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, EditDisplayMode, EditPrediction, Editor, EditorMode,
6 EditorSettings, EditorSnapshot, EditorStyle, FILE_HEADER_HEIGHT, FocusedBlock,
7 GutterDimensions, HalfPageDown, HalfPageUp, HandleInput, HoveredCursor, InlayHintRefreshReason,
8 JumpData, LineDown, LineHighlight, LineUp, MAX_LINE_LEN, MINIMAP_FONT_SIZE,
9 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT, OpenExcerpts, PageDown, PageUp, PhantomBreakpointIndicator,
10 PhantomDiffReviewIndicator, Point, RowExt, RowRangeExt, SelectPhase, Selection,
11 SelectionDragState, SelectionEffects, SizingBehavior, SoftWrap, StickyHeaderExcerpt, ToPoint,
12 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 mouse_context_menu::{self, MenuPosition},
31 scroll::{
32 ActiveScrollbarState, Autoscroll, ScrollOffset, ScrollPixelOffset, ScrollbarThumbState,
33 scroll_amount::ScrollAmount,
34 },
35};
36use buffer_diff::{DiffHunkStatus, DiffHunkStatusKind};
37use collections::{BTreeMap, HashMap};
38use feature_flags::{DiffReviewFeatureFlag, FeatureFlagAppExt as _};
39use file_icons::FileIcons;
40use git::{Oid, blame::BlameEntry, commit::ParsedCommitMessage, status::FileStatus};
41use gpui::{
42 Action, Along, AnyElement, App, AppContext, AvailableSpace, Axis as ScrollbarAxis, BorderStyle,
43 Bounds, ClickEvent, ClipboardItem, ContentMask, Context, Corner, Corners, CursorStyle,
44 DispatchPhase, Edges, Element, ElementInputHandler, Entity, Focusable as _, FontId, FontWeight,
45 GlobalElementId, Hitbox, HitboxBehavior, Hsla, InteractiveElement, IntoElement, IsZero,
46 KeybindingKeystroke, Length, Modifiers, ModifiersChangedEvent, MouseButton, MouseClickEvent,
47 MouseDownEvent, MouseMoveEvent, MousePressureEvent, MouseUpEvent, PaintQuad, ParentElement,
48 Pixels, PressureStage, ScrollDelta, ScrollHandle, ScrollWheelEvent, ShapedLine, SharedString,
49 Size, StatefulInteractiveElement, Style, Styled, StyledText, TextAlign, TextRun,
50 TextStyleRefinement, WeakEntity, Window, anchored, checkerboard, deferred, div, fill,
51 linear_color_stop, linear_gradient, outline, point, px, quad, relative, size, solid_background,
52 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;
63
64use project::{
65 DisableAiSettings, Entry, ProjectPath,
66 debugger::breakpoint_store::{Breakpoint, BreakpointSessionState},
67 project_settings::ProjectSettings,
68};
69use settings::{
70 GitGutterSetting, GitHunkStyleSetting, IndentGuideBackgroundColoring, IndentGuideColoring,
71 RelativeLineNumbers, Settings,
72};
73use smallvec::{SmallVec, smallvec};
74use std::{
75 any::TypeId,
76 borrow::Cow,
77 cell::Cell,
78 cmp::{self, Ordering},
79 fmt::{self, Write},
80 iter, mem,
81 ops::{Deref, Range},
82 path::{self, Path},
83 rc::Rc,
84 sync::Arc,
85 time::{Duration, Instant},
86};
87use sum_tree::Bias;
88use text::{BufferId, SelectionGoal};
89use theme::{ActiveTheme, Appearance, BufferLineHeight, PlayerColor};
90use ui::utils::ensure_minimum_contrast;
91use ui::{
92 ButtonLike, ContextMenu, Indicator, KeyBinding, POPOVER_Y_PADDING, Tooltip, prelude::*,
93 right_click_menu, scrollbars::ShowScrollbar, text_for_keystroke,
94};
95use unicode_segmentation::UnicodeSegmentation;
96use util::post_inc;
97use util::{RangeExt, ResultExt, debug_panic};
98use workspace::{
99 CollaboratorId, ItemHandle, ItemSettings, OpenInTerminal, OpenTerminal, RevealInProjectPanel,
100 Workspace,
101 item::{BreadcrumbText, Item, ItemBufferKind},
102 notifications::NotifyTaskExt,
103};
104
105/// Determines what kinds of highlights should be applied to a lines background.
106#[derive(Clone, Copy, Default)]
107struct LineHighlightSpec {
108 selection: bool,
109 breakpoint: bool,
110 _active_stack_frame: bool,
111}
112
113#[derive(Debug)]
114struct SelectionLayout {
115 head: DisplayPoint,
116 cursor_shape: CursorShape,
117 is_newest: bool,
118 is_local: bool,
119 range: Range<DisplayPoint>,
120 active_rows: Range<DisplayRow>,
121 user_name: Option<SharedString>,
122}
123
124struct InlineBlameLayout {
125 element: AnyElement,
126 bounds: Bounds<Pixels>,
127 buffer_id: BufferId,
128 entry: BlameEntry,
129}
130
131impl SelectionLayout {
132 fn new<T: ToPoint + ToDisplayPoint + Clone>(
133 selection: Selection<T>,
134 line_mode: bool,
135 cursor_offset: bool,
136 cursor_shape: CursorShape,
137 map: &DisplaySnapshot,
138 is_newest: bool,
139 is_local: bool,
140 user_name: Option<SharedString>,
141 ) -> Self {
142 let point_selection = selection.map(|p| p.to_point(map.buffer_snapshot()));
143 let display_selection = point_selection.map(|p| p.to_display_point(map));
144 let mut range = display_selection.range();
145 let mut head = display_selection.head();
146 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
147 ..map.next_line_boundary(point_selection.end).1.row();
148
149 // vim visual line mode
150 if line_mode {
151 let point_range = map.expand_to_line(point_selection.range());
152 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
153 }
154
155 // any vim visual mode (including line mode)
156 if cursor_offset && !range.is_empty() && !selection.reversed {
157 if head.column() > 0 {
158 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left);
159 } else if head.row().0 > 0 && head != map.max_point() {
160 head = map.clip_point(
161 DisplayPoint::new(
162 head.row().previous_row(),
163 map.line_len(head.row().previous_row()),
164 ),
165 Bias::Left,
166 );
167 // updating range.end is a no-op unless you're cursor is
168 // on the newline containing a multi-buffer divider
169 // in which case the clip_point may have moved the head up
170 // an additional row.
171 range.end = DisplayPoint::new(head.row().next_row(), 0);
172 active_rows.end = head.row();
173 }
174 }
175
176 Self {
177 head,
178 cursor_shape,
179 is_newest,
180 is_local,
181 range,
182 active_rows,
183 user_name,
184 }
185 }
186}
187
188#[derive(Default)]
189struct RenderBlocksOutput {
190 blocks: Vec<BlockLayout>,
191 row_block_types: HashMap<DisplayRow, bool>,
192 resized_blocks: Option<HashMap<CustomBlockId, u32>>,
193}
194
195pub struct EditorElement {
196 editor: Entity<Editor>,
197 style: EditorStyle,
198 split_side: Option<SplitSide>,
199}
200
201#[derive(Debug, Clone, Copy, PartialEq, Eq)]
202pub enum SplitSide {
203 Left,
204 Right,
205}
206
207impl EditorElement {
208 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
209
210 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
211 Self {
212 editor: editor.clone(),
213 style,
214 split_side: None,
215 }
216 }
217
218 pub fn set_split_side(&mut self, side: SplitSide) {
219 self.split_side = Some(side);
220 }
221
222 fn should_show_buffer_headers(&self) -> bool {
223 self.split_side.is_none()
224 }
225
226 fn register_actions(&self, window: &mut Window, cx: &mut App) {
227 let editor = &self.editor;
228 editor.update(cx, |editor, cx| {
229 for action in editor.editor_actions.borrow().values() {
230 (action)(editor, window, cx)
231 }
232 });
233
234 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
235 crate::clangd_ext::apply_related_actions(editor, window, cx);
236
237 register_action(editor, window, Editor::open_context_menu);
238 register_action(editor, window, Editor::move_left);
239 register_action(editor, window, Editor::move_right);
240 register_action(editor, window, Editor::move_down);
241 register_action(editor, window, Editor::move_down_by_lines);
242 register_action(editor, window, Editor::select_down_by_lines);
243 register_action(editor, window, Editor::move_up);
244 register_action(editor, window, Editor::move_up_by_lines);
245 register_action(editor, window, Editor::select_up_by_lines);
246 register_action(editor, window, Editor::select_page_down);
247 register_action(editor, window, Editor::select_page_up);
248 register_action(editor, window, Editor::cancel);
249 register_action(editor, window, Editor::newline);
250 register_action(editor, window, Editor::newline_above);
251 register_action(editor, window, Editor::newline_below);
252 register_action(editor, window, Editor::backspace);
253 register_action(editor, window, Editor::blame_hover);
254 register_action(editor, window, Editor::delete);
255 register_action(editor, window, Editor::tab);
256 register_action(editor, window, Editor::next_snippet_tabstop);
257 register_action(editor, window, Editor::previous_snippet_tabstop);
258 register_action(editor, window, Editor::backtab);
259 register_action(editor, window, Editor::indent);
260 register_action(editor, window, Editor::outdent);
261 register_action(editor, window, Editor::autoindent);
262 register_action(editor, window, Editor::delete_line);
263 register_action(editor, window, Editor::join_lines);
264 register_action(editor, window, Editor::sort_lines_by_length);
265 register_action(editor, window, Editor::sort_lines_case_sensitive);
266 register_action(editor, window, Editor::sort_lines_case_insensitive);
267 register_action(editor, window, Editor::reverse_lines);
268 register_action(editor, window, Editor::shuffle_lines);
269 register_action(editor, window, Editor::rotate_selections_forward);
270 register_action(editor, window, Editor::rotate_selections_backward);
271 register_action(editor, window, Editor::convert_indentation_to_spaces);
272 register_action(editor, window, Editor::convert_indentation_to_tabs);
273 register_action(editor, window, Editor::convert_to_upper_case);
274 register_action(editor, window, Editor::convert_to_lower_case);
275 register_action(editor, window, Editor::convert_to_title_case);
276 register_action(editor, window, Editor::convert_to_snake_case);
277 register_action(editor, window, Editor::convert_to_kebab_case);
278 register_action(editor, window, Editor::convert_to_upper_camel_case);
279 register_action(editor, window, Editor::convert_to_lower_camel_case);
280 register_action(editor, window, Editor::convert_to_opposite_case);
281 register_action(editor, window, Editor::convert_to_sentence_case);
282 register_action(editor, window, Editor::toggle_case);
283 register_action(editor, window, Editor::convert_to_rot13);
284 register_action(editor, window, Editor::convert_to_rot47);
285 register_action(editor, window, Editor::delete_to_previous_word_start);
286 register_action(editor, window, Editor::delete_to_previous_subword_start);
287 register_action(editor, window, Editor::delete_to_next_word_end);
288 register_action(editor, window, Editor::delete_to_next_subword_end);
289 register_action(editor, window, Editor::delete_to_beginning_of_line);
290 register_action(editor, window, Editor::delete_to_end_of_line);
291 register_action(editor, window, Editor::cut_to_end_of_line);
292 register_action(editor, window, Editor::duplicate_line_up);
293 register_action(editor, window, Editor::duplicate_line_down);
294 register_action(editor, window, Editor::duplicate_selection);
295 register_action(editor, window, Editor::move_line_up);
296 register_action(editor, window, Editor::move_line_down);
297 register_action(editor, window, Editor::transpose);
298 register_action(editor, window, Editor::rewrap);
299 register_action(editor, window, Editor::cut);
300 register_action(editor, window, Editor::kill_ring_cut);
301 register_action(editor, window, Editor::kill_ring_yank);
302 register_action(editor, window, Editor::copy);
303 register_action(editor, window, Editor::copy_and_trim);
304 register_action(editor, window, Editor::diff_clipboard_with_selection);
305 register_action(editor, window, Editor::paste);
306 register_action(editor, window, Editor::undo);
307 register_action(editor, window, Editor::redo);
308 register_action(editor, window, Editor::move_page_up);
309 register_action(editor, window, Editor::move_page_down);
310 register_action(editor, window, Editor::next_screen);
311 register_action(editor, window, Editor::scroll_cursor_top);
312 register_action(editor, window, Editor::scroll_cursor_center);
313 register_action(editor, window, Editor::scroll_cursor_bottom);
314 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
315 register_action(editor, window, |editor, _: &LineDown, window, cx| {
316 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
317 });
318 register_action(editor, window, |editor, _: &LineUp, window, cx| {
319 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
320 });
321 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
322 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
323 });
324 register_action(
325 editor,
326 window,
327 |editor, HandleInput(text): &HandleInput, window, cx| {
328 if text.is_empty() {
329 return;
330 }
331 editor.handle_input(text, window, cx);
332 },
333 );
334 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
335 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
336 });
337 register_action(editor, window, |editor, _: &PageDown, window, cx| {
338 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
339 });
340 register_action(editor, window, |editor, _: &PageUp, window, cx| {
341 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
342 });
343 register_action(editor, window, Editor::move_to_previous_word_start);
344 register_action(editor, window, Editor::move_to_previous_subword_start);
345 register_action(editor, window, Editor::move_to_next_word_end);
346 register_action(editor, window, Editor::move_to_next_subword_end);
347 register_action(editor, window, Editor::move_to_beginning_of_line);
348 register_action(editor, window, Editor::move_to_end_of_line);
349 register_action(editor, window, Editor::move_to_start_of_paragraph);
350 register_action(editor, window, Editor::move_to_end_of_paragraph);
351 register_action(editor, window, Editor::move_to_beginning);
352 register_action(editor, window, Editor::move_to_end);
353 register_action(editor, window, Editor::move_to_start_of_excerpt);
354 register_action(editor, window, Editor::move_to_start_of_next_excerpt);
355 register_action(editor, window, Editor::move_to_end_of_excerpt);
356 register_action(editor, window, Editor::move_to_end_of_previous_excerpt);
357 register_action(editor, window, Editor::select_up);
358 register_action(editor, window, Editor::select_down);
359 register_action(editor, window, Editor::select_left);
360 register_action(editor, window, Editor::select_right);
361 register_action(editor, window, Editor::select_to_previous_word_start);
362 register_action(editor, window, Editor::select_to_previous_subword_start);
363 register_action(editor, window, Editor::select_to_next_word_end);
364 register_action(editor, window, Editor::select_to_next_subword_end);
365 register_action(editor, window, Editor::select_to_beginning_of_line);
366 register_action(editor, window, Editor::select_to_end_of_line);
367 register_action(editor, window, Editor::select_to_start_of_paragraph);
368 register_action(editor, window, Editor::select_to_end_of_paragraph);
369 register_action(editor, window, Editor::select_to_start_of_excerpt);
370 register_action(editor, window, Editor::select_to_start_of_next_excerpt);
371 register_action(editor, window, Editor::select_to_end_of_excerpt);
372 register_action(editor, window, Editor::select_to_end_of_previous_excerpt);
373 register_action(editor, window, Editor::select_to_beginning);
374 register_action(editor, window, Editor::select_to_end);
375 register_action(editor, window, Editor::select_all);
376 register_action(editor, window, |editor, action, window, cx| {
377 editor.select_all_matches(action, window, cx).log_err();
378 });
379 register_action(editor, window, Editor::select_line);
380 register_action(editor, window, Editor::split_selection_into_lines);
381 register_action(editor, window, Editor::add_selection_above);
382 register_action(editor, window, Editor::add_selection_below);
383 register_action(editor, window, Editor::insert_snippet_at_selections);
384 register_action(editor, window, |editor, action, window, cx| {
385 editor.select_next(action, window, cx).log_err();
386 });
387 register_action(editor, window, |editor, action, window, cx| {
388 editor.select_previous(action, window, cx).log_err();
389 });
390 register_action(editor, window, |editor, action, window, cx| {
391 editor.find_next_match(action, window, cx).log_err();
392 });
393 register_action(editor, window, |editor, action, window, cx| {
394 editor.find_previous_match(action, window, cx).log_err();
395 });
396 register_action(editor, window, Editor::toggle_comments);
397 register_action(editor, window, Editor::select_larger_syntax_node);
398 register_action(editor, window, Editor::select_smaller_syntax_node);
399 register_action(editor, window, Editor::select_next_syntax_node);
400 register_action(editor, window, Editor::select_prev_syntax_node);
401 register_action(
402 editor,
403 window,
404 Editor::select_to_start_of_larger_syntax_node,
405 );
406 register_action(editor, window, Editor::select_to_end_of_larger_syntax_node);
407 register_action(editor, window, Editor::unwrap_syntax_node);
408 register_action(editor, window, Editor::move_to_start_of_larger_syntax_node);
409 register_action(editor, window, Editor::move_to_end_of_larger_syntax_node);
410 register_action(editor, window, Editor::select_enclosing_symbol);
411 register_action(editor, window, Editor::move_to_enclosing_bracket);
412 register_action(editor, window, Editor::undo_selection);
413 register_action(editor, window, Editor::redo_selection);
414 if editor.read(cx).buffer_kind(cx) == ItemBufferKind::Multibuffer {
415 register_action(editor, window, Editor::expand_excerpts);
416 register_action(editor, window, Editor::expand_excerpts_up);
417 register_action(editor, window, Editor::expand_excerpts_down);
418 }
419 register_action(editor, window, Editor::go_to_diagnostic);
420 register_action(editor, window, Editor::go_to_prev_diagnostic);
421 register_action(editor, window, Editor::go_to_next_hunk);
422 register_action(editor, window, Editor::go_to_prev_hunk);
423 register_action(editor, window, Editor::go_to_next_document_highlight);
424 register_action(editor, window, Editor::go_to_prev_document_highlight);
425 register_action(editor, window, |editor, action, window, cx| {
426 editor
427 .go_to_definition(action, window, cx)
428 .detach_and_log_err(cx);
429 });
430 register_action(editor, window, |editor, action, window, cx| {
431 editor
432 .go_to_definition_split(action, window, cx)
433 .detach_and_log_err(cx);
434 });
435 register_action(editor, window, |editor, action, window, cx| {
436 editor
437 .go_to_declaration(action, window, cx)
438 .detach_and_log_err(cx);
439 });
440 register_action(editor, window, |editor, action, window, cx| {
441 editor
442 .go_to_declaration_split(action, window, cx)
443 .detach_and_log_err(cx);
444 });
445 register_action(editor, window, |editor, action, window, cx| {
446 editor
447 .go_to_implementation(action, window, cx)
448 .detach_and_log_err(cx);
449 });
450 register_action(editor, window, |editor, action, window, cx| {
451 editor
452 .go_to_implementation_split(action, window, cx)
453 .detach_and_log_err(cx);
454 });
455 register_action(editor, window, |editor, action, window, cx| {
456 editor
457 .go_to_type_definition(action, window, cx)
458 .detach_and_log_err(cx);
459 });
460 register_action(editor, window, |editor, action, window, cx| {
461 editor
462 .go_to_type_definition_split(action, window, cx)
463 .detach_and_log_err(cx);
464 });
465 register_action(editor, window, Editor::open_url);
466 register_action(editor, window, Editor::open_selected_filename);
467 register_action(editor, window, Editor::fold);
468 register_action(editor, window, Editor::fold_at_level);
469 register_action(editor, window, Editor::fold_at_level_1);
470 register_action(editor, window, Editor::fold_at_level_2);
471 register_action(editor, window, Editor::fold_at_level_3);
472 register_action(editor, window, Editor::fold_at_level_4);
473 register_action(editor, window, Editor::fold_at_level_5);
474 register_action(editor, window, Editor::fold_at_level_6);
475 register_action(editor, window, Editor::fold_at_level_7);
476 register_action(editor, window, Editor::fold_at_level_8);
477 register_action(editor, window, Editor::fold_at_level_9);
478 register_action(editor, window, Editor::fold_all);
479 register_action(editor, window, Editor::fold_function_bodies);
480 register_action(editor, window, Editor::fold_recursive);
481 register_action(editor, window, Editor::toggle_fold);
482 register_action(editor, window, Editor::toggle_fold_recursive);
483 register_action(editor, window, Editor::toggle_fold_all);
484 register_action(editor, window, Editor::unfold_lines);
485 register_action(editor, window, Editor::unfold_recursive);
486 register_action(editor, window, Editor::unfold_all);
487 register_action(editor, window, Editor::fold_selected_ranges);
488 register_action(editor, window, Editor::set_mark);
489 register_action(editor, window, Editor::swap_selection_ends);
490 register_action(editor, window, Editor::show_completions);
491 register_action(editor, window, Editor::show_word_completions);
492 register_action(editor, window, Editor::toggle_code_actions);
493 register_action(editor, window, Editor::open_excerpts);
494 register_action(editor, window, Editor::open_excerpts_in_split);
495 register_action(editor, window, Editor::toggle_soft_wrap);
496 register_action(editor, window, Editor::toggle_tab_bar);
497 register_action(editor, window, Editor::toggle_line_numbers);
498 register_action(editor, window, Editor::toggle_relative_line_numbers);
499 register_action(editor, window, Editor::toggle_indent_guides);
500 register_action(editor, window, Editor::toggle_inlay_hints);
501 register_action(editor, window, Editor::toggle_semantic_highlights);
502 register_action(editor, window, Editor::toggle_edit_predictions);
503 if editor.read(cx).diagnostics_enabled() {
504 register_action(editor, window, Editor::toggle_diagnostics);
505 }
506 if editor.read(cx).inline_diagnostics_enabled() {
507 register_action(editor, window, Editor::toggle_inline_diagnostics);
508 }
509 if editor.read(cx).supports_minimap(cx) {
510 register_action(editor, window, Editor::toggle_minimap);
511 }
512 register_action(editor, window, hover_popover::hover);
513 register_action(editor, window, Editor::reveal_in_finder);
514 register_action(editor, window, Editor::copy_path);
515 register_action(editor, window, Editor::copy_relative_path);
516 register_action(editor, window, Editor::copy_file_name);
517 register_action(editor, window, Editor::copy_file_name_without_extension);
518 register_action(editor, window, Editor::copy_highlight_json);
519 register_action(editor, window, Editor::copy_permalink_to_line);
520 register_action(editor, window, Editor::open_permalink_to_line);
521 register_action(editor, window, Editor::copy_file_location);
522 register_action(editor, window, Editor::toggle_git_blame);
523 register_action(editor, window, Editor::toggle_git_blame_inline);
524 register_action(editor, window, Editor::open_git_blame_commit);
525 register_action(editor, window, Editor::toggle_selected_diff_hunks);
526 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
527 register_action(editor, window, Editor::stage_and_next);
528 register_action(editor, window, Editor::unstage_and_next);
529 register_action(editor, window, Editor::expand_all_diff_hunks);
530 register_action(editor, window, Editor::collapse_all_diff_hunks);
531 register_action(editor, window, Editor::toggle_review_comments_expanded);
532 register_action(editor, window, Editor::submit_diff_review_comment_action);
533 register_action(editor, window, Editor::edit_review_comment);
534 register_action(editor, window, Editor::delete_review_comment);
535 register_action(editor, window, Editor::confirm_edit_review_comment_action);
536 register_action(editor, window, Editor::cancel_edit_review_comment_action);
537 register_action(editor, window, Editor::go_to_previous_change);
538 register_action(editor, window, Editor::go_to_next_change);
539 register_action(editor, window, Editor::go_to_prev_reference);
540 register_action(editor, window, Editor::go_to_next_reference);
541
542 register_action(editor, window, |editor, action, window, cx| {
543 if let Some(task) = editor.format(action, window, cx) {
544 task.detach_and_notify_err(window, cx);
545 } else {
546 cx.propagate();
547 }
548 });
549 register_action(editor, window, |editor, action, window, cx| {
550 if let Some(task) = editor.format_selections(action, window, cx) {
551 task.detach_and_notify_err(window, cx);
552 } else {
553 cx.propagate();
554 }
555 });
556 register_action(editor, window, |editor, action, window, cx| {
557 if let Some(task) = editor.organize_imports(action, window, cx) {
558 task.detach_and_notify_err(window, cx);
559 } else {
560 cx.propagate();
561 }
562 });
563 register_action(editor, window, Editor::restart_language_server);
564 register_action(editor, window, Editor::stop_language_server);
565 register_action(editor, window, Editor::show_character_palette);
566 register_action(editor, window, |editor, action, window, cx| {
567 if let Some(task) = editor.confirm_completion(action, window, cx) {
568 task.detach_and_notify_err(window, cx);
569 } else {
570 cx.propagate();
571 }
572 });
573 register_action(editor, window, |editor, action, window, cx| {
574 if let Some(task) = editor.confirm_completion_replace(action, window, cx) {
575 task.detach_and_notify_err(window, cx);
576 } else {
577 cx.propagate();
578 }
579 });
580 register_action(editor, window, |editor, action, window, cx| {
581 if let Some(task) = editor.confirm_completion_insert(action, window, cx) {
582 task.detach_and_notify_err(window, cx);
583 } else {
584 cx.propagate();
585 }
586 });
587 register_action(editor, window, |editor, action, window, cx| {
588 if let Some(task) = editor.compose_completion(action, window, cx) {
589 task.detach_and_notify_err(window, cx);
590 } else {
591 cx.propagate();
592 }
593 });
594 register_action(editor, window, |editor, action, window, cx| {
595 if let Some(task) = editor.confirm_code_action(action, window, cx) {
596 task.detach_and_notify_err(window, cx);
597 } else {
598 cx.propagate();
599 }
600 });
601 register_action(editor, window, |editor, action, window, cx| {
602 if let Some(task) = editor.rename(action, window, cx) {
603 task.detach_and_notify_err(window, cx);
604 } else {
605 cx.propagate();
606 }
607 });
608 register_action(editor, window, |editor, action, window, cx| {
609 if let Some(task) = editor.confirm_rename(action, window, cx) {
610 task.detach_and_notify_err(window, cx);
611 } else {
612 cx.propagate();
613 }
614 });
615 register_action(editor, window, |editor, action, window, cx| {
616 if let Some(task) = editor.find_all_references(action, window, cx) {
617 task.detach_and_log_err(cx);
618 } else {
619 cx.propagate();
620 }
621 });
622 register_action(editor, window, Editor::show_signature_help);
623 register_action(editor, window, Editor::signature_help_prev);
624 register_action(editor, window, Editor::signature_help_next);
625 register_action(editor, window, Editor::show_edit_prediction);
626 register_action(editor, window, Editor::context_menu_first);
627 register_action(editor, window, Editor::context_menu_prev);
628 register_action(editor, window, Editor::context_menu_next);
629 register_action(editor, window, Editor::context_menu_last);
630 register_action(editor, window, Editor::display_cursor_names);
631 register_action(editor, window, Editor::unique_lines_case_insensitive);
632 register_action(editor, window, Editor::unique_lines_case_sensitive);
633 register_action(editor, window, Editor::accept_next_word_edit_prediction);
634 register_action(editor, window, Editor::accept_next_line_edit_prediction);
635 register_action(editor, window, Editor::accept_edit_prediction);
636 register_action(editor, window, Editor::restore_file);
637 register_action(editor, window, Editor::git_restore);
638 register_action(editor, window, Editor::apply_all_diff_hunks);
639 register_action(editor, window, Editor::apply_selected_diff_hunks);
640 register_action(editor, window, Editor::open_active_item_in_terminal);
641 register_action(editor, window, Editor::reload_file);
642 register_action(editor, window, Editor::spawn_nearest_task);
643 register_action(editor, window, Editor::insert_uuid_v4);
644 register_action(editor, window, Editor::insert_uuid_v7);
645 register_action(editor, window, Editor::open_selections_in_multibuffer);
646 register_action(editor, window, Editor::toggle_breakpoint);
647 register_action(editor, window, Editor::edit_log_breakpoint);
648 register_action(editor, window, Editor::enable_breakpoint);
649 register_action(editor, window, Editor::disable_breakpoint);
650 register_action(editor, window, Editor::toggle_read_only);
651 if editor.read(cx).enable_wrap_selections_in_tag(cx) {
652 register_action(editor, window, Editor::wrap_selections_in_tag);
653 }
654 }
655
656 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
657 let position_map = layout.position_map.clone();
658 window.on_key_event({
659 let editor = self.editor.clone();
660 move |event: &ModifiersChangedEvent, phase, window, cx| {
661 if phase != DispatchPhase::Bubble {
662 return;
663 }
664 editor.update(cx, |editor, cx| {
665 let inlay_hint_settings = inlay_hint_settings(
666 editor.selections.newest_anchor().head(),
667 &editor.buffer.read(cx).snapshot(cx),
668 cx,
669 );
670
671 if let Some(inlay_modifiers) = inlay_hint_settings
672 .toggle_on_modifiers_press
673 .as_ref()
674 .filter(|modifiers| modifiers.modified())
675 {
676 editor.refresh_inlay_hints(
677 InlayHintRefreshReason::ModifiersChanged(
678 inlay_modifiers == &event.modifiers,
679 ),
680 cx,
681 );
682 }
683
684 if editor.hover_state.focused(window, cx) {
685 return;
686 }
687
688 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
689 })
690 }
691 });
692 }
693
694 fn mouse_left_down(
695 editor: &mut Editor,
696 event: &MouseDownEvent,
697 position_map: &PositionMap,
698 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
699 window: &mut Window,
700 cx: &mut Context<Editor>,
701 ) {
702 if window.default_prevented() {
703 return;
704 }
705
706 let text_hitbox = &position_map.text_hitbox;
707 let gutter_hitbox = &position_map.gutter_hitbox;
708 let point_for_position = position_map.point_for_position(event.position);
709 let mut click_count = event.click_count;
710 let mut modifiers = event.modifiers;
711
712 if let Some(hovered_hunk) =
713 position_map
714 .display_hunks
715 .iter()
716 .find_map(|(hunk, hunk_hitbox)| match hunk {
717 DisplayDiffHunk::Folded { .. } => None,
718 DisplayDiffHunk::Unfolded {
719 multi_buffer_range, ..
720 } => hunk_hitbox
721 .as_ref()
722 .is_some_and(|hitbox| hitbox.is_hovered(window))
723 .then(|| multi_buffer_range.clone()),
724 })
725 {
726 editor.toggle_single_diff_hunk(hovered_hunk, cx);
727 cx.notify();
728 return;
729 } else if gutter_hitbox.is_hovered(window) {
730 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
731 } else if !text_hitbox.is_hovered(window) {
732 return;
733 }
734
735 if EditorSettings::get_global(cx)
736 .drag_and_drop_selection
737 .enabled
738 && click_count == 1
739 && !modifiers.shift
740 {
741 let newest_anchor = editor.selections.newest_anchor();
742 let snapshot = editor.snapshot(window, cx);
743 let selection = newest_anchor.map(|anchor| anchor.to_display_point(&snapshot));
744 if point_for_position.intersects_selection(&selection) {
745 editor.selection_drag_state = SelectionDragState::ReadyToDrag {
746 selection: newest_anchor.clone(),
747 click_position: event.position,
748 mouse_down_time: Instant::now(),
749 };
750 cx.stop_propagation();
751 return;
752 }
753 }
754
755 let is_singleton = editor.buffer().read(cx).is_singleton();
756
757 if click_count == 2 && !is_singleton {
758 match EditorSettings::get_global(cx).double_click_in_multibuffer {
759 DoubleClickInMultibuffer::Select => {
760 // do nothing special on double click, all selection logic is below
761 }
762 DoubleClickInMultibuffer::Open => {
763 if modifiers.alt {
764 // if double click is made with alt, pretend it's a regular double click without opening and alt,
765 // and run the selection logic.
766 modifiers.alt = false;
767 } else {
768 let scroll_position_row = position_map.scroll_position.y;
769 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
770 / position_map.line_height)
771 as f64
772 + position_map.scroll_position.y)
773 as u32;
774 let multi_buffer_row = position_map
775 .snapshot
776 .display_point_to_point(
777 DisplayPoint::new(DisplayRow(display_row), 0),
778 Bias::Right,
779 )
780 .row;
781 let line_offset_from_top = display_row - scroll_position_row as u32;
782 // if double click is made without alt, open the corresponding excerp
783 editor.open_excerpts_common(
784 Some(JumpData::MultiBufferRow {
785 row: MultiBufferRow(multi_buffer_row),
786 line_offset_from_top,
787 }),
788 false,
789 window,
790 cx,
791 );
792 return;
793 }
794 }
795 }
796 }
797
798 if !is_singleton {
799 let display_row = (ScrollPixelOffset::from(
800 (event.position - gutter_hitbox.bounds.origin).y / position_map.line_height,
801 ) + position_map.scroll_position.y) as u32;
802 let multi_buffer_row = position_map
803 .snapshot
804 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
805 .row;
806 if line_numbers
807 .get(&MultiBufferRow(multi_buffer_row))
808 .is_some_and(|line_layout| {
809 line_layout.segments.iter().any(|segment| {
810 segment
811 .hitbox
812 .as_ref()
813 .is_some_and(|hitbox| hitbox.contains(&event.position))
814 })
815 })
816 {
817 let line_offset_from_top = display_row - position_map.scroll_position.y as u32;
818
819 editor.open_excerpts_common(
820 Some(JumpData::MultiBufferRow {
821 row: MultiBufferRow(multi_buffer_row),
822 line_offset_from_top,
823 }),
824 modifiers.alt,
825 window,
826 cx,
827 );
828 cx.stop_propagation();
829 return;
830 }
831 }
832
833 let position = point_for_position.previous_valid;
834 if let Some(mode) = Editor::columnar_selection_mode(&modifiers, cx) {
835 editor.select(
836 SelectPhase::BeginColumnar {
837 position,
838 reset: match mode {
839 ColumnarMode::FromMouse => true,
840 ColumnarMode::FromSelection => false,
841 },
842 mode,
843 goal_column: point_for_position.exact_unclipped.column(),
844 },
845 window,
846 cx,
847 );
848 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
849 {
850 editor.select(
851 SelectPhase::Extend {
852 position,
853 click_count,
854 },
855 window,
856 cx,
857 );
858 } else {
859 editor.select(
860 SelectPhase::Begin {
861 position,
862 add: Editor::is_alt_pressed(&modifiers, cx),
863 click_count,
864 },
865 window,
866 cx,
867 );
868 }
869 cx.stop_propagation();
870 }
871
872 fn mouse_right_down(
873 editor: &mut Editor,
874 event: &MouseDownEvent,
875 position_map: &PositionMap,
876 window: &mut Window,
877 cx: &mut Context<Editor>,
878 ) {
879 if position_map.gutter_hitbox.is_hovered(window) {
880 let gutter_right_padding = editor.gutter_dimensions.right_padding;
881 let hitbox = &position_map.gutter_hitbox;
882
883 if event.position.x <= hitbox.bounds.right() - gutter_right_padding {
884 let point_for_position = position_map.point_for_position(event.position);
885 editor.set_breakpoint_context_menu(
886 point_for_position.previous_valid.row(),
887 None,
888 event.position,
889 window,
890 cx,
891 );
892 }
893 return;
894 }
895
896 if !position_map.text_hitbox.is_hovered(window) {
897 return;
898 }
899
900 let point_for_position = position_map.point_for_position(event.position);
901 mouse_context_menu::deploy_context_menu(
902 editor,
903 Some(event.position),
904 point_for_position.previous_valid,
905 window,
906 cx,
907 );
908 cx.stop_propagation();
909 }
910
911 fn mouse_middle_down(
912 editor: &mut Editor,
913 event: &MouseDownEvent,
914 position_map: &PositionMap,
915 window: &mut Window,
916 cx: &mut Context<Editor>,
917 ) {
918 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
919 return;
920 }
921
922 let point_for_position = position_map.point_for_position(event.position);
923 let position = point_for_position.previous_valid;
924
925 editor.select(
926 SelectPhase::BeginColumnar {
927 position,
928 reset: true,
929 mode: ColumnarMode::FromMouse,
930 goal_column: point_for_position.exact_unclipped.column(),
931 },
932 window,
933 cx,
934 );
935 }
936
937 fn mouse_up(
938 editor: &mut Editor,
939 event: &MouseUpEvent,
940 position_map: &PositionMap,
941 window: &mut Window,
942 cx: &mut Context<Editor>,
943 ) {
944 // Handle diff review drag completion
945 if editor.diff_review_drag_state.is_some() {
946 editor.end_diff_review_drag(window, cx);
947 cx.stop_propagation();
948 return;
949 }
950
951 let text_hitbox = &position_map.text_hitbox;
952 let end_selection = editor.has_pending_selection();
953 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
954 let point_for_position = position_map.point_for_position(event.position);
955
956 match editor.selection_drag_state {
957 SelectionDragState::ReadyToDrag {
958 selection: _,
959 ref click_position,
960 mouse_down_time: _,
961 } => {
962 if event.position == *click_position {
963 editor.select(
964 SelectPhase::Begin {
965 position: point_for_position.previous_valid,
966 add: false,
967 click_count: 1, // ready to drag state only occurs on click count 1
968 },
969 window,
970 cx,
971 );
972 editor.selection_drag_state = SelectionDragState::None;
973 cx.stop_propagation();
974 return;
975 } else {
976 debug_panic!("drag state can never be in ready state after drag")
977 }
978 }
979 SelectionDragState::Dragging { ref selection, .. } => {
980 let snapshot = editor.snapshot(window, cx);
981 let selection_display = selection.map(|anchor| anchor.to_display_point(&snapshot));
982 if !point_for_position.intersects_selection(&selection_display)
983 && text_hitbox.is_hovered(window)
984 {
985 let is_cut = !(cfg!(target_os = "macos") && event.modifiers.alt
986 || cfg!(not(target_os = "macos")) && event.modifiers.control);
987 editor.move_selection_on_drop(
988 &selection.clone(),
989 point_for_position.previous_valid,
990 is_cut,
991 window,
992 cx,
993 );
994 }
995 editor.selection_drag_state = SelectionDragState::None;
996 cx.stop_propagation();
997 cx.notify();
998 return;
999 }
1000 _ => {}
1001 }
1002
1003 if end_selection {
1004 editor.select(SelectPhase::End, window, cx);
1005 }
1006
1007 if end_selection && pending_nonempty_selections {
1008 cx.stop_propagation();
1009 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
1010 && event.button == MouseButton::Middle
1011 {
1012 #[allow(
1013 clippy::collapsible_if,
1014 clippy::needless_return,
1015 reason = "The cfg-block below makes this a false positive"
1016 )]
1017 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
1018 return;
1019 }
1020
1021 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
1022 if EditorSettings::get_global(cx).middle_click_paste {
1023 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
1024 let point_for_position = position_map.point_for_position(event.position);
1025 let position = point_for_position.previous_valid;
1026
1027 editor.select(
1028 SelectPhase::Begin {
1029 position,
1030 add: false,
1031 click_count: 1,
1032 },
1033 window,
1034 cx,
1035 );
1036 editor.insert(&text, window, cx);
1037 }
1038 cx.stop_propagation()
1039 }
1040 }
1041 }
1042
1043 fn click(
1044 editor: &mut Editor,
1045 event: &ClickEvent,
1046 position_map: &PositionMap,
1047 window: &mut Window,
1048 cx: &mut Context<Editor>,
1049 ) {
1050 let text_hitbox = &position_map.text_hitbox;
1051 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
1052
1053 let hovered_link_modifier = Editor::is_cmd_or_ctrl_pressed(&event.modifiers(), cx);
1054 let mouse_down_hovered_link_modifier = if let ClickEvent::Mouse(mouse_event) = event {
1055 Editor::is_cmd_or_ctrl_pressed(&mouse_event.down.modifiers, cx)
1056 } else {
1057 true
1058 };
1059
1060 if let Some(mouse_position) = event.mouse_position()
1061 && !pending_nonempty_selections
1062 && hovered_link_modifier
1063 && mouse_down_hovered_link_modifier
1064 && text_hitbox.is_hovered(window)
1065 && !matches!(
1066 editor.selection_drag_state,
1067 SelectionDragState::Dragging { .. }
1068 )
1069 {
1070 let point = position_map.point_for_position(mouse_position);
1071 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
1072 editor.selection_drag_state = SelectionDragState::None;
1073
1074 cx.stop_propagation();
1075 }
1076 }
1077
1078 fn pressure_click(
1079 editor: &mut Editor,
1080 event: &MousePressureEvent,
1081 position_map: &PositionMap,
1082 window: &mut Window,
1083 cx: &mut Context<Editor>,
1084 ) {
1085 let text_hitbox = &position_map.text_hitbox;
1086 let force_click_possible =
1087 matches!(editor.prev_pressure_stage, Some(PressureStage::Normal))
1088 && event.stage == PressureStage::Force;
1089
1090 editor.prev_pressure_stage = Some(event.stage);
1091
1092 if force_click_possible && text_hitbox.is_hovered(window) {
1093 let point = position_map.point_for_position(event.position);
1094 editor.handle_click_hovered_link(point, event.modifiers, window, cx);
1095 editor.selection_drag_state = SelectionDragState::None;
1096 cx.stop_propagation();
1097 }
1098 }
1099
1100 fn mouse_dragged(
1101 editor: &mut Editor,
1102 event: &MouseMoveEvent,
1103 position_map: &PositionMap,
1104 window: &mut Window,
1105 cx: &mut Context<Editor>,
1106 ) {
1107 if !editor.has_pending_selection()
1108 && matches!(editor.selection_drag_state, SelectionDragState::None)
1109 {
1110 return;
1111 }
1112
1113 let point_for_position = position_map.point_for_position(event.position);
1114 let text_hitbox = &position_map.text_hitbox;
1115
1116 let scroll_delta = {
1117 let text_bounds = text_hitbox.bounds;
1118 let mut scroll_delta = gpui::Point::<f32>::default();
1119 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
1120 let top = text_bounds.origin.y + vertical_margin;
1121 let bottom = text_bounds.bottom_left().y - vertical_margin;
1122 if event.position.y < top {
1123 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
1124 }
1125 if event.position.y > bottom {
1126 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
1127 }
1128
1129 // We need horizontal width of text
1130 let style = editor.style.clone().unwrap_or_default();
1131 let font_id = window.text_system().resolve_font(&style.text.font());
1132 let font_size = style.text.font_size.to_pixels(window.rem_size());
1133 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
1134
1135 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
1136
1137 let scroll_space: Pixels = scroll_margin_x * em_width;
1138
1139 let left = text_bounds.origin.x + scroll_space;
1140 let right = text_bounds.top_right().x - scroll_space;
1141
1142 if event.position.x < left {
1143 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
1144 }
1145 if event.position.x > right {
1146 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
1147 }
1148 scroll_delta
1149 };
1150
1151 if !editor.has_pending_selection() {
1152 let drop_anchor = position_map
1153 .snapshot
1154 .display_point_to_anchor(point_for_position.previous_valid, Bias::Left);
1155 match editor.selection_drag_state {
1156 SelectionDragState::Dragging {
1157 ref mut drop_cursor,
1158 ref mut hide_drop_cursor,
1159 ..
1160 } => {
1161 drop_cursor.start = drop_anchor;
1162 drop_cursor.end = drop_anchor;
1163 *hide_drop_cursor = !text_hitbox.is_hovered(window);
1164 editor.apply_scroll_delta(scroll_delta, window, cx);
1165 cx.notify();
1166 }
1167 SelectionDragState::ReadyToDrag {
1168 ref selection,
1169 ref click_position,
1170 ref mouse_down_time,
1171 } => {
1172 let drag_and_drop_delay = Duration::from_millis(
1173 EditorSettings::get_global(cx)
1174 .drag_and_drop_selection
1175 .delay
1176 .0,
1177 );
1178 if mouse_down_time.elapsed() >= drag_and_drop_delay {
1179 let drop_cursor = Selection {
1180 id: post_inc(&mut editor.selections.next_selection_id()),
1181 start: drop_anchor,
1182 end: drop_anchor,
1183 reversed: false,
1184 goal: SelectionGoal::None,
1185 };
1186 editor.selection_drag_state = SelectionDragState::Dragging {
1187 selection: selection.clone(),
1188 drop_cursor,
1189 hide_drop_cursor: false,
1190 };
1191 editor.apply_scroll_delta(scroll_delta, window, cx);
1192 cx.notify();
1193 } else {
1194 let click_point = position_map.point_for_position(*click_position);
1195 editor.selection_drag_state = SelectionDragState::None;
1196 editor.select(
1197 SelectPhase::Begin {
1198 position: click_point.previous_valid,
1199 add: false,
1200 click_count: 1,
1201 },
1202 window,
1203 cx,
1204 );
1205 editor.select(
1206 SelectPhase::Update {
1207 position: point_for_position.previous_valid,
1208 goal_column: point_for_position.exact_unclipped.column(),
1209 scroll_delta,
1210 },
1211 window,
1212 cx,
1213 );
1214 }
1215 }
1216 _ => {}
1217 }
1218 } else {
1219 editor.select(
1220 SelectPhase::Update {
1221 position: point_for_position.previous_valid,
1222 goal_column: point_for_position.exact_unclipped.column(),
1223 scroll_delta,
1224 },
1225 window,
1226 cx,
1227 );
1228 }
1229 }
1230
1231 pub(crate) fn mouse_moved(
1232 editor: &mut Editor,
1233 event: &MouseMoveEvent,
1234 position_map: &PositionMap,
1235 split_side: Option<SplitSide>,
1236 window: &mut Window,
1237 cx: &mut Context<Editor>,
1238 ) {
1239 let text_hitbox = &position_map.text_hitbox;
1240 let gutter_hitbox = &position_map.gutter_hitbox;
1241 let modifiers = event.modifiers;
1242 let text_hovered = text_hitbox.is_hovered(window);
1243 let gutter_hovered = gutter_hitbox.bounds.contains(&event.position);
1244 editor.set_gutter_hovered(gutter_hovered, cx);
1245 editor.show_mouse_cursor(cx);
1246
1247 let point_for_position = position_map.point_for_position(event.position);
1248 let valid_point = point_for_position.previous_valid;
1249
1250 // Update diff review drag state if we're dragging
1251 if editor.diff_review_drag_state.is_some() {
1252 editor.update_diff_review_drag(valid_point.row(), window, cx);
1253 }
1254
1255 let hovered_diff_control = position_map
1256 .diff_hunk_control_bounds
1257 .iter()
1258 .find(|(_, bounds)| bounds.contains(&event.position))
1259 .map(|(row, _)| *row);
1260
1261 let hovered_diff_hunk_row = if let Some(control_row) = hovered_diff_control {
1262 Some(control_row)
1263 } else if text_hovered {
1264 let current_row = valid_point.row();
1265 position_map.display_hunks.iter().find_map(|(hunk, _)| {
1266 if let DisplayDiffHunk::Unfolded {
1267 display_row_range, ..
1268 } = hunk
1269 {
1270 if display_row_range.contains(¤t_row) {
1271 Some(display_row_range.start)
1272 } else {
1273 None
1274 }
1275 } else {
1276 None
1277 }
1278 })
1279 } else {
1280 None
1281 };
1282
1283 if hovered_diff_hunk_row != editor.hovered_diff_hunk_row {
1284 editor.hovered_diff_hunk_row = hovered_diff_hunk_row;
1285 cx.notify();
1286 }
1287
1288 if let Some((bounds, buffer_id, blame_entry)) = &position_map.inline_blame_bounds {
1289 let mouse_over_inline_blame = bounds.contains(&event.position);
1290 let mouse_over_popover = editor
1291 .inline_blame_popover
1292 .as_ref()
1293 .and_then(|state| state.popover_bounds)
1294 .is_some_and(|bounds| bounds.contains(&event.position));
1295 let keyboard_grace = editor
1296 .inline_blame_popover
1297 .as_ref()
1298 .is_some_and(|state| state.keyboard_grace);
1299
1300 if mouse_over_inline_blame || mouse_over_popover {
1301 editor.show_blame_popover(*buffer_id, blame_entry, event.position, false, cx);
1302 } else if !keyboard_grace {
1303 editor.hide_blame_popover(false, cx);
1304 }
1305 } else {
1306 let keyboard_grace = editor
1307 .inline_blame_popover
1308 .as_ref()
1309 .is_some_and(|state| state.keyboard_grace);
1310 if !keyboard_grace {
1311 editor.hide_blame_popover(false, cx);
1312 }
1313 }
1314
1315 // Handle diff review indicator when gutter is hovered in diff mode with AI enabled
1316 let show_diff_review = editor.show_diff_review_button()
1317 && cx.has_flag::<DiffReviewFeatureFlag>()
1318 && !DisableAiSettings::get_global(cx).disable_ai;
1319
1320 let diff_review_indicator = if gutter_hovered && show_diff_review {
1321 let is_visible = editor
1322 .gutter_diff_review_indicator
1323 .0
1324 .is_some_and(|indicator| indicator.is_active);
1325
1326 if !is_visible {
1327 editor
1328 .gutter_diff_review_indicator
1329 .1
1330 .get_or_insert_with(|| {
1331 cx.spawn(async move |this, cx| {
1332 cx.background_executor()
1333 .timer(Duration::from_millis(200))
1334 .await;
1335
1336 this.update(cx, |this, cx| {
1337 if let Some(indicator) =
1338 this.gutter_diff_review_indicator.0.as_mut()
1339 {
1340 indicator.is_active = true;
1341 cx.notify();
1342 }
1343 })
1344 .ok();
1345 })
1346 });
1347 }
1348
1349 let anchor = position_map
1350 .snapshot
1351 .display_point_to_anchor(valid_point, Bias::Left);
1352 Some(PhantomDiffReviewIndicator {
1353 start: anchor,
1354 end: anchor,
1355 is_active: is_visible,
1356 })
1357 } else {
1358 editor.gutter_diff_review_indicator.1 = None;
1359 None
1360 };
1361
1362 if diff_review_indicator != editor.gutter_diff_review_indicator.0 {
1363 editor.gutter_diff_review_indicator.0 = diff_review_indicator;
1364 cx.notify();
1365 }
1366
1367 // Don't show breakpoint indicator when diff review indicator is active on this row
1368 let is_on_diff_review_button_row = diff_review_indicator.is_some_and(|indicator| {
1369 let start_row = indicator
1370 .start
1371 .to_display_point(&position_map.snapshot.display_snapshot)
1372 .row();
1373 indicator.is_active && start_row == valid_point.row()
1374 });
1375
1376 let breakpoint_indicator = if gutter_hovered
1377 && !is_on_diff_review_button_row
1378 && split_side != Some(SplitSide::Left)
1379 {
1380 let buffer_anchor = position_map
1381 .snapshot
1382 .display_point_to_anchor(valid_point, Bias::Left);
1383
1384 if let Some((buffer_snapshot, file)) = position_map
1385 .snapshot
1386 .buffer_snapshot()
1387 .buffer_for_excerpt(buffer_anchor.excerpt_id)
1388 .and_then(|buffer| buffer.file().map(|file| (buffer, file)))
1389 {
1390 let as_point = text::ToPoint::to_point(&buffer_anchor.text_anchor, buffer_snapshot);
1391
1392 let is_visible = editor
1393 .gutter_breakpoint_indicator
1394 .0
1395 .is_some_and(|indicator| indicator.is_active);
1396
1397 let has_existing_breakpoint =
1398 editor.breakpoint_store.as_ref().is_some_and(|store| {
1399 let Some(project) = &editor.project else {
1400 return false;
1401 };
1402 let Some(abs_path) = project.read(cx).absolute_path(
1403 &ProjectPath {
1404 path: file.path().clone(),
1405 worktree_id: file.worktree_id(cx),
1406 },
1407 cx,
1408 ) else {
1409 return false;
1410 };
1411 store
1412 .read(cx)
1413 .breakpoint_at_row(&abs_path, as_point.row, cx)
1414 .is_some()
1415 });
1416
1417 if !is_visible {
1418 editor.gutter_breakpoint_indicator.1.get_or_insert_with(|| {
1419 cx.spawn(async move |this, cx| {
1420 cx.background_executor()
1421 .timer(Duration::from_millis(200))
1422 .await;
1423
1424 this.update(cx, |this, cx| {
1425 if let Some(indicator) = this.gutter_breakpoint_indicator.0.as_mut()
1426 {
1427 indicator.is_active = true;
1428 cx.notify();
1429 }
1430 })
1431 .ok();
1432 })
1433 });
1434 }
1435
1436 Some(PhantomBreakpointIndicator {
1437 display_row: valid_point.row(),
1438 is_active: is_visible,
1439 collides_with_existing_breakpoint: has_existing_breakpoint,
1440 })
1441 } else {
1442 editor.gutter_breakpoint_indicator.1 = None;
1443 None
1444 }
1445 } else {
1446 editor.gutter_breakpoint_indicator.1 = None;
1447 None
1448 };
1449
1450 if &breakpoint_indicator != &editor.gutter_breakpoint_indicator.0 {
1451 editor.gutter_breakpoint_indicator.0 = breakpoint_indicator;
1452 cx.notify();
1453 }
1454
1455 // Don't trigger hover popover if mouse is hovering over context menu
1456 if text_hovered {
1457 editor.update_hovered_link(
1458 point_for_position,
1459 &position_map.snapshot,
1460 modifiers,
1461 window,
1462 cx,
1463 );
1464
1465 if let Some(point) = point_for_position.as_valid() {
1466 let anchor = position_map
1467 .snapshot
1468 .buffer_snapshot()
1469 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
1470 hover_at(editor, Some(anchor), window, cx);
1471 Self::update_visible_cursor(editor, point, position_map, window, cx);
1472 } else {
1473 editor.update_inlay_link_and_hover_points(
1474 &position_map.snapshot,
1475 point_for_position,
1476 modifiers.secondary(),
1477 modifiers.shift,
1478 window,
1479 cx,
1480 );
1481 }
1482 } else {
1483 editor.hide_hovered_link(cx);
1484 hover_at(editor, None, window, cx);
1485 }
1486 }
1487
1488 fn update_visible_cursor(
1489 editor: &mut Editor,
1490 point: DisplayPoint,
1491 position_map: &PositionMap,
1492 window: &mut Window,
1493 cx: &mut Context<Editor>,
1494 ) {
1495 let snapshot = &position_map.snapshot;
1496 let Some(hub) = editor.collaboration_hub() else {
1497 return;
1498 };
1499 let start = snapshot.display_snapshot.clip_point(
1500 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
1501 Bias::Left,
1502 );
1503 let end = snapshot.display_snapshot.clip_point(
1504 DisplayPoint::new(
1505 point.row(),
1506 (point.column() + 1).min(snapshot.line_len(point.row())),
1507 ),
1508 Bias::Right,
1509 );
1510
1511 let range = snapshot
1512 .buffer_snapshot()
1513 .anchor_before(start.to_point(&snapshot.display_snapshot))
1514 ..snapshot
1515 .buffer_snapshot()
1516 .anchor_after(end.to_point(&snapshot.display_snapshot));
1517
1518 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
1519 return;
1520 };
1521 let key = crate::HoveredCursor {
1522 replica_id: selection.replica_id,
1523 selection_id: selection.selection.id,
1524 };
1525 editor.hovered_cursors.insert(
1526 key.clone(),
1527 cx.spawn_in(window, async move |editor, cx| {
1528 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
1529 editor
1530 .update(cx, |editor, cx| {
1531 editor.hovered_cursors.remove(&key);
1532 cx.notify();
1533 })
1534 .ok();
1535 }),
1536 );
1537 cx.notify()
1538 }
1539
1540 fn layout_selections(
1541 &self,
1542 start_anchor: Anchor,
1543 end_anchor: Anchor,
1544 local_selections: &[Selection<Point>],
1545 snapshot: &EditorSnapshot,
1546 start_row: DisplayRow,
1547 end_row: DisplayRow,
1548 window: &mut Window,
1549 cx: &mut App,
1550 ) -> (
1551 Vec<(PlayerColor, Vec<SelectionLayout>)>,
1552 BTreeMap<DisplayRow, LineHighlightSpec>,
1553 Option<DisplayPoint>,
1554 ) {
1555 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1556 let mut active_rows = BTreeMap::new();
1557 let mut newest_selection_head = None;
1558
1559 let Some(editor_with_selections) = self.editor_with_selections(cx) else {
1560 return (selections, active_rows, newest_selection_head);
1561 };
1562
1563 editor_with_selections.update(cx, |editor, cx| {
1564 if editor.show_local_selections {
1565 let mut layouts = Vec::new();
1566 let newest = editor.selections.newest(&editor.display_snapshot(cx));
1567 for selection in local_selections.iter().cloned() {
1568 let is_empty = selection.start == selection.end;
1569 let is_newest = selection == newest;
1570
1571 let layout = SelectionLayout::new(
1572 selection,
1573 editor.selections.line_mode(),
1574 editor.cursor_offset_on_selection,
1575 editor.cursor_shape,
1576 &snapshot.display_snapshot,
1577 is_newest,
1578 editor.leader_id.is_none(),
1579 None,
1580 );
1581 if is_newest {
1582 newest_selection_head = Some(layout.head);
1583 }
1584
1585 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1586 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1587 {
1588 let contains_non_empty_selection = active_rows
1589 .entry(DisplayRow(row))
1590 .or_insert_with(LineHighlightSpec::default);
1591 contains_non_empty_selection.selection |= !is_empty;
1592 }
1593 layouts.push(layout);
1594 }
1595
1596 let mut player = editor.current_user_player_color(cx);
1597 if !editor.is_focused(window) {
1598 const UNFOCUS_EDITOR_SELECTION_OPACITY: f32 = 0.5;
1599 player.selection = player.selection.opacity(UNFOCUS_EDITOR_SELECTION_OPACITY);
1600 }
1601 selections.push((player, layouts));
1602
1603 if let SelectionDragState::Dragging {
1604 ref selection,
1605 ref drop_cursor,
1606 ref hide_drop_cursor,
1607 } = editor.selection_drag_state
1608 && !hide_drop_cursor
1609 && (drop_cursor
1610 .start
1611 .cmp(&selection.start, &snapshot.buffer_snapshot())
1612 .eq(&Ordering::Less)
1613 || drop_cursor
1614 .end
1615 .cmp(&selection.end, &snapshot.buffer_snapshot())
1616 .eq(&Ordering::Greater))
1617 {
1618 let drag_cursor_layout = SelectionLayout::new(
1619 drop_cursor.clone(),
1620 false,
1621 editor.cursor_offset_on_selection,
1622 CursorShape::Bar,
1623 &snapshot.display_snapshot,
1624 false,
1625 false,
1626 None,
1627 );
1628 let absent_color = cx.theme().players().absent();
1629 selections.push((absent_color, vec![drag_cursor_layout]));
1630 }
1631 }
1632
1633 if let Some(collaboration_hub) = &editor.collaboration_hub {
1634 // When following someone, render the local selections in their color.
1635 if let Some(leader_id) = editor.leader_id {
1636 match leader_id {
1637 CollaboratorId::PeerId(peer_id) => {
1638 if let Some(collaborator) =
1639 collaboration_hub.collaborators(cx).get(&peer_id)
1640 && let Some(participant_index) = collaboration_hub
1641 .user_participant_indices(cx)
1642 .get(&collaborator.user_id)
1643 && let Some((local_selection_style, _)) = selections.first_mut()
1644 {
1645 *local_selection_style = cx
1646 .theme()
1647 .players()
1648 .color_for_participant(participant_index.0);
1649 }
1650 }
1651 CollaboratorId::Agent => {
1652 if let Some((local_selection_style, _)) = selections.first_mut() {
1653 *local_selection_style = cx.theme().players().agent();
1654 }
1655 }
1656 }
1657 }
1658
1659 let mut remote_selections = HashMap::default();
1660 for selection in snapshot.remote_selections_in_range(
1661 &(start_anchor..end_anchor),
1662 collaboration_hub.as_ref(),
1663 cx,
1664 ) {
1665 // Don't re-render the leader's selections, since the local selections
1666 // match theirs.
1667 if Some(selection.collaborator_id) == editor.leader_id {
1668 continue;
1669 }
1670 let key = HoveredCursor {
1671 replica_id: selection.replica_id,
1672 selection_id: selection.selection.id,
1673 };
1674
1675 let is_shown =
1676 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1677
1678 remote_selections
1679 .entry(selection.replica_id)
1680 .or_insert((selection.color, Vec::new()))
1681 .1
1682 .push(SelectionLayout::new(
1683 selection.selection,
1684 selection.line_mode,
1685 editor.cursor_offset_on_selection,
1686 selection.cursor_shape,
1687 &snapshot.display_snapshot,
1688 false,
1689 false,
1690 if is_shown { selection.user_name } else { None },
1691 ));
1692 }
1693
1694 selections.extend(remote_selections.into_values());
1695 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1696 let cursor_offset_on_selection = editor.cursor_offset_on_selection;
1697
1698 let layouts = snapshot
1699 .buffer_snapshot()
1700 .selections_in_range(&(start_anchor..end_anchor), true)
1701 .map(move |(_, line_mode, cursor_shape, selection)| {
1702 SelectionLayout::new(
1703 selection,
1704 line_mode,
1705 cursor_offset_on_selection,
1706 cursor_shape,
1707 &snapshot.display_snapshot,
1708 false,
1709 false,
1710 None,
1711 )
1712 })
1713 .collect::<Vec<_>>();
1714 let player = editor.current_user_player_color(cx);
1715 selections.push((player, layouts));
1716 }
1717 });
1718
1719 #[cfg(debug_assertions)]
1720 Self::layout_debug_ranges(
1721 &mut selections,
1722 start_anchor..end_anchor,
1723 &snapshot.display_snapshot,
1724 cx,
1725 );
1726
1727 (selections, active_rows, newest_selection_head)
1728 }
1729
1730 fn collect_cursors(
1731 &self,
1732 snapshot: &EditorSnapshot,
1733 cx: &mut App,
1734 ) -> Vec<(DisplayPoint, Hsla)> {
1735 let editor = self.editor.read(cx);
1736 let mut cursors = Vec::new();
1737 let mut skip_local = false;
1738 let mut add_cursor = |anchor: Anchor, color| {
1739 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1740 };
1741 // Remote cursors
1742 if let Some(collaboration_hub) = &editor.collaboration_hub {
1743 for remote_selection in snapshot.remote_selections_in_range(
1744 &(Anchor::min()..Anchor::max()),
1745 collaboration_hub.deref(),
1746 cx,
1747 ) {
1748 add_cursor(
1749 remote_selection.selection.head(),
1750 remote_selection.color.cursor,
1751 );
1752 if Some(remote_selection.collaborator_id) == editor.leader_id {
1753 skip_local = true;
1754 }
1755 }
1756 }
1757 // Local cursors
1758 if !skip_local {
1759 let color = cx.theme().players().local().cursor;
1760 editor
1761 .selections
1762 .disjoint_anchors()
1763 .iter()
1764 .for_each(|selection| {
1765 add_cursor(selection.head(), color);
1766 });
1767 if let Some(ref selection) = editor.selections.pending_anchor() {
1768 add_cursor(selection.head(), color);
1769 }
1770 }
1771 cursors
1772 }
1773
1774 fn layout_visible_cursors(
1775 &self,
1776 snapshot: &EditorSnapshot,
1777 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1778 row_block_types: &HashMap<DisplayRow, bool>,
1779 visible_display_row_range: Range<DisplayRow>,
1780 line_layouts: &[LineWithInvisibles],
1781 text_hitbox: &Hitbox,
1782 content_origin: gpui::Point<Pixels>,
1783 scroll_position: gpui::Point<ScrollOffset>,
1784 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
1785 line_height: Pixels,
1786 em_width: Pixels,
1787 em_advance: Pixels,
1788 autoscroll_containing_element: bool,
1789 redacted_ranges: &[Range<DisplayPoint>],
1790 window: &mut Window,
1791 cx: &mut App,
1792 ) -> Vec<CursorLayout> {
1793 let mut autoscroll_bounds = None;
1794 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1795 let mut cursors = Vec::new();
1796
1797 let show_local_cursors = editor.show_local_cursors(window, cx);
1798
1799 for (player_color, selections) in selections {
1800 for selection in selections {
1801 let cursor_position = selection.head;
1802
1803 let in_range = visible_display_row_range.contains(&cursor_position.row());
1804 if (selection.is_local && !show_local_cursors)
1805 || !in_range
1806 || row_block_types.get(&cursor_position.row()) == Some(&true)
1807 {
1808 continue;
1809 }
1810
1811 let cursor_row_layout = &line_layouts
1812 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1813 let cursor_column = cursor_position.column() as usize;
1814
1815 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column)
1816 + cursor_row_layout
1817 .alignment_offset(self.style.text.text_align, text_hitbox.size.width);
1818 let cursor_next_x = cursor_row_layout.x_for_index(cursor_column + 1)
1819 + cursor_row_layout
1820 .alignment_offset(self.style.text.text_align, text_hitbox.size.width);
1821 let mut cell_width = cursor_next_x - cursor_character_x;
1822 if cell_width == Pixels::ZERO {
1823 cell_width = em_advance;
1824 }
1825
1826 let mut block_width = cell_width;
1827 let mut block_text = None;
1828
1829 let is_cursor_in_redacted_range = redacted_ranges
1830 .iter()
1831 .any(|range| range.start <= cursor_position && cursor_position < range.end);
1832
1833 if selection.cursor_shape == CursorShape::Block && !is_cursor_in_redacted_range
1834 {
1835 if let Some(text) = snapshot.grapheme_at(cursor_position).or_else(|| {
1836 if snapshot.is_empty() {
1837 snapshot.placeholder_text().and_then(|s| {
1838 s.graphemes(true).next().map(|s| s.to_string().into())
1839 })
1840 } else {
1841 None
1842 }
1843 }) {
1844 let is_ascii_whitespace_only =
1845 text.as_ref().chars().all(|c| c.is_ascii_whitespace());
1846 let len = text.len();
1847
1848 let mut font = cursor_row_layout
1849 .font_id_for_index(cursor_column)
1850 .and_then(|cursor_font_id| {
1851 window.text_system().get_font_for_id(cursor_font_id)
1852 })
1853 .unwrap_or(self.style.text.font());
1854 font.features = self.style.text.font_features.clone();
1855
1856 // Invert the text color for the block cursor. Ensure that the text
1857 // color is opaque enough to be visible against the background color.
1858 //
1859 // 0.75 is an arbitrary threshold to determine if the background color is
1860 // opaque enough to use as a text color.
1861 //
1862 // TODO: In the future we should ensure themes have a `text_inverse` color.
1863 let color = if cx.theme().colors().editor_background.a < 0.75 {
1864 match cx.theme().appearance {
1865 Appearance::Dark => Hsla::black(),
1866 Appearance::Light => Hsla::white(),
1867 }
1868 } else {
1869 cx.theme().colors().editor_background
1870 };
1871
1872 let shaped = window.text_system().shape_line(
1873 text,
1874 cursor_row_layout.font_size,
1875 &[TextRun {
1876 len,
1877 font,
1878 color,
1879 ..Default::default()
1880 }],
1881 None,
1882 );
1883 if !is_ascii_whitespace_only {
1884 block_width = block_width.max(shaped.width);
1885 }
1886 block_text = Some(shaped);
1887 }
1888 }
1889
1890 let x = cursor_character_x - scroll_pixel_position.x.into();
1891 let y = ((cursor_position.row().as_f64() - scroll_position.y)
1892 * ScrollPixelOffset::from(line_height))
1893 .into();
1894 if selection.is_newest {
1895 editor.pixel_position_of_newest_cursor = Some(point(
1896 text_hitbox.origin.x + x + block_width / 2.,
1897 text_hitbox.origin.y + y + line_height / 2.,
1898 ));
1899
1900 if autoscroll_containing_element {
1901 let top = text_hitbox.origin.y
1902 + ((cursor_position.row().as_f64() - scroll_position.y - 3.)
1903 .max(0.)
1904 * ScrollPixelOffset::from(line_height))
1905 .into();
1906 let left = text_hitbox.origin.x
1907 + ((cursor_position.column() as ScrollOffset
1908 - scroll_position.x
1909 - 3.)
1910 .max(0.)
1911 * ScrollPixelOffset::from(em_width))
1912 .into();
1913
1914 let bottom = text_hitbox.origin.y
1915 + ((cursor_position.row().as_f64() - scroll_position.y + 4.)
1916 * ScrollPixelOffset::from(line_height))
1917 .into();
1918 let right = text_hitbox.origin.x
1919 + ((cursor_position.column() as ScrollOffset - scroll_position.x
1920 + 4.)
1921 * ScrollPixelOffset::from(em_width))
1922 .into();
1923
1924 autoscroll_bounds =
1925 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1926 }
1927 }
1928
1929 let mut cursor = CursorLayout {
1930 color: player_color.cursor,
1931 block_width,
1932 origin: point(x, y),
1933 line_height,
1934 shape: selection.cursor_shape,
1935 block_text,
1936 cursor_name: None,
1937 };
1938 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1939 string: name,
1940 color: self.style.background,
1941 is_top_row: cursor_position.row().0 == 0,
1942 });
1943 cursor.layout(content_origin, cursor_name, window, cx);
1944 cursors.push(cursor);
1945 }
1946 }
1947
1948 cursors
1949 });
1950
1951 if let Some(bounds) = autoscroll_bounds {
1952 window.request_autoscroll(bounds);
1953 }
1954
1955 cursor_layouts
1956 }
1957
1958 fn layout_scrollbars(
1959 &self,
1960 snapshot: &EditorSnapshot,
1961 scrollbar_layout_information: &ScrollbarLayoutInformation,
1962 content_offset: gpui::Point<Pixels>,
1963 scroll_position: gpui::Point<ScrollOffset>,
1964 non_visible_cursors: bool,
1965 right_margin: Pixels,
1966 editor_width: Pixels,
1967 window: &mut Window,
1968 cx: &mut App,
1969 ) -> Option<EditorScrollbars> {
1970 let show_scrollbars = self.editor.read(cx).show_scrollbars;
1971 if (!show_scrollbars.horizontal && !show_scrollbars.vertical)
1972 || self.style.scrollbar_width.is_zero()
1973 {
1974 return None;
1975 }
1976
1977 // If a drag took place after we started dragging the scrollbar,
1978 // cancel the scrollbar drag.
1979 if cx.has_active_drag() {
1980 self.editor.update(cx, |editor, cx| {
1981 editor.scroll_manager.reset_scrollbar_state(cx)
1982 });
1983 }
1984
1985 let editor_settings = EditorSettings::get_global(cx);
1986 let scrollbar_settings = editor_settings.scrollbar;
1987 let show_scrollbars = match scrollbar_settings.show {
1988 ShowScrollbar::Auto => {
1989 let editor = self.editor.read(cx);
1990 let is_singleton = editor.buffer_kind(cx) == ItemBufferKind::Singleton;
1991 // Git
1992 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot().has_diff_hunks())
1993 ||
1994 // Buffer Search Results
1995 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights(HighlightKey::BufferSearchHighlights))
1996 ||
1997 // Selected Text Occurrences
1998 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights(HighlightKey::SelectedTextHighlight))
1999 ||
2000 // Selected Symbol Occurrences
2001 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights(HighlightKey::DocumentHighlightRead) || editor.has_background_highlights(HighlightKey::DocumentHighlightWrite)))
2002 ||
2003 // Diagnostics
2004 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot().has_diagnostics())
2005 ||
2006 // Cursors out of sight
2007 non_visible_cursors
2008 ||
2009 // Scrollmanager
2010 editor.scroll_manager.scrollbars_visible()
2011 }
2012 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
2013 ShowScrollbar::Always => true,
2014 ShowScrollbar::Never => return None,
2015 };
2016
2017 // The horizontal scrollbar is usually slightly offset to align nicely with
2018 // indent guides. However, this offset is not needed if indent guides are
2019 // disabled for the current editor.
2020 let content_offset = self
2021 .editor
2022 .read(cx)
2023 .show_indent_guides
2024 .is_none_or(|should_show| should_show)
2025 .then_some(content_offset)
2026 .unwrap_or_default();
2027
2028 Some(EditorScrollbars::from_scrollbar_axes(
2029 ScrollbarAxes {
2030 horizontal: scrollbar_settings.axes.horizontal
2031 && self.editor.read(cx).show_scrollbars.horizontal,
2032 vertical: scrollbar_settings.axes.vertical
2033 && self.editor.read(cx).show_scrollbars.vertical,
2034 },
2035 scrollbar_layout_information,
2036 content_offset,
2037 scroll_position,
2038 self.style.scrollbar_width,
2039 right_margin,
2040 editor_width,
2041 show_scrollbars,
2042 self.editor.read(cx).scroll_manager.active_scrollbar_state(),
2043 window,
2044 ))
2045 }
2046
2047 fn layout_minimap(
2048 &self,
2049 snapshot: &EditorSnapshot,
2050 minimap_width: Pixels,
2051 scroll_position: gpui::Point<f64>,
2052 scrollbar_layout_information: &ScrollbarLayoutInformation,
2053 scrollbar_layout: Option<&EditorScrollbars>,
2054 window: &mut Window,
2055 cx: &mut App,
2056 ) -> Option<MinimapLayout> {
2057 let minimap_editor = self.editor.read(cx).minimap().cloned()?;
2058
2059 let minimap_settings = EditorSettings::get_global(cx).minimap;
2060
2061 if minimap_settings.on_active_editor() {
2062 let active_editor = self.editor.read(cx).workspace().and_then(|ws| {
2063 ws.read(cx)
2064 .active_pane()
2065 .read(cx)
2066 .active_item()
2067 .and_then(|i| i.act_as::<Editor>(cx))
2068 });
2069 if active_editor.is_some_and(|e| e != self.editor) {
2070 return None;
2071 }
2072 }
2073
2074 if !snapshot.mode.is_full()
2075 || minimap_width.is_zero()
2076 || matches!(
2077 minimap_settings.show,
2078 ShowMinimap::Auto if scrollbar_layout.is_none_or(|layout| !layout.visible)
2079 )
2080 {
2081 return None;
2082 }
2083
2084 const MINIMAP_AXIS: ScrollbarAxis = ScrollbarAxis::Vertical;
2085
2086 let ScrollbarLayoutInformation {
2087 editor_bounds,
2088 scroll_range,
2089 glyph_grid_cell,
2090 } = scrollbar_layout_information;
2091
2092 let line_height = glyph_grid_cell.height;
2093 let scroll_position = scroll_position.along(MINIMAP_AXIS);
2094
2095 let top_right_anchor = scrollbar_layout
2096 .and_then(|layout| layout.vertical.as_ref())
2097 .map(|vertical_scrollbar| vertical_scrollbar.hitbox.origin)
2098 .unwrap_or_else(|| editor_bounds.top_right());
2099
2100 let thumb_state = self
2101 .editor
2102 .read_with(cx, |editor, _| editor.scroll_manager.minimap_thumb_state());
2103
2104 let show_thumb = match minimap_settings.thumb {
2105 MinimapThumb::Always => true,
2106 MinimapThumb::Hover => thumb_state.is_some(),
2107 };
2108
2109 let minimap_bounds = Bounds::from_corner_and_size(
2110 Corner::TopRight,
2111 top_right_anchor,
2112 size(minimap_width, editor_bounds.size.height),
2113 );
2114 let minimap_line_height = self.get_minimap_line_height(
2115 minimap_editor
2116 .read(cx)
2117 .text_style_refinement
2118 .as_ref()
2119 .and_then(|refinement| refinement.font_size)
2120 .unwrap_or(MINIMAP_FONT_SIZE),
2121 window,
2122 cx,
2123 );
2124 let minimap_height = minimap_bounds.size.height;
2125
2126 let visible_editor_lines = (editor_bounds.size.height / line_height) as f64;
2127 let total_editor_lines = (scroll_range.height / line_height) as f64;
2128 let minimap_lines = (minimap_height / minimap_line_height) as f64;
2129
2130 let minimap_scroll_top = MinimapLayout::calculate_minimap_top_offset(
2131 total_editor_lines,
2132 visible_editor_lines,
2133 minimap_lines,
2134 scroll_position,
2135 );
2136
2137 let layout = ScrollbarLayout::for_minimap(
2138 window.insert_hitbox(minimap_bounds, HitboxBehavior::Normal),
2139 visible_editor_lines,
2140 total_editor_lines,
2141 minimap_line_height,
2142 scroll_position,
2143 minimap_scroll_top,
2144 show_thumb,
2145 )
2146 .with_thumb_state(thumb_state);
2147
2148 minimap_editor.update(cx, |editor, cx| {
2149 editor.set_scroll_position(point(0., minimap_scroll_top), window, cx)
2150 });
2151
2152 // Required for the drop shadow to be visible
2153 const PADDING_OFFSET: Pixels = px(4.);
2154
2155 let mut minimap = div()
2156 .size_full()
2157 .shadow_xs()
2158 .px(PADDING_OFFSET)
2159 .child(minimap_editor)
2160 .into_any_element();
2161
2162 let extended_bounds = minimap_bounds.extend(Edges {
2163 right: PADDING_OFFSET,
2164 left: PADDING_OFFSET,
2165 ..Default::default()
2166 });
2167 minimap.layout_as_root(extended_bounds.size.into(), window, cx);
2168 window.with_absolute_element_offset(extended_bounds.origin, |window| {
2169 minimap.prepaint(window, cx)
2170 });
2171
2172 Some(MinimapLayout {
2173 minimap,
2174 thumb_layout: layout,
2175 thumb_border_style: minimap_settings.thumb_border,
2176 minimap_line_height,
2177 minimap_scroll_top,
2178 max_scroll_top: total_editor_lines,
2179 })
2180 }
2181
2182 fn get_minimap_line_height(
2183 &self,
2184 font_size: AbsoluteLength,
2185 window: &mut Window,
2186 cx: &mut App,
2187 ) -> Pixels {
2188 let rem_size = self.rem_size(cx).unwrap_or(window.rem_size());
2189 let mut text_style = self.style.text.clone();
2190 text_style.font_size = font_size;
2191 text_style.line_height_in_pixels(rem_size)
2192 }
2193
2194 fn get_minimap_width(
2195 &self,
2196 minimap_settings: &Minimap,
2197 scrollbars_shown: bool,
2198 text_width: Pixels,
2199 em_width: Pixels,
2200 font_size: Pixels,
2201 rem_size: Pixels,
2202 cx: &App,
2203 ) -> Option<Pixels> {
2204 if minimap_settings.show == ShowMinimap::Auto && !scrollbars_shown {
2205 return None;
2206 }
2207
2208 let minimap_font_size = self.editor.read_with(cx, |editor, cx| {
2209 editor.minimap().map(|minimap_editor| {
2210 minimap_editor
2211 .read(cx)
2212 .text_style_refinement
2213 .as_ref()
2214 .and_then(|refinement| refinement.font_size)
2215 .unwrap_or(MINIMAP_FONT_SIZE)
2216 })
2217 })?;
2218
2219 let minimap_em_width = em_width * (minimap_font_size.to_pixels(rem_size) / font_size);
2220
2221 let minimap_width = (text_width * MinimapLayout::MINIMAP_WIDTH_PCT)
2222 .min(minimap_em_width * minimap_settings.max_width_columns.get() as f32);
2223
2224 (minimap_width >= minimap_em_width * MinimapLayout::MINIMAP_MIN_WIDTH_COLUMNS)
2225 .then_some(minimap_width)
2226 }
2227
2228 fn prepaint_crease_toggles(
2229 &self,
2230 crease_toggles: &mut [Option<AnyElement>],
2231 line_height: Pixels,
2232 gutter_dimensions: &GutterDimensions,
2233 gutter_settings: crate::editor_settings::Gutter,
2234 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2235 gutter_hitbox: &Hitbox,
2236 window: &mut Window,
2237 cx: &mut App,
2238 ) {
2239 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
2240 if let Some(crease_toggle) = crease_toggle {
2241 debug_assert!(gutter_settings.folds);
2242 let available_space = size(
2243 AvailableSpace::MinContent,
2244 AvailableSpace::Definite(line_height * 0.55),
2245 );
2246 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
2247
2248 let position = point(
2249 gutter_dimensions.width - gutter_dimensions.right_padding,
2250 ix as f32 * line_height
2251 - (scroll_pixel_position.y % ScrollPixelOffset::from(line_height)).into(),
2252 );
2253 let centering_offset = point(
2254 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
2255 (line_height - crease_toggle_size.height) / 2.,
2256 );
2257 let origin = gutter_hitbox.origin + position + centering_offset;
2258 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
2259 }
2260 }
2261 }
2262
2263 fn prepaint_expand_toggles(
2264 &self,
2265 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
2266 window: &mut Window,
2267 cx: &mut App,
2268 ) {
2269 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
2270 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
2271 expand_toggle.layout_as_root(available_space, window, cx);
2272 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
2273 }
2274 }
2275
2276 fn prepaint_crease_trailers(
2277 &self,
2278 trailers: Vec<Option<AnyElement>>,
2279 lines: &[LineWithInvisibles],
2280 line_height: Pixels,
2281 content_origin: gpui::Point<Pixels>,
2282 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2283 em_width: Pixels,
2284 window: &mut Window,
2285 cx: &mut App,
2286 ) -> Vec<Option<CreaseTrailerLayout>> {
2287 trailers
2288 .into_iter()
2289 .enumerate()
2290 .map(|(ix, element)| {
2291 let mut element = element?;
2292 let available_space = size(
2293 AvailableSpace::MinContent,
2294 AvailableSpace::Definite(line_height),
2295 );
2296 let size = element.layout_as_root(available_space, window, cx);
2297
2298 let line = &lines[ix];
2299 let padding = if line.width == Pixels::ZERO {
2300 Pixels::ZERO
2301 } else {
2302 4. * em_width
2303 };
2304 let position = point(
2305 Pixels::from(scroll_pixel_position.x) + line.width + padding,
2306 ix as f32 * line_height
2307 - (scroll_pixel_position.y % ScrollPixelOffset::from(line_height)).into(),
2308 );
2309 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
2310 let origin = content_origin + position + centering_offset;
2311 element.prepaint_as_root(origin, available_space, window, cx);
2312 Some(CreaseTrailerLayout {
2313 element,
2314 bounds: Bounds::new(origin, size),
2315 })
2316 })
2317 .collect()
2318 }
2319
2320 // Folds contained in a hunk are ignored apart from shrinking visual size
2321 // If a fold contains any hunks then that fold line is marked as modified
2322 fn layout_gutter_diff_hunks(
2323 &self,
2324 line_height: Pixels,
2325 gutter_hitbox: &Hitbox,
2326 display_rows: Range<DisplayRow>,
2327 snapshot: &EditorSnapshot,
2328 window: &mut Window,
2329 cx: &mut App,
2330 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
2331 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
2332 let mut display_hunks = snapshot
2333 .display_diff_hunks_for_rows(display_rows, folded_buffers)
2334 .map(|hunk| (hunk, None))
2335 .collect::<Vec<_>>();
2336 let git_gutter_setting = ProjectSettings::get_global(cx).git.git_gutter;
2337 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
2338 for (hunk, hitbox) in &mut display_hunks {
2339 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
2340 let hunk_bounds =
2341 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
2342 *hitbox = Some(window.insert_hitbox(hunk_bounds, HitboxBehavior::BlockMouse));
2343 }
2344 }
2345 }
2346
2347 display_hunks
2348 }
2349
2350 fn layout_inline_diagnostics(
2351 &self,
2352 line_layouts: &[LineWithInvisibles],
2353 crease_trailers: &[Option<CreaseTrailerLayout>],
2354 row_block_types: &HashMap<DisplayRow, bool>,
2355 content_origin: gpui::Point<Pixels>,
2356 scroll_position: gpui::Point<ScrollOffset>,
2357 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2358 edit_prediction_popover_origin: Option<gpui::Point<Pixels>>,
2359 start_row: DisplayRow,
2360 end_row: DisplayRow,
2361 line_height: Pixels,
2362 em_width: Pixels,
2363 style: &EditorStyle,
2364 window: &mut Window,
2365 cx: &mut App,
2366 ) -> HashMap<DisplayRow, AnyElement> {
2367 let max_severity = match self
2368 .editor
2369 .read(cx)
2370 .inline_diagnostics_enabled()
2371 .then(|| {
2372 ProjectSettings::get_global(cx)
2373 .diagnostics
2374 .inline
2375 .max_severity
2376 .unwrap_or_else(|| self.editor.read(cx).diagnostics_max_severity)
2377 .into_lsp()
2378 })
2379 .flatten()
2380 {
2381 Some(max_severity) => max_severity,
2382 None => return HashMap::default(),
2383 };
2384
2385 let active_diagnostics_group =
2386 if let ActiveDiagnostic::Group(group) = &self.editor.read(cx).active_diagnostics {
2387 Some(group.group_id)
2388 } else {
2389 None
2390 };
2391
2392 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
2393 let snapshot = editor.snapshot(window, cx);
2394 editor
2395 .inline_diagnostics
2396 .iter()
2397 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
2398 .filter(|(_, diagnostic)| match active_diagnostics_group {
2399 Some(active_diagnostics_group) => {
2400 // Active diagnostics are all shown in the editor already, no need to display them inline
2401 diagnostic.group_id != active_diagnostics_group
2402 }
2403 None => true,
2404 })
2405 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
2406 .skip_while(|(point, _)| point.row() < start_row)
2407 .take_while(|(point, _)| point.row() < end_row)
2408 .filter(|(point, _)| !row_block_types.contains_key(&point.row()))
2409 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
2410 acc.entry(point.row())
2411 .or_insert_with(Vec::new)
2412 .push(diagnostic);
2413 acc
2414 })
2415 });
2416
2417 if diagnostics_by_rows.is_empty() {
2418 return HashMap::default();
2419 }
2420
2421 let severity_to_color = |sev: &lsp::DiagnosticSeverity| match sev {
2422 &lsp::DiagnosticSeverity::ERROR => Color::Error,
2423 &lsp::DiagnosticSeverity::WARNING => Color::Warning,
2424 &lsp::DiagnosticSeverity::INFORMATION => Color::Info,
2425 &lsp::DiagnosticSeverity::HINT => Color::Hint,
2426 _ => Color::Error,
2427 };
2428
2429 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
2430 let min_x = column_pixels(
2431 &self.style,
2432 ProjectSettings::get_global(cx)
2433 .diagnostics
2434 .inline
2435 .min_column as usize,
2436 window,
2437 );
2438
2439 let mut elements = HashMap::default();
2440 for (row, mut diagnostics) in diagnostics_by_rows {
2441 diagnostics.sort_by_key(|diagnostic| {
2442 (
2443 diagnostic.severity,
2444 std::cmp::Reverse(diagnostic.is_primary),
2445 diagnostic.start.row,
2446 diagnostic.start.column,
2447 )
2448 });
2449
2450 let Some(diagnostic_to_render) = diagnostics
2451 .iter()
2452 .find(|diagnostic| diagnostic.is_primary)
2453 .or_else(|| diagnostics.first())
2454 else {
2455 continue;
2456 };
2457
2458 let pos_y = content_origin.y + line_height * (row.0 as f64 - scroll_position.y) as f32;
2459
2460 let window_ix = row.0.saturating_sub(start_row.0) as usize;
2461 let pos_x = {
2462 let crease_trailer_layout = &crease_trailers[window_ix];
2463 let line_layout = &line_layouts[window_ix];
2464
2465 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
2466 crease_trailer.bounds.right()
2467 } else {
2468 Pixels::from(
2469 ScrollPixelOffset::from(content_origin.x + line_layout.width)
2470 - scroll_pixel_position.x,
2471 )
2472 };
2473
2474 let padded_line = line_end + padding;
2475 let min_start = Pixels::from(
2476 ScrollPixelOffset::from(content_origin.x + min_x) - scroll_pixel_position.x,
2477 );
2478
2479 cmp::max(padded_line, min_start)
2480 };
2481
2482 let behind_edit_prediction_popover = edit_prediction_popover_origin
2483 .as_ref()
2484 .is_some_and(|edit_prediction_popover_origin| {
2485 (pos_y..pos_y + line_height).contains(&edit_prediction_popover_origin.y)
2486 });
2487 let opacity = if behind_edit_prediction_popover {
2488 0.5
2489 } else {
2490 1.0
2491 };
2492
2493 let mut element = h_flex()
2494 .id(("diagnostic", row.0))
2495 .h(line_height)
2496 .w_full()
2497 .px_1()
2498 .rounded_xs()
2499 .opacity(opacity)
2500 .bg(severity_to_color(&diagnostic_to_render.severity)
2501 .color(cx)
2502 .opacity(0.05))
2503 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
2504 .text_sm()
2505 .font(style.text.font())
2506 .child(diagnostic_to_render.message.clone())
2507 .into_any();
2508
2509 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
2510
2511 elements.insert(row, element);
2512 }
2513
2514 elements
2515 }
2516
2517 fn layout_inline_code_actions(
2518 &self,
2519 display_point: DisplayPoint,
2520 content_origin: gpui::Point<Pixels>,
2521 scroll_position: gpui::Point<ScrollOffset>,
2522 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2523 line_height: Pixels,
2524 snapshot: &EditorSnapshot,
2525 window: &mut Window,
2526 cx: &mut App,
2527 ) -> Option<AnyElement> {
2528 // Don't show code actions in split diff view
2529 if self.split_side.is_some() {
2530 return None;
2531 }
2532
2533 if !snapshot
2534 .show_code_actions
2535 .unwrap_or(EditorSettings::get_global(cx).inline_code_actions)
2536 {
2537 return None;
2538 }
2539
2540 let icon_size = ui::IconSize::XSmall;
2541 let mut button = self.editor.update(cx, |editor, cx| {
2542 editor.available_code_actions.as_ref()?;
2543 let active = editor
2544 .context_menu
2545 .borrow()
2546 .as_ref()
2547 .and_then(|menu| {
2548 if let crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2549 deployed_from,
2550 ..
2551 }) = menu
2552 {
2553 deployed_from.as_ref()
2554 } else {
2555 None
2556 }
2557 })
2558 .is_some_and(|source| matches!(source, CodeActionSource::Indicator(..)));
2559 Some(editor.render_inline_code_actions(icon_size, display_point.row(), active, cx))
2560 })?;
2561
2562 let buffer_point = display_point.to_point(&snapshot.display_snapshot);
2563
2564 // do not show code action for folded line
2565 if snapshot.is_line_folded(MultiBufferRow(buffer_point.row)) {
2566 return None;
2567 }
2568
2569 // do not show code action for blank line with cursor
2570 let line_indent = snapshot
2571 .display_snapshot
2572 .buffer_snapshot()
2573 .line_indent_for_row(MultiBufferRow(buffer_point.row));
2574 if line_indent.is_line_blank() {
2575 return None;
2576 }
2577
2578 const INLINE_SLOT_CHAR_LIMIT: u32 = 4;
2579 const MAX_ALTERNATE_DISTANCE: u32 = 8;
2580
2581 let excerpt_id = snapshot
2582 .display_snapshot
2583 .buffer_snapshot()
2584 .excerpt_containing(buffer_point..buffer_point)
2585 .map(|excerpt| excerpt.id());
2586
2587 let is_valid_row = |row_candidate: u32| -> bool {
2588 // move to other row if folded row
2589 if snapshot.is_line_folded(MultiBufferRow(row_candidate)) {
2590 return false;
2591 }
2592 if buffer_point.row == row_candidate {
2593 // move to other row if cursor is in slot
2594 if buffer_point.column < INLINE_SLOT_CHAR_LIMIT {
2595 return false;
2596 }
2597 } else {
2598 let candidate_point = MultiBufferPoint {
2599 row: row_candidate,
2600 column: 0,
2601 };
2602 let candidate_excerpt_id = snapshot
2603 .display_snapshot
2604 .buffer_snapshot()
2605 .excerpt_containing(candidate_point..candidate_point)
2606 .map(|excerpt| excerpt.id());
2607 // move to other row if different excerpt
2608 if excerpt_id != candidate_excerpt_id {
2609 return false;
2610 }
2611 }
2612 let line_indent = snapshot
2613 .display_snapshot
2614 .buffer_snapshot()
2615 .line_indent_for_row(MultiBufferRow(row_candidate));
2616 // use this row if it's blank
2617 if line_indent.is_line_blank() {
2618 true
2619 } else {
2620 // use this row if code starts after slot
2621 let indent_size = snapshot
2622 .display_snapshot
2623 .buffer_snapshot()
2624 .indent_size_for_line(MultiBufferRow(row_candidate));
2625 indent_size.len >= INLINE_SLOT_CHAR_LIMIT
2626 }
2627 };
2628
2629 let new_buffer_row = if is_valid_row(buffer_point.row) {
2630 Some(buffer_point.row)
2631 } else {
2632 let max_row = snapshot.display_snapshot.buffer_snapshot().max_point().row;
2633 (1..=MAX_ALTERNATE_DISTANCE).find_map(|offset| {
2634 let row_above = buffer_point.row.saturating_sub(offset);
2635 let row_below = buffer_point.row + offset;
2636 if row_above != buffer_point.row && is_valid_row(row_above) {
2637 Some(row_above)
2638 } else if row_below <= max_row && is_valid_row(row_below) {
2639 Some(row_below)
2640 } else {
2641 None
2642 }
2643 })
2644 }?;
2645
2646 let new_display_row = snapshot
2647 .display_snapshot
2648 .point_to_display_point(
2649 Point {
2650 row: new_buffer_row,
2651 column: buffer_point.column,
2652 },
2653 text::Bias::Left,
2654 )
2655 .row();
2656
2657 let start_y = content_origin.y
2658 + (((new_display_row.as_f64() - scroll_position.y) as f32) * line_height)
2659 + (line_height / 2.0)
2660 - (icon_size.square(window, cx) / 2.);
2661 let start_x = (ScrollPixelOffset::from(content_origin.x) - scroll_pixel_position.x
2662 + ScrollPixelOffset::from(window.rem_size() * 0.1))
2663 .into();
2664
2665 let absolute_offset = gpui::point(start_x, start_y);
2666 button.layout_as_root(gpui::AvailableSpace::min_size(), window, cx);
2667 button.prepaint_as_root(
2668 absolute_offset,
2669 gpui::AvailableSpace::min_size(),
2670 window,
2671 cx,
2672 );
2673 Some(button)
2674 }
2675
2676 fn layout_inline_blame(
2677 &self,
2678 display_row: DisplayRow,
2679 row_info: &RowInfo,
2680 line_layout: &LineWithInvisibles,
2681 crease_trailer: Option<&CreaseTrailerLayout>,
2682 em_width: Pixels,
2683 content_origin: gpui::Point<Pixels>,
2684 scroll_position: gpui::Point<ScrollOffset>,
2685 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2686 line_height: Pixels,
2687 window: &mut Window,
2688 cx: &mut App,
2689 ) -> Option<InlineBlameLayout> {
2690 if !self
2691 .editor
2692 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
2693 {
2694 return None;
2695 }
2696
2697 let editor = self.editor.read(cx);
2698 let blame = editor.blame.clone()?;
2699 let padding = {
2700 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
2701
2702 let mut padding = ProjectSettings::get_global(cx).git.inline_blame.padding as f32;
2703
2704 if let Some(edit_prediction) = editor.active_edit_prediction.as_ref()
2705 && let EditPrediction::Edit {
2706 display_mode: EditDisplayMode::TabAccept,
2707 ..
2708 } = &edit_prediction.completion
2709 {
2710 padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS
2711 }
2712
2713 padding * em_width
2714 };
2715
2716 let (buffer_id, entry) = blame
2717 .update(cx, |blame, cx| {
2718 blame.blame_for_rows(&[*row_info], cx).next()
2719 })
2720 .flatten()?;
2721
2722 let mut element = render_inline_blame_entry(entry.clone(), &self.style, cx)?;
2723
2724 let start_y =
2725 content_origin.y + line_height * ((display_row.as_f64() - scroll_position.y) as f32);
2726
2727 let start_x = {
2728 let line_end = if let Some(crease_trailer) = crease_trailer {
2729 crease_trailer.bounds.right()
2730 } else {
2731 Pixels::from(
2732 ScrollPixelOffset::from(content_origin.x + line_layout.width)
2733 - scroll_pixel_position.x,
2734 )
2735 };
2736
2737 let padded_line_end = line_end + padding;
2738
2739 let min_column_in_pixels = column_pixels(
2740 &self.style,
2741 ProjectSettings::get_global(cx).git.inline_blame.min_column as usize,
2742 window,
2743 );
2744 let min_start = Pixels::from(
2745 ScrollPixelOffset::from(content_origin.x + min_column_in_pixels)
2746 - scroll_pixel_position.x,
2747 );
2748
2749 cmp::max(padded_line_end, min_start)
2750 };
2751
2752 let absolute_offset = point(start_x, start_y);
2753 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2754 let bounds = Bounds::new(absolute_offset, size);
2755
2756 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
2757
2758 Some(InlineBlameLayout {
2759 element,
2760 bounds,
2761 buffer_id,
2762 entry,
2763 })
2764 }
2765
2766 fn layout_blame_popover(
2767 &self,
2768 editor_snapshot: &EditorSnapshot,
2769 text_hitbox: &Hitbox,
2770 line_height: Pixels,
2771 window: &mut Window,
2772 cx: &mut App,
2773 ) {
2774 if !self.editor.read(cx).inline_blame_popover.is_some() {
2775 return;
2776 }
2777
2778 let Some(blame) = self.editor.read(cx).blame.clone() else {
2779 return;
2780 };
2781 let cursor_point = self
2782 .editor
2783 .read(cx)
2784 .selections
2785 .newest::<language::Point>(&editor_snapshot.display_snapshot)
2786 .head();
2787
2788 let Some((buffer, buffer_point, _)) = editor_snapshot
2789 .buffer_snapshot()
2790 .point_to_buffer_point(cursor_point)
2791 else {
2792 return;
2793 };
2794
2795 let row_info = RowInfo {
2796 buffer_id: Some(buffer.remote_id()),
2797 buffer_row: Some(buffer_point.row),
2798 ..Default::default()
2799 };
2800
2801 let Some((buffer_id, blame_entry)) = blame
2802 .update(cx, |blame, cx| blame.blame_for_rows(&[row_info], cx).next())
2803 .flatten()
2804 else {
2805 return;
2806 };
2807
2808 let Some((popover_state, target_point)) = self.editor.read_with(cx, |editor, _| {
2809 editor
2810 .inline_blame_popover
2811 .as_ref()
2812 .map(|state| (state.popover_state.clone(), state.position))
2813 }) else {
2814 return;
2815 };
2816
2817 let workspace = self
2818 .editor
2819 .read_with(cx, |editor, _| editor.workspace().map(|w| w.downgrade()));
2820
2821 let maybe_element = workspace.and_then(|workspace| {
2822 render_blame_entry_popover(
2823 blame_entry,
2824 popover_state.scroll_handle,
2825 popover_state.commit_message,
2826 popover_state.markdown,
2827 workspace,
2828 &blame,
2829 buffer_id,
2830 window,
2831 cx,
2832 )
2833 });
2834
2835 if let Some(mut element) = maybe_element {
2836 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2837 let overall_height = size.height + HOVER_POPOVER_GAP;
2838 let popover_origin = if target_point.y > overall_height {
2839 point(target_point.x, target_point.y - size.height)
2840 } else {
2841 point(
2842 target_point.x,
2843 target_point.y + line_height + HOVER_POPOVER_GAP,
2844 )
2845 };
2846
2847 let horizontal_offset = (text_hitbox.top_right().x
2848 - POPOVER_RIGHT_OFFSET
2849 - (popover_origin.x + size.width))
2850 .min(Pixels::ZERO);
2851
2852 let origin = point(popover_origin.x + horizontal_offset, popover_origin.y);
2853 let popover_bounds = Bounds::new(origin, size);
2854
2855 self.editor.update(cx, |editor, _| {
2856 if let Some(state) = &mut editor.inline_blame_popover {
2857 state.popover_bounds = Some(popover_bounds);
2858 }
2859 });
2860
2861 window.defer_draw(element, origin, 2);
2862 }
2863 }
2864
2865 fn layout_blame_entries(
2866 &self,
2867 buffer_rows: &[RowInfo],
2868 em_width: Pixels,
2869 scroll_position: gpui::Point<ScrollOffset>,
2870 line_height: Pixels,
2871 gutter_hitbox: &Hitbox,
2872 max_width: Option<Pixels>,
2873 window: &mut Window,
2874 cx: &mut App,
2875 ) -> Option<Vec<AnyElement>> {
2876 if !self
2877 .editor
2878 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
2879 {
2880 return None;
2881 }
2882
2883 let blame = self.editor.read(cx).blame.clone()?;
2884 let workspace = self.editor.read(cx).workspace()?;
2885 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
2886 blame.blame_for_rows(buffer_rows, cx).collect()
2887 });
2888
2889 let width = if let Some(max_width) = max_width {
2890 AvailableSpace::Definite(max_width)
2891 } else {
2892 AvailableSpace::MaxContent
2893 };
2894 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
2895 let start_x = em_width;
2896
2897 let mut last_used_color: Option<(Hsla, Oid)> = None;
2898 let blame_renderer = cx.global::<GlobalBlameRenderer>().0.clone();
2899
2900 let shaped_lines = blamed_rows
2901 .into_iter()
2902 .enumerate()
2903 .flat_map(|(ix, blame_entry)| {
2904 let (buffer_id, blame_entry) = blame_entry?;
2905 let mut element = render_blame_entry(
2906 ix,
2907 &blame,
2908 blame_entry,
2909 &self.style,
2910 &mut last_used_color,
2911 self.editor.clone(),
2912 workspace.clone(),
2913 buffer_id,
2914 &*blame_renderer,
2915 window,
2916 cx,
2917 )?;
2918
2919 let start_y = ix as f32 * line_height
2920 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height));
2921 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
2922
2923 element.prepaint_as_root(
2924 absolute_offset,
2925 size(width, AvailableSpace::MinContent),
2926 window,
2927 cx,
2928 );
2929
2930 Some(element)
2931 })
2932 .collect();
2933
2934 Some(shaped_lines)
2935 }
2936
2937 fn layout_indent_guides(
2938 &self,
2939 content_origin: gpui::Point<Pixels>,
2940 text_origin: gpui::Point<Pixels>,
2941 visible_buffer_range: Range<MultiBufferRow>,
2942 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2943 line_height: Pixels,
2944 snapshot: &DisplaySnapshot,
2945 window: &mut Window,
2946 cx: &mut App,
2947 ) -> Option<Vec<IndentGuideLayout>> {
2948 let indent_guides = self.editor.update(cx, |editor, cx| {
2949 editor.indent_guides(visible_buffer_range, snapshot, cx)
2950 })?;
2951
2952 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
2953 editor
2954 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
2955 .unwrap_or_default()
2956 });
2957
2958 Some(
2959 indent_guides
2960 .into_iter()
2961 .enumerate()
2962 .filter_map(|(i, indent_guide)| {
2963 let single_indent_width =
2964 column_pixels(&self.style, indent_guide.tab_size as usize, window);
2965 let total_width = single_indent_width * indent_guide.depth as f32;
2966 let start_x = Pixels::from(
2967 ScrollOffset::from(content_origin.x + total_width)
2968 - scroll_pixel_position.x,
2969 );
2970 if start_x >= text_origin.x {
2971 let (offset_y, length) = Self::calculate_indent_guide_bounds(
2972 indent_guide.start_row..indent_guide.end_row,
2973 line_height,
2974 snapshot,
2975 );
2976
2977 let start_y = Pixels::from(
2978 ScrollOffset::from(content_origin.y) + offset_y
2979 - scroll_pixel_position.y,
2980 );
2981
2982 Some(IndentGuideLayout {
2983 origin: point(start_x, start_y),
2984 length,
2985 single_indent_width,
2986 depth: indent_guide.depth,
2987 active: active_indent_guide_indices.contains(&i),
2988 settings: indent_guide.settings,
2989 })
2990 } else {
2991 None
2992 }
2993 })
2994 .collect(),
2995 )
2996 }
2997
2998 fn layout_wrap_guides(
2999 &self,
3000 em_advance: Pixels,
3001 scroll_position: gpui::Point<f64>,
3002 content_origin: gpui::Point<Pixels>,
3003 scrollbar_layout: Option<&EditorScrollbars>,
3004 vertical_scrollbar_width: Pixels,
3005 hitbox: &Hitbox,
3006 window: &Window,
3007 cx: &App,
3008 ) -> SmallVec<[(Pixels, bool); 2]> {
3009 let scroll_left = scroll_position.x as f32 * em_advance;
3010 let content_origin = content_origin.x;
3011 let horizontal_offset = content_origin - scroll_left;
3012 let vertical_scrollbar_width = scrollbar_layout
3013 .and_then(|layout| layout.visible.then_some(vertical_scrollbar_width))
3014 .unwrap_or_default();
3015
3016 self.editor
3017 .read(cx)
3018 .wrap_guides(cx)
3019 .into_iter()
3020 .flat_map(|(guide, active)| {
3021 let wrap_position = column_pixels(&self.style, guide, window);
3022 let wrap_guide_x = wrap_position + horizontal_offset;
3023 let display_wrap_guide = wrap_guide_x >= content_origin
3024 && wrap_guide_x <= hitbox.bounds.right() - vertical_scrollbar_width;
3025
3026 display_wrap_guide.then_some((wrap_guide_x, active))
3027 })
3028 .collect()
3029 }
3030
3031 fn calculate_indent_guide_bounds(
3032 row_range: Range<MultiBufferRow>,
3033 line_height: Pixels,
3034 snapshot: &DisplaySnapshot,
3035 ) -> (f64, gpui::Pixels) {
3036 let start_point = Point::new(row_range.start.0, 0);
3037 let end_point = Point::new(row_range.end.0, 0);
3038
3039 let row_range = start_point.to_display_point(snapshot).row()
3040 ..end_point.to_display_point(snapshot).row();
3041
3042 let mut prev_line = start_point;
3043 prev_line.row = prev_line.row.saturating_sub(1);
3044 let prev_line = prev_line.to_display_point(snapshot).row();
3045
3046 let mut cons_line = end_point;
3047 cons_line.row += 1;
3048 let cons_line = cons_line.to_display_point(snapshot).row();
3049
3050 let mut offset_y = row_range.start.as_f64() * f64::from(line_height);
3051 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
3052
3053 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
3054 if row_range.end == cons_line {
3055 length += line_height;
3056 }
3057
3058 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
3059 // we want to extend the indent guide to the start of the block.
3060 let mut block_height = 0;
3061 let mut block_offset = 0;
3062 let mut found_excerpt_header = false;
3063 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
3064 if matches!(
3065 block,
3066 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
3067 ) {
3068 found_excerpt_header = true;
3069 break;
3070 }
3071 block_offset += block.height();
3072 block_height += block.height();
3073 }
3074 if !found_excerpt_header {
3075 offset_y -= block_offset as f64 * f64::from(line_height);
3076 length += block_height as f32 * line_height;
3077 }
3078
3079 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
3080 // we want to ensure that the indent guide stops before the excerpt header.
3081 let mut block_height = 0;
3082 let mut found_excerpt_header = false;
3083 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
3084 if matches!(
3085 block,
3086 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
3087 ) {
3088 found_excerpt_header = true;
3089 }
3090 block_height += block.height();
3091 }
3092 if found_excerpt_header {
3093 length -= block_height as f32 * line_height;
3094 }
3095
3096 (offset_y, length)
3097 }
3098
3099 fn layout_breakpoints(
3100 &self,
3101 line_height: Pixels,
3102 range: Range<DisplayRow>,
3103 scroll_position: gpui::Point<ScrollOffset>,
3104 gutter_dimensions: &GutterDimensions,
3105 gutter_hitbox: &Hitbox,
3106 snapshot: &EditorSnapshot,
3107 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
3108 row_infos: &[RowInfo],
3109 window: &mut Window,
3110 cx: &mut App,
3111 ) -> Vec<AnyElement> {
3112 if self.split_side == Some(SplitSide::Left) {
3113 return Vec::new();
3114 }
3115
3116 self.editor.update(cx, |editor, cx| {
3117 breakpoints
3118 .into_iter()
3119 .filter_map(|(display_row, (text_anchor, bp, state))| {
3120 if row_infos
3121 .get((display_row.0.saturating_sub(range.start.0)) as usize)
3122 .is_some_and(|row_info| {
3123 row_info.expand_info.is_some()
3124 || row_info
3125 .diff_status
3126 .is_some_and(|status| status.is_deleted())
3127 })
3128 {
3129 return None;
3130 }
3131
3132 if range.start > display_row || range.end < display_row {
3133 return None;
3134 }
3135
3136 let row =
3137 MultiBufferRow(DisplayPoint::new(display_row, 0).to_point(snapshot).row);
3138 if snapshot.is_line_folded(row) {
3139 return None;
3140 }
3141
3142 let button = editor.render_breakpoint(text_anchor, display_row, &bp, state, cx);
3143
3144 let button = prepaint_gutter_button(
3145 button.into_any_element(),
3146 display_row,
3147 line_height,
3148 gutter_dimensions,
3149 scroll_position,
3150 gutter_hitbox,
3151 window,
3152 cx,
3153 );
3154 Some(button)
3155 })
3156 .collect_vec()
3157 })
3158 }
3159
3160 fn should_render_diff_review_button(
3161 &self,
3162 range: Range<DisplayRow>,
3163 row_infos: &[RowInfo],
3164 snapshot: &EditorSnapshot,
3165 cx: &App,
3166 ) -> Option<(DisplayRow, Option<u32>)> {
3167 if !cx.has_flag::<DiffReviewFeatureFlag>() {
3168 return None;
3169 }
3170
3171 let show_diff_review_button = self.editor.read(cx).show_diff_review_button();
3172 if !show_diff_review_button {
3173 return None;
3174 }
3175
3176 let indicator = self.editor.read(cx).gutter_diff_review_indicator.0?;
3177 if !indicator.is_active {
3178 return None;
3179 }
3180
3181 let display_row = indicator
3182 .start
3183 .to_display_point(&snapshot.display_snapshot)
3184 .row();
3185 let row_index = (display_row.0.saturating_sub(range.start.0)) as usize;
3186
3187 let row_info = row_infos.get(row_index);
3188 if row_info.is_some_and(|row_info| row_info.expand_info.is_some()) {
3189 return None;
3190 }
3191
3192 let buffer_id = row_info.and_then(|info| info.buffer_id);
3193 if buffer_id.is_none() {
3194 return None;
3195 }
3196
3197 let editor = self.editor.read(cx);
3198 if buffer_id.is_some_and(|buffer_id| editor.is_buffer_folded(buffer_id, cx)) {
3199 return None;
3200 }
3201
3202 let buffer_row = row_info.and_then(|info| info.buffer_row);
3203 Some((display_row, buffer_row))
3204 }
3205
3206 #[allow(clippy::too_many_arguments)]
3207 fn layout_run_indicators(
3208 &self,
3209 line_height: Pixels,
3210 range: Range<DisplayRow>,
3211 row_infos: &[RowInfo],
3212 scroll_position: gpui::Point<ScrollOffset>,
3213 gutter_dimensions: &GutterDimensions,
3214 gutter_hitbox: &Hitbox,
3215 snapshot: &EditorSnapshot,
3216 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
3217 window: &mut Window,
3218 cx: &mut App,
3219 ) -> Vec<AnyElement> {
3220 if self.split_side == Some(SplitSide::Left) {
3221 return Vec::new();
3222 }
3223
3224 self.editor.update(cx, |editor, cx| {
3225 let active_task_indicator_row =
3226 // TODO: add edit button on the right side of each row in the context menu
3227 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
3228 deployed_from,
3229 actions,
3230 ..
3231 })) = editor.context_menu.borrow().as_ref()
3232 {
3233 actions
3234 .tasks()
3235 .map(|tasks| tasks.position.to_display_point(snapshot).row())
3236 .or_else(|| match deployed_from {
3237 Some(CodeActionSource::Indicator(row)) => Some(*row),
3238 _ => None,
3239 })
3240 } else {
3241 None
3242 };
3243
3244 let offset_range_start =
3245 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
3246
3247 let offset_range_end =
3248 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
3249
3250 editor
3251 .tasks
3252 .iter()
3253 .filter_map(|(_, tasks)| {
3254 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot());
3255 if multibuffer_point < offset_range_start
3256 || multibuffer_point > offset_range_end
3257 {
3258 return None;
3259 }
3260 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
3261 let buffer_folded = snapshot
3262 .buffer_snapshot()
3263 .buffer_line_for_row(multibuffer_row)
3264 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
3265 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
3266 .unwrap_or(false);
3267 if buffer_folded {
3268 return None;
3269 }
3270
3271 if snapshot.is_line_folded(multibuffer_row) {
3272 // Skip folded indicators, unless it's the starting line of a fold.
3273 if multibuffer_row
3274 .0
3275 .checked_sub(1)
3276 .is_some_and(|previous_row| {
3277 snapshot.is_line_folded(MultiBufferRow(previous_row))
3278 })
3279 {
3280 return None;
3281 }
3282 }
3283
3284 let display_row = multibuffer_point.to_display_point(snapshot).row();
3285 if !range.contains(&display_row) {
3286 return None;
3287 }
3288 if row_infos
3289 .get((display_row - range.start).0 as usize)
3290 .is_some_and(|row_info| row_info.expand_info.is_some())
3291 {
3292 return None;
3293 }
3294
3295 let removed_breakpoint = breakpoints.remove(&display_row);
3296 let button = editor.render_run_indicator(
3297 &self.style,
3298 Some(display_row) == active_task_indicator_row,
3299 display_row,
3300 removed_breakpoint,
3301 cx,
3302 );
3303
3304 let button = prepaint_gutter_button(
3305 button.into_any_element(),
3306 display_row,
3307 line_height,
3308 gutter_dimensions,
3309 scroll_position,
3310 gutter_hitbox,
3311 window,
3312 cx,
3313 );
3314 Some(button)
3315 })
3316 .collect_vec()
3317 })
3318 }
3319
3320 fn layout_expand_toggles(
3321 &self,
3322 gutter_hitbox: &Hitbox,
3323 gutter_dimensions: GutterDimensions,
3324 em_width: Pixels,
3325 line_height: Pixels,
3326 scroll_position: gpui::Point<ScrollOffset>,
3327 buffer_rows: &[RowInfo],
3328 window: &mut Window,
3329 cx: &mut App,
3330 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
3331 if self.editor.read(cx).disable_expand_excerpt_buttons {
3332 return vec![];
3333 }
3334
3335 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
3336
3337 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
3338
3339 let max_line_number_length = self
3340 .editor
3341 .read(cx)
3342 .buffer()
3343 .read(cx)
3344 .snapshot(cx)
3345 .widest_line_number()
3346 .ilog10()
3347 + 1;
3348
3349 let git_gutter_width = Self::gutter_strip_width(line_height)
3350 + gutter_dimensions
3351 .git_blame_entries_width
3352 .unwrap_or_default();
3353 let available_width = gutter_dimensions.left_padding - git_gutter_width;
3354
3355 buffer_rows
3356 .iter()
3357 .enumerate()
3358 .map(|(ix, row_info)| {
3359 let ExpandInfo {
3360 excerpt_id,
3361 direction,
3362 } = row_info.expand_info?;
3363
3364 let icon_name = match direction {
3365 ExpandExcerptDirection::Up => IconName::ExpandUp,
3366 ExpandExcerptDirection::Down => IconName::ExpandDown,
3367 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
3368 };
3369
3370 let editor = self.editor.clone();
3371 let is_wide = max_line_number_length
3372 >= EditorSettings::get_global(cx).gutter.min_line_number_digits as u32
3373 && row_info
3374 .buffer_row
3375 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
3376 || gutter_dimensions.right_padding == px(0.);
3377
3378 let width = if is_wide {
3379 available_width - px(5.)
3380 } else {
3381 available_width + em_width - px(5.)
3382 };
3383
3384 let toggle = IconButton::new(("expand", ix), icon_name)
3385 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
3386 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
3387 .width(width)
3388 .on_click(move |_, window, cx| {
3389 editor.update(cx, |editor, cx| {
3390 editor.expand_excerpt(excerpt_id, direction, window, cx);
3391 });
3392 })
3393 .tooltip(Tooltip::for_action_title(
3394 "Expand Excerpt",
3395 &crate::actions::ExpandExcerpts::default(),
3396 ))
3397 .into_any_element();
3398
3399 let position = point(
3400 git_gutter_width + px(1.),
3401 ix as f32 * line_height
3402 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height))
3403 + px(1.),
3404 );
3405 let origin = gutter_hitbox.origin + position;
3406
3407 Some((toggle, origin))
3408 })
3409 .collect()
3410 }
3411
3412 fn layout_line_numbers(
3413 &self,
3414 gutter_hitbox: Option<&Hitbox>,
3415 gutter_dimensions: GutterDimensions,
3416 line_height: Pixels,
3417 scroll_position: gpui::Point<ScrollOffset>,
3418 rows: Range<DisplayRow>,
3419 buffer_rows: &[RowInfo],
3420 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3421 current_selection_head: Option<DisplayRow>,
3422 snapshot: &EditorSnapshot,
3423 window: &mut Window,
3424 cx: &mut App,
3425 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
3426 let include_line_numbers = snapshot
3427 .show_line_numbers
3428 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
3429 if !include_line_numbers {
3430 return Arc::default();
3431 }
3432
3433 let relative = self.editor.read(cx).relative_line_numbers(cx);
3434
3435 let relative_line_numbers_enabled = relative.enabled();
3436 let relative_rows = if relative_line_numbers_enabled
3437 && let Some(current_selection_head) = current_selection_head
3438 {
3439 snapshot.calculate_relative_line_numbers(
3440 &rows,
3441 current_selection_head,
3442 relative.wrapped(),
3443 )
3444 } else {
3445 Default::default()
3446 };
3447
3448 let mut line_number = String::new();
3449 let segments = buffer_rows.iter().enumerate().flat_map(|(ix, row_info)| {
3450 let display_row = DisplayRow(rows.start.0 + ix as u32);
3451 line_number.clear();
3452 let non_relative_number = if relative.wrapped() {
3453 row_info.buffer_row.or(row_info.wrapped_buffer_row)? + 1
3454 } else {
3455 row_info.buffer_row? + 1
3456 };
3457 let relative_number = relative_rows.get(&display_row);
3458 if !(relative_line_numbers_enabled && relative_number.is_some())
3459 && !snapshot.number_deleted_lines
3460 && row_info
3461 .diff_status
3462 .is_some_and(|status| status.is_deleted())
3463 {
3464 return None;
3465 }
3466
3467 let number = relative_number.unwrap_or(&non_relative_number);
3468 write!(&mut line_number, "{number}").unwrap();
3469
3470 let color = active_rows
3471 .get(&display_row)
3472 .map(|spec| {
3473 if spec.breakpoint {
3474 cx.theme().colors().debugger_accent
3475 } else {
3476 cx.theme().colors().editor_active_line_number
3477 }
3478 })
3479 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
3480 let shaped_line =
3481 self.shape_line_number(SharedString::from(&line_number), color, window);
3482 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
3483 let line_origin = gutter_hitbox.map(|hitbox| {
3484 hitbox.origin
3485 + point(
3486 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
3487 ix as f32 * line_height
3488 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height)),
3489 )
3490 });
3491
3492 #[cfg(not(test))]
3493 let hitbox = line_origin.map(|line_origin| {
3494 window.insert_hitbox(
3495 Bounds::new(line_origin, size(shaped_line.width, line_height)),
3496 HitboxBehavior::Normal,
3497 )
3498 });
3499 #[cfg(test)]
3500 let hitbox = {
3501 let _ = line_origin;
3502 None
3503 };
3504
3505 let segment = LineNumberSegment {
3506 shaped_line,
3507 hitbox,
3508 };
3509
3510 let buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
3511 let multi_buffer_row = MultiBufferRow(buffer_row);
3512
3513 Some((multi_buffer_row, segment))
3514 });
3515
3516 let mut line_numbers: HashMap<MultiBufferRow, LineNumberLayout> = HashMap::default();
3517 for (buffer_row, segment) in segments {
3518 line_numbers
3519 .entry(buffer_row)
3520 .or_insert_with(|| LineNumberLayout {
3521 segments: Default::default(),
3522 })
3523 .segments
3524 .push(segment);
3525 }
3526 Arc::new(line_numbers)
3527 }
3528
3529 fn layout_crease_toggles(
3530 &self,
3531 rows: Range<DisplayRow>,
3532 row_infos: &[RowInfo],
3533 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3534 snapshot: &EditorSnapshot,
3535 window: &mut Window,
3536 cx: &mut App,
3537 ) -> Vec<Option<AnyElement>> {
3538 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
3539 && snapshot.mode.is_full()
3540 && self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
3541 if include_fold_statuses {
3542 row_infos
3543 .iter()
3544 .enumerate()
3545 .map(|(ix, info)| {
3546 if info.expand_info.is_some() {
3547 return None;
3548 }
3549 let row = info.multibuffer_row?;
3550 let display_row = DisplayRow(rows.start.0 + ix as u32);
3551 let active = active_rows.contains_key(&display_row);
3552
3553 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
3554 })
3555 .collect()
3556 } else {
3557 Vec::new()
3558 }
3559 }
3560
3561 fn layout_crease_trailers(
3562 &self,
3563 buffer_rows: impl IntoIterator<Item = RowInfo>,
3564 snapshot: &EditorSnapshot,
3565 window: &mut Window,
3566 cx: &mut App,
3567 ) -> Vec<Option<AnyElement>> {
3568 buffer_rows
3569 .into_iter()
3570 .map(|row_info| {
3571 if row_info.expand_info.is_some() {
3572 return None;
3573 }
3574 if let Some(row) = row_info.multibuffer_row {
3575 snapshot.render_crease_trailer(row, window, cx)
3576 } else {
3577 None
3578 }
3579 })
3580 .collect()
3581 }
3582
3583 fn bg_segments_per_row(
3584 rows: Range<DisplayRow>,
3585 selections: &[(PlayerColor, Vec<SelectionLayout>)],
3586 highlight_ranges: &[(Range<DisplayPoint>, Hsla)],
3587 base_background: Hsla,
3588 ) -> Vec<Vec<(Range<DisplayPoint>, Hsla)>> {
3589 if rows.start >= rows.end {
3590 return Vec::new();
3591 }
3592 if !base_background.is_opaque() {
3593 // We don't actually know what color is behind this editor.
3594 return Vec::new();
3595 }
3596 let highlight_iter = highlight_ranges.iter().cloned();
3597 let selection_iter = selections.iter().flat_map(|(player_color, layouts)| {
3598 let color = player_color.selection;
3599 layouts.iter().filter_map(move |selection_layout| {
3600 if selection_layout.range.start != selection_layout.range.end {
3601 Some((selection_layout.range.clone(), color))
3602 } else {
3603 None
3604 }
3605 })
3606 });
3607 let mut per_row_map = vec![Vec::new(); rows.len()];
3608 for (range, color) in highlight_iter.chain(selection_iter) {
3609 let covered_rows = if range.end.column() == 0 {
3610 cmp::max(range.start.row(), rows.start)..cmp::min(range.end.row(), rows.end)
3611 } else {
3612 cmp::max(range.start.row(), rows.start)
3613 ..cmp::min(range.end.row().next_row(), rows.end)
3614 };
3615 for row in covered_rows.iter_rows() {
3616 let seg_start = if row == range.start.row() {
3617 range.start
3618 } else {
3619 DisplayPoint::new(row, 0)
3620 };
3621 let seg_end = if row == range.end.row() && range.end.column() != 0 {
3622 range.end
3623 } else {
3624 DisplayPoint::new(row, u32::MAX)
3625 };
3626 let ix = row.minus(rows.start) as usize;
3627 debug_assert!(row >= rows.start && row < rows.end);
3628 debug_assert!(ix < per_row_map.len());
3629 per_row_map[ix].push((seg_start..seg_end, color));
3630 }
3631 }
3632 for row_segments in per_row_map.iter_mut() {
3633 if row_segments.is_empty() {
3634 continue;
3635 }
3636 let segments = mem::take(row_segments);
3637 let merged = Self::merge_overlapping_ranges(segments, base_background);
3638 *row_segments = merged;
3639 }
3640 per_row_map
3641 }
3642
3643 /// Merge overlapping ranges by splitting at all range boundaries and blending colors where
3644 /// multiple ranges overlap. The result contains non-overlapping ranges ordered from left to right.
3645 ///
3646 /// Expects `start.row() == end.row()` for each range.
3647 fn merge_overlapping_ranges(
3648 ranges: Vec<(Range<DisplayPoint>, Hsla)>,
3649 base_background: Hsla,
3650 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
3651 struct Boundary {
3652 pos: DisplayPoint,
3653 is_start: bool,
3654 index: usize,
3655 color: Hsla,
3656 }
3657
3658 let mut boundaries: SmallVec<[Boundary; 16]> = SmallVec::with_capacity(ranges.len() * 2);
3659 for (index, (range, color)) in ranges.iter().enumerate() {
3660 debug_assert!(
3661 range.start.row() == range.end.row(),
3662 "expects single-row ranges"
3663 );
3664 if range.start < range.end {
3665 boundaries.push(Boundary {
3666 pos: range.start,
3667 is_start: true,
3668 index,
3669 color: *color,
3670 });
3671 boundaries.push(Boundary {
3672 pos: range.end,
3673 is_start: false,
3674 index,
3675 color: *color,
3676 });
3677 }
3678 }
3679
3680 if boundaries.is_empty() {
3681 return Vec::new();
3682 }
3683
3684 boundaries
3685 .sort_unstable_by(|a, b| a.pos.cmp(&b.pos).then_with(|| a.is_start.cmp(&b.is_start)));
3686
3687 let mut processed_ranges: Vec<(Range<DisplayPoint>, Hsla)> = Vec::new();
3688 let mut active_ranges: SmallVec<[(usize, Hsla); 8]> = SmallVec::new();
3689
3690 let mut i = 0;
3691 let mut start_pos = boundaries[0].pos;
3692
3693 let boundaries_len = boundaries.len();
3694 while i < boundaries_len {
3695 let current_boundary_pos = boundaries[i].pos;
3696 if start_pos < current_boundary_pos {
3697 if !active_ranges.is_empty() {
3698 let mut color = base_background;
3699 for &(_, c) in &active_ranges {
3700 color = Hsla::blend(color, c);
3701 }
3702 if let Some((last_range, last_color)) = processed_ranges.last_mut() {
3703 if *last_color == color && last_range.end == start_pos {
3704 last_range.end = current_boundary_pos;
3705 } else {
3706 processed_ranges.push((start_pos..current_boundary_pos, color));
3707 }
3708 } else {
3709 processed_ranges.push((start_pos..current_boundary_pos, color));
3710 }
3711 }
3712 }
3713 while i < boundaries_len && boundaries[i].pos == current_boundary_pos {
3714 let active_range = &boundaries[i];
3715 if active_range.is_start {
3716 let idx = active_range.index;
3717 let pos = active_ranges
3718 .binary_search_by_key(&idx, |(i, _)| *i)
3719 .unwrap_or_else(|p| p);
3720 active_ranges.insert(pos, (idx, active_range.color));
3721 } else {
3722 let idx = active_range.index;
3723 if let Ok(pos) = active_ranges.binary_search_by_key(&idx, |(i, _)| *i) {
3724 active_ranges.remove(pos);
3725 }
3726 }
3727 i += 1;
3728 }
3729 start_pos = current_boundary_pos;
3730 }
3731
3732 processed_ranges
3733 }
3734
3735 fn layout_lines(
3736 rows: Range<DisplayRow>,
3737 snapshot: &EditorSnapshot,
3738 style: &EditorStyle,
3739 editor_width: Pixels,
3740 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3741 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
3742 window: &mut Window,
3743 cx: &mut App,
3744 ) -> Vec<LineWithInvisibles> {
3745 if rows.start >= rows.end {
3746 return Vec::new();
3747 }
3748
3749 // Show the placeholder when the editor is empty
3750 if snapshot.is_empty() {
3751 let font_size = style.text.font_size.to_pixels(window.rem_size());
3752 let placeholder_color = cx.theme().colors().text_placeholder;
3753 let placeholder_text = snapshot.placeholder_text();
3754
3755 let placeholder_lines = placeholder_text
3756 .as_ref()
3757 .map_or(Vec::new(), |text| text.split('\n').collect::<Vec<_>>());
3758
3759 let placeholder_line_count = placeholder_lines.len();
3760
3761 placeholder_lines
3762 .into_iter()
3763 .skip(rows.start.0 as usize)
3764 .chain(iter::repeat(""))
3765 .take(cmp::max(rows.len(), placeholder_line_count))
3766 .map(move |line| {
3767 let run = TextRun {
3768 len: line.len(),
3769 font: style.text.font(),
3770 color: placeholder_color,
3771 ..Default::default()
3772 };
3773 let line = window.text_system().shape_line(
3774 line.to_string().into(),
3775 font_size,
3776 &[run],
3777 None,
3778 );
3779 LineWithInvisibles {
3780 width: line.width,
3781 len: line.len,
3782 fragments: smallvec![LineFragment::Text(line)],
3783 invisibles: Vec::new(),
3784 font_size,
3785 }
3786 })
3787 .collect()
3788 } else {
3789 let use_tree_sitter = !snapshot.semantic_tokens_enabled
3790 || snapshot.use_tree_sitter_for_syntax(rows.start, cx);
3791 let chunks = snapshot.highlighted_chunks(rows.clone(), use_tree_sitter, style);
3792 LineWithInvisibles::from_chunks(
3793 chunks,
3794 style,
3795 MAX_LINE_LEN,
3796 rows.len(),
3797 &snapshot.mode,
3798 editor_width,
3799 is_row_soft_wrapped,
3800 bg_segments_per_row,
3801 window,
3802 cx,
3803 )
3804 }
3805 }
3806
3807 fn prepaint_lines(
3808 &self,
3809 start_row: DisplayRow,
3810 line_layouts: &mut [LineWithInvisibles],
3811 line_height: Pixels,
3812 scroll_position: gpui::Point<ScrollOffset>,
3813 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
3814 content_origin: gpui::Point<Pixels>,
3815 window: &mut Window,
3816 cx: &mut App,
3817 ) -> SmallVec<[AnyElement; 1]> {
3818 let mut line_elements = SmallVec::new();
3819 for (ix, line) in line_layouts.iter_mut().enumerate() {
3820 let row = start_row + DisplayRow(ix as u32);
3821 line.prepaint(
3822 line_height,
3823 scroll_position,
3824 scroll_pixel_position,
3825 row,
3826 content_origin,
3827 &mut line_elements,
3828 window,
3829 cx,
3830 );
3831 }
3832 line_elements
3833 }
3834
3835 fn render_block(
3836 &self,
3837 block: &Block,
3838 available_width: AvailableSpace,
3839 block_id: BlockId,
3840 block_row_start: DisplayRow,
3841 snapshot: &EditorSnapshot,
3842 text_x: Pixels,
3843 rows: &Range<DisplayRow>,
3844 line_layouts: &[LineWithInvisibles],
3845 editor_margins: &EditorMargins,
3846 line_height: Pixels,
3847 em_width: Pixels,
3848 text_hitbox: &Hitbox,
3849 editor_width: Pixels,
3850 scroll_width: &mut Pixels,
3851 resized_blocks: &mut HashMap<CustomBlockId, u32>,
3852 row_block_types: &mut HashMap<DisplayRow, bool>,
3853 selections: &[Selection<Point>],
3854 selected_buffer_ids: &Vec<BufferId>,
3855 latest_selection_anchors: &HashMap<BufferId, Anchor>,
3856 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3857 sticky_header_excerpt_id: Option<ExcerptId>,
3858 block_resize_offset: &mut i32,
3859 window: &mut Window,
3860 cx: &mut App,
3861 ) -> Option<(AnyElement, Size<Pixels>, DisplayRow, Pixels)> {
3862 let mut x_position = None;
3863 let mut element = match block {
3864 Block::Custom(custom) => {
3865 let block_start = custom.start().to_point(&snapshot.buffer_snapshot());
3866 let block_end = custom.end().to_point(&snapshot.buffer_snapshot());
3867 if block.place_near() && snapshot.is_line_folded(MultiBufferRow(block_start.row)) {
3868 return None;
3869 }
3870 let align_to = block_start.to_display_point(snapshot);
3871 let x_and_width = |layout: &LineWithInvisibles| {
3872 Some((
3873 text_x + layout.x_for_index(align_to.column() as usize),
3874 text_x + layout.width,
3875 ))
3876 };
3877 let line_ix = align_to.row().0.checked_sub(rows.start.0);
3878 x_position =
3879 if let Some(layout) = line_ix.and_then(|ix| line_layouts.get(ix as usize)) {
3880 x_and_width(layout)
3881 } else {
3882 x_and_width(&layout_line(
3883 align_to.row(),
3884 snapshot,
3885 &self.style,
3886 editor_width,
3887 is_row_soft_wrapped,
3888 window,
3889 cx,
3890 ))
3891 };
3892
3893 let anchor_x = x_position.unwrap().0;
3894
3895 let selected = selections
3896 .binary_search_by(|selection| {
3897 if selection.end <= block_start {
3898 Ordering::Less
3899 } else if selection.start >= block_end {
3900 Ordering::Greater
3901 } else {
3902 Ordering::Equal
3903 }
3904 })
3905 .is_ok();
3906
3907 div()
3908 .size_full()
3909 .child(custom.render(&mut BlockContext {
3910 window,
3911 app: cx,
3912 anchor_x,
3913 margins: editor_margins,
3914 line_height,
3915 em_width,
3916 block_id,
3917 selected,
3918 max_width: text_hitbox.size.width.max(*scroll_width),
3919 editor_style: &self.style,
3920 }))
3921 .into_any()
3922 }
3923
3924 Block::FoldedBuffer {
3925 first_excerpt,
3926 height,
3927 ..
3928 } => {
3929 let mut result = v_flex().id(block_id).w_full().pr(editor_margins.right);
3930
3931 if self.should_show_buffer_headers() {
3932 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
3933 let jump_data = header_jump_data(
3934 snapshot,
3935 block_row_start,
3936 *height,
3937 first_excerpt,
3938 latest_selection_anchors,
3939 );
3940 result = result.child(self.render_buffer_header(
3941 first_excerpt,
3942 true,
3943 selected,
3944 false,
3945 jump_data,
3946 window,
3947 cx,
3948 ));
3949 } else {
3950 result =
3951 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
3952 }
3953
3954 result.into_any_element()
3955 }
3956
3957 Block::ExcerptBoundary { .. } => {
3958 let color = cx.theme().colors().clone();
3959 let mut result = v_flex().id(block_id).w_full();
3960
3961 result = result.child(
3962 h_flex().relative().child(
3963 div()
3964 .top(line_height / 2.)
3965 .absolute()
3966 .w_full()
3967 .h_px()
3968 .bg(color.border_variant),
3969 ),
3970 );
3971
3972 result.into_any()
3973 }
3974
3975 Block::BufferHeader { excerpt, height } => {
3976 let mut result = v_flex().id(block_id).w_full();
3977
3978 if self.should_show_buffer_headers() {
3979 let jump_data = header_jump_data(
3980 snapshot,
3981 block_row_start,
3982 *height,
3983 excerpt,
3984 latest_selection_anchors,
3985 );
3986
3987 if sticky_header_excerpt_id != Some(excerpt.id) {
3988 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3989
3990 result = result.child(div().pr(editor_margins.right).child(
3991 self.render_buffer_header(
3992 excerpt, false, selected, false, jump_data, window, cx,
3993 ),
3994 ));
3995 } else {
3996 result =
3997 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
3998 }
3999 } else {
4000 result =
4001 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
4002 }
4003
4004 result.into_any()
4005 }
4006
4007 Block::Spacer { height, .. } => div()
4008 .id(block_id)
4009 .w_full()
4010 .h((*height as f32) * line_height)
4011 // the checkerboard pattern is semi-transparent, so we render a
4012 // solid background to prevent indent guides peeking through
4013 .bg(cx.theme().colors().editor_background)
4014 .child(
4015 div()
4016 .size_full()
4017 .bg(checkerboard(cx.theme().colors().panel_background, {
4018 let target_size = 16.0;
4019 let scale = window.scale_factor();
4020 Self::checkerboard_size(
4021 f32::from(line_height) * scale,
4022 target_size * scale,
4023 )
4024 })),
4025 )
4026 .into_any(),
4027 };
4028
4029 // Discover the element's content height, then round up to the nearest multiple of line height.
4030 let preliminary_size = element.layout_as_root(
4031 size(available_width, AvailableSpace::MinContent),
4032 window,
4033 cx,
4034 );
4035 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
4036 let final_size = if preliminary_size.height == quantized_height {
4037 preliminary_size
4038 } else {
4039 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
4040 };
4041 let mut element_height_in_lines = ((final_size.height / line_height).ceil() as u32).max(1);
4042
4043 let effective_row_start = block_row_start.0 as i32 + *block_resize_offset;
4044 debug_assert!(effective_row_start >= 0);
4045 let mut row = DisplayRow(effective_row_start.max(0) as u32);
4046
4047 let mut x_offset = px(0.);
4048 let mut is_block = true;
4049
4050 if let BlockId::Custom(custom_block_id) = block_id
4051 && block.has_height()
4052 {
4053 if block.place_near()
4054 && let Some((x_target, line_width)) = x_position
4055 {
4056 let margin = em_width * 2;
4057 if line_width + final_size.width + margin
4058 < editor_width + editor_margins.gutter.full_width()
4059 && !row_block_types.contains_key(&(row - 1))
4060 && element_height_in_lines == 1
4061 {
4062 x_offset = line_width + margin;
4063 row = row - 1;
4064 is_block = false;
4065 element_height_in_lines = 0;
4066 row_block_types.insert(row, is_block);
4067 } else {
4068 let max_offset =
4069 editor_width + editor_margins.gutter.full_width() - final_size.width;
4070 let min_offset = (x_target + em_width - final_size.width)
4071 .max(editor_margins.gutter.full_width());
4072 x_offset = x_target.min(max_offset).max(min_offset);
4073 }
4074 };
4075 if element_height_in_lines != block.height() {
4076 *block_resize_offset += element_height_in_lines as i32 - block.height() as i32;
4077 resized_blocks.insert(custom_block_id, element_height_in_lines);
4078 }
4079 }
4080 for i in 0..element_height_in_lines {
4081 row_block_types.insert(row + i, is_block);
4082 }
4083
4084 Some((element, final_size, row, x_offset))
4085 }
4086
4087 /// The checkerboard pattern height must be an even factor of the line
4088 /// height, so that two consecutive spacer blocks can render contiguously
4089 /// without an obvious break in the pattern.
4090 fn checkerboard_size(line_height: f32, target_height: f32) -> f32 {
4091 let k_approx = line_height / (2.0 * target_height);
4092 let k_floor = (k_approx.floor() as u32).max(1);
4093 let k_ceil = (k_approx.ceil() as u32).max(1);
4094
4095 let size_floor = line_height / (2 * k_floor) as f32;
4096 let size_ceil = line_height / (2 * k_ceil) as f32;
4097
4098 if (size_floor - target_height).abs() <= (size_ceil - target_height).abs() {
4099 size_floor
4100 } else {
4101 size_ceil
4102 }
4103 }
4104
4105 fn render_buffer_header(
4106 &self,
4107 for_excerpt: &ExcerptInfo,
4108 is_folded: bool,
4109 is_selected: bool,
4110 is_sticky: bool,
4111 jump_data: JumpData,
4112 window: &mut Window,
4113 cx: &mut App,
4114 ) -> impl IntoElement {
4115 render_buffer_header(
4116 &self.editor,
4117 for_excerpt,
4118 is_folded,
4119 is_selected,
4120 is_sticky,
4121 jump_data,
4122 window,
4123 cx,
4124 )
4125 }
4126
4127 fn render_blocks(
4128 &self,
4129 rows: Range<DisplayRow>,
4130 snapshot: &EditorSnapshot,
4131 hitbox: &Hitbox,
4132 text_hitbox: &Hitbox,
4133 editor_width: Pixels,
4134 scroll_width: &mut Pixels,
4135 editor_margins: &EditorMargins,
4136 em_width: Pixels,
4137 text_x: Pixels,
4138 line_height: Pixels,
4139 line_layouts: &mut [LineWithInvisibles],
4140 selections: &[Selection<Point>],
4141 selected_buffer_ids: &Vec<BufferId>,
4142 latest_selection_anchors: &HashMap<BufferId, Anchor>,
4143 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4144 sticky_header_excerpt_id: Option<ExcerptId>,
4145 window: &mut Window,
4146 cx: &mut App,
4147 ) -> RenderBlocksOutput {
4148 let (fixed_blocks, non_fixed_blocks) = snapshot
4149 .blocks_in_range(rows.clone())
4150 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
4151
4152 let mut focused_block = self
4153 .editor
4154 .update(cx, |editor, _| editor.take_focused_block());
4155 let mut fixed_block_max_width = Pixels::ZERO;
4156 let mut blocks = Vec::new();
4157 let mut resized_blocks = HashMap::default();
4158 let mut row_block_types = HashMap::default();
4159 let mut block_resize_offset: i32 = 0;
4160
4161 for (row, block) in fixed_blocks {
4162 let block_id = block.id();
4163
4164 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4165 focused_block = None;
4166 }
4167
4168 if let Some((element, element_size, row, x_offset)) = self.render_block(
4169 block,
4170 AvailableSpace::MinContent,
4171 block_id,
4172 row,
4173 snapshot,
4174 text_x,
4175 &rows,
4176 line_layouts,
4177 editor_margins,
4178 line_height,
4179 em_width,
4180 text_hitbox,
4181 editor_width,
4182 scroll_width,
4183 &mut resized_blocks,
4184 &mut row_block_types,
4185 selections,
4186 selected_buffer_ids,
4187 latest_selection_anchors,
4188 is_row_soft_wrapped,
4189 sticky_header_excerpt_id,
4190 &mut block_resize_offset,
4191 window,
4192 cx,
4193 ) {
4194 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
4195 blocks.push(BlockLayout {
4196 id: block_id,
4197 x_offset,
4198 row: Some(row),
4199 element,
4200 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
4201 style: BlockStyle::Fixed,
4202 overlaps_gutter: true,
4203 is_buffer_header: block.is_buffer_header(),
4204 });
4205 }
4206 }
4207
4208 for (row, block) in non_fixed_blocks {
4209 let style = block.style();
4210 let width = match (style, block.place_near()) {
4211 (_, true) => AvailableSpace::MinContent,
4212 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
4213 (BlockStyle::Flex, _) => hitbox
4214 .size
4215 .width
4216 .max(fixed_block_max_width)
4217 .max(editor_margins.gutter.width + *scroll_width)
4218 .into(),
4219 (BlockStyle::Fixed, _) => unreachable!(),
4220 };
4221 let block_id = block.id();
4222
4223 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4224 focused_block = None;
4225 }
4226
4227 if let Some((element, element_size, row, x_offset)) = self.render_block(
4228 block,
4229 width,
4230 block_id,
4231 row,
4232 snapshot,
4233 text_x,
4234 &rows,
4235 line_layouts,
4236 editor_margins,
4237 line_height,
4238 em_width,
4239 text_hitbox,
4240 editor_width,
4241 scroll_width,
4242 &mut resized_blocks,
4243 &mut row_block_types,
4244 selections,
4245 selected_buffer_ids,
4246 latest_selection_anchors,
4247 is_row_soft_wrapped,
4248 sticky_header_excerpt_id,
4249 &mut block_resize_offset,
4250 window,
4251 cx,
4252 ) {
4253 blocks.push(BlockLayout {
4254 id: block_id,
4255 x_offset,
4256 row: Some(row),
4257 element,
4258 available_space: size(width, element_size.height.into()),
4259 style,
4260 overlaps_gutter: !block.place_near(),
4261 is_buffer_header: block.is_buffer_header(),
4262 });
4263 }
4264 }
4265
4266 if let Some(focused_block) = focused_block
4267 && let Some(focus_handle) = focused_block.focus_handle.upgrade()
4268 && focus_handle.is_focused(window)
4269 && let Some(block) = snapshot.block_for_id(focused_block.id)
4270 {
4271 let style = block.style();
4272 let width = match style {
4273 BlockStyle::Fixed => AvailableSpace::MinContent,
4274 BlockStyle::Flex => AvailableSpace::Definite(
4275 hitbox
4276 .size
4277 .width
4278 .max(fixed_block_max_width)
4279 .max(editor_margins.gutter.width + *scroll_width),
4280 ),
4281 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
4282 };
4283
4284 if let Some((element, element_size, _, x_offset)) = self.render_block(
4285 &block,
4286 width,
4287 focused_block.id,
4288 rows.end,
4289 snapshot,
4290 text_x,
4291 &rows,
4292 line_layouts,
4293 editor_margins,
4294 line_height,
4295 em_width,
4296 text_hitbox,
4297 editor_width,
4298 scroll_width,
4299 &mut resized_blocks,
4300 &mut row_block_types,
4301 selections,
4302 selected_buffer_ids,
4303 latest_selection_anchors,
4304 is_row_soft_wrapped,
4305 sticky_header_excerpt_id,
4306 &mut block_resize_offset,
4307 window,
4308 cx,
4309 ) {
4310 blocks.push(BlockLayout {
4311 id: block.id(),
4312 x_offset,
4313 row: None,
4314 element,
4315 available_space: size(width, element_size.height.into()),
4316 style,
4317 overlaps_gutter: true,
4318 is_buffer_header: block.is_buffer_header(),
4319 });
4320 }
4321 }
4322
4323 if resized_blocks.is_empty() {
4324 *scroll_width =
4325 (*scroll_width).max(fixed_block_max_width - editor_margins.gutter.width);
4326 }
4327
4328 RenderBlocksOutput {
4329 blocks,
4330 row_block_types,
4331 resized_blocks: (!resized_blocks.is_empty()).then_some(resized_blocks),
4332 }
4333 }
4334
4335 fn layout_blocks(
4336 &self,
4337 blocks: &mut Vec<BlockLayout>,
4338 hitbox: &Hitbox,
4339 line_height: Pixels,
4340 scroll_position: gpui::Point<ScrollOffset>,
4341 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4342 window: &mut Window,
4343 cx: &mut App,
4344 ) {
4345 for block in blocks {
4346 let mut origin = if let Some(row) = block.row {
4347 hitbox.origin
4348 + point(
4349 block.x_offset,
4350 Pixels::from(
4351 (row.as_f64() - scroll_position.y)
4352 * ScrollPixelOffset::from(line_height),
4353 ),
4354 )
4355 } else {
4356 // Position the block outside the visible area
4357 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
4358 };
4359
4360 if !matches!(block.style, BlockStyle::Sticky) {
4361 origin += point(Pixels::from(-scroll_pixel_position.x), Pixels::ZERO);
4362 }
4363
4364 let focus_handle =
4365 block
4366 .element
4367 .prepaint_as_root(origin, block.available_space, window, cx);
4368
4369 if let Some(focus_handle) = focus_handle {
4370 self.editor.update(cx, |editor, _cx| {
4371 editor.set_focused_block(FocusedBlock {
4372 id: block.id,
4373 focus_handle: focus_handle.downgrade(),
4374 });
4375 });
4376 }
4377 }
4378 }
4379
4380 fn layout_sticky_buffer_header(
4381 &self,
4382 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
4383 scroll_position: gpui::Point<ScrollOffset>,
4384 line_height: Pixels,
4385 right_margin: Pixels,
4386 snapshot: &EditorSnapshot,
4387 hitbox: &Hitbox,
4388 selected_buffer_ids: &Vec<BufferId>,
4389 blocks: &[BlockLayout],
4390 latest_selection_anchors: &HashMap<BufferId, Anchor>,
4391 window: &mut Window,
4392 cx: &mut App,
4393 ) -> AnyElement {
4394 let jump_data = header_jump_data(
4395 snapshot,
4396 DisplayRow(scroll_position.y as u32),
4397 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
4398 excerpt,
4399 latest_selection_anchors,
4400 );
4401
4402 let editor_bg_color = cx.theme().colors().editor_background;
4403
4404 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
4405
4406 let available_width = hitbox.bounds.size.width - right_margin;
4407
4408 let mut header = v_flex()
4409 .w_full()
4410 .relative()
4411 .child(
4412 div()
4413 .w(available_width)
4414 .h(FILE_HEADER_HEIGHT as f32 * line_height)
4415 .bg(linear_gradient(
4416 0.,
4417 linear_color_stop(editor_bg_color.opacity(0.), 0.),
4418 linear_color_stop(editor_bg_color, 0.6),
4419 ))
4420 .absolute()
4421 .top_0(),
4422 )
4423 .child(
4424 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
4425 .into_any_element(),
4426 )
4427 .into_any_element();
4428
4429 let mut origin = hitbox.origin;
4430 // Move floating header up to avoid colliding with the next buffer header.
4431 for block in blocks.iter() {
4432 if !block.is_buffer_header {
4433 continue;
4434 }
4435
4436 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position.y as u32) else {
4437 continue;
4438 };
4439
4440 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
4441 let offset = scroll_position.y - max_row as f64;
4442
4443 if offset > 0.0 {
4444 origin.y -= Pixels::from(offset * ScrollPixelOffset::from(line_height));
4445 }
4446 break;
4447 }
4448
4449 let size = size(
4450 AvailableSpace::Definite(available_width),
4451 AvailableSpace::MinContent,
4452 );
4453
4454 header.prepaint_as_root(origin, size, window, cx);
4455
4456 header
4457 }
4458
4459 fn layout_sticky_headers(
4460 &self,
4461 snapshot: &EditorSnapshot,
4462 editor_width: Pixels,
4463 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4464 line_height: Pixels,
4465 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4466 content_origin: gpui::Point<Pixels>,
4467 gutter_dimensions: &GutterDimensions,
4468 gutter_hitbox: &Hitbox,
4469 text_hitbox: &Hitbox,
4470 relative_line_numbers: RelativeLineNumbers,
4471 relative_to: Option<DisplayRow>,
4472 window: &mut Window,
4473 cx: &mut App,
4474 ) -> Option<StickyHeaders> {
4475 let show_line_numbers = snapshot
4476 .show_line_numbers
4477 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
4478
4479 let rows = Self::sticky_headers(self.editor.read(cx), snapshot);
4480
4481 let mut lines = Vec::<StickyHeaderLine>::new();
4482
4483 for StickyHeader {
4484 item,
4485 sticky_row,
4486 start_point,
4487 offset,
4488 } in rows.into_iter().rev()
4489 {
4490 let line = layout_line(
4491 sticky_row,
4492 snapshot,
4493 &self.style,
4494 editor_width,
4495 is_row_soft_wrapped,
4496 window,
4497 cx,
4498 );
4499
4500 let line_number = show_line_numbers.then(|| {
4501 let start_display_row = start_point.to_display_point(snapshot).row();
4502 let relative_number = relative_to
4503 .filter(|_| relative_line_numbers != RelativeLineNumbers::Disabled)
4504 .map(|base| {
4505 snapshot.relative_line_delta(
4506 base,
4507 start_display_row,
4508 relative_line_numbers == RelativeLineNumbers::Wrapped,
4509 )
4510 });
4511 let number = relative_number
4512 .filter(|&delta| delta != 0)
4513 .map(|delta| delta.unsigned_abs() as u32)
4514 .unwrap_or(start_point.row + 1);
4515 let color = cx.theme().colors().editor_line_number;
4516 self.shape_line_number(SharedString::from(number.to_string()), color, window)
4517 });
4518
4519 lines.push(StickyHeaderLine::new(
4520 sticky_row,
4521 line_height * offset as f32,
4522 line,
4523 line_number,
4524 item.range.start,
4525 line_height,
4526 scroll_pixel_position,
4527 content_origin,
4528 gutter_hitbox,
4529 text_hitbox,
4530 window,
4531 cx,
4532 ));
4533 }
4534
4535 lines.reverse();
4536 if lines.is_empty() {
4537 return None;
4538 }
4539
4540 Some(StickyHeaders {
4541 lines,
4542 gutter_background: cx.theme().colors().editor_gutter_background,
4543 content_background: self.style.background,
4544 gutter_right_padding: gutter_dimensions.right_padding,
4545 })
4546 }
4547
4548 pub(crate) fn sticky_headers(editor: &Editor, snapshot: &EditorSnapshot) -> Vec<StickyHeader> {
4549 let scroll_top = snapshot.scroll_position().y;
4550
4551 let mut end_rows = Vec::<DisplayRow>::new();
4552 let mut rows = Vec::<StickyHeader>::new();
4553
4554 for item in editor.sticky_headers.iter().flatten() {
4555 let start_point = item.range.start.to_point(snapshot.buffer_snapshot());
4556 let end_point = item.range.end.to_point(snapshot.buffer_snapshot());
4557
4558 let sticky_row = snapshot
4559 .display_snapshot
4560 .point_to_display_point(start_point, Bias::Left)
4561 .row();
4562 let end_row = snapshot
4563 .display_snapshot
4564 .point_to_display_point(end_point, Bias::Left)
4565 .row();
4566 let max_sticky_row = end_row.previous_row();
4567 if max_sticky_row <= sticky_row {
4568 continue;
4569 }
4570
4571 while end_rows
4572 .last()
4573 .is_some_and(|&last_end| last_end <= sticky_row)
4574 {
4575 end_rows.pop();
4576 }
4577 let depth = end_rows.len();
4578 let adjusted_scroll_top = scroll_top + depth as f64;
4579
4580 if sticky_row.as_f64() >= adjusted_scroll_top || end_row.as_f64() <= adjusted_scroll_top
4581 {
4582 continue;
4583 }
4584
4585 let max_scroll_offset = max_sticky_row.as_f64() - scroll_top;
4586 let offset = (depth as f64).min(max_scroll_offset);
4587
4588 end_rows.push(end_row);
4589 rows.push(StickyHeader {
4590 item: item.clone(),
4591 sticky_row,
4592 start_point,
4593 offset,
4594 });
4595 }
4596
4597 rows
4598 }
4599
4600 fn layout_cursor_popovers(
4601 &self,
4602 line_height: Pixels,
4603 text_hitbox: &Hitbox,
4604 content_origin: gpui::Point<Pixels>,
4605 right_margin: Pixels,
4606 start_row: DisplayRow,
4607 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4608 line_layouts: &[LineWithInvisibles],
4609 cursor: DisplayPoint,
4610 cursor_point: Point,
4611 style: &EditorStyle,
4612 window: &mut Window,
4613 cx: &mut App,
4614 ) -> Option<ContextMenuLayout> {
4615 let mut min_menu_height = Pixels::ZERO;
4616 let mut max_menu_height = Pixels::ZERO;
4617 let mut height_above_menu = Pixels::ZERO;
4618 let height_below_menu = Pixels::ZERO;
4619 let mut edit_prediction_popover_visible = false;
4620 let mut context_menu_visible = false;
4621 let context_menu_placement;
4622
4623 {
4624 let editor = self.editor.read(cx);
4625 if editor.edit_prediction_visible_in_cursor_popover(editor.has_active_edit_prediction())
4626 {
4627 height_above_menu +=
4628 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
4629 edit_prediction_popover_visible = true;
4630 }
4631
4632 if editor.context_menu_visible()
4633 && let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin()
4634 {
4635 let (min_height_in_lines, max_height_in_lines) = editor
4636 .context_menu_options
4637 .as_ref()
4638 .map_or((3, 12), |options| {
4639 (options.min_entries_visible, options.max_entries_visible)
4640 });
4641
4642 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4643 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4644 context_menu_visible = true;
4645 }
4646 context_menu_placement = editor
4647 .context_menu_options
4648 .as_ref()
4649 .and_then(|options| options.placement.clone());
4650 }
4651
4652 let visible = edit_prediction_popover_visible || context_menu_visible;
4653 if !visible {
4654 return None;
4655 }
4656
4657 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
4658 let target_position = content_origin
4659 + gpui::Point {
4660 x: cmp::max(
4661 px(0.),
4662 Pixels::from(
4663 ScrollPixelOffset::from(
4664 cursor_row_layout.x_for_index(cursor.column() as usize),
4665 ) - scroll_pixel_position.x,
4666 ),
4667 ),
4668 y: cmp::max(
4669 px(0.),
4670 Pixels::from(
4671 cursor.row().next_row().as_f64() * ScrollPixelOffset::from(line_height)
4672 - scroll_pixel_position.y,
4673 ),
4674 ),
4675 };
4676
4677 let viewport_bounds =
4678 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4679 right: -right_margin - MENU_GAP,
4680 ..Default::default()
4681 });
4682
4683 let min_height = height_above_menu + min_menu_height + height_below_menu;
4684 let max_height = height_above_menu + max_menu_height + height_below_menu;
4685 let (laid_out_popovers, y_flipped) = self.layout_popovers_above_or_below_line(
4686 target_position,
4687 line_height,
4688 min_height,
4689 max_height,
4690 context_menu_placement,
4691 text_hitbox,
4692 viewport_bounds,
4693 window,
4694 cx,
4695 |height, max_width_for_stable_x, y_flipped, window, cx| {
4696 // First layout the menu to get its size - others can be at least this wide.
4697 let context_menu = if context_menu_visible {
4698 let menu_height = if y_flipped {
4699 height - height_below_menu
4700 } else {
4701 height - height_above_menu
4702 };
4703 let mut element = self
4704 .render_context_menu(line_height, menu_height, window, cx)
4705 .expect("Visible context menu should always render.");
4706 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4707 Some((CursorPopoverType::CodeContextMenu, element, size))
4708 } else {
4709 None
4710 };
4711 let min_width = context_menu
4712 .as_ref()
4713 .map_or(px(0.), |(_, _, size)| size.width);
4714 let max_width = max_width_for_stable_x.max(
4715 context_menu
4716 .as_ref()
4717 .map_or(px(0.), |(_, _, size)| size.width),
4718 );
4719
4720 let edit_prediction = if edit_prediction_popover_visible {
4721 self.editor.update(cx, move |editor, cx| {
4722 let accept_binding = editor.accept_edit_prediction_keybind(
4723 EditPredictionGranularity::Full,
4724 window,
4725 cx,
4726 );
4727 let mut element = editor.render_edit_prediction_cursor_popover(
4728 min_width,
4729 max_width,
4730 cursor_point,
4731 style,
4732 accept_binding.keystroke(),
4733 window,
4734 cx,
4735 )?;
4736 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4737 Some((CursorPopoverType::EditPrediction, element, size))
4738 })
4739 } else {
4740 None
4741 };
4742 vec![edit_prediction, context_menu]
4743 .into_iter()
4744 .flatten()
4745 .collect::<Vec<_>>()
4746 },
4747 )?;
4748
4749 let (menu_ix, (_, menu_bounds)) = laid_out_popovers
4750 .iter()
4751 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))?;
4752 let last_ix = laid_out_popovers.len() - 1;
4753 let menu_is_last = menu_ix == last_ix;
4754 let first_popover_bounds = laid_out_popovers[0].1;
4755 let last_popover_bounds = laid_out_popovers[last_ix].1;
4756
4757 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
4758 // right, and otherwise it goes below or to the right.
4759 let mut target_bounds = Bounds::from_corners(
4760 first_popover_bounds.origin,
4761 last_popover_bounds.bottom_right(),
4762 );
4763 target_bounds.size.width = menu_bounds.size.width;
4764
4765 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
4766 // based on this is preferred for layout stability.
4767 let mut max_target_bounds = target_bounds;
4768 max_target_bounds.size.height = max_height;
4769 if y_flipped {
4770 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
4771 }
4772
4773 // Add spacing around `target_bounds` and `max_target_bounds`.
4774 let mut extend_amount = Edges::all(MENU_GAP);
4775 if y_flipped {
4776 extend_amount.bottom = line_height;
4777 } else {
4778 extend_amount.top = line_height;
4779 }
4780 let target_bounds = target_bounds.extend(extend_amount);
4781 let max_target_bounds = max_target_bounds.extend(extend_amount);
4782
4783 let must_place_above_or_below =
4784 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
4785 laid_out_popovers[menu_ix + 1..]
4786 .iter()
4787 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
4788 } else {
4789 false
4790 };
4791
4792 let aside_bounds = self.layout_context_menu_aside(
4793 y_flipped,
4794 *menu_bounds,
4795 target_bounds,
4796 max_target_bounds,
4797 max_menu_height,
4798 must_place_above_or_below,
4799 text_hitbox,
4800 viewport_bounds,
4801 window,
4802 cx,
4803 );
4804
4805 if let Some(menu_bounds) = laid_out_popovers.iter().find_map(|(popover_type, bounds)| {
4806 if matches!(popover_type, CursorPopoverType::CodeContextMenu) {
4807 Some(*bounds)
4808 } else {
4809 None
4810 }
4811 }) {
4812 let bounds = if let Some(aside_bounds) = aside_bounds {
4813 menu_bounds.union(&aside_bounds)
4814 } else {
4815 menu_bounds
4816 };
4817 return Some(ContextMenuLayout { y_flipped, bounds });
4818 }
4819
4820 None
4821 }
4822
4823 fn layout_gutter_menu(
4824 &self,
4825 line_height: Pixels,
4826 text_hitbox: &Hitbox,
4827 content_origin: gpui::Point<Pixels>,
4828 right_margin: Pixels,
4829 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4830 gutter_overshoot: Pixels,
4831 window: &mut Window,
4832 cx: &mut App,
4833 ) {
4834 let editor = self.editor.read(cx);
4835 if !editor.context_menu_visible() {
4836 return;
4837 }
4838 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
4839 editor.context_menu_origin()
4840 else {
4841 return;
4842 };
4843 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
4844 // indicator than just a plain first column of the text field.
4845 let target_position = content_origin
4846 + gpui::Point {
4847 x: -gutter_overshoot,
4848 y: Pixels::from(
4849 gutter_row.next_row().as_f64() * ScrollPixelOffset::from(line_height)
4850 - scroll_pixel_position.y,
4851 ),
4852 };
4853
4854 let (min_height_in_lines, max_height_in_lines) = editor
4855 .context_menu_options
4856 .as_ref()
4857 .map_or((3, 12), |options| {
4858 (options.min_entries_visible, options.max_entries_visible)
4859 });
4860
4861 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4862 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4863 let viewport_bounds =
4864 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4865 right: -right_margin - MENU_GAP,
4866 ..Default::default()
4867 });
4868 self.layout_popovers_above_or_below_line(
4869 target_position,
4870 line_height,
4871 min_height,
4872 max_height,
4873 editor
4874 .context_menu_options
4875 .as_ref()
4876 .and_then(|options| options.placement.clone()),
4877 text_hitbox,
4878 viewport_bounds,
4879 window,
4880 cx,
4881 move |height, _max_width_for_stable_x, _, window, cx| {
4882 let mut element = self
4883 .render_context_menu(line_height, height, window, cx)
4884 .expect("Visible context menu should always render.");
4885 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4886 vec![(CursorPopoverType::CodeContextMenu, element, size)]
4887 },
4888 );
4889 }
4890
4891 fn layout_popovers_above_or_below_line(
4892 &self,
4893 target_position: gpui::Point<Pixels>,
4894 line_height: Pixels,
4895 min_height: Pixels,
4896 max_height: Pixels,
4897 placement: Option<ContextMenuPlacement>,
4898 text_hitbox: &Hitbox,
4899 viewport_bounds: Bounds<Pixels>,
4900 window: &mut Window,
4901 cx: &mut App,
4902 make_sized_popovers: impl FnOnce(
4903 Pixels,
4904 Pixels,
4905 bool,
4906 &mut Window,
4907 &mut App,
4908 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
4909 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
4910 let text_style = TextStyleRefinement {
4911 line_height: Some(DefiniteLength::Fraction(
4912 BufferLineHeight::Comfortable.value(),
4913 )),
4914 ..Default::default()
4915 };
4916 window.with_text_style(Some(text_style), |window| {
4917 // If the max height won't fit below and there is more space above, put it above the line.
4918 let bottom_y_when_flipped = target_position.y - line_height;
4919 let available_above = bottom_y_when_flipped - text_hitbox.top();
4920 let available_below = text_hitbox.bottom() - target_position.y;
4921 let y_overflows_below = max_height > available_below;
4922 let mut y_flipped = match placement {
4923 Some(ContextMenuPlacement::Above) => true,
4924 Some(ContextMenuPlacement::Below) => false,
4925 None => y_overflows_below && available_above > available_below,
4926 };
4927 let mut height = cmp::min(
4928 max_height,
4929 if y_flipped {
4930 available_above
4931 } else {
4932 available_below
4933 },
4934 );
4935
4936 // If the min height doesn't fit within text bounds, instead fit within the window.
4937 if height < min_height {
4938 let available_above = bottom_y_when_flipped;
4939 let available_below = viewport_bounds.bottom() - target_position.y;
4940 let (y_flipped_override, height_override) = match placement {
4941 Some(ContextMenuPlacement::Above) => {
4942 (true, cmp::min(available_above, min_height))
4943 }
4944 Some(ContextMenuPlacement::Below) => {
4945 (false, cmp::min(available_below, min_height))
4946 }
4947 None => {
4948 if available_below > min_height {
4949 (false, min_height)
4950 } else if available_above > min_height {
4951 (true, min_height)
4952 } else if available_above > available_below {
4953 (true, available_above)
4954 } else {
4955 (false, available_below)
4956 }
4957 }
4958 };
4959 y_flipped = y_flipped_override;
4960 height = height_override;
4961 }
4962
4963 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
4964
4965 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
4966 // for very narrow windows.
4967 let popovers =
4968 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
4969 if popovers.is_empty() {
4970 return None;
4971 }
4972
4973 let max_width = popovers
4974 .iter()
4975 .map(|(_, _, size)| size.width)
4976 .max()
4977 .unwrap_or_default();
4978
4979 let mut current_position = gpui::Point {
4980 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
4981 // overflow. Include space for the scrollbar.
4982 x: target_position
4983 .x
4984 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
4985 y: if y_flipped {
4986 bottom_y_when_flipped
4987 } else {
4988 target_position.y
4989 },
4990 };
4991
4992 let mut laid_out_popovers = popovers
4993 .into_iter()
4994 .map(|(popover_type, element, size)| {
4995 if y_flipped {
4996 current_position.y -= size.height;
4997 }
4998 let position = current_position;
4999 window.defer_draw(element, current_position, 1);
5000 if !y_flipped {
5001 current_position.y += size.height + MENU_GAP;
5002 } else {
5003 current_position.y -= MENU_GAP;
5004 }
5005 (popover_type, Bounds::new(position, size))
5006 })
5007 .collect::<Vec<_>>();
5008
5009 if y_flipped {
5010 laid_out_popovers.reverse();
5011 }
5012
5013 Some((laid_out_popovers, y_flipped))
5014 })
5015 }
5016
5017 fn layout_context_menu_aside(
5018 &self,
5019 y_flipped: bool,
5020 menu_bounds: Bounds<Pixels>,
5021 target_bounds: Bounds<Pixels>,
5022 max_target_bounds: Bounds<Pixels>,
5023 max_height: Pixels,
5024 must_place_above_or_below: bool,
5025 text_hitbox: &Hitbox,
5026 viewport_bounds: Bounds<Pixels>,
5027 window: &mut Window,
5028 cx: &mut App,
5029 ) -> Option<Bounds<Pixels>> {
5030 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
5031 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
5032 && !must_place_above_or_below
5033 {
5034 let max_width = cmp::min(
5035 available_within_viewport.right - px(1.),
5036 MENU_ASIDE_MAX_WIDTH,
5037 );
5038 let mut aside = self.render_context_menu_aside(
5039 size(max_width, max_height - POPOVER_Y_PADDING),
5040 window,
5041 cx,
5042 )?;
5043 let size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5044 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
5045 Some((aside, right_position, size))
5046 } else {
5047 let max_size = size(
5048 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
5049 // won't be needed here.
5050 cmp::min(
5051 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
5052 viewport_bounds.right(),
5053 ),
5054 cmp::min(
5055 max_height,
5056 cmp::max(
5057 available_within_viewport.top,
5058 available_within_viewport.bottom,
5059 ),
5060 ) - POPOVER_Y_PADDING,
5061 );
5062 let mut aside = self.render_context_menu_aside(max_size, window, cx)?;
5063 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5064
5065 let top_position = point(
5066 menu_bounds.origin.x,
5067 target_bounds.top() - actual_size.height,
5068 );
5069 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
5070
5071 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
5072 // Prefer to fit on the same side of the line as the menu, then on the other side of
5073 // the line.
5074 if !y_flipped && wanted.height < available.bottom {
5075 Some(bottom_position)
5076 } else if !y_flipped && wanted.height < available.top {
5077 Some(top_position)
5078 } else if y_flipped && wanted.height < available.top {
5079 Some(top_position)
5080 } else if y_flipped && wanted.height < available.bottom {
5081 Some(bottom_position)
5082 } else {
5083 None
5084 }
5085 };
5086
5087 // Prefer choosing a direction using max sizes rather than actual size for stability.
5088 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
5089 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
5090 let aside_position = fit_within(available_within_text, wanted)
5091 // Fallback: fit max size in window.
5092 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
5093 // Fallback: fit actual size in window.
5094 .or_else(|| fit_within(available_within_viewport, actual_size));
5095
5096 aside_position.map(|position| (aside, position, actual_size))
5097 };
5098
5099 // Skip drawing if it doesn't fit anywhere.
5100 if let Some((aside, position, size)) = positioned_aside {
5101 let aside_bounds = Bounds::new(position, size);
5102 window.defer_draw(aside, position, 2);
5103 return Some(aside_bounds);
5104 }
5105
5106 None
5107 }
5108
5109 fn render_context_menu(
5110 &self,
5111 line_height: Pixels,
5112 height: Pixels,
5113 window: &mut Window,
5114 cx: &mut App,
5115 ) -> Option<AnyElement> {
5116 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
5117 self.editor.update(cx, |editor, cx| {
5118 editor.render_context_menu(max_height_in_lines, window, cx)
5119 })
5120 }
5121
5122 fn render_context_menu_aside(
5123 &self,
5124 max_size: Size<Pixels>,
5125 window: &mut Window,
5126 cx: &mut App,
5127 ) -> Option<AnyElement> {
5128 if max_size.width < px(100.) || max_size.height < px(12.) {
5129 None
5130 } else {
5131 self.editor.update(cx, |editor, cx| {
5132 editor.render_context_menu_aside(max_size, window, cx)
5133 })
5134 }
5135 }
5136
5137 fn layout_mouse_context_menu(
5138 &self,
5139 editor_snapshot: &EditorSnapshot,
5140 visible_range: Range<DisplayRow>,
5141 content_origin: gpui::Point<Pixels>,
5142 window: &mut Window,
5143 cx: &mut App,
5144 ) -> Option<AnyElement> {
5145 let position = self.editor.update(cx, |editor, cx| {
5146 let visible_start_point = editor.display_to_pixel_point(
5147 DisplayPoint::new(visible_range.start, 0),
5148 editor_snapshot,
5149 window,
5150 cx,
5151 )?;
5152 let visible_end_point = editor.display_to_pixel_point(
5153 DisplayPoint::new(visible_range.end, 0),
5154 editor_snapshot,
5155 window,
5156 cx,
5157 )?;
5158
5159 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5160 let (source_display_point, position) = match mouse_context_menu.position {
5161 MenuPosition::PinnedToScreen(point) => (None, point),
5162 MenuPosition::PinnedToEditor { source, offset } => {
5163 let source_display_point = source.to_display_point(editor_snapshot);
5164 let source_point =
5165 editor.to_pixel_point(source, editor_snapshot, window, cx)?;
5166 let position = content_origin + source_point + offset;
5167 (Some(source_display_point), position)
5168 }
5169 };
5170
5171 let source_included = source_display_point.is_none_or(|source_display_point| {
5172 visible_range
5173 .to_inclusive()
5174 .contains(&source_display_point.row())
5175 });
5176 let position_included =
5177 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
5178 if !source_included && !position_included {
5179 None
5180 } else {
5181 Some(position)
5182 }
5183 })?;
5184
5185 let text_style = TextStyleRefinement {
5186 line_height: Some(DefiniteLength::Fraction(
5187 BufferLineHeight::Comfortable.value(),
5188 )),
5189 ..Default::default()
5190 };
5191 window.with_text_style(Some(text_style), |window| {
5192 let mut element = self.editor.read_with(cx, |editor, _| {
5193 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5194 let context_menu = mouse_context_menu.context_menu.clone();
5195
5196 Some(
5197 deferred(
5198 anchored()
5199 .position(position)
5200 .child(context_menu)
5201 .anchor(Corner::TopLeft)
5202 .snap_to_window_with_margin(px(8.)),
5203 )
5204 .with_priority(1)
5205 .into_any(),
5206 )
5207 })?;
5208
5209 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
5210 Some(element)
5211 })
5212 }
5213
5214 fn layout_hover_popovers(
5215 &self,
5216 snapshot: &EditorSnapshot,
5217 hitbox: &Hitbox,
5218 visible_display_row_range: Range<DisplayRow>,
5219 content_origin: gpui::Point<Pixels>,
5220 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5221 line_layouts: &[LineWithInvisibles],
5222 line_height: Pixels,
5223 em_width: Pixels,
5224 context_menu_layout: Option<ContextMenuLayout>,
5225 window: &mut Window,
5226 cx: &mut App,
5227 ) {
5228 struct MeasuredHoverPopover {
5229 element: AnyElement,
5230 size: Size<Pixels>,
5231 horizontal_offset: Pixels,
5232 }
5233
5234 let max_size = size(
5235 (120. * em_width) // Default size
5236 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5237 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5238 (16. * line_height) // Default size
5239 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5240 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5241 );
5242
5243 // Don't show hover popovers when context menu is open to avoid overlap
5244 let has_context_menu = self.editor.read(cx).mouse_context_menu.is_some();
5245 if has_context_menu {
5246 return;
5247 }
5248
5249 let hover_popovers = self.editor.update(cx, |editor, cx| {
5250 editor.hover_state.render(
5251 snapshot,
5252 visible_display_row_range.clone(),
5253 max_size,
5254 &editor.text_layout_details(window, cx),
5255 window,
5256 cx,
5257 )
5258 });
5259 let Some((popover_position, hover_popovers)) = hover_popovers else {
5260 return;
5261 };
5262
5263 // This is safe because we check on layout whether the required row is available
5264 let hovered_row_layout = &line_layouts[popover_position
5265 .row()
5266 .minus(visible_display_row_range.start)
5267 as usize];
5268
5269 // Compute Hovered Point
5270 let x = hovered_row_layout.x_for_index(popover_position.column() as usize)
5271 - Pixels::from(scroll_pixel_position.x);
5272 let y = Pixels::from(
5273 popover_position.row().as_f64() * ScrollPixelOffset::from(line_height)
5274 - scroll_pixel_position.y,
5275 );
5276 let hovered_point = content_origin + point(x, y);
5277
5278 let mut overall_height = Pixels::ZERO;
5279 let mut measured_hover_popovers = Vec::new();
5280 for (position, mut hover_popover) in hover_popovers.into_iter().with_position() {
5281 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
5282 let horizontal_offset =
5283 (hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
5284 .min(Pixels::ZERO);
5285 match position {
5286 itertools::Position::Middle | itertools::Position::Last => {
5287 overall_height += HOVER_POPOVER_GAP
5288 }
5289 _ => {}
5290 }
5291 overall_height += size.height;
5292 measured_hover_popovers.push(MeasuredHoverPopover {
5293 element: hover_popover,
5294 size,
5295 horizontal_offset,
5296 });
5297 }
5298
5299 fn draw_occluder(
5300 width: Pixels,
5301 origin: gpui::Point<Pixels>,
5302 window: &mut Window,
5303 cx: &mut App,
5304 ) {
5305 let mut occlusion = div()
5306 .size_full()
5307 .occlude()
5308 .on_mouse_move(|_, _, cx| cx.stop_propagation())
5309 .into_any_element();
5310 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
5311 window.defer_draw(occlusion, origin, 2);
5312 }
5313
5314 fn place_popovers_above(
5315 hovered_point: gpui::Point<Pixels>,
5316 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5317 window: &mut Window,
5318 cx: &mut App,
5319 ) {
5320 let mut current_y = hovered_point.y;
5321 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5322 let size = popover.size;
5323 let popover_origin = point(
5324 hovered_point.x + popover.horizontal_offset,
5325 current_y - size.height,
5326 );
5327
5328 window.defer_draw(popover.element, popover_origin, 2);
5329 if position != itertools::Position::Last {
5330 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
5331 draw_occluder(size.width, origin, window, cx);
5332 }
5333
5334 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5335 }
5336 }
5337
5338 fn place_popovers_below(
5339 hovered_point: gpui::Point<Pixels>,
5340 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5341 line_height: Pixels,
5342 window: &mut Window,
5343 cx: &mut App,
5344 ) {
5345 let mut current_y = hovered_point.y + line_height;
5346 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5347 let size = popover.size;
5348 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5349
5350 window.defer_draw(popover.element, popover_origin, 2);
5351 if position != itertools::Position::Last {
5352 let origin = point(popover_origin.x, popover_origin.y + size.height);
5353 draw_occluder(size.width, origin, window, cx);
5354 }
5355
5356 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5357 }
5358 }
5359
5360 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5361 context_menu_layout
5362 .as_ref()
5363 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5364 };
5365
5366 let can_place_above = {
5367 let mut bounds_above = Vec::new();
5368 let mut current_y = hovered_point.y;
5369 for popover in &measured_hover_popovers {
5370 let size = popover.size;
5371 let popover_origin = point(
5372 hovered_point.x + popover.horizontal_offset,
5373 current_y - size.height,
5374 );
5375 bounds_above.push(Bounds::new(popover_origin, size));
5376 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5377 }
5378 bounds_above
5379 .iter()
5380 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5381 };
5382
5383 let can_place_below = || {
5384 let mut bounds_below = Vec::new();
5385 let mut current_y = hovered_point.y + line_height;
5386 for popover in &measured_hover_popovers {
5387 let size = popover.size;
5388 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5389 bounds_below.push(Bounds::new(popover_origin, size));
5390 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5391 }
5392 bounds_below
5393 .iter()
5394 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5395 };
5396
5397 if can_place_above {
5398 // try placing above hovered point
5399 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5400 } else if can_place_below() {
5401 // try placing below hovered point
5402 place_popovers_below(
5403 hovered_point,
5404 measured_hover_popovers,
5405 line_height,
5406 window,
5407 cx,
5408 );
5409 } else {
5410 // try to place popovers around the context menu
5411 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5412 let total_width = measured_hover_popovers
5413 .iter()
5414 .map(|p| p.size.width)
5415 .max()
5416 .unwrap_or(Pixels::ZERO);
5417 let y_for_horizontal_positioning = if menu.y_flipped {
5418 menu.bounds.bottom() - overall_height
5419 } else {
5420 menu.bounds.top()
5421 };
5422 let possible_origins = vec![
5423 // left of context menu
5424 point(
5425 menu.bounds.left() - total_width - HOVER_POPOVER_GAP,
5426 y_for_horizontal_positioning,
5427 ),
5428 // right of context menu
5429 point(
5430 menu.bounds.right() + HOVER_POPOVER_GAP,
5431 y_for_horizontal_positioning,
5432 ),
5433 // top of context menu
5434 point(
5435 menu.bounds.left(),
5436 menu.bounds.top() - overall_height - HOVER_POPOVER_GAP,
5437 ),
5438 // bottom of context menu
5439 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5440 ];
5441 possible_origins.into_iter().find(|&origin| {
5442 Bounds::new(origin, size(total_width, overall_height))
5443 .is_contained_within(hitbox)
5444 })
5445 });
5446 if let Some(origin) = origin_surrounding_menu {
5447 let mut current_y = origin.y;
5448 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5449 let size = popover.size;
5450 let popover_origin = point(origin.x, current_y);
5451
5452 window.defer_draw(popover.element, popover_origin, 2);
5453 if position != itertools::Position::Last {
5454 let origin = point(popover_origin.x, popover_origin.y + size.height);
5455 draw_occluder(size.width, origin, window, cx);
5456 }
5457
5458 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5459 }
5460 } else {
5461 // fallback to existing above/below cursor logic
5462 // this might overlap menu or overflow in rare case
5463 if can_place_above {
5464 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5465 } else {
5466 place_popovers_below(
5467 hovered_point,
5468 measured_hover_popovers,
5469 line_height,
5470 window,
5471 cx,
5472 );
5473 }
5474 }
5475 }
5476 }
5477
5478 fn layout_word_diff_highlights(
5479 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5480 row_infos: &[RowInfo],
5481 start_row: DisplayRow,
5482 snapshot: &EditorSnapshot,
5483 highlighted_ranges: &mut Vec<(Range<DisplayPoint>, Hsla)>,
5484 cx: &mut App,
5485 ) {
5486 let colors = cx.theme().colors();
5487
5488 let word_highlights = display_hunks
5489 .into_iter()
5490 .filter_map(|(hunk, _)| match hunk {
5491 DisplayDiffHunk::Unfolded {
5492 word_diffs, status, ..
5493 } => Some((word_diffs, status)),
5494 _ => None,
5495 })
5496 .filter(|(_, status)| status.is_modified())
5497 .flat_map(|(word_diffs, _)| word_diffs)
5498 .filter_map(|word_diff| {
5499 let start_point = word_diff.start.to_display_point(&snapshot.display_snapshot);
5500 let end_point = word_diff.end.to_display_point(&snapshot.display_snapshot);
5501 let start_row_offset = start_point.row().0.saturating_sub(start_row.0) as usize;
5502
5503 row_infos
5504 .get(start_row_offset)
5505 .and_then(|row_info| row_info.diff_status)
5506 .and_then(|diff_status| {
5507 let background_color = match diff_status.kind {
5508 DiffHunkStatusKind::Added => colors.version_control_word_added,
5509 DiffHunkStatusKind::Deleted => colors.version_control_word_deleted,
5510 DiffHunkStatusKind::Modified => {
5511 debug_panic!("modified diff status for row info");
5512 return None;
5513 }
5514 };
5515 Some((start_point..end_point, background_color))
5516 })
5517 });
5518
5519 highlighted_ranges.extend(word_highlights);
5520 }
5521
5522 fn layout_diff_hunk_controls(
5523 &self,
5524 row_range: Range<DisplayRow>,
5525 row_infos: &[RowInfo],
5526 text_hitbox: &Hitbox,
5527 newest_cursor_position: Option<DisplayPoint>,
5528 line_height: Pixels,
5529 right_margin: Pixels,
5530 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5531 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5532 highlighted_rows: &BTreeMap<DisplayRow, LineHighlight>,
5533 editor: Entity<Editor>,
5534 window: &mut Window,
5535 cx: &mut App,
5536 ) -> (Vec<AnyElement>, Vec<(DisplayRow, Bounds<Pixels>)>) {
5537 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
5538 let hovered_diff_hunk_row = editor.read(cx).hovered_diff_hunk_row;
5539
5540 let mut controls = vec![];
5541 let mut control_bounds = vec![];
5542
5543 let active_positions = [
5544 hovered_diff_hunk_row.map(|row| DisplayPoint::new(row, 0)),
5545 newest_cursor_position,
5546 ];
5547
5548 for (hunk, _) in display_hunks {
5549 if let DisplayDiffHunk::Unfolded {
5550 display_row_range,
5551 multi_buffer_range,
5552 status,
5553 is_created_file,
5554 ..
5555 } = &hunk
5556 {
5557 if display_row_range.start < row_range.start
5558 || display_row_range.start >= row_range.end
5559 {
5560 continue;
5561 }
5562 if highlighted_rows
5563 .get(&display_row_range.start)
5564 .and_then(|highlight| highlight.type_id)
5565 .is_some_and(|type_id| {
5566 [
5567 TypeId::of::<ConflictsOuter>(),
5568 TypeId::of::<ConflictsOursMarker>(),
5569 TypeId::of::<ConflictsOurs>(),
5570 TypeId::of::<ConflictsTheirs>(),
5571 TypeId::of::<ConflictsTheirsMarker>(),
5572 ]
5573 .contains(&type_id)
5574 })
5575 {
5576 continue;
5577 }
5578 let row_ix = (display_row_range.start - row_range.start).0 as usize;
5579 if row_infos[row_ix].diff_status.is_none() {
5580 continue;
5581 }
5582
5583 if active_positions
5584 .iter()
5585 .any(|p| p.is_some_and(|p| display_row_range.contains(&p.row())))
5586 {
5587 let y = (display_row_range.start.as_f64()
5588 * ScrollPixelOffset::from(line_height)
5589 + ScrollPixelOffset::from(text_hitbox.bounds.top())
5590 - scroll_pixel_position.y)
5591 .into();
5592
5593 let mut element = render_diff_hunk_controls(
5594 display_row_range.start.0,
5595 status,
5596 multi_buffer_range.clone(),
5597 *is_created_file,
5598 line_height,
5599 &editor,
5600 window,
5601 cx,
5602 );
5603 let size =
5604 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
5605
5606 let x = text_hitbox.bounds.right() - right_margin - px(10.) - size.width;
5607
5608 if x < text_hitbox.bounds.left() {
5609 continue;
5610 }
5611
5612 let bounds = Bounds::new(gpui::Point::new(x, y), size);
5613 control_bounds.push((display_row_range.start, bounds));
5614
5615 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
5616 element.prepaint(window, cx)
5617 });
5618 controls.push(element);
5619 }
5620 }
5621 }
5622
5623 (controls, control_bounds)
5624 }
5625
5626 fn layout_signature_help(
5627 &self,
5628 hitbox: &Hitbox,
5629 content_origin: gpui::Point<Pixels>,
5630 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5631 newest_selection_head: Option<DisplayPoint>,
5632 start_row: DisplayRow,
5633 line_layouts: &[LineWithInvisibles],
5634 line_height: Pixels,
5635 em_width: Pixels,
5636 context_menu_layout: Option<ContextMenuLayout>,
5637 window: &mut Window,
5638 cx: &mut App,
5639 ) {
5640 if !self.editor.focus_handle(cx).is_focused(window) {
5641 return;
5642 }
5643 let Some(newest_selection_head) = newest_selection_head else {
5644 return;
5645 };
5646
5647 let max_size = size(
5648 (120. * em_width) // Default size
5649 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5650 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5651 (16. * line_height) // Default size
5652 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5653 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5654 );
5655
5656 let maybe_element = self.editor.update(cx, |editor, cx| {
5657 if let Some(popover) = editor.signature_help_state.popover_mut() {
5658 let element = popover.render(max_size, window, cx);
5659 Some(element)
5660 } else {
5661 None
5662 }
5663 });
5664 let Some(mut element) = maybe_element else {
5665 return;
5666 };
5667
5668 let selection_row = newest_selection_head.row();
5669 let Some(cursor_row_layout) = (selection_row >= start_row)
5670 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
5671 .flatten()
5672 else {
5673 return;
5674 };
5675
5676 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
5677 - Pixels::from(scroll_pixel_position.x);
5678 let target_y = Pixels::from(
5679 selection_row.as_f64() * ScrollPixelOffset::from(line_height) - scroll_pixel_position.y,
5680 );
5681 let target_point = content_origin + point(target_x, target_y);
5682
5683 let actual_size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
5684
5685 let (popover_bounds_above, popover_bounds_below) = {
5686 let horizontal_offset = (hitbox.top_right().x
5687 - POPOVER_RIGHT_OFFSET
5688 - (target_point.x + actual_size.width))
5689 .min(Pixels::ZERO);
5690 let initial_x = target_point.x + horizontal_offset;
5691 (
5692 Bounds::new(
5693 point(initial_x, target_point.y - actual_size.height),
5694 actual_size,
5695 ),
5696 Bounds::new(
5697 point(initial_x, target_point.y + line_height + HOVER_POPOVER_GAP),
5698 actual_size,
5699 ),
5700 )
5701 };
5702
5703 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5704 context_menu_layout
5705 .as_ref()
5706 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5707 };
5708
5709 let final_origin = if popover_bounds_above.is_contained_within(hitbox)
5710 && !intersects_menu(popover_bounds_above)
5711 {
5712 // try placing above cursor
5713 popover_bounds_above.origin
5714 } else if popover_bounds_below.is_contained_within(hitbox)
5715 && !intersects_menu(popover_bounds_below)
5716 {
5717 // try placing below cursor
5718 popover_bounds_below.origin
5719 } else {
5720 // try surrounding context menu if exists
5721 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5722 let y_for_horizontal_positioning = if menu.y_flipped {
5723 menu.bounds.bottom() - actual_size.height
5724 } else {
5725 menu.bounds.top()
5726 };
5727 let possible_origins = vec![
5728 // left of context menu
5729 point(
5730 menu.bounds.left() - actual_size.width - HOVER_POPOVER_GAP,
5731 y_for_horizontal_positioning,
5732 ),
5733 // right of context menu
5734 point(
5735 menu.bounds.right() + HOVER_POPOVER_GAP,
5736 y_for_horizontal_positioning,
5737 ),
5738 // top of context menu
5739 point(
5740 menu.bounds.left(),
5741 menu.bounds.top() - actual_size.height - HOVER_POPOVER_GAP,
5742 ),
5743 // bottom of context menu
5744 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5745 ];
5746 possible_origins
5747 .into_iter()
5748 .find(|&origin| Bounds::new(origin, actual_size).is_contained_within(hitbox))
5749 });
5750 origin_surrounding_menu.unwrap_or_else(|| {
5751 // fallback to existing above/below cursor logic
5752 // this might overlap menu or overflow in rare case
5753 if popover_bounds_above.is_contained_within(hitbox) {
5754 popover_bounds_above.origin
5755 } else {
5756 popover_bounds_below.origin
5757 }
5758 })
5759 };
5760
5761 window.defer_draw(element, final_origin, 2);
5762 }
5763
5764 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5765 window.paint_layer(layout.hitbox.bounds, |window| {
5766 let scroll_top = layout.position_map.snapshot.scroll_position().y;
5767 let gutter_bg = cx.theme().colors().editor_gutter_background;
5768 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
5769 window.paint_quad(fill(
5770 layout.position_map.text_hitbox.bounds,
5771 self.style.background,
5772 ));
5773
5774 if matches!(
5775 layout.mode,
5776 EditorMode::Full { .. } | EditorMode::Minimap { .. }
5777 ) {
5778 let show_active_line_background = match layout.mode {
5779 EditorMode::Full {
5780 show_active_line_background,
5781 ..
5782 } => show_active_line_background,
5783 EditorMode::Minimap { .. } => true,
5784 _ => false,
5785 };
5786 let mut active_rows = layout.active_rows.iter().peekable();
5787 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
5788 let mut end_row = start_row.0;
5789 while active_rows
5790 .peek()
5791 .is_some_and(|(active_row, has_selection)| {
5792 active_row.0 == end_row + 1
5793 && has_selection.selection == contains_non_empty_selection.selection
5794 })
5795 {
5796 active_rows.next().unwrap();
5797 end_row += 1;
5798 }
5799
5800 if show_active_line_background && !contains_non_empty_selection.selection {
5801 let highlight_h_range =
5802 match layout.position_map.snapshot.current_line_highlight {
5803 CurrentLineHighlight::Gutter => Some(Range {
5804 start: layout.hitbox.left(),
5805 end: layout.gutter_hitbox.right(),
5806 }),
5807 CurrentLineHighlight::Line => Some(Range {
5808 start: layout.position_map.text_hitbox.bounds.left(),
5809 end: layout.position_map.text_hitbox.bounds.right(),
5810 }),
5811 CurrentLineHighlight::All => Some(Range {
5812 start: layout.hitbox.left(),
5813 end: layout.hitbox.right(),
5814 }),
5815 CurrentLineHighlight::None => None,
5816 };
5817 if let Some(range) = highlight_h_range {
5818 let active_line_bg = cx.theme().colors().editor_active_line_background;
5819 let bounds = Bounds {
5820 origin: point(
5821 range.start,
5822 layout.hitbox.origin.y
5823 + Pixels::from(
5824 (start_row.as_f64() - scroll_top)
5825 * ScrollPixelOffset::from(
5826 layout.position_map.line_height,
5827 ),
5828 ),
5829 ),
5830 size: size(
5831 range.end - range.start,
5832 layout.position_map.line_height
5833 * (end_row - start_row.0 + 1) as f32,
5834 ),
5835 };
5836 window.paint_quad(fill(bounds, active_line_bg));
5837 }
5838 }
5839 }
5840
5841 let mut paint_highlight = |highlight_row_start: DisplayRow,
5842 highlight_row_end: DisplayRow,
5843 highlight: crate::LineHighlight,
5844 edges| {
5845 let mut origin_x = layout.hitbox.left();
5846 let mut width = layout.hitbox.size.width;
5847 if !highlight.include_gutter {
5848 origin_x += layout.gutter_hitbox.size.width;
5849 width -= layout.gutter_hitbox.size.width;
5850 }
5851
5852 let origin = point(
5853 origin_x,
5854 layout.hitbox.origin.y
5855 + Pixels::from(
5856 (highlight_row_start.as_f64() - scroll_top)
5857 * ScrollPixelOffset::from(layout.position_map.line_height),
5858 ),
5859 );
5860 let size = size(
5861 width,
5862 layout.position_map.line_height
5863 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
5864 );
5865 let mut quad = fill(Bounds { origin, size }, highlight.background);
5866 if let Some(border_color) = highlight.border {
5867 quad.border_color = border_color;
5868 quad.border_widths = edges
5869 }
5870 window.paint_quad(quad);
5871 };
5872
5873 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
5874 None;
5875 for (&new_row, &new_background) in &layout.highlighted_rows {
5876 match &mut current_paint {
5877 &mut Some((current_background, ref mut current_range, mut edges)) => {
5878 let new_range_started = current_background != new_background
5879 || current_range.end.next_row() != new_row;
5880 if new_range_started {
5881 if current_range.end.next_row() == new_row {
5882 edges.bottom = px(0.);
5883 };
5884 paint_highlight(
5885 current_range.start,
5886 current_range.end,
5887 current_background,
5888 edges,
5889 );
5890 let edges = Edges {
5891 top: if current_range.end.next_row() != new_row {
5892 px(1.)
5893 } else {
5894 px(0.)
5895 },
5896 bottom: px(1.),
5897 ..Default::default()
5898 };
5899 current_paint = Some((new_background, new_row..new_row, edges));
5900 continue;
5901 } else {
5902 current_range.end = current_range.end.next_row();
5903 }
5904 }
5905 None => {
5906 let edges = Edges {
5907 top: px(1.),
5908 bottom: px(1.),
5909 ..Default::default()
5910 };
5911 current_paint = Some((new_background, new_row..new_row, edges))
5912 }
5913 };
5914 }
5915 if let Some((color, range, edges)) = current_paint {
5916 paint_highlight(range.start, range.end, color, edges);
5917 }
5918
5919 for (guide_x, active) in layout.wrap_guides.iter() {
5920 let color = if *active {
5921 cx.theme().colors().editor_active_wrap_guide
5922 } else {
5923 cx.theme().colors().editor_wrap_guide
5924 };
5925 window.paint_quad(fill(
5926 Bounds {
5927 origin: point(*guide_x, layout.position_map.text_hitbox.origin.y),
5928 size: size(px(1.), layout.position_map.text_hitbox.size.height),
5929 },
5930 color,
5931 ));
5932 }
5933 }
5934 })
5935 }
5936
5937 fn paint_indent_guides(
5938 &mut self,
5939 layout: &mut EditorLayout,
5940 window: &mut Window,
5941 cx: &mut App,
5942 ) {
5943 let Some(indent_guides) = &layout.indent_guides else {
5944 return;
5945 };
5946
5947 let faded_color = |color: Hsla, alpha: f32| {
5948 let mut faded = color;
5949 faded.a = alpha;
5950 faded
5951 };
5952
5953 for indent_guide in indent_guides {
5954 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
5955 let settings = &indent_guide.settings;
5956
5957 // TODO fixed for now, expose them through themes later
5958 const INDENT_AWARE_ALPHA: f32 = 0.2;
5959 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
5960 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
5961 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
5962
5963 let line_color = match (settings.coloring, indent_guide.active) {
5964 (IndentGuideColoring::Disabled, _) => None,
5965 (IndentGuideColoring::Fixed, false) => {
5966 Some(cx.theme().colors().editor_indent_guide)
5967 }
5968 (IndentGuideColoring::Fixed, true) => {
5969 Some(cx.theme().colors().editor_indent_guide_active)
5970 }
5971 (IndentGuideColoring::IndentAware, false) => {
5972 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
5973 }
5974 (IndentGuideColoring::IndentAware, true) => {
5975 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
5976 }
5977 };
5978
5979 let background_color = match (settings.background_coloring, indent_guide.active) {
5980 (IndentGuideBackgroundColoring::Disabled, _) => None,
5981 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
5982 indent_accent_colors,
5983 INDENT_AWARE_BACKGROUND_ALPHA,
5984 )),
5985 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
5986 indent_accent_colors,
5987 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
5988 )),
5989 };
5990
5991 let requested_line_width = if indent_guide.active {
5992 settings.active_line_width
5993 } else {
5994 settings.line_width
5995 }
5996 .clamp(1, 10);
5997 let mut line_indicator_width = 0.;
5998 if let Some(color) = line_color {
5999 window.paint_quad(fill(
6000 Bounds {
6001 origin: indent_guide.origin,
6002 size: size(px(requested_line_width as f32), indent_guide.length),
6003 },
6004 color,
6005 ));
6006 line_indicator_width = requested_line_width as f32;
6007 }
6008
6009 if let Some(color) = background_color {
6010 let width = indent_guide.single_indent_width - px(line_indicator_width);
6011 window.paint_quad(fill(
6012 Bounds {
6013 origin: point(
6014 indent_guide.origin.x + px(line_indicator_width),
6015 indent_guide.origin.y,
6016 ),
6017 size: size(width, indent_guide.length),
6018 },
6019 color,
6020 ));
6021 }
6022 }
6023 }
6024
6025 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6026 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
6027
6028 let line_height = layout.position_map.line_height;
6029 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
6030
6031 for line_layout in layout.line_numbers.values() {
6032 for LineNumberSegment {
6033 shaped_line,
6034 hitbox,
6035 } in &line_layout.segments
6036 {
6037 let Some(hitbox) = hitbox else {
6038 continue;
6039 };
6040
6041 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
6042 let color = cx.theme().colors().editor_hover_line_number;
6043
6044 let line = self.shape_line_number(shaped_line.text.clone(), color, window);
6045 line.paint(
6046 hitbox.origin,
6047 line_height,
6048 TextAlign::Left,
6049 None,
6050 window,
6051 cx,
6052 )
6053 .log_err()
6054 } else {
6055 shaped_line
6056 .paint(
6057 hitbox.origin,
6058 line_height,
6059 TextAlign::Left,
6060 None,
6061 window,
6062 cx,
6063 )
6064 .log_err()
6065 }) else {
6066 continue;
6067 };
6068
6069 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
6070 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
6071 if is_singleton {
6072 window.set_cursor_style(CursorStyle::IBeam, hitbox);
6073 } else {
6074 window.set_cursor_style(CursorStyle::PointingHand, hitbox);
6075 }
6076 }
6077 }
6078 }
6079
6080 fn paint_gutter_diff_hunks(
6081 layout: &mut EditorLayout,
6082 split_side: Option<SplitSide>,
6083 window: &mut Window,
6084 cx: &mut App,
6085 ) {
6086 if layout.display_hunks.is_empty() {
6087 return;
6088 }
6089
6090 let line_height = layout.position_map.line_height;
6091 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6092 for (hunk, hitbox) in &layout.display_hunks {
6093 let hunk_to_paint = match hunk {
6094 DisplayDiffHunk::Folded { .. } => {
6095 let hunk_bounds = Self::diff_hunk_bounds(
6096 &layout.position_map.snapshot,
6097 line_height,
6098 layout.gutter_hitbox.bounds,
6099 hunk,
6100 );
6101 Some((
6102 hunk_bounds,
6103 cx.theme().colors().version_control_modified,
6104 Corners::all(px(0.)),
6105 DiffHunkStatus::modified_none(),
6106 ))
6107 }
6108 DisplayDiffHunk::Unfolded {
6109 status,
6110 display_row_range,
6111 ..
6112 } => hitbox.as_ref().map(|hunk_hitbox| {
6113 let color = match split_side {
6114 Some(SplitSide::Left) => cx.theme().colors().version_control_deleted,
6115 Some(SplitSide::Right) => cx.theme().colors().version_control_added,
6116 None => match status.kind {
6117 DiffHunkStatusKind::Added => {
6118 cx.theme().colors().version_control_added
6119 }
6120 DiffHunkStatusKind::Modified => {
6121 cx.theme().colors().version_control_modified
6122 }
6123 DiffHunkStatusKind::Deleted => {
6124 cx.theme().colors().version_control_deleted
6125 }
6126 },
6127 };
6128 match status.kind {
6129 DiffHunkStatusKind::Deleted if display_row_range.is_empty() => (
6130 Bounds::new(
6131 point(
6132 hunk_hitbox.origin.x - hunk_hitbox.size.width,
6133 hunk_hitbox.origin.y,
6134 ),
6135 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
6136 ),
6137 color,
6138 Corners::all(1. * line_height),
6139 *status,
6140 ),
6141 _ => (hunk_hitbox.bounds, color, Corners::all(px(0.)), *status),
6142 }
6143 }),
6144 };
6145
6146 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
6147 // Flatten the background color with the editor color to prevent
6148 // elements below transparent hunks from showing through
6149 let flattened_background_color = cx
6150 .theme()
6151 .colors()
6152 .editor_background
6153 .blend(background_color);
6154
6155 if !Self::diff_hunk_hollow(status, cx) {
6156 window.paint_quad(quad(
6157 hunk_bounds,
6158 corner_radii,
6159 flattened_background_color,
6160 Edges::default(),
6161 transparent_black(),
6162 BorderStyle::default(),
6163 ));
6164 } else {
6165 let flattened_unstaged_background_color = cx
6166 .theme()
6167 .colors()
6168 .editor_background
6169 .blend(background_color.opacity(0.3));
6170
6171 window.paint_quad(quad(
6172 hunk_bounds,
6173 corner_radii,
6174 flattened_unstaged_background_color,
6175 Edges::all(px(1.0)),
6176 flattened_background_color,
6177 BorderStyle::Solid,
6178 ));
6179 }
6180 }
6181 }
6182 });
6183 }
6184
6185 fn gutter_strip_width(line_height: Pixels) -> Pixels {
6186 (0.275 * line_height).floor()
6187 }
6188
6189 fn diff_hunk_bounds(
6190 snapshot: &EditorSnapshot,
6191 line_height: Pixels,
6192 gutter_bounds: Bounds<Pixels>,
6193 hunk: &DisplayDiffHunk,
6194 ) -> Bounds<Pixels> {
6195 let scroll_position = snapshot.scroll_position();
6196 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
6197 let gutter_strip_width = Self::gutter_strip_width(line_height);
6198
6199 match hunk {
6200 DisplayDiffHunk::Folded { display_row, .. } => {
6201 let start_y = (display_row.as_f64() * ScrollPixelOffset::from(line_height)
6202 - scroll_top)
6203 .into();
6204 let end_y = start_y + line_height;
6205 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6206 let highlight_size = size(gutter_strip_width, end_y - start_y);
6207 Bounds::new(highlight_origin, highlight_size)
6208 }
6209 DisplayDiffHunk::Unfolded {
6210 display_row_range,
6211 status,
6212 ..
6213 } => {
6214 if status.is_deleted() && display_row_range.is_empty() {
6215 let row = display_row_range.start;
6216
6217 let offset = ScrollPixelOffset::from(line_height / 2.);
6218 let start_y =
6219 (row.as_f64() * ScrollPixelOffset::from(line_height) - offset - scroll_top)
6220 .into();
6221 let end_y = start_y + line_height;
6222
6223 let width = (0.35 * line_height).floor();
6224 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6225 let highlight_size = size(width, end_y - start_y);
6226 Bounds::new(highlight_origin, highlight_size)
6227 } else {
6228 let start_row = display_row_range.start;
6229 let end_row = display_row_range.end;
6230 // If we're in a multibuffer, row range span might include an
6231 // excerpt header, so if we were to draw the marker straight away,
6232 // the hunk might include the rows of that header.
6233 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
6234 // Instead, we simply check whether the range we're dealing with includes
6235 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
6236 let end_row_in_current_excerpt = snapshot
6237 .blocks_in_range(start_row..end_row)
6238 .find_map(|(start_row, block)| {
6239 if matches!(
6240 block,
6241 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
6242 ) {
6243 Some(start_row)
6244 } else {
6245 None
6246 }
6247 })
6248 .unwrap_or(end_row);
6249
6250 let start_y = (start_row.as_f64() * ScrollPixelOffset::from(line_height)
6251 - scroll_top)
6252 .into();
6253 let end_y = Pixels::from(
6254 end_row_in_current_excerpt.as_f64() * ScrollPixelOffset::from(line_height)
6255 - scroll_top,
6256 );
6257
6258 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6259 let highlight_size = size(gutter_strip_width, end_y - start_y);
6260 Bounds::new(highlight_origin, highlight_size)
6261 }
6262 }
6263 }
6264 }
6265
6266 fn paint_gutter_indicators(
6267 &self,
6268 layout: &mut EditorLayout,
6269 window: &mut Window,
6270 cx: &mut App,
6271 ) {
6272 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6273 window.with_element_namespace("crease_toggles", |window| {
6274 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
6275 crease_toggle.paint(window, cx);
6276 }
6277 });
6278
6279 window.with_element_namespace("expand_toggles", |window| {
6280 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
6281 expand_toggle.paint(window, cx);
6282 }
6283 });
6284
6285 for breakpoint in layout.breakpoints.iter_mut() {
6286 breakpoint.paint(window, cx);
6287 }
6288
6289 for test_indicator in layout.test_indicators.iter_mut() {
6290 test_indicator.paint(window, cx);
6291 }
6292
6293 if let Some(diff_review_button) = layout.diff_review_button.as_mut() {
6294 diff_review_button.paint(window, cx);
6295 }
6296 });
6297 }
6298
6299 fn paint_gutter_highlights(
6300 &self,
6301 layout: &mut EditorLayout,
6302 window: &mut Window,
6303 cx: &mut App,
6304 ) {
6305 for (_, hunk_hitbox) in &layout.display_hunks {
6306 if let Some(hunk_hitbox) = hunk_hitbox
6307 && !self
6308 .editor
6309 .read(cx)
6310 .buffer()
6311 .read(cx)
6312 .all_diff_hunks_expanded()
6313 {
6314 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
6315 }
6316 }
6317
6318 let show_git_gutter = layout
6319 .position_map
6320 .snapshot
6321 .show_git_diff_gutter
6322 .unwrap_or_else(|| {
6323 matches!(
6324 ProjectSettings::get_global(cx).git.git_gutter,
6325 GitGutterSetting::TrackedFiles
6326 )
6327 });
6328 if show_git_gutter {
6329 Self::paint_gutter_diff_hunks(layout, self.split_side, window, cx)
6330 }
6331
6332 let highlight_width = 0.275 * layout.position_map.line_height;
6333 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
6334 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6335 for (range, color) in &layout.highlighted_gutter_ranges {
6336 let start_row = if range.start.row() < layout.visible_display_row_range.start {
6337 layout.visible_display_row_range.start - DisplayRow(1)
6338 } else {
6339 range.start.row()
6340 };
6341 let end_row = if range.end.row() > layout.visible_display_row_range.end {
6342 layout.visible_display_row_range.end + DisplayRow(1)
6343 } else {
6344 range.end.row()
6345 };
6346
6347 let start_y = layout.gutter_hitbox.top()
6348 + Pixels::from(
6349 start_row.0 as f64
6350 * ScrollPixelOffset::from(layout.position_map.line_height)
6351 - layout.position_map.scroll_pixel_position.y,
6352 );
6353 let end_y = layout.gutter_hitbox.top()
6354 + Pixels::from(
6355 (end_row.0 + 1) as f64
6356 * ScrollPixelOffset::from(layout.position_map.line_height)
6357 - layout.position_map.scroll_pixel_position.y,
6358 );
6359 let bounds = Bounds::from_corners(
6360 point(layout.gutter_hitbox.left(), start_y),
6361 point(layout.gutter_hitbox.left() + highlight_width, end_y),
6362 );
6363 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
6364 }
6365 });
6366 }
6367
6368 fn paint_blamed_display_rows(
6369 &self,
6370 layout: &mut EditorLayout,
6371 window: &mut Window,
6372 cx: &mut App,
6373 ) {
6374 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
6375 return;
6376 };
6377
6378 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6379 for mut blame_element in blamed_display_rows.into_iter() {
6380 blame_element.paint(window, cx);
6381 }
6382 })
6383 }
6384
6385 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6386 window.with_content_mask(
6387 Some(ContentMask {
6388 bounds: layout.position_map.text_hitbox.bounds,
6389 }),
6390 |window| {
6391 let editor = self.editor.read(cx);
6392 if editor.mouse_cursor_hidden {
6393 window.set_window_cursor_style(CursorStyle::None);
6394 } else if let SelectionDragState::ReadyToDrag {
6395 mouse_down_time, ..
6396 } = &editor.selection_drag_state
6397 {
6398 let drag_and_drop_delay = Duration::from_millis(
6399 EditorSettings::get_global(cx)
6400 .drag_and_drop_selection
6401 .delay
6402 .0,
6403 );
6404 if mouse_down_time.elapsed() >= drag_and_drop_delay {
6405 window.set_cursor_style(
6406 CursorStyle::DragCopy,
6407 &layout.position_map.text_hitbox,
6408 );
6409 }
6410 } else if matches!(
6411 editor.selection_drag_state,
6412 SelectionDragState::Dragging { .. }
6413 ) {
6414 window
6415 .set_cursor_style(CursorStyle::DragCopy, &layout.position_map.text_hitbox);
6416 } else if editor
6417 .hovered_link_state
6418 .as_ref()
6419 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
6420 {
6421 window.set_cursor_style(
6422 CursorStyle::PointingHand,
6423 &layout.position_map.text_hitbox,
6424 );
6425 } else {
6426 window.set_cursor_style(CursorStyle::IBeam, &layout.position_map.text_hitbox);
6427 };
6428
6429 self.paint_lines_background(layout, window, cx);
6430 let invisible_display_ranges = self.paint_highlights(layout, window, cx);
6431 self.paint_document_colors(layout, window);
6432 self.paint_lines(&invisible_display_ranges, layout, window, cx);
6433 self.paint_redactions(layout, window);
6434 self.paint_cursors(layout, window, cx);
6435 self.paint_inline_diagnostics(layout, window, cx);
6436 self.paint_inline_blame(layout, window, cx);
6437 self.paint_inline_code_actions(layout, window, cx);
6438 self.paint_diff_hunk_controls(layout, window, cx);
6439 window.with_element_namespace("crease_trailers", |window| {
6440 for trailer in layout.crease_trailers.iter_mut().flatten() {
6441 trailer.element.paint(window, cx);
6442 }
6443 });
6444 },
6445 )
6446 }
6447
6448 fn paint_highlights(
6449 &mut self,
6450 layout: &mut EditorLayout,
6451 window: &mut Window,
6452 cx: &mut App,
6453 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
6454 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6455 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
6456 let line_end_overshoot = 0.15 * layout.position_map.line_height;
6457 for (range, color) in &layout.highlighted_ranges {
6458 self.paint_highlighted_range(
6459 range.clone(),
6460 true,
6461 *color,
6462 Pixels::ZERO,
6463 line_end_overshoot,
6464 layout,
6465 window,
6466 );
6467 }
6468
6469 let corner_radius = if EditorSettings::get_global(cx).rounded_selection {
6470 0.15 * layout.position_map.line_height
6471 } else {
6472 Pixels::ZERO
6473 };
6474
6475 for (player_color, selections) in &layout.selections {
6476 for selection in selections.iter() {
6477 self.paint_highlighted_range(
6478 selection.range.clone(),
6479 true,
6480 player_color.selection,
6481 corner_radius,
6482 corner_radius * 2.,
6483 layout,
6484 window,
6485 );
6486
6487 if selection.is_local && !selection.range.is_empty() {
6488 invisible_display_ranges.push(selection.range.clone());
6489 }
6490 }
6491 }
6492 invisible_display_ranges
6493 })
6494 }
6495
6496 fn paint_lines(
6497 &mut self,
6498 invisible_display_ranges: &[Range<DisplayPoint>],
6499 layout: &mut EditorLayout,
6500 window: &mut Window,
6501 cx: &mut App,
6502 ) {
6503 let whitespace_setting = self
6504 .editor
6505 .read(cx)
6506 .buffer
6507 .read(cx)
6508 .language_settings(cx)
6509 .show_whitespaces;
6510
6511 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6512 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6513 line_with_invisibles.draw(
6514 layout,
6515 row,
6516 layout.content_origin,
6517 whitespace_setting,
6518 invisible_display_ranges,
6519 window,
6520 cx,
6521 )
6522 }
6523
6524 for line_element in &mut layout.line_elements {
6525 line_element.paint(window, cx);
6526 }
6527 }
6528
6529 fn paint_sticky_headers(
6530 &mut self,
6531 layout: &mut EditorLayout,
6532 window: &mut Window,
6533 cx: &mut App,
6534 ) {
6535 let Some(mut sticky_headers) = layout.sticky_headers.take() else {
6536 return;
6537 };
6538
6539 if sticky_headers.lines.is_empty() {
6540 layout.sticky_headers = Some(sticky_headers);
6541 return;
6542 }
6543
6544 let whitespace_setting = self
6545 .editor
6546 .read(cx)
6547 .buffer
6548 .read(cx)
6549 .language_settings(cx)
6550 .show_whitespaces;
6551 sticky_headers.paint(layout, whitespace_setting, window, cx);
6552
6553 let sticky_header_hitboxes: Vec<Hitbox> = sticky_headers
6554 .lines
6555 .iter()
6556 .map(|line| line.hitbox.clone())
6557 .collect();
6558 let hovered_hitbox = sticky_header_hitboxes
6559 .iter()
6560 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6561
6562 window.on_mouse_event(move |_: &MouseMoveEvent, phase, window, _cx| {
6563 if !phase.bubble() {
6564 return;
6565 }
6566
6567 let current_hover = sticky_header_hitboxes
6568 .iter()
6569 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6570 if hovered_hitbox != current_hover {
6571 window.refresh();
6572 }
6573 });
6574
6575 for (line_index, line) in sticky_headers.lines.iter().enumerate() {
6576 let editor = self.editor.clone();
6577 let hitbox = line.hitbox.clone();
6578 let target_anchor = line.target_anchor;
6579 window.on_mouse_event(move |event: &MouseDownEvent, phase, window, cx| {
6580 if !phase.bubble() {
6581 return;
6582 }
6583
6584 if event.button == MouseButton::Left && hitbox.is_hovered(window) {
6585 editor.update(cx, |editor, cx| {
6586 editor.change_selections(
6587 SelectionEffects::scroll(Autoscroll::top_relative(line_index)),
6588 window,
6589 cx,
6590 |selections| selections.select_ranges([target_anchor..target_anchor]),
6591 );
6592 cx.stop_propagation();
6593 });
6594 }
6595 });
6596 }
6597
6598 let text_bounds = layout.position_map.text_hitbox.bounds;
6599 let border_top = text_bounds.top()
6600 + sticky_headers.lines.last().unwrap().offset
6601 + layout.position_map.line_height;
6602 let separator_height = px(1.);
6603 let border_bounds = Bounds::from_corners(
6604 point(layout.gutter_hitbox.bounds.left(), border_top),
6605 point(text_bounds.right(), border_top + separator_height),
6606 );
6607 window.paint_quad(fill(border_bounds, cx.theme().colors().border_variant));
6608
6609 layout.sticky_headers = Some(sticky_headers);
6610 }
6611
6612 fn paint_lines_background(
6613 &mut self,
6614 layout: &mut EditorLayout,
6615 window: &mut Window,
6616 cx: &mut App,
6617 ) {
6618 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6619 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6620 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
6621 }
6622 }
6623
6624 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
6625 if layout.redacted_ranges.is_empty() {
6626 return;
6627 }
6628
6629 let line_end_overshoot = layout.line_end_overshoot();
6630
6631 // A softer than perfect black
6632 let redaction_color = gpui::rgb(0x0e1111);
6633
6634 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6635 for range in layout.redacted_ranges.iter() {
6636 self.paint_highlighted_range(
6637 range.clone(),
6638 true,
6639 redaction_color.into(),
6640 Pixels::ZERO,
6641 line_end_overshoot,
6642 layout,
6643 window,
6644 );
6645 }
6646 });
6647 }
6648
6649 fn paint_document_colors(&self, layout: &mut EditorLayout, window: &mut Window) {
6650 let Some((colors_render_mode, image_colors)) = &layout.document_colors else {
6651 return;
6652 };
6653 if image_colors.is_empty()
6654 || colors_render_mode == &DocumentColorsRenderMode::None
6655 || colors_render_mode == &DocumentColorsRenderMode::Inlay
6656 {
6657 return;
6658 }
6659
6660 let line_end_overshoot = layout.line_end_overshoot();
6661
6662 for (range, color) in image_colors {
6663 match colors_render_mode {
6664 DocumentColorsRenderMode::Inlay | DocumentColorsRenderMode::None => return,
6665 DocumentColorsRenderMode::Background => {
6666 self.paint_highlighted_range(
6667 range.clone(),
6668 true,
6669 *color,
6670 Pixels::ZERO,
6671 line_end_overshoot,
6672 layout,
6673 window,
6674 );
6675 }
6676 DocumentColorsRenderMode::Border => {
6677 self.paint_highlighted_range(
6678 range.clone(),
6679 false,
6680 *color,
6681 Pixels::ZERO,
6682 line_end_overshoot,
6683 layout,
6684 window,
6685 );
6686 }
6687 }
6688 }
6689 }
6690
6691 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6692 for cursor in &mut layout.visible_cursors {
6693 cursor.paint(layout.content_origin, window, cx);
6694 }
6695 }
6696
6697 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6698 let Some(scrollbars_layout) = layout.scrollbars_layout.take() else {
6699 return;
6700 };
6701 let any_scrollbar_dragged = self.editor.read(cx).scroll_manager.any_scrollbar_dragged();
6702
6703 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
6704 let hitbox = &scrollbar_layout.hitbox;
6705 if scrollbars_layout.visible {
6706 let scrollbar_edges = match axis {
6707 ScrollbarAxis::Horizontal => Edges {
6708 top: Pixels::ZERO,
6709 right: Pixels::ZERO,
6710 bottom: Pixels::ZERO,
6711 left: Pixels::ZERO,
6712 },
6713 ScrollbarAxis::Vertical => Edges {
6714 top: Pixels::ZERO,
6715 right: Pixels::ZERO,
6716 bottom: Pixels::ZERO,
6717 left: ScrollbarLayout::BORDER_WIDTH,
6718 },
6719 };
6720
6721 window.paint_layer(hitbox.bounds, |window| {
6722 window.paint_quad(quad(
6723 hitbox.bounds,
6724 Corners::default(),
6725 cx.theme().colors().scrollbar_track_background,
6726 scrollbar_edges,
6727 cx.theme().colors().scrollbar_track_border,
6728 BorderStyle::Solid,
6729 ));
6730
6731 if axis == ScrollbarAxis::Vertical {
6732 let fast_markers =
6733 self.collect_fast_scrollbar_markers(layout, scrollbar_layout, cx);
6734 // Refresh slow scrollbar markers in the background. Below, we
6735 // paint whatever markers have already been computed.
6736 self.refresh_slow_scrollbar_markers(layout, scrollbar_layout, window, cx);
6737
6738 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
6739 for marker in markers.iter().chain(&fast_markers) {
6740 let mut marker = marker.clone();
6741 marker.bounds.origin += hitbox.origin;
6742 window.paint_quad(marker);
6743 }
6744 }
6745
6746 if let Some(thumb_bounds) = scrollbar_layout.thumb_bounds {
6747 let scrollbar_thumb_color = match scrollbar_layout.thumb_state {
6748 ScrollbarThumbState::Dragging => {
6749 cx.theme().colors().scrollbar_thumb_active_background
6750 }
6751 ScrollbarThumbState::Hovered => {
6752 cx.theme().colors().scrollbar_thumb_hover_background
6753 }
6754 ScrollbarThumbState::Idle => {
6755 cx.theme().colors().scrollbar_thumb_background
6756 }
6757 };
6758 window.paint_quad(quad(
6759 thumb_bounds,
6760 Corners::default(),
6761 scrollbar_thumb_color,
6762 scrollbar_edges,
6763 cx.theme().colors().scrollbar_thumb_border,
6764 BorderStyle::Solid,
6765 ));
6766
6767 if any_scrollbar_dragged {
6768 window.set_window_cursor_style(CursorStyle::Arrow);
6769 } else {
6770 window.set_cursor_style(CursorStyle::Arrow, hitbox);
6771 }
6772 }
6773 })
6774 }
6775 }
6776
6777 window.on_mouse_event({
6778 let editor = self.editor.clone();
6779 let scrollbars_layout = scrollbars_layout.clone();
6780
6781 let mut mouse_position = window.mouse_position();
6782 move |event: &MouseMoveEvent, phase, window, cx| {
6783 if phase == DispatchPhase::Capture {
6784 return;
6785 }
6786
6787 editor.update(cx, |editor, cx| {
6788 if let Some((scrollbar_layout, axis)) = event
6789 .pressed_button
6790 .filter(|button| *button == MouseButton::Left)
6791 .and(editor.scroll_manager.dragging_scrollbar_axis())
6792 .and_then(|axis| {
6793 scrollbars_layout
6794 .iter_scrollbars()
6795 .find(|(_, a)| *a == axis)
6796 })
6797 {
6798 let ScrollbarLayout {
6799 hitbox,
6800 text_unit_size,
6801 ..
6802 } = scrollbar_layout;
6803
6804 let old_position = mouse_position.along(axis);
6805 let new_position = event.position.along(axis);
6806 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
6807 .contains(&old_position)
6808 {
6809 let position = editor.scroll_position(cx).apply_along(axis, |p| {
6810 (p + ScrollOffset::from(
6811 (new_position - old_position) / *text_unit_size,
6812 ))
6813 .max(0.)
6814 });
6815 editor.set_scroll_position(position, window, cx);
6816 }
6817
6818 editor.scroll_manager.show_scrollbars(window, cx);
6819 cx.stop_propagation();
6820 } else if let Some((layout, axis)) = scrollbars_layout
6821 .get_hovered_axis(window)
6822 .filter(|_| !event.dragging())
6823 {
6824 if layout.thumb_hovered(&event.position) {
6825 editor
6826 .scroll_manager
6827 .set_hovered_scroll_thumb_axis(axis, cx);
6828 } else {
6829 editor.scroll_manager.reset_scrollbar_state(cx);
6830 }
6831
6832 editor.scroll_manager.show_scrollbars(window, cx);
6833 } else {
6834 editor.scroll_manager.reset_scrollbar_state(cx);
6835 }
6836
6837 mouse_position = event.position;
6838 })
6839 }
6840 });
6841
6842 if any_scrollbar_dragged {
6843 window.on_mouse_event({
6844 let editor = self.editor.clone();
6845 move |_: &MouseUpEvent, phase, window, cx| {
6846 if phase == DispatchPhase::Capture {
6847 return;
6848 }
6849
6850 editor.update(cx, |editor, cx| {
6851 if let Some((_, axis)) = scrollbars_layout.get_hovered_axis(window) {
6852 editor
6853 .scroll_manager
6854 .set_hovered_scroll_thumb_axis(axis, cx);
6855 } else {
6856 editor.scroll_manager.reset_scrollbar_state(cx);
6857 }
6858 cx.stop_propagation();
6859 });
6860 }
6861 });
6862 } else {
6863 window.on_mouse_event({
6864 let editor = self.editor.clone();
6865
6866 move |event: &MouseDownEvent, phase, window, cx| {
6867 if phase == DispatchPhase::Capture {
6868 return;
6869 }
6870 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
6871 else {
6872 return;
6873 };
6874
6875 let ScrollbarLayout {
6876 hitbox,
6877 visible_range,
6878 text_unit_size,
6879 thumb_bounds,
6880 ..
6881 } = scrollbar_layout;
6882
6883 let Some(thumb_bounds) = thumb_bounds else {
6884 return;
6885 };
6886
6887 editor.update(cx, |editor, cx| {
6888 editor
6889 .scroll_manager
6890 .set_dragged_scroll_thumb_axis(axis, cx);
6891
6892 let event_position = event.position.along(axis);
6893
6894 if event_position < thumb_bounds.origin.along(axis)
6895 || thumb_bounds.bottom_right().along(axis) < event_position
6896 {
6897 let center_position = ((event_position - hitbox.origin.along(axis))
6898 / *text_unit_size)
6899 .round() as u32;
6900 let start_position = center_position.saturating_sub(
6901 (visible_range.end - visible_range.start) as u32 / 2,
6902 );
6903
6904 let position = editor
6905 .scroll_position(cx)
6906 .apply_along(axis, |_| start_position as ScrollOffset);
6907
6908 editor.set_scroll_position(position, window, cx);
6909 } else {
6910 editor.scroll_manager.show_scrollbars(window, cx);
6911 }
6912
6913 cx.stop_propagation();
6914 });
6915 }
6916 });
6917 }
6918 }
6919
6920 fn collect_fast_scrollbar_markers(
6921 &self,
6922 layout: &EditorLayout,
6923 scrollbar_layout: &ScrollbarLayout,
6924 cx: &mut App,
6925 ) -> Vec<PaintQuad> {
6926 const LIMIT: usize = 100;
6927 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
6928 return vec![];
6929 }
6930 let cursor_ranges = layout
6931 .cursors
6932 .iter()
6933 .map(|(point, color)| ColoredRange {
6934 start: point.row(),
6935 end: point.row(),
6936 color: *color,
6937 })
6938 .collect_vec();
6939 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
6940 }
6941
6942 fn refresh_slow_scrollbar_markers(
6943 &self,
6944 layout: &EditorLayout,
6945 scrollbar_layout: &ScrollbarLayout,
6946 window: &mut Window,
6947 cx: &mut App,
6948 ) {
6949 self.editor.update(cx, |editor, cx| {
6950 if editor.buffer_kind(cx) != ItemBufferKind::Singleton
6951 || !editor
6952 .scrollbar_marker_state
6953 .should_refresh(scrollbar_layout.hitbox.size)
6954 {
6955 return;
6956 }
6957
6958 let scrollbar_layout = scrollbar_layout.clone();
6959 let background_highlights = editor.background_highlights.clone();
6960 let snapshot = layout.position_map.snapshot.clone();
6961 let theme = cx.theme().clone();
6962 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
6963
6964 editor.scrollbar_marker_state.dirty = false;
6965 editor.scrollbar_marker_state.pending_refresh =
6966 Some(cx.spawn_in(window, async move |editor, cx| {
6967 let scrollbar_size = scrollbar_layout.hitbox.size;
6968 let scrollbar_markers = cx
6969 .background_spawn(async move {
6970 let max_point = snapshot.display_snapshot.buffer_snapshot().max_point();
6971 let mut marker_quads = Vec::new();
6972 if scrollbar_settings.git_diff {
6973 let marker_row_ranges =
6974 snapshot.buffer_snapshot().diff_hunks().map(|hunk| {
6975 let start_display_row =
6976 MultiBufferPoint::new(hunk.row_range.start.0, 0)
6977 .to_display_point(&snapshot.display_snapshot)
6978 .row();
6979 let mut end_display_row =
6980 MultiBufferPoint::new(hunk.row_range.end.0, 0)
6981 .to_display_point(&snapshot.display_snapshot)
6982 .row();
6983 if end_display_row != start_display_row {
6984 end_display_row.0 -= 1;
6985 }
6986 let color = match &hunk.status().kind {
6987 DiffHunkStatusKind::Added => {
6988 theme.colors().version_control_added
6989 }
6990 DiffHunkStatusKind::Modified => {
6991 theme.colors().version_control_modified
6992 }
6993 DiffHunkStatusKind::Deleted => {
6994 theme.colors().version_control_deleted
6995 }
6996 };
6997 ColoredRange {
6998 start: start_display_row,
6999 end: end_display_row,
7000 color,
7001 }
7002 });
7003
7004 marker_quads.extend(
7005 scrollbar_layout
7006 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
7007 );
7008 }
7009
7010 for (background_highlight_id, (_, background_ranges)) in
7011 background_highlights.iter()
7012 {
7013 let is_search_highlights = *background_highlight_id
7014 == HighlightKey::BufferSearchHighlights;
7015 let is_text_highlights =
7016 *background_highlight_id == HighlightKey::SelectedTextHighlight;
7017 let is_symbol_occurrences = *background_highlight_id
7018 == HighlightKey::DocumentHighlightRead
7019 || *background_highlight_id
7020 == HighlightKey::DocumentHighlightWrite;
7021 if (is_search_highlights && scrollbar_settings.search_results)
7022 || (is_text_highlights && scrollbar_settings.selected_text)
7023 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
7024 {
7025 let mut color = theme.status().info;
7026 if is_symbol_occurrences {
7027 color.fade_out(0.5);
7028 }
7029 let marker_row_ranges = background_ranges.iter().map(|range| {
7030 let display_start = range
7031 .start
7032 .to_display_point(&snapshot.display_snapshot);
7033 let display_end =
7034 range.end.to_display_point(&snapshot.display_snapshot);
7035 ColoredRange {
7036 start: display_start.row(),
7037 end: display_end.row(),
7038 color,
7039 }
7040 });
7041 marker_quads.extend(
7042 scrollbar_layout
7043 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
7044 );
7045 }
7046 }
7047
7048 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
7049 let diagnostics = snapshot
7050 .buffer_snapshot()
7051 .diagnostics_in_range::<Point>(Point::zero()..max_point)
7052 // Don't show diagnostics the user doesn't care about
7053 .filter(|diagnostic| {
7054 match (
7055 scrollbar_settings.diagnostics,
7056 diagnostic.diagnostic.severity,
7057 ) {
7058 (ScrollbarDiagnostics::All, _) => true,
7059 (
7060 ScrollbarDiagnostics::Error,
7061 lsp::DiagnosticSeverity::ERROR,
7062 ) => true,
7063 (
7064 ScrollbarDiagnostics::Warning,
7065 lsp::DiagnosticSeverity::ERROR
7066 | lsp::DiagnosticSeverity::WARNING,
7067 ) => true,
7068 (
7069 ScrollbarDiagnostics::Information,
7070 lsp::DiagnosticSeverity::ERROR
7071 | lsp::DiagnosticSeverity::WARNING
7072 | lsp::DiagnosticSeverity::INFORMATION,
7073 ) => true,
7074 (_, _) => false,
7075 }
7076 })
7077 // We want to sort by severity, in order to paint the most severe diagnostics last.
7078 .sorted_by_key(|diagnostic| {
7079 std::cmp::Reverse(diagnostic.diagnostic.severity)
7080 });
7081
7082 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
7083 let start_display = diagnostic
7084 .range
7085 .start
7086 .to_display_point(&snapshot.display_snapshot);
7087 let end_display = diagnostic
7088 .range
7089 .end
7090 .to_display_point(&snapshot.display_snapshot);
7091 let color = match diagnostic.diagnostic.severity {
7092 lsp::DiagnosticSeverity::ERROR => theme.status().error,
7093 lsp::DiagnosticSeverity::WARNING => theme.status().warning,
7094 lsp::DiagnosticSeverity::INFORMATION => theme.status().info,
7095 _ => theme.status().hint,
7096 };
7097 ColoredRange {
7098 start: start_display.row(),
7099 end: end_display.row(),
7100 color,
7101 }
7102 });
7103 marker_quads.extend(
7104 scrollbar_layout
7105 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
7106 );
7107 }
7108
7109 Arc::from(marker_quads)
7110 })
7111 .await;
7112
7113 editor.update(cx, |editor, cx| {
7114 editor.scrollbar_marker_state.markers = scrollbar_markers;
7115 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
7116 editor.scrollbar_marker_state.pending_refresh = None;
7117 cx.notify();
7118 })?;
7119
7120 Ok(())
7121 }));
7122 });
7123 }
7124
7125 fn paint_highlighted_range(
7126 &self,
7127 range: Range<DisplayPoint>,
7128 fill: bool,
7129 color: Hsla,
7130 corner_radius: Pixels,
7131 line_end_overshoot: Pixels,
7132 layout: &EditorLayout,
7133 window: &mut Window,
7134 ) {
7135 let start_row = layout.visible_display_row_range.start;
7136 let end_row = layout.visible_display_row_range.end;
7137 if range.start != range.end {
7138 let row_range = if range.end.column() == 0 {
7139 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
7140 } else {
7141 cmp::max(range.start.row(), start_row)
7142 ..cmp::min(range.end.row().next_row(), end_row)
7143 };
7144
7145 let highlighted_range = HighlightedRange {
7146 color,
7147 line_height: layout.position_map.line_height,
7148 corner_radius,
7149 start_y: layout.content_origin.y
7150 + Pixels::from(
7151 (row_range.start.as_f64() - layout.position_map.scroll_position.y)
7152 * ScrollOffset::from(layout.position_map.line_height),
7153 ),
7154 lines: row_range
7155 .iter_rows()
7156 .map(|row| {
7157 let line_layout =
7158 &layout.position_map.line_layouts[row.minus(start_row) as usize];
7159 let alignment_offset =
7160 line_layout.alignment_offset(layout.text_align, layout.content_width);
7161 HighlightedRangeLine {
7162 start_x: if row == range.start.row() {
7163 layout.content_origin.x
7164 + Pixels::from(
7165 ScrollPixelOffset::from(
7166 line_layout.x_for_index(range.start.column() as usize)
7167 + alignment_offset,
7168 ) - layout.position_map.scroll_pixel_position.x,
7169 )
7170 } else {
7171 layout.content_origin.x + alignment_offset
7172 - Pixels::from(layout.position_map.scroll_pixel_position.x)
7173 },
7174 end_x: if row == range.end.row() {
7175 layout.content_origin.x
7176 + Pixels::from(
7177 ScrollPixelOffset::from(
7178 line_layout.x_for_index(range.end.column() as usize)
7179 + alignment_offset,
7180 ) - layout.position_map.scroll_pixel_position.x,
7181 )
7182 } else {
7183 Pixels::from(
7184 ScrollPixelOffset::from(
7185 layout.content_origin.x
7186 + line_layout.width
7187 + alignment_offset
7188 + line_end_overshoot,
7189 ) - layout.position_map.scroll_pixel_position.x,
7190 )
7191 },
7192 }
7193 })
7194 .collect(),
7195 };
7196
7197 highlighted_range.paint(fill, layout.position_map.text_hitbox.bounds, window);
7198 }
7199 }
7200
7201 fn paint_inline_diagnostics(
7202 &mut self,
7203 layout: &mut EditorLayout,
7204 window: &mut Window,
7205 cx: &mut App,
7206 ) {
7207 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
7208 inline_diagnostic.1.paint(window, cx);
7209 }
7210 }
7211
7212 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7213 if let Some(mut blame_layout) = layout.inline_blame_layout.take() {
7214 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7215 blame_layout.element.paint(window, cx);
7216 })
7217 }
7218 }
7219
7220 fn paint_inline_code_actions(
7221 &mut self,
7222 layout: &mut EditorLayout,
7223 window: &mut Window,
7224 cx: &mut App,
7225 ) {
7226 if let Some(mut inline_code_actions) = layout.inline_code_actions.take() {
7227 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7228 inline_code_actions.paint(window, cx);
7229 })
7230 }
7231 }
7232
7233 fn paint_diff_hunk_controls(
7234 &mut self,
7235 layout: &mut EditorLayout,
7236 window: &mut Window,
7237 cx: &mut App,
7238 ) {
7239 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
7240 diff_hunk_control.paint(window, cx);
7241 }
7242 }
7243
7244 fn paint_minimap(&self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7245 if let Some(mut layout) = layout.minimap.take() {
7246 let minimap_hitbox = layout.thumb_layout.hitbox.clone();
7247 let dragging_minimap = self.editor.read(cx).scroll_manager.is_dragging_minimap();
7248
7249 window.paint_layer(layout.thumb_layout.hitbox.bounds, |window| {
7250 window.with_element_namespace("minimap", |window| {
7251 layout.minimap.paint(window, cx);
7252 if let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds {
7253 let minimap_thumb_color = match layout.thumb_layout.thumb_state {
7254 ScrollbarThumbState::Idle => {
7255 cx.theme().colors().minimap_thumb_background
7256 }
7257 ScrollbarThumbState::Hovered => {
7258 cx.theme().colors().minimap_thumb_hover_background
7259 }
7260 ScrollbarThumbState::Dragging => {
7261 cx.theme().colors().minimap_thumb_active_background
7262 }
7263 };
7264 let minimap_thumb_border = match layout.thumb_border_style {
7265 MinimapThumbBorder::Full => Edges::all(ScrollbarLayout::BORDER_WIDTH),
7266 MinimapThumbBorder::LeftOnly => Edges {
7267 left: ScrollbarLayout::BORDER_WIDTH,
7268 ..Default::default()
7269 },
7270 MinimapThumbBorder::LeftOpen => Edges {
7271 right: ScrollbarLayout::BORDER_WIDTH,
7272 top: ScrollbarLayout::BORDER_WIDTH,
7273 bottom: ScrollbarLayout::BORDER_WIDTH,
7274 ..Default::default()
7275 },
7276 MinimapThumbBorder::RightOpen => Edges {
7277 left: ScrollbarLayout::BORDER_WIDTH,
7278 top: ScrollbarLayout::BORDER_WIDTH,
7279 bottom: ScrollbarLayout::BORDER_WIDTH,
7280 ..Default::default()
7281 },
7282 MinimapThumbBorder::None => Default::default(),
7283 };
7284
7285 window.paint_layer(minimap_hitbox.bounds, |window| {
7286 window.paint_quad(quad(
7287 thumb_bounds,
7288 Corners::default(),
7289 minimap_thumb_color,
7290 minimap_thumb_border,
7291 cx.theme().colors().minimap_thumb_border,
7292 BorderStyle::Solid,
7293 ));
7294 });
7295 }
7296 });
7297 });
7298
7299 if dragging_minimap {
7300 window.set_window_cursor_style(CursorStyle::Arrow);
7301 } else {
7302 window.set_cursor_style(CursorStyle::Arrow, &minimap_hitbox);
7303 }
7304
7305 let minimap_axis = ScrollbarAxis::Vertical;
7306 let pixels_per_line = Pixels::from(
7307 ScrollPixelOffset::from(minimap_hitbox.size.height) / layout.max_scroll_top,
7308 )
7309 .min(layout.minimap_line_height);
7310
7311 let mut mouse_position = window.mouse_position();
7312
7313 window.on_mouse_event({
7314 let editor = self.editor.clone();
7315
7316 let minimap_hitbox = minimap_hitbox.clone();
7317
7318 move |event: &MouseMoveEvent, phase, window, cx| {
7319 if phase == DispatchPhase::Capture {
7320 return;
7321 }
7322
7323 editor.update(cx, |editor, cx| {
7324 if event.pressed_button == Some(MouseButton::Left)
7325 && editor.scroll_manager.is_dragging_minimap()
7326 {
7327 let old_position = mouse_position.along(minimap_axis);
7328 let new_position = event.position.along(minimap_axis);
7329 if (minimap_hitbox.origin.along(minimap_axis)
7330 ..minimap_hitbox.bottom_right().along(minimap_axis))
7331 .contains(&old_position)
7332 {
7333 let position =
7334 editor.scroll_position(cx).apply_along(minimap_axis, |p| {
7335 (p + ScrollPixelOffset::from(
7336 (new_position - old_position) / pixels_per_line,
7337 ))
7338 .max(0.)
7339 });
7340
7341 editor.set_scroll_position(position, window, cx);
7342 }
7343 cx.stop_propagation();
7344 } else if minimap_hitbox.is_hovered(window) {
7345 editor.scroll_manager.set_is_hovering_minimap_thumb(
7346 !event.dragging()
7347 && layout
7348 .thumb_layout
7349 .thumb_bounds
7350 .is_some_and(|bounds| bounds.contains(&event.position)),
7351 cx,
7352 );
7353
7354 // Stop hover events from propagating to the
7355 // underlying editor if the minimap hitbox is hovered
7356 if !event.dragging() {
7357 cx.stop_propagation();
7358 }
7359 } else {
7360 editor.scroll_manager.hide_minimap_thumb(cx);
7361 }
7362 mouse_position = event.position;
7363 });
7364 }
7365 });
7366
7367 if dragging_minimap {
7368 window.on_mouse_event({
7369 let editor = self.editor.clone();
7370 move |event: &MouseUpEvent, phase, window, cx| {
7371 if phase == DispatchPhase::Capture {
7372 return;
7373 }
7374
7375 editor.update(cx, |editor, cx| {
7376 if minimap_hitbox.is_hovered(window) {
7377 editor.scroll_manager.set_is_hovering_minimap_thumb(
7378 layout
7379 .thumb_layout
7380 .thumb_bounds
7381 .is_some_and(|bounds| bounds.contains(&event.position)),
7382 cx,
7383 );
7384 } else {
7385 editor.scroll_manager.hide_minimap_thumb(cx);
7386 }
7387 cx.stop_propagation();
7388 });
7389 }
7390 });
7391 } else {
7392 window.on_mouse_event({
7393 let editor = self.editor.clone();
7394
7395 move |event: &MouseDownEvent, phase, window, cx| {
7396 if phase == DispatchPhase::Capture || !minimap_hitbox.is_hovered(window) {
7397 return;
7398 }
7399
7400 let event_position = event.position;
7401
7402 let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds else {
7403 return;
7404 };
7405
7406 editor.update(cx, |editor, cx| {
7407 if !thumb_bounds.contains(&event_position) {
7408 let click_position =
7409 event_position.relative_to(&minimap_hitbox.origin).y;
7410
7411 let top_position = (click_position
7412 - thumb_bounds.size.along(minimap_axis) / 2.0)
7413 .max(Pixels::ZERO);
7414
7415 let scroll_offset = (layout.minimap_scroll_top
7416 + ScrollPixelOffset::from(
7417 top_position / layout.minimap_line_height,
7418 ))
7419 .min(layout.max_scroll_top);
7420
7421 let scroll_position = editor
7422 .scroll_position(cx)
7423 .apply_along(minimap_axis, |_| scroll_offset);
7424 editor.set_scroll_position(scroll_position, window, cx);
7425 }
7426
7427 editor.scroll_manager.set_is_dragging_minimap(cx);
7428 cx.stop_propagation();
7429 });
7430 }
7431 });
7432 }
7433 }
7434 }
7435
7436 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7437 for mut block in layout.blocks.drain(..) {
7438 if block.overlaps_gutter {
7439 block.element.paint(window, cx);
7440 } else {
7441 let mut bounds = layout.hitbox.bounds;
7442 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
7443 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7444 block.element.paint(window, cx);
7445 })
7446 }
7447 }
7448 }
7449
7450 fn paint_edit_prediction_popover(
7451 &mut self,
7452 layout: &mut EditorLayout,
7453 window: &mut Window,
7454 cx: &mut App,
7455 ) {
7456 if let Some(edit_prediction_popover) = layout.edit_prediction_popover.as_mut() {
7457 edit_prediction_popover.paint(window, cx);
7458 }
7459 }
7460
7461 fn paint_mouse_context_menu(
7462 &mut self,
7463 layout: &mut EditorLayout,
7464 window: &mut Window,
7465 cx: &mut App,
7466 ) {
7467 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
7468 mouse_context_menu.paint(window, cx);
7469 }
7470 }
7471
7472 fn paint_scroll_wheel_listener(
7473 &mut self,
7474 layout: &EditorLayout,
7475 window: &mut Window,
7476 cx: &mut App,
7477 ) {
7478 window.on_mouse_event({
7479 let position_map = layout.position_map.clone();
7480 let editor = self.editor.clone();
7481 let hitbox = layout.hitbox.clone();
7482 let mut delta = ScrollDelta::default();
7483
7484 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
7485 // accidentally turn off their scrolling.
7486 let base_scroll_sensitivity =
7487 EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
7488
7489 // Use a minimum fast_scroll_sensitivity for same reason above
7490 let fast_scroll_sensitivity = EditorSettings::get_global(cx)
7491 .fast_scroll_sensitivity
7492 .max(0.01);
7493
7494 move |event: &ScrollWheelEvent, phase, window, cx| {
7495 let scroll_sensitivity = {
7496 if event.modifiers.alt {
7497 fast_scroll_sensitivity
7498 } else {
7499 base_scroll_sensitivity
7500 }
7501 };
7502
7503 if phase == DispatchPhase::Bubble && hitbox.should_handle_scroll(window) {
7504 delta = delta.coalesce(event.delta);
7505 editor.update(cx, |editor, cx| {
7506 let position_map: &PositionMap = &position_map;
7507
7508 let line_height = position_map.line_height;
7509 let max_glyph_advance = position_map.em_advance;
7510 let (delta, axis) = match delta {
7511 gpui::ScrollDelta::Pixels(mut pixels) => {
7512 //Trackpad
7513 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
7514 (pixels, axis)
7515 }
7516
7517 gpui::ScrollDelta::Lines(lines) => {
7518 //Not trackpad
7519 let pixels =
7520 point(lines.x * max_glyph_advance, lines.y * line_height);
7521 (pixels, None)
7522 }
7523 };
7524
7525 let current_scroll_position = position_map.snapshot.scroll_position();
7526 let x = (current_scroll_position.x
7527 * ScrollPixelOffset::from(max_glyph_advance)
7528 - ScrollPixelOffset::from(delta.x * scroll_sensitivity))
7529 / ScrollPixelOffset::from(max_glyph_advance);
7530 let y = (current_scroll_position.y * ScrollPixelOffset::from(line_height)
7531 - ScrollPixelOffset::from(delta.y * scroll_sensitivity))
7532 / ScrollPixelOffset::from(line_height);
7533 let mut scroll_position =
7534 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
7535 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
7536 if forbid_vertical_scroll {
7537 scroll_position.y = current_scroll_position.y;
7538 }
7539
7540 if scroll_position != current_scroll_position {
7541 editor.scroll(scroll_position, axis, window, cx);
7542 cx.stop_propagation();
7543 } else if y < 0. {
7544 // Due to clamping, we may fail to detect cases of overscroll to the top;
7545 // We want the scroll manager to get an update in such cases and detect the change of direction
7546 // on the next frame.
7547 cx.notify();
7548 }
7549 });
7550 }
7551 }
7552 });
7553 }
7554
7555 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
7556 if layout.mode.is_minimap() {
7557 return;
7558 }
7559
7560 self.paint_scroll_wheel_listener(layout, window, cx);
7561
7562 window.on_mouse_event({
7563 let position_map = layout.position_map.clone();
7564 let editor = self.editor.clone();
7565 let line_numbers = layout.line_numbers.clone();
7566
7567 move |event: &MouseDownEvent, phase, window, cx| {
7568 if phase == DispatchPhase::Bubble {
7569 match event.button {
7570 MouseButton::Left => editor.update(cx, |editor, cx| {
7571 let pending_mouse_down = editor
7572 .pending_mouse_down
7573 .get_or_insert_with(Default::default)
7574 .clone();
7575
7576 *pending_mouse_down.borrow_mut() = Some(event.clone());
7577
7578 Self::mouse_left_down(
7579 editor,
7580 event,
7581 &position_map,
7582 line_numbers.as_ref(),
7583 window,
7584 cx,
7585 );
7586 }),
7587 MouseButton::Right => editor.update(cx, |editor, cx| {
7588 Self::mouse_right_down(editor, event, &position_map, window, cx);
7589 }),
7590 MouseButton::Middle => editor.update(cx, |editor, cx| {
7591 Self::mouse_middle_down(editor, event, &position_map, window, cx);
7592 }),
7593 _ => {}
7594 };
7595 }
7596 }
7597 });
7598
7599 window.on_mouse_event({
7600 let editor = self.editor.clone();
7601 let position_map = layout.position_map.clone();
7602
7603 move |event: &MouseUpEvent, phase, window, cx| {
7604 if phase == DispatchPhase::Bubble {
7605 editor.update(cx, |editor, cx| {
7606 Self::mouse_up(editor, event, &position_map, window, cx)
7607 });
7608 }
7609 }
7610 });
7611
7612 window.on_mouse_event({
7613 let editor = self.editor.clone();
7614 let position_map = layout.position_map.clone();
7615 let mut captured_mouse_down = None;
7616
7617 move |event: &MouseUpEvent, phase, window, cx| match phase {
7618 // Clear the pending mouse down during the capture phase,
7619 // so that it happens even if another event handler stops
7620 // propagation.
7621 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
7622 let pending_mouse_down = editor
7623 .pending_mouse_down
7624 .get_or_insert_with(Default::default)
7625 .clone();
7626
7627 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
7628 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
7629 captured_mouse_down = pending_mouse_down.take();
7630 window.refresh();
7631 }
7632 }),
7633 // Fire click handlers during the bubble phase.
7634 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
7635 if let Some(mouse_down) = captured_mouse_down.take() {
7636 let event = ClickEvent::Mouse(MouseClickEvent {
7637 down: mouse_down,
7638 up: event.clone(),
7639 });
7640 Self::click(editor, &event, &position_map, window, cx);
7641 }
7642 }),
7643 }
7644 });
7645
7646 window.on_mouse_event({
7647 let position_map = layout.position_map.clone();
7648 let editor = self.editor.clone();
7649
7650 move |event: &MousePressureEvent, phase, window, cx| {
7651 if phase == DispatchPhase::Bubble {
7652 editor.update(cx, |editor, cx| {
7653 Self::pressure_click(editor, &event, &position_map, window, cx);
7654 })
7655 }
7656 }
7657 });
7658
7659 window.on_mouse_event({
7660 let position_map = layout.position_map.clone();
7661 let editor = self.editor.clone();
7662 let split_side = self.split_side;
7663
7664 move |event: &MouseMoveEvent, phase, window, cx| {
7665 if phase == DispatchPhase::Bubble {
7666 editor.update(cx, |editor, cx| {
7667 if editor.hover_state.focused(window, cx) {
7668 return;
7669 }
7670 if event.pressed_button == Some(MouseButton::Left)
7671 || event.pressed_button == Some(MouseButton::Middle)
7672 {
7673 Self::mouse_dragged(editor, event, &position_map, window, cx)
7674 }
7675
7676 Self::mouse_moved(editor, event, &position_map, split_side, window, cx)
7677 });
7678 }
7679 }
7680 });
7681 }
7682
7683 fn shape_line_number(
7684 &self,
7685 text: SharedString,
7686 color: Hsla,
7687 window: &mut Window,
7688 ) -> ShapedLine {
7689 let run = TextRun {
7690 len: text.len(),
7691 font: self.style.text.font(),
7692 color,
7693 ..Default::default()
7694 };
7695 window.text_system().shape_line(
7696 text,
7697 self.style.text.font_size.to_pixels(window.rem_size()),
7698 &[run],
7699 None,
7700 )
7701 }
7702
7703 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
7704 let unstaged = status.has_secondary_hunk();
7705 let unstaged_hollow = matches!(
7706 ProjectSettings::get_global(cx).git.hunk_style,
7707 GitHunkStyleSetting::UnstagedHollow
7708 );
7709
7710 unstaged == unstaged_hollow
7711 }
7712
7713 #[cfg(debug_assertions)]
7714 fn layout_debug_ranges(
7715 selections: &mut Vec<(PlayerColor, Vec<SelectionLayout>)>,
7716 anchor_range: Range<Anchor>,
7717 display_snapshot: &DisplaySnapshot,
7718 cx: &App,
7719 ) {
7720 let theme = cx.theme();
7721 text::debug::GlobalDebugRanges::with_locked(|debug_ranges| {
7722 if debug_ranges.ranges.is_empty() {
7723 return;
7724 }
7725 let buffer_snapshot = &display_snapshot.buffer_snapshot();
7726 for (buffer, buffer_range, excerpt_id) in
7727 buffer_snapshot.range_to_buffer_ranges(anchor_range.start..=anchor_range.end)
7728 {
7729 let buffer_range =
7730 buffer.anchor_after(buffer_range.start)..buffer.anchor_before(buffer_range.end);
7731 selections.extend(debug_ranges.ranges.iter().flat_map(|debug_range| {
7732 let player_color = theme
7733 .players()
7734 .color_for_participant(debug_range.occurrence_index as u32 + 1);
7735 debug_range.ranges.iter().filter_map(move |range| {
7736 if range.start.buffer_id != Some(buffer.remote_id()) {
7737 return None;
7738 }
7739 let clipped_start = range.start.max(&buffer_range.start, buffer);
7740 let clipped_end = range.end.min(&buffer_range.end, buffer);
7741 let range = buffer_snapshot
7742 .anchor_range_in_excerpt(excerpt_id, *clipped_start..*clipped_end)?;
7743 let start = range.start.to_display_point(display_snapshot);
7744 let end = range.end.to_display_point(display_snapshot);
7745 let selection_layout = SelectionLayout {
7746 head: start,
7747 range: start..end,
7748 cursor_shape: CursorShape::Bar,
7749 is_newest: false,
7750 is_local: false,
7751 active_rows: start.row()..end.row(),
7752 user_name: Some(SharedString::new(debug_range.value.clone())),
7753 };
7754 Some((player_color, vec![selection_layout]))
7755 })
7756 }));
7757 }
7758 });
7759 }
7760}
7761
7762pub fn render_breadcrumb_text(
7763 mut segments: Vec<BreadcrumbText>,
7764 prefix: Option<gpui::AnyElement>,
7765 active_item: &dyn ItemHandle,
7766 multibuffer_header: bool,
7767 window: &mut Window,
7768 cx: &App,
7769) -> impl IntoElement {
7770 const MAX_SEGMENTS: usize = 12;
7771
7772 let element = h_flex().flex_grow().text_ui(cx);
7773
7774 let prefix_end_ix = cmp::min(segments.len(), MAX_SEGMENTS / 2);
7775 let suffix_start_ix = cmp::max(
7776 prefix_end_ix,
7777 segments.len().saturating_sub(MAX_SEGMENTS / 2),
7778 );
7779
7780 if suffix_start_ix > prefix_end_ix {
7781 segments.splice(
7782 prefix_end_ix..suffix_start_ix,
7783 Some(BreadcrumbText {
7784 text: "β―".into(),
7785 highlights: None,
7786 font: None,
7787 }),
7788 );
7789 }
7790
7791 let highlighted_segments = segments.into_iter().enumerate().map(|(index, segment)| {
7792 let mut text_style = window.text_style();
7793 if let Some(ref font) = segment.font {
7794 text_style.font_family = font.family.clone();
7795 text_style.font_features = font.features.clone();
7796 text_style.font_style = font.style;
7797 text_style.font_weight = font.weight;
7798 }
7799 text_style.color = Color::Muted.color(cx);
7800
7801 if index == 0
7802 && !workspace::TabBarSettings::get_global(cx).show
7803 && active_item.is_dirty(cx)
7804 && let Some(styled_element) = apply_dirty_filename_style(&segment, &text_style, cx)
7805 {
7806 return styled_element;
7807 }
7808
7809 StyledText::new(segment.text.replace('\n', "β"))
7810 .with_default_highlights(&text_style, segment.highlights.unwrap_or_default())
7811 .into_any()
7812 });
7813
7814 let breadcrumbs = Itertools::intersperse_with(highlighted_segments, || {
7815 Label::new("βΊ").color(Color::Placeholder).into_any_element()
7816 });
7817
7818 let breadcrumbs_stack = h_flex()
7819 .gap_1()
7820 .when(multibuffer_header, |this| {
7821 this.pl_2()
7822 .border_l_1()
7823 .border_color(cx.theme().colors().border.opacity(0.6))
7824 })
7825 .children(breadcrumbs);
7826
7827 let breadcrumbs = if let Some(prefix) = prefix {
7828 h_flex().gap_1p5().child(prefix).child(breadcrumbs_stack)
7829 } else {
7830 breadcrumbs_stack
7831 };
7832
7833 let editor = active_item
7834 .downcast::<Editor>()
7835 .map(|editor| editor.downgrade());
7836
7837 let has_project_path = active_item.project_path(cx).is_some();
7838
7839 match editor {
7840 Some(editor) => element
7841 .id("breadcrumb_container")
7842 .when(!multibuffer_header, |this| this.overflow_x_scroll())
7843 .child(
7844 ButtonLike::new("toggle outline view")
7845 .child(breadcrumbs)
7846 .when(multibuffer_header, |this| {
7847 this.style(ButtonStyle::Transparent)
7848 })
7849 .when(!multibuffer_header, |this| {
7850 let focus_handle = editor.upgrade().unwrap().focus_handle(&cx);
7851
7852 this.tooltip(Tooltip::element(move |_window, cx| {
7853 v_flex()
7854 .gap_1()
7855 .child(
7856 h_flex()
7857 .gap_1()
7858 .justify_between()
7859 .child(Label::new("Show Symbol Outline"))
7860 .child(ui::KeyBinding::for_action_in(
7861 &zed_actions::outline::ToggleOutline,
7862 &focus_handle,
7863 cx,
7864 )),
7865 )
7866 .when(has_project_path, |this| {
7867 this.child(
7868 h_flex()
7869 .gap_1()
7870 .justify_between()
7871 .pt_1()
7872 .border_t_1()
7873 .border_color(cx.theme().colors().border_variant)
7874 .child(Label::new("Right-Click to Copy Path")),
7875 )
7876 })
7877 .into_any_element()
7878 }))
7879 .on_click({
7880 let editor = editor.clone();
7881 move |_, window, cx| {
7882 if let Some((editor, callback)) = editor
7883 .upgrade()
7884 .zip(zed_actions::outline::TOGGLE_OUTLINE.get())
7885 {
7886 callback(editor.to_any_view(), window, cx);
7887 }
7888 }
7889 })
7890 .when(has_project_path, |this| {
7891 this.on_right_click({
7892 let editor = editor.clone();
7893 move |_, _, cx| {
7894 if let Some(abs_path) = editor.upgrade().and_then(|editor| {
7895 editor.update(cx, |editor, cx| {
7896 editor.target_file_abs_path(cx)
7897 })
7898 }) {
7899 if let Some(path_str) = abs_path.to_str() {
7900 cx.write_to_clipboard(ClipboardItem::new_string(
7901 path_str.to_string(),
7902 ));
7903 }
7904 }
7905 }
7906 })
7907 })
7908 }),
7909 )
7910 .into_any_element(),
7911 None => element
7912 .h(rems_from_px(22.)) // Match the height and padding of the `ButtonLike` in the other arm.
7913 .pl_1()
7914 .child(breadcrumbs)
7915 .into_any_element(),
7916 }
7917}
7918
7919fn apply_dirty_filename_style(
7920 segment: &BreadcrumbText,
7921 text_style: &gpui::TextStyle,
7922 cx: &App,
7923) -> Option<gpui::AnyElement> {
7924 let text = segment.text.replace('\n', "β");
7925
7926 let filename_position = std::path::Path::new(&segment.text)
7927 .file_name()
7928 .and_then(|f| {
7929 let filename_str = f.to_string_lossy();
7930 segment.text.rfind(filename_str.as_ref())
7931 })?;
7932
7933 let bold_weight = FontWeight::BOLD;
7934 let default_color = Color::Default.color(cx);
7935
7936 if filename_position == 0 {
7937 let mut filename_style = text_style.clone();
7938 filename_style.font_weight = bold_weight;
7939 filename_style.color = default_color;
7940
7941 return Some(
7942 StyledText::new(text)
7943 .with_default_highlights(&filename_style, [])
7944 .into_any(),
7945 );
7946 }
7947
7948 let highlight_style = gpui::HighlightStyle {
7949 font_weight: Some(bold_weight),
7950 color: Some(default_color),
7951 ..Default::default()
7952 };
7953
7954 let highlight = vec![(filename_position..text.len(), highlight_style)];
7955 Some(
7956 StyledText::new(text)
7957 .with_default_highlights(text_style, highlight)
7958 .into_any(),
7959 )
7960}
7961
7962fn file_status_label_color(file_status: Option<FileStatus>) -> Color {
7963 file_status.map_or(Color::Default, |status| {
7964 if status.is_conflicted() {
7965 Color::Conflict
7966 } else if status.is_modified() {
7967 Color::Modified
7968 } else if status.is_deleted() {
7969 Color::Disabled
7970 } else if status.is_created() {
7971 Color::Created
7972 } else {
7973 Color::Default
7974 }
7975 })
7976}
7977
7978pub(crate) fn header_jump_data(
7979 editor_snapshot: &EditorSnapshot,
7980 block_row_start: DisplayRow,
7981 height: u32,
7982 first_excerpt: &ExcerptInfo,
7983 latest_selection_anchors: &HashMap<BufferId, Anchor>,
7984) -> JumpData {
7985 let jump_target = if let Some(anchor) = latest_selection_anchors.get(&first_excerpt.buffer_id)
7986 && let Some(range) = editor_snapshot.context_range_for_excerpt(anchor.excerpt_id)
7987 && let Some(buffer) = editor_snapshot
7988 .buffer_snapshot()
7989 .buffer_for_excerpt(anchor.excerpt_id)
7990 {
7991 JumpTargetInExcerptInput {
7992 id: anchor.excerpt_id,
7993 buffer,
7994 excerpt_start_anchor: range.start,
7995 jump_anchor: anchor.text_anchor,
7996 }
7997 } else {
7998 JumpTargetInExcerptInput {
7999 id: first_excerpt.id,
8000 buffer: &first_excerpt.buffer,
8001 excerpt_start_anchor: first_excerpt.range.context.start,
8002 jump_anchor: first_excerpt.range.primary.start,
8003 }
8004 };
8005 header_jump_data_inner(editor_snapshot, block_row_start, height, &jump_target)
8006}
8007
8008struct JumpTargetInExcerptInput<'a> {
8009 id: ExcerptId,
8010 buffer: &'a language::BufferSnapshot,
8011 excerpt_start_anchor: text::Anchor,
8012 jump_anchor: text::Anchor,
8013}
8014
8015fn header_jump_data_inner(
8016 snapshot: &EditorSnapshot,
8017 block_row_start: DisplayRow,
8018 height: u32,
8019 for_excerpt: &JumpTargetInExcerptInput,
8020) -> JumpData {
8021 let buffer = &for_excerpt.buffer;
8022 let jump_position = language::ToPoint::to_point(&for_excerpt.jump_anchor, buffer);
8023 let excerpt_start = for_excerpt.excerpt_start_anchor;
8024 let rows_from_excerpt_start = if for_excerpt.jump_anchor == excerpt_start {
8025 0
8026 } else {
8027 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
8028 jump_position.row.saturating_sub(excerpt_start_point.row)
8029 };
8030
8031 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
8032 .saturating_sub(
8033 snapshot
8034 .scroll_anchor
8035 .scroll_position(&snapshot.display_snapshot)
8036 .y as u32,
8037 );
8038
8039 JumpData::MultiBufferPoint {
8040 excerpt_id: for_excerpt.id,
8041 anchor: for_excerpt.jump_anchor,
8042 position: jump_position,
8043 line_offset_from_top,
8044 }
8045}
8046
8047pub(crate) fn render_buffer_header(
8048 editor: &Entity<Editor>,
8049 for_excerpt: &ExcerptInfo,
8050 is_folded: bool,
8051 is_selected: bool,
8052 is_sticky: bool,
8053 jump_data: JumpData,
8054 window: &mut Window,
8055 cx: &mut App,
8056) -> impl IntoElement {
8057 let editor_read = editor.read(cx);
8058 let multi_buffer = editor_read.buffer.read(cx);
8059 let is_read_only = editor_read.read_only(cx);
8060 let editor_handle: &dyn ItemHandle = editor;
8061
8062 let breadcrumbs = if is_selected {
8063 editor_read.breadcrumbs_inner(cx)
8064 } else {
8065 None
8066 };
8067
8068 let file_status = multi_buffer
8069 .all_diff_hunks_expanded()
8070 .then(|| editor_read.status_for_buffer_id(for_excerpt.buffer_id, cx))
8071 .flatten();
8072 let indicator = multi_buffer
8073 .buffer(for_excerpt.buffer_id)
8074 .and_then(|buffer| {
8075 let buffer = buffer.read(cx);
8076 let indicator_color = match (buffer.has_conflict(), buffer.is_dirty()) {
8077 (true, _) => Some(Color::Warning),
8078 (_, true) => Some(Color::Accent),
8079 (false, false) => None,
8080 };
8081 indicator_color.map(|indicator_color| Indicator::dot().color(indicator_color))
8082 });
8083
8084 let include_root = editor_read
8085 .project
8086 .as_ref()
8087 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
8088 .unwrap_or_default();
8089 let file = for_excerpt.buffer.file();
8090 let can_open_excerpts = file.is_none_or(|file| file.can_open());
8091 let path_style = file.map(|file| file.path_style(cx));
8092 let relative_path = for_excerpt.buffer.resolve_file_path(include_root, cx);
8093 let (parent_path, filename) = if let Some(path) = &relative_path {
8094 if let Some(path_style) = path_style {
8095 let (dir, file_name) = path_style.split(path);
8096 (dir.map(|dir| dir.to_owned()), Some(file_name.to_owned()))
8097 } else {
8098 (None, Some(path.clone()))
8099 }
8100 } else {
8101 (None, None)
8102 };
8103 let focus_handle = editor_read.focus_handle(cx);
8104 let colors = cx.theme().colors();
8105
8106 let header = div()
8107 .id(("buffer-header", for_excerpt.buffer_id.to_proto()))
8108 .p_1()
8109 .w_full()
8110 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
8111 .child(
8112 h_flex()
8113 .size_full()
8114 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
8115 .pl_1()
8116 .pr_2()
8117 .rounded_sm()
8118 .gap_1p5()
8119 .when(is_sticky, |el| el.shadow_md())
8120 .border_1()
8121 .map(|border| {
8122 let border_color =
8123 if is_selected && is_folded && focus_handle.contains_focused(window, cx) {
8124 colors.border_focused
8125 } else {
8126 colors.border
8127 };
8128 border.border_color(border_color)
8129 })
8130 .bg(colors.editor_subheader_background)
8131 .hover(|style| style.bg(colors.element_hover))
8132 .map(|header| {
8133 let editor = editor.clone();
8134 let buffer_id = for_excerpt.buffer_id;
8135 let toggle_chevron_icon =
8136 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
8137 let button_size = rems_from_px(28.);
8138
8139 header.child(
8140 div()
8141 .hover(|style| style.bg(colors.element_selected))
8142 .rounded_xs()
8143 .child(
8144 ButtonLike::new("toggle-buffer-fold")
8145 .style(ButtonStyle::Transparent)
8146 .height(button_size.into())
8147 .width(button_size)
8148 .children(toggle_chevron_icon)
8149 .tooltip({
8150 let focus_handle = focus_handle.clone();
8151 let is_folded_for_tooltip = is_folded;
8152 move |_window, cx| {
8153 Tooltip::with_meta_in(
8154 if is_folded_for_tooltip {
8155 "Unfold Excerpt"
8156 } else {
8157 "Fold Excerpt"
8158 },
8159 Some(&ToggleFold),
8160 format!(
8161 "{} to toggle all",
8162 text_for_keystroke(
8163 &Modifiers::alt(),
8164 "click",
8165 cx
8166 )
8167 ),
8168 &focus_handle,
8169 cx,
8170 )
8171 }
8172 })
8173 .on_click(move |event, window, cx| {
8174 if event.modifiers().alt {
8175 editor.update(cx, |editor, cx| {
8176 editor.toggle_fold_all(&ToggleFoldAll, window, cx);
8177 });
8178 } else {
8179 if is_folded {
8180 editor.update(cx, |editor, cx| {
8181 editor.unfold_buffer(buffer_id, cx);
8182 });
8183 } else {
8184 editor.update(cx, |editor, cx| {
8185 editor.fold_buffer(buffer_id, cx);
8186 });
8187 }
8188 }
8189 }),
8190 ),
8191 )
8192 })
8193 .children(
8194 editor_read
8195 .addons
8196 .values()
8197 .filter_map(|addon| {
8198 addon.render_buffer_header_controls(for_excerpt, window, cx)
8199 })
8200 .take(1),
8201 )
8202 .when(!is_read_only, |this| {
8203 this.child(
8204 h_flex()
8205 .size_3()
8206 .justify_center()
8207 .flex_shrink_0()
8208 .children(indicator),
8209 )
8210 })
8211 .child(
8212 h_flex()
8213 .cursor_pointer()
8214 .id("path_header_block")
8215 .min_w_0()
8216 .size_full()
8217 .gap_1()
8218 .justify_between()
8219 .overflow_hidden()
8220 .child(h_flex().min_w_0().flex_1().gap_0p5().overflow_hidden().map(
8221 |path_header| {
8222 let filename = filename
8223 .map(SharedString::from)
8224 .unwrap_or_else(|| "untitled".into());
8225
8226 let full_path = match parent_path.as_deref() {
8227 Some(parent) if !parent.is_empty() => {
8228 format!("{}{}", parent, filename.as_str())
8229 }
8230 _ => filename.as_str().to_string(),
8231 };
8232
8233 path_header
8234 .child(
8235 ButtonLike::new("filename-button")
8236 .when(ItemSettings::get_global(cx).file_icons, |this| {
8237 let path = path::Path::new(filename.as_str());
8238 let icon = FileIcons::get_icon(path, cx)
8239 .unwrap_or_default();
8240
8241 this.child(
8242 Icon::from_path(icon).color(Color::Muted),
8243 )
8244 })
8245 .child(
8246 Label::new(filename)
8247 .single_line()
8248 .color(file_status_label_color(file_status))
8249 .buffer_font(cx)
8250 .when(
8251 file_status.is_some_and(|s| s.is_deleted()),
8252 |label| label.strikethrough(),
8253 ),
8254 )
8255 .tooltip(move |_, cx| {
8256 Tooltip::with_meta(
8257 "Open File",
8258 None,
8259 full_path.clone(),
8260 cx,
8261 )
8262 })
8263 .on_click(window.listener_for(editor, {
8264 let jump_data = jump_data.clone();
8265 move |editor, e: &ClickEvent, window, cx| {
8266 editor.open_excerpts_common(
8267 Some(jump_data.clone()),
8268 e.modifiers().secondary(),
8269 window,
8270 cx,
8271 );
8272 }
8273 })),
8274 )
8275 .when_some(parent_path, |then, path| {
8276 then.child(
8277 Label::new(path)
8278 .buffer_font(cx)
8279 .truncate_start()
8280 .color(
8281 if file_status
8282 .is_some_and(FileStatus::is_deleted)
8283 {
8284 Color::Custom(colors.text_disabled)
8285 } else {
8286 Color::Custom(colors.text_muted)
8287 },
8288 ),
8289 )
8290 })
8291 .when(!for_excerpt.buffer.capability.editable(), |el| {
8292 el.child(Icon::new(IconName::FileLock).color(Color::Muted))
8293 })
8294 .when_some(breadcrumbs, |then, breadcrumbs| {
8295 then.child(render_breadcrumb_text(
8296 breadcrumbs,
8297 None,
8298 editor_handle,
8299 true,
8300 window,
8301 cx,
8302 ))
8303 })
8304 },
8305 ))
8306 .when(
8307 can_open_excerpts && is_selected && relative_path.is_some(),
8308 |el| {
8309 el.child(
8310 Button::new("open-file-button", "Open File")
8311 .style(ButtonStyle::OutlinedGhost)
8312 .key_binding(KeyBinding::for_action_in(
8313 &OpenExcerpts,
8314 &focus_handle,
8315 cx,
8316 ))
8317 .on_click(window.listener_for(editor, {
8318 let jump_data = jump_data.clone();
8319 move |editor, e: &ClickEvent, window, cx| {
8320 editor.open_excerpts_common(
8321 Some(jump_data.clone()),
8322 e.modifiers().secondary(),
8323 window,
8324 cx,
8325 );
8326 }
8327 })),
8328 )
8329 },
8330 )
8331 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
8332 .on_click(window.listener_for(editor, {
8333 let buffer_id = for_excerpt.buffer_id;
8334 move |editor, e: &ClickEvent, window, cx| {
8335 if e.modifiers().alt {
8336 editor.open_excerpts_common(
8337 Some(jump_data.clone()),
8338 e.modifiers().secondary(),
8339 window,
8340 cx,
8341 );
8342 return;
8343 }
8344
8345 if is_folded {
8346 editor.unfold_buffer(buffer_id, cx);
8347 } else {
8348 editor.fold_buffer(buffer_id, cx);
8349 }
8350 }
8351 })),
8352 ),
8353 );
8354
8355 let file = for_excerpt.buffer.file().cloned();
8356 let editor = editor.clone();
8357
8358 right_click_menu("buffer-header-context-menu")
8359 .trigger(move |_, _, _| header)
8360 .menu(move |window, cx| {
8361 let menu_context = focus_handle.clone();
8362 let editor = editor.clone();
8363 let file = file.clone();
8364 ContextMenu::build(window, cx, move |mut menu, window, cx| {
8365 if let Some(file) = file
8366 && let Some(project) = editor.read(cx).project()
8367 && let Some(worktree) =
8368 project.read(cx).worktree_for_id(file.worktree_id(cx), cx)
8369 {
8370 let path_style = file.path_style(cx);
8371 let worktree = worktree.read(cx);
8372 let relative_path = file.path();
8373 let entry_for_path = worktree.entry_for_path(relative_path);
8374 let abs_path = entry_for_path.map(|e| {
8375 e.canonical_path
8376 .as_deref()
8377 .map_or_else(|| worktree.absolutize(relative_path), Path::to_path_buf)
8378 });
8379 let has_relative_path = worktree.root_entry().is_some_and(Entry::is_dir);
8380
8381 let parent_abs_path = abs_path
8382 .as_ref()
8383 .and_then(|abs_path| Some(abs_path.parent()?.to_path_buf()));
8384 let relative_path = has_relative_path
8385 .then_some(relative_path)
8386 .map(ToOwned::to_owned);
8387
8388 let visible_in_project_panel = relative_path.is_some() && worktree.is_visible();
8389 let reveal_in_project_panel = entry_for_path
8390 .filter(|_| visible_in_project_panel)
8391 .map(|entry| entry.id);
8392 menu = menu
8393 .when_some(abs_path, |menu, abs_path| {
8394 menu.entry(
8395 "Copy Path",
8396 Some(Box::new(zed_actions::workspace::CopyPath)),
8397 window.handler_for(&editor, move |_, _, cx| {
8398 cx.write_to_clipboard(ClipboardItem::new_string(
8399 abs_path.to_string_lossy().into_owned(),
8400 ));
8401 }),
8402 )
8403 })
8404 .when_some(relative_path, |menu, relative_path| {
8405 menu.entry(
8406 "Copy Relative Path",
8407 Some(Box::new(zed_actions::workspace::CopyRelativePath)),
8408 window.handler_for(&editor, move |_, _, cx| {
8409 cx.write_to_clipboard(ClipboardItem::new_string(
8410 relative_path.display(path_style).to_string(),
8411 ));
8412 }),
8413 )
8414 })
8415 .when(
8416 reveal_in_project_panel.is_some() || parent_abs_path.is_some(),
8417 |menu| menu.separator(),
8418 )
8419 .when_some(reveal_in_project_panel, |menu, entry_id| {
8420 menu.entry(
8421 "Reveal In Project Panel",
8422 Some(Box::new(RevealInProjectPanel::default())),
8423 window.handler_for(&editor, move |editor, _, cx| {
8424 if let Some(project) = &mut editor.project {
8425 project.update(cx, |_, cx| {
8426 cx.emit(project::Event::RevealInProjectPanel(entry_id))
8427 });
8428 }
8429 }),
8430 )
8431 })
8432 .when_some(parent_abs_path, |menu, parent_abs_path| {
8433 menu.entry(
8434 "Open in Terminal",
8435 Some(Box::new(OpenInTerminal)),
8436 window.handler_for(&editor, move |_, window, cx| {
8437 window.dispatch_action(
8438 OpenTerminal {
8439 working_directory: parent_abs_path.clone(),
8440 local: false,
8441 }
8442 .boxed_clone(),
8443 cx,
8444 );
8445 }),
8446 )
8447 });
8448 }
8449
8450 menu.context(menu_context)
8451 })
8452 })
8453}
8454
8455pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
8456
8457impl AcceptEditPredictionBinding {
8458 pub fn keystroke(&self) -> Option<&KeybindingKeystroke> {
8459 if let Some(binding) = self.0.as_ref() {
8460 match &binding.keystrokes() {
8461 [keystroke, ..] => Some(keystroke),
8462 _ => None,
8463 }
8464 } else {
8465 None
8466 }
8467 }
8468}
8469
8470fn prepaint_gutter_button(
8471 mut button: AnyElement,
8472 row: DisplayRow,
8473 line_height: Pixels,
8474 gutter_dimensions: &GutterDimensions,
8475 scroll_position: gpui::Point<ScrollOffset>,
8476 gutter_hitbox: &Hitbox,
8477 window: &mut Window,
8478 cx: &mut App,
8479) -> AnyElement {
8480 let available_space = size(
8481 AvailableSpace::MinContent,
8482 AvailableSpace::Definite(line_height),
8483 );
8484 let indicator_size = button.layout_as_root(available_space, window, cx);
8485 let git_gutter_width = EditorElement::gutter_strip_width(line_height)
8486 + gutter_dimensions
8487 .git_blame_entries_width
8488 .unwrap_or_default();
8489
8490 let x = git_gutter_width + px(2.);
8491
8492 let mut y =
8493 Pixels::from((row.as_f64() - scroll_position.y) * ScrollPixelOffset::from(line_height));
8494 y += (line_height - indicator_size.height) / 2.;
8495
8496 button.prepaint_as_root(
8497 gutter_hitbox.origin + point(x, y),
8498 available_space,
8499 window,
8500 cx,
8501 );
8502 button
8503}
8504
8505fn render_inline_blame_entry(
8506 blame_entry: BlameEntry,
8507 style: &EditorStyle,
8508 cx: &mut App,
8509) -> Option<AnyElement> {
8510 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
8511 renderer.render_inline_blame_entry(&style.text, blame_entry, cx)
8512}
8513
8514fn render_blame_entry_popover(
8515 blame_entry: BlameEntry,
8516 scroll_handle: ScrollHandle,
8517 commit_message: Option<ParsedCommitMessage>,
8518 markdown: Entity<Markdown>,
8519 workspace: WeakEntity<Workspace>,
8520 blame: &Entity<GitBlame>,
8521 buffer: BufferId,
8522 window: &mut Window,
8523 cx: &mut App,
8524) -> Option<AnyElement> {
8525 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
8526 let blame = blame.read(cx);
8527 let repository = blame.repository(cx, buffer)?;
8528 renderer.render_blame_entry_popover(
8529 blame_entry,
8530 scroll_handle,
8531 commit_message,
8532 markdown,
8533 repository,
8534 workspace,
8535 window,
8536 cx,
8537 )
8538}
8539
8540fn render_blame_entry(
8541 ix: usize,
8542 blame: &Entity<GitBlame>,
8543 blame_entry: BlameEntry,
8544 style: &EditorStyle,
8545 last_used_color: &mut Option<(Hsla, Oid)>,
8546 editor: Entity<Editor>,
8547 workspace: Entity<Workspace>,
8548 buffer: BufferId,
8549 renderer: &dyn BlameRenderer,
8550 window: &mut Window,
8551 cx: &mut App,
8552) -> Option<AnyElement> {
8553 let index: u32 = blame_entry.sha.into();
8554 let mut sha_color = cx.theme().players().color_for_participant(index).cursor;
8555
8556 // If the last color we used is the same as the one we get for this line, but
8557 // the commit SHAs are different, then we try again to get a different color.
8558 if let Some((color, sha)) = *last_used_color
8559 && sha != blame_entry.sha
8560 && color == sha_color
8561 {
8562 sha_color = cx.theme().players().color_for_participant(index + 1).cursor;
8563 }
8564 last_used_color.replace((sha_color, blame_entry.sha));
8565
8566 let blame = blame.read(cx);
8567 let details = blame.details_for_entry(buffer, &blame_entry);
8568 let repository = blame.repository(cx, buffer)?;
8569 renderer.render_blame_entry(
8570 &style.text,
8571 blame_entry,
8572 details,
8573 repository,
8574 workspace.downgrade(),
8575 editor,
8576 ix,
8577 sha_color,
8578 window,
8579 cx,
8580 )
8581}
8582
8583#[derive(Debug)]
8584pub(crate) struct LineWithInvisibles {
8585 fragments: SmallVec<[LineFragment; 1]>,
8586 invisibles: Vec<Invisible>,
8587 len: usize,
8588 pub(crate) width: Pixels,
8589 font_size: Pixels,
8590}
8591
8592enum LineFragment {
8593 Text(ShapedLine),
8594 Element {
8595 id: ChunkRendererId,
8596 element: Option<AnyElement>,
8597 size: Size<Pixels>,
8598 len: usize,
8599 },
8600}
8601
8602impl fmt::Debug for LineFragment {
8603 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
8604 match self {
8605 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
8606 LineFragment::Element { size, len, .. } => f
8607 .debug_struct("Element")
8608 .field("size", size)
8609 .field("len", len)
8610 .finish(),
8611 }
8612 }
8613}
8614
8615impl LineWithInvisibles {
8616 fn from_chunks<'a>(
8617 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
8618 editor_style: &EditorStyle,
8619 max_line_len: usize,
8620 max_line_count: usize,
8621 editor_mode: &EditorMode,
8622 text_width: Pixels,
8623 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8624 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
8625 window: &mut Window,
8626 cx: &mut App,
8627 ) -> Vec<Self> {
8628 let text_style = &editor_style.text;
8629 let mut layouts = Vec::with_capacity(max_line_count);
8630 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
8631 let mut line = String::new();
8632 let mut invisibles = Vec::new();
8633 let mut width = Pixels::ZERO;
8634 let mut len = 0;
8635 let mut styles = Vec::new();
8636 let mut non_whitespace_added = false;
8637 let mut row = 0;
8638 let mut line_exceeded_max_len = false;
8639 let font_size = text_style.font_size.to_pixels(window.rem_size());
8640 let min_contrast = EditorSettings::get_global(cx).minimum_contrast_for_highlights;
8641
8642 let ellipsis = SharedString::from("β―");
8643
8644 for highlighted_chunk in chunks.chain([HighlightedChunk {
8645 text: "\n",
8646 style: None,
8647 is_tab: false,
8648 is_inlay: false,
8649 replacement: None,
8650 }]) {
8651 if let Some(replacement) = highlighted_chunk.replacement {
8652 if !line.is_empty() {
8653 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8654 let text_runs: &[TextRun] = if segments.is_empty() {
8655 &styles
8656 } else {
8657 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8658 };
8659 let shaped_line = window.text_system().shape_line(
8660 line.clone().into(),
8661 font_size,
8662 text_runs,
8663 None,
8664 );
8665 width += shaped_line.width;
8666 len += shaped_line.len;
8667 fragments.push(LineFragment::Text(shaped_line));
8668 line.clear();
8669 styles.clear();
8670 }
8671
8672 match replacement {
8673 ChunkReplacement::Renderer(renderer) => {
8674 let available_width = if renderer.constrain_width {
8675 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
8676 ellipsis.clone()
8677 } else {
8678 SharedString::from(Arc::from(highlighted_chunk.text))
8679 };
8680 let shaped_line = window.text_system().shape_line(
8681 chunk,
8682 font_size,
8683 &[text_style.to_run(highlighted_chunk.text.len())],
8684 None,
8685 );
8686 AvailableSpace::Definite(shaped_line.width)
8687 } else {
8688 AvailableSpace::MinContent
8689 };
8690
8691 let mut element = (renderer.render)(&mut ChunkRendererContext {
8692 context: cx,
8693 window,
8694 max_width: text_width,
8695 });
8696 let line_height = text_style.line_height_in_pixels(window.rem_size());
8697 let size = element.layout_as_root(
8698 size(available_width, AvailableSpace::Definite(line_height)),
8699 window,
8700 cx,
8701 );
8702
8703 width += size.width;
8704 len += highlighted_chunk.text.len();
8705 fragments.push(LineFragment::Element {
8706 id: renderer.id,
8707 element: Some(element),
8708 size,
8709 len: highlighted_chunk.text.len(),
8710 });
8711 }
8712 ChunkReplacement::Str(x) => {
8713 let text_style = if let Some(style) = highlighted_chunk.style {
8714 Cow::Owned(text_style.clone().highlight(style))
8715 } else {
8716 Cow::Borrowed(text_style)
8717 };
8718
8719 let run = TextRun {
8720 len: x.len(),
8721 font: text_style.font(),
8722 color: text_style.color,
8723 background_color: text_style.background_color,
8724 underline: text_style.underline,
8725 strikethrough: text_style.strikethrough,
8726 };
8727 let line_layout = window
8728 .text_system()
8729 .shape_line(x, font_size, &[run], None)
8730 .with_len(highlighted_chunk.text.len());
8731
8732 width += line_layout.width;
8733 len += highlighted_chunk.text.len();
8734 fragments.push(LineFragment::Text(line_layout))
8735 }
8736 }
8737 } else {
8738 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
8739 if ix > 0 {
8740 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8741 let text_runs = if segments.is_empty() {
8742 &styles
8743 } else {
8744 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8745 };
8746 let shaped_line = window.text_system().shape_line(
8747 line.clone().into(),
8748 font_size,
8749 text_runs,
8750 None,
8751 );
8752 width += shaped_line.width;
8753 len += shaped_line.len;
8754 fragments.push(LineFragment::Text(shaped_line));
8755 layouts.push(Self {
8756 width: mem::take(&mut width),
8757 len: mem::take(&mut len),
8758 fragments: mem::take(&mut fragments),
8759 invisibles: std::mem::take(&mut invisibles),
8760 font_size,
8761 });
8762
8763 line.clear();
8764 styles.clear();
8765 row += 1;
8766 line_exceeded_max_len = false;
8767 non_whitespace_added = false;
8768 if row == max_line_count {
8769 return layouts;
8770 }
8771 }
8772
8773 if !line_chunk.is_empty() && !line_exceeded_max_len {
8774 let text_style = if let Some(style) = highlighted_chunk.style {
8775 Cow::Owned(text_style.clone().highlight(style))
8776 } else {
8777 Cow::Borrowed(text_style)
8778 };
8779
8780 if line.len() + line_chunk.len() > max_line_len {
8781 let mut chunk_len = max_line_len - line.len();
8782 while !line_chunk.is_char_boundary(chunk_len) {
8783 chunk_len -= 1;
8784 }
8785 line_chunk = &line_chunk[..chunk_len];
8786 line_exceeded_max_len = true;
8787 }
8788
8789 styles.push(TextRun {
8790 len: line_chunk.len(),
8791 font: text_style.font(),
8792 color: text_style.color,
8793 background_color: text_style.background_color,
8794 underline: text_style.underline,
8795 strikethrough: text_style.strikethrough,
8796 });
8797
8798 if editor_mode.is_full() && !highlighted_chunk.is_inlay {
8799 // Line wrap pads its contents with fake whitespaces,
8800 // avoid printing them
8801 let is_soft_wrapped = is_row_soft_wrapped(row);
8802 if highlighted_chunk.is_tab {
8803 if non_whitespace_added || !is_soft_wrapped {
8804 invisibles.push(Invisible::Tab {
8805 line_start_offset: line.len(),
8806 line_end_offset: line.len() + line_chunk.len(),
8807 });
8808 }
8809 } else {
8810 invisibles.extend(line_chunk.char_indices().filter_map(
8811 |(index, c)| {
8812 let is_whitespace = c.is_whitespace();
8813 non_whitespace_added |= !is_whitespace;
8814 if is_whitespace
8815 && (non_whitespace_added || !is_soft_wrapped)
8816 {
8817 Some(Invisible::Whitespace {
8818 line_offset: line.len() + index,
8819 })
8820 } else {
8821 None
8822 }
8823 },
8824 ))
8825 }
8826 }
8827
8828 line.push_str(line_chunk);
8829 }
8830 }
8831 }
8832 }
8833
8834 layouts
8835 }
8836
8837 /// Takes text runs and non-overlapping left-to-right background ranges with color.
8838 /// Returns new text runs with adjusted contrast as per background ranges.
8839 fn split_runs_by_bg_segments(
8840 text_runs: &[TextRun],
8841 bg_segments: &[(Range<DisplayPoint>, Hsla)],
8842 min_contrast: f32,
8843 start_col_offset: usize,
8844 ) -> Vec<TextRun> {
8845 let mut output_runs: Vec<TextRun> = Vec::with_capacity(text_runs.len());
8846 let mut line_col = start_col_offset;
8847 let mut segment_ix = 0usize;
8848
8849 for text_run in text_runs.iter() {
8850 let run_start_col = line_col;
8851 let run_end_col = run_start_col + text_run.len;
8852 while segment_ix < bg_segments.len()
8853 && (bg_segments[segment_ix].0.end.column() as usize) <= run_start_col
8854 {
8855 segment_ix += 1;
8856 }
8857 let mut cursor_col = run_start_col;
8858 let mut local_segment_ix = segment_ix;
8859 while local_segment_ix < bg_segments.len() {
8860 let (range, segment_color) = &bg_segments[local_segment_ix];
8861 let segment_start_col = range.start.column() as usize;
8862 let segment_end_col = range.end.column() as usize;
8863 if segment_start_col >= run_end_col {
8864 break;
8865 }
8866 if segment_start_col > cursor_col {
8867 let span_len = segment_start_col - cursor_col;
8868 output_runs.push(TextRun {
8869 len: span_len,
8870 font: text_run.font.clone(),
8871 color: text_run.color,
8872 background_color: text_run.background_color,
8873 underline: text_run.underline,
8874 strikethrough: text_run.strikethrough,
8875 });
8876 cursor_col = segment_start_col;
8877 }
8878 let segment_slice_end_col = segment_end_col.min(run_end_col);
8879 if segment_slice_end_col > cursor_col {
8880 let new_text_color =
8881 ensure_minimum_contrast(text_run.color, *segment_color, min_contrast);
8882 output_runs.push(TextRun {
8883 len: segment_slice_end_col - cursor_col,
8884 font: text_run.font.clone(),
8885 color: new_text_color,
8886 background_color: text_run.background_color,
8887 underline: text_run.underline,
8888 strikethrough: text_run.strikethrough,
8889 });
8890 cursor_col = segment_slice_end_col;
8891 }
8892 if segment_end_col >= run_end_col {
8893 break;
8894 }
8895 local_segment_ix += 1;
8896 }
8897 if cursor_col < run_end_col {
8898 output_runs.push(TextRun {
8899 len: run_end_col - cursor_col,
8900 font: text_run.font.clone(),
8901 color: text_run.color,
8902 background_color: text_run.background_color,
8903 underline: text_run.underline,
8904 strikethrough: text_run.strikethrough,
8905 });
8906 }
8907 line_col = run_end_col;
8908 segment_ix = local_segment_ix;
8909 }
8910 output_runs
8911 }
8912
8913 fn prepaint(
8914 &mut self,
8915 line_height: Pixels,
8916 scroll_position: gpui::Point<ScrollOffset>,
8917 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
8918 row: DisplayRow,
8919 content_origin: gpui::Point<Pixels>,
8920 line_elements: &mut SmallVec<[AnyElement; 1]>,
8921 window: &mut Window,
8922 cx: &mut App,
8923 ) {
8924 let line_y = f32::from(line_height) * Pixels::from(row.as_f64() - scroll_position.y);
8925 self.prepaint_with_custom_offset(
8926 line_height,
8927 scroll_pixel_position,
8928 content_origin,
8929 line_y,
8930 line_elements,
8931 window,
8932 cx,
8933 );
8934 }
8935
8936 fn prepaint_with_custom_offset(
8937 &mut self,
8938 line_height: Pixels,
8939 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
8940 content_origin: gpui::Point<Pixels>,
8941 line_y: Pixels,
8942 line_elements: &mut SmallVec<[AnyElement; 1]>,
8943 window: &mut Window,
8944 cx: &mut App,
8945 ) {
8946 let mut fragment_origin =
8947 content_origin + gpui::point(Pixels::from(-scroll_pixel_position.x), line_y);
8948 for fragment in &mut self.fragments {
8949 match fragment {
8950 LineFragment::Text(line) => {
8951 fragment_origin.x += line.width;
8952 }
8953 LineFragment::Element { element, size, .. } => {
8954 let mut element = element
8955 .take()
8956 .expect("you can't prepaint LineWithInvisibles twice");
8957
8958 // Center the element vertically within the line.
8959 let mut element_origin = fragment_origin;
8960 element_origin.y += (line_height - size.height) / 2.;
8961 element.prepaint_at(element_origin, window, cx);
8962 line_elements.push(element);
8963
8964 fragment_origin.x += size.width;
8965 }
8966 }
8967 }
8968 }
8969
8970 fn draw(
8971 &self,
8972 layout: &EditorLayout,
8973 row: DisplayRow,
8974 content_origin: gpui::Point<Pixels>,
8975 whitespace_setting: ShowWhitespaceSetting,
8976 selection_ranges: &[Range<DisplayPoint>],
8977 window: &mut Window,
8978 cx: &mut App,
8979 ) {
8980 self.draw_with_custom_offset(
8981 layout,
8982 row,
8983 content_origin,
8984 layout.position_map.line_height
8985 * (row.as_f64() - layout.position_map.scroll_position.y) as f32,
8986 whitespace_setting,
8987 selection_ranges,
8988 window,
8989 cx,
8990 );
8991 }
8992
8993 fn draw_with_custom_offset(
8994 &self,
8995 layout: &EditorLayout,
8996 row: DisplayRow,
8997 content_origin: gpui::Point<Pixels>,
8998 line_y: Pixels,
8999 whitespace_setting: ShowWhitespaceSetting,
9000 selection_ranges: &[Range<DisplayPoint>],
9001 window: &mut Window,
9002 cx: &mut App,
9003 ) {
9004 let line_height = layout.position_map.line_height;
9005 let mut fragment_origin = content_origin
9006 + gpui::point(
9007 Pixels::from(-layout.position_map.scroll_pixel_position.x),
9008 line_y,
9009 );
9010
9011 for fragment in &self.fragments {
9012 match fragment {
9013 LineFragment::Text(line) => {
9014 line.paint(
9015 fragment_origin,
9016 line_height,
9017 layout.text_align,
9018 Some(layout.content_width),
9019 window,
9020 cx,
9021 )
9022 .log_err();
9023 fragment_origin.x += line.width;
9024 }
9025 LineFragment::Element { size, .. } => {
9026 fragment_origin.x += size.width;
9027 }
9028 }
9029 }
9030
9031 self.draw_invisibles(
9032 selection_ranges,
9033 layout,
9034 content_origin,
9035 line_y,
9036 row,
9037 line_height,
9038 whitespace_setting,
9039 window,
9040 cx,
9041 );
9042 }
9043
9044 fn draw_background(
9045 &self,
9046 layout: &EditorLayout,
9047 row: DisplayRow,
9048 content_origin: gpui::Point<Pixels>,
9049 window: &mut Window,
9050 cx: &mut App,
9051 ) {
9052 let line_height = layout.position_map.line_height;
9053 let line_y = line_height * (row.as_f64() - layout.position_map.scroll_position.y) as f32;
9054
9055 let mut fragment_origin = content_origin
9056 + gpui::point(
9057 Pixels::from(-layout.position_map.scroll_pixel_position.x),
9058 line_y,
9059 );
9060
9061 for fragment in &self.fragments {
9062 match fragment {
9063 LineFragment::Text(line) => {
9064 line.paint_background(
9065 fragment_origin,
9066 line_height,
9067 layout.text_align,
9068 Some(layout.content_width),
9069 window,
9070 cx,
9071 )
9072 .log_err();
9073 fragment_origin.x += line.width;
9074 }
9075 LineFragment::Element { size, .. } => {
9076 fragment_origin.x += size.width;
9077 }
9078 }
9079 }
9080 }
9081
9082 fn draw_invisibles(
9083 &self,
9084 selection_ranges: &[Range<DisplayPoint>],
9085 layout: &EditorLayout,
9086 content_origin: gpui::Point<Pixels>,
9087 line_y: Pixels,
9088 row: DisplayRow,
9089 line_height: Pixels,
9090 whitespace_setting: ShowWhitespaceSetting,
9091 window: &mut Window,
9092 cx: &mut App,
9093 ) {
9094 let extract_whitespace_info = |invisible: &Invisible| {
9095 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
9096 Invisible::Tab {
9097 line_start_offset,
9098 line_end_offset,
9099 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
9100 Invisible::Whitespace { line_offset } => {
9101 (*line_offset, line_offset + 1, &layout.space_invisible)
9102 }
9103 };
9104
9105 let x_offset: ScrollPixelOffset = self.x_for_index(token_offset).into();
9106 let invisible_offset: ScrollPixelOffset =
9107 ((layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0)
9108 .into();
9109 let origin = content_origin
9110 + gpui::point(
9111 Pixels::from(
9112 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
9113 ),
9114 line_y,
9115 );
9116
9117 (
9118 [token_offset, token_end_offset],
9119 Box::new(move |window: &mut Window, cx: &mut App| {
9120 invisible_symbol
9121 .paint(origin, line_height, TextAlign::Left, None, window, cx)
9122 .log_err();
9123 }),
9124 )
9125 };
9126
9127 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
9128 match whitespace_setting {
9129 ShowWhitespaceSetting::None => (),
9130 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
9131 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
9132 let invisible_point = DisplayPoint::new(row, start as u32);
9133 if !selection_ranges
9134 .iter()
9135 .any(|region| region.start <= invisible_point && invisible_point < region.end)
9136 {
9137 return;
9138 }
9139
9140 paint(window, cx);
9141 }),
9142
9143 ShowWhitespaceSetting::Trailing => {
9144 let mut previous_start = self.len;
9145 for ([start, end], paint) in invisible_iter.rev() {
9146 if previous_start != end {
9147 break;
9148 }
9149 previous_start = start;
9150 paint(window, cx);
9151 }
9152 }
9153
9154 // For a whitespace to be on a boundary, any of the following conditions need to be met:
9155 // - It is a tab
9156 // - It is adjacent to an edge (start or end)
9157 // - It is adjacent to a whitespace (left or right)
9158 ShowWhitespaceSetting::Boundary => {
9159 // 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
9160 // the above cases.
9161 // Note: We zip in the original `invisibles` to check for tab equality
9162 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
9163 for (([start, end], paint), invisible) in
9164 invisible_iter.zip_eq(self.invisibles.iter())
9165 {
9166 let should_render = match (&last_seen, invisible) {
9167 (_, Invisible::Tab { .. }) => true,
9168 (Some((_, last_end, _)), _) => *last_end == start,
9169 _ => false,
9170 };
9171
9172 if should_render || start == 0 || end == self.len {
9173 paint(window, cx);
9174
9175 // Since we are scanning from the left, we will skip over the first available whitespace that is part
9176 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
9177 if let Some((should_render_last, last_end, paint_last)) = last_seen {
9178 // Note that we need to make sure that the last one is actually adjacent
9179 if !should_render_last && last_end == start {
9180 paint_last(window, cx);
9181 }
9182 }
9183 }
9184
9185 // Manually render anything within a selection
9186 let invisible_point = DisplayPoint::new(row, start as u32);
9187 if selection_ranges.iter().any(|region| {
9188 region.start <= invisible_point && invisible_point < region.end
9189 }) {
9190 paint(window, cx);
9191 }
9192
9193 last_seen = Some((should_render, end, paint));
9194 }
9195 }
9196 }
9197 }
9198
9199 pub fn x_for_index(&self, index: usize) -> Pixels {
9200 let mut fragment_start_x = Pixels::ZERO;
9201 let mut fragment_start_index = 0;
9202
9203 for fragment in &self.fragments {
9204 match fragment {
9205 LineFragment::Text(shaped_line) => {
9206 let fragment_end_index = fragment_start_index + shaped_line.len;
9207 if index < fragment_end_index {
9208 return fragment_start_x
9209 + shaped_line.x_for_index(index - fragment_start_index);
9210 }
9211 fragment_start_x += shaped_line.width;
9212 fragment_start_index = fragment_end_index;
9213 }
9214 LineFragment::Element { len, size, .. } => {
9215 let fragment_end_index = fragment_start_index + len;
9216 if index < fragment_end_index {
9217 return fragment_start_x;
9218 }
9219 fragment_start_x += size.width;
9220 fragment_start_index = fragment_end_index;
9221 }
9222 }
9223 }
9224
9225 fragment_start_x
9226 }
9227
9228 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
9229 let mut fragment_start_x = Pixels::ZERO;
9230 let mut fragment_start_index = 0;
9231
9232 for fragment in &self.fragments {
9233 match fragment {
9234 LineFragment::Text(shaped_line) => {
9235 let fragment_end_x = fragment_start_x + shaped_line.width;
9236 if x < fragment_end_x {
9237 return Some(
9238 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
9239 );
9240 }
9241 fragment_start_x = fragment_end_x;
9242 fragment_start_index += shaped_line.len;
9243 }
9244 LineFragment::Element { len, size, .. } => {
9245 let fragment_end_x = fragment_start_x + size.width;
9246 if x < fragment_end_x {
9247 return Some(fragment_start_index);
9248 }
9249 fragment_start_index += len;
9250 fragment_start_x = fragment_end_x;
9251 }
9252 }
9253 }
9254
9255 None
9256 }
9257
9258 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
9259 let mut fragment_start_index = 0;
9260
9261 for fragment in &self.fragments {
9262 match fragment {
9263 LineFragment::Text(shaped_line) => {
9264 let fragment_end_index = fragment_start_index + shaped_line.len;
9265 if index < fragment_end_index {
9266 return shaped_line.font_id_for_index(index - fragment_start_index);
9267 }
9268 fragment_start_index = fragment_end_index;
9269 }
9270 LineFragment::Element { len, .. } => {
9271 let fragment_end_index = fragment_start_index + len;
9272 if index < fragment_end_index {
9273 return None;
9274 }
9275 fragment_start_index = fragment_end_index;
9276 }
9277 }
9278 }
9279
9280 None
9281 }
9282
9283 pub fn alignment_offset(&self, text_align: TextAlign, content_width: Pixels) -> Pixels {
9284 let line_width = self.width;
9285 match text_align {
9286 TextAlign::Left => px(0.0),
9287 TextAlign::Center => (content_width - line_width) / 2.0,
9288 TextAlign::Right => content_width - line_width,
9289 }
9290 }
9291}
9292
9293#[derive(Debug, Clone, Copy, PartialEq, Eq)]
9294enum Invisible {
9295 /// A tab character
9296 ///
9297 /// A tab character is internally represented by spaces (configured by the user's tab width)
9298 /// aligned to the nearest column, so it's necessary to store the start and end offset for
9299 /// adjacency checks.
9300 Tab {
9301 line_start_offset: usize,
9302 line_end_offset: usize,
9303 },
9304 Whitespace {
9305 line_offset: usize,
9306 },
9307}
9308
9309impl EditorElement {
9310 /// Returns the rem size to use when rendering the [`EditorElement`].
9311 ///
9312 /// This allows UI elements to scale based on the `buffer_font_size`.
9313 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
9314 match self.editor.read(cx).mode {
9315 EditorMode::Full {
9316 scale_ui_elements_with_buffer_font_size: true,
9317 ..
9318 }
9319 | EditorMode::Minimap { .. } => {
9320 let buffer_font_size = self.style.text.font_size;
9321 match buffer_font_size {
9322 AbsoluteLength::Pixels(pixels) => {
9323 let rem_size_scale = {
9324 // Our default UI font size is 14px on a 16px base scale.
9325 // This means the default UI font size is 0.875rems.
9326 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
9327
9328 // We then determine the delta between a single rem and the default font
9329 // size scale.
9330 let default_font_size_delta = 1. - default_font_size_scale;
9331
9332 // Finally, we add this delta to 1rem to get the scale factor that
9333 // should be used to scale up the UI.
9334 1. + default_font_size_delta
9335 };
9336
9337 Some(pixels * rem_size_scale)
9338 }
9339 AbsoluteLength::Rems(rems) => {
9340 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
9341 }
9342 }
9343 }
9344 // We currently use single-line and auto-height editors in UI contexts,
9345 // so we don't want to scale everything with the buffer font size, as it
9346 // ends up looking off.
9347 _ => None,
9348 }
9349 }
9350
9351 fn editor_with_selections(&self, cx: &App) -> Option<Entity<Editor>> {
9352 if let EditorMode::Minimap { parent } = self.editor.read(cx).mode() {
9353 parent.upgrade()
9354 } else {
9355 Some(self.editor.clone())
9356 }
9357 }
9358}
9359
9360#[derive(Default)]
9361pub struct EditorRequestLayoutState {
9362 // We use prepaint depth to limit the number of times prepaint is
9363 // called recursively. We need this so that we can update stale
9364 // data for e.g. block heights in block map.
9365 prepaint_depth: Rc<Cell<usize>>,
9366}
9367
9368impl EditorRequestLayoutState {
9369 // In ideal conditions we only need one more subsequent prepaint call for resize to take effect.
9370 // i.e. MAX_PREPAINT_DEPTH = 2, but since moving blocks inline (place_near), more lines from
9371 // below get exposed, and we end up querying blocks for those lines too in subsequent renders.
9372 // Setting MAX_PREPAINT_DEPTH = 3, passes all tests. Just to be on the safe side we set it to 5, so
9373 // that subsequent shrinking does not lead to incorrect block placing.
9374 const MAX_PREPAINT_DEPTH: usize = 5;
9375
9376 fn increment_prepaint_depth(&self) -> EditorPrepaintGuard {
9377 let depth = self.prepaint_depth.get();
9378 self.prepaint_depth.set(depth + 1);
9379 EditorPrepaintGuard {
9380 prepaint_depth: self.prepaint_depth.clone(),
9381 }
9382 }
9383
9384 fn can_prepaint(&self) -> bool {
9385 self.prepaint_depth.get() < Self::MAX_PREPAINT_DEPTH
9386 }
9387}
9388
9389struct EditorPrepaintGuard {
9390 prepaint_depth: Rc<Cell<usize>>,
9391}
9392
9393impl Drop for EditorPrepaintGuard {
9394 fn drop(&mut self) {
9395 let depth = self.prepaint_depth.get();
9396 self.prepaint_depth.set(depth.saturating_sub(1));
9397 }
9398}
9399
9400impl Element for EditorElement {
9401 type RequestLayoutState = EditorRequestLayoutState;
9402 type PrepaintState = EditorLayout;
9403
9404 fn id(&self) -> Option<ElementId> {
9405 None
9406 }
9407
9408 fn source_location(&self) -> Option<&'static core::panic::Location<'static>> {
9409 None
9410 }
9411
9412 fn request_layout(
9413 &mut self,
9414 _: Option<&GlobalElementId>,
9415 _inspector_id: Option<&gpui::InspectorElementId>,
9416 window: &mut Window,
9417 cx: &mut App,
9418 ) -> (gpui::LayoutId, Self::RequestLayoutState) {
9419 let rem_size = self.rem_size(cx);
9420 window.with_rem_size(rem_size, |window| {
9421 self.editor.update(cx, |editor, cx| {
9422 editor.set_style(self.style.clone(), window, cx);
9423
9424 let layout_id = match editor.mode {
9425 EditorMode::SingleLine => {
9426 let rem_size = window.rem_size();
9427 let height = self.style.text.line_height_in_pixels(rem_size);
9428 let mut style = Style::default();
9429 style.size.height = height.into();
9430 style.size.width = relative(1.).into();
9431 window.request_layout(style, None, cx)
9432 }
9433 EditorMode::AutoHeight {
9434 min_lines,
9435 max_lines,
9436 } => {
9437 let editor_handle = cx.entity();
9438 window.request_measured_layout(
9439 Style::default(),
9440 move |known_dimensions, available_space, window, cx| {
9441 editor_handle
9442 .update(cx, |editor, cx| {
9443 compute_auto_height_layout(
9444 editor,
9445 min_lines,
9446 max_lines,
9447 known_dimensions,
9448 available_space.width,
9449 window,
9450 cx,
9451 )
9452 })
9453 .unwrap_or_default()
9454 },
9455 )
9456 }
9457 EditorMode::Minimap { .. } => {
9458 let mut style = Style::default();
9459 style.size.width = relative(1.).into();
9460 style.size.height = relative(1.).into();
9461 window.request_layout(style, None, cx)
9462 }
9463 EditorMode::Full {
9464 sizing_behavior, ..
9465 } => {
9466 let mut style = Style::default();
9467 style.size.width = relative(1.).into();
9468 if sizing_behavior == SizingBehavior::SizeByContent {
9469 let snapshot = editor.snapshot(window, cx);
9470 let line_height =
9471 self.style.text.line_height_in_pixels(window.rem_size());
9472 let scroll_height =
9473 (snapshot.max_point().row().next_row().0 as f32) * line_height;
9474 style.size.height = scroll_height.into();
9475 } else {
9476 style.size.height = relative(1.).into();
9477 }
9478 window.request_layout(style, None, cx)
9479 }
9480 };
9481
9482 (layout_id, EditorRequestLayoutState::default())
9483 })
9484 })
9485 }
9486
9487 fn prepaint(
9488 &mut self,
9489 _: Option<&GlobalElementId>,
9490 _inspector_id: Option<&gpui::InspectorElementId>,
9491 bounds: Bounds<Pixels>,
9492 request_layout: &mut Self::RequestLayoutState,
9493 window: &mut Window,
9494 cx: &mut App,
9495 ) -> Self::PrepaintState {
9496 let _prepaint_depth_guard = request_layout.increment_prepaint_depth();
9497 let text_style = TextStyleRefinement {
9498 font_size: Some(self.style.text.font_size),
9499 line_height: Some(self.style.text.line_height),
9500 ..Default::default()
9501 };
9502
9503 let is_minimap = self.editor.read(cx).mode.is_minimap();
9504 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
9505
9506 if !is_minimap {
9507 let focus_handle = self.editor.focus_handle(cx);
9508 window.set_view_id(self.editor.entity_id());
9509 window.set_focus_handle(&focus_handle, cx);
9510 }
9511
9512 let rem_size = self.rem_size(cx);
9513 window.with_rem_size(rem_size, |window| {
9514 window.with_text_style(Some(text_style), |window| {
9515 window.with_content_mask(Some(ContentMask { bounds }), |window| {
9516 let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| {
9517 (editor.snapshot(window, cx), editor.read_only(cx))
9518 });
9519 let style = &self.style;
9520
9521 let rem_size = window.rem_size();
9522 let font_id = window.text_system().resolve_font(&style.text.font());
9523 let font_size = style.text.font_size.to_pixels(rem_size);
9524 let line_height = style.text.line_height_in_pixels(rem_size);
9525 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
9526 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
9527 let glyph_grid_cell = size(em_advance, line_height);
9528
9529 let gutter_dimensions =
9530 snapshot.gutter_dimensions(font_id, font_size, style, window, cx);
9531 let text_width = bounds.size.width - gutter_dimensions.width;
9532
9533 let settings = EditorSettings::get_global(cx);
9534 let scrollbars_shown = settings.scrollbar.show != ShowScrollbar::Never;
9535 let vertical_scrollbar_width = (scrollbars_shown
9536 && settings.scrollbar.axes.vertical
9537 && self.editor.read(cx).show_scrollbars.vertical)
9538 .then_some(style.scrollbar_width)
9539 .unwrap_or_default();
9540 let minimap_width = self
9541 .get_minimap_width(
9542 &settings.minimap,
9543 scrollbars_shown,
9544 text_width,
9545 em_width,
9546 font_size,
9547 rem_size,
9548 cx,
9549 )
9550 .unwrap_or_default();
9551
9552 let right_margin = minimap_width + vertical_scrollbar_width;
9553
9554 let editor_width =
9555 text_width - gutter_dimensions.margin - 2 * em_width - right_margin;
9556 let editor_margins = EditorMargins {
9557 gutter: gutter_dimensions,
9558 right: right_margin,
9559 };
9560
9561 snapshot = self.editor.update(cx, |editor, cx| {
9562 editor.last_bounds = Some(bounds);
9563 editor.gutter_dimensions = gutter_dimensions;
9564 editor.set_visible_line_count(
9565 (bounds.size.height / line_height) as f64,
9566 window,
9567 cx,
9568 );
9569 editor.set_visible_column_count(f64::from(editor_width / em_advance));
9570
9571 if matches!(
9572 editor.mode,
9573 EditorMode::AutoHeight { .. } | EditorMode::Minimap { .. }
9574 ) {
9575 snapshot
9576 } else {
9577 let wrap_width = calculate_wrap_width(
9578 editor.soft_wrap_mode(cx),
9579 editor_width,
9580 em_advance,
9581 );
9582
9583 if editor.set_wrap_width(wrap_width, cx) {
9584 editor.snapshot(window, cx)
9585 } else {
9586 snapshot
9587 }
9588 }
9589 });
9590
9591 let hitbox = window.insert_hitbox(bounds, HitboxBehavior::Normal);
9592 let gutter_hitbox = window.insert_hitbox(
9593 gutter_bounds(bounds, gutter_dimensions),
9594 HitboxBehavior::Normal,
9595 );
9596 let text_hitbox = window.insert_hitbox(
9597 Bounds {
9598 origin: gutter_hitbox.top_right(),
9599 size: size(text_width, bounds.size.height),
9600 },
9601 HitboxBehavior::Normal,
9602 );
9603
9604 // Offset the content_bounds from the text_bounds by the gutter margin (which
9605 // is roughly half a character wide) to make hit testing work more like how we want.
9606 let content_offset = point(editor_margins.gutter.margin, Pixels::ZERO);
9607 let content_origin = text_hitbox.origin + content_offset;
9608
9609 let height_in_lines = f64::from(bounds.size.height / line_height);
9610 let max_row = snapshot.max_point().row().as_f64();
9611
9612 // Calculate how much of the editor is clipped by parent containers (e.g., List).
9613 // This allows us to only render lines that are actually visible, which is
9614 // critical for performance when large AutoHeight editors are inside Lists.
9615 let visible_bounds = window.content_mask().bounds;
9616 let clipped_top = (visible_bounds.origin.y - bounds.origin.y).max(px(0.));
9617 let clipped_top_in_lines = f64::from(clipped_top / line_height);
9618 let visible_height_in_lines =
9619 f64::from(visible_bounds.size.height / line_height);
9620
9621 // The max scroll position for the top of the window
9622 let max_scroll_top = if matches!(
9623 snapshot.mode,
9624 EditorMode::SingleLine
9625 | EditorMode::AutoHeight { .. }
9626 | EditorMode::Full {
9627 sizing_behavior: SizingBehavior::ExcludeOverscrollMargin
9628 | SizingBehavior::SizeByContent,
9629 ..
9630 }
9631 ) {
9632 (max_row - height_in_lines + 1.).max(0.)
9633 } else {
9634 let settings = EditorSettings::get_global(cx);
9635 match settings.scroll_beyond_last_line {
9636 ScrollBeyondLastLine::OnePage => max_row,
9637 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
9638 ScrollBeyondLastLine::VerticalScrollMargin => {
9639 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
9640 .max(0.)
9641 }
9642 }
9643 };
9644
9645 let (
9646 autoscroll_request,
9647 autoscroll_containing_element,
9648 needs_horizontal_autoscroll,
9649 ) = self.editor.update(cx, |editor, cx| {
9650 let autoscroll_request = editor.scroll_manager.take_autoscroll_request();
9651
9652 let autoscroll_containing_element =
9653 autoscroll_request.is_some() || editor.has_pending_selection();
9654
9655 let (needs_horizontal_autoscroll, was_scrolled) = editor
9656 .autoscroll_vertically(
9657 bounds,
9658 line_height,
9659 max_scroll_top,
9660 autoscroll_request,
9661 window,
9662 cx,
9663 );
9664 if was_scrolled.0 {
9665 snapshot = editor.snapshot(window, cx);
9666 }
9667 (
9668 autoscroll_request,
9669 autoscroll_containing_element,
9670 needs_horizontal_autoscroll,
9671 )
9672 });
9673
9674 let mut scroll_position = snapshot.scroll_position();
9675 // The scroll position is a fractional point, the whole number of which represents
9676 // the top of the window in terms of display rows.
9677 // We add clipped_top_in_lines to skip rows that are clipped by parent containers,
9678 // but we don't modify scroll_position itself since the parent handles positioning.
9679 let max_row = snapshot.max_point().row();
9680 let start_row = cmp::min(
9681 DisplayRow((scroll_position.y + clipped_top_in_lines).floor() as u32),
9682 max_row,
9683 );
9684 let end_row = cmp::min(
9685 (scroll_position.y + clipped_top_in_lines + visible_height_in_lines).ceil()
9686 as u32,
9687 max_row.next_row().0,
9688 );
9689 let end_row = DisplayRow(end_row);
9690
9691 let row_infos = snapshot // note we only get the visual range
9692 .row_infos(start_row)
9693 .take((start_row..end_row).len())
9694 .collect::<Vec<RowInfo>>();
9695 let is_row_soft_wrapped = |row: usize| {
9696 row_infos
9697 .get(row)
9698 .is_none_or(|info| info.buffer_row.is_none())
9699 };
9700
9701 let start_anchor = if start_row == Default::default() {
9702 Anchor::min()
9703 } else {
9704 snapshot.buffer_snapshot().anchor_before(
9705 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
9706 )
9707 };
9708 let end_anchor = if end_row > max_row {
9709 Anchor::max()
9710 } else {
9711 snapshot.buffer_snapshot().anchor_before(
9712 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
9713 )
9714 };
9715
9716 let mut highlighted_rows = self
9717 .editor
9718 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
9719
9720 let is_light = cx.theme().appearance().is_light();
9721
9722 let mut highlighted_ranges = self
9723 .editor_with_selections(cx)
9724 .map(|editor| {
9725 editor.read(cx).background_highlights_in_range(
9726 start_anchor..end_anchor,
9727 &snapshot.display_snapshot,
9728 cx.theme(),
9729 )
9730 })
9731 .unwrap_or_default();
9732
9733 for (ix, row_info) in row_infos.iter().enumerate() {
9734 let Some(diff_status) = row_info.diff_status else {
9735 continue;
9736 };
9737
9738 let background_color = match diff_status.kind {
9739 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
9740 DiffHunkStatusKind::Deleted => {
9741 cx.theme().colors().version_control_deleted
9742 }
9743 DiffHunkStatusKind::Modified => {
9744 debug_panic!("modified diff status for row info");
9745 continue;
9746 }
9747 };
9748
9749 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
9750
9751 let hollow_highlight = LineHighlight {
9752 background: (background_color.opacity(if is_light {
9753 0.08
9754 } else {
9755 0.06
9756 }))
9757 .into(),
9758 border: Some(if is_light {
9759 background_color.opacity(0.48)
9760 } else {
9761 background_color.opacity(0.36)
9762 }),
9763 include_gutter: true,
9764 type_id: None,
9765 };
9766
9767 let filled_highlight = LineHighlight {
9768 background: solid_background(background_color.opacity(hunk_opacity)),
9769 border: None,
9770 include_gutter: true,
9771 type_id: None,
9772 };
9773
9774 let background = if Self::diff_hunk_hollow(diff_status, cx) {
9775 hollow_highlight
9776 } else {
9777 filled_highlight
9778 };
9779
9780 let base_display_point =
9781 DisplayPoint::new(start_row + DisplayRow(ix as u32), 0);
9782
9783 highlighted_rows
9784 .entry(base_display_point.row())
9785 .or_insert(background);
9786 }
9787
9788 // Add diff review drag selection highlight to text area
9789 if let Some(drag_state) = &self.editor.read(cx).diff_review_drag_state {
9790 let range = drag_state.row_range(&snapshot.display_snapshot);
9791 let start_row = range.start().0;
9792 let end_row = range.end().0;
9793 let drag_highlight_color =
9794 cx.theme().colors().editor_active_line_background;
9795 let drag_highlight = LineHighlight {
9796 background: solid_background(drag_highlight_color),
9797 border: Some(cx.theme().colors().border_focused),
9798 include_gutter: true,
9799 type_id: None,
9800 };
9801 for row_num in start_row..=end_row {
9802 highlighted_rows
9803 .entry(DisplayRow(row_num))
9804 .or_insert(drag_highlight);
9805 }
9806 }
9807
9808 let highlighted_gutter_ranges =
9809 self.editor.read(cx).gutter_highlights_in_range(
9810 start_anchor..end_anchor,
9811 &snapshot.display_snapshot,
9812 cx,
9813 );
9814
9815 let document_colors = self
9816 .editor
9817 .read(cx)
9818 .colors
9819 .as_ref()
9820 .map(|colors| colors.editor_display_highlights(&snapshot));
9821 let redacted_ranges = self.editor.read(cx).redacted_ranges(
9822 start_anchor..end_anchor,
9823 &snapshot.display_snapshot,
9824 cx,
9825 );
9826
9827 let (local_selections, selected_buffer_ids, latest_selection_anchors): (
9828 Vec<Selection<Point>>,
9829 Vec<BufferId>,
9830 HashMap<BufferId, Anchor>,
9831 ) = self
9832 .editor_with_selections(cx)
9833 .map(|editor| {
9834 editor.update(cx, |editor, cx| {
9835 let all_selections =
9836 editor.selections.all::<Point>(&snapshot.display_snapshot);
9837 let all_anchor_selections =
9838 editor.selections.all_anchors(&snapshot.display_snapshot);
9839 let selected_buffer_ids =
9840 if editor.buffer_kind(cx) == ItemBufferKind::Singleton {
9841 Vec::new()
9842 } else {
9843 let mut selected_buffer_ids =
9844 Vec::with_capacity(all_selections.len());
9845
9846 for selection in all_selections {
9847 for buffer_id in snapshot
9848 .buffer_snapshot()
9849 .buffer_ids_for_range(selection.range())
9850 {
9851 if selected_buffer_ids.last() != Some(&buffer_id) {
9852 selected_buffer_ids.push(buffer_id);
9853 }
9854 }
9855 }
9856
9857 selected_buffer_ids
9858 };
9859
9860 let mut selections = editor.selections.disjoint_in_range(
9861 start_anchor..end_anchor,
9862 &snapshot.display_snapshot,
9863 );
9864 selections
9865 .extend(editor.selections.pending(&snapshot.display_snapshot));
9866
9867 let mut anchors_by_buffer: HashMap<BufferId, (usize, Anchor)> =
9868 HashMap::default();
9869 for selection in all_anchor_selections.iter() {
9870 let head = selection.head();
9871 if let Some(buffer_id) = head.text_anchor.buffer_id {
9872 anchors_by_buffer
9873 .entry(buffer_id)
9874 .and_modify(|(latest_id, latest_anchor)| {
9875 if selection.id > *latest_id {
9876 *latest_id = selection.id;
9877 *latest_anchor = head;
9878 }
9879 })
9880 .or_insert((selection.id, head));
9881 }
9882 }
9883 let latest_selection_anchors = anchors_by_buffer
9884 .into_iter()
9885 .map(|(buffer_id, (_, anchor))| (buffer_id, anchor))
9886 .collect();
9887
9888 (selections, selected_buffer_ids, latest_selection_anchors)
9889 })
9890 })
9891 .unwrap_or_else(|| (Vec::new(), Vec::new(), HashMap::default()));
9892
9893 let (selections, mut active_rows, newest_selection_head) = self
9894 .layout_selections(
9895 start_anchor,
9896 end_anchor,
9897 &local_selections,
9898 &snapshot,
9899 start_row,
9900 end_row,
9901 window,
9902 cx,
9903 );
9904
9905 // relative rows are based on newest selection, even outside the visible area
9906 let current_selection_head = self.editor.update(cx, |editor, cx| {
9907 (editor.selections.count() != 0).then(|| {
9908 let newest = editor
9909 .selections
9910 .newest::<Point>(&editor.display_snapshot(cx));
9911
9912 SelectionLayout::new(
9913 newest,
9914 editor.selections.line_mode(),
9915 editor.cursor_offset_on_selection,
9916 editor.cursor_shape,
9917 &snapshot,
9918 true,
9919 true,
9920 None,
9921 )
9922 .head
9923 .row()
9924 })
9925 });
9926
9927 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
9928 editor.active_breakpoints(start_row..end_row, window, cx)
9929 });
9930 for (display_row, (_, bp, state)) in &breakpoint_rows {
9931 if bp.is_enabled() && state.is_none_or(|s| s.verified) {
9932 active_rows.entry(*display_row).or_default().breakpoint = true;
9933 }
9934 }
9935
9936 let line_numbers = self.layout_line_numbers(
9937 Some(&gutter_hitbox),
9938 gutter_dimensions,
9939 line_height,
9940 scroll_position,
9941 start_row..end_row,
9942 &row_infos,
9943 &active_rows,
9944 current_selection_head,
9945 &snapshot,
9946 window,
9947 cx,
9948 );
9949
9950 // We add the gutter breakpoint indicator to breakpoint_rows after painting
9951 // line numbers so we don't paint a line number debug accent color if a user
9952 // has their mouse over that line when a breakpoint isn't there
9953 self.editor.update(cx, |editor, _| {
9954 if let Some(phantom_breakpoint) = &mut editor
9955 .gutter_breakpoint_indicator
9956 .0
9957 .filter(|phantom_breakpoint| phantom_breakpoint.is_active)
9958 {
9959 // Is there a non-phantom breakpoint on this line?
9960 phantom_breakpoint.collides_with_existing_breakpoint = true;
9961 breakpoint_rows
9962 .entry(phantom_breakpoint.display_row)
9963 .or_insert_with(|| {
9964 let position = snapshot.display_point_to_anchor(
9965 DisplayPoint::new(phantom_breakpoint.display_row, 0),
9966 Bias::Right,
9967 );
9968 let breakpoint = Breakpoint::new_standard();
9969 phantom_breakpoint.collides_with_existing_breakpoint = false;
9970 (position, breakpoint, None)
9971 });
9972 }
9973 });
9974
9975 let mut expand_toggles =
9976 window.with_element_namespace("expand_toggles", |window| {
9977 self.layout_expand_toggles(
9978 &gutter_hitbox,
9979 gutter_dimensions,
9980 em_width,
9981 line_height,
9982 scroll_position,
9983 &row_infos,
9984 window,
9985 cx,
9986 )
9987 });
9988
9989 let mut crease_toggles =
9990 window.with_element_namespace("crease_toggles", |window| {
9991 self.layout_crease_toggles(
9992 start_row..end_row,
9993 &row_infos,
9994 &active_rows,
9995 &snapshot,
9996 window,
9997 cx,
9998 )
9999 });
10000 let crease_trailers =
10001 window.with_element_namespace("crease_trailers", |window| {
10002 self.layout_crease_trailers(
10003 row_infos.iter().cloned(),
10004 &snapshot,
10005 window,
10006 cx,
10007 )
10008 });
10009
10010 let display_hunks = self.layout_gutter_diff_hunks(
10011 line_height,
10012 &gutter_hitbox,
10013 start_row..end_row,
10014 &snapshot,
10015 window,
10016 cx,
10017 );
10018
10019 Self::layout_word_diff_highlights(
10020 &display_hunks,
10021 &row_infos,
10022 start_row,
10023 &snapshot,
10024 &mut highlighted_ranges,
10025 cx,
10026 );
10027
10028 let merged_highlighted_ranges =
10029 if let Some((_, colors)) = document_colors.as_ref() {
10030 &highlighted_ranges
10031 .clone()
10032 .into_iter()
10033 .chain(colors.clone())
10034 .collect()
10035 } else {
10036 &highlighted_ranges
10037 };
10038 let bg_segments_per_row = Self::bg_segments_per_row(
10039 start_row..end_row,
10040 &selections,
10041 &merged_highlighted_ranges,
10042 self.style.background,
10043 );
10044
10045 let mut line_layouts = Self::layout_lines(
10046 start_row..end_row,
10047 &snapshot,
10048 &self.style,
10049 editor_width,
10050 is_row_soft_wrapped,
10051 &bg_segments_per_row,
10052 window,
10053 cx,
10054 );
10055 let new_renderer_widths = (!is_minimap).then(|| {
10056 line_layouts
10057 .iter()
10058 .flat_map(|layout| &layout.fragments)
10059 .filter_map(|fragment| {
10060 if let LineFragment::Element { id, size, .. } = fragment {
10061 Some((*id, size.width))
10062 } else {
10063 None
10064 }
10065 })
10066 });
10067 if new_renderer_widths.is_some_and(|new_renderer_widths| {
10068 self.editor.update(cx, |editor, cx| {
10069 editor.update_renderer_widths(new_renderer_widths, cx)
10070 })
10071 }) {
10072 // If the fold widths have changed, we need to prepaint
10073 // the element again to account for any changes in
10074 // wrapping.
10075 if request_layout.can_prepaint() {
10076 return self.prepaint(
10077 None,
10078 _inspector_id,
10079 bounds,
10080 request_layout,
10081 window,
10082 cx,
10083 );
10084 } else {
10085 debug_panic!(concat!(
10086 "skipping recursive prepaint at max depth. ",
10087 "renderer widths may be stale."
10088 ));
10089 }
10090 }
10091
10092 let longest_line_blame_width = self
10093 .editor
10094 .update(cx, |editor, cx| {
10095 if !editor.show_git_blame_inline {
10096 return None;
10097 }
10098 let blame = editor.blame.as_ref()?;
10099 let (_, blame_entry) = blame
10100 .update(cx, |blame, cx| {
10101 let row_infos =
10102 snapshot.row_infos(snapshot.longest_row()).next()?;
10103 blame.blame_for_rows(&[row_infos], cx).next()
10104 })
10105 .flatten()?;
10106 let mut element = render_inline_blame_entry(blame_entry, style, cx)?;
10107 let inline_blame_padding =
10108 ProjectSettings::get_global(cx).git.inline_blame.padding as f32
10109 * em_advance;
10110 Some(
10111 element
10112 .layout_as_root(AvailableSpace::min_size(), window, cx)
10113 .width
10114 + inline_blame_padding,
10115 )
10116 })
10117 .unwrap_or(Pixels::ZERO);
10118
10119 let longest_line_width = layout_line(
10120 snapshot.longest_row(),
10121 &snapshot,
10122 style,
10123 editor_width,
10124 is_row_soft_wrapped,
10125 window,
10126 cx,
10127 )
10128 .width;
10129
10130 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
10131 text_hitbox.bounds,
10132 glyph_grid_cell,
10133 size(
10134 longest_line_width,
10135 Pixels::from(max_row.as_f64() * f64::from(line_height)),
10136 ),
10137 longest_line_blame_width,
10138 EditorSettings::get_global(cx),
10139 );
10140
10141 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
10142
10143 let sticky_header_excerpt = if snapshot.buffer_snapshot().show_headers() {
10144 snapshot.sticky_header_excerpt(scroll_position.y)
10145 } else {
10146 None
10147 };
10148 let sticky_header_excerpt_id =
10149 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
10150
10151 let blocks = (!is_minimap)
10152 .then(|| {
10153 window.with_element_namespace("blocks", |window| {
10154 self.render_blocks(
10155 start_row..end_row,
10156 &snapshot,
10157 &hitbox,
10158 &text_hitbox,
10159 editor_width,
10160 &mut scroll_width,
10161 &editor_margins,
10162 em_width,
10163 gutter_dimensions.full_width(),
10164 line_height,
10165 &mut line_layouts,
10166 &local_selections,
10167 &selected_buffer_ids,
10168 &latest_selection_anchors,
10169 is_row_soft_wrapped,
10170 sticky_header_excerpt_id,
10171 window,
10172 cx,
10173 )
10174 })
10175 })
10176 .unwrap_or_default();
10177 let RenderBlocksOutput {
10178 mut blocks,
10179 row_block_types,
10180 resized_blocks,
10181 } = blocks;
10182 if let Some(resized_blocks) = resized_blocks {
10183 self.editor.update(cx, |editor, cx| {
10184 editor.resize_blocks(
10185 resized_blocks,
10186 autoscroll_request.map(|(autoscroll, _)| autoscroll),
10187 cx,
10188 )
10189 });
10190 if request_layout.can_prepaint() {
10191 return self.prepaint(
10192 None,
10193 _inspector_id,
10194 bounds,
10195 request_layout,
10196 window,
10197 cx,
10198 );
10199 } else {
10200 debug_panic!(concat!(
10201 "skipping recursive prepaint at max depth. ",
10202 "block layout may be stale."
10203 ));
10204 }
10205 }
10206
10207 let sticky_buffer_header = if self.should_show_buffer_headers() {
10208 sticky_header_excerpt.map(|sticky_header_excerpt| {
10209 window.with_element_namespace("blocks", |window| {
10210 self.layout_sticky_buffer_header(
10211 sticky_header_excerpt,
10212 scroll_position,
10213 line_height,
10214 right_margin,
10215 &snapshot,
10216 &hitbox,
10217 &selected_buffer_ids,
10218 &blocks,
10219 &latest_selection_anchors,
10220 window,
10221 cx,
10222 )
10223 })
10224 })
10225 } else {
10226 None
10227 };
10228
10229 let start_buffer_row =
10230 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot()).row);
10231 let end_buffer_row =
10232 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot()).row);
10233
10234 let scroll_max: gpui::Point<ScrollPixelOffset> = point(
10235 ScrollPixelOffset::from(
10236 ((scroll_width - editor_width) / em_advance).max(0.0),
10237 ),
10238 max_scroll_top,
10239 );
10240
10241 self.editor.update(cx, |editor, cx| {
10242 if editor.scroll_manager.clamp_scroll_left(scroll_max.x, cx) {
10243 scroll_position.x = scroll_max.x.min(scroll_position.x);
10244 }
10245
10246 if needs_horizontal_autoscroll.0
10247 && let Some(new_scroll_position) = editor.autoscroll_horizontally(
10248 start_row,
10249 editor_width,
10250 scroll_width,
10251 em_advance,
10252 &line_layouts,
10253 autoscroll_request,
10254 window,
10255 cx,
10256 )
10257 {
10258 scroll_position = new_scroll_position;
10259 }
10260 });
10261
10262 let scroll_pixel_position = point(
10263 scroll_position.x * f64::from(em_advance),
10264 scroll_position.y * f64::from(line_height),
10265 );
10266 let sticky_headers = if !is_minimap
10267 && is_singleton
10268 && EditorSettings::get_global(cx).sticky_scroll.enabled
10269 {
10270 let relative = self.editor.read(cx).relative_line_numbers(cx);
10271 self.layout_sticky_headers(
10272 &snapshot,
10273 editor_width,
10274 is_row_soft_wrapped,
10275 line_height,
10276 scroll_pixel_position,
10277 content_origin,
10278 &gutter_dimensions,
10279 &gutter_hitbox,
10280 &text_hitbox,
10281 relative,
10282 current_selection_head,
10283 window,
10284 cx,
10285 )
10286 } else {
10287 None
10288 };
10289 self.editor.update(cx, |editor, _| {
10290 editor.scroll_manager.set_sticky_header_line_count(
10291 sticky_headers.as_ref().map_or(0, |h| h.lines.len()),
10292 );
10293 });
10294 let indent_guides = self.layout_indent_guides(
10295 content_origin,
10296 text_hitbox.origin,
10297 start_buffer_row..end_buffer_row,
10298 scroll_pixel_position,
10299 line_height,
10300 &snapshot,
10301 window,
10302 cx,
10303 );
10304
10305 let crease_trailers =
10306 window.with_element_namespace("crease_trailers", |window| {
10307 self.prepaint_crease_trailers(
10308 crease_trailers,
10309 &line_layouts,
10310 line_height,
10311 content_origin,
10312 scroll_pixel_position,
10313 em_width,
10314 window,
10315 cx,
10316 )
10317 });
10318
10319 let (edit_prediction_popover, edit_prediction_popover_origin) = self
10320 .editor
10321 .update(cx, |editor, cx| {
10322 editor.render_edit_prediction_popover(
10323 &text_hitbox.bounds,
10324 content_origin,
10325 right_margin,
10326 &snapshot,
10327 start_row..end_row,
10328 scroll_position.y,
10329 scroll_position.y + height_in_lines,
10330 &line_layouts,
10331 line_height,
10332 scroll_position,
10333 scroll_pixel_position,
10334 newest_selection_head,
10335 editor_width,
10336 style,
10337 window,
10338 cx,
10339 )
10340 })
10341 .unzip();
10342
10343 let mut inline_diagnostics = self.layout_inline_diagnostics(
10344 &line_layouts,
10345 &crease_trailers,
10346 &row_block_types,
10347 content_origin,
10348 scroll_position,
10349 scroll_pixel_position,
10350 edit_prediction_popover_origin,
10351 start_row,
10352 end_row,
10353 line_height,
10354 em_width,
10355 style,
10356 window,
10357 cx,
10358 );
10359
10360 let mut inline_blame_layout = None;
10361 let mut inline_code_actions = None;
10362 if let Some(newest_selection_head) = newest_selection_head {
10363 let display_row = newest_selection_head.row();
10364 if (start_row..end_row).contains(&display_row)
10365 && !row_block_types.contains_key(&display_row)
10366 {
10367 inline_code_actions = self.layout_inline_code_actions(
10368 newest_selection_head,
10369 content_origin,
10370 scroll_position,
10371 scroll_pixel_position,
10372 line_height,
10373 &snapshot,
10374 window,
10375 cx,
10376 );
10377
10378 let line_ix = display_row.minus(start_row) as usize;
10379 if let (Some(row_info), Some(line_layout), Some(crease_trailer)) = (
10380 row_infos.get(line_ix),
10381 line_layouts.get(line_ix),
10382 crease_trailers.get(line_ix),
10383 ) {
10384 let crease_trailer_layout = crease_trailer.as_ref();
10385 if let Some(layout) = self.layout_inline_blame(
10386 display_row,
10387 row_info,
10388 line_layout,
10389 crease_trailer_layout,
10390 em_width,
10391 content_origin,
10392 scroll_position,
10393 scroll_pixel_position,
10394 line_height,
10395 window,
10396 cx,
10397 ) {
10398 inline_blame_layout = Some(layout);
10399 // Blame overrides inline diagnostics
10400 inline_diagnostics.remove(&display_row);
10401 }
10402 } else {
10403 log::error!(
10404 "bug: line_ix {} is out of bounds - row_infos.len(): {}, \
10405 line_layouts.len(): {}, \
10406 crease_trailers.len(): {}",
10407 line_ix,
10408 row_infos.len(),
10409 line_layouts.len(),
10410 crease_trailers.len(),
10411 );
10412 }
10413 }
10414 }
10415
10416 let blamed_display_rows = self.layout_blame_entries(
10417 &row_infos,
10418 em_width,
10419 scroll_position,
10420 line_height,
10421 &gutter_hitbox,
10422 gutter_dimensions.git_blame_entries_width,
10423 window,
10424 cx,
10425 );
10426
10427 let line_elements = self.prepaint_lines(
10428 start_row,
10429 &mut line_layouts,
10430 line_height,
10431 scroll_position,
10432 scroll_pixel_position,
10433 content_origin,
10434 window,
10435 cx,
10436 );
10437
10438 window.with_element_namespace("blocks", |window| {
10439 self.layout_blocks(
10440 &mut blocks,
10441 &hitbox,
10442 line_height,
10443 scroll_position,
10444 scroll_pixel_position,
10445 window,
10446 cx,
10447 );
10448 });
10449
10450 let cursors = self.collect_cursors(&snapshot, cx);
10451 let visible_row_range = start_row..end_row;
10452 let non_visible_cursors = cursors
10453 .iter()
10454 .any(|c| !visible_row_range.contains(&c.0.row()));
10455
10456 let visible_cursors = self.layout_visible_cursors(
10457 &snapshot,
10458 &selections,
10459 &row_block_types,
10460 start_row..end_row,
10461 &line_layouts,
10462 &text_hitbox,
10463 content_origin,
10464 scroll_position,
10465 scroll_pixel_position,
10466 line_height,
10467 em_width,
10468 em_advance,
10469 autoscroll_containing_element,
10470 &redacted_ranges,
10471 window,
10472 cx,
10473 );
10474
10475 let scrollbars_layout = self.layout_scrollbars(
10476 &snapshot,
10477 &scrollbar_layout_information,
10478 content_offset,
10479 scroll_position,
10480 non_visible_cursors,
10481 right_margin,
10482 editor_width,
10483 window,
10484 cx,
10485 );
10486
10487 let gutter_settings = EditorSettings::get_global(cx).gutter;
10488
10489 let context_menu_layout =
10490 if let Some(newest_selection_head) = newest_selection_head {
10491 let newest_selection_point =
10492 newest_selection_head.to_point(&snapshot.display_snapshot);
10493 if (start_row..end_row).contains(&newest_selection_head.row()) {
10494 self.layout_cursor_popovers(
10495 line_height,
10496 &text_hitbox,
10497 content_origin,
10498 right_margin,
10499 start_row,
10500 scroll_pixel_position,
10501 &line_layouts,
10502 newest_selection_head,
10503 newest_selection_point,
10504 style,
10505 window,
10506 cx,
10507 )
10508 } else {
10509 None
10510 }
10511 } else {
10512 None
10513 };
10514
10515 self.layout_gutter_menu(
10516 line_height,
10517 &text_hitbox,
10518 content_origin,
10519 right_margin,
10520 scroll_pixel_position,
10521 gutter_dimensions.width - gutter_dimensions.left_padding,
10522 window,
10523 cx,
10524 );
10525
10526 let test_indicators = if gutter_settings.runnables {
10527 self.layout_run_indicators(
10528 line_height,
10529 start_row..end_row,
10530 &row_infos,
10531 scroll_position,
10532 &gutter_dimensions,
10533 &gutter_hitbox,
10534 &snapshot,
10535 &mut breakpoint_rows,
10536 window,
10537 cx,
10538 )
10539 } else {
10540 Vec::new()
10541 };
10542
10543 let show_breakpoints = snapshot
10544 .show_breakpoints
10545 .unwrap_or(gutter_settings.breakpoints);
10546 let breakpoints = if show_breakpoints {
10547 self.layout_breakpoints(
10548 line_height,
10549 start_row..end_row,
10550 scroll_position,
10551 &gutter_dimensions,
10552 &gutter_hitbox,
10553 &snapshot,
10554 breakpoint_rows,
10555 &row_infos,
10556 window,
10557 cx,
10558 )
10559 } else {
10560 Vec::new()
10561 };
10562
10563 let git_gutter_width = Self::gutter_strip_width(line_height)
10564 + gutter_dimensions
10565 .git_blame_entries_width
10566 .unwrap_or_default();
10567 let available_width = gutter_dimensions.left_padding - git_gutter_width;
10568
10569 let max_line_number_length = self
10570 .editor
10571 .read(cx)
10572 .buffer()
10573 .read(cx)
10574 .snapshot(cx)
10575 .widest_line_number()
10576 .ilog10()
10577 + 1;
10578
10579 let diff_review_button = self
10580 .should_render_diff_review_button(
10581 start_row..end_row,
10582 &row_infos,
10583 &snapshot,
10584 cx,
10585 )
10586 .map(|(display_row, buffer_row)| {
10587 let is_wide = max_line_number_length
10588 >= EditorSettings::get_global(cx).gutter.min_line_number_digits
10589 as u32
10590 && buffer_row.is_some_and(|row| {
10591 (row + 1).ilog10() + 1 == max_line_number_length
10592 })
10593 || gutter_dimensions.right_padding == px(0.);
10594
10595 let button_width = if is_wide {
10596 available_width - px(6.)
10597 } else {
10598 available_width + em_width - px(6.)
10599 };
10600
10601 let button = self.editor.update(cx, |editor, cx| {
10602 editor
10603 .render_diff_review_button(display_row, button_width, cx)
10604 .into_any_element()
10605 });
10606 prepaint_gutter_button(
10607 button,
10608 display_row,
10609 line_height,
10610 &gutter_dimensions,
10611 scroll_position,
10612 &gutter_hitbox,
10613 window,
10614 cx,
10615 )
10616 });
10617
10618 self.layout_signature_help(
10619 &hitbox,
10620 content_origin,
10621 scroll_pixel_position,
10622 newest_selection_head,
10623 start_row,
10624 &line_layouts,
10625 line_height,
10626 em_width,
10627 context_menu_layout,
10628 window,
10629 cx,
10630 );
10631
10632 if !cx.has_active_drag() {
10633 self.layout_hover_popovers(
10634 &snapshot,
10635 &hitbox,
10636 start_row..end_row,
10637 content_origin,
10638 scroll_pixel_position,
10639 &line_layouts,
10640 line_height,
10641 em_width,
10642 context_menu_layout,
10643 window,
10644 cx,
10645 );
10646
10647 self.layout_blame_popover(&snapshot, &hitbox, line_height, window, cx);
10648 }
10649
10650 let mouse_context_menu = self.layout_mouse_context_menu(
10651 &snapshot,
10652 start_row..end_row,
10653 content_origin,
10654 window,
10655 cx,
10656 );
10657
10658 window.with_element_namespace("crease_toggles", |window| {
10659 self.prepaint_crease_toggles(
10660 &mut crease_toggles,
10661 line_height,
10662 &gutter_dimensions,
10663 gutter_settings,
10664 scroll_pixel_position,
10665 &gutter_hitbox,
10666 window,
10667 cx,
10668 )
10669 });
10670
10671 window.with_element_namespace("expand_toggles", |window| {
10672 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
10673 });
10674
10675 let wrap_guides = self.layout_wrap_guides(
10676 em_advance,
10677 scroll_position,
10678 content_origin,
10679 scrollbars_layout.as_ref(),
10680 vertical_scrollbar_width,
10681 &hitbox,
10682 window,
10683 cx,
10684 );
10685
10686 let minimap = window.with_element_namespace("minimap", |window| {
10687 self.layout_minimap(
10688 &snapshot,
10689 minimap_width,
10690 scroll_position,
10691 &scrollbar_layout_information,
10692 scrollbars_layout.as_ref(),
10693 window,
10694 cx,
10695 )
10696 });
10697
10698 let invisible_symbol_font_size = font_size / 2.;
10699 let whitespace_map = &self
10700 .editor
10701 .read(cx)
10702 .buffer
10703 .read(cx)
10704 .language_settings(cx)
10705 .whitespace_map;
10706
10707 let tab_char = whitespace_map.tab.clone();
10708 let tab_len = tab_char.len();
10709 let tab_invisible = window.text_system().shape_line(
10710 tab_char,
10711 invisible_symbol_font_size,
10712 &[TextRun {
10713 len: tab_len,
10714 font: self.style.text.font(),
10715 color: cx.theme().colors().editor_invisible,
10716 ..Default::default()
10717 }],
10718 None,
10719 );
10720
10721 let space_char = whitespace_map.space.clone();
10722 let space_len = space_char.len();
10723 let space_invisible = window.text_system().shape_line(
10724 space_char,
10725 invisible_symbol_font_size,
10726 &[TextRun {
10727 len: space_len,
10728 font: self.style.text.font(),
10729 color: cx.theme().colors().editor_invisible,
10730 ..Default::default()
10731 }],
10732 None,
10733 );
10734
10735 let mode = snapshot.mode.clone();
10736
10737 let (diff_hunk_controls, diff_hunk_control_bounds) =
10738 if is_read_only && !self.editor.read(cx).delegate_stage_and_restore {
10739 (vec![], vec![])
10740 } else {
10741 self.layout_diff_hunk_controls(
10742 start_row..end_row,
10743 &row_infos,
10744 &text_hitbox,
10745 newest_selection_head,
10746 line_height,
10747 right_margin,
10748 scroll_pixel_position,
10749 &display_hunks,
10750 &highlighted_rows,
10751 self.editor.clone(),
10752 window,
10753 cx,
10754 )
10755 };
10756
10757 let position_map = Rc::new(PositionMap {
10758 size: bounds.size,
10759 visible_row_range,
10760 scroll_position,
10761 scroll_pixel_position,
10762 scroll_max,
10763 line_layouts,
10764 line_height,
10765 em_width,
10766 em_advance,
10767 snapshot,
10768 text_align: self.style.text.text_align,
10769 content_width: text_hitbox.size.width,
10770 gutter_hitbox: gutter_hitbox.clone(),
10771 text_hitbox: text_hitbox.clone(),
10772 inline_blame_bounds: inline_blame_layout
10773 .as_ref()
10774 .map(|layout| (layout.bounds, layout.buffer_id, layout.entry.clone())),
10775 display_hunks: display_hunks.clone(),
10776 diff_hunk_control_bounds,
10777 });
10778
10779 self.editor.update(cx, |editor, _| {
10780 editor.last_position_map = Some(position_map.clone())
10781 });
10782
10783 EditorLayout {
10784 mode,
10785 position_map,
10786 visible_display_row_range: start_row..end_row,
10787 wrap_guides,
10788 indent_guides,
10789 hitbox,
10790 gutter_hitbox,
10791 display_hunks,
10792 content_origin,
10793 scrollbars_layout,
10794 minimap,
10795 active_rows,
10796 highlighted_rows,
10797 highlighted_ranges,
10798 highlighted_gutter_ranges,
10799 redacted_ranges,
10800 document_colors,
10801 line_elements,
10802 line_numbers,
10803 blamed_display_rows,
10804 inline_diagnostics,
10805 inline_blame_layout,
10806 inline_code_actions,
10807 blocks,
10808 cursors,
10809 visible_cursors,
10810 selections,
10811 edit_prediction_popover,
10812 diff_hunk_controls,
10813 mouse_context_menu,
10814 test_indicators,
10815 breakpoints,
10816 diff_review_button,
10817 crease_toggles,
10818 crease_trailers,
10819 tab_invisible,
10820 space_invisible,
10821 sticky_buffer_header,
10822 sticky_headers,
10823 expand_toggles,
10824 text_align: self.style.text.text_align,
10825 content_width: text_hitbox.size.width,
10826 }
10827 })
10828 })
10829 })
10830 }
10831
10832 fn paint(
10833 &mut self,
10834 _: Option<&GlobalElementId>,
10835 _inspector_id: Option<&gpui::InspectorElementId>,
10836 bounds: Bounds<gpui::Pixels>,
10837 _: &mut Self::RequestLayoutState,
10838 layout: &mut Self::PrepaintState,
10839 window: &mut Window,
10840 cx: &mut App,
10841 ) {
10842 if !layout.mode.is_minimap() {
10843 let focus_handle = self.editor.focus_handle(cx);
10844 let key_context = self
10845 .editor
10846 .update(cx, |editor, cx| editor.key_context(window, cx));
10847
10848 window.set_key_context(key_context);
10849 window.handle_input(
10850 &focus_handle,
10851 ElementInputHandler::new(bounds, self.editor.clone()),
10852 cx,
10853 );
10854 self.register_actions(window, cx);
10855 self.register_key_listeners(window, cx, layout);
10856 }
10857
10858 let text_style = TextStyleRefinement {
10859 font_size: Some(self.style.text.font_size),
10860 line_height: Some(self.style.text.line_height),
10861 ..Default::default()
10862 };
10863 let rem_size = self.rem_size(cx);
10864 window.with_rem_size(rem_size, |window| {
10865 window.with_text_style(Some(text_style), |window| {
10866 window.with_content_mask(Some(ContentMask { bounds }), |window| {
10867 self.paint_mouse_listeners(layout, window, cx);
10868 self.paint_background(layout, window, cx);
10869 self.paint_indent_guides(layout, window, cx);
10870
10871 if layout.gutter_hitbox.size.width > Pixels::ZERO {
10872 self.paint_blamed_display_rows(layout, window, cx);
10873 self.paint_line_numbers(layout, window, cx);
10874 }
10875
10876 self.paint_text(layout, window, cx);
10877
10878 if layout.gutter_hitbox.size.width > Pixels::ZERO {
10879 self.paint_gutter_highlights(layout, window, cx);
10880 self.paint_gutter_indicators(layout, window, cx);
10881 }
10882
10883 if !layout.blocks.is_empty() {
10884 window.with_element_namespace("blocks", |window| {
10885 self.paint_blocks(layout, window, cx);
10886 });
10887 }
10888
10889 window.with_element_namespace("blocks", |window| {
10890 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
10891 sticky_header.paint(window, cx)
10892 }
10893 });
10894
10895 self.paint_sticky_headers(layout, window, cx);
10896 self.paint_minimap(layout, window, cx);
10897 self.paint_scrollbars(layout, window, cx);
10898 self.paint_edit_prediction_popover(layout, window, cx);
10899 self.paint_mouse_context_menu(layout, window, cx);
10900 });
10901 })
10902 })
10903 }
10904}
10905
10906pub(super) fn gutter_bounds(
10907 editor_bounds: Bounds<Pixels>,
10908 gutter_dimensions: GutterDimensions,
10909) -> Bounds<Pixels> {
10910 Bounds {
10911 origin: editor_bounds.origin,
10912 size: size(gutter_dimensions.width, editor_bounds.size.height),
10913 }
10914}
10915
10916#[derive(Clone, Copy)]
10917struct ContextMenuLayout {
10918 y_flipped: bool,
10919 bounds: Bounds<Pixels>,
10920}
10921
10922/// Holds information required for layouting the editor scrollbars.
10923struct ScrollbarLayoutInformation {
10924 /// The bounds of the editor area (excluding the content offset).
10925 editor_bounds: Bounds<Pixels>,
10926 /// The available range to scroll within the document.
10927 scroll_range: Size<Pixels>,
10928 /// The space available for one glyph in the editor.
10929 glyph_grid_cell: Size<Pixels>,
10930}
10931
10932impl ScrollbarLayoutInformation {
10933 pub fn new(
10934 editor_bounds: Bounds<Pixels>,
10935 glyph_grid_cell: Size<Pixels>,
10936 document_size: Size<Pixels>,
10937 longest_line_blame_width: Pixels,
10938 settings: &EditorSettings,
10939 ) -> Self {
10940 let vertical_overscroll = match settings.scroll_beyond_last_line {
10941 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
10942 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
10943 ScrollBeyondLastLine::VerticalScrollMargin => {
10944 (1.0 + settings.vertical_scroll_margin) as f32 * glyph_grid_cell.height
10945 }
10946 };
10947
10948 let overscroll = size(longest_line_blame_width, vertical_overscroll);
10949
10950 ScrollbarLayoutInformation {
10951 editor_bounds,
10952 scroll_range: document_size + overscroll,
10953 glyph_grid_cell,
10954 }
10955 }
10956}
10957
10958impl IntoElement for EditorElement {
10959 type Element = Self;
10960
10961 fn into_element(self) -> Self::Element {
10962 self
10963 }
10964}
10965
10966pub struct EditorLayout {
10967 position_map: Rc<PositionMap>,
10968 hitbox: Hitbox,
10969 gutter_hitbox: Hitbox,
10970 content_origin: gpui::Point<Pixels>,
10971 scrollbars_layout: Option<EditorScrollbars>,
10972 minimap: Option<MinimapLayout>,
10973 mode: EditorMode,
10974 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
10975 indent_guides: Option<Vec<IndentGuideLayout>>,
10976 visible_display_row_range: Range<DisplayRow>,
10977 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
10978 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
10979 line_elements: SmallVec<[AnyElement; 1]>,
10980 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
10981 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
10982 blamed_display_rows: Option<Vec<AnyElement>>,
10983 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
10984 inline_blame_layout: Option<InlineBlameLayout>,
10985 inline_code_actions: Option<AnyElement>,
10986 blocks: Vec<BlockLayout>,
10987 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
10988 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
10989 redacted_ranges: Vec<Range<DisplayPoint>>,
10990 cursors: Vec<(DisplayPoint, Hsla)>,
10991 visible_cursors: Vec<CursorLayout>,
10992 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
10993 test_indicators: Vec<AnyElement>,
10994 breakpoints: Vec<AnyElement>,
10995 diff_review_button: Option<AnyElement>,
10996 crease_toggles: Vec<Option<AnyElement>>,
10997 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
10998 diff_hunk_controls: Vec<AnyElement>,
10999 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
11000 edit_prediction_popover: Option<AnyElement>,
11001 mouse_context_menu: Option<AnyElement>,
11002 tab_invisible: ShapedLine,
11003 space_invisible: ShapedLine,
11004 sticky_buffer_header: Option<AnyElement>,
11005 sticky_headers: Option<StickyHeaders>,
11006 document_colors: Option<(DocumentColorsRenderMode, Vec<(Range<DisplayPoint>, Hsla)>)>,
11007 text_align: TextAlign,
11008 content_width: Pixels,
11009}
11010
11011struct StickyHeaders {
11012 lines: Vec<StickyHeaderLine>,
11013 gutter_background: Hsla,
11014 content_background: Hsla,
11015 gutter_right_padding: Pixels,
11016}
11017
11018struct StickyHeaderLine {
11019 row: DisplayRow,
11020 offset: Pixels,
11021 line: LineWithInvisibles,
11022 line_number: Option<ShapedLine>,
11023 elements: SmallVec<[AnyElement; 1]>,
11024 available_text_width: Pixels,
11025 target_anchor: Anchor,
11026 hitbox: Hitbox,
11027}
11028
11029impl EditorLayout {
11030 fn line_end_overshoot(&self) -> Pixels {
11031 0.15 * self.position_map.line_height
11032 }
11033}
11034
11035impl StickyHeaders {
11036 fn paint(
11037 &mut self,
11038 layout: &mut EditorLayout,
11039 whitespace_setting: ShowWhitespaceSetting,
11040 window: &mut Window,
11041 cx: &mut App,
11042 ) {
11043 let line_height = layout.position_map.line_height;
11044
11045 for line in self.lines.iter_mut().rev() {
11046 window.paint_layer(
11047 Bounds::new(
11048 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
11049 size(line.hitbox.size.width, line_height),
11050 ),
11051 |window| {
11052 let gutter_bounds = Bounds::new(
11053 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
11054 size(layout.gutter_hitbox.size.width, line_height),
11055 );
11056 window.paint_quad(fill(gutter_bounds, self.gutter_background));
11057
11058 let text_bounds = Bounds::new(
11059 layout.position_map.text_hitbox.origin + point(Pixels::ZERO, line.offset),
11060 size(line.available_text_width, line_height),
11061 );
11062 window.paint_quad(fill(text_bounds, self.content_background));
11063
11064 if line.hitbox.is_hovered(window) {
11065 let hover_overlay = cx.theme().colors().panel_overlay_hover;
11066 window.paint_quad(fill(gutter_bounds, hover_overlay));
11067 window.paint_quad(fill(text_bounds, hover_overlay));
11068 }
11069
11070 line.paint(
11071 layout,
11072 self.gutter_right_padding,
11073 line.available_text_width,
11074 layout.content_origin,
11075 line_height,
11076 whitespace_setting,
11077 window,
11078 cx,
11079 );
11080 },
11081 );
11082
11083 window.set_cursor_style(CursorStyle::PointingHand, &line.hitbox);
11084 }
11085 }
11086}
11087
11088impl StickyHeaderLine {
11089 fn new(
11090 row: DisplayRow,
11091 offset: Pixels,
11092 mut line: LineWithInvisibles,
11093 line_number: Option<ShapedLine>,
11094 target_anchor: Anchor,
11095 line_height: Pixels,
11096 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
11097 content_origin: gpui::Point<Pixels>,
11098 gutter_hitbox: &Hitbox,
11099 text_hitbox: &Hitbox,
11100 window: &mut Window,
11101 cx: &mut App,
11102 ) -> Self {
11103 let mut elements = SmallVec::<[AnyElement; 1]>::new();
11104 line.prepaint_with_custom_offset(
11105 line_height,
11106 scroll_pixel_position,
11107 content_origin,
11108 offset,
11109 &mut elements,
11110 window,
11111 cx,
11112 );
11113
11114 let hitbox_bounds = Bounds::new(
11115 gutter_hitbox.origin + point(Pixels::ZERO, offset),
11116 size(text_hitbox.right() - gutter_hitbox.left(), line_height),
11117 );
11118 let available_text_width =
11119 (hitbox_bounds.size.width - gutter_hitbox.size.width).max(Pixels::ZERO);
11120
11121 Self {
11122 row,
11123 offset,
11124 line,
11125 line_number,
11126 elements,
11127 available_text_width,
11128 target_anchor,
11129 hitbox: window.insert_hitbox(hitbox_bounds, HitboxBehavior::BlockMouseExceptScroll),
11130 }
11131 }
11132
11133 fn paint(
11134 &mut self,
11135 layout: &EditorLayout,
11136 gutter_right_padding: Pixels,
11137 available_text_width: Pixels,
11138 content_origin: gpui::Point<Pixels>,
11139 line_height: Pixels,
11140 whitespace_setting: ShowWhitespaceSetting,
11141 window: &mut Window,
11142 cx: &mut App,
11143 ) {
11144 window.with_content_mask(
11145 Some(ContentMask {
11146 bounds: Bounds::new(
11147 layout.position_map.text_hitbox.bounds.origin
11148 + point(Pixels::ZERO, self.offset),
11149 size(available_text_width, line_height),
11150 ),
11151 }),
11152 |window| {
11153 self.line.draw_with_custom_offset(
11154 layout,
11155 self.row,
11156 content_origin,
11157 self.offset,
11158 whitespace_setting,
11159 &[],
11160 window,
11161 cx,
11162 );
11163 for element in &mut self.elements {
11164 element.paint(window, cx);
11165 }
11166 },
11167 );
11168
11169 if let Some(line_number) = &self.line_number {
11170 let gutter_origin = layout.gutter_hitbox.origin + point(Pixels::ZERO, self.offset);
11171 let gutter_width = layout.gutter_hitbox.size.width;
11172 let origin = point(
11173 gutter_origin.x + gutter_width - gutter_right_padding - line_number.width,
11174 gutter_origin.y,
11175 );
11176 line_number
11177 .paint(origin, line_height, TextAlign::Left, None, window, cx)
11178 .log_err();
11179 }
11180 }
11181}
11182
11183#[derive(Debug)]
11184struct LineNumberSegment {
11185 shaped_line: ShapedLine,
11186 hitbox: Option<Hitbox>,
11187}
11188
11189#[derive(Debug)]
11190struct LineNumberLayout {
11191 segments: SmallVec<[LineNumberSegment; 1]>,
11192}
11193
11194struct ColoredRange<T> {
11195 start: T,
11196 end: T,
11197 color: Hsla,
11198}
11199
11200impl Along for ScrollbarAxes {
11201 type Unit = bool;
11202
11203 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
11204 match axis {
11205 ScrollbarAxis::Horizontal => self.horizontal,
11206 ScrollbarAxis::Vertical => self.vertical,
11207 }
11208 }
11209
11210 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
11211 match axis {
11212 ScrollbarAxis::Horizontal => ScrollbarAxes {
11213 horizontal: f(self.horizontal),
11214 vertical: self.vertical,
11215 },
11216 ScrollbarAxis::Vertical => ScrollbarAxes {
11217 horizontal: self.horizontal,
11218 vertical: f(self.vertical),
11219 },
11220 }
11221 }
11222}
11223
11224#[derive(Clone)]
11225struct EditorScrollbars {
11226 pub vertical: Option<ScrollbarLayout>,
11227 pub horizontal: Option<ScrollbarLayout>,
11228 pub visible: bool,
11229}
11230
11231impl EditorScrollbars {
11232 pub fn from_scrollbar_axes(
11233 show_scrollbar: ScrollbarAxes,
11234 layout_information: &ScrollbarLayoutInformation,
11235 content_offset: gpui::Point<Pixels>,
11236 scroll_position: gpui::Point<f64>,
11237 scrollbar_width: Pixels,
11238 right_margin: Pixels,
11239 editor_width: Pixels,
11240 show_scrollbars: bool,
11241 scrollbar_state: Option<&ActiveScrollbarState>,
11242 window: &mut Window,
11243 ) -> Self {
11244 let ScrollbarLayoutInformation {
11245 editor_bounds,
11246 scroll_range,
11247 glyph_grid_cell,
11248 } = layout_information;
11249
11250 let viewport_size = size(editor_width, editor_bounds.size.height);
11251
11252 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
11253 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
11254 Corner::BottomLeft,
11255 editor_bounds.bottom_left(),
11256 size(
11257 // The horizontal viewport size differs from the space available for the
11258 // horizontal scrollbar, so we have to manually stitch it together here.
11259 editor_bounds.size.width - right_margin,
11260 scrollbar_width,
11261 ),
11262 ),
11263 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
11264 Corner::TopRight,
11265 editor_bounds.top_right(),
11266 size(scrollbar_width, viewport_size.height),
11267 ),
11268 };
11269
11270 let mut create_scrollbar_layout = |axis| {
11271 let viewport_size = viewport_size.along(axis);
11272 let scroll_range = scroll_range.along(axis);
11273
11274 // We always want a vertical scrollbar track for scrollbar diagnostic visibility.
11275 (show_scrollbar.along(axis)
11276 && (axis == ScrollbarAxis::Vertical || scroll_range > viewport_size))
11277 .then(|| {
11278 ScrollbarLayout::new(
11279 window.insert_hitbox(scrollbar_bounds_for(axis), HitboxBehavior::Normal),
11280 viewport_size,
11281 scroll_range,
11282 glyph_grid_cell.along(axis),
11283 content_offset.along(axis),
11284 scroll_position.along(axis),
11285 show_scrollbars,
11286 axis,
11287 )
11288 .with_thumb_state(
11289 scrollbar_state.and_then(|state| state.thumb_state_for_axis(axis)),
11290 )
11291 })
11292 };
11293
11294 Self {
11295 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
11296 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
11297 visible: show_scrollbars,
11298 }
11299 }
11300
11301 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
11302 [
11303 (&self.vertical, ScrollbarAxis::Vertical),
11304 (&self.horizontal, ScrollbarAxis::Horizontal),
11305 ]
11306 .into_iter()
11307 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
11308 }
11309
11310 /// Returns the currently hovered scrollbar axis, if any.
11311 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
11312 self.iter_scrollbars()
11313 .find(|s| s.0.hitbox.is_hovered(window))
11314 }
11315}
11316
11317#[derive(Clone)]
11318struct ScrollbarLayout {
11319 hitbox: Hitbox,
11320 visible_range: Range<ScrollOffset>,
11321 text_unit_size: Pixels,
11322 thumb_bounds: Option<Bounds<Pixels>>,
11323 thumb_state: ScrollbarThumbState,
11324}
11325
11326impl ScrollbarLayout {
11327 const BORDER_WIDTH: Pixels = px(1.0);
11328 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
11329 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
11330 const MIN_THUMB_SIZE: Pixels = px(25.0);
11331
11332 fn new(
11333 scrollbar_track_hitbox: Hitbox,
11334 viewport_size: Pixels,
11335 scroll_range: Pixels,
11336 glyph_space: Pixels,
11337 content_offset: Pixels,
11338 scroll_position: ScrollOffset,
11339 show_thumb: bool,
11340 axis: ScrollbarAxis,
11341 ) -> Self {
11342 let track_bounds = scrollbar_track_hitbox.bounds;
11343 // The length of the track available to the scrollbar thumb. We deliberately
11344 // exclude the content size here so that the thumb aligns with the content.
11345 let track_length = track_bounds.size.along(axis) - content_offset;
11346
11347 Self::new_with_hitbox_and_track_length(
11348 scrollbar_track_hitbox,
11349 track_length,
11350 viewport_size,
11351 scroll_range.into(),
11352 glyph_space,
11353 content_offset.into(),
11354 scroll_position,
11355 show_thumb,
11356 axis,
11357 )
11358 }
11359
11360 fn for_minimap(
11361 minimap_track_hitbox: Hitbox,
11362 visible_lines: f64,
11363 total_editor_lines: f64,
11364 minimap_line_height: Pixels,
11365 scroll_position: ScrollOffset,
11366 minimap_scroll_top: ScrollOffset,
11367 show_thumb: bool,
11368 ) -> Self {
11369 // The scrollbar thumb size is calculated as
11370 // (visible_content/total_content) Γ scrollbar_track_length.
11371 //
11372 // For the minimap's thumb layout, we leverage this by setting the
11373 // scrollbar track length to the entire document size (using minimap line
11374 // height). This creates a thumb that exactly represents the editor
11375 // viewport scaled to minimap proportions.
11376 //
11377 // We adjust the thumb position relative to `minimap_scroll_top` to
11378 // accommodate for the deliberately oversized track.
11379 //
11380 // This approach ensures that the minimap thumb accurately reflects the
11381 // editor's current scroll position whilst nicely synchronizing the minimap
11382 // thumb and scrollbar thumb.
11383 let scroll_range = total_editor_lines * f64::from(minimap_line_height);
11384 let viewport_size = visible_lines * f64::from(minimap_line_height);
11385
11386 let track_top_offset = -minimap_scroll_top * f64::from(minimap_line_height);
11387
11388 Self::new_with_hitbox_and_track_length(
11389 minimap_track_hitbox,
11390 Pixels::from(scroll_range),
11391 Pixels::from(viewport_size),
11392 scroll_range,
11393 minimap_line_height,
11394 track_top_offset,
11395 scroll_position,
11396 show_thumb,
11397 ScrollbarAxis::Vertical,
11398 )
11399 }
11400
11401 fn new_with_hitbox_and_track_length(
11402 scrollbar_track_hitbox: Hitbox,
11403 track_length: Pixels,
11404 viewport_size: Pixels,
11405 scroll_range: f64,
11406 glyph_space: Pixels,
11407 content_offset: ScrollOffset,
11408 scroll_position: ScrollOffset,
11409 show_thumb: bool,
11410 axis: ScrollbarAxis,
11411 ) -> Self {
11412 let text_units_per_page = viewport_size.to_f64() / glyph_space.to_f64();
11413 let visible_range = scroll_position..scroll_position + text_units_per_page;
11414 let total_text_units = scroll_range / glyph_space.to_f64();
11415
11416 let thumb_percentage = text_units_per_page / total_text_units;
11417 let thumb_size = Pixels::from(ScrollOffset::from(track_length) * thumb_percentage)
11418 .max(ScrollbarLayout::MIN_THUMB_SIZE)
11419 .min(track_length);
11420
11421 let text_unit_divisor = (total_text_units - text_units_per_page).max(0.);
11422
11423 let content_larger_than_viewport = text_unit_divisor > 0.;
11424
11425 let text_unit_size = if content_larger_than_viewport {
11426 Pixels::from(ScrollOffset::from(track_length - thumb_size) / text_unit_divisor)
11427 } else {
11428 glyph_space
11429 };
11430
11431 let thumb_bounds = (show_thumb && content_larger_than_viewport).then(|| {
11432 Self::thumb_bounds(
11433 &scrollbar_track_hitbox,
11434 content_offset,
11435 visible_range.start,
11436 text_unit_size,
11437 thumb_size,
11438 axis,
11439 )
11440 });
11441
11442 ScrollbarLayout {
11443 hitbox: scrollbar_track_hitbox,
11444 visible_range,
11445 text_unit_size,
11446 thumb_bounds,
11447 thumb_state: Default::default(),
11448 }
11449 }
11450
11451 fn with_thumb_state(self, thumb_state: Option<ScrollbarThumbState>) -> Self {
11452 if let Some(thumb_state) = thumb_state {
11453 Self {
11454 thumb_state,
11455 ..self
11456 }
11457 } else {
11458 self
11459 }
11460 }
11461
11462 fn thumb_bounds(
11463 scrollbar_track: &Hitbox,
11464 content_offset: f64,
11465 visible_range_start: f64,
11466 text_unit_size: Pixels,
11467 thumb_size: Pixels,
11468 axis: ScrollbarAxis,
11469 ) -> Bounds<Pixels> {
11470 let thumb_origin = scrollbar_track.origin.apply_along(axis, |origin| {
11471 origin
11472 + Pixels::from(
11473 content_offset + visible_range_start * ScrollOffset::from(text_unit_size),
11474 )
11475 });
11476 Bounds::new(
11477 thumb_origin,
11478 scrollbar_track.size.apply_along(axis, |_| thumb_size),
11479 )
11480 }
11481
11482 fn thumb_hovered(&self, position: &gpui::Point<Pixels>) -> bool {
11483 self.thumb_bounds
11484 .is_some_and(|bounds| bounds.contains(position))
11485 }
11486
11487 fn marker_quads_for_ranges(
11488 &self,
11489 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
11490 column: Option<usize>,
11491 ) -> Vec<PaintQuad> {
11492 struct MinMax {
11493 min: Pixels,
11494 max: Pixels,
11495 }
11496 let (x_range, height_limit) = if let Some(column) = column {
11497 let column_width = ((self.hitbox.size.width - Self::BORDER_WIDTH) / 3.0).floor();
11498 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
11499 let end = start + column_width;
11500 (
11501 Range { start, end },
11502 MinMax {
11503 min: Self::MIN_MARKER_HEIGHT,
11504 max: px(f32::MAX),
11505 },
11506 )
11507 } else {
11508 (
11509 Range {
11510 start: Self::BORDER_WIDTH,
11511 end: self.hitbox.size.width,
11512 },
11513 MinMax {
11514 min: Self::LINE_MARKER_HEIGHT,
11515 max: Self::LINE_MARKER_HEIGHT,
11516 },
11517 )
11518 };
11519
11520 let row_to_y = |row: DisplayRow| row.as_f64() as f32 * self.text_unit_size;
11521 let mut pixel_ranges = row_ranges
11522 .into_iter()
11523 .map(|range| {
11524 let start_y = row_to_y(range.start);
11525 let end_y = row_to_y(range.end)
11526 + self
11527 .text_unit_size
11528 .max(height_limit.min)
11529 .min(height_limit.max);
11530 ColoredRange {
11531 start: start_y,
11532 end: end_y,
11533 color: range.color,
11534 }
11535 })
11536 .peekable();
11537
11538 let mut quads = Vec::new();
11539 while let Some(mut pixel_range) = pixel_ranges.next() {
11540 while let Some(next_pixel_range) = pixel_ranges.peek() {
11541 if pixel_range.end >= next_pixel_range.start - px(1.0)
11542 && pixel_range.color == next_pixel_range.color
11543 {
11544 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
11545 pixel_ranges.next();
11546 } else {
11547 break;
11548 }
11549 }
11550
11551 let bounds = Bounds::from_corners(
11552 point(x_range.start, pixel_range.start),
11553 point(x_range.end, pixel_range.end),
11554 );
11555 quads.push(quad(
11556 bounds,
11557 Corners::default(),
11558 pixel_range.color,
11559 Edges::default(),
11560 Hsla::transparent_black(),
11561 BorderStyle::default(),
11562 ));
11563 }
11564
11565 quads
11566 }
11567}
11568
11569struct MinimapLayout {
11570 pub minimap: AnyElement,
11571 pub thumb_layout: ScrollbarLayout,
11572 pub minimap_scroll_top: ScrollOffset,
11573 pub minimap_line_height: Pixels,
11574 pub thumb_border_style: MinimapThumbBorder,
11575 pub max_scroll_top: ScrollOffset,
11576}
11577
11578impl MinimapLayout {
11579 /// The minimum width of the minimap in columns. If the minimap is smaller than this, it will be hidden.
11580 const MINIMAP_MIN_WIDTH_COLUMNS: f32 = 20.;
11581 /// The minimap width as a percentage of the editor width.
11582 const MINIMAP_WIDTH_PCT: f32 = 0.15;
11583 /// Calculates the scroll top offset the minimap editor has to have based on the
11584 /// current scroll progress.
11585 fn calculate_minimap_top_offset(
11586 document_lines: f64,
11587 visible_editor_lines: f64,
11588 visible_minimap_lines: f64,
11589 scroll_position: f64,
11590 ) -> ScrollOffset {
11591 let non_visible_document_lines = (document_lines - visible_editor_lines).max(0.);
11592 if non_visible_document_lines == 0. {
11593 0.
11594 } else {
11595 let scroll_percentage = (scroll_position / non_visible_document_lines).clamp(0., 1.);
11596 scroll_percentage * (document_lines - visible_minimap_lines).max(0.)
11597 }
11598 }
11599}
11600
11601struct CreaseTrailerLayout {
11602 element: AnyElement,
11603 bounds: Bounds<Pixels>,
11604}
11605
11606pub(crate) struct PositionMap {
11607 pub size: Size<Pixels>,
11608 pub line_height: Pixels,
11609 pub scroll_position: gpui::Point<ScrollOffset>,
11610 pub scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
11611 pub scroll_max: gpui::Point<ScrollOffset>,
11612 pub em_width: Pixels,
11613 pub em_advance: Pixels,
11614 pub visible_row_range: Range<DisplayRow>,
11615 pub line_layouts: Vec<LineWithInvisibles>,
11616 pub snapshot: EditorSnapshot,
11617 pub text_align: TextAlign,
11618 pub content_width: Pixels,
11619 pub text_hitbox: Hitbox,
11620 pub gutter_hitbox: Hitbox,
11621 pub inline_blame_bounds: Option<(Bounds<Pixels>, BufferId, BlameEntry)>,
11622 pub display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
11623 pub diff_hunk_control_bounds: Vec<(DisplayRow, Bounds<Pixels>)>,
11624}
11625
11626#[derive(Debug, Copy, Clone)]
11627pub struct PointForPosition {
11628 pub previous_valid: DisplayPoint,
11629 pub next_valid: DisplayPoint,
11630 pub exact_unclipped: DisplayPoint,
11631 pub column_overshoot_after_line_end: u32,
11632}
11633
11634impl PointForPosition {
11635 pub fn as_valid(&self) -> Option<DisplayPoint> {
11636 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
11637 Some(self.previous_valid)
11638 } else {
11639 None
11640 }
11641 }
11642
11643 pub fn intersects_selection(&self, selection: &Selection<DisplayPoint>) -> bool {
11644 let Some(valid_point) = self.as_valid() else {
11645 return false;
11646 };
11647 let range = selection.range();
11648
11649 let candidate_row = valid_point.row();
11650 let candidate_col = valid_point.column();
11651
11652 let start_row = range.start.row();
11653 let start_col = range.start.column();
11654 let end_row = range.end.row();
11655 let end_col = range.end.column();
11656
11657 if candidate_row < start_row || candidate_row > end_row {
11658 false
11659 } else if start_row == end_row {
11660 candidate_col >= start_col && candidate_col < end_col
11661 } else if candidate_row == start_row {
11662 candidate_col >= start_col
11663 } else if candidate_row == end_row {
11664 candidate_col < end_col
11665 } else {
11666 true
11667 }
11668 }
11669}
11670
11671impl PositionMap {
11672 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
11673 let text_bounds = self.text_hitbox.bounds;
11674 let scroll_position = self.snapshot.scroll_position();
11675 let position = position - text_bounds.origin;
11676 let y = position.y.max(px(0.)).min(self.size.height);
11677 let x = position.x + (scroll_position.x as f32 * self.em_advance);
11678 let row = ((y / self.line_height) as f64 + scroll_position.y) as u32;
11679
11680 let (column, x_overshoot_after_line_end) = if let Some(line) = self
11681 .line_layouts
11682 .get(row as usize - scroll_position.y as usize)
11683 {
11684 let alignment_offset = line.alignment_offset(self.text_align, self.content_width);
11685 let x_relative_to_text = x - alignment_offset;
11686 if let Some(ix) = line.index_for_x(x_relative_to_text) {
11687 (ix as u32, px(0.))
11688 } else {
11689 (line.len as u32, px(0.).max(x_relative_to_text - line.width))
11690 }
11691 } else {
11692 (0, x)
11693 };
11694
11695 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
11696 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
11697 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
11698
11699 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
11700 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
11701 PointForPosition {
11702 previous_valid,
11703 next_valid,
11704 exact_unclipped,
11705 column_overshoot_after_line_end,
11706 }
11707 }
11708}
11709
11710pub(crate) struct BlockLayout {
11711 pub(crate) id: BlockId,
11712 pub(crate) x_offset: Pixels,
11713 pub(crate) row: Option<DisplayRow>,
11714 pub(crate) element: AnyElement,
11715 pub(crate) available_space: Size<AvailableSpace>,
11716 pub(crate) style: BlockStyle,
11717 pub(crate) overlaps_gutter: bool,
11718 pub(crate) is_buffer_header: bool,
11719}
11720
11721pub fn layout_line(
11722 row: DisplayRow,
11723 snapshot: &EditorSnapshot,
11724 style: &EditorStyle,
11725 text_width: Pixels,
11726 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
11727 window: &mut Window,
11728 cx: &mut App,
11729) -> LineWithInvisibles {
11730 let use_tree_sitter =
11731 !snapshot.semantic_tokens_enabled || snapshot.use_tree_sitter_for_syntax(row, cx);
11732 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), use_tree_sitter, style);
11733 LineWithInvisibles::from_chunks(
11734 chunks,
11735 style,
11736 MAX_LINE_LEN,
11737 1,
11738 &snapshot.mode,
11739 text_width,
11740 is_row_soft_wrapped,
11741 &[],
11742 window,
11743 cx,
11744 )
11745 .pop()
11746 .unwrap()
11747}
11748
11749#[derive(Debug)]
11750pub struct IndentGuideLayout {
11751 origin: gpui::Point<Pixels>,
11752 length: Pixels,
11753 single_indent_width: Pixels,
11754 depth: u32,
11755 active: bool,
11756 settings: IndentGuideSettings,
11757}
11758
11759pub struct CursorLayout {
11760 origin: gpui::Point<Pixels>,
11761 block_width: Pixels,
11762 line_height: Pixels,
11763 color: Hsla,
11764 shape: CursorShape,
11765 block_text: Option<ShapedLine>,
11766 cursor_name: Option<AnyElement>,
11767}
11768
11769#[derive(Debug)]
11770pub struct CursorName {
11771 string: SharedString,
11772 color: Hsla,
11773 is_top_row: bool,
11774}
11775
11776impl CursorLayout {
11777 pub fn new(
11778 origin: gpui::Point<Pixels>,
11779 block_width: Pixels,
11780 line_height: Pixels,
11781 color: Hsla,
11782 shape: CursorShape,
11783 block_text: Option<ShapedLine>,
11784 ) -> CursorLayout {
11785 CursorLayout {
11786 origin,
11787 block_width,
11788 line_height,
11789 color,
11790 shape,
11791 block_text,
11792 cursor_name: None,
11793 }
11794 }
11795
11796 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
11797 Bounds {
11798 origin: self.origin + origin,
11799 size: size(self.block_width, self.line_height),
11800 }
11801 }
11802
11803 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
11804 match self.shape {
11805 CursorShape::Bar => Bounds {
11806 origin: self.origin + origin,
11807 size: size(px(2.0), self.line_height),
11808 },
11809 CursorShape::Block | CursorShape::Hollow => Bounds {
11810 origin: self.origin + origin,
11811 size: size(self.block_width, self.line_height),
11812 },
11813 CursorShape::Underline => Bounds {
11814 origin: self.origin
11815 + origin
11816 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
11817 size: size(self.block_width, px(2.0)),
11818 },
11819 }
11820 }
11821
11822 pub fn layout(
11823 &mut self,
11824 origin: gpui::Point<Pixels>,
11825 cursor_name: Option<CursorName>,
11826 window: &mut Window,
11827 cx: &mut App,
11828 ) {
11829 if let Some(cursor_name) = cursor_name {
11830 let bounds = self.bounds(origin);
11831 let text_size = self.line_height / 1.5;
11832
11833 let name_origin = if cursor_name.is_top_row {
11834 point(bounds.right() - px(1.), bounds.top())
11835 } else {
11836 match self.shape {
11837 CursorShape::Bar => point(
11838 bounds.right() - px(2.),
11839 bounds.top() - text_size / 2. - px(1.),
11840 ),
11841 _ => point(
11842 bounds.right() - px(1.),
11843 bounds.top() - text_size / 2. - px(1.),
11844 ),
11845 }
11846 };
11847 let mut name_element = div()
11848 .bg(self.color)
11849 .text_size(text_size)
11850 .px_0p5()
11851 .line_height(text_size + px(2.))
11852 .text_color(cursor_name.color)
11853 .child(cursor_name.string)
11854 .into_any_element();
11855
11856 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
11857
11858 self.cursor_name = Some(name_element);
11859 }
11860 }
11861
11862 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
11863 let bounds = self.bounds(origin);
11864
11865 //Draw background or border quad
11866 let cursor = if matches!(self.shape, CursorShape::Hollow) {
11867 outline(bounds, self.color, BorderStyle::Solid)
11868 } else {
11869 fill(bounds, self.color)
11870 };
11871
11872 if let Some(name) = &mut self.cursor_name {
11873 name.paint(window, cx);
11874 }
11875
11876 window.paint_quad(cursor);
11877
11878 if let Some(block_text) = &self.block_text {
11879 block_text
11880 .paint(
11881 self.origin + origin,
11882 self.line_height,
11883 TextAlign::Left,
11884 None,
11885 window,
11886 cx,
11887 )
11888 .log_err();
11889 }
11890 }
11891
11892 pub fn shape(&self) -> CursorShape {
11893 self.shape
11894 }
11895}
11896
11897#[derive(Debug)]
11898pub struct HighlightedRange {
11899 pub start_y: Pixels,
11900 pub line_height: Pixels,
11901 pub lines: Vec<HighlightedRangeLine>,
11902 pub color: Hsla,
11903 pub corner_radius: Pixels,
11904}
11905
11906#[derive(Debug)]
11907pub struct HighlightedRangeLine {
11908 pub start_x: Pixels,
11909 pub end_x: Pixels,
11910}
11911
11912impl HighlightedRange {
11913 pub fn paint(&self, fill: bool, bounds: Bounds<Pixels>, window: &mut Window) {
11914 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
11915 self.paint_lines(self.start_y, &self.lines[0..1], fill, bounds, window);
11916 self.paint_lines(
11917 self.start_y + self.line_height,
11918 &self.lines[1..],
11919 fill,
11920 bounds,
11921 window,
11922 );
11923 } else {
11924 self.paint_lines(self.start_y, &self.lines, fill, bounds, window);
11925 }
11926 }
11927
11928 fn paint_lines(
11929 &self,
11930 start_y: Pixels,
11931 lines: &[HighlightedRangeLine],
11932 fill: bool,
11933 _bounds: Bounds<Pixels>,
11934 window: &mut Window,
11935 ) {
11936 if lines.is_empty() {
11937 return;
11938 }
11939
11940 let first_line = lines.first().unwrap();
11941 let last_line = lines.last().unwrap();
11942
11943 let first_top_left = point(first_line.start_x, start_y);
11944 let first_top_right = point(first_line.end_x, start_y);
11945
11946 let curve_height = point(Pixels::ZERO, self.corner_radius);
11947 let curve_width = |start_x: Pixels, end_x: Pixels| {
11948 let max = (end_x - start_x) / 2.;
11949 let width = if max < self.corner_radius {
11950 max
11951 } else {
11952 self.corner_radius
11953 };
11954
11955 point(width, Pixels::ZERO)
11956 };
11957
11958 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
11959 let mut builder = if fill {
11960 gpui::PathBuilder::fill()
11961 } else {
11962 gpui::PathBuilder::stroke(px(1.))
11963 };
11964 builder.move_to(first_top_right - top_curve_width);
11965 builder.curve_to(first_top_right + curve_height, first_top_right);
11966
11967 let mut iter = lines.iter().enumerate().peekable();
11968 while let Some((ix, line)) = iter.next() {
11969 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
11970
11971 if let Some((_, next_line)) = iter.peek() {
11972 let next_top_right = point(next_line.end_x, bottom_right.y);
11973
11974 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
11975 Ordering::Equal => {
11976 builder.line_to(bottom_right);
11977 }
11978 Ordering::Less => {
11979 let curve_width = curve_width(next_top_right.x, bottom_right.x);
11980 builder.line_to(bottom_right - curve_height);
11981 if self.corner_radius > Pixels::ZERO {
11982 builder.curve_to(bottom_right - curve_width, bottom_right);
11983 }
11984 builder.line_to(next_top_right + curve_width);
11985 if self.corner_radius > Pixels::ZERO {
11986 builder.curve_to(next_top_right + curve_height, next_top_right);
11987 }
11988 }
11989 Ordering::Greater => {
11990 let curve_width = curve_width(bottom_right.x, next_top_right.x);
11991 builder.line_to(bottom_right - curve_height);
11992 if self.corner_radius > Pixels::ZERO {
11993 builder.curve_to(bottom_right + curve_width, bottom_right);
11994 }
11995 builder.line_to(next_top_right - curve_width);
11996 if self.corner_radius > Pixels::ZERO {
11997 builder.curve_to(next_top_right + curve_height, next_top_right);
11998 }
11999 }
12000 }
12001 } else {
12002 let curve_width = curve_width(line.start_x, line.end_x);
12003 builder.line_to(bottom_right - curve_height);
12004 if self.corner_radius > Pixels::ZERO {
12005 builder.curve_to(bottom_right - curve_width, bottom_right);
12006 }
12007
12008 let bottom_left = point(line.start_x, bottom_right.y);
12009 builder.line_to(bottom_left + curve_width);
12010 if self.corner_radius > Pixels::ZERO {
12011 builder.curve_to(bottom_left - curve_height, bottom_left);
12012 }
12013 }
12014 }
12015
12016 if first_line.start_x > last_line.start_x {
12017 let curve_width = curve_width(last_line.start_x, first_line.start_x);
12018 let second_top_left = point(last_line.start_x, start_y + self.line_height);
12019 builder.line_to(second_top_left + curve_height);
12020 if self.corner_radius > Pixels::ZERO {
12021 builder.curve_to(second_top_left + curve_width, second_top_left);
12022 }
12023 let first_bottom_left = point(first_line.start_x, second_top_left.y);
12024 builder.line_to(first_bottom_left - curve_width);
12025 if self.corner_radius > Pixels::ZERO {
12026 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
12027 }
12028 }
12029
12030 builder.line_to(first_top_left + curve_height);
12031 if self.corner_radius > Pixels::ZERO {
12032 builder.curve_to(first_top_left + top_curve_width, first_top_left);
12033 }
12034 builder.line_to(first_top_right - top_curve_width);
12035
12036 if let Ok(path) = builder.build() {
12037 window.paint_path(path, self.color);
12038 }
12039 }
12040}
12041
12042pub(crate) struct StickyHeader {
12043 pub item: language::OutlineItem<Anchor>,
12044 pub sticky_row: DisplayRow,
12045 pub start_point: Point,
12046 pub offset: ScrollOffset,
12047}
12048
12049enum CursorPopoverType {
12050 CodeContextMenu,
12051 EditPrediction,
12052}
12053
12054pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
12055 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
12056}
12057
12058fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
12059 (delta.pow(1.2) / 300.0).into()
12060}
12061
12062pub fn register_action<T: Action>(
12063 editor: &Entity<Editor>,
12064 window: &mut Window,
12065 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
12066) {
12067 let editor = editor.clone();
12068 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
12069 let action = action.downcast_ref().unwrap();
12070 if phase == DispatchPhase::Bubble {
12071 editor.update(cx, |editor, cx| {
12072 listener(editor, action, window, cx);
12073 })
12074 }
12075 })
12076}
12077
12078/// Shared between `prepaint` and `compute_auto_height_layout` to ensure
12079/// both full and auto-height editors compute wrap widths consistently.
12080fn calculate_wrap_width(
12081 soft_wrap: SoftWrap,
12082 editor_width: Pixels,
12083 em_width: Pixels,
12084) -> Option<Pixels> {
12085 let wrap_width_for = |column: u32| (column as f32 * em_width).ceil();
12086
12087 match soft_wrap {
12088 SoftWrap::GitDiff => None,
12089 SoftWrap::None => Some(wrap_width_for(MAX_LINE_LEN as u32 / 2)),
12090 SoftWrap::EditorWidth => Some(editor_width),
12091 SoftWrap::Column(column) => Some(wrap_width_for(column)),
12092 SoftWrap::Bounded(column) => Some(editor_width.min(wrap_width_for(column))),
12093 }
12094}
12095
12096fn compute_auto_height_layout(
12097 editor: &mut Editor,
12098 min_lines: usize,
12099 max_lines: Option<usize>,
12100 known_dimensions: Size<Option<Pixels>>,
12101 available_width: AvailableSpace,
12102 window: &mut Window,
12103 cx: &mut Context<Editor>,
12104) -> Option<Size<Pixels>> {
12105 let width = known_dimensions.width.or({
12106 if let AvailableSpace::Definite(available_width) = available_width {
12107 Some(available_width)
12108 } else {
12109 None
12110 }
12111 })?;
12112 if let Some(height) = known_dimensions.height {
12113 return Some(size(width, height));
12114 }
12115
12116 let style = editor.style.as_ref().unwrap();
12117 let font_id = window.text_system().resolve_font(&style.text.font());
12118 let font_size = style.text.font_size.to_pixels(window.rem_size());
12119 let line_height = style.text.line_height_in_pixels(window.rem_size());
12120 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
12121
12122 let mut snapshot = editor.snapshot(window, cx);
12123 let gutter_dimensions = snapshot.gutter_dimensions(font_id, font_size, style, window, cx);
12124
12125 editor.gutter_dimensions = gutter_dimensions;
12126 let text_width = width - gutter_dimensions.width;
12127 let overscroll = size(em_width, px(0.));
12128
12129 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
12130 let wrap_width = calculate_wrap_width(editor.soft_wrap_mode(cx), editor_width, em_width);
12131 if wrap_width.is_some() && editor.set_wrap_width(wrap_width, cx) {
12132 snapshot = editor.snapshot(window, cx);
12133 }
12134
12135 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
12136
12137 let min_height = line_height * min_lines as f32;
12138 let content_height = scroll_height.max(min_height);
12139
12140 let final_height = if let Some(max_lines) = max_lines {
12141 let max_height = line_height * max_lines as f32;
12142 content_height.min(max_height)
12143 } else {
12144 content_height
12145 };
12146
12147 Some(size(width, final_height))
12148}
12149
12150#[cfg(test)]
12151mod tests {
12152 use super::*;
12153 use crate::{
12154 Editor, MultiBuffer, SelectionEffects,
12155 display_map::{BlockPlacement, BlockProperties},
12156 editor_tests::{init_test, update_test_language_settings},
12157 };
12158 use gpui::{TestAppContext, VisualTestContext};
12159 use language::{Buffer, language_settings, tree_sitter_python};
12160 use log::info;
12161 use rand::{RngCore, rngs::StdRng};
12162 use std::num::NonZeroU32;
12163 use util::test::sample_text;
12164
12165 #[gpui::test]
12166 async fn test_soft_wrap_editor_width_auto_height_editor(cx: &mut TestAppContext) {
12167 init_test(cx, |_| {});
12168 // Ensure wrap completes synchronously by giving block_with_timeout enough ticks
12169 cx.dispatcher.scheduler().set_timeout_ticks(1000..=1000);
12170
12171 let window = cx.add_window(|window, cx| {
12172 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
12173 let mut editor = Editor::new(
12174 EditorMode::AutoHeight {
12175 min_lines: 1,
12176 max_lines: None,
12177 },
12178 buffer,
12179 None,
12180 window,
12181 cx,
12182 );
12183 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12184 editor
12185 });
12186 let cx = &mut VisualTestContext::from_window(*window, cx);
12187 let editor = window.root(cx).unwrap();
12188 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12189
12190 for x in 1..=100 {
12191 let (_, state) = cx.draw(
12192 Default::default(),
12193 size(px(200. + 0.13 * x as f32), px(500.)),
12194 |_, _| EditorElement::new(&editor, style.clone()),
12195 );
12196
12197 assert!(
12198 state.position_map.scroll_max.x == 0.,
12199 "Soft wrapped editor should have no horizontal scrolling!"
12200 );
12201 }
12202 }
12203
12204 #[gpui::test]
12205 async fn test_soft_wrap_editor_width_full_editor(cx: &mut TestAppContext) {
12206 init_test(cx, |_| {});
12207 // Ensure wrap completes synchronously by giving block_with_timeout enough ticks
12208 cx.dispatcher.scheduler().set_timeout_ticks(1000..=1000);
12209
12210 let window = cx.add_window(|window, cx| {
12211 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
12212 let mut editor = Editor::new(EditorMode::full(), buffer, None, window, cx);
12213 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12214 editor
12215 });
12216 let cx = &mut VisualTestContext::from_window(*window, cx);
12217 let editor = window.root(cx).unwrap();
12218 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12219
12220 for x in 1..=100 {
12221 let (_, state) = cx.draw(
12222 Default::default(),
12223 size(px(200. + 0.13 * x as f32), px(500.)),
12224 |_, _| EditorElement::new(&editor, style.clone()),
12225 );
12226
12227 assert!(
12228 state.position_map.scroll_max.x == 0.,
12229 "Soft wrapped editor should have no horizontal scrolling!"
12230 );
12231 }
12232 }
12233
12234 #[gpui::test]
12235 fn test_layout_line_numbers(cx: &mut TestAppContext) {
12236 init_test(cx, |_| {});
12237 let window = cx.add_window(|window, cx| {
12238 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
12239 Editor::new(EditorMode::full(), buffer, None, window, cx)
12240 });
12241
12242 let editor = window.root(cx).unwrap();
12243 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12244 let line_height = window
12245 .update(cx, |_, window, _| {
12246 style.text.line_height_in_pixels(window.rem_size())
12247 })
12248 .unwrap();
12249 let element = EditorElement::new(&editor, style);
12250 let snapshot = window
12251 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
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(0)),
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 // works if cursor is before screen
12303 let relative_rows = window
12304 .update(cx, |editor, window, cx| {
12305 let snapshot = editor.snapshot(window, cx);
12306 snapshot.calculate_relative_line_numbers(
12307 &(DisplayRow(3)..DisplayRow(6)),
12308 DisplayRow(1),
12309 false,
12310 )
12311 })
12312 .unwrap();
12313 assert_eq!(relative_rows.len(), 3);
12314 assert_eq!(relative_rows[&DisplayRow(3)], 2);
12315 assert_eq!(relative_rows[&DisplayRow(4)], 3);
12316 assert_eq!(relative_rows[&DisplayRow(5)], 4);
12317
12318 // works if cursor is after screen
12319 let relative_rows = window
12320 .update(cx, |editor, window, cx| {
12321 let snapshot = editor.snapshot(window, cx);
12322 snapshot.calculate_relative_line_numbers(
12323 &(DisplayRow(0)..DisplayRow(3)),
12324 DisplayRow(6),
12325 false,
12326 )
12327 })
12328 .unwrap();
12329 assert_eq!(relative_rows.len(), 3);
12330 assert_eq!(relative_rows[&DisplayRow(0)], 5);
12331 assert_eq!(relative_rows[&DisplayRow(1)], 4);
12332 assert_eq!(relative_rows[&DisplayRow(2)], 3);
12333
12334 const DELETED_LINE: u32 = 3;
12335 let layouts = cx
12336 .update_window(*window, |_, window, cx| {
12337 element.layout_line_numbers(
12338 None,
12339 GutterDimensions {
12340 left_padding: Pixels::ZERO,
12341 right_padding: Pixels::ZERO,
12342 width: px(30.0),
12343 margin: Pixels::ZERO,
12344 git_blame_entries_width: None,
12345 },
12346 line_height,
12347 gpui::Point::default(),
12348 DisplayRow(0)..DisplayRow(6),
12349 &(0..6)
12350 .map(|row| RowInfo {
12351 buffer_row: Some(row),
12352 diff_status: (row == DELETED_LINE).then(|| {
12353 DiffHunkStatus::deleted(
12354 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
12355 )
12356 }),
12357 ..Default::default()
12358 })
12359 .collect::<Vec<_>>(),
12360 &BTreeMap::default(),
12361 Some(DisplayRow(0)),
12362 &snapshot,
12363 window,
12364 cx,
12365 )
12366 })
12367 .unwrap();
12368 assert_eq!(layouts.len(), 5,);
12369 assert!(
12370 layouts.get(&MultiBufferRow(DELETED_LINE)).is_none(),
12371 "Deleted line should not have a line number"
12372 );
12373 }
12374
12375 #[gpui::test]
12376 async fn test_layout_line_numbers_with_folded_lines(cx: &mut TestAppContext) {
12377 init_test(cx, |_| {});
12378
12379 let python_lang = languages::language("python", tree_sitter_python::LANGUAGE.into());
12380
12381 let window = cx.add_window(|window, cx| {
12382 let buffer = cx.new(|cx| {
12383 Buffer::local(
12384 indoc::indoc! {"
12385 fn test() -> int {
12386 return 2;
12387 }
12388
12389 fn another_test() -> int {
12390 # This is a very peculiar method that is hard to grasp.
12391 return 4;
12392 }
12393 "},
12394 cx,
12395 )
12396 .with_language(python_lang, cx)
12397 });
12398
12399 let buffer = MultiBuffer::build_from_buffer(buffer, cx);
12400 Editor::new(EditorMode::full(), buffer, None, window, cx)
12401 });
12402
12403 let editor = window.root(cx).unwrap();
12404 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12405 let line_height = window
12406 .update(cx, |_, window, _| {
12407 style.text.line_height_in_pixels(window.rem_size())
12408 })
12409 .unwrap();
12410 let element = EditorElement::new(&editor, style);
12411 let snapshot = window
12412 .update(cx, |editor, window, cx| {
12413 editor.fold_at(MultiBufferRow(0), window, cx);
12414 editor.snapshot(window, cx)
12415 })
12416 .unwrap();
12417
12418 let layouts = cx
12419 .update_window(*window, |_, window, cx| {
12420 element.layout_line_numbers(
12421 None,
12422 GutterDimensions {
12423 left_padding: Pixels::ZERO,
12424 right_padding: Pixels::ZERO,
12425 width: px(30.0),
12426 margin: Pixels::ZERO,
12427 git_blame_entries_width: None,
12428 },
12429 line_height,
12430 gpui::Point::default(),
12431 DisplayRow(0)..DisplayRow(6),
12432 &(0..6)
12433 .map(|row| RowInfo {
12434 buffer_row: Some(row),
12435 ..Default::default()
12436 })
12437 .collect::<Vec<_>>(),
12438 &BTreeMap::default(),
12439 Some(DisplayRow(3)),
12440 &snapshot,
12441 window,
12442 cx,
12443 )
12444 })
12445 .unwrap();
12446 assert_eq!(layouts.len(), 6);
12447
12448 let relative_rows = window
12449 .update(cx, |editor, window, cx| {
12450 let snapshot = editor.snapshot(window, cx);
12451 snapshot.calculate_relative_line_numbers(
12452 &(DisplayRow(0)..DisplayRow(6)),
12453 DisplayRow(3),
12454 false,
12455 )
12456 })
12457 .unwrap();
12458 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12459 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12460 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12461 // current line has no relative number
12462 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12463 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12464 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12465 }
12466
12467 #[gpui::test]
12468 fn test_layout_line_numbers_wrapping(cx: &mut TestAppContext) {
12469 init_test(cx, |_| {});
12470 let window = cx.add_window(|window, cx| {
12471 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
12472 Editor::new(EditorMode::full(), buffer, None, window, cx)
12473 });
12474
12475 update_test_language_settings(cx, |s| {
12476 s.defaults.preferred_line_length = Some(5_u32);
12477 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
12478 });
12479
12480 let editor = window.root(cx).unwrap();
12481 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12482 let line_height = window
12483 .update(cx, |_, window, _| {
12484 style.text.line_height_in_pixels(window.rem_size())
12485 })
12486 .unwrap();
12487 let element = EditorElement::new(&editor, style);
12488 let snapshot = window
12489 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
12490 .unwrap();
12491
12492 let layouts = cx
12493 .update_window(*window, |_, window, cx| {
12494 element.layout_line_numbers(
12495 None,
12496 GutterDimensions {
12497 left_padding: Pixels::ZERO,
12498 right_padding: Pixels::ZERO,
12499 width: px(30.0),
12500 margin: Pixels::ZERO,
12501 git_blame_entries_width: None,
12502 },
12503 line_height,
12504 gpui::Point::default(),
12505 DisplayRow(0)..DisplayRow(6),
12506 &(0..6)
12507 .map(|row| RowInfo {
12508 buffer_row: Some(row),
12509 ..Default::default()
12510 })
12511 .collect::<Vec<_>>(),
12512 &BTreeMap::default(),
12513 Some(DisplayRow(0)),
12514 &snapshot,
12515 window,
12516 cx,
12517 )
12518 })
12519 .unwrap();
12520 assert_eq!(layouts.len(), 3);
12521
12522 let relative_rows = window
12523 .update(cx, |editor, window, cx| {
12524 let snapshot = editor.snapshot(window, cx);
12525 snapshot.calculate_relative_line_numbers(
12526 &(DisplayRow(0)..DisplayRow(6)),
12527 DisplayRow(3),
12528 true,
12529 )
12530 })
12531 .unwrap();
12532
12533 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12534 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12535 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12536 // current line has no relative number
12537 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12538 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12539 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12540
12541 let layouts = cx
12542 .update_window(*window, |_, window, cx| {
12543 element.layout_line_numbers(
12544 None,
12545 GutterDimensions {
12546 left_padding: Pixels::ZERO,
12547 right_padding: Pixels::ZERO,
12548 width: px(30.0),
12549 margin: Pixels::ZERO,
12550 git_blame_entries_width: None,
12551 },
12552 line_height,
12553 gpui::Point::default(),
12554 DisplayRow(0)..DisplayRow(6),
12555 &(0..6)
12556 .map(|row| RowInfo {
12557 buffer_row: Some(row),
12558 diff_status: Some(DiffHunkStatus::deleted(
12559 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
12560 )),
12561 ..Default::default()
12562 })
12563 .collect::<Vec<_>>(),
12564 &BTreeMap::from_iter([(DisplayRow(0), LineHighlightSpec::default())]),
12565 Some(DisplayRow(0)),
12566 &snapshot,
12567 window,
12568 cx,
12569 )
12570 })
12571 .unwrap();
12572 assert!(
12573 layouts.is_empty(),
12574 "Deleted lines should have no line number"
12575 );
12576
12577 let relative_rows = window
12578 .update(cx, |editor, window, cx| {
12579 let snapshot = editor.snapshot(window, cx);
12580 snapshot.calculate_relative_line_numbers(
12581 &(DisplayRow(0)..DisplayRow(6)),
12582 DisplayRow(3),
12583 true,
12584 )
12585 })
12586 .unwrap();
12587
12588 // Deleted lines should still have relative numbers
12589 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12590 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12591 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12592 // current line, even if deleted, has no relative number
12593 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12594 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12595 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12596 }
12597
12598 #[gpui::test]
12599 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
12600 init_test(cx, |_| {});
12601
12602 let window = cx.add_window(|window, cx| {
12603 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
12604 Editor::new(EditorMode::full(), buffer, None, window, cx)
12605 });
12606 let cx = &mut VisualTestContext::from_window(*window, cx);
12607 let editor = window.root(cx).unwrap();
12608 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12609
12610 window
12611 .update(cx, |editor, window, cx| {
12612 editor.cursor_offset_on_selection = true;
12613 editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
12614 s.select_ranges([
12615 Point::new(0, 0)..Point::new(1, 0),
12616 Point::new(3, 2)..Point::new(3, 3),
12617 Point::new(5, 6)..Point::new(6, 0),
12618 ]);
12619 });
12620 })
12621 .unwrap();
12622
12623 let (_, state) = cx.draw(
12624 point(px(500.), px(500.)),
12625 size(px(500.), px(500.)),
12626 |_, _| EditorElement::new(&editor, style),
12627 );
12628
12629 assert_eq!(state.selections.len(), 1);
12630 let local_selections = &state.selections[0].1;
12631 assert_eq!(local_selections.len(), 3);
12632 // moves cursor back one line
12633 assert_eq!(
12634 local_selections[0].head,
12635 DisplayPoint::new(DisplayRow(0), 6)
12636 );
12637 assert_eq!(
12638 local_selections[0].range,
12639 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
12640 );
12641
12642 // moves cursor back one column
12643 assert_eq!(
12644 local_selections[1].range,
12645 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
12646 );
12647 assert_eq!(
12648 local_selections[1].head,
12649 DisplayPoint::new(DisplayRow(3), 2)
12650 );
12651
12652 // leaves cursor on the max point
12653 assert_eq!(
12654 local_selections[2].range,
12655 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
12656 );
12657 assert_eq!(
12658 local_selections[2].head,
12659 DisplayPoint::new(DisplayRow(6), 0)
12660 );
12661
12662 // active lines does not include 1 (even though the range of the selection does)
12663 assert_eq!(
12664 state.active_rows.keys().cloned().collect::<Vec<_>>(),
12665 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
12666 );
12667 }
12668
12669 #[gpui::test]
12670 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
12671 init_test(cx, |_| {});
12672
12673 let window = cx.add_window(|window, cx| {
12674 let buffer = MultiBuffer::build_simple("", cx);
12675 Editor::new(EditorMode::full(), buffer, None, window, cx)
12676 });
12677 let cx = &mut VisualTestContext::from_window(*window, cx);
12678 let editor = window.root(cx).unwrap();
12679 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12680 window
12681 .update(cx, |editor, window, cx| {
12682 editor.set_placeholder_text("hello", window, cx);
12683 editor.insert_blocks(
12684 [BlockProperties {
12685 style: BlockStyle::Fixed,
12686 placement: BlockPlacement::Above(Anchor::min()),
12687 height: Some(3),
12688 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
12689 priority: 0,
12690 }],
12691 None,
12692 cx,
12693 );
12694
12695 // Blur the editor so that it displays placeholder text.
12696 window.blur();
12697 })
12698 .unwrap();
12699
12700 let (_, state) = cx.draw(
12701 point(px(500.), px(500.)),
12702 size(px(500.), px(500.)),
12703 |_, _| EditorElement::new(&editor, style),
12704 );
12705 assert_eq!(state.position_map.line_layouts.len(), 4);
12706 assert_eq!(state.line_numbers.len(), 1);
12707 assert_eq!(
12708 state
12709 .line_numbers
12710 .get(&MultiBufferRow(0))
12711 .map(|line_number| line_number
12712 .segments
12713 .first()
12714 .unwrap()
12715 .shaped_line
12716 .text
12717 .as_ref()),
12718 Some("1")
12719 );
12720 }
12721
12722 #[gpui::test]
12723 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
12724 const TAB_SIZE: u32 = 4;
12725
12726 let input_text = "\t \t|\t| a b";
12727 let expected_invisibles = vec![
12728 Invisible::Tab {
12729 line_start_offset: 0,
12730 line_end_offset: TAB_SIZE as usize,
12731 },
12732 Invisible::Whitespace {
12733 line_offset: TAB_SIZE as usize,
12734 },
12735 Invisible::Tab {
12736 line_start_offset: TAB_SIZE as usize + 1,
12737 line_end_offset: TAB_SIZE as usize * 2,
12738 },
12739 Invisible::Tab {
12740 line_start_offset: TAB_SIZE as usize * 2 + 1,
12741 line_end_offset: TAB_SIZE as usize * 3,
12742 },
12743 Invisible::Whitespace {
12744 line_offset: TAB_SIZE as usize * 3 + 1,
12745 },
12746 Invisible::Whitespace {
12747 line_offset: TAB_SIZE as usize * 3 + 3,
12748 },
12749 ];
12750 assert_eq!(
12751 expected_invisibles.len(),
12752 input_text
12753 .chars()
12754 .filter(|initial_char| initial_char.is_whitespace())
12755 .count(),
12756 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
12757 );
12758
12759 for show_line_numbers in [true, false] {
12760 init_test(cx, |s| {
12761 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12762 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
12763 });
12764
12765 let actual_invisibles = collect_invisibles_from_new_editor(
12766 cx,
12767 EditorMode::full(),
12768 input_text,
12769 px(500.0),
12770 show_line_numbers,
12771 );
12772
12773 assert_eq!(expected_invisibles, actual_invisibles);
12774 }
12775 }
12776
12777 #[gpui::test]
12778 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
12779 init_test(cx, |s| {
12780 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12781 s.defaults.tab_size = NonZeroU32::new(4);
12782 });
12783
12784 for editor_mode_without_invisibles in [
12785 EditorMode::SingleLine,
12786 EditorMode::AutoHeight {
12787 min_lines: 1,
12788 max_lines: Some(100),
12789 },
12790 ] {
12791 for show_line_numbers in [true, false] {
12792 let invisibles = collect_invisibles_from_new_editor(
12793 cx,
12794 editor_mode_without_invisibles.clone(),
12795 "\t\t\t| | a b",
12796 px(500.0),
12797 show_line_numbers,
12798 );
12799 assert!(
12800 invisibles.is_empty(),
12801 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
12802 );
12803 }
12804 }
12805 }
12806
12807 #[gpui::test]
12808 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
12809 let tab_size = 4;
12810 let input_text = "a\tbcd ".repeat(9);
12811 let repeated_invisibles = [
12812 Invisible::Tab {
12813 line_start_offset: 1,
12814 line_end_offset: tab_size as usize,
12815 },
12816 Invisible::Whitespace {
12817 line_offset: tab_size as usize + 3,
12818 },
12819 Invisible::Whitespace {
12820 line_offset: tab_size as usize + 4,
12821 },
12822 Invisible::Whitespace {
12823 line_offset: tab_size as usize + 5,
12824 },
12825 Invisible::Whitespace {
12826 line_offset: tab_size as usize + 6,
12827 },
12828 Invisible::Whitespace {
12829 line_offset: tab_size as usize + 7,
12830 },
12831 ];
12832 let expected_invisibles = std::iter::once(repeated_invisibles)
12833 .cycle()
12834 .take(9)
12835 .flatten()
12836 .collect::<Vec<_>>();
12837 assert_eq!(
12838 expected_invisibles.len(),
12839 input_text
12840 .chars()
12841 .filter(|initial_char| initial_char.is_whitespace())
12842 .count(),
12843 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
12844 );
12845 info!("Expected invisibles: {expected_invisibles:?}");
12846
12847 init_test(cx, |_| {});
12848
12849 // Put the same string with repeating whitespace pattern into editors of various size,
12850 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
12851 let resize_step = 10.0;
12852 let mut editor_width = 200.0;
12853 while editor_width <= 1000.0 {
12854 for show_line_numbers in [true, false] {
12855 update_test_language_settings(cx, |s| {
12856 s.defaults.tab_size = NonZeroU32::new(tab_size);
12857 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12858 s.defaults.preferred_line_length = Some(editor_width as u32);
12859 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
12860 });
12861
12862 let actual_invisibles = collect_invisibles_from_new_editor(
12863 cx,
12864 EditorMode::full(),
12865 &input_text,
12866 px(editor_width),
12867 show_line_numbers,
12868 );
12869
12870 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
12871 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
12872 let mut i = 0;
12873 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
12874 i = actual_index;
12875 match expected_invisibles.get(i) {
12876 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
12877 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
12878 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
12879 _ => {
12880 panic!(
12881 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
12882 )
12883 }
12884 },
12885 None => {
12886 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
12887 }
12888 }
12889 }
12890 let missing_expected_invisibles = &expected_invisibles[i + 1..];
12891 assert!(
12892 missing_expected_invisibles.is_empty(),
12893 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
12894 );
12895
12896 editor_width += resize_step;
12897 }
12898 }
12899 }
12900
12901 fn collect_invisibles_from_new_editor(
12902 cx: &mut TestAppContext,
12903 editor_mode: EditorMode,
12904 input_text: &str,
12905 editor_width: Pixels,
12906 show_line_numbers: bool,
12907 ) -> Vec<Invisible> {
12908 info!(
12909 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
12910 f32::from(editor_width)
12911 );
12912 let window = cx.add_window(|window, cx| {
12913 let buffer = MultiBuffer::build_simple(input_text, cx);
12914 Editor::new(editor_mode, buffer, None, window, cx)
12915 });
12916 let cx = &mut VisualTestContext::from_window(*window, cx);
12917 let editor = window.root(cx).unwrap();
12918
12919 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12920 window
12921 .update(cx, |editor, _, cx| {
12922 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12923 editor.set_wrap_width(Some(editor_width), cx);
12924 editor.set_show_line_numbers(show_line_numbers, cx);
12925 })
12926 .unwrap();
12927 let (_, state) = cx.draw(
12928 point(px(500.), px(500.)),
12929 size(px(500.), px(500.)),
12930 |_, _| EditorElement::new(&editor, style),
12931 );
12932 state
12933 .position_map
12934 .line_layouts
12935 .iter()
12936 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
12937 .cloned()
12938 .collect()
12939 }
12940
12941 #[gpui::test]
12942 fn test_merge_overlapping_ranges() {
12943 let base_bg = Hsla::white();
12944 let color1 = Hsla {
12945 h: 0.0,
12946 s: 0.5,
12947 l: 0.5,
12948 a: 0.5,
12949 };
12950 let color2 = Hsla {
12951 h: 120.0,
12952 s: 0.5,
12953 l: 0.5,
12954 a: 0.5,
12955 };
12956
12957 let display_point = |col| DisplayPoint::new(DisplayRow(0), col);
12958 let cols = |v: &Vec<(Range<DisplayPoint>, Hsla)>| -> Vec<(u32, u32)> {
12959 v.iter()
12960 .map(|(r, _)| (r.start.column(), r.end.column()))
12961 .collect()
12962 };
12963
12964 // Test overlapping ranges blend colors
12965 let overlapping = vec![
12966 (display_point(5)..display_point(15), color1),
12967 (display_point(10)..display_point(20), color2),
12968 ];
12969 let result = EditorElement::merge_overlapping_ranges(overlapping, base_bg);
12970 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
12971
12972 // Test middle segment should have blended color
12973 let blended = Hsla::blend(Hsla::blend(base_bg, color1), color2);
12974 assert_eq!(result[1].1, blended);
12975
12976 // Test adjacent same-color ranges merge
12977 let adjacent_same = vec![
12978 (display_point(5)..display_point(10), color1),
12979 (display_point(10)..display_point(15), color1),
12980 ];
12981 let result = EditorElement::merge_overlapping_ranges(adjacent_same, base_bg);
12982 assert_eq!(cols(&result), vec![(5, 15)]);
12983
12984 // Test contained range splits
12985 let contained = vec![
12986 (display_point(5)..display_point(20), color1),
12987 (display_point(10)..display_point(15), color2),
12988 ];
12989 let result = EditorElement::merge_overlapping_ranges(contained, base_bg);
12990 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
12991
12992 // Test multiple overlaps split at every boundary
12993 let color3 = Hsla {
12994 h: 240.0,
12995 s: 0.5,
12996 l: 0.5,
12997 a: 0.5,
12998 };
12999 let complex = vec![
13000 (display_point(5)..display_point(12), color1),
13001 (display_point(8)..display_point(16), color2),
13002 (display_point(10)..display_point(14), color3),
13003 ];
13004 let result = EditorElement::merge_overlapping_ranges(complex, base_bg);
13005 assert_eq!(
13006 cols(&result),
13007 vec![(5, 8), (8, 10), (10, 12), (12, 14), (14, 16)]
13008 );
13009 }
13010
13011 #[gpui::test]
13012 fn test_bg_segments_per_row() {
13013 let base_bg = Hsla::white();
13014
13015 // Case A: selection spans three display rows: row 1 [5, end), full row 2, row 3 [0, 7)
13016 {
13017 let selection_color = Hsla {
13018 h: 200.0,
13019 s: 0.5,
13020 l: 0.5,
13021 a: 0.5,
13022 };
13023 let player_color = PlayerColor {
13024 cursor: selection_color,
13025 background: selection_color,
13026 selection: selection_color,
13027 };
13028
13029 let spanning_selection = SelectionLayout {
13030 head: DisplayPoint::new(DisplayRow(3), 7),
13031 cursor_shape: CursorShape::Bar,
13032 is_newest: true,
13033 is_local: true,
13034 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 7),
13035 active_rows: DisplayRow(1)..DisplayRow(4),
13036 user_name: None,
13037 };
13038
13039 let selections = vec![(player_color, vec![spanning_selection])];
13040 let result = EditorElement::bg_segments_per_row(
13041 DisplayRow(0)..DisplayRow(5),
13042 &selections,
13043 &[],
13044 base_bg,
13045 );
13046
13047 assert_eq!(result.len(), 5);
13048 assert!(result[0].is_empty());
13049 assert_eq!(result[1].len(), 1);
13050 assert_eq!(result[2].len(), 1);
13051 assert_eq!(result[3].len(), 1);
13052 assert!(result[4].is_empty());
13053
13054 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
13055 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
13056 assert_eq!(result[1][0].0.end.column(), u32::MAX);
13057 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
13058 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
13059 assert_eq!(result[2][0].0.end.column(), u32::MAX);
13060 assert_eq!(result[3][0].0.start, DisplayPoint::new(DisplayRow(3), 0));
13061 assert_eq!(result[3][0].0.end, DisplayPoint::new(DisplayRow(3), 7));
13062 }
13063
13064 // Case B: selection ends exactly at the start of row 3, excluding row 3
13065 {
13066 let selection_color = Hsla {
13067 h: 120.0,
13068 s: 0.5,
13069 l: 0.5,
13070 a: 0.5,
13071 };
13072 let player_color = PlayerColor {
13073 cursor: selection_color,
13074 background: selection_color,
13075 selection: selection_color,
13076 };
13077
13078 let selection = SelectionLayout {
13079 head: DisplayPoint::new(DisplayRow(2), 0),
13080 cursor_shape: CursorShape::Bar,
13081 is_newest: true,
13082 is_local: true,
13083 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 0),
13084 active_rows: DisplayRow(1)..DisplayRow(3),
13085 user_name: None,
13086 };
13087
13088 let selections = vec![(player_color, vec![selection])];
13089 let result = EditorElement::bg_segments_per_row(
13090 DisplayRow(0)..DisplayRow(4),
13091 &selections,
13092 &[],
13093 base_bg,
13094 );
13095
13096 assert_eq!(result.len(), 4);
13097 assert!(result[0].is_empty());
13098 assert_eq!(result[1].len(), 1);
13099 assert_eq!(result[2].len(), 1);
13100 assert!(result[3].is_empty());
13101
13102 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
13103 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
13104 assert_eq!(result[1][0].0.end.column(), u32::MAX);
13105 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
13106 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
13107 assert_eq!(result[2][0].0.end.column(), u32::MAX);
13108 }
13109 }
13110
13111 #[cfg(test)]
13112 fn generate_test_run(len: usize, color: Hsla) -> TextRun {
13113 TextRun {
13114 len,
13115 color,
13116 ..Default::default()
13117 }
13118 }
13119
13120 #[gpui::test]
13121 fn test_split_runs_by_bg_segments(cx: &mut gpui::TestAppContext) {
13122 init_test(cx, |_| {});
13123
13124 let dx = |start: u32, end: u32| {
13125 DisplayPoint::new(DisplayRow(0), start)..DisplayPoint::new(DisplayRow(0), end)
13126 };
13127
13128 let text_color = Hsla {
13129 h: 210.0,
13130 s: 0.1,
13131 l: 0.4,
13132 a: 1.0,
13133 };
13134 let bg_1 = Hsla {
13135 h: 30.0,
13136 s: 0.6,
13137 l: 0.8,
13138 a: 1.0,
13139 };
13140 let bg_2 = Hsla {
13141 h: 200.0,
13142 s: 0.6,
13143 l: 0.2,
13144 a: 1.0,
13145 };
13146 let min_contrast = 45.0;
13147 let adjusted_bg1 = ensure_minimum_contrast(text_color, bg_1, min_contrast);
13148 let adjusted_bg2 = ensure_minimum_contrast(text_color, bg_2, min_contrast);
13149
13150 // Case A: single run; disjoint segments inside the run
13151 {
13152 let runs = vec![generate_test_run(20, text_color)];
13153 let segs = vec![(dx(5, 10), bg_1), (dx(12, 16), bg_2)];
13154 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13155 // Expected slices: [0,5) [5,10) [10,12) [12,16) [16,20)
13156 assert_eq!(
13157 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13158 vec![5, 5, 2, 4, 4]
13159 );
13160 assert_eq!(out[0].color, text_color);
13161 assert_eq!(out[1].color, adjusted_bg1);
13162 assert_eq!(out[2].color, text_color);
13163 assert_eq!(out[3].color, adjusted_bg2);
13164 assert_eq!(out[4].color, text_color);
13165 }
13166
13167 // Case B: multiple runs; segment extends to end of line (u32::MAX)
13168 {
13169 let runs = vec![
13170 generate_test_run(8, text_color),
13171 generate_test_run(7, text_color),
13172 ];
13173 let segs = vec![(dx(6, u32::MAX), bg_1)];
13174 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13175 // Expected slices across runs: [0,6) [6,8) | [0,7)
13176 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![6, 2, 7]);
13177 assert_eq!(out[0].color, text_color);
13178 assert_eq!(out[1].color, adjusted_bg1);
13179 assert_eq!(out[2].color, adjusted_bg1);
13180 }
13181
13182 // Case C: multi-byte characters
13183 {
13184 // for text: "Hello π δΈη!"
13185 let runs = vec![
13186 generate_test_run(5, text_color), // "Hello"
13187 generate_test_run(6, text_color), // " π "
13188 generate_test_run(6, text_color), // "δΈη"
13189 generate_test_run(1, text_color), // "!"
13190 ];
13191 // selecting "π δΈ"
13192 let segs = vec![(dx(6, 14), bg_1)];
13193 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13194 // "Hello" | " " | "π " | "δΈ" | "η" | "!"
13195 assert_eq!(
13196 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13197 vec![5, 1, 5, 3, 3, 1]
13198 );
13199 assert_eq!(out[0].color, text_color); // "Hello"
13200 assert_eq!(out[2].color, adjusted_bg1); // "π "
13201 assert_eq!(out[3].color, adjusted_bg1); // "δΈ"
13202 assert_eq!(out[4].color, text_color); // "η"
13203 assert_eq!(out[5].color, text_color); // "!"
13204 }
13205
13206 // Case D: split multiple consecutive text runs with segments
13207 {
13208 let segs = vec![
13209 (dx(2, 4), bg_1), // selecting "cd"
13210 (dx(4, 8), bg_2), // selecting "efgh"
13211 (dx(9, 11), bg_1), // selecting "jk"
13212 (dx(12, 16), bg_2), // selecting "mnop"
13213 (dx(18, 19), bg_1), // selecting "s"
13214 ];
13215
13216 // for text: "abcdef"
13217 let runs = vec![
13218 generate_test_run(2, text_color), // ab
13219 generate_test_run(4, text_color), // cdef
13220 ];
13221 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13222 // new splits "ab", "cd", "ef"
13223 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![2, 2, 2]);
13224 assert_eq!(out[0].color, text_color);
13225 assert_eq!(out[1].color, adjusted_bg1);
13226 assert_eq!(out[2].color, adjusted_bg2);
13227
13228 // for text: "ghijklmn"
13229 let runs = vec![
13230 generate_test_run(3, text_color), // ghi
13231 generate_test_run(2, text_color), // jk
13232 generate_test_run(3, text_color), // lmn
13233 ];
13234 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 6); // 2 + 4 from first run
13235 // new splits "gh", "i", "jk", "l", "mn"
13236 assert_eq!(
13237 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13238 vec![2, 1, 2, 1, 2]
13239 );
13240 assert_eq!(out[0].color, adjusted_bg2);
13241 assert_eq!(out[1].color, text_color);
13242 assert_eq!(out[2].color, adjusted_bg1);
13243 assert_eq!(out[3].color, text_color);
13244 assert_eq!(out[4].color, adjusted_bg2);
13245
13246 // for text: "opqrs"
13247 let runs = vec![
13248 generate_test_run(1, text_color), // o
13249 generate_test_run(4, text_color), // pqrs
13250 ];
13251 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 14); // 6 + 3 + 2 + 3 from first two runs
13252 // new splits "o", "p", "qr", "s"
13253 assert_eq!(
13254 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13255 vec![1, 1, 2, 1]
13256 );
13257 assert_eq!(out[0].color, adjusted_bg2);
13258 assert_eq!(out[1].color, adjusted_bg2);
13259 assert_eq!(out[2].color, text_color);
13260 assert_eq!(out[3].color, adjusted_bg1);
13261 }
13262 }
13263
13264 #[test]
13265 fn test_checkerboard_size() {
13266 // line height is smaller than target height, so we just return half the line height
13267 assert_eq!(EditorElement::checkerboard_size(10.0, 20.0), 5.0);
13268
13269 // line height is exactly half the target height, perfect match
13270 assert_eq!(EditorElement::checkerboard_size(20.0, 10.0), 10.0);
13271
13272 // line height is close to half the target height
13273 assert_eq!(EditorElement::checkerboard_size(20.0, 9.0), 10.0);
13274
13275 // line height is close to 1/4 the target height
13276 assert_eq!(EditorElement::checkerboard_size(20.0, 4.8), 5.0);
13277 }
13278
13279 #[gpui::test(iterations = 100)]
13280 fn test_random_checkerboard_size(mut rng: StdRng) {
13281 let line_height = rng.next_u32() as f32;
13282 let target_height = rng.next_u32() as f32;
13283
13284 let result = EditorElement::checkerboard_size(line_height, target_height);
13285
13286 let k = line_height / result;
13287 assert!(k - k.round() < 0.0000001); // approximately integer
13288 assert!((k.round() as u32).is_multiple_of(2));
13289 }
13290
13291 #[test]
13292 fn test_calculate_wrap_width() {
13293 let editor_width = px(800.0);
13294 let em_width = px(8.0);
13295
13296 assert_eq!(
13297 calculate_wrap_width(SoftWrap::GitDiff, editor_width, em_width),
13298 None,
13299 );
13300
13301 assert_eq!(
13302 calculate_wrap_width(SoftWrap::None, editor_width, em_width),
13303 Some(px((MAX_LINE_LEN as f32 / 2.0 * 8.0).ceil())),
13304 );
13305
13306 assert_eq!(
13307 calculate_wrap_width(SoftWrap::EditorWidth, editor_width, em_width),
13308 Some(px(800.0)),
13309 );
13310
13311 assert_eq!(
13312 calculate_wrap_width(SoftWrap::Column(72), editor_width, em_width),
13313 Some(px((72.0 * 8.0_f32).ceil())),
13314 );
13315
13316 assert_eq!(
13317 calculate_wrap_width(SoftWrap::Bounded(72), editor_width, em_width),
13318 Some(px((72.0 * 8.0_f32).ceil())),
13319 );
13320 assert_eq!(
13321 calculate_wrap_width(SoftWrap::Bounded(200), px(400.0), em_width),
13322 Some(px(400.0)),
13323 );
13324 }
13325}