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