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 render_buffer_header(
4096 &self.editor,
4097 for_excerpt,
4098 is_folded,
4099 is_selected,
4100 is_sticky,
4101 jump_data,
4102 window,
4103 cx,
4104 )
4105 }
4106
4107 fn render_blocks(
4108 &self,
4109 rows: Range<DisplayRow>,
4110 snapshot: &EditorSnapshot,
4111 hitbox: &Hitbox,
4112 text_hitbox: &Hitbox,
4113 editor_width: Pixels,
4114 scroll_width: &mut Pixels,
4115 editor_margins: &EditorMargins,
4116 em_width: Pixels,
4117 text_x: Pixels,
4118 line_height: Pixels,
4119 line_layouts: &mut [LineWithInvisibles],
4120 selections: &[Selection<Point>],
4121 selected_buffer_ids: &Vec<BufferId>,
4122 latest_selection_anchors: &HashMap<BufferId, Anchor>,
4123 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4124 sticky_header_excerpt_id: Option<ExcerptId>,
4125 window: &mut Window,
4126 cx: &mut App,
4127 ) -> RenderBlocksOutput {
4128 let (fixed_blocks, non_fixed_blocks) = snapshot
4129 .blocks_in_range(rows.clone())
4130 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
4131
4132 let mut focused_block = self
4133 .editor
4134 .update(cx, |editor, _| editor.take_focused_block());
4135 let mut fixed_block_max_width = Pixels::ZERO;
4136 let mut blocks = Vec::new();
4137 let mut resized_blocks = HashMap::default();
4138 let mut row_block_types = HashMap::default();
4139 let mut block_resize_offset: i32 = 0;
4140
4141 for (row, block) in fixed_blocks {
4142 let block_id = block.id();
4143
4144 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4145 focused_block = None;
4146 }
4147
4148 if let Some((element, element_size, row, x_offset)) = self.render_block(
4149 block,
4150 AvailableSpace::MinContent,
4151 block_id,
4152 row,
4153 snapshot,
4154 text_x,
4155 &rows,
4156 line_layouts,
4157 editor_margins,
4158 line_height,
4159 em_width,
4160 text_hitbox,
4161 editor_width,
4162 scroll_width,
4163 &mut resized_blocks,
4164 &mut row_block_types,
4165 selections,
4166 selected_buffer_ids,
4167 latest_selection_anchors,
4168 is_row_soft_wrapped,
4169 sticky_header_excerpt_id,
4170 &mut block_resize_offset,
4171 window,
4172 cx,
4173 ) {
4174 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
4175 blocks.push(BlockLayout {
4176 id: block_id,
4177 x_offset,
4178 row: Some(row),
4179 element,
4180 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
4181 style: BlockStyle::Fixed,
4182 overlaps_gutter: true,
4183 is_buffer_header: block.is_buffer_header(),
4184 });
4185 }
4186 }
4187
4188 for (row, block) in non_fixed_blocks {
4189 let style = block.style();
4190 let width = match (style, block.place_near()) {
4191 (_, true) => AvailableSpace::MinContent,
4192 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
4193 (BlockStyle::Flex, _) => hitbox
4194 .size
4195 .width
4196 .max(fixed_block_max_width)
4197 .max(editor_margins.gutter.width + *scroll_width)
4198 .into(),
4199 (BlockStyle::Fixed, _) => unreachable!(),
4200 };
4201 let block_id = block.id();
4202
4203 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4204 focused_block = None;
4205 }
4206
4207 if let Some((element, element_size, row, x_offset)) = self.render_block(
4208 block,
4209 width,
4210 block_id,
4211 row,
4212 snapshot,
4213 text_x,
4214 &rows,
4215 line_layouts,
4216 editor_margins,
4217 line_height,
4218 em_width,
4219 text_hitbox,
4220 editor_width,
4221 scroll_width,
4222 &mut resized_blocks,
4223 &mut row_block_types,
4224 selections,
4225 selected_buffer_ids,
4226 latest_selection_anchors,
4227 is_row_soft_wrapped,
4228 sticky_header_excerpt_id,
4229 &mut block_resize_offset,
4230 window,
4231 cx,
4232 ) {
4233 blocks.push(BlockLayout {
4234 id: block_id,
4235 x_offset,
4236 row: Some(row),
4237 element,
4238 available_space: size(width, element_size.height.into()),
4239 style,
4240 overlaps_gutter: !block.place_near(),
4241 is_buffer_header: block.is_buffer_header(),
4242 });
4243 }
4244 }
4245
4246 if let Some(focused_block) = focused_block
4247 && let Some(focus_handle) = focused_block.focus_handle.upgrade()
4248 && focus_handle.is_focused(window)
4249 && let Some(block) = snapshot.block_for_id(focused_block.id)
4250 {
4251 let style = block.style();
4252 let width = match style {
4253 BlockStyle::Fixed => AvailableSpace::MinContent,
4254 BlockStyle::Flex => AvailableSpace::Definite(
4255 hitbox
4256 .size
4257 .width
4258 .max(fixed_block_max_width)
4259 .max(editor_margins.gutter.width + *scroll_width),
4260 ),
4261 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
4262 };
4263
4264 if let Some((element, element_size, _, x_offset)) = self.render_block(
4265 &block,
4266 width,
4267 focused_block.id,
4268 rows.end,
4269 snapshot,
4270 text_x,
4271 &rows,
4272 line_layouts,
4273 editor_margins,
4274 line_height,
4275 em_width,
4276 text_hitbox,
4277 editor_width,
4278 scroll_width,
4279 &mut resized_blocks,
4280 &mut row_block_types,
4281 selections,
4282 selected_buffer_ids,
4283 latest_selection_anchors,
4284 is_row_soft_wrapped,
4285 sticky_header_excerpt_id,
4286 &mut block_resize_offset,
4287 window,
4288 cx,
4289 ) {
4290 blocks.push(BlockLayout {
4291 id: block.id(),
4292 x_offset,
4293 row: None,
4294 element,
4295 available_space: size(width, element_size.height.into()),
4296 style,
4297 overlaps_gutter: true,
4298 is_buffer_header: block.is_buffer_header(),
4299 });
4300 }
4301 }
4302
4303 if resized_blocks.is_empty() {
4304 *scroll_width =
4305 (*scroll_width).max(fixed_block_max_width - editor_margins.gutter.width);
4306 }
4307
4308 RenderBlocksOutput {
4309 blocks,
4310 row_block_types,
4311 resized_blocks: (!resized_blocks.is_empty()).then_some(resized_blocks),
4312 }
4313 }
4314
4315 fn layout_blocks(
4316 &self,
4317 blocks: &mut Vec<BlockLayout>,
4318 hitbox: &Hitbox,
4319 line_height: Pixels,
4320 scroll_position: gpui::Point<ScrollOffset>,
4321 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4322 window: &mut Window,
4323 cx: &mut App,
4324 ) {
4325 for block in blocks {
4326 let mut origin = if let Some(row) = block.row {
4327 hitbox.origin
4328 + point(
4329 block.x_offset,
4330 Pixels::from(
4331 (row.as_f64() - scroll_position.y)
4332 * ScrollPixelOffset::from(line_height),
4333 ),
4334 )
4335 } else {
4336 // Position the block outside the visible area
4337 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
4338 };
4339
4340 if !matches!(block.style, BlockStyle::Sticky) {
4341 origin += point(Pixels::from(-scroll_pixel_position.x), Pixels::ZERO);
4342 }
4343
4344 let focus_handle =
4345 block
4346 .element
4347 .prepaint_as_root(origin, block.available_space, window, cx);
4348
4349 if let Some(focus_handle) = focus_handle {
4350 self.editor.update(cx, |editor, _cx| {
4351 editor.set_focused_block(FocusedBlock {
4352 id: block.id,
4353 focus_handle: focus_handle.downgrade(),
4354 });
4355 });
4356 }
4357 }
4358 }
4359
4360 fn layout_sticky_buffer_header(
4361 &self,
4362 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
4363 scroll_position: gpui::Point<ScrollOffset>,
4364 line_height: Pixels,
4365 right_margin: Pixels,
4366 snapshot: &EditorSnapshot,
4367 hitbox: &Hitbox,
4368 selected_buffer_ids: &Vec<BufferId>,
4369 blocks: &[BlockLayout],
4370 latest_selection_anchors: &HashMap<BufferId, Anchor>,
4371 window: &mut Window,
4372 cx: &mut App,
4373 ) -> AnyElement {
4374 let jump_data = header_jump_data(
4375 snapshot,
4376 DisplayRow(scroll_position.y as u32),
4377 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
4378 excerpt,
4379 latest_selection_anchors,
4380 );
4381
4382 let editor_bg_color = cx.theme().colors().editor_background;
4383
4384 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
4385
4386 let available_width = hitbox.bounds.size.width - right_margin;
4387
4388 let mut header = v_flex()
4389 .w_full()
4390 .relative()
4391 .child(
4392 div()
4393 .w(available_width)
4394 .h(FILE_HEADER_HEIGHT as f32 * line_height)
4395 .bg(linear_gradient(
4396 0.,
4397 linear_color_stop(editor_bg_color.opacity(0.), 0.),
4398 linear_color_stop(editor_bg_color, 0.6),
4399 ))
4400 .absolute()
4401 .top_0(),
4402 )
4403 .child(
4404 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
4405 .into_any_element(),
4406 )
4407 .into_any_element();
4408
4409 let mut origin = hitbox.origin;
4410 // Move floating header up to avoid colliding with the next buffer header.
4411 for block in blocks.iter() {
4412 if !block.is_buffer_header {
4413 continue;
4414 }
4415
4416 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position.y as u32) else {
4417 continue;
4418 };
4419
4420 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
4421 let offset = scroll_position.y - max_row as f64;
4422
4423 if offset > 0.0 {
4424 origin.y -= Pixels::from(offset * ScrollPixelOffset::from(line_height));
4425 }
4426 break;
4427 }
4428
4429 let size = size(
4430 AvailableSpace::Definite(available_width),
4431 AvailableSpace::MinContent,
4432 );
4433
4434 header.prepaint_as_root(origin, size, window, cx);
4435
4436 header
4437 }
4438
4439 fn layout_sticky_headers(
4440 &self,
4441 snapshot: &EditorSnapshot,
4442 editor_width: Pixels,
4443 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4444 line_height: Pixels,
4445 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4446 content_origin: gpui::Point<Pixels>,
4447 gutter_dimensions: &GutterDimensions,
4448 gutter_hitbox: &Hitbox,
4449 text_hitbox: &Hitbox,
4450 style: &EditorStyle,
4451 relative_line_numbers: RelativeLineNumbers,
4452 relative_to: Option<DisplayRow>,
4453 window: &mut Window,
4454 cx: &mut App,
4455 ) -> Option<StickyHeaders> {
4456 let show_line_numbers = snapshot
4457 .show_line_numbers
4458 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
4459
4460 let rows = Self::sticky_headers(self.editor.read(cx), snapshot, style, cx);
4461
4462 let mut lines = Vec::<StickyHeaderLine>::new();
4463
4464 for StickyHeader {
4465 item,
4466 sticky_row,
4467 start_point,
4468 offset,
4469 } in rows.into_iter().rev()
4470 {
4471 let line = layout_line(
4472 sticky_row,
4473 snapshot,
4474 &self.style,
4475 editor_width,
4476 is_row_soft_wrapped,
4477 window,
4478 cx,
4479 );
4480
4481 let line_number = show_line_numbers.then(|| {
4482 let start_display_row = start_point.to_display_point(snapshot).row();
4483 let relative_number = relative_to
4484 .filter(|_| relative_line_numbers != RelativeLineNumbers::Disabled)
4485 .map(|base| {
4486 snapshot.relative_line_delta(
4487 base,
4488 start_display_row,
4489 relative_line_numbers == RelativeLineNumbers::Wrapped,
4490 )
4491 });
4492 let number = relative_number
4493 .filter(|&delta| delta != 0)
4494 .map(|delta| delta.unsigned_abs() as u32)
4495 .unwrap_or(start_point.row + 1);
4496 let color = cx.theme().colors().editor_line_number;
4497 self.shape_line_number(SharedString::from(number.to_string()), color, window)
4498 });
4499
4500 lines.push(StickyHeaderLine::new(
4501 sticky_row,
4502 line_height * offset as f32,
4503 line,
4504 line_number,
4505 item.range.start,
4506 line_height,
4507 scroll_pixel_position,
4508 content_origin,
4509 gutter_hitbox,
4510 text_hitbox,
4511 window,
4512 cx,
4513 ));
4514 }
4515
4516 lines.reverse();
4517 if lines.is_empty() {
4518 return None;
4519 }
4520
4521 Some(StickyHeaders {
4522 lines,
4523 gutter_background: cx.theme().colors().editor_gutter_background,
4524 content_background: self.style.background,
4525 gutter_right_padding: gutter_dimensions.right_padding,
4526 })
4527 }
4528
4529 pub(crate) fn sticky_headers(
4530 editor: &Editor,
4531 snapshot: &EditorSnapshot,
4532 style: &EditorStyle,
4533 cx: &App,
4534 ) -> Vec<StickyHeader> {
4535 let scroll_top = snapshot.scroll_position().y;
4536
4537 let mut end_rows = Vec::<DisplayRow>::new();
4538 let mut rows = Vec::<StickyHeader>::new();
4539
4540 let items = editor.sticky_headers(style, cx).unwrap_or_default();
4541
4542 for item in items {
4543 let start_point = item.range.start.to_point(snapshot.buffer_snapshot());
4544 let end_point = item.range.end.to_point(snapshot.buffer_snapshot());
4545
4546 let sticky_row = snapshot
4547 .display_snapshot
4548 .point_to_display_point(start_point, Bias::Left)
4549 .row();
4550 let end_row = snapshot
4551 .display_snapshot
4552 .point_to_display_point(end_point, Bias::Left)
4553 .row();
4554 let max_sticky_row = end_row.previous_row();
4555 if max_sticky_row <= sticky_row {
4556 continue;
4557 }
4558
4559 while end_rows
4560 .last()
4561 .is_some_and(|&last_end| last_end <= sticky_row)
4562 {
4563 end_rows.pop();
4564 }
4565 let depth = end_rows.len();
4566 let adjusted_scroll_top = scroll_top + depth as f64;
4567
4568 if sticky_row.as_f64() >= adjusted_scroll_top || end_row.as_f64() <= adjusted_scroll_top
4569 {
4570 continue;
4571 }
4572
4573 let max_scroll_offset = max_sticky_row.as_f64() - scroll_top;
4574 let offset = (depth as f64).min(max_scroll_offset);
4575
4576 end_rows.push(end_row);
4577 rows.push(StickyHeader {
4578 item,
4579 sticky_row,
4580 start_point,
4581 offset,
4582 });
4583 }
4584
4585 rows
4586 }
4587
4588 fn layout_cursor_popovers(
4589 &self,
4590 line_height: Pixels,
4591 text_hitbox: &Hitbox,
4592 content_origin: gpui::Point<Pixels>,
4593 right_margin: Pixels,
4594 start_row: DisplayRow,
4595 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4596 line_layouts: &[LineWithInvisibles],
4597 cursor: DisplayPoint,
4598 cursor_point: Point,
4599 style: &EditorStyle,
4600 window: &mut Window,
4601 cx: &mut App,
4602 ) -> Option<ContextMenuLayout> {
4603 let mut min_menu_height = Pixels::ZERO;
4604 let mut max_menu_height = Pixels::ZERO;
4605 let mut height_above_menu = Pixels::ZERO;
4606 let height_below_menu = Pixels::ZERO;
4607 let mut edit_prediction_popover_visible = false;
4608 let mut context_menu_visible = false;
4609 let context_menu_placement;
4610
4611 {
4612 let editor = self.editor.read(cx);
4613 if editor.edit_prediction_visible_in_cursor_popover(editor.has_active_edit_prediction())
4614 {
4615 height_above_menu +=
4616 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
4617 edit_prediction_popover_visible = true;
4618 }
4619
4620 if editor.context_menu_visible()
4621 && let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin()
4622 {
4623 let (min_height_in_lines, max_height_in_lines) = editor
4624 .context_menu_options
4625 .as_ref()
4626 .map_or((3, 12), |options| {
4627 (options.min_entries_visible, options.max_entries_visible)
4628 });
4629
4630 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4631 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4632 context_menu_visible = true;
4633 }
4634 context_menu_placement = editor
4635 .context_menu_options
4636 .as_ref()
4637 .and_then(|options| options.placement.clone());
4638 }
4639
4640 let visible = edit_prediction_popover_visible || context_menu_visible;
4641 if !visible {
4642 return None;
4643 }
4644
4645 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
4646 let target_position = content_origin
4647 + gpui::Point {
4648 x: cmp::max(
4649 px(0.),
4650 Pixels::from(
4651 ScrollPixelOffset::from(
4652 cursor_row_layout.x_for_index(cursor.column() as usize),
4653 ) - scroll_pixel_position.x,
4654 ),
4655 ),
4656 y: cmp::max(
4657 px(0.),
4658 Pixels::from(
4659 cursor.row().next_row().as_f64() * ScrollPixelOffset::from(line_height)
4660 - scroll_pixel_position.y,
4661 ),
4662 ),
4663 };
4664
4665 let viewport_bounds =
4666 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4667 right: -right_margin - MENU_GAP,
4668 ..Default::default()
4669 });
4670
4671 let min_height = height_above_menu + min_menu_height + height_below_menu;
4672 let max_height = height_above_menu + max_menu_height + height_below_menu;
4673 let (laid_out_popovers, y_flipped) = self.layout_popovers_above_or_below_line(
4674 target_position,
4675 line_height,
4676 min_height,
4677 max_height,
4678 context_menu_placement,
4679 text_hitbox,
4680 viewport_bounds,
4681 window,
4682 cx,
4683 |height, max_width_for_stable_x, y_flipped, window, cx| {
4684 // First layout the menu to get its size - others can be at least this wide.
4685 let context_menu = if context_menu_visible {
4686 let menu_height = if y_flipped {
4687 height - height_below_menu
4688 } else {
4689 height - height_above_menu
4690 };
4691 let mut element = self
4692 .render_context_menu(line_height, menu_height, window, cx)
4693 .expect("Visible context menu should always render.");
4694 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4695 Some((CursorPopoverType::CodeContextMenu, element, size))
4696 } else {
4697 None
4698 };
4699 let min_width = context_menu
4700 .as_ref()
4701 .map_or(px(0.), |(_, _, size)| size.width);
4702 let max_width = max_width_for_stable_x.max(
4703 context_menu
4704 .as_ref()
4705 .map_or(px(0.), |(_, _, size)| size.width),
4706 );
4707
4708 let edit_prediction = if edit_prediction_popover_visible {
4709 self.editor.update(cx, move |editor, cx| {
4710 let accept_binding = editor.accept_edit_prediction_keybind(
4711 EditPredictionGranularity::Full,
4712 window,
4713 cx,
4714 );
4715 let mut element = editor.render_edit_prediction_cursor_popover(
4716 min_width,
4717 max_width,
4718 cursor_point,
4719 style,
4720 accept_binding.keystroke(),
4721 window,
4722 cx,
4723 )?;
4724 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4725 Some((CursorPopoverType::EditPrediction, element, size))
4726 })
4727 } else {
4728 None
4729 };
4730 vec![edit_prediction, context_menu]
4731 .into_iter()
4732 .flatten()
4733 .collect::<Vec<_>>()
4734 },
4735 )?;
4736
4737 let (menu_ix, (_, menu_bounds)) = laid_out_popovers
4738 .iter()
4739 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))?;
4740 let last_ix = laid_out_popovers.len() - 1;
4741 let menu_is_last = menu_ix == last_ix;
4742 let first_popover_bounds = laid_out_popovers[0].1;
4743 let last_popover_bounds = laid_out_popovers[last_ix].1;
4744
4745 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
4746 // right, and otherwise it goes below or to the right.
4747 let mut target_bounds = Bounds::from_corners(
4748 first_popover_bounds.origin,
4749 last_popover_bounds.bottom_right(),
4750 );
4751 target_bounds.size.width = menu_bounds.size.width;
4752
4753 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
4754 // based on this is preferred for layout stability.
4755 let mut max_target_bounds = target_bounds;
4756 max_target_bounds.size.height = max_height;
4757 if y_flipped {
4758 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
4759 }
4760
4761 // Add spacing around `target_bounds` and `max_target_bounds`.
4762 let mut extend_amount = Edges::all(MENU_GAP);
4763 if y_flipped {
4764 extend_amount.bottom = line_height;
4765 } else {
4766 extend_amount.top = line_height;
4767 }
4768 let target_bounds = target_bounds.extend(extend_amount);
4769 let max_target_bounds = max_target_bounds.extend(extend_amount);
4770
4771 let must_place_above_or_below =
4772 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
4773 laid_out_popovers[menu_ix + 1..]
4774 .iter()
4775 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
4776 } else {
4777 false
4778 };
4779
4780 let aside_bounds = self.layout_context_menu_aside(
4781 y_flipped,
4782 *menu_bounds,
4783 target_bounds,
4784 max_target_bounds,
4785 max_menu_height,
4786 must_place_above_or_below,
4787 text_hitbox,
4788 viewport_bounds,
4789 window,
4790 cx,
4791 );
4792
4793 if let Some(menu_bounds) = laid_out_popovers.iter().find_map(|(popover_type, bounds)| {
4794 if matches!(popover_type, CursorPopoverType::CodeContextMenu) {
4795 Some(*bounds)
4796 } else {
4797 None
4798 }
4799 }) {
4800 let bounds = if let Some(aside_bounds) = aside_bounds {
4801 menu_bounds.union(&aside_bounds)
4802 } else {
4803 menu_bounds
4804 };
4805 return Some(ContextMenuLayout { y_flipped, bounds });
4806 }
4807
4808 None
4809 }
4810
4811 fn layout_gutter_menu(
4812 &self,
4813 line_height: Pixels,
4814 text_hitbox: &Hitbox,
4815 content_origin: gpui::Point<Pixels>,
4816 right_margin: Pixels,
4817 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4818 gutter_overshoot: Pixels,
4819 window: &mut Window,
4820 cx: &mut App,
4821 ) {
4822 let editor = self.editor.read(cx);
4823 if !editor.context_menu_visible() {
4824 return;
4825 }
4826 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
4827 editor.context_menu_origin()
4828 else {
4829 return;
4830 };
4831 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
4832 // indicator than just a plain first column of the text field.
4833 let target_position = content_origin
4834 + gpui::Point {
4835 x: -gutter_overshoot,
4836 y: Pixels::from(
4837 gutter_row.next_row().as_f64() * ScrollPixelOffset::from(line_height)
4838 - scroll_pixel_position.y,
4839 ),
4840 };
4841
4842 let (min_height_in_lines, max_height_in_lines) = editor
4843 .context_menu_options
4844 .as_ref()
4845 .map_or((3, 12), |options| {
4846 (options.min_entries_visible, options.max_entries_visible)
4847 });
4848
4849 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4850 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4851 let viewport_bounds =
4852 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4853 right: -right_margin - MENU_GAP,
4854 ..Default::default()
4855 });
4856 self.layout_popovers_above_or_below_line(
4857 target_position,
4858 line_height,
4859 min_height,
4860 max_height,
4861 editor
4862 .context_menu_options
4863 .as_ref()
4864 .and_then(|options| options.placement.clone()),
4865 text_hitbox,
4866 viewport_bounds,
4867 window,
4868 cx,
4869 move |height, _max_width_for_stable_x, _, window, cx| {
4870 let mut element = self
4871 .render_context_menu(line_height, height, window, cx)
4872 .expect("Visible context menu should always render.");
4873 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4874 vec![(CursorPopoverType::CodeContextMenu, element, size)]
4875 },
4876 );
4877 }
4878
4879 fn layout_popovers_above_or_below_line(
4880 &self,
4881 target_position: gpui::Point<Pixels>,
4882 line_height: Pixels,
4883 min_height: Pixels,
4884 max_height: Pixels,
4885 placement: Option<ContextMenuPlacement>,
4886 text_hitbox: &Hitbox,
4887 viewport_bounds: Bounds<Pixels>,
4888 window: &mut Window,
4889 cx: &mut App,
4890 make_sized_popovers: impl FnOnce(
4891 Pixels,
4892 Pixels,
4893 bool,
4894 &mut Window,
4895 &mut App,
4896 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
4897 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
4898 let text_style = TextStyleRefinement {
4899 line_height: Some(DefiniteLength::Fraction(
4900 BufferLineHeight::Comfortable.value(),
4901 )),
4902 ..Default::default()
4903 };
4904 window.with_text_style(Some(text_style), |window| {
4905 // If the max height won't fit below and there is more space above, put it above the line.
4906 let bottom_y_when_flipped = target_position.y - line_height;
4907 let available_above = bottom_y_when_flipped - text_hitbox.top();
4908 let available_below = text_hitbox.bottom() - target_position.y;
4909 let y_overflows_below = max_height > available_below;
4910 let mut y_flipped = match placement {
4911 Some(ContextMenuPlacement::Above) => true,
4912 Some(ContextMenuPlacement::Below) => false,
4913 None => y_overflows_below && available_above > available_below,
4914 };
4915 let mut height = cmp::min(
4916 max_height,
4917 if y_flipped {
4918 available_above
4919 } else {
4920 available_below
4921 },
4922 );
4923
4924 // If the min height doesn't fit within text bounds, instead fit within the window.
4925 if height < min_height {
4926 let available_above = bottom_y_when_flipped;
4927 let available_below = viewport_bounds.bottom() - target_position.y;
4928 let (y_flipped_override, height_override) = match placement {
4929 Some(ContextMenuPlacement::Above) => {
4930 (true, cmp::min(available_above, min_height))
4931 }
4932 Some(ContextMenuPlacement::Below) => {
4933 (false, cmp::min(available_below, min_height))
4934 }
4935 None => {
4936 if available_below > min_height {
4937 (false, min_height)
4938 } else if available_above > min_height {
4939 (true, min_height)
4940 } else if available_above > available_below {
4941 (true, available_above)
4942 } else {
4943 (false, available_below)
4944 }
4945 }
4946 };
4947 y_flipped = y_flipped_override;
4948 height = height_override;
4949 }
4950
4951 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
4952
4953 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
4954 // for very narrow windows.
4955 let popovers =
4956 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
4957 if popovers.is_empty() {
4958 return None;
4959 }
4960
4961 let max_width = popovers
4962 .iter()
4963 .map(|(_, _, size)| size.width)
4964 .max()
4965 .unwrap_or_default();
4966
4967 let mut current_position = gpui::Point {
4968 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
4969 // overflow. Include space for the scrollbar.
4970 x: target_position
4971 .x
4972 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
4973 y: if y_flipped {
4974 bottom_y_when_flipped
4975 } else {
4976 target_position.y
4977 },
4978 };
4979
4980 let mut laid_out_popovers = popovers
4981 .into_iter()
4982 .map(|(popover_type, element, size)| {
4983 if y_flipped {
4984 current_position.y -= size.height;
4985 }
4986 let position = current_position;
4987 window.defer_draw(element, current_position, 1);
4988 if !y_flipped {
4989 current_position.y += size.height + MENU_GAP;
4990 } else {
4991 current_position.y -= MENU_GAP;
4992 }
4993 (popover_type, Bounds::new(position, size))
4994 })
4995 .collect::<Vec<_>>();
4996
4997 if y_flipped {
4998 laid_out_popovers.reverse();
4999 }
5000
5001 Some((laid_out_popovers, y_flipped))
5002 })
5003 }
5004
5005 fn layout_context_menu_aside(
5006 &self,
5007 y_flipped: bool,
5008 menu_bounds: Bounds<Pixels>,
5009 target_bounds: Bounds<Pixels>,
5010 max_target_bounds: Bounds<Pixels>,
5011 max_height: Pixels,
5012 must_place_above_or_below: bool,
5013 text_hitbox: &Hitbox,
5014 viewport_bounds: Bounds<Pixels>,
5015 window: &mut Window,
5016 cx: &mut App,
5017 ) -> Option<Bounds<Pixels>> {
5018 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
5019 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
5020 && !must_place_above_or_below
5021 {
5022 let max_width = cmp::min(
5023 available_within_viewport.right - px(1.),
5024 MENU_ASIDE_MAX_WIDTH,
5025 );
5026 let mut aside = self.render_context_menu_aside(
5027 size(max_width, max_height - POPOVER_Y_PADDING),
5028 window,
5029 cx,
5030 )?;
5031 let size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5032 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
5033 Some((aside, right_position, size))
5034 } else {
5035 let max_size = size(
5036 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
5037 // won't be needed here.
5038 cmp::min(
5039 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
5040 viewport_bounds.right(),
5041 ),
5042 cmp::min(
5043 max_height,
5044 cmp::max(
5045 available_within_viewport.top,
5046 available_within_viewport.bottom,
5047 ),
5048 ) - POPOVER_Y_PADDING,
5049 );
5050 let mut aside = self.render_context_menu_aside(max_size, window, cx)?;
5051 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5052
5053 let top_position = point(
5054 menu_bounds.origin.x,
5055 target_bounds.top() - actual_size.height,
5056 );
5057 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
5058
5059 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
5060 // Prefer to fit on the same side of the line as the menu, then on the other side of
5061 // the line.
5062 if !y_flipped && wanted.height < available.bottom {
5063 Some(bottom_position)
5064 } else if !y_flipped && wanted.height < available.top {
5065 Some(top_position)
5066 } else if y_flipped && wanted.height < available.top {
5067 Some(top_position)
5068 } else if y_flipped && wanted.height < available.bottom {
5069 Some(bottom_position)
5070 } else {
5071 None
5072 }
5073 };
5074
5075 // Prefer choosing a direction using max sizes rather than actual size for stability.
5076 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
5077 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
5078 let aside_position = fit_within(available_within_text, wanted)
5079 // Fallback: fit max size in window.
5080 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
5081 // Fallback: fit actual size in window.
5082 .or_else(|| fit_within(available_within_viewport, actual_size));
5083
5084 aside_position.map(|position| (aside, position, actual_size))
5085 };
5086
5087 // Skip drawing if it doesn't fit anywhere.
5088 if let Some((aside, position, size)) = positioned_aside {
5089 let aside_bounds = Bounds::new(position, size);
5090 window.defer_draw(aside, position, 2);
5091 return Some(aside_bounds);
5092 }
5093
5094 None
5095 }
5096
5097 fn render_context_menu(
5098 &self,
5099 line_height: Pixels,
5100 height: Pixels,
5101 window: &mut Window,
5102 cx: &mut App,
5103 ) -> Option<AnyElement> {
5104 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
5105 self.editor.update(cx, |editor, cx| {
5106 editor.render_context_menu(max_height_in_lines, window, cx)
5107 })
5108 }
5109
5110 fn render_context_menu_aside(
5111 &self,
5112 max_size: Size<Pixels>,
5113 window: &mut Window,
5114 cx: &mut App,
5115 ) -> Option<AnyElement> {
5116 if max_size.width < px(100.) || max_size.height < px(12.) {
5117 None
5118 } else {
5119 self.editor.update(cx, |editor, cx| {
5120 editor.render_context_menu_aside(max_size, window, cx)
5121 })
5122 }
5123 }
5124
5125 fn layout_mouse_context_menu(
5126 &self,
5127 editor_snapshot: &EditorSnapshot,
5128 visible_range: Range<DisplayRow>,
5129 content_origin: gpui::Point<Pixels>,
5130 window: &mut Window,
5131 cx: &mut App,
5132 ) -> Option<AnyElement> {
5133 let position = self.editor.update(cx, |editor, cx| {
5134 let visible_start_point = editor.display_to_pixel_point(
5135 DisplayPoint::new(visible_range.start, 0),
5136 editor_snapshot,
5137 window,
5138 cx,
5139 )?;
5140 let visible_end_point = editor.display_to_pixel_point(
5141 DisplayPoint::new(visible_range.end, 0),
5142 editor_snapshot,
5143 window,
5144 cx,
5145 )?;
5146
5147 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5148 let (source_display_point, position) = match mouse_context_menu.position {
5149 MenuPosition::PinnedToScreen(point) => (None, point),
5150 MenuPosition::PinnedToEditor { source, offset } => {
5151 let source_display_point = source.to_display_point(editor_snapshot);
5152 let source_point =
5153 editor.to_pixel_point(source, editor_snapshot, window, cx)?;
5154 let position = content_origin + source_point + offset;
5155 (Some(source_display_point), position)
5156 }
5157 };
5158
5159 let source_included = source_display_point.is_none_or(|source_display_point| {
5160 visible_range
5161 .to_inclusive()
5162 .contains(&source_display_point.row())
5163 });
5164 let position_included =
5165 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
5166 if !source_included && !position_included {
5167 None
5168 } else {
5169 Some(position)
5170 }
5171 })?;
5172
5173 let text_style = TextStyleRefinement {
5174 line_height: Some(DefiniteLength::Fraction(
5175 BufferLineHeight::Comfortable.value(),
5176 )),
5177 ..Default::default()
5178 };
5179 window.with_text_style(Some(text_style), |window| {
5180 let mut element = self.editor.read_with(cx, |editor, _| {
5181 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5182 let context_menu = mouse_context_menu.context_menu.clone();
5183
5184 Some(
5185 deferred(
5186 anchored()
5187 .position(position)
5188 .child(context_menu)
5189 .anchor(Corner::TopLeft)
5190 .snap_to_window_with_margin(px(8.)),
5191 )
5192 .with_priority(1)
5193 .into_any(),
5194 )
5195 })?;
5196
5197 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
5198 Some(element)
5199 })
5200 }
5201
5202 fn layout_hover_popovers(
5203 &self,
5204 snapshot: &EditorSnapshot,
5205 hitbox: &Hitbox,
5206 visible_display_row_range: Range<DisplayRow>,
5207 content_origin: gpui::Point<Pixels>,
5208 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5209 line_layouts: &[LineWithInvisibles],
5210 line_height: Pixels,
5211 em_width: Pixels,
5212 context_menu_layout: Option<ContextMenuLayout>,
5213 window: &mut Window,
5214 cx: &mut App,
5215 ) {
5216 struct MeasuredHoverPopover {
5217 element: AnyElement,
5218 size: Size<Pixels>,
5219 horizontal_offset: Pixels,
5220 }
5221
5222 let max_size = size(
5223 (120. * em_width) // Default size
5224 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5225 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5226 (16. * line_height) // Default size
5227 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5228 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5229 );
5230
5231 // Don't show hover popovers when context menu is open to avoid overlap
5232 let has_context_menu = self.editor.read(cx).mouse_context_menu.is_some();
5233 if has_context_menu {
5234 return;
5235 }
5236
5237 let hover_popovers = self.editor.update(cx, |editor, cx| {
5238 editor.hover_state.render(
5239 snapshot,
5240 visible_display_row_range.clone(),
5241 max_size,
5242 &editor.text_layout_details(window),
5243 window,
5244 cx,
5245 )
5246 });
5247 let Some((popover_position, hover_popovers)) = hover_popovers else {
5248 return;
5249 };
5250
5251 // This is safe because we check on layout whether the required row is available
5252 let hovered_row_layout = &line_layouts[popover_position
5253 .row()
5254 .minus(visible_display_row_range.start)
5255 as usize];
5256
5257 // Compute Hovered Point
5258 let x = hovered_row_layout.x_for_index(popover_position.column() as usize)
5259 - Pixels::from(scroll_pixel_position.x);
5260 let y = Pixels::from(
5261 popover_position.row().as_f64() * ScrollPixelOffset::from(line_height)
5262 - scroll_pixel_position.y,
5263 );
5264 let hovered_point = content_origin + point(x, y);
5265
5266 let mut overall_height = Pixels::ZERO;
5267 let mut measured_hover_popovers = Vec::new();
5268 for (position, mut hover_popover) in hover_popovers.into_iter().with_position() {
5269 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
5270 let horizontal_offset =
5271 (hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
5272 .min(Pixels::ZERO);
5273 match position {
5274 itertools::Position::Middle | itertools::Position::Last => {
5275 overall_height += HOVER_POPOVER_GAP
5276 }
5277 _ => {}
5278 }
5279 overall_height += size.height;
5280 measured_hover_popovers.push(MeasuredHoverPopover {
5281 element: hover_popover,
5282 size,
5283 horizontal_offset,
5284 });
5285 }
5286
5287 fn draw_occluder(
5288 width: Pixels,
5289 origin: gpui::Point<Pixels>,
5290 window: &mut Window,
5291 cx: &mut App,
5292 ) {
5293 let mut occlusion = div()
5294 .size_full()
5295 .occlude()
5296 .on_mouse_move(|_, _, cx| cx.stop_propagation())
5297 .into_any_element();
5298 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
5299 window.defer_draw(occlusion, origin, 2);
5300 }
5301
5302 fn place_popovers_above(
5303 hovered_point: gpui::Point<Pixels>,
5304 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5305 window: &mut Window,
5306 cx: &mut App,
5307 ) {
5308 let mut current_y = hovered_point.y;
5309 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5310 let size = popover.size;
5311 let popover_origin = point(
5312 hovered_point.x + popover.horizontal_offset,
5313 current_y - size.height,
5314 );
5315
5316 window.defer_draw(popover.element, popover_origin, 2);
5317 if position != itertools::Position::Last {
5318 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
5319 draw_occluder(size.width, origin, window, cx);
5320 }
5321
5322 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5323 }
5324 }
5325
5326 fn place_popovers_below(
5327 hovered_point: gpui::Point<Pixels>,
5328 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5329 line_height: Pixels,
5330 window: &mut Window,
5331 cx: &mut App,
5332 ) {
5333 let mut current_y = hovered_point.y + line_height;
5334 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5335 let size = popover.size;
5336 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5337
5338 window.defer_draw(popover.element, popover_origin, 2);
5339 if position != itertools::Position::Last {
5340 let origin = point(popover_origin.x, popover_origin.y + size.height);
5341 draw_occluder(size.width, origin, window, cx);
5342 }
5343
5344 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5345 }
5346 }
5347
5348 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5349 context_menu_layout
5350 .as_ref()
5351 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5352 };
5353
5354 let can_place_above = {
5355 let mut bounds_above = Vec::new();
5356 let mut current_y = hovered_point.y;
5357 for popover in &measured_hover_popovers {
5358 let size = popover.size;
5359 let popover_origin = point(
5360 hovered_point.x + popover.horizontal_offset,
5361 current_y - size.height,
5362 );
5363 bounds_above.push(Bounds::new(popover_origin, size));
5364 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5365 }
5366 bounds_above
5367 .iter()
5368 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5369 };
5370
5371 let can_place_below = || {
5372 let mut bounds_below = Vec::new();
5373 let mut current_y = hovered_point.y + line_height;
5374 for popover in &measured_hover_popovers {
5375 let size = popover.size;
5376 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5377 bounds_below.push(Bounds::new(popover_origin, size));
5378 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5379 }
5380 bounds_below
5381 .iter()
5382 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5383 };
5384
5385 if can_place_above {
5386 // try placing above hovered point
5387 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5388 } else if can_place_below() {
5389 // try placing below hovered point
5390 place_popovers_below(
5391 hovered_point,
5392 measured_hover_popovers,
5393 line_height,
5394 window,
5395 cx,
5396 );
5397 } else {
5398 // try to place popovers around the context menu
5399 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5400 let total_width = measured_hover_popovers
5401 .iter()
5402 .map(|p| p.size.width)
5403 .max()
5404 .unwrap_or(Pixels::ZERO);
5405 let y_for_horizontal_positioning = if menu.y_flipped {
5406 menu.bounds.bottom() - overall_height
5407 } else {
5408 menu.bounds.top()
5409 };
5410 let possible_origins = vec![
5411 // left of context menu
5412 point(
5413 menu.bounds.left() - total_width - HOVER_POPOVER_GAP,
5414 y_for_horizontal_positioning,
5415 ),
5416 // right of context menu
5417 point(
5418 menu.bounds.right() + HOVER_POPOVER_GAP,
5419 y_for_horizontal_positioning,
5420 ),
5421 // top of context menu
5422 point(
5423 menu.bounds.left(),
5424 menu.bounds.top() - overall_height - HOVER_POPOVER_GAP,
5425 ),
5426 // bottom of context menu
5427 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5428 ];
5429 possible_origins.into_iter().find(|&origin| {
5430 Bounds::new(origin, size(total_width, overall_height))
5431 .is_contained_within(hitbox)
5432 })
5433 });
5434 if let Some(origin) = origin_surrounding_menu {
5435 let mut current_y = origin.y;
5436 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5437 let size = popover.size;
5438 let popover_origin = point(origin.x, current_y);
5439
5440 window.defer_draw(popover.element, popover_origin, 2);
5441 if position != itertools::Position::Last {
5442 let origin = point(popover_origin.x, popover_origin.y + size.height);
5443 draw_occluder(size.width, origin, window, cx);
5444 }
5445
5446 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5447 }
5448 } else {
5449 // fallback to existing above/below cursor logic
5450 // this might overlap menu or overflow in rare case
5451 if can_place_above {
5452 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5453 } else {
5454 place_popovers_below(
5455 hovered_point,
5456 measured_hover_popovers,
5457 line_height,
5458 window,
5459 cx,
5460 );
5461 }
5462 }
5463 }
5464 }
5465
5466 fn layout_word_diff_highlights(
5467 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5468 row_infos: &[RowInfo],
5469 start_row: DisplayRow,
5470 snapshot: &EditorSnapshot,
5471 highlighted_ranges: &mut Vec<(Range<DisplayPoint>, Hsla)>,
5472 cx: &mut App,
5473 ) {
5474 let colors = cx.theme().colors();
5475
5476 let word_highlights = display_hunks
5477 .into_iter()
5478 .filter_map(|(hunk, _)| match hunk {
5479 DisplayDiffHunk::Unfolded {
5480 word_diffs, status, ..
5481 } => Some((word_diffs, status)),
5482 _ => None,
5483 })
5484 .filter(|(_, status)| status.is_modified())
5485 .flat_map(|(word_diffs, _)| word_diffs)
5486 .filter_map(|word_diff| {
5487 let start_point = word_diff.start.to_display_point(&snapshot.display_snapshot);
5488 let end_point = word_diff.end.to_display_point(&snapshot.display_snapshot);
5489 let start_row_offset = start_point.row().0.saturating_sub(start_row.0) as usize;
5490
5491 row_infos
5492 .get(start_row_offset)
5493 .and_then(|row_info| row_info.diff_status)
5494 .and_then(|diff_status| {
5495 let background_color = match diff_status.kind {
5496 DiffHunkStatusKind::Added => colors.version_control_word_added,
5497 DiffHunkStatusKind::Deleted => colors.version_control_word_deleted,
5498 DiffHunkStatusKind::Modified => {
5499 debug_panic!("modified diff status for row info");
5500 return None;
5501 }
5502 };
5503 Some((start_point..end_point, background_color))
5504 })
5505 });
5506
5507 highlighted_ranges.extend(word_highlights);
5508 }
5509
5510 fn layout_diff_hunk_controls(
5511 &self,
5512 row_range: Range<DisplayRow>,
5513 row_infos: &[RowInfo],
5514 text_hitbox: &Hitbox,
5515 newest_cursor_position: Option<DisplayPoint>,
5516 line_height: Pixels,
5517 right_margin: Pixels,
5518 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5519 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5520 highlighted_rows: &BTreeMap<DisplayRow, LineHighlight>,
5521 editor: Entity<Editor>,
5522 window: &mut Window,
5523 cx: &mut App,
5524 ) -> (Vec<AnyElement>, Vec<(DisplayRow, Bounds<Pixels>)>) {
5525 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
5526 let hovered_diff_hunk_row = editor.read(cx).hovered_diff_hunk_row;
5527
5528 let mut controls = vec![];
5529 let mut control_bounds = vec![];
5530
5531 let active_positions = [
5532 hovered_diff_hunk_row.map(|row| DisplayPoint::new(row, 0)),
5533 newest_cursor_position,
5534 ];
5535
5536 for (hunk, _) in display_hunks {
5537 if let DisplayDiffHunk::Unfolded {
5538 display_row_range,
5539 multi_buffer_range,
5540 status,
5541 is_created_file,
5542 ..
5543 } = &hunk
5544 {
5545 if display_row_range.start < row_range.start
5546 || display_row_range.start >= row_range.end
5547 {
5548 continue;
5549 }
5550 if highlighted_rows
5551 .get(&display_row_range.start)
5552 .and_then(|highlight| highlight.type_id)
5553 .is_some_and(|type_id| {
5554 [
5555 TypeId::of::<ConflictsOuter>(),
5556 TypeId::of::<ConflictsOursMarker>(),
5557 TypeId::of::<ConflictsOurs>(),
5558 TypeId::of::<ConflictsTheirs>(),
5559 TypeId::of::<ConflictsTheirsMarker>(),
5560 ]
5561 .contains(&type_id)
5562 })
5563 {
5564 continue;
5565 }
5566 let row_ix = (display_row_range.start - row_range.start).0 as usize;
5567 if row_infos[row_ix].diff_status.is_none() {
5568 continue;
5569 }
5570
5571 if active_positions
5572 .iter()
5573 .any(|p| p.is_some_and(|p| display_row_range.contains(&p.row())))
5574 {
5575 let y = (display_row_range.start.as_f64()
5576 * ScrollPixelOffset::from(line_height)
5577 + ScrollPixelOffset::from(text_hitbox.bounds.top())
5578 - scroll_pixel_position.y)
5579 .into();
5580
5581 let mut element = render_diff_hunk_controls(
5582 display_row_range.start.0,
5583 status,
5584 multi_buffer_range.clone(),
5585 *is_created_file,
5586 line_height,
5587 &editor,
5588 window,
5589 cx,
5590 );
5591 let size =
5592 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
5593
5594 let x = text_hitbox.bounds.right() - right_margin - px(10.) - size.width;
5595
5596 if x < text_hitbox.bounds.left() {
5597 continue;
5598 }
5599
5600 let bounds = Bounds::new(gpui::Point::new(x, y), size);
5601 control_bounds.push((display_row_range.start, bounds));
5602
5603 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
5604 element.prepaint(window, cx)
5605 });
5606 controls.push(element);
5607 }
5608 }
5609 }
5610
5611 (controls, control_bounds)
5612 }
5613
5614 fn layout_signature_help(
5615 &self,
5616 hitbox: &Hitbox,
5617 content_origin: gpui::Point<Pixels>,
5618 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5619 newest_selection_head: Option<DisplayPoint>,
5620 start_row: DisplayRow,
5621 line_layouts: &[LineWithInvisibles],
5622 line_height: Pixels,
5623 em_width: Pixels,
5624 context_menu_layout: Option<ContextMenuLayout>,
5625 window: &mut Window,
5626 cx: &mut App,
5627 ) {
5628 if !self.editor.focus_handle(cx).is_focused(window) {
5629 return;
5630 }
5631 let Some(newest_selection_head) = newest_selection_head else {
5632 return;
5633 };
5634
5635 let max_size = size(
5636 (120. * em_width) // Default size
5637 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5638 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5639 (16. * line_height) // Default size
5640 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5641 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5642 );
5643
5644 let maybe_element = self.editor.update(cx, |editor, cx| {
5645 if let Some(popover) = editor.signature_help_state.popover_mut() {
5646 let element = popover.render(max_size, window, cx);
5647 Some(element)
5648 } else {
5649 None
5650 }
5651 });
5652 let Some(mut element) = maybe_element else {
5653 return;
5654 };
5655
5656 let selection_row = newest_selection_head.row();
5657 let Some(cursor_row_layout) = (selection_row >= start_row)
5658 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
5659 .flatten()
5660 else {
5661 return;
5662 };
5663
5664 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
5665 - Pixels::from(scroll_pixel_position.x);
5666 let target_y = Pixels::from(
5667 selection_row.as_f64() * ScrollPixelOffset::from(line_height) - scroll_pixel_position.y,
5668 );
5669 let target_point = content_origin + point(target_x, target_y);
5670
5671 let actual_size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
5672
5673 let (popover_bounds_above, popover_bounds_below) = {
5674 let horizontal_offset = (hitbox.top_right().x
5675 - POPOVER_RIGHT_OFFSET
5676 - (target_point.x + actual_size.width))
5677 .min(Pixels::ZERO);
5678 let initial_x = target_point.x + horizontal_offset;
5679 (
5680 Bounds::new(
5681 point(initial_x, target_point.y - actual_size.height),
5682 actual_size,
5683 ),
5684 Bounds::new(
5685 point(initial_x, target_point.y + line_height + HOVER_POPOVER_GAP),
5686 actual_size,
5687 ),
5688 )
5689 };
5690
5691 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5692 context_menu_layout
5693 .as_ref()
5694 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5695 };
5696
5697 let final_origin = if popover_bounds_above.is_contained_within(hitbox)
5698 && !intersects_menu(popover_bounds_above)
5699 {
5700 // try placing above cursor
5701 popover_bounds_above.origin
5702 } else if popover_bounds_below.is_contained_within(hitbox)
5703 && !intersects_menu(popover_bounds_below)
5704 {
5705 // try placing below cursor
5706 popover_bounds_below.origin
5707 } else {
5708 // try surrounding context menu if exists
5709 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5710 let y_for_horizontal_positioning = if menu.y_flipped {
5711 menu.bounds.bottom() - actual_size.height
5712 } else {
5713 menu.bounds.top()
5714 };
5715 let possible_origins = vec![
5716 // left of context menu
5717 point(
5718 menu.bounds.left() - actual_size.width - HOVER_POPOVER_GAP,
5719 y_for_horizontal_positioning,
5720 ),
5721 // right of context menu
5722 point(
5723 menu.bounds.right() + HOVER_POPOVER_GAP,
5724 y_for_horizontal_positioning,
5725 ),
5726 // top of context menu
5727 point(
5728 menu.bounds.left(),
5729 menu.bounds.top() - actual_size.height - HOVER_POPOVER_GAP,
5730 ),
5731 // bottom of context menu
5732 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5733 ];
5734 possible_origins
5735 .into_iter()
5736 .find(|&origin| Bounds::new(origin, actual_size).is_contained_within(hitbox))
5737 });
5738 origin_surrounding_menu.unwrap_or_else(|| {
5739 // fallback to existing above/below cursor logic
5740 // this might overlap menu or overflow in rare case
5741 if popover_bounds_above.is_contained_within(hitbox) {
5742 popover_bounds_above.origin
5743 } else {
5744 popover_bounds_below.origin
5745 }
5746 })
5747 };
5748
5749 window.defer_draw(element, final_origin, 2);
5750 }
5751
5752 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5753 window.paint_layer(layout.hitbox.bounds, |window| {
5754 let scroll_top = layout.position_map.snapshot.scroll_position().y;
5755 let gutter_bg = cx.theme().colors().editor_gutter_background;
5756 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
5757 window.paint_quad(fill(
5758 layout.position_map.text_hitbox.bounds,
5759 self.style.background,
5760 ));
5761
5762 if matches!(
5763 layout.mode,
5764 EditorMode::Full { .. } | EditorMode::Minimap { .. }
5765 ) {
5766 let show_active_line_background = match layout.mode {
5767 EditorMode::Full {
5768 show_active_line_background,
5769 ..
5770 } => show_active_line_background,
5771 EditorMode::Minimap { .. } => true,
5772 _ => false,
5773 };
5774 let mut active_rows = layout.active_rows.iter().peekable();
5775 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
5776 let mut end_row = start_row.0;
5777 while active_rows
5778 .peek()
5779 .is_some_and(|(active_row, has_selection)| {
5780 active_row.0 == end_row + 1
5781 && has_selection.selection == contains_non_empty_selection.selection
5782 })
5783 {
5784 active_rows.next().unwrap();
5785 end_row += 1;
5786 }
5787
5788 if show_active_line_background && !contains_non_empty_selection.selection {
5789 let highlight_h_range =
5790 match layout.position_map.snapshot.current_line_highlight {
5791 CurrentLineHighlight::Gutter => Some(Range {
5792 start: layout.hitbox.left(),
5793 end: layout.gutter_hitbox.right(),
5794 }),
5795 CurrentLineHighlight::Line => Some(Range {
5796 start: layout.position_map.text_hitbox.bounds.left(),
5797 end: layout.position_map.text_hitbox.bounds.right(),
5798 }),
5799 CurrentLineHighlight::All => Some(Range {
5800 start: layout.hitbox.left(),
5801 end: layout.hitbox.right(),
5802 }),
5803 CurrentLineHighlight::None => None,
5804 };
5805 if let Some(range) = highlight_h_range {
5806 let active_line_bg = cx.theme().colors().editor_active_line_background;
5807 let bounds = Bounds {
5808 origin: point(
5809 range.start,
5810 layout.hitbox.origin.y
5811 + Pixels::from(
5812 (start_row.as_f64() - scroll_top)
5813 * ScrollPixelOffset::from(
5814 layout.position_map.line_height,
5815 ),
5816 ),
5817 ),
5818 size: size(
5819 range.end - range.start,
5820 layout.position_map.line_height
5821 * (end_row - start_row.0 + 1) as f32,
5822 ),
5823 };
5824 window.paint_quad(fill(bounds, active_line_bg));
5825 }
5826 }
5827 }
5828
5829 let mut paint_highlight = |highlight_row_start: DisplayRow,
5830 highlight_row_end: DisplayRow,
5831 highlight: crate::LineHighlight,
5832 edges| {
5833 let mut origin_x = layout.hitbox.left();
5834 let mut width = layout.hitbox.size.width;
5835 if !highlight.include_gutter {
5836 origin_x += layout.gutter_hitbox.size.width;
5837 width -= layout.gutter_hitbox.size.width;
5838 }
5839
5840 let origin = point(
5841 origin_x,
5842 layout.hitbox.origin.y
5843 + Pixels::from(
5844 (highlight_row_start.as_f64() - scroll_top)
5845 * ScrollPixelOffset::from(layout.position_map.line_height),
5846 ),
5847 );
5848 let size = size(
5849 width,
5850 layout.position_map.line_height
5851 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
5852 );
5853 let mut quad = fill(Bounds { origin, size }, highlight.background);
5854 if let Some(border_color) = highlight.border {
5855 quad.border_color = border_color;
5856 quad.border_widths = edges
5857 }
5858 window.paint_quad(quad);
5859 };
5860
5861 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
5862 None;
5863 for (&new_row, &new_background) in &layout.highlighted_rows {
5864 match &mut current_paint {
5865 &mut Some((current_background, ref mut current_range, mut edges)) => {
5866 let new_range_started = current_background != new_background
5867 || current_range.end.next_row() != new_row;
5868 if new_range_started {
5869 if current_range.end.next_row() == new_row {
5870 edges.bottom = px(0.);
5871 };
5872 paint_highlight(
5873 current_range.start,
5874 current_range.end,
5875 current_background,
5876 edges,
5877 );
5878 let edges = Edges {
5879 top: if current_range.end.next_row() != new_row {
5880 px(1.)
5881 } else {
5882 px(0.)
5883 },
5884 bottom: px(1.),
5885 ..Default::default()
5886 };
5887 current_paint = Some((new_background, new_row..new_row, edges));
5888 continue;
5889 } else {
5890 current_range.end = current_range.end.next_row();
5891 }
5892 }
5893 None => {
5894 let edges = Edges {
5895 top: px(1.),
5896 bottom: px(1.),
5897 ..Default::default()
5898 };
5899 current_paint = Some((new_background, new_row..new_row, edges))
5900 }
5901 };
5902 }
5903 if let Some((color, range, edges)) = current_paint {
5904 paint_highlight(range.start, range.end, color, edges);
5905 }
5906
5907 for (guide_x, active) in layout.wrap_guides.iter() {
5908 let color = if *active {
5909 cx.theme().colors().editor_active_wrap_guide
5910 } else {
5911 cx.theme().colors().editor_wrap_guide
5912 };
5913 window.paint_quad(fill(
5914 Bounds {
5915 origin: point(*guide_x, layout.position_map.text_hitbox.origin.y),
5916 size: size(px(1.), layout.position_map.text_hitbox.size.height),
5917 },
5918 color,
5919 ));
5920 }
5921 }
5922 })
5923 }
5924
5925 fn paint_indent_guides(
5926 &mut self,
5927 layout: &mut EditorLayout,
5928 window: &mut Window,
5929 cx: &mut App,
5930 ) {
5931 let Some(indent_guides) = &layout.indent_guides else {
5932 return;
5933 };
5934
5935 let faded_color = |color: Hsla, alpha: f32| {
5936 let mut faded = color;
5937 faded.a = alpha;
5938 faded
5939 };
5940
5941 for indent_guide in indent_guides {
5942 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
5943 let settings = &indent_guide.settings;
5944
5945 // TODO fixed for now, expose them through themes later
5946 const INDENT_AWARE_ALPHA: f32 = 0.2;
5947 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
5948 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
5949 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
5950
5951 let line_color = match (settings.coloring, indent_guide.active) {
5952 (IndentGuideColoring::Disabled, _) => None,
5953 (IndentGuideColoring::Fixed, false) => {
5954 Some(cx.theme().colors().editor_indent_guide)
5955 }
5956 (IndentGuideColoring::Fixed, true) => {
5957 Some(cx.theme().colors().editor_indent_guide_active)
5958 }
5959 (IndentGuideColoring::IndentAware, false) => {
5960 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
5961 }
5962 (IndentGuideColoring::IndentAware, true) => {
5963 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
5964 }
5965 };
5966
5967 let background_color = match (settings.background_coloring, indent_guide.active) {
5968 (IndentGuideBackgroundColoring::Disabled, _) => None,
5969 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
5970 indent_accent_colors,
5971 INDENT_AWARE_BACKGROUND_ALPHA,
5972 )),
5973 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
5974 indent_accent_colors,
5975 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
5976 )),
5977 };
5978
5979 let requested_line_width = if indent_guide.active {
5980 settings.active_line_width
5981 } else {
5982 settings.line_width
5983 }
5984 .clamp(1, 10);
5985 let mut line_indicator_width = 0.;
5986 if let Some(color) = line_color {
5987 window.paint_quad(fill(
5988 Bounds {
5989 origin: indent_guide.origin,
5990 size: size(px(requested_line_width as f32), indent_guide.length),
5991 },
5992 color,
5993 ));
5994 line_indicator_width = requested_line_width as f32;
5995 }
5996
5997 if let Some(color) = background_color {
5998 let width = indent_guide.single_indent_width - px(line_indicator_width);
5999 window.paint_quad(fill(
6000 Bounds {
6001 origin: point(
6002 indent_guide.origin.x + px(line_indicator_width),
6003 indent_guide.origin.y,
6004 ),
6005 size: size(width, indent_guide.length),
6006 },
6007 color,
6008 ));
6009 }
6010 }
6011 }
6012
6013 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6014 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
6015
6016 let line_height = layout.position_map.line_height;
6017 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
6018
6019 for line_layout in layout.line_numbers.values() {
6020 for LineNumberSegment {
6021 shaped_line,
6022 hitbox,
6023 } in &line_layout.segments
6024 {
6025 let Some(hitbox) = hitbox else {
6026 continue;
6027 };
6028
6029 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
6030 let color = cx.theme().colors().editor_hover_line_number;
6031
6032 let line = self.shape_line_number(shaped_line.text.clone(), color, window);
6033 line.paint(
6034 hitbox.origin,
6035 line_height,
6036 TextAlign::Left,
6037 None,
6038 window,
6039 cx,
6040 )
6041 .log_err()
6042 } else {
6043 shaped_line
6044 .paint(
6045 hitbox.origin,
6046 line_height,
6047 TextAlign::Left,
6048 None,
6049 window,
6050 cx,
6051 )
6052 .log_err()
6053 }) else {
6054 continue;
6055 };
6056
6057 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
6058 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
6059 if is_singleton {
6060 window.set_cursor_style(CursorStyle::IBeam, hitbox);
6061 } else {
6062 window.set_cursor_style(CursorStyle::PointingHand, hitbox);
6063 }
6064 }
6065 }
6066 }
6067
6068 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6069 if layout.display_hunks.is_empty() {
6070 return;
6071 }
6072
6073 let line_height = layout.position_map.line_height;
6074 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6075 for (hunk, hitbox) in &layout.display_hunks {
6076 let hunk_to_paint = match hunk {
6077 DisplayDiffHunk::Folded { .. } => {
6078 let hunk_bounds = Self::diff_hunk_bounds(
6079 &layout.position_map.snapshot,
6080 line_height,
6081 layout.gutter_hitbox.bounds,
6082 hunk,
6083 );
6084 Some((
6085 hunk_bounds,
6086 cx.theme().colors().version_control_modified,
6087 Corners::all(px(0.)),
6088 DiffHunkStatus::modified_none(),
6089 ))
6090 }
6091 DisplayDiffHunk::Unfolded {
6092 status,
6093 display_row_range,
6094 ..
6095 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
6096 DiffHunkStatusKind::Added => (
6097 hunk_hitbox.bounds,
6098 cx.theme().colors().version_control_added,
6099 Corners::all(px(0.)),
6100 *status,
6101 ),
6102 DiffHunkStatusKind::Modified => (
6103 hunk_hitbox.bounds,
6104 cx.theme().colors().version_control_modified,
6105 Corners::all(px(0.)),
6106 *status,
6107 ),
6108 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
6109 hunk_hitbox.bounds,
6110 cx.theme().colors().version_control_deleted,
6111 Corners::all(px(0.)),
6112 *status,
6113 ),
6114 DiffHunkStatusKind::Deleted => (
6115 Bounds::new(
6116 point(
6117 hunk_hitbox.origin.x - hunk_hitbox.size.width,
6118 hunk_hitbox.origin.y,
6119 ),
6120 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
6121 ),
6122 cx.theme().colors().version_control_deleted,
6123 Corners::all(1. * line_height),
6124 *status,
6125 ),
6126 }),
6127 };
6128
6129 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
6130 // Flatten the background color with the editor color to prevent
6131 // elements below transparent hunks from showing through
6132 let flattened_background_color = cx
6133 .theme()
6134 .colors()
6135 .editor_background
6136 .blend(background_color);
6137
6138 if !Self::diff_hunk_hollow(status, cx) {
6139 window.paint_quad(quad(
6140 hunk_bounds,
6141 corner_radii,
6142 flattened_background_color,
6143 Edges::default(),
6144 transparent_black(),
6145 BorderStyle::default(),
6146 ));
6147 } else {
6148 let flattened_unstaged_background_color = cx
6149 .theme()
6150 .colors()
6151 .editor_background
6152 .blend(background_color.opacity(0.3));
6153
6154 window.paint_quad(quad(
6155 hunk_bounds,
6156 corner_radii,
6157 flattened_unstaged_background_color,
6158 Edges::all(px(1.0)),
6159 flattened_background_color,
6160 BorderStyle::Solid,
6161 ));
6162 }
6163 }
6164 }
6165 });
6166 }
6167
6168 fn gutter_strip_width(line_height: Pixels) -> Pixels {
6169 (0.275 * line_height).floor()
6170 }
6171
6172 fn diff_hunk_bounds(
6173 snapshot: &EditorSnapshot,
6174 line_height: Pixels,
6175 gutter_bounds: Bounds<Pixels>,
6176 hunk: &DisplayDiffHunk,
6177 ) -> Bounds<Pixels> {
6178 let scroll_position = snapshot.scroll_position();
6179 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
6180 let gutter_strip_width = Self::gutter_strip_width(line_height);
6181
6182 match hunk {
6183 DisplayDiffHunk::Folded { display_row, .. } => {
6184 let start_y = (display_row.as_f64() * ScrollPixelOffset::from(line_height)
6185 - scroll_top)
6186 .into();
6187 let end_y = start_y + line_height;
6188 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6189 let highlight_size = size(gutter_strip_width, end_y - start_y);
6190 Bounds::new(highlight_origin, highlight_size)
6191 }
6192 DisplayDiffHunk::Unfolded {
6193 display_row_range,
6194 status,
6195 ..
6196 } => {
6197 if status.is_deleted() && display_row_range.is_empty() {
6198 let row = display_row_range.start;
6199
6200 let offset = ScrollPixelOffset::from(line_height / 2.);
6201 let start_y =
6202 (row.as_f64() * ScrollPixelOffset::from(line_height) - offset - scroll_top)
6203 .into();
6204 let end_y = start_y + line_height;
6205
6206 let width = (0.35 * line_height).floor();
6207 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6208 let highlight_size = size(width, end_y - start_y);
6209 Bounds::new(highlight_origin, highlight_size)
6210 } else {
6211 let start_row = display_row_range.start;
6212 let end_row = display_row_range.end;
6213 // If we're in a multibuffer, row range span might include an
6214 // excerpt header, so if we were to draw the marker straight away,
6215 // the hunk might include the rows of that header.
6216 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
6217 // Instead, we simply check whether the range we're dealing with includes
6218 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
6219 let end_row_in_current_excerpt = snapshot
6220 .blocks_in_range(start_row..end_row)
6221 .find_map(|(start_row, block)| {
6222 if matches!(
6223 block,
6224 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
6225 ) {
6226 Some(start_row)
6227 } else {
6228 None
6229 }
6230 })
6231 .unwrap_or(end_row);
6232
6233 let start_y = (start_row.as_f64() * ScrollPixelOffset::from(line_height)
6234 - scroll_top)
6235 .into();
6236 let end_y = Pixels::from(
6237 end_row_in_current_excerpt.as_f64() * ScrollPixelOffset::from(line_height)
6238 - scroll_top,
6239 );
6240
6241 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6242 let highlight_size = size(gutter_strip_width, end_y - start_y);
6243 Bounds::new(highlight_origin, highlight_size)
6244 }
6245 }
6246 }
6247 }
6248
6249 fn paint_gutter_indicators(
6250 &self,
6251 layout: &mut EditorLayout,
6252 window: &mut Window,
6253 cx: &mut App,
6254 ) {
6255 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6256 window.with_element_namespace("crease_toggles", |window| {
6257 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
6258 crease_toggle.paint(window, cx);
6259 }
6260 });
6261
6262 window.with_element_namespace("expand_toggles", |window| {
6263 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
6264 expand_toggle.paint(window, cx);
6265 }
6266 });
6267
6268 for breakpoint in layout.breakpoints.iter_mut() {
6269 breakpoint.paint(window, cx);
6270 }
6271
6272 for test_indicator in layout.test_indicators.iter_mut() {
6273 test_indicator.paint(window, cx);
6274 }
6275
6276 if let Some(diff_review_button) = layout.diff_review_button.as_mut() {
6277 diff_review_button.paint(window, cx);
6278 }
6279 });
6280 }
6281
6282 fn paint_gutter_highlights(
6283 &self,
6284 layout: &mut EditorLayout,
6285 window: &mut Window,
6286 cx: &mut App,
6287 ) {
6288 for (_, hunk_hitbox) in &layout.display_hunks {
6289 if let Some(hunk_hitbox) = hunk_hitbox
6290 && !self
6291 .editor
6292 .read(cx)
6293 .buffer()
6294 .read(cx)
6295 .all_diff_hunks_expanded()
6296 {
6297 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
6298 }
6299 }
6300
6301 let show_git_gutter = layout
6302 .position_map
6303 .snapshot
6304 .show_git_diff_gutter
6305 .unwrap_or_else(|| {
6306 matches!(
6307 ProjectSettings::get_global(cx).git.git_gutter,
6308 GitGutterSetting::TrackedFiles
6309 )
6310 });
6311 if show_git_gutter && self.split_side.is_none() {
6312 Self::paint_gutter_diff_hunks(layout, window, cx)
6313 }
6314
6315 let highlight_width = 0.275 * layout.position_map.line_height;
6316 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
6317 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6318 for (range, color) in &layout.highlighted_gutter_ranges {
6319 let start_row = if range.start.row() < layout.visible_display_row_range.start {
6320 layout.visible_display_row_range.start - DisplayRow(1)
6321 } else {
6322 range.start.row()
6323 };
6324 let end_row = if range.end.row() > layout.visible_display_row_range.end {
6325 layout.visible_display_row_range.end + DisplayRow(1)
6326 } else {
6327 range.end.row()
6328 };
6329
6330 let start_y = layout.gutter_hitbox.top()
6331 + Pixels::from(
6332 start_row.0 as f64
6333 * ScrollPixelOffset::from(layout.position_map.line_height)
6334 - layout.position_map.scroll_pixel_position.y,
6335 );
6336 let end_y = layout.gutter_hitbox.top()
6337 + Pixels::from(
6338 (end_row.0 + 1) as f64
6339 * ScrollPixelOffset::from(layout.position_map.line_height)
6340 - layout.position_map.scroll_pixel_position.y,
6341 );
6342 let bounds = Bounds::from_corners(
6343 point(layout.gutter_hitbox.left(), start_y),
6344 point(layout.gutter_hitbox.left() + highlight_width, end_y),
6345 );
6346 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
6347 }
6348 });
6349 }
6350
6351 fn paint_blamed_display_rows(
6352 &self,
6353 layout: &mut EditorLayout,
6354 window: &mut Window,
6355 cx: &mut App,
6356 ) {
6357 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
6358 return;
6359 };
6360
6361 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6362 for mut blame_element in blamed_display_rows.into_iter() {
6363 blame_element.paint(window, cx);
6364 }
6365 })
6366 }
6367
6368 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6369 window.with_content_mask(
6370 Some(ContentMask {
6371 bounds: layout.position_map.text_hitbox.bounds,
6372 }),
6373 |window| {
6374 let editor = self.editor.read(cx);
6375 if editor.mouse_cursor_hidden {
6376 window.set_window_cursor_style(CursorStyle::None);
6377 } else if let SelectionDragState::ReadyToDrag {
6378 mouse_down_time, ..
6379 } = &editor.selection_drag_state
6380 {
6381 let drag_and_drop_delay = Duration::from_millis(
6382 EditorSettings::get_global(cx)
6383 .drag_and_drop_selection
6384 .delay
6385 .0,
6386 );
6387 if mouse_down_time.elapsed() >= drag_and_drop_delay {
6388 window.set_cursor_style(
6389 CursorStyle::DragCopy,
6390 &layout.position_map.text_hitbox,
6391 );
6392 }
6393 } else if matches!(
6394 editor.selection_drag_state,
6395 SelectionDragState::Dragging { .. }
6396 ) {
6397 window
6398 .set_cursor_style(CursorStyle::DragCopy, &layout.position_map.text_hitbox);
6399 } else if editor
6400 .hovered_link_state
6401 .as_ref()
6402 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
6403 {
6404 window.set_cursor_style(
6405 CursorStyle::PointingHand,
6406 &layout.position_map.text_hitbox,
6407 );
6408 } else {
6409 window.set_cursor_style(CursorStyle::IBeam, &layout.position_map.text_hitbox);
6410 };
6411
6412 self.paint_lines_background(layout, window, cx);
6413 let invisible_display_ranges = self.paint_highlights(layout, window, cx);
6414 self.paint_document_colors(layout, window);
6415 self.paint_lines(&invisible_display_ranges, layout, window, cx);
6416 self.paint_redactions(layout, window);
6417 self.paint_cursors(layout, window, cx);
6418 self.paint_inline_diagnostics(layout, window, cx);
6419 self.paint_inline_blame(layout, window, cx);
6420 self.paint_inline_code_actions(layout, window, cx);
6421 self.paint_diff_hunk_controls(layout, window, cx);
6422 window.with_element_namespace("crease_trailers", |window| {
6423 for trailer in layout.crease_trailers.iter_mut().flatten() {
6424 trailer.element.paint(window, cx);
6425 }
6426 });
6427 },
6428 )
6429 }
6430
6431 fn paint_highlights(
6432 &mut self,
6433 layout: &mut EditorLayout,
6434 window: &mut Window,
6435 cx: &mut App,
6436 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
6437 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6438 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
6439 let line_end_overshoot = 0.15 * layout.position_map.line_height;
6440 for (range, color) in &layout.highlighted_ranges {
6441 self.paint_highlighted_range(
6442 range.clone(),
6443 true,
6444 *color,
6445 Pixels::ZERO,
6446 line_end_overshoot,
6447 layout,
6448 window,
6449 );
6450 }
6451
6452 let corner_radius = if EditorSettings::get_global(cx).rounded_selection {
6453 0.15 * layout.position_map.line_height
6454 } else {
6455 Pixels::ZERO
6456 };
6457
6458 for (player_color, selections) in &layout.selections {
6459 for selection in selections.iter() {
6460 self.paint_highlighted_range(
6461 selection.range.clone(),
6462 true,
6463 player_color.selection,
6464 corner_radius,
6465 corner_radius * 2.,
6466 layout,
6467 window,
6468 );
6469
6470 if selection.is_local && !selection.range.is_empty() {
6471 invisible_display_ranges.push(selection.range.clone());
6472 }
6473 }
6474 }
6475 invisible_display_ranges
6476 })
6477 }
6478
6479 fn paint_lines(
6480 &mut self,
6481 invisible_display_ranges: &[Range<DisplayPoint>],
6482 layout: &mut EditorLayout,
6483 window: &mut Window,
6484 cx: &mut App,
6485 ) {
6486 let whitespace_setting = self
6487 .editor
6488 .read(cx)
6489 .buffer
6490 .read(cx)
6491 .language_settings(cx)
6492 .show_whitespaces;
6493
6494 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6495 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6496 line_with_invisibles.draw(
6497 layout,
6498 row,
6499 layout.content_origin,
6500 whitespace_setting,
6501 invisible_display_ranges,
6502 window,
6503 cx,
6504 )
6505 }
6506
6507 for line_element in &mut layout.line_elements {
6508 line_element.paint(window, cx);
6509 }
6510 }
6511
6512 fn paint_sticky_headers(
6513 &mut self,
6514 layout: &mut EditorLayout,
6515 window: &mut Window,
6516 cx: &mut App,
6517 ) {
6518 let Some(mut sticky_headers) = layout.sticky_headers.take() else {
6519 return;
6520 };
6521
6522 if sticky_headers.lines.is_empty() {
6523 layout.sticky_headers = Some(sticky_headers);
6524 return;
6525 }
6526
6527 let whitespace_setting = self
6528 .editor
6529 .read(cx)
6530 .buffer
6531 .read(cx)
6532 .language_settings(cx)
6533 .show_whitespaces;
6534 sticky_headers.paint(layout, whitespace_setting, window, cx);
6535
6536 let sticky_header_hitboxes: Vec<Hitbox> = sticky_headers
6537 .lines
6538 .iter()
6539 .map(|line| line.hitbox.clone())
6540 .collect();
6541 let hovered_hitbox = sticky_header_hitboxes
6542 .iter()
6543 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6544
6545 window.on_mouse_event(move |_: &MouseMoveEvent, phase, window, _cx| {
6546 if !phase.bubble() {
6547 return;
6548 }
6549
6550 let current_hover = sticky_header_hitboxes
6551 .iter()
6552 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6553 if hovered_hitbox != current_hover {
6554 window.refresh();
6555 }
6556 });
6557
6558 for (line_index, line) in sticky_headers.lines.iter().enumerate() {
6559 let editor = self.editor.clone();
6560 let hitbox = line.hitbox.clone();
6561 let target_anchor = line.target_anchor;
6562 window.on_mouse_event(move |event: &MouseDownEvent, phase, window, cx| {
6563 if !phase.bubble() {
6564 return;
6565 }
6566
6567 if event.button == MouseButton::Left && hitbox.is_hovered(window) {
6568 editor.update(cx, |editor, cx| {
6569 editor.change_selections(
6570 SelectionEffects::scroll(Autoscroll::top_relative(line_index)),
6571 window,
6572 cx,
6573 |selections| selections.select_ranges([target_anchor..target_anchor]),
6574 );
6575 cx.stop_propagation();
6576 });
6577 }
6578 });
6579 }
6580
6581 let text_bounds = layout.position_map.text_hitbox.bounds;
6582 let border_top = text_bounds.top()
6583 + sticky_headers.lines.last().unwrap().offset
6584 + layout.position_map.line_height;
6585 let separator_height = px(1.);
6586 let border_bounds = Bounds::from_corners(
6587 point(layout.gutter_hitbox.bounds.left(), border_top),
6588 point(text_bounds.right(), border_top + separator_height),
6589 );
6590 window.paint_quad(fill(border_bounds, cx.theme().colors().border_variant));
6591
6592 layout.sticky_headers = Some(sticky_headers);
6593 }
6594
6595 fn paint_lines_background(
6596 &mut self,
6597 layout: &mut EditorLayout,
6598 window: &mut Window,
6599 cx: &mut App,
6600 ) {
6601 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6602 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6603 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
6604 }
6605 }
6606
6607 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
6608 if layout.redacted_ranges.is_empty() {
6609 return;
6610 }
6611
6612 let line_end_overshoot = layout.line_end_overshoot();
6613
6614 // A softer than perfect black
6615 let redaction_color = gpui::rgb(0x0e1111);
6616
6617 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6618 for range in layout.redacted_ranges.iter() {
6619 self.paint_highlighted_range(
6620 range.clone(),
6621 true,
6622 redaction_color.into(),
6623 Pixels::ZERO,
6624 line_end_overshoot,
6625 layout,
6626 window,
6627 );
6628 }
6629 });
6630 }
6631
6632 fn paint_document_colors(&self, layout: &mut EditorLayout, window: &mut Window) {
6633 let Some((colors_render_mode, image_colors)) = &layout.document_colors else {
6634 return;
6635 };
6636 if image_colors.is_empty()
6637 || colors_render_mode == &DocumentColorsRenderMode::None
6638 || colors_render_mode == &DocumentColorsRenderMode::Inlay
6639 {
6640 return;
6641 }
6642
6643 let line_end_overshoot = layout.line_end_overshoot();
6644
6645 for (range, color) in image_colors {
6646 match colors_render_mode {
6647 DocumentColorsRenderMode::Inlay | DocumentColorsRenderMode::None => return,
6648 DocumentColorsRenderMode::Background => {
6649 self.paint_highlighted_range(
6650 range.clone(),
6651 true,
6652 *color,
6653 Pixels::ZERO,
6654 line_end_overshoot,
6655 layout,
6656 window,
6657 );
6658 }
6659 DocumentColorsRenderMode::Border => {
6660 self.paint_highlighted_range(
6661 range.clone(),
6662 false,
6663 *color,
6664 Pixels::ZERO,
6665 line_end_overshoot,
6666 layout,
6667 window,
6668 );
6669 }
6670 }
6671 }
6672 }
6673
6674 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6675 for cursor in &mut layout.visible_cursors {
6676 cursor.paint(layout.content_origin, window, cx);
6677 }
6678 }
6679
6680 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6681 let Some(scrollbars_layout) = layout.scrollbars_layout.take() else {
6682 return;
6683 };
6684 let any_scrollbar_dragged = self.editor.read(cx).scroll_manager.any_scrollbar_dragged();
6685
6686 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
6687 let hitbox = &scrollbar_layout.hitbox;
6688 if scrollbars_layout.visible {
6689 let scrollbar_edges = match axis {
6690 ScrollbarAxis::Horizontal => Edges {
6691 top: Pixels::ZERO,
6692 right: Pixels::ZERO,
6693 bottom: Pixels::ZERO,
6694 left: Pixels::ZERO,
6695 },
6696 ScrollbarAxis::Vertical => Edges {
6697 top: Pixels::ZERO,
6698 right: Pixels::ZERO,
6699 bottom: Pixels::ZERO,
6700 left: ScrollbarLayout::BORDER_WIDTH,
6701 },
6702 };
6703
6704 window.paint_layer(hitbox.bounds, |window| {
6705 window.paint_quad(quad(
6706 hitbox.bounds,
6707 Corners::default(),
6708 cx.theme().colors().scrollbar_track_background,
6709 scrollbar_edges,
6710 cx.theme().colors().scrollbar_track_border,
6711 BorderStyle::Solid,
6712 ));
6713
6714 if axis == ScrollbarAxis::Vertical {
6715 let fast_markers =
6716 self.collect_fast_scrollbar_markers(layout, scrollbar_layout, cx);
6717 // Refresh slow scrollbar markers in the background. Below, we
6718 // paint whatever markers have already been computed.
6719 self.refresh_slow_scrollbar_markers(layout, scrollbar_layout, window, cx);
6720
6721 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
6722 for marker in markers.iter().chain(&fast_markers) {
6723 let mut marker = marker.clone();
6724 marker.bounds.origin += hitbox.origin;
6725 window.paint_quad(marker);
6726 }
6727 }
6728
6729 if let Some(thumb_bounds) = scrollbar_layout.thumb_bounds {
6730 let scrollbar_thumb_color = match scrollbar_layout.thumb_state {
6731 ScrollbarThumbState::Dragging => {
6732 cx.theme().colors().scrollbar_thumb_active_background
6733 }
6734 ScrollbarThumbState::Hovered => {
6735 cx.theme().colors().scrollbar_thumb_hover_background
6736 }
6737 ScrollbarThumbState::Idle => {
6738 cx.theme().colors().scrollbar_thumb_background
6739 }
6740 };
6741 window.paint_quad(quad(
6742 thumb_bounds,
6743 Corners::default(),
6744 scrollbar_thumb_color,
6745 scrollbar_edges,
6746 cx.theme().colors().scrollbar_thumb_border,
6747 BorderStyle::Solid,
6748 ));
6749
6750 if any_scrollbar_dragged {
6751 window.set_window_cursor_style(CursorStyle::Arrow);
6752 } else {
6753 window.set_cursor_style(CursorStyle::Arrow, hitbox);
6754 }
6755 }
6756 })
6757 }
6758 }
6759
6760 window.on_mouse_event({
6761 let editor = self.editor.clone();
6762 let scrollbars_layout = scrollbars_layout.clone();
6763
6764 let mut mouse_position = window.mouse_position();
6765 move |event: &MouseMoveEvent, phase, window, cx| {
6766 if phase == DispatchPhase::Capture {
6767 return;
6768 }
6769
6770 editor.update(cx, |editor, cx| {
6771 if let Some((scrollbar_layout, axis)) = event
6772 .pressed_button
6773 .filter(|button| *button == MouseButton::Left)
6774 .and(editor.scroll_manager.dragging_scrollbar_axis())
6775 .and_then(|axis| {
6776 scrollbars_layout
6777 .iter_scrollbars()
6778 .find(|(_, a)| *a == axis)
6779 })
6780 {
6781 let ScrollbarLayout {
6782 hitbox,
6783 text_unit_size,
6784 ..
6785 } = scrollbar_layout;
6786
6787 let old_position = mouse_position.along(axis);
6788 let new_position = event.position.along(axis);
6789 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
6790 .contains(&old_position)
6791 {
6792 let position = editor.scroll_position(cx).apply_along(axis, |p| {
6793 (p + ScrollOffset::from(
6794 (new_position - old_position) / *text_unit_size,
6795 ))
6796 .max(0.)
6797 });
6798 editor.set_scroll_position(position, window, cx);
6799 }
6800
6801 editor.scroll_manager.show_scrollbars(window, cx);
6802 cx.stop_propagation();
6803 } else if let Some((layout, axis)) = scrollbars_layout
6804 .get_hovered_axis(window)
6805 .filter(|_| !event.dragging())
6806 {
6807 if layout.thumb_hovered(&event.position) {
6808 editor
6809 .scroll_manager
6810 .set_hovered_scroll_thumb_axis(axis, cx);
6811 } else {
6812 editor.scroll_manager.reset_scrollbar_state(cx);
6813 }
6814
6815 editor.scroll_manager.show_scrollbars(window, cx);
6816 } else {
6817 editor.scroll_manager.reset_scrollbar_state(cx);
6818 }
6819
6820 mouse_position = event.position;
6821 })
6822 }
6823 });
6824
6825 if any_scrollbar_dragged {
6826 window.on_mouse_event({
6827 let editor = self.editor.clone();
6828 move |_: &MouseUpEvent, phase, window, cx| {
6829 if phase == DispatchPhase::Capture {
6830 return;
6831 }
6832
6833 editor.update(cx, |editor, cx| {
6834 if let Some((_, axis)) = scrollbars_layout.get_hovered_axis(window) {
6835 editor
6836 .scroll_manager
6837 .set_hovered_scroll_thumb_axis(axis, cx);
6838 } else {
6839 editor.scroll_manager.reset_scrollbar_state(cx);
6840 }
6841 cx.stop_propagation();
6842 });
6843 }
6844 });
6845 } else {
6846 window.on_mouse_event({
6847 let editor = self.editor.clone();
6848
6849 move |event: &MouseDownEvent, phase, window, cx| {
6850 if phase == DispatchPhase::Capture {
6851 return;
6852 }
6853 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
6854 else {
6855 return;
6856 };
6857
6858 let ScrollbarLayout {
6859 hitbox,
6860 visible_range,
6861 text_unit_size,
6862 thumb_bounds,
6863 ..
6864 } = scrollbar_layout;
6865
6866 let Some(thumb_bounds) = thumb_bounds else {
6867 return;
6868 };
6869
6870 editor.update(cx, |editor, cx| {
6871 editor
6872 .scroll_manager
6873 .set_dragged_scroll_thumb_axis(axis, cx);
6874
6875 let event_position = event.position.along(axis);
6876
6877 if event_position < thumb_bounds.origin.along(axis)
6878 || thumb_bounds.bottom_right().along(axis) < event_position
6879 {
6880 let center_position = ((event_position - hitbox.origin.along(axis))
6881 / *text_unit_size)
6882 .round() as u32;
6883 let start_position = center_position.saturating_sub(
6884 (visible_range.end - visible_range.start) as u32 / 2,
6885 );
6886
6887 let position = editor
6888 .scroll_position(cx)
6889 .apply_along(axis, |_| start_position as ScrollOffset);
6890
6891 editor.set_scroll_position(position, window, cx);
6892 } else {
6893 editor.scroll_manager.show_scrollbars(window, cx);
6894 }
6895
6896 cx.stop_propagation();
6897 });
6898 }
6899 });
6900 }
6901 }
6902
6903 fn collect_fast_scrollbar_markers(
6904 &self,
6905 layout: &EditorLayout,
6906 scrollbar_layout: &ScrollbarLayout,
6907 cx: &mut App,
6908 ) -> Vec<PaintQuad> {
6909 const LIMIT: usize = 100;
6910 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
6911 return vec![];
6912 }
6913 let cursor_ranges = layout
6914 .cursors
6915 .iter()
6916 .map(|(point, color)| ColoredRange {
6917 start: point.row(),
6918 end: point.row(),
6919 color: *color,
6920 })
6921 .collect_vec();
6922 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
6923 }
6924
6925 fn refresh_slow_scrollbar_markers(
6926 &self,
6927 layout: &EditorLayout,
6928 scrollbar_layout: &ScrollbarLayout,
6929 window: &mut Window,
6930 cx: &mut App,
6931 ) {
6932 self.editor.update(cx, |editor, cx| {
6933 if editor.buffer_kind(cx) != ItemBufferKind::Singleton
6934 || !editor
6935 .scrollbar_marker_state
6936 .should_refresh(scrollbar_layout.hitbox.size)
6937 {
6938 return;
6939 }
6940
6941 let scrollbar_layout = scrollbar_layout.clone();
6942 let background_highlights = editor.background_highlights.clone();
6943 let snapshot = layout.position_map.snapshot.clone();
6944 let theme = cx.theme().clone();
6945 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
6946
6947 editor.scrollbar_marker_state.dirty = false;
6948 editor.scrollbar_marker_state.pending_refresh =
6949 Some(cx.spawn_in(window, async move |editor, cx| {
6950 let scrollbar_size = scrollbar_layout.hitbox.size;
6951 let scrollbar_markers = cx
6952 .background_spawn(async move {
6953 let max_point = snapshot.display_snapshot.buffer_snapshot().max_point();
6954 let mut marker_quads = Vec::new();
6955 if scrollbar_settings.git_diff {
6956 let marker_row_ranges =
6957 snapshot.buffer_snapshot().diff_hunks().map(|hunk| {
6958 let start_display_row =
6959 MultiBufferPoint::new(hunk.row_range.start.0, 0)
6960 .to_display_point(&snapshot.display_snapshot)
6961 .row();
6962 let mut end_display_row =
6963 MultiBufferPoint::new(hunk.row_range.end.0, 0)
6964 .to_display_point(&snapshot.display_snapshot)
6965 .row();
6966 if end_display_row != start_display_row {
6967 end_display_row.0 -= 1;
6968 }
6969 let color = match &hunk.status().kind {
6970 DiffHunkStatusKind::Added => {
6971 theme.colors().version_control_added
6972 }
6973 DiffHunkStatusKind::Modified => {
6974 theme.colors().version_control_modified
6975 }
6976 DiffHunkStatusKind::Deleted => {
6977 theme.colors().version_control_deleted
6978 }
6979 };
6980 ColoredRange {
6981 start: start_display_row,
6982 end: end_display_row,
6983 color,
6984 }
6985 });
6986
6987 marker_quads.extend(
6988 scrollbar_layout
6989 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
6990 );
6991 }
6992
6993 for (background_highlight_id, (_, background_ranges)) in
6994 background_highlights.iter()
6995 {
6996 let is_search_highlights = *background_highlight_id
6997 == HighlightKey::Type(TypeId::of::<BufferSearchHighlights>());
6998 let is_text_highlights = *background_highlight_id
6999 == HighlightKey::Type(TypeId::of::<SelectedTextHighlight>());
7000 let is_symbol_occurrences = *background_highlight_id
7001 == HighlightKey::Type(TypeId::of::<DocumentHighlightRead>())
7002 || *background_highlight_id
7003 == HighlightKey::Type(
7004 TypeId::of::<DocumentHighlightWrite>(),
7005 );
7006 if (is_search_highlights && scrollbar_settings.search_results)
7007 || (is_text_highlights && scrollbar_settings.selected_text)
7008 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
7009 {
7010 let mut color = theme.status().info;
7011 if is_symbol_occurrences {
7012 color.fade_out(0.5);
7013 }
7014 let marker_row_ranges = background_ranges.iter().map(|range| {
7015 let display_start = range
7016 .start
7017 .to_display_point(&snapshot.display_snapshot);
7018 let display_end =
7019 range.end.to_display_point(&snapshot.display_snapshot);
7020 ColoredRange {
7021 start: display_start.row(),
7022 end: display_end.row(),
7023 color,
7024 }
7025 });
7026 marker_quads.extend(
7027 scrollbar_layout
7028 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
7029 );
7030 }
7031 }
7032
7033 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
7034 let diagnostics = snapshot
7035 .buffer_snapshot()
7036 .diagnostics_in_range::<Point>(Point::zero()..max_point)
7037 // Don't show diagnostics the user doesn't care about
7038 .filter(|diagnostic| {
7039 match (
7040 scrollbar_settings.diagnostics,
7041 diagnostic.diagnostic.severity,
7042 ) {
7043 (ScrollbarDiagnostics::All, _) => true,
7044 (
7045 ScrollbarDiagnostics::Error,
7046 lsp::DiagnosticSeverity::ERROR,
7047 ) => true,
7048 (
7049 ScrollbarDiagnostics::Warning,
7050 lsp::DiagnosticSeverity::ERROR
7051 | lsp::DiagnosticSeverity::WARNING,
7052 ) => true,
7053 (
7054 ScrollbarDiagnostics::Information,
7055 lsp::DiagnosticSeverity::ERROR
7056 | lsp::DiagnosticSeverity::WARNING
7057 | lsp::DiagnosticSeverity::INFORMATION,
7058 ) => true,
7059 (_, _) => false,
7060 }
7061 })
7062 // We want to sort by severity, in order to paint the most severe diagnostics last.
7063 .sorted_by_key(|diagnostic| {
7064 std::cmp::Reverse(diagnostic.diagnostic.severity)
7065 });
7066
7067 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
7068 let start_display = diagnostic
7069 .range
7070 .start
7071 .to_display_point(&snapshot.display_snapshot);
7072 let end_display = diagnostic
7073 .range
7074 .end
7075 .to_display_point(&snapshot.display_snapshot);
7076 let color = match diagnostic.diagnostic.severity {
7077 lsp::DiagnosticSeverity::ERROR => theme.status().error,
7078 lsp::DiagnosticSeverity::WARNING => theme.status().warning,
7079 lsp::DiagnosticSeverity::INFORMATION => theme.status().info,
7080 _ => theme.status().hint,
7081 };
7082 ColoredRange {
7083 start: start_display.row(),
7084 end: end_display.row(),
7085 color,
7086 }
7087 });
7088 marker_quads.extend(
7089 scrollbar_layout
7090 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
7091 );
7092 }
7093
7094 Arc::from(marker_quads)
7095 })
7096 .await;
7097
7098 editor.update(cx, |editor, cx| {
7099 editor.scrollbar_marker_state.markers = scrollbar_markers;
7100 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
7101 editor.scrollbar_marker_state.pending_refresh = None;
7102 cx.notify();
7103 })?;
7104
7105 Ok(())
7106 }));
7107 });
7108 }
7109
7110 fn paint_highlighted_range(
7111 &self,
7112 range: Range<DisplayPoint>,
7113 fill: bool,
7114 color: Hsla,
7115 corner_radius: Pixels,
7116 line_end_overshoot: Pixels,
7117 layout: &EditorLayout,
7118 window: &mut Window,
7119 ) {
7120 let start_row = layout.visible_display_row_range.start;
7121 let end_row = layout.visible_display_row_range.end;
7122 if range.start != range.end {
7123 let row_range = if range.end.column() == 0 {
7124 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
7125 } else {
7126 cmp::max(range.start.row(), start_row)
7127 ..cmp::min(range.end.row().next_row(), end_row)
7128 };
7129
7130 let highlighted_range = HighlightedRange {
7131 color,
7132 line_height: layout.position_map.line_height,
7133 corner_radius,
7134 start_y: layout.content_origin.y
7135 + Pixels::from(
7136 (row_range.start.as_f64() - layout.position_map.scroll_position.y)
7137 * ScrollOffset::from(layout.position_map.line_height),
7138 ),
7139 lines: row_range
7140 .iter_rows()
7141 .map(|row| {
7142 let line_layout =
7143 &layout.position_map.line_layouts[row.minus(start_row) as usize];
7144 let alignment_offset =
7145 line_layout.alignment_offset(layout.text_align, layout.content_width);
7146 HighlightedRangeLine {
7147 start_x: if row == range.start.row() {
7148 layout.content_origin.x
7149 + Pixels::from(
7150 ScrollPixelOffset::from(
7151 line_layout.x_for_index(range.start.column() as usize)
7152 + alignment_offset,
7153 ) - layout.position_map.scroll_pixel_position.x,
7154 )
7155 } else {
7156 layout.content_origin.x + alignment_offset
7157 - Pixels::from(layout.position_map.scroll_pixel_position.x)
7158 },
7159 end_x: if row == range.end.row() {
7160 layout.content_origin.x
7161 + Pixels::from(
7162 ScrollPixelOffset::from(
7163 line_layout.x_for_index(range.end.column() as usize)
7164 + alignment_offset,
7165 ) - layout.position_map.scroll_pixel_position.x,
7166 )
7167 } else {
7168 Pixels::from(
7169 ScrollPixelOffset::from(
7170 layout.content_origin.x
7171 + line_layout.width
7172 + alignment_offset
7173 + line_end_overshoot,
7174 ) - layout.position_map.scroll_pixel_position.x,
7175 )
7176 },
7177 }
7178 })
7179 .collect(),
7180 };
7181
7182 highlighted_range.paint(fill, layout.position_map.text_hitbox.bounds, window);
7183 }
7184 }
7185
7186 fn paint_inline_diagnostics(
7187 &mut self,
7188 layout: &mut EditorLayout,
7189 window: &mut Window,
7190 cx: &mut App,
7191 ) {
7192 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
7193 inline_diagnostic.1.paint(window, cx);
7194 }
7195 }
7196
7197 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7198 if let Some(mut blame_layout) = layout.inline_blame_layout.take() {
7199 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7200 blame_layout.element.paint(window, cx);
7201 })
7202 }
7203 }
7204
7205 fn paint_inline_code_actions(
7206 &mut self,
7207 layout: &mut EditorLayout,
7208 window: &mut Window,
7209 cx: &mut App,
7210 ) {
7211 if let Some(mut inline_code_actions) = layout.inline_code_actions.take() {
7212 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7213 inline_code_actions.paint(window, cx);
7214 })
7215 }
7216 }
7217
7218 fn paint_diff_hunk_controls(
7219 &mut self,
7220 layout: &mut EditorLayout,
7221 window: &mut Window,
7222 cx: &mut App,
7223 ) {
7224 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
7225 diff_hunk_control.paint(window, cx);
7226 }
7227 }
7228
7229 fn paint_minimap(&self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7230 if let Some(mut layout) = layout.minimap.take() {
7231 let minimap_hitbox = layout.thumb_layout.hitbox.clone();
7232 let dragging_minimap = self.editor.read(cx).scroll_manager.is_dragging_minimap();
7233
7234 window.paint_layer(layout.thumb_layout.hitbox.bounds, |window| {
7235 window.with_element_namespace("minimap", |window| {
7236 layout.minimap.paint(window, cx);
7237 if let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds {
7238 let minimap_thumb_color = match layout.thumb_layout.thumb_state {
7239 ScrollbarThumbState::Idle => {
7240 cx.theme().colors().minimap_thumb_background
7241 }
7242 ScrollbarThumbState::Hovered => {
7243 cx.theme().colors().minimap_thumb_hover_background
7244 }
7245 ScrollbarThumbState::Dragging => {
7246 cx.theme().colors().minimap_thumb_active_background
7247 }
7248 };
7249 let minimap_thumb_border = match layout.thumb_border_style {
7250 MinimapThumbBorder::Full => Edges::all(ScrollbarLayout::BORDER_WIDTH),
7251 MinimapThumbBorder::LeftOnly => Edges {
7252 left: ScrollbarLayout::BORDER_WIDTH,
7253 ..Default::default()
7254 },
7255 MinimapThumbBorder::LeftOpen => Edges {
7256 right: ScrollbarLayout::BORDER_WIDTH,
7257 top: ScrollbarLayout::BORDER_WIDTH,
7258 bottom: ScrollbarLayout::BORDER_WIDTH,
7259 ..Default::default()
7260 },
7261 MinimapThumbBorder::RightOpen => Edges {
7262 left: ScrollbarLayout::BORDER_WIDTH,
7263 top: ScrollbarLayout::BORDER_WIDTH,
7264 bottom: ScrollbarLayout::BORDER_WIDTH,
7265 ..Default::default()
7266 },
7267 MinimapThumbBorder::None => Default::default(),
7268 };
7269
7270 window.paint_layer(minimap_hitbox.bounds, |window| {
7271 window.paint_quad(quad(
7272 thumb_bounds,
7273 Corners::default(),
7274 minimap_thumb_color,
7275 minimap_thumb_border,
7276 cx.theme().colors().minimap_thumb_border,
7277 BorderStyle::Solid,
7278 ));
7279 });
7280 }
7281 });
7282 });
7283
7284 if dragging_minimap {
7285 window.set_window_cursor_style(CursorStyle::Arrow);
7286 } else {
7287 window.set_cursor_style(CursorStyle::Arrow, &minimap_hitbox);
7288 }
7289
7290 let minimap_axis = ScrollbarAxis::Vertical;
7291 let pixels_per_line = Pixels::from(
7292 ScrollPixelOffset::from(minimap_hitbox.size.height) / layout.max_scroll_top,
7293 )
7294 .min(layout.minimap_line_height);
7295
7296 let mut mouse_position = window.mouse_position();
7297
7298 window.on_mouse_event({
7299 let editor = self.editor.clone();
7300
7301 let minimap_hitbox = minimap_hitbox.clone();
7302
7303 move |event: &MouseMoveEvent, phase, window, cx| {
7304 if phase == DispatchPhase::Capture {
7305 return;
7306 }
7307
7308 editor.update(cx, |editor, cx| {
7309 if event.pressed_button == Some(MouseButton::Left)
7310 && editor.scroll_manager.is_dragging_minimap()
7311 {
7312 let old_position = mouse_position.along(minimap_axis);
7313 let new_position = event.position.along(minimap_axis);
7314 if (minimap_hitbox.origin.along(minimap_axis)
7315 ..minimap_hitbox.bottom_right().along(minimap_axis))
7316 .contains(&old_position)
7317 {
7318 let position =
7319 editor.scroll_position(cx).apply_along(minimap_axis, |p| {
7320 (p + ScrollPixelOffset::from(
7321 (new_position - old_position) / pixels_per_line,
7322 ))
7323 .max(0.)
7324 });
7325
7326 editor.set_scroll_position(position, window, cx);
7327 }
7328 cx.stop_propagation();
7329 } else if minimap_hitbox.is_hovered(window) {
7330 editor.scroll_manager.set_is_hovering_minimap_thumb(
7331 !event.dragging()
7332 && layout
7333 .thumb_layout
7334 .thumb_bounds
7335 .is_some_and(|bounds| bounds.contains(&event.position)),
7336 cx,
7337 );
7338
7339 // Stop hover events from propagating to the
7340 // underlying editor if the minimap hitbox is hovered
7341 if !event.dragging() {
7342 cx.stop_propagation();
7343 }
7344 } else {
7345 editor.scroll_manager.hide_minimap_thumb(cx);
7346 }
7347 mouse_position = event.position;
7348 });
7349 }
7350 });
7351
7352 if dragging_minimap {
7353 window.on_mouse_event({
7354 let editor = self.editor.clone();
7355 move |event: &MouseUpEvent, phase, window, cx| {
7356 if phase == DispatchPhase::Capture {
7357 return;
7358 }
7359
7360 editor.update(cx, |editor, cx| {
7361 if minimap_hitbox.is_hovered(window) {
7362 editor.scroll_manager.set_is_hovering_minimap_thumb(
7363 layout
7364 .thumb_layout
7365 .thumb_bounds
7366 .is_some_and(|bounds| bounds.contains(&event.position)),
7367 cx,
7368 );
7369 } else {
7370 editor.scroll_manager.hide_minimap_thumb(cx);
7371 }
7372 cx.stop_propagation();
7373 });
7374 }
7375 });
7376 } else {
7377 window.on_mouse_event({
7378 let editor = self.editor.clone();
7379
7380 move |event: &MouseDownEvent, phase, window, cx| {
7381 if phase == DispatchPhase::Capture || !minimap_hitbox.is_hovered(window) {
7382 return;
7383 }
7384
7385 let event_position = event.position;
7386
7387 let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds else {
7388 return;
7389 };
7390
7391 editor.update(cx, |editor, cx| {
7392 if !thumb_bounds.contains(&event_position) {
7393 let click_position =
7394 event_position.relative_to(&minimap_hitbox.origin).y;
7395
7396 let top_position = (click_position
7397 - thumb_bounds.size.along(minimap_axis) / 2.0)
7398 .max(Pixels::ZERO);
7399
7400 let scroll_offset = (layout.minimap_scroll_top
7401 + ScrollPixelOffset::from(
7402 top_position / layout.minimap_line_height,
7403 ))
7404 .min(layout.max_scroll_top);
7405
7406 let scroll_position = editor
7407 .scroll_position(cx)
7408 .apply_along(minimap_axis, |_| scroll_offset);
7409 editor.set_scroll_position(scroll_position, window, cx);
7410 }
7411
7412 editor.scroll_manager.set_is_dragging_minimap(cx);
7413 cx.stop_propagation();
7414 });
7415 }
7416 });
7417 }
7418 }
7419 }
7420
7421 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7422 for mut block in layout.blocks.drain(..) {
7423 if block.overlaps_gutter {
7424 block.element.paint(window, cx);
7425 } else {
7426 let mut bounds = layout.hitbox.bounds;
7427 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
7428 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7429 block.element.paint(window, cx);
7430 })
7431 }
7432 }
7433 }
7434
7435 fn paint_edit_prediction_popover(
7436 &mut self,
7437 layout: &mut EditorLayout,
7438 window: &mut Window,
7439 cx: &mut App,
7440 ) {
7441 if let Some(edit_prediction_popover) = layout.edit_prediction_popover.as_mut() {
7442 edit_prediction_popover.paint(window, cx);
7443 }
7444 }
7445
7446 fn paint_mouse_context_menu(
7447 &mut self,
7448 layout: &mut EditorLayout,
7449 window: &mut Window,
7450 cx: &mut App,
7451 ) {
7452 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
7453 mouse_context_menu.paint(window, cx);
7454 }
7455 }
7456
7457 fn paint_scroll_wheel_listener(
7458 &mut self,
7459 layout: &EditorLayout,
7460 window: &mut Window,
7461 cx: &mut App,
7462 ) {
7463 window.on_mouse_event({
7464 let position_map = layout.position_map.clone();
7465 let editor = self.editor.clone();
7466 let hitbox = layout.hitbox.clone();
7467 let mut delta = ScrollDelta::default();
7468
7469 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
7470 // accidentally turn off their scrolling.
7471 let base_scroll_sensitivity =
7472 EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
7473
7474 // Use a minimum fast_scroll_sensitivity for same reason above
7475 let fast_scroll_sensitivity = EditorSettings::get_global(cx)
7476 .fast_scroll_sensitivity
7477 .max(0.01);
7478
7479 move |event: &ScrollWheelEvent, phase, window, cx| {
7480 let scroll_sensitivity = {
7481 if event.modifiers.alt {
7482 fast_scroll_sensitivity
7483 } else {
7484 base_scroll_sensitivity
7485 }
7486 };
7487
7488 if phase == DispatchPhase::Bubble && hitbox.should_handle_scroll(window) {
7489 delta = delta.coalesce(event.delta);
7490 editor.update(cx, |editor, cx| {
7491 let position_map: &PositionMap = &position_map;
7492
7493 let line_height = position_map.line_height;
7494 let max_glyph_advance = position_map.em_advance;
7495 let (delta, axis) = match delta {
7496 gpui::ScrollDelta::Pixels(mut pixels) => {
7497 //Trackpad
7498 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
7499 (pixels, axis)
7500 }
7501
7502 gpui::ScrollDelta::Lines(lines) => {
7503 //Not trackpad
7504 let pixels =
7505 point(lines.x * max_glyph_advance, lines.y * line_height);
7506 (pixels, None)
7507 }
7508 };
7509
7510 let current_scroll_position = position_map.snapshot.scroll_position();
7511 let x = (current_scroll_position.x
7512 * ScrollPixelOffset::from(max_glyph_advance)
7513 - ScrollPixelOffset::from(delta.x * scroll_sensitivity))
7514 / ScrollPixelOffset::from(max_glyph_advance);
7515 let y = (current_scroll_position.y * ScrollPixelOffset::from(line_height)
7516 - ScrollPixelOffset::from(delta.y * scroll_sensitivity))
7517 / ScrollPixelOffset::from(line_height);
7518 let mut scroll_position =
7519 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
7520 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
7521 if forbid_vertical_scroll {
7522 scroll_position.y = current_scroll_position.y;
7523 }
7524
7525 if scroll_position != current_scroll_position {
7526 editor.scroll(scroll_position, axis, window, cx);
7527 cx.stop_propagation();
7528 } else if y < 0. {
7529 // Due to clamping, we may fail to detect cases of overscroll to the top;
7530 // We want the scroll manager to get an update in such cases and detect the change of direction
7531 // on the next frame.
7532 cx.notify();
7533 }
7534 });
7535 }
7536 }
7537 });
7538 }
7539
7540 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
7541 if layout.mode.is_minimap() {
7542 return;
7543 }
7544
7545 self.paint_scroll_wheel_listener(layout, window, cx);
7546
7547 window.on_mouse_event({
7548 let position_map = layout.position_map.clone();
7549 let editor = self.editor.clone();
7550 let line_numbers = layout.line_numbers.clone();
7551
7552 move |event: &MouseDownEvent, phase, window, cx| {
7553 if phase == DispatchPhase::Bubble {
7554 match event.button {
7555 MouseButton::Left => editor.update(cx, |editor, cx| {
7556 let pending_mouse_down = editor
7557 .pending_mouse_down
7558 .get_or_insert_with(Default::default)
7559 .clone();
7560
7561 *pending_mouse_down.borrow_mut() = Some(event.clone());
7562
7563 Self::mouse_left_down(
7564 editor,
7565 event,
7566 &position_map,
7567 line_numbers.as_ref(),
7568 window,
7569 cx,
7570 );
7571 }),
7572 MouseButton::Right => editor.update(cx, |editor, cx| {
7573 Self::mouse_right_down(editor, event, &position_map, window, cx);
7574 }),
7575 MouseButton::Middle => editor.update(cx, |editor, cx| {
7576 Self::mouse_middle_down(editor, event, &position_map, window, cx);
7577 }),
7578 _ => {}
7579 };
7580 }
7581 }
7582 });
7583
7584 window.on_mouse_event({
7585 let editor = self.editor.clone();
7586 let position_map = layout.position_map.clone();
7587
7588 move |event: &MouseUpEvent, phase, window, cx| {
7589 if phase == DispatchPhase::Bubble {
7590 editor.update(cx, |editor, cx| {
7591 Self::mouse_up(editor, event, &position_map, window, cx)
7592 });
7593 }
7594 }
7595 });
7596
7597 window.on_mouse_event({
7598 let editor = self.editor.clone();
7599 let position_map = layout.position_map.clone();
7600 let mut captured_mouse_down = None;
7601
7602 move |event: &MouseUpEvent, phase, window, cx| match phase {
7603 // Clear the pending mouse down during the capture phase,
7604 // so that it happens even if another event handler stops
7605 // propagation.
7606 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
7607 let pending_mouse_down = editor
7608 .pending_mouse_down
7609 .get_or_insert_with(Default::default)
7610 .clone();
7611
7612 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
7613 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
7614 captured_mouse_down = pending_mouse_down.take();
7615 window.refresh();
7616 }
7617 }),
7618 // Fire click handlers during the bubble phase.
7619 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
7620 if let Some(mouse_down) = captured_mouse_down.take() {
7621 let event = ClickEvent::Mouse(MouseClickEvent {
7622 down: mouse_down,
7623 up: event.clone(),
7624 });
7625 Self::click(editor, &event, &position_map, window, cx);
7626 }
7627 }),
7628 }
7629 });
7630
7631 window.on_mouse_event({
7632 let position_map = layout.position_map.clone();
7633 let editor = self.editor.clone();
7634
7635 move |event: &MousePressureEvent, phase, window, cx| {
7636 if phase == DispatchPhase::Bubble {
7637 editor.update(cx, |editor, cx| {
7638 Self::pressure_click(editor, &event, &position_map, window, cx);
7639 })
7640 }
7641 }
7642 });
7643
7644 window.on_mouse_event({
7645 let position_map = layout.position_map.clone();
7646 let editor = self.editor.clone();
7647 let split_side = self.split_side;
7648
7649 move |event: &MouseMoveEvent, phase, window, cx| {
7650 if phase == DispatchPhase::Bubble {
7651 editor.update(cx, |editor, cx| {
7652 if editor.hover_state.focused(window, cx) {
7653 return;
7654 }
7655 if event.pressed_button == Some(MouseButton::Left)
7656 || event.pressed_button == Some(MouseButton::Middle)
7657 {
7658 Self::mouse_dragged(editor, event, &position_map, window, cx)
7659 }
7660
7661 Self::mouse_moved(editor, event, &position_map, split_side, window, cx)
7662 });
7663 }
7664 }
7665 });
7666 }
7667
7668 fn shape_line_number(
7669 &self,
7670 text: SharedString,
7671 color: Hsla,
7672 window: &mut Window,
7673 ) -> ShapedLine {
7674 let run = TextRun {
7675 len: text.len(),
7676 font: self.style.text.font(),
7677 color,
7678 ..Default::default()
7679 };
7680 window.text_system().shape_line(
7681 text,
7682 self.style.text.font_size.to_pixels(window.rem_size()),
7683 &[run],
7684 None,
7685 )
7686 }
7687
7688 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
7689 let unstaged = status.has_secondary_hunk();
7690 let unstaged_hollow = matches!(
7691 ProjectSettings::get_global(cx).git.hunk_style,
7692 GitHunkStyleSetting::UnstagedHollow
7693 );
7694
7695 unstaged == unstaged_hollow
7696 }
7697
7698 #[cfg(debug_assertions)]
7699 fn layout_debug_ranges(
7700 selections: &mut Vec<(PlayerColor, Vec<SelectionLayout>)>,
7701 anchor_range: Range<Anchor>,
7702 display_snapshot: &DisplaySnapshot,
7703 cx: &App,
7704 ) {
7705 let theme = cx.theme();
7706 text::debug::GlobalDebugRanges::with_locked(|debug_ranges| {
7707 if debug_ranges.ranges.is_empty() {
7708 return;
7709 }
7710 let buffer_snapshot = &display_snapshot.buffer_snapshot();
7711 for (buffer, buffer_range, excerpt_id) in
7712 buffer_snapshot.range_to_buffer_ranges(anchor_range.start..=anchor_range.end)
7713 {
7714 let buffer_range =
7715 buffer.anchor_after(buffer_range.start)..buffer.anchor_before(buffer_range.end);
7716 selections.extend(debug_ranges.ranges.iter().flat_map(|debug_range| {
7717 let player_color = theme
7718 .players()
7719 .color_for_participant(debug_range.occurrence_index as u32 + 1);
7720 debug_range.ranges.iter().filter_map(move |range| {
7721 if range.start.buffer_id != Some(buffer.remote_id()) {
7722 return None;
7723 }
7724 let clipped_start = range.start.max(&buffer_range.start, buffer);
7725 let clipped_end = range.end.min(&buffer_range.end, buffer);
7726 let range = buffer_snapshot
7727 .anchor_range_in_excerpt(excerpt_id, *clipped_start..*clipped_end)?;
7728 let start = range.start.to_display_point(display_snapshot);
7729 let end = range.end.to_display_point(display_snapshot);
7730 let selection_layout = SelectionLayout {
7731 head: start,
7732 range: start..end,
7733 cursor_shape: CursorShape::Bar,
7734 is_newest: false,
7735 is_local: false,
7736 active_rows: start.row()..end.row(),
7737 user_name: Some(SharedString::new(debug_range.value.clone())),
7738 };
7739 Some((player_color, vec![selection_layout]))
7740 })
7741 }));
7742 }
7743 });
7744 }
7745}
7746
7747pub fn render_breadcrumb_text(
7748 mut segments: Vec<BreadcrumbText>,
7749 prefix: Option<gpui::AnyElement>,
7750 active_item: &dyn ItemHandle,
7751 multibuffer_header: bool,
7752 window: &mut Window,
7753 cx: &App,
7754) -> impl IntoElement {
7755 const MAX_SEGMENTS: usize = 12;
7756
7757 let element = h_flex().flex_grow().text_ui(cx);
7758
7759 let prefix_end_ix = cmp::min(segments.len(), MAX_SEGMENTS / 2);
7760 let suffix_start_ix = cmp::max(
7761 prefix_end_ix,
7762 segments.len().saturating_sub(MAX_SEGMENTS / 2),
7763 );
7764
7765 if suffix_start_ix > prefix_end_ix {
7766 segments.splice(
7767 prefix_end_ix..suffix_start_ix,
7768 Some(BreadcrumbText {
7769 text: "β―".into(),
7770 highlights: None,
7771 font: None,
7772 }),
7773 );
7774 }
7775
7776 let highlighted_segments = segments.into_iter().enumerate().map(|(index, segment)| {
7777 let mut text_style = window.text_style();
7778 if let Some(ref font) = segment.font {
7779 text_style.font_family = font.family.clone();
7780 text_style.font_features = font.features.clone();
7781 text_style.font_style = font.style;
7782 text_style.font_weight = font.weight;
7783 }
7784 text_style.color = Color::Muted.color(cx);
7785
7786 if index == 0
7787 && !workspace::TabBarSettings::get_global(cx).show
7788 && active_item.is_dirty(cx)
7789 && let Some(styled_element) = apply_dirty_filename_style(&segment, &text_style, cx)
7790 {
7791 return styled_element;
7792 }
7793
7794 StyledText::new(segment.text.replace('\n', "β"))
7795 .with_default_highlights(&text_style, segment.highlights.unwrap_or_default())
7796 .into_any()
7797 });
7798
7799 let breadcrumbs = Itertools::intersperse_with(highlighted_segments, || {
7800 Label::new("βΊ").color(Color::Placeholder).into_any_element()
7801 });
7802
7803 let breadcrumbs_stack = h_flex()
7804 .gap_1()
7805 .when(multibuffer_header, |this| {
7806 this.pl_2()
7807 .border_l_1()
7808 .border_color(cx.theme().colors().border.opacity(0.6))
7809 })
7810 .children(breadcrumbs);
7811
7812 let breadcrumbs = if let Some(prefix) = prefix {
7813 h_flex().gap_1p5().child(prefix).child(breadcrumbs_stack)
7814 } else {
7815 breadcrumbs_stack
7816 };
7817
7818 let editor = active_item
7819 .downcast::<Editor>()
7820 .map(|editor| editor.downgrade());
7821
7822 let has_project_path = active_item.project_path(cx).is_some();
7823
7824 match editor {
7825 Some(editor) => element
7826 .id("breadcrumb_container")
7827 .when(!multibuffer_header, |this| this.overflow_x_scroll())
7828 .child(
7829 ButtonLike::new("toggle outline view")
7830 .child(breadcrumbs)
7831 .when(multibuffer_header, |this| {
7832 this.style(ButtonStyle::Transparent)
7833 })
7834 .when(!multibuffer_header, |this| {
7835 let focus_handle = editor.upgrade().unwrap().focus_handle(&cx);
7836
7837 this.tooltip(Tooltip::element(move |_window, cx| {
7838 v_flex()
7839 .gap_1()
7840 .child(
7841 h_flex()
7842 .gap_1()
7843 .justify_between()
7844 .child(Label::new("Show Symbol Outline"))
7845 .child(ui::KeyBinding::for_action_in(
7846 &zed_actions::outline::ToggleOutline,
7847 &focus_handle,
7848 cx,
7849 )),
7850 )
7851 .when(has_project_path, |this| {
7852 this.child(
7853 h_flex()
7854 .gap_1()
7855 .justify_between()
7856 .pt_1()
7857 .border_t_1()
7858 .border_color(cx.theme().colors().border_variant)
7859 .child(Label::new("Right-Click to Copy Path")),
7860 )
7861 })
7862 .into_any_element()
7863 }))
7864 .on_click({
7865 let editor = editor.clone();
7866 move |_, window, cx| {
7867 if let Some((editor, callback)) = editor
7868 .upgrade()
7869 .zip(zed_actions::outline::TOGGLE_OUTLINE.get())
7870 {
7871 callback(editor.to_any_view(), window, cx);
7872 }
7873 }
7874 })
7875 .when(has_project_path, |this| {
7876 this.on_right_click({
7877 let editor = editor.clone();
7878 move |_, _, cx| {
7879 if let Some(abs_path) = editor.upgrade().and_then(|editor| {
7880 editor.update(cx, |editor, cx| {
7881 editor.target_file_abs_path(cx)
7882 })
7883 }) {
7884 if let Some(path_str) = abs_path.to_str() {
7885 cx.write_to_clipboard(ClipboardItem::new_string(
7886 path_str.to_string(),
7887 ));
7888 }
7889 }
7890 }
7891 })
7892 })
7893 }),
7894 )
7895 .into_any_element(),
7896 None => element
7897 .h(rems_from_px(22.)) // Match the height and padding of the `ButtonLike` in the other arm.
7898 .pl_1()
7899 .child(breadcrumbs)
7900 .into_any_element(),
7901 }
7902}
7903
7904fn apply_dirty_filename_style(
7905 segment: &BreadcrumbText,
7906 text_style: &gpui::TextStyle,
7907 cx: &App,
7908) -> Option<gpui::AnyElement> {
7909 let text = segment.text.replace('\n', "β");
7910
7911 let filename_position = std::path::Path::new(&segment.text)
7912 .file_name()
7913 .and_then(|f| {
7914 let filename_str = f.to_string_lossy();
7915 segment.text.rfind(filename_str.as_ref())
7916 })?;
7917
7918 let bold_weight = FontWeight::BOLD;
7919 let default_color = Color::Default.color(cx);
7920
7921 if filename_position == 0 {
7922 let mut filename_style = text_style.clone();
7923 filename_style.font_weight = bold_weight;
7924 filename_style.color = default_color;
7925
7926 return Some(
7927 StyledText::new(text)
7928 .with_default_highlights(&filename_style, [])
7929 .into_any(),
7930 );
7931 }
7932
7933 let highlight_style = gpui::HighlightStyle {
7934 font_weight: Some(bold_weight),
7935 color: Some(default_color),
7936 ..Default::default()
7937 };
7938
7939 let highlight = vec![(filename_position..text.len(), highlight_style)];
7940 Some(
7941 StyledText::new(text)
7942 .with_default_highlights(text_style, highlight)
7943 .into_any(),
7944 )
7945}
7946
7947fn file_status_label_color(file_status: Option<FileStatus>) -> Color {
7948 file_status.map_or(Color::Default, |status| {
7949 if status.is_conflicted() {
7950 Color::Conflict
7951 } else if status.is_modified() {
7952 Color::Modified
7953 } else if status.is_deleted() {
7954 Color::Disabled
7955 } else if status.is_created() {
7956 Color::Created
7957 } else {
7958 Color::Default
7959 }
7960 })
7961}
7962
7963pub(crate) fn header_jump_data(
7964 editor_snapshot: &EditorSnapshot,
7965 block_row_start: DisplayRow,
7966 height: u32,
7967 first_excerpt: &ExcerptInfo,
7968 latest_selection_anchors: &HashMap<BufferId, Anchor>,
7969) -> JumpData {
7970 let jump_target = if let Some(anchor) = latest_selection_anchors.get(&first_excerpt.buffer_id)
7971 && let Some(range) = editor_snapshot.context_range_for_excerpt(anchor.excerpt_id)
7972 && let Some(buffer) = editor_snapshot
7973 .buffer_snapshot()
7974 .buffer_for_excerpt(anchor.excerpt_id)
7975 {
7976 JumpTargetInExcerptInput {
7977 id: anchor.excerpt_id,
7978 buffer,
7979 excerpt_start_anchor: range.start,
7980 jump_anchor: anchor.text_anchor,
7981 }
7982 } else {
7983 JumpTargetInExcerptInput {
7984 id: first_excerpt.id,
7985 buffer: &first_excerpt.buffer,
7986 excerpt_start_anchor: first_excerpt.range.context.start,
7987 jump_anchor: first_excerpt.range.primary.start,
7988 }
7989 };
7990 header_jump_data_inner(editor_snapshot, block_row_start, height, &jump_target)
7991}
7992
7993struct JumpTargetInExcerptInput<'a> {
7994 id: ExcerptId,
7995 buffer: &'a language::BufferSnapshot,
7996 excerpt_start_anchor: text::Anchor,
7997 jump_anchor: text::Anchor,
7998}
7999
8000fn header_jump_data_inner(
8001 snapshot: &EditorSnapshot,
8002 block_row_start: DisplayRow,
8003 height: u32,
8004 for_excerpt: &JumpTargetInExcerptInput,
8005) -> JumpData {
8006 let buffer = &for_excerpt.buffer;
8007 let jump_position = language::ToPoint::to_point(&for_excerpt.jump_anchor, buffer);
8008 let excerpt_start = for_excerpt.excerpt_start_anchor;
8009 let rows_from_excerpt_start = if for_excerpt.jump_anchor == excerpt_start {
8010 0
8011 } else {
8012 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
8013 jump_position.row.saturating_sub(excerpt_start_point.row)
8014 };
8015
8016 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
8017 .saturating_sub(
8018 snapshot
8019 .scroll_anchor
8020 .scroll_position(&snapshot.display_snapshot)
8021 .y as u32,
8022 );
8023
8024 JumpData::MultiBufferPoint {
8025 excerpt_id: for_excerpt.id,
8026 anchor: for_excerpt.jump_anchor,
8027 position: jump_position,
8028 line_offset_from_top,
8029 }
8030}
8031
8032pub(crate) fn render_buffer_header(
8033 editor: &Entity<Editor>,
8034 for_excerpt: &ExcerptInfo,
8035 is_folded: bool,
8036 is_selected: bool,
8037 is_sticky: bool,
8038 jump_data: JumpData,
8039 window: &mut Window,
8040 cx: &mut App,
8041) -> impl IntoElement {
8042 let editor_read = editor.read(cx);
8043 let multi_buffer = editor_read.buffer.read(cx);
8044 let is_read_only = editor_read.read_only(cx);
8045 let editor_handle: &dyn ItemHandle = editor;
8046
8047 let breadcrumbs = if is_selected {
8048 editor_read.breadcrumbs_inner(cx.theme(), cx)
8049 } else {
8050 None
8051 };
8052
8053 let file_status = multi_buffer
8054 .all_diff_hunks_expanded()
8055 .then(|| editor_read.status_for_buffer_id(for_excerpt.buffer_id, cx))
8056 .flatten();
8057 let indicator = multi_buffer
8058 .buffer(for_excerpt.buffer_id)
8059 .and_then(|buffer| {
8060 let buffer = buffer.read(cx);
8061 let indicator_color = match (buffer.has_conflict(), buffer.is_dirty()) {
8062 (true, _) => Some(Color::Warning),
8063 (_, true) => Some(Color::Accent),
8064 (false, false) => None,
8065 };
8066 indicator_color.map(|indicator_color| Indicator::dot().color(indicator_color))
8067 });
8068
8069 let include_root = editor_read
8070 .project
8071 .as_ref()
8072 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
8073 .unwrap_or_default();
8074 let file = for_excerpt.buffer.file();
8075 let can_open_excerpts = file.is_none_or(|file| file.can_open());
8076 let path_style = file.map(|file| file.path_style(cx));
8077 let relative_path = for_excerpt.buffer.resolve_file_path(include_root, cx);
8078 let (parent_path, filename) = if let Some(path) = &relative_path {
8079 if let Some(path_style) = path_style {
8080 let (dir, file_name) = path_style.split(path);
8081 (dir.map(|dir| dir.to_owned()), Some(file_name.to_owned()))
8082 } else {
8083 (None, Some(path.clone()))
8084 }
8085 } else {
8086 (None, None)
8087 };
8088 let focus_handle = editor_read.focus_handle(cx);
8089 let colors = cx.theme().colors();
8090
8091 let header = div()
8092 .id(("buffer-header", for_excerpt.buffer_id.to_proto()))
8093 .p_1()
8094 .w_full()
8095 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
8096 .child(
8097 h_flex()
8098 .size_full()
8099 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
8100 .pl_1()
8101 .pr_2()
8102 .rounded_sm()
8103 .gap_1p5()
8104 .when(is_sticky, |el| el.shadow_md())
8105 .border_1()
8106 .map(|border| {
8107 let border_color =
8108 if is_selected && is_folded && focus_handle.contains_focused(window, cx) {
8109 colors.border_focused
8110 } else {
8111 colors.border
8112 };
8113 border.border_color(border_color)
8114 })
8115 .bg(colors.editor_subheader_background)
8116 .hover(|style| style.bg(colors.element_hover))
8117 .map(|header| {
8118 let editor = editor.clone();
8119 let buffer_id = for_excerpt.buffer_id;
8120 let toggle_chevron_icon =
8121 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
8122 let button_size = rems_from_px(28.);
8123
8124 header.child(
8125 div()
8126 .hover(|style| style.bg(colors.element_selected))
8127 .rounded_xs()
8128 .child(
8129 ButtonLike::new("toggle-buffer-fold")
8130 .style(ButtonStyle::Transparent)
8131 .height(button_size.into())
8132 .width(button_size)
8133 .children(toggle_chevron_icon)
8134 .tooltip({
8135 let focus_handle = focus_handle.clone();
8136 let is_folded_for_tooltip = is_folded;
8137 move |_window, cx| {
8138 Tooltip::with_meta_in(
8139 if is_folded_for_tooltip {
8140 "Unfold Excerpt"
8141 } else {
8142 "Fold Excerpt"
8143 },
8144 Some(&ToggleFold),
8145 format!(
8146 "{} to toggle all",
8147 text_for_keystroke(
8148 &Modifiers::alt(),
8149 "click",
8150 cx
8151 )
8152 ),
8153 &focus_handle,
8154 cx,
8155 )
8156 }
8157 })
8158 .on_click(move |event, window, cx| {
8159 if event.modifiers().alt {
8160 editor.update(cx, |editor, cx| {
8161 editor.toggle_fold_all(&ToggleFoldAll, window, cx);
8162 });
8163 } else {
8164 if is_folded {
8165 editor.update(cx, |editor, cx| {
8166 editor.unfold_buffer(buffer_id, cx);
8167 });
8168 } else {
8169 editor.update(cx, |editor, cx| {
8170 editor.fold_buffer(buffer_id, cx);
8171 });
8172 }
8173 }
8174 }),
8175 ),
8176 )
8177 })
8178 .children(
8179 editor_read
8180 .addons
8181 .values()
8182 .filter_map(|addon| {
8183 addon.render_buffer_header_controls(for_excerpt, window, cx)
8184 })
8185 .take(1),
8186 )
8187 .when(!is_read_only, |this| {
8188 this.child(
8189 h_flex()
8190 .size_3()
8191 .justify_center()
8192 .flex_shrink_0()
8193 .children(indicator),
8194 )
8195 })
8196 .child(
8197 h_flex()
8198 .cursor_pointer()
8199 .id("path_header_block")
8200 .min_w_0()
8201 .size_full()
8202 .gap_1()
8203 .justify_between()
8204 .overflow_hidden()
8205 .child(h_flex().min_w_0().flex_1().gap_0p5().overflow_hidden().map(
8206 |path_header| {
8207 let filename = filename
8208 .map(SharedString::from)
8209 .unwrap_or_else(|| "untitled".into());
8210
8211 let full_path = match parent_path.as_deref() {
8212 Some(parent) if !parent.is_empty() => {
8213 format!("{}{}", parent, filename.as_str())
8214 }
8215 _ => filename.as_str().to_string(),
8216 };
8217
8218 path_header
8219 .child(
8220 ButtonLike::new("filename-button")
8221 .when(ItemSettings::get_global(cx).file_icons, |this| {
8222 let path = path::Path::new(filename.as_str());
8223 let icon = FileIcons::get_icon(path, cx)
8224 .unwrap_or_default();
8225
8226 this.child(
8227 Icon::from_path(icon).color(Color::Muted),
8228 )
8229 })
8230 .child(
8231 Label::new(filename)
8232 .single_line()
8233 .color(file_status_label_color(file_status))
8234 .buffer_font(cx)
8235 .when(
8236 file_status.is_some_and(|s| s.is_deleted()),
8237 |label| label.strikethrough(),
8238 ),
8239 )
8240 .tooltip(move |_, cx| {
8241 Tooltip::with_meta(
8242 "Open File",
8243 None,
8244 full_path.clone(),
8245 cx,
8246 )
8247 })
8248 .on_click(window.listener_for(editor, {
8249 let jump_data = jump_data.clone();
8250 move |editor, e: &ClickEvent, window, cx| {
8251 editor.open_excerpts_common(
8252 Some(jump_data.clone()),
8253 e.modifiers().secondary(),
8254 window,
8255 cx,
8256 );
8257 }
8258 })),
8259 )
8260 .when_some(parent_path, |then, path| {
8261 then.child(
8262 Label::new(path)
8263 .buffer_font(cx)
8264 .truncate_start()
8265 .color(
8266 if file_status
8267 .is_some_and(FileStatus::is_deleted)
8268 {
8269 Color::Custom(colors.text_disabled)
8270 } else {
8271 Color::Custom(colors.text_muted)
8272 },
8273 ),
8274 )
8275 })
8276 .when(!for_excerpt.buffer.capability.editable(), |el| {
8277 el.child(Icon::new(IconName::FileLock).color(Color::Muted))
8278 })
8279 .when_some(breadcrumbs, |then, breadcrumbs| {
8280 then.child(render_breadcrumb_text(
8281 breadcrumbs,
8282 None,
8283 editor_handle,
8284 true,
8285 window,
8286 cx,
8287 ))
8288 })
8289 },
8290 ))
8291 .when(
8292 can_open_excerpts && is_selected && relative_path.is_some(),
8293 |el| {
8294 el.child(
8295 Button::new("open-file-button", "Open File")
8296 .style(ButtonStyle::OutlinedGhost)
8297 .key_binding(KeyBinding::for_action_in(
8298 &OpenExcerpts,
8299 &focus_handle,
8300 cx,
8301 ))
8302 .on_click(window.listener_for(editor, {
8303 let jump_data = jump_data.clone();
8304 move |editor, e: &ClickEvent, window, cx| {
8305 editor.open_excerpts_common(
8306 Some(jump_data.clone()),
8307 e.modifiers().secondary(),
8308 window,
8309 cx,
8310 );
8311 }
8312 })),
8313 )
8314 },
8315 )
8316 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
8317 .on_click(window.listener_for(editor, {
8318 let buffer_id = for_excerpt.buffer_id;
8319 move |editor, e: &ClickEvent, window, cx| {
8320 if e.modifiers().alt {
8321 editor.open_excerpts_common(
8322 Some(jump_data.clone()),
8323 e.modifiers().secondary(),
8324 window,
8325 cx,
8326 );
8327 return;
8328 }
8329
8330 if is_folded {
8331 editor.unfold_buffer(buffer_id, cx);
8332 } else {
8333 editor.fold_buffer(buffer_id, cx);
8334 }
8335 }
8336 })),
8337 ),
8338 );
8339
8340 let file = for_excerpt.buffer.file().cloned();
8341 let editor = editor.clone();
8342
8343 right_click_menu("buffer-header-context-menu")
8344 .trigger(move |_, _, _| header)
8345 .menu(move |window, cx| {
8346 let menu_context = focus_handle.clone();
8347 let editor = editor.clone();
8348 let file = file.clone();
8349 ContextMenu::build(window, cx, move |mut menu, window, cx| {
8350 if let Some(file) = file
8351 && let Some(project) = editor.read(cx).project()
8352 && let Some(worktree) =
8353 project.read(cx).worktree_for_id(file.worktree_id(cx), cx)
8354 {
8355 let path_style = file.path_style(cx);
8356 let worktree = worktree.read(cx);
8357 let relative_path = file.path();
8358 let entry_for_path = worktree.entry_for_path(relative_path);
8359 let abs_path = entry_for_path.map(|e| {
8360 e.canonical_path
8361 .as_deref()
8362 .map_or_else(|| worktree.absolutize(relative_path), Path::to_path_buf)
8363 });
8364 let has_relative_path = worktree.root_entry().is_some_and(Entry::is_dir);
8365
8366 let parent_abs_path = abs_path
8367 .as_ref()
8368 .and_then(|abs_path| Some(abs_path.parent()?.to_path_buf()));
8369 let relative_path = has_relative_path
8370 .then_some(relative_path)
8371 .map(ToOwned::to_owned);
8372
8373 let visible_in_project_panel = relative_path.is_some() && worktree.is_visible();
8374 let reveal_in_project_panel = entry_for_path
8375 .filter(|_| visible_in_project_panel)
8376 .map(|entry| entry.id);
8377 menu = menu
8378 .when_some(abs_path, |menu, abs_path| {
8379 menu.entry(
8380 "Copy Path",
8381 Some(Box::new(zed_actions::workspace::CopyPath)),
8382 window.handler_for(&editor, move |_, _, cx| {
8383 cx.write_to_clipboard(ClipboardItem::new_string(
8384 abs_path.to_string_lossy().into_owned(),
8385 ));
8386 }),
8387 )
8388 })
8389 .when_some(relative_path, |menu, relative_path| {
8390 menu.entry(
8391 "Copy Relative Path",
8392 Some(Box::new(zed_actions::workspace::CopyRelativePath)),
8393 window.handler_for(&editor, move |_, _, cx| {
8394 cx.write_to_clipboard(ClipboardItem::new_string(
8395 relative_path.display(path_style).to_string(),
8396 ));
8397 }),
8398 )
8399 })
8400 .when(
8401 reveal_in_project_panel.is_some() || parent_abs_path.is_some(),
8402 |menu| menu.separator(),
8403 )
8404 .when_some(reveal_in_project_panel, |menu, entry_id| {
8405 menu.entry(
8406 "Reveal In Project Panel",
8407 Some(Box::new(RevealInProjectPanel::default())),
8408 window.handler_for(&editor, move |editor, _, cx| {
8409 if let Some(project) = &mut editor.project {
8410 project.update(cx, |_, cx| {
8411 cx.emit(project::Event::RevealInProjectPanel(entry_id))
8412 });
8413 }
8414 }),
8415 )
8416 })
8417 .when_some(parent_abs_path, |menu, parent_abs_path| {
8418 menu.entry(
8419 "Open in Terminal",
8420 Some(Box::new(OpenInTerminal)),
8421 window.handler_for(&editor, move |_, window, cx| {
8422 window.dispatch_action(
8423 OpenTerminal {
8424 working_directory: parent_abs_path.clone(),
8425 local: false,
8426 }
8427 .boxed_clone(),
8428 cx,
8429 );
8430 }),
8431 )
8432 });
8433 }
8434
8435 menu.context(menu_context)
8436 })
8437 })
8438}
8439
8440pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
8441
8442impl AcceptEditPredictionBinding {
8443 pub fn keystroke(&self) -> Option<&KeybindingKeystroke> {
8444 if let Some(binding) = self.0.as_ref() {
8445 match &binding.keystrokes() {
8446 [keystroke, ..] => Some(keystroke),
8447 _ => None,
8448 }
8449 } else {
8450 None
8451 }
8452 }
8453}
8454
8455fn prepaint_gutter_button(
8456 mut button: AnyElement,
8457 row: DisplayRow,
8458 line_height: Pixels,
8459 gutter_dimensions: &GutterDimensions,
8460 scroll_position: gpui::Point<ScrollOffset>,
8461 gutter_hitbox: &Hitbox,
8462 window: &mut Window,
8463 cx: &mut App,
8464) -> AnyElement {
8465 let available_space = size(
8466 AvailableSpace::MinContent,
8467 AvailableSpace::Definite(line_height),
8468 );
8469 let indicator_size = button.layout_as_root(available_space, window, cx);
8470 let git_gutter_width = EditorElement::gutter_strip_width(line_height)
8471 + gutter_dimensions
8472 .git_blame_entries_width
8473 .unwrap_or_default();
8474
8475 let x = git_gutter_width + px(2.);
8476
8477 let mut y =
8478 Pixels::from((row.as_f64() - scroll_position.y) * ScrollPixelOffset::from(line_height));
8479 y += (line_height - indicator_size.height) / 2.;
8480
8481 button.prepaint_as_root(
8482 gutter_hitbox.origin + point(x, y),
8483 available_space,
8484 window,
8485 cx,
8486 );
8487 button
8488}
8489
8490fn render_inline_blame_entry(
8491 blame_entry: BlameEntry,
8492 style: &EditorStyle,
8493 cx: &mut App,
8494) -> Option<AnyElement> {
8495 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
8496 renderer.render_inline_blame_entry(&style.text, blame_entry, cx)
8497}
8498
8499fn render_blame_entry_popover(
8500 blame_entry: BlameEntry,
8501 scroll_handle: ScrollHandle,
8502 commit_message: Option<ParsedCommitMessage>,
8503 markdown: Entity<Markdown>,
8504 workspace: WeakEntity<Workspace>,
8505 blame: &Entity<GitBlame>,
8506 buffer: BufferId,
8507 window: &mut Window,
8508 cx: &mut App,
8509) -> Option<AnyElement> {
8510 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
8511 let blame = blame.read(cx);
8512 let repository = blame.repository(cx, buffer)?;
8513 renderer.render_blame_entry_popover(
8514 blame_entry,
8515 scroll_handle,
8516 commit_message,
8517 markdown,
8518 repository,
8519 workspace,
8520 window,
8521 cx,
8522 )
8523}
8524
8525fn render_blame_entry(
8526 ix: usize,
8527 blame: &Entity<GitBlame>,
8528 blame_entry: BlameEntry,
8529 style: &EditorStyle,
8530 last_used_color: &mut Option<(Hsla, Oid)>,
8531 editor: Entity<Editor>,
8532 workspace: Entity<Workspace>,
8533 buffer: BufferId,
8534 renderer: &dyn BlameRenderer,
8535 window: &mut Window,
8536 cx: &mut App,
8537) -> Option<AnyElement> {
8538 let index: u32 = blame_entry.sha.into();
8539 let mut sha_color = cx.theme().players().color_for_participant(index).cursor;
8540
8541 // If the last color we used is the same as the one we get for this line, but
8542 // the commit SHAs are different, then we try again to get a different color.
8543 if let Some((color, sha)) = *last_used_color
8544 && sha != blame_entry.sha
8545 && color == sha_color
8546 {
8547 sha_color = cx.theme().players().color_for_participant(index + 1).cursor;
8548 }
8549 last_used_color.replace((sha_color, blame_entry.sha));
8550
8551 let blame = blame.read(cx);
8552 let details = blame.details_for_entry(buffer, &blame_entry);
8553 let repository = blame.repository(cx, buffer)?;
8554 renderer.render_blame_entry(
8555 &style.text,
8556 blame_entry,
8557 details,
8558 repository,
8559 workspace.downgrade(),
8560 editor,
8561 ix,
8562 sha_color,
8563 window,
8564 cx,
8565 )
8566}
8567
8568#[derive(Debug)]
8569pub(crate) struct LineWithInvisibles {
8570 fragments: SmallVec<[LineFragment; 1]>,
8571 invisibles: Vec<Invisible>,
8572 len: usize,
8573 pub(crate) width: Pixels,
8574 font_size: Pixels,
8575}
8576
8577enum LineFragment {
8578 Text(ShapedLine),
8579 Element {
8580 id: ChunkRendererId,
8581 element: Option<AnyElement>,
8582 size: Size<Pixels>,
8583 len: usize,
8584 },
8585}
8586
8587impl fmt::Debug for LineFragment {
8588 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
8589 match self {
8590 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
8591 LineFragment::Element { size, len, .. } => f
8592 .debug_struct("Element")
8593 .field("size", size)
8594 .field("len", len)
8595 .finish(),
8596 }
8597 }
8598}
8599
8600impl LineWithInvisibles {
8601 fn from_chunks<'a>(
8602 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
8603 editor_style: &EditorStyle,
8604 max_line_len: usize,
8605 max_line_count: usize,
8606 editor_mode: &EditorMode,
8607 text_width: Pixels,
8608 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8609 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
8610 window: &mut Window,
8611 cx: &mut App,
8612 ) -> Vec<Self> {
8613 let text_style = &editor_style.text;
8614 let mut layouts = Vec::with_capacity(max_line_count);
8615 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
8616 let mut line = String::new();
8617 let mut invisibles = Vec::new();
8618 let mut width = Pixels::ZERO;
8619 let mut len = 0;
8620 let mut styles = Vec::new();
8621 let mut non_whitespace_added = false;
8622 let mut row = 0;
8623 let mut line_exceeded_max_len = false;
8624 let font_size = text_style.font_size.to_pixels(window.rem_size());
8625 let min_contrast = EditorSettings::get_global(cx).minimum_contrast_for_highlights;
8626
8627 let ellipsis = SharedString::from("β―");
8628
8629 for highlighted_chunk in chunks.chain([HighlightedChunk {
8630 text: "\n",
8631 style: None,
8632 is_tab: false,
8633 is_inlay: false,
8634 replacement: None,
8635 }]) {
8636 if let Some(replacement) = highlighted_chunk.replacement {
8637 if !line.is_empty() {
8638 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8639 let text_runs: &[TextRun] = if segments.is_empty() {
8640 &styles
8641 } else {
8642 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8643 };
8644 let shaped_line = window.text_system().shape_line(
8645 line.clone().into(),
8646 font_size,
8647 text_runs,
8648 None,
8649 );
8650 width += shaped_line.width;
8651 len += shaped_line.len;
8652 fragments.push(LineFragment::Text(shaped_line));
8653 line.clear();
8654 styles.clear();
8655 }
8656
8657 match replacement {
8658 ChunkReplacement::Renderer(renderer) => {
8659 let available_width = if renderer.constrain_width {
8660 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
8661 ellipsis.clone()
8662 } else {
8663 SharedString::from(Arc::from(highlighted_chunk.text))
8664 };
8665 let shaped_line = window.text_system().shape_line(
8666 chunk,
8667 font_size,
8668 &[text_style.to_run(highlighted_chunk.text.len())],
8669 None,
8670 );
8671 AvailableSpace::Definite(shaped_line.width)
8672 } else {
8673 AvailableSpace::MinContent
8674 };
8675
8676 let mut element = (renderer.render)(&mut ChunkRendererContext {
8677 context: cx,
8678 window,
8679 max_width: text_width,
8680 });
8681 let line_height = text_style.line_height_in_pixels(window.rem_size());
8682 let size = element.layout_as_root(
8683 size(available_width, AvailableSpace::Definite(line_height)),
8684 window,
8685 cx,
8686 );
8687
8688 width += size.width;
8689 len += highlighted_chunk.text.len();
8690 fragments.push(LineFragment::Element {
8691 id: renderer.id,
8692 element: Some(element),
8693 size,
8694 len: highlighted_chunk.text.len(),
8695 });
8696 }
8697 ChunkReplacement::Str(x) => {
8698 let text_style = if let Some(style) = highlighted_chunk.style {
8699 Cow::Owned(text_style.clone().highlight(style))
8700 } else {
8701 Cow::Borrowed(text_style)
8702 };
8703
8704 let run = TextRun {
8705 len: x.len(),
8706 font: text_style.font(),
8707 color: text_style.color,
8708 background_color: text_style.background_color,
8709 underline: text_style.underline,
8710 strikethrough: text_style.strikethrough,
8711 };
8712 let line_layout = window
8713 .text_system()
8714 .shape_line(x, font_size, &[run], None)
8715 .with_len(highlighted_chunk.text.len());
8716
8717 width += line_layout.width;
8718 len += highlighted_chunk.text.len();
8719 fragments.push(LineFragment::Text(line_layout))
8720 }
8721 }
8722 } else {
8723 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
8724 if ix > 0 {
8725 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8726 let text_runs = if segments.is_empty() {
8727 &styles
8728 } else {
8729 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8730 };
8731 let shaped_line = window.text_system().shape_line(
8732 line.clone().into(),
8733 font_size,
8734 text_runs,
8735 None,
8736 );
8737 width += shaped_line.width;
8738 len += shaped_line.len;
8739 fragments.push(LineFragment::Text(shaped_line));
8740 layouts.push(Self {
8741 width: mem::take(&mut width),
8742 len: mem::take(&mut len),
8743 fragments: mem::take(&mut fragments),
8744 invisibles: std::mem::take(&mut invisibles),
8745 font_size,
8746 });
8747
8748 line.clear();
8749 styles.clear();
8750 row += 1;
8751 line_exceeded_max_len = false;
8752 non_whitespace_added = false;
8753 if row == max_line_count {
8754 return layouts;
8755 }
8756 }
8757
8758 if !line_chunk.is_empty() && !line_exceeded_max_len {
8759 let text_style = if let Some(style) = highlighted_chunk.style {
8760 Cow::Owned(text_style.clone().highlight(style))
8761 } else {
8762 Cow::Borrowed(text_style)
8763 };
8764
8765 if line.len() + line_chunk.len() > max_line_len {
8766 let mut chunk_len = max_line_len - line.len();
8767 while !line_chunk.is_char_boundary(chunk_len) {
8768 chunk_len -= 1;
8769 }
8770 line_chunk = &line_chunk[..chunk_len];
8771 line_exceeded_max_len = true;
8772 }
8773
8774 styles.push(TextRun {
8775 len: line_chunk.len(),
8776 font: text_style.font(),
8777 color: text_style.color,
8778 background_color: text_style.background_color,
8779 underline: text_style.underline,
8780 strikethrough: text_style.strikethrough,
8781 });
8782
8783 if editor_mode.is_full() && !highlighted_chunk.is_inlay {
8784 // Line wrap pads its contents with fake whitespaces,
8785 // avoid printing them
8786 let is_soft_wrapped = is_row_soft_wrapped(row);
8787 if highlighted_chunk.is_tab {
8788 if non_whitespace_added || !is_soft_wrapped {
8789 invisibles.push(Invisible::Tab {
8790 line_start_offset: line.len(),
8791 line_end_offset: line.len() + line_chunk.len(),
8792 });
8793 }
8794 } else {
8795 invisibles.extend(line_chunk.char_indices().filter_map(
8796 |(index, c)| {
8797 let is_whitespace = c.is_whitespace();
8798 non_whitespace_added |= !is_whitespace;
8799 if is_whitespace
8800 && (non_whitespace_added || !is_soft_wrapped)
8801 {
8802 Some(Invisible::Whitespace {
8803 line_offset: line.len() + index,
8804 })
8805 } else {
8806 None
8807 }
8808 },
8809 ))
8810 }
8811 }
8812
8813 line.push_str(line_chunk);
8814 }
8815 }
8816 }
8817 }
8818
8819 layouts
8820 }
8821
8822 /// Takes text runs and non-overlapping left-to-right background ranges with color.
8823 /// Returns new text runs with adjusted contrast as per background ranges.
8824 fn split_runs_by_bg_segments(
8825 text_runs: &[TextRun],
8826 bg_segments: &[(Range<DisplayPoint>, Hsla)],
8827 min_contrast: f32,
8828 start_col_offset: usize,
8829 ) -> Vec<TextRun> {
8830 let mut output_runs: Vec<TextRun> = Vec::with_capacity(text_runs.len());
8831 let mut line_col = start_col_offset;
8832 let mut segment_ix = 0usize;
8833
8834 for text_run in text_runs.iter() {
8835 let run_start_col = line_col;
8836 let run_end_col = run_start_col + text_run.len;
8837 while segment_ix < bg_segments.len()
8838 && (bg_segments[segment_ix].0.end.column() as usize) <= run_start_col
8839 {
8840 segment_ix += 1;
8841 }
8842 let mut cursor_col = run_start_col;
8843 let mut local_segment_ix = segment_ix;
8844 while local_segment_ix < bg_segments.len() {
8845 let (range, segment_color) = &bg_segments[local_segment_ix];
8846 let segment_start_col = range.start.column() as usize;
8847 let segment_end_col = range.end.column() as usize;
8848 if segment_start_col >= run_end_col {
8849 break;
8850 }
8851 if segment_start_col > cursor_col {
8852 let span_len = segment_start_col - cursor_col;
8853 output_runs.push(TextRun {
8854 len: span_len,
8855 font: text_run.font.clone(),
8856 color: text_run.color,
8857 background_color: text_run.background_color,
8858 underline: text_run.underline,
8859 strikethrough: text_run.strikethrough,
8860 });
8861 cursor_col = segment_start_col;
8862 }
8863 let segment_slice_end_col = segment_end_col.min(run_end_col);
8864 if segment_slice_end_col > cursor_col {
8865 let new_text_color =
8866 ensure_minimum_contrast(text_run.color, *segment_color, min_contrast);
8867 output_runs.push(TextRun {
8868 len: segment_slice_end_col - cursor_col,
8869 font: text_run.font.clone(),
8870 color: new_text_color,
8871 background_color: text_run.background_color,
8872 underline: text_run.underline,
8873 strikethrough: text_run.strikethrough,
8874 });
8875 cursor_col = segment_slice_end_col;
8876 }
8877 if segment_end_col >= run_end_col {
8878 break;
8879 }
8880 local_segment_ix += 1;
8881 }
8882 if cursor_col < run_end_col {
8883 output_runs.push(TextRun {
8884 len: run_end_col - cursor_col,
8885 font: text_run.font.clone(),
8886 color: text_run.color,
8887 background_color: text_run.background_color,
8888 underline: text_run.underline,
8889 strikethrough: text_run.strikethrough,
8890 });
8891 }
8892 line_col = run_end_col;
8893 segment_ix = local_segment_ix;
8894 }
8895 output_runs
8896 }
8897
8898 fn prepaint(
8899 &mut self,
8900 line_height: Pixels,
8901 scroll_position: gpui::Point<ScrollOffset>,
8902 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
8903 row: DisplayRow,
8904 content_origin: gpui::Point<Pixels>,
8905 line_elements: &mut SmallVec<[AnyElement; 1]>,
8906 window: &mut Window,
8907 cx: &mut App,
8908 ) {
8909 let line_y = f32::from(line_height) * Pixels::from(row.as_f64() - scroll_position.y);
8910 self.prepaint_with_custom_offset(
8911 line_height,
8912 scroll_pixel_position,
8913 content_origin,
8914 line_y,
8915 line_elements,
8916 window,
8917 cx,
8918 );
8919 }
8920
8921 fn prepaint_with_custom_offset(
8922 &mut self,
8923 line_height: Pixels,
8924 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
8925 content_origin: gpui::Point<Pixels>,
8926 line_y: Pixels,
8927 line_elements: &mut SmallVec<[AnyElement; 1]>,
8928 window: &mut Window,
8929 cx: &mut App,
8930 ) {
8931 let mut fragment_origin =
8932 content_origin + gpui::point(Pixels::from(-scroll_pixel_position.x), line_y);
8933 for fragment in &mut self.fragments {
8934 match fragment {
8935 LineFragment::Text(line) => {
8936 fragment_origin.x += line.width;
8937 }
8938 LineFragment::Element { element, size, .. } => {
8939 let mut element = element
8940 .take()
8941 .expect("you can't prepaint LineWithInvisibles twice");
8942
8943 // Center the element vertically within the line.
8944 let mut element_origin = fragment_origin;
8945 element_origin.y += (line_height - size.height) / 2.;
8946 element.prepaint_at(element_origin, window, cx);
8947 line_elements.push(element);
8948
8949 fragment_origin.x += size.width;
8950 }
8951 }
8952 }
8953 }
8954
8955 fn draw(
8956 &self,
8957 layout: &EditorLayout,
8958 row: DisplayRow,
8959 content_origin: gpui::Point<Pixels>,
8960 whitespace_setting: ShowWhitespaceSetting,
8961 selection_ranges: &[Range<DisplayPoint>],
8962 window: &mut Window,
8963 cx: &mut App,
8964 ) {
8965 self.draw_with_custom_offset(
8966 layout,
8967 row,
8968 content_origin,
8969 layout.position_map.line_height
8970 * (row.as_f64() - layout.position_map.scroll_position.y) as f32,
8971 whitespace_setting,
8972 selection_ranges,
8973 window,
8974 cx,
8975 );
8976 }
8977
8978 fn draw_with_custom_offset(
8979 &self,
8980 layout: &EditorLayout,
8981 row: DisplayRow,
8982 content_origin: gpui::Point<Pixels>,
8983 line_y: Pixels,
8984 whitespace_setting: ShowWhitespaceSetting,
8985 selection_ranges: &[Range<DisplayPoint>],
8986 window: &mut Window,
8987 cx: &mut App,
8988 ) {
8989 let line_height = layout.position_map.line_height;
8990 let mut fragment_origin = content_origin
8991 + gpui::point(
8992 Pixels::from(-layout.position_map.scroll_pixel_position.x),
8993 line_y,
8994 );
8995
8996 for fragment in &self.fragments {
8997 match fragment {
8998 LineFragment::Text(line) => {
8999 line.paint(
9000 fragment_origin,
9001 line_height,
9002 layout.text_align,
9003 Some(layout.content_width),
9004 window,
9005 cx,
9006 )
9007 .log_err();
9008 fragment_origin.x += line.width;
9009 }
9010 LineFragment::Element { size, .. } => {
9011 fragment_origin.x += size.width;
9012 }
9013 }
9014 }
9015
9016 self.draw_invisibles(
9017 selection_ranges,
9018 layout,
9019 content_origin,
9020 line_y,
9021 row,
9022 line_height,
9023 whitespace_setting,
9024 window,
9025 cx,
9026 );
9027 }
9028
9029 fn draw_background(
9030 &self,
9031 layout: &EditorLayout,
9032 row: DisplayRow,
9033 content_origin: gpui::Point<Pixels>,
9034 window: &mut Window,
9035 cx: &mut App,
9036 ) {
9037 let line_height = layout.position_map.line_height;
9038 let line_y = line_height * (row.as_f64() - layout.position_map.scroll_position.y) as f32;
9039
9040 let mut fragment_origin = content_origin
9041 + gpui::point(
9042 Pixels::from(-layout.position_map.scroll_pixel_position.x),
9043 line_y,
9044 );
9045
9046 for fragment in &self.fragments {
9047 match fragment {
9048 LineFragment::Text(line) => {
9049 line.paint_background(
9050 fragment_origin,
9051 line_height,
9052 layout.text_align,
9053 Some(layout.content_width),
9054 window,
9055 cx,
9056 )
9057 .log_err();
9058 fragment_origin.x += line.width;
9059 }
9060 LineFragment::Element { size, .. } => {
9061 fragment_origin.x += size.width;
9062 }
9063 }
9064 }
9065 }
9066
9067 fn draw_invisibles(
9068 &self,
9069 selection_ranges: &[Range<DisplayPoint>],
9070 layout: &EditorLayout,
9071 content_origin: gpui::Point<Pixels>,
9072 line_y: Pixels,
9073 row: DisplayRow,
9074 line_height: Pixels,
9075 whitespace_setting: ShowWhitespaceSetting,
9076 window: &mut Window,
9077 cx: &mut App,
9078 ) {
9079 let extract_whitespace_info = |invisible: &Invisible| {
9080 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
9081 Invisible::Tab {
9082 line_start_offset,
9083 line_end_offset,
9084 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
9085 Invisible::Whitespace { line_offset } => {
9086 (*line_offset, line_offset + 1, &layout.space_invisible)
9087 }
9088 };
9089
9090 let x_offset: ScrollPixelOffset = self.x_for_index(token_offset).into();
9091 let invisible_offset: ScrollPixelOffset =
9092 ((layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0)
9093 .into();
9094 let origin = content_origin
9095 + gpui::point(
9096 Pixels::from(
9097 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
9098 ),
9099 line_y,
9100 );
9101
9102 (
9103 [token_offset, token_end_offset],
9104 Box::new(move |window: &mut Window, cx: &mut App| {
9105 invisible_symbol
9106 .paint(origin, line_height, TextAlign::Left, None, window, cx)
9107 .log_err();
9108 }),
9109 )
9110 };
9111
9112 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
9113 match whitespace_setting {
9114 ShowWhitespaceSetting::None => (),
9115 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
9116 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
9117 let invisible_point = DisplayPoint::new(row, start as u32);
9118 if !selection_ranges
9119 .iter()
9120 .any(|region| region.start <= invisible_point && invisible_point < region.end)
9121 {
9122 return;
9123 }
9124
9125 paint(window, cx);
9126 }),
9127
9128 ShowWhitespaceSetting::Trailing => {
9129 let mut previous_start = self.len;
9130 for ([start, end], paint) in invisible_iter.rev() {
9131 if previous_start != end {
9132 break;
9133 }
9134 previous_start = start;
9135 paint(window, cx);
9136 }
9137 }
9138
9139 // For a whitespace to be on a boundary, any of the following conditions need to be met:
9140 // - It is a tab
9141 // - It is adjacent to an edge (start or end)
9142 // - It is adjacent to a whitespace (left or right)
9143 ShowWhitespaceSetting::Boundary => {
9144 // 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
9145 // the above cases.
9146 // Note: We zip in the original `invisibles` to check for tab equality
9147 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
9148 for (([start, end], paint), invisible) in
9149 invisible_iter.zip_eq(self.invisibles.iter())
9150 {
9151 let should_render = match (&last_seen, invisible) {
9152 (_, Invisible::Tab { .. }) => true,
9153 (Some((_, last_end, _)), _) => *last_end == start,
9154 _ => false,
9155 };
9156
9157 if should_render || start == 0 || end == self.len {
9158 paint(window, cx);
9159
9160 // Since we are scanning from the left, we will skip over the first available whitespace that is part
9161 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
9162 if let Some((should_render_last, last_end, paint_last)) = last_seen {
9163 // Note that we need to make sure that the last one is actually adjacent
9164 if !should_render_last && last_end == start {
9165 paint_last(window, cx);
9166 }
9167 }
9168 }
9169
9170 // Manually render anything within a selection
9171 let invisible_point = DisplayPoint::new(row, start as u32);
9172 if selection_ranges.iter().any(|region| {
9173 region.start <= invisible_point && invisible_point < region.end
9174 }) {
9175 paint(window, cx);
9176 }
9177
9178 last_seen = Some((should_render, end, paint));
9179 }
9180 }
9181 }
9182 }
9183
9184 pub fn x_for_index(&self, index: usize) -> Pixels {
9185 let mut fragment_start_x = Pixels::ZERO;
9186 let mut fragment_start_index = 0;
9187
9188 for fragment in &self.fragments {
9189 match fragment {
9190 LineFragment::Text(shaped_line) => {
9191 let fragment_end_index = fragment_start_index + shaped_line.len;
9192 if index < fragment_end_index {
9193 return fragment_start_x
9194 + shaped_line.x_for_index(index - fragment_start_index);
9195 }
9196 fragment_start_x += shaped_line.width;
9197 fragment_start_index = fragment_end_index;
9198 }
9199 LineFragment::Element { len, size, .. } => {
9200 let fragment_end_index = fragment_start_index + len;
9201 if index < fragment_end_index {
9202 return fragment_start_x;
9203 }
9204 fragment_start_x += size.width;
9205 fragment_start_index = fragment_end_index;
9206 }
9207 }
9208 }
9209
9210 fragment_start_x
9211 }
9212
9213 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
9214 let mut fragment_start_x = Pixels::ZERO;
9215 let mut fragment_start_index = 0;
9216
9217 for fragment in &self.fragments {
9218 match fragment {
9219 LineFragment::Text(shaped_line) => {
9220 let fragment_end_x = fragment_start_x + shaped_line.width;
9221 if x < fragment_end_x {
9222 return Some(
9223 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
9224 );
9225 }
9226 fragment_start_x = fragment_end_x;
9227 fragment_start_index += shaped_line.len;
9228 }
9229 LineFragment::Element { len, size, .. } => {
9230 let fragment_end_x = fragment_start_x + size.width;
9231 if x < fragment_end_x {
9232 return Some(fragment_start_index);
9233 }
9234 fragment_start_index += len;
9235 fragment_start_x = fragment_end_x;
9236 }
9237 }
9238 }
9239
9240 None
9241 }
9242
9243 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
9244 let mut fragment_start_index = 0;
9245
9246 for fragment in &self.fragments {
9247 match fragment {
9248 LineFragment::Text(shaped_line) => {
9249 let fragment_end_index = fragment_start_index + shaped_line.len;
9250 if index < fragment_end_index {
9251 return shaped_line.font_id_for_index(index - fragment_start_index);
9252 }
9253 fragment_start_index = fragment_end_index;
9254 }
9255 LineFragment::Element { len, .. } => {
9256 let fragment_end_index = fragment_start_index + len;
9257 if index < fragment_end_index {
9258 return None;
9259 }
9260 fragment_start_index = fragment_end_index;
9261 }
9262 }
9263 }
9264
9265 None
9266 }
9267
9268 pub fn alignment_offset(&self, text_align: TextAlign, content_width: Pixels) -> Pixels {
9269 let line_width = self.width;
9270 match text_align {
9271 TextAlign::Left => px(0.0),
9272 TextAlign::Center => (content_width - line_width) / 2.0,
9273 TextAlign::Right => content_width - line_width,
9274 }
9275 }
9276}
9277
9278#[derive(Debug, Clone, Copy, PartialEq, Eq)]
9279enum Invisible {
9280 /// A tab character
9281 ///
9282 /// A tab character is internally represented by spaces (configured by the user's tab width)
9283 /// aligned to the nearest column, so it's necessary to store the start and end offset for
9284 /// adjacency checks.
9285 Tab {
9286 line_start_offset: usize,
9287 line_end_offset: usize,
9288 },
9289 Whitespace {
9290 line_offset: usize,
9291 },
9292}
9293
9294impl EditorElement {
9295 /// Returns the rem size to use when rendering the [`EditorElement`].
9296 ///
9297 /// This allows UI elements to scale based on the `buffer_font_size`.
9298 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
9299 match self.editor.read(cx).mode {
9300 EditorMode::Full {
9301 scale_ui_elements_with_buffer_font_size: true,
9302 ..
9303 }
9304 | EditorMode::Minimap { .. } => {
9305 let buffer_font_size = self.style.text.font_size;
9306 match buffer_font_size {
9307 AbsoluteLength::Pixels(pixels) => {
9308 let rem_size_scale = {
9309 // Our default UI font size is 14px on a 16px base scale.
9310 // This means the default UI font size is 0.875rems.
9311 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
9312
9313 // We then determine the delta between a single rem and the default font
9314 // size scale.
9315 let default_font_size_delta = 1. - default_font_size_scale;
9316
9317 // Finally, we add this delta to 1rem to get the scale factor that
9318 // should be used to scale up the UI.
9319 1. + default_font_size_delta
9320 };
9321
9322 Some(pixels * rem_size_scale)
9323 }
9324 AbsoluteLength::Rems(rems) => {
9325 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
9326 }
9327 }
9328 }
9329 // We currently use single-line and auto-height editors in UI contexts,
9330 // so we don't want to scale everything with the buffer font size, as it
9331 // ends up looking off.
9332 _ => None,
9333 }
9334 }
9335
9336 fn editor_with_selections(&self, cx: &App) -> Option<Entity<Editor>> {
9337 if let EditorMode::Minimap { parent } = self.editor.read(cx).mode() {
9338 parent.upgrade()
9339 } else {
9340 Some(self.editor.clone())
9341 }
9342 }
9343}
9344
9345#[derive(Default)]
9346pub struct EditorRequestLayoutState {
9347 // We use prepaint depth to limit the number of times prepaint is
9348 // called recursively. We need this so that we can update stale
9349 // data for e.g. block heights in block map.
9350 prepaint_depth: Rc<Cell<usize>>,
9351}
9352
9353impl EditorRequestLayoutState {
9354 // In ideal conditions we only need one more subsequent prepaint call for resize to take effect.
9355 // i.e. MAX_PREPAINT_DEPTH = 2, but since moving blocks inline (place_near), more lines from
9356 // below get exposed, and we end up querying blocks for those lines too in subsequent renders.
9357 // Setting MAX_PREPAINT_DEPTH = 3, passes all tests. Just to be on the safe side we set it to 5, so
9358 // that subsequent shrinking does not lead to incorrect block placing.
9359 const MAX_PREPAINT_DEPTH: usize = 5;
9360
9361 fn increment_prepaint_depth(&self) -> EditorPrepaintGuard {
9362 let depth = self.prepaint_depth.get();
9363 self.prepaint_depth.set(depth + 1);
9364 EditorPrepaintGuard {
9365 prepaint_depth: self.prepaint_depth.clone(),
9366 }
9367 }
9368
9369 fn can_prepaint(&self) -> bool {
9370 self.prepaint_depth.get() < Self::MAX_PREPAINT_DEPTH
9371 }
9372}
9373
9374struct EditorPrepaintGuard {
9375 prepaint_depth: Rc<Cell<usize>>,
9376}
9377
9378impl Drop for EditorPrepaintGuard {
9379 fn drop(&mut self) {
9380 let depth = self.prepaint_depth.get();
9381 self.prepaint_depth.set(depth.saturating_sub(1));
9382 }
9383}
9384
9385impl Element for EditorElement {
9386 type RequestLayoutState = EditorRequestLayoutState;
9387 type PrepaintState = EditorLayout;
9388
9389 fn id(&self) -> Option<ElementId> {
9390 None
9391 }
9392
9393 fn source_location(&self) -> Option<&'static core::panic::Location<'static>> {
9394 None
9395 }
9396
9397 fn request_layout(
9398 &mut self,
9399 _: Option<&GlobalElementId>,
9400 _inspector_id: Option<&gpui::InspectorElementId>,
9401 window: &mut Window,
9402 cx: &mut App,
9403 ) -> (gpui::LayoutId, Self::RequestLayoutState) {
9404 let rem_size = self.rem_size(cx);
9405 window.with_rem_size(rem_size, |window| {
9406 self.editor.update(cx, |editor, cx| {
9407 editor.set_style(self.style.clone(), window, cx);
9408
9409 let layout_id = match editor.mode {
9410 EditorMode::SingleLine => {
9411 let rem_size = window.rem_size();
9412 let height = self.style.text.line_height_in_pixels(rem_size);
9413 let mut style = Style::default();
9414 style.size.height = height.into();
9415 style.size.width = relative(1.).into();
9416 window.request_layout(style, None, cx)
9417 }
9418 EditorMode::AutoHeight {
9419 min_lines,
9420 max_lines,
9421 } => {
9422 let editor_handle = cx.entity();
9423 window.request_measured_layout(
9424 Style::default(),
9425 move |known_dimensions, available_space, window, cx| {
9426 editor_handle
9427 .update(cx, |editor, cx| {
9428 compute_auto_height_layout(
9429 editor,
9430 min_lines,
9431 max_lines,
9432 known_dimensions,
9433 available_space.width,
9434 window,
9435 cx,
9436 )
9437 })
9438 .unwrap_or_default()
9439 },
9440 )
9441 }
9442 EditorMode::Minimap { .. } => {
9443 let mut style = Style::default();
9444 style.size.width = relative(1.).into();
9445 style.size.height = relative(1.).into();
9446 window.request_layout(style, None, cx)
9447 }
9448 EditorMode::Full {
9449 sizing_behavior, ..
9450 } => {
9451 let mut style = Style::default();
9452 style.size.width = relative(1.).into();
9453 if sizing_behavior == SizingBehavior::SizeByContent {
9454 let snapshot = editor.snapshot(window, cx);
9455 let line_height =
9456 self.style.text.line_height_in_pixels(window.rem_size());
9457 let scroll_height =
9458 (snapshot.max_point().row().next_row().0 as f32) * line_height;
9459 style.size.height = scroll_height.into();
9460 } else {
9461 style.size.height = relative(1.).into();
9462 }
9463 window.request_layout(style, None, cx)
9464 }
9465 };
9466
9467 (layout_id, EditorRequestLayoutState::default())
9468 })
9469 })
9470 }
9471
9472 fn prepaint(
9473 &mut self,
9474 _: Option<&GlobalElementId>,
9475 _inspector_id: Option<&gpui::InspectorElementId>,
9476 bounds: Bounds<Pixels>,
9477 request_layout: &mut Self::RequestLayoutState,
9478 window: &mut Window,
9479 cx: &mut App,
9480 ) -> Self::PrepaintState {
9481 let _prepaint_depth_guard = request_layout.increment_prepaint_depth();
9482 let text_style = TextStyleRefinement {
9483 font_size: Some(self.style.text.font_size),
9484 line_height: Some(self.style.text.line_height),
9485 ..Default::default()
9486 };
9487
9488 let is_minimap = self.editor.read(cx).mode.is_minimap();
9489 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
9490
9491 if !is_minimap {
9492 let focus_handle = self.editor.focus_handle(cx);
9493 window.set_view_id(self.editor.entity_id());
9494 window.set_focus_handle(&focus_handle, cx);
9495 }
9496
9497 let rem_size = self.rem_size(cx);
9498 window.with_rem_size(rem_size, |window| {
9499 window.with_text_style(Some(text_style), |window| {
9500 window.with_content_mask(Some(ContentMask { bounds }), |window| {
9501 let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| {
9502 (editor.snapshot(window, cx), editor.read_only(cx))
9503 });
9504 let style = &self.style;
9505
9506 let rem_size = window.rem_size();
9507 let font_id = window.text_system().resolve_font(&style.text.font());
9508 let font_size = style.text.font_size.to_pixels(rem_size);
9509 let line_height = style.text.line_height_in_pixels(rem_size);
9510 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
9511 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
9512 let glyph_grid_cell = size(em_advance, line_height);
9513
9514 let gutter_dimensions =
9515 snapshot.gutter_dimensions(font_id, font_size, style, window, cx);
9516 let text_width = bounds.size.width - gutter_dimensions.width;
9517
9518 let settings = EditorSettings::get_global(cx);
9519 let scrollbars_shown = settings.scrollbar.show != ShowScrollbar::Never;
9520 let vertical_scrollbar_width = (scrollbars_shown
9521 && settings.scrollbar.axes.vertical
9522 && self.editor.read(cx).show_scrollbars.vertical)
9523 .then_some(style.scrollbar_width)
9524 .unwrap_or_default();
9525 let minimap_width = self
9526 .get_minimap_width(
9527 &settings.minimap,
9528 scrollbars_shown,
9529 text_width,
9530 em_width,
9531 font_size,
9532 rem_size,
9533 cx,
9534 )
9535 .unwrap_or_default();
9536
9537 let right_margin = minimap_width + vertical_scrollbar_width;
9538
9539 let editor_width =
9540 text_width - gutter_dimensions.margin - 2 * em_width - right_margin;
9541 let editor_margins = EditorMargins {
9542 gutter: gutter_dimensions,
9543 right: right_margin,
9544 };
9545
9546 snapshot = self.editor.update(cx, |editor, cx| {
9547 editor.last_bounds = Some(bounds);
9548 editor.gutter_dimensions = gutter_dimensions;
9549 editor.set_visible_line_count(
9550 (bounds.size.height / line_height) as f64,
9551 window,
9552 cx,
9553 );
9554 editor.set_visible_column_count(f64::from(editor_width / em_advance));
9555
9556 if matches!(
9557 editor.mode,
9558 EditorMode::AutoHeight { .. } | EditorMode::Minimap { .. }
9559 ) {
9560 snapshot
9561 } else {
9562 let wrap_width_for = |column: u32| (column as f32 * em_advance).ceil();
9563 let wrap_width = match editor.soft_wrap_mode(cx) {
9564 SoftWrap::GitDiff => None,
9565 SoftWrap::None => Some(wrap_width_for(MAX_LINE_LEN as u32 / 2)),
9566 SoftWrap::EditorWidth => Some(editor_width),
9567 SoftWrap::Column(column) => Some(wrap_width_for(column)),
9568 SoftWrap::Bounded(column) => {
9569 Some(editor_width.min(wrap_width_for(column)))
9570 }
9571 };
9572
9573 if editor.set_wrap_width(wrap_width, cx) {
9574 editor.snapshot(window, cx)
9575 } else {
9576 snapshot
9577 }
9578 }
9579 });
9580
9581 let hitbox = window.insert_hitbox(bounds, HitboxBehavior::Normal);
9582 let gutter_hitbox = window.insert_hitbox(
9583 gutter_bounds(bounds, gutter_dimensions),
9584 HitboxBehavior::Normal,
9585 );
9586 let text_hitbox = window.insert_hitbox(
9587 Bounds {
9588 origin: gutter_hitbox.top_right(),
9589 size: size(text_width, bounds.size.height),
9590 },
9591 HitboxBehavior::Normal,
9592 );
9593
9594 // Offset the content_bounds from the text_bounds by the gutter margin (which
9595 // is roughly half a character wide) to make hit testing work more like how we want.
9596 let content_offset = point(editor_margins.gutter.margin, Pixels::ZERO);
9597 let content_origin = text_hitbox.origin + content_offset;
9598
9599 let height_in_lines = f64::from(bounds.size.height / line_height);
9600 let max_row = snapshot.max_point().row().as_f64();
9601
9602 // Calculate how much of the editor is clipped by parent containers (e.g., List).
9603 // This allows us to only render lines that are actually visible, which is
9604 // critical for performance when large AutoHeight editors are inside Lists.
9605 let visible_bounds = window.content_mask().bounds;
9606 let clipped_top = (visible_bounds.origin.y - bounds.origin.y).max(px(0.));
9607 let clipped_top_in_lines = f64::from(clipped_top / line_height);
9608 let visible_height_in_lines =
9609 f64::from(visible_bounds.size.height / line_height);
9610
9611 // The max scroll position for the top of the window
9612 let max_scroll_top = if matches!(
9613 snapshot.mode,
9614 EditorMode::SingleLine
9615 | EditorMode::AutoHeight { .. }
9616 | EditorMode::Full {
9617 sizing_behavior: SizingBehavior::ExcludeOverscrollMargin
9618 | SizingBehavior::SizeByContent,
9619 ..
9620 }
9621 ) {
9622 (max_row - height_in_lines + 1.).max(0.)
9623 } else {
9624 let settings = EditorSettings::get_global(cx);
9625 match settings.scroll_beyond_last_line {
9626 ScrollBeyondLastLine::OnePage => max_row,
9627 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
9628 ScrollBeyondLastLine::VerticalScrollMargin => {
9629 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
9630 .max(0.)
9631 }
9632 }
9633 };
9634
9635 // When jumping from one side of a side-by-side diff to the
9636 // other, we autoscroll autoscroll to keep the target range in view.
9637 //
9638 // If our scroll companion has a pending autoscroll request, process it
9639 // first so that both editors render with synchronized scroll positions.
9640 // This is important for split diff views where one editor may prepaint
9641 // before the other.
9642 if let Some(companion) = self
9643 .editor
9644 .read(cx)
9645 .scroll_companion()
9646 .and_then(|c| c.upgrade())
9647 {
9648 if companion.read(cx).scroll_manager.has_autoscroll_request() {
9649 companion.update(cx, |companion_editor, cx| {
9650 let companion_autoscroll_request =
9651 companion_editor.scroll_manager.take_autoscroll_request();
9652 companion_editor.autoscroll_vertically(
9653 bounds,
9654 line_height,
9655 max_scroll_top,
9656 companion_autoscroll_request,
9657 window,
9658 cx,
9659 );
9660 });
9661 snapshot = self
9662 .editor
9663 .update(cx, |editor, cx| editor.snapshot(window, cx));
9664 }
9665 }
9666
9667 let (
9668 autoscroll_request,
9669 autoscroll_containing_element,
9670 needs_horizontal_autoscroll,
9671 ) = self.editor.update(cx, |editor, cx| {
9672 let autoscroll_request = editor.scroll_manager.take_autoscroll_request();
9673
9674 let autoscroll_containing_element =
9675 autoscroll_request.is_some() || editor.has_pending_selection();
9676
9677 let (needs_horizontal_autoscroll, was_scrolled) = editor
9678 .autoscroll_vertically(
9679 bounds,
9680 line_height,
9681 max_scroll_top,
9682 autoscroll_request,
9683 window,
9684 cx,
9685 );
9686 if was_scrolled.0 {
9687 snapshot = editor.snapshot(window, cx);
9688 }
9689 (
9690 autoscroll_request,
9691 autoscroll_containing_element,
9692 needs_horizontal_autoscroll,
9693 )
9694 });
9695
9696 let mut scroll_position = snapshot.scroll_position();
9697 // The scroll position is a fractional point, the whole number of which represents
9698 // the top of the window in terms of display rows.
9699 // We add clipped_top_in_lines to skip rows that are clipped by parent containers,
9700 // but we don't modify scroll_position itself since the parent handles positioning.
9701 let max_row = snapshot.max_point().row();
9702 let start_row = cmp::min(
9703 DisplayRow((scroll_position.y + clipped_top_in_lines).floor() as u32),
9704 max_row,
9705 );
9706 let end_row = cmp::min(
9707 (scroll_position.y + clipped_top_in_lines + visible_height_in_lines).ceil()
9708 as u32,
9709 max_row.next_row().0,
9710 );
9711 let end_row = DisplayRow(end_row);
9712
9713 let row_infos = snapshot // note we only get the visual range
9714 .row_infos(start_row)
9715 .take((start_row..end_row).len())
9716 .collect::<Vec<RowInfo>>();
9717 let is_row_soft_wrapped = |row: usize| {
9718 row_infos
9719 .get(row)
9720 .is_none_or(|info| info.buffer_row.is_none())
9721 };
9722
9723 let start_anchor = if start_row == Default::default() {
9724 Anchor::min()
9725 } else {
9726 snapshot.buffer_snapshot().anchor_before(
9727 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
9728 )
9729 };
9730 let end_anchor = if end_row > max_row {
9731 Anchor::max()
9732 } else {
9733 snapshot.buffer_snapshot().anchor_before(
9734 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
9735 )
9736 };
9737
9738 let mut highlighted_rows = self
9739 .editor
9740 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
9741
9742 let is_light = cx.theme().appearance().is_light();
9743
9744 let mut highlighted_ranges = self
9745 .editor_with_selections(cx)
9746 .map(|editor| {
9747 editor.read(cx).background_highlights_in_range(
9748 start_anchor..end_anchor,
9749 &snapshot.display_snapshot,
9750 cx.theme(),
9751 )
9752 })
9753 .unwrap_or_default();
9754
9755 for (ix, row_info) in row_infos.iter().enumerate() {
9756 let Some(diff_status) = row_info.diff_status else {
9757 continue;
9758 };
9759
9760 let background_color = match diff_status.kind {
9761 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
9762 DiffHunkStatusKind::Deleted => {
9763 cx.theme().colors().version_control_deleted
9764 }
9765 DiffHunkStatusKind::Modified => {
9766 debug_panic!("modified diff status for row info");
9767 continue;
9768 }
9769 };
9770
9771 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
9772
9773 let hollow_highlight = LineHighlight {
9774 background: (background_color.opacity(if is_light {
9775 0.08
9776 } else {
9777 0.06
9778 }))
9779 .into(),
9780 border: Some(if is_light {
9781 background_color.opacity(0.48)
9782 } else {
9783 background_color.opacity(0.36)
9784 }),
9785 include_gutter: true,
9786 type_id: None,
9787 };
9788
9789 let filled_highlight = LineHighlight {
9790 background: solid_background(background_color.opacity(hunk_opacity)),
9791 border: None,
9792 include_gutter: true,
9793 type_id: None,
9794 };
9795
9796 let background = if Self::diff_hunk_hollow(diff_status, cx) {
9797 hollow_highlight
9798 } else {
9799 filled_highlight
9800 };
9801
9802 let base_display_point =
9803 DisplayPoint::new(start_row + DisplayRow(ix as u32), 0);
9804
9805 highlighted_rows
9806 .entry(base_display_point.row())
9807 .or_insert(background);
9808 }
9809
9810 // Add diff review drag selection highlight to text area
9811 if let Some(drag_state) = &self.editor.read(cx).diff_review_drag_state {
9812 let range = drag_state.row_range(&snapshot.display_snapshot);
9813 let start_row = range.start().0;
9814 let end_row = range.end().0;
9815 let drag_highlight_color =
9816 cx.theme().colors().editor_active_line_background;
9817 let drag_highlight = LineHighlight {
9818 background: solid_background(drag_highlight_color),
9819 border: Some(cx.theme().colors().border_focused),
9820 include_gutter: true,
9821 type_id: None,
9822 };
9823 for row_num in start_row..=end_row {
9824 highlighted_rows
9825 .entry(DisplayRow(row_num))
9826 .or_insert(drag_highlight);
9827 }
9828 }
9829
9830 let highlighted_gutter_ranges =
9831 self.editor.read(cx).gutter_highlights_in_range(
9832 start_anchor..end_anchor,
9833 &snapshot.display_snapshot,
9834 cx,
9835 );
9836
9837 let document_colors = self
9838 .editor
9839 .read(cx)
9840 .colors
9841 .as_ref()
9842 .map(|colors| colors.editor_display_highlights(&snapshot));
9843 let redacted_ranges = self.editor.read(cx).redacted_ranges(
9844 start_anchor..end_anchor,
9845 &snapshot.display_snapshot,
9846 cx,
9847 );
9848
9849 let (local_selections, selected_buffer_ids, latest_selection_anchors): (
9850 Vec<Selection<Point>>,
9851 Vec<BufferId>,
9852 HashMap<BufferId, Anchor>,
9853 ) = self
9854 .editor_with_selections(cx)
9855 .map(|editor| {
9856 editor.update(cx, |editor, cx| {
9857 let all_selections =
9858 editor.selections.all::<Point>(&snapshot.display_snapshot);
9859 let all_anchor_selections =
9860 editor.selections.all_anchors(&snapshot.display_snapshot);
9861 let selected_buffer_ids =
9862 if editor.buffer_kind(cx) == ItemBufferKind::Singleton {
9863 Vec::new()
9864 } else {
9865 let mut selected_buffer_ids =
9866 Vec::with_capacity(all_selections.len());
9867
9868 for selection in all_selections {
9869 for buffer_id in snapshot
9870 .buffer_snapshot()
9871 .buffer_ids_for_range(selection.range())
9872 {
9873 if selected_buffer_ids.last() != Some(&buffer_id) {
9874 selected_buffer_ids.push(buffer_id);
9875 }
9876 }
9877 }
9878
9879 selected_buffer_ids
9880 };
9881
9882 let mut selections = editor.selections.disjoint_in_range(
9883 start_anchor..end_anchor,
9884 &snapshot.display_snapshot,
9885 );
9886 selections
9887 .extend(editor.selections.pending(&snapshot.display_snapshot));
9888
9889 let mut anchors_by_buffer: HashMap<BufferId, (usize, Anchor)> =
9890 HashMap::default();
9891 for selection in all_anchor_selections.iter() {
9892 let head = selection.head();
9893 if let Some(buffer_id) = head.text_anchor.buffer_id {
9894 anchors_by_buffer
9895 .entry(buffer_id)
9896 .and_modify(|(latest_id, latest_anchor)| {
9897 if selection.id > *latest_id {
9898 *latest_id = selection.id;
9899 *latest_anchor = head;
9900 }
9901 })
9902 .or_insert((selection.id, head));
9903 }
9904 }
9905 let latest_selection_anchors = anchors_by_buffer
9906 .into_iter()
9907 .map(|(buffer_id, (_, anchor))| (buffer_id, anchor))
9908 .collect();
9909
9910 (selections, selected_buffer_ids, latest_selection_anchors)
9911 })
9912 })
9913 .unwrap_or_else(|| (Vec::new(), Vec::new(), HashMap::default()));
9914
9915 let (selections, mut active_rows, newest_selection_head) = self
9916 .layout_selections(
9917 start_anchor,
9918 end_anchor,
9919 &local_selections,
9920 &snapshot,
9921 start_row,
9922 end_row,
9923 window,
9924 cx,
9925 );
9926
9927 // relative rows are based on newest selection, even outside the visible area
9928 let current_selection_head = self.editor.update(cx, |editor, cx| {
9929 (editor.selections.count() != 0).then(|| {
9930 let newest = editor
9931 .selections
9932 .newest::<Point>(&editor.display_snapshot(cx));
9933
9934 SelectionLayout::new(
9935 newest,
9936 editor.selections.line_mode(),
9937 editor.cursor_offset_on_selection,
9938 editor.cursor_shape,
9939 &snapshot,
9940 true,
9941 true,
9942 None,
9943 )
9944 .head
9945 .row()
9946 })
9947 });
9948
9949 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
9950 editor.active_breakpoints(start_row..end_row, window, cx)
9951 });
9952 for (display_row, (_, bp, state)) in &breakpoint_rows {
9953 if bp.is_enabled() && state.is_none_or(|s| s.verified) {
9954 active_rows.entry(*display_row).or_default().breakpoint = true;
9955 }
9956 }
9957
9958 let line_numbers = self.layout_line_numbers(
9959 Some(&gutter_hitbox),
9960 gutter_dimensions,
9961 line_height,
9962 scroll_position,
9963 start_row..end_row,
9964 &row_infos,
9965 &active_rows,
9966 current_selection_head,
9967 &snapshot,
9968 window,
9969 cx,
9970 );
9971
9972 // We add the gutter breakpoint indicator to breakpoint_rows after painting
9973 // line numbers so we don't paint a line number debug accent color if a user
9974 // has their mouse over that line when a breakpoint isn't there
9975 self.editor.update(cx, |editor, _| {
9976 if let Some(phantom_breakpoint) = &mut editor
9977 .gutter_breakpoint_indicator
9978 .0
9979 .filter(|phantom_breakpoint| phantom_breakpoint.is_active)
9980 {
9981 // Is there a non-phantom breakpoint on this line?
9982 phantom_breakpoint.collides_with_existing_breakpoint = true;
9983 breakpoint_rows
9984 .entry(phantom_breakpoint.display_row)
9985 .or_insert_with(|| {
9986 let position = snapshot.display_point_to_anchor(
9987 DisplayPoint::new(phantom_breakpoint.display_row, 0),
9988 Bias::Right,
9989 );
9990 let breakpoint = Breakpoint::new_standard();
9991 phantom_breakpoint.collides_with_existing_breakpoint = false;
9992 (position, breakpoint, None)
9993 });
9994 }
9995 });
9996
9997 let mut expand_toggles =
9998 window.with_element_namespace("expand_toggles", |window| {
9999 self.layout_expand_toggles(
10000 &gutter_hitbox,
10001 gutter_dimensions,
10002 em_width,
10003 line_height,
10004 scroll_position,
10005 &row_infos,
10006 window,
10007 cx,
10008 )
10009 });
10010
10011 let mut crease_toggles =
10012 window.with_element_namespace("crease_toggles", |window| {
10013 self.layout_crease_toggles(
10014 start_row..end_row,
10015 &row_infos,
10016 &active_rows,
10017 &snapshot,
10018 window,
10019 cx,
10020 )
10021 });
10022 let crease_trailers =
10023 window.with_element_namespace("crease_trailers", |window| {
10024 self.layout_crease_trailers(
10025 row_infos.iter().cloned(),
10026 &snapshot,
10027 window,
10028 cx,
10029 )
10030 });
10031
10032 let display_hunks = self.layout_gutter_diff_hunks(
10033 line_height,
10034 &gutter_hitbox,
10035 start_row..end_row,
10036 &snapshot,
10037 window,
10038 cx,
10039 );
10040
10041 Self::layout_word_diff_highlights(
10042 &display_hunks,
10043 &row_infos,
10044 start_row,
10045 &snapshot,
10046 &mut highlighted_ranges,
10047 cx,
10048 );
10049
10050 let merged_highlighted_ranges =
10051 if let Some((_, colors)) = document_colors.as_ref() {
10052 &highlighted_ranges
10053 .clone()
10054 .into_iter()
10055 .chain(colors.clone())
10056 .collect()
10057 } else {
10058 &highlighted_ranges
10059 };
10060 let bg_segments_per_row = Self::bg_segments_per_row(
10061 start_row..end_row,
10062 &selections,
10063 &merged_highlighted_ranges,
10064 self.style.background,
10065 );
10066
10067 let mut line_layouts = Self::layout_lines(
10068 start_row..end_row,
10069 &snapshot,
10070 &self.style,
10071 editor_width,
10072 is_row_soft_wrapped,
10073 &bg_segments_per_row,
10074 window,
10075 cx,
10076 );
10077 let new_renderer_widths = (!is_minimap).then(|| {
10078 line_layouts
10079 .iter()
10080 .flat_map(|layout| &layout.fragments)
10081 .filter_map(|fragment| {
10082 if let LineFragment::Element { id, size, .. } = fragment {
10083 Some((*id, size.width))
10084 } else {
10085 None
10086 }
10087 })
10088 });
10089 if new_renderer_widths.is_some_and(|new_renderer_widths| {
10090 self.editor.update(cx, |editor, cx| {
10091 editor.update_renderer_widths(new_renderer_widths, cx)
10092 })
10093 }) {
10094 // If the fold widths have changed, we need to prepaint
10095 // the element again to account for any changes in
10096 // wrapping.
10097 if request_layout.can_prepaint() {
10098 return self.prepaint(
10099 None,
10100 _inspector_id,
10101 bounds,
10102 request_layout,
10103 window,
10104 cx,
10105 );
10106 } else {
10107 debug_panic!(concat!(
10108 "skipping recursive prepaint at max depth. ",
10109 "renderer widths may be stale."
10110 ));
10111 }
10112 }
10113
10114 let longest_line_blame_width = self
10115 .editor
10116 .update(cx, |editor, cx| {
10117 if !editor.show_git_blame_inline {
10118 return None;
10119 }
10120 let blame = editor.blame.as_ref()?;
10121 let (_, blame_entry) = blame
10122 .update(cx, |blame, cx| {
10123 let row_infos =
10124 snapshot.row_infos(snapshot.longest_row()).next()?;
10125 blame.blame_for_rows(&[row_infos], cx).next()
10126 })
10127 .flatten()?;
10128 let mut element = render_inline_blame_entry(blame_entry, style, cx)?;
10129 let inline_blame_padding =
10130 ProjectSettings::get_global(cx).git.inline_blame.padding as f32
10131 * em_advance;
10132 Some(
10133 element
10134 .layout_as_root(AvailableSpace::min_size(), window, cx)
10135 .width
10136 + inline_blame_padding,
10137 )
10138 })
10139 .unwrap_or(Pixels::ZERO);
10140
10141 let longest_line_width = layout_line(
10142 snapshot.longest_row(),
10143 &snapshot,
10144 style,
10145 editor_width,
10146 is_row_soft_wrapped,
10147 window,
10148 cx,
10149 )
10150 .width;
10151
10152 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
10153 text_hitbox.bounds,
10154 glyph_grid_cell,
10155 size(
10156 longest_line_width,
10157 Pixels::from(max_row.as_f64() * f64::from(line_height)),
10158 ),
10159 longest_line_blame_width,
10160 EditorSettings::get_global(cx),
10161 );
10162
10163 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
10164
10165 let sticky_header_excerpt = if snapshot.buffer_snapshot().show_headers() {
10166 snapshot.sticky_header_excerpt(scroll_position.y)
10167 } else {
10168 None
10169 };
10170 let sticky_header_excerpt_id =
10171 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
10172
10173 let blocks = (!is_minimap)
10174 .then(|| {
10175 window.with_element_namespace("blocks", |window| {
10176 self.render_blocks(
10177 start_row..end_row,
10178 &snapshot,
10179 &hitbox,
10180 &text_hitbox,
10181 editor_width,
10182 &mut scroll_width,
10183 &editor_margins,
10184 em_width,
10185 gutter_dimensions.full_width(),
10186 line_height,
10187 &mut line_layouts,
10188 &local_selections,
10189 &selected_buffer_ids,
10190 &latest_selection_anchors,
10191 is_row_soft_wrapped,
10192 sticky_header_excerpt_id,
10193 window,
10194 cx,
10195 )
10196 })
10197 })
10198 .unwrap_or_default();
10199 let RenderBlocksOutput {
10200 mut blocks,
10201 row_block_types,
10202 resized_blocks,
10203 } = blocks;
10204 if let Some(resized_blocks) = resized_blocks {
10205 self.editor.update(cx, |editor, cx| {
10206 editor.resize_blocks(
10207 resized_blocks,
10208 autoscroll_request.map(|(autoscroll, _)| autoscroll),
10209 cx,
10210 )
10211 });
10212 if request_layout.can_prepaint() {
10213 return self.prepaint(
10214 None,
10215 _inspector_id,
10216 bounds,
10217 request_layout,
10218 window,
10219 cx,
10220 );
10221 } else {
10222 debug_panic!(concat!(
10223 "skipping recursive prepaint at max depth. ",
10224 "block layout may be stale."
10225 ));
10226 }
10227 }
10228
10229 let sticky_buffer_header = if self.should_show_buffer_headers() {
10230 sticky_header_excerpt.map(|sticky_header_excerpt| {
10231 window.with_element_namespace("blocks", |window| {
10232 self.layout_sticky_buffer_header(
10233 sticky_header_excerpt,
10234 scroll_position,
10235 line_height,
10236 right_margin,
10237 &snapshot,
10238 &hitbox,
10239 &selected_buffer_ids,
10240 &blocks,
10241 &latest_selection_anchors,
10242 window,
10243 cx,
10244 )
10245 })
10246 })
10247 } else {
10248 None
10249 };
10250
10251 let start_buffer_row =
10252 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot()).row);
10253 let end_buffer_row =
10254 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot()).row);
10255
10256 let scroll_max: gpui::Point<ScrollPixelOffset> = point(
10257 ScrollPixelOffset::from(
10258 ((scroll_width - editor_width) / em_advance).max(0.0),
10259 ),
10260 max_scroll_top,
10261 );
10262
10263 self.editor.update(cx, |editor, cx| {
10264 if editor.scroll_manager.clamp_scroll_left(scroll_max.x) {
10265 scroll_position.x = scroll_position.x.min(scroll_max.x);
10266 }
10267
10268 if needs_horizontal_autoscroll.0
10269 && let Some(new_scroll_position) = editor.autoscroll_horizontally(
10270 start_row,
10271 editor_width,
10272 scroll_width,
10273 em_advance,
10274 &line_layouts,
10275 autoscroll_request,
10276 window,
10277 cx,
10278 )
10279 {
10280 scroll_position = new_scroll_position;
10281 }
10282 });
10283
10284 let scroll_pixel_position = point(
10285 scroll_position.x * f64::from(em_advance),
10286 scroll_position.y * f64::from(line_height),
10287 );
10288 let sticky_headers = if !is_minimap
10289 && is_singleton
10290 && EditorSettings::get_global(cx).sticky_scroll.enabled
10291 {
10292 let relative = self.editor.read(cx).relative_line_numbers(cx);
10293 self.layout_sticky_headers(
10294 &snapshot,
10295 editor_width,
10296 is_row_soft_wrapped,
10297 line_height,
10298 scroll_pixel_position,
10299 content_origin,
10300 &gutter_dimensions,
10301 &gutter_hitbox,
10302 &text_hitbox,
10303 &style,
10304 relative,
10305 current_selection_head,
10306 window,
10307 cx,
10308 )
10309 } else {
10310 None
10311 };
10312 self.editor.update(cx, |editor, _| {
10313 editor.scroll_manager.set_sticky_header_line_count(
10314 sticky_headers.as_ref().map_or(0, |h| h.lines.len()),
10315 );
10316 });
10317 let indent_guides = self.layout_indent_guides(
10318 content_origin,
10319 text_hitbox.origin,
10320 start_buffer_row..end_buffer_row,
10321 scroll_pixel_position,
10322 line_height,
10323 &snapshot,
10324 window,
10325 cx,
10326 );
10327
10328 let crease_trailers =
10329 window.with_element_namespace("crease_trailers", |window| {
10330 self.prepaint_crease_trailers(
10331 crease_trailers,
10332 &line_layouts,
10333 line_height,
10334 content_origin,
10335 scroll_pixel_position,
10336 em_width,
10337 window,
10338 cx,
10339 )
10340 });
10341
10342 let (edit_prediction_popover, edit_prediction_popover_origin) = self
10343 .editor
10344 .update(cx, |editor, cx| {
10345 editor.render_edit_prediction_popover(
10346 &text_hitbox.bounds,
10347 content_origin,
10348 right_margin,
10349 &snapshot,
10350 start_row..end_row,
10351 scroll_position.y,
10352 scroll_position.y + height_in_lines,
10353 &line_layouts,
10354 line_height,
10355 scroll_position,
10356 scroll_pixel_position,
10357 newest_selection_head,
10358 editor_width,
10359 style,
10360 window,
10361 cx,
10362 )
10363 })
10364 .unzip();
10365
10366 let mut inline_diagnostics = self.layout_inline_diagnostics(
10367 &line_layouts,
10368 &crease_trailers,
10369 &row_block_types,
10370 content_origin,
10371 scroll_position,
10372 scroll_pixel_position,
10373 edit_prediction_popover_origin,
10374 start_row,
10375 end_row,
10376 line_height,
10377 em_width,
10378 style,
10379 window,
10380 cx,
10381 );
10382
10383 let mut inline_blame_layout = None;
10384 let mut inline_code_actions = None;
10385 if let Some(newest_selection_head) = newest_selection_head {
10386 let display_row = newest_selection_head.row();
10387 if (start_row..end_row).contains(&display_row)
10388 && !row_block_types.contains_key(&display_row)
10389 {
10390 inline_code_actions = self.layout_inline_code_actions(
10391 newest_selection_head,
10392 content_origin,
10393 scroll_position,
10394 scroll_pixel_position,
10395 line_height,
10396 &snapshot,
10397 window,
10398 cx,
10399 );
10400
10401 let line_ix = display_row.minus(start_row) as usize;
10402 if let (Some(row_info), Some(line_layout), Some(crease_trailer)) = (
10403 row_infos.get(line_ix),
10404 line_layouts.get(line_ix),
10405 crease_trailers.get(line_ix),
10406 ) {
10407 let crease_trailer_layout = crease_trailer.as_ref();
10408 if let Some(layout) = self.layout_inline_blame(
10409 display_row,
10410 row_info,
10411 line_layout,
10412 crease_trailer_layout,
10413 em_width,
10414 content_origin,
10415 scroll_position,
10416 scroll_pixel_position,
10417 line_height,
10418 window,
10419 cx,
10420 ) {
10421 inline_blame_layout = Some(layout);
10422 // Blame overrides inline diagnostics
10423 inline_diagnostics.remove(&display_row);
10424 }
10425 } else {
10426 log::error!(
10427 "bug: line_ix {} is out of bounds - row_infos.len(): {}, \
10428 line_layouts.len(): {}, \
10429 crease_trailers.len(): {}",
10430 line_ix,
10431 row_infos.len(),
10432 line_layouts.len(),
10433 crease_trailers.len(),
10434 );
10435 }
10436 }
10437 }
10438
10439 let blamed_display_rows = self.layout_blame_entries(
10440 &row_infos,
10441 em_width,
10442 scroll_position,
10443 line_height,
10444 &gutter_hitbox,
10445 gutter_dimensions.git_blame_entries_width,
10446 window,
10447 cx,
10448 );
10449
10450 let line_elements = self.prepaint_lines(
10451 start_row,
10452 &mut line_layouts,
10453 line_height,
10454 scroll_position,
10455 scroll_pixel_position,
10456 content_origin,
10457 window,
10458 cx,
10459 );
10460
10461 window.with_element_namespace("blocks", |window| {
10462 self.layout_blocks(
10463 &mut blocks,
10464 &hitbox,
10465 line_height,
10466 scroll_position,
10467 scroll_pixel_position,
10468 window,
10469 cx,
10470 );
10471 });
10472
10473 let cursors = self.collect_cursors(&snapshot, cx);
10474 let visible_row_range = start_row..end_row;
10475 let non_visible_cursors = cursors
10476 .iter()
10477 .any(|c| !visible_row_range.contains(&c.0.row()));
10478
10479 let visible_cursors = self.layout_visible_cursors(
10480 &snapshot,
10481 &selections,
10482 &row_block_types,
10483 start_row..end_row,
10484 &line_layouts,
10485 &text_hitbox,
10486 content_origin,
10487 scroll_position,
10488 scroll_pixel_position,
10489 line_height,
10490 em_width,
10491 em_advance,
10492 autoscroll_containing_element,
10493 &redacted_ranges,
10494 window,
10495 cx,
10496 );
10497
10498 let scrollbars_layout = self.layout_scrollbars(
10499 &snapshot,
10500 &scrollbar_layout_information,
10501 content_offset,
10502 scroll_position,
10503 non_visible_cursors,
10504 right_margin,
10505 editor_width,
10506 window,
10507 cx,
10508 );
10509
10510 let gutter_settings = EditorSettings::get_global(cx).gutter;
10511
10512 let context_menu_layout =
10513 if let Some(newest_selection_head) = newest_selection_head {
10514 let newest_selection_point =
10515 newest_selection_head.to_point(&snapshot.display_snapshot);
10516 if (start_row..end_row).contains(&newest_selection_head.row()) {
10517 self.layout_cursor_popovers(
10518 line_height,
10519 &text_hitbox,
10520 content_origin,
10521 right_margin,
10522 start_row,
10523 scroll_pixel_position,
10524 &line_layouts,
10525 newest_selection_head,
10526 newest_selection_point,
10527 style,
10528 window,
10529 cx,
10530 )
10531 } else {
10532 None
10533 }
10534 } else {
10535 None
10536 };
10537
10538 self.layout_gutter_menu(
10539 line_height,
10540 &text_hitbox,
10541 content_origin,
10542 right_margin,
10543 scroll_pixel_position,
10544 gutter_dimensions.width - gutter_dimensions.left_padding,
10545 window,
10546 cx,
10547 );
10548
10549 let test_indicators = if gutter_settings.runnables {
10550 self.layout_run_indicators(
10551 line_height,
10552 start_row..end_row,
10553 &row_infos,
10554 scroll_position,
10555 &gutter_dimensions,
10556 &gutter_hitbox,
10557 &snapshot,
10558 &mut breakpoint_rows,
10559 window,
10560 cx,
10561 )
10562 } else {
10563 Vec::new()
10564 };
10565
10566 let show_breakpoints = snapshot
10567 .show_breakpoints
10568 .unwrap_or(gutter_settings.breakpoints);
10569 let breakpoints = if show_breakpoints {
10570 self.layout_breakpoints(
10571 line_height,
10572 start_row..end_row,
10573 scroll_position,
10574 &gutter_dimensions,
10575 &gutter_hitbox,
10576 &snapshot,
10577 breakpoint_rows,
10578 &row_infos,
10579 window,
10580 cx,
10581 )
10582 } else {
10583 Vec::new()
10584 };
10585
10586 let git_gutter_width = Self::gutter_strip_width(line_height)
10587 + gutter_dimensions
10588 .git_blame_entries_width
10589 .unwrap_or_default();
10590 let available_width = gutter_dimensions.left_padding - git_gutter_width;
10591
10592 let max_line_number_length = self
10593 .editor
10594 .read(cx)
10595 .buffer()
10596 .read(cx)
10597 .snapshot(cx)
10598 .widest_line_number()
10599 .ilog10()
10600 + 1;
10601
10602 let diff_review_button = self
10603 .should_render_diff_review_button(
10604 start_row..end_row,
10605 &row_infos,
10606 &snapshot,
10607 cx,
10608 )
10609 .map(|(display_row, buffer_row)| {
10610 let is_wide = max_line_number_length
10611 >= EditorSettings::get_global(cx).gutter.min_line_number_digits
10612 as u32
10613 && buffer_row.is_some_and(|row| {
10614 (row + 1).ilog10() + 1 == max_line_number_length
10615 })
10616 || gutter_dimensions.right_padding == px(0.);
10617
10618 let button_width = if is_wide {
10619 available_width - px(6.)
10620 } else {
10621 available_width + em_width - px(6.)
10622 };
10623
10624 let button = self.editor.update(cx, |editor, cx| {
10625 editor
10626 .render_diff_review_button(display_row, button_width, cx)
10627 .into_any_element()
10628 });
10629 prepaint_gutter_button(
10630 button,
10631 display_row,
10632 line_height,
10633 &gutter_dimensions,
10634 scroll_position,
10635 &gutter_hitbox,
10636 window,
10637 cx,
10638 )
10639 });
10640
10641 self.layout_signature_help(
10642 &hitbox,
10643 content_origin,
10644 scroll_pixel_position,
10645 newest_selection_head,
10646 start_row,
10647 &line_layouts,
10648 line_height,
10649 em_width,
10650 context_menu_layout,
10651 window,
10652 cx,
10653 );
10654
10655 if !cx.has_active_drag() {
10656 self.layout_hover_popovers(
10657 &snapshot,
10658 &hitbox,
10659 start_row..end_row,
10660 content_origin,
10661 scroll_pixel_position,
10662 &line_layouts,
10663 line_height,
10664 em_width,
10665 context_menu_layout,
10666 window,
10667 cx,
10668 );
10669
10670 self.layout_blame_popover(&snapshot, &hitbox, line_height, window, cx);
10671 }
10672
10673 let mouse_context_menu = self.layout_mouse_context_menu(
10674 &snapshot,
10675 start_row..end_row,
10676 content_origin,
10677 window,
10678 cx,
10679 );
10680
10681 window.with_element_namespace("crease_toggles", |window| {
10682 self.prepaint_crease_toggles(
10683 &mut crease_toggles,
10684 line_height,
10685 &gutter_dimensions,
10686 gutter_settings,
10687 scroll_pixel_position,
10688 &gutter_hitbox,
10689 window,
10690 cx,
10691 )
10692 });
10693
10694 window.with_element_namespace("expand_toggles", |window| {
10695 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
10696 });
10697
10698 let wrap_guides = self.layout_wrap_guides(
10699 em_advance,
10700 scroll_position,
10701 content_origin,
10702 scrollbars_layout.as_ref(),
10703 vertical_scrollbar_width,
10704 &hitbox,
10705 window,
10706 cx,
10707 );
10708
10709 let minimap = window.with_element_namespace("minimap", |window| {
10710 self.layout_minimap(
10711 &snapshot,
10712 minimap_width,
10713 scroll_position,
10714 &scrollbar_layout_information,
10715 scrollbars_layout.as_ref(),
10716 window,
10717 cx,
10718 )
10719 });
10720
10721 let invisible_symbol_font_size = font_size / 2.;
10722 let whitespace_map = &self
10723 .editor
10724 .read(cx)
10725 .buffer
10726 .read(cx)
10727 .language_settings(cx)
10728 .whitespace_map;
10729
10730 let tab_char = whitespace_map.tab.clone();
10731 let tab_len = tab_char.len();
10732 let tab_invisible = window.text_system().shape_line(
10733 tab_char,
10734 invisible_symbol_font_size,
10735 &[TextRun {
10736 len: tab_len,
10737 font: self.style.text.font(),
10738 color: cx.theme().colors().editor_invisible,
10739 ..Default::default()
10740 }],
10741 None,
10742 );
10743
10744 let space_char = whitespace_map.space.clone();
10745 let space_len = space_char.len();
10746 let space_invisible = window.text_system().shape_line(
10747 space_char,
10748 invisible_symbol_font_size,
10749 &[TextRun {
10750 len: space_len,
10751 font: self.style.text.font(),
10752 color: cx.theme().colors().editor_invisible,
10753 ..Default::default()
10754 }],
10755 None,
10756 );
10757
10758 let mode = snapshot.mode.clone();
10759
10760 let (diff_hunk_controls, diff_hunk_control_bounds) = if is_read_only {
10761 (vec![], vec![])
10762 } else {
10763 self.layout_diff_hunk_controls(
10764 start_row..end_row,
10765 &row_infos,
10766 &text_hitbox,
10767 newest_selection_head,
10768 line_height,
10769 right_margin,
10770 scroll_pixel_position,
10771 &display_hunks,
10772 &highlighted_rows,
10773 self.editor.clone(),
10774 window,
10775 cx,
10776 )
10777 };
10778
10779 let position_map = Rc::new(PositionMap {
10780 size: bounds.size,
10781 visible_row_range,
10782 scroll_position,
10783 scroll_pixel_position,
10784 scroll_max,
10785 line_layouts,
10786 line_height,
10787 em_width,
10788 em_advance,
10789 snapshot,
10790 text_align: self.style.text.text_align,
10791 content_width: text_hitbox.size.width,
10792 gutter_hitbox: gutter_hitbox.clone(),
10793 text_hitbox: text_hitbox.clone(),
10794 inline_blame_bounds: inline_blame_layout
10795 .as_ref()
10796 .map(|layout| (layout.bounds, layout.buffer_id, layout.entry.clone())),
10797 display_hunks: display_hunks.clone(),
10798 diff_hunk_control_bounds,
10799 });
10800
10801 self.editor.update(cx, |editor, _| {
10802 editor.last_position_map = Some(position_map.clone())
10803 });
10804
10805 EditorLayout {
10806 mode,
10807 position_map,
10808 visible_display_row_range: start_row..end_row,
10809 wrap_guides,
10810 indent_guides,
10811 hitbox,
10812 gutter_hitbox,
10813 display_hunks,
10814 content_origin,
10815 scrollbars_layout,
10816 minimap,
10817 active_rows,
10818 highlighted_rows,
10819 highlighted_ranges,
10820 highlighted_gutter_ranges,
10821 redacted_ranges,
10822 document_colors,
10823 line_elements,
10824 line_numbers,
10825 blamed_display_rows,
10826 inline_diagnostics,
10827 inline_blame_layout,
10828 inline_code_actions,
10829 blocks,
10830 cursors,
10831 visible_cursors,
10832 selections,
10833 edit_prediction_popover,
10834 diff_hunk_controls,
10835 mouse_context_menu,
10836 test_indicators,
10837 breakpoints,
10838 diff_review_button,
10839 crease_toggles,
10840 crease_trailers,
10841 tab_invisible,
10842 space_invisible,
10843 sticky_buffer_header,
10844 sticky_headers,
10845 expand_toggles,
10846 text_align: self.style.text.text_align,
10847 content_width: text_hitbox.size.width,
10848 }
10849 })
10850 })
10851 })
10852 }
10853
10854 fn paint(
10855 &mut self,
10856 _: Option<&GlobalElementId>,
10857 _inspector_id: Option<&gpui::InspectorElementId>,
10858 bounds: Bounds<gpui::Pixels>,
10859 _: &mut Self::RequestLayoutState,
10860 layout: &mut Self::PrepaintState,
10861 window: &mut Window,
10862 cx: &mut App,
10863 ) {
10864 if !layout.mode.is_minimap() {
10865 let focus_handle = self.editor.focus_handle(cx);
10866 let key_context = self
10867 .editor
10868 .update(cx, |editor, cx| editor.key_context(window, cx));
10869
10870 window.set_key_context(key_context);
10871 window.handle_input(
10872 &focus_handle,
10873 ElementInputHandler::new(bounds, self.editor.clone()),
10874 cx,
10875 );
10876 self.register_actions(window, cx);
10877 self.register_key_listeners(window, cx, layout);
10878 }
10879
10880 let text_style = TextStyleRefinement {
10881 font_size: Some(self.style.text.font_size),
10882 line_height: Some(self.style.text.line_height),
10883 ..Default::default()
10884 };
10885 let rem_size = self.rem_size(cx);
10886 window.with_rem_size(rem_size, |window| {
10887 window.with_text_style(Some(text_style), |window| {
10888 window.with_content_mask(Some(ContentMask { bounds }), |window| {
10889 self.paint_mouse_listeners(layout, window, cx);
10890 self.paint_background(layout, window, cx);
10891 self.paint_indent_guides(layout, window, cx);
10892
10893 if layout.gutter_hitbox.size.width > Pixels::ZERO {
10894 self.paint_blamed_display_rows(layout, window, cx);
10895 self.paint_line_numbers(layout, window, cx);
10896 }
10897
10898 self.paint_text(layout, window, cx);
10899
10900 if layout.gutter_hitbox.size.width > Pixels::ZERO {
10901 self.paint_gutter_highlights(layout, window, cx);
10902 self.paint_gutter_indicators(layout, window, cx);
10903 }
10904
10905 if !layout.blocks.is_empty() {
10906 window.with_element_namespace("blocks", |window| {
10907 self.paint_blocks(layout, window, cx);
10908 });
10909 }
10910
10911 window.with_element_namespace("blocks", |window| {
10912 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
10913 sticky_header.paint(window, cx)
10914 }
10915 });
10916
10917 self.paint_sticky_headers(layout, window, cx);
10918 self.paint_minimap(layout, window, cx);
10919 self.paint_scrollbars(layout, window, cx);
10920 self.paint_edit_prediction_popover(layout, window, cx);
10921 self.paint_mouse_context_menu(layout, window, cx);
10922
10923 if let Some(overlay_painter) = self.overlay_painter.take() {
10924 let data = OverlayPainterData {
10925 editor: &self.editor,
10926 snapshot: &layout.position_map.snapshot,
10927 scroll_position: layout.position_map.snapshot.scroll_position(),
10928 line_height: layout.position_map.line_height,
10929 visible_row_range: layout.visible_display_row_range.clone(),
10930 hitbox: &layout.hitbox,
10931 };
10932 overlay_painter(data, window, cx);
10933 }
10934 });
10935 })
10936 })
10937 }
10938}
10939
10940pub(super) fn gutter_bounds(
10941 editor_bounds: Bounds<Pixels>,
10942 gutter_dimensions: GutterDimensions,
10943) -> Bounds<Pixels> {
10944 Bounds {
10945 origin: editor_bounds.origin,
10946 size: size(gutter_dimensions.width, editor_bounds.size.height),
10947 }
10948}
10949
10950#[derive(Clone, Copy)]
10951struct ContextMenuLayout {
10952 y_flipped: bool,
10953 bounds: Bounds<Pixels>,
10954}
10955
10956/// Holds information required for layouting the editor scrollbars.
10957struct ScrollbarLayoutInformation {
10958 /// The bounds of the editor area (excluding the content offset).
10959 editor_bounds: Bounds<Pixels>,
10960 /// The available range to scroll within the document.
10961 scroll_range: Size<Pixels>,
10962 /// The space available for one glyph in the editor.
10963 glyph_grid_cell: Size<Pixels>,
10964}
10965
10966impl ScrollbarLayoutInformation {
10967 pub fn new(
10968 editor_bounds: Bounds<Pixels>,
10969 glyph_grid_cell: Size<Pixels>,
10970 document_size: Size<Pixels>,
10971 longest_line_blame_width: Pixels,
10972 settings: &EditorSettings,
10973 ) -> Self {
10974 let vertical_overscroll = match settings.scroll_beyond_last_line {
10975 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
10976 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
10977 ScrollBeyondLastLine::VerticalScrollMargin => {
10978 (1.0 + settings.vertical_scroll_margin) as f32 * glyph_grid_cell.height
10979 }
10980 };
10981
10982 let overscroll = size(longest_line_blame_width, vertical_overscroll);
10983
10984 ScrollbarLayoutInformation {
10985 editor_bounds,
10986 scroll_range: document_size + overscroll,
10987 glyph_grid_cell,
10988 }
10989 }
10990}
10991
10992impl IntoElement for EditorElement {
10993 type Element = Self;
10994
10995 fn into_element(self) -> Self::Element {
10996 self
10997 }
10998}
10999
11000pub struct EditorLayout {
11001 position_map: Rc<PositionMap>,
11002 hitbox: Hitbox,
11003 gutter_hitbox: Hitbox,
11004 content_origin: gpui::Point<Pixels>,
11005 scrollbars_layout: Option<EditorScrollbars>,
11006 minimap: Option<MinimapLayout>,
11007 mode: EditorMode,
11008 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
11009 indent_guides: Option<Vec<IndentGuideLayout>>,
11010 visible_display_row_range: Range<DisplayRow>,
11011 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
11012 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
11013 line_elements: SmallVec<[AnyElement; 1]>,
11014 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
11015 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
11016 blamed_display_rows: Option<Vec<AnyElement>>,
11017 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
11018 inline_blame_layout: Option<InlineBlameLayout>,
11019 inline_code_actions: Option<AnyElement>,
11020 blocks: Vec<BlockLayout>,
11021 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
11022 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
11023 redacted_ranges: Vec<Range<DisplayPoint>>,
11024 cursors: Vec<(DisplayPoint, Hsla)>,
11025 visible_cursors: Vec<CursorLayout>,
11026 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
11027 test_indicators: Vec<AnyElement>,
11028 breakpoints: Vec<AnyElement>,
11029 diff_review_button: Option<AnyElement>,
11030 crease_toggles: Vec<Option<AnyElement>>,
11031 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
11032 diff_hunk_controls: Vec<AnyElement>,
11033 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
11034 edit_prediction_popover: Option<AnyElement>,
11035 mouse_context_menu: Option<AnyElement>,
11036 tab_invisible: ShapedLine,
11037 space_invisible: ShapedLine,
11038 sticky_buffer_header: Option<AnyElement>,
11039 sticky_headers: Option<StickyHeaders>,
11040 document_colors: Option<(DocumentColorsRenderMode, Vec<(Range<DisplayPoint>, Hsla)>)>,
11041 text_align: TextAlign,
11042 content_width: Pixels,
11043}
11044
11045struct StickyHeaders {
11046 lines: Vec<StickyHeaderLine>,
11047 gutter_background: Hsla,
11048 content_background: Hsla,
11049 gutter_right_padding: Pixels,
11050}
11051
11052struct StickyHeaderLine {
11053 row: DisplayRow,
11054 offset: Pixels,
11055 line: LineWithInvisibles,
11056 line_number: Option<ShapedLine>,
11057 elements: SmallVec<[AnyElement; 1]>,
11058 available_text_width: Pixels,
11059 target_anchor: Anchor,
11060 hitbox: Hitbox,
11061}
11062
11063impl EditorLayout {
11064 fn line_end_overshoot(&self) -> Pixels {
11065 0.15 * self.position_map.line_height
11066 }
11067}
11068
11069impl StickyHeaders {
11070 fn paint(
11071 &mut self,
11072 layout: &mut EditorLayout,
11073 whitespace_setting: ShowWhitespaceSetting,
11074 window: &mut Window,
11075 cx: &mut App,
11076 ) {
11077 let line_height = layout.position_map.line_height;
11078
11079 for line in self.lines.iter_mut().rev() {
11080 window.paint_layer(
11081 Bounds::new(
11082 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
11083 size(line.hitbox.size.width, line_height),
11084 ),
11085 |window| {
11086 let gutter_bounds = Bounds::new(
11087 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
11088 size(layout.gutter_hitbox.size.width, line_height),
11089 );
11090 window.paint_quad(fill(gutter_bounds, self.gutter_background));
11091
11092 let text_bounds = Bounds::new(
11093 layout.position_map.text_hitbox.origin + point(Pixels::ZERO, line.offset),
11094 size(line.available_text_width, line_height),
11095 );
11096 window.paint_quad(fill(text_bounds, self.content_background));
11097
11098 if line.hitbox.is_hovered(window) {
11099 let hover_overlay = cx.theme().colors().panel_overlay_hover;
11100 window.paint_quad(fill(gutter_bounds, hover_overlay));
11101 window.paint_quad(fill(text_bounds, hover_overlay));
11102 }
11103
11104 line.paint(
11105 layout,
11106 self.gutter_right_padding,
11107 line.available_text_width,
11108 layout.content_origin,
11109 line_height,
11110 whitespace_setting,
11111 window,
11112 cx,
11113 );
11114 },
11115 );
11116
11117 window.set_cursor_style(CursorStyle::PointingHand, &line.hitbox);
11118 }
11119 }
11120}
11121
11122impl StickyHeaderLine {
11123 fn new(
11124 row: DisplayRow,
11125 offset: Pixels,
11126 mut line: LineWithInvisibles,
11127 line_number: Option<ShapedLine>,
11128 target_anchor: Anchor,
11129 line_height: Pixels,
11130 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
11131 content_origin: gpui::Point<Pixels>,
11132 gutter_hitbox: &Hitbox,
11133 text_hitbox: &Hitbox,
11134 window: &mut Window,
11135 cx: &mut App,
11136 ) -> Self {
11137 let mut elements = SmallVec::<[AnyElement; 1]>::new();
11138 line.prepaint_with_custom_offset(
11139 line_height,
11140 scroll_pixel_position,
11141 content_origin,
11142 offset,
11143 &mut elements,
11144 window,
11145 cx,
11146 );
11147
11148 let hitbox_bounds = Bounds::new(
11149 gutter_hitbox.origin + point(Pixels::ZERO, offset),
11150 size(text_hitbox.right() - gutter_hitbox.left(), line_height),
11151 );
11152 let available_text_width =
11153 (hitbox_bounds.size.width - gutter_hitbox.size.width).max(Pixels::ZERO);
11154
11155 Self {
11156 row,
11157 offset,
11158 line,
11159 line_number,
11160 elements,
11161 available_text_width,
11162 target_anchor,
11163 hitbox: window.insert_hitbox(hitbox_bounds, HitboxBehavior::BlockMouseExceptScroll),
11164 }
11165 }
11166
11167 fn paint(
11168 &mut self,
11169 layout: &EditorLayout,
11170 gutter_right_padding: Pixels,
11171 available_text_width: Pixels,
11172 content_origin: gpui::Point<Pixels>,
11173 line_height: Pixels,
11174 whitespace_setting: ShowWhitespaceSetting,
11175 window: &mut Window,
11176 cx: &mut App,
11177 ) {
11178 window.with_content_mask(
11179 Some(ContentMask {
11180 bounds: Bounds::new(
11181 layout.position_map.text_hitbox.bounds.origin
11182 + point(Pixels::ZERO, self.offset),
11183 size(available_text_width, line_height),
11184 ),
11185 }),
11186 |window| {
11187 self.line.draw_with_custom_offset(
11188 layout,
11189 self.row,
11190 content_origin,
11191 self.offset,
11192 whitespace_setting,
11193 &[],
11194 window,
11195 cx,
11196 );
11197 for element in &mut self.elements {
11198 element.paint(window, cx);
11199 }
11200 },
11201 );
11202
11203 if let Some(line_number) = &self.line_number {
11204 let gutter_origin = layout.gutter_hitbox.origin + point(Pixels::ZERO, self.offset);
11205 let gutter_width = layout.gutter_hitbox.size.width;
11206 let origin = point(
11207 gutter_origin.x + gutter_width - gutter_right_padding - line_number.width,
11208 gutter_origin.y,
11209 );
11210 line_number
11211 .paint(origin, line_height, TextAlign::Left, None, window, cx)
11212 .log_err();
11213 }
11214 }
11215}
11216
11217#[derive(Debug)]
11218struct LineNumberSegment {
11219 shaped_line: ShapedLine,
11220 hitbox: Option<Hitbox>,
11221}
11222
11223#[derive(Debug)]
11224struct LineNumberLayout {
11225 segments: SmallVec<[LineNumberSegment; 1]>,
11226}
11227
11228struct ColoredRange<T> {
11229 start: T,
11230 end: T,
11231 color: Hsla,
11232}
11233
11234impl Along for ScrollbarAxes {
11235 type Unit = bool;
11236
11237 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
11238 match axis {
11239 ScrollbarAxis::Horizontal => self.horizontal,
11240 ScrollbarAxis::Vertical => self.vertical,
11241 }
11242 }
11243
11244 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
11245 match axis {
11246 ScrollbarAxis::Horizontal => ScrollbarAxes {
11247 horizontal: f(self.horizontal),
11248 vertical: self.vertical,
11249 },
11250 ScrollbarAxis::Vertical => ScrollbarAxes {
11251 horizontal: self.horizontal,
11252 vertical: f(self.vertical),
11253 },
11254 }
11255 }
11256}
11257
11258#[derive(Clone)]
11259struct EditorScrollbars {
11260 pub vertical: Option<ScrollbarLayout>,
11261 pub horizontal: Option<ScrollbarLayout>,
11262 pub visible: bool,
11263}
11264
11265impl EditorScrollbars {
11266 pub fn from_scrollbar_axes(
11267 show_scrollbar: ScrollbarAxes,
11268 layout_information: &ScrollbarLayoutInformation,
11269 content_offset: gpui::Point<Pixels>,
11270 scroll_position: gpui::Point<f64>,
11271 scrollbar_width: Pixels,
11272 right_margin: Pixels,
11273 editor_width: Pixels,
11274 show_scrollbars: bool,
11275 scrollbar_state: Option<&ActiveScrollbarState>,
11276 window: &mut Window,
11277 ) -> Self {
11278 let ScrollbarLayoutInformation {
11279 editor_bounds,
11280 scroll_range,
11281 glyph_grid_cell,
11282 } = layout_information;
11283
11284 let viewport_size = size(editor_width, editor_bounds.size.height);
11285
11286 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
11287 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
11288 Corner::BottomLeft,
11289 editor_bounds.bottom_left(),
11290 size(
11291 // The horizontal viewport size differs from the space available for the
11292 // horizontal scrollbar, so we have to manually stitch it together here.
11293 editor_bounds.size.width - right_margin,
11294 scrollbar_width,
11295 ),
11296 ),
11297 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
11298 Corner::TopRight,
11299 editor_bounds.top_right(),
11300 size(scrollbar_width, viewport_size.height),
11301 ),
11302 };
11303
11304 let mut create_scrollbar_layout = |axis| {
11305 let viewport_size = viewport_size.along(axis);
11306 let scroll_range = scroll_range.along(axis);
11307
11308 // We always want a vertical scrollbar track for scrollbar diagnostic visibility.
11309 (show_scrollbar.along(axis)
11310 && (axis == ScrollbarAxis::Vertical || scroll_range > viewport_size))
11311 .then(|| {
11312 ScrollbarLayout::new(
11313 window.insert_hitbox(scrollbar_bounds_for(axis), HitboxBehavior::Normal),
11314 viewport_size,
11315 scroll_range,
11316 glyph_grid_cell.along(axis),
11317 content_offset.along(axis),
11318 scroll_position.along(axis),
11319 show_scrollbars,
11320 axis,
11321 )
11322 .with_thumb_state(
11323 scrollbar_state.and_then(|state| state.thumb_state_for_axis(axis)),
11324 )
11325 })
11326 };
11327
11328 Self {
11329 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
11330 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
11331 visible: show_scrollbars,
11332 }
11333 }
11334
11335 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
11336 [
11337 (&self.vertical, ScrollbarAxis::Vertical),
11338 (&self.horizontal, ScrollbarAxis::Horizontal),
11339 ]
11340 .into_iter()
11341 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
11342 }
11343
11344 /// Returns the currently hovered scrollbar axis, if any.
11345 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
11346 self.iter_scrollbars()
11347 .find(|s| s.0.hitbox.is_hovered(window))
11348 }
11349}
11350
11351#[derive(Clone)]
11352struct ScrollbarLayout {
11353 hitbox: Hitbox,
11354 visible_range: Range<ScrollOffset>,
11355 text_unit_size: Pixels,
11356 thumb_bounds: Option<Bounds<Pixels>>,
11357 thumb_state: ScrollbarThumbState,
11358}
11359
11360impl ScrollbarLayout {
11361 const BORDER_WIDTH: Pixels = px(1.0);
11362 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
11363 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
11364 const MIN_THUMB_SIZE: Pixels = px(25.0);
11365
11366 fn new(
11367 scrollbar_track_hitbox: Hitbox,
11368 viewport_size: Pixels,
11369 scroll_range: Pixels,
11370 glyph_space: Pixels,
11371 content_offset: Pixels,
11372 scroll_position: ScrollOffset,
11373 show_thumb: bool,
11374 axis: ScrollbarAxis,
11375 ) -> Self {
11376 let track_bounds = scrollbar_track_hitbox.bounds;
11377 // The length of the track available to the scrollbar thumb. We deliberately
11378 // exclude the content size here so that the thumb aligns with the content.
11379 let track_length = track_bounds.size.along(axis) - content_offset;
11380
11381 Self::new_with_hitbox_and_track_length(
11382 scrollbar_track_hitbox,
11383 track_length,
11384 viewport_size,
11385 scroll_range.into(),
11386 glyph_space,
11387 content_offset.into(),
11388 scroll_position,
11389 show_thumb,
11390 axis,
11391 )
11392 }
11393
11394 fn for_minimap(
11395 minimap_track_hitbox: Hitbox,
11396 visible_lines: f64,
11397 total_editor_lines: f64,
11398 minimap_line_height: Pixels,
11399 scroll_position: ScrollOffset,
11400 minimap_scroll_top: ScrollOffset,
11401 show_thumb: bool,
11402 ) -> Self {
11403 // The scrollbar thumb size is calculated as
11404 // (visible_content/total_content) Γ scrollbar_track_length.
11405 //
11406 // For the minimap's thumb layout, we leverage this by setting the
11407 // scrollbar track length to the entire document size (using minimap line
11408 // height). This creates a thumb that exactly represents the editor
11409 // viewport scaled to minimap proportions.
11410 //
11411 // We adjust the thumb position relative to `minimap_scroll_top` to
11412 // accommodate for the deliberately oversized track.
11413 //
11414 // This approach ensures that the minimap thumb accurately reflects the
11415 // editor's current scroll position whilst nicely synchronizing the minimap
11416 // thumb and scrollbar thumb.
11417 let scroll_range = total_editor_lines * f64::from(minimap_line_height);
11418 let viewport_size = visible_lines * f64::from(minimap_line_height);
11419
11420 let track_top_offset = -minimap_scroll_top * f64::from(minimap_line_height);
11421
11422 Self::new_with_hitbox_and_track_length(
11423 minimap_track_hitbox,
11424 Pixels::from(scroll_range),
11425 Pixels::from(viewport_size),
11426 scroll_range,
11427 minimap_line_height,
11428 track_top_offset,
11429 scroll_position,
11430 show_thumb,
11431 ScrollbarAxis::Vertical,
11432 )
11433 }
11434
11435 fn new_with_hitbox_and_track_length(
11436 scrollbar_track_hitbox: Hitbox,
11437 track_length: Pixels,
11438 viewport_size: Pixels,
11439 scroll_range: f64,
11440 glyph_space: Pixels,
11441 content_offset: ScrollOffset,
11442 scroll_position: ScrollOffset,
11443 show_thumb: bool,
11444 axis: ScrollbarAxis,
11445 ) -> Self {
11446 let text_units_per_page = viewport_size.to_f64() / glyph_space.to_f64();
11447 let visible_range = scroll_position..scroll_position + text_units_per_page;
11448 let total_text_units = scroll_range / glyph_space.to_f64();
11449
11450 let thumb_percentage = text_units_per_page / total_text_units;
11451 let thumb_size = Pixels::from(ScrollOffset::from(track_length) * thumb_percentage)
11452 .max(ScrollbarLayout::MIN_THUMB_SIZE)
11453 .min(track_length);
11454
11455 let text_unit_divisor = (total_text_units - text_units_per_page).max(0.);
11456
11457 let content_larger_than_viewport = text_unit_divisor > 0.;
11458
11459 let text_unit_size = if content_larger_than_viewport {
11460 Pixels::from(ScrollOffset::from(track_length - thumb_size) / text_unit_divisor)
11461 } else {
11462 glyph_space
11463 };
11464
11465 let thumb_bounds = (show_thumb && content_larger_than_viewport).then(|| {
11466 Self::thumb_bounds(
11467 &scrollbar_track_hitbox,
11468 content_offset,
11469 visible_range.start,
11470 text_unit_size,
11471 thumb_size,
11472 axis,
11473 )
11474 });
11475
11476 ScrollbarLayout {
11477 hitbox: scrollbar_track_hitbox,
11478 visible_range,
11479 text_unit_size,
11480 thumb_bounds,
11481 thumb_state: Default::default(),
11482 }
11483 }
11484
11485 fn with_thumb_state(self, thumb_state: Option<ScrollbarThumbState>) -> Self {
11486 if let Some(thumb_state) = thumb_state {
11487 Self {
11488 thumb_state,
11489 ..self
11490 }
11491 } else {
11492 self
11493 }
11494 }
11495
11496 fn thumb_bounds(
11497 scrollbar_track: &Hitbox,
11498 content_offset: f64,
11499 visible_range_start: f64,
11500 text_unit_size: Pixels,
11501 thumb_size: Pixels,
11502 axis: ScrollbarAxis,
11503 ) -> Bounds<Pixels> {
11504 let thumb_origin = scrollbar_track.origin.apply_along(axis, |origin| {
11505 origin
11506 + Pixels::from(
11507 content_offset + visible_range_start * ScrollOffset::from(text_unit_size),
11508 )
11509 });
11510 Bounds::new(
11511 thumb_origin,
11512 scrollbar_track.size.apply_along(axis, |_| thumb_size),
11513 )
11514 }
11515
11516 fn thumb_hovered(&self, position: &gpui::Point<Pixels>) -> bool {
11517 self.thumb_bounds
11518 .is_some_and(|bounds| bounds.contains(position))
11519 }
11520
11521 fn marker_quads_for_ranges(
11522 &self,
11523 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
11524 column: Option<usize>,
11525 ) -> Vec<PaintQuad> {
11526 struct MinMax {
11527 min: Pixels,
11528 max: Pixels,
11529 }
11530 let (x_range, height_limit) = if let Some(column) = column {
11531 let column_width = ((self.hitbox.size.width - Self::BORDER_WIDTH) / 3.0).floor();
11532 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
11533 let end = start + column_width;
11534 (
11535 Range { start, end },
11536 MinMax {
11537 min: Self::MIN_MARKER_HEIGHT,
11538 max: px(f32::MAX),
11539 },
11540 )
11541 } else {
11542 (
11543 Range {
11544 start: Self::BORDER_WIDTH,
11545 end: self.hitbox.size.width,
11546 },
11547 MinMax {
11548 min: Self::LINE_MARKER_HEIGHT,
11549 max: Self::LINE_MARKER_HEIGHT,
11550 },
11551 )
11552 };
11553
11554 let row_to_y = |row: DisplayRow| row.as_f64() as f32 * self.text_unit_size;
11555 let mut pixel_ranges = row_ranges
11556 .into_iter()
11557 .map(|range| {
11558 let start_y = row_to_y(range.start);
11559 let end_y = row_to_y(range.end)
11560 + self
11561 .text_unit_size
11562 .max(height_limit.min)
11563 .min(height_limit.max);
11564 ColoredRange {
11565 start: start_y,
11566 end: end_y,
11567 color: range.color,
11568 }
11569 })
11570 .peekable();
11571
11572 let mut quads = Vec::new();
11573 while let Some(mut pixel_range) = pixel_ranges.next() {
11574 while let Some(next_pixel_range) = pixel_ranges.peek() {
11575 if pixel_range.end >= next_pixel_range.start - px(1.0)
11576 && pixel_range.color == next_pixel_range.color
11577 {
11578 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
11579 pixel_ranges.next();
11580 } else {
11581 break;
11582 }
11583 }
11584
11585 let bounds = Bounds::from_corners(
11586 point(x_range.start, pixel_range.start),
11587 point(x_range.end, pixel_range.end),
11588 );
11589 quads.push(quad(
11590 bounds,
11591 Corners::default(),
11592 pixel_range.color,
11593 Edges::default(),
11594 Hsla::transparent_black(),
11595 BorderStyle::default(),
11596 ));
11597 }
11598
11599 quads
11600 }
11601}
11602
11603struct MinimapLayout {
11604 pub minimap: AnyElement,
11605 pub thumb_layout: ScrollbarLayout,
11606 pub minimap_scroll_top: ScrollOffset,
11607 pub minimap_line_height: Pixels,
11608 pub thumb_border_style: MinimapThumbBorder,
11609 pub max_scroll_top: ScrollOffset,
11610}
11611
11612impl MinimapLayout {
11613 /// The minimum width of the minimap in columns. If the minimap is smaller than this, it will be hidden.
11614 const MINIMAP_MIN_WIDTH_COLUMNS: f32 = 20.;
11615 /// The minimap width as a percentage of the editor width.
11616 const MINIMAP_WIDTH_PCT: f32 = 0.15;
11617 /// Calculates the scroll top offset the minimap editor has to have based on the
11618 /// current scroll progress.
11619 fn calculate_minimap_top_offset(
11620 document_lines: f64,
11621 visible_editor_lines: f64,
11622 visible_minimap_lines: f64,
11623 scroll_position: f64,
11624 ) -> ScrollOffset {
11625 let non_visible_document_lines = (document_lines - visible_editor_lines).max(0.);
11626 if non_visible_document_lines == 0. {
11627 0.
11628 } else {
11629 let scroll_percentage = (scroll_position / non_visible_document_lines).clamp(0., 1.);
11630 scroll_percentage * (document_lines - visible_minimap_lines).max(0.)
11631 }
11632 }
11633}
11634
11635struct CreaseTrailerLayout {
11636 element: AnyElement,
11637 bounds: Bounds<Pixels>,
11638}
11639
11640pub(crate) struct PositionMap {
11641 pub size: Size<Pixels>,
11642 pub line_height: Pixels,
11643 pub scroll_position: gpui::Point<ScrollOffset>,
11644 pub scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
11645 pub scroll_max: gpui::Point<ScrollOffset>,
11646 pub em_width: Pixels,
11647 pub em_advance: Pixels,
11648 pub visible_row_range: Range<DisplayRow>,
11649 pub line_layouts: Vec<LineWithInvisibles>,
11650 pub snapshot: EditorSnapshot,
11651 pub text_align: TextAlign,
11652 pub content_width: Pixels,
11653 pub text_hitbox: Hitbox,
11654 pub gutter_hitbox: Hitbox,
11655 pub inline_blame_bounds: Option<(Bounds<Pixels>, BufferId, BlameEntry)>,
11656 pub display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
11657 pub diff_hunk_control_bounds: Vec<(DisplayRow, Bounds<Pixels>)>,
11658}
11659
11660#[derive(Debug, Copy, Clone)]
11661pub struct PointForPosition {
11662 pub previous_valid: DisplayPoint,
11663 pub next_valid: DisplayPoint,
11664 pub exact_unclipped: DisplayPoint,
11665 pub column_overshoot_after_line_end: u32,
11666}
11667
11668impl PointForPosition {
11669 pub fn as_valid(&self) -> Option<DisplayPoint> {
11670 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
11671 Some(self.previous_valid)
11672 } else {
11673 None
11674 }
11675 }
11676
11677 pub fn intersects_selection(&self, selection: &Selection<DisplayPoint>) -> bool {
11678 let Some(valid_point) = self.as_valid() else {
11679 return false;
11680 };
11681 let range = selection.range();
11682
11683 let candidate_row = valid_point.row();
11684 let candidate_col = valid_point.column();
11685
11686 let start_row = range.start.row();
11687 let start_col = range.start.column();
11688 let end_row = range.end.row();
11689 let end_col = range.end.column();
11690
11691 if candidate_row < start_row || candidate_row > end_row {
11692 false
11693 } else if start_row == end_row {
11694 candidate_col >= start_col && candidate_col < end_col
11695 } else if candidate_row == start_row {
11696 candidate_col >= start_col
11697 } else if candidate_row == end_row {
11698 candidate_col < end_col
11699 } else {
11700 true
11701 }
11702 }
11703}
11704
11705impl PositionMap {
11706 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
11707 let text_bounds = self.text_hitbox.bounds;
11708 let scroll_position = self.snapshot.scroll_position();
11709 let position = position - text_bounds.origin;
11710 let y = position.y.max(px(0.)).min(self.size.height);
11711 let x = position.x + (scroll_position.x as f32 * self.em_advance);
11712 let row = ((y / self.line_height) as f64 + scroll_position.y) as u32;
11713
11714 let (column, x_overshoot_after_line_end) = if let Some(line) = self
11715 .line_layouts
11716 .get(row as usize - scroll_position.y as usize)
11717 {
11718 let alignment_offset = line.alignment_offset(self.text_align, self.content_width);
11719 let x_relative_to_text = x - alignment_offset;
11720 if let Some(ix) = line.index_for_x(x_relative_to_text) {
11721 (ix as u32, px(0.))
11722 } else {
11723 (line.len as u32, px(0.).max(x_relative_to_text - line.width))
11724 }
11725 } else {
11726 (0, x)
11727 };
11728
11729 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
11730 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
11731 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
11732
11733 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
11734 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
11735 PointForPosition {
11736 previous_valid,
11737 next_valid,
11738 exact_unclipped,
11739 column_overshoot_after_line_end,
11740 }
11741 }
11742}
11743
11744pub(crate) struct BlockLayout {
11745 pub(crate) id: BlockId,
11746 pub(crate) x_offset: Pixels,
11747 pub(crate) row: Option<DisplayRow>,
11748 pub(crate) element: AnyElement,
11749 pub(crate) available_space: Size<AvailableSpace>,
11750 pub(crate) style: BlockStyle,
11751 pub(crate) overlaps_gutter: bool,
11752 pub(crate) is_buffer_header: bool,
11753}
11754
11755pub fn layout_line(
11756 row: DisplayRow,
11757 snapshot: &EditorSnapshot,
11758 style: &EditorStyle,
11759 text_width: Pixels,
11760 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
11761 window: &mut Window,
11762 cx: &mut App,
11763) -> LineWithInvisibles {
11764 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
11765 LineWithInvisibles::from_chunks(
11766 chunks,
11767 style,
11768 MAX_LINE_LEN,
11769 1,
11770 &snapshot.mode,
11771 text_width,
11772 is_row_soft_wrapped,
11773 &[],
11774 window,
11775 cx,
11776 )
11777 .pop()
11778 .unwrap()
11779}
11780
11781#[derive(Debug)]
11782pub struct IndentGuideLayout {
11783 origin: gpui::Point<Pixels>,
11784 length: Pixels,
11785 single_indent_width: Pixels,
11786 depth: u32,
11787 active: bool,
11788 settings: IndentGuideSettings,
11789}
11790
11791pub struct CursorLayout {
11792 origin: gpui::Point<Pixels>,
11793 block_width: Pixels,
11794 line_height: Pixels,
11795 color: Hsla,
11796 shape: CursorShape,
11797 block_text: Option<ShapedLine>,
11798 cursor_name: Option<AnyElement>,
11799}
11800
11801#[derive(Debug)]
11802pub struct CursorName {
11803 string: SharedString,
11804 color: Hsla,
11805 is_top_row: bool,
11806}
11807
11808impl CursorLayout {
11809 pub fn new(
11810 origin: gpui::Point<Pixels>,
11811 block_width: Pixels,
11812 line_height: Pixels,
11813 color: Hsla,
11814 shape: CursorShape,
11815 block_text: Option<ShapedLine>,
11816 ) -> CursorLayout {
11817 CursorLayout {
11818 origin,
11819 block_width,
11820 line_height,
11821 color,
11822 shape,
11823 block_text,
11824 cursor_name: None,
11825 }
11826 }
11827
11828 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
11829 Bounds {
11830 origin: self.origin + origin,
11831 size: size(self.block_width, self.line_height),
11832 }
11833 }
11834
11835 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
11836 match self.shape {
11837 CursorShape::Bar => Bounds {
11838 origin: self.origin + origin,
11839 size: size(px(2.0), self.line_height),
11840 },
11841 CursorShape::Block | CursorShape::Hollow => Bounds {
11842 origin: self.origin + origin,
11843 size: size(self.block_width, self.line_height),
11844 },
11845 CursorShape::Underline => Bounds {
11846 origin: self.origin
11847 + origin
11848 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
11849 size: size(self.block_width, px(2.0)),
11850 },
11851 }
11852 }
11853
11854 pub fn layout(
11855 &mut self,
11856 origin: gpui::Point<Pixels>,
11857 cursor_name: Option<CursorName>,
11858 window: &mut Window,
11859 cx: &mut App,
11860 ) {
11861 if let Some(cursor_name) = cursor_name {
11862 let bounds = self.bounds(origin);
11863 let text_size = self.line_height / 1.5;
11864
11865 let name_origin = if cursor_name.is_top_row {
11866 point(bounds.right() - px(1.), bounds.top())
11867 } else {
11868 match self.shape {
11869 CursorShape::Bar => point(
11870 bounds.right() - px(2.),
11871 bounds.top() - text_size / 2. - px(1.),
11872 ),
11873 _ => point(
11874 bounds.right() - px(1.),
11875 bounds.top() - text_size / 2. - px(1.),
11876 ),
11877 }
11878 };
11879 let mut name_element = div()
11880 .bg(self.color)
11881 .text_size(text_size)
11882 .px_0p5()
11883 .line_height(text_size + px(2.))
11884 .text_color(cursor_name.color)
11885 .child(cursor_name.string)
11886 .into_any_element();
11887
11888 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
11889
11890 self.cursor_name = Some(name_element);
11891 }
11892 }
11893
11894 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
11895 let bounds = self.bounds(origin);
11896
11897 //Draw background or border quad
11898 let cursor = if matches!(self.shape, CursorShape::Hollow) {
11899 outline(bounds, self.color, BorderStyle::Solid)
11900 } else {
11901 fill(bounds, self.color)
11902 };
11903
11904 if let Some(name) = &mut self.cursor_name {
11905 name.paint(window, cx);
11906 }
11907
11908 window.paint_quad(cursor);
11909
11910 if let Some(block_text) = &self.block_text {
11911 block_text
11912 .paint(
11913 self.origin + origin,
11914 self.line_height,
11915 TextAlign::Left,
11916 None,
11917 window,
11918 cx,
11919 )
11920 .log_err();
11921 }
11922 }
11923
11924 pub fn shape(&self) -> CursorShape {
11925 self.shape
11926 }
11927}
11928
11929#[derive(Debug)]
11930pub struct HighlightedRange {
11931 pub start_y: Pixels,
11932 pub line_height: Pixels,
11933 pub lines: Vec<HighlightedRangeLine>,
11934 pub color: Hsla,
11935 pub corner_radius: Pixels,
11936}
11937
11938#[derive(Debug)]
11939pub struct HighlightedRangeLine {
11940 pub start_x: Pixels,
11941 pub end_x: Pixels,
11942}
11943
11944impl HighlightedRange {
11945 pub fn paint(&self, fill: bool, bounds: Bounds<Pixels>, window: &mut Window) {
11946 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
11947 self.paint_lines(self.start_y, &self.lines[0..1], fill, bounds, window);
11948 self.paint_lines(
11949 self.start_y + self.line_height,
11950 &self.lines[1..],
11951 fill,
11952 bounds,
11953 window,
11954 );
11955 } else {
11956 self.paint_lines(self.start_y, &self.lines, fill, bounds, window);
11957 }
11958 }
11959
11960 fn paint_lines(
11961 &self,
11962 start_y: Pixels,
11963 lines: &[HighlightedRangeLine],
11964 fill: bool,
11965 _bounds: Bounds<Pixels>,
11966 window: &mut Window,
11967 ) {
11968 if lines.is_empty() {
11969 return;
11970 }
11971
11972 let first_line = lines.first().unwrap();
11973 let last_line = lines.last().unwrap();
11974
11975 let first_top_left = point(first_line.start_x, start_y);
11976 let first_top_right = point(first_line.end_x, start_y);
11977
11978 let curve_height = point(Pixels::ZERO, self.corner_radius);
11979 let curve_width = |start_x: Pixels, end_x: Pixels| {
11980 let max = (end_x - start_x) / 2.;
11981 let width = if max < self.corner_radius {
11982 max
11983 } else {
11984 self.corner_radius
11985 };
11986
11987 point(width, Pixels::ZERO)
11988 };
11989
11990 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
11991 let mut builder = if fill {
11992 gpui::PathBuilder::fill()
11993 } else {
11994 gpui::PathBuilder::stroke(px(1.))
11995 };
11996 builder.move_to(first_top_right - top_curve_width);
11997 builder.curve_to(first_top_right + curve_height, first_top_right);
11998
11999 let mut iter = lines.iter().enumerate().peekable();
12000 while let Some((ix, line)) = iter.next() {
12001 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
12002
12003 if let Some((_, next_line)) = iter.peek() {
12004 let next_top_right = point(next_line.end_x, bottom_right.y);
12005
12006 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
12007 Ordering::Equal => {
12008 builder.line_to(bottom_right);
12009 }
12010 Ordering::Less => {
12011 let curve_width = curve_width(next_top_right.x, bottom_right.x);
12012 builder.line_to(bottom_right - curve_height);
12013 if self.corner_radius > Pixels::ZERO {
12014 builder.curve_to(bottom_right - curve_width, bottom_right);
12015 }
12016 builder.line_to(next_top_right + curve_width);
12017 if self.corner_radius > Pixels::ZERO {
12018 builder.curve_to(next_top_right + curve_height, next_top_right);
12019 }
12020 }
12021 Ordering::Greater => {
12022 let curve_width = curve_width(bottom_right.x, next_top_right.x);
12023 builder.line_to(bottom_right - curve_height);
12024 if self.corner_radius > Pixels::ZERO {
12025 builder.curve_to(bottom_right + curve_width, bottom_right);
12026 }
12027 builder.line_to(next_top_right - curve_width);
12028 if self.corner_radius > Pixels::ZERO {
12029 builder.curve_to(next_top_right + curve_height, next_top_right);
12030 }
12031 }
12032 }
12033 } else {
12034 let curve_width = curve_width(line.start_x, line.end_x);
12035 builder.line_to(bottom_right - curve_height);
12036 if self.corner_radius > Pixels::ZERO {
12037 builder.curve_to(bottom_right - curve_width, bottom_right);
12038 }
12039
12040 let bottom_left = point(line.start_x, bottom_right.y);
12041 builder.line_to(bottom_left + curve_width);
12042 if self.corner_radius > Pixels::ZERO {
12043 builder.curve_to(bottom_left - curve_height, bottom_left);
12044 }
12045 }
12046 }
12047
12048 if first_line.start_x > last_line.start_x {
12049 let curve_width = curve_width(last_line.start_x, first_line.start_x);
12050 let second_top_left = point(last_line.start_x, start_y + self.line_height);
12051 builder.line_to(second_top_left + curve_height);
12052 if self.corner_radius > Pixels::ZERO {
12053 builder.curve_to(second_top_left + curve_width, second_top_left);
12054 }
12055 let first_bottom_left = point(first_line.start_x, second_top_left.y);
12056 builder.line_to(first_bottom_left - curve_width);
12057 if self.corner_radius > Pixels::ZERO {
12058 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
12059 }
12060 }
12061
12062 builder.line_to(first_top_left + curve_height);
12063 if self.corner_radius > Pixels::ZERO {
12064 builder.curve_to(first_top_left + top_curve_width, first_top_left);
12065 }
12066 builder.line_to(first_top_right - top_curve_width);
12067
12068 if let Ok(path) = builder.build() {
12069 window.paint_path(path, self.color);
12070 }
12071 }
12072}
12073
12074pub(crate) struct StickyHeader {
12075 pub item: language::OutlineItem<Anchor>,
12076 pub sticky_row: DisplayRow,
12077 pub start_point: Point,
12078 pub offset: ScrollOffset,
12079}
12080
12081enum CursorPopoverType {
12082 CodeContextMenu,
12083 EditPrediction,
12084}
12085
12086pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
12087 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
12088}
12089
12090fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
12091 (delta.pow(1.2) / 300.0).into()
12092}
12093
12094pub fn register_action<T: Action>(
12095 editor: &Entity<Editor>,
12096 window: &mut Window,
12097 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
12098) {
12099 let editor = editor.clone();
12100 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
12101 let action = action.downcast_ref().unwrap();
12102 if phase == DispatchPhase::Bubble {
12103 editor.update(cx, |editor, cx| {
12104 listener(editor, action, window, cx);
12105 })
12106 }
12107 })
12108}
12109
12110fn compute_auto_height_layout(
12111 editor: &mut Editor,
12112 min_lines: usize,
12113 max_lines: Option<usize>,
12114 known_dimensions: Size<Option<Pixels>>,
12115 available_width: AvailableSpace,
12116 window: &mut Window,
12117 cx: &mut Context<Editor>,
12118) -> Option<Size<Pixels>> {
12119 let width = known_dimensions.width.or({
12120 if let AvailableSpace::Definite(available_width) = available_width {
12121 Some(available_width)
12122 } else {
12123 None
12124 }
12125 })?;
12126 if let Some(height) = known_dimensions.height {
12127 return Some(size(width, height));
12128 }
12129
12130 let style = editor.style.as_ref().unwrap();
12131 let font_id = window.text_system().resolve_font(&style.text.font());
12132 let font_size = style.text.font_size.to_pixels(window.rem_size());
12133 let line_height = style.text.line_height_in_pixels(window.rem_size());
12134 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
12135
12136 let mut snapshot = editor.snapshot(window, cx);
12137 let gutter_dimensions = snapshot.gutter_dimensions(font_id, font_size, style, window, cx);
12138
12139 editor.gutter_dimensions = gutter_dimensions;
12140 let text_width = width - gutter_dimensions.width;
12141 let overscroll = size(em_width, px(0.));
12142
12143 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
12144 if !matches!(editor.soft_wrap_mode(cx), SoftWrap::None)
12145 && editor.set_wrap_width(Some(editor_width), cx)
12146 {
12147 snapshot = editor.snapshot(window, cx);
12148 }
12149
12150 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
12151
12152 let min_height = line_height * min_lines as f32;
12153 let content_height = scroll_height.max(min_height);
12154
12155 let final_height = if let Some(max_lines) = max_lines {
12156 let max_height = line_height * max_lines as f32;
12157 content_height.min(max_height)
12158 } else {
12159 content_height
12160 };
12161
12162 Some(size(width, final_height))
12163}
12164
12165#[cfg(test)]
12166mod tests {
12167 use super::*;
12168 use crate::{
12169 Editor, MultiBuffer, SelectionEffects,
12170 display_map::{BlockPlacement, BlockProperties},
12171 editor_tests::{init_test, update_test_language_settings},
12172 };
12173 use gpui::{TestAppContext, VisualTestContext};
12174 use language::{Buffer, language_settings, tree_sitter_python};
12175 use log::info;
12176 use std::num::NonZeroU32;
12177 use util::test::sample_text;
12178
12179 #[gpui::test]
12180 async fn test_soft_wrap_editor_width_auto_height_editor(cx: &mut TestAppContext) {
12181 init_test(cx, |_| {});
12182 // Ensure wrap completes synchronously by giving block_with_timeout enough ticks
12183 cx.dispatcher.scheduler().set_timeout_ticks(1000..=1000);
12184
12185 let window = cx.add_window(|window, cx| {
12186 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
12187 let mut editor = Editor::new(
12188 EditorMode::AutoHeight {
12189 min_lines: 1,
12190 max_lines: None,
12191 },
12192 buffer,
12193 None,
12194 window,
12195 cx,
12196 );
12197 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12198 editor
12199 });
12200 let cx = &mut VisualTestContext::from_window(*window, cx);
12201 let editor = window.root(cx).unwrap();
12202 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12203
12204 for x in 1..=100 {
12205 let (_, state) = cx.draw(
12206 Default::default(),
12207 size(px(200. + 0.13 * x as f32), px(500.)),
12208 |_, _| EditorElement::new(&editor, style.clone()),
12209 );
12210
12211 assert!(
12212 state.position_map.scroll_max.x == 0.,
12213 "Soft wrapped editor should have no horizontal scrolling!"
12214 );
12215 }
12216 }
12217
12218 #[gpui::test]
12219 async fn test_soft_wrap_editor_width_full_editor(cx: &mut TestAppContext) {
12220 init_test(cx, |_| {});
12221 // Ensure wrap completes synchronously by giving block_with_timeout enough ticks
12222 cx.dispatcher.scheduler().set_timeout_ticks(1000..=1000);
12223
12224 let window = cx.add_window(|window, cx| {
12225 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
12226 let mut editor = Editor::new(EditorMode::full(), buffer, None, window, cx);
12227 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12228 editor
12229 });
12230 let cx = &mut VisualTestContext::from_window(*window, cx);
12231 let editor = window.root(cx).unwrap();
12232 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12233
12234 for x in 1..=100 {
12235 let (_, state) = cx.draw(
12236 Default::default(),
12237 size(px(200. + 0.13 * x as f32), px(500.)),
12238 |_, _| EditorElement::new(&editor, style.clone()),
12239 );
12240
12241 assert!(
12242 state.position_map.scroll_max.x == 0.,
12243 "Soft wrapped editor should have no horizontal scrolling!"
12244 );
12245 }
12246 }
12247
12248 #[gpui::test]
12249 fn test_layout_line_numbers(cx: &mut TestAppContext) {
12250 init_test(cx, |_| {});
12251 let window = cx.add_window(|window, cx| {
12252 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
12253 Editor::new(EditorMode::full(), buffer, None, window, cx)
12254 });
12255
12256 let editor = window.root(cx).unwrap();
12257 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12258 let line_height = window
12259 .update(cx, |_, window, _| {
12260 style.text.line_height_in_pixels(window.rem_size())
12261 })
12262 .unwrap();
12263 let element = EditorElement::new(&editor, style);
12264 let snapshot = window
12265 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
12266 .unwrap();
12267
12268 let layouts = cx
12269 .update_window(*window, |_, window, cx| {
12270 element.layout_line_numbers(
12271 None,
12272 GutterDimensions {
12273 left_padding: Pixels::ZERO,
12274 right_padding: Pixels::ZERO,
12275 width: px(30.0),
12276 margin: Pixels::ZERO,
12277 git_blame_entries_width: None,
12278 },
12279 line_height,
12280 gpui::Point::default(),
12281 DisplayRow(0)..DisplayRow(6),
12282 &(0..6)
12283 .map(|row| RowInfo {
12284 buffer_row: Some(row),
12285 ..Default::default()
12286 })
12287 .collect::<Vec<_>>(),
12288 &BTreeMap::default(),
12289 Some(DisplayRow(0)),
12290 &snapshot,
12291 window,
12292 cx,
12293 )
12294 })
12295 .unwrap();
12296 assert_eq!(layouts.len(), 6);
12297
12298 let relative_rows = window
12299 .update(cx, |editor, window, cx| {
12300 let snapshot = editor.snapshot(window, cx);
12301 snapshot.calculate_relative_line_numbers(
12302 &(DisplayRow(0)..DisplayRow(6)),
12303 DisplayRow(3),
12304 false,
12305 )
12306 })
12307 .unwrap();
12308 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12309 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12310 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12311 // current line has no relative number
12312 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12313 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12314 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12315
12316 // works if cursor is before screen
12317 let relative_rows = window
12318 .update(cx, |editor, window, cx| {
12319 let snapshot = editor.snapshot(window, cx);
12320 snapshot.calculate_relative_line_numbers(
12321 &(DisplayRow(3)..DisplayRow(6)),
12322 DisplayRow(1),
12323 false,
12324 )
12325 })
12326 .unwrap();
12327 assert_eq!(relative_rows.len(), 3);
12328 assert_eq!(relative_rows[&DisplayRow(3)], 2);
12329 assert_eq!(relative_rows[&DisplayRow(4)], 3);
12330 assert_eq!(relative_rows[&DisplayRow(5)], 4);
12331
12332 // works if cursor is after screen
12333 let relative_rows = window
12334 .update(cx, |editor, window, cx| {
12335 let snapshot = editor.snapshot(window, cx);
12336 snapshot.calculate_relative_line_numbers(
12337 &(DisplayRow(0)..DisplayRow(3)),
12338 DisplayRow(6),
12339 false,
12340 )
12341 })
12342 .unwrap();
12343 assert_eq!(relative_rows.len(), 3);
12344 assert_eq!(relative_rows[&DisplayRow(0)], 5);
12345 assert_eq!(relative_rows[&DisplayRow(1)], 4);
12346 assert_eq!(relative_rows[&DisplayRow(2)], 3);
12347
12348 const DELETED_LINE: u32 = 3;
12349 let layouts = cx
12350 .update_window(*window, |_, window, cx| {
12351 element.layout_line_numbers(
12352 None,
12353 GutterDimensions {
12354 left_padding: Pixels::ZERO,
12355 right_padding: Pixels::ZERO,
12356 width: px(30.0),
12357 margin: Pixels::ZERO,
12358 git_blame_entries_width: None,
12359 },
12360 line_height,
12361 gpui::Point::default(),
12362 DisplayRow(0)..DisplayRow(6),
12363 &(0..6)
12364 .map(|row| RowInfo {
12365 buffer_row: Some(row),
12366 diff_status: (row == DELETED_LINE).then(|| {
12367 DiffHunkStatus::deleted(
12368 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
12369 )
12370 }),
12371 ..Default::default()
12372 })
12373 .collect::<Vec<_>>(),
12374 &BTreeMap::default(),
12375 Some(DisplayRow(0)),
12376 &snapshot,
12377 window,
12378 cx,
12379 )
12380 })
12381 .unwrap();
12382 assert_eq!(layouts.len(), 5,);
12383 assert!(
12384 layouts.get(&MultiBufferRow(DELETED_LINE)).is_none(),
12385 "Deleted line should not have a line number"
12386 );
12387 }
12388
12389 #[gpui::test]
12390 async fn test_layout_line_numbers_with_folded_lines(cx: &mut TestAppContext) {
12391 init_test(cx, |_| {});
12392
12393 let python_lang = languages::language("python", tree_sitter_python::LANGUAGE.into());
12394
12395 let window = cx.add_window(|window, cx| {
12396 let buffer = cx.new(|cx| {
12397 Buffer::local(
12398 indoc::indoc! {"
12399 fn test() -> int {
12400 return 2;
12401 }
12402
12403 fn another_test() -> int {
12404 # This is a very peculiar method that is hard to grasp.
12405 return 4;
12406 }
12407 "},
12408 cx,
12409 )
12410 .with_language(python_lang, cx)
12411 });
12412
12413 let buffer = MultiBuffer::build_from_buffer(buffer, cx);
12414 Editor::new(EditorMode::full(), buffer, None, window, cx)
12415 });
12416
12417 let editor = window.root(cx).unwrap();
12418 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12419 let line_height = window
12420 .update(cx, |_, window, _| {
12421 style.text.line_height_in_pixels(window.rem_size())
12422 })
12423 .unwrap();
12424 let element = EditorElement::new(&editor, style);
12425 let snapshot = window
12426 .update(cx, |editor, window, cx| {
12427 editor.fold_at(MultiBufferRow(0), window, cx);
12428 editor.snapshot(window, cx)
12429 })
12430 .unwrap();
12431
12432 let layouts = cx
12433 .update_window(*window, |_, window, cx| {
12434 element.layout_line_numbers(
12435 None,
12436 GutterDimensions {
12437 left_padding: Pixels::ZERO,
12438 right_padding: Pixels::ZERO,
12439 width: px(30.0),
12440 margin: Pixels::ZERO,
12441 git_blame_entries_width: None,
12442 },
12443 line_height,
12444 gpui::Point::default(),
12445 DisplayRow(0)..DisplayRow(6),
12446 &(0..6)
12447 .map(|row| RowInfo {
12448 buffer_row: Some(row),
12449 ..Default::default()
12450 })
12451 .collect::<Vec<_>>(),
12452 &BTreeMap::default(),
12453 Some(DisplayRow(3)),
12454 &snapshot,
12455 window,
12456 cx,
12457 )
12458 })
12459 .unwrap();
12460 assert_eq!(layouts.len(), 6);
12461
12462 let relative_rows = window
12463 .update(cx, |editor, window, cx| {
12464 let snapshot = editor.snapshot(window, cx);
12465 snapshot.calculate_relative_line_numbers(
12466 &(DisplayRow(0)..DisplayRow(6)),
12467 DisplayRow(3),
12468 false,
12469 )
12470 })
12471 .unwrap();
12472 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12473 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12474 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12475 // current line has no relative number
12476 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12477 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12478 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12479 }
12480
12481 #[gpui::test]
12482 fn test_layout_line_numbers_wrapping(cx: &mut TestAppContext) {
12483 init_test(cx, |_| {});
12484 let window = cx.add_window(|window, cx| {
12485 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
12486 Editor::new(EditorMode::full(), buffer, None, window, cx)
12487 });
12488
12489 update_test_language_settings(cx, |s| {
12490 s.defaults.preferred_line_length = Some(5_u32);
12491 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
12492 });
12493
12494 let editor = window.root(cx).unwrap();
12495 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12496 let line_height = window
12497 .update(cx, |_, window, _| {
12498 style.text.line_height_in_pixels(window.rem_size())
12499 })
12500 .unwrap();
12501 let element = EditorElement::new(&editor, style);
12502 let snapshot = window
12503 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
12504 .unwrap();
12505
12506 let layouts = cx
12507 .update_window(*window, |_, window, cx| {
12508 element.layout_line_numbers(
12509 None,
12510 GutterDimensions {
12511 left_padding: Pixels::ZERO,
12512 right_padding: Pixels::ZERO,
12513 width: px(30.0),
12514 margin: Pixels::ZERO,
12515 git_blame_entries_width: None,
12516 },
12517 line_height,
12518 gpui::Point::default(),
12519 DisplayRow(0)..DisplayRow(6),
12520 &(0..6)
12521 .map(|row| RowInfo {
12522 buffer_row: Some(row),
12523 ..Default::default()
12524 })
12525 .collect::<Vec<_>>(),
12526 &BTreeMap::default(),
12527 Some(DisplayRow(0)),
12528 &snapshot,
12529 window,
12530 cx,
12531 )
12532 })
12533 .unwrap();
12534 assert_eq!(layouts.len(), 3);
12535
12536 let relative_rows = window
12537 .update(cx, |editor, window, cx| {
12538 let snapshot = editor.snapshot(window, cx);
12539 snapshot.calculate_relative_line_numbers(
12540 &(DisplayRow(0)..DisplayRow(6)),
12541 DisplayRow(3),
12542 true,
12543 )
12544 })
12545 .unwrap();
12546
12547 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12548 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12549 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12550 // current line has no relative number
12551 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12552 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12553 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12554
12555 let layouts = cx
12556 .update_window(*window, |_, window, cx| {
12557 element.layout_line_numbers(
12558 None,
12559 GutterDimensions {
12560 left_padding: Pixels::ZERO,
12561 right_padding: Pixels::ZERO,
12562 width: px(30.0),
12563 margin: Pixels::ZERO,
12564 git_blame_entries_width: None,
12565 },
12566 line_height,
12567 gpui::Point::default(),
12568 DisplayRow(0)..DisplayRow(6),
12569 &(0..6)
12570 .map(|row| RowInfo {
12571 buffer_row: Some(row),
12572 diff_status: Some(DiffHunkStatus::deleted(
12573 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
12574 )),
12575 ..Default::default()
12576 })
12577 .collect::<Vec<_>>(),
12578 &BTreeMap::from_iter([(DisplayRow(0), LineHighlightSpec::default())]),
12579 Some(DisplayRow(0)),
12580 &snapshot,
12581 window,
12582 cx,
12583 )
12584 })
12585 .unwrap();
12586 assert!(
12587 layouts.is_empty(),
12588 "Deleted lines should have no line number"
12589 );
12590
12591 let relative_rows = window
12592 .update(cx, |editor, window, cx| {
12593 let snapshot = editor.snapshot(window, cx);
12594 snapshot.calculate_relative_line_numbers(
12595 &(DisplayRow(0)..DisplayRow(6)),
12596 DisplayRow(3),
12597 true,
12598 )
12599 })
12600 .unwrap();
12601
12602 // Deleted lines should still have relative numbers
12603 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12604 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12605 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12606 // current line, even if deleted, has no relative number
12607 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12608 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12609 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12610 }
12611
12612 #[gpui::test]
12613 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
12614 init_test(cx, |_| {});
12615
12616 let window = cx.add_window(|window, cx| {
12617 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
12618 Editor::new(EditorMode::full(), buffer, None, window, cx)
12619 });
12620 let cx = &mut VisualTestContext::from_window(*window, cx);
12621 let editor = window.root(cx).unwrap();
12622 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12623
12624 window
12625 .update(cx, |editor, window, cx| {
12626 editor.cursor_offset_on_selection = true;
12627 editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
12628 s.select_ranges([
12629 Point::new(0, 0)..Point::new(1, 0),
12630 Point::new(3, 2)..Point::new(3, 3),
12631 Point::new(5, 6)..Point::new(6, 0),
12632 ]);
12633 });
12634 })
12635 .unwrap();
12636
12637 let (_, state) = cx.draw(
12638 point(px(500.), px(500.)),
12639 size(px(500.), px(500.)),
12640 |_, _| EditorElement::new(&editor, style),
12641 );
12642
12643 assert_eq!(state.selections.len(), 1);
12644 let local_selections = &state.selections[0].1;
12645 assert_eq!(local_selections.len(), 3);
12646 // moves cursor back one line
12647 assert_eq!(
12648 local_selections[0].head,
12649 DisplayPoint::new(DisplayRow(0), 6)
12650 );
12651 assert_eq!(
12652 local_selections[0].range,
12653 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
12654 );
12655
12656 // moves cursor back one column
12657 assert_eq!(
12658 local_selections[1].range,
12659 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
12660 );
12661 assert_eq!(
12662 local_selections[1].head,
12663 DisplayPoint::new(DisplayRow(3), 2)
12664 );
12665
12666 // leaves cursor on the max point
12667 assert_eq!(
12668 local_selections[2].range,
12669 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
12670 );
12671 assert_eq!(
12672 local_selections[2].head,
12673 DisplayPoint::new(DisplayRow(6), 0)
12674 );
12675
12676 // active lines does not include 1 (even though the range of the selection does)
12677 assert_eq!(
12678 state.active_rows.keys().cloned().collect::<Vec<_>>(),
12679 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
12680 );
12681 }
12682
12683 #[gpui::test]
12684 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
12685 init_test(cx, |_| {});
12686
12687 let window = cx.add_window(|window, cx| {
12688 let buffer = MultiBuffer::build_simple("", cx);
12689 Editor::new(EditorMode::full(), buffer, None, window, cx)
12690 });
12691 let cx = &mut VisualTestContext::from_window(*window, cx);
12692 let editor = window.root(cx).unwrap();
12693 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12694 window
12695 .update(cx, |editor, window, cx| {
12696 editor.set_placeholder_text("hello", window, cx);
12697 editor.insert_blocks(
12698 [BlockProperties {
12699 style: BlockStyle::Fixed,
12700 placement: BlockPlacement::Above(Anchor::min()),
12701 height: Some(3),
12702 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
12703 priority: 0,
12704 }],
12705 None,
12706 cx,
12707 );
12708
12709 // Blur the editor so that it displays placeholder text.
12710 window.blur();
12711 })
12712 .unwrap();
12713
12714 let (_, state) = cx.draw(
12715 point(px(500.), px(500.)),
12716 size(px(500.), px(500.)),
12717 |_, _| EditorElement::new(&editor, style),
12718 );
12719 assert_eq!(state.position_map.line_layouts.len(), 4);
12720 assert_eq!(state.line_numbers.len(), 1);
12721 assert_eq!(
12722 state
12723 .line_numbers
12724 .get(&MultiBufferRow(0))
12725 .map(|line_number| line_number
12726 .segments
12727 .first()
12728 .unwrap()
12729 .shaped_line
12730 .text
12731 .as_ref()),
12732 Some("1")
12733 );
12734 }
12735
12736 #[gpui::test]
12737 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
12738 const TAB_SIZE: u32 = 4;
12739
12740 let input_text = "\t \t|\t| a b";
12741 let expected_invisibles = vec![
12742 Invisible::Tab {
12743 line_start_offset: 0,
12744 line_end_offset: TAB_SIZE as usize,
12745 },
12746 Invisible::Whitespace {
12747 line_offset: TAB_SIZE as usize,
12748 },
12749 Invisible::Tab {
12750 line_start_offset: TAB_SIZE as usize + 1,
12751 line_end_offset: TAB_SIZE as usize * 2,
12752 },
12753 Invisible::Tab {
12754 line_start_offset: TAB_SIZE as usize * 2 + 1,
12755 line_end_offset: TAB_SIZE as usize * 3,
12756 },
12757 Invisible::Whitespace {
12758 line_offset: TAB_SIZE as usize * 3 + 1,
12759 },
12760 Invisible::Whitespace {
12761 line_offset: TAB_SIZE as usize * 3 + 3,
12762 },
12763 ];
12764 assert_eq!(
12765 expected_invisibles.len(),
12766 input_text
12767 .chars()
12768 .filter(|initial_char| initial_char.is_whitespace())
12769 .count(),
12770 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
12771 );
12772
12773 for show_line_numbers in [true, false] {
12774 init_test(cx, |s| {
12775 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12776 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
12777 });
12778
12779 let actual_invisibles = collect_invisibles_from_new_editor(
12780 cx,
12781 EditorMode::full(),
12782 input_text,
12783 px(500.0),
12784 show_line_numbers,
12785 );
12786
12787 assert_eq!(expected_invisibles, actual_invisibles);
12788 }
12789 }
12790
12791 #[gpui::test]
12792 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
12793 init_test(cx, |s| {
12794 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12795 s.defaults.tab_size = NonZeroU32::new(4);
12796 });
12797
12798 for editor_mode_without_invisibles in [
12799 EditorMode::SingleLine,
12800 EditorMode::AutoHeight {
12801 min_lines: 1,
12802 max_lines: Some(100),
12803 },
12804 ] {
12805 for show_line_numbers in [true, false] {
12806 let invisibles = collect_invisibles_from_new_editor(
12807 cx,
12808 editor_mode_without_invisibles.clone(),
12809 "\t\t\t| | a b",
12810 px(500.0),
12811 show_line_numbers,
12812 );
12813 assert!(
12814 invisibles.is_empty(),
12815 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
12816 );
12817 }
12818 }
12819 }
12820
12821 #[gpui::test]
12822 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
12823 let tab_size = 4;
12824 let input_text = "a\tbcd ".repeat(9);
12825 let repeated_invisibles = [
12826 Invisible::Tab {
12827 line_start_offset: 1,
12828 line_end_offset: tab_size as usize,
12829 },
12830 Invisible::Whitespace {
12831 line_offset: tab_size as usize + 3,
12832 },
12833 Invisible::Whitespace {
12834 line_offset: tab_size as usize + 4,
12835 },
12836 Invisible::Whitespace {
12837 line_offset: tab_size as usize + 5,
12838 },
12839 Invisible::Whitespace {
12840 line_offset: tab_size as usize + 6,
12841 },
12842 Invisible::Whitespace {
12843 line_offset: tab_size as usize + 7,
12844 },
12845 ];
12846 let expected_invisibles = std::iter::once(repeated_invisibles)
12847 .cycle()
12848 .take(9)
12849 .flatten()
12850 .collect::<Vec<_>>();
12851 assert_eq!(
12852 expected_invisibles.len(),
12853 input_text
12854 .chars()
12855 .filter(|initial_char| initial_char.is_whitespace())
12856 .count(),
12857 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
12858 );
12859 info!("Expected invisibles: {expected_invisibles:?}");
12860
12861 init_test(cx, |_| {});
12862
12863 // Put the same string with repeating whitespace pattern into editors of various size,
12864 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
12865 let resize_step = 10.0;
12866 let mut editor_width = 200.0;
12867 while editor_width <= 1000.0 {
12868 for show_line_numbers in [true, false] {
12869 update_test_language_settings(cx, |s| {
12870 s.defaults.tab_size = NonZeroU32::new(tab_size);
12871 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12872 s.defaults.preferred_line_length = Some(editor_width as u32);
12873 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
12874 });
12875
12876 let actual_invisibles = collect_invisibles_from_new_editor(
12877 cx,
12878 EditorMode::full(),
12879 &input_text,
12880 px(editor_width),
12881 show_line_numbers,
12882 );
12883
12884 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
12885 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
12886 let mut i = 0;
12887 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
12888 i = actual_index;
12889 match expected_invisibles.get(i) {
12890 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
12891 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
12892 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
12893 _ => {
12894 panic!(
12895 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
12896 )
12897 }
12898 },
12899 None => {
12900 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
12901 }
12902 }
12903 }
12904 let missing_expected_invisibles = &expected_invisibles[i + 1..];
12905 assert!(
12906 missing_expected_invisibles.is_empty(),
12907 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
12908 );
12909
12910 editor_width += resize_step;
12911 }
12912 }
12913 }
12914
12915 fn collect_invisibles_from_new_editor(
12916 cx: &mut TestAppContext,
12917 editor_mode: EditorMode,
12918 input_text: &str,
12919 editor_width: Pixels,
12920 show_line_numbers: bool,
12921 ) -> Vec<Invisible> {
12922 info!(
12923 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
12924 f32::from(editor_width)
12925 );
12926 let window = cx.add_window(|window, cx| {
12927 let buffer = MultiBuffer::build_simple(input_text, cx);
12928 Editor::new(editor_mode, buffer, None, window, cx)
12929 });
12930 let cx = &mut VisualTestContext::from_window(*window, cx);
12931 let editor = window.root(cx).unwrap();
12932
12933 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12934 window
12935 .update(cx, |editor, _, cx| {
12936 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12937 editor.set_wrap_width(Some(editor_width), cx);
12938 editor.set_show_line_numbers(show_line_numbers, cx);
12939 })
12940 .unwrap();
12941 let (_, state) = cx.draw(
12942 point(px(500.), px(500.)),
12943 size(px(500.), px(500.)),
12944 |_, _| EditorElement::new(&editor, style),
12945 );
12946 state
12947 .position_map
12948 .line_layouts
12949 .iter()
12950 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
12951 .cloned()
12952 .collect()
12953 }
12954
12955 #[gpui::test]
12956 fn test_merge_overlapping_ranges() {
12957 let base_bg = Hsla::white();
12958 let color1 = Hsla {
12959 h: 0.0,
12960 s: 0.5,
12961 l: 0.5,
12962 a: 0.5,
12963 };
12964 let color2 = Hsla {
12965 h: 120.0,
12966 s: 0.5,
12967 l: 0.5,
12968 a: 0.5,
12969 };
12970
12971 let display_point = |col| DisplayPoint::new(DisplayRow(0), col);
12972 let cols = |v: &Vec<(Range<DisplayPoint>, Hsla)>| -> Vec<(u32, u32)> {
12973 v.iter()
12974 .map(|(r, _)| (r.start.column(), r.end.column()))
12975 .collect()
12976 };
12977
12978 // Test overlapping ranges blend colors
12979 let overlapping = vec![
12980 (display_point(5)..display_point(15), color1),
12981 (display_point(10)..display_point(20), color2),
12982 ];
12983 let result = EditorElement::merge_overlapping_ranges(overlapping, base_bg);
12984 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
12985
12986 // Test middle segment should have blended color
12987 let blended = Hsla::blend(Hsla::blend(base_bg, color1), color2);
12988 assert_eq!(result[1].1, blended);
12989
12990 // Test adjacent same-color ranges merge
12991 let adjacent_same = vec![
12992 (display_point(5)..display_point(10), color1),
12993 (display_point(10)..display_point(15), color1),
12994 ];
12995 let result = EditorElement::merge_overlapping_ranges(adjacent_same, base_bg);
12996 assert_eq!(cols(&result), vec![(5, 15)]);
12997
12998 // Test contained range splits
12999 let contained = vec![
13000 (display_point(5)..display_point(20), color1),
13001 (display_point(10)..display_point(15), color2),
13002 ];
13003 let result = EditorElement::merge_overlapping_ranges(contained, base_bg);
13004 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
13005
13006 // Test multiple overlaps split at every boundary
13007 let color3 = Hsla {
13008 h: 240.0,
13009 s: 0.5,
13010 l: 0.5,
13011 a: 0.5,
13012 };
13013 let complex = vec![
13014 (display_point(5)..display_point(12), color1),
13015 (display_point(8)..display_point(16), color2),
13016 (display_point(10)..display_point(14), color3),
13017 ];
13018 let result = EditorElement::merge_overlapping_ranges(complex, base_bg);
13019 assert_eq!(
13020 cols(&result),
13021 vec![(5, 8), (8, 10), (10, 12), (12, 14), (14, 16)]
13022 );
13023 }
13024
13025 #[gpui::test]
13026 fn test_bg_segments_per_row() {
13027 let base_bg = Hsla::white();
13028
13029 // Case A: selection spans three display rows: row 1 [5, end), full row 2, row 3 [0, 7)
13030 {
13031 let selection_color = Hsla {
13032 h: 200.0,
13033 s: 0.5,
13034 l: 0.5,
13035 a: 0.5,
13036 };
13037 let player_color = PlayerColor {
13038 cursor: selection_color,
13039 background: selection_color,
13040 selection: selection_color,
13041 };
13042
13043 let spanning_selection = SelectionLayout {
13044 head: DisplayPoint::new(DisplayRow(3), 7),
13045 cursor_shape: CursorShape::Bar,
13046 is_newest: true,
13047 is_local: true,
13048 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 7),
13049 active_rows: DisplayRow(1)..DisplayRow(4),
13050 user_name: None,
13051 };
13052
13053 let selections = vec![(player_color, vec![spanning_selection])];
13054 let result = EditorElement::bg_segments_per_row(
13055 DisplayRow(0)..DisplayRow(5),
13056 &selections,
13057 &[],
13058 base_bg,
13059 );
13060
13061 assert_eq!(result.len(), 5);
13062 assert!(result[0].is_empty());
13063 assert_eq!(result[1].len(), 1);
13064 assert_eq!(result[2].len(), 1);
13065 assert_eq!(result[3].len(), 1);
13066 assert!(result[4].is_empty());
13067
13068 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
13069 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
13070 assert_eq!(result[1][0].0.end.column(), u32::MAX);
13071 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
13072 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
13073 assert_eq!(result[2][0].0.end.column(), u32::MAX);
13074 assert_eq!(result[3][0].0.start, DisplayPoint::new(DisplayRow(3), 0));
13075 assert_eq!(result[3][0].0.end, DisplayPoint::new(DisplayRow(3), 7));
13076 }
13077
13078 // Case B: selection ends exactly at the start of row 3, excluding row 3
13079 {
13080 let selection_color = Hsla {
13081 h: 120.0,
13082 s: 0.5,
13083 l: 0.5,
13084 a: 0.5,
13085 };
13086 let player_color = PlayerColor {
13087 cursor: selection_color,
13088 background: selection_color,
13089 selection: selection_color,
13090 };
13091
13092 let selection = SelectionLayout {
13093 head: DisplayPoint::new(DisplayRow(2), 0),
13094 cursor_shape: CursorShape::Bar,
13095 is_newest: true,
13096 is_local: true,
13097 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 0),
13098 active_rows: DisplayRow(1)..DisplayRow(3),
13099 user_name: None,
13100 };
13101
13102 let selections = vec![(player_color, vec![selection])];
13103 let result = EditorElement::bg_segments_per_row(
13104 DisplayRow(0)..DisplayRow(4),
13105 &selections,
13106 &[],
13107 base_bg,
13108 );
13109
13110 assert_eq!(result.len(), 4);
13111 assert!(result[0].is_empty());
13112 assert_eq!(result[1].len(), 1);
13113 assert_eq!(result[2].len(), 1);
13114 assert!(result[3].is_empty());
13115
13116 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
13117 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
13118 assert_eq!(result[1][0].0.end.column(), u32::MAX);
13119 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
13120 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
13121 assert_eq!(result[2][0].0.end.column(), u32::MAX);
13122 }
13123 }
13124
13125 #[cfg(test)]
13126 fn generate_test_run(len: usize, color: Hsla) -> TextRun {
13127 TextRun {
13128 len,
13129 color,
13130 ..Default::default()
13131 }
13132 }
13133
13134 #[gpui::test]
13135 fn test_split_runs_by_bg_segments(cx: &mut gpui::TestAppContext) {
13136 init_test(cx, |_| {});
13137
13138 let dx = |start: u32, end: u32| {
13139 DisplayPoint::new(DisplayRow(0), start)..DisplayPoint::new(DisplayRow(0), end)
13140 };
13141
13142 let text_color = Hsla {
13143 h: 210.0,
13144 s: 0.1,
13145 l: 0.4,
13146 a: 1.0,
13147 };
13148 let bg_1 = Hsla {
13149 h: 30.0,
13150 s: 0.6,
13151 l: 0.8,
13152 a: 1.0,
13153 };
13154 let bg_2 = Hsla {
13155 h: 200.0,
13156 s: 0.6,
13157 l: 0.2,
13158 a: 1.0,
13159 };
13160 let min_contrast = 45.0;
13161 let adjusted_bg1 = ensure_minimum_contrast(text_color, bg_1, min_contrast);
13162 let adjusted_bg2 = ensure_minimum_contrast(text_color, bg_2, min_contrast);
13163
13164 // Case A: single run; disjoint segments inside the run
13165 {
13166 let runs = vec![generate_test_run(20, text_color)];
13167 let segs = vec![(dx(5, 10), bg_1), (dx(12, 16), bg_2)];
13168 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13169 // Expected slices: [0,5) [5,10) [10,12) [12,16) [16,20)
13170 assert_eq!(
13171 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13172 vec![5, 5, 2, 4, 4]
13173 );
13174 assert_eq!(out[0].color, text_color);
13175 assert_eq!(out[1].color, adjusted_bg1);
13176 assert_eq!(out[2].color, text_color);
13177 assert_eq!(out[3].color, adjusted_bg2);
13178 assert_eq!(out[4].color, text_color);
13179 }
13180
13181 // Case B: multiple runs; segment extends to end of line (u32::MAX)
13182 {
13183 let runs = vec![
13184 generate_test_run(8, text_color),
13185 generate_test_run(7, text_color),
13186 ];
13187 let segs = vec![(dx(6, u32::MAX), bg_1)];
13188 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13189 // Expected slices across runs: [0,6) [6,8) | [0,7)
13190 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![6, 2, 7]);
13191 assert_eq!(out[0].color, text_color);
13192 assert_eq!(out[1].color, adjusted_bg1);
13193 assert_eq!(out[2].color, adjusted_bg1);
13194 }
13195
13196 // Case C: multi-byte characters
13197 {
13198 // for text: "Hello π δΈη!"
13199 let runs = vec![
13200 generate_test_run(5, text_color), // "Hello"
13201 generate_test_run(6, text_color), // " π "
13202 generate_test_run(6, text_color), // "δΈη"
13203 generate_test_run(1, text_color), // "!"
13204 ];
13205 // selecting "π δΈ"
13206 let segs = vec![(dx(6, 14), bg_1)];
13207 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13208 // "Hello" | " " | "π " | "δΈ" | "η" | "!"
13209 assert_eq!(
13210 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13211 vec![5, 1, 5, 3, 3, 1]
13212 );
13213 assert_eq!(out[0].color, text_color); // "Hello"
13214 assert_eq!(out[2].color, adjusted_bg1); // "π "
13215 assert_eq!(out[3].color, adjusted_bg1); // "δΈ"
13216 assert_eq!(out[4].color, text_color); // "η"
13217 assert_eq!(out[5].color, text_color); // "!"
13218 }
13219
13220 // Case D: split multiple consecutive text runs with segments
13221 {
13222 let segs = vec![
13223 (dx(2, 4), bg_1), // selecting "cd"
13224 (dx(4, 8), bg_2), // selecting "efgh"
13225 (dx(9, 11), bg_1), // selecting "jk"
13226 (dx(12, 16), bg_2), // selecting "mnop"
13227 (dx(18, 19), bg_1), // selecting "s"
13228 ];
13229
13230 // for text: "abcdef"
13231 let runs = vec![
13232 generate_test_run(2, text_color), // ab
13233 generate_test_run(4, text_color), // cdef
13234 ];
13235 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13236 // new splits "ab", "cd", "ef"
13237 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![2, 2, 2]);
13238 assert_eq!(out[0].color, text_color);
13239 assert_eq!(out[1].color, adjusted_bg1);
13240 assert_eq!(out[2].color, adjusted_bg2);
13241
13242 // for text: "ghijklmn"
13243 let runs = vec![
13244 generate_test_run(3, text_color), // ghi
13245 generate_test_run(2, text_color), // jk
13246 generate_test_run(3, text_color), // lmn
13247 ];
13248 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 6); // 2 + 4 from first run
13249 // new splits "gh", "i", "jk", "l", "mn"
13250 assert_eq!(
13251 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13252 vec![2, 1, 2, 1, 2]
13253 );
13254 assert_eq!(out[0].color, adjusted_bg2);
13255 assert_eq!(out[1].color, text_color);
13256 assert_eq!(out[2].color, adjusted_bg1);
13257 assert_eq!(out[3].color, text_color);
13258 assert_eq!(out[4].color, adjusted_bg2);
13259
13260 // for text: "opqrs"
13261 let runs = vec![
13262 generate_test_run(1, text_color), // o
13263 generate_test_run(4, text_color), // pqrs
13264 ];
13265 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 14); // 6 + 3 + 2 + 3 from first two runs
13266 // new splits "o", "p", "qr", "s"
13267 assert_eq!(
13268 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13269 vec![1, 1, 2, 1]
13270 );
13271 assert_eq!(out[0].color, adjusted_bg2);
13272 assert_eq!(out[1].color, adjusted_bg2);
13273 assert_eq!(out[2].color, text_color);
13274 assert_eq!(out[3].color, adjusted_bg1);
13275 }
13276 }
13277}