width);
5107 let max_width = max_width_for_stable_x.max(
5108 context_menu
5109 .as_ref()
5110 .map_or(px(0.), |(_, _, size)| size.width),
5111 );
5112
5113 let edit_prediction = if edit_prediction_popover_visible {
5114 self.editor.update(cx, move |editor, cx| {
5115 let accept_binding = editor.accept_edit_prediction_keybind(
5116 EditPredictionGranularity::Full,
5117 window,
5118 cx,
5119 );
5120 let mut element = editor.render_edit_prediction_cursor_popover(
5121 min_width,
5122 max_width,
5123 cursor_point,
5124 style,
5125 accept_binding.keystroke(),
5126 window,
5127 cx,
5128 )?;
5129 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
5130 Some((CursorPopoverType::EditPrediction, element, size))
5131 })
5132 } else {
5133 None
5134 };
5135 vec![edit_prediction, context_menu]
5136 .into_iter()
5137 .flatten()
5138 .collect::<Vec<_>>()
5139 },
5140 )?;
5141
5142 let (menu_ix, (_, menu_bounds)) = laid_out_popovers
5143 .iter()
5144 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))?;
5145 let last_ix = laid_out_popovers.len() - 1;
5146 let menu_is_last = menu_ix == last_ix;
5147 let first_popover_bounds = laid_out_popovers[0].1;
5148 let last_popover_bounds = laid_out_popovers[last_ix].1;
5149
5150 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
5151 // right, and otherwise it goes below or to the right.
5152 let mut target_bounds = Bounds::from_corners(
5153 first_popover_bounds.origin,
5154 last_popover_bounds.bottom_right(),
5155 );
5156 target_bounds.size.width = menu_bounds.size.width;
5157
5158 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
5159 // based on this is preferred for layout stability.
5160 let mut max_target_bounds = target_bounds;
5161 max_target_bounds.size.height = max_height;
5162 if y_flipped {
5163 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
5164 }
5165
5166 // Add spacing around `target_bounds` and `max_target_bounds`.
5167 let mut extend_amount = Edges::all(MENU_GAP);
5168 if y_flipped {
5169 extend_amount.bottom = line_height;
5170 } else {
5171 extend_amount.top = line_height;
5172 }
5173 let target_bounds = target_bounds.extend(extend_amount);
5174 let max_target_bounds = max_target_bounds.extend(extend_amount);
5175
5176 let must_place_above_or_below =
5177 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
5178 laid_out_popovers[menu_ix + 1..]
5179 .iter()
5180 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
5181 } else {
5182 false
5183 };
5184
5185 let aside_bounds = self.layout_context_menu_aside(
5186 y_flipped,
5187 *menu_bounds,
5188 target_bounds,
5189 max_target_bounds,
5190 max_menu_height,
5191 must_place_above_or_below,
5192 text_hitbox,
5193 viewport_bounds,
5194 window,
5195 cx,
5196 );
5197
5198 if let Some(menu_bounds) = laid_out_popovers.iter().find_map(|(popover_type, bounds)| {
5199 if matches!(popover_type, CursorPopoverType::CodeContextMenu) {
5200 Some(*bounds)
5201 } else {
5202 None
5203 }
5204 }) {
5205 let bounds = if let Some(aside_bounds) = aside_bounds {
5206 menu_bounds.union(&aside_bounds)
5207 } else {
5208 menu_bounds
5209 };
5210 return Some(ContextMenuLayout { y_flipped, bounds });
5211 }
5212
5213 None
5214 }
5215
5216 fn layout_gutter_menu(
5217 &self,
5218 line_height: Pixels,
5219 text_hitbox: &Hitbox,
5220 content_origin: gpui::Point<Pixels>,
5221 right_margin: Pixels,
5222 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5223 gutter_overshoot: Pixels,
5224 window: &mut Window,
5225 cx: &mut App,
5226 ) {
5227 let editor = self.editor.read(cx);
5228 if !editor.context_menu_visible() {
5229 return;
5230 }
5231 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
5232 editor.context_menu_origin()
5233 else {
5234 return;
5235 };
5236 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
5237 // indicator than just a plain first column of the text field.
5238 let target_position = content_origin
5239 + gpui::Point {
5240 x: -gutter_overshoot,
5241 y: Pixels::from(
5242 gutter_row.next_row().as_f64() * ScrollPixelOffset::from(line_height)
5243 - scroll_pixel_position.y,
5244 ),
5245 };
5246
5247 let (min_height_in_lines, max_height_in_lines) = editor
5248 .context_menu_options
5249 .as_ref()
5250 .map_or((3, 12), |options| {
5251 (options.min_entries_visible, options.max_entries_visible)
5252 });
5253
5254 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
5255 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
5256 let viewport_bounds =
5257 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
5258 right: -right_margin - MENU_GAP,
5259 ..Default::default()
5260 });
5261 self.layout_popovers_above_or_below_line(
5262 target_position,
5263 line_height,
5264 min_height,
5265 max_height,
5266 editor
5267 .context_menu_options
5268 .as_ref()
5269 .and_then(|options| options.placement.clone()),
5270 text_hitbox,
5271 viewport_bounds,
5272 window,
5273 cx,
5274 move |height, _max_width_for_stable_x, _, window, cx| {
5275 let mut element = self
5276 .render_context_menu(line_height, height, window, cx)
5277 .expect("Visible context menu should always render.");
5278 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
5279 vec![(CursorPopoverType::CodeContextMenu, element, size)]
5280 },
5281 );
5282 }
5283
5284 fn layout_popovers_above_or_below_line(
5285 &self,
5286 target_position: gpui::Point<Pixels>,
5287 line_height: Pixels,
5288 min_height: Pixels,
5289 max_height: Pixels,
5290 placement: Option<ContextMenuPlacement>,
5291 text_hitbox: &Hitbox,
5292 viewport_bounds: Bounds<Pixels>,
5293 window: &mut Window,
5294 cx: &mut App,
5295 make_sized_popovers: impl FnOnce(
5296 Pixels,
5297 Pixels,
5298 bool,
5299 &mut Window,
5300 &mut App,
5301 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
5302 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
5303 let text_style = TextStyleRefinement {
5304 line_height: Some(DefiniteLength::Fraction(
5305 BufferLineHeight::Comfortable.value(),
5306 )),
5307 ..Default::default()
5308 };
5309 window.with_text_style(Some(text_style), |window| {
5310 // If the max height won't fit below and there is more space above, put it above the line.
5311 let bottom_y_when_flipped = target_position.y - line_height;
5312 let available_above = bottom_y_when_flipped - text_hitbox.top();
5313 let available_below = text_hitbox.bottom() - target_position.y;
5314 let y_overflows_below = max_height > available_below;
5315 let mut y_flipped = match placement {
5316 Some(ContextMenuPlacement::Above) => true,
5317 Some(ContextMenuPlacement::Below) => false,
5318 None => y_overflows_below && available_above > available_below,
5319 };
5320 let mut height = cmp::min(
5321 max_height,
5322 if y_flipped {
5323 available_above
5324 } else {
5325 available_below
5326 },
5327 );
5328
5329 // If the min height doesn't fit within text bounds, instead fit within the window.
5330 if height < min_height {
5331 let available_above = bottom_y_when_flipped;
5332 let available_below = viewport_bounds.bottom() - target_position.y;
5333 let (y_flipped_override, height_override) = match placement {
5334 Some(ContextMenuPlacement::Above) => {
5335 (true, cmp::min(available_above, min_height))
5336 }
5337 Some(ContextMenuPlacement::Below) => {
5338 (false, cmp::min(available_below, min_height))
5339 }
5340 None => {
5341 if available_below > min_height {
5342 (false, min_height)
5343 } else if available_above > min_height {
5344 (true, min_height)
5345 } else if available_above > available_below {
5346 (true, available_above)
5347 } else {
5348 (false, available_below)
5349 }
5350 }
5351 };
5352 y_flipped = y_flipped_override;
5353 height = height_override;
5354 }
5355
5356 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
5357
5358 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
5359 // for very narrow windows.
5360 let popovers =
5361 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
5362 if popovers.is_empty() {
5363 return None;
5364 }
5365
5366 let max_width = popovers
5367 .iter()
5368 .map(|(_, _, size)| size.width)
5369 .max()
5370 .unwrap_or_default();
5371
5372 let mut current_position = gpui::Point {
5373 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
5374 // overflow. Include space for the scrollbar.
5375 x: target_position
5376 .x
5377 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
5378 y: if y_flipped {
5379 bottom_y_when_flipped
5380 } else {
5381 target_position.y
5382 },
5383 };
5384
5385 let mut laid_out_popovers = popovers
5386 .into_iter()
5387 .map(|(popover_type, element, size)| {
5388 if y_flipped {
5389 current_position.y -= size.height;
5390 }
5391 let position = current_position;
5392 window.defer_draw(element, current_position, 1);
5393 if !y_flipped {
5394 current_position.y += size.height + MENU_GAP;
5395 } else {
5396 current_position.y -= MENU_GAP;
5397 }
5398 (popover_type, Bounds::new(position, size))
5399 })
5400 .collect::<Vec<_>>();
5401
5402 if y_flipped {
5403 laid_out_popovers.reverse();
5404 }
5405
5406 Some((laid_out_popovers, y_flipped))
5407 })
5408 }
5409
5410 fn layout_context_menu_aside(
5411 &self,
5412 y_flipped: bool,
5413 menu_bounds: Bounds<Pixels>,
5414 target_bounds: Bounds<Pixels>,
5415 max_target_bounds: Bounds<Pixels>,
5416 max_height: Pixels,
5417 must_place_above_or_below: bool,
5418 text_hitbox: &Hitbox,
5419 viewport_bounds: Bounds<Pixels>,
5420 window: &mut Window,
5421 cx: &mut App,
5422 ) -> Option<Bounds<Pixels>> {
5423 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
5424 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
5425 && !must_place_above_or_below
5426 {
5427 let max_width = cmp::min(
5428 available_within_viewport.right - px(1.),
5429 MENU_ASIDE_MAX_WIDTH,
5430 );
5431 let mut aside = self.render_context_menu_aside(
5432 size(max_width, max_height - POPOVER_Y_PADDING),
5433 window,
5434 cx,
5435 )?;
5436 let size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5437 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
5438 Some((aside, right_position, size))
5439 } else {
5440 let max_size = size(
5441 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
5442 // won't be needed here.
5443 cmp::min(
5444 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
5445 viewport_bounds.right(),
5446 ),
5447 cmp::min(
5448 max_height,
5449 cmp::max(
5450 available_within_viewport.top,
5451 available_within_viewport.bottom,
5452 ),
5453 ) - POPOVER_Y_PADDING,
5454 );
5455 let mut aside = self.render_context_menu_aside(max_size, window, cx)?;
5456 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5457
5458 let top_position = point(
5459 menu_bounds.origin.x,
5460 target_bounds.top() - actual_size.height,
5461 );
5462 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
5463
5464 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
5465 // Prefer to fit on the same side of the line as the menu, then on the other side of
5466 // the line.
5467 if !y_flipped && wanted.height < available.bottom {
5468 Some(bottom_position)
5469 } else if !y_flipped && wanted.height < available.top {
5470 Some(top_position)
5471 } else if y_flipped && wanted.height < available.top {
5472 Some(top_position)
5473 } else if y_flipped && wanted.height < available.bottom {
5474 Some(bottom_position)
5475 } else {
5476 None
5477 }
5478 };
5479
5480 // Prefer choosing a direction using max sizes rather than actual size for stability.
5481 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
5482 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
5483 let aside_position = fit_within(available_within_text, wanted)
5484 // Fallback: fit max size in window.
5485 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
5486 // Fallback: fit actual size in window.
5487 .or_else(|| fit_within(available_within_viewport, actual_size));
5488
5489 aside_position.map(|position| (aside, position, actual_size))
5490 };
5491
5492 // Skip drawing if it doesn't fit anywhere.
5493 if let Some((aside, position, size)) = positioned_aside {
5494 let aside_bounds = Bounds::new(position, size);
5495 window.defer_draw(aside, position, 2);
5496 return Some(aside_bounds);
5497 }
5498
5499 None
5500 }
5501
5502 fn render_context_menu(
5503 &self,
5504 line_height: Pixels,
5505 height: Pixels,
5506 window: &mut Window,
5507 cx: &mut App,
5508 ) -> Option<AnyElement> {
5509 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
5510 self.editor.update(cx, |editor, cx| {
5511 editor.render_context_menu(max_height_in_lines, window, cx)
5512 })
5513 }
5514
5515 fn render_context_menu_aside(
5516 &self,
5517 max_size: Size<Pixels>,
5518 window: &mut Window,
5519 cx: &mut App,
5520 ) -> Option<AnyElement> {
5521 if max_size.width < px(100.) || max_size.height < px(12.) {
5522 None
5523 } else {
5524 self.editor.update(cx, |editor, cx| {
5525 editor.render_context_menu_aside(max_size, window, cx)
5526 })
5527 }
5528 }
5529
5530 fn layout_mouse_context_menu(
5531 &self,
5532 editor_snapshot: &EditorSnapshot,
5533 visible_range: Range<DisplayRow>,
5534 content_origin: gpui::Point<Pixels>,
5535 window: &mut Window,
5536 cx: &mut App,
5537 ) -> Option<AnyElement> {
5538 let position = self.editor.update(cx, |editor, cx| {
5539 let visible_start_point = editor.display_to_pixel_point(
5540 DisplayPoint::new(visible_range.start, 0),
5541 editor_snapshot,
5542 window,
5543 cx,
5544 )?;
5545 let visible_end_point = editor.display_to_pixel_point(
5546 DisplayPoint::new(visible_range.end, 0),
5547 editor_snapshot,
5548 window,
5549 cx,
5550 )?;
5551
5552 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5553 let (source_display_point, position) = match mouse_context_menu.position {
5554 MenuPosition::PinnedToScreen(point) => (None, point),
5555 MenuPosition::PinnedToEditor { source, offset } => {
5556 let source_display_point = source.to_display_point(editor_snapshot);
5557 let source_point =
5558 editor.to_pixel_point(source, editor_snapshot, window, cx)?;
5559 let position = content_origin + source_point + offset;
5560 (Some(source_display_point), position)
5561 }
5562 };
5563
5564 let source_included = source_display_point.is_none_or(|source_display_point| {
5565 visible_range
5566 .to_inclusive()
5567 .contains(&source_display_point.row())
5568 });
5569 let position_included =
5570 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
5571 if !source_included && !position_included {
5572 None
5573 } else {
5574 Some(position)
5575 }
5576 })?;
5577
5578 let text_style = TextStyleRefinement {
5579 line_height: Some(DefiniteLength::Fraction(
5580 BufferLineHeight::Comfortable.value(),
5581 )),
5582 ..Default::default()
5583 };
5584 window.with_text_style(Some(text_style), |window| {
5585 let mut element = self.editor.read_with(cx, |editor, _| {
5586 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5587 let context_menu = mouse_context_menu.context_menu.clone();
5588
5589 Some(
5590 deferred(
5591 anchored()
5592 .position(position)
5593 .child(context_menu)
5594 .anchor(Corner::TopLeft)
5595 .snap_to_window_with_margin(px(8.)),
5596 )
5597 .with_priority(1)
5598 .into_any(),
5599 )
5600 })?;
5601
5602 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
5603 Some(element)
5604 })
5605 }
5606
5607 fn layout_hover_popovers(
5608 &self,
5609 snapshot: &EditorSnapshot,
5610 hitbox: &Hitbox,
5611 visible_display_row_range: Range<DisplayRow>,
5612 content_origin: gpui::Point<Pixels>,
5613 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5614 line_layouts: &[LineWithInvisibles],
5615 line_height: Pixels,
5616 em_width: Pixels,
5617 context_menu_layout: Option<ContextMenuLayout>,
5618 window: &mut Window,
5619 cx: &mut App,
5620 ) {
5621 struct MeasuredHoverPopover {
5622 element: AnyElement,
5623 size: Size<Pixels>,
5624 horizontal_offset: Pixels,
5625 }
5626
5627 let max_size = size(
5628 (120. * em_width) // Default size
5629 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5630 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5631 (16. * line_height) // Default size
5632 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5633 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5634 );
5635
5636 // Don't show hover popovers when context menu is open to avoid overlap
5637 let has_context_menu = self.editor.read(cx).mouse_context_menu.is_some();
5638 if has_context_menu {
5639 return;
5640 }
5641
5642 let hover_popovers = self.editor.update(cx, |editor, cx| {
5643 editor.hover_state.render(
5644 snapshot,
5645 visible_display_row_range.clone(),
5646 max_size,
5647 &editor.text_layout_details(window),
5648 window,
5649 cx,
5650 )
5651 });
5652 let Some((popover_position, hover_popovers)) = hover_popovers else {
5653 return;
5654 };
5655
5656 // This is safe because we check on layout whether the required row is available
5657 let hovered_row_layout = &line_layouts[popover_position
5658 .row()
5659 .minus(visible_display_row_range.start)
5660 as usize];
5661
5662 // Compute Hovered Point
5663 let x = hovered_row_layout.x_for_index(popover_position.column() as usize)
5664 - Pixels::from(scroll_pixel_position.x);
5665 let y = Pixels::from(
5666 popover_position.row().as_f64() * ScrollPixelOffset::from(line_height)
5667 - scroll_pixel_position.y,
5668 );
5669 let hovered_point = content_origin + point(x, y);
5670
5671 let mut overall_height = Pixels::ZERO;
5672 let mut measured_hover_popovers = Vec::new();
5673 for (position, mut hover_popover) in hover_popovers.into_iter().with_position() {
5674 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
5675 let horizontal_offset =
5676 (hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
5677 .min(Pixels::ZERO);
5678 match position {
5679 itertools::Position::Middle | itertools::Position::Last => {
5680 overall_height += HOVER_POPOVER_GAP
5681 }
5682 _ => {}
5683 }
5684 overall_height += size.height;
5685 measured_hover_popovers.push(MeasuredHoverPopover {
5686 element: hover_popover,
5687 size,
5688 horizontal_offset,
5689 });
5690 }
5691
5692 fn draw_occluder(
5693 width: Pixels,
5694 origin: gpui::Point<Pixels>,
5695 window: &mut Window,
5696 cx: &mut App,
5697 ) {
5698 let mut occlusion = div()
5699 .size_full()
5700 .occlude()
5701 .on_mouse_move(|_, _, cx| cx.stop_propagation())
5702 .into_any_element();
5703 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
5704 window.defer_draw(occlusion, origin, 2);
5705 }
5706
5707 fn place_popovers_above(
5708 hovered_point: gpui::Point<Pixels>,
5709 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5710 window: &mut Window,
5711 cx: &mut App,
5712 ) {
5713 let mut current_y = hovered_point.y;
5714 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5715 let size = popover.size;
5716 let popover_origin = point(
5717 hovered_point.x + popover.horizontal_offset,
5718 current_y - size.height,
5719 );
5720
5721 window.defer_draw(popover.element, popover_origin, 2);
5722 if position != itertools::Position::Last {
5723 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
5724 draw_occluder(size.width, origin, window, cx);
5725 }
5726
5727 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5728 }
5729 }
5730
5731 fn place_popovers_below(
5732 hovered_point: gpui::Point<Pixels>,
5733 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5734 line_height: Pixels,
5735 window: &mut Window,
5736 cx: &mut App,
5737 ) {
5738 let mut current_y = hovered_point.y + line_height;
5739 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5740 let size = popover.size;
5741 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5742
5743 window.defer_draw(popover.element, popover_origin, 2);
5744 if position != itertools::Position::Last {
5745 let origin = point(popover_origin.x, popover_origin.y + size.height);
5746 draw_occluder(size.width, origin, window, cx);
5747 }
5748
5749 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5750 }
5751 }
5752
5753 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5754 context_menu_layout
5755 .as_ref()
5756 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5757 };
5758
5759 let can_place_above = {
5760 let mut bounds_above = Vec::new();
5761 let mut current_y = hovered_point.y;
5762 for popover in &measured_hover_popovers {
5763 let size = popover.size;
5764 let popover_origin = point(
5765 hovered_point.x + popover.horizontal_offset,
5766 current_y - size.height,
5767 );
5768 bounds_above.push(Bounds::new(popover_origin, size));
5769 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5770 }
5771 bounds_above
5772 .iter()
5773 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5774 };
5775
5776 let can_place_below = || {
5777 let mut bounds_below = Vec::new();
5778 let mut current_y = hovered_point.y + line_height;
5779 for popover in &measured_hover_popovers {
5780 let size = popover.size;
5781 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5782 bounds_below.push(Bounds::new(popover_origin, size));
5783 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5784 }
5785 bounds_below
5786 .iter()
5787 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5788 };
5789
5790 if can_place_above {
5791 // try placing above hovered point
5792 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5793 } else if can_place_below() {
5794 // try placing below hovered point
5795 place_popovers_below(
5796 hovered_point,
5797 measured_hover_popovers,
5798 line_height,
5799 window,
5800 cx,
5801 );
5802 } else {
5803 // try to place popovers around the context menu
5804 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5805 let total_width = measured_hover_popovers
5806 .iter()
5807 .map(|p| p.size.width)
5808 .max()
5809 .unwrap_or(Pixels::ZERO);
5810 let y_for_horizontal_positioning = if menu.y_flipped {
5811 menu.bounds.bottom() - overall_height
5812 } else {
5813 menu.bounds.top()
5814 };
5815 let possible_origins = vec![
5816 // left of context menu
5817 point(
5818 menu.bounds.left() - total_width - HOVER_POPOVER_GAP,
5819 y_for_horizontal_positioning,
5820 ),
5821 // right of context menu
5822 point(
5823 menu.bounds.right() + HOVER_POPOVER_GAP,
5824 y_for_horizontal_positioning,
5825 ),
5826 // top of context menu
5827 point(
5828 menu.bounds.left(),
5829 menu.bounds.top() - overall_height - HOVER_POPOVER_GAP,
5830 ),
5831 // bottom of context menu
5832 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5833 ];
5834 possible_origins.into_iter().find(|&origin| {
5835 Bounds::new(origin, size(total_width, overall_height))
5836 .is_contained_within(hitbox)
5837 })
5838 });
5839 if let Some(origin) = origin_surrounding_menu {
5840 let mut current_y = origin.y;
5841 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5842 let size = popover.size;
5843 let popover_origin = point(origin.x, current_y);
5844
5845 window.defer_draw(popover.element, popover_origin, 2);
5846 if position != itertools::Position::Last {
5847 let origin = point(popover_origin.x, popover_origin.y + size.height);
5848 draw_occluder(size.width, origin, window, cx);
5849 }
5850
5851 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5852 }
5853 } else {
5854 // fallback to existing above/below cursor logic
5855 // this might overlap menu or overflow in rare case
5856 if can_place_above {
5857 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5858 } else {
5859 place_popovers_below(
5860 hovered_point,
5861 measured_hover_popovers,
5862 line_height,
5863 window,
5864 cx,
5865 );
5866 }
5867 }
5868 }
5869 }
5870
5871 fn layout_word_diff_highlights(
5872 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5873 row_infos: &[RowInfo],
5874 start_row: DisplayRow,
5875 snapshot: &EditorSnapshot,
5876 highlighted_ranges: &mut Vec<(Range<DisplayPoint>, Hsla)>,
5877 cx: &mut App,
5878 ) {
5879 let colors = cx.theme().colors();
5880
5881 let word_highlights = display_hunks
5882 .into_iter()
5883 .filter_map(|(hunk, _)| match hunk {
5884 DisplayDiffHunk::Unfolded {
5885 word_diffs, status, ..
5886 } => Some((word_diffs, status)),
5887 _ => None,
5888 })
5889 .filter(|(_, status)| status.is_modified())
5890 .flat_map(|(word_diffs, _)| word_diffs)
5891 .filter_map(|word_diff| {
5892 let start_point = word_diff.start.to_display_point(&snapshot.display_snapshot);
5893 let end_point = word_diff.end.to_display_point(&snapshot.display_snapshot);
5894 let start_row_offset = start_point.row().0.saturating_sub(start_row.0) as usize;
5895
5896 row_infos
5897 .get(start_row_offset)
5898 .and_then(|row_info| row_info.diff_status)
5899 .and_then(|diff_status| {
5900 let background_color = match diff_status.kind {
5901 DiffHunkStatusKind::Added => colors.version_control_word_added,
5902 DiffHunkStatusKind::Deleted => colors.version_control_word_deleted,
5903 DiffHunkStatusKind::Modified => {
5904 debug_panic!("modified diff status for row info");
5905 return None;
5906 }
5907 };
5908 Some((start_point..end_point, background_color))
5909 })
5910 });
5911
5912 highlighted_ranges.extend(word_highlights);
5913 }
5914
5915 fn layout_diff_hunk_controls(
5916 &self,
5917 row_range: Range<DisplayRow>,
5918 row_infos: &[RowInfo],
5919 text_hitbox: &Hitbox,
5920 newest_cursor_position: Option<DisplayPoint>,
5921 line_height: Pixels,
5922 right_margin: Pixels,
5923 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5924 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5925 highlighted_rows: &BTreeMap<DisplayRow, LineHighlight>,
5926 editor: Entity<Editor>,
5927 window: &mut Window,
5928 cx: &mut App,
5929 ) -> (Vec<AnyElement>, Vec<(DisplayRow, Bounds<Pixels>)>) {
5930 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
5931 let hovered_diff_hunk_row = editor.read(cx).hovered_diff_hunk_row;
5932
5933 let mut controls = vec![];
5934 let mut control_bounds = vec![];
5935
5936 let active_positions = [
5937 hovered_diff_hunk_row.map(|row| DisplayPoint::new(row, 0)),
5938 newest_cursor_position,
5939 ];
5940
5941 for (hunk, _) in display_hunks {
5942 if let DisplayDiffHunk::Unfolded {
5943 display_row_range,
5944 multi_buffer_range,
5945 status,
5946 is_created_file,
5947 ..
5948 } = &hunk
5949 {
5950 if display_row_range.start < row_range.start
5951 || display_row_range.start >= row_range.end
5952 {
5953 continue;
5954 }
5955 if highlighted_rows
5956 .get(&display_row_range.start)
5957 .and_then(|highlight| highlight.type_id)
5958 .is_some_and(|type_id| {
5959 [
5960 TypeId::of::<ConflictsOuter>(),
5961 TypeId::of::<ConflictsOursMarker>(),
5962 TypeId::of::<ConflictsOurs>(),
5963 TypeId::of::<ConflictsTheirs>(),
5964 TypeId::of::<ConflictsTheirsMarker>(),
5965 ]
5966 .contains(&type_id)
5967 })
5968 {
5969 continue;
5970 }
5971 let row_ix = (display_row_range.start - row_range.start).0 as usize;
5972 if row_infos[row_ix].diff_status.is_none() {
5973 continue;
5974 }
5975 if row_infos[row_ix]
5976 .diff_status
5977 .is_some_and(|status| status.is_added())
5978 && !status.is_added()
5979 {
5980 continue;
5981 }
5982
5983 if active_positions
5984 .iter()
5985 .any(|p| p.is_some_and(|p| display_row_range.contains(&p.row())))
5986 {
5987 let y = (display_row_range.start.as_f64()
5988 * ScrollPixelOffset::from(line_height)
5989 + ScrollPixelOffset::from(text_hitbox.bounds.top())
5990 - scroll_pixel_position.y)
5991 .into();
5992
5993 let mut element = render_diff_hunk_controls(
5994 display_row_range.start.0,
5995 status,
5996 multi_buffer_range.clone(),
5997 *is_created_file,
5998 line_height,
5999 &editor,
6000 window,
6001 cx,
6002 );
6003 let size =
6004 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
6005
6006 let x = text_hitbox.bounds.right() - right_margin - px(10.) - size.width;
6007
6008 if x < text_hitbox.bounds.left() {
6009 continue;
6010 }
6011
6012 let bounds = Bounds::new(gpui::Point::new(x, y), size);
6013 control_bounds.push((display_row_range.start, bounds));
6014
6015 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
6016 element.prepaint(window, cx)
6017 });
6018 controls.push(element);
6019 }
6020 }
6021 }
6022
6023 (controls, control_bounds)
6024 }
6025
6026 fn layout_signature_help(
6027 &self,
6028 hitbox: &Hitbox,
6029 content_origin: gpui::Point<Pixels>,
6030 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
6031 newest_selection_head: Option<DisplayPoint>,
6032 start_row: DisplayRow,
6033 line_layouts: &[LineWithInvisibles],
6034 line_height: Pixels,
6035 em_width: Pixels,
6036 context_menu_layout: Option<ContextMenuLayout>,
6037 window: &mut Window,
6038 cx: &mut App,
6039 ) {
6040 if !self.editor.focus_handle(cx).is_focused(window) {
6041 return;
6042 }
6043 let Some(newest_selection_head) = newest_selection_head else {
6044 return;
6045 };
6046
6047 let max_size = size(
6048 (120. * em_width) // Default size
6049 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
6050 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
6051 (16. * line_height) // Default size
6052 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
6053 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
6054 );
6055
6056 let maybe_element = self.editor.update(cx, |editor, cx| {
6057 if let Some(popover) = editor.signature_help_state.popover_mut() {
6058 let element = popover.render(max_size, window, cx);
6059 Some(element)
6060 } else {
6061 None
6062 }
6063 });
6064 let Some(mut element) = maybe_element else {
6065 return;
6066 };
6067
6068 let selection_row = newest_selection_head.row();
6069 let Some(cursor_row_layout) = (selection_row >= start_row)
6070 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
6071 .flatten()
6072 else {
6073 return;
6074 };
6075
6076 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
6077 - Pixels::from(scroll_pixel_position.x);
6078 let target_y = Pixels::from(
6079 selection_row.as_f64() * ScrollPixelOffset::from(line_height) - scroll_pixel_position.y,
6080 );
6081 let target_point = content_origin + point(target_x, target_y);
6082
6083 let actual_size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
6084
6085 let (popover_bounds_above, popover_bounds_below) = {
6086 let horizontal_offset = (hitbox.top_right().x
6087 - POPOVER_RIGHT_OFFSET
6088 - (target_point.x + actual_size.width))
6089 .min(Pixels::ZERO);
6090 let initial_x = target_point.x + horizontal_offset;
6091 (
6092 Bounds::new(
6093 point(initial_x, target_point.y - actual_size.height),
6094 actual_size,
6095 ),
6096 Bounds::new(
6097 point(initial_x, target_point.y + line_height + HOVER_POPOVER_GAP),
6098 actual_size,
6099 ),
6100 )
6101 };
6102
6103 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
6104 context_menu_layout
6105 .as_ref()
6106 .is_some_and(|menu| bounds.intersects(&menu.bounds))
6107 };
6108
6109 let final_origin = if popover_bounds_above.is_contained_within(hitbox)
6110 && !intersects_menu(popover_bounds_above)
6111 {
6112 // try placing above cursor
6113 popover_bounds_above.origin
6114 } else if popover_bounds_below.is_contained_within(hitbox)
6115 && !intersects_menu(popover_bounds_below)
6116 {
6117 // try placing below cursor
6118 popover_bounds_below.origin
6119 } else {
6120 // try surrounding context menu if exists
6121 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
6122 let y_for_horizontal_positioning = if menu.y_flipped {
6123 menu.bounds.bottom() - actual_size.height
6124 } else {
6125 menu.bounds.top()
6126 };
6127 let possible_origins = vec![
6128 // left of context menu
6129 point(
6130 menu.bounds.left() - actual_size.width - HOVER_POPOVER_GAP,
6131 y_for_horizontal_positioning,
6132 ),
6133 // right of context menu
6134 point(
6135 menu.bounds.right() + HOVER_POPOVER_GAP,
6136 y_for_horizontal_positioning,
6137 ),
6138 // top of context menu
6139 point(
6140 menu.bounds.left(),
6141 menu.bounds.top() - actual_size.height - HOVER_POPOVER_GAP,
6142 ),
6143 // bottom of context menu
6144 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
6145 ];
6146 possible_origins
6147 .into_iter()
6148 .find(|&origin| Bounds::new(origin, actual_size).is_contained_within(hitbox))
6149 });
6150 origin_surrounding_menu.unwrap_or_else(|| {
6151 // fallback to existing above/below cursor logic
6152 // this might overlap menu or overflow in rare case
6153 if popover_bounds_above.is_contained_within(hitbox) {
6154 popover_bounds_above.origin
6155 } else {
6156 popover_bounds_below.origin
6157 }
6158 })
6159 };
6160
6161 window.defer_draw(element, final_origin, 2);
6162 }
6163
6164 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
6165 window.paint_layer(layout.hitbox.bounds, |window| {
6166 let scroll_top = layout.position_map.snapshot.scroll_position().y;
6167 let gutter_bg = cx.theme().colors().editor_gutter_background;
6168 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
6169 window.paint_quad(fill(
6170 layout.position_map.text_hitbox.bounds,
6171 self.style.background,
6172 ));
6173
6174 if matches!(
6175 layout.mode,
6176 EditorMode::Full { .. } | EditorMode::Minimap { .. }
6177 ) {
6178 let show_active_line_background = match layout.mode {
6179 EditorMode::Full {
6180 show_active_line_background,
6181 ..
6182 } => show_active_line_background,
6183 EditorMode::Minimap { .. } => true,
6184 _ => false,
6185 };
6186 let mut active_rows = layout.active_rows.iter().peekable();
6187 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
6188 let mut end_row = start_row.0;
6189 while active_rows
6190 .peek()
6191 .is_some_and(|(active_row, has_selection)| {
6192 active_row.0 == end_row + 1
6193 && has_selection.selection == contains_non_empty_selection.selection
6194 })
6195 {
6196 active_rows.next().unwrap();
6197 end_row += 1;
6198 }
6199
6200 if show_active_line_background && !contains_non_empty_selection.selection {
6201 let highlight_h_range =
6202 match layout.position_map.snapshot.current_line_highlight {
6203 CurrentLineHighlight::Gutter => Some(Range {
6204 start: layout.hitbox.left(),
6205 end: layout.gutter_hitbox.right(),
6206 }),
6207 CurrentLineHighlight::Line => Some(Range {
6208 start: layout.position_map.text_hitbox.bounds.left(),
6209 end: layout.position_map.text_hitbox.bounds.right(),
6210 }),
6211 CurrentLineHighlight::All => Some(Range {
6212 start: layout.hitbox.left(),
6213 end: layout.hitbox.right(),
6214 }),
6215 CurrentLineHighlight::None => None,
6216 };
6217 if let Some(range) = highlight_h_range {
6218 let active_line_bg = cx.theme().colors().editor_active_line_background;
6219 let bounds = Bounds {
6220 origin: point(
6221 range.start,
6222 layout.hitbox.origin.y
6223 + Pixels::from(
6224 (start_row.as_f64() - scroll_top)
6225 * ScrollPixelOffset::from(
6226 layout.position_map.line_height,
6227 ),
6228 ),
6229 ),
6230 size: size(
6231 range.end - range.start,
6232 layout.position_map.line_height
6233 * (end_row - start_row.0 + 1) as f32,
6234 ),
6235 };
6236 window.paint_quad(fill(bounds, active_line_bg));
6237 }
6238 }
6239 }
6240
6241 let mut paint_highlight = |highlight_row_start: DisplayRow,
6242 highlight_row_end: DisplayRow,
6243 highlight: crate::LineHighlight,
6244 edges| {
6245 let mut origin_x = layout.hitbox.left();
6246 let mut width = layout.hitbox.size.width;
6247 if !highlight.include_gutter {
6248 origin_x += layout.gutter_hitbox.size.width;
6249 width -= layout.gutter_hitbox.size.width;
6250 }
6251
6252 let origin = point(
6253 origin_x,
6254 layout.hitbox.origin.y
6255 + Pixels::from(
6256 (highlight_row_start.as_f64() - scroll_top)
6257 * ScrollPixelOffset::from(layout.position_map.line_height),
6258 ),
6259 );
6260 let size = size(
6261 width,
6262 layout.position_map.line_height
6263 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
6264 );
6265 let mut quad = fill(Bounds { origin, size }, highlight.background);
6266 if let Some(border_color) = highlight.border {
6267 quad.border_color = border_color;
6268 quad.border_widths = edges
6269 }
6270 window.paint_quad(quad);
6271 };
6272
6273 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
6274 None;
6275 for (&new_row, &new_background) in &layout.highlighted_rows {
6276 match &mut current_paint {
6277 &mut Some((current_background, ref mut current_range, mut edges)) => {
6278 let new_range_started = current_background != new_background
6279 || current_range.end.next_row() != new_row;
6280 if new_range_started {
6281 if current_range.end.next_row() == new_row {
6282 edges.bottom = px(0.);
6283 };
6284 paint_highlight(
6285 current_range.start,
6286 current_range.end,
6287 current_background,
6288 edges,
6289 );
6290 let edges = Edges {
6291 top: if current_range.end.next_row() != new_row {
6292 px(1.)
6293 } else {
6294 px(0.)
6295 },
6296 bottom: px(1.),
6297 ..Default::default()
6298 };
6299 current_paint = Some((new_background, new_row..new_row, edges));
6300 continue;
6301 } else {
6302 current_range.end = current_range.end.next_row();
6303 }
6304 }
6305 None => {
6306 let edges = Edges {
6307 top: px(1.),
6308 bottom: px(1.),
6309 ..Default::default()
6310 };
6311 current_paint = Some((new_background, new_row..new_row, edges))
6312 }
6313 };
6314 }
6315 if let Some((color, range, edges)) = current_paint {
6316 paint_highlight(range.start, range.end, color, edges);
6317 }
6318
6319 for (guide_x, active) in layout.wrap_guides.iter() {
6320 let color = if *active {
6321 cx.theme().colors().editor_active_wrap_guide
6322 } else {
6323 cx.theme().colors().editor_wrap_guide
6324 };
6325 window.paint_quad(fill(
6326 Bounds {
6327 origin: point(*guide_x, layout.position_map.text_hitbox.origin.y),
6328 size: size(px(1.), layout.position_map.text_hitbox.size.height),
6329 },
6330 color,
6331 ));
6332 }
6333 }
6334 })
6335 }
6336
6337 fn paint_indent_guides(
6338 &mut self,
6339 layout: &mut EditorLayout,
6340 window: &mut Window,
6341 cx: &mut App,
6342 ) {
6343 let Some(indent_guides) = &layout.indent_guides else {
6344 return;
6345 };
6346
6347 let faded_color = |color: Hsla, alpha: f32| {
6348 let mut faded = color;
6349 faded.a = alpha;
6350 faded
6351 };
6352
6353 for indent_guide in indent_guides {
6354 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
6355 let settings = &indent_guide.settings;
6356
6357 // TODO fixed for now, expose them through themes later
6358 const INDENT_AWARE_ALPHA: f32 = 0.2;
6359 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
6360 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
6361 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
6362
6363 let line_color = match (settings.coloring, indent_guide.active) {
6364 (IndentGuideColoring::Disabled, _) => None,
6365 (IndentGuideColoring::Fixed, false) => {
6366 Some(cx.theme().colors().editor_indent_guide)
6367 }
6368 (IndentGuideColoring::Fixed, true) => {
6369 Some(cx.theme().colors().editor_indent_guide_active)
6370 }
6371 (IndentGuideColoring::IndentAware, false) => {
6372 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
6373 }
6374 (IndentGuideColoring::IndentAware, true) => {
6375 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
6376 }
6377 };
6378
6379 let background_color = match (settings.background_coloring, indent_guide.active) {
6380 (IndentGuideBackgroundColoring::Disabled, _) => None,
6381 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
6382 indent_accent_colors,
6383 INDENT_AWARE_BACKGROUND_ALPHA,
6384 )),
6385 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
6386 indent_accent_colors,
6387 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
6388 )),
6389 };
6390
6391 let requested_line_width = if indent_guide.active {
6392 settings.active_line_width
6393 } else {
6394 settings.line_width
6395 }
6396 .clamp(1, 10);
6397 let mut line_indicator_width = 0.;
6398 if let Some(color) = line_color {
6399 window.paint_quad(fill(
6400 Bounds {
6401 origin: indent_guide.origin,
6402 size: size(px(requested_line_width as f32), indent_guide.length),
6403 },
6404 color,
6405 ));
6406 line_indicator_width = requested_line_width as f32;
6407 }
6408
6409 if let Some(color) = background_color {
6410 let width = indent_guide.single_indent_width - px(line_indicator_width);
6411 window.paint_quad(fill(
6412 Bounds {
6413 origin: point(
6414 indent_guide.origin.x + px(line_indicator_width),
6415 indent_guide.origin.y,
6416 ),
6417 size: size(width, indent_guide.length),
6418 },
6419 color,
6420 ));
6421 }
6422 }
6423 }
6424
6425 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6426 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
6427
6428 let line_height = layout.position_map.line_height;
6429 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
6430
6431 for line_layout in layout.line_numbers.values() {
6432 for LineNumberSegment {
6433 shaped_line,
6434 hitbox,
6435 } in &line_layout.segments
6436 {
6437 let Some(hitbox) = hitbox else {
6438 continue;
6439 };
6440
6441 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
6442 let color = cx.theme().colors().editor_hover_line_number;
6443
6444 let line = self.shape_line_number(shaped_line.text.clone(), color, window);
6445 line.paint(
6446 hitbox.origin,
6447 line_height,
6448 TextAlign::Left,
6449 None,
6450 window,
6451 cx,
6452 )
6453 .log_err()
6454 } else {
6455 shaped_line
6456 .paint(
6457 hitbox.origin,
6458 line_height,
6459 TextAlign::Left,
6460 None,
6461 window,
6462 cx,
6463 )
6464 .log_err()
6465 }) else {
6466 continue;
6467 };
6468
6469 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
6470 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
6471 if is_singleton {
6472 window.set_cursor_style(CursorStyle::IBeam, hitbox);
6473 } else {
6474 window.set_cursor_style(CursorStyle::PointingHand, hitbox);
6475 }
6476 }
6477 }
6478 }
6479
6480 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6481 if layout.display_hunks.is_empty() {
6482 return;
6483 }
6484
6485 let line_height = layout.position_map.line_height;
6486 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6487 for (hunk, hitbox) in &layout.display_hunks {
6488 let hunk_to_paint = match hunk {
6489 DisplayDiffHunk::Folded { .. } => {
6490 let hunk_bounds = Self::diff_hunk_bounds(
6491 &layout.position_map.snapshot,
6492 line_height,
6493 layout.gutter_hitbox.bounds,
6494 hunk,
6495 );
6496 Some((
6497 hunk_bounds,
6498 cx.theme().colors().version_control_modified,
6499 Corners::all(px(0.)),
6500 DiffHunkStatus::modified_none(),
6501 ))
6502 }
6503 DisplayDiffHunk::Unfolded {
6504 status,
6505 display_row_range,
6506 ..
6507 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
6508 DiffHunkStatusKind::Added => (
6509 hunk_hitbox.bounds,
6510 cx.theme().colors().version_control_added,
6511 Corners::all(px(0.)),
6512 *status,
6513 ),
6514 DiffHunkStatusKind::Modified => (
6515 hunk_hitbox.bounds,
6516 cx.theme().colors().version_control_modified,
6517 Corners::all(px(0.)),
6518 *status,
6519 ),
6520 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
6521 hunk_hitbox.bounds,
6522 cx.theme().colors().version_control_deleted,
6523 Corners::all(px(0.)),
6524 *status,
6525 ),
6526 DiffHunkStatusKind::Deleted => (
6527 Bounds::new(
6528 point(
6529 hunk_hitbox.origin.x - hunk_hitbox.size.width,
6530 hunk_hitbox.origin.y,
6531 ),
6532 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
6533 ),
6534 cx.theme().colors().version_control_deleted,
6535 Corners::all(1. * line_height),
6536 *status,
6537 ),
6538 }),
6539 };
6540
6541 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
6542 // Flatten the background color with the editor color to prevent
6543 // elements below transparent hunks from showing through
6544 let flattened_background_color = cx
6545 .theme()
6546 .colors()
6547 .editor_background
6548 .blend(background_color);
6549
6550 if !Self::diff_hunk_hollow(status, cx) {
6551 window.paint_quad(quad(
6552 hunk_bounds,
6553 corner_radii,
6554 flattened_background_color,
6555 Edges::default(),
6556 transparent_black(),
6557 BorderStyle::default(),
6558 ));
6559 } else {
6560 let flattened_unstaged_background_color = cx
6561 .theme()
6562 .colors()
6563 .editor_background
6564 .blend(background_color.opacity(0.3));
6565
6566 window.paint_quad(quad(
6567 hunk_bounds,
6568 corner_radii,
6569 flattened_unstaged_background_color,
6570 Edges::all(px(1.0)),
6571 flattened_background_color,
6572 BorderStyle::Solid,
6573 ));
6574 }
6575 }
6576 }
6577 });
6578 }
6579
6580 fn gutter_strip_width(line_height: Pixels) -> Pixels {
6581 (0.275 * line_height).floor()
6582 }
6583
6584 fn diff_hunk_bounds(
6585 snapshot: &EditorSnapshot,
6586 line_height: Pixels,
6587 gutter_bounds: Bounds<Pixels>,
6588 hunk: &DisplayDiffHunk,
6589 ) -> Bounds<Pixels> {
6590 let scroll_position = snapshot.scroll_position();
6591 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
6592 let gutter_strip_width = Self::gutter_strip_width(line_height);
6593
6594 match hunk {
6595 DisplayDiffHunk::Folded { display_row, .. } => {
6596 let start_y = (display_row.as_f64() * ScrollPixelOffset::from(line_height)
6597 - scroll_top)
6598 .into();
6599 let end_y = start_y + line_height;
6600 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6601 let highlight_size = size(gutter_strip_width, end_y - start_y);
6602 Bounds::new(highlight_origin, highlight_size)
6603 }
6604 DisplayDiffHunk::Unfolded {
6605 display_row_range,
6606 status,
6607 ..
6608 } => {
6609 if status.is_deleted() && display_row_range.is_empty() {
6610 let row = display_row_range.start;
6611
6612 let offset = ScrollPixelOffset::from(line_height / 2.);
6613 let start_y =
6614 (row.as_f64() * ScrollPixelOffset::from(line_height) - offset - scroll_top)
6615 .into();
6616 let end_y = start_y + line_height;
6617
6618 let width = (0.35 * line_height).floor();
6619 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6620 let highlight_size = size(width, end_y - start_y);
6621 Bounds::new(highlight_origin, highlight_size)
6622 } else {
6623 let start_row = display_row_range.start;
6624 let end_row = display_row_range.end;
6625 // If we're in a multibuffer, row range span might include an
6626 // excerpt header, so if we were to draw the marker straight away,
6627 // the hunk might include the rows of that header.
6628 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
6629 // Instead, we simply check whether the range we're dealing with includes
6630 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
6631 let end_row_in_current_excerpt = snapshot
6632 .blocks_in_range(start_row..end_row)
6633 .find_map(|(start_row, block)| {
6634 if matches!(
6635 block,
6636 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
6637 ) {
6638 Some(start_row)
6639 } else {
6640 None
6641 }
6642 })
6643 .unwrap_or(end_row);
6644
6645 let start_y = (start_row.as_f64() * ScrollPixelOffset::from(line_height)
6646 - scroll_top)
6647 .into();
6648 let end_y = Pixels::from(
6649 end_row_in_current_excerpt.as_f64() * ScrollPixelOffset::from(line_height)
6650 - scroll_top,
6651 );
6652
6653 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6654 let highlight_size = size(gutter_strip_width, end_y - start_y);
6655 Bounds::new(highlight_origin, highlight_size)
6656 }
6657 }
6658 }
6659 }
6660
6661 fn paint_gutter_indicators(
6662 &self,
6663 layout: &mut EditorLayout,
6664 window: &mut Window,
6665 cx: &mut App,
6666 ) {
6667 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6668 window.with_element_namespace("crease_toggles", |window| {
6669 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
6670 crease_toggle.paint(window, cx);
6671 }
6672 });
6673
6674 window.with_element_namespace("expand_toggles", |window| {
6675 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
6676 expand_toggle.paint(window, cx);
6677 }
6678 });
6679
6680 for breakpoint in layout.breakpoints.iter_mut() {
6681 breakpoint.paint(window, cx);
6682 }
6683
6684 for test_indicator in layout.test_indicators.iter_mut() {
6685 test_indicator.paint(window, cx);
6686 }
6687
6688 if let Some(diff_review_button) = layout.diff_review_button.as_mut() {
6689 diff_review_button.paint(window, cx);
6690 }
6691 });
6692 }
6693
6694 fn paint_gutter_highlights(
6695 &self,
6696 layout: &mut EditorLayout,
6697 window: &mut Window,
6698 cx: &mut App,
6699 ) {
6700 for (_, hunk_hitbox) in &layout.display_hunks {
6701 if let Some(hunk_hitbox) = hunk_hitbox
6702 && !self
6703 .editor
6704 .read(cx)
6705 .buffer()
6706 .read(cx)
6707 .all_diff_hunks_expanded()
6708 {
6709 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
6710 }
6711 }
6712
6713 let show_git_gutter = layout
6714 .position_map
6715 .snapshot
6716 .show_git_diff_gutter
6717 .unwrap_or_else(|| {
6718 matches!(
6719 ProjectSettings::get_global(cx).git.git_gutter,
6720 GitGutterSetting::TrackedFiles
6721 )
6722 });
6723 if show_git_gutter && self.split_side.is_none() {
6724 Self::paint_gutter_diff_hunks(layout, window, cx)
6725 }
6726
6727 let highlight_width = 0.275 * layout.position_map.line_height;
6728 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
6729 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6730 for (range, color) in &layout.highlighted_gutter_ranges {
6731 let start_row = if range.start.row() < layout.visible_display_row_range.start {
6732 layout.visible_display_row_range.start - DisplayRow(1)
6733 } else {
6734 range.start.row()
6735 };
6736 let end_row = if range.end.row() > layout.visible_display_row_range.end {
6737 layout.visible_display_row_range.end + DisplayRow(1)
6738 } else {
6739 range.end.row()
6740 };
6741
6742 let start_y = layout.gutter_hitbox.top()
6743 + Pixels::from(
6744 start_row.0 as f64
6745 * ScrollPixelOffset::from(layout.position_map.line_height)
6746 - layout.position_map.scroll_pixel_position.y,
6747 );
6748 let end_y = layout.gutter_hitbox.top()
6749 + Pixels::from(
6750 (end_row.0 + 1) as f64
6751 * ScrollPixelOffset::from(layout.position_map.line_height)
6752 - layout.position_map.scroll_pixel_position.y,
6753 );
6754 let bounds = Bounds::from_corners(
6755 point(layout.gutter_hitbox.left(), start_y),
6756 point(layout.gutter_hitbox.left() + highlight_width, end_y),
6757 );
6758 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
6759 }
6760 });
6761 }
6762
6763 fn paint_blamed_display_rows(
6764 &self,
6765 layout: &mut EditorLayout,
6766 window: &mut Window,
6767 cx: &mut App,
6768 ) {
6769 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
6770 return;
6771 };
6772
6773 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6774 for mut blame_element in blamed_display_rows.into_iter() {
6775 blame_element.paint(window, cx);
6776 }
6777 })
6778 }
6779
6780 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6781 window.with_content_mask(
6782 Some(ContentMask {
6783 bounds: layout.position_map.text_hitbox.bounds,
6784 }),
6785 |window| {
6786 let editor = self.editor.read(cx);
6787 if editor.mouse_cursor_hidden {
6788 window.set_window_cursor_style(CursorStyle::None);
6789 } else if let SelectionDragState::ReadyToDrag {
6790 mouse_down_time, ..
6791 } = &editor.selection_drag_state
6792 {
6793 let drag_and_drop_delay = Duration::from_millis(
6794 EditorSettings::get_global(cx)
6795 .drag_and_drop_selection
6796 .delay
6797 .0,
6798 );
6799 if mouse_down_time.elapsed() >= drag_and_drop_delay {
6800 window.set_cursor_style(
6801 CursorStyle::DragCopy,
6802 &layout.position_map.text_hitbox,
6803 );
6804 }
6805 } else if matches!(
6806 editor.selection_drag_state,
6807 SelectionDragState::Dragging { .. }
6808 ) {
6809 window
6810 .set_cursor_style(CursorStyle::DragCopy, &layout.position_map.text_hitbox);
6811 } else if editor
6812 .hovered_link_state
6813 .as_ref()
6814 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
6815 {
6816 window.set_cursor_style(
6817 CursorStyle::PointingHand,
6818 &layout.position_map.text_hitbox,
6819 );
6820 } else {
6821 window.set_cursor_style(CursorStyle::IBeam, &layout.position_map.text_hitbox);
6822 };
6823
6824 self.paint_lines_background(layout, window, cx);
6825 let invisible_display_ranges = self.paint_highlights(layout, window, cx);
6826 self.paint_document_colors(layout, window);
6827 self.paint_lines(&invisible_display_ranges, layout, window, cx);
6828 self.paint_redactions(layout, window);
6829 self.paint_cursors(layout, window, cx);
6830 self.paint_inline_diagnostics(layout, window, cx);
6831 self.paint_inline_blame(layout, window, cx);
6832 self.paint_inline_code_actions(layout, window, cx);
6833 self.paint_diff_hunk_controls(layout, window, cx);
6834 window.with_element_namespace("crease_trailers", |window| {
6835 for trailer in layout.crease_trailers.iter_mut().flatten() {
6836 trailer.element.paint(window, cx);
6837 }
6838 });
6839 },
6840 )
6841 }
6842
6843 fn paint_highlights(
6844 &mut self,
6845 layout: &mut EditorLayout,
6846 window: &mut Window,
6847 cx: &mut App,
6848 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
6849 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6850 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
6851 let line_end_overshoot = 0.15 * layout.position_map.line_height;
6852 for (range, color) in &layout.highlighted_ranges {
6853 self.paint_highlighted_range(
6854 range.clone(),
6855 true,
6856 *color,
6857 Pixels::ZERO,
6858 line_end_overshoot,
6859 layout,
6860 window,
6861 );
6862 }
6863
6864 let corner_radius = if EditorSettings::get_global(cx).rounded_selection {
6865 0.15 * layout.position_map.line_height
6866 } else {
6867 Pixels::ZERO
6868 };
6869
6870 for (player_color, selections) in &layout.selections {
6871 for selection in selections.iter() {
6872 self.paint_highlighted_range(
6873 selection.range.clone(),
6874 true,
6875 player_color.selection,
6876 corner_radius,
6877 corner_radius * 2.,
6878 layout,
6879 window,
6880 );
6881
6882 if selection.is_local && !selection.range.is_empty() {
6883 invisible_display_ranges.push(selection.range.clone());
6884 }
6885 }
6886 }
6887 invisible_display_ranges
6888 })
6889 }
6890
6891 fn paint_lines(
6892 &mut self,
6893 invisible_display_ranges: &[Range<DisplayPoint>],
6894 layout: &mut EditorLayout,
6895 window: &mut Window,
6896 cx: &mut App,
6897 ) {
6898 let whitespace_setting = self
6899 .editor
6900 .read(cx)
6901 .buffer
6902 .read(cx)
6903 .language_settings(cx)
6904 .show_whitespaces;
6905
6906 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6907 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6908 line_with_invisibles.draw(
6909 layout,
6910 row,
6911 layout.content_origin,
6912 whitespace_setting,
6913 invisible_display_ranges,
6914 window,
6915 cx,
6916 )
6917 }
6918
6919 for line_element in &mut layout.line_elements {
6920 line_element.paint(window, cx);
6921 }
6922 }
6923
6924 fn paint_sticky_headers(
6925 &mut self,
6926 layout: &mut EditorLayout,
6927 window: &mut Window,
6928 cx: &mut App,
6929 ) {
6930 let Some(mut sticky_headers) = layout.sticky_headers.take() else {
6931 return;
6932 };
6933
6934 if sticky_headers.lines.is_empty() {
6935 layout.sticky_headers = Some(sticky_headers);
6936 return;
6937 }
6938
6939 let whitespace_setting = self
6940 .editor
6941 .read(cx)
6942 .buffer
6943 .read(cx)
6944 .language_settings(cx)
6945 .show_whitespaces;
6946 sticky_headers.paint(layout, whitespace_setting, window, cx);
6947
6948 let sticky_header_hitboxes: Vec<Hitbox> = sticky_headers
6949 .lines
6950 .iter()
6951 .map(|line| line.hitbox.clone())
6952 .collect();
6953 let hovered_hitbox = sticky_header_hitboxes
6954 .iter()
6955 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6956
6957 window.on_mouse_event(move |_: &MouseMoveEvent, phase, window, _cx| {
6958 if !phase.bubble() {
6959 return;
6960 }
6961
6962 let current_hover = sticky_header_hitboxes
6963 .iter()
6964 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6965 if hovered_hitbox != current_hover {
6966 window.refresh();
6967 }
6968 });
6969
6970 for (line_index, line) in sticky_headers.lines.iter().enumerate() {
6971 let editor = self.editor.clone();
6972 let hitbox = line.hitbox.clone();
6973 let target_anchor = line.target_anchor;
6974 window.on_mouse_event(move |event: &MouseDownEvent, phase, window, cx| {
6975 if !phase.bubble() {
6976 return;
6977 }
6978
6979 if event.button == MouseButton::Left && hitbox.is_hovered(window) {
6980 editor.update(cx, |editor, cx| {
6981 editor.change_selections(
6982 SelectionEffects::scroll(Autoscroll::top_relative(line_index)),
6983 window,
6984 cx,
6985 |selections| selections.select_ranges([target_anchor..target_anchor]),
6986 );
6987 cx.stop_propagation();
6988 });
6989 }
6990 });
6991 }
6992
6993 let text_bounds = layout.position_map.text_hitbox.bounds;
6994 let border_top = text_bounds.top()
6995 + sticky_headers.lines.last().unwrap().offset
6996 + layout.position_map.line_height;
6997 let separator_height = px(1.);
6998 let border_bounds = Bounds::from_corners(
6999 point(layout.gutter_hitbox.bounds.left(), border_top),
7000 point(text_bounds.right(), border_top + separator_height),
7001 );
7002 window.paint_quad(fill(border_bounds, cx.theme().colors().border_variant));
7003
7004 layout.sticky_headers = Some(sticky_headers);
7005 }
7006
7007 fn paint_lines_background(
7008 &mut self,
7009 layout: &mut EditorLayout,
7010 window: &mut Window,
7011 cx: &mut App,
7012 ) {
7013 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
7014 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
7015 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
7016 }
7017 }
7018
7019 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
7020 if layout.redacted_ranges.is_empty() {
7021 return;
7022 }
7023
7024 let line_end_overshoot = layout.line_end_overshoot();
7025
7026 // A softer than perfect black
7027 let redaction_color = gpui::rgb(0x0e1111);
7028
7029 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7030 for range in layout.redacted_ranges.iter() {
7031 self.paint_highlighted_range(
7032 range.clone(),
7033 true,
7034 redaction_color.into(),
7035 Pixels::ZERO,
7036 line_end_overshoot,
7037 layout,
7038 window,
7039 );
7040 }
7041 });
7042 }
7043
7044 fn paint_document_colors(&self, layout: &mut EditorLayout, window: &mut Window) {
7045 let Some((colors_render_mode, image_colors)) = &layout.document_colors else {
7046 return;
7047 };
7048 if image_colors.is_empty()
7049 || colors_render_mode == &DocumentColorsRenderMode::None
7050 || colors_render_mode == &DocumentColorsRenderMode::Inlay
7051 {
7052 return;
7053 }
7054
7055 let line_end_overshoot = layout.line_end_overshoot();
7056
7057 for (range, color) in image_colors {
7058 match colors_render_mode {
7059 DocumentColorsRenderMode::Inlay | DocumentColorsRenderMode::None => return,
7060 DocumentColorsRenderMode::Background => {
7061 self.paint_highlighted_range(
7062 range.clone(),
7063 true,
7064 *color,
7065 Pixels::ZERO,
7066 line_end_overshoot,
7067 layout,
7068 window,
7069 );
7070 }
7071 DocumentColorsRenderMode::Border => {
7072 self.paint_highlighted_range(
7073 range.clone(),
7074 false,
7075 *color,
7076 Pixels::ZERO,
7077 line_end_overshoot,
7078 layout,
7079 window,
7080 );
7081 }
7082 }
7083 }
7084 }
7085
7086 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7087 for cursor in &mut layout.visible_cursors {
7088 cursor.paint(layout.content_origin, window, cx);
7089 }
7090 }
7091
7092 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7093 let Some(scrollbars_layout) = layout.scrollbars_layout.take() else {
7094 return;
7095 };
7096 let any_scrollbar_dragged = self.editor.read(cx).scroll_manager.any_scrollbar_dragged();
7097
7098 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
7099 let hitbox = &scrollbar_layout.hitbox;
7100 if scrollbars_layout.visible {
7101 let scrollbar_edges = match axis {
7102 ScrollbarAxis::Horizontal => Edges {
7103 top: Pixels::ZERO,
7104 right: Pixels::ZERO,
7105 bottom: Pixels::ZERO,
7106 left: Pixels::ZERO,
7107 },
7108 ScrollbarAxis::Vertical => Edges {
7109 top: Pixels::ZERO,
7110 right: Pixels::ZERO,
7111 bottom: Pixels::ZERO,
7112 left: ScrollbarLayout::BORDER_WIDTH,
7113 },
7114 };
7115
7116 window.paint_layer(hitbox.bounds, |window| {
7117 window.paint_quad(quad(
7118 hitbox.bounds,
7119 Corners::default(),
7120 cx.theme().colors().scrollbar_track_background,
7121 scrollbar_edges,
7122 cx.theme().colors().scrollbar_track_border,
7123 BorderStyle::Solid,
7124 ));
7125
7126 if axis == ScrollbarAxis::Vertical {
7127 let fast_markers =
7128 self.collect_fast_scrollbar_markers(layout, scrollbar_layout, cx);
7129 // Refresh slow scrollbar markers in the background. Below, we
7130 // paint whatever markers have already been computed.
7131 self.refresh_slow_scrollbar_markers(layout, scrollbar_layout, window, cx);
7132
7133 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
7134 for marker in markers.iter().chain(&fast_markers) {
7135 let mut marker = marker.clone();
7136 marker.bounds.origin += hitbox.origin;
7137 window.paint_quad(marker);
7138 }
7139 }
7140
7141 if let Some(thumb_bounds) = scrollbar_layout.thumb_bounds {
7142 let scrollbar_thumb_color = match scrollbar_layout.thumb_state {
7143 ScrollbarThumbState::Dragging => {
7144 cx.theme().colors().scrollbar_thumb_active_background
7145 }
7146 ScrollbarThumbState::Hovered => {
7147 cx.theme().colors().scrollbar_thumb_hover_background
7148 }
7149 ScrollbarThumbState::Idle => {
7150 cx.theme().colors().scrollbar_thumb_background
7151 }
7152 };
7153 window.paint_quad(quad(
7154 thumb_bounds,
7155 Corners::default(),
7156 scrollbar_thumb_color,
7157 scrollbar_edges,
7158 cx.theme().colors().scrollbar_thumb_border,
7159 BorderStyle::Solid,
7160 ));
7161
7162 if any_scrollbar_dragged {
7163 window.set_window_cursor_style(CursorStyle::Arrow);
7164 } else {
7165 window.set_cursor_style(CursorStyle::Arrow, hitbox);
7166 }
7167 }
7168 })
7169 }
7170 }
7171
7172 window.on_mouse_event({
7173 let editor = self.editor.clone();
7174 let scrollbars_layout = scrollbars_layout.clone();
7175
7176 let mut mouse_position = window.mouse_position();
7177 move |event: &MouseMoveEvent, phase, window, cx| {
7178 if phase == DispatchPhase::Capture {
7179 return;
7180 }
7181
7182 editor.update(cx, |editor, cx| {
7183 if let Some((scrollbar_layout, axis)) = event
7184 .pressed_button
7185 .filter(|button| *button == MouseButton::Left)
7186 .and(editor.scroll_manager.dragging_scrollbar_axis())
7187 .and_then(|axis| {
7188 scrollbars_layout
7189 .iter_scrollbars()
7190 .find(|(_, a)| *a == axis)
7191 })
7192 {
7193 let ScrollbarLayout {
7194 hitbox,
7195 text_unit_size,
7196 ..
7197 } = scrollbar_layout;
7198
7199 let old_position = mouse_position.along(axis);
7200 let new_position = event.position.along(axis);
7201 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
7202 .contains(&old_position)
7203 {
7204 let position = editor.scroll_position(cx).apply_along(axis, |p| {
7205 (p + ScrollOffset::from(
7206 (new_position - old_position) / *text_unit_size,
7207 ))
7208 .max(0.)
7209 });
7210 editor.set_scroll_position(position, window, cx);
7211 }
7212
7213 editor.scroll_manager.show_scrollbars(window, cx);
7214 cx.stop_propagation();
7215 } else if let Some((layout, axis)) = scrollbars_layout
7216 .get_hovered_axis(window)
7217 .filter(|_| !event.dragging())
7218 {
7219 if layout.thumb_hovered(&event.position) {
7220 editor
7221 .scroll_manager
7222 .set_hovered_scroll_thumb_axis(axis, cx);
7223 } else {
7224 editor.scroll_manager.reset_scrollbar_state(cx);
7225 }
7226
7227 editor.scroll_manager.show_scrollbars(window, cx);
7228 } else {
7229 editor.scroll_manager.reset_scrollbar_state(cx);
7230 }
7231
7232 mouse_position = event.position;
7233 })
7234 }
7235 });
7236
7237 if any_scrollbar_dragged {
7238 window.on_mouse_event({
7239 let editor = self.editor.clone();
7240 move |_: &MouseUpEvent, phase, window, cx| {
7241 if phase == DispatchPhase::Capture {
7242 return;
7243 }
7244
7245 editor.update(cx, |editor, cx| {
7246 if let Some((_, axis)) = scrollbars_layout.get_hovered_axis(window) {
7247 editor
7248 .scroll_manager
7249 .set_hovered_scroll_thumb_axis(axis, cx);
7250 } else {
7251 editor.scroll_manager.reset_scrollbar_state(cx);
7252 }
7253 cx.stop_propagation();
7254 });
7255 }
7256 });
7257 } else {
7258 window.on_mouse_event({
7259 let editor = self.editor.clone();
7260
7261 move |event: &MouseDownEvent, phase, window, cx| {
7262 if phase == DispatchPhase::Capture {
7263 return;
7264 }
7265 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
7266 else {
7267 return;
7268 };
7269
7270 let ScrollbarLayout {
7271 hitbox,
7272 visible_range,
7273 text_unit_size,
7274 thumb_bounds,
7275 ..
7276 } = scrollbar_layout;
7277
7278 let Some(thumb_bounds) = thumb_bounds else {
7279 return;
7280 };
7281
7282 editor.update(cx, |editor, cx| {
7283 editor
7284 .scroll_manager
7285 .set_dragged_scroll_thumb_axis(axis, cx);
7286
7287 let event_position = event.position.along(axis);
7288
7289 if event_position < thumb_bounds.origin.along(axis)
7290 || thumb_bounds.bottom_right().along(axis) < event_position
7291 {
7292 let center_position = ((event_position - hitbox.origin.along(axis))
7293 / *text_unit_size)
7294 .round() as u32;
7295 let start_position = center_position.saturating_sub(
7296 (visible_range.end - visible_range.start) as u32 / 2,
7297 );
7298
7299 let position = editor
7300 .scroll_position(cx)
7301 .apply_along(axis, |_| start_position as ScrollOffset);
7302
7303 editor.set_scroll_position(position, window, cx);
7304 } else {
7305 editor.scroll_manager.show_scrollbars(window, cx);
7306 }
7307
7308 cx.stop_propagation();
7309 });
7310 }
7311 });
7312 }
7313 }
7314
7315 fn collect_fast_scrollbar_markers(
7316 &self,
7317 layout: &EditorLayout,
7318 scrollbar_layout: &ScrollbarLayout,
7319 cx: &mut App,
7320 ) -> Vec<PaintQuad> {
7321 const LIMIT: usize = 100;
7322 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
7323 return vec![];
7324 }
7325 let cursor_ranges = layout
7326 .cursors
7327 .iter()
7328 .map(|(point, color)| ColoredRange {
7329 start: point.row(),
7330 end: point.row(),
7331 color: *color,
7332 })
7333 .collect_vec();
7334 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
7335 }
7336
7337 fn refresh_slow_scrollbar_markers(
7338 &self,
7339 layout: &EditorLayout,
7340 scrollbar_layout: &ScrollbarLayout,
7341 window: &mut Window,
7342 cx: &mut App,
7343 ) {
7344 self.editor.update(cx, |editor, cx| {
7345 if editor.buffer_kind(cx) != ItemBufferKind::Singleton
7346 || !editor
7347 .scrollbar_marker_state
7348 .should_refresh(scrollbar_layout.hitbox.size)
7349 {
7350 return;
7351 }
7352
7353 let scrollbar_layout = scrollbar_layout.clone();
7354 let background_highlights = editor.background_highlights.clone();
7355 let snapshot = layout.position_map.snapshot.clone();
7356 let theme = cx.theme().clone();
7357 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
7358
7359 editor.scrollbar_marker_state.dirty = false;
7360 editor.scrollbar_marker_state.pending_refresh =
7361 Some(cx.spawn_in(window, async move |editor, cx| {
7362 let scrollbar_size = scrollbar_layout.hitbox.size;
7363 let scrollbar_markers = cx
7364 .background_spawn(async move {
7365 let max_point = snapshot.display_snapshot.buffer_snapshot().max_point();
7366 let mut marker_quads = Vec::new();
7367 if scrollbar_settings.git_diff {
7368 let marker_row_ranges =
7369 snapshot.buffer_snapshot().diff_hunks().map(|hunk| {
7370 let start_display_row =
7371 MultiBufferPoint::new(hunk.row_range.start.0, 0)
7372 .to_display_point(&snapshot.display_snapshot)
7373 .row();
7374 let mut end_display_row =
7375 MultiBufferPoint::new(hunk.row_range.end.0, 0)
7376 .to_display_point(&snapshot.display_snapshot)
7377 .row();
7378 if end_display_row != start_display_row {
7379 end_display_row.0 -= 1;
7380 }
7381 let color = match &hunk.status().kind {
7382 DiffHunkStatusKind::Added => {
7383 theme.colors().version_control_added
7384 }
7385 DiffHunkStatusKind::Modified => {
7386 theme.colors().version_control_modified
7387 }
7388 DiffHunkStatusKind::Deleted => {
7389 theme.colors().version_control_deleted
7390 }
7391 };
7392 ColoredRange {
7393 start: start_display_row,
7394 end: end_display_row,
7395 color,
7396 }
7397 });
7398
7399 marker_quads.extend(
7400 scrollbar_layout
7401 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
7402 );
7403 }
7404
7405 for (background_highlight_id, (_, background_ranges)) in
7406 background_highlights.iter()
7407 {
7408 let is_search_highlights = *background_highlight_id
7409 == HighlightKey::Type(TypeId::of::<BufferSearchHighlights>());
7410 let is_text_highlights = *background_highlight_id
7411 == HighlightKey::Type(TypeId::of::<SelectedTextHighlight>());
7412 let is_symbol_occurrences = *background_highlight_id
7413 == HighlightKey::Type(TypeId::of::<DocumentHighlightRead>())
7414 || *background_highlight_id
7415 == HighlightKey::Type(
7416 TypeId::of::<DocumentHighlightWrite>(),
7417 );
7418 if (is_search_highlights && scrollbar_settings.search_results)
7419 || (is_text_highlights && scrollbar_settings.selected_text)
7420 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
7421 {
7422 let mut color = theme.status().info;
7423 if is_symbol_occurrences {
7424 color.fade_out(0.5);
7425 }
7426 let marker_row_ranges = background_ranges.iter().map(|range| {
7427 let display_start = range
7428 .start
7429 .to_display_point(&snapshot.display_snapshot);
7430 let display_end =
7431 range.end.to_display_point(&snapshot.display_snapshot);
7432 ColoredRange {
7433 start: display_start.row(),
7434 end: display_end.row(),
7435 color,
7436 }
7437 });
7438 marker_quads.extend(
7439 scrollbar_layout
7440 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
7441 );
7442 }
7443 }
7444
7445 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
7446 let diagnostics = snapshot
7447 .buffer_snapshot()
7448 .diagnostics_in_range::<Point>(Point::zero()..max_point)
7449 // Don't show diagnostics the user doesn't care about
7450 .filter(|diagnostic| {
7451 match (
7452 scrollbar_settings.diagnostics,
7453 diagnostic.diagnostic.severity,
7454 ) {
7455 (ScrollbarDiagnostics::All, _) => true,
7456 (
7457 ScrollbarDiagnostics::Error,
7458 lsp::DiagnosticSeverity::ERROR,
7459 ) => true,
7460 (
7461 ScrollbarDiagnostics::Warning,
7462 lsp::DiagnosticSeverity::ERROR
7463 | lsp::DiagnosticSeverity::WARNING,
7464 ) => true,
7465 (
7466 ScrollbarDiagnostics::Information,
7467 lsp::DiagnosticSeverity::ERROR
7468 | lsp::DiagnosticSeverity::WARNING
7469 | lsp::DiagnosticSeverity::INFORMATION,
7470 ) => true,
7471 (_, _) => false,
7472 }
7473 })
7474 // We want to sort by severity, in order to paint the most severe diagnostics last.
7475 .sorted_by_key(|diagnostic| {
7476 std::cmp::Reverse(diagnostic.diagnostic.severity)
7477 });
7478
7479 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
7480 let start_display = diagnostic
7481 .range
7482 .start
7483 .to_display_point(&snapshot.display_snapshot);
7484 let end_display = diagnostic
7485 .range
7486 .end
7487 .to_display_point(&snapshot.display_snapshot);
7488 let color = match diagnostic.diagnostic.severity {
7489 lsp::DiagnosticSeverity::ERROR => theme.status().error,
7490 lsp::DiagnosticSeverity::WARNING => theme.status().warning,
7491 lsp::DiagnosticSeverity::INFORMATION => theme.status().info,
7492 _ => theme.status().hint,
7493 };
7494 ColoredRange {
7495 start: start_display.row(),
7496 end: end_display.row(),
7497 color,
7498 }
7499 });
7500 marker_quads.extend(
7501 scrollbar_layout
7502 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
7503 );
7504 }
7505
7506 Arc::from(marker_quads)
7507 })
7508 .await;
7509
7510 editor.update(cx, |editor, cx| {
7511 editor.scrollbar_marker_state.markers = scrollbar_markers;
7512 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
7513 editor.scrollbar_marker_state.pending_refresh = None;
7514 cx.notify();
7515 })?;
7516
7517 Ok(())
7518 }));
7519 });
7520 }
7521
7522 fn paint_highlighted_range(
7523 &self,
7524 range: Range<DisplayPoint>,
7525 fill: bool,
7526 color: Hsla,
7527 corner_radius: Pixels,
7528 line_end_overshoot: Pixels,
7529 layout: &EditorLayout,
7530 window: &mut Window,
7531 ) {
7532 let start_row = layout.visible_display_row_range.start;
7533 let end_row = layout.visible_display_row_range.end;
7534 if range.start != range.end {
7535 let row_range = if range.end.column() == 0 {
7536 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
7537 } else {
7538 cmp::max(range.start.row(), start_row)
7539 ..cmp::min(range.end.row().next_row(), end_row)
7540 };
7541
7542 let highlighted_range = HighlightedRange {
7543 color,
7544 line_height: layout.position_map.line_height,
7545 corner_radius,
7546 start_y: layout.content_origin.y
7547 + Pixels::from(
7548 (row_range.start.as_f64() - layout.position_map.scroll_position.y)
7549 * ScrollOffset::from(layout.position_map.line_height),
7550 ),
7551 lines: row_range
7552 .iter_rows()
7553 .map(|row| {
7554 let line_layout =
7555 &layout.position_map.line_layouts[row.minus(start_row) as usize];
7556 let alignment_offset =
7557 line_layout.alignment_offset(layout.text_align, layout.content_width);
7558 HighlightedRangeLine {
7559 start_x: if row == range.start.row() {
7560 layout.content_origin.x
7561 + Pixels::from(
7562 ScrollPixelOffset::from(
7563 line_layout.x_for_index(range.start.column() as usize)
7564 + alignment_offset,
7565 ) - layout.position_map.scroll_pixel_position.x,
7566 )
7567 } else {
7568 layout.content_origin.x + alignment_offset
7569 - Pixels::from(layout.position_map.scroll_pixel_position.x)
7570 },
7571 end_x: if row == range.end.row() {
7572 layout.content_origin.x
7573 + Pixels::from(
7574 ScrollPixelOffset::from(
7575 line_layout.x_for_index(range.end.column() as usize)
7576 + alignment_offset,
7577 ) - layout.position_map.scroll_pixel_position.x,
7578 )
7579 } else {
7580 Pixels::from(
7581 ScrollPixelOffset::from(
7582 layout.content_origin.x
7583 + line_layout.width
7584 + alignment_offset
7585 + line_end_overshoot,
7586 ) - layout.position_map.scroll_pixel_position.x,
7587 )
7588 },
7589 }
7590 })
7591 .collect(),
7592 };
7593
7594 highlighted_range.paint(fill, layout.position_map.text_hitbox.bounds, window);
7595 }
7596 }
7597
7598 fn paint_inline_diagnostics(
7599 &mut self,
7600 layout: &mut EditorLayout,
7601 window: &mut Window,
7602 cx: &mut App,
7603 ) {
7604 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
7605 inline_diagnostic.1.paint(window, cx);
7606 }
7607 }
7608
7609 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7610 if let Some(mut blame_layout) = layout.inline_blame_layout.take() {
7611 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7612 blame_layout.element.paint(window, cx);
7613 })
7614 }
7615 }
7616
7617 fn paint_inline_code_actions(
7618 &mut self,
7619 layout: &mut EditorLayout,
7620 window: &mut Window,
7621 cx: &mut App,
7622 ) {
7623 if let Some(mut inline_code_actions) = layout.inline_code_actions.take() {
7624 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7625 inline_code_actions.paint(window, cx);
7626 })
7627 }
7628 }
7629
7630 fn paint_diff_hunk_controls(
7631 &mut self,
7632 layout: &mut EditorLayout,
7633 window: &mut Window,
7634 cx: &mut App,
7635 ) {
7636 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
7637 diff_hunk_control.paint(window, cx);
7638 }
7639 }
7640
7641 fn paint_minimap(&self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7642 if let Some(mut layout) = layout.minimap.take() {
7643 let minimap_hitbox = layout.thumb_layout.hitbox.clone();
7644 let dragging_minimap = self.editor.read(cx).scroll_manager.is_dragging_minimap();
7645
7646 window.paint_layer(layout.thumb_layout.hitbox.bounds, |window| {
7647 window.with_element_namespace("minimap", |window| {
7648 layout.minimap.paint(window, cx);
7649 if let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds {
7650 let minimap_thumb_color = match layout.thumb_layout.thumb_state {
7651 ScrollbarThumbState::Idle => {
7652 cx.theme().colors().minimap_thumb_background
7653 }
7654 ScrollbarThumbState::Hovered => {
7655 cx.theme().colors().minimap_thumb_hover_background
7656 }
7657 ScrollbarThumbState::Dragging => {
7658 cx.theme().colors().minimap_thumb_active_background
7659 }
7660 };
7661 let minimap_thumb_border = match layout.thumb_border_style {
7662 MinimapThumbBorder::Full => Edges::all(ScrollbarLayout::BORDER_WIDTH),
7663 MinimapThumbBorder::LeftOnly => Edges {
7664 left: ScrollbarLayout::BORDER_WIDTH,
7665 ..Default::default()
7666 },
7667 MinimapThumbBorder::LeftOpen => Edges {
7668 right: ScrollbarLayout::BORDER_WIDTH,
7669 top: ScrollbarLayout::BORDER_WIDTH,
7670 bottom: ScrollbarLayout::BORDER_WIDTH,
7671 ..Default::default()
7672 },
7673 MinimapThumbBorder::RightOpen => Edges {
7674 left: ScrollbarLayout::BORDER_WIDTH,
7675 top: ScrollbarLayout::BORDER_WIDTH,
7676 bottom: ScrollbarLayout::BORDER_WIDTH,
7677 ..Default::default()
7678 },
7679 MinimapThumbBorder::None => Default::default(),
7680 };
7681
7682 window.paint_layer(minimap_hitbox.bounds, |window| {
7683 window.paint_quad(quad(
7684 thumb_bounds,
7685 Corners::default(),
7686 minimap_thumb_color,
7687 minimap_thumb_border,
7688 cx.theme().colors().minimap_thumb_border,
7689 BorderStyle::Solid,
7690 ));
7691 });
7692 }
7693 });
7694 });
7695
7696 if dragging_minimap {
7697 window.set_window_cursor_style(CursorStyle::Arrow);
7698 } else {
7699 window.set_cursor_style(CursorStyle::Arrow, &minimap_hitbox);
7700 }
7701
7702 let minimap_axis = ScrollbarAxis::Vertical;
7703 let pixels_per_line = Pixels::from(
7704 ScrollPixelOffset::from(minimap_hitbox.size.height) / layout.max_scroll_top,
7705 )
7706 .min(layout.minimap_line_height);
7707
7708 let mut mouse_position = window.mouse_position();
7709
7710 window.on_mouse_event({
7711 let editor = self.editor.clone();
7712
7713 let minimap_hitbox = minimap_hitbox.clone();
7714
7715 move |event: &MouseMoveEvent, phase, window, cx| {
7716 if phase == DispatchPhase::Capture {
7717 return;
7718 }
7719
7720 editor.update(cx, |editor, cx| {
7721 if event.pressed_button == Some(MouseButton::Left)
7722 && editor.scroll_manager.is_dragging_minimap()
7723 {
7724 let old_position = mouse_position.along(minimap_axis);
7725 let new_position = event.position.along(minimap_axis);
7726 if (minimap_hitbox.origin.along(minimap_axis)
7727 ..minimap_hitbox.bottom_right().along(minimap_axis))
7728 .contains(&old_position)
7729 {
7730 let position =
7731 editor.scroll_position(cx).apply_along(minimap_axis, |p| {
7732 (p + ScrollPixelOffset::from(
7733 (new_position - old_position) / pixels_per_line,
7734 ))
7735 .max(0.)
7736 });
7737
7738 editor.set_scroll_position(position, window, cx);
7739 }
7740 cx.stop_propagation();
7741 } else if minimap_hitbox.is_hovered(window) {
7742 editor.scroll_manager.set_is_hovering_minimap_thumb(
7743 !event.dragging()
7744 && layout
7745 .thumb_layout
7746 .thumb_bounds
7747 .is_some_and(|bounds| bounds.contains(&event.position)),
7748 cx,
7749 );
7750
7751 // Stop hover events from propagating to the
7752 // underlying editor if the minimap hitbox is hovered
7753 if !event.dragging() {
7754 cx.stop_propagation();
7755 }
7756 } else {
7757 editor.scroll_manager.hide_minimap_thumb(cx);
7758 }
7759 mouse_position = event.position;
7760 });
7761 }
7762 });
7763
7764 if dragging_minimap {
7765 window.on_mouse_event({
7766 let editor = self.editor.clone();
7767 move |event: &MouseUpEvent, phase, window, cx| {
7768 if phase == DispatchPhase::Capture {
7769 return;
7770 }
7771
7772 editor.update(cx, |editor, cx| {
7773 if minimap_hitbox.is_hovered(window) {
7774 editor.scroll_manager.set_is_hovering_minimap_thumb(
7775 layout
7776 .thumb_layout
7777 .thumb_bounds
7778 .is_some_and(|bounds| bounds.contains(&event.position)),
7779 cx,
7780 );
7781 } else {
7782 editor.scroll_manager.hide_minimap_thumb(cx);
7783 }
7784 cx.stop_propagation();
7785 });
7786 }
7787 });
7788 } else {
7789 window.on_mouse_event({
7790 let editor = self.editor.clone();
7791
7792 move |event: &MouseDownEvent, phase, window, cx| {
7793 if phase == DispatchPhase::Capture || !minimap_hitbox.is_hovered(window) {
7794 return;
7795 }
7796
7797 let event_position = event.position;
7798
7799 let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds else {
7800 return;
7801 };
7802
7803 editor.update(cx, |editor, cx| {
7804 if !thumb_bounds.contains(&event_position) {
7805 let click_position =
7806 event_position.relative_to(&minimap_hitbox.origin).y;
7807
7808 let top_position = (click_position
7809 - thumb_bounds.size.along(minimap_axis) / 2.0)
7810 .max(Pixels::ZERO);
7811
7812 let scroll_offset = (layout.minimap_scroll_top
7813 + ScrollPixelOffset::from(
7814 top_position / layout.minimap_line_height,
7815 ))
7816 .min(layout.max_scroll_top);
7817
7818 let scroll_position = editor
7819 .scroll_position(cx)
7820 .apply_along(minimap_axis, |_| scroll_offset);
7821 editor.set_scroll_position(scroll_position, window, cx);
7822 }
7823
7824 editor.scroll_manager.set_is_dragging_minimap(cx);
7825 cx.stop_propagation();
7826 });
7827 }
7828 });
7829 }
7830 }
7831 }
7832
7833 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7834 for mut block in layout.blocks.drain(..) {
7835 if block.overlaps_gutter {
7836 block.element.paint(window, cx);
7837 } else {
7838 let mut bounds = layout.hitbox.bounds;
7839 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
7840 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7841 block.element.paint(window, cx);
7842 })
7843 }
7844 }
7845 }
7846
7847 fn paint_edit_prediction_popover(
7848 &mut self,
7849 layout: &mut EditorLayout,
7850 window: &mut Window,
7851 cx: &mut App,
7852 ) {
7853 if let Some(edit_prediction_popover) = layout.edit_prediction_popover.as_mut() {
7854 edit_prediction_popover.paint(window, cx);
7855 }
7856 }
7857
7858 fn paint_mouse_context_menu(
7859 &mut self,
7860 layout: &mut EditorLayout,
7861 window: &mut Window,
7862 cx: &mut App,
7863 ) {
7864 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
7865 mouse_context_menu.paint(window, cx);
7866 }
7867 }
7868
7869 fn paint_scroll_wheel_listener(
7870 &mut self,
7871 layout: &EditorLayout,
7872 window: &mut Window,
7873 cx: &mut App,
7874 ) {
7875 window.on_mouse_event({
7876 let position_map = layout.position_map.clone();
7877 let editor = self.editor.clone();
7878 let hitbox = layout.hitbox.clone();
7879 let mut delta = ScrollDelta::default();
7880
7881 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
7882 // accidentally turn off their scrolling.
7883 let base_scroll_sensitivity =
7884 EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
7885
7886 // Use a minimum fast_scroll_sensitivity for same reason above
7887 let fast_scroll_sensitivity = EditorSettings::get_global(cx)
7888 .fast_scroll_sensitivity
7889 .max(0.01);
7890
7891 move |event: &ScrollWheelEvent, phase, window, cx| {
7892 let scroll_sensitivity = {
7893 if event.modifiers.alt {
7894 fast_scroll_sensitivity
7895 } else {
7896 base_scroll_sensitivity
7897 }
7898 };
7899
7900 if phase == DispatchPhase::Bubble && hitbox.should_handle_scroll(window) {
7901 delta = delta.coalesce(event.delta);
7902 editor.update(cx, |editor, cx| {
7903 let position_map: &PositionMap = &position_map;
7904
7905 let line_height = position_map.line_height;
7906 let max_glyph_advance = position_map.em_advance;
7907 let (delta, axis) = match delta {
7908 gpui::ScrollDelta::Pixels(mut pixels) => {
7909 //Trackpad
7910 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
7911 (pixels, axis)
7912 }
7913
7914 gpui::ScrollDelta::Lines(lines) => {
7915 //Not trackpad
7916 let pixels =
7917 point(lines.x * max_glyph_advance, lines.y * line_height);
7918 (pixels, None)
7919 }
7920 };
7921
7922 let current_scroll_position = position_map.snapshot.scroll_position();
7923 let x = (current_scroll_position.x
7924 * ScrollPixelOffset::from(max_glyph_advance)
7925 - ScrollPixelOffset::from(delta.x * scroll_sensitivity))
7926 / ScrollPixelOffset::from(max_glyph_advance);
7927 let y = (current_scroll_position.y * ScrollPixelOffset::from(line_height)
7928 - ScrollPixelOffset::from(delta.y * scroll_sensitivity))
7929 / ScrollPixelOffset::from(line_height);
7930 let mut scroll_position =
7931 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
7932 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
7933 if forbid_vertical_scroll {
7934 scroll_position.y = current_scroll_position.y;
7935 }
7936
7937 if scroll_position != current_scroll_position {
7938 editor.scroll(scroll_position, axis, window, cx);
7939 cx.stop_propagation();
7940 } else if y < 0. {
7941 // Due to clamping, we may fail to detect cases of overscroll to the top;
7942 // We want the scroll manager to get an update in such cases and detect the change of direction
7943 // on the next frame.
7944 cx.notify();
7945 }
7946 });
7947 }
7948 }
7949 });
7950 }
7951
7952 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
7953 if layout.mode.is_minimap() {
7954 return;
7955 }
7956
7957 self.paint_scroll_wheel_listener(layout, window, cx);
7958
7959 window.on_mouse_event({
7960 let position_map = layout.position_map.clone();
7961 let editor = self.editor.clone();
7962 let line_numbers = layout.line_numbers.clone();
7963
7964 move |event: &MouseDownEvent, phase, window, cx| {
7965 if phase == DispatchPhase::Bubble {
7966 match event.button {
7967 MouseButton::Left => editor.update(cx, |editor, cx| {
7968 let pending_mouse_down = editor
7969 .pending_mouse_down
7970 .get_or_insert_with(Default::default)
7971 .clone();
7972
7973 *pending_mouse_down.borrow_mut() = Some(event.clone());
7974
7975 Self::mouse_left_down(
7976 editor,
7977 event,
7978 &position_map,
7979 line_numbers.as_ref(),
7980 window,
7981 cx,
7982 );
7983 }),
7984 MouseButton::Right => editor.update(cx, |editor, cx| {
7985 Self::mouse_right_down(editor, event, &position_map, window, cx);
7986 }),
7987 MouseButton::Middle => editor.update(cx, |editor, cx| {
7988 Self::mouse_middle_down(editor, event, &position_map, window, cx);
7989 }),
7990 _ => {}
7991 };
7992 }
7993 }
7994 });
7995
7996 window.on_mouse_event({
7997 let editor = self.editor.clone();
7998 let position_map = layout.position_map.clone();
7999
8000 move |event: &MouseUpEvent, phase, window, cx| {
8001 if phase == DispatchPhase::Bubble {
8002 editor.update(cx, |editor, cx| {
8003 Self::mouse_up(editor, event, &position_map, window, cx)
8004 });
8005 }
8006 }
8007 });
8008
8009 window.on_mouse_event({
8010 let editor = self.editor.clone();
8011 let position_map = layout.position_map.clone();
8012 let mut captured_mouse_down = None;
8013
8014 move |event: &MouseUpEvent, phase, window, cx| match phase {
8015 // Clear the pending mouse down during the capture phase,
8016 // so that it happens even if another event handler stops
8017 // propagation.
8018 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
8019 let pending_mouse_down = editor
8020 .pending_mouse_down
8021 .get_or_insert_with(Default::default)
8022 .clone();
8023
8024 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
8025 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
8026 captured_mouse_down = pending_mouse_down.take();
8027 window.refresh();
8028 }
8029 }),
8030 // Fire click handlers during the bubble phase.
8031 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
8032 if let Some(mouse_down) = captured_mouse_down.take() {
8033 let event = ClickEvent::Mouse(MouseClickEvent {
8034 down: mouse_down,
8035 up: event.clone(),
8036 });
8037 Self::click(editor, &event, &position_map, window, cx);
8038 }
8039 }),
8040 }
8041 });
8042
8043 window.on_mouse_event({
8044 let position_map = layout.position_map.clone();
8045 let editor = self.editor.clone();
8046
8047 move |event: &MousePressureEvent, phase, window, cx| {
8048 if phase == DispatchPhase::Bubble {
8049 editor.update(cx, |editor, cx| {
8050 Self::pressure_click(editor, &event, &position_map, window, cx);
8051 })
8052 }
8053 }
8054 });
8055
8056 window.on_mouse_event({
8057 let position_map = layout.position_map.clone();
8058 let editor = self.editor.clone();
8059 let split_side = self.split_side;
8060
8061 move |event: &MouseMoveEvent, phase, window, cx| {
8062 if phase == DispatchPhase::Bubble {
8063 editor.update(cx, |editor, cx| {
8064 if editor.hover_state.focused(window, cx) {
8065 return;
8066 }
8067 if event.pressed_button == Some(MouseButton::Left)
8068 || event.pressed_button == Some(MouseButton::Middle)
8069 {
8070 Self::mouse_dragged(editor, event, &position_map, window, cx)
8071 }
8072
8073 Self::mouse_moved(editor, event, &position_map, split_side, window, cx)
8074 });
8075 }
8076 }
8077 });
8078 }
8079
8080 fn shape_line_number(
8081 &self,
8082 text: SharedString,
8083 color: Hsla,
8084 window: &mut Window,
8085 ) -> ShapedLine {
8086 let run = TextRun {
8087 len: text.len(),
8088 font: self.style.text.font(),
8089 color,
8090 ..Default::default()
8091 };
8092 window.text_system().shape_line(
8093 text,
8094 self.style.text.font_size.to_pixels(window.rem_size()),
8095 &[run],
8096 None,
8097 )
8098 }
8099
8100 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
8101 let unstaged = status.has_secondary_hunk();
8102 let unstaged_hollow = matches!(
8103 ProjectSettings::get_global(cx).git.hunk_style,
8104 GitHunkStyleSetting::UnstagedHollow
8105 );
8106
8107 unstaged == unstaged_hollow
8108 }
8109
8110 #[cfg(debug_assertions)]
8111 fn layout_debug_ranges(
8112 selections: &mut Vec<(PlayerColor, Vec<SelectionLayout>)>,
8113 anchor_range: Range<Anchor>,
8114 display_snapshot: &DisplaySnapshot,
8115 cx: &App,
8116 ) {
8117 let theme = cx.theme();
8118 text::debug::GlobalDebugRanges::with_locked(|debug_ranges| {
8119 if debug_ranges.ranges.is_empty() {
8120 return;
8121 }
8122 let buffer_snapshot = &display_snapshot.buffer_snapshot();
8123 for (buffer, buffer_range, excerpt_id) in
8124 buffer_snapshot.range_to_buffer_ranges(anchor_range.start..=anchor_range.end)
8125 {
8126 let buffer_range =
8127 buffer.anchor_after(buffer_range.start)..buffer.anchor_before(buffer_range.end);
8128 selections.extend(debug_ranges.ranges.iter().flat_map(|debug_range| {
8129 let player_color = theme
8130 .players()
8131 .color_for_participant(debug_range.occurrence_index as u32 + 1);
8132 debug_range.ranges.iter().filter_map(move |range| {
8133 if range.start.buffer_id != Some(buffer.remote_id()) {
8134 return None;
8135 }
8136 let clipped_start = range.start.max(&buffer_range.start, buffer);
8137 let clipped_end = range.end.min(&buffer_range.end, buffer);
8138 let range = buffer_snapshot
8139 .anchor_range_in_excerpt(excerpt_id, *clipped_start..*clipped_end)?;
8140 let start = range.start.to_display_point(display_snapshot);
8141 let end = range.end.to_display_point(display_snapshot);
8142 let selection_layout = SelectionLayout {
8143 head: start,
8144 range: start..end,
8145 cursor_shape: CursorShape::Bar,
8146 is_newest: false,
8147 is_local: false,
8148 active_rows: start.row()..end.row(),
8149 user_name: Some(SharedString::new(debug_range.value.clone())),
8150 };
8151 Some((player_color, vec![selection_layout]))
8152 })
8153 }));
8154 }
8155 });
8156 }
8157}
8158
8159pub fn render_breadcrumb_text(
8160 mut segments: Vec<BreadcrumbText>,
8161 prefix: Option<gpui::AnyElement>,
8162 active_item: &dyn ItemHandle,
8163 multibuffer_header: bool,
8164 window: &mut Window,
8165 cx: &App,
8166) -> impl IntoElement {
8167 const MAX_SEGMENTS: usize = 12;
8168
8169 let element = h_flex().flex_grow().text_ui(cx);
8170
8171 let prefix_end_ix = cmp::min(segments.len(), MAX_SEGMENTS / 2);
8172 let suffix_start_ix = cmp::max(
8173 prefix_end_ix,
8174 segments.len().saturating_sub(MAX_SEGMENTS / 2),
8175 );
8176
8177 if suffix_start_ix > prefix_end_ix {
8178 segments.splice(
8179 prefix_end_ix..suffix_start_ix,
8180 Some(BreadcrumbText {
8181 text: "β―".into(),
8182 highlights: None,
8183 font: None,
8184 }),
8185 );
8186 }
8187
8188 let highlighted_segments = segments.into_iter().enumerate().map(|(index, segment)| {
8189 let mut text_style = window.text_style();
8190 if let Some(ref font) = segment.font {
8191 text_style.font_family = font.family.clone();
8192 text_style.font_features = font.features.clone();
8193 text_style.font_style = font.style;
8194 text_style.font_weight = font.weight;
8195 }
8196 text_style.color = Color::Muted.color(cx);
8197
8198 if index == 0
8199 && !workspace::TabBarSettings::get_global(cx).show
8200 && active_item.is_dirty(cx)
8201 && let Some(styled_element) = apply_dirty_filename_style(&segment, &text_style, cx)
8202 {
8203 return styled_element;
8204 }
8205
8206 StyledText::new(segment.text.replace('\n', "β"))
8207 .with_default_highlights(&text_style, segment.highlights.unwrap_or_default())
8208 .into_any()
8209 });
8210
8211 let breadcrumbs = Itertools::intersperse_with(highlighted_segments, || {
8212 Label::new("βΊ").color(Color::Placeholder).into_any_element()
8213 });
8214
8215 let breadcrumbs_stack = h_flex()
8216 .gap_1()
8217 .when(multibuffer_header, |this| {
8218 this.pl_2()
8219 .border_l_1()
8220 .border_color(cx.theme().colors().border.opacity(0.6))
8221 })
8222 .children(breadcrumbs);
8223
8224 let breadcrumbs = if let Some(prefix) = prefix {
8225 h_flex().gap_1p5().child(prefix).child(breadcrumbs_stack)
8226 } else {
8227 breadcrumbs_stack
8228 };
8229
8230 let editor = active_item
8231 .downcast::<Editor>()
8232 .map(|editor| editor.downgrade());
8233
8234 let has_project_path = active_item.project_path(cx).is_some();
8235
8236 match editor {
8237 Some(editor) => element
8238 .id("breadcrumb_container")
8239 .when(!multibuffer_header, |this| this.overflow_x_scroll())
8240 .child(
8241 ButtonLike::new("toggle outline view")
8242 .child(breadcrumbs)
8243 .when(multibuffer_header, |this| {
8244 this.style(ButtonStyle::Transparent)
8245 })
8246 .when(!multibuffer_header, |this| {
8247 let focus_handle = editor.upgrade().unwrap().focus_handle(&cx);
8248
8249 this.tooltip(Tooltip::element(move |_window, cx| {
8250 v_flex()
8251 .gap_1()
8252 .child(
8253 h_flex()
8254 .gap_1()
8255 .justify_between()
8256 .child(Label::new("Show Symbol Outline"))
8257 .child(ui::KeyBinding::for_action_in(
8258 &zed_actions::outline::ToggleOutline,
8259 &focus_handle,
8260 cx,
8261 )),
8262 )
8263 .when(has_project_path, |this| {
8264 this.child(
8265 h_flex()
8266 .gap_1()
8267 .justify_between()
8268 .pt_1()
8269 .border_t_1()
8270 .border_color(cx.theme().colors().border_variant)
8271 .child(Label::new("Right-Click to Copy Path")),
8272 )
8273 })
8274 .into_any_element()
8275 }))
8276 .on_click({
8277 let editor = editor.clone();
8278 move |_, window, cx| {
8279 if let Some((editor, callback)) = editor
8280 .upgrade()
8281 .zip(zed_actions::outline::TOGGLE_OUTLINE.get())
8282 {
8283 callback(editor.to_any_view(), window, cx);
8284 }
8285 }
8286 })
8287 .when(has_project_path, |this| {
8288 this.on_right_click({
8289 let editor = editor.clone();
8290 move |_, _, cx| {
8291 if let Some(abs_path) = editor.upgrade().and_then(|editor| {
8292 editor.update(cx, |editor, cx| {
8293 editor.target_file_abs_path(cx)
8294 })
8295 }) {
8296 if let Some(path_str) = abs_path.to_str() {
8297 cx.write_to_clipboard(ClipboardItem::new_string(
8298 path_str.to_string(),
8299 ));
8300 }
8301 }
8302 }
8303 })
8304 })
8305 }),
8306 )
8307 .into_any_element(),
8308 None => element
8309 .h(rems_from_px(22.)) // Match the height and padding of the `ButtonLike` in the other arm.
8310 .pl_1()
8311 .child(breadcrumbs)
8312 .into_any_element(),
8313 }
8314}
8315
8316fn apply_dirty_filename_style(
8317 segment: &BreadcrumbText,
8318 text_style: &gpui::TextStyle,
8319 cx: &App,
8320) -> Option<gpui::AnyElement> {
8321 let text = segment.text.replace('\n', "β");
8322
8323 let filename_position = std::path::Path::new(&segment.text)
8324 .file_name()
8325 .and_then(|f| {
8326 let filename_str = f.to_string_lossy();
8327 segment.text.rfind(filename_str.as_ref())
8328 })?;
8329
8330 let bold_weight = FontWeight::BOLD;
8331 let default_color = Color::Default.color(cx);
8332
8333 if filename_position == 0 {
8334 let mut filename_style = text_style.clone();
8335 filename_style.font_weight = bold_weight;
8336 filename_style.color = default_color;
8337
8338 return Some(
8339 StyledText::new(text)
8340 .with_default_highlights(&filename_style, [])
8341 .into_any(),
8342 );
8343 }
8344
8345 let highlight_style = gpui::HighlightStyle {
8346 font_weight: Some(bold_weight),
8347 color: Some(default_color),
8348 ..Default::default()
8349 };
8350
8351 let highlight = vec![(filename_position..text.len(), highlight_style)];
8352 Some(
8353 StyledText::new(text)
8354 .with_default_highlights(text_style, highlight)
8355 .into_any(),
8356 )
8357}
8358
8359fn file_status_label_color(file_status: Option<FileStatus>) -> Color {
8360 file_status.map_or(Color::Default, |status| {
8361 if status.is_conflicted() {
8362 Color::Conflict
8363 } else if status.is_modified() {
8364 Color::Modified
8365 } else if status.is_deleted() {
8366 Color::Disabled
8367 } else if status.is_created() {
8368 Color::Created
8369 } else {
8370 Color::Default
8371 }
8372 })
8373}
8374
8375pub(crate) fn header_jump_data(
8376 editor_snapshot: &EditorSnapshot,
8377 block_row_start: DisplayRow,
8378 height: u32,
8379 first_excerpt: &ExcerptInfo,
8380 latest_selection_anchors: &HashMap<BufferId, Anchor>,
8381) -> JumpData {
8382 let jump_target = if let Some(anchor) = latest_selection_anchors.get(&first_excerpt.buffer_id)
8383 && let Some(range) = editor_snapshot.context_range_for_excerpt(anchor.excerpt_id)
8384 && let Some(buffer) = editor_snapshot
8385 .buffer_snapshot()
8386 .buffer_for_excerpt(anchor.excerpt_id)
8387 {
8388 JumpTargetInExcerptInput {
8389 id: anchor.excerpt_id,
8390 buffer,
8391 excerpt_start_anchor: range.start,
8392 jump_anchor: anchor.text_anchor,
8393 }
8394 } else {
8395 JumpTargetInExcerptInput {
8396 id: first_excerpt.id,
8397 buffer: &first_excerpt.buffer,
8398 excerpt_start_anchor: first_excerpt.range.context.start,
8399 jump_anchor: first_excerpt.range.primary.start,
8400 }
8401 };
8402 header_jump_data_inner(editor_snapshot, block_row_start, height, &jump_target)
8403}
8404
8405struct JumpTargetInExcerptInput<'a> {
8406 id: ExcerptId,
8407 buffer: &'a language::BufferSnapshot,
8408 excerpt_start_anchor: text::Anchor,
8409 jump_anchor: text::Anchor,
8410}
8411
8412fn header_jump_data_inner(
8413 snapshot: &EditorSnapshot,
8414 block_row_start: DisplayRow,
8415 height: u32,
8416 for_excerpt: &JumpTargetInExcerptInput,
8417) -> JumpData {
8418 let buffer = &for_excerpt.buffer;
8419 let jump_position = language::ToPoint::to_point(&for_excerpt.jump_anchor, buffer);
8420 let excerpt_start = for_excerpt.excerpt_start_anchor;
8421 let rows_from_excerpt_start = if for_excerpt.jump_anchor == excerpt_start {
8422 0
8423 } else {
8424 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
8425 jump_position.row.saturating_sub(excerpt_start_point.row)
8426 };
8427
8428 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
8429 .saturating_sub(
8430 snapshot
8431 .scroll_anchor
8432 .scroll_position(&snapshot.display_snapshot)
8433 .y as u32,
8434 );
8435
8436 JumpData::MultiBufferPoint {
8437 excerpt_id: for_excerpt.id,
8438 anchor: for_excerpt.jump_anchor,
8439 position: jump_position,
8440 line_offset_from_top,
8441 }
8442}
8443
8444pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
8445
8446impl AcceptEditPredictionBinding {
8447 pub fn keystroke(&self) -> Option<&KeybindingKeystroke> {
8448 if let Some(binding) = self.0.as_ref() {
8449 match &binding.keystrokes() {
8450 [keystroke, ..] => Some(keystroke),
8451 _ => None,
8452 }
8453 } else {
8454 None
8455 }
8456 }
8457}
8458
8459fn prepaint_gutter_button(
8460 mut button: AnyElement,
8461 row: DisplayRow,
8462 line_height: Pixels,
8463 gutter_dimensions: &GutterDimensions,
8464 scroll_position: gpui::Point<ScrollOffset>,
8465 gutter_hitbox: &Hitbox,
8466 window: &mut Window,
8467 cx: &mut App,
8468) -> AnyElement {
8469 let available_space = size(
8470 AvailableSpace::MinContent,
8471 AvailableSpace::Definite(line_height),
8472 );
8473 let indicator_size = button.layout_as_root(available_space, window, cx);
8474 let git_gutter_width = EditorElement::gutter_strip_width(line_height)
8475 + gutter_dimensions
8476 .git_blame_entries_width
8477 .unwrap_or_default();
8478
8479 let x = git_gutter_width + px(2.);
8480
8481 let mut y =
8482 Pixels::from((row.as_f64() - scroll_position.y) * ScrollPixelOffset::from(line_height));
8483 y += (line_height - indicator_size.height) / 2.;
8484
8485 button.prepaint_as_root(
8486 gutter_hitbox.origin + point(x, y),
8487 available_space,
8488 window,
8489 cx,
8490 );
8491 button
8492}
8493
8494fn render_inline_blame_entry(
8495 blame_entry: BlameEntry,
8496 style: &EditorStyle,
8497 cx: &mut App,
8498) -> Option<AnyElement> {
8499 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
8500 renderer.render_inline_blame_entry(&style.text, blame_entry, cx)
8501}
8502
8503fn render_blame_entry_popover(
8504 blame_entry: BlameEntry,
8505 scroll_handle: ScrollHandle,
8506 commit_message: Option<ParsedCommitMessage>,
8507 markdown: Entity<Markdown>,
8508 workspace: WeakEntity<Workspace>,
8509 blame: &Entity<GitBlame>,
8510 buffer: BufferId,
8511 window: &mut Window,
8512 cx: &mut App,
8513) -> Option<AnyElement> {
8514 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
8515 let blame = blame.read(cx);
8516 let repository = blame.repository(cx, buffer)?;
8517 renderer.render_blame_entry_popover(
8518 blame_entry,
8519 scroll_handle,
8520 commit_message,
8521 markdown,
8522 repository,
8523 workspace,
8524 window,
8525 cx,
8526 )
8527}
8528
8529fn render_blame_entry(
8530 ix: usize,
8531 blame: &Entity<GitBlame>,
8532 blame_entry: BlameEntry,
8533 style: &EditorStyle,
8534 last_used_color: &mut Option<(Hsla, Oid)>,
8535 editor: Entity<Editor>,
8536 workspace: Entity<Workspace>,
8537 buffer: BufferId,
8538 renderer: &dyn BlameRenderer,
8539 window: &mut Window,
8540 cx: &mut App,
8541) -> Option<AnyElement> {
8542 let index: u32 = blame_entry.sha.into();
8543 let mut sha_color = cx.theme().players().color_for_participant(index).cursor;
8544
8545 // If the last color we used is the same as the one we get for this line, but
8546 // the commit SHAs are different, then we try again to get a different color.
8547 if let Some((color, sha)) = *last_used_color
8548 && sha != blame_entry.sha
8549 && color == sha_color
8550 {
8551 sha_color = cx.theme().players().color_for_participant(index + 1).cursor;
8552 }
8553 last_used_color.replace((sha_color, blame_entry.sha));
8554
8555 let blame = blame.read(cx);
8556 let details = blame.details_for_entry(buffer, &blame_entry);
8557 let repository = blame.repository(cx, buffer)?;
8558 renderer.render_blame_entry(
8559 &style.text,
8560 blame_entry,
8561 details,
8562 repository,
8563 workspace.downgrade(),
8564 editor,
8565 ix,
8566 sha_color,
8567 window,
8568 cx,
8569 )
8570}
8571
8572#[derive(Debug)]
8573pub(crate) struct LineWithInvisibles {
8574 fragments: SmallVec<[LineFragment; 1]>,
8575 invisibles: Vec<Invisible>,
8576 len: usize,
8577 pub(crate) width: Pixels,
8578 font_size: Pixels,
8579}
8580
8581enum LineFragment {
8582 Text(ShapedLine),
8583 Element {
8584 id: ChunkRendererId,
8585 element: Option<AnyElement>,
8586 size: Size<Pixels>,
8587 len: usize,
8588 },
8589}
8590
8591impl fmt::Debug for LineFragment {
8592 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
8593 match self {
8594 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
8595 LineFragment::Element { size, len, .. } => f
8596 .debug_struct("Element")
8597 .field("size", size)
8598 .field("len", len)
8599 .finish(),
8600 }
8601 }
8602}
8603
8604impl LineWithInvisibles {
8605 fn from_chunks<'a>(
8606 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
8607 editor_style: &EditorStyle,
8608 max_line_len: usize,
8609 max_line_count: usize,
8610 editor_mode: &EditorMode,
8611 text_width: Pixels,
8612 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8613 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
8614 window: &mut Window,
8615 cx: &mut App,
8616 ) -> Vec<Self> {
8617 let text_style = &editor_style.text;
8618 let mut layouts = Vec::with_capacity(max_line_count);
8619 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
8620 let mut line = String::new();
8621 let mut invisibles = Vec::new();
8622 let mut width = Pixels::ZERO;
8623 let mut len = 0;
8624 let mut styles = Vec::new();
8625 let mut non_whitespace_added = false;
8626 let mut row = 0;
8627 let mut line_exceeded_max_len = false;
8628 let font_size = text_style.font_size.to_pixels(window.rem_size());
8629 let min_contrast = EditorSettings::get_global(cx).minimum_contrast_for_highlights;
8630
8631 let ellipsis = SharedString::from("β―");
8632
8633 for highlighted_chunk in chunks.chain([HighlightedChunk {
8634 text: "\n",
8635 style: None,
8636 is_tab: false,
8637 is_inlay: false,
8638 replacement: None,
8639 }]) {
8640 if let Some(replacement) = highlighted_chunk.replacement {
8641 if !line.is_empty() {
8642 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8643 let text_runs: &[TextRun] = if segments.is_empty() {
8644 &styles
8645 } else {
8646 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8647 };
8648 let shaped_line = window.text_system().shape_line(
8649 line.clone().into(),
8650 font_size,
8651 text_runs,
8652 None,
8653 );
8654 width += shaped_line.width;
8655 len += shaped_line.len;
8656 fragments.push(LineFragment::Text(shaped_line));
8657 line.clear();
8658 styles.clear();
8659 }
8660
8661 match replacement {
8662 ChunkReplacement::Renderer(renderer) => {
8663 let available_width = if renderer.constrain_width {
8664 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
8665 ellipsis.clone()
8666 } else {
8667 SharedString::from(Arc::from(highlighted_chunk.text))
8668 };
8669 let shaped_line = window.text_system().shape_line(
8670 chunk,
8671 font_size,
8672 &[text_style.to_run(highlighted_chunk.text.len())],
8673 None,
8674 );
8675 AvailableSpace::Definite(shaped_line.width)
8676 } else {
8677 AvailableSpace::MinContent
8678 };
8679
8680 let mut element = (renderer.render)(&mut ChunkRendererContext {
8681 context: cx,
8682 window,
8683 max_width: text_width,
8684 });
8685 let line_height = text_style.line_height_in_pixels(window.rem_size());
8686 let size = element.layout_as_root(
8687 size(available_width, AvailableSpace::Definite(line_height)),
8688 window,
8689 cx,
8690 );
8691
8692 width += size.width;
8693 len += highlighted_chunk.text.len();
8694 fragments.push(LineFragment::Element {
8695 id: renderer.id,
8696 element: Some(element),
8697 size,
8698 len: highlighted_chunk.text.len(),
8699 });
8700 }
8701 ChunkReplacement::Str(x) => {
8702 let text_style = if let Some(style) = highlighted_chunk.style {
8703 Cow::Owned(text_style.clone().highlight(style))
8704 } else {
8705 Cow::Borrowed(text_style)
8706 };
8707
8708 let run = TextRun {
8709 len: x.len(),
8710 font: text_style.font(),
8711 color: text_style.color,
8712 background_color: text_style.background_color,
8713 underline: text_style.underline,
8714 strikethrough: text_style.strikethrough,
8715 };
8716 let line_layout = window
8717 .text_system()
8718 .shape_line(x, font_size, &[run], None)
8719 .with_len(highlighted_chunk.text.len());
8720
8721 width += line_layout.width;
8722 len += highlighted_chunk.text.len();
8723 fragments.push(LineFragment::Text(line_layout))
8724 }
8725 }
8726 } else {
8727 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
8728 if ix > 0 {
8729 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8730 let text_runs = if segments.is_empty() {
8731 &styles
8732 } else {
8733 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8734 };
8735 let shaped_line = window.text_system().shape_line(
8736 line.clone().into(),
8737 font_size,
8738 text_runs,
8739 None,
8740 );
8741 width += shaped_line.width;
8742 len += shaped_line.len;
8743 fragments.push(LineFragment::Text(shaped_line));
8744 layouts.push(Self {
8745 width: mem::take(&mut width),
8746 len: mem::take(&mut len),
8747 fragments: mem::take(&mut fragments),
8748 invisibles: std::mem::take(&mut invisibles),
8749 font_size,
8750 });
8751
8752 line.clear();
8753 styles.clear();
8754 row += 1;
8755 line_exceeded_max_len = false;
8756 non_whitespace_added = false;
8757 if row == max_line_count {
8758 return layouts;
8759 }
8760 }
8761
8762 if !line_chunk.is_empty() && !line_exceeded_max_len {
8763 let text_style = if let Some(style) = highlighted_chunk.style {
8764 Cow::Owned(text_style.clone().highlight(style))
8765 } else {
8766 Cow::Borrowed(text_style)
8767 };
8768
8769 if line.len() + line_chunk.len() > max_line_len {
8770 let mut chunk_len = max_line_len - line.len();
8771 while !line_chunk.is_char_boundary(chunk_len) {
8772 chunk_len -= 1;
8773 }
8774 line_chunk = &line_chunk[..chunk_len];
8775 line_exceeded_max_len = true;
8776 }
8777
8778 styles.push(TextRun {
8779 len: line_chunk.len(),
8780 font: text_style.font(),
8781 color: text_style.color,
8782 background_color: text_style.background_color,
8783 underline: text_style.underline,
8784 strikethrough: text_style.strikethrough,
8785 });
8786
8787 if editor_mode.is_full() && !highlighted_chunk.is_inlay {
8788 // Line wrap pads its contents with fake whitespaces,
8789 // avoid printing them
8790 let is_soft_wrapped = is_row_soft_wrapped(row);
8791 if highlighted_chunk.is_tab {
8792 if non_whitespace_added || !is_soft_wrapped {
8793 invisibles.push(Invisible::Tab {
8794 line_start_offset: line.len(),
8795 line_end_offset: line.len() + line_chunk.len(),
8796 });
8797 }
8798 } else {
8799 invisibles.extend(line_chunk.char_indices().filter_map(
8800 |(index, c)| {
8801 let is_whitespace = c.is_whitespace();
8802 non_whitespace_added |= !is_whitespace;
8803 if is_whitespace
8804 && (non_whitespace_added || !is_soft_wrapped)
8805 {
8806 Some(Invisible::Whitespace {
8807 line_offset: line.len() + index,
8808 })
8809 } else {
8810 None
8811 }
8812 },
8813 ))
8814 }
8815 }
8816
8817 line.push_str(line_chunk);
8818 }
8819 }
8820 }
8821 }
8822
8823 layouts
8824 }
8825
8826 /// Takes text runs and non-overlapping left-to-right background ranges with color.
8827 /// Returns new text runs with adjusted contrast as per background ranges.
8828 fn split_runs_by_bg_segments(
8829 text_runs: &[TextRun],
8830 bg_segments: &[(Range<DisplayPoint>, Hsla)],
8831 min_contrast: f32,
8832 start_col_offset: usize,
8833 ) -> Vec<TextRun> {
8834 let mut output_runs: Vec<TextRun> = Vec::with_capacity(text_runs.len());
8835 let mut line_col = start_col_offset;
8836 let mut segment_ix = 0usize;
8837
8838 for text_run in text_runs.iter() {
8839 let run_start_col = line_col;
8840 let run_end_col = run_start_col + text_run.len;
8841 while segment_ix < bg_segments.len()
8842 && (bg_segments[segment_ix].0.end.column() as usize) <= run_start_col
8843 {
8844 segment_ix += 1;
8845 }
8846 let mut cursor_col = run_start_col;
8847 let mut local_segment_ix = segment_ix;
8848 while local_segment_ix < bg_segments.len() {
8849 let (range, segment_color) = &bg_segments[local_segment_ix];
8850 let segment_start_col = range.start.column() as usize;
8851 let segment_end_col = range.end.column() as usize;
8852 if segment_start_col >= run_end_col {
8853 break;
8854 }
8855 if segment_start_col > cursor_col {
8856 let span_len = segment_start_col - cursor_col;
8857 output_runs.push(TextRun {
8858 len: span_len,
8859 font: text_run.font.clone(),
8860 color: text_run.color,
8861 background_color: text_run.background_color,
8862 underline: text_run.underline,
8863 strikethrough: text_run.strikethrough,
8864 });
8865 cursor_col = segment_start_col;
8866 }
8867 let segment_slice_end_col = segment_end_col.min(run_end_col);
8868 if segment_slice_end_col > cursor_col {
8869 let new_text_color =
8870 ensure_minimum_contrast(text_run.color, *segment_color, min_contrast);
8871 output_runs.push(TextRun {
8872 len: segment_slice_end_col - cursor_col,
8873 font: text_run.font.clone(),
8874 color: new_text_color,
8875 background_color: text_run.background_color,
8876 underline: text_run.underline,
8877 strikethrough: text_run.strikethrough,
8878 });
8879 cursor_col = segment_slice_end_col;
8880 }
8881 if segment_end_col >= run_end_col {
8882 break;
8883 }
8884 local_segment_ix += 1;
8885 }
8886 if cursor_col < run_end_col {
8887 output_runs.push(TextRun {
8888 len: run_end_col - cursor_col,
8889 font: text_run.font.clone(),
8890 color: text_run.color,
8891 background_color: text_run.background_color,
8892 underline: text_run.underline,
8893 strikethrough: text_run.strikethrough,
8894 });
8895 }
8896 line_col = run_end_col;
8897 segment_ix = local_segment_ix;
8898 }
8899 output_runs
8900 }
8901
8902 fn prepaint(
8903 &mut self,
8904 line_height: Pixels,
8905 scroll_position: gpui::Point<ScrollOffset>,
8906 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
8907 row: DisplayRow,
8908 content_origin: gpui::Point<Pixels>,
8909 line_elements: &mut SmallVec<[AnyElement; 1]>,
8910 window: &mut Window,
8911 cx: &mut App,
8912 ) {
8913 let line_y = f32::from(line_height) * Pixels::from(row.as_f64() - scroll_position.y);
8914 self.prepaint_with_custom_offset(
8915 line_height,
8916 scroll_pixel_position,
8917 content_origin,
8918 line_y,
8919 line_elements,
8920 window,
8921 cx,
8922 );
8923 }
8924
8925 fn prepaint_with_custom_offset(
8926 &mut self,
8927 line_height: Pixels,
8928 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
8929 content_origin: gpui::Point<Pixels>,
8930 line_y: Pixels,
8931 line_elements: &mut SmallVec<[AnyElement; 1]>,
8932 window: &mut Window,
8933 cx: &mut App,
8934 ) {
8935 let mut fragment_origin =
8936 content_origin + gpui::point(Pixels::from(-scroll_pixel_position.x), line_y);
8937 for fragment in &mut self.fragments {
8938 match fragment {
8939 LineFragment::Text(line) => {
8940 fragment_origin.x += line.width;
8941 }
8942 LineFragment::Element { element, size, .. } => {
8943 let mut element = element
8944 .take()
8945 .expect("you can't prepaint LineWithInvisibles twice");
8946
8947 // Center the element vertically within the line.
8948 let mut element_origin = fragment_origin;
8949 element_origin.y += (line_height - size.height) / 2.;
8950 element.prepaint_at(element_origin, window, cx);
8951 line_elements.push(element);
8952
8953 fragment_origin.x += size.width;
8954 }
8955 }
8956 }
8957 }
8958
8959 fn draw(
8960 &self,
8961 layout: &EditorLayout,
8962 row: DisplayRow,
8963 content_origin: gpui::Point<Pixels>,
8964 whitespace_setting: ShowWhitespaceSetting,
8965 selection_ranges: &[Range<DisplayPoint>],
8966 window: &mut Window,
8967 cx: &mut App,
8968 ) {
8969 self.draw_with_custom_offset(
8970 layout,
8971 row,
8972 content_origin,
8973 layout.position_map.line_height
8974 * (row.as_f64() - layout.position_map.scroll_position.y) as f32,
8975 whitespace_setting,
8976 selection_ranges,
8977 window,
8978 cx,
8979 );
8980 }
8981
8982 fn draw_with_custom_offset(
8983 &self,
8984 layout: &EditorLayout,
8985 row: DisplayRow,
8986 content_origin: gpui::Point<Pixels>,
8987 line_y: Pixels,
8988 whitespace_setting: ShowWhitespaceSetting,
8989 selection_ranges: &[Range<DisplayPoint>],
8990 window: &mut Window,
8991 cx: &mut App,
8992 ) {
8993 let line_height = layout.position_map.line_height;
8994 let mut fragment_origin = content_origin
8995 + gpui::point(
8996 Pixels::from(-layout.position_map.scroll_pixel_position.x),
8997 line_y,
8998 );
8999
9000 for fragment in &self.fragments {
9001 match fragment {
9002 LineFragment::Text(line) => {
9003 line.paint(
9004 fragment_origin,
9005 line_height,
9006 layout.text_align,
9007 Some(layout.content_width),
9008 window,
9009 cx,
9010 )
9011 .log_err();
9012 fragment_origin.x += line.width;
9013 }
9014 LineFragment::Element { size, .. } => {
9015 fragment_origin.x += size.width;
9016 }
9017 }
9018 }
9019
9020 self.draw_invisibles(
9021 selection_ranges,
9022 layout,
9023 content_origin,
9024 line_y,
9025 row,
9026 line_height,
9027 whitespace_setting,
9028 window,
9029 cx,
9030 );
9031 }
9032
9033 fn draw_background(
9034 &self,
9035 layout: &EditorLayout,
9036 row: DisplayRow,
9037 content_origin: gpui::Point<Pixels>,
9038 window: &mut Window,
9039 cx: &mut App,
9040 ) {
9041 let line_height = layout.position_map.line_height;
9042 let line_y = line_height * (row.as_f64() - layout.position_map.scroll_position.y) as f32;
9043
9044 let mut fragment_origin = content_origin
9045 + gpui::point(
9046 Pixels::from(-layout.position_map.scroll_pixel_position.x),
9047 line_y,
9048 );
9049
9050 for fragment in &self.fragments {
9051 match fragment {
9052 LineFragment::Text(line) => {
9053 line.paint_background(
9054 fragment_origin,
9055 line_height,
9056 layout.text_align,
9057 Some(layout.content_width),
9058 window,
9059 cx,
9060 )
9061 .log_err();
9062 fragment_origin.x += line.width;
9063 }
9064 LineFragment::Element { size, .. } => {
9065 fragment_origin.x += size.width;
9066 }
9067 }
9068 }
9069 }
9070
9071 fn draw_invisibles(
9072 &self,
9073 selection_ranges: &[Range<DisplayPoint>],
9074 layout: &EditorLayout,
9075 content_origin: gpui::Point<Pixels>,
9076 line_y: Pixels,
9077 row: DisplayRow,
9078 line_height: Pixels,
9079 whitespace_setting: ShowWhitespaceSetting,
9080 window: &mut Window,
9081 cx: &mut App,
9082 ) {
9083 let extract_whitespace_info = |invisible: &Invisible| {
9084 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
9085 Invisible::Tab {
9086 line_start_offset,
9087 line_end_offset,
9088 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
9089 Invisible::Whitespace { line_offset } => {
9090 (*line_offset, line_offset + 1, &layout.space_invisible)
9091 }
9092 };
9093
9094 let x_offset: ScrollPixelOffset = self.x_for_index(token_offset).into();
9095 let invisible_offset: ScrollPixelOffset =
9096 ((layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0)
9097 .into();
9098 let origin = content_origin
9099 + gpui::point(
9100 Pixels::from(
9101 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
9102 ),
9103 line_y,
9104 );
9105
9106 (
9107 [token_offset, token_end_offset],
9108 Box::new(move |window: &mut Window, cx: &mut App| {
9109 invisible_symbol
9110 .paint(origin, line_height, TextAlign::Left, None, window, cx)
9111 .log_err();
9112 }),
9113 )
9114 };
9115
9116 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
9117 match whitespace_setting {
9118 ShowWhitespaceSetting::None => (),
9119 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
9120 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
9121 let invisible_point = DisplayPoint::new(row, start as u32);
9122 if !selection_ranges
9123 .iter()
9124 .any(|region| region.start <= invisible_point && invisible_point < region.end)
9125 {
9126 return;
9127 }
9128
9129 paint(window, cx);
9130 }),
9131
9132 ShowWhitespaceSetting::Trailing => {
9133 let mut previous_start = self.len;
9134 for ([start, end], paint) in invisible_iter.rev() {
9135 if previous_start != end {
9136 break;
9137 }
9138 previous_start = start;
9139 paint(window, cx);
9140 }
9141 }
9142
9143 // For a whitespace to be on a boundary, any of the following conditions need to be met:
9144 // - It is a tab
9145 // - It is adjacent to an edge (start or end)
9146 // - It is adjacent to a whitespace (left or right)
9147 ShowWhitespaceSetting::Boundary => {
9148 // 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
9149 // the above cases.
9150 // Note: We zip in the original `invisibles` to check for tab equality
9151 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
9152 for (([start, end], paint), invisible) in
9153 invisible_iter.zip_eq(self.invisibles.iter())
9154 {
9155 let should_render = match (&last_seen, invisible) {
9156 (_, Invisible::Tab { .. }) => true,
9157 (Some((_, last_end, _)), _) => *last_end == start,
9158 _ => false,
9159 };
9160
9161 if should_render || start == 0 || end == self.len {
9162 paint(window, cx);
9163
9164 // Since we are scanning from the left, we will skip over the first available whitespace that is part
9165 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
9166 if let Some((should_render_last, last_end, paint_last)) = last_seen {
9167 // Note that we need to make sure that the last one is actually adjacent
9168 if !should_render_last && last_end == start {
9169 paint_last(window, cx);
9170 }
9171 }
9172 }
9173
9174 // Manually render anything within a selection
9175 let invisible_point = DisplayPoint::new(row, start as u32);
9176 if selection_ranges.iter().any(|region| {
9177 region.start <= invisible_point && invisible_point < region.end
9178 }) {
9179 paint(window, cx);
9180 }
9181
9182 last_seen = Some((should_render, end, paint));
9183 }
9184 }
9185 }
9186 }
9187
9188 pub fn x_for_index(&self, index: usize) -> Pixels {
9189 let mut fragment_start_x = Pixels::ZERO;
9190 let mut fragment_start_index = 0;
9191
9192 for fragment in &self.fragments {
9193 match fragment {
9194 LineFragment::Text(shaped_line) => {
9195 let fragment_end_index = fragment_start_index + shaped_line.len;
9196 if index < fragment_end_index {
9197 return fragment_start_x
9198 + shaped_line.x_for_index(index - fragment_start_index);
9199 }
9200 fragment_start_x += shaped_line.width;
9201 fragment_start_index = fragment_end_index;
9202 }
9203 LineFragment::Element { len, size, .. } => {
9204 let fragment_end_index = fragment_start_index + len;
9205 if index < fragment_end_index {
9206 return fragment_start_x;
9207 }
9208 fragment_start_x += size.width;
9209 fragment_start_index = fragment_end_index;
9210 }
9211 }
9212 }
9213
9214 fragment_start_x
9215 }
9216
9217 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
9218 let mut fragment_start_x = Pixels::ZERO;
9219 let mut fragment_start_index = 0;
9220
9221 for fragment in &self.fragments {
9222 match fragment {
9223 LineFragment::Text(shaped_line) => {
9224 let fragment_end_x = fragment_start_x + shaped_line.width;
9225 if x < fragment_end_x {
9226 return Some(
9227 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
9228 );
9229 }
9230 fragment_start_x = fragment_end_x;
9231 fragment_start_index += shaped_line.len;
9232 }
9233 LineFragment::Element { len, size, .. } => {
9234 let fragment_end_x = fragment_start_x + size.width;
9235 if x < fragment_end_x {
9236 return Some(fragment_start_index);
9237 }
9238 fragment_start_index += len;
9239 fragment_start_x = fragment_end_x;
9240 }
9241 }
9242 }
9243
9244 None
9245 }
9246
9247 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
9248 let mut fragment_start_index = 0;
9249
9250 for fragment in &self.fragments {
9251 match fragment {
9252 LineFragment::Text(shaped_line) => {
9253 let fragment_end_index = fragment_start_index + shaped_line.len;
9254 if index < fragment_end_index {
9255 return shaped_line.font_id_for_index(index - fragment_start_index);
9256 }
9257 fragment_start_index = fragment_end_index;
9258 }
9259 LineFragment::Element { len, .. } => {
9260 let fragment_end_index = fragment_start_index + len;
9261 if index < fragment_end_index {
9262 return None;
9263 }
9264 fragment_start_index = fragment_end_index;
9265 }
9266 }
9267 }
9268
9269 None
9270 }
9271
9272 pub fn alignment_offset(&self, text_align: TextAlign, content_width: Pixels) -> Pixels {
9273 let line_width = self.width;
9274 match text_align {
9275 TextAlign::Left => px(0.0),
9276 TextAlign::Center => (content_width - line_width) / 2.0,
9277 TextAlign::Right => content_width - line_width,
9278 }
9279 }
9280}
9281
9282#[derive(Debug, Clone, Copy, PartialEq, Eq)]
9283enum Invisible {
9284 /// A tab character
9285 ///
9286 /// A tab character is internally represented by spaces (configured by the user's tab width)
9287 /// aligned to the nearest column, so it's necessary to store the start and end offset for
9288 /// adjacency checks.
9289 Tab {
9290 line_start_offset: usize,
9291 line_end_offset: usize,
9292 },
9293 Whitespace {
9294 line_offset: usize,
9295 },
9296}
9297
9298impl EditorElement {
9299 /// Returns the rem size to use when rendering the [`EditorElement`].
9300 ///
9301 /// This allows UI elements to scale based on the `buffer_font_size`.
9302 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
9303 match self.editor.read(cx).mode {
9304 EditorMode::Full {
9305 scale_ui_elements_with_buffer_font_size: true,
9306 ..
9307 }
9308 | EditorMode::Minimap { .. } => {
9309 let buffer_font_size = self.style.text.font_size;
9310 match buffer_font_size {
9311 AbsoluteLength::Pixels(pixels) => {
9312 let rem_size_scale = {
9313 // Our default UI font size is 14px on a 16px base scale.
9314 // This means the default UI font size is 0.875rems.
9315 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
9316
9317 // We then determine the delta between a single rem and the default font
9318 // size scale.
9319 let default_font_size_delta = 1. - default_font_size_scale;
9320
9321 // Finally, we add this delta to 1rem to get the scale factor that
9322 // should be used to scale up the UI.
9323 1. + default_font_size_delta
9324 };
9325
9326 Some(pixels * rem_size_scale)
9327 }
9328 AbsoluteLength::Rems(rems) => {
9329 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
9330 }
9331 }
9332 }
9333 // We currently use single-line and auto-height editors in UI contexts,
9334 // so we don't want to scale everything with the buffer font size, as it
9335 // ends up looking off.
9336 _ => None,
9337 }
9338 }
9339
9340 fn editor_with_selections(&self, cx: &App) -> Option<Entity<Editor>> {
9341 if let EditorMode::Minimap { parent } = self.editor.read(cx).mode() {
9342 parent.upgrade()
9343 } else {
9344 Some(self.editor.clone())
9345 }
9346 }
9347}
9348
9349#[derive(Default)]
9350pub struct EditorRequestLayoutState {
9351 // We use prepaint depth to limit the number of times prepaint is
9352 // called recursively. We need this so that we can update stale
9353 // data for e.g. block heights in block map.
9354 prepaint_depth: Rc<Cell<usize>>,
9355}
9356
9357impl EditorRequestLayoutState {
9358 // In ideal conditions we only need one more subsequent prepaint call for resize to take effect.
9359 // i.e. MAX_PREPAINT_DEPTH = 2, but since moving blocks inline (place_near), more lines from
9360 // below get exposed, and we end up querying blocks for those lines too in subsequent renders.
9361 // Setting MAX_PREPAINT_DEPTH = 3, passes all tests. Just to be on the safe side we set it to 5, so
9362 // that subsequent shrinking does not lead to incorrect block placing.
9363 const MAX_PREPAINT_DEPTH: usize = 5;
9364
9365 fn increment_prepaint_depth(&self) -> EditorPrepaintGuard {
9366 let depth = self.prepaint_depth.get();
9367 self.prepaint_depth.set(depth + 1);
9368 EditorPrepaintGuard {
9369 prepaint_depth: self.prepaint_depth.clone(),
9370 }
9371 }
9372
9373 fn can_prepaint(&self) -> bool {
9374 self.prepaint_depth.get() < Self::MAX_PREPAINT_DEPTH
9375 }
9376}
9377
9378struct EditorPrepaintGuard {
9379 prepaint_depth: Rc<Cell<usize>>,
9380}
9381
9382impl Drop for EditorPrepaintGuard {
9383 fn drop(&mut self) {
9384 let depth = self.prepaint_depth.get();
9385 self.prepaint_depth.set(depth.saturating_sub(1));
9386 }
9387}
9388
9389impl Element for EditorElement {
9390 type RequestLayoutState = EditorRequestLayoutState;
9391 type PrepaintState = EditorLayout;
9392
9393 fn id(&self) -> Option<ElementId> {
9394 None
9395 }
9396
9397 fn source_location(&self) -> Option<&'static core::panic::Location<'static>> {
9398 None
9399 }
9400
9401 fn request_layout(
9402 &mut self,
9403 _: Option<&GlobalElementId>,
9404 _inspector_id: Option<&gpui::InspectorElementId>,
9405 window: &mut Window,
9406 cx: &mut App,
9407 ) -> (gpui::LayoutId, Self::RequestLayoutState) {
9408 let rem_size = self.rem_size(cx);
9409 window.with_rem_size(rem_size, |window| {
9410 self.editor.update(cx, |editor, cx| {
9411 editor.set_style(self.style.clone(), window, cx);
9412
9413 let layout_id = match editor.mode {
9414 EditorMode::SingleLine => {
9415 let rem_size = window.rem_size();
9416 let height = self.style.text.line_height_in_pixels(rem_size);
9417 let mut style = Style::default();
9418 style.size.height = height.into();
9419 style.size.width = relative(1.).into();
9420 window.request_layout(style, None, cx)
9421 }
9422 EditorMode::AutoHeight {
9423 min_lines,
9424 max_lines,
9425 } => {
9426 let editor_handle = cx.entity();
9427 window.request_measured_layout(
9428 Style::default(),
9429 move |known_dimensions, available_space, window, cx| {
9430 editor_handle
9431 .update(cx, |editor, cx| {
9432 compute_auto_height_layout(
9433 editor,
9434 min_lines,
9435 max_lines,
9436 known_dimensions,
9437 available_space.width,
9438 window,
9439 cx,
9440 )
9441 })
9442 .unwrap_or_default()
9443 },
9444 )
9445 }
9446 EditorMode::Minimap { .. } => {
9447 let mut style = Style::default();
9448 style.size.width = relative(1.).into();
9449 style.size.height = relative(1.).into();
9450 window.request_layout(style, None, cx)
9451 }
9452 EditorMode::Full {
9453 sizing_behavior, ..
9454 } => {
9455 let mut style = Style::default();
9456 style.size.width = relative(1.).into();
9457 if sizing_behavior == SizingBehavior::SizeByContent {
9458 let snapshot = editor.snapshot(window, cx);
9459 let line_height =
9460 self.style.text.line_height_in_pixels(window.rem_size());
9461 let scroll_height =
9462 (snapshot.max_point().row().next_row().0 as f32) * line_height;
9463 style.size.height = scroll_height.into();
9464 } else {
9465 style.size.height = relative(1.).into();
9466 }
9467 window.request_layout(style, None, cx)
9468 }
9469 };
9470
9471 (layout_id, EditorRequestLayoutState::default())
9472 })
9473 })
9474 }
9475
9476 fn prepaint(
9477 &mut self,
9478 _: Option<&GlobalElementId>,
9479 _inspector_id: Option<&gpui::InspectorElementId>,
9480 bounds: Bounds<Pixels>,
9481 request_layout: &mut Self::RequestLayoutState,
9482 window: &mut Window,
9483 cx: &mut App,
9484 ) -> Self::PrepaintState {
9485 let _prepaint_depth_guard = request_layout.increment_prepaint_depth();
9486 let text_style = TextStyleRefinement {
9487 font_size: Some(self.style.text.font_size),
9488 line_height: Some(self.style.text.line_height),
9489 ..Default::default()
9490 };
9491
9492 let is_minimap = self.editor.read(cx).mode.is_minimap();
9493 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
9494
9495 if !is_minimap {
9496 let focus_handle = self.editor.focus_handle(cx);
9497 window.set_view_id(self.editor.entity_id());
9498 window.set_focus_handle(&focus_handle, cx);
9499 }
9500
9501 let rem_size = self.rem_size(cx);
9502 window.with_rem_size(rem_size, |window| {
9503 window.with_text_style(Some(text_style), |window| {
9504 window.with_content_mask(Some(ContentMask { bounds }), |window| {
9505 let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| {
9506 (editor.snapshot(window, cx), editor.read_only(cx))
9507 });
9508 let style = &self.style;
9509
9510 let rem_size = window.rem_size();
9511 let font_id = window.text_system().resolve_font(&style.text.font());
9512 let font_size = style.text.font_size.to_pixels(rem_size);
9513 let line_height = style.text.line_height_in_pixels(rem_size);
9514 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
9515 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
9516 let glyph_grid_cell = size(em_advance, line_height);
9517
9518 let gutter_dimensions =
9519 snapshot.gutter_dimensions(font_id, font_size, style, window, cx);
9520 let text_width = bounds.size.width - gutter_dimensions.width;
9521
9522 let settings = EditorSettings::get_global(cx);
9523 let scrollbars_shown = settings.scrollbar.show != ShowScrollbar::Never;
9524 let vertical_scrollbar_width = (scrollbars_shown
9525 && settings.scrollbar.axes.vertical
9526 && self.editor.read(cx).show_scrollbars.vertical)
9527 .then_some(style.scrollbar_width)
9528 .unwrap_or_default();
9529 let minimap_width = self
9530 .get_minimap_width(
9531 &settings.minimap,
9532 scrollbars_shown,
9533 text_width,
9534 em_width,
9535 font_size,
9536 rem_size,
9537 cx,
9538 )
9539 .unwrap_or_default();
9540
9541 let right_margin = minimap_width + vertical_scrollbar_width;
9542
9543 let editor_width =
9544 text_width - gutter_dimensions.margin - 2 * em_width - right_margin;
9545 let editor_margins = EditorMargins {
9546 gutter: gutter_dimensions,
9547 right: right_margin,
9548 };
9549
9550 snapshot = self.editor.update(cx, |editor, cx| {
9551 editor.last_bounds = Some(bounds);
9552 editor.gutter_dimensions = gutter_dimensions;
9553 editor.set_visible_line_count(
9554 (bounds.size.height / line_height) as f64,
9555 window,
9556 cx,
9557 );
9558 editor.set_visible_column_count(f64::from(editor_width / em_advance));
9559
9560 if matches!(
9561 editor.mode,
9562 EditorMode::AutoHeight { .. } | EditorMode::Minimap { .. }
9563 ) {
9564 snapshot
9565 } else {
9566 let wrap_width_for = |column: u32| (column as f32 * em_advance).ceil();
9567 let wrap_width = match editor.soft_wrap_mode(cx) {
9568 SoftWrap::GitDiff => None,
9569 SoftWrap::None => Some(wrap_width_for(MAX_LINE_LEN as u32 / 2)),
9570 SoftWrap::EditorWidth => Some(editor_width),
9571 SoftWrap::Column(column) => Some(wrap_width_for(column)),
9572 SoftWrap::Bounded(column) => {
9573 Some(editor_width.min(wrap_width_for(column)))
9574 }
9575 };
9576
9577 if editor.set_wrap_width(wrap_width, cx) {
9578 editor.snapshot(window, cx)
9579 } else {
9580 snapshot
9581 }
9582 }
9583 });
9584
9585 let hitbox = window.insert_hitbox(bounds, HitboxBehavior::Normal);
9586 let gutter_hitbox = window.insert_hitbox(
9587 gutter_bounds(bounds, gutter_dimensions),
9588 HitboxBehavior::Normal,
9589 );
9590 let text_hitbox = window.insert_hitbox(
9591 Bounds {
9592 origin: gutter_hitbox.top_right(),
9593 size: size(text_width, bounds.size.height),
9594 },
9595 HitboxBehavior::Normal,
9596 );
9597
9598 // Offset the content_bounds from the text_bounds by the gutter margin (which
9599 // is roughly half a character wide) to make hit testing work more like how we want.
9600 let content_offset = point(editor_margins.gutter.margin, Pixels::ZERO);
9601 let content_origin = text_hitbox.origin + content_offset;
9602
9603 let height_in_lines = f64::from(bounds.size.height / line_height);
9604 let max_row = snapshot.max_point().row().as_f64();
9605
9606 // Calculate how much of the editor is clipped by parent containers (e.g., List).
9607 // This allows us to only render lines that are actually visible, which is
9608 // critical for performance when large AutoHeight editors are inside Lists.
9609 let visible_bounds = window.content_mask().bounds;
9610 let clipped_top = (visible_bounds.origin.y - bounds.origin.y).max(px(0.));
9611 let clipped_top_in_lines = f64::from(clipped_top / line_height);
9612 let visible_height_in_lines =
9613 f64::from(visible_bounds.size.height / line_height);
9614
9615 // The max scroll position for the top of the window
9616 let max_scroll_top = if matches!(
9617 snapshot.mode,
9618 EditorMode::SingleLine
9619 | EditorMode::AutoHeight { .. }
9620 | EditorMode::Full {
9621 sizing_behavior: SizingBehavior::ExcludeOverscrollMargin
9622 | SizingBehavior::SizeByContent,
9623 ..
9624 }
9625 ) {
9626 (max_row - height_in_lines + 1.).max(0.)
9627 } else {
9628 let settings = EditorSettings::get_global(cx);
9629 match settings.scroll_beyond_last_line {
9630 ScrollBeyondLastLine::OnePage => max_row,
9631 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
9632 ScrollBeyondLastLine::VerticalScrollMargin => {
9633 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
9634 .max(0.)
9635 }
9636 }
9637 };
9638
9639 // When jumping from one side of a side-by-side diff to the
9640 // other, we autoscroll autoscroll to keep the target range in view.
9641 //
9642 // If our scroll companion has a pending autoscroll request, process it
9643 // first so that both editors render with synchronized scroll positions.
9644 // This is important for split diff views where one editor may prepaint
9645 // before the other.
9646 if let Some(companion) = self
9647 .editor
9648 .read(cx)
9649 .scroll_companion()
9650 .and_then(|c| c.upgrade())
9651 {
9652 if companion.read(cx).scroll_manager.has_autoscroll_request() {
9653 companion.update(cx, |companion_editor, cx| {
9654 let companion_autoscroll_request =
9655 companion_editor.scroll_manager.take_autoscroll_request();
9656 companion_editor.autoscroll_vertically(
9657 bounds,
9658 line_height,
9659 max_scroll_top,
9660 companion_autoscroll_request,
9661 window,
9662 cx,
9663 );
9664 });
9665 snapshot = self
9666 .editor
9667 .update(cx, |editor, cx| editor.snapshot(window, cx));
9668 }
9669 }
9670
9671 let (
9672 autoscroll_request,
9673 autoscroll_containing_element,
9674 needs_horizontal_autoscroll,
9675 ) = self.editor.update(cx, |editor, cx| {
9676 let autoscroll_request = editor.scroll_manager.take_autoscroll_request();
9677
9678 let autoscroll_containing_element =
9679 autoscroll_request.is_some() || editor.has_pending_selection();
9680
9681 let (needs_horizontal_autoscroll, was_scrolled) = editor
9682 .autoscroll_vertically(
9683 bounds,
9684 line_height,
9685 max_scroll_top,
9686 autoscroll_request,
9687 window,
9688 cx,
9689 );
9690 if was_scrolled.0 {
9691 snapshot = editor.snapshot(window, cx);
9692 }
9693 (
9694 autoscroll_request,
9695 autoscroll_containing_element,
9696 needs_horizontal_autoscroll,
9697 )
9698 });
9699
9700 let mut scroll_position = snapshot.scroll_position();
9701 // The scroll position is a fractional point, the whole number of which represents
9702 // the top of the window in terms of display rows.
9703 // We add clipped_top_in_lines to skip rows that are clipped by parent containers,
9704 // but we don't modify scroll_position itself since the parent handles positioning.
9705 let max_row = snapshot.max_point().row();
9706 let start_row = cmp::min(
9707 DisplayRow((scroll_position.y + clipped_top_in_lines).floor() as u32),
9708 max_row,
9709 );
9710 let end_row = cmp::min(
9711 (scroll_position.y + clipped_top_in_lines + visible_height_in_lines).ceil()
9712 as u32,
9713 max_row.next_row().0,
9714 );
9715 let end_row = DisplayRow(end_row);
9716
9717 let row_infos = snapshot // note we only get the visual range
9718 .row_infos(start_row)
9719 .take((start_row..end_row).len())
9720 .collect::<Vec<RowInfo>>();
9721 let is_row_soft_wrapped = |row: usize| {
9722 row_infos
9723 .get(row)
9724 .is_none_or(|info| info.buffer_row.is_none())
9725 };
9726
9727 let start_anchor = if start_row == Default::default() {
9728 Anchor::min()
9729 } else {
9730 snapshot.buffer_snapshot().anchor_before(
9731 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
9732 )
9733 };
9734 let end_anchor = if end_row > max_row {
9735 Anchor::max()
9736 } else {
9737 snapshot.buffer_snapshot().anchor_before(
9738 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
9739 )
9740 };
9741
9742 let mut highlighted_rows = self
9743 .editor
9744 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
9745
9746 let is_light = cx.theme().appearance().is_light();
9747
9748 let mut highlighted_ranges = self
9749 .editor_with_selections(cx)
9750 .map(|editor| {
9751 editor.read(cx).background_highlights_in_range(
9752 start_anchor..end_anchor,
9753 &snapshot.display_snapshot,
9754 cx.theme(),
9755 )
9756 })
9757 .unwrap_or_default();
9758
9759 for (ix, row_info) in row_infos.iter().enumerate() {
9760 let Some(diff_status) = row_info.diff_status else {
9761 continue;
9762 };
9763
9764 let background_color = match diff_status.kind {
9765 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
9766 DiffHunkStatusKind::Deleted => {
9767 cx.theme().colors().version_control_deleted
9768 }
9769 DiffHunkStatusKind::Modified => {
9770 debug_panic!("modified diff status for row info");
9771 continue;
9772 }
9773 };
9774
9775 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
9776
9777 let hollow_highlight = LineHighlight {
9778 background: (background_color.opacity(if is_light {
9779 0.08
9780 } else {
9781 0.06
9782 }))
9783 .into(),
9784 border: Some(if is_light {
9785 background_color.opacity(0.48)
9786 } else {
9787 background_color.opacity(0.36)
9788 }),
9789 include_gutter: true,
9790 type_id: None,
9791 };
9792
9793 let filled_highlight = LineHighlight {
9794 background: solid_background(background_color.opacity(hunk_opacity)),
9795 border: None,
9796 include_gutter: true,
9797 type_id: None,
9798 };
9799
9800 let background = if Self::diff_hunk_hollow(diff_status, cx) {
9801 hollow_highlight
9802 } else {
9803 filled_highlight
9804 };
9805
9806 let base_display_point =
9807 DisplayPoint::new(start_row + DisplayRow(ix as u32), 0);
9808
9809 highlighted_rows
9810 .entry(base_display_point.row())
9811 .or_insert(background);
9812 }
9813
9814 // Add diff review drag selection highlight to text area
9815 if let Some(drag_state) = &self.editor.read(cx).diff_review_drag_state {
9816 let range = drag_state.row_range(&snapshot.display_snapshot);
9817 let start_row = range.start().0;
9818 let end_row = range.end().0;
9819 let drag_highlight_color =
9820 cx.theme().colors().editor_active_line_background;
9821 let drag_highlight = LineHighlight {
9822 background: solid_background(drag_highlight_color),
9823 border: Some(cx.theme().colors().border_focused),
9824 include_gutter: true,
9825 type_id: None,
9826 };
9827 for row_num in start_row..=end_row {
9828 highlighted_rows
9829 .entry(DisplayRow(row_num))
9830 .or_insert(drag_highlight);
9831 }
9832 }
9833
9834 let highlighted_gutter_ranges =
9835 self.editor.read(cx).gutter_highlights_in_range(
9836 start_anchor..end_anchor,
9837 &snapshot.display_snapshot,
9838 cx,
9839 );
9840
9841 let document_colors = self
9842 .editor
9843 .read(cx)
9844 .colors
9845 .as_ref()
9846 .map(|colors| colors.editor_display_highlights(&snapshot));
9847 let redacted_ranges = self.editor.read(cx).redacted_ranges(
9848 start_anchor..end_anchor,
9849 &snapshot.display_snapshot,
9850 cx,
9851 );
9852
9853 let (local_selections, selected_buffer_ids, latest_selection_anchors): (
9854 Vec<Selection<Point>>,
9855 Vec<BufferId>,
9856 HashMap<BufferId, Anchor>,
9857 ) = self
9858 .editor_with_selections(cx)
9859 .map(|editor| {
9860 editor.update(cx, |editor, cx| {
9861 let all_selections =
9862 editor.selections.all::<Point>(&snapshot.display_snapshot);
9863 let all_anchor_selections =
9864 editor.selections.all_anchors(&snapshot.display_snapshot);
9865 let selected_buffer_ids =
9866 if editor.buffer_kind(cx) == ItemBufferKind::Singleton {
9867 Vec::new()
9868 } else {
9869 let mut selected_buffer_ids =
9870 Vec::with_capacity(all_selections.len());
9871
9872 for selection in all_selections {
9873 for buffer_id in snapshot
9874 .buffer_snapshot()
9875 .buffer_ids_for_range(selection.range())
9876 {
9877 if selected_buffer_ids.last() != Some(&buffer_id) {
9878 selected_buffer_ids.push(buffer_id);
9879 }
9880 }
9881 }
9882
9883 selected_buffer_ids
9884 };
9885
9886 let mut selections = editor.selections.disjoint_in_range(
9887 start_anchor..end_anchor,
9888 &snapshot.display_snapshot,
9889 );
9890 selections
9891 .extend(editor.selections.pending(&snapshot.display_snapshot));
9892
9893 let mut anchors_by_buffer: HashMap<BufferId, (usize, Anchor)> =
9894 HashMap::default();
9895 for selection in all_anchor_selections.iter() {
9896 let head = selection.head();
9897 if let Some(buffer_id) = head.text_anchor.buffer_id {
9898 anchors_by_buffer
9899 .entry(buffer_id)
9900 .and_modify(|(latest_id, latest_anchor)| {
9901 if selection.id > *latest_id {
9902 *latest_id = selection.id;
9903 *latest_anchor = head;
9904 }
9905 })
9906 .or_insert((selection.id, head));
9907 }
9908 }
9909 let latest_selection_anchors = anchors_by_buffer
9910 .into_iter()
9911 .map(|(buffer_id, (_, anchor))| (buffer_id, anchor))
9912 .collect();
9913
9914 (selections, selected_buffer_ids, latest_selection_anchors)
9915 })
9916 })
9917 .unwrap_or_else(|| (Vec::new(), Vec::new(), HashMap::default()));
9918
9919 let (selections, mut active_rows, newest_selection_head) = self
9920 .layout_selections(
9921 start_anchor,
9922 end_anchor,
9923 &local_selections,
9924 &snapshot,
9925 start_row,
9926 end_row,
9927 window,
9928 cx,
9929 );
9930
9931 // relative rows are based on newest selection, even outside the visible area
9932 let current_selection_head = self.editor.update(cx, |editor, cx| {
9933 (editor.selections.count() != 0).then(|| {
9934 let newest = editor
9935 .selections
9936 .newest::<Point>(&editor.display_snapshot(cx));
9937
9938 SelectionLayout::new(
9939 newest,
9940 editor.selections.line_mode(),
9941 editor.cursor_offset_on_selection,
9942 editor.cursor_shape,
9943 &snapshot,
9944 true,
9945 true,
9946 None,
9947 )
9948 .head
9949 .row()
9950 })
9951 });
9952
9953 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
9954 editor.active_breakpoints(start_row..end_row, window, cx)
9955 });
9956 for (display_row, (_, bp, state)) in &breakpoint_rows {
9957 if bp.is_enabled() && state.is_none_or(|s| s.verified) {
9958 active_rows.entry(*display_row).or_default().breakpoint = true;
9959 }
9960 }
9961
9962 let line_numbers = self.layout_line_numbers(
9963 Some(&gutter_hitbox),
9964 gutter_dimensions,
9965 line_height,
9966 scroll_position,
9967 start_row..end_row,
9968 &row_infos,
9969 &active_rows,
9970 current_selection_head,
9971 &snapshot,
9972 window,
9973 cx,
9974 );
9975
9976 // We add the gutter breakpoint indicator to breakpoint_rows after painting
9977 // line numbers so we don't paint a line number debug accent color if a user
9978 // has their mouse over that line when a breakpoint isn't there
9979 self.editor.update(cx, |editor, _| {
9980 if let Some(phantom_breakpoint) = &mut editor
9981 .gutter_breakpoint_indicator
9982 .0
9983 .filter(|phantom_breakpoint| phantom_breakpoint.is_active)
9984 {
9985 // Is there a non-phantom breakpoint on this line?
9986 phantom_breakpoint.collides_with_existing_breakpoint = true;
9987 breakpoint_rows
9988 .entry(phantom_breakpoint.display_row)
9989 .or_insert_with(|| {
9990 let position = snapshot.display_point_to_anchor(
9991 DisplayPoint::new(phantom_breakpoint.display_row, 0),
9992 Bias::Right,
9993 );
9994 let breakpoint = Breakpoint::new_standard();
9995 phantom_breakpoint.collides_with_existing_breakpoint = false;
9996 (position, breakpoint, None)
9997 });
9998 }
9999 });
10000
10001 let mut expand_toggles =
10002 window.with_element_namespace("expand_toggles", |window| {
10003 self.layout_expand_toggles(
10004 &gutter_hitbox,
10005 gutter_dimensions,
10006 em_width,
10007 line_height,
10008 scroll_position,
10009 &row_infos,
10010 window,
10011 cx,
10012 )
10013 });
10014
10015 let mut crease_toggles =
10016 window.with_element_namespace("crease_toggles", |window| {
10017 self.layout_crease_toggles(
10018 start_row..end_row,
10019 &row_infos,
10020 &active_rows,
10021 &snapshot,
10022 window,
10023 cx,
10024 )
10025 });
10026 let crease_trailers =
10027 window.with_element_namespace("crease_trailers", |window| {
10028 self.layout_crease_trailers(
10029 row_infos.iter().cloned(),
10030 &snapshot,
10031 window,
10032 cx,
10033 )
10034 });
10035
10036 let display_hunks = self.layout_gutter_diff_hunks(
10037 line_height,
10038 &gutter_hitbox,
10039 start_row..end_row,
10040 &snapshot,
10041 window,
10042 cx,
10043 );
10044
10045 Self::layout_word_diff_highlights(
10046 &display_hunks,
10047 &row_infos,
10048 start_row,
10049 &snapshot,
10050 &mut highlighted_ranges,
10051 cx,
10052 );
10053
10054 let merged_highlighted_ranges =
10055 if let Some((_, colors)) = document_colors.as_ref() {
10056 &highlighted_ranges
10057 .clone()
10058 .into_iter()
10059 .chain(colors.clone())
10060 .collect()
10061 } else {
10062 &highlighted_ranges
10063 };
10064 let bg_segments_per_row = Self::bg_segments_per_row(
10065 start_row..end_row,
10066 &selections,
10067 &merged_highlighted_ranges,
10068 self.style.background,
10069 );
10070
10071 let mut line_layouts = Self::layout_lines(
10072 start_row..end_row,
10073 &snapshot,
10074 &self.style,
10075 editor_width,
10076 is_row_soft_wrapped,
10077 &bg_segments_per_row,
10078 window,
10079 cx,
10080 );
10081 let new_renderer_widths = (!is_minimap).then(|| {
10082 line_layouts
10083 .iter()
10084 .flat_map(|layout| &layout.fragments)
10085 .filter_map(|fragment| {
10086 if let LineFragment::Element { id, size, .. } = fragment {
10087 Some((*id, size.width))
10088 } else {
10089 None
10090 }
10091 })
10092 });
10093 if new_renderer_widths.is_some_and(|new_renderer_widths| {
10094 self.editor.update(cx, |editor, cx| {
10095 editor.update_renderer_widths(new_renderer_widths, cx)
10096 })
10097 }) {
10098 // If the fold widths have changed, we need to prepaint
10099 // the element again to account for any changes in
10100 // wrapping.
10101 if request_layout.can_prepaint() {
10102 return self.prepaint(
10103 None,
10104 _inspector_id,
10105 bounds,
10106 request_layout,
10107 window,
10108 cx,
10109 );
10110 } else {
10111 debug_panic!(concat!(
10112 "skipping recursive prepaint at max depth. ",
10113 "renderer widths may be stale."
10114 ));
10115 }
10116 }
10117
10118 let longest_line_blame_width = self
10119 .editor
10120 .update(cx, |editor, cx| {
10121 if !editor.show_git_blame_inline {
10122 return None;
10123 }
10124 let blame = editor.blame.as_ref()?;
10125 let (_, blame_entry) = blame
10126 .update(cx, |blame, cx| {
10127 let row_infos =
10128 snapshot.row_infos(snapshot.longest_row()).next()?;
10129 blame.blame_for_rows(&[row_infos], cx).next()
10130 })
10131 .flatten()?;
10132 let mut element = render_inline_blame_entry(blame_entry, style, cx)?;
10133 let inline_blame_padding =
10134 ProjectSettings::get_global(cx).git.inline_blame.padding as f32
10135 * em_advance;
10136 Some(
10137 element
10138 .layout_as_root(AvailableSpace::min_size(), window, cx)
10139 .width
10140 + inline_blame_padding,
10141 )
10142 })
10143 .unwrap_or(Pixels::ZERO);
10144
10145 let longest_line_width = layout_line(
10146 snapshot.longest_row(),
10147 &snapshot,
10148 style,
10149 editor_width,
10150 is_row_soft_wrapped,
10151 window,
10152 cx,
10153 )
10154 .width;
10155
10156 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
10157 text_hitbox.bounds,
10158 glyph_grid_cell,
10159 size(
10160 longest_line_width,
10161 Pixels::from(max_row.as_f64() * f64::from(line_height)),
10162 ),
10163 longest_line_blame_width,
10164 EditorSettings::get_global(cx),
10165 );
10166
10167 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
10168
10169 let sticky_header_excerpt = if snapshot.buffer_snapshot().show_headers() {
10170 snapshot.sticky_header_excerpt(scroll_position.y)
10171 } else {
10172 None
10173 };
10174 let sticky_header_excerpt_id =
10175 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
10176
10177 let blocks = (!is_minimap)
10178 .then(|| {
10179 window.with_element_namespace("blocks", |window| {
10180 self.render_blocks(
10181 start_row..end_row,
10182 &snapshot,
10183 &hitbox,
10184 &text_hitbox,
10185 editor_width,
10186 &mut scroll_width,
10187 &editor_margins,
10188 em_width,
10189 gutter_dimensions.full_width(),
10190 line_height,
10191 &mut line_layouts,
10192 &local_selections,
10193 &selected_buffer_ids,
10194 &latest_selection_anchors,
10195 is_row_soft_wrapped,
10196 sticky_header_excerpt_id,
10197 window,
10198 cx,
10199 )
10200 })
10201 })
10202 .unwrap_or_default();
10203 let RenderBlocksOutput {
10204 mut blocks,
10205 row_block_types,
10206 resized_blocks,
10207 } = blocks;
10208 if let Some(resized_blocks) = resized_blocks {
10209 self.editor.update(cx, |editor, cx| {
10210 editor.resize_blocks(
10211 resized_blocks,
10212 autoscroll_request.map(|(autoscroll, _)| autoscroll),
10213 cx,
10214 )
10215 });
10216 if request_layout.can_prepaint() {
10217 return self.prepaint(
10218 None,
10219 _inspector_id,
10220 bounds,
10221 request_layout,
10222 window,
10223 cx,
10224 );
10225 } else {
10226 debug_panic!(concat!(
10227 "skipping recursive prepaint at max depth. ",
10228 "block layout may be stale."
10229 ));
10230 }
10231 }
10232
10233 let sticky_buffer_header = if self.should_show_buffer_headers() {
10234 sticky_header_excerpt.map(|sticky_header_excerpt| {
10235 window.with_element_namespace("blocks", |window| {
10236 self.layout_sticky_buffer_header(
10237 sticky_header_excerpt,
10238 scroll_position,
10239 line_height,
10240 right_margin,
10241 &snapshot,
10242 &hitbox,
10243 &selected_buffer_ids,
10244 &blocks,
10245 &latest_selection_anchors,
10246 window,
10247 cx,
10248 )
10249 })
10250 })
10251 } else {
10252 None
10253 };
10254
10255 let start_buffer_row =
10256 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot()).row);
10257 let end_buffer_row =
10258 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot()).row);
10259
10260 let scroll_max: gpui::Point<ScrollPixelOffset> = point(
10261 ScrollPixelOffset::from(
10262 ((scroll_width - editor_width) / em_advance).max(0.0),
10263 ),
10264 max_scroll_top,
10265 );
10266
10267 self.editor.update(cx, |editor, cx| {
10268 if editor.scroll_manager.clamp_scroll_left(scroll_max.x) {
10269 scroll_position.x = scroll_position.x.min(scroll_max.x);
10270 }
10271
10272 if needs_horizontal_autoscroll.0
10273 && let Some(new_scroll_position) = editor.autoscroll_horizontally(
10274 start_row,
10275 editor_width,
10276 scroll_width,
10277 em_advance,
10278 &line_layouts,
10279 autoscroll_request,
10280 window,
10281 cx,
10282 )
10283 {
10284 scroll_position = new_scroll_position;
10285 }
10286 });
10287
10288 let scroll_pixel_position = point(
10289 scroll_position.x * f64::from(em_advance),
10290 scroll_position.y * f64::from(line_height),
10291 );
10292 let sticky_headers = if !is_minimap
10293 && is_singleton
10294 && EditorSettings::get_global(cx).sticky_scroll.enabled
10295 {
10296 let relative = self.editor.read(cx).relative_line_numbers(cx);
10297 self.layout_sticky_headers(
10298 &snapshot,
10299 editor_width,
10300 is_row_soft_wrapped,
10301 line_height,
10302 scroll_pixel_position,
10303 content_origin,
10304 &gutter_dimensions,
10305 &gutter_hitbox,
10306 &text_hitbox,
10307 &style,
10308 relative,
10309 current_selection_head,
10310 window,
10311 cx,
10312 )
10313 } else {
10314 None
10315 };
10316 self.editor.update(cx, |editor, _| {
10317 editor.scroll_manager.set_sticky_header_line_count(
10318 sticky_headers.as_ref().map_or(0, |h| h.lines.len()),
10319 );
10320 });
10321 let indent_guides = self.layout_indent_guides(
10322 content_origin,
10323 text_hitbox.origin,
10324 start_buffer_row..end_buffer_row,
10325 scroll_pixel_position,
10326 line_height,
10327 &snapshot,
10328 window,
10329 cx,
10330 );
10331
10332 let crease_trailers =
10333 window.with_element_namespace("crease_trailers", |window| {
10334 self.prepaint_crease_trailers(
10335 crease_trailers,
10336 &line_layouts,
10337 line_height,
10338 content_origin,
10339 scroll_pixel_position,
10340 em_width,
10341 window,
10342 cx,
10343 )
10344 });
10345
10346 let (edit_prediction_popover, edit_prediction_popover_origin) = self
10347 .editor
10348 .update(cx, |editor, cx| {
10349 editor.render_edit_prediction_popover(
10350 &text_hitbox.bounds,
10351 content_origin,
10352 right_margin,
10353 &snapshot,
10354 start_row..end_row,
10355 scroll_position.y,
10356 scroll_position.y + height_in_lines,
10357 &line_layouts,
10358 line_height,
10359 scroll_position,
10360 scroll_pixel_position,
10361 newest_selection_head,
10362 editor_width,
10363 style,
10364 window,
10365 cx,
10366 )
10367 })
10368 .unzip();
10369
10370 let mut inline_diagnostics = self.layout_inline_diagnostics(
10371 &line_layouts,
10372 &crease_trailers,
10373 &row_block_types,
10374 content_origin,
10375 scroll_position,
10376 scroll_pixel_position,
10377 edit_prediction_popover_origin,
10378 start_row,
10379 end_row,
10380 line_height,
10381 em_width,
10382 style,
10383 window,
10384 cx,
10385 );
10386
10387 let mut inline_blame_layout = None;
10388 let mut inline_code_actions = None;
10389 if let Some(newest_selection_head) = newest_selection_head {
10390 let display_row = newest_selection_head.row();
10391 if (start_row..end_row).contains(&display_row)
10392 && !row_block_types.contains_key(&display_row)
10393 {
10394 inline_code_actions = self.layout_inline_code_actions(
10395 newest_selection_head,
10396 content_origin,
10397 scroll_position,
10398 scroll_pixel_position,
10399 line_height,
10400 &snapshot,
10401 window,
10402 cx,
10403 );
10404
10405 let line_ix = display_row.minus(start_row) as usize;
10406 if let (Some(row_info), Some(line_layout), Some(crease_trailer)) = (
10407 row_infos.get(line_ix),
10408 line_layouts.get(line_ix),
10409 crease_trailers.get(line_ix),
10410 ) {
10411 let crease_trailer_layout = crease_trailer.as_ref();
10412 if let Some(layout) = self.layout_inline_blame(
10413 display_row,
10414 row_info,
10415 line_layout,
10416 crease_trailer_layout,
10417 em_width,
10418 content_origin,
10419 scroll_position,
10420 scroll_pixel_position,
10421 line_height,
10422 window,
10423 cx,
10424 ) {
10425 inline_blame_layout = Some(layout);
10426 // Blame overrides inline diagnostics
10427 inline_diagnostics.remove(&display_row);
10428 }
10429 } else {
10430 log::error!(
10431 "bug: line_ix {} is out of bounds - row_infos.len(): {}, \
10432 line_layouts.len(): {}, \
10433 crease_trailers.len(): {}",
10434 line_ix,
10435 row_infos.len(),
10436 line_layouts.len(),
10437 crease_trailers.len(),
10438 );
10439 }
10440 }
10441 }
10442
10443 let blamed_display_rows = self.layout_blame_entries(
10444 &row_infos,
10445 em_width,
10446 scroll_position,
10447 line_height,
10448 &gutter_hitbox,
10449 gutter_dimensions.git_blame_entries_width,
10450 window,
10451 cx,
10452 );
10453
10454 let line_elements = self.prepaint_lines(
10455 start_row,
10456 &mut line_layouts,
10457 line_height,
10458 scroll_position,
10459 scroll_pixel_position,
10460 content_origin,
10461 window,
10462 cx,
10463 );
10464
10465 window.with_element_namespace("blocks", |window| {
10466 self.layout_blocks(
10467 &mut blocks,
10468 &hitbox,
10469 line_height,
10470 scroll_position,
10471 scroll_pixel_position,
10472 window,
10473 cx,
10474 );
10475 });
10476
10477 let cursors = self.collect_cursors(&snapshot, cx);
10478 let visible_row_range = start_row..end_row;
10479 let non_visible_cursors = cursors
10480 .iter()
10481 .any(|c| !visible_row_range.contains(&c.0.row()));
10482
10483 let visible_cursors = self.layout_visible_cursors(
10484 &snapshot,
10485 &selections,
10486 &row_block_types,
10487 start_row..end_row,
10488 &line_layouts,
10489 &text_hitbox,
10490 content_origin,
10491 scroll_position,
10492 scroll_pixel_position,
10493 line_height,
10494 em_width,
10495 em_advance,
10496 autoscroll_containing_element,
10497 &redacted_ranges,
10498 window,
10499 cx,
10500 );
10501
10502 let scrollbars_layout = self.layout_scrollbars(
10503 &snapshot,
10504 &scrollbar_layout_information,
10505 content_offset,
10506 scroll_position,
10507 non_visible_cursors,
10508 right_margin,
10509 editor_width,
10510 window,
10511 cx,
10512 );
10513
10514 let gutter_settings = EditorSettings::get_global(cx).gutter;
10515
10516 let context_menu_layout =
10517 if let Some(newest_selection_head) = newest_selection_head {
10518 let newest_selection_point =
10519 newest_selection_head.to_point(&snapshot.display_snapshot);
10520 if (start_row..end_row).contains(&newest_selection_head.row()) {
10521 self.layout_cursor_popovers(
10522 line_height,
10523 &text_hitbox,
10524 content_origin,
10525 right_margin,
10526 start_row,
10527 scroll_pixel_position,
10528 &line_layouts,
10529 newest_selection_head,
10530 newest_selection_point,
10531 style,
10532 window,
10533 cx,
10534 )
10535 } else {
10536 None
10537 }
10538 } else {
10539 None
10540 };
10541
10542 self.layout_gutter_menu(
10543 line_height,
10544 &text_hitbox,
10545 content_origin,
10546 right_margin,
10547 scroll_pixel_position,
10548 gutter_dimensions.width - gutter_dimensions.left_padding,
10549 window,
10550 cx,
10551 );
10552
10553 let test_indicators = if gutter_settings.runnables {
10554 self.layout_run_indicators(
10555 line_height,
10556 start_row..end_row,
10557 &row_infos,
10558 scroll_position,
10559 &gutter_dimensions,
10560 &gutter_hitbox,
10561 &snapshot,
10562 &mut breakpoint_rows,
10563 window,
10564 cx,
10565 )
10566 } else {
10567 Vec::new()
10568 };
10569
10570 let show_breakpoints = snapshot
10571 .show_breakpoints
10572 .unwrap_or(gutter_settings.breakpoints);
10573 let breakpoints = if show_breakpoints {
10574 self.layout_breakpoints(
10575 line_height,
10576 start_row..end_row,
10577 scroll_position,
10578 &gutter_dimensions,
10579 &gutter_hitbox,
10580 &snapshot,
10581 breakpoint_rows,
10582 &row_infos,
10583 window,
10584 cx,
10585 )
10586 } else {
10587 Vec::new()
10588 };
10589
10590 let git_gutter_width = Self::gutter_strip_width(line_height)
10591 + gutter_dimensions
10592 .git_blame_entries_width
10593 .unwrap_or_default();
10594 let available_width = gutter_dimensions.left_padding - git_gutter_width;
10595
10596 let max_line_number_length = self
10597 .editor
10598 .read(cx)
10599 .buffer()
10600 .read(cx)
10601 .snapshot(cx)
10602 .widest_line_number()
10603 .ilog10()
10604 + 1;
10605
10606 let diff_review_button = self
10607 .should_render_diff_review_button(
10608 start_row..end_row,
10609 &row_infos,
10610 &snapshot,
10611 cx,
10612 )
10613 .map(|(display_row, buffer_row)| {
10614 let is_wide = max_line_number_length
10615 >= EditorSettings::get_global(cx).gutter.min_line_number_digits
10616 as u32
10617 && buffer_row.is_some_and(|row| {
10618 (row + 1).ilog10() + 1 == max_line_number_length
10619 })
10620 || gutter_dimensions.right_padding == px(0.);
10621
10622 let button_width = if is_wide {
10623 available_width - px(6.)
10624 } else {
10625 available_width + em_width - px(6.)
10626 };
10627
10628 let button = self.editor.update(cx, |editor, cx| {
10629 editor
10630 .render_diff_review_button(display_row, button_width, cx)
10631 .into_any_element()
10632 });
10633 prepaint_gutter_button(
10634 button,
10635 display_row,
10636 line_height,
10637 &gutter_dimensions,
10638 scroll_position,
10639 &gutter_hitbox,
10640 window,
10641 cx,
10642 )
10643 });
10644
10645 self.layout_signature_help(
10646 &hitbox,
10647 content_origin,
10648 scroll_pixel_position,
10649 newest_selection_head,
10650 start_row,
10651 &line_layouts,
10652 line_height,
10653 em_width,
10654 context_menu_layout,
10655 window,
10656 cx,
10657 );
10658
10659 if !cx.has_active_drag() {
10660 self.layout_hover_popovers(
10661 &snapshot,
10662 &hitbox,
10663 start_row..end_row,
10664 content_origin,
10665 scroll_pixel_position,
10666 &line_layouts,
10667 line_height,
10668 em_width,
10669 context_menu_layout,
10670 window,
10671 cx,
10672 );
10673
10674 self.layout_blame_popover(&snapshot, &hitbox, line_height, window, cx);
10675 }
10676
10677 let mouse_context_menu = self.layout_mouse_context_menu(
10678 &snapshot,
10679 start_row..end_row,
10680 content_origin,
10681 window,
10682 cx,
10683 );
10684
10685 window.with_element_namespace("crease_toggles", |window| {
10686 self.prepaint_crease_toggles(
10687 &mut crease_toggles,
10688 line_height,
10689 &gutter_dimensions,
10690 gutter_settings,
10691 scroll_pixel_position,
10692 &gutter_hitbox,
10693 window,
10694 cx,
10695 )
10696 });
10697
10698 window.with_element_namespace("expand_toggles", |window| {
10699 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
10700 });
10701
10702 let wrap_guides = self.layout_wrap_guides(
10703 em_advance,
10704 scroll_position,
10705 content_origin,
10706 scrollbars_layout.as_ref(),
10707 vertical_scrollbar_width,
10708 &hitbox,
10709 window,
10710 cx,
10711 );
10712
10713 let minimap = window.with_element_namespace("minimap", |window| {
10714 self.layout_minimap(
10715 &snapshot,
10716 minimap_width,
10717 scroll_position,
10718 &scrollbar_layout_information,
10719 scrollbars_layout.as_ref(),
10720 window,
10721 cx,
10722 )
10723 });
10724
10725 let invisible_symbol_font_size = font_size / 2.;
10726 let whitespace_map = &self
10727 .editor
10728 .read(cx)
10729 .buffer
10730 .read(cx)
10731 .language_settings(cx)
10732 .whitespace_map;
10733
10734 let tab_char = whitespace_map.tab.clone();
10735 let tab_len = tab_char.len();
10736 let tab_invisible = window.text_system().shape_line(
10737 tab_char,
10738 invisible_symbol_font_size,
10739 &[TextRun {
10740 len: tab_len,
10741 font: self.style.text.font(),
10742 color: cx.theme().colors().editor_invisible,
10743 ..Default::default()
10744 }],
10745 None,
10746 );
10747
10748 let space_char = whitespace_map.space.clone();
10749 let space_len = space_char.len();
10750 let space_invisible = window.text_system().shape_line(
10751 space_char,
10752 invisible_symbol_font_size,
10753 &[TextRun {
10754 len: space_len,
10755 font: self.style.text.font(),
10756 color: cx.theme().colors().editor_invisible,
10757 ..Default::default()
10758 }],
10759 None,
10760 );
10761
10762 let mode = snapshot.mode.clone();
10763
10764 let (diff_hunk_controls, diff_hunk_control_bounds) = if is_read_only {
10765 (vec![], vec![])
10766 } else {
10767 self.layout_diff_hunk_controls(
10768 start_row..end_row,
10769 &row_infos,
10770 &text_hitbox,
10771 newest_selection_head,
10772 line_height,
10773 right_margin,
10774 scroll_pixel_position,
10775 &display_hunks,
10776 &highlighted_rows,
10777 self.editor.clone(),
10778 window,
10779 cx,
10780 )
10781 };
10782
10783 let position_map = Rc::new(PositionMap {
10784 size: bounds.size,
10785 visible_row_range,
10786 scroll_position,
10787 scroll_pixel_position,
10788 scroll_max,
10789 line_layouts,
10790 line_height,
10791 em_width,
10792 em_advance,
10793 snapshot,
10794 text_align: self.style.text.text_align,
10795 content_width: text_hitbox.size.width,
10796 gutter_hitbox: gutter_hitbox.clone(),
10797 text_hitbox: text_hitbox.clone(),
10798 inline_blame_bounds: inline_blame_layout
10799 .as_ref()
10800 .map(|layout| (layout.bounds, layout.buffer_id, layout.entry.clone())),
10801 display_hunks: display_hunks.clone(),
10802 diff_hunk_control_bounds,
10803 });
10804
10805 self.editor.update(cx, |editor, _| {
10806 editor.last_position_map = Some(position_map.clone())
10807 });
10808
10809 EditorLayout {
10810 mode,
10811 position_map,
10812 visible_display_row_range: start_row..end_row,
10813 wrap_guides,
10814 indent_guides,
10815 hitbox,
10816 gutter_hitbox,
10817 display_hunks,
10818 content_origin,
10819 scrollbars_layout,
10820 minimap,
10821 active_rows,
10822 highlighted_rows,
10823 highlighted_ranges,
10824 highlighted_gutter_ranges,
10825 redacted_ranges,
10826 document_colors,
10827 line_elements,
10828 line_numbers,
10829 blamed_display_rows,
10830 inline_diagnostics,
10831 inline_blame_layout,
10832 inline_code_actions,
10833 blocks,
10834 cursors,
10835 visible_cursors,
10836 selections,
10837 edit_prediction_popover,
10838 diff_hunk_controls,
10839 mouse_context_menu,
10840 test_indicators,
10841 breakpoints,
10842 diff_review_button,
10843 crease_toggles,
10844 crease_trailers,
10845 tab_invisible,
10846 space_invisible,
10847 sticky_buffer_header,
10848 sticky_headers,
10849 expand_toggles,
10850 text_align: self.style.text.text_align,
10851 content_width: text_hitbox.size.width,
10852 }
10853 })
10854 })
10855 })
10856 }
10857
10858 fn paint(
10859 &mut self,
10860 _: Option<&GlobalElementId>,
10861 _inspector_id: Option<&gpui::InspectorElementId>,
10862 bounds: Bounds<gpui::Pixels>,
10863 _: &mut Self::RequestLayoutState,
10864 layout: &mut Self::PrepaintState,
10865 window: &mut Window,
10866 cx: &mut App,
10867 ) {
10868 if !layout.mode.is_minimap() {
10869 let focus_handle = self.editor.focus_handle(cx);
10870 let key_context = self
10871 .editor
10872 .update(cx, |editor, cx| editor.key_context(window, cx));
10873
10874 window.set_key_context(key_context);
10875 window.handle_input(
10876 &focus_handle,
10877 ElementInputHandler::new(bounds, self.editor.clone()),
10878 cx,
10879 );
10880 self.register_actions(window, cx);
10881 self.register_key_listeners(window, cx, layout);
10882 }
10883
10884 let text_style = TextStyleRefinement {
10885 font_size: Some(self.style.text.font_size),
10886 line_height: Some(self.style.text.line_height),
10887 ..Default::default()
10888 };
10889 let rem_size = self.rem_size(cx);
10890 window.with_rem_size(rem_size, |window| {
10891 window.with_text_style(Some(text_style), |window| {
10892 window.with_content_mask(Some(ContentMask { bounds }), |window| {
10893 self.paint_mouse_listeners(layout, window, cx);
10894 self.paint_background(layout, window, cx);
10895 self.paint_indent_guides(layout, window, cx);
10896
10897 if layout.gutter_hitbox.size.width > Pixels::ZERO {
10898 self.paint_blamed_display_rows(layout, window, cx);
10899 self.paint_line_numbers(layout, window, cx);
10900 }
10901
10902 self.paint_text(layout, window, cx);
10903
10904 if layout.gutter_hitbox.size.width > Pixels::ZERO {
10905 self.paint_gutter_highlights(layout, window, cx);
10906 self.paint_gutter_indicators(layout, window, cx);
10907 }
10908
10909 if !layout.blocks.is_empty() {
10910 window.with_element_namespace("blocks", |window| {
10911 self.paint_blocks(layout, window, cx);
10912 });
10913 }
10914
10915 window.with_element_namespace("blocks", |window| {
10916 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
10917 sticky_header.paint(window, cx)
10918 }
10919 });
10920
10921 self.paint_sticky_headers(layout, window, cx);
10922 self.paint_minimap(layout, window, cx);
10923 self.paint_scrollbars(layout, window, cx);
10924 self.paint_edit_prediction_popover(layout, window, cx);
10925 self.paint_mouse_context_menu(layout, window, cx);
10926
10927 if let Some(overlay_painter) = self.overlay_painter.take() {
10928 let data = OverlayPainterData {
10929 editor: &self.editor,
10930 snapshot: &layout.position_map.snapshot,
10931 scroll_position: layout.position_map.snapshot.scroll_position(),
10932 line_height: layout.position_map.line_height,
10933 visible_row_range: layout.visible_display_row_range.clone(),
10934 hitbox: &layout.hitbox,
10935 };
10936 overlay_painter(data, window, cx);
10937 }
10938 });
10939 })
10940 })
10941 }
10942}
10943
10944pub(super) fn gutter_bounds(
10945 editor_bounds: Bounds<Pixels>,
10946 gutter_dimensions: GutterDimensions,
10947) -> Bounds<Pixels> {
10948 Bounds {
10949 origin: editor_bounds.origin,
10950 size: size(gutter_dimensions.width, editor_bounds.size.height),
10951 }
10952}
10953
10954#[derive(Clone, Copy)]
10955struct ContextMenuLayout {
10956 y_flipped: bool,
10957 bounds: Bounds<Pixels>,
10958}
10959
10960/// Holds information required for layouting the editor scrollbars.
10961struct ScrollbarLayoutInformation {
10962 /// The bounds of the editor area (excluding the content offset).
10963 editor_bounds: Bounds<Pixels>,
10964 /// The available range to scroll within the document.
10965 scroll_range: Size<Pixels>,
10966 /// The space available for one glyph in the editor.
10967 glyph_grid_cell: Size<Pixels>,
10968}
10969
10970impl ScrollbarLayoutInformation {
10971 pub fn new(
10972 editor_bounds: Bounds<Pixels>,
10973 glyph_grid_cell: Size<Pixels>,
10974 document_size: Size<Pixels>,
10975 longest_line_blame_width: Pixels,
10976 settings: &EditorSettings,
10977 ) -> Self {
10978 let vertical_overscroll = match settings.scroll_beyond_last_line {
10979 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
10980 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
10981 ScrollBeyondLastLine::VerticalScrollMargin => {
10982 (1.0 + settings.vertical_scroll_margin) as f32 * glyph_grid_cell.height
10983 }
10984 };
10985
10986 let overscroll = size(longest_line_blame_width, vertical_overscroll);
10987
10988 ScrollbarLayoutInformation {
10989 editor_bounds,
10990 scroll_range: document_size + overscroll,
10991 glyph_grid_cell,
10992 }
10993 }
10994}
10995
10996impl IntoElement for EditorElement {
10997 type Element = Self;
10998
10999 fn into_element(self) -> Self::Element {
11000 self
11001 }
11002}
11003
11004pub struct EditorLayout {
11005 position_map: Rc<PositionMap>,
11006 hitbox: Hitbox,
11007 gutter_hitbox: Hitbox,
11008 content_origin: gpui::Point<Pixels>,
11009 scrollbars_layout: Option<EditorScrollbars>,
11010 minimap: Option<MinimapLayout>,
11011 mode: EditorMode,
11012 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
11013 indent_guides: Option<Vec<IndentGuideLayout>>,
11014 visible_display_row_range: Range<DisplayRow>,
11015 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
11016 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
11017 line_elements: SmallVec<[AnyElement; 1]>,
11018 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
11019 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
11020 blamed_display_rows: Option<Vec<AnyElement>>,
11021 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
11022 inline_blame_layout: Option<InlineBlameLayout>,
11023 inline_code_actions: Option<AnyElement>,
11024 blocks: Vec<BlockLayout>,
11025 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
11026 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
11027 redacted_ranges: Vec<Range<DisplayPoint>>,
11028 cursors: Vec<(DisplayPoint, Hsla)>,
11029 visible_cursors: Vec<CursorLayout>,
11030 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
11031 test_indicators: Vec<AnyElement>,
11032 breakpoints: Vec<AnyElement>,
11033 diff_review_button: Option<AnyElement>,
11034 crease_toggles: Vec<Option<AnyElement>>,
11035 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
11036 diff_hunk_controls: Vec<AnyElement>,
11037 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
11038 edit_prediction_popover: Option<AnyElement>,
11039 mouse_context_menu: Option<AnyElement>,
11040 tab_invisible: ShapedLine,
11041 space_invisible: ShapedLine,
11042 sticky_buffer_header: Option<AnyElement>,
11043 sticky_headers: Option<StickyHeaders>,
11044 document_colors: Option<(DocumentColorsRenderMode, Vec<(Range<DisplayPoint>, Hsla)>)>,
11045 text_align: TextAlign,
11046 content_width: Pixels,
11047}
11048
11049struct StickyHeaders {
11050 lines: Vec<StickyHeaderLine>,
11051 gutter_background: Hsla,
11052 content_background: Hsla,
11053 gutter_right_padding: Pixels,
11054}
11055
11056struct StickyHeaderLine {
11057 row: DisplayRow,
11058 offset: Pixels,
11059 line: LineWithInvisibles,
11060 line_number: Option<ShapedLine>,
11061 elements: SmallVec<[AnyElement; 1]>,
11062 available_text_width: Pixels,
11063 target_anchor: Anchor,
11064 hitbox: Hitbox,
11065}
11066
11067impl EditorLayout {
11068 fn line_end_overshoot(&self) -> Pixels {
11069 0.15 * self.position_map.line_height
11070 }
11071}
11072
11073impl StickyHeaders {
11074 fn paint(
11075 &mut self,
11076 layout: &mut EditorLayout,
11077 whitespace_setting: ShowWhitespaceSetting,
11078 window: &mut Window,
11079 cx: &mut App,
11080 ) {
11081 let line_height = layout.position_map.line_height;
11082
11083 for line in self.lines.iter_mut().rev() {
11084 window.paint_layer(
11085 Bounds::new(
11086 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
11087 size(line.hitbox.size.width, line_height),
11088 ),
11089 |window| {
11090 let gutter_bounds = Bounds::new(
11091 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
11092 size(layout.gutter_hitbox.size.width, line_height),
11093 );
11094 window.paint_quad(fill(gutter_bounds, self.gutter_background));
11095
11096 let text_bounds = Bounds::new(
11097 layout.position_map.text_hitbox.origin + point(Pixels::ZERO, line.offset),
11098 size(line.available_text_width, line_height),
11099 );
11100 window.paint_quad(fill(text_bounds, self.content_background));
11101
11102 if line.hitbox.is_hovered(window) {
11103 let hover_overlay = cx.theme().colors().panel_overlay_hover;
11104 window.paint_quad(fill(gutter_bounds, hover_overlay));
11105 window.paint_quad(fill(text_bounds, hover_overlay));
11106 }
11107
11108 line.paint(
11109 layout,
11110 self.gutter_right_padding,
11111 line.available_text_width,
11112 layout.content_origin,
11113 line_height,
11114 whitespace_setting,
11115 window,
11116 cx,
11117 );
11118 },
11119 );
11120
11121 window.set_cursor_style(CursorStyle::PointingHand, &line.hitbox);
11122 }
11123 }
11124}
11125
11126impl StickyHeaderLine {
11127 fn new(
11128 row: DisplayRow,
11129 offset: Pixels,
11130 mut line: LineWithInvisibles,
11131 line_number: Option<ShapedLine>,
11132 target_anchor: Anchor,
11133 line_height: Pixels,
11134 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
11135 content_origin: gpui::Point<Pixels>,
11136 gutter_hitbox: &Hitbox,
11137 text_hitbox: &Hitbox,
11138 window: &mut Window,
11139 cx: &mut App,
11140 ) -> Self {
11141 let mut elements = SmallVec::<[AnyElement; 1]>::new();
11142 line.prepaint_with_custom_offset(
11143 line_height,
11144 scroll_pixel_position,
11145 content_origin,
11146 offset,
11147 &mut elements,
11148 window,
11149 cx,
11150 );
11151
11152 let hitbox_bounds = Bounds::new(
11153 gutter_hitbox.origin + point(Pixels::ZERO, offset),
11154 size(text_hitbox.right() - gutter_hitbox.left(), line_height),
11155 );
11156 let available_text_width =
11157 (hitbox_bounds.size.width - gutter_hitbox.size.width).max(Pixels::ZERO);
11158
11159 Self {
11160 row,
11161 offset,
11162 line,
11163 line_number,
11164 elements,
11165 available_text_width,
11166 target_anchor,
11167 hitbox: window.insert_hitbox(hitbox_bounds, HitboxBehavior::BlockMouseExceptScroll),
11168 }
11169 }
11170
11171 fn paint(
11172 &mut self,
11173 layout: &EditorLayout,
11174 gutter_right_padding: Pixels,
11175 available_text_width: Pixels,
11176 content_origin: gpui::Point<Pixels>,
11177 line_height: Pixels,
11178 whitespace_setting: ShowWhitespaceSetting,
11179 window: &mut Window,
11180 cx: &mut App,
11181 ) {
11182 window.with_content_mask(
11183 Some(ContentMask {
11184 bounds: Bounds::new(
11185 layout.position_map.text_hitbox.bounds.origin
11186 + point(Pixels::ZERO, self.offset),
11187 size(available_text_width, line_height),
11188 ),
11189 }),
11190 |window| {
11191 self.line.draw_with_custom_offset(
11192 layout,
11193 self.row,
11194 content_origin,
11195 self.offset,
11196 whitespace_setting,
11197 &[],
11198 window,
11199 cx,
11200 );
11201 for element in &mut self.elements {
11202 element.paint(window, cx);
11203 }
11204 },
11205 );
11206
11207 if let Some(line_number) = &self.line_number {
11208 let gutter_origin = layout.gutter_hitbox.origin + point(Pixels::ZERO, self.offset);
11209 let gutter_width = layout.gutter_hitbox.size.width;
11210 let origin = point(
11211 gutter_origin.x + gutter_width - gutter_right_padding - line_number.width,
11212 gutter_origin.y,
11213 );
11214 line_number
11215 .paint(origin, line_height, TextAlign::Left, None, window, cx)
11216 .log_err();
11217 }
11218 }
11219}
11220
11221#[derive(Debug)]
11222struct LineNumberSegment {
11223 shaped_line: ShapedLine,
11224 hitbox: Option<Hitbox>,
11225}
11226
11227#[derive(Debug)]
11228struct LineNumberLayout {
11229 segments: SmallVec<[LineNumberSegment; 1]>,
11230}
11231
11232struct ColoredRange<T> {
11233 start: T,
11234 end: T,
11235 color: Hsla,
11236}
11237
11238impl Along for ScrollbarAxes {
11239 type Unit = bool;
11240
11241 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
11242 match axis {
11243 ScrollbarAxis::Horizontal => self.horizontal,
11244 ScrollbarAxis::Vertical => self.vertical,
11245 }
11246 }
11247
11248 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
11249 match axis {
11250 ScrollbarAxis::Horizontal => ScrollbarAxes {
11251 horizontal: f(self.horizontal),
11252 vertical: self.vertical,
11253 },
11254 ScrollbarAxis::Vertical => ScrollbarAxes {
11255 horizontal: self.horizontal,
11256 vertical: f(self.vertical),
11257 },
11258 }
11259 }
11260}
11261
11262#[derive(Clone)]
11263struct EditorScrollbars {
11264 pub vertical: Option<ScrollbarLayout>,
11265 pub horizontal: Option<ScrollbarLayout>,
11266 pub visible: bool,
11267}
11268
11269impl EditorScrollbars {
11270 pub fn from_scrollbar_axes(
11271 show_scrollbar: ScrollbarAxes,
11272 layout_information: &ScrollbarLayoutInformation,
11273 content_offset: gpui::Point<Pixels>,
11274 scroll_position: gpui::Point<f64>,
11275 scrollbar_width: Pixels,
11276 right_margin: Pixels,
11277 editor_width: Pixels,
11278 show_scrollbars: bool,
11279 scrollbar_state: Option<&ActiveScrollbarState>,
11280 window: &mut Window,
11281 ) -> Self {
11282 let ScrollbarLayoutInformation {
11283 editor_bounds,
11284 scroll_range,
11285 glyph_grid_cell,
11286 } = layout_information;
11287
11288 let viewport_size = size(editor_width, editor_bounds.size.height);
11289
11290 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
11291 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
11292 Corner::BottomLeft,
11293 editor_bounds.bottom_left(),
11294 size(
11295 // The horizontal viewport size differs from the space available for the
11296 // horizontal scrollbar, so we have to manually stitch it together here.
11297 editor_bounds.size.width - right_margin,
11298 scrollbar_width,
11299 ),
11300 ),
11301 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
11302 Corner::TopRight,
11303 editor_bounds.top_right(),
11304 size(scrollbar_width, viewport_size.height),
11305 ),
11306 };
11307
11308 let mut create_scrollbar_layout = |axis| {
11309 let viewport_size = viewport_size.along(axis);
11310 let scroll_range = scroll_range.along(axis);
11311
11312 // We always want a vertical scrollbar track for scrollbar diagnostic visibility.
11313 (show_scrollbar.along(axis)
11314 && (axis == ScrollbarAxis::Vertical || scroll_range > viewport_size))
11315 .then(|| {
11316 ScrollbarLayout::new(
11317 window.insert_hitbox(scrollbar_bounds_for(axis), HitboxBehavior::Normal),
11318 viewport_size,
11319 scroll_range,
11320 glyph_grid_cell.along(axis),
11321 content_offset.along(axis),
11322 scroll_position.along(axis),
11323 show_scrollbars,
11324 axis,
11325 )
11326 .with_thumb_state(
11327 scrollbar_state.and_then(|state| state.thumb_state_for_axis(axis)),
11328 )
11329 })
11330 };
11331
11332 Self {
11333 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
11334 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
11335 visible: show_scrollbars,
11336 }
11337 }
11338
11339 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
11340 [
11341 (&self.vertical, ScrollbarAxis::Vertical),
11342 (&self.horizontal, ScrollbarAxis::Horizontal),
11343 ]
11344 .into_iter()
11345 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
11346 }
11347
11348 /// Returns the currently hovered scrollbar axis, if any.
11349 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
11350 self.iter_scrollbars()
11351 .find(|s| s.0.hitbox.is_hovered(window))
11352 }
11353}
11354
11355#[derive(Clone)]
11356struct ScrollbarLayout {
11357 hitbox: Hitbox,
11358 visible_range: Range<ScrollOffset>,
11359 text_unit_size: Pixels,
11360 thumb_bounds: Option<Bounds<Pixels>>,
11361 thumb_state: ScrollbarThumbState,
11362}
11363
11364impl ScrollbarLayout {
11365 const BORDER_WIDTH: Pixels = px(1.0);
11366 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
11367 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
11368 const MIN_THUMB_SIZE: Pixels = px(25.0);
11369
11370 fn new(
11371 scrollbar_track_hitbox: Hitbox,
11372 viewport_size: Pixels,
11373 scroll_range: Pixels,
11374 glyph_space: Pixels,
11375 content_offset: Pixels,
11376 scroll_position: ScrollOffset,
11377 show_thumb: bool,
11378 axis: ScrollbarAxis,
11379 ) -> Self {
11380 let track_bounds = scrollbar_track_hitbox.bounds;
11381 // The length of the track available to the scrollbar thumb. We deliberately
11382 // exclude the content size here so that the thumb aligns with the content.
11383 let track_length = track_bounds.size.along(axis) - content_offset;
11384
11385 Self::new_with_hitbox_and_track_length(
11386 scrollbar_track_hitbox,
11387 track_length,
11388 viewport_size,
11389 scroll_range.into(),
11390 glyph_space,
11391 content_offset.into(),
11392 scroll_position,
11393 show_thumb,
11394 axis,
11395 )
11396 }
11397
11398 fn for_minimap(
11399 minimap_track_hitbox: Hitbox,
11400 visible_lines: f64,
11401 total_editor_lines: f64,
11402 minimap_line_height: Pixels,
11403 scroll_position: ScrollOffset,
11404 minimap_scroll_top: ScrollOffset,
11405 show_thumb: bool,
11406 ) -> Self {
11407 // The scrollbar thumb size is calculated as
11408 // (visible_content/total_content) Γ scrollbar_track_length.
11409 //
11410 // For the minimap's thumb layout, we leverage this by setting the
11411 // scrollbar track length to the entire document size (using minimap line
11412 // height). This creates a thumb that exactly represents the editor
11413 // viewport scaled to minimap proportions.
11414 //
11415 // We adjust the thumb position relative to `minimap_scroll_top` to
11416 // accommodate for the deliberately oversized track.
11417 //
11418 // This approach ensures that the minimap thumb accurately reflects the
11419 // editor's current scroll position whilst nicely synchronizing the minimap
11420 // thumb and scrollbar thumb.
11421 let scroll_range = total_editor_lines * f64::from(minimap_line_height);
11422 let viewport_size = visible_lines * f64::from(minimap_line_height);
11423
11424 let track_top_offset = -minimap_scroll_top * f64::from(minimap_line_height);
11425
11426 Self::new_with_hitbox_and_track_length(
11427 minimap_track_hitbox,
11428 Pixels::from(scroll_range),
11429 Pixels::from(viewport_size),
11430 scroll_range,
11431 minimap_line_height,
11432 track_top_offset,
11433 scroll_position,
11434 show_thumb,
11435 ScrollbarAxis::Vertical,
11436 )
11437 }
11438
11439 fn new_with_hitbox_and_track_length(
11440 scrollbar_track_hitbox: Hitbox,
11441 track_length: Pixels,
11442 viewport_size: Pixels,
11443 scroll_range: f64,
11444 glyph_space: Pixels,
11445 content_offset: ScrollOffset,
11446 scroll_position: ScrollOffset,
11447 show_thumb: bool,
11448 axis: ScrollbarAxis,
11449 ) -> Self {
11450 let text_units_per_page = viewport_size.to_f64() / glyph_space.to_f64();
11451 let visible_range = scroll_position..scroll_position + text_units_per_page;
11452 let total_text_units = scroll_range / glyph_space.to_f64();
11453
11454 let thumb_percentage = text_units_per_page / total_text_units;
11455 let thumb_size = Pixels::from(ScrollOffset::from(track_length) * thumb_percentage)
11456 .max(ScrollbarLayout::MIN_THUMB_SIZE)
11457 .min(track_length);
11458
11459 let text_unit_divisor = (total_text_units - text_units_per_page).max(0.);
11460
11461 let content_larger_than_viewport = text_unit_divisor > 0.;
11462
11463 let text_unit_size = if content_larger_than_viewport {
11464 Pixels::from(ScrollOffset::from(track_length - thumb_size) / text_unit_divisor)
11465 } else {
11466 glyph_space
11467 };
11468
11469 let thumb_bounds = (show_thumb && content_larger_than_viewport).then(|| {
11470 Self::thumb_bounds(
11471 &scrollbar_track_hitbox,
11472 content_offset,
11473 visible_range.start,
11474 text_unit_size,
11475 thumb_size,
11476 axis,
11477 )
11478 });
11479
11480 ScrollbarLayout {
11481 hitbox: scrollbar_track_hitbox,
11482 visible_range,
11483 text_unit_size,
11484 thumb_bounds,
11485 thumb_state: Default::default(),
11486 }
11487 }
11488
11489 fn with_thumb_state(self, thumb_state: Option<ScrollbarThumbState>) -> Self {
11490 if let Some(thumb_state) = thumb_state {
11491 Self {
11492 thumb_state,
11493 ..self
11494 }
11495 } else {
11496 self
11497 }
11498 }
11499
11500 fn thumb_bounds(
11501 scrollbar_track: &Hitbox,
11502 content_offset: f64,
11503 visible_range_start: f64,
11504 text_unit_size: Pixels,
11505 thumb_size: Pixels,
11506 axis: ScrollbarAxis,
11507 ) -> Bounds<Pixels> {
11508 let thumb_origin = scrollbar_track.origin.apply_along(axis, |origin| {
11509 origin
11510 + Pixels::from(
11511 content_offset + visible_range_start * ScrollOffset::from(text_unit_size),
11512 )
11513 });
11514 Bounds::new(
11515 thumb_origin,
11516 scrollbar_track.size.apply_along(axis, |_| thumb_size),
11517 )
11518 }
11519
11520 fn thumb_hovered(&self, position: &gpui::Point<Pixels>) -> bool {
11521 self.thumb_bounds
11522 .is_some_and(|bounds| bounds.contains(position))
11523 }
11524
11525 fn marker_quads_for_ranges(
11526 &self,
11527 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
11528 column: Option<usize>,
11529 ) -> Vec<PaintQuad> {
11530 struct MinMax {
11531 min: Pixels,
11532 max: Pixels,
11533 }
11534 let (x_range, height_limit) = if let Some(column) = column {
11535 let column_width = ((self.hitbox.size.width - Self::BORDER_WIDTH) / 3.0).floor();
11536 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
11537 let end = start + column_width;
11538 (
11539 Range { start, end },
11540 MinMax {
11541 min: Self::MIN_MARKER_HEIGHT,
11542 max: px(f32::MAX),
11543 },
11544 )
11545 } else {
11546 (
11547 Range {
11548 start: Self::BORDER_WIDTH,
11549 end: self.hitbox.size.width,
11550 },
11551 MinMax {
11552 min: Self::LINE_MARKER_HEIGHT,
11553 max: Self::LINE_MARKER_HEIGHT,
11554 },
11555 )
11556 };
11557
11558 let row_to_y = |row: DisplayRow| row.as_f64() as f32 * self.text_unit_size;
11559 let mut pixel_ranges = row_ranges
11560 .into_iter()
11561 .map(|range| {
11562 let start_y = row_to_y(range.start);
11563 let end_y = row_to_y(range.end)
11564 + self
11565 .text_unit_size
11566 .max(height_limit.min)
11567 .min(height_limit.max);
11568 ColoredRange {
11569 start: start_y,
11570 end: end_y,
11571 color: range.color,
11572 }
11573 })
11574 .peekable();
11575
11576 let mut quads = Vec::new();
11577 while let Some(mut pixel_range) = pixel_ranges.next() {
11578 while let Some(next_pixel_range) = pixel_ranges.peek() {
11579 if pixel_range.end >= next_pixel_range.start - px(1.0)
11580 && pixel_range.color == next_pixel_range.color
11581 {
11582 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
11583 pixel_ranges.next();
11584 } else {
11585 break;
11586 }
11587 }
11588
11589 let bounds = Bounds::from_corners(
11590 point(x_range.start, pixel_range.start),
11591 point(x_range.end, pixel_range.end),
11592 );
11593 quads.push(quad(
11594 bounds,
11595 Corners::default(),
11596 pixel_range.color,
11597 Edges::default(),
11598 Hsla::transparent_black(),
11599 BorderStyle::default(),
11600 ));
11601 }
11602
11603 quads
11604 }
11605}
11606
11607struct MinimapLayout {
11608 pub minimap: AnyElement,
11609 pub thumb_layout: ScrollbarLayout,
11610 pub minimap_scroll_top: ScrollOffset,
11611 pub minimap_line_height: Pixels,
11612 pub thumb_border_style: MinimapThumbBorder,
11613 pub max_scroll_top: ScrollOffset,
11614}
11615
11616impl MinimapLayout {
11617 /// The minimum width of the minimap in columns. If the minimap is smaller than this, it will be hidden.
11618 const MINIMAP_MIN_WIDTH_COLUMNS: f32 = 20.;
11619 /// The minimap width as a percentage of the editor width.
11620 const MINIMAP_WIDTH_PCT: f32 = 0.15;
11621 /// Calculates the scroll top offset the minimap editor has to have based on the
11622 /// current scroll progress.
11623 fn calculate_minimap_top_offset(
11624 document_lines: f64,
11625 visible_editor_lines: f64,
11626 visible_minimap_lines: f64,
11627 scroll_position: f64,
11628 ) -> ScrollOffset {
11629 let non_visible_document_lines = (document_lines - visible_editor_lines).max(0.);
11630 if non_visible_document_lines == 0. {
11631 0.
11632 } else {
11633 let scroll_percentage = (scroll_position / non_visible_document_lines).clamp(0., 1.);
11634 scroll_percentage * (document_lines - visible_minimap_lines).max(0.)
11635 }
11636 }
11637}
11638
11639struct CreaseTrailerLayout {
11640 element: AnyElement,
11641 bounds: Bounds<Pixels>,
11642}
11643
11644pub(crate) struct PositionMap {
11645 pub size: Size<Pixels>,
11646 pub line_height: Pixels,
11647 pub scroll_position: gpui::Point<ScrollOffset>,
11648 pub scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
11649 pub scroll_max: gpui::Point<ScrollOffset>,
11650 pub em_width: Pixels,
11651 pub em_advance: Pixels,
11652 pub visible_row_range: Range<DisplayRow>,
11653 pub line_layouts: Vec<LineWithInvisibles>,
11654 pub snapshot: EditorSnapshot,
11655 pub text_align: TextAlign,
11656 pub content_width: Pixels,
11657 pub text_hitbox: Hitbox,
11658 pub gutter_hitbox: Hitbox,
11659 pub inline_blame_bounds: Option<(Bounds<Pixels>, BufferId, BlameEntry)>,
11660 pub display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
11661 pub diff_hunk_control_bounds: Vec<(DisplayRow, Bounds<Pixels>)>,
11662}
11663
11664#[derive(Debug, Copy, Clone)]
11665pub struct PointForPosition {
11666 pub previous_valid: DisplayPoint,
11667 pub next_valid: DisplayPoint,
11668 pub exact_unclipped: DisplayPoint,
11669 pub column_overshoot_after_line_end: u32,
11670}
11671
11672impl PointForPosition {
11673 pub fn as_valid(&self) -> Option<DisplayPoint> {
11674 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
11675 Some(self.previous_valid)
11676 } else {
11677 None
11678 }
11679 }
11680
11681 pub fn intersects_selection(&self, selection: &Selection<DisplayPoint>) -> bool {
11682 let Some(valid_point) = self.as_valid() else {
11683 return false;
11684 };
11685 let range = selection.range();
11686
11687 let candidate_row = valid_point.row();
11688 let candidate_col = valid_point.column();
11689
11690 let start_row = range.start.row();
11691 let start_col = range.start.column();
11692 let end_row = range.end.row();
11693 let end_col = range.end.column();
11694
11695 if candidate_row < start_row || candidate_row > end_row {
11696 false
11697 } else if start_row == end_row {
11698 candidate_col >= start_col && candidate_col < end_col
11699 } else if candidate_row == start_row {
11700 candidate_col >= start_col
11701 } else if candidate_row == end_row {
11702 candidate_col < end_col
11703 } else {
11704 true
11705 }
11706 }
11707}
11708
11709impl PositionMap {
11710 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
11711 let text_bounds = self.text_hitbox.bounds;
11712 let scroll_position = self.snapshot.scroll_position();
11713 let position = position - text_bounds.origin;
11714 let y = position.y.max(px(0.)).min(self.size.height);
11715 let x = position.x + (scroll_position.x as f32 * self.em_advance);
11716 let row = ((y / self.line_height) as f64 + scroll_position.y) as u32;
11717
11718 let (column, x_overshoot_after_line_end) = if let Some(line) = self
11719 .line_layouts
11720 .get(row as usize - scroll_position.y as usize)
11721 {
11722 let alignment_offset = line.alignment_offset(self.text_align, self.content_width);
11723 let x_relative_to_text = x - alignment_offset;
11724 if let Some(ix) = line.index_for_x(x_relative_to_text) {
11725 (ix as u32, px(0.))
11726 } else {
11727 (line.len as u32, px(0.).max(x_relative_to_text - line.width))
11728 }
11729 } else {
11730 (0, x)
11731 };
11732
11733 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
11734 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
11735 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
11736
11737 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
11738 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
11739 PointForPosition {
11740 previous_valid,
11741 next_valid,
11742 exact_unclipped,
11743 column_overshoot_after_line_end,
11744 }
11745 }
11746}
11747
11748pub(crate) struct BlockLayout {
11749 pub(crate) id: BlockId,
11750 pub(crate) x_offset: Pixels,
11751 pub(crate) row: Option<DisplayRow>,
11752 pub(crate) element: AnyElement,
11753 pub(crate) available_space: Size<AvailableSpace>,
11754 pub(crate) style: BlockStyle,
11755 pub(crate) overlaps_gutter: bool,
11756 pub(crate) is_buffer_header: bool,
11757}
11758
11759pub fn layout_line(
11760 row: DisplayRow,
11761 snapshot: &EditorSnapshot,
11762 style: &EditorStyle,
11763 text_width: Pixels,
11764 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
11765 window: &mut Window,
11766 cx: &mut App,
11767) -> LineWithInvisibles {
11768 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
11769 LineWithInvisibles::from_chunks(
11770 chunks,
11771 style,
11772 MAX_LINE_LEN,
11773 1,
11774 &snapshot.mode,
11775 text_width,
11776 is_row_soft_wrapped,
11777 &[],
11778 window,
11779 cx,
11780 )
11781 .pop()
11782 .unwrap()
11783}
11784
11785#[derive(Debug)]
11786pub struct IndentGuideLayout {
11787 origin: gpui::Point<Pixels>,
11788 length: Pixels,
11789 single_indent_width: Pixels,
11790 depth: u32,
11791 active: bool,
11792 settings: IndentGuideSettings,
11793}
11794
11795pub struct CursorLayout {
11796 origin: gpui::Point<Pixels>,
11797 block_width: Pixels,
11798 line_height: Pixels,
11799 color: Hsla,
11800 shape: CursorShape,
11801 block_text: Option<ShapedLine>,
11802 cursor_name: Option<AnyElement>,
11803}
11804
11805#[derive(Debug)]
11806pub struct CursorName {
11807 string: SharedString,
11808 color: Hsla,
11809 is_top_row: bool,
11810}
11811
11812impl CursorLayout {
11813 pub fn new(
11814 origin: gpui::Point<Pixels>,
11815 block_width: Pixels,
11816 line_height: Pixels,
11817 color: Hsla,
11818 shape: CursorShape,
11819 block_text: Option<ShapedLine>,
11820 ) -> CursorLayout {
11821 CursorLayout {
11822 origin,
11823 block_width,
11824 line_height,
11825 color,
11826 shape,
11827 block_text,
11828 cursor_name: None,
11829 }
11830 }
11831
11832 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
11833 Bounds {
11834 origin: self.origin + origin,
11835 size: size(self.block_width, self.line_height),
11836 }
11837 }
11838
11839 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
11840 match self.shape {
11841 CursorShape::Bar => Bounds {
11842 origin: self.origin + origin,
11843 size: size(px(2.0), self.line_height),
11844 },
11845 CursorShape::Block | CursorShape::Hollow => Bounds {
11846 origin: self.origin + origin,
11847 size: size(self.block_width, self.line_height),
11848 },
11849 CursorShape::Underline => Bounds {
11850 origin: self.origin
11851 + origin
11852 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
11853 size: size(self.block_width, px(2.0)),
11854 },
11855 }
11856 }
11857
11858 pub fn layout(
11859 &mut self,
11860 origin: gpui::Point<Pixels>,
11861 cursor_name: Option<CursorName>,
11862 window: &mut Window,
11863 cx: &mut App,
11864 ) {
11865 if let Some(cursor_name) = cursor_name {
11866 let bounds = self.bounds(origin);
11867 let text_size = self.line_height / 1.5;
11868
11869 let name_origin = if cursor_name.is_top_row {
11870 point(bounds.right() - px(1.), bounds.top())
11871 } else {
11872 match self.shape {
11873 CursorShape::Bar => point(
11874 bounds.right() - px(2.),
11875 bounds.top() - text_size / 2. - px(1.),
11876 ),
11877 _ => point(
11878 bounds.right() - px(1.),
11879 bounds.top() - text_size / 2. - px(1.),
11880 ),
11881 }
11882 };
11883 let mut name_element = div()
11884 .bg(self.color)
11885 .text_size(text_size)
11886 .px_0p5()
11887 .line_height(text_size + px(2.))
11888 .text_color(cursor_name.color)
11889 .child(cursor_name.string)
11890 .into_any_element();
11891
11892 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
11893
11894 self.cursor_name = Some(name_element);
11895 }
11896 }
11897
11898 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
11899 let bounds = self.bounds(origin);
11900
11901 //Draw background or border quad
11902 let cursor = if matches!(self.shape, CursorShape::Hollow) {
11903 outline(bounds, self.color, BorderStyle::Solid)
11904 } else {
11905 fill(bounds, self.color)
11906 };
11907
11908 if let Some(name) = &mut self.cursor_name {
11909 name.paint(window, cx);
11910 }
11911
11912 window.paint_quad(cursor);
11913
11914 if let Some(block_text) = &self.block_text {
11915 block_text
11916 .paint(
11917 self.origin + origin,
11918 self.line_height,
11919 TextAlign::Left,
11920 None,
11921 window,
11922 cx,
11923 )
11924 .log_err();
11925 }
11926 }
11927
11928 pub fn shape(&self) -> CursorShape {
11929 self.shape
11930 }
11931}
11932
11933#[derive(Debug)]
11934pub struct HighlightedRange {
11935 pub start_y: Pixels,
11936 pub line_height: Pixels,
11937 pub lines: Vec<HighlightedRangeLine>,
11938 pub color: Hsla,
11939 pub corner_radius: Pixels,
11940}
11941
11942#[derive(Debug)]
11943pub struct HighlightedRangeLine {
11944 pub start_x: Pixels,
11945 pub end_x: Pixels,
11946}
11947
11948impl HighlightedRange {
11949 pub fn paint(&self, fill: bool, bounds: Bounds<Pixels>, window: &mut Window) {
11950 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
11951 self.paint_lines(self.start_y, &self.lines[0..1], fill, bounds, window);
11952 self.paint_lines(
11953 self.start_y + self.line_height,
11954 &self.lines[1..],
11955 fill,
11956 bounds,
11957 window,
11958 );
11959 } else {
11960 self.paint_lines(self.start_y, &self.lines, fill, bounds, window);
11961 }
11962 }
11963
11964 fn paint_lines(
11965 &self,
11966 start_y: Pixels,
11967 lines: &[HighlightedRangeLine],
11968 fill: bool,
11969 _bounds: Bounds<Pixels>,
11970 window: &mut Window,
11971 ) {
11972 if lines.is_empty() {
11973 return;
11974 }
11975
11976 let first_line = lines.first().unwrap();
11977 let last_line = lines.last().unwrap();
11978
11979 let first_top_left = point(first_line.start_x, start_y);
11980 let first_top_right = point(first_line.end_x, start_y);
11981
11982 let curve_height = point(Pixels::ZERO, self.corner_radius);
11983 let curve_width = |start_x: Pixels, end_x: Pixels| {
11984 let max = (end_x - start_x) / 2.;
11985 let width = if max < self.corner_radius {
11986 max
11987 } else {
11988 self.corner_radius
11989 };
11990
11991 point(width, Pixels::ZERO)
11992 };
11993
11994 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
11995 let mut builder = if fill {
11996 gpui::PathBuilder::fill()
11997 } else {
11998 gpui::PathBuilder::stroke(px(1.))
11999 };
12000 builder.move_to(first_top_right - top_curve_width);
12001 builder.curve_to(first_top_right + curve_height, first_top_right);
12002
12003 let mut iter = lines.iter().enumerate().peekable();
12004 while let Some((ix, line)) = iter.next() {
12005 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
12006
12007 if let Some((_, next_line)) = iter.peek() {
12008 let next_top_right = point(next_line.end_x, bottom_right.y);
12009
12010 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
12011 Ordering::Equal => {
12012 builder.line_to(bottom_right);
12013 }
12014 Ordering::Less => {
12015 let curve_width = curve_width(next_top_right.x, bottom_right.x);
12016 builder.line_to(bottom_right - curve_height);
12017 if self.corner_radius > Pixels::ZERO {
12018 builder.curve_to(bottom_right - curve_width, bottom_right);
12019 }
12020 builder.line_to(next_top_right + curve_width);
12021 if self.corner_radius > Pixels::ZERO {
12022 builder.curve_to(next_top_right + curve_height, next_top_right);
12023 }
12024 }
12025 Ordering::Greater => {
12026 let curve_width = curve_width(bottom_right.x, next_top_right.x);
12027 builder.line_to(bottom_right - curve_height);
12028 if self.corner_radius > Pixels::ZERO {
12029 builder.curve_to(bottom_right + curve_width, bottom_right);
12030 }
12031 builder.line_to(next_top_right - curve_width);
12032 if self.corner_radius > Pixels::ZERO {
12033 builder.curve_to(next_top_right + curve_height, next_top_right);
12034 }
12035 }
12036 }
12037 } else {
12038 let curve_width = curve_width(line.start_x, line.end_x);
12039 builder.line_to(bottom_right - curve_height);
12040 if self.corner_radius > Pixels::ZERO {
12041 builder.curve_to(bottom_right - curve_width, bottom_right);
12042 }
12043
12044 let bottom_left = point(line.start_x, bottom_right.y);
12045 builder.line_to(bottom_left + curve_width);
12046 if self.corner_radius > Pixels::ZERO {
12047 builder.curve_to(bottom_left - curve_height, bottom_left);
12048 }
12049 }
12050 }
12051
12052 if first_line.start_x > last_line.start_x {
12053 let curve_width = curve_width(last_line.start_x, first_line.start_x);
12054 let second_top_left = point(last_line.start_x, start_y + self.line_height);
12055 builder.line_to(second_top_left + curve_height);
12056 if self.corner_radius > Pixels::ZERO {
12057 builder.curve_to(second_top_left + curve_width, second_top_left);
12058 }
12059 let first_bottom_left = point(first_line.start_x, second_top_left.y);
12060 builder.line_to(first_bottom_left - curve_width);
12061 if self.corner_radius > Pixels::ZERO {
12062 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
12063 }
12064 }
12065
12066 builder.line_to(first_top_left + curve_height);
12067 if self.corner_radius > Pixels::ZERO {
12068 builder.curve_to(first_top_left + top_curve_width, first_top_left);
12069 }
12070 builder.line_to(first_top_right - top_curve_width);
12071
12072 if let Ok(path) = builder.build() {
12073 window.paint_path(path, self.color);
12074 }
12075 }
12076}
12077
12078pub(crate) struct StickyHeader {
12079 pub item: language::OutlineItem<Anchor>,
12080 pub sticky_row: DisplayRow,
12081 pub start_point: Point,
12082 pub offset: ScrollOffset,
12083}
12084
12085enum CursorPopoverType {
12086 CodeContextMenu,
12087 EditPrediction,
12088}
12089
12090pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
12091 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
12092}
12093
12094fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
12095 (delta.pow(1.2) / 300.0).into()
12096}
12097
12098pub fn register_action<T: Action>(
12099 editor: &Entity<Editor>,
12100 window: &mut Window,
12101 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
12102) {
12103 let editor = editor.clone();
12104 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
12105 let action = action.downcast_ref().unwrap();
12106 if phase == DispatchPhase::Bubble {
12107 editor.update(cx, |editor, cx| {
12108 listener(editor, action, window, cx);
12109 })
12110 }
12111 })
12112}
12113
12114fn compute_auto_height_layout(
12115 editor: &mut Editor,
12116 min_lines: usize,
12117 max_lines: Option<usize>,
12118 known_dimensions: Size<Option<Pixels>>,
12119 available_width: AvailableSpace,
12120 window: &mut Window,
12121 cx: &mut Context<Editor>,
12122) -> Option<Size<Pixels>> {
12123 let width = known_dimensions.width.or({
12124 if let AvailableSpace::Definite(available_width) = available_width {
12125 Some(available_width)
12126 } else {
12127 None
12128 }
12129 })?;
12130 if let Some(height) = known_dimensions.height {
12131 return Some(size(width, height));
12132 }
12133
12134 let style = editor.style.as_ref().unwrap();
12135 let font_id = window.text_system().resolve_font(&style.text.font());
12136 let font_size = style.text.font_size.to_pixels(window.rem_size());
12137 let line_height = style.text.line_height_in_pixels(window.rem_size());
12138 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
12139
12140 let mut snapshot = editor.snapshot(window, cx);
12141 let gutter_dimensions = snapshot.gutter_dimensions(font_id, font_size, style, window, cx);
12142
12143 editor.gutter_dimensions = gutter_dimensions;
12144 let text_width = width - gutter_dimensions.width;
12145 let overscroll = size(em_width, px(0.));
12146
12147 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
12148 if !matches!(editor.soft_wrap_mode(cx), SoftWrap::None)
12149 && editor.set_wrap_width(Some(editor_width), cx)
12150 {
12151 snapshot = editor.snapshot(window, cx);
12152 }
12153
12154 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
12155
12156 let min_height = line_height * min_lines as f32;
12157 let content_height = scroll_height.max(min_height);
12158
12159 let final_height = if let Some(max_lines) = max_lines {
12160 let max_height = line_height * max_lines as f32;
12161 content_height.min(max_height)
12162 } else {
12163 content_height
12164 };
12165
12166 Some(size(width, final_height))
12167}
12168
12169#[cfg(test)]
12170mod tests {
12171 use super::*;
12172 use crate::{
12173 Editor, MultiBuffer, SelectionEffects,
12174 display_map::{BlockPlacement, BlockProperties},
12175 editor_tests::{init_test, update_test_language_settings},
12176 };
12177 use gpui::{TestAppContext, VisualTestContext};
12178 use language::{Buffer, language_settings, tree_sitter_python};
12179 use log::info;
12180 use std::num::NonZeroU32;
12181 use util::test::sample_text;
12182
12183 #[gpui::test]
12184 async fn test_soft_wrap_editor_width_auto_height_editor(cx: &mut TestAppContext) {
12185 init_test(cx, |_| {});
12186 // Ensure wrap completes synchronously by giving block_with_timeout enough ticks
12187 cx.dispatcher.scheduler().set_timeout_ticks(1000..=1000);
12188
12189 let window = cx.add_window(|window, cx| {
12190 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
12191 let mut editor = Editor::new(
12192 EditorMode::AutoHeight {
12193 min_lines: 1,
12194 max_lines: None,
12195 },
12196 buffer,
12197 None,
12198 window,
12199 cx,
12200 );
12201 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12202 editor
12203 });
12204 let cx = &mut VisualTestContext::from_window(*window, cx);
12205 let editor = window.root(cx).unwrap();
12206 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12207
12208 for x in 1..=100 {
12209 let (_, state) = cx.draw(
12210 Default::default(),
12211 size(px(200. + 0.13 * x as f32), px(500.)),
12212 |_, _| EditorElement::new(&editor, style.clone()),
12213 );
12214
12215 assert!(
12216 state.position_map.scroll_max.x == 0.,
12217 "Soft wrapped editor should have no horizontal scrolling!"
12218 );
12219 }
12220 }
12221
12222 #[gpui::test]
12223 async fn test_soft_wrap_editor_width_full_editor(cx: &mut TestAppContext) {
12224 init_test(cx, |_| {});
12225 // Ensure wrap completes synchronously by giving block_with_timeout enough ticks
12226 cx.dispatcher.scheduler().set_timeout_ticks(1000..=1000);
12227
12228 let window = cx.add_window(|window, cx| {
12229 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
12230 let mut editor = Editor::new(EditorMode::full(), buffer, None, window, cx);
12231 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12232 editor
12233 });
12234 let cx = &mut VisualTestContext::from_window(*window, cx);
12235 let editor = window.root(cx).unwrap();
12236 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12237
12238 for x in 1..=100 {
12239 let (_, state) = cx.draw(
12240 Default::default(),
12241 size(px(200. + 0.13 * x as f32), px(500.)),
12242 |_, _| EditorElement::new(&editor, style.clone()),
12243 );
12244
12245 assert!(
12246 state.position_map.scroll_max.x == 0.,
12247 "Soft wrapped editor should have no horizontal scrolling!"
12248 );
12249 }
12250 }
12251
12252 #[gpui::test]
12253 fn test_layout_line_numbers(cx: &mut TestAppContext) {
12254 init_test(cx, |_| {});
12255 let window = cx.add_window(|window, cx| {
12256 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
12257 Editor::new(EditorMode::full(), buffer, None, window, cx)
12258 });
12259
12260 let editor = window.root(cx).unwrap();
12261 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12262 let line_height = window
12263 .update(cx, |_, window, _| {
12264 style.text.line_height_in_pixels(window.rem_size())
12265 })
12266 .unwrap();
12267 let element = EditorElement::new(&editor, style);
12268 let snapshot = window
12269 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
12270 .unwrap();
12271
12272 let layouts = cx
12273 .update_window(*window, |_, window, cx| {
12274 element.layout_line_numbers(
12275 None,
12276 GutterDimensions {
12277 left_padding: Pixels::ZERO,
12278 right_padding: Pixels::ZERO,
12279 width: px(30.0),
12280 margin: Pixels::ZERO,
12281 git_blame_entries_width: None,
12282 },
12283 line_height,
12284 gpui::Point::default(),
12285 DisplayRow(0)..DisplayRow(6),
12286 &(0..6)
12287 .map(|row| RowInfo {
12288 buffer_row: Some(row),
12289 ..Default::default()
12290 })
12291 .collect::<Vec<_>>(),
12292 &BTreeMap::default(),
12293 Some(DisplayRow(0)),
12294 &snapshot,
12295 window,
12296 cx,
12297 )
12298 })
12299 .unwrap();
12300 assert_eq!(layouts.len(), 6);
12301
12302 let relative_rows = window
12303 .update(cx, |editor, window, cx| {
12304 let snapshot = editor.snapshot(window, cx);
12305 snapshot.calculate_relative_line_numbers(
12306 &(DisplayRow(0)..DisplayRow(6)),
12307 DisplayRow(3),
12308 false,
12309 )
12310 })
12311 .unwrap();
12312 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12313 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12314 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12315 // current line has no relative number
12316 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12317 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12318 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12319
12320 // works if cursor is before screen
12321 let relative_rows = window
12322 .update(cx, |editor, window, cx| {
12323 let snapshot = editor.snapshot(window, cx);
12324 snapshot.calculate_relative_line_numbers(
12325 &(DisplayRow(3)..DisplayRow(6)),
12326 DisplayRow(1),
12327 false,
12328 )
12329 })
12330 .unwrap();
12331 assert_eq!(relative_rows.len(), 3);
12332 assert_eq!(relative_rows[&DisplayRow(3)], 2);
12333 assert_eq!(relative_rows[&DisplayRow(4)], 3);
12334 assert_eq!(relative_rows[&DisplayRow(5)], 4);
12335
12336 // works if cursor is after screen
12337 let relative_rows = window
12338 .update(cx, |editor, window, cx| {
12339 let snapshot = editor.snapshot(window, cx);
12340 snapshot.calculate_relative_line_numbers(
12341 &(DisplayRow(0)..DisplayRow(3)),
12342 DisplayRow(6),
12343 false,
12344 )
12345 })
12346 .unwrap();
12347 assert_eq!(relative_rows.len(), 3);
12348 assert_eq!(relative_rows[&DisplayRow(0)], 5);
12349 assert_eq!(relative_rows[&DisplayRow(1)], 4);
12350 assert_eq!(relative_rows[&DisplayRow(2)], 3);
12351
12352 const DELETED_LINE: u32 = 3;
12353 let layouts = cx
12354 .update_window(*window, |_, window, cx| {
12355 element.layout_line_numbers(
12356 None,
12357 GutterDimensions {
12358 left_padding: Pixels::ZERO,
12359 right_padding: Pixels::ZERO,
12360 width: px(30.0),
12361 margin: Pixels::ZERO,
12362 git_blame_entries_width: None,
12363 },
12364 line_height,
12365 gpui::Point::default(),
12366 DisplayRow(0)..DisplayRow(6),
12367 &(0..6)
12368 .map(|row| RowInfo {
12369 buffer_row: Some(row),
12370 diff_status: (row == DELETED_LINE).then(|| {
12371 DiffHunkStatus::deleted(
12372 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
12373 )
12374 }),
12375 ..Default::default()
12376 })
12377 .collect::<Vec<_>>(),
12378 &BTreeMap::default(),
12379 Some(DisplayRow(0)),
12380 &snapshot,
12381 window,
12382 cx,
12383 )
12384 })
12385 .unwrap();
12386 assert_eq!(layouts.len(), 5,);
12387 assert!(
12388 layouts.get(&MultiBufferRow(DELETED_LINE)).is_none(),
12389 "Deleted line should not have a line number"
12390 );
12391 }
12392
12393 #[gpui::test]
12394 async fn test_layout_line_numbers_with_folded_lines(cx: &mut TestAppContext) {
12395 init_test(cx, |_| {});
12396
12397 let python_lang = languages::language("python", tree_sitter_python::LANGUAGE.into());
12398
12399 let window = cx.add_window(|window, cx| {
12400 let buffer = cx.new(|cx| {
12401 Buffer::local(
12402 indoc::indoc! {"
12403 fn test() -> int {
12404 return 2;
12405 }
12406
12407 fn another_test() -> int {
12408 # This is a very peculiar method that is hard to grasp.
12409 return 4;
12410 }
12411 "},
12412 cx,
12413 )
12414 .with_language(python_lang, cx)
12415 });
12416
12417 let buffer = MultiBuffer::build_from_buffer(buffer, cx);
12418 Editor::new(EditorMode::full(), buffer, None, window, cx)
12419 });
12420
12421 let editor = window.root(cx).unwrap();
12422 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12423 let line_height = window
12424 .update(cx, |_, window, _| {
12425 style.text.line_height_in_pixels(window.rem_size())
12426 })
12427 .unwrap();
12428 let element = EditorElement::new(&editor, style);
12429 let snapshot = window
12430 .update(cx, |editor, window, cx| {
12431 editor.fold_at(MultiBufferRow(0), window, cx);
12432 editor.snapshot(window, cx)
12433 })
12434 .unwrap();
12435
12436 let layouts = cx
12437 .update_window(*window, |_, window, cx| {
12438 element.layout_line_numbers(
12439 None,
12440 GutterDimensions {
12441 left_padding: Pixels::ZERO,
12442 right_padding: Pixels::ZERO,
12443 width: px(30.0),
12444 margin: Pixels::ZERO,
12445 git_blame_entries_width: None,
12446 },
12447 line_height,
12448 gpui::Point::default(),
12449 DisplayRow(0)..DisplayRow(6),
12450 &(0..6)
12451 .map(|row| RowInfo {
12452 buffer_row: Some(row),
12453 ..Default::default()
12454 })
12455 .collect::<Vec<_>>(),
12456 &BTreeMap::default(),
12457 Some(DisplayRow(3)),
12458 &snapshot,
12459 window,
12460 cx,
12461 )
12462 })
12463 .unwrap();
12464 assert_eq!(layouts.len(), 6);
12465
12466 let relative_rows = window
12467 .update(cx, |editor, window, cx| {
12468 let snapshot = editor.snapshot(window, cx);
12469 snapshot.calculate_relative_line_numbers(
12470 &(DisplayRow(0)..DisplayRow(6)),
12471 DisplayRow(3),
12472 false,
12473 )
12474 })
12475 .unwrap();
12476 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12477 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12478 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12479 // current line has no relative number
12480 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12481 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12482 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12483 }
12484
12485 #[gpui::test]
12486 fn test_layout_line_numbers_wrapping(cx: &mut TestAppContext) {
12487 init_test(cx, |_| {});
12488 let window = cx.add_window(|window, cx| {
12489 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
12490 Editor::new(EditorMode::full(), buffer, None, window, cx)
12491 });
12492
12493 update_test_language_settings(cx, |s| {
12494 s.defaults.preferred_line_length = Some(5_u32);
12495 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
12496 });
12497
12498 let editor = window.root(cx).unwrap();
12499 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12500 let line_height = window
12501 .update(cx, |_, window, _| {
12502 style.text.line_height_in_pixels(window.rem_size())
12503 })
12504 .unwrap();
12505 let element = EditorElement::new(&editor, style);
12506 let snapshot = window
12507 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
12508 .unwrap();
12509
12510 let layouts = cx
12511 .update_window(*window, |_, window, cx| {
12512 element.layout_line_numbers(
12513 None,
12514 GutterDimensions {
12515 left_padding: Pixels::ZERO,
12516 right_padding: Pixels::ZERO,
12517 width: px(30.0),
12518 margin: Pixels::ZERO,
12519 git_blame_entries_width: None,
12520 },
12521 line_height,
12522 gpui::Point::default(),
12523 DisplayRow(0)..DisplayRow(6),
12524 &(0..6)
12525 .map(|row| RowInfo {
12526 buffer_row: Some(row),
12527 ..Default::default()
12528 })
12529 .collect::<Vec<_>>(),
12530 &BTreeMap::default(),
12531 Some(DisplayRow(0)),
12532 &snapshot,
12533 window,
12534 cx,
12535 )
12536 })
12537 .unwrap();
12538 assert_eq!(layouts.len(), 3);
12539
12540 let relative_rows = window
12541 .update(cx, |editor, window, cx| {
12542 let snapshot = editor.snapshot(window, cx);
12543 snapshot.calculate_relative_line_numbers(
12544 &(DisplayRow(0)..DisplayRow(6)),
12545 DisplayRow(3),
12546 true,
12547 )
12548 })
12549 .unwrap();
12550
12551 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12552 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12553 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12554 // current line has no relative number
12555 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12556 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12557 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12558
12559 let layouts = cx
12560 .update_window(*window, |_, window, cx| {
12561 element.layout_line_numbers(
12562 None,
12563 GutterDimensions {
12564 left_padding: Pixels::ZERO,
12565 right_padding: Pixels::ZERO,
12566 width: px(30.0),
12567 margin: Pixels::ZERO,
12568 git_blame_entries_width: None,
12569 },
12570 line_height,
12571 gpui::Point::default(),
12572 DisplayRow(0)..DisplayRow(6),
12573 &(0..6)
12574 .map(|row| RowInfo {
12575 buffer_row: Some(row),
12576 diff_status: Some(DiffHunkStatus::deleted(
12577 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
12578 )),
12579 ..Default::default()
12580 })
12581 .collect::<Vec<_>>(),
12582 &BTreeMap::from_iter([(DisplayRow(0), LineHighlightSpec::default())]),
12583 Some(DisplayRow(0)),
12584 &snapshot,
12585 window,
12586 cx,
12587 )
12588 })
12589 .unwrap();
12590 assert!(
12591 layouts.is_empty(),
12592 "Deleted lines should have no line number"
12593 );
12594
12595 let relative_rows = window
12596 .update(cx, |editor, window, cx| {
12597 let snapshot = editor.snapshot(window, cx);
12598 snapshot.calculate_relative_line_numbers(
12599 &(DisplayRow(0)..DisplayRow(6)),
12600 DisplayRow(3),
12601 true,
12602 )
12603 })
12604 .unwrap();
12605
12606 // Deleted lines should still have relative numbers
12607 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12608 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12609 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12610 // current line, even if deleted, has no relative number
12611 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12612 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12613 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12614 }
12615
12616 #[gpui::test]
12617 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
12618 init_test(cx, |_| {});
12619
12620 let window = cx.add_window(|window, cx| {
12621 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
12622 Editor::new(EditorMode::full(), buffer, None, window, cx)
12623 });
12624 let cx = &mut VisualTestContext::from_window(*window, cx);
12625 let editor = window.root(cx).unwrap();
12626 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12627
12628 window
12629 .update(cx, |editor, window, cx| {
12630 editor.cursor_offset_on_selection = true;
12631 editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
12632 s.select_ranges([
12633 Point::new(0, 0)..Point::new(1, 0),
12634 Point::new(3, 2)..Point::new(3, 3),
12635 Point::new(5, 6)..Point::new(6, 0),
12636 ]);
12637 });
12638 })
12639 .unwrap();
12640
12641 let (_, state) = cx.draw(
12642 point(px(500.), px(500.)),
12643 size(px(500.), px(500.)),
12644 |_, _| EditorElement::new(&editor, style),
12645 );
12646
12647 assert_eq!(state.selections.len(), 1);
12648 let local_selections = &state.selections[0].1;
12649 assert_eq!(local_selections.len(), 3);
12650 // moves cursor back one line
12651 assert_eq!(
12652 local_selections[0].head,
12653 DisplayPoint::new(DisplayRow(0), 6)
12654 );
12655 assert_eq!(
12656 local_selections[0].range,
12657 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
12658 );
12659
12660 // moves cursor back one column
12661 assert_eq!(
12662 local_selections[1].range,
12663 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
12664 );
12665 assert_eq!(
12666 local_selections[1].head,
12667 DisplayPoint::new(DisplayRow(3), 2)
12668 );
12669
12670 // leaves cursor on the max point
12671 assert_eq!(
12672 local_selections[2].range,
12673 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
12674 );
12675 assert_eq!(
12676 local_selections[2].head,
12677 DisplayPoint::new(DisplayRow(6), 0)
12678 );
12679
12680 // active lines does not include 1 (even though the range of the selection does)
12681 assert_eq!(
12682 state.active_rows.keys().cloned().collect::<Vec<_>>(),
12683 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
12684 );
12685 }
12686
12687 #[gpui::test]
12688 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
12689 init_test(cx, |_| {});
12690
12691 let window = cx.add_window(|window, cx| {
12692 let buffer = MultiBuffer::build_simple("", cx);
12693 Editor::new(EditorMode::full(), buffer, None, window, cx)
12694 });
12695 let cx = &mut VisualTestContext::from_window(*window, cx);
12696 let editor = window.root(cx).unwrap();
12697 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12698 window
12699 .update(cx, |editor, window, cx| {
12700 editor.set_placeholder_text("hello", window, cx);
12701 editor.insert_blocks(
12702 [BlockProperties {
12703 style: BlockStyle::Fixed,
12704 placement: BlockPlacement::Above(Anchor::min()),
12705 height: Some(3),
12706 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
12707 priority: 0,
12708 }],
12709 None,
12710 cx,
12711 );
12712
12713 // Blur the editor so that it displays placeholder text.
12714 window.blur();
12715 })
12716 .unwrap();
12717
12718 let (_, state) = cx.draw(
12719 point(px(500.), px(500.)),
12720 size(px(500.), px(500.)),
12721 |_, _| EditorElement::new(&editor, style),
12722 );
12723 assert_eq!(state.position_map.line_layouts.len(), 4);
12724 assert_eq!(state.line_numbers.len(), 1);
12725 assert_eq!(
12726 state
12727 .line_numbers
12728 .get(&MultiBufferRow(0))
12729 .map(|line_number| line_number
12730 .segments
12731 .first()
12732 .unwrap()
12733 .shaped_line
12734 .text
12735 .as_ref()),
12736 Some("1")
12737 );
12738 }
12739
12740 #[gpui::test]
12741 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
12742 const TAB_SIZE: u32 = 4;
12743
12744 let input_text = "\t \t|\t| a b";
12745 let expected_invisibles = vec![
12746 Invisible::Tab {
12747 line_start_offset: 0,
12748 line_end_offset: TAB_SIZE as usize,
12749 },
12750 Invisible::Whitespace {
12751 line_offset: TAB_SIZE as usize,
12752 },
12753 Invisible::Tab {
12754 line_start_offset: TAB_SIZE as usize + 1,
12755 line_end_offset: TAB_SIZE as usize * 2,
12756 },
12757 Invisible::Tab {
12758 line_start_offset: TAB_SIZE as usize * 2 + 1,
12759 line_end_offset: TAB_SIZE as usize * 3,
12760 },
12761 Invisible::Whitespace {
12762 line_offset: TAB_SIZE as usize * 3 + 1,
12763 },
12764 Invisible::Whitespace {
12765 line_offset: TAB_SIZE as usize * 3 + 3,
12766 },
12767 ];
12768 assert_eq!(
12769 expected_invisibles.len(),
12770 input_text
12771 .chars()
12772 .filter(|initial_char| initial_char.is_whitespace())
12773 .count(),
12774 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
12775 );
12776
12777 for show_line_numbers in [true, false] {
12778 init_test(cx, |s| {
12779 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12780 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
12781 });
12782
12783 let actual_invisibles = collect_invisibles_from_new_editor(
12784 cx,
12785 EditorMode::full(),
12786 input_text,
12787 px(500.0),
12788 show_line_numbers,
12789 );
12790
12791 assert_eq!(expected_invisibles, actual_invisibles);
12792 }
12793 }
12794
12795 #[gpui::test]
12796 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
12797 init_test(cx, |s| {
12798 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12799 s.defaults.tab_size = NonZeroU32::new(4);
12800 });
12801
12802 for editor_mode_without_invisibles in [
12803 EditorMode::SingleLine,
12804 EditorMode::AutoHeight {
12805 min_lines: 1,
12806 max_lines: Some(100),
12807 },
12808 ] {
12809 for show_line_numbers in [true, false] {
12810 let invisibles = collect_invisibles_from_new_editor(
12811 cx,
12812 editor_mode_without_invisibles.clone(),
12813 "\t\t\t| | a b",
12814 px(500.0),
12815 show_line_numbers,
12816 );
12817 assert!(
12818 invisibles.is_empty(),
12819 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
12820 );
12821 }
12822 }
12823 }
12824
12825 #[gpui::test]
12826 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
12827 let tab_size = 4;
12828 let input_text = "a\tbcd ".repeat(9);
12829 let repeated_invisibles = [
12830 Invisible::Tab {
12831 line_start_offset: 1,
12832 line_end_offset: tab_size as usize,
12833 },
12834 Invisible::Whitespace {
12835 line_offset: tab_size as usize + 3,
12836 },
12837 Invisible::Whitespace {
12838 line_offset: tab_size as usize + 4,
12839 },
12840 Invisible::Whitespace {
12841 line_offset: tab_size as usize + 5,
12842 },
12843 Invisible::Whitespace {
12844 line_offset: tab_size as usize + 6,
12845 },
12846 Invisible::Whitespace {
12847 line_offset: tab_size as usize + 7,
12848 },
12849 ];
12850 let expected_invisibles = std::iter::once(repeated_invisibles)
12851 .cycle()
12852 .take(9)
12853 .flatten()
12854 .collect::<Vec<_>>();
12855 assert_eq!(
12856 expected_invisibles.len(),
12857 input_text
12858 .chars()
12859 .filter(|initial_char| initial_char.is_whitespace())
12860 .count(),
12861 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
12862 );
12863 info!("Expected invisibles: {expected_invisibles:?}");
12864
12865 init_test(cx, |_| {});
12866
12867 // Put the same string with repeating whitespace pattern into editors of various size,
12868 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
12869 let resize_step = 10.0;
12870 let mut editor_width = 200.0;
12871 while editor_width <= 1000.0 {
12872 for show_line_numbers in [true, false] {
12873 update_test_language_settings(cx, |s| {
12874 s.defaults.tab_size = NonZeroU32::new(tab_size);
12875 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12876 s.defaults.preferred_line_length = Some(editor_width as u32);
12877 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
12878 });
12879
12880 let actual_invisibles = collect_invisibles_from_new_editor(
12881 cx,
12882 EditorMode::full(),
12883 &input_text,
12884 px(editor_width),
12885 show_line_numbers,
12886 );
12887
12888 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
12889 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
12890 let mut i = 0;
12891 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
12892 i = actual_index;
12893 match expected_invisibles.get(i) {
12894 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
12895 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
12896 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
12897 _ => {
12898 panic!(
12899 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
12900 )
12901 }
12902 },
12903 None => {
12904 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
12905 }
12906 }
12907 }
12908 let missing_expected_invisibles = &expected_invisibles[i + 1..];
12909 assert!(
12910 missing_expected_invisibles.is_empty(),
12911 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
12912 );
12913
12914 editor_width += resize_step;
12915 }
12916 }
12917 }
12918
12919 fn collect_invisibles_from_new_editor(
12920 cx: &mut TestAppContext,
12921 editor_mode: EditorMode,
12922 input_text: &str,
12923 editor_width: Pixels,
12924 show_line_numbers: bool,
12925 ) -> Vec<Invisible> {
12926 info!(
12927 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
12928 f32::from(editor_width)
12929 );
12930 let window = cx.add_window(|window, cx| {
12931 let buffer = MultiBuffer::build_simple(input_text, cx);
12932 Editor::new(editor_mode, buffer, None, window, cx)
12933 });
12934 let cx = &mut VisualTestContext::from_window(*window, cx);
12935 let editor = window.root(cx).unwrap();
12936
12937 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12938 window
12939 .update(cx, |editor, _, cx| {
12940 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12941 editor.set_wrap_width(Some(editor_width), cx);
12942 editor.set_show_line_numbers(show_line_numbers, cx);
12943 })
12944 .unwrap();
12945 let (_, state) = cx.draw(
12946 point(px(500.), px(500.)),
12947 size(px(500.), px(500.)),
12948 |_, _| EditorElement::new(&editor, style),
12949 );
12950 state
12951 .position_map
12952 .line_layouts
12953 .iter()
12954 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
12955 .cloned()
12956 .collect()
12957 }
12958
12959 #[gpui::test]
12960 fn test_merge_overlapping_ranges() {
12961 let base_bg = Hsla::white();
12962 let color1 = Hsla {
12963 h: 0.0,
12964 s: 0.5,
12965 l: 0.5,
12966 a: 0.5,
12967 };
12968 let color2 = Hsla {
12969 h: 120.0,
12970 s: 0.5,
12971 l: 0.5,
12972 a: 0.5,
12973 };
12974
12975 let display_point = |col| DisplayPoint::new(DisplayRow(0), col);
12976 let cols = |v: &Vec<(Range<DisplayPoint>, Hsla)>| -> Vec<(u32, u32)> {
12977 v.iter()
12978 .map(|(r, _)| (r.start.column(), r.end.column()))
12979 .collect()
12980 };
12981
12982 // Test overlapping ranges blend colors
12983 let overlapping = vec![
12984 (display_point(5)..display_point(15), color1),
12985 (display_point(10)..display_point(20), color2),
12986 ];
12987 let result = EditorElement::merge_overlapping_ranges(overlapping, base_bg);
12988 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
12989
12990 // Test middle segment should have blended color
12991 let blended = Hsla::blend(Hsla::blend(base_bg, color1), color2);
12992 assert_eq!(result[1].1, blended);
12993
12994 // Test adjacent same-color ranges merge
12995 let adjacent_same = vec![
12996 (display_point(5)..display_point(10), color1),
12997 (display_point(10)..display_point(15), color1),
12998 ];
12999 let result = EditorElement::merge_overlapping_ranges(adjacent_same, base_bg);
13000 assert_eq!(cols(&result), vec![(5, 15)]);
13001
13002 // Test contained range splits
13003 let contained = vec![
13004 (display_point(5)..display_point(20), color1),
13005 (display_point(10)..display_point(15), color2),
13006 ];
13007 let result = EditorElement::merge_overlapping_ranges(contained, base_bg);
13008 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
13009
13010 // Test multiple overlaps split at every boundary
13011 let color3 = Hsla {
13012 h: 240.0,
13013 s: 0.5,
13014 l: 0.5,
13015 a: 0.5,
13016 };
13017 let complex = vec![
13018 (display_point(5)..display_point(12), color1),
13019 (display_point(8)..display_point(16), color2),
13020 (display_point(10)..display_point(14), color3),
13021 ];
13022 let result = EditorElement::merge_overlapping_ranges(complex, base_bg);
13023 assert_eq!(
13024 cols(&result),
13025 vec![(5, 8), (8, 10), (10, 12), (12, 14), (14, 16)]
13026 );
13027 }
13028
13029 #[gpui::test]
13030 fn test_bg_segments_per_row() {
13031 let base_bg = Hsla::white();
13032
13033 // Case A: selection spans three display rows: row 1 [5, end), full row 2, row 3 [0, 7)
13034 {
13035 let selection_color = Hsla {
13036 h: 200.0,
13037 s: 0.5,
13038 l: 0.5,
13039 a: 0.5,
13040 };
13041 let player_color = PlayerColor {
13042 cursor: selection_color,
13043 background: selection_color,
13044 selection: selection_color,
13045 };
13046
13047 let spanning_selection = SelectionLayout {
13048 head: DisplayPoint::new(DisplayRow(3), 7),
13049 cursor_shape: CursorShape::Bar,
13050 is_newest: true,
13051 is_local: true,
13052 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 7),
13053 active_rows: DisplayRow(1)..DisplayRow(4),
13054 user_name: None,
13055 };
13056
13057 let selections = vec![(player_color, vec![spanning_selection])];
13058 let result = EditorElement::bg_segments_per_row(
13059 DisplayRow(0)..DisplayRow(5),
13060 &selections,
13061 &[],
13062 base_bg,
13063 );
13064
13065 assert_eq!(result.len(), 5);
13066 assert!(result[0].is_empty());
13067 assert_eq!(result[1].len(), 1);
13068 assert_eq!(result[2].len(), 1);
13069 assert_eq!(result[3].len(), 1);
13070 assert!(result[4].is_empty());
13071
13072 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
13073 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
13074 assert_eq!(result[1][0].0.end.column(), u32::MAX);
13075 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
13076 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
13077 assert_eq!(result[2][0].0.end.column(), u32::MAX);
13078 assert_eq!(result[3][0].0.start, DisplayPoint::new(DisplayRow(3), 0));
13079 assert_eq!(result[3][0].0.end, DisplayPoint::new(DisplayRow(3), 7));
13080 }
13081
13082 // Case B: selection ends exactly at the start of row 3, excluding row 3
13083 {
13084 let selection_color = Hsla {
13085 h: 120.0,
13086 s: 0.5,
13087 l: 0.5,
13088 a: 0.5,
13089 };
13090 let player_color = PlayerColor {
13091 cursor: selection_color,
13092 background: selection_color,
13093 selection: selection_color,
13094 };
13095
13096 let selection = SelectionLayout {
13097 head: DisplayPoint::new(DisplayRow(2), 0),
13098 cursor_shape: CursorShape::Bar,
13099 is_newest: true,
13100 is_local: true,
13101 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 0),
13102 active_rows: DisplayRow(1)..DisplayRow(3),
13103 user_name: None,
13104 };
13105
13106 let selections = vec![(player_color, vec![selection])];
13107 let result = EditorElement::bg_segments_per_row(
13108 DisplayRow(0)..DisplayRow(4),
13109 &selections,
13110 &[],
13111 base_bg,
13112 );
13113
13114 assert_eq!(result.len(), 4);
13115 assert!(result[0].is_empty());
13116 assert_eq!(result[1].len(), 1);
13117 assert_eq!(result[2].len(), 1);
13118 assert!(result[3].is_empty());
13119
13120 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
13121 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
13122 assert_eq!(result[1][0].0.end.column(), u32::MAX);
13123 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
13124 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
13125 assert_eq!(result[2][0].0.end.column(), u32::MAX);
13126 }
13127 }
13128
13129 #[cfg(test)]
13130 fn generate_test_run(len: usize, color: Hsla) -> TextRun {
13131 TextRun {
13132 len,
13133 color,
13134 ..Default::default()
13135 }
13136 }
13137
13138 #[gpui::test]
13139 fn test_split_runs_by_bg_segments(cx: &mut gpui::TestAppContext) {
13140 init_test(cx, |_| {});
13141
13142 let dx = |start: u32, end: u32| {
13143 DisplayPoint::new(DisplayRow(0), start)..DisplayPoint::new(DisplayRow(0), end)
13144 };
13145
13146 let text_color = Hsla {
13147 h: 210.0,
13148 s: 0.1,
13149 l: 0.4,
13150 a: 1.0,
13151 };
13152 let bg_1 = Hsla {
13153 h: 30.0,
13154 s: 0.6,
13155 l: 0.8,
13156 a: 1.0,
13157 };
13158 let bg_2 = Hsla {
13159 h: 200.0,
13160 s: 0.6,
13161 l: 0.2,
13162 a: 1.0,
13163 };
13164 let min_contrast = 45.0;
13165 let adjusted_bg1 = ensure_minimum_contrast(text_color, bg_1, min_contrast);
13166 let adjusted_bg2 = ensure_minimum_contrast(text_color, bg_2, min_contrast);
13167
13168 // Case A: single run; disjoint segments inside the run
13169 {
13170 let runs = vec![generate_test_run(20, text_color)];
13171 let segs = vec![(dx(5, 10), bg_1), (dx(12, 16), bg_2)];
13172 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13173 // Expected slices: [0,5) [5,10) [10,12) [12,16) [16,20)
13174 assert_eq!(
13175 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13176 vec![5, 5, 2, 4, 4]
13177 );
13178 assert_eq!(out[0].color, text_color);
13179 assert_eq!(out[1].color, adjusted_bg1);
13180 assert_eq!(out[2].color, text_color);
13181 assert_eq!(out[3].color, adjusted_bg2);
13182 assert_eq!(out[4].color, text_color);
13183 }
13184
13185 // Case B: multiple runs; segment extends to end of line (u32::MAX)
13186 {
13187 let runs = vec![
13188 generate_test_run(8, text_color),
13189 generate_test_run(7, text_color),
13190 ];
13191 let segs = vec![(dx(6, u32::MAX), bg_1)];
13192 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13193 // Expected slices across runs: [0,6) [6,8) | [0,7)
13194 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![6, 2, 7]);
13195 assert_eq!(out[0].color, text_color);
13196 assert_eq!(out[1].color, adjusted_bg1);
13197 assert_eq!(out[2].color, adjusted_bg1);
13198 }
13199
13200 // Case C: multi-byte characters
13201 {
13202 // for text: "Hello π δΈη!"
13203 let runs = vec![
13204 generate_test_run(5, text_color), // "Hello"
13205 generate_test_run(6, text_color), // " π "
13206 generate_test_run(6, text_color), // "δΈη"
13207 generate_test_run(1, text_color), // "!"
13208 ];
13209 // selecting "π δΈ"
13210 let segs = vec![(dx(6, 14), bg_1)];
13211 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13212 // "Hello" | " " | "π " | "δΈ" | "η" | "!"
13213 assert_eq!(
13214 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13215 vec![5, 1, 5, 3, 3, 1]
13216 );
13217 assert_eq!(out[0].color, text_color); // "Hello"
13218 assert_eq!(out[2].color, adjusted_bg1); // "π "
13219 assert_eq!(out[3].color, adjusted_bg1); // "δΈ"
13220 assert_eq!(out[4].color, text_color); // "η"
13221 assert_eq!(out[5].color, text_color); // "!"
13222 }
13223
13224 // Case D: split multiple consecutive text runs with segments
13225 {
13226 let segs = vec![
13227 (dx(2, 4), bg_1), // selecting "cd"
13228 (dx(4, 8), bg_2), // selecting "efgh"
13229 (dx(9, 11), bg_1), // selecting "jk"
13230 (dx(12, 16), bg_2), // selecting "mnop"
13231 (dx(18, 19), bg_1), // selecting "s"
13232 ];
13233
13234 // for text: "abcdef"
13235 let runs = vec![
13236 generate_test_run(2, text_color), // ab
13237 generate_test_run(4, text_color), // cdef
13238 ];
13239 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13240 // new splits "ab", "cd", "ef"
13241 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![2, 2, 2]);
13242 assert_eq!(out[0].color, text_color);
13243 assert_eq!(out[1].color, adjusted_bg1);
13244 assert_eq!(out[2].color, adjusted_bg2);
13245
13246 // for text: "ghijklmn"
13247 let runs = vec![
13248 generate_test_run(3, text_color), // ghi
13249 generate_test_run(2, text_color), // jk
13250 generate_test_run(3, text_color), // lmn
13251 ];
13252 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 6); // 2 + 4 from first run
13253 // new splits "gh", "i", "jk", "l", "mn"
13254 assert_eq!(
13255 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13256 vec![2, 1, 2, 1, 2]
13257 );
13258 assert_eq!(out[0].color, adjusted_bg2);
13259 assert_eq!(out[1].color, text_color);
13260 assert_eq!(out[2].color, adjusted_bg1);
13261 assert_eq!(out[3].color, text_color);
13262 assert_eq!(out[4].color, adjusted_bg2);
13263
13264 // for text: "opqrs"
13265 let runs = vec![
13266 generate_test_run(1, text_color), // o
13267 generate_test_run(4, text_color), // pqrs
13268 ];
13269 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 14); // 6 + 3 + 2 + 3 from first two runs
13270 // new splits "o", "p", "qr", "s"
13271 assert_eq!(
13272 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13273 vec![1, 1, 2, 1]
13274 );
13275 assert_eq!(out[0].color, adjusted_bg2);
13276 assert_eq!(out[1].color, adjusted_bg2);
13277 assert_eq!(out[2].color, text_color);
13278 assert_eq!(out[3].color, adjusted_bg1);
13279 }
13280 }
13281}