1use crate::{
2 ActiveDiagnostic, BlockId, CURSORS_VISIBLE_FOR, ChunkRendererContext, ChunkReplacement,
3 CodeActionSource, ColumnarMode, ConflictsOurs, ConflictsOursMarker, ConflictsOuter,
4 ConflictsTheirs, ConflictsTheirsMarker, ContextMenuPlacement, CursorShape, CustomBlockId,
5 DisplayDiffHunk, DisplayPoint, DisplayRow, DocumentHighlightRead, DocumentHighlightWrite,
6 EditDisplayMode, EditPrediction, Editor, EditorMode, EditorSettings, EditorSnapshot,
7 EditorStyle, FILE_HEADER_HEIGHT, FocusedBlock, GutterDimensions, HalfPageDown, HalfPageUp,
8 HandleInput, HoveredCursor, InlayHintRefreshReason, JumpData, LineDown, LineHighlight, LineUp,
9 MAX_LINE_LEN, MINIMAP_FONT_SIZE, MULTI_BUFFER_EXCERPT_HEADER_HEIGHT, OpenExcerpts, PageDown,
10 PageUp, PhantomBreakpointIndicator, Point, RowExt, RowRangeExt, SelectPhase,
11 SelectedTextHighlight, Selection, SelectionDragState, SelectionEffects, SizingBehavior,
12 SoftWrap, StickyHeaderExcerpt, ToPoint, ToggleFold, ToggleFoldAll,
13 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
14 column_pixels,
15 display_map::{
16 Block, BlockContext, BlockStyle, ChunkRendererId, DisplaySnapshot, EditorMargins,
17 HighlightKey, HighlightedChunk, ToDisplayPoint,
18 },
19 editor_settings::{
20 CurrentLineHighlight, DocumentColorsRenderMode, DoubleClickInMultibuffer, Minimap,
21 MinimapThumb, MinimapThumbBorder, ScrollBeyondLastLine, ScrollbarAxes,
22 ScrollbarDiagnostics, ShowMinimap,
23 },
24 git::blame::{BlameRenderer, GitBlame, GlobalBlameRenderer},
25 hover_popover::{
26 self, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
27 POPOVER_RIGHT_OFFSET, hover_at,
28 },
29 inlay_hint_settings,
30 items::BufferSearchHighlights,
31 mouse_context_menu::{self, MenuPosition},
32 scroll::{
33 ActiveScrollbarState, Autoscroll, ScrollOffset, ScrollPixelOffset, ScrollbarThumbState,
34 scroll_amount::ScrollAmount,
35 },
36};
37use buffer_diff::{DiffHunkStatus, DiffHunkStatusKind};
38use collections::{BTreeMap, HashMap};
39use file_icons::FileIcons;
40use git::{Oid, blame::BlameEntry, commit::ParsedCommitMessage, status::FileStatus};
41use gpui::{
42 Action, Along, AnyElement, App, AppContext, AvailableSpace, Axis as ScrollbarAxis, BorderStyle,
43 Bounds, ClickEvent, ClipboardItem, ContentMask, Context, Corner, Corners, CursorStyle,
44 DispatchPhase, Edges, Element, ElementInputHandler, Entity, Focusable as _, FontId,
45 GlobalElementId, Hitbox, HitboxBehavior, Hsla, InteractiveElement, IntoElement, IsZero,
46 KeybindingKeystroke, Length, Modifiers, ModifiersChangedEvent, MouseButton, MouseClickEvent,
47 MouseDownEvent, MouseMoveEvent, MousePressureEvent, MouseUpEvent, PaintQuad, ParentElement,
48 Pixels, PressureStage, ScrollDelta, ScrollHandle, ScrollWheelEvent, ShapedLine, SharedString,
49 Size, StatefulInteractiveElement, Style, Styled, TextRun, TextStyleRefinement, WeakEntity,
50 Window, anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline, point, px,
51 quad, relative, size, solid_background, transparent_black,
52};
53use itertools::Itertools;
54use language::{IndentGuideSettings, language_settings::ShowWhitespaceSetting};
55use markdown::Markdown;
56use multi_buffer::{
57 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, ExpandInfo, MultiBufferPoint,
58 MultiBufferRow, RowInfo,
59};
60
61use edit_prediction_types::EditPredictionGranularity;
62use project::{
63 Entry, ProjectPath,
64 debugger::breakpoint_store::{Breakpoint, BreakpointSessionState},
65 project_settings::ProjectSettings,
66};
67use settings::{
68 GitGutterSetting, GitHunkStyleSetting, IndentGuideBackgroundColoring, IndentGuideColoring,
69 Settings,
70};
71use smallvec::{SmallVec, smallvec};
72use std::{
73 any::TypeId,
74 borrow::Cow,
75 cell::Cell,
76 cmp::{self, Ordering},
77 fmt::{self, Write},
78 iter, mem,
79 ops::{Deref, Range},
80 path::{self, Path},
81 rc::Rc,
82 sync::Arc,
83 time::{Duration, Instant},
84};
85use sum_tree::Bias;
86use text::{BufferId, SelectionGoal};
87use theme::{ActiveTheme, Appearance, BufferLineHeight, PlayerColor};
88use ui::utils::ensure_minimum_contrast;
89use ui::{
90 ButtonLike, ContextMenu, Indicator, KeyBinding, POPOVER_Y_PADDING, Tooltip, prelude::*,
91 right_click_menu, scrollbars::ShowScrollbar, text_for_keystroke,
92};
93use unicode_segmentation::UnicodeSegmentation;
94use util::post_inc;
95use util::{RangeExt, ResultExt, debug_panic};
96use workspace::{
97 CollaboratorId, ItemSettings, OpenInTerminal, OpenTerminal, RevealInProjectPanel, Workspace,
98 item::{Item, ItemBufferKind},
99 notifications::NotifyTaskExt,
100};
101
102/// Determines what kinds of highlights should be applied to a lines background.
103#[derive(Clone, Copy, Default)]
104struct LineHighlightSpec {
105 selection: bool,
106 breakpoint: bool,
107 _active_stack_frame: bool,
108}
109
110#[derive(Debug)]
111struct SelectionLayout {
112 head: DisplayPoint,
113 cursor_shape: CursorShape,
114 is_newest: bool,
115 is_local: bool,
116 range: Range<DisplayPoint>,
117 active_rows: Range<DisplayRow>,
118 user_name: Option<SharedString>,
119}
120
121struct InlineBlameLayout {
122 element: AnyElement,
123 bounds: Bounds<Pixels>,
124 buffer_id: BufferId,
125 entry: BlameEntry,
126}
127
128impl SelectionLayout {
129 fn new<T: ToPoint + ToDisplayPoint + Clone>(
130 selection: Selection<T>,
131 line_mode: bool,
132 cursor_offset: bool,
133 cursor_shape: CursorShape,
134 map: &DisplaySnapshot,
135 is_newest: bool,
136 is_local: bool,
137 user_name: Option<SharedString>,
138 ) -> Self {
139 let point_selection = selection.map(|p| p.to_point(map.buffer_snapshot()));
140 let display_selection = point_selection.map(|p| p.to_display_point(map));
141 let mut range = display_selection.range();
142 let mut head = display_selection.head();
143 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
144 ..map.next_line_boundary(point_selection.end).1.row();
145
146 // vim visual line mode
147 if line_mode {
148 let point_range = map.expand_to_line(point_selection.range());
149 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
150 }
151
152 // any vim visual mode (including line mode)
153 if cursor_offset && !range.is_empty() && !selection.reversed {
154 if head.column() > 0 {
155 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left);
156 } else if head.row().0 > 0 && head != map.max_point() {
157 head = map.clip_point(
158 DisplayPoint::new(
159 head.row().previous_row(),
160 map.line_len(head.row().previous_row()),
161 ),
162 Bias::Left,
163 );
164 // updating range.end is a no-op unless you're cursor is
165 // on the newline containing a multi-buffer divider
166 // in which case the clip_point may have moved the head up
167 // an additional row.
168 range.end = DisplayPoint::new(head.row().next_row(), 0);
169 active_rows.end = head.row();
170 }
171 }
172
173 Self {
174 head,
175 cursor_shape,
176 is_newest,
177 is_local,
178 range,
179 active_rows,
180 user_name,
181 }
182 }
183}
184
185#[derive(Default)]
186struct RenderBlocksOutput {
187 blocks: Vec<BlockLayout>,
188 row_block_types: HashMap<DisplayRow, bool>,
189 resized_blocks: Option<HashMap<CustomBlockId, u32>>,
190}
191
192pub struct EditorElement {
193 editor: Entity<Editor>,
194 style: EditorStyle,
195}
196
197type DisplayRowDelta = u32;
198
199impl EditorElement {
200 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
201
202 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
203 Self {
204 editor: editor.clone(),
205 style,
206 }
207 }
208
209 fn register_actions(&self, window: &mut Window, cx: &mut App) {
210 let editor = &self.editor;
211 editor.update(cx, |editor, cx| {
212 for action in editor.editor_actions.borrow().values() {
213 (action)(editor, window, cx)
214 }
215 });
216
217 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
218 crate::clangd_ext::apply_related_actions(editor, window, cx);
219
220 register_action(editor, window, Editor::open_context_menu);
221 register_action(editor, window, Editor::move_left);
222 register_action(editor, window, Editor::move_right);
223 register_action(editor, window, Editor::move_down);
224 register_action(editor, window, Editor::move_down_by_lines);
225 register_action(editor, window, Editor::select_down_by_lines);
226 register_action(editor, window, Editor::move_up);
227 register_action(editor, window, Editor::move_up_by_lines);
228 register_action(editor, window, Editor::select_up_by_lines);
229 register_action(editor, window, Editor::select_page_down);
230 register_action(editor, window, Editor::select_page_up);
231 register_action(editor, window, Editor::cancel);
232 register_action(editor, window, Editor::newline);
233 register_action(editor, window, Editor::newline_above);
234 register_action(editor, window, Editor::newline_below);
235 register_action(editor, window, Editor::backspace);
236 register_action(editor, window, Editor::blame_hover);
237 register_action(editor, window, Editor::delete);
238 register_action(editor, window, Editor::tab);
239 register_action(editor, window, Editor::next_snippet_tabstop);
240 register_action(editor, window, Editor::previous_snippet_tabstop);
241 register_action(editor, window, Editor::backtab);
242 register_action(editor, window, Editor::indent);
243 register_action(editor, window, Editor::outdent);
244 register_action(editor, window, Editor::autoindent);
245 register_action(editor, window, Editor::delete_line);
246 register_action(editor, window, Editor::join_lines);
247 register_action(editor, window, Editor::sort_lines_by_length);
248 register_action(editor, window, Editor::sort_lines_case_sensitive);
249 register_action(editor, window, Editor::sort_lines_case_insensitive);
250 register_action(editor, window, Editor::reverse_lines);
251 register_action(editor, window, Editor::shuffle_lines);
252 register_action(editor, window, Editor::rotate_selections_forward);
253 register_action(editor, window, Editor::rotate_selections_backward);
254 register_action(editor, window, Editor::convert_indentation_to_spaces);
255 register_action(editor, window, Editor::convert_indentation_to_tabs);
256 register_action(editor, window, Editor::convert_to_upper_case);
257 register_action(editor, window, Editor::convert_to_lower_case);
258 register_action(editor, window, Editor::convert_to_title_case);
259 register_action(editor, window, Editor::convert_to_snake_case);
260 register_action(editor, window, Editor::convert_to_kebab_case);
261 register_action(editor, window, Editor::convert_to_upper_camel_case);
262 register_action(editor, window, Editor::convert_to_lower_camel_case);
263 register_action(editor, window, Editor::convert_to_opposite_case);
264 register_action(editor, window, Editor::convert_to_sentence_case);
265 register_action(editor, window, Editor::toggle_case);
266 register_action(editor, window, Editor::convert_to_rot13);
267 register_action(editor, window, Editor::convert_to_rot47);
268 register_action(editor, window, Editor::delete_to_previous_word_start);
269 register_action(editor, window, Editor::delete_to_previous_subword_start);
270 register_action(editor, window, Editor::delete_to_next_word_end);
271 register_action(editor, window, Editor::delete_to_next_subword_end);
272 register_action(editor, window, Editor::delete_to_beginning_of_line);
273 register_action(editor, window, Editor::delete_to_end_of_line);
274 register_action(editor, window, Editor::cut_to_end_of_line);
275 register_action(editor, window, Editor::duplicate_line_up);
276 register_action(editor, window, Editor::duplicate_line_down);
277 register_action(editor, window, Editor::duplicate_selection);
278 register_action(editor, window, Editor::move_line_up);
279 register_action(editor, window, Editor::move_line_down);
280 register_action(editor, window, Editor::transpose);
281 register_action(editor, window, Editor::rewrap);
282 register_action(editor, window, Editor::cut);
283 register_action(editor, window, Editor::kill_ring_cut);
284 register_action(editor, window, Editor::kill_ring_yank);
285 register_action(editor, window, Editor::copy);
286 register_action(editor, window, Editor::copy_and_trim);
287 register_action(editor, window, Editor::diff_clipboard_with_selection);
288 register_action(editor, window, Editor::paste);
289 register_action(editor, window, Editor::undo);
290 register_action(editor, window, Editor::redo);
291 register_action(editor, window, Editor::move_page_up);
292 register_action(editor, window, Editor::move_page_down);
293 register_action(editor, window, Editor::next_screen);
294 register_action(editor, window, Editor::scroll_cursor_top);
295 register_action(editor, window, Editor::scroll_cursor_center);
296 register_action(editor, window, Editor::scroll_cursor_bottom);
297 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
298 register_action(editor, window, |editor, _: &LineDown, window, cx| {
299 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
300 });
301 register_action(editor, window, |editor, _: &LineUp, window, cx| {
302 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
303 });
304 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
305 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
306 });
307 register_action(
308 editor,
309 window,
310 |editor, HandleInput(text): &HandleInput, window, cx| {
311 if text.is_empty() {
312 return;
313 }
314 editor.handle_input(text, window, cx);
315 },
316 );
317 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
318 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
319 });
320 register_action(editor, window, |editor, _: &PageDown, window, cx| {
321 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
322 });
323 register_action(editor, window, |editor, _: &PageUp, window, cx| {
324 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
325 });
326 register_action(editor, window, Editor::move_to_previous_word_start);
327 register_action(editor, window, Editor::move_to_previous_subword_start);
328 register_action(editor, window, Editor::move_to_next_word_end);
329 register_action(editor, window, Editor::move_to_next_subword_end);
330 register_action(editor, window, Editor::move_to_beginning_of_line);
331 register_action(editor, window, Editor::move_to_end_of_line);
332 register_action(editor, window, Editor::move_to_start_of_paragraph);
333 register_action(editor, window, Editor::move_to_end_of_paragraph);
334 register_action(editor, window, Editor::move_to_beginning);
335 register_action(editor, window, Editor::move_to_end);
336 register_action(editor, window, Editor::move_to_start_of_excerpt);
337 register_action(editor, window, Editor::move_to_start_of_next_excerpt);
338 register_action(editor, window, Editor::move_to_end_of_excerpt);
339 register_action(editor, window, Editor::move_to_end_of_previous_excerpt);
340 register_action(editor, window, Editor::select_up);
341 register_action(editor, window, Editor::select_down);
342 register_action(editor, window, Editor::select_left);
343 register_action(editor, window, Editor::select_right);
344 register_action(editor, window, Editor::select_to_previous_word_start);
345 register_action(editor, window, Editor::select_to_previous_subword_start);
346 register_action(editor, window, Editor::select_to_next_word_end);
347 register_action(editor, window, Editor::select_to_next_subword_end);
348 register_action(editor, window, Editor::select_to_beginning_of_line);
349 register_action(editor, window, Editor::select_to_end_of_line);
350 register_action(editor, window, Editor::select_to_start_of_paragraph);
351 register_action(editor, window, Editor::select_to_end_of_paragraph);
352 register_action(editor, window, Editor::select_to_start_of_excerpt);
353 register_action(editor, window, Editor::select_to_start_of_next_excerpt);
354 register_action(editor, window, Editor::select_to_end_of_excerpt);
355 register_action(editor, window, Editor::select_to_end_of_previous_excerpt);
356 register_action(editor, window, Editor::select_to_beginning);
357 register_action(editor, window, Editor::select_to_end);
358 register_action(editor, window, Editor::select_all);
359 register_action(editor, window, |editor, action, window, cx| {
360 editor.select_all_matches(action, window, cx).log_err();
361 });
362 register_action(editor, window, Editor::select_line);
363 register_action(editor, window, Editor::split_selection_into_lines);
364 register_action(editor, window, Editor::add_selection_above);
365 register_action(editor, window, Editor::add_selection_below);
366 register_action(editor, window, Editor::insert_snippet_at_selections);
367 register_action(editor, window, |editor, action, window, cx| {
368 editor.select_next(action, window, cx).log_err();
369 });
370 register_action(editor, window, |editor, action, window, cx| {
371 editor.select_previous(action, window, cx).log_err();
372 });
373 register_action(editor, window, |editor, action, window, cx| {
374 editor.find_next_match(action, window, cx).log_err();
375 });
376 register_action(editor, window, |editor, action, window, cx| {
377 editor.find_previous_match(action, window, cx).log_err();
378 });
379 register_action(editor, window, Editor::toggle_comments);
380 register_action(editor, window, Editor::select_larger_syntax_node);
381 register_action(editor, window, Editor::select_smaller_syntax_node);
382 register_action(editor, window, Editor::select_next_syntax_node);
383 register_action(editor, window, Editor::select_prev_syntax_node);
384 register_action(editor, window, Editor::unwrap_syntax_node);
385 register_action(editor, window, Editor::select_enclosing_symbol);
386 register_action(editor, window, Editor::move_to_enclosing_bracket);
387 register_action(editor, window, Editor::undo_selection);
388 register_action(editor, window, Editor::redo_selection);
389 if editor.read(cx).buffer_kind(cx) == ItemBufferKind::Multibuffer {
390 register_action(editor, window, Editor::expand_excerpts);
391 register_action(editor, window, Editor::expand_excerpts_up);
392 register_action(editor, window, Editor::expand_excerpts_down);
393 }
394 register_action(editor, window, Editor::go_to_diagnostic);
395 register_action(editor, window, Editor::go_to_prev_diagnostic);
396 register_action(editor, window, Editor::go_to_next_hunk);
397 register_action(editor, window, Editor::go_to_prev_hunk);
398 register_action(editor, window, Editor::go_to_next_document_highlight);
399 register_action(editor, window, Editor::go_to_prev_document_highlight);
400 register_action(editor, window, |editor, action, window, cx| {
401 editor
402 .go_to_definition(action, window, cx)
403 .detach_and_log_err(cx);
404 });
405 register_action(editor, window, |editor, action, window, cx| {
406 editor
407 .go_to_definition_split(action, window, cx)
408 .detach_and_log_err(cx);
409 });
410 register_action(editor, window, |editor, action, window, cx| {
411 editor
412 .go_to_declaration(action, window, cx)
413 .detach_and_log_err(cx);
414 });
415 register_action(editor, window, |editor, action, window, cx| {
416 editor
417 .go_to_declaration_split(action, window, cx)
418 .detach_and_log_err(cx);
419 });
420 register_action(editor, window, |editor, action, window, cx| {
421 editor
422 .go_to_implementation(action, window, cx)
423 .detach_and_log_err(cx);
424 });
425 register_action(editor, window, |editor, action, window, cx| {
426 editor
427 .go_to_implementation_split(action, window, cx)
428 .detach_and_log_err(cx);
429 });
430 register_action(editor, window, |editor, action, window, cx| {
431 editor
432 .go_to_type_definition(action, window, cx)
433 .detach_and_log_err(cx);
434 });
435 register_action(editor, window, |editor, action, window, cx| {
436 editor
437 .go_to_type_definition_split(action, window, cx)
438 .detach_and_log_err(cx);
439 });
440 register_action(editor, window, Editor::open_url);
441 register_action(editor, window, Editor::open_selected_filename);
442 register_action(editor, window, Editor::fold);
443 register_action(editor, window, Editor::fold_at_level);
444 register_action(editor, window, Editor::fold_at_level_1);
445 register_action(editor, window, Editor::fold_at_level_2);
446 register_action(editor, window, Editor::fold_at_level_3);
447 register_action(editor, window, Editor::fold_at_level_4);
448 register_action(editor, window, Editor::fold_at_level_5);
449 register_action(editor, window, Editor::fold_at_level_6);
450 register_action(editor, window, Editor::fold_at_level_7);
451 register_action(editor, window, Editor::fold_at_level_8);
452 register_action(editor, window, Editor::fold_at_level_9);
453 register_action(editor, window, Editor::fold_all);
454 register_action(editor, window, Editor::fold_function_bodies);
455 register_action(editor, window, Editor::fold_recursive);
456 register_action(editor, window, Editor::toggle_fold);
457 register_action(editor, window, Editor::toggle_fold_recursive);
458 register_action(editor, window, Editor::toggle_fold_all);
459 register_action(editor, window, Editor::unfold_lines);
460 register_action(editor, window, Editor::unfold_recursive);
461 register_action(editor, window, Editor::unfold_all);
462 register_action(editor, window, Editor::fold_selected_ranges);
463 register_action(editor, window, Editor::set_mark);
464 register_action(editor, window, Editor::swap_selection_ends);
465 register_action(editor, window, Editor::show_completions);
466 register_action(editor, window, Editor::show_word_completions);
467 register_action(editor, window, Editor::toggle_code_actions);
468 register_action(editor, window, Editor::open_excerpts);
469 register_action(editor, window, Editor::open_excerpts_in_split);
470 register_action(editor, window, Editor::toggle_soft_wrap);
471 register_action(editor, window, Editor::toggle_tab_bar);
472 register_action(editor, window, Editor::toggle_line_numbers);
473 register_action(editor, window, Editor::toggle_relative_line_numbers);
474 register_action(editor, window, Editor::toggle_indent_guides);
475 register_action(editor, window, Editor::toggle_inlay_hints);
476 register_action(editor, window, Editor::toggle_edit_predictions);
477 if editor.read(cx).diagnostics_enabled() {
478 register_action(editor, window, Editor::toggle_diagnostics);
479 }
480 if editor.read(cx).inline_diagnostics_enabled() {
481 register_action(editor, window, Editor::toggle_inline_diagnostics);
482 }
483 if editor.read(cx).supports_minimap(cx) {
484 register_action(editor, window, Editor::toggle_minimap);
485 }
486 register_action(editor, window, hover_popover::hover);
487 register_action(editor, window, Editor::reveal_in_finder);
488 register_action(editor, window, Editor::copy_path);
489 register_action(editor, window, Editor::copy_relative_path);
490 register_action(editor, window, Editor::copy_file_name);
491 register_action(editor, window, Editor::copy_file_name_without_extension);
492 register_action(editor, window, Editor::copy_highlight_json);
493 register_action(editor, window, Editor::copy_permalink_to_line);
494 register_action(editor, window, Editor::open_permalink_to_line);
495 register_action(editor, window, Editor::copy_file_location);
496 register_action(editor, window, Editor::toggle_git_blame);
497 register_action(editor, window, Editor::toggle_git_blame_inline);
498 register_action(editor, window, Editor::open_git_blame_commit);
499 register_action(editor, window, Editor::toggle_selected_diff_hunks);
500 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
501 register_action(editor, window, Editor::stage_and_next);
502 register_action(editor, window, Editor::unstage_and_next);
503 register_action(editor, window, Editor::expand_all_diff_hunks);
504 register_action(editor, window, Editor::collapse_all_diff_hunks);
505 register_action(editor, window, Editor::go_to_previous_change);
506 register_action(editor, window, Editor::go_to_next_change);
507 register_action(editor, window, Editor::go_to_prev_reference);
508 register_action(editor, window, Editor::go_to_next_reference);
509
510 register_action(editor, window, |editor, action, window, cx| {
511 if let Some(task) = editor.format(action, window, cx) {
512 task.detach_and_notify_err(window, cx);
513 } else {
514 cx.propagate();
515 }
516 });
517 register_action(editor, window, |editor, action, window, cx| {
518 if let Some(task) = editor.format_selections(action, window, cx) {
519 task.detach_and_notify_err(window, cx);
520 } else {
521 cx.propagate();
522 }
523 });
524 register_action(editor, window, |editor, action, window, cx| {
525 if let Some(task) = editor.organize_imports(action, window, cx) {
526 task.detach_and_notify_err(window, cx);
527 } else {
528 cx.propagate();
529 }
530 });
531 register_action(editor, window, Editor::restart_language_server);
532 register_action(editor, window, Editor::stop_language_server);
533 register_action(editor, window, Editor::show_character_palette);
534 register_action(editor, window, |editor, action, window, cx| {
535 if let Some(task) = editor.confirm_completion(action, window, cx) {
536 task.detach_and_notify_err(window, cx);
537 } else {
538 cx.propagate();
539 }
540 });
541 register_action(editor, window, |editor, action, window, cx| {
542 if let Some(task) = editor.confirm_completion_replace(action, window, cx) {
543 task.detach_and_notify_err(window, cx);
544 } else {
545 cx.propagate();
546 }
547 });
548 register_action(editor, window, |editor, action, window, cx| {
549 if let Some(task) = editor.confirm_completion_insert(action, window, cx) {
550 task.detach_and_notify_err(window, cx);
551 } else {
552 cx.propagate();
553 }
554 });
555 register_action(editor, window, |editor, action, window, cx| {
556 if let Some(task) = editor.compose_completion(action, window, cx) {
557 task.detach_and_notify_err(window, cx);
558 } else {
559 cx.propagate();
560 }
561 });
562 register_action(editor, window, |editor, action, window, cx| {
563 if let Some(task) = editor.confirm_code_action(action, window, cx) {
564 task.detach_and_notify_err(window, cx);
565 } else {
566 cx.propagate();
567 }
568 });
569 register_action(editor, window, |editor, action, window, cx| {
570 if let Some(task) = editor.rename(action, window, cx) {
571 task.detach_and_notify_err(window, cx);
572 } else {
573 cx.propagate();
574 }
575 });
576 register_action(editor, window, |editor, action, window, cx| {
577 if let Some(task) = editor.confirm_rename(action, window, cx) {
578 task.detach_and_notify_err(window, cx);
579 } else {
580 cx.propagate();
581 }
582 });
583 register_action(editor, window, |editor, action, window, cx| {
584 if let Some(task) = editor.find_all_references(action, window, cx) {
585 task.detach_and_log_err(cx);
586 } else {
587 cx.propagate();
588 }
589 });
590 register_action(editor, window, Editor::show_signature_help);
591 register_action(editor, window, Editor::signature_help_prev);
592 register_action(editor, window, Editor::signature_help_next);
593 register_action(editor, window, Editor::show_edit_prediction);
594 register_action(editor, window, Editor::context_menu_first);
595 register_action(editor, window, Editor::context_menu_prev);
596 register_action(editor, window, Editor::context_menu_next);
597 register_action(editor, window, Editor::context_menu_last);
598 register_action(editor, window, Editor::display_cursor_names);
599 register_action(editor, window, Editor::unique_lines_case_insensitive);
600 register_action(editor, window, Editor::unique_lines_case_sensitive);
601 register_action(editor, window, Editor::accept_next_word_edit_prediction);
602 register_action(editor, window, Editor::accept_next_line_edit_prediction);
603 register_action(editor, window, Editor::accept_edit_prediction);
604 register_action(editor, window, Editor::restore_file);
605 register_action(editor, window, Editor::git_restore);
606 register_action(editor, window, Editor::apply_all_diff_hunks);
607 register_action(editor, window, Editor::apply_selected_diff_hunks);
608 register_action(editor, window, Editor::open_active_item_in_terminal);
609 register_action(editor, window, Editor::reload_file);
610 register_action(editor, window, Editor::spawn_nearest_task);
611 register_action(editor, window, Editor::insert_uuid_v4);
612 register_action(editor, window, Editor::insert_uuid_v7);
613 register_action(editor, window, Editor::open_selections_in_multibuffer);
614 register_action(editor, window, Editor::toggle_breakpoint);
615 register_action(editor, window, Editor::edit_log_breakpoint);
616 register_action(editor, window, Editor::enable_breakpoint);
617 register_action(editor, window, Editor::disable_breakpoint);
618 register_action(editor, window, Editor::toggle_read_only);
619 if editor.read(cx).enable_wrap_selections_in_tag(cx) {
620 register_action(editor, window, Editor::wrap_selections_in_tag);
621 }
622 }
623
624 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
625 let position_map = layout.position_map.clone();
626 window.on_key_event({
627 let editor = self.editor.clone();
628 move |event: &ModifiersChangedEvent, phase, window, cx| {
629 if phase != DispatchPhase::Bubble {
630 return;
631 }
632 editor.update(cx, |editor, cx| {
633 let inlay_hint_settings = inlay_hint_settings(
634 editor.selections.newest_anchor().head(),
635 &editor.buffer.read(cx).snapshot(cx),
636 cx,
637 );
638
639 if let Some(inlay_modifiers) = inlay_hint_settings
640 .toggle_on_modifiers_press
641 .as_ref()
642 .filter(|modifiers| modifiers.modified())
643 {
644 editor.refresh_inlay_hints(
645 InlayHintRefreshReason::ModifiersChanged(
646 inlay_modifiers == &event.modifiers,
647 ),
648 cx,
649 );
650 }
651
652 if editor.hover_state.focused(window, cx) {
653 return;
654 }
655
656 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
657 })
658 }
659 });
660 }
661
662 fn mouse_left_down(
663 editor: &mut Editor,
664 event: &MouseDownEvent,
665 position_map: &PositionMap,
666 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
667 window: &mut Window,
668 cx: &mut Context<Editor>,
669 ) {
670 if window.default_prevented() {
671 return;
672 }
673
674 let text_hitbox = &position_map.text_hitbox;
675 let gutter_hitbox = &position_map.gutter_hitbox;
676 let point_for_position = position_map.point_for_position(event.position);
677 let mut click_count = event.click_count;
678 let mut modifiers = event.modifiers;
679
680 if let Some(hovered_hunk) =
681 position_map
682 .display_hunks
683 .iter()
684 .find_map(|(hunk, hunk_hitbox)| match hunk {
685 DisplayDiffHunk::Folded { .. } => None,
686 DisplayDiffHunk::Unfolded {
687 multi_buffer_range, ..
688 } => hunk_hitbox
689 .as_ref()
690 .is_some_and(|hitbox| hitbox.is_hovered(window))
691 .then(|| multi_buffer_range.clone()),
692 })
693 {
694 editor.toggle_single_diff_hunk(hovered_hunk, cx);
695 cx.notify();
696 return;
697 } else if gutter_hitbox.is_hovered(window) {
698 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
699 } else if !text_hitbox.is_hovered(window) {
700 return;
701 }
702
703 if EditorSettings::get_global(cx)
704 .drag_and_drop_selection
705 .enabled
706 && click_count == 1
707 && !modifiers.shift
708 {
709 let newest_anchor = editor.selections.newest_anchor();
710 let snapshot = editor.snapshot(window, cx);
711 let selection = newest_anchor.map(|anchor| anchor.to_display_point(&snapshot));
712 if point_for_position.intersects_selection(&selection) {
713 editor.selection_drag_state = SelectionDragState::ReadyToDrag {
714 selection: newest_anchor.clone(),
715 click_position: event.position,
716 mouse_down_time: Instant::now(),
717 };
718 cx.stop_propagation();
719 return;
720 }
721 }
722
723 let is_singleton = editor.buffer().read(cx).is_singleton();
724
725 if click_count == 2 && !is_singleton {
726 match EditorSettings::get_global(cx).double_click_in_multibuffer {
727 DoubleClickInMultibuffer::Select => {
728 // do nothing special on double click, all selection logic is below
729 }
730 DoubleClickInMultibuffer::Open => {
731 if modifiers.alt {
732 // if double click is made with alt, pretend it's a regular double click without opening and alt,
733 // and run the selection logic.
734 modifiers.alt = false;
735 } else {
736 let scroll_position_row = position_map.scroll_position.y;
737 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
738 / position_map.line_height)
739 as f64
740 + position_map.scroll_position.y)
741 as u32;
742 let multi_buffer_row = position_map
743 .snapshot
744 .display_point_to_point(
745 DisplayPoint::new(DisplayRow(display_row), 0),
746 Bias::Right,
747 )
748 .row;
749 let line_offset_from_top = display_row - scroll_position_row as u32;
750 // if double click is made without alt, open the corresponding excerp
751 editor.open_excerpts_common(
752 Some(JumpData::MultiBufferRow {
753 row: MultiBufferRow(multi_buffer_row),
754 line_offset_from_top,
755 }),
756 false,
757 window,
758 cx,
759 );
760 return;
761 }
762 }
763 }
764 }
765
766 if !is_singleton {
767 let display_row = (ScrollPixelOffset::from(
768 (event.position - gutter_hitbox.bounds.origin).y / position_map.line_height,
769 ) + position_map.scroll_position.y) as u32;
770 let multi_buffer_row = position_map
771 .snapshot
772 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
773 .row;
774 if line_numbers
775 .get(&MultiBufferRow(multi_buffer_row))
776 .is_some_and(|line_layout| {
777 line_layout.segments.iter().any(|segment| {
778 segment
779 .hitbox
780 .as_ref()
781 .is_some_and(|hitbox| hitbox.contains(&event.position))
782 })
783 })
784 {
785 let line_offset_from_top = display_row - position_map.scroll_position.y as u32;
786
787 editor.open_excerpts_common(
788 Some(JumpData::MultiBufferRow {
789 row: MultiBufferRow(multi_buffer_row),
790 line_offset_from_top,
791 }),
792 modifiers.alt,
793 window,
794 cx,
795 );
796 cx.stop_propagation();
797 return;
798 }
799 }
800
801 let position = point_for_position.previous_valid;
802 if let Some(mode) = Editor::columnar_selection_mode(&modifiers, cx) {
803 editor.select(
804 SelectPhase::BeginColumnar {
805 position,
806 reset: match mode {
807 ColumnarMode::FromMouse => true,
808 ColumnarMode::FromSelection => false,
809 },
810 mode,
811 goal_column: point_for_position.exact_unclipped.column(),
812 },
813 window,
814 cx,
815 );
816 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
817 {
818 editor.select(
819 SelectPhase::Extend {
820 position,
821 click_count,
822 },
823 window,
824 cx,
825 );
826 } else {
827 editor.select(
828 SelectPhase::Begin {
829 position,
830 add: Editor::is_alt_pressed(&modifiers, cx),
831 click_count,
832 },
833 window,
834 cx,
835 );
836 }
837 cx.stop_propagation();
838 }
839
840 fn mouse_right_down(
841 editor: &mut Editor,
842 event: &MouseDownEvent,
843 position_map: &PositionMap,
844 window: &mut Window,
845 cx: &mut Context<Editor>,
846 ) {
847 if position_map.gutter_hitbox.is_hovered(window) {
848 let gutter_right_padding = editor.gutter_dimensions.right_padding;
849 let hitbox = &position_map.gutter_hitbox;
850
851 if event.position.x <= hitbox.bounds.right() - gutter_right_padding {
852 let point_for_position = position_map.point_for_position(event.position);
853 editor.set_breakpoint_context_menu(
854 point_for_position.previous_valid.row(),
855 None,
856 event.position,
857 window,
858 cx,
859 );
860 }
861 return;
862 }
863
864 if !position_map.text_hitbox.is_hovered(window) {
865 return;
866 }
867
868 let point_for_position = position_map.point_for_position(event.position);
869 mouse_context_menu::deploy_context_menu(
870 editor,
871 Some(event.position),
872 point_for_position.previous_valid,
873 window,
874 cx,
875 );
876 cx.stop_propagation();
877 }
878
879 fn mouse_middle_down(
880 editor: &mut Editor,
881 event: &MouseDownEvent,
882 position_map: &PositionMap,
883 window: &mut Window,
884 cx: &mut Context<Editor>,
885 ) {
886 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
887 return;
888 }
889
890 let point_for_position = position_map.point_for_position(event.position);
891 let position = point_for_position.previous_valid;
892
893 editor.select(
894 SelectPhase::BeginColumnar {
895 position,
896 reset: true,
897 mode: ColumnarMode::FromMouse,
898 goal_column: point_for_position.exact_unclipped.column(),
899 },
900 window,
901 cx,
902 );
903 }
904
905 fn mouse_up(
906 editor: &mut Editor,
907 event: &MouseUpEvent,
908 position_map: &PositionMap,
909 window: &mut Window,
910 cx: &mut Context<Editor>,
911 ) {
912 let text_hitbox = &position_map.text_hitbox;
913 let end_selection = editor.has_pending_selection();
914 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
915 let point_for_position = position_map.point_for_position(event.position);
916
917 match editor.selection_drag_state {
918 SelectionDragState::ReadyToDrag {
919 selection: _,
920 ref click_position,
921 mouse_down_time: _,
922 } => {
923 if event.position == *click_position {
924 editor.select(
925 SelectPhase::Begin {
926 position: point_for_position.previous_valid,
927 add: false,
928 click_count: 1, // ready to drag state only occurs on click count 1
929 },
930 window,
931 cx,
932 );
933 editor.selection_drag_state = SelectionDragState::None;
934 cx.stop_propagation();
935 return;
936 } else {
937 debug_panic!("drag state can never be in ready state after drag")
938 }
939 }
940 SelectionDragState::Dragging { ref selection, .. } => {
941 let snapshot = editor.snapshot(window, cx);
942 let selection_display = selection.map(|anchor| anchor.to_display_point(&snapshot));
943 if !point_for_position.intersects_selection(&selection_display)
944 && text_hitbox.is_hovered(window)
945 {
946 let is_cut = !(cfg!(target_os = "macos") && event.modifiers.alt
947 || cfg!(not(target_os = "macos")) && event.modifiers.control);
948 editor.move_selection_on_drop(
949 &selection.clone(),
950 point_for_position.previous_valid,
951 is_cut,
952 window,
953 cx,
954 );
955 }
956 editor.selection_drag_state = SelectionDragState::None;
957 cx.stop_propagation();
958 cx.notify();
959 return;
960 }
961 _ => {}
962 }
963
964 if end_selection {
965 editor.select(SelectPhase::End, window, cx);
966 }
967
968 if end_selection && pending_nonempty_selections {
969 cx.stop_propagation();
970 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
971 && event.button == MouseButton::Middle
972 {
973 #[allow(
974 clippy::collapsible_if,
975 clippy::needless_return,
976 reason = "The cfg-block below makes this a false positive"
977 )]
978 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
979 return;
980 }
981
982 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
983 if EditorSettings::get_global(cx).middle_click_paste {
984 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
985 let point_for_position = position_map.point_for_position(event.position);
986 let position = point_for_position.previous_valid;
987
988 editor.select(
989 SelectPhase::Begin {
990 position,
991 add: false,
992 click_count: 1,
993 },
994 window,
995 cx,
996 );
997 editor.insert(&text, window, cx);
998 }
999 cx.stop_propagation()
1000 }
1001 }
1002 }
1003
1004 fn click(
1005 editor: &mut Editor,
1006 event: &ClickEvent,
1007 position_map: &PositionMap,
1008 window: &mut Window,
1009 cx: &mut Context<Editor>,
1010 ) {
1011 let text_hitbox = &position_map.text_hitbox;
1012 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
1013
1014 let hovered_link_modifier = Editor::is_cmd_or_ctrl_pressed(&event.modifiers(), cx);
1015 let mouse_down_hovered_link_modifier = if let ClickEvent::Mouse(mouse_event) = event {
1016 Editor::is_cmd_or_ctrl_pressed(&mouse_event.down.modifiers, cx)
1017 } else {
1018 true
1019 };
1020
1021 if let Some(mouse_position) = event.mouse_position()
1022 && !pending_nonempty_selections
1023 && hovered_link_modifier
1024 && mouse_down_hovered_link_modifier
1025 && text_hitbox.is_hovered(window)
1026 {
1027 let point = position_map.point_for_position(mouse_position);
1028 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
1029 editor.selection_drag_state = SelectionDragState::None;
1030
1031 cx.stop_propagation();
1032 }
1033 }
1034
1035 fn pressure_click(
1036 editor: &mut Editor,
1037 event: &MousePressureEvent,
1038 position_map: &PositionMap,
1039 window: &mut Window,
1040 cx: &mut Context<Editor>,
1041 ) {
1042 let text_hitbox = &position_map.text_hitbox;
1043 let force_click_possible =
1044 matches!(editor.prev_pressure_stage, Some(PressureStage::Normal))
1045 && event.stage == PressureStage::Force;
1046
1047 editor.prev_pressure_stage = Some(event.stage);
1048
1049 if force_click_possible && text_hitbox.is_hovered(window) {
1050 let point = position_map.point_for_position(event.position);
1051 editor.handle_click_hovered_link(point, event.modifiers, window, cx);
1052 editor.selection_drag_state = SelectionDragState::None;
1053 cx.stop_propagation();
1054 }
1055 }
1056
1057 fn mouse_dragged(
1058 editor: &mut Editor,
1059 event: &MouseMoveEvent,
1060 position_map: &PositionMap,
1061 window: &mut Window,
1062 cx: &mut Context<Editor>,
1063 ) {
1064 if !editor.has_pending_selection()
1065 && matches!(editor.selection_drag_state, SelectionDragState::None)
1066 {
1067 return;
1068 }
1069
1070 let point_for_position = position_map.point_for_position(event.position);
1071 let text_hitbox = &position_map.text_hitbox;
1072
1073 let scroll_delta = {
1074 let text_bounds = text_hitbox.bounds;
1075 let mut scroll_delta = gpui::Point::<f32>::default();
1076 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
1077 let top = text_bounds.origin.y + vertical_margin;
1078 let bottom = text_bounds.bottom_left().y - vertical_margin;
1079 if event.position.y < top {
1080 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
1081 }
1082 if event.position.y > bottom {
1083 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
1084 }
1085
1086 // We need horizontal width of text
1087 let style = editor.style.clone().unwrap_or_default();
1088 let font_id = window.text_system().resolve_font(&style.text.font());
1089 let font_size = style.text.font_size.to_pixels(window.rem_size());
1090 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
1091
1092 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
1093
1094 let scroll_space: Pixels = scroll_margin_x * em_width;
1095
1096 let left = text_bounds.origin.x + scroll_space;
1097 let right = text_bounds.top_right().x - scroll_space;
1098
1099 if event.position.x < left {
1100 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
1101 }
1102 if event.position.x > right {
1103 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
1104 }
1105 scroll_delta
1106 };
1107
1108 if !editor.has_pending_selection() {
1109 let drop_anchor = position_map
1110 .snapshot
1111 .display_point_to_anchor(point_for_position.previous_valid, Bias::Left);
1112 match editor.selection_drag_state {
1113 SelectionDragState::Dragging {
1114 ref mut drop_cursor,
1115 ref mut hide_drop_cursor,
1116 ..
1117 } => {
1118 drop_cursor.start = drop_anchor;
1119 drop_cursor.end = drop_anchor;
1120 *hide_drop_cursor = !text_hitbox.is_hovered(window);
1121 editor.apply_scroll_delta(scroll_delta, window, cx);
1122 cx.notify();
1123 }
1124 SelectionDragState::ReadyToDrag {
1125 ref selection,
1126 ref click_position,
1127 ref mouse_down_time,
1128 } => {
1129 let drag_and_drop_delay = Duration::from_millis(
1130 EditorSettings::get_global(cx)
1131 .drag_and_drop_selection
1132 .delay
1133 .0,
1134 );
1135 if mouse_down_time.elapsed() >= drag_and_drop_delay {
1136 let drop_cursor = Selection {
1137 id: post_inc(&mut editor.selections.next_selection_id()),
1138 start: drop_anchor,
1139 end: drop_anchor,
1140 reversed: false,
1141 goal: SelectionGoal::None,
1142 };
1143 editor.selection_drag_state = SelectionDragState::Dragging {
1144 selection: selection.clone(),
1145 drop_cursor,
1146 hide_drop_cursor: false,
1147 };
1148 editor.apply_scroll_delta(scroll_delta, window, cx);
1149 cx.notify();
1150 } else {
1151 let click_point = position_map.point_for_position(*click_position);
1152 editor.selection_drag_state = SelectionDragState::None;
1153 editor.select(
1154 SelectPhase::Begin {
1155 position: click_point.previous_valid,
1156 add: false,
1157 click_count: 1,
1158 },
1159 window,
1160 cx,
1161 );
1162 editor.select(
1163 SelectPhase::Update {
1164 position: point_for_position.previous_valid,
1165 goal_column: point_for_position.exact_unclipped.column(),
1166 scroll_delta,
1167 },
1168 window,
1169 cx,
1170 );
1171 }
1172 }
1173 _ => {}
1174 }
1175 } else {
1176 editor.select(
1177 SelectPhase::Update {
1178 position: point_for_position.previous_valid,
1179 goal_column: point_for_position.exact_unclipped.column(),
1180 scroll_delta,
1181 },
1182 window,
1183 cx,
1184 );
1185 }
1186 }
1187
1188 pub(crate) fn mouse_moved(
1189 editor: &mut Editor,
1190 event: &MouseMoveEvent,
1191 position_map: &PositionMap,
1192 window: &mut Window,
1193 cx: &mut Context<Editor>,
1194 ) {
1195 let text_hitbox = &position_map.text_hitbox;
1196 let gutter_hitbox = &position_map.gutter_hitbox;
1197 let modifiers = event.modifiers;
1198 let text_hovered = text_hitbox.is_hovered(window);
1199 let gutter_hovered = gutter_hitbox.bounds.contains(&event.position);
1200 editor.set_gutter_hovered(gutter_hovered, cx);
1201 editor.show_mouse_cursor(cx);
1202
1203 let point_for_position = position_map.point_for_position(event.position);
1204 let valid_point = point_for_position.previous_valid;
1205
1206 let hovered_diff_control = position_map
1207 .diff_hunk_control_bounds
1208 .iter()
1209 .find(|(_, bounds)| bounds.contains(&event.position))
1210 .map(|(row, _)| *row);
1211
1212 let hovered_diff_hunk_row = if let Some(control_row) = hovered_diff_control {
1213 Some(control_row)
1214 } else if text_hovered {
1215 let current_row = valid_point.row();
1216 position_map.display_hunks.iter().find_map(|(hunk, _)| {
1217 if let DisplayDiffHunk::Unfolded {
1218 display_row_range, ..
1219 } = hunk
1220 {
1221 if display_row_range.contains(¤t_row) {
1222 Some(display_row_range.start)
1223 } else {
1224 None
1225 }
1226 } else {
1227 None
1228 }
1229 })
1230 } else {
1231 None
1232 };
1233
1234 if hovered_diff_hunk_row != editor.hovered_diff_hunk_row {
1235 editor.hovered_diff_hunk_row = hovered_diff_hunk_row;
1236 cx.notify();
1237 }
1238
1239 if let Some((bounds, buffer_id, blame_entry)) = &position_map.inline_blame_bounds {
1240 let mouse_over_inline_blame = bounds.contains(&event.position);
1241 let mouse_over_popover = editor
1242 .inline_blame_popover
1243 .as_ref()
1244 .and_then(|state| state.popover_bounds)
1245 .is_some_and(|bounds| bounds.contains(&event.position));
1246 let keyboard_grace = editor
1247 .inline_blame_popover
1248 .as_ref()
1249 .is_some_and(|state| state.keyboard_grace);
1250
1251 if mouse_over_inline_blame || mouse_over_popover {
1252 editor.show_blame_popover(*buffer_id, blame_entry, event.position, false, cx);
1253 } else if !keyboard_grace {
1254 editor.hide_blame_popover(false, cx);
1255 }
1256 } else {
1257 let keyboard_grace = editor
1258 .inline_blame_popover
1259 .as_ref()
1260 .is_some_and(|state| state.keyboard_grace);
1261 if !keyboard_grace {
1262 editor.hide_blame_popover(false, cx);
1263 }
1264 }
1265
1266 let breakpoint_indicator = if gutter_hovered {
1267 let buffer_anchor = position_map
1268 .snapshot
1269 .display_point_to_anchor(valid_point, Bias::Left);
1270
1271 if let Some((buffer_snapshot, file)) = position_map
1272 .snapshot
1273 .buffer_snapshot()
1274 .buffer_for_excerpt(buffer_anchor.excerpt_id)
1275 .and_then(|buffer| buffer.file().map(|file| (buffer, file)))
1276 {
1277 let as_point = text::ToPoint::to_point(&buffer_anchor.text_anchor, buffer_snapshot);
1278
1279 let is_visible = editor
1280 .gutter_breakpoint_indicator
1281 .0
1282 .is_some_and(|indicator| indicator.is_active);
1283
1284 let has_existing_breakpoint =
1285 editor.breakpoint_store.as_ref().is_some_and(|store| {
1286 let Some(project) = &editor.project else {
1287 return false;
1288 };
1289 let Some(abs_path) = project.read(cx).absolute_path(
1290 &ProjectPath {
1291 path: file.path().clone(),
1292 worktree_id: file.worktree_id(cx),
1293 },
1294 cx,
1295 ) else {
1296 return false;
1297 };
1298 store
1299 .read(cx)
1300 .breakpoint_at_row(&abs_path, as_point.row, cx)
1301 .is_some()
1302 });
1303
1304 if !is_visible {
1305 editor.gutter_breakpoint_indicator.1.get_or_insert_with(|| {
1306 cx.spawn(async move |this, cx| {
1307 cx.background_executor()
1308 .timer(Duration::from_millis(200))
1309 .await;
1310
1311 this.update(cx, |this, cx| {
1312 if let Some(indicator) = this.gutter_breakpoint_indicator.0.as_mut()
1313 {
1314 indicator.is_active = true;
1315 cx.notify();
1316 }
1317 })
1318 .ok();
1319 })
1320 });
1321 }
1322
1323 Some(PhantomBreakpointIndicator {
1324 display_row: valid_point.row(),
1325 is_active: is_visible,
1326 collides_with_existing_breakpoint: has_existing_breakpoint,
1327 })
1328 } else {
1329 editor.gutter_breakpoint_indicator.1 = None;
1330 None
1331 }
1332 } else {
1333 editor.gutter_breakpoint_indicator.1 = None;
1334 None
1335 };
1336
1337 if &breakpoint_indicator != &editor.gutter_breakpoint_indicator.0 {
1338 editor.gutter_breakpoint_indicator.0 = breakpoint_indicator;
1339 cx.notify();
1340 }
1341
1342 // Don't trigger hover popover if mouse is hovering over context menu
1343 if text_hovered {
1344 editor.update_hovered_link(
1345 point_for_position,
1346 &position_map.snapshot,
1347 modifiers,
1348 window,
1349 cx,
1350 );
1351
1352 if let Some(point) = point_for_position.as_valid() {
1353 let anchor = position_map
1354 .snapshot
1355 .buffer_snapshot()
1356 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
1357 hover_at(editor, Some(anchor), window, cx);
1358 Self::update_visible_cursor(editor, point, position_map, window, cx);
1359 } else {
1360 editor.update_inlay_link_and_hover_points(
1361 &position_map.snapshot,
1362 point_for_position,
1363 modifiers.secondary(),
1364 modifiers.shift,
1365 window,
1366 cx,
1367 );
1368 }
1369 } else {
1370 editor.hide_hovered_link(cx);
1371 hover_at(editor, None, window, cx);
1372 }
1373 }
1374
1375 fn update_visible_cursor(
1376 editor: &mut Editor,
1377 point: DisplayPoint,
1378 position_map: &PositionMap,
1379 window: &mut Window,
1380 cx: &mut Context<Editor>,
1381 ) {
1382 let snapshot = &position_map.snapshot;
1383 let Some(hub) = editor.collaboration_hub() else {
1384 return;
1385 };
1386 let start = snapshot.display_snapshot.clip_point(
1387 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
1388 Bias::Left,
1389 );
1390 let end = snapshot.display_snapshot.clip_point(
1391 DisplayPoint::new(
1392 point.row(),
1393 (point.column() + 1).min(snapshot.line_len(point.row())),
1394 ),
1395 Bias::Right,
1396 );
1397
1398 let range = snapshot
1399 .buffer_snapshot()
1400 .anchor_before(start.to_point(&snapshot.display_snapshot))
1401 ..snapshot
1402 .buffer_snapshot()
1403 .anchor_after(end.to_point(&snapshot.display_snapshot));
1404
1405 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
1406 return;
1407 };
1408 let key = crate::HoveredCursor {
1409 replica_id: selection.replica_id,
1410 selection_id: selection.selection.id,
1411 };
1412 editor.hovered_cursors.insert(
1413 key.clone(),
1414 cx.spawn_in(window, async move |editor, cx| {
1415 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
1416 editor
1417 .update(cx, |editor, cx| {
1418 editor.hovered_cursors.remove(&key);
1419 cx.notify();
1420 })
1421 .ok();
1422 }),
1423 );
1424 cx.notify()
1425 }
1426
1427 fn layout_selections(
1428 &self,
1429 start_anchor: Anchor,
1430 end_anchor: Anchor,
1431 local_selections: &[Selection<Point>],
1432 snapshot: &EditorSnapshot,
1433 start_row: DisplayRow,
1434 end_row: DisplayRow,
1435 window: &mut Window,
1436 cx: &mut App,
1437 ) -> (
1438 Vec<(PlayerColor, Vec<SelectionLayout>)>,
1439 BTreeMap<DisplayRow, LineHighlightSpec>,
1440 Option<DisplayPoint>,
1441 ) {
1442 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1443 let mut active_rows = BTreeMap::new();
1444 let mut newest_selection_head = None;
1445
1446 let Some(editor_with_selections) = self.editor_with_selections(cx) else {
1447 return (selections, active_rows, newest_selection_head);
1448 };
1449
1450 editor_with_selections.update(cx, |editor, cx| {
1451 if editor.show_local_selections {
1452 let mut layouts = Vec::new();
1453 let newest = editor.selections.newest(&editor.display_snapshot(cx));
1454 for selection in local_selections.iter().cloned() {
1455 let is_empty = selection.start == selection.end;
1456 let is_newest = selection == newest;
1457
1458 let layout = SelectionLayout::new(
1459 selection,
1460 editor.selections.line_mode(),
1461 editor.cursor_offset_on_selection,
1462 editor.cursor_shape,
1463 &snapshot.display_snapshot,
1464 is_newest,
1465 editor.leader_id.is_none(),
1466 None,
1467 );
1468 if is_newest {
1469 newest_selection_head = Some(layout.head);
1470 }
1471
1472 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1473 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1474 {
1475 let contains_non_empty_selection = active_rows
1476 .entry(DisplayRow(row))
1477 .or_insert_with(LineHighlightSpec::default);
1478 contains_non_empty_selection.selection |= !is_empty;
1479 }
1480 layouts.push(layout);
1481 }
1482
1483 let mut player = editor.current_user_player_color(cx);
1484 if !editor.is_focused(window) {
1485 const UNFOCUS_EDITOR_SELECTION_OPACITY: f32 = 0.5;
1486 player.selection = player.selection.opacity(UNFOCUS_EDITOR_SELECTION_OPACITY);
1487 }
1488 selections.push((player, layouts));
1489
1490 if let SelectionDragState::Dragging {
1491 ref selection,
1492 ref drop_cursor,
1493 ref hide_drop_cursor,
1494 } = editor.selection_drag_state
1495 && !hide_drop_cursor
1496 && (drop_cursor
1497 .start
1498 .cmp(&selection.start, &snapshot.buffer_snapshot())
1499 .eq(&Ordering::Less)
1500 || drop_cursor
1501 .end
1502 .cmp(&selection.end, &snapshot.buffer_snapshot())
1503 .eq(&Ordering::Greater))
1504 {
1505 let drag_cursor_layout = SelectionLayout::new(
1506 drop_cursor.clone(),
1507 false,
1508 editor.cursor_offset_on_selection,
1509 CursorShape::Bar,
1510 &snapshot.display_snapshot,
1511 false,
1512 false,
1513 None,
1514 );
1515 let absent_color = cx.theme().players().absent();
1516 selections.push((absent_color, vec![drag_cursor_layout]));
1517 }
1518 }
1519
1520 if let Some(collaboration_hub) = &editor.collaboration_hub {
1521 // When following someone, render the local selections in their color.
1522 if let Some(leader_id) = editor.leader_id {
1523 match leader_id {
1524 CollaboratorId::PeerId(peer_id) => {
1525 if let Some(collaborator) =
1526 collaboration_hub.collaborators(cx).get(&peer_id)
1527 && let Some(participant_index) = collaboration_hub
1528 .user_participant_indices(cx)
1529 .get(&collaborator.user_id)
1530 && let Some((local_selection_style, _)) = selections.first_mut()
1531 {
1532 *local_selection_style = cx
1533 .theme()
1534 .players()
1535 .color_for_participant(participant_index.0);
1536 }
1537 }
1538 CollaboratorId::Agent => {
1539 if let Some((local_selection_style, _)) = selections.first_mut() {
1540 *local_selection_style = cx.theme().players().agent();
1541 }
1542 }
1543 }
1544 }
1545
1546 let mut remote_selections = HashMap::default();
1547 for selection in snapshot.remote_selections_in_range(
1548 &(start_anchor..end_anchor),
1549 collaboration_hub.as_ref(),
1550 cx,
1551 ) {
1552 // Don't re-render the leader's selections, since the local selections
1553 // match theirs.
1554 if Some(selection.collaborator_id) == editor.leader_id {
1555 continue;
1556 }
1557 let key = HoveredCursor {
1558 replica_id: selection.replica_id,
1559 selection_id: selection.selection.id,
1560 };
1561
1562 let is_shown =
1563 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1564
1565 remote_selections
1566 .entry(selection.replica_id)
1567 .or_insert((selection.color, Vec::new()))
1568 .1
1569 .push(SelectionLayout::new(
1570 selection.selection,
1571 selection.line_mode,
1572 editor.cursor_offset_on_selection,
1573 selection.cursor_shape,
1574 &snapshot.display_snapshot,
1575 false,
1576 false,
1577 if is_shown { selection.user_name } else { None },
1578 ));
1579 }
1580
1581 selections.extend(remote_selections.into_values());
1582 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1583 let cursor_offset_on_selection = editor.cursor_offset_on_selection;
1584
1585 let layouts = snapshot
1586 .buffer_snapshot()
1587 .selections_in_range(&(start_anchor..end_anchor), true)
1588 .map(move |(_, line_mode, cursor_shape, selection)| {
1589 SelectionLayout::new(
1590 selection,
1591 line_mode,
1592 cursor_offset_on_selection,
1593 cursor_shape,
1594 &snapshot.display_snapshot,
1595 false,
1596 false,
1597 None,
1598 )
1599 })
1600 .collect::<Vec<_>>();
1601 let player = editor.current_user_player_color(cx);
1602 selections.push((player, layouts));
1603 }
1604 });
1605
1606 #[cfg(debug_assertions)]
1607 Self::layout_debug_ranges(
1608 &mut selections,
1609 start_anchor..end_anchor,
1610 &snapshot.display_snapshot,
1611 cx,
1612 );
1613
1614 (selections, active_rows, newest_selection_head)
1615 }
1616
1617 fn collect_cursors(
1618 &self,
1619 snapshot: &EditorSnapshot,
1620 cx: &mut App,
1621 ) -> Vec<(DisplayPoint, Hsla)> {
1622 let editor = self.editor.read(cx);
1623 let mut cursors = Vec::new();
1624 let mut skip_local = false;
1625 let mut add_cursor = |anchor: Anchor, color| {
1626 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1627 };
1628 // Remote cursors
1629 if let Some(collaboration_hub) = &editor.collaboration_hub {
1630 for remote_selection in snapshot.remote_selections_in_range(
1631 &(Anchor::min()..Anchor::max()),
1632 collaboration_hub.deref(),
1633 cx,
1634 ) {
1635 add_cursor(
1636 remote_selection.selection.head(),
1637 remote_selection.color.cursor,
1638 );
1639 if Some(remote_selection.collaborator_id) == editor.leader_id {
1640 skip_local = true;
1641 }
1642 }
1643 }
1644 // Local cursors
1645 if !skip_local {
1646 let color = cx.theme().players().local().cursor;
1647 editor
1648 .selections
1649 .disjoint_anchors()
1650 .iter()
1651 .for_each(|selection| {
1652 add_cursor(selection.head(), color);
1653 });
1654 if let Some(ref selection) = editor.selections.pending_anchor() {
1655 add_cursor(selection.head(), color);
1656 }
1657 }
1658 cursors
1659 }
1660
1661 fn layout_visible_cursors(
1662 &self,
1663 snapshot: &EditorSnapshot,
1664 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1665 row_block_types: &HashMap<DisplayRow, bool>,
1666 visible_display_row_range: Range<DisplayRow>,
1667 line_layouts: &[LineWithInvisibles],
1668 text_hitbox: &Hitbox,
1669 content_origin: gpui::Point<Pixels>,
1670 scroll_position: gpui::Point<ScrollOffset>,
1671 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
1672 line_height: Pixels,
1673 em_width: Pixels,
1674 em_advance: Pixels,
1675 autoscroll_containing_element: bool,
1676 window: &mut Window,
1677 cx: &mut App,
1678 ) -> Vec<CursorLayout> {
1679 let mut autoscroll_bounds = None;
1680 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1681 let mut cursors = Vec::new();
1682
1683 let show_local_cursors = editor.show_local_cursors(window, cx);
1684
1685 for (player_color, selections) in selections {
1686 for selection in selections {
1687 let cursor_position = selection.head;
1688
1689 let in_range = visible_display_row_range.contains(&cursor_position.row());
1690 if (selection.is_local && !show_local_cursors)
1691 || !in_range
1692 || row_block_types.get(&cursor_position.row()) == Some(&true)
1693 {
1694 continue;
1695 }
1696
1697 let cursor_row_layout = &line_layouts
1698 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1699 let cursor_column = cursor_position.column() as usize;
1700
1701 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1702 let mut block_width =
1703 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1704 if block_width == Pixels::ZERO {
1705 block_width = em_advance;
1706 }
1707 let block_text = if let CursorShape::Block = selection.cursor_shape {
1708 snapshot
1709 .grapheme_at(cursor_position)
1710 .or_else(|| {
1711 if snapshot.is_empty() {
1712 snapshot.placeholder_text().and_then(|s| {
1713 s.graphemes(true).next().map(|s| s.to_string().into())
1714 })
1715 } else {
1716 None
1717 }
1718 })
1719 .map(|text| {
1720 let len = text.len();
1721
1722 let mut font = cursor_row_layout
1723 .font_id_for_index(cursor_column)
1724 .and_then(|cursor_font_id| {
1725 window.text_system().get_font_for_id(cursor_font_id)
1726 })
1727 .unwrap_or(self.style.text.font());
1728 font.features = self.style.text.font_features.clone();
1729
1730 // Invert the text color for the block cursor. Ensure that the text
1731 // color is opaque enough to be visible against the background color.
1732 //
1733 // 0.75 is an arbitrary threshold to determine if the background color is
1734 // opaque enough to use as a text color.
1735 //
1736 // TODO: In the future we should ensure themes have a `text_inverse` color.
1737 let color = if cx.theme().colors().editor_background.a < 0.75 {
1738 match cx.theme().appearance {
1739 Appearance::Dark => Hsla::black(),
1740 Appearance::Light => Hsla::white(),
1741 }
1742 } else {
1743 cx.theme().colors().editor_background
1744 };
1745
1746 window.text_system().shape_line(
1747 text,
1748 cursor_row_layout.font_size,
1749 &[TextRun {
1750 len,
1751 font,
1752 color,
1753 ..Default::default()
1754 }],
1755 None,
1756 )
1757 })
1758 } else {
1759 None
1760 };
1761
1762 let x = cursor_character_x - scroll_pixel_position.x.into();
1763 let y = ((cursor_position.row().as_f64() - scroll_position.y)
1764 * ScrollPixelOffset::from(line_height))
1765 .into();
1766 if selection.is_newest {
1767 editor.pixel_position_of_newest_cursor = Some(point(
1768 text_hitbox.origin.x + x + block_width / 2.,
1769 text_hitbox.origin.y + y + line_height / 2.,
1770 ));
1771
1772 if autoscroll_containing_element {
1773 let top = text_hitbox.origin.y
1774 + ((cursor_position.row().as_f64() - scroll_position.y - 3.)
1775 .max(0.)
1776 * ScrollPixelOffset::from(line_height))
1777 .into();
1778 let left = text_hitbox.origin.x
1779 + ((cursor_position.column() as ScrollOffset
1780 - scroll_position.x
1781 - 3.)
1782 .max(0.)
1783 * ScrollPixelOffset::from(em_width))
1784 .into();
1785
1786 let bottom = text_hitbox.origin.y
1787 + ((cursor_position.row().as_f64() - scroll_position.y + 4.)
1788 * ScrollPixelOffset::from(line_height))
1789 .into();
1790 let right = text_hitbox.origin.x
1791 + ((cursor_position.column() as ScrollOffset - scroll_position.x
1792 + 4.)
1793 * ScrollPixelOffset::from(em_width))
1794 .into();
1795
1796 autoscroll_bounds =
1797 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1798 }
1799 }
1800
1801 let mut cursor = CursorLayout {
1802 color: player_color.cursor,
1803 block_width,
1804 origin: point(x, y),
1805 line_height,
1806 shape: selection.cursor_shape,
1807 block_text,
1808 cursor_name: None,
1809 };
1810 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1811 string: name,
1812 color: self.style.background,
1813 is_top_row: cursor_position.row().0 == 0,
1814 });
1815 cursor.layout(content_origin, cursor_name, window, cx);
1816 cursors.push(cursor);
1817 }
1818 }
1819
1820 cursors
1821 });
1822
1823 if let Some(bounds) = autoscroll_bounds {
1824 window.request_autoscroll(bounds);
1825 }
1826
1827 cursor_layouts
1828 }
1829
1830 fn layout_scrollbars(
1831 &self,
1832 snapshot: &EditorSnapshot,
1833 scrollbar_layout_information: &ScrollbarLayoutInformation,
1834 content_offset: gpui::Point<Pixels>,
1835 scroll_position: gpui::Point<ScrollOffset>,
1836 non_visible_cursors: bool,
1837 right_margin: Pixels,
1838 editor_width: Pixels,
1839 window: &mut Window,
1840 cx: &mut App,
1841 ) -> Option<EditorScrollbars> {
1842 let show_scrollbars = self.editor.read(cx).show_scrollbars;
1843 if (!show_scrollbars.horizontal && !show_scrollbars.vertical)
1844 || self.style.scrollbar_width.is_zero()
1845 {
1846 return None;
1847 }
1848
1849 // If a drag took place after we started dragging the scrollbar,
1850 // cancel the scrollbar drag.
1851 if cx.has_active_drag() {
1852 self.editor.update(cx, |editor, cx| {
1853 editor.scroll_manager.reset_scrollbar_state(cx)
1854 });
1855 }
1856
1857 let editor_settings = EditorSettings::get_global(cx);
1858 let scrollbar_settings = editor_settings.scrollbar;
1859 let show_scrollbars = match scrollbar_settings.show {
1860 ShowScrollbar::Auto => {
1861 let editor = self.editor.read(cx);
1862 let is_singleton = editor.buffer_kind(cx) == ItemBufferKind::Singleton;
1863 // Git
1864 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot().has_diff_hunks())
1865 ||
1866 // Buffer Search Results
1867 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1868 ||
1869 // Selected Text Occurrences
1870 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1871 ||
1872 // Selected Symbol Occurrences
1873 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1874 ||
1875 // Diagnostics
1876 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot().has_diagnostics())
1877 ||
1878 // Cursors out of sight
1879 non_visible_cursors
1880 ||
1881 // Scrollmanager
1882 editor.scroll_manager.scrollbars_visible()
1883 }
1884 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1885 ShowScrollbar::Always => true,
1886 ShowScrollbar::Never => return None,
1887 };
1888
1889 // The horizontal scrollbar is usually slightly offset to align nicely with
1890 // indent guides. However, this offset is not needed if indent guides are
1891 // disabled for the current editor.
1892 let content_offset = self
1893 .editor
1894 .read(cx)
1895 .show_indent_guides
1896 .is_none_or(|should_show| should_show)
1897 .then_some(content_offset)
1898 .unwrap_or_default();
1899
1900 Some(EditorScrollbars::from_scrollbar_axes(
1901 ScrollbarAxes {
1902 horizontal: scrollbar_settings.axes.horizontal
1903 && self.editor.read(cx).show_scrollbars.horizontal,
1904 vertical: scrollbar_settings.axes.vertical
1905 && self.editor.read(cx).show_scrollbars.vertical,
1906 },
1907 scrollbar_layout_information,
1908 content_offset,
1909 scroll_position,
1910 self.style.scrollbar_width,
1911 right_margin,
1912 editor_width,
1913 show_scrollbars,
1914 self.editor.read(cx).scroll_manager.active_scrollbar_state(),
1915 window,
1916 ))
1917 }
1918
1919 fn layout_minimap(
1920 &self,
1921 snapshot: &EditorSnapshot,
1922 minimap_width: Pixels,
1923 scroll_position: gpui::Point<f64>,
1924 scrollbar_layout_information: &ScrollbarLayoutInformation,
1925 scrollbar_layout: Option<&EditorScrollbars>,
1926 window: &mut Window,
1927 cx: &mut App,
1928 ) -> Option<MinimapLayout> {
1929 let minimap_editor = self.editor.read(cx).minimap().cloned()?;
1930
1931 let minimap_settings = EditorSettings::get_global(cx).minimap;
1932
1933 if minimap_settings.on_active_editor() {
1934 let active_editor = self.editor.read(cx).workspace().and_then(|ws| {
1935 ws.read(cx)
1936 .active_pane()
1937 .read(cx)
1938 .active_item()
1939 .and_then(|i| i.act_as::<Editor>(cx))
1940 });
1941 if active_editor.is_some_and(|e| e != self.editor) {
1942 return None;
1943 }
1944 }
1945
1946 if !snapshot.mode.is_full()
1947 || minimap_width.is_zero()
1948 || matches!(
1949 minimap_settings.show,
1950 ShowMinimap::Auto if scrollbar_layout.is_none_or(|layout| !layout.visible)
1951 )
1952 {
1953 return None;
1954 }
1955
1956 const MINIMAP_AXIS: ScrollbarAxis = ScrollbarAxis::Vertical;
1957
1958 let ScrollbarLayoutInformation {
1959 editor_bounds,
1960 scroll_range,
1961 glyph_grid_cell,
1962 } = scrollbar_layout_information;
1963
1964 let line_height = glyph_grid_cell.height;
1965 let scroll_position = scroll_position.along(MINIMAP_AXIS);
1966
1967 let top_right_anchor = scrollbar_layout
1968 .and_then(|layout| layout.vertical.as_ref())
1969 .map(|vertical_scrollbar| vertical_scrollbar.hitbox.origin)
1970 .unwrap_or_else(|| editor_bounds.top_right());
1971
1972 let thumb_state = self
1973 .editor
1974 .read_with(cx, |editor, _| editor.scroll_manager.minimap_thumb_state());
1975
1976 let show_thumb = match minimap_settings.thumb {
1977 MinimapThumb::Always => true,
1978 MinimapThumb::Hover => thumb_state.is_some(),
1979 };
1980
1981 let minimap_bounds = Bounds::from_corner_and_size(
1982 Corner::TopRight,
1983 top_right_anchor,
1984 size(minimap_width, editor_bounds.size.height),
1985 );
1986 let minimap_line_height = self.get_minimap_line_height(
1987 minimap_editor
1988 .read(cx)
1989 .text_style_refinement
1990 .as_ref()
1991 .and_then(|refinement| refinement.font_size)
1992 .unwrap_or(MINIMAP_FONT_SIZE),
1993 window,
1994 cx,
1995 );
1996 let minimap_height = minimap_bounds.size.height;
1997
1998 let visible_editor_lines = (editor_bounds.size.height / line_height) as f64;
1999 let total_editor_lines = (scroll_range.height / line_height) as f64;
2000 let minimap_lines = (minimap_height / minimap_line_height) as f64;
2001
2002 let minimap_scroll_top = MinimapLayout::calculate_minimap_top_offset(
2003 total_editor_lines,
2004 visible_editor_lines,
2005 minimap_lines,
2006 scroll_position,
2007 );
2008
2009 let layout = ScrollbarLayout::for_minimap(
2010 window.insert_hitbox(minimap_bounds, HitboxBehavior::Normal),
2011 visible_editor_lines,
2012 total_editor_lines,
2013 minimap_line_height,
2014 scroll_position,
2015 minimap_scroll_top,
2016 show_thumb,
2017 )
2018 .with_thumb_state(thumb_state);
2019
2020 minimap_editor.update(cx, |editor, cx| {
2021 editor.set_scroll_position(point(0., minimap_scroll_top), window, cx)
2022 });
2023
2024 // Required for the drop shadow to be visible
2025 const PADDING_OFFSET: Pixels = px(4.);
2026
2027 let mut minimap = div()
2028 .size_full()
2029 .shadow_xs()
2030 .px(PADDING_OFFSET)
2031 .child(minimap_editor)
2032 .into_any_element();
2033
2034 let extended_bounds = minimap_bounds.extend(Edges {
2035 right: PADDING_OFFSET,
2036 left: PADDING_OFFSET,
2037 ..Default::default()
2038 });
2039 minimap.layout_as_root(extended_bounds.size.into(), window, cx);
2040 window.with_absolute_element_offset(extended_bounds.origin, |window| {
2041 minimap.prepaint(window, cx)
2042 });
2043
2044 Some(MinimapLayout {
2045 minimap,
2046 thumb_layout: layout,
2047 thumb_border_style: minimap_settings.thumb_border,
2048 minimap_line_height,
2049 minimap_scroll_top,
2050 max_scroll_top: total_editor_lines,
2051 })
2052 }
2053
2054 fn get_minimap_line_height(
2055 &self,
2056 font_size: AbsoluteLength,
2057 window: &mut Window,
2058 cx: &mut App,
2059 ) -> Pixels {
2060 let rem_size = self.rem_size(cx).unwrap_or(window.rem_size());
2061 let mut text_style = self.style.text.clone();
2062 text_style.font_size = font_size;
2063 text_style.line_height_in_pixels(rem_size)
2064 }
2065
2066 fn get_minimap_width(
2067 &self,
2068 minimap_settings: &Minimap,
2069 scrollbars_shown: bool,
2070 text_width: Pixels,
2071 em_width: Pixels,
2072 font_size: Pixels,
2073 rem_size: Pixels,
2074 cx: &App,
2075 ) -> Option<Pixels> {
2076 if minimap_settings.show == ShowMinimap::Auto && !scrollbars_shown {
2077 return None;
2078 }
2079
2080 let minimap_font_size = self.editor.read_with(cx, |editor, cx| {
2081 editor.minimap().map(|minimap_editor| {
2082 minimap_editor
2083 .read(cx)
2084 .text_style_refinement
2085 .as_ref()
2086 .and_then(|refinement| refinement.font_size)
2087 .unwrap_or(MINIMAP_FONT_SIZE)
2088 })
2089 })?;
2090
2091 let minimap_em_width = em_width * (minimap_font_size.to_pixels(rem_size) / font_size);
2092
2093 let minimap_width = (text_width * MinimapLayout::MINIMAP_WIDTH_PCT)
2094 .min(minimap_em_width * minimap_settings.max_width_columns.get() as f32);
2095
2096 (minimap_width >= minimap_em_width * MinimapLayout::MINIMAP_MIN_WIDTH_COLUMNS)
2097 .then_some(minimap_width)
2098 }
2099
2100 fn prepaint_crease_toggles(
2101 &self,
2102 crease_toggles: &mut [Option<AnyElement>],
2103 line_height: Pixels,
2104 gutter_dimensions: &GutterDimensions,
2105 gutter_settings: crate::editor_settings::Gutter,
2106 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2107 gutter_hitbox: &Hitbox,
2108 window: &mut Window,
2109 cx: &mut App,
2110 ) {
2111 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
2112 if let Some(crease_toggle) = crease_toggle {
2113 debug_assert!(gutter_settings.folds);
2114 let available_space = size(
2115 AvailableSpace::MinContent,
2116 AvailableSpace::Definite(line_height * 0.55),
2117 );
2118 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
2119
2120 let position = point(
2121 gutter_dimensions.width - gutter_dimensions.right_padding,
2122 ix as f32 * line_height
2123 - (scroll_pixel_position.y % ScrollPixelOffset::from(line_height)).into(),
2124 );
2125 let centering_offset = point(
2126 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
2127 (line_height - crease_toggle_size.height) / 2.,
2128 );
2129 let origin = gutter_hitbox.origin + position + centering_offset;
2130 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
2131 }
2132 }
2133 }
2134
2135 fn prepaint_expand_toggles(
2136 &self,
2137 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
2138 window: &mut Window,
2139 cx: &mut App,
2140 ) {
2141 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
2142 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
2143 expand_toggle.layout_as_root(available_space, window, cx);
2144 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
2145 }
2146 }
2147
2148 fn prepaint_crease_trailers(
2149 &self,
2150 trailers: Vec<Option<AnyElement>>,
2151 lines: &[LineWithInvisibles],
2152 line_height: Pixels,
2153 content_origin: gpui::Point<Pixels>,
2154 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2155 em_width: Pixels,
2156 window: &mut Window,
2157 cx: &mut App,
2158 ) -> Vec<Option<CreaseTrailerLayout>> {
2159 trailers
2160 .into_iter()
2161 .enumerate()
2162 .map(|(ix, element)| {
2163 let mut element = element?;
2164 let available_space = size(
2165 AvailableSpace::MinContent,
2166 AvailableSpace::Definite(line_height),
2167 );
2168 let size = element.layout_as_root(available_space, window, cx);
2169
2170 let line = &lines[ix];
2171 let padding = if line.width == Pixels::ZERO {
2172 Pixels::ZERO
2173 } else {
2174 4. * em_width
2175 };
2176 let position = point(
2177 Pixels::from(scroll_pixel_position.x) + line.width + padding,
2178 ix as f32 * line_height
2179 - (scroll_pixel_position.y % ScrollPixelOffset::from(line_height)).into(),
2180 );
2181 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
2182 let origin = content_origin + position + centering_offset;
2183 element.prepaint_as_root(origin, available_space, window, cx);
2184 Some(CreaseTrailerLayout {
2185 element,
2186 bounds: Bounds::new(origin, size),
2187 })
2188 })
2189 .collect()
2190 }
2191
2192 // Folds contained in a hunk are ignored apart from shrinking visual size
2193 // If a fold contains any hunks then that fold line is marked as modified
2194 fn layout_gutter_diff_hunks(
2195 &self,
2196 line_height: Pixels,
2197 gutter_hitbox: &Hitbox,
2198 display_rows: Range<DisplayRow>,
2199 snapshot: &EditorSnapshot,
2200 window: &mut Window,
2201 cx: &mut App,
2202 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
2203 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
2204 let mut display_hunks = snapshot
2205 .display_diff_hunks_for_rows(display_rows, folded_buffers)
2206 .map(|hunk| (hunk, None))
2207 .collect::<Vec<_>>();
2208 let git_gutter_setting = ProjectSettings::get_global(cx).git.git_gutter;
2209 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
2210 for (hunk, hitbox) in &mut display_hunks {
2211 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
2212 let hunk_bounds =
2213 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
2214 *hitbox = Some(window.insert_hitbox(hunk_bounds, HitboxBehavior::BlockMouse));
2215 }
2216 }
2217 }
2218
2219 display_hunks
2220 }
2221
2222 fn layout_inline_diagnostics(
2223 &self,
2224 line_layouts: &[LineWithInvisibles],
2225 crease_trailers: &[Option<CreaseTrailerLayout>],
2226 row_block_types: &HashMap<DisplayRow, bool>,
2227 content_origin: gpui::Point<Pixels>,
2228 scroll_position: gpui::Point<ScrollOffset>,
2229 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2230 edit_prediction_popover_origin: Option<gpui::Point<Pixels>>,
2231 start_row: DisplayRow,
2232 end_row: DisplayRow,
2233 line_height: Pixels,
2234 em_width: Pixels,
2235 style: &EditorStyle,
2236 window: &mut Window,
2237 cx: &mut App,
2238 ) -> HashMap<DisplayRow, AnyElement> {
2239 let max_severity = match self
2240 .editor
2241 .read(cx)
2242 .inline_diagnostics_enabled()
2243 .then(|| {
2244 ProjectSettings::get_global(cx)
2245 .diagnostics
2246 .inline
2247 .max_severity
2248 .unwrap_or_else(|| self.editor.read(cx).diagnostics_max_severity)
2249 .into_lsp()
2250 })
2251 .flatten()
2252 {
2253 Some(max_severity) => max_severity,
2254 None => return HashMap::default(),
2255 };
2256
2257 let active_diagnostics_group =
2258 if let ActiveDiagnostic::Group(group) = &self.editor.read(cx).active_diagnostics {
2259 Some(group.group_id)
2260 } else {
2261 None
2262 };
2263
2264 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
2265 let snapshot = editor.snapshot(window, cx);
2266 editor
2267 .inline_diagnostics
2268 .iter()
2269 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
2270 .filter(|(_, diagnostic)| match active_diagnostics_group {
2271 Some(active_diagnostics_group) => {
2272 // Active diagnostics are all shown in the editor already, no need to display them inline
2273 diagnostic.group_id != active_diagnostics_group
2274 }
2275 None => true,
2276 })
2277 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
2278 .skip_while(|(point, _)| point.row() < start_row)
2279 .take_while(|(point, _)| point.row() < end_row)
2280 .filter(|(point, _)| !row_block_types.contains_key(&point.row()))
2281 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
2282 acc.entry(point.row())
2283 .or_insert_with(Vec::new)
2284 .push(diagnostic);
2285 acc
2286 })
2287 });
2288
2289 if diagnostics_by_rows.is_empty() {
2290 return HashMap::default();
2291 }
2292
2293 let severity_to_color = |sev: &lsp::DiagnosticSeverity| match sev {
2294 &lsp::DiagnosticSeverity::ERROR => Color::Error,
2295 &lsp::DiagnosticSeverity::WARNING => Color::Warning,
2296 &lsp::DiagnosticSeverity::INFORMATION => Color::Info,
2297 &lsp::DiagnosticSeverity::HINT => Color::Hint,
2298 _ => Color::Error,
2299 };
2300
2301 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
2302 let min_x = column_pixels(
2303 &self.style,
2304 ProjectSettings::get_global(cx)
2305 .diagnostics
2306 .inline
2307 .min_column as usize,
2308 window,
2309 );
2310
2311 let mut elements = HashMap::default();
2312 for (row, mut diagnostics) in diagnostics_by_rows {
2313 diagnostics.sort_by_key(|diagnostic| {
2314 (
2315 diagnostic.severity,
2316 std::cmp::Reverse(diagnostic.is_primary),
2317 diagnostic.start.row,
2318 diagnostic.start.column,
2319 )
2320 });
2321
2322 let Some(diagnostic_to_render) = diagnostics
2323 .iter()
2324 .find(|diagnostic| diagnostic.is_primary)
2325 .or_else(|| diagnostics.first())
2326 else {
2327 continue;
2328 };
2329
2330 let pos_y = content_origin.y + line_height * (row.0 as f64 - scroll_position.y) as f32;
2331
2332 let window_ix = row.0.saturating_sub(start_row.0) as usize;
2333 let pos_x = {
2334 let crease_trailer_layout = &crease_trailers[window_ix];
2335 let line_layout = &line_layouts[window_ix];
2336
2337 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
2338 crease_trailer.bounds.right()
2339 } else {
2340 Pixels::from(
2341 ScrollPixelOffset::from(content_origin.x + line_layout.width)
2342 - scroll_pixel_position.x,
2343 )
2344 };
2345
2346 let padded_line = line_end + padding;
2347 let min_start = Pixels::from(
2348 ScrollPixelOffset::from(content_origin.x + min_x) - scroll_pixel_position.x,
2349 );
2350
2351 cmp::max(padded_line, min_start)
2352 };
2353
2354 let behind_edit_prediction_popover = edit_prediction_popover_origin
2355 .as_ref()
2356 .is_some_and(|edit_prediction_popover_origin| {
2357 (pos_y..pos_y + line_height).contains(&edit_prediction_popover_origin.y)
2358 });
2359 let opacity = if behind_edit_prediction_popover {
2360 0.5
2361 } else {
2362 1.0
2363 };
2364
2365 let mut element = h_flex()
2366 .id(("diagnostic", row.0))
2367 .h(line_height)
2368 .w_full()
2369 .px_1()
2370 .rounded_xs()
2371 .opacity(opacity)
2372 .bg(severity_to_color(&diagnostic_to_render.severity)
2373 .color(cx)
2374 .opacity(0.05))
2375 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
2376 .text_sm()
2377 .font(style.text.font())
2378 .child(diagnostic_to_render.message.clone())
2379 .into_any();
2380
2381 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
2382
2383 elements.insert(row, element);
2384 }
2385
2386 elements
2387 }
2388
2389 fn layout_inline_code_actions(
2390 &self,
2391 display_point: DisplayPoint,
2392 content_origin: gpui::Point<Pixels>,
2393 scroll_position: gpui::Point<ScrollOffset>,
2394 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2395 line_height: Pixels,
2396 snapshot: &EditorSnapshot,
2397 window: &mut Window,
2398 cx: &mut App,
2399 ) -> Option<AnyElement> {
2400 if !snapshot
2401 .show_code_actions
2402 .unwrap_or(EditorSettings::get_global(cx).inline_code_actions)
2403 {
2404 return None;
2405 }
2406
2407 let icon_size = ui::IconSize::XSmall;
2408 let mut button = self.editor.update(cx, |editor, cx| {
2409 editor.available_code_actions.as_ref()?;
2410 let active = editor
2411 .context_menu
2412 .borrow()
2413 .as_ref()
2414 .and_then(|menu| {
2415 if let crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2416 deployed_from,
2417 ..
2418 }) = menu
2419 {
2420 deployed_from.as_ref()
2421 } else {
2422 None
2423 }
2424 })
2425 .is_some_and(|source| matches!(source, CodeActionSource::Indicator(..)));
2426 Some(editor.render_inline_code_actions(icon_size, display_point.row(), active, cx))
2427 })?;
2428
2429 let buffer_point = display_point.to_point(&snapshot.display_snapshot);
2430
2431 // do not show code action for folded line
2432 if snapshot.is_line_folded(MultiBufferRow(buffer_point.row)) {
2433 return None;
2434 }
2435
2436 // do not show code action for blank line with cursor
2437 let line_indent = snapshot
2438 .display_snapshot
2439 .buffer_snapshot()
2440 .line_indent_for_row(MultiBufferRow(buffer_point.row));
2441 if line_indent.is_line_blank() {
2442 return None;
2443 }
2444
2445 const INLINE_SLOT_CHAR_LIMIT: u32 = 4;
2446 const MAX_ALTERNATE_DISTANCE: u32 = 8;
2447
2448 let excerpt_id = snapshot
2449 .display_snapshot
2450 .buffer_snapshot()
2451 .excerpt_containing(buffer_point..buffer_point)
2452 .map(|excerpt| excerpt.id());
2453
2454 let is_valid_row = |row_candidate: u32| -> bool {
2455 // move to other row if folded row
2456 if snapshot.is_line_folded(MultiBufferRow(row_candidate)) {
2457 return false;
2458 }
2459 if buffer_point.row == row_candidate {
2460 // move to other row if cursor is in slot
2461 if buffer_point.column < INLINE_SLOT_CHAR_LIMIT {
2462 return false;
2463 }
2464 } else {
2465 let candidate_point = MultiBufferPoint {
2466 row: row_candidate,
2467 column: 0,
2468 };
2469 let candidate_excerpt_id = snapshot
2470 .display_snapshot
2471 .buffer_snapshot()
2472 .excerpt_containing(candidate_point..candidate_point)
2473 .map(|excerpt| excerpt.id());
2474 // move to other row if different excerpt
2475 if excerpt_id != candidate_excerpt_id {
2476 return false;
2477 }
2478 }
2479 let line_indent = snapshot
2480 .display_snapshot
2481 .buffer_snapshot()
2482 .line_indent_for_row(MultiBufferRow(row_candidate));
2483 // use this row if it's blank
2484 if line_indent.is_line_blank() {
2485 true
2486 } else {
2487 // use this row if code starts after slot
2488 let indent_size = snapshot
2489 .display_snapshot
2490 .buffer_snapshot()
2491 .indent_size_for_line(MultiBufferRow(row_candidate));
2492 indent_size.len >= INLINE_SLOT_CHAR_LIMIT
2493 }
2494 };
2495
2496 let new_buffer_row = if is_valid_row(buffer_point.row) {
2497 Some(buffer_point.row)
2498 } else {
2499 let max_row = snapshot.display_snapshot.buffer_snapshot().max_point().row;
2500 (1..=MAX_ALTERNATE_DISTANCE).find_map(|offset| {
2501 let row_above = buffer_point.row.saturating_sub(offset);
2502 let row_below = buffer_point.row + offset;
2503 if row_above != buffer_point.row && is_valid_row(row_above) {
2504 Some(row_above)
2505 } else if row_below <= max_row && is_valid_row(row_below) {
2506 Some(row_below)
2507 } else {
2508 None
2509 }
2510 })
2511 }?;
2512
2513 let new_display_row = snapshot
2514 .display_snapshot
2515 .point_to_display_point(
2516 Point {
2517 row: new_buffer_row,
2518 column: buffer_point.column,
2519 },
2520 text::Bias::Left,
2521 )
2522 .row();
2523
2524 let start_y = content_origin.y
2525 + (((new_display_row.as_f64() - scroll_position.y) as f32) * line_height)
2526 + (line_height / 2.0)
2527 - (icon_size.square(window, cx) / 2.);
2528 let start_x = (ScrollPixelOffset::from(content_origin.x) - scroll_pixel_position.x
2529 + ScrollPixelOffset::from(window.rem_size() * 0.1))
2530 .into();
2531
2532 let absolute_offset = gpui::point(start_x, start_y);
2533 button.layout_as_root(gpui::AvailableSpace::min_size(), window, cx);
2534 button.prepaint_as_root(
2535 absolute_offset,
2536 gpui::AvailableSpace::min_size(),
2537 window,
2538 cx,
2539 );
2540 Some(button)
2541 }
2542
2543 fn layout_inline_blame(
2544 &self,
2545 display_row: DisplayRow,
2546 row_info: &RowInfo,
2547 line_layout: &LineWithInvisibles,
2548 crease_trailer: Option<&CreaseTrailerLayout>,
2549 em_width: Pixels,
2550 content_origin: gpui::Point<Pixels>,
2551 scroll_position: gpui::Point<ScrollOffset>,
2552 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2553 line_height: Pixels,
2554 window: &mut Window,
2555 cx: &mut App,
2556 ) -> Option<InlineBlameLayout> {
2557 if !self
2558 .editor
2559 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
2560 {
2561 return None;
2562 }
2563
2564 let editor = self.editor.read(cx);
2565 let blame = editor.blame.clone()?;
2566 let padding = {
2567 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
2568
2569 let mut padding = ProjectSettings::get_global(cx).git.inline_blame.padding as f32;
2570
2571 if let Some(edit_prediction) = editor.active_edit_prediction.as_ref()
2572 && let EditPrediction::Edit {
2573 display_mode: EditDisplayMode::TabAccept,
2574 ..
2575 } = &edit_prediction.completion
2576 {
2577 padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS
2578 }
2579
2580 padding * em_width
2581 };
2582
2583 let (buffer_id, entry) = blame
2584 .update(cx, |blame, cx| {
2585 blame.blame_for_rows(&[*row_info], cx).next()
2586 })
2587 .flatten()?;
2588
2589 let mut element = render_inline_blame_entry(entry.clone(), &self.style, cx)?;
2590
2591 let start_y =
2592 content_origin.y + line_height * ((display_row.as_f64() - scroll_position.y) as f32);
2593
2594 let start_x = {
2595 let line_end = if let Some(crease_trailer) = crease_trailer {
2596 crease_trailer.bounds.right()
2597 } else {
2598 Pixels::from(
2599 ScrollPixelOffset::from(content_origin.x + line_layout.width)
2600 - scroll_pixel_position.x,
2601 )
2602 };
2603
2604 let padded_line_end = line_end + padding;
2605
2606 let min_column_in_pixels = column_pixels(
2607 &self.style,
2608 ProjectSettings::get_global(cx).git.inline_blame.min_column as usize,
2609 window,
2610 );
2611 let min_start = Pixels::from(
2612 ScrollPixelOffset::from(content_origin.x + min_column_in_pixels)
2613 - scroll_pixel_position.x,
2614 );
2615
2616 cmp::max(padded_line_end, min_start)
2617 };
2618
2619 let absolute_offset = point(start_x, start_y);
2620 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2621 let bounds = Bounds::new(absolute_offset, size);
2622
2623 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
2624
2625 Some(InlineBlameLayout {
2626 element,
2627 bounds,
2628 buffer_id,
2629 entry,
2630 })
2631 }
2632
2633 fn layout_blame_popover(
2634 &self,
2635 editor_snapshot: &EditorSnapshot,
2636 text_hitbox: &Hitbox,
2637 line_height: Pixels,
2638 window: &mut Window,
2639 cx: &mut App,
2640 ) {
2641 if !self.editor.read(cx).inline_blame_popover.is_some() {
2642 return;
2643 }
2644
2645 let Some(blame) = self.editor.read(cx).blame.clone() else {
2646 return;
2647 };
2648 let cursor_point = self
2649 .editor
2650 .read(cx)
2651 .selections
2652 .newest::<language::Point>(&editor_snapshot.display_snapshot)
2653 .head();
2654
2655 let Some((buffer, buffer_point, _)) = editor_snapshot
2656 .buffer_snapshot()
2657 .point_to_buffer_point(cursor_point)
2658 else {
2659 return;
2660 };
2661
2662 let row_info = RowInfo {
2663 buffer_id: Some(buffer.remote_id()),
2664 buffer_row: Some(buffer_point.row),
2665 ..Default::default()
2666 };
2667
2668 let Some((buffer_id, blame_entry)) = blame
2669 .update(cx, |blame, cx| blame.blame_for_rows(&[row_info], cx).next())
2670 .flatten()
2671 else {
2672 return;
2673 };
2674
2675 let Some((popover_state, target_point)) = self.editor.read_with(cx, |editor, _| {
2676 editor
2677 .inline_blame_popover
2678 .as_ref()
2679 .map(|state| (state.popover_state.clone(), state.position))
2680 }) else {
2681 return;
2682 };
2683
2684 let workspace = self
2685 .editor
2686 .read_with(cx, |editor, _| editor.workspace().map(|w| w.downgrade()));
2687
2688 let maybe_element = workspace.and_then(|workspace| {
2689 render_blame_entry_popover(
2690 blame_entry,
2691 popover_state.scroll_handle,
2692 popover_state.commit_message,
2693 popover_state.markdown,
2694 workspace,
2695 &blame,
2696 buffer_id,
2697 window,
2698 cx,
2699 )
2700 });
2701
2702 if let Some(mut element) = maybe_element {
2703 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2704 let overall_height = size.height + HOVER_POPOVER_GAP;
2705 let popover_origin = if target_point.y > overall_height {
2706 point(target_point.x, target_point.y - size.height)
2707 } else {
2708 point(
2709 target_point.x,
2710 target_point.y + line_height + HOVER_POPOVER_GAP,
2711 )
2712 };
2713
2714 let horizontal_offset = (text_hitbox.top_right().x
2715 - POPOVER_RIGHT_OFFSET
2716 - (popover_origin.x + size.width))
2717 .min(Pixels::ZERO);
2718
2719 let origin = point(popover_origin.x + horizontal_offset, popover_origin.y);
2720 let popover_bounds = Bounds::new(origin, size);
2721
2722 self.editor.update(cx, |editor, _| {
2723 if let Some(state) = &mut editor.inline_blame_popover {
2724 state.popover_bounds = Some(popover_bounds);
2725 }
2726 });
2727
2728 window.defer_draw(element, origin, 2);
2729 }
2730 }
2731
2732 fn layout_blame_entries(
2733 &self,
2734 buffer_rows: &[RowInfo],
2735 em_width: Pixels,
2736 scroll_position: gpui::Point<ScrollOffset>,
2737 line_height: Pixels,
2738 gutter_hitbox: &Hitbox,
2739 max_width: Option<Pixels>,
2740 window: &mut Window,
2741 cx: &mut App,
2742 ) -> Option<Vec<AnyElement>> {
2743 if !self
2744 .editor
2745 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
2746 {
2747 return None;
2748 }
2749
2750 let blame = self.editor.read(cx).blame.clone()?;
2751 let workspace = self.editor.read(cx).workspace()?;
2752 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
2753 blame.blame_for_rows(buffer_rows, cx).collect()
2754 });
2755
2756 let width = if let Some(max_width) = max_width {
2757 AvailableSpace::Definite(max_width)
2758 } else {
2759 AvailableSpace::MaxContent
2760 };
2761 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
2762 let start_x = em_width;
2763
2764 let mut last_used_color: Option<(Hsla, Oid)> = None;
2765 let blame_renderer = cx.global::<GlobalBlameRenderer>().0.clone();
2766
2767 let shaped_lines = blamed_rows
2768 .into_iter()
2769 .enumerate()
2770 .flat_map(|(ix, blame_entry)| {
2771 let (buffer_id, blame_entry) = blame_entry?;
2772 let mut element = render_blame_entry(
2773 ix,
2774 &blame,
2775 blame_entry,
2776 &self.style,
2777 &mut last_used_color,
2778 self.editor.clone(),
2779 workspace.clone(),
2780 buffer_id,
2781 &*blame_renderer,
2782 window,
2783 cx,
2784 )?;
2785
2786 let start_y = ix as f32 * line_height
2787 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height));
2788 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
2789
2790 element.prepaint_as_root(
2791 absolute_offset,
2792 size(width, AvailableSpace::MinContent),
2793 window,
2794 cx,
2795 );
2796
2797 Some(element)
2798 })
2799 .collect();
2800
2801 Some(shaped_lines)
2802 }
2803
2804 fn layout_indent_guides(
2805 &self,
2806 content_origin: gpui::Point<Pixels>,
2807 text_origin: gpui::Point<Pixels>,
2808 visible_buffer_range: Range<MultiBufferRow>,
2809 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2810 line_height: Pixels,
2811 snapshot: &DisplaySnapshot,
2812 window: &mut Window,
2813 cx: &mut App,
2814 ) -> Option<Vec<IndentGuideLayout>> {
2815 let indent_guides = self.editor.update(cx, |editor, cx| {
2816 editor.indent_guides(visible_buffer_range, snapshot, cx)
2817 })?;
2818
2819 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
2820 editor
2821 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
2822 .unwrap_or_default()
2823 });
2824
2825 Some(
2826 indent_guides
2827 .into_iter()
2828 .enumerate()
2829 .filter_map(|(i, indent_guide)| {
2830 let single_indent_width =
2831 column_pixels(&self.style, indent_guide.tab_size as usize, window);
2832 let total_width = single_indent_width * indent_guide.depth as f32;
2833 let start_x = Pixels::from(
2834 ScrollOffset::from(content_origin.x + total_width)
2835 - scroll_pixel_position.x,
2836 );
2837 if start_x >= text_origin.x {
2838 let (offset_y, length) = Self::calculate_indent_guide_bounds(
2839 indent_guide.start_row..indent_guide.end_row,
2840 line_height,
2841 snapshot,
2842 );
2843
2844 let start_y = Pixels::from(
2845 ScrollOffset::from(content_origin.y) + offset_y
2846 - scroll_pixel_position.y,
2847 );
2848
2849 Some(IndentGuideLayout {
2850 origin: point(start_x, start_y),
2851 length,
2852 single_indent_width,
2853 depth: indent_guide.depth,
2854 active: active_indent_guide_indices.contains(&i),
2855 settings: indent_guide.settings,
2856 })
2857 } else {
2858 None
2859 }
2860 })
2861 .collect(),
2862 )
2863 }
2864
2865 fn layout_wrap_guides(
2866 &self,
2867 em_advance: Pixels,
2868 scroll_position: gpui::Point<f64>,
2869 content_origin: gpui::Point<Pixels>,
2870 scrollbar_layout: Option<&EditorScrollbars>,
2871 vertical_scrollbar_width: Pixels,
2872 hitbox: &Hitbox,
2873 window: &Window,
2874 cx: &App,
2875 ) -> SmallVec<[(Pixels, bool); 2]> {
2876 let scroll_left = scroll_position.x as f32 * em_advance;
2877 let content_origin = content_origin.x;
2878 let horizontal_offset = content_origin - scroll_left;
2879 let vertical_scrollbar_width = scrollbar_layout
2880 .and_then(|layout| layout.visible.then_some(vertical_scrollbar_width))
2881 .unwrap_or_default();
2882
2883 self.editor
2884 .read(cx)
2885 .wrap_guides(cx)
2886 .into_iter()
2887 .flat_map(|(guide, active)| {
2888 let wrap_position = column_pixels(&self.style, guide, window);
2889 let wrap_guide_x = wrap_position + horizontal_offset;
2890 let display_wrap_guide = wrap_guide_x >= content_origin
2891 && wrap_guide_x <= hitbox.bounds.right() - vertical_scrollbar_width;
2892
2893 display_wrap_guide.then_some((wrap_guide_x, active))
2894 })
2895 .collect()
2896 }
2897
2898 fn calculate_indent_guide_bounds(
2899 row_range: Range<MultiBufferRow>,
2900 line_height: Pixels,
2901 snapshot: &DisplaySnapshot,
2902 ) -> (f64, gpui::Pixels) {
2903 let start_point = Point::new(row_range.start.0, 0);
2904 let end_point = Point::new(row_range.end.0, 0);
2905
2906 let row_range = start_point.to_display_point(snapshot).row()
2907 ..end_point.to_display_point(snapshot).row();
2908
2909 let mut prev_line = start_point;
2910 prev_line.row = prev_line.row.saturating_sub(1);
2911 let prev_line = prev_line.to_display_point(snapshot).row();
2912
2913 let mut cons_line = end_point;
2914 cons_line.row += 1;
2915 let cons_line = cons_line.to_display_point(snapshot).row();
2916
2917 let mut offset_y = row_range.start.as_f64() * f64::from(line_height);
2918 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
2919
2920 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
2921 if row_range.end == cons_line {
2922 length += line_height;
2923 }
2924
2925 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
2926 // we want to extend the indent guide to the start of the block.
2927 let mut block_height = 0;
2928 let mut block_offset = 0;
2929 let mut found_excerpt_header = false;
2930 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
2931 if matches!(
2932 block,
2933 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
2934 ) {
2935 found_excerpt_header = true;
2936 break;
2937 }
2938 block_offset += block.height();
2939 block_height += block.height();
2940 }
2941 if !found_excerpt_header {
2942 offset_y -= block_offset as f64 * f64::from(line_height);
2943 length += block_height as f32 * line_height;
2944 }
2945
2946 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
2947 // we want to ensure that the indent guide stops before the excerpt header.
2948 let mut block_height = 0;
2949 let mut found_excerpt_header = false;
2950 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
2951 if matches!(
2952 block,
2953 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
2954 ) {
2955 found_excerpt_header = true;
2956 }
2957 block_height += block.height();
2958 }
2959 if found_excerpt_header {
2960 length -= block_height as f32 * line_height;
2961 }
2962
2963 (offset_y, length)
2964 }
2965
2966 fn layout_breakpoints(
2967 &self,
2968 line_height: Pixels,
2969 range: Range<DisplayRow>,
2970 scroll_position: gpui::Point<ScrollOffset>,
2971 gutter_dimensions: &GutterDimensions,
2972 gutter_hitbox: &Hitbox,
2973 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2974 snapshot: &EditorSnapshot,
2975 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
2976 row_infos: &[RowInfo],
2977 window: &mut Window,
2978 cx: &mut App,
2979 ) -> Vec<AnyElement> {
2980 self.editor.update(cx, |editor, cx| {
2981 breakpoints
2982 .into_iter()
2983 .filter_map(|(display_row, (text_anchor, bp, state))| {
2984 if row_infos
2985 .get((display_row.0.saturating_sub(range.start.0)) as usize)
2986 .is_some_and(|row_info| {
2987 row_info.expand_info.is_some()
2988 || row_info
2989 .diff_status
2990 .is_some_and(|status| status.is_deleted())
2991 })
2992 {
2993 return None;
2994 }
2995
2996 if range.start > display_row || range.end < display_row {
2997 return None;
2998 }
2999
3000 let row =
3001 MultiBufferRow(DisplayPoint::new(display_row, 0).to_point(snapshot).row);
3002 if snapshot.is_line_folded(row) {
3003 return None;
3004 }
3005
3006 let button = editor.render_breakpoint(text_anchor, display_row, &bp, state, cx);
3007
3008 let button = prepaint_gutter_button(
3009 button,
3010 display_row,
3011 line_height,
3012 gutter_dimensions,
3013 scroll_position,
3014 gutter_hitbox,
3015 display_hunks,
3016 window,
3017 cx,
3018 );
3019 Some(button)
3020 })
3021 .collect_vec()
3022 })
3023 }
3024
3025 #[allow(clippy::too_many_arguments)]
3026 fn layout_run_indicators(
3027 &self,
3028 line_height: Pixels,
3029 range: Range<DisplayRow>,
3030 row_infos: &[RowInfo],
3031 scroll_position: gpui::Point<ScrollOffset>,
3032 gutter_dimensions: &GutterDimensions,
3033 gutter_hitbox: &Hitbox,
3034 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
3035 snapshot: &EditorSnapshot,
3036 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
3037 window: &mut Window,
3038 cx: &mut App,
3039 ) -> Vec<AnyElement> {
3040 self.editor.update(cx, |editor, cx| {
3041 let active_task_indicator_row =
3042 // TODO: add edit button on the right side of each row in the context menu
3043 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
3044 deployed_from,
3045 actions,
3046 ..
3047 })) = editor.context_menu.borrow().as_ref()
3048 {
3049 actions
3050 .tasks()
3051 .map(|tasks| tasks.position.to_display_point(snapshot).row())
3052 .or_else(|| match deployed_from {
3053 Some(CodeActionSource::Indicator(row)) => Some(*row),
3054 _ => None,
3055 })
3056 } else {
3057 None
3058 };
3059
3060 let offset_range_start =
3061 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
3062
3063 let offset_range_end =
3064 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
3065
3066 editor
3067 .tasks
3068 .iter()
3069 .filter_map(|(_, tasks)| {
3070 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot());
3071 if multibuffer_point < offset_range_start
3072 || multibuffer_point > offset_range_end
3073 {
3074 return None;
3075 }
3076 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
3077 let buffer_folded = snapshot
3078 .buffer_snapshot()
3079 .buffer_line_for_row(multibuffer_row)
3080 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
3081 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
3082 .unwrap_or(false);
3083 if buffer_folded {
3084 return None;
3085 }
3086
3087 if snapshot.is_line_folded(multibuffer_row) {
3088 // Skip folded indicators, unless it's the starting line of a fold.
3089 if multibuffer_row
3090 .0
3091 .checked_sub(1)
3092 .is_some_and(|previous_row| {
3093 snapshot.is_line_folded(MultiBufferRow(previous_row))
3094 })
3095 {
3096 return None;
3097 }
3098 }
3099
3100 let display_row = multibuffer_point.to_display_point(snapshot).row();
3101 if !range.contains(&display_row) {
3102 return None;
3103 }
3104 if row_infos
3105 .get((display_row - range.start).0 as usize)
3106 .is_some_and(|row_info| row_info.expand_info.is_some())
3107 {
3108 return None;
3109 }
3110
3111 let button = editor.render_run_indicator(
3112 &self.style,
3113 Some(display_row) == active_task_indicator_row,
3114 display_row,
3115 breakpoints.remove(&display_row),
3116 cx,
3117 );
3118
3119 let button = prepaint_gutter_button(
3120 button,
3121 display_row,
3122 line_height,
3123 gutter_dimensions,
3124 scroll_position,
3125 gutter_hitbox,
3126 display_hunks,
3127 window,
3128 cx,
3129 );
3130 Some(button)
3131 })
3132 .collect_vec()
3133 })
3134 }
3135
3136 fn layout_expand_toggles(
3137 &self,
3138 gutter_hitbox: &Hitbox,
3139 gutter_dimensions: GutterDimensions,
3140 em_width: Pixels,
3141 line_height: Pixels,
3142 scroll_position: gpui::Point<ScrollOffset>,
3143 buffer_rows: &[RowInfo],
3144 window: &mut Window,
3145 cx: &mut App,
3146 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
3147 if self.editor.read(cx).disable_expand_excerpt_buttons {
3148 return vec![];
3149 }
3150
3151 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
3152
3153 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
3154
3155 let max_line_number_length = self
3156 .editor
3157 .read(cx)
3158 .buffer()
3159 .read(cx)
3160 .snapshot(cx)
3161 .widest_line_number()
3162 .ilog10()
3163 + 1;
3164
3165 let git_gutter_width = Self::gutter_strip_width(line_height)
3166 + gutter_dimensions
3167 .git_blame_entries_width
3168 .unwrap_or_default();
3169 let available_width = gutter_dimensions.left_padding - git_gutter_width;
3170
3171 buffer_rows
3172 .iter()
3173 .enumerate()
3174 .map(|(ix, row_info)| {
3175 let ExpandInfo {
3176 excerpt_id,
3177 direction,
3178 } = row_info.expand_info?;
3179
3180 let icon_name = match direction {
3181 ExpandExcerptDirection::Up => IconName::ExpandUp,
3182 ExpandExcerptDirection::Down => IconName::ExpandDown,
3183 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
3184 };
3185
3186 let editor = self.editor.clone();
3187 let is_wide = max_line_number_length
3188 >= EditorSettings::get_global(cx).gutter.min_line_number_digits as u32
3189 && row_info
3190 .buffer_row
3191 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
3192 || gutter_dimensions.right_padding == px(0.);
3193
3194 let width = if is_wide {
3195 available_width - px(2.)
3196 } else {
3197 available_width + em_width - px(2.)
3198 };
3199
3200 let toggle = IconButton::new(("expand", ix), icon_name)
3201 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
3202 .selected_icon_color(Color::Custom(cx.theme().colors().editor_foreground))
3203 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
3204 .width(width)
3205 .on_click(move |_, window, cx| {
3206 editor.update(cx, |editor, cx| {
3207 editor.expand_excerpt(excerpt_id, direction, window, cx);
3208 });
3209 })
3210 .tooltip(Tooltip::for_action_title(
3211 "Expand Excerpt",
3212 &crate::actions::ExpandExcerpts::default(),
3213 ))
3214 .into_any_element();
3215
3216 let position = point(
3217 git_gutter_width + px(1.),
3218 ix as f32 * line_height
3219 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height))
3220 + px(1.),
3221 );
3222 let origin = gutter_hitbox.origin + position;
3223
3224 Some((toggle, origin))
3225 })
3226 .collect()
3227 }
3228
3229 fn calculate_relative_line_numbers(
3230 &self,
3231 snapshot: &EditorSnapshot,
3232 rows: &Range<DisplayRow>,
3233 relative_to: Option<DisplayRow>,
3234 count_wrapped_lines: bool,
3235 ) -> HashMap<DisplayRow, DisplayRowDelta> {
3236 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
3237 let Some(relative_to) = relative_to else {
3238 return relative_rows;
3239 };
3240
3241 let start = rows.start.min(relative_to);
3242 let end = rows.end.max(relative_to);
3243
3244 let buffer_rows = snapshot
3245 .row_infos(start)
3246 .take(1 + end.minus(start) as usize)
3247 .collect::<Vec<_>>();
3248
3249 let head_idx = relative_to.minus(start);
3250 let mut delta = 1;
3251 let mut i = head_idx + 1;
3252 let should_count_line = |row_info: &RowInfo| {
3253 if count_wrapped_lines {
3254 row_info.buffer_row.is_some() || row_info.wrapped_buffer_row.is_some()
3255 } else {
3256 row_info.buffer_row.is_some()
3257 }
3258 };
3259 while i < buffer_rows.len() as u32 {
3260 if should_count_line(&buffer_rows[i as usize]) {
3261 if rows.contains(&DisplayRow(i + start.0)) {
3262 relative_rows.insert(DisplayRow(i + start.0), delta);
3263 }
3264 delta += 1;
3265 }
3266 i += 1;
3267 }
3268 delta = 1;
3269 i = head_idx.min(buffer_rows.len().saturating_sub(1) as u32);
3270 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() && !count_wrapped_lines {
3271 i -= 1;
3272 }
3273
3274 while i > 0 {
3275 i -= 1;
3276 if should_count_line(&buffer_rows[i as usize]) {
3277 if rows.contains(&DisplayRow(i + start.0)) {
3278 relative_rows.insert(DisplayRow(i + start.0), delta);
3279 }
3280 delta += 1;
3281 }
3282 }
3283
3284 relative_rows
3285 }
3286
3287 fn layout_line_numbers(
3288 &self,
3289 gutter_hitbox: Option<&Hitbox>,
3290 gutter_dimensions: GutterDimensions,
3291 line_height: Pixels,
3292 scroll_position: gpui::Point<ScrollOffset>,
3293 rows: Range<DisplayRow>,
3294 buffer_rows: &[RowInfo],
3295 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3296 newest_selection_head: Option<DisplayPoint>,
3297 snapshot: &EditorSnapshot,
3298 window: &mut Window,
3299 cx: &mut App,
3300 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
3301 let include_line_numbers = snapshot
3302 .show_line_numbers
3303 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
3304 if !include_line_numbers {
3305 return Arc::default();
3306 }
3307
3308 let (newest_selection_head, relative) = self.editor.update(cx, |editor, cx| {
3309 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
3310 let newest = editor
3311 .selections
3312 .newest::<Point>(&editor.display_snapshot(cx));
3313 SelectionLayout::new(
3314 newest,
3315 editor.selections.line_mode(),
3316 editor.cursor_offset_on_selection,
3317 editor.cursor_shape,
3318 &snapshot.display_snapshot,
3319 true,
3320 true,
3321 None,
3322 )
3323 .head
3324 });
3325 let relative = editor.relative_line_numbers(cx);
3326 (newest_selection_head, relative)
3327 });
3328
3329 let relative_line_numbers_enabled = relative.enabled();
3330 let relative_to = relative_line_numbers_enabled.then(|| newest_selection_head.row());
3331
3332 let relative_rows =
3333 self.calculate_relative_line_numbers(snapshot, &rows, relative_to, relative.wrapped());
3334 let mut line_number = String::new();
3335 let segments = buffer_rows.iter().enumerate().flat_map(|(ix, row_info)| {
3336 let display_row = DisplayRow(rows.start.0 + ix as u32);
3337 line_number.clear();
3338 let non_relative_number = if relative.wrapped() {
3339 row_info.buffer_row.or(row_info.wrapped_buffer_row)? + 1
3340 } else if self.editor.read(cx).use_base_text_line_numbers {
3341 row_info.base_text_row?.0 + 1
3342 } else {
3343 row_info.buffer_row? + 1
3344 };
3345 let relative_number = relative_rows.get(&display_row);
3346 if !(relative_line_numbers_enabled && relative_number.is_some())
3347 && row_info
3348 .diff_status
3349 .is_some_and(|status| status.is_deleted())
3350 && !self.editor.read(cx).use_base_text_line_numbers
3351 {
3352 return None;
3353 }
3354
3355 let number = relative_number.unwrap_or(&non_relative_number);
3356 write!(&mut line_number, "{number}").unwrap();
3357
3358 let color = active_rows
3359 .get(&display_row)
3360 .map(|spec| {
3361 if spec.breakpoint {
3362 cx.theme().colors().debugger_accent
3363 } else {
3364 cx.theme().colors().editor_active_line_number
3365 }
3366 })
3367 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
3368 let shaped_line =
3369 self.shape_line_number(SharedString::from(&line_number), color, window);
3370 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
3371 let line_origin = gutter_hitbox.map(|hitbox| {
3372 hitbox.origin
3373 + point(
3374 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
3375 ix as f32 * line_height
3376 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height)),
3377 )
3378 });
3379
3380 #[cfg(not(test))]
3381 let hitbox = line_origin.map(|line_origin| {
3382 window.insert_hitbox(
3383 Bounds::new(line_origin, size(shaped_line.width, line_height)),
3384 HitboxBehavior::Normal,
3385 )
3386 });
3387 #[cfg(test)]
3388 let hitbox = {
3389 let _ = line_origin;
3390 None
3391 };
3392
3393 let segment = LineNumberSegment {
3394 shaped_line,
3395 hitbox,
3396 };
3397
3398 let buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
3399 let multi_buffer_row = MultiBufferRow(buffer_row);
3400
3401 Some((multi_buffer_row, segment))
3402 });
3403
3404 let mut line_numbers: HashMap<MultiBufferRow, LineNumberLayout> = HashMap::default();
3405 for (buffer_row, segment) in segments {
3406 line_numbers
3407 .entry(buffer_row)
3408 .or_insert_with(|| LineNumberLayout {
3409 segments: Default::default(),
3410 })
3411 .segments
3412 .push(segment);
3413 }
3414 Arc::new(line_numbers)
3415 }
3416
3417 fn layout_crease_toggles(
3418 &self,
3419 rows: Range<DisplayRow>,
3420 row_infos: &[RowInfo],
3421 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3422 snapshot: &EditorSnapshot,
3423 window: &mut Window,
3424 cx: &mut App,
3425 ) -> Vec<Option<AnyElement>> {
3426 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
3427 && snapshot.mode.is_full()
3428 && self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
3429 if include_fold_statuses {
3430 row_infos
3431 .iter()
3432 .enumerate()
3433 .map(|(ix, info)| {
3434 if info.expand_info.is_some() {
3435 return None;
3436 }
3437 let row = info.multibuffer_row?;
3438 let display_row = DisplayRow(rows.start.0 + ix as u32);
3439 let active = active_rows.contains_key(&display_row);
3440
3441 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
3442 })
3443 .collect()
3444 } else {
3445 Vec::new()
3446 }
3447 }
3448
3449 fn layout_crease_trailers(
3450 &self,
3451 buffer_rows: impl IntoIterator<Item = RowInfo>,
3452 snapshot: &EditorSnapshot,
3453 window: &mut Window,
3454 cx: &mut App,
3455 ) -> Vec<Option<AnyElement>> {
3456 buffer_rows
3457 .into_iter()
3458 .map(|row_info| {
3459 if row_info.expand_info.is_some() {
3460 return None;
3461 }
3462 if let Some(row) = row_info.multibuffer_row {
3463 snapshot.render_crease_trailer(row, window, cx)
3464 } else {
3465 None
3466 }
3467 })
3468 .collect()
3469 }
3470
3471 fn bg_segments_per_row(
3472 rows: Range<DisplayRow>,
3473 selections: &[(PlayerColor, Vec<SelectionLayout>)],
3474 highlight_ranges: &[(Range<DisplayPoint>, Hsla)],
3475 base_background: Hsla,
3476 ) -> Vec<Vec<(Range<DisplayPoint>, Hsla)>> {
3477 if rows.start >= rows.end {
3478 return Vec::new();
3479 }
3480 if !base_background.is_opaque() {
3481 // We don't actually know what color is behind this editor.
3482 return Vec::new();
3483 }
3484 let highlight_iter = highlight_ranges.iter().cloned();
3485 let selection_iter = selections.iter().flat_map(|(player_color, layouts)| {
3486 let color = player_color.selection;
3487 layouts.iter().filter_map(move |selection_layout| {
3488 if selection_layout.range.start != selection_layout.range.end {
3489 Some((selection_layout.range.clone(), color))
3490 } else {
3491 None
3492 }
3493 })
3494 });
3495 let mut per_row_map = vec![Vec::new(); rows.len()];
3496 for (range, color) in highlight_iter.chain(selection_iter) {
3497 let covered_rows = if range.end.column() == 0 {
3498 cmp::max(range.start.row(), rows.start)..cmp::min(range.end.row(), rows.end)
3499 } else {
3500 cmp::max(range.start.row(), rows.start)
3501 ..cmp::min(range.end.row().next_row(), rows.end)
3502 };
3503 for row in covered_rows.iter_rows() {
3504 let seg_start = if row == range.start.row() {
3505 range.start
3506 } else {
3507 DisplayPoint::new(row, 0)
3508 };
3509 let seg_end = if row == range.end.row() && range.end.column() != 0 {
3510 range.end
3511 } else {
3512 DisplayPoint::new(row, u32::MAX)
3513 };
3514 let ix = row.minus(rows.start) as usize;
3515 debug_assert!(row >= rows.start && row < rows.end);
3516 debug_assert!(ix < per_row_map.len());
3517 per_row_map[ix].push((seg_start..seg_end, color));
3518 }
3519 }
3520 for row_segments in per_row_map.iter_mut() {
3521 if row_segments.is_empty() {
3522 continue;
3523 }
3524 let segments = mem::take(row_segments);
3525 let merged = Self::merge_overlapping_ranges(segments, base_background);
3526 *row_segments = merged;
3527 }
3528 per_row_map
3529 }
3530
3531 /// Merge overlapping ranges by splitting at all range boundaries and blending colors where
3532 /// multiple ranges overlap. The result contains non-overlapping ranges ordered from left to right.
3533 ///
3534 /// Expects `start.row() == end.row()` for each range.
3535 fn merge_overlapping_ranges(
3536 ranges: Vec<(Range<DisplayPoint>, Hsla)>,
3537 base_background: Hsla,
3538 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
3539 struct Boundary {
3540 pos: DisplayPoint,
3541 is_start: bool,
3542 index: usize,
3543 color: Hsla,
3544 }
3545
3546 let mut boundaries: SmallVec<[Boundary; 16]> = SmallVec::with_capacity(ranges.len() * 2);
3547 for (index, (range, color)) in ranges.iter().enumerate() {
3548 debug_assert!(
3549 range.start.row() == range.end.row(),
3550 "expects single-row ranges"
3551 );
3552 if range.start < range.end {
3553 boundaries.push(Boundary {
3554 pos: range.start,
3555 is_start: true,
3556 index,
3557 color: *color,
3558 });
3559 boundaries.push(Boundary {
3560 pos: range.end,
3561 is_start: false,
3562 index,
3563 color: *color,
3564 });
3565 }
3566 }
3567
3568 if boundaries.is_empty() {
3569 return Vec::new();
3570 }
3571
3572 boundaries
3573 .sort_unstable_by(|a, b| a.pos.cmp(&b.pos).then_with(|| a.is_start.cmp(&b.is_start)));
3574
3575 let mut processed_ranges: Vec<(Range<DisplayPoint>, Hsla)> = Vec::new();
3576 let mut active_ranges: SmallVec<[(usize, Hsla); 8]> = SmallVec::new();
3577
3578 let mut i = 0;
3579 let mut start_pos = boundaries[0].pos;
3580
3581 let boundaries_len = boundaries.len();
3582 while i < boundaries_len {
3583 let current_boundary_pos = boundaries[i].pos;
3584 if start_pos < current_boundary_pos {
3585 if !active_ranges.is_empty() {
3586 let mut color = base_background;
3587 for &(_, c) in &active_ranges {
3588 color = Hsla::blend(color, c);
3589 }
3590 if let Some((last_range, last_color)) = processed_ranges.last_mut() {
3591 if *last_color == color && last_range.end == start_pos {
3592 last_range.end = current_boundary_pos;
3593 } else {
3594 processed_ranges.push((start_pos..current_boundary_pos, color));
3595 }
3596 } else {
3597 processed_ranges.push((start_pos..current_boundary_pos, color));
3598 }
3599 }
3600 }
3601 while i < boundaries_len && boundaries[i].pos == current_boundary_pos {
3602 let active_range = &boundaries[i];
3603 if active_range.is_start {
3604 let idx = active_range.index;
3605 let pos = active_ranges
3606 .binary_search_by_key(&idx, |(i, _)| *i)
3607 .unwrap_or_else(|p| p);
3608 active_ranges.insert(pos, (idx, active_range.color));
3609 } else {
3610 let idx = active_range.index;
3611 if let Ok(pos) = active_ranges.binary_search_by_key(&idx, |(i, _)| *i) {
3612 active_ranges.remove(pos);
3613 }
3614 }
3615 i += 1;
3616 }
3617 start_pos = current_boundary_pos;
3618 }
3619
3620 processed_ranges
3621 }
3622
3623 fn layout_lines(
3624 rows: Range<DisplayRow>,
3625 snapshot: &EditorSnapshot,
3626 style: &EditorStyle,
3627 editor_width: Pixels,
3628 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3629 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
3630 window: &mut Window,
3631 cx: &mut App,
3632 ) -> Vec<LineWithInvisibles> {
3633 if rows.start >= rows.end {
3634 return Vec::new();
3635 }
3636
3637 // Show the placeholder when the editor is empty
3638 if snapshot.is_empty() {
3639 let font_size = style.text.font_size.to_pixels(window.rem_size());
3640 let placeholder_color = cx.theme().colors().text_placeholder;
3641 let placeholder_text = snapshot.placeholder_text();
3642
3643 let placeholder_lines = placeholder_text
3644 .as_ref()
3645 .map_or(Vec::new(), |text| text.split('\n').collect::<Vec<_>>());
3646
3647 let placeholder_line_count = placeholder_lines.len();
3648
3649 placeholder_lines
3650 .into_iter()
3651 .skip(rows.start.0 as usize)
3652 .chain(iter::repeat(""))
3653 .take(cmp::max(rows.len(), placeholder_line_count))
3654 .map(move |line| {
3655 let run = TextRun {
3656 len: line.len(),
3657 font: style.text.font(),
3658 color: placeholder_color,
3659 ..Default::default()
3660 };
3661 let line = window.text_system().shape_line(
3662 line.to_string().into(),
3663 font_size,
3664 &[run],
3665 None,
3666 );
3667 LineWithInvisibles {
3668 width: line.width,
3669 len: line.len,
3670 fragments: smallvec![LineFragment::Text(line)],
3671 invisibles: Vec::new(),
3672 font_size,
3673 }
3674 })
3675 .collect()
3676 } else {
3677 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
3678 LineWithInvisibles::from_chunks(
3679 chunks,
3680 style,
3681 MAX_LINE_LEN,
3682 rows.len(),
3683 &snapshot.mode,
3684 editor_width,
3685 is_row_soft_wrapped,
3686 bg_segments_per_row,
3687 window,
3688 cx,
3689 )
3690 }
3691 }
3692
3693 fn prepaint_lines(
3694 &self,
3695 start_row: DisplayRow,
3696 line_layouts: &mut [LineWithInvisibles],
3697 line_height: Pixels,
3698 scroll_position: gpui::Point<ScrollOffset>,
3699 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
3700 content_origin: gpui::Point<Pixels>,
3701 window: &mut Window,
3702 cx: &mut App,
3703 ) -> SmallVec<[AnyElement; 1]> {
3704 let mut line_elements = SmallVec::new();
3705 for (ix, line) in line_layouts.iter_mut().enumerate() {
3706 let row = start_row + DisplayRow(ix as u32);
3707 line.prepaint(
3708 line_height,
3709 scroll_position,
3710 scroll_pixel_position,
3711 row,
3712 content_origin,
3713 &mut line_elements,
3714 window,
3715 cx,
3716 );
3717 }
3718 line_elements
3719 }
3720
3721 fn render_block(
3722 &self,
3723 block: &Block,
3724 available_width: AvailableSpace,
3725 block_id: BlockId,
3726 block_row_start: DisplayRow,
3727 snapshot: &EditorSnapshot,
3728 text_x: Pixels,
3729 rows: &Range<DisplayRow>,
3730 line_layouts: &[LineWithInvisibles],
3731 editor_margins: &EditorMargins,
3732 line_height: Pixels,
3733 em_width: Pixels,
3734 text_hitbox: &Hitbox,
3735 editor_width: Pixels,
3736 scroll_width: &mut Pixels,
3737 resized_blocks: &mut HashMap<CustomBlockId, u32>,
3738 row_block_types: &mut HashMap<DisplayRow, bool>,
3739 selections: &[Selection<Point>],
3740 selected_buffer_ids: &Vec<BufferId>,
3741 latest_selection_anchors: &HashMap<BufferId, Anchor>,
3742 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3743 sticky_header_excerpt_id: Option<ExcerptId>,
3744 block_resize_offset: &mut i32,
3745 window: &mut Window,
3746 cx: &mut App,
3747 ) -> Option<(AnyElement, Size<Pixels>, DisplayRow, Pixels)> {
3748 let mut x_position = None;
3749 let mut element = match block {
3750 Block::Custom(custom) => {
3751 let block_start = custom.start().to_point(&snapshot.buffer_snapshot());
3752 let block_end = custom.end().to_point(&snapshot.buffer_snapshot());
3753 if block.place_near() && snapshot.is_line_folded(MultiBufferRow(block_start.row)) {
3754 return None;
3755 }
3756 let align_to = block_start.to_display_point(snapshot);
3757 let x_and_width = |layout: &LineWithInvisibles| {
3758 Some((
3759 text_x + layout.x_for_index(align_to.column() as usize),
3760 text_x + layout.width,
3761 ))
3762 };
3763 let line_ix = align_to.row().0.checked_sub(rows.start.0);
3764 x_position =
3765 if let Some(layout) = line_ix.and_then(|ix| line_layouts.get(ix as usize)) {
3766 x_and_width(layout)
3767 } else {
3768 x_and_width(&layout_line(
3769 align_to.row(),
3770 snapshot,
3771 &self.style,
3772 editor_width,
3773 is_row_soft_wrapped,
3774 window,
3775 cx,
3776 ))
3777 };
3778
3779 let anchor_x = x_position.unwrap().0;
3780
3781 let selected = selections
3782 .binary_search_by(|selection| {
3783 if selection.end <= block_start {
3784 Ordering::Less
3785 } else if selection.start >= block_end {
3786 Ordering::Greater
3787 } else {
3788 Ordering::Equal
3789 }
3790 })
3791 .is_ok();
3792
3793 div()
3794 .size_full()
3795 .child(custom.render(&mut BlockContext {
3796 window,
3797 app: cx,
3798 anchor_x,
3799 margins: editor_margins,
3800 line_height,
3801 em_width,
3802 block_id,
3803 selected,
3804 max_width: text_hitbox.size.width.max(*scroll_width),
3805 editor_style: &self.style,
3806 }))
3807 .into_any()
3808 }
3809
3810 Block::FoldedBuffer {
3811 first_excerpt,
3812 height,
3813 ..
3814 } => {
3815 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
3816 let result = v_flex().id(block_id).w_full().pr(editor_margins.right);
3817
3818 let jump_data = header_jump_data(
3819 snapshot,
3820 block_row_start,
3821 *height,
3822 first_excerpt,
3823 latest_selection_anchors,
3824 );
3825 result
3826 .child(self.render_buffer_header(
3827 first_excerpt,
3828 true,
3829 selected,
3830 false,
3831 jump_data,
3832 window,
3833 cx,
3834 ))
3835 .into_any_element()
3836 }
3837
3838 Block::ExcerptBoundary { .. } => {
3839 let color = cx.theme().colors().clone();
3840 let mut result = v_flex().id(block_id).w_full();
3841
3842 result = result.child(
3843 h_flex().relative().child(
3844 div()
3845 .top(line_height / 2.)
3846 .absolute()
3847 .w_full()
3848 .h_px()
3849 .bg(color.border_variant),
3850 ),
3851 );
3852
3853 result.into_any()
3854 }
3855
3856 Block::BufferHeader { excerpt, height } => {
3857 let mut result = v_flex().id(block_id).w_full();
3858
3859 let jump_data = header_jump_data(
3860 snapshot,
3861 block_row_start,
3862 *height,
3863 excerpt,
3864 latest_selection_anchors,
3865 );
3866
3867 if sticky_header_excerpt_id != Some(excerpt.id) {
3868 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3869
3870 result = result.child(div().pr(editor_margins.right).child(
3871 self.render_buffer_header(
3872 excerpt, false, selected, false, jump_data, window, cx,
3873 ),
3874 ));
3875 } else {
3876 result =
3877 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
3878 }
3879
3880 result.into_any()
3881 }
3882 };
3883
3884 // Discover the element's content height, then round up to the nearest multiple of line height.
3885 let preliminary_size = element.layout_as_root(
3886 size(available_width, AvailableSpace::MinContent),
3887 window,
3888 cx,
3889 );
3890 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
3891 let final_size = if preliminary_size.height == quantized_height {
3892 preliminary_size
3893 } else {
3894 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
3895 };
3896 let mut element_height_in_lines = ((final_size.height / line_height).ceil() as u32).max(1);
3897
3898 let effective_row_start = block_row_start.0 as i32 + *block_resize_offset;
3899 debug_assert!(effective_row_start >= 0);
3900 let mut row = DisplayRow(effective_row_start.max(0) as u32);
3901
3902 let mut x_offset = px(0.);
3903 let mut is_block = true;
3904
3905 if let BlockId::Custom(custom_block_id) = block_id
3906 && block.has_height()
3907 {
3908 if block.place_near()
3909 && let Some((x_target, line_width)) = x_position
3910 {
3911 let margin = em_width * 2;
3912 if line_width + final_size.width + margin
3913 < editor_width + editor_margins.gutter.full_width()
3914 && !row_block_types.contains_key(&(row - 1))
3915 && element_height_in_lines == 1
3916 {
3917 x_offset = line_width + margin;
3918 row = row - 1;
3919 is_block = false;
3920 element_height_in_lines = 0;
3921 row_block_types.insert(row, is_block);
3922 } else {
3923 let max_offset =
3924 editor_width + editor_margins.gutter.full_width() - final_size.width;
3925 let min_offset = (x_target + em_width - final_size.width)
3926 .max(editor_margins.gutter.full_width());
3927 x_offset = x_target.min(max_offset).max(min_offset);
3928 }
3929 };
3930 if element_height_in_lines != block.height() {
3931 *block_resize_offset += element_height_in_lines as i32 - block.height() as i32;
3932 resized_blocks.insert(custom_block_id, element_height_in_lines);
3933 }
3934 }
3935 for i in 0..element_height_in_lines {
3936 row_block_types.insert(row + i, is_block);
3937 }
3938
3939 Some((element, final_size, row, x_offset))
3940 }
3941
3942 fn render_buffer_header(
3943 &self,
3944 for_excerpt: &ExcerptInfo,
3945 is_folded: bool,
3946 is_selected: bool,
3947 is_sticky: bool,
3948 jump_data: JumpData,
3949 window: &mut Window,
3950 cx: &mut App,
3951 ) -> impl IntoElement {
3952 let editor = self.editor.read(cx);
3953 let multi_buffer = editor.buffer.read(cx);
3954 let is_read_only = self.editor.read(cx).read_only(cx);
3955
3956 let file_status = multi_buffer
3957 .all_diff_hunks_expanded()
3958 .then(|| editor.status_for_buffer_id(for_excerpt.buffer_id, cx))
3959 .flatten();
3960 let indicator = multi_buffer
3961 .buffer(for_excerpt.buffer_id)
3962 .and_then(|buffer| {
3963 let buffer = buffer.read(cx);
3964 let indicator_color = match (buffer.has_conflict(), buffer.is_dirty()) {
3965 (true, _) => Some(Color::Warning),
3966 (_, true) => Some(Color::Accent),
3967 (false, false) => None,
3968 };
3969 indicator_color.map(|indicator_color| Indicator::dot().color(indicator_color))
3970 });
3971
3972 let include_root = editor
3973 .project
3974 .as_ref()
3975 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
3976 .unwrap_or_default();
3977 let file = for_excerpt.buffer.file();
3978 let can_open_excerpts = Editor::can_open_excerpts_in_file(file);
3979 let path_style = file.map(|file| file.path_style(cx));
3980 let relative_path = for_excerpt.buffer.resolve_file_path(include_root, cx);
3981 let (parent_path, filename) = if let Some(path) = &relative_path {
3982 if let Some(path_style) = path_style {
3983 let (dir, file_name) = path_style.split(path);
3984 (dir.map(|dir| dir.to_owned()), Some(file_name.to_owned()))
3985 } else {
3986 (None, Some(path.clone()))
3987 }
3988 } else {
3989 (None, None)
3990 };
3991 let focus_handle = editor.focus_handle(cx);
3992 let colors = cx.theme().colors();
3993
3994 let header = div()
3995 .p_1()
3996 .w_full()
3997 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
3998 .child(
3999 h_flex()
4000 .size_full()
4001 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
4002 .pl_1()
4003 .pr_2()
4004 .rounded_sm()
4005 .gap_1p5()
4006 .when(is_sticky, |el| el.shadow_md())
4007 .border_1()
4008 .map(|border| {
4009 let border_color = if is_selected
4010 && is_folded
4011 && focus_handle.contains_focused(window, cx)
4012 {
4013 colors.border_focused
4014 } else {
4015 colors.border
4016 };
4017 border.border_color(border_color)
4018 })
4019 .bg(colors.editor_subheader_background)
4020 .hover(|style| style.bg(colors.element_hover))
4021 .map(|header| {
4022 let editor = self.editor.clone();
4023 let buffer_id = for_excerpt.buffer_id;
4024 let toggle_chevron_icon =
4025 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
4026 let button_size = rems_from_px(28.);
4027
4028 header.child(
4029 div()
4030 .hover(|style| style.bg(colors.element_selected))
4031 .rounded_xs()
4032 .child(
4033 ButtonLike::new("toggle-buffer-fold")
4034 .style(ButtonStyle::Transparent)
4035 .height(button_size.into())
4036 .width(button_size)
4037 .children(toggle_chevron_icon)
4038 .tooltip({
4039 let focus_handle = focus_handle.clone();
4040 let is_folded_for_tooltip = is_folded;
4041 move |_window, cx| {
4042 Tooltip::with_meta_in(
4043 if is_folded_for_tooltip {
4044 "Unfold Excerpt"
4045 } else {
4046 "Fold Excerpt"
4047 },
4048 Some(&ToggleFold),
4049 format!(
4050 "{} to toggle all",
4051 text_for_keystroke(
4052 &Modifiers::alt(),
4053 "click",
4054 cx
4055 )
4056 ),
4057 &focus_handle,
4058 cx,
4059 )
4060 }
4061 })
4062 .on_click(move |event, window, cx| {
4063 if event.modifiers().alt {
4064 // Alt+click toggles all buffers
4065 editor.update(cx, |editor, cx| {
4066 editor.toggle_fold_all(
4067 &ToggleFoldAll,
4068 window,
4069 cx,
4070 );
4071 });
4072 } else {
4073 // Regular click toggles single buffer
4074 if is_folded {
4075 editor.update(cx, |editor, cx| {
4076 editor.unfold_buffer(buffer_id, cx);
4077 });
4078 } else {
4079 editor.update(cx, |editor, cx| {
4080 editor.fold_buffer(buffer_id, cx);
4081 });
4082 }
4083 }
4084 }),
4085 ),
4086 )
4087 })
4088 .children(
4089 editor
4090 .addons
4091 .values()
4092 .filter_map(|addon| {
4093 addon.render_buffer_header_controls(for_excerpt, window, cx)
4094 })
4095 .take(1),
4096 )
4097 .when(!is_read_only, |this| {
4098 this.child(
4099 h_flex()
4100 .size_3()
4101 .justify_center()
4102 .flex_shrink_0()
4103 .children(indicator),
4104 )
4105 })
4106 .child(
4107 h_flex()
4108 .cursor_pointer()
4109 .id("path_header_block")
4110 .min_w_0()
4111 .size_full()
4112 .justify_between()
4113 .overflow_hidden()
4114 .child(h_flex().min_w_0().flex_1().gap_0p5().map(|path_header| {
4115 let filename = filename
4116 .map(SharedString::from)
4117 .unwrap_or_else(|| "untitled".into());
4118
4119 path_header
4120 .when(ItemSettings::get_global(cx).file_icons, |el| {
4121 let path = path::Path::new(filename.as_str());
4122 let icon =
4123 FileIcons::get_icon(path, cx).unwrap_or_default();
4124
4125 el.child(Icon::from_path(icon).color(Color::Muted))
4126 })
4127 .child(
4128 ButtonLike::new("filename-button")
4129 .child(
4130 Label::new(filename)
4131 .single_line()
4132 .color(file_status_label_color(file_status))
4133 .when(
4134 file_status.is_some_and(|s| s.is_deleted()),
4135 |label| label.strikethrough(),
4136 ),
4137 )
4138 .on_click(window.listener_for(&self.editor, {
4139 let jump_data = jump_data.clone();
4140 move |editor, e: &ClickEvent, window, cx| {
4141 editor.open_excerpts_common(
4142 Some(jump_data.clone()),
4143 e.modifiers().secondary(),
4144 window,
4145 cx,
4146 );
4147 }
4148 })),
4149 )
4150 .when(!for_excerpt.buffer.capability.editable(), |el| {
4151 el.child(Icon::new(IconName::FileLock).color(Color::Muted))
4152 })
4153 .when_some(parent_path, |then, path| {
4154 then.child(Label::new(path).truncate().color(
4155 if file_status.is_some_and(FileStatus::is_deleted) {
4156 Color::Custom(colors.text_disabled)
4157 } else {
4158 Color::Custom(colors.text_muted)
4159 },
4160 ))
4161 })
4162 }))
4163 .when(
4164 can_open_excerpts && is_selected && relative_path.is_some(),
4165 |el| {
4166 el.child(
4167 Button::new("open-file-button", "Open File")
4168 .style(ButtonStyle::OutlinedGhost)
4169 .key_binding(KeyBinding::for_action_in(
4170 &OpenExcerpts,
4171 &focus_handle,
4172 cx,
4173 ))
4174 .on_click(window.listener_for(&self.editor, {
4175 let jump_data = jump_data.clone();
4176 move |editor, e: &ClickEvent, window, cx| {
4177 editor.open_excerpts_common(
4178 Some(jump_data.clone()),
4179 e.modifiers().secondary(),
4180 window,
4181 cx,
4182 );
4183 }
4184 })),
4185 )
4186 },
4187 )
4188 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
4189 .on_click(window.listener_for(&self.editor, {
4190 let buffer_id = for_excerpt.buffer_id;
4191 move |editor, e: &ClickEvent, window, cx| {
4192 if e.modifiers().alt {
4193 editor.open_excerpts_common(
4194 Some(jump_data.clone()),
4195 e.modifiers().secondary(),
4196 window,
4197 cx,
4198 );
4199 return;
4200 }
4201
4202 if is_folded {
4203 editor.unfold_buffer(buffer_id, cx);
4204 } else {
4205 editor.fold_buffer(buffer_id, cx);
4206 }
4207 }
4208 })),
4209 ),
4210 );
4211
4212 let file = for_excerpt.buffer.file().cloned();
4213 let editor = self.editor.clone();
4214
4215 right_click_menu("buffer-header-context-menu")
4216 .trigger(move |_, _, _| header)
4217 .menu(move |window, cx| {
4218 let menu_context = focus_handle.clone();
4219 let editor = editor.clone();
4220 let file = file.clone();
4221 ContextMenu::build(window, cx, move |mut menu, window, cx| {
4222 if let Some(file) = file
4223 && let Some(project) = editor.read(cx).project()
4224 && let Some(worktree) =
4225 project.read(cx).worktree_for_id(file.worktree_id(cx), cx)
4226 {
4227 let path_style = file.path_style(cx);
4228 let worktree = worktree.read(cx);
4229 let relative_path = file.path();
4230 let entry_for_path = worktree.entry_for_path(relative_path);
4231 let abs_path = entry_for_path.map(|e| {
4232 e.canonical_path.as_deref().map_or_else(
4233 || worktree.absolutize(relative_path),
4234 Path::to_path_buf,
4235 )
4236 });
4237 let has_relative_path = worktree.root_entry().is_some_and(Entry::is_dir);
4238
4239 let parent_abs_path = abs_path
4240 .as_ref()
4241 .and_then(|abs_path| Some(abs_path.parent()?.to_path_buf()));
4242 let relative_path = has_relative_path
4243 .then_some(relative_path)
4244 .map(ToOwned::to_owned);
4245
4246 let visible_in_project_panel =
4247 relative_path.is_some() && worktree.is_visible();
4248 let reveal_in_project_panel = entry_for_path
4249 .filter(|_| visible_in_project_panel)
4250 .map(|entry| entry.id);
4251 menu = menu
4252 .when_some(abs_path, |menu, abs_path| {
4253 menu.entry(
4254 "Copy Path",
4255 Some(Box::new(zed_actions::workspace::CopyPath)),
4256 window.handler_for(&editor, move |_, _, cx| {
4257 cx.write_to_clipboard(ClipboardItem::new_string(
4258 abs_path.to_string_lossy().into_owned(),
4259 ));
4260 }),
4261 )
4262 })
4263 .when_some(relative_path, |menu, relative_path| {
4264 menu.entry(
4265 "Copy Relative Path",
4266 Some(Box::new(zed_actions::workspace::CopyRelativePath)),
4267 window.handler_for(&editor, move |_, _, cx| {
4268 cx.write_to_clipboard(ClipboardItem::new_string(
4269 relative_path.display(path_style).to_string(),
4270 ));
4271 }),
4272 )
4273 })
4274 .when(
4275 reveal_in_project_panel.is_some() || parent_abs_path.is_some(),
4276 |menu| menu.separator(),
4277 )
4278 .when_some(reveal_in_project_panel, |menu, entry_id| {
4279 menu.entry(
4280 "Reveal In Project Panel",
4281 Some(Box::new(RevealInProjectPanel::default())),
4282 window.handler_for(&editor, move |editor, _, cx| {
4283 if let Some(project) = &mut editor.project {
4284 project.update(cx, |_, cx| {
4285 cx.emit(project::Event::RevealInProjectPanel(
4286 entry_id,
4287 ))
4288 });
4289 }
4290 }),
4291 )
4292 })
4293 .when_some(parent_abs_path, |menu, parent_abs_path| {
4294 menu.entry(
4295 "Open in Terminal",
4296 Some(Box::new(OpenInTerminal)),
4297 window.handler_for(&editor, move |_, window, cx| {
4298 window.dispatch_action(
4299 OpenTerminal {
4300 working_directory: parent_abs_path.clone(),
4301 }
4302 .boxed_clone(),
4303 cx,
4304 );
4305 }),
4306 )
4307 });
4308 }
4309
4310 menu.context(menu_context)
4311 })
4312 })
4313 }
4314
4315 fn render_blocks(
4316 &self,
4317 rows: Range<DisplayRow>,
4318 snapshot: &EditorSnapshot,
4319 hitbox: &Hitbox,
4320 text_hitbox: &Hitbox,
4321 editor_width: Pixels,
4322 scroll_width: &mut Pixels,
4323 editor_margins: &EditorMargins,
4324 em_width: Pixels,
4325 text_x: Pixels,
4326 line_height: Pixels,
4327 line_layouts: &mut [LineWithInvisibles],
4328 selections: &[Selection<Point>],
4329 selected_buffer_ids: &Vec<BufferId>,
4330 latest_selection_anchors: &HashMap<BufferId, Anchor>,
4331 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4332 sticky_header_excerpt_id: Option<ExcerptId>,
4333 window: &mut Window,
4334 cx: &mut App,
4335 ) -> RenderBlocksOutput {
4336 let (fixed_blocks, non_fixed_blocks) = snapshot
4337 .blocks_in_range(rows.clone())
4338 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
4339
4340 let mut focused_block = self
4341 .editor
4342 .update(cx, |editor, _| editor.take_focused_block());
4343 let mut fixed_block_max_width = Pixels::ZERO;
4344 let mut blocks = Vec::new();
4345 let mut resized_blocks = HashMap::default();
4346 let mut row_block_types = HashMap::default();
4347 let mut block_resize_offset: i32 = 0;
4348
4349 for (row, block) in fixed_blocks {
4350 let block_id = block.id();
4351
4352 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4353 focused_block = None;
4354 }
4355
4356 if let Some((element, element_size, row, x_offset)) = self.render_block(
4357 block,
4358 AvailableSpace::MinContent,
4359 block_id,
4360 row,
4361 snapshot,
4362 text_x,
4363 &rows,
4364 line_layouts,
4365 editor_margins,
4366 line_height,
4367 em_width,
4368 text_hitbox,
4369 editor_width,
4370 scroll_width,
4371 &mut resized_blocks,
4372 &mut row_block_types,
4373 selections,
4374 selected_buffer_ids,
4375 latest_selection_anchors,
4376 is_row_soft_wrapped,
4377 sticky_header_excerpt_id,
4378 &mut block_resize_offset,
4379 window,
4380 cx,
4381 ) {
4382 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
4383 blocks.push(BlockLayout {
4384 id: block_id,
4385 x_offset,
4386 row: Some(row),
4387 element,
4388 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
4389 style: BlockStyle::Fixed,
4390 overlaps_gutter: true,
4391 is_buffer_header: block.is_buffer_header(),
4392 });
4393 }
4394 }
4395
4396 for (row, block) in non_fixed_blocks {
4397 let style = block.style();
4398 let width = match (style, block.place_near()) {
4399 (_, true) => AvailableSpace::MinContent,
4400 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
4401 (BlockStyle::Flex, _) => hitbox
4402 .size
4403 .width
4404 .max(fixed_block_max_width)
4405 .max(editor_margins.gutter.width + *scroll_width)
4406 .into(),
4407 (BlockStyle::Fixed, _) => unreachable!(),
4408 };
4409 let block_id = block.id();
4410
4411 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4412 focused_block = None;
4413 }
4414
4415 if let Some((element, element_size, row, x_offset)) = self.render_block(
4416 block,
4417 width,
4418 block_id,
4419 row,
4420 snapshot,
4421 text_x,
4422 &rows,
4423 line_layouts,
4424 editor_margins,
4425 line_height,
4426 em_width,
4427 text_hitbox,
4428 editor_width,
4429 scroll_width,
4430 &mut resized_blocks,
4431 &mut row_block_types,
4432 selections,
4433 selected_buffer_ids,
4434 latest_selection_anchors,
4435 is_row_soft_wrapped,
4436 sticky_header_excerpt_id,
4437 &mut block_resize_offset,
4438 window,
4439 cx,
4440 ) {
4441 blocks.push(BlockLayout {
4442 id: block_id,
4443 x_offset,
4444 row: Some(row),
4445 element,
4446 available_space: size(width, element_size.height.into()),
4447 style,
4448 overlaps_gutter: !block.place_near(),
4449 is_buffer_header: block.is_buffer_header(),
4450 });
4451 }
4452 }
4453
4454 if let Some(focused_block) = focused_block
4455 && let Some(focus_handle) = focused_block.focus_handle.upgrade()
4456 && focus_handle.is_focused(window)
4457 && let Some(block) = snapshot.block_for_id(focused_block.id)
4458 {
4459 let style = block.style();
4460 let width = match style {
4461 BlockStyle::Fixed => AvailableSpace::MinContent,
4462 BlockStyle::Flex => AvailableSpace::Definite(
4463 hitbox
4464 .size
4465 .width
4466 .max(fixed_block_max_width)
4467 .max(editor_margins.gutter.width + *scroll_width),
4468 ),
4469 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
4470 };
4471
4472 if let Some((element, element_size, _, x_offset)) = self.render_block(
4473 &block,
4474 width,
4475 focused_block.id,
4476 rows.end,
4477 snapshot,
4478 text_x,
4479 &rows,
4480 line_layouts,
4481 editor_margins,
4482 line_height,
4483 em_width,
4484 text_hitbox,
4485 editor_width,
4486 scroll_width,
4487 &mut resized_blocks,
4488 &mut row_block_types,
4489 selections,
4490 selected_buffer_ids,
4491 latest_selection_anchors,
4492 is_row_soft_wrapped,
4493 sticky_header_excerpt_id,
4494 &mut block_resize_offset,
4495 window,
4496 cx,
4497 ) {
4498 blocks.push(BlockLayout {
4499 id: block.id(),
4500 x_offset,
4501 row: None,
4502 element,
4503 available_space: size(width, element_size.height.into()),
4504 style,
4505 overlaps_gutter: true,
4506 is_buffer_header: block.is_buffer_header(),
4507 });
4508 }
4509 }
4510
4511 if resized_blocks.is_empty() {
4512 *scroll_width =
4513 (*scroll_width).max(fixed_block_max_width - editor_margins.gutter.width);
4514 }
4515
4516 RenderBlocksOutput {
4517 blocks,
4518 row_block_types,
4519 resized_blocks: (!resized_blocks.is_empty()).then_some(resized_blocks),
4520 }
4521 }
4522
4523 fn layout_blocks(
4524 &self,
4525 blocks: &mut Vec<BlockLayout>,
4526 hitbox: &Hitbox,
4527 line_height: Pixels,
4528 scroll_position: gpui::Point<ScrollOffset>,
4529 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4530 window: &mut Window,
4531 cx: &mut App,
4532 ) {
4533 for block in blocks {
4534 let mut origin = if let Some(row) = block.row {
4535 hitbox.origin
4536 + point(
4537 block.x_offset,
4538 Pixels::from(
4539 (row.as_f64() - scroll_position.y)
4540 * ScrollPixelOffset::from(line_height),
4541 ),
4542 )
4543 } else {
4544 // Position the block outside the visible area
4545 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
4546 };
4547
4548 if !matches!(block.style, BlockStyle::Sticky) {
4549 origin += point(Pixels::from(-scroll_pixel_position.x), Pixels::ZERO);
4550 }
4551
4552 let focus_handle =
4553 block
4554 .element
4555 .prepaint_as_root(origin, block.available_space, window, cx);
4556
4557 if let Some(focus_handle) = focus_handle {
4558 self.editor.update(cx, |editor, _cx| {
4559 editor.set_focused_block(FocusedBlock {
4560 id: block.id,
4561 focus_handle: focus_handle.downgrade(),
4562 });
4563 });
4564 }
4565 }
4566 }
4567
4568 fn layout_sticky_buffer_header(
4569 &self,
4570 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
4571 scroll_position: gpui::Point<ScrollOffset>,
4572 line_height: Pixels,
4573 right_margin: Pixels,
4574 snapshot: &EditorSnapshot,
4575 hitbox: &Hitbox,
4576 selected_buffer_ids: &Vec<BufferId>,
4577 blocks: &[BlockLayout],
4578 latest_selection_anchors: &HashMap<BufferId, Anchor>,
4579 window: &mut Window,
4580 cx: &mut App,
4581 ) -> AnyElement {
4582 let jump_data = header_jump_data(
4583 snapshot,
4584 DisplayRow(scroll_position.y as u32),
4585 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
4586 excerpt,
4587 latest_selection_anchors,
4588 );
4589
4590 let editor_bg_color = cx.theme().colors().editor_background;
4591
4592 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
4593
4594 let available_width = hitbox.bounds.size.width - right_margin;
4595
4596 let mut header = v_flex()
4597 .w_full()
4598 .relative()
4599 .child(
4600 div()
4601 .w(available_width)
4602 .h(FILE_HEADER_HEIGHT as f32 * line_height)
4603 .bg(linear_gradient(
4604 0.,
4605 linear_color_stop(editor_bg_color.opacity(0.), 0.),
4606 linear_color_stop(editor_bg_color, 0.6),
4607 ))
4608 .absolute()
4609 .top_0(),
4610 )
4611 .child(
4612 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
4613 .into_any_element(),
4614 )
4615 .into_any_element();
4616
4617 let mut origin = hitbox.origin;
4618 // Move floating header up to avoid colliding with the next buffer header.
4619 for block in blocks.iter() {
4620 if !block.is_buffer_header {
4621 continue;
4622 }
4623
4624 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position.y as u32) else {
4625 continue;
4626 };
4627
4628 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
4629 let offset = scroll_position.y - max_row as f64;
4630
4631 if offset > 0.0 {
4632 origin.y -= Pixels::from(offset * ScrollPixelOffset::from(line_height));
4633 }
4634 break;
4635 }
4636
4637 let size = size(
4638 AvailableSpace::Definite(available_width),
4639 AvailableSpace::MinContent,
4640 );
4641
4642 header.prepaint_as_root(origin, size, window, cx);
4643
4644 header
4645 }
4646
4647 fn layout_sticky_headers(
4648 &self,
4649 snapshot: &EditorSnapshot,
4650 editor_width: Pixels,
4651 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4652 line_height: Pixels,
4653 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4654 content_origin: gpui::Point<Pixels>,
4655 gutter_dimensions: &GutterDimensions,
4656 gutter_hitbox: &Hitbox,
4657 text_hitbox: &Hitbox,
4658 style: &EditorStyle,
4659 window: &mut Window,
4660 cx: &mut App,
4661 ) -> Option<StickyHeaders> {
4662 let show_line_numbers = snapshot
4663 .show_line_numbers
4664 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
4665
4666 let rows = Self::sticky_headers(self.editor.read(cx), snapshot, style, cx);
4667
4668 let mut lines = Vec::<StickyHeaderLine>::new();
4669
4670 for StickyHeader {
4671 item,
4672 sticky_row,
4673 start_point,
4674 offset,
4675 } in rows.into_iter().rev()
4676 {
4677 let line = layout_line(
4678 sticky_row,
4679 snapshot,
4680 &self.style,
4681 editor_width,
4682 is_row_soft_wrapped,
4683 window,
4684 cx,
4685 );
4686
4687 let line_number = show_line_numbers.then(|| {
4688 let number = (start_point.row + 1).to_string();
4689 let color = cx.theme().colors().editor_line_number;
4690 self.shape_line_number(SharedString::from(number), color, window)
4691 });
4692
4693 lines.push(StickyHeaderLine::new(
4694 sticky_row,
4695 line_height * offset as f32,
4696 line,
4697 line_number,
4698 item.range.start,
4699 line_height,
4700 scroll_pixel_position,
4701 content_origin,
4702 gutter_hitbox,
4703 text_hitbox,
4704 window,
4705 cx,
4706 ));
4707 }
4708
4709 lines.reverse();
4710 if lines.is_empty() {
4711 return None;
4712 }
4713
4714 Some(StickyHeaders {
4715 lines,
4716 gutter_background: cx.theme().colors().editor_gutter_background,
4717 content_background: self.style.background,
4718 gutter_right_padding: gutter_dimensions.right_padding,
4719 })
4720 }
4721
4722 pub(crate) fn sticky_headers(
4723 editor: &Editor,
4724 snapshot: &EditorSnapshot,
4725 style: &EditorStyle,
4726 cx: &App,
4727 ) -> Vec<StickyHeader> {
4728 let scroll_top = snapshot.scroll_position().y;
4729
4730 let mut end_rows = Vec::<DisplayRow>::new();
4731 let mut rows = Vec::<StickyHeader>::new();
4732
4733 let items = editor.sticky_headers(style, cx).unwrap_or_default();
4734
4735 for item in items {
4736 let start_point = item.range.start.to_point(snapshot.buffer_snapshot());
4737 let end_point = item.range.end.to_point(snapshot.buffer_snapshot());
4738
4739 let sticky_row = snapshot
4740 .display_snapshot
4741 .point_to_display_point(start_point, Bias::Left)
4742 .row();
4743 let end_row = snapshot
4744 .display_snapshot
4745 .point_to_display_point(end_point, Bias::Left)
4746 .row();
4747 let max_sticky_row = end_row.previous_row();
4748 if max_sticky_row <= sticky_row {
4749 continue;
4750 }
4751
4752 while end_rows
4753 .last()
4754 .is_some_and(|&last_end| last_end < sticky_row)
4755 {
4756 end_rows.pop();
4757 }
4758 let depth = end_rows.len();
4759 let adjusted_scroll_top = scroll_top + depth as f64;
4760
4761 if sticky_row.as_f64() >= adjusted_scroll_top || end_row.as_f64() <= adjusted_scroll_top
4762 {
4763 continue;
4764 }
4765
4766 let max_scroll_offset = max_sticky_row.as_f64() - scroll_top;
4767 let offset = (depth as f64).min(max_scroll_offset);
4768
4769 end_rows.push(end_row);
4770 rows.push(StickyHeader {
4771 item,
4772 sticky_row,
4773 start_point,
4774 offset,
4775 });
4776 }
4777
4778 rows
4779 }
4780
4781 fn layout_cursor_popovers(
4782 &self,
4783 line_height: Pixels,
4784 text_hitbox: &Hitbox,
4785 content_origin: gpui::Point<Pixels>,
4786 right_margin: Pixels,
4787 start_row: DisplayRow,
4788 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4789 line_layouts: &[LineWithInvisibles],
4790 cursor: DisplayPoint,
4791 cursor_point: Point,
4792 style: &EditorStyle,
4793 window: &mut Window,
4794 cx: &mut App,
4795 ) -> Option<ContextMenuLayout> {
4796 let mut min_menu_height = Pixels::ZERO;
4797 let mut max_menu_height = Pixels::ZERO;
4798 let mut height_above_menu = Pixels::ZERO;
4799 let height_below_menu = Pixels::ZERO;
4800 let mut edit_prediction_popover_visible = false;
4801 let mut context_menu_visible = false;
4802 let context_menu_placement;
4803
4804 {
4805 let editor = self.editor.read(cx);
4806 if editor.edit_prediction_visible_in_cursor_popover(editor.has_active_edit_prediction())
4807 {
4808 height_above_menu +=
4809 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
4810 edit_prediction_popover_visible = true;
4811 }
4812
4813 if editor.context_menu_visible()
4814 && let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin()
4815 {
4816 let (min_height_in_lines, max_height_in_lines) = editor
4817 .context_menu_options
4818 .as_ref()
4819 .map_or((3, 12), |options| {
4820 (options.min_entries_visible, options.max_entries_visible)
4821 });
4822
4823 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4824 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4825 context_menu_visible = true;
4826 }
4827 context_menu_placement = editor
4828 .context_menu_options
4829 .as_ref()
4830 .and_then(|options| options.placement.clone());
4831 }
4832
4833 let visible = edit_prediction_popover_visible || context_menu_visible;
4834 if !visible {
4835 return None;
4836 }
4837
4838 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
4839 let target_position = content_origin
4840 + gpui::Point {
4841 x: cmp::max(
4842 px(0.),
4843 Pixels::from(
4844 ScrollPixelOffset::from(
4845 cursor_row_layout.x_for_index(cursor.column() as usize),
4846 ) - scroll_pixel_position.x,
4847 ),
4848 ),
4849 y: cmp::max(
4850 px(0.),
4851 Pixels::from(
4852 cursor.row().next_row().as_f64() * ScrollPixelOffset::from(line_height)
4853 - scroll_pixel_position.y,
4854 ),
4855 ),
4856 };
4857
4858 let viewport_bounds =
4859 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4860 right: -right_margin - MENU_GAP,
4861 ..Default::default()
4862 });
4863
4864 let min_height = height_above_menu + min_menu_height + height_below_menu;
4865 let max_height = height_above_menu + max_menu_height + height_below_menu;
4866 let (laid_out_popovers, y_flipped) = self.layout_popovers_above_or_below_line(
4867 target_position,
4868 line_height,
4869 min_height,
4870 max_height,
4871 context_menu_placement,
4872 text_hitbox,
4873 viewport_bounds,
4874 window,
4875 cx,
4876 |height, max_width_for_stable_x, y_flipped, window, cx| {
4877 // First layout the menu to get its size - others can be at least this wide.
4878 let context_menu = if context_menu_visible {
4879 let menu_height = if y_flipped {
4880 height - height_below_menu
4881 } else {
4882 height - height_above_menu
4883 };
4884 let mut element = self
4885 .render_context_menu(line_height, menu_height, window, cx)
4886 .expect("Visible context menu should always render.");
4887 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4888 Some((CursorPopoverType::CodeContextMenu, element, size))
4889 } else {
4890 None
4891 };
4892 let min_width = context_menu
4893 .as_ref()
4894 .map_or(px(0.), |(_, _, size)| size.width);
4895 let max_width = max_width_for_stable_x.max(
4896 context_menu
4897 .as_ref()
4898 .map_or(px(0.), |(_, _, size)| size.width),
4899 );
4900
4901 let edit_prediction = if edit_prediction_popover_visible {
4902 self.editor.update(cx, move |editor, cx| {
4903 let accept_binding = editor.accept_edit_prediction_keybind(
4904 EditPredictionGranularity::Full,
4905 window,
4906 cx,
4907 );
4908 let mut element = editor.render_edit_prediction_cursor_popover(
4909 min_width,
4910 max_width,
4911 cursor_point,
4912 style,
4913 accept_binding.keystroke(),
4914 window,
4915 cx,
4916 )?;
4917 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4918 Some((CursorPopoverType::EditPrediction, element, size))
4919 })
4920 } else {
4921 None
4922 };
4923 vec![edit_prediction, context_menu]
4924 .into_iter()
4925 .flatten()
4926 .collect::<Vec<_>>()
4927 },
4928 )?;
4929
4930 let (menu_ix, (_, menu_bounds)) = laid_out_popovers
4931 .iter()
4932 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))?;
4933 let last_ix = laid_out_popovers.len() - 1;
4934 let menu_is_last = menu_ix == last_ix;
4935 let first_popover_bounds = laid_out_popovers[0].1;
4936 let last_popover_bounds = laid_out_popovers[last_ix].1;
4937
4938 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
4939 // right, and otherwise it goes below or to the right.
4940 let mut target_bounds = Bounds::from_corners(
4941 first_popover_bounds.origin,
4942 last_popover_bounds.bottom_right(),
4943 );
4944 target_bounds.size.width = menu_bounds.size.width;
4945
4946 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
4947 // based on this is preferred for layout stability.
4948 let mut max_target_bounds = target_bounds;
4949 max_target_bounds.size.height = max_height;
4950 if y_flipped {
4951 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
4952 }
4953
4954 // Add spacing around `target_bounds` and `max_target_bounds`.
4955 let mut extend_amount = Edges::all(MENU_GAP);
4956 if y_flipped {
4957 extend_amount.bottom = line_height;
4958 } else {
4959 extend_amount.top = line_height;
4960 }
4961 let target_bounds = target_bounds.extend(extend_amount);
4962 let max_target_bounds = max_target_bounds.extend(extend_amount);
4963
4964 let must_place_above_or_below =
4965 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
4966 laid_out_popovers[menu_ix + 1..]
4967 .iter()
4968 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
4969 } else {
4970 false
4971 };
4972
4973 let aside_bounds = self.layout_context_menu_aside(
4974 y_flipped,
4975 *menu_bounds,
4976 target_bounds,
4977 max_target_bounds,
4978 max_menu_height,
4979 must_place_above_or_below,
4980 text_hitbox,
4981 viewport_bounds,
4982 window,
4983 cx,
4984 );
4985
4986 if let Some(menu_bounds) = laid_out_popovers.iter().find_map(|(popover_type, bounds)| {
4987 if matches!(popover_type, CursorPopoverType::CodeContextMenu) {
4988 Some(*bounds)
4989 } else {
4990 None
4991 }
4992 }) {
4993 let bounds = if let Some(aside_bounds) = aside_bounds {
4994 menu_bounds.union(&aside_bounds)
4995 } else {
4996 menu_bounds
4997 };
4998 return Some(ContextMenuLayout { y_flipped, bounds });
4999 }
5000
5001 None
5002 }
5003
5004 fn layout_gutter_menu(
5005 &self,
5006 line_height: Pixels,
5007 text_hitbox: &Hitbox,
5008 content_origin: gpui::Point<Pixels>,
5009 right_margin: Pixels,
5010 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5011 gutter_overshoot: Pixels,
5012 window: &mut Window,
5013 cx: &mut App,
5014 ) {
5015 let editor = self.editor.read(cx);
5016 if !editor.context_menu_visible() {
5017 return;
5018 }
5019 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
5020 editor.context_menu_origin()
5021 else {
5022 return;
5023 };
5024 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
5025 // indicator than just a plain first column of the text field.
5026 let target_position = content_origin
5027 + gpui::Point {
5028 x: -gutter_overshoot,
5029 y: Pixels::from(
5030 gutter_row.next_row().as_f64() * ScrollPixelOffset::from(line_height)
5031 - scroll_pixel_position.y,
5032 ),
5033 };
5034
5035 let (min_height_in_lines, max_height_in_lines) = editor
5036 .context_menu_options
5037 .as_ref()
5038 .map_or((3, 12), |options| {
5039 (options.min_entries_visible, options.max_entries_visible)
5040 });
5041
5042 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
5043 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
5044 let viewport_bounds =
5045 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
5046 right: -right_margin - MENU_GAP,
5047 ..Default::default()
5048 });
5049 self.layout_popovers_above_or_below_line(
5050 target_position,
5051 line_height,
5052 min_height,
5053 max_height,
5054 editor
5055 .context_menu_options
5056 .as_ref()
5057 .and_then(|options| options.placement.clone()),
5058 text_hitbox,
5059 viewport_bounds,
5060 window,
5061 cx,
5062 move |height, _max_width_for_stable_x, _, window, cx| {
5063 let mut element = self
5064 .render_context_menu(line_height, height, window, cx)
5065 .expect("Visible context menu should always render.");
5066 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
5067 vec![(CursorPopoverType::CodeContextMenu, element, size)]
5068 },
5069 );
5070 }
5071
5072 fn layout_popovers_above_or_below_line(
5073 &self,
5074 target_position: gpui::Point<Pixels>,
5075 line_height: Pixels,
5076 min_height: Pixels,
5077 max_height: Pixels,
5078 placement: Option<ContextMenuPlacement>,
5079 text_hitbox: &Hitbox,
5080 viewport_bounds: Bounds<Pixels>,
5081 window: &mut Window,
5082 cx: &mut App,
5083 make_sized_popovers: impl FnOnce(
5084 Pixels,
5085 Pixels,
5086 bool,
5087 &mut Window,
5088 &mut App,
5089 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
5090 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
5091 let text_style = TextStyleRefinement {
5092 line_height: Some(DefiniteLength::Fraction(
5093 BufferLineHeight::Comfortable.value(),
5094 )),
5095 ..Default::default()
5096 };
5097 window.with_text_style(Some(text_style), |window| {
5098 // If the max height won't fit below and there is more space above, put it above the line.
5099 let bottom_y_when_flipped = target_position.y - line_height;
5100 let available_above = bottom_y_when_flipped - text_hitbox.top();
5101 let available_below = text_hitbox.bottom() - target_position.y;
5102 let y_overflows_below = max_height > available_below;
5103 let mut y_flipped = match placement {
5104 Some(ContextMenuPlacement::Above) => true,
5105 Some(ContextMenuPlacement::Below) => false,
5106 None => y_overflows_below && available_above > available_below,
5107 };
5108 let mut height = cmp::min(
5109 max_height,
5110 if y_flipped {
5111 available_above
5112 } else {
5113 available_below
5114 },
5115 );
5116
5117 // If the min height doesn't fit within text bounds, instead fit within the window.
5118 if height < min_height {
5119 let available_above = bottom_y_when_flipped;
5120 let available_below = viewport_bounds.bottom() - target_position.y;
5121 let (y_flipped_override, height_override) = match placement {
5122 Some(ContextMenuPlacement::Above) => {
5123 (true, cmp::min(available_above, min_height))
5124 }
5125 Some(ContextMenuPlacement::Below) => {
5126 (false, cmp::min(available_below, min_height))
5127 }
5128 None => {
5129 if available_below > min_height {
5130 (false, min_height)
5131 } else if available_above > min_height {
5132 (true, min_height)
5133 } else if available_above > available_below {
5134 (true, available_above)
5135 } else {
5136 (false, available_below)
5137 }
5138 }
5139 };
5140 y_flipped = y_flipped_override;
5141 height = height_override;
5142 }
5143
5144 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
5145
5146 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
5147 // for very narrow windows.
5148 let popovers =
5149 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
5150 if popovers.is_empty() {
5151 return None;
5152 }
5153
5154 let max_width = popovers
5155 .iter()
5156 .map(|(_, _, size)| size.width)
5157 .max()
5158 .unwrap_or_default();
5159
5160 let mut current_position = gpui::Point {
5161 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
5162 // overflow. Include space for the scrollbar.
5163 x: target_position
5164 .x
5165 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
5166 y: if y_flipped {
5167 bottom_y_when_flipped
5168 } else {
5169 target_position.y
5170 },
5171 };
5172
5173 let mut laid_out_popovers = popovers
5174 .into_iter()
5175 .map(|(popover_type, element, size)| {
5176 if y_flipped {
5177 current_position.y -= size.height;
5178 }
5179 let position = current_position;
5180 window.defer_draw(element, current_position, 1);
5181 if !y_flipped {
5182 current_position.y += size.height + MENU_GAP;
5183 } else {
5184 current_position.y -= MENU_GAP;
5185 }
5186 (popover_type, Bounds::new(position, size))
5187 })
5188 .collect::<Vec<_>>();
5189
5190 if y_flipped {
5191 laid_out_popovers.reverse();
5192 }
5193
5194 Some((laid_out_popovers, y_flipped))
5195 })
5196 }
5197
5198 fn layout_context_menu_aside(
5199 &self,
5200 y_flipped: bool,
5201 menu_bounds: Bounds<Pixels>,
5202 target_bounds: Bounds<Pixels>,
5203 max_target_bounds: Bounds<Pixels>,
5204 max_height: Pixels,
5205 must_place_above_or_below: bool,
5206 text_hitbox: &Hitbox,
5207 viewport_bounds: Bounds<Pixels>,
5208 window: &mut Window,
5209 cx: &mut App,
5210 ) -> Option<Bounds<Pixels>> {
5211 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
5212 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
5213 && !must_place_above_or_below
5214 {
5215 let max_width = cmp::min(
5216 available_within_viewport.right - px(1.),
5217 MENU_ASIDE_MAX_WIDTH,
5218 );
5219 let mut aside = self.render_context_menu_aside(
5220 size(max_width, max_height - POPOVER_Y_PADDING),
5221 window,
5222 cx,
5223 )?;
5224 let size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5225 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
5226 Some((aside, right_position, size))
5227 } else {
5228 let max_size = size(
5229 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
5230 // won't be needed here.
5231 cmp::min(
5232 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
5233 viewport_bounds.right(),
5234 ),
5235 cmp::min(
5236 max_height,
5237 cmp::max(
5238 available_within_viewport.top,
5239 available_within_viewport.bottom,
5240 ),
5241 ) - POPOVER_Y_PADDING,
5242 );
5243 let mut aside = self.render_context_menu_aside(max_size, window, cx)?;
5244 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5245
5246 let top_position = point(
5247 menu_bounds.origin.x,
5248 target_bounds.top() - actual_size.height,
5249 );
5250 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
5251
5252 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
5253 // Prefer to fit on the same side of the line as the menu, then on the other side of
5254 // the line.
5255 if !y_flipped && wanted.height < available.bottom {
5256 Some(bottom_position)
5257 } else if !y_flipped && wanted.height < available.top {
5258 Some(top_position)
5259 } else if y_flipped && wanted.height < available.top {
5260 Some(top_position)
5261 } else if y_flipped && wanted.height < available.bottom {
5262 Some(bottom_position)
5263 } else {
5264 None
5265 }
5266 };
5267
5268 // Prefer choosing a direction using max sizes rather than actual size for stability.
5269 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
5270 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
5271 let aside_position = fit_within(available_within_text, wanted)
5272 // Fallback: fit max size in window.
5273 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
5274 // Fallback: fit actual size in window.
5275 .or_else(|| fit_within(available_within_viewport, actual_size));
5276
5277 aside_position.map(|position| (aside, position, actual_size))
5278 };
5279
5280 // Skip drawing if it doesn't fit anywhere.
5281 if let Some((aside, position, size)) = positioned_aside {
5282 let aside_bounds = Bounds::new(position, size);
5283 window.defer_draw(aside, position, 2);
5284 return Some(aside_bounds);
5285 }
5286
5287 None
5288 }
5289
5290 fn render_context_menu(
5291 &self,
5292 line_height: Pixels,
5293 height: Pixels,
5294 window: &mut Window,
5295 cx: &mut App,
5296 ) -> Option<AnyElement> {
5297 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
5298 self.editor.update(cx, |editor, cx| {
5299 editor.render_context_menu(max_height_in_lines, window, cx)
5300 })
5301 }
5302
5303 fn render_context_menu_aside(
5304 &self,
5305 max_size: Size<Pixels>,
5306 window: &mut Window,
5307 cx: &mut App,
5308 ) -> Option<AnyElement> {
5309 if max_size.width < px(100.) || max_size.height < px(12.) {
5310 None
5311 } else {
5312 self.editor.update(cx, |editor, cx| {
5313 editor.render_context_menu_aside(max_size, window, cx)
5314 })
5315 }
5316 }
5317
5318 fn layout_mouse_context_menu(
5319 &self,
5320 editor_snapshot: &EditorSnapshot,
5321 visible_range: Range<DisplayRow>,
5322 content_origin: gpui::Point<Pixels>,
5323 window: &mut Window,
5324 cx: &mut App,
5325 ) -> Option<AnyElement> {
5326 let position = self.editor.update(cx, |editor, cx| {
5327 let visible_start_point = editor.display_to_pixel_point(
5328 DisplayPoint::new(visible_range.start, 0),
5329 editor_snapshot,
5330 window,
5331 cx,
5332 )?;
5333 let visible_end_point = editor.display_to_pixel_point(
5334 DisplayPoint::new(visible_range.end, 0),
5335 editor_snapshot,
5336 window,
5337 cx,
5338 )?;
5339
5340 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5341 let (source_display_point, position) = match mouse_context_menu.position {
5342 MenuPosition::PinnedToScreen(point) => (None, point),
5343 MenuPosition::PinnedToEditor { source, offset } => {
5344 let source_display_point = source.to_display_point(editor_snapshot);
5345 let source_point =
5346 editor.to_pixel_point(source, editor_snapshot, window, cx)?;
5347 let position = content_origin + source_point + offset;
5348 (Some(source_display_point), position)
5349 }
5350 };
5351
5352 let source_included = source_display_point.is_none_or(|source_display_point| {
5353 visible_range
5354 .to_inclusive()
5355 .contains(&source_display_point.row())
5356 });
5357 let position_included =
5358 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
5359 if !source_included && !position_included {
5360 None
5361 } else {
5362 Some(position)
5363 }
5364 })?;
5365
5366 let text_style = TextStyleRefinement {
5367 line_height: Some(DefiniteLength::Fraction(
5368 BufferLineHeight::Comfortable.value(),
5369 )),
5370 ..Default::default()
5371 };
5372 window.with_text_style(Some(text_style), |window| {
5373 let mut element = self.editor.read_with(cx, |editor, _| {
5374 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5375 let context_menu = mouse_context_menu.context_menu.clone();
5376
5377 Some(
5378 deferred(
5379 anchored()
5380 .position(position)
5381 .child(context_menu)
5382 .anchor(Corner::TopLeft)
5383 .snap_to_window_with_margin(px(8.)),
5384 )
5385 .with_priority(1)
5386 .into_any(),
5387 )
5388 })?;
5389
5390 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
5391 Some(element)
5392 })
5393 }
5394
5395 fn layout_hover_popovers(
5396 &self,
5397 snapshot: &EditorSnapshot,
5398 hitbox: &Hitbox,
5399 visible_display_row_range: Range<DisplayRow>,
5400 content_origin: gpui::Point<Pixels>,
5401 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5402 line_layouts: &[LineWithInvisibles],
5403 line_height: Pixels,
5404 em_width: Pixels,
5405 context_menu_layout: Option<ContextMenuLayout>,
5406 window: &mut Window,
5407 cx: &mut App,
5408 ) {
5409 struct MeasuredHoverPopover {
5410 element: AnyElement,
5411 size: Size<Pixels>,
5412 horizontal_offset: Pixels,
5413 }
5414
5415 let max_size = size(
5416 (120. * em_width) // Default size
5417 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5418 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5419 (16. * line_height) // Default size
5420 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5421 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5422 );
5423
5424 // Don't show hover popovers when context menu is open to avoid overlap
5425 let has_context_menu = self.editor.read(cx).mouse_context_menu.is_some();
5426 if has_context_menu {
5427 return;
5428 }
5429
5430 let hover_popovers = self.editor.update(cx, |editor, cx| {
5431 editor.hover_state.render(
5432 snapshot,
5433 visible_display_row_range.clone(),
5434 max_size,
5435 &editor.text_layout_details(window),
5436 window,
5437 cx,
5438 )
5439 });
5440 let Some((popover_position, hover_popovers)) = hover_popovers else {
5441 return;
5442 };
5443
5444 // This is safe because we check on layout whether the required row is available
5445 let hovered_row_layout = &line_layouts[popover_position
5446 .row()
5447 .minus(visible_display_row_range.start)
5448 as usize];
5449
5450 // Compute Hovered Point
5451 let x = hovered_row_layout.x_for_index(popover_position.column() as usize)
5452 - Pixels::from(scroll_pixel_position.x);
5453 let y = Pixels::from(
5454 popover_position.row().as_f64() * ScrollPixelOffset::from(line_height)
5455 - scroll_pixel_position.y,
5456 );
5457 let hovered_point = content_origin + point(x, y);
5458
5459 let mut overall_height = Pixels::ZERO;
5460 let mut measured_hover_popovers = Vec::new();
5461 for (position, mut hover_popover) in hover_popovers.into_iter().with_position() {
5462 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
5463 let horizontal_offset =
5464 (hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
5465 .min(Pixels::ZERO);
5466 match position {
5467 itertools::Position::Middle | itertools::Position::Last => {
5468 overall_height += HOVER_POPOVER_GAP
5469 }
5470 _ => {}
5471 }
5472 overall_height += size.height;
5473 measured_hover_popovers.push(MeasuredHoverPopover {
5474 element: hover_popover,
5475 size,
5476 horizontal_offset,
5477 });
5478 }
5479
5480 fn draw_occluder(
5481 width: Pixels,
5482 origin: gpui::Point<Pixels>,
5483 window: &mut Window,
5484 cx: &mut App,
5485 ) {
5486 let mut occlusion = div()
5487 .size_full()
5488 .occlude()
5489 .on_mouse_move(|_, _, cx| cx.stop_propagation())
5490 .into_any_element();
5491 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
5492 window.defer_draw(occlusion, origin, 2);
5493 }
5494
5495 fn place_popovers_above(
5496 hovered_point: gpui::Point<Pixels>,
5497 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5498 window: &mut Window,
5499 cx: &mut App,
5500 ) {
5501 let mut current_y = hovered_point.y;
5502 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5503 let size = popover.size;
5504 let popover_origin = point(
5505 hovered_point.x + popover.horizontal_offset,
5506 current_y - size.height,
5507 );
5508
5509 window.defer_draw(popover.element, popover_origin, 2);
5510 if position != itertools::Position::Last {
5511 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
5512 draw_occluder(size.width, origin, window, cx);
5513 }
5514
5515 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5516 }
5517 }
5518
5519 fn place_popovers_below(
5520 hovered_point: gpui::Point<Pixels>,
5521 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5522 line_height: Pixels,
5523 window: &mut Window,
5524 cx: &mut App,
5525 ) {
5526 let mut current_y = hovered_point.y + line_height;
5527 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5528 let size = popover.size;
5529 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5530
5531 window.defer_draw(popover.element, popover_origin, 2);
5532 if position != itertools::Position::Last {
5533 let origin = point(popover_origin.x, popover_origin.y + size.height);
5534 draw_occluder(size.width, origin, window, cx);
5535 }
5536
5537 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5538 }
5539 }
5540
5541 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5542 context_menu_layout
5543 .as_ref()
5544 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5545 };
5546
5547 let can_place_above = {
5548 let mut bounds_above = Vec::new();
5549 let mut current_y = hovered_point.y;
5550 for popover in &measured_hover_popovers {
5551 let size = popover.size;
5552 let popover_origin = point(
5553 hovered_point.x + popover.horizontal_offset,
5554 current_y - size.height,
5555 );
5556 bounds_above.push(Bounds::new(popover_origin, size));
5557 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5558 }
5559 bounds_above
5560 .iter()
5561 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5562 };
5563
5564 let can_place_below = || {
5565 let mut bounds_below = Vec::new();
5566 let mut current_y = hovered_point.y + line_height;
5567 for popover in &measured_hover_popovers {
5568 let size = popover.size;
5569 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5570 bounds_below.push(Bounds::new(popover_origin, size));
5571 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5572 }
5573 bounds_below
5574 .iter()
5575 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5576 };
5577
5578 if can_place_above {
5579 // try placing above hovered point
5580 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5581 } else if can_place_below() {
5582 // try placing below hovered point
5583 place_popovers_below(
5584 hovered_point,
5585 measured_hover_popovers,
5586 line_height,
5587 window,
5588 cx,
5589 );
5590 } else {
5591 // try to place popovers around the context menu
5592 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5593 let total_width = measured_hover_popovers
5594 .iter()
5595 .map(|p| p.size.width)
5596 .max()
5597 .unwrap_or(Pixels::ZERO);
5598 let y_for_horizontal_positioning = if menu.y_flipped {
5599 menu.bounds.bottom() - overall_height
5600 } else {
5601 menu.bounds.top()
5602 };
5603 let possible_origins = vec![
5604 // left of context menu
5605 point(
5606 menu.bounds.left() - total_width - HOVER_POPOVER_GAP,
5607 y_for_horizontal_positioning,
5608 ),
5609 // right of context menu
5610 point(
5611 menu.bounds.right() + HOVER_POPOVER_GAP,
5612 y_for_horizontal_positioning,
5613 ),
5614 // top of context menu
5615 point(
5616 menu.bounds.left(),
5617 menu.bounds.top() - overall_height - HOVER_POPOVER_GAP,
5618 ),
5619 // bottom of context menu
5620 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5621 ];
5622 possible_origins.into_iter().find(|&origin| {
5623 Bounds::new(origin, size(total_width, overall_height))
5624 .is_contained_within(hitbox)
5625 })
5626 });
5627 if let Some(origin) = origin_surrounding_menu {
5628 let mut current_y = origin.y;
5629 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5630 let size = popover.size;
5631 let popover_origin = point(origin.x, current_y);
5632
5633 window.defer_draw(popover.element, popover_origin, 2);
5634 if position != itertools::Position::Last {
5635 let origin = point(popover_origin.x, popover_origin.y + size.height);
5636 draw_occluder(size.width, origin, window, cx);
5637 }
5638
5639 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5640 }
5641 } else {
5642 // fallback to existing above/below cursor logic
5643 // this might overlap menu or overflow in rare case
5644 if can_place_above {
5645 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5646 } else {
5647 place_popovers_below(
5648 hovered_point,
5649 measured_hover_popovers,
5650 line_height,
5651 window,
5652 cx,
5653 );
5654 }
5655 }
5656 }
5657 }
5658
5659 fn layout_word_diff_highlights(
5660 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5661 row_infos: &[RowInfo],
5662 start_row: DisplayRow,
5663 snapshot: &EditorSnapshot,
5664 highlighted_ranges: &mut Vec<(Range<DisplayPoint>, Hsla)>,
5665 cx: &mut App,
5666 ) {
5667 let colors = cx.theme().colors();
5668
5669 let word_highlights = display_hunks
5670 .into_iter()
5671 .filter_map(|(hunk, _)| match hunk {
5672 DisplayDiffHunk::Unfolded {
5673 word_diffs, status, ..
5674 } => Some((word_diffs, status)),
5675 _ => None,
5676 })
5677 .filter(|(_, status)| status.is_modified())
5678 .flat_map(|(word_diffs, _)| word_diffs)
5679 .filter_map(|word_diff| {
5680 let start_point = word_diff.start.to_display_point(&snapshot.display_snapshot);
5681 let end_point = word_diff.end.to_display_point(&snapshot.display_snapshot);
5682 let start_row_offset = start_point.row().0.saturating_sub(start_row.0) as usize;
5683
5684 row_infos
5685 .get(start_row_offset)
5686 .and_then(|row_info| row_info.diff_status)
5687 .and_then(|diff_status| {
5688 let background_color = match diff_status.kind {
5689 DiffHunkStatusKind::Added => colors.version_control_word_added,
5690 DiffHunkStatusKind::Deleted => colors.version_control_word_deleted,
5691 DiffHunkStatusKind::Modified => {
5692 debug_panic!("modified diff status for row info");
5693 return None;
5694 }
5695 };
5696 Some((start_point..end_point, background_color))
5697 })
5698 });
5699
5700 highlighted_ranges.extend(word_highlights);
5701 }
5702
5703 fn layout_diff_hunk_controls(
5704 &self,
5705 row_range: Range<DisplayRow>,
5706 row_infos: &[RowInfo],
5707 text_hitbox: &Hitbox,
5708 newest_cursor_position: Option<DisplayPoint>,
5709 line_height: Pixels,
5710 right_margin: Pixels,
5711 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5712 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5713 highlighted_rows: &BTreeMap<DisplayRow, LineHighlight>,
5714 editor: Entity<Editor>,
5715 window: &mut Window,
5716 cx: &mut App,
5717 ) -> (Vec<AnyElement>, Vec<(DisplayRow, Bounds<Pixels>)>) {
5718 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
5719 let hovered_diff_hunk_row = editor.read(cx).hovered_diff_hunk_row;
5720
5721 let mut controls = vec![];
5722 let mut control_bounds = vec![];
5723
5724 let active_positions = [
5725 hovered_diff_hunk_row.map(|row| DisplayPoint::new(row, 0)),
5726 newest_cursor_position,
5727 ];
5728
5729 for (hunk, _) in display_hunks {
5730 if let DisplayDiffHunk::Unfolded {
5731 display_row_range,
5732 multi_buffer_range,
5733 status,
5734 is_created_file,
5735 ..
5736 } = &hunk
5737 {
5738 if display_row_range.start < row_range.start
5739 || display_row_range.start >= row_range.end
5740 {
5741 continue;
5742 }
5743 if highlighted_rows
5744 .get(&display_row_range.start)
5745 .and_then(|highlight| highlight.type_id)
5746 .is_some_and(|type_id| {
5747 [
5748 TypeId::of::<ConflictsOuter>(),
5749 TypeId::of::<ConflictsOursMarker>(),
5750 TypeId::of::<ConflictsOurs>(),
5751 TypeId::of::<ConflictsTheirs>(),
5752 TypeId::of::<ConflictsTheirsMarker>(),
5753 ]
5754 .contains(&type_id)
5755 })
5756 {
5757 continue;
5758 }
5759 let row_ix = (display_row_range.start - row_range.start).0 as usize;
5760 if row_infos[row_ix].diff_status.is_none() {
5761 continue;
5762 }
5763 if row_infos[row_ix]
5764 .diff_status
5765 .is_some_and(|status| status.is_added())
5766 && !status.is_added()
5767 {
5768 continue;
5769 }
5770
5771 if active_positions
5772 .iter()
5773 .any(|p| p.is_some_and(|p| display_row_range.contains(&p.row())))
5774 {
5775 let y = (display_row_range.start.as_f64()
5776 * ScrollPixelOffset::from(line_height)
5777 + ScrollPixelOffset::from(text_hitbox.bounds.top())
5778 - scroll_pixel_position.y)
5779 .into();
5780
5781 let mut element = render_diff_hunk_controls(
5782 display_row_range.start.0,
5783 status,
5784 multi_buffer_range.clone(),
5785 *is_created_file,
5786 line_height,
5787 &editor,
5788 window,
5789 cx,
5790 );
5791 let size =
5792 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
5793
5794 let x = text_hitbox.bounds.right() - right_margin - px(10.) - size.width;
5795
5796 let bounds = Bounds::new(gpui::Point::new(x, y), size);
5797 control_bounds.push((display_row_range.start, bounds));
5798
5799 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
5800 element.prepaint(window, cx)
5801 });
5802 controls.push(element);
5803 }
5804 }
5805 }
5806
5807 (controls, control_bounds)
5808 }
5809
5810 fn layout_signature_help(
5811 &self,
5812 hitbox: &Hitbox,
5813 content_origin: gpui::Point<Pixels>,
5814 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5815 newest_selection_head: Option<DisplayPoint>,
5816 start_row: DisplayRow,
5817 line_layouts: &[LineWithInvisibles],
5818 line_height: Pixels,
5819 em_width: Pixels,
5820 context_menu_layout: Option<ContextMenuLayout>,
5821 window: &mut Window,
5822 cx: &mut App,
5823 ) {
5824 if !self.editor.focus_handle(cx).is_focused(window) {
5825 return;
5826 }
5827 let Some(newest_selection_head) = newest_selection_head else {
5828 return;
5829 };
5830
5831 let max_size = size(
5832 (120. * em_width) // Default size
5833 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5834 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5835 (16. * line_height) // Default size
5836 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5837 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5838 );
5839
5840 let maybe_element = self.editor.update(cx, |editor, cx| {
5841 if let Some(popover) = editor.signature_help_state.popover_mut() {
5842 let element = popover.render(max_size, window, cx);
5843 Some(element)
5844 } else {
5845 None
5846 }
5847 });
5848 let Some(mut element) = maybe_element else {
5849 return;
5850 };
5851
5852 let selection_row = newest_selection_head.row();
5853 let Some(cursor_row_layout) = (selection_row >= start_row)
5854 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
5855 .flatten()
5856 else {
5857 return;
5858 };
5859
5860 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
5861 - Pixels::from(scroll_pixel_position.x);
5862 let target_y = Pixels::from(
5863 selection_row.as_f64() * ScrollPixelOffset::from(line_height) - scroll_pixel_position.y,
5864 );
5865 let target_point = content_origin + point(target_x, target_y);
5866
5867 let actual_size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
5868
5869 let (popover_bounds_above, popover_bounds_below) = {
5870 let horizontal_offset = (hitbox.top_right().x
5871 - POPOVER_RIGHT_OFFSET
5872 - (target_point.x + actual_size.width))
5873 .min(Pixels::ZERO);
5874 let initial_x = target_point.x + horizontal_offset;
5875 (
5876 Bounds::new(
5877 point(initial_x, target_point.y - actual_size.height),
5878 actual_size,
5879 ),
5880 Bounds::new(
5881 point(initial_x, target_point.y + line_height + HOVER_POPOVER_GAP),
5882 actual_size,
5883 ),
5884 )
5885 };
5886
5887 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5888 context_menu_layout
5889 .as_ref()
5890 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5891 };
5892
5893 let final_origin = if popover_bounds_above.is_contained_within(hitbox)
5894 && !intersects_menu(popover_bounds_above)
5895 {
5896 // try placing above cursor
5897 popover_bounds_above.origin
5898 } else if popover_bounds_below.is_contained_within(hitbox)
5899 && !intersects_menu(popover_bounds_below)
5900 {
5901 // try placing below cursor
5902 popover_bounds_below.origin
5903 } else {
5904 // try surrounding context menu if exists
5905 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5906 let y_for_horizontal_positioning = if menu.y_flipped {
5907 menu.bounds.bottom() - actual_size.height
5908 } else {
5909 menu.bounds.top()
5910 };
5911 let possible_origins = vec![
5912 // left of context menu
5913 point(
5914 menu.bounds.left() - actual_size.width - HOVER_POPOVER_GAP,
5915 y_for_horizontal_positioning,
5916 ),
5917 // right of context menu
5918 point(
5919 menu.bounds.right() + HOVER_POPOVER_GAP,
5920 y_for_horizontal_positioning,
5921 ),
5922 // top of context menu
5923 point(
5924 menu.bounds.left(),
5925 menu.bounds.top() - actual_size.height - HOVER_POPOVER_GAP,
5926 ),
5927 // bottom of context menu
5928 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5929 ];
5930 possible_origins
5931 .into_iter()
5932 .find(|&origin| Bounds::new(origin, actual_size).is_contained_within(hitbox))
5933 });
5934 origin_surrounding_menu.unwrap_or_else(|| {
5935 // fallback to existing above/below cursor logic
5936 // this might overlap menu or overflow in rare case
5937 if popover_bounds_above.is_contained_within(hitbox) {
5938 popover_bounds_above.origin
5939 } else {
5940 popover_bounds_below.origin
5941 }
5942 })
5943 };
5944
5945 window.defer_draw(element, final_origin, 2);
5946 }
5947
5948 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5949 window.paint_layer(layout.hitbox.bounds, |window| {
5950 let scroll_top = layout.position_map.snapshot.scroll_position().y;
5951 let gutter_bg = cx.theme().colors().editor_gutter_background;
5952 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
5953 window.paint_quad(fill(
5954 layout.position_map.text_hitbox.bounds,
5955 self.style.background,
5956 ));
5957
5958 if matches!(
5959 layout.mode,
5960 EditorMode::Full { .. } | EditorMode::Minimap { .. }
5961 ) {
5962 let show_active_line_background = match layout.mode {
5963 EditorMode::Full {
5964 show_active_line_background,
5965 ..
5966 } => show_active_line_background,
5967 EditorMode::Minimap { .. } => true,
5968 _ => false,
5969 };
5970 let mut active_rows = layout.active_rows.iter().peekable();
5971 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
5972 let mut end_row = start_row.0;
5973 while active_rows
5974 .peek()
5975 .is_some_and(|(active_row, has_selection)| {
5976 active_row.0 == end_row + 1
5977 && has_selection.selection == contains_non_empty_selection.selection
5978 })
5979 {
5980 active_rows.next().unwrap();
5981 end_row += 1;
5982 }
5983
5984 if show_active_line_background && !contains_non_empty_selection.selection {
5985 let highlight_h_range =
5986 match layout.position_map.snapshot.current_line_highlight {
5987 CurrentLineHighlight::Gutter => Some(Range {
5988 start: layout.hitbox.left(),
5989 end: layout.gutter_hitbox.right(),
5990 }),
5991 CurrentLineHighlight::Line => Some(Range {
5992 start: layout.position_map.text_hitbox.bounds.left(),
5993 end: layout.position_map.text_hitbox.bounds.right(),
5994 }),
5995 CurrentLineHighlight::All => Some(Range {
5996 start: layout.hitbox.left(),
5997 end: layout.hitbox.right(),
5998 }),
5999 CurrentLineHighlight::None => None,
6000 };
6001 if let Some(range) = highlight_h_range {
6002 let active_line_bg = cx.theme().colors().editor_active_line_background;
6003 let bounds = Bounds {
6004 origin: point(
6005 range.start,
6006 layout.hitbox.origin.y
6007 + Pixels::from(
6008 (start_row.as_f64() - scroll_top)
6009 * ScrollPixelOffset::from(
6010 layout.position_map.line_height,
6011 ),
6012 ),
6013 ),
6014 size: size(
6015 range.end - range.start,
6016 layout.position_map.line_height
6017 * (end_row - start_row.0 + 1) as f32,
6018 ),
6019 };
6020 window.paint_quad(fill(bounds, active_line_bg));
6021 }
6022 }
6023 }
6024
6025 let mut paint_highlight = |highlight_row_start: DisplayRow,
6026 highlight_row_end: DisplayRow,
6027 highlight: crate::LineHighlight,
6028 edges| {
6029 let mut origin_x = layout.hitbox.left();
6030 let mut width = layout.hitbox.size.width;
6031 if !highlight.include_gutter {
6032 origin_x += layout.gutter_hitbox.size.width;
6033 width -= layout.gutter_hitbox.size.width;
6034 }
6035
6036 let origin = point(
6037 origin_x,
6038 layout.hitbox.origin.y
6039 + Pixels::from(
6040 (highlight_row_start.as_f64() - scroll_top)
6041 * ScrollPixelOffset::from(layout.position_map.line_height),
6042 ),
6043 );
6044 let size = size(
6045 width,
6046 layout.position_map.line_height
6047 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
6048 );
6049 let mut quad = fill(Bounds { origin, size }, highlight.background);
6050 if let Some(border_color) = highlight.border {
6051 quad.border_color = border_color;
6052 quad.border_widths = edges
6053 }
6054 window.paint_quad(quad);
6055 };
6056
6057 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
6058 None;
6059 for (&new_row, &new_background) in &layout.highlighted_rows {
6060 match &mut current_paint {
6061 &mut Some((current_background, ref mut current_range, mut edges)) => {
6062 let new_range_started = current_background != new_background
6063 || current_range.end.next_row() != new_row;
6064 if new_range_started {
6065 if current_range.end.next_row() == new_row {
6066 edges.bottom = px(0.);
6067 };
6068 paint_highlight(
6069 current_range.start,
6070 current_range.end,
6071 current_background,
6072 edges,
6073 );
6074 let edges = Edges {
6075 top: if current_range.end.next_row() != new_row {
6076 px(1.)
6077 } else {
6078 px(0.)
6079 },
6080 bottom: px(1.),
6081 ..Default::default()
6082 };
6083 current_paint = Some((new_background, new_row..new_row, edges));
6084 continue;
6085 } else {
6086 current_range.end = current_range.end.next_row();
6087 }
6088 }
6089 None => {
6090 let edges = Edges {
6091 top: px(1.),
6092 bottom: px(1.),
6093 ..Default::default()
6094 };
6095 current_paint = Some((new_background, new_row..new_row, edges))
6096 }
6097 };
6098 }
6099 if let Some((color, range, edges)) = current_paint {
6100 paint_highlight(range.start, range.end, color, edges);
6101 }
6102
6103 for (guide_x, active) in layout.wrap_guides.iter() {
6104 let color = if *active {
6105 cx.theme().colors().editor_active_wrap_guide
6106 } else {
6107 cx.theme().colors().editor_wrap_guide
6108 };
6109 window.paint_quad(fill(
6110 Bounds {
6111 origin: point(*guide_x, layout.position_map.text_hitbox.origin.y),
6112 size: size(px(1.), layout.position_map.text_hitbox.size.height),
6113 },
6114 color,
6115 ));
6116 }
6117 }
6118 })
6119 }
6120
6121 fn paint_indent_guides(
6122 &mut self,
6123 layout: &mut EditorLayout,
6124 window: &mut Window,
6125 cx: &mut App,
6126 ) {
6127 let Some(indent_guides) = &layout.indent_guides else {
6128 return;
6129 };
6130
6131 let faded_color = |color: Hsla, alpha: f32| {
6132 let mut faded = color;
6133 faded.a = alpha;
6134 faded
6135 };
6136
6137 for indent_guide in indent_guides {
6138 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
6139 let settings = &indent_guide.settings;
6140
6141 // TODO fixed for now, expose them through themes later
6142 const INDENT_AWARE_ALPHA: f32 = 0.2;
6143 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
6144 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
6145 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
6146
6147 let line_color = match (settings.coloring, indent_guide.active) {
6148 (IndentGuideColoring::Disabled, _) => None,
6149 (IndentGuideColoring::Fixed, false) => {
6150 Some(cx.theme().colors().editor_indent_guide)
6151 }
6152 (IndentGuideColoring::Fixed, true) => {
6153 Some(cx.theme().colors().editor_indent_guide_active)
6154 }
6155 (IndentGuideColoring::IndentAware, false) => {
6156 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
6157 }
6158 (IndentGuideColoring::IndentAware, true) => {
6159 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
6160 }
6161 };
6162
6163 let background_color = match (settings.background_coloring, indent_guide.active) {
6164 (IndentGuideBackgroundColoring::Disabled, _) => None,
6165 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
6166 indent_accent_colors,
6167 INDENT_AWARE_BACKGROUND_ALPHA,
6168 )),
6169 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
6170 indent_accent_colors,
6171 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
6172 )),
6173 };
6174
6175 let requested_line_width = if indent_guide.active {
6176 settings.active_line_width
6177 } else {
6178 settings.line_width
6179 }
6180 .clamp(1, 10);
6181 let mut line_indicator_width = 0.;
6182 if let Some(color) = line_color {
6183 window.paint_quad(fill(
6184 Bounds {
6185 origin: indent_guide.origin,
6186 size: size(px(requested_line_width as f32), indent_guide.length),
6187 },
6188 color,
6189 ));
6190 line_indicator_width = requested_line_width as f32;
6191 }
6192
6193 if let Some(color) = background_color {
6194 let width = indent_guide.single_indent_width - px(line_indicator_width);
6195 window.paint_quad(fill(
6196 Bounds {
6197 origin: point(
6198 indent_guide.origin.x + px(line_indicator_width),
6199 indent_guide.origin.y,
6200 ),
6201 size: size(width, indent_guide.length),
6202 },
6203 color,
6204 ));
6205 }
6206 }
6207 }
6208
6209 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6210 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
6211
6212 let line_height = layout.position_map.line_height;
6213 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
6214
6215 for line_layout in layout.line_numbers.values() {
6216 for LineNumberSegment {
6217 shaped_line,
6218 hitbox,
6219 } in &line_layout.segments
6220 {
6221 let Some(hitbox) = hitbox else {
6222 continue;
6223 };
6224
6225 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
6226 let color = cx.theme().colors().editor_hover_line_number;
6227
6228 let line = self.shape_line_number(shaped_line.text.clone(), color, window);
6229 line.paint(hitbox.origin, line_height, window, cx).log_err()
6230 } else {
6231 shaped_line
6232 .paint(hitbox.origin, line_height, window, cx)
6233 .log_err()
6234 }) else {
6235 continue;
6236 };
6237
6238 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
6239 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
6240 if is_singleton {
6241 window.set_cursor_style(CursorStyle::IBeam, hitbox);
6242 } else {
6243 window.set_cursor_style(CursorStyle::PointingHand, hitbox);
6244 }
6245 }
6246 }
6247 }
6248
6249 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6250 if layout.display_hunks.is_empty() {
6251 return;
6252 }
6253
6254 let line_height = layout.position_map.line_height;
6255 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6256 for (hunk, hitbox) in &layout.display_hunks {
6257 let hunk_to_paint = match hunk {
6258 DisplayDiffHunk::Folded { .. } => {
6259 let hunk_bounds = Self::diff_hunk_bounds(
6260 &layout.position_map.snapshot,
6261 line_height,
6262 layout.gutter_hitbox.bounds,
6263 hunk,
6264 );
6265 Some((
6266 hunk_bounds,
6267 cx.theme().colors().version_control_modified,
6268 Corners::all(px(0.)),
6269 DiffHunkStatus::modified_none(),
6270 ))
6271 }
6272 DisplayDiffHunk::Unfolded {
6273 status,
6274 display_row_range,
6275 ..
6276 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
6277 DiffHunkStatusKind::Added => (
6278 hunk_hitbox.bounds,
6279 cx.theme().colors().version_control_added,
6280 Corners::all(px(0.)),
6281 *status,
6282 ),
6283 DiffHunkStatusKind::Modified => (
6284 hunk_hitbox.bounds,
6285 cx.theme().colors().version_control_modified,
6286 Corners::all(px(0.)),
6287 *status,
6288 ),
6289 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
6290 hunk_hitbox.bounds,
6291 cx.theme().colors().version_control_deleted,
6292 Corners::all(px(0.)),
6293 *status,
6294 ),
6295 DiffHunkStatusKind::Deleted => (
6296 Bounds::new(
6297 point(
6298 hunk_hitbox.origin.x - hunk_hitbox.size.width,
6299 hunk_hitbox.origin.y,
6300 ),
6301 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
6302 ),
6303 cx.theme().colors().version_control_deleted,
6304 Corners::all(1. * line_height),
6305 *status,
6306 ),
6307 }),
6308 };
6309
6310 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
6311 // Flatten the background color with the editor color to prevent
6312 // elements below transparent hunks from showing through
6313 let flattened_background_color = cx
6314 .theme()
6315 .colors()
6316 .editor_background
6317 .blend(background_color);
6318
6319 if !Self::diff_hunk_hollow(status, cx) {
6320 window.paint_quad(quad(
6321 hunk_bounds,
6322 corner_radii,
6323 flattened_background_color,
6324 Edges::default(),
6325 transparent_black(),
6326 BorderStyle::default(),
6327 ));
6328 } else {
6329 let flattened_unstaged_background_color = cx
6330 .theme()
6331 .colors()
6332 .editor_background
6333 .blend(background_color.opacity(0.3));
6334
6335 window.paint_quad(quad(
6336 hunk_bounds,
6337 corner_radii,
6338 flattened_unstaged_background_color,
6339 Edges::all(px(1.0)),
6340 flattened_background_color,
6341 BorderStyle::Solid,
6342 ));
6343 }
6344 }
6345 }
6346 });
6347 }
6348
6349 fn gutter_strip_width(line_height: Pixels) -> Pixels {
6350 (0.275 * line_height).floor()
6351 }
6352
6353 fn diff_hunk_bounds(
6354 snapshot: &EditorSnapshot,
6355 line_height: Pixels,
6356 gutter_bounds: Bounds<Pixels>,
6357 hunk: &DisplayDiffHunk,
6358 ) -> Bounds<Pixels> {
6359 let scroll_position = snapshot.scroll_position();
6360 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
6361 let gutter_strip_width = Self::gutter_strip_width(line_height);
6362
6363 match hunk {
6364 DisplayDiffHunk::Folded { display_row, .. } => {
6365 let start_y = (display_row.as_f64() * ScrollPixelOffset::from(line_height)
6366 - scroll_top)
6367 .into();
6368 let end_y = start_y + line_height;
6369 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6370 let highlight_size = size(gutter_strip_width, end_y - start_y);
6371 Bounds::new(highlight_origin, highlight_size)
6372 }
6373 DisplayDiffHunk::Unfolded {
6374 display_row_range,
6375 status,
6376 ..
6377 } => {
6378 if status.is_deleted() && display_row_range.is_empty() {
6379 let row = display_row_range.start;
6380
6381 let offset = ScrollPixelOffset::from(line_height / 2.);
6382 let start_y =
6383 (row.as_f64() * ScrollPixelOffset::from(line_height) - offset - scroll_top)
6384 .into();
6385 let end_y = start_y + line_height;
6386
6387 let width = (0.35 * line_height).floor();
6388 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6389 let highlight_size = size(width, end_y - start_y);
6390 Bounds::new(highlight_origin, highlight_size)
6391 } else {
6392 let start_row = display_row_range.start;
6393 let end_row = display_row_range.end;
6394 // If we're in a multibuffer, row range span might include an
6395 // excerpt header, so if we were to draw the marker straight away,
6396 // the hunk might include the rows of that header.
6397 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
6398 // Instead, we simply check whether the range we're dealing with includes
6399 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
6400 let end_row_in_current_excerpt = snapshot
6401 .blocks_in_range(start_row..end_row)
6402 .find_map(|(start_row, block)| {
6403 if matches!(
6404 block,
6405 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
6406 ) {
6407 Some(start_row)
6408 } else {
6409 None
6410 }
6411 })
6412 .unwrap_or(end_row);
6413
6414 let start_y = (start_row.as_f64() * ScrollPixelOffset::from(line_height)
6415 - scroll_top)
6416 .into();
6417 let end_y = Pixels::from(
6418 end_row_in_current_excerpt.as_f64() * ScrollPixelOffset::from(line_height)
6419 - scroll_top,
6420 );
6421
6422 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6423 let highlight_size = size(gutter_strip_width, end_y - start_y);
6424 Bounds::new(highlight_origin, highlight_size)
6425 }
6426 }
6427 }
6428 }
6429
6430 fn paint_gutter_indicators(
6431 &self,
6432 layout: &mut EditorLayout,
6433 window: &mut Window,
6434 cx: &mut App,
6435 ) {
6436 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6437 window.with_element_namespace("crease_toggles", |window| {
6438 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
6439 crease_toggle.paint(window, cx);
6440 }
6441 });
6442
6443 window.with_element_namespace("expand_toggles", |window| {
6444 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
6445 expand_toggle.paint(window, cx);
6446 }
6447 });
6448
6449 for breakpoint in layout.breakpoints.iter_mut() {
6450 breakpoint.paint(window, cx);
6451 }
6452
6453 for test_indicator in layout.test_indicators.iter_mut() {
6454 test_indicator.paint(window, cx);
6455 }
6456 });
6457 }
6458
6459 fn paint_gutter_highlights(
6460 &self,
6461 layout: &mut EditorLayout,
6462 window: &mut Window,
6463 cx: &mut App,
6464 ) {
6465 for (_, hunk_hitbox) in &layout.display_hunks {
6466 if let Some(hunk_hitbox) = hunk_hitbox
6467 && !self
6468 .editor
6469 .read(cx)
6470 .buffer()
6471 .read(cx)
6472 .all_diff_hunks_expanded()
6473 {
6474 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
6475 }
6476 }
6477
6478 let show_git_gutter = layout
6479 .position_map
6480 .snapshot
6481 .show_git_diff_gutter
6482 .unwrap_or_else(|| {
6483 matches!(
6484 ProjectSettings::get_global(cx).git.git_gutter,
6485 GitGutterSetting::TrackedFiles
6486 )
6487 });
6488 if show_git_gutter {
6489 Self::paint_gutter_diff_hunks(layout, window, cx)
6490 }
6491
6492 let highlight_width = 0.275 * layout.position_map.line_height;
6493 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
6494 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6495 for (range, color) in &layout.highlighted_gutter_ranges {
6496 let start_row = if range.start.row() < layout.visible_display_row_range.start {
6497 layout.visible_display_row_range.start - DisplayRow(1)
6498 } else {
6499 range.start.row()
6500 };
6501 let end_row = if range.end.row() > layout.visible_display_row_range.end {
6502 layout.visible_display_row_range.end + DisplayRow(1)
6503 } else {
6504 range.end.row()
6505 };
6506
6507 let start_y = layout.gutter_hitbox.top()
6508 + Pixels::from(
6509 start_row.0 as f64
6510 * ScrollPixelOffset::from(layout.position_map.line_height)
6511 - layout.position_map.scroll_pixel_position.y,
6512 );
6513 let end_y = layout.gutter_hitbox.top()
6514 + Pixels::from(
6515 (end_row.0 + 1) as f64
6516 * ScrollPixelOffset::from(layout.position_map.line_height)
6517 - layout.position_map.scroll_pixel_position.y,
6518 );
6519 let bounds = Bounds::from_corners(
6520 point(layout.gutter_hitbox.left(), start_y),
6521 point(layout.gutter_hitbox.left() + highlight_width, end_y),
6522 );
6523 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
6524 }
6525 });
6526 }
6527
6528 fn paint_blamed_display_rows(
6529 &self,
6530 layout: &mut EditorLayout,
6531 window: &mut Window,
6532 cx: &mut App,
6533 ) {
6534 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
6535 return;
6536 };
6537
6538 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6539 for mut blame_element in blamed_display_rows.into_iter() {
6540 blame_element.paint(window, cx);
6541 }
6542 })
6543 }
6544
6545 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6546 window.with_content_mask(
6547 Some(ContentMask {
6548 bounds: layout.position_map.text_hitbox.bounds,
6549 }),
6550 |window| {
6551 let editor = self.editor.read(cx);
6552 if editor.mouse_cursor_hidden {
6553 window.set_window_cursor_style(CursorStyle::None);
6554 } else if let SelectionDragState::ReadyToDrag {
6555 mouse_down_time, ..
6556 } = &editor.selection_drag_state
6557 {
6558 let drag_and_drop_delay = Duration::from_millis(
6559 EditorSettings::get_global(cx)
6560 .drag_and_drop_selection
6561 .delay
6562 .0,
6563 );
6564 if mouse_down_time.elapsed() >= drag_and_drop_delay {
6565 window.set_cursor_style(
6566 CursorStyle::DragCopy,
6567 &layout.position_map.text_hitbox,
6568 );
6569 }
6570 } else if matches!(
6571 editor.selection_drag_state,
6572 SelectionDragState::Dragging { .. }
6573 ) {
6574 window
6575 .set_cursor_style(CursorStyle::DragCopy, &layout.position_map.text_hitbox);
6576 } else if editor
6577 .hovered_link_state
6578 .as_ref()
6579 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
6580 {
6581 window.set_cursor_style(
6582 CursorStyle::PointingHand,
6583 &layout.position_map.text_hitbox,
6584 );
6585 } else {
6586 window.set_cursor_style(CursorStyle::IBeam, &layout.position_map.text_hitbox);
6587 };
6588
6589 self.paint_lines_background(layout, window, cx);
6590 let invisible_display_ranges = self.paint_highlights(layout, window, cx);
6591 self.paint_document_colors(layout, window);
6592 self.paint_lines(&invisible_display_ranges, layout, window, cx);
6593 self.paint_redactions(layout, window);
6594 self.paint_cursors(layout, window, cx);
6595 self.paint_inline_diagnostics(layout, window, cx);
6596 self.paint_inline_blame(layout, window, cx);
6597 self.paint_inline_code_actions(layout, window, cx);
6598 self.paint_diff_hunk_controls(layout, window, cx);
6599 window.with_element_namespace("crease_trailers", |window| {
6600 for trailer in layout.crease_trailers.iter_mut().flatten() {
6601 trailer.element.paint(window, cx);
6602 }
6603 });
6604 },
6605 )
6606 }
6607
6608 fn paint_highlights(
6609 &mut self,
6610 layout: &mut EditorLayout,
6611 window: &mut Window,
6612 cx: &mut App,
6613 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
6614 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6615 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
6616 let line_end_overshoot = 0.15 * layout.position_map.line_height;
6617 for (range, color) in &layout.highlighted_ranges {
6618 self.paint_highlighted_range(
6619 range.clone(),
6620 true,
6621 *color,
6622 Pixels::ZERO,
6623 line_end_overshoot,
6624 layout,
6625 window,
6626 );
6627 }
6628
6629 let corner_radius = if EditorSettings::get_global(cx).rounded_selection {
6630 0.15 * layout.position_map.line_height
6631 } else {
6632 Pixels::ZERO
6633 };
6634
6635 for (player_color, selections) in &layout.selections {
6636 for selection in selections.iter() {
6637 self.paint_highlighted_range(
6638 selection.range.clone(),
6639 true,
6640 player_color.selection,
6641 corner_radius,
6642 corner_radius * 2.,
6643 layout,
6644 window,
6645 );
6646
6647 if selection.is_local && !selection.range.is_empty() {
6648 invisible_display_ranges.push(selection.range.clone());
6649 }
6650 }
6651 }
6652 invisible_display_ranges
6653 })
6654 }
6655
6656 fn paint_lines(
6657 &mut self,
6658 invisible_display_ranges: &[Range<DisplayPoint>],
6659 layout: &mut EditorLayout,
6660 window: &mut Window,
6661 cx: &mut App,
6662 ) {
6663 let whitespace_setting = self
6664 .editor
6665 .read(cx)
6666 .buffer
6667 .read(cx)
6668 .language_settings(cx)
6669 .show_whitespaces;
6670
6671 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6672 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6673 line_with_invisibles.draw(
6674 layout,
6675 row,
6676 layout.content_origin,
6677 whitespace_setting,
6678 invisible_display_ranges,
6679 window,
6680 cx,
6681 )
6682 }
6683
6684 for line_element in &mut layout.line_elements {
6685 line_element.paint(window, cx);
6686 }
6687 }
6688
6689 fn paint_sticky_headers(
6690 &mut self,
6691 layout: &mut EditorLayout,
6692 window: &mut Window,
6693 cx: &mut App,
6694 ) {
6695 let Some(mut sticky_headers) = layout.sticky_headers.take() else {
6696 return;
6697 };
6698
6699 if sticky_headers.lines.is_empty() {
6700 layout.sticky_headers = Some(sticky_headers);
6701 return;
6702 }
6703
6704 let whitespace_setting = self
6705 .editor
6706 .read(cx)
6707 .buffer
6708 .read(cx)
6709 .language_settings(cx)
6710 .show_whitespaces;
6711 sticky_headers.paint(layout, whitespace_setting, window, cx);
6712
6713 let sticky_header_hitboxes: Vec<Hitbox> = sticky_headers
6714 .lines
6715 .iter()
6716 .map(|line| line.hitbox.clone())
6717 .collect();
6718 let hovered_hitbox = sticky_header_hitboxes
6719 .iter()
6720 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6721
6722 window.on_mouse_event(move |_: &MouseMoveEvent, phase, window, _cx| {
6723 if !phase.bubble() {
6724 return;
6725 }
6726
6727 let current_hover = sticky_header_hitboxes
6728 .iter()
6729 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6730 if hovered_hitbox != current_hover {
6731 window.refresh();
6732 }
6733 });
6734
6735 for (line_index, line) in sticky_headers.lines.iter().enumerate() {
6736 let editor = self.editor.clone();
6737 let hitbox = line.hitbox.clone();
6738 let target_anchor = line.target_anchor;
6739 window.on_mouse_event(move |event: &MouseDownEvent, phase, window, cx| {
6740 if !phase.bubble() {
6741 return;
6742 }
6743
6744 if event.button == MouseButton::Left && hitbox.is_hovered(window) {
6745 editor.update(cx, |editor, cx| {
6746 editor.change_selections(
6747 SelectionEffects::scroll(Autoscroll::top_relative(line_index)),
6748 window,
6749 cx,
6750 |selections| selections.select_ranges([target_anchor..target_anchor]),
6751 );
6752 cx.stop_propagation();
6753 });
6754 }
6755 });
6756 }
6757
6758 let text_bounds = layout.position_map.text_hitbox.bounds;
6759 let border_top = text_bounds.top()
6760 + sticky_headers.lines.last().unwrap().offset
6761 + layout.position_map.line_height;
6762 let separator_height = px(1.);
6763 let border_bounds = Bounds::from_corners(
6764 point(layout.gutter_hitbox.bounds.left(), border_top),
6765 point(text_bounds.right(), border_top + separator_height),
6766 );
6767 window.paint_quad(fill(border_bounds, cx.theme().colors().border_variant));
6768
6769 layout.sticky_headers = Some(sticky_headers);
6770 }
6771
6772 fn paint_lines_background(
6773 &mut self,
6774 layout: &mut EditorLayout,
6775 window: &mut Window,
6776 cx: &mut App,
6777 ) {
6778 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6779 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6780 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
6781 }
6782 }
6783
6784 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
6785 if layout.redacted_ranges.is_empty() {
6786 return;
6787 }
6788
6789 let line_end_overshoot = layout.line_end_overshoot();
6790
6791 // A softer than perfect black
6792 let redaction_color = gpui::rgb(0x0e1111);
6793
6794 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6795 for range in layout.redacted_ranges.iter() {
6796 self.paint_highlighted_range(
6797 range.clone(),
6798 true,
6799 redaction_color.into(),
6800 Pixels::ZERO,
6801 line_end_overshoot,
6802 layout,
6803 window,
6804 );
6805 }
6806 });
6807 }
6808
6809 fn paint_document_colors(&self, layout: &mut EditorLayout, window: &mut Window) {
6810 let Some((colors_render_mode, image_colors)) = &layout.document_colors else {
6811 return;
6812 };
6813 if image_colors.is_empty()
6814 || colors_render_mode == &DocumentColorsRenderMode::None
6815 || colors_render_mode == &DocumentColorsRenderMode::Inlay
6816 {
6817 return;
6818 }
6819
6820 let line_end_overshoot = layout.line_end_overshoot();
6821
6822 for (range, color) in image_colors {
6823 match colors_render_mode {
6824 DocumentColorsRenderMode::Inlay | DocumentColorsRenderMode::None => return,
6825 DocumentColorsRenderMode::Background => {
6826 self.paint_highlighted_range(
6827 range.clone(),
6828 true,
6829 *color,
6830 Pixels::ZERO,
6831 line_end_overshoot,
6832 layout,
6833 window,
6834 );
6835 }
6836 DocumentColorsRenderMode::Border => {
6837 self.paint_highlighted_range(
6838 range.clone(),
6839 false,
6840 *color,
6841 Pixels::ZERO,
6842 line_end_overshoot,
6843 layout,
6844 window,
6845 );
6846 }
6847 }
6848 }
6849 }
6850
6851 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6852 for cursor in &mut layout.visible_cursors {
6853 cursor.paint(layout.content_origin, window, cx);
6854 }
6855 }
6856
6857 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6858 let Some(scrollbars_layout) = layout.scrollbars_layout.take() else {
6859 return;
6860 };
6861 let any_scrollbar_dragged = self.editor.read(cx).scroll_manager.any_scrollbar_dragged();
6862
6863 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
6864 let hitbox = &scrollbar_layout.hitbox;
6865 if scrollbars_layout.visible {
6866 let scrollbar_edges = match axis {
6867 ScrollbarAxis::Horizontal => Edges {
6868 top: Pixels::ZERO,
6869 right: Pixels::ZERO,
6870 bottom: Pixels::ZERO,
6871 left: Pixels::ZERO,
6872 },
6873 ScrollbarAxis::Vertical => Edges {
6874 top: Pixels::ZERO,
6875 right: Pixels::ZERO,
6876 bottom: Pixels::ZERO,
6877 left: ScrollbarLayout::BORDER_WIDTH,
6878 },
6879 };
6880
6881 window.paint_layer(hitbox.bounds, |window| {
6882 window.paint_quad(quad(
6883 hitbox.bounds,
6884 Corners::default(),
6885 cx.theme().colors().scrollbar_track_background,
6886 scrollbar_edges,
6887 cx.theme().colors().scrollbar_track_border,
6888 BorderStyle::Solid,
6889 ));
6890
6891 if axis == ScrollbarAxis::Vertical {
6892 let fast_markers =
6893 self.collect_fast_scrollbar_markers(layout, scrollbar_layout, cx);
6894 // Refresh slow scrollbar markers in the background. Below, we
6895 // paint whatever markers have already been computed.
6896 self.refresh_slow_scrollbar_markers(layout, scrollbar_layout, window, cx);
6897
6898 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
6899 for marker in markers.iter().chain(&fast_markers) {
6900 let mut marker = marker.clone();
6901 marker.bounds.origin += hitbox.origin;
6902 window.paint_quad(marker);
6903 }
6904 }
6905
6906 if let Some(thumb_bounds) = scrollbar_layout.thumb_bounds {
6907 let scrollbar_thumb_color = match scrollbar_layout.thumb_state {
6908 ScrollbarThumbState::Dragging => {
6909 cx.theme().colors().scrollbar_thumb_active_background
6910 }
6911 ScrollbarThumbState::Hovered => {
6912 cx.theme().colors().scrollbar_thumb_hover_background
6913 }
6914 ScrollbarThumbState::Idle => {
6915 cx.theme().colors().scrollbar_thumb_background
6916 }
6917 };
6918 window.paint_quad(quad(
6919 thumb_bounds,
6920 Corners::default(),
6921 scrollbar_thumb_color,
6922 scrollbar_edges,
6923 cx.theme().colors().scrollbar_thumb_border,
6924 BorderStyle::Solid,
6925 ));
6926
6927 if any_scrollbar_dragged {
6928 window.set_window_cursor_style(CursorStyle::Arrow);
6929 } else {
6930 window.set_cursor_style(CursorStyle::Arrow, hitbox);
6931 }
6932 }
6933 })
6934 }
6935 }
6936
6937 window.on_mouse_event({
6938 let editor = self.editor.clone();
6939 let scrollbars_layout = scrollbars_layout.clone();
6940
6941 let mut mouse_position = window.mouse_position();
6942 move |event: &MouseMoveEvent, phase, window, cx| {
6943 if phase == DispatchPhase::Capture {
6944 return;
6945 }
6946
6947 editor.update(cx, |editor, cx| {
6948 if let Some((scrollbar_layout, axis)) = event
6949 .pressed_button
6950 .filter(|button| *button == MouseButton::Left)
6951 .and(editor.scroll_manager.dragging_scrollbar_axis())
6952 .and_then(|axis| {
6953 scrollbars_layout
6954 .iter_scrollbars()
6955 .find(|(_, a)| *a == axis)
6956 })
6957 {
6958 let ScrollbarLayout {
6959 hitbox,
6960 text_unit_size,
6961 ..
6962 } = scrollbar_layout;
6963
6964 let old_position = mouse_position.along(axis);
6965 let new_position = event.position.along(axis);
6966 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
6967 .contains(&old_position)
6968 {
6969 let position = editor.scroll_position(cx).apply_along(axis, |p| {
6970 (p + ScrollOffset::from(
6971 (new_position - old_position) / *text_unit_size,
6972 ))
6973 .max(0.)
6974 });
6975 editor.set_scroll_position(position, window, cx);
6976 }
6977
6978 editor.scroll_manager.show_scrollbars(window, cx);
6979 cx.stop_propagation();
6980 } else if let Some((layout, axis)) = scrollbars_layout
6981 .get_hovered_axis(window)
6982 .filter(|_| !event.dragging())
6983 {
6984 if layout.thumb_hovered(&event.position) {
6985 editor
6986 .scroll_manager
6987 .set_hovered_scroll_thumb_axis(axis, cx);
6988 } else {
6989 editor.scroll_manager.reset_scrollbar_state(cx);
6990 }
6991
6992 editor.scroll_manager.show_scrollbars(window, cx);
6993 } else {
6994 editor.scroll_manager.reset_scrollbar_state(cx);
6995 }
6996
6997 mouse_position = event.position;
6998 })
6999 }
7000 });
7001
7002 if any_scrollbar_dragged {
7003 window.on_mouse_event({
7004 let editor = self.editor.clone();
7005 move |_: &MouseUpEvent, phase, window, cx| {
7006 if phase == DispatchPhase::Capture {
7007 return;
7008 }
7009
7010 editor.update(cx, |editor, cx| {
7011 if let Some((_, axis)) = scrollbars_layout.get_hovered_axis(window) {
7012 editor
7013 .scroll_manager
7014 .set_hovered_scroll_thumb_axis(axis, cx);
7015 } else {
7016 editor.scroll_manager.reset_scrollbar_state(cx);
7017 }
7018 cx.stop_propagation();
7019 });
7020 }
7021 });
7022 } else {
7023 window.on_mouse_event({
7024 let editor = self.editor.clone();
7025
7026 move |event: &MouseDownEvent, phase, window, cx| {
7027 if phase == DispatchPhase::Capture {
7028 return;
7029 }
7030 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
7031 else {
7032 return;
7033 };
7034
7035 let ScrollbarLayout {
7036 hitbox,
7037 visible_range,
7038 text_unit_size,
7039 thumb_bounds,
7040 ..
7041 } = scrollbar_layout;
7042
7043 let Some(thumb_bounds) = thumb_bounds else {
7044 return;
7045 };
7046
7047 editor.update(cx, |editor, cx| {
7048 editor
7049 .scroll_manager
7050 .set_dragged_scroll_thumb_axis(axis, cx);
7051
7052 let event_position = event.position.along(axis);
7053
7054 if event_position < thumb_bounds.origin.along(axis)
7055 || thumb_bounds.bottom_right().along(axis) < event_position
7056 {
7057 let center_position = ((event_position - hitbox.origin.along(axis))
7058 / *text_unit_size)
7059 .round() as u32;
7060 let start_position = center_position.saturating_sub(
7061 (visible_range.end - visible_range.start) as u32 / 2,
7062 );
7063
7064 let position = editor
7065 .scroll_position(cx)
7066 .apply_along(axis, |_| start_position as ScrollOffset);
7067
7068 editor.set_scroll_position(position, window, cx);
7069 } else {
7070 editor.scroll_manager.show_scrollbars(window, cx);
7071 }
7072
7073 cx.stop_propagation();
7074 });
7075 }
7076 });
7077 }
7078 }
7079
7080 fn collect_fast_scrollbar_markers(
7081 &self,
7082 layout: &EditorLayout,
7083 scrollbar_layout: &ScrollbarLayout,
7084 cx: &mut App,
7085 ) -> Vec<PaintQuad> {
7086 const LIMIT: usize = 100;
7087 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
7088 return vec![];
7089 }
7090 let cursor_ranges = layout
7091 .cursors
7092 .iter()
7093 .map(|(point, color)| ColoredRange {
7094 start: point.row(),
7095 end: point.row(),
7096 color: *color,
7097 })
7098 .collect_vec();
7099 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
7100 }
7101
7102 fn refresh_slow_scrollbar_markers(
7103 &self,
7104 layout: &EditorLayout,
7105 scrollbar_layout: &ScrollbarLayout,
7106 window: &mut Window,
7107 cx: &mut App,
7108 ) {
7109 self.editor.update(cx, |editor, cx| {
7110 if editor.buffer_kind(cx) != ItemBufferKind::Singleton
7111 || !editor
7112 .scrollbar_marker_state
7113 .should_refresh(scrollbar_layout.hitbox.size)
7114 {
7115 return;
7116 }
7117
7118 let scrollbar_layout = scrollbar_layout.clone();
7119 let background_highlights = editor.background_highlights.clone();
7120 let snapshot = layout.position_map.snapshot.clone();
7121 let theme = cx.theme().clone();
7122 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
7123
7124 editor.scrollbar_marker_state.dirty = false;
7125 editor.scrollbar_marker_state.pending_refresh =
7126 Some(cx.spawn_in(window, async move |editor, cx| {
7127 let scrollbar_size = scrollbar_layout.hitbox.size;
7128 let scrollbar_markers = cx
7129 .background_spawn(async move {
7130 let max_point = snapshot.display_snapshot.buffer_snapshot().max_point();
7131 let mut marker_quads = Vec::new();
7132 if scrollbar_settings.git_diff {
7133 let marker_row_ranges =
7134 snapshot.buffer_snapshot().diff_hunks().map(|hunk| {
7135 let start_display_row =
7136 MultiBufferPoint::new(hunk.row_range.start.0, 0)
7137 .to_display_point(&snapshot.display_snapshot)
7138 .row();
7139 let mut end_display_row =
7140 MultiBufferPoint::new(hunk.row_range.end.0, 0)
7141 .to_display_point(&snapshot.display_snapshot)
7142 .row();
7143 if end_display_row != start_display_row {
7144 end_display_row.0 -= 1;
7145 }
7146 let color = match &hunk.status().kind {
7147 DiffHunkStatusKind::Added => {
7148 theme.colors().version_control_added
7149 }
7150 DiffHunkStatusKind::Modified => {
7151 theme.colors().version_control_modified
7152 }
7153 DiffHunkStatusKind::Deleted => {
7154 theme.colors().version_control_deleted
7155 }
7156 };
7157 ColoredRange {
7158 start: start_display_row,
7159 end: end_display_row,
7160 color,
7161 }
7162 });
7163
7164 marker_quads.extend(
7165 scrollbar_layout
7166 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
7167 );
7168 }
7169
7170 for (background_highlight_id, (_, background_ranges)) in
7171 background_highlights.iter()
7172 {
7173 let is_search_highlights = *background_highlight_id
7174 == HighlightKey::Type(TypeId::of::<BufferSearchHighlights>());
7175 let is_text_highlights = *background_highlight_id
7176 == HighlightKey::Type(TypeId::of::<SelectedTextHighlight>());
7177 let is_symbol_occurrences = *background_highlight_id
7178 == HighlightKey::Type(TypeId::of::<DocumentHighlightRead>())
7179 || *background_highlight_id
7180 == HighlightKey::Type(
7181 TypeId::of::<DocumentHighlightWrite>(),
7182 );
7183 if (is_search_highlights && scrollbar_settings.search_results)
7184 || (is_text_highlights && scrollbar_settings.selected_text)
7185 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
7186 {
7187 let mut color = theme.status().info;
7188 if is_symbol_occurrences {
7189 color.fade_out(0.5);
7190 }
7191 let marker_row_ranges = background_ranges.iter().map(|range| {
7192 let display_start = range
7193 .start
7194 .to_display_point(&snapshot.display_snapshot);
7195 let display_end =
7196 range.end.to_display_point(&snapshot.display_snapshot);
7197 ColoredRange {
7198 start: display_start.row(),
7199 end: display_end.row(),
7200 color,
7201 }
7202 });
7203 marker_quads.extend(
7204 scrollbar_layout
7205 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
7206 );
7207 }
7208 }
7209
7210 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
7211 let diagnostics = snapshot
7212 .buffer_snapshot()
7213 .diagnostics_in_range::<Point>(Point::zero()..max_point)
7214 // Don't show diagnostics the user doesn't care about
7215 .filter(|diagnostic| {
7216 match (
7217 scrollbar_settings.diagnostics,
7218 diagnostic.diagnostic.severity,
7219 ) {
7220 (ScrollbarDiagnostics::All, _) => true,
7221 (
7222 ScrollbarDiagnostics::Error,
7223 lsp::DiagnosticSeverity::ERROR,
7224 ) => true,
7225 (
7226 ScrollbarDiagnostics::Warning,
7227 lsp::DiagnosticSeverity::ERROR
7228 | lsp::DiagnosticSeverity::WARNING,
7229 ) => true,
7230 (
7231 ScrollbarDiagnostics::Information,
7232 lsp::DiagnosticSeverity::ERROR
7233 | lsp::DiagnosticSeverity::WARNING
7234 | lsp::DiagnosticSeverity::INFORMATION,
7235 ) => true,
7236 (_, _) => false,
7237 }
7238 })
7239 // We want to sort by severity, in order to paint the most severe diagnostics last.
7240 .sorted_by_key(|diagnostic| {
7241 std::cmp::Reverse(diagnostic.diagnostic.severity)
7242 });
7243
7244 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
7245 let start_display = diagnostic
7246 .range
7247 .start
7248 .to_display_point(&snapshot.display_snapshot);
7249 let end_display = diagnostic
7250 .range
7251 .end
7252 .to_display_point(&snapshot.display_snapshot);
7253 let color = match diagnostic.diagnostic.severity {
7254 lsp::DiagnosticSeverity::ERROR => theme.status().error,
7255 lsp::DiagnosticSeverity::WARNING => theme.status().warning,
7256 lsp::DiagnosticSeverity::INFORMATION => theme.status().info,
7257 _ => theme.status().hint,
7258 };
7259 ColoredRange {
7260 start: start_display.row(),
7261 end: end_display.row(),
7262 color,
7263 }
7264 });
7265 marker_quads.extend(
7266 scrollbar_layout
7267 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
7268 );
7269 }
7270
7271 Arc::from(marker_quads)
7272 })
7273 .await;
7274
7275 editor.update(cx, |editor, cx| {
7276 editor.scrollbar_marker_state.markers = scrollbar_markers;
7277 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
7278 editor.scrollbar_marker_state.pending_refresh = None;
7279 cx.notify();
7280 })?;
7281
7282 Ok(())
7283 }));
7284 });
7285 }
7286
7287 fn paint_highlighted_range(
7288 &self,
7289 range: Range<DisplayPoint>,
7290 fill: bool,
7291 color: Hsla,
7292 corner_radius: Pixels,
7293 line_end_overshoot: Pixels,
7294 layout: &EditorLayout,
7295 window: &mut Window,
7296 ) {
7297 let start_row = layout.visible_display_row_range.start;
7298 let end_row = layout.visible_display_row_range.end;
7299 if range.start != range.end {
7300 let row_range = if range.end.column() == 0 {
7301 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
7302 } else {
7303 cmp::max(range.start.row(), start_row)
7304 ..cmp::min(range.end.row().next_row(), end_row)
7305 };
7306
7307 let highlighted_range = HighlightedRange {
7308 color,
7309 line_height: layout.position_map.line_height,
7310 corner_radius,
7311 start_y: layout.content_origin.y
7312 + Pixels::from(
7313 (row_range.start.as_f64() - layout.position_map.scroll_position.y)
7314 * ScrollOffset::from(layout.position_map.line_height),
7315 ),
7316 lines: row_range
7317 .iter_rows()
7318 .map(|row| {
7319 let line_layout =
7320 &layout.position_map.line_layouts[row.minus(start_row) as usize];
7321 HighlightedRangeLine {
7322 start_x: if row == range.start.row() {
7323 layout.content_origin.x
7324 + Pixels::from(
7325 ScrollPixelOffset::from(
7326 line_layout.x_for_index(range.start.column() as usize),
7327 ) - layout.position_map.scroll_pixel_position.x,
7328 )
7329 } else {
7330 layout.content_origin.x
7331 - Pixels::from(layout.position_map.scroll_pixel_position.x)
7332 },
7333 end_x: if row == range.end.row() {
7334 layout.content_origin.x
7335 + Pixels::from(
7336 ScrollPixelOffset::from(
7337 line_layout.x_for_index(range.end.column() as usize),
7338 ) - layout.position_map.scroll_pixel_position.x,
7339 )
7340 } else {
7341 Pixels::from(
7342 ScrollPixelOffset::from(
7343 layout.content_origin.x
7344 + line_layout.width
7345 + line_end_overshoot,
7346 ) - layout.position_map.scroll_pixel_position.x,
7347 )
7348 },
7349 }
7350 })
7351 .collect(),
7352 };
7353
7354 highlighted_range.paint(fill, layout.position_map.text_hitbox.bounds, window);
7355 }
7356 }
7357
7358 fn paint_inline_diagnostics(
7359 &mut self,
7360 layout: &mut EditorLayout,
7361 window: &mut Window,
7362 cx: &mut App,
7363 ) {
7364 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
7365 inline_diagnostic.1.paint(window, cx);
7366 }
7367 }
7368
7369 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7370 if let Some(mut blame_layout) = layout.inline_blame_layout.take() {
7371 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7372 blame_layout.element.paint(window, cx);
7373 })
7374 }
7375 }
7376
7377 fn paint_inline_code_actions(
7378 &mut self,
7379 layout: &mut EditorLayout,
7380 window: &mut Window,
7381 cx: &mut App,
7382 ) {
7383 if let Some(mut inline_code_actions) = layout.inline_code_actions.take() {
7384 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7385 inline_code_actions.paint(window, cx);
7386 })
7387 }
7388 }
7389
7390 fn paint_diff_hunk_controls(
7391 &mut self,
7392 layout: &mut EditorLayout,
7393 window: &mut Window,
7394 cx: &mut App,
7395 ) {
7396 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
7397 diff_hunk_control.paint(window, cx);
7398 }
7399 }
7400
7401 fn paint_minimap(&self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7402 if let Some(mut layout) = layout.minimap.take() {
7403 let minimap_hitbox = layout.thumb_layout.hitbox.clone();
7404 let dragging_minimap = self.editor.read(cx).scroll_manager.is_dragging_minimap();
7405
7406 window.paint_layer(layout.thumb_layout.hitbox.bounds, |window| {
7407 window.with_element_namespace("minimap", |window| {
7408 layout.minimap.paint(window, cx);
7409 if let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds {
7410 let minimap_thumb_color = match layout.thumb_layout.thumb_state {
7411 ScrollbarThumbState::Idle => {
7412 cx.theme().colors().minimap_thumb_background
7413 }
7414 ScrollbarThumbState::Hovered => {
7415 cx.theme().colors().minimap_thumb_hover_background
7416 }
7417 ScrollbarThumbState::Dragging => {
7418 cx.theme().colors().minimap_thumb_active_background
7419 }
7420 };
7421 let minimap_thumb_border = match layout.thumb_border_style {
7422 MinimapThumbBorder::Full => Edges::all(ScrollbarLayout::BORDER_WIDTH),
7423 MinimapThumbBorder::LeftOnly => Edges {
7424 left: ScrollbarLayout::BORDER_WIDTH,
7425 ..Default::default()
7426 },
7427 MinimapThumbBorder::LeftOpen => Edges {
7428 right: ScrollbarLayout::BORDER_WIDTH,
7429 top: ScrollbarLayout::BORDER_WIDTH,
7430 bottom: ScrollbarLayout::BORDER_WIDTH,
7431 ..Default::default()
7432 },
7433 MinimapThumbBorder::RightOpen => Edges {
7434 left: ScrollbarLayout::BORDER_WIDTH,
7435 top: ScrollbarLayout::BORDER_WIDTH,
7436 bottom: ScrollbarLayout::BORDER_WIDTH,
7437 ..Default::default()
7438 },
7439 MinimapThumbBorder::None => Default::default(),
7440 };
7441
7442 window.paint_layer(minimap_hitbox.bounds, |window| {
7443 window.paint_quad(quad(
7444 thumb_bounds,
7445 Corners::default(),
7446 minimap_thumb_color,
7447 minimap_thumb_border,
7448 cx.theme().colors().minimap_thumb_border,
7449 BorderStyle::Solid,
7450 ));
7451 });
7452 }
7453 });
7454 });
7455
7456 if dragging_minimap {
7457 window.set_window_cursor_style(CursorStyle::Arrow);
7458 } else {
7459 window.set_cursor_style(CursorStyle::Arrow, &minimap_hitbox);
7460 }
7461
7462 let minimap_axis = ScrollbarAxis::Vertical;
7463 let pixels_per_line = Pixels::from(
7464 ScrollPixelOffset::from(minimap_hitbox.size.height) / layout.max_scroll_top,
7465 )
7466 .min(layout.minimap_line_height);
7467
7468 let mut mouse_position = window.mouse_position();
7469
7470 window.on_mouse_event({
7471 let editor = self.editor.clone();
7472
7473 let minimap_hitbox = minimap_hitbox.clone();
7474
7475 move |event: &MouseMoveEvent, phase, window, cx| {
7476 if phase == DispatchPhase::Capture {
7477 return;
7478 }
7479
7480 editor.update(cx, |editor, cx| {
7481 if event.pressed_button == Some(MouseButton::Left)
7482 && editor.scroll_manager.is_dragging_minimap()
7483 {
7484 let old_position = mouse_position.along(minimap_axis);
7485 let new_position = event.position.along(minimap_axis);
7486 if (minimap_hitbox.origin.along(minimap_axis)
7487 ..minimap_hitbox.bottom_right().along(minimap_axis))
7488 .contains(&old_position)
7489 {
7490 let position =
7491 editor.scroll_position(cx).apply_along(minimap_axis, |p| {
7492 (p + ScrollPixelOffset::from(
7493 (new_position - old_position) / pixels_per_line,
7494 ))
7495 .max(0.)
7496 });
7497
7498 editor.set_scroll_position(position, window, cx);
7499 }
7500 cx.stop_propagation();
7501 } else if minimap_hitbox.is_hovered(window) {
7502 editor.scroll_manager.set_is_hovering_minimap_thumb(
7503 !event.dragging()
7504 && layout
7505 .thumb_layout
7506 .thumb_bounds
7507 .is_some_and(|bounds| bounds.contains(&event.position)),
7508 cx,
7509 );
7510
7511 // Stop hover events from propagating to the
7512 // underlying editor if the minimap hitbox is hovered
7513 if !event.dragging() {
7514 cx.stop_propagation();
7515 }
7516 } else {
7517 editor.scroll_manager.hide_minimap_thumb(cx);
7518 }
7519 mouse_position = event.position;
7520 });
7521 }
7522 });
7523
7524 if dragging_minimap {
7525 window.on_mouse_event({
7526 let editor = self.editor.clone();
7527 move |event: &MouseUpEvent, phase, window, cx| {
7528 if phase == DispatchPhase::Capture {
7529 return;
7530 }
7531
7532 editor.update(cx, |editor, cx| {
7533 if minimap_hitbox.is_hovered(window) {
7534 editor.scroll_manager.set_is_hovering_minimap_thumb(
7535 layout
7536 .thumb_layout
7537 .thumb_bounds
7538 .is_some_and(|bounds| bounds.contains(&event.position)),
7539 cx,
7540 );
7541 } else {
7542 editor.scroll_manager.hide_minimap_thumb(cx);
7543 }
7544 cx.stop_propagation();
7545 });
7546 }
7547 });
7548 } else {
7549 window.on_mouse_event({
7550 let editor = self.editor.clone();
7551
7552 move |event: &MouseDownEvent, phase, window, cx| {
7553 if phase == DispatchPhase::Capture || !minimap_hitbox.is_hovered(window) {
7554 return;
7555 }
7556
7557 let event_position = event.position;
7558
7559 let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds else {
7560 return;
7561 };
7562
7563 editor.update(cx, |editor, cx| {
7564 if !thumb_bounds.contains(&event_position) {
7565 let click_position =
7566 event_position.relative_to(&minimap_hitbox.origin).y;
7567
7568 let top_position = (click_position
7569 - thumb_bounds.size.along(minimap_axis) / 2.0)
7570 .max(Pixels::ZERO);
7571
7572 let scroll_offset = (layout.minimap_scroll_top
7573 + ScrollPixelOffset::from(
7574 top_position / layout.minimap_line_height,
7575 ))
7576 .min(layout.max_scroll_top);
7577
7578 let scroll_position = editor
7579 .scroll_position(cx)
7580 .apply_along(minimap_axis, |_| scroll_offset);
7581 editor.set_scroll_position(scroll_position, window, cx);
7582 }
7583
7584 editor.scroll_manager.set_is_dragging_minimap(cx);
7585 cx.stop_propagation();
7586 });
7587 }
7588 });
7589 }
7590 }
7591 }
7592
7593 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7594 for mut block in layout.blocks.drain(..) {
7595 if block.overlaps_gutter {
7596 block.element.paint(window, cx);
7597 } else {
7598 let mut bounds = layout.hitbox.bounds;
7599 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
7600 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7601 block.element.paint(window, cx);
7602 })
7603 }
7604 }
7605 }
7606
7607 fn paint_edit_prediction_popover(
7608 &mut self,
7609 layout: &mut EditorLayout,
7610 window: &mut Window,
7611 cx: &mut App,
7612 ) {
7613 if let Some(edit_prediction_popover) = layout.edit_prediction_popover.as_mut() {
7614 edit_prediction_popover.paint(window, cx);
7615 }
7616 }
7617
7618 fn paint_mouse_context_menu(
7619 &mut self,
7620 layout: &mut EditorLayout,
7621 window: &mut Window,
7622 cx: &mut App,
7623 ) {
7624 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
7625 mouse_context_menu.paint(window, cx);
7626 }
7627 }
7628
7629 fn paint_scroll_wheel_listener(
7630 &mut self,
7631 layout: &EditorLayout,
7632 window: &mut Window,
7633 cx: &mut App,
7634 ) {
7635 window.on_mouse_event({
7636 let position_map = layout.position_map.clone();
7637 let editor = self.editor.clone();
7638 let hitbox = layout.hitbox.clone();
7639 let mut delta = ScrollDelta::default();
7640
7641 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
7642 // accidentally turn off their scrolling.
7643 let base_scroll_sensitivity =
7644 EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
7645
7646 // Use a minimum fast_scroll_sensitivity for same reason above
7647 let fast_scroll_sensitivity = EditorSettings::get_global(cx)
7648 .fast_scroll_sensitivity
7649 .max(0.01);
7650
7651 move |event: &ScrollWheelEvent, phase, window, cx| {
7652 let scroll_sensitivity = {
7653 if event.modifiers.alt {
7654 fast_scroll_sensitivity
7655 } else {
7656 base_scroll_sensitivity
7657 }
7658 };
7659
7660 if phase == DispatchPhase::Bubble && hitbox.should_handle_scroll(window) {
7661 delta = delta.coalesce(event.delta);
7662 editor.update(cx, |editor, cx| {
7663 let position_map: &PositionMap = &position_map;
7664
7665 let line_height = position_map.line_height;
7666 let max_glyph_advance = position_map.em_advance;
7667 let (delta, axis) = match delta {
7668 gpui::ScrollDelta::Pixels(mut pixels) => {
7669 //Trackpad
7670 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
7671 (pixels, axis)
7672 }
7673
7674 gpui::ScrollDelta::Lines(lines) => {
7675 //Not trackpad
7676 let pixels =
7677 point(lines.x * max_glyph_advance, lines.y * line_height);
7678 (pixels, None)
7679 }
7680 };
7681
7682 let current_scroll_position = position_map.snapshot.scroll_position();
7683 let x = (current_scroll_position.x
7684 * ScrollPixelOffset::from(max_glyph_advance)
7685 - ScrollPixelOffset::from(delta.x * scroll_sensitivity))
7686 / ScrollPixelOffset::from(max_glyph_advance);
7687 let y = (current_scroll_position.y * ScrollPixelOffset::from(line_height)
7688 - ScrollPixelOffset::from(delta.y * scroll_sensitivity))
7689 / ScrollPixelOffset::from(line_height);
7690 let mut scroll_position =
7691 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
7692 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
7693 if forbid_vertical_scroll {
7694 scroll_position.y = current_scroll_position.y;
7695 }
7696
7697 if scroll_position != current_scroll_position {
7698 editor.scroll(scroll_position, axis, window, cx);
7699 cx.stop_propagation();
7700 } else if y < 0. {
7701 // Due to clamping, we may fail to detect cases of overscroll to the top;
7702 // We want the scroll manager to get an update in such cases and detect the change of direction
7703 // on the next frame.
7704 cx.notify();
7705 }
7706 });
7707 }
7708 }
7709 });
7710 }
7711
7712 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
7713 if layout.mode.is_minimap() {
7714 return;
7715 }
7716
7717 self.paint_scroll_wheel_listener(layout, window, cx);
7718
7719 window.on_mouse_event({
7720 let position_map = layout.position_map.clone();
7721 let editor = self.editor.clone();
7722 let line_numbers = layout.line_numbers.clone();
7723
7724 move |event: &MouseDownEvent, phase, window, cx| {
7725 if phase == DispatchPhase::Bubble {
7726 match event.button {
7727 MouseButton::Left => editor.update(cx, |editor, cx| {
7728 let pending_mouse_down = editor
7729 .pending_mouse_down
7730 .get_or_insert_with(Default::default)
7731 .clone();
7732
7733 *pending_mouse_down.borrow_mut() = Some(event.clone());
7734
7735 Self::mouse_left_down(
7736 editor,
7737 event,
7738 &position_map,
7739 line_numbers.as_ref(),
7740 window,
7741 cx,
7742 );
7743 }),
7744 MouseButton::Right => editor.update(cx, |editor, cx| {
7745 Self::mouse_right_down(editor, event, &position_map, window, cx);
7746 }),
7747 MouseButton::Middle => editor.update(cx, |editor, cx| {
7748 Self::mouse_middle_down(editor, event, &position_map, window, cx);
7749 }),
7750 _ => {}
7751 };
7752 }
7753 }
7754 });
7755
7756 window.on_mouse_event({
7757 let editor = self.editor.clone();
7758 let position_map = layout.position_map.clone();
7759
7760 move |event: &MouseUpEvent, phase, window, cx| {
7761 if phase == DispatchPhase::Bubble {
7762 editor.update(cx, |editor, cx| {
7763 Self::mouse_up(editor, event, &position_map, window, cx)
7764 });
7765 }
7766 }
7767 });
7768
7769 window.on_mouse_event({
7770 let editor = self.editor.clone();
7771 let position_map = layout.position_map.clone();
7772 let mut captured_mouse_down = None;
7773
7774 move |event: &MouseUpEvent, phase, window, cx| match phase {
7775 // Clear the pending mouse down during the capture phase,
7776 // so that it happens even if another event handler stops
7777 // propagation.
7778 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
7779 let pending_mouse_down = editor
7780 .pending_mouse_down
7781 .get_or_insert_with(Default::default)
7782 .clone();
7783
7784 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
7785 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
7786 captured_mouse_down = pending_mouse_down.take();
7787 window.refresh();
7788 }
7789 }),
7790 // Fire click handlers during the bubble phase.
7791 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
7792 if let Some(mouse_down) = captured_mouse_down.take() {
7793 let event = ClickEvent::Mouse(MouseClickEvent {
7794 down: mouse_down,
7795 up: event.clone(),
7796 });
7797 Self::click(editor, &event, &position_map, window, cx);
7798 }
7799 }),
7800 }
7801 });
7802
7803 window.on_mouse_event({
7804 let position_map = layout.position_map.clone();
7805 let editor = self.editor.clone();
7806
7807 move |event: &MousePressureEvent, phase, window, cx| {
7808 if phase == DispatchPhase::Bubble {
7809 editor.update(cx, |editor, cx| {
7810 Self::pressure_click(editor, &event, &position_map, window, cx);
7811 })
7812 }
7813 }
7814 });
7815
7816 window.on_mouse_event({
7817 let position_map = layout.position_map.clone();
7818 let editor = self.editor.clone();
7819
7820 move |event: &MouseMoveEvent, phase, window, cx| {
7821 if phase == DispatchPhase::Bubble {
7822 editor.update(cx, |editor, cx| {
7823 if editor.hover_state.focused(window, cx) {
7824 return;
7825 }
7826 if event.pressed_button == Some(MouseButton::Left)
7827 || event.pressed_button == Some(MouseButton::Middle)
7828 {
7829 Self::mouse_dragged(editor, event, &position_map, window, cx)
7830 }
7831
7832 Self::mouse_moved(editor, event, &position_map, window, cx)
7833 });
7834 }
7835 }
7836 });
7837 }
7838
7839 fn shape_line_number(
7840 &self,
7841 text: SharedString,
7842 color: Hsla,
7843 window: &mut Window,
7844 ) -> ShapedLine {
7845 let run = TextRun {
7846 len: text.len(),
7847 font: self.style.text.font(),
7848 color,
7849 ..Default::default()
7850 };
7851 window.text_system().shape_line(
7852 text,
7853 self.style.text.font_size.to_pixels(window.rem_size()),
7854 &[run],
7855 None,
7856 )
7857 }
7858
7859 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
7860 let unstaged = status.has_secondary_hunk();
7861 let unstaged_hollow = matches!(
7862 ProjectSettings::get_global(cx).git.hunk_style,
7863 GitHunkStyleSetting::UnstagedHollow
7864 );
7865
7866 unstaged == unstaged_hollow
7867 }
7868
7869 #[cfg(debug_assertions)]
7870 fn layout_debug_ranges(
7871 selections: &mut Vec<(PlayerColor, Vec<SelectionLayout>)>,
7872 anchor_range: Range<Anchor>,
7873 display_snapshot: &DisplaySnapshot,
7874 cx: &App,
7875 ) {
7876 let theme = cx.theme();
7877 text::debug::GlobalDebugRanges::with_locked(|debug_ranges| {
7878 if debug_ranges.ranges.is_empty() {
7879 return;
7880 }
7881 let buffer_snapshot = &display_snapshot.buffer_snapshot();
7882 for (buffer, buffer_range, excerpt_id) in
7883 buffer_snapshot.range_to_buffer_ranges(anchor_range)
7884 {
7885 let buffer_range =
7886 buffer.anchor_after(buffer_range.start)..buffer.anchor_before(buffer_range.end);
7887 selections.extend(debug_ranges.ranges.iter().flat_map(|debug_range| {
7888 let player_color = theme
7889 .players()
7890 .color_for_participant(debug_range.occurrence_index as u32 + 1);
7891 debug_range.ranges.iter().filter_map(move |range| {
7892 if range.start.buffer_id != Some(buffer.remote_id()) {
7893 return None;
7894 }
7895 let clipped_start = range.start.max(&buffer_range.start, buffer);
7896 let clipped_end = range.end.min(&buffer_range.end, buffer);
7897 let range = buffer_snapshot
7898 .anchor_range_in_excerpt(excerpt_id, *clipped_start..*clipped_end)?;
7899 let start = range.start.to_display_point(display_snapshot);
7900 let end = range.end.to_display_point(display_snapshot);
7901 let selection_layout = SelectionLayout {
7902 head: start,
7903 range: start..end,
7904 cursor_shape: CursorShape::Bar,
7905 is_newest: false,
7906 is_local: false,
7907 active_rows: start.row()..end.row(),
7908 user_name: Some(SharedString::new(debug_range.value.clone())),
7909 };
7910 Some((player_color, vec![selection_layout]))
7911 })
7912 }));
7913 }
7914 });
7915 }
7916}
7917
7918fn file_status_label_color(file_status: Option<FileStatus>) -> Color {
7919 file_status.map_or(Color::Default, |status| {
7920 if status.is_conflicted() {
7921 Color::Conflict
7922 } else if status.is_modified() {
7923 Color::Modified
7924 } else if status.is_deleted() {
7925 Color::Disabled
7926 } else if status.is_created() {
7927 Color::Created
7928 } else {
7929 Color::Default
7930 }
7931 })
7932}
7933
7934fn header_jump_data(
7935 editor_snapshot: &EditorSnapshot,
7936 block_row_start: DisplayRow,
7937 height: u32,
7938 first_excerpt: &ExcerptInfo,
7939 latest_selection_anchors: &HashMap<BufferId, Anchor>,
7940) -> JumpData {
7941 let jump_target = if let Some(anchor) = latest_selection_anchors.get(&first_excerpt.buffer_id)
7942 && let Some(range) = editor_snapshot.context_range_for_excerpt(anchor.excerpt_id)
7943 && let Some(buffer) = editor_snapshot
7944 .buffer_snapshot()
7945 .buffer_for_excerpt(anchor.excerpt_id)
7946 {
7947 JumpTargetInExcerptInput {
7948 id: anchor.excerpt_id,
7949 buffer,
7950 excerpt_start_anchor: range.start,
7951 jump_anchor: anchor.text_anchor,
7952 }
7953 } else {
7954 JumpTargetInExcerptInput {
7955 id: first_excerpt.id,
7956 buffer: &first_excerpt.buffer,
7957 excerpt_start_anchor: first_excerpt.range.context.start,
7958 jump_anchor: first_excerpt.range.primary.start,
7959 }
7960 };
7961 header_jump_data_inner(editor_snapshot, block_row_start, height, &jump_target)
7962}
7963
7964struct JumpTargetInExcerptInput<'a> {
7965 id: ExcerptId,
7966 buffer: &'a language::BufferSnapshot,
7967 excerpt_start_anchor: text::Anchor,
7968 jump_anchor: text::Anchor,
7969}
7970
7971fn header_jump_data_inner(
7972 snapshot: &EditorSnapshot,
7973 block_row_start: DisplayRow,
7974 height: u32,
7975 for_excerpt: &JumpTargetInExcerptInput,
7976) -> JumpData {
7977 let buffer = &for_excerpt.buffer;
7978 let jump_position = language::ToPoint::to_point(&for_excerpt.jump_anchor, buffer);
7979 let excerpt_start = for_excerpt.excerpt_start_anchor;
7980 let rows_from_excerpt_start = if for_excerpt.jump_anchor == excerpt_start {
7981 0
7982 } else {
7983 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
7984 jump_position.row.saturating_sub(excerpt_start_point.row)
7985 };
7986
7987 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
7988 .saturating_sub(
7989 snapshot
7990 .scroll_anchor
7991 .scroll_position(&snapshot.display_snapshot)
7992 .y as u32,
7993 );
7994
7995 JumpData::MultiBufferPoint {
7996 excerpt_id: for_excerpt.id,
7997 anchor: for_excerpt.jump_anchor,
7998 position: jump_position,
7999 line_offset_from_top,
8000 }
8001}
8002
8003pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
8004
8005impl AcceptEditPredictionBinding {
8006 pub fn keystroke(&self) -> Option<&KeybindingKeystroke> {
8007 if let Some(binding) = self.0.as_ref() {
8008 match &binding.keystrokes() {
8009 [keystroke, ..] => Some(keystroke),
8010 _ => None,
8011 }
8012 } else {
8013 None
8014 }
8015 }
8016}
8017
8018fn prepaint_gutter_button(
8019 button: IconButton,
8020 row: DisplayRow,
8021 line_height: Pixels,
8022 gutter_dimensions: &GutterDimensions,
8023 scroll_position: gpui::Point<ScrollOffset>,
8024 gutter_hitbox: &Hitbox,
8025 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
8026 window: &mut Window,
8027 cx: &mut App,
8028) -> AnyElement {
8029 let mut button = button.into_any_element();
8030
8031 let available_space = size(
8032 AvailableSpace::MinContent,
8033 AvailableSpace::Definite(line_height),
8034 );
8035 let indicator_size = button.layout_as_root(available_space, window, cx);
8036
8037 let blame_width = gutter_dimensions.git_blame_entries_width;
8038 let gutter_width = display_hunks
8039 .binary_search_by(|(hunk, _)| match hunk {
8040 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
8041 DisplayDiffHunk::Unfolded {
8042 display_row_range, ..
8043 } => {
8044 if display_row_range.end <= row {
8045 Ordering::Less
8046 } else if display_row_range.start > row {
8047 Ordering::Greater
8048 } else {
8049 Ordering::Equal
8050 }
8051 }
8052 })
8053 .ok()
8054 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
8055 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
8056
8057 let mut x = left_offset;
8058 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
8059 - indicator_size.width
8060 - left_offset;
8061 x += available_width / 2.;
8062
8063 let mut y =
8064 Pixels::from((row.as_f64() - scroll_position.y) * ScrollPixelOffset::from(line_height));
8065 y += (line_height - indicator_size.height) / 2.;
8066
8067 button.prepaint_as_root(
8068 gutter_hitbox.origin + point(x, y),
8069 available_space,
8070 window,
8071 cx,
8072 );
8073 button
8074}
8075
8076fn render_inline_blame_entry(
8077 blame_entry: BlameEntry,
8078 style: &EditorStyle,
8079 cx: &mut App,
8080) -> Option<AnyElement> {
8081 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
8082 renderer.render_inline_blame_entry(&style.text, blame_entry, cx)
8083}
8084
8085fn render_blame_entry_popover(
8086 blame_entry: BlameEntry,
8087 scroll_handle: ScrollHandle,
8088 commit_message: Option<ParsedCommitMessage>,
8089 markdown: Entity<Markdown>,
8090 workspace: WeakEntity<Workspace>,
8091 blame: &Entity<GitBlame>,
8092 buffer: BufferId,
8093 window: &mut Window,
8094 cx: &mut App,
8095) -> Option<AnyElement> {
8096 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
8097 let blame = blame.read(cx);
8098 let repository = blame.repository(cx, buffer)?;
8099 renderer.render_blame_entry_popover(
8100 blame_entry,
8101 scroll_handle,
8102 commit_message,
8103 markdown,
8104 repository,
8105 workspace,
8106 window,
8107 cx,
8108 )
8109}
8110
8111fn render_blame_entry(
8112 ix: usize,
8113 blame: &Entity<GitBlame>,
8114 blame_entry: BlameEntry,
8115 style: &EditorStyle,
8116 last_used_color: &mut Option<(Hsla, Oid)>,
8117 editor: Entity<Editor>,
8118 workspace: Entity<Workspace>,
8119 buffer: BufferId,
8120 renderer: &dyn BlameRenderer,
8121 window: &mut Window,
8122 cx: &mut App,
8123) -> Option<AnyElement> {
8124 let index: u32 = blame_entry.sha.into();
8125 let mut sha_color = cx.theme().players().color_for_participant(index).cursor;
8126
8127 // If the last color we used is the same as the one we get for this line, but
8128 // the commit SHAs are different, then we try again to get a different color.
8129 if let Some((color, sha)) = *last_used_color
8130 && sha != blame_entry.sha
8131 && color == sha_color
8132 {
8133 sha_color = cx.theme().players().color_for_participant(index + 1).cursor;
8134 }
8135 last_used_color.replace((sha_color, blame_entry.sha));
8136
8137 let blame = blame.read(cx);
8138 let details = blame.details_for_entry(buffer, &blame_entry);
8139 let repository = blame.repository(cx, buffer)?;
8140 renderer.render_blame_entry(
8141 &style.text,
8142 blame_entry,
8143 details,
8144 repository,
8145 workspace.downgrade(),
8146 editor,
8147 ix,
8148 sha_color,
8149 window,
8150 cx,
8151 )
8152}
8153
8154#[derive(Debug)]
8155pub(crate) struct LineWithInvisibles {
8156 fragments: SmallVec<[LineFragment; 1]>,
8157 invisibles: Vec<Invisible>,
8158 len: usize,
8159 pub(crate) width: Pixels,
8160 font_size: Pixels,
8161}
8162
8163enum LineFragment {
8164 Text(ShapedLine),
8165 Element {
8166 id: ChunkRendererId,
8167 element: Option<AnyElement>,
8168 size: Size<Pixels>,
8169 len: usize,
8170 },
8171}
8172
8173impl fmt::Debug for LineFragment {
8174 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
8175 match self {
8176 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
8177 LineFragment::Element { size, len, .. } => f
8178 .debug_struct("Element")
8179 .field("size", size)
8180 .field("len", len)
8181 .finish(),
8182 }
8183 }
8184}
8185
8186impl LineWithInvisibles {
8187 fn from_chunks<'a>(
8188 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
8189 editor_style: &EditorStyle,
8190 max_line_len: usize,
8191 max_line_count: usize,
8192 editor_mode: &EditorMode,
8193 text_width: Pixels,
8194 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8195 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
8196 window: &mut Window,
8197 cx: &mut App,
8198 ) -> Vec<Self> {
8199 let text_style = &editor_style.text;
8200 let mut layouts = Vec::with_capacity(max_line_count);
8201 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
8202 let mut line = String::new();
8203 let mut invisibles = Vec::new();
8204 let mut width = Pixels::ZERO;
8205 let mut len = 0;
8206 let mut styles = Vec::new();
8207 let mut non_whitespace_added = false;
8208 let mut row = 0;
8209 let mut line_exceeded_max_len = false;
8210 let font_size = text_style.font_size.to_pixels(window.rem_size());
8211 let min_contrast = EditorSettings::get_global(cx).minimum_contrast_for_highlights;
8212
8213 let ellipsis = SharedString::from("β―");
8214
8215 for highlighted_chunk in chunks.chain([HighlightedChunk {
8216 text: "\n",
8217 style: None,
8218 is_tab: false,
8219 is_inlay: false,
8220 replacement: None,
8221 }]) {
8222 if let Some(replacement) = highlighted_chunk.replacement {
8223 if !line.is_empty() {
8224 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8225 let text_runs: &[TextRun] = if segments.is_empty() {
8226 &styles
8227 } else {
8228 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8229 };
8230 let shaped_line = window.text_system().shape_line(
8231 line.clone().into(),
8232 font_size,
8233 text_runs,
8234 None,
8235 );
8236 width += shaped_line.width;
8237 len += shaped_line.len;
8238 fragments.push(LineFragment::Text(shaped_line));
8239 line.clear();
8240 styles.clear();
8241 }
8242
8243 match replacement {
8244 ChunkReplacement::Renderer(renderer) => {
8245 let available_width = if renderer.constrain_width {
8246 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
8247 ellipsis.clone()
8248 } else {
8249 SharedString::from(Arc::from(highlighted_chunk.text))
8250 };
8251 let shaped_line = window.text_system().shape_line(
8252 chunk,
8253 font_size,
8254 &[text_style.to_run(highlighted_chunk.text.len())],
8255 None,
8256 );
8257 AvailableSpace::Definite(shaped_line.width)
8258 } else {
8259 AvailableSpace::MinContent
8260 };
8261
8262 let mut element = (renderer.render)(&mut ChunkRendererContext {
8263 context: cx,
8264 window,
8265 max_width: text_width,
8266 });
8267 let line_height = text_style.line_height_in_pixels(window.rem_size());
8268 let size = element.layout_as_root(
8269 size(available_width, AvailableSpace::Definite(line_height)),
8270 window,
8271 cx,
8272 );
8273
8274 width += size.width;
8275 len += highlighted_chunk.text.len();
8276 fragments.push(LineFragment::Element {
8277 id: renderer.id,
8278 element: Some(element),
8279 size,
8280 len: highlighted_chunk.text.len(),
8281 });
8282 }
8283 ChunkReplacement::Str(x) => {
8284 let text_style = if let Some(style) = highlighted_chunk.style {
8285 Cow::Owned(text_style.clone().highlight(style))
8286 } else {
8287 Cow::Borrowed(text_style)
8288 };
8289
8290 let run = TextRun {
8291 len: x.len(),
8292 font: text_style.font(),
8293 color: text_style.color,
8294 background_color: text_style.background_color,
8295 underline: text_style.underline,
8296 strikethrough: text_style.strikethrough,
8297 };
8298 let line_layout = window
8299 .text_system()
8300 .shape_line(x, font_size, &[run], None)
8301 .with_len(highlighted_chunk.text.len());
8302
8303 width += line_layout.width;
8304 len += highlighted_chunk.text.len();
8305 fragments.push(LineFragment::Text(line_layout))
8306 }
8307 }
8308 } else {
8309 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
8310 if ix > 0 {
8311 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8312 let text_runs = if segments.is_empty() {
8313 &styles
8314 } else {
8315 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8316 };
8317 let shaped_line = window.text_system().shape_line(
8318 line.clone().into(),
8319 font_size,
8320 text_runs,
8321 None,
8322 );
8323 width += shaped_line.width;
8324 len += shaped_line.len;
8325 fragments.push(LineFragment::Text(shaped_line));
8326 layouts.push(Self {
8327 width: mem::take(&mut width),
8328 len: mem::take(&mut len),
8329 fragments: mem::take(&mut fragments),
8330 invisibles: std::mem::take(&mut invisibles),
8331 font_size,
8332 });
8333
8334 line.clear();
8335 styles.clear();
8336 row += 1;
8337 line_exceeded_max_len = false;
8338 non_whitespace_added = false;
8339 if row == max_line_count {
8340 return layouts;
8341 }
8342 }
8343
8344 if !line_chunk.is_empty() && !line_exceeded_max_len {
8345 let text_style = if let Some(style) = highlighted_chunk.style {
8346 Cow::Owned(text_style.clone().highlight(style))
8347 } else {
8348 Cow::Borrowed(text_style)
8349 };
8350
8351 if line.len() + line_chunk.len() > max_line_len {
8352 let mut chunk_len = max_line_len - line.len();
8353 while !line_chunk.is_char_boundary(chunk_len) {
8354 chunk_len -= 1;
8355 }
8356 line_chunk = &line_chunk[..chunk_len];
8357 line_exceeded_max_len = true;
8358 }
8359
8360 styles.push(TextRun {
8361 len: line_chunk.len(),
8362 font: text_style.font(),
8363 color: text_style.color,
8364 background_color: text_style.background_color,
8365 underline: text_style.underline,
8366 strikethrough: text_style.strikethrough,
8367 });
8368
8369 if editor_mode.is_full() && !highlighted_chunk.is_inlay {
8370 // Line wrap pads its contents with fake whitespaces,
8371 // avoid printing them
8372 let is_soft_wrapped = is_row_soft_wrapped(row);
8373 if highlighted_chunk.is_tab {
8374 if non_whitespace_added || !is_soft_wrapped {
8375 invisibles.push(Invisible::Tab {
8376 line_start_offset: line.len(),
8377 line_end_offset: line.len() + line_chunk.len(),
8378 });
8379 }
8380 } else {
8381 invisibles.extend(line_chunk.char_indices().filter_map(
8382 |(index, c)| {
8383 let is_whitespace = c.is_whitespace();
8384 non_whitespace_added |= !is_whitespace;
8385 if is_whitespace
8386 && (non_whitespace_added || !is_soft_wrapped)
8387 {
8388 Some(Invisible::Whitespace {
8389 line_offset: line.len() + index,
8390 })
8391 } else {
8392 None
8393 }
8394 },
8395 ))
8396 }
8397 }
8398
8399 line.push_str(line_chunk);
8400 }
8401 }
8402 }
8403 }
8404
8405 layouts
8406 }
8407
8408 /// Takes text runs and non-overlapping left-to-right background ranges with color.
8409 /// Returns new text runs with adjusted contrast as per background ranges.
8410 fn split_runs_by_bg_segments(
8411 text_runs: &[TextRun],
8412 bg_segments: &[(Range<DisplayPoint>, Hsla)],
8413 min_contrast: f32,
8414 start_col_offset: usize,
8415 ) -> Vec<TextRun> {
8416 let mut output_runs: Vec<TextRun> = Vec::with_capacity(text_runs.len());
8417 let mut line_col = start_col_offset;
8418 let mut segment_ix = 0usize;
8419
8420 for text_run in text_runs.iter() {
8421 let run_start_col = line_col;
8422 let run_end_col = run_start_col + text_run.len;
8423 while segment_ix < bg_segments.len()
8424 && (bg_segments[segment_ix].0.end.column() as usize) <= run_start_col
8425 {
8426 segment_ix += 1;
8427 }
8428 let mut cursor_col = run_start_col;
8429 let mut local_segment_ix = segment_ix;
8430 while local_segment_ix < bg_segments.len() {
8431 let (range, segment_color) = &bg_segments[local_segment_ix];
8432 let segment_start_col = range.start.column() as usize;
8433 let segment_end_col = range.end.column() as usize;
8434 if segment_start_col >= run_end_col {
8435 break;
8436 }
8437 if segment_start_col > cursor_col {
8438 let span_len = segment_start_col - cursor_col;
8439 output_runs.push(TextRun {
8440 len: span_len,
8441 font: text_run.font.clone(),
8442 color: text_run.color,
8443 background_color: text_run.background_color,
8444 underline: text_run.underline,
8445 strikethrough: text_run.strikethrough,
8446 });
8447 cursor_col = segment_start_col;
8448 }
8449 let segment_slice_end_col = segment_end_col.min(run_end_col);
8450 if segment_slice_end_col > cursor_col {
8451 let new_text_color =
8452 ensure_minimum_contrast(text_run.color, *segment_color, min_contrast);
8453 output_runs.push(TextRun {
8454 len: segment_slice_end_col - cursor_col,
8455 font: text_run.font.clone(),
8456 color: new_text_color,
8457 background_color: text_run.background_color,
8458 underline: text_run.underline,
8459 strikethrough: text_run.strikethrough,
8460 });
8461 cursor_col = segment_slice_end_col;
8462 }
8463 if segment_end_col >= run_end_col {
8464 break;
8465 }
8466 local_segment_ix += 1;
8467 }
8468 if cursor_col < run_end_col {
8469 output_runs.push(TextRun {
8470 len: run_end_col - cursor_col,
8471 font: text_run.font.clone(),
8472 color: text_run.color,
8473 background_color: text_run.background_color,
8474 underline: text_run.underline,
8475 strikethrough: text_run.strikethrough,
8476 });
8477 }
8478 line_col = run_end_col;
8479 segment_ix = local_segment_ix;
8480 }
8481 output_runs
8482 }
8483
8484 fn prepaint(
8485 &mut self,
8486 line_height: Pixels,
8487 scroll_position: gpui::Point<ScrollOffset>,
8488 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
8489 row: DisplayRow,
8490 content_origin: gpui::Point<Pixels>,
8491 line_elements: &mut SmallVec<[AnyElement; 1]>,
8492 window: &mut Window,
8493 cx: &mut App,
8494 ) {
8495 let line_y = f32::from(line_height) * Pixels::from(row.as_f64() - scroll_position.y);
8496 self.prepaint_with_custom_offset(
8497 line_height,
8498 scroll_pixel_position,
8499 content_origin,
8500 line_y,
8501 line_elements,
8502 window,
8503 cx,
8504 );
8505 }
8506
8507 fn prepaint_with_custom_offset(
8508 &mut self,
8509 line_height: Pixels,
8510 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
8511 content_origin: gpui::Point<Pixels>,
8512 line_y: Pixels,
8513 line_elements: &mut SmallVec<[AnyElement; 1]>,
8514 window: &mut Window,
8515 cx: &mut App,
8516 ) {
8517 let mut fragment_origin =
8518 content_origin + gpui::point(Pixels::from(-scroll_pixel_position.x), line_y);
8519 for fragment in &mut self.fragments {
8520 match fragment {
8521 LineFragment::Text(line) => {
8522 fragment_origin.x += line.width;
8523 }
8524 LineFragment::Element { element, size, .. } => {
8525 let mut element = element
8526 .take()
8527 .expect("you can't prepaint LineWithInvisibles twice");
8528
8529 // Center the element vertically within the line.
8530 let mut element_origin = fragment_origin;
8531 element_origin.y += (line_height - size.height) / 2.;
8532 element.prepaint_at(element_origin, window, cx);
8533 line_elements.push(element);
8534
8535 fragment_origin.x += size.width;
8536 }
8537 }
8538 }
8539 }
8540
8541 fn draw(
8542 &self,
8543 layout: &EditorLayout,
8544 row: DisplayRow,
8545 content_origin: gpui::Point<Pixels>,
8546 whitespace_setting: ShowWhitespaceSetting,
8547 selection_ranges: &[Range<DisplayPoint>],
8548 window: &mut Window,
8549 cx: &mut App,
8550 ) {
8551 self.draw_with_custom_offset(
8552 layout,
8553 row,
8554 content_origin,
8555 layout.position_map.line_height
8556 * (row.as_f64() - layout.position_map.scroll_position.y) as f32,
8557 whitespace_setting,
8558 selection_ranges,
8559 window,
8560 cx,
8561 );
8562 }
8563
8564 fn draw_with_custom_offset(
8565 &self,
8566 layout: &EditorLayout,
8567 row: DisplayRow,
8568 content_origin: gpui::Point<Pixels>,
8569 line_y: Pixels,
8570 whitespace_setting: ShowWhitespaceSetting,
8571 selection_ranges: &[Range<DisplayPoint>],
8572 window: &mut Window,
8573 cx: &mut App,
8574 ) {
8575 let line_height = layout.position_map.line_height;
8576 let mut fragment_origin = content_origin
8577 + gpui::point(
8578 Pixels::from(-layout.position_map.scroll_pixel_position.x),
8579 line_y,
8580 );
8581
8582 for fragment in &self.fragments {
8583 match fragment {
8584 LineFragment::Text(line) => {
8585 line.paint(fragment_origin, line_height, window, cx)
8586 .log_err();
8587 fragment_origin.x += line.width;
8588 }
8589 LineFragment::Element { size, .. } => {
8590 fragment_origin.x += size.width;
8591 }
8592 }
8593 }
8594
8595 self.draw_invisibles(
8596 selection_ranges,
8597 layout,
8598 content_origin,
8599 line_y,
8600 row,
8601 line_height,
8602 whitespace_setting,
8603 window,
8604 cx,
8605 );
8606 }
8607
8608 fn draw_background(
8609 &self,
8610 layout: &EditorLayout,
8611 row: DisplayRow,
8612 content_origin: gpui::Point<Pixels>,
8613 window: &mut Window,
8614 cx: &mut App,
8615 ) {
8616 let line_height = layout.position_map.line_height;
8617 let line_y = line_height * (row.as_f64() - layout.position_map.scroll_position.y) as f32;
8618
8619 let mut fragment_origin = content_origin
8620 + gpui::point(
8621 Pixels::from(-layout.position_map.scroll_pixel_position.x),
8622 line_y,
8623 );
8624
8625 for fragment in &self.fragments {
8626 match fragment {
8627 LineFragment::Text(line) => {
8628 line.paint_background(fragment_origin, line_height, window, cx)
8629 .log_err();
8630 fragment_origin.x += line.width;
8631 }
8632 LineFragment::Element { size, .. } => {
8633 fragment_origin.x += size.width;
8634 }
8635 }
8636 }
8637 }
8638
8639 fn draw_invisibles(
8640 &self,
8641 selection_ranges: &[Range<DisplayPoint>],
8642 layout: &EditorLayout,
8643 content_origin: gpui::Point<Pixels>,
8644 line_y: Pixels,
8645 row: DisplayRow,
8646 line_height: Pixels,
8647 whitespace_setting: ShowWhitespaceSetting,
8648 window: &mut Window,
8649 cx: &mut App,
8650 ) {
8651 let extract_whitespace_info = |invisible: &Invisible| {
8652 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
8653 Invisible::Tab {
8654 line_start_offset,
8655 line_end_offset,
8656 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
8657 Invisible::Whitespace { line_offset } => {
8658 (*line_offset, line_offset + 1, &layout.space_invisible)
8659 }
8660 };
8661
8662 let x_offset: ScrollPixelOffset = self.x_for_index(token_offset).into();
8663 let invisible_offset: ScrollPixelOffset =
8664 ((layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0)
8665 .into();
8666 let origin = content_origin
8667 + gpui::point(
8668 Pixels::from(
8669 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
8670 ),
8671 line_y,
8672 );
8673
8674 (
8675 [token_offset, token_end_offset],
8676 Box::new(move |window: &mut Window, cx: &mut App| {
8677 invisible_symbol
8678 .paint(origin, line_height, window, cx)
8679 .log_err();
8680 }),
8681 )
8682 };
8683
8684 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
8685 match whitespace_setting {
8686 ShowWhitespaceSetting::None => (),
8687 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
8688 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
8689 let invisible_point = DisplayPoint::new(row, start as u32);
8690 if !selection_ranges
8691 .iter()
8692 .any(|region| region.start <= invisible_point && invisible_point < region.end)
8693 {
8694 return;
8695 }
8696
8697 paint(window, cx);
8698 }),
8699
8700 ShowWhitespaceSetting::Trailing => {
8701 let mut previous_start = self.len;
8702 for ([start, end], paint) in invisible_iter.rev() {
8703 if previous_start != end {
8704 break;
8705 }
8706 previous_start = start;
8707 paint(window, cx);
8708 }
8709 }
8710
8711 // For a whitespace to be on a boundary, any of the following conditions need to be met:
8712 // - It is a tab
8713 // - It is adjacent to an edge (start or end)
8714 // - It is adjacent to a whitespace (left or right)
8715 ShowWhitespaceSetting::Boundary => {
8716 // 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
8717 // the above cases.
8718 // Note: We zip in the original `invisibles` to check for tab equality
8719 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
8720 for (([start, end], paint), invisible) in
8721 invisible_iter.zip_eq(self.invisibles.iter())
8722 {
8723 let should_render = match (&last_seen, invisible) {
8724 (_, Invisible::Tab { .. }) => true,
8725 (Some((_, last_end, _)), _) => *last_end == start,
8726 _ => false,
8727 };
8728
8729 if should_render || start == 0 || end == self.len {
8730 paint(window, cx);
8731
8732 // Since we are scanning from the left, we will skip over the first available whitespace that is part
8733 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
8734 if let Some((should_render_last, last_end, paint_last)) = last_seen {
8735 // Note that we need to make sure that the last one is actually adjacent
8736 if !should_render_last && last_end == start {
8737 paint_last(window, cx);
8738 }
8739 }
8740 }
8741
8742 // Manually render anything within a selection
8743 let invisible_point = DisplayPoint::new(row, start as u32);
8744 if selection_ranges.iter().any(|region| {
8745 region.start <= invisible_point && invisible_point < region.end
8746 }) {
8747 paint(window, cx);
8748 }
8749
8750 last_seen = Some((should_render, end, paint));
8751 }
8752 }
8753 }
8754 }
8755
8756 pub fn x_for_index(&self, index: usize) -> Pixels {
8757 let mut fragment_start_x = Pixels::ZERO;
8758 let mut fragment_start_index = 0;
8759
8760 for fragment in &self.fragments {
8761 match fragment {
8762 LineFragment::Text(shaped_line) => {
8763 let fragment_end_index = fragment_start_index + shaped_line.len;
8764 if index < fragment_end_index {
8765 return fragment_start_x
8766 + shaped_line.x_for_index(index - fragment_start_index);
8767 }
8768 fragment_start_x += shaped_line.width;
8769 fragment_start_index = fragment_end_index;
8770 }
8771 LineFragment::Element { len, size, .. } => {
8772 let fragment_end_index = fragment_start_index + len;
8773 if index < fragment_end_index {
8774 return fragment_start_x;
8775 }
8776 fragment_start_x += size.width;
8777 fragment_start_index = fragment_end_index;
8778 }
8779 }
8780 }
8781
8782 fragment_start_x
8783 }
8784
8785 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
8786 let mut fragment_start_x = Pixels::ZERO;
8787 let mut fragment_start_index = 0;
8788
8789 for fragment in &self.fragments {
8790 match fragment {
8791 LineFragment::Text(shaped_line) => {
8792 let fragment_end_x = fragment_start_x + shaped_line.width;
8793 if x < fragment_end_x {
8794 return Some(
8795 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
8796 );
8797 }
8798 fragment_start_x = fragment_end_x;
8799 fragment_start_index += shaped_line.len;
8800 }
8801 LineFragment::Element { len, size, .. } => {
8802 let fragment_end_x = fragment_start_x + size.width;
8803 if x < fragment_end_x {
8804 return Some(fragment_start_index);
8805 }
8806 fragment_start_index += len;
8807 fragment_start_x = fragment_end_x;
8808 }
8809 }
8810 }
8811
8812 None
8813 }
8814
8815 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
8816 let mut fragment_start_index = 0;
8817
8818 for fragment in &self.fragments {
8819 match fragment {
8820 LineFragment::Text(shaped_line) => {
8821 let fragment_end_index = fragment_start_index + shaped_line.len;
8822 if index < fragment_end_index {
8823 return shaped_line.font_id_for_index(index - fragment_start_index);
8824 }
8825 fragment_start_index = fragment_end_index;
8826 }
8827 LineFragment::Element { len, .. } => {
8828 let fragment_end_index = fragment_start_index + len;
8829 if index < fragment_end_index {
8830 return None;
8831 }
8832 fragment_start_index = fragment_end_index;
8833 }
8834 }
8835 }
8836
8837 None
8838 }
8839}
8840
8841#[derive(Debug, Clone, Copy, PartialEq, Eq)]
8842enum Invisible {
8843 /// A tab character
8844 ///
8845 /// A tab character is internally represented by spaces (configured by the user's tab width)
8846 /// aligned to the nearest column, so it's necessary to store the start and end offset for
8847 /// adjacency checks.
8848 Tab {
8849 line_start_offset: usize,
8850 line_end_offset: usize,
8851 },
8852 Whitespace {
8853 line_offset: usize,
8854 },
8855}
8856
8857impl EditorElement {
8858 /// Returns the rem size to use when rendering the [`EditorElement`].
8859 ///
8860 /// This allows UI elements to scale based on the `buffer_font_size`.
8861 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
8862 match self.editor.read(cx).mode {
8863 EditorMode::Full {
8864 scale_ui_elements_with_buffer_font_size: true,
8865 ..
8866 }
8867 | EditorMode::Minimap { .. } => {
8868 let buffer_font_size = self.style.text.font_size;
8869 match buffer_font_size {
8870 AbsoluteLength::Pixels(pixels) => {
8871 let rem_size_scale = {
8872 // Our default UI font size is 14px on a 16px base scale.
8873 // This means the default UI font size is 0.875rems.
8874 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
8875
8876 // We then determine the delta between a single rem and the default font
8877 // size scale.
8878 let default_font_size_delta = 1. - default_font_size_scale;
8879
8880 // Finally, we add this delta to 1rem to get the scale factor that
8881 // should be used to scale up the UI.
8882 1. + default_font_size_delta
8883 };
8884
8885 Some(pixels * rem_size_scale)
8886 }
8887 AbsoluteLength::Rems(rems) => {
8888 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
8889 }
8890 }
8891 }
8892 // We currently use single-line and auto-height editors in UI contexts,
8893 // so we don't want to scale everything with the buffer font size, as it
8894 // ends up looking off.
8895 _ => None,
8896 }
8897 }
8898
8899 fn editor_with_selections(&self, cx: &App) -> Option<Entity<Editor>> {
8900 if let EditorMode::Minimap { parent } = self.editor.read(cx).mode() {
8901 parent.upgrade()
8902 } else {
8903 Some(self.editor.clone())
8904 }
8905 }
8906}
8907
8908#[derive(Default)]
8909pub struct EditorRequestLayoutState {
8910 // We use prepaint depth to limit the number of times prepaint is
8911 // called recursively. We need this so that we can update stale
8912 // data for e.g. block heights in block map.
8913 prepaint_depth: Rc<Cell<usize>>,
8914}
8915
8916impl EditorRequestLayoutState {
8917 // In ideal conditions we only need one more subsequent prepaint call for resize to take effect.
8918 // i.e. MAX_PREPAINT_DEPTH = 2, but since moving blocks inline (place_near), more lines from
8919 // below get exposed, and we end up querying blocks for those lines too in subsequent renders.
8920 // Setting MAX_PREPAINT_DEPTH = 3, passes all tests. Just to be on the safe side we set it to 5, so
8921 // that subsequent shrinking does not lead to incorrect block placing.
8922 const MAX_PREPAINT_DEPTH: usize = 5;
8923
8924 fn increment_prepaint_depth(&self) -> EditorPrepaintGuard {
8925 let depth = self.prepaint_depth.get();
8926 self.prepaint_depth.set(depth + 1);
8927 EditorPrepaintGuard {
8928 prepaint_depth: self.prepaint_depth.clone(),
8929 }
8930 }
8931
8932 fn can_prepaint(&self) -> bool {
8933 self.prepaint_depth.get() < Self::MAX_PREPAINT_DEPTH
8934 }
8935}
8936
8937struct EditorPrepaintGuard {
8938 prepaint_depth: Rc<Cell<usize>>,
8939}
8940
8941impl Drop for EditorPrepaintGuard {
8942 fn drop(&mut self) {
8943 let depth = self.prepaint_depth.get();
8944 self.prepaint_depth.set(depth.saturating_sub(1));
8945 }
8946}
8947
8948impl Element for EditorElement {
8949 type RequestLayoutState = EditorRequestLayoutState;
8950 type PrepaintState = EditorLayout;
8951
8952 fn id(&self) -> Option<ElementId> {
8953 None
8954 }
8955
8956 fn source_location(&self) -> Option<&'static core::panic::Location<'static>> {
8957 None
8958 }
8959
8960 fn request_layout(
8961 &mut self,
8962 _: Option<&GlobalElementId>,
8963 _inspector_id: Option<&gpui::InspectorElementId>,
8964 window: &mut Window,
8965 cx: &mut App,
8966 ) -> (gpui::LayoutId, Self::RequestLayoutState) {
8967 let rem_size = self.rem_size(cx);
8968 window.with_rem_size(rem_size, |window| {
8969 self.editor.update(cx, |editor, cx| {
8970 editor.set_style(self.style.clone(), window, cx);
8971
8972 let layout_id = match editor.mode {
8973 EditorMode::SingleLine => {
8974 let rem_size = window.rem_size();
8975 let height = self.style.text.line_height_in_pixels(rem_size);
8976 let mut style = Style::default();
8977 style.size.height = height.into();
8978 style.size.width = relative(1.).into();
8979 window.request_layout(style, None, cx)
8980 }
8981 EditorMode::AutoHeight {
8982 min_lines,
8983 max_lines,
8984 } => {
8985 let editor_handle = cx.entity();
8986 window.request_measured_layout(
8987 Style::default(),
8988 move |known_dimensions, available_space, window, cx| {
8989 editor_handle
8990 .update(cx, |editor, cx| {
8991 compute_auto_height_layout(
8992 editor,
8993 min_lines,
8994 max_lines,
8995 known_dimensions,
8996 available_space.width,
8997 window,
8998 cx,
8999 )
9000 })
9001 .unwrap_or_default()
9002 },
9003 )
9004 }
9005 EditorMode::Minimap { .. } => {
9006 let mut style = Style::default();
9007 style.size.width = relative(1.).into();
9008 style.size.height = relative(1.).into();
9009 window.request_layout(style, None, cx)
9010 }
9011 EditorMode::Full {
9012 sizing_behavior, ..
9013 } => {
9014 let mut style = Style::default();
9015 style.size.width = relative(1.).into();
9016 if sizing_behavior == SizingBehavior::SizeByContent {
9017 let snapshot = editor.snapshot(window, cx);
9018 let line_height =
9019 self.style.text.line_height_in_pixels(window.rem_size());
9020 let scroll_height =
9021 (snapshot.max_point().row().next_row().0 as f32) * line_height;
9022 style.size.height = scroll_height.into();
9023 } else {
9024 style.size.height = relative(1.).into();
9025 }
9026 window.request_layout(style, None, cx)
9027 }
9028 };
9029
9030 (layout_id, EditorRequestLayoutState::default())
9031 })
9032 })
9033 }
9034
9035 fn prepaint(
9036 &mut self,
9037 _: Option<&GlobalElementId>,
9038 _inspector_id: Option<&gpui::InspectorElementId>,
9039 bounds: Bounds<Pixels>,
9040 request_layout: &mut Self::RequestLayoutState,
9041 window: &mut Window,
9042 cx: &mut App,
9043 ) -> Self::PrepaintState {
9044 let _prepaint_depth_guard = request_layout.increment_prepaint_depth();
9045 let text_style = TextStyleRefinement {
9046 font_size: Some(self.style.text.font_size),
9047 line_height: Some(self.style.text.line_height),
9048 ..Default::default()
9049 };
9050
9051 let is_minimap = self.editor.read(cx).mode.is_minimap();
9052 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
9053
9054 if !is_minimap {
9055 let focus_handle = self.editor.focus_handle(cx);
9056 window.set_view_id(self.editor.entity_id());
9057 window.set_focus_handle(&focus_handle, cx);
9058 }
9059
9060 let rem_size = self.rem_size(cx);
9061 window.with_rem_size(rem_size, |window| {
9062 window.with_text_style(Some(text_style), |window| {
9063 window.with_content_mask(Some(ContentMask { bounds }), |window| {
9064 let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| {
9065 (editor.snapshot(window, cx), editor.read_only(cx))
9066 });
9067 let style = &self.style;
9068
9069 let rem_size = window.rem_size();
9070 let font_id = window.text_system().resolve_font(&style.text.font());
9071 let font_size = style.text.font_size.to_pixels(rem_size);
9072 let line_height = style.text.line_height_in_pixels(rem_size);
9073 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
9074 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
9075 let glyph_grid_cell = size(em_advance, line_height);
9076
9077 let gutter_dimensions = snapshot
9078 .gutter_dimensions(
9079 font_id,
9080 font_size,
9081 style,
9082 window,
9083 cx,
9084 );
9085 let text_width = bounds.size.width - gutter_dimensions.width;
9086
9087 let settings = EditorSettings::get_global(cx);
9088 let scrollbars_shown = settings.scrollbar.show != ShowScrollbar::Never;
9089 let vertical_scrollbar_width = (scrollbars_shown
9090 && settings.scrollbar.axes.vertical
9091 && self.editor.read(cx).show_scrollbars.vertical)
9092 .then_some(style.scrollbar_width)
9093 .unwrap_or_default();
9094 let minimap_width = self
9095 .get_minimap_width(
9096 &settings.minimap,
9097 scrollbars_shown,
9098 text_width,
9099 em_width,
9100 font_size,
9101 rem_size,
9102 cx,
9103 )
9104 .unwrap_or_default();
9105
9106 let right_margin = minimap_width + vertical_scrollbar_width;
9107
9108 let editor_width =
9109 text_width - gutter_dimensions.margin - 2 * em_width - right_margin;
9110 let editor_margins = EditorMargins {
9111 gutter: gutter_dimensions,
9112 right: right_margin,
9113 };
9114
9115 snapshot = self.editor.update(cx, |editor, cx| {
9116 editor.last_bounds = Some(bounds);
9117 editor.gutter_dimensions = gutter_dimensions;
9118 editor.set_visible_line_count(
9119 (bounds.size.height / line_height) as f64,
9120 window,
9121 cx,
9122 );
9123 editor.set_visible_column_count(f64::from(editor_width / em_advance));
9124
9125 if matches!(
9126 editor.mode,
9127 EditorMode::AutoHeight { .. } | EditorMode::Minimap { .. }
9128 ) {
9129 snapshot
9130 } else {
9131 let wrap_width_for = |column: u32| (column as f32 * em_advance).ceil();
9132 let wrap_width = match editor.soft_wrap_mode(cx) {
9133 SoftWrap::GitDiff => None,
9134 SoftWrap::None => Some(wrap_width_for(MAX_LINE_LEN as u32 / 2)),
9135 SoftWrap::EditorWidth => Some(editor_width),
9136 SoftWrap::Column(column) => Some(wrap_width_for(column)),
9137 SoftWrap::Bounded(column) => {
9138 Some(editor_width.min(wrap_width_for(column)))
9139 }
9140 };
9141
9142 if editor.set_wrap_width(wrap_width, cx) {
9143 editor.snapshot(window, cx)
9144 } else {
9145 snapshot
9146 }
9147 }
9148 });
9149
9150 let hitbox = window.insert_hitbox(bounds, HitboxBehavior::Normal);
9151 let gutter_hitbox = window.insert_hitbox(
9152 gutter_bounds(bounds, gutter_dimensions),
9153 HitboxBehavior::Normal,
9154 );
9155 let text_hitbox = window.insert_hitbox(
9156 Bounds {
9157 origin: gutter_hitbox.top_right(),
9158 size: size(text_width, bounds.size.height),
9159 },
9160 HitboxBehavior::Normal,
9161 );
9162
9163 // Offset the content_bounds from the text_bounds by the gutter margin (which
9164 // is roughly half a character wide) to make hit testing work more like how we want.
9165 let content_offset = point(editor_margins.gutter.margin, Pixels::ZERO);
9166 let content_origin = text_hitbox.origin + content_offset;
9167
9168 let height_in_lines = f64::from(bounds.size.height / line_height);
9169 let max_row = snapshot.max_point().row().as_f64();
9170
9171 // Calculate how much of the editor is clipped by parent containers (e.g., List).
9172 // This allows us to only render lines that are actually visible, which is
9173 // critical for performance when large AutoHeight editors are inside Lists.
9174 let visible_bounds = window.content_mask().bounds;
9175 let clipped_top = (visible_bounds.origin.y - bounds.origin.y).max(px(0.));
9176 let clipped_top_in_lines = f64::from(clipped_top / line_height);
9177 let visible_height_in_lines =
9178 f64::from(visible_bounds.size.height / line_height);
9179
9180 // The max scroll position for the top of the window
9181 let max_scroll_top = if matches!(
9182 snapshot.mode,
9183 EditorMode::SingleLine
9184 | EditorMode::AutoHeight { .. }
9185 | EditorMode::Full {
9186 sizing_behavior: SizingBehavior::ExcludeOverscrollMargin
9187 | SizingBehavior::SizeByContent,
9188 ..
9189 }
9190 ) {
9191 (max_row - height_in_lines + 1.).max(0.)
9192 } else {
9193 let settings = EditorSettings::get_global(cx);
9194 match settings.scroll_beyond_last_line {
9195 ScrollBeyondLastLine::OnePage => max_row,
9196 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
9197 ScrollBeyondLastLine::VerticalScrollMargin => {
9198 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
9199 .max(0.)
9200 }
9201 }
9202 };
9203
9204 let (
9205 autoscroll_request,
9206 autoscroll_containing_element,
9207 needs_horizontal_autoscroll,
9208 ) = self.editor.update(cx, |editor, cx| {
9209 let autoscroll_request = editor.scroll_manager.take_autoscroll_request();
9210
9211 let autoscroll_containing_element =
9212 autoscroll_request.is_some() || editor.has_pending_selection();
9213
9214 let (needs_horizontal_autoscroll, was_scrolled) = editor
9215 .autoscroll_vertically(
9216 bounds,
9217 line_height,
9218 max_scroll_top,
9219 autoscroll_request,
9220 window,
9221 cx,
9222 );
9223 if was_scrolled.0 {
9224 snapshot = editor.snapshot(window, cx);
9225 }
9226 (
9227 autoscroll_request,
9228 autoscroll_containing_element,
9229 needs_horizontal_autoscroll,
9230 )
9231 });
9232
9233 let mut scroll_position = snapshot.scroll_position();
9234 // The scroll position is a fractional point, the whole number of which represents
9235 // the top of the window in terms of display rows.
9236 // We add clipped_top_in_lines to skip rows that are clipped by parent containers,
9237 // but we don't modify scroll_position itself since the parent handles positioning.
9238 let max_row = snapshot.max_point().row();
9239 let start_row = cmp::min(
9240 DisplayRow((scroll_position.y + clipped_top_in_lines).floor() as u32),
9241 max_row,
9242 );
9243 let end_row = cmp::min(
9244 (scroll_position.y + clipped_top_in_lines + visible_height_in_lines).ceil()
9245 as u32,
9246 max_row.next_row().0,
9247 );
9248 let end_row = DisplayRow(end_row);
9249
9250 let row_infos = snapshot // note we only get the visual range
9251 .row_infos(start_row)
9252 .take((start_row..end_row).len())
9253 .collect::<Vec<RowInfo>>();
9254 let is_row_soft_wrapped = |row: usize| {
9255 row_infos
9256 .get(row)
9257 .is_none_or(|info| info.buffer_row.is_none())
9258 };
9259
9260 let start_anchor = if start_row == Default::default() {
9261 Anchor::min()
9262 } else {
9263 snapshot.buffer_snapshot().anchor_before(
9264 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
9265 )
9266 };
9267 let end_anchor = if end_row > max_row {
9268 Anchor::max()
9269 } else {
9270 snapshot.buffer_snapshot().anchor_before(
9271 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
9272 )
9273 };
9274
9275 let mut highlighted_rows = self
9276 .editor
9277 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
9278
9279 let is_light = cx.theme().appearance().is_light();
9280
9281 let mut highlighted_ranges = self
9282 .editor_with_selections(cx)
9283 .map(|editor| {
9284 editor.read(cx).background_highlights_in_range(
9285 start_anchor..end_anchor,
9286 &snapshot.display_snapshot,
9287 cx.theme(),
9288 )
9289 })
9290 .unwrap_or_default();
9291
9292 for (ix, row_info) in row_infos.iter().enumerate() {
9293 let Some(diff_status) = row_info.diff_status else {
9294 continue;
9295 };
9296
9297 let background_color = match diff_status.kind {
9298 DiffHunkStatusKind::Added =>
9299 cx.theme().colors().version_control_added,
9300 DiffHunkStatusKind::Deleted =>
9301 cx.theme().colors().version_control_deleted,
9302 DiffHunkStatusKind::Modified => {
9303 debug_panic!("modified diff status for row info");
9304 continue;
9305 }
9306 };
9307
9308 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
9309
9310 let hollow_highlight = LineHighlight {
9311 background: (background_color.opacity(if is_light {
9312 0.08
9313 } else {
9314 0.06
9315 }))
9316 .into(),
9317 border: Some(if is_light {
9318 background_color.opacity(0.48)
9319 } else {
9320 background_color.opacity(0.36)
9321 }),
9322 include_gutter: true,
9323 type_id: None,
9324 };
9325
9326 let filled_highlight = LineHighlight {
9327 background: solid_background(background_color.opacity(hunk_opacity)),
9328 border: None,
9329 include_gutter: true,
9330 type_id: None,
9331 };
9332
9333 let background = if Self::diff_hunk_hollow(diff_status, cx) {
9334 hollow_highlight
9335 } else {
9336 filled_highlight
9337 };
9338
9339 let base_display_point =
9340 DisplayPoint::new(start_row + DisplayRow(ix as u32), 0);
9341
9342 highlighted_rows
9343 .entry(base_display_point.row())
9344 .or_insert(background);
9345 }
9346
9347 let highlighted_gutter_ranges =
9348 self.editor.read(cx).gutter_highlights_in_range(
9349 start_anchor..end_anchor,
9350 &snapshot.display_snapshot,
9351 cx,
9352 );
9353
9354 let document_colors = self
9355 .editor
9356 .read(cx)
9357 .colors
9358 .as_ref()
9359 .map(|colors| colors.editor_display_highlights(&snapshot));
9360 let redacted_ranges = self.editor.read(cx).redacted_ranges(
9361 start_anchor..end_anchor,
9362 &snapshot.display_snapshot,
9363 cx,
9364 );
9365
9366 let (local_selections, selected_buffer_ids, latest_selection_anchors): (
9367 Vec<Selection<Point>>,
9368 Vec<BufferId>,
9369 HashMap<BufferId, Anchor>,
9370 ) = self
9371 .editor_with_selections(cx)
9372 .map(|editor| {
9373 editor.update(cx, |editor, cx| {
9374 let all_selections =
9375 editor.selections.all::<Point>(&snapshot.display_snapshot);
9376 let all_anchor_selections =
9377 editor.selections.all_anchors(&snapshot.display_snapshot);
9378 let selected_buffer_ids =
9379 if editor.buffer_kind(cx) == ItemBufferKind::Singleton {
9380 Vec::new()
9381 } else {
9382 let mut selected_buffer_ids =
9383 Vec::with_capacity(all_selections.len());
9384
9385 for selection in all_selections {
9386 for buffer_id in snapshot
9387 .buffer_snapshot()
9388 .buffer_ids_for_range(selection.range())
9389 {
9390 if selected_buffer_ids.last() != Some(&buffer_id) {
9391 selected_buffer_ids.push(buffer_id);
9392 }
9393 }
9394 }
9395
9396 selected_buffer_ids
9397 };
9398
9399 let mut selections = editor.selections.disjoint_in_range(
9400 start_anchor..end_anchor,
9401 &snapshot.display_snapshot,
9402 );
9403 selections
9404 .extend(editor.selections.pending(&snapshot.display_snapshot));
9405
9406 let mut anchors_by_buffer: HashMap<BufferId, (usize, Anchor)> =
9407 HashMap::default();
9408 for selection in all_anchor_selections.iter() {
9409 let head = selection.head();
9410 if let Some(buffer_id) = head.text_anchor.buffer_id {
9411 anchors_by_buffer
9412 .entry(buffer_id)
9413 .and_modify(|(latest_id, latest_anchor)| {
9414 if selection.id > *latest_id {
9415 *latest_id = selection.id;
9416 *latest_anchor = head;
9417 }
9418 })
9419 .or_insert((selection.id, head));
9420 }
9421 }
9422 let latest_selection_anchors = anchors_by_buffer
9423 .into_iter()
9424 .map(|(buffer_id, (_, anchor))| (buffer_id, anchor))
9425 .collect();
9426
9427 (selections, selected_buffer_ids, latest_selection_anchors)
9428 })
9429 })
9430 .unwrap_or_else(|| (Vec::new(), Vec::new(), HashMap::default()));
9431
9432 let (selections, mut active_rows, newest_selection_head) = self
9433 .layout_selections(
9434 start_anchor,
9435 end_anchor,
9436 &local_selections,
9437 &snapshot,
9438 start_row,
9439 end_row,
9440 window,
9441 cx,
9442 );
9443 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
9444 editor.active_breakpoints(start_row..end_row, window, cx)
9445 });
9446 for (display_row, (_, bp, state)) in &breakpoint_rows {
9447 if bp.is_enabled() && state.is_none_or(|s| s.verified) {
9448 active_rows.entry(*display_row).or_default().breakpoint = true;
9449 }
9450 }
9451
9452 let line_numbers = self.layout_line_numbers(
9453 Some(&gutter_hitbox),
9454 gutter_dimensions,
9455 line_height,
9456 scroll_position,
9457 start_row..end_row,
9458 &row_infos,
9459 &active_rows,
9460 newest_selection_head,
9461 &snapshot,
9462 window,
9463 cx,
9464 );
9465
9466 // We add the gutter breakpoint indicator to breakpoint_rows after painting
9467 // line numbers so we don't paint a line number debug accent color if a user
9468 // has their mouse over that line when a breakpoint isn't there
9469 self.editor.update(cx, |editor, _| {
9470 if let Some(phantom_breakpoint) = &mut editor
9471 .gutter_breakpoint_indicator
9472 .0
9473 .filter(|phantom_breakpoint| phantom_breakpoint.is_active)
9474 {
9475 // Is there a non-phantom breakpoint on this line?
9476 phantom_breakpoint.collides_with_existing_breakpoint = true;
9477 breakpoint_rows
9478 .entry(phantom_breakpoint.display_row)
9479 .or_insert_with(|| {
9480 let position = snapshot.display_point_to_anchor(
9481 DisplayPoint::new(phantom_breakpoint.display_row, 0),
9482 Bias::Right,
9483 );
9484 let breakpoint = Breakpoint::new_standard();
9485 phantom_breakpoint.collides_with_existing_breakpoint = false;
9486 (position, breakpoint, None)
9487 });
9488 }
9489 });
9490
9491 let mut expand_toggles =
9492 window.with_element_namespace("expand_toggles", |window| {
9493 self.layout_expand_toggles(
9494 &gutter_hitbox,
9495 gutter_dimensions,
9496 em_width,
9497 line_height,
9498 scroll_position,
9499 &row_infos,
9500 window,
9501 cx,
9502 )
9503 });
9504
9505 let mut crease_toggles =
9506 window.with_element_namespace("crease_toggles", |window| {
9507 self.layout_crease_toggles(
9508 start_row..end_row,
9509 &row_infos,
9510 &active_rows,
9511 &snapshot,
9512 window,
9513 cx,
9514 )
9515 });
9516 let crease_trailers =
9517 window.with_element_namespace("crease_trailers", |window| {
9518 self.layout_crease_trailers(
9519 row_infos.iter().cloned(),
9520 &snapshot,
9521 window,
9522 cx,
9523 )
9524 });
9525
9526 let display_hunks = self.layout_gutter_diff_hunks(
9527 line_height,
9528 &gutter_hitbox,
9529 start_row..end_row,
9530 &snapshot,
9531 window,
9532 cx,
9533 );
9534
9535 Self::layout_word_diff_highlights(
9536 &display_hunks,
9537 &row_infos,
9538 start_row,
9539 &snapshot,
9540 &mut highlighted_ranges,
9541 cx,
9542 );
9543
9544 let merged_highlighted_ranges =
9545 if let Some((_, colors)) = document_colors.as_ref() {
9546 &highlighted_ranges
9547 .clone()
9548 .into_iter()
9549 .chain(colors.clone())
9550 .collect()
9551 } else {
9552 &highlighted_ranges
9553 };
9554 let bg_segments_per_row = Self::bg_segments_per_row(
9555 start_row..end_row,
9556 &selections,
9557 &merged_highlighted_ranges,
9558 self.style.background,
9559 );
9560
9561 let mut line_layouts = Self::layout_lines(
9562 start_row..end_row,
9563 &snapshot,
9564 &self.style,
9565 editor_width,
9566 is_row_soft_wrapped,
9567 &bg_segments_per_row,
9568 window,
9569 cx,
9570 );
9571 let new_renderer_widths = (!is_minimap).then(|| {
9572 line_layouts
9573 .iter()
9574 .flat_map(|layout| &layout.fragments)
9575 .filter_map(|fragment| {
9576 if let LineFragment::Element { id, size, .. } = fragment {
9577 Some((*id, size.width))
9578 } else {
9579 None
9580 }
9581 })
9582 });
9583 if new_renderer_widths.is_some_and(|new_renderer_widths| {
9584 self.editor.update(cx, |editor, cx| {
9585 editor.update_renderer_widths(new_renderer_widths, cx)
9586 })
9587 }) {
9588 // If the fold widths have changed, we need to prepaint
9589 // the element again to account for any changes in
9590 // wrapping.
9591 if request_layout.can_prepaint() {
9592 return self.prepaint(
9593 None,
9594 _inspector_id,
9595 bounds,
9596 request_layout,
9597 window,
9598 cx,
9599 );
9600 } else {
9601 debug_panic!(
9602 "skipping recursive prepaint at max depth. renderer widths may be stale."
9603 );
9604 }
9605 }
9606
9607 let longest_line_blame_width = self
9608 .editor
9609 .update(cx, |editor, cx| {
9610 if !editor.show_git_blame_inline {
9611 return None;
9612 }
9613 let blame = editor.blame.as_ref()?;
9614 let (_, blame_entry) = blame
9615 .update(cx, |blame, cx| {
9616 let row_infos =
9617 snapshot.row_infos(snapshot.longest_row()).next()?;
9618 blame.blame_for_rows(&[row_infos], cx).next()
9619 })
9620 .flatten()?;
9621 let mut element = render_inline_blame_entry(blame_entry, style, cx)?;
9622 let inline_blame_padding =
9623 ProjectSettings::get_global(cx).git.inline_blame.padding as f32
9624 * em_advance;
9625 Some(
9626 element
9627 .layout_as_root(AvailableSpace::min_size(), window, cx)
9628 .width
9629 + inline_blame_padding,
9630 )
9631 })
9632 .unwrap_or(Pixels::ZERO);
9633
9634 let longest_line_width = layout_line(
9635 snapshot.longest_row(),
9636 &snapshot,
9637 style,
9638 editor_width,
9639 is_row_soft_wrapped,
9640 window,
9641 cx,
9642 )
9643 .width;
9644
9645 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
9646 text_hitbox.bounds,
9647 glyph_grid_cell,
9648 size(
9649 longest_line_width,
9650 Pixels::from(max_row.as_f64() * f64::from(line_height)),
9651 ),
9652 longest_line_blame_width,
9653 EditorSettings::get_global(cx),
9654 );
9655
9656 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
9657
9658 let sticky_header_excerpt = if snapshot.buffer_snapshot().show_headers() {
9659 snapshot.sticky_header_excerpt(scroll_position.y)
9660 } else {
9661 None
9662 };
9663 let sticky_header_excerpt_id =
9664 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
9665
9666 let blocks = (!is_minimap)
9667 .then(|| {
9668 window.with_element_namespace("blocks", |window| {
9669 self.render_blocks(
9670 start_row..end_row,
9671 &snapshot,
9672 &hitbox,
9673 &text_hitbox,
9674 editor_width,
9675 &mut scroll_width,
9676 &editor_margins,
9677 em_width,
9678 gutter_dimensions.full_width(),
9679 line_height,
9680 &mut line_layouts,
9681 &local_selections,
9682 &selected_buffer_ids,
9683 &latest_selection_anchors,
9684 is_row_soft_wrapped,
9685 sticky_header_excerpt_id,
9686 window,
9687 cx,
9688 )
9689 })
9690 })
9691 .unwrap_or_default();
9692 let RenderBlocksOutput {
9693 mut blocks,
9694 row_block_types,
9695 resized_blocks,
9696 } = blocks;
9697 if let Some(resized_blocks) = resized_blocks {
9698 self.editor.update(cx, |editor, cx| {
9699 editor.resize_blocks(
9700 resized_blocks,
9701 autoscroll_request.map(|(autoscroll, _)| autoscroll),
9702 cx,
9703 )
9704 });
9705 if request_layout.can_prepaint() {
9706 return self.prepaint(
9707 None,
9708 _inspector_id,
9709 bounds,
9710 request_layout,
9711 window,
9712 cx,
9713 );
9714 } else {
9715 debug_panic!(
9716 "skipping recursive prepaint at max depth. block layout may be stale."
9717 );
9718 }
9719 }
9720
9721 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
9722 window.with_element_namespace("blocks", |window| {
9723 self.layout_sticky_buffer_header(
9724 sticky_header_excerpt,
9725 scroll_position,
9726 line_height,
9727 right_margin,
9728 &snapshot,
9729 &hitbox,
9730 &selected_buffer_ids,
9731 &blocks,
9732 &latest_selection_anchors,
9733 window,
9734 cx,
9735 )
9736 })
9737 });
9738
9739 let start_buffer_row =
9740 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot()).row);
9741 let end_buffer_row =
9742 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot()).row);
9743
9744 let scroll_max: gpui::Point<ScrollPixelOffset> = point(
9745 ScrollPixelOffset::from(
9746 ((scroll_width - editor_width) / em_advance).max(0.0),
9747 ),
9748 max_scroll_top,
9749 );
9750
9751 self.editor.update(cx, |editor, cx| {
9752 if editor.scroll_manager.clamp_scroll_left(scroll_max.x) {
9753 scroll_position.x = scroll_position.x.min(scroll_max.x);
9754 }
9755
9756 if needs_horizontal_autoscroll.0
9757 && let Some(new_scroll_position) = editor.autoscroll_horizontally(
9758 start_row,
9759 editor_width,
9760 scroll_width,
9761 em_advance,
9762 &line_layouts,
9763 autoscroll_request,
9764 window,
9765 cx,
9766 )
9767 {
9768 scroll_position = new_scroll_position;
9769 }
9770 });
9771
9772 let scroll_pixel_position = point(
9773 scroll_position.x * f64::from(em_advance),
9774 scroll_position.y * f64::from(line_height),
9775 );
9776 let sticky_headers = if !is_minimap
9777 && is_singleton
9778 && EditorSettings::get_global(cx).sticky_scroll.enabled
9779 {
9780 self.layout_sticky_headers(
9781 &snapshot,
9782 editor_width,
9783 is_row_soft_wrapped,
9784 line_height,
9785 scroll_pixel_position,
9786 content_origin,
9787 &gutter_dimensions,
9788 &gutter_hitbox,
9789 &text_hitbox,
9790 &style,
9791 window,
9792 cx,
9793 )
9794 } else {
9795 None
9796 };
9797 let indent_guides = self.layout_indent_guides(
9798 content_origin,
9799 text_hitbox.origin,
9800 start_buffer_row..end_buffer_row,
9801 scroll_pixel_position,
9802 line_height,
9803 &snapshot,
9804 window,
9805 cx,
9806 );
9807
9808 let crease_trailers =
9809 window.with_element_namespace("crease_trailers", |window| {
9810 self.prepaint_crease_trailers(
9811 crease_trailers,
9812 &line_layouts,
9813 line_height,
9814 content_origin,
9815 scroll_pixel_position,
9816 em_width,
9817 window,
9818 cx,
9819 )
9820 });
9821
9822 let (edit_prediction_popover, edit_prediction_popover_origin) = self
9823 .editor
9824 .update(cx, |editor, cx| {
9825 editor.render_edit_prediction_popover(
9826 &text_hitbox.bounds,
9827 content_origin,
9828 right_margin,
9829 &snapshot,
9830 start_row..end_row,
9831 scroll_position.y,
9832 scroll_position.y + height_in_lines,
9833 &line_layouts,
9834 line_height,
9835 scroll_position,
9836 scroll_pixel_position,
9837 newest_selection_head,
9838 editor_width,
9839 style,
9840 window,
9841 cx,
9842 )
9843 })
9844 .unzip();
9845
9846 let mut inline_diagnostics = self.layout_inline_diagnostics(
9847 &line_layouts,
9848 &crease_trailers,
9849 &row_block_types,
9850 content_origin,
9851 scroll_position,
9852 scroll_pixel_position,
9853 edit_prediction_popover_origin,
9854 start_row,
9855 end_row,
9856 line_height,
9857 em_width,
9858 style,
9859 window,
9860 cx,
9861 );
9862
9863 let mut inline_blame_layout = None;
9864 let mut inline_code_actions = None;
9865 if let Some(newest_selection_head) = newest_selection_head {
9866 let display_row = newest_selection_head.row();
9867 if (start_row..end_row).contains(&display_row)
9868 && !row_block_types.contains_key(&display_row)
9869 {
9870 inline_code_actions = self.layout_inline_code_actions(
9871 newest_selection_head,
9872 content_origin,
9873 scroll_position,
9874 scroll_pixel_position,
9875 line_height,
9876 &snapshot,
9877 window,
9878 cx,
9879 );
9880
9881 let line_ix = display_row.minus(start_row) as usize;
9882 if let (Some(row_info), Some(line_layout), Some(crease_trailer)) = (
9883 row_infos.get(line_ix),
9884 line_layouts.get(line_ix),
9885 crease_trailers.get(line_ix),
9886 ) {
9887 let crease_trailer_layout = crease_trailer.as_ref();
9888 if let Some(layout) = self.layout_inline_blame(
9889 display_row,
9890 row_info,
9891 line_layout,
9892 crease_trailer_layout,
9893 em_width,
9894 content_origin,
9895 scroll_position,
9896 scroll_pixel_position,
9897 line_height,
9898 window,
9899 cx,
9900 ) {
9901 inline_blame_layout = Some(layout);
9902 // Blame overrides inline diagnostics
9903 inline_diagnostics.remove(&display_row);
9904 }
9905 } else {
9906 log::error!(
9907 "bug: line_ix {} is out of bounds - row_infos.len(): {}, \
9908 line_layouts.len(): {}, \
9909 crease_trailers.len(): {}",
9910 line_ix,
9911 row_infos.len(),
9912 line_layouts.len(),
9913 crease_trailers.len(),
9914 );
9915 }
9916 }
9917 }
9918
9919 let blamed_display_rows = self.layout_blame_entries(
9920 &row_infos,
9921 em_width,
9922 scroll_position,
9923 line_height,
9924 &gutter_hitbox,
9925 gutter_dimensions.git_blame_entries_width,
9926 window,
9927 cx,
9928 );
9929
9930 let line_elements = self.prepaint_lines(
9931 start_row,
9932 &mut line_layouts,
9933 line_height,
9934 scroll_position,
9935 scroll_pixel_position,
9936 content_origin,
9937 window,
9938 cx,
9939 );
9940
9941 window.with_element_namespace("blocks", |window| {
9942 self.layout_blocks(
9943 &mut blocks,
9944 &hitbox,
9945 line_height,
9946 scroll_position,
9947 scroll_pixel_position,
9948 window,
9949 cx,
9950 );
9951 });
9952
9953 let cursors = self.collect_cursors(&snapshot, cx);
9954 let visible_row_range = start_row..end_row;
9955 let non_visible_cursors = cursors
9956 .iter()
9957 .any(|c| !visible_row_range.contains(&c.0.row()));
9958
9959 let visible_cursors = self.layout_visible_cursors(
9960 &snapshot,
9961 &selections,
9962 &row_block_types,
9963 start_row..end_row,
9964 &line_layouts,
9965 &text_hitbox,
9966 content_origin,
9967 scroll_position,
9968 scroll_pixel_position,
9969 line_height,
9970 em_width,
9971 em_advance,
9972 autoscroll_containing_element,
9973 window,
9974 cx,
9975 );
9976
9977 let scrollbars_layout = self.layout_scrollbars(
9978 &snapshot,
9979 &scrollbar_layout_information,
9980 content_offset,
9981 scroll_position,
9982 non_visible_cursors,
9983 right_margin,
9984 editor_width,
9985 window,
9986 cx,
9987 );
9988
9989 let gutter_settings = EditorSettings::get_global(cx).gutter;
9990
9991 let context_menu_layout =
9992 if let Some(newest_selection_head) = newest_selection_head {
9993 let newest_selection_point =
9994 newest_selection_head.to_point(&snapshot.display_snapshot);
9995 if (start_row..end_row).contains(&newest_selection_head.row()) {
9996 self.layout_cursor_popovers(
9997 line_height,
9998 &text_hitbox,
9999 content_origin,
10000 right_margin,
10001 start_row,
10002 scroll_pixel_position,
10003 &line_layouts,
10004 newest_selection_head,
10005 newest_selection_point,
10006 style,
10007 window,
10008 cx,
10009 )
10010 } else {
10011 None
10012 }
10013 } else {
10014 None
10015 };
10016
10017 self.layout_gutter_menu(
10018 line_height,
10019 &text_hitbox,
10020 content_origin,
10021 right_margin,
10022 scroll_pixel_position,
10023 gutter_dimensions.width - gutter_dimensions.left_padding,
10024 window,
10025 cx,
10026 );
10027
10028 let test_indicators = if gutter_settings.runnables {
10029 self.layout_run_indicators(
10030 line_height,
10031 start_row..end_row,
10032 &row_infos,
10033 scroll_position,
10034 &gutter_dimensions,
10035 &gutter_hitbox,
10036 &display_hunks,
10037 &snapshot,
10038 &mut breakpoint_rows,
10039 window,
10040 cx,
10041 )
10042 } else {
10043 Vec::new()
10044 };
10045
10046 let show_breakpoints = snapshot
10047 .show_breakpoints
10048 .unwrap_or(gutter_settings.breakpoints);
10049 let breakpoints = if show_breakpoints {
10050 self.layout_breakpoints(
10051 line_height,
10052 start_row..end_row,
10053 scroll_position,
10054 &gutter_dimensions,
10055 &gutter_hitbox,
10056 &display_hunks,
10057 &snapshot,
10058 breakpoint_rows,
10059 &row_infos,
10060 window,
10061 cx,
10062 )
10063 } else {
10064 Vec::new()
10065 };
10066
10067 self.layout_signature_help(
10068 &hitbox,
10069 content_origin,
10070 scroll_pixel_position,
10071 newest_selection_head,
10072 start_row,
10073 &line_layouts,
10074 line_height,
10075 em_width,
10076 context_menu_layout,
10077 window,
10078 cx,
10079 );
10080
10081 if !cx.has_active_drag() {
10082 self.layout_hover_popovers(
10083 &snapshot,
10084 &hitbox,
10085 start_row..end_row,
10086 content_origin,
10087 scroll_pixel_position,
10088 &line_layouts,
10089 line_height,
10090 em_width,
10091 context_menu_layout,
10092 window,
10093 cx,
10094 );
10095
10096 self.layout_blame_popover(&snapshot, &hitbox, line_height, window, cx);
10097 }
10098
10099 let mouse_context_menu = self.layout_mouse_context_menu(
10100 &snapshot,
10101 start_row..end_row,
10102 content_origin,
10103 window,
10104 cx,
10105 );
10106
10107 window.with_element_namespace("crease_toggles", |window| {
10108 self.prepaint_crease_toggles(
10109 &mut crease_toggles,
10110 line_height,
10111 &gutter_dimensions,
10112 gutter_settings,
10113 scroll_pixel_position,
10114 &gutter_hitbox,
10115 window,
10116 cx,
10117 )
10118 });
10119
10120 window.with_element_namespace("expand_toggles", |window| {
10121 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
10122 });
10123
10124 let wrap_guides = self.layout_wrap_guides(
10125 em_advance,
10126 scroll_position,
10127 content_origin,
10128 scrollbars_layout.as_ref(),
10129 vertical_scrollbar_width,
10130 &hitbox,
10131 window,
10132 cx,
10133 );
10134
10135 let minimap = window.with_element_namespace("minimap", |window| {
10136 self.layout_minimap(
10137 &snapshot,
10138 minimap_width,
10139 scroll_position,
10140 &scrollbar_layout_information,
10141 scrollbars_layout.as_ref(),
10142 window,
10143 cx,
10144 )
10145 });
10146
10147 let invisible_symbol_font_size = font_size / 2.;
10148 let whitespace_map = &self
10149 .editor
10150 .read(cx)
10151 .buffer
10152 .read(cx)
10153 .language_settings(cx)
10154 .whitespace_map;
10155
10156 let tab_char = whitespace_map.tab.clone();
10157 let tab_len = tab_char.len();
10158 let tab_invisible = window.text_system().shape_line(
10159 tab_char,
10160 invisible_symbol_font_size,
10161 &[TextRun {
10162 len: tab_len,
10163 font: self.style.text.font(),
10164 color: cx.theme().colors().editor_invisible,
10165 ..Default::default()
10166 }],
10167 None,
10168 );
10169
10170 let space_char = whitespace_map.space.clone();
10171 let space_len = space_char.len();
10172 let space_invisible = window.text_system().shape_line(
10173 space_char,
10174 invisible_symbol_font_size,
10175 &[TextRun {
10176 len: space_len,
10177 font: self.style.text.font(),
10178 color: cx.theme().colors().editor_invisible,
10179 ..Default::default()
10180 }],
10181 None,
10182 );
10183
10184 let mode = snapshot.mode.clone();
10185
10186 let (diff_hunk_controls, diff_hunk_control_bounds) = if is_read_only {
10187 (vec![], vec![])
10188 } else {
10189 self.layout_diff_hunk_controls(
10190 start_row..end_row,
10191 &row_infos,
10192 &text_hitbox,
10193 newest_selection_head,
10194 line_height,
10195 right_margin,
10196 scroll_pixel_position,
10197 &display_hunks,
10198 &highlighted_rows,
10199 self.editor.clone(),
10200 window,
10201 cx,
10202 )
10203 };
10204
10205 let position_map = Rc::new(PositionMap {
10206 size: bounds.size,
10207 visible_row_range,
10208 scroll_position,
10209 scroll_pixel_position,
10210 scroll_max,
10211 line_layouts,
10212 line_height,
10213 em_width,
10214 em_advance,
10215 snapshot,
10216 gutter_hitbox: gutter_hitbox.clone(),
10217 text_hitbox: text_hitbox.clone(),
10218 inline_blame_bounds: inline_blame_layout
10219 .as_ref()
10220 .map(|layout| (layout.bounds, layout.buffer_id, layout.entry.clone())),
10221 display_hunks: display_hunks.clone(),
10222 diff_hunk_control_bounds,
10223 });
10224
10225 self.editor.update(cx, |editor, _| {
10226 editor.last_position_map = Some(position_map.clone())
10227 });
10228
10229 EditorLayout {
10230 mode,
10231 position_map,
10232 visible_display_row_range: start_row..end_row,
10233 wrap_guides,
10234 indent_guides,
10235 hitbox,
10236 gutter_hitbox,
10237 display_hunks,
10238 content_origin,
10239 scrollbars_layout,
10240 minimap,
10241 active_rows,
10242 highlighted_rows,
10243 highlighted_ranges,
10244 highlighted_gutter_ranges,
10245 redacted_ranges,
10246 document_colors,
10247 line_elements,
10248 line_numbers,
10249 blamed_display_rows,
10250 inline_diagnostics,
10251 inline_blame_layout,
10252 inline_code_actions,
10253 blocks,
10254 cursors,
10255 visible_cursors,
10256 selections,
10257 edit_prediction_popover,
10258 diff_hunk_controls,
10259 mouse_context_menu,
10260 test_indicators,
10261 breakpoints,
10262 crease_toggles,
10263 crease_trailers,
10264 tab_invisible,
10265 space_invisible,
10266 sticky_buffer_header,
10267 sticky_headers,
10268 expand_toggles,
10269 }
10270 })
10271 })
10272 })
10273 }
10274
10275 fn paint(
10276 &mut self,
10277 _: Option<&GlobalElementId>,
10278 _inspector_id: Option<&gpui::InspectorElementId>,
10279 bounds: Bounds<gpui::Pixels>,
10280 _: &mut Self::RequestLayoutState,
10281 layout: &mut Self::PrepaintState,
10282 window: &mut Window,
10283 cx: &mut App,
10284 ) {
10285 if !layout.mode.is_minimap() {
10286 let focus_handle = self.editor.focus_handle(cx);
10287 let key_context = self
10288 .editor
10289 .update(cx, |editor, cx| editor.key_context(window, cx));
10290
10291 window.set_key_context(key_context);
10292 window.handle_input(
10293 &focus_handle,
10294 ElementInputHandler::new(bounds, self.editor.clone()),
10295 cx,
10296 );
10297 self.register_actions(window, cx);
10298 self.register_key_listeners(window, cx, layout);
10299 }
10300
10301 let text_style = TextStyleRefinement {
10302 font_size: Some(self.style.text.font_size),
10303 line_height: Some(self.style.text.line_height),
10304 ..Default::default()
10305 };
10306 let rem_size = self.rem_size(cx);
10307 window.with_rem_size(rem_size, |window| {
10308 window.with_text_style(Some(text_style), |window| {
10309 window.with_content_mask(Some(ContentMask { bounds }), |window| {
10310 self.paint_mouse_listeners(layout, window, cx);
10311 self.paint_background(layout, window, cx);
10312 self.paint_indent_guides(layout, window, cx);
10313
10314 if layout.gutter_hitbox.size.width > Pixels::ZERO {
10315 self.paint_blamed_display_rows(layout, window, cx);
10316 self.paint_line_numbers(layout, window, cx);
10317 }
10318
10319 self.paint_text(layout, window, cx);
10320
10321 if layout.gutter_hitbox.size.width > Pixels::ZERO {
10322 self.paint_gutter_highlights(layout, window, cx);
10323 self.paint_gutter_indicators(layout, window, cx);
10324 }
10325
10326 if !layout.blocks.is_empty() {
10327 window.with_element_namespace("blocks", |window| {
10328 self.paint_blocks(layout, window, cx);
10329 });
10330 }
10331
10332 window.with_element_namespace("blocks", |window| {
10333 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
10334 sticky_header.paint(window, cx)
10335 }
10336 });
10337
10338 self.paint_sticky_headers(layout, window, cx);
10339 self.paint_minimap(layout, window, cx);
10340 self.paint_scrollbars(layout, window, cx);
10341 self.paint_edit_prediction_popover(layout, window, cx);
10342 self.paint_mouse_context_menu(layout, window, cx);
10343 });
10344 })
10345 })
10346 }
10347}
10348
10349pub(super) fn gutter_bounds(
10350 editor_bounds: Bounds<Pixels>,
10351 gutter_dimensions: GutterDimensions,
10352) -> Bounds<Pixels> {
10353 Bounds {
10354 origin: editor_bounds.origin,
10355 size: size(gutter_dimensions.width, editor_bounds.size.height),
10356 }
10357}
10358
10359#[derive(Clone, Copy)]
10360struct ContextMenuLayout {
10361 y_flipped: bool,
10362 bounds: Bounds<Pixels>,
10363}
10364
10365/// Holds information required for layouting the editor scrollbars.
10366struct ScrollbarLayoutInformation {
10367 /// The bounds of the editor area (excluding the content offset).
10368 editor_bounds: Bounds<Pixels>,
10369 /// The available range to scroll within the document.
10370 scroll_range: Size<Pixels>,
10371 /// The space available for one glyph in the editor.
10372 glyph_grid_cell: Size<Pixels>,
10373}
10374
10375impl ScrollbarLayoutInformation {
10376 pub fn new(
10377 editor_bounds: Bounds<Pixels>,
10378 glyph_grid_cell: Size<Pixels>,
10379 document_size: Size<Pixels>,
10380 longest_line_blame_width: Pixels,
10381 settings: &EditorSettings,
10382 ) -> Self {
10383 let vertical_overscroll = match settings.scroll_beyond_last_line {
10384 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
10385 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
10386 ScrollBeyondLastLine::VerticalScrollMargin => {
10387 (1.0 + settings.vertical_scroll_margin) as f32 * glyph_grid_cell.height
10388 }
10389 };
10390
10391 let overscroll = size(longest_line_blame_width, vertical_overscroll);
10392
10393 ScrollbarLayoutInformation {
10394 editor_bounds,
10395 scroll_range: document_size + overscroll,
10396 glyph_grid_cell,
10397 }
10398 }
10399}
10400
10401impl IntoElement for EditorElement {
10402 type Element = Self;
10403
10404 fn into_element(self) -> Self::Element {
10405 self
10406 }
10407}
10408
10409pub struct EditorLayout {
10410 position_map: Rc<PositionMap>,
10411 hitbox: Hitbox,
10412 gutter_hitbox: Hitbox,
10413 content_origin: gpui::Point<Pixels>,
10414 scrollbars_layout: Option<EditorScrollbars>,
10415 minimap: Option<MinimapLayout>,
10416 mode: EditorMode,
10417 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
10418 indent_guides: Option<Vec<IndentGuideLayout>>,
10419 visible_display_row_range: Range<DisplayRow>,
10420 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
10421 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
10422 line_elements: SmallVec<[AnyElement; 1]>,
10423 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
10424 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
10425 blamed_display_rows: Option<Vec<AnyElement>>,
10426 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
10427 inline_blame_layout: Option<InlineBlameLayout>,
10428 inline_code_actions: Option<AnyElement>,
10429 blocks: Vec<BlockLayout>,
10430 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
10431 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
10432 redacted_ranges: Vec<Range<DisplayPoint>>,
10433 cursors: Vec<(DisplayPoint, Hsla)>,
10434 visible_cursors: Vec<CursorLayout>,
10435 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
10436 test_indicators: Vec<AnyElement>,
10437 breakpoints: Vec<AnyElement>,
10438 crease_toggles: Vec<Option<AnyElement>>,
10439 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
10440 diff_hunk_controls: Vec<AnyElement>,
10441 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
10442 edit_prediction_popover: Option<AnyElement>,
10443 mouse_context_menu: Option<AnyElement>,
10444 tab_invisible: ShapedLine,
10445 space_invisible: ShapedLine,
10446 sticky_buffer_header: Option<AnyElement>,
10447 sticky_headers: Option<StickyHeaders>,
10448 document_colors: Option<(DocumentColorsRenderMode, Vec<(Range<DisplayPoint>, Hsla)>)>,
10449}
10450
10451struct StickyHeaders {
10452 lines: Vec<StickyHeaderLine>,
10453 gutter_background: Hsla,
10454 content_background: Hsla,
10455 gutter_right_padding: Pixels,
10456}
10457
10458struct StickyHeaderLine {
10459 row: DisplayRow,
10460 offset: Pixels,
10461 line: LineWithInvisibles,
10462 line_number: Option<ShapedLine>,
10463 elements: SmallVec<[AnyElement; 1]>,
10464 available_text_width: Pixels,
10465 target_anchor: Anchor,
10466 hitbox: Hitbox,
10467}
10468
10469impl EditorLayout {
10470 fn line_end_overshoot(&self) -> Pixels {
10471 0.15 * self.position_map.line_height
10472 }
10473}
10474
10475impl StickyHeaders {
10476 fn paint(
10477 &mut self,
10478 layout: &mut EditorLayout,
10479 whitespace_setting: ShowWhitespaceSetting,
10480 window: &mut Window,
10481 cx: &mut App,
10482 ) {
10483 let line_height = layout.position_map.line_height;
10484
10485 for line in self.lines.iter_mut().rev() {
10486 window.paint_layer(
10487 Bounds::new(
10488 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
10489 size(line.hitbox.size.width, line_height),
10490 ),
10491 |window| {
10492 let gutter_bounds = Bounds::new(
10493 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
10494 size(layout.gutter_hitbox.size.width, line_height),
10495 );
10496 window.paint_quad(fill(gutter_bounds, self.gutter_background));
10497
10498 let text_bounds = Bounds::new(
10499 layout.position_map.text_hitbox.origin + point(Pixels::ZERO, line.offset),
10500 size(line.available_text_width, line_height),
10501 );
10502 window.paint_quad(fill(text_bounds, self.content_background));
10503
10504 if line.hitbox.is_hovered(window) {
10505 let hover_overlay = cx.theme().colors().panel_overlay_hover;
10506 window.paint_quad(fill(gutter_bounds, hover_overlay));
10507 window.paint_quad(fill(text_bounds, hover_overlay));
10508 }
10509
10510 line.paint(
10511 layout,
10512 self.gutter_right_padding,
10513 line.available_text_width,
10514 layout.content_origin,
10515 line_height,
10516 whitespace_setting,
10517 window,
10518 cx,
10519 );
10520 },
10521 );
10522
10523 window.set_cursor_style(CursorStyle::PointingHand, &line.hitbox);
10524 }
10525 }
10526}
10527
10528impl StickyHeaderLine {
10529 fn new(
10530 row: DisplayRow,
10531 offset: Pixels,
10532 mut line: LineWithInvisibles,
10533 line_number: Option<ShapedLine>,
10534 target_anchor: Anchor,
10535 line_height: Pixels,
10536 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
10537 content_origin: gpui::Point<Pixels>,
10538 gutter_hitbox: &Hitbox,
10539 text_hitbox: &Hitbox,
10540 window: &mut Window,
10541 cx: &mut App,
10542 ) -> Self {
10543 let mut elements = SmallVec::<[AnyElement; 1]>::new();
10544 line.prepaint_with_custom_offset(
10545 line_height,
10546 scroll_pixel_position,
10547 content_origin,
10548 offset,
10549 &mut elements,
10550 window,
10551 cx,
10552 );
10553
10554 let hitbox_bounds = Bounds::new(
10555 gutter_hitbox.origin + point(Pixels::ZERO, offset),
10556 size(text_hitbox.right() - gutter_hitbox.left(), line_height),
10557 );
10558 let available_text_width =
10559 (hitbox_bounds.size.width - gutter_hitbox.size.width).max(Pixels::ZERO);
10560
10561 Self {
10562 row,
10563 offset,
10564 line,
10565 line_number,
10566 elements,
10567 available_text_width,
10568 target_anchor,
10569 hitbox: window.insert_hitbox(hitbox_bounds, HitboxBehavior::BlockMouseExceptScroll),
10570 }
10571 }
10572
10573 fn paint(
10574 &mut self,
10575 layout: &EditorLayout,
10576 gutter_right_padding: Pixels,
10577 available_text_width: Pixels,
10578 content_origin: gpui::Point<Pixels>,
10579 line_height: Pixels,
10580 whitespace_setting: ShowWhitespaceSetting,
10581 window: &mut Window,
10582 cx: &mut App,
10583 ) {
10584 window.with_content_mask(
10585 Some(ContentMask {
10586 bounds: Bounds::new(
10587 layout.position_map.text_hitbox.bounds.origin
10588 + point(Pixels::ZERO, self.offset),
10589 size(available_text_width, line_height),
10590 ),
10591 }),
10592 |window| {
10593 self.line.draw_with_custom_offset(
10594 layout,
10595 self.row,
10596 content_origin,
10597 self.offset,
10598 whitespace_setting,
10599 &[],
10600 window,
10601 cx,
10602 );
10603 for element in &mut self.elements {
10604 element.paint(window, cx);
10605 }
10606 },
10607 );
10608
10609 if let Some(line_number) = &self.line_number {
10610 let gutter_origin = layout.gutter_hitbox.origin + point(Pixels::ZERO, self.offset);
10611 let gutter_width = layout.gutter_hitbox.size.width;
10612 let origin = point(
10613 gutter_origin.x + gutter_width - gutter_right_padding - line_number.width,
10614 gutter_origin.y,
10615 );
10616 line_number.paint(origin, line_height, window, cx).log_err();
10617 }
10618 }
10619}
10620
10621#[derive(Debug)]
10622struct LineNumberSegment {
10623 shaped_line: ShapedLine,
10624 hitbox: Option<Hitbox>,
10625}
10626
10627#[derive(Debug)]
10628struct LineNumberLayout {
10629 segments: SmallVec<[LineNumberSegment; 1]>,
10630}
10631
10632struct ColoredRange<T> {
10633 start: T,
10634 end: T,
10635 color: Hsla,
10636}
10637
10638impl Along for ScrollbarAxes {
10639 type Unit = bool;
10640
10641 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
10642 match axis {
10643 ScrollbarAxis::Horizontal => self.horizontal,
10644 ScrollbarAxis::Vertical => self.vertical,
10645 }
10646 }
10647
10648 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
10649 match axis {
10650 ScrollbarAxis::Horizontal => ScrollbarAxes {
10651 horizontal: f(self.horizontal),
10652 vertical: self.vertical,
10653 },
10654 ScrollbarAxis::Vertical => ScrollbarAxes {
10655 horizontal: self.horizontal,
10656 vertical: f(self.vertical),
10657 },
10658 }
10659 }
10660}
10661
10662#[derive(Clone)]
10663struct EditorScrollbars {
10664 pub vertical: Option<ScrollbarLayout>,
10665 pub horizontal: Option<ScrollbarLayout>,
10666 pub visible: bool,
10667}
10668
10669impl EditorScrollbars {
10670 pub fn from_scrollbar_axes(
10671 show_scrollbar: ScrollbarAxes,
10672 layout_information: &ScrollbarLayoutInformation,
10673 content_offset: gpui::Point<Pixels>,
10674 scroll_position: gpui::Point<f64>,
10675 scrollbar_width: Pixels,
10676 right_margin: Pixels,
10677 editor_width: Pixels,
10678 show_scrollbars: bool,
10679 scrollbar_state: Option<&ActiveScrollbarState>,
10680 window: &mut Window,
10681 ) -> Self {
10682 let ScrollbarLayoutInformation {
10683 editor_bounds,
10684 scroll_range,
10685 glyph_grid_cell,
10686 } = layout_information;
10687
10688 let viewport_size = size(editor_width, editor_bounds.size.height);
10689
10690 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
10691 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
10692 Corner::BottomLeft,
10693 editor_bounds.bottom_left(),
10694 size(
10695 // The horizontal viewport size differs from the space available for the
10696 // horizontal scrollbar, so we have to manually stitch it together here.
10697 editor_bounds.size.width - right_margin,
10698 scrollbar_width,
10699 ),
10700 ),
10701 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
10702 Corner::TopRight,
10703 editor_bounds.top_right(),
10704 size(scrollbar_width, viewport_size.height),
10705 ),
10706 };
10707
10708 let mut create_scrollbar_layout = |axis| {
10709 let viewport_size = viewport_size.along(axis);
10710 let scroll_range = scroll_range.along(axis);
10711
10712 // We always want a vertical scrollbar track for scrollbar diagnostic visibility.
10713 (show_scrollbar.along(axis)
10714 && (axis == ScrollbarAxis::Vertical || scroll_range > viewport_size))
10715 .then(|| {
10716 ScrollbarLayout::new(
10717 window.insert_hitbox(scrollbar_bounds_for(axis), HitboxBehavior::Normal),
10718 viewport_size,
10719 scroll_range,
10720 glyph_grid_cell.along(axis),
10721 content_offset.along(axis),
10722 scroll_position.along(axis),
10723 show_scrollbars,
10724 axis,
10725 )
10726 .with_thumb_state(
10727 scrollbar_state.and_then(|state| state.thumb_state_for_axis(axis)),
10728 )
10729 })
10730 };
10731
10732 Self {
10733 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
10734 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
10735 visible: show_scrollbars,
10736 }
10737 }
10738
10739 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
10740 [
10741 (&self.vertical, ScrollbarAxis::Vertical),
10742 (&self.horizontal, ScrollbarAxis::Horizontal),
10743 ]
10744 .into_iter()
10745 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
10746 }
10747
10748 /// Returns the currently hovered scrollbar axis, if any.
10749 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
10750 self.iter_scrollbars()
10751 .find(|s| s.0.hitbox.is_hovered(window))
10752 }
10753}
10754
10755#[derive(Clone)]
10756struct ScrollbarLayout {
10757 hitbox: Hitbox,
10758 visible_range: Range<ScrollOffset>,
10759 text_unit_size: Pixels,
10760 thumb_bounds: Option<Bounds<Pixels>>,
10761 thumb_state: ScrollbarThumbState,
10762}
10763
10764impl ScrollbarLayout {
10765 const BORDER_WIDTH: Pixels = px(1.0);
10766 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
10767 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
10768 const MIN_THUMB_SIZE: Pixels = px(25.0);
10769
10770 fn new(
10771 scrollbar_track_hitbox: Hitbox,
10772 viewport_size: Pixels,
10773 scroll_range: Pixels,
10774 glyph_space: Pixels,
10775 content_offset: Pixels,
10776 scroll_position: ScrollOffset,
10777 show_thumb: bool,
10778 axis: ScrollbarAxis,
10779 ) -> Self {
10780 let track_bounds = scrollbar_track_hitbox.bounds;
10781 // The length of the track available to the scrollbar thumb. We deliberately
10782 // exclude the content size here so that the thumb aligns with the content.
10783 let track_length = track_bounds.size.along(axis) - content_offset;
10784
10785 Self::new_with_hitbox_and_track_length(
10786 scrollbar_track_hitbox,
10787 track_length,
10788 viewport_size,
10789 scroll_range.into(),
10790 glyph_space,
10791 content_offset.into(),
10792 scroll_position,
10793 show_thumb,
10794 axis,
10795 )
10796 }
10797
10798 fn for_minimap(
10799 minimap_track_hitbox: Hitbox,
10800 visible_lines: f64,
10801 total_editor_lines: f64,
10802 minimap_line_height: Pixels,
10803 scroll_position: ScrollOffset,
10804 minimap_scroll_top: ScrollOffset,
10805 show_thumb: bool,
10806 ) -> Self {
10807 // The scrollbar thumb size is calculated as
10808 // (visible_content/total_content) Γ scrollbar_track_length.
10809 //
10810 // For the minimap's thumb layout, we leverage this by setting the
10811 // scrollbar track length to the entire document size (using minimap line
10812 // height). This creates a thumb that exactly represents the editor
10813 // viewport scaled to minimap proportions.
10814 //
10815 // We adjust the thumb position relative to `minimap_scroll_top` to
10816 // accommodate for the deliberately oversized track.
10817 //
10818 // This approach ensures that the minimap thumb accurately reflects the
10819 // editor's current scroll position whilst nicely synchronizing the minimap
10820 // thumb and scrollbar thumb.
10821 let scroll_range = total_editor_lines * f64::from(minimap_line_height);
10822 let viewport_size = visible_lines * f64::from(minimap_line_height);
10823
10824 let track_top_offset = -minimap_scroll_top * f64::from(minimap_line_height);
10825
10826 Self::new_with_hitbox_and_track_length(
10827 minimap_track_hitbox,
10828 Pixels::from(scroll_range),
10829 Pixels::from(viewport_size),
10830 scroll_range,
10831 minimap_line_height,
10832 track_top_offset,
10833 scroll_position,
10834 show_thumb,
10835 ScrollbarAxis::Vertical,
10836 )
10837 }
10838
10839 fn new_with_hitbox_and_track_length(
10840 scrollbar_track_hitbox: Hitbox,
10841 track_length: Pixels,
10842 viewport_size: Pixels,
10843 scroll_range: f64,
10844 glyph_space: Pixels,
10845 content_offset: ScrollOffset,
10846 scroll_position: ScrollOffset,
10847 show_thumb: bool,
10848 axis: ScrollbarAxis,
10849 ) -> Self {
10850 let text_units_per_page = viewport_size.to_f64() / glyph_space.to_f64();
10851 let visible_range = scroll_position..scroll_position + text_units_per_page;
10852 let total_text_units = scroll_range / glyph_space.to_f64();
10853
10854 let thumb_percentage = text_units_per_page / total_text_units;
10855 let thumb_size = Pixels::from(ScrollOffset::from(track_length) * thumb_percentage)
10856 .max(ScrollbarLayout::MIN_THUMB_SIZE)
10857 .min(track_length);
10858
10859 let text_unit_divisor = (total_text_units - text_units_per_page).max(0.);
10860
10861 let content_larger_than_viewport = text_unit_divisor > 0.;
10862
10863 let text_unit_size = if content_larger_than_viewport {
10864 Pixels::from(ScrollOffset::from(track_length - thumb_size) / text_unit_divisor)
10865 } else {
10866 glyph_space
10867 };
10868
10869 let thumb_bounds = (show_thumb && content_larger_than_viewport).then(|| {
10870 Self::thumb_bounds(
10871 &scrollbar_track_hitbox,
10872 content_offset,
10873 visible_range.start,
10874 text_unit_size,
10875 thumb_size,
10876 axis,
10877 )
10878 });
10879
10880 ScrollbarLayout {
10881 hitbox: scrollbar_track_hitbox,
10882 visible_range,
10883 text_unit_size,
10884 thumb_bounds,
10885 thumb_state: Default::default(),
10886 }
10887 }
10888
10889 fn with_thumb_state(self, thumb_state: Option<ScrollbarThumbState>) -> Self {
10890 if let Some(thumb_state) = thumb_state {
10891 Self {
10892 thumb_state,
10893 ..self
10894 }
10895 } else {
10896 self
10897 }
10898 }
10899
10900 fn thumb_bounds(
10901 scrollbar_track: &Hitbox,
10902 content_offset: f64,
10903 visible_range_start: f64,
10904 text_unit_size: Pixels,
10905 thumb_size: Pixels,
10906 axis: ScrollbarAxis,
10907 ) -> Bounds<Pixels> {
10908 let thumb_origin = scrollbar_track.origin.apply_along(axis, |origin| {
10909 origin
10910 + Pixels::from(
10911 content_offset + visible_range_start * ScrollOffset::from(text_unit_size),
10912 )
10913 });
10914 Bounds::new(
10915 thumb_origin,
10916 scrollbar_track.size.apply_along(axis, |_| thumb_size),
10917 )
10918 }
10919
10920 fn thumb_hovered(&self, position: &gpui::Point<Pixels>) -> bool {
10921 self.thumb_bounds
10922 .is_some_and(|bounds| bounds.contains(position))
10923 }
10924
10925 fn marker_quads_for_ranges(
10926 &self,
10927 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
10928 column: Option<usize>,
10929 ) -> Vec<PaintQuad> {
10930 struct MinMax {
10931 min: Pixels,
10932 max: Pixels,
10933 }
10934 let (x_range, height_limit) = if let Some(column) = column {
10935 let column_width = ((self.hitbox.size.width - Self::BORDER_WIDTH) / 3.0).floor();
10936 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
10937 let end = start + column_width;
10938 (
10939 Range { start, end },
10940 MinMax {
10941 min: Self::MIN_MARKER_HEIGHT,
10942 max: px(f32::MAX),
10943 },
10944 )
10945 } else {
10946 (
10947 Range {
10948 start: Self::BORDER_WIDTH,
10949 end: self.hitbox.size.width,
10950 },
10951 MinMax {
10952 min: Self::LINE_MARKER_HEIGHT,
10953 max: Self::LINE_MARKER_HEIGHT,
10954 },
10955 )
10956 };
10957
10958 let row_to_y = |row: DisplayRow| row.as_f64() as f32 * self.text_unit_size;
10959 let mut pixel_ranges = row_ranges
10960 .into_iter()
10961 .map(|range| {
10962 let start_y = row_to_y(range.start);
10963 let end_y = row_to_y(range.end)
10964 + self
10965 .text_unit_size
10966 .max(height_limit.min)
10967 .min(height_limit.max);
10968 ColoredRange {
10969 start: start_y,
10970 end: end_y,
10971 color: range.color,
10972 }
10973 })
10974 .peekable();
10975
10976 let mut quads = Vec::new();
10977 while let Some(mut pixel_range) = pixel_ranges.next() {
10978 while let Some(next_pixel_range) = pixel_ranges.peek() {
10979 if pixel_range.end >= next_pixel_range.start - px(1.0)
10980 && pixel_range.color == next_pixel_range.color
10981 {
10982 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
10983 pixel_ranges.next();
10984 } else {
10985 break;
10986 }
10987 }
10988
10989 let bounds = Bounds::from_corners(
10990 point(x_range.start, pixel_range.start),
10991 point(x_range.end, pixel_range.end),
10992 );
10993 quads.push(quad(
10994 bounds,
10995 Corners::default(),
10996 pixel_range.color,
10997 Edges::default(),
10998 Hsla::transparent_black(),
10999 BorderStyle::default(),
11000 ));
11001 }
11002
11003 quads
11004 }
11005}
11006
11007struct MinimapLayout {
11008 pub minimap: AnyElement,
11009 pub thumb_layout: ScrollbarLayout,
11010 pub minimap_scroll_top: ScrollOffset,
11011 pub minimap_line_height: Pixels,
11012 pub thumb_border_style: MinimapThumbBorder,
11013 pub max_scroll_top: ScrollOffset,
11014}
11015
11016impl MinimapLayout {
11017 /// The minimum width of the minimap in columns. If the minimap is smaller than this, it will be hidden.
11018 const MINIMAP_MIN_WIDTH_COLUMNS: f32 = 20.;
11019 /// The minimap width as a percentage of the editor width.
11020 const MINIMAP_WIDTH_PCT: f32 = 0.15;
11021 /// Calculates the scroll top offset the minimap editor has to have based on the
11022 /// current scroll progress.
11023 fn calculate_minimap_top_offset(
11024 document_lines: f64,
11025 visible_editor_lines: f64,
11026 visible_minimap_lines: f64,
11027 scroll_position: f64,
11028 ) -> ScrollOffset {
11029 let non_visible_document_lines = (document_lines - visible_editor_lines).max(0.);
11030 if non_visible_document_lines == 0. {
11031 0.
11032 } else {
11033 let scroll_percentage = (scroll_position / non_visible_document_lines).clamp(0., 1.);
11034 scroll_percentage * (document_lines - visible_minimap_lines).max(0.)
11035 }
11036 }
11037}
11038
11039struct CreaseTrailerLayout {
11040 element: AnyElement,
11041 bounds: Bounds<Pixels>,
11042}
11043
11044pub(crate) struct PositionMap {
11045 pub size: Size<Pixels>,
11046 pub line_height: Pixels,
11047 pub scroll_position: gpui::Point<ScrollOffset>,
11048 pub scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
11049 pub scroll_max: gpui::Point<ScrollOffset>,
11050 pub em_width: Pixels,
11051 pub em_advance: Pixels,
11052 pub visible_row_range: Range<DisplayRow>,
11053 pub line_layouts: Vec<LineWithInvisibles>,
11054 pub snapshot: EditorSnapshot,
11055 pub text_hitbox: Hitbox,
11056 pub gutter_hitbox: Hitbox,
11057 pub inline_blame_bounds: Option<(Bounds<Pixels>, BufferId, BlameEntry)>,
11058 pub display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
11059 pub diff_hunk_control_bounds: Vec<(DisplayRow, Bounds<Pixels>)>,
11060}
11061
11062#[derive(Debug, Copy, Clone)]
11063pub struct PointForPosition {
11064 pub previous_valid: DisplayPoint,
11065 pub next_valid: DisplayPoint,
11066 pub exact_unclipped: DisplayPoint,
11067 pub column_overshoot_after_line_end: u32,
11068}
11069
11070impl PointForPosition {
11071 pub fn as_valid(&self) -> Option<DisplayPoint> {
11072 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
11073 Some(self.previous_valid)
11074 } else {
11075 None
11076 }
11077 }
11078
11079 pub fn intersects_selection(&self, selection: &Selection<DisplayPoint>) -> bool {
11080 let Some(valid_point) = self.as_valid() else {
11081 return false;
11082 };
11083 let range = selection.range();
11084
11085 let candidate_row = valid_point.row();
11086 let candidate_col = valid_point.column();
11087
11088 let start_row = range.start.row();
11089 let start_col = range.start.column();
11090 let end_row = range.end.row();
11091 let end_col = range.end.column();
11092
11093 if candidate_row < start_row || candidate_row > end_row {
11094 false
11095 } else if start_row == end_row {
11096 candidate_col >= start_col && candidate_col < end_col
11097 } else if candidate_row == start_row {
11098 candidate_col >= start_col
11099 } else if candidate_row == end_row {
11100 candidate_col < end_col
11101 } else {
11102 true
11103 }
11104 }
11105}
11106
11107impl PositionMap {
11108 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
11109 let text_bounds = self.text_hitbox.bounds;
11110 let scroll_position = self.snapshot.scroll_position();
11111 let position = position - text_bounds.origin;
11112 let y = position.y.max(px(0.)).min(self.size.height);
11113 let x = position.x + (scroll_position.x as f32 * self.em_advance);
11114 let row = ((y / self.line_height) as f64 + scroll_position.y) as u32;
11115
11116 let (column, x_overshoot_after_line_end) = if let Some(line) = self
11117 .line_layouts
11118 .get(row as usize - scroll_position.y as usize)
11119 {
11120 if let Some(ix) = line.index_for_x(x) {
11121 (ix as u32, px(0.))
11122 } else {
11123 (line.len as u32, px(0.).max(x - line.width))
11124 }
11125 } else {
11126 (0, x)
11127 };
11128
11129 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
11130 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
11131 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
11132
11133 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
11134 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
11135 PointForPosition {
11136 previous_valid,
11137 next_valid,
11138 exact_unclipped,
11139 column_overshoot_after_line_end,
11140 }
11141 }
11142}
11143
11144struct BlockLayout {
11145 id: BlockId,
11146 x_offset: Pixels,
11147 row: Option<DisplayRow>,
11148 element: AnyElement,
11149 available_space: Size<AvailableSpace>,
11150 style: BlockStyle,
11151 overlaps_gutter: bool,
11152 is_buffer_header: bool,
11153}
11154
11155pub fn layout_line(
11156 row: DisplayRow,
11157 snapshot: &EditorSnapshot,
11158 style: &EditorStyle,
11159 text_width: Pixels,
11160 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
11161 window: &mut Window,
11162 cx: &mut App,
11163) -> LineWithInvisibles {
11164 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
11165 LineWithInvisibles::from_chunks(
11166 chunks,
11167 style,
11168 MAX_LINE_LEN,
11169 1,
11170 &snapshot.mode,
11171 text_width,
11172 is_row_soft_wrapped,
11173 &[],
11174 window,
11175 cx,
11176 )
11177 .pop()
11178 .unwrap()
11179}
11180
11181#[derive(Debug)]
11182pub struct IndentGuideLayout {
11183 origin: gpui::Point<Pixels>,
11184 length: Pixels,
11185 single_indent_width: Pixels,
11186 depth: u32,
11187 active: bool,
11188 settings: IndentGuideSettings,
11189}
11190
11191pub struct CursorLayout {
11192 origin: gpui::Point<Pixels>,
11193 block_width: Pixels,
11194 line_height: Pixels,
11195 color: Hsla,
11196 shape: CursorShape,
11197 block_text: Option<ShapedLine>,
11198 cursor_name: Option<AnyElement>,
11199}
11200
11201#[derive(Debug)]
11202pub struct CursorName {
11203 string: SharedString,
11204 color: Hsla,
11205 is_top_row: bool,
11206}
11207
11208impl CursorLayout {
11209 pub fn new(
11210 origin: gpui::Point<Pixels>,
11211 block_width: Pixels,
11212 line_height: Pixels,
11213 color: Hsla,
11214 shape: CursorShape,
11215 block_text: Option<ShapedLine>,
11216 ) -> CursorLayout {
11217 CursorLayout {
11218 origin,
11219 block_width,
11220 line_height,
11221 color,
11222 shape,
11223 block_text,
11224 cursor_name: None,
11225 }
11226 }
11227
11228 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
11229 Bounds {
11230 origin: self.origin + origin,
11231 size: size(self.block_width, self.line_height),
11232 }
11233 }
11234
11235 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
11236 match self.shape {
11237 CursorShape::Bar => Bounds {
11238 origin: self.origin + origin,
11239 size: size(px(2.0), self.line_height),
11240 },
11241 CursorShape::Block | CursorShape::Hollow => Bounds {
11242 origin: self.origin + origin,
11243 size: size(self.block_width, self.line_height),
11244 },
11245 CursorShape::Underline => Bounds {
11246 origin: self.origin
11247 + origin
11248 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
11249 size: size(self.block_width, px(2.0)),
11250 },
11251 }
11252 }
11253
11254 pub fn layout(
11255 &mut self,
11256 origin: gpui::Point<Pixels>,
11257 cursor_name: Option<CursorName>,
11258 window: &mut Window,
11259 cx: &mut App,
11260 ) {
11261 if let Some(cursor_name) = cursor_name {
11262 let bounds = self.bounds(origin);
11263 let text_size = self.line_height / 1.5;
11264
11265 let name_origin = if cursor_name.is_top_row {
11266 point(bounds.right() - px(1.), bounds.top())
11267 } else {
11268 match self.shape {
11269 CursorShape::Bar => point(
11270 bounds.right() - px(2.),
11271 bounds.top() - text_size / 2. - px(1.),
11272 ),
11273 _ => point(
11274 bounds.right() - px(1.),
11275 bounds.top() - text_size / 2. - px(1.),
11276 ),
11277 }
11278 };
11279 let mut name_element = div()
11280 .bg(self.color)
11281 .text_size(text_size)
11282 .px_0p5()
11283 .line_height(text_size + px(2.))
11284 .text_color(cursor_name.color)
11285 .child(cursor_name.string)
11286 .into_any_element();
11287
11288 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
11289
11290 self.cursor_name = Some(name_element);
11291 }
11292 }
11293
11294 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
11295 let bounds = self.bounds(origin);
11296
11297 //Draw background or border quad
11298 let cursor = if matches!(self.shape, CursorShape::Hollow) {
11299 outline(bounds, self.color, BorderStyle::Solid)
11300 } else {
11301 fill(bounds, self.color)
11302 };
11303
11304 if let Some(name) = &mut self.cursor_name {
11305 name.paint(window, cx);
11306 }
11307
11308 window.paint_quad(cursor);
11309
11310 if let Some(block_text) = &self.block_text {
11311 block_text
11312 .paint(self.origin + origin, self.line_height, window, cx)
11313 .log_err();
11314 }
11315 }
11316
11317 pub fn shape(&self) -> CursorShape {
11318 self.shape
11319 }
11320}
11321
11322#[derive(Debug)]
11323pub struct HighlightedRange {
11324 pub start_y: Pixels,
11325 pub line_height: Pixels,
11326 pub lines: Vec<HighlightedRangeLine>,
11327 pub color: Hsla,
11328 pub corner_radius: Pixels,
11329}
11330
11331#[derive(Debug)]
11332pub struct HighlightedRangeLine {
11333 pub start_x: Pixels,
11334 pub end_x: Pixels,
11335}
11336
11337impl HighlightedRange {
11338 pub fn paint(&self, fill: bool, bounds: Bounds<Pixels>, window: &mut Window) {
11339 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
11340 self.paint_lines(self.start_y, &self.lines[0..1], fill, bounds, window);
11341 self.paint_lines(
11342 self.start_y + self.line_height,
11343 &self.lines[1..],
11344 fill,
11345 bounds,
11346 window,
11347 );
11348 } else {
11349 self.paint_lines(self.start_y, &self.lines, fill, bounds, window);
11350 }
11351 }
11352
11353 fn paint_lines(
11354 &self,
11355 start_y: Pixels,
11356 lines: &[HighlightedRangeLine],
11357 fill: bool,
11358 _bounds: Bounds<Pixels>,
11359 window: &mut Window,
11360 ) {
11361 if lines.is_empty() {
11362 return;
11363 }
11364
11365 let first_line = lines.first().unwrap();
11366 let last_line = lines.last().unwrap();
11367
11368 let first_top_left = point(first_line.start_x, start_y);
11369 let first_top_right = point(first_line.end_x, start_y);
11370
11371 let curve_height = point(Pixels::ZERO, self.corner_radius);
11372 let curve_width = |start_x: Pixels, end_x: Pixels| {
11373 let max = (end_x - start_x) / 2.;
11374 let width = if max < self.corner_radius {
11375 max
11376 } else {
11377 self.corner_radius
11378 };
11379
11380 point(width, Pixels::ZERO)
11381 };
11382
11383 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
11384 let mut builder = if fill {
11385 gpui::PathBuilder::fill()
11386 } else {
11387 gpui::PathBuilder::stroke(px(1.))
11388 };
11389 builder.move_to(first_top_right - top_curve_width);
11390 builder.curve_to(first_top_right + curve_height, first_top_right);
11391
11392 let mut iter = lines.iter().enumerate().peekable();
11393 while let Some((ix, line)) = iter.next() {
11394 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
11395
11396 if let Some((_, next_line)) = iter.peek() {
11397 let next_top_right = point(next_line.end_x, bottom_right.y);
11398
11399 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
11400 Ordering::Equal => {
11401 builder.line_to(bottom_right);
11402 }
11403 Ordering::Less => {
11404 let curve_width = curve_width(next_top_right.x, bottom_right.x);
11405 builder.line_to(bottom_right - curve_height);
11406 if self.corner_radius > Pixels::ZERO {
11407 builder.curve_to(bottom_right - curve_width, bottom_right);
11408 }
11409 builder.line_to(next_top_right + curve_width);
11410 if self.corner_radius > Pixels::ZERO {
11411 builder.curve_to(next_top_right + curve_height, next_top_right);
11412 }
11413 }
11414 Ordering::Greater => {
11415 let curve_width = curve_width(bottom_right.x, next_top_right.x);
11416 builder.line_to(bottom_right - curve_height);
11417 if self.corner_radius > Pixels::ZERO {
11418 builder.curve_to(bottom_right + curve_width, bottom_right);
11419 }
11420 builder.line_to(next_top_right - curve_width);
11421 if self.corner_radius > Pixels::ZERO {
11422 builder.curve_to(next_top_right + curve_height, next_top_right);
11423 }
11424 }
11425 }
11426 } else {
11427 let curve_width = curve_width(line.start_x, line.end_x);
11428 builder.line_to(bottom_right - curve_height);
11429 if self.corner_radius > Pixels::ZERO {
11430 builder.curve_to(bottom_right - curve_width, bottom_right);
11431 }
11432
11433 let bottom_left = point(line.start_x, bottom_right.y);
11434 builder.line_to(bottom_left + curve_width);
11435 if self.corner_radius > Pixels::ZERO {
11436 builder.curve_to(bottom_left - curve_height, bottom_left);
11437 }
11438 }
11439 }
11440
11441 if first_line.start_x > last_line.start_x {
11442 let curve_width = curve_width(last_line.start_x, first_line.start_x);
11443 let second_top_left = point(last_line.start_x, start_y + self.line_height);
11444 builder.line_to(second_top_left + curve_height);
11445 if self.corner_radius > Pixels::ZERO {
11446 builder.curve_to(second_top_left + curve_width, second_top_left);
11447 }
11448 let first_bottom_left = point(first_line.start_x, second_top_left.y);
11449 builder.line_to(first_bottom_left - curve_width);
11450 if self.corner_radius > Pixels::ZERO {
11451 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
11452 }
11453 }
11454
11455 builder.line_to(first_top_left + curve_height);
11456 if self.corner_radius > Pixels::ZERO {
11457 builder.curve_to(first_top_left + top_curve_width, first_top_left);
11458 }
11459 builder.line_to(first_top_right - top_curve_width);
11460
11461 if let Ok(path) = builder.build() {
11462 window.paint_path(path, self.color);
11463 }
11464 }
11465}
11466
11467pub(crate) struct StickyHeader {
11468 pub item: language::OutlineItem<Anchor>,
11469 pub sticky_row: DisplayRow,
11470 pub start_point: Point,
11471 pub offset: ScrollOffset,
11472}
11473
11474enum CursorPopoverType {
11475 CodeContextMenu,
11476 EditPrediction,
11477}
11478
11479pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
11480 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
11481}
11482
11483fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
11484 (delta.pow(1.2) / 300.0).into()
11485}
11486
11487pub fn register_action<T: Action>(
11488 editor: &Entity<Editor>,
11489 window: &mut Window,
11490 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
11491) {
11492 let editor = editor.clone();
11493 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
11494 let action = action.downcast_ref().unwrap();
11495 if phase == DispatchPhase::Bubble {
11496 editor.update(cx, |editor, cx| {
11497 listener(editor, action, window, cx);
11498 })
11499 }
11500 })
11501}
11502
11503fn compute_auto_height_layout(
11504 editor: &mut Editor,
11505 min_lines: usize,
11506 max_lines: Option<usize>,
11507 known_dimensions: Size<Option<Pixels>>,
11508 available_width: AvailableSpace,
11509 window: &mut Window,
11510 cx: &mut Context<Editor>,
11511) -> Option<Size<Pixels>> {
11512 let width = known_dimensions.width.or({
11513 if let AvailableSpace::Definite(available_width) = available_width {
11514 Some(available_width)
11515 } else {
11516 None
11517 }
11518 })?;
11519 if let Some(height) = known_dimensions.height {
11520 return Some(size(width, height));
11521 }
11522
11523 let style = editor.style.as_ref().unwrap();
11524 let font_id = window.text_system().resolve_font(&style.text.font());
11525 let font_size = style.text.font_size.to_pixels(window.rem_size());
11526 let line_height = style.text.line_height_in_pixels(window.rem_size());
11527 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
11528
11529 let mut snapshot = editor.snapshot(window, cx);
11530 let gutter_dimensions = snapshot.gutter_dimensions(font_id, font_size, style, window, cx);
11531
11532 editor.gutter_dimensions = gutter_dimensions;
11533 let text_width = width - gutter_dimensions.width;
11534 let overscroll = size(em_width, px(0.));
11535
11536 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
11537 if !matches!(editor.soft_wrap_mode(cx), SoftWrap::None)
11538 && editor.set_wrap_width(Some(editor_width), cx)
11539 {
11540 snapshot = editor.snapshot(window, cx);
11541 }
11542
11543 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
11544
11545 let min_height = line_height * min_lines as f32;
11546 let content_height = scroll_height.max(min_height);
11547
11548 let final_height = if let Some(max_lines) = max_lines {
11549 let max_height = line_height * max_lines as f32;
11550 content_height.min(max_height)
11551 } else {
11552 content_height
11553 };
11554
11555 Some(size(width, final_height))
11556}
11557
11558#[cfg(test)]
11559mod tests {
11560 use super::*;
11561 use crate::{
11562 Editor, MultiBuffer, SelectionEffects,
11563 display_map::{BlockPlacement, BlockProperties},
11564 editor_tests::{init_test, update_test_language_settings},
11565 };
11566 use gpui::{TestAppContext, VisualTestContext};
11567 use language::language_settings;
11568 use log::info;
11569 use std::num::NonZeroU32;
11570 use util::test::sample_text;
11571
11572 #[gpui::test]
11573 async fn test_soft_wrap_editor_width_auto_height_editor(cx: &mut TestAppContext) {
11574 init_test(cx, |_| {});
11575
11576 let window = cx.add_window(|window, cx| {
11577 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
11578 let mut editor = Editor::new(
11579 EditorMode::AutoHeight {
11580 min_lines: 1,
11581 max_lines: None,
11582 },
11583 buffer,
11584 None,
11585 window,
11586 cx,
11587 );
11588 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
11589 editor
11590 });
11591 let cx = &mut VisualTestContext::from_window(*window, cx);
11592 let editor = window.root(cx).unwrap();
11593 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
11594
11595 for x in 1..=100 {
11596 let (_, state) = cx.draw(
11597 Default::default(),
11598 size(px(200. + 0.13 * x as f32), px(500.)),
11599 |_, _| EditorElement::new(&editor, style.clone()),
11600 );
11601
11602 assert!(
11603 state.position_map.scroll_max.x == 0.,
11604 "Soft wrapped editor should have no horizontal scrolling!"
11605 );
11606 }
11607 }
11608
11609 #[gpui::test]
11610 async fn test_soft_wrap_editor_width_full_editor(cx: &mut TestAppContext) {
11611 init_test(cx, |_| {});
11612
11613 let window = cx.add_window(|window, cx| {
11614 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
11615 let mut editor = Editor::new(EditorMode::full(), buffer, None, window, cx);
11616 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
11617 editor
11618 });
11619 let cx = &mut VisualTestContext::from_window(*window, cx);
11620 let editor = window.root(cx).unwrap();
11621 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
11622
11623 for x in 1..=100 {
11624 let (_, state) = cx.draw(
11625 Default::default(),
11626 size(px(200. + 0.13 * x as f32), px(500.)),
11627 |_, _| EditorElement::new(&editor, style.clone()),
11628 );
11629
11630 assert!(
11631 state.position_map.scroll_max.x == 0.,
11632 "Soft wrapped editor should have no horizontal scrolling!"
11633 );
11634 }
11635 }
11636
11637 #[gpui::test]
11638 fn test_shape_line_numbers(cx: &mut TestAppContext) {
11639 init_test(cx, |_| {});
11640 let window = cx.add_window(|window, cx| {
11641 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
11642 Editor::new(EditorMode::full(), buffer, None, window, cx)
11643 });
11644
11645 let editor = window.root(cx).unwrap();
11646 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
11647 let line_height = window
11648 .update(cx, |_, window, _| {
11649 style.text.line_height_in_pixels(window.rem_size())
11650 })
11651 .unwrap();
11652 let element = EditorElement::new(&editor, style);
11653 let snapshot = window
11654 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
11655 .unwrap();
11656
11657 let layouts = cx
11658 .update_window(*window, |_, window, cx| {
11659 element.layout_line_numbers(
11660 None,
11661 GutterDimensions {
11662 left_padding: Pixels::ZERO,
11663 right_padding: Pixels::ZERO,
11664 width: px(30.0),
11665 margin: Pixels::ZERO,
11666 git_blame_entries_width: None,
11667 },
11668 line_height,
11669 gpui::Point::default(),
11670 DisplayRow(0)..DisplayRow(6),
11671 &(0..6)
11672 .map(|row| RowInfo {
11673 buffer_row: Some(row),
11674 ..Default::default()
11675 })
11676 .collect::<Vec<_>>(),
11677 &BTreeMap::default(),
11678 Some(DisplayPoint::new(DisplayRow(0), 0)),
11679 &snapshot,
11680 window,
11681 cx,
11682 )
11683 })
11684 .unwrap();
11685 assert_eq!(layouts.len(), 6);
11686
11687 let relative_rows = window
11688 .update(cx, |editor, window, cx| {
11689 let snapshot = editor.snapshot(window, cx);
11690 element.calculate_relative_line_numbers(
11691 &snapshot,
11692 &(DisplayRow(0)..DisplayRow(6)),
11693 Some(DisplayRow(3)),
11694 false,
11695 )
11696 })
11697 .unwrap();
11698 assert_eq!(relative_rows[&DisplayRow(0)], 3);
11699 assert_eq!(relative_rows[&DisplayRow(1)], 2);
11700 assert_eq!(relative_rows[&DisplayRow(2)], 1);
11701 // current line has no relative number
11702 assert_eq!(relative_rows[&DisplayRow(4)], 1);
11703 assert_eq!(relative_rows[&DisplayRow(5)], 2);
11704
11705 // works if cursor is before screen
11706 let relative_rows = window
11707 .update(cx, |editor, window, cx| {
11708 let snapshot = editor.snapshot(window, cx);
11709 element.calculate_relative_line_numbers(
11710 &snapshot,
11711 &(DisplayRow(3)..DisplayRow(6)),
11712 Some(DisplayRow(1)),
11713 false,
11714 )
11715 })
11716 .unwrap();
11717 assert_eq!(relative_rows.len(), 3);
11718 assert_eq!(relative_rows[&DisplayRow(3)], 2);
11719 assert_eq!(relative_rows[&DisplayRow(4)], 3);
11720 assert_eq!(relative_rows[&DisplayRow(5)], 4);
11721
11722 // works if cursor is after screen
11723 let relative_rows = window
11724 .update(cx, |editor, window, cx| {
11725 let snapshot = editor.snapshot(window, cx);
11726 element.calculate_relative_line_numbers(
11727 &snapshot,
11728 &(DisplayRow(0)..DisplayRow(3)),
11729 Some(DisplayRow(6)),
11730 false,
11731 )
11732 })
11733 .unwrap();
11734 assert_eq!(relative_rows.len(), 3);
11735 assert_eq!(relative_rows[&DisplayRow(0)], 5);
11736 assert_eq!(relative_rows[&DisplayRow(1)], 4);
11737 assert_eq!(relative_rows[&DisplayRow(2)], 3);
11738
11739 const DELETED_LINE: u32 = 3;
11740 let layouts = cx
11741 .update_window(*window, |_, window, cx| {
11742 element.layout_line_numbers(
11743 None,
11744 GutterDimensions {
11745 left_padding: Pixels::ZERO,
11746 right_padding: Pixels::ZERO,
11747 width: px(30.0),
11748 margin: Pixels::ZERO,
11749 git_blame_entries_width: None,
11750 },
11751 line_height,
11752 gpui::Point::default(),
11753 DisplayRow(0)..DisplayRow(6),
11754 &(0..6)
11755 .map(|row| RowInfo {
11756 buffer_row: Some(row),
11757 diff_status: (row == DELETED_LINE).then(|| {
11758 DiffHunkStatus::deleted(
11759 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
11760 )
11761 }),
11762 ..Default::default()
11763 })
11764 .collect::<Vec<_>>(),
11765 &BTreeMap::default(),
11766 Some(DisplayPoint::new(DisplayRow(0), 0)),
11767 &snapshot,
11768 window,
11769 cx,
11770 )
11771 })
11772 .unwrap();
11773 assert_eq!(layouts.len(), 5,);
11774 assert!(
11775 layouts.get(&MultiBufferRow(DELETED_LINE)).is_none(),
11776 "Deleted line should not have a line number"
11777 );
11778 }
11779
11780 #[gpui::test]
11781 fn test_shape_line_numbers_wrapping(cx: &mut TestAppContext) {
11782 init_test(cx, |_| {});
11783 let window = cx.add_window(|window, cx| {
11784 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
11785 Editor::new(EditorMode::full(), buffer, None, window, cx)
11786 });
11787
11788 update_test_language_settings(cx, |s| {
11789 s.defaults.preferred_line_length = Some(5_u32);
11790 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
11791 });
11792
11793 let editor = window.root(cx).unwrap();
11794 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
11795 let line_height = window
11796 .update(cx, |_, window, _| {
11797 style.text.line_height_in_pixels(window.rem_size())
11798 })
11799 .unwrap();
11800 let element = EditorElement::new(&editor, style);
11801 let snapshot = window
11802 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
11803 .unwrap();
11804
11805 let layouts = cx
11806 .update_window(*window, |_, window, cx| {
11807 element.layout_line_numbers(
11808 None,
11809 GutterDimensions {
11810 left_padding: Pixels::ZERO,
11811 right_padding: Pixels::ZERO,
11812 width: px(30.0),
11813 margin: Pixels::ZERO,
11814 git_blame_entries_width: None,
11815 },
11816 line_height,
11817 gpui::Point::default(),
11818 DisplayRow(0)..DisplayRow(6),
11819 &(0..6)
11820 .map(|row| RowInfo {
11821 buffer_row: Some(row),
11822 ..Default::default()
11823 })
11824 .collect::<Vec<_>>(),
11825 &BTreeMap::default(),
11826 Some(DisplayPoint::new(DisplayRow(0), 0)),
11827 &snapshot,
11828 window,
11829 cx,
11830 )
11831 })
11832 .unwrap();
11833 assert_eq!(layouts.len(), 3);
11834
11835 let relative_rows = window
11836 .update(cx, |editor, window, cx| {
11837 let snapshot = editor.snapshot(window, cx);
11838 element.calculate_relative_line_numbers(
11839 &snapshot,
11840 &(DisplayRow(0)..DisplayRow(6)),
11841 Some(DisplayRow(3)),
11842 true,
11843 )
11844 })
11845 .unwrap();
11846
11847 assert_eq!(relative_rows[&DisplayRow(0)], 3);
11848 assert_eq!(relative_rows[&DisplayRow(1)], 2);
11849 assert_eq!(relative_rows[&DisplayRow(2)], 1);
11850 // current line has no relative number
11851 assert_eq!(relative_rows[&DisplayRow(4)], 1);
11852 assert_eq!(relative_rows[&DisplayRow(5)], 2);
11853
11854 let layouts = cx
11855 .update_window(*window, |_, window, cx| {
11856 element.layout_line_numbers(
11857 None,
11858 GutterDimensions {
11859 left_padding: Pixels::ZERO,
11860 right_padding: Pixels::ZERO,
11861 width: px(30.0),
11862 margin: Pixels::ZERO,
11863 git_blame_entries_width: None,
11864 },
11865 line_height,
11866 gpui::Point::default(),
11867 DisplayRow(0)..DisplayRow(6),
11868 &(0..6)
11869 .map(|row| RowInfo {
11870 buffer_row: Some(row),
11871 diff_status: Some(DiffHunkStatus::deleted(
11872 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
11873 )),
11874 ..Default::default()
11875 })
11876 .collect::<Vec<_>>(),
11877 &BTreeMap::from_iter([(DisplayRow(0), LineHighlightSpec::default())]),
11878 Some(DisplayPoint::new(DisplayRow(0), 0)),
11879 &snapshot,
11880 window,
11881 cx,
11882 )
11883 })
11884 .unwrap();
11885 assert!(
11886 layouts.is_empty(),
11887 "Deleted lines should have no line number"
11888 );
11889
11890 let relative_rows = window
11891 .update(cx, |editor, window, cx| {
11892 let snapshot = editor.snapshot(window, cx);
11893 element.calculate_relative_line_numbers(
11894 &snapshot,
11895 &(DisplayRow(0)..DisplayRow(6)),
11896 Some(DisplayRow(3)),
11897 true,
11898 )
11899 })
11900 .unwrap();
11901
11902 // Deleted lines should still have relative numbers
11903 assert_eq!(relative_rows[&DisplayRow(0)], 3);
11904 assert_eq!(relative_rows[&DisplayRow(1)], 2);
11905 assert_eq!(relative_rows[&DisplayRow(2)], 1);
11906 // current line, even if deleted, has no relative number
11907 assert_eq!(relative_rows[&DisplayRow(4)], 1);
11908 assert_eq!(relative_rows[&DisplayRow(5)], 2);
11909 }
11910
11911 #[gpui::test]
11912 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
11913 init_test(cx, |_| {});
11914
11915 let window = cx.add_window(|window, cx| {
11916 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
11917 Editor::new(EditorMode::full(), buffer, None, window, cx)
11918 });
11919 let cx = &mut VisualTestContext::from_window(*window, cx);
11920 let editor = window.root(cx).unwrap();
11921 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
11922
11923 window
11924 .update(cx, |editor, window, cx| {
11925 editor.cursor_offset_on_selection = true;
11926 editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
11927 s.select_ranges([
11928 Point::new(0, 0)..Point::new(1, 0),
11929 Point::new(3, 2)..Point::new(3, 3),
11930 Point::new(5, 6)..Point::new(6, 0),
11931 ]);
11932 });
11933 })
11934 .unwrap();
11935
11936 let (_, state) = cx.draw(
11937 point(px(500.), px(500.)),
11938 size(px(500.), px(500.)),
11939 |_, _| EditorElement::new(&editor, style),
11940 );
11941
11942 assert_eq!(state.selections.len(), 1);
11943 let local_selections = &state.selections[0].1;
11944 assert_eq!(local_selections.len(), 3);
11945 // moves cursor back one line
11946 assert_eq!(
11947 local_selections[0].head,
11948 DisplayPoint::new(DisplayRow(0), 6)
11949 );
11950 assert_eq!(
11951 local_selections[0].range,
11952 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
11953 );
11954
11955 // moves cursor back one column
11956 assert_eq!(
11957 local_selections[1].range,
11958 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
11959 );
11960 assert_eq!(
11961 local_selections[1].head,
11962 DisplayPoint::new(DisplayRow(3), 2)
11963 );
11964
11965 // leaves cursor on the max point
11966 assert_eq!(
11967 local_selections[2].range,
11968 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
11969 );
11970 assert_eq!(
11971 local_selections[2].head,
11972 DisplayPoint::new(DisplayRow(6), 0)
11973 );
11974
11975 // active lines does not include 1 (even though the range of the selection does)
11976 assert_eq!(
11977 state.active_rows.keys().cloned().collect::<Vec<_>>(),
11978 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
11979 );
11980 }
11981
11982 #[gpui::test]
11983 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
11984 init_test(cx, |_| {});
11985
11986 let window = cx.add_window(|window, cx| {
11987 let buffer = MultiBuffer::build_simple("", cx);
11988 Editor::new(EditorMode::full(), buffer, None, window, cx)
11989 });
11990 let cx = &mut VisualTestContext::from_window(*window, cx);
11991 let editor = window.root(cx).unwrap();
11992 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
11993 window
11994 .update(cx, |editor, window, cx| {
11995 editor.set_placeholder_text("hello", window, cx);
11996 editor.insert_blocks(
11997 [BlockProperties {
11998 style: BlockStyle::Fixed,
11999 placement: BlockPlacement::Above(Anchor::min()),
12000 height: Some(3),
12001 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
12002 priority: 0,
12003 }],
12004 None,
12005 cx,
12006 );
12007
12008 // Blur the editor so that it displays placeholder text.
12009 window.blur();
12010 })
12011 .unwrap();
12012
12013 let (_, state) = cx.draw(
12014 point(px(500.), px(500.)),
12015 size(px(500.), px(500.)),
12016 |_, _| EditorElement::new(&editor, style),
12017 );
12018 assert_eq!(state.position_map.line_layouts.len(), 4);
12019 assert_eq!(state.line_numbers.len(), 1);
12020 assert_eq!(
12021 state
12022 .line_numbers
12023 .get(&MultiBufferRow(0))
12024 .map(|line_number| line_number
12025 .segments
12026 .first()
12027 .unwrap()
12028 .shaped_line
12029 .text
12030 .as_ref()),
12031 Some("1")
12032 );
12033 }
12034
12035 #[gpui::test]
12036 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
12037 const TAB_SIZE: u32 = 4;
12038
12039 let input_text = "\t \t|\t| a b";
12040 let expected_invisibles = vec![
12041 Invisible::Tab {
12042 line_start_offset: 0,
12043 line_end_offset: TAB_SIZE as usize,
12044 },
12045 Invisible::Whitespace {
12046 line_offset: TAB_SIZE as usize,
12047 },
12048 Invisible::Tab {
12049 line_start_offset: TAB_SIZE as usize + 1,
12050 line_end_offset: TAB_SIZE as usize * 2,
12051 },
12052 Invisible::Tab {
12053 line_start_offset: TAB_SIZE as usize * 2 + 1,
12054 line_end_offset: TAB_SIZE as usize * 3,
12055 },
12056 Invisible::Whitespace {
12057 line_offset: TAB_SIZE as usize * 3 + 1,
12058 },
12059 Invisible::Whitespace {
12060 line_offset: TAB_SIZE as usize * 3 + 3,
12061 },
12062 ];
12063 assert_eq!(
12064 expected_invisibles.len(),
12065 input_text
12066 .chars()
12067 .filter(|initial_char| initial_char.is_whitespace())
12068 .count(),
12069 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
12070 );
12071
12072 for show_line_numbers in [true, false] {
12073 init_test(cx, |s| {
12074 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12075 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
12076 });
12077
12078 let actual_invisibles = collect_invisibles_from_new_editor(
12079 cx,
12080 EditorMode::full(),
12081 input_text,
12082 px(500.0),
12083 show_line_numbers,
12084 );
12085
12086 assert_eq!(expected_invisibles, actual_invisibles);
12087 }
12088 }
12089
12090 #[gpui::test]
12091 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
12092 init_test(cx, |s| {
12093 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12094 s.defaults.tab_size = NonZeroU32::new(4);
12095 });
12096
12097 for editor_mode_without_invisibles in [
12098 EditorMode::SingleLine,
12099 EditorMode::AutoHeight {
12100 min_lines: 1,
12101 max_lines: Some(100),
12102 },
12103 ] {
12104 for show_line_numbers in [true, false] {
12105 let invisibles = collect_invisibles_from_new_editor(
12106 cx,
12107 editor_mode_without_invisibles.clone(),
12108 "\t\t\t| | a b",
12109 px(500.0),
12110 show_line_numbers,
12111 );
12112 assert!(
12113 invisibles.is_empty(),
12114 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
12115 );
12116 }
12117 }
12118 }
12119
12120 #[gpui::test]
12121 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
12122 let tab_size = 4;
12123 let input_text = "a\tbcd ".repeat(9);
12124 let repeated_invisibles = [
12125 Invisible::Tab {
12126 line_start_offset: 1,
12127 line_end_offset: tab_size as usize,
12128 },
12129 Invisible::Whitespace {
12130 line_offset: tab_size as usize + 3,
12131 },
12132 Invisible::Whitespace {
12133 line_offset: tab_size as usize + 4,
12134 },
12135 Invisible::Whitespace {
12136 line_offset: tab_size as usize + 5,
12137 },
12138 Invisible::Whitespace {
12139 line_offset: tab_size as usize + 6,
12140 },
12141 Invisible::Whitespace {
12142 line_offset: tab_size as usize + 7,
12143 },
12144 ];
12145 let expected_invisibles = std::iter::once(repeated_invisibles)
12146 .cycle()
12147 .take(9)
12148 .flatten()
12149 .collect::<Vec<_>>();
12150 assert_eq!(
12151 expected_invisibles.len(),
12152 input_text
12153 .chars()
12154 .filter(|initial_char| initial_char.is_whitespace())
12155 .count(),
12156 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
12157 );
12158 info!("Expected invisibles: {expected_invisibles:?}");
12159
12160 init_test(cx, |_| {});
12161
12162 // Put the same string with repeating whitespace pattern into editors of various size,
12163 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
12164 let resize_step = 10.0;
12165 let mut editor_width = 200.0;
12166 while editor_width <= 1000.0 {
12167 for show_line_numbers in [true, false] {
12168 update_test_language_settings(cx, |s| {
12169 s.defaults.tab_size = NonZeroU32::new(tab_size);
12170 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12171 s.defaults.preferred_line_length = Some(editor_width as u32);
12172 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
12173 });
12174
12175 let actual_invisibles = collect_invisibles_from_new_editor(
12176 cx,
12177 EditorMode::full(),
12178 &input_text,
12179 px(editor_width),
12180 show_line_numbers,
12181 );
12182
12183 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
12184 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
12185 let mut i = 0;
12186 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
12187 i = actual_index;
12188 match expected_invisibles.get(i) {
12189 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
12190 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
12191 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
12192 _ => {
12193 panic!(
12194 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
12195 )
12196 }
12197 },
12198 None => {
12199 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
12200 }
12201 }
12202 }
12203 let missing_expected_invisibles = &expected_invisibles[i + 1..];
12204 assert!(
12205 missing_expected_invisibles.is_empty(),
12206 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
12207 );
12208
12209 editor_width += resize_step;
12210 }
12211 }
12212 }
12213
12214 fn collect_invisibles_from_new_editor(
12215 cx: &mut TestAppContext,
12216 editor_mode: EditorMode,
12217 input_text: &str,
12218 editor_width: Pixels,
12219 show_line_numbers: bool,
12220 ) -> Vec<Invisible> {
12221 info!(
12222 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
12223 f32::from(editor_width)
12224 );
12225 let window = cx.add_window(|window, cx| {
12226 let buffer = MultiBuffer::build_simple(input_text, cx);
12227 Editor::new(editor_mode, buffer, None, window, cx)
12228 });
12229 let cx = &mut VisualTestContext::from_window(*window, cx);
12230 let editor = window.root(cx).unwrap();
12231
12232 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12233 window
12234 .update(cx, |editor, _, cx| {
12235 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12236 editor.set_wrap_width(Some(editor_width), cx);
12237 editor.set_show_line_numbers(show_line_numbers, cx);
12238 })
12239 .unwrap();
12240 let (_, state) = cx.draw(
12241 point(px(500.), px(500.)),
12242 size(px(500.), px(500.)),
12243 |_, _| EditorElement::new(&editor, style),
12244 );
12245 state
12246 .position_map
12247 .line_layouts
12248 .iter()
12249 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
12250 .cloned()
12251 .collect()
12252 }
12253
12254 #[gpui::test]
12255 fn test_merge_overlapping_ranges() {
12256 let base_bg = Hsla::white();
12257 let color1 = Hsla {
12258 h: 0.0,
12259 s: 0.5,
12260 l: 0.5,
12261 a: 0.5,
12262 };
12263 let color2 = Hsla {
12264 h: 120.0,
12265 s: 0.5,
12266 l: 0.5,
12267 a: 0.5,
12268 };
12269
12270 let display_point = |col| DisplayPoint::new(DisplayRow(0), col);
12271 let cols = |v: &Vec<(Range<DisplayPoint>, Hsla)>| -> Vec<(u32, u32)> {
12272 v.iter()
12273 .map(|(r, _)| (r.start.column(), r.end.column()))
12274 .collect()
12275 };
12276
12277 // Test overlapping ranges blend colors
12278 let overlapping = vec![
12279 (display_point(5)..display_point(15), color1),
12280 (display_point(10)..display_point(20), color2),
12281 ];
12282 let result = EditorElement::merge_overlapping_ranges(overlapping, base_bg);
12283 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
12284
12285 // Test middle segment should have blended color
12286 let blended = Hsla::blend(Hsla::blend(base_bg, color1), color2);
12287 assert_eq!(result[1].1, blended);
12288
12289 // Test adjacent same-color ranges merge
12290 let adjacent_same = vec![
12291 (display_point(5)..display_point(10), color1),
12292 (display_point(10)..display_point(15), color1),
12293 ];
12294 let result = EditorElement::merge_overlapping_ranges(adjacent_same, base_bg);
12295 assert_eq!(cols(&result), vec![(5, 15)]);
12296
12297 // Test contained range splits
12298 let contained = vec![
12299 (display_point(5)..display_point(20), color1),
12300 (display_point(10)..display_point(15), color2),
12301 ];
12302 let result = EditorElement::merge_overlapping_ranges(contained, base_bg);
12303 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
12304
12305 // Test multiple overlaps split at every boundary
12306 let color3 = Hsla {
12307 h: 240.0,
12308 s: 0.5,
12309 l: 0.5,
12310 a: 0.5,
12311 };
12312 let complex = vec![
12313 (display_point(5)..display_point(12), color1),
12314 (display_point(8)..display_point(16), color2),
12315 (display_point(10)..display_point(14), color3),
12316 ];
12317 let result = EditorElement::merge_overlapping_ranges(complex, base_bg);
12318 assert_eq!(
12319 cols(&result),
12320 vec![(5, 8), (8, 10), (10, 12), (12, 14), (14, 16)]
12321 );
12322 }
12323
12324 #[gpui::test]
12325 fn test_bg_segments_per_row() {
12326 let base_bg = Hsla::white();
12327
12328 // Case A: selection spans three display rows: row 1 [5, end), full row 2, row 3 [0, 7)
12329 {
12330 let selection_color = Hsla {
12331 h: 200.0,
12332 s: 0.5,
12333 l: 0.5,
12334 a: 0.5,
12335 };
12336 let player_color = PlayerColor {
12337 cursor: selection_color,
12338 background: selection_color,
12339 selection: selection_color,
12340 };
12341
12342 let spanning_selection = SelectionLayout {
12343 head: DisplayPoint::new(DisplayRow(3), 7),
12344 cursor_shape: CursorShape::Bar,
12345 is_newest: true,
12346 is_local: true,
12347 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 7),
12348 active_rows: DisplayRow(1)..DisplayRow(4),
12349 user_name: None,
12350 };
12351
12352 let selections = vec![(player_color, vec![spanning_selection])];
12353 let result = EditorElement::bg_segments_per_row(
12354 DisplayRow(0)..DisplayRow(5),
12355 &selections,
12356 &[],
12357 base_bg,
12358 );
12359
12360 assert_eq!(result.len(), 5);
12361 assert!(result[0].is_empty());
12362 assert_eq!(result[1].len(), 1);
12363 assert_eq!(result[2].len(), 1);
12364 assert_eq!(result[3].len(), 1);
12365 assert!(result[4].is_empty());
12366
12367 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
12368 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
12369 assert_eq!(result[1][0].0.end.column(), u32::MAX);
12370 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
12371 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
12372 assert_eq!(result[2][0].0.end.column(), u32::MAX);
12373 assert_eq!(result[3][0].0.start, DisplayPoint::new(DisplayRow(3), 0));
12374 assert_eq!(result[3][0].0.end, DisplayPoint::new(DisplayRow(3), 7));
12375 }
12376
12377 // Case B: selection ends exactly at the start of row 3, excluding row 3
12378 {
12379 let selection_color = Hsla {
12380 h: 120.0,
12381 s: 0.5,
12382 l: 0.5,
12383 a: 0.5,
12384 };
12385 let player_color = PlayerColor {
12386 cursor: selection_color,
12387 background: selection_color,
12388 selection: selection_color,
12389 };
12390
12391 let selection = SelectionLayout {
12392 head: DisplayPoint::new(DisplayRow(2), 0),
12393 cursor_shape: CursorShape::Bar,
12394 is_newest: true,
12395 is_local: true,
12396 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 0),
12397 active_rows: DisplayRow(1)..DisplayRow(3),
12398 user_name: None,
12399 };
12400
12401 let selections = vec![(player_color, vec![selection])];
12402 let result = EditorElement::bg_segments_per_row(
12403 DisplayRow(0)..DisplayRow(4),
12404 &selections,
12405 &[],
12406 base_bg,
12407 );
12408
12409 assert_eq!(result.len(), 4);
12410 assert!(result[0].is_empty());
12411 assert_eq!(result[1].len(), 1);
12412 assert_eq!(result[2].len(), 1);
12413 assert!(result[3].is_empty());
12414
12415 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
12416 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
12417 assert_eq!(result[1][0].0.end.column(), u32::MAX);
12418 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
12419 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
12420 assert_eq!(result[2][0].0.end.column(), u32::MAX);
12421 }
12422 }
12423
12424 #[cfg(test)]
12425 fn generate_test_run(len: usize, color: Hsla) -> TextRun {
12426 TextRun {
12427 len,
12428 color,
12429 ..Default::default()
12430 }
12431 }
12432
12433 #[gpui::test]
12434 fn test_split_runs_by_bg_segments(cx: &mut gpui::TestAppContext) {
12435 init_test(cx, |_| {});
12436
12437 let dx = |start: u32, end: u32| {
12438 DisplayPoint::new(DisplayRow(0), start)..DisplayPoint::new(DisplayRow(0), end)
12439 };
12440
12441 let text_color = Hsla {
12442 h: 210.0,
12443 s: 0.1,
12444 l: 0.4,
12445 a: 1.0,
12446 };
12447 let bg_1 = Hsla {
12448 h: 30.0,
12449 s: 0.6,
12450 l: 0.8,
12451 a: 1.0,
12452 };
12453 let bg_2 = Hsla {
12454 h: 200.0,
12455 s: 0.6,
12456 l: 0.2,
12457 a: 1.0,
12458 };
12459 let min_contrast = 45.0;
12460 let adjusted_bg1 = ensure_minimum_contrast(text_color, bg_1, min_contrast);
12461 let adjusted_bg2 = ensure_minimum_contrast(text_color, bg_2, min_contrast);
12462
12463 // Case A: single run; disjoint segments inside the run
12464 {
12465 let runs = vec![generate_test_run(20, text_color)];
12466 let segs = vec![(dx(5, 10), bg_1), (dx(12, 16), bg_2)];
12467 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
12468 // Expected slices: [0,5) [5,10) [10,12) [12,16) [16,20)
12469 assert_eq!(
12470 out.iter().map(|r| r.len).collect::<Vec<_>>(),
12471 vec![5, 5, 2, 4, 4]
12472 );
12473 assert_eq!(out[0].color, text_color);
12474 assert_eq!(out[1].color, adjusted_bg1);
12475 assert_eq!(out[2].color, text_color);
12476 assert_eq!(out[3].color, adjusted_bg2);
12477 assert_eq!(out[4].color, text_color);
12478 }
12479
12480 // Case B: multiple runs; segment extends to end of line (u32::MAX)
12481 {
12482 let runs = vec![
12483 generate_test_run(8, text_color),
12484 generate_test_run(7, text_color),
12485 ];
12486 let segs = vec![(dx(6, u32::MAX), bg_1)];
12487 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
12488 // Expected slices across runs: [0,6) [6,8) | [0,7)
12489 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![6, 2, 7]);
12490 assert_eq!(out[0].color, text_color);
12491 assert_eq!(out[1].color, adjusted_bg1);
12492 assert_eq!(out[2].color, adjusted_bg1);
12493 }
12494
12495 // Case C: multi-byte characters
12496 {
12497 // for text: "Hello π δΈη!"
12498 let runs = vec![
12499 generate_test_run(5, text_color), // "Hello"
12500 generate_test_run(6, text_color), // " π "
12501 generate_test_run(6, text_color), // "δΈη"
12502 generate_test_run(1, text_color), // "!"
12503 ];
12504 // selecting "π δΈ"
12505 let segs = vec![(dx(6, 14), bg_1)];
12506 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
12507 // "Hello" | " " | "π " | "δΈ" | "η" | "!"
12508 assert_eq!(
12509 out.iter().map(|r| r.len).collect::<Vec<_>>(),
12510 vec![5, 1, 5, 3, 3, 1]
12511 );
12512 assert_eq!(out[0].color, text_color); // "Hello"
12513 assert_eq!(out[2].color, adjusted_bg1); // "π "
12514 assert_eq!(out[3].color, adjusted_bg1); // "δΈ"
12515 assert_eq!(out[4].color, text_color); // "η"
12516 assert_eq!(out[5].color, text_color); // "!"
12517 }
12518
12519 // Case D: split multiple consecutive text runs with segments
12520 {
12521 let segs = vec![
12522 (dx(2, 4), bg_1), // selecting "cd"
12523 (dx(4, 8), bg_2), // selecting "efgh"
12524 (dx(9, 11), bg_1), // selecting "jk"
12525 (dx(12, 16), bg_2), // selecting "mnop"
12526 (dx(18, 19), bg_1), // selecting "s"
12527 ];
12528
12529 // for text: "abcdef"
12530 let runs = vec![
12531 generate_test_run(2, text_color), // ab
12532 generate_test_run(4, text_color), // cdef
12533 ];
12534 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
12535 // new splits "ab", "cd", "ef"
12536 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![2, 2, 2]);
12537 assert_eq!(out[0].color, text_color);
12538 assert_eq!(out[1].color, adjusted_bg1);
12539 assert_eq!(out[2].color, adjusted_bg2);
12540
12541 // for text: "ghijklmn"
12542 let runs = vec![
12543 generate_test_run(3, text_color), // ghi
12544 generate_test_run(2, text_color), // jk
12545 generate_test_run(3, text_color), // lmn
12546 ];
12547 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 6); // 2 + 4 from first run
12548 // new splits "gh", "i", "jk", "l", "mn"
12549 assert_eq!(
12550 out.iter().map(|r| r.len).collect::<Vec<_>>(),
12551 vec![2, 1, 2, 1, 2]
12552 );
12553 assert_eq!(out[0].color, adjusted_bg2);
12554 assert_eq!(out[1].color, text_color);
12555 assert_eq!(out[2].color, adjusted_bg1);
12556 assert_eq!(out[3].color, text_color);
12557 assert_eq!(out[4].color, adjusted_bg2);
12558
12559 // for text: "opqrs"
12560 let runs = vec![
12561 generate_test_run(1, text_color), // o
12562 generate_test_run(4, text_color), // pqrs
12563 ];
12564 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 14); // 6 + 3 + 2 + 3 from first two runs
12565 // new splits "o", "p", "qr", "s"
12566 assert_eq!(
12567 out.iter().map(|r| r.len).collect::<Vec<_>>(),
12568 vec![1, 1, 2, 1]
12569 );
12570 assert_eq!(out[0].color, adjusted_bg2);
12571 assert_eq!(out[1].color, adjusted_bg2);
12572 assert_eq!(out[2].color, text_color);
12573 assert_eq!(out[3].color, adjusted_bg1);
12574 }
12575 }
12576}