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 file_status = multi_buffer
3919 .all_diff_hunks_expanded()
3920 .then(|| editor.status_for_buffer_id(for_excerpt.buffer_id, cx))
3921 .flatten();
3922 let indicator = multi_buffer
3923 .buffer(for_excerpt.buffer_id)
3924 .and_then(|buffer| {
3925 let buffer = buffer.read(cx);
3926 let indicator_color = match (buffer.has_conflict(), buffer.is_dirty()) {
3927 (true, _) => Some(Color::Warning),
3928 (_, true) => Some(Color::Accent),
3929 (false, false) => None,
3930 };
3931 indicator_color.map(|indicator_color| Indicator::dot().color(indicator_color))
3932 });
3933
3934 let include_root = editor
3935 .project
3936 .as_ref()
3937 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
3938 .unwrap_or_default();
3939 let file = for_excerpt.buffer.file();
3940 let can_open_excerpts = Editor::can_open_excerpts_in_file(file);
3941 let path_style = file.map(|file| file.path_style(cx));
3942 let relative_path = for_excerpt.buffer.resolve_file_path(include_root, cx);
3943 let (parent_path, filename) = if let Some(path) = &relative_path {
3944 if let Some(path_style) = path_style {
3945 let (dir, file_name) = path_style.split(path);
3946 (dir.map(|dir| dir.to_owned()), Some(file_name.to_owned()))
3947 } else {
3948 (None, Some(path.clone()))
3949 }
3950 } else {
3951 (None, None)
3952 };
3953 let focus_handle = editor.focus_handle(cx);
3954 let colors = cx.theme().colors();
3955
3956 let header = div()
3957 .p_1()
3958 .w_full()
3959 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
3960 .child(
3961 h_flex()
3962 .size_full()
3963 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
3964 .pl_1()
3965 .pr_2()
3966 .rounded_sm()
3967 .gap_1p5()
3968 .when(is_sticky, |el| el.shadow_md())
3969 .border_1()
3970 .map(|div| {
3971 let border_color = if is_selected
3972 && is_folded
3973 && focus_handle.contains_focused(window, cx)
3974 {
3975 colors.border_focused
3976 } else {
3977 colors.border
3978 };
3979 div.border_color(border_color)
3980 })
3981 .bg(colors.editor_subheader_background)
3982 .hover(|style| style.bg(colors.element_hover))
3983 .map(|header| {
3984 let editor = self.editor.clone();
3985 let buffer_id = for_excerpt.buffer_id;
3986 let toggle_chevron_icon =
3987 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
3988 let button_size = rems_from_px(28.);
3989
3990 header.child(
3991 div()
3992 .hover(|style| style.bg(colors.element_selected))
3993 .rounded_xs()
3994 .child(
3995 ButtonLike::new("toggle-buffer-fold")
3996 .style(ButtonStyle::Transparent)
3997 .height(button_size.into())
3998 .width(button_size)
3999 .children(toggle_chevron_icon)
4000 .tooltip({
4001 let focus_handle = focus_handle.clone();
4002 let is_folded_for_tooltip = is_folded;
4003 move |_window, cx| {
4004 Tooltip::with_meta_in(
4005 if is_folded_for_tooltip {
4006 "Unfold Excerpt"
4007 } else {
4008 "Fold Excerpt"
4009 },
4010 Some(&ToggleFold),
4011 format!(
4012 "{} to toggle all",
4013 text_for_keystroke(
4014 &Modifiers::alt(),
4015 "click",
4016 cx
4017 )
4018 ),
4019 &focus_handle,
4020 cx,
4021 )
4022 }
4023 })
4024 .on_click(move |event, window, cx| {
4025 if event.modifiers().alt {
4026 // Alt+click toggles all buffers
4027 editor.update(cx, |editor, cx| {
4028 editor.toggle_fold_all(
4029 &ToggleFoldAll,
4030 window,
4031 cx,
4032 );
4033 });
4034 } else {
4035 // Regular click toggles single buffer
4036 if is_folded {
4037 editor.update(cx, |editor, cx| {
4038 editor.unfold_buffer(buffer_id, cx);
4039 });
4040 } else {
4041 editor.update(cx, |editor, cx| {
4042 editor.fold_buffer(buffer_id, cx);
4043 });
4044 }
4045 }
4046 }),
4047 ),
4048 )
4049 })
4050 .children(
4051 editor
4052 .addons
4053 .values()
4054 .filter_map(|addon| {
4055 addon.render_buffer_header_controls(for_excerpt, window, cx)
4056 })
4057 .take(1),
4058 )
4059 .child(
4060 h_flex()
4061 .size_3()
4062 .justify_center()
4063 .flex_shrink_0()
4064 .children(indicator),
4065 )
4066 .child(
4067 h_flex()
4068 .cursor_pointer()
4069 .id("path_header_block")
4070 .min_w_0()
4071 .size_full()
4072 .justify_between()
4073 .overflow_hidden()
4074 .child(h_flex().min_w_0().flex_1().gap_0p5().map(|path_header| {
4075 let filename = filename
4076 .map(SharedString::from)
4077 .unwrap_or_else(|| "untitled".into());
4078
4079 path_header
4080 .when(ItemSettings::get_global(cx).file_icons, |el| {
4081 let path = path::Path::new(filename.as_str());
4082 let icon =
4083 FileIcons::get_icon(path, cx).unwrap_or_default();
4084
4085 el.child(Icon::from_path(icon).color(Color::Muted))
4086 })
4087 .child(
4088 ButtonLike::new("filename-button")
4089 .child(
4090 Label::new(filename)
4091 .single_line()
4092 .color(file_status_label_color(file_status))
4093 .when(
4094 file_status.is_some_and(|s| s.is_deleted()),
4095 |label| label.strikethrough(),
4096 ),
4097 )
4098 .on_click(window.listener_for(&self.editor, {
4099 let jump_data = jump_data.clone();
4100 move |editor, e: &ClickEvent, window, cx| {
4101 editor.open_excerpts_common(
4102 Some(jump_data.clone()),
4103 e.modifiers().secondary(),
4104 window,
4105 cx,
4106 );
4107 }
4108 })),
4109 )
4110 .when_some(parent_path, |then, path| {
4111 then.child(Label::new(path).truncate().color(
4112 if file_status.is_some_and(FileStatus::is_deleted) {
4113 Color::Custom(colors.text_disabled)
4114 } else {
4115 Color::Custom(colors.text_muted)
4116 },
4117 ))
4118 })
4119 }))
4120 .when(
4121 can_open_excerpts && is_selected && relative_path.is_some(),
4122 |el| {
4123 el.child(
4124 Button::new("open-file-button", "Open File")
4125 .style(ButtonStyle::OutlinedGhost)
4126 .key_binding(KeyBinding::for_action_in(
4127 &OpenExcerpts,
4128 &focus_handle,
4129 cx,
4130 ))
4131 .on_click(window.listener_for(&self.editor, {
4132 let jump_data = jump_data.clone();
4133 move |editor, e: &ClickEvent, window, cx| {
4134 editor.open_excerpts_common(
4135 Some(jump_data.clone()),
4136 e.modifiers().secondary(),
4137 window,
4138 cx,
4139 );
4140 }
4141 })),
4142 )
4143 },
4144 )
4145 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
4146 .on_click(window.listener_for(&self.editor, {
4147 let buffer_id = for_excerpt.buffer_id;
4148 move |editor, e: &ClickEvent, window, cx| {
4149 if e.modifiers().alt {
4150 editor.open_excerpts_common(
4151 Some(jump_data.clone()),
4152 e.modifiers().secondary(),
4153 window,
4154 cx,
4155 );
4156 return;
4157 }
4158
4159 if is_folded {
4160 editor.unfold_buffer(buffer_id, cx);
4161 } else {
4162 editor.fold_buffer(buffer_id, cx);
4163 }
4164 }
4165 })),
4166 ),
4167 );
4168
4169 let file = for_excerpt.buffer.file().cloned();
4170 let editor = self.editor.clone();
4171
4172 right_click_menu("buffer-header-context-menu")
4173 .trigger(move |_, _, _| header)
4174 .menu(move |window, cx| {
4175 let menu_context = focus_handle.clone();
4176 let editor = editor.clone();
4177 let file = file.clone();
4178 ContextMenu::build(window, cx, move |mut menu, window, cx| {
4179 if let Some(file) = file
4180 && let Some(project) = editor.read(cx).project()
4181 && let Some(worktree) =
4182 project.read(cx).worktree_for_id(file.worktree_id(cx), cx)
4183 {
4184 let path_style = file.path_style(cx);
4185 let worktree = worktree.read(cx);
4186 let relative_path = file.path();
4187 let entry_for_path = worktree.entry_for_path(relative_path);
4188 let abs_path = entry_for_path.map(|e| {
4189 e.canonical_path.as_deref().map_or_else(
4190 || worktree.absolutize(relative_path),
4191 Path::to_path_buf,
4192 )
4193 });
4194 let has_relative_path = worktree.root_entry().is_some_and(Entry::is_dir);
4195
4196 let parent_abs_path = abs_path
4197 .as_ref()
4198 .and_then(|abs_path| Some(abs_path.parent()?.to_path_buf()));
4199 let relative_path = has_relative_path
4200 .then_some(relative_path)
4201 .map(ToOwned::to_owned);
4202
4203 let visible_in_project_panel =
4204 relative_path.is_some() && worktree.is_visible();
4205 let reveal_in_project_panel = entry_for_path
4206 .filter(|_| visible_in_project_panel)
4207 .map(|entry| entry.id);
4208 menu = menu
4209 .when_some(abs_path, |menu, abs_path| {
4210 menu.entry(
4211 "Copy Path",
4212 Some(Box::new(zed_actions::workspace::CopyPath)),
4213 window.handler_for(&editor, move |_, _, cx| {
4214 cx.write_to_clipboard(ClipboardItem::new_string(
4215 abs_path.to_string_lossy().into_owned(),
4216 ));
4217 }),
4218 )
4219 })
4220 .when_some(relative_path, |menu, relative_path| {
4221 menu.entry(
4222 "Copy Relative Path",
4223 Some(Box::new(zed_actions::workspace::CopyRelativePath)),
4224 window.handler_for(&editor, move |_, _, cx| {
4225 cx.write_to_clipboard(ClipboardItem::new_string(
4226 relative_path.display(path_style).to_string(),
4227 ));
4228 }),
4229 )
4230 })
4231 .when(
4232 reveal_in_project_panel.is_some() || parent_abs_path.is_some(),
4233 |menu| menu.separator(),
4234 )
4235 .when_some(reveal_in_project_panel, |menu, entry_id| {
4236 menu.entry(
4237 "Reveal In Project Panel",
4238 Some(Box::new(RevealInProjectPanel::default())),
4239 window.handler_for(&editor, move |editor, _, cx| {
4240 if let Some(project) = &mut editor.project {
4241 project.update(cx, |_, cx| {
4242 cx.emit(project::Event::RevealInProjectPanel(
4243 entry_id,
4244 ))
4245 });
4246 }
4247 }),
4248 )
4249 })
4250 .when_some(parent_abs_path, |menu, parent_abs_path| {
4251 menu.entry(
4252 "Open in Terminal",
4253 Some(Box::new(OpenInTerminal)),
4254 window.handler_for(&editor, move |_, window, cx| {
4255 window.dispatch_action(
4256 OpenTerminal {
4257 working_directory: parent_abs_path.clone(),
4258 }
4259 .boxed_clone(),
4260 cx,
4261 );
4262 }),
4263 )
4264 });
4265 }
4266
4267 menu.context(menu_context)
4268 })
4269 })
4270 }
4271
4272 fn render_blocks(
4273 &self,
4274 rows: Range<DisplayRow>,
4275 snapshot: &EditorSnapshot,
4276 hitbox: &Hitbox,
4277 text_hitbox: &Hitbox,
4278 editor_width: Pixels,
4279 scroll_width: &mut Pixels,
4280 editor_margins: &EditorMargins,
4281 em_width: Pixels,
4282 text_x: Pixels,
4283 line_height: Pixels,
4284 line_layouts: &mut [LineWithInvisibles],
4285 selections: &[Selection<Point>],
4286 selected_buffer_ids: &Vec<BufferId>,
4287 latest_selection_anchors: &HashMap<BufferId, Anchor>,
4288 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4289 sticky_header_excerpt_id: Option<ExcerptId>,
4290 window: &mut Window,
4291 cx: &mut App,
4292 ) -> RenderBlocksOutput {
4293 let (fixed_blocks, non_fixed_blocks) = snapshot
4294 .blocks_in_range(rows.clone())
4295 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
4296
4297 let mut focused_block = self
4298 .editor
4299 .update(cx, |editor, _| editor.take_focused_block());
4300 let mut fixed_block_max_width = Pixels::ZERO;
4301 let mut blocks = Vec::new();
4302 let mut resized_blocks = HashMap::default();
4303 let mut row_block_types = HashMap::default();
4304 let mut block_resize_offset: i32 = 0;
4305
4306 for (row, block) in fixed_blocks {
4307 let block_id = block.id();
4308
4309 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4310 focused_block = None;
4311 }
4312
4313 if let Some((element, element_size, row, x_offset)) = self.render_block(
4314 block,
4315 AvailableSpace::MinContent,
4316 block_id,
4317 row,
4318 snapshot,
4319 text_x,
4320 &rows,
4321 line_layouts,
4322 editor_margins,
4323 line_height,
4324 em_width,
4325 text_hitbox,
4326 editor_width,
4327 scroll_width,
4328 &mut resized_blocks,
4329 &mut row_block_types,
4330 selections,
4331 selected_buffer_ids,
4332 latest_selection_anchors,
4333 is_row_soft_wrapped,
4334 sticky_header_excerpt_id,
4335 &mut block_resize_offset,
4336 window,
4337 cx,
4338 ) {
4339 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
4340 blocks.push(BlockLayout {
4341 id: block_id,
4342 x_offset,
4343 row: Some(row),
4344 element,
4345 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
4346 style: BlockStyle::Fixed,
4347 overlaps_gutter: true,
4348 is_buffer_header: block.is_buffer_header(),
4349 });
4350 }
4351 }
4352
4353 for (row, block) in non_fixed_blocks {
4354 let style = block.style();
4355 let width = match (style, block.place_near()) {
4356 (_, true) => AvailableSpace::MinContent,
4357 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
4358 (BlockStyle::Flex, _) => hitbox
4359 .size
4360 .width
4361 .max(fixed_block_max_width)
4362 .max(editor_margins.gutter.width + *scroll_width)
4363 .into(),
4364 (BlockStyle::Fixed, _) => unreachable!(),
4365 };
4366 let block_id = block.id();
4367
4368 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4369 focused_block = None;
4370 }
4371
4372 if let Some((element, element_size, row, x_offset)) = self.render_block(
4373 block,
4374 width,
4375 block_id,
4376 row,
4377 snapshot,
4378 text_x,
4379 &rows,
4380 line_layouts,
4381 editor_margins,
4382 line_height,
4383 em_width,
4384 text_hitbox,
4385 editor_width,
4386 scroll_width,
4387 &mut resized_blocks,
4388 &mut row_block_types,
4389 selections,
4390 selected_buffer_ids,
4391 latest_selection_anchors,
4392 is_row_soft_wrapped,
4393 sticky_header_excerpt_id,
4394 &mut block_resize_offset,
4395 window,
4396 cx,
4397 ) {
4398 blocks.push(BlockLayout {
4399 id: block_id,
4400 x_offset,
4401 row: Some(row),
4402 element,
4403 available_space: size(width, element_size.height.into()),
4404 style,
4405 overlaps_gutter: !block.place_near(),
4406 is_buffer_header: block.is_buffer_header(),
4407 });
4408 }
4409 }
4410
4411 if let Some(focused_block) = focused_block
4412 && let Some(focus_handle) = focused_block.focus_handle.upgrade()
4413 && focus_handle.is_focused(window)
4414 && let Some(block) = snapshot.block_for_id(focused_block.id)
4415 {
4416 let style = block.style();
4417 let width = match style {
4418 BlockStyle::Fixed => AvailableSpace::MinContent,
4419 BlockStyle::Flex => AvailableSpace::Definite(
4420 hitbox
4421 .size
4422 .width
4423 .max(fixed_block_max_width)
4424 .max(editor_margins.gutter.width + *scroll_width),
4425 ),
4426 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
4427 };
4428
4429 if let Some((element, element_size, _, x_offset)) = self.render_block(
4430 &block,
4431 width,
4432 focused_block.id,
4433 rows.end,
4434 snapshot,
4435 text_x,
4436 &rows,
4437 line_layouts,
4438 editor_margins,
4439 line_height,
4440 em_width,
4441 text_hitbox,
4442 editor_width,
4443 scroll_width,
4444 &mut resized_blocks,
4445 &mut row_block_types,
4446 selections,
4447 selected_buffer_ids,
4448 latest_selection_anchors,
4449 is_row_soft_wrapped,
4450 sticky_header_excerpt_id,
4451 &mut block_resize_offset,
4452 window,
4453 cx,
4454 ) {
4455 blocks.push(BlockLayout {
4456 id: block.id(),
4457 x_offset,
4458 row: None,
4459 element,
4460 available_space: size(width, element_size.height.into()),
4461 style,
4462 overlaps_gutter: true,
4463 is_buffer_header: block.is_buffer_header(),
4464 });
4465 }
4466 }
4467
4468 if resized_blocks.is_empty() {
4469 *scroll_width =
4470 (*scroll_width).max(fixed_block_max_width - editor_margins.gutter.width);
4471 }
4472
4473 RenderBlocksOutput {
4474 blocks,
4475 row_block_types,
4476 resized_blocks: (!resized_blocks.is_empty()).then_some(resized_blocks),
4477 }
4478 }
4479
4480 fn layout_blocks(
4481 &self,
4482 blocks: &mut Vec<BlockLayout>,
4483 hitbox: &Hitbox,
4484 line_height: Pixels,
4485 scroll_position: gpui::Point<ScrollOffset>,
4486 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4487 window: &mut Window,
4488 cx: &mut App,
4489 ) {
4490 for block in blocks {
4491 let mut origin = if let Some(row) = block.row {
4492 hitbox.origin
4493 + point(
4494 block.x_offset,
4495 Pixels::from(
4496 (row.as_f64() - scroll_position.y)
4497 * ScrollPixelOffset::from(line_height),
4498 ),
4499 )
4500 } else {
4501 // Position the block outside the visible area
4502 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
4503 };
4504
4505 if !matches!(block.style, BlockStyle::Sticky) {
4506 origin += point(Pixels::from(-scroll_pixel_position.x), Pixels::ZERO);
4507 }
4508
4509 let focus_handle =
4510 block
4511 .element
4512 .prepaint_as_root(origin, block.available_space, window, cx);
4513
4514 if let Some(focus_handle) = focus_handle {
4515 self.editor.update(cx, |editor, _cx| {
4516 editor.set_focused_block(FocusedBlock {
4517 id: block.id,
4518 focus_handle: focus_handle.downgrade(),
4519 });
4520 });
4521 }
4522 }
4523 }
4524
4525 fn layout_sticky_buffer_header(
4526 &self,
4527 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
4528 scroll_position: gpui::Point<ScrollOffset>,
4529 line_height: Pixels,
4530 right_margin: Pixels,
4531 snapshot: &EditorSnapshot,
4532 hitbox: &Hitbox,
4533 selected_buffer_ids: &Vec<BufferId>,
4534 blocks: &[BlockLayout],
4535 latest_selection_anchors: &HashMap<BufferId, Anchor>,
4536 window: &mut Window,
4537 cx: &mut App,
4538 ) -> AnyElement {
4539 let jump_data = header_jump_data(
4540 snapshot,
4541 DisplayRow(scroll_position.y as u32),
4542 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
4543 excerpt,
4544 latest_selection_anchors,
4545 );
4546
4547 let editor_bg_color = cx.theme().colors().editor_background;
4548
4549 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
4550
4551 let available_width = hitbox.bounds.size.width - right_margin;
4552
4553 let mut header = v_flex()
4554 .w_full()
4555 .relative()
4556 .child(
4557 div()
4558 .w(available_width)
4559 .h(FILE_HEADER_HEIGHT as f32 * line_height)
4560 .bg(linear_gradient(
4561 0.,
4562 linear_color_stop(editor_bg_color.opacity(0.), 0.),
4563 linear_color_stop(editor_bg_color, 0.6),
4564 ))
4565 .absolute()
4566 .top_0(),
4567 )
4568 .child(
4569 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
4570 .into_any_element(),
4571 )
4572 .into_any_element();
4573
4574 let mut origin = hitbox.origin;
4575 // Move floating header up to avoid colliding with the next buffer header.
4576 for block in blocks.iter() {
4577 if !block.is_buffer_header {
4578 continue;
4579 }
4580
4581 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position.y as u32) else {
4582 continue;
4583 };
4584
4585 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
4586 let offset = scroll_position.y - max_row as f64;
4587
4588 if offset > 0.0 {
4589 origin.y -= Pixels::from(offset * ScrollPixelOffset::from(line_height));
4590 }
4591 break;
4592 }
4593
4594 let size = size(
4595 AvailableSpace::Definite(available_width),
4596 AvailableSpace::MinContent,
4597 );
4598
4599 header.prepaint_as_root(origin, size, window, cx);
4600
4601 header
4602 }
4603
4604 fn layout_sticky_headers(
4605 &self,
4606 snapshot: &EditorSnapshot,
4607 editor_width: Pixels,
4608 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4609 line_height: Pixels,
4610 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4611 content_origin: gpui::Point<Pixels>,
4612 gutter_dimensions: &GutterDimensions,
4613 gutter_hitbox: &Hitbox,
4614 text_hitbox: &Hitbox,
4615 window: &mut Window,
4616 cx: &mut App,
4617 ) -> Option<StickyHeaders> {
4618 let show_line_numbers = snapshot
4619 .show_line_numbers
4620 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
4621
4622 let rows = Self::sticky_headers(self.editor.read(cx), snapshot, cx);
4623
4624 let mut lines = Vec::<StickyHeaderLine>::new();
4625
4626 for StickyHeader {
4627 item,
4628 sticky_row,
4629 start_point,
4630 offset,
4631 } in rows.into_iter().rev()
4632 {
4633 let line = layout_line(
4634 sticky_row,
4635 snapshot,
4636 &self.style,
4637 editor_width,
4638 is_row_soft_wrapped,
4639 window,
4640 cx,
4641 );
4642
4643 let line_number = show_line_numbers.then(|| {
4644 let number = (start_point.row + 1).to_string();
4645 let color = cx.theme().colors().editor_line_number;
4646 self.shape_line_number(SharedString::from(number), color, window)
4647 });
4648
4649 lines.push(StickyHeaderLine::new(
4650 sticky_row,
4651 line_height * offset as f32,
4652 line,
4653 line_number,
4654 item.range.start,
4655 line_height,
4656 scroll_pixel_position,
4657 content_origin,
4658 gutter_hitbox,
4659 text_hitbox,
4660 window,
4661 cx,
4662 ));
4663 }
4664
4665 lines.reverse();
4666 if lines.is_empty() {
4667 return None;
4668 }
4669
4670 Some(StickyHeaders {
4671 lines,
4672 gutter_background: cx.theme().colors().editor_gutter_background,
4673 content_background: self.style.background,
4674 gutter_right_padding: gutter_dimensions.right_padding,
4675 })
4676 }
4677
4678 pub(crate) fn sticky_headers(
4679 editor: &Editor,
4680 snapshot: &EditorSnapshot,
4681 cx: &App,
4682 ) -> Vec<StickyHeader> {
4683 let scroll_top = snapshot.scroll_position().y;
4684
4685 let mut end_rows = Vec::<DisplayRow>::new();
4686 let mut rows = Vec::<StickyHeader>::new();
4687
4688 let items = editor.sticky_headers(cx).unwrap_or_default();
4689
4690 for item in items {
4691 let start_point = item.range.start.to_point(snapshot.buffer_snapshot());
4692 let end_point = item.range.end.to_point(snapshot.buffer_snapshot());
4693
4694 let sticky_row = snapshot
4695 .display_snapshot
4696 .point_to_display_point(start_point, Bias::Left)
4697 .row();
4698 let end_row = snapshot
4699 .display_snapshot
4700 .point_to_display_point(end_point, Bias::Left)
4701 .row();
4702 let max_sticky_row = end_row.previous_row();
4703 if max_sticky_row <= sticky_row {
4704 continue;
4705 }
4706
4707 while end_rows
4708 .last()
4709 .is_some_and(|&last_end| last_end < sticky_row)
4710 {
4711 end_rows.pop();
4712 }
4713 let depth = end_rows.len();
4714 let adjusted_scroll_top = scroll_top + depth as f64;
4715
4716 if sticky_row.as_f64() >= adjusted_scroll_top || end_row.as_f64() <= adjusted_scroll_top
4717 {
4718 continue;
4719 }
4720
4721 let max_scroll_offset = max_sticky_row.as_f64() - scroll_top;
4722 let offset = (depth as f64).min(max_scroll_offset);
4723
4724 end_rows.push(end_row);
4725 rows.push(StickyHeader {
4726 item,
4727 sticky_row,
4728 start_point,
4729 offset,
4730 });
4731 }
4732
4733 rows
4734 }
4735
4736 fn layout_cursor_popovers(
4737 &self,
4738 line_height: Pixels,
4739 text_hitbox: &Hitbox,
4740 content_origin: gpui::Point<Pixels>,
4741 right_margin: Pixels,
4742 start_row: DisplayRow,
4743 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4744 line_layouts: &[LineWithInvisibles],
4745 cursor: DisplayPoint,
4746 cursor_point: Point,
4747 style: &EditorStyle,
4748 window: &mut Window,
4749 cx: &mut App,
4750 ) -> Option<ContextMenuLayout> {
4751 let mut min_menu_height = Pixels::ZERO;
4752 let mut max_menu_height = Pixels::ZERO;
4753 let mut height_above_menu = Pixels::ZERO;
4754 let height_below_menu = Pixels::ZERO;
4755 let mut edit_prediction_popover_visible = false;
4756 let mut context_menu_visible = false;
4757 let context_menu_placement;
4758
4759 {
4760 let editor = self.editor.read(cx);
4761 if editor.edit_prediction_visible_in_cursor_popover(editor.has_active_edit_prediction())
4762 {
4763 height_above_menu +=
4764 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
4765 edit_prediction_popover_visible = true;
4766 }
4767
4768 if editor.context_menu_visible()
4769 && let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin()
4770 {
4771 let (min_height_in_lines, max_height_in_lines) = editor
4772 .context_menu_options
4773 .as_ref()
4774 .map_or((3, 12), |options| {
4775 (options.min_entries_visible, options.max_entries_visible)
4776 });
4777
4778 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4779 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4780 context_menu_visible = true;
4781 }
4782 context_menu_placement = editor
4783 .context_menu_options
4784 .as_ref()
4785 .and_then(|options| options.placement.clone());
4786 }
4787
4788 let visible = edit_prediction_popover_visible || context_menu_visible;
4789 if !visible {
4790 return None;
4791 }
4792
4793 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
4794 let target_position = content_origin
4795 + gpui::Point {
4796 x: cmp::max(
4797 px(0.),
4798 Pixels::from(
4799 ScrollPixelOffset::from(
4800 cursor_row_layout.x_for_index(cursor.column() as usize),
4801 ) - scroll_pixel_position.x,
4802 ),
4803 ),
4804 y: cmp::max(
4805 px(0.),
4806 Pixels::from(
4807 cursor.row().next_row().as_f64() * ScrollPixelOffset::from(line_height)
4808 - scroll_pixel_position.y,
4809 ),
4810 ),
4811 };
4812
4813 let viewport_bounds =
4814 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4815 right: -right_margin - MENU_GAP,
4816 ..Default::default()
4817 });
4818
4819 let min_height = height_above_menu + min_menu_height + height_below_menu;
4820 let max_height = height_above_menu + max_menu_height + height_below_menu;
4821 let (laid_out_popovers, y_flipped) = self.layout_popovers_above_or_below_line(
4822 target_position,
4823 line_height,
4824 min_height,
4825 max_height,
4826 context_menu_placement,
4827 text_hitbox,
4828 viewport_bounds,
4829 window,
4830 cx,
4831 |height, max_width_for_stable_x, y_flipped, window, cx| {
4832 // First layout the menu to get its size - others can be at least this wide.
4833 let context_menu = if context_menu_visible {
4834 let menu_height = if y_flipped {
4835 height - height_below_menu
4836 } else {
4837 height - height_above_menu
4838 };
4839 let mut element = self
4840 .render_context_menu(line_height, menu_height, window, cx)
4841 .expect("Visible context menu should always render.");
4842 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4843 Some((CursorPopoverType::CodeContextMenu, element, size))
4844 } else {
4845 None
4846 };
4847 let min_width = context_menu
4848 .as_ref()
4849 .map_or(px(0.), |(_, _, size)| size.width);
4850 let max_width = max_width_for_stable_x.max(
4851 context_menu
4852 .as_ref()
4853 .map_or(px(0.), |(_, _, size)| size.width),
4854 );
4855
4856 let edit_prediction = if edit_prediction_popover_visible {
4857 self.editor.update(cx, move |editor, cx| {
4858 let accept_binding =
4859 editor.accept_edit_prediction_keybind(false, window, cx);
4860 let mut element = editor.render_edit_prediction_cursor_popover(
4861 min_width,
4862 max_width,
4863 cursor_point,
4864 style,
4865 accept_binding.keystroke(),
4866 window,
4867 cx,
4868 )?;
4869 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4870 Some((CursorPopoverType::EditPrediction, element, size))
4871 })
4872 } else {
4873 None
4874 };
4875 vec![edit_prediction, context_menu]
4876 .into_iter()
4877 .flatten()
4878 .collect::<Vec<_>>()
4879 },
4880 )?;
4881
4882 let (menu_ix, (_, menu_bounds)) = laid_out_popovers
4883 .iter()
4884 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))?;
4885 let last_ix = laid_out_popovers.len() - 1;
4886 let menu_is_last = menu_ix == last_ix;
4887 let first_popover_bounds = laid_out_popovers[0].1;
4888 let last_popover_bounds = laid_out_popovers[last_ix].1;
4889
4890 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
4891 // right, and otherwise it goes below or to the right.
4892 let mut target_bounds = Bounds::from_corners(
4893 first_popover_bounds.origin,
4894 last_popover_bounds.bottom_right(),
4895 );
4896 target_bounds.size.width = menu_bounds.size.width;
4897
4898 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
4899 // based on this is preferred for layout stability.
4900 let mut max_target_bounds = target_bounds;
4901 max_target_bounds.size.height = max_height;
4902 if y_flipped {
4903 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
4904 }
4905
4906 // Add spacing around `target_bounds` and `max_target_bounds`.
4907 let mut extend_amount = Edges::all(MENU_GAP);
4908 if y_flipped {
4909 extend_amount.bottom = line_height;
4910 } else {
4911 extend_amount.top = line_height;
4912 }
4913 let target_bounds = target_bounds.extend(extend_amount);
4914 let max_target_bounds = max_target_bounds.extend(extend_amount);
4915
4916 let must_place_above_or_below =
4917 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
4918 laid_out_popovers[menu_ix + 1..]
4919 .iter()
4920 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
4921 } else {
4922 false
4923 };
4924
4925 let aside_bounds = self.layout_context_menu_aside(
4926 y_flipped,
4927 *menu_bounds,
4928 target_bounds,
4929 max_target_bounds,
4930 max_menu_height,
4931 must_place_above_or_below,
4932 text_hitbox,
4933 viewport_bounds,
4934 window,
4935 cx,
4936 );
4937
4938 if let Some(menu_bounds) = laid_out_popovers.iter().find_map(|(popover_type, bounds)| {
4939 if matches!(popover_type, CursorPopoverType::CodeContextMenu) {
4940 Some(*bounds)
4941 } else {
4942 None
4943 }
4944 }) {
4945 let bounds = if let Some(aside_bounds) = aside_bounds {
4946 menu_bounds.union(&aside_bounds)
4947 } else {
4948 menu_bounds
4949 };
4950 return Some(ContextMenuLayout { y_flipped, bounds });
4951 }
4952
4953 None
4954 }
4955
4956 fn layout_gutter_menu(
4957 &self,
4958 line_height: Pixels,
4959 text_hitbox: &Hitbox,
4960 content_origin: gpui::Point<Pixels>,
4961 right_margin: Pixels,
4962 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4963 gutter_overshoot: Pixels,
4964 window: &mut Window,
4965 cx: &mut App,
4966 ) {
4967 let editor = self.editor.read(cx);
4968 if !editor.context_menu_visible() {
4969 return;
4970 }
4971 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
4972 editor.context_menu_origin()
4973 else {
4974 return;
4975 };
4976 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
4977 // indicator than just a plain first column of the text field.
4978 let target_position = content_origin
4979 + gpui::Point {
4980 x: -gutter_overshoot,
4981 y: Pixels::from(
4982 gutter_row.next_row().as_f64() * ScrollPixelOffset::from(line_height)
4983 - scroll_pixel_position.y,
4984 ),
4985 };
4986
4987 let (min_height_in_lines, max_height_in_lines) = editor
4988 .context_menu_options
4989 .as_ref()
4990 .map_or((3, 12), |options| {
4991 (options.min_entries_visible, options.max_entries_visible)
4992 });
4993
4994 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4995 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4996 let viewport_bounds =
4997 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4998 right: -right_margin - MENU_GAP,
4999 ..Default::default()
5000 });
5001 self.layout_popovers_above_or_below_line(
5002 target_position,
5003 line_height,
5004 min_height,
5005 max_height,
5006 editor
5007 .context_menu_options
5008 .as_ref()
5009 .and_then(|options| options.placement.clone()),
5010 text_hitbox,
5011 viewport_bounds,
5012 window,
5013 cx,
5014 move |height, _max_width_for_stable_x, _, window, cx| {
5015 let mut element = self
5016 .render_context_menu(line_height, height, window, cx)
5017 .expect("Visible context menu should always render.");
5018 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
5019 vec![(CursorPopoverType::CodeContextMenu, element, size)]
5020 },
5021 );
5022 }
5023
5024 fn layout_popovers_above_or_below_line(
5025 &self,
5026 target_position: gpui::Point<Pixels>,
5027 line_height: Pixels,
5028 min_height: Pixels,
5029 max_height: Pixels,
5030 placement: Option<ContextMenuPlacement>,
5031 text_hitbox: &Hitbox,
5032 viewport_bounds: Bounds<Pixels>,
5033 window: &mut Window,
5034 cx: &mut App,
5035 make_sized_popovers: impl FnOnce(
5036 Pixels,
5037 Pixels,
5038 bool,
5039 &mut Window,
5040 &mut App,
5041 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
5042 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
5043 let text_style = TextStyleRefinement {
5044 line_height: Some(DefiniteLength::Fraction(
5045 BufferLineHeight::Comfortable.value(),
5046 )),
5047 ..Default::default()
5048 };
5049 window.with_text_style(Some(text_style), |window| {
5050 // If the max height won't fit below and there is more space above, put it above the line.
5051 let bottom_y_when_flipped = target_position.y - line_height;
5052 let available_above = bottom_y_when_flipped - text_hitbox.top();
5053 let available_below = text_hitbox.bottom() - target_position.y;
5054 let y_overflows_below = max_height > available_below;
5055 let mut y_flipped = match placement {
5056 Some(ContextMenuPlacement::Above) => true,
5057 Some(ContextMenuPlacement::Below) => false,
5058 None => y_overflows_below && available_above > available_below,
5059 };
5060 let mut height = cmp::min(
5061 max_height,
5062 if y_flipped {
5063 available_above
5064 } else {
5065 available_below
5066 },
5067 );
5068
5069 // If the min height doesn't fit within text bounds, instead fit within the window.
5070 if height < min_height {
5071 let available_above = bottom_y_when_flipped;
5072 let available_below = viewport_bounds.bottom() - target_position.y;
5073 let (y_flipped_override, height_override) = match placement {
5074 Some(ContextMenuPlacement::Above) => {
5075 (true, cmp::min(available_above, min_height))
5076 }
5077 Some(ContextMenuPlacement::Below) => {
5078 (false, cmp::min(available_below, min_height))
5079 }
5080 None => {
5081 if available_below > min_height {
5082 (false, min_height)
5083 } else if available_above > min_height {
5084 (true, min_height)
5085 } else if available_above > available_below {
5086 (true, available_above)
5087 } else {
5088 (false, available_below)
5089 }
5090 }
5091 };
5092 y_flipped = y_flipped_override;
5093 height = height_override;
5094 }
5095
5096 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
5097
5098 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
5099 // for very narrow windows.
5100 let popovers =
5101 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
5102 if popovers.is_empty() {
5103 return None;
5104 }
5105
5106 let max_width = popovers
5107 .iter()
5108 .map(|(_, _, size)| size.width)
5109 .max()
5110 .unwrap_or_default();
5111
5112 let mut current_position = gpui::Point {
5113 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
5114 // overflow. Include space for the scrollbar.
5115 x: target_position
5116 .x
5117 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
5118 y: if y_flipped {
5119 bottom_y_when_flipped
5120 } else {
5121 target_position.y
5122 },
5123 };
5124
5125 let mut laid_out_popovers = popovers
5126 .into_iter()
5127 .map(|(popover_type, element, size)| {
5128 if y_flipped {
5129 current_position.y -= size.height;
5130 }
5131 let position = current_position;
5132 window.defer_draw(element, current_position, 1);
5133 if !y_flipped {
5134 current_position.y += size.height + MENU_GAP;
5135 } else {
5136 current_position.y -= MENU_GAP;
5137 }
5138 (popover_type, Bounds::new(position, size))
5139 })
5140 .collect::<Vec<_>>();
5141
5142 if y_flipped {
5143 laid_out_popovers.reverse();
5144 }
5145
5146 Some((laid_out_popovers, y_flipped))
5147 })
5148 }
5149
5150 fn layout_context_menu_aside(
5151 &self,
5152 y_flipped: bool,
5153 menu_bounds: Bounds<Pixels>,
5154 target_bounds: Bounds<Pixels>,
5155 max_target_bounds: Bounds<Pixels>,
5156 max_height: Pixels,
5157 must_place_above_or_below: bool,
5158 text_hitbox: &Hitbox,
5159 viewport_bounds: Bounds<Pixels>,
5160 window: &mut Window,
5161 cx: &mut App,
5162 ) -> Option<Bounds<Pixels>> {
5163 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
5164 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
5165 && !must_place_above_or_below
5166 {
5167 let max_width = cmp::min(
5168 available_within_viewport.right - px(1.),
5169 MENU_ASIDE_MAX_WIDTH,
5170 );
5171 let mut aside = self.render_context_menu_aside(
5172 size(max_width, max_height - POPOVER_Y_PADDING),
5173 window,
5174 cx,
5175 )?;
5176 let size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5177 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
5178 Some((aside, right_position, size))
5179 } else {
5180 let max_size = size(
5181 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
5182 // won't be needed here.
5183 cmp::min(
5184 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
5185 viewport_bounds.right(),
5186 ),
5187 cmp::min(
5188 max_height,
5189 cmp::max(
5190 available_within_viewport.top,
5191 available_within_viewport.bottom,
5192 ),
5193 ) - POPOVER_Y_PADDING,
5194 );
5195 let mut aside = self.render_context_menu_aside(max_size, window, cx)?;
5196 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5197
5198 let top_position = point(
5199 menu_bounds.origin.x,
5200 target_bounds.top() - actual_size.height,
5201 );
5202 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
5203
5204 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
5205 // Prefer to fit on the same side of the line as the menu, then on the other side of
5206 // the line.
5207 if !y_flipped && wanted.height < available.bottom {
5208 Some(bottom_position)
5209 } else if !y_flipped && wanted.height < available.top {
5210 Some(top_position)
5211 } else if y_flipped && wanted.height < available.top {
5212 Some(top_position)
5213 } else if y_flipped && wanted.height < available.bottom {
5214 Some(bottom_position)
5215 } else {
5216 None
5217 }
5218 };
5219
5220 // Prefer choosing a direction using max sizes rather than actual size for stability.
5221 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
5222 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
5223 let aside_position = fit_within(available_within_text, wanted)
5224 // Fallback: fit max size in window.
5225 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
5226 // Fallback: fit actual size in window.
5227 .or_else(|| fit_within(available_within_viewport, actual_size));
5228
5229 aside_position.map(|position| (aside, position, actual_size))
5230 };
5231
5232 // Skip drawing if it doesn't fit anywhere.
5233 if let Some((aside, position, size)) = positioned_aside {
5234 let aside_bounds = Bounds::new(position, size);
5235 window.defer_draw(aside, position, 2);
5236 return Some(aside_bounds);
5237 }
5238
5239 None
5240 }
5241
5242 fn render_context_menu(
5243 &self,
5244 line_height: Pixels,
5245 height: Pixels,
5246 window: &mut Window,
5247 cx: &mut App,
5248 ) -> Option<AnyElement> {
5249 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
5250 self.editor.update(cx, |editor, cx| {
5251 editor.render_context_menu(&self.style, max_height_in_lines, window, cx)
5252 })
5253 }
5254
5255 fn render_context_menu_aside(
5256 &self,
5257 max_size: Size<Pixels>,
5258 window: &mut Window,
5259 cx: &mut App,
5260 ) -> Option<AnyElement> {
5261 if max_size.width < px(100.) || max_size.height < px(12.) {
5262 None
5263 } else {
5264 self.editor.update(cx, |editor, cx| {
5265 editor.render_context_menu_aside(max_size, window, cx)
5266 })
5267 }
5268 }
5269
5270 fn layout_mouse_context_menu(
5271 &self,
5272 editor_snapshot: &EditorSnapshot,
5273 visible_range: Range<DisplayRow>,
5274 content_origin: gpui::Point<Pixels>,
5275 window: &mut Window,
5276 cx: &mut App,
5277 ) -> Option<AnyElement> {
5278 let position = self.editor.update(cx, |editor, _cx| {
5279 let visible_start_point = editor.display_to_pixel_point(
5280 DisplayPoint::new(visible_range.start, 0),
5281 editor_snapshot,
5282 window,
5283 )?;
5284 let visible_end_point = editor.display_to_pixel_point(
5285 DisplayPoint::new(visible_range.end, 0),
5286 editor_snapshot,
5287 window,
5288 )?;
5289
5290 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5291 let (source_display_point, position) = match mouse_context_menu.position {
5292 MenuPosition::PinnedToScreen(point) => (None, point),
5293 MenuPosition::PinnedToEditor { source, offset } => {
5294 let source_display_point = source.to_display_point(editor_snapshot);
5295 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
5296 let position = content_origin + source_point + offset;
5297 (Some(source_display_point), position)
5298 }
5299 };
5300
5301 let source_included = source_display_point.is_none_or(|source_display_point| {
5302 visible_range
5303 .to_inclusive()
5304 .contains(&source_display_point.row())
5305 });
5306 let position_included =
5307 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
5308 if !source_included && !position_included {
5309 None
5310 } else {
5311 Some(position)
5312 }
5313 })?;
5314
5315 let text_style = TextStyleRefinement {
5316 line_height: Some(DefiniteLength::Fraction(
5317 BufferLineHeight::Comfortable.value(),
5318 )),
5319 ..Default::default()
5320 };
5321 window.with_text_style(Some(text_style), |window| {
5322 let mut element = self.editor.read_with(cx, |editor, _| {
5323 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5324 let context_menu = mouse_context_menu.context_menu.clone();
5325
5326 Some(
5327 deferred(
5328 anchored()
5329 .position(position)
5330 .child(context_menu)
5331 .anchor(Corner::TopLeft)
5332 .snap_to_window_with_margin(px(8.)),
5333 )
5334 .with_priority(1)
5335 .into_any(),
5336 )
5337 })?;
5338
5339 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
5340 Some(element)
5341 })
5342 }
5343
5344 fn layout_hover_popovers(
5345 &self,
5346 snapshot: &EditorSnapshot,
5347 hitbox: &Hitbox,
5348 visible_display_row_range: Range<DisplayRow>,
5349 content_origin: gpui::Point<Pixels>,
5350 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5351 line_layouts: &[LineWithInvisibles],
5352 line_height: Pixels,
5353 em_width: Pixels,
5354 context_menu_layout: Option<ContextMenuLayout>,
5355 window: &mut Window,
5356 cx: &mut App,
5357 ) {
5358 struct MeasuredHoverPopover {
5359 element: AnyElement,
5360 size: Size<Pixels>,
5361 horizontal_offset: Pixels,
5362 }
5363
5364 let max_size = size(
5365 (120. * em_width) // Default size
5366 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5367 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5368 (16. * line_height) // Default size
5369 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5370 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5371 );
5372
5373 let hover_popovers = self.editor.update(cx, |editor, cx| {
5374 editor.hover_state.render(
5375 snapshot,
5376 visible_display_row_range.clone(),
5377 max_size,
5378 &editor.text_layout_details(window),
5379 window,
5380 cx,
5381 )
5382 });
5383 let Some((popover_position, hover_popovers)) = hover_popovers else {
5384 return;
5385 };
5386
5387 // This is safe because we check on layout whether the required row is available
5388 let hovered_row_layout = &line_layouts[popover_position
5389 .row()
5390 .minus(visible_display_row_range.start)
5391 as usize];
5392
5393 // Compute Hovered Point
5394 let x = hovered_row_layout.x_for_index(popover_position.column() as usize)
5395 - Pixels::from(scroll_pixel_position.x);
5396 let y = Pixels::from(
5397 popover_position.row().as_f64() * ScrollPixelOffset::from(line_height)
5398 - scroll_pixel_position.y,
5399 );
5400 let hovered_point = content_origin + point(x, y);
5401
5402 let mut overall_height = Pixels::ZERO;
5403 let mut measured_hover_popovers = Vec::new();
5404 for (position, mut hover_popover) in hover_popovers.into_iter().with_position() {
5405 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
5406 let horizontal_offset =
5407 (hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
5408 .min(Pixels::ZERO);
5409 match position {
5410 itertools::Position::Middle | itertools::Position::Last => {
5411 overall_height += HOVER_POPOVER_GAP
5412 }
5413 _ => {}
5414 }
5415 overall_height += size.height;
5416 measured_hover_popovers.push(MeasuredHoverPopover {
5417 element: hover_popover,
5418 size,
5419 horizontal_offset,
5420 });
5421 }
5422
5423 fn draw_occluder(
5424 width: Pixels,
5425 origin: gpui::Point<Pixels>,
5426 window: &mut Window,
5427 cx: &mut App,
5428 ) {
5429 let mut occlusion = div()
5430 .size_full()
5431 .occlude()
5432 .on_mouse_move(|_, _, cx| cx.stop_propagation())
5433 .into_any_element();
5434 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
5435 window.defer_draw(occlusion, origin, 2);
5436 }
5437
5438 fn place_popovers_above(
5439 hovered_point: gpui::Point<Pixels>,
5440 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5441 window: &mut Window,
5442 cx: &mut App,
5443 ) {
5444 let mut current_y = hovered_point.y;
5445 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5446 let size = popover.size;
5447 let popover_origin = point(
5448 hovered_point.x + popover.horizontal_offset,
5449 current_y - size.height,
5450 );
5451
5452 window.defer_draw(popover.element, popover_origin, 2);
5453 if position != itertools::Position::Last {
5454 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
5455 draw_occluder(size.width, origin, window, cx);
5456 }
5457
5458 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5459 }
5460 }
5461
5462 fn place_popovers_below(
5463 hovered_point: gpui::Point<Pixels>,
5464 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5465 line_height: Pixels,
5466 window: &mut Window,
5467 cx: &mut App,
5468 ) {
5469 let mut current_y = hovered_point.y + line_height;
5470 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5471 let size = popover.size;
5472 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5473
5474 window.defer_draw(popover.element, popover_origin, 2);
5475 if position != itertools::Position::Last {
5476 let origin = point(popover_origin.x, popover_origin.y + size.height);
5477 draw_occluder(size.width, origin, window, cx);
5478 }
5479
5480 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5481 }
5482 }
5483
5484 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5485 context_menu_layout
5486 .as_ref()
5487 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5488 };
5489
5490 let can_place_above = {
5491 let mut bounds_above = Vec::new();
5492 let mut current_y = hovered_point.y;
5493 for popover in &measured_hover_popovers {
5494 let size = popover.size;
5495 let popover_origin = point(
5496 hovered_point.x + popover.horizontal_offset,
5497 current_y - size.height,
5498 );
5499 bounds_above.push(Bounds::new(popover_origin, size));
5500 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5501 }
5502 bounds_above
5503 .iter()
5504 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5505 };
5506
5507 let can_place_below = || {
5508 let mut bounds_below = Vec::new();
5509 let mut current_y = hovered_point.y + line_height;
5510 for popover in &measured_hover_popovers {
5511 let size = popover.size;
5512 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5513 bounds_below.push(Bounds::new(popover_origin, size));
5514 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5515 }
5516 bounds_below
5517 .iter()
5518 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5519 };
5520
5521 if can_place_above {
5522 // try placing above hovered point
5523 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5524 } else if can_place_below() {
5525 // try placing below hovered point
5526 place_popovers_below(
5527 hovered_point,
5528 measured_hover_popovers,
5529 line_height,
5530 window,
5531 cx,
5532 );
5533 } else {
5534 // try to place popovers around the context menu
5535 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5536 let total_width = measured_hover_popovers
5537 .iter()
5538 .map(|p| p.size.width)
5539 .max()
5540 .unwrap_or(Pixels::ZERO);
5541 let y_for_horizontal_positioning = if menu.y_flipped {
5542 menu.bounds.bottom() - overall_height
5543 } else {
5544 menu.bounds.top()
5545 };
5546 let possible_origins = vec![
5547 // left of context menu
5548 point(
5549 menu.bounds.left() - total_width - HOVER_POPOVER_GAP,
5550 y_for_horizontal_positioning,
5551 ),
5552 // right of context menu
5553 point(
5554 menu.bounds.right() + HOVER_POPOVER_GAP,
5555 y_for_horizontal_positioning,
5556 ),
5557 // top of context menu
5558 point(
5559 menu.bounds.left(),
5560 menu.bounds.top() - overall_height - HOVER_POPOVER_GAP,
5561 ),
5562 // bottom of context menu
5563 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5564 ];
5565 possible_origins.into_iter().find(|&origin| {
5566 Bounds::new(origin, size(total_width, overall_height))
5567 .is_contained_within(hitbox)
5568 })
5569 });
5570 if let Some(origin) = origin_surrounding_menu {
5571 let mut current_y = origin.y;
5572 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5573 let size = popover.size;
5574 let popover_origin = point(origin.x, current_y);
5575
5576 window.defer_draw(popover.element, popover_origin, 2);
5577 if position != itertools::Position::Last {
5578 let origin = point(popover_origin.x, popover_origin.y + size.height);
5579 draw_occluder(size.width, origin, window, cx);
5580 }
5581
5582 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5583 }
5584 } else {
5585 // fallback to existing above/below cursor logic
5586 // this might overlap menu or overflow in rare case
5587 if can_place_above {
5588 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5589 } else {
5590 place_popovers_below(
5591 hovered_point,
5592 measured_hover_popovers,
5593 line_height,
5594 window,
5595 cx,
5596 );
5597 }
5598 }
5599 }
5600 }
5601
5602 fn layout_word_diff_highlights(
5603 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5604 row_infos: &[RowInfo],
5605 start_row: DisplayRow,
5606 snapshot: &EditorSnapshot,
5607 highlighted_ranges: &mut Vec<(Range<DisplayPoint>, Hsla)>,
5608 cx: &mut App,
5609 ) {
5610 let colors = cx.theme().colors();
5611
5612 let word_highlights = display_hunks
5613 .into_iter()
5614 .filter_map(|(hunk, _)| match hunk {
5615 DisplayDiffHunk::Unfolded {
5616 word_diffs, status, ..
5617 } => Some((word_diffs, status)),
5618 _ => None,
5619 })
5620 .filter(|(_, status)| status.is_modified())
5621 .flat_map(|(word_diffs, _)| word_diffs)
5622 .filter_map(|word_diff| {
5623 let start_point = word_diff.start.to_display_point(&snapshot.display_snapshot);
5624 let end_point = word_diff.end.to_display_point(&snapshot.display_snapshot);
5625 let start_row_offset = start_point.row().0.saturating_sub(start_row.0) as usize;
5626
5627 row_infos
5628 .get(start_row_offset)
5629 .and_then(|row_info| row_info.diff_status)
5630 .and_then(|diff_status| {
5631 let background_color = match diff_status.kind {
5632 DiffHunkStatusKind::Added => colors.version_control_word_added,
5633 DiffHunkStatusKind::Deleted => colors.version_control_word_deleted,
5634 DiffHunkStatusKind::Modified => {
5635 debug_panic!("modified diff status for row info");
5636 return None;
5637 }
5638 };
5639 Some((start_point..end_point, background_color))
5640 })
5641 });
5642
5643 highlighted_ranges.extend(word_highlights);
5644 }
5645
5646 fn layout_diff_hunk_controls(
5647 &self,
5648 row_range: Range<DisplayRow>,
5649 row_infos: &[RowInfo],
5650 text_hitbox: &Hitbox,
5651 newest_cursor_position: Option<DisplayPoint>,
5652 line_height: Pixels,
5653 right_margin: Pixels,
5654 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5655 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5656 highlighted_rows: &BTreeMap<DisplayRow, LineHighlight>,
5657 editor: Entity<Editor>,
5658 window: &mut Window,
5659 cx: &mut App,
5660 ) -> (Vec<AnyElement>, Vec<(DisplayRow, Bounds<Pixels>)>) {
5661 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
5662 let hovered_diff_hunk_row = editor.read(cx).hovered_diff_hunk_row;
5663
5664 let mut controls = vec![];
5665 let mut control_bounds = vec![];
5666
5667 let active_positions = [
5668 hovered_diff_hunk_row.map(|row| DisplayPoint::new(row, 0)),
5669 newest_cursor_position,
5670 ];
5671
5672 for (hunk, _) in display_hunks {
5673 if let DisplayDiffHunk::Unfolded {
5674 display_row_range,
5675 multi_buffer_range,
5676 status,
5677 is_created_file,
5678 ..
5679 } = &hunk
5680 {
5681 if display_row_range.start < row_range.start
5682 || display_row_range.start >= row_range.end
5683 {
5684 continue;
5685 }
5686 if highlighted_rows
5687 .get(&display_row_range.start)
5688 .and_then(|highlight| highlight.type_id)
5689 .is_some_and(|type_id| {
5690 [
5691 TypeId::of::<ConflictsOuter>(),
5692 TypeId::of::<ConflictsOursMarker>(),
5693 TypeId::of::<ConflictsOurs>(),
5694 TypeId::of::<ConflictsTheirs>(),
5695 TypeId::of::<ConflictsTheirsMarker>(),
5696 ]
5697 .contains(&type_id)
5698 })
5699 {
5700 continue;
5701 }
5702 let row_ix = (display_row_range.start - row_range.start).0 as usize;
5703 if row_infos[row_ix].diff_status.is_none() {
5704 continue;
5705 }
5706 if row_infos[row_ix]
5707 .diff_status
5708 .is_some_and(|status| status.is_added())
5709 && !status.is_added()
5710 {
5711 continue;
5712 }
5713
5714 if active_positions
5715 .iter()
5716 .any(|p| p.is_some_and(|p| display_row_range.contains(&p.row())))
5717 {
5718 let y = (display_row_range.start.as_f64()
5719 * ScrollPixelOffset::from(line_height)
5720 + ScrollPixelOffset::from(text_hitbox.bounds.top())
5721 - scroll_pixel_position.y)
5722 .into();
5723
5724 let mut element = render_diff_hunk_controls(
5725 display_row_range.start.0,
5726 status,
5727 multi_buffer_range.clone(),
5728 *is_created_file,
5729 line_height,
5730 &editor,
5731 window,
5732 cx,
5733 );
5734 let size =
5735 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
5736
5737 let x = text_hitbox.bounds.right() - right_margin - px(10.) - size.width;
5738
5739 let bounds = Bounds::new(gpui::Point::new(x, y), size);
5740 control_bounds.push((display_row_range.start, bounds));
5741
5742 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
5743 element.prepaint(window, cx)
5744 });
5745 controls.push(element);
5746 }
5747 }
5748 }
5749
5750 (controls, control_bounds)
5751 }
5752
5753 fn layout_signature_help(
5754 &self,
5755 hitbox: &Hitbox,
5756 content_origin: gpui::Point<Pixels>,
5757 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5758 newest_selection_head: Option<DisplayPoint>,
5759 start_row: DisplayRow,
5760 line_layouts: &[LineWithInvisibles],
5761 line_height: Pixels,
5762 em_width: Pixels,
5763 context_menu_layout: Option<ContextMenuLayout>,
5764 window: &mut Window,
5765 cx: &mut App,
5766 ) {
5767 if !self.editor.focus_handle(cx).is_focused(window) {
5768 return;
5769 }
5770 let Some(newest_selection_head) = newest_selection_head else {
5771 return;
5772 };
5773
5774 let max_size = size(
5775 (120. * em_width) // Default size
5776 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5777 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5778 (16. * line_height) // Default size
5779 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5780 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5781 );
5782
5783 let maybe_element = self.editor.update(cx, |editor, cx| {
5784 if let Some(popover) = editor.signature_help_state.popover_mut() {
5785 let element = popover.render(max_size, window, cx);
5786 Some(element)
5787 } else {
5788 None
5789 }
5790 });
5791 let Some(mut element) = maybe_element else {
5792 return;
5793 };
5794
5795 let selection_row = newest_selection_head.row();
5796 let Some(cursor_row_layout) = (selection_row >= start_row)
5797 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
5798 .flatten()
5799 else {
5800 return;
5801 };
5802
5803 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
5804 - Pixels::from(scroll_pixel_position.x);
5805 let target_y = Pixels::from(
5806 selection_row.as_f64() * ScrollPixelOffset::from(line_height) - scroll_pixel_position.y,
5807 );
5808 let target_point = content_origin + point(target_x, target_y);
5809
5810 let actual_size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
5811
5812 let (popover_bounds_above, popover_bounds_below) = {
5813 let horizontal_offset = (hitbox.top_right().x
5814 - POPOVER_RIGHT_OFFSET
5815 - (target_point.x + actual_size.width))
5816 .min(Pixels::ZERO);
5817 let initial_x = target_point.x + horizontal_offset;
5818 (
5819 Bounds::new(
5820 point(initial_x, target_point.y - actual_size.height),
5821 actual_size,
5822 ),
5823 Bounds::new(
5824 point(initial_x, target_point.y + line_height + HOVER_POPOVER_GAP),
5825 actual_size,
5826 ),
5827 )
5828 };
5829
5830 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5831 context_menu_layout
5832 .as_ref()
5833 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5834 };
5835
5836 let final_origin = if popover_bounds_above.is_contained_within(hitbox)
5837 && !intersects_menu(popover_bounds_above)
5838 {
5839 // try placing above cursor
5840 popover_bounds_above.origin
5841 } else if popover_bounds_below.is_contained_within(hitbox)
5842 && !intersects_menu(popover_bounds_below)
5843 {
5844 // try placing below cursor
5845 popover_bounds_below.origin
5846 } else {
5847 // try surrounding context menu if exists
5848 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5849 let y_for_horizontal_positioning = if menu.y_flipped {
5850 menu.bounds.bottom() - actual_size.height
5851 } else {
5852 menu.bounds.top()
5853 };
5854 let possible_origins = vec![
5855 // left of context menu
5856 point(
5857 menu.bounds.left() - actual_size.width - HOVER_POPOVER_GAP,
5858 y_for_horizontal_positioning,
5859 ),
5860 // right of context menu
5861 point(
5862 menu.bounds.right() + HOVER_POPOVER_GAP,
5863 y_for_horizontal_positioning,
5864 ),
5865 // top of context menu
5866 point(
5867 menu.bounds.left(),
5868 menu.bounds.top() - actual_size.height - HOVER_POPOVER_GAP,
5869 ),
5870 // bottom of context menu
5871 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5872 ];
5873 possible_origins
5874 .into_iter()
5875 .find(|&origin| Bounds::new(origin, actual_size).is_contained_within(hitbox))
5876 });
5877 origin_surrounding_menu.unwrap_or_else(|| {
5878 // fallback to existing above/below cursor logic
5879 // this might overlap menu or overflow in rare case
5880 if popover_bounds_above.is_contained_within(hitbox) {
5881 popover_bounds_above.origin
5882 } else {
5883 popover_bounds_below.origin
5884 }
5885 })
5886 };
5887
5888 window.defer_draw(element, final_origin, 2);
5889 }
5890
5891 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5892 window.paint_layer(layout.hitbox.bounds, |window| {
5893 let scroll_top = layout.position_map.snapshot.scroll_position().y;
5894 let gutter_bg = cx.theme().colors().editor_gutter_background;
5895 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
5896 window.paint_quad(fill(
5897 layout.position_map.text_hitbox.bounds,
5898 self.style.background,
5899 ));
5900
5901 if matches!(
5902 layout.mode,
5903 EditorMode::Full { .. } | EditorMode::Minimap { .. }
5904 ) {
5905 let show_active_line_background = match layout.mode {
5906 EditorMode::Full {
5907 show_active_line_background,
5908 ..
5909 } => show_active_line_background,
5910 EditorMode::Minimap { .. } => true,
5911 _ => false,
5912 };
5913 let mut active_rows = layout.active_rows.iter().peekable();
5914 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
5915 let mut end_row = start_row.0;
5916 while active_rows
5917 .peek()
5918 .is_some_and(|(active_row, has_selection)| {
5919 active_row.0 == end_row + 1
5920 && has_selection.selection == contains_non_empty_selection.selection
5921 })
5922 {
5923 active_rows.next().unwrap();
5924 end_row += 1;
5925 }
5926
5927 if show_active_line_background && !contains_non_empty_selection.selection {
5928 let highlight_h_range =
5929 match layout.position_map.snapshot.current_line_highlight {
5930 CurrentLineHighlight::Gutter => Some(Range {
5931 start: layout.hitbox.left(),
5932 end: layout.gutter_hitbox.right(),
5933 }),
5934 CurrentLineHighlight::Line => Some(Range {
5935 start: layout.position_map.text_hitbox.bounds.left(),
5936 end: layout.position_map.text_hitbox.bounds.right(),
5937 }),
5938 CurrentLineHighlight::All => Some(Range {
5939 start: layout.hitbox.left(),
5940 end: layout.hitbox.right(),
5941 }),
5942 CurrentLineHighlight::None => None,
5943 };
5944 if let Some(range) = highlight_h_range {
5945 let active_line_bg = cx.theme().colors().editor_active_line_background;
5946 let bounds = Bounds {
5947 origin: point(
5948 range.start,
5949 layout.hitbox.origin.y
5950 + Pixels::from(
5951 (start_row.as_f64() - scroll_top)
5952 * ScrollPixelOffset::from(
5953 layout.position_map.line_height,
5954 ),
5955 ),
5956 ),
5957 size: size(
5958 range.end - range.start,
5959 layout.position_map.line_height
5960 * (end_row - start_row.0 + 1) as f32,
5961 ),
5962 };
5963 window.paint_quad(fill(bounds, active_line_bg));
5964 }
5965 }
5966 }
5967
5968 let mut paint_highlight = |highlight_row_start: DisplayRow,
5969 highlight_row_end: DisplayRow,
5970 highlight: crate::LineHighlight,
5971 edges| {
5972 let mut origin_x = layout.hitbox.left();
5973 let mut width = layout.hitbox.size.width;
5974 if !highlight.include_gutter {
5975 origin_x += layout.gutter_hitbox.size.width;
5976 width -= layout.gutter_hitbox.size.width;
5977 }
5978
5979 let origin = point(
5980 origin_x,
5981 layout.hitbox.origin.y
5982 + Pixels::from(
5983 (highlight_row_start.as_f64() - scroll_top)
5984 * ScrollPixelOffset::from(layout.position_map.line_height),
5985 ),
5986 );
5987 let size = size(
5988 width,
5989 layout.position_map.line_height
5990 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
5991 );
5992 let mut quad = fill(Bounds { origin, size }, highlight.background);
5993 if let Some(border_color) = highlight.border {
5994 quad.border_color = border_color;
5995 quad.border_widths = edges
5996 }
5997 window.paint_quad(quad);
5998 };
5999
6000 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
6001 None;
6002 for (&new_row, &new_background) in &layout.highlighted_rows {
6003 match &mut current_paint {
6004 &mut Some((current_background, ref mut current_range, mut edges)) => {
6005 let new_range_started = current_background != new_background
6006 || current_range.end.next_row() != new_row;
6007 if new_range_started {
6008 if current_range.end.next_row() == new_row {
6009 edges.bottom = px(0.);
6010 };
6011 paint_highlight(
6012 current_range.start,
6013 current_range.end,
6014 current_background,
6015 edges,
6016 );
6017 let edges = Edges {
6018 top: if current_range.end.next_row() != new_row {
6019 px(1.)
6020 } else {
6021 px(0.)
6022 },
6023 bottom: px(1.),
6024 ..Default::default()
6025 };
6026 current_paint = Some((new_background, new_row..new_row, edges));
6027 continue;
6028 } else {
6029 current_range.end = current_range.end.next_row();
6030 }
6031 }
6032 None => {
6033 let edges = Edges {
6034 top: px(1.),
6035 bottom: px(1.),
6036 ..Default::default()
6037 };
6038 current_paint = Some((new_background, new_row..new_row, edges))
6039 }
6040 };
6041 }
6042 if let Some((color, range, edges)) = current_paint {
6043 paint_highlight(range.start, range.end, color, edges);
6044 }
6045
6046 for (guide_x, active) in layout.wrap_guides.iter() {
6047 let color = if *active {
6048 cx.theme().colors().editor_active_wrap_guide
6049 } else {
6050 cx.theme().colors().editor_wrap_guide
6051 };
6052 window.paint_quad(fill(
6053 Bounds {
6054 origin: point(*guide_x, layout.position_map.text_hitbox.origin.y),
6055 size: size(px(1.), layout.position_map.text_hitbox.size.height),
6056 },
6057 color,
6058 ));
6059 }
6060 }
6061 })
6062 }
6063
6064 fn paint_indent_guides(
6065 &mut self,
6066 layout: &mut EditorLayout,
6067 window: &mut Window,
6068 cx: &mut App,
6069 ) {
6070 let Some(indent_guides) = &layout.indent_guides else {
6071 return;
6072 };
6073
6074 let faded_color = |color: Hsla, alpha: f32| {
6075 let mut faded = color;
6076 faded.a = alpha;
6077 faded
6078 };
6079
6080 for indent_guide in indent_guides {
6081 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
6082 let settings = &indent_guide.settings;
6083
6084 // TODO fixed for now, expose them through themes later
6085 const INDENT_AWARE_ALPHA: f32 = 0.2;
6086 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
6087 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
6088 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
6089
6090 let line_color = match (settings.coloring, indent_guide.active) {
6091 (IndentGuideColoring::Disabled, _) => None,
6092 (IndentGuideColoring::Fixed, false) => {
6093 Some(cx.theme().colors().editor_indent_guide)
6094 }
6095 (IndentGuideColoring::Fixed, true) => {
6096 Some(cx.theme().colors().editor_indent_guide_active)
6097 }
6098 (IndentGuideColoring::IndentAware, false) => {
6099 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
6100 }
6101 (IndentGuideColoring::IndentAware, true) => {
6102 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
6103 }
6104 };
6105
6106 let background_color = match (settings.background_coloring, indent_guide.active) {
6107 (IndentGuideBackgroundColoring::Disabled, _) => None,
6108 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
6109 indent_accent_colors,
6110 INDENT_AWARE_BACKGROUND_ALPHA,
6111 )),
6112 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
6113 indent_accent_colors,
6114 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
6115 )),
6116 };
6117
6118 let requested_line_width = if indent_guide.active {
6119 settings.active_line_width
6120 } else {
6121 settings.line_width
6122 }
6123 .clamp(1, 10);
6124 let mut line_indicator_width = 0.;
6125 if let Some(color) = line_color {
6126 window.paint_quad(fill(
6127 Bounds {
6128 origin: indent_guide.origin,
6129 size: size(px(requested_line_width as f32), indent_guide.length),
6130 },
6131 color,
6132 ));
6133 line_indicator_width = requested_line_width as f32;
6134 }
6135
6136 if let Some(color) = background_color {
6137 let width = indent_guide.single_indent_width - px(line_indicator_width);
6138 window.paint_quad(fill(
6139 Bounds {
6140 origin: point(
6141 indent_guide.origin.x + px(line_indicator_width),
6142 indent_guide.origin.y,
6143 ),
6144 size: size(width, indent_guide.length),
6145 },
6146 color,
6147 ));
6148 }
6149 }
6150 }
6151
6152 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6153 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
6154
6155 let line_height = layout.position_map.line_height;
6156 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
6157
6158 for line_layout in layout.line_numbers.values() {
6159 for LineNumberSegment {
6160 shaped_line,
6161 hitbox,
6162 } in &line_layout.segments
6163 {
6164 let Some(hitbox) = hitbox else {
6165 continue;
6166 };
6167
6168 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
6169 let color = cx.theme().colors().editor_hover_line_number;
6170
6171 let line = self.shape_line_number(shaped_line.text.clone(), color, window);
6172 line.paint(hitbox.origin, line_height, window, cx).log_err()
6173 } else {
6174 shaped_line
6175 .paint(hitbox.origin, line_height, window, cx)
6176 .log_err()
6177 }) else {
6178 continue;
6179 };
6180
6181 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
6182 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
6183 if is_singleton {
6184 window.set_cursor_style(CursorStyle::IBeam, hitbox);
6185 } else {
6186 window.set_cursor_style(CursorStyle::PointingHand, hitbox);
6187 }
6188 }
6189 }
6190 }
6191
6192 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6193 if layout.display_hunks.is_empty() {
6194 return;
6195 }
6196
6197 let line_height = layout.position_map.line_height;
6198 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6199 for (hunk, hitbox) in &layout.display_hunks {
6200 let hunk_to_paint = match hunk {
6201 DisplayDiffHunk::Folded { .. } => {
6202 let hunk_bounds = Self::diff_hunk_bounds(
6203 &layout.position_map.snapshot,
6204 line_height,
6205 layout.gutter_hitbox.bounds,
6206 hunk,
6207 );
6208 Some((
6209 hunk_bounds,
6210 cx.theme().colors().version_control_modified,
6211 Corners::all(px(0.)),
6212 DiffHunkStatus::modified_none(),
6213 ))
6214 }
6215 DisplayDiffHunk::Unfolded {
6216 status,
6217 display_row_range,
6218 ..
6219 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
6220 DiffHunkStatusKind::Added => (
6221 hunk_hitbox.bounds,
6222 cx.theme().colors().version_control_added,
6223 Corners::all(px(0.)),
6224 *status,
6225 ),
6226 DiffHunkStatusKind::Modified => (
6227 hunk_hitbox.bounds,
6228 cx.theme().colors().version_control_modified,
6229 Corners::all(px(0.)),
6230 *status,
6231 ),
6232 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
6233 hunk_hitbox.bounds,
6234 cx.theme().colors().version_control_deleted,
6235 Corners::all(px(0.)),
6236 *status,
6237 ),
6238 DiffHunkStatusKind::Deleted => (
6239 Bounds::new(
6240 point(
6241 hunk_hitbox.origin.x - hunk_hitbox.size.width,
6242 hunk_hitbox.origin.y,
6243 ),
6244 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
6245 ),
6246 cx.theme().colors().version_control_deleted,
6247 Corners::all(1. * line_height),
6248 *status,
6249 ),
6250 }),
6251 };
6252
6253 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
6254 // Flatten the background color with the editor color to prevent
6255 // elements below transparent hunks from showing through
6256 let flattened_background_color = cx
6257 .theme()
6258 .colors()
6259 .editor_background
6260 .blend(background_color);
6261
6262 if !Self::diff_hunk_hollow(status, cx) {
6263 window.paint_quad(quad(
6264 hunk_bounds,
6265 corner_radii,
6266 flattened_background_color,
6267 Edges::default(),
6268 transparent_black(),
6269 BorderStyle::default(),
6270 ));
6271 } else {
6272 let flattened_unstaged_background_color = cx
6273 .theme()
6274 .colors()
6275 .editor_background
6276 .blend(background_color.opacity(0.3));
6277
6278 window.paint_quad(quad(
6279 hunk_bounds,
6280 corner_radii,
6281 flattened_unstaged_background_color,
6282 Edges::all(px(1.0)),
6283 flattened_background_color,
6284 BorderStyle::Solid,
6285 ));
6286 }
6287 }
6288 }
6289 });
6290 }
6291
6292 fn gutter_strip_width(line_height: Pixels) -> Pixels {
6293 (0.275 * line_height).floor()
6294 }
6295
6296 fn diff_hunk_bounds(
6297 snapshot: &EditorSnapshot,
6298 line_height: Pixels,
6299 gutter_bounds: Bounds<Pixels>,
6300 hunk: &DisplayDiffHunk,
6301 ) -> Bounds<Pixels> {
6302 let scroll_position = snapshot.scroll_position();
6303 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
6304 let gutter_strip_width = Self::gutter_strip_width(line_height);
6305
6306 match hunk {
6307 DisplayDiffHunk::Folded { display_row, .. } => {
6308 let start_y = (display_row.as_f64() * ScrollPixelOffset::from(line_height)
6309 - scroll_top)
6310 .into();
6311 let end_y = start_y + line_height;
6312 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6313 let highlight_size = size(gutter_strip_width, end_y - start_y);
6314 Bounds::new(highlight_origin, highlight_size)
6315 }
6316 DisplayDiffHunk::Unfolded {
6317 display_row_range,
6318 status,
6319 ..
6320 } => {
6321 if status.is_deleted() && display_row_range.is_empty() {
6322 let row = display_row_range.start;
6323
6324 let offset = ScrollPixelOffset::from(line_height / 2.);
6325 let start_y =
6326 (row.as_f64() * ScrollPixelOffset::from(line_height) - offset - scroll_top)
6327 .into();
6328 let end_y = start_y + line_height;
6329
6330 let width = (0.35 * line_height).floor();
6331 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6332 let highlight_size = size(width, end_y - start_y);
6333 Bounds::new(highlight_origin, highlight_size)
6334 } else {
6335 let start_row = display_row_range.start;
6336 let end_row = display_row_range.end;
6337 // If we're in a multibuffer, row range span might include an
6338 // excerpt header, so if we were to draw the marker straight away,
6339 // the hunk might include the rows of that header.
6340 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
6341 // Instead, we simply check whether the range we're dealing with includes
6342 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
6343 let end_row_in_current_excerpt = snapshot
6344 .blocks_in_range(start_row..end_row)
6345 .find_map(|(start_row, block)| {
6346 if matches!(
6347 block,
6348 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
6349 ) {
6350 Some(start_row)
6351 } else {
6352 None
6353 }
6354 })
6355 .unwrap_or(end_row);
6356
6357 let start_y = (start_row.as_f64() * ScrollPixelOffset::from(line_height)
6358 - scroll_top)
6359 .into();
6360 let end_y = Pixels::from(
6361 end_row_in_current_excerpt.as_f64() * ScrollPixelOffset::from(line_height)
6362 - scroll_top,
6363 );
6364
6365 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6366 let highlight_size = size(gutter_strip_width, end_y - start_y);
6367 Bounds::new(highlight_origin, highlight_size)
6368 }
6369 }
6370 }
6371 }
6372
6373 fn paint_gutter_indicators(
6374 &self,
6375 layout: &mut EditorLayout,
6376 window: &mut Window,
6377 cx: &mut App,
6378 ) {
6379 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6380 window.with_element_namespace("crease_toggles", |window| {
6381 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
6382 crease_toggle.paint(window, cx);
6383 }
6384 });
6385
6386 window.with_element_namespace("expand_toggles", |window| {
6387 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
6388 expand_toggle.paint(window, cx);
6389 }
6390 });
6391
6392 for breakpoint in layout.breakpoints.iter_mut() {
6393 breakpoint.paint(window, cx);
6394 }
6395
6396 for test_indicator in layout.test_indicators.iter_mut() {
6397 test_indicator.paint(window, cx);
6398 }
6399 });
6400 }
6401
6402 fn paint_gutter_highlights(
6403 &self,
6404 layout: &mut EditorLayout,
6405 window: &mut Window,
6406 cx: &mut App,
6407 ) {
6408 for (_, hunk_hitbox) in &layout.display_hunks {
6409 if let Some(hunk_hitbox) = hunk_hitbox
6410 && !self
6411 .editor
6412 .read(cx)
6413 .buffer()
6414 .read(cx)
6415 .all_diff_hunks_expanded()
6416 {
6417 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
6418 }
6419 }
6420
6421 let show_git_gutter = layout
6422 .position_map
6423 .snapshot
6424 .show_git_diff_gutter
6425 .unwrap_or_else(|| {
6426 matches!(
6427 ProjectSettings::get_global(cx).git.git_gutter,
6428 GitGutterSetting::TrackedFiles
6429 )
6430 });
6431 if show_git_gutter {
6432 Self::paint_gutter_diff_hunks(layout, window, cx)
6433 }
6434
6435 let highlight_width = 0.275 * layout.position_map.line_height;
6436 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
6437 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6438 for (range, color) in &layout.highlighted_gutter_ranges {
6439 let start_row = if range.start.row() < layout.visible_display_row_range.start {
6440 layout.visible_display_row_range.start - DisplayRow(1)
6441 } else {
6442 range.start.row()
6443 };
6444 let end_row = if range.end.row() > layout.visible_display_row_range.end {
6445 layout.visible_display_row_range.end + DisplayRow(1)
6446 } else {
6447 range.end.row()
6448 };
6449
6450 let start_y = layout.gutter_hitbox.top()
6451 + Pixels::from(
6452 start_row.0 as f64
6453 * ScrollPixelOffset::from(layout.position_map.line_height)
6454 - layout.position_map.scroll_pixel_position.y,
6455 );
6456 let end_y = layout.gutter_hitbox.top()
6457 + Pixels::from(
6458 (end_row.0 + 1) as f64
6459 * ScrollPixelOffset::from(layout.position_map.line_height)
6460 - layout.position_map.scroll_pixel_position.y,
6461 );
6462 let bounds = Bounds::from_corners(
6463 point(layout.gutter_hitbox.left(), start_y),
6464 point(layout.gutter_hitbox.left() + highlight_width, end_y),
6465 );
6466 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
6467 }
6468 });
6469 }
6470
6471 fn paint_blamed_display_rows(
6472 &self,
6473 layout: &mut EditorLayout,
6474 window: &mut Window,
6475 cx: &mut App,
6476 ) {
6477 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
6478 return;
6479 };
6480
6481 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6482 for mut blame_element in blamed_display_rows.into_iter() {
6483 blame_element.paint(window, cx);
6484 }
6485 })
6486 }
6487
6488 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6489 window.with_content_mask(
6490 Some(ContentMask {
6491 bounds: layout.position_map.text_hitbox.bounds,
6492 }),
6493 |window| {
6494 let editor = self.editor.read(cx);
6495 if editor.mouse_cursor_hidden {
6496 window.set_window_cursor_style(CursorStyle::None);
6497 } else if let SelectionDragState::ReadyToDrag {
6498 mouse_down_time, ..
6499 } = &editor.selection_drag_state
6500 {
6501 let drag_and_drop_delay = Duration::from_millis(
6502 EditorSettings::get_global(cx)
6503 .drag_and_drop_selection
6504 .delay
6505 .0,
6506 );
6507 if mouse_down_time.elapsed() >= drag_and_drop_delay {
6508 window.set_cursor_style(
6509 CursorStyle::DragCopy,
6510 &layout.position_map.text_hitbox,
6511 );
6512 }
6513 } else if matches!(
6514 editor.selection_drag_state,
6515 SelectionDragState::Dragging { .. }
6516 ) {
6517 window
6518 .set_cursor_style(CursorStyle::DragCopy, &layout.position_map.text_hitbox);
6519 } else if editor
6520 .hovered_link_state
6521 .as_ref()
6522 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
6523 {
6524 window.set_cursor_style(
6525 CursorStyle::PointingHand,
6526 &layout.position_map.text_hitbox,
6527 );
6528 } else {
6529 window.set_cursor_style(CursorStyle::IBeam, &layout.position_map.text_hitbox);
6530 };
6531
6532 self.paint_lines_background(layout, window, cx);
6533 let invisible_display_ranges = self.paint_highlights(layout, window, cx);
6534 self.paint_document_colors(layout, window);
6535 self.paint_lines(&invisible_display_ranges, layout, window, cx);
6536 self.paint_redactions(layout, window);
6537 self.paint_cursors(layout, window, cx);
6538 self.paint_inline_diagnostics(layout, window, cx);
6539 self.paint_inline_blame(layout, window, cx);
6540 self.paint_inline_code_actions(layout, window, cx);
6541 self.paint_diff_hunk_controls(layout, window, cx);
6542 window.with_element_namespace("crease_trailers", |window| {
6543 for trailer in layout.crease_trailers.iter_mut().flatten() {
6544 trailer.element.paint(window, cx);
6545 }
6546 });
6547 },
6548 )
6549 }
6550
6551 fn paint_highlights(
6552 &mut self,
6553 layout: &mut EditorLayout,
6554 window: &mut Window,
6555 cx: &mut App,
6556 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
6557 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6558 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
6559 let line_end_overshoot = 0.15 * layout.position_map.line_height;
6560 for (range, color) in &layout.highlighted_ranges {
6561 self.paint_highlighted_range(
6562 range.clone(),
6563 true,
6564 *color,
6565 Pixels::ZERO,
6566 line_end_overshoot,
6567 layout,
6568 window,
6569 );
6570 }
6571
6572 let corner_radius = if EditorSettings::get_global(cx).rounded_selection {
6573 0.15 * layout.position_map.line_height
6574 } else {
6575 Pixels::ZERO
6576 };
6577
6578 for (player_color, selections) in &layout.selections {
6579 for selection in selections.iter() {
6580 self.paint_highlighted_range(
6581 selection.range.clone(),
6582 true,
6583 player_color.selection,
6584 corner_radius,
6585 corner_radius * 2.,
6586 layout,
6587 window,
6588 );
6589
6590 if selection.is_local && !selection.range.is_empty() {
6591 invisible_display_ranges.push(selection.range.clone());
6592 }
6593 }
6594 }
6595 invisible_display_ranges
6596 })
6597 }
6598
6599 fn paint_lines(
6600 &mut self,
6601 invisible_display_ranges: &[Range<DisplayPoint>],
6602 layout: &mut EditorLayout,
6603 window: &mut Window,
6604 cx: &mut App,
6605 ) {
6606 let whitespace_setting = self
6607 .editor
6608 .read(cx)
6609 .buffer
6610 .read(cx)
6611 .language_settings(cx)
6612 .show_whitespaces;
6613
6614 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6615 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6616 line_with_invisibles.draw(
6617 layout,
6618 row,
6619 layout.content_origin,
6620 whitespace_setting,
6621 invisible_display_ranges,
6622 window,
6623 cx,
6624 )
6625 }
6626
6627 for line_element in &mut layout.line_elements {
6628 line_element.paint(window, cx);
6629 }
6630 }
6631
6632 fn paint_sticky_headers(
6633 &mut self,
6634 layout: &mut EditorLayout,
6635 window: &mut Window,
6636 cx: &mut App,
6637 ) {
6638 let Some(mut sticky_headers) = layout.sticky_headers.take() else {
6639 return;
6640 };
6641
6642 if sticky_headers.lines.is_empty() {
6643 layout.sticky_headers = Some(sticky_headers);
6644 return;
6645 }
6646
6647 let whitespace_setting = self
6648 .editor
6649 .read(cx)
6650 .buffer
6651 .read(cx)
6652 .language_settings(cx)
6653 .show_whitespaces;
6654 sticky_headers.paint(layout, whitespace_setting, window, cx);
6655
6656 let sticky_header_hitboxes: Vec<Hitbox> = sticky_headers
6657 .lines
6658 .iter()
6659 .map(|line| line.hitbox.clone())
6660 .collect();
6661 let hovered_hitbox = sticky_header_hitboxes
6662 .iter()
6663 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6664
6665 window.on_mouse_event(move |_: &MouseMoveEvent, phase, window, _cx| {
6666 if !phase.bubble() {
6667 return;
6668 }
6669
6670 let current_hover = sticky_header_hitboxes
6671 .iter()
6672 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6673 if hovered_hitbox != current_hover {
6674 window.refresh();
6675 }
6676 });
6677
6678 for (line_index, line) in sticky_headers.lines.iter().enumerate() {
6679 let editor = self.editor.clone();
6680 let hitbox = line.hitbox.clone();
6681 let target_anchor = line.target_anchor;
6682 window.on_mouse_event(move |event: &MouseDownEvent, phase, window, cx| {
6683 if !phase.bubble() {
6684 return;
6685 }
6686
6687 if event.button == MouseButton::Left && hitbox.is_hovered(window) {
6688 editor.update(cx, |editor, cx| {
6689 editor.change_selections(
6690 SelectionEffects::scroll(Autoscroll::top_relative(line_index)),
6691 window,
6692 cx,
6693 |selections| selections.select_ranges([target_anchor..target_anchor]),
6694 );
6695 cx.stop_propagation();
6696 });
6697 }
6698 });
6699 }
6700
6701 let text_bounds = layout.position_map.text_hitbox.bounds;
6702 let border_top = text_bounds.top()
6703 + sticky_headers.lines.last().unwrap().offset
6704 + layout.position_map.line_height;
6705 let separator_height = px(1.);
6706 let border_bounds = Bounds::from_corners(
6707 point(layout.gutter_hitbox.bounds.left(), border_top),
6708 point(text_bounds.right(), border_top + separator_height),
6709 );
6710 window.paint_quad(fill(border_bounds, cx.theme().colors().border_variant));
6711
6712 layout.sticky_headers = Some(sticky_headers);
6713 }
6714
6715 fn paint_lines_background(
6716 &mut self,
6717 layout: &mut EditorLayout,
6718 window: &mut Window,
6719 cx: &mut App,
6720 ) {
6721 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6722 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6723 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
6724 }
6725 }
6726
6727 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
6728 if layout.redacted_ranges.is_empty() {
6729 return;
6730 }
6731
6732 let line_end_overshoot = layout.line_end_overshoot();
6733
6734 // A softer than perfect black
6735 let redaction_color = gpui::rgb(0x0e1111);
6736
6737 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6738 for range in layout.redacted_ranges.iter() {
6739 self.paint_highlighted_range(
6740 range.clone(),
6741 true,
6742 redaction_color.into(),
6743 Pixels::ZERO,
6744 line_end_overshoot,
6745 layout,
6746 window,
6747 );
6748 }
6749 });
6750 }
6751
6752 fn paint_document_colors(&self, layout: &mut EditorLayout, window: &mut Window) {
6753 let Some((colors_render_mode, image_colors)) = &layout.document_colors else {
6754 return;
6755 };
6756 if image_colors.is_empty()
6757 || colors_render_mode == &DocumentColorsRenderMode::None
6758 || colors_render_mode == &DocumentColorsRenderMode::Inlay
6759 {
6760 return;
6761 }
6762
6763 let line_end_overshoot = layout.line_end_overshoot();
6764
6765 for (range, color) in image_colors {
6766 match colors_render_mode {
6767 DocumentColorsRenderMode::Inlay | DocumentColorsRenderMode::None => return,
6768 DocumentColorsRenderMode::Background => {
6769 self.paint_highlighted_range(
6770 range.clone(),
6771 true,
6772 *color,
6773 Pixels::ZERO,
6774 line_end_overshoot,
6775 layout,
6776 window,
6777 );
6778 }
6779 DocumentColorsRenderMode::Border => {
6780 self.paint_highlighted_range(
6781 range.clone(),
6782 false,
6783 *color,
6784 Pixels::ZERO,
6785 line_end_overshoot,
6786 layout,
6787 window,
6788 );
6789 }
6790 }
6791 }
6792 }
6793
6794 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6795 for cursor in &mut layout.visible_cursors {
6796 cursor.paint(layout.content_origin, window, cx);
6797 }
6798 }
6799
6800 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6801 let Some(scrollbars_layout) = layout.scrollbars_layout.take() else {
6802 return;
6803 };
6804 let any_scrollbar_dragged = self.editor.read(cx).scroll_manager.any_scrollbar_dragged();
6805
6806 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
6807 let hitbox = &scrollbar_layout.hitbox;
6808 if scrollbars_layout.visible {
6809 let scrollbar_edges = match axis {
6810 ScrollbarAxis::Horizontal => Edges {
6811 top: Pixels::ZERO,
6812 right: Pixels::ZERO,
6813 bottom: Pixels::ZERO,
6814 left: Pixels::ZERO,
6815 },
6816 ScrollbarAxis::Vertical => Edges {
6817 top: Pixels::ZERO,
6818 right: Pixels::ZERO,
6819 bottom: Pixels::ZERO,
6820 left: ScrollbarLayout::BORDER_WIDTH,
6821 },
6822 };
6823
6824 window.paint_layer(hitbox.bounds, |window| {
6825 window.paint_quad(quad(
6826 hitbox.bounds,
6827 Corners::default(),
6828 cx.theme().colors().scrollbar_track_background,
6829 scrollbar_edges,
6830 cx.theme().colors().scrollbar_track_border,
6831 BorderStyle::Solid,
6832 ));
6833
6834 if axis == ScrollbarAxis::Vertical {
6835 let fast_markers =
6836 self.collect_fast_scrollbar_markers(layout, scrollbar_layout, cx);
6837 // Refresh slow scrollbar markers in the background. Below, we
6838 // paint whatever markers have already been computed.
6839 self.refresh_slow_scrollbar_markers(layout, scrollbar_layout, window, cx);
6840
6841 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
6842 for marker in markers.iter().chain(&fast_markers) {
6843 let mut marker = marker.clone();
6844 marker.bounds.origin += hitbox.origin;
6845 window.paint_quad(marker);
6846 }
6847 }
6848
6849 if let Some(thumb_bounds) = scrollbar_layout.thumb_bounds {
6850 let scrollbar_thumb_color = match scrollbar_layout.thumb_state {
6851 ScrollbarThumbState::Dragging => {
6852 cx.theme().colors().scrollbar_thumb_active_background
6853 }
6854 ScrollbarThumbState::Hovered => {
6855 cx.theme().colors().scrollbar_thumb_hover_background
6856 }
6857 ScrollbarThumbState::Idle => {
6858 cx.theme().colors().scrollbar_thumb_background
6859 }
6860 };
6861 window.paint_quad(quad(
6862 thumb_bounds,
6863 Corners::default(),
6864 scrollbar_thumb_color,
6865 scrollbar_edges,
6866 cx.theme().colors().scrollbar_thumb_border,
6867 BorderStyle::Solid,
6868 ));
6869
6870 if any_scrollbar_dragged {
6871 window.set_window_cursor_style(CursorStyle::Arrow);
6872 } else {
6873 window.set_cursor_style(CursorStyle::Arrow, hitbox);
6874 }
6875 }
6876 })
6877 }
6878 }
6879
6880 window.on_mouse_event({
6881 let editor = self.editor.clone();
6882 let scrollbars_layout = scrollbars_layout.clone();
6883
6884 let mut mouse_position = window.mouse_position();
6885 move |event: &MouseMoveEvent, phase, window, cx| {
6886 if phase == DispatchPhase::Capture {
6887 return;
6888 }
6889
6890 editor.update(cx, |editor, cx| {
6891 if let Some((scrollbar_layout, axis)) = event
6892 .pressed_button
6893 .filter(|button| *button == MouseButton::Left)
6894 .and(editor.scroll_manager.dragging_scrollbar_axis())
6895 .and_then(|axis| {
6896 scrollbars_layout
6897 .iter_scrollbars()
6898 .find(|(_, a)| *a == axis)
6899 })
6900 {
6901 let ScrollbarLayout {
6902 hitbox,
6903 text_unit_size,
6904 ..
6905 } = scrollbar_layout;
6906
6907 let old_position = mouse_position.along(axis);
6908 let new_position = event.position.along(axis);
6909 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
6910 .contains(&old_position)
6911 {
6912 let position = editor.scroll_position(cx).apply_along(axis, |p| {
6913 (p + ScrollOffset::from(
6914 (new_position - old_position) / *text_unit_size,
6915 ))
6916 .max(0.)
6917 });
6918 editor.set_scroll_position(position, window, cx);
6919 }
6920
6921 editor.scroll_manager.show_scrollbars(window, cx);
6922 cx.stop_propagation();
6923 } else if let Some((layout, axis)) = scrollbars_layout
6924 .get_hovered_axis(window)
6925 .filter(|_| !event.dragging())
6926 {
6927 if layout.thumb_hovered(&event.position) {
6928 editor
6929 .scroll_manager
6930 .set_hovered_scroll_thumb_axis(axis, cx);
6931 } else {
6932 editor.scroll_manager.reset_scrollbar_state(cx);
6933 }
6934
6935 editor.scroll_manager.show_scrollbars(window, cx);
6936 } else {
6937 editor.scroll_manager.reset_scrollbar_state(cx);
6938 }
6939
6940 mouse_position = event.position;
6941 })
6942 }
6943 });
6944
6945 if any_scrollbar_dragged {
6946 window.on_mouse_event({
6947 let editor = self.editor.clone();
6948 move |_: &MouseUpEvent, phase, window, cx| {
6949 if phase == DispatchPhase::Capture {
6950 return;
6951 }
6952
6953 editor.update(cx, |editor, cx| {
6954 if let Some((_, axis)) = scrollbars_layout.get_hovered_axis(window) {
6955 editor
6956 .scroll_manager
6957 .set_hovered_scroll_thumb_axis(axis, cx);
6958 } else {
6959 editor.scroll_manager.reset_scrollbar_state(cx);
6960 }
6961 cx.stop_propagation();
6962 });
6963 }
6964 });
6965 } else {
6966 window.on_mouse_event({
6967 let editor = self.editor.clone();
6968
6969 move |event: &MouseDownEvent, phase, window, cx| {
6970 if phase == DispatchPhase::Capture {
6971 return;
6972 }
6973 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
6974 else {
6975 return;
6976 };
6977
6978 let ScrollbarLayout {
6979 hitbox,
6980 visible_range,
6981 text_unit_size,
6982 thumb_bounds,
6983 ..
6984 } = scrollbar_layout;
6985
6986 let Some(thumb_bounds) = thumb_bounds else {
6987 return;
6988 };
6989
6990 editor.update(cx, |editor, cx| {
6991 editor
6992 .scroll_manager
6993 .set_dragged_scroll_thumb_axis(axis, cx);
6994
6995 let event_position = event.position.along(axis);
6996
6997 if event_position < thumb_bounds.origin.along(axis)
6998 || thumb_bounds.bottom_right().along(axis) < event_position
6999 {
7000 let center_position = ((event_position - hitbox.origin.along(axis))
7001 / *text_unit_size)
7002 .round() as u32;
7003 let start_position = center_position.saturating_sub(
7004 (visible_range.end - visible_range.start) as u32 / 2,
7005 );
7006
7007 let position = editor
7008 .scroll_position(cx)
7009 .apply_along(axis, |_| start_position as ScrollOffset);
7010
7011 editor.set_scroll_position(position, window, cx);
7012 } else {
7013 editor.scroll_manager.show_scrollbars(window, cx);
7014 }
7015
7016 cx.stop_propagation();
7017 });
7018 }
7019 });
7020 }
7021 }
7022
7023 fn collect_fast_scrollbar_markers(
7024 &self,
7025 layout: &EditorLayout,
7026 scrollbar_layout: &ScrollbarLayout,
7027 cx: &mut App,
7028 ) -> Vec<PaintQuad> {
7029 const LIMIT: usize = 100;
7030 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
7031 return vec![];
7032 }
7033 let cursor_ranges = layout
7034 .cursors
7035 .iter()
7036 .map(|(point, color)| ColoredRange {
7037 start: point.row(),
7038 end: point.row(),
7039 color: *color,
7040 })
7041 .collect_vec();
7042 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
7043 }
7044
7045 fn refresh_slow_scrollbar_markers(
7046 &self,
7047 layout: &EditorLayout,
7048 scrollbar_layout: &ScrollbarLayout,
7049 window: &mut Window,
7050 cx: &mut App,
7051 ) {
7052 self.editor.update(cx, |editor, cx| {
7053 if editor.buffer_kind(cx) != ItemBufferKind::Singleton
7054 || !editor
7055 .scrollbar_marker_state
7056 .should_refresh(scrollbar_layout.hitbox.size)
7057 {
7058 return;
7059 }
7060
7061 let scrollbar_layout = scrollbar_layout.clone();
7062 let background_highlights = editor.background_highlights.clone();
7063 let snapshot = layout.position_map.snapshot.clone();
7064 let theme = cx.theme().clone();
7065 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
7066
7067 editor.scrollbar_marker_state.dirty = false;
7068 editor.scrollbar_marker_state.pending_refresh =
7069 Some(cx.spawn_in(window, async move |editor, cx| {
7070 let scrollbar_size = scrollbar_layout.hitbox.size;
7071 let scrollbar_markers = cx
7072 .background_spawn(async move {
7073 let max_point = snapshot.display_snapshot.buffer_snapshot().max_point();
7074 let mut marker_quads = Vec::new();
7075 if scrollbar_settings.git_diff {
7076 let marker_row_ranges =
7077 snapshot.buffer_snapshot().diff_hunks().map(|hunk| {
7078 let start_display_row =
7079 MultiBufferPoint::new(hunk.row_range.start.0, 0)
7080 .to_display_point(&snapshot.display_snapshot)
7081 .row();
7082 let mut end_display_row =
7083 MultiBufferPoint::new(hunk.row_range.end.0, 0)
7084 .to_display_point(&snapshot.display_snapshot)
7085 .row();
7086 if end_display_row != start_display_row {
7087 end_display_row.0 -= 1;
7088 }
7089 let color = match &hunk.status().kind {
7090 DiffHunkStatusKind::Added => {
7091 theme.colors().version_control_added
7092 }
7093 DiffHunkStatusKind::Modified => {
7094 theme.colors().version_control_modified
7095 }
7096 DiffHunkStatusKind::Deleted => {
7097 theme.colors().version_control_deleted
7098 }
7099 };
7100 ColoredRange {
7101 start: start_display_row,
7102 end: end_display_row,
7103 color,
7104 }
7105 });
7106
7107 marker_quads.extend(
7108 scrollbar_layout
7109 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
7110 );
7111 }
7112
7113 for (background_highlight_id, (_, background_ranges)) in
7114 background_highlights.iter()
7115 {
7116 let is_search_highlights = *background_highlight_id
7117 == HighlightKey::Type(TypeId::of::<BufferSearchHighlights>());
7118 let is_text_highlights = *background_highlight_id
7119 == HighlightKey::Type(TypeId::of::<SelectedTextHighlight>());
7120 let is_symbol_occurrences = *background_highlight_id
7121 == HighlightKey::Type(TypeId::of::<DocumentHighlightRead>())
7122 || *background_highlight_id
7123 == HighlightKey::Type(
7124 TypeId::of::<DocumentHighlightWrite>(),
7125 );
7126 if (is_search_highlights && scrollbar_settings.search_results)
7127 || (is_text_highlights && scrollbar_settings.selected_text)
7128 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
7129 {
7130 let mut color = theme.status().info;
7131 if is_symbol_occurrences {
7132 color.fade_out(0.5);
7133 }
7134 let marker_row_ranges = background_ranges.iter().map(|range| {
7135 let display_start = range
7136 .start
7137 .to_display_point(&snapshot.display_snapshot);
7138 let display_end =
7139 range.end.to_display_point(&snapshot.display_snapshot);
7140 ColoredRange {
7141 start: display_start.row(),
7142 end: display_end.row(),
7143 color,
7144 }
7145 });
7146 marker_quads.extend(
7147 scrollbar_layout
7148 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
7149 );
7150 }
7151 }
7152
7153 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
7154 let diagnostics = snapshot
7155 .buffer_snapshot()
7156 .diagnostics_in_range::<Point>(Point::zero()..max_point)
7157 // Don't show diagnostics the user doesn't care about
7158 .filter(|diagnostic| {
7159 match (
7160 scrollbar_settings.diagnostics,
7161 diagnostic.diagnostic.severity,
7162 ) {
7163 (ScrollbarDiagnostics::All, _) => true,
7164 (
7165 ScrollbarDiagnostics::Error,
7166 lsp::DiagnosticSeverity::ERROR,
7167 ) => true,
7168 (
7169 ScrollbarDiagnostics::Warning,
7170 lsp::DiagnosticSeverity::ERROR
7171 | lsp::DiagnosticSeverity::WARNING,
7172 ) => true,
7173 (
7174 ScrollbarDiagnostics::Information,
7175 lsp::DiagnosticSeverity::ERROR
7176 | lsp::DiagnosticSeverity::WARNING
7177 | lsp::DiagnosticSeverity::INFORMATION,
7178 ) => true,
7179 (_, _) => false,
7180 }
7181 })
7182 // We want to sort by severity, in order to paint the most severe diagnostics last.
7183 .sorted_by_key(|diagnostic| {
7184 std::cmp::Reverse(diagnostic.diagnostic.severity)
7185 });
7186
7187 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
7188 let start_display = diagnostic
7189 .range
7190 .start
7191 .to_display_point(&snapshot.display_snapshot);
7192 let end_display = diagnostic
7193 .range
7194 .end
7195 .to_display_point(&snapshot.display_snapshot);
7196 let color = match diagnostic.diagnostic.severity {
7197 lsp::DiagnosticSeverity::ERROR => theme.status().error,
7198 lsp::DiagnosticSeverity::WARNING => theme.status().warning,
7199 lsp::DiagnosticSeverity::INFORMATION => theme.status().info,
7200 _ => theme.status().hint,
7201 };
7202 ColoredRange {
7203 start: start_display.row(),
7204 end: end_display.row(),
7205 color,
7206 }
7207 });
7208 marker_quads.extend(
7209 scrollbar_layout
7210 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
7211 );
7212 }
7213
7214 Arc::from(marker_quads)
7215 })
7216 .await;
7217
7218 editor.update(cx, |editor, cx| {
7219 editor.scrollbar_marker_state.markers = scrollbar_markers;
7220 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
7221 editor.scrollbar_marker_state.pending_refresh = None;
7222 cx.notify();
7223 })?;
7224
7225 Ok(())
7226 }));
7227 });
7228 }
7229
7230 fn paint_highlighted_range(
7231 &self,
7232 range: Range<DisplayPoint>,
7233 fill: bool,
7234 color: Hsla,
7235 corner_radius: Pixels,
7236 line_end_overshoot: Pixels,
7237 layout: &EditorLayout,
7238 window: &mut Window,
7239 ) {
7240 let start_row = layout.visible_display_row_range.start;
7241 let end_row = layout.visible_display_row_range.end;
7242 if range.start != range.end {
7243 let row_range = if range.end.column() == 0 {
7244 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
7245 } else {
7246 cmp::max(range.start.row(), start_row)
7247 ..cmp::min(range.end.row().next_row(), end_row)
7248 };
7249
7250 let highlighted_range = HighlightedRange {
7251 color,
7252 line_height: layout.position_map.line_height,
7253 corner_radius,
7254 start_y: layout.content_origin.y
7255 + Pixels::from(
7256 (row_range.start.as_f64() - layout.position_map.scroll_position.y)
7257 * ScrollOffset::from(layout.position_map.line_height),
7258 ),
7259 lines: row_range
7260 .iter_rows()
7261 .map(|row| {
7262 let line_layout =
7263 &layout.position_map.line_layouts[row.minus(start_row) as usize];
7264 HighlightedRangeLine {
7265 start_x: if row == range.start.row() {
7266 layout.content_origin.x
7267 + Pixels::from(
7268 ScrollPixelOffset::from(
7269 line_layout.x_for_index(range.start.column() as usize),
7270 ) - layout.position_map.scroll_pixel_position.x,
7271 )
7272 } else {
7273 layout.content_origin.x
7274 - Pixels::from(layout.position_map.scroll_pixel_position.x)
7275 },
7276 end_x: if row == range.end.row() {
7277 layout.content_origin.x
7278 + Pixels::from(
7279 ScrollPixelOffset::from(
7280 line_layout.x_for_index(range.end.column() as usize),
7281 ) - layout.position_map.scroll_pixel_position.x,
7282 )
7283 } else {
7284 Pixels::from(
7285 ScrollPixelOffset::from(
7286 layout.content_origin.x
7287 + line_layout.width
7288 + line_end_overshoot,
7289 ) - layout.position_map.scroll_pixel_position.x,
7290 )
7291 },
7292 }
7293 })
7294 .collect(),
7295 };
7296
7297 highlighted_range.paint(fill, layout.position_map.text_hitbox.bounds, window);
7298 }
7299 }
7300
7301 fn paint_inline_diagnostics(
7302 &mut self,
7303 layout: &mut EditorLayout,
7304 window: &mut Window,
7305 cx: &mut App,
7306 ) {
7307 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
7308 inline_diagnostic.1.paint(window, cx);
7309 }
7310 }
7311
7312 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7313 if let Some(mut blame_layout) = layout.inline_blame_layout.take() {
7314 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7315 blame_layout.element.paint(window, cx);
7316 })
7317 }
7318 }
7319
7320 fn paint_inline_code_actions(
7321 &mut self,
7322 layout: &mut EditorLayout,
7323 window: &mut Window,
7324 cx: &mut App,
7325 ) {
7326 if let Some(mut inline_code_actions) = layout.inline_code_actions.take() {
7327 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7328 inline_code_actions.paint(window, cx);
7329 })
7330 }
7331 }
7332
7333 fn paint_diff_hunk_controls(
7334 &mut self,
7335 layout: &mut EditorLayout,
7336 window: &mut Window,
7337 cx: &mut App,
7338 ) {
7339 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
7340 diff_hunk_control.paint(window, cx);
7341 }
7342 }
7343
7344 fn paint_minimap(&self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7345 if let Some(mut layout) = layout.minimap.take() {
7346 let minimap_hitbox = layout.thumb_layout.hitbox.clone();
7347 let dragging_minimap = self.editor.read(cx).scroll_manager.is_dragging_minimap();
7348
7349 window.paint_layer(layout.thumb_layout.hitbox.bounds, |window| {
7350 window.with_element_namespace("minimap", |window| {
7351 layout.minimap.paint(window, cx);
7352 if let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds {
7353 let minimap_thumb_color = match layout.thumb_layout.thumb_state {
7354 ScrollbarThumbState::Idle => {
7355 cx.theme().colors().minimap_thumb_background
7356 }
7357 ScrollbarThumbState::Hovered => {
7358 cx.theme().colors().minimap_thumb_hover_background
7359 }
7360 ScrollbarThumbState::Dragging => {
7361 cx.theme().colors().minimap_thumb_active_background
7362 }
7363 };
7364 let minimap_thumb_border = match layout.thumb_border_style {
7365 MinimapThumbBorder::Full => Edges::all(ScrollbarLayout::BORDER_WIDTH),
7366 MinimapThumbBorder::LeftOnly => Edges {
7367 left: ScrollbarLayout::BORDER_WIDTH,
7368 ..Default::default()
7369 },
7370 MinimapThumbBorder::LeftOpen => Edges {
7371 right: ScrollbarLayout::BORDER_WIDTH,
7372 top: ScrollbarLayout::BORDER_WIDTH,
7373 bottom: ScrollbarLayout::BORDER_WIDTH,
7374 ..Default::default()
7375 },
7376 MinimapThumbBorder::RightOpen => Edges {
7377 left: ScrollbarLayout::BORDER_WIDTH,
7378 top: ScrollbarLayout::BORDER_WIDTH,
7379 bottom: ScrollbarLayout::BORDER_WIDTH,
7380 ..Default::default()
7381 },
7382 MinimapThumbBorder::None => Default::default(),
7383 };
7384
7385 window.paint_layer(minimap_hitbox.bounds, |window| {
7386 window.paint_quad(quad(
7387 thumb_bounds,
7388 Corners::default(),
7389 minimap_thumb_color,
7390 minimap_thumb_border,
7391 cx.theme().colors().minimap_thumb_border,
7392 BorderStyle::Solid,
7393 ));
7394 });
7395 }
7396 });
7397 });
7398
7399 if dragging_minimap {
7400 window.set_window_cursor_style(CursorStyle::Arrow);
7401 } else {
7402 window.set_cursor_style(CursorStyle::Arrow, &minimap_hitbox);
7403 }
7404
7405 let minimap_axis = ScrollbarAxis::Vertical;
7406 let pixels_per_line = Pixels::from(
7407 ScrollPixelOffset::from(minimap_hitbox.size.height) / layout.max_scroll_top,
7408 )
7409 .min(layout.minimap_line_height);
7410
7411 let mut mouse_position = window.mouse_position();
7412
7413 window.on_mouse_event({
7414 let editor = self.editor.clone();
7415
7416 let minimap_hitbox = minimap_hitbox.clone();
7417
7418 move |event: &MouseMoveEvent, phase, window, cx| {
7419 if phase == DispatchPhase::Capture {
7420 return;
7421 }
7422
7423 editor.update(cx, |editor, cx| {
7424 if event.pressed_button == Some(MouseButton::Left)
7425 && editor.scroll_manager.is_dragging_minimap()
7426 {
7427 let old_position = mouse_position.along(minimap_axis);
7428 let new_position = event.position.along(minimap_axis);
7429 if (minimap_hitbox.origin.along(minimap_axis)
7430 ..minimap_hitbox.bottom_right().along(minimap_axis))
7431 .contains(&old_position)
7432 {
7433 let position =
7434 editor.scroll_position(cx).apply_along(minimap_axis, |p| {
7435 (p + ScrollPixelOffset::from(
7436 (new_position - old_position) / pixels_per_line,
7437 ))
7438 .max(0.)
7439 });
7440
7441 editor.set_scroll_position(position, window, cx);
7442 }
7443 cx.stop_propagation();
7444 } else if minimap_hitbox.is_hovered(window) {
7445 editor.scroll_manager.set_is_hovering_minimap_thumb(
7446 !event.dragging()
7447 && layout
7448 .thumb_layout
7449 .thumb_bounds
7450 .is_some_and(|bounds| bounds.contains(&event.position)),
7451 cx,
7452 );
7453
7454 // Stop hover events from propagating to the
7455 // underlying editor if the minimap hitbox is hovered
7456 if !event.dragging() {
7457 cx.stop_propagation();
7458 }
7459 } else {
7460 editor.scroll_manager.hide_minimap_thumb(cx);
7461 }
7462 mouse_position = event.position;
7463 });
7464 }
7465 });
7466
7467 if dragging_minimap {
7468 window.on_mouse_event({
7469 let editor = self.editor.clone();
7470 move |event: &MouseUpEvent, phase, window, cx| {
7471 if phase == DispatchPhase::Capture {
7472 return;
7473 }
7474
7475 editor.update(cx, |editor, cx| {
7476 if minimap_hitbox.is_hovered(window) {
7477 editor.scroll_manager.set_is_hovering_minimap_thumb(
7478 layout
7479 .thumb_layout
7480 .thumb_bounds
7481 .is_some_and(|bounds| bounds.contains(&event.position)),
7482 cx,
7483 );
7484 } else {
7485 editor.scroll_manager.hide_minimap_thumb(cx);
7486 }
7487 cx.stop_propagation();
7488 });
7489 }
7490 });
7491 } else {
7492 window.on_mouse_event({
7493 let editor = self.editor.clone();
7494
7495 move |event: &MouseDownEvent, phase, window, cx| {
7496 if phase == DispatchPhase::Capture || !minimap_hitbox.is_hovered(window) {
7497 return;
7498 }
7499
7500 let event_position = event.position;
7501
7502 let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds else {
7503 return;
7504 };
7505
7506 editor.update(cx, |editor, cx| {
7507 if !thumb_bounds.contains(&event_position) {
7508 let click_position =
7509 event_position.relative_to(&minimap_hitbox.origin).y;
7510
7511 let top_position = (click_position
7512 - thumb_bounds.size.along(minimap_axis) / 2.0)
7513 .max(Pixels::ZERO);
7514
7515 let scroll_offset = (layout.minimap_scroll_top
7516 + ScrollPixelOffset::from(
7517 top_position / layout.minimap_line_height,
7518 ))
7519 .min(layout.max_scroll_top);
7520
7521 let scroll_position = editor
7522 .scroll_position(cx)
7523 .apply_along(minimap_axis, |_| scroll_offset);
7524 editor.set_scroll_position(scroll_position, window, cx);
7525 }
7526
7527 editor.scroll_manager.set_is_dragging_minimap(cx);
7528 cx.stop_propagation();
7529 });
7530 }
7531 });
7532 }
7533 }
7534 }
7535
7536 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7537 for mut block in layout.blocks.drain(..) {
7538 if block.overlaps_gutter {
7539 block.element.paint(window, cx);
7540 } else {
7541 let mut bounds = layout.hitbox.bounds;
7542 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
7543 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7544 block.element.paint(window, cx);
7545 })
7546 }
7547 }
7548 }
7549
7550 fn paint_edit_prediction_popover(
7551 &mut self,
7552 layout: &mut EditorLayout,
7553 window: &mut Window,
7554 cx: &mut App,
7555 ) {
7556 if let Some(edit_prediction_popover) = layout.edit_prediction_popover.as_mut() {
7557 edit_prediction_popover.paint(window, cx);
7558 }
7559 }
7560
7561 fn paint_mouse_context_menu(
7562 &mut self,
7563 layout: &mut EditorLayout,
7564 window: &mut Window,
7565 cx: &mut App,
7566 ) {
7567 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
7568 mouse_context_menu.paint(window, cx);
7569 }
7570 }
7571
7572 fn paint_scroll_wheel_listener(
7573 &mut self,
7574 layout: &EditorLayout,
7575 window: &mut Window,
7576 cx: &mut App,
7577 ) {
7578 window.on_mouse_event({
7579 let position_map = layout.position_map.clone();
7580 let editor = self.editor.clone();
7581 let hitbox = layout.hitbox.clone();
7582 let mut delta = ScrollDelta::default();
7583
7584 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
7585 // accidentally turn off their scrolling.
7586 let base_scroll_sensitivity =
7587 EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
7588
7589 // Use a minimum fast_scroll_sensitivity for same reason above
7590 let fast_scroll_sensitivity = EditorSettings::get_global(cx)
7591 .fast_scroll_sensitivity
7592 .max(0.01);
7593
7594 move |event: &ScrollWheelEvent, phase, window, cx| {
7595 let scroll_sensitivity = {
7596 if event.modifiers.alt {
7597 fast_scroll_sensitivity
7598 } else {
7599 base_scroll_sensitivity
7600 }
7601 };
7602
7603 if phase == DispatchPhase::Bubble && hitbox.should_handle_scroll(window) {
7604 delta = delta.coalesce(event.delta);
7605 editor.update(cx, |editor, cx| {
7606 let position_map: &PositionMap = &position_map;
7607
7608 let line_height = position_map.line_height;
7609 let max_glyph_advance = position_map.em_advance;
7610 let (delta, axis) = match delta {
7611 gpui::ScrollDelta::Pixels(mut pixels) => {
7612 //Trackpad
7613 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
7614 (pixels, axis)
7615 }
7616
7617 gpui::ScrollDelta::Lines(lines) => {
7618 //Not trackpad
7619 let pixels =
7620 point(lines.x * max_glyph_advance, lines.y * line_height);
7621 (pixels, None)
7622 }
7623 };
7624
7625 let current_scroll_position = position_map.snapshot.scroll_position();
7626 let x = (current_scroll_position.x
7627 * ScrollPixelOffset::from(max_glyph_advance)
7628 - ScrollPixelOffset::from(delta.x * scroll_sensitivity))
7629 / ScrollPixelOffset::from(max_glyph_advance);
7630 let y = (current_scroll_position.y * ScrollPixelOffset::from(line_height)
7631 - ScrollPixelOffset::from(delta.y * scroll_sensitivity))
7632 / ScrollPixelOffset::from(line_height);
7633 let mut scroll_position =
7634 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
7635 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
7636 if forbid_vertical_scroll {
7637 scroll_position.y = current_scroll_position.y;
7638 }
7639
7640 if scroll_position != current_scroll_position {
7641 editor.scroll(scroll_position, axis, window, cx);
7642 cx.stop_propagation();
7643 } else if y < 0. {
7644 // Due to clamping, we may fail to detect cases of overscroll to the top;
7645 // We want the scroll manager to get an update in such cases and detect the change of direction
7646 // on the next frame.
7647 cx.notify();
7648 }
7649 });
7650 }
7651 }
7652 });
7653 }
7654
7655 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
7656 if layout.mode.is_minimap() {
7657 return;
7658 }
7659
7660 self.paint_scroll_wheel_listener(layout, window, cx);
7661
7662 window.on_mouse_event({
7663 let position_map = layout.position_map.clone();
7664 let editor = self.editor.clone();
7665 let line_numbers = layout.line_numbers.clone();
7666
7667 move |event: &MouseDownEvent, phase, window, cx| {
7668 if phase == DispatchPhase::Bubble {
7669 match event.button {
7670 MouseButton::Left => editor.update(cx, |editor, cx| {
7671 let pending_mouse_down = editor
7672 .pending_mouse_down
7673 .get_or_insert_with(Default::default)
7674 .clone();
7675
7676 *pending_mouse_down.borrow_mut() = Some(event.clone());
7677
7678 Self::mouse_left_down(
7679 editor,
7680 event,
7681 &position_map,
7682 line_numbers.as_ref(),
7683 window,
7684 cx,
7685 );
7686 }),
7687 MouseButton::Right => editor.update(cx, |editor, cx| {
7688 Self::mouse_right_down(editor, event, &position_map, window, cx);
7689 }),
7690 MouseButton::Middle => editor.update(cx, |editor, cx| {
7691 Self::mouse_middle_down(editor, event, &position_map, window, cx);
7692 }),
7693 _ => {}
7694 };
7695 }
7696 }
7697 });
7698
7699 window.on_mouse_event({
7700 let editor = self.editor.clone();
7701 let position_map = layout.position_map.clone();
7702
7703 move |event: &MouseUpEvent, phase, window, cx| {
7704 if phase == DispatchPhase::Bubble {
7705 editor.update(cx, |editor, cx| {
7706 Self::mouse_up(editor, event, &position_map, window, cx)
7707 });
7708 }
7709 }
7710 });
7711
7712 window.on_mouse_event({
7713 let editor = self.editor.clone();
7714 let position_map = layout.position_map.clone();
7715 let mut captured_mouse_down = None;
7716
7717 move |event: &MouseUpEvent, phase, window, cx| match phase {
7718 // Clear the pending mouse down during the capture phase,
7719 // so that it happens even if another event handler stops
7720 // propagation.
7721 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
7722 let pending_mouse_down = editor
7723 .pending_mouse_down
7724 .get_or_insert_with(Default::default)
7725 .clone();
7726
7727 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
7728 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
7729 captured_mouse_down = pending_mouse_down.take();
7730 window.refresh();
7731 }
7732 }),
7733 // Fire click handlers during the bubble phase.
7734 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
7735 if let Some(mouse_down) = captured_mouse_down.take() {
7736 let event = ClickEvent::Mouse(MouseClickEvent {
7737 down: mouse_down,
7738 up: event.clone(),
7739 });
7740 Self::click(editor, &event, &position_map, window, cx);
7741 }
7742 }),
7743 }
7744 });
7745
7746 window.on_mouse_event({
7747 let position_map = layout.position_map.clone();
7748 let editor = self.editor.clone();
7749
7750 move |event: &MouseMoveEvent, phase, window, cx| {
7751 if phase == DispatchPhase::Bubble {
7752 editor.update(cx, |editor, cx| {
7753 if editor.hover_state.focused(window, cx) {
7754 return;
7755 }
7756 if event.pressed_button == Some(MouseButton::Left)
7757 || event.pressed_button == Some(MouseButton::Middle)
7758 {
7759 Self::mouse_dragged(editor, event, &position_map, window, cx)
7760 }
7761
7762 Self::mouse_moved(editor, event, &position_map, window, cx)
7763 });
7764 }
7765 }
7766 });
7767 }
7768
7769 fn column_pixels(&self, column: usize, window: &Window) -> Pixels {
7770 let style = &self.style;
7771 let font_size = style.text.font_size.to_pixels(window.rem_size());
7772 let layout = window.text_system().shape_line(
7773 SharedString::from(" ".repeat(column)),
7774 font_size,
7775 &[TextRun {
7776 len: column,
7777 font: style.text.font(),
7778 color: Hsla::default(),
7779 ..Default::default()
7780 }],
7781 None,
7782 );
7783
7784 layout.width
7785 }
7786
7787 fn max_line_number_width(&self, snapshot: &EditorSnapshot, window: &mut Window) -> Pixels {
7788 let digit_count = snapshot.widest_line_number().ilog10() + 1;
7789 self.column_pixels(digit_count as usize, window)
7790 }
7791
7792 fn shape_line_number(
7793 &self,
7794 text: SharedString,
7795 color: Hsla,
7796 window: &mut Window,
7797 ) -> ShapedLine {
7798 let run = TextRun {
7799 len: text.len(),
7800 font: self.style.text.font(),
7801 color,
7802 ..Default::default()
7803 };
7804 window.text_system().shape_line(
7805 text,
7806 self.style.text.font_size.to_pixels(window.rem_size()),
7807 &[run],
7808 None,
7809 )
7810 }
7811
7812 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
7813 let unstaged = status.has_secondary_hunk();
7814 let unstaged_hollow = matches!(
7815 ProjectSettings::get_global(cx).git.hunk_style,
7816 GitHunkStyleSetting::UnstagedHollow
7817 );
7818
7819 unstaged == unstaged_hollow
7820 }
7821
7822 #[cfg(debug_assertions)]
7823 fn layout_debug_ranges(
7824 selections: &mut Vec<(PlayerColor, Vec<SelectionLayout>)>,
7825 anchor_range: Range<Anchor>,
7826 display_snapshot: &DisplaySnapshot,
7827 cx: &App,
7828 ) {
7829 let theme = cx.theme();
7830 text::debug::GlobalDebugRanges::with_locked(|debug_ranges| {
7831 if debug_ranges.ranges.is_empty() {
7832 return;
7833 }
7834 let buffer_snapshot = &display_snapshot.buffer_snapshot();
7835 for (buffer, buffer_range, excerpt_id) in
7836 buffer_snapshot.range_to_buffer_ranges(anchor_range)
7837 {
7838 let buffer_range =
7839 buffer.anchor_after(buffer_range.start)..buffer.anchor_before(buffer_range.end);
7840 selections.extend(debug_ranges.ranges.iter().flat_map(|debug_range| {
7841 let player_color = theme
7842 .players()
7843 .color_for_participant(debug_range.occurrence_index as u32 + 1);
7844 debug_range.ranges.iter().filter_map(move |range| {
7845 if range.start.buffer_id != Some(buffer.remote_id()) {
7846 return None;
7847 }
7848 let clipped_start = range.start.max(&buffer_range.start, buffer);
7849 let clipped_end = range.end.min(&buffer_range.end, buffer);
7850 let range = buffer_snapshot
7851 .anchor_range_in_excerpt(excerpt_id, *clipped_start..*clipped_end)?;
7852 let start = range.start.to_display_point(display_snapshot);
7853 let end = range.end.to_display_point(display_snapshot);
7854 let selection_layout = SelectionLayout {
7855 head: start,
7856 range: start..end,
7857 cursor_shape: CursorShape::Bar,
7858 is_newest: false,
7859 is_local: false,
7860 active_rows: start.row()..end.row(),
7861 user_name: Some(SharedString::new(debug_range.value.clone())),
7862 };
7863 Some((player_color, vec![selection_layout]))
7864 })
7865 }));
7866 }
7867 });
7868 }
7869}
7870
7871fn file_status_label_color(file_status: Option<FileStatus>) -> Color {
7872 file_status.map_or(Color::Default, |status| {
7873 if status.is_conflicted() {
7874 Color::Conflict
7875 } else if status.is_modified() {
7876 Color::Modified
7877 } else if status.is_deleted() {
7878 Color::Disabled
7879 } else if status.is_created() {
7880 Color::Created
7881 } else {
7882 Color::Default
7883 }
7884 })
7885}
7886
7887fn header_jump_data(
7888 editor_snapshot: &EditorSnapshot,
7889 block_row_start: DisplayRow,
7890 height: u32,
7891 first_excerpt: &ExcerptInfo,
7892 latest_selection_anchors: &HashMap<BufferId, Anchor>,
7893) -> JumpData {
7894 let jump_target = if let Some(anchor) = latest_selection_anchors.get(&first_excerpt.buffer_id)
7895 && let Some(range) = editor_snapshot.context_range_for_excerpt(anchor.excerpt_id)
7896 && let Some(buffer) = editor_snapshot
7897 .buffer_snapshot()
7898 .buffer_for_excerpt(anchor.excerpt_id)
7899 {
7900 JumpTargetInExcerptInput {
7901 id: anchor.excerpt_id,
7902 buffer,
7903 excerpt_start_anchor: range.start,
7904 jump_anchor: anchor.text_anchor,
7905 }
7906 } else {
7907 JumpTargetInExcerptInput {
7908 id: first_excerpt.id,
7909 buffer: &first_excerpt.buffer,
7910 excerpt_start_anchor: first_excerpt.range.context.start,
7911 jump_anchor: first_excerpt.range.primary.start,
7912 }
7913 };
7914 header_jump_data_inner(editor_snapshot, block_row_start, height, &jump_target)
7915}
7916
7917struct JumpTargetInExcerptInput<'a> {
7918 id: ExcerptId,
7919 buffer: &'a language::BufferSnapshot,
7920 excerpt_start_anchor: text::Anchor,
7921 jump_anchor: text::Anchor,
7922}
7923
7924fn header_jump_data_inner(
7925 snapshot: &EditorSnapshot,
7926 block_row_start: DisplayRow,
7927 height: u32,
7928 for_excerpt: &JumpTargetInExcerptInput,
7929) -> JumpData {
7930 let buffer = &for_excerpt.buffer;
7931 let jump_position = language::ToPoint::to_point(&for_excerpt.jump_anchor, buffer);
7932 let excerpt_start = for_excerpt.excerpt_start_anchor;
7933 let rows_from_excerpt_start = if for_excerpt.jump_anchor == excerpt_start {
7934 0
7935 } else {
7936 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
7937 jump_position.row.saturating_sub(excerpt_start_point.row)
7938 };
7939
7940 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
7941 .saturating_sub(
7942 snapshot
7943 .scroll_anchor
7944 .scroll_position(&snapshot.display_snapshot)
7945 .y as u32,
7946 );
7947
7948 JumpData::MultiBufferPoint {
7949 excerpt_id: for_excerpt.id,
7950 anchor: for_excerpt.jump_anchor,
7951 position: jump_position,
7952 line_offset_from_top,
7953 }
7954}
7955
7956pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
7957
7958impl AcceptEditPredictionBinding {
7959 pub fn keystroke(&self) -> Option<&KeybindingKeystroke> {
7960 if let Some(binding) = self.0.as_ref() {
7961 match &binding.keystrokes() {
7962 [keystroke, ..] => Some(keystroke),
7963 _ => None,
7964 }
7965 } else {
7966 None
7967 }
7968 }
7969}
7970
7971fn prepaint_gutter_button(
7972 button: IconButton,
7973 row: DisplayRow,
7974 line_height: Pixels,
7975 gutter_dimensions: &GutterDimensions,
7976 scroll_position: gpui::Point<ScrollOffset>,
7977 gutter_hitbox: &Hitbox,
7978 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
7979 window: &mut Window,
7980 cx: &mut App,
7981) -> AnyElement {
7982 let mut button = button.into_any_element();
7983
7984 let available_space = size(
7985 AvailableSpace::MinContent,
7986 AvailableSpace::Definite(line_height),
7987 );
7988 let indicator_size = button.layout_as_root(available_space, window, cx);
7989
7990 let blame_width = gutter_dimensions.git_blame_entries_width;
7991 let gutter_width = display_hunks
7992 .binary_search_by(|(hunk, _)| match hunk {
7993 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
7994 DisplayDiffHunk::Unfolded {
7995 display_row_range, ..
7996 } => {
7997 if display_row_range.end <= row {
7998 Ordering::Less
7999 } else if display_row_range.start > row {
8000 Ordering::Greater
8001 } else {
8002 Ordering::Equal
8003 }
8004 }
8005 })
8006 .ok()
8007 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
8008 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
8009
8010 let mut x = left_offset;
8011 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
8012 - indicator_size.width
8013 - left_offset;
8014 x += available_width / 2.;
8015
8016 let mut y =
8017 Pixels::from((row.as_f64() - scroll_position.y) * ScrollPixelOffset::from(line_height));
8018 y += (line_height - indicator_size.height) / 2.;
8019
8020 button.prepaint_as_root(
8021 gutter_hitbox.origin + point(x, y),
8022 available_space,
8023 window,
8024 cx,
8025 );
8026 button
8027}
8028
8029fn render_inline_blame_entry(
8030 blame_entry: BlameEntry,
8031 style: &EditorStyle,
8032 cx: &mut App,
8033) -> Option<AnyElement> {
8034 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
8035 renderer.render_inline_blame_entry(&style.text, blame_entry, cx)
8036}
8037
8038fn render_blame_entry_popover(
8039 blame_entry: BlameEntry,
8040 scroll_handle: ScrollHandle,
8041 commit_message: Option<ParsedCommitMessage>,
8042 markdown: Entity<Markdown>,
8043 workspace: WeakEntity<Workspace>,
8044 blame: &Entity<GitBlame>,
8045 buffer: BufferId,
8046 window: &mut Window,
8047 cx: &mut App,
8048) -> Option<AnyElement> {
8049 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
8050 let blame = blame.read(cx);
8051 let repository = blame.repository(cx, buffer)?;
8052 renderer.render_blame_entry_popover(
8053 blame_entry,
8054 scroll_handle,
8055 commit_message,
8056 markdown,
8057 repository,
8058 workspace,
8059 window,
8060 cx,
8061 )
8062}
8063
8064fn render_blame_entry(
8065 ix: usize,
8066 blame: &Entity<GitBlame>,
8067 blame_entry: BlameEntry,
8068 style: &EditorStyle,
8069 last_used_color: &mut Option<(Hsla, Oid)>,
8070 editor: Entity<Editor>,
8071 workspace: Entity<Workspace>,
8072 buffer: BufferId,
8073 renderer: &dyn BlameRenderer,
8074 window: &mut Window,
8075 cx: &mut App,
8076) -> Option<AnyElement> {
8077 let index: u32 = blame_entry.sha.into();
8078 let mut sha_color = cx.theme().players().color_for_participant(index).cursor;
8079
8080 // If the last color we used is the same as the one we get for this line, but
8081 // the commit SHAs are different, then we try again to get a different color.
8082 if let Some((color, sha)) = *last_used_color
8083 && sha != blame_entry.sha
8084 && color == sha_color
8085 {
8086 sha_color = cx.theme().players().color_for_participant(index + 1).cursor;
8087 }
8088 last_used_color.replace((sha_color, blame_entry.sha));
8089
8090 let blame = blame.read(cx);
8091 let details = blame.details_for_entry(buffer, &blame_entry);
8092 let repository = blame.repository(cx, buffer)?;
8093 renderer.render_blame_entry(
8094 &style.text,
8095 blame_entry,
8096 details,
8097 repository,
8098 workspace.downgrade(),
8099 editor,
8100 ix,
8101 sha_color,
8102 window,
8103 cx,
8104 )
8105}
8106
8107#[derive(Debug)]
8108pub(crate) struct LineWithInvisibles {
8109 fragments: SmallVec<[LineFragment; 1]>,
8110 invisibles: Vec<Invisible>,
8111 len: usize,
8112 pub(crate) width: Pixels,
8113 font_size: Pixels,
8114}
8115
8116enum LineFragment {
8117 Text(ShapedLine),
8118 Element {
8119 id: ChunkRendererId,
8120 element: Option<AnyElement>,
8121 size: Size<Pixels>,
8122 len: usize,
8123 },
8124}
8125
8126impl fmt::Debug for LineFragment {
8127 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
8128 match self {
8129 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
8130 LineFragment::Element { size, len, .. } => f
8131 .debug_struct("Element")
8132 .field("size", size)
8133 .field("len", len)
8134 .finish(),
8135 }
8136 }
8137}
8138
8139impl LineWithInvisibles {
8140 fn from_chunks<'a>(
8141 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
8142 editor_style: &EditorStyle,
8143 max_line_len: usize,
8144 max_line_count: usize,
8145 editor_mode: &EditorMode,
8146 text_width: Pixels,
8147 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8148 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
8149 window: &mut Window,
8150 cx: &mut App,
8151 ) -> Vec<Self> {
8152 let text_style = &editor_style.text;
8153 let mut layouts = Vec::with_capacity(max_line_count);
8154 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
8155 let mut line = String::new();
8156 let mut invisibles = Vec::new();
8157 let mut width = Pixels::ZERO;
8158 let mut len = 0;
8159 let mut styles = Vec::new();
8160 let mut non_whitespace_added = false;
8161 let mut row = 0;
8162 let mut line_exceeded_max_len = false;
8163 let font_size = text_style.font_size.to_pixels(window.rem_size());
8164 let min_contrast = EditorSettings::get_global(cx).minimum_contrast_for_highlights;
8165
8166 let ellipsis = SharedString::from("β―");
8167
8168 for highlighted_chunk in chunks.chain([HighlightedChunk {
8169 text: "\n",
8170 style: None,
8171 is_tab: false,
8172 is_inlay: false,
8173 replacement: None,
8174 }]) {
8175 if let Some(replacement) = highlighted_chunk.replacement {
8176 if !line.is_empty() {
8177 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8178 let text_runs: &[TextRun] = if segments.is_empty() {
8179 &styles
8180 } else {
8181 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8182 };
8183 let shaped_line = window.text_system().shape_line(
8184 line.clone().into(),
8185 font_size,
8186 text_runs,
8187 None,
8188 );
8189 width += shaped_line.width;
8190 len += shaped_line.len;
8191 fragments.push(LineFragment::Text(shaped_line));
8192 line.clear();
8193 styles.clear();
8194 }
8195
8196 match replacement {
8197 ChunkReplacement::Renderer(renderer) => {
8198 let available_width = if renderer.constrain_width {
8199 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
8200 ellipsis.clone()
8201 } else {
8202 SharedString::from(Arc::from(highlighted_chunk.text))
8203 };
8204 let shaped_line = window.text_system().shape_line(
8205 chunk,
8206 font_size,
8207 &[text_style.to_run(highlighted_chunk.text.len())],
8208 None,
8209 );
8210 AvailableSpace::Definite(shaped_line.width)
8211 } else {
8212 AvailableSpace::MinContent
8213 };
8214
8215 let mut element = (renderer.render)(&mut ChunkRendererContext {
8216 context: cx,
8217 window,
8218 max_width: text_width,
8219 });
8220 let line_height = text_style.line_height_in_pixels(window.rem_size());
8221 let size = element.layout_as_root(
8222 size(available_width, AvailableSpace::Definite(line_height)),
8223 window,
8224 cx,
8225 );
8226
8227 width += size.width;
8228 len += highlighted_chunk.text.len();
8229 fragments.push(LineFragment::Element {
8230 id: renderer.id,
8231 element: Some(element),
8232 size,
8233 len: highlighted_chunk.text.len(),
8234 });
8235 }
8236 ChunkReplacement::Str(x) => {
8237 let text_style = if let Some(style) = highlighted_chunk.style {
8238 Cow::Owned(text_style.clone().highlight(style))
8239 } else {
8240 Cow::Borrowed(text_style)
8241 };
8242
8243 let run = TextRun {
8244 len: x.len(),
8245 font: text_style.font(),
8246 color: text_style.color,
8247 background_color: text_style.background_color,
8248 underline: text_style.underline,
8249 strikethrough: text_style.strikethrough,
8250 };
8251 let line_layout = window
8252 .text_system()
8253 .shape_line(x, font_size, &[run], None)
8254 .with_len(highlighted_chunk.text.len());
8255
8256 width += line_layout.width;
8257 len += highlighted_chunk.text.len();
8258 fragments.push(LineFragment::Text(line_layout))
8259 }
8260 }
8261 } else {
8262 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
8263 if ix > 0 {
8264 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8265 let text_runs = if segments.is_empty() {
8266 &styles
8267 } else {
8268 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8269 };
8270 let shaped_line = window.text_system().shape_line(
8271 line.clone().into(),
8272 font_size,
8273 text_runs,
8274 None,
8275 );
8276 width += shaped_line.width;
8277 len += shaped_line.len;
8278 fragments.push(LineFragment::Text(shaped_line));
8279 layouts.push(Self {
8280 width: mem::take(&mut width),
8281 len: mem::take(&mut len),
8282 fragments: mem::take(&mut fragments),
8283 invisibles: std::mem::take(&mut invisibles),
8284 font_size,
8285 });
8286
8287 line.clear();
8288 styles.clear();
8289 row += 1;
8290 line_exceeded_max_len = false;
8291 non_whitespace_added = false;
8292 if row == max_line_count {
8293 return layouts;
8294 }
8295 }
8296
8297 if !line_chunk.is_empty() && !line_exceeded_max_len {
8298 let text_style = if let Some(style) = highlighted_chunk.style {
8299 Cow::Owned(text_style.clone().highlight(style))
8300 } else {
8301 Cow::Borrowed(text_style)
8302 };
8303
8304 if line.len() + line_chunk.len() > max_line_len {
8305 let mut chunk_len = max_line_len - line.len();
8306 while !line_chunk.is_char_boundary(chunk_len) {
8307 chunk_len -= 1;
8308 }
8309 line_chunk = &line_chunk[..chunk_len];
8310 line_exceeded_max_len = true;
8311 }
8312
8313 styles.push(TextRun {
8314 len: line_chunk.len(),
8315 font: text_style.font(),
8316 color: text_style.color,
8317 background_color: text_style.background_color,
8318 underline: text_style.underline,
8319 strikethrough: text_style.strikethrough,
8320 });
8321
8322 if editor_mode.is_full() && !highlighted_chunk.is_inlay {
8323 // Line wrap pads its contents with fake whitespaces,
8324 // avoid printing them
8325 let is_soft_wrapped = is_row_soft_wrapped(row);
8326 if highlighted_chunk.is_tab {
8327 if non_whitespace_added || !is_soft_wrapped {
8328 invisibles.push(Invisible::Tab {
8329 line_start_offset: line.len(),
8330 line_end_offset: line.len() + line_chunk.len(),
8331 });
8332 }
8333 } else {
8334 invisibles.extend(line_chunk.char_indices().filter_map(
8335 |(index, c)| {
8336 let is_whitespace = c.is_whitespace();
8337 non_whitespace_added |= !is_whitespace;
8338 if is_whitespace
8339 && (non_whitespace_added || !is_soft_wrapped)
8340 {
8341 Some(Invisible::Whitespace {
8342 line_offset: line.len() + index,
8343 })
8344 } else {
8345 None
8346 }
8347 },
8348 ))
8349 }
8350 }
8351
8352 line.push_str(line_chunk);
8353 }
8354 }
8355 }
8356 }
8357
8358 layouts
8359 }
8360
8361 /// Takes text runs and non-overlapping left-to-right background ranges with color.
8362 /// Returns new text runs with adjusted contrast as per background ranges.
8363 fn split_runs_by_bg_segments(
8364 text_runs: &[TextRun],
8365 bg_segments: &[(Range<DisplayPoint>, Hsla)],
8366 min_contrast: f32,
8367 start_col_offset: usize,
8368 ) -> Vec<TextRun> {
8369 let mut output_runs: Vec<TextRun> = Vec::with_capacity(text_runs.len());
8370 let mut line_col = start_col_offset;
8371 let mut segment_ix = 0usize;
8372
8373 for text_run in text_runs.iter() {
8374 let run_start_col = line_col;
8375 let run_end_col = run_start_col + text_run.len;
8376 while segment_ix < bg_segments.len()
8377 && (bg_segments[segment_ix].0.end.column() as usize) <= run_start_col
8378 {
8379 segment_ix += 1;
8380 }
8381 let mut cursor_col = run_start_col;
8382 let mut local_segment_ix = segment_ix;
8383 while local_segment_ix < bg_segments.len() {
8384 let (range, segment_color) = &bg_segments[local_segment_ix];
8385 let segment_start_col = range.start.column() as usize;
8386 let segment_end_col = range.end.column() as usize;
8387 if segment_start_col >= run_end_col {
8388 break;
8389 }
8390 if segment_start_col > cursor_col {
8391 let span_len = segment_start_col - cursor_col;
8392 output_runs.push(TextRun {
8393 len: span_len,
8394 font: text_run.font.clone(),
8395 color: text_run.color,
8396 background_color: text_run.background_color,
8397 underline: text_run.underline,
8398 strikethrough: text_run.strikethrough,
8399 });
8400 cursor_col = segment_start_col;
8401 }
8402 let segment_slice_end_col = segment_end_col.min(run_end_col);
8403 if segment_slice_end_col > cursor_col {
8404 let new_text_color =
8405 ensure_minimum_contrast(text_run.color, *segment_color, min_contrast);
8406 output_runs.push(TextRun {
8407 len: segment_slice_end_col - cursor_col,
8408 font: text_run.font.clone(),
8409 color: new_text_color,
8410 background_color: text_run.background_color,
8411 underline: text_run.underline,
8412 strikethrough: text_run.strikethrough,
8413 });
8414 cursor_col = segment_slice_end_col;
8415 }
8416 if segment_end_col >= run_end_col {
8417 break;
8418 }
8419 local_segment_ix += 1;
8420 }
8421 if cursor_col < run_end_col {
8422 output_runs.push(TextRun {
8423 len: run_end_col - cursor_col,
8424 font: text_run.font.clone(),
8425 color: text_run.color,
8426 background_color: text_run.background_color,
8427 underline: text_run.underline,
8428 strikethrough: text_run.strikethrough,
8429 });
8430 }
8431 line_col = run_end_col;
8432 segment_ix = local_segment_ix;
8433 }
8434 output_runs
8435 }
8436
8437 fn prepaint(
8438 &mut self,
8439 line_height: Pixels,
8440 scroll_position: gpui::Point<ScrollOffset>,
8441 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
8442 row: DisplayRow,
8443 content_origin: gpui::Point<Pixels>,
8444 line_elements: &mut SmallVec<[AnyElement; 1]>,
8445 window: &mut Window,
8446 cx: &mut App,
8447 ) {
8448 let line_y = f32::from(line_height) * Pixels::from(row.as_f64() - scroll_position.y);
8449 self.prepaint_with_custom_offset(
8450 line_height,
8451 scroll_pixel_position,
8452 content_origin,
8453 line_y,
8454 line_elements,
8455 window,
8456 cx,
8457 );
8458 }
8459
8460 fn prepaint_with_custom_offset(
8461 &mut self,
8462 line_height: Pixels,
8463 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
8464 content_origin: gpui::Point<Pixels>,
8465 line_y: Pixels,
8466 line_elements: &mut SmallVec<[AnyElement; 1]>,
8467 window: &mut Window,
8468 cx: &mut App,
8469 ) {
8470 let mut fragment_origin =
8471 content_origin + gpui::point(Pixels::from(-scroll_pixel_position.x), line_y);
8472 for fragment in &mut self.fragments {
8473 match fragment {
8474 LineFragment::Text(line) => {
8475 fragment_origin.x += line.width;
8476 }
8477 LineFragment::Element { element, size, .. } => {
8478 let mut element = element
8479 .take()
8480 .expect("you can't prepaint LineWithInvisibles twice");
8481
8482 // Center the element vertically within the line.
8483 let mut element_origin = fragment_origin;
8484 element_origin.y += (line_height - size.height) / 2.;
8485 element.prepaint_at(element_origin, window, cx);
8486 line_elements.push(element);
8487
8488 fragment_origin.x += size.width;
8489 }
8490 }
8491 }
8492 }
8493
8494 fn draw(
8495 &self,
8496 layout: &EditorLayout,
8497 row: DisplayRow,
8498 content_origin: gpui::Point<Pixels>,
8499 whitespace_setting: ShowWhitespaceSetting,
8500 selection_ranges: &[Range<DisplayPoint>],
8501 window: &mut Window,
8502 cx: &mut App,
8503 ) {
8504 self.draw_with_custom_offset(
8505 layout,
8506 row,
8507 content_origin,
8508 layout.position_map.line_height
8509 * (row.as_f64() - layout.position_map.scroll_position.y) as f32,
8510 whitespace_setting,
8511 selection_ranges,
8512 window,
8513 cx,
8514 );
8515 }
8516
8517 fn draw_with_custom_offset(
8518 &self,
8519 layout: &EditorLayout,
8520 row: DisplayRow,
8521 content_origin: gpui::Point<Pixels>,
8522 line_y: Pixels,
8523 whitespace_setting: ShowWhitespaceSetting,
8524 selection_ranges: &[Range<DisplayPoint>],
8525 window: &mut Window,
8526 cx: &mut App,
8527 ) {
8528 let line_height = layout.position_map.line_height;
8529 let mut fragment_origin = content_origin
8530 + gpui::point(
8531 Pixels::from(-layout.position_map.scroll_pixel_position.x),
8532 line_y,
8533 );
8534
8535 for fragment in &self.fragments {
8536 match fragment {
8537 LineFragment::Text(line) => {
8538 line.paint(fragment_origin, line_height, window, cx)
8539 .log_err();
8540 fragment_origin.x += line.width;
8541 }
8542 LineFragment::Element { size, .. } => {
8543 fragment_origin.x += size.width;
8544 }
8545 }
8546 }
8547
8548 self.draw_invisibles(
8549 selection_ranges,
8550 layout,
8551 content_origin,
8552 line_y,
8553 row,
8554 line_height,
8555 whitespace_setting,
8556 window,
8557 cx,
8558 );
8559 }
8560
8561 fn draw_background(
8562 &self,
8563 layout: &EditorLayout,
8564 row: DisplayRow,
8565 content_origin: gpui::Point<Pixels>,
8566 window: &mut Window,
8567 cx: &mut App,
8568 ) {
8569 let line_height = layout.position_map.line_height;
8570 let line_y = line_height * (row.as_f64() - layout.position_map.scroll_position.y) as f32;
8571
8572 let mut fragment_origin = content_origin
8573 + gpui::point(
8574 Pixels::from(-layout.position_map.scroll_pixel_position.x),
8575 line_y,
8576 );
8577
8578 for fragment in &self.fragments {
8579 match fragment {
8580 LineFragment::Text(line) => {
8581 line.paint_background(fragment_origin, line_height, window, cx)
8582 .log_err();
8583 fragment_origin.x += line.width;
8584 }
8585 LineFragment::Element { size, .. } => {
8586 fragment_origin.x += size.width;
8587 }
8588 }
8589 }
8590 }
8591
8592 fn draw_invisibles(
8593 &self,
8594 selection_ranges: &[Range<DisplayPoint>],
8595 layout: &EditorLayout,
8596 content_origin: gpui::Point<Pixels>,
8597 line_y: Pixels,
8598 row: DisplayRow,
8599 line_height: Pixels,
8600 whitespace_setting: ShowWhitespaceSetting,
8601 window: &mut Window,
8602 cx: &mut App,
8603 ) {
8604 let extract_whitespace_info = |invisible: &Invisible| {
8605 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
8606 Invisible::Tab {
8607 line_start_offset,
8608 line_end_offset,
8609 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
8610 Invisible::Whitespace { line_offset } => {
8611 (*line_offset, line_offset + 1, &layout.space_invisible)
8612 }
8613 };
8614
8615 let x_offset: ScrollPixelOffset = self.x_for_index(token_offset).into();
8616 let invisible_offset: ScrollPixelOffset =
8617 ((layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0)
8618 .into();
8619 let origin = content_origin
8620 + gpui::point(
8621 Pixels::from(
8622 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
8623 ),
8624 line_y,
8625 );
8626
8627 (
8628 [token_offset, token_end_offset],
8629 Box::new(move |window: &mut Window, cx: &mut App| {
8630 invisible_symbol
8631 .paint(origin, line_height, window, cx)
8632 .log_err();
8633 }),
8634 )
8635 };
8636
8637 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
8638 match whitespace_setting {
8639 ShowWhitespaceSetting::None => (),
8640 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
8641 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
8642 let invisible_point = DisplayPoint::new(row, start as u32);
8643 if !selection_ranges
8644 .iter()
8645 .any(|region| region.start <= invisible_point && invisible_point < region.end)
8646 {
8647 return;
8648 }
8649
8650 paint(window, cx);
8651 }),
8652
8653 ShowWhitespaceSetting::Trailing => {
8654 let mut previous_start = self.len;
8655 for ([start, end], paint) in invisible_iter.rev() {
8656 if previous_start != end {
8657 break;
8658 }
8659 previous_start = start;
8660 paint(window, cx);
8661 }
8662 }
8663
8664 // For a whitespace to be on a boundary, any of the following conditions need to be met:
8665 // - It is a tab
8666 // - It is adjacent to an edge (start or end)
8667 // - It is adjacent to a whitespace (left or right)
8668 ShowWhitespaceSetting::Boundary => {
8669 // 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
8670 // the above cases.
8671 // Note: We zip in the original `invisibles` to check for tab equality
8672 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
8673 for (([start, end], paint), invisible) in
8674 invisible_iter.zip_eq(self.invisibles.iter())
8675 {
8676 let should_render = match (&last_seen, invisible) {
8677 (_, Invisible::Tab { .. }) => true,
8678 (Some((_, last_end, _)), _) => *last_end == start,
8679 _ => false,
8680 };
8681
8682 if should_render || start == 0 || end == self.len {
8683 paint(window, cx);
8684
8685 // Since we are scanning from the left, we will skip over the first available whitespace that is part
8686 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
8687 if let Some((should_render_last, last_end, paint_last)) = last_seen {
8688 // Note that we need to make sure that the last one is actually adjacent
8689 if !should_render_last && last_end == start {
8690 paint_last(window, cx);
8691 }
8692 }
8693 }
8694
8695 // Manually render anything within a selection
8696 let invisible_point = DisplayPoint::new(row, start as u32);
8697 if selection_ranges.iter().any(|region| {
8698 region.start <= invisible_point && invisible_point < region.end
8699 }) {
8700 paint(window, cx);
8701 }
8702
8703 last_seen = Some((should_render, end, paint));
8704 }
8705 }
8706 }
8707 }
8708
8709 pub fn x_for_index(&self, index: usize) -> Pixels {
8710 let mut fragment_start_x = Pixels::ZERO;
8711 let mut fragment_start_index = 0;
8712
8713 for fragment in &self.fragments {
8714 match fragment {
8715 LineFragment::Text(shaped_line) => {
8716 let fragment_end_index = fragment_start_index + shaped_line.len;
8717 if index < fragment_end_index {
8718 return fragment_start_x
8719 + shaped_line.x_for_index(index - fragment_start_index);
8720 }
8721 fragment_start_x += shaped_line.width;
8722 fragment_start_index = fragment_end_index;
8723 }
8724 LineFragment::Element { len, size, .. } => {
8725 let fragment_end_index = fragment_start_index + len;
8726 if index < fragment_end_index {
8727 return fragment_start_x;
8728 }
8729 fragment_start_x += size.width;
8730 fragment_start_index = fragment_end_index;
8731 }
8732 }
8733 }
8734
8735 fragment_start_x
8736 }
8737
8738 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
8739 let mut fragment_start_x = Pixels::ZERO;
8740 let mut fragment_start_index = 0;
8741
8742 for fragment in &self.fragments {
8743 match fragment {
8744 LineFragment::Text(shaped_line) => {
8745 let fragment_end_x = fragment_start_x + shaped_line.width;
8746 if x < fragment_end_x {
8747 return Some(
8748 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
8749 );
8750 }
8751 fragment_start_x = fragment_end_x;
8752 fragment_start_index += shaped_line.len;
8753 }
8754 LineFragment::Element { len, size, .. } => {
8755 let fragment_end_x = fragment_start_x + size.width;
8756 if x < fragment_end_x {
8757 return Some(fragment_start_index);
8758 }
8759 fragment_start_index += len;
8760 fragment_start_x = fragment_end_x;
8761 }
8762 }
8763 }
8764
8765 None
8766 }
8767
8768 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
8769 let mut fragment_start_index = 0;
8770
8771 for fragment in &self.fragments {
8772 match fragment {
8773 LineFragment::Text(shaped_line) => {
8774 let fragment_end_index = fragment_start_index + shaped_line.len;
8775 if index < fragment_end_index {
8776 return shaped_line.font_id_for_index(index - fragment_start_index);
8777 }
8778 fragment_start_index = fragment_end_index;
8779 }
8780 LineFragment::Element { len, .. } => {
8781 let fragment_end_index = fragment_start_index + len;
8782 if index < fragment_end_index {
8783 return None;
8784 }
8785 fragment_start_index = fragment_end_index;
8786 }
8787 }
8788 }
8789
8790 None
8791 }
8792}
8793
8794#[derive(Debug, Clone, Copy, PartialEq, Eq)]
8795enum Invisible {
8796 /// A tab character
8797 ///
8798 /// A tab character is internally represented by spaces (configured by the user's tab width)
8799 /// aligned to the nearest column, so it's necessary to store the start and end offset for
8800 /// adjacency checks.
8801 Tab {
8802 line_start_offset: usize,
8803 line_end_offset: usize,
8804 },
8805 Whitespace {
8806 line_offset: usize,
8807 },
8808}
8809
8810impl EditorElement {
8811 /// Returns the rem size to use when rendering the [`EditorElement`].
8812 ///
8813 /// This allows UI elements to scale based on the `buffer_font_size`.
8814 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
8815 match self.editor.read(cx).mode {
8816 EditorMode::Full {
8817 scale_ui_elements_with_buffer_font_size: true,
8818 ..
8819 }
8820 | EditorMode::Minimap { .. } => {
8821 let buffer_font_size = self.style.text.font_size;
8822 match buffer_font_size {
8823 AbsoluteLength::Pixels(pixels) => {
8824 let rem_size_scale = {
8825 // Our default UI font size is 14px on a 16px base scale.
8826 // This means the default UI font size is 0.875rems.
8827 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
8828
8829 // We then determine the delta between a single rem and the default font
8830 // size scale.
8831 let default_font_size_delta = 1. - default_font_size_scale;
8832
8833 // Finally, we add this delta to 1rem to get the scale factor that
8834 // should be used to scale up the UI.
8835 1. + default_font_size_delta
8836 };
8837
8838 Some(pixels * rem_size_scale)
8839 }
8840 AbsoluteLength::Rems(rems) => {
8841 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
8842 }
8843 }
8844 }
8845 // We currently use single-line and auto-height editors in UI contexts,
8846 // so we don't want to scale everything with the buffer font size, as it
8847 // ends up looking off.
8848 _ => None,
8849 }
8850 }
8851
8852 fn editor_with_selections(&self, cx: &App) -> Option<Entity<Editor>> {
8853 if let EditorMode::Minimap { parent } = self.editor.read(cx).mode() {
8854 parent.upgrade()
8855 } else {
8856 Some(self.editor.clone())
8857 }
8858 }
8859}
8860
8861#[derive(Default)]
8862pub struct EditorRequestLayoutState {
8863 // We use prepaint depth to limit the number of times prepaint is
8864 // called recursively. We need this so that we can update stale
8865 // data for e.g. block heights in block map.
8866 prepaint_depth: Rc<Cell<usize>>,
8867}
8868
8869impl EditorRequestLayoutState {
8870 // In ideal conditions we only need one more subsequent prepaint call for resize to take effect.
8871 // i.e. MAX_PREPAINT_DEPTH = 2, but since moving blocks inline (place_near), more lines from
8872 // below get exposed, and we end up querying blocks for those lines too in subsequent renders.
8873 // Setting MAX_PREPAINT_DEPTH = 3, passes all tests. Just to be on the safe side we set it to 5, so
8874 // that subsequent shrinking does not lead to incorrect block placing.
8875 const MAX_PREPAINT_DEPTH: usize = 5;
8876
8877 fn increment_prepaint_depth(&self) -> EditorPrepaintGuard {
8878 let depth = self.prepaint_depth.get();
8879 self.prepaint_depth.set(depth + 1);
8880 EditorPrepaintGuard {
8881 prepaint_depth: self.prepaint_depth.clone(),
8882 }
8883 }
8884
8885 fn can_prepaint(&self) -> bool {
8886 self.prepaint_depth.get() < Self::MAX_PREPAINT_DEPTH
8887 }
8888}
8889
8890struct EditorPrepaintGuard {
8891 prepaint_depth: Rc<Cell<usize>>,
8892}
8893
8894impl Drop for EditorPrepaintGuard {
8895 fn drop(&mut self) {
8896 let depth = self.prepaint_depth.get();
8897 self.prepaint_depth.set(depth.saturating_sub(1));
8898 }
8899}
8900
8901impl Element for EditorElement {
8902 type RequestLayoutState = EditorRequestLayoutState;
8903 type PrepaintState = EditorLayout;
8904
8905 fn id(&self) -> Option<ElementId> {
8906 None
8907 }
8908
8909 fn source_location(&self) -> Option<&'static core::panic::Location<'static>> {
8910 None
8911 }
8912
8913 fn request_layout(
8914 &mut self,
8915 _: Option<&GlobalElementId>,
8916 _inspector_id: Option<&gpui::InspectorElementId>,
8917 window: &mut Window,
8918 cx: &mut App,
8919 ) -> (gpui::LayoutId, Self::RequestLayoutState) {
8920 let rem_size = self.rem_size(cx);
8921 window.with_rem_size(rem_size, |window| {
8922 self.editor.update(cx, |editor, cx| {
8923 editor.set_style(self.style.clone(), window, cx);
8924
8925 let layout_id = match editor.mode {
8926 EditorMode::SingleLine => {
8927 let rem_size = window.rem_size();
8928 let height = self.style.text.line_height_in_pixels(rem_size);
8929 let mut style = Style::default();
8930 style.size.height = height.into();
8931 style.size.width = relative(1.).into();
8932 window.request_layout(style, None, cx)
8933 }
8934 EditorMode::AutoHeight {
8935 min_lines,
8936 max_lines,
8937 } => {
8938 let editor_handle = cx.entity();
8939 let max_line_number_width =
8940 self.max_line_number_width(&editor.snapshot(window, cx), window);
8941 window.request_measured_layout(
8942 Style::default(),
8943 move |known_dimensions, available_space, window, cx| {
8944 editor_handle
8945 .update(cx, |editor, cx| {
8946 compute_auto_height_layout(
8947 editor,
8948 min_lines,
8949 max_lines,
8950 max_line_number_width,
8951 known_dimensions,
8952 available_space.width,
8953 window,
8954 cx,
8955 )
8956 })
8957 .unwrap_or_default()
8958 },
8959 )
8960 }
8961 EditorMode::Minimap { .. } => {
8962 let mut style = Style::default();
8963 style.size.width = relative(1.).into();
8964 style.size.height = relative(1.).into();
8965 window.request_layout(style, None, cx)
8966 }
8967 EditorMode::Full {
8968 sizing_behavior, ..
8969 } => {
8970 let mut style = Style::default();
8971 style.size.width = relative(1.).into();
8972 if sizing_behavior == SizingBehavior::SizeByContent {
8973 let snapshot = editor.snapshot(window, cx);
8974 let line_height =
8975 self.style.text.line_height_in_pixels(window.rem_size());
8976 let scroll_height =
8977 (snapshot.max_point().row().next_row().0 as f32) * line_height;
8978 style.size.height = scroll_height.into();
8979 } else {
8980 style.size.height = relative(1.).into();
8981 }
8982 window.request_layout(style, None, cx)
8983 }
8984 };
8985
8986 (layout_id, EditorRequestLayoutState::default())
8987 })
8988 })
8989 }
8990
8991 fn prepaint(
8992 &mut self,
8993 _: Option<&GlobalElementId>,
8994 _inspector_id: Option<&gpui::InspectorElementId>,
8995 bounds: Bounds<Pixels>,
8996 request_layout: &mut Self::RequestLayoutState,
8997 window: &mut Window,
8998 cx: &mut App,
8999 ) -> Self::PrepaintState {
9000 let _prepaint_depth_guard = request_layout.increment_prepaint_depth();
9001 let text_style = TextStyleRefinement {
9002 font_size: Some(self.style.text.font_size),
9003 line_height: Some(self.style.text.line_height),
9004 ..Default::default()
9005 };
9006
9007 let is_minimap = self.editor.read(cx).mode.is_minimap();
9008 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
9009
9010 if !is_minimap {
9011 let focus_handle = self.editor.focus_handle(cx);
9012 window.set_view_id(self.editor.entity_id());
9013 window.set_focus_handle(&focus_handle, cx);
9014 }
9015
9016 let rem_size = self.rem_size(cx);
9017 window.with_rem_size(rem_size, |window| {
9018 window.with_text_style(Some(text_style), |window| {
9019 window.with_content_mask(Some(ContentMask { bounds }), |window| {
9020 let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| {
9021 (editor.snapshot(window, cx), editor.read_only(cx))
9022 });
9023 let style = &self.style;
9024
9025 let rem_size = window.rem_size();
9026 let font_id = window.text_system().resolve_font(&style.text.font());
9027 let font_size = style.text.font_size.to_pixels(rem_size);
9028 let line_height = style.text.line_height_in_pixels(rem_size);
9029 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
9030 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
9031 let glyph_grid_cell = size(em_advance, line_height);
9032
9033 let gutter_dimensions = snapshot
9034 .gutter_dimensions(
9035 font_id,
9036 font_size,
9037 self.max_line_number_width(&snapshot, window),
9038 cx,
9039 )
9040 .or_else(|| {
9041 self.editor.read(cx).offset_content.then(|| {
9042 GutterDimensions::default_with_margin(font_id, font_size, cx)
9043 })
9044 })
9045 .unwrap_or_default();
9046 let text_width = bounds.size.width - gutter_dimensions.width;
9047
9048 let settings = EditorSettings::get_global(cx);
9049 let scrollbars_shown = settings.scrollbar.show != ShowScrollbar::Never;
9050 let vertical_scrollbar_width = (scrollbars_shown
9051 && settings.scrollbar.axes.vertical
9052 && self.editor.read(cx).show_scrollbars.vertical)
9053 .then_some(style.scrollbar_width)
9054 .unwrap_or_default();
9055 let minimap_width = self
9056 .get_minimap_width(
9057 &settings.minimap,
9058 scrollbars_shown,
9059 text_width,
9060 em_width,
9061 font_size,
9062 rem_size,
9063 cx,
9064 )
9065 .unwrap_or_default();
9066
9067 let right_margin = minimap_width + vertical_scrollbar_width;
9068
9069 let editor_width =
9070 text_width - gutter_dimensions.margin - 2 * em_width - right_margin;
9071 let editor_margins = EditorMargins {
9072 gutter: gutter_dimensions,
9073 right: right_margin,
9074 };
9075
9076 snapshot = self.editor.update(cx, |editor, cx| {
9077 editor.last_bounds = Some(bounds);
9078 editor.gutter_dimensions = gutter_dimensions;
9079 editor.set_visible_line_count(
9080 (bounds.size.height / line_height) as f64,
9081 window,
9082 cx,
9083 );
9084 editor.set_visible_column_count(f64::from(editor_width / em_advance));
9085
9086 if matches!(
9087 editor.mode,
9088 EditorMode::AutoHeight { .. } | EditorMode::Minimap { .. }
9089 ) {
9090 snapshot
9091 } else {
9092 let wrap_width_for = |column: u32| (column as f32 * em_advance).ceil();
9093 let wrap_width = match editor.soft_wrap_mode(cx) {
9094 SoftWrap::GitDiff => None,
9095 SoftWrap::None => Some(wrap_width_for(MAX_LINE_LEN as u32 / 2)),
9096 SoftWrap::EditorWidth => Some(editor_width),
9097 SoftWrap::Column(column) => Some(wrap_width_for(column)),
9098 SoftWrap::Bounded(column) => {
9099 Some(editor_width.min(wrap_width_for(column)))
9100 }
9101 };
9102
9103 if editor.set_wrap_width(wrap_width, cx) {
9104 editor.snapshot(window, cx)
9105 } else {
9106 snapshot
9107 }
9108 }
9109 });
9110
9111 let hitbox = window.insert_hitbox(bounds, HitboxBehavior::Normal);
9112 let gutter_hitbox = window.insert_hitbox(
9113 gutter_bounds(bounds, gutter_dimensions),
9114 HitboxBehavior::Normal,
9115 );
9116 let text_hitbox = window.insert_hitbox(
9117 Bounds {
9118 origin: gutter_hitbox.top_right(),
9119 size: size(text_width, bounds.size.height),
9120 },
9121 HitboxBehavior::Normal,
9122 );
9123
9124 // Offset the content_bounds from the text_bounds by the gutter margin (which
9125 // is roughly half a character wide) to make hit testing work more like how we want.
9126 let content_offset = point(editor_margins.gutter.margin, Pixels::ZERO);
9127 let content_origin = text_hitbox.origin + content_offset;
9128
9129 let height_in_lines = f64::from(bounds.size.height / line_height);
9130 let max_row = snapshot.max_point().row().as_f64();
9131
9132 // The max scroll position for the top of the window
9133 let max_scroll_top = if matches!(
9134 snapshot.mode,
9135 EditorMode::SingleLine
9136 | EditorMode::AutoHeight { .. }
9137 | EditorMode::Full {
9138 sizing_behavior: SizingBehavior::ExcludeOverscrollMargin
9139 | SizingBehavior::SizeByContent,
9140 ..
9141 }
9142 ) {
9143 (max_row - height_in_lines + 1.).max(0.)
9144 } else {
9145 let settings = EditorSettings::get_global(cx);
9146 match settings.scroll_beyond_last_line {
9147 ScrollBeyondLastLine::OnePage => max_row,
9148 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
9149 ScrollBeyondLastLine::VerticalScrollMargin => {
9150 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
9151 .max(0.)
9152 }
9153 }
9154 };
9155
9156 let (
9157 autoscroll_request,
9158 autoscroll_containing_element,
9159 needs_horizontal_autoscroll,
9160 ) = self.editor.update(cx, |editor, cx| {
9161 let autoscroll_request = editor.scroll_manager.take_autoscroll_request();
9162
9163 let autoscroll_containing_element =
9164 autoscroll_request.is_some() || editor.has_pending_selection();
9165
9166 let (needs_horizontal_autoscroll, was_scrolled) = editor
9167 .autoscroll_vertically(
9168 bounds,
9169 line_height,
9170 max_scroll_top,
9171 autoscroll_request,
9172 window,
9173 cx,
9174 );
9175 if was_scrolled.0 {
9176 snapshot = editor.snapshot(window, cx);
9177 }
9178 (
9179 autoscroll_request,
9180 autoscroll_containing_element,
9181 needs_horizontal_autoscroll,
9182 )
9183 });
9184
9185 let mut scroll_position = snapshot.scroll_position();
9186 // The scroll position is a fractional point, the whole number of which represents
9187 // the top of the window in terms of display rows.
9188 let start_row = DisplayRow(scroll_position.y as u32);
9189 let max_row = snapshot.max_point().row();
9190 let end_row = cmp::min(
9191 (scroll_position.y + height_in_lines).ceil() as u32,
9192 max_row.next_row().0,
9193 );
9194 let end_row = DisplayRow(end_row);
9195
9196 let row_infos = snapshot // note we only get the visual range
9197 .row_infos(start_row)
9198 .take((start_row..end_row).len())
9199 .collect::<Vec<RowInfo>>();
9200 let is_row_soft_wrapped = |row: usize| {
9201 row_infos
9202 .get(row)
9203 .is_none_or(|info| info.buffer_row.is_none())
9204 };
9205
9206 let start_anchor = if start_row == Default::default() {
9207 Anchor::min()
9208 } else {
9209 snapshot.buffer_snapshot().anchor_before(
9210 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
9211 )
9212 };
9213 let end_anchor = if end_row > max_row {
9214 Anchor::max()
9215 } else {
9216 snapshot.buffer_snapshot().anchor_before(
9217 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
9218 )
9219 };
9220
9221 let mut highlighted_rows = self
9222 .editor
9223 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
9224
9225 let is_light = cx.theme().appearance().is_light();
9226
9227 let mut highlighted_ranges = self
9228 .editor_with_selections(cx)
9229 .map(|editor| {
9230 editor.read(cx).background_highlights_in_range(
9231 start_anchor..end_anchor,
9232 &snapshot.display_snapshot,
9233 cx.theme(),
9234 )
9235 })
9236 .unwrap_or_default();
9237
9238 for (ix, row_info) in row_infos.iter().enumerate() {
9239 let Some(diff_status) = row_info.diff_status else {
9240 continue;
9241 };
9242
9243 let background_color = match diff_status.kind {
9244 DiffHunkStatusKind::Added =>
9245 cx.theme().colors().version_control_added,
9246 DiffHunkStatusKind::Deleted =>
9247 cx.theme().colors().version_control_deleted,
9248 DiffHunkStatusKind::Modified => {
9249 debug_panic!("modified diff status for row info");
9250 continue;
9251 }
9252 };
9253
9254 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
9255
9256 let hollow_highlight = LineHighlight {
9257 background: (background_color.opacity(if is_light {
9258 0.08
9259 } else {
9260 0.06
9261 }))
9262 .into(),
9263 border: Some(if is_light {
9264 background_color.opacity(0.48)
9265 } else {
9266 background_color.opacity(0.36)
9267 }),
9268 include_gutter: true,
9269 type_id: None,
9270 };
9271
9272 let filled_highlight = LineHighlight {
9273 background: solid_background(background_color.opacity(hunk_opacity)),
9274 border: None,
9275 include_gutter: true,
9276 type_id: None,
9277 };
9278
9279 let background = if Self::diff_hunk_hollow(diff_status, cx) {
9280 hollow_highlight
9281 } else {
9282 filled_highlight
9283 };
9284
9285 let base_display_point =
9286 DisplayPoint::new(start_row + DisplayRow(ix as u32), 0);
9287
9288 highlighted_rows
9289 .entry(base_display_point.row())
9290 .or_insert(background);
9291 }
9292
9293 let highlighted_gutter_ranges =
9294 self.editor.read(cx).gutter_highlights_in_range(
9295 start_anchor..end_anchor,
9296 &snapshot.display_snapshot,
9297 cx,
9298 );
9299
9300 let document_colors = self
9301 .editor
9302 .read(cx)
9303 .colors
9304 .as_ref()
9305 .map(|colors| colors.editor_display_highlights(&snapshot));
9306 let redacted_ranges = self.editor.read(cx).redacted_ranges(
9307 start_anchor..end_anchor,
9308 &snapshot.display_snapshot,
9309 cx,
9310 );
9311
9312 let (local_selections, selected_buffer_ids, latest_selection_anchors): (
9313 Vec<Selection<Point>>,
9314 Vec<BufferId>,
9315 HashMap<BufferId, Anchor>,
9316 ) = self
9317 .editor_with_selections(cx)
9318 .map(|editor| {
9319 editor.update(cx, |editor, cx| {
9320 let all_selections =
9321 editor.selections.all::<Point>(&snapshot.display_snapshot);
9322 let all_anchor_selections =
9323 editor.selections.all_anchors(&snapshot.display_snapshot);
9324 let selected_buffer_ids =
9325 if editor.buffer_kind(cx) == ItemBufferKind::Singleton {
9326 Vec::new()
9327 } else {
9328 let mut selected_buffer_ids =
9329 Vec::with_capacity(all_selections.len());
9330
9331 for selection in all_selections {
9332 for buffer_id in snapshot
9333 .buffer_snapshot()
9334 .buffer_ids_for_range(selection.range())
9335 {
9336 if selected_buffer_ids.last() != Some(&buffer_id) {
9337 selected_buffer_ids.push(buffer_id);
9338 }
9339 }
9340 }
9341
9342 selected_buffer_ids
9343 };
9344
9345 let mut selections = editor.selections.disjoint_in_range(
9346 start_anchor..end_anchor,
9347 &snapshot.display_snapshot,
9348 );
9349 selections
9350 .extend(editor.selections.pending(&snapshot.display_snapshot));
9351
9352 let mut anchors_by_buffer: HashMap<BufferId, (usize, Anchor)> =
9353 HashMap::default();
9354 for selection in all_anchor_selections.iter() {
9355 let head = selection.head();
9356 if let Some(buffer_id) = head.text_anchor.buffer_id {
9357 anchors_by_buffer
9358 .entry(buffer_id)
9359 .and_modify(|(latest_id, latest_anchor)| {
9360 if selection.id > *latest_id {
9361 *latest_id = selection.id;
9362 *latest_anchor = head;
9363 }
9364 })
9365 .or_insert((selection.id, head));
9366 }
9367 }
9368 let latest_selection_anchors = anchors_by_buffer
9369 .into_iter()
9370 .map(|(buffer_id, (_, anchor))| (buffer_id, anchor))
9371 .collect();
9372
9373 (selections, selected_buffer_ids, latest_selection_anchors)
9374 })
9375 })
9376 .unwrap_or_else(|| (Vec::new(), Vec::new(), HashMap::default()));
9377
9378 let (selections, mut active_rows, newest_selection_head) = self
9379 .layout_selections(
9380 start_anchor,
9381 end_anchor,
9382 &local_selections,
9383 &snapshot,
9384 start_row,
9385 end_row,
9386 window,
9387 cx,
9388 );
9389 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
9390 editor.active_breakpoints(start_row..end_row, window, cx)
9391 });
9392 for (display_row, (_, bp, state)) in &breakpoint_rows {
9393 if bp.is_enabled() && state.is_none_or(|s| s.verified) {
9394 active_rows.entry(*display_row).or_default().breakpoint = true;
9395 }
9396 }
9397
9398 let line_numbers = self.layout_line_numbers(
9399 Some(&gutter_hitbox),
9400 gutter_dimensions,
9401 line_height,
9402 scroll_position,
9403 start_row..end_row,
9404 &row_infos,
9405 &active_rows,
9406 newest_selection_head,
9407 &snapshot,
9408 window,
9409 cx,
9410 );
9411
9412 // We add the gutter breakpoint indicator to breakpoint_rows after painting
9413 // line numbers so we don't paint a line number debug accent color if a user
9414 // has their mouse over that line when a breakpoint isn't there
9415 self.editor.update(cx, |editor, _| {
9416 if let Some(phantom_breakpoint) = &mut editor
9417 .gutter_breakpoint_indicator
9418 .0
9419 .filter(|phantom_breakpoint| phantom_breakpoint.is_active)
9420 {
9421 // Is there a non-phantom breakpoint on this line?
9422 phantom_breakpoint.collides_with_existing_breakpoint = true;
9423 breakpoint_rows
9424 .entry(phantom_breakpoint.display_row)
9425 .or_insert_with(|| {
9426 let position = snapshot.display_point_to_anchor(
9427 DisplayPoint::new(phantom_breakpoint.display_row, 0),
9428 Bias::Right,
9429 );
9430 let breakpoint = Breakpoint::new_standard();
9431 phantom_breakpoint.collides_with_existing_breakpoint = false;
9432 (position, breakpoint, None)
9433 });
9434 }
9435 });
9436
9437 let mut expand_toggles =
9438 window.with_element_namespace("expand_toggles", |window| {
9439 self.layout_expand_toggles(
9440 &gutter_hitbox,
9441 gutter_dimensions,
9442 em_width,
9443 line_height,
9444 scroll_position,
9445 &row_infos,
9446 window,
9447 cx,
9448 )
9449 });
9450
9451 let mut crease_toggles =
9452 window.with_element_namespace("crease_toggles", |window| {
9453 self.layout_crease_toggles(
9454 start_row..end_row,
9455 &row_infos,
9456 &active_rows,
9457 &snapshot,
9458 window,
9459 cx,
9460 )
9461 });
9462 let crease_trailers =
9463 window.with_element_namespace("crease_trailers", |window| {
9464 self.layout_crease_trailers(
9465 row_infos.iter().cloned(),
9466 &snapshot,
9467 window,
9468 cx,
9469 )
9470 });
9471
9472 let display_hunks = self.layout_gutter_diff_hunks(
9473 line_height,
9474 &gutter_hitbox,
9475 start_row..end_row,
9476 &snapshot,
9477 window,
9478 cx,
9479 );
9480
9481 Self::layout_word_diff_highlights(
9482 &display_hunks,
9483 &row_infos,
9484 start_row,
9485 &snapshot,
9486 &mut highlighted_ranges,
9487 cx,
9488 );
9489
9490 let merged_highlighted_ranges =
9491 if let Some((_, colors)) = document_colors.as_ref() {
9492 &highlighted_ranges
9493 .clone()
9494 .into_iter()
9495 .chain(colors.clone())
9496 .collect()
9497 } else {
9498 &highlighted_ranges
9499 };
9500 let bg_segments_per_row = Self::bg_segments_per_row(
9501 start_row..end_row,
9502 &selections,
9503 &merged_highlighted_ranges,
9504 self.style.background,
9505 );
9506
9507 let mut line_layouts = Self::layout_lines(
9508 start_row..end_row,
9509 &snapshot,
9510 &self.style,
9511 editor_width,
9512 is_row_soft_wrapped,
9513 &bg_segments_per_row,
9514 window,
9515 cx,
9516 );
9517 let new_renderer_widths = (!is_minimap).then(|| {
9518 line_layouts
9519 .iter()
9520 .flat_map(|layout| &layout.fragments)
9521 .filter_map(|fragment| {
9522 if let LineFragment::Element { id, size, .. } = fragment {
9523 Some((*id, size.width))
9524 } else {
9525 None
9526 }
9527 })
9528 });
9529 if new_renderer_widths.is_some_and(|new_renderer_widths| {
9530 self.editor.update(cx, |editor, cx| {
9531 editor.update_renderer_widths(new_renderer_widths, cx)
9532 })
9533 }) {
9534 // If the fold widths have changed, we need to prepaint
9535 // the element again to account for any changes in
9536 // wrapping.
9537 if request_layout.can_prepaint() {
9538 return self.prepaint(
9539 None,
9540 _inspector_id,
9541 bounds,
9542 request_layout,
9543 window,
9544 cx,
9545 );
9546 } else {
9547 debug_panic!(
9548 "skipping recursive prepaint at max depth. renderer widths may be stale."
9549 );
9550 }
9551 }
9552
9553 let longest_line_blame_width = self
9554 .editor
9555 .update(cx, |editor, cx| {
9556 if !editor.show_git_blame_inline {
9557 return None;
9558 }
9559 let blame = editor.blame.as_ref()?;
9560 let (_, blame_entry) = blame
9561 .update(cx, |blame, cx| {
9562 let row_infos =
9563 snapshot.row_infos(snapshot.longest_row()).next()?;
9564 blame.blame_for_rows(&[row_infos], cx).next()
9565 })
9566 .flatten()?;
9567 let mut element = render_inline_blame_entry(blame_entry, style, cx)?;
9568 let inline_blame_padding =
9569 ProjectSettings::get_global(cx).git.inline_blame.padding as f32
9570 * em_advance;
9571 Some(
9572 element
9573 .layout_as_root(AvailableSpace::min_size(), window, cx)
9574 .width
9575 + inline_blame_padding,
9576 )
9577 })
9578 .unwrap_or(Pixels::ZERO);
9579
9580 let longest_line_width = layout_line(
9581 snapshot.longest_row(),
9582 &snapshot,
9583 style,
9584 editor_width,
9585 is_row_soft_wrapped,
9586 window,
9587 cx,
9588 )
9589 .width;
9590
9591 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
9592 text_hitbox.bounds,
9593 glyph_grid_cell,
9594 size(
9595 longest_line_width,
9596 Pixels::from(max_row.as_f64() * f64::from(line_height)),
9597 ),
9598 longest_line_blame_width,
9599 EditorSettings::get_global(cx),
9600 );
9601
9602 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
9603
9604 let sticky_header_excerpt = if snapshot.buffer_snapshot().show_headers() {
9605 snapshot.sticky_header_excerpt(scroll_position.y)
9606 } else {
9607 None
9608 };
9609 let sticky_header_excerpt_id =
9610 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
9611
9612 let blocks = (!is_minimap)
9613 .then(|| {
9614 window.with_element_namespace("blocks", |window| {
9615 self.render_blocks(
9616 start_row..end_row,
9617 &snapshot,
9618 &hitbox,
9619 &text_hitbox,
9620 editor_width,
9621 &mut scroll_width,
9622 &editor_margins,
9623 em_width,
9624 gutter_dimensions.full_width(),
9625 line_height,
9626 &mut line_layouts,
9627 &local_selections,
9628 &selected_buffer_ids,
9629 &latest_selection_anchors,
9630 is_row_soft_wrapped,
9631 sticky_header_excerpt_id,
9632 window,
9633 cx,
9634 )
9635 })
9636 })
9637 .unwrap_or_default();
9638 let RenderBlocksOutput {
9639 mut blocks,
9640 row_block_types,
9641 resized_blocks,
9642 } = blocks;
9643 if let Some(resized_blocks) = resized_blocks {
9644 self.editor.update(cx, |editor, cx| {
9645 editor.resize_blocks(
9646 resized_blocks,
9647 autoscroll_request.map(|(autoscroll, _)| autoscroll),
9648 cx,
9649 )
9650 });
9651 if request_layout.can_prepaint() {
9652 return self.prepaint(
9653 None,
9654 _inspector_id,
9655 bounds,
9656 request_layout,
9657 window,
9658 cx,
9659 );
9660 } else {
9661 debug_panic!(
9662 "skipping recursive prepaint at max depth. block layout may be stale."
9663 );
9664 }
9665 }
9666
9667 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
9668 window.with_element_namespace("blocks", |window| {
9669 self.layout_sticky_buffer_header(
9670 sticky_header_excerpt,
9671 scroll_position,
9672 line_height,
9673 right_margin,
9674 &snapshot,
9675 &hitbox,
9676 &selected_buffer_ids,
9677 &blocks,
9678 &latest_selection_anchors,
9679 window,
9680 cx,
9681 )
9682 })
9683 });
9684
9685 let start_buffer_row =
9686 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot()).row);
9687 let end_buffer_row =
9688 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot()).row);
9689
9690 let scroll_max: gpui::Point<ScrollPixelOffset> = point(
9691 ScrollPixelOffset::from(
9692 ((scroll_width - editor_width) / em_advance).max(0.0),
9693 ),
9694 max_scroll_top,
9695 );
9696
9697 self.editor.update(cx, |editor, cx| {
9698 if editor.scroll_manager.clamp_scroll_left(scroll_max.x) {
9699 scroll_position.x = scroll_position.x.min(scroll_max.x);
9700 }
9701
9702 if needs_horizontal_autoscroll.0
9703 && let Some(new_scroll_position) = editor.autoscroll_horizontally(
9704 start_row,
9705 editor_width,
9706 scroll_width,
9707 em_advance,
9708 &line_layouts,
9709 autoscroll_request,
9710 window,
9711 cx,
9712 )
9713 {
9714 scroll_position = new_scroll_position;
9715 }
9716 });
9717
9718 let scroll_pixel_position = point(
9719 scroll_position.x * f64::from(em_advance),
9720 scroll_position.y * f64::from(line_height),
9721 );
9722 let sticky_headers = if !is_minimap
9723 && is_singleton
9724 && EditorSettings::get_global(cx).sticky_scroll.enabled
9725 {
9726 self.layout_sticky_headers(
9727 &snapshot,
9728 editor_width,
9729 is_row_soft_wrapped,
9730 line_height,
9731 scroll_pixel_position,
9732 content_origin,
9733 &gutter_dimensions,
9734 &gutter_hitbox,
9735 &text_hitbox,
9736 window,
9737 cx,
9738 )
9739 } else {
9740 None
9741 };
9742 let indent_guides = self.layout_indent_guides(
9743 content_origin,
9744 text_hitbox.origin,
9745 start_buffer_row..end_buffer_row,
9746 scroll_pixel_position,
9747 line_height,
9748 &snapshot,
9749 window,
9750 cx,
9751 );
9752
9753 let crease_trailers =
9754 window.with_element_namespace("crease_trailers", |window| {
9755 self.prepaint_crease_trailers(
9756 crease_trailers,
9757 &line_layouts,
9758 line_height,
9759 content_origin,
9760 scroll_pixel_position,
9761 em_width,
9762 window,
9763 cx,
9764 )
9765 });
9766
9767 let (edit_prediction_popover, edit_prediction_popover_origin) = self
9768 .editor
9769 .update(cx, |editor, cx| {
9770 editor.render_edit_prediction_popover(
9771 &text_hitbox.bounds,
9772 content_origin,
9773 right_margin,
9774 &snapshot,
9775 start_row..end_row,
9776 scroll_position.y,
9777 scroll_position.y + height_in_lines,
9778 &line_layouts,
9779 line_height,
9780 scroll_position,
9781 scroll_pixel_position,
9782 newest_selection_head,
9783 editor_width,
9784 style,
9785 window,
9786 cx,
9787 )
9788 })
9789 .unzip();
9790
9791 let mut inline_diagnostics = self.layout_inline_diagnostics(
9792 &line_layouts,
9793 &crease_trailers,
9794 &row_block_types,
9795 content_origin,
9796 scroll_position,
9797 scroll_pixel_position,
9798 edit_prediction_popover_origin,
9799 start_row,
9800 end_row,
9801 line_height,
9802 em_width,
9803 style,
9804 window,
9805 cx,
9806 );
9807
9808 let mut inline_blame_layout = None;
9809 let mut inline_code_actions = None;
9810 if let Some(newest_selection_head) = newest_selection_head {
9811 let display_row = newest_selection_head.row();
9812 if (start_row..end_row).contains(&display_row)
9813 && !row_block_types.contains_key(&display_row)
9814 {
9815 inline_code_actions = self.layout_inline_code_actions(
9816 newest_selection_head,
9817 content_origin,
9818 scroll_position,
9819 scroll_pixel_position,
9820 line_height,
9821 &snapshot,
9822 window,
9823 cx,
9824 );
9825
9826 let line_ix = display_row.minus(start_row) as usize;
9827 if let (Some(row_info), Some(line_layout), Some(crease_trailer)) = (
9828 row_infos.get(line_ix),
9829 line_layouts.get(line_ix),
9830 crease_trailers.get(line_ix),
9831 ) {
9832 let crease_trailer_layout = crease_trailer.as_ref();
9833 if let Some(layout) = self.layout_inline_blame(
9834 display_row,
9835 row_info,
9836 line_layout,
9837 crease_trailer_layout,
9838 em_width,
9839 content_origin,
9840 scroll_position,
9841 scroll_pixel_position,
9842 line_height,
9843 window,
9844 cx,
9845 ) {
9846 inline_blame_layout = Some(layout);
9847 // Blame overrides inline diagnostics
9848 inline_diagnostics.remove(&display_row);
9849 }
9850 } else {
9851 log::error!(
9852 "bug: line_ix {} is out of bounds - row_infos.len(): {}, \
9853 line_layouts.len(): {}, \
9854 crease_trailers.len(): {}",
9855 line_ix,
9856 row_infos.len(),
9857 line_layouts.len(),
9858 crease_trailers.len(),
9859 );
9860 }
9861 }
9862 }
9863
9864 let blamed_display_rows = self.layout_blame_entries(
9865 &row_infos,
9866 em_width,
9867 scroll_position,
9868 line_height,
9869 &gutter_hitbox,
9870 gutter_dimensions.git_blame_entries_width,
9871 window,
9872 cx,
9873 );
9874
9875 let line_elements = self.prepaint_lines(
9876 start_row,
9877 &mut line_layouts,
9878 line_height,
9879 scroll_position,
9880 scroll_pixel_position,
9881 content_origin,
9882 window,
9883 cx,
9884 );
9885
9886 window.with_element_namespace("blocks", |window| {
9887 self.layout_blocks(
9888 &mut blocks,
9889 &hitbox,
9890 line_height,
9891 scroll_position,
9892 scroll_pixel_position,
9893 window,
9894 cx,
9895 );
9896 });
9897
9898 let cursors = self.collect_cursors(&snapshot, cx);
9899 let visible_row_range = start_row..end_row;
9900 let non_visible_cursors = cursors
9901 .iter()
9902 .any(|c| !visible_row_range.contains(&c.0.row()));
9903
9904 let visible_cursors = self.layout_visible_cursors(
9905 &snapshot,
9906 &selections,
9907 &row_block_types,
9908 start_row..end_row,
9909 &line_layouts,
9910 &text_hitbox,
9911 content_origin,
9912 scroll_position,
9913 scroll_pixel_position,
9914 line_height,
9915 em_width,
9916 em_advance,
9917 autoscroll_containing_element,
9918 window,
9919 cx,
9920 );
9921
9922 let scrollbars_layout = self.layout_scrollbars(
9923 &snapshot,
9924 &scrollbar_layout_information,
9925 content_offset,
9926 scroll_position,
9927 non_visible_cursors,
9928 right_margin,
9929 editor_width,
9930 window,
9931 cx,
9932 );
9933
9934 let gutter_settings = EditorSettings::get_global(cx).gutter;
9935
9936 let context_menu_layout =
9937 if let Some(newest_selection_head) = newest_selection_head {
9938 let newest_selection_point =
9939 newest_selection_head.to_point(&snapshot.display_snapshot);
9940 if (start_row..end_row).contains(&newest_selection_head.row()) {
9941 self.layout_cursor_popovers(
9942 line_height,
9943 &text_hitbox,
9944 content_origin,
9945 right_margin,
9946 start_row,
9947 scroll_pixel_position,
9948 &line_layouts,
9949 newest_selection_head,
9950 newest_selection_point,
9951 style,
9952 window,
9953 cx,
9954 )
9955 } else {
9956 None
9957 }
9958 } else {
9959 None
9960 };
9961
9962 self.layout_gutter_menu(
9963 line_height,
9964 &text_hitbox,
9965 content_origin,
9966 right_margin,
9967 scroll_pixel_position,
9968 gutter_dimensions.width - gutter_dimensions.left_padding,
9969 window,
9970 cx,
9971 );
9972
9973 let test_indicators = if gutter_settings.runnables {
9974 self.layout_run_indicators(
9975 line_height,
9976 start_row..end_row,
9977 &row_infos,
9978 scroll_position,
9979 &gutter_dimensions,
9980 &gutter_hitbox,
9981 &display_hunks,
9982 &snapshot,
9983 &mut breakpoint_rows,
9984 window,
9985 cx,
9986 )
9987 } else {
9988 Vec::new()
9989 };
9990
9991 let show_breakpoints = snapshot
9992 .show_breakpoints
9993 .unwrap_or(gutter_settings.breakpoints);
9994 let breakpoints = if show_breakpoints {
9995 self.layout_breakpoints(
9996 line_height,
9997 start_row..end_row,
9998 scroll_position,
9999 &gutter_dimensions,
10000 &gutter_hitbox,
10001 &display_hunks,
10002 &snapshot,
10003 breakpoint_rows,
10004 &row_infos,
10005 window,
10006 cx,
10007 )
10008 } else {
10009 Vec::new()
10010 };
10011
10012 self.layout_signature_help(
10013 &hitbox,
10014 content_origin,
10015 scroll_pixel_position,
10016 newest_selection_head,
10017 start_row,
10018 &line_layouts,
10019 line_height,
10020 em_width,
10021 context_menu_layout,
10022 window,
10023 cx,
10024 );
10025
10026 if !cx.has_active_drag() {
10027 self.layout_hover_popovers(
10028 &snapshot,
10029 &hitbox,
10030 start_row..end_row,
10031 content_origin,
10032 scroll_pixel_position,
10033 &line_layouts,
10034 line_height,
10035 em_width,
10036 context_menu_layout,
10037 window,
10038 cx,
10039 );
10040
10041 self.layout_blame_popover(&snapshot, &hitbox, line_height, window, cx);
10042 }
10043
10044 let mouse_context_menu = self.layout_mouse_context_menu(
10045 &snapshot,
10046 start_row..end_row,
10047 content_origin,
10048 window,
10049 cx,
10050 );
10051
10052 window.with_element_namespace("crease_toggles", |window| {
10053 self.prepaint_crease_toggles(
10054 &mut crease_toggles,
10055 line_height,
10056 &gutter_dimensions,
10057 gutter_settings,
10058 scroll_pixel_position,
10059 &gutter_hitbox,
10060 window,
10061 cx,
10062 )
10063 });
10064
10065 window.with_element_namespace("expand_toggles", |window| {
10066 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
10067 });
10068
10069 let wrap_guides = self.layout_wrap_guides(
10070 em_advance,
10071 scroll_position,
10072 content_origin,
10073 scrollbars_layout.as_ref(),
10074 vertical_scrollbar_width,
10075 &hitbox,
10076 window,
10077 cx,
10078 );
10079
10080 let minimap = window.with_element_namespace("minimap", |window| {
10081 self.layout_minimap(
10082 &snapshot,
10083 minimap_width,
10084 scroll_position,
10085 &scrollbar_layout_information,
10086 scrollbars_layout.as_ref(),
10087 window,
10088 cx,
10089 )
10090 });
10091
10092 let invisible_symbol_font_size = font_size / 2.;
10093 let whitespace_map = &self
10094 .editor
10095 .read(cx)
10096 .buffer
10097 .read(cx)
10098 .language_settings(cx)
10099 .whitespace_map;
10100
10101 let tab_char = whitespace_map.tab.clone();
10102 let tab_len = tab_char.len();
10103 let tab_invisible = window.text_system().shape_line(
10104 tab_char,
10105 invisible_symbol_font_size,
10106 &[TextRun {
10107 len: tab_len,
10108 font: self.style.text.font(),
10109 color: cx.theme().colors().editor_invisible,
10110 ..Default::default()
10111 }],
10112 None,
10113 );
10114
10115 let space_char = whitespace_map.space.clone();
10116 let space_len = space_char.len();
10117 let space_invisible = window.text_system().shape_line(
10118 space_char,
10119 invisible_symbol_font_size,
10120 &[TextRun {
10121 len: space_len,
10122 font: self.style.text.font(),
10123 color: cx.theme().colors().editor_invisible,
10124 ..Default::default()
10125 }],
10126 None,
10127 );
10128
10129 let mode = snapshot.mode.clone();
10130
10131 let (diff_hunk_controls, diff_hunk_control_bounds) = if is_read_only {
10132 (vec![], vec![])
10133 } else {
10134 self.layout_diff_hunk_controls(
10135 start_row..end_row,
10136 &row_infos,
10137 &text_hitbox,
10138 newest_selection_head,
10139 line_height,
10140 right_margin,
10141 scroll_pixel_position,
10142 &display_hunks,
10143 &highlighted_rows,
10144 self.editor.clone(),
10145 window,
10146 cx,
10147 )
10148 };
10149
10150 let position_map = Rc::new(PositionMap {
10151 size: bounds.size,
10152 visible_row_range,
10153 scroll_position,
10154 scroll_pixel_position,
10155 scroll_max,
10156 line_layouts,
10157 line_height,
10158 em_width,
10159 em_advance,
10160 snapshot,
10161 gutter_hitbox: gutter_hitbox.clone(),
10162 text_hitbox: text_hitbox.clone(),
10163 inline_blame_bounds: inline_blame_layout
10164 .as_ref()
10165 .map(|layout| (layout.bounds, layout.buffer_id, layout.entry.clone())),
10166 display_hunks: display_hunks.clone(),
10167 diff_hunk_control_bounds,
10168 });
10169
10170 self.editor.update(cx, |editor, _| {
10171 editor.last_position_map = Some(position_map.clone())
10172 });
10173
10174 EditorLayout {
10175 mode,
10176 position_map,
10177 visible_display_row_range: start_row..end_row,
10178 wrap_guides,
10179 indent_guides,
10180 hitbox,
10181 gutter_hitbox,
10182 display_hunks,
10183 content_origin,
10184 scrollbars_layout,
10185 minimap,
10186 active_rows,
10187 highlighted_rows,
10188 highlighted_ranges,
10189 highlighted_gutter_ranges,
10190 redacted_ranges,
10191 document_colors,
10192 line_elements,
10193 line_numbers,
10194 blamed_display_rows,
10195 inline_diagnostics,
10196 inline_blame_layout,
10197 inline_code_actions,
10198 blocks,
10199 cursors,
10200 visible_cursors,
10201 selections,
10202 edit_prediction_popover,
10203 diff_hunk_controls,
10204 mouse_context_menu,
10205 test_indicators,
10206 breakpoints,
10207 crease_toggles,
10208 crease_trailers,
10209 tab_invisible,
10210 space_invisible,
10211 sticky_buffer_header,
10212 sticky_headers,
10213 expand_toggles,
10214 }
10215 })
10216 })
10217 })
10218 }
10219
10220 fn paint(
10221 &mut self,
10222 _: Option<&GlobalElementId>,
10223 _inspector_id: Option<&gpui::InspectorElementId>,
10224 bounds: Bounds<gpui::Pixels>,
10225 _: &mut Self::RequestLayoutState,
10226 layout: &mut Self::PrepaintState,
10227 window: &mut Window,
10228 cx: &mut App,
10229 ) {
10230 if !layout.mode.is_minimap() {
10231 let focus_handle = self.editor.focus_handle(cx);
10232 let key_context = self
10233 .editor
10234 .update(cx, |editor, cx| editor.key_context(window, cx));
10235
10236 window.set_key_context(key_context);
10237 window.handle_input(
10238 &focus_handle,
10239 ElementInputHandler::new(bounds, self.editor.clone()),
10240 cx,
10241 );
10242 self.register_actions(window, cx);
10243 self.register_key_listeners(window, cx, layout);
10244 }
10245
10246 let text_style = TextStyleRefinement {
10247 font_size: Some(self.style.text.font_size),
10248 line_height: Some(self.style.text.line_height),
10249 ..Default::default()
10250 };
10251 let rem_size = self.rem_size(cx);
10252 window.with_rem_size(rem_size, |window| {
10253 window.with_text_style(Some(text_style), |window| {
10254 window.with_content_mask(Some(ContentMask { bounds }), |window| {
10255 self.paint_mouse_listeners(layout, window, cx);
10256 self.paint_background(layout, window, cx);
10257 self.paint_indent_guides(layout, window, cx);
10258
10259 if layout.gutter_hitbox.size.width > Pixels::ZERO {
10260 self.paint_blamed_display_rows(layout, window, cx);
10261 self.paint_line_numbers(layout, window, cx);
10262 }
10263
10264 self.paint_text(layout, window, cx);
10265
10266 if layout.gutter_hitbox.size.width > Pixels::ZERO {
10267 self.paint_gutter_highlights(layout, window, cx);
10268 self.paint_gutter_indicators(layout, window, cx);
10269 }
10270
10271 if !layout.blocks.is_empty() {
10272 window.with_element_namespace("blocks", |window| {
10273 self.paint_blocks(layout, window, cx);
10274 });
10275 }
10276
10277 window.with_element_namespace("blocks", |window| {
10278 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
10279 sticky_header.paint(window, cx)
10280 }
10281 });
10282
10283 self.paint_sticky_headers(layout, window, cx);
10284 self.paint_minimap(layout, window, cx);
10285 self.paint_scrollbars(layout, window, cx);
10286 self.paint_edit_prediction_popover(layout, window, cx);
10287 self.paint_mouse_context_menu(layout, window, cx);
10288 });
10289 })
10290 })
10291 }
10292}
10293
10294pub(super) fn gutter_bounds(
10295 editor_bounds: Bounds<Pixels>,
10296 gutter_dimensions: GutterDimensions,
10297) -> Bounds<Pixels> {
10298 Bounds {
10299 origin: editor_bounds.origin,
10300 size: size(gutter_dimensions.width, editor_bounds.size.height),
10301 }
10302}
10303
10304#[derive(Clone, Copy)]
10305struct ContextMenuLayout {
10306 y_flipped: bool,
10307 bounds: Bounds<Pixels>,
10308}
10309
10310/// Holds information required for layouting the editor scrollbars.
10311struct ScrollbarLayoutInformation {
10312 /// The bounds of the editor area (excluding the content offset).
10313 editor_bounds: Bounds<Pixels>,
10314 /// The available range to scroll within the document.
10315 scroll_range: Size<Pixels>,
10316 /// The space available for one glyph in the editor.
10317 glyph_grid_cell: Size<Pixels>,
10318}
10319
10320impl ScrollbarLayoutInformation {
10321 pub fn new(
10322 editor_bounds: Bounds<Pixels>,
10323 glyph_grid_cell: Size<Pixels>,
10324 document_size: Size<Pixels>,
10325 longest_line_blame_width: Pixels,
10326 settings: &EditorSettings,
10327 ) -> Self {
10328 let vertical_overscroll = match settings.scroll_beyond_last_line {
10329 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
10330 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
10331 ScrollBeyondLastLine::VerticalScrollMargin => {
10332 (1.0 + settings.vertical_scroll_margin) as f32 * glyph_grid_cell.height
10333 }
10334 };
10335
10336 let overscroll = size(longest_line_blame_width, vertical_overscroll);
10337
10338 ScrollbarLayoutInformation {
10339 editor_bounds,
10340 scroll_range: document_size + overscroll,
10341 glyph_grid_cell,
10342 }
10343 }
10344}
10345
10346impl IntoElement for EditorElement {
10347 type Element = Self;
10348
10349 fn into_element(self) -> Self::Element {
10350 self
10351 }
10352}
10353
10354pub struct EditorLayout {
10355 position_map: Rc<PositionMap>,
10356 hitbox: Hitbox,
10357 gutter_hitbox: Hitbox,
10358 content_origin: gpui::Point<Pixels>,
10359 scrollbars_layout: Option<EditorScrollbars>,
10360 minimap: Option<MinimapLayout>,
10361 mode: EditorMode,
10362 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
10363 indent_guides: Option<Vec<IndentGuideLayout>>,
10364 visible_display_row_range: Range<DisplayRow>,
10365 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
10366 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
10367 line_elements: SmallVec<[AnyElement; 1]>,
10368 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
10369 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
10370 blamed_display_rows: Option<Vec<AnyElement>>,
10371 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
10372 inline_blame_layout: Option<InlineBlameLayout>,
10373 inline_code_actions: Option<AnyElement>,
10374 blocks: Vec<BlockLayout>,
10375 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
10376 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
10377 redacted_ranges: Vec<Range<DisplayPoint>>,
10378 cursors: Vec<(DisplayPoint, Hsla)>,
10379 visible_cursors: Vec<CursorLayout>,
10380 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
10381 test_indicators: Vec<AnyElement>,
10382 breakpoints: Vec<AnyElement>,
10383 crease_toggles: Vec<Option<AnyElement>>,
10384 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
10385 diff_hunk_controls: Vec<AnyElement>,
10386 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
10387 edit_prediction_popover: Option<AnyElement>,
10388 mouse_context_menu: Option<AnyElement>,
10389 tab_invisible: ShapedLine,
10390 space_invisible: ShapedLine,
10391 sticky_buffer_header: Option<AnyElement>,
10392 sticky_headers: Option<StickyHeaders>,
10393 document_colors: Option<(DocumentColorsRenderMode, Vec<(Range<DisplayPoint>, Hsla)>)>,
10394}
10395
10396struct StickyHeaders {
10397 lines: Vec<StickyHeaderLine>,
10398 gutter_background: Hsla,
10399 content_background: Hsla,
10400 gutter_right_padding: Pixels,
10401}
10402
10403struct StickyHeaderLine {
10404 row: DisplayRow,
10405 offset: Pixels,
10406 line: LineWithInvisibles,
10407 line_number: Option<ShapedLine>,
10408 elements: SmallVec<[AnyElement; 1]>,
10409 available_text_width: Pixels,
10410 target_anchor: Anchor,
10411 hitbox: Hitbox,
10412}
10413
10414impl EditorLayout {
10415 fn line_end_overshoot(&self) -> Pixels {
10416 0.15 * self.position_map.line_height
10417 }
10418}
10419
10420impl StickyHeaders {
10421 fn paint(
10422 &mut self,
10423 layout: &mut EditorLayout,
10424 whitespace_setting: ShowWhitespaceSetting,
10425 window: &mut Window,
10426 cx: &mut App,
10427 ) {
10428 let line_height = layout.position_map.line_height;
10429
10430 for line in self.lines.iter_mut().rev() {
10431 window.paint_layer(
10432 Bounds::new(
10433 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
10434 size(line.hitbox.size.width, line_height),
10435 ),
10436 |window| {
10437 let gutter_bounds = Bounds::new(
10438 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
10439 size(layout.gutter_hitbox.size.width, line_height),
10440 );
10441 window.paint_quad(fill(gutter_bounds, self.gutter_background));
10442
10443 let text_bounds = Bounds::new(
10444 layout.position_map.text_hitbox.origin + point(Pixels::ZERO, line.offset),
10445 size(line.available_text_width, line_height),
10446 );
10447 window.paint_quad(fill(text_bounds, self.content_background));
10448
10449 if line.hitbox.is_hovered(window) {
10450 let hover_overlay = cx.theme().colors().panel_overlay_hover;
10451 window.paint_quad(fill(gutter_bounds, hover_overlay));
10452 window.paint_quad(fill(text_bounds, hover_overlay));
10453 }
10454
10455 line.paint(
10456 layout,
10457 self.gutter_right_padding,
10458 line.available_text_width,
10459 layout.content_origin,
10460 line_height,
10461 whitespace_setting,
10462 window,
10463 cx,
10464 );
10465 },
10466 );
10467
10468 window.set_cursor_style(CursorStyle::PointingHand, &line.hitbox);
10469 }
10470 }
10471}
10472
10473impl StickyHeaderLine {
10474 fn new(
10475 row: DisplayRow,
10476 offset: Pixels,
10477 mut line: LineWithInvisibles,
10478 line_number: Option<ShapedLine>,
10479 target_anchor: Anchor,
10480 line_height: Pixels,
10481 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
10482 content_origin: gpui::Point<Pixels>,
10483 gutter_hitbox: &Hitbox,
10484 text_hitbox: &Hitbox,
10485 window: &mut Window,
10486 cx: &mut App,
10487 ) -> Self {
10488 let mut elements = SmallVec::<[AnyElement; 1]>::new();
10489 line.prepaint_with_custom_offset(
10490 line_height,
10491 scroll_pixel_position,
10492 content_origin,
10493 offset,
10494 &mut elements,
10495 window,
10496 cx,
10497 );
10498
10499 let hitbox_bounds = Bounds::new(
10500 gutter_hitbox.origin + point(Pixels::ZERO, offset),
10501 size(text_hitbox.right() - gutter_hitbox.left(), line_height),
10502 );
10503 let available_text_width =
10504 (hitbox_bounds.size.width - gutter_hitbox.size.width).max(Pixels::ZERO);
10505
10506 Self {
10507 row,
10508 offset,
10509 line,
10510 line_number,
10511 elements,
10512 available_text_width,
10513 target_anchor,
10514 hitbox: window.insert_hitbox(hitbox_bounds, HitboxBehavior::BlockMouseExceptScroll),
10515 }
10516 }
10517
10518 fn paint(
10519 &mut self,
10520 layout: &EditorLayout,
10521 gutter_right_padding: Pixels,
10522 available_text_width: Pixels,
10523 content_origin: gpui::Point<Pixels>,
10524 line_height: Pixels,
10525 whitespace_setting: ShowWhitespaceSetting,
10526 window: &mut Window,
10527 cx: &mut App,
10528 ) {
10529 window.with_content_mask(
10530 Some(ContentMask {
10531 bounds: Bounds::new(
10532 layout.position_map.text_hitbox.bounds.origin
10533 + point(Pixels::ZERO, self.offset),
10534 size(available_text_width, line_height),
10535 ),
10536 }),
10537 |window| {
10538 self.line.draw_with_custom_offset(
10539 layout,
10540 self.row,
10541 content_origin,
10542 self.offset,
10543 whitespace_setting,
10544 &[],
10545 window,
10546 cx,
10547 );
10548 for element in &mut self.elements {
10549 element.paint(window, cx);
10550 }
10551 },
10552 );
10553
10554 if let Some(line_number) = &self.line_number {
10555 let gutter_origin = layout.gutter_hitbox.origin + point(Pixels::ZERO, self.offset);
10556 let gutter_width = layout.gutter_hitbox.size.width;
10557 let origin = point(
10558 gutter_origin.x + gutter_width - gutter_right_padding - line_number.width,
10559 gutter_origin.y,
10560 );
10561 line_number.paint(origin, line_height, window, cx).log_err();
10562 }
10563 }
10564}
10565
10566#[derive(Debug)]
10567struct LineNumberSegment {
10568 shaped_line: ShapedLine,
10569 hitbox: Option<Hitbox>,
10570}
10571
10572#[derive(Debug)]
10573struct LineNumberLayout {
10574 segments: SmallVec<[LineNumberSegment; 1]>,
10575}
10576
10577struct ColoredRange<T> {
10578 start: T,
10579 end: T,
10580 color: Hsla,
10581}
10582
10583impl Along for ScrollbarAxes {
10584 type Unit = bool;
10585
10586 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
10587 match axis {
10588 ScrollbarAxis::Horizontal => self.horizontal,
10589 ScrollbarAxis::Vertical => self.vertical,
10590 }
10591 }
10592
10593 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
10594 match axis {
10595 ScrollbarAxis::Horizontal => ScrollbarAxes {
10596 horizontal: f(self.horizontal),
10597 vertical: self.vertical,
10598 },
10599 ScrollbarAxis::Vertical => ScrollbarAxes {
10600 horizontal: self.horizontal,
10601 vertical: f(self.vertical),
10602 },
10603 }
10604 }
10605}
10606
10607#[derive(Clone)]
10608struct EditorScrollbars {
10609 pub vertical: Option<ScrollbarLayout>,
10610 pub horizontal: Option<ScrollbarLayout>,
10611 pub visible: bool,
10612}
10613
10614impl EditorScrollbars {
10615 pub fn from_scrollbar_axes(
10616 show_scrollbar: ScrollbarAxes,
10617 layout_information: &ScrollbarLayoutInformation,
10618 content_offset: gpui::Point<Pixels>,
10619 scroll_position: gpui::Point<f64>,
10620 scrollbar_width: Pixels,
10621 right_margin: Pixels,
10622 editor_width: Pixels,
10623 show_scrollbars: bool,
10624 scrollbar_state: Option<&ActiveScrollbarState>,
10625 window: &mut Window,
10626 ) -> Self {
10627 let ScrollbarLayoutInformation {
10628 editor_bounds,
10629 scroll_range,
10630 glyph_grid_cell,
10631 } = layout_information;
10632
10633 let viewport_size = size(editor_width, editor_bounds.size.height);
10634
10635 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
10636 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
10637 Corner::BottomLeft,
10638 editor_bounds.bottom_left(),
10639 size(
10640 // The horizontal viewport size differs from the space available for the
10641 // horizontal scrollbar, so we have to manually stitch it together here.
10642 editor_bounds.size.width - right_margin,
10643 scrollbar_width,
10644 ),
10645 ),
10646 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
10647 Corner::TopRight,
10648 editor_bounds.top_right(),
10649 size(scrollbar_width, viewport_size.height),
10650 ),
10651 };
10652
10653 let mut create_scrollbar_layout = |axis| {
10654 let viewport_size = viewport_size.along(axis);
10655 let scroll_range = scroll_range.along(axis);
10656
10657 // We always want a vertical scrollbar track for scrollbar diagnostic visibility.
10658 (show_scrollbar.along(axis)
10659 && (axis == ScrollbarAxis::Vertical || scroll_range > viewport_size))
10660 .then(|| {
10661 ScrollbarLayout::new(
10662 window.insert_hitbox(scrollbar_bounds_for(axis), HitboxBehavior::Normal),
10663 viewport_size,
10664 scroll_range,
10665 glyph_grid_cell.along(axis),
10666 content_offset.along(axis),
10667 scroll_position.along(axis),
10668 show_scrollbars,
10669 axis,
10670 )
10671 .with_thumb_state(
10672 scrollbar_state.and_then(|state| state.thumb_state_for_axis(axis)),
10673 )
10674 })
10675 };
10676
10677 Self {
10678 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
10679 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
10680 visible: show_scrollbars,
10681 }
10682 }
10683
10684 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
10685 [
10686 (&self.vertical, ScrollbarAxis::Vertical),
10687 (&self.horizontal, ScrollbarAxis::Horizontal),
10688 ]
10689 .into_iter()
10690 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
10691 }
10692
10693 /// Returns the currently hovered scrollbar axis, if any.
10694 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
10695 self.iter_scrollbars()
10696 .find(|s| s.0.hitbox.is_hovered(window))
10697 }
10698}
10699
10700#[derive(Clone)]
10701struct ScrollbarLayout {
10702 hitbox: Hitbox,
10703 visible_range: Range<ScrollOffset>,
10704 text_unit_size: Pixels,
10705 thumb_bounds: Option<Bounds<Pixels>>,
10706 thumb_state: ScrollbarThumbState,
10707}
10708
10709impl ScrollbarLayout {
10710 const BORDER_WIDTH: Pixels = px(1.0);
10711 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
10712 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
10713 const MIN_THUMB_SIZE: Pixels = px(25.0);
10714
10715 fn new(
10716 scrollbar_track_hitbox: Hitbox,
10717 viewport_size: Pixels,
10718 scroll_range: Pixels,
10719 glyph_space: Pixels,
10720 content_offset: Pixels,
10721 scroll_position: ScrollOffset,
10722 show_thumb: bool,
10723 axis: ScrollbarAxis,
10724 ) -> Self {
10725 let track_bounds = scrollbar_track_hitbox.bounds;
10726 // The length of the track available to the scrollbar thumb. We deliberately
10727 // exclude the content size here so that the thumb aligns with the content.
10728 let track_length = track_bounds.size.along(axis) - content_offset;
10729
10730 Self::new_with_hitbox_and_track_length(
10731 scrollbar_track_hitbox,
10732 track_length,
10733 viewport_size,
10734 scroll_range.into(),
10735 glyph_space,
10736 content_offset.into(),
10737 scroll_position,
10738 show_thumb,
10739 axis,
10740 )
10741 }
10742
10743 fn for_minimap(
10744 minimap_track_hitbox: Hitbox,
10745 visible_lines: f64,
10746 total_editor_lines: f64,
10747 minimap_line_height: Pixels,
10748 scroll_position: ScrollOffset,
10749 minimap_scroll_top: ScrollOffset,
10750 show_thumb: bool,
10751 ) -> Self {
10752 // The scrollbar thumb size is calculated as
10753 // (visible_content/total_content) Γ scrollbar_track_length.
10754 //
10755 // For the minimap's thumb layout, we leverage this by setting the
10756 // scrollbar track length to the entire document size (using minimap line
10757 // height). This creates a thumb that exactly represents the editor
10758 // viewport scaled to minimap proportions.
10759 //
10760 // We adjust the thumb position relative to `minimap_scroll_top` to
10761 // accommodate for the deliberately oversized track.
10762 //
10763 // This approach ensures that the minimap thumb accurately reflects the
10764 // editor's current scroll position whilst nicely synchronizing the minimap
10765 // thumb and scrollbar thumb.
10766 let scroll_range = total_editor_lines * f64::from(minimap_line_height);
10767 let viewport_size = visible_lines * f64::from(minimap_line_height);
10768
10769 let track_top_offset = -minimap_scroll_top * f64::from(minimap_line_height);
10770
10771 Self::new_with_hitbox_and_track_length(
10772 minimap_track_hitbox,
10773 Pixels::from(scroll_range),
10774 Pixels::from(viewport_size),
10775 scroll_range,
10776 minimap_line_height,
10777 track_top_offset,
10778 scroll_position,
10779 show_thumb,
10780 ScrollbarAxis::Vertical,
10781 )
10782 }
10783
10784 fn new_with_hitbox_and_track_length(
10785 scrollbar_track_hitbox: Hitbox,
10786 track_length: Pixels,
10787 viewport_size: Pixels,
10788 scroll_range: f64,
10789 glyph_space: Pixels,
10790 content_offset: ScrollOffset,
10791 scroll_position: ScrollOffset,
10792 show_thumb: bool,
10793 axis: ScrollbarAxis,
10794 ) -> Self {
10795 let text_units_per_page = viewport_size.to_f64() / glyph_space.to_f64();
10796 let visible_range = scroll_position..scroll_position + text_units_per_page;
10797 let total_text_units = scroll_range / glyph_space.to_f64();
10798
10799 let thumb_percentage = text_units_per_page / total_text_units;
10800 let thumb_size = Pixels::from(ScrollOffset::from(track_length) * thumb_percentage)
10801 .max(ScrollbarLayout::MIN_THUMB_SIZE)
10802 .min(track_length);
10803
10804 let text_unit_divisor = (total_text_units - text_units_per_page).max(0.);
10805
10806 let content_larger_than_viewport = text_unit_divisor > 0.;
10807
10808 let text_unit_size = if content_larger_than_viewport {
10809 Pixels::from(ScrollOffset::from(track_length - thumb_size) / text_unit_divisor)
10810 } else {
10811 glyph_space
10812 };
10813
10814 let thumb_bounds = (show_thumb && content_larger_than_viewport).then(|| {
10815 Self::thumb_bounds(
10816 &scrollbar_track_hitbox,
10817 content_offset,
10818 visible_range.start,
10819 text_unit_size,
10820 thumb_size,
10821 axis,
10822 )
10823 });
10824
10825 ScrollbarLayout {
10826 hitbox: scrollbar_track_hitbox,
10827 visible_range,
10828 text_unit_size,
10829 thumb_bounds,
10830 thumb_state: Default::default(),
10831 }
10832 }
10833
10834 fn with_thumb_state(self, thumb_state: Option<ScrollbarThumbState>) -> Self {
10835 if let Some(thumb_state) = thumb_state {
10836 Self {
10837 thumb_state,
10838 ..self
10839 }
10840 } else {
10841 self
10842 }
10843 }
10844
10845 fn thumb_bounds(
10846 scrollbar_track: &Hitbox,
10847 content_offset: f64,
10848 visible_range_start: f64,
10849 text_unit_size: Pixels,
10850 thumb_size: Pixels,
10851 axis: ScrollbarAxis,
10852 ) -> Bounds<Pixels> {
10853 let thumb_origin = scrollbar_track.origin.apply_along(axis, |origin| {
10854 origin
10855 + Pixels::from(
10856 content_offset + visible_range_start * ScrollOffset::from(text_unit_size),
10857 )
10858 });
10859 Bounds::new(
10860 thumb_origin,
10861 scrollbar_track.size.apply_along(axis, |_| thumb_size),
10862 )
10863 }
10864
10865 fn thumb_hovered(&self, position: &gpui::Point<Pixels>) -> bool {
10866 self.thumb_bounds
10867 .is_some_and(|bounds| bounds.contains(position))
10868 }
10869
10870 fn marker_quads_for_ranges(
10871 &self,
10872 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
10873 column: Option<usize>,
10874 ) -> Vec<PaintQuad> {
10875 struct MinMax {
10876 min: Pixels,
10877 max: Pixels,
10878 }
10879 let (x_range, height_limit) = if let Some(column) = column {
10880 let column_width = ((self.hitbox.size.width - Self::BORDER_WIDTH) / 3.0).floor();
10881 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
10882 let end = start + column_width;
10883 (
10884 Range { start, end },
10885 MinMax {
10886 min: Self::MIN_MARKER_HEIGHT,
10887 max: px(f32::MAX),
10888 },
10889 )
10890 } else {
10891 (
10892 Range {
10893 start: Self::BORDER_WIDTH,
10894 end: self.hitbox.size.width,
10895 },
10896 MinMax {
10897 min: Self::LINE_MARKER_HEIGHT,
10898 max: Self::LINE_MARKER_HEIGHT,
10899 },
10900 )
10901 };
10902
10903 let row_to_y = |row: DisplayRow| row.as_f64() as f32 * self.text_unit_size;
10904 let mut pixel_ranges = row_ranges
10905 .into_iter()
10906 .map(|range| {
10907 let start_y = row_to_y(range.start);
10908 let end_y = row_to_y(range.end)
10909 + self
10910 .text_unit_size
10911 .max(height_limit.min)
10912 .min(height_limit.max);
10913 ColoredRange {
10914 start: start_y,
10915 end: end_y,
10916 color: range.color,
10917 }
10918 })
10919 .peekable();
10920
10921 let mut quads = Vec::new();
10922 while let Some(mut pixel_range) = pixel_ranges.next() {
10923 while let Some(next_pixel_range) = pixel_ranges.peek() {
10924 if pixel_range.end >= next_pixel_range.start - px(1.0)
10925 && pixel_range.color == next_pixel_range.color
10926 {
10927 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
10928 pixel_ranges.next();
10929 } else {
10930 break;
10931 }
10932 }
10933
10934 let bounds = Bounds::from_corners(
10935 point(x_range.start, pixel_range.start),
10936 point(x_range.end, pixel_range.end),
10937 );
10938 quads.push(quad(
10939 bounds,
10940 Corners::default(),
10941 pixel_range.color,
10942 Edges::default(),
10943 Hsla::transparent_black(),
10944 BorderStyle::default(),
10945 ));
10946 }
10947
10948 quads
10949 }
10950}
10951
10952struct MinimapLayout {
10953 pub minimap: AnyElement,
10954 pub thumb_layout: ScrollbarLayout,
10955 pub minimap_scroll_top: ScrollOffset,
10956 pub minimap_line_height: Pixels,
10957 pub thumb_border_style: MinimapThumbBorder,
10958 pub max_scroll_top: ScrollOffset,
10959}
10960
10961impl MinimapLayout {
10962 /// The minimum width of the minimap in columns. If the minimap is smaller than this, it will be hidden.
10963 const MINIMAP_MIN_WIDTH_COLUMNS: f32 = 20.;
10964 /// The minimap width as a percentage of the editor width.
10965 const MINIMAP_WIDTH_PCT: f32 = 0.15;
10966 /// Calculates the scroll top offset the minimap editor has to have based on the
10967 /// current scroll progress.
10968 fn calculate_minimap_top_offset(
10969 document_lines: f64,
10970 visible_editor_lines: f64,
10971 visible_minimap_lines: f64,
10972 scroll_position: f64,
10973 ) -> ScrollOffset {
10974 let non_visible_document_lines = (document_lines - visible_editor_lines).max(0.);
10975 if non_visible_document_lines == 0. {
10976 0.
10977 } else {
10978 let scroll_percentage = (scroll_position / non_visible_document_lines).clamp(0., 1.);
10979 scroll_percentage * (document_lines - visible_minimap_lines).max(0.)
10980 }
10981 }
10982}
10983
10984struct CreaseTrailerLayout {
10985 element: AnyElement,
10986 bounds: Bounds<Pixels>,
10987}
10988
10989pub(crate) struct PositionMap {
10990 pub size: Size<Pixels>,
10991 pub line_height: Pixels,
10992 pub scroll_position: gpui::Point<ScrollOffset>,
10993 pub scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
10994 pub scroll_max: gpui::Point<ScrollOffset>,
10995 pub em_width: Pixels,
10996 pub em_advance: Pixels,
10997 pub visible_row_range: Range<DisplayRow>,
10998 pub line_layouts: Vec<LineWithInvisibles>,
10999 pub snapshot: EditorSnapshot,
11000 pub text_hitbox: Hitbox,
11001 pub gutter_hitbox: Hitbox,
11002 pub inline_blame_bounds: Option<(Bounds<Pixels>, BufferId, BlameEntry)>,
11003 pub display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
11004 pub diff_hunk_control_bounds: Vec<(DisplayRow, Bounds<Pixels>)>,
11005}
11006
11007#[derive(Debug, Copy, Clone)]
11008pub struct PointForPosition {
11009 pub previous_valid: DisplayPoint,
11010 pub next_valid: DisplayPoint,
11011 pub exact_unclipped: DisplayPoint,
11012 pub column_overshoot_after_line_end: u32,
11013}
11014
11015impl PointForPosition {
11016 pub fn as_valid(&self) -> Option<DisplayPoint> {
11017 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
11018 Some(self.previous_valid)
11019 } else {
11020 None
11021 }
11022 }
11023
11024 pub fn intersects_selection(&self, selection: &Selection<DisplayPoint>) -> bool {
11025 let Some(valid_point) = self.as_valid() else {
11026 return false;
11027 };
11028 let range = selection.range();
11029
11030 let candidate_row = valid_point.row();
11031 let candidate_col = valid_point.column();
11032
11033 let start_row = range.start.row();
11034 let start_col = range.start.column();
11035 let end_row = range.end.row();
11036 let end_col = range.end.column();
11037
11038 if candidate_row < start_row || candidate_row > end_row {
11039 false
11040 } else if start_row == end_row {
11041 candidate_col >= start_col && candidate_col < end_col
11042 } else if candidate_row == start_row {
11043 candidate_col >= start_col
11044 } else if candidate_row == end_row {
11045 candidate_col < end_col
11046 } else {
11047 true
11048 }
11049 }
11050}
11051
11052impl PositionMap {
11053 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
11054 let text_bounds = self.text_hitbox.bounds;
11055 let scroll_position = self.snapshot.scroll_position();
11056 let position = position - text_bounds.origin;
11057 let y = position.y.max(px(0.)).min(self.size.height);
11058 let x = position.x + (scroll_position.x as f32 * self.em_advance);
11059 let row = ((y / self.line_height) as f64 + scroll_position.y) as u32;
11060
11061 let (column, x_overshoot_after_line_end) = if let Some(line) = self
11062 .line_layouts
11063 .get(row as usize - scroll_position.y as usize)
11064 {
11065 if let Some(ix) = line.index_for_x(x) {
11066 (ix as u32, px(0.))
11067 } else {
11068 (line.len as u32, px(0.).max(x - line.width))
11069 }
11070 } else {
11071 (0, x)
11072 };
11073
11074 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
11075 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
11076 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
11077
11078 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
11079 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
11080 PointForPosition {
11081 previous_valid,
11082 next_valid,
11083 exact_unclipped,
11084 column_overshoot_after_line_end,
11085 }
11086 }
11087}
11088
11089struct BlockLayout {
11090 id: BlockId,
11091 x_offset: Pixels,
11092 row: Option<DisplayRow>,
11093 element: AnyElement,
11094 available_space: Size<AvailableSpace>,
11095 style: BlockStyle,
11096 overlaps_gutter: bool,
11097 is_buffer_header: bool,
11098}
11099
11100pub fn layout_line(
11101 row: DisplayRow,
11102 snapshot: &EditorSnapshot,
11103 style: &EditorStyle,
11104 text_width: Pixels,
11105 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
11106 window: &mut Window,
11107 cx: &mut App,
11108) -> LineWithInvisibles {
11109 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
11110 LineWithInvisibles::from_chunks(
11111 chunks,
11112 style,
11113 MAX_LINE_LEN,
11114 1,
11115 &snapshot.mode,
11116 text_width,
11117 is_row_soft_wrapped,
11118 &[],
11119 window,
11120 cx,
11121 )
11122 .pop()
11123 .unwrap()
11124}
11125
11126#[derive(Debug)]
11127pub struct IndentGuideLayout {
11128 origin: gpui::Point<Pixels>,
11129 length: Pixels,
11130 single_indent_width: Pixels,
11131 depth: u32,
11132 active: bool,
11133 settings: IndentGuideSettings,
11134}
11135
11136pub struct CursorLayout {
11137 origin: gpui::Point<Pixels>,
11138 block_width: Pixels,
11139 line_height: Pixels,
11140 color: Hsla,
11141 shape: CursorShape,
11142 block_text: Option<ShapedLine>,
11143 cursor_name: Option<AnyElement>,
11144}
11145
11146#[derive(Debug)]
11147pub struct CursorName {
11148 string: SharedString,
11149 color: Hsla,
11150 is_top_row: bool,
11151}
11152
11153impl CursorLayout {
11154 pub fn new(
11155 origin: gpui::Point<Pixels>,
11156 block_width: Pixels,
11157 line_height: Pixels,
11158 color: Hsla,
11159 shape: CursorShape,
11160 block_text: Option<ShapedLine>,
11161 ) -> CursorLayout {
11162 CursorLayout {
11163 origin,
11164 block_width,
11165 line_height,
11166 color,
11167 shape,
11168 block_text,
11169 cursor_name: None,
11170 }
11171 }
11172
11173 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
11174 Bounds {
11175 origin: self.origin + origin,
11176 size: size(self.block_width, self.line_height),
11177 }
11178 }
11179
11180 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
11181 match self.shape {
11182 CursorShape::Bar => Bounds {
11183 origin: self.origin + origin,
11184 size: size(px(2.0), self.line_height),
11185 },
11186 CursorShape::Block | CursorShape::Hollow => Bounds {
11187 origin: self.origin + origin,
11188 size: size(self.block_width, self.line_height),
11189 },
11190 CursorShape::Underline => Bounds {
11191 origin: self.origin
11192 + origin
11193 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
11194 size: size(self.block_width, px(2.0)),
11195 },
11196 }
11197 }
11198
11199 pub fn layout(
11200 &mut self,
11201 origin: gpui::Point<Pixels>,
11202 cursor_name: Option<CursorName>,
11203 window: &mut Window,
11204 cx: &mut App,
11205 ) {
11206 if let Some(cursor_name) = cursor_name {
11207 let bounds = self.bounds(origin);
11208 let text_size = self.line_height / 1.5;
11209
11210 let name_origin = if cursor_name.is_top_row {
11211 point(bounds.right() - px(1.), bounds.top())
11212 } else {
11213 match self.shape {
11214 CursorShape::Bar => point(
11215 bounds.right() - px(2.),
11216 bounds.top() - text_size / 2. - px(1.),
11217 ),
11218 _ => point(
11219 bounds.right() - px(1.),
11220 bounds.top() - text_size / 2. - px(1.),
11221 ),
11222 }
11223 };
11224 let mut name_element = div()
11225 .bg(self.color)
11226 .text_size(text_size)
11227 .px_0p5()
11228 .line_height(text_size + px(2.))
11229 .text_color(cursor_name.color)
11230 .child(cursor_name.string)
11231 .into_any_element();
11232
11233 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
11234
11235 self.cursor_name = Some(name_element);
11236 }
11237 }
11238
11239 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
11240 let bounds = self.bounds(origin);
11241
11242 //Draw background or border quad
11243 let cursor = if matches!(self.shape, CursorShape::Hollow) {
11244 outline(bounds, self.color, BorderStyle::Solid)
11245 } else {
11246 fill(bounds, self.color)
11247 };
11248
11249 if let Some(name) = &mut self.cursor_name {
11250 name.paint(window, cx);
11251 }
11252
11253 window.paint_quad(cursor);
11254
11255 if let Some(block_text) = &self.block_text {
11256 block_text
11257 .paint(self.origin + origin, self.line_height, window, cx)
11258 .log_err();
11259 }
11260 }
11261
11262 pub fn shape(&self) -> CursorShape {
11263 self.shape
11264 }
11265}
11266
11267#[derive(Debug)]
11268pub struct HighlightedRange {
11269 pub start_y: Pixels,
11270 pub line_height: Pixels,
11271 pub lines: Vec<HighlightedRangeLine>,
11272 pub color: Hsla,
11273 pub corner_radius: Pixels,
11274}
11275
11276#[derive(Debug)]
11277pub struct HighlightedRangeLine {
11278 pub start_x: Pixels,
11279 pub end_x: Pixels,
11280}
11281
11282impl HighlightedRange {
11283 pub fn paint(&self, fill: bool, bounds: Bounds<Pixels>, window: &mut Window) {
11284 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
11285 self.paint_lines(self.start_y, &self.lines[0..1], fill, bounds, window);
11286 self.paint_lines(
11287 self.start_y + self.line_height,
11288 &self.lines[1..],
11289 fill,
11290 bounds,
11291 window,
11292 );
11293 } else {
11294 self.paint_lines(self.start_y, &self.lines, fill, bounds, window);
11295 }
11296 }
11297
11298 fn paint_lines(
11299 &self,
11300 start_y: Pixels,
11301 lines: &[HighlightedRangeLine],
11302 fill: bool,
11303 _bounds: Bounds<Pixels>,
11304 window: &mut Window,
11305 ) {
11306 if lines.is_empty() {
11307 return;
11308 }
11309
11310 let first_line = lines.first().unwrap();
11311 let last_line = lines.last().unwrap();
11312
11313 let first_top_left = point(first_line.start_x, start_y);
11314 let first_top_right = point(first_line.end_x, start_y);
11315
11316 let curve_height = point(Pixels::ZERO, self.corner_radius);
11317 let curve_width = |start_x: Pixels, end_x: Pixels| {
11318 let max = (end_x - start_x) / 2.;
11319 let width = if max < self.corner_radius {
11320 max
11321 } else {
11322 self.corner_radius
11323 };
11324
11325 point(width, Pixels::ZERO)
11326 };
11327
11328 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
11329 let mut builder = if fill {
11330 gpui::PathBuilder::fill()
11331 } else {
11332 gpui::PathBuilder::stroke(px(1.))
11333 };
11334 builder.move_to(first_top_right - top_curve_width);
11335 builder.curve_to(first_top_right + curve_height, first_top_right);
11336
11337 let mut iter = lines.iter().enumerate().peekable();
11338 while let Some((ix, line)) = iter.next() {
11339 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
11340
11341 if let Some((_, next_line)) = iter.peek() {
11342 let next_top_right = point(next_line.end_x, bottom_right.y);
11343
11344 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
11345 Ordering::Equal => {
11346 builder.line_to(bottom_right);
11347 }
11348 Ordering::Less => {
11349 let curve_width = curve_width(next_top_right.x, bottom_right.x);
11350 builder.line_to(bottom_right - curve_height);
11351 if self.corner_radius > Pixels::ZERO {
11352 builder.curve_to(bottom_right - curve_width, bottom_right);
11353 }
11354 builder.line_to(next_top_right + curve_width);
11355 if self.corner_radius > Pixels::ZERO {
11356 builder.curve_to(next_top_right + curve_height, next_top_right);
11357 }
11358 }
11359 Ordering::Greater => {
11360 let curve_width = curve_width(bottom_right.x, next_top_right.x);
11361 builder.line_to(bottom_right - curve_height);
11362 if self.corner_radius > Pixels::ZERO {
11363 builder.curve_to(bottom_right + curve_width, bottom_right);
11364 }
11365 builder.line_to(next_top_right - curve_width);
11366 if self.corner_radius > Pixels::ZERO {
11367 builder.curve_to(next_top_right + curve_height, next_top_right);
11368 }
11369 }
11370 }
11371 } else {
11372 let curve_width = curve_width(line.start_x, line.end_x);
11373 builder.line_to(bottom_right - curve_height);
11374 if self.corner_radius > Pixels::ZERO {
11375 builder.curve_to(bottom_right - curve_width, bottom_right);
11376 }
11377
11378 let bottom_left = point(line.start_x, bottom_right.y);
11379 builder.line_to(bottom_left + curve_width);
11380 if self.corner_radius > Pixels::ZERO {
11381 builder.curve_to(bottom_left - curve_height, bottom_left);
11382 }
11383 }
11384 }
11385
11386 if first_line.start_x > last_line.start_x {
11387 let curve_width = curve_width(last_line.start_x, first_line.start_x);
11388 let second_top_left = point(last_line.start_x, start_y + self.line_height);
11389 builder.line_to(second_top_left + curve_height);
11390 if self.corner_radius > Pixels::ZERO {
11391 builder.curve_to(second_top_left + curve_width, second_top_left);
11392 }
11393 let first_bottom_left = point(first_line.start_x, second_top_left.y);
11394 builder.line_to(first_bottom_left - curve_width);
11395 if self.corner_radius > Pixels::ZERO {
11396 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
11397 }
11398 }
11399
11400 builder.line_to(first_top_left + curve_height);
11401 if self.corner_radius > Pixels::ZERO {
11402 builder.curve_to(first_top_left + top_curve_width, first_top_left);
11403 }
11404 builder.line_to(first_top_right - top_curve_width);
11405
11406 if let Ok(path) = builder.build() {
11407 window.paint_path(path, self.color);
11408 }
11409 }
11410}
11411
11412pub(crate) struct StickyHeader {
11413 pub item: language::OutlineItem<Anchor>,
11414 pub sticky_row: DisplayRow,
11415 pub start_point: Point,
11416 pub offset: ScrollOffset,
11417}
11418
11419enum CursorPopoverType {
11420 CodeContextMenu,
11421 EditPrediction,
11422}
11423
11424pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
11425 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
11426}
11427
11428fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
11429 (delta.pow(1.2) / 300.0).into()
11430}
11431
11432pub fn register_action<T: Action>(
11433 editor: &Entity<Editor>,
11434 window: &mut Window,
11435 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
11436) {
11437 let editor = editor.clone();
11438 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
11439 let action = action.downcast_ref().unwrap();
11440 if phase == DispatchPhase::Bubble {
11441 editor.update(cx, |editor, cx| {
11442 listener(editor, action, window, cx);
11443 })
11444 }
11445 })
11446}
11447
11448fn compute_auto_height_layout(
11449 editor: &mut Editor,
11450 min_lines: usize,
11451 max_lines: Option<usize>,
11452 max_line_number_width: Pixels,
11453 known_dimensions: Size<Option<Pixels>>,
11454 available_width: AvailableSpace,
11455 window: &mut Window,
11456 cx: &mut Context<Editor>,
11457) -> Option<Size<Pixels>> {
11458 let width = known_dimensions.width.or({
11459 if let AvailableSpace::Definite(available_width) = available_width {
11460 Some(available_width)
11461 } else {
11462 None
11463 }
11464 })?;
11465 if let Some(height) = known_dimensions.height {
11466 return Some(size(width, height));
11467 }
11468
11469 let style = editor.style.as_ref().unwrap();
11470 let font_id = window.text_system().resolve_font(&style.text.font());
11471 let font_size = style.text.font_size.to_pixels(window.rem_size());
11472 let line_height = style.text.line_height_in_pixels(window.rem_size());
11473 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
11474
11475 let mut snapshot = editor.snapshot(window, cx);
11476 let gutter_dimensions = snapshot
11477 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
11478 .or_else(|| {
11479 editor
11480 .offset_content
11481 .then(|| GutterDimensions::default_with_margin(font_id, font_size, cx))
11482 })
11483 .unwrap_or_default();
11484
11485 editor.gutter_dimensions = gutter_dimensions;
11486 let text_width = width - gutter_dimensions.width;
11487 let overscroll = size(em_width, px(0.));
11488
11489 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
11490 if !matches!(editor.soft_wrap_mode(cx), SoftWrap::None)
11491 && editor.set_wrap_width(Some(editor_width), cx)
11492 {
11493 snapshot = editor.snapshot(window, cx);
11494 }
11495
11496 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
11497
11498 let min_height = line_height * min_lines as f32;
11499 let content_height = scroll_height.max(min_height);
11500
11501 let final_height = if let Some(max_lines) = max_lines {
11502 let max_height = line_height * max_lines as f32;
11503 content_height.min(max_height)
11504 } else {
11505 content_height
11506 };
11507
11508 Some(size(width, final_height))
11509}
11510
11511#[cfg(test)]
11512mod tests {
11513 use super::*;
11514 use crate::{
11515 Editor, MultiBuffer, SelectionEffects,
11516 display_map::{BlockPlacement, BlockProperties},
11517 editor_tests::{init_test, update_test_language_settings},
11518 };
11519 use gpui::{TestAppContext, VisualTestContext};
11520 use language::language_settings;
11521 use log::info;
11522 use std::num::NonZeroU32;
11523 use util::test::sample_text;
11524
11525 #[gpui::test]
11526 async fn test_soft_wrap_editor_width_auto_height_editor(cx: &mut TestAppContext) {
11527 init_test(cx, |_| {});
11528
11529 let window = cx.add_window(|window, cx| {
11530 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
11531 let mut editor = Editor::new(
11532 EditorMode::AutoHeight {
11533 min_lines: 1,
11534 max_lines: None,
11535 },
11536 buffer,
11537 None,
11538 window,
11539 cx,
11540 );
11541 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
11542 editor
11543 });
11544 let cx = &mut VisualTestContext::from_window(*window, cx);
11545 let editor = window.root(cx).unwrap();
11546 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
11547
11548 for x in 1..=100 {
11549 let (_, state) = cx.draw(
11550 Default::default(),
11551 size(px(200. + 0.13 * x as f32), px(500.)),
11552 |_, _| EditorElement::new(&editor, style.clone()),
11553 );
11554
11555 assert!(
11556 state.position_map.scroll_max.x == 0.,
11557 "Soft wrapped editor should have no horizontal scrolling!"
11558 );
11559 }
11560 }
11561
11562 #[gpui::test]
11563 async fn test_soft_wrap_editor_width_full_editor(cx: &mut TestAppContext) {
11564 init_test(cx, |_| {});
11565
11566 let window = cx.add_window(|window, cx| {
11567 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
11568 let mut editor = Editor::new(EditorMode::full(), buffer, None, window, cx);
11569 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
11570 editor
11571 });
11572 let cx = &mut VisualTestContext::from_window(*window, cx);
11573 let editor = window.root(cx).unwrap();
11574 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
11575
11576 for x in 1..=100 {
11577 let (_, state) = cx.draw(
11578 Default::default(),
11579 size(px(200. + 0.13 * x as f32), px(500.)),
11580 |_, _| EditorElement::new(&editor, style.clone()),
11581 );
11582
11583 assert!(
11584 state.position_map.scroll_max.x == 0.,
11585 "Soft wrapped editor should have no horizontal scrolling!"
11586 );
11587 }
11588 }
11589
11590 #[gpui::test]
11591 fn test_shape_line_numbers(cx: &mut TestAppContext) {
11592 init_test(cx, |_| {});
11593 let window = cx.add_window(|window, cx| {
11594 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
11595 Editor::new(EditorMode::full(), buffer, None, window, cx)
11596 });
11597
11598 let editor = window.root(cx).unwrap();
11599 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
11600 let line_height = window
11601 .update(cx, |_, window, _| {
11602 style.text.line_height_in_pixels(window.rem_size())
11603 })
11604 .unwrap();
11605 let element = EditorElement::new(&editor, style);
11606 let snapshot = window
11607 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
11608 .unwrap();
11609
11610 let layouts = cx
11611 .update_window(*window, |_, window, cx| {
11612 element.layout_line_numbers(
11613 None,
11614 GutterDimensions {
11615 left_padding: Pixels::ZERO,
11616 right_padding: Pixels::ZERO,
11617 width: px(30.0),
11618 margin: Pixels::ZERO,
11619 git_blame_entries_width: None,
11620 },
11621 line_height,
11622 gpui::Point::default(),
11623 DisplayRow(0)..DisplayRow(6),
11624 &(0..6)
11625 .map(|row| RowInfo {
11626 buffer_row: Some(row),
11627 ..Default::default()
11628 })
11629 .collect::<Vec<_>>(),
11630 &BTreeMap::default(),
11631 Some(DisplayPoint::new(DisplayRow(0), 0)),
11632 &snapshot,
11633 window,
11634 cx,
11635 )
11636 })
11637 .unwrap();
11638 assert_eq!(layouts.len(), 6);
11639
11640 let relative_rows = window
11641 .update(cx, |editor, window, cx| {
11642 let snapshot = editor.snapshot(window, cx);
11643 element.calculate_relative_line_numbers(
11644 &snapshot,
11645 &(DisplayRow(0)..DisplayRow(6)),
11646 Some(DisplayRow(3)),
11647 false,
11648 )
11649 })
11650 .unwrap();
11651 assert_eq!(relative_rows[&DisplayRow(0)], 3);
11652 assert_eq!(relative_rows[&DisplayRow(1)], 2);
11653 assert_eq!(relative_rows[&DisplayRow(2)], 1);
11654 // current line has no relative number
11655 assert_eq!(relative_rows[&DisplayRow(4)], 1);
11656 assert_eq!(relative_rows[&DisplayRow(5)], 2);
11657
11658 // works if cursor is before screen
11659 let relative_rows = window
11660 .update(cx, |editor, window, cx| {
11661 let snapshot = editor.snapshot(window, cx);
11662 element.calculate_relative_line_numbers(
11663 &snapshot,
11664 &(DisplayRow(3)..DisplayRow(6)),
11665 Some(DisplayRow(1)),
11666 false,
11667 )
11668 })
11669 .unwrap();
11670 assert_eq!(relative_rows.len(), 3);
11671 assert_eq!(relative_rows[&DisplayRow(3)], 2);
11672 assert_eq!(relative_rows[&DisplayRow(4)], 3);
11673 assert_eq!(relative_rows[&DisplayRow(5)], 4);
11674
11675 // works if cursor is after screen
11676 let relative_rows = window
11677 .update(cx, |editor, window, cx| {
11678 let snapshot = editor.snapshot(window, cx);
11679 element.calculate_relative_line_numbers(
11680 &snapshot,
11681 &(DisplayRow(0)..DisplayRow(3)),
11682 Some(DisplayRow(6)),
11683 false,
11684 )
11685 })
11686 .unwrap();
11687 assert_eq!(relative_rows.len(), 3);
11688 assert_eq!(relative_rows[&DisplayRow(0)], 5);
11689 assert_eq!(relative_rows[&DisplayRow(1)], 4);
11690 assert_eq!(relative_rows[&DisplayRow(2)], 3);
11691
11692 const DELETED_LINE: u32 = 3;
11693 let layouts = cx
11694 .update_window(*window, |_, window, cx| {
11695 element.layout_line_numbers(
11696 None,
11697 GutterDimensions {
11698 left_padding: Pixels::ZERO,
11699 right_padding: Pixels::ZERO,
11700 width: px(30.0),
11701 margin: Pixels::ZERO,
11702 git_blame_entries_width: None,
11703 },
11704 line_height,
11705 gpui::Point::default(),
11706 DisplayRow(0)..DisplayRow(6),
11707 &(0..6)
11708 .map(|row| RowInfo {
11709 buffer_row: Some(row),
11710 diff_status: (row == DELETED_LINE).then(|| {
11711 DiffHunkStatus::deleted(
11712 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
11713 )
11714 }),
11715 ..Default::default()
11716 })
11717 .collect::<Vec<_>>(),
11718 &BTreeMap::default(),
11719 Some(DisplayPoint::new(DisplayRow(0), 0)),
11720 &snapshot,
11721 window,
11722 cx,
11723 )
11724 })
11725 .unwrap();
11726 assert_eq!(layouts.len(), 5,);
11727 assert!(
11728 layouts.get(&MultiBufferRow(DELETED_LINE)).is_none(),
11729 "Deleted line should not have a line number"
11730 );
11731 }
11732
11733 #[gpui::test]
11734 fn test_shape_line_numbers_wrapping(cx: &mut TestAppContext) {
11735 init_test(cx, |_| {});
11736 let window = cx.add_window(|window, cx| {
11737 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
11738 Editor::new(EditorMode::full(), buffer, None, window, cx)
11739 });
11740
11741 update_test_language_settings(cx, |s| {
11742 s.defaults.preferred_line_length = Some(5_u32);
11743 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
11744 });
11745
11746 let editor = window.root(cx).unwrap();
11747 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
11748 let line_height = window
11749 .update(cx, |_, window, _| {
11750 style.text.line_height_in_pixels(window.rem_size())
11751 })
11752 .unwrap();
11753 let element = EditorElement::new(&editor, style);
11754 let snapshot = window
11755 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
11756 .unwrap();
11757
11758 let layouts = cx
11759 .update_window(*window, |_, window, cx| {
11760 element.layout_line_numbers(
11761 None,
11762 GutterDimensions {
11763 left_padding: Pixels::ZERO,
11764 right_padding: Pixels::ZERO,
11765 width: px(30.0),
11766 margin: Pixels::ZERO,
11767 git_blame_entries_width: None,
11768 },
11769 line_height,
11770 gpui::Point::default(),
11771 DisplayRow(0)..DisplayRow(6),
11772 &(0..6)
11773 .map(|row| RowInfo {
11774 buffer_row: Some(row),
11775 ..Default::default()
11776 })
11777 .collect::<Vec<_>>(),
11778 &BTreeMap::default(),
11779 Some(DisplayPoint::new(DisplayRow(0), 0)),
11780 &snapshot,
11781 window,
11782 cx,
11783 )
11784 })
11785 .unwrap();
11786 assert_eq!(layouts.len(), 3);
11787
11788 let relative_rows = window
11789 .update(cx, |editor, window, cx| {
11790 let snapshot = editor.snapshot(window, cx);
11791 element.calculate_relative_line_numbers(
11792 &snapshot,
11793 &(DisplayRow(0)..DisplayRow(6)),
11794 Some(DisplayRow(3)),
11795 true,
11796 )
11797 })
11798 .unwrap();
11799
11800 assert_eq!(relative_rows[&DisplayRow(0)], 3);
11801 assert_eq!(relative_rows[&DisplayRow(1)], 2);
11802 assert_eq!(relative_rows[&DisplayRow(2)], 1);
11803 // current line has no relative number
11804 assert_eq!(relative_rows[&DisplayRow(4)], 1);
11805 assert_eq!(relative_rows[&DisplayRow(5)], 2);
11806
11807 let layouts = cx
11808 .update_window(*window, |_, window, cx| {
11809 element.layout_line_numbers(
11810 None,
11811 GutterDimensions {
11812 left_padding: Pixels::ZERO,
11813 right_padding: Pixels::ZERO,
11814 width: px(30.0),
11815 margin: Pixels::ZERO,
11816 git_blame_entries_width: None,
11817 },
11818 line_height,
11819 gpui::Point::default(),
11820 DisplayRow(0)..DisplayRow(6),
11821 &(0..6)
11822 .map(|row| RowInfo {
11823 buffer_row: Some(row),
11824 diff_status: Some(DiffHunkStatus::deleted(
11825 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
11826 )),
11827 ..Default::default()
11828 })
11829 .collect::<Vec<_>>(),
11830 &BTreeMap::from_iter([(DisplayRow(0), LineHighlightSpec::default())]),
11831 Some(DisplayPoint::new(DisplayRow(0), 0)),
11832 &snapshot,
11833 window,
11834 cx,
11835 )
11836 })
11837 .unwrap();
11838 assert!(
11839 layouts.is_empty(),
11840 "Deleted lines should have no line number"
11841 );
11842
11843 let relative_rows = window
11844 .update(cx, |editor, window, cx| {
11845 let snapshot = editor.snapshot(window, cx);
11846 element.calculate_relative_line_numbers(
11847 &snapshot,
11848 &(DisplayRow(0)..DisplayRow(6)),
11849 Some(DisplayRow(3)),
11850 true,
11851 )
11852 })
11853 .unwrap();
11854
11855 // Deleted lines should still have relative numbers
11856 assert_eq!(relative_rows[&DisplayRow(0)], 3);
11857 assert_eq!(relative_rows[&DisplayRow(1)], 2);
11858 assert_eq!(relative_rows[&DisplayRow(2)], 1);
11859 // current line, even if deleted, has no relative number
11860 assert_eq!(relative_rows[&DisplayRow(4)], 1);
11861 assert_eq!(relative_rows[&DisplayRow(5)], 2);
11862 }
11863
11864 #[gpui::test]
11865 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
11866 init_test(cx, |_| {});
11867
11868 let window = cx.add_window(|window, cx| {
11869 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
11870 Editor::new(EditorMode::full(), buffer, None, window, cx)
11871 });
11872 let cx = &mut VisualTestContext::from_window(*window, cx);
11873 let editor = window.root(cx).unwrap();
11874 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
11875
11876 window
11877 .update(cx, |editor, window, cx| {
11878 editor.cursor_shape = CursorShape::Block;
11879 editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
11880 s.select_ranges([
11881 Point::new(0, 0)..Point::new(1, 0),
11882 Point::new(3, 2)..Point::new(3, 3),
11883 Point::new(5, 6)..Point::new(6, 0),
11884 ]);
11885 });
11886 })
11887 .unwrap();
11888
11889 let (_, state) = cx.draw(
11890 point(px(500.), px(500.)),
11891 size(px(500.), px(500.)),
11892 |_, _| EditorElement::new(&editor, style),
11893 );
11894
11895 assert_eq!(state.selections.len(), 1);
11896 let local_selections = &state.selections[0].1;
11897 assert_eq!(local_selections.len(), 3);
11898 // moves cursor back one line
11899 assert_eq!(
11900 local_selections[0].head,
11901 DisplayPoint::new(DisplayRow(0), 6)
11902 );
11903 assert_eq!(
11904 local_selections[0].range,
11905 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
11906 );
11907
11908 // moves cursor back one column
11909 assert_eq!(
11910 local_selections[1].range,
11911 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
11912 );
11913 assert_eq!(
11914 local_selections[1].head,
11915 DisplayPoint::new(DisplayRow(3), 2)
11916 );
11917
11918 // leaves cursor on the max point
11919 assert_eq!(
11920 local_selections[2].range,
11921 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
11922 );
11923 assert_eq!(
11924 local_selections[2].head,
11925 DisplayPoint::new(DisplayRow(6), 0)
11926 );
11927
11928 // active lines does not include 1 (even though the range of the selection does)
11929 assert_eq!(
11930 state.active_rows.keys().cloned().collect::<Vec<_>>(),
11931 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
11932 );
11933 }
11934
11935 #[gpui::test]
11936 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
11937 init_test(cx, |_| {});
11938
11939 let window = cx.add_window(|window, cx| {
11940 let buffer = MultiBuffer::build_simple("", cx);
11941 Editor::new(EditorMode::full(), buffer, None, window, cx)
11942 });
11943 let cx = &mut VisualTestContext::from_window(*window, cx);
11944 let editor = window.root(cx).unwrap();
11945 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
11946 window
11947 .update(cx, |editor, window, cx| {
11948 editor.set_placeholder_text("hello", window, cx);
11949 editor.insert_blocks(
11950 [BlockProperties {
11951 style: BlockStyle::Fixed,
11952 placement: BlockPlacement::Above(Anchor::min()),
11953 height: Some(3),
11954 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
11955 priority: 0,
11956 }],
11957 None,
11958 cx,
11959 );
11960
11961 // Blur the editor so that it displays placeholder text.
11962 window.blur();
11963 })
11964 .unwrap();
11965
11966 let (_, state) = cx.draw(
11967 point(px(500.), px(500.)),
11968 size(px(500.), px(500.)),
11969 |_, _| EditorElement::new(&editor, style),
11970 );
11971 assert_eq!(state.position_map.line_layouts.len(), 4);
11972 assert_eq!(state.line_numbers.len(), 1);
11973 assert_eq!(
11974 state
11975 .line_numbers
11976 .get(&MultiBufferRow(0))
11977 .map(|line_number| line_number
11978 .segments
11979 .first()
11980 .unwrap()
11981 .shaped_line
11982 .text
11983 .as_ref()),
11984 Some("1")
11985 );
11986 }
11987
11988 #[gpui::test]
11989 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
11990 const TAB_SIZE: u32 = 4;
11991
11992 let input_text = "\t \t|\t| a b";
11993 let expected_invisibles = vec![
11994 Invisible::Tab {
11995 line_start_offset: 0,
11996 line_end_offset: TAB_SIZE as usize,
11997 },
11998 Invisible::Whitespace {
11999 line_offset: TAB_SIZE as usize,
12000 },
12001 Invisible::Tab {
12002 line_start_offset: TAB_SIZE as usize + 1,
12003 line_end_offset: TAB_SIZE as usize * 2,
12004 },
12005 Invisible::Tab {
12006 line_start_offset: TAB_SIZE as usize * 2 + 1,
12007 line_end_offset: TAB_SIZE as usize * 3,
12008 },
12009 Invisible::Whitespace {
12010 line_offset: TAB_SIZE as usize * 3 + 1,
12011 },
12012 Invisible::Whitespace {
12013 line_offset: TAB_SIZE as usize * 3 + 3,
12014 },
12015 ];
12016 assert_eq!(
12017 expected_invisibles.len(),
12018 input_text
12019 .chars()
12020 .filter(|initial_char| initial_char.is_whitespace())
12021 .count(),
12022 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
12023 );
12024
12025 for show_line_numbers in [true, false] {
12026 init_test(cx, |s| {
12027 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12028 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
12029 });
12030
12031 let actual_invisibles = collect_invisibles_from_new_editor(
12032 cx,
12033 EditorMode::full(),
12034 input_text,
12035 px(500.0),
12036 show_line_numbers,
12037 );
12038
12039 assert_eq!(expected_invisibles, actual_invisibles);
12040 }
12041 }
12042
12043 #[gpui::test]
12044 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
12045 init_test(cx, |s| {
12046 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12047 s.defaults.tab_size = NonZeroU32::new(4);
12048 });
12049
12050 for editor_mode_without_invisibles in [
12051 EditorMode::SingleLine,
12052 EditorMode::AutoHeight {
12053 min_lines: 1,
12054 max_lines: Some(100),
12055 },
12056 ] {
12057 for show_line_numbers in [true, false] {
12058 let invisibles = collect_invisibles_from_new_editor(
12059 cx,
12060 editor_mode_without_invisibles.clone(),
12061 "\t\t\t| | a b",
12062 px(500.0),
12063 show_line_numbers,
12064 );
12065 assert!(
12066 invisibles.is_empty(),
12067 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
12068 );
12069 }
12070 }
12071 }
12072
12073 #[gpui::test]
12074 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
12075 let tab_size = 4;
12076 let input_text = "a\tbcd ".repeat(9);
12077 let repeated_invisibles = [
12078 Invisible::Tab {
12079 line_start_offset: 1,
12080 line_end_offset: tab_size as usize,
12081 },
12082 Invisible::Whitespace {
12083 line_offset: tab_size as usize + 3,
12084 },
12085 Invisible::Whitespace {
12086 line_offset: tab_size as usize + 4,
12087 },
12088 Invisible::Whitespace {
12089 line_offset: tab_size as usize + 5,
12090 },
12091 Invisible::Whitespace {
12092 line_offset: tab_size as usize + 6,
12093 },
12094 Invisible::Whitespace {
12095 line_offset: tab_size as usize + 7,
12096 },
12097 ];
12098 let expected_invisibles = std::iter::once(repeated_invisibles)
12099 .cycle()
12100 .take(9)
12101 .flatten()
12102 .collect::<Vec<_>>();
12103 assert_eq!(
12104 expected_invisibles.len(),
12105 input_text
12106 .chars()
12107 .filter(|initial_char| initial_char.is_whitespace())
12108 .count(),
12109 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
12110 );
12111 info!("Expected invisibles: {expected_invisibles:?}");
12112
12113 init_test(cx, |_| {});
12114
12115 // Put the same string with repeating whitespace pattern into editors of various size,
12116 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
12117 let resize_step = 10.0;
12118 let mut editor_width = 200.0;
12119 while editor_width <= 1000.0 {
12120 for show_line_numbers in [true, false] {
12121 update_test_language_settings(cx, |s| {
12122 s.defaults.tab_size = NonZeroU32::new(tab_size);
12123 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12124 s.defaults.preferred_line_length = Some(editor_width as u32);
12125 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
12126 });
12127
12128 let actual_invisibles = collect_invisibles_from_new_editor(
12129 cx,
12130 EditorMode::full(),
12131 &input_text,
12132 px(editor_width),
12133 show_line_numbers,
12134 );
12135
12136 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
12137 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
12138 let mut i = 0;
12139 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
12140 i = actual_index;
12141 match expected_invisibles.get(i) {
12142 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
12143 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
12144 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
12145 _ => {
12146 panic!(
12147 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
12148 )
12149 }
12150 },
12151 None => {
12152 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
12153 }
12154 }
12155 }
12156 let missing_expected_invisibles = &expected_invisibles[i + 1..];
12157 assert!(
12158 missing_expected_invisibles.is_empty(),
12159 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
12160 );
12161
12162 editor_width += resize_step;
12163 }
12164 }
12165 }
12166
12167 fn collect_invisibles_from_new_editor(
12168 cx: &mut TestAppContext,
12169 editor_mode: EditorMode,
12170 input_text: &str,
12171 editor_width: Pixels,
12172 show_line_numbers: bool,
12173 ) -> Vec<Invisible> {
12174 info!(
12175 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
12176 f32::from(editor_width)
12177 );
12178 let window = cx.add_window(|window, cx| {
12179 let buffer = MultiBuffer::build_simple(input_text, cx);
12180 Editor::new(editor_mode, buffer, None, window, cx)
12181 });
12182 let cx = &mut VisualTestContext::from_window(*window, cx);
12183 let editor = window.root(cx).unwrap();
12184
12185 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
12186 window
12187 .update(cx, |editor, _, cx| {
12188 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12189 editor.set_wrap_width(Some(editor_width), cx);
12190 editor.set_show_line_numbers(show_line_numbers, cx);
12191 })
12192 .unwrap();
12193 let (_, state) = cx.draw(
12194 point(px(500.), px(500.)),
12195 size(px(500.), px(500.)),
12196 |_, _| EditorElement::new(&editor, style),
12197 );
12198 state
12199 .position_map
12200 .line_layouts
12201 .iter()
12202 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
12203 .cloned()
12204 .collect()
12205 }
12206
12207 #[gpui::test]
12208 fn test_merge_overlapping_ranges() {
12209 let base_bg = Hsla::white();
12210 let color1 = Hsla {
12211 h: 0.0,
12212 s: 0.5,
12213 l: 0.5,
12214 a: 0.5,
12215 };
12216 let color2 = Hsla {
12217 h: 120.0,
12218 s: 0.5,
12219 l: 0.5,
12220 a: 0.5,
12221 };
12222
12223 let display_point = |col| DisplayPoint::new(DisplayRow(0), col);
12224 let cols = |v: &Vec<(Range<DisplayPoint>, Hsla)>| -> Vec<(u32, u32)> {
12225 v.iter()
12226 .map(|(r, _)| (r.start.column(), r.end.column()))
12227 .collect()
12228 };
12229
12230 // Test overlapping ranges blend colors
12231 let overlapping = vec![
12232 (display_point(5)..display_point(15), color1),
12233 (display_point(10)..display_point(20), color2),
12234 ];
12235 let result = EditorElement::merge_overlapping_ranges(overlapping, base_bg);
12236 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
12237
12238 // Test middle segment should have blended color
12239 let blended = Hsla::blend(Hsla::blend(base_bg, color1), color2);
12240 assert_eq!(result[1].1, blended);
12241
12242 // Test adjacent same-color ranges merge
12243 let adjacent_same = vec![
12244 (display_point(5)..display_point(10), color1),
12245 (display_point(10)..display_point(15), color1),
12246 ];
12247 let result = EditorElement::merge_overlapping_ranges(adjacent_same, base_bg);
12248 assert_eq!(cols(&result), vec![(5, 15)]);
12249
12250 // Test contained range splits
12251 let contained = vec![
12252 (display_point(5)..display_point(20), color1),
12253 (display_point(10)..display_point(15), color2),
12254 ];
12255 let result = EditorElement::merge_overlapping_ranges(contained, base_bg);
12256 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
12257
12258 // Test multiple overlaps split at every boundary
12259 let color3 = Hsla {
12260 h: 240.0,
12261 s: 0.5,
12262 l: 0.5,
12263 a: 0.5,
12264 };
12265 let complex = vec![
12266 (display_point(5)..display_point(12), color1),
12267 (display_point(8)..display_point(16), color2),
12268 (display_point(10)..display_point(14), color3),
12269 ];
12270 let result = EditorElement::merge_overlapping_ranges(complex, base_bg);
12271 assert_eq!(
12272 cols(&result),
12273 vec![(5, 8), (8, 10), (10, 12), (12, 14), (14, 16)]
12274 );
12275 }
12276
12277 #[gpui::test]
12278 fn test_bg_segments_per_row() {
12279 let base_bg = Hsla::white();
12280
12281 // Case A: selection spans three display rows: row 1 [5, end), full row 2, row 3 [0, 7)
12282 {
12283 let selection_color = Hsla {
12284 h: 200.0,
12285 s: 0.5,
12286 l: 0.5,
12287 a: 0.5,
12288 };
12289 let player_color = PlayerColor {
12290 cursor: selection_color,
12291 background: selection_color,
12292 selection: selection_color,
12293 };
12294
12295 let spanning_selection = SelectionLayout {
12296 head: DisplayPoint::new(DisplayRow(3), 7),
12297 cursor_shape: CursorShape::Bar,
12298 is_newest: true,
12299 is_local: true,
12300 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 7),
12301 active_rows: DisplayRow(1)..DisplayRow(4),
12302 user_name: None,
12303 };
12304
12305 let selections = vec![(player_color, vec![spanning_selection])];
12306 let result = EditorElement::bg_segments_per_row(
12307 DisplayRow(0)..DisplayRow(5),
12308 &selections,
12309 &[],
12310 base_bg,
12311 );
12312
12313 assert_eq!(result.len(), 5);
12314 assert!(result[0].is_empty());
12315 assert_eq!(result[1].len(), 1);
12316 assert_eq!(result[2].len(), 1);
12317 assert_eq!(result[3].len(), 1);
12318 assert!(result[4].is_empty());
12319
12320 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
12321 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
12322 assert_eq!(result[1][0].0.end.column(), u32::MAX);
12323 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
12324 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
12325 assert_eq!(result[2][0].0.end.column(), u32::MAX);
12326 assert_eq!(result[3][0].0.start, DisplayPoint::new(DisplayRow(3), 0));
12327 assert_eq!(result[3][0].0.end, DisplayPoint::new(DisplayRow(3), 7));
12328 }
12329
12330 // Case B: selection ends exactly at the start of row 3, excluding row 3
12331 {
12332 let selection_color = Hsla {
12333 h: 120.0,
12334 s: 0.5,
12335 l: 0.5,
12336 a: 0.5,
12337 };
12338 let player_color = PlayerColor {
12339 cursor: selection_color,
12340 background: selection_color,
12341 selection: selection_color,
12342 };
12343
12344 let selection = SelectionLayout {
12345 head: DisplayPoint::new(DisplayRow(2), 0),
12346 cursor_shape: CursorShape::Bar,
12347 is_newest: true,
12348 is_local: true,
12349 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 0),
12350 active_rows: DisplayRow(1)..DisplayRow(3),
12351 user_name: None,
12352 };
12353
12354 let selections = vec![(player_color, vec![selection])];
12355 let result = EditorElement::bg_segments_per_row(
12356 DisplayRow(0)..DisplayRow(4),
12357 &selections,
12358 &[],
12359 base_bg,
12360 );
12361
12362 assert_eq!(result.len(), 4);
12363 assert!(result[0].is_empty());
12364 assert_eq!(result[1].len(), 1);
12365 assert_eq!(result[2].len(), 1);
12366 assert!(result[3].is_empty());
12367
12368 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
12369 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
12370 assert_eq!(result[1][0].0.end.column(), u32::MAX);
12371 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
12372 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
12373 assert_eq!(result[2][0].0.end.column(), u32::MAX);
12374 }
12375 }
12376
12377 #[cfg(test)]
12378 fn generate_test_run(len: usize, color: Hsla) -> TextRun {
12379 TextRun {
12380 len,
12381 color,
12382 ..Default::default()
12383 }
12384 }
12385
12386 #[gpui::test]
12387 fn test_split_runs_by_bg_segments(cx: &mut gpui::TestAppContext) {
12388 init_test(cx, |_| {});
12389
12390 let dx = |start: u32, end: u32| {
12391 DisplayPoint::new(DisplayRow(0), start)..DisplayPoint::new(DisplayRow(0), end)
12392 };
12393
12394 let text_color = Hsla {
12395 h: 210.0,
12396 s: 0.1,
12397 l: 0.4,
12398 a: 1.0,
12399 };
12400 let bg_1 = Hsla {
12401 h: 30.0,
12402 s: 0.6,
12403 l: 0.8,
12404 a: 1.0,
12405 };
12406 let bg_2 = Hsla {
12407 h: 200.0,
12408 s: 0.6,
12409 l: 0.2,
12410 a: 1.0,
12411 };
12412 let min_contrast = 45.0;
12413 let adjusted_bg1 = ensure_minimum_contrast(text_color, bg_1, min_contrast);
12414 let adjusted_bg2 = ensure_minimum_contrast(text_color, bg_2, min_contrast);
12415
12416 // Case A: single run; disjoint segments inside the run
12417 {
12418 let runs = vec![generate_test_run(20, text_color)];
12419 let segs = vec![(dx(5, 10), bg_1), (dx(12, 16), bg_2)];
12420 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
12421 // Expected slices: [0,5) [5,10) [10,12) [12,16) [16,20)
12422 assert_eq!(
12423 out.iter().map(|r| r.len).collect::<Vec<_>>(),
12424 vec![5, 5, 2, 4, 4]
12425 );
12426 assert_eq!(out[0].color, text_color);
12427 assert_eq!(out[1].color, adjusted_bg1);
12428 assert_eq!(out[2].color, text_color);
12429 assert_eq!(out[3].color, adjusted_bg2);
12430 assert_eq!(out[4].color, text_color);
12431 }
12432
12433 // Case B: multiple runs; segment extends to end of line (u32::MAX)
12434 {
12435 let runs = vec![
12436 generate_test_run(8, text_color),
12437 generate_test_run(7, text_color),
12438 ];
12439 let segs = vec![(dx(6, u32::MAX), bg_1)];
12440 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
12441 // Expected slices across runs: [0,6) [6,8) | [0,7)
12442 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![6, 2, 7]);
12443 assert_eq!(out[0].color, text_color);
12444 assert_eq!(out[1].color, adjusted_bg1);
12445 assert_eq!(out[2].color, adjusted_bg1);
12446 }
12447
12448 // Case C: multi-byte characters
12449 {
12450 // for text: "Hello π δΈη!"
12451 let runs = vec![
12452 generate_test_run(5, text_color), // "Hello"
12453 generate_test_run(6, text_color), // " π "
12454 generate_test_run(6, text_color), // "δΈη"
12455 generate_test_run(1, text_color), // "!"
12456 ];
12457 // selecting "π δΈ"
12458 let segs = vec![(dx(6, 14), bg_1)];
12459 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
12460 // "Hello" | " " | "π " | "δΈ" | "η" | "!"
12461 assert_eq!(
12462 out.iter().map(|r| r.len).collect::<Vec<_>>(),
12463 vec![5, 1, 5, 3, 3, 1]
12464 );
12465 assert_eq!(out[0].color, text_color); // "Hello"
12466 assert_eq!(out[2].color, adjusted_bg1); // "π "
12467 assert_eq!(out[3].color, adjusted_bg1); // "δΈ"
12468 assert_eq!(out[4].color, text_color); // "η"
12469 assert_eq!(out[5].color, text_color); // "!"
12470 }
12471
12472 // Case D: split multiple consecutive text runs with segments
12473 {
12474 let segs = vec![
12475 (dx(2, 4), bg_1), // selecting "cd"
12476 (dx(4, 8), bg_2), // selecting "efgh"
12477 (dx(9, 11), bg_1), // selecting "jk"
12478 (dx(12, 16), bg_2), // selecting "mnop"
12479 (dx(18, 19), bg_1), // selecting "s"
12480 ];
12481
12482 // for text: "abcdef"
12483 let runs = vec![
12484 generate_test_run(2, text_color), // ab
12485 generate_test_run(4, text_color), // cdef
12486 ];
12487 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
12488 // new splits "ab", "cd", "ef"
12489 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![2, 2, 2]);
12490 assert_eq!(out[0].color, text_color);
12491 assert_eq!(out[1].color, adjusted_bg1);
12492 assert_eq!(out[2].color, adjusted_bg2);
12493
12494 // for text: "ghijklmn"
12495 let runs = vec![
12496 generate_test_run(3, text_color), // ghi
12497 generate_test_run(2, text_color), // jk
12498 generate_test_run(3, text_color), // lmn
12499 ];
12500 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 6); // 2 + 4 from first run
12501 // new splits "gh", "i", "jk", "l", "mn"
12502 assert_eq!(
12503 out.iter().map(|r| r.len).collect::<Vec<_>>(),
12504 vec![2, 1, 2, 1, 2]
12505 );
12506 assert_eq!(out[0].color, adjusted_bg2);
12507 assert_eq!(out[1].color, text_color);
12508 assert_eq!(out[2].color, adjusted_bg1);
12509 assert_eq!(out[3].color, text_color);
12510 assert_eq!(out[4].color, adjusted_bg2);
12511
12512 // for text: "opqrs"
12513 let runs = vec![
12514 generate_test_run(1, text_color), // o
12515 generate_test_run(4, text_color), // pqrs
12516 ];
12517 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 14); // 6 + 3 + 2 + 3 from first two runs
12518 // new splits "o", "p", "qr", "s"
12519 assert_eq!(
12520 out.iter().map(|r| r.len).collect::<Vec<_>>(),
12521 vec![1, 1, 2, 1]
12522 );
12523 assert_eq!(out[0].color, adjusted_bg2);
12524 assert_eq!(out[1].color, adjusted_bg2);
12525 assert_eq!(out[2].color, text_color);
12526 assert_eq!(out[3].color, adjusted_bg1);
12527 }
12528 }
12529}