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