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