1use crate::{
2 ActiveDiagnostic, BlockId, CURSORS_VISIBLE_FOR, ChunkRendererContext, ChunkReplacement,
3 CodeActionSource, ColumnarMode, ConflictsOurs, ConflictsOursMarker, ConflictsOuter,
4 ConflictsTheirs, ConflictsTheirsMarker, ContextMenuPlacement, CursorShape, CustomBlockId,
5 DisplayDiffHunk, DisplayPoint, DisplayRow, DocumentHighlightRead, DocumentHighlightWrite,
6 EditDisplayMode, EditPrediction, Editor, EditorMode, EditorSettings, EditorSnapshot,
7 EditorStyle, FILE_HEADER_HEIGHT, FocusedBlock, GutterDimensions, HalfPageDown, HalfPageUp,
8 HandleInput, HoveredCursor, InlayHintRefreshReason, JumpData, LineDown, LineHighlight, LineUp,
9 MAX_LINE_LEN, MINIMAP_FONT_SIZE, MULTI_BUFFER_EXCERPT_HEADER_HEIGHT, OpenExcerpts, PageDown,
10 PageUp, PhantomBreakpointIndicator, PhantomDiffReviewIndicator, Point, RowExt, RowRangeExt,
11 SelectPhase, SelectedTextHighlight, Selection, SelectionDragState, SelectionEffects,
12 SizingBehavior, SoftWrap, StickyHeaderExcerpt, ToPoint, ToggleFold, ToggleFoldAll,
13 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
14 column_pixels,
15 display_map::{
16 Block, BlockContext, BlockStyle, ChunkRendererId, DisplaySnapshot, EditorMargins,
17 HighlightKey, HighlightedChunk, ToDisplayPoint,
18 },
19 editor_settings::{
20 CurrentLineHighlight, DocumentColorsRenderMode, DoubleClickInMultibuffer, Minimap,
21 MinimapThumb, MinimapThumbBorder, ScrollBeyondLastLine, ScrollbarAxes,
22 ScrollbarDiagnostics, ShowMinimap,
23 },
24 git::blame::{BlameRenderer, GitBlame, GlobalBlameRenderer},
25 hover_popover::{
26 self, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
27 POPOVER_RIGHT_OFFSET, hover_at,
28 },
29 inlay_hint_settings,
30 items::BufferSearchHighlights,
31 mouse_context_menu::{self, MenuPosition},
32 scroll::{
33 ActiveScrollbarState, Autoscroll, ScrollOffset, ScrollPixelOffset, ScrollbarThumbState,
34 scroll_amount::ScrollAmount,
35 },
36};
37use buffer_diff::{DiffHunkStatus, DiffHunkStatusKind};
38use collections::{BTreeMap, HashMap};
39use feature_flags::{DiffReviewFeatureFlag, FeatureFlagAppExt as _};
40use file_icons::FileIcons;
41use git::{Oid, blame::BlameEntry, commit::ParsedCommitMessage, status::FileStatus};
42use gpui::{
43 Action, Along, AnyElement, App, AppContext, AvailableSpace, Axis as ScrollbarAxis, BorderStyle,
44 Bounds, ClickEvent, ClipboardItem, ContentMask, Context, Corner, Corners, CursorStyle,
45 DispatchPhase, Edges, Element, ElementInputHandler, Entity, Focusable as _, FontId, FontWeight,
46 GlobalElementId, Hitbox, HitboxBehavior, Hsla, InteractiveElement, IntoElement, IsZero,
47 KeybindingKeystroke, Length, Modifiers, ModifiersChangedEvent, MouseButton, MouseClickEvent,
48 MouseDownEvent, MouseMoveEvent, MousePressureEvent, MouseUpEvent, PaintQuad, ParentElement,
49 Pixels, PressureStage, ScrollDelta, ScrollHandle, ScrollWheelEvent, ShapedLine, SharedString,
50 Size, StatefulInteractiveElement, Style, Styled, StyledText, TextAlign, TextRun,
51 TextStyleRefinement, WeakEntity, Window, anchored, deferred, div, fill, linear_color_stop,
52 linear_gradient, outline, point, px, quad, relative, size, solid_background, transparent_black,
53};
54use itertools::Itertools;
55use language::{IndentGuideSettings, language_settings::ShowWhitespaceSetting};
56use markdown::Markdown;
57use multi_buffer::{
58 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, ExpandInfo, MultiBufferPoint,
59 MultiBufferRow, RowInfo,
60};
61
62use edit_prediction_types::EditPredictionGranularity;
63use project::{
64 DisableAiSettings, Entry, ProjectPath,
65 debugger::breakpoint_store::{Breakpoint, BreakpointSessionState},
66 project_settings::ProjectSettings,
67};
68use settings::{
69 GitGutterSetting, GitHunkStyleSetting, IndentGuideBackgroundColoring, IndentGuideColoring,
70 RelativeLineNumbers, Settings,
71};
72use smallvec::{SmallVec, smallvec};
73use std::{
74 any::TypeId,
75 borrow::Cow,
76 cell::Cell,
77 cmp::{self, Ordering},
78 fmt::{self, Write},
79 iter, mem,
80 ops::{Deref, Range},
81 path::{self, Path},
82 rc::Rc,
83 sync::Arc,
84 time::{Duration, Instant},
85};
86use sum_tree::Bias;
87use text::{BufferId, SelectionGoal};
88use theme::{ActiveTheme, Appearance, BufferLineHeight, PlayerColor};
89use ui::utils::ensure_minimum_contrast;
90use ui::{
91 ButtonLike, ContextMenu, Indicator, KeyBinding, POPOVER_Y_PADDING, Tooltip, prelude::*,
92 right_click_menu, scrollbars::ShowScrollbar, text_for_keystroke,
93};
94use unicode_segmentation::UnicodeSegmentation;
95use util::post_inc;
96use util::{RangeExt, ResultExt, debug_panic};
97use workspace::{
98 CollaboratorId, ItemHandle, ItemSettings, OpenInTerminal, OpenTerminal, RevealInProjectPanel,
99 Workspace,
100 item::{BreadcrumbText, Item, ItemBufferKind},
101 notifications::NotifyTaskExt,
102};
103
104/// Determines what kinds of highlights should be applied to a lines background.
105#[derive(Clone, Copy, Default)]
106struct LineHighlightSpec {
107 selection: bool,
108 breakpoint: bool,
109 _active_stack_frame: bool,
110}
111
112#[derive(Debug)]
113struct SelectionLayout {
114 head: DisplayPoint,
115 cursor_shape: CursorShape,
116 is_newest: bool,
117 is_local: bool,
118 range: Range<DisplayPoint>,
119 active_rows: Range<DisplayRow>,
120 user_name: Option<SharedString>,
121}
122
123struct InlineBlameLayout {
124 element: AnyElement,
125 bounds: Bounds<Pixels>,
126 buffer_id: BufferId,
127 entry: BlameEntry,
128}
129
130impl SelectionLayout {
131 fn new<T: ToPoint + ToDisplayPoint + Clone>(
132 selection: Selection<T>,
133 line_mode: bool,
134 cursor_offset: bool,
135 cursor_shape: CursorShape,
136 map: &DisplaySnapshot,
137 is_newest: bool,
138 is_local: bool,
139 user_name: Option<SharedString>,
140 ) -> Self {
141 let point_selection = selection.map(|p| p.to_point(map.buffer_snapshot()));
142 let display_selection = point_selection.map(|p| p.to_display_point(map));
143 let mut range = display_selection.range();
144 let mut head = display_selection.head();
145 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
146 ..map.next_line_boundary(point_selection.end).1.row();
147
148 // vim visual line mode
149 if line_mode {
150 let point_range = map.expand_to_line(point_selection.range());
151 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
152 }
153
154 // any vim visual mode (including line mode)
155 if cursor_offset && !range.is_empty() && !selection.reversed {
156 if head.column() > 0 {
157 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left);
158 } else if head.row().0 > 0 && head != map.max_point() {
159 head = map.clip_point(
160 DisplayPoint::new(
161 head.row().previous_row(),
162 map.line_len(head.row().previous_row()),
163 ),
164 Bias::Left,
165 );
166 // updating range.end is a no-op unless you're cursor is
167 // on the newline containing a multi-buffer divider
168 // in which case the clip_point may have moved the head up
169 // an additional row.
170 range.end = DisplayPoint::new(head.row().next_row(), 0);
171 active_rows.end = head.row();
172 }
173 }
174
175 Self {
176 head,
177 cursor_shape,
178 is_newest,
179 is_local,
180 range,
181 active_rows,
182 user_name,
183 }
184 }
185}
186
187#[derive(Default)]
188struct RenderBlocksOutput {
189 blocks: Vec<BlockLayout>,
190 row_block_types: HashMap<DisplayRow, bool>,
191 resized_blocks: Option<HashMap<CustomBlockId, u32>>,
192}
193
194pub struct EditorElement {
195 editor: Entity<Editor>,
196 style: EditorStyle,
197}
198
199impl EditorElement {
200 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
201
202 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
203 Self {
204 editor: editor.clone(),
205 style,
206 }
207 }
208
209 fn register_actions(&self, window: &mut Window, cx: &mut App) {
210 let editor = &self.editor;
211 editor.update(cx, |editor, cx| {
212 for action in editor.editor_actions.borrow().values() {
213 (action)(editor, window, cx)
214 }
215 });
216
217 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
218 crate::clangd_ext::apply_related_actions(editor, window, cx);
219
220 register_action(editor, window, Editor::open_context_menu);
221 register_action(editor, window, Editor::move_left);
222 register_action(editor, window, Editor::move_right);
223 register_action(editor, window, Editor::move_down);
224 register_action(editor, window, Editor::move_down_by_lines);
225 register_action(editor, window, Editor::select_down_by_lines);
226 register_action(editor, window, Editor::move_up);
227 register_action(editor, window, Editor::move_up_by_lines);
228 register_action(editor, window, Editor::select_up_by_lines);
229 register_action(editor, window, Editor::select_page_down);
230 register_action(editor, window, Editor::select_page_up);
231 register_action(editor, window, Editor::cancel);
232 register_action(editor, window, Editor::newline);
233 register_action(editor, window, Editor::newline_above);
234 register_action(editor, window, Editor::newline_below);
235 register_action(editor, window, Editor::backspace);
236 register_action(editor, window, Editor::blame_hover);
237 register_action(editor, window, Editor::delete);
238 register_action(editor, window, Editor::tab);
239 register_action(editor, window, Editor::next_snippet_tabstop);
240 register_action(editor, window, Editor::previous_snippet_tabstop);
241 register_action(editor, window, Editor::backtab);
242 register_action(editor, window, Editor::indent);
243 register_action(editor, window, Editor::outdent);
244 register_action(editor, window, Editor::autoindent);
245 register_action(editor, window, Editor::delete_line);
246 register_action(editor, window, Editor::join_lines);
247 register_action(editor, window, Editor::sort_lines_by_length);
248 register_action(editor, window, Editor::sort_lines_case_sensitive);
249 register_action(editor, window, Editor::sort_lines_case_insensitive);
250 register_action(editor, window, Editor::reverse_lines);
251 register_action(editor, window, Editor::shuffle_lines);
252 register_action(editor, window, Editor::rotate_selections_forward);
253 register_action(editor, window, Editor::rotate_selections_backward);
254 register_action(editor, window, Editor::convert_indentation_to_spaces);
255 register_action(editor, window, Editor::convert_indentation_to_tabs);
256 register_action(editor, window, Editor::convert_to_upper_case);
257 register_action(editor, window, Editor::convert_to_lower_case);
258 register_action(editor, window, Editor::convert_to_title_case);
259 register_action(editor, window, Editor::convert_to_snake_case);
260 register_action(editor, window, Editor::convert_to_kebab_case);
261 register_action(editor, window, Editor::convert_to_upper_camel_case);
262 register_action(editor, window, Editor::convert_to_lower_camel_case);
263 register_action(editor, window, Editor::convert_to_opposite_case);
264 register_action(editor, window, Editor::convert_to_sentence_case);
265 register_action(editor, window, Editor::toggle_case);
266 register_action(editor, window, Editor::convert_to_rot13);
267 register_action(editor, window, Editor::convert_to_rot47);
268 register_action(editor, window, Editor::delete_to_previous_word_start);
269 register_action(editor, window, Editor::delete_to_previous_subword_start);
270 register_action(editor, window, Editor::delete_to_next_word_end);
271 register_action(editor, window, Editor::delete_to_next_subword_end);
272 register_action(editor, window, Editor::delete_to_beginning_of_line);
273 register_action(editor, window, Editor::delete_to_end_of_line);
274 register_action(editor, window, Editor::cut_to_end_of_line);
275 register_action(editor, window, Editor::duplicate_line_up);
276 register_action(editor, window, Editor::duplicate_line_down);
277 register_action(editor, window, Editor::duplicate_selection);
278 register_action(editor, window, Editor::move_line_up);
279 register_action(editor, window, Editor::move_line_down);
280 register_action(editor, window, Editor::transpose);
281 register_action(editor, window, Editor::rewrap);
282 register_action(editor, window, Editor::cut);
283 register_action(editor, window, Editor::kill_ring_cut);
284 register_action(editor, window, Editor::kill_ring_yank);
285 register_action(editor, window, Editor::copy);
286 register_action(editor, window, Editor::copy_and_trim);
287 register_action(editor, window, Editor::diff_clipboard_with_selection);
288 register_action(editor, window, Editor::paste);
289 register_action(editor, window, Editor::undo);
290 register_action(editor, window, Editor::redo);
291 register_action(editor, window, Editor::move_page_up);
292 register_action(editor, window, Editor::move_page_down);
293 register_action(editor, window, Editor::next_screen);
294 register_action(editor, window, Editor::scroll_cursor_top);
295 register_action(editor, window, Editor::scroll_cursor_center);
296 register_action(editor, window, Editor::scroll_cursor_bottom);
297 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
298 register_action(editor, window, |editor, _: &LineDown, window, cx| {
299 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
300 });
301 register_action(editor, window, |editor, _: &LineUp, window, cx| {
302 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
303 });
304 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
305 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
306 });
307 register_action(
308 editor,
309 window,
310 |editor, HandleInput(text): &HandleInput, window, cx| {
311 if text.is_empty() {
312 return;
313 }
314 editor.handle_input(text, window, cx);
315 },
316 );
317 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
318 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
319 });
320 register_action(editor, window, |editor, _: &PageDown, window, cx| {
321 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
322 });
323 register_action(editor, window, |editor, _: &PageUp, window, cx| {
324 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
325 });
326 register_action(editor, window, Editor::move_to_previous_word_start);
327 register_action(editor, window, Editor::move_to_previous_subword_start);
328 register_action(editor, window, Editor::move_to_next_word_end);
329 register_action(editor, window, Editor::move_to_next_subword_end);
330 register_action(editor, window, Editor::move_to_beginning_of_line);
331 register_action(editor, window, Editor::move_to_end_of_line);
332 register_action(editor, window, Editor::move_to_start_of_paragraph);
333 register_action(editor, window, Editor::move_to_end_of_paragraph);
334 register_action(editor, window, Editor::move_to_beginning);
335 register_action(editor, window, Editor::move_to_end);
336 register_action(editor, window, Editor::move_to_start_of_excerpt);
337 register_action(editor, window, Editor::move_to_start_of_next_excerpt);
338 register_action(editor, window, Editor::move_to_end_of_excerpt);
339 register_action(editor, window, Editor::move_to_end_of_previous_excerpt);
340 register_action(editor, window, Editor::select_up);
341 register_action(editor, window, Editor::select_down);
342 register_action(editor, window, Editor::select_left);
343 register_action(editor, window, Editor::select_right);
344 register_action(editor, window, Editor::select_to_previous_word_start);
345 register_action(editor, window, Editor::select_to_previous_subword_start);
346 register_action(editor, window, Editor::select_to_next_word_end);
347 register_action(editor, window, Editor::select_to_next_subword_end);
348 register_action(editor, window, Editor::select_to_beginning_of_line);
349 register_action(editor, window, Editor::select_to_end_of_line);
350 register_action(editor, window, Editor::select_to_start_of_paragraph);
351 register_action(editor, window, Editor::select_to_end_of_paragraph);
352 register_action(editor, window, Editor::select_to_start_of_excerpt);
353 register_action(editor, window, Editor::select_to_start_of_next_excerpt);
354 register_action(editor, window, Editor::select_to_end_of_excerpt);
355 register_action(editor, window, Editor::select_to_end_of_previous_excerpt);
356 register_action(editor, window, Editor::select_to_beginning);
357 register_action(editor, window, Editor::select_to_end);
358 register_action(editor, window, Editor::select_all);
359 register_action(editor, window, |editor, action, window, cx| {
360 editor.select_all_matches(action, window, cx).log_err();
361 });
362 register_action(editor, window, Editor::select_line);
363 register_action(editor, window, Editor::split_selection_into_lines);
364 register_action(editor, window, Editor::add_selection_above);
365 register_action(editor, window, Editor::add_selection_below);
366 register_action(editor, window, Editor::insert_snippet_at_selections);
367 register_action(editor, window, |editor, action, window, cx| {
368 editor.select_next(action, window, cx).log_err();
369 });
370 register_action(editor, window, |editor, action, window, cx| {
371 editor.select_previous(action, window, cx).log_err();
372 });
373 register_action(editor, window, |editor, action, window, cx| {
374 editor.find_next_match(action, window, cx).log_err();
375 });
376 register_action(editor, window, |editor, action, window, cx| {
377 editor.find_previous_match(action, window, cx).log_err();
378 });
379 register_action(editor, window, Editor::toggle_comments);
380 register_action(editor, window, Editor::select_larger_syntax_node);
381 register_action(editor, window, Editor::select_smaller_syntax_node);
382 register_action(editor, window, Editor::select_next_syntax_node);
383 register_action(editor, window, Editor::select_prev_syntax_node);
384 register_action(editor, window, Editor::unwrap_syntax_node);
385 register_action(editor, window, Editor::move_to_start_of_larger_syntax_node);
386 register_action(editor, window, Editor::move_to_end_of_larger_syntax_node);
387 register_action(editor, window, Editor::select_enclosing_symbol);
388 register_action(editor, window, Editor::move_to_enclosing_bracket);
389 register_action(editor, window, Editor::undo_selection);
390 register_action(editor, window, Editor::redo_selection);
391 if editor.read(cx).buffer_kind(cx) == ItemBufferKind::Multibuffer {
392 register_action(editor, window, Editor::expand_excerpts);
393 register_action(editor, window, Editor::expand_excerpts_up);
394 register_action(editor, window, Editor::expand_excerpts_down);
395 }
396 register_action(editor, window, Editor::go_to_diagnostic);
397 register_action(editor, window, Editor::go_to_prev_diagnostic);
398 register_action(editor, window, Editor::go_to_next_hunk);
399 register_action(editor, window, Editor::go_to_prev_hunk);
400 register_action(editor, window, Editor::go_to_next_document_highlight);
401 register_action(editor, window, Editor::go_to_prev_document_highlight);
402 register_action(editor, window, |editor, action, window, cx| {
403 editor
404 .go_to_definition(action, window, cx)
405 .detach_and_log_err(cx);
406 });
407 register_action(editor, window, |editor, action, window, cx| {
408 editor
409 .go_to_definition_split(action, window, cx)
410 .detach_and_log_err(cx);
411 });
412 register_action(editor, window, |editor, action, window, cx| {
413 editor
414 .go_to_declaration(action, window, cx)
415 .detach_and_log_err(cx);
416 });
417 register_action(editor, window, |editor, action, window, cx| {
418 editor
419 .go_to_declaration_split(action, window, cx)
420 .detach_and_log_err(cx);
421 });
422 register_action(editor, window, |editor, action, window, cx| {
423 editor
424 .go_to_implementation(action, window, cx)
425 .detach_and_log_err(cx);
426 });
427 register_action(editor, window, |editor, action, window, cx| {
428 editor
429 .go_to_implementation_split(action, window, cx)
430 .detach_and_log_err(cx);
431 });
432 register_action(editor, window, |editor, action, window, cx| {
433 editor
434 .go_to_type_definition(action, window, cx)
435 .detach_and_log_err(cx);
436 });
437 register_action(editor, window, |editor, action, window, cx| {
438 editor
439 .go_to_type_definition_split(action, window, cx)
440 .detach_and_log_err(cx);
441 });
442 register_action(editor, window, Editor::open_url);
443 register_action(editor, window, Editor::open_selected_filename);
444 register_action(editor, window, Editor::fold);
445 register_action(editor, window, Editor::fold_at_level);
446 register_action(editor, window, Editor::fold_at_level_1);
447 register_action(editor, window, Editor::fold_at_level_2);
448 register_action(editor, window, Editor::fold_at_level_3);
449 register_action(editor, window, Editor::fold_at_level_4);
450 register_action(editor, window, Editor::fold_at_level_5);
451 register_action(editor, window, Editor::fold_at_level_6);
452 register_action(editor, window, Editor::fold_at_level_7);
453 register_action(editor, window, Editor::fold_at_level_8);
454 register_action(editor, window, Editor::fold_at_level_9);
455 register_action(editor, window, Editor::fold_all);
456 register_action(editor, window, Editor::fold_function_bodies);
457 register_action(editor, window, Editor::fold_recursive);
458 register_action(editor, window, Editor::toggle_fold);
459 register_action(editor, window, Editor::toggle_fold_recursive);
460 register_action(editor, window, Editor::toggle_fold_all);
461 register_action(editor, window, Editor::unfold_lines);
462 register_action(editor, window, Editor::unfold_recursive);
463 register_action(editor, window, Editor::unfold_all);
464 register_action(editor, window, Editor::fold_selected_ranges);
465 register_action(editor, window, Editor::set_mark);
466 register_action(editor, window, Editor::swap_selection_ends);
467 register_action(editor, window, Editor::show_completions);
468 register_action(editor, window, Editor::show_word_completions);
469 register_action(editor, window, Editor::toggle_code_actions);
470 register_action(editor, window, Editor::open_excerpts);
471 register_action(editor, window, Editor::open_excerpts_in_split);
472 register_action(editor, window, Editor::toggle_soft_wrap);
473 register_action(editor, window, Editor::toggle_tab_bar);
474 register_action(editor, window, Editor::toggle_line_numbers);
475 register_action(editor, window, Editor::toggle_relative_line_numbers);
476 register_action(editor, window, Editor::toggle_indent_guides);
477 register_action(editor, window, Editor::toggle_inlay_hints);
478 register_action(editor, window, Editor::toggle_edit_predictions);
479 if editor.read(cx).diagnostics_enabled() {
480 register_action(editor, window, Editor::toggle_diagnostics);
481 }
482 if editor.read(cx).inline_diagnostics_enabled() {
483 register_action(editor, window, Editor::toggle_inline_diagnostics);
484 }
485 if editor.read(cx).supports_minimap(cx) {
486 register_action(editor, window, Editor::toggle_minimap);
487 }
488 register_action(editor, window, hover_popover::hover);
489 register_action(editor, window, Editor::reveal_in_finder);
490 register_action(editor, window, Editor::copy_path);
491 register_action(editor, window, Editor::copy_relative_path);
492 register_action(editor, window, Editor::copy_file_name);
493 register_action(editor, window, Editor::copy_file_name_without_extension);
494 register_action(editor, window, Editor::copy_highlight_json);
495 register_action(editor, window, Editor::copy_permalink_to_line);
496 register_action(editor, window, Editor::open_permalink_to_line);
497 register_action(editor, window, Editor::copy_file_location);
498 register_action(editor, window, Editor::toggle_git_blame);
499 register_action(editor, window, Editor::toggle_git_blame_inline);
500 register_action(editor, window, Editor::open_git_blame_commit);
501 register_action(editor, window, Editor::toggle_selected_diff_hunks);
502 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
503 register_action(editor, window, Editor::stage_and_next);
504 register_action(editor, window, Editor::unstage_and_next);
505 register_action(editor, window, Editor::expand_all_diff_hunks);
506 register_action(editor, window, Editor::collapse_all_diff_hunks);
507 register_action(editor, window, Editor::toggle_review_comments_expanded);
508 register_action(editor, window, Editor::submit_diff_review_comment_action);
509 register_action(editor, window, Editor::edit_review_comment);
510 register_action(editor, window, Editor::delete_review_comment);
511 register_action(editor, window, Editor::confirm_edit_review_comment_action);
512 register_action(editor, window, Editor::cancel_edit_review_comment_action);
513 register_action(editor, window, Editor::go_to_previous_change);
514 register_action(editor, window, Editor::go_to_next_change);
515 register_action(editor, window, Editor::go_to_prev_reference);
516 register_action(editor, window, Editor::go_to_next_reference);
517
518 register_action(editor, window, |editor, action, window, cx| {
519 if let Some(task) = editor.format(action, window, cx) {
520 task.detach_and_notify_err(window, cx);
521 } else {
522 cx.propagate();
523 }
524 });
525 register_action(editor, window, |editor, action, window, cx| {
526 if let Some(task) = editor.format_selections(action, window, cx) {
527 task.detach_and_notify_err(window, cx);
528 } else {
529 cx.propagate();
530 }
531 });
532 register_action(editor, window, |editor, action, window, cx| {
533 if let Some(task) = editor.organize_imports(action, window, cx) {
534 task.detach_and_notify_err(window, cx);
535 } else {
536 cx.propagate();
537 }
538 });
539 register_action(editor, window, Editor::restart_language_server);
540 register_action(editor, window, Editor::stop_language_server);
541 register_action(editor, window, Editor::show_character_palette);
542 register_action(editor, window, |editor, action, window, cx| {
543 if let Some(task) = editor.confirm_completion(action, window, cx) {
544 task.detach_and_notify_err(window, cx);
545 } else {
546 cx.propagate();
547 }
548 });
549 register_action(editor, window, |editor, action, window, cx| {
550 if let Some(task) = editor.confirm_completion_replace(action, window, cx) {
551 task.detach_and_notify_err(window, cx);
552 } else {
553 cx.propagate();
554 }
555 });
556 register_action(editor, window, |editor, action, window, cx| {
557 if let Some(task) = editor.confirm_completion_insert(action, window, cx) {
558 task.detach_and_notify_err(window, cx);
559 } else {
560 cx.propagate();
561 }
562 });
563 register_action(editor, window, |editor, action, window, cx| {
564 if let Some(task) = editor.compose_completion(action, window, cx) {
565 task.detach_and_notify_err(window, cx);
566 } else {
567 cx.propagate();
568 }
569 });
570 register_action(editor, window, |editor, action, window, cx| {
571 if let Some(task) = editor.confirm_code_action(action, window, cx) {
572 task.detach_and_notify_err(window, cx);
573 } else {
574 cx.propagate();
575 }
576 });
577 register_action(editor, window, |editor, action, window, cx| {
578 if let Some(task) = editor.rename(action, window, cx) {
579 task.detach_and_notify_err(window, cx);
580 } else {
581 cx.propagate();
582 }
583 });
584 register_action(editor, window, |editor, action, window, cx| {
585 if let Some(task) = editor.confirm_rename(action, window, cx) {
586 task.detach_and_notify_err(window, cx);
587 } else {
588 cx.propagate();
589 }
590 });
591 register_action(editor, window, |editor, action, window, cx| {
592 if let Some(task) = editor.find_all_references(action, window, cx) {
593 task.detach_and_log_err(cx);
594 } else {
595 cx.propagate();
596 }
597 });
598 register_action(editor, window, Editor::show_signature_help);
599 register_action(editor, window, Editor::signature_help_prev);
600 register_action(editor, window, Editor::signature_help_next);
601 register_action(editor, window, Editor::show_edit_prediction);
602 register_action(editor, window, Editor::context_menu_first);
603 register_action(editor, window, Editor::context_menu_prev);
604 register_action(editor, window, Editor::context_menu_next);
605 register_action(editor, window, Editor::context_menu_last);
606 register_action(editor, window, Editor::display_cursor_names);
607 register_action(editor, window, Editor::unique_lines_case_insensitive);
608 register_action(editor, window, Editor::unique_lines_case_sensitive);
609 register_action(editor, window, Editor::accept_next_word_edit_prediction);
610 register_action(editor, window, Editor::accept_next_line_edit_prediction);
611 register_action(editor, window, Editor::accept_edit_prediction);
612 register_action(editor, window, Editor::restore_file);
613 register_action(editor, window, Editor::git_restore);
614 register_action(editor, window, Editor::apply_all_diff_hunks);
615 register_action(editor, window, Editor::apply_selected_diff_hunks);
616 register_action(editor, window, Editor::open_active_item_in_terminal);
617 register_action(editor, window, Editor::reload_file);
618 register_action(editor, window, Editor::spawn_nearest_task);
619 register_action(editor, window, Editor::insert_uuid_v4);
620 register_action(editor, window, Editor::insert_uuid_v7);
621 register_action(editor, window, Editor::open_selections_in_multibuffer);
622 register_action(editor, window, Editor::toggle_breakpoint);
623 register_action(editor, window, Editor::edit_log_breakpoint);
624 register_action(editor, window, Editor::enable_breakpoint);
625 register_action(editor, window, Editor::disable_breakpoint);
626 register_action(editor, window, Editor::toggle_read_only);
627 if editor.read(cx).enable_wrap_selections_in_tag(cx) {
628 register_action(editor, window, Editor::wrap_selections_in_tag);
629 }
630 }
631
632 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
633 let position_map = layout.position_map.clone();
634 window.on_key_event({
635 let editor = self.editor.clone();
636 move |event: &ModifiersChangedEvent, phase, window, cx| {
637 if phase != DispatchPhase::Bubble {
638 return;
639 }
640 editor.update(cx, |editor, cx| {
641 let inlay_hint_settings = inlay_hint_settings(
642 editor.selections.newest_anchor().head(),
643 &editor.buffer.read(cx).snapshot(cx),
644 cx,
645 );
646
647 if let Some(inlay_modifiers) = inlay_hint_settings
648 .toggle_on_modifiers_press
649 .as_ref()
650 .filter(|modifiers| modifiers.modified())
651 {
652 editor.refresh_inlay_hints(
653 InlayHintRefreshReason::ModifiersChanged(
654 inlay_modifiers == &event.modifiers,
655 ),
656 cx,
657 );
658 }
659
660 if editor.hover_state.focused(window, cx) {
661 return;
662 }
663
664 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
665 })
666 }
667 });
668 }
669
670 fn mouse_left_down(
671 editor: &mut Editor,
672 event: &MouseDownEvent,
673 position_map: &PositionMap,
674 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
675 window: &mut Window,
676 cx: &mut Context<Editor>,
677 ) {
678 if window.default_prevented() {
679 return;
680 }
681
682 let text_hitbox = &position_map.text_hitbox;
683 let gutter_hitbox = &position_map.gutter_hitbox;
684 let point_for_position = position_map.point_for_position(event.position);
685 let mut click_count = event.click_count;
686 let mut modifiers = event.modifiers;
687
688 if let Some(hovered_hunk) =
689 position_map
690 .display_hunks
691 .iter()
692 .find_map(|(hunk, hunk_hitbox)| match hunk {
693 DisplayDiffHunk::Folded { .. } => None,
694 DisplayDiffHunk::Unfolded {
695 multi_buffer_range, ..
696 } => hunk_hitbox
697 .as_ref()
698 .is_some_and(|hitbox| hitbox.is_hovered(window))
699 .then(|| multi_buffer_range.clone()),
700 })
701 {
702 editor.toggle_single_diff_hunk(hovered_hunk, cx);
703 cx.notify();
704 return;
705 } else if gutter_hitbox.is_hovered(window) {
706 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
707 } else if !text_hitbox.is_hovered(window) {
708 return;
709 }
710
711 if EditorSettings::get_global(cx)
712 .drag_and_drop_selection
713 .enabled
714 && click_count == 1
715 && !modifiers.shift
716 {
717 let newest_anchor = editor.selections.newest_anchor();
718 let snapshot = editor.snapshot(window, cx);
719 let selection = newest_anchor.map(|anchor| anchor.to_display_point(&snapshot));
720 if point_for_position.intersects_selection(&selection) {
721 editor.selection_drag_state = SelectionDragState::ReadyToDrag {
722 selection: newest_anchor.clone(),
723 click_position: event.position,
724 mouse_down_time: Instant::now(),
725 };
726 cx.stop_propagation();
727 return;
728 }
729 }
730
731 let is_singleton = editor.buffer().read(cx).is_singleton();
732
733 if click_count == 2 && !is_singleton {
734 match EditorSettings::get_global(cx).double_click_in_multibuffer {
735 DoubleClickInMultibuffer::Select => {
736 // do nothing special on double click, all selection logic is below
737 }
738 DoubleClickInMultibuffer::Open => {
739 if modifiers.alt {
740 // if double click is made with alt, pretend it's a regular double click without opening and alt,
741 // and run the selection logic.
742 modifiers.alt = false;
743 } else {
744 let scroll_position_row = position_map.scroll_position.y;
745 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
746 / position_map.line_height)
747 as f64
748 + position_map.scroll_position.y)
749 as u32;
750 let multi_buffer_row = position_map
751 .snapshot
752 .display_point_to_point(
753 DisplayPoint::new(DisplayRow(display_row), 0),
754 Bias::Right,
755 )
756 .row;
757 let line_offset_from_top = display_row - scroll_position_row as u32;
758 // if double click is made without alt, open the corresponding excerp
759 editor.open_excerpts_common(
760 Some(JumpData::MultiBufferRow {
761 row: MultiBufferRow(multi_buffer_row),
762 line_offset_from_top,
763 }),
764 false,
765 window,
766 cx,
767 );
768 return;
769 }
770 }
771 }
772 }
773
774 if !is_singleton {
775 let display_row = (ScrollPixelOffset::from(
776 (event.position - gutter_hitbox.bounds.origin).y / position_map.line_height,
777 ) + position_map.scroll_position.y) as u32;
778 let multi_buffer_row = position_map
779 .snapshot
780 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
781 .row;
782 if line_numbers
783 .get(&MultiBufferRow(multi_buffer_row))
784 .is_some_and(|line_layout| {
785 line_layout.segments.iter().any(|segment| {
786 segment
787 .hitbox
788 .as_ref()
789 .is_some_and(|hitbox| hitbox.contains(&event.position))
790 })
791 })
792 {
793 let line_offset_from_top = display_row - position_map.scroll_position.y as u32;
794
795 editor.open_excerpts_common(
796 Some(JumpData::MultiBufferRow {
797 row: MultiBufferRow(multi_buffer_row),
798 line_offset_from_top,
799 }),
800 modifiers.alt,
801 window,
802 cx,
803 );
804 cx.stop_propagation();
805 return;
806 }
807 }
808
809 let position = point_for_position.previous_valid;
810 if let Some(mode) = Editor::columnar_selection_mode(&modifiers, cx) {
811 editor.select(
812 SelectPhase::BeginColumnar {
813 position,
814 reset: match mode {
815 ColumnarMode::FromMouse => true,
816 ColumnarMode::FromSelection => false,
817 },
818 mode,
819 goal_column: point_for_position.exact_unclipped.column(),
820 },
821 window,
822 cx,
823 );
824 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
825 {
826 editor.select(
827 SelectPhase::Extend {
828 position,
829 click_count,
830 },
831 window,
832 cx,
833 );
834 } else {
835 editor.select(
836 SelectPhase::Begin {
837 position,
838 add: Editor::is_alt_pressed(&modifiers, cx),
839 click_count,
840 },
841 window,
842 cx,
843 );
844 }
845 cx.stop_propagation();
846 }
847
848 fn mouse_right_down(
849 editor: &mut Editor,
850 event: &MouseDownEvent,
851 position_map: &PositionMap,
852 window: &mut Window,
853 cx: &mut Context<Editor>,
854 ) {
855 if position_map.gutter_hitbox.is_hovered(window) {
856 let gutter_right_padding = editor.gutter_dimensions.right_padding;
857 let hitbox = &position_map.gutter_hitbox;
858
859 if event.position.x <= hitbox.bounds.right() - gutter_right_padding {
860 let point_for_position = position_map.point_for_position(event.position);
861 editor.set_breakpoint_context_menu(
862 point_for_position.previous_valid.row(),
863 None,
864 event.position,
865 window,
866 cx,
867 );
868 }
869 return;
870 }
871
872 if !position_map.text_hitbox.is_hovered(window) {
873 return;
874 }
875
876 let point_for_position = position_map.point_for_position(event.position);
877 mouse_context_menu::deploy_context_menu(
878 editor,
879 Some(event.position),
880 point_for_position.previous_valid,
881 window,
882 cx,
883 );
884 cx.stop_propagation();
885 }
886
887 fn mouse_middle_down(
888 editor: &mut Editor,
889 event: &MouseDownEvent,
890 position_map: &PositionMap,
891 window: &mut Window,
892 cx: &mut Context<Editor>,
893 ) {
894 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
895 return;
896 }
897
898 let point_for_position = position_map.point_for_position(event.position);
899 let position = point_for_position.previous_valid;
900
901 editor.select(
902 SelectPhase::BeginColumnar {
903 position,
904 reset: true,
905 mode: ColumnarMode::FromMouse,
906 goal_column: point_for_position.exact_unclipped.column(),
907 },
908 window,
909 cx,
910 );
911 }
912
913 fn mouse_up(
914 editor: &mut Editor,
915 event: &MouseUpEvent,
916 position_map: &PositionMap,
917 window: &mut Window,
918 cx: &mut Context<Editor>,
919 ) {
920 let text_hitbox = &position_map.text_hitbox;
921 let end_selection = editor.has_pending_selection();
922 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
923 let point_for_position = position_map.point_for_position(event.position);
924
925 match editor.selection_drag_state {
926 SelectionDragState::ReadyToDrag {
927 selection: _,
928 ref click_position,
929 mouse_down_time: _,
930 } => {
931 if event.position == *click_position {
932 editor.select(
933 SelectPhase::Begin {
934 position: point_for_position.previous_valid,
935 add: false,
936 click_count: 1, // ready to drag state only occurs on click count 1
937 },
938 window,
939 cx,
940 );
941 editor.selection_drag_state = SelectionDragState::None;
942 cx.stop_propagation();
943 return;
944 } else {
945 debug_panic!("drag state can never be in ready state after drag")
946 }
947 }
948 SelectionDragState::Dragging { ref selection, .. } => {
949 let snapshot = editor.snapshot(window, cx);
950 let selection_display = selection.map(|anchor| anchor.to_display_point(&snapshot));
951 if !point_for_position.intersects_selection(&selection_display)
952 && text_hitbox.is_hovered(window)
953 {
954 let is_cut = !(cfg!(target_os = "macos") && event.modifiers.alt
955 || cfg!(not(target_os = "macos")) && event.modifiers.control);
956 editor.move_selection_on_drop(
957 &selection.clone(),
958 point_for_position.previous_valid,
959 is_cut,
960 window,
961 cx,
962 );
963 }
964 editor.selection_drag_state = SelectionDragState::None;
965 cx.stop_propagation();
966 cx.notify();
967 return;
968 }
969 _ => {}
970 }
971
972 if end_selection {
973 editor.select(SelectPhase::End, window, cx);
974 }
975
976 if end_selection && pending_nonempty_selections {
977 cx.stop_propagation();
978 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
979 && event.button == MouseButton::Middle
980 {
981 #[allow(
982 clippy::collapsible_if,
983 clippy::needless_return,
984 reason = "The cfg-block below makes this a false positive"
985 )]
986 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
987 return;
988 }
989
990 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
991 if EditorSettings::get_global(cx).middle_click_paste {
992 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
993 let point_for_position = position_map.point_for_position(event.position);
994 let position = point_for_position.previous_valid;
995
996 editor.select(
997 SelectPhase::Begin {
998 position,
999 add: false,
1000 click_count: 1,
1001 },
1002 window,
1003 cx,
1004 );
1005 editor.insert(&text, window, cx);
1006 }
1007 cx.stop_propagation()
1008 }
1009 }
1010 }
1011
1012 fn click(
1013 editor: &mut Editor,
1014 event: &ClickEvent,
1015 position_map: &PositionMap,
1016 window: &mut Window,
1017 cx: &mut Context<Editor>,
1018 ) {
1019 let text_hitbox = &position_map.text_hitbox;
1020 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
1021
1022 let hovered_link_modifier = Editor::is_cmd_or_ctrl_pressed(&event.modifiers(), cx);
1023 let mouse_down_hovered_link_modifier = if let ClickEvent::Mouse(mouse_event) = event {
1024 Editor::is_cmd_or_ctrl_pressed(&mouse_event.down.modifiers, cx)
1025 } else {
1026 true
1027 };
1028
1029 if let Some(mouse_position) = event.mouse_position()
1030 && !pending_nonempty_selections
1031 && hovered_link_modifier
1032 && mouse_down_hovered_link_modifier
1033 && text_hitbox.is_hovered(window)
1034 && !matches!(
1035 editor.selection_drag_state,
1036 SelectionDragState::Dragging { .. }
1037 )
1038 {
1039 let point = position_map.point_for_position(mouse_position);
1040 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
1041 editor.selection_drag_state = SelectionDragState::None;
1042
1043 cx.stop_propagation();
1044 }
1045 }
1046
1047 fn pressure_click(
1048 editor: &mut Editor,
1049 event: &MousePressureEvent,
1050 position_map: &PositionMap,
1051 window: &mut Window,
1052 cx: &mut Context<Editor>,
1053 ) {
1054 let text_hitbox = &position_map.text_hitbox;
1055 let force_click_possible =
1056 matches!(editor.prev_pressure_stage, Some(PressureStage::Normal))
1057 && event.stage == PressureStage::Force;
1058
1059 editor.prev_pressure_stage = Some(event.stage);
1060
1061 if force_click_possible && text_hitbox.is_hovered(window) {
1062 let point = position_map.point_for_position(event.position);
1063 editor.handle_click_hovered_link(point, event.modifiers, window, cx);
1064 editor.selection_drag_state = SelectionDragState::None;
1065 cx.stop_propagation();
1066 }
1067 }
1068
1069 fn mouse_dragged(
1070 editor: &mut Editor,
1071 event: &MouseMoveEvent,
1072 position_map: &PositionMap,
1073 window: &mut Window,
1074 cx: &mut Context<Editor>,
1075 ) {
1076 if !editor.has_pending_selection()
1077 && matches!(editor.selection_drag_state, SelectionDragState::None)
1078 {
1079 return;
1080 }
1081
1082 let point_for_position = position_map.point_for_position(event.position);
1083 let text_hitbox = &position_map.text_hitbox;
1084
1085 let scroll_delta = {
1086 let text_bounds = text_hitbox.bounds;
1087 let mut scroll_delta = gpui::Point::<f32>::default();
1088 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
1089 let top = text_bounds.origin.y + vertical_margin;
1090 let bottom = text_bounds.bottom_left().y - vertical_margin;
1091 if event.position.y < top {
1092 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
1093 }
1094 if event.position.y > bottom {
1095 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
1096 }
1097
1098 // We need horizontal width of text
1099 let style = editor.style.clone().unwrap_or_default();
1100 let font_id = window.text_system().resolve_font(&style.text.font());
1101 let font_size = style.text.font_size.to_pixels(window.rem_size());
1102 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
1103
1104 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
1105
1106 let scroll_space: Pixels = scroll_margin_x * em_width;
1107
1108 let left = text_bounds.origin.x + scroll_space;
1109 let right = text_bounds.top_right().x - scroll_space;
1110
1111 if event.position.x < left {
1112 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
1113 }
1114 if event.position.x > right {
1115 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
1116 }
1117 scroll_delta
1118 };
1119
1120 if !editor.has_pending_selection() {
1121 let drop_anchor = position_map
1122 .snapshot
1123 .display_point_to_anchor(point_for_position.previous_valid, Bias::Left);
1124 match editor.selection_drag_state {
1125 SelectionDragState::Dragging {
1126 ref mut drop_cursor,
1127 ref mut hide_drop_cursor,
1128 ..
1129 } => {
1130 drop_cursor.start = drop_anchor;
1131 drop_cursor.end = drop_anchor;
1132 *hide_drop_cursor = !text_hitbox.is_hovered(window);
1133 editor.apply_scroll_delta(scroll_delta, window, cx);
1134 cx.notify();
1135 }
1136 SelectionDragState::ReadyToDrag {
1137 ref selection,
1138 ref click_position,
1139 ref mouse_down_time,
1140 } => {
1141 let drag_and_drop_delay = Duration::from_millis(
1142 EditorSettings::get_global(cx)
1143 .drag_and_drop_selection
1144 .delay
1145 .0,
1146 );
1147 if mouse_down_time.elapsed() >= drag_and_drop_delay {
1148 let drop_cursor = Selection {
1149 id: post_inc(&mut editor.selections.next_selection_id()),
1150 start: drop_anchor,
1151 end: drop_anchor,
1152 reversed: false,
1153 goal: SelectionGoal::None,
1154 };
1155 editor.selection_drag_state = SelectionDragState::Dragging {
1156 selection: selection.clone(),
1157 drop_cursor,
1158 hide_drop_cursor: false,
1159 };
1160 editor.apply_scroll_delta(scroll_delta, window, cx);
1161 cx.notify();
1162 } else {
1163 let click_point = position_map.point_for_position(*click_position);
1164 editor.selection_drag_state = SelectionDragState::None;
1165 editor.select(
1166 SelectPhase::Begin {
1167 position: click_point.previous_valid,
1168 add: false,
1169 click_count: 1,
1170 },
1171 window,
1172 cx,
1173 );
1174 editor.select(
1175 SelectPhase::Update {
1176 position: point_for_position.previous_valid,
1177 goal_column: point_for_position.exact_unclipped.column(),
1178 scroll_delta,
1179 },
1180 window,
1181 cx,
1182 );
1183 }
1184 }
1185 _ => {}
1186 }
1187 } else {
1188 editor.select(
1189 SelectPhase::Update {
1190 position: point_for_position.previous_valid,
1191 goal_column: point_for_position.exact_unclipped.column(),
1192 scroll_delta,
1193 },
1194 window,
1195 cx,
1196 );
1197 }
1198 }
1199
1200 pub(crate) fn mouse_moved(
1201 editor: &mut Editor,
1202 event: &MouseMoveEvent,
1203 position_map: &PositionMap,
1204 window: &mut Window,
1205 cx: &mut Context<Editor>,
1206 ) {
1207 let text_hitbox = &position_map.text_hitbox;
1208 let gutter_hitbox = &position_map.gutter_hitbox;
1209 let modifiers = event.modifiers;
1210 let text_hovered = text_hitbox.is_hovered(window);
1211 let gutter_hovered = gutter_hitbox.bounds.contains(&event.position);
1212 editor.set_gutter_hovered(gutter_hovered, cx);
1213 editor.show_mouse_cursor(cx);
1214
1215 let point_for_position = position_map.point_for_position(event.position);
1216 let valid_point = point_for_position.previous_valid;
1217
1218 let hovered_diff_control = position_map
1219 .diff_hunk_control_bounds
1220 .iter()
1221 .find(|(_, bounds)| bounds.contains(&event.position))
1222 .map(|(row, _)| *row);
1223
1224 let hovered_diff_hunk_row = if let Some(control_row) = hovered_diff_control {
1225 Some(control_row)
1226 } else if text_hovered {
1227 let current_row = valid_point.row();
1228 position_map.display_hunks.iter().find_map(|(hunk, _)| {
1229 if let DisplayDiffHunk::Unfolded {
1230 display_row_range, ..
1231 } = hunk
1232 {
1233 if display_row_range.contains(¤t_row) {
1234 Some(display_row_range.start)
1235 } else {
1236 None
1237 }
1238 } else {
1239 None
1240 }
1241 })
1242 } else {
1243 None
1244 };
1245
1246 if hovered_diff_hunk_row != editor.hovered_diff_hunk_row {
1247 editor.hovered_diff_hunk_row = hovered_diff_hunk_row;
1248 cx.notify();
1249 }
1250
1251 if let Some((bounds, buffer_id, blame_entry)) = &position_map.inline_blame_bounds {
1252 let mouse_over_inline_blame = bounds.contains(&event.position);
1253 let mouse_over_popover = editor
1254 .inline_blame_popover
1255 .as_ref()
1256 .and_then(|state| state.popover_bounds)
1257 .is_some_and(|bounds| bounds.contains(&event.position));
1258 let keyboard_grace = editor
1259 .inline_blame_popover
1260 .as_ref()
1261 .is_some_and(|state| state.keyboard_grace);
1262
1263 if mouse_over_inline_blame || mouse_over_popover {
1264 editor.show_blame_popover(*buffer_id, blame_entry, event.position, false, cx);
1265 } else if !keyboard_grace {
1266 editor.hide_blame_popover(false, cx);
1267 }
1268 } else {
1269 let keyboard_grace = editor
1270 .inline_blame_popover
1271 .as_ref()
1272 .is_some_and(|state| state.keyboard_grace);
1273 if !keyboard_grace {
1274 editor.hide_blame_popover(false, cx);
1275 }
1276 }
1277
1278 // Handle diff review indicator when gutter is hovered in diff mode with AI enabled
1279 let show_diff_review = editor.show_diff_review_button()
1280 && cx.has_flag::<DiffReviewFeatureFlag>()
1281 && !DisableAiSettings::get_global(cx).disable_ai;
1282
1283 let diff_review_indicator = if gutter_hovered && show_diff_review {
1284 let is_visible = editor
1285 .gutter_diff_review_indicator
1286 .0
1287 .is_some_and(|indicator| indicator.is_active);
1288
1289 if !is_visible {
1290 editor
1291 .gutter_diff_review_indicator
1292 .1
1293 .get_or_insert_with(|| {
1294 cx.spawn(async move |this, cx| {
1295 cx.background_executor()
1296 .timer(Duration::from_millis(200))
1297 .await;
1298
1299 this.update(cx, |this, cx| {
1300 if let Some(indicator) =
1301 this.gutter_diff_review_indicator.0.as_mut()
1302 {
1303 indicator.is_active = true;
1304 cx.notify();
1305 }
1306 })
1307 .ok();
1308 })
1309 });
1310 }
1311
1312 Some(PhantomDiffReviewIndicator {
1313 display_row: valid_point.row(),
1314 is_active: is_visible,
1315 })
1316 } else {
1317 editor.gutter_diff_review_indicator.1 = None;
1318 None
1319 };
1320
1321 if diff_review_indicator != editor.gutter_diff_review_indicator.0 {
1322 editor.gutter_diff_review_indicator.0 = diff_review_indicator;
1323 cx.notify();
1324 }
1325
1326 // Don't show breakpoint indicator when diff review indicator is active on this row
1327 let is_on_diff_review_button_row = diff_review_indicator.is_some_and(|indicator| {
1328 indicator.is_active && indicator.display_row == valid_point.row()
1329 });
1330
1331 let breakpoint_indicator = if gutter_hovered && !is_on_diff_review_button_row {
1332 let buffer_anchor = position_map
1333 .snapshot
1334 .display_point_to_anchor(valid_point, Bias::Left);
1335
1336 if let Some((buffer_snapshot, file)) = position_map
1337 .snapshot
1338 .buffer_snapshot()
1339 .buffer_for_excerpt(buffer_anchor.excerpt_id)
1340 .and_then(|buffer| buffer.file().map(|file| (buffer, file)))
1341 {
1342 let as_point = text::ToPoint::to_point(&buffer_anchor.text_anchor, buffer_snapshot);
1343
1344 let is_visible = editor
1345 .gutter_breakpoint_indicator
1346 .0
1347 .is_some_and(|indicator| indicator.is_active);
1348
1349 let has_existing_breakpoint =
1350 editor.breakpoint_store.as_ref().is_some_and(|store| {
1351 let Some(project) = &editor.project else {
1352 return false;
1353 };
1354 let Some(abs_path) = project.read(cx).absolute_path(
1355 &ProjectPath {
1356 path: file.path().clone(),
1357 worktree_id: file.worktree_id(cx),
1358 },
1359 cx,
1360 ) else {
1361 return false;
1362 };
1363 store
1364 .read(cx)
1365 .breakpoint_at_row(&abs_path, as_point.row, cx)
1366 .is_some()
1367 });
1368
1369 if !is_visible {
1370 editor.gutter_breakpoint_indicator.1.get_or_insert_with(|| {
1371 cx.spawn(async move |this, cx| {
1372 cx.background_executor()
1373 .timer(Duration::from_millis(200))
1374 .await;
1375
1376 this.update(cx, |this, cx| {
1377 if let Some(indicator) = this.gutter_breakpoint_indicator.0.as_mut()
1378 {
1379 indicator.is_active = true;
1380 cx.notify();
1381 }
1382 })
1383 .ok();
1384 })
1385 });
1386 }
1387
1388 Some(PhantomBreakpointIndicator {
1389 display_row: valid_point.row(),
1390 is_active: is_visible,
1391 collides_with_existing_breakpoint: has_existing_breakpoint,
1392 })
1393 } else {
1394 editor.gutter_breakpoint_indicator.1 = None;
1395 None
1396 }
1397 } else {
1398 editor.gutter_breakpoint_indicator.1 = None;
1399 None
1400 };
1401
1402 if &breakpoint_indicator != &editor.gutter_breakpoint_indicator.0 {
1403 editor.gutter_breakpoint_indicator.0 = breakpoint_indicator;
1404 cx.notify();
1405 }
1406
1407 // Don't trigger hover popover if mouse is hovering over context menu
1408 if text_hovered {
1409 editor.update_hovered_link(
1410 point_for_position,
1411 &position_map.snapshot,
1412 modifiers,
1413 window,
1414 cx,
1415 );
1416
1417 if let Some(point) = point_for_position.as_valid() {
1418 let anchor = position_map
1419 .snapshot
1420 .buffer_snapshot()
1421 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
1422 hover_at(editor, Some(anchor), window, cx);
1423 Self::update_visible_cursor(editor, point, position_map, window, cx);
1424 } else {
1425 editor.update_inlay_link_and_hover_points(
1426 &position_map.snapshot,
1427 point_for_position,
1428 modifiers.secondary(),
1429 modifiers.shift,
1430 window,
1431 cx,
1432 );
1433 }
1434 } else {
1435 editor.hide_hovered_link(cx);
1436 hover_at(editor, None, window, cx);
1437 }
1438 }
1439
1440 fn update_visible_cursor(
1441 editor: &mut Editor,
1442 point: DisplayPoint,
1443 position_map: &PositionMap,
1444 window: &mut Window,
1445 cx: &mut Context<Editor>,
1446 ) {
1447 let snapshot = &position_map.snapshot;
1448 let Some(hub) = editor.collaboration_hub() else {
1449 return;
1450 };
1451 let start = snapshot.display_snapshot.clip_point(
1452 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
1453 Bias::Left,
1454 );
1455 let end = snapshot.display_snapshot.clip_point(
1456 DisplayPoint::new(
1457 point.row(),
1458 (point.column() + 1).min(snapshot.line_len(point.row())),
1459 ),
1460 Bias::Right,
1461 );
1462
1463 let range = snapshot
1464 .buffer_snapshot()
1465 .anchor_before(start.to_point(&snapshot.display_snapshot))
1466 ..snapshot
1467 .buffer_snapshot()
1468 .anchor_after(end.to_point(&snapshot.display_snapshot));
1469
1470 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
1471 return;
1472 };
1473 let key = crate::HoveredCursor {
1474 replica_id: selection.replica_id,
1475 selection_id: selection.selection.id,
1476 };
1477 editor.hovered_cursors.insert(
1478 key.clone(),
1479 cx.spawn_in(window, async move |editor, cx| {
1480 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
1481 editor
1482 .update(cx, |editor, cx| {
1483 editor.hovered_cursors.remove(&key);
1484 cx.notify();
1485 })
1486 .ok();
1487 }),
1488 );
1489 cx.notify()
1490 }
1491
1492 fn layout_selections(
1493 &self,
1494 start_anchor: Anchor,
1495 end_anchor: Anchor,
1496 local_selections: &[Selection<Point>],
1497 snapshot: &EditorSnapshot,
1498 start_row: DisplayRow,
1499 end_row: DisplayRow,
1500 window: &mut Window,
1501 cx: &mut App,
1502 ) -> (
1503 Vec<(PlayerColor, Vec<SelectionLayout>)>,
1504 BTreeMap<DisplayRow, LineHighlightSpec>,
1505 Option<DisplayPoint>,
1506 ) {
1507 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1508 let mut active_rows = BTreeMap::new();
1509 let mut newest_selection_head = None;
1510
1511 let Some(editor_with_selections) = self.editor_with_selections(cx) else {
1512 return (selections, active_rows, newest_selection_head);
1513 };
1514
1515 editor_with_selections.update(cx, |editor, cx| {
1516 if editor.show_local_selections {
1517 let mut layouts = Vec::new();
1518 let newest = editor.selections.newest(&editor.display_snapshot(cx));
1519 for selection in local_selections.iter().cloned() {
1520 let is_empty = selection.start == selection.end;
1521 let is_newest = selection == newest;
1522
1523 let layout = SelectionLayout::new(
1524 selection,
1525 editor.selections.line_mode(),
1526 editor.cursor_offset_on_selection,
1527 editor.cursor_shape,
1528 &snapshot.display_snapshot,
1529 is_newest,
1530 editor.leader_id.is_none(),
1531 None,
1532 );
1533 if is_newest {
1534 newest_selection_head = Some(layout.head);
1535 }
1536
1537 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1538 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1539 {
1540 let contains_non_empty_selection = active_rows
1541 .entry(DisplayRow(row))
1542 .or_insert_with(LineHighlightSpec::default);
1543 contains_non_empty_selection.selection |= !is_empty;
1544 }
1545 layouts.push(layout);
1546 }
1547
1548 let mut player = editor.current_user_player_color(cx);
1549 if !editor.is_focused(window) {
1550 const UNFOCUS_EDITOR_SELECTION_OPACITY: f32 = 0.5;
1551 player.selection = player.selection.opacity(UNFOCUS_EDITOR_SELECTION_OPACITY);
1552 }
1553 selections.push((player, layouts));
1554
1555 if let SelectionDragState::Dragging {
1556 ref selection,
1557 ref drop_cursor,
1558 ref hide_drop_cursor,
1559 } = editor.selection_drag_state
1560 && !hide_drop_cursor
1561 && (drop_cursor
1562 .start
1563 .cmp(&selection.start, &snapshot.buffer_snapshot())
1564 .eq(&Ordering::Less)
1565 || drop_cursor
1566 .end
1567 .cmp(&selection.end, &snapshot.buffer_snapshot())
1568 .eq(&Ordering::Greater))
1569 {
1570 let drag_cursor_layout = SelectionLayout::new(
1571 drop_cursor.clone(),
1572 false,
1573 editor.cursor_offset_on_selection,
1574 CursorShape::Bar,
1575 &snapshot.display_snapshot,
1576 false,
1577 false,
1578 None,
1579 );
1580 let absent_color = cx.theme().players().absent();
1581 selections.push((absent_color, vec![drag_cursor_layout]));
1582 }
1583 }
1584
1585 if let Some(collaboration_hub) = &editor.collaboration_hub {
1586 // When following someone, render the local selections in their color.
1587 if let Some(leader_id) = editor.leader_id {
1588 match leader_id {
1589 CollaboratorId::PeerId(peer_id) => {
1590 if let Some(collaborator) =
1591 collaboration_hub.collaborators(cx).get(&peer_id)
1592 && let Some(participant_index) = collaboration_hub
1593 .user_participant_indices(cx)
1594 .get(&collaborator.user_id)
1595 && let Some((local_selection_style, _)) = selections.first_mut()
1596 {
1597 *local_selection_style = cx
1598 .theme()
1599 .players()
1600 .color_for_participant(participant_index.0);
1601 }
1602 }
1603 CollaboratorId::Agent => {
1604 if let Some((local_selection_style, _)) = selections.first_mut() {
1605 *local_selection_style = cx.theme().players().agent();
1606 }
1607 }
1608 }
1609 }
1610
1611 let mut remote_selections = HashMap::default();
1612 for selection in snapshot.remote_selections_in_range(
1613 &(start_anchor..end_anchor),
1614 collaboration_hub.as_ref(),
1615 cx,
1616 ) {
1617 // Don't re-render the leader's selections, since the local selections
1618 // match theirs.
1619 if Some(selection.collaborator_id) == editor.leader_id {
1620 continue;
1621 }
1622 let key = HoveredCursor {
1623 replica_id: selection.replica_id,
1624 selection_id: selection.selection.id,
1625 };
1626
1627 let is_shown =
1628 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1629
1630 remote_selections
1631 .entry(selection.replica_id)
1632 .or_insert((selection.color, Vec::new()))
1633 .1
1634 .push(SelectionLayout::new(
1635 selection.selection,
1636 selection.line_mode,
1637 editor.cursor_offset_on_selection,
1638 selection.cursor_shape,
1639 &snapshot.display_snapshot,
1640 false,
1641 false,
1642 if is_shown { selection.user_name } else { None },
1643 ));
1644 }
1645
1646 selections.extend(remote_selections.into_values());
1647 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1648 let cursor_offset_on_selection = editor.cursor_offset_on_selection;
1649
1650 let layouts = snapshot
1651 .buffer_snapshot()
1652 .selections_in_range(&(start_anchor..end_anchor), true)
1653 .map(move |(_, line_mode, cursor_shape, selection)| {
1654 SelectionLayout::new(
1655 selection,
1656 line_mode,
1657 cursor_offset_on_selection,
1658 cursor_shape,
1659 &snapshot.display_snapshot,
1660 false,
1661 false,
1662 None,
1663 )
1664 })
1665 .collect::<Vec<_>>();
1666 let player = editor.current_user_player_color(cx);
1667 selections.push((player, layouts));
1668 }
1669 });
1670
1671 #[cfg(debug_assertions)]
1672 Self::layout_debug_ranges(
1673 &mut selections,
1674 start_anchor..end_anchor,
1675 &snapshot.display_snapshot,
1676 cx,
1677 );
1678
1679 (selections, active_rows, newest_selection_head)
1680 }
1681
1682 fn collect_cursors(
1683 &self,
1684 snapshot: &EditorSnapshot,
1685 cx: &mut App,
1686 ) -> Vec<(DisplayPoint, Hsla)> {
1687 let editor = self.editor.read(cx);
1688 let mut cursors = Vec::new();
1689 let mut skip_local = false;
1690 let mut add_cursor = |anchor: Anchor, color| {
1691 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1692 };
1693 // Remote cursors
1694 if let Some(collaboration_hub) = &editor.collaboration_hub {
1695 for remote_selection in snapshot.remote_selections_in_range(
1696 &(Anchor::min()..Anchor::max()),
1697 collaboration_hub.deref(),
1698 cx,
1699 ) {
1700 add_cursor(
1701 remote_selection.selection.head(),
1702 remote_selection.color.cursor,
1703 );
1704 if Some(remote_selection.collaborator_id) == editor.leader_id {
1705 skip_local = true;
1706 }
1707 }
1708 }
1709 // Local cursors
1710 if !skip_local {
1711 let color = cx.theme().players().local().cursor;
1712 editor
1713 .selections
1714 .disjoint_anchors()
1715 .iter()
1716 .for_each(|selection| {
1717 add_cursor(selection.head(), color);
1718 });
1719 if let Some(ref selection) = editor.selections.pending_anchor() {
1720 add_cursor(selection.head(), color);
1721 }
1722 }
1723 cursors
1724 }
1725
1726 fn layout_visible_cursors(
1727 &self,
1728 snapshot: &EditorSnapshot,
1729 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1730 row_block_types: &HashMap<DisplayRow, bool>,
1731 visible_display_row_range: Range<DisplayRow>,
1732 line_layouts: &[LineWithInvisibles],
1733 text_hitbox: &Hitbox,
1734 content_origin: gpui::Point<Pixels>,
1735 scroll_position: gpui::Point<ScrollOffset>,
1736 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
1737 line_height: Pixels,
1738 em_width: Pixels,
1739 em_advance: Pixels,
1740 autoscroll_containing_element: bool,
1741 window: &mut Window,
1742 cx: &mut App,
1743 ) -> Vec<CursorLayout> {
1744 let mut autoscroll_bounds = None;
1745 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1746 let mut cursors = Vec::new();
1747
1748 let show_local_cursors = editor.show_local_cursors(window, cx);
1749
1750 for (player_color, selections) in selections {
1751 for selection in selections {
1752 let cursor_position = selection.head;
1753
1754 let in_range = visible_display_row_range.contains(&cursor_position.row());
1755 if (selection.is_local && !show_local_cursors)
1756 || !in_range
1757 || row_block_types.get(&cursor_position.row()) == Some(&true)
1758 {
1759 continue;
1760 }
1761
1762 let cursor_row_layout = &line_layouts
1763 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1764 let cursor_column = cursor_position.column() as usize;
1765
1766 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column)
1767 + cursor_row_layout
1768 .alignment_offset(self.style.text.text_align, text_hitbox.size.width);
1769 let cursor_next_x = cursor_row_layout.x_for_index(cursor_column + 1)
1770 + cursor_row_layout
1771 .alignment_offset(self.style.text.text_align, text_hitbox.size.width);
1772 let mut block_width = cursor_next_x - cursor_character_x;
1773 if block_width == Pixels::ZERO {
1774 block_width = em_advance;
1775 }
1776 let block_text = if let CursorShape::Block = selection.cursor_shape {
1777 snapshot
1778 .grapheme_at(cursor_position)
1779 .or_else(|| {
1780 if snapshot.is_empty() {
1781 snapshot.placeholder_text().and_then(|s| {
1782 s.graphemes(true).next().map(|s| s.to_string().into())
1783 })
1784 } else {
1785 None
1786 }
1787 })
1788 .map(|text| {
1789 let len = text.len();
1790
1791 let mut font = cursor_row_layout
1792 .font_id_for_index(cursor_column)
1793 .and_then(|cursor_font_id| {
1794 window.text_system().get_font_for_id(cursor_font_id)
1795 })
1796 .unwrap_or(self.style.text.font());
1797 font.features = self.style.text.font_features.clone();
1798
1799 // Invert the text color for the block cursor. Ensure that the text
1800 // color is opaque enough to be visible against the background color.
1801 //
1802 // 0.75 is an arbitrary threshold to determine if the background color is
1803 // opaque enough to use as a text color.
1804 //
1805 // TODO: In the future we should ensure themes have a `text_inverse` color.
1806 let color = if cx.theme().colors().editor_background.a < 0.75 {
1807 match cx.theme().appearance {
1808 Appearance::Dark => Hsla::black(),
1809 Appearance::Light => Hsla::white(),
1810 }
1811 } else {
1812 cx.theme().colors().editor_background
1813 };
1814
1815 window.text_system().shape_line(
1816 text,
1817 cursor_row_layout.font_size,
1818 &[TextRun {
1819 len,
1820 font,
1821 color,
1822 ..Default::default()
1823 }],
1824 None,
1825 )
1826 })
1827 } else {
1828 None
1829 };
1830
1831 let x = cursor_character_x - scroll_pixel_position.x.into();
1832 let y = ((cursor_position.row().as_f64() - scroll_position.y)
1833 * ScrollPixelOffset::from(line_height))
1834 .into();
1835 if selection.is_newest {
1836 editor.pixel_position_of_newest_cursor = Some(point(
1837 text_hitbox.origin.x + x + block_width / 2.,
1838 text_hitbox.origin.y + y + line_height / 2.,
1839 ));
1840
1841 if autoscroll_containing_element {
1842 let top = text_hitbox.origin.y
1843 + ((cursor_position.row().as_f64() - scroll_position.y - 3.)
1844 .max(0.)
1845 * ScrollPixelOffset::from(line_height))
1846 .into();
1847 let left = text_hitbox.origin.x
1848 + ((cursor_position.column() as ScrollOffset
1849 - scroll_position.x
1850 - 3.)
1851 .max(0.)
1852 * ScrollPixelOffset::from(em_width))
1853 .into();
1854
1855 let bottom = text_hitbox.origin.y
1856 + ((cursor_position.row().as_f64() - scroll_position.y + 4.)
1857 * ScrollPixelOffset::from(line_height))
1858 .into();
1859 let right = text_hitbox.origin.x
1860 + ((cursor_position.column() as ScrollOffset - scroll_position.x
1861 + 4.)
1862 * ScrollPixelOffset::from(em_width))
1863 .into();
1864
1865 autoscroll_bounds =
1866 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1867 }
1868 }
1869
1870 let mut cursor = CursorLayout {
1871 color: player_color.cursor,
1872 block_width,
1873 origin: point(x, y),
1874 line_height,
1875 shape: selection.cursor_shape,
1876 block_text,
1877 cursor_name: None,
1878 };
1879 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1880 string: name,
1881 color: self.style.background,
1882 is_top_row: cursor_position.row().0 == 0,
1883 });
1884 cursor.layout(content_origin, cursor_name, window, cx);
1885 cursors.push(cursor);
1886 }
1887 }
1888
1889 cursors
1890 });
1891
1892 if let Some(bounds) = autoscroll_bounds {
1893 window.request_autoscroll(bounds);
1894 }
1895
1896 cursor_layouts
1897 }
1898
1899 fn layout_scrollbars(
1900 &self,
1901 snapshot: &EditorSnapshot,
1902 scrollbar_layout_information: &ScrollbarLayoutInformation,
1903 content_offset: gpui::Point<Pixels>,
1904 scroll_position: gpui::Point<ScrollOffset>,
1905 non_visible_cursors: bool,
1906 right_margin: Pixels,
1907 editor_width: Pixels,
1908 window: &mut Window,
1909 cx: &mut App,
1910 ) -> Option<EditorScrollbars> {
1911 let show_scrollbars = self.editor.read(cx).show_scrollbars;
1912 if (!show_scrollbars.horizontal && !show_scrollbars.vertical)
1913 || self.style.scrollbar_width.is_zero()
1914 {
1915 return None;
1916 }
1917
1918 // If a drag took place after we started dragging the scrollbar,
1919 // cancel the scrollbar drag.
1920 if cx.has_active_drag() {
1921 self.editor.update(cx, |editor, cx| {
1922 editor.scroll_manager.reset_scrollbar_state(cx)
1923 });
1924 }
1925
1926 let editor_settings = EditorSettings::get_global(cx);
1927 let scrollbar_settings = editor_settings.scrollbar;
1928 let show_scrollbars = match scrollbar_settings.show {
1929 ShowScrollbar::Auto => {
1930 let editor = self.editor.read(cx);
1931 let is_singleton = editor.buffer_kind(cx) == ItemBufferKind::Singleton;
1932 // Git
1933 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot().has_diff_hunks())
1934 ||
1935 // Buffer Search Results
1936 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1937 ||
1938 // Selected Text Occurrences
1939 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1940 ||
1941 // Selected Symbol Occurrences
1942 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1943 ||
1944 // Diagnostics
1945 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot().has_diagnostics())
1946 ||
1947 // Cursors out of sight
1948 non_visible_cursors
1949 ||
1950 // Scrollmanager
1951 editor.scroll_manager.scrollbars_visible()
1952 }
1953 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1954 ShowScrollbar::Always => true,
1955 ShowScrollbar::Never => return None,
1956 };
1957
1958 // The horizontal scrollbar is usually slightly offset to align nicely with
1959 // indent guides. However, this offset is not needed if indent guides are
1960 // disabled for the current editor.
1961 let content_offset = self
1962 .editor
1963 .read(cx)
1964 .show_indent_guides
1965 .is_none_or(|should_show| should_show)
1966 .then_some(content_offset)
1967 .unwrap_or_default();
1968
1969 Some(EditorScrollbars::from_scrollbar_axes(
1970 ScrollbarAxes {
1971 horizontal: scrollbar_settings.axes.horizontal
1972 && self.editor.read(cx).show_scrollbars.horizontal,
1973 vertical: scrollbar_settings.axes.vertical
1974 && self.editor.read(cx).show_scrollbars.vertical,
1975 },
1976 scrollbar_layout_information,
1977 content_offset,
1978 scroll_position,
1979 self.style.scrollbar_width,
1980 right_margin,
1981 editor_width,
1982 show_scrollbars,
1983 self.editor.read(cx).scroll_manager.active_scrollbar_state(),
1984 window,
1985 ))
1986 }
1987
1988 fn layout_minimap(
1989 &self,
1990 snapshot: &EditorSnapshot,
1991 minimap_width: Pixels,
1992 scroll_position: gpui::Point<f64>,
1993 scrollbar_layout_information: &ScrollbarLayoutInformation,
1994 scrollbar_layout: Option<&EditorScrollbars>,
1995 window: &mut Window,
1996 cx: &mut App,
1997 ) -> Option<MinimapLayout> {
1998 let minimap_editor = self.editor.read(cx).minimap().cloned()?;
1999
2000 let minimap_settings = EditorSettings::get_global(cx).minimap;
2001
2002 if minimap_settings.on_active_editor() {
2003 let active_editor = self.editor.read(cx).workspace().and_then(|ws| {
2004 ws.read(cx)
2005 .active_pane()
2006 .read(cx)
2007 .active_item()
2008 .and_then(|i| i.act_as::<Editor>(cx))
2009 });
2010 if active_editor.is_some_and(|e| e != self.editor) {
2011 return None;
2012 }
2013 }
2014
2015 if !snapshot.mode.is_full()
2016 || minimap_width.is_zero()
2017 || matches!(
2018 minimap_settings.show,
2019 ShowMinimap::Auto if scrollbar_layout.is_none_or(|layout| !layout.visible)
2020 )
2021 {
2022 return None;
2023 }
2024
2025 const MINIMAP_AXIS: ScrollbarAxis = ScrollbarAxis::Vertical;
2026
2027 let ScrollbarLayoutInformation {
2028 editor_bounds,
2029 scroll_range,
2030 glyph_grid_cell,
2031 } = scrollbar_layout_information;
2032
2033 let line_height = glyph_grid_cell.height;
2034 let scroll_position = scroll_position.along(MINIMAP_AXIS);
2035
2036 let top_right_anchor = scrollbar_layout
2037 .and_then(|layout| layout.vertical.as_ref())
2038 .map(|vertical_scrollbar| vertical_scrollbar.hitbox.origin)
2039 .unwrap_or_else(|| editor_bounds.top_right());
2040
2041 let thumb_state = self
2042 .editor
2043 .read_with(cx, |editor, _| editor.scroll_manager.minimap_thumb_state());
2044
2045 let show_thumb = match minimap_settings.thumb {
2046 MinimapThumb::Always => true,
2047 MinimapThumb::Hover => thumb_state.is_some(),
2048 };
2049
2050 let minimap_bounds = Bounds::from_corner_and_size(
2051 Corner::TopRight,
2052 top_right_anchor,
2053 size(minimap_width, editor_bounds.size.height),
2054 );
2055 let minimap_line_height = self.get_minimap_line_height(
2056 minimap_editor
2057 .read(cx)
2058 .text_style_refinement
2059 .as_ref()
2060 .and_then(|refinement| refinement.font_size)
2061 .unwrap_or(MINIMAP_FONT_SIZE),
2062 window,
2063 cx,
2064 );
2065 let minimap_height = minimap_bounds.size.height;
2066
2067 let visible_editor_lines = (editor_bounds.size.height / line_height) as f64;
2068 let total_editor_lines = (scroll_range.height / line_height) as f64;
2069 let minimap_lines = (minimap_height / minimap_line_height) as f64;
2070
2071 let minimap_scroll_top = MinimapLayout::calculate_minimap_top_offset(
2072 total_editor_lines,
2073 visible_editor_lines,
2074 minimap_lines,
2075 scroll_position,
2076 );
2077
2078 let layout = ScrollbarLayout::for_minimap(
2079 window.insert_hitbox(minimap_bounds, HitboxBehavior::Normal),
2080 visible_editor_lines,
2081 total_editor_lines,
2082 minimap_line_height,
2083 scroll_position,
2084 minimap_scroll_top,
2085 show_thumb,
2086 )
2087 .with_thumb_state(thumb_state);
2088
2089 minimap_editor.update(cx, |editor, cx| {
2090 editor.set_scroll_position(point(0., minimap_scroll_top), window, cx)
2091 });
2092
2093 // Required for the drop shadow to be visible
2094 const PADDING_OFFSET: Pixels = px(4.);
2095
2096 let mut minimap = div()
2097 .size_full()
2098 .shadow_xs()
2099 .px(PADDING_OFFSET)
2100 .child(minimap_editor)
2101 .into_any_element();
2102
2103 let extended_bounds = minimap_bounds.extend(Edges {
2104 right: PADDING_OFFSET,
2105 left: PADDING_OFFSET,
2106 ..Default::default()
2107 });
2108 minimap.layout_as_root(extended_bounds.size.into(), window, cx);
2109 window.with_absolute_element_offset(extended_bounds.origin, |window| {
2110 minimap.prepaint(window, cx)
2111 });
2112
2113 Some(MinimapLayout {
2114 minimap,
2115 thumb_layout: layout,
2116 thumb_border_style: minimap_settings.thumb_border,
2117 minimap_line_height,
2118 minimap_scroll_top,
2119 max_scroll_top: total_editor_lines,
2120 })
2121 }
2122
2123 fn get_minimap_line_height(
2124 &self,
2125 font_size: AbsoluteLength,
2126 window: &mut Window,
2127 cx: &mut App,
2128 ) -> Pixels {
2129 let rem_size = self.rem_size(cx).unwrap_or(window.rem_size());
2130 let mut text_style = self.style.text.clone();
2131 text_style.font_size = font_size;
2132 text_style.line_height_in_pixels(rem_size)
2133 }
2134
2135 fn get_minimap_width(
2136 &self,
2137 minimap_settings: &Minimap,
2138 scrollbars_shown: bool,
2139 text_width: Pixels,
2140 em_width: Pixels,
2141 font_size: Pixels,
2142 rem_size: Pixels,
2143 cx: &App,
2144 ) -> Option<Pixels> {
2145 if minimap_settings.show == ShowMinimap::Auto && !scrollbars_shown {
2146 return None;
2147 }
2148
2149 let minimap_font_size = self.editor.read_with(cx, |editor, cx| {
2150 editor.minimap().map(|minimap_editor| {
2151 minimap_editor
2152 .read(cx)
2153 .text_style_refinement
2154 .as_ref()
2155 .and_then(|refinement| refinement.font_size)
2156 .unwrap_or(MINIMAP_FONT_SIZE)
2157 })
2158 })?;
2159
2160 let minimap_em_width = em_width * (minimap_font_size.to_pixels(rem_size) / font_size);
2161
2162 let minimap_width = (text_width * MinimapLayout::MINIMAP_WIDTH_PCT)
2163 .min(minimap_em_width * minimap_settings.max_width_columns.get() as f32);
2164
2165 (minimap_width >= minimap_em_width * MinimapLayout::MINIMAP_MIN_WIDTH_COLUMNS)
2166 .then_some(minimap_width)
2167 }
2168
2169 fn prepaint_crease_toggles(
2170 &self,
2171 crease_toggles: &mut [Option<AnyElement>],
2172 line_height: Pixels,
2173 gutter_dimensions: &GutterDimensions,
2174 gutter_settings: crate::editor_settings::Gutter,
2175 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2176 gutter_hitbox: &Hitbox,
2177 window: &mut Window,
2178 cx: &mut App,
2179 ) {
2180 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
2181 if let Some(crease_toggle) = crease_toggle {
2182 debug_assert!(gutter_settings.folds);
2183 let available_space = size(
2184 AvailableSpace::MinContent,
2185 AvailableSpace::Definite(line_height * 0.55),
2186 );
2187 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
2188
2189 let position = point(
2190 gutter_dimensions.width - gutter_dimensions.right_padding,
2191 ix as f32 * line_height
2192 - (scroll_pixel_position.y % ScrollPixelOffset::from(line_height)).into(),
2193 );
2194 let centering_offset = point(
2195 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
2196 (line_height - crease_toggle_size.height) / 2.,
2197 );
2198 let origin = gutter_hitbox.origin + position + centering_offset;
2199 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
2200 }
2201 }
2202 }
2203
2204 fn prepaint_expand_toggles(
2205 &self,
2206 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
2207 window: &mut Window,
2208 cx: &mut App,
2209 ) {
2210 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
2211 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
2212 expand_toggle.layout_as_root(available_space, window, cx);
2213 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
2214 }
2215 }
2216
2217 fn prepaint_crease_trailers(
2218 &self,
2219 trailers: Vec<Option<AnyElement>>,
2220 lines: &[LineWithInvisibles],
2221 line_height: Pixels,
2222 content_origin: gpui::Point<Pixels>,
2223 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2224 em_width: Pixels,
2225 window: &mut Window,
2226 cx: &mut App,
2227 ) -> Vec<Option<CreaseTrailerLayout>> {
2228 trailers
2229 .into_iter()
2230 .enumerate()
2231 .map(|(ix, element)| {
2232 let mut element = element?;
2233 let available_space = size(
2234 AvailableSpace::MinContent,
2235 AvailableSpace::Definite(line_height),
2236 );
2237 let size = element.layout_as_root(available_space, window, cx);
2238
2239 let line = &lines[ix];
2240 let padding = if line.width == Pixels::ZERO {
2241 Pixels::ZERO
2242 } else {
2243 4. * em_width
2244 };
2245 let position = point(
2246 Pixels::from(scroll_pixel_position.x) + line.width + padding,
2247 ix as f32 * line_height
2248 - (scroll_pixel_position.y % ScrollPixelOffset::from(line_height)).into(),
2249 );
2250 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
2251 let origin = content_origin + position + centering_offset;
2252 element.prepaint_as_root(origin, available_space, window, cx);
2253 Some(CreaseTrailerLayout {
2254 element,
2255 bounds: Bounds::new(origin, size),
2256 })
2257 })
2258 .collect()
2259 }
2260
2261 // Folds contained in a hunk are ignored apart from shrinking visual size
2262 // If a fold contains any hunks then that fold line is marked as modified
2263 fn layout_gutter_diff_hunks(
2264 &self,
2265 line_height: Pixels,
2266 gutter_hitbox: &Hitbox,
2267 display_rows: Range<DisplayRow>,
2268 snapshot: &EditorSnapshot,
2269 window: &mut Window,
2270 cx: &mut App,
2271 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
2272 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
2273 let mut display_hunks = snapshot
2274 .display_diff_hunks_for_rows(display_rows, folded_buffers)
2275 .map(|hunk| (hunk, None))
2276 .collect::<Vec<_>>();
2277 let git_gutter_setting = ProjectSettings::get_global(cx).git.git_gutter;
2278 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
2279 for (hunk, hitbox) in &mut display_hunks {
2280 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
2281 let hunk_bounds =
2282 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
2283 *hitbox = Some(window.insert_hitbox(hunk_bounds, HitboxBehavior::BlockMouse));
2284 }
2285 }
2286 }
2287
2288 display_hunks
2289 }
2290
2291 fn layout_inline_diagnostics(
2292 &self,
2293 line_layouts: &[LineWithInvisibles],
2294 crease_trailers: &[Option<CreaseTrailerLayout>],
2295 row_block_types: &HashMap<DisplayRow, bool>,
2296 content_origin: gpui::Point<Pixels>,
2297 scroll_position: gpui::Point<ScrollOffset>,
2298 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2299 edit_prediction_popover_origin: Option<gpui::Point<Pixels>>,
2300 start_row: DisplayRow,
2301 end_row: DisplayRow,
2302 line_height: Pixels,
2303 em_width: Pixels,
2304 style: &EditorStyle,
2305 window: &mut Window,
2306 cx: &mut App,
2307 ) -> HashMap<DisplayRow, AnyElement> {
2308 let max_severity = match self
2309 .editor
2310 .read(cx)
2311 .inline_diagnostics_enabled()
2312 .then(|| {
2313 ProjectSettings::get_global(cx)
2314 .diagnostics
2315 .inline
2316 .max_severity
2317 .unwrap_or_else(|| self.editor.read(cx).diagnostics_max_severity)
2318 .into_lsp()
2319 })
2320 .flatten()
2321 {
2322 Some(max_severity) => max_severity,
2323 None => return HashMap::default(),
2324 };
2325
2326 let active_diagnostics_group =
2327 if let ActiveDiagnostic::Group(group) = &self.editor.read(cx).active_diagnostics {
2328 Some(group.group_id)
2329 } else {
2330 None
2331 };
2332
2333 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
2334 let snapshot = editor.snapshot(window, cx);
2335 editor
2336 .inline_diagnostics
2337 .iter()
2338 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
2339 .filter(|(_, diagnostic)| match active_diagnostics_group {
2340 Some(active_diagnostics_group) => {
2341 // Active diagnostics are all shown in the editor already, no need to display them inline
2342 diagnostic.group_id != active_diagnostics_group
2343 }
2344 None => true,
2345 })
2346 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
2347 .skip_while(|(point, _)| point.row() < start_row)
2348 .take_while(|(point, _)| point.row() < end_row)
2349 .filter(|(point, _)| !row_block_types.contains_key(&point.row()))
2350 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
2351 acc.entry(point.row())
2352 .or_insert_with(Vec::new)
2353 .push(diagnostic);
2354 acc
2355 })
2356 });
2357
2358 if diagnostics_by_rows.is_empty() {
2359 return HashMap::default();
2360 }
2361
2362 let severity_to_color = |sev: &lsp::DiagnosticSeverity| match sev {
2363 &lsp::DiagnosticSeverity::ERROR => Color::Error,
2364 &lsp::DiagnosticSeverity::WARNING => Color::Warning,
2365 &lsp::DiagnosticSeverity::INFORMATION => Color::Info,
2366 &lsp::DiagnosticSeverity::HINT => Color::Hint,
2367 _ => Color::Error,
2368 };
2369
2370 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
2371 let min_x = column_pixels(
2372 &self.style,
2373 ProjectSettings::get_global(cx)
2374 .diagnostics
2375 .inline
2376 .min_column as usize,
2377 window,
2378 );
2379
2380 let mut elements = HashMap::default();
2381 for (row, mut diagnostics) in diagnostics_by_rows {
2382 diagnostics.sort_by_key(|diagnostic| {
2383 (
2384 diagnostic.severity,
2385 std::cmp::Reverse(diagnostic.is_primary),
2386 diagnostic.start.row,
2387 diagnostic.start.column,
2388 )
2389 });
2390
2391 let Some(diagnostic_to_render) = diagnostics
2392 .iter()
2393 .find(|diagnostic| diagnostic.is_primary)
2394 .or_else(|| diagnostics.first())
2395 else {
2396 continue;
2397 };
2398
2399 let pos_y = content_origin.y + line_height * (row.0 as f64 - scroll_position.y) as f32;
2400
2401 let window_ix = row.0.saturating_sub(start_row.0) as usize;
2402 let pos_x = {
2403 let crease_trailer_layout = &crease_trailers[window_ix];
2404 let line_layout = &line_layouts[window_ix];
2405
2406 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
2407 crease_trailer.bounds.right()
2408 } else {
2409 Pixels::from(
2410 ScrollPixelOffset::from(content_origin.x + line_layout.width)
2411 - scroll_pixel_position.x,
2412 )
2413 };
2414
2415 let padded_line = line_end + padding;
2416 let min_start = Pixels::from(
2417 ScrollPixelOffset::from(content_origin.x + min_x) - scroll_pixel_position.x,
2418 );
2419
2420 cmp::max(padded_line, min_start)
2421 };
2422
2423 let behind_edit_prediction_popover = edit_prediction_popover_origin
2424 .as_ref()
2425 .is_some_and(|edit_prediction_popover_origin| {
2426 (pos_y..pos_y + line_height).contains(&edit_prediction_popover_origin.y)
2427 });
2428 let opacity = if behind_edit_prediction_popover {
2429 0.5
2430 } else {
2431 1.0
2432 };
2433
2434 let mut element = h_flex()
2435 .id(("diagnostic", row.0))
2436 .h(line_height)
2437 .w_full()
2438 .px_1()
2439 .rounded_xs()
2440 .opacity(opacity)
2441 .bg(severity_to_color(&diagnostic_to_render.severity)
2442 .color(cx)
2443 .opacity(0.05))
2444 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
2445 .text_sm()
2446 .font(style.text.font())
2447 .child(diagnostic_to_render.message.clone())
2448 .into_any();
2449
2450 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
2451
2452 elements.insert(row, element);
2453 }
2454
2455 elements
2456 }
2457
2458 fn layout_inline_code_actions(
2459 &self,
2460 display_point: DisplayPoint,
2461 content_origin: gpui::Point<Pixels>,
2462 scroll_position: gpui::Point<ScrollOffset>,
2463 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2464 line_height: Pixels,
2465 snapshot: &EditorSnapshot,
2466 window: &mut Window,
2467 cx: &mut App,
2468 ) -> Option<AnyElement> {
2469 if !snapshot
2470 .show_code_actions
2471 .unwrap_or(EditorSettings::get_global(cx).inline_code_actions)
2472 {
2473 return None;
2474 }
2475
2476 let icon_size = ui::IconSize::XSmall;
2477 let mut button = self.editor.update(cx, |editor, cx| {
2478 editor.available_code_actions.as_ref()?;
2479 let active = editor
2480 .context_menu
2481 .borrow()
2482 .as_ref()
2483 .and_then(|menu| {
2484 if let crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2485 deployed_from,
2486 ..
2487 }) = menu
2488 {
2489 deployed_from.as_ref()
2490 } else {
2491 None
2492 }
2493 })
2494 .is_some_and(|source| matches!(source, CodeActionSource::Indicator(..)));
2495 Some(editor.render_inline_code_actions(icon_size, display_point.row(), active, cx))
2496 })?;
2497
2498 let buffer_point = display_point.to_point(&snapshot.display_snapshot);
2499
2500 // do not show code action for folded line
2501 if snapshot.is_line_folded(MultiBufferRow(buffer_point.row)) {
2502 return None;
2503 }
2504
2505 // do not show code action for blank line with cursor
2506 let line_indent = snapshot
2507 .display_snapshot
2508 .buffer_snapshot()
2509 .line_indent_for_row(MultiBufferRow(buffer_point.row));
2510 if line_indent.is_line_blank() {
2511 return None;
2512 }
2513
2514 const INLINE_SLOT_CHAR_LIMIT: u32 = 4;
2515 const MAX_ALTERNATE_DISTANCE: u32 = 8;
2516
2517 let excerpt_id = snapshot
2518 .display_snapshot
2519 .buffer_snapshot()
2520 .excerpt_containing(buffer_point..buffer_point)
2521 .map(|excerpt| excerpt.id());
2522
2523 let is_valid_row = |row_candidate: u32| -> bool {
2524 // move to other row if folded row
2525 if snapshot.is_line_folded(MultiBufferRow(row_candidate)) {
2526 return false;
2527 }
2528 if buffer_point.row == row_candidate {
2529 // move to other row if cursor is in slot
2530 if buffer_point.column < INLINE_SLOT_CHAR_LIMIT {
2531 return false;
2532 }
2533 } else {
2534 let candidate_point = MultiBufferPoint {
2535 row: row_candidate,
2536 column: 0,
2537 };
2538 let candidate_excerpt_id = snapshot
2539 .display_snapshot
2540 .buffer_snapshot()
2541 .excerpt_containing(candidate_point..candidate_point)
2542 .map(|excerpt| excerpt.id());
2543 // move to other row if different excerpt
2544 if excerpt_id != candidate_excerpt_id {
2545 return false;
2546 }
2547 }
2548 let line_indent = snapshot
2549 .display_snapshot
2550 .buffer_snapshot()
2551 .line_indent_for_row(MultiBufferRow(row_candidate));
2552 // use this row if it's blank
2553 if line_indent.is_line_blank() {
2554 true
2555 } else {
2556 // use this row if code starts after slot
2557 let indent_size = snapshot
2558 .display_snapshot
2559 .buffer_snapshot()
2560 .indent_size_for_line(MultiBufferRow(row_candidate));
2561 indent_size.len >= INLINE_SLOT_CHAR_LIMIT
2562 }
2563 };
2564
2565 let new_buffer_row = if is_valid_row(buffer_point.row) {
2566 Some(buffer_point.row)
2567 } else {
2568 let max_row = snapshot.display_snapshot.buffer_snapshot().max_point().row;
2569 (1..=MAX_ALTERNATE_DISTANCE).find_map(|offset| {
2570 let row_above = buffer_point.row.saturating_sub(offset);
2571 let row_below = buffer_point.row + offset;
2572 if row_above != buffer_point.row && is_valid_row(row_above) {
2573 Some(row_above)
2574 } else if row_below <= max_row && is_valid_row(row_below) {
2575 Some(row_below)
2576 } else {
2577 None
2578 }
2579 })
2580 }?;
2581
2582 let new_display_row = snapshot
2583 .display_snapshot
2584 .point_to_display_point(
2585 Point {
2586 row: new_buffer_row,
2587 column: buffer_point.column,
2588 },
2589 text::Bias::Left,
2590 )
2591 .row();
2592
2593 let start_y = content_origin.y
2594 + (((new_display_row.as_f64() - scroll_position.y) as f32) * line_height)
2595 + (line_height / 2.0)
2596 - (icon_size.square(window, cx) / 2.);
2597 let start_x = (ScrollPixelOffset::from(content_origin.x) - scroll_pixel_position.x
2598 + ScrollPixelOffset::from(window.rem_size() * 0.1))
2599 .into();
2600
2601 let absolute_offset = gpui::point(start_x, start_y);
2602 button.layout_as_root(gpui::AvailableSpace::min_size(), window, cx);
2603 button.prepaint_as_root(
2604 absolute_offset,
2605 gpui::AvailableSpace::min_size(),
2606 window,
2607 cx,
2608 );
2609 Some(button)
2610 }
2611
2612 fn layout_inline_blame(
2613 &self,
2614 display_row: DisplayRow,
2615 row_info: &RowInfo,
2616 line_layout: &LineWithInvisibles,
2617 crease_trailer: Option<&CreaseTrailerLayout>,
2618 em_width: Pixels,
2619 content_origin: gpui::Point<Pixels>,
2620 scroll_position: gpui::Point<ScrollOffset>,
2621 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2622 line_height: Pixels,
2623 window: &mut Window,
2624 cx: &mut App,
2625 ) -> Option<InlineBlameLayout> {
2626 if !self
2627 .editor
2628 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
2629 {
2630 return None;
2631 }
2632
2633 let editor = self.editor.read(cx);
2634 let blame = editor.blame.clone()?;
2635 let padding = {
2636 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
2637
2638 let mut padding = ProjectSettings::get_global(cx).git.inline_blame.padding as f32;
2639
2640 if let Some(edit_prediction) = editor.active_edit_prediction.as_ref()
2641 && let EditPrediction::Edit {
2642 display_mode: EditDisplayMode::TabAccept,
2643 ..
2644 } = &edit_prediction.completion
2645 {
2646 padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS
2647 }
2648
2649 padding * em_width
2650 };
2651
2652 let (buffer_id, entry) = blame
2653 .update(cx, |blame, cx| {
2654 blame.blame_for_rows(&[*row_info], cx).next()
2655 })
2656 .flatten()?;
2657
2658 let mut element = render_inline_blame_entry(entry.clone(), &self.style, cx)?;
2659
2660 let start_y =
2661 content_origin.y + line_height * ((display_row.as_f64() - scroll_position.y) as f32);
2662
2663 let start_x = {
2664 let line_end = if let Some(crease_trailer) = crease_trailer {
2665 crease_trailer.bounds.right()
2666 } else {
2667 Pixels::from(
2668 ScrollPixelOffset::from(content_origin.x + line_layout.width)
2669 - scroll_pixel_position.x,
2670 )
2671 };
2672
2673 let padded_line_end = line_end + padding;
2674
2675 let min_column_in_pixels = column_pixels(
2676 &self.style,
2677 ProjectSettings::get_global(cx).git.inline_blame.min_column as usize,
2678 window,
2679 );
2680 let min_start = Pixels::from(
2681 ScrollPixelOffset::from(content_origin.x + min_column_in_pixels)
2682 - scroll_pixel_position.x,
2683 );
2684
2685 cmp::max(padded_line_end, min_start)
2686 };
2687
2688 let absolute_offset = point(start_x, start_y);
2689 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2690 let bounds = Bounds::new(absolute_offset, size);
2691
2692 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
2693
2694 Some(InlineBlameLayout {
2695 element,
2696 bounds,
2697 buffer_id,
2698 entry,
2699 })
2700 }
2701
2702 fn layout_blame_popover(
2703 &self,
2704 editor_snapshot: &EditorSnapshot,
2705 text_hitbox: &Hitbox,
2706 line_height: Pixels,
2707 window: &mut Window,
2708 cx: &mut App,
2709 ) {
2710 if !self.editor.read(cx).inline_blame_popover.is_some() {
2711 return;
2712 }
2713
2714 let Some(blame) = self.editor.read(cx).blame.clone() else {
2715 return;
2716 };
2717 let cursor_point = self
2718 .editor
2719 .read(cx)
2720 .selections
2721 .newest::<language::Point>(&editor_snapshot.display_snapshot)
2722 .head();
2723
2724 let Some((buffer, buffer_point, _)) = editor_snapshot
2725 .buffer_snapshot()
2726 .point_to_buffer_point(cursor_point)
2727 else {
2728 return;
2729 };
2730
2731 let row_info = RowInfo {
2732 buffer_id: Some(buffer.remote_id()),
2733 buffer_row: Some(buffer_point.row),
2734 ..Default::default()
2735 };
2736
2737 let Some((buffer_id, blame_entry)) = blame
2738 .update(cx, |blame, cx| blame.blame_for_rows(&[row_info], cx).next())
2739 .flatten()
2740 else {
2741 return;
2742 };
2743
2744 let Some((popover_state, target_point)) = self.editor.read_with(cx, |editor, _| {
2745 editor
2746 .inline_blame_popover
2747 .as_ref()
2748 .map(|state| (state.popover_state.clone(), state.position))
2749 }) else {
2750 return;
2751 };
2752
2753 let workspace = self
2754 .editor
2755 .read_with(cx, |editor, _| editor.workspace().map(|w| w.downgrade()));
2756
2757 let maybe_element = workspace.and_then(|workspace| {
2758 render_blame_entry_popover(
2759 blame_entry,
2760 popover_state.scroll_handle,
2761 popover_state.commit_message,
2762 popover_state.markdown,
2763 workspace,
2764 &blame,
2765 buffer_id,
2766 window,
2767 cx,
2768 )
2769 });
2770
2771 if let Some(mut element) = maybe_element {
2772 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2773 let overall_height = size.height + HOVER_POPOVER_GAP;
2774 let popover_origin = if target_point.y > overall_height {
2775 point(target_point.x, target_point.y - size.height)
2776 } else {
2777 point(
2778 target_point.x,
2779 target_point.y + line_height + HOVER_POPOVER_GAP,
2780 )
2781 };
2782
2783 let horizontal_offset = (text_hitbox.top_right().x
2784 - POPOVER_RIGHT_OFFSET
2785 - (popover_origin.x + size.width))
2786 .min(Pixels::ZERO);
2787
2788 let origin = point(popover_origin.x + horizontal_offset, popover_origin.y);
2789 let popover_bounds = Bounds::new(origin, size);
2790
2791 self.editor.update(cx, |editor, _| {
2792 if let Some(state) = &mut editor.inline_blame_popover {
2793 state.popover_bounds = Some(popover_bounds);
2794 }
2795 });
2796
2797 window.defer_draw(element, origin, 2);
2798 }
2799 }
2800
2801 fn layout_blame_entries(
2802 &self,
2803 buffer_rows: &[RowInfo],
2804 em_width: Pixels,
2805 scroll_position: gpui::Point<ScrollOffset>,
2806 line_height: Pixels,
2807 gutter_hitbox: &Hitbox,
2808 max_width: Option<Pixels>,
2809 window: &mut Window,
2810 cx: &mut App,
2811 ) -> Option<Vec<AnyElement>> {
2812 if !self
2813 .editor
2814 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
2815 {
2816 return None;
2817 }
2818
2819 let blame = self.editor.read(cx).blame.clone()?;
2820 let workspace = self.editor.read(cx).workspace()?;
2821 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
2822 blame.blame_for_rows(buffer_rows, cx).collect()
2823 });
2824
2825 let width = if let Some(max_width) = max_width {
2826 AvailableSpace::Definite(max_width)
2827 } else {
2828 AvailableSpace::MaxContent
2829 };
2830 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
2831 let start_x = em_width;
2832
2833 let mut last_used_color: Option<(Hsla, Oid)> = None;
2834 let blame_renderer = cx.global::<GlobalBlameRenderer>().0.clone();
2835
2836 let shaped_lines = blamed_rows
2837 .into_iter()
2838 .enumerate()
2839 .flat_map(|(ix, blame_entry)| {
2840 let (buffer_id, blame_entry) = blame_entry?;
2841 let mut element = render_blame_entry(
2842 ix,
2843 &blame,
2844 blame_entry,
2845 &self.style,
2846 &mut last_used_color,
2847 self.editor.clone(),
2848 workspace.clone(),
2849 buffer_id,
2850 &*blame_renderer,
2851 window,
2852 cx,
2853 )?;
2854
2855 let start_y = ix as f32 * line_height
2856 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height));
2857 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
2858
2859 element.prepaint_as_root(
2860 absolute_offset,
2861 size(width, AvailableSpace::MinContent),
2862 window,
2863 cx,
2864 );
2865
2866 Some(element)
2867 })
2868 .collect();
2869
2870 Some(shaped_lines)
2871 }
2872
2873 fn layout_indent_guides(
2874 &self,
2875 content_origin: gpui::Point<Pixels>,
2876 text_origin: gpui::Point<Pixels>,
2877 visible_buffer_range: Range<MultiBufferRow>,
2878 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2879 line_height: Pixels,
2880 snapshot: &DisplaySnapshot,
2881 window: &mut Window,
2882 cx: &mut App,
2883 ) -> Option<Vec<IndentGuideLayout>> {
2884 let indent_guides = self.editor.update(cx, |editor, cx| {
2885 editor.indent_guides(visible_buffer_range, snapshot, cx)
2886 })?;
2887
2888 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
2889 editor
2890 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
2891 .unwrap_or_default()
2892 });
2893
2894 Some(
2895 indent_guides
2896 .into_iter()
2897 .enumerate()
2898 .filter_map(|(i, indent_guide)| {
2899 let single_indent_width =
2900 column_pixels(&self.style, indent_guide.tab_size as usize, window);
2901 let total_width = single_indent_width * indent_guide.depth as f32;
2902 let start_x = Pixels::from(
2903 ScrollOffset::from(content_origin.x + total_width)
2904 - scroll_pixel_position.x,
2905 );
2906 if start_x >= text_origin.x {
2907 let (offset_y, length) = Self::calculate_indent_guide_bounds(
2908 indent_guide.start_row..indent_guide.end_row,
2909 line_height,
2910 snapshot,
2911 );
2912
2913 let start_y = Pixels::from(
2914 ScrollOffset::from(content_origin.y) + offset_y
2915 - scroll_pixel_position.y,
2916 );
2917
2918 Some(IndentGuideLayout {
2919 origin: point(start_x, start_y),
2920 length,
2921 single_indent_width,
2922 depth: indent_guide.depth,
2923 active: active_indent_guide_indices.contains(&i),
2924 settings: indent_guide.settings,
2925 })
2926 } else {
2927 None
2928 }
2929 })
2930 .collect(),
2931 )
2932 }
2933
2934 fn layout_wrap_guides(
2935 &self,
2936 em_advance: Pixels,
2937 scroll_position: gpui::Point<f64>,
2938 content_origin: gpui::Point<Pixels>,
2939 scrollbar_layout: Option<&EditorScrollbars>,
2940 vertical_scrollbar_width: Pixels,
2941 hitbox: &Hitbox,
2942 window: &Window,
2943 cx: &App,
2944 ) -> SmallVec<[(Pixels, bool); 2]> {
2945 let scroll_left = scroll_position.x as f32 * em_advance;
2946 let content_origin = content_origin.x;
2947 let horizontal_offset = content_origin - scroll_left;
2948 let vertical_scrollbar_width = scrollbar_layout
2949 .and_then(|layout| layout.visible.then_some(vertical_scrollbar_width))
2950 .unwrap_or_default();
2951
2952 self.editor
2953 .read(cx)
2954 .wrap_guides(cx)
2955 .into_iter()
2956 .flat_map(|(guide, active)| {
2957 let wrap_position = column_pixels(&self.style, guide, window);
2958 let wrap_guide_x = wrap_position + horizontal_offset;
2959 let display_wrap_guide = wrap_guide_x >= content_origin
2960 && wrap_guide_x <= hitbox.bounds.right() - vertical_scrollbar_width;
2961
2962 display_wrap_guide.then_some((wrap_guide_x, active))
2963 })
2964 .collect()
2965 }
2966
2967 fn calculate_indent_guide_bounds(
2968 row_range: Range<MultiBufferRow>,
2969 line_height: Pixels,
2970 snapshot: &DisplaySnapshot,
2971 ) -> (f64, gpui::Pixels) {
2972 let start_point = Point::new(row_range.start.0, 0);
2973 let end_point = Point::new(row_range.end.0, 0);
2974
2975 let row_range = start_point.to_display_point(snapshot).row()
2976 ..end_point.to_display_point(snapshot).row();
2977
2978 let mut prev_line = start_point;
2979 prev_line.row = prev_line.row.saturating_sub(1);
2980 let prev_line = prev_line.to_display_point(snapshot).row();
2981
2982 let mut cons_line = end_point;
2983 cons_line.row += 1;
2984 let cons_line = cons_line.to_display_point(snapshot).row();
2985
2986 let mut offset_y = row_range.start.as_f64() * f64::from(line_height);
2987 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
2988
2989 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
2990 if row_range.end == cons_line {
2991 length += line_height;
2992 }
2993
2994 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
2995 // we want to extend the indent guide to the start of the block.
2996 let mut block_height = 0;
2997 let mut block_offset = 0;
2998 let mut found_excerpt_header = false;
2999 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
3000 if matches!(
3001 block,
3002 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
3003 ) {
3004 found_excerpt_header = true;
3005 break;
3006 }
3007 block_offset += block.height();
3008 block_height += block.height();
3009 }
3010 if !found_excerpt_header {
3011 offset_y -= block_offset as f64 * f64::from(line_height);
3012 length += block_height as f32 * line_height;
3013 }
3014
3015 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
3016 // we want to ensure that the indent guide stops before the excerpt header.
3017 let mut block_height = 0;
3018 let mut found_excerpt_header = false;
3019 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
3020 if matches!(
3021 block,
3022 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
3023 ) {
3024 found_excerpt_header = true;
3025 }
3026 block_height += block.height();
3027 }
3028 if found_excerpt_header {
3029 length -= block_height as f32 * line_height;
3030 }
3031
3032 (offset_y, length)
3033 }
3034
3035 fn layout_breakpoints(
3036 &self,
3037 line_height: Pixels,
3038 range: Range<DisplayRow>,
3039 scroll_position: gpui::Point<ScrollOffset>,
3040 gutter_dimensions: &GutterDimensions,
3041 gutter_hitbox: &Hitbox,
3042 snapshot: &EditorSnapshot,
3043 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
3044 row_infos: &[RowInfo],
3045 window: &mut Window,
3046 cx: &mut App,
3047 ) -> Vec<AnyElement> {
3048 self.editor.update(cx, |editor, cx| {
3049 breakpoints
3050 .into_iter()
3051 .filter_map(|(display_row, (text_anchor, bp, state))| {
3052 if row_infos
3053 .get((display_row.0.saturating_sub(range.start.0)) as usize)
3054 .is_some_and(|row_info| {
3055 row_info.expand_info.is_some()
3056 || row_info
3057 .diff_status
3058 .is_some_and(|status| status.is_deleted())
3059 })
3060 {
3061 return None;
3062 }
3063
3064 if range.start > display_row || range.end < display_row {
3065 return None;
3066 }
3067
3068 let row =
3069 MultiBufferRow(DisplayPoint::new(display_row, 0).to_point(snapshot).row);
3070 if snapshot.is_line_folded(row) {
3071 return None;
3072 }
3073
3074 let button = editor.render_breakpoint(text_anchor, display_row, &bp, state, cx);
3075
3076 let button = prepaint_gutter_button(
3077 button.into_any_element(),
3078 display_row,
3079 line_height,
3080 gutter_dimensions,
3081 scroll_position,
3082 gutter_hitbox,
3083 window,
3084 cx,
3085 );
3086 Some(button)
3087 })
3088 .collect_vec()
3089 })
3090 }
3091
3092 fn should_render_diff_review_button(
3093 &self,
3094 range: Range<DisplayRow>,
3095 row_infos: &[RowInfo],
3096 cx: &App,
3097 ) -> Option<(DisplayRow, Option<u32>)> {
3098 if !cx.has_flag::<DiffReviewFeatureFlag>() {
3099 return None;
3100 }
3101
3102 let show_diff_review_button = self.editor.read(cx).show_diff_review_button();
3103 if !show_diff_review_button {
3104 return None;
3105 }
3106
3107 let indicator = self.editor.read(cx).gutter_diff_review_indicator.0?;
3108 if !indicator.is_active {
3109 return None;
3110 }
3111
3112 let display_row = indicator.display_row;
3113 let row_index = (display_row.0.saturating_sub(range.start.0)) as usize;
3114
3115 // Don't show on rows with expand excerpt buttons
3116 let row_info = row_infos.get(row_index);
3117 if row_info.is_some_and(|row_info| row_info.expand_info.is_some()) {
3118 return None;
3119 }
3120
3121 let buffer_row = row_info.and_then(|info| info.buffer_row);
3122 Some((display_row, buffer_row))
3123 }
3124
3125 #[allow(clippy::too_many_arguments)]
3126 fn layout_run_indicators(
3127 &self,
3128 line_height: Pixels,
3129 range: Range<DisplayRow>,
3130 row_infos: &[RowInfo],
3131 scroll_position: gpui::Point<ScrollOffset>,
3132 gutter_dimensions: &GutterDimensions,
3133 gutter_hitbox: &Hitbox,
3134 snapshot: &EditorSnapshot,
3135 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
3136 window: &mut Window,
3137 cx: &mut App,
3138 ) -> Vec<AnyElement> {
3139 self.editor.update(cx, |editor, cx| {
3140 let active_task_indicator_row =
3141 // TODO: add edit button on the right side of each row in the context menu
3142 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
3143 deployed_from,
3144 actions,
3145 ..
3146 })) = editor.context_menu.borrow().as_ref()
3147 {
3148 actions
3149 .tasks()
3150 .map(|tasks| tasks.position.to_display_point(snapshot).row())
3151 .or_else(|| match deployed_from {
3152 Some(CodeActionSource::Indicator(row)) => Some(*row),
3153 _ => None,
3154 })
3155 } else {
3156 None
3157 };
3158
3159 let offset_range_start =
3160 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
3161
3162 let offset_range_end =
3163 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
3164
3165 editor
3166 .tasks
3167 .iter()
3168 .filter_map(|(_, tasks)| {
3169 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot());
3170 if multibuffer_point < offset_range_start
3171 || multibuffer_point > offset_range_end
3172 {
3173 return None;
3174 }
3175 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
3176 let buffer_folded = snapshot
3177 .buffer_snapshot()
3178 .buffer_line_for_row(multibuffer_row)
3179 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
3180 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
3181 .unwrap_or(false);
3182 if buffer_folded {
3183 return None;
3184 }
3185
3186 if snapshot.is_line_folded(multibuffer_row) {
3187 // Skip folded indicators, unless it's the starting line of a fold.
3188 if multibuffer_row
3189 .0
3190 .checked_sub(1)
3191 .is_some_and(|previous_row| {
3192 snapshot.is_line_folded(MultiBufferRow(previous_row))
3193 })
3194 {
3195 return None;
3196 }
3197 }
3198
3199 let display_row = multibuffer_point.to_display_point(snapshot).row();
3200 if !range.contains(&display_row) {
3201 return None;
3202 }
3203 if row_infos
3204 .get((display_row - range.start).0 as usize)
3205 .is_some_and(|row_info| row_info.expand_info.is_some())
3206 {
3207 return None;
3208 }
3209
3210 let removed_breakpoint = breakpoints.remove(&display_row);
3211 let button = editor.render_run_indicator(
3212 &self.style,
3213 Some(display_row) == active_task_indicator_row,
3214 display_row,
3215 removed_breakpoint,
3216 cx,
3217 );
3218
3219 let button = prepaint_gutter_button(
3220 button.into_any_element(),
3221 display_row,
3222 line_height,
3223 gutter_dimensions,
3224 scroll_position,
3225 gutter_hitbox,
3226 window,
3227 cx,
3228 );
3229 Some(button)
3230 })
3231 .collect_vec()
3232 })
3233 }
3234
3235 fn layout_expand_toggles(
3236 &self,
3237 gutter_hitbox: &Hitbox,
3238 gutter_dimensions: GutterDimensions,
3239 em_width: Pixels,
3240 line_height: Pixels,
3241 scroll_position: gpui::Point<ScrollOffset>,
3242 buffer_rows: &[RowInfo],
3243 window: &mut Window,
3244 cx: &mut App,
3245 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
3246 if self.editor.read(cx).disable_expand_excerpt_buttons {
3247 return vec![];
3248 }
3249
3250 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
3251
3252 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
3253
3254 let max_line_number_length = self
3255 .editor
3256 .read(cx)
3257 .buffer()
3258 .read(cx)
3259 .snapshot(cx)
3260 .widest_line_number()
3261 .ilog10()
3262 + 1;
3263
3264 let git_gutter_width = Self::gutter_strip_width(line_height)
3265 + gutter_dimensions
3266 .git_blame_entries_width
3267 .unwrap_or_default();
3268 let available_width = gutter_dimensions.left_padding - git_gutter_width;
3269
3270 buffer_rows
3271 .iter()
3272 .enumerate()
3273 .map(|(ix, row_info)| {
3274 let ExpandInfo {
3275 excerpt_id,
3276 direction,
3277 } = row_info.expand_info?;
3278
3279 let icon_name = match direction {
3280 ExpandExcerptDirection::Up => IconName::ExpandUp,
3281 ExpandExcerptDirection::Down => IconName::ExpandDown,
3282 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
3283 };
3284
3285 let editor = self.editor.clone();
3286 let is_wide = max_line_number_length
3287 >= EditorSettings::get_global(cx).gutter.min_line_number_digits as u32
3288 && row_info
3289 .buffer_row
3290 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
3291 || gutter_dimensions.right_padding == px(0.);
3292
3293 let width = if is_wide {
3294 available_width - px(5.)
3295 } else {
3296 available_width + em_width - px(5.)
3297 };
3298
3299 let toggle = IconButton::new(("expand", ix), icon_name)
3300 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
3301 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
3302 .width(width)
3303 .on_click(move |_, window, cx| {
3304 editor.update(cx, |editor, cx| {
3305 editor.expand_excerpt(excerpt_id, direction, window, cx);
3306 });
3307 })
3308 .tooltip(Tooltip::for_action_title(
3309 "Expand Excerpt",
3310 &crate::actions::ExpandExcerpts::default(),
3311 ))
3312 .into_any_element();
3313
3314 let position = point(
3315 git_gutter_width + px(1.),
3316 ix as f32 * line_height
3317 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height))
3318 + px(1.),
3319 );
3320 let origin = gutter_hitbox.origin + position;
3321
3322 Some((toggle, origin))
3323 })
3324 .collect()
3325 }
3326
3327 fn layout_line_numbers(
3328 &self,
3329 gutter_hitbox: Option<&Hitbox>,
3330 gutter_dimensions: GutterDimensions,
3331 line_height: Pixels,
3332 scroll_position: gpui::Point<ScrollOffset>,
3333 rows: Range<DisplayRow>,
3334 buffer_rows: &[RowInfo],
3335 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3336 current_selection_head: Option<DisplayRow>,
3337 snapshot: &EditorSnapshot,
3338 window: &mut Window,
3339 cx: &mut App,
3340 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
3341 let include_line_numbers = snapshot
3342 .show_line_numbers
3343 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
3344 if !include_line_numbers {
3345 return Arc::default();
3346 }
3347
3348 let relative = self.editor.read(cx).relative_line_numbers(cx);
3349
3350 let relative_line_numbers_enabled = relative.enabled();
3351 let relative_rows = if relative_line_numbers_enabled
3352 && let Some(current_selection_head) = current_selection_head
3353 {
3354 snapshot.calculate_relative_line_numbers(
3355 &rows,
3356 current_selection_head,
3357 relative.wrapped(),
3358 )
3359 } else {
3360 Default::default()
3361 };
3362
3363 let mut line_number = String::new();
3364 let segments = buffer_rows.iter().enumerate().flat_map(|(ix, row_info)| {
3365 let display_row = DisplayRow(rows.start.0 + ix as u32);
3366 line_number.clear();
3367 let non_relative_number = if relative.wrapped() {
3368 row_info.buffer_row.or(row_info.wrapped_buffer_row)? + 1
3369 } else {
3370 row_info.buffer_row? + 1
3371 };
3372 let relative_number = relative_rows.get(&display_row);
3373 if !(relative_line_numbers_enabled && relative_number.is_some())
3374 && !snapshot.number_deleted_lines
3375 && row_info
3376 .diff_status
3377 .is_some_and(|status| status.is_deleted())
3378 {
3379 return None;
3380 }
3381
3382 let number = relative_number.unwrap_or(&non_relative_number);
3383 write!(&mut line_number, "{number}").unwrap();
3384
3385 let color = active_rows
3386 .get(&display_row)
3387 .map(|spec| {
3388 if spec.breakpoint {
3389 cx.theme().colors().debugger_accent
3390 } else {
3391 cx.theme().colors().editor_active_line_number
3392 }
3393 })
3394 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
3395 let shaped_line =
3396 self.shape_line_number(SharedString::from(&line_number), color, window);
3397 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
3398 let line_origin = gutter_hitbox.map(|hitbox| {
3399 hitbox.origin
3400 + point(
3401 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
3402 ix as f32 * line_height
3403 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height)),
3404 )
3405 });
3406
3407 #[cfg(not(test))]
3408 let hitbox = line_origin.map(|line_origin| {
3409 window.insert_hitbox(
3410 Bounds::new(line_origin, size(shaped_line.width, line_height)),
3411 HitboxBehavior::Normal,
3412 )
3413 });
3414 #[cfg(test)]
3415 let hitbox = {
3416 let _ = line_origin;
3417 None
3418 };
3419
3420 let segment = LineNumberSegment {
3421 shaped_line,
3422 hitbox,
3423 };
3424
3425 let buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
3426 let multi_buffer_row = MultiBufferRow(buffer_row);
3427
3428 Some((multi_buffer_row, segment))
3429 });
3430
3431 let mut line_numbers: HashMap<MultiBufferRow, LineNumberLayout> = HashMap::default();
3432 for (buffer_row, segment) in segments {
3433 line_numbers
3434 .entry(buffer_row)
3435 .or_insert_with(|| LineNumberLayout {
3436 segments: Default::default(),
3437 })
3438 .segments
3439 .push(segment);
3440 }
3441 Arc::new(line_numbers)
3442 }
3443
3444 fn layout_crease_toggles(
3445 &self,
3446 rows: Range<DisplayRow>,
3447 row_infos: &[RowInfo],
3448 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3449 snapshot: &EditorSnapshot,
3450 window: &mut Window,
3451 cx: &mut App,
3452 ) -> Vec<Option<AnyElement>> {
3453 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
3454 && snapshot.mode.is_full()
3455 && self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
3456 if include_fold_statuses {
3457 row_infos
3458 .iter()
3459 .enumerate()
3460 .map(|(ix, info)| {
3461 if info.expand_info.is_some() {
3462 return None;
3463 }
3464 let row = info.multibuffer_row?;
3465 let display_row = DisplayRow(rows.start.0 + ix as u32);
3466 let active = active_rows.contains_key(&display_row);
3467
3468 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
3469 })
3470 .collect()
3471 } else {
3472 Vec::new()
3473 }
3474 }
3475
3476 fn layout_crease_trailers(
3477 &self,
3478 buffer_rows: impl IntoIterator<Item = RowInfo>,
3479 snapshot: &EditorSnapshot,
3480 window: &mut Window,
3481 cx: &mut App,
3482 ) -> Vec<Option<AnyElement>> {
3483 buffer_rows
3484 .into_iter()
3485 .map(|row_info| {
3486 if row_info.expand_info.is_some() {
3487 return None;
3488 }
3489 if let Some(row) = row_info.multibuffer_row {
3490 snapshot.render_crease_trailer(row, window, cx)
3491 } else {
3492 None
3493 }
3494 })
3495 .collect()
3496 }
3497
3498 fn bg_segments_per_row(
3499 rows: Range<DisplayRow>,
3500 selections: &[(PlayerColor, Vec<SelectionLayout>)],
3501 highlight_ranges: &[(Range<DisplayPoint>, Hsla)],
3502 base_background: Hsla,
3503 ) -> Vec<Vec<(Range<DisplayPoint>, Hsla)>> {
3504 if rows.start >= rows.end {
3505 return Vec::new();
3506 }
3507 if !base_background.is_opaque() {
3508 // We don't actually know what color is behind this editor.
3509 return Vec::new();
3510 }
3511 let highlight_iter = highlight_ranges.iter().cloned();
3512 let selection_iter = selections.iter().flat_map(|(player_color, layouts)| {
3513 let color = player_color.selection;
3514 layouts.iter().filter_map(move |selection_layout| {
3515 if selection_layout.range.start != selection_layout.range.end {
3516 Some((selection_layout.range.clone(), color))
3517 } else {
3518 None
3519 }
3520 })
3521 });
3522 let mut per_row_map = vec![Vec::new(); rows.len()];
3523 for (range, color) in highlight_iter.chain(selection_iter) {
3524 let covered_rows = if range.end.column() == 0 {
3525 cmp::max(range.start.row(), rows.start)..cmp::min(range.end.row(), rows.end)
3526 } else {
3527 cmp::max(range.start.row(), rows.start)
3528 ..cmp::min(range.end.row().next_row(), rows.end)
3529 };
3530 for row in covered_rows.iter_rows() {
3531 let seg_start = if row == range.start.row() {
3532 range.start
3533 } else {
3534 DisplayPoint::new(row, 0)
3535 };
3536 let seg_end = if row == range.end.row() && range.end.column() != 0 {
3537 range.end
3538 } else {
3539 DisplayPoint::new(row, u32::MAX)
3540 };
3541 let ix = row.minus(rows.start) as usize;
3542 debug_assert!(row >= rows.start && row < rows.end);
3543 debug_assert!(ix < per_row_map.len());
3544 per_row_map[ix].push((seg_start..seg_end, color));
3545 }
3546 }
3547 for row_segments in per_row_map.iter_mut() {
3548 if row_segments.is_empty() {
3549 continue;
3550 }
3551 let segments = mem::take(row_segments);
3552 let merged = Self::merge_overlapping_ranges(segments, base_background);
3553 *row_segments = merged;
3554 }
3555 per_row_map
3556 }
3557
3558 /// Merge overlapping ranges by splitting at all range boundaries and blending colors where
3559 /// multiple ranges overlap. The result contains non-overlapping ranges ordered from left to right.
3560 ///
3561 /// Expects `start.row() == end.row()` for each range.
3562 fn merge_overlapping_ranges(
3563 ranges: Vec<(Range<DisplayPoint>, Hsla)>,
3564 base_background: Hsla,
3565 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
3566 struct Boundary {
3567 pos: DisplayPoint,
3568 is_start: bool,
3569 index: usize,
3570 color: Hsla,
3571 }
3572
3573 let mut boundaries: SmallVec<[Boundary; 16]> = SmallVec::with_capacity(ranges.len() * 2);
3574 for (index, (range, color)) in ranges.iter().enumerate() {
3575 debug_assert!(
3576 range.start.row() == range.end.row(),
3577 "expects single-row ranges"
3578 );
3579 if range.start < range.end {
3580 boundaries.push(Boundary {
3581 pos: range.start,
3582 is_start: true,
3583 index,
3584 color: *color,
3585 });
3586 boundaries.push(Boundary {
3587 pos: range.end,
3588 is_start: false,
3589 index,
3590 color: *color,
3591 });
3592 }
3593 }
3594
3595 if boundaries.is_empty() {
3596 return Vec::new();
3597 }
3598
3599 boundaries
3600 .sort_unstable_by(|a, b| a.pos.cmp(&b.pos).then_with(|| a.is_start.cmp(&b.is_start)));
3601
3602 let mut processed_ranges: Vec<(Range<DisplayPoint>, Hsla)> = Vec::new();
3603 let mut active_ranges: SmallVec<[(usize, Hsla); 8]> = SmallVec::new();
3604
3605 let mut i = 0;
3606 let mut start_pos = boundaries[0].pos;
3607
3608 let boundaries_len = boundaries.len();
3609 while i < boundaries_len {
3610 let current_boundary_pos = boundaries[i].pos;
3611 if start_pos < current_boundary_pos {
3612 if !active_ranges.is_empty() {
3613 let mut color = base_background;
3614 for &(_, c) in &active_ranges {
3615 color = Hsla::blend(color, c);
3616 }
3617 if let Some((last_range, last_color)) = processed_ranges.last_mut() {
3618 if *last_color == color && last_range.end == start_pos {
3619 last_range.end = current_boundary_pos;
3620 } else {
3621 processed_ranges.push((start_pos..current_boundary_pos, color));
3622 }
3623 } else {
3624 processed_ranges.push((start_pos..current_boundary_pos, color));
3625 }
3626 }
3627 }
3628 while i < boundaries_len && boundaries[i].pos == current_boundary_pos {
3629 let active_range = &boundaries[i];
3630 if active_range.is_start {
3631 let idx = active_range.index;
3632 let pos = active_ranges
3633 .binary_search_by_key(&idx, |(i, _)| *i)
3634 .unwrap_or_else(|p| p);
3635 active_ranges.insert(pos, (idx, active_range.color));
3636 } else {
3637 let idx = active_range.index;
3638 if let Ok(pos) = active_ranges.binary_search_by_key(&idx, |(i, _)| *i) {
3639 active_ranges.remove(pos);
3640 }
3641 }
3642 i += 1;
3643 }
3644 start_pos = current_boundary_pos;
3645 }
3646
3647 processed_ranges
3648 }
3649
3650 fn layout_lines(
3651 rows: Range<DisplayRow>,
3652 snapshot: &EditorSnapshot,
3653 style: &EditorStyle,
3654 editor_width: Pixels,
3655 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3656 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
3657 window: &mut Window,
3658 cx: &mut App,
3659 ) -> Vec<LineWithInvisibles> {
3660 if rows.start >= rows.end {
3661 return Vec::new();
3662 }
3663
3664 // Show the placeholder when the editor is empty
3665 if snapshot.is_empty() {
3666 let font_size = style.text.font_size.to_pixels(window.rem_size());
3667 let placeholder_color = cx.theme().colors().text_placeholder;
3668 let placeholder_text = snapshot.placeholder_text();
3669
3670 let placeholder_lines = placeholder_text
3671 .as_ref()
3672 .map_or(Vec::new(), |text| text.split('\n').collect::<Vec<_>>());
3673
3674 let placeholder_line_count = placeholder_lines.len();
3675
3676 placeholder_lines
3677 .into_iter()
3678 .skip(rows.start.0 as usize)
3679 .chain(iter::repeat(""))
3680 .take(cmp::max(rows.len(), placeholder_line_count))
3681 .map(move |line| {
3682 let run = TextRun {
3683 len: line.len(),
3684 font: style.text.font(),
3685 color: placeholder_color,
3686 ..Default::default()
3687 };
3688 let line = window.text_system().shape_line(
3689 line.to_string().into(),
3690 font_size,
3691 &[run],
3692 None,
3693 );
3694 LineWithInvisibles {
3695 width: line.width,
3696 len: line.len,
3697 fragments: smallvec![LineFragment::Text(line)],
3698 invisibles: Vec::new(),
3699 font_size,
3700 }
3701 })
3702 .collect()
3703 } else {
3704 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
3705 LineWithInvisibles::from_chunks(
3706 chunks,
3707 style,
3708 MAX_LINE_LEN,
3709 rows.len(),
3710 &snapshot.mode,
3711 editor_width,
3712 is_row_soft_wrapped,
3713 bg_segments_per_row,
3714 window,
3715 cx,
3716 )
3717 }
3718 }
3719
3720 fn prepaint_lines(
3721 &self,
3722 start_row: DisplayRow,
3723 line_layouts: &mut [LineWithInvisibles],
3724 line_height: Pixels,
3725 scroll_position: gpui::Point<ScrollOffset>,
3726 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
3727 content_origin: gpui::Point<Pixels>,
3728 window: &mut Window,
3729 cx: &mut App,
3730 ) -> SmallVec<[AnyElement; 1]> {
3731 let mut line_elements = SmallVec::new();
3732 for (ix, line) in line_layouts.iter_mut().enumerate() {
3733 let row = start_row + DisplayRow(ix as u32);
3734 line.prepaint(
3735 line_height,
3736 scroll_position,
3737 scroll_pixel_position,
3738 row,
3739 content_origin,
3740 &mut line_elements,
3741 window,
3742 cx,
3743 );
3744 }
3745 line_elements
3746 }
3747
3748 fn render_block(
3749 &self,
3750 block: &Block,
3751 available_width: AvailableSpace,
3752 block_id: BlockId,
3753 block_row_start: DisplayRow,
3754 snapshot: &EditorSnapshot,
3755 text_x: Pixels,
3756 rows: &Range<DisplayRow>,
3757 line_layouts: &[LineWithInvisibles],
3758 editor_margins: &EditorMargins,
3759 line_height: Pixels,
3760 em_width: Pixels,
3761 text_hitbox: &Hitbox,
3762 editor_width: Pixels,
3763 scroll_width: &mut Pixels,
3764 resized_blocks: &mut HashMap<CustomBlockId, u32>,
3765 row_block_types: &mut HashMap<DisplayRow, bool>,
3766 selections: &[Selection<Point>],
3767 selected_buffer_ids: &Vec<BufferId>,
3768 latest_selection_anchors: &HashMap<BufferId, Anchor>,
3769 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3770 sticky_header_excerpt_id: Option<ExcerptId>,
3771 block_resize_offset: &mut i32,
3772 window: &mut Window,
3773 cx: &mut App,
3774 ) -> Option<(AnyElement, Size<Pixels>, DisplayRow, Pixels)> {
3775 let mut x_position = None;
3776 let mut element = match block {
3777 Block::Custom(custom) => {
3778 let block_start = custom.start().to_point(&snapshot.buffer_snapshot());
3779 let block_end = custom.end().to_point(&snapshot.buffer_snapshot());
3780 if block.place_near() && snapshot.is_line_folded(MultiBufferRow(block_start.row)) {
3781 return None;
3782 }
3783 let align_to = block_start.to_display_point(snapshot);
3784 let x_and_width = |layout: &LineWithInvisibles| {
3785 Some((
3786 text_x + layout.x_for_index(align_to.column() as usize),
3787 text_x + layout.width,
3788 ))
3789 };
3790 let line_ix = align_to.row().0.checked_sub(rows.start.0);
3791 x_position =
3792 if let Some(layout) = line_ix.and_then(|ix| line_layouts.get(ix as usize)) {
3793 x_and_width(layout)
3794 } else {
3795 x_and_width(&layout_line(
3796 align_to.row(),
3797 snapshot,
3798 &self.style,
3799 editor_width,
3800 is_row_soft_wrapped,
3801 window,
3802 cx,
3803 ))
3804 };
3805
3806 let anchor_x = x_position.unwrap().0;
3807
3808 let selected = selections
3809 .binary_search_by(|selection| {
3810 if selection.end <= block_start {
3811 Ordering::Less
3812 } else if selection.start >= block_end {
3813 Ordering::Greater
3814 } else {
3815 Ordering::Equal
3816 }
3817 })
3818 .is_ok();
3819
3820 div()
3821 .size_full()
3822 .child(custom.render(&mut BlockContext {
3823 window,
3824 app: cx,
3825 anchor_x,
3826 margins: editor_margins,
3827 line_height,
3828 em_width,
3829 block_id,
3830 selected,
3831 max_width: text_hitbox.size.width.max(*scroll_width),
3832 editor_style: &self.style,
3833 }))
3834 .into_any()
3835 }
3836
3837 Block::FoldedBuffer {
3838 first_excerpt,
3839 height,
3840 ..
3841 } => {
3842 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
3843 let result = v_flex().id(block_id).w_full().pr(editor_margins.right);
3844
3845 let jump_data = header_jump_data(
3846 snapshot,
3847 block_row_start,
3848 *height,
3849 first_excerpt,
3850 latest_selection_anchors,
3851 );
3852 result
3853 .child(self.render_buffer_header(
3854 first_excerpt,
3855 true,
3856 selected,
3857 false,
3858 jump_data,
3859 window,
3860 cx,
3861 ))
3862 .into_any_element()
3863 }
3864
3865 Block::ExcerptBoundary { .. } => {
3866 let color = cx.theme().colors().clone();
3867 let mut result = v_flex().id(block_id).w_full();
3868
3869 result = result.child(
3870 h_flex().relative().child(
3871 div()
3872 .top(line_height / 2.)
3873 .absolute()
3874 .w_full()
3875 .h_px()
3876 .bg(color.border_variant),
3877 ),
3878 );
3879
3880 result.into_any()
3881 }
3882
3883 Block::BufferHeader { excerpt, height } => {
3884 let mut result = v_flex().id(block_id).w_full();
3885
3886 let jump_data = header_jump_data(
3887 snapshot,
3888 block_row_start,
3889 *height,
3890 excerpt,
3891 latest_selection_anchors,
3892 );
3893
3894 if sticky_header_excerpt_id != Some(excerpt.id) {
3895 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3896
3897 result = result.child(div().pr(editor_margins.right).child(
3898 self.render_buffer_header(
3899 excerpt, false, selected, false, jump_data, window, cx,
3900 ),
3901 ));
3902 } else {
3903 result =
3904 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
3905 }
3906
3907 result.into_any()
3908 }
3909 };
3910
3911 // Discover the element's content height, then round up to the nearest multiple of line height.
3912 let preliminary_size = element.layout_as_root(
3913 size(available_width, AvailableSpace::MinContent),
3914 window,
3915 cx,
3916 );
3917 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
3918 let final_size = if preliminary_size.height == quantized_height {
3919 preliminary_size
3920 } else {
3921 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
3922 };
3923 let mut element_height_in_lines = ((final_size.height / line_height).ceil() as u32).max(1);
3924
3925 let effective_row_start = block_row_start.0 as i32 + *block_resize_offset;
3926 debug_assert!(effective_row_start >= 0);
3927 let mut row = DisplayRow(effective_row_start.max(0) as u32);
3928
3929 let mut x_offset = px(0.);
3930 let mut is_block = true;
3931
3932 if let BlockId::Custom(custom_block_id) = block_id
3933 && block.has_height()
3934 {
3935 if block.place_near()
3936 && let Some((x_target, line_width)) = x_position
3937 {
3938 let margin = em_width * 2;
3939 if line_width + final_size.width + margin
3940 < editor_width + editor_margins.gutter.full_width()
3941 && !row_block_types.contains_key(&(row - 1))
3942 && element_height_in_lines == 1
3943 {
3944 x_offset = line_width + margin;
3945 row = row - 1;
3946 is_block = false;
3947 element_height_in_lines = 0;
3948 row_block_types.insert(row, is_block);
3949 } else {
3950 let max_offset =
3951 editor_width + editor_margins.gutter.full_width() - final_size.width;
3952 let min_offset = (x_target + em_width - final_size.width)
3953 .max(editor_margins.gutter.full_width());
3954 x_offset = x_target.min(max_offset).max(min_offset);
3955 }
3956 };
3957 if element_height_in_lines != block.height() {
3958 *block_resize_offset += element_height_in_lines as i32 - block.height() as i32;
3959 resized_blocks.insert(custom_block_id, element_height_in_lines);
3960 }
3961 }
3962 for i in 0..element_height_in_lines {
3963 row_block_types.insert(row + i, is_block);
3964 }
3965
3966 Some((element, final_size, row, x_offset))
3967 }
3968
3969 fn render_buffer_header(
3970 &self,
3971 for_excerpt: &ExcerptInfo,
3972 is_folded: bool,
3973 is_selected: bool,
3974 is_sticky: bool,
3975 jump_data: JumpData,
3976 window: &mut Window,
3977 cx: &mut App,
3978 ) -> impl IntoElement {
3979 let editor = self.editor.read(cx);
3980 let multi_buffer = editor.buffer.read(cx);
3981 let is_read_only = self.editor.read(cx).read_only(cx);
3982 let editor_handle: &dyn ItemHandle = &self.editor;
3983
3984 let breadcrumbs = if is_selected {
3985 editor.breadcrumbs_inner(cx.theme(), cx)
3986 } else {
3987 None
3988 };
3989
3990 let file_status = multi_buffer
3991 .all_diff_hunks_expanded()
3992 .then(|| editor.status_for_buffer_id(for_excerpt.buffer_id, cx))
3993 .flatten();
3994 let indicator = multi_buffer
3995 .buffer(for_excerpt.buffer_id)
3996 .and_then(|buffer| {
3997 let buffer = buffer.read(cx);
3998 let indicator_color = match (buffer.has_conflict(), buffer.is_dirty()) {
3999 (true, _) => Some(Color::Warning),
4000 (_, true) => Some(Color::Accent),
4001 (false, false) => None,
4002 };
4003 indicator_color.map(|indicator_color| Indicator::dot().color(indicator_color))
4004 });
4005
4006 let include_root = editor
4007 .project
4008 .as_ref()
4009 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
4010 .unwrap_or_default();
4011 let file = for_excerpt.buffer.file();
4012 let can_open_excerpts = file.is_none_or(|file| file.can_open());
4013 let path_style = file.map(|file| file.path_style(cx));
4014 let relative_path = for_excerpt.buffer.resolve_file_path(include_root, cx);
4015 let (parent_path, filename) = if let Some(path) = &relative_path {
4016 if let Some(path_style) = path_style {
4017 let (dir, file_name) = path_style.split(path);
4018 (dir.map(|dir| dir.to_owned()), Some(file_name.to_owned()))
4019 } else {
4020 (None, Some(path.clone()))
4021 }
4022 } else {
4023 (None, None)
4024 };
4025 let focus_handle = editor.focus_handle(cx);
4026 let colors = cx.theme().colors();
4027
4028 let header = div()
4029 .p_1()
4030 .w_full()
4031 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
4032 .child(
4033 h_flex()
4034 .size_full()
4035 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
4036 .pl_1()
4037 .pr_2()
4038 .rounded_sm()
4039 .gap_1p5()
4040 .when(is_sticky, |el| el.shadow_md())
4041 .border_1()
4042 .map(|border| {
4043 let border_color = if is_selected
4044 && is_folded
4045 && focus_handle.contains_focused(window, cx)
4046 {
4047 colors.border_focused
4048 } else {
4049 colors.border
4050 };
4051 border.border_color(border_color)
4052 })
4053 .bg(colors.editor_subheader_background)
4054 .hover(|style| style.bg(colors.element_hover))
4055 .map(|header| {
4056 let editor = self.editor.clone();
4057 let buffer_id = for_excerpt.buffer_id;
4058 let toggle_chevron_icon =
4059 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
4060 let button_size = rems_from_px(28.);
4061
4062 header.child(
4063 div()
4064 .hover(|style| style.bg(colors.element_selected))
4065 .rounded_xs()
4066 .child(
4067 ButtonLike::new("toggle-buffer-fold")
4068 .style(ButtonStyle::Transparent)
4069 .height(button_size.into())
4070 .width(button_size)
4071 .children(toggle_chevron_icon)
4072 .tooltip({
4073 let focus_handle = focus_handle.clone();
4074 let is_folded_for_tooltip = is_folded;
4075 move |_window, cx| {
4076 Tooltip::with_meta_in(
4077 if is_folded_for_tooltip {
4078 "Unfold Excerpt"
4079 } else {
4080 "Fold Excerpt"
4081 },
4082 Some(&ToggleFold),
4083 format!(
4084 "{} to toggle all",
4085 text_for_keystroke(
4086 &Modifiers::alt(),
4087 "click",
4088 cx
4089 )
4090 ),
4091 &focus_handle,
4092 cx,
4093 )
4094 }
4095 })
4096 .on_click(move |event, window, cx| {
4097 if event.modifiers().alt {
4098 // Alt+click toggles all buffers
4099 editor.update(cx, |editor, cx| {
4100 editor.toggle_fold_all(
4101 &ToggleFoldAll,
4102 window,
4103 cx,
4104 );
4105 });
4106 } else {
4107 // Regular click toggles single buffer
4108 if is_folded {
4109 editor.update(cx, |editor, cx| {
4110 editor.unfold_buffer(buffer_id, cx);
4111 });
4112 } else {
4113 editor.update(cx, |editor, cx| {
4114 editor.fold_buffer(buffer_id, cx);
4115 });
4116 }
4117 }
4118 }),
4119 ),
4120 )
4121 })
4122 .children(
4123 editor
4124 .addons
4125 .values()
4126 .filter_map(|addon| {
4127 addon.render_buffer_header_controls(for_excerpt, window, cx)
4128 })
4129 .take(1),
4130 )
4131 .when(!is_read_only, |this| {
4132 this.child(
4133 h_flex()
4134 .size_3()
4135 .justify_center()
4136 .flex_shrink_0()
4137 .children(indicator),
4138 )
4139 })
4140 .child(
4141 h_flex()
4142 .cursor_pointer()
4143 .id("path_header_block")
4144 .min_w_0()
4145 .size_full()
4146 .gap_1()
4147 .justify_between()
4148 .overflow_hidden()
4149 .child(h_flex().min_w_0().flex_1().gap_0p5().overflow_hidden().map(
4150 |path_header| {
4151 let filename = filename
4152 .map(SharedString::from)
4153 .unwrap_or_else(|| "untitled".into());
4154
4155 let full_path = match parent_path.as_deref() {
4156 Some(parent) if !parent.is_empty() => {
4157 format!("{}{}", parent, filename.as_str())
4158 }
4159 _ => filename.as_str().to_string(),
4160 };
4161
4162 path_header
4163 .child(
4164 ButtonLike::new("filename-button")
4165 .when(
4166 ItemSettings::get_global(cx).file_icons,
4167 |this| {
4168 let path =
4169 path::Path::new(filename.as_str());
4170 let icon = FileIcons::get_icon(path, cx)
4171 .unwrap_or_default();
4172
4173 this.child(
4174 Icon::from_path(icon)
4175 .color(Color::Muted),
4176 )
4177 },
4178 )
4179 .child(
4180 Label::new(filename)
4181 .single_line()
4182 .color(file_status_label_color(file_status))
4183 .buffer_font(cx)
4184 .when(
4185 file_status
4186 .is_some_and(|s| s.is_deleted()),
4187 |label| label.strikethrough(),
4188 ),
4189 )
4190 .tooltip(move |_, cx| {
4191 Tooltip::with_meta(
4192 "Open File",
4193 None,
4194 full_path.clone(),
4195 cx,
4196 )
4197 })
4198 .on_click(window.listener_for(&self.editor, {
4199 let jump_data = jump_data.clone();
4200 move |editor, e: &ClickEvent, window, cx| {
4201 editor.open_excerpts_common(
4202 Some(jump_data.clone()),
4203 e.modifiers().secondary(),
4204 window,
4205 cx,
4206 );
4207 }
4208 })),
4209 )
4210 .when_some(parent_path, |then, path| {
4211 then.child(
4212 Label::new(path)
4213 .buffer_font(cx)
4214 .truncate_start()
4215 .color(
4216 if file_status
4217 .is_some_and(FileStatus::is_deleted)
4218 {
4219 Color::Custom(colors.text_disabled)
4220 } else {
4221 Color::Custom(colors.text_muted)
4222 },
4223 ),
4224 )
4225 })
4226 .when(!for_excerpt.buffer.capability.editable(), |el| {
4227 el.child(
4228 Icon::new(IconName::FileLock).color(Color::Muted),
4229 )
4230 })
4231 .when_some(breadcrumbs, |then, breadcrumbs| {
4232 then.child(render_breadcrumb_text(
4233 breadcrumbs,
4234 None,
4235 editor_handle,
4236 true,
4237 window,
4238 cx,
4239 ))
4240 })
4241 },
4242 ))
4243 .when(
4244 can_open_excerpts && is_selected && relative_path.is_some(),
4245 |el| {
4246 el.child(
4247 Button::new("open-file-button", "Open File")
4248 .style(ButtonStyle::OutlinedGhost)
4249 .key_binding(KeyBinding::for_action_in(
4250 &OpenExcerpts,
4251 &focus_handle,
4252 cx,
4253 ))
4254 .on_click(window.listener_for(&self.editor, {
4255 let jump_data = jump_data.clone();
4256 move |editor, e: &ClickEvent, window, cx| {
4257 editor.open_excerpts_common(
4258 Some(jump_data.clone()),
4259 e.modifiers().secondary(),
4260 window,
4261 cx,
4262 );
4263 }
4264 })),
4265 )
4266 },
4267 )
4268 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
4269 .on_click(window.listener_for(&self.editor, {
4270 let buffer_id = for_excerpt.buffer_id;
4271 move |editor, e: &ClickEvent, window, cx| {
4272 if e.modifiers().alt {
4273 editor.open_excerpts_common(
4274 Some(jump_data.clone()),
4275 e.modifiers().secondary(),
4276 window,
4277 cx,
4278 );
4279 return;
4280 }
4281
4282 if is_folded {
4283 editor.unfold_buffer(buffer_id, cx);
4284 } else {
4285 editor.fold_buffer(buffer_id, cx);
4286 }
4287 }
4288 })),
4289 ),
4290 );
4291
4292 let file = for_excerpt.buffer.file().cloned();
4293 let editor = self.editor.clone();
4294
4295 right_click_menu("buffer-header-context-menu")
4296 .trigger(move |_, _, _| header)
4297 .menu(move |window, cx| {
4298 let menu_context = focus_handle.clone();
4299 let editor = editor.clone();
4300 let file = file.clone();
4301 ContextMenu::build(window, cx, move |mut menu, window, cx| {
4302 if let Some(file) = file
4303 && let Some(project) = editor.read(cx).project()
4304 && let Some(worktree) =
4305 project.read(cx).worktree_for_id(file.worktree_id(cx), cx)
4306 {
4307 let path_style = file.path_style(cx);
4308 let worktree = worktree.read(cx);
4309 let relative_path = file.path();
4310 let entry_for_path = worktree.entry_for_path(relative_path);
4311 let abs_path = entry_for_path.map(|e| {
4312 e.canonical_path.as_deref().map_or_else(
4313 || worktree.absolutize(relative_path),
4314 Path::to_path_buf,
4315 )
4316 });
4317 let has_relative_path = worktree.root_entry().is_some_and(Entry::is_dir);
4318
4319 let parent_abs_path = abs_path
4320 .as_ref()
4321 .and_then(|abs_path| Some(abs_path.parent()?.to_path_buf()));
4322 let relative_path = has_relative_path
4323 .then_some(relative_path)
4324 .map(ToOwned::to_owned);
4325
4326 let visible_in_project_panel =
4327 relative_path.is_some() && worktree.is_visible();
4328 let reveal_in_project_panel = entry_for_path
4329 .filter(|_| visible_in_project_panel)
4330 .map(|entry| entry.id);
4331 menu = menu
4332 .when_some(abs_path, |menu, abs_path| {
4333 menu.entry(
4334 "Copy Path",
4335 Some(Box::new(zed_actions::workspace::CopyPath)),
4336 window.handler_for(&editor, move |_, _, cx| {
4337 cx.write_to_clipboard(ClipboardItem::new_string(
4338 abs_path.to_string_lossy().into_owned(),
4339 ));
4340 }),
4341 )
4342 })
4343 .when_some(relative_path, |menu, relative_path| {
4344 menu.entry(
4345 "Copy Relative Path",
4346 Some(Box::new(zed_actions::workspace::CopyRelativePath)),
4347 window.handler_for(&editor, move |_, _, cx| {
4348 cx.write_to_clipboard(ClipboardItem::new_string(
4349 relative_path.display(path_style).to_string(),
4350 ));
4351 }),
4352 )
4353 })
4354 .when(
4355 reveal_in_project_panel.is_some() || parent_abs_path.is_some(),
4356 |menu| menu.separator(),
4357 )
4358 .when_some(reveal_in_project_panel, |menu, entry_id| {
4359 menu.entry(
4360 "Reveal In Project Panel",
4361 Some(Box::new(RevealInProjectPanel::default())),
4362 window.handler_for(&editor, move |editor, _, cx| {
4363 if let Some(project) = &mut editor.project {
4364 project.update(cx, |_, cx| {
4365 cx.emit(project::Event::RevealInProjectPanel(
4366 entry_id,
4367 ))
4368 });
4369 }
4370 }),
4371 )
4372 })
4373 .when_some(parent_abs_path, |menu, parent_abs_path| {
4374 menu.entry(
4375 "Open in Terminal",
4376 Some(Box::new(OpenInTerminal)),
4377 window.handler_for(&editor, move |_, window, cx| {
4378 window.dispatch_action(
4379 OpenTerminal {
4380 working_directory: parent_abs_path.clone(),
4381 local: false,
4382 }
4383 .boxed_clone(),
4384 cx,
4385 );
4386 }),
4387 )
4388 });
4389 }
4390
4391 menu.context(menu_context)
4392 })
4393 })
4394 }
4395
4396 fn render_blocks(
4397 &self,
4398 rows: Range<DisplayRow>,
4399 snapshot: &EditorSnapshot,
4400 hitbox: &Hitbox,
4401 text_hitbox: &Hitbox,
4402 editor_width: Pixels,
4403 scroll_width: &mut Pixels,
4404 editor_margins: &EditorMargins,
4405 em_width: Pixels,
4406 text_x: Pixels,
4407 line_height: Pixels,
4408 line_layouts: &mut [LineWithInvisibles],
4409 selections: &[Selection<Point>],
4410 selected_buffer_ids: &Vec<BufferId>,
4411 latest_selection_anchors: &HashMap<BufferId, Anchor>,
4412 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4413 sticky_header_excerpt_id: Option<ExcerptId>,
4414 window: &mut Window,
4415 cx: &mut App,
4416 ) -> RenderBlocksOutput {
4417 let (fixed_blocks, non_fixed_blocks) = snapshot
4418 .blocks_in_range(rows.clone())
4419 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
4420
4421 let mut focused_block = self
4422 .editor
4423 .update(cx, |editor, _| editor.take_focused_block());
4424 let mut fixed_block_max_width = Pixels::ZERO;
4425 let mut blocks = Vec::new();
4426 let mut resized_blocks = HashMap::default();
4427 let mut row_block_types = HashMap::default();
4428 let mut block_resize_offset: i32 = 0;
4429
4430 for (row, block) in fixed_blocks {
4431 let block_id = block.id();
4432
4433 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4434 focused_block = None;
4435 }
4436
4437 if let Some((element, element_size, row, x_offset)) = self.render_block(
4438 block,
4439 AvailableSpace::MinContent,
4440 block_id,
4441 row,
4442 snapshot,
4443 text_x,
4444 &rows,
4445 line_layouts,
4446 editor_margins,
4447 line_height,
4448 em_width,
4449 text_hitbox,
4450 editor_width,
4451 scroll_width,
4452 &mut resized_blocks,
4453 &mut row_block_types,
4454 selections,
4455 selected_buffer_ids,
4456 latest_selection_anchors,
4457 is_row_soft_wrapped,
4458 sticky_header_excerpt_id,
4459 &mut block_resize_offset,
4460 window,
4461 cx,
4462 ) {
4463 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
4464 blocks.push(BlockLayout {
4465 id: block_id,
4466 x_offset,
4467 row: Some(row),
4468 element,
4469 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
4470 style: BlockStyle::Fixed,
4471 overlaps_gutter: true,
4472 is_buffer_header: block.is_buffer_header(),
4473 });
4474 }
4475 }
4476
4477 for (row, block) in non_fixed_blocks {
4478 let style = block.style();
4479 let width = match (style, block.place_near()) {
4480 (_, true) => AvailableSpace::MinContent,
4481 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
4482 (BlockStyle::Flex, _) => hitbox
4483 .size
4484 .width
4485 .max(fixed_block_max_width)
4486 .max(editor_margins.gutter.width + *scroll_width)
4487 .into(),
4488 (BlockStyle::Fixed, _) => unreachable!(),
4489 };
4490 let block_id = block.id();
4491
4492 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4493 focused_block = None;
4494 }
4495
4496 if let Some((element, element_size, row, x_offset)) = self.render_block(
4497 block,
4498 width,
4499 block_id,
4500 row,
4501 snapshot,
4502 text_x,
4503 &rows,
4504 line_layouts,
4505 editor_margins,
4506 line_height,
4507 em_width,
4508 text_hitbox,
4509 editor_width,
4510 scroll_width,
4511 &mut resized_blocks,
4512 &mut row_block_types,
4513 selections,
4514 selected_buffer_ids,
4515 latest_selection_anchors,
4516 is_row_soft_wrapped,
4517 sticky_header_excerpt_id,
4518 &mut block_resize_offset,
4519 window,
4520 cx,
4521 ) {
4522 blocks.push(BlockLayout {
4523 id: block_id,
4524 x_offset,
4525 row: Some(row),
4526 element,
4527 available_space: size(width, element_size.height.into()),
4528 style,
4529 overlaps_gutter: !block.place_near(),
4530 is_buffer_header: block.is_buffer_header(),
4531 });
4532 }
4533 }
4534
4535 if let Some(focused_block) = focused_block
4536 && let Some(focus_handle) = focused_block.focus_handle.upgrade()
4537 && focus_handle.is_focused(window)
4538 && let Some(block) = snapshot.block_for_id(focused_block.id)
4539 {
4540 let style = block.style();
4541 let width = match style {
4542 BlockStyle::Fixed => AvailableSpace::MinContent,
4543 BlockStyle::Flex => AvailableSpace::Definite(
4544 hitbox
4545 .size
4546 .width
4547 .max(fixed_block_max_width)
4548 .max(editor_margins.gutter.width + *scroll_width),
4549 ),
4550 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
4551 };
4552
4553 if let Some((element, element_size, _, x_offset)) = self.render_block(
4554 &block,
4555 width,
4556 focused_block.id,
4557 rows.end,
4558 snapshot,
4559 text_x,
4560 &rows,
4561 line_layouts,
4562 editor_margins,
4563 line_height,
4564 em_width,
4565 text_hitbox,
4566 editor_width,
4567 scroll_width,
4568 &mut resized_blocks,
4569 &mut row_block_types,
4570 selections,
4571 selected_buffer_ids,
4572 latest_selection_anchors,
4573 is_row_soft_wrapped,
4574 sticky_header_excerpt_id,
4575 &mut block_resize_offset,
4576 window,
4577 cx,
4578 ) {
4579 blocks.push(BlockLayout {
4580 id: block.id(),
4581 x_offset,
4582 row: None,
4583 element,
4584 available_space: size(width, element_size.height.into()),
4585 style,
4586 overlaps_gutter: true,
4587 is_buffer_header: block.is_buffer_header(),
4588 });
4589 }
4590 }
4591
4592 if resized_blocks.is_empty() {
4593 *scroll_width =
4594 (*scroll_width).max(fixed_block_max_width - editor_margins.gutter.width);
4595 }
4596
4597 RenderBlocksOutput {
4598 blocks,
4599 row_block_types,
4600 resized_blocks: (!resized_blocks.is_empty()).then_some(resized_blocks),
4601 }
4602 }
4603
4604 fn layout_blocks(
4605 &self,
4606 blocks: &mut Vec<BlockLayout>,
4607 hitbox: &Hitbox,
4608 line_height: Pixels,
4609 scroll_position: gpui::Point<ScrollOffset>,
4610 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4611 window: &mut Window,
4612 cx: &mut App,
4613 ) {
4614 for block in blocks {
4615 let mut origin = if let Some(row) = block.row {
4616 hitbox.origin
4617 + point(
4618 block.x_offset,
4619 Pixels::from(
4620 (row.as_f64() - scroll_position.y)
4621 * ScrollPixelOffset::from(line_height),
4622 ),
4623 )
4624 } else {
4625 // Position the block outside the visible area
4626 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
4627 };
4628
4629 if !matches!(block.style, BlockStyle::Sticky) {
4630 origin += point(Pixels::from(-scroll_pixel_position.x), Pixels::ZERO);
4631 }
4632
4633 let focus_handle =
4634 block
4635 .element
4636 .prepaint_as_root(origin, block.available_space, window, cx);
4637
4638 if let Some(focus_handle) = focus_handle {
4639 self.editor.update(cx, |editor, _cx| {
4640 editor.set_focused_block(FocusedBlock {
4641 id: block.id,
4642 focus_handle: focus_handle.downgrade(),
4643 });
4644 });
4645 }
4646 }
4647 }
4648
4649 fn layout_sticky_buffer_header(
4650 &self,
4651 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
4652 scroll_position: gpui::Point<ScrollOffset>,
4653 line_height: Pixels,
4654 right_margin: Pixels,
4655 snapshot: &EditorSnapshot,
4656 hitbox: &Hitbox,
4657 selected_buffer_ids: &Vec<BufferId>,
4658 blocks: &[BlockLayout],
4659 latest_selection_anchors: &HashMap<BufferId, Anchor>,
4660 window: &mut Window,
4661 cx: &mut App,
4662 ) -> AnyElement {
4663 let jump_data = header_jump_data(
4664 snapshot,
4665 DisplayRow(scroll_position.y as u32),
4666 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
4667 excerpt,
4668 latest_selection_anchors,
4669 );
4670
4671 let editor_bg_color = cx.theme().colors().editor_background;
4672
4673 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
4674
4675 let available_width = hitbox.bounds.size.width - right_margin;
4676
4677 let mut header = v_flex()
4678 .w_full()
4679 .relative()
4680 .child(
4681 div()
4682 .w(available_width)
4683 .h(FILE_HEADER_HEIGHT as f32 * line_height)
4684 .bg(linear_gradient(
4685 0.,
4686 linear_color_stop(editor_bg_color.opacity(0.), 0.),
4687 linear_color_stop(editor_bg_color, 0.6),
4688 ))
4689 .absolute()
4690 .top_0(),
4691 )
4692 .child(
4693 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
4694 .into_any_element(),
4695 )
4696 .into_any_element();
4697
4698 let mut origin = hitbox.origin;
4699 // Move floating header up to avoid colliding with the next buffer header.
4700 for block in blocks.iter() {
4701 if !block.is_buffer_header {
4702 continue;
4703 }
4704
4705 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position.y as u32) else {
4706 continue;
4707 };
4708
4709 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
4710 let offset = scroll_position.y - max_row as f64;
4711
4712 if offset > 0.0 {
4713 origin.y -= Pixels::from(offset * ScrollPixelOffset::from(line_height));
4714 }
4715 break;
4716 }
4717
4718 let size = size(
4719 AvailableSpace::Definite(available_width),
4720 AvailableSpace::MinContent,
4721 );
4722
4723 header.prepaint_as_root(origin, size, window, cx);
4724
4725 header
4726 }
4727
4728 fn layout_sticky_headers(
4729 &self,
4730 snapshot: &EditorSnapshot,
4731 editor_width: Pixels,
4732 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4733 line_height: Pixels,
4734 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4735 content_origin: gpui::Point<Pixels>,
4736 gutter_dimensions: &GutterDimensions,
4737 gutter_hitbox: &Hitbox,
4738 text_hitbox: &Hitbox,
4739 style: &EditorStyle,
4740 relative_line_numbers: RelativeLineNumbers,
4741 relative_to: Option<DisplayRow>,
4742 window: &mut Window,
4743 cx: &mut App,
4744 ) -> Option<StickyHeaders> {
4745 let show_line_numbers = snapshot
4746 .show_line_numbers
4747 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
4748
4749 let rows = Self::sticky_headers(self.editor.read(cx), snapshot, style, cx);
4750
4751 let mut lines = Vec::<StickyHeaderLine>::new();
4752
4753 for StickyHeader {
4754 item,
4755 sticky_row,
4756 start_point,
4757 offset,
4758 } in rows.into_iter().rev()
4759 {
4760 let line = layout_line(
4761 sticky_row,
4762 snapshot,
4763 &self.style,
4764 editor_width,
4765 is_row_soft_wrapped,
4766 window,
4767 cx,
4768 );
4769
4770 let line_number = show_line_numbers.then(|| {
4771 let start_display_row = start_point.to_display_point(snapshot).row();
4772 let relative_number = relative_to
4773 .filter(|_| relative_line_numbers != RelativeLineNumbers::Disabled)
4774 .map(|base| {
4775 snapshot.relative_line_delta(
4776 base,
4777 start_display_row,
4778 relative_line_numbers == RelativeLineNumbers::Wrapped,
4779 )
4780 });
4781 let number = relative_number
4782 .filter(|&delta| delta != 0)
4783 .map(|delta| delta.unsigned_abs() as u32)
4784 .unwrap_or(start_point.row + 1);
4785 let color = cx.theme().colors().editor_line_number;
4786 self.shape_line_number(SharedString::from(number.to_string()), color, window)
4787 });
4788
4789 lines.push(StickyHeaderLine::new(
4790 sticky_row,
4791 line_height * offset as f32,
4792 line,
4793 line_number,
4794 item.range.start,
4795 line_height,
4796 scroll_pixel_position,
4797 content_origin,
4798 gutter_hitbox,
4799 text_hitbox,
4800 window,
4801 cx,
4802 ));
4803 }
4804
4805 lines.reverse();
4806 if lines.is_empty() {
4807 return None;
4808 }
4809
4810 Some(StickyHeaders {
4811 lines,
4812 gutter_background: cx.theme().colors().editor_gutter_background,
4813 content_background: self.style.background,
4814 gutter_right_padding: gutter_dimensions.right_padding,
4815 })
4816 }
4817
4818 pub(crate) fn sticky_headers(
4819 editor: &Editor,
4820 snapshot: &EditorSnapshot,
4821 style: &EditorStyle,
4822 cx: &App,
4823 ) -> Vec<StickyHeader> {
4824 let scroll_top = snapshot.scroll_position().y;
4825
4826 let mut end_rows = Vec::<DisplayRow>::new();
4827 let mut rows = Vec::<StickyHeader>::new();
4828
4829 let items = editor.sticky_headers(style, cx).unwrap_or_default();
4830
4831 for item in items {
4832 let start_point = item.range.start.to_point(snapshot.buffer_snapshot());
4833 let end_point = item.range.end.to_point(snapshot.buffer_snapshot());
4834
4835 let sticky_row = snapshot
4836 .display_snapshot
4837 .point_to_display_point(start_point, Bias::Left)
4838 .row();
4839 let end_row = snapshot
4840 .display_snapshot
4841 .point_to_display_point(end_point, Bias::Left)
4842 .row();
4843 let max_sticky_row = end_row.previous_row();
4844 if max_sticky_row <= sticky_row {
4845 continue;
4846 }
4847
4848 while end_rows
4849 .last()
4850 .is_some_and(|&last_end| last_end < sticky_row)
4851 {
4852 end_rows.pop();
4853 }
4854 let depth = end_rows.len();
4855 let adjusted_scroll_top = scroll_top + depth as f64;
4856
4857 if sticky_row.as_f64() >= adjusted_scroll_top || end_row.as_f64() <= adjusted_scroll_top
4858 {
4859 continue;
4860 }
4861
4862 let max_scroll_offset = max_sticky_row.as_f64() - scroll_top;
4863 let offset = (depth as f64).min(max_scroll_offset);
4864
4865 end_rows.push(end_row);
4866 rows.push(StickyHeader {
4867 item,
4868 sticky_row,
4869 start_point,
4870 offset,
4871 });
4872 }
4873
4874 rows
4875 }
4876
4877 fn layout_cursor_popovers(
4878 &self,
4879 line_height: Pixels,
4880 text_hitbox: &Hitbox,
4881 content_origin: gpui::Point<Pixels>,
4882 right_margin: Pixels,
4883 start_row: DisplayRow,
4884 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4885 line_layouts: &[LineWithInvisibles],
4886 cursor: DisplayPoint,
4887 cursor_point: Point,
4888 style: &EditorStyle,
4889 window: &mut Window,
4890 cx: &mut App,
4891 ) -> Option<ContextMenuLayout> {
4892 let mut min_menu_height = Pixels::ZERO;
4893 let mut max_menu_height = Pixels::ZERO;
4894 let mut height_above_menu = Pixels::ZERO;
4895 let height_below_menu = Pixels::ZERO;
4896 let mut edit_prediction_popover_visible = false;
4897 let mut context_menu_visible = false;
4898 let context_menu_placement;
4899
4900 {
4901 let editor = self.editor.read(cx);
4902 if editor.edit_prediction_visible_in_cursor_popover(editor.has_active_edit_prediction())
4903 {
4904 height_above_menu +=
4905 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
4906 edit_prediction_popover_visible = true;
4907 }
4908
4909 if editor.context_menu_visible()
4910 && let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin()
4911 {
4912 let (min_height_in_lines, max_height_in_lines) = editor
4913 .context_menu_options
4914 .as_ref()
4915 .map_or((3, 12), |options| {
4916 (options.min_entries_visible, options.max_entries_visible)
4917 });
4918
4919 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4920 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4921 context_menu_visible = true;
4922 }
4923 context_menu_placement = editor
4924 .context_menu_options
4925 .as_ref()
4926 .and_then(|options| options.placement.clone());
4927 }
4928
4929 let visible = edit_prediction_popover_visible || context_menu_visible;
4930 if !visible {
4931 return None;
4932 }
4933
4934 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
4935 let target_position = content_origin
4936 + gpui::Point {
4937 x: cmp::max(
4938 px(0.),
4939 Pixels::from(
4940 ScrollPixelOffset::from(
4941 cursor_row_layout.x_for_index(cursor.column() as usize),
4942 ) - scroll_pixel_position.x,
4943 ),
4944 ),
4945 y: cmp::max(
4946 px(0.),
4947 Pixels::from(
4948 cursor.row().next_row().as_f64() * ScrollPixelOffset::from(line_height)
4949 - scroll_pixel_position.y,
4950 ),
4951 ),
4952 };
4953
4954 let viewport_bounds =
4955 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4956 right: -right_margin - MENU_GAP,
4957 ..Default::default()
4958 });
4959
4960 let min_height = height_above_menu + min_menu_height + height_below_menu;
4961 let max_height = height_above_menu + max_menu_height + height_below_menu;
4962 let (laid_out_popovers, y_flipped) = self.layout_popovers_above_or_below_line(
4963 target_position,
4964 line_height,
4965 min_height,
4966 max_height,
4967 context_menu_placement,
4968 text_hitbox,
4969 viewport_bounds,
4970 window,
4971 cx,
4972 |height, max_width_for_stable_x, y_flipped, window, cx| {
4973 // First layout the menu to get its size - others can be at least this wide.
4974 let context_menu = if context_menu_visible {
4975 let menu_height = if y_flipped {
4976 height - height_below_menu
4977 } else {
4978 height - height_above_menu
4979 };
4980 let mut element = self
4981 .render_context_menu(line_height, menu_height, window, cx)
4982 .expect("Visible context menu should always render.");
4983 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4984 Some((CursorPopoverType::CodeContextMenu, element, size))
4985 } else {
4986 None
4987 };
4988 let min_width = context_menu
4989 .as_ref()
4990 .map_or(px(0.), |(_, _, size)| size.width);
4991 let max_width = max_width_for_stable_x.max(
4992 context_menu
4993 .as_ref()
4994 .map_or(px(0.), |(_, _, size)| size.width),
4995 );
4996
4997 let edit_prediction = if edit_prediction_popover_visible {
4998 self.editor.update(cx, move |editor, cx| {
4999 let accept_binding = editor.accept_edit_prediction_keybind(
5000 EditPredictionGranularity::Full,
5001 window,
5002 cx,
5003 );
5004 let mut element = editor.render_edit_prediction_cursor_popover(
5005 min_width,
5006 max_width,
5007 cursor_point,
5008 style,
5009 accept_binding.keystroke(),
5010 window,
5011 cx,
5012 )?;
5013 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
5014 Some((CursorPopoverType::EditPrediction, element, size))
5015 })
5016 } else {
5017 None
5018 };
5019 vec![edit_prediction, context_menu]
5020 .into_iter()
5021 .flatten()
5022 .collect::<Vec<_>>()
5023 },
5024 )?;
5025
5026 let (menu_ix, (_, menu_bounds)) = laid_out_popovers
5027 .iter()
5028 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))?;
5029 let last_ix = laid_out_popovers.len() - 1;
5030 let menu_is_last = menu_ix == last_ix;
5031 let first_popover_bounds = laid_out_popovers[0].1;
5032 let last_popover_bounds = laid_out_popovers[last_ix].1;
5033
5034 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
5035 // right, and otherwise it goes below or to the right.
5036 let mut target_bounds = Bounds::from_corners(
5037 first_popover_bounds.origin,
5038 last_popover_bounds.bottom_right(),
5039 );
5040 target_bounds.size.width = menu_bounds.size.width;
5041
5042 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
5043 // based on this is preferred for layout stability.
5044 let mut max_target_bounds = target_bounds;
5045 max_target_bounds.size.height = max_height;
5046 if y_flipped {
5047 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
5048 }
5049
5050 // Add spacing around `target_bounds` and `max_target_bounds`.
5051 let mut extend_amount = Edges::all(MENU_GAP);
5052 if y_flipped {
5053 extend_amount.bottom = line_height;
5054 } else {
5055 extend_amount.top = line_height;
5056 }
5057 let target_bounds = target_bounds.extend(extend_amount);
5058 let max_target_bounds = max_target_bounds.extend(extend_amount);
5059
5060 let must_place_above_or_below =
5061 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
5062 laid_out_popovers[menu_ix + 1..]
5063 .iter()
5064 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
5065 } else {
5066 false
5067 };
5068
5069 let aside_bounds = self.layout_context_menu_aside(
5070 y_flipped,
5071 *menu_bounds,
5072 target_bounds,
5073 max_target_bounds,
5074 max_menu_height,
5075 must_place_above_or_below,
5076 text_hitbox,
5077 viewport_bounds,
5078 window,
5079 cx,
5080 );
5081
5082 if let Some(menu_bounds) = laid_out_popovers.iter().find_map(|(popover_type, bounds)| {
5083 if matches!(popover_type, CursorPopoverType::CodeContextMenu) {
5084 Some(*bounds)
5085 } else {
5086 None
5087 }
5088 }) {
5089 let bounds = if let Some(aside_bounds) = aside_bounds {
5090 menu_bounds.union(&aside_bounds)
5091 } else {
5092 menu_bounds
5093 };
5094 return Some(ContextMenuLayout { y_flipped, bounds });
5095 }
5096
5097 None
5098 }
5099
5100 fn layout_gutter_menu(
5101 &self,
5102 line_height: Pixels,
5103 text_hitbox: &Hitbox,
5104 content_origin: gpui::Point<Pixels>,
5105 right_margin: Pixels,
5106 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5107 gutter_overshoot: Pixels,
5108 window: &mut Window,
5109 cx: &mut App,
5110 ) {
5111 let editor = self.editor.read(cx);
5112 if !editor.context_menu_visible() {
5113 return;
5114 }
5115 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
5116 editor.context_menu_origin()
5117 else {
5118 return;
5119 };
5120 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
5121 // indicator than just a plain first column of the text field.
5122 let target_position = content_origin
5123 + gpui::Point {
5124 x: -gutter_overshoot,
5125 y: Pixels::from(
5126 gutter_row.next_row().as_f64() * ScrollPixelOffset::from(line_height)
5127 - scroll_pixel_position.y,
5128 ),
5129 };
5130
5131 let (min_height_in_lines, max_height_in_lines) = editor
5132 .context_menu_options
5133 .as_ref()
5134 .map_or((3, 12), |options| {
5135 (options.min_entries_visible, options.max_entries_visible)
5136 });
5137
5138 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
5139 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
5140 let viewport_bounds =
5141 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
5142 right: -right_margin - MENU_GAP,
5143 ..Default::default()
5144 });
5145 self.layout_popovers_above_or_below_line(
5146 target_position,
5147 line_height,
5148 min_height,
5149 max_height,
5150 editor
5151 .context_menu_options
5152 .as_ref()
5153 .and_then(|options| options.placement.clone()),
5154 text_hitbox,
5155 viewport_bounds,
5156 window,
5157 cx,
5158 move |height, _max_width_for_stable_x, _, window, cx| {
5159 let mut element = self
5160 .render_context_menu(line_height, height, window, cx)
5161 .expect("Visible context menu should always render.");
5162 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
5163 vec![(CursorPopoverType::CodeContextMenu, element, size)]
5164 },
5165 );
5166 }
5167
5168 fn layout_popovers_above_or_below_line(
5169 &self,
5170 target_position: gpui::Point<Pixels>,
5171 line_height: Pixels,
5172 min_height: Pixels,
5173 max_height: Pixels,
5174 placement: Option<ContextMenuPlacement>,
5175 text_hitbox: &Hitbox,
5176 viewport_bounds: Bounds<Pixels>,
5177 window: &mut Window,
5178 cx: &mut App,
5179 make_sized_popovers: impl FnOnce(
5180 Pixels,
5181 Pixels,
5182 bool,
5183 &mut Window,
5184 &mut App,
5185 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
5186 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
5187 let text_style = TextStyleRefinement {
5188 line_height: Some(DefiniteLength::Fraction(
5189 BufferLineHeight::Comfortable.value(),
5190 )),
5191 ..Default::default()
5192 };
5193 window.with_text_style(Some(text_style), |window| {
5194 // If the max height won't fit below and there is more space above, put it above the line.
5195 let bottom_y_when_flipped = target_position.y - line_height;
5196 let available_above = bottom_y_when_flipped - text_hitbox.top();
5197 let available_below = text_hitbox.bottom() - target_position.y;
5198 let y_overflows_below = max_height > available_below;
5199 let mut y_flipped = match placement {
5200 Some(ContextMenuPlacement::Above) => true,
5201 Some(ContextMenuPlacement::Below) => false,
5202 None => y_overflows_below && available_above > available_below,
5203 };
5204 let mut height = cmp::min(
5205 max_height,
5206 if y_flipped {
5207 available_above
5208 } else {
5209 available_below
5210 },
5211 );
5212
5213 // If the min height doesn't fit within text bounds, instead fit within the window.
5214 if height < min_height {
5215 let available_above = bottom_y_when_flipped;
5216 let available_below = viewport_bounds.bottom() - target_position.y;
5217 let (y_flipped_override, height_override) = match placement {
5218 Some(ContextMenuPlacement::Above) => {
5219 (true, cmp::min(available_above, min_height))
5220 }
5221 Some(ContextMenuPlacement::Below) => {
5222 (false, cmp::min(available_below, min_height))
5223 }
5224 None => {
5225 if available_below > min_height {
5226 (false, min_height)
5227 } else if available_above > min_height {
5228 (true, min_height)
5229 } else if available_above > available_below {
5230 (true, available_above)
5231 } else {
5232 (false, available_below)
5233 }
5234 }
5235 };
5236 y_flipped = y_flipped_override;
5237 height = height_override;
5238 }
5239
5240 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
5241
5242 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
5243 // for very narrow windows.
5244 let popovers =
5245 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
5246 if popovers.is_empty() {
5247 return None;
5248 }
5249
5250 let max_width = popovers
5251 .iter()
5252 .map(|(_, _, size)| size.width)
5253 .max()
5254 .unwrap_or_default();
5255
5256 let mut current_position = gpui::Point {
5257 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
5258 // overflow. Include space for the scrollbar.
5259 x: target_position
5260 .x
5261 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
5262 y: if y_flipped {
5263 bottom_y_when_flipped
5264 } else {
5265 target_position.y
5266 },
5267 };
5268
5269 let mut laid_out_popovers = popovers
5270 .into_iter()
5271 .map(|(popover_type, element, size)| {
5272 if y_flipped {
5273 current_position.y -= size.height;
5274 }
5275 let position = current_position;
5276 window.defer_draw(element, current_position, 1);
5277 if !y_flipped {
5278 current_position.y += size.height + MENU_GAP;
5279 } else {
5280 current_position.y -= MENU_GAP;
5281 }
5282 (popover_type, Bounds::new(position, size))
5283 })
5284 .collect::<Vec<_>>();
5285
5286 if y_flipped {
5287 laid_out_popovers.reverse();
5288 }
5289
5290 Some((laid_out_popovers, y_flipped))
5291 })
5292 }
5293
5294 fn layout_context_menu_aside(
5295 &self,
5296 y_flipped: bool,
5297 menu_bounds: Bounds<Pixels>,
5298 target_bounds: Bounds<Pixels>,
5299 max_target_bounds: Bounds<Pixels>,
5300 max_height: Pixels,
5301 must_place_above_or_below: bool,
5302 text_hitbox: &Hitbox,
5303 viewport_bounds: Bounds<Pixels>,
5304 window: &mut Window,
5305 cx: &mut App,
5306 ) -> Option<Bounds<Pixels>> {
5307 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
5308 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
5309 && !must_place_above_or_below
5310 {
5311 let max_width = cmp::min(
5312 available_within_viewport.right - px(1.),
5313 MENU_ASIDE_MAX_WIDTH,
5314 );
5315 let mut aside = self.render_context_menu_aside(
5316 size(max_width, max_height - POPOVER_Y_PADDING),
5317 window,
5318 cx,
5319 )?;
5320 let size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5321 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
5322 Some((aside, right_position, size))
5323 } else {
5324 let max_size = size(
5325 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
5326 // won't be needed here.
5327 cmp::min(
5328 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
5329 viewport_bounds.right(),
5330 ),
5331 cmp::min(
5332 max_height,
5333 cmp::max(
5334 available_within_viewport.top,
5335 available_within_viewport.bottom,
5336 ),
5337 ) - POPOVER_Y_PADDING,
5338 );
5339 let mut aside = self.render_context_menu_aside(max_size, window, cx)?;
5340 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5341
5342 let top_position = point(
5343 menu_bounds.origin.x,
5344 target_bounds.top() - actual_size.height,
5345 );
5346 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
5347
5348 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
5349 // Prefer to fit on the same side of the line as the menu, then on the other side of
5350 // the line.
5351 if !y_flipped && wanted.height < available.bottom {
5352 Some(bottom_position)
5353 } else if !y_flipped && wanted.height < available.top {
5354 Some(top_position)
5355 } else if y_flipped && wanted.height < available.top {
5356 Some(top_position)
5357 } else if y_flipped && wanted.height < available.bottom {
5358 Some(bottom_position)
5359 } else {
5360 None
5361 }
5362 };
5363
5364 // Prefer choosing a direction using max sizes rather than actual size for stability.
5365 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
5366 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
5367 let aside_position = fit_within(available_within_text, wanted)
5368 // Fallback: fit max size in window.
5369 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
5370 // Fallback: fit actual size in window.
5371 .or_else(|| fit_within(available_within_viewport, actual_size));
5372
5373 aside_position.map(|position| (aside, position, actual_size))
5374 };
5375
5376 // Skip drawing if it doesn't fit anywhere.
5377 if let Some((aside, position, size)) = positioned_aside {
5378 let aside_bounds = Bounds::new(position, size);
5379 window.defer_draw(aside, position, 2);
5380 return Some(aside_bounds);
5381 }
5382
5383 None
5384 }
5385
5386 fn render_context_menu(
5387 &self,
5388 line_height: Pixels,
5389 height: Pixels,
5390 window: &mut Window,
5391 cx: &mut App,
5392 ) -> Option<AnyElement> {
5393 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
5394 self.editor.update(cx, |editor, cx| {
5395 editor.render_context_menu(max_height_in_lines, window, cx)
5396 })
5397 }
5398
5399 fn render_context_menu_aside(
5400 &self,
5401 max_size: Size<Pixels>,
5402 window: &mut Window,
5403 cx: &mut App,
5404 ) -> Option<AnyElement> {
5405 if max_size.width < px(100.) || max_size.height < px(12.) {
5406 None
5407 } else {
5408 self.editor.update(cx, |editor, cx| {
5409 editor.render_context_menu_aside(max_size, window, cx)
5410 })
5411 }
5412 }
5413
5414 fn layout_mouse_context_menu(
5415 &self,
5416 editor_snapshot: &EditorSnapshot,
5417 visible_range: Range<DisplayRow>,
5418 content_origin: gpui::Point<Pixels>,
5419 window: &mut Window,
5420 cx: &mut App,
5421 ) -> Option<AnyElement> {
5422 let position = self.editor.update(cx, |editor, cx| {
5423 let visible_start_point = editor.display_to_pixel_point(
5424 DisplayPoint::new(visible_range.start, 0),
5425 editor_snapshot,
5426 window,
5427 cx,
5428 )?;
5429 let visible_end_point = editor.display_to_pixel_point(
5430 DisplayPoint::new(visible_range.end, 0),
5431 editor_snapshot,
5432 window,
5433 cx,
5434 )?;
5435
5436 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5437 let (source_display_point, position) = match mouse_context_menu.position {
5438 MenuPosition::PinnedToScreen(point) => (None, point),
5439 MenuPosition::PinnedToEditor { source, offset } => {
5440 let source_display_point = source.to_display_point(editor_snapshot);
5441 let source_point =
5442 editor.to_pixel_point(source, editor_snapshot, window, cx)?;
5443 let position = content_origin + source_point + offset;
5444 (Some(source_display_point), position)
5445 }
5446 };
5447
5448 let source_included = source_display_point.is_none_or(|source_display_point| {
5449 visible_range
5450 .to_inclusive()
5451 .contains(&source_display_point.row())
5452 });
5453 let position_included =
5454 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
5455 if !source_included && !position_included {
5456 None
5457 } else {
5458 Some(position)
5459 }
5460 })?;
5461
5462 let text_style = TextStyleRefinement {
5463 line_height: Some(DefiniteLength::Fraction(
5464 BufferLineHeight::Comfortable.value(),
5465 )),
5466 ..Default::default()
5467 };
5468 window.with_text_style(Some(text_style), |window| {
5469 let mut element = self.editor.read_with(cx, |editor, _| {
5470 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5471 let context_menu = mouse_context_menu.context_menu.clone();
5472
5473 Some(
5474 deferred(
5475 anchored()
5476 .position(position)
5477 .child(context_menu)
5478 .anchor(Corner::TopLeft)
5479 .snap_to_window_with_margin(px(8.)),
5480 )
5481 .with_priority(1)
5482 .into_any(),
5483 )
5484 })?;
5485
5486 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
5487 Some(element)
5488 })
5489 }
5490
5491 fn layout_hover_popovers(
5492 &self,
5493 snapshot: &EditorSnapshot,
5494 hitbox: &Hitbox,
5495 visible_display_row_range: Range<DisplayRow>,
5496 content_origin: gpui::Point<Pixels>,
5497 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5498 line_layouts: &[LineWithInvisibles],
5499 line_height: Pixels,
5500 em_width: Pixels,
5501 context_menu_layout: Option<ContextMenuLayout>,
5502 window: &mut Window,
5503 cx: &mut App,
5504 ) {
5505 struct MeasuredHoverPopover {
5506 element: AnyElement,
5507 size: Size<Pixels>,
5508 horizontal_offset: Pixels,
5509 }
5510
5511 let max_size = size(
5512 (120. * em_width) // Default size
5513 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5514 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5515 (16. * line_height) // Default size
5516 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5517 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5518 );
5519
5520 // Don't show hover popovers when context menu is open to avoid overlap
5521 let has_context_menu = self.editor.read(cx).mouse_context_menu.is_some();
5522 if has_context_menu {
5523 return;
5524 }
5525
5526 let hover_popovers = self.editor.update(cx, |editor, cx| {
5527 editor.hover_state.render(
5528 snapshot,
5529 visible_display_row_range.clone(),
5530 max_size,
5531 &editor.text_layout_details(window),
5532 window,
5533 cx,
5534 )
5535 });
5536 let Some((popover_position, hover_popovers)) = hover_popovers else {
5537 return;
5538 };
5539
5540 // This is safe because we check on layout whether the required row is available
5541 let hovered_row_layout = &line_layouts[popover_position
5542 .row()
5543 .minus(visible_display_row_range.start)
5544 as usize];
5545
5546 // Compute Hovered Point
5547 let x = hovered_row_layout.x_for_index(popover_position.column() as usize)
5548 - Pixels::from(scroll_pixel_position.x);
5549 let y = Pixels::from(
5550 popover_position.row().as_f64() * ScrollPixelOffset::from(line_height)
5551 - scroll_pixel_position.y,
5552 );
5553 let hovered_point = content_origin + point(x, y);
5554
5555 let mut overall_height = Pixels::ZERO;
5556 let mut measured_hover_popovers = Vec::new();
5557 for (position, mut hover_popover) in hover_popovers.into_iter().with_position() {
5558 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
5559 let horizontal_offset =
5560 (hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
5561 .min(Pixels::ZERO);
5562 match position {
5563 itertools::Position::Middle | itertools::Position::Last => {
5564 overall_height += HOVER_POPOVER_GAP
5565 }
5566 _ => {}
5567 }
5568 overall_height += size.height;
5569 measured_hover_popovers.push(MeasuredHoverPopover {
5570 element: hover_popover,
5571 size,
5572 horizontal_offset,
5573 });
5574 }
5575
5576 fn draw_occluder(
5577 width: Pixels,
5578 origin: gpui::Point<Pixels>,
5579 window: &mut Window,
5580 cx: &mut App,
5581 ) {
5582 let mut occlusion = div()
5583 .size_full()
5584 .occlude()
5585 .on_mouse_move(|_, _, cx| cx.stop_propagation())
5586 .into_any_element();
5587 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
5588 window.defer_draw(occlusion, origin, 2);
5589 }
5590
5591 fn place_popovers_above(
5592 hovered_point: gpui::Point<Pixels>,
5593 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5594 window: &mut Window,
5595 cx: &mut App,
5596 ) {
5597 let mut current_y = hovered_point.y;
5598 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5599 let size = popover.size;
5600 let popover_origin = point(
5601 hovered_point.x + popover.horizontal_offset,
5602 current_y - size.height,
5603 );
5604
5605 window.defer_draw(popover.element, popover_origin, 2);
5606 if position != itertools::Position::Last {
5607 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
5608 draw_occluder(size.width, origin, window, cx);
5609 }
5610
5611 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5612 }
5613 }
5614
5615 fn place_popovers_below(
5616 hovered_point: gpui::Point<Pixels>,
5617 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5618 line_height: Pixels,
5619 window: &mut Window,
5620 cx: &mut App,
5621 ) {
5622 let mut current_y = hovered_point.y + line_height;
5623 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5624 let size = popover.size;
5625 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5626
5627 window.defer_draw(popover.element, popover_origin, 2);
5628 if position != itertools::Position::Last {
5629 let origin = point(popover_origin.x, popover_origin.y + size.height);
5630 draw_occluder(size.width, origin, window, cx);
5631 }
5632
5633 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5634 }
5635 }
5636
5637 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5638 context_menu_layout
5639 .as_ref()
5640 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5641 };
5642
5643 let can_place_above = {
5644 let mut bounds_above = Vec::new();
5645 let mut current_y = hovered_point.y;
5646 for popover in &measured_hover_popovers {
5647 let size = popover.size;
5648 let popover_origin = point(
5649 hovered_point.x + popover.horizontal_offset,
5650 current_y - size.height,
5651 );
5652 bounds_above.push(Bounds::new(popover_origin, size));
5653 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5654 }
5655 bounds_above
5656 .iter()
5657 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5658 };
5659
5660 let can_place_below = || {
5661 let mut bounds_below = Vec::new();
5662 let mut current_y = hovered_point.y + line_height;
5663 for popover in &measured_hover_popovers {
5664 let size = popover.size;
5665 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5666 bounds_below.push(Bounds::new(popover_origin, size));
5667 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5668 }
5669 bounds_below
5670 .iter()
5671 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5672 };
5673
5674 if can_place_above {
5675 // try placing above hovered point
5676 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5677 } else if can_place_below() {
5678 // try placing below hovered point
5679 place_popovers_below(
5680 hovered_point,
5681 measured_hover_popovers,
5682 line_height,
5683 window,
5684 cx,
5685 );
5686 } else {
5687 // try to place popovers around the context menu
5688 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5689 let total_width = measured_hover_popovers
5690 .iter()
5691 .map(|p| p.size.width)
5692 .max()
5693 .unwrap_or(Pixels::ZERO);
5694 let y_for_horizontal_positioning = if menu.y_flipped {
5695 menu.bounds.bottom() - overall_height
5696 } else {
5697 menu.bounds.top()
5698 };
5699 let possible_origins = vec![
5700 // left of context menu
5701 point(
5702 menu.bounds.left() - total_width - HOVER_POPOVER_GAP,
5703 y_for_horizontal_positioning,
5704 ),
5705 // right of context menu
5706 point(
5707 menu.bounds.right() + HOVER_POPOVER_GAP,
5708 y_for_horizontal_positioning,
5709 ),
5710 // top of context menu
5711 point(
5712 menu.bounds.left(),
5713 menu.bounds.top() - overall_height - HOVER_POPOVER_GAP,
5714 ),
5715 // bottom of context menu
5716 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5717 ];
5718 possible_origins.into_iter().find(|&origin| {
5719 Bounds::new(origin, size(total_width, overall_height))
5720 .is_contained_within(hitbox)
5721 })
5722 });
5723 if let Some(origin) = origin_surrounding_menu {
5724 let mut current_y = origin.y;
5725 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5726 let size = popover.size;
5727 let popover_origin = point(origin.x, current_y);
5728
5729 window.defer_draw(popover.element, popover_origin, 2);
5730 if position != itertools::Position::Last {
5731 let origin = point(popover_origin.x, popover_origin.y + size.height);
5732 draw_occluder(size.width, origin, window, cx);
5733 }
5734
5735 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5736 }
5737 } else {
5738 // fallback to existing above/below cursor logic
5739 // this might overlap menu or overflow in rare case
5740 if can_place_above {
5741 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5742 } else {
5743 place_popovers_below(
5744 hovered_point,
5745 measured_hover_popovers,
5746 line_height,
5747 window,
5748 cx,
5749 );
5750 }
5751 }
5752 }
5753 }
5754
5755 fn layout_word_diff_highlights(
5756 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5757 row_infos: &[RowInfo],
5758 start_row: DisplayRow,
5759 snapshot: &EditorSnapshot,
5760 highlighted_ranges: &mut Vec<(Range<DisplayPoint>, Hsla)>,
5761 cx: &mut App,
5762 ) {
5763 let colors = cx.theme().colors();
5764
5765 let word_highlights = display_hunks
5766 .into_iter()
5767 .filter_map(|(hunk, _)| match hunk {
5768 DisplayDiffHunk::Unfolded {
5769 word_diffs, status, ..
5770 } => Some((word_diffs, status)),
5771 _ => None,
5772 })
5773 .filter(|(_, status)| status.is_modified())
5774 .flat_map(|(word_diffs, _)| word_diffs)
5775 .filter_map(|word_diff| {
5776 let start_point = word_diff.start.to_display_point(&snapshot.display_snapshot);
5777 let end_point = word_diff.end.to_display_point(&snapshot.display_snapshot);
5778 let start_row_offset = start_point.row().0.saturating_sub(start_row.0) as usize;
5779
5780 row_infos
5781 .get(start_row_offset)
5782 .and_then(|row_info| row_info.diff_status)
5783 .and_then(|diff_status| {
5784 let background_color = match diff_status.kind {
5785 DiffHunkStatusKind::Added => colors.version_control_word_added,
5786 DiffHunkStatusKind::Deleted => colors.version_control_word_deleted,
5787 DiffHunkStatusKind::Modified => {
5788 debug_panic!("modified diff status for row info");
5789 return None;
5790 }
5791 };
5792 Some((start_point..end_point, background_color))
5793 })
5794 });
5795
5796 highlighted_ranges.extend(word_highlights);
5797 }
5798
5799 fn layout_diff_hunk_controls(
5800 &self,
5801 row_range: Range<DisplayRow>,
5802 row_infos: &[RowInfo],
5803 text_hitbox: &Hitbox,
5804 newest_cursor_position: Option<DisplayPoint>,
5805 line_height: Pixels,
5806 right_margin: Pixels,
5807 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5808 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5809 highlighted_rows: &BTreeMap<DisplayRow, LineHighlight>,
5810 editor: Entity<Editor>,
5811 window: &mut Window,
5812 cx: &mut App,
5813 ) -> (Vec<AnyElement>, Vec<(DisplayRow, Bounds<Pixels>)>) {
5814 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
5815 let hovered_diff_hunk_row = editor.read(cx).hovered_diff_hunk_row;
5816
5817 let mut controls = vec![];
5818 let mut control_bounds = vec![];
5819
5820 let active_positions = [
5821 hovered_diff_hunk_row.map(|row| DisplayPoint::new(row, 0)),
5822 newest_cursor_position,
5823 ];
5824
5825 for (hunk, _) in display_hunks {
5826 if let DisplayDiffHunk::Unfolded {
5827 display_row_range,
5828 multi_buffer_range,
5829 status,
5830 is_created_file,
5831 ..
5832 } = &hunk
5833 {
5834 if display_row_range.start < row_range.start
5835 || display_row_range.start >= row_range.end
5836 {
5837 continue;
5838 }
5839 if highlighted_rows
5840 .get(&display_row_range.start)
5841 .and_then(|highlight| highlight.type_id)
5842 .is_some_and(|type_id| {
5843 [
5844 TypeId::of::<ConflictsOuter>(),
5845 TypeId::of::<ConflictsOursMarker>(),
5846 TypeId::of::<ConflictsOurs>(),
5847 TypeId::of::<ConflictsTheirs>(),
5848 TypeId::of::<ConflictsTheirsMarker>(),
5849 ]
5850 .contains(&type_id)
5851 })
5852 {
5853 continue;
5854 }
5855 let row_ix = (display_row_range.start - row_range.start).0 as usize;
5856 if row_infos[row_ix].diff_status.is_none() {
5857 continue;
5858 }
5859 if row_infos[row_ix]
5860 .diff_status
5861 .is_some_and(|status| status.is_added())
5862 && !status.is_added()
5863 {
5864 continue;
5865 }
5866
5867 if active_positions
5868 .iter()
5869 .any(|p| p.is_some_and(|p| display_row_range.contains(&p.row())))
5870 {
5871 let y = (display_row_range.start.as_f64()
5872 * ScrollPixelOffset::from(line_height)
5873 + ScrollPixelOffset::from(text_hitbox.bounds.top())
5874 - scroll_pixel_position.y)
5875 .into();
5876
5877 let mut element = render_diff_hunk_controls(
5878 display_row_range.start.0,
5879 status,
5880 multi_buffer_range.clone(),
5881 *is_created_file,
5882 line_height,
5883 &editor,
5884 window,
5885 cx,
5886 );
5887 let size =
5888 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
5889
5890 let x = text_hitbox.bounds.right() - right_margin - px(10.) - size.width;
5891
5892 if x < text_hitbox.bounds.left() {
5893 continue;
5894 }
5895
5896 let bounds = Bounds::new(gpui::Point::new(x, y), size);
5897 control_bounds.push((display_row_range.start, bounds));
5898
5899 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
5900 element.prepaint(window, cx)
5901 });
5902 controls.push(element);
5903 }
5904 }
5905 }
5906
5907 (controls, control_bounds)
5908 }
5909
5910 fn layout_signature_help(
5911 &self,
5912 hitbox: &Hitbox,
5913 content_origin: gpui::Point<Pixels>,
5914 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5915 newest_selection_head: Option<DisplayPoint>,
5916 start_row: DisplayRow,
5917 line_layouts: &[LineWithInvisibles],
5918 line_height: Pixels,
5919 em_width: Pixels,
5920 context_menu_layout: Option<ContextMenuLayout>,
5921 window: &mut Window,
5922 cx: &mut App,
5923 ) {
5924 if !self.editor.focus_handle(cx).is_focused(window) {
5925 return;
5926 }
5927 let Some(newest_selection_head) = newest_selection_head else {
5928 return;
5929 };
5930
5931 let max_size = size(
5932 (120. * em_width) // Default size
5933 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5934 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5935 (16. * line_height) // Default size
5936 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5937 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5938 );
5939
5940 let maybe_element = self.editor.update(cx, |editor, cx| {
5941 if let Some(popover) = editor.signature_help_state.popover_mut() {
5942 let element = popover.render(max_size, window, cx);
5943 Some(element)
5944 } else {
5945 None
5946 }
5947 });
5948 let Some(mut element) = maybe_element else {
5949 return;
5950 };
5951
5952 let selection_row = newest_selection_head.row();
5953 let Some(cursor_row_layout) = (selection_row >= start_row)
5954 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
5955 .flatten()
5956 else {
5957 return;
5958 };
5959
5960 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
5961 - Pixels::from(scroll_pixel_position.x);
5962 let target_y = Pixels::from(
5963 selection_row.as_f64() * ScrollPixelOffset::from(line_height) - scroll_pixel_position.y,
5964 );
5965 let target_point = content_origin + point(target_x, target_y);
5966
5967 let actual_size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
5968
5969 let (popover_bounds_above, popover_bounds_below) = {
5970 let horizontal_offset = (hitbox.top_right().x
5971 - POPOVER_RIGHT_OFFSET
5972 - (target_point.x + actual_size.width))
5973 .min(Pixels::ZERO);
5974 let initial_x = target_point.x + horizontal_offset;
5975 (
5976 Bounds::new(
5977 point(initial_x, target_point.y - actual_size.height),
5978 actual_size,
5979 ),
5980 Bounds::new(
5981 point(initial_x, target_point.y + line_height + HOVER_POPOVER_GAP),
5982 actual_size,
5983 ),
5984 )
5985 };
5986
5987 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5988 context_menu_layout
5989 .as_ref()
5990 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5991 };
5992
5993 let final_origin = if popover_bounds_above.is_contained_within(hitbox)
5994 && !intersects_menu(popover_bounds_above)
5995 {
5996 // try placing above cursor
5997 popover_bounds_above.origin
5998 } else if popover_bounds_below.is_contained_within(hitbox)
5999 && !intersects_menu(popover_bounds_below)
6000 {
6001 // try placing below cursor
6002 popover_bounds_below.origin
6003 } else {
6004 // try surrounding context menu if exists
6005 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
6006 let y_for_horizontal_positioning = if menu.y_flipped {
6007 menu.bounds.bottom() - actual_size.height
6008 } else {
6009 menu.bounds.top()
6010 };
6011 let possible_origins = vec![
6012 // left of context menu
6013 point(
6014 menu.bounds.left() - actual_size.width - HOVER_POPOVER_GAP,
6015 y_for_horizontal_positioning,
6016 ),
6017 // right of context menu
6018 point(
6019 menu.bounds.right() + HOVER_POPOVER_GAP,
6020 y_for_horizontal_positioning,
6021 ),
6022 // top of context menu
6023 point(
6024 menu.bounds.left(),
6025 menu.bounds.top() - actual_size.height - HOVER_POPOVER_GAP,
6026 ),
6027 // bottom of context menu
6028 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
6029 ];
6030 possible_origins
6031 .into_iter()
6032 .find(|&origin| Bounds::new(origin, actual_size).is_contained_within(hitbox))
6033 });
6034 origin_surrounding_menu.unwrap_or_else(|| {
6035 // fallback to existing above/below cursor logic
6036 // this might overlap menu or overflow in rare case
6037 if popover_bounds_above.is_contained_within(hitbox) {
6038 popover_bounds_above.origin
6039 } else {
6040 popover_bounds_below.origin
6041 }
6042 })
6043 };
6044
6045 window.defer_draw(element, final_origin, 2);
6046 }
6047
6048 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
6049 window.paint_layer(layout.hitbox.bounds, |window| {
6050 let scroll_top = layout.position_map.snapshot.scroll_position().y;
6051 let gutter_bg = cx.theme().colors().editor_gutter_background;
6052 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
6053 window.paint_quad(fill(
6054 layout.position_map.text_hitbox.bounds,
6055 self.style.background,
6056 ));
6057
6058 if matches!(
6059 layout.mode,
6060 EditorMode::Full { .. } | EditorMode::Minimap { .. }
6061 ) {
6062 let show_active_line_background = match layout.mode {
6063 EditorMode::Full {
6064 show_active_line_background,
6065 ..
6066 } => show_active_line_background,
6067 EditorMode::Minimap { .. } => true,
6068 _ => false,
6069 };
6070 let mut active_rows = layout.active_rows.iter().peekable();
6071 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
6072 let mut end_row = start_row.0;
6073 while active_rows
6074 .peek()
6075 .is_some_and(|(active_row, has_selection)| {
6076 active_row.0 == end_row + 1
6077 && has_selection.selection == contains_non_empty_selection.selection
6078 })
6079 {
6080 active_rows.next().unwrap();
6081 end_row += 1;
6082 }
6083
6084 if show_active_line_background && !contains_non_empty_selection.selection {
6085 let highlight_h_range =
6086 match layout.position_map.snapshot.current_line_highlight {
6087 CurrentLineHighlight::Gutter => Some(Range {
6088 start: layout.hitbox.left(),
6089 end: layout.gutter_hitbox.right(),
6090 }),
6091 CurrentLineHighlight::Line => Some(Range {
6092 start: layout.position_map.text_hitbox.bounds.left(),
6093 end: layout.position_map.text_hitbox.bounds.right(),
6094 }),
6095 CurrentLineHighlight::All => Some(Range {
6096 start: layout.hitbox.left(),
6097 end: layout.hitbox.right(),
6098 }),
6099 CurrentLineHighlight::None => None,
6100 };
6101 if let Some(range) = highlight_h_range {
6102 let active_line_bg = cx.theme().colors().editor_active_line_background;
6103 let bounds = Bounds {
6104 origin: point(
6105 range.start,
6106 layout.hitbox.origin.y
6107 + Pixels::from(
6108 (start_row.as_f64() - scroll_top)
6109 * ScrollPixelOffset::from(
6110 layout.position_map.line_height,
6111 ),
6112 ),
6113 ),
6114 size: size(
6115 range.end - range.start,
6116 layout.position_map.line_height
6117 * (end_row - start_row.0 + 1) as f32,
6118 ),
6119 };
6120 window.paint_quad(fill(bounds, active_line_bg));
6121 }
6122 }
6123 }
6124
6125 let mut paint_highlight = |highlight_row_start: DisplayRow,
6126 highlight_row_end: DisplayRow,
6127 highlight: crate::LineHighlight,
6128 edges| {
6129 let mut origin_x = layout.hitbox.left();
6130 let mut width = layout.hitbox.size.width;
6131 if !highlight.include_gutter {
6132 origin_x += layout.gutter_hitbox.size.width;
6133 width -= layout.gutter_hitbox.size.width;
6134 }
6135
6136 let origin = point(
6137 origin_x,
6138 layout.hitbox.origin.y
6139 + Pixels::from(
6140 (highlight_row_start.as_f64() - scroll_top)
6141 * ScrollPixelOffset::from(layout.position_map.line_height),
6142 ),
6143 );
6144 let size = size(
6145 width,
6146 layout.position_map.line_height
6147 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
6148 );
6149 let mut quad = fill(Bounds { origin, size }, highlight.background);
6150 if let Some(border_color) = highlight.border {
6151 quad.border_color = border_color;
6152 quad.border_widths = edges
6153 }
6154 window.paint_quad(quad);
6155 };
6156
6157 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
6158 None;
6159 for (&new_row, &new_background) in &layout.highlighted_rows {
6160 match &mut current_paint {
6161 &mut Some((current_background, ref mut current_range, mut edges)) => {
6162 let new_range_started = current_background != new_background
6163 || current_range.end.next_row() != new_row;
6164 if new_range_started {
6165 if current_range.end.next_row() == new_row {
6166 edges.bottom = px(0.);
6167 };
6168 paint_highlight(
6169 current_range.start,
6170 current_range.end,
6171 current_background,
6172 edges,
6173 );
6174 let edges = Edges {
6175 top: if current_range.end.next_row() != new_row {
6176 px(1.)
6177 } else {
6178 px(0.)
6179 },
6180 bottom: px(1.),
6181 ..Default::default()
6182 };
6183 current_paint = Some((new_background, new_row..new_row, edges));
6184 continue;
6185 } else {
6186 current_range.end = current_range.end.next_row();
6187 }
6188 }
6189 None => {
6190 let edges = Edges {
6191 top: px(1.),
6192 bottom: px(1.),
6193 ..Default::default()
6194 };
6195 current_paint = Some((new_background, new_row..new_row, edges))
6196 }
6197 };
6198 }
6199 if let Some((color, range, edges)) = current_paint {
6200 paint_highlight(range.start, range.end, color, edges);
6201 }
6202
6203 for (guide_x, active) in layout.wrap_guides.iter() {
6204 let color = if *active {
6205 cx.theme().colors().editor_active_wrap_guide
6206 } else {
6207 cx.theme().colors().editor_wrap_guide
6208 };
6209 window.paint_quad(fill(
6210 Bounds {
6211 origin: point(*guide_x, layout.position_map.text_hitbox.origin.y),
6212 size: size(px(1.), layout.position_map.text_hitbox.size.height),
6213 },
6214 color,
6215 ));
6216 }
6217 }
6218 })
6219 }
6220
6221 fn paint_indent_guides(
6222 &mut self,
6223 layout: &mut EditorLayout,
6224 window: &mut Window,
6225 cx: &mut App,
6226 ) {
6227 let Some(indent_guides) = &layout.indent_guides else {
6228 return;
6229 };
6230
6231 let faded_color = |color: Hsla, alpha: f32| {
6232 let mut faded = color;
6233 faded.a = alpha;
6234 faded
6235 };
6236
6237 for indent_guide in indent_guides {
6238 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
6239 let settings = &indent_guide.settings;
6240
6241 // TODO fixed for now, expose them through themes later
6242 const INDENT_AWARE_ALPHA: f32 = 0.2;
6243 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
6244 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
6245 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
6246
6247 let line_color = match (settings.coloring, indent_guide.active) {
6248 (IndentGuideColoring::Disabled, _) => None,
6249 (IndentGuideColoring::Fixed, false) => {
6250 Some(cx.theme().colors().editor_indent_guide)
6251 }
6252 (IndentGuideColoring::Fixed, true) => {
6253 Some(cx.theme().colors().editor_indent_guide_active)
6254 }
6255 (IndentGuideColoring::IndentAware, false) => {
6256 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
6257 }
6258 (IndentGuideColoring::IndentAware, true) => {
6259 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
6260 }
6261 };
6262
6263 let background_color = match (settings.background_coloring, indent_guide.active) {
6264 (IndentGuideBackgroundColoring::Disabled, _) => None,
6265 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
6266 indent_accent_colors,
6267 INDENT_AWARE_BACKGROUND_ALPHA,
6268 )),
6269 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
6270 indent_accent_colors,
6271 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
6272 )),
6273 };
6274
6275 let requested_line_width = if indent_guide.active {
6276 settings.active_line_width
6277 } else {
6278 settings.line_width
6279 }
6280 .clamp(1, 10);
6281 let mut line_indicator_width = 0.;
6282 if let Some(color) = line_color {
6283 window.paint_quad(fill(
6284 Bounds {
6285 origin: indent_guide.origin,
6286 size: size(px(requested_line_width as f32), indent_guide.length),
6287 },
6288 color,
6289 ));
6290 line_indicator_width = requested_line_width as f32;
6291 }
6292
6293 if let Some(color) = background_color {
6294 let width = indent_guide.single_indent_width - px(line_indicator_width);
6295 window.paint_quad(fill(
6296 Bounds {
6297 origin: point(
6298 indent_guide.origin.x + px(line_indicator_width),
6299 indent_guide.origin.y,
6300 ),
6301 size: size(width, indent_guide.length),
6302 },
6303 color,
6304 ));
6305 }
6306 }
6307 }
6308
6309 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6310 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
6311
6312 let line_height = layout.position_map.line_height;
6313 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
6314
6315 for line_layout in layout.line_numbers.values() {
6316 for LineNumberSegment {
6317 shaped_line,
6318 hitbox,
6319 } in &line_layout.segments
6320 {
6321 let Some(hitbox) = hitbox else {
6322 continue;
6323 };
6324
6325 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
6326 let color = cx.theme().colors().editor_hover_line_number;
6327
6328 let line = self.shape_line_number(shaped_line.text.clone(), color, window);
6329 line.paint(
6330 hitbox.origin,
6331 line_height,
6332 TextAlign::Left,
6333 None,
6334 window,
6335 cx,
6336 )
6337 .log_err()
6338 } else {
6339 shaped_line
6340 .paint(
6341 hitbox.origin,
6342 line_height,
6343 TextAlign::Left,
6344 None,
6345 window,
6346 cx,
6347 )
6348 .log_err()
6349 }) else {
6350 continue;
6351 };
6352
6353 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
6354 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
6355 if is_singleton {
6356 window.set_cursor_style(CursorStyle::IBeam, hitbox);
6357 } else {
6358 window.set_cursor_style(CursorStyle::PointingHand, hitbox);
6359 }
6360 }
6361 }
6362 }
6363
6364 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6365 if layout.display_hunks.is_empty() {
6366 return;
6367 }
6368
6369 let line_height = layout.position_map.line_height;
6370 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6371 for (hunk, hitbox) in &layout.display_hunks {
6372 let hunk_to_paint = match hunk {
6373 DisplayDiffHunk::Folded { .. } => {
6374 let hunk_bounds = Self::diff_hunk_bounds(
6375 &layout.position_map.snapshot,
6376 line_height,
6377 layout.gutter_hitbox.bounds,
6378 hunk,
6379 );
6380 Some((
6381 hunk_bounds,
6382 cx.theme().colors().version_control_modified,
6383 Corners::all(px(0.)),
6384 DiffHunkStatus::modified_none(),
6385 ))
6386 }
6387 DisplayDiffHunk::Unfolded {
6388 status,
6389 display_row_range,
6390 ..
6391 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
6392 DiffHunkStatusKind::Added => (
6393 hunk_hitbox.bounds,
6394 cx.theme().colors().version_control_added,
6395 Corners::all(px(0.)),
6396 *status,
6397 ),
6398 DiffHunkStatusKind::Modified => (
6399 hunk_hitbox.bounds,
6400 cx.theme().colors().version_control_modified,
6401 Corners::all(px(0.)),
6402 *status,
6403 ),
6404 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
6405 hunk_hitbox.bounds,
6406 cx.theme().colors().version_control_deleted,
6407 Corners::all(px(0.)),
6408 *status,
6409 ),
6410 DiffHunkStatusKind::Deleted => (
6411 Bounds::new(
6412 point(
6413 hunk_hitbox.origin.x - hunk_hitbox.size.width,
6414 hunk_hitbox.origin.y,
6415 ),
6416 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
6417 ),
6418 cx.theme().colors().version_control_deleted,
6419 Corners::all(1. * line_height),
6420 *status,
6421 ),
6422 }),
6423 };
6424
6425 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
6426 // Flatten the background color with the editor color to prevent
6427 // elements below transparent hunks from showing through
6428 let flattened_background_color = cx
6429 .theme()
6430 .colors()
6431 .editor_background
6432 .blend(background_color);
6433
6434 if !Self::diff_hunk_hollow(status, cx) {
6435 window.paint_quad(quad(
6436 hunk_bounds,
6437 corner_radii,
6438 flattened_background_color,
6439 Edges::default(),
6440 transparent_black(),
6441 BorderStyle::default(),
6442 ));
6443 } else {
6444 let flattened_unstaged_background_color = cx
6445 .theme()
6446 .colors()
6447 .editor_background
6448 .blend(background_color.opacity(0.3));
6449
6450 window.paint_quad(quad(
6451 hunk_bounds,
6452 corner_radii,
6453 flattened_unstaged_background_color,
6454 Edges::all(px(1.0)),
6455 flattened_background_color,
6456 BorderStyle::Solid,
6457 ));
6458 }
6459 }
6460 }
6461 });
6462 }
6463
6464 fn gutter_strip_width(line_height: Pixels) -> Pixels {
6465 (0.275 * line_height).floor()
6466 }
6467
6468 fn diff_hunk_bounds(
6469 snapshot: &EditorSnapshot,
6470 line_height: Pixels,
6471 gutter_bounds: Bounds<Pixels>,
6472 hunk: &DisplayDiffHunk,
6473 ) -> Bounds<Pixels> {
6474 let scroll_position = snapshot.scroll_position();
6475 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
6476 let gutter_strip_width = Self::gutter_strip_width(line_height);
6477
6478 match hunk {
6479 DisplayDiffHunk::Folded { display_row, .. } => {
6480 let start_y = (display_row.as_f64() * ScrollPixelOffset::from(line_height)
6481 - scroll_top)
6482 .into();
6483 let end_y = start_y + line_height;
6484 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6485 let highlight_size = size(gutter_strip_width, end_y - start_y);
6486 Bounds::new(highlight_origin, highlight_size)
6487 }
6488 DisplayDiffHunk::Unfolded {
6489 display_row_range,
6490 status,
6491 ..
6492 } => {
6493 if status.is_deleted() && display_row_range.is_empty() {
6494 let row = display_row_range.start;
6495
6496 let offset = ScrollPixelOffset::from(line_height / 2.);
6497 let start_y =
6498 (row.as_f64() * ScrollPixelOffset::from(line_height) - offset - scroll_top)
6499 .into();
6500 let end_y = start_y + line_height;
6501
6502 let width = (0.35 * line_height).floor();
6503 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6504 let highlight_size = size(width, end_y - start_y);
6505 Bounds::new(highlight_origin, highlight_size)
6506 } else {
6507 let start_row = display_row_range.start;
6508 let end_row = display_row_range.end;
6509 // If we're in a multibuffer, row range span might include an
6510 // excerpt header, so if we were to draw the marker straight away,
6511 // the hunk might include the rows of that header.
6512 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
6513 // Instead, we simply check whether the range we're dealing with includes
6514 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
6515 let end_row_in_current_excerpt = snapshot
6516 .blocks_in_range(start_row..end_row)
6517 .find_map(|(start_row, block)| {
6518 if matches!(
6519 block,
6520 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
6521 ) {
6522 Some(start_row)
6523 } else {
6524 None
6525 }
6526 })
6527 .unwrap_or(end_row);
6528
6529 let start_y = (start_row.as_f64() * ScrollPixelOffset::from(line_height)
6530 - scroll_top)
6531 .into();
6532 let end_y = Pixels::from(
6533 end_row_in_current_excerpt.as_f64() * ScrollPixelOffset::from(line_height)
6534 - scroll_top,
6535 );
6536
6537 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6538 let highlight_size = size(gutter_strip_width, end_y - start_y);
6539 Bounds::new(highlight_origin, highlight_size)
6540 }
6541 }
6542 }
6543 }
6544
6545 fn paint_gutter_indicators(
6546 &self,
6547 layout: &mut EditorLayout,
6548 window: &mut Window,
6549 cx: &mut App,
6550 ) {
6551 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6552 window.with_element_namespace("crease_toggles", |window| {
6553 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
6554 crease_toggle.paint(window, cx);
6555 }
6556 });
6557
6558 window.with_element_namespace("expand_toggles", |window| {
6559 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
6560 expand_toggle.paint(window, cx);
6561 }
6562 });
6563
6564 for breakpoint in layout.breakpoints.iter_mut() {
6565 breakpoint.paint(window, cx);
6566 }
6567
6568 for test_indicator in layout.test_indicators.iter_mut() {
6569 test_indicator.paint(window, cx);
6570 }
6571
6572 if let Some(diff_review_button) = layout.diff_review_button.as_mut() {
6573 diff_review_button.paint(window, cx);
6574 }
6575 });
6576 }
6577
6578 fn paint_gutter_highlights(
6579 &self,
6580 layout: &mut EditorLayout,
6581 window: &mut Window,
6582 cx: &mut App,
6583 ) {
6584 for (_, hunk_hitbox) in &layout.display_hunks {
6585 if let Some(hunk_hitbox) = hunk_hitbox
6586 && !self
6587 .editor
6588 .read(cx)
6589 .buffer()
6590 .read(cx)
6591 .all_diff_hunks_expanded()
6592 {
6593 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
6594 }
6595 }
6596
6597 let show_git_gutter = layout
6598 .position_map
6599 .snapshot
6600 .show_git_diff_gutter
6601 .unwrap_or_else(|| {
6602 matches!(
6603 ProjectSettings::get_global(cx).git.git_gutter,
6604 GitGutterSetting::TrackedFiles
6605 )
6606 });
6607 if show_git_gutter {
6608 Self::paint_gutter_diff_hunks(layout, window, cx)
6609 }
6610
6611 let highlight_width = 0.275 * layout.position_map.line_height;
6612 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
6613 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6614 for (range, color) in &layout.highlighted_gutter_ranges {
6615 let start_row = if range.start.row() < layout.visible_display_row_range.start {
6616 layout.visible_display_row_range.start - DisplayRow(1)
6617 } else {
6618 range.start.row()
6619 };
6620 let end_row = if range.end.row() > layout.visible_display_row_range.end {
6621 layout.visible_display_row_range.end + DisplayRow(1)
6622 } else {
6623 range.end.row()
6624 };
6625
6626 let start_y = layout.gutter_hitbox.top()
6627 + Pixels::from(
6628 start_row.0 as f64
6629 * ScrollPixelOffset::from(layout.position_map.line_height)
6630 - layout.position_map.scroll_pixel_position.y,
6631 );
6632 let end_y = layout.gutter_hitbox.top()
6633 + Pixels::from(
6634 (end_row.0 + 1) as f64
6635 * ScrollPixelOffset::from(layout.position_map.line_height)
6636 - layout.position_map.scroll_pixel_position.y,
6637 );
6638 let bounds = Bounds::from_corners(
6639 point(layout.gutter_hitbox.left(), start_y),
6640 point(layout.gutter_hitbox.left() + highlight_width, end_y),
6641 );
6642 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
6643 }
6644 });
6645 }
6646
6647 fn paint_blamed_display_rows(
6648 &self,
6649 layout: &mut EditorLayout,
6650 window: &mut Window,
6651 cx: &mut App,
6652 ) {
6653 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
6654 return;
6655 };
6656
6657 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6658 for mut blame_element in blamed_display_rows.into_iter() {
6659 blame_element.paint(window, cx);
6660 }
6661 })
6662 }
6663
6664 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6665 window.with_content_mask(
6666 Some(ContentMask {
6667 bounds: layout.position_map.text_hitbox.bounds,
6668 }),
6669 |window| {
6670 let editor = self.editor.read(cx);
6671 if editor.mouse_cursor_hidden {
6672 window.set_window_cursor_style(CursorStyle::None);
6673 } else if let SelectionDragState::ReadyToDrag {
6674 mouse_down_time, ..
6675 } = &editor.selection_drag_state
6676 {
6677 let drag_and_drop_delay = Duration::from_millis(
6678 EditorSettings::get_global(cx)
6679 .drag_and_drop_selection
6680 .delay
6681 .0,
6682 );
6683 if mouse_down_time.elapsed() >= drag_and_drop_delay {
6684 window.set_cursor_style(
6685 CursorStyle::DragCopy,
6686 &layout.position_map.text_hitbox,
6687 );
6688 }
6689 } else if matches!(
6690 editor.selection_drag_state,
6691 SelectionDragState::Dragging { .. }
6692 ) {
6693 window
6694 .set_cursor_style(CursorStyle::DragCopy, &layout.position_map.text_hitbox);
6695 } else if editor
6696 .hovered_link_state
6697 .as_ref()
6698 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
6699 {
6700 window.set_cursor_style(
6701 CursorStyle::PointingHand,
6702 &layout.position_map.text_hitbox,
6703 );
6704 } else {
6705 window.set_cursor_style(CursorStyle::IBeam, &layout.position_map.text_hitbox);
6706 };
6707
6708 self.paint_lines_background(layout, window, cx);
6709 let invisible_display_ranges = self.paint_highlights(layout, window, cx);
6710 self.paint_document_colors(layout, window);
6711 self.paint_lines(&invisible_display_ranges, layout, window, cx);
6712 self.paint_redactions(layout, window);
6713 self.paint_cursors(layout, window, cx);
6714 self.paint_inline_diagnostics(layout, window, cx);
6715 self.paint_inline_blame(layout, window, cx);
6716 self.paint_inline_code_actions(layout, window, cx);
6717 self.paint_diff_hunk_controls(layout, window, cx);
6718 window.with_element_namespace("crease_trailers", |window| {
6719 for trailer in layout.crease_trailers.iter_mut().flatten() {
6720 trailer.element.paint(window, cx);
6721 }
6722 });
6723 },
6724 )
6725 }
6726
6727 fn paint_highlights(
6728 &mut self,
6729 layout: &mut EditorLayout,
6730 window: &mut Window,
6731 cx: &mut App,
6732 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
6733 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6734 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
6735 let line_end_overshoot = 0.15 * layout.position_map.line_height;
6736 for (range, color) in &layout.highlighted_ranges {
6737 self.paint_highlighted_range(
6738 range.clone(),
6739 true,
6740 *color,
6741 Pixels::ZERO,
6742 line_end_overshoot,
6743 layout,
6744 window,
6745 );
6746 }
6747
6748 let corner_radius = if EditorSettings::get_global(cx).rounded_selection {
6749 0.15 * layout.position_map.line_height
6750 } else {
6751 Pixels::ZERO
6752 };
6753
6754 for (player_color, selections) in &layout.selections {
6755 for selection in selections.iter() {
6756 self.paint_highlighted_range(
6757 selection.range.clone(),
6758 true,
6759 player_color.selection,
6760 corner_radius,
6761 corner_radius * 2.,
6762 layout,
6763 window,
6764 );
6765
6766 if selection.is_local && !selection.range.is_empty() {
6767 invisible_display_ranges.push(selection.range.clone());
6768 }
6769 }
6770 }
6771 invisible_display_ranges
6772 })
6773 }
6774
6775 fn paint_lines(
6776 &mut self,
6777 invisible_display_ranges: &[Range<DisplayPoint>],
6778 layout: &mut EditorLayout,
6779 window: &mut Window,
6780 cx: &mut App,
6781 ) {
6782 let whitespace_setting = self
6783 .editor
6784 .read(cx)
6785 .buffer
6786 .read(cx)
6787 .language_settings(cx)
6788 .show_whitespaces;
6789
6790 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6791 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6792 line_with_invisibles.draw(
6793 layout,
6794 row,
6795 layout.content_origin,
6796 whitespace_setting,
6797 invisible_display_ranges,
6798 window,
6799 cx,
6800 )
6801 }
6802
6803 for line_element in &mut layout.line_elements {
6804 line_element.paint(window, cx);
6805 }
6806 }
6807
6808 fn paint_sticky_headers(
6809 &mut self,
6810 layout: &mut EditorLayout,
6811 window: &mut Window,
6812 cx: &mut App,
6813 ) {
6814 let Some(mut sticky_headers) = layout.sticky_headers.take() else {
6815 return;
6816 };
6817
6818 if sticky_headers.lines.is_empty() {
6819 layout.sticky_headers = Some(sticky_headers);
6820 return;
6821 }
6822
6823 let whitespace_setting = self
6824 .editor
6825 .read(cx)
6826 .buffer
6827 .read(cx)
6828 .language_settings(cx)
6829 .show_whitespaces;
6830 sticky_headers.paint(layout, whitespace_setting, window, cx);
6831
6832 let sticky_header_hitboxes: Vec<Hitbox> = sticky_headers
6833 .lines
6834 .iter()
6835 .map(|line| line.hitbox.clone())
6836 .collect();
6837 let hovered_hitbox = sticky_header_hitboxes
6838 .iter()
6839 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6840
6841 window.on_mouse_event(move |_: &MouseMoveEvent, phase, window, _cx| {
6842 if !phase.bubble() {
6843 return;
6844 }
6845
6846 let current_hover = sticky_header_hitboxes
6847 .iter()
6848 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6849 if hovered_hitbox != current_hover {
6850 window.refresh();
6851 }
6852 });
6853
6854 for (line_index, line) in sticky_headers.lines.iter().enumerate() {
6855 let editor = self.editor.clone();
6856 let hitbox = line.hitbox.clone();
6857 let target_anchor = line.target_anchor;
6858 window.on_mouse_event(move |event: &MouseDownEvent, phase, window, cx| {
6859 if !phase.bubble() {
6860 return;
6861 }
6862
6863 if event.button == MouseButton::Left && hitbox.is_hovered(window) {
6864 editor.update(cx, |editor, cx| {
6865 editor.change_selections(
6866 SelectionEffects::scroll(Autoscroll::top_relative(line_index)),
6867 window,
6868 cx,
6869 |selections| selections.select_ranges([target_anchor..target_anchor]),
6870 );
6871 cx.stop_propagation();
6872 });
6873 }
6874 });
6875 }
6876
6877 let text_bounds = layout.position_map.text_hitbox.bounds;
6878 let border_top = text_bounds.top()
6879 + sticky_headers.lines.last().unwrap().offset
6880 + layout.position_map.line_height;
6881 let separator_height = px(1.);
6882 let border_bounds = Bounds::from_corners(
6883 point(layout.gutter_hitbox.bounds.left(), border_top),
6884 point(text_bounds.right(), border_top + separator_height),
6885 );
6886 window.paint_quad(fill(border_bounds, cx.theme().colors().border_variant));
6887
6888 layout.sticky_headers = Some(sticky_headers);
6889 }
6890
6891 fn paint_lines_background(
6892 &mut self,
6893 layout: &mut EditorLayout,
6894 window: &mut Window,
6895 cx: &mut App,
6896 ) {
6897 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6898 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6899 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
6900 }
6901 }
6902
6903 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
6904 if layout.redacted_ranges.is_empty() {
6905 return;
6906 }
6907
6908 let line_end_overshoot = layout.line_end_overshoot();
6909
6910 // A softer than perfect black
6911 let redaction_color = gpui::rgb(0x0e1111);
6912
6913 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6914 for range in layout.redacted_ranges.iter() {
6915 self.paint_highlighted_range(
6916 range.clone(),
6917 true,
6918 redaction_color.into(),
6919 Pixels::ZERO,
6920 line_end_overshoot,
6921 layout,
6922 window,
6923 );
6924 }
6925 });
6926 }
6927
6928 fn paint_document_colors(&self, layout: &mut EditorLayout, window: &mut Window) {
6929 let Some((colors_render_mode, image_colors)) = &layout.document_colors else {
6930 return;
6931 };
6932 if image_colors.is_empty()
6933 || colors_render_mode == &DocumentColorsRenderMode::None
6934 || colors_render_mode == &DocumentColorsRenderMode::Inlay
6935 {
6936 return;
6937 }
6938
6939 let line_end_overshoot = layout.line_end_overshoot();
6940
6941 for (range, color) in image_colors {
6942 match colors_render_mode {
6943 DocumentColorsRenderMode::Inlay | DocumentColorsRenderMode::None => return,
6944 DocumentColorsRenderMode::Background => {
6945 self.paint_highlighted_range(
6946 range.clone(),
6947 true,
6948 *color,
6949 Pixels::ZERO,
6950 line_end_overshoot,
6951 layout,
6952 window,
6953 );
6954 }
6955 DocumentColorsRenderMode::Border => {
6956 self.paint_highlighted_range(
6957 range.clone(),
6958 false,
6959 *color,
6960 Pixels::ZERO,
6961 line_end_overshoot,
6962 layout,
6963 window,
6964 );
6965 }
6966 }
6967 }
6968 }
6969
6970 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6971 for cursor in &mut layout.visible_cursors {
6972 cursor.paint(layout.content_origin, window, cx);
6973 }
6974 }
6975
6976 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6977 let Some(scrollbars_layout) = layout.scrollbars_layout.take() else {
6978 return;
6979 };
6980 let any_scrollbar_dragged = self.editor.read(cx).scroll_manager.any_scrollbar_dragged();
6981
6982 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
6983 let hitbox = &scrollbar_layout.hitbox;
6984 if scrollbars_layout.visible {
6985 let scrollbar_edges = match axis {
6986 ScrollbarAxis::Horizontal => Edges {
6987 top: Pixels::ZERO,
6988 right: Pixels::ZERO,
6989 bottom: Pixels::ZERO,
6990 left: Pixels::ZERO,
6991 },
6992 ScrollbarAxis::Vertical => Edges {
6993 top: Pixels::ZERO,
6994 right: Pixels::ZERO,
6995 bottom: Pixels::ZERO,
6996 left: ScrollbarLayout::BORDER_WIDTH,
6997 },
6998 };
6999
7000 window.paint_layer(hitbox.bounds, |window| {
7001 window.paint_quad(quad(
7002 hitbox.bounds,
7003 Corners::default(),
7004 cx.theme().colors().scrollbar_track_background,
7005 scrollbar_edges,
7006 cx.theme().colors().scrollbar_track_border,
7007 BorderStyle::Solid,
7008 ));
7009
7010 if axis == ScrollbarAxis::Vertical {
7011 let fast_markers =
7012 self.collect_fast_scrollbar_markers(layout, scrollbar_layout, cx);
7013 // Refresh slow scrollbar markers in the background. Below, we
7014 // paint whatever markers have already been computed.
7015 self.refresh_slow_scrollbar_markers(layout, scrollbar_layout, window, cx);
7016
7017 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
7018 for marker in markers.iter().chain(&fast_markers) {
7019 let mut marker = marker.clone();
7020 marker.bounds.origin += hitbox.origin;
7021 window.paint_quad(marker);
7022 }
7023 }
7024
7025 if let Some(thumb_bounds) = scrollbar_layout.thumb_bounds {
7026 let scrollbar_thumb_color = match scrollbar_layout.thumb_state {
7027 ScrollbarThumbState::Dragging => {
7028 cx.theme().colors().scrollbar_thumb_active_background
7029 }
7030 ScrollbarThumbState::Hovered => {
7031 cx.theme().colors().scrollbar_thumb_hover_background
7032 }
7033 ScrollbarThumbState::Idle => {
7034 cx.theme().colors().scrollbar_thumb_background
7035 }
7036 };
7037 window.paint_quad(quad(
7038 thumb_bounds,
7039 Corners::default(),
7040 scrollbar_thumb_color,
7041 scrollbar_edges,
7042 cx.theme().colors().scrollbar_thumb_border,
7043 BorderStyle::Solid,
7044 ));
7045
7046 if any_scrollbar_dragged {
7047 window.set_window_cursor_style(CursorStyle::Arrow);
7048 } else {
7049 window.set_cursor_style(CursorStyle::Arrow, hitbox);
7050 }
7051 }
7052 })
7053 }
7054 }
7055
7056 window.on_mouse_event({
7057 let editor = self.editor.clone();
7058 let scrollbars_layout = scrollbars_layout.clone();
7059
7060 let mut mouse_position = window.mouse_position();
7061 move |event: &MouseMoveEvent, phase, window, cx| {
7062 if phase == DispatchPhase::Capture {
7063 return;
7064 }
7065
7066 editor.update(cx, |editor, cx| {
7067 if let Some((scrollbar_layout, axis)) = event
7068 .pressed_button
7069 .filter(|button| *button == MouseButton::Left)
7070 .and(editor.scroll_manager.dragging_scrollbar_axis())
7071 .and_then(|axis| {
7072 scrollbars_layout
7073 .iter_scrollbars()
7074 .find(|(_, a)| *a == axis)
7075 })
7076 {
7077 let ScrollbarLayout {
7078 hitbox,
7079 text_unit_size,
7080 ..
7081 } = scrollbar_layout;
7082
7083 let old_position = mouse_position.along(axis);
7084 let new_position = event.position.along(axis);
7085 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
7086 .contains(&old_position)
7087 {
7088 let position = editor.scroll_position(cx).apply_along(axis, |p| {
7089 (p + ScrollOffset::from(
7090 (new_position - old_position) / *text_unit_size,
7091 ))
7092 .max(0.)
7093 });
7094 editor.set_scroll_position(position, window, cx);
7095 }
7096
7097 editor.scroll_manager.show_scrollbars(window, cx);
7098 cx.stop_propagation();
7099 } else if let Some((layout, axis)) = scrollbars_layout
7100 .get_hovered_axis(window)
7101 .filter(|_| !event.dragging())
7102 {
7103 if layout.thumb_hovered(&event.position) {
7104 editor
7105 .scroll_manager
7106 .set_hovered_scroll_thumb_axis(axis, cx);
7107 } else {
7108 editor.scroll_manager.reset_scrollbar_state(cx);
7109 }
7110
7111 editor.scroll_manager.show_scrollbars(window, cx);
7112 } else {
7113 editor.scroll_manager.reset_scrollbar_state(cx);
7114 }
7115
7116 mouse_position = event.position;
7117 })
7118 }
7119 });
7120
7121 if any_scrollbar_dragged {
7122 window.on_mouse_event({
7123 let editor = self.editor.clone();
7124 move |_: &MouseUpEvent, phase, window, cx| {
7125 if phase == DispatchPhase::Capture {
7126 return;
7127 }
7128
7129 editor.update(cx, |editor, cx| {
7130 if let Some((_, axis)) = scrollbars_layout.get_hovered_axis(window) {
7131 editor
7132 .scroll_manager
7133 .set_hovered_scroll_thumb_axis(axis, cx);
7134 } else {
7135 editor.scroll_manager.reset_scrollbar_state(cx);
7136 }
7137 cx.stop_propagation();
7138 });
7139 }
7140 });
7141 } else {
7142 window.on_mouse_event({
7143 let editor = self.editor.clone();
7144
7145 move |event: &MouseDownEvent, phase, window, cx| {
7146 if phase == DispatchPhase::Capture {
7147 return;
7148 }
7149 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
7150 else {
7151 return;
7152 };
7153
7154 let ScrollbarLayout {
7155 hitbox,
7156 visible_range,
7157 text_unit_size,
7158 thumb_bounds,
7159 ..
7160 } = scrollbar_layout;
7161
7162 let Some(thumb_bounds) = thumb_bounds else {
7163 return;
7164 };
7165
7166 editor.update(cx, |editor, cx| {
7167 editor
7168 .scroll_manager
7169 .set_dragged_scroll_thumb_axis(axis, cx);
7170
7171 let event_position = event.position.along(axis);
7172
7173 if event_position < thumb_bounds.origin.along(axis)
7174 || thumb_bounds.bottom_right().along(axis) < event_position
7175 {
7176 let center_position = ((event_position - hitbox.origin.along(axis))
7177 / *text_unit_size)
7178 .round() as u32;
7179 let start_position = center_position.saturating_sub(
7180 (visible_range.end - visible_range.start) as u32 / 2,
7181 );
7182
7183 let position = editor
7184 .scroll_position(cx)
7185 .apply_along(axis, |_| start_position as ScrollOffset);
7186
7187 editor.set_scroll_position(position, window, cx);
7188 } else {
7189 editor.scroll_manager.show_scrollbars(window, cx);
7190 }
7191
7192 cx.stop_propagation();
7193 });
7194 }
7195 });
7196 }
7197 }
7198
7199 fn collect_fast_scrollbar_markers(
7200 &self,
7201 layout: &EditorLayout,
7202 scrollbar_layout: &ScrollbarLayout,
7203 cx: &mut App,
7204 ) -> Vec<PaintQuad> {
7205 const LIMIT: usize = 100;
7206 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
7207 return vec![];
7208 }
7209 let cursor_ranges = layout
7210 .cursors
7211 .iter()
7212 .map(|(point, color)| ColoredRange {
7213 start: point.row(),
7214 end: point.row(),
7215 color: *color,
7216 })
7217 .collect_vec();
7218 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
7219 }
7220
7221 fn refresh_slow_scrollbar_markers(
7222 &self,
7223 layout: &EditorLayout,
7224 scrollbar_layout: &ScrollbarLayout,
7225 window: &mut Window,
7226 cx: &mut App,
7227 ) {
7228 self.editor.update(cx, |editor, cx| {
7229 if editor.buffer_kind(cx) != ItemBufferKind::Singleton
7230 || !editor
7231 .scrollbar_marker_state
7232 .should_refresh(scrollbar_layout.hitbox.size)
7233 {
7234 return;
7235 }
7236
7237 let scrollbar_layout = scrollbar_layout.clone();
7238 let background_highlights = editor.background_highlights.clone();
7239 let snapshot = layout.position_map.snapshot.clone();
7240 let theme = cx.theme().clone();
7241 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
7242
7243 editor.scrollbar_marker_state.dirty = false;
7244 editor.scrollbar_marker_state.pending_refresh =
7245 Some(cx.spawn_in(window, async move |editor, cx| {
7246 let scrollbar_size = scrollbar_layout.hitbox.size;
7247 let scrollbar_markers = cx
7248 .background_spawn(async move {
7249 let max_point = snapshot.display_snapshot.buffer_snapshot().max_point();
7250 let mut marker_quads = Vec::new();
7251 if scrollbar_settings.git_diff {
7252 let marker_row_ranges =
7253 snapshot.buffer_snapshot().diff_hunks().map(|hunk| {
7254 let start_display_row =
7255 MultiBufferPoint::new(hunk.row_range.start.0, 0)
7256 .to_display_point(&snapshot.display_snapshot)
7257 .row();
7258 let mut end_display_row =
7259 MultiBufferPoint::new(hunk.row_range.end.0, 0)
7260 .to_display_point(&snapshot.display_snapshot)
7261 .row();
7262 if end_display_row != start_display_row {
7263 end_display_row.0 -= 1;
7264 }
7265 let color = match &hunk.status().kind {
7266 DiffHunkStatusKind::Added => {
7267 theme.colors().version_control_added
7268 }
7269 DiffHunkStatusKind::Modified => {
7270 theme.colors().version_control_modified
7271 }
7272 DiffHunkStatusKind::Deleted => {
7273 theme.colors().version_control_deleted
7274 }
7275 };
7276 ColoredRange {
7277 start: start_display_row,
7278 end: end_display_row,
7279 color,
7280 }
7281 });
7282
7283 marker_quads.extend(
7284 scrollbar_layout
7285 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
7286 );
7287 }
7288
7289 for (background_highlight_id, (_, background_ranges)) in
7290 background_highlights.iter()
7291 {
7292 let is_search_highlights = *background_highlight_id
7293 == HighlightKey::Type(TypeId::of::<BufferSearchHighlights>());
7294 let is_text_highlights = *background_highlight_id
7295 == HighlightKey::Type(TypeId::of::<SelectedTextHighlight>());
7296 let is_symbol_occurrences = *background_highlight_id
7297 == HighlightKey::Type(TypeId::of::<DocumentHighlightRead>())
7298 || *background_highlight_id
7299 == HighlightKey::Type(
7300 TypeId::of::<DocumentHighlightWrite>(),
7301 );
7302 if (is_search_highlights && scrollbar_settings.search_results)
7303 || (is_text_highlights && scrollbar_settings.selected_text)
7304 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
7305 {
7306 let mut color = theme.status().info;
7307 if is_symbol_occurrences {
7308 color.fade_out(0.5);
7309 }
7310 let marker_row_ranges = background_ranges.iter().map(|range| {
7311 let display_start = range
7312 .start
7313 .to_display_point(&snapshot.display_snapshot);
7314 let display_end =
7315 range.end.to_display_point(&snapshot.display_snapshot);
7316 ColoredRange {
7317 start: display_start.row(),
7318 end: display_end.row(),
7319 color,
7320 }
7321 });
7322 marker_quads.extend(
7323 scrollbar_layout
7324 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
7325 );
7326 }
7327 }
7328
7329 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
7330 let diagnostics = snapshot
7331 .buffer_snapshot()
7332 .diagnostics_in_range::<Point>(Point::zero()..max_point)
7333 // Don't show diagnostics the user doesn't care about
7334 .filter(|diagnostic| {
7335 match (
7336 scrollbar_settings.diagnostics,
7337 diagnostic.diagnostic.severity,
7338 ) {
7339 (ScrollbarDiagnostics::All, _) => true,
7340 (
7341 ScrollbarDiagnostics::Error,
7342 lsp::DiagnosticSeverity::ERROR,
7343 ) => true,
7344 (
7345 ScrollbarDiagnostics::Warning,
7346 lsp::DiagnosticSeverity::ERROR
7347 | lsp::DiagnosticSeverity::WARNING,
7348 ) => true,
7349 (
7350 ScrollbarDiagnostics::Information,
7351 lsp::DiagnosticSeverity::ERROR
7352 | lsp::DiagnosticSeverity::WARNING
7353 | lsp::DiagnosticSeverity::INFORMATION,
7354 ) => true,
7355 (_, _) => false,
7356 }
7357 })
7358 // We want to sort by severity, in order to paint the most severe diagnostics last.
7359 .sorted_by_key(|diagnostic| {
7360 std::cmp::Reverse(diagnostic.diagnostic.severity)
7361 });
7362
7363 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
7364 let start_display = diagnostic
7365 .range
7366 .start
7367 .to_display_point(&snapshot.display_snapshot);
7368 let end_display = diagnostic
7369 .range
7370 .end
7371 .to_display_point(&snapshot.display_snapshot);
7372 let color = match diagnostic.diagnostic.severity {
7373 lsp::DiagnosticSeverity::ERROR => theme.status().error,
7374 lsp::DiagnosticSeverity::WARNING => theme.status().warning,
7375 lsp::DiagnosticSeverity::INFORMATION => theme.status().info,
7376 _ => theme.status().hint,
7377 };
7378 ColoredRange {
7379 start: start_display.row(),
7380 end: end_display.row(),
7381 color,
7382 }
7383 });
7384 marker_quads.extend(
7385 scrollbar_layout
7386 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
7387 );
7388 }
7389
7390 Arc::from(marker_quads)
7391 })
7392 .await;
7393
7394 editor.update(cx, |editor, cx| {
7395 editor.scrollbar_marker_state.markers = scrollbar_markers;
7396 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
7397 editor.scrollbar_marker_state.pending_refresh = None;
7398 cx.notify();
7399 })?;
7400
7401 Ok(())
7402 }));
7403 });
7404 }
7405
7406 fn paint_highlighted_range(
7407 &self,
7408 range: Range<DisplayPoint>,
7409 fill: bool,
7410 color: Hsla,
7411 corner_radius: Pixels,
7412 line_end_overshoot: Pixels,
7413 layout: &EditorLayout,
7414 window: &mut Window,
7415 ) {
7416 let start_row = layout.visible_display_row_range.start;
7417 let end_row = layout.visible_display_row_range.end;
7418 if range.start != range.end {
7419 let row_range = if range.end.column() == 0 {
7420 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
7421 } else {
7422 cmp::max(range.start.row(), start_row)
7423 ..cmp::min(range.end.row().next_row(), end_row)
7424 };
7425
7426 let highlighted_range = HighlightedRange {
7427 color,
7428 line_height: layout.position_map.line_height,
7429 corner_radius,
7430 start_y: layout.content_origin.y
7431 + Pixels::from(
7432 (row_range.start.as_f64() - layout.position_map.scroll_position.y)
7433 * ScrollOffset::from(layout.position_map.line_height),
7434 ),
7435 lines: row_range
7436 .iter_rows()
7437 .map(|row| {
7438 let line_layout =
7439 &layout.position_map.line_layouts[row.minus(start_row) as usize];
7440 let alignment_offset =
7441 line_layout.alignment_offset(layout.text_align, layout.content_width);
7442 HighlightedRangeLine {
7443 start_x: if row == range.start.row() {
7444 layout.content_origin.x
7445 + Pixels::from(
7446 ScrollPixelOffset::from(
7447 line_layout.x_for_index(range.start.column() as usize)
7448 + alignment_offset,
7449 ) - layout.position_map.scroll_pixel_position.x,
7450 )
7451 } else {
7452 layout.content_origin.x + alignment_offset
7453 - Pixels::from(layout.position_map.scroll_pixel_position.x)
7454 },
7455 end_x: if row == range.end.row() {
7456 layout.content_origin.x
7457 + Pixels::from(
7458 ScrollPixelOffset::from(
7459 line_layout.x_for_index(range.end.column() as usize)
7460 + alignment_offset,
7461 ) - layout.position_map.scroll_pixel_position.x,
7462 )
7463 } else {
7464 Pixels::from(
7465 ScrollPixelOffset::from(
7466 layout.content_origin.x
7467 + line_layout.width
7468 + alignment_offset
7469 + line_end_overshoot,
7470 ) - layout.position_map.scroll_pixel_position.x,
7471 )
7472 },
7473 }
7474 })
7475 .collect(),
7476 };
7477
7478 highlighted_range.paint(fill, layout.position_map.text_hitbox.bounds, window);
7479 }
7480 }
7481
7482 fn paint_inline_diagnostics(
7483 &mut self,
7484 layout: &mut EditorLayout,
7485 window: &mut Window,
7486 cx: &mut App,
7487 ) {
7488 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
7489 inline_diagnostic.1.paint(window, cx);
7490 }
7491 }
7492
7493 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7494 if let Some(mut blame_layout) = layout.inline_blame_layout.take() {
7495 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7496 blame_layout.element.paint(window, cx);
7497 })
7498 }
7499 }
7500
7501 fn paint_inline_code_actions(
7502 &mut self,
7503 layout: &mut EditorLayout,
7504 window: &mut Window,
7505 cx: &mut App,
7506 ) {
7507 if let Some(mut inline_code_actions) = layout.inline_code_actions.take() {
7508 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7509 inline_code_actions.paint(window, cx);
7510 })
7511 }
7512 }
7513
7514 fn paint_diff_hunk_controls(
7515 &mut self,
7516 layout: &mut EditorLayout,
7517 window: &mut Window,
7518 cx: &mut App,
7519 ) {
7520 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
7521 diff_hunk_control.paint(window, cx);
7522 }
7523 }
7524
7525 fn paint_minimap(&self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7526 if let Some(mut layout) = layout.minimap.take() {
7527 let minimap_hitbox = layout.thumb_layout.hitbox.clone();
7528 let dragging_minimap = self.editor.read(cx).scroll_manager.is_dragging_minimap();
7529
7530 window.paint_layer(layout.thumb_layout.hitbox.bounds, |window| {
7531 window.with_element_namespace("minimap", |window| {
7532 layout.minimap.paint(window, cx);
7533 if let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds {
7534 let minimap_thumb_color = match layout.thumb_layout.thumb_state {
7535 ScrollbarThumbState::Idle => {
7536 cx.theme().colors().minimap_thumb_background
7537 }
7538 ScrollbarThumbState::Hovered => {
7539 cx.theme().colors().minimap_thumb_hover_background
7540 }
7541 ScrollbarThumbState::Dragging => {
7542 cx.theme().colors().minimap_thumb_active_background
7543 }
7544 };
7545 let minimap_thumb_border = match layout.thumb_border_style {
7546 MinimapThumbBorder::Full => Edges::all(ScrollbarLayout::BORDER_WIDTH),
7547 MinimapThumbBorder::LeftOnly => Edges {
7548 left: ScrollbarLayout::BORDER_WIDTH,
7549 ..Default::default()
7550 },
7551 MinimapThumbBorder::LeftOpen => Edges {
7552 right: ScrollbarLayout::BORDER_WIDTH,
7553 top: ScrollbarLayout::BORDER_WIDTH,
7554 bottom: ScrollbarLayout::BORDER_WIDTH,
7555 ..Default::default()
7556 },
7557 MinimapThumbBorder::RightOpen => Edges {
7558 left: ScrollbarLayout::BORDER_WIDTH,
7559 top: ScrollbarLayout::BORDER_WIDTH,
7560 bottom: ScrollbarLayout::BORDER_WIDTH,
7561 ..Default::default()
7562 },
7563 MinimapThumbBorder::None => Default::default(),
7564 };
7565
7566 window.paint_layer(minimap_hitbox.bounds, |window| {
7567 window.paint_quad(quad(
7568 thumb_bounds,
7569 Corners::default(),
7570 minimap_thumb_color,
7571 minimap_thumb_border,
7572 cx.theme().colors().minimap_thumb_border,
7573 BorderStyle::Solid,
7574 ));
7575 });
7576 }
7577 });
7578 });
7579
7580 if dragging_minimap {
7581 window.set_window_cursor_style(CursorStyle::Arrow);
7582 } else {
7583 window.set_cursor_style(CursorStyle::Arrow, &minimap_hitbox);
7584 }
7585
7586 let minimap_axis = ScrollbarAxis::Vertical;
7587 let pixels_per_line = Pixels::from(
7588 ScrollPixelOffset::from(minimap_hitbox.size.height) / layout.max_scroll_top,
7589 )
7590 .min(layout.minimap_line_height);
7591
7592 let mut mouse_position = window.mouse_position();
7593
7594 window.on_mouse_event({
7595 let editor = self.editor.clone();
7596
7597 let minimap_hitbox = minimap_hitbox.clone();
7598
7599 move |event: &MouseMoveEvent, phase, window, cx| {
7600 if phase == DispatchPhase::Capture {
7601 return;
7602 }
7603
7604 editor.update(cx, |editor, cx| {
7605 if event.pressed_button == Some(MouseButton::Left)
7606 && editor.scroll_manager.is_dragging_minimap()
7607 {
7608 let old_position = mouse_position.along(minimap_axis);
7609 let new_position = event.position.along(minimap_axis);
7610 if (minimap_hitbox.origin.along(minimap_axis)
7611 ..minimap_hitbox.bottom_right().along(minimap_axis))
7612 .contains(&old_position)
7613 {
7614 let position =
7615 editor.scroll_position(cx).apply_along(minimap_axis, |p| {
7616 (p + ScrollPixelOffset::from(
7617 (new_position - old_position) / pixels_per_line,
7618 ))
7619 .max(0.)
7620 });
7621
7622 editor.set_scroll_position(position, window, cx);
7623 }
7624 cx.stop_propagation();
7625 } else if minimap_hitbox.is_hovered(window) {
7626 editor.scroll_manager.set_is_hovering_minimap_thumb(
7627 !event.dragging()
7628 && layout
7629 .thumb_layout
7630 .thumb_bounds
7631 .is_some_and(|bounds| bounds.contains(&event.position)),
7632 cx,
7633 );
7634
7635 // Stop hover events from propagating to the
7636 // underlying editor if the minimap hitbox is hovered
7637 if !event.dragging() {
7638 cx.stop_propagation();
7639 }
7640 } else {
7641 editor.scroll_manager.hide_minimap_thumb(cx);
7642 }
7643 mouse_position = event.position;
7644 });
7645 }
7646 });
7647
7648 if dragging_minimap {
7649 window.on_mouse_event({
7650 let editor = self.editor.clone();
7651 move |event: &MouseUpEvent, phase, window, cx| {
7652 if phase == DispatchPhase::Capture {
7653 return;
7654 }
7655
7656 editor.update(cx, |editor, cx| {
7657 if minimap_hitbox.is_hovered(window) {
7658 editor.scroll_manager.set_is_hovering_minimap_thumb(
7659 layout
7660 .thumb_layout
7661 .thumb_bounds
7662 .is_some_and(|bounds| bounds.contains(&event.position)),
7663 cx,
7664 );
7665 } else {
7666 editor.scroll_manager.hide_minimap_thumb(cx);
7667 }
7668 cx.stop_propagation();
7669 });
7670 }
7671 });
7672 } else {
7673 window.on_mouse_event({
7674 let editor = self.editor.clone();
7675
7676 move |event: &MouseDownEvent, phase, window, cx| {
7677 if phase == DispatchPhase::Capture || !minimap_hitbox.is_hovered(window) {
7678 return;
7679 }
7680
7681 let event_position = event.position;
7682
7683 let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds else {
7684 return;
7685 };
7686
7687 editor.update(cx, |editor, cx| {
7688 if !thumb_bounds.contains(&event_position) {
7689 let click_position =
7690 event_position.relative_to(&minimap_hitbox.origin).y;
7691
7692 let top_position = (click_position
7693 - thumb_bounds.size.along(minimap_axis) / 2.0)
7694 .max(Pixels::ZERO);
7695
7696 let scroll_offset = (layout.minimap_scroll_top
7697 + ScrollPixelOffset::from(
7698 top_position / layout.minimap_line_height,
7699 ))
7700 .min(layout.max_scroll_top);
7701
7702 let scroll_position = editor
7703 .scroll_position(cx)
7704 .apply_along(minimap_axis, |_| scroll_offset);
7705 editor.set_scroll_position(scroll_position, window, cx);
7706 }
7707
7708 editor.scroll_manager.set_is_dragging_minimap(cx);
7709 cx.stop_propagation();
7710 });
7711 }
7712 });
7713 }
7714 }
7715 }
7716
7717 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7718 for mut block in layout.blocks.drain(..) {
7719 if block.overlaps_gutter {
7720 block.element.paint(window, cx);
7721 } else {
7722 let mut bounds = layout.hitbox.bounds;
7723 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
7724 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7725 block.element.paint(window, cx);
7726 })
7727 }
7728 }
7729 }
7730
7731 fn paint_edit_prediction_popover(
7732 &mut self,
7733 layout: &mut EditorLayout,
7734 window: &mut Window,
7735 cx: &mut App,
7736 ) {
7737 if let Some(edit_prediction_popover) = layout.edit_prediction_popover.as_mut() {
7738 edit_prediction_popover.paint(window, cx);
7739 }
7740 }
7741
7742 fn paint_mouse_context_menu(
7743 &mut self,
7744 layout: &mut EditorLayout,
7745 window: &mut Window,
7746 cx: &mut App,
7747 ) {
7748 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
7749 mouse_context_menu.paint(window, cx);
7750 }
7751 }
7752
7753 fn paint_scroll_wheel_listener(
7754 &mut self,
7755 layout: &EditorLayout,
7756 window: &mut Window,
7757 cx: &mut App,
7758 ) {
7759 window.on_mouse_event({
7760 let position_map = layout.position_map.clone();
7761 let editor = self.editor.clone();
7762 let hitbox = layout.hitbox.clone();
7763 let mut delta = ScrollDelta::default();
7764
7765 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
7766 // accidentally turn off their scrolling.
7767 let base_scroll_sensitivity =
7768 EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
7769
7770 // Use a minimum fast_scroll_sensitivity for same reason above
7771 let fast_scroll_sensitivity = EditorSettings::get_global(cx)
7772 .fast_scroll_sensitivity
7773 .max(0.01);
7774
7775 move |event: &ScrollWheelEvent, phase, window, cx| {
7776 let scroll_sensitivity = {
7777 if event.modifiers.alt {
7778 fast_scroll_sensitivity
7779 } else {
7780 base_scroll_sensitivity
7781 }
7782 };
7783
7784 if phase == DispatchPhase::Bubble && hitbox.should_handle_scroll(window) {
7785 delta = delta.coalesce(event.delta);
7786 editor.update(cx, |editor, cx| {
7787 let position_map: &PositionMap = &position_map;
7788
7789 let line_height = position_map.line_height;
7790 let max_glyph_advance = position_map.em_advance;
7791 let (delta, axis) = match delta {
7792 gpui::ScrollDelta::Pixels(mut pixels) => {
7793 //Trackpad
7794 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
7795 (pixels, axis)
7796 }
7797
7798 gpui::ScrollDelta::Lines(lines) => {
7799 //Not trackpad
7800 let pixels =
7801 point(lines.x * max_glyph_advance, lines.y * line_height);
7802 (pixels, None)
7803 }
7804 };
7805
7806 let current_scroll_position = position_map.snapshot.scroll_position();
7807 let x = (current_scroll_position.x
7808 * ScrollPixelOffset::from(max_glyph_advance)
7809 - ScrollPixelOffset::from(delta.x * scroll_sensitivity))
7810 / ScrollPixelOffset::from(max_glyph_advance);
7811 let y = (current_scroll_position.y * ScrollPixelOffset::from(line_height)
7812 - ScrollPixelOffset::from(delta.y * scroll_sensitivity))
7813 / ScrollPixelOffset::from(line_height);
7814 let mut scroll_position =
7815 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
7816 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
7817 if forbid_vertical_scroll {
7818 scroll_position.y = current_scroll_position.y;
7819 }
7820
7821 if scroll_position != current_scroll_position {
7822 editor.scroll(scroll_position, axis, window, cx);
7823 cx.stop_propagation();
7824 } else if y < 0. {
7825 // Due to clamping, we may fail to detect cases of overscroll to the top;
7826 // We want the scroll manager to get an update in such cases and detect the change of direction
7827 // on the next frame.
7828 cx.notify();
7829 }
7830 });
7831 }
7832 }
7833 });
7834 }
7835
7836 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
7837 if layout.mode.is_minimap() {
7838 return;
7839 }
7840
7841 self.paint_scroll_wheel_listener(layout, window, cx);
7842
7843 window.on_mouse_event({
7844 let position_map = layout.position_map.clone();
7845 let editor = self.editor.clone();
7846 let line_numbers = layout.line_numbers.clone();
7847
7848 move |event: &MouseDownEvent, phase, window, cx| {
7849 if phase == DispatchPhase::Bubble {
7850 match event.button {
7851 MouseButton::Left => editor.update(cx, |editor, cx| {
7852 let pending_mouse_down = editor
7853 .pending_mouse_down
7854 .get_or_insert_with(Default::default)
7855 .clone();
7856
7857 *pending_mouse_down.borrow_mut() = Some(event.clone());
7858
7859 Self::mouse_left_down(
7860 editor,
7861 event,
7862 &position_map,
7863 line_numbers.as_ref(),
7864 window,
7865 cx,
7866 );
7867 }),
7868 MouseButton::Right => editor.update(cx, |editor, cx| {
7869 Self::mouse_right_down(editor, event, &position_map, window, cx);
7870 }),
7871 MouseButton::Middle => editor.update(cx, |editor, cx| {
7872 Self::mouse_middle_down(editor, event, &position_map, window, cx);
7873 }),
7874 _ => {}
7875 };
7876 }
7877 }
7878 });
7879
7880 window.on_mouse_event({
7881 let editor = self.editor.clone();
7882 let position_map = layout.position_map.clone();
7883
7884 move |event: &MouseUpEvent, phase, window, cx| {
7885 if phase == DispatchPhase::Bubble {
7886 editor.update(cx, |editor, cx| {
7887 Self::mouse_up(editor, event, &position_map, window, cx)
7888 });
7889 }
7890 }
7891 });
7892
7893 window.on_mouse_event({
7894 let editor = self.editor.clone();
7895 let position_map = layout.position_map.clone();
7896 let mut captured_mouse_down = None;
7897
7898 move |event: &MouseUpEvent, phase, window, cx| match phase {
7899 // Clear the pending mouse down during the capture phase,
7900 // so that it happens even if another event handler stops
7901 // propagation.
7902 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
7903 let pending_mouse_down = editor
7904 .pending_mouse_down
7905 .get_or_insert_with(Default::default)
7906 .clone();
7907
7908 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
7909 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
7910 captured_mouse_down = pending_mouse_down.take();
7911 window.refresh();
7912 }
7913 }),
7914 // Fire click handlers during the bubble phase.
7915 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
7916 if let Some(mouse_down) = captured_mouse_down.take() {
7917 let event = ClickEvent::Mouse(MouseClickEvent {
7918 down: mouse_down,
7919 up: event.clone(),
7920 });
7921 Self::click(editor, &event, &position_map, window, cx);
7922 }
7923 }),
7924 }
7925 });
7926
7927 window.on_mouse_event({
7928 let position_map = layout.position_map.clone();
7929 let editor = self.editor.clone();
7930
7931 move |event: &MousePressureEvent, phase, window, cx| {
7932 if phase == DispatchPhase::Bubble {
7933 editor.update(cx, |editor, cx| {
7934 Self::pressure_click(editor, &event, &position_map, window, cx);
7935 })
7936 }
7937 }
7938 });
7939
7940 window.on_mouse_event({
7941 let position_map = layout.position_map.clone();
7942 let editor = self.editor.clone();
7943
7944 move |event: &MouseMoveEvent, phase, window, cx| {
7945 if phase == DispatchPhase::Bubble {
7946 editor.update(cx, |editor, cx| {
7947 if editor.hover_state.focused(window, cx) {
7948 return;
7949 }
7950 if event.pressed_button == Some(MouseButton::Left)
7951 || event.pressed_button == Some(MouseButton::Middle)
7952 {
7953 Self::mouse_dragged(editor, event, &position_map, window, cx)
7954 }
7955
7956 Self::mouse_moved(editor, event, &position_map, window, cx)
7957 });
7958 }
7959 }
7960 });
7961 }
7962
7963 fn shape_line_number(
7964 &self,
7965 text: SharedString,
7966 color: Hsla,
7967 window: &mut Window,
7968 ) -> ShapedLine {
7969 let run = TextRun {
7970 len: text.len(),
7971 font: self.style.text.font(),
7972 color,
7973 ..Default::default()
7974 };
7975 window.text_system().shape_line(
7976 text,
7977 self.style.text.font_size.to_pixels(window.rem_size()),
7978 &[run],
7979 None,
7980 )
7981 }
7982
7983 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
7984 let unstaged = status.has_secondary_hunk();
7985 let unstaged_hollow = matches!(
7986 ProjectSettings::get_global(cx).git.hunk_style,
7987 GitHunkStyleSetting::UnstagedHollow
7988 );
7989
7990 unstaged == unstaged_hollow
7991 }
7992
7993 #[cfg(debug_assertions)]
7994 fn layout_debug_ranges(
7995 selections: &mut Vec<(PlayerColor, Vec<SelectionLayout>)>,
7996 anchor_range: Range<Anchor>,
7997 display_snapshot: &DisplaySnapshot,
7998 cx: &App,
7999 ) {
8000 let theme = cx.theme();
8001 text::debug::GlobalDebugRanges::with_locked(|debug_ranges| {
8002 if debug_ranges.ranges.is_empty() {
8003 return;
8004 }
8005 let buffer_snapshot = &display_snapshot.buffer_snapshot();
8006 for (buffer, buffer_range, excerpt_id) in
8007 buffer_snapshot.range_to_buffer_ranges(anchor_range)
8008 {
8009 let buffer_range =
8010 buffer.anchor_after(buffer_range.start)..buffer.anchor_before(buffer_range.end);
8011 selections.extend(debug_ranges.ranges.iter().flat_map(|debug_range| {
8012 let player_color = theme
8013 .players()
8014 .color_for_participant(debug_range.occurrence_index as u32 + 1);
8015 debug_range.ranges.iter().filter_map(move |range| {
8016 if range.start.buffer_id != Some(buffer.remote_id()) {
8017 return None;
8018 }
8019 let clipped_start = range.start.max(&buffer_range.start, buffer);
8020 let clipped_end = range.end.min(&buffer_range.end, buffer);
8021 let range = buffer_snapshot
8022 .anchor_range_in_excerpt(excerpt_id, *clipped_start..*clipped_end)?;
8023 let start = range.start.to_display_point(display_snapshot);
8024 let end = range.end.to_display_point(display_snapshot);
8025 let selection_layout = SelectionLayout {
8026 head: start,
8027 range: start..end,
8028 cursor_shape: CursorShape::Bar,
8029 is_newest: false,
8030 is_local: false,
8031 active_rows: start.row()..end.row(),
8032 user_name: Some(SharedString::new(debug_range.value.clone())),
8033 };
8034 Some((player_color, vec![selection_layout]))
8035 })
8036 }));
8037 }
8038 });
8039 }
8040}
8041
8042pub fn render_breadcrumb_text(
8043 mut segments: Vec<BreadcrumbText>,
8044 prefix: Option<gpui::AnyElement>,
8045 active_item: &dyn ItemHandle,
8046 multibuffer_header: bool,
8047 window: &mut Window,
8048 cx: &App,
8049) -> impl IntoElement {
8050 const MAX_SEGMENTS: usize = 12;
8051
8052 let element = h_flex().flex_grow().text_ui(cx);
8053
8054 let prefix_end_ix = cmp::min(segments.len(), MAX_SEGMENTS / 2);
8055 let suffix_start_ix = cmp::max(
8056 prefix_end_ix,
8057 segments.len().saturating_sub(MAX_SEGMENTS / 2),
8058 );
8059
8060 if suffix_start_ix > prefix_end_ix {
8061 segments.splice(
8062 prefix_end_ix..suffix_start_ix,
8063 Some(BreadcrumbText {
8064 text: "β―".into(),
8065 highlights: None,
8066 font: None,
8067 }),
8068 );
8069 }
8070
8071 let highlighted_segments = segments.into_iter().enumerate().map(|(index, segment)| {
8072 let mut text_style = window.text_style();
8073 if let Some(ref font) = segment.font {
8074 text_style.font_family = font.family.clone();
8075 text_style.font_features = font.features.clone();
8076 text_style.font_style = font.style;
8077 text_style.font_weight = font.weight;
8078 }
8079 text_style.color = Color::Muted.color(cx);
8080
8081 if index == 0
8082 && !workspace::TabBarSettings::get_global(cx).show
8083 && active_item.is_dirty(cx)
8084 && let Some(styled_element) = apply_dirty_filename_style(&segment, &text_style, cx)
8085 {
8086 return styled_element;
8087 }
8088
8089 StyledText::new(segment.text.replace('\n', "β"))
8090 .with_default_highlights(&text_style, segment.highlights.unwrap_or_default())
8091 .into_any()
8092 });
8093
8094 let breadcrumbs = Itertools::intersperse_with(highlighted_segments, || {
8095 Label::new("βΊ").color(Color::Placeholder).into_any_element()
8096 });
8097
8098 let breadcrumbs_stack = h_flex()
8099 .gap_1()
8100 .when(multibuffer_header, |this| {
8101 this.pl_2()
8102 .border_l_1()
8103 .border_color(cx.theme().colors().border.opacity(0.6))
8104 })
8105 .children(breadcrumbs);
8106
8107 let breadcrumbs = if let Some(prefix) = prefix {
8108 h_flex().gap_1p5().child(prefix).child(breadcrumbs_stack)
8109 } else {
8110 breadcrumbs_stack
8111 };
8112
8113 let editor = active_item
8114 .downcast::<Editor>()
8115 .map(|editor| editor.downgrade());
8116
8117 let has_project_path = active_item.project_path(cx).is_some();
8118
8119 match editor {
8120 Some(editor) => element
8121 .id("breadcrumb_container")
8122 .when(!multibuffer_header, |this| this.overflow_x_scroll())
8123 .child(
8124 ButtonLike::new("toggle outline view")
8125 .child(breadcrumbs)
8126 .when(multibuffer_header, |this| {
8127 this.style(ButtonStyle::Transparent)
8128 })
8129 .when(!multibuffer_header, |this| {
8130 let focus_handle = editor.upgrade().unwrap().focus_handle(&cx);
8131
8132 this.tooltip(Tooltip::element(move |_window, cx| {
8133 v_flex()
8134 .gap_1()
8135 .child(
8136 h_flex()
8137 .gap_1()
8138 .justify_between()
8139 .child(Label::new("Show Symbol Outline"))
8140 .child(ui::KeyBinding::for_action_in(
8141 &zed_actions::outline::ToggleOutline,
8142 &focus_handle,
8143 cx,
8144 )),
8145 )
8146 .when(has_project_path, |this| {
8147 this.child(
8148 h_flex()
8149 .gap_1()
8150 .justify_between()
8151 .pt_1()
8152 .border_t_1()
8153 .border_color(cx.theme().colors().border_variant)
8154 .child(Label::new("Right-Click to Copy Path")),
8155 )
8156 })
8157 .into_any_element()
8158 }))
8159 .on_click({
8160 let editor = editor.clone();
8161 move |_, window, cx| {
8162 if let Some((editor, callback)) = editor
8163 .upgrade()
8164 .zip(zed_actions::outline::TOGGLE_OUTLINE.get())
8165 {
8166 callback(editor.to_any_view(), window, cx);
8167 }
8168 }
8169 })
8170 .when(has_project_path, |this| {
8171 this.on_right_click({
8172 let editor = editor.clone();
8173 move |_, _, cx| {
8174 if let Some(abs_path) = editor.upgrade().and_then(|editor| {
8175 editor.update(cx, |editor, cx| {
8176 editor.target_file_abs_path(cx)
8177 })
8178 }) {
8179 if let Some(path_str) = abs_path.to_str() {
8180 cx.write_to_clipboard(ClipboardItem::new_string(
8181 path_str.to_string(),
8182 ));
8183 }
8184 }
8185 }
8186 })
8187 })
8188 }),
8189 )
8190 .into_any_element(),
8191 None => element
8192 .h(rems_from_px(22.)) // Match the height and padding of the `ButtonLike` in the other arm.
8193 .pl_1()
8194 .child(breadcrumbs)
8195 .into_any_element(),
8196 }
8197}
8198
8199fn apply_dirty_filename_style(
8200 segment: &BreadcrumbText,
8201 text_style: &gpui::TextStyle,
8202 cx: &App,
8203) -> Option<gpui::AnyElement> {
8204 let text = segment.text.replace('\n', "β");
8205
8206 let filename_position = std::path::Path::new(&segment.text)
8207 .file_name()
8208 .and_then(|f| {
8209 let filename_str = f.to_string_lossy();
8210 segment.text.rfind(filename_str.as_ref())
8211 })?;
8212
8213 let bold_weight = FontWeight::BOLD;
8214 let default_color = Color::Default.color(cx);
8215
8216 if filename_position == 0 {
8217 let mut filename_style = text_style.clone();
8218 filename_style.font_weight = bold_weight;
8219 filename_style.color = default_color;
8220
8221 return Some(
8222 StyledText::new(text)
8223 .with_default_highlights(&filename_style, [])
8224 .into_any(),
8225 );
8226 }
8227
8228 let highlight_style = gpui::HighlightStyle {
8229 font_weight: Some(bold_weight),
8230 color: Some(default_color),
8231 ..Default::default()
8232 };
8233
8234 let highlight = vec![(filename_position..text.len(), highlight_style)];
8235 Some(
8236 StyledText::new(text)
8237 .with_default_highlights(text_style, highlight)
8238 .into_any(),
8239 )
8240}
8241
8242fn file_status_label_color(file_status: Option<FileStatus>) -> Color {
8243 file_status.map_or(Color::Default, |status| {
8244 if status.is_conflicted() {
8245 Color::Conflict
8246 } else if status.is_modified() {
8247 Color::Modified
8248 } else if status.is_deleted() {
8249 Color::Disabled
8250 } else if status.is_created() {
8251 Color::Created
8252 } else {
8253 Color::Default
8254 }
8255 })
8256}
8257
8258fn header_jump_data(
8259 editor_snapshot: &EditorSnapshot,
8260 block_row_start: DisplayRow,
8261 height: u32,
8262 first_excerpt: &ExcerptInfo,
8263 latest_selection_anchors: &HashMap<BufferId, Anchor>,
8264) -> JumpData {
8265 let jump_target = if let Some(anchor) = latest_selection_anchors.get(&first_excerpt.buffer_id)
8266 && let Some(range) = editor_snapshot.context_range_for_excerpt(anchor.excerpt_id)
8267 && let Some(buffer) = editor_snapshot
8268 .buffer_snapshot()
8269 .buffer_for_excerpt(anchor.excerpt_id)
8270 {
8271 JumpTargetInExcerptInput {
8272 id: anchor.excerpt_id,
8273 buffer,
8274 excerpt_start_anchor: range.start,
8275 jump_anchor: anchor.text_anchor,
8276 }
8277 } else {
8278 JumpTargetInExcerptInput {
8279 id: first_excerpt.id,
8280 buffer: &first_excerpt.buffer,
8281 excerpt_start_anchor: first_excerpt.range.context.start,
8282 jump_anchor: first_excerpt.range.primary.start,
8283 }
8284 };
8285 header_jump_data_inner(editor_snapshot, block_row_start, height, &jump_target)
8286}
8287
8288struct JumpTargetInExcerptInput<'a> {
8289 id: ExcerptId,
8290 buffer: &'a language::BufferSnapshot,
8291 excerpt_start_anchor: text::Anchor,
8292 jump_anchor: text::Anchor,
8293}
8294
8295fn header_jump_data_inner(
8296 snapshot: &EditorSnapshot,
8297 block_row_start: DisplayRow,
8298 height: u32,
8299 for_excerpt: &JumpTargetInExcerptInput,
8300) -> JumpData {
8301 let buffer = &for_excerpt.buffer;
8302 let jump_position = language::ToPoint::to_point(&for_excerpt.jump_anchor, buffer);
8303 let excerpt_start = for_excerpt.excerpt_start_anchor;
8304 let rows_from_excerpt_start = if for_excerpt.jump_anchor == excerpt_start {
8305 0
8306 } else {
8307 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
8308 jump_position.row.saturating_sub(excerpt_start_point.row)
8309 };
8310
8311 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
8312 .saturating_sub(
8313 snapshot
8314 .scroll_anchor
8315 .scroll_position(&snapshot.display_snapshot)
8316 .y as u32,
8317 );
8318
8319 JumpData::MultiBufferPoint {
8320 excerpt_id: for_excerpt.id,
8321 anchor: for_excerpt.jump_anchor,
8322 position: jump_position,
8323 line_offset_from_top,
8324 }
8325}
8326
8327pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
8328
8329impl AcceptEditPredictionBinding {
8330 pub fn keystroke(&self) -> Option<&KeybindingKeystroke> {
8331 if let Some(binding) = self.0.as_ref() {
8332 match &binding.keystrokes() {
8333 [keystroke, ..] => Some(keystroke),
8334 _ => None,
8335 }
8336 } else {
8337 None
8338 }
8339 }
8340}
8341
8342fn prepaint_gutter_button(
8343 mut button: AnyElement,
8344 row: DisplayRow,
8345 line_height: Pixels,
8346 gutter_dimensions: &GutterDimensions,
8347 scroll_position: gpui::Point<ScrollOffset>,
8348 gutter_hitbox: &Hitbox,
8349 window: &mut Window,
8350 cx: &mut App,
8351) -> AnyElement {
8352 let available_space = size(
8353 AvailableSpace::MinContent,
8354 AvailableSpace::Definite(line_height),
8355 );
8356 let indicator_size = button.layout_as_root(available_space, window, cx);
8357 let git_gutter_width = EditorElement::gutter_strip_width(line_height)
8358 + gutter_dimensions
8359 .git_blame_entries_width
8360 .unwrap_or_default();
8361
8362 let x = git_gutter_width + px(2.);
8363
8364 let mut y =
8365 Pixels::from((row.as_f64() - scroll_position.y) * ScrollPixelOffset::from(line_height));
8366 y += (line_height - indicator_size.height) / 2.;
8367
8368 button.prepaint_as_root(
8369 gutter_hitbox.origin + point(x, y),
8370 available_space,
8371 window,
8372 cx,
8373 );
8374 button
8375}
8376
8377fn render_inline_blame_entry(
8378 blame_entry: BlameEntry,
8379 style: &EditorStyle,
8380 cx: &mut App,
8381) -> Option<AnyElement> {
8382 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
8383 renderer.render_inline_blame_entry(&style.text, blame_entry, cx)
8384}
8385
8386fn render_blame_entry_popover(
8387 blame_entry: BlameEntry,
8388 scroll_handle: ScrollHandle,
8389 commit_message: Option<ParsedCommitMessage>,
8390 markdown: Entity<Markdown>,
8391 workspace: WeakEntity<Workspace>,
8392 blame: &Entity<GitBlame>,
8393 buffer: BufferId,
8394 window: &mut Window,
8395 cx: &mut App,
8396) -> Option<AnyElement> {
8397 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
8398 let blame = blame.read(cx);
8399 let repository = blame.repository(cx, buffer)?;
8400 renderer.render_blame_entry_popover(
8401 blame_entry,
8402 scroll_handle,
8403 commit_message,
8404 markdown,
8405 repository,
8406 workspace,
8407 window,
8408 cx,
8409 )
8410}
8411
8412fn render_blame_entry(
8413 ix: usize,
8414 blame: &Entity<GitBlame>,
8415 blame_entry: BlameEntry,
8416 style: &EditorStyle,
8417 last_used_color: &mut Option<(Hsla, Oid)>,
8418 editor: Entity<Editor>,
8419 workspace: Entity<Workspace>,
8420 buffer: BufferId,
8421 renderer: &dyn BlameRenderer,
8422 window: &mut Window,
8423 cx: &mut App,
8424) -> Option<AnyElement> {
8425 let index: u32 = blame_entry.sha.into();
8426 let mut sha_color = cx.theme().players().color_for_participant(index).cursor;
8427
8428 // If the last color we used is the same as the one we get for this line, but
8429 // the commit SHAs are different, then we try again to get a different color.
8430 if let Some((color, sha)) = *last_used_color
8431 && sha != blame_entry.sha
8432 && color == sha_color
8433 {
8434 sha_color = cx.theme().players().color_for_participant(index + 1).cursor;
8435 }
8436 last_used_color.replace((sha_color, blame_entry.sha));
8437
8438 let blame = blame.read(cx);
8439 let details = blame.details_for_entry(buffer, &blame_entry);
8440 let repository = blame.repository(cx, buffer)?;
8441 renderer.render_blame_entry(
8442 &style.text,
8443 blame_entry,
8444 details,
8445 repository,
8446 workspace.downgrade(),
8447 editor,
8448 ix,
8449 sha_color,
8450 window,
8451 cx,
8452 )
8453}
8454
8455#[derive(Debug)]
8456pub(crate) struct LineWithInvisibles {
8457 fragments: SmallVec<[LineFragment; 1]>,
8458 invisibles: Vec<Invisible>,
8459 len: usize,
8460 pub(crate) width: Pixels,
8461 font_size: Pixels,
8462}
8463
8464enum LineFragment {
8465 Text(ShapedLine),
8466 Element {
8467 id: ChunkRendererId,
8468 element: Option<AnyElement>,
8469 size: Size<Pixels>,
8470 len: usize,
8471 },
8472}
8473
8474impl fmt::Debug for LineFragment {
8475 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
8476 match self {
8477 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
8478 LineFragment::Element { size, len, .. } => f
8479 .debug_struct("Element")
8480 .field("size", size)
8481 .field("len", len)
8482 .finish(),
8483 }
8484 }
8485}
8486
8487impl LineWithInvisibles {
8488 fn from_chunks<'a>(
8489 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
8490 editor_style: &EditorStyle,
8491 max_line_len: usize,
8492 max_line_count: usize,
8493 editor_mode: &EditorMode,
8494 text_width: Pixels,
8495 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8496 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
8497 window: &mut Window,
8498 cx: &mut App,
8499 ) -> Vec<Self> {
8500 let text_style = &editor_style.text;
8501 let mut layouts = Vec::with_capacity(max_line_count);
8502 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
8503 let mut line = String::new();
8504 let mut invisibles = Vec::new();
8505 let mut width = Pixels::ZERO;
8506 let mut len = 0;
8507 let mut styles = Vec::new();
8508 let mut non_whitespace_added = false;
8509 let mut row = 0;
8510 let mut line_exceeded_max_len = false;
8511 let font_size = text_style.font_size.to_pixels(window.rem_size());
8512 let min_contrast = EditorSettings::get_global(cx).minimum_contrast_for_highlights;
8513
8514 let ellipsis = SharedString::from("β―");
8515
8516 for highlighted_chunk in chunks.chain([HighlightedChunk {
8517 text: "\n",
8518 style: None,
8519 is_tab: false,
8520 is_inlay: false,
8521 replacement: None,
8522 }]) {
8523 if let Some(replacement) = highlighted_chunk.replacement {
8524 if !line.is_empty() {
8525 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8526 let text_runs: &[TextRun] = if segments.is_empty() {
8527 &styles
8528 } else {
8529 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8530 };
8531 let shaped_line = window.text_system().shape_line(
8532 line.clone().into(),
8533 font_size,
8534 text_runs,
8535 None,
8536 );
8537 width += shaped_line.width;
8538 len += shaped_line.len;
8539 fragments.push(LineFragment::Text(shaped_line));
8540 line.clear();
8541 styles.clear();
8542 }
8543
8544 match replacement {
8545 ChunkReplacement::Renderer(renderer) => {
8546 let available_width = if renderer.constrain_width {
8547 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
8548 ellipsis.clone()
8549 } else {
8550 SharedString::from(Arc::from(highlighted_chunk.text))
8551 };
8552 let shaped_line = window.text_system().shape_line(
8553 chunk,
8554 font_size,
8555 &[text_style.to_run(highlighted_chunk.text.len())],
8556 None,
8557 );
8558 AvailableSpace::Definite(shaped_line.width)
8559 } else {
8560 AvailableSpace::MinContent
8561 };
8562
8563 let mut element = (renderer.render)(&mut ChunkRendererContext {
8564 context: cx,
8565 window,
8566 max_width: text_width,
8567 });
8568 let line_height = text_style.line_height_in_pixels(window.rem_size());
8569 let size = element.layout_as_root(
8570 size(available_width, AvailableSpace::Definite(line_height)),
8571 window,
8572 cx,
8573 );
8574
8575 width += size.width;
8576 len += highlighted_chunk.text.len();
8577 fragments.push(LineFragment::Element {
8578 id: renderer.id,
8579 element: Some(element),
8580 size,
8581 len: highlighted_chunk.text.len(),
8582 });
8583 }
8584 ChunkReplacement::Str(x) => {
8585 let text_style = if let Some(style) = highlighted_chunk.style {
8586 Cow::Owned(text_style.clone().highlight(style))
8587 } else {
8588 Cow::Borrowed(text_style)
8589 };
8590
8591 let run = TextRun {
8592 len: x.len(),
8593 font: text_style.font(),
8594 color: text_style.color,
8595 background_color: text_style.background_color,
8596 underline: text_style.underline,
8597 strikethrough: text_style.strikethrough,
8598 };
8599 let line_layout = window
8600 .text_system()
8601 .shape_line(x, font_size, &[run], None)
8602 .with_len(highlighted_chunk.text.len());
8603
8604 width += line_layout.width;
8605 len += highlighted_chunk.text.len();
8606 fragments.push(LineFragment::Text(line_layout))
8607 }
8608 }
8609 } else {
8610 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
8611 if ix > 0 {
8612 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8613 let text_runs = if segments.is_empty() {
8614 &styles
8615 } else {
8616 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8617 };
8618 let shaped_line = window.text_system().shape_line(
8619 line.clone().into(),
8620 font_size,
8621 text_runs,
8622 None,
8623 );
8624 width += shaped_line.width;
8625 len += shaped_line.len;
8626 fragments.push(LineFragment::Text(shaped_line));
8627 layouts.push(Self {
8628 width: mem::take(&mut width),
8629 len: mem::take(&mut len),
8630 fragments: mem::take(&mut fragments),
8631 invisibles: std::mem::take(&mut invisibles),
8632 font_size,
8633 });
8634
8635 line.clear();
8636 styles.clear();
8637 row += 1;
8638 line_exceeded_max_len = false;
8639 non_whitespace_added = false;
8640 if row == max_line_count {
8641 return layouts;
8642 }
8643 }
8644
8645 if !line_chunk.is_empty() && !line_exceeded_max_len {
8646 let text_style = if let Some(style) = highlighted_chunk.style {
8647 Cow::Owned(text_style.clone().highlight(style))
8648 } else {
8649 Cow::Borrowed(text_style)
8650 };
8651
8652 if line.len() + line_chunk.len() > max_line_len {
8653 let mut chunk_len = max_line_len - line.len();
8654 while !line_chunk.is_char_boundary(chunk_len) {
8655 chunk_len -= 1;
8656 }
8657 line_chunk = &line_chunk[..chunk_len];
8658 line_exceeded_max_len = true;
8659 }
8660
8661 styles.push(TextRun {
8662 len: line_chunk.len(),
8663 font: text_style.font(),
8664 color: text_style.color,
8665 background_color: text_style.background_color,
8666 underline: text_style.underline,
8667 strikethrough: text_style.strikethrough,
8668 });
8669
8670 if editor_mode.is_full() && !highlighted_chunk.is_inlay {
8671 // Line wrap pads its contents with fake whitespaces,
8672 // avoid printing them
8673 let is_soft_wrapped = is_row_soft_wrapped(row);
8674 if highlighted_chunk.is_tab {
8675 if non_whitespace_added || !is_soft_wrapped {
8676 invisibles.push(Invisible::Tab {
8677 line_start_offset: line.len(),
8678 line_end_offset: line.len() + line_chunk.len(),
8679 });
8680 }
8681 } else {
8682 invisibles.extend(line_chunk.char_indices().filter_map(
8683 |(index, c)| {
8684 let is_whitespace = c.is_whitespace();
8685 non_whitespace_added |= !is_whitespace;
8686 if is_whitespace
8687 && (non_whitespace_added || !is_soft_wrapped)
8688 {
8689 Some(Invisible::Whitespace {
8690 line_offset: line.len() + index,
8691 })
8692 } else {
8693 None
8694 }
8695 },
8696 ))
8697 }
8698 }
8699
8700 line.push_str(line_chunk);
8701 }
8702 }
8703 }
8704 }
8705
8706 layouts
8707 }
8708
8709 /// Takes text runs and non-overlapping left-to-right background ranges with color.
8710 /// Returns new text runs with adjusted contrast as per background ranges.
8711 fn split_runs_by_bg_segments(
8712 text_runs: &[TextRun],
8713 bg_segments: &[(Range<DisplayPoint>, Hsla)],
8714 min_contrast: f32,
8715 start_col_offset: usize,
8716 ) -> Vec<TextRun> {
8717 let mut output_runs: Vec<TextRun> = Vec::with_capacity(text_runs.len());
8718 let mut line_col = start_col_offset;
8719 let mut segment_ix = 0usize;
8720
8721 for text_run in text_runs.iter() {
8722 let run_start_col = line_col;
8723 let run_end_col = run_start_col + text_run.len;
8724 while segment_ix < bg_segments.len()
8725 && (bg_segments[segment_ix].0.end.column() as usize) <= run_start_col
8726 {
8727 segment_ix += 1;
8728 }
8729 let mut cursor_col = run_start_col;
8730 let mut local_segment_ix = segment_ix;
8731 while local_segment_ix < bg_segments.len() {
8732 let (range, segment_color) = &bg_segments[local_segment_ix];
8733 let segment_start_col = range.start.column() as usize;
8734 let segment_end_col = range.end.column() as usize;
8735 if segment_start_col >= run_end_col {
8736 break;
8737 }
8738 if segment_start_col > cursor_col {
8739 let span_len = segment_start_col - cursor_col;
8740 output_runs.push(TextRun {
8741 len: span_len,
8742 font: text_run.font.clone(),
8743 color: text_run.color,
8744 background_color: text_run.background_color,
8745 underline: text_run.underline,
8746 strikethrough: text_run.strikethrough,
8747 });
8748 cursor_col = segment_start_col;
8749 }
8750 let segment_slice_end_col = segment_end_col.min(run_end_col);
8751 if segment_slice_end_col > cursor_col {
8752 let new_text_color =
8753 ensure_minimum_contrast(text_run.color, *segment_color, min_contrast);
8754 output_runs.push(TextRun {
8755 len: segment_slice_end_col - cursor_col,
8756 font: text_run.font.clone(),
8757 color: new_text_color,
8758 background_color: text_run.background_color,
8759 underline: text_run.underline,
8760 strikethrough: text_run.strikethrough,
8761 });
8762 cursor_col = segment_slice_end_col;
8763 }
8764 if segment_end_col >= run_end_col {
8765 break;
8766 }
8767 local_segment_ix += 1;
8768 }
8769 if cursor_col < run_end_col {
8770 output_runs.push(TextRun {
8771 len: run_end_col - cursor_col,
8772 font: text_run.font.clone(),
8773 color: text_run.color,
8774 background_color: text_run.background_color,
8775 underline: text_run.underline,
8776 strikethrough: text_run.strikethrough,
8777 });
8778 }
8779 line_col = run_end_col;
8780 segment_ix = local_segment_ix;
8781 }
8782 output_runs
8783 }
8784
8785 fn prepaint(
8786 &mut self,
8787 line_height: Pixels,
8788 scroll_position: gpui::Point<ScrollOffset>,
8789 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
8790 row: DisplayRow,
8791 content_origin: gpui::Point<Pixels>,
8792 line_elements: &mut SmallVec<[AnyElement; 1]>,
8793 window: &mut Window,
8794 cx: &mut App,
8795 ) {
8796 let line_y = f32::from(line_height) * Pixels::from(row.as_f64() - scroll_position.y);
8797 self.prepaint_with_custom_offset(
8798 line_height,
8799 scroll_pixel_position,
8800 content_origin,
8801 line_y,
8802 line_elements,
8803 window,
8804 cx,
8805 );
8806 }
8807
8808 fn prepaint_with_custom_offset(
8809 &mut self,
8810 line_height: Pixels,
8811 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
8812 content_origin: gpui::Point<Pixels>,
8813 line_y: Pixels,
8814 line_elements: &mut SmallVec<[AnyElement; 1]>,
8815 window: &mut Window,
8816 cx: &mut App,
8817 ) {
8818 let mut fragment_origin =
8819 content_origin + gpui::point(Pixels::from(-scroll_pixel_position.x), line_y);
8820 for fragment in &mut self.fragments {
8821 match fragment {
8822 LineFragment::Text(line) => {
8823 fragment_origin.x += line.width;
8824 }
8825 LineFragment::Element { element, size, .. } => {
8826 let mut element = element
8827 .take()
8828 .expect("you can't prepaint LineWithInvisibles twice");
8829
8830 // Center the element vertically within the line.
8831 let mut element_origin = fragment_origin;
8832 element_origin.y += (line_height - size.height) / 2.;
8833 element.prepaint_at(element_origin, window, cx);
8834 line_elements.push(element);
8835
8836 fragment_origin.x += size.width;
8837 }
8838 }
8839 }
8840 }
8841
8842 fn draw(
8843 &self,
8844 layout: &EditorLayout,
8845 row: DisplayRow,
8846 content_origin: gpui::Point<Pixels>,
8847 whitespace_setting: ShowWhitespaceSetting,
8848 selection_ranges: &[Range<DisplayPoint>],
8849 window: &mut Window,
8850 cx: &mut App,
8851 ) {
8852 self.draw_with_custom_offset(
8853 layout,
8854 row,
8855 content_origin,
8856 layout.position_map.line_height
8857 * (row.as_f64() - layout.position_map.scroll_position.y) as f32,
8858 whitespace_setting,
8859 selection_ranges,
8860 window,
8861 cx,
8862 );
8863 }
8864
8865 fn draw_with_custom_offset(
8866 &self,
8867 layout: &EditorLayout,
8868 row: DisplayRow,
8869 content_origin: gpui::Point<Pixels>,
8870 line_y: Pixels,
8871 whitespace_setting: ShowWhitespaceSetting,
8872 selection_ranges: &[Range<DisplayPoint>],
8873 window: &mut Window,
8874 cx: &mut App,
8875 ) {
8876 let line_height = layout.position_map.line_height;
8877 let mut fragment_origin = content_origin
8878 + gpui::point(
8879 Pixels::from(-layout.position_map.scroll_pixel_position.x),
8880 line_y,
8881 );
8882
8883 for fragment in &self.fragments {
8884 match fragment {
8885 LineFragment::Text(line) => {
8886 line.paint(
8887 fragment_origin,
8888 line_height,
8889 layout.text_align,
8890 Some(layout.content_width),
8891 window,
8892 cx,
8893 )
8894 .log_err();
8895 fragment_origin.x += line.width;
8896 }
8897 LineFragment::Element { size, .. } => {
8898 fragment_origin.x += size.width;
8899 }
8900 }
8901 }
8902
8903 self.draw_invisibles(
8904 selection_ranges,
8905 layout,
8906 content_origin,
8907 line_y,
8908 row,
8909 line_height,
8910 whitespace_setting,
8911 window,
8912 cx,
8913 );
8914 }
8915
8916 fn draw_background(
8917 &self,
8918 layout: &EditorLayout,
8919 row: DisplayRow,
8920 content_origin: gpui::Point<Pixels>,
8921 window: &mut Window,
8922 cx: &mut App,
8923 ) {
8924 let line_height = layout.position_map.line_height;
8925 let line_y = line_height * (row.as_f64() - layout.position_map.scroll_position.y) as f32;
8926
8927 let mut fragment_origin = content_origin
8928 + gpui::point(
8929 Pixels::from(-layout.position_map.scroll_pixel_position.x),
8930 line_y,
8931 );
8932
8933 for fragment in &self.fragments {
8934 match fragment {
8935 LineFragment::Text(line) => {
8936 line.paint_background(
8937 fragment_origin,
8938 line_height,
8939 layout.text_align,
8940 Some(layout.content_width),
8941 window,
8942 cx,
8943 )
8944 .log_err();
8945 fragment_origin.x += line.width;
8946 }
8947 LineFragment::Element { size, .. } => {
8948 fragment_origin.x += size.width;
8949 }
8950 }
8951 }
8952 }
8953
8954 fn draw_invisibles(
8955 &self,
8956 selection_ranges: &[Range<DisplayPoint>],
8957 layout: &EditorLayout,
8958 content_origin: gpui::Point<Pixels>,
8959 line_y: Pixels,
8960 row: DisplayRow,
8961 line_height: Pixels,
8962 whitespace_setting: ShowWhitespaceSetting,
8963 window: &mut Window,
8964 cx: &mut App,
8965 ) {
8966 let extract_whitespace_info = |invisible: &Invisible| {
8967 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
8968 Invisible::Tab {
8969 line_start_offset,
8970 line_end_offset,
8971 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
8972 Invisible::Whitespace { line_offset } => {
8973 (*line_offset, line_offset + 1, &layout.space_invisible)
8974 }
8975 };
8976
8977 let x_offset: ScrollPixelOffset = self.x_for_index(token_offset).into();
8978 let invisible_offset: ScrollPixelOffset =
8979 ((layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0)
8980 .into();
8981 let origin = content_origin
8982 + gpui::point(
8983 Pixels::from(
8984 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
8985 ),
8986 line_y,
8987 );
8988
8989 (
8990 [token_offset, token_end_offset],
8991 Box::new(move |window: &mut Window, cx: &mut App| {
8992 invisible_symbol
8993 .paint(origin, line_height, TextAlign::Left, None, window, cx)
8994 .log_err();
8995 }),
8996 )
8997 };
8998
8999 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
9000 match whitespace_setting {
9001 ShowWhitespaceSetting::None => (),
9002 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
9003 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
9004 let invisible_point = DisplayPoint::new(row, start as u32);
9005 if !selection_ranges
9006 .iter()
9007 .any(|region| region.start <= invisible_point && invisible_point < region.end)
9008 {
9009 return;
9010 }
9011
9012 paint(window, cx);
9013 }),
9014
9015 ShowWhitespaceSetting::Trailing => {
9016 let mut previous_start = self.len;
9017 for ([start, end], paint) in invisible_iter.rev() {
9018 if previous_start != end {
9019 break;
9020 }
9021 previous_start = start;
9022 paint(window, cx);
9023 }
9024 }
9025
9026 // For a whitespace to be on a boundary, any of the following conditions need to be met:
9027 // - It is a tab
9028 // - It is adjacent to an edge (start or end)
9029 // - It is adjacent to a whitespace (left or right)
9030 ShowWhitespaceSetting::Boundary => {
9031 // 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
9032 // the above cases.
9033 // Note: We zip in the original `invisibles` to check for tab equality
9034 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
9035 for (([start, end], paint), invisible) in
9036 invisible_iter.zip_eq(self.invisibles.iter())
9037 {
9038 let should_render = match (&last_seen, invisible) {
9039 (_, Invisible::Tab { .. }) => true,
9040 (Some((_, last_end, _)), _) => *last_end == start,
9041 _ => false,
9042 };
9043
9044 if should_render || start == 0 || end == self.len {
9045 paint(window, cx);
9046
9047 // Since we are scanning from the left, we will skip over the first available whitespace that is part
9048 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
9049 if let Some((should_render_last, last_end, paint_last)) = last_seen {
9050 // Note that we need to make sure that the last one is actually adjacent
9051 if !should_render_last && last_end == start {
9052 paint_last(window, cx);
9053 }
9054 }
9055 }
9056
9057 // Manually render anything within a selection
9058 let invisible_point = DisplayPoint::new(row, start as u32);
9059 if selection_ranges.iter().any(|region| {
9060 region.start <= invisible_point && invisible_point < region.end
9061 }) {
9062 paint(window, cx);
9063 }
9064
9065 last_seen = Some((should_render, end, paint));
9066 }
9067 }
9068 }
9069 }
9070
9071 pub fn x_for_index(&self, index: usize) -> Pixels {
9072 let mut fragment_start_x = Pixels::ZERO;
9073 let mut fragment_start_index = 0;
9074
9075 for fragment in &self.fragments {
9076 match fragment {
9077 LineFragment::Text(shaped_line) => {
9078 let fragment_end_index = fragment_start_index + shaped_line.len;
9079 if index < fragment_end_index {
9080 return fragment_start_x
9081 + shaped_line.x_for_index(index - fragment_start_index);
9082 }
9083 fragment_start_x += shaped_line.width;
9084 fragment_start_index = fragment_end_index;
9085 }
9086 LineFragment::Element { len, size, .. } => {
9087 let fragment_end_index = fragment_start_index + len;
9088 if index < fragment_end_index {
9089 return fragment_start_x;
9090 }
9091 fragment_start_x += size.width;
9092 fragment_start_index = fragment_end_index;
9093 }
9094 }
9095 }
9096
9097 fragment_start_x
9098 }
9099
9100 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
9101 let mut fragment_start_x = Pixels::ZERO;
9102 let mut fragment_start_index = 0;
9103
9104 for fragment in &self.fragments {
9105 match fragment {
9106 LineFragment::Text(shaped_line) => {
9107 let fragment_end_x = fragment_start_x + shaped_line.width;
9108 if x < fragment_end_x {
9109 return Some(
9110 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
9111 );
9112 }
9113 fragment_start_x = fragment_end_x;
9114 fragment_start_index += shaped_line.len;
9115 }
9116 LineFragment::Element { len, size, .. } => {
9117 let fragment_end_x = fragment_start_x + size.width;
9118 if x < fragment_end_x {
9119 return Some(fragment_start_index);
9120 }
9121 fragment_start_index += len;
9122 fragment_start_x = fragment_end_x;
9123 }
9124 }
9125 }
9126
9127 None
9128 }
9129
9130 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
9131 let mut fragment_start_index = 0;
9132
9133 for fragment in &self.fragments {
9134 match fragment {
9135 LineFragment::Text(shaped_line) => {
9136 let fragment_end_index = fragment_start_index + shaped_line.len;
9137 if index < fragment_end_index {
9138 return shaped_line.font_id_for_index(index - fragment_start_index);
9139 }
9140 fragment_start_index = fragment_end_index;
9141 }
9142 LineFragment::Element { len, .. } => {
9143 let fragment_end_index = fragment_start_index + len;
9144 if index < fragment_end_index {
9145 return None;
9146 }
9147 fragment_start_index = fragment_end_index;
9148 }
9149 }
9150 }
9151
9152 None
9153 }
9154
9155 pub fn alignment_offset(&self, text_align: TextAlign, content_width: Pixels) -> Pixels {
9156 let line_width = self.width;
9157 match text_align {
9158 TextAlign::Left => px(0.0),
9159 TextAlign::Center => (content_width - line_width) / 2.0,
9160 TextAlign::Right => content_width - line_width,
9161 }
9162 }
9163}
9164
9165#[derive(Debug, Clone, Copy, PartialEq, Eq)]
9166enum Invisible {
9167 /// A tab character
9168 ///
9169 /// A tab character is internally represented by spaces (configured by the user's tab width)
9170 /// aligned to the nearest column, so it's necessary to store the start and end offset for
9171 /// adjacency checks.
9172 Tab {
9173 line_start_offset: usize,
9174 line_end_offset: usize,
9175 },
9176 Whitespace {
9177 line_offset: usize,
9178 },
9179}
9180
9181impl EditorElement {
9182 /// Returns the rem size to use when rendering the [`EditorElement`].
9183 ///
9184 /// This allows UI elements to scale based on the `buffer_font_size`.
9185 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
9186 match self.editor.read(cx).mode {
9187 EditorMode::Full {
9188 scale_ui_elements_with_buffer_font_size: true,
9189 ..
9190 }
9191 | EditorMode::Minimap { .. } => {
9192 let buffer_font_size = self.style.text.font_size;
9193 match buffer_font_size {
9194 AbsoluteLength::Pixels(pixels) => {
9195 let rem_size_scale = {
9196 // Our default UI font size is 14px on a 16px base scale.
9197 // This means the default UI font size is 0.875rems.
9198 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
9199
9200 // We then determine the delta between a single rem and the default font
9201 // size scale.
9202 let default_font_size_delta = 1. - default_font_size_scale;
9203
9204 // Finally, we add this delta to 1rem to get the scale factor that
9205 // should be used to scale up the UI.
9206 1. + default_font_size_delta
9207 };
9208
9209 Some(pixels * rem_size_scale)
9210 }
9211 AbsoluteLength::Rems(rems) => {
9212 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
9213 }
9214 }
9215 }
9216 // We currently use single-line and auto-height editors in UI contexts,
9217 // so we don't want to scale everything with the buffer font size, as it
9218 // ends up looking off.
9219 _ => None,
9220 }
9221 }
9222
9223 fn editor_with_selections(&self, cx: &App) -> Option<Entity<Editor>> {
9224 if let EditorMode::Minimap { parent } = self.editor.read(cx).mode() {
9225 parent.upgrade()
9226 } else {
9227 Some(self.editor.clone())
9228 }
9229 }
9230}
9231
9232#[derive(Default)]
9233pub struct EditorRequestLayoutState {
9234 // We use prepaint depth to limit the number of times prepaint is
9235 // called recursively. We need this so that we can update stale
9236 // data for e.g. block heights in block map.
9237 prepaint_depth: Rc<Cell<usize>>,
9238}
9239
9240impl EditorRequestLayoutState {
9241 // In ideal conditions we only need one more subsequent prepaint call for resize to take effect.
9242 // i.e. MAX_PREPAINT_DEPTH = 2, but since moving blocks inline (place_near), more lines from
9243 // below get exposed, and we end up querying blocks for those lines too in subsequent renders.
9244 // Setting MAX_PREPAINT_DEPTH = 3, passes all tests. Just to be on the safe side we set it to 5, so
9245 // that subsequent shrinking does not lead to incorrect block placing.
9246 const MAX_PREPAINT_DEPTH: usize = 5;
9247
9248 fn increment_prepaint_depth(&self) -> EditorPrepaintGuard {
9249 let depth = self.prepaint_depth.get();
9250 self.prepaint_depth.set(depth + 1);
9251 EditorPrepaintGuard {
9252 prepaint_depth: self.prepaint_depth.clone(),
9253 }
9254 }
9255
9256 fn can_prepaint(&self) -> bool {
9257 self.prepaint_depth.get() < Self::MAX_PREPAINT_DEPTH
9258 }
9259}
9260
9261struct EditorPrepaintGuard {
9262 prepaint_depth: Rc<Cell<usize>>,
9263}
9264
9265impl Drop for EditorPrepaintGuard {
9266 fn drop(&mut self) {
9267 let depth = self.prepaint_depth.get();
9268 self.prepaint_depth.set(depth.saturating_sub(1));
9269 }
9270}
9271
9272impl Element for EditorElement {
9273 type RequestLayoutState = EditorRequestLayoutState;
9274 type PrepaintState = EditorLayout;
9275
9276 fn id(&self) -> Option<ElementId> {
9277 None
9278 }
9279
9280 fn source_location(&self) -> Option<&'static core::panic::Location<'static>> {
9281 None
9282 }
9283
9284 fn request_layout(
9285 &mut self,
9286 _: Option<&GlobalElementId>,
9287 _inspector_id: Option<&gpui::InspectorElementId>,
9288 window: &mut Window,
9289 cx: &mut App,
9290 ) -> (gpui::LayoutId, Self::RequestLayoutState) {
9291 let rem_size = self.rem_size(cx);
9292 window.with_rem_size(rem_size, |window| {
9293 self.editor.update(cx, |editor, cx| {
9294 editor.set_style(self.style.clone(), window, cx);
9295
9296 let layout_id = match editor.mode {
9297 EditorMode::SingleLine => {
9298 let rem_size = window.rem_size();
9299 let height = self.style.text.line_height_in_pixels(rem_size);
9300 let mut style = Style::default();
9301 style.size.height = height.into();
9302 style.size.width = relative(1.).into();
9303 window.request_layout(style, None, cx)
9304 }
9305 EditorMode::AutoHeight {
9306 min_lines,
9307 max_lines,
9308 } => {
9309 let editor_handle = cx.entity();
9310 window.request_measured_layout(
9311 Style::default(),
9312 move |known_dimensions, available_space, window, cx| {
9313 editor_handle
9314 .update(cx, |editor, cx| {
9315 compute_auto_height_layout(
9316 editor,
9317 min_lines,
9318 max_lines,
9319 known_dimensions,
9320 available_space.width,
9321 window,
9322 cx,
9323 )
9324 })
9325 .unwrap_or_default()
9326 },
9327 )
9328 }
9329 EditorMode::Minimap { .. } => {
9330 let mut style = Style::default();
9331 style.size.width = relative(1.).into();
9332 style.size.height = relative(1.).into();
9333 window.request_layout(style, None, cx)
9334 }
9335 EditorMode::Full {
9336 sizing_behavior, ..
9337 } => {
9338 let mut style = Style::default();
9339 style.size.width = relative(1.).into();
9340 if sizing_behavior == SizingBehavior::SizeByContent {
9341 let snapshot = editor.snapshot(window, cx);
9342 let line_height =
9343 self.style.text.line_height_in_pixels(window.rem_size());
9344 let scroll_height =
9345 (snapshot.max_point().row().next_row().0 as f32) * line_height;
9346 style.size.height = scroll_height.into();
9347 } else {
9348 style.size.height = relative(1.).into();
9349 }
9350 window.request_layout(style, None, cx)
9351 }
9352 };
9353
9354 (layout_id, EditorRequestLayoutState::default())
9355 })
9356 })
9357 }
9358
9359 fn prepaint(
9360 &mut self,
9361 _: Option<&GlobalElementId>,
9362 _inspector_id: Option<&gpui::InspectorElementId>,
9363 bounds: Bounds<Pixels>,
9364 request_layout: &mut Self::RequestLayoutState,
9365 window: &mut Window,
9366 cx: &mut App,
9367 ) -> Self::PrepaintState {
9368 let _prepaint_depth_guard = request_layout.increment_prepaint_depth();
9369 let text_style = TextStyleRefinement {
9370 font_size: Some(self.style.text.font_size),
9371 line_height: Some(self.style.text.line_height),
9372 ..Default::default()
9373 };
9374
9375 let is_minimap = self.editor.read(cx).mode.is_minimap();
9376 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
9377
9378 if !is_minimap {
9379 let focus_handle = self.editor.focus_handle(cx);
9380 window.set_view_id(self.editor.entity_id());
9381 window.set_focus_handle(&focus_handle, cx);
9382 }
9383
9384 let rem_size = self.rem_size(cx);
9385 window.with_rem_size(rem_size, |window| {
9386 window.with_text_style(Some(text_style), |window| {
9387 window.with_content_mask(Some(ContentMask { bounds }), |window| {
9388 let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| {
9389 (editor.snapshot(window, cx), editor.read_only(cx))
9390 });
9391 let style = &self.style;
9392
9393 let rem_size = window.rem_size();
9394 let font_id = window.text_system().resolve_font(&style.text.font());
9395 let font_size = style.text.font_size.to_pixels(rem_size);
9396 let line_height = style.text.line_height_in_pixels(rem_size);
9397 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
9398 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
9399 let glyph_grid_cell = size(em_advance, line_height);
9400
9401 let gutter_dimensions =
9402 snapshot.gutter_dimensions(font_id, font_size, style, window, cx);
9403 let text_width = bounds.size.width - gutter_dimensions.width;
9404
9405 let settings = EditorSettings::get_global(cx);
9406 let scrollbars_shown = settings.scrollbar.show != ShowScrollbar::Never;
9407 let vertical_scrollbar_width = (scrollbars_shown
9408 && settings.scrollbar.axes.vertical
9409 && self.editor.read(cx).show_scrollbars.vertical)
9410 .then_some(style.scrollbar_width)
9411 .unwrap_or_default();
9412 let minimap_width = self
9413 .get_minimap_width(
9414 &settings.minimap,
9415 scrollbars_shown,
9416 text_width,
9417 em_width,
9418 font_size,
9419 rem_size,
9420 cx,
9421 )
9422 .unwrap_or_default();
9423
9424 let right_margin = minimap_width + vertical_scrollbar_width;
9425
9426 let editor_width =
9427 text_width - gutter_dimensions.margin - 2 * em_width - right_margin;
9428 let editor_margins = EditorMargins {
9429 gutter: gutter_dimensions,
9430 right: right_margin,
9431 };
9432
9433 snapshot = self.editor.update(cx, |editor, cx| {
9434 editor.last_bounds = Some(bounds);
9435 editor.gutter_dimensions = gutter_dimensions;
9436 editor.set_visible_line_count(
9437 (bounds.size.height / line_height) as f64,
9438 window,
9439 cx,
9440 );
9441 editor.set_visible_column_count(f64::from(editor_width / em_advance));
9442
9443 if matches!(
9444 editor.mode,
9445 EditorMode::AutoHeight { .. } | EditorMode::Minimap { .. }
9446 ) {
9447 snapshot
9448 } else {
9449 let wrap_width_for = |column: u32| (column as f32 * em_advance).ceil();
9450 let wrap_width = match editor.soft_wrap_mode(cx) {
9451 SoftWrap::GitDiff => None,
9452 SoftWrap::None => Some(wrap_width_for(MAX_LINE_LEN as u32 / 2)),
9453 SoftWrap::EditorWidth => Some(editor_width),
9454 SoftWrap::Column(column) => Some(wrap_width_for(column)),
9455 SoftWrap::Bounded(column) => {
9456 Some(editor_width.min(wrap_width_for(column)))
9457 }
9458 };
9459
9460 if editor.set_wrap_width(wrap_width, cx) {
9461 editor.snapshot(window, cx)
9462 } else {
9463 snapshot
9464 }
9465 }
9466 });
9467
9468 let hitbox = window.insert_hitbox(bounds, HitboxBehavior::Normal);
9469 let gutter_hitbox = window.insert_hitbox(
9470 gutter_bounds(bounds, gutter_dimensions),
9471 HitboxBehavior::Normal,
9472 );
9473 let text_hitbox = window.insert_hitbox(
9474 Bounds {
9475 origin: gutter_hitbox.top_right(),
9476 size: size(text_width, bounds.size.height),
9477 },
9478 HitboxBehavior::Normal,
9479 );
9480
9481 // Offset the content_bounds from the text_bounds by the gutter margin (which
9482 // is roughly half a character wide) to make hit testing work more like how we want.
9483 let content_offset = point(editor_margins.gutter.margin, Pixels::ZERO);
9484 let content_origin = text_hitbox.origin + content_offset;
9485
9486 let height_in_lines = f64::from(bounds.size.height / line_height);
9487 let max_row = snapshot.max_point().row().as_f64();
9488
9489 // Calculate how much of the editor is clipped by parent containers (e.g., List).
9490 // This allows us to only render lines that are actually visible, which is
9491 // critical for performance when large AutoHeight editors are inside Lists.
9492 let visible_bounds = window.content_mask().bounds;
9493 let clipped_top = (visible_bounds.origin.y - bounds.origin.y).max(px(0.));
9494 let clipped_top_in_lines = f64::from(clipped_top / line_height);
9495 let visible_height_in_lines =
9496 f64::from(visible_bounds.size.height / line_height);
9497
9498 // The max scroll position for the top of the window
9499 let max_scroll_top = if matches!(
9500 snapshot.mode,
9501 EditorMode::SingleLine
9502 | EditorMode::AutoHeight { .. }
9503 | EditorMode::Full {
9504 sizing_behavior: SizingBehavior::ExcludeOverscrollMargin
9505 | SizingBehavior::SizeByContent,
9506 ..
9507 }
9508 ) {
9509 (max_row - height_in_lines + 1.).max(0.)
9510 } else {
9511 let settings = EditorSettings::get_global(cx);
9512 match settings.scroll_beyond_last_line {
9513 ScrollBeyondLastLine::OnePage => max_row,
9514 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
9515 ScrollBeyondLastLine::VerticalScrollMargin => {
9516 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
9517 .max(0.)
9518 }
9519 }
9520 };
9521
9522 let (
9523 autoscroll_request,
9524 autoscroll_containing_element,
9525 needs_horizontal_autoscroll,
9526 ) = self.editor.update(cx, |editor, cx| {
9527 let autoscroll_request = editor.scroll_manager.take_autoscroll_request();
9528
9529 let autoscroll_containing_element =
9530 autoscroll_request.is_some() || editor.has_pending_selection();
9531
9532 let (needs_horizontal_autoscroll, was_scrolled) = editor
9533 .autoscroll_vertically(
9534 bounds,
9535 line_height,
9536 max_scroll_top,
9537 autoscroll_request,
9538 window,
9539 cx,
9540 );
9541 if was_scrolled.0 {
9542 snapshot = editor.snapshot(window, cx);
9543 }
9544 (
9545 autoscroll_request,
9546 autoscroll_containing_element,
9547 needs_horizontal_autoscroll,
9548 )
9549 });
9550
9551 let mut scroll_position = snapshot.scroll_position();
9552 // The scroll position is a fractional point, the whole number of which represents
9553 // the top of the window in terms of display rows.
9554 // We add clipped_top_in_lines to skip rows that are clipped by parent containers,
9555 // but we don't modify scroll_position itself since the parent handles positioning.
9556 let max_row = snapshot.max_point().row();
9557 let start_row = cmp::min(
9558 DisplayRow((scroll_position.y + clipped_top_in_lines).floor() as u32),
9559 max_row,
9560 );
9561 let end_row = cmp::min(
9562 (scroll_position.y + clipped_top_in_lines + visible_height_in_lines).ceil()
9563 as u32,
9564 max_row.next_row().0,
9565 );
9566 let end_row = DisplayRow(end_row);
9567
9568 let row_infos = snapshot // note we only get the visual range
9569 .row_infos(start_row)
9570 .take((start_row..end_row).len())
9571 .collect::<Vec<RowInfo>>();
9572 let is_row_soft_wrapped = |row: usize| {
9573 row_infos
9574 .get(row)
9575 .is_none_or(|info| info.buffer_row.is_none())
9576 };
9577
9578 let start_anchor = if start_row == Default::default() {
9579 Anchor::min()
9580 } else {
9581 snapshot.buffer_snapshot().anchor_before(
9582 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
9583 )
9584 };
9585 let end_anchor = if end_row > max_row {
9586 Anchor::max()
9587 } else {
9588 snapshot.buffer_snapshot().anchor_before(
9589 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
9590 )
9591 };
9592
9593 let mut highlighted_rows = self
9594 .editor
9595 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
9596
9597 let is_light = cx.theme().appearance().is_light();
9598
9599 let mut highlighted_ranges = self
9600 .editor_with_selections(cx)
9601 .map(|editor| {
9602 editor.read(cx).background_highlights_in_range(
9603 start_anchor..end_anchor,
9604 &snapshot.display_snapshot,
9605 cx.theme(),
9606 )
9607 })
9608 .unwrap_or_default();
9609
9610 for (ix, row_info) in row_infos.iter().enumerate() {
9611 let Some(diff_status) = row_info.diff_status else {
9612 continue;
9613 };
9614
9615 let background_color = match diff_status.kind {
9616 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
9617 DiffHunkStatusKind::Deleted => {
9618 cx.theme().colors().version_control_deleted
9619 }
9620 DiffHunkStatusKind::Modified => {
9621 debug_panic!("modified diff status for row info");
9622 continue;
9623 }
9624 };
9625
9626 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
9627
9628 let hollow_highlight = LineHighlight {
9629 background: (background_color.opacity(if is_light {
9630 0.08
9631 } else {
9632 0.06
9633 }))
9634 .into(),
9635 border: Some(if is_light {
9636 background_color.opacity(0.48)
9637 } else {
9638 background_color.opacity(0.36)
9639 }),
9640 include_gutter: true,
9641 type_id: None,
9642 };
9643
9644 let filled_highlight = LineHighlight {
9645 background: solid_background(background_color.opacity(hunk_opacity)),
9646 border: None,
9647 include_gutter: true,
9648 type_id: None,
9649 };
9650
9651 let background = if Self::diff_hunk_hollow(diff_status, cx) {
9652 hollow_highlight
9653 } else {
9654 filled_highlight
9655 };
9656
9657 let base_display_point =
9658 DisplayPoint::new(start_row + DisplayRow(ix as u32), 0);
9659
9660 highlighted_rows
9661 .entry(base_display_point.row())
9662 .or_insert(background);
9663 }
9664
9665 let highlighted_gutter_ranges =
9666 self.editor.read(cx).gutter_highlights_in_range(
9667 start_anchor..end_anchor,
9668 &snapshot.display_snapshot,
9669 cx,
9670 );
9671
9672 let document_colors = self
9673 .editor
9674 .read(cx)
9675 .colors
9676 .as_ref()
9677 .map(|colors| colors.editor_display_highlights(&snapshot));
9678 let redacted_ranges = self.editor.read(cx).redacted_ranges(
9679 start_anchor..end_anchor,
9680 &snapshot.display_snapshot,
9681 cx,
9682 );
9683
9684 let (local_selections, selected_buffer_ids, latest_selection_anchors): (
9685 Vec<Selection<Point>>,
9686 Vec<BufferId>,
9687 HashMap<BufferId, Anchor>,
9688 ) = self
9689 .editor_with_selections(cx)
9690 .map(|editor| {
9691 editor.update(cx, |editor, cx| {
9692 let all_selections =
9693 editor.selections.all::<Point>(&snapshot.display_snapshot);
9694 let all_anchor_selections =
9695 editor.selections.all_anchors(&snapshot.display_snapshot);
9696 let selected_buffer_ids =
9697 if editor.buffer_kind(cx) == ItemBufferKind::Singleton {
9698 Vec::new()
9699 } else {
9700 let mut selected_buffer_ids =
9701 Vec::with_capacity(all_selections.len());
9702
9703 for selection in all_selections {
9704 for buffer_id in snapshot
9705 .buffer_snapshot()
9706 .buffer_ids_for_range(selection.range())
9707 {
9708 if selected_buffer_ids.last() != Some(&buffer_id) {
9709 selected_buffer_ids.push(buffer_id);
9710 }
9711 }
9712 }
9713
9714 selected_buffer_ids
9715 };
9716
9717 let mut selections = editor.selections.disjoint_in_range(
9718 start_anchor..end_anchor,
9719 &snapshot.display_snapshot,
9720 );
9721 selections
9722 .extend(editor.selections.pending(&snapshot.display_snapshot));
9723
9724 let mut anchors_by_buffer: HashMap<BufferId, (usize, Anchor)> =
9725 HashMap::default();
9726 for selection in all_anchor_selections.iter() {
9727 let head = selection.head();
9728 if let Some(buffer_id) = head.text_anchor.buffer_id {
9729 anchors_by_buffer
9730 .entry(buffer_id)
9731 .and_modify(|(latest_id, latest_anchor)| {
9732 if selection.id > *latest_id {
9733 *latest_id = selection.id;
9734 *latest_anchor = head;
9735 }
9736 })
9737 .or_insert((selection.id, head));
9738 }
9739 }
9740 let latest_selection_anchors = anchors_by_buffer
9741 .into_iter()
9742 .map(|(buffer_id, (_, anchor))| (buffer_id, anchor))
9743 .collect();
9744
9745 (selections, selected_buffer_ids, latest_selection_anchors)
9746 })
9747 })
9748 .unwrap_or_else(|| (Vec::new(), Vec::new(), HashMap::default()));
9749
9750 let (selections, mut active_rows, newest_selection_head) = self
9751 .layout_selections(
9752 start_anchor,
9753 end_anchor,
9754 &local_selections,
9755 &snapshot,
9756 start_row,
9757 end_row,
9758 window,
9759 cx,
9760 );
9761
9762 // relative rows are based on newest selection, even outside the visible area
9763 let current_selection_head = self.editor.update(cx, |editor, cx| {
9764 (editor.selections.count() != 0).then(|| {
9765 let newest = editor
9766 .selections
9767 .newest::<Point>(&editor.display_snapshot(cx));
9768
9769 SelectionLayout::new(
9770 newest,
9771 editor.selections.line_mode(),
9772 editor.cursor_offset_on_selection,
9773 editor.cursor_shape,
9774 &snapshot,
9775 true,
9776 true,
9777 None,
9778 )
9779 .head
9780 .row()
9781 })
9782 });
9783
9784 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
9785 editor.active_breakpoints(start_row..end_row, window, cx)
9786 });
9787 for (display_row, (_, bp, state)) in &breakpoint_rows {
9788 if bp.is_enabled() && state.is_none_or(|s| s.verified) {
9789 active_rows.entry(*display_row).or_default().breakpoint = true;
9790 }
9791 }
9792
9793 let line_numbers = self.layout_line_numbers(
9794 Some(&gutter_hitbox),
9795 gutter_dimensions,
9796 line_height,
9797 scroll_position,
9798 start_row..end_row,
9799 &row_infos,
9800 &active_rows,
9801 current_selection_head,
9802 &snapshot,
9803 window,
9804 cx,
9805 );
9806
9807 // We add the gutter breakpoint indicator to breakpoint_rows after painting
9808 // line numbers so we don't paint a line number debug accent color if a user
9809 // has their mouse over that line when a breakpoint isn't there
9810 self.editor.update(cx, |editor, _| {
9811 if let Some(phantom_breakpoint) = &mut editor
9812 .gutter_breakpoint_indicator
9813 .0
9814 .filter(|phantom_breakpoint| phantom_breakpoint.is_active)
9815 {
9816 // Is there a non-phantom breakpoint on this line?
9817 phantom_breakpoint.collides_with_existing_breakpoint = true;
9818 breakpoint_rows
9819 .entry(phantom_breakpoint.display_row)
9820 .or_insert_with(|| {
9821 let position = snapshot.display_point_to_anchor(
9822 DisplayPoint::new(phantom_breakpoint.display_row, 0),
9823 Bias::Right,
9824 );
9825 let breakpoint = Breakpoint::new_standard();
9826 phantom_breakpoint.collides_with_existing_breakpoint = false;
9827 (position, breakpoint, None)
9828 });
9829 }
9830 });
9831
9832 let mut expand_toggles =
9833 window.with_element_namespace("expand_toggles", |window| {
9834 self.layout_expand_toggles(
9835 &gutter_hitbox,
9836 gutter_dimensions,
9837 em_width,
9838 line_height,
9839 scroll_position,
9840 &row_infos,
9841 window,
9842 cx,
9843 )
9844 });
9845
9846 let mut crease_toggles =
9847 window.with_element_namespace("crease_toggles", |window| {
9848 self.layout_crease_toggles(
9849 start_row..end_row,
9850 &row_infos,
9851 &active_rows,
9852 &snapshot,
9853 window,
9854 cx,
9855 )
9856 });
9857 let crease_trailers =
9858 window.with_element_namespace("crease_trailers", |window| {
9859 self.layout_crease_trailers(
9860 row_infos.iter().cloned(),
9861 &snapshot,
9862 window,
9863 cx,
9864 )
9865 });
9866
9867 let display_hunks = self.layout_gutter_diff_hunks(
9868 line_height,
9869 &gutter_hitbox,
9870 start_row..end_row,
9871 &snapshot,
9872 window,
9873 cx,
9874 );
9875
9876 Self::layout_word_diff_highlights(
9877 &display_hunks,
9878 &row_infos,
9879 start_row,
9880 &snapshot,
9881 &mut highlighted_ranges,
9882 cx,
9883 );
9884
9885 let merged_highlighted_ranges =
9886 if let Some((_, colors)) = document_colors.as_ref() {
9887 &highlighted_ranges
9888 .clone()
9889 .into_iter()
9890 .chain(colors.clone())
9891 .collect()
9892 } else {
9893 &highlighted_ranges
9894 };
9895 let bg_segments_per_row = Self::bg_segments_per_row(
9896 start_row..end_row,
9897 &selections,
9898 &merged_highlighted_ranges,
9899 self.style.background,
9900 );
9901
9902 let mut line_layouts = Self::layout_lines(
9903 start_row..end_row,
9904 &snapshot,
9905 &self.style,
9906 editor_width,
9907 is_row_soft_wrapped,
9908 &bg_segments_per_row,
9909 window,
9910 cx,
9911 );
9912 let new_renderer_widths = (!is_minimap).then(|| {
9913 line_layouts
9914 .iter()
9915 .flat_map(|layout| &layout.fragments)
9916 .filter_map(|fragment| {
9917 if let LineFragment::Element { id, size, .. } = fragment {
9918 Some((*id, size.width))
9919 } else {
9920 None
9921 }
9922 })
9923 });
9924 if new_renderer_widths.is_some_and(|new_renderer_widths| {
9925 self.editor.update(cx, |editor, cx| {
9926 editor.update_renderer_widths(new_renderer_widths, cx)
9927 })
9928 }) {
9929 // If the fold widths have changed, we need to prepaint
9930 // the element again to account for any changes in
9931 // wrapping.
9932 if request_layout.can_prepaint() {
9933 return self.prepaint(
9934 None,
9935 _inspector_id,
9936 bounds,
9937 request_layout,
9938 window,
9939 cx,
9940 );
9941 } else {
9942 debug_panic!(concat!(
9943 "skipping recursive prepaint at max depth. ",
9944 "renderer widths may be stale."
9945 ));
9946 }
9947 }
9948
9949 let longest_line_blame_width = self
9950 .editor
9951 .update(cx, |editor, cx| {
9952 if !editor.show_git_blame_inline {
9953 return None;
9954 }
9955 let blame = editor.blame.as_ref()?;
9956 let (_, blame_entry) = blame
9957 .update(cx, |blame, cx| {
9958 let row_infos =
9959 snapshot.row_infos(snapshot.longest_row()).next()?;
9960 blame.blame_for_rows(&[row_infos], cx).next()
9961 })
9962 .flatten()?;
9963 let mut element = render_inline_blame_entry(blame_entry, style, cx)?;
9964 let inline_blame_padding =
9965 ProjectSettings::get_global(cx).git.inline_blame.padding as f32
9966 * em_advance;
9967 Some(
9968 element
9969 .layout_as_root(AvailableSpace::min_size(), window, cx)
9970 .width
9971 + inline_blame_padding,
9972 )
9973 })
9974 .unwrap_or(Pixels::ZERO);
9975
9976 let longest_line_width = layout_line(
9977 snapshot.longest_row(),
9978 &snapshot,
9979 style,
9980 editor_width,
9981 is_row_soft_wrapped,
9982 window,
9983 cx,
9984 )
9985 .width;
9986
9987 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
9988 text_hitbox.bounds,
9989 glyph_grid_cell,
9990 size(
9991 longest_line_width,
9992 Pixels::from(max_row.as_f64() * f64::from(line_height)),
9993 ),
9994 longest_line_blame_width,
9995 EditorSettings::get_global(cx),
9996 );
9997
9998 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
9999
10000 let sticky_header_excerpt = if snapshot.buffer_snapshot().show_headers() {
10001 snapshot.sticky_header_excerpt(scroll_position.y)
10002 } else {
10003 None
10004 };
10005 let sticky_header_excerpt_id =
10006 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
10007
10008 let blocks = (!is_minimap)
10009 .then(|| {
10010 window.with_element_namespace("blocks", |window| {
10011 self.render_blocks(
10012 start_row..end_row,
10013 &snapshot,
10014 &hitbox,
10015 &text_hitbox,
10016 editor_width,
10017 &mut scroll_width,
10018 &editor_margins,
10019 em_width,
10020 gutter_dimensions.full_width(),
10021 line_height,
10022 &mut line_layouts,
10023 &local_selections,
10024 &selected_buffer_ids,
10025 &latest_selection_anchors,
10026 is_row_soft_wrapped,
10027 sticky_header_excerpt_id,
10028 window,
10029 cx,
10030 )
10031 })
10032 })
10033 .unwrap_or_default();
10034 let RenderBlocksOutput {
10035 mut blocks,
10036 row_block_types,
10037 resized_blocks,
10038 } = blocks;
10039 if let Some(resized_blocks) = resized_blocks {
10040 self.editor.update(cx, |editor, cx| {
10041 editor.resize_blocks(
10042 resized_blocks,
10043 autoscroll_request.map(|(autoscroll, _)| autoscroll),
10044 cx,
10045 )
10046 });
10047 if request_layout.can_prepaint() {
10048 return self.prepaint(
10049 None,
10050 _inspector_id,
10051 bounds,
10052 request_layout,
10053 window,
10054 cx,
10055 );
10056 } else {
10057 debug_panic!(concat!(
10058 "skipping recursive prepaint at max depth. ",
10059 "block layout may be stale."
10060 ));
10061 }
10062 }
10063
10064 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
10065 window.with_element_namespace("blocks", |window| {
10066 self.layout_sticky_buffer_header(
10067 sticky_header_excerpt,
10068 scroll_position,
10069 line_height,
10070 right_margin,
10071 &snapshot,
10072 &hitbox,
10073 &selected_buffer_ids,
10074 &blocks,
10075 &latest_selection_anchors,
10076 window,
10077 cx,
10078 )
10079 })
10080 });
10081
10082 let start_buffer_row =
10083 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot()).row);
10084 let end_buffer_row =
10085 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot()).row);
10086
10087 let scroll_max: gpui::Point<ScrollPixelOffset> = point(
10088 ScrollPixelOffset::from(
10089 ((scroll_width - editor_width) / em_advance).max(0.0),
10090 ),
10091 max_scroll_top,
10092 );
10093
10094 self.editor.update(cx, |editor, cx| {
10095 if editor.scroll_manager.clamp_scroll_left(scroll_max.x) {
10096 scroll_position.x = scroll_position.x.min(scroll_max.x);
10097 }
10098
10099 if needs_horizontal_autoscroll.0
10100 && let Some(new_scroll_position) = editor.autoscroll_horizontally(
10101 start_row,
10102 editor_width,
10103 scroll_width,
10104 em_advance,
10105 &line_layouts,
10106 autoscroll_request,
10107 window,
10108 cx,
10109 )
10110 {
10111 scroll_position = new_scroll_position;
10112 }
10113 });
10114
10115 let scroll_pixel_position = point(
10116 scroll_position.x * f64::from(em_advance),
10117 scroll_position.y * f64::from(line_height),
10118 );
10119 let sticky_headers = if !is_minimap
10120 && is_singleton
10121 && EditorSettings::get_global(cx).sticky_scroll.enabled
10122 {
10123 let relative = self.editor.read(cx).relative_line_numbers(cx);
10124 self.layout_sticky_headers(
10125 &snapshot,
10126 editor_width,
10127 is_row_soft_wrapped,
10128 line_height,
10129 scroll_pixel_position,
10130 content_origin,
10131 &gutter_dimensions,
10132 &gutter_hitbox,
10133 &text_hitbox,
10134 &style,
10135 relative,
10136 current_selection_head,
10137 window,
10138 cx,
10139 )
10140 } else {
10141 None
10142 };
10143 self.editor.update(cx, |editor, _| {
10144 editor.scroll_manager.set_sticky_header_line_count(
10145 sticky_headers.as_ref().map_or(0, |h| h.lines.len()),
10146 );
10147 });
10148 let indent_guides = self.layout_indent_guides(
10149 content_origin,
10150 text_hitbox.origin,
10151 start_buffer_row..end_buffer_row,
10152 scroll_pixel_position,
10153 line_height,
10154 &snapshot,
10155 window,
10156 cx,
10157 );
10158
10159 let crease_trailers =
10160 window.with_element_namespace("crease_trailers", |window| {
10161 self.prepaint_crease_trailers(
10162 crease_trailers,
10163 &line_layouts,
10164 line_height,
10165 content_origin,
10166 scroll_pixel_position,
10167 em_width,
10168 window,
10169 cx,
10170 )
10171 });
10172
10173 let (edit_prediction_popover, edit_prediction_popover_origin) = self
10174 .editor
10175 .update(cx, |editor, cx| {
10176 editor.render_edit_prediction_popover(
10177 &text_hitbox.bounds,
10178 content_origin,
10179 right_margin,
10180 &snapshot,
10181 start_row..end_row,
10182 scroll_position.y,
10183 scroll_position.y + height_in_lines,
10184 &line_layouts,
10185 line_height,
10186 scroll_position,
10187 scroll_pixel_position,
10188 newest_selection_head,
10189 editor_width,
10190 style,
10191 window,
10192 cx,
10193 )
10194 })
10195 .unzip();
10196
10197 let mut inline_diagnostics = self.layout_inline_diagnostics(
10198 &line_layouts,
10199 &crease_trailers,
10200 &row_block_types,
10201 content_origin,
10202 scroll_position,
10203 scroll_pixel_position,
10204 edit_prediction_popover_origin,
10205 start_row,
10206 end_row,
10207 line_height,
10208 em_width,
10209 style,
10210 window,
10211 cx,
10212 );
10213
10214 let mut inline_blame_layout = None;
10215 let mut inline_code_actions = None;
10216 if let Some(newest_selection_head) = newest_selection_head {
10217 let display_row = newest_selection_head.row();
10218 if (start_row..end_row).contains(&display_row)
10219 && !row_block_types.contains_key(&display_row)
10220 {
10221 inline_code_actions = self.layout_inline_code_actions(
10222 newest_selection_head,
10223 content_origin,
10224 scroll_position,
10225 scroll_pixel_position,
10226 line_height,
10227 &snapshot,
10228 window,
10229 cx,
10230 );
10231
10232 let line_ix = display_row.minus(start_row) as usize;
10233 if let (Some(row_info), Some(line_layout), Some(crease_trailer)) = (
10234 row_infos.get(line_ix),
10235 line_layouts.get(line_ix),
10236 crease_trailers.get(line_ix),
10237 ) {
10238 let crease_trailer_layout = crease_trailer.as_ref();
10239 if let Some(layout) = self.layout_inline_blame(
10240 display_row,
10241 row_info,
10242 line_layout,
10243 crease_trailer_layout,
10244 em_width,
10245 content_origin,
10246 scroll_position,
10247 scroll_pixel_position,
10248 line_height,
10249 window,
10250 cx,
10251 ) {
10252 inline_blame_layout = Some(layout);
10253 // Blame overrides inline diagnostics
10254 inline_diagnostics.remove(&display_row);
10255 }
10256 } else {
10257 log::error!(
10258 "bug: line_ix {} is out of bounds - row_infos.len(): {}, \
10259 line_layouts.len(): {}, \
10260 crease_trailers.len(): {}",
10261 line_ix,
10262 row_infos.len(),
10263 line_layouts.len(),
10264 crease_trailers.len(),
10265 );
10266 }
10267 }
10268 }
10269
10270 let blamed_display_rows = self.layout_blame_entries(
10271 &row_infos,
10272 em_width,
10273 scroll_position,
10274 line_height,
10275 &gutter_hitbox,
10276 gutter_dimensions.git_blame_entries_width,
10277 window,
10278 cx,
10279 );
10280
10281 let line_elements = self.prepaint_lines(
10282 start_row,
10283 &mut line_layouts,
10284 line_height,
10285 scroll_position,
10286 scroll_pixel_position,
10287 content_origin,
10288 window,
10289 cx,
10290 );
10291
10292 window.with_element_namespace("blocks", |window| {
10293 self.layout_blocks(
10294 &mut blocks,
10295 &hitbox,
10296 line_height,
10297 scroll_position,
10298 scroll_pixel_position,
10299 window,
10300 cx,
10301 );
10302 });
10303
10304 let cursors = self.collect_cursors(&snapshot, cx);
10305 let visible_row_range = start_row..end_row;
10306 let non_visible_cursors = cursors
10307 .iter()
10308 .any(|c| !visible_row_range.contains(&c.0.row()));
10309
10310 let visible_cursors = self.layout_visible_cursors(
10311 &snapshot,
10312 &selections,
10313 &row_block_types,
10314 start_row..end_row,
10315 &line_layouts,
10316 &text_hitbox,
10317 content_origin,
10318 scroll_position,
10319 scroll_pixel_position,
10320 line_height,
10321 em_width,
10322 em_advance,
10323 autoscroll_containing_element,
10324 window,
10325 cx,
10326 );
10327
10328 let scrollbars_layout = self.layout_scrollbars(
10329 &snapshot,
10330 &scrollbar_layout_information,
10331 content_offset,
10332 scroll_position,
10333 non_visible_cursors,
10334 right_margin,
10335 editor_width,
10336 window,
10337 cx,
10338 );
10339
10340 let gutter_settings = EditorSettings::get_global(cx).gutter;
10341
10342 let context_menu_layout =
10343 if let Some(newest_selection_head) = newest_selection_head {
10344 let newest_selection_point =
10345 newest_selection_head.to_point(&snapshot.display_snapshot);
10346 if (start_row..end_row).contains(&newest_selection_head.row()) {
10347 self.layout_cursor_popovers(
10348 line_height,
10349 &text_hitbox,
10350 content_origin,
10351 right_margin,
10352 start_row,
10353 scroll_pixel_position,
10354 &line_layouts,
10355 newest_selection_head,
10356 newest_selection_point,
10357 style,
10358 window,
10359 cx,
10360 )
10361 } else {
10362 None
10363 }
10364 } else {
10365 None
10366 };
10367
10368 self.layout_gutter_menu(
10369 line_height,
10370 &text_hitbox,
10371 content_origin,
10372 right_margin,
10373 scroll_pixel_position,
10374 gutter_dimensions.width - gutter_dimensions.left_padding,
10375 window,
10376 cx,
10377 );
10378
10379 let test_indicators = if gutter_settings.runnables {
10380 self.layout_run_indicators(
10381 line_height,
10382 start_row..end_row,
10383 &row_infos,
10384 scroll_position,
10385 &gutter_dimensions,
10386 &gutter_hitbox,
10387 &snapshot,
10388 &mut breakpoint_rows,
10389 window,
10390 cx,
10391 )
10392 } else {
10393 Vec::new()
10394 };
10395
10396 let show_breakpoints = snapshot
10397 .show_breakpoints
10398 .unwrap_or(gutter_settings.breakpoints);
10399 let breakpoints = if show_breakpoints {
10400 self.layout_breakpoints(
10401 line_height,
10402 start_row..end_row,
10403 scroll_position,
10404 &gutter_dimensions,
10405 &gutter_hitbox,
10406 &snapshot,
10407 breakpoint_rows,
10408 &row_infos,
10409 window,
10410 cx,
10411 )
10412 } else {
10413 Vec::new()
10414 };
10415
10416 let git_gutter_width = Self::gutter_strip_width(line_height)
10417 + gutter_dimensions
10418 .git_blame_entries_width
10419 .unwrap_or_default();
10420 let available_width = gutter_dimensions.left_padding - git_gutter_width;
10421
10422 let max_line_number_length = self
10423 .editor
10424 .read(cx)
10425 .buffer()
10426 .read(cx)
10427 .snapshot(cx)
10428 .widest_line_number()
10429 .ilog10()
10430 + 1;
10431
10432 let diff_review_button = self
10433 .should_render_diff_review_button(start_row..end_row, &row_infos, cx)
10434 .map(|(display_row, buffer_row)| {
10435 let is_wide = max_line_number_length
10436 >= EditorSettings::get_global(cx).gutter.min_line_number_digits
10437 as u32
10438 && buffer_row.is_some_and(|row| {
10439 (row + 1).ilog10() + 1 == max_line_number_length
10440 })
10441 || gutter_dimensions.right_padding == px(0.);
10442
10443 let button_width = if is_wide {
10444 available_width - px(6.)
10445 } else {
10446 available_width + em_width - px(6.)
10447 };
10448
10449 let button = self.editor.update(cx, |editor, cx| {
10450 editor
10451 .render_diff_review_button(display_row, button_width, cx)
10452 .into_any_element()
10453 });
10454 prepaint_gutter_button(
10455 button,
10456 display_row,
10457 line_height,
10458 &gutter_dimensions,
10459 scroll_position,
10460 &gutter_hitbox,
10461 window,
10462 cx,
10463 )
10464 });
10465
10466 self.layout_signature_help(
10467 &hitbox,
10468 content_origin,
10469 scroll_pixel_position,
10470 newest_selection_head,
10471 start_row,
10472 &line_layouts,
10473 line_height,
10474 em_width,
10475 context_menu_layout,
10476 window,
10477 cx,
10478 );
10479
10480 if !cx.has_active_drag() {
10481 self.layout_hover_popovers(
10482 &snapshot,
10483 &hitbox,
10484 start_row..end_row,
10485 content_origin,
10486 scroll_pixel_position,
10487 &line_layouts,
10488 line_height,
10489 em_width,
10490 context_menu_layout,
10491 window,
10492 cx,
10493 );
10494
10495 self.layout_blame_popover(&snapshot, &hitbox, line_height, window, cx);
10496 }
10497
10498 let mouse_context_menu = self.layout_mouse_context_menu(
10499 &snapshot,
10500 start_row..end_row,
10501 content_origin,
10502 window,
10503 cx,
10504 );
10505
10506 window.with_element_namespace("crease_toggles", |window| {
10507 self.prepaint_crease_toggles(
10508 &mut crease_toggles,
10509 line_height,
10510 &gutter_dimensions,
10511 gutter_settings,
10512 scroll_pixel_position,
10513 &gutter_hitbox,
10514 window,
10515 cx,
10516 )
10517 });
10518
10519 window.with_element_namespace("expand_toggles", |window| {
10520 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
10521 });
10522
10523 let wrap_guides = self.layout_wrap_guides(
10524 em_advance,
10525 scroll_position,
10526 content_origin,
10527 scrollbars_layout.as_ref(),
10528 vertical_scrollbar_width,
10529 &hitbox,
10530 window,
10531 cx,
10532 );
10533
10534 let minimap = window.with_element_namespace("minimap", |window| {
10535 self.layout_minimap(
10536 &snapshot,
10537 minimap_width,
10538 scroll_position,
10539 &scrollbar_layout_information,
10540 scrollbars_layout.as_ref(),
10541 window,
10542 cx,
10543 )
10544 });
10545
10546 let invisible_symbol_font_size = font_size / 2.;
10547 let whitespace_map = &self
10548 .editor
10549 .read(cx)
10550 .buffer
10551 .read(cx)
10552 .language_settings(cx)
10553 .whitespace_map;
10554
10555 let tab_char = whitespace_map.tab.clone();
10556 let tab_len = tab_char.len();
10557 let tab_invisible = window.text_system().shape_line(
10558 tab_char,
10559 invisible_symbol_font_size,
10560 &[TextRun {
10561 len: tab_len,
10562 font: self.style.text.font(),
10563 color: cx.theme().colors().editor_invisible,
10564 ..Default::default()
10565 }],
10566 None,
10567 );
10568
10569 let space_char = whitespace_map.space.clone();
10570 let space_len = space_char.len();
10571 let space_invisible = window.text_system().shape_line(
10572 space_char,
10573 invisible_symbol_font_size,
10574 &[TextRun {
10575 len: space_len,
10576 font: self.style.text.font(),
10577 color: cx.theme().colors().editor_invisible,
10578 ..Default::default()
10579 }],
10580 None,
10581 );
10582
10583 let mode = snapshot.mode.clone();
10584
10585 let (diff_hunk_controls, diff_hunk_control_bounds) = if is_read_only {
10586 (vec![], vec![])
10587 } else {
10588 self.layout_diff_hunk_controls(
10589 start_row..end_row,
10590 &row_infos,
10591 &text_hitbox,
10592 newest_selection_head,
10593 line_height,
10594 right_margin,
10595 scroll_pixel_position,
10596 &display_hunks,
10597 &highlighted_rows,
10598 self.editor.clone(),
10599 window,
10600 cx,
10601 )
10602 };
10603
10604 let position_map = Rc::new(PositionMap {
10605 size: bounds.size,
10606 visible_row_range,
10607 scroll_position,
10608 scroll_pixel_position,
10609 scroll_max,
10610 line_layouts,
10611 line_height,
10612 em_width,
10613 em_advance,
10614 snapshot,
10615 text_align: self.style.text.text_align,
10616 content_width: text_hitbox.size.width,
10617 gutter_hitbox: gutter_hitbox.clone(),
10618 text_hitbox: text_hitbox.clone(),
10619 inline_blame_bounds: inline_blame_layout
10620 .as_ref()
10621 .map(|layout| (layout.bounds, layout.buffer_id, layout.entry.clone())),
10622 display_hunks: display_hunks.clone(),
10623 diff_hunk_control_bounds,
10624 });
10625
10626 self.editor.update(cx, |editor, _| {
10627 editor.last_position_map = Some(position_map.clone())
10628 });
10629
10630 EditorLayout {
10631 mode,
10632 position_map,
10633 visible_display_row_range: start_row..end_row,
10634 wrap_guides,
10635 indent_guides,
10636 hitbox,
10637 gutter_hitbox,
10638 display_hunks,
10639 content_origin,
10640 scrollbars_layout,
10641 minimap,
10642 active_rows,
10643 highlighted_rows,
10644 highlighted_ranges,
10645 highlighted_gutter_ranges,
10646 redacted_ranges,
10647 document_colors,
10648 line_elements,
10649 line_numbers,
10650 blamed_display_rows,
10651 inline_diagnostics,
10652 inline_blame_layout,
10653 inline_code_actions,
10654 blocks,
10655 cursors,
10656 visible_cursors,
10657 selections,
10658 edit_prediction_popover,
10659 diff_hunk_controls,
10660 mouse_context_menu,
10661 test_indicators,
10662 breakpoints,
10663 diff_review_button,
10664 crease_toggles,
10665 crease_trailers,
10666 tab_invisible,
10667 space_invisible,
10668 sticky_buffer_header,
10669 sticky_headers,
10670 expand_toggles,
10671 text_align: self.style.text.text_align,
10672 content_width: text_hitbox.size.width,
10673 }
10674 })
10675 })
10676 })
10677 }
10678
10679 fn paint(
10680 &mut self,
10681 _: Option<&GlobalElementId>,
10682 _inspector_id: Option<&gpui::InspectorElementId>,
10683 bounds: Bounds<gpui::Pixels>,
10684 _: &mut Self::RequestLayoutState,
10685 layout: &mut Self::PrepaintState,
10686 window: &mut Window,
10687 cx: &mut App,
10688 ) {
10689 if !layout.mode.is_minimap() {
10690 let focus_handle = self.editor.focus_handle(cx);
10691 let key_context = self
10692 .editor
10693 .update(cx, |editor, cx| editor.key_context(window, cx));
10694
10695 window.set_key_context(key_context);
10696 window.handle_input(
10697 &focus_handle,
10698 ElementInputHandler::new(bounds, self.editor.clone()),
10699 cx,
10700 );
10701 self.register_actions(window, cx);
10702 self.register_key_listeners(window, cx, layout);
10703 }
10704
10705 let text_style = TextStyleRefinement {
10706 font_size: Some(self.style.text.font_size),
10707 line_height: Some(self.style.text.line_height),
10708 ..Default::default()
10709 };
10710 let rem_size = self.rem_size(cx);
10711 window.with_rem_size(rem_size, |window| {
10712 window.with_text_style(Some(text_style), |window| {
10713 window.with_content_mask(Some(ContentMask { bounds }), |window| {
10714 self.paint_mouse_listeners(layout, window, cx);
10715 self.paint_background(layout, window, cx);
10716 self.paint_indent_guides(layout, window, cx);
10717
10718 if layout.gutter_hitbox.size.width > Pixels::ZERO {
10719 self.paint_blamed_display_rows(layout, window, cx);
10720 self.paint_line_numbers(layout, window, cx);
10721 }
10722
10723 self.paint_text(layout, window, cx);
10724
10725 if layout.gutter_hitbox.size.width > Pixels::ZERO {
10726 self.paint_gutter_highlights(layout, window, cx);
10727 self.paint_gutter_indicators(layout, window, cx);
10728 }
10729
10730 if !layout.blocks.is_empty() {
10731 window.with_element_namespace("blocks", |window| {
10732 self.paint_blocks(layout, window, cx);
10733 });
10734 }
10735
10736 window.with_element_namespace("blocks", |window| {
10737 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
10738 sticky_header.paint(window, cx)
10739 }
10740 });
10741
10742 self.paint_sticky_headers(layout, window, cx);
10743 self.paint_minimap(layout, window, cx);
10744 self.paint_scrollbars(layout, window, cx);
10745 self.paint_edit_prediction_popover(layout, window, cx);
10746 self.paint_mouse_context_menu(layout, window, cx);
10747 });
10748 })
10749 })
10750 }
10751}
10752
10753pub(super) fn gutter_bounds(
10754 editor_bounds: Bounds<Pixels>,
10755 gutter_dimensions: GutterDimensions,
10756) -> Bounds<Pixels> {
10757 Bounds {
10758 origin: editor_bounds.origin,
10759 size: size(gutter_dimensions.width, editor_bounds.size.height),
10760 }
10761}
10762
10763#[derive(Clone, Copy)]
10764struct ContextMenuLayout {
10765 y_flipped: bool,
10766 bounds: Bounds<Pixels>,
10767}
10768
10769/// Holds information required for layouting the editor scrollbars.
10770struct ScrollbarLayoutInformation {
10771 /// The bounds of the editor area (excluding the content offset).
10772 editor_bounds: Bounds<Pixels>,
10773 /// The available range to scroll within the document.
10774 scroll_range: Size<Pixels>,
10775 /// The space available for one glyph in the editor.
10776 glyph_grid_cell: Size<Pixels>,
10777}
10778
10779impl ScrollbarLayoutInformation {
10780 pub fn new(
10781 editor_bounds: Bounds<Pixels>,
10782 glyph_grid_cell: Size<Pixels>,
10783 document_size: Size<Pixels>,
10784 longest_line_blame_width: Pixels,
10785 settings: &EditorSettings,
10786 ) -> Self {
10787 let vertical_overscroll = match settings.scroll_beyond_last_line {
10788 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
10789 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
10790 ScrollBeyondLastLine::VerticalScrollMargin => {
10791 (1.0 + settings.vertical_scroll_margin) as f32 * glyph_grid_cell.height
10792 }
10793 };
10794
10795 let overscroll = size(longest_line_blame_width, vertical_overscroll);
10796
10797 ScrollbarLayoutInformation {
10798 editor_bounds,
10799 scroll_range: document_size + overscroll,
10800 glyph_grid_cell,
10801 }
10802 }
10803}
10804
10805impl IntoElement for EditorElement {
10806 type Element = Self;
10807
10808 fn into_element(self) -> Self::Element {
10809 self
10810 }
10811}
10812
10813pub struct EditorLayout {
10814 position_map: Rc<PositionMap>,
10815 hitbox: Hitbox,
10816 gutter_hitbox: Hitbox,
10817 content_origin: gpui::Point<Pixels>,
10818 scrollbars_layout: Option<EditorScrollbars>,
10819 minimap: Option<MinimapLayout>,
10820 mode: EditorMode,
10821 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
10822 indent_guides: Option<Vec<IndentGuideLayout>>,
10823 visible_display_row_range: Range<DisplayRow>,
10824 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
10825 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
10826 line_elements: SmallVec<[AnyElement; 1]>,
10827 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
10828 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
10829 blamed_display_rows: Option<Vec<AnyElement>>,
10830 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
10831 inline_blame_layout: Option<InlineBlameLayout>,
10832 inline_code_actions: Option<AnyElement>,
10833 blocks: Vec<BlockLayout>,
10834 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
10835 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
10836 redacted_ranges: Vec<Range<DisplayPoint>>,
10837 cursors: Vec<(DisplayPoint, Hsla)>,
10838 visible_cursors: Vec<CursorLayout>,
10839 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
10840 test_indicators: Vec<AnyElement>,
10841 breakpoints: Vec<AnyElement>,
10842 diff_review_button: Option<AnyElement>,
10843 crease_toggles: Vec<Option<AnyElement>>,
10844 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
10845 diff_hunk_controls: Vec<AnyElement>,
10846 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
10847 edit_prediction_popover: Option<AnyElement>,
10848 mouse_context_menu: Option<AnyElement>,
10849 tab_invisible: ShapedLine,
10850 space_invisible: ShapedLine,
10851 sticky_buffer_header: Option<AnyElement>,
10852 sticky_headers: Option<StickyHeaders>,
10853 document_colors: Option<(DocumentColorsRenderMode, Vec<(Range<DisplayPoint>, Hsla)>)>,
10854 text_align: TextAlign,
10855 content_width: Pixels,
10856}
10857
10858struct StickyHeaders {
10859 lines: Vec<StickyHeaderLine>,
10860 gutter_background: Hsla,
10861 content_background: Hsla,
10862 gutter_right_padding: Pixels,
10863}
10864
10865struct StickyHeaderLine {
10866 row: DisplayRow,
10867 offset: Pixels,
10868 line: LineWithInvisibles,
10869 line_number: Option<ShapedLine>,
10870 elements: SmallVec<[AnyElement; 1]>,
10871 available_text_width: Pixels,
10872 target_anchor: Anchor,
10873 hitbox: Hitbox,
10874}
10875
10876impl EditorLayout {
10877 fn line_end_overshoot(&self) -> Pixels {
10878 0.15 * self.position_map.line_height
10879 }
10880}
10881
10882impl StickyHeaders {
10883 fn paint(
10884 &mut self,
10885 layout: &mut EditorLayout,
10886 whitespace_setting: ShowWhitespaceSetting,
10887 window: &mut Window,
10888 cx: &mut App,
10889 ) {
10890 let line_height = layout.position_map.line_height;
10891
10892 for line in self.lines.iter_mut().rev() {
10893 window.paint_layer(
10894 Bounds::new(
10895 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
10896 size(line.hitbox.size.width, line_height),
10897 ),
10898 |window| {
10899 let gutter_bounds = Bounds::new(
10900 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
10901 size(layout.gutter_hitbox.size.width, line_height),
10902 );
10903 window.paint_quad(fill(gutter_bounds, self.gutter_background));
10904
10905 let text_bounds = Bounds::new(
10906 layout.position_map.text_hitbox.origin + point(Pixels::ZERO, line.offset),
10907 size(line.available_text_width, line_height),
10908 );
10909 window.paint_quad(fill(text_bounds, self.content_background));
10910
10911 if line.hitbox.is_hovered(window) {
10912 let hover_overlay = cx.theme().colors().panel_overlay_hover;
10913 window.paint_quad(fill(gutter_bounds, hover_overlay));
10914 window.paint_quad(fill(text_bounds, hover_overlay));
10915 }
10916
10917 line.paint(
10918 layout,
10919 self.gutter_right_padding,
10920 line.available_text_width,
10921 layout.content_origin,
10922 line_height,
10923 whitespace_setting,
10924 window,
10925 cx,
10926 );
10927 },
10928 );
10929
10930 window.set_cursor_style(CursorStyle::PointingHand, &line.hitbox);
10931 }
10932 }
10933}
10934
10935impl StickyHeaderLine {
10936 fn new(
10937 row: DisplayRow,
10938 offset: Pixels,
10939 mut line: LineWithInvisibles,
10940 line_number: Option<ShapedLine>,
10941 target_anchor: Anchor,
10942 line_height: Pixels,
10943 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
10944 content_origin: gpui::Point<Pixels>,
10945 gutter_hitbox: &Hitbox,
10946 text_hitbox: &Hitbox,
10947 window: &mut Window,
10948 cx: &mut App,
10949 ) -> Self {
10950 let mut elements = SmallVec::<[AnyElement; 1]>::new();
10951 line.prepaint_with_custom_offset(
10952 line_height,
10953 scroll_pixel_position,
10954 content_origin,
10955 offset,
10956 &mut elements,
10957 window,
10958 cx,
10959 );
10960
10961 let hitbox_bounds = Bounds::new(
10962 gutter_hitbox.origin + point(Pixels::ZERO, offset),
10963 size(text_hitbox.right() - gutter_hitbox.left(), line_height),
10964 );
10965 let available_text_width =
10966 (hitbox_bounds.size.width - gutter_hitbox.size.width).max(Pixels::ZERO);
10967
10968 Self {
10969 row,
10970 offset,
10971 line,
10972 line_number,
10973 elements,
10974 available_text_width,
10975 target_anchor,
10976 hitbox: window.insert_hitbox(hitbox_bounds, HitboxBehavior::BlockMouseExceptScroll),
10977 }
10978 }
10979
10980 fn paint(
10981 &mut self,
10982 layout: &EditorLayout,
10983 gutter_right_padding: Pixels,
10984 available_text_width: Pixels,
10985 content_origin: gpui::Point<Pixels>,
10986 line_height: Pixels,
10987 whitespace_setting: ShowWhitespaceSetting,
10988 window: &mut Window,
10989 cx: &mut App,
10990 ) {
10991 window.with_content_mask(
10992 Some(ContentMask {
10993 bounds: Bounds::new(
10994 layout.position_map.text_hitbox.bounds.origin
10995 + point(Pixels::ZERO, self.offset),
10996 size(available_text_width, line_height),
10997 ),
10998 }),
10999 |window| {
11000 self.line.draw_with_custom_offset(
11001 layout,
11002 self.row,
11003 content_origin,
11004 self.offset,
11005 whitespace_setting,
11006 &[],
11007 window,
11008 cx,
11009 );
11010 for element in &mut self.elements {
11011 element.paint(window, cx);
11012 }
11013 },
11014 );
11015
11016 if let Some(line_number) = &self.line_number {
11017 let gutter_origin = layout.gutter_hitbox.origin + point(Pixels::ZERO, self.offset);
11018 let gutter_width = layout.gutter_hitbox.size.width;
11019 let origin = point(
11020 gutter_origin.x + gutter_width - gutter_right_padding - line_number.width,
11021 gutter_origin.y,
11022 );
11023 line_number
11024 .paint(origin, line_height, TextAlign::Left, None, window, cx)
11025 .log_err();
11026 }
11027 }
11028}
11029
11030#[derive(Debug)]
11031struct LineNumberSegment {
11032 shaped_line: ShapedLine,
11033 hitbox: Option<Hitbox>,
11034}
11035
11036#[derive(Debug)]
11037struct LineNumberLayout {
11038 segments: SmallVec<[LineNumberSegment; 1]>,
11039}
11040
11041struct ColoredRange<T> {
11042 start: T,
11043 end: T,
11044 color: Hsla,
11045}
11046
11047impl Along for ScrollbarAxes {
11048 type Unit = bool;
11049
11050 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
11051 match axis {
11052 ScrollbarAxis::Horizontal => self.horizontal,
11053 ScrollbarAxis::Vertical => self.vertical,
11054 }
11055 }
11056
11057 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
11058 match axis {
11059 ScrollbarAxis::Horizontal => ScrollbarAxes {
11060 horizontal: f(self.horizontal),
11061 vertical: self.vertical,
11062 },
11063 ScrollbarAxis::Vertical => ScrollbarAxes {
11064 horizontal: self.horizontal,
11065 vertical: f(self.vertical),
11066 },
11067 }
11068 }
11069}
11070
11071#[derive(Clone)]
11072struct EditorScrollbars {
11073 pub vertical: Option<ScrollbarLayout>,
11074 pub horizontal: Option<ScrollbarLayout>,
11075 pub visible: bool,
11076}
11077
11078impl EditorScrollbars {
11079 pub fn from_scrollbar_axes(
11080 show_scrollbar: ScrollbarAxes,
11081 layout_information: &ScrollbarLayoutInformation,
11082 content_offset: gpui::Point<Pixels>,
11083 scroll_position: gpui::Point<f64>,
11084 scrollbar_width: Pixels,
11085 right_margin: Pixels,
11086 editor_width: Pixels,
11087 show_scrollbars: bool,
11088 scrollbar_state: Option<&ActiveScrollbarState>,
11089 window: &mut Window,
11090 ) -> Self {
11091 let ScrollbarLayoutInformation {
11092 editor_bounds,
11093 scroll_range,
11094 glyph_grid_cell,
11095 } = layout_information;
11096
11097 let viewport_size = size(editor_width, editor_bounds.size.height);
11098
11099 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
11100 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
11101 Corner::BottomLeft,
11102 editor_bounds.bottom_left(),
11103 size(
11104 // The horizontal viewport size differs from the space available for the
11105 // horizontal scrollbar, so we have to manually stitch it together here.
11106 editor_bounds.size.width - right_margin,
11107 scrollbar_width,
11108 ),
11109 ),
11110 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
11111 Corner::TopRight,
11112 editor_bounds.top_right(),
11113 size(scrollbar_width, viewport_size.height),
11114 ),
11115 };
11116
11117 let mut create_scrollbar_layout = |axis| {
11118 let viewport_size = viewport_size.along(axis);
11119 let scroll_range = scroll_range.along(axis);
11120
11121 // We always want a vertical scrollbar track for scrollbar diagnostic visibility.
11122 (show_scrollbar.along(axis)
11123 && (axis == ScrollbarAxis::Vertical || scroll_range > viewport_size))
11124 .then(|| {
11125 ScrollbarLayout::new(
11126 window.insert_hitbox(scrollbar_bounds_for(axis), HitboxBehavior::Normal),
11127 viewport_size,
11128 scroll_range,
11129 glyph_grid_cell.along(axis),
11130 content_offset.along(axis),
11131 scroll_position.along(axis),
11132 show_scrollbars,
11133 axis,
11134 )
11135 .with_thumb_state(
11136 scrollbar_state.and_then(|state| state.thumb_state_for_axis(axis)),
11137 )
11138 })
11139 };
11140
11141 Self {
11142 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
11143 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
11144 visible: show_scrollbars,
11145 }
11146 }
11147
11148 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
11149 [
11150 (&self.vertical, ScrollbarAxis::Vertical),
11151 (&self.horizontal, ScrollbarAxis::Horizontal),
11152 ]
11153 .into_iter()
11154 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
11155 }
11156
11157 /// Returns the currently hovered scrollbar axis, if any.
11158 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
11159 self.iter_scrollbars()
11160 .find(|s| s.0.hitbox.is_hovered(window))
11161 }
11162}
11163
11164#[derive(Clone)]
11165struct ScrollbarLayout {
11166 hitbox: Hitbox,
11167 visible_range: Range<ScrollOffset>,
11168 text_unit_size: Pixels,
11169 thumb_bounds: Option<Bounds<Pixels>>,
11170 thumb_state: ScrollbarThumbState,
11171}
11172
11173impl ScrollbarLayout {
11174 const BORDER_WIDTH: Pixels = px(1.0);
11175 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
11176 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
11177 const MIN_THUMB_SIZE: Pixels = px(25.0);
11178
11179 fn new(
11180 scrollbar_track_hitbox: Hitbox,
11181 viewport_size: Pixels,
11182 scroll_range: Pixels,
11183 glyph_space: Pixels,
11184 content_offset: Pixels,
11185 scroll_position: ScrollOffset,
11186 show_thumb: bool,
11187 axis: ScrollbarAxis,
11188 ) -> Self {
11189 let track_bounds = scrollbar_track_hitbox.bounds;
11190 // The length of the track available to the scrollbar thumb. We deliberately
11191 // exclude the content size here so that the thumb aligns with the content.
11192 let track_length = track_bounds.size.along(axis) - content_offset;
11193
11194 Self::new_with_hitbox_and_track_length(
11195 scrollbar_track_hitbox,
11196 track_length,
11197 viewport_size,
11198 scroll_range.into(),
11199 glyph_space,
11200 content_offset.into(),
11201 scroll_position,
11202 show_thumb,
11203 axis,
11204 )
11205 }
11206
11207 fn for_minimap(
11208 minimap_track_hitbox: Hitbox,
11209 visible_lines: f64,
11210 total_editor_lines: f64,
11211 minimap_line_height: Pixels,
11212 scroll_position: ScrollOffset,
11213 minimap_scroll_top: ScrollOffset,
11214 show_thumb: bool,
11215 ) -> Self {
11216 // The scrollbar thumb size is calculated as
11217 // (visible_content/total_content) Γ scrollbar_track_length.
11218 //
11219 // For the minimap's thumb layout, we leverage this by setting the
11220 // scrollbar track length to the entire document size (using minimap line
11221 // height). This creates a thumb that exactly represents the editor
11222 // viewport scaled to minimap proportions.
11223 //
11224 // We adjust the thumb position relative to `minimap_scroll_top` to
11225 // accommodate for the deliberately oversized track.
11226 //
11227 // This approach ensures that the minimap thumb accurately reflects the
11228 // editor's current scroll position whilst nicely synchronizing the minimap
11229 // thumb and scrollbar thumb.
11230 let scroll_range = total_editor_lines * f64::from(minimap_line_height);
11231 let viewport_size = visible_lines * f64::from(minimap_line_height);
11232
11233 let track_top_offset = -minimap_scroll_top * f64::from(minimap_line_height);
11234
11235 Self::new_with_hitbox_and_track_length(
11236 minimap_track_hitbox,
11237 Pixels::from(scroll_range),
11238 Pixels::from(viewport_size),
11239 scroll_range,
11240 minimap_line_height,
11241 track_top_offset,
11242 scroll_position,
11243 show_thumb,
11244 ScrollbarAxis::Vertical,
11245 )
11246 }
11247
11248 fn new_with_hitbox_and_track_length(
11249 scrollbar_track_hitbox: Hitbox,
11250 track_length: Pixels,
11251 viewport_size: Pixels,
11252 scroll_range: f64,
11253 glyph_space: Pixels,
11254 content_offset: ScrollOffset,
11255 scroll_position: ScrollOffset,
11256 show_thumb: bool,
11257 axis: ScrollbarAxis,
11258 ) -> Self {
11259 let text_units_per_page = viewport_size.to_f64() / glyph_space.to_f64();
11260 let visible_range = scroll_position..scroll_position + text_units_per_page;
11261 let total_text_units = scroll_range / glyph_space.to_f64();
11262
11263 let thumb_percentage = text_units_per_page / total_text_units;
11264 let thumb_size = Pixels::from(ScrollOffset::from(track_length) * thumb_percentage)
11265 .max(ScrollbarLayout::MIN_THUMB_SIZE)
11266 .min(track_length);
11267
11268 let text_unit_divisor = (total_text_units - text_units_per_page).max(0.);
11269
11270 let content_larger_than_viewport = text_unit_divisor > 0.;
11271
11272 let text_unit_size = if content_larger_than_viewport {
11273 Pixels::from(ScrollOffset::from(track_length - thumb_size) / text_unit_divisor)
11274 } else {
11275 glyph_space
11276 };
11277
11278 let thumb_bounds = (show_thumb && content_larger_than_viewport).then(|| {
11279 Self::thumb_bounds(
11280 &scrollbar_track_hitbox,
11281 content_offset,
11282 visible_range.start,
11283 text_unit_size,
11284 thumb_size,
11285 axis,
11286 )
11287 });
11288
11289 ScrollbarLayout {
11290 hitbox: scrollbar_track_hitbox,
11291 visible_range,
11292 text_unit_size,
11293 thumb_bounds,
11294 thumb_state: Default::default(),
11295 }
11296 }
11297
11298 fn with_thumb_state(self, thumb_state: Option<ScrollbarThumbState>) -> Self {
11299 if let Some(thumb_state) = thumb_state {
11300 Self {
11301 thumb_state,
11302 ..self
11303 }
11304 } else {
11305 self
11306 }
11307 }
11308
11309 fn thumb_bounds(
11310 scrollbar_track: &Hitbox,
11311 content_offset: f64,
11312 visible_range_start: f64,
11313 text_unit_size: Pixels,
11314 thumb_size: Pixels,
11315 axis: ScrollbarAxis,
11316 ) -> Bounds<Pixels> {
11317 let thumb_origin = scrollbar_track.origin.apply_along(axis, |origin| {
11318 origin
11319 + Pixels::from(
11320 content_offset + visible_range_start * ScrollOffset::from(text_unit_size),
11321 )
11322 });
11323 Bounds::new(
11324 thumb_origin,
11325 scrollbar_track.size.apply_along(axis, |_| thumb_size),
11326 )
11327 }
11328
11329 fn thumb_hovered(&self, position: &gpui::Point<Pixels>) -> bool {
11330 self.thumb_bounds
11331 .is_some_and(|bounds| bounds.contains(position))
11332 }
11333
11334 fn marker_quads_for_ranges(
11335 &self,
11336 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
11337 column: Option<usize>,
11338 ) -> Vec<PaintQuad> {
11339 struct MinMax {
11340 min: Pixels,
11341 max: Pixels,
11342 }
11343 let (x_range, height_limit) = if let Some(column) = column {
11344 let column_width = ((self.hitbox.size.width - Self::BORDER_WIDTH) / 3.0).floor();
11345 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
11346 let end = start + column_width;
11347 (
11348 Range { start, end },
11349 MinMax {
11350 min: Self::MIN_MARKER_HEIGHT,
11351 max: px(f32::MAX),
11352 },
11353 )
11354 } else {
11355 (
11356 Range {
11357 start: Self::BORDER_WIDTH,
11358 end: self.hitbox.size.width,
11359 },
11360 MinMax {
11361 min: Self::LINE_MARKER_HEIGHT,
11362 max: Self::LINE_MARKER_HEIGHT,
11363 },
11364 )
11365 };
11366
11367 let row_to_y = |row: DisplayRow| row.as_f64() as f32 * self.text_unit_size;
11368 let mut pixel_ranges = row_ranges
11369 .into_iter()
11370 .map(|range| {
11371 let start_y = row_to_y(range.start);
11372 let end_y = row_to_y(range.end)
11373 + self
11374 .text_unit_size
11375 .max(height_limit.min)
11376 .min(height_limit.max);
11377 ColoredRange {
11378 start: start_y,
11379 end: end_y,
11380 color: range.color,
11381 }
11382 })
11383 .peekable();
11384
11385 let mut quads = Vec::new();
11386 while let Some(mut pixel_range) = pixel_ranges.next() {
11387 while let Some(next_pixel_range) = pixel_ranges.peek() {
11388 if pixel_range.end >= next_pixel_range.start - px(1.0)
11389 && pixel_range.color == next_pixel_range.color
11390 {
11391 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
11392 pixel_ranges.next();
11393 } else {
11394 break;
11395 }
11396 }
11397
11398 let bounds = Bounds::from_corners(
11399 point(x_range.start, pixel_range.start),
11400 point(x_range.end, pixel_range.end),
11401 );
11402 quads.push(quad(
11403 bounds,
11404 Corners::default(),
11405 pixel_range.color,
11406 Edges::default(),
11407 Hsla::transparent_black(),
11408 BorderStyle::default(),
11409 ));
11410 }
11411
11412 quads
11413 }
11414}
11415
11416struct MinimapLayout {
11417 pub minimap: AnyElement,
11418 pub thumb_layout: ScrollbarLayout,
11419 pub minimap_scroll_top: ScrollOffset,
11420 pub minimap_line_height: Pixels,
11421 pub thumb_border_style: MinimapThumbBorder,
11422 pub max_scroll_top: ScrollOffset,
11423}
11424
11425impl MinimapLayout {
11426 /// The minimum width of the minimap in columns. If the minimap is smaller than this, it will be hidden.
11427 const MINIMAP_MIN_WIDTH_COLUMNS: f32 = 20.;
11428 /// The minimap width as a percentage of the editor width.
11429 const MINIMAP_WIDTH_PCT: f32 = 0.15;
11430 /// Calculates the scroll top offset the minimap editor has to have based on the
11431 /// current scroll progress.
11432 fn calculate_minimap_top_offset(
11433 document_lines: f64,
11434 visible_editor_lines: f64,
11435 visible_minimap_lines: f64,
11436 scroll_position: f64,
11437 ) -> ScrollOffset {
11438 let non_visible_document_lines = (document_lines - visible_editor_lines).max(0.);
11439 if non_visible_document_lines == 0. {
11440 0.
11441 } else {
11442 let scroll_percentage = (scroll_position / non_visible_document_lines).clamp(0., 1.);
11443 scroll_percentage * (document_lines - visible_minimap_lines).max(0.)
11444 }
11445 }
11446}
11447
11448struct CreaseTrailerLayout {
11449 element: AnyElement,
11450 bounds: Bounds<Pixels>,
11451}
11452
11453pub(crate) struct PositionMap {
11454 pub size: Size<Pixels>,
11455 pub line_height: Pixels,
11456 pub scroll_position: gpui::Point<ScrollOffset>,
11457 pub scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
11458 pub scroll_max: gpui::Point<ScrollOffset>,
11459 pub em_width: Pixels,
11460 pub em_advance: Pixels,
11461 pub visible_row_range: Range<DisplayRow>,
11462 pub line_layouts: Vec<LineWithInvisibles>,
11463 pub snapshot: EditorSnapshot,
11464 pub text_align: TextAlign,
11465 pub content_width: Pixels,
11466 pub text_hitbox: Hitbox,
11467 pub gutter_hitbox: Hitbox,
11468 pub inline_blame_bounds: Option<(Bounds<Pixels>, BufferId, BlameEntry)>,
11469 pub display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
11470 pub diff_hunk_control_bounds: Vec<(DisplayRow, Bounds<Pixels>)>,
11471}
11472
11473#[derive(Debug, Copy, Clone)]
11474pub struct PointForPosition {
11475 pub previous_valid: DisplayPoint,
11476 pub next_valid: DisplayPoint,
11477 pub exact_unclipped: DisplayPoint,
11478 pub column_overshoot_after_line_end: u32,
11479}
11480
11481impl PointForPosition {
11482 pub fn as_valid(&self) -> Option<DisplayPoint> {
11483 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
11484 Some(self.previous_valid)
11485 } else {
11486 None
11487 }
11488 }
11489
11490 pub fn intersects_selection(&self, selection: &Selection<DisplayPoint>) -> bool {
11491 let Some(valid_point) = self.as_valid() else {
11492 return false;
11493 };
11494 let range = selection.range();
11495
11496 let candidate_row = valid_point.row();
11497 let candidate_col = valid_point.column();
11498
11499 let start_row = range.start.row();
11500 let start_col = range.start.column();
11501 let end_row = range.end.row();
11502 let end_col = range.end.column();
11503
11504 if candidate_row < start_row || candidate_row > end_row {
11505 false
11506 } else if start_row == end_row {
11507 candidate_col >= start_col && candidate_col < end_col
11508 } else if candidate_row == start_row {
11509 candidate_col >= start_col
11510 } else if candidate_row == end_row {
11511 candidate_col < end_col
11512 } else {
11513 true
11514 }
11515 }
11516}
11517
11518impl PositionMap {
11519 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
11520 let text_bounds = self.text_hitbox.bounds;
11521 let scroll_position = self.snapshot.scroll_position();
11522 let position = position - text_bounds.origin;
11523 let y = position.y.max(px(0.)).min(self.size.height);
11524 let x = position.x + (scroll_position.x as f32 * self.em_advance);
11525 let row = ((y / self.line_height) as f64 + scroll_position.y) as u32;
11526
11527 let (column, x_overshoot_after_line_end) = if let Some(line) = self
11528 .line_layouts
11529 .get(row as usize - scroll_position.y as usize)
11530 {
11531 let alignment_offset = line.alignment_offset(self.text_align, self.content_width);
11532 let x_relative_to_text = x - alignment_offset;
11533 if let Some(ix) = line.index_for_x(x_relative_to_text) {
11534 (ix as u32, px(0.))
11535 } else {
11536 (line.len as u32, px(0.).max(x_relative_to_text - line.width))
11537 }
11538 } else {
11539 (0, x)
11540 };
11541
11542 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
11543 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
11544 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
11545
11546 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
11547 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
11548 PointForPosition {
11549 previous_valid,
11550 next_valid,
11551 exact_unclipped,
11552 column_overshoot_after_line_end,
11553 }
11554 }
11555}
11556
11557struct BlockLayout {
11558 id: BlockId,
11559 x_offset: Pixels,
11560 row: Option<DisplayRow>,
11561 element: AnyElement,
11562 available_space: Size<AvailableSpace>,
11563 style: BlockStyle,
11564 overlaps_gutter: bool,
11565 is_buffer_header: bool,
11566}
11567
11568pub fn layout_line(
11569 row: DisplayRow,
11570 snapshot: &EditorSnapshot,
11571 style: &EditorStyle,
11572 text_width: Pixels,
11573 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
11574 window: &mut Window,
11575 cx: &mut App,
11576) -> LineWithInvisibles {
11577 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
11578 LineWithInvisibles::from_chunks(
11579 chunks,
11580 style,
11581 MAX_LINE_LEN,
11582 1,
11583 &snapshot.mode,
11584 text_width,
11585 is_row_soft_wrapped,
11586 &[],
11587 window,
11588 cx,
11589 )
11590 .pop()
11591 .unwrap()
11592}
11593
11594#[derive(Debug)]
11595pub struct IndentGuideLayout {
11596 origin: gpui::Point<Pixels>,
11597 length: Pixels,
11598 single_indent_width: Pixels,
11599 depth: u32,
11600 active: bool,
11601 settings: IndentGuideSettings,
11602}
11603
11604pub struct CursorLayout {
11605 origin: gpui::Point<Pixels>,
11606 block_width: Pixels,
11607 line_height: Pixels,
11608 color: Hsla,
11609 shape: CursorShape,
11610 block_text: Option<ShapedLine>,
11611 cursor_name: Option<AnyElement>,
11612}
11613
11614#[derive(Debug)]
11615pub struct CursorName {
11616 string: SharedString,
11617 color: Hsla,
11618 is_top_row: bool,
11619}
11620
11621impl CursorLayout {
11622 pub fn new(
11623 origin: gpui::Point<Pixels>,
11624 block_width: Pixels,
11625 line_height: Pixels,
11626 color: Hsla,
11627 shape: CursorShape,
11628 block_text: Option<ShapedLine>,
11629 ) -> CursorLayout {
11630 CursorLayout {
11631 origin,
11632 block_width,
11633 line_height,
11634 color,
11635 shape,
11636 block_text,
11637 cursor_name: None,
11638 }
11639 }
11640
11641 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
11642 Bounds {
11643 origin: self.origin + origin,
11644 size: size(self.block_width, self.line_height),
11645 }
11646 }
11647
11648 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
11649 match self.shape {
11650 CursorShape::Bar => Bounds {
11651 origin: self.origin + origin,
11652 size: size(px(2.0), self.line_height),
11653 },
11654 CursorShape::Block | CursorShape::Hollow => Bounds {
11655 origin: self.origin + origin,
11656 size: size(self.block_width, self.line_height),
11657 },
11658 CursorShape::Underline => Bounds {
11659 origin: self.origin
11660 + origin
11661 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
11662 size: size(self.block_width, px(2.0)),
11663 },
11664 }
11665 }
11666
11667 pub fn layout(
11668 &mut self,
11669 origin: gpui::Point<Pixels>,
11670 cursor_name: Option<CursorName>,
11671 window: &mut Window,
11672 cx: &mut App,
11673 ) {
11674 if let Some(cursor_name) = cursor_name {
11675 let bounds = self.bounds(origin);
11676 let text_size = self.line_height / 1.5;
11677
11678 let name_origin = if cursor_name.is_top_row {
11679 point(bounds.right() - px(1.), bounds.top())
11680 } else {
11681 match self.shape {
11682 CursorShape::Bar => point(
11683 bounds.right() - px(2.),
11684 bounds.top() - text_size / 2. - px(1.),
11685 ),
11686 _ => point(
11687 bounds.right() - px(1.),
11688 bounds.top() - text_size / 2. - px(1.),
11689 ),
11690 }
11691 };
11692 let mut name_element = div()
11693 .bg(self.color)
11694 .text_size(text_size)
11695 .px_0p5()
11696 .line_height(text_size + px(2.))
11697 .text_color(cursor_name.color)
11698 .child(cursor_name.string)
11699 .into_any_element();
11700
11701 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
11702
11703 self.cursor_name = Some(name_element);
11704 }
11705 }
11706
11707 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
11708 let bounds = self.bounds(origin);
11709
11710 //Draw background or border quad
11711 let cursor = if matches!(self.shape, CursorShape::Hollow) {
11712 outline(bounds, self.color, BorderStyle::Solid)
11713 } else {
11714 fill(bounds, self.color)
11715 };
11716
11717 if let Some(name) = &mut self.cursor_name {
11718 name.paint(window, cx);
11719 }
11720
11721 window.paint_quad(cursor);
11722
11723 if let Some(block_text) = &self.block_text {
11724 block_text
11725 .paint(
11726 self.origin + origin,
11727 self.line_height,
11728 TextAlign::Left,
11729 None,
11730 window,
11731 cx,
11732 )
11733 .log_err();
11734 }
11735 }
11736
11737 pub fn shape(&self) -> CursorShape {
11738 self.shape
11739 }
11740}
11741
11742#[derive(Debug)]
11743pub struct HighlightedRange {
11744 pub start_y: Pixels,
11745 pub line_height: Pixels,
11746 pub lines: Vec<HighlightedRangeLine>,
11747 pub color: Hsla,
11748 pub corner_radius: Pixels,
11749}
11750
11751#[derive(Debug)]
11752pub struct HighlightedRangeLine {
11753 pub start_x: Pixels,
11754 pub end_x: Pixels,
11755}
11756
11757impl HighlightedRange {
11758 pub fn paint(&self, fill: bool, bounds: Bounds<Pixels>, window: &mut Window) {
11759 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
11760 self.paint_lines(self.start_y, &self.lines[0..1], fill, bounds, window);
11761 self.paint_lines(
11762 self.start_y + self.line_height,
11763 &self.lines[1..],
11764 fill,
11765 bounds,
11766 window,
11767 );
11768 } else {
11769 self.paint_lines(self.start_y, &self.lines, fill, bounds, window);
11770 }
11771 }
11772
11773 fn paint_lines(
11774 &self,
11775 start_y: Pixels,
11776 lines: &[HighlightedRangeLine],
11777 fill: bool,
11778 _bounds: Bounds<Pixels>,
11779 window: &mut Window,
11780 ) {
11781 if lines.is_empty() {
11782 return;
11783 }
11784
11785 let first_line = lines.first().unwrap();
11786 let last_line = lines.last().unwrap();
11787
11788 let first_top_left = point(first_line.start_x, start_y);
11789 let first_top_right = point(first_line.end_x, start_y);
11790
11791 let curve_height = point(Pixels::ZERO, self.corner_radius);
11792 let curve_width = |start_x: Pixels, end_x: Pixels| {
11793 let max = (end_x - start_x) / 2.;
11794 let width = if max < self.corner_radius {
11795 max
11796 } else {
11797 self.corner_radius
11798 };
11799
11800 point(width, Pixels::ZERO)
11801 };
11802
11803 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
11804 let mut builder = if fill {
11805 gpui::PathBuilder::fill()
11806 } else {
11807 gpui::PathBuilder::stroke(px(1.))
11808 };
11809 builder.move_to(first_top_right - top_curve_width);
11810 builder.curve_to(first_top_right + curve_height, first_top_right);
11811
11812 let mut iter = lines.iter().enumerate().peekable();
11813 while let Some((ix, line)) = iter.next() {
11814 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
11815
11816 if let Some((_, next_line)) = iter.peek() {
11817 let next_top_right = point(next_line.end_x, bottom_right.y);
11818
11819 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
11820 Ordering::Equal => {
11821 builder.line_to(bottom_right);
11822 }
11823 Ordering::Less => {
11824 let curve_width = curve_width(next_top_right.x, bottom_right.x);
11825 builder.line_to(bottom_right - curve_height);
11826 if self.corner_radius > Pixels::ZERO {
11827 builder.curve_to(bottom_right - curve_width, bottom_right);
11828 }
11829 builder.line_to(next_top_right + curve_width);
11830 if self.corner_radius > Pixels::ZERO {
11831 builder.curve_to(next_top_right + curve_height, next_top_right);
11832 }
11833 }
11834 Ordering::Greater => {
11835 let curve_width = curve_width(bottom_right.x, next_top_right.x);
11836 builder.line_to(bottom_right - curve_height);
11837 if self.corner_radius > Pixels::ZERO {
11838 builder.curve_to(bottom_right + curve_width, bottom_right);
11839 }
11840 builder.line_to(next_top_right - curve_width);
11841 if self.corner_radius > Pixels::ZERO {
11842 builder.curve_to(next_top_right + curve_height, next_top_right);
11843 }
11844 }
11845 }
11846 } else {
11847 let curve_width = curve_width(line.start_x, line.end_x);
11848 builder.line_to(bottom_right - curve_height);
11849 if self.corner_radius > Pixels::ZERO {
11850 builder.curve_to(bottom_right - curve_width, bottom_right);
11851 }
11852
11853 let bottom_left = point(line.start_x, bottom_right.y);
11854 builder.line_to(bottom_left + curve_width);
11855 if self.corner_radius > Pixels::ZERO {
11856 builder.curve_to(bottom_left - curve_height, bottom_left);
11857 }
11858 }
11859 }
11860
11861 if first_line.start_x > last_line.start_x {
11862 let curve_width = curve_width(last_line.start_x, first_line.start_x);
11863 let second_top_left = point(last_line.start_x, start_y + self.line_height);
11864 builder.line_to(second_top_left + curve_height);
11865 if self.corner_radius > Pixels::ZERO {
11866 builder.curve_to(second_top_left + curve_width, second_top_left);
11867 }
11868 let first_bottom_left = point(first_line.start_x, second_top_left.y);
11869 builder.line_to(first_bottom_left - curve_width);
11870 if self.corner_radius > Pixels::ZERO {
11871 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
11872 }
11873 }
11874
11875 builder.line_to(first_top_left + curve_height);
11876 if self.corner_radius > Pixels::ZERO {
11877 builder.curve_to(first_top_left + top_curve_width, first_top_left);
11878 }
11879 builder.line_to(first_top_right - top_curve_width);
11880
11881 if let Ok(path) = builder.build() {
11882 window.paint_path(path, self.color);
11883 }
11884 }
11885}
11886
11887pub(crate) struct StickyHeader {
11888 pub item: language::OutlineItem<Anchor>,
11889 pub sticky_row: DisplayRow,
11890 pub start_point: Point,
11891 pub offset: ScrollOffset,
11892}
11893
11894enum CursorPopoverType {
11895 CodeContextMenu,
11896 EditPrediction,
11897}
11898
11899pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
11900 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
11901}
11902
11903fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
11904 (delta.pow(1.2) / 300.0).into()
11905}
11906
11907pub fn register_action<T: Action>(
11908 editor: &Entity<Editor>,
11909 window: &mut Window,
11910 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
11911) {
11912 let editor = editor.clone();
11913 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
11914 let action = action.downcast_ref().unwrap();
11915 if phase == DispatchPhase::Bubble {
11916 editor.update(cx, |editor, cx| {
11917 listener(editor, action, window, cx);
11918 })
11919 }
11920 })
11921}
11922
11923fn compute_auto_height_layout(
11924 editor: &mut Editor,
11925 min_lines: usize,
11926 max_lines: Option<usize>,
11927 known_dimensions: Size<Option<Pixels>>,
11928 available_width: AvailableSpace,
11929 window: &mut Window,
11930 cx: &mut Context<Editor>,
11931) -> Option<Size<Pixels>> {
11932 let width = known_dimensions.width.or({
11933 if let AvailableSpace::Definite(available_width) = available_width {
11934 Some(available_width)
11935 } else {
11936 None
11937 }
11938 })?;
11939 if let Some(height) = known_dimensions.height {
11940 return Some(size(width, height));
11941 }
11942
11943 let style = editor.style.as_ref().unwrap();
11944 let font_id = window.text_system().resolve_font(&style.text.font());
11945 let font_size = style.text.font_size.to_pixels(window.rem_size());
11946 let line_height = style.text.line_height_in_pixels(window.rem_size());
11947 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
11948
11949 let mut snapshot = editor.snapshot(window, cx);
11950 let gutter_dimensions = snapshot.gutter_dimensions(font_id, font_size, style, window, cx);
11951
11952 editor.gutter_dimensions = gutter_dimensions;
11953 let text_width = width - gutter_dimensions.width;
11954 let overscroll = size(em_width, px(0.));
11955
11956 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
11957 if !matches!(editor.soft_wrap_mode(cx), SoftWrap::None)
11958 && editor.set_wrap_width(Some(editor_width), cx)
11959 {
11960 snapshot = editor.snapshot(window, cx);
11961 }
11962
11963 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
11964
11965 let min_height = line_height * min_lines as f32;
11966 let content_height = scroll_height.max(min_height);
11967
11968 let final_height = if let Some(max_lines) = max_lines {
11969 let max_height = line_height * max_lines as f32;
11970 content_height.min(max_height)
11971 } else {
11972 content_height
11973 };
11974
11975 Some(size(width, final_height))
11976}
11977
11978#[cfg(test)]
11979mod tests {
11980 use super::*;
11981 use crate::{
11982 Editor, MultiBuffer, SelectionEffects,
11983 display_map::{BlockPlacement, BlockProperties},
11984 editor_tests::{init_test, update_test_language_settings},
11985 };
11986 use gpui::{TestAppContext, VisualTestContext};
11987 use language::{Buffer, language_settings, tree_sitter_python};
11988 use log::info;
11989 use std::num::NonZeroU32;
11990 use util::test::sample_text;
11991
11992 #[gpui::test]
11993 async fn test_soft_wrap_editor_width_auto_height_editor(cx: &mut TestAppContext) {
11994 init_test(cx, |_| {});
11995 // Ensure wrap completes synchronously by giving block_with_timeout enough ticks
11996 cx.dispatcher.scheduler().set_timeout_ticks(1000..=1000);
11997
11998 let window = cx.add_window(|window, cx| {
11999 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
12000 let mut editor = Editor::new(
12001 EditorMode::AutoHeight {
12002 min_lines: 1,
12003 max_lines: None,
12004 },
12005 buffer,
12006 None,
12007 window,
12008 cx,
12009 );
12010 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12011 editor
12012 });
12013 let cx = &mut VisualTestContext::from_window(*window, cx);
12014 let editor = window.root(cx).unwrap();
12015 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12016
12017 for x in 1..=100 {
12018 let (_, state) = cx.draw(
12019 Default::default(),
12020 size(px(200. + 0.13 * x as f32), px(500.)),
12021 |_, _| EditorElement::new(&editor, style.clone()),
12022 );
12023
12024 assert!(
12025 state.position_map.scroll_max.x == 0.,
12026 "Soft wrapped editor should have no horizontal scrolling!"
12027 );
12028 }
12029 }
12030
12031 #[gpui::test]
12032 async fn test_soft_wrap_editor_width_full_editor(cx: &mut TestAppContext) {
12033 init_test(cx, |_| {});
12034 // Ensure wrap completes synchronously by giving block_with_timeout enough ticks
12035 cx.dispatcher.scheduler().set_timeout_ticks(1000..=1000);
12036
12037 let window = cx.add_window(|window, cx| {
12038 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
12039 let mut editor = Editor::new(EditorMode::full(), buffer, None, window, cx);
12040 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12041 editor
12042 });
12043 let cx = &mut VisualTestContext::from_window(*window, cx);
12044 let editor = window.root(cx).unwrap();
12045 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12046
12047 for x in 1..=100 {
12048 let (_, state) = cx.draw(
12049 Default::default(),
12050 size(px(200. + 0.13 * x as f32), px(500.)),
12051 |_, _| EditorElement::new(&editor, style.clone()),
12052 );
12053
12054 assert!(
12055 state.position_map.scroll_max.x == 0.,
12056 "Soft wrapped editor should have no horizontal scrolling!"
12057 );
12058 }
12059 }
12060
12061 #[gpui::test]
12062 fn test_layout_line_numbers(cx: &mut TestAppContext) {
12063 init_test(cx, |_| {});
12064 let window = cx.add_window(|window, cx| {
12065 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
12066 Editor::new(EditorMode::full(), buffer, None, window, cx)
12067 });
12068
12069 let editor = window.root(cx).unwrap();
12070 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12071 let line_height = window
12072 .update(cx, |_, window, _| {
12073 style.text.line_height_in_pixels(window.rem_size())
12074 })
12075 .unwrap();
12076 let element = EditorElement::new(&editor, style);
12077 let snapshot = window
12078 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
12079 .unwrap();
12080
12081 let layouts = cx
12082 .update_window(*window, |_, window, cx| {
12083 element.layout_line_numbers(
12084 None,
12085 GutterDimensions {
12086 left_padding: Pixels::ZERO,
12087 right_padding: Pixels::ZERO,
12088 width: px(30.0),
12089 margin: Pixels::ZERO,
12090 git_blame_entries_width: None,
12091 },
12092 line_height,
12093 gpui::Point::default(),
12094 DisplayRow(0)..DisplayRow(6),
12095 &(0..6)
12096 .map(|row| RowInfo {
12097 buffer_row: Some(row),
12098 ..Default::default()
12099 })
12100 .collect::<Vec<_>>(),
12101 &BTreeMap::default(),
12102 Some(DisplayRow(0)),
12103 &snapshot,
12104 window,
12105 cx,
12106 )
12107 })
12108 .unwrap();
12109 assert_eq!(layouts.len(), 6);
12110
12111 let relative_rows = window
12112 .update(cx, |editor, window, cx| {
12113 let snapshot = editor.snapshot(window, cx);
12114 snapshot.calculate_relative_line_numbers(
12115 &(DisplayRow(0)..DisplayRow(6)),
12116 DisplayRow(3),
12117 false,
12118 )
12119 })
12120 .unwrap();
12121 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12122 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12123 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12124 // current line has no relative number
12125 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12126 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12127 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12128
12129 // works if cursor is before screen
12130 let relative_rows = window
12131 .update(cx, |editor, window, cx| {
12132 let snapshot = editor.snapshot(window, cx);
12133 snapshot.calculate_relative_line_numbers(
12134 &(DisplayRow(3)..DisplayRow(6)),
12135 DisplayRow(1),
12136 false,
12137 )
12138 })
12139 .unwrap();
12140 assert_eq!(relative_rows.len(), 3);
12141 assert_eq!(relative_rows[&DisplayRow(3)], 2);
12142 assert_eq!(relative_rows[&DisplayRow(4)], 3);
12143 assert_eq!(relative_rows[&DisplayRow(5)], 4);
12144
12145 // works if cursor is after screen
12146 let relative_rows = window
12147 .update(cx, |editor, window, cx| {
12148 let snapshot = editor.snapshot(window, cx);
12149 snapshot.calculate_relative_line_numbers(
12150 &(DisplayRow(0)..DisplayRow(3)),
12151 DisplayRow(6),
12152 false,
12153 )
12154 })
12155 .unwrap();
12156 assert_eq!(relative_rows.len(), 3);
12157 assert_eq!(relative_rows[&DisplayRow(0)], 5);
12158 assert_eq!(relative_rows[&DisplayRow(1)], 4);
12159 assert_eq!(relative_rows[&DisplayRow(2)], 3);
12160
12161 const DELETED_LINE: u32 = 3;
12162 let layouts = cx
12163 .update_window(*window, |_, window, cx| {
12164 element.layout_line_numbers(
12165 None,
12166 GutterDimensions {
12167 left_padding: Pixels::ZERO,
12168 right_padding: Pixels::ZERO,
12169 width: px(30.0),
12170 margin: Pixels::ZERO,
12171 git_blame_entries_width: None,
12172 },
12173 line_height,
12174 gpui::Point::default(),
12175 DisplayRow(0)..DisplayRow(6),
12176 &(0..6)
12177 .map(|row| RowInfo {
12178 buffer_row: Some(row),
12179 diff_status: (row == DELETED_LINE).then(|| {
12180 DiffHunkStatus::deleted(
12181 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
12182 )
12183 }),
12184 ..Default::default()
12185 })
12186 .collect::<Vec<_>>(),
12187 &BTreeMap::default(),
12188 Some(DisplayRow(0)),
12189 &snapshot,
12190 window,
12191 cx,
12192 )
12193 })
12194 .unwrap();
12195 assert_eq!(layouts.len(), 5,);
12196 assert!(
12197 layouts.get(&MultiBufferRow(DELETED_LINE)).is_none(),
12198 "Deleted line should not have a line number"
12199 );
12200 }
12201
12202 #[gpui::test]
12203 async fn test_layout_line_numbers_with_folded_lines(cx: &mut TestAppContext) {
12204 init_test(cx, |_| {});
12205
12206 let python_lang = languages::language("python", tree_sitter_python::LANGUAGE.into());
12207
12208 let window = cx.add_window(|window, cx| {
12209 let buffer = cx.new(|cx| {
12210 Buffer::local(
12211 indoc::indoc! {"
12212 fn test() -> int {
12213 return 2;
12214 }
12215
12216 fn another_test() -> int {
12217 # This is a very peculiar method that is hard to grasp.
12218 return 4;
12219 }
12220 "},
12221 cx,
12222 )
12223 .with_language(python_lang, cx)
12224 });
12225
12226 let buffer = MultiBuffer::build_from_buffer(buffer, cx);
12227 Editor::new(EditorMode::full(), buffer, None, window, cx)
12228 });
12229
12230 let editor = window.root(cx).unwrap();
12231 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12232 let line_height = window
12233 .update(cx, |_, window, _| {
12234 style.text.line_height_in_pixels(window.rem_size())
12235 })
12236 .unwrap();
12237 let element = EditorElement::new(&editor, style);
12238 let snapshot = window
12239 .update(cx, |editor, window, cx| {
12240 editor.fold_at(MultiBufferRow(0), window, cx);
12241 editor.snapshot(window, cx)
12242 })
12243 .unwrap();
12244
12245 let layouts = cx
12246 .update_window(*window, |_, window, cx| {
12247 element.layout_line_numbers(
12248 None,
12249 GutterDimensions {
12250 left_padding: Pixels::ZERO,
12251 right_padding: Pixels::ZERO,
12252 width: px(30.0),
12253 margin: Pixels::ZERO,
12254 git_blame_entries_width: None,
12255 },
12256 line_height,
12257 gpui::Point::default(),
12258 DisplayRow(0)..DisplayRow(6),
12259 &(0..6)
12260 .map(|row| RowInfo {
12261 buffer_row: Some(row),
12262 ..Default::default()
12263 })
12264 .collect::<Vec<_>>(),
12265 &BTreeMap::default(),
12266 Some(DisplayRow(3)),
12267 &snapshot,
12268 window,
12269 cx,
12270 )
12271 })
12272 .unwrap();
12273 assert_eq!(layouts.len(), 6);
12274
12275 let relative_rows = window
12276 .update(cx, |editor, window, cx| {
12277 let snapshot = editor.snapshot(window, cx);
12278 snapshot.calculate_relative_line_numbers(
12279 &(DisplayRow(0)..DisplayRow(6)),
12280 DisplayRow(3),
12281 false,
12282 )
12283 })
12284 .unwrap();
12285 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12286 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12287 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12288 // current line has no relative number
12289 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12290 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12291 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12292 }
12293
12294 #[gpui::test]
12295 fn test_layout_line_numbers_wrapping(cx: &mut TestAppContext) {
12296 init_test(cx, |_| {});
12297 let window = cx.add_window(|window, cx| {
12298 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
12299 Editor::new(EditorMode::full(), buffer, None, window, cx)
12300 });
12301
12302 update_test_language_settings(cx, |s| {
12303 s.defaults.preferred_line_length = Some(5_u32);
12304 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
12305 });
12306
12307 let editor = window.root(cx).unwrap();
12308 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12309 let line_height = window
12310 .update(cx, |_, window, _| {
12311 style.text.line_height_in_pixels(window.rem_size())
12312 })
12313 .unwrap();
12314 let element = EditorElement::new(&editor, style);
12315 let snapshot = window
12316 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
12317 .unwrap();
12318
12319 let layouts = cx
12320 .update_window(*window, |_, window, cx| {
12321 element.layout_line_numbers(
12322 None,
12323 GutterDimensions {
12324 left_padding: Pixels::ZERO,
12325 right_padding: Pixels::ZERO,
12326 width: px(30.0),
12327 margin: Pixels::ZERO,
12328 git_blame_entries_width: None,
12329 },
12330 line_height,
12331 gpui::Point::default(),
12332 DisplayRow(0)..DisplayRow(6),
12333 &(0..6)
12334 .map(|row| RowInfo {
12335 buffer_row: Some(row),
12336 ..Default::default()
12337 })
12338 .collect::<Vec<_>>(),
12339 &BTreeMap::default(),
12340 Some(DisplayRow(0)),
12341 &snapshot,
12342 window,
12343 cx,
12344 )
12345 })
12346 .unwrap();
12347 assert_eq!(layouts.len(), 3);
12348
12349 let relative_rows = window
12350 .update(cx, |editor, window, cx| {
12351 let snapshot = editor.snapshot(window, cx);
12352 snapshot.calculate_relative_line_numbers(
12353 &(DisplayRow(0)..DisplayRow(6)),
12354 DisplayRow(3),
12355 true,
12356 )
12357 })
12358 .unwrap();
12359
12360 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12361 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12362 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12363 // current line has no relative number
12364 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12365 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12366 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12367
12368 let layouts = cx
12369 .update_window(*window, |_, window, cx| {
12370 element.layout_line_numbers(
12371 None,
12372 GutterDimensions {
12373 left_padding: Pixels::ZERO,
12374 right_padding: Pixels::ZERO,
12375 width: px(30.0),
12376 margin: Pixels::ZERO,
12377 git_blame_entries_width: None,
12378 },
12379 line_height,
12380 gpui::Point::default(),
12381 DisplayRow(0)..DisplayRow(6),
12382 &(0..6)
12383 .map(|row| RowInfo {
12384 buffer_row: Some(row),
12385 diff_status: Some(DiffHunkStatus::deleted(
12386 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
12387 )),
12388 ..Default::default()
12389 })
12390 .collect::<Vec<_>>(),
12391 &BTreeMap::from_iter([(DisplayRow(0), LineHighlightSpec::default())]),
12392 Some(DisplayRow(0)),
12393 &snapshot,
12394 window,
12395 cx,
12396 )
12397 })
12398 .unwrap();
12399 assert!(
12400 layouts.is_empty(),
12401 "Deleted lines should have no line number"
12402 );
12403
12404 let relative_rows = window
12405 .update(cx, |editor, window, cx| {
12406 let snapshot = editor.snapshot(window, cx);
12407 snapshot.calculate_relative_line_numbers(
12408 &(DisplayRow(0)..DisplayRow(6)),
12409 DisplayRow(3),
12410 true,
12411 )
12412 })
12413 .unwrap();
12414
12415 // Deleted lines should still have relative numbers
12416 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12417 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12418 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12419 // current line, even if deleted, has no relative number
12420 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12421 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12422 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12423 }
12424
12425 #[gpui::test]
12426 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
12427 init_test(cx, |_| {});
12428
12429 let window = cx.add_window(|window, cx| {
12430 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
12431 Editor::new(EditorMode::full(), buffer, None, window, cx)
12432 });
12433 let cx = &mut VisualTestContext::from_window(*window, cx);
12434 let editor = window.root(cx).unwrap();
12435 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12436
12437 window
12438 .update(cx, |editor, window, cx| {
12439 editor.cursor_offset_on_selection = true;
12440 editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
12441 s.select_ranges([
12442 Point::new(0, 0)..Point::new(1, 0),
12443 Point::new(3, 2)..Point::new(3, 3),
12444 Point::new(5, 6)..Point::new(6, 0),
12445 ]);
12446 });
12447 })
12448 .unwrap();
12449
12450 let (_, state) = cx.draw(
12451 point(px(500.), px(500.)),
12452 size(px(500.), px(500.)),
12453 |_, _| EditorElement::new(&editor, style),
12454 );
12455
12456 assert_eq!(state.selections.len(), 1);
12457 let local_selections = &state.selections[0].1;
12458 assert_eq!(local_selections.len(), 3);
12459 // moves cursor back one line
12460 assert_eq!(
12461 local_selections[0].head,
12462 DisplayPoint::new(DisplayRow(0), 6)
12463 );
12464 assert_eq!(
12465 local_selections[0].range,
12466 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
12467 );
12468
12469 // moves cursor back one column
12470 assert_eq!(
12471 local_selections[1].range,
12472 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
12473 );
12474 assert_eq!(
12475 local_selections[1].head,
12476 DisplayPoint::new(DisplayRow(3), 2)
12477 );
12478
12479 // leaves cursor on the max point
12480 assert_eq!(
12481 local_selections[2].range,
12482 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
12483 );
12484 assert_eq!(
12485 local_selections[2].head,
12486 DisplayPoint::new(DisplayRow(6), 0)
12487 );
12488
12489 // active lines does not include 1 (even though the range of the selection does)
12490 assert_eq!(
12491 state.active_rows.keys().cloned().collect::<Vec<_>>(),
12492 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
12493 );
12494 }
12495
12496 #[gpui::test]
12497 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
12498 init_test(cx, |_| {});
12499
12500 let window = cx.add_window(|window, cx| {
12501 let buffer = MultiBuffer::build_simple("", cx);
12502 Editor::new(EditorMode::full(), buffer, None, window, cx)
12503 });
12504 let cx = &mut VisualTestContext::from_window(*window, cx);
12505 let editor = window.root(cx).unwrap();
12506 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12507 window
12508 .update(cx, |editor, window, cx| {
12509 editor.set_placeholder_text("hello", window, cx);
12510 editor.insert_blocks(
12511 [BlockProperties {
12512 style: BlockStyle::Fixed,
12513 placement: BlockPlacement::Above(Anchor::min()),
12514 height: Some(3),
12515 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
12516 priority: 0,
12517 }],
12518 None,
12519 cx,
12520 );
12521
12522 // Blur the editor so that it displays placeholder text.
12523 window.blur();
12524 })
12525 .unwrap();
12526
12527 let (_, state) = cx.draw(
12528 point(px(500.), px(500.)),
12529 size(px(500.), px(500.)),
12530 |_, _| EditorElement::new(&editor, style),
12531 );
12532 assert_eq!(state.position_map.line_layouts.len(), 4);
12533 assert_eq!(state.line_numbers.len(), 1);
12534 assert_eq!(
12535 state
12536 .line_numbers
12537 .get(&MultiBufferRow(0))
12538 .map(|line_number| line_number
12539 .segments
12540 .first()
12541 .unwrap()
12542 .shaped_line
12543 .text
12544 .as_ref()),
12545 Some("1")
12546 );
12547 }
12548
12549 #[gpui::test]
12550 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
12551 const TAB_SIZE: u32 = 4;
12552
12553 let input_text = "\t \t|\t| a b";
12554 let expected_invisibles = vec![
12555 Invisible::Tab {
12556 line_start_offset: 0,
12557 line_end_offset: TAB_SIZE as usize,
12558 },
12559 Invisible::Whitespace {
12560 line_offset: TAB_SIZE as usize,
12561 },
12562 Invisible::Tab {
12563 line_start_offset: TAB_SIZE as usize + 1,
12564 line_end_offset: TAB_SIZE as usize * 2,
12565 },
12566 Invisible::Tab {
12567 line_start_offset: TAB_SIZE as usize * 2 + 1,
12568 line_end_offset: TAB_SIZE as usize * 3,
12569 },
12570 Invisible::Whitespace {
12571 line_offset: TAB_SIZE as usize * 3 + 1,
12572 },
12573 Invisible::Whitespace {
12574 line_offset: TAB_SIZE as usize * 3 + 3,
12575 },
12576 ];
12577 assert_eq!(
12578 expected_invisibles.len(),
12579 input_text
12580 .chars()
12581 .filter(|initial_char| initial_char.is_whitespace())
12582 .count(),
12583 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
12584 );
12585
12586 for show_line_numbers in [true, false] {
12587 init_test(cx, |s| {
12588 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12589 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
12590 });
12591
12592 let actual_invisibles = collect_invisibles_from_new_editor(
12593 cx,
12594 EditorMode::full(),
12595 input_text,
12596 px(500.0),
12597 show_line_numbers,
12598 );
12599
12600 assert_eq!(expected_invisibles, actual_invisibles);
12601 }
12602 }
12603
12604 #[gpui::test]
12605 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
12606 init_test(cx, |s| {
12607 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12608 s.defaults.tab_size = NonZeroU32::new(4);
12609 });
12610
12611 for editor_mode_without_invisibles in [
12612 EditorMode::SingleLine,
12613 EditorMode::AutoHeight {
12614 min_lines: 1,
12615 max_lines: Some(100),
12616 },
12617 ] {
12618 for show_line_numbers in [true, false] {
12619 let invisibles = collect_invisibles_from_new_editor(
12620 cx,
12621 editor_mode_without_invisibles.clone(),
12622 "\t\t\t| | a b",
12623 px(500.0),
12624 show_line_numbers,
12625 );
12626 assert!(
12627 invisibles.is_empty(),
12628 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
12629 );
12630 }
12631 }
12632 }
12633
12634 #[gpui::test]
12635 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
12636 let tab_size = 4;
12637 let input_text = "a\tbcd ".repeat(9);
12638 let repeated_invisibles = [
12639 Invisible::Tab {
12640 line_start_offset: 1,
12641 line_end_offset: tab_size as usize,
12642 },
12643 Invisible::Whitespace {
12644 line_offset: tab_size as usize + 3,
12645 },
12646 Invisible::Whitespace {
12647 line_offset: tab_size as usize + 4,
12648 },
12649 Invisible::Whitespace {
12650 line_offset: tab_size as usize + 5,
12651 },
12652 Invisible::Whitespace {
12653 line_offset: tab_size as usize + 6,
12654 },
12655 Invisible::Whitespace {
12656 line_offset: tab_size as usize + 7,
12657 },
12658 ];
12659 let expected_invisibles = std::iter::once(repeated_invisibles)
12660 .cycle()
12661 .take(9)
12662 .flatten()
12663 .collect::<Vec<_>>();
12664 assert_eq!(
12665 expected_invisibles.len(),
12666 input_text
12667 .chars()
12668 .filter(|initial_char| initial_char.is_whitespace())
12669 .count(),
12670 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
12671 );
12672 info!("Expected invisibles: {expected_invisibles:?}");
12673
12674 init_test(cx, |_| {});
12675
12676 // Put the same string with repeating whitespace pattern into editors of various size,
12677 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
12678 let resize_step = 10.0;
12679 let mut editor_width = 200.0;
12680 while editor_width <= 1000.0 {
12681 for show_line_numbers in [true, false] {
12682 update_test_language_settings(cx, |s| {
12683 s.defaults.tab_size = NonZeroU32::new(tab_size);
12684 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12685 s.defaults.preferred_line_length = Some(editor_width as u32);
12686 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
12687 });
12688
12689 let actual_invisibles = collect_invisibles_from_new_editor(
12690 cx,
12691 EditorMode::full(),
12692 &input_text,
12693 px(editor_width),
12694 show_line_numbers,
12695 );
12696
12697 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
12698 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
12699 let mut i = 0;
12700 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
12701 i = actual_index;
12702 match expected_invisibles.get(i) {
12703 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
12704 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
12705 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
12706 _ => {
12707 panic!(
12708 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
12709 )
12710 }
12711 },
12712 None => {
12713 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
12714 }
12715 }
12716 }
12717 let missing_expected_invisibles = &expected_invisibles[i + 1..];
12718 assert!(
12719 missing_expected_invisibles.is_empty(),
12720 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
12721 );
12722
12723 editor_width += resize_step;
12724 }
12725 }
12726 }
12727
12728 fn collect_invisibles_from_new_editor(
12729 cx: &mut TestAppContext,
12730 editor_mode: EditorMode,
12731 input_text: &str,
12732 editor_width: Pixels,
12733 show_line_numbers: bool,
12734 ) -> Vec<Invisible> {
12735 info!(
12736 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
12737 f32::from(editor_width)
12738 );
12739 let window = cx.add_window(|window, cx| {
12740 let buffer = MultiBuffer::build_simple(input_text, cx);
12741 Editor::new(editor_mode, buffer, None, window, cx)
12742 });
12743 let cx = &mut VisualTestContext::from_window(*window, cx);
12744 let editor = window.root(cx).unwrap();
12745
12746 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12747 window
12748 .update(cx, |editor, _, cx| {
12749 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12750 editor.set_wrap_width(Some(editor_width), cx);
12751 editor.set_show_line_numbers(show_line_numbers, cx);
12752 })
12753 .unwrap();
12754 let (_, state) = cx.draw(
12755 point(px(500.), px(500.)),
12756 size(px(500.), px(500.)),
12757 |_, _| EditorElement::new(&editor, style),
12758 );
12759 state
12760 .position_map
12761 .line_layouts
12762 .iter()
12763 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
12764 .cloned()
12765 .collect()
12766 }
12767
12768 #[gpui::test]
12769 fn test_merge_overlapping_ranges() {
12770 let base_bg = Hsla::white();
12771 let color1 = Hsla {
12772 h: 0.0,
12773 s: 0.5,
12774 l: 0.5,
12775 a: 0.5,
12776 };
12777 let color2 = Hsla {
12778 h: 120.0,
12779 s: 0.5,
12780 l: 0.5,
12781 a: 0.5,
12782 };
12783
12784 let display_point = |col| DisplayPoint::new(DisplayRow(0), col);
12785 let cols = |v: &Vec<(Range<DisplayPoint>, Hsla)>| -> Vec<(u32, u32)> {
12786 v.iter()
12787 .map(|(r, _)| (r.start.column(), r.end.column()))
12788 .collect()
12789 };
12790
12791 // Test overlapping ranges blend colors
12792 let overlapping = vec![
12793 (display_point(5)..display_point(15), color1),
12794 (display_point(10)..display_point(20), color2),
12795 ];
12796 let result = EditorElement::merge_overlapping_ranges(overlapping, base_bg);
12797 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
12798
12799 // Test middle segment should have blended color
12800 let blended = Hsla::blend(Hsla::blend(base_bg, color1), color2);
12801 assert_eq!(result[1].1, blended);
12802
12803 // Test adjacent same-color ranges merge
12804 let adjacent_same = vec![
12805 (display_point(5)..display_point(10), color1),
12806 (display_point(10)..display_point(15), color1),
12807 ];
12808 let result = EditorElement::merge_overlapping_ranges(adjacent_same, base_bg);
12809 assert_eq!(cols(&result), vec![(5, 15)]);
12810
12811 // Test contained range splits
12812 let contained = vec![
12813 (display_point(5)..display_point(20), color1),
12814 (display_point(10)..display_point(15), color2),
12815 ];
12816 let result = EditorElement::merge_overlapping_ranges(contained, base_bg);
12817 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
12818
12819 // Test multiple overlaps split at every boundary
12820 let color3 = Hsla {
12821 h: 240.0,
12822 s: 0.5,
12823 l: 0.5,
12824 a: 0.5,
12825 };
12826 let complex = vec![
12827 (display_point(5)..display_point(12), color1),
12828 (display_point(8)..display_point(16), color2),
12829 (display_point(10)..display_point(14), color3),
12830 ];
12831 let result = EditorElement::merge_overlapping_ranges(complex, base_bg);
12832 assert_eq!(
12833 cols(&result),
12834 vec![(5, 8), (8, 10), (10, 12), (12, 14), (14, 16)]
12835 );
12836 }
12837
12838 #[gpui::test]
12839 fn test_bg_segments_per_row() {
12840 let base_bg = Hsla::white();
12841
12842 // Case A: selection spans three display rows: row 1 [5, end), full row 2, row 3 [0, 7)
12843 {
12844 let selection_color = Hsla {
12845 h: 200.0,
12846 s: 0.5,
12847 l: 0.5,
12848 a: 0.5,
12849 };
12850 let player_color = PlayerColor {
12851 cursor: selection_color,
12852 background: selection_color,
12853 selection: selection_color,
12854 };
12855
12856 let spanning_selection = SelectionLayout {
12857 head: DisplayPoint::new(DisplayRow(3), 7),
12858 cursor_shape: CursorShape::Bar,
12859 is_newest: true,
12860 is_local: true,
12861 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 7),
12862 active_rows: DisplayRow(1)..DisplayRow(4),
12863 user_name: None,
12864 };
12865
12866 let selections = vec![(player_color, vec![spanning_selection])];
12867 let result = EditorElement::bg_segments_per_row(
12868 DisplayRow(0)..DisplayRow(5),
12869 &selections,
12870 &[],
12871 base_bg,
12872 );
12873
12874 assert_eq!(result.len(), 5);
12875 assert!(result[0].is_empty());
12876 assert_eq!(result[1].len(), 1);
12877 assert_eq!(result[2].len(), 1);
12878 assert_eq!(result[3].len(), 1);
12879 assert!(result[4].is_empty());
12880
12881 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
12882 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
12883 assert_eq!(result[1][0].0.end.column(), u32::MAX);
12884 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
12885 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
12886 assert_eq!(result[2][0].0.end.column(), u32::MAX);
12887 assert_eq!(result[3][0].0.start, DisplayPoint::new(DisplayRow(3), 0));
12888 assert_eq!(result[3][0].0.end, DisplayPoint::new(DisplayRow(3), 7));
12889 }
12890
12891 // Case B: selection ends exactly at the start of row 3, excluding row 3
12892 {
12893 let selection_color = Hsla {
12894 h: 120.0,
12895 s: 0.5,
12896 l: 0.5,
12897 a: 0.5,
12898 };
12899 let player_color = PlayerColor {
12900 cursor: selection_color,
12901 background: selection_color,
12902 selection: selection_color,
12903 };
12904
12905 let selection = SelectionLayout {
12906 head: DisplayPoint::new(DisplayRow(2), 0),
12907 cursor_shape: CursorShape::Bar,
12908 is_newest: true,
12909 is_local: true,
12910 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 0),
12911 active_rows: DisplayRow(1)..DisplayRow(3),
12912 user_name: None,
12913 };
12914
12915 let selections = vec![(player_color, vec![selection])];
12916 let result = EditorElement::bg_segments_per_row(
12917 DisplayRow(0)..DisplayRow(4),
12918 &selections,
12919 &[],
12920 base_bg,
12921 );
12922
12923 assert_eq!(result.len(), 4);
12924 assert!(result[0].is_empty());
12925 assert_eq!(result[1].len(), 1);
12926 assert_eq!(result[2].len(), 1);
12927 assert!(result[3].is_empty());
12928
12929 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
12930 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
12931 assert_eq!(result[1][0].0.end.column(), u32::MAX);
12932 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
12933 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
12934 assert_eq!(result[2][0].0.end.column(), u32::MAX);
12935 }
12936 }
12937
12938 #[cfg(test)]
12939 fn generate_test_run(len: usize, color: Hsla) -> TextRun {
12940 TextRun {
12941 len,
12942 color,
12943 ..Default::default()
12944 }
12945 }
12946
12947 #[gpui::test]
12948 fn test_split_runs_by_bg_segments(cx: &mut gpui::TestAppContext) {
12949 init_test(cx, |_| {});
12950
12951 let dx = |start: u32, end: u32| {
12952 DisplayPoint::new(DisplayRow(0), start)..DisplayPoint::new(DisplayRow(0), end)
12953 };
12954
12955 let text_color = Hsla {
12956 h: 210.0,
12957 s: 0.1,
12958 l: 0.4,
12959 a: 1.0,
12960 };
12961 let bg_1 = Hsla {
12962 h: 30.0,
12963 s: 0.6,
12964 l: 0.8,
12965 a: 1.0,
12966 };
12967 let bg_2 = Hsla {
12968 h: 200.0,
12969 s: 0.6,
12970 l: 0.2,
12971 a: 1.0,
12972 };
12973 let min_contrast = 45.0;
12974 let adjusted_bg1 = ensure_minimum_contrast(text_color, bg_1, min_contrast);
12975 let adjusted_bg2 = ensure_minimum_contrast(text_color, bg_2, min_contrast);
12976
12977 // Case A: single run; disjoint segments inside the run
12978 {
12979 let runs = vec![generate_test_run(20, text_color)];
12980 let segs = vec![(dx(5, 10), bg_1), (dx(12, 16), bg_2)];
12981 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
12982 // Expected slices: [0,5) [5,10) [10,12) [12,16) [16,20)
12983 assert_eq!(
12984 out.iter().map(|r| r.len).collect::<Vec<_>>(),
12985 vec![5, 5, 2, 4, 4]
12986 );
12987 assert_eq!(out[0].color, text_color);
12988 assert_eq!(out[1].color, adjusted_bg1);
12989 assert_eq!(out[2].color, text_color);
12990 assert_eq!(out[3].color, adjusted_bg2);
12991 assert_eq!(out[4].color, text_color);
12992 }
12993
12994 // Case B: multiple runs; segment extends to end of line (u32::MAX)
12995 {
12996 let runs = vec![
12997 generate_test_run(8, text_color),
12998 generate_test_run(7, text_color),
12999 ];
13000 let segs = vec![(dx(6, u32::MAX), bg_1)];
13001 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13002 // Expected slices across runs: [0,6) [6,8) | [0,7)
13003 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![6, 2, 7]);
13004 assert_eq!(out[0].color, text_color);
13005 assert_eq!(out[1].color, adjusted_bg1);
13006 assert_eq!(out[2].color, adjusted_bg1);
13007 }
13008
13009 // Case C: multi-byte characters
13010 {
13011 // for text: "Hello π δΈη!"
13012 let runs = vec![
13013 generate_test_run(5, text_color), // "Hello"
13014 generate_test_run(6, text_color), // " π "
13015 generate_test_run(6, text_color), // "δΈη"
13016 generate_test_run(1, text_color), // "!"
13017 ];
13018 // selecting "π δΈ"
13019 let segs = vec![(dx(6, 14), bg_1)];
13020 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13021 // "Hello" | " " | "π " | "δΈ" | "η" | "!"
13022 assert_eq!(
13023 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13024 vec![5, 1, 5, 3, 3, 1]
13025 );
13026 assert_eq!(out[0].color, text_color); // "Hello"
13027 assert_eq!(out[2].color, adjusted_bg1); // "π "
13028 assert_eq!(out[3].color, adjusted_bg1); // "δΈ"
13029 assert_eq!(out[4].color, text_color); // "η"
13030 assert_eq!(out[5].color, text_color); // "!"
13031 }
13032
13033 // Case D: split multiple consecutive text runs with segments
13034 {
13035 let segs = vec![
13036 (dx(2, 4), bg_1), // selecting "cd"
13037 (dx(4, 8), bg_2), // selecting "efgh"
13038 (dx(9, 11), bg_1), // selecting "jk"
13039 (dx(12, 16), bg_2), // selecting "mnop"
13040 (dx(18, 19), bg_1), // selecting "s"
13041 ];
13042
13043 // for text: "abcdef"
13044 let runs = vec![
13045 generate_test_run(2, text_color), // ab
13046 generate_test_run(4, text_color), // cdef
13047 ];
13048 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13049 // new splits "ab", "cd", "ef"
13050 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![2, 2, 2]);
13051 assert_eq!(out[0].color, text_color);
13052 assert_eq!(out[1].color, adjusted_bg1);
13053 assert_eq!(out[2].color, adjusted_bg2);
13054
13055 // for text: "ghijklmn"
13056 let runs = vec![
13057 generate_test_run(3, text_color), // ghi
13058 generate_test_run(2, text_color), // jk
13059 generate_test_run(3, text_color), // lmn
13060 ];
13061 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 6); // 2 + 4 from first run
13062 // new splits "gh", "i", "jk", "l", "mn"
13063 assert_eq!(
13064 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13065 vec![2, 1, 2, 1, 2]
13066 );
13067 assert_eq!(out[0].color, adjusted_bg2);
13068 assert_eq!(out[1].color, text_color);
13069 assert_eq!(out[2].color, adjusted_bg1);
13070 assert_eq!(out[3].color, text_color);
13071 assert_eq!(out[4].color, adjusted_bg2);
13072
13073 // for text: "opqrs"
13074 let runs = vec![
13075 generate_test_run(1, text_color), // o
13076 generate_test_run(4, text_color), // pqrs
13077 ];
13078 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 14); // 6 + 3 + 2 + 3 from first two runs
13079 // new splits "o", "p", "qr", "s"
13080 assert_eq!(
13081 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13082 vec![1, 1, 2, 1]
13083 );
13084 assert_eq!(out[0].color, adjusted_bg2);
13085 assert_eq!(out[1].color, adjusted_bg2);
13086 assert_eq!(out[2].color, text_color);
13087 assert_eq!(out[3].color, adjusted_bg1);
13088 }
13089 }
13090}