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::go_to_previous_change);
508 register_action(editor, window, Editor::go_to_next_change);
509 register_action(editor, window, Editor::go_to_prev_reference);
510 register_action(editor, window, Editor::go_to_next_reference);
511
512 register_action(editor, window, |editor, action, window, cx| {
513 if let Some(task) = editor.format(action, window, cx) {
514 task.detach_and_notify_err(window, cx);
515 } else {
516 cx.propagate();
517 }
518 });
519 register_action(editor, window, |editor, action, window, cx| {
520 if let Some(task) = editor.format_selections(action, window, cx) {
521 task.detach_and_notify_err(window, cx);
522 } else {
523 cx.propagate();
524 }
525 });
526 register_action(editor, window, |editor, action, window, cx| {
527 if let Some(task) = editor.organize_imports(action, window, cx) {
528 task.detach_and_notify_err(window, cx);
529 } else {
530 cx.propagate();
531 }
532 });
533 register_action(editor, window, Editor::restart_language_server);
534 register_action(editor, window, Editor::stop_language_server);
535 register_action(editor, window, Editor::show_character_palette);
536 register_action(editor, window, |editor, action, window, cx| {
537 if let Some(task) = editor.confirm_completion(action, window, cx) {
538 task.detach_and_notify_err(window, cx);
539 } else {
540 cx.propagate();
541 }
542 });
543 register_action(editor, window, |editor, action, window, cx| {
544 if let Some(task) = editor.confirm_completion_replace(action, window, cx) {
545 task.detach_and_notify_err(window, cx);
546 } else {
547 cx.propagate();
548 }
549 });
550 register_action(editor, window, |editor, action, window, cx| {
551 if let Some(task) = editor.confirm_completion_insert(action, window, cx) {
552 task.detach_and_notify_err(window, cx);
553 } else {
554 cx.propagate();
555 }
556 });
557 register_action(editor, window, |editor, action, window, cx| {
558 if let Some(task) = editor.compose_completion(action, window, cx) {
559 task.detach_and_notify_err(window, cx);
560 } else {
561 cx.propagate();
562 }
563 });
564 register_action(editor, window, |editor, action, window, cx| {
565 if let Some(task) = editor.confirm_code_action(action, window, cx) {
566 task.detach_and_notify_err(window, cx);
567 } else {
568 cx.propagate();
569 }
570 });
571 register_action(editor, window, |editor, action, window, cx| {
572 if let Some(task) = editor.rename(action, window, cx) {
573 task.detach_and_notify_err(window, cx);
574 } else {
575 cx.propagate();
576 }
577 });
578 register_action(editor, window, |editor, action, window, cx| {
579 if let Some(task) = editor.confirm_rename(action, window, cx) {
580 task.detach_and_notify_err(window, cx);
581 } else {
582 cx.propagate();
583 }
584 });
585 register_action(editor, window, |editor, action, window, cx| {
586 if let Some(task) = editor.find_all_references(action, window, cx) {
587 task.detach_and_log_err(cx);
588 } else {
589 cx.propagate();
590 }
591 });
592 register_action(editor, window, Editor::show_signature_help);
593 register_action(editor, window, Editor::signature_help_prev);
594 register_action(editor, window, Editor::signature_help_next);
595 register_action(editor, window, Editor::show_edit_prediction);
596 register_action(editor, window, Editor::context_menu_first);
597 register_action(editor, window, Editor::context_menu_prev);
598 register_action(editor, window, Editor::context_menu_next);
599 register_action(editor, window, Editor::context_menu_last);
600 register_action(editor, window, Editor::display_cursor_names);
601 register_action(editor, window, Editor::unique_lines_case_insensitive);
602 register_action(editor, window, Editor::unique_lines_case_sensitive);
603 register_action(editor, window, Editor::accept_next_word_edit_prediction);
604 register_action(editor, window, Editor::accept_next_line_edit_prediction);
605 register_action(editor, window, Editor::accept_edit_prediction);
606 register_action(editor, window, Editor::restore_file);
607 register_action(editor, window, Editor::git_restore);
608 register_action(editor, window, Editor::apply_all_diff_hunks);
609 register_action(editor, window, Editor::apply_selected_diff_hunks);
610 register_action(editor, window, Editor::open_active_item_in_terminal);
611 register_action(editor, window, Editor::reload_file);
612 register_action(editor, window, Editor::spawn_nearest_task);
613 register_action(editor, window, Editor::insert_uuid_v4);
614 register_action(editor, window, Editor::insert_uuid_v7);
615 register_action(editor, window, Editor::open_selections_in_multibuffer);
616 register_action(editor, window, Editor::toggle_breakpoint);
617 register_action(editor, window, Editor::edit_log_breakpoint);
618 register_action(editor, window, Editor::enable_breakpoint);
619 register_action(editor, window, Editor::disable_breakpoint);
620 register_action(editor, window, Editor::toggle_read_only);
621 if editor.read(cx).enable_wrap_selections_in_tag(cx) {
622 register_action(editor, window, Editor::wrap_selections_in_tag);
623 }
624 }
625
626 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
627 let position_map = layout.position_map.clone();
628 window.on_key_event({
629 let editor = self.editor.clone();
630 move |event: &ModifiersChangedEvent, phase, window, cx| {
631 if phase != DispatchPhase::Bubble {
632 return;
633 }
634 editor.update(cx, |editor, cx| {
635 let inlay_hint_settings = inlay_hint_settings(
636 editor.selections.newest_anchor().head(),
637 &editor.buffer.read(cx).snapshot(cx),
638 cx,
639 );
640
641 if let Some(inlay_modifiers) = inlay_hint_settings
642 .toggle_on_modifiers_press
643 .as_ref()
644 .filter(|modifiers| modifiers.modified())
645 {
646 editor.refresh_inlay_hints(
647 InlayHintRefreshReason::ModifiersChanged(
648 inlay_modifiers == &event.modifiers,
649 ),
650 cx,
651 );
652 }
653
654 if editor.hover_state.focused(window, cx) {
655 return;
656 }
657
658 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
659 })
660 }
661 });
662 }
663
664 fn mouse_left_down(
665 editor: &mut Editor,
666 event: &MouseDownEvent,
667 position_map: &PositionMap,
668 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
669 window: &mut Window,
670 cx: &mut Context<Editor>,
671 ) {
672 if window.default_prevented() {
673 return;
674 }
675
676 let text_hitbox = &position_map.text_hitbox;
677 let gutter_hitbox = &position_map.gutter_hitbox;
678 let point_for_position = position_map.point_for_position(event.position);
679 let mut click_count = event.click_count;
680 let mut modifiers = event.modifiers;
681
682 if let Some(hovered_hunk) =
683 position_map
684 .display_hunks
685 .iter()
686 .find_map(|(hunk, hunk_hitbox)| match hunk {
687 DisplayDiffHunk::Folded { .. } => None,
688 DisplayDiffHunk::Unfolded {
689 multi_buffer_range, ..
690 } => hunk_hitbox
691 .as_ref()
692 .is_some_and(|hitbox| hitbox.is_hovered(window))
693 .then(|| multi_buffer_range.clone()),
694 })
695 {
696 editor.toggle_single_diff_hunk(hovered_hunk, cx);
697 cx.notify();
698 return;
699 } else if gutter_hitbox.is_hovered(window) {
700 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
701 } else if !text_hitbox.is_hovered(window) {
702 return;
703 }
704
705 if EditorSettings::get_global(cx)
706 .drag_and_drop_selection
707 .enabled
708 && click_count == 1
709 && !modifiers.shift
710 {
711 let newest_anchor = editor.selections.newest_anchor();
712 let snapshot = editor.snapshot(window, cx);
713 let selection = newest_anchor.map(|anchor| anchor.to_display_point(&snapshot));
714 if point_for_position.intersects_selection(&selection) {
715 editor.selection_drag_state = SelectionDragState::ReadyToDrag {
716 selection: newest_anchor.clone(),
717 click_position: event.position,
718 mouse_down_time: Instant::now(),
719 };
720 cx.stop_propagation();
721 return;
722 }
723 }
724
725 let is_singleton = editor.buffer().read(cx).is_singleton();
726
727 if click_count == 2 && !is_singleton {
728 match EditorSettings::get_global(cx).double_click_in_multibuffer {
729 DoubleClickInMultibuffer::Select => {
730 // do nothing special on double click, all selection logic is below
731 }
732 DoubleClickInMultibuffer::Open => {
733 if modifiers.alt {
734 // if double click is made with alt, pretend it's a regular double click without opening and alt,
735 // and run the selection logic.
736 modifiers.alt = false;
737 } else {
738 let scroll_position_row = position_map.scroll_position.y;
739 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
740 / position_map.line_height)
741 as f64
742 + position_map.scroll_position.y)
743 as u32;
744 let multi_buffer_row = position_map
745 .snapshot
746 .display_point_to_point(
747 DisplayPoint::new(DisplayRow(display_row), 0),
748 Bias::Right,
749 )
750 .row;
751 let line_offset_from_top = display_row - scroll_position_row as u32;
752 // if double click is made without alt, open the corresponding excerp
753 editor.open_excerpts_common(
754 Some(JumpData::MultiBufferRow {
755 row: MultiBufferRow(multi_buffer_row),
756 line_offset_from_top,
757 }),
758 false,
759 window,
760 cx,
761 );
762 return;
763 }
764 }
765 }
766 }
767
768 if !is_singleton {
769 let display_row = (ScrollPixelOffset::from(
770 (event.position - gutter_hitbox.bounds.origin).y / position_map.line_height,
771 ) + position_map.scroll_position.y) as u32;
772 let multi_buffer_row = position_map
773 .snapshot
774 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
775 .row;
776 if line_numbers
777 .get(&MultiBufferRow(multi_buffer_row))
778 .is_some_and(|line_layout| {
779 line_layout.segments.iter().any(|segment| {
780 segment
781 .hitbox
782 .as_ref()
783 .is_some_and(|hitbox| hitbox.contains(&event.position))
784 })
785 })
786 {
787 let line_offset_from_top = display_row - position_map.scroll_position.y as u32;
788
789 editor.open_excerpts_common(
790 Some(JumpData::MultiBufferRow {
791 row: MultiBufferRow(multi_buffer_row),
792 line_offset_from_top,
793 }),
794 modifiers.alt,
795 window,
796 cx,
797 );
798 cx.stop_propagation();
799 return;
800 }
801 }
802
803 let position = point_for_position.previous_valid;
804 if let Some(mode) = Editor::columnar_selection_mode(&modifiers, cx) {
805 editor.select(
806 SelectPhase::BeginColumnar {
807 position,
808 reset: match mode {
809 ColumnarMode::FromMouse => true,
810 ColumnarMode::FromSelection => false,
811 },
812 mode,
813 goal_column: point_for_position.exact_unclipped.column(),
814 },
815 window,
816 cx,
817 );
818 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
819 {
820 editor.select(
821 SelectPhase::Extend {
822 position,
823 click_count,
824 },
825 window,
826 cx,
827 );
828 } else {
829 editor.select(
830 SelectPhase::Begin {
831 position,
832 add: Editor::is_alt_pressed(&modifiers, cx),
833 click_count,
834 },
835 window,
836 cx,
837 );
838 }
839 cx.stop_propagation();
840 }
841
842 fn mouse_right_down(
843 editor: &mut Editor,
844 event: &MouseDownEvent,
845 position_map: &PositionMap,
846 window: &mut Window,
847 cx: &mut Context<Editor>,
848 ) {
849 if position_map.gutter_hitbox.is_hovered(window) {
850 let gutter_right_padding = editor.gutter_dimensions.right_padding;
851 let hitbox = &position_map.gutter_hitbox;
852
853 if event.position.x <= hitbox.bounds.right() - gutter_right_padding {
854 let point_for_position = position_map.point_for_position(event.position);
855 editor.set_breakpoint_context_menu(
856 point_for_position.previous_valid.row(),
857 None,
858 event.position,
859 window,
860 cx,
861 );
862 }
863 return;
864 }
865
866 if !position_map.text_hitbox.is_hovered(window) {
867 return;
868 }
869
870 let point_for_position = position_map.point_for_position(event.position);
871 mouse_context_menu::deploy_context_menu(
872 editor,
873 Some(event.position),
874 point_for_position.previous_valid,
875 window,
876 cx,
877 );
878 cx.stop_propagation();
879 }
880
881 fn mouse_middle_down(
882 editor: &mut Editor,
883 event: &MouseDownEvent,
884 position_map: &PositionMap,
885 window: &mut Window,
886 cx: &mut Context<Editor>,
887 ) {
888 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
889 return;
890 }
891
892 let point_for_position = position_map.point_for_position(event.position);
893 let position = point_for_position.previous_valid;
894
895 editor.select(
896 SelectPhase::BeginColumnar {
897 position,
898 reset: true,
899 mode: ColumnarMode::FromMouse,
900 goal_column: point_for_position.exact_unclipped.column(),
901 },
902 window,
903 cx,
904 );
905 }
906
907 fn mouse_up(
908 editor: &mut Editor,
909 event: &MouseUpEvent,
910 position_map: &PositionMap,
911 window: &mut Window,
912 cx: &mut Context<Editor>,
913 ) {
914 let text_hitbox = &position_map.text_hitbox;
915 let end_selection = editor.has_pending_selection();
916 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
917 let point_for_position = position_map.point_for_position(event.position);
918
919 match editor.selection_drag_state {
920 SelectionDragState::ReadyToDrag {
921 selection: _,
922 ref click_position,
923 mouse_down_time: _,
924 } => {
925 if event.position == *click_position {
926 editor.select(
927 SelectPhase::Begin {
928 position: point_for_position.previous_valid,
929 add: false,
930 click_count: 1, // ready to drag state only occurs on click count 1
931 },
932 window,
933 cx,
934 );
935 editor.selection_drag_state = SelectionDragState::None;
936 cx.stop_propagation();
937 return;
938 } else {
939 debug_panic!("drag state can never be in ready state after drag")
940 }
941 }
942 SelectionDragState::Dragging { ref selection, .. } => {
943 let snapshot = editor.snapshot(window, cx);
944 let selection_display = selection.map(|anchor| anchor.to_display_point(&snapshot));
945 if !point_for_position.intersects_selection(&selection_display)
946 && text_hitbox.is_hovered(window)
947 {
948 let is_cut = !(cfg!(target_os = "macos") && event.modifiers.alt
949 || cfg!(not(target_os = "macos")) && event.modifiers.control);
950 editor.move_selection_on_drop(
951 &selection.clone(),
952 point_for_position.previous_valid,
953 is_cut,
954 window,
955 cx,
956 );
957 }
958 editor.selection_drag_state = SelectionDragState::None;
959 cx.stop_propagation();
960 cx.notify();
961 return;
962 }
963 _ => {}
964 }
965
966 if end_selection {
967 editor.select(SelectPhase::End, window, cx);
968 }
969
970 if end_selection && pending_nonempty_selections {
971 cx.stop_propagation();
972 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
973 && event.button == MouseButton::Middle
974 {
975 #[allow(
976 clippy::collapsible_if,
977 clippy::needless_return,
978 reason = "The cfg-block below makes this a false positive"
979 )]
980 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
981 return;
982 }
983
984 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
985 if EditorSettings::get_global(cx).middle_click_paste {
986 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
987 let point_for_position = position_map.point_for_position(event.position);
988 let position = point_for_position.previous_valid;
989
990 editor.select(
991 SelectPhase::Begin {
992 position,
993 add: false,
994 click_count: 1,
995 },
996 window,
997 cx,
998 );
999 editor.insert(&text, window, cx);
1000 }
1001 cx.stop_propagation()
1002 }
1003 }
1004 }
1005
1006 fn click(
1007 editor: &mut Editor,
1008 event: &ClickEvent,
1009 position_map: &PositionMap,
1010 window: &mut Window,
1011 cx: &mut Context<Editor>,
1012 ) {
1013 let text_hitbox = &position_map.text_hitbox;
1014 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
1015
1016 let hovered_link_modifier = Editor::is_cmd_or_ctrl_pressed(&event.modifiers(), cx);
1017 let mouse_down_hovered_link_modifier = if let ClickEvent::Mouse(mouse_event) = event {
1018 Editor::is_cmd_or_ctrl_pressed(&mouse_event.down.modifiers, cx)
1019 } else {
1020 true
1021 };
1022
1023 if let Some(mouse_position) = event.mouse_position()
1024 && !pending_nonempty_selections
1025 && hovered_link_modifier
1026 && mouse_down_hovered_link_modifier
1027 && text_hitbox.is_hovered(window)
1028 && !matches!(
1029 editor.selection_drag_state,
1030 SelectionDragState::Dragging { .. }
1031 )
1032 {
1033 let point = position_map.point_for_position(mouse_position);
1034 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
1035 editor.selection_drag_state = SelectionDragState::None;
1036
1037 cx.stop_propagation();
1038 }
1039 }
1040
1041 fn pressure_click(
1042 editor: &mut Editor,
1043 event: &MousePressureEvent,
1044 position_map: &PositionMap,
1045 window: &mut Window,
1046 cx: &mut Context<Editor>,
1047 ) {
1048 let text_hitbox = &position_map.text_hitbox;
1049 let force_click_possible =
1050 matches!(editor.prev_pressure_stage, Some(PressureStage::Normal))
1051 && event.stage == PressureStage::Force;
1052
1053 editor.prev_pressure_stage = Some(event.stage);
1054
1055 if force_click_possible && text_hitbox.is_hovered(window) {
1056 let point = position_map.point_for_position(event.position);
1057 editor.handle_click_hovered_link(point, event.modifiers, window, cx);
1058 editor.selection_drag_state = SelectionDragState::None;
1059 cx.stop_propagation();
1060 }
1061 }
1062
1063 fn mouse_dragged(
1064 editor: &mut Editor,
1065 event: &MouseMoveEvent,
1066 position_map: &PositionMap,
1067 window: &mut Window,
1068 cx: &mut Context<Editor>,
1069 ) {
1070 if !editor.has_pending_selection()
1071 && matches!(editor.selection_drag_state, SelectionDragState::None)
1072 {
1073 return;
1074 }
1075
1076 let point_for_position = position_map.point_for_position(event.position);
1077 let text_hitbox = &position_map.text_hitbox;
1078
1079 let scroll_delta = {
1080 let text_bounds = text_hitbox.bounds;
1081 let mut scroll_delta = gpui::Point::<f32>::default();
1082 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
1083 let top = text_bounds.origin.y + vertical_margin;
1084 let bottom = text_bounds.bottom_left().y - vertical_margin;
1085 if event.position.y < top {
1086 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
1087 }
1088 if event.position.y > bottom {
1089 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
1090 }
1091
1092 // We need horizontal width of text
1093 let style = editor.style.clone().unwrap_or_default();
1094 let font_id = window.text_system().resolve_font(&style.text.font());
1095 let font_size = style.text.font_size.to_pixels(window.rem_size());
1096 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
1097
1098 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
1099
1100 let scroll_space: Pixels = scroll_margin_x * em_width;
1101
1102 let left = text_bounds.origin.x + scroll_space;
1103 let right = text_bounds.top_right().x - scroll_space;
1104
1105 if event.position.x < left {
1106 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
1107 }
1108 if event.position.x > right {
1109 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
1110 }
1111 scroll_delta
1112 };
1113
1114 if !editor.has_pending_selection() {
1115 let drop_anchor = position_map
1116 .snapshot
1117 .display_point_to_anchor(point_for_position.previous_valid, Bias::Left);
1118 match editor.selection_drag_state {
1119 SelectionDragState::Dragging {
1120 ref mut drop_cursor,
1121 ref mut hide_drop_cursor,
1122 ..
1123 } => {
1124 drop_cursor.start = drop_anchor;
1125 drop_cursor.end = drop_anchor;
1126 *hide_drop_cursor = !text_hitbox.is_hovered(window);
1127 editor.apply_scroll_delta(scroll_delta, window, cx);
1128 cx.notify();
1129 }
1130 SelectionDragState::ReadyToDrag {
1131 ref selection,
1132 ref click_position,
1133 ref mouse_down_time,
1134 } => {
1135 let drag_and_drop_delay = Duration::from_millis(
1136 EditorSettings::get_global(cx)
1137 .drag_and_drop_selection
1138 .delay
1139 .0,
1140 );
1141 if mouse_down_time.elapsed() >= drag_and_drop_delay {
1142 let drop_cursor = Selection {
1143 id: post_inc(&mut editor.selections.next_selection_id()),
1144 start: drop_anchor,
1145 end: drop_anchor,
1146 reversed: false,
1147 goal: SelectionGoal::None,
1148 };
1149 editor.selection_drag_state = SelectionDragState::Dragging {
1150 selection: selection.clone(),
1151 drop_cursor,
1152 hide_drop_cursor: false,
1153 };
1154 editor.apply_scroll_delta(scroll_delta, window, cx);
1155 cx.notify();
1156 } else {
1157 let click_point = position_map.point_for_position(*click_position);
1158 editor.selection_drag_state = SelectionDragState::None;
1159 editor.select(
1160 SelectPhase::Begin {
1161 position: click_point.previous_valid,
1162 add: false,
1163 click_count: 1,
1164 },
1165 window,
1166 cx,
1167 );
1168 editor.select(
1169 SelectPhase::Update {
1170 position: point_for_position.previous_valid,
1171 goal_column: point_for_position.exact_unclipped.column(),
1172 scroll_delta,
1173 },
1174 window,
1175 cx,
1176 );
1177 }
1178 }
1179 _ => {}
1180 }
1181 } else {
1182 editor.select(
1183 SelectPhase::Update {
1184 position: point_for_position.previous_valid,
1185 goal_column: point_for_position.exact_unclipped.column(),
1186 scroll_delta,
1187 },
1188 window,
1189 cx,
1190 );
1191 }
1192 }
1193
1194 pub(crate) fn mouse_moved(
1195 editor: &mut Editor,
1196 event: &MouseMoveEvent,
1197 position_map: &PositionMap,
1198 window: &mut Window,
1199 cx: &mut Context<Editor>,
1200 ) {
1201 let text_hitbox = &position_map.text_hitbox;
1202 let gutter_hitbox = &position_map.gutter_hitbox;
1203 let modifiers = event.modifiers;
1204 let text_hovered = text_hitbox.is_hovered(window);
1205 let gutter_hovered = gutter_hitbox.bounds.contains(&event.position);
1206 editor.set_gutter_hovered(gutter_hovered, cx);
1207 editor.show_mouse_cursor(cx);
1208
1209 let point_for_position = position_map.point_for_position(event.position);
1210 let valid_point = point_for_position.previous_valid;
1211
1212 let hovered_diff_control = position_map
1213 .diff_hunk_control_bounds
1214 .iter()
1215 .find(|(_, bounds)| bounds.contains(&event.position))
1216 .map(|(row, _)| *row);
1217
1218 let hovered_diff_hunk_row = if let Some(control_row) = hovered_diff_control {
1219 Some(control_row)
1220 } else if text_hovered {
1221 let current_row = valid_point.row();
1222 position_map.display_hunks.iter().find_map(|(hunk, _)| {
1223 if let DisplayDiffHunk::Unfolded {
1224 display_row_range, ..
1225 } = hunk
1226 {
1227 if display_row_range.contains(¤t_row) {
1228 Some(display_row_range.start)
1229 } else {
1230 None
1231 }
1232 } else {
1233 None
1234 }
1235 })
1236 } else {
1237 None
1238 };
1239
1240 if hovered_diff_hunk_row != editor.hovered_diff_hunk_row {
1241 editor.hovered_diff_hunk_row = hovered_diff_hunk_row;
1242 cx.notify();
1243 }
1244
1245 if let Some((bounds, buffer_id, blame_entry)) = &position_map.inline_blame_bounds {
1246 let mouse_over_inline_blame = bounds.contains(&event.position);
1247 let mouse_over_popover = editor
1248 .inline_blame_popover
1249 .as_ref()
1250 .and_then(|state| state.popover_bounds)
1251 .is_some_and(|bounds| bounds.contains(&event.position));
1252 let keyboard_grace = editor
1253 .inline_blame_popover
1254 .as_ref()
1255 .is_some_and(|state| state.keyboard_grace);
1256
1257 if mouse_over_inline_blame || mouse_over_popover {
1258 editor.show_blame_popover(*buffer_id, blame_entry, event.position, false, cx);
1259 } else if !keyboard_grace {
1260 editor.hide_blame_popover(false, cx);
1261 }
1262 } else {
1263 let keyboard_grace = editor
1264 .inline_blame_popover
1265 .as_ref()
1266 .is_some_and(|state| state.keyboard_grace);
1267 if !keyboard_grace {
1268 editor.hide_blame_popover(false, cx);
1269 }
1270 }
1271
1272 // Handle diff review indicator when gutter is hovered in diff mode with AI enabled
1273 let show_diff_review = editor.show_diff_review_button()
1274 && cx.has_flag::<DiffReviewFeatureFlag>()
1275 && !DisableAiSettings::get_global(cx).disable_ai;
1276
1277 let diff_review_indicator = if gutter_hovered && show_diff_review {
1278 let is_visible = editor
1279 .gutter_diff_review_indicator
1280 .0
1281 .is_some_and(|indicator| indicator.is_active);
1282
1283 if !is_visible {
1284 editor
1285 .gutter_diff_review_indicator
1286 .1
1287 .get_or_insert_with(|| {
1288 cx.spawn(async move |this, cx| {
1289 cx.background_executor()
1290 .timer(Duration::from_millis(200))
1291 .await;
1292
1293 this.update(cx, |this, cx| {
1294 if let Some(indicator) =
1295 this.gutter_diff_review_indicator.0.as_mut()
1296 {
1297 indicator.is_active = true;
1298 cx.notify();
1299 }
1300 })
1301 .ok();
1302 })
1303 });
1304 }
1305
1306 Some(PhantomDiffReviewIndicator {
1307 display_row: valid_point.row(),
1308 is_active: is_visible,
1309 })
1310 } else {
1311 editor.gutter_diff_review_indicator.1 = None;
1312 None
1313 };
1314
1315 if diff_review_indicator != editor.gutter_diff_review_indicator.0 {
1316 editor.gutter_diff_review_indicator.0 = diff_review_indicator;
1317 cx.notify();
1318 }
1319
1320 // Don't show breakpoint indicator when diff review indicator is active on this row
1321 let is_on_diff_review_button_row = diff_review_indicator.is_some_and(|indicator| {
1322 indicator.is_active && indicator.display_row == valid_point.row()
1323 });
1324
1325 let breakpoint_indicator = if gutter_hovered && !is_on_diff_review_button_row {
1326 let buffer_anchor = position_map
1327 .snapshot
1328 .display_point_to_anchor(valid_point, Bias::Left);
1329
1330 if let Some((buffer_snapshot, file)) = position_map
1331 .snapshot
1332 .buffer_snapshot()
1333 .buffer_for_excerpt(buffer_anchor.excerpt_id)
1334 .and_then(|buffer| buffer.file().map(|file| (buffer, file)))
1335 {
1336 let as_point = text::ToPoint::to_point(&buffer_anchor.text_anchor, buffer_snapshot);
1337
1338 let is_visible = editor
1339 .gutter_breakpoint_indicator
1340 .0
1341 .is_some_and(|indicator| indicator.is_active);
1342
1343 let has_existing_breakpoint =
1344 editor.breakpoint_store.as_ref().is_some_and(|store| {
1345 let Some(project) = &editor.project else {
1346 return false;
1347 };
1348 let Some(abs_path) = project.read(cx).absolute_path(
1349 &ProjectPath {
1350 path: file.path().clone(),
1351 worktree_id: file.worktree_id(cx),
1352 },
1353 cx,
1354 ) else {
1355 return false;
1356 };
1357 store
1358 .read(cx)
1359 .breakpoint_at_row(&abs_path, as_point.row, cx)
1360 .is_some()
1361 });
1362
1363 if !is_visible {
1364 editor.gutter_breakpoint_indicator.1.get_or_insert_with(|| {
1365 cx.spawn(async move |this, cx| {
1366 cx.background_executor()
1367 .timer(Duration::from_millis(200))
1368 .await;
1369
1370 this.update(cx, |this, cx| {
1371 if let Some(indicator) = this.gutter_breakpoint_indicator.0.as_mut()
1372 {
1373 indicator.is_active = true;
1374 cx.notify();
1375 }
1376 })
1377 .ok();
1378 })
1379 });
1380 }
1381
1382 Some(PhantomBreakpointIndicator {
1383 display_row: valid_point.row(),
1384 is_active: is_visible,
1385 collides_with_existing_breakpoint: has_existing_breakpoint,
1386 })
1387 } else {
1388 editor.gutter_breakpoint_indicator.1 = None;
1389 None
1390 }
1391 } else {
1392 editor.gutter_breakpoint_indicator.1 = None;
1393 None
1394 };
1395
1396 if &breakpoint_indicator != &editor.gutter_breakpoint_indicator.0 {
1397 editor.gutter_breakpoint_indicator.0 = breakpoint_indicator;
1398 cx.notify();
1399 }
1400
1401 // Don't trigger hover popover if mouse is hovering over context menu
1402 if text_hovered {
1403 editor.update_hovered_link(
1404 point_for_position,
1405 &position_map.snapshot,
1406 modifiers,
1407 window,
1408 cx,
1409 );
1410
1411 if let Some(point) = point_for_position.as_valid() {
1412 let anchor = position_map
1413 .snapshot
1414 .buffer_snapshot()
1415 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
1416 hover_at(editor, Some(anchor), window, cx);
1417 Self::update_visible_cursor(editor, point, position_map, window, cx);
1418 } else {
1419 editor.update_inlay_link_and_hover_points(
1420 &position_map.snapshot,
1421 point_for_position,
1422 modifiers.secondary(),
1423 modifiers.shift,
1424 window,
1425 cx,
1426 );
1427 }
1428 } else {
1429 editor.hide_hovered_link(cx);
1430 hover_at(editor, None, window, cx);
1431 }
1432 }
1433
1434 fn update_visible_cursor(
1435 editor: &mut Editor,
1436 point: DisplayPoint,
1437 position_map: &PositionMap,
1438 window: &mut Window,
1439 cx: &mut Context<Editor>,
1440 ) {
1441 let snapshot = &position_map.snapshot;
1442 let Some(hub) = editor.collaboration_hub() else {
1443 return;
1444 };
1445 let start = snapshot.display_snapshot.clip_point(
1446 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
1447 Bias::Left,
1448 );
1449 let end = snapshot.display_snapshot.clip_point(
1450 DisplayPoint::new(
1451 point.row(),
1452 (point.column() + 1).min(snapshot.line_len(point.row())),
1453 ),
1454 Bias::Right,
1455 );
1456
1457 let range = snapshot
1458 .buffer_snapshot()
1459 .anchor_before(start.to_point(&snapshot.display_snapshot))
1460 ..snapshot
1461 .buffer_snapshot()
1462 .anchor_after(end.to_point(&snapshot.display_snapshot));
1463
1464 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
1465 return;
1466 };
1467 let key = crate::HoveredCursor {
1468 replica_id: selection.replica_id,
1469 selection_id: selection.selection.id,
1470 };
1471 editor.hovered_cursors.insert(
1472 key.clone(),
1473 cx.spawn_in(window, async move |editor, cx| {
1474 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
1475 editor
1476 .update(cx, |editor, cx| {
1477 editor.hovered_cursors.remove(&key);
1478 cx.notify();
1479 })
1480 .ok();
1481 }),
1482 );
1483 cx.notify()
1484 }
1485
1486 fn layout_selections(
1487 &self,
1488 start_anchor: Anchor,
1489 end_anchor: Anchor,
1490 local_selections: &[Selection<Point>],
1491 snapshot: &EditorSnapshot,
1492 start_row: DisplayRow,
1493 end_row: DisplayRow,
1494 window: &mut Window,
1495 cx: &mut App,
1496 ) -> (
1497 Vec<(PlayerColor, Vec<SelectionLayout>)>,
1498 BTreeMap<DisplayRow, LineHighlightSpec>,
1499 Option<DisplayPoint>,
1500 ) {
1501 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1502 let mut active_rows = BTreeMap::new();
1503 let mut newest_selection_head = None;
1504
1505 let Some(editor_with_selections) = self.editor_with_selections(cx) else {
1506 return (selections, active_rows, newest_selection_head);
1507 };
1508
1509 editor_with_selections.update(cx, |editor, cx| {
1510 if editor.show_local_selections {
1511 let mut layouts = Vec::new();
1512 let newest = editor.selections.newest(&editor.display_snapshot(cx));
1513 for selection in local_selections.iter().cloned() {
1514 let is_empty = selection.start == selection.end;
1515 let is_newest = selection == newest;
1516
1517 let layout = SelectionLayout::new(
1518 selection,
1519 editor.selections.line_mode(),
1520 editor.cursor_offset_on_selection,
1521 editor.cursor_shape,
1522 &snapshot.display_snapshot,
1523 is_newest,
1524 editor.leader_id.is_none(),
1525 None,
1526 );
1527 if is_newest {
1528 newest_selection_head = Some(layout.head);
1529 }
1530
1531 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1532 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1533 {
1534 let contains_non_empty_selection = active_rows
1535 .entry(DisplayRow(row))
1536 .or_insert_with(LineHighlightSpec::default);
1537 contains_non_empty_selection.selection |= !is_empty;
1538 }
1539 layouts.push(layout);
1540 }
1541
1542 let mut player = editor.current_user_player_color(cx);
1543 if !editor.is_focused(window) {
1544 const UNFOCUS_EDITOR_SELECTION_OPACITY: f32 = 0.5;
1545 player.selection = player.selection.opacity(UNFOCUS_EDITOR_SELECTION_OPACITY);
1546 }
1547 selections.push((player, layouts));
1548
1549 if let SelectionDragState::Dragging {
1550 ref selection,
1551 ref drop_cursor,
1552 ref hide_drop_cursor,
1553 } = editor.selection_drag_state
1554 && !hide_drop_cursor
1555 && (drop_cursor
1556 .start
1557 .cmp(&selection.start, &snapshot.buffer_snapshot())
1558 .eq(&Ordering::Less)
1559 || drop_cursor
1560 .end
1561 .cmp(&selection.end, &snapshot.buffer_snapshot())
1562 .eq(&Ordering::Greater))
1563 {
1564 let drag_cursor_layout = SelectionLayout::new(
1565 drop_cursor.clone(),
1566 false,
1567 editor.cursor_offset_on_selection,
1568 CursorShape::Bar,
1569 &snapshot.display_snapshot,
1570 false,
1571 false,
1572 None,
1573 );
1574 let absent_color = cx.theme().players().absent();
1575 selections.push((absent_color, vec![drag_cursor_layout]));
1576 }
1577 }
1578
1579 if let Some(collaboration_hub) = &editor.collaboration_hub {
1580 // When following someone, render the local selections in their color.
1581 if let Some(leader_id) = editor.leader_id {
1582 match leader_id {
1583 CollaboratorId::PeerId(peer_id) => {
1584 if let Some(collaborator) =
1585 collaboration_hub.collaborators(cx).get(&peer_id)
1586 && let Some(participant_index) = collaboration_hub
1587 .user_participant_indices(cx)
1588 .get(&collaborator.user_id)
1589 && let Some((local_selection_style, _)) = selections.first_mut()
1590 {
1591 *local_selection_style = cx
1592 .theme()
1593 .players()
1594 .color_for_participant(participant_index.0);
1595 }
1596 }
1597 CollaboratorId::Agent => {
1598 if let Some((local_selection_style, _)) = selections.first_mut() {
1599 *local_selection_style = cx.theme().players().agent();
1600 }
1601 }
1602 }
1603 }
1604
1605 let mut remote_selections = HashMap::default();
1606 for selection in snapshot.remote_selections_in_range(
1607 &(start_anchor..end_anchor),
1608 collaboration_hub.as_ref(),
1609 cx,
1610 ) {
1611 // Don't re-render the leader's selections, since the local selections
1612 // match theirs.
1613 if Some(selection.collaborator_id) == editor.leader_id {
1614 continue;
1615 }
1616 let key = HoveredCursor {
1617 replica_id: selection.replica_id,
1618 selection_id: selection.selection.id,
1619 };
1620
1621 let is_shown =
1622 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1623
1624 remote_selections
1625 .entry(selection.replica_id)
1626 .or_insert((selection.color, Vec::new()))
1627 .1
1628 .push(SelectionLayout::new(
1629 selection.selection,
1630 selection.line_mode,
1631 editor.cursor_offset_on_selection,
1632 selection.cursor_shape,
1633 &snapshot.display_snapshot,
1634 false,
1635 false,
1636 if is_shown { selection.user_name } else { None },
1637 ));
1638 }
1639
1640 selections.extend(remote_selections.into_values());
1641 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1642 let cursor_offset_on_selection = editor.cursor_offset_on_selection;
1643
1644 let layouts = snapshot
1645 .buffer_snapshot()
1646 .selections_in_range(&(start_anchor..end_anchor), true)
1647 .map(move |(_, line_mode, cursor_shape, selection)| {
1648 SelectionLayout::new(
1649 selection,
1650 line_mode,
1651 cursor_offset_on_selection,
1652 cursor_shape,
1653 &snapshot.display_snapshot,
1654 false,
1655 false,
1656 None,
1657 )
1658 })
1659 .collect::<Vec<_>>();
1660 let player = editor.current_user_player_color(cx);
1661 selections.push((player, layouts));
1662 }
1663 });
1664
1665 #[cfg(debug_assertions)]
1666 Self::layout_debug_ranges(
1667 &mut selections,
1668 start_anchor..end_anchor,
1669 &snapshot.display_snapshot,
1670 cx,
1671 );
1672
1673 (selections, active_rows, newest_selection_head)
1674 }
1675
1676 fn collect_cursors(
1677 &self,
1678 snapshot: &EditorSnapshot,
1679 cx: &mut App,
1680 ) -> Vec<(DisplayPoint, Hsla)> {
1681 let editor = self.editor.read(cx);
1682 let mut cursors = Vec::new();
1683 let mut skip_local = false;
1684 let mut add_cursor = |anchor: Anchor, color| {
1685 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1686 };
1687 // Remote cursors
1688 if let Some(collaboration_hub) = &editor.collaboration_hub {
1689 for remote_selection in snapshot.remote_selections_in_range(
1690 &(Anchor::min()..Anchor::max()),
1691 collaboration_hub.deref(),
1692 cx,
1693 ) {
1694 add_cursor(
1695 remote_selection.selection.head(),
1696 remote_selection.color.cursor,
1697 );
1698 if Some(remote_selection.collaborator_id) == editor.leader_id {
1699 skip_local = true;
1700 }
1701 }
1702 }
1703 // Local cursors
1704 if !skip_local {
1705 let color = cx.theme().players().local().cursor;
1706 editor
1707 .selections
1708 .disjoint_anchors()
1709 .iter()
1710 .for_each(|selection| {
1711 add_cursor(selection.head(), color);
1712 });
1713 if let Some(ref selection) = editor.selections.pending_anchor() {
1714 add_cursor(selection.head(), color);
1715 }
1716 }
1717 cursors
1718 }
1719
1720 fn layout_visible_cursors(
1721 &self,
1722 snapshot: &EditorSnapshot,
1723 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1724 row_block_types: &HashMap<DisplayRow, bool>,
1725 visible_display_row_range: Range<DisplayRow>,
1726 line_layouts: &[LineWithInvisibles],
1727 text_hitbox: &Hitbox,
1728 content_origin: gpui::Point<Pixels>,
1729 scroll_position: gpui::Point<ScrollOffset>,
1730 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
1731 line_height: Pixels,
1732 em_width: Pixels,
1733 em_advance: Pixels,
1734 autoscroll_containing_element: bool,
1735 window: &mut Window,
1736 cx: &mut App,
1737 ) -> Vec<CursorLayout> {
1738 let mut autoscroll_bounds = None;
1739 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1740 let mut cursors = Vec::new();
1741
1742 let show_local_cursors = editor.show_local_cursors(window, cx);
1743
1744 for (player_color, selections) in selections {
1745 for selection in selections {
1746 let cursor_position = selection.head;
1747
1748 let in_range = visible_display_row_range.contains(&cursor_position.row());
1749 if (selection.is_local && !show_local_cursors)
1750 || !in_range
1751 || row_block_types.get(&cursor_position.row()) == Some(&true)
1752 {
1753 continue;
1754 }
1755
1756 let cursor_row_layout = &line_layouts
1757 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1758 let cursor_column = cursor_position.column() as usize;
1759
1760 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column)
1761 + cursor_row_layout
1762 .alignment_offset(self.style.text.text_align, text_hitbox.size.width);
1763 let cursor_next_x = cursor_row_layout.x_for_index(cursor_column + 1)
1764 + cursor_row_layout
1765 .alignment_offset(self.style.text.text_align, text_hitbox.size.width);
1766 let mut block_width = cursor_next_x - cursor_character_x;
1767 if block_width == Pixels::ZERO {
1768 block_width = em_advance;
1769 }
1770 let block_text = if let CursorShape::Block = selection.cursor_shape {
1771 snapshot
1772 .grapheme_at(cursor_position)
1773 .or_else(|| {
1774 if snapshot.is_empty() {
1775 snapshot.placeholder_text().and_then(|s| {
1776 s.graphemes(true).next().map(|s| s.to_string().into())
1777 })
1778 } else {
1779 None
1780 }
1781 })
1782 .map(|text| {
1783 let len = text.len();
1784
1785 let mut font = cursor_row_layout
1786 .font_id_for_index(cursor_column)
1787 .and_then(|cursor_font_id| {
1788 window.text_system().get_font_for_id(cursor_font_id)
1789 })
1790 .unwrap_or(self.style.text.font());
1791 font.features = self.style.text.font_features.clone();
1792
1793 // Invert the text color for the block cursor. Ensure that the text
1794 // color is opaque enough to be visible against the background color.
1795 //
1796 // 0.75 is an arbitrary threshold to determine if the background color is
1797 // opaque enough to use as a text color.
1798 //
1799 // TODO: In the future we should ensure themes have a `text_inverse` color.
1800 let color = if cx.theme().colors().editor_background.a < 0.75 {
1801 match cx.theme().appearance {
1802 Appearance::Dark => Hsla::black(),
1803 Appearance::Light => Hsla::white(),
1804 }
1805 } else {
1806 cx.theme().colors().editor_background
1807 };
1808
1809 window.text_system().shape_line(
1810 text,
1811 cursor_row_layout.font_size,
1812 &[TextRun {
1813 len,
1814 font,
1815 color,
1816 ..Default::default()
1817 }],
1818 None,
1819 )
1820 })
1821 } else {
1822 None
1823 };
1824
1825 let x = cursor_character_x - scroll_pixel_position.x.into();
1826 let y = ((cursor_position.row().as_f64() - scroll_position.y)
1827 * ScrollPixelOffset::from(line_height))
1828 .into();
1829 if selection.is_newest {
1830 editor.pixel_position_of_newest_cursor = Some(point(
1831 text_hitbox.origin.x + x + block_width / 2.,
1832 text_hitbox.origin.y + y + line_height / 2.,
1833 ));
1834
1835 if autoscroll_containing_element {
1836 let top = text_hitbox.origin.y
1837 + ((cursor_position.row().as_f64() - scroll_position.y - 3.)
1838 .max(0.)
1839 * ScrollPixelOffset::from(line_height))
1840 .into();
1841 let left = text_hitbox.origin.x
1842 + ((cursor_position.column() as ScrollOffset
1843 - scroll_position.x
1844 - 3.)
1845 .max(0.)
1846 * ScrollPixelOffset::from(em_width))
1847 .into();
1848
1849 let bottom = text_hitbox.origin.y
1850 + ((cursor_position.row().as_f64() - scroll_position.y + 4.)
1851 * ScrollPixelOffset::from(line_height))
1852 .into();
1853 let right = text_hitbox.origin.x
1854 + ((cursor_position.column() as ScrollOffset - scroll_position.x
1855 + 4.)
1856 * ScrollPixelOffset::from(em_width))
1857 .into();
1858
1859 autoscroll_bounds =
1860 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1861 }
1862 }
1863
1864 let mut cursor = CursorLayout {
1865 color: player_color.cursor,
1866 block_width,
1867 origin: point(x, y),
1868 line_height,
1869 shape: selection.cursor_shape,
1870 block_text,
1871 cursor_name: None,
1872 };
1873 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1874 string: name,
1875 color: self.style.background,
1876 is_top_row: cursor_position.row().0 == 0,
1877 });
1878 cursor.layout(content_origin, cursor_name, window, cx);
1879 cursors.push(cursor);
1880 }
1881 }
1882
1883 cursors
1884 });
1885
1886 if let Some(bounds) = autoscroll_bounds {
1887 window.request_autoscroll(bounds);
1888 }
1889
1890 cursor_layouts
1891 }
1892
1893 fn layout_scrollbars(
1894 &self,
1895 snapshot: &EditorSnapshot,
1896 scrollbar_layout_information: &ScrollbarLayoutInformation,
1897 content_offset: gpui::Point<Pixels>,
1898 scroll_position: gpui::Point<ScrollOffset>,
1899 non_visible_cursors: bool,
1900 right_margin: Pixels,
1901 editor_width: Pixels,
1902 window: &mut Window,
1903 cx: &mut App,
1904 ) -> Option<EditorScrollbars> {
1905 let show_scrollbars = self.editor.read(cx).show_scrollbars;
1906 if (!show_scrollbars.horizontal && !show_scrollbars.vertical)
1907 || self.style.scrollbar_width.is_zero()
1908 {
1909 return None;
1910 }
1911
1912 // If a drag took place after we started dragging the scrollbar,
1913 // cancel the scrollbar drag.
1914 if cx.has_active_drag() {
1915 self.editor.update(cx, |editor, cx| {
1916 editor.scroll_manager.reset_scrollbar_state(cx)
1917 });
1918 }
1919
1920 let editor_settings = EditorSettings::get_global(cx);
1921 let scrollbar_settings = editor_settings.scrollbar;
1922 let show_scrollbars = match scrollbar_settings.show {
1923 ShowScrollbar::Auto => {
1924 let editor = self.editor.read(cx);
1925 let is_singleton = editor.buffer_kind(cx) == ItemBufferKind::Singleton;
1926 // Git
1927 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot().has_diff_hunks())
1928 ||
1929 // Buffer Search Results
1930 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1931 ||
1932 // Selected Text Occurrences
1933 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1934 ||
1935 // Selected Symbol Occurrences
1936 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1937 ||
1938 // Diagnostics
1939 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot().has_diagnostics())
1940 ||
1941 // Cursors out of sight
1942 non_visible_cursors
1943 ||
1944 // Scrollmanager
1945 editor.scroll_manager.scrollbars_visible()
1946 }
1947 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1948 ShowScrollbar::Always => true,
1949 ShowScrollbar::Never => return None,
1950 };
1951
1952 // The horizontal scrollbar is usually slightly offset to align nicely with
1953 // indent guides. However, this offset is not needed if indent guides are
1954 // disabled for the current editor.
1955 let content_offset = self
1956 .editor
1957 .read(cx)
1958 .show_indent_guides
1959 .is_none_or(|should_show| should_show)
1960 .then_some(content_offset)
1961 .unwrap_or_default();
1962
1963 Some(EditorScrollbars::from_scrollbar_axes(
1964 ScrollbarAxes {
1965 horizontal: scrollbar_settings.axes.horizontal
1966 && self.editor.read(cx).show_scrollbars.horizontal,
1967 vertical: scrollbar_settings.axes.vertical
1968 && self.editor.read(cx).show_scrollbars.vertical,
1969 },
1970 scrollbar_layout_information,
1971 content_offset,
1972 scroll_position,
1973 self.style.scrollbar_width,
1974 right_margin,
1975 editor_width,
1976 show_scrollbars,
1977 self.editor.read(cx).scroll_manager.active_scrollbar_state(),
1978 window,
1979 ))
1980 }
1981
1982 fn layout_minimap(
1983 &self,
1984 snapshot: &EditorSnapshot,
1985 minimap_width: Pixels,
1986 scroll_position: gpui::Point<f64>,
1987 scrollbar_layout_information: &ScrollbarLayoutInformation,
1988 scrollbar_layout: Option<&EditorScrollbars>,
1989 window: &mut Window,
1990 cx: &mut App,
1991 ) -> Option<MinimapLayout> {
1992 let minimap_editor = self.editor.read(cx).minimap().cloned()?;
1993
1994 let minimap_settings = EditorSettings::get_global(cx).minimap;
1995
1996 if minimap_settings.on_active_editor() {
1997 let active_editor = self.editor.read(cx).workspace().and_then(|ws| {
1998 ws.read(cx)
1999 .active_pane()
2000 .read(cx)
2001 .active_item()
2002 .and_then(|i| i.act_as::<Editor>(cx))
2003 });
2004 if active_editor.is_some_and(|e| e != self.editor) {
2005 return None;
2006 }
2007 }
2008
2009 if !snapshot.mode.is_full()
2010 || minimap_width.is_zero()
2011 || matches!(
2012 minimap_settings.show,
2013 ShowMinimap::Auto if scrollbar_layout.is_none_or(|layout| !layout.visible)
2014 )
2015 {
2016 return None;
2017 }
2018
2019 const MINIMAP_AXIS: ScrollbarAxis = ScrollbarAxis::Vertical;
2020
2021 let ScrollbarLayoutInformation {
2022 editor_bounds,
2023 scroll_range,
2024 glyph_grid_cell,
2025 } = scrollbar_layout_information;
2026
2027 let line_height = glyph_grid_cell.height;
2028 let scroll_position = scroll_position.along(MINIMAP_AXIS);
2029
2030 let top_right_anchor = scrollbar_layout
2031 .and_then(|layout| layout.vertical.as_ref())
2032 .map(|vertical_scrollbar| vertical_scrollbar.hitbox.origin)
2033 .unwrap_or_else(|| editor_bounds.top_right());
2034
2035 let thumb_state = self
2036 .editor
2037 .read_with(cx, |editor, _| editor.scroll_manager.minimap_thumb_state());
2038
2039 let show_thumb = match minimap_settings.thumb {
2040 MinimapThumb::Always => true,
2041 MinimapThumb::Hover => thumb_state.is_some(),
2042 };
2043
2044 let minimap_bounds = Bounds::from_corner_and_size(
2045 Corner::TopRight,
2046 top_right_anchor,
2047 size(minimap_width, editor_bounds.size.height),
2048 );
2049 let minimap_line_height = self.get_minimap_line_height(
2050 minimap_editor
2051 .read(cx)
2052 .text_style_refinement
2053 .as_ref()
2054 .and_then(|refinement| refinement.font_size)
2055 .unwrap_or(MINIMAP_FONT_SIZE),
2056 window,
2057 cx,
2058 );
2059 let minimap_height = minimap_bounds.size.height;
2060
2061 let visible_editor_lines = (editor_bounds.size.height / line_height) as f64;
2062 let total_editor_lines = (scroll_range.height / line_height) as f64;
2063 let minimap_lines = (minimap_height / minimap_line_height) as f64;
2064
2065 let minimap_scroll_top = MinimapLayout::calculate_minimap_top_offset(
2066 total_editor_lines,
2067 visible_editor_lines,
2068 minimap_lines,
2069 scroll_position,
2070 );
2071
2072 let layout = ScrollbarLayout::for_minimap(
2073 window.insert_hitbox(minimap_bounds, HitboxBehavior::Normal),
2074 visible_editor_lines,
2075 total_editor_lines,
2076 minimap_line_height,
2077 scroll_position,
2078 minimap_scroll_top,
2079 show_thumb,
2080 )
2081 .with_thumb_state(thumb_state);
2082
2083 minimap_editor.update(cx, |editor, cx| {
2084 editor.set_scroll_position(point(0., minimap_scroll_top), window, cx)
2085 });
2086
2087 // Required for the drop shadow to be visible
2088 const PADDING_OFFSET: Pixels = px(4.);
2089
2090 let mut minimap = div()
2091 .size_full()
2092 .shadow_xs()
2093 .px(PADDING_OFFSET)
2094 .child(minimap_editor)
2095 .into_any_element();
2096
2097 let extended_bounds = minimap_bounds.extend(Edges {
2098 right: PADDING_OFFSET,
2099 left: PADDING_OFFSET,
2100 ..Default::default()
2101 });
2102 minimap.layout_as_root(extended_bounds.size.into(), window, cx);
2103 window.with_absolute_element_offset(extended_bounds.origin, |window| {
2104 minimap.prepaint(window, cx)
2105 });
2106
2107 Some(MinimapLayout {
2108 minimap,
2109 thumb_layout: layout,
2110 thumb_border_style: minimap_settings.thumb_border,
2111 minimap_line_height,
2112 minimap_scroll_top,
2113 max_scroll_top: total_editor_lines,
2114 })
2115 }
2116
2117 fn get_minimap_line_height(
2118 &self,
2119 font_size: AbsoluteLength,
2120 window: &mut Window,
2121 cx: &mut App,
2122 ) -> Pixels {
2123 let rem_size = self.rem_size(cx).unwrap_or(window.rem_size());
2124 let mut text_style = self.style.text.clone();
2125 text_style.font_size = font_size;
2126 text_style.line_height_in_pixels(rem_size)
2127 }
2128
2129 fn get_minimap_width(
2130 &self,
2131 minimap_settings: &Minimap,
2132 scrollbars_shown: bool,
2133 text_width: Pixels,
2134 em_width: Pixels,
2135 font_size: Pixels,
2136 rem_size: Pixels,
2137 cx: &App,
2138 ) -> Option<Pixels> {
2139 if minimap_settings.show == ShowMinimap::Auto && !scrollbars_shown {
2140 return None;
2141 }
2142
2143 let minimap_font_size = self.editor.read_with(cx, |editor, cx| {
2144 editor.minimap().map(|minimap_editor| {
2145 minimap_editor
2146 .read(cx)
2147 .text_style_refinement
2148 .as_ref()
2149 .and_then(|refinement| refinement.font_size)
2150 .unwrap_or(MINIMAP_FONT_SIZE)
2151 })
2152 })?;
2153
2154 let minimap_em_width = em_width * (minimap_font_size.to_pixels(rem_size) / font_size);
2155
2156 let minimap_width = (text_width * MinimapLayout::MINIMAP_WIDTH_PCT)
2157 .min(minimap_em_width * minimap_settings.max_width_columns.get() as f32);
2158
2159 (minimap_width >= minimap_em_width * MinimapLayout::MINIMAP_MIN_WIDTH_COLUMNS)
2160 .then_some(minimap_width)
2161 }
2162
2163 fn prepaint_crease_toggles(
2164 &self,
2165 crease_toggles: &mut [Option<AnyElement>],
2166 line_height: Pixels,
2167 gutter_dimensions: &GutterDimensions,
2168 gutter_settings: crate::editor_settings::Gutter,
2169 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2170 gutter_hitbox: &Hitbox,
2171 window: &mut Window,
2172 cx: &mut App,
2173 ) {
2174 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
2175 if let Some(crease_toggle) = crease_toggle {
2176 debug_assert!(gutter_settings.folds);
2177 let available_space = size(
2178 AvailableSpace::MinContent,
2179 AvailableSpace::Definite(line_height * 0.55),
2180 );
2181 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
2182
2183 let position = point(
2184 gutter_dimensions.width - gutter_dimensions.right_padding,
2185 ix as f32 * line_height
2186 - (scroll_pixel_position.y % ScrollPixelOffset::from(line_height)).into(),
2187 );
2188 let centering_offset = point(
2189 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
2190 (line_height - crease_toggle_size.height) / 2.,
2191 );
2192 let origin = gutter_hitbox.origin + position + centering_offset;
2193 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
2194 }
2195 }
2196 }
2197
2198 fn prepaint_expand_toggles(
2199 &self,
2200 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
2201 window: &mut Window,
2202 cx: &mut App,
2203 ) {
2204 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
2205 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
2206 expand_toggle.layout_as_root(available_space, window, cx);
2207 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
2208 }
2209 }
2210
2211 fn prepaint_crease_trailers(
2212 &self,
2213 trailers: Vec<Option<AnyElement>>,
2214 lines: &[LineWithInvisibles],
2215 line_height: Pixels,
2216 content_origin: gpui::Point<Pixels>,
2217 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2218 em_width: Pixels,
2219 window: &mut Window,
2220 cx: &mut App,
2221 ) -> Vec<Option<CreaseTrailerLayout>> {
2222 trailers
2223 .into_iter()
2224 .enumerate()
2225 .map(|(ix, element)| {
2226 let mut element = element?;
2227 let available_space = size(
2228 AvailableSpace::MinContent,
2229 AvailableSpace::Definite(line_height),
2230 );
2231 let size = element.layout_as_root(available_space, window, cx);
2232
2233 let line = &lines[ix];
2234 let padding = if line.width == Pixels::ZERO {
2235 Pixels::ZERO
2236 } else {
2237 4. * em_width
2238 };
2239 let position = point(
2240 Pixels::from(scroll_pixel_position.x) + line.width + padding,
2241 ix as f32 * line_height
2242 - (scroll_pixel_position.y % ScrollPixelOffset::from(line_height)).into(),
2243 );
2244 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
2245 let origin = content_origin + position + centering_offset;
2246 element.prepaint_as_root(origin, available_space, window, cx);
2247 Some(CreaseTrailerLayout {
2248 element,
2249 bounds: Bounds::new(origin, size),
2250 })
2251 })
2252 .collect()
2253 }
2254
2255 // Folds contained in a hunk are ignored apart from shrinking visual size
2256 // If a fold contains any hunks then that fold line is marked as modified
2257 fn layout_gutter_diff_hunks(
2258 &self,
2259 line_height: Pixels,
2260 gutter_hitbox: &Hitbox,
2261 display_rows: Range<DisplayRow>,
2262 snapshot: &EditorSnapshot,
2263 window: &mut Window,
2264 cx: &mut App,
2265 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
2266 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
2267 let mut display_hunks = snapshot
2268 .display_diff_hunks_for_rows(display_rows, folded_buffers)
2269 .map(|hunk| (hunk, None))
2270 .collect::<Vec<_>>();
2271 let git_gutter_setting = ProjectSettings::get_global(cx).git.git_gutter;
2272 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
2273 for (hunk, hitbox) in &mut display_hunks {
2274 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
2275 let hunk_bounds =
2276 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
2277 *hitbox = Some(window.insert_hitbox(hunk_bounds, HitboxBehavior::BlockMouse));
2278 }
2279 }
2280 }
2281
2282 display_hunks
2283 }
2284
2285 fn layout_inline_diagnostics(
2286 &self,
2287 line_layouts: &[LineWithInvisibles],
2288 crease_trailers: &[Option<CreaseTrailerLayout>],
2289 row_block_types: &HashMap<DisplayRow, bool>,
2290 content_origin: gpui::Point<Pixels>,
2291 scroll_position: gpui::Point<ScrollOffset>,
2292 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2293 edit_prediction_popover_origin: Option<gpui::Point<Pixels>>,
2294 start_row: DisplayRow,
2295 end_row: DisplayRow,
2296 line_height: Pixels,
2297 em_width: Pixels,
2298 style: &EditorStyle,
2299 window: &mut Window,
2300 cx: &mut App,
2301 ) -> HashMap<DisplayRow, AnyElement> {
2302 let max_severity = match self
2303 .editor
2304 .read(cx)
2305 .inline_diagnostics_enabled()
2306 .then(|| {
2307 ProjectSettings::get_global(cx)
2308 .diagnostics
2309 .inline
2310 .max_severity
2311 .unwrap_or_else(|| self.editor.read(cx).diagnostics_max_severity)
2312 .into_lsp()
2313 })
2314 .flatten()
2315 {
2316 Some(max_severity) => max_severity,
2317 None => return HashMap::default(),
2318 };
2319
2320 let active_diagnostics_group =
2321 if let ActiveDiagnostic::Group(group) = &self.editor.read(cx).active_diagnostics {
2322 Some(group.group_id)
2323 } else {
2324 None
2325 };
2326
2327 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
2328 let snapshot = editor.snapshot(window, cx);
2329 editor
2330 .inline_diagnostics
2331 .iter()
2332 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
2333 .filter(|(_, diagnostic)| match active_diagnostics_group {
2334 Some(active_diagnostics_group) => {
2335 // Active diagnostics are all shown in the editor already, no need to display them inline
2336 diagnostic.group_id != active_diagnostics_group
2337 }
2338 None => true,
2339 })
2340 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
2341 .skip_while(|(point, _)| point.row() < start_row)
2342 .take_while(|(point, _)| point.row() < end_row)
2343 .filter(|(point, _)| !row_block_types.contains_key(&point.row()))
2344 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
2345 acc.entry(point.row())
2346 .or_insert_with(Vec::new)
2347 .push(diagnostic);
2348 acc
2349 })
2350 });
2351
2352 if diagnostics_by_rows.is_empty() {
2353 return HashMap::default();
2354 }
2355
2356 let severity_to_color = |sev: &lsp::DiagnosticSeverity| match sev {
2357 &lsp::DiagnosticSeverity::ERROR => Color::Error,
2358 &lsp::DiagnosticSeverity::WARNING => Color::Warning,
2359 &lsp::DiagnosticSeverity::INFORMATION => Color::Info,
2360 &lsp::DiagnosticSeverity::HINT => Color::Hint,
2361 _ => Color::Error,
2362 };
2363
2364 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
2365 let min_x = column_pixels(
2366 &self.style,
2367 ProjectSettings::get_global(cx)
2368 .diagnostics
2369 .inline
2370 .min_column as usize,
2371 window,
2372 );
2373
2374 let mut elements = HashMap::default();
2375 for (row, mut diagnostics) in diagnostics_by_rows {
2376 diagnostics.sort_by_key(|diagnostic| {
2377 (
2378 diagnostic.severity,
2379 std::cmp::Reverse(diagnostic.is_primary),
2380 diagnostic.start.row,
2381 diagnostic.start.column,
2382 )
2383 });
2384
2385 let Some(diagnostic_to_render) = diagnostics
2386 .iter()
2387 .find(|diagnostic| diagnostic.is_primary)
2388 .or_else(|| diagnostics.first())
2389 else {
2390 continue;
2391 };
2392
2393 let pos_y = content_origin.y + line_height * (row.0 as f64 - scroll_position.y) as f32;
2394
2395 let window_ix = row.0.saturating_sub(start_row.0) as usize;
2396 let pos_x = {
2397 let crease_trailer_layout = &crease_trailers[window_ix];
2398 let line_layout = &line_layouts[window_ix];
2399
2400 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
2401 crease_trailer.bounds.right()
2402 } else {
2403 Pixels::from(
2404 ScrollPixelOffset::from(content_origin.x + line_layout.width)
2405 - scroll_pixel_position.x,
2406 )
2407 };
2408
2409 let padded_line = line_end + padding;
2410 let min_start = Pixels::from(
2411 ScrollPixelOffset::from(content_origin.x + min_x) - scroll_pixel_position.x,
2412 );
2413
2414 cmp::max(padded_line, min_start)
2415 };
2416
2417 let behind_edit_prediction_popover = edit_prediction_popover_origin
2418 .as_ref()
2419 .is_some_and(|edit_prediction_popover_origin| {
2420 (pos_y..pos_y + line_height).contains(&edit_prediction_popover_origin.y)
2421 });
2422 let opacity = if behind_edit_prediction_popover {
2423 0.5
2424 } else {
2425 1.0
2426 };
2427
2428 let mut element = h_flex()
2429 .id(("diagnostic", row.0))
2430 .h(line_height)
2431 .w_full()
2432 .px_1()
2433 .rounded_xs()
2434 .opacity(opacity)
2435 .bg(severity_to_color(&diagnostic_to_render.severity)
2436 .color(cx)
2437 .opacity(0.05))
2438 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
2439 .text_sm()
2440 .font(style.text.font())
2441 .child(diagnostic_to_render.message.clone())
2442 .into_any();
2443
2444 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
2445
2446 elements.insert(row, element);
2447 }
2448
2449 elements
2450 }
2451
2452 fn layout_inline_code_actions(
2453 &self,
2454 display_point: DisplayPoint,
2455 content_origin: gpui::Point<Pixels>,
2456 scroll_position: gpui::Point<ScrollOffset>,
2457 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2458 line_height: Pixels,
2459 snapshot: &EditorSnapshot,
2460 window: &mut Window,
2461 cx: &mut App,
2462 ) -> Option<AnyElement> {
2463 if !snapshot
2464 .show_code_actions
2465 .unwrap_or(EditorSettings::get_global(cx).inline_code_actions)
2466 {
2467 return None;
2468 }
2469
2470 let icon_size = ui::IconSize::XSmall;
2471 let mut button = self.editor.update(cx, |editor, cx| {
2472 editor.available_code_actions.as_ref()?;
2473 let active = editor
2474 .context_menu
2475 .borrow()
2476 .as_ref()
2477 .and_then(|menu| {
2478 if let crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2479 deployed_from,
2480 ..
2481 }) = menu
2482 {
2483 deployed_from.as_ref()
2484 } else {
2485 None
2486 }
2487 })
2488 .is_some_and(|source| matches!(source, CodeActionSource::Indicator(..)));
2489 Some(editor.render_inline_code_actions(icon_size, display_point.row(), active, cx))
2490 })?;
2491
2492 let buffer_point = display_point.to_point(&snapshot.display_snapshot);
2493
2494 // do not show code action for folded line
2495 if snapshot.is_line_folded(MultiBufferRow(buffer_point.row)) {
2496 return None;
2497 }
2498
2499 // do not show code action for blank line with cursor
2500 let line_indent = snapshot
2501 .display_snapshot
2502 .buffer_snapshot()
2503 .line_indent_for_row(MultiBufferRow(buffer_point.row));
2504 if line_indent.is_line_blank() {
2505 return None;
2506 }
2507
2508 const INLINE_SLOT_CHAR_LIMIT: u32 = 4;
2509 const MAX_ALTERNATE_DISTANCE: u32 = 8;
2510
2511 let excerpt_id = snapshot
2512 .display_snapshot
2513 .buffer_snapshot()
2514 .excerpt_containing(buffer_point..buffer_point)
2515 .map(|excerpt| excerpt.id());
2516
2517 let is_valid_row = |row_candidate: u32| -> bool {
2518 // move to other row if folded row
2519 if snapshot.is_line_folded(MultiBufferRow(row_candidate)) {
2520 return false;
2521 }
2522 if buffer_point.row == row_candidate {
2523 // move to other row if cursor is in slot
2524 if buffer_point.column < INLINE_SLOT_CHAR_LIMIT {
2525 return false;
2526 }
2527 } else {
2528 let candidate_point = MultiBufferPoint {
2529 row: row_candidate,
2530 column: 0,
2531 };
2532 let candidate_excerpt_id = snapshot
2533 .display_snapshot
2534 .buffer_snapshot()
2535 .excerpt_containing(candidate_point..candidate_point)
2536 .map(|excerpt| excerpt.id());
2537 // move to other row if different excerpt
2538 if excerpt_id != candidate_excerpt_id {
2539 return false;
2540 }
2541 }
2542 let line_indent = snapshot
2543 .display_snapshot
2544 .buffer_snapshot()
2545 .line_indent_for_row(MultiBufferRow(row_candidate));
2546 // use this row if it's blank
2547 if line_indent.is_line_blank() {
2548 true
2549 } else {
2550 // use this row if code starts after slot
2551 let indent_size = snapshot
2552 .display_snapshot
2553 .buffer_snapshot()
2554 .indent_size_for_line(MultiBufferRow(row_candidate));
2555 indent_size.len >= INLINE_SLOT_CHAR_LIMIT
2556 }
2557 };
2558
2559 let new_buffer_row = if is_valid_row(buffer_point.row) {
2560 Some(buffer_point.row)
2561 } else {
2562 let max_row = snapshot.display_snapshot.buffer_snapshot().max_point().row;
2563 (1..=MAX_ALTERNATE_DISTANCE).find_map(|offset| {
2564 let row_above = buffer_point.row.saturating_sub(offset);
2565 let row_below = buffer_point.row + offset;
2566 if row_above != buffer_point.row && is_valid_row(row_above) {
2567 Some(row_above)
2568 } else if row_below <= max_row && is_valid_row(row_below) {
2569 Some(row_below)
2570 } else {
2571 None
2572 }
2573 })
2574 }?;
2575
2576 let new_display_row = snapshot
2577 .display_snapshot
2578 .point_to_display_point(
2579 Point {
2580 row: new_buffer_row,
2581 column: buffer_point.column,
2582 },
2583 text::Bias::Left,
2584 )
2585 .row();
2586
2587 let start_y = content_origin.y
2588 + (((new_display_row.as_f64() - scroll_position.y) as f32) * line_height)
2589 + (line_height / 2.0)
2590 - (icon_size.square(window, cx) / 2.);
2591 let start_x = (ScrollPixelOffset::from(content_origin.x) - scroll_pixel_position.x
2592 + ScrollPixelOffset::from(window.rem_size() * 0.1))
2593 .into();
2594
2595 let absolute_offset = gpui::point(start_x, start_y);
2596 button.layout_as_root(gpui::AvailableSpace::min_size(), window, cx);
2597 button.prepaint_as_root(
2598 absolute_offset,
2599 gpui::AvailableSpace::min_size(),
2600 window,
2601 cx,
2602 );
2603 Some(button)
2604 }
2605
2606 fn layout_inline_blame(
2607 &self,
2608 display_row: DisplayRow,
2609 row_info: &RowInfo,
2610 line_layout: &LineWithInvisibles,
2611 crease_trailer: Option<&CreaseTrailerLayout>,
2612 em_width: Pixels,
2613 content_origin: gpui::Point<Pixels>,
2614 scroll_position: gpui::Point<ScrollOffset>,
2615 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2616 line_height: Pixels,
2617 window: &mut Window,
2618 cx: &mut App,
2619 ) -> Option<InlineBlameLayout> {
2620 if !self
2621 .editor
2622 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
2623 {
2624 return None;
2625 }
2626
2627 let editor = self.editor.read(cx);
2628 let blame = editor.blame.clone()?;
2629 let padding = {
2630 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
2631
2632 let mut padding = ProjectSettings::get_global(cx).git.inline_blame.padding as f32;
2633
2634 if let Some(edit_prediction) = editor.active_edit_prediction.as_ref()
2635 && let EditPrediction::Edit {
2636 display_mode: EditDisplayMode::TabAccept,
2637 ..
2638 } = &edit_prediction.completion
2639 {
2640 padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS
2641 }
2642
2643 padding * em_width
2644 };
2645
2646 let (buffer_id, entry) = blame
2647 .update(cx, |blame, cx| {
2648 blame.blame_for_rows(&[*row_info], cx).next()
2649 })
2650 .flatten()?;
2651
2652 let mut element = render_inline_blame_entry(entry.clone(), &self.style, cx)?;
2653
2654 let start_y =
2655 content_origin.y + line_height * ((display_row.as_f64() - scroll_position.y) as f32);
2656
2657 let start_x = {
2658 let line_end = if let Some(crease_trailer) = crease_trailer {
2659 crease_trailer.bounds.right()
2660 } else {
2661 Pixels::from(
2662 ScrollPixelOffset::from(content_origin.x + line_layout.width)
2663 - scroll_pixel_position.x,
2664 )
2665 };
2666
2667 let padded_line_end = line_end + padding;
2668
2669 let min_column_in_pixels = column_pixels(
2670 &self.style,
2671 ProjectSettings::get_global(cx).git.inline_blame.min_column as usize,
2672 window,
2673 );
2674 let min_start = Pixels::from(
2675 ScrollPixelOffset::from(content_origin.x + min_column_in_pixels)
2676 - scroll_pixel_position.x,
2677 );
2678
2679 cmp::max(padded_line_end, min_start)
2680 };
2681
2682 let absolute_offset = point(start_x, start_y);
2683 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2684 let bounds = Bounds::new(absolute_offset, size);
2685
2686 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
2687
2688 Some(InlineBlameLayout {
2689 element,
2690 bounds,
2691 buffer_id,
2692 entry,
2693 })
2694 }
2695
2696 fn layout_blame_popover(
2697 &self,
2698 editor_snapshot: &EditorSnapshot,
2699 text_hitbox: &Hitbox,
2700 line_height: Pixels,
2701 window: &mut Window,
2702 cx: &mut App,
2703 ) {
2704 if !self.editor.read(cx).inline_blame_popover.is_some() {
2705 return;
2706 }
2707
2708 let Some(blame) = self.editor.read(cx).blame.clone() else {
2709 return;
2710 };
2711 let cursor_point = self
2712 .editor
2713 .read(cx)
2714 .selections
2715 .newest::<language::Point>(&editor_snapshot.display_snapshot)
2716 .head();
2717
2718 let Some((buffer, buffer_point, _)) = editor_snapshot
2719 .buffer_snapshot()
2720 .point_to_buffer_point(cursor_point)
2721 else {
2722 return;
2723 };
2724
2725 let row_info = RowInfo {
2726 buffer_id: Some(buffer.remote_id()),
2727 buffer_row: Some(buffer_point.row),
2728 ..Default::default()
2729 };
2730
2731 let Some((buffer_id, blame_entry)) = blame
2732 .update(cx, |blame, cx| blame.blame_for_rows(&[row_info], cx).next())
2733 .flatten()
2734 else {
2735 return;
2736 };
2737
2738 let Some((popover_state, target_point)) = self.editor.read_with(cx, |editor, _| {
2739 editor
2740 .inline_blame_popover
2741 .as_ref()
2742 .map(|state| (state.popover_state.clone(), state.position))
2743 }) else {
2744 return;
2745 };
2746
2747 let workspace = self
2748 .editor
2749 .read_with(cx, |editor, _| editor.workspace().map(|w| w.downgrade()));
2750
2751 let maybe_element = workspace.and_then(|workspace| {
2752 render_blame_entry_popover(
2753 blame_entry,
2754 popover_state.scroll_handle,
2755 popover_state.commit_message,
2756 popover_state.markdown,
2757 workspace,
2758 &blame,
2759 buffer_id,
2760 window,
2761 cx,
2762 )
2763 });
2764
2765 if let Some(mut element) = maybe_element {
2766 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2767 let overall_height = size.height + HOVER_POPOVER_GAP;
2768 let popover_origin = if target_point.y > overall_height {
2769 point(target_point.x, target_point.y - size.height)
2770 } else {
2771 point(
2772 target_point.x,
2773 target_point.y + line_height + HOVER_POPOVER_GAP,
2774 )
2775 };
2776
2777 let horizontal_offset = (text_hitbox.top_right().x
2778 - POPOVER_RIGHT_OFFSET
2779 - (popover_origin.x + size.width))
2780 .min(Pixels::ZERO);
2781
2782 let origin = point(popover_origin.x + horizontal_offset, popover_origin.y);
2783 let popover_bounds = Bounds::new(origin, size);
2784
2785 self.editor.update(cx, |editor, _| {
2786 if let Some(state) = &mut editor.inline_blame_popover {
2787 state.popover_bounds = Some(popover_bounds);
2788 }
2789 });
2790
2791 window.defer_draw(element, origin, 2);
2792 }
2793 }
2794
2795 fn layout_blame_entries(
2796 &self,
2797 buffer_rows: &[RowInfo],
2798 em_width: Pixels,
2799 scroll_position: gpui::Point<ScrollOffset>,
2800 line_height: Pixels,
2801 gutter_hitbox: &Hitbox,
2802 max_width: Option<Pixels>,
2803 window: &mut Window,
2804 cx: &mut App,
2805 ) -> Option<Vec<AnyElement>> {
2806 if !self
2807 .editor
2808 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
2809 {
2810 return None;
2811 }
2812
2813 let blame = self.editor.read(cx).blame.clone()?;
2814 let workspace = self.editor.read(cx).workspace()?;
2815 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
2816 blame.blame_for_rows(buffer_rows, cx).collect()
2817 });
2818
2819 let width = if let Some(max_width) = max_width {
2820 AvailableSpace::Definite(max_width)
2821 } else {
2822 AvailableSpace::MaxContent
2823 };
2824 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
2825 let start_x = em_width;
2826
2827 let mut last_used_color: Option<(Hsla, Oid)> = None;
2828 let blame_renderer = cx.global::<GlobalBlameRenderer>().0.clone();
2829
2830 let shaped_lines = blamed_rows
2831 .into_iter()
2832 .enumerate()
2833 .flat_map(|(ix, blame_entry)| {
2834 let (buffer_id, blame_entry) = blame_entry?;
2835 let mut element = render_blame_entry(
2836 ix,
2837 &blame,
2838 blame_entry,
2839 &self.style,
2840 &mut last_used_color,
2841 self.editor.clone(),
2842 workspace.clone(),
2843 buffer_id,
2844 &*blame_renderer,
2845 window,
2846 cx,
2847 )?;
2848
2849 let start_y = ix as f32 * line_height
2850 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height));
2851 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
2852
2853 element.prepaint_as_root(
2854 absolute_offset,
2855 size(width, AvailableSpace::MinContent),
2856 window,
2857 cx,
2858 );
2859
2860 Some(element)
2861 })
2862 .collect();
2863
2864 Some(shaped_lines)
2865 }
2866
2867 fn layout_indent_guides(
2868 &self,
2869 content_origin: gpui::Point<Pixels>,
2870 text_origin: gpui::Point<Pixels>,
2871 visible_buffer_range: Range<MultiBufferRow>,
2872 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2873 line_height: Pixels,
2874 snapshot: &DisplaySnapshot,
2875 window: &mut Window,
2876 cx: &mut App,
2877 ) -> Option<Vec<IndentGuideLayout>> {
2878 let indent_guides = self.editor.update(cx, |editor, cx| {
2879 editor.indent_guides(visible_buffer_range, snapshot, cx)
2880 })?;
2881
2882 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
2883 editor
2884 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
2885 .unwrap_or_default()
2886 });
2887
2888 Some(
2889 indent_guides
2890 .into_iter()
2891 .enumerate()
2892 .filter_map(|(i, indent_guide)| {
2893 let single_indent_width =
2894 column_pixels(&self.style, indent_guide.tab_size as usize, window);
2895 let total_width = single_indent_width * indent_guide.depth as f32;
2896 let start_x = Pixels::from(
2897 ScrollOffset::from(content_origin.x + total_width)
2898 - scroll_pixel_position.x,
2899 );
2900 if start_x >= text_origin.x {
2901 let (offset_y, length) = Self::calculate_indent_guide_bounds(
2902 indent_guide.start_row..indent_guide.end_row,
2903 line_height,
2904 snapshot,
2905 );
2906
2907 let start_y = Pixels::from(
2908 ScrollOffset::from(content_origin.y) + offset_y
2909 - scroll_pixel_position.y,
2910 );
2911
2912 Some(IndentGuideLayout {
2913 origin: point(start_x, start_y),
2914 length,
2915 single_indent_width,
2916 depth: indent_guide.depth,
2917 active: active_indent_guide_indices.contains(&i),
2918 settings: indent_guide.settings,
2919 })
2920 } else {
2921 None
2922 }
2923 })
2924 .collect(),
2925 )
2926 }
2927
2928 fn layout_wrap_guides(
2929 &self,
2930 em_advance: Pixels,
2931 scroll_position: gpui::Point<f64>,
2932 content_origin: gpui::Point<Pixels>,
2933 scrollbar_layout: Option<&EditorScrollbars>,
2934 vertical_scrollbar_width: Pixels,
2935 hitbox: &Hitbox,
2936 window: &Window,
2937 cx: &App,
2938 ) -> SmallVec<[(Pixels, bool); 2]> {
2939 let scroll_left = scroll_position.x as f32 * em_advance;
2940 let content_origin = content_origin.x;
2941 let horizontal_offset = content_origin - scroll_left;
2942 let vertical_scrollbar_width = scrollbar_layout
2943 .and_then(|layout| layout.visible.then_some(vertical_scrollbar_width))
2944 .unwrap_or_default();
2945
2946 self.editor
2947 .read(cx)
2948 .wrap_guides(cx)
2949 .into_iter()
2950 .flat_map(|(guide, active)| {
2951 let wrap_position = column_pixels(&self.style, guide, window);
2952 let wrap_guide_x = wrap_position + horizontal_offset;
2953 let display_wrap_guide = wrap_guide_x >= content_origin
2954 && wrap_guide_x <= hitbox.bounds.right() - vertical_scrollbar_width;
2955
2956 display_wrap_guide.then_some((wrap_guide_x, active))
2957 })
2958 .collect()
2959 }
2960
2961 fn calculate_indent_guide_bounds(
2962 row_range: Range<MultiBufferRow>,
2963 line_height: Pixels,
2964 snapshot: &DisplaySnapshot,
2965 ) -> (f64, gpui::Pixels) {
2966 let start_point = Point::new(row_range.start.0, 0);
2967 let end_point = Point::new(row_range.end.0, 0);
2968
2969 let row_range = start_point.to_display_point(snapshot).row()
2970 ..end_point.to_display_point(snapshot).row();
2971
2972 let mut prev_line = start_point;
2973 prev_line.row = prev_line.row.saturating_sub(1);
2974 let prev_line = prev_line.to_display_point(snapshot).row();
2975
2976 let mut cons_line = end_point;
2977 cons_line.row += 1;
2978 let cons_line = cons_line.to_display_point(snapshot).row();
2979
2980 let mut offset_y = row_range.start.as_f64() * f64::from(line_height);
2981 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
2982
2983 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
2984 if row_range.end == cons_line {
2985 length += line_height;
2986 }
2987
2988 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
2989 // we want to extend the indent guide to the start of the block.
2990 let mut block_height = 0;
2991 let mut block_offset = 0;
2992 let mut found_excerpt_header = false;
2993 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
2994 if matches!(
2995 block,
2996 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
2997 ) {
2998 found_excerpt_header = true;
2999 break;
3000 }
3001 block_offset += block.height();
3002 block_height += block.height();
3003 }
3004 if !found_excerpt_header {
3005 offset_y -= block_offset as f64 * f64::from(line_height);
3006 length += block_height as f32 * line_height;
3007 }
3008
3009 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
3010 // we want to ensure that the indent guide stops before the excerpt header.
3011 let mut block_height = 0;
3012 let mut found_excerpt_header = false;
3013 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
3014 if matches!(
3015 block,
3016 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
3017 ) {
3018 found_excerpt_header = true;
3019 }
3020 block_height += block.height();
3021 }
3022 if found_excerpt_header {
3023 length -= block_height as f32 * line_height;
3024 }
3025
3026 (offset_y, length)
3027 }
3028
3029 fn layout_breakpoints(
3030 &self,
3031 line_height: Pixels,
3032 range: Range<DisplayRow>,
3033 scroll_position: gpui::Point<ScrollOffset>,
3034 gutter_dimensions: &GutterDimensions,
3035 gutter_hitbox: &Hitbox,
3036 snapshot: &EditorSnapshot,
3037 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
3038 row_infos: &[RowInfo],
3039 window: &mut Window,
3040 cx: &mut App,
3041 ) -> Vec<AnyElement> {
3042 self.editor.update(cx, |editor, cx| {
3043 breakpoints
3044 .into_iter()
3045 .filter_map(|(display_row, (text_anchor, bp, state))| {
3046 if row_infos
3047 .get((display_row.0.saturating_sub(range.start.0)) as usize)
3048 .is_some_and(|row_info| {
3049 row_info.expand_info.is_some()
3050 || row_info
3051 .diff_status
3052 .is_some_and(|status| status.is_deleted())
3053 })
3054 {
3055 return None;
3056 }
3057
3058 if range.start > display_row || range.end < display_row {
3059 return None;
3060 }
3061
3062 let row =
3063 MultiBufferRow(DisplayPoint::new(display_row, 0).to_point(snapshot).row);
3064 if snapshot.is_line_folded(row) {
3065 return None;
3066 }
3067
3068 let button = editor.render_breakpoint(text_anchor, display_row, &bp, state, cx);
3069
3070 let button = prepaint_gutter_button(
3071 button.into_any_element(),
3072 display_row,
3073 line_height,
3074 gutter_dimensions,
3075 scroll_position,
3076 gutter_hitbox,
3077 window,
3078 cx,
3079 );
3080 Some(button)
3081 })
3082 .collect_vec()
3083 })
3084 }
3085
3086 fn should_render_diff_review_button(
3087 &self,
3088 range: Range<DisplayRow>,
3089 row_infos: &[RowInfo],
3090 cx: &App,
3091 ) -> Option<(DisplayRow, Option<u32>)> {
3092 if !cx.has_flag::<DiffReviewFeatureFlag>() {
3093 return None;
3094 }
3095
3096 let show_diff_review_button = self.editor.read(cx).show_diff_review_button();
3097 if !show_diff_review_button {
3098 return None;
3099 }
3100
3101 let indicator = self.editor.read(cx).gutter_diff_review_indicator.0?;
3102 if !indicator.is_active {
3103 return None;
3104 }
3105
3106 let display_row = indicator.display_row;
3107 let row_index = (display_row.0.saturating_sub(range.start.0)) as usize;
3108
3109 // Don't show on rows with expand excerpt buttons
3110 let row_info = row_infos.get(row_index);
3111 if row_info.is_some_and(|row_info| row_info.expand_info.is_some()) {
3112 return None;
3113 }
3114
3115 let buffer_row = row_info.and_then(|info| info.buffer_row);
3116 Some((display_row, buffer_row))
3117 }
3118
3119 fn diff_review_button(width: Pixels, cx: &mut App) -> AnyElement {
3120 let text_c = cx.theme().colors().text;
3121 let icon_c = cx.theme().colors().icon_accent;
3122
3123 h_flex()
3124 .id("diff_review_button")
3125 .cursor_pointer()
3126 .w(width - px(1.))
3127 .h(relative(0.9))
3128 .justify_center()
3129 .rounded_sm()
3130 .border_1()
3131 .border_color(text_c.opacity(0.1))
3132 .bg(text_c.opacity(0.15))
3133 .hover(|s| s.bg(icon_c.opacity(0.4)).border_color(icon_c.opacity(0.5)))
3134 .child(Icon::new(IconName::Plus).size(IconSize::Small))
3135 .tooltip(Tooltip::text("Add Review"))
3136 .into_any_element()
3137 }
3138
3139 #[allow(clippy::too_many_arguments)]
3140 fn layout_run_indicators(
3141 &self,
3142 line_height: Pixels,
3143 range: Range<DisplayRow>,
3144 row_infos: &[RowInfo],
3145 scroll_position: gpui::Point<ScrollOffset>,
3146 gutter_dimensions: &GutterDimensions,
3147 gutter_hitbox: &Hitbox,
3148 snapshot: &EditorSnapshot,
3149 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
3150 window: &mut Window,
3151 cx: &mut App,
3152 ) -> Vec<AnyElement> {
3153 self.editor.update(cx, |editor, cx| {
3154 let active_task_indicator_row =
3155 // TODO: add edit button on the right side of each row in the context menu
3156 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
3157 deployed_from,
3158 actions,
3159 ..
3160 })) = editor.context_menu.borrow().as_ref()
3161 {
3162 actions
3163 .tasks()
3164 .map(|tasks| tasks.position.to_display_point(snapshot).row())
3165 .or_else(|| match deployed_from {
3166 Some(CodeActionSource::Indicator(row)) => Some(*row),
3167 _ => None,
3168 })
3169 } else {
3170 None
3171 };
3172
3173 let offset_range_start =
3174 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
3175
3176 let offset_range_end =
3177 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
3178
3179 editor
3180 .tasks
3181 .iter()
3182 .filter_map(|(_, tasks)| {
3183 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot());
3184 if multibuffer_point < offset_range_start
3185 || multibuffer_point > offset_range_end
3186 {
3187 return None;
3188 }
3189 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
3190 let buffer_folded = snapshot
3191 .buffer_snapshot()
3192 .buffer_line_for_row(multibuffer_row)
3193 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
3194 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
3195 .unwrap_or(false);
3196 if buffer_folded {
3197 return None;
3198 }
3199
3200 if snapshot.is_line_folded(multibuffer_row) {
3201 // Skip folded indicators, unless it's the starting line of a fold.
3202 if multibuffer_row
3203 .0
3204 .checked_sub(1)
3205 .is_some_and(|previous_row| {
3206 snapshot.is_line_folded(MultiBufferRow(previous_row))
3207 })
3208 {
3209 return None;
3210 }
3211 }
3212
3213 let display_row = multibuffer_point.to_display_point(snapshot).row();
3214 if !range.contains(&display_row) {
3215 return None;
3216 }
3217 if row_infos
3218 .get((display_row - range.start).0 as usize)
3219 .is_some_and(|row_info| row_info.expand_info.is_some())
3220 {
3221 return None;
3222 }
3223
3224 let removed_breakpoint = breakpoints.remove(&display_row);
3225 let button = editor.render_run_indicator(
3226 &self.style,
3227 Some(display_row) == active_task_indicator_row,
3228 display_row,
3229 removed_breakpoint,
3230 cx,
3231 );
3232
3233 let button = prepaint_gutter_button(
3234 button.into_any_element(),
3235 display_row,
3236 line_height,
3237 gutter_dimensions,
3238 scroll_position,
3239 gutter_hitbox,
3240 window,
3241 cx,
3242 );
3243 Some(button)
3244 })
3245 .collect_vec()
3246 })
3247 }
3248
3249 fn layout_expand_toggles(
3250 &self,
3251 gutter_hitbox: &Hitbox,
3252 gutter_dimensions: GutterDimensions,
3253 em_width: Pixels,
3254 line_height: Pixels,
3255 scroll_position: gpui::Point<ScrollOffset>,
3256 buffer_rows: &[RowInfo],
3257 window: &mut Window,
3258 cx: &mut App,
3259 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
3260 if self.editor.read(cx).disable_expand_excerpt_buttons {
3261 return vec![];
3262 }
3263
3264 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
3265
3266 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
3267
3268 let max_line_number_length = self
3269 .editor
3270 .read(cx)
3271 .buffer()
3272 .read(cx)
3273 .snapshot(cx)
3274 .widest_line_number()
3275 .ilog10()
3276 + 1;
3277
3278 let git_gutter_width = Self::gutter_strip_width(line_height)
3279 + gutter_dimensions
3280 .git_blame_entries_width
3281 .unwrap_or_default();
3282 let available_width = gutter_dimensions.left_padding - git_gutter_width;
3283
3284 buffer_rows
3285 .iter()
3286 .enumerate()
3287 .map(|(ix, row_info)| {
3288 let ExpandInfo {
3289 excerpt_id,
3290 direction,
3291 } = row_info.expand_info?;
3292
3293 let icon_name = match direction {
3294 ExpandExcerptDirection::Up => IconName::ExpandUp,
3295 ExpandExcerptDirection::Down => IconName::ExpandDown,
3296 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
3297 };
3298
3299 let editor = self.editor.clone();
3300 let is_wide = max_line_number_length
3301 >= EditorSettings::get_global(cx).gutter.min_line_number_digits as u32
3302 && row_info
3303 .buffer_row
3304 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
3305 || gutter_dimensions.right_padding == px(0.);
3306
3307 let width = if is_wide {
3308 available_width - px(5.)
3309 } else {
3310 available_width + em_width - px(5.)
3311 };
3312
3313 let toggle = IconButton::new(("expand", ix), icon_name)
3314 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
3315 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
3316 .width(width)
3317 .on_click(move |_, window, cx| {
3318 editor.update(cx, |editor, cx| {
3319 editor.expand_excerpt(excerpt_id, direction, window, cx);
3320 });
3321 })
3322 .tooltip(Tooltip::for_action_title(
3323 "Expand Excerpt",
3324 &crate::actions::ExpandExcerpts::default(),
3325 ))
3326 .into_any_element();
3327
3328 let position = point(
3329 git_gutter_width + px(1.),
3330 ix as f32 * line_height
3331 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height))
3332 + px(1.),
3333 );
3334 let origin = gutter_hitbox.origin + position;
3335
3336 Some((toggle, origin))
3337 })
3338 .collect()
3339 }
3340
3341 fn layout_line_numbers(
3342 &self,
3343 gutter_hitbox: Option<&Hitbox>,
3344 gutter_dimensions: GutterDimensions,
3345 line_height: Pixels,
3346 scroll_position: gpui::Point<ScrollOffset>,
3347 rows: Range<DisplayRow>,
3348 buffer_rows: &[RowInfo],
3349 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3350 current_selection_head: Option<DisplayRow>,
3351 snapshot: &EditorSnapshot,
3352 window: &mut Window,
3353 cx: &mut App,
3354 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
3355 let include_line_numbers = snapshot
3356 .show_line_numbers
3357 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
3358 if !include_line_numbers {
3359 return Arc::default();
3360 }
3361
3362 let relative = self.editor.read(cx).relative_line_numbers(cx);
3363
3364 let relative_line_numbers_enabled = relative.enabled();
3365 let relative_rows = if relative_line_numbers_enabled
3366 && let Some(current_selection_head) = current_selection_head
3367 {
3368 snapshot.calculate_relative_line_numbers(
3369 &rows,
3370 current_selection_head,
3371 relative.wrapped(),
3372 )
3373 } else {
3374 Default::default()
3375 };
3376
3377 let mut line_number = String::new();
3378 let segments = buffer_rows.iter().enumerate().flat_map(|(ix, row_info)| {
3379 let display_row = DisplayRow(rows.start.0 + ix as u32);
3380 line_number.clear();
3381 let non_relative_number = if relative.wrapped() {
3382 row_info.buffer_row.or(row_info.wrapped_buffer_row)? + 1
3383 } else {
3384 row_info.buffer_row? + 1
3385 };
3386 let relative_number = relative_rows.get(&display_row);
3387 if !(relative_line_numbers_enabled && relative_number.is_some())
3388 && !snapshot.number_deleted_lines
3389 && row_info
3390 .diff_status
3391 .is_some_and(|status| status.is_deleted())
3392 {
3393 return None;
3394 }
3395
3396 let number = relative_number.unwrap_or(&non_relative_number);
3397 write!(&mut line_number, "{number}").unwrap();
3398
3399 let color = active_rows
3400 .get(&display_row)
3401 .map(|spec| {
3402 if spec.breakpoint {
3403 cx.theme().colors().debugger_accent
3404 } else {
3405 cx.theme().colors().editor_active_line_number
3406 }
3407 })
3408 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
3409 let shaped_line =
3410 self.shape_line_number(SharedString::from(&line_number), color, window);
3411 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
3412 let line_origin = gutter_hitbox.map(|hitbox| {
3413 hitbox.origin
3414 + point(
3415 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
3416 ix as f32 * line_height
3417 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height)),
3418 )
3419 });
3420
3421 #[cfg(not(test))]
3422 let hitbox = line_origin.map(|line_origin| {
3423 window.insert_hitbox(
3424 Bounds::new(line_origin, size(shaped_line.width, line_height)),
3425 HitboxBehavior::Normal,
3426 )
3427 });
3428 #[cfg(test)]
3429 let hitbox = {
3430 let _ = line_origin;
3431 None
3432 };
3433
3434 let segment = LineNumberSegment {
3435 shaped_line,
3436 hitbox,
3437 };
3438
3439 let buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
3440 let multi_buffer_row = MultiBufferRow(buffer_row);
3441
3442 Some((multi_buffer_row, segment))
3443 });
3444
3445 let mut line_numbers: HashMap<MultiBufferRow, LineNumberLayout> = HashMap::default();
3446 for (buffer_row, segment) in segments {
3447 line_numbers
3448 .entry(buffer_row)
3449 .or_insert_with(|| LineNumberLayout {
3450 segments: Default::default(),
3451 })
3452 .segments
3453 .push(segment);
3454 }
3455 Arc::new(line_numbers)
3456 }
3457
3458 fn layout_crease_toggles(
3459 &self,
3460 rows: Range<DisplayRow>,
3461 row_infos: &[RowInfo],
3462 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3463 snapshot: &EditorSnapshot,
3464 window: &mut Window,
3465 cx: &mut App,
3466 ) -> Vec<Option<AnyElement>> {
3467 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
3468 && snapshot.mode.is_full()
3469 && self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
3470 if include_fold_statuses {
3471 row_infos
3472 .iter()
3473 .enumerate()
3474 .map(|(ix, info)| {
3475 if info.expand_info.is_some() {
3476 return None;
3477 }
3478 let row = info.multibuffer_row?;
3479 let display_row = DisplayRow(rows.start.0 + ix as u32);
3480 let active = active_rows.contains_key(&display_row);
3481
3482 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
3483 })
3484 .collect()
3485 } else {
3486 Vec::new()
3487 }
3488 }
3489
3490 fn layout_crease_trailers(
3491 &self,
3492 buffer_rows: impl IntoIterator<Item = RowInfo>,
3493 snapshot: &EditorSnapshot,
3494 window: &mut Window,
3495 cx: &mut App,
3496 ) -> Vec<Option<AnyElement>> {
3497 buffer_rows
3498 .into_iter()
3499 .map(|row_info| {
3500 if row_info.expand_info.is_some() {
3501 return None;
3502 }
3503 if let Some(row) = row_info.multibuffer_row {
3504 snapshot.render_crease_trailer(row, window, cx)
3505 } else {
3506 None
3507 }
3508 })
3509 .collect()
3510 }
3511
3512 fn bg_segments_per_row(
3513 rows: Range<DisplayRow>,
3514 selections: &[(PlayerColor, Vec<SelectionLayout>)],
3515 highlight_ranges: &[(Range<DisplayPoint>, Hsla)],
3516 base_background: Hsla,
3517 ) -> Vec<Vec<(Range<DisplayPoint>, Hsla)>> {
3518 if rows.start >= rows.end {
3519 return Vec::new();
3520 }
3521 if !base_background.is_opaque() {
3522 // We don't actually know what color is behind this editor.
3523 return Vec::new();
3524 }
3525 let highlight_iter = highlight_ranges.iter().cloned();
3526 let selection_iter = selections.iter().flat_map(|(player_color, layouts)| {
3527 let color = player_color.selection;
3528 layouts.iter().filter_map(move |selection_layout| {
3529 if selection_layout.range.start != selection_layout.range.end {
3530 Some((selection_layout.range.clone(), color))
3531 } else {
3532 None
3533 }
3534 })
3535 });
3536 let mut per_row_map = vec![Vec::new(); rows.len()];
3537 for (range, color) in highlight_iter.chain(selection_iter) {
3538 let covered_rows = if range.end.column() == 0 {
3539 cmp::max(range.start.row(), rows.start)..cmp::min(range.end.row(), rows.end)
3540 } else {
3541 cmp::max(range.start.row(), rows.start)
3542 ..cmp::min(range.end.row().next_row(), rows.end)
3543 };
3544 for row in covered_rows.iter_rows() {
3545 let seg_start = if row == range.start.row() {
3546 range.start
3547 } else {
3548 DisplayPoint::new(row, 0)
3549 };
3550 let seg_end = if row == range.end.row() && range.end.column() != 0 {
3551 range.end
3552 } else {
3553 DisplayPoint::new(row, u32::MAX)
3554 };
3555 let ix = row.minus(rows.start) as usize;
3556 debug_assert!(row >= rows.start && row < rows.end);
3557 debug_assert!(ix < per_row_map.len());
3558 per_row_map[ix].push((seg_start..seg_end, color));
3559 }
3560 }
3561 for row_segments in per_row_map.iter_mut() {
3562 if row_segments.is_empty() {
3563 continue;
3564 }
3565 let segments = mem::take(row_segments);
3566 let merged = Self::merge_overlapping_ranges(segments, base_background);
3567 *row_segments = merged;
3568 }
3569 per_row_map
3570 }
3571
3572 /// Merge overlapping ranges by splitting at all range boundaries and blending colors where
3573 /// multiple ranges overlap. The result contains non-overlapping ranges ordered from left to right.
3574 ///
3575 /// Expects `start.row() == end.row()` for each range.
3576 fn merge_overlapping_ranges(
3577 ranges: Vec<(Range<DisplayPoint>, Hsla)>,
3578 base_background: Hsla,
3579 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
3580 struct Boundary {
3581 pos: DisplayPoint,
3582 is_start: bool,
3583 index: usize,
3584 color: Hsla,
3585 }
3586
3587 let mut boundaries: SmallVec<[Boundary; 16]> = SmallVec::with_capacity(ranges.len() * 2);
3588 for (index, (range, color)) in ranges.iter().enumerate() {
3589 debug_assert!(
3590 range.start.row() == range.end.row(),
3591 "expects single-row ranges"
3592 );
3593 if range.start < range.end {
3594 boundaries.push(Boundary {
3595 pos: range.start,
3596 is_start: true,
3597 index,
3598 color: *color,
3599 });
3600 boundaries.push(Boundary {
3601 pos: range.end,
3602 is_start: false,
3603 index,
3604 color: *color,
3605 });
3606 }
3607 }
3608
3609 if boundaries.is_empty() {
3610 return Vec::new();
3611 }
3612
3613 boundaries
3614 .sort_unstable_by(|a, b| a.pos.cmp(&b.pos).then_with(|| a.is_start.cmp(&b.is_start)));
3615
3616 let mut processed_ranges: Vec<(Range<DisplayPoint>, Hsla)> = Vec::new();
3617 let mut active_ranges: SmallVec<[(usize, Hsla); 8]> = SmallVec::new();
3618
3619 let mut i = 0;
3620 let mut start_pos = boundaries[0].pos;
3621
3622 let boundaries_len = boundaries.len();
3623 while i < boundaries_len {
3624 let current_boundary_pos = boundaries[i].pos;
3625 if start_pos < current_boundary_pos {
3626 if !active_ranges.is_empty() {
3627 let mut color = base_background;
3628 for &(_, c) in &active_ranges {
3629 color = Hsla::blend(color, c);
3630 }
3631 if let Some((last_range, last_color)) = processed_ranges.last_mut() {
3632 if *last_color == color && last_range.end == start_pos {
3633 last_range.end = current_boundary_pos;
3634 } else {
3635 processed_ranges.push((start_pos..current_boundary_pos, color));
3636 }
3637 } else {
3638 processed_ranges.push((start_pos..current_boundary_pos, color));
3639 }
3640 }
3641 }
3642 while i < boundaries_len && boundaries[i].pos == current_boundary_pos {
3643 let active_range = &boundaries[i];
3644 if active_range.is_start {
3645 let idx = active_range.index;
3646 let pos = active_ranges
3647 .binary_search_by_key(&idx, |(i, _)| *i)
3648 .unwrap_or_else(|p| p);
3649 active_ranges.insert(pos, (idx, active_range.color));
3650 } else {
3651 let idx = active_range.index;
3652 if let Ok(pos) = active_ranges.binary_search_by_key(&idx, |(i, _)| *i) {
3653 active_ranges.remove(pos);
3654 }
3655 }
3656 i += 1;
3657 }
3658 start_pos = current_boundary_pos;
3659 }
3660
3661 processed_ranges
3662 }
3663
3664 fn layout_lines(
3665 rows: Range<DisplayRow>,
3666 snapshot: &EditorSnapshot,
3667 style: &EditorStyle,
3668 editor_width: Pixels,
3669 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3670 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
3671 window: &mut Window,
3672 cx: &mut App,
3673 ) -> Vec<LineWithInvisibles> {
3674 if rows.start >= rows.end {
3675 return Vec::new();
3676 }
3677
3678 // Show the placeholder when the editor is empty
3679 if snapshot.is_empty() {
3680 let font_size = style.text.font_size.to_pixels(window.rem_size());
3681 let placeholder_color = cx.theme().colors().text_placeholder;
3682 let placeholder_text = snapshot.placeholder_text();
3683
3684 let placeholder_lines = placeholder_text
3685 .as_ref()
3686 .map_or(Vec::new(), |text| text.split('\n').collect::<Vec<_>>());
3687
3688 let placeholder_line_count = placeholder_lines.len();
3689
3690 placeholder_lines
3691 .into_iter()
3692 .skip(rows.start.0 as usize)
3693 .chain(iter::repeat(""))
3694 .take(cmp::max(rows.len(), placeholder_line_count))
3695 .map(move |line| {
3696 let run = TextRun {
3697 len: line.len(),
3698 font: style.text.font(),
3699 color: placeholder_color,
3700 ..Default::default()
3701 };
3702 let line = window.text_system().shape_line(
3703 line.to_string().into(),
3704 font_size,
3705 &[run],
3706 None,
3707 );
3708 LineWithInvisibles {
3709 width: line.width,
3710 len: line.len,
3711 fragments: smallvec![LineFragment::Text(line)],
3712 invisibles: Vec::new(),
3713 font_size,
3714 }
3715 })
3716 .collect()
3717 } else {
3718 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
3719 LineWithInvisibles::from_chunks(
3720 chunks,
3721 style,
3722 MAX_LINE_LEN,
3723 rows.len(),
3724 &snapshot.mode,
3725 editor_width,
3726 is_row_soft_wrapped,
3727 bg_segments_per_row,
3728 window,
3729 cx,
3730 )
3731 }
3732 }
3733
3734 fn prepaint_lines(
3735 &self,
3736 start_row: DisplayRow,
3737 line_layouts: &mut [LineWithInvisibles],
3738 line_height: Pixels,
3739 scroll_position: gpui::Point<ScrollOffset>,
3740 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
3741 content_origin: gpui::Point<Pixels>,
3742 window: &mut Window,
3743 cx: &mut App,
3744 ) -> SmallVec<[AnyElement; 1]> {
3745 let mut line_elements = SmallVec::new();
3746 for (ix, line) in line_layouts.iter_mut().enumerate() {
3747 let row = start_row + DisplayRow(ix as u32);
3748 line.prepaint(
3749 line_height,
3750 scroll_position,
3751 scroll_pixel_position,
3752 row,
3753 content_origin,
3754 &mut line_elements,
3755 window,
3756 cx,
3757 );
3758 }
3759 line_elements
3760 }
3761
3762 fn render_block(
3763 &self,
3764 block: &Block,
3765 available_width: AvailableSpace,
3766 block_id: BlockId,
3767 block_row_start: DisplayRow,
3768 snapshot: &EditorSnapshot,
3769 text_x: Pixels,
3770 rows: &Range<DisplayRow>,
3771 line_layouts: &[LineWithInvisibles],
3772 editor_margins: &EditorMargins,
3773 line_height: Pixels,
3774 em_width: Pixels,
3775 text_hitbox: &Hitbox,
3776 editor_width: Pixels,
3777 scroll_width: &mut Pixels,
3778 resized_blocks: &mut HashMap<CustomBlockId, u32>,
3779 row_block_types: &mut HashMap<DisplayRow, bool>,
3780 selections: &[Selection<Point>],
3781 selected_buffer_ids: &Vec<BufferId>,
3782 latest_selection_anchors: &HashMap<BufferId, Anchor>,
3783 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3784 sticky_header_excerpt_id: Option<ExcerptId>,
3785 block_resize_offset: &mut i32,
3786 window: &mut Window,
3787 cx: &mut App,
3788 ) -> Option<(AnyElement, Size<Pixels>, DisplayRow, Pixels)> {
3789 let mut x_position = None;
3790 let mut element = match block {
3791 Block::Custom(custom) => {
3792 let block_start = custom.start().to_point(&snapshot.buffer_snapshot());
3793 let block_end = custom.end().to_point(&snapshot.buffer_snapshot());
3794 if block.place_near() && snapshot.is_line_folded(MultiBufferRow(block_start.row)) {
3795 return None;
3796 }
3797 let align_to = block_start.to_display_point(snapshot);
3798 let x_and_width = |layout: &LineWithInvisibles| {
3799 Some((
3800 text_x + layout.x_for_index(align_to.column() as usize),
3801 text_x + layout.width,
3802 ))
3803 };
3804 let line_ix = align_to.row().0.checked_sub(rows.start.0);
3805 x_position =
3806 if let Some(layout) = line_ix.and_then(|ix| line_layouts.get(ix as usize)) {
3807 x_and_width(layout)
3808 } else {
3809 x_and_width(&layout_line(
3810 align_to.row(),
3811 snapshot,
3812 &self.style,
3813 editor_width,
3814 is_row_soft_wrapped,
3815 window,
3816 cx,
3817 ))
3818 };
3819
3820 let anchor_x = x_position.unwrap().0;
3821
3822 let selected = selections
3823 .binary_search_by(|selection| {
3824 if selection.end <= block_start {
3825 Ordering::Less
3826 } else if selection.start >= block_end {
3827 Ordering::Greater
3828 } else {
3829 Ordering::Equal
3830 }
3831 })
3832 .is_ok();
3833
3834 div()
3835 .size_full()
3836 .child(custom.render(&mut BlockContext {
3837 window,
3838 app: cx,
3839 anchor_x,
3840 margins: editor_margins,
3841 line_height,
3842 em_width,
3843 block_id,
3844 selected,
3845 max_width: text_hitbox.size.width.max(*scroll_width),
3846 editor_style: &self.style,
3847 }))
3848 .into_any()
3849 }
3850
3851 Block::FoldedBuffer {
3852 first_excerpt,
3853 height,
3854 ..
3855 } => {
3856 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
3857 let result = v_flex().id(block_id).w_full().pr(editor_margins.right);
3858
3859 let jump_data = header_jump_data(
3860 snapshot,
3861 block_row_start,
3862 *height,
3863 first_excerpt,
3864 latest_selection_anchors,
3865 );
3866 result
3867 .child(self.render_buffer_header(
3868 first_excerpt,
3869 true,
3870 selected,
3871 false,
3872 jump_data,
3873 window,
3874 cx,
3875 ))
3876 .into_any_element()
3877 }
3878
3879 Block::ExcerptBoundary { .. } => {
3880 let color = cx.theme().colors().clone();
3881 let mut result = v_flex().id(block_id).w_full();
3882
3883 result = result.child(
3884 h_flex().relative().child(
3885 div()
3886 .top(line_height / 2.)
3887 .absolute()
3888 .w_full()
3889 .h_px()
3890 .bg(color.border_variant),
3891 ),
3892 );
3893
3894 result.into_any()
3895 }
3896
3897 Block::BufferHeader { excerpt, height } => {
3898 let mut result = v_flex().id(block_id).w_full();
3899
3900 let jump_data = header_jump_data(
3901 snapshot,
3902 block_row_start,
3903 *height,
3904 excerpt,
3905 latest_selection_anchors,
3906 );
3907
3908 if sticky_header_excerpt_id != Some(excerpt.id) {
3909 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3910
3911 result = result.child(div().pr(editor_margins.right).child(
3912 self.render_buffer_header(
3913 excerpt, false, selected, false, jump_data, window, cx,
3914 ),
3915 ));
3916 } else {
3917 result =
3918 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
3919 }
3920
3921 result.into_any()
3922 }
3923 };
3924
3925 // Discover the element's content height, then round up to the nearest multiple of line height.
3926 let preliminary_size = element.layout_as_root(
3927 size(available_width, AvailableSpace::MinContent),
3928 window,
3929 cx,
3930 );
3931 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
3932 let final_size = if preliminary_size.height == quantized_height {
3933 preliminary_size
3934 } else {
3935 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
3936 };
3937 let mut element_height_in_lines = ((final_size.height / line_height).ceil() as u32).max(1);
3938
3939 let effective_row_start = block_row_start.0 as i32 + *block_resize_offset;
3940 debug_assert!(effective_row_start >= 0);
3941 let mut row = DisplayRow(effective_row_start.max(0) as u32);
3942
3943 let mut x_offset = px(0.);
3944 let mut is_block = true;
3945
3946 if let BlockId::Custom(custom_block_id) = block_id
3947 && block.has_height()
3948 {
3949 if block.place_near()
3950 && let Some((x_target, line_width)) = x_position
3951 {
3952 let margin = em_width * 2;
3953 if line_width + final_size.width + margin
3954 < editor_width + editor_margins.gutter.full_width()
3955 && !row_block_types.contains_key(&(row - 1))
3956 && element_height_in_lines == 1
3957 {
3958 x_offset = line_width + margin;
3959 row = row - 1;
3960 is_block = false;
3961 element_height_in_lines = 0;
3962 row_block_types.insert(row, is_block);
3963 } else {
3964 let max_offset =
3965 editor_width + editor_margins.gutter.full_width() - final_size.width;
3966 let min_offset = (x_target + em_width - final_size.width)
3967 .max(editor_margins.gutter.full_width());
3968 x_offset = x_target.min(max_offset).max(min_offset);
3969 }
3970 };
3971 if element_height_in_lines != block.height() {
3972 *block_resize_offset += element_height_in_lines as i32 - block.height() as i32;
3973 resized_blocks.insert(custom_block_id, element_height_in_lines);
3974 }
3975 }
3976 for i in 0..element_height_in_lines {
3977 row_block_types.insert(row + i, is_block);
3978 }
3979
3980 Some((element, final_size, row, x_offset))
3981 }
3982
3983 fn render_buffer_header(
3984 &self,
3985 for_excerpt: &ExcerptInfo,
3986 is_folded: bool,
3987 is_selected: bool,
3988 is_sticky: bool,
3989 jump_data: JumpData,
3990 window: &mut Window,
3991 cx: &mut App,
3992 ) -> impl IntoElement {
3993 let editor = self.editor.read(cx);
3994 let multi_buffer = editor.buffer.read(cx);
3995 let is_read_only = self.editor.read(cx).read_only(cx);
3996 let editor_handle: &dyn ItemHandle = &self.editor;
3997
3998 let breadcrumbs = if is_selected {
3999 editor.breadcrumbs_inner(cx.theme(), cx)
4000 } else {
4001 None
4002 };
4003
4004 let file_status = multi_buffer
4005 .all_diff_hunks_expanded()
4006 .then(|| editor.status_for_buffer_id(for_excerpt.buffer_id, cx))
4007 .flatten();
4008 let indicator = multi_buffer
4009 .buffer(for_excerpt.buffer_id)
4010 .and_then(|buffer| {
4011 let buffer = buffer.read(cx);
4012 let indicator_color = match (buffer.has_conflict(), buffer.is_dirty()) {
4013 (true, _) => Some(Color::Warning),
4014 (_, true) => Some(Color::Accent),
4015 (false, false) => None,
4016 };
4017 indicator_color.map(|indicator_color| Indicator::dot().color(indicator_color))
4018 });
4019
4020 let include_root = editor
4021 .project
4022 .as_ref()
4023 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
4024 .unwrap_or_default();
4025 let file = for_excerpt.buffer.file();
4026 let can_open_excerpts = file.is_none_or(|file| file.can_open());
4027 let path_style = file.map(|file| file.path_style(cx));
4028 let relative_path = for_excerpt.buffer.resolve_file_path(include_root, cx);
4029 let (parent_path, filename) = if let Some(path) = &relative_path {
4030 if let Some(path_style) = path_style {
4031 let (dir, file_name) = path_style.split(path);
4032 (dir.map(|dir| dir.to_owned()), Some(file_name.to_owned()))
4033 } else {
4034 (None, Some(path.clone()))
4035 }
4036 } else {
4037 (None, None)
4038 };
4039 let focus_handle = editor.focus_handle(cx);
4040 let colors = cx.theme().colors();
4041
4042 let header = div()
4043 .p_1()
4044 .w_full()
4045 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
4046 .child(
4047 h_flex()
4048 .size_full()
4049 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
4050 .pl_1()
4051 .pr_2()
4052 .rounded_sm()
4053 .gap_1p5()
4054 .when(is_sticky, |el| el.shadow_md())
4055 .border_1()
4056 .map(|border| {
4057 let border_color = if is_selected
4058 && is_folded
4059 && focus_handle.contains_focused(window, cx)
4060 {
4061 colors.border_focused
4062 } else {
4063 colors.border
4064 };
4065 border.border_color(border_color)
4066 })
4067 .bg(colors.editor_subheader_background)
4068 .hover(|style| style.bg(colors.element_hover))
4069 .map(|header| {
4070 let editor = self.editor.clone();
4071 let buffer_id = for_excerpt.buffer_id;
4072 let toggle_chevron_icon =
4073 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
4074 let button_size = rems_from_px(28.);
4075
4076 header.child(
4077 div()
4078 .hover(|style| style.bg(colors.element_selected))
4079 .rounded_xs()
4080 .child(
4081 ButtonLike::new("toggle-buffer-fold")
4082 .style(ButtonStyle::Transparent)
4083 .height(button_size.into())
4084 .width(button_size)
4085 .children(toggle_chevron_icon)
4086 .tooltip({
4087 let focus_handle = focus_handle.clone();
4088 let is_folded_for_tooltip = is_folded;
4089 move |_window, cx| {
4090 Tooltip::with_meta_in(
4091 if is_folded_for_tooltip {
4092 "Unfold Excerpt"
4093 } else {
4094 "Fold Excerpt"
4095 },
4096 Some(&ToggleFold),
4097 format!(
4098 "{} to toggle all",
4099 text_for_keystroke(
4100 &Modifiers::alt(),
4101 "click",
4102 cx
4103 )
4104 ),
4105 &focus_handle,
4106 cx,
4107 )
4108 }
4109 })
4110 .on_click(move |event, window, cx| {
4111 if event.modifiers().alt {
4112 // Alt+click toggles all buffers
4113 editor.update(cx, |editor, cx| {
4114 editor.toggle_fold_all(
4115 &ToggleFoldAll,
4116 window,
4117 cx,
4118 );
4119 });
4120 } else {
4121 // Regular click toggles single buffer
4122 if is_folded {
4123 editor.update(cx, |editor, cx| {
4124 editor.unfold_buffer(buffer_id, cx);
4125 });
4126 } else {
4127 editor.update(cx, |editor, cx| {
4128 editor.fold_buffer(buffer_id, cx);
4129 });
4130 }
4131 }
4132 }),
4133 ),
4134 )
4135 })
4136 .children(
4137 editor
4138 .addons
4139 .values()
4140 .filter_map(|addon| {
4141 addon.render_buffer_header_controls(for_excerpt, window, cx)
4142 })
4143 .take(1),
4144 )
4145 .when(!is_read_only, |this| {
4146 this.child(
4147 h_flex()
4148 .size_3()
4149 .justify_center()
4150 .flex_shrink_0()
4151 .children(indicator),
4152 )
4153 })
4154 .child(
4155 h_flex()
4156 .cursor_pointer()
4157 .id("path_header_block")
4158 .min_w_0()
4159 .size_full()
4160 .gap_1()
4161 .justify_between()
4162 .overflow_hidden()
4163 .child(h_flex().min_w_0().flex_1().gap_0p5().overflow_hidden().map(
4164 |path_header| {
4165 let filename = filename
4166 .map(SharedString::from)
4167 .unwrap_or_else(|| "untitled".into());
4168
4169 let full_path = match parent_path.as_deref() {
4170 Some(parent) if !parent.is_empty() => {
4171 format!("{}{}", parent, filename.as_str())
4172 }
4173 _ => filename.as_str().to_string(),
4174 };
4175
4176 path_header
4177 .child(
4178 ButtonLike::new("filename-button")
4179 .when(
4180 ItemSettings::get_global(cx).file_icons,
4181 |this| {
4182 let path =
4183 path::Path::new(filename.as_str());
4184 let icon = FileIcons::get_icon(path, cx)
4185 .unwrap_or_default();
4186
4187 this.child(
4188 Icon::from_path(icon)
4189 .color(Color::Muted),
4190 )
4191 },
4192 )
4193 .child(
4194 Label::new(filename)
4195 .single_line()
4196 .color(file_status_label_color(file_status))
4197 .buffer_font(cx)
4198 .when(
4199 file_status
4200 .is_some_and(|s| s.is_deleted()),
4201 |label| label.strikethrough(),
4202 ),
4203 )
4204 .tooltip(move |_, cx| {
4205 Tooltip::with_meta(
4206 "Open File",
4207 None,
4208 full_path.clone(),
4209 cx,
4210 )
4211 })
4212 .on_click(window.listener_for(&self.editor, {
4213 let jump_data = jump_data.clone();
4214 move |editor, e: &ClickEvent, window, cx| {
4215 editor.open_excerpts_common(
4216 Some(jump_data.clone()),
4217 e.modifiers().secondary(),
4218 window,
4219 cx,
4220 );
4221 }
4222 })),
4223 )
4224 .when_some(parent_path, |then, path| {
4225 then.child(
4226 Label::new(path)
4227 .buffer_font(cx)
4228 .truncate_start()
4229 .color(
4230 if file_status
4231 .is_some_and(FileStatus::is_deleted)
4232 {
4233 Color::Custom(colors.text_disabled)
4234 } else {
4235 Color::Custom(colors.text_muted)
4236 },
4237 ),
4238 )
4239 })
4240 .when(!for_excerpt.buffer.capability.editable(), |el| {
4241 el.child(
4242 Icon::new(IconName::FileLock).color(Color::Muted),
4243 )
4244 })
4245 .when_some(breadcrumbs, |then, breadcrumbs| {
4246 then.child(render_breadcrumb_text(
4247 breadcrumbs,
4248 None,
4249 editor_handle,
4250 true,
4251 window,
4252 cx,
4253 ))
4254 })
4255 },
4256 ))
4257 .when(
4258 can_open_excerpts && is_selected && relative_path.is_some(),
4259 |el| {
4260 el.child(
4261 Button::new("open-file-button", "Open File")
4262 .style(ButtonStyle::OutlinedGhost)
4263 .key_binding(KeyBinding::for_action_in(
4264 &OpenExcerpts,
4265 &focus_handle,
4266 cx,
4267 ))
4268 .on_click(window.listener_for(&self.editor, {
4269 let jump_data = jump_data.clone();
4270 move |editor, e: &ClickEvent, window, cx| {
4271 editor.open_excerpts_common(
4272 Some(jump_data.clone()),
4273 e.modifiers().secondary(),
4274 window,
4275 cx,
4276 );
4277 }
4278 })),
4279 )
4280 },
4281 )
4282 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
4283 .on_click(window.listener_for(&self.editor, {
4284 let buffer_id = for_excerpt.buffer_id;
4285 move |editor, e: &ClickEvent, window, cx| {
4286 if e.modifiers().alt {
4287 editor.open_excerpts_common(
4288 Some(jump_data.clone()),
4289 e.modifiers().secondary(),
4290 window,
4291 cx,
4292 );
4293 return;
4294 }
4295
4296 if is_folded {
4297 editor.unfold_buffer(buffer_id, cx);
4298 } else {
4299 editor.fold_buffer(buffer_id, cx);
4300 }
4301 }
4302 })),
4303 ),
4304 );
4305
4306 let file = for_excerpt.buffer.file().cloned();
4307 let editor = self.editor.clone();
4308
4309 right_click_menu("buffer-header-context-menu")
4310 .trigger(move |_, _, _| header)
4311 .menu(move |window, cx| {
4312 let menu_context = focus_handle.clone();
4313 let editor = editor.clone();
4314 let file = file.clone();
4315 ContextMenu::build(window, cx, move |mut menu, window, cx| {
4316 if let Some(file) = file
4317 && let Some(project) = editor.read(cx).project()
4318 && let Some(worktree) =
4319 project.read(cx).worktree_for_id(file.worktree_id(cx), cx)
4320 {
4321 let path_style = file.path_style(cx);
4322 let worktree = worktree.read(cx);
4323 let relative_path = file.path();
4324 let entry_for_path = worktree.entry_for_path(relative_path);
4325 let abs_path = entry_for_path.map(|e| {
4326 e.canonical_path.as_deref().map_or_else(
4327 || worktree.absolutize(relative_path),
4328 Path::to_path_buf,
4329 )
4330 });
4331 let has_relative_path = worktree.root_entry().is_some_and(Entry::is_dir);
4332
4333 let parent_abs_path = abs_path
4334 .as_ref()
4335 .and_then(|abs_path| Some(abs_path.parent()?.to_path_buf()));
4336 let relative_path = has_relative_path
4337 .then_some(relative_path)
4338 .map(ToOwned::to_owned);
4339
4340 let visible_in_project_panel =
4341 relative_path.is_some() && worktree.is_visible();
4342 let reveal_in_project_panel = entry_for_path
4343 .filter(|_| visible_in_project_panel)
4344 .map(|entry| entry.id);
4345 menu = menu
4346 .when_some(abs_path, |menu, abs_path| {
4347 menu.entry(
4348 "Copy Path",
4349 Some(Box::new(zed_actions::workspace::CopyPath)),
4350 window.handler_for(&editor, move |_, _, cx| {
4351 cx.write_to_clipboard(ClipboardItem::new_string(
4352 abs_path.to_string_lossy().into_owned(),
4353 ));
4354 }),
4355 )
4356 })
4357 .when_some(relative_path, |menu, relative_path| {
4358 menu.entry(
4359 "Copy Relative Path",
4360 Some(Box::new(zed_actions::workspace::CopyRelativePath)),
4361 window.handler_for(&editor, move |_, _, cx| {
4362 cx.write_to_clipboard(ClipboardItem::new_string(
4363 relative_path.display(path_style).to_string(),
4364 ));
4365 }),
4366 )
4367 })
4368 .when(
4369 reveal_in_project_panel.is_some() || parent_abs_path.is_some(),
4370 |menu| menu.separator(),
4371 )
4372 .when_some(reveal_in_project_panel, |menu, entry_id| {
4373 menu.entry(
4374 "Reveal In Project Panel",
4375 Some(Box::new(RevealInProjectPanel::default())),
4376 window.handler_for(&editor, move |editor, _, cx| {
4377 if let Some(project) = &mut editor.project {
4378 project.update(cx, |_, cx| {
4379 cx.emit(project::Event::RevealInProjectPanel(
4380 entry_id,
4381 ))
4382 });
4383 }
4384 }),
4385 )
4386 })
4387 .when_some(parent_abs_path, |menu, parent_abs_path| {
4388 menu.entry(
4389 "Open in Terminal",
4390 Some(Box::new(OpenInTerminal)),
4391 window.handler_for(&editor, move |_, window, cx| {
4392 window.dispatch_action(
4393 OpenTerminal {
4394 working_directory: parent_abs_path.clone(),
4395 local: false,
4396 }
4397 .boxed_clone(),
4398 cx,
4399 );
4400 }),
4401 )
4402 });
4403 }
4404
4405 menu.context(menu_context)
4406 })
4407 })
4408 }
4409
4410 fn render_blocks(
4411 &self,
4412 rows: Range<DisplayRow>,
4413 snapshot: &EditorSnapshot,
4414 hitbox: &Hitbox,
4415 text_hitbox: &Hitbox,
4416 editor_width: Pixels,
4417 scroll_width: &mut Pixels,
4418 editor_margins: &EditorMargins,
4419 em_width: Pixels,
4420 text_x: Pixels,
4421 line_height: Pixels,
4422 line_layouts: &mut [LineWithInvisibles],
4423 selections: &[Selection<Point>],
4424 selected_buffer_ids: &Vec<BufferId>,
4425 latest_selection_anchors: &HashMap<BufferId, Anchor>,
4426 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4427 sticky_header_excerpt_id: Option<ExcerptId>,
4428 window: &mut Window,
4429 cx: &mut App,
4430 ) -> RenderBlocksOutput {
4431 let (fixed_blocks, non_fixed_blocks) = snapshot
4432 .blocks_in_range(rows.clone())
4433 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
4434
4435 let mut focused_block = self
4436 .editor
4437 .update(cx, |editor, _| editor.take_focused_block());
4438 let mut fixed_block_max_width = Pixels::ZERO;
4439 let mut blocks = Vec::new();
4440 let mut resized_blocks = HashMap::default();
4441 let mut row_block_types = HashMap::default();
4442 let mut block_resize_offset: i32 = 0;
4443
4444 for (row, block) in fixed_blocks {
4445 let block_id = block.id();
4446
4447 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4448 focused_block = None;
4449 }
4450
4451 if let Some((element, element_size, row, x_offset)) = self.render_block(
4452 block,
4453 AvailableSpace::MinContent,
4454 block_id,
4455 row,
4456 snapshot,
4457 text_x,
4458 &rows,
4459 line_layouts,
4460 editor_margins,
4461 line_height,
4462 em_width,
4463 text_hitbox,
4464 editor_width,
4465 scroll_width,
4466 &mut resized_blocks,
4467 &mut row_block_types,
4468 selections,
4469 selected_buffer_ids,
4470 latest_selection_anchors,
4471 is_row_soft_wrapped,
4472 sticky_header_excerpt_id,
4473 &mut block_resize_offset,
4474 window,
4475 cx,
4476 ) {
4477 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
4478 blocks.push(BlockLayout {
4479 id: block_id,
4480 x_offset,
4481 row: Some(row),
4482 element,
4483 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
4484 style: BlockStyle::Fixed,
4485 overlaps_gutter: true,
4486 is_buffer_header: block.is_buffer_header(),
4487 });
4488 }
4489 }
4490
4491 for (row, block) in non_fixed_blocks {
4492 let style = block.style();
4493 let width = match (style, block.place_near()) {
4494 (_, true) => AvailableSpace::MinContent,
4495 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
4496 (BlockStyle::Flex, _) => hitbox
4497 .size
4498 .width
4499 .max(fixed_block_max_width)
4500 .max(editor_margins.gutter.width + *scroll_width)
4501 .into(),
4502 (BlockStyle::Fixed, _) => unreachable!(),
4503 };
4504 let block_id = block.id();
4505
4506 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4507 focused_block = None;
4508 }
4509
4510 if let Some((element, element_size, row, x_offset)) = self.render_block(
4511 block,
4512 width,
4513 block_id,
4514 row,
4515 snapshot,
4516 text_x,
4517 &rows,
4518 line_layouts,
4519 editor_margins,
4520 line_height,
4521 em_width,
4522 text_hitbox,
4523 editor_width,
4524 scroll_width,
4525 &mut resized_blocks,
4526 &mut row_block_types,
4527 selections,
4528 selected_buffer_ids,
4529 latest_selection_anchors,
4530 is_row_soft_wrapped,
4531 sticky_header_excerpt_id,
4532 &mut block_resize_offset,
4533 window,
4534 cx,
4535 ) {
4536 blocks.push(BlockLayout {
4537 id: block_id,
4538 x_offset,
4539 row: Some(row),
4540 element,
4541 available_space: size(width, element_size.height.into()),
4542 style,
4543 overlaps_gutter: !block.place_near(),
4544 is_buffer_header: block.is_buffer_header(),
4545 });
4546 }
4547 }
4548
4549 if let Some(focused_block) = focused_block
4550 && let Some(focus_handle) = focused_block.focus_handle.upgrade()
4551 && focus_handle.is_focused(window)
4552 && let Some(block) = snapshot.block_for_id(focused_block.id)
4553 {
4554 let style = block.style();
4555 let width = match style {
4556 BlockStyle::Fixed => AvailableSpace::MinContent,
4557 BlockStyle::Flex => AvailableSpace::Definite(
4558 hitbox
4559 .size
4560 .width
4561 .max(fixed_block_max_width)
4562 .max(editor_margins.gutter.width + *scroll_width),
4563 ),
4564 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
4565 };
4566
4567 if let Some((element, element_size, _, x_offset)) = self.render_block(
4568 &block,
4569 width,
4570 focused_block.id,
4571 rows.end,
4572 snapshot,
4573 text_x,
4574 &rows,
4575 line_layouts,
4576 editor_margins,
4577 line_height,
4578 em_width,
4579 text_hitbox,
4580 editor_width,
4581 scroll_width,
4582 &mut resized_blocks,
4583 &mut row_block_types,
4584 selections,
4585 selected_buffer_ids,
4586 latest_selection_anchors,
4587 is_row_soft_wrapped,
4588 sticky_header_excerpt_id,
4589 &mut block_resize_offset,
4590 window,
4591 cx,
4592 ) {
4593 blocks.push(BlockLayout {
4594 id: block.id(),
4595 x_offset,
4596 row: None,
4597 element,
4598 available_space: size(width, element_size.height.into()),
4599 style,
4600 overlaps_gutter: true,
4601 is_buffer_header: block.is_buffer_header(),
4602 });
4603 }
4604 }
4605
4606 if resized_blocks.is_empty() {
4607 *scroll_width =
4608 (*scroll_width).max(fixed_block_max_width - editor_margins.gutter.width);
4609 }
4610
4611 RenderBlocksOutput {
4612 blocks,
4613 row_block_types,
4614 resized_blocks: (!resized_blocks.is_empty()).then_some(resized_blocks),
4615 }
4616 }
4617
4618 fn layout_blocks(
4619 &self,
4620 blocks: &mut Vec<BlockLayout>,
4621 hitbox: &Hitbox,
4622 line_height: Pixels,
4623 scroll_position: gpui::Point<ScrollOffset>,
4624 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4625 window: &mut Window,
4626 cx: &mut App,
4627 ) {
4628 for block in blocks {
4629 let mut origin = if let Some(row) = block.row {
4630 hitbox.origin
4631 + point(
4632 block.x_offset,
4633 Pixels::from(
4634 (row.as_f64() - scroll_position.y)
4635 * ScrollPixelOffset::from(line_height),
4636 ),
4637 )
4638 } else {
4639 // Position the block outside the visible area
4640 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
4641 };
4642
4643 if !matches!(block.style, BlockStyle::Sticky) {
4644 origin += point(Pixels::from(-scroll_pixel_position.x), Pixels::ZERO);
4645 }
4646
4647 let focus_handle =
4648 block
4649 .element
4650 .prepaint_as_root(origin, block.available_space, window, cx);
4651
4652 if let Some(focus_handle) = focus_handle {
4653 self.editor.update(cx, |editor, _cx| {
4654 editor.set_focused_block(FocusedBlock {
4655 id: block.id,
4656 focus_handle: focus_handle.downgrade(),
4657 });
4658 });
4659 }
4660 }
4661 }
4662
4663 fn layout_sticky_buffer_header(
4664 &self,
4665 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
4666 scroll_position: gpui::Point<ScrollOffset>,
4667 line_height: Pixels,
4668 right_margin: Pixels,
4669 snapshot: &EditorSnapshot,
4670 hitbox: &Hitbox,
4671 selected_buffer_ids: &Vec<BufferId>,
4672 blocks: &[BlockLayout],
4673 latest_selection_anchors: &HashMap<BufferId, Anchor>,
4674 window: &mut Window,
4675 cx: &mut App,
4676 ) -> AnyElement {
4677 let jump_data = header_jump_data(
4678 snapshot,
4679 DisplayRow(scroll_position.y as u32),
4680 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
4681 excerpt,
4682 latest_selection_anchors,
4683 );
4684
4685 let editor_bg_color = cx.theme().colors().editor_background;
4686
4687 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
4688
4689 let available_width = hitbox.bounds.size.width - right_margin;
4690
4691 let mut header = v_flex()
4692 .w_full()
4693 .relative()
4694 .child(
4695 div()
4696 .w(available_width)
4697 .h(FILE_HEADER_HEIGHT as f32 * line_height)
4698 .bg(linear_gradient(
4699 0.,
4700 linear_color_stop(editor_bg_color.opacity(0.), 0.),
4701 linear_color_stop(editor_bg_color, 0.6),
4702 ))
4703 .absolute()
4704 .top_0(),
4705 )
4706 .child(
4707 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
4708 .into_any_element(),
4709 )
4710 .into_any_element();
4711
4712 let mut origin = hitbox.origin;
4713 // Move floating header up to avoid colliding with the next buffer header.
4714 for block in blocks.iter() {
4715 if !block.is_buffer_header {
4716 continue;
4717 }
4718
4719 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position.y as u32) else {
4720 continue;
4721 };
4722
4723 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
4724 let offset = scroll_position.y - max_row as f64;
4725
4726 if offset > 0.0 {
4727 origin.y -= Pixels::from(offset * ScrollPixelOffset::from(line_height));
4728 }
4729 break;
4730 }
4731
4732 let size = size(
4733 AvailableSpace::Definite(available_width),
4734 AvailableSpace::MinContent,
4735 );
4736
4737 header.prepaint_as_root(origin, size, window, cx);
4738
4739 header
4740 }
4741
4742 fn layout_sticky_headers(
4743 &self,
4744 snapshot: &EditorSnapshot,
4745 editor_width: Pixels,
4746 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4747 line_height: Pixels,
4748 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4749 content_origin: gpui::Point<Pixels>,
4750 gutter_dimensions: &GutterDimensions,
4751 gutter_hitbox: &Hitbox,
4752 text_hitbox: &Hitbox,
4753 style: &EditorStyle,
4754 relative_line_numbers: RelativeLineNumbers,
4755 relative_to: Option<DisplayRow>,
4756 window: &mut Window,
4757 cx: &mut App,
4758 ) -> Option<StickyHeaders> {
4759 let show_line_numbers = snapshot
4760 .show_line_numbers
4761 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
4762
4763 let rows = Self::sticky_headers(self.editor.read(cx), snapshot, style, cx);
4764
4765 let mut lines = Vec::<StickyHeaderLine>::new();
4766
4767 for StickyHeader {
4768 item,
4769 sticky_row,
4770 start_point,
4771 offset,
4772 } in rows.into_iter().rev()
4773 {
4774 let line = layout_line(
4775 sticky_row,
4776 snapshot,
4777 &self.style,
4778 editor_width,
4779 is_row_soft_wrapped,
4780 window,
4781 cx,
4782 );
4783
4784 let line_number = show_line_numbers.then(|| {
4785 let start_display_row = start_point.to_display_point(snapshot).row();
4786 let relative_number = relative_to
4787 .filter(|_| relative_line_numbers != RelativeLineNumbers::Disabled)
4788 .map(|base| {
4789 snapshot.relative_line_delta(
4790 base,
4791 start_display_row,
4792 relative_line_numbers == RelativeLineNumbers::Wrapped,
4793 )
4794 });
4795 let number = relative_number
4796 .filter(|&delta| delta != 0)
4797 .map(|delta| delta.unsigned_abs() as u32)
4798 .unwrap_or(start_point.row + 1);
4799 let color = cx.theme().colors().editor_line_number;
4800 self.shape_line_number(SharedString::from(number.to_string()), color, window)
4801 });
4802
4803 lines.push(StickyHeaderLine::new(
4804 sticky_row,
4805 line_height * offset as f32,
4806 line,
4807 line_number,
4808 item.range.start,
4809 line_height,
4810 scroll_pixel_position,
4811 content_origin,
4812 gutter_hitbox,
4813 text_hitbox,
4814 window,
4815 cx,
4816 ));
4817 }
4818
4819 lines.reverse();
4820 if lines.is_empty() {
4821 return None;
4822 }
4823
4824 Some(StickyHeaders {
4825 lines,
4826 gutter_background: cx.theme().colors().editor_gutter_background,
4827 content_background: self.style.background,
4828 gutter_right_padding: gutter_dimensions.right_padding,
4829 })
4830 }
4831
4832 pub(crate) fn sticky_headers(
4833 editor: &Editor,
4834 snapshot: &EditorSnapshot,
4835 style: &EditorStyle,
4836 cx: &App,
4837 ) -> Vec<StickyHeader> {
4838 let scroll_top = snapshot.scroll_position().y;
4839
4840 let mut end_rows = Vec::<DisplayRow>::new();
4841 let mut rows = Vec::<StickyHeader>::new();
4842
4843 let items = editor.sticky_headers(style, cx).unwrap_or_default();
4844
4845 for item in items {
4846 let start_point = item.range.start.to_point(snapshot.buffer_snapshot());
4847 let end_point = item.range.end.to_point(snapshot.buffer_snapshot());
4848
4849 let sticky_row = snapshot
4850 .display_snapshot
4851 .point_to_display_point(start_point, Bias::Left)
4852 .row();
4853 let end_row = snapshot
4854 .display_snapshot
4855 .point_to_display_point(end_point, Bias::Left)
4856 .row();
4857 let max_sticky_row = end_row.previous_row();
4858 if max_sticky_row <= sticky_row {
4859 continue;
4860 }
4861
4862 while end_rows
4863 .last()
4864 .is_some_and(|&last_end| last_end < sticky_row)
4865 {
4866 end_rows.pop();
4867 }
4868 let depth = end_rows.len();
4869 let adjusted_scroll_top = scroll_top + depth as f64;
4870
4871 if sticky_row.as_f64() >= adjusted_scroll_top || end_row.as_f64() <= adjusted_scroll_top
4872 {
4873 continue;
4874 }
4875
4876 let max_scroll_offset = max_sticky_row.as_f64() - scroll_top;
4877 let offset = (depth as f64).min(max_scroll_offset);
4878
4879 end_rows.push(end_row);
4880 rows.push(StickyHeader {
4881 item,
4882 sticky_row,
4883 start_point,
4884 offset,
4885 });
4886 }
4887
4888 rows
4889 }
4890
4891 fn layout_cursor_popovers(
4892 &self,
4893 line_height: Pixels,
4894 text_hitbox: &Hitbox,
4895 content_origin: gpui::Point<Pixels>,
4896 right_margin: Pixels,
4897 start_row: DisplayRow,
4898 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4899 line_layouts: &[LineWithInvisibles],
4900 cursor: DisplayPoint,
4901 cursor_point: Point,
4902 style: &EditorStyle,
4903 window: &mut Window,
4904 cx: &mut App,
4905 ) -> Option<ContextMenuLayout> {
4906 let mut min_menu_height = Pixels::ZERO;
4907 let mut max_menu_height = Pixels::ZERO;
4908 let mut height_above_menu = Pixels::ZERO;
4909 let height_below_menu = Pixels::ZERO;
4910 let mut edit_prediction_popover_visible = false;
4911 let mut context_menu_visible = false;
4912 let context_menu_placement;
4913
4914 {
4915 let editor = self.editor.read(cx);
4916 if editor.edit_prediction_visible_in_cursor_popover(editor.has_active_edit_prediction())
4917 {
4918 height_above_menu +=
4919 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
4920 edit_prediction_popover_visible = true;
4921 }
4922
4923 if editor.context_menu_visible()
4924 && let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin()
4925 {
4926 let (min_height_in_lines, max_height_in_lines) = editor
4927 .context_menu_options
4928 .as_ref()
4929 .map_or((3, 12), |options| {
4930 (options.min_entries_visible, options.max_entries_visible)
4931 });
4932
4933 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4934 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4935 context_menu_visible = true;
4936 }
4937 context_menu_placement = editor
4938 .context_menu_options
4939 .as_ref()
4940 .and_then(|options| options.placement.clone());
4941 }
4942
4943 let visible = edit_prediction_popover_visible || context_menu_visible;
4944 if !visible {
4945 return None;
4946 }
4947
4948 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
4949 let target_position = content_origin
4950 + gpui::Point {
4951 x: cmp::max(
4952 px(0.),
4953 Pixels::from(
4954 ScrollPixelOffset::from(
4955 cursor_row_layout.x_for_index(cursor.column() as usize),
4956 ) - scroll_pixel_position.x,
4957 ),
4958 ),
4959 y: cmp::max(
4960 px(0.),
4961 Pixels::from(
4962 cursor.row().next_row().as_f64() * ScrollPixelOffset::from(line_height)
4963 - scroll_pixel_position.y,
4964 ),
4965 ),
4966 };
4967
4968 let viewport_bounds =
4969 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4970 right: -right_margin - MENU_GAP,
4971 ..Default::default()
4972 });
4973
4974 let min_height = height_above_menu + min_menu_height + height_below_menu;
4975 let max_height = height_above_menu + max_menu_height + height_below_menu;
4976 let (laid_out_popovers, y_flipped) = self.layout_popovers_above_or_below_line(
4977 target_position,
4978 line_height,
4979 min_height,
4980 max_height,
4981 context_menu_placement,
4982 text_hitbox,
4983 viewport_bounds,
4984 window,
4985 cx,
4986 |height, max_width_for_stable_x, y_flipped, window, cx| {
4987 // First layout the menu to get its size - others can be at least this wide.
4988 let context_menu = if context_menu_visible {
4989 let menu_height = if y_flipped {
4990 height - height_below_menu
4991 } else {
4992 height - height_above_menu
4993 };
4994 let mut element = self
4995 .render_context_menu(line_height, menu_height, window, cx)
4996 .expect("Visible context menu should always render.");
4997 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4998 Some((CursorPopoverType::CodeContextMenu, element, size))
4999 } else {
5000 None
5001 };
5002 let min_width = context_menu
5003 .as_ref()
5004 .map_or(px(0.), |(_, _, size)| size.width);
5005 let max_width = max_width_for_stable_x.max(
5006 context_menu
5007 .as_ref()
5008 .map_or(px(0.), |(_, _, size)| size.width),
5009 );
5010
5011 let edit_prediction = if edit_prediction_popover_visible {
5012 self.editor.update(cx, move |editor, cx| {
5013 let accept_binding = editor.accept_edit_prediction_keybind(
5014 EditPredictionGranularity::Full,
5015 window,
5016 cx,
5017 );
5018 let mut element = editor.render_edit_prediction_cursor_popover(
5019 min_width,
5020 max_width,
5021 cursor_point,
5022 style,
5023 accept_binding.keystroke(),
5024 window,
5025 cx,
5026 )?;
5027 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
5028 Some((CursorPopoverType::EditPrediction, element, size))
5029 })
5030 } else {
5031 None
5032 };
5033 vec![edit_prediction, context_menu]
5034 .into_iter()
5035 .flatten()
5036 .collect::<Vec<_>>()
5037 },
5038 )?;
5039
5040 let (menu_ix, (_, menu_bounds)) = laid_out_popovers
5041 .iter()
5042 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))?;
5043 let last_ix = laid_out_popovers.len() - 1;
5044 let menu_is_last = menu_ix == last_ix;
5045 let first_popover_bounds = laid_out_popovers[0].1;
5046 let last_popover_bounds = laid_out_popovers[last_ix].1;
5047
5048 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
5049 // right, and otherwise it goes below or to the right.
5050 let mut target_bounds = Bounds::from_corners(
5051 first_popover_bounds.origin,
5052 last_popover_bounds.bottom_right(),
5053 );
5054 target_bounds.size.width = menu_bounds.size.width;
5055
5056 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
5057 // based on this is preferred for layout stability.
5058 let mut max_target_bounds = target_bounds;
5059 max_target_bounds.size.height = max_height;
5060 if y_flipped {
5061 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
5062 }
5063
5064 // Add spacing around `target_bounds` and `max_target_bounds`.
5065 let mut extend_amount = Edges::all(MENU_GAP);
5066 if y_flipped {
5067 extend_amount.bottom = line_height;
5068 } else {
5069 extend_amount.top = line_height;
5070 }
5071 let target_bounds = target_bounds.extend(extend_amount);
5072 let max_target_bounds = max_target_bounds.extend(extend_amount);
5073
5074 let must_place_above_or_below =
5075 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
5076 laid_out_popovers[menu_ix + 1..]
5077 .iter()
5078 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
5079 } else {
5080 false
5081 };
5082
5083 let aside_bounds = self.layout_context_menu_aside(
5084 y_flipped,
5085 *menu_bounds,
5086 target_bounds,
5087 max_target_bounds,
5088 max_menu_height,
5089 must_place_above_or_below,
5090 text_hitbox,
5091 viewport_bounds,
5092 window,
5093 cx,
5094 );
5095
5096 if let Some(menu_bounds) = laid_out_popovers.iter().find_map(|(popover_type, bounds)| {
5097 if matches!(popover_type, CursorPopoverType::CodeContextMenu) {
5098 Some(*bounds)
5099 } else {
5100 None
5101 }
5102 }) {
5103 let bounds = if let Some(aside_bounds) = aside_bounds {
5104 menu_bounds.union(&aside_bounds)
5105 } else {
5106 menu_bounds
5107 };
5108 return Some(ContextMenuLayout { y_flipped, bounds });
5109 }
5110
5111 None
5112 }
5113
5114 fn layout_gutter_menu(
5115 &self,
5116 line_height: Pixels,
5117 text_hitbox: &Hitbox,
5118 content_origin: gpui::Point<Pixels>,
5119 right_margin: Pixels,
5120 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5121 gutter_overshoot: Pixels,
5122 window: &mut Window,
5123 cx: &mut App,
5124 ) {
5125 let editor = self.editor.read(cx);
5126 if !editor.context_menu_visible() {
5127 return;
5128 }
5129 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
5130 editor.context_menu_origin()
5131 else {
5132 return;
5133 };
5134 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
5135 // indicator than just a plain first column of the text field.
5136 let target_position = content_origin
5137 + gpui::Point {
5138 x: -gutter_overshoot,
5139 y: Pixels::from(
5140 gutter_row.next_row().as_f64() * ScrollPixelOffset::from(line_height)
5141 - scroll_pixel_position.y,
5142 ),
5143 };
5144
5145 let (min_height_in_lines, max_height_in_lines) = editor
5146 .context_menu_options
5147 .as_ref()
5148 .map_or((3, 12), |options| {
5149 (options.min_entries_visible, options.max_entries_visible)
5150 });
5151
5152 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
5153 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
5154 let viewport_bounds =
5155 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
5156 right: -right_margin - MENU_GAP,
5157 ..Default::default()
5158 });
5159 self.layout_popovers_above_or_below_line(
5160 target_position,
5161 line_height,
5162 min_height,
5163 max_height,
5164 editor
5165 .context_menu_options
5166 .as_ref()
5167 .and_then(|options| options.placement.clone()),
5168 text_hitbox,
5169 viewport_bounds,
5170 window,
5171 cx,
5172 move |height, _max_width_for_stable_x, _, window, cx| {
5173 let mut element = self
5174 .render_context_menu(line_height, height, window, cx)
5175 .expect("Visible context menu should always render.");
5176 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
5177 vec![(CursorPopoverType::CodeContextMenu, element, size)]
5178 },
5179 );
5180 }
5181
5182 fn layout_popovers_above_or_below_line(
5183 &self,
5184 target_position: gpui::Point<Pixels>,
5185 line_height: Pixels,
5186 min_height: Pixels,
5187 max_height: Pixels,
5188 placement: Option<ContextMenuPlacement>,
5189 text_hitbox: &Hitbox,
5190 viewport_bounds: Bounds<Pixels>,
5191 window: &mut Window,
5192 cx: &mut App,
5193 make_sized_popovers: impl FnOnce(
5194 Pixels,
5195 Pixels,
5196 bool,
5197 &mut Window,
5198 &mut App,
5199 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
5200 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
5201 let text_style = TextStyleRefinement {
5202 line_height: Some(DefiniteLength::Fraction(
5203 BufferLineHeight::Comfortable.value(),
5204 )),
5205 ..Default::default()
5206 };
5207 window.with_text_style(Some(text_style), |window| {
5208 // If the max height won't fit below and there is more space above, put it above the line.
5209 let bottom_y_when_flipped = target_position.y - line_height;
5210 let available_above = bottom_y_when_flipped - text_hitbox.top();
5211 let available_below = text_hitbox.bottom() - target_position.y;
5212 let y_overflows_below = max_height > available_below;
5213 let mut y_flipped = match placement {
5214 Some(ContextMenuPlacement::Above) => true,
5215 Some(ContextMenuPlacement::Below) => false,
5216 None => y_overflows_below && available_above > available_below,
5217 };
5218 let mut height = cmp::min(
5219 max_height,
5220 if y_flipped {
5221 available_above
5222 } else {
5223 available_below
5224 },
5225 );
5226
5227 // If the min height doesn't fit within text bounds, instead fit within the window.
5228 if height < min_height {
5229 let available_above = bottom_y_when_flipped;
5230 let available_below = viewport_bounds.bottom() - target_position.y;
5231 let (y_flipped_override, height_override) = match placement {
5232 Some(ContextMenuPlacement::Above) => {
5233 (true, cmp::min(available_above, min_height))
5234 }
5235 Some(ContextMenuPlacement::Below) => {
5236 (false, cmp::min(available_below, min_height))
5237 }
5238 None => {
5239 if available_below > min_height {
5240 (false, min_height)
5241 } else if available_above > min_height {
5242 (true, min_height)
5243 } else if available_above > available_below {
5244 (true, available_above)
5245 } else {
5246 (false, available_below)
5247 }
5248 }
5249 };
5250 y_flipped = y_flipped_override;
5251 height = height_override;
5252 }
5253
5254 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
5255
5256 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
5257 // for very narrow windows.
5258 let popovers =
5259 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
5260 if popovers.is_empty() {
5261 return None;
5262 }
5263
5264 let max_width = popovers
5265 .iter()
5266 .map(|(_, _, size)| size.width)
5267 .max()
5268 .unwrap_or_default();
5269
5270 let mut current_position = gpui::Point {
5271 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
5272 // overflow. Include space for the scrollbar.
5273 x: target_position
5274 .x
5275 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
5276 y: if y_flipped {
5277 bottom_y_when_flipped
5278 } else {
5279 target_position.y
5280 },
5281 };
5282
5283 let mut laid_out_popovers = popovers
5284 .into_iter()
5285 .map(|(popover_type, element, size)| {
5286 if y_flipped {
5287 current_position.y -= size.height;
5288 }
5289 let position = current_position;
5290 window.defer_draw(element, current_position, 1);
5291 if !y_flipped {
5292 current_position.y += size.height + MENU_GAP;
5293 } else {
5294 current_position.y -= MENU_GAP;
5295 }
5296 (popover_type, Bounds::new(position, size))
5297 })
5298 .collect::<Vec<_>>();
5299
5300 if y_flipped {
5301 laid_out_popovers.reverse();
5302 }
5303
5304 Some((laid_out_popovers, y_flipped))
5305 })
5306 }
5307
5308 fn layout_context_menu_aside(
5309 &self,
5310 y_flipped: bool,
5311 menu_bounds: Bounds<Pixels>,
5312 target_bounds: Bounds<Pixels>,
5313 max_target_bounds: Bounds<Pixels>,
5314 max_height: Pixels,
5315 must_place_above_or_below: bool,
5316 text_hitbox: &Hitbox,
5317 viewport_bounds: Bounds<Pixels>,
5318 window: &mut Window,
5319 cx: &mut App,
5320 ) -> Option<Bounds<Pixels>> {
5321 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
5322 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
5323 && !must_place_above_or_below
5324 {
5325 let max_width = cmp::min(
5326 available_within_viewport.right - px(1.),
5327 MENU_ASIDE_MAX_WIDTH,
5328 );
5329 let mut aside = self.render_context_menu_aside(
5330 size(max_width, max_height - POPOVER_Y_PADDING),
5331 window,
5332 cx,
5333 )?;
5334 let size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5335 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
5336 Some((aside, right_position, size))
5337 } else {
5338 let max_size = size(
5339 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
5340 // won't be needed here.
5341 cmp::min(
5342 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
5343 viewport_bounds.right(),
5344 ),
5345 cmp::min(
5346 max_height,
5347 cmp::max(
5348 available_within_viewport.top,
5349 available_within_viewport.bottom,
5350 ),
5351 ) - POPOVER_Y_PADDING,
5352 );
5353 let mut aside = self.render_context_menu_aside(max_size, window, cx)?;
5354 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5355
5356 let top_position = point(
5357 menu_bounds.origin.x,
5358 target_bounds.top() - actual_size.height,
5359 );
5360 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
5361
5362 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
5363 // Prefer to fit on the same side of the line as the menu, then on the other side of
5364 // the line.
5365 if !y_flipped && wanted.height < available.bottom {
5366 Some(bottom_position)
5367 } else if !y_flipped && wanted.height < available.top {
5368 Some(top_position)
5369 } else if y_flipped && wanted.height < available.top {
5370 Some(top_position)
5371 } else if y_flipped && wanted.height < available.bottom {
5372 Some(bottom_position)
5373 } else {
5374 None
5375 }
5376 };
5377
5378 // Prefer choosing a direction using max sizes rather than actual size for stability.
5379 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
5380 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
5381 let aside_position = fit_within(available_within_text, wanted)
5382 // Fallback: fit max size in window.
5383 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
5384 // Fallback: fit actual size in window.
5385 .or_else(|| fit_within(available_within_viewport, actual_size));
5386
5387 aside_position.map(|position| (aside, position, actual_size))
5388 };
5389
5390 // Skip drawing if it doesn't fit anywhere.
5391 if let Some((aside, position, size)) = positioned_aside {
5392 let aside_bounds = Bounds::new(position, size);
5393 window.defer_draw(aside, position, 2);
5394 return Some(aside_bounds);
5395 }
5396
5397 None
5398 }
5399
5400 fn render_context_menu(
5401 &self,
5402 line_height: Pixels,
5403 height: Pixels,
5404 window: &mut Window,
5405 cx: &mut App,
5406 ) -> Option<AnyElement> {
5407 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
5408 self.editor.update(cx, |editor, cx| {
5409 editor.render_context_menu(max_height_in_lines, window, cx)
5410 })
5411 }
5412
5413 fn render_context_menu_aside(
5414 &self,
5415 max_size: Size<Pixels>,
5416 window: &mut Window,
5417 cx: &mut App,
5418 ) -> Option<AnyElement> {
5419 if max_size.width < px(100.) || max_size.height < px(12.) {
5420 None
5421 } else {
5422 self.editor.update(cx, |editor, cx| {
5423 editor.render_context_menu_aside(max_size, window, cx)
5424 })
5425 }
5426 }
5427
5428 fn layout_mouse_context_menu(
5429 &self,
5430 editor_snapshot: &EditorSnapshot,
5431 visible_range: Range<DisplayRow>,
5432 content_origin: gpui::Point<Pixels>,
5433 window: &mut Window,
5434 cx: &mut App,
5435 ) -> Option<AnyElement> {
5436 let position = self.editor.update(cx, |editor, cx| {
5437 let visible_start_point = editor.display_to_pixel_point(
5438 DisplayPoint::new(visible_range.start, 0),
5439 editor_snapshot,
5440 window,
5441 cx,
5442 )?;
5443 let visible_end_point = editor.display_to_pixel_point(
5444 DisplayPoint::new(visible_range.end, 0),
5445 editor_snapshot,
5446 window,
5447 cx,
5448 )?;
5449
5450 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5451 let (source_display_point, position) = match mouse_context_menu.position {
5452 MenuPosition::PinnedToScreen(point) => (None, point),
5453 MenuPosition::PinnedToEditor { source, offset } => {
5454 let source_display_point = source.to_display_point(editor_snapshot);
5455 let source_point =
5456 editor.to_pixel_point(source, editor_snapshot, window, cx)?;
5457 let position = content_origin + source_point + offset;
5458 (Some(source_display_point), position)
5459 }
5460 };
5461
5462 let source_included = source_display_point.is_none_or(|source_display_point| {
5463 visible_range
5464 .to_inclusive()
5465 .contains(&source_display_point.row())
5466 });
5467 let position_included =
5468 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
5469 if !source_included && !position_included {
5470 None
5471 } else {
5472 Some(position)
5473 }
5474 })?;
5475
5476 let text_style = TextStyleRefinement {
5477 line_height: Some(DefiniteLength::Fraction(
5478 BufferLineHeight::Comfortable.value(),
5479 )),
5480 ..Default::default()
5481 };
5482 window.with_text_style(Some(text_style), |window| {
5483 let mut element = self.editor.read_with(cx, |editor, _| {
5484 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5485 let context_menu = mouse_context_menu.context_menu.clone();
5486
5487 Some(
5488 deferred(
5489 anchored()
5490 .position(position)
5491 .child(context_menu)
5492 .anchor(Corner::TopLeft)
5493 .snap_to_window_with_margin(px(8.)),
5494 )
5495 .with_priority(1)
5496 .into_any(),
5497 )
5498 })?;
5499
5500 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
5501 Some(element)
5502 })
5503 }
5504
5505 fn layout_hover_popovers(
5506 &self,
5507 snapshot: &EditorSnapshot,
5508 hitbox: &Hitbox,
5509 visible_display_row_range: Range<DisplayRow>,
5510 content_origin: gpui::Point<Pixels>,
5511 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5512 line_layouts: &[LineWithInvisibles],
5513 line_height: Pixels,
5514 em_width: Pixels,
5515 context_menu_layout: Option<ContextMenuLayout>,
5516 window: &mut Window,
5517 cx: &mut App,
5518 ) {
5519 struct MeasuredHoverPopover {
5520 element: AnyElement,
5521 size: Size<Pixels>,
5522 horizontal_offset: Pixels,
5523 }
5524
5525 let max_size = size(
5526 (120. * em_width) // Default size
5527 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5528 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5529 (16. * line_height) // Default size
5530 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5531 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5532 );
5533
5534 // Don't show hover popovers when context menu is open to avoid overlap
5535 let has_context_menu = self.editor.read(cx).mouse_context_menu.is_some();
5536 if has_context_menu {
5537 return;
5538 }
5539
5540 let hover_popovers = self.editor.update(cx, |editor, cx| {
5541 editor.hover_state.render(
5542 snapshot,
5543 visible_display_row_range.clone(),
5544 max_size,
5545 &editor.text_layout_details(window),
5546 window,
5547 cx,
5548 )
5549 });
5550 let Some((popover_position, hover_popovers)) = hover_popovers else {
5551 return;
5552 };
5553
5554 // This is safe because we check on layout whether the required row is available
5555 let hovered_row_layout = &line_layouts[popover_position
5556 .row()
5557 .minus(visible_display_row_range.start)
5558 as usize];
5559
5560 // Compute Hovered Point
5561 let x = hovered_row_layout.x_for_index(popover_position.column() as usize)
5562 - Pixels::from(scroll_pixel_position.x);
5563 let y = Pixels::from(
5564 popover_position.row().as_f64() * ScrollPixelOffset::from(line_height)
5565 - scroll_pixel_position.y,
5566 );
5567 let hovered_point = content_origin + point(x, y);
5568
5569 let mut overall_height = Pixels::ZERO;
5570 let mut measured_hover_popovers = Vec::new();
5571 for (position, mut hover_popover) in hover_popovers.into_iter().with_position() {
5572 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
5573 let horizontal_offset =
5574 (hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
5575 .min(Pixels::ZERO);
5576 match position {
5577 itertools::Position::Middle | itertools::Position::Last => {
5578 overall_height += HOVER_POPOVER_GAP
5579 }
5580 _ => {}
5581 }
5582 overall_height += size.height;
5583 measured_hover_popovers.push(MeasuredHoverPopover {
5584 element: hover_popover,
5585 size,
5586 horizontal_offset,
5587 });
5588 }
5589
5590 fn draw_occluder(
5591 width: Pixels,
5592 origin: gpui::Point<Pixels>,
5593 window: &mut Window,
5594 cx: &mut App,
5595 ) {
5596 let mut occlusion = div()
5597 .size_full()
5598 .occlude()
5599 .on_mouse_move(|_, _, cx| cx.stop_propagation())
5600 .into_any_element();
5601 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
5602 window.defer_draw(occlusion, origin, 2);
5603 }
5604
5605 fn place_popovers_above(
5606 hovered_point: gpui::Point<Pixels>,
5607 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5608 window: &mut Window,
5609 cx: &mut App,
5610 ) {
5611 let mut current_y = hovered_point.y;
5612 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5613 let size = popover.size;
5614 let popover_origin = point(
5615 hovered_point.x + popover.horizontal_offset,
5616 current_y - size.height,
5617 );
5618
5619 window.defer_draw(popover.element, popover_origin, 2);
5620 if position != itertools::Position::Last {
5621 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
5622 draw_occluder(size.width, origin, window, cx);
5623 }
5624
5625 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5626 }
5627 }
5628
5629 fn place_popovers_below(
5630 hovered_point: gpui::Point<Pixels>,
5631 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5632 line_height: Pixels,
5633 window: &mut Window,
5634 cx: &mut App,
5635 ) {
5636 let mut current_y = hovered_point.y + line_height;
5637 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5638 let size = popover.size;
5639 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5640
5641 window.defer_draw(popover.element, popover_origin, 2);
5642 if position != itertools::Position::Last {
5643 let origin = point(popover_origin.x, popover_origin.y + size.height);
5644 draw_occluder(size.width, origin, window, cx);
5645 }
5646
5647 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5648 }
5649 }
5650
5651 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5652 context_menu_layout
5653 .as_ref()
5654 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5655 };
5656
5657 let can_place_above = {
5658 let mut bounds_above = Vec::new();
5659 let mut current_y = hovered_point.y;
5660 for popover in &measured_hover_popovers {
5661 let size = popover.size;
5662 let popover_origin = point(
5663 hovered_point.x + popover.horizontal_offset,
5664 current_y - size.height,
5665 );
5666 bounds_above.push(Bounds::new(popover_origin, size));
5667 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5668 }
5669 bounds_above
5670 .iter()
5671 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5672 };
5673
5674 let can_place_below = || {
5675 let mut bounds_below = Vec::new();
5676 let mut current_y = hovered_point.y + line_height;
5677 for popover in &measured_hover_popovers {
5678 let size = popover.size;
5679 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5680 bounds_below.push(Bounds::new(popover_origin, size));
5681 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5682 }
5683 bounds_below
5684 .iter()
5685 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5686 };
5687
5688 if can_place_above {
5689 // try placing above hovered point
5690 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5691 } else if can_place_below() {
5692 // try placing below hovered point
5693 place_popovers_below(
5694 hovered_point,
5695 measured_hover_popovers,
5696 line_height,
5697 window,
5698 cx,
5699 );
5700 } else {
5701 // try to place popovers around the context menu
5702 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5703 let total_width = measured_hover_popovers
5704 .iter()
5705 .map(|p| p.size.width)
5706 .max()
5707 .unwrap_or(Pixels::ZERO);
5708 let y_for_horizontal_positioning = if menu.y_flipped {
5709 menu.bounds.bottom() - overall_height
5710 } else {
5711 menu.bounds.top()
5712 };
5713 let possible_origins = vec![
5714 // left of context menu
5715 point(
5716 menu.bounds.left() - total_width - HOVER_POPOVER_GAP,
5717 y_for_horizontal_positioning,
5718 ),
5719 // right of context menu
5720 point(
5721 menu.bounds.right() + HOVER_POPOVER_GAP,
5722 y_for_horizontal_positioning,
5723 ),
5724 // top of context menu
5725 point(
5726 menu.bounds.left(),
5727 menu.bounds.top() - overall_height - HOVER_POPOVER_GAP,
5728 ),
5729 // bottom of context menu
5730 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5731 ];
5732 possible_origins.into_iter().find(|&origin| {
5733 Bounds::new(origin, size(total_width, overall_height))
5734 .is_contained_within(hitbox)
5735 })
5736 });
5737 if let Some(origin) = origin_surrounding_menu {
5738 let mut current_y = origin.y;
5739 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5740 let size = popover.size;
5741 let popover_origin = point(origin.x, current_y);
5742
5743 window.defer_draw(popover.element, popover_origin, 2);
5744 if position != itertools::Position::Last {
5745 let origin = point(popover_origin.x, popover_origin.y + size.height);
5746 draw_occluder(size.width, origin, window, cx);
5747 }
5748
5749 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5750 }
5751 } else {
5752 // fallback to existing above/below cursor logic
5753 // this might overlap menu or overflow in rare case
5754 if can_place_above {
5755 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5756 } else {
5757 place_popovers_below(
5758 hovered_point,
5759 measured_hover_popovers,
5760 line_height,
5761 window,
5762 cx,
5763 );
5764 }
5765 }
5766 }
5767 }
5768
5769 fn layout_word_diff_highlights(
5770 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5771 row_infos: &[RowInfo],
5772 start_row: DisplayRow,
5773 snapshot: &EditorSnapshot,
5774 highlighted_ranges: &mut Vec<(Range<DisplayPoint>, Hsla)>,
5775 cx: &mut App,
5776 ) {
5777 let colors = cx.theme().colors();
5778
5779 let word_highlights = display_hunks
5780 .into_iter()
5781 .filter_map(|(hunk, _)| match hunk {
5782 DisplayDiffHunk::Unfolded {
5783 word_diffs, status, ..
5784 } => Some((word_diffs, status)),
5785 _ => None,
5786 })
5787 .filter(|(_, status)| status.is_modified())
5788 .flat_map(|(word_diffs, _)| word_diffs)
5789 .filter_map(|word_diff| {
5790 let start_point = word_diff.start.to_display_point(&snapshot.display_snapshot);
5791 let end_point = word_diff.end.to_display_point(&snapshot.display_snapshot);
5792 let start_row_offset = start_point.row().0.saturating_sub(start_row.0) as usize;
5793
5794 row_infos
5795 .get(start_row_offset)
5796 .and_then(|row_info| row_info.diff_status)
5797 .and_then(|diff_status| {
5798 let background_color = match diff_status.kind {
5799 DiffHunkStatusKind::Added => colors.version_control_word_added,
5800 DiffHunkStatusKind::Deleted => colors.version_control_word_deleted,
5801 DiffHunkStatusKind::Modified => {
5802 debug_panic!("modified diff status for row info");
5803 return None;
5804 }
5805 };
5806 Some((start_point..end_point, background_color))
5807 })
5808 });
5809
5810 highlighted_ranges.extend(word_highlights);
5811 }
5812
5813 fn layout_diff_hunk_controls(
5814 &self,
5815 row_range: Range<DisplayRow>,
5816 row_infos: &[RowInfo],
5817 text_hitbox: &Hitbox,
5818 newest_cursor_position: Option<DisplayPoint>,
5819 line_height: Pixels,
5820 right_margin: Pixels,
5821 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5822 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5823 highlighted_rows: &BTreeMap<DisplayRow, LineHighlight>,
5824 editor: Entity<Editor>,
5825 window: &mut Window,
5826 cx: &mut App,
5827 ) -> (Vec<AnyElement>, Vec<(DisplayRow, Bounds<Pixels>)>) {
5828 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
5829 let hovered_diff_hunk_row = editor.read(cx).hovered_diff_hunk_row;
5830
5831 let mut controls = vec![];
5832 let mut control_bounds = vec![];
5833
5834 let active_positions = [
5835 hovered_diff_hunk_row.map(|row| DisplayPoint::new(row, 0)),
5836 newest_cursor_position,
5837 ];
5838
5839 for (hunk, _) in display_hunks {
5840 if let DisplayDiffHunk::Unfolded {
5841 display_row_range,
5842 multi_buffer_range,
5843 status,
5844 is_created_file,
5845 ..
5846 } = &hunk
5847 {
5848 if display_row_range.start < row_range.start
5849 || display_row_range.start >= row_range.end
5850 {
5851 continue;
5852 }
5853 if highlighted_rows
5854 .get(&display_row_range.start)
5855 .and_then(|highlight| highlight.type_id)
5856 .is_some_and(|type_id| {
5857 [
5858 TypeId::of::<ConflictsOuter>(),
5859 TypeId::of::<ConflictsOursMarker>(),
5860 TypeId::of::<ConflictsOurs>(),
5861 TypeId::of::<ConflictsTheirs>(),
5862 TypeId::of::<ConflictsTheirsMarker>(),
5863 ]
5864 .contains(&type_id)
5865 })
5866 {
5867 continue;
5868 }
5869 let row_ix = (display_row_range.start - row_range.start).0 as usize;
5870 if row_infos[row_ix].diff_status.is_none() {
5871 continue;
5872 }
5873 if row_infos[row_ix]
5874 .diff_status
5875 .is_some_and(|status| status.is_added())
5876 && !status.is_added()
5877 {
5878 continue;
5879 }
5880
5881 if active_positions
5882 .iter()
5883 .any(|p| p.is_some_and(|p| display_row_range.contains(&p.row())))
5884 {
5885 let y = (display_row_range.start.as_f64()
5886 * ScrollPixelOffset::from(line_height)
5887 + ScrollPixelOffset::from(text_hitbox.bounds.top())
5888 - scroll_pixel_position.y)
5889 .into();
5890
5891 let mut element = render_diff_hunk_controls(
5892 display_row_range.start.0,
5893 status,
5894 multi_buffer_range.clone(),
5895 *is_created_file,
5896 line_height,
5897 &editor,
5898 window,
5899 cx,
5900 );
5901 let size =
5902 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
5903
5904 let x = text_hitbox.bounds.right() - right_margin - px(10.) - size.width;
5905
5906 if x < text_hitbox.bounds.left() {
5907 continue;
5908 }
5909
5910 let bounds = Bounds::new(gpui::Point::new(x, y), size);
5911 control_bounds.push((display_row_range.start, bounds));
5912
5913 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
5914 element.prepaint(window, cx)
5915 });
5916 controls.push(element);
5917 }
5918 }
5919 }
5920
5921 (controls, control_bounds)
5922 }
5923
5924 fn layout_signature_help(
5925 &self,
5926 hitbox: &Hitbox,
5927 content_origin: gpui::Point<Pixels>,
5928 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5929 newest_selection_head: Option<DisplayPoint>,
5930 start_row: DisplayRow,
5931 line_layouts: &[LineWithInvisibles],
5932 line_height: Pixels,
5933 em_width: Pixels,
5934 context_menu_layout: Option<ContextMenuLayout>,
5935 window: &mut Window,
5936 cx: &mut App,
5937 ) {
5938 if !self.editor.focus_handle(cx).is_focused(window) {
5939 return;
5940 }
5941 let Some(newest_selection_head) = newest_selection_head else {
5942 return;
5943 };
5944
5945 let max_size = size(
5946 (120. * em_width) // Default size
5947 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5948 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5949 (16. * line_height) // Default size
5950 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5951 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5952 );
5953
5954 let maybe_element = self.editor.update(cx, |editor, cx| {
5955 if let Some(popover) = editor.signature_help_state.popover_mut() {
5956 let element = popover.render(max_size, window, cx);
5957 Some(element)
5958 } else {
5959 None
5960 }
5961 });
5962 let Some(mut element) = maybe_element else {
5963 return;
5964 };
5965
5966 let selection_row = newest_selection_head.row();
5967 let Some(cursor_row_layout) = (selection_row >= start_row)
5968 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
5969 .flatten()
5970 else {
5971 return;
5972 };
5973
5974 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
5975 - Pixels::from(scroll_pixel_position.x);
5976 let target_y = Pixels::from(
5977 selection_row.as_f64() * ScrollPixelOffset::from(line_height) - scroll_pixel_position.y,
5978 );
5979 let target_point = content_origin + point(target_x, target_y);
5980
5981 let actual_size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
5982
5983 let (popover_bounds_above, popover_bounds_below) = {
5984 let horizontal_offset = (hitbox.top_right().x
5985 - POPOVER_RIGHT_OFFSET
5986 - (target_point.x + actual_size.width))
5987 .min(Pixels::ZERO);
5988 let initial_x = target_point.x + horizontal_offset;
5989 (
5990 Bounds::new(
5991 point(initial_x, target_point.y - actual_size.height),
5992 actual_size,
5993 ),
5994 Bounds::new(
5995 point(initial_x, target_point.y + line_height + HOVER_POPOVER_GAP),
5996 actual_size,
5997 ),
5998 )
5999 };
6000
6001 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
6002 context_menu_layout
6003 .as_ref()
6004 .is_some_and(|menu| bounds.intersects(&menu.bounds))
6005 };
6006
6007 let final_origin = if popover_bounds_above.is_contained_within(hitbox)
6008 && !intersects_menu(popover_bounds_above)
6009 {
6010 // try placing above cursor
6011 popover_bounds_above.origin
6012 } else if popover_bounds_below.is_contained_within(hitbox)
6013 && !intersects_menu(popover_bounds_below)
6014 {
6015 // try placing below cursor
6016 popover_bounds_below.origin
6017 } else {
6018 // try surrounding context menu if exists
6019 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
6020 let y_for_horizontal_positioning = if menu.y_flipped {
6021 menu.bounds.bottom() - actual_size.height
6022 } else {
6023 menu.bounds.top()
6024 };
6025 let possible_origins = vec![
6026 // left of context menu
6027 point(
6028 menu.bounds.left() - actual_size.width - HOVER_POPOVER_GAP,
6029 y_for_horizontal_positioning,
6030 ),
6031 // right of context menu
6032 point(
6033 menu.bounds.right() + HOVER_POPOVER_GAP,
6034 y_for_horizontal_positioning,
6035 ),
6036 // top of context menu
6037 point(
6038 menu.bounds.left(),
6039 menu.bounds.top() - actual_size.height - HOVER_POPOVER_GAP,
6040 ),
6041 // bottom of context menu
6042 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
6043 ];
6044 possible_origins
6045 .into_iter()
6046 .find(|&origin| Bounds::new(origin, actual_size).is_contained_within(hitbox))
6047 });
6048 origin_surrounding_menu.unwrap_or_else(|| {
6049 // fallback to existing above/below cursor logic
6050 // this might overlap menu or overflow in rare case
6051 if popover_bounds_above.is_contained_within(hitbox) {
6052 popover_bounds_above.origin
6053 } else {
6054 popover_bounds_below.origin
6055 }
6056 })
6057 };
6058
6059 window.defer_draw(element, final_origin, 2);
6060 }
6061
6062 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
6063 window.paint_layer(layout.hitbox.bounds, |window| {
6064 let scroll_top = layout.position_map.snapshot.scroll_position().y;
6065 let gutter_bg = cx.theme().colors().editor_gutter_background;
6066 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
6067 window.paint_quad(fill(
6068 layout.position_map.text_hitbox.bounds,
6069 self.style.background,
6070 ));
6071
6072 if matches!(
6073 layout.mode,
6074 EditorMode::Full { .. } | EditorMode::Minimap { .. }
6075 ) {
6076 let show_active_line_background = match layout.mode {
6077 EditorMode::Full {
6078 show_active_line_background,
6079 ..
6080 } => show_active_line_background,
6081 EditorMode::Minimap { .. } => true,
6082 _ => false,
6083 };
6084 let mut active_rows = layout.active_rows.iter().peekable();
6085 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
6086 let mut end_row = start_row.0;
6087 while active_rows
6088 .peek()
6089 .is_some_and(|(active_row, has_selection)| {
6090 active_row.0 == end_row + 1
6091 && has_selection.selection == contains_non_empty_selection.selection
6092 })
6093 {
6094 active_rows.next().unwrap();
6095 end_row += 1;
6096 }
6097
6098 if show_active_line_background && !contains_non_empty_selection.selection {
6099 let highlight_h_range =
6100 match layout.position_map.snapshot.current_line_highlight {
6101 CurrentLineHighlight::Gutter => Some(Range {
6102 start: layout.hitbox.left(),
6103 end: layout.gutter_hitbox.right(),
6104 }),
6105 CurrentLineHighlight::Line => Some(Range {
6106 start: layout.position_map.text_hitbox.bounds.left(),
6107 end: layout.position_map.text_hitbox.bounds.right(),
6108 }),
6109 CurrentLineHighlight::All => Some(Range {
6110 start: layout.hitbox.left(),
6111 end: layout.hitbox.right(),
6112 }),
6113 CurrentLineHighlight::None => None,
6114 };
6115 if let Some(range) = highlight_h_range {
6116 let active_line_bg = cx.theme().colors().editor_active_line_background;
6117 let bounds = Bounds {
6118 origin: point(
6119 range.start,
6120 layout.hitbox.origin.y
6121 + Pixels::from(
6122 (start_row.as_f64() - scroll_top)
6123 * ScrollPixelOffset::from(
6124 layout.position_map.line_height,
6125 ),
6126 ),
6127 ),
6128 size: size(
6129 range.end - range.start,
6130 layout.position_map.line_height
6131 * (end_row - start_row.0 + 1) as f32,
6132 ),
6133 };
6134 window.paint_quad(fill(bounds, active_line_bg));
6135 }
6136 }
6137 }
6138
6139 let mut paint_highlight = |highlight_row_start: DisplayRow,
6140 highlight_row_end: DisplayRow,
6141 highlight: crate::LineHighlight,
6142 edges| {
6143 let mut origin_x = layout.hitbox.left();
6144 let mut width = layout.hitbox.size.width;
6145 if !highlight.include_gutter {
6146 origin_x += layout.gutter_hitbox.size.width;
6147 width -= layout.gutter_hitbox.size.width;
6148 }
6149
6150 let origin = point(
6151 origin_x,
6152 layout.hitbox.origin.y
6153 + Pixels::from(
6154 (highlight_row_start.as_f64() - scroll_top)
6155 * ScrollPixelOffset::from(layout.position_map.line_height),
6156 ),
6157 );
6158 let size = size(
6159 width,
6160 layout.position_map.line_height
6161 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
6162 );
6163 let mut quad = fill(Bounds { origin, size }, highlight.background);
6164 if let Some(border_color) = highlight.border {
6165 quad.border_color = border_color;
6166 quad.border_widths = edges
6167 }
6168 window.paint_quad(quad);
6169 };
6170
6171 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
6172 None;
6173 for (&new_row, &new_background) in &layout.highlighted_rows {
6174 match &mut current_paint {
6175 &mut Some((current_background, ref mut current_range, mut edges)) => {
6176 let new_range_started = current_background != new_background
6177 || current_range.end.next_row() != new_row;
6178 if new_range_started {
6179 if current_range.end.next_row() == new_row {
6180 edges.bottom = px(0.);
6181 };
6182 paint_highlight(
6183 current_range.start,
6184 current_range.end,
6185 current_background,
6186 edges,
6187 );
6188 let edges = Edges {
6189 top: if current_range.end.next_row() != new_row {
6190 px(1.)
6191 } else {
6192 px(0.)
6193 },
6194 bottom: px(1.),
6195 ..Default::default()
6196 };
6197 current_paint = Some((new_background, new_row..new_row, edges));
6198 continue;
6199 } else {
6200 current_range.end = current_range.end.next_row();
6201 }
6202 }
6203 None => {
6204 let edges = Edges {
6205 top: px(1.),
6206 bottom: px(1.),
6207 ..Default::default()
6208 };
6209 current_paint = Some((new_background, new_row..new_row, edges))
6210 }
6211 };
6212 }
6213 if let Some((color, range, edges)) = current_paint {
6214 paint_highlight(range.start, range.end, color, edges);
6215 }
6216
6217 for (guide_x, active) in layout.wrap_guides.iter() {
6218 let color = if *active {
6219 cx.theme().colors().editor_active_wrap_guide
6220 } else {
6221 cx.theme().colors().editor_wrap_guide
6222 };
6223 window.paint_quad(fill(
6224 Bounds {
6225 origin: point(*guide_x, layout.position_map.text_hitbox.origin.y),
6226 size: size(px(1.), layout.position_map.text_hitbox.size.height),
6227 },
6228 color,
6229 ));
6230 }
6231 }
6232 })
6233 }
6234
6235 fn paint_indent_guides(
6236 &mut self,
6237 layout: &mut EditorLayout,
6238 window: &mut Window,
6239 cx: &mut App,
6240 ) {
6241 let Some(indent_guides) = &layout.indent_guides else {
6242 return;
6243 };
6244
6245 let faded_color = |color: Hsla, alpha: f32| {
6246 let mut faded = color;
6247 faded.a = alpha;
6248 faded
6249 };
6250
6251 for indent_guide in indent_guides {
6252 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
6253 let settings = &indent_guide.settings;
6254
6255 // TODO fixed for now, expose them through themes later
6256 const INDENT_AWARE_ALPHA: f32 = 0.2;
6257 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
6258 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
6259 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
6260
6261 let line_color = match (settings.coloring, indent_guide.active) {
6262 (IndentGuideColoring::Disabled, _) => None,
6263 (IndentGuideColoring::Fixed, false) => {
6264 Some(cx.theme().colors().editor_indent_guide)
6265 }
6266 (IndentGuideColoring::Fixed, true) => {
6267 Some(cx.theme().colors().editor_indent_guide_active)
6268 }
6269 (IndentGuideColoring::IndentAware, false) => {
6270 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
6271 }
6272 (IndentGuideColoring::IndentAware, true) => {
6273 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
6274 }
6275 };
6276
6277 let background_color = match (settings.background_coloring, indent_guide.active) {
6278 (IndentGuideBackgroundColoring::Disabled, _) => None,
6279 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
6280 indent_accent_colors,
6281 INDENT_AWARE_BACKGROUND_ALPHA,
6282 )),
6283 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
6284 indent_accent_colors,
6285 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
6286 )),
6287 };
6288
6289 let requested_line_width = if indent_guide.active {
6290 settings.active_line_width
6291 } else {
6292 settings.line_width
6293 }
6294 .clamp(1, 10);
6295 let mut line_indicator_width = 0.;
6296 if let Some(color) = line_color {
6297 window.paint_quad(fill(
6298 Bounds {
6299 origin: indent_guide.origin,
6300 size: size(px(requested_line_width as f32), indent_guide.length),
6301 },
6302 color,
6303 ));
6304 line_indicator_width = requested_line_width as f32;
6305 }
6306
6307 if let Some(color) = background_color {
6308 let width = indent_guide.single_indent_width - px(line_indicator_width);
6309 window.paint_quad(fill(
6310 Bounds {
6311 origin: point(
6312 indent_guide.origin.x + px(line_indicator_width),
6313 indent_guide.origin.y,
6314 ),
6315 size: size(width, indent_guide.length),
6316 },
6317 color,
6318 ));
6319 }
6320 }
6321 }
6322
6323 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6324 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
6325
6326 let line_height = layout.position_map.line_height;
6327 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
6328
6329 for line_layout in layout.line_numbers.values() {
6330 for LineNumberSegment {
6331 shaped_line,
6332 hitbox,
6333 } in &line_layout.segments
6334 {
6335 let Some(hitbox) = hitbox else {
6336 continue;
6337 };
6338
6339 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
6340 let color = cx.theme().colors().editor_hover_line_number;
6341
6342 let line = self.shape_line_number(shaped_line.text.clone(), color, window);
6343 line.paint(
6344 hitbox.origin,
6345 line_height,
6346 TextAlign::Left,
6347 None,
6348 window,
6349 cx,
6350 )
6351 .log_err()
6352 } else {
6353 shaped_line
6354 .paint(
6355 hitbox.origin,
6356 line_height,
6357 TextAlign::Left,
6358 None,
6359 window,
6360 cx,
6361 )
6362 .log_err()
6363 }) else {
6364 continue;
6365 };
6366
6367 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
6368 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
6369 if is_singleton {
6370 window.set_cursor_style(CursorStyle::IBeam, hitbox);
6371 } else {
6372 window.set_cursor_style(CursorStyle::PointingHand, hitbox);
6373 }
6374 }
6375 }
6376 }
6377
6378 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6379 if layout.display_hunks.is_empty() {
6380 return;
6381 }
6382
6383 let line_height = layout.position_map.line_height;
6384 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6385 for (hunk, hitbox) in &layout.display_hunks {
6386 let hunk_to_paint = match hunk {
6387 DisplayDiffHunk::Folded { .. } => {
6388 let hunk_bounds = Self::diff_hunk_bounds(
6389 &layout.position_map.snapshot,
6390 line_height,
6391 layout.gutter_hitbox.bounds,
6392 hunk,
6393 );
6394 Some((
6395 hunk_bounds,
6396 cx.theme().colors().version_control_modified,
6397 Corners::all(px(0.)),
6398 DiffHunkStatus::modified_none(),
6399 ))
6400 }
6401 DisplayDiffHunk::Unfolded {
6402 status,
6403 display_row_range,
6404 ..
6405 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
6406 DiffHunkStatusKind::Added => (
6407 hunk_hitbox.bounds,
6408 cx.theme().colors().version_control_added,
6409 Corners::all(px(0.)),
6410 *status,
6411 ),
6412 DiffHunkStatusKind::Modified => (
6413 hunk_hitbox.bounds,
6414 cx.theme().colors().version_control_modified,
6415 Corners::all(px(0.)),
6416 *status,
6417 ),
6418 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
6419 hunk_hitbox.bounds,
6420 cx.theme().colors().version_control_deleted,
6421 Corners::all(px(0.)),
6422 *status,
6423 ),
6424 DiffHunkStatusKind::Deleted => (
6425 Bounds::new(
6426 point(
6427 hunk_hitbox.origin.x - hunk_hitbox.size.width,
6428 hunk_hitbox.origin.y,
6429 ),
6430 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
6431 ),
6432 cx.theme().colors().version_control_deleted,
6433 Corners::all(1. * line_height),
6434 *status,
6435 ),
6436 }),
6437 };
6438
6439 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
6440 // Flatten the background color with the editor color to prevent
6441 // elements below transparent hunks from showing through
6442 let flattened_background_color = cx
6443 .theme()
6444 .colors()
6445 .editor_background
6446 .blend(background_color);
6447
6448 if !Self::diff_hunk_hollow(status, cx) {
6449 window.paint_quad(quad(
6450 hunk_bounds,
6451 corner_radii,
6452 flattened_background_color,
6453 Edges::default(),
6454 transparent_black(),
6455 BorderStyle::default(),
6456 ));
6457 } else {
6458 let flattened_unstaged_background_color = cx
6459 .theme()
6460 .colors()
6461 .editor_background
6462 .blend(background_color.opacity(0.3));
6463
6464 window.paint_quad(quad(
6465 hunk_bounds,
6466 corner_radii,
6467 flattened_unstaged_background_color,
6468 Edges::all(px(1.0)),
6469 flattened_background_color,
6470 BorderStyle::Solid,
6471 ));
6472 }
6473 }
6474 }
6475 });
6476 }
6477
6478 fn gutter_strip_width(line_height: Pixels) -> Pixels {
6479 (0.275 * line_height).floor()
6480 }
6481
6482 fn diff_hunk_bounds(
6483 snapshot: &EditorSnapshot,
6484 line_height: Pixels,
6485 gutter_bounds: Bounds<Pixels>,
6486 hunk: &DisplayDiffHunk,
6487 ) -> Bounds<Pixels> {
6488 let scroll_position = snapshot.scroll_position();
6489 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
6490 let gutter_strip_width = Self::gutter_strip_width(line_height);
6491
6492 match hunk {
6493 DisplayDiffHunk::Folded { display_row, .. } => {
6494 let start_y = (display_row.as_f64() * ScrollPixelOffset::from(line_height)
6495 - scroll_top)
6496 .into();
6497 let end_y = start_y + line_height;
6498 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6499 let highlight_size = size(gutter_strip_width, end_y - start_y);
6500 Bounds::new(highlight_origin, highlight_size)
6501 }
6502 DisplayDiffHunk::Unfolded {
6503 display_row_range,
6504 status,
6505 ..
6506 } => {
6507 if status.is_deleted() && display_row_range.is_empty() {
6508 let row = display_row_range.start;
6509
6510 let offset = ScrollPixelOffset::from(line_height / 2.);
6511 let start_y =
6512 (row.as_f64() * ScrollPixelOffset::from(line_height) - offset - scroll_top)
6513 .into();
6514 let end_y = start_y + line_height;
6515
6516 let width = (0.35 * line_height).floor();
6517 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6518 let highlight_size = size(width, end_y - start_y);
6519 Bounds::new(highlight_origin, highlight_size)
6520 } else {
6521 let start_row = display_row_range.start;
6522 let end_row = display_row_range.end;
6523 // If we're in a multibuffer, row range span might include an
6524 // excerpt header, so if we were to draw the marker straight away,
6525 // the hunk might include the rows of that header.
6526 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
6527 // Instead, we simply check whether the range we're dealing with includes
6528 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
6529 let end_row_in_current_excerpt = snapshot
6530 .blocks_in_range(start_row..end_row)
6531 .find_map(|(start_row, block)| {
6532 if matches!(
6533 block,
6534 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
6535 ) {
6536 Some(start_row)
6537 } else {
6538 None
6539 }
6540 })
6541 .unwrap_or(end_row);
6542
6543 let start_y = (start_row.as_f64() * ScrollPixelOffset::from(line_height)
6544 - scroll_top)
6545 .into();
6546 let end_y = Pixels::from(
6547 end_row_in_current_excerpt.as_f64() * ScrollPixelOffset::from(line_height)
6548 - scroll_top,
6549 );
6550
6551 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6552 let highlight_size = size(gutter_strip_width, end_y - start_y);
6553 Bounds::new(highlight_origin, highlight_size)
6554 }
6555 }
6556 }
6557 }
6558
6559 fn paint_gutter_indicators(
6560 &self,
6561 layout: &mut EditorLayout,
6562 window: &mut Window,
6563 cx: &mut App,
6564 ) {
6565 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6566 window.with_element_namespace("crease_toggles", |window| {
6567 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
6568 crease_toggle.paint(window, cx);
6569 }
6570 });
6571
6572 window.with_element_namespace("expand_toggles", |window| {
6573 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
6574 expand_toggle.paint(window, cx);
6575 }
6576 });
6577
6578 for breakpoint in layout.breakpoints.iter_mut() {
6579 breakpoint.paint(window, cx);
6580 }
6581
6582 for test_indicator in layout.test_indicators.iter_mut() {
6583 test_indicator.paint(window, cx);
6584 }
6585
6586 if let Some(diff_review_button) = layout.diff_review_button.as_mut() {
6587 diff_review_button.paint(window, cx);
6588 }
6589 });
6590 }
6591
6592 fn paint_gutter_highlights(
6593 &self,
6594 layout: &mut EditorLayout,
6595 window: &mut Window,
6596 cx: &mut App,
6597 ) {
6598 for (_, hunk_hitbox) in &layout.display_hunks {
6599 if let Some(hunk_hitbox) = hunk_hitbox
6600 && !self
6601 .editor
6602 .read(cx)
6603 .buffer()
6604 .read(cx)
6605 .all_diff_hunks_expanded()
6606 {
6607 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
6608 }
6609 }
6610
6611 let show_git_gutter = layout
6612 .position_map
6613 .snapshot
6614 .show_git_diff_gutter
6615 .unwrap_or_else(|| {
6616 matches!(
6617 ProjectSettings::get_global(cx).git.git_gutter,
6618 GitGutterSetting::TrackedFiles
6619 )
6620 });
6621 if show_git_gutter {
6622 Self::paint_gutter_diff_hunks(layout, window, cx)
6623 }
6624
6625 let highlight_width = 0.275 * layout.position_map.line_height;
6626 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
6627 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6628 for (range, color) in &layout.highlighted_gutter_ranges {
6629 let start_row = if range.start.row() < layout.visible_display_row_range.start {
6630 layout.visible_display_row_range.start - DisplayRow(1)
6631 } else {
6632 range.start.row()
6633 };
6634 let end_row = if range.end.row() > layout.visible_display_row_range.end {
6635 layout.visible_display_row_range.end + DisplayRow(1)
6636 } else {
6637 range.end.row()
6638 };
6639
6640 let start_y = layout.gutter_hitbox.top()
6641 + Pixels::from(
6642 start_row.0 as f64
6643 * ScrollPixelOffset::from(layout.position_map.line_height)
6644 - layout.position_map.scroll_pixel_position.y,
6645 );
6646 let end_y = layout.gutter_hitbox.top()
6647 + Pixels::from(
6648 (end_row.0 + 1) as f64
6649 * ScrollPixelOffset::from(layout.position_map.line_height)
6650 - layout.position_map.scroll_pixel_position.y,
6651 );
6652 let bounds = Bounds::from_corners(
6653 point(layout.gutter_hitbox.left(), start_y),
6654 point(layout.gutter_hitbox.left() + highlight_width, end_y),
6655 );
6656 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
6657 }
6658 });
6659 }
6660
6661 fn paint_blamed_display_rows(
6662 &self,
6663 layout: &mut EditorLayout,
6664 window: &mut Window,
6665 cx: &mut App,
6666 ) {
6667 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
6668 return;
6669 };
6670
6671 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6672 for mut blame_element in blamed_display_rows.into_iter() {
6673 blame_element.paint(window, cx);
6674 }
6675 })
6676 }
6677
6678 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6679 window.with_content_mask(
6680 Some(ContentMask {
6681 bounds: layout.position_map.text_hitbox.bounds,
6682 }),
6683 |window| {
6684 let editor = self.editor.read(cx);
6685 if editor.mouse_cursor_hidden {
6686 window.set_window_cursor_style(CursorStyle::None);
6687 } else if let SelectionDragState::ReadyToDrag {
6688 mouse_down_time, ..
6689 } = &editor.selection_drag_state
6690 {
6691 let drag_and_drop_delay = Duration::from_millis(
6692 EditorSettings::get_global(cx)
6693 .drag_and_drop_selection
6694 .delay
6695 .0,
6696 );
6697 if mouse_down_time.elapsed() >= drag_and_drop_delay {
6698 window.set_cursor_style(
6699 CursorStyle::DragCopy,
6700 &layout.position_map.text_hitbox,
6701 );
6702 }
6703 } else if matches!(
6704 editor.selection_drag_state,
6705 SelectionDragState::Dragging { .. }
6706 ) {
6707 window
6708 .set_cursor_style(CursorStyle::DragCopy, &layout.position_map.text_hitbox);
6709 } else if editor
6710 .hovered_link_state
6711 .as_ref()
6712 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
6713 {
6714 window.set_cursor_style(
6715 CursorStyle::PointingHand,
6716 &layout.position_map.text_hitbox,
6717 );
6718 } else {
6719 window.set_cursor_style(CursorStyle::IBeam, &layout.position_map.text_hitbox);
6720 };
6721
6722 self.paint_lines_background(layout, window, cx);
6723 let invisible_display_ranges = self.paint_highlights(layout, window, cx);
6724 self.paint_document_colors(layout, window);
6725 self.paint_lines(&invisible_display_ranges, layout, window, cx);
6726 self.paint_redactions(layout, window);
6727 self.paint_cursors(layout, window, cx);
6728 self.paint_inline_diagnostics(layout, window, cx);
6729 self.paint_inline_blame(layout, window, cx);
6730 self.paint_inline_code_actions(layout, window, cx);
6731 self.paint_diff_hunk_controls(layout, window, cx);
6732 window.with_element_namespace("crease_trailers", |window| {
6733 for trailer in layout.crease_trailers.iter_mut().flatten() {
6734 trailer.element.paint(window, cx);
6735 }
6736 });
6737 },
6738 )
6739 }
6740
6741 fn paint_highlights(
6742 &mut self,
6743 layout: &mut EditorLayout,
6744 window: &mut Window,
6745 cx: &mut App,
6746 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
6747 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6748 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
6749 let line_end_overshoot = 0.15 * layout.position_map.line_height;
6750 for (range, color) in &layout.highlighted_ranges {
6751 self.paint_highlighted_range(
6752 range.clone(),
6753 true,
6754 *color,
6755 Pixels::ZERO,
6756 line_end_overshoot,
6757 layout,
6758 window,
6759 );
6760 }
6761
6762 let corner_radius = if EditorSettings::get_global(cx).rounded_selection {
6763 0.15 * layout.position_map.line_height
6764 } else {
6765 Pixels::ZERO
6766 };
6767
6768 for (player_color, selections) in &layout.selections {
6769 for selection in selections.iter() {
6770 self.paint_highlighted_range(
6771 selection.range.clone(),
6772 true,
6773 player_color.selection,
6774 corner_radius,
6775 corner_radius * 2.,
6776 layout,
6777 window,
6778 );
6779
6780 if selection.is_local && !selection.range.is_empty() {
6781 invisible_display_ranges.push(selection.range.clone());
6782 }
6783 }
6784 }
6785 invisible_display_ranges
6786 })
6787 }
6788
6789 fn paint_lines(
6790 &mut self,
6791 invisible_display_ranges: &[Range<DisplayPoint>],
6792 layout: &mut EditorLayout,
6793 window: &mut Window,
6794 cx: &mut App,
6795 ) {
6796 let whitespace_setting = self
6797 .editor
6798 .read(cx)
6799 .buffer
6800 .read(cx)
6801 .language_settings(cx)
6802 .show_whitespaces;
6803
6804 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6805 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6806 line_with_invisibles.draw(
6807 layout,
6808 row,
6809 layout.content_origin,
6810 whitespace_setting,
6811 invisible_display_ranges,
6812 window,
6813 cx,
6814 )
6815 }
6816
6817 for line_element in &mut layout.line_elements {
6818 line_element.paint(window, cx);
6819 }
6820 }
6821
6822 fn paint_sticky_headers(
6823 &mut self,
6824 layout: &mut EditorLayout,
6825 window: &mut Window,
6826 cx: &mut App,
6827 ) {
6828 let Some(mut sticky_headers) = layout.sticky_headers.take() else {
6829 return;
6830 };
6831
6832 if sticky_headers.lines.is_empty() {
6833 layout.sticky_headers = Some(sticky_headers);
6834 return;
6835 }
6836
6837 let whitespace_setting = self
6838 .editor
6839 .read(cx)
6840 .buffer
6841 .read(cx)
6842 .language_settings(cx)
6843 .show_whitespaces;
6844 sticky_headers.paint(layout, whitespace_setting, window, cx);
6845
6846 let sticky_header_hitboxes: Vec<Hitbox> = sticky_headers
6847 .lines
6848 .iter()
6849 .map(|line| line.hitbox.clone())
6850 .collect();
6851 let hovered_hitbox = sticky_header_hitboxes
6852 .iter()
6853 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6854
6855 window.on_mouse_event(move |_: &MouseMoveEvent, phase, window, _cx| {
6856 if !phase.bubble() {
6857 return;
6858 }
6859
6860 let current_hover = sticky_header_hitboxes
6861 .iter()
6862 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6863 if hovered_hitbox != current_hover {
6864 window.refresh();
6865 }
6866 });
6867
6868 for (line_index, line) in sticky_headers.lines.iter().enumerate() {
6869 let editor = self.editor.clone();
6870 let hitbox = line.hitbox.clone();
6871 let target_anchor = line.target_anchor;
6872 window.on_mouse_event(move |event: &MouseDownEvent, phase, window, cx| {
6873 if !phase.bubble() {
6874 return;
6875 }
6876
6877 if event.button == MouseButton::Left && hitbox.is_hovered(window) {
6878 editor.update(cx, |editor, cx| {
6879 editor.change_selections(
6880 SelectionEffects::scroll(Autoscroll::top_relative(line_index)),
6881 window,
6882 cx,
6883 |selections| selections.select_ranges([target_anchor..target_anchor]),
6884 );
6885 cx.stop_propagation();
6886 });
6887 }
6888 });
6889 }
6890
6891 let text_bounds = layout.position_map.text_hitbox.bounds;
6892 let border_top = text_bounds.top()
6893 + sticky_headers.lines.last().unwrap().offset
6894 + layout.position_map.line_height;
6895 let separator_height = px(1.);
6896 let border_bounds = Bounds::from_corners(
6897 point(layout.gutter_hitbox.bounds.left(), border_top),
6898 point(text_bounds.right(), border_top + separator_height),
6899 );
6900 window.paint_quad(fill(border_bounds, cx.theme().colors().border_variant));
6901
6902 layout.sticky_headers = Some(sticky_headers);
6903 }
6904
6905 fn paint_lines_background(
6906 &mut self,
6907 layout: &mut EditorLayout,
6908 window: &mut Window,
6909 cx: &mut App,
6910 ) {
6911 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6912 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6913 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
6914 }
6915 }
6916
6917 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
6918 if layout.redacted_ranges.is_empty() {
6919 return;
6920 }
6921
6922 let line_end_overshoot = layout.line_end_overshoot();
6923
6924 // A softer than perfect black
6925 let redaction_color = gpui::rgb(0x0e1111);
6926
6927 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6928 for range in layout.redacted_ranges.iter() {
6929 self.paint_highlighted_range(
6930 range.clone(),
6931 true,
6932 redaction_color.into(),
6933 Pixels::ZERO,
6934 line_end_overshoot,
6935 layout,
6936 window,
6937 );
6938 }
6939 });
6940 }
6941
6942 fn paint_document_colors(&self, layout: &mut EditorLayout, window: &mut Window) {
6943 let Some((colors_render_mode, image_colors)) = &layout.document_colors else {
6944 return;
6945 };
6946 if image_colors.is_empty()
6947 || colors_render_mode == &DocumentColorsRenderMode::None
6948 || colors_render_mode == &DocumentColorsRenderMode::Inlay
6949 {
6950 return;
6951 }
6952
6953 let line_end_overshoot = layout.line_end_overshoot();
6954
6955 for (range, color) in image_colors {
6956 match colors_render_mode {
6957 DocumentColorsRenderMode::Inlay | DocumentColorsRenderMode::None => return,
6958 DocumentColorsRenderMode::Background => {
6959 self.paint_highlighted_range(
6960 range.clone(),
6961 true,
6962 *color,
6963 Pixels::ZERO,
6964 line_end_overshoot,
6965 layout,
6966 window,
6967 );
6968 }
6969 DocumentColorsRenderMode::Border => {
6970 self.paint_highlighted_range(
6971 range.clone(),
6972 false,
6973 *color,
6974 Pixels::ZERO,
6975 line_end_overshoot,
6976 layout,
6977 window,
6978 );
6979 }
6980 }
6981 }
6982 }
6983
6984 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6985 for cursor in &mut layout.visible_cursors {
6986 cursor.paint(layout.content_origin, window, cx);
6987 }
6988 }
6989
6990 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6991 let Some(scrollbars_layout) = layout.scrollbars_layout.take() else {
6992 return;
6993 };
6994 let any_scrollbar_dragged = self.editor.read(cx).scroll_manager.any_scrollbar_dragged();
6995
6996 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
6997 let hitbox = &scrollbar_layout.hitbox;
6998 if scrollbars_layout.visible {
6999 let scrollbar_edges = match axis {
7000 ScrollbarAxis::Horizontal => Edges {
7001 top: Pixels::ZERO,
7002 right: Pixels::ZERO,
7003 bottom: Pixels::ZERO,
7004 left: Pixels::ZERO,
7005 },
7006 ScrollbarAxis::Vertical => Edges {
7007 top: Pixels::ZERO,
7008 right: Pixels::ZERO,
7009 bottom: Pixels::ZERO,
7010 left: ScrollbarLayout::BORDER_WIDTH,
7011 },
7012 };
7013
7014 window.paint_layer(hitbox.bounds, |window| {
7015 window.paint_quad(quad(
7016 hitbox.bounds,
7017 Corners::default(),
7018 cx.theme().colors().scrollbar_track_background,
7019 scrollbar_edges,
7020 cx.theme().colors().scrollbar_track_border,
7021 BorderStyle::Solid,
7022 ));
7023
7024 if axis == ScrollbarAxis::Vertical {
7025 let fast_markers =
7026 self.collect_fast_scrollbar_markers(layout, scrollbar_layout, cx);
7027 // Refresh slow scrollbar markers in the background. Below, we
7028 // paint whatever markers have already been computed.
7029 self.refresh_slow_scrollbar_markers(layout, scrollbar_layout, window, cx);
7030
7031 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
7032 for marker in markers.iter().chain(&fast_markers) {
7033 let mut marker = marker.clone();
7034 marker.bounds.origin += hitbox.origin;
7035 window.paint_quad(marker);
7036 }
7037 }
7038
7039 if let Some(thumb_bounds) = scrollbar_layout.thumb_bounds {
7040 let scrollbar_thumb_color = match scrollbar_layout.thumb_state {
7041 ScrollbarThumbState::Dragging => {
7042 cx.theme().colors().scrollbar_thumb_active_background
7043 }
7044 ScrollbarThumbState::Hovered => {
7045 cx.theme().colors().scrollbar_thumb_hover_background
7046 }
7047 ScrollbarThumbState::Idle => {
7048 cx.theme().colors().scrollbar_thumb_background
7049 }
7050 };
7051 window.paint_quad(quad(
7052 thumb_bounds,
7053 Corners::default(),
7054 scrollbar_thumb_color,
7055 scrollbar_edges,
7056 cx.theme().colors().scrollbar_thumb_border,
7057 BorderStyle::Solid,
7058 ));
7059
7060 if any_scrollbar_dragged {
7061 window.set_window_cursor_style(CursorStyle::Arrow);
7062 } else {
7063 window.set_cursor_style(CursorStyle::Arrow, hitbox);
7064 }
7065 }
7066 })
7067 }
7068 }
7069
7070 window.on_mouse_event({
7071 let editor = self.editor.clone();
7072 let scrollbars_layout = scrollbars_layout.clone();
7073
7074 let mut mouse_position = window.mouse_position();
7075 move |event: &MouseMoveEvent, phase, window, cx| {
7076 if phase == DispatchPhase::Capture {
7077 return;
7078 }
7079
7080 editor.update(cx, |editor, cx| {
7081 if let Some((scrollbar_layout, axis)) = event
7082 .pressed_button
7083 .filter(|button| *button == MouseButton::Left)
7084 .and(editor.scroll_manager.dragging_scrollbar_axis())
7085 .and_then(|axis| {
7086 scrollbars_layout
7087 .iter_scrollbars()
7088 .find(|(_, a)| *a == axis)
7089 })
7090 {
7091 let ScrollbarLayout {
7092 hitbox,
7093 text_unit_size,
7094 ..
7095 } = scrollbar_layout;
7096
7097 let old_position = mouse_position.along(axis);
7098 let new_position = event.position.along(axis);
7099 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
7100 .contains(&old_position)
7101 {
7102 let position = editor.scroll_position(cx).apply_along(axis, |p| {
7103 (p + ScrollOffset::from(
7104 (new_position - old_position) / *text_unit_size,
7105 ))
7106 .max(0.)
7107 });
7108 editor.set_scroll_position(position, window, cx);
7109 }
7110
7111 editor.scroll_manager.show_scrollbars(window, cx);
7112 cx.stop_propagation();
7113 } else if let Some((layout, axis)) = scrollbars_layout
7114 .get_hovered_axis(window)
7115 .filter(|_| !event.dragging())
7116 {
7117 if layout.thumb_hovered(&event.position) {
7118 editor
7119 .scroll_manager
7120 .set_hovered_scroll_thumb_axis(axis, cx);
7121 } else {
7122 editor.scroll_manager.reset_scrollbar_state(cx);
7123 }
7124
7125 editor.scroll_manager.show_scrollbars(window, cx);
7126 } else {
7127 editor.scroll_manager.reset_scrollbar_state(cx);
7128 }
7129
7130 mouse_position = event.position;
7131 })
7132 }
7133 });
7134
7135 if any_scrollbar_dragged {
7136 window.on_mouse_event({
7137 let editor = self.editor.clone();
7138 move |_: &MouseUpEvent, phase, window, cx| {
7139 if phase == DispatchPhase::Capture {
7140 return;
7141 }
7142
7143 editor.update(cx, |editor, cx| {
7144 if let Some((_, axis)) = scrollbars_layout.get_hovered_axis(window) {
7145 editor
7146 .scroll_manager
7147 .set_hovered_scroll_thumb_axis(axis, cx);
7148 } else {
7149 editor.scroll_manager.reset_scrollbar_state(cx);
7150 }
7151 cx.stop_propagation();
7152 });
7153 }
7154 });
7155 } else {
7156 window.on_mouse_event({
7157 let editor = self.editor.clone();
7158
7159 move |event: &MouseDownEvent, phase, window, cx| {
7160 if phase == DispatchPhase::Capture {
7161 return;
7162 }
7163 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
7164 else {
7165 return;
7166 };
7167
7168 let ScrollbarLayout {
7169 hitbox,
7170 visible_range,
7171 text_unit_size,
7172 thumb_bounds,
7173 ..
7174 } = scrollbar_layout;
7175
7176 let Some(thumb_bounds) = thumb_bounds else {
7177 return;
7178 };
7179
7180 editor.update(cx, |editor, cx| {
7181 editor
7182 .scroll_manager
7183 .set_dragged_scroll_thumb_axis(axis, cx);
7184
7185 let event_position = event.position.along(axis);
7186
7187 if event_position < thumb_bounds.origin.along(axis)
7188 || thumb_bounds.bottom_right().along(axis) < event_position
7189 {
7190 let center_position = ((event_position - hitbox.origin.along(axis))
7191 / *text_unit_size)
7192 .round() as u32;
7193 let start_position = center_position.saturating_sub(
7194 (visible_range.end - visible_range.start) as u32 / 2,
7195 );
7196
7197 let position = editor
7198 .scroll_position(cx)
7199 .apply_along(axis, |_| start_position as ScrollOffset);
7200
7201 editor.set_scroll_position(position, window, cx);
7202 } else {
7203 editor.scroll_manager.show_scrollbars(window, cx);
7204 }
7205
7206 cx.stop_propagation();
7207 });
7208 }
7209 });
7210 }
7211 }
7212
7213 fn collect_fast_scrollbar_markers(
7214 &self,
7215 layout: &EditorLayout,
7216 scrollbar_layout: &ScrollbarLayout,
7217 cx: &mut App,
7218 ) -> Vec<PaintQuad> {
7219 const LIMIT: usize = 100;
7220 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
7221 return vec![];
7222 }
7223 let cursor_ranges = layout
7224 .cursors
7225 .iter()
7226 .map(|(point, color)| ColoredRange {
7227 start: point.row(),
7228 end: point.row(),
7229 color: *color,
7230 })
7231 .collect_vec();
7232 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
7233 }
7234
7235 fn refresh_slow_scrollbar_markers(
7236 &self,
7237 layout: &EditorLayout,
7238 scrollbar_layout: &ScrollbarLayout,
7239 window: &mut Window,
7240 cx: &mut App,
7241 ) {
7242 self.editor.update(cx, |editor, cx| {
7243 if editor.buffer_kind(cx) != ItemBufferKind::Singleton
7244 || !editor
7245 .scrollbar_marker_state
7246 .should_refresh(scrollbar_layout.hitbox.size)
7247 {
7248 return;
7249 }
7250
7251 let scrollbar_layout = scrollbar_layout.clone();
7252 let background_highlights = editor.background_highlights.clone();
7253 let snapshot = layout.position_map.snapshot.clone();
7254 let theme = cx.theme().clone();
7255 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
7256
7257 editor.scrollbar_marker_state.dirty = false;
7258 editor.scrollbar_marker_state.pending_refresh =
7259 Some(cx.spawn_in(window, async move |editor, cx| {
7260 let scrollbar_size = scrollbar_layout.hitbox.size;
7261 let scrollbar_markers = cx
7262 .background_spawn(async move {
7263 let max_point = snapshot.display_snapshot.buffer_snapshot().max_point();
7264 let mut marker_quads = Vec::new();
7265 if scrollbar_settings.git_diff {
7266 let marker_row_ranges =
7267 snapshot.buffer_snapshot().diff_hunks().map(|hunk| {
7268 let start_display_row =
7269 MultiBufferPoint::new(hunk.row_range.start.0, 0)
7270 .to_display_point(&snapshot.display_snapshot)
7271 .row();
7272 let mut end_display_row =
7273 MultiBufferPoint::new(hunk.row_range.end.0, 0)
7274 .to_display_point(&snapshot.display_snapshot)
7275 .row();
7276 if end_display_row != start_display_row {
7277 end_display_row.0 -= 1;
7278 }
7279 let color = match &hunk.status().kind {
7280 DiffHunkStatusKind::Added => {
7281 theme.colors().version_control_added
7282 }
7283 DiffHunkStatusKind::Modified => {
7284 theme.colors().version_control_modified
7285 }
7286 DiffHunkStatusKind::Deleted => {
7287 theme.colors().version_control_deleted
7288 }
7289 };
7290 ColoredRange {
7291 start: start_display_row,
7292 end: end_display_row,
7293 color,
7294 }
7295 });
7296
7297 marker_quads.extend(
7298 scrollbar_layout
7299 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
7300 );
7301 }
7302
7303 for (background_highlight_id, (_, background_ranges)) in
7304 background_highlights.iter()
7305 {
7306 let is_search_highlights = *background_highlight_id
7307 == HighlightKey::Type(TypeId::of::<BufferSearchHighlights>());
7308 let is_text_highlights = *background_highlight_id
7309 == HighlightKey::Type(TypeId::of::<SelectedTextHighlight>());
7310 let is_symbol_occurrences = *background_highlight_id
7311 == HighlightKey::Type(TypeId::of::<DocumentHighlightRead>())
7312 || *background_highlight_id
7313 == HighlightKey::Type(
7314 TypeId::of::<DocumentHighlightWrite>(),
7315 );
7316 if (is_search_highlights && scrollbar_settings.search_results)
7317 || (is_text_highlights && scrollbar_settings.selected_text)
7318 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
7319 {
7320 let mut color = theme.status().info;
7321 if is_symbol_occurrences {
7322 color.fade_out(0.5);
7323 }
7324 let marker_row_ranges = background_ranges.iter().map(|range| {
7325 let display_start = range
7326 .start
7327 .to_display_point(&snapshot.display_snapshot);
7328 let display_end =
7329 range.end.to_display_point(&snapshot.display_snapshot);
7330 ColoredRange {
7331 start: display_start.row(),
7332 end: display_end.row(),
7333 color,
7334 }
7335 });
7336 marker_quads.extend(
7337 scrollbar_layout
7338 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
7339 );
7340 }
7341 }
7342
7343 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
7344 let diagnostics = snapshot
7345 .buffer_snapshot()
7346 .diagnostics_in_range::<Point>(Point::zero()..max_point)
7347 // Don't show diagnostics the user doesn't care about
7348 .filter(|diagnostic| {
7349 match (
7350 scrollbar_settings.diagnostics,
7351 diagnostic.diagnostic.severity,
7352 ) {
7353 (ScrollbarDiagnostics::All, _) => true,
7354 (
7355 ScrollbarDiagnostics::Error,
7356 lsp::DiagnosticSeverity::ERROR,
7357 ) => true,
7358 (
7359 ScrollbarDiagnostics::Warning,
7360 lsp::DiagnosticSeverity::ERROR
7361 | lsp::DiagnosticSeverity::WARNING,
7362 ) => true,
7363 (
7364 ScrollbarDiagnostics::Information,
7365 lsp::DiagnosticSeverity::ERROR
7366 | lsp::DiagnosticSeverity::WARNING
7367 | lsp::DiagnosticSeverity::INFORMATION,
7368 ) => true,
7369 (_, _) => false,
7370 }
7371 })
7372 // We want to sort by severity, in order to paint the most severe diagnostics last.
7373 .sorted_by_key(|diagnostic| {
7374 std::cmp::Reverse(diagnostic.diagnostic.severity)
7375 });
7376
7377 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
7378 let start_display = diagnostic
7379 .range
7380 .start
7381 .to_display_point(&snapshot.display_snapshot);
7382 let end_display = diagnostic
7383 .range
7384 .end
7385 .to_display_point(&snapshot.display_snapshot);
7386 let color = match diagnostic.diagnostic.severity {
7387 lsp::DiagnosticSeverity::ERROR => theme.status().error,
7388 lsp::DiagnosticSeverity::WARNING => theme.status().warning,
7389 lsp::DiagnosticSeverity::INFORMATION => theme.status().info,
7390 _ => theme.status().hint,
7391 };
7392 ColoredRange {
7393 start: start_display.row(),
7394 end: end_display.row(),
7395 color,
7396 }
7397 });
7398 marker_quads.extend(
7399 scrollbar_layout
7400 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
7401 );
7402 }
7403
7404 Arc::from(marker_quads)
7405 })
7406 .await;
7407
7408 editor.update(cx, |editor, cx| {
7409 editor.scrollbar_marker_state.markers = scrollbar_markers;
7410 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
7411 editor.scrollbar_marker_state.pending_refresh = None;
7412 cx.notify();
7413 })?;
7414
7415 Ok(())
7416 }));
7417 });
7418 }
7419
7420 fn paint_highlighted_range(
7421 &self,
7422 range: Range<DisplayPoint>,
7423 fill: bool,
7424 color: Hsla,
7425 corner_radius: Pixels,
7426 line_end_overshoot: Pixels,
7427 layout: &EditorLayout,
7428 window: &mut Window,
7429 ) {
7430 let start_row = layout.visible_display_row_range.start;
7431 let end_row = layout.visible_display_row_range.end;
7432 if range.start != range.end {
7433 let row_range = if range.end.column() == 0 {
7434 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
7435 } else {
7436 cmp::max(range.start.row(), start_row)
7437 ..cmp::min(range.end.row().next_row(), end_row)
7438 };
7439
7440 let highlighted_range = HighlightedRange {
7441 color,
7442 line_height: layout.position_map.line_height,
7443 corner_radius,
7444 start_y: layout.content_origin.y
7445 + Pixels::from(
7446 (row_range.start.as_f64() - layout.position_map.scroll_position.y)
7447 * ScrollOffset::from(layout.position_map.line_height),
7448 ),
7449 lines: row_range
7450 .iter_rows()
7451 .map(|row| {
7452 let line_layout =
7453 &layout.position_map.line_layouts[row.minus(start_row) as usize];
7454 let alignment_offset =
7455 line_layout.alignment_offset(layout.text_align, layout.content_width);
7456 HighlightedRangeLine {
7457 start_x: if row == range.start.row() {
7458 layout.content_origin.x
7459 + Pixels::from(
7460 ScrollPixelOffset::from(
7461 line_layout.x_for_index(range.start.column() as usize)
7462 + alignment_offset,
7463 ) - layout.position_map.scroll_pixel_position.x,
7464 )
7465 } else {
7466 layout.content_origin.x + alignment_offset
7467 - Pixels::from(layout.position_map.scroll_pixel_position.x)
7468 },
7469 end_x: if row == range.end.row() {
7470 layout.content_origin.x
7471 + Pixels::from(
7472 ScrollPixelOffset::from(
7473 line_layout.x_for_index(range.end.column() as usize)
7474 + alignment_offset,
7475 ) - layout.position_map.scroll_pixel_position.x,
7476 )
7477 } else {
7478 Pixels::from(
7479 ScrollPixelOffset::from(
7480 layout.content_origin.x
7481 + line_layout.width
7482 + alignment_offset
7483 + line_end_overshoot,
7484 ) - layout.position_map.scroll_pixel_position.x,
7485 )
7486 },
7487 }
7488 })
7489 .collect(),
7490 };
7491
7492 highlighted_range.paint(fill, layout.position_map.text_hitbox.bounds, window);
7493 }
7494 }
7495
7496 fn paint_inline_diagnostics(
7497 &mut self,
7498 layout: &mut EditorLayout,
7499 window: &mut Window,
7500 cx: &mut App,
7501 ) {
7502 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
7503 inline_diagnostic.1.paint(window, cx);
7504 }
7505 }
7506
7507 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7508 if let Some(mut blame_layout) = layout.inline_blame_layout.take() {
7509 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7510 blame_layout.element.paint(window, cx);
7511 })
7512 }
7513 }
7514
7515 fn paint_inline_code_actions(
7516 &mut self,
7517 layout: &mut EditorLayout,
7518 window: &mut Window,
7519 cx: &mut App,
7520 ) {
7521 if let Some(mut inline_code_actions) = layout.inline_code_actions.take() {
7522 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7523 inline_code_actions.paint(window, cx);
7524 })
7525 }
7526 }
7527
7528 fn paint_diff_hunk_controls(
7529 &mut self,
7530 layout: &mut EditorLayout,
7531 window: &mut Window,
7532 cx: &mut App,
7533 ) {
7534 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
7535 diff_hunk_control.paint(window, cx);
7536 }
7537 }
7538
7539 fn paint_minimap(&self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7540 if let Some(mut layout) = layout.minimap.take() {
7541 let minimap_hitbox = layout.thumb_layout.hitbox.clone();
7542 let dragging_minimap = self.editor.read(cx).scroll_manager.is_dragging_minimap();
7543
7544 window.paint_layer(layout.thumb_layout.hitbox.bounds, |window| {
7545 window.with_element_namespace("minimap", |window| {
7546 layout.minimap.paint(window, cx);
7547 if let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds {
7548 let minimap_thumb_color = match layout.thumb_layout.thumb_state {
7549 ScrollbarThumbState::Idle => {
7550 cx.theme().colors().minimap_thumb_background
7551 }
7552 ScrollbarThumbState::Hovered => {
7553 cx.theme().colors().minimap_thumb_hover_background
7554 }
7555 ScrollbarThumbState::Dragging => {
7556 cx.theme().colors().minimap_thumb_active_background
7557 }
7558 };
7559 let minimap_thumb_border = match layout.thumb_border_style {
7560 MinimapThumbBorder::Full => Edges::all(ScrollbarLayout::BORDER_WIDTH),
7561 MinimapThumbBorder::LeftOnly => Edges {
7562 left: ScrollbarLayout::BORDER_WIDTH,
7563 ..Default::default()
7564 },
7565 MinimapThumbBorder::LeftOpen => Edges {
7566 right: ScrollbarLayout::BORDER_WIDTH,
7567 top: ScrollbarLayout::BORDER_WIDTH,
7568 bottom: ScrollbarLayout::BORDER_WIDTH,
7569 ..Default::default()
7570 },
7571 MinimapThumbBorder::RightOpen => Edges {
7572 left: ScrollbarLayout::BORDER_WIDTH,
7573 top: ScrollbarLayout::BORDER_WIDTH,
7574 bottom: ScrollbarLayout::BORDER_WIDTH,
7575 ..Default::default()
7576 },
7577 MinimapThumbBorder::None => Default::default(),
7578 };
7579
7580 window.paint_layer(minimap_hitbox.bounds, |window| {
7581 window.paint_quad(quad(
7582 thumb_bounds,
7583 Corners::default(),
7584 minimap_thumb_color,
7585 minimap_thumb_border,
7586 cx.theme().colors().minimap_thumb_border,
7587 BorderStyle::Solid,
7588 ));
7589 });
7590 }
7591 });
7592 });
7593
7594 if dragging_minimap {
7595 window.set_window_cursor_style(CursorStyle::Arrow);
7596 } else {
7597 window.set_cursor_style(CursorStyle::Arrow, &minimap_hitbox);
7598 }
7599
7600 let minimap_axis = ScrollbarAxis::Vertical;
7601 let pixels_per_line = Pixels::from(
7602 ScrollPixelOffset::from(minimap_hitbox.size.height) / layout.max_scroll_top,
7603 )
7604 .min(layout.minimap_line_height);
7605
7606 let mut mouse_position = window.mouse_position();
7607
7608 window.on_mouse_event({
7609 let editor = self.editor.clone();
7610
7611 let minimap_hitbox = minimap_hitbox.clone();
7612
7613 move |event: &MouseMoveEvent, phase, window, cx| {
7614 if phase == DispatchPhase::Capture {
7615 return;
7616 }
7617
7618 editor.update(cx, |editor, cx| {
7619 if event.pressed_button == Some(MouseButton::Left)
7620 && editor.scroll_manager.is_dragging_minimap()
7621 {
7622 let old_position = mouse_position.along(minimap_axis);
7623 let new_position = event.position.along(minimap_axis);
7624 if (minimap_hitbox.origin.along(minimap_axis)
7625 ..minimap_hitbox.bottom_right().along(minimap_axis))
7626 .contains(&old_position)
7627 {
7628 let position =
7629 editor.scroll_position(cx).apply_along(minimap_axis, |p| {
7630 (p + ScrollPixelOffset::from(
7631 (new_position - old_position) / pixels_per_line,
7632 ))
7633 .max(0.)
7634 });
7635
7636 editor.set_scroll_position(position, window, cx);
7637 }
7638 cx.stop_propagation();
7639 } else if minimap_hitbox.is_hovered(window) {
7640 editor.scroll_manager.set_is_hovering_minimap_thumb(
7641 !event.dragging()
7642 && layout
7643 .thumb_layout
7644 .thumb_bounds
7645 .is_some_and(|bounds| bounds.contains(&event.position)),
7646 cx,
7647 );
7648
7649 // Stop hover events from propagating to the
7650 // underlying editor if the minimap hitbox is hovered
7651 if !event.dragging() {
7652 cx.stop_propagation();
7653 }
7654 } else {
7655 editor.scroll_manager.hide_minimap_thumb(cx);
7656 }
7657 mouse_position = event.position;
7658 });
7659 }
7660 });
7661
7662 if dragging_minimap {
7663 window.on_mouse_event({
7664 let editor = self.editor.clone();
7665 move |event: &MouseUpEvent, phase, window, cx| {
7666 if phase == DispatchPhase::Capture {
7667 return;
7668 }
7669
7670 editor.update(cx, |editor, cx| {
7671 if minimap_hitbox.is_hovered(window) {
7672 editor.scroll_manager.set_is_hovering_minimap_thumb(
7673 layout
7674 .thumb_layout
7675 .thumb_bounds
7676 .is_some_and(|bounds| bounds.contains(&event.position)),
7677 cx,
7678 );
7679 } else {
7680 editor.scroll_manager.hide_minimap_thumb(cx);
7681 }
7682 cx.stop_propagation();
7683 });
7684 }
7685 });
7686 } else {
7687 window.on_mouse_event({
7688 let editor = self.editor.clone();
7689
7690 move |event: &MouseDownEvent, phase, window, cx| {
7691 if phase == DispatchPhase::Capture || !minimap_hitbox.is_hovered(window) {
7692 return;
7693 }
7694
7695 let event_position = event.position;
7696
7697 let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds else {
7698 return;
7699 };
7700
7701 editor.update(cx, |editor, cx| {
7702 if !thumb_bounds.contains(&event_position) {
7703 let click_position =
7704 event_position.relative_to(&minimap_hitbox.origin).y;
7705
7706 let top_position = (click_position
7707 - thumb_bounds.size.along(minimap_axis) / 2.0)
7708 .max(Pixels::ZERO);
7709
7710 let scroll_offset = (layout.minimap_scroll_top
7711 + ScrollPixelOffset::from(
7712 top_position / layout.minimap_line_height,
7713 ))
7714 .min(layout.max_scroll_top);
7715
7716 let scroll_position = editor
7717 .scroll_position(cx)
7718 .apply_along(minimap_axis, |_| scroll_offset);
7719 editor.set_scroll_position(scroll_position, window, cx);
7720 }
7721
7722 editor.scroll_manager.set_is_dragging_minimap(cx);
7723 cx.stop_propagation();
7724 });
7725 }
7726 });
7727 }
7728 }
7729 }
7730
7731 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7732 for mut block in layout.blocks.drain(..) {
7733 if block.overlaps_gutter {
7734 block.element.paint(window, cx);
7735 } else {
7736 let mut bounds = layout.hitbox.bounds;
7737 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
7738 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7739 block.element.paint(window, cx);
7740 })
7741 }
7742 }
7743 }
7744
7745 fn paint_edit_prediction_popover(
7746 &mut self,
7747 layout: &mut EditorLayout,
7748 window: &mut Window,
7749 cx: &mut App,
7750 ) {
7751 if let Some(edit_prediction_popover) = layout.edit_prediction_popover.as_mut() {
7752 edit_prediction_popover.paint(window, cx);
7753 }
7754 }
7755
7756 fn paint_mouse_context_menu(
7757 &mut self,
7758 layout: &mut EditorLayout,
7759 window: &mut Window,
7760 cx: &mut App,
7761 ) {
7762 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
7763 mouse_context_menu.paint(window, cx);
7764 }
7765 }
7766
7767 fn paint_scroll_wheel_listener(
7768 &mut self,
7769 layout: &EditorLayout,
7770 window: &mut Window,
7771 cx: &mut App,
7772 ) {
7773 window.on_mouse_event({
7774 let position_map = layout.position_map.clone();
7775 let editor = self.editor.clone();
7776 let hitbox = layout.hitbox.clone();
7777 let mut delta = ScrollDelta::default();
7778
7779 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
7780 // accidentally turn off their scrolling.
7781 let base_scroll_sensitivity =
7782 EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
7783
7784 // Use a minimum fast_scroll_sensitivity for same reason above
7785 let fast_scroll_sensitivity = EditorSettings::get_global(cx)
7786 .fast_scroll_sensitivity
7787 .max(0.01);
7788
7789 move |event: &ScrollWheelEvent, phase, window, cx| {
7790 let scroll_sensitivity = {
7791 if event.modifiers.alt {
7792 fast_scroll_sensitivity
7793 } else {
7794 base_scroll_sensitivity
7795 }
7796 };
7797
7798 if phase == DispatchPhase::Bubble && hitbox.should_handle_scroll(window) {
7799 delta = delta.coalesce(event.delta);
7800 editor.update(cx, |editor, cx| {
7801 let position_map: &PositionMap = &position_map;
7802
7803 let line_height = position_map.line_height;
7804 let max_glyph_advance = position_map.em_advance;
7805 let (delta, axis) = match delta {
7806 gpui::ScrollDelta::Pixels(mut pixels) => {
7807 //Trackpad
7808 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
7809 (pixels, axis)
7810 }
7811
7812 gpui::ScrollDelta::Lines(lines) => {
7813 //Not trackpad
7814 let pixels =
7815 point(lines.x * max_glyph_advance, lines.y * line_height);
7816 (pixels, None)
7817 }
7818 };
7819
7820 let current_scroll_position = position_map.snapshot.scroll_position();
7821 let x = (current_scroll_position.x
7822 * ScrollPixelOffset::from(max_glyph_advance)
7823 - ScrollPixelOffset::from(delta.x * scroll_sensitivity))
7824 / ScrollPixelOffset::from(max_glyph_advance);
7825 let y = (current_scroll_position.y * ScrollPixelOffset::from(line_height)
7826 - ScrollPixelOffset::from(delta.y * scroll_sensitivity))
7827 / ScrollPixelOffset::from(line_height);
7828 let mut scroll_position =
7829 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
7830 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
7831 if forbid_vertical_scroll {
7832 scroll_position.y = current_scroll_position.y;
7833 }
7834
7835 if scroll_position != current_scroll_position {
7836 editor.scroll(scroll_position, axis, window, cx);
7837 cx.stop_propagation();
7838 } else if y < 0. {
7839 // Due to clamping, we may fail to detect cases of overscroll to the top;
7840 // We want the scroll manager to get an update in such cases and detect the change of direction
7841 // on the next frame.
7842 cx.notify();
7843 }
7844 });
7845 }
7846 }
7847 });
7848 }
7849
7850 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
7851 if layout.mode.is_minimap() {
7852 return;
7853 }
7854
7855 self.paint_scroll_wheel_listener(layout, window, cx);
7856
7857 window.on_mouse_event({
7858 let position_map = layout.position_map.clone();
7859 let editor = self.editor.clone();
7860 let line_numbers = layout.line_numbers.clone();
7861
7862 move |event: &MouseDownEvent, phase, window, cx| {
7863 if phase == DispatchPhase::Bubble {
7864 match event.button {
7865 MouseButton::Left => editor.update(cx, |editor, cx| {
7866 let pending_mouse_down = editor
7867 .pending_mouse_down
7868 .get_or_insert_with(Default::default)
7869 .clone();
7870
7871 *pending_mouse_down.borrow_mut() = Some(event.clone());
7872
7873 Self::mouse_left_down(
7874 editor,
7875 event,
7876 &position_map,
7877 line_numbers.as_ref(),
7878 window,
7879 cx,
7880 );
7881 }),
7882 MouseButton::Right => editor.update(cx, |editor, cx| {
7883 Self::mouse_right_down(editor, event, &position_map, window, cx);
7884 }),
7885 MouseButton::Middle => editor.update(cx, |editor, cx| {
7886 Self::mouse_middle_down(editor, event, &position_map, window, cx);
7887 }),
7888 _ => {}
7889 };
7890 }
7891 }
7892 });
7893
7894 window.on_mouse_event({
7895 let editor = self.editor.clone();
7896 let position_map = layout.position_map.clone();
7897
7898 move |event: &MouseUpEvent, phase, window, cx| {
7899 if phase == DispatchPhase::Bubble {
7900 editor.update(cx, |editor, cx| {
7901 Self::mouse_up(editor, event, &position_map, window, cx)
7902 });
7903 }
7904 }
7905 });
7906
7907 window.on_mouse_event({
7908 let editor = self.editor.clone();
7909 let position_map = layout.position_map.clone();
7910 let mut captured_mouse_down = None;
7911
7912 move |event: &MouseUpEvent, phase, window, cx| match phase {
7913 // Clear the pending mouse down during the capture phase,
7914 // so that it happens even if another event handler stops
7915 // propagation.
7916 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
7917 let pending_mouse_down = editor
7918 .pending_mouse_down
7919 .get_or_insert_with(Default::default)
7920 .clone();
7921
7922 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
7923 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
7924 captured_mouse_down = pending_mouse_down.take();
7925 window.refresh();
7926 }
7927 }),
7928 // Fire click handlers during the bubble phase.
7929 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
7930 if let Some(mouse_down) = captured_mouse_down.take() {
7931 let event = ClickEvent::Mouse(MouseClickEvent {
7932 down: mouse_down,
7933 up: event.clone(),
7934 });
7935 Self::click(editor, &event, &position_map, window, cx);
7936 }
7937 }),
7938 }
7939 });
7940
7941 window.on_mouse_event({
7942 let position_map = layout.position_map.clone();
7943 let editor = self.editor.clone();
7944
7945 move |event: &MousePressureEvent, phase, window, cx| {
7946 if phase == DispatchPhase::Bubble {
7947 editor.update(cx, |editor, cx| {
7948 Self::pressure_click(editor, &event, &position_map, window, cx);
7949 })
7950 }
7951 }
7952 });
7953
7954 window.on_mouse_event({
7955 let position_map = layout.position_map.clone();
7956 let editor = self.editor.clone();
7957
7958 move |event: &MouseMoveEvent, phase, window, cx| {
7959 if phase == DispatchPhase::Bubble {
7960 editor.update(cx, |editor, cx| {
7961 if editor.hover_state.focused(window, cx) {
7962 return;
7963 }
7964 if event.pressed_button == Some(MouseButton::Left)
7965 || event.pressed_button == Some(MouseButton::Middle)
7966 {
7967 Self::mouse_dragged(editor, event, &position_map, window, cx)
7968 }
7969
7970 Self::mouse_moved(editor, event, &position_map, window, cx)
7971 });
7972 }
7973 }
7974 });
7975 }
7976
7977 fn shape_line_number(
7978 &self,
7979 text: SharedString,
7980 color: Hsla,
7981 window: &mut Window,
7982 ) -> ShapedLine {
7983 let run = TextRun {
7984 len: text.len(),
7985 font: self.style.text.font(),
7986 color,
7987 ..Default::default()
7988 };
7989 window.text_system().shape_line(
7990 text,
7991 self.style.text.font_size.to_pixels(window.rem_size()),
7992 &[run],
7993 None,
7994 )
7995 }
7996
7997 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
7998 let unstaged = status.has_secondary_hunk();
7999 let unstaged_hollow = matches!(
8000 ProjectSettings::get_global(cx).git.hunk_style,
8001 GitHunkStyleSetting::UnstagedHollow
8002 );
8003
8004 unstaged == unstaged_hollow
8005 }
8006
8007 #[cfg(debug_assertions)]
8008 fn layout_debug_ranges(
8009 selections: &mut Vec<(PlayerColor, Vec<SelectionLayout>)>,
8010 anchor_range: Range<Anchor>,
8011 display_snapshot: &DisplaySnapshot,
8012 cx: &App,
8013 ) {
8014 let theme = cx.theme();
8015 text::debug::GlobalDebugRanges::with_locked(|debug_ranges| {
8016 if debug_ranges.ranges.is_empty() {
8017 return;
8018 }
8019 let buffer_snapshot = &display_snapshot.buffer_snapshot();
8020 for (buffer, buffer_range, excerpt_id) in
8021 buffer_snapshot.range_to_buffer_ranges(anchor_range)
8022 {
8023 let buffer_range =
8024 buffer.anchor_after(buffer_range.start)..buffer.anchor_before(buffer_range.end);
8025 selections.extend(debug_ranges.ranges.iter().flat_map(|debug_range| {
8026 let player_color = theme
8027 .players()
8028 .color_for_participant(debug_range.occurrence_index as u32 + 1);
8029 debug_range.ranges.iter().filter_map(move |range| {
8030 if range.start.buffer_id != Some(buffer.remote_id()) {
8031 return None;
8032 }
8033 let clipped_start = range.start.max(&buffer_range.start, buffer);
8034 let clipped_end = range.end.min(&buffer_range.end, buffer);
8035 let range = buffer_snapshot
8036 .anchor_range_in_excerpt(excerpt_id, *clipped_start..*clipped_end)?;
8037 let start = range.start.to_display_point(display_snapshot);
8038 let end = range.end.to_display_point(display_snapshot);
8039 let selection_layout = SelectionLayout {
8040 head: start,
8041 range: start..end,
8042 cursor_shape: CursorShape::Bar,
8043 is_newest: false,
8044 is_local: false,
8045 active_rows: start.row()..end.row(),
8046 user_name: Some(SharedString::new(debug_range.value.clone())),
8047 };
8048 Some((player_color, vec![selection_layout]))
8049 })
8050 }));
8051 }
8052 });
8053 }
8054}
8055
8056pub fn render_breadcrumb_text(
8057 mut segments: Vec<BreadcrumbText>,
8058 prefix: Option<gpui::AnyElement>,
8059 active_item: &dyn ItemHandle,
8060 multibuffer_header: bool,
8061 window: &mut Window,
8062 cx: &App,
8063) -> impl IntoElement {
8064 const MAX_SEGMENTS: usize = 12;
8065
8066 let element = h_flex().flex_grow().text_ui(cx);
8067
8068 let prefix_end_ix = cmp::min(segments.len(), MAX_SEGMENTS / 2);
8069 let suffix_start_ix = cmp::max(
8070 prefix_end_ix,
8071 segments.len().saturating_sub(MAX_SEGMENTS / 2),
8072 );
8073
8074 if suffix_start_ix > prefix_end_ix {
8075 segments.splice(
8076 prefix_end_ix..suffix_start_ix,
8077 Some(BreadcrumbText {
8078 text: "β―".into(),
8079 highlights: None,
8080 font: None,
8081 }),
8082 );
8083 }
8084
8085 let highlighted_segments = segments.into_iter().enumerate().map(|(index, segment)| {
8086 let mut text_style = window.text_style();
8087 if let Some(ref font) = segment.font {
8088 text_style.font_family = font.family.clone();
8089 text_style.font_features = font.features.clone();
8090 text_style.font_style = font.style;
8091 text_style.font_weight = font.weight;
8092 }
8093 text_style.color = Color::Muted.color(cx);
8094
8095 if index == 0
8096 && !workspace::TabBarSettings::get_global(cx).show
8097 && active_item.is_dirty(cx)
8098 && let Some(styled_element) = apply_dirty_filename_style(&segment, &text_style, cx)
8099 {
8100 return styled_element;
8101 }
8102
8103 StyledText::new(segment.text.replace('\n', "β"))
8104 .with_default_highlights(&text_style, segment.highlights.unwrap_or_default())
8105 .into_any()
8106 });
8107
8108 let breadcrumbs = Itertools::intersperse_with(highlighted_segments, || {
8109 Label::new("βΊ").color(Color::Placeholder).into_any_element()
8110 });
8111
8112 let breadcrumbs_stack = h_flex()
8113 .gap_1()
8114 .when(multibuffer_header, |this| {
8115 this.pl_2()
8116 .border_l_1()
8117 .border_color(cx.theme().colors().border.opacity(0.6))
8118 })
8119 .children(breadcrumbs);
8120
8121 let breadcrumbs = if let Some(prefix) = prefix {
8122 h_flex().gap_1p5().child(prefix).child(breadcrumbs_stack)
8123 } else {
8124 breadcrumbs_stack
8125 };
8126
8127 let editor = active_item
8128 .downcast::<Editor>()
8129 .map(|editor| editor.downgrade());
8130
8131 let has_project_path = active_item.project_path(cx).is_some();
8132
8133 match editor {
8134 Some(editor) => element
8135 .id("breadcrumb_container")
8136 .when(!multibuffer_header, |this| this.overflow_x_scroll())
8137 .child(
8138 ButtonLike::new("toggle outline view")
8139 .child(breadcrumbs)
8140 .when(multibuffer_header, |this| {
8141 this.style(ButtonStyle::Transparent)
8142 })
8143 .when(!multibuffer_header, |this| {
8144 let focus_handle = editor.upgrade().unwrap().focus_handle(&cx);
8145
8146 this.tooltip(Tooltip::element(move |_window, cx| {
8147 v_flex()
8148 .gap_1()
8149 .child(
8150 h_flex()
8151 .gap_1()
8152 .justify_between()
8153 .child(Label::new("Show Symbol Outline"))
8154 .child(ui::KeyBinding::for_action_in(
8155 &zed_actions::outline::ToggleOutline,
8156 &focus_handle,
8157 cx,
8158 )),
8159 )
8160 .when(has_project_path, |this| {
8161 this.child(
8162 h_flex()
8163 .gap_1()
8164 .justify_between()
8165 .pt_1()
8166 .border_t_1()
8167 .border_color(cx.theme().colors().border_variant)
8168 .child(Label::new("Right-Click to Copy Path")),
8169 )
8170 })
8171 .into_any_element()
8172 }))
8173 .on_click({
8174 let editor = editor.clone();
8175 move |_, window, cx| {
8176 if let Some((editor, callback)) = editor
8177 .upgrade()
8178 .zip(zed_actions::outline::TOGGLE_OUTLINE.get())
8179 {
8180 callback(editor.to_any_view(), window, cx);
8181 }
8182 }
8183 })
8184 .when(has_project_path, |this| {
8185 this.on_right_click({
8186 let editor = editor.clone();
8187 move |_, _, cx| {
8188 if let Some(abs_path) = editor.upgrade().and_then(|editor| {
8189 editor.update(cx, |editor, cx| {
8190 editor.target_file_abs_path(cx)
8191 })
8192 }) {
8193 if let Some(path_str) = abs_path.to_str() {
8194 cx.write_to_clipboard(ClipboardItem::new_string(
8195 path_str.to_string(),
8196 ));
8197 }
8198 }
8199 }
8200 })
8201 })
8202 }),
8203 )
8204 .into_any_element(),
8205 None => element
8206 .h(rems_from_px(22.)) // Match the height and padding of the `ButtonLike` in the other arm.
8207 .pl_1()
8208 .child(breadcrumbs)
8209 .into_any_element(),
8210 }
8211}
8212
8213fn apply_dirty_filename_style(
8214 segment: &BreadcrumbText,
8215 text_style: &gpui::TextStyle,
8216 cx: &App,
8217) -> Option<gpui::AnyElement> {
8218 let text = segment.text.replace('\n', "β");
8219
8220 let filename_position = std::path::Path::new(&segment.text)
8221 .file_name()
8222 .and_then(|f| {
8223 let filename_str = f.to_string_lossy();
8224 segment.text.rfind(filename_str.as_ref())
8225 })?;
8226
8227 let bold_weight = FontWeight::BOLD;
8228 let default_color = Color::Default.color(cx);
8229
8230 if filename_position == 0 {
8231 let mut filename_style = text_style.clone();
8232 filename_style.font_weight = bold_weight;
8233 filename_style.color = default_color;
8234
8235 return Some(
8236 StyledText::new(text)
8237 .with_default_highlights(&filename_style, [])
8238 .into_any(),
8239 );
8240 }
8241
8242 let highlight_style = gpui::HighlightStyle {
8243 font_weight: Some(bold_weight),
8244 color: Some(default_color),
8245 ..Default::default()
8246 };
8247
8248 let highlight = vec![(filename_position..text.len(), highlight_style)];
8249 Some(
8250 StyledText::new(text)
8251 .with_default_highlights(text_style, highlight)
8252 .into_any(),
8253 )
8254}
8255
8256fn file_status_label_color(file_status: Option<FileStatus>) -> Color {
8257 file_status.map_or(Color::Default, |status| {
8258 if status.is_conflicted() {
8259 Color::Conflict
8260 } else if status.is_modified() {
8261 Color::Modified
8262 } else if status.is_deleted() {
8263 Color::Disabled
8264 } else if status.is_created() {
8265 Color::Created
8266 } else {
8267 Color::Default
8268 }
8269 })
8270}
8271
8272fn header_jump_data(
8273 editor_snapshot: &EditorSnapshot,
8274 block_row_start: DisplayRow,
8275 height: u32,
8276 first_excerpt: &ExcerptInfo,
8277 latest_selection_anchors: &HashMap<BufferId, Anchor>,
8278) -> JumpData {
8279 let jump_target = if let Some(anchor) = latest_selection_anchors.get(&first_excerpt.buffer_id)
8280 && let Some(range) = editor_snapshot.context_range_for_excerpt(anchor.excerpt_id)
8281 && let Some(buffer) = editor_snapshot
8282 .buffer_snapshot()
8283 .buffer_for_excerpt(anchor.excerpt_id)
8284 {
8285 JumpTargetInExcerptInput {
8286 id: anchor.excerpt_id,
8287 buffer,
8288 excerpt_start_anchor: range.start,
8289 jump_anchor: anchor.text_anchor,
8290 }
8291 } else {
8292 JumpTargetInExcerptInput {
8293 id: first_excerpt.id,
8294 buffer: &first_excerpt.buffer,
8295 excerpt_start_anchor: first_excerpt.range.context.start,
8296 jump_anchor: first_excerpt.range.primary.start,
8297 }
8298 };
8299 header_jump_data_inner(editor_snapshot, block_row_start, height, &jump_target)
8300}
8301
8302struct JumpTargetInExcerptInput<'a> {
8303 id: ExcerptId,
8304 buffer: &'a language::BufferSnapshot,
8305 excerpt_start_anchor: text::Anchor,
8306 jump_anchor: text::Anchor,
8307}
8308
8309fn header_jump_data_inner(
8310 snapshot: &EditorSnapshot,
8311 block_row_start: DisplayRow,
8312 height: u32,
8313 for_excerpt: &JumpTargetInExcerptInput,
8314) -> JumpData {
8315 let buffer = &for_excerpt.buffer;
8316 let jump_position = language::ToPoint::to_point(&for_excerpt.jump_anchor, buffer);
8317 let excerpt_start = for_excerpt.excerpt_start_anchor;
8318 let rows_from_excerpt_start = if for_excerpt.jump_anchor == excerpt_start {
8319 0
8320 } else {
8321 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
8322 jump_position.row.saturating_sub(excerpt_start_point.row)
8323 };
8324
8325 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
8326 .saturating_sub(
8327 snapshot
8328 .scroll_anchor
8329 .scroll_position(&snapshot.display_snapshot)
8330 .y as u32,
8331 );
8332
8333 JumpData::MultiBufferPoint {
8334 excerpt_id: for_excerpt.id,
8335 anchor: for_excerpt.jump_anchor,
8336 position: jump_position,
8337 line_offset_from_top,
8338 }
8339}
8340
8341pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
8342
8343impl AcceptEditPredictionBinding {
8344 pub fn keystroke(&self) -> Option<&KeybindingKeystroke> {
8345 if let Some(binding) = self.0.as_ref() {
8346 match &binding.keystrokes() {
8347 [keystroke, ..] => Some(keystroke),
8348 _ => None,
8349 }
8350 } else {
8351 None
8352 }
8353 }
8354}
8355
8356fn prepaint_gutter_button(
8357 mut button: AnyElement,
8358 row: DisplayRow,
8359 line_height: Pixels,
8360 gutter_dimensions: &GutterDimensions,
8361 scroll_position: gpui::Point<ScrollOffset>,
8362 gutter_hitbox: &Hitbox,
8363 window: &mut Window,
8364 cx: &mut App,
8365) -> AnyElement {
8366 let available_space = size(
8367 AvailableSpace::MinContent,
8368 AvailableSpace::Definite(line_height),
8369 );
8370 let indicator_size = button.layout_as_root(available_space, window, cx);
8371 let git_gutter_width = EditorElement::gutter_strip_width(line_height)
8372 + gutter_dimensions
8373 .git_blame_entries_width
8374 .unwrap_or_default();
8375
8376 let x = git_gutter_width + px(2.);
8377
8378 let mut y =
8379 Pixels::from((row.as_f64() - scroll_position.y) * ScrollPixelOffset::from(line_height));
8380 y += (line_height - indicator_size.height) / 2.;
8381
8382 button.prepaint_as_root(
8383 gutter_hitbox.origin + point(x, y),
8384 available_space,
8385 window,
8386 cx,
8387 );
8388 button
8389}
8390
8391fn render_inline_blame_entry(
8392 blame_entry: BlameEntry,
8393 style: &EditorStyle,
8394 cx: &mut App,
8395) -> Option<AnyElement> {
8396 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
8397 renderer.render_inline_blame_entry(&style.text, blame_entry, cx)
8398}
8399
8400fn render_blame_entry_popover(
8401 blame_entry: BlameEntry,
8402 scroll_handle: ScrollHandle,
8403 commit_message: Option<ParsedCommitMessage>,
8404 markdown: Entity<Markdown>,
8405 workspace: WeakEntity<Workspace>,
8406 blame: &Entity<GitBlame>,
8407 buffer: BufferId,
8408 window: &mut Window,
8409 cx: &mut App,
8410) -> Option<AnyElement> {
8411 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
8412 let blame = blame.read(cx);
8413 let repository = blame.repository(cx, buffer)?;
8414 renderer.render_blame_entry_popover(
8415 blame_entry,
8416 scroll_handle,
8417 commit_message,
8418 markdown,
8419 repository,
8420 workspace,
8421 window,
8422 cx,
8423 )
8424}
8425
8426fn render_blame_entry(
8427 ix: usize,
8428 blame: &Entity<GitBlame>,
8429 blame_entry: BlameEntry,
8430 style: &EditorStyle,
8431 last_used_color: &mut Option<(Hsla, Oid)>,
8432 editor: Entity<Editor>,
8433 workspace: Entity<Workspace>,
8434 buffer: BufferId,
8435 renderer: &dyn BlameRenderer,
8436 window: &mut Window,
8437 cx: &mut App,
8438) -> Option<AnyElement> {
8439 let index: u32 = blame_entry.sha.into();
8440 let mut sha_color = cx.theme().players().color_for_participant(index).cursor;
8441
8442 // If the last color we used is the same as the one we get for this line, but
8443 // the commit SHAs are different, then we try again to get a different color.
8444 if let Some((color, sha)) = *last_used_color
8445 && sha != blame_entry.sha
8446 && color == sha_color
8447 {
8448 sha_color = cx.theme().players().color_for_participant(index + 1).cursor;
8449 }
8450 last_used_color.replace((sha_color, blame_entry.sha));
8451
8452 let blame = blame.read(cx);
8453 let details = blame.details_for_entry(buffer, &blame_entry);
8454 let repository = blame.repository(cx, buffer)?;
8455 renderer.render_blame_entry(
8456 &style.text,
8457 blame_entry,
8458 details,
8459 repository,
8460 workspace.downgrade(),
8461 editor,
8462 ix,
8463 sha_color,
8464 window,
8465 cx,
8466 )
8467}
8468
8469#[derive(Debug)]
8470pub(crate) struct LineWithInvisibles {
8471 fragments: SmallVec<[LineFragment; 1]>,
8472 invisibles: Vec<Invisible>,
8473 len: usize,
8474 pub(crate) width: Pixels,
8475 font_size: Pixels,
8476}
8477
8478enum LineFragment {
8479 Text(ShapedLine),
8480 Element {
8481 id: ChunkRendererId,
8482 element: Option<AnyElement>,
8483 size: Size<Pixels>,
8484 len: usize,
8485 },
8486}
8487
8488impl fmt::Debug for LineFragment {
8489 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
8490 match self {
8491 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
8492 LineFragment::Element { size, len, .. } => f
8493 .debug_struct("Element")
8494 .field("size", size)
8495 .field("len", len)
8496 .finish(),
8497 }
8498 }
8499}
8500
8501impl LineWithInvisibles {
8502 fn from_chunks<'a>(
8503 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
8504 editor_style: &EditorStyle,
8505 max_line_len: usize,
8506 max_line_count: usize,
8507 editor_mode: &EditorMode,
8508 text_width: Pixels,
8509 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8510 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
8511 window: &mut Window,
8512 cx: &mut App,
8513 ) -> Vec<Self> {
8514 let text_style = &editor_style.text;
8515 let mut layouts = Vec::with_capacity(max_line_count);
8516 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
8517 let mut line = String::new();
8518 let mut invisibles = Vec::new();
8519 let mut width = Pixels::ZERO;
8520 let mut len = 0;
8521 let mut styles = Vec::new();
8522 let mut non_whitespace_added = false;
8523 let mut row = 0;
8524 let mut line_exceeded_max_len = false;
8525 let font_size = text_style.font_size.to_pixels(window.rem_size());
8526 let min_contrast = EditorSettings::get_global(cx).minimum_contrast_for_highlights;
8527
8528 let ellipsis = SharedString::from("β―");
8529
8530 for highlighted_chunk in chunks.chain([HighlightedChunk {
8531 text: "\n",
8532 style: None,
8533 is_tab: false,
8534 is_inlay: false,
8535 replacement: None,
8536 }]) {
8537 if let Some(replacement) = highlighted_chunk.replacement {
8538 if !line.is_empty() {
8539 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8540 let text_runs: &[TextRun] = if segments.is_empty() {
8541 &styles
8542 } else {
8543 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8544 };
8545 let shaped_line = window.text_system().shape_line(
8546 line.clone().into(),
8547 font_size,
8548 text_runs,
8549 None,
8550 );
8551 width += shaped_line.width;
8552 len += shaped_line.len;
8553 fragments.push(LineFragment::Text(shaped_line));
8554 line.clear();
8555 styles.clear();
8556 }
8557
8558 match replacement {
8559 ChunkReplacement::Renderer(renderer) => {
8560 let available_width = if renderer.constrain_width {
8561 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
8562 ellipsis.clone()
8563 } else {
8564 SharedString::from(Arc::from(highlighted_chunk.text))
8565 };
8566 let shaped_line = window.text_system().shape_line(
8567 chunk,
8568 font_size,
8569 &[text_style.to_run(highlighted_chunk.text.len())],
8570 None,
8571 );
8572 AvailableSpace::Definite(shaped_line.width)
8573 } else {
8574 AvailableSpace::MinContent
8575 };
8576
8577 let mut element = (renderer.render)(&mut ChunkRendererContext {
8578 context: cx,
8579 window,
8580 max_width: text_width,
8581 });
8582 let line_height = text_style.line_height_in_pixels(window.rem_size());
8583 let size = element.layout_as_root(
8584 size(available_width, AvailableSpace::Definite(line_height)),
8585 window,
8586 cx,
8587 );
8588
8589 width += size.width;
8590 len += highlighted_chunk.text.len();
8591 fragments.push(LineFragment::Element {
8592 id: renderer.id,
8593 element: Some(element),
8594 size,
8595 len: highlighted_chunk.text.len(),
8596 });
8597 }
8598 ChunkReplacement::Str(x) => {
8599 let text_style = if let Some(style) = highlighted_chunk.style {
8600 Cow::Owned(text_style.clone().highlight(style))
8601 } else {
8602 Cow::Borrowed(text_style)
8603 };
8604
8605 let run = TextRun {
8606 len: x.len(),
8607 font: text_style.font(),
8608 color: text_style.color,
8609 background_color: text_style.background_color,
8610 underline: text_style.underline,
8611 strikethrough: text_style.strikethrough,
8612 };
8613 let line_layout = window
8614 .text_system()
8615 .shape_line(x, font_size, &[run], None)
8616 .with_len(highlighted_chunk.text.len());
8617
8618 width += line_layout.width;
8619 len += highlighted_chunk.text.len();
8620 fragments.push(LineFragment::Text(line_layout))
8621 }
8622 }
8623 } else {
8624 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
8625 if ix > 0 {
8626 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8627 let text_runs = if segments.is_empty() {
8628 &styles
8629 } else {
8630 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8631 };
8632 let shaped_line = window.text_system().shape_line(
8633 line.clone().into(),
8634 font_size,
8635 text_runs,
8636 None,
8637 );
8638 width += shaped_line.width;
8639 len += shaped_line.len;
8640 fragments.push(LineFragment::Text(shaped_line));
8641 layouts.push(Self {
8642 width: mem::take(&mut width),
8643 len: mem::take(&mut len),
8644 fragments: mem::take(&mut fragments),
8645 invisibles: std::mem::take(&mut invisibles),
8646 font_size,
8647 });
8648
8649 line.clear();
8650 styles.clear();
8651 row += 1;
8652 line_exceeded_max_len = false;
8653 non_whitespace_added = false;
8654 if row == max_line_count {
8655 return layouts;
8656 }
8657 }
8658
8659 if !line_chunk.is_empty() && !line_exceeded_max_len {
8660 let text_style = if let Some(style) = highlighted_chunk.style {
8661 Cow::Owned(text_style.clone().highlight(style))
8662 } else {
8663 Cow::Borrowed(text_style)
8664 };
8665
8666 if line.len() + line_chunk.len() > max_line_len {
8667 let mut chunk_len = max_line_len - line.len();
8668 while !line_chunk.is_char_boundary(chunk_len) {
8669 chunk_len -= 1;
8670 }
8671 line_chunk = &line_chunk[..chunk_len];
8672 line_exceeded_max_len = true;
8673 }
8674
8675 styles.push(TextRun {
8676 len: line_chunk.len(),
8677 font: text_style.font(),
8678 color: text_style.color,
8679 background_color: text_style.background_color,
8680 underline: text_style.underline,
8681 strikethrough: text_style.strikethrough,
8682 });
8683
8684 if editor_mode.is_full() && !highlighted_chunk.is_inlay {
8685 // Line wrap pads its contents with fake whitespaces,
8686 // avoid printing them
8687 let is_soft_wrapped = is_row_soft_wrapped(row);
8688 if highlighted_chunk.is_tab {
8689 if non_whitespace_added || !is_soft_wrapped {
8690 invisibles.push(Invisible::Tab {
8691 line_start_offset: line.len(),
8692 line_end_offset: line.len() + line_chunk.len(),
8693 });
8694 }
8695 } else {
8696 invisibles.extend(line_chunk.char_indices().filter_map(
8697 |(index, c)| {
8698 let is_whitespace = c.is_whitespace();
8699 non_whitespace_added |= !is_whitespace;
8700 if is_whitespace
8701 && (non_whitespace_added || !is_soft_wrapped)
8702 {
8703 Some(Invisible::Whitespace {
8704 line_offset: line.len() + index,
8705 })
8706 } else {
8707 None
8708 }
8709 },
8710 ))
8711 }
8712 }
8713
8714 line.push_str(line_chunk);
8715 }
8716 }
8717 }
8718 }
8719
8720 layouts
8721 }
8722
8723 /// Takes text runs and non-overlapping left-to-right background ranges with color.
8724 /// Returns new text runs with adjusted contrast as per background ranges.
8725 fn split_runs_by_bg_segments(
8726 text_runs: &[TextRun],
8727 bg_segments: &[(Range<DisplayPoint>, Hsla)],
8728 min_contrast: f32,
8729 start_col_offset: usize,
8730 ) -> Vec<TextRun> {
8731 let mut output_runs: Vec<TextRun> = Vec::with_capacity(text_runs.len());
8732 let mut line_col = start_col_offset;
8733 let mut segment_ix = 0usize;
8734
8735 for text_run in text_runs.iter() {
8736 let run_start_col = line_col;
8737 let run_end_col = run_start_col + text_run.len;
8738 while segment_ix < bg_segments.len()
8739 && (bg_segments[segment_ix].0.end.column() as usize) <= run_start_col
8740 {
8741 segment_ix += 1;
8742 }
8743 let mut cursor_col = run_start_col;
8744 let mut local_segment_ix = segment_ix;
8745 while local_segment_ix < bg_segments.len() {
8746 let (range, segment_color) = &bg_segments[local_segment_ix];
8747 let segment_start_col = range.start.column() as usize;
8748 let segment_end_col = range.end.column() as usize;
8749 if segment_start_col >= run_end_col {
8750 break;
8751 }
8752 if segment_start_col > cursor_col {
8753 let span_len = segment_start_col - cursor_col;
8754 output_runs.push(TextRun {
8755 len: span_len,
8756 font: text_run.font.clone(),
8757 color: text_run.color,
8758 background_color: text_run.background_color,
8759 underline: text_run.underline,
8760 strikethrough: text_run.strikethrough,
8761 });
8762 cursor_col = segment_start_col;
8763 }
8764 let segment_slice_end_col = segment_end_col.min(run_end_col);
8765 if segment_slice_end_col > cursor_col {
8766 let new_text_color =
8767 ensure_minimum_contrast(text_run.color, *segment_color, min_contrast);
8768 output_runs.push(TextRun {
8769 len: segment_slice_end_col - cursor_col,
8770 font: text_run.font.clone(),
8771 color: new_text_color,
8772 background_color: text_run.background_color,
8773 underline: text_run.underline,
8774 strikethrough: text_run.strikethrough,
8775 });
8776 cursor_col = segment_slice_end_col;
8777 }
8778 if segment_end_col >= run_end_col {
8779 break;
8780 }
8781 local_segment_ix += 1;
8782 }
8783 if cursor_col < run_end_col {
8784 output_runs.push(TextRun {
8785 len: run_end_col - cursor_col,
8786 font: text_run.font.clone(),
8787 color: text_run.color,
8788 background_color: text_run.background_color,
8789 underline: text_run.underline,
8790 strikethrough: text_run.strikethrough,
8791 });
8792 }
8793 line_col = run_end_col;
8794 segment_ix = local_segment_ix;
8795 }
8796 output_runs
8797 }
8798
8799 fn prepaint(
8800 &mut self,
8801 line_height: Pixels,
8802 scroll_position: gpui::Point<ScrollOffset>,
8803 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
8804 row: DisplayRow,
8805 content_origin: gpui::Point<Pixels>,
8806 line_elements: &mut SmallVec<[AnyElement; 1]>,
8807 window: &mut Window,
8808 cx: &mut App,
8809 ) {
8810 let line_y = f32::from(line_height) * Pixels::from(row.as_f64() - scroll_position.y);
8811 self.prepaint_with_custom_offset(
8812 line_height,
8813 scroll_pixel_position,
8814 content_origin,
8815 line_y,
8816 line_elements,
8817 window,
8818 cx,
8819 );
8820 }
8821
8822 fn prepaint_with_custom_offset(
8823 &mut self,
8824 line_height: Pixels,
8825 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
8826 content_origin: gpui::Point<Pixels>,
8827 line_y: Pixels,
8828 line_elements: &mut SmallVec<[AnyElement; 1]>,
8829 window: &mut Window,
8830 cx: &mut App,
8831 ) {
8832 let mut fragment_origin =
8833 content_origin + gpui::point(Pixels::from(-scroll_pixel_position.x), line_y);
8834 for fragment in &mut self.fragments {
8835 match fragment {
8836 LineFragment::Text(line) => {
8837 fragment_origin.x += line.width;
8838 }
8839 LineFragment::Element { element, size, .. } => {
8840 let mut element = element
8841 .take()
8842 .expect("you can't prepaint LineWithInvisibles twice");
8843
8844 // Center the element vertically within the line.
8845 let mut element_origin = fragment_origin;
8846 element_origin.y += (line_height - size.height) / 2.;
8847 element.prepaint_at(element_origin, window, cx);
8848 line_elements.push(element);
8849
8850 fragment_origin.x += size.width;
8851 }
8852 }
8853 }
8854 }
8855
8856 fn draw(
8857 &self,
8858 layout: &EditorLayout,
8859 row: DisplayRow,
8860 content_origin: gpui::Point<Pixels>,
8861 whitespace_setting: ShowWhitespaceSetting,
8862 selection_ranges: &[Range<DisplayPoint>],
8863 window: &mut Window,
8864 cx: &mut App,
8865 ) {
8866 self.draw_with_custom_offset(
8867 layout,
8868 row,
8869 content_origin,
8870 layout.position_map.line_height
8871 * (row.as_f64() - layout.position_map.scroll_position.y) as f32,
8872 whitespace_setting,
8873 selection_ranges,
8874 window,
8875 cx,
8876 );
8877 }
8878
8879 fn draw_with_custom_offset(
8880 &self,
8881 layout: &EditorLayout,
8882 row: DisplayRow,
8883 content_origin: gpui::Point<Pixels>,
8884 line_y: Pixels,
8885 whitespace_setting: ShowWhitespaceSetting,
8886 selection_ranges: &[Range<DisplayPoint>],
8887 window: &mut Window,
8888 cx: &mut App,
8889 ) {
8890 let line_height = layout.position_map.line_height;
8891 let mut fragment_origin = content_origin
8892 + gpui::point(
8893 Pixels::from(-layout.position_map.scroll_pixel_position.x),
8894 line_y,
8895 );
8896
8897 for fragment in &self.fragments {
8898 match fragment {
8899 LineFragment::Text(line) => {
8900 line.paint(
8901 fragment_origin,
8902 line_height,
8903 layout.text_align,
8904 Some(layout.content_width),
8905 window,
8906 cx,
8907 )
8908 .log_err();
8909 fragment_origin.x += line.width;
8910 }
8911 LineFragment::Element { size, .. } => {
8912 fragment_origin.x += size.width;
8913 }
8914 }
8915 }
8916
8917 self.draw_invisibles(
8918 selection_ranges,
8919 layout,
8920 content_origin,
8921 line_y,
8922 row,
8923 line_height,
8924 whitespace_setting,
8925 window,
8926 cx,
8927 );
8928 }
8929
8930 fn draw_background(
8931 &self,
8932 layout: &EditorLayout,
8933 row: DisplayRow,
8934 content_origin: gpui::Point<Pixels>,
8935 window: &mut Window,
8936 cx: &mut App,
8937 ) {
8938 let line_height = layout.position_map.line_height;
8939 let line_y = line_height * (row.as_f64() - layout.position_map.scroll_position.y) as f32;
8940
8941 let mut fragment_origin = content_origin
8942 + gpui::point(
8943 Pixels::from(-layout.position_map.scroll_pixel_position.x),
8944 line_y,
8945 );
8946
8947 for fragment in &self.fragments {
8948 match fragment {
8949 LineFragment::Text(line) => {
8950 line.paint_background(
8951 fragment_origin,
8952 line_height,
8953 layout.text_align,
8954 Some(layout.content_width),
8955 window,
8956 cx,
8957 )
8958 .log_err();
8959 fragment_origin.x += line.width;
8960 }
8961 LineFragment::Element { size, .. } => {
8962 fragment_origin.x += size.width;
8963 }
8964 }
8965 }
8966 }
8967
8968 fn draw_invisibles(
8969 &self,
8970 selection_ranges: &[Range<DisplayPoint>],
8971 layout: &EditorLayout,
8972 content_origin: gpui::Point<Pixels>,
8973 line_y: Pixels,
8974 row: DisplayRow,
8975 line_height: Pixels,
8976 whitespace_setting: ShowWhitespaceSetting,
8977 window: &mut Window,
8978 cx: &mut App,
8979 ) {
8980 let extract_whitespace_info = |invisible: &Invisible| {
8981 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
8982 Invisible::Tab {
8983 line_start_offset,
8984 line_end_offset,
8985 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
8986 Invisible::Whitespace { line_offset } => {
8987 (*line_offset, line_offset + 1, &layout.space_invisible)
8988 }
8989 };
8990
8991 let x_offset: ScrollPixelOffset = self.x_for_index(token_offset).into();
8992 let invisible_offset: ScrollPixelOffset =
8993 ((layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0)
8994 .into();
8995 let origin = content_origin
8996 + gpui::point(
8997 Pixels::from(
8998 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
8999 ),
9000 line_y,
9001 );
9002
9003 (
9004 [token_offset, token_end_offset],
9005 Box::new(move |window: &mut Window, cx: &mut App| {
9006 invisible_symbol
9007 .paint(origin, line_height, TextAlign::Left, None, window, cx)
9008 .log_err();
9009 }),
9010 )
9011 };
9012
9013 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
9014 match whitespace_setting {
9015 ShowWhitespaceSetting::None => (),
9016 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
9017 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
9018 let invisible_point = DisplayPoint::new(row, start as u32);
9019 if !selection_ranges
9020 .iter()
9021 .any(|region| region.start <= invisible_point && invisible_point < region.end)
9022 {
9023 return;
9024 }
9025
9026 paint(window, cx);
9027 }),
9028
9029 ShowWhitespaceSetting::Trailing => {
9030 let mut previous_start = self.len;
9031 for ([start, end], paint) in invisible_iter.rev() {
9032 if previous_start != end {
9033 break;
9034 }
9035 previous_start = start;
9036 paint(window, cx);
9037 }
9038 }
9039
9040 // For a whitespace to be on a boundary, any of the following conditions need to be met:
9041 // - It is a tab
9042 // - It is adjacent to an edge (start or end)
9043 // - It is adjacent to a whitespace (left or right)
9044 ShowWhitespaceSetting::Boundary => {
9045 // 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
9046 // the above cases.
9047 // Note: We zip in the original `invisibles` to check for tab equality
9048 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
9049 for (([start, end], paint), invisible) in
9050 invisible_iter.zip_eq(self.invisibles.iter())
9051 {
9052 let should_render = match (&last_seen, invisible) {
9053 (_, Invisible::Tab { .. }) => true,
9054 (Some((_, last_end, _)), _) => *last_end == start,
9055 _ => false,
9056 };
9057
9058 if should_render || start == 0 || end == self.len {
9059 paint(window, cx);
9060
9061 // Since we are scanning from the left, we will skip over the first available whitespace that is part
9062 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
9063 if let Some((should_render_last, last_end, paint_last)) = last_seen {
9064 // Note that we need to make sure that the last one is actually adjacent
9065 if !should_render_last && last_end == start {
9066 paint_last(window, cx);
9067 }
9068 }
9069 }
9070
9071 // Manually render anything within a selection
9072 let invisible_point = DisplayPoint::new(row, start as u32);
9073 if selection_ranges.iter().any(|region| {
9074 region.start <= invisible_point && invisible_point < region.end
9075 }) {
9076 paint(window, cx);
9077 }
9078
9079 last_seen = Some((should_render, end, paint));
9080 }
9081 }
9082 }
9083 }
9084
9085 pub fn x_for_index(&self, index: usize) -> Pixels {
9086 let mut fragment_start_x = Pixels::ZERO;
9087 let mut fragment_start_index = 0;
9088
9089 for fragment in &self.fragments {
9090 match fragment {
9091 LineFragment::Text(shaped_line) => {
9092 let fragment_end_index = fragment_start_index + shaped_line.len;
9093 if index < fragment_end_index {
9094 return fragment_start_x
9095 + shaped_line.x_for_index(index - fragment_start_index);
9096 }
9097 fragment_start_x += shaped_line.width;
9098 fragment_start_index = fragment_end_index;
9099 }
9100 LineFragment::Element { len, size, .. } => {
9101 let fragment_end_index = fragment_start_index + len;
9102 if index < fragment_end_index {
9103 return fragment_start_x;
9104 }
9105 fragment_start_x += size.width;
9106 fragment_start_index = fragment_end_index;
9107 }
9108 }
9109 }
9110
9111 fragment_start_x
9112 }
9113
9114 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
9115 let mut fragment_start_x = Pixels::ZERO;
9116 let mut fragment_start_index = 0;
9117
9118 for fragment in &self.fragments {
9119 match fragment {
9120 LineFragment::Text(shaped_line) => {
9121 let fragment_end_x = fragment_start_x + shaped_line.width;
9122 if x < fragment_end_x {
9123 return Some(
9124 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
9125 );
9126 }
9127 fragment_start_x = fragment_end_x;
9128 fragment_start_index += shaped_line.len;
9129 }
9130 LineFragment::Element { len, size, .. } => {
9131 let fragment_end_x = fragment_start_x + size.width;
9132 if x < fragment_end_x {
9133 return Some(fragment_start_index);
9134 }
9135 fragment_start_index += len;
9136 fragment_start_x = fragment_end_x;
9137 }
9138 }
9139 }
9140
9141 None
9142 }
9143
9144 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
9145 let mut fragment_start_index = 0;
9146
9147 for fragment in &self.fragments {
9148 match fragment {
9149 LineFragment::Text(shaped_line) => {
9150 let fragment_end_index = fragment_start_index + shaped_line.len;
9151 if index < fragment_end_index {
9152 return shaped_line.font_id_for_index(index - fragment_start_index);
9153 }
9154 fragment_start_index = fragment_end_index;
9155 }
9156 LineFragment::Element { len, .. } => {
9157 let fragment_end_index = fragment_start_index + len;
9158 if index < fragment_end_index {
9159 return None;
9160 }
9161 fragment_start_index = fragment_end_index;
9162 }
9163 }
9164 }
9165
9166 None
9167 }
9168
9169 pub fn alignment_offset(&self, text_align: TextAlign, content_width: Pixels) -> Pixels {
9170 let line_width = self.width;
9171 match text_align {
9172 TextAlign::Left => px(0.0),
9173 TextAlign::Center => (content_width - line_width) / 2.0,
9174 TextAlign::Right => content_width - line_width,
9175 }
9176 }
9177}
9178
9179#[derive(Debug, Clone, Copy, PartialEq, Eq)]
9180enum Invisible {
9181 /// A tab character
9182 ///
9183 /// A tab character is internally represented by spaces (configured by the user's tab width)
9184 /// aligned to the nearest column, so it's necessary to store the start and end offset for
9185 /// adjacency checks.
9186 Tab {
9187 line_start_offset: usize,
9188 line_end_offset: usize,
9189 },
9190 Whitespace {
9191 line_offset: usize,
9192 },
9193}
9194
9195impl EditorElement {
9196 /// Returns the rem size to use when rendering the [`EditorElement`].
9197 ///
9198 /// This allows UI elements to scale based on the `buffer_font_size`.
9199 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
9200 match self.editor.read(cx).mode {
9201 EditorMode::Full {
9202 scale_ui_elements_with_buffer_font_size: true,
9203 ..
9204 }
9205 | EditorMode::Minimap { .. } => {
9206 let buffer_font_size = self.style.text.font_size;
9207 match buffer_font_size {
9208 AbsoluteLength::Pixels(pixels) => {
9209 let rem_size_scale = {
9210 // Our default UI font size is 14px on a 16px base scale.
9211 // This means the default UI font size is 0.875rems.
9212 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
9213
9214 // We then determine the delta between a single rem and the default font
9215 // size scale.
9216 let default_font_size_delta = 1. - default_font_size_scale;
9217
9218 // Finally, we add this delta to 1rem to get the scale factor that
9219 // should be used to scale up the UI.
9220 1. + default_font_size_delta
9221 };
9222
9223 Some(pixels * rem_size_scale)
9224 }
9225 AbsoluteLength::Rems(rems) => {
9226 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
9227 }
9228 }
9229 }
9230 // We currently use single-line and auto-height editors in UI contexts,
9231 // so we don't want to scale everything with the buffer font size, as it
9232 // ends up looking off.
9233 _ => None,
9234 }
9235 }
9236
9237 fn editor_with_selections(&self, cx: &App) -> Option<Entity<Editor>> {
9238 if let EditorMode::Minimap { parent } = self.editor.read(cx).mode() {
9239 parent.upgrade()
9240 } else {
9241 Some(self.editor.clone())
9242 }
9243 }
9244}
9245
9246#[derive(Default)]
9247pub struct EditorRequestLayoutState {
9248 // We use prepaint depth to limit the number of times prepaint is
9249 // called recursively. We need this so that we can update stale
9250 // data for e.g. block heights in block map.
9251 prepaint_depth: Rc<Cell<usize>>,
9252}
9253
9254impl EditorRequestLayoutState {
9255 // In ideal conditions we only need one more subsequent prepaint call for resize to take effect.
9256 // i.e. MAX_PREPAINT_DEPTH = 2, but since moving blocks inline (place_near), more lines from
9257 // below get exposed, and we end up querying blocks for those lines too in subsequent renders.
9258 // Setting MAX_PREPAINT_DEPTH = 3, passes all tests. Just to be on the safe side we set it to 5, so
9259 // that subsequent shrinking does not lead to incorrect block placing.
9260 const MAX_PREPAINT_DEPTH: usize = 5;
9261
9262 fn increment_prepaint_depth(&self) -> EditorPrepaintGuard {
9263 let depth = self.prepaint_depth.get();
9264 self.prepaint_depth.set(depth + 1);
9265 EditorPrepaintGuard {
9266 prepaint_depth: self.prepaint_depth.clone(),
9267 }
9268 }
9269
9270 fn can_prepaint(&self) -> bool {
9271 self.prepaint_depth.get() < Self::MAX_PREPAINT_DEPTH
9272 }
9273}
9274
9275struct EditorPrepaintGuard {
9276 prepaint_depth: Rc<Cell<usize>>,
9277}
9278
9279impl Drop for EditorPrepaintGuard {
9280 fn drop(&mut self) {
9281 let depth = self.prepaint_depth.get();
9282 self.prepaint_depth.set(depth.saturating_sub(1));
9283 }
9284}
9285
9286impl Element for EditorElement {
9287 type RequestLayoutState = EditorRequestLayoutState;
9288 type PrepaintState = EditorLayout;
9289
9290 fn id(&self) -> Option<ElementId> {
9291 None
9292 }
9293
9294 fn source_location(&self) -> Option<&'static core::panic::Location<'static>> {
9295 None
9296 }
9297
9298 fn request_layout(
9299 &mut self,
9300 _: Option<&GlobalElementId>,
9301 _inspector_id: Option<&gpui::InspectorElementId>,
9302 window: &mut Window,
9303 cx: &mut App,
9304 ) -> (gpui::LayoutId, Self::RequestLayoutState) {
9305 let rem_size = self.rem_size(cx);
9306 window.with_rem_size(rem_size, |window| {
9307 self.editor.update(cx, |editor, cx| {
9308 editor.set_style(self.style.clone(), window, cx);
9309
9310 let layout_id = match editor.mode {
9311 EditorMode::SingleLine => {
9312 let rem_size = window.rem_size();
9313 let height = self.style.text.line_height_in_pixels(rem_size);
9314 let mut style = Style::default();
9315 style.size.height = height.into();
9316 style.size.width = relative(1.).into();
9317 window.request_layout(style, None, cx)
9318 }
9319 EditorMode::AutoHeight {
9320 min_lines,
9321 max_lines,
9322 } => {
9323 let editor_handle = cx.entity();
9324 window.request_measured_layout(
9325 Style::default(),
9326 move |known_dimensions, available_space, window, cx| {
9327 editor_handle
9328 .update(cx, |editor, cx| {
9329 compute_auto_height_layout(
9330 editor,
9331 min_lines,
9332 max_lines,
9333 known_dimensions,
9334 available_space.width,
9335 window,
9336 cx,
9337 )
9338 })
9339 .unwrap_or_default()
9340 },
9341 )
9342 }
9343 EditorMode::Minimap { .. } => {
9344 let mut style = Style::default();
9345 style.size.width = relative(1.).into();
9346 style.size.height = relative(1.).into();
9347 window.request_layout(style, None, cx)
9348 }
9349 EditorMode::Full {
9350 sizing_behavior, ..
9351 } => {
9352 let mut style = Style::default();
9353 style.size.width = relative(1.).into();
9354 if sizing_behavior == SizingBehavior::SizeByContent {
9355 let snapshot = editor.snapshot(window, cx);
9356 let line_height =
9357 self.style.text.line_height_in_pixels(window.rem_size());
9358 let scroll_height =
9359 (snapshot.max_point().row().next_row().0 as f32) * line_height;
9360 style.size.height = scroll_height.into();
9361 } else {
9362 style.size.height = relative(1.).into();
9363 }
9364 window.request_layout(style, None, cx)
9365 }
9366 };
9367
9368 (layout_id, EditorRequestLayoutState::default())
9369 })
9370 })
9371 }
9372
9373 fn prepaint(
9374 &mut self,
9375 _: Option<&GlobalElementId>,
9376 _inspector_id: Option<&gpui::InspectorElementId>,
9377 bounds: Bounds<Pixels>,
9378 request_layout: &mut Self::RequestLayoutState,
9379 window: &mut Window,
9380 cx: &mut App,
9381 ) -> Self::PrepaintState {
9382 let _prepaint_depth_guard = request_layout.increment_prepaint_depth();
9383 let text_style = TextStyleRefinement {
9384 font_size: Some(self.style.text.font_size),
9385 line_height: Some(self.style.text.line_height),
9386 ..Default::default()
9387 };
9388
9389 let is_minimap = self.editor.read(cx).mode.is_minimap();
9390 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
9391
9392 if !is_minimap {
9393 let focus_handle = self.editor.focus_handle(cx);
9394 window.set_view_id(self.editor.entity_id());
9395 window.set_focus_handle(&focus_handle, cx);
9396 }
9397
9398 let rem_size = self.rem_size(cx);
9399 window.with_rem_size(rem_size, |window| {
9400 window.with_text_style(Some(text_style), |window| {
9401 window.with_content_mask(Some(ContentMask { bounds }), |window| {
9402 let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| {
9403 (editor.snapshot(window, cx), editor.read_only(cx))
9404 });
9405 let style = &self.style;
9406
9407 let rem_size = window.rem_size();
9408 let font_id = window.text_system().resolve_font(&style.text.font());
9409 let font_size = style.text.font_size.to_pixels(rem_size);
9410 let line_height = style.text.line_height_in_pixels(rem_size);
9411 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
9412 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
9413 let glyph_grid_cell = size(em_advance, line_height);
9414
9415 let gutter_dimensions =
9416 snapshot.gutter_dimensions(font_id, font_size, style, window, cx);
9417 let text_width = bounds.size.width - gutter_dimensions.width;
9418
9419 let settings = EditorSettings::get_global(cx);
9420 let scrollbars_shown = settings.scrollbar.show != ShowScrollbar::Never;
9421 let vertical_scrollbar_width = (scrollbars_shown
9422 && settings.scrollbar.axes.vertical
9423 && self.editor.read(cx).show_scrollbars.vertical)
9424 .then_some(style.scrollbar_width)
9425 .unwrap_or_default();
9426 let minimap_width = self
9427 .get_minimap_width(
9428 &settings.minimap,
9429 scrollbars_shown,
9430 text_width,
9431 em_width,
9432 font_size,
9433 rem_size,
9434 cx,
9435 )
9436 .unwrap_or_default();
9437
9438 let right_margin = minimap_width + vertical_scrollbar_width;
9439
9440 let editor_width =
9441 text_width - gutter_dimensions.margin - 2 * em_width - right_margin;
9442 let editor_margins = EditorMargins {
9443 gutter: gutter_dimensions,
9444 right: right_margin,
9445 };
9446
9447 snapshot = self.editor.update(cx, |editor, cx| {
9448 editor.last_bounds = Some(bounds);
9449 editor.gutter_dimensions = gutter_dimensions;
9450 editor.set_visible_line_count(
9451 (bounds.size.height / line_height) as f64,
9452 window,
9453 cx,
9454 );
9455 editor.set_visible_column_count(f64::from(editor_width / em_advance));
9456
9457 if matches!(
9458 editor.mode,
9459 EditorMode::AutoHeight { .. } | EditorMode::Minimap { .. }
9460 ) {
9461 snapshot
9462 } else {
9463 let wrap_width_for = |column: u32| (column as f32 * em_advance).ceil();
9464 let wrap_width = match editor.soft_wrap_mode(cx) {
9465 SoftWrap::GitDiff => None,
9466 SoftWrap::None => Some(wrap_width_for(MAX_LINE_LEN as u32 / 2)),
9467 SoftWrap::EditorWidth => Some(editor_width),
9468 SoftWrap::Column(column) => Some(wrap_width_for(column)),
9469 SoftWrap::Bounded(column) => {
9470 Some(editor_width.min(wrap_width_for(column)))
9471 }
9472 };
9473
9474 if editor.set_wrap_width(wrap_width, cx) {
9475 editor.snapshot(window, cx)
9476 } else {
9477 snapshot
9478 }
9479 }
9480 });
9481
9482 let hitbox = window.insert_hitbox(bounds, HitboxBehavior::Normal);
9483 let gutter_hitbox = window.insert_hitbox(
9484 gutter_bounds(bounds, gutter_dimensions),
9485 HitboxBehavior::Normal,
9486 );
9487 let text_hitbox = window.insert_hitbox(
9488 Bounds {
9489 origin: gutter_hitbox.top_right(),
9490 size: size(text_width, bounds.size.height),
9491 },
9492 HitboxBehavior::Normal,
9493 );
9494
9495 // Offset the content_bounds from the text_bounds by the gutter margin (which
9496 // is roughly half a character wide) to make hit testing work more like how we want.
9497 let content_offset = point(editor_margins.gutter.margin, Pixels::ZERO);
9498 let content_origin = text_hitbox.origin + content_offset;
9499
9500 let height_in_lines = f64::from(bounds.size.height / line_height);
9501 let max_row = snapshot.max_point().row().as_f64();
9502
9503 // Calculate how much of the editor is clipped by parent containers (e.g., List).
9504 // This allows us to only render lines that are actually visible, which is
9505 // critical for performance when large AutoHeight editors are inside Lists.
9506 let visible_bounds = window.content_mask().bounds;
9507 let clipped_top = (visible_bounds.origin.y - bounds.origin.y).max(px(0.));
9508 let clipped_top_in_lines = f64::from(clipped_top / line_height);
9509 let visible_height_in_lines =
9510 f64::from(visible_bounds.size.height / line_height);
9511
9512 // The max scroll position for the top of the window
9513 let max_scroll_top = if matches!(
9514 snapshot.mode,
9515 EditorMode::SingleLine
9516 | EditorMode::AutoHeight { .. }
9517 | EditorMode::Full {
9518 sizing_behavior: SizingBehavior::ExcludeOverscrollMargin
9519 | SizingBehavior::SizeByContent,
9520 ..
9521 }
9522 ) {
9523 (max_row - height_in_lines + 1.).max(0.)
9524 } else {
9525 let settings = EditorSettings::get_global(cx);
9526 match settings.scroll_beyond_last_line {
9527 ScrollBeyondLastLine::OnePage => max_row,
9528 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
9529 ScrollBeyondLastLine::VerticalScrollMargin => {
9530 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
9531 .max(0.)
9532 }
9533 }
9534 };
9535
9536 let (
9537 autoscroll_request,
9538 autoscroll_containing_element,
9539 needs_horizontal_autoscroll,
9540 ) = self.editor.update(cx, |editor, cx| {
9541 let autoscroll_request = editor.scroll_manager.take_autoscroll_request();
9542
9543 let autoscroll_containing_element =
9544 autoscroll_request.is_some() || editor.has_pending_selection();
9545
9546 let (needs_horizontal_autoscroll, was_scrolled) = editor
9547 .autoscroll_vertically(
9548 bounds,
9549 line_height,
9550 max_scroll_top,
9551 autoscroll_request,
9552 window,
9553 cx,
9554 );
9555 if was_scrolled.0 {
9556 snapshot = editor.snapshot(window, cx);
9557 }
9558 (
9559 autoscroll_request,
9560 autoscroll_containing_element,
9561 needs_horizontal_autoscroll,
9562 )
9563 });
9564
9565 let mut scroll_position = snapshot.scroll_position();
9566 // The scroll position is a fractional point, the whole number of which represents
9567 // the top of the window in terms of display rows.
9568 // We add clipped_top_in_lines to skip rows that are clipped by parent containers,
9569 // but we don't modify scroll_position itself since the parent handles positioning.
9570 let max_row = snapshot.max_point().row();
9571 let start_row = cmp::min(
9572 DisplayRow((scroll_position.y + clipped_top_in_lines).floor() as u32),
9573 max_row,
9574 );
9575 let end_row = cmp::min(
9576 (scroll_position.y + clipped_top_in_lines + visible_height_in_lines).ceil()
9577 as u32,
9578 max_row.next_row().0,
9579 );
9580 let end_row = DisplayRow(end_row);
9581
9582 let row_infos = snapshot // note we only get the visual range
9583 .row_infos(start_row)
9584 .take((start_row..end_row).len())
9585 .collect::<Vec<RowInfo>>();
9586 let is_row_soft_wrapped = |row: usize| {
9587 row_infos
9588 .get(row)
9589 .is_none_or(|info| info.buffer_row.is_none())
9590 };
9591
9592 let start_anchor = if start_row == Default::default() {
9593 Anchor::min()
9594 } else {
9595 snapshot.buffer_snapshot().anchor_before(
9596 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
9597 )
9598 };
9599 let end_anchor = if end_row > max_row {
9600 Anchor::max()
9601 } else {
9602 snapshot.buffer_snapshot().anchor_before(
9603 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
9604 )
9605 };
9606
9607 let mut highlighted_rows = self
9608 .editor
9609 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
9610
9611 let is_light = cx.theme().appearance().is_light();
9612
9613 let mut highlighted_ranges = self
9614 .editor_with_selections(cx)
9615 .map(|editor| {
9616 editor.read(cx).background_highlights_in_range(
9617 start_anchor..end_anchor,
9618 &snapshot.display_snapshot,
9619 cx.theme(),
9620 )
9621 })
9622 .unwrap_or_default();
9623
9624 for (ix, row_info) in row_infos.iter().enumerate() {
9625 let Some(diff_status) = row_info.diff_status else {
9626 continue;
9627 };
9628
9629 let background_color = match diff_status.kind {
9630 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
9631 DiffHunkStatusKind::Deleted => {
9632 cx.theme().colors().version_control_deleted
9633 }
9634 DiffHunkStatusKind::Modified => {
9635 debug_panic!("modified diff status for row info");
9636 continue;
9637 }
9638 };
9639
9640 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
9641
9642 let hollow_highlight = LineHighlight {
9643 background: (background_color.opacity(if is_light {
9644 0.08
9645 } else {
9646 0.06
9647 }))
9648 .into(),
9649 border: Some(if is_light {
9650 background_color.opacity(0.48)
9651 } else {
9652 background_color.opacity(0.36)
9653 }),
9654 include_gutter: true,
9655 type_id: None,
9656 };
9657
9658 let filled_highlight = LineHighlight {
9659 background: solid_background(background_color.opacity(hunk_opacity)),
9660 border: None,
9661 include_gutter: true,
9662 type_id: None,
9663 };
9664
9665 let background = if Self::diff_hunk_hollow(diff_status, cx) {
9666 hollow_highlight
9667 } else {
9668 filled_highlight
9669 };
9670
9671 let base_display_point =
9672 DisplayPoint::new(start_row + DisplayRow(ix as u32), 0);
9673
9674 highlighted_rows
9675 .entry(base_display_point.row())
9676 .or_insert(background);
9677 }
9678
9679 let highlighted_gutter_ranges =
9680 self.editor.read(cx).gutter_highlights_in_range(
9681 start_anchor..end_anchor,
9682 &snapshot.display_snapshot,
9683 cx,
9684 );
9685
9686 let document_colors = self
9687 .editor
9688 .read(cx)
9689 .colors
9690 .as_ref()
9691 .map(|colors| colors.editor_display_highlights(&snapshot));
9692 let redacted_ranges = self.editor.read(cx).redacted_ranges(
9693 start_anchor..end_anchor,
9694 &snapshot.display_snapshot,
9695 cx,
9696 );
9697
9698 let (local_selections, selected_buffer_ids, latest_selection_anchors): (
9699 Vec<Selection<Point>>,
9700 Vec<BufferId>,
9701 HashMap<BufferId, Anchor>,
9702 ) = self
9703 .editor_with_selections(cx)
9704 .map(|editor| {
9705 editor.update(cx, |editor, cx| {
9706 let all_selections =
9707 editor.selections.all::<Point>(&snapshot.display_snapshot);
9708 let all_anchor_selections =
9709 editor.selections.all_anchors(&snapshot.display_snapshot);
9710 let selected_buffer_ids =
9711 if editor.buffer_kind(cx) == ItemBufferKind::Singleton {
9712 Vec::new()
9713 } else {
9714 let mut selected_buffer_ids =
9715 Vec::with_capacity(all_selections.len());
9716
9717 for selection in all_selections {
9718 for buffer_id in snapshot
9719 .buffer_snapshot()
9720 .buffer_ids_for_range(selection.range())
9721 {
9722 if selected_buffer_ids.last() != Some(&buffer_id) {
9723 selected_buffer_ids.push(buffer_id);
9724 }
9725 }
9726 }
9727
9728 selected_buffer_ids
9729 };
9730
9731 let mut selections = editor.selections.disjoint_in_range(
9732 start_anchor..end_anchor,
9733 &snapshot.display_snapshot,
9734 );
9735 selections
9736 .extend(editor.selections.pending(&snapshot.display_snapshot));
9737
9738 let mut anchors_by_buffer: HashMap<BufferId, (usize, Anchor)> =
9739 HashMap::default();
9740 for selection in all_anchor_selections.iter() {
9741 let head = selection.head();
9742 if let Some(buffer_id) = head.text_anchor.buffer_id {
9743 anchors_by_buffer
9744 .entry(buffer_id)
9745 .and_modify(|(latest_id, latest_anchor)| {
9746 if selection.id > *latest_id {
9747 *latest_id = selection.id;
9748 *latest_anchor = head;
9749 }
9750 })
9751 .or_insert((selection.id, head));
9752 }
9753 }
9754 let latest_selection_anchors = anchors_by_buffer
9755 .into_iter()
9756 .map(|(buffer_id, (_, anchor))| (buffer_id, anchor))
9757 .collect();
9758
9759 (selections, selected_buffer_ids, latest_selection_anchors)
9760 })
9761 })
9762 .unwrap_or_else(|| (Vec::new(), Vec::new(), HashMap::default()));
9763
9764 let (selections, mut active_rows, newest_selection_head) = self
9765 .layout_selections(
9766 start_anchor,
9767 end_anchor,
9768 &local_selections,
9769 &snapshot,
9770 start_row,
9771 end_row,
9772 window,
9773 cx,
9774 );
9775
9776 // relative rows are based on newest selection, even outside the visible area
9777 let current_selection_head = self.editor.update(cx, |editor, cx| {
9778 (editor.selections.count() != 0).then(|| {
9779 let newest = editor
9780 .selections
9781 .newest::<Point>(&editor.display_snapshot(cx));
9782
9783 SelectionLayout::new(
9784 newest,
9785 editor.selections.line_mode(),
9786 editor.cursor_offset_on_selection,
9787 editor.cursor_shape,
9788 &snapshot,
9789 true,
9790 true,
9791 None,
9792 )
9793 .head
9794 .row()
9795 })
9796 });
9797
9798 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
9799 editor.active_breakpoints(start_row..end_row, window, cx)
9800 });
9801 for (display_row, (_, bp, state)) in &breakpoint_rows {
9802 if bp.is_enabled() && state.is_none_or(|s| s.verified) {
9803 active_rows.entry(*display_row).or_default().breakpoint = true;
9804 }
9805 }
9806
9807 let line_numbers = self.layout_line_numbers(
9808 Some(&gutter_hitbox),
9809 gutter_dimensions,
9810 line_height,
9811 scroll_position,
9812 start_row..end_row,
9813 &row_infos,
9814 &active_rows,
9815 current_selection_head,
9816 &snapshot,
9817 window,
9818 cx,
9819 );
9820
9821 // We add the gutter breakpoint indicator to breakpoint_rows after painting
9822 // line numbers so we don't paint a line number debug accent color if a user
9823 // has their mouse over that line when a breakpoint isn't there
9824 self.editor.update(cx, |editor, _| {
9825 if let Some(phantom_breakpoint) = &mut editor
9826 .gutter_breakpoint_indicator
9827 .0
9828 .filter(|phantom_breakpoint| phantom_breakpoint.is_active)
9829 {
9830 // Is there a non-phantom breakpoint on this line?
9831 phantom_breakpoint.collides_with_existing_breakpoint = true;
9832 breakpoint_rows
9833 .entry(phantom_breakpoint.display_row)
9834 .or_insert_with(|| {
9835 let position = snapshot.display_point_to_anchor(
9836 DisplayPoint::new(phantom_breakpoint.display_row, 0),
9837 Bias::Right,
9838 );
9839 let breakpoint = Breakpoint::new_standard();
9840 phantom_breakpoint.collides_with_existing_breakpoint = false;
9841 (position, breakpoint, None)
9842 });
9843 }
9844 });
9845
9846 let mut expand_toggles =
9847 window.with_element_namespace("expand_toggles", |window| {
9848 self.layout_expand_toggles(
9849 &gutter_hitbox,
9850 gutter_dimensions,
9851 em_width,
9852 line_height,
9853 scroll_position,
9854 &row_infos,
9855 window,
9856 cx,
9857 )
9858 });
9859
9860 let mut crease_toggles =
9861 window.with_element_namespace("crease_toggles", |window| {
9862 self.layout_crease_toggles(
9863 start_row..end_row,
9864 &row_infos,
9865 &active_rows,
9866 &snapshot,
9867 window,
9868 cx,
9869 )
9870 });
9871 let crease_trailers =
9872 window.with_element_namespace("crease_trailers", |window| {
9873 self.layout_crease_trailers(
9874 row_infos.iter().cloned(),
9875 &snapshot,
9876 window,
9877 cx,
9878 )
9879 });
9880
9881 let display_hunks = self.layout_gutter_diff_hunks(
9882 line_height,
9883 &gutter_hitbox,
9884 start_row..end_row,
9885 &snapshot,
9886 window,
9887 cx,
9888 );
9889
9890 Self::layout_word_diff_highlights(
9891 &display_hunks,
9892 &row_infos,
9893 start_row,
9894 &snapshot,
9895 &mut highlighted_ranges,
9896 cx,
9897 );
9898
9899 let merged_highlighted_ranges =
9900 if let Some((_, colors)) = document_colors.as_ref() {
9901 &highlighted_ranges
9902 .clone()
9903 .into_iter()
9904 .chain(colors.clone())
9905 .collect()
9906 } else {
9907 &highlighted_ranges
9908 };
9909 let bg_segments_per_row = Self::bg_segments_per_row(
9910 start_row..end_row,
9911 &selections,
9912 &merged_highlighted_ranges,
9913 self.style.background,
9914 );
9915
9916 let mut line_layouts = Self::layout_lines(
9917 start_row..end_row,
9918 &snapshot,
9919 &self.style,
9920 editor_width,
9921 is_row_soft_wrapped,
9922 &bg_segments_per_row,
9923 window,
9924 cx,
9925 );
9926 let new_renderer_widths = (!is_minimap).then(|| {
9927 line_layouts
9928 .iter()
9929 .flat_map(|layout| &layout.fragments)
9930 .filter_map(|fragment| {
9931 if let LineFragment::Element { id, size, .. } = fragment {
9932 Some((*id, size.width))
9933 } else {
9934 None
9935 }
9936 })
9937 });
9938 if new_renderer_widths.is_some_and(|new_renderer_widths| {
9939 self.editor.update(cx, |editor, cx| {
9940 editor.update_renderer_widths(new_renderer_widths, cx)
9941 })
9942 }) {
9943 // If the fold widths have changed, we need to prepaint
9944 // the element again to account for any changes in
9945 // wrapping.
9946 if request_layout.can_prepaint() {
9947 return self.prepaint(
9948 None,
9949 _inspector_id,
9950 bounds,
9951 request_layout,
9952 window,
9953 cx,
9954 );
9955 } else {
9956 debug_panic!(concat!(
9957 "skipping recursive prepaint at max depth. ",
9958 "renderer widths may be stale."
9959 ));
9960 }
9961 }
9962
9963 let longest_line_blame_width = self
9964 .editor
9965 .update(cx, |editor, cx| {
9966 if !editor.show_git_blame_inline {
9967 return None;
9968 }
9969 let blame = editor.blame.as_ref()?;
9970 let (_, blame_entry) = blame
9971 .update(cx, |blame, cx| {
9972 let row_infos =
9973 snapshot.row_infos(snapshot.longest_row()).next()?;
9974 blame.blame_for_rows(&[row_infos], cx).next()
9975 })
9976 .flatten()?;
9977 let mut element = render_inline_blame_entry(blame_entry, style, cx)?;
9978 let inline_blame_padding =
9979 ProjectSettings::get_global(cx).git.inline_blame.padding as f32
9980 * em_advance;
9981 Some(
9982 element
9983 .layout_as_root(AvailableSpace::min_size(), window, cx)
9984 .width
9985 + inline_blame_padding,
9986 )
9987 })
9988 .unwrap_or(Pixels::ZERO);
9989
9990 let longest_line_width = layout_line(
9991 snapshot.longest_row(),
9992 &snapshot,
9993 style,
9994 editor_width,
9995 is_row_soft_wrapped,
9996 window,
9997 cx,
9998 )
9999 .width;
10000
10001 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
10002 text_hitbox.bounds,
10003 glyph_grid_cell,
10004 size(
10005 longest_line_width,
10006 Pixels::from(max_row.as_f64() * f64::from(line_height)),
10007 ),
10008 longest_line_blame_width,
10009 EditorSettings::get_global(cx),
10010 );
10011
10012 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
10013
10014 let sticky_header_excerpt = if snapshot.buffer_snapshot().show_headers() {
10015 snapshot.sticky_header_excerpt(scroll_position.y)
10016 } else {
10017 None
10018 };
10019 let sticky_header_excerpt_id =
10020 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
10021
10022 let blocks = (!is_minimap)
10023 .then(|| {
10024 window.with_element_namespace("blocks", |window| {
10025 self.render_blocks(
10026 start_row..end_row,
10027 &snapshot,
10028 &hitbox,
10029 &text_hitbox,
10030 editor_width,
10031 &mut scroll_width,
10032 &editor_margins,
10033 em_width,
10034 gutter_dimensions.full_width(),
10035 line_height,
10036 &mut line_layouts,
10037 &local_selections,
10038 &selected_buffer_ids,
10039 &latest_selection_anchors,
10040 is_row_soft_wrapped,
10041 sticky_header_excerpt_id,
10042 window,
10043 cx,
10044 )
10045 })
10046 })
10047 .unwrap_or_default();
10048 let RenderBlocksOutput {
10049 mut blocks,
10050 row_block_types,
10051 resized_blocks,
10052 } = blocks;
10053 if let Some(resized_blocks) = resized_blocks {
10054 self.editor.update(cx, |editor, cx| {
10055 editor.resize_blocks(
10056 resized_blocks,
10057 autoscroll_request.map(|(autoscroll, _)| autoscroll),
10058 cx,
10059 )
10060 });
10061 if request_layout.can_prepaint() {
10062 return self.prepaint(
10063 None,
10064 _inspector_id,
10065 bounds,
10066 request_layout,
10067 window,
10068 cx,
10069 );
10070 } else {
10071 debug_panic!(concat!(
10072 "skipping recursive prepaint at max depth. ",
10073 "block layout may be stale."
10074 ));
10075 }
10076 }
10077
10078 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
10079 window.with_element_namespace("blocks", |window| {
10080 self.layout_sticky_buffer_header(
10081 sticky_header_excerpt,
10082 scroll_position,
10083 line_height,
10084 right_margin,
10085 &snapshot,
10086 &hitbox,
10087 &selected_buffer_ids,
10088 &blocks,
10089 &latest_selection_anchors,
10090 window,
10091 cx,
10092 )
10093 })
10094 });
10095
10096 let start_buffer_row =
10097 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot()).row);
10098 let end_buffer_row =
10099 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot()).row);
10100
10101 let scroll_max: gpui::Point<ScrollPixelOffset> = point(
10102 ScrollPixelOffset::from(
10103 ((scroll_width - editor_width) / em_advance).max(0.0),
10104 ),
10105 max_scroll_top,
10106 );
10107
10108 self.editor.update(cx, |editor, cx| {
10109 if editor.scroll_manager.clamp_scroll_left(scroll_max.x) {
10110 scroll_position.x = scroll_position.x.min(scroll_max.x);
10111 }
10112
10113 if needs_horizontal_autoscroll.0
10114 && let Some(new_scroll_position) = editor.autoscroll_horizontally(
10115 start_row,
10116 editor_width,
10117 scroll_width,
10118 em_advance,
10119 &line_layouts,
10120 autoscroll_request,
10121 window,
10122 cx,
10123 )
10124 {
10125 scroll_position = new_scroll_position;
10126 }
10127 });
10128
10129 let scroll_pixel_position = point(
10130 scroll_position.x * f64::from(em_advance),
10131 scroll_position.y * f64::from(line_height),
10132 );
10133 let sticky_headers = if !is_minimap
10134 && is_singleton
10135 && EditorSettings::get_global(cx).sticky_scroll.enabled
10136 {
10137 let relative = self.editor.read(cx).relative_line_numbers(cx);
10138 self.layout_sticky_headers(
10139 &snapshot,
10140 editor_width,
10141 is_row_soft_wrapped,
10142 line_height,
10143 scroll_pixel_position,
10144 content_origin,
10145 &gutter_dimensions,
10146 &gutter_hitbox,
10147 &text_hitbox,
10148 &style,
10149 relative,
10150 current_selection_head,
10151 window,
10152 cx,
10153 )
10154 } else {
10155 None
10156 };
10157 self.editor.update(cx, |editor, _| {
10158 editor.scroll_manager.set_sticky_header_line_count(
10159 sticky_headers.as_ref().map_or(0, |h| h.lines.len()),
10160 );
10161 });
10162 let indent_guides = self.layout_indent_guides(
10163 content_origin,
10164 text_hitbox.origin,
10165 start_buffer_row..end_buffer_row,
10166 scroll_pixel_position,
10167 line_height,
10168 &snapshot,
10169 window,
10170 cx,
10171 );
10172
10173 let crease_trailers =
10174 window.with_element_namespace("crease_trailers", |window| {
10175 self.prepaint_crease_trailers(
10176 crease_trailers,
10177 &line_layouts,
10178 line_height,
10179 content_origin,
10180 scroll_pixel_position,
10181 em_width,
10182 window,
10183 cx,
10184 )
10185 });
10186
10187 let (edit_prediction_popover, edit_prediction_popover_origin) = self
10188 .editor
10189 .update(cx, |editor, cx| {
10190 editor.render_edit_prediction_popover(
10191 &text_hitbox.bounds,
10192 content_origin,
10193 right_margin,
10194 &snapshot,
10195 start_row..end_row,
10196 scroll_position.y,
10197 scroll_position.y + height_in_lines,
10198 &line_layouts,
10199 line_height,
10200 scroll_position,
10201 scroll_pixel_position,
10202 newest_selection_head,
10203 editor_width,
10204 style,
10205 window,
10206 cx,
10207 )
10208 })
10209 .unzip();
10210
10211 let mut inline_diagnostics = self.layout_inline_diagnostics(
10212 &line_layouts,
10213 &crease_trailers,
10214 &row_block_types,
10215 content_origin,
10216 scroll_position,
10217 scroll_pixel_position,
10218 edit_prediction_popover_origin,
10219 start_row,
10220 end_row,
10221 line_height,
10222 em_width,
10223 style,
10224 window,
10225 cx,
10226 );
10227
10228 let mut inline_blame_layout = None;
10229 let mut inline_code_actions = None;
10230 if let Some(newest_selection_head) = newest_selection_head {
10231 let display_row = newest_selection_head.row();
10232 if (start_row..end_row).contains(&display_row)
10233 && !row_block_types.contains_key(&display_row)
10234 {
10235 inline_code_actions = self.layout_inline_code_actions(
10236 newest_selection_head,
10237 content_origin,
10238 scroll_position,
10239 scroll_pixel_position,
10240 line_height,
10241 &snapshot,
10242 window,
10243 cx,
10244 );
10245
10246 let line_ix = display_row.minus(start_row) as usize;
10247 if let (Some(row_info), Some(line_layout), Some(crease_trailer)) = (
10248 row_infos.get(line_ix),
10249 line_layouts.get(line_ix),
10250 crease_trailers.get(line_ix),
10251 ) {
10252 let crease_trailer_layout = crease_trailer.as_ref();
10253 if let Some(layout) = self.layout_inline_blame(
10254 display_row,
10255 row_info,
10256 line_layout,
10257 crease_trailer_layout,
10258 em_width,
10259 content_origin,
10260 scroll_position,
10261 scroll_pixel_position,
10262 line_height,
10263 window,
10264 cx,
10265 ) {
10266 inline_blame_layout = Some(layout);
10267 // Blame overrides inline diagnostics
10268 inline_diagnostics.remove(&display_row);
10269 }
10270 } else {
10271 log::error!(
10272 "bug: line_ix {} is out of bounds - row_infos.len(): {}, \
10273 line_layouts.len(): {}, \
10274 crease_trailers.len(): {}",
10275 line_ix,
10276 row_infos.len(),
10277 line_layouts.len(),
10278 crease_trailers.len(),
10279 );
10280 }
10281 }
10282 }
10283
10284 let blamed_display_rows = self.layout_blame_entries(
10285 &row_infos,
10286 em_width,
10287 scroll_position,
10288 line_height,
10289 &gutter_hitbox,
10290 gutter_dimensions.git_blame_entries_width,
10291 window,
10292 cx,
10293 );
10294
10295 let line_elements = self.prepaint_lines(
10296 start_row,
10297 &mut line_layouts,
10298 line_height,
10299 scroll_position,
10300 scroll_pixel_position,
10301 content_origin,
10302 window,
10303 cx,
10304 );
10305
10306 window.with_element_namespace("blocks", |window| {
10307 self.layout_blocks(
10308 &mut blocks,
10309 &hitbox,
10310 line_height,
10311 scroll_position,
10312 scroll_pixel_position,
10313 window,
10314 cx,
10315 );
10316 });
10317
10318 let cursors = self.collect_cursors(&snapshot, cx);
10319 let visible_row_range = start_row..end_row;
10320 let non_visible_cursors = cursors
10321 .iter()
10322 .any(|c| !visible_row_range.contains(&c.0.row()));
10323
10324 let visible_cursors = self.layout_visible_cursors(
10325 &snapshot,
10326 &selections,
10327 &row_block_types,
10328 start_row..end_row,
10329 &line_layouts,
10330 &text_hitbox,
10331 content_origin,
10332 scroll_position,
10333 scroll_pixel_position,
10334 line_height,
10335 em_width,
10336 em_advance,
10337 autoscroll_containing_element,
10338 window,
10339 cx,
10340 );
10341
10342 let scrollbars_layout = self.layout_scrollbars(
10343 &snapshot,
10344 &scrollbar_layout_information,
10345 content_offset,
10346 scroll_position,
10347 non_visible_cursors,
10348 right_margin,
10349 editor_width,
10350 window,
10351 cx,
10352 );
10353
10354 let gutter_settings = EditorSettings::get_global(cx).gutter;
10355
10356 let context_menu_layout =
10357 if let Some(newest_selection_head) = newest_selection_head {
10358 let newest_selection_point =
10359 newest_selection_head.to_point(&snapshot.display_snapshot);
10360 if (start_row..end_row).contains(&newest_selection_head.row()) {
10361 self.layout_cursor_popovers(
10362 line_height,
10363 &text_hitbox,
10364 content_origin,
10365 right_margin,
10366 start_row,
10367 scroll_pixel_position,
10368 &line_layouts,
10369 newest_selection_head,
10370 newest_selection_point,
10371 style,
10372 window,
10373 cx,
10374 )
10375 } else {
10376 None
10377 }
10378 } else {
10379 None
10380 };
10381
10382 self.layout_gutter_menu(
10383 line_height,
10384 &text_hitbox,
10385 content_origin,
10386 right_margin,
10387 scroll_pixel_position,
10388 gutter_dimensions.width - gutter_dimensions.left_padding,
10389 window,
10390 cx,
10391 );
10392
10393 let test_indicators = if gutter_settings.runnables {
10394 self.layout_run_indicators(
10395 line_height,
10396 start_row..end_row,
10397 &row_infos,
10398 scroll_position,
10399 &gutter_dimensions,
10400 &gutter_hitbox,
10401 &snapshot,
10402 &mut breakpoint_rows,
10403 window,
10404 cx,
10405 )
10406 } else {
10407 Vec::new()
10408 };
10409
10410 let show_breakpoints = snapshot
10411 .show_breakpoints
10412 .unwrap_or(gutter_settings.breakpoints);
10413 let breakpoints = if show_breakpoints {
10414 self.layout_breakpoints(
10415 line_height,
10416 start_row..end_row,
10417 scroll_position,
10418 &gutter_dimensions,
10419 &gutter_hitbox,
10420 &snapshot,
10421 breakpoint_rows,
10422 &row_infos,
10423 window,
10424 cx,
10425 )
10426 } else {
10427 Vec::new()
10428 };
10429
10430 let git_gutter_width = Self::gutter_strip_width(line_height)
10431 + gutter_dimensions
10432 .git_blame_entries_width
10433 .unwrap_or_default();
10434 let available_width = gutter_dimensions.left_padding - git_gutter_width;
10435
10436 let max_line_number_length = self
10437 .editor
10438 .read(cx)
10439 .buffer()
10440 .read(cx)
10441 .snapshot(cx)
10442 .widest_line_number()
10443 .ilog10()
10444 + 1;
10445
10446 let diff_review_button = self
10447 .should_render_diff_review_button(start_row..end_row, &row_infos, cx)
10448 .map(|(display_row, buffer_row)| {
10449 let is_wide = max_line_number_length
10450 >= EditorSettings::get_global(cx).gutter.min_line_number_digits
10451 as u32
10452 && buffer_row.is_some_and(|row| {
10453 (row + 1).ilog10() + 1 == max_line_number_length
10454 })
10455 || gutter_dimensions.right_padding == px(0.);
10456
10457 let button_width = if is_wide {
10458 available_width - px(6.)
10459 } else {
10460 available_width + em_width - px(6.)
10461 };
10462
10463 prepaint_gutter_button(
10464 Self::diff_review_button(button_width, cx),
10465 display_row,
10466 line_height,
10467 &gutter_dimensions,
10468 scroll_position,
10469 &gutter_hitbox,
10470 window,
10471 cx,
10472 )
10473 });
10474
10475 self.layout_signature_help(
10476 &hitbox,
10477 content_origin,
10478 scroll_pixel_position,
10479 newest_selection_head,
10480 start_row,
10481 &line_layouts,
10482 line_height,
10483 em_width,
10484 context_menu_layout,
10485 window,
10486 cx,
10487 );
10488
10489 if !cx.has_active_drag() {
10490 self.layout_hover_popovers(
10491 &snapshot,
10492 &hitbox,
10493 start_row..end_row,
10494 content_origin,
10495 scroll_pixel_position,
10496 &line_layouts,
10497 line_height,
10498 em_width,
10499 context_menu_layout,
10500 window,
10501 cx,
10502 );
10503
10504 self.layout_blame_popover(&snapshot, &hitbox, line_height, window, cx);
10505 }
10506
10507 let mouse_context_menu = self.layout_mouse_context_menu(
10508 &snapshot,
10509 start_row..end_row,
10510 content_origin,
10511 window,
10512 cx,
10513 );
10514
10515 window.with_element_namespace("crease_toggles", |window| {
10516 self.prepaint_crease_toggles(
10517 &mut crease_toggles,
10518 line_height,
10519 &gutter_dimensions,
10520 gutter_settings,
10521 scroll_pixel_position,
10522 &gutter_hitbox,
10523 window,
10524 cx,
10525 )
10526 });
10527
10528 window.with_element_namespace("expand_toggles", |window| {
10529 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
10530 });
10531
10532 let wrap_guides = self.layout_wrap_guides(
10533 em_advance,
10534 scroll_position,
10535 content_origin,
10536 scrollbars_layout.as_ref(),
10537 vertical_scrollbar_width,
10538 &hitbox,
10539 window,
10540 cx,
10541 );
10542
10543 let minimap = window.with_element_namespace("minimap", |window| {
10544 self.layout_minimap(
10545 &snapshot,
10546 minimap_width,
10547 scroll_position,
10548 &scrollbar_layout_information,
10549 scrollbars_layout.as_ref(),
10550 window,
10551 cx,
10552 )
10553 });
10554
10555 let invisible_symbol_font_size = font_size / 2.;
10556 let whitespace_map = &self
10557 .editor
10558 .read(cx)
10559 .buffer
10560 .read(cx)
10561 .language_settings(cx)
10562 .whitespace_map;
10563
10564 let tab_char = whitespace_map.tab.clone();
10565 let tab_len = tab_char.len();
10566 let tab_invisible = window.text_system().shape_line(
10567 tab_char,
10568 invisible_symbol_font_size,
10569 &[TextRun {
10570 len: tab_len,
10571 font: self.style.text.font(),
10572 color: cx.theme().colors().editor_invisible,
10573 ..Default::default()
10574 }],
10575 None,
10576 );
10577
10578 let space_char = whitespace_map.space.clone();
10579 let space_len = space_char.len();
10580 let space_invisible = window.text_system().shape_line(
10581 space_char,
10582 invisible_symbol_font_size,
10583 &[TextRun {
10584 len: space_len,
10585 font: self.style.text.font(),
10586 color: cx.theme().colors().editor_invisible,
10587 ..Default::default()
10588 }],
10589 None,
10590 );
10591
10592 let mode = snapshot.mode.clone();
10593
10594 let (diff_hunk_controls, diff_hunk_control_bounds) = if is_read_only {
10595 (vec![], vec![])
10596 } else {
10597 self.layout_diff_hunk_controls(
10598 start_row..end_row,
10599 &row_infos,
10600 &text_hitbox,
10601 newest_selection_head,
10602 line_height,
10603 right_margin,
10604 scroll_pixel_position,
10605 &display_hunks,
10606 &highlighted_rows,
10607 self.editor.clone(),
10608 window,
10609 cx,
10610 )
10611 };
10612
10613 let position_map = Rc::new(PositionMap {
10614 size: bounds.size,
10615 visible_row_range,
10616 scroll_position,
10617 scroll_pixel_position,
10618 scroll_max,
10619 line_layouts,
10620 line_height,
10621 em_width,
10622 em_advance,
10623 snapshot,
10624 text_align: self.style.text.text_align,
10625 content_width: text_hitbox.size.width,
10626 gutter_hitbox: gutter_hitbox.clone(),
10627 text_hitbox: text_hitbox.clone(),
10628 inline_blame_bounds: inline_blame_layout
10629 .as_ref()
10630 .map(|layout| (layout.bounds, layout.buffer_id, layout.entry.clone())),
10631 display_hunks: display_hunks.clone(),
10632 diff_hunk_control_bounds,
10633 });
10634
10635 self.editor.update(cx, |editor, _| {
10636 editor.last_position_map = Some(position_map.clone())
10637 });
10638
10639 EditorLayout {
10640 mode,
10641 position_map,
10642 visible_display_row_range: start_row..end_row,
10643 wrap_guides,
10644 indent_guides,
10645 hitbox,
10646 gutter_hitbox,
10647 display_hunks,
10648 content_origin,
10649 scrollbars_layout,
10650 minimap,
10651 active_rows,
10652 highlighted_rows,
10653 highlighted_ranges,
10654 highlighted_gutter_ranges,
10655 redacted_ranges,
10656 document_colors,
10657 line_elements,
10658 line_numbers,
10659 blamed_display_rows,
10660 inline_diagnostics,
10661 inline_blame_layout,
10662 inline_code_actions,
10663 blocks,
10664 cursors,
10665 visible_cursors,
10666 selections,
10667 edit_prediction_popover,
10668 diff_hunk_controls,
10669 mouse_context_menu,
10670 test_indicators,
10671 breakpoints,
10672 diff_review_button,
10673 crease_toggles,
10674 crease_trailers,
10675 tab_invisible,
10676 space_invisible,
10677 sticky_buffer_header,
10678 sticky_headers,
10679 expand_toggles,
10680 text_align: self.style.text.text_align,
10681 content_width: text_hitbox.size.width,
10682 }
10683 })
10684 })
10685 })
10686 }
10687
10688 fn paint(
10689 &mut self,
10690 _: Option<&GlobalElementId>,
10691 _inspector_id: Option<&gpui::InspectorElementId>,
10692 bounds: Bounds<gpui::Pixels>,
10693 _: &mut Self::RequestLayoutState,
10694 layout: &mut Self::PrepaintState,
10695 window: &mut Window,
10696 cx: &mut App,
10697 ) {
10698 if !layout.mode.is_minimap() {
10699 let focus_handle = self.editor.focus_handle(cx);
10700 let key_context = self
10701 .editor
10702 .update(cx, |editor, cx| editor.key_context(window, cx));
10703
10704 window.set_key_context(key_context);
10705 window.handle_input(
10706 &focus_handle,
10707 ElementInputHandler::new(bounds, self.editor.clone()),
10708 cx,
10709 );
10710 self.register_actions(window, cx);
10711 self.register_key_listeners(window, cx, layout);
10712 }
10713
10714 let text_style = TextStyleRefinement {
10715 font_size: Some(self.style.text.font_size),
10716 line_height: Some(self.style.text.line_height),
10717 ..Default::default()
10718 };
10719 let rem_size = self.rem_size(cx);
10720 window.with_rem_size(rem_size, |window| {
10721 window.with_text_style(Some(text_style), |window| {
10722 window.with_content_mask(Some(ContentMask { bounds }), |window| {
10723 self.paint_mouse_listeners(layout, window, cx);
10724 self.paint_background(layout, window, cx);
10725 self.paint_indent_guides(layout, window, cx);
10726
10727 if layout.gutter_hitbox.size.width > Pixels::ZERO {
10728 self.paint_blamed_display_rows(layout, window, cx);
10729 self.paint_line_numbers(layout, window, cx);
10730 }
10731
10732 self.paint_text(layout, window, cx);
10733
10734 if layout.gutter_hitbox.size.width > Pixels::ZERO {
10735 self.paint_gutter_highlights(layout, window, cx);
10736 self.paint_gutter_indicators(layout, window, cx);
10737 }
10738
10739 if !layout.blocks.is_empty() {
10740 window.with_element_namespace("blocks", |window| {
10741 self.paint_blocks(layout, window, cx);
10742 });
10743 }
10744
10745 window.with_element_namespace("blocks", |window| {
10746 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
10747 sticky_header.paint(window, cx)
10748 }
10749 });
10750
10751 self.paint_sticky_headers(layout, window, cx);
10752 self.paint_minimap(layout, window, cx);
10753 self.paint_scrollbars(layout, window, cx);
10754 self.paint_edit_prediction_popover(layout, window, cx);
10755 self.paint_mouse_context_menu(layout, window, cx);
10756 });
10757 })
10758 })
10759 }
10760}
10761
10762pub(super) fn gutter_bounds(
10763 editor_bounds: Bounds<Pixels>,
10764 gutter_dimensions: GutterDimensions,
10765) -> Bounds<Pixels> {
10766 Bounds {
10767 origin: editor_bounds.origin,
10768 size: size(gutter_dimensions.width, editor_bounds.size.height),
10769 }
10770}
10771
10772#[derive(Clone, Copy)]
10773struct ContextMenuLayout {
10774 y_flipped: bool,
10775 bounds: Bounds<Pixels>,
10776}
10777
10778/// Holds information required for layouting the editor scrollbars.
10779struct ScrollbarLayoutInformation {
10780 /// The bounds of the editor area (excluding the content offset).
10781 editor_bounds: Bounds<Pixels>,
10782 /// The available range to scroll within the document.
10783 scroll_range: Size<Pixels>,
10784 /// The space available for one glyph in the editor.
10785 glyph_grid_cell: Size<Pixels>,
10786}
10787
10788impl ScrollbarLayoutInformation {
10789 pub fn new(
10790 editor_bounds: Bounds<Pixels>,
10791 glyph_grid_cell: Size<Pixels>,
10792 document_size: Size<Pixels>,
10793 longest_line_blame_width: Pixels,
10794 settings: &EditorSettings,
10795 ) -> Self {
10796 let vertical_overscroll = match settings.scroll_beyond_last_line {
10797 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
10798 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
10799 ScrollBeyondLastLine::VerticalScrollMargin => {
10800 (1.0 + settings.vertical_scroll_margin) as f32 * glyph_grid_cell.height
10801 }
10802 };
10803
10804 let overscroll = size(longest_line_blame_width, vertical_overscroll);
10805
10806 ScrollbarLayoutInformation {
10807 editor_bounds,
10808 scroll_range: document_size + overscroll,
10809 glyph_grid_cell,
10810 }
10811 }
10812}
10813
10814impl IntoElement for EditorElement {
10815 type Element = Self;
10816
10817 fn into_element(self) -> Self::Element {
10818 self
10819 }
10820}
10821
10822pub struct EditorLayout {
10823 position_map: Rc<PositionMap>,
10824 hitbox: Hitbox,
10825 gutter_hitbox: Hitbox,
10826 content_origin: gpui::Point<Pixels>,
10827 scrollbars_layout: Option<EditorScrollbars>,
10828 minimap: Option<MinimapLayout>,
10829 mode: EditorMode,
10830 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
10831 indent_guides: Option<Vec<IndentGuideLayout>>,
10832 visible_display_row_range: Range<DisplayRow>,
10833 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
10834 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
10835 line_elements: SmallVec<[AnyElement; 1]>,
10836 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
10837 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
10838 blamed_display_rows: Option<Vec<AnyElement>>,
10839 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
10840 inline_blame_layout: Option<InlineBlameLayout>,
10841 inline_code_actions: Option<AnyElement>,
10842 blocks: Vec<BlockLayout>,
10843 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
10844 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
10845 redacted_ranges: Vec<Range<DisplayPoint>>,
10846 cursors: Vec<(DisplayPoint, Hsla)>,
10847 visible_cursors: Vec<CursorLayout>,
10848 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
10849 test_indicators: Vec<AnyElement>,
10850 breakpoints: Vec<AnyElement>,
10851 diff_review_button: Option<AnyElement>,
10852 crease_toggles: Vec<Option<AnyElement>>,
10853 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
10854 diff_hunk_controls: Vec<AnyElement>,
10855 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
10856 edit_prediction_popover: Option<AnyElement>,
10857 mouse_context_menu: Option<AnyElement>,
10858 tab_invisible: ShapedLine,
10859 space_invisible: ShapedLine,
10860 sticky_buffer_header: Option<AnyElement>,
10861 sticky_headers: Option<StickyHeaders>,
10862 document_colors: Option<(DocumentColorsRenderMode, Vec<(Range<DisplayPoint>, Hsla)>)>,
10863 text_align: TextAlign,
10864 content_width: Pixels,
10865}
10866
10867struct StickyHeaders {
10868 lines: Vec<StickyHeaderLine>,
10869 gutter_background: Hsla,
10870 content_background: Hsla,
10871 gutter_right_padding: Pixels,
10872}
10873
10874struct StickyHeaderLine {
10875 row: DisplayRow,
10876 offset: Pixels,
10877 line: LineWithInvisibles,
10878 line_number: Option<ShapedLine>,
10879 elements: SmallVec<[AnyElement; 1]>,
10880 available_text_width: Pixels,
10881 target_anchor: Anchor,
10882 hitbox: Hitbox,
10883}
10884
10885impl EditorLayout {
10886 fn line_end_overshoot(&self) -> Pixels {
10887 0.15 * self.position_map.line_height
10888 }
10889}
10890
10891impl StickyHeaders {
10892 fn paint(
10893 &mut self,
10894 layout: &mut EditorLayout,
10895 whitespace_setting: ShowWhitespaceSetting,
10896 window: &mut Window,
10897 cx: &mut App,
10898 ) {
10899 let line_height = layout.position_map.line_height;
10900
10901 for line in self.lines.iter_mut().rev() {
10902 window.paint_layer(
10903 Bounds::new(
10904 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
10905 size(line.hitbox.size.width, line_height),
10906 ),
10907 |window| {
10908 let gutter_bounds = Bounds::new(
10909 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
10910 size(layout.gutter_hitbox.size.width, line_height),
10911 );
10912 window.paint_quad(fill(gutter_bounds, self.gutter_background));
10913
10914 let text_bounds = Bounds::new(
10915 layout.position_map.text_hitbox.origin + point(Pixels::ZERO, line.offset),
10916 size(line.available_text_width, line_height),
10917 );
10918 window.paint_quad(fill(text_bounds, self.content_background));
10919
10920 if line.hitbox.is_hovered(window) {
10921 let hover_overlay = cx.theme().colors().panel_overlay_hover;
10922 window.paint_quad(fill(gutter_bounds, hover_overlay));
10923 window.paint_quad(fill(text_bounds, hover_overlay));
10924 }
10925
10926 line.paint(
10927 layout,
10928 self.gutter_right_padding,
10929 line.available_text_width,
10930 layout.content_origin,
10931 line_height,
10932 whitespace_setting,
10933 window,
10934 cx,
10935 );
10936 },
10937 );
10938
10939 window.set_cursor_style(CursorStyle::PointingHand, &line.hitbox);
10940 }
10941 }
10942}
10943
10944impl StickyHeaderLine {
10945 fn new(
10946 row: DisplayRow,
10947 offset: Pixels,
10948 mut line: LineWithInvisibles,
10949 line_number: Option<ShapedLine>,
10950 target_anchor: Anchor,
10951 line_height: Pixels,
10952 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
10953 content_origin: gpui::Point<Pixels>,
10954 gutter_hitbox: &Hitbox,
10955 text_hitbox: &Hitbox,
10956 window: &mut Window,
10957 cx: &mut App,
10958 ) -> Self {
10959 let mut elements = SmallVec::<[AnyElement; 1]>::new();
10960 line.prepaint_with_custom_offset(
10961 line_height,
10962 scroll_pixel_position,
10963 content_origin,
10964 offset,
10965 &mut elements,
10966 window,
10967 cx,
10968 );
10969
10970 let hitbox_bounds = Bounds::new(
10971 gutter_hitbox.origin + point(Pixels::ZERO, offset),
10972 size(text_hitbox.right() - gutter_hitbox.left(), line_height),
10973 );
10974 let available_text_width =
10975 (hitbox_bounds.size.width - gutter_hitbox.size.width).max(Pixels::ZERO);
10976
10977 Self {
10978 row,
10979 offset,
10980 line,
10981 line_number,
10982 elements,
10983 available_text_width,
10984 target_anchor,
10985 hitbox: window.insert_hitbox(hitbox_bounds, HitboxBehavior::BlockMouseExceptScroll),
10986 }
10987 }
10988
10989 fn paint(
10990 &mut self,
10991 layout: &EditorLayout,
10992 gutter_right_padding: Pixels,
10993 available_text_width: Pixels,
10994 content_origin: gpui::Point<Pixels>,
10995 line_height: Pixels,
10996 whitespace_setting: ShowWhitespaceSetting,
10997 window: &mut Window,
10998 cx: &mut App,
10999 ) {
11000 window.with_content_mask(
11001 Some(ContentMask {
11002 bounds: Bounds::new(
11003 layout.position_map.text_hitbox.bounds.origin
11004 + point(Pixels::ZERO, self.offset),
11005 size(available_text_width, line_height),
11006 ),
11007 }),
11008 |window| {
11009 self.line.draw_with_custom_offset(
11010 layout,
11011 self.row,
11012 content_origin,
11013 self.offset,
11014 whitespace_setting,
11015 &[],
11016 window,
11017 cx,
11018 );
11019 for element in &mut self.elements {
11020 element.paint(window, cx);
11021 }
11022 },
11023 );
11024
11025 if let Some(line_number) = &self.line_number {
11026 let gutter_origin = layout.gutter_hitbox.origin + point(Pixels::ZERO, self.offset);
11027 let gutter_width = layout.gutter_hitbox.size.width;
11028 let origin = point(
11029 gutter_origin.x + gutter_width - gutter_right_padding - line_number.width,
11030 gutter_origin.y,
11031 );
11032 line_number
11033 .paint(origin, line_height, TextAlign::Left, None, window, cx)
11034 .log_err();
11035 }
11036 }
11037}
11038
11039#[derive(Debug)]
11040struct LineNumberSegment {
11041 shaped_line: ShapedLine,
11042 hitbox: Option<Hitbox>,
11043}
11044
11045#[derive(Debug)]
11046struct LineNumberLayout {
11047 segments: SmallVec<[LineNumberSegment; 1]>,
11048}
11049
11050struct ColoredRange<T> {
11051 start: T,
11052 end: T,
11053 color: Hsla,
11054}
11055
11056impl Along for ScrollbarAxes {
11057 type Unit = bool;
11058
11059 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
11060 match axis {
11061 ScrollbarAxis::Horizontal => self.horizontal,
11062 ScrollbarAxis::Vertical => self.vertical,
11063 }
11064 }
11065
11066 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
11067 match axis {
11068 ScrollbarAxis::Horizontal => ScrollbarAxes {
11069 horizontal: f(self.horizontal),
11070 vertical: self.vertical,
11071 },
11072 ScrollbarAxis::Vertical => ScrollbarAxes {
11073 horizontal: self.horizontal,
11074 vertical: f(self.vertical),
11075 },
11076 }
11077 }
11078}
11079
11080#[derive(Clone)]
11081struct EditorScrollbars {
11082 pub vertical: Option<ScrollbarLayout>,
11083 pub horizontal: Option<ScrollbarLayout>,
11084 pub visible: bool,
11085}
11086
11087impl EditorScrollbars {
11088 pub fn from_scrollbar_axes(
11089 show_scrollbar: ScrollbarAxes,
11090 layout_information: &ScrollbarLayoutInformation,
11091 content_offset: gpui::Point<Pixels>,
11092 scroll_position: gpui::Point<f64>,
11093 scrollbar_width: Pixels,
11094 right_margin: Pixels,
11095 editor_width: Pixels,
11096 show_scrollbars: bool,
11097 scrollbar_state: Option<&ActiveScrollbarState>,
11098 window: &mut Window,
11099 ) -> Self {
11100 let ScrollbarLayoutInformation {
11101 editor_bounds,
11102 scroll_range,
11103 glyph_grid_cell,
11104 } = layout_information;
11105
11106 let viewport_size = size(editor_width, editor_bounds.size.height);
11107
11108 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
11109 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
11110 Corner::BottomLeft,
11111 editor_bounds.bottom_left(),
11112 size(
11113 // The horizontal viewport size differs from the space available for the
11114 // horizontal scrollbar, so we have to manually stitch it together here.
11115 editor_bounds.size.width - right_margin,
11116 scrollbar_width,
11117 ),
11118 ),
11119 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
11120 Corner::TopRight,
11121 editor_bounds.top_right(),
11122 size(scrollbar_width, viewport_size.height),
11123 ),
11124 };
11125
11126 let mut create_scrollbar_layout = |axis| {
11127 let viewport_size = viewport_size.along(axis);
11128 let scroll_range = scroll_range.along(axis);
11129
11130 // We always want a vertical scrollbar track for scrollbar diagnostic visibility.
11131 (show_scrollbar.along(axis)
11132 && (axis == ScrollbarAxis::Vertical || scroll_range > viewport_size))
11133 .then(|| {
11134 ScrollbarLayout::new(
11135 window.insert_hitbox(scrollbar_bounds_for(axis), HitboxBehavior::Normal),
11136 viewport_size,
11137 scroll_range,
11138 glyph_grid_cell.along(axis),
11139 content_offset.along(axis),
11140 scroll_position.along(axis),
11141 show_scrollbars,
11142 axis,
11143 )
11144 .with_thumb_state(
11145 scrollbar_state.and_then(|state| state.thumb_state_for_axis(axis)),
11146 )
11147 })
11148 };
11149
11150 Self {
11151 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
11152 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
11153 visible: show_scrollbars,
11154 }
11155 }
11156
11157 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
11158 [
11159 (&self.vertical, ScrollbarAxis::Vertical),
11160 (&self.horizontal, ScrollbarAxis::Horizontal),
11161 ]
11162 .into_iter()
11163 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
11164 }
11165
11166 /// Returns the currently hovered scrollbar axis, if any.
11167 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
11168 self.iter_scrollbars()
11169 .find(|s| s.0.hitbox.is_hovered(window))
11170 }
11171}
11172
11173#[derive(Clone)]
11174struct ScrollbarLayout {
11175 hitbox: Hitbox,
11176 visible_range: Range<ScrollOffset>,
11177 text_unit_size: Pixels,
11178 thumb_bounds: Option<Bounds<Pixels>>,
11179 thumb_state: ScrollbarThumbState,
11180}
11181
11182impl ScrollbarLayout {
11183 const BORDER_WIDTH: Pixels = px(1.0);
11184 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
11185 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
11186 const MIN_THUMB_SIZE: Pixels = px(25.0);
11187
11188 fn new(
11189 scrollbar_track_hitbox: Hitbox,
11190 viewport_size: Pixels,
11191 scroll_range: Pixels,
11192 glyph_space: Pixels,
11193 content_offset: Pixels,
11194 scroll_position: ScrollOffset,
11195 show_thumb: bool,
11196 axis: ScrollbarAxis,
11197 ) -> Self {
11198 let track_bounds = scrollbar_track_hitbox.bounds;
11199 // The length of the track available to the scrollbar thumb. We deliberately
11200 // exclude the content size here so that the thumb aligns with the content.
11201 let track_length = track_bounds.size.along(axis) - content_offset;
11202
11203 Self::new_with_hitbox_and_track_length(
11204 scrollbar_track_hitbox,
11205 track_length,
11206 viewport_size,
11207 scroll_range.into(),
11208 glyph_space,
11209 content_offset.into(),
11210 scroll_position,
11211 show_thumb,
11212 axis,
11213 )
11214 }
11215
11216 fn for_minimap(
11217 minimap_track_hitbox: Hitbox,
11218 visible_lines: f64,
11219 total_editor_lines: f64,
11220 minimap_line_height: Pixels,
11221 scroll_position: ScrollOffset,
11222 minimap_scroll_top: ScrollOffset,
11223 show_thumb: bool,
11224 ) -> Self {
11225 // The scrollbar thumb size is calculated as
11226 // (visible_content/total_content) Γ scrollbar_track_length.
11227 //
11228 // For the minimap's thumb layout, we leverage this by setting the
11229 // scrollbar track length to the entire document size (using minimap line
11230 // height). This creates a thumb that exactly represents the editor
11231 // viewport scaled to minimap proportions.
11232 //
11233 // We adjust the thumb position relative to `minimap_scroll_top` to
11234 // accommodate for the deliberately oversized track.
11235 //
11236 // This approach ensures that the minimap thumb accurately reflects the
11237 // editor's current scroll position whilst nicely synchronizing the minimap
11238 // thumb and scrollbar thumb.
11239 let scroll_range = total_editor_lines * f64::from(minimap_line_height);
11240 let viewport_size = visible_lines * f64::from(minimap_line_height);
11241
11242 let track_top_offset = -minimap_scroll_top * f64::from(minimap_line_height);
11243
11244 Self::new_with_hitbox_and_track_length(
11245 minimap_track_hitbox,
11246 Pixels::from(scroll_range),
11247 Pixels::from(viewport_size),
11248 scroll_range,
11249 minimap_line_height,
11250 track_top_offset,
11251 scroll_position,
11252 show_thumb,
11253 ScrollbarAxis::Vertical,
11254 )
11255 }
11256
11257 fn new_with_hitbox_and_track_length(
11258 scrollbar_track_hitbox: Hitbox,
11259 track_length: Pixels,
11260 viewport_size: Pixels,
11261 scroll_range: f64,
11262 glyph_space: Pixels,
11263 content_offset: ScrollOffset,
11264 scroll_position: ScrollOffset,
11265 show_thumb: bool,
11266 axis: ScrollbarAxis,
11267 ) -> Self {
11268 let text_units_per_page = viewport_size.to_f64() / glyph_space.to_f64();
11269 let visible_range = scroll_position..scroll_position + text_units_per_page;
11270 let total_text_units = scroll_range / glyph_space.to_f64();
11271
11272 let thumb_percentage = text_units_per_page / total_text_units;
11273 let thumb_size = Pixels::from(ScrollOffset::from(track_length) * thumb_percentage)
11274 .max(ScrollbarLayout::MIN_THUMB_SIZE)
11275 .min(track_length);
11276
11277 let text_unit_divisor = (total_text_units - text_units_per_page).max(0.);
11278
11279 let content_larger_than_viewport = text_unit_divisor > 0.;
11280
11281 let text_unit_size = if content_larger_than_viewport {
11282 Pixels::from(ScrollOffset::from(track_length - thumb_size) / text_unit_divisor)
11283 } else {
11284 glyph_space
11285 };
11286
11287 let thumb_bounds = (show_thumb && content_larger_than_viewport).then(|| {
11288 Self::thumb_bounds(
11289 &scrollbar_track_hitbox,
11290 content_offset,
11291 visible_range.start,
11292 text_unit_size,
11293 thumb_size,
11294 axis,
11295 )
11296 });
11297
11298 ScrollbarLayout {
11299 hitbox: scrollbar_track_hitbox,
11300 visible_range,
11301 text_unit_size,
11302 thumb_bounds,
11303 thumb_state: Default::default(),
11304 }
11305 }
11306
11307 fn with_thumb_state(self, thumb_state: Option<ScrollbarThumbState>) -> Self {
11308 if let Some(thumb_state) = thumb_state {
11309 Self {
11310 thumb_state,
11311 ..self
11312 }
11313 } else {
11314 self
11315 }
11316 }
11317
11318 fn thumb_bounds(
11319 scrollbar_track: &Hitbox,
11320 content_offset: f64,
11321 visible_range_start: f64,
11322 text_unit_size: Pixels,
11323 thumb_size: Pixels,
11324 axis: ScrollbarAxis,
11325 ) -> Bounds<Pixels> {
11326 let thumb_origin = scrollbar_track.origin.apply_along(axis, |origin| {
11327 origin
11328 + Pixels::from(
11329 content_offset + visible_range_start * ScrollOffset::from(text_unit_size),
11330 )
11331 });
11332 Bounds::new(
11333 thumb_origin,
11334 scrollbar_track.size.apply_along(axis, |_| thumb_size),
11335 )
11336 }
11337
11338 fn thumb_hovered(&self, position: &gpui::Point<Pixels>) -> bool {
11339 self.thumb_bounds
11340 .is_some_and(|bounds| bounds.contains(position))
11341 }
11342
11343 fn marker_quads_for_ranges(
11344 &self,
11345 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
11346 column: Option<usize>,
11347 ) -> Vec<PaintQuad> {
11348 struct MinMax {
11349 min: Pixels,
11350 max: Pixels,
11351 }
11352 let (x_range, height_limit) = if let Some(column) = column {
11353 let column_width = ((self.hitbox.size.width - Self::BORDER_WIDTH) / 3.0).floor();
11354 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
11355 let end = start + column_width;
11356 (
11357 Range { start, end },
11358 MinMax {
11359 min: Self::MIN_MARKER_HEIGHT,
11360 max: px(f32::MAX),
11361 },
11362 )
11363 } else {
11364 (
11365 Range {
11366 start: Self::BORDER_WIDTH,
11367 end: self.hitbox.size.width,
11368 },
11369 MinMax {
11370 min: Self::LINE_MARKER_HEIGHT,
11371 max: Self::LINE_MARKER_HEIGHT,
11372 },
11373 )
11374 };
11375
11376 let row_to_y = |row: DisplayRow| row.as_f64() as f32 * self.text_unit_size;
11377 let mut pixel_ranges = row_ranges
11378 .into_iter()
11379 .map(|range| {
11380 let start_y = row_to_y(range.start);
11381 let end_y = row_to_y(range.end)
11382 + self
11383 .text_unit_size
11384 .max(height_limit.min)
11385 .min(height_limit.max);
11386 ColoredRange {
11387 start: start_y,
11388 end: end_y,
11389 color: range.color,
11390 }
11391 })
11392 .peekable();
11393
11394 let mut quads = Vec::new();
11395 while let Some(mut pixel_range) = pixel_ranges.next() {
11396 while let Some(next_pixel_range) = pixel_ranges.peek() {
11397 if pixel_range.end >= next_pixel_range.start - px(1.0)
11398 && pixel_range.color == next_pixel_range.color
11399 {
11400 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
11401 pixel_ranges.next();
11402 } else {
11403 break;
11404 }
11405 }
11406
11407 let bounds = Bounds::from_corners(
11408 point(x_range.start, pixel_range.start),
11409 point(x_range.end, pixel_range.end),
11410 );
11411 quads.push(quad(
11412 bounds,
11413 Corners::default(),
11414 pixel_range.color,
11415 Edges::default(),
11416 Hsla::transparent_black(),
11417 BorderStyle::default(),
11418 ));
11419 }
11420
11421 quads
11422 }
11423}
11424
11425struct MinimapLayout {
11426 pub minimap: AnyElement,
11427 pub thumb_layout: ScrollbarLayout,
11428 pub minimap_scroll_top: ScrollOffset,
11429 pub minimap_line_height: Pixels,
11430 pub thumb_border_style: MinimapThumbBorder,
11431 pub max_scroll_top: ScrollOffset,
11432}
11433
11434impl MinimapLayout {
11435 /// The minimum width of the minimap in columns. If the minimap is smaller than this, it will be hidden.
11436 const MINIMAP_MIN_WIDTH_COLUMNS: f32 = 20.;
11437 /// The minimap width as a percentage of the editor width.
11438 const MINIMAP_WIDTH_PCT: f32 = 0.15;
11439 /// Calculates the scroll top offset the minimap editor has to have based on the
11440 /// current scroll progress.
11441 fn calculate_minimap_top_offset(
11442 document_lines: f64,
11443 visible_editor_lines: f64,
11444 visible_minimap_lines: f64,
11445 scroll_position: f64,
11446 ) -> ScrollOffset {
11447 let non_visible_document_lines = (document_lines - visible_editor_lines).max(0.);
11448 if non_visible_document_lines == 0. {
11449 0.
11450 } else {
11451 let scroll_percentage = (scroll_position / non_visible_document_lines).clamp(0., 1.);
11452 scroll_percentage * (document_lines - visible_minimap_lines).max(0.)
11453 }
11454 }
11455}
11456
11457struct CreaseTrailerLayout {
11458 element: AnyElement,
11459 bounds: Bounds<Pixels>,
11460}
11461
11462pub(crate) struct PositionMap {
11463 pub size: Size<Pixels>,
11464 pub line_height: Pixels,
11465 pub scroll_position: gpui::Point<ScrollOffset>,
11466 pub scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
11467 pub scroll_max: gpui::Point<ScrollOffset>,
11468 pub em_width: Pixels,
11469 pub em_advance: Pixels,
11470 pub visible_row_range: Range<DisplayRow>,
11471 pub line_layouts: Vec<LineWithInvisibles>,
11472 pub snapshot: EditorSnapshot,
11473 pub text_align: TextAlign,
11474 pub content_width: Pixels,
11475 pub text_hitbox: Hitbox,
11476 pub gutter_hitbox: Hitbox,
11477 pub inline_blame_bounds: Option<(Bounds<Pixels>, BufferId, BlameEntry)>,
11478 pub display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
11479 pub diff_hunk_control_bounds: Vec<(DisplayRow, Bounds<Pixels>)>,
11480}
11481
11482#[derive(Debug, Copy, Clone)]
11483pub struct PointForPosition {
11484 pub previous_valid: DisplayPoint,
11485 pub next_valid: DisplayPoint,
11486 pub exact_unclipped: DisplayPoint,
11487 pub column_overshoot_after_line_end: u32,
11488}
11489
11490impl PointForPosition {
11491 pub fn as_valid(&self) -> Option<DisplayPoint> {
11492 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
11493 Some(self.previous_valid)
11494 } else {
11495 None
11496 }
11497 }
11498
11499 pub fn intersects_selection(&self, selection: &Selection<DisplayPoint>) -> bool {
11500 let Some(valid_point) = self.as_valid() else {
11501 return false;
11502 };
11503 let range = selection.range();
11504
11505 let candidate_row = valid_point.row();
11506 let candidate_col = valid_point.column();
11507
11508 let start_row = range.start.row();
11509 let start_col = range.start.column();
11510 let end_row = range.end.row();
11511 let end_col = range.end.column();
11512
11513 if candidate_row < start_row || candidate_row > end_row {
11514 false
11515 } else if start_row == end_row {
11516 candidate_col >= start_col && candidate_col < end_col
11517 } else if candidate_row == start_row {
11518 candidate_col >= start_col
11519 } else if candidate_row == end_row {
11520 candidate_col < end_col
11521 } else {
11522 true
11523 }
11524 }
11525}
11526
11527impl PositionMap {
11528 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
11529 let text_bounds = self.text_hitbox.bounds;
11530 let scroll_position = self.snapshot.scroll_position();
11531 let position = position - text_bounds.origin;
11532 let y = position.y.max(px(0.)).min(self.size.height);
11533 let x = position.x + (scroll_position.x as f32 * self.em_advance);
11534 let row = ((y / self.line_height) as f64 + scroll_position.y) as u32;
11535
11536 let (column, x_overshoot_after_line_end) = if let Some(line) = self
11537 .line_layouts
11538 .get(row as usize - scroll_position.y as usize)
11539 {
11540 let alignment_offset = line.alignment_offset(self.text_align, self.content_width);
11541 let x_relative_to_text = x - alignment_offset;
11542 if let Some(ix) = line.index_for_x(x_relative_to_text) {
11543 (ix as u32, px(0.))
11544 } else {
11545 (line.len as u32, px(0.).max(x_relative_to_text - line.width))
11546 }
11547 } else {
11548 (0, x)
11549 };
11550
11551 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
11552 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
11553 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
11554
11555 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
11556 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
11557 PointForPosition {
11558 previous_valid,
11559 next_valid,
11560 exact_unclipped,
11561 column_overshoot_after_line_end,
11562 }
11563 }
11564}
11565
11566struct BlockLayout {
11567 id: BlockId,
11568 x_offset: Pixels,
11569 row: Option<DisplayRow>,
11570 element: AnyElement,
11571 available_space: Size<AvailableSpace>,
11572 style: BlockStyle,
11573 overlaps_gutter: bool,
11574 is_buffer_header: bool,
11575}
11576
11577pub fn layout_line(
11578 row: DisplayRow,
11579 snapshot: &EditorSnapshot,
11580 style: &EditorStyle,
11581 text_width: Pixels,
11582 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
11583 window: &mut Window,
11584 cx: &mut App,
11585) -> LineWithInvisibles {
11586 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
11587 LineWithInvisibles::from_chunks(
11588 chunks,
11589 style,
11590 MAX_LINE_LEN,
11591 1,
11592 &snapshot.mode,
11593 text_width,
11594 is_row_soft_wrapped,
11595 &[],
11596 window,
11597 cx,
11598 )
11599 .pop()
11600 .unwrap()
11601}
11602
11603#[derive(Debug)]
11604pub struct IndentGuideLayout {
11605 origin: gpui::Point<Pixels>,
11606 length: Pixels,
11607 single_indent_width: Pixels,
11608 depth: u32,
11609 active: bool,
11610 settings: IndentGuideSettings,
11611}
11612
11613pub struct CursorLayout {
11614 origin: gpui::Point<Pixels>,
11615 block_width: Pixels,
11616 line_height: Pixels,
11617 color: Hsla,
11618 shape: CursorShape,
11619 block_text: Option<ShapedLine>,
11620 cursor_name: Option<AnyElement>,
11621}
11622
11623#[derive(Debug)]
11624pub struct CursorName {
11625 string: SharedString,
11626 color: Hsla,
11627 is_top_row: bool,
11628}
11629
11630impl CursorLayout {
11631 pub fn new(
11632 origin: gpui::Point<Pixels>,
11633 block_width: Pixels,
11634 line_height: Pixels,
11635 color: Hsla,
11636 shape: CursorShape,
11637 block_text: Option<ShapedLine>,
11638 ) -> CursorLayout {
11639 CursorLayout {
11640 origin,
11641 block_width,
11642 line_height,
11643 color,
11644 shape,
11645 block_text,
11646 cursor_name: None,
11647 }
11648 }
11649
11650 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
11651 Bounds {
11652 origin: self.origin + origin,
11653 size: size(self.block_width, self.line_height),
11654 }
11655 }
11656
11657 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
11658 match self.shape {
11659 CursorShape::Bar => Bounds {
11660 origin: self.origin + origin,
11661 size: size(px(2.0), self.line_height),
11662 },
11663 CursorShape::Block | CursorShape::Hollow => Bounds {
11664 origin: self.origin + origin,
11665 size: size(self.block_width, self.line_height),
11666 },
11667 CursorShape::Underline => Bounds {
11668 origin: self.origin
11669 + origin
11670 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
11671 size: size(self.block_width, px(2.0)),
11672 },
11673 }
11674 }
11675
11676 pub fn layout(
11677 &mut self,
11678 origin: gpui::Point<Pixels>,
11679 cursor_name: Option<CursorName>,
11680 window: &mut Window,
11681 cx: &mut App,
11682 ) {
11683 if let Some(cursor_name) = cursor_name {
11684 let bounds = self.bounds(origin);
11685 let text_size = self.line_height / 1.5;
11686
11687 let name_origin = if cursor_name.is_top_row {
11688 point(bounds.right() - px(1.), bounds.top())
11689 } else {
11690 match self.shape {
11691 CursorShape::Bar => point(
11692 bounds.right() - px(2.),
11693 bounds.top() - text_size / 2. - px(1.),
11694 ),
11695 _ => point(
11696 bounds.right() - px(1.),
11697 bounds.top() - text_size / 2. - px(1.),
11698 ),
11699 }
11700 };
11701 let mut name_element = div()
11702 .bg(self.color)
11703 .text_size(text_size)
11704 .px_0p5()
11705 .line_height(text_size + px(2.))
11706 .text_color(cursor_name.color)
11707 .child(cursor_name.string)
11708 .into_any_element();
11709
11710 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
11711
11712 self.cursor_name = Some(name_element);
11713 }
11714 }
11715
11716 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
11717 let bounds = self.bounds(origin);
11718
11719 //Draw background or border quad
11720 let cursor = if matches!(self.shape, CursorShape::Hollow) {
11721 outline(bounds, self.color, BorderStyle::Solid)
11722 } else {
11723 fill(bounds, self.color)
11724 };
11725
11726 if let Some(name) = &mut self.cursor_name {
11727 name.paint(window, cx);
11728 }
11729
11730 window.paint_quad(cursor);
11731
11732 if let Some(block_text) = &self.block_text {
11733 block_text
11734 .paint(
11735 self.origin + origin,
11736 self.line_height,
11737 TextAlign::Left,
11738 None,
11739 window,
11740 cx,
11741 )
11742 .log_err();
11743 }
11744 }
11745
11746 pub fn shape(&self) -> CursorShape {
11747 self.shape
11748 }
11749}
11750
11751#[derive(Debug)]
11752pub struct HighlightedRange {
11753 pub start_y: Pixels,
11754 pub line_height: Pixels,
11755 pub lines: Vec<HighlightedRangeLine>,
11756 pub color: Hsla,
11757 pub corner_radius: Pixels,
11758}
11759
11760#[derive(Debug)]
11761pub struct HighlightedRangeLine {
11762 pub start_x: Pixels,
11763 pub end_x: Pixels,
11764}
11765
11766impl HighlightedRange {
11767 pub fn paint(&self, fill: bool, bounds: Bounds<Pixels>, window: &mut Window) {
11768 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
11769 self.paint_lines(self.start_y, &self.lines[0..1], fill, bounds, window);
11770 self.paint_lines(
11771 self.start_y + self.line_height,
11772 &self.lines[1..],
11773 fill,
11774 bounds,
11775 window,
11776 );
11777 } else {
11778 self.paint_lines(self.start_y, &self.lines, fill, bounds, window);
11779 }
11780 }
11781
11782 fn paint_lines(
11783 &self,
11784 start_y: Pixels,
11785 lines: &[HighlightedRangeLine],
11786 fill: bool,
11787 _bounds: Bounds<Pixels>,
11788 window: &mut Window,
11789 ) {
11790 if lines.is_empty() {
11791 return;
11792 }
11793
11794 let first_line = lines.first().unwrap();
11795 let last_line = lines.last().unwrap();
11796
11797 let first_top_left = point(first_line.start_x, start_y);
11798 let first_top_right = point(first_line.end_x, start_y);
11799
11800 let curve_height = point(Pixels::ZERO, self.corner_radius);
11801 let curve_width = |start_x: Pixels, end_x: Pixels| {
11802 let max = (end_x - start_x) / 2.;
11803 let width = if max < self.corner_radius {
11804 max
11805 } else {
11806 self.corner_radius
11807 };
11808
11809 point(width, Pixels::ZERO)
11810 };
11811
11812 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
11813 let mut builder = if fill {
11814 gpui::PathBuilder::fill()
11815 } else {
11816 gpui::PathBuilder::stroke(px(1.))
11817 };
11818 builder.move_to(first_top_right - top_curve_width);
11819 builder.curve_to(first_top_right + curve_height, first_top_right);
11820
11821 let mut iter = lines.iter().enumerate().peekable();
11822 while let Some((ix, line)) = iter.next() {
11823 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
11824
11825 if let Some((_, next_line)) = iter.peek() {
11826 let next_top_right = point(next_line.end_x, bottom_right.y);
11827
11828 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
11829 Ordering::Equal => {
11830 builder.line_to(bottom_right);
11831 }
11832 Ordering::Less => {
11833 let curve_width = curve_width(next_top_right.x, bottom_right.x);
11834 builder.line_to(bottom_right - curve_height);
11835 if self.corner_radius > Pixels::ZERO {
11836 builder.curve_to(bottom_right - curve_width, bottom_right);
11837 }
11838 builder.line_to(next_top_right + curve_width);
11839 if self.corner_radius > Pixels::ZERO {
11840 builder.curve_to(next_top_right + curve_height, next_top_right);
11841 }
11842 }
11843 Ordering::Greater => {
11844 let curve_width = curve_width(bottom_right.x, next_top_right.x);
11845 builder.line_to(bottom_right - curve_height);
11846 if self.corner_radius > Pixels::ZERO {
11847 builder.curve_to(bottom_right + curve_width, bottom_right);
11848 }
11849 builder.line_to(next_top_right - curve_width);
11850 if self.corner_radius > Pixels::ZERO {
11851 builder.curve_to(next_top_right + curve_height, next_top_right);
11852 }
11853 }
11854 }
11855 } else {
11856 let curve_width = curve_width(line.start_x, line.end_x);
11857 builder.line_to(bottom_right - curve_height);
11858 if self.corner_radius > Pixels::ZERO {
11859 builder.curve_to(bottom_right - curve_width, bottom_right);
11860 }
11861
11862 let bottom_left = point(line.start_x, bottom_right.y);
11863 builder.line_to(bottom_left + curve_width);
11864 if self.corner_radius > Pixels::ZERO {
11865 builder.curve_to(bottom_left - curve_height, bottom_left);
11866 }
11867 }
11868 }
11869
11870 if first_line.start_x > last_line.start_x {
11871 let curve_width = curve_width(last_line.start_x, first_line.start_x);
11872 let second_top_left = point(last_line.start_x, start_y + self.line_height);
11873 builder.line_to(second_top_left + curve_height);
11874 if self.corner_radius > Pixels::ZERO {
11875 builder.curve_to(second_top_left + curve_width, second_top_left);
11876 }
11877 let first_bottom_left = point(first_line.start_x, second_top_left.y);
11878 builder.line_to(first_bottom_left - curve_width);
11879 if self.corner_radius > Pixels::ZERO {
11880 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
11881 }
11882 }
11883
11884 builder.line_to(first_top_left + curve_height);
11885 if self.corner_radius > Pixels::ZERO {
11886 builder.curve_to(first_top_left + top_curve_width, first_top_left);
11887 }
11888 builder.line_to(first_top_right - top_curve_width);
11889
11890 if let Ok(path) = builder.build() {
11891 window.paint_path(path, self.color);
11892 }
11893 }
11894}
11895
11896pub(crate) struct StickyHeader {
11897 pub item: language::OutlineItem<Anchor>,
11898 pub sticky_row: DisplayRow,
11899 pub start_point: Point,
11900 pub offset: ScrollOffset,
11901}
11902
11903enum CursorPopoverType {
11904 CodeContextMenu,
11905 EditPrediction,
11906}
11907
11908pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
11909 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
11910}
11911
11912fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
11913 (delta.pow(1.2) / 300.0).into()
11914}
11915
11916pub fn register_action<T: Action>(
11917 editor: &Entity<Editor>,
11918 window: &mut Window,
11919 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
11920) {
11921 let editor = editor.clone();
11922 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
11923 let action = action.downcast_ref().unwrap();
11924 if phase == DispatchPhase::Bubble {
11925 editor.update(cx, |editor, cx| {
11926 listener(editor, action, window, cx);
11927 })
11928 }
11929 })
11930}
11931
11932fn compute_auto_height_layout(
11933 editor: &mut Editor,
11934 min_lines: usize,
11935 max_lines: Option<usize>,
11936 known_dimensions: Size<Option<Pixels>>,
11937 available_width: AvailableSpace,
11938 window: &mut Window,
11939 cx: &mut Context<Editor>,
11940) -> Option<Size<Pixels>> {
11941 let width = known_dimensions.width.or({
11942 if let AvailableSpace::Definite(available_width) = available_width {
11943 Some(available_width)
11944 } else {
11945 None
11946 }
11947 })?;
11948 if let Some(height) = known_dimensions.height {
11949 return Some(size(width, height));
11950 }
11951
11952 let style = editor.style.as_ref().unwrap();
11953 let font_id = window.text_system().resolve_font(&style.text.font());
11954 let font_size = style.text.font_size.to_pixels(window.rem_size());
11955 let line_height = style.text.line_height_in_pixels(window.rem_size());
11956 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
11957
11958 let mut snapshot = editor.snapshot(window, cx);
11959 let gutter_dimensions = snapshot.gutter_dimensions(font_id, font_size, style, window, cx);
11960
11961 editor.gutter_dimensions = gutter_dimensions;
11962 let text_width = width - gutter_dimensions.width;
11963 let overscroll = size(em_width, px(0.));
11964
11965 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
11966 if !matches!(editor.soft_wrap_mode(cx), SoftWrap::None)
11967 && editor.set_wrap_width(Some(editor_width), cx)
11968 {
11969 snapshot = editor.snapshot(window, cx);
11970 }
11971
11972 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
11973
11974 let min_height = line_height * min_lines as f32;
11975 let content_height = scroll_height.max(min_height);
11976
11977 let final_height = if let Some(max_lines) = max_lines {
11978 let max_height = line_height * max_lines as f32;
11979 content_height.min(max_height)
11980 } else {
11981 content_height
11982 };
11983
11984 Some(size(width, final_height))
11985}
11986
11987#[cfg(test)]
11988mod tests {
11989 use super::*;
11990 use crate::{
11991 Editor, MultiBuffer, SelectionEffects,
11992 display_map::{BlockPlacement, BlockProperties},
11993 editor_tests::{init_test, update_test_language_settings},
11994 };
11995 use gpui::{TestAppContext, VisualTestContext};
11996 use language::{Buffer, language_settings, tree_sitter_python};
11997 use log::info;
11998 use std::num::NonZeroU32;
11999 use util::test::sample_text;
12000
12001 #[gpui::test]
12002 async fn test_soft_wrap_editor_width_auto_height_editor(cx: &mut TestAppContext) {
12003 init_test(cx, |_| {});
12004 // Ensure wrap completes synchronously by giving block_with_timeout enough ticks
12005 cx.dispatcher.scheduler().set_timeout_ticks(1000..=1000);
12006
12007 let window = cx.add_window(|window, cx| {
12008 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
12009 let mut editor = Editor::new(
12010 EditorMode::AutoHeight {
12011 min_lines: 1,
12012 max_lines: None,
12013 },
12014 buffer,
12015 None,
12016 window,
12017 cx,
12018 );
12019 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12020 editor
12021 });
12022 let cx = &mut VisualTestContext::from_window(*window, cx);
12023 let editor = window.root(cx).unwrap();
12024 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12025
12026 for x in 1..=100 {
12027 let (_, state) = cx.draw(
12028 Default::default(),
12029 size(px(200. + 0.13 * x as f32), px(500.)),
12030 |_, _| EditorElement::new(&editor, style.clone()),
12031 );
12032
12033 assert!(
12034 state.position_map.scroll_max.x == 0.,
12035 "Soft wrapped editor should have no horizontal scrolling!"
12036 );
12037 }
12038 }
12039
12040 #[gpui::test]
12041 async fn test_soft_wrap_editor_width_full_editor(cx: &mut TestAppContext) {
12042 init_test(cx, |_| {});
12043 // Ensure wrap completes synchronously by giving block_with_timeout enough ticks
12044 cx.dispatcher.scheduler().set_timeout_ticks(1000..=1000);
12045
12046 let window = cx.add_window(|window, cx| {
12047 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
12048 let mut editor = Editor::new(EditorMode::full(), buffer, None, window, cx);
12049 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12050 editor
12051 });
12052 let cx = &mut VisualTestContext::from_window(*window, cx);
12053 let editor = window.root(cx).unwrap();
12054 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12055
12056 for x in 1..=100 {
12057 let (_, state) = cx.draw(
12058 Default::default(),
12059 size(px(200. + 0.13 * x as f32), px(500.)),
12060 |_, _| EditorElement::new(&editor, style.clone()),
12061 );
12062
12063 assert!(
12064 state.position_map.scroll_max.x == 0.,
12065 "Soft wrapped editor should have no horizontal scrolling!"
12066 );
12067 }
12068 }
12069
12070 #[gpui::test]
12071 fn test_layout_line_numbers(cx: &mut TestAppContext) {
12072 init_test(cx, |_| {});
12073 let window = cx.add_window(|window, cx| {
12074 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
12075 Editor::new(EditorMode::full(), buffer, None, window, cx)
12076 });
12077
12078 let editor = window.root(cx).unwrap();
12079 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12080 let line_height = window
12081 .update(cx, |_, window, _| {
12082 style.text.line_height_in_pixels(window.rem_size())
12083 })
12084 .unwrap();
12085 let element = EditorElement::new(&editor, style);
12086 let snapshot = window
12087 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
12088 .unwrap();
12089
12090 let layouts = cx
12091 .update_window(*window, |_, window, cx| {
12092 element.layout_line_numbers(
12093 None,
12094 GutterDimensions {
12095 left_padding: Pixels::ZERO,
12096 right_padding: Pixels::ZERO,
12097 width: px(30.0),
12098 margin: Pixels::ZERO,
12099 git_blame_entries_width: None,
12100 },
12101 line_height,
12102 gpui::Point::default(),
12103 DisplayRow(0)..DisplayRow(6),
12104 &(0..6)
12105 .map(|row| RowInfo {
12106 buffer_row: Some(row),
12107 ..Default::default()
12108 })
12109 .collect::<Vec<_>>(),
12110 &BTreeMap::default(),
12111 Some(DisplayRow(0)),
12112 &snapshot,
12113 window,
12114 cx,
12115 )
12116 })
12117 .unwrap();
12118 assert_eq!(layouts.len(), 6);
12119
12120 let relative_rows = window
12121 .update(cx, |editor, window, cx| {
12122 let snapshot = editor.snapshot(window, cx);
12123 snapshot.calculate_relative_line_numbers(
12124 &(DisplayRow(0)..DisplayRow(6)),
12125 DisplayRow(3),
12126 false,
12127 )
12128 })
12129 .unwrap();
12130 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12131 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12132 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12133 // current line has no relative number
12134 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12135 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12136 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12137
12138 // works if cursor is before screen
12139 let relative_rows = window
12140 .update(cx, |editor, window, cx| {
12141 let snapshot = editor.snapshot(window, cx);
12142 snapshot.calculate_relative_line_numbers(
12143 &(DisplayRow(3)..DisplayRow(6)),
12144 DisplayRow(1),
12145 false,
12146 )
12147 })
12148 .unwrap();
12149 assert_eq!(relative_rows.len(), 3);
12150 assert_eq!(relative_rows[&DisplayRow(3)], 2);
12151 assert_eq!(relative_rows[&DisplayRow(4)], 3);
12152 assert_eq!(relative_rows[&DisplayRow(5)], 4);
12153
12154 // works if cursor is after screen
12155 let relative_rows = window
12156 .update(cx, |editor, window, cx| {
12157 let snapshot = editor.snapshot(window, cx);
12158 snapshot.calculate_relative_line_numbers(
12159 &(DisplayRow(0)..DisplayRow(3)),
12160 DisplayRow(6),
12161 false,
12162 )
12163 })
12164 .unwrap();
12165 assert_eq!(relative_rows.len(), 3);
12166 assert_eq!(relative_rows[&DisplayRow(0)], 5);
12167 assert_eq!(relative_rows[&DisplayRow(1)], 4);
12168 assert_eq!(relative_rows[&DisplayRow(2)], 3);
12169
12170 const DELETED_LINE: u32 = 3;
12171 let layouts = cx
12172 .update_window(*window, |_, window, cx| {
12173 element.layout_line_numbers(
12174 None,
12175 GutterDimensions {
12176 left_padding: Pixels::ZERO,
12177 right_padding: Pixels::ZERO,
12178 width: px(30.0),
12179 margin: Pixels::ZERO,
12180 git_blame_entries_width: None,
12181 },
12182 line_height,
12183 gpui::Point::default(),
12184 DisplayRow(0)..DisplayRow(6),
12185 &(0..6)
12186 .map(|row| RowInfo {
12187 buffer_row: Some(row),
12188 diff_status: (row == DELETED_LINE).then(|| {
12189 DiffHunkStatus::deleted(
12190 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
12191 )
12192 }),
12193 ..Default::default()
12194 })
12195 .collect::<Vec<_>>(),
12196 &BTreeMap::default(),
12197 Some(DisplayRow(0)),
12198 &snapshot,
12199 window,
12200 cx,
12201 )
12202 })
12203 .unwrap();
12204 assert_eq!(layouts.len(), 5,);
12205 assert!(
12206 layouts.get(&MultiBufferRow(DELETED_LINE)).is_none(),
12207 "Deleted line should not have a line number"
12208 );
12209 }
12210
12211 #[gpui::test]
12212 async fn test_layout_line_numbers_with_folded_lines(cx: &mut TestAppContext) {
12213 init_test(cx, |_| {});
12214
12215 let python_lang = languages::language("python", tree_sitter_python::LANGUAGE.into());
12216
12217 let window = cx.add_window(|window, cx| {
12218 let buffer = cx.new(|cx| {
12219 Buffer::local(
12220 indoc::indoc! {"
12221 fn test() -> int {
12222 return 2;
12223 }
12224
12225 fn another_test() -> int {
12226 # This is a very peculiar method that is hard to grasp.
12227 return 4;
12228 }
12229 "},
12230 cx,
12231 )
12232 .with_language(python_lang, cx)
12233 });
12234
12235 let buffer = MultiBuffer::build_from_buffer(buffer, cx);
12236 Editor::new(EditorMode::full(), buffer, None, window, cx)
12237 });
12238
12239 let editor = window.root(cx).unwrap();
12240 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12241 let line_height = window
12242 .update(cx, |_, window, _| {
12243 style.text.line_height_in_pixels(window.rem_size())
12244 })
12245 .unwrap();
12246 let element = EditorElement::new(&editor, style);
12247 let snapshot = window
12248 .update(cx, |editor, window, cx| {
12249 editor.fold_at(MultiBufferRow(0), window, cx);
12250 editor.snapshot(window, cx)
12251 })
12252 .unwrap();
12253
12254 let layouts = cx
12255 .update_window(*window, |_, window, cx| {
12256 element.layout_line_numbers(
12257 None,
12258 GutterDimensions {
12259 left_padding: Pixels::ZERO,
12260 right_padding: Pixels::ZERO,
12261 width: px(30.0),
12262 margin: Pixels::ZERO,
12263 git_blame_entries_width: None,
12264 },
12265 line_height,
12266 gpui::Point::default(),
12267 DisplayRow(0)..DisplayRow(6),
12268 &(0..6)
12269 .map(|row| RowInfo {
12270 buffer_row: Some(row),
12271 ..Default::default()
12272 })
12273 .collect::<Vec<_>>(),
12274 &BTreeMap::default(),
12275 Some(DisplayRow(3)),
12276 &snapshot,
12277 window,
12278 cx,
12279 )
12280 })
12281 .unwrap();
12282 assert_eq!(layouts.len(), 6);
12283
12284 let relative_rows = window
12285 .update(cx, |editor, window, cx| {
12286 let snapshot = editor.snapshot(window, cx);
12287 snapshot.calculate_relative_line_numbers(
12288 &(DisplayRow(0)..DisplayRow(6)),
12289 DisplayRow(3),
12290 false,
12291 )
12292 })
12293 .unwrap();
12294 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12295 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12296 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12297 // current line has no relative number
12298 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12299 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12300 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12301 }
12302
12303 #[gpui::test]
12304 fn test_layout_line_numbers_wrapping(cx: &mut TestAppContext) {
12305 init_test(cx, |_| {});
12306 let window = cx.add_window(|window, cx| {
12307 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
12308 Editor::new(EditorMode::full(), buffer, None, window, cx)
12309 });
12310
12311 update_test_language_settings(cx, |s| {
12312 s.defaults.preferred_line_length = Some(5_u32);
12313 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
12314 });
12315
12316 let editor = window.root(cx).unwrap();
12317 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12318 let line_height = window
12319 .update(cx, |_, window, _| {
12320 style.text.line_height_in_pixels(window.rem_size())
12321 })
12322 .unwrap();
12323 let element = EditorElement::new(&editor, style);
12324 let snapshot = window
12325 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
12326 .unwrap();
12327
12328 let layouts = cx
12329 .update_window(*window, |_, window, cx| {
12330 element.layout_line_numbers(
12331 None,
12332 GutterDimensions {
12333 left_padding: Pixels::ZERO,
12334 right_padding: Pixels::ZERO,
12335 width: px(30.0),
12336 margin: Pixels::ZERO,
12337 git_blame_entries_width: None,
12338 },
12339 line_height,
12340 gpui::Point::default(),
12341 DisplayRow(0)..DisplayRow(6),
12342 &(0..6)
12343 .map(|row| RowInfo {
12344 buffer_row: Some(row),
12345 ..Default::default()
12346 })
12347 .collect::<Vec<_>>(),
12348 &BTreeMap::default(),
12349 Some(DisplayRow(0)),
12350 &snapshot,
12351 window,
12352 cx,
12353 )
12354 })
12355 .unwrap();
12356 assert_eq!(layouts.len(), 3);
12357
12358 let relative_rows = window
12359 .update(cx, |editor, window, cx| {
12360 let snapshot = editor.snapshot(window, cx);
12361 snapshot.calculate_relative_line_numbers(
12362 &(DisplayRow(0)..DisplayRow(6)),
12363 DisplayRow(3),
12364 true,
12365 )
12366 })
12367 .unwrap();
12368
12369 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12370 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12371 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12372 // current line has no relative number
12373 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12374 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12375 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12376
12377 let layouts = cx
12378 .update_window(*window, |_, window, cx| {
12379 element.layout_line_numbers(
12380 None,
12381 GutterDimensions {
12382 left_padding: Pixels::ZERO,
12383 right_padding: Pixels::ZERO,
12384 width: px(30.0),
12385 margin: Pixels::ZERO,
12386 git_blame_entries_width: None,
12387 },
12388 line_height,
12389 gpui::Point::default(),
12390 DisplayRow(0)..DisplayRow(6),
12391 &(0..6)
12392 .map(|row| RowInfo {
12393 buffer_row: Some(row),
12394 diff_status: Some(DiffHunkStatus::deleted(
12395 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
12396 )),
12397 ..Default::default()
12398 })
12399 .collect::<Vec<_>>(),
12400 &BTreeMap::from_iter([(DisplayRow(0), LineHighlightSpec::default())]),
12401 Some(DisplayRow(0)),
12402 &snapshot,
12403 window,
12404 cx,
12405 )
12406 })
12407 .unwrap();
12408 assert!(
12409 layouts.is_empty(),
12410 "Deleted lines should have no line number"
12411 );
12412
12413 let relative_rows = window
12414 .update(cx, |editor, window, cx| {
12415 let snapshot = editor.snapshot(window, cx);
12416 snapshot.calculate_relative_line_numbers(
12417 &(DisplayRow(0)..DisplayRow(6)),
12418 DisplayRow(3),
12419 true,
12420 )
12421 })
12422 .unwrap();
12423
12424 // Deleted lines should still have relative numbers
12425 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12426 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12427 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12428 // current line, even if deleted, has no relative number
12429 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12430 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12431 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12432 }
12433
12434 #[gpui::test]
12435 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
12436 init_test(cx, |_| {});
12437
12438 let window = cx.add_window(|window, cx| {
12439 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
12440 Editor::new(EditorMode::full(), buffer, None, window, cx)
12441 });
12442 let cx = &mut VisualTestContext::from_window(*window, cx);
12443 let editor = window.root(cx).unwrap();
12444 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12445
12446 window
12447 .update(cx, |editor, window, cx| {
12448 editor.cursor_offset_on_selection = true;
12449 editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
12450 s.select_ranges([
12451 Point::new(0, 0)..Point::new(1, 0),
12452 Point::new(3, 2)..Point::new(3, 3),
12453 Point::new(5, 6)..Point::new(6, 0),
12454 ]);
12455 });
12456 })
12457 .unwrap();
12458
12459 let (_, state) = cx.draw(
12460 point(px(500.), px(500.)),
12461 size(px(500.), px(500.)),
12462 |_, _| EditorElement::new(&editor, style),
12463 );
12464
12465 assert_eq!(state.selections.len(), 1);
12466 let local_selections = &state.selections[0].1;
12467 assert_eq!(local_selections.len(), 3);
12468 // moves cursor back one line
12469 assert_eq!(
12470 local_selections[0].head,
12471 DisplayPoint::new(DisplayRow(0), 6)
12472 );
12473 assert_eq!(
12474 local_selections[0].range,
12475 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
12476 );
12477
12478 // moves cursor back one column
12479 assert_eq!(
12480 local_selections[1].range,
12481 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
12482 );
12483 assert_eq!(
12484 local_selections[1].head,
12485 DisplayPoint::new(DisplayRow(3), 2)
12486 );
12487
12488 // leaves cursor on the max point
12489 assert_eq!(
12490 local_selections[2].range,
12491 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
12492 );
12493 assert_eq!(
12494 local_selections[2].head,
12495 DisplayPoint::new(DisplayRow(6), 0)
12496 );
12497
12498 // active lines does not include 1 (even though the range of the selection does)
12499 assert_eq!(
12500 state.active_rows.keys().cloned().collect::<Vec<_>>(),
12501 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
12502 );
12503 }
12504
12505 #[gpui::test]
12506 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
12507 init_test(cx, |_| {});
12508
12509 let window = cx.add_window(|window, cx| {
12510 let buffer = MultiBuffer::build_simple("", cx);
12511 Editor::new(EditorMode::full(), buffer, None, window, cx)
12512 });
12513 let cx = &mut VisualTestContext::from_window(*window, cx);
12514 let editor = window.root(cx).unwrap();
12515 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12516 window
12517 .update(cx, |editor, window, cx| {
12518 editor.set_placeholder_text("hello", window, cx);
12519 editor.insert_blocks(
12520 [BlockProperties {
12521 style: BlockStyle::Fixed,
12522 placement: BlockPlacement::Above(Anchor::min()),
12523 height: Some(3),
12524 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
12525 priority: 0,
12526 }],
12527 None,
12528 cx,
12529 );
12530
12531 // Blur the editor so that it displays placeholder text.
12532 window.blur();
12533 })
12534 .unwrap();
12535
12536 let (_, state) = cx.draw(
12537 point(px(500.), px(500.)),
12538 size(px(500.), px(500.)),
12539 |_, _| EditorElement::new(&editor, style),
12540 );
12541 assert_eq!(state.position_map.line_layouts.len(), 4);
12542 assert_eq!(state.line_numbers.len(), 1);
12543 assert_eq!(
12544 state
12545 .line_numbers
12546 .get(&MultiBufferRow(0))
12547 .map(|line_number| line_number
12548 .segments
12549 .first()
12550 .unwrap()
12551 .shaped_line
12552 .text
12553 .as_ref()),
12554 Some("1")
12555 );
12556 }
12557
12558 #[gpui::test]
12559 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
12560 const TAB_SIZE: u32 = 4;
12561
12562 let input_text = "\t \t|\t| a b";
12563 let expected_invisibles = vec![
12564 Invisible::Tab {
12565 line_start_offset: 0,
12566 line_end_offset: TAB_SIZE as usize,
12567 },
12568 Invisible::Whitespace {
12569 line_offset: TAB_SIZE as usize,
12570 },
12571 Invisible::Tab {
12572 line_start_offset: TAB_SIZE as usize + 1,
12573 line_end_offset: TAB_SIZE as usize * 2,
12574 },
12575 Invisible::Tab {
12576 line_start_offset: TAB_SIZE as usize * 2 + 1,
12577 line_end_offset: TAB_SIZE as usize * 3,
12578 },
12579 Invisible::Whitespace {
12580 line_offset: TAB_SIZE as usize * 3 + 1,
12581 },
12582 Invisible::Whitespace {
12583 line_offset: TAB_SIZE as usize * 3 + 3,
12584 },
12585 ];
12586 assert_eq!(
12587 expected_invisibles.len(),
12588 input_text
12589 .chars()
12590 .filter(|initial_char| initial_char.is_whitespace())
12591 .count(),
12592 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
12593 );
12594
12595 for show_line_numbers in [true, false] {
12596 init_test(cx, |s| {
12597 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12598 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
12599 });
12600
12601 let actual_invisibles = collect_invisibles_from_new_editor(
12602 cx,
12603 EditorMode::full(),
12604 input_text,
12605 px(500.0),
12606 show_line_numbers,
12607 );
12608
12609 assert_eq!(expected_invisibles, actual_invisibles);
12610 }
12611 }
12612
12613 #[gpui::test]
12614 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
12615 init_test(cx, |s| {
12616 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12617 s.defaults.tab_size = NonZeroU32::new(4);
12618 });
12619
12620 for editor_mode_without_invisibles in [
12621 EditorMode::SingleLine,
12622 EditorMode::AutoHeight {
12623 min_lines: 1,
12624 max_lines: Some(100),
12625 },
12626 ] {
12627 for show_line_numbers in [true, false] {
12628 let invisibles = collect_invisibles_from_new_editor(
12629 cx,
12630 editor_mode_without_invisibles.clone(),
12631 "\t\t\t| | a b",
12632 px(500.0),
12633 show_line_numbers,
12634 );
12635 assert!(
12636 invisibles.is_empty(),
12637 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
12638 );
12639 }
12640 }
12641 }
12642
12643 #[gpui::test]
12644 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
12645 let tab_size = 4;
12646 let input_text = "a\tbcd ".repeat(9);
12647 let repeated_invisibles = [
12648 Invisible::Tab {
12649 line_start_offset: 1,
12650 line_end_offset: tab_size as usize,
12651 },
12652 Invisible::Whitespace {
12653 line_offset: tab_size as usize + 3,
12654 },
12655 Invisible::Whitespace {
12656 line_offset: tab_size as usize + 4,
12657 },
12658 Invisible::Whitespace {
12659 line_offset: tab_size as usize + 5,
12660 },
12661 Invisible::Whitespace {
12662 line_offset: tab_size as usize + 6,
12663 },
12664 Invisible::Whitespace {
12665 line_offset: tab_size as usize + 7,
12666 },
12667 ];
12668 let expected_invisibles = std::iter::once(repeated_invisibles)
12669 .cycle()
12670 .take(9)
12671 .flatten()
12672 .collect::<Vec<_>>();
12673 assert_eq!(
12674 expected_invisibles.len(),
12675 input_text
12676 .chars()
12677 .filter(|initial_char| initial_char.is_whitespace())
12678 .count(),
12679 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
12680 );
12681 info!("Expected invisibles: {expected_invisibles:?}");
12682
12683 init_test(cx, |_| {});
12684
12685 // Put the same string with repeating whitespace pattern into editors of various size,
12686 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
12687 let resize_step = 10.0;
12688 let mut editor_width = 200.0;
12689 while editor_width <= 1000.0 {
12690 for show_line_numbers in [true, false] {
12691 update_test_language_settings(cx, |s| {
12692 s.defaults.tab_size = NonZeroU32::new(tab_size);
12693 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12694 s.defaults.preferred_line_length = Some(editor_width as u32);
12695 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
12696 });
12697
12698 let actual_invisibles = collect_invisibles_from_new_editor(
12699 cx,
12700 EditorMode::full(),
12701 &input_text,
12702 px(editor_width),
12703 show_line_numbers,
12704 );
12705
12706 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
12707 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
12708 let mut i = 0;
12709 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
12710 i = actual_index;
12711 match expected_invisibles.get(i) {
12712 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
12713 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
12714 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
12715 _ => {
12716 panic!(
12717 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
12718 )
12719 }
12720 },
12721 None => {
12722 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
12723 }
12724 }
12725 }
12726 let missing_expected_invisibles = &expected_invisibles[i + 1..];
12727 assert!(
12728 missing_expected_invisibles.is_empty(),
12729 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
12730 );
12731
12732 editor_width += resize_step;
12733 }
12734 }
12735 }
12736
12737 fn collect_invisibles_from_new_editor(
12738 cx: &mut TestAppContext,
12739 editor_mode: EditorMode,
12740 input_text: &str,
12741 editor_width: Pixels,
12742 show_line_numbers: bool,
12743 ) -> Vec<Invisible> {
12744 info!(
12745 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
12746 f32::from(editor_width)
12747 );
12748 let window = cx.add_window(|window, cx| {
12749 let buffer = MultiBuffer::build_simple(input_text, cx);
12750 Editor::new(editor_mode, buffer, None, window, cx)
12751 });
12752 let cx = &mut VisualTestContext::from_window(*window, cx);
12753 let editor = window.root(cx).unwrap();
12754
12755 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12756 window
12757 .update(cx, |editor, _, cx| {
12758 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12759 editor.set_wrap_width(Some(editor_width), cx);
12760 editor.set_show_line_numbers(show_line_numbers, cx);
12761 })
12762 .unwrap();
12763 let (_, state) = cx.draw(
12764 point(px(500.), px(500.)),
12765 size(px(500.), px(500.)),
12766 |_, _| EditorElement::new(&editor, style),
12767 );
12768 state
12769 .position_map
12770 .line_layouts
12771 .iter()
12772 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
12773 .cloned()
12774 .collect()
12775 }
12776
12777 #[gpui::test]
12778 fn test_merge_overlapping_ranges() {
12779 let base_bg = Hsla::white();
12780 let color1 = Hsla {
12781 h: 0.0,
12782 s: 0.5,
12783 l: 0.5,
12784 a: 0.5,
12785 };
12786 let color2 = Hsla {
12787 h: 120.0,
12788 s: 0.5,
12789 l: 0.5,
12790 a: 0.5,
12791 };
12792
12793 let display_point = |col| DisplayPoint::new(DisplayRow(0), col);
12794 let cols = |v: &Vec<(Range<DisplayPoint>, Hsla)>| -> Vec<(u32, u32)> {
12795 v.iter()
12796 .map(|(r, _)| (r.start.column(), r.end.column()))
12797 .collect()
12798 };
12799
12800 // Test overlapping ranges blend colors
12801 let overlapping = vec![
12802 (display_point(5)..display_point(15), color1),
12803 (display_point(10)..display_point(20), color2),
12804 ];
12805 let result = EditorElement::merge_overlapping_ranges(overlapping, base_bg);
12806 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
12807
12808 // Test middle segment should have blended color
12809 let blended = Hsla::blend(Hsla::blend(base_bg, color1), color2);
12810 assert_eq!(result[1].1, blended);
12811
12812 // Test adjacent same-color ranges merge
12813 let adjacent_same = vec![
12814 (display_point(5)..display_point(10), color1),
12815 (display_point(10)..display_point(15), color1),
12816 ];
12817 let result = EditorElement::merge_overlapping_ranges(adjacent_same, base_bg);
12818 assert_eq!(cols(&result), vec![(5, 15)]);
12819
12820 // Test contained range splits
12821 let contained = vec![
12822 (display_point(5)..display_point(20), color1),
12823 (display_point(10)..display_point(15), color2),
12824 ];
12825 let result = EditorElement::merge_overlapping_ranges(contained, base_bg);
12826 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
12827
12828 // Test multiple overlaps split at every boundary
12829 let color3 = Hsla {
12830 h: 240.0,
12831 s: 0.5,
12832 l: 0.5,
12833 a: 0.5,
12834 };
12835 let complex = vec![
12836 (display_point(5)..display_point(12), color1),
12837 (display_point(8)..display_point(16), color2),
12838 (display_point(10)..display_point(14), color3),
12839 ];
12840 let result = EditorElement::merge_overlapping_ranges(complex, base_bg);
12841 assert_eq!(
12842 cols(&result),
12843 vec![(5, 8), (8, 10), (10, 12), (12, 14), (14, 16)]
12844 );
12845 }
12846
12847 #[gpui::test]
12848 fn test_bg_segments_per_row() {
12849 let base_bg = Hsla::white();
12850
12851 // Case A: selection spans three display rows: row 1 [5, end), full row 2, row 3 [0, 7)
12852 {
12853 let selection_color = Hsla {
12854 h: 200.0,
12855 s: 0.5,
12856 l: 0.5,
12857 a: 0.5,
12858 };
12859 let player_color = PlayerColor {
12860 cursor: selection_color,
12861 background: selection_color,
12862 selection: selection_color,
12863 };
12864
12865 let spanning_selection = SelectionLayout {
12866 head: DisplayPoint::new(DisplayRow(3), 7),
12867 cursor_shape: CursorShape::Bar,
12868 is_newest: true,
12869 is_local: true,
12870 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 7),
12871 active_rows: DisplayRow(1)..DisplayRow(4),
12872 user_name: None,
12873 };
12874
12875 let selections = vec![(player_color, vec![spanning_selection])];
12876 let result = EditorElement::bg_segments_per_row(
12877 DisplayRow(0)..DisplayRow(5),
12878 &selections,
12879 &[],
12880 base_bg,
12881 );
12882
12883 assert_eq!(result.len(), 5);
12884 assert!(result[0].is_empty());
12885 assert_eq!(result[1].len(), 1);
12886 assert_eq!(result[2].len(), 1);
12887 assert_eq!(result[3].len(), 1);
12888 assert!(result[4].is_empty());
12889
12890 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
12891 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
12892 assert_eq!(result[1][0].0.end.column(), u32::MAX);
12893 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
12894 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
12895 assert_eq!(result[2][0].0.end.column(), u32::MAX);
12896 assert_eq!(result[3][0].0.start, DisplayPoint::new(DisplayRow(3), 0));
12897 assert_eq!(result[3][0].0.end, DisplayPoint::new(DisplayRow(3), 7));
12898 }
12899
12900 // Case B: selection ends exactly at the start of row 3, excluding row 3
12901 {
12902 let selection_color = Hsla {
12903 h: 120.0,
12904 s: 0.5,
12905 l: 0.5,
12906 a: 0.5,
12907 };
12908 let player_color = PlayerColor {
12909 cursor: selection_color,
12910 background: selection_color,
12911 selection: selection_color,
12912 };
12913
12914 let selection = SelectionLayout {
12915 head: DisplayPoint::new(DisplayRow(2), 0),
12916 cursor_shape: CursorShape::Bar,
12917 is_newest: true,
12918 is_local: true,
12919 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 0),
12920 active_rows: DisplayRow(1)..DisplayRow(3),
12921 user_name: None,
12922 };
12923
12924 let selections = vec![(player_color, vec![selection])];
12925 let result = EditorElement::bg_segments_per_row(
12926 DisplayRow(0)..DisplayRow(4),
12927 &selections,
12928 &[],
12929 base_bg,
12930 );
12931
12932 assert_eq!(result.len(), 4);
12933 assert!(result[0].is_empty());
12934 assert_eq!(result[1].len(), 1);
12935 assert_eq!(result[2].len(), 1);
12936 assert!(result[3].is_empty());
12937
12938 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
12939 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
12940 assert_eq!(result[1][0].0.end.column(), u32::MAX);
12941 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
12942 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
12943 assert_eq!(result[2][0].0.end.column(), u32::MAX);
12944 }
12945 }
12946
12947 #[cfg(test)]
12948 fn generate_test_run(len: usize, color: Hsla) -> TextRun {
12949 TextRun {
12950 len,
12951 color,
12952 ..Default::default()
12953 }
12954 }
12955
12956 #[gpui::test]
12957 fn test_split_runs_by_bg_segments(cx: &mut gpui::TestAppContext) {
12958 init_test(cx, |_| {});
12959
12960 let dx = |start: u32, end: u32| {
12961 DisplayPoint::new(DisplayRow(0), start)..DisplayPoint::new(DisplayRow(0), end)
12962 };
12963
12964 let text_color = Hsla {
12965 h: 210.0,
12966 s: 0.1,
12967 l: 0.4,
12968 a: 1.0,
12969 };
12970 let bg_1 = Hsla {
12971 h: 30.0,
12972 s: 0.6,
12973 l: 0.8,
12974 a: 1.0,
12975 };
12976 let bg_2 = Hsla {
12977 h: 200.0,
12978 s: 0.6,
12979 l: 0.2,
12980 a: 1.0,
12981 };
12982 let min_contrast = 45.0;
12983 let adjusted_bg1 = ensure_minimum_contrast(text_color, bg_1, min_contrast);
12984 let adjusted_bg2 = ensure_minimum_contrast(text_color, bg_2, min_contrast);
12985
12986 // Case A: single run; disjoint segments inside the run
12987 {
12988 let runs = vec![generate_test_run(20, text_color)];
12989 let segs = vec![(dx(5, 10), bg_1), (dx(12, 16), bg_2)];
12990 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
12991 // Expected slices: [0,5) [5,10) [10,12) [12,16) [16,20)
12992 assert_eq!(
12993 out.iter().map(|r| r.len).collect::<Vec<_>>(),
12994 vec![5, 5, 2, 4, 4]
12995 );
12996 assert_eq!(out[0].color, text_color);
12997 assert_eq!(out[1].color, adjusted_bg1);
12998 assert_eq!(out[2].color, text_color);
12999 assert_eq!(out[3].color, adjusted_bg2);
13000 assert_eq!(out[4].color, text_color);
13001 }
13002
13003 // Case B: multiple runs; segment extends to end of line (u32::MAX)
13004 {
13005 let runs = vec![
13006 generate_test_run(8, text_color),
13007 generate_test_run(7, text_color),
13008 ];
13009 let segs = vec![(dx(6, u32::MAX), bg_1)];
13010 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13011 // Expected slices across runs: [0,6) [6,8) | [0,7)
13012 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![6, 2, 7]);
13013 assert_eq!(out[0].color, text_color);
13014 assert_eq!(out[1].color, adjusted_bg1);
13015 assert_eq!(out[2].color, adjusted_bg1);
13016 }
13017
13018 // Case C: multi-byte characters
13019 {
13020 // for text: "Hello π δΈη!"
13021 let runs = vec![
13022 generate_test_run(5, text_color), // "Hello"
13023 generate_test_run(6, text_color), // " π "
13024 generate_test_run(6, text_color), // "δΈη"
13025 generate_test_run(1, text_color), // "!"
13026 ];
13027 // selecting "π δΈ"
13028 let segs = vec![(dx(6, 14), bg_1)];
13029 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13030 // "Hello" | " " | "π " | "δΈ" | "η" | "!"
13031 assert_eq!(
13032 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13033 vec![5, 1, 5, 3, 3, 1]
13034 );
13035 assert_eq!(out[0].color, text_color); // "Hello"
13036 assert_eq!(out[2].color, adjusted_bg1); // "π "
13037 assert_eq!(out[3].color, adjusted_bg1); // "δΈ"
13038 assert_eq!(out[4].color, text_color); // "η"
13039 assert_eq!(out[5].color, text_color); // "!"
13040 }
13041
13042 // Case D: split multiple consecutive text runs with segments
13043 {
13044 let segs = vec![
13045 (dx(2, 4), bg_1), // selecting "cd"
13046 (dx(4, 8), bg_2), // selecting "efgh"
13047 (dx(9, 11), bg_1), // selecting "jk"
13048 (dx(12, 16), bg_2), // selecting "mnop"
13049 (dx(18, 19), bg_1), // selecting "s"
13050 ];
13051
13052 // for text: "abcdef"
13053 let runs = vec![
13054 generate_test_run(2, text_color), // ab
13055 generate_test_run(4, text_color), // cdef
13056 ];
13057 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13058 // new splits "ab", "cd", "ef"
13059 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![2, 2, 2]);
13060 assert_eq!(out[0].color, text_color);
13061 assert_eq!(out[1].color, adjusted_bg1);
13062 assert_eq!(out[2].color, adjusted_bg2);
13063
13064 // for text: "ghijklmn"
13065 let runs = vec![
13066 generate_test_run(3, text_color), // ghi
13067 generate_test_run(2, text_color), // jk
13068 generate_test_run(3, text_color), // lmn
13069 ];
13070 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 6); // 2 + 4 from first run
13071 // new splits "gh", "i", "jk", "l", "mn"
13072 assert_eq!(
13073 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13074 vec![2, 1, 2, 1, 2]
13075 );
13076 assert_eq!(out[0].color, adjusted_bg2);
13077 assert_eq!(out[1].color, text_color);
13078 assert_eq!(out[2].color, adjusted_bg1);
13079 assert_eq!(out[3].color, text_color);
13080 assert_eq!(out[4].color, adjusted_bg2);
13081
13082 // for text: "opqrs"
13083 let runs = vec![
13084 generate_test_run(1, text_color), // o
13085 generate_test_run(4, text_color), // pqrs
13086 ];
13087 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 14); // 6 + 3 + 2 + 3 from first two runs
13088 // new splits "o", "p", "qr", "s"
13089 assert_eq!(
13090 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13091 vec![1, 1, 2, 1]
13092 );
13093 assert_eq!(out[0].color, adjusted_bg2);
13094 assert_eq!(out[1].color, adjusted_bg2);
13095 assert_eq!(out[2].color, text_color);
13096 assert_eq!(out[3].color, adjusted_bg1);
13097 }
13098 }
13099}