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