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