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