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