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