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, StyledText, TextRun, TextStyleRefinement,
54 WeakEntity, Window, anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline,
55 point, px, quad, relative, size, solid_background, transparent_black,
56};
57use itertools::Itertools;
58use language::{IndentGuideSettings, language_settings::ShowWhitespaceSetting};
59use markdown::Markdown;
60use multi_buffer::{
61 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, ExpandInfo, MultiBufferPoint,
62 MultiBufferRow, RowInfo,
63};
64
65use edit_prediction_types::EditPredictionGranularity;
66use project::{
67 Entry, ProjectPath,
68 debugger::breakpoint_store::{Breakpoint, BreakpointSessionState},
69 project_settings::ProjectSettings,
70};
71use settings::{
72 GitGutterSetting, GitHunkStyleSetting, IndentGuideBackgroundColoring, IndentGuideColoring,
73 Settings,
74};
75use smallvec::{SmallVec, smallvec};
76use std::{
77 any::TypeId,
78 borrow::Cow,
79 cell::Cell,
80 cmp::{self, Ordering},
81 fmt::{self, Write},
82 iter, mem,
83 ops::{Deref, Range},
84 path::{self, Path},
85 rc::Rc,
86 sync::Arc,
87 time::{Duration, Instant},
88};
89use sum_tree::Bias;
90use text::{BufferId, SelectionGoal};
91use theme::{ActiveTheme, Appearance, BufferLineHeight, PlayerColor};
92use ui::utils::ensure_minimum_contrast;
93use ui::{
94 ButtonLike, ContextMenu, Indicator, KeyBinding, POPOVER_Y_PADDING, Tooltip, prelude::*,
95 right_click_menu, scrollbars::ShowScrollbar, text_for_keystroke,
96};
97use unicode_segmentation::UnicodeSegmentation;
98use util::post_inc;
99use util::{RangeExt, ResultExt, debug_panic};
100use workspace::{
101 CollaboratorId, ItemHandle, ItemSettings, OpenInTerminal, OpenTerminal, RevealInProjectPanel,
102 Workspace,
103 item::{BreadcrumbText, Item, ItemBufferKind},
104 notifications::NotifyTaskExt,
105};
106
107/// Determines what kinds of highlights should be applied to a lines background.
108#[derive(Clone, Copy, Default)]
109struct LineHighlightSpec {
110 selection: bool,
111 breakpoint: bool,
112 _active_stack_frame: bool,
113}
114
115#[derive(Debug)]
116struct SelectionLayout {
117 head: DisplayPoint,
118 cursor_shape: CursorShape,
119 is_newest: bool,
120 is_local: bool,
121 range: Range<DisplayPoint>,
122 active_rows: Range<DisplayRow>,
123 user_name: Option<SharedString>,
124}
125
126struct InlineBlameLayout {
127 element: AnyElement,
128 bounds: Bounds<Pixels>,
129 buffer_id: BufferId,
130 entry: BlameEntry,
131}
132
133impl SelectionLayout {
134 fn new<T: ToPoint + ToDisplayPoint + Clone>(
135 selection: Selection<T>,
136 line_mode: bool,
137 vim_mode_enabled: bool,
138 cursor_shape: CursorShape,
139 map: &DisplaySnapshot,
140 is_newest: bool,
141 is_local: bool,
142 user_name: Option<SharedString>,
143 ) -> Self {
144 let point_selection = selection.map(|p| p.to_point(map.buffer_snapshot()));
145 let display_selection = point_selection.map(|p| p.to_display_point(map));
146 let mut range = display_selection.range();
147 let mut head = display_selection.head();
148 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
149 ..map.next_line_boundary(point_selection.end).1.row();
150
151 // vim visual line mode
152 if line_mode {
153 let point_range = map.expand_to_line(point_selection.range());
154 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
155 }
156
157 // any vim visual mode (including line mode)
158 if vim_mode_enabled && !range.is_empty() && !selection.reversed {
159 if head.column() > 0 {
160 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left);
161 } else if head.row().0 > 0 && head != map.max_point() {
162 head = map.clip_point(
163 DisplayPoint::new(
164 head.row().previous_row(),
165 map.line_len(head.row().previous_row()),
166 ),
167 Bias::Left,
168 );
169 // updating range.end is a no-op unless you're cursor is
170 // on the newline containing a multi-buffer divider
171 // in which case the clip_point may have moved the head up
172 // an additional row.
173 range.end = DisplayPoint::new(head.row().next_row(), 0);
174 active_rows.end = head.row();
175 }
176 }
177
178 Self {
179 head,
180 cursor_shape,
181 is_newest,
182 is_local,
183 range,
184 active_rows,
185 user_name,
186 }
187 }
188}
189
190#[derive(Default)]
191struct RenderBlocksOutput {
192 blocks: Vec<BlockLayout>,
193 row_block_types: HashMap<DisplayRow, bool>,
194 resized_blocks: Option<HashMap<CustomBlockId, u32>>,
195}
196
197pub struct EditorElement {
198 editor: Entity<Editor>,
199 style: EditorStyle,
200}
201
202type DisplayRowDelta = u32;
203
204impl EditorElement {
205 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
206
207 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
208 Self {
209 editor: editor.clone(),
210 style,
211 }
212 }
213
214 fn register_actions(&self, window: &mut Window, cx: &mut App) {
215 let editor = &self.editor;
216 editor.update(cx, |editor, cx| {
217 for action in editor.editor_actions.borrow().values() {
218 (action)(editor, window, cx)
219 }
220 });
221
222 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
223 crate::clangd_ext::apply_related_actions(editor, window, cx);
224
225 register_action(editor, window, Editor::open_context_menu);
226 register_action(editor, window, Editor::move_left);
227 register_action(editor, window, Editor::move_right);
228 register_action(editor, window, Editor::move_down);
229 register_action(editor, window, Editor::move_down_by_lines);
230 register_action(editor, window, Editor::select_down_by_lines);
231 register_action(editor, window, Editor::move_up);
232 register_action(editor, window, Editor::move_up_by_lines);
233 register_action(editor, window, Editor::select_up_by_lines);
234 register_action(editor, window, Editor::select_page_down);
235 register_action(editor, window, Editor::select_page_up);
236 register_action(editor, window, Editor::cancel);
237 register_action(editor, window, Editor::newline);
238 register_action(editor, window, Editor::newline_above);
239 register_action(editor, window, Editor::newline_below);
240 register_action(editor, window, Editor::backspace);
241 register_action(editor, window, Editor::blame_hover);
242 register_action(editor, window, Editor::delete);
243 register_action(editor, window, Editor::tab);
244 register_action(editor, window, Editor::next_snippet_tabstop);
245 register_action(editor, window, Editor::previous_snippet_tabstop);
246 register_action(editor, window, Editor::backtab);
247 register_action(editor, window, Editor::indent);
248 register_action(editor, window, Editor::outdent);
249 register_action(editor, window, Editor::autoindent);
250 register_action(editor, window, Editor::delete_line);
251 register_action(editor, window, Editor::join_lines);
252 register_action(editor, window, Editor::sort_lines_by_length);
253 register_action(editor, window, Editor::sort_lines_case_sensitive);
254 register_action(editor, window, Editor::sort_lines_case_insensitive);
255 register_action(editor, window, Editor::reverse_lines);
256 register_action(editor, window, Editor::shuffle_lines);
257 register_action(editor, window, Editor::rotate_selections_forward);
258 register_action(editor, window, Editor::rotate_selections_backward);
259 register_action(editor, window, Editor::convert_indentation_to_spaces);
260 register_action(editor, window, Editor::convert_indentation_to_tabs);
261 register_action(editor, window, Editor::convert_to_upper_case);
262 register_action(editor, window, Editor::convert_to_lower_case);
263 register_action(editor, window, Editor::convert_to_title_case);
264 register_action(editor, window, Editor::convert_to_snake_case);
265 register_action(editor, window, Editor::convert_to_kebab_case);
266 register_action(editor, window, Editor::convert_to_upper_camel_case);
267 register_action(editor, window, Editor::convert_to_lower_camel_case);
268 register_action(editor, window, Editor::convert_to_opposite_case);
269 register_action(editor, window, Editor::convert_to_sentence_case);
270 register_action(editor, window, Editor::toggle_case);
271 register_action(editor, window, Editor::convert_to_rot13);
272 register_action(editor, window, Editor::convert_to_rot47);
273 register_action(editor, window, Editor::delete_to_previous_word_start);
274 register_action(editor, window, Editor::delete_to_previous_subword_start);
275 register_action(editor, window, Editor::delete_to_next_word_end);
276 register_action(editor, window, Editor::delete_to_next_subword_end);
277 register_action(editor, window, Editor::delete_to_beginning_of_line);
278 register_action(editor, window, Editor::delete_to_end_of_line);
279 register_action(editor, window, Editor::cut_to_end_of_line);
280 register_action(editor, window, Editor::duplicate_line_up);
281 register_action(editor, window, Editor::duplicate_line_down);
282 register_action(editor, window, Editor::duplicate_selection);
283 register_action(editor, window, Editor::move_line_up);
284 register_action(editor, window, Editor::move_line_down);
285 register_action(editor, window, Editor::transpose);
286 register_action(editor, window, Editor::rewrap);
287 register_action(editor, window, Editor::cut);
288 register_action(editor, window, Editor::kill_ring_cut);
289 register_action(editor, window, Editor::kill_ring_yank);
290 register_action(editor, window, Editor::copy);
291 register_action(editor, window, Editor::copy_and_trim);
292 register_action(editor, window, Editor::diff_clipboard_with_selection);
293 register_action(editor, window, Editor::paste);
294 register_action(editor, window, Editor::undo);
295 register_action(editor, window, Editor::redo);
296 register_action(editor, window, Editor::move_page_up);
297 register_action(editor, window, Editor::move_page_down);
298 register_action(editor, window, Editor::next_screen);
299 register_action(editor, window, Editor::scroll_cursor_top);
300 register_action(editor, window, Editor::scroll_cursor_center);
301 register_action(editor, window, Editor::scroll_cursor_bottom);
302 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
303 register_action(editor, window, |editor, _: &LineDown, window, cx| {
304 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
305 });
306 register_action(editor, window, |editor, _: &LineUp, window, cx| {
307 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
308 });
309 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
310 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
311 });
312 register_action(
313 editor,
314 window,
315 |editor, HandleInput(text): &HandleInput, window, cx| {
316 if text.is_empty() {
317 return;
318 }
319 editor.handle_input(text, window, cx);
320 },
321 );
322 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
323 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
324 });
325 register_action(editor, window, |editor, _: &PageDown, window, cx| {
326 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
327 });
328 register_action(editor, window, |editor, _: &PageUp, window, cx| {
329 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
330 });
331 register_action(editor, window, Editor::move_to_previous_word_start);
332 register_action(editor, window, Editor::move_to_previous_subword_start);
333 register_action(editor, window, Editor::move_to_next_word_end);
334 register_action(editor, window, Editor::move_to_next_subword_end);
335 register_action(editor, window, Editor::move_to_beginning_of_line);
336 register_action(editor, window, Editor::move_to_end_of_line);
337 register_action(editor, window, Editor::move_to_start_of_paragraph);
338 register_action(editor, window, Editor::move_to_end_of_paragraph);
339 register_action(editor, window, Editor::move_to_beginning);
340 register_action(editor, window, Editor::move_to_end);
341 register_action(editor, window, Editor::move_to_start_of_excerpt);
342 register_action(editor, window, Editor::move_to_start_of_next_excerpt);
343 register_action(editor, window, Editor::move_to_end_of_excerpt);
344 register_action(editor, window, Editor::move_to_end_of_previous_excerpt);
345 register_action(editor, window, Editor::select_up);
346 register_action(editor, window, Editor::select_down);
347 register_action(editor, window, Editor::select_left);
348 register_action(editor, window, Editor::select_right);
349 register_action(editor, window, Editor::select_to_previous_word_start);
350 register_action(editor, window, Editor::select_to_previous_subword_start);
351 register_action(editor, window, Editor::select_to_next_word_end);
352 register_action(editor, window, Editor::select_to_next_subword_end);
353 register_action(editor, window, Editor::select_to_beginning_of_line);
354 register_action(editor, window, Editor::select_to_end_of_line);
355 register_action(editor, window, Editor::select_to_start_of_paragraph);
356 register_action(editor, window, Editor::select_to_end_of_paragraph);
357 register_action(editor, window, Editor::select_to_start_of_excerpt);
358 register_action(editor, window, Editor::select_to_start_of_next_excerpt);
359 register_action(editor, window, Editor::select_to_end_of_excerpt);
360 register_action(editor, window, Editor::select_to_end_of_previous_excerpt);
361 register_action(editor, window, Editor::select_to_beginning);
362 register_action(editor, window, Editor::select_to_end);
363 register_action(editor, window, Editor::select_all);
364 register_action(editor, window, |editor, action, window, cx| {
365 editor.select_all_matches(action, window, cx).log_err();
366 });
367 register_action(editor, window, Editor::select_line);
368 register_action(editor, window, Editor::split_selection_into_lines);
369 register_action(editor, window, Editor::add_selection_above);
370 register_action(editor, window, Editor::add_selection_below);
371 register_action(editor, window, Editor::insert_snippet_at_selections);
372 register_action(editor, window, |editor, action, window, cx| {
373 editor.select_next(action, window, cx).log_err();
374 });
375 register_action(editor, window, |editor, action, window, cx| {
376 editor.select_previous(action, window, cx).log_err();
377 });
378 register_action(editor, window, |editor, action, window, cx| {
379 editor.find_next_match(action, window, cx).log_err();
380 });
381 register_action(editor, window, |editor, action, window, cx| {
382 editor.find_previous_match(action, window, cx).log_err();
383 });
384 register_action(editor, window, Editor::toggle_comments);
385 register_action(editor, window, Editor::select_larger_syntax_node);
386 register_action(editor, window, Editor::select_smaller_syntax_node);
387 register_action(editor, window, Editor::select_next_syntax_node);
388 register_action(editor, window, Editor::select_prev_syntax_node);
389 register_action(editor, window, Editor::unwrap_syntax_node);
390 register_action(editor, window, Editor::select_enclosing_symbol);
391 register_action(editor, window, Editor::move_to_enclosing_bracket);
392 register_action(editor, window, Editor::undo_selection);
393 register_action(editor, window, Editor::redo_selection);
394 if editor.read(cx).buffer_kind(cx) == ItemBufferKind::Multibuffer {
395 register_action(editor, window, Editor::expand_excerpts);
396 register_action(editor, window, Editor::expand_excerpts_up);
397 register_action(editor, window, Editor::expand_excerpts_down);
398 }
399 register_action(editor, window, Editor::go_to_diagnostic);
400 register_action(editor, window, Editor::go_to_prev_diagnostic);
401 register_action(editor, window, Editor::go_to_next_hunk);
402 register_action(editor, window, Editor::go_to_prev_hunk);
403 register_action(editor, window, Editor::go_to_next_document_highlight);
404 register_action(editor, window, Editor::go_to_prev_document_highlight);
405 register_action(editor, window, |editor, action, window, cx| {
406 editor
407 .go_to_definition(action, window, cx)
408 .detach_and_log_err(cx);
409 });
410 register_action(editor, window, |editor, action, window, cx| {
411 editor
412 .go_to_definition_split(action, window, cx)
413 .detach_and_log_err(cx);
414 });
415 register_action(editor, window, |editor, action, window, cx| {
416 editor
417 .go_to_declaration(action, window, cx)
418 .detach_and_log_err(cx);
419 });
420 register_action(editor, window, |editor, action, window, cx| {
421 editor
422 .go_to_declaration_split(action, window, cx)
423 .detach_and_log_err(cx);
424 });
425 register_action(editor, window, |editor, action, window, cx| {
426 editor
427 .go_to_implementation(action, window, cx)
428 .detach_and_log_err(cx);
429 });
430 register_action(editor, window, |editor, action, window, cx| {
431 editor
432 .go_to_implementation_split(action, window, cx)
433 .detach_and_log_err(cx);
434 });
435 register_action(editor, window, |editor, action, window, cx| {
436 editor
437 .go_to_type_definition(action, window, cx)
438 .detach_and_log_err(cx);
439 });
440 register_action(editor, window, |editor, action, window, cx| {
441 editor
442 .go_to_type_definition_split(action, window, cx)
443 .detach_and_log_err(cx);
444 });
445 register_action(editor, window, Editor::open_url);
446 register_action(editor, window, Editor::open_selected_filename);
447 register_action(editor, window, Editor::fold);
448 register_action(editor, window, Editor::fold_at_level);
449 register_action(editor, window, Editor::fold_at_level_1);
450 register_action(editor, window, Editor::fold_at_level_2);
451 register_action(editor, window, Editor::fold_at_level_3);
452 register_action(editor, window, Editor::fold_at_level_4);
453 register_action(editor, window, Editor::fold_at_level_5);
454 register_action(editor, window, Editor::fold_at_level_6);
455 register_action(editor, window, Editor::fold_at_level_7);
456 register_action(editor, window, Editor::fold_at_level_8);
457 register_action(editor, window, Editor::fold_at_level_9);
458 register_action(editor, window, Editor::fold_all);
459 register_action(editor, window, Editor::fold_function_bodies);
460 register_action(editor, window, Editor::fold_recursive);
461 register_action(editor, window, Editor::toggle_fold);
462 register_action(editor, window, Editor::toggle_fold_recursive);
463 register_action(editor, window, Editor::toggle_fold_all);
464 register_action(editor, window, Editor::unfold_lines);
465 register_action(editor, window, Editor::unfold_recursive);
466 register_action(editor, window, Editor::unfold_all);
467 register_action(editor, window, Editor::fold_selected_ranges);
468 register_action(editor, window, Editor::set_mark);
469 register_action(editor, window, Editor::swap_selection_ends);
470 register_action(editor, window, Editor::show_completions);
471 register_action(editor, window, Editor::show_word_completions);
472 register_action(editor, window, Editor::toggle_code_actions);
473 register_action(editor, window, Editor::open_excerpts);
474 register_action(editor, window, Editor::open_excerpts_in_split);
475 register_action(editor, window, Editor::toggle_soft_wrap);
476 register_action(editor, window, Editor::toggle_tab_bar);
477 register_action(editor, window, Editor::toggle_line_numbers);
478 register_action(editor, window, Editor::toggle_relative_line_numbers);
479 register_action(editor, window, Editor::toggle_indent_guides);
480 register_action(editor, window, Editor::toggle_inlay_hints);
481 register_action(editor, window, Editor::toggle_edit_predictions);
482 if editor.read(cx).diagnostics_enabled() {
483 register_action(editor, window, Editor::toggle_diagnostics);
484 }
485 if editor.read(cx).inline_diagnostics_enabled() {
486 register_action(editor, window, Editor::toggle_inline_diagnostics);
487 }
488 if editor.read(cx).supports_minimap(cx) {
489 register_action(editor, window, Editor::toggle_minimap);
490 }
491 register_action(editor, window, hover_popover::hover);
492 register_action(editor, window, Editor::reveal_in_finder);
493 register_action(editor, window, Editor::copy_path);
494 register_action(editor, window, Editor::copy_relative_path);
495 register_action(editor, window, Editor::copy_file_name);
496 register_action(editor, window, Editor::copy_file_name_without_extension);
497 register_action(editor, window, Editor::copy_highlight_json);
498 register_action(editor, window, Editor::copy_permalink_to_line);
499 register_action(editor, window, Editor::open_permalink_to_line);
500 register_action(editor, window, Editor::copy_file_location);
501 register_action(editor, window, Editor::toggle_git_blame);
502 register_action(editor, window, Editor::toggle_git_blame_inline);
503 register_action(editor, window, Editor::open_git_blame_commit);
504 register_action(editor, window, Editor::toggle_selected_diff_hunks);
505 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
506 register_action(editor, window, Editor::stage_and_next);
507 register_action(editor, window, Editor::unstage_and_next);
508 register_action(editor, window, Editor::expand_all_diff_hunks);
509 register_action(editor, window, Editor::collapse_all_diff_hunks);
510 register_action(editor, window, Editor::go_to_previous_change);
511 register_action(editor, window, Editor::go_to_next_change);
512 register_action(editor, window, Editor::go_to_prev_reference);
513 register_action(editor, window, Editor::go_to_next_reference);
514
515 register_action(editor, window, |editor, action, window, cx| {
516 if let Some(task) = editor.format(action, window, cx) {
517 task.detach_and_notify_err(window, cx);
518 } else {
519 cx.propagate();
520 }
521 });
522 register_action(editor, window, |editor, action, window, cx| {
523 if let Some(task) = editor.format_selections(action, window, cx) {
524 task.detach_and_notify_err(window, cx);
525 } else {
526 cx.propagate();
527 }
528 });
529 register_action(editor, window, |editor, action, window, cx| {
530 if let Some(task) = editor.organize_imports(action, window, cx) {
531 task.detach_and_notify_err(window, cx);
532 } else {
533 cx.propagate();
534 }
535 });
536 register_action(editor, window, Editor::restart_language_server);
537 register_action(editor, window, Editor::stop_language_server);
538 register_action(editor, window, Editor::show_character_palette);
539 register_action(editor, window, |editor, action, window, cx| {
540 if let Some(task) = editor.confirm_completion(action, window, cx) {
541 task.detach_and_notify_err(window, cx);
542 } else {
543 cx.propagate();
544 }
545 });
546 register_action(editor, window, |editor, action, window, cx| {
547 if let Some(task) = editor.confirm_completion_replace(action, window, cx) {
548 task.detach_and_notify_err(window, cx);
549 } else {
550 cx.propagate();
551 }
552 });
553 register_action(editor, window, |editor, action, window, cx| {
554 if let Some(task) = editor.confirm_completion_insert(action, window, cx) {
555 task.detach_and_notify_err(window, cx);
556 } else {
557 cx.propagate();
558 }
559 });
560 register_action(editor, window, |editor, action, window, cx| {
561 if let Some(task) = editor.compose_completion(action, window, cx) {
562 task.detach_and_notify_err(window, cx);
563 } else {
564 cx.propagate();
565 }
566 });
567 register_action(editor, window, |editor, action, window, cx| {
568 if let Some(task) = editor.confirm_code_action(action, window, cx) {
569 task.detach_and_notify_err(window, cx);
570 } else {
571 cx.propagate();
572 }
573 });
574 register_action(editor, window, |editor, action, window, cx| {
575 if let Some(task) = editor.rename(action, window, cx) {
576 task.detach_and_notify_err(window, cx);
577 } else {
578 cx.propagate();
579 }
580 });
581 register_action(editor, window, |editor, action, window, cx| {
582 if let Some(task) = editor.confirm_rename(action, window, cx) {
583 task.detach_and_notify_err(window, cx);
584 } else {
585 cx.propagate();
586 }
587 });
588 register_action(editor, window, |editor, action, window, cx| {
589 if let Some(task) = editor.find_all_references(action, window, cx) {
590 task.detach_and_log_err(cx);
591 } else {
592 cx.propagate();
593 }
594 });
595 register_action(editor, window, Editor::show_signature_help);
596 register_action(editor, window, Editor::signature_help_prev);
597 register_action(editor, window, Editor::signature_help_next);
598 register_action(editor, window, Editor::next_edit_prediction);
599 register_action(editor, window, Editor::previous_edit_prediction);
600 register_action(editor, window, Editor::show_edit_prediction);
601 register_action(editor, window, Editor::context_menu_first);
602 register_action(editor, window, Editor::context_menu_prev);
603 register_action(editor, window, Editor::context_menu_next);
604 register_action(editor, window, Editor::context_menu_last);
605 register_action(editor, window, Editor::display_cursor_names);
606 register_action(editor, window, Editor::unique_lines_case_insensitive);
607 register_action(editor, window, Editor::unique_lines_case_sensitive);
608 register_action(editor, window, Editor::accept_next_word_edit_prediction);
609 register_action(editor, window, Editor::accept_next_line_edit_prediction);
610 register_action(editor, window, Editor::accept_edit_prediction);
611 register_action(editor, window, Editor::restore_file);
612 register_action(editor, window, Editor::git_restore);
613 register_action(editor, window, Editor::apply_all_diff_hunks);
614 register_action(editor, window, Editor::apply_selected_diff_hunks);
615 register_action(editor, window, Editor::open_active_item_in_terminal);
616 register_action(editor, window, Editor::reload_file);
617 register_action(editor, window, Editor::spawn_nearest_task);
618 register_action(editor, window, Editor::insert_uuid_v4);
619 register_action(editor, window, Editor::insert_uuid_v7);
620 register_action(editor, window, Editor::open_selections_in_multibuffer);
621 register_action(editor, window, Editor::toggle_breakpoint);
622 register_action(editor, window, Editor::edit_log_breakpoint);
623 register_action(editor, window, Editor::enable_breakpoint);
624 register_action(editor, window, Editor::disable_breakpoint);
625 if editor.read(cx).enable_wrap_selections_in_tag(cx) {
626 register_action(editor, window, Editor::wrap_selections_in_tag);
627 }
628 }
629
630 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
631 let position_map = layout.position_map.clone();
632 window.on_key_event({
633 let editor = self.editor.clone();
634 move |event: &ModifiersChangedEvent, phase, window, cx| {
635 if phase != DispatchPhase::Bubble {
636 return;
637 }
638 editor.update(cx, |editor, cx| {
639 let inlay_hint_settings = inlay_hint_settings(
640 editor.selections.newest_anchor().head(),
641 &editor.buffer.read(cx).snapshot(cx),
642 cx,
643 );
644
645 if let Some(inlay_modifiers) = inlay_hint_settings
646 .toggle_on_modifiers_press
647 .as_ref()
648 .filter(|modifiers| modifiers.modified())
649 {
650 editor.refresh_inlay_hints(
651 InlayHintRefreshReason::ModifiersChanged(
652 inlay_modifiers == &event.modifiers,
653 ),
654 cx,
655 );
656 }
657
658 if editor.hover_state.focused(window, cx) {
659 return;
660 }
661
662 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
663 })
664 }
665 });
666 }
667
668 fn mouse_left_down(
669 editor: &mut Editor,
670 event: &MouseDownEvent,
671 position_map: &PositionMap,
672 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
673 window: &mut Window,
674 cx: &mut Context<Editor>,
675 ) {
676 if window.default_prevented() {
677 return;
678 }
679
680 let text_hitbox = &position_map.text_hitbox;
681 let gutter_hitbox = &position_map.gutter_hitbox;
682 let point_for_position = position_map.point_for_position(event.position);
683 let mut click_count = event.click_count;
684 let mut modifiers = event.modifiers;
685
686 if let Some(hovered_hunk) =
687 position_map
688 .display_hunks
689 .iter()
690 .find_map(|(hunk, hunk_hitbox)| match hunk {
691 DisplayDiffHunk::Folded { .. } => None,
692 DisplayDiffHunk::Unfolded {
693 multi_buffer_range, ..
694 } => hunk_hitbox
695 .as_ref()
696 .is_some_and(|hitbox| hitbox.is_hovered(window))
697 .then(|| multi_buffer_range.clone()),
698 })
699 {
700 editor.toggle_single_diff_hunk(hovered_hunk, cx);
701 cx.notify();
702 return;
703 } else if gutter_hitbox.is_hovered(window) {
704 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
705 } else if !text_hitbox.is_hovered(window) {
706 return;
707 }
708
709 if EditorSettings::get_global(cx)
710 .drag_and_drop_selection
711 .enabled
712 && click_count == 1
713 && !modifiers.shift
714 {
715 let newest_anchor = editor.selections.newest_anchor();
716 let snapshot = editor.snapshot(window, cx);
717 let selection = newest_anchor.map(|anchor| anchor.to_display_point(&snapshot));
718 if point_for_position.intersects_selection(&selection) {
719 editor.selection_drag_state = SelectionDragState::ReadyToDrag {
720 selection: newest_anchor.clone(),
721 click_position: event.position,
722 mouse_down_time: Instant::now(),
723 };
724 cx.stop_propagation();
725 return;
726 }
727 }
728
729 let is_singleton = editor.buffer().read(cx).is_singleton();
730
731 if click_count == 2 && !is_singleton {
732 match EditorSettings::get_global(cx).double_click_in_multibuffer {
733 DoubleClickInMultibuffer::Select => {
734 // do nothing special on double click, all selection logic is below
735 }
736 DoubleClickInMultibuffer::Open => {
737 if modifiers.alt {
738 // if double click is made with alt, pretend it's a regular double click without opening and alt,
739 // and run the selection logic.
740 modifiers.alt = false;
741 } else {
742 let scroll_position_row = position_map.scroll_position.y;
743 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
744 / position_map.line_height)
745 as f64
746 + position_map.scroll_position.y)
747 as u32;
748 let multi_buffer_row = position_map
749 .snapshot
750 .display_point_to_point(
751 DisplayPoint::new(DisplayRow(display_row), 0),
752 Bias::Right,
753 )
754 .row;
755 let line_offset_from_top = display_row - scroll_position_row as u32;
756 // if double click is made without alt, open the corresponding excerp
757 editor.open_excerpts_common(
758 Some(JumpData::MultiBufferRow {
759 row: MultiBufferRow(multi_buffer_row),
760 line_offset_from_top,
761 }),
762 false,
763 window,
764 cx,
765 );
766 return;
767 }
768 }
769 }
770 }
771
772 if !is_singleton {
773 let display_row = (ScrollPixelOffset::from(
774 (event.position - gutter_hitbox.bounds.origin).y / position_map.line_height,
775 ) + position_map.scroll_position.y) as u32;
776 let multi_buffer_row = position_map
777 .snapshot
778 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
779 .row;
780 if line_numbers
781 .get(&MultiBufferRow(multi_buffer_row))
782 .is_some_and(|line_layout| {
783 line_layout.segments.iter().any(|segment| {
784 segment
785 .hitbox
786 .as_ref()
787 .is_some_and(|hitbox| hitbox.contains(&event.position))
788 })
789 })
790 {
791 let line_offset_from_top = display_row - position_map.scroll_position.y as u32;
792
793 editor.open_excerpts_common(
794 Some(JumpData::MultiBufferRow {
795 row: MultiBufferRow(multi_buffer_row),
796 line_offset_from_top,
797 }),
798 modifiers.alt,
799 window,
800 cx,
801 );
802 cx.stop_propagation();
803 return;
804 }
805 }
806
807 let position = point_for_position.previous_valid;
808 if let Some(mode) = Editor::columnar_selection_mode(&modifiers, cx) {
809 editor.select(
810 SelectPhase::BeginColumnar {
811 position,
812 reset: match mode {
813 ColumnarMode::FromMouse => true,
814 ColumnarMode::FromSelection => false,
815 },
816 mode,
817 goal_column: point_for_position.exact_unclipped.column(),
818 },
819 window,
820 cx,
821 );
822 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
823 {
824 editor.select(
825 SelectPhase::Extend {
826 position,
827 click_count,
828 },
829 window,
830 cx,
831 );
832 } else {
833 editor.select(
834 SelectPhase::Begin {
835 position,
836 add: Editor::is_alt_pressed(&modifiers, cx),
837 click_count,
838 },
839 window,
840 cx,
841 );
842 }
843 cx.stop_propagation();
844 }
845
846 fn mouse_right_down(
847 editor: &mut Editor,
848 event: &MouseDownEvent,
849 position_map: &PositionMap,
850 window: &mut Window,
851 cx: &mut Context<Editor>,
852 ) {
853 if position_map.gutter_hitbox.is_hovered(window) {
854 let gutter_right_padding = editor.gutter_dimensions.right_padding;
855 let hitbox = &position_map.gutter_hitbox;
856
857 if event.position.x <= hitbox.bounds.right() - gutter_right_padding {
858 let point_for_position = position_map.point_for_position(event.position);
859 editor.set_breakpoint_context_menu(
860 point_for_position.previous_valid.row(),
861 None,
862 event.position,
863 window,
864 cx,
865 );
866 }
867 return;
868 }
869
870 if !position_map.text_hitbox.is_hovered(window) {
871 return;
872 }
873
874 let point_for_position = position_map.point_for_position(event.position);
875 mouse_context_menu::deploy_context_menu(
876 editor,
877 Some(event.position),
878 point_for_position.previous_valid,
879 window,
880 cx,
881 );
882 cx.stop_propagation();
883 }
884
885 fn mouse_middle_down(
886 editor: &mut Editor,
887 event: &MouseDownEvent,
888 position_map: &PositionMap,
889 window: &mut Window,
890 cx: &mut Context<Editor>,
891 ) {
892 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
893 return;
894 }
895
896 let point_for_position = position_map.point_for_position(event.position);
897 let position = point_for_position.previous_valid;
898
899 editor.select(
900 SelectPhase::BeginColumnar {
901 position,
902 reset: true,
903 mode: ColumnarMode::FromMouse,
904 goal_column: point_for_position.exact_unclipped.column(),
905 },
906 window,
907 cx,
908 );
909 }
910
911 fn mouse_up(
912 editor: &mut Editor,
913 event: &MouseUpEvent,
914 position_map: &PositionMap,
915 window: &mut Window,
916 cx: &mut Context<Editor>,
917 ) {
918 let text_hitbox = &position_map.text_hitbox;
919 let end_selection = editor.has_pending_selection();
920 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
921 let point_for_position = position_map.point_for_position(event.position);
922
923 match editor.selection_drag_state {
924 SelectionDragState::ReadyToDrag {
925 selection: _,
926 ref click_position,
927 mouse_down_time: _,
928 } => {
929 if event.position == *click_position {
930 editor.select(
931 SelectPhase::Begin {
932 position: point_for_position.previous_valid,
933 add: false,
934 click_count: 1, // ready to drag state only occurs on click count 1
935 },
936 window,
937 cx,
938 );
939 editor.selection_drag_state = SelectionDragState::None;
940 cx.stop_propagation();
941 return;
942 } else {
943 debug_panic!("drag state can never be in ready state after drag")
944 }
945 }
946 SelectionDragState::Dragging { ref selection, .. } => {
947 let snapshot = editor.snapshot(window, cx);
948 let selection_display = selection.map(|anchor| anchor.to_display_point(&snapshot));
949 if !point_for_position.intersects_selection(&selection_display)
950 && text_hitbox.is_hovered(window)
951 {
952 let is_cut = !(cfg!(target_os = "macos") && event.modifiers.alt
953 || cfg!(not(target_os = "macos")) && event.modifiers.control);
954 editor.move_selection_on_drop(
955 &selection.clone(),
956 point_for_position.previous_valid,
957 is_cut,
958 window,
959 cx,
960 );
961 }
962 editor.selection_drag_state = SelectionDragState::None;
963 cx.stop_propagation();
964 cx.notify();
965 return;
966 }
967 _ => {}
968 }
969
970 if end_selection {
971 editor.select(SelectPhase::End, window, cx);
972 }
973
974 if end_selection && pending_nonempty_selections {
975 cx.stop_propagation();
976 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
977 && event.button == MouseButton::Middle
978 {
979 #[allow(
980 clippy::collapsible_if,
981 clippy::needless_return,
982 reason = "The cfg-block below makes this a false positive"
983 )]
984 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
985 return;
986 }
987
988 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
989 if EditorSettings::get_global(cx).middle_click_paste {
990 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
991 let point_for_position = position_map.point_for_position(event.position);
992 let position = point_for_position.previous_valid;
993
994 editor.select(
995 SelectPhase::Begin {
996 position,
997 add: false,
998 click_count: 1,
999 },
1000 window,
1001 cx,
1002 );
1003 editor.insert(&text, window, cx);
1004 }
1005 cx.stop_propagation()
1006 }
1007 }
1008 }
1009
1010 fn click(
1011 editor: &mut Editor,
1012 event: &ClickEvent,
1013 position_map: &PositionMap,
1014 window: &mut Window,
1015 cx: &mut Context<Editor>,
1016 ) {
1017 let text_hitbox = &position_map.text_hitbox;
1018 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
1019
1020 let hovered_link_modifier = Editor::is_cmd_or_ctrl_pressed(&event.modifiers(), cx);
1021 let mouse_down_hovered_link_modifier = if let ClickEvent::Mouse(mouse_event) = event {
1022 Editor::is_cmd_or_ctrl_pressed(&mouse_event.down.modifiers, cx)
1023 } else {
1024 true
1025 };
1026
1027 if let Some(mouse_position) = event.mouse_position()
1028 && !pending_nonempty_selections
1029 && hovered_link_modifier
1030 && mouse_down_hovered_link_modifier
1031 && text_hitbox.is_hovered(window)
1032 {
1033 let point = position_map.point_for_position(mouse_position);
1034 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
1035 editor.selection_drag_state = SelectionDragState::None;
1036
1037 cx.stop_propagation();
1038 }
1039 }
1040
1041 fn pressure_click(
1042 editor: &mut Editor,
1043 event: &MousePressureEvent,
1044 position_map: &PositionMap,
1045 window: &mut Window,
1046 cx: &mut Context<Editor>,
1047 ) {
1048 let text_hitbox = &position_map.text_hitbox;
1049 let force_click_possible =
1050 matches!(editor.prev_pressure_stage, Some(PressureStage::Normal))
1051 && event.stage == PressureStage::Force;
1052
1053 editor.prev_pressure_stage = Some(event.stage);
1054
1055 if force_click_possible && text_hitbox.is_hovered(window) {
1056 let point = position_map.point_for_position(event.position);
1057 editor.handle_click_hovered_link(point, event.modifiers, window, cx);
1058 editor.selection_drag_state = SelectionDragState::None;
1059 cx.stop_propagation();
1060 }
1061 }
1062
1063 fn mouse_dragged(
1064 editor: &mut Editor,
1065 event: &MouseMoveEvent,
1066 position_map: &PositionMap,
1067 window: &mut Window,
1068 cx: &mut Context<Editor>,
1069 ) {
1070 if !editor.has_pending_selection()
1071 && matches!(editor.selection_drag_state, SelectionDragState::None)
1072 {
1073 return;
1074 }
1075
1076 let point_for_position = position_map.point_for_position(event.position);
1077 let text_hitbox = &position_map.text_hitbox;
1078
1079 let scroll_delta = {
1080 let text_bounds = text_hitbox.bounds;
1081 let mut scroll_delta = gpui::Point::<f32>::default();
1082 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
1083 let top = text_bounds.origin.y + vertical_margin;
1084 let bottom = text_bounds.bottom_left().y - vertical_margin;
1085 if event.position.y < top {
1086 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
1087 }
1088 if event.position.y > bottom {
1089 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
1090 }
1091
1092 // We need horizontal width of text
1093 let style = editor.style.clone().unwrap_or_default();
1094 let font_id = window.text_system().resolve_font(&style.text.font());
1095 let font_size = style.text.font_size.to_pixels(window.rem_size());
1096 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
1097
1098 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
1099
1100 let scroll_space: Pixels = scroll_margin_x * em_width;
1101
1102 let left = text_bounds.origin.x + scroll_space;
1103 let right = text_bounds.top_right().x - scroll_space;
1104
1105 if event.position.x < left {
1106 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
1107 }
1108 if event.position.x > right {
1109 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
1110 }
1111 scroll_delta
1112 };
1113
1114 if !editor.has_pending_selection() {
1115 let drop_anchor = position_map
1116 .snapshot
1117 .display_point_to_anchor(point_for_position.previous_valid, Bias::Left);
1118 match editor.selection_drag_state {
1119 SelectionDragState::Dragging {
1120 ref mut drop_cursor,
1121 ref mut hide_drop_cursor,
1122 ..
1123 } => {
1124 drop_cursor.start = drop_anchor;
1125 drop_cursor.end = drop_anchor;
1126 *hide_drop_cursor = !text_hitbox.is_hovered(window);
1127 editor.apply_scroll_delta(scroll_delta, window, cx);
1128 cx.notify();
1129 }
1130 SelectionDragState::ReadyToDrag {
1131 ref selection,
1132 ref click_position,
1133 ref mouse_down_time,
1134 } => {
1135 let drag_and_drop_delay = Duration::from_millis(
1136 EditorSettings::get_global(cx)
1137 .drag_and_drop_selection
1138 .delay
1139 .0,
1140 );
1141 if mouse_down_time.elapsed() >= drag_and_drop_delay {
1142 let drop_cursor = Selection {
1143 id: post_inc(&mut editor.selections.next_selection_id()),
1144 start: drop_anchor,
1145 end: drop_anchor,
1146 reversed: false,
1147 goal: SelectionGoal::None,
1148 };
1149 editor.selection_drag_state = SelectionDragState::Dragging {
1150 selection: selection.clone(),
1151 drop_cursor,
1152 hide_drop_cursor: false,
1153 };
1154 editor.apply_scroll_delta(scroll_delta, window, cx);
1155 cx.notify();
1156 } else {
1157 let click_point = position_map.point_for_position(*click_position);
1158 editor.selection_drag_state = SelectionDragState::None;
1159 editor.select(
1160 SelectPhase::Begin {
1161 position: click_point.previous_valid,
1162 add: false,
1163 click_count: 1,
1164 },
1165 window,
1166 cx,
1167 );
1168 editor.select(
1169 SelectPhase::Update {
1170 position: point_for_position.previous_valid,
1171 goal_column: point_for_position.exact_unclipped.column(),
1172 scroll_delta,
1173 },
1174 window,
1175 cx,
1176 );
1177 }
1178 }
1179 _ => {}
1180 }
1181 } else {
1182 editor.select(
1183 SelectPhase::Update {
1184 position: point_for_position.previous_valid,
1185 goal_column: point_for_position.exact_unclipped.column(),
1186 scroll_delta,
1187 },
1188 window,
1189 cx,
1190 );
1191 }
1192 }
1193
1194 pub(crate) fn mouse_moved(
1195 editor: &mut Editor,
1196 event: &MouseMoveEvent,
1197 position_map: &PositionMap,
1198 window: &mut Window,
1199 cx: &mut Context<Editor>,
1200 ) {
1201 let text_hitbox = &position_map.text_hitbox;
1202 let gutter_hitbox = &position_map.gutter_hitbox;
1203 let modifiers = event.modifiers;
1204 let text_hovered = text_hitbox.is_hovered(window);
1205 let gutter_hovered = gutter_hitbox.bounds.contains(&event.position);
1206 editor.set_gutter_hovered(gutter_hovered, cx);
1207 editor.show_mouse_cursor(cx);
1208
1209 let point_for_position = position_map.point_for_position(event.position);
1210 let valid_point = point_for_position.previous_valid;
1211
1212 let hovered_diff_control = position_map
1213 .diff_hunk_control_bounds
1214 .iter()
1215 .find(|(_, bounds)| bounds.contains(&event.position))
1216 .map(|(row, _)| *row);
1217
1218 let hovered_diff_hunk_row = if let Some(control_row) = hovered_diff_control {
1219 Some(control_row)
1220 } else if text_hovered {
1221 let current_row = valid_point.row();
1222 position_map.display_hunks.iter().find_map(|(hunk, _)| {
1223 if let DisplayDiffHunk::Unfolded {
1224 display_row_range, ..
1225 } = hunk
1226 {
1227 if display_row_range.contains(¤t_row) {
1228 Some(display_row_range.start)
1229 } else {
1230 None
1231 }
1232 } else {
1233 None
1234 }
1235 })
1236 } else {
1237 None
1238 };
1239
1240 if hovered_diff_hunk_row != editor.hovered_diff_hunk_row {
1241 editor.hovered_diff_hunk_row = hovered_diff_hunk_row;
1242 cx.notify();
1243 }
1244
1245 if let Some((bounds, buffer_id, blame_entry)) = &position_map.inline_blame_bounds {
1246 let mouse_over_inline_blame = bounds.contains(&event.position);
1247 let mouse_over_popover = editor
1248 .inline_blame_popover
1249 .as_ref()
1250 .and_then(|state| state.popover_bounds)
1251 .is_some_and(|bounds| bounds.contains(&event.position));
1252 let keyboard_grace = editor
1253 .inline_blame_popover
1254 .as_ref()
1255 .is_some_and(|state| state.keyboard_grace);
1256
1257 if mouse_over_inline_blame || mouse_over_popover {
1258 editor.show_blame_popover(*buffer_id, blame_entry, event.position, false, cx);
1259 } else if !keyboard_grace {
1260 editor.hide_blame_popover(false, cx);
1261 }
1262 } else {
1263 let keyboard_grace = editor
1264 .inline_blame_popover
1265 .as_ref()
1266 .is_some_and(|state| state.keyboard_grace);
1267 if !keyboard_grace {
1268 editor.hide_blame_popover(false, cx);
1269 }
1270 }
1271
1272 let breakpoint_indicator = if gutter_hovered {
1273 let buffer_anchor = position_map
1274 .snapshot
1275 .display_point_to_anchor(valid_point, Bias::Left);
1276
1277 if let Some((buffer_snapshot, file)) = position_map
1278 .snapshot
1279 .buffer_snapshot()
1280 .buffer_for_excerpt(buffer_anchor.excerpt_id)
1281 .and_then(|buffer| buffer.file().map(|file| (buffer, file)))
1282 {
1283 let as_point = text::ToPoint::to_point(&buffer_anchor.text_anchor, buffer_snapshot);
1284
1285 let is_visible = editor
1286 .gutter_breakpoint_indicator
1287 .0
1288 .is_some_and(|indicator| indicator.is_active);
1289
1290 let has_existing_breakpoint =
1291 editor.breakpoint_store.as_ref().is_some_and(|store| {
1292 let Some(project) = &editor.project else {
1293 return false;
1294 };
1295 let Some(abs_path) = project.read(cx).absolute_path(
1296 &ProjectPath {
1297 path: file.path().clone(),
1298 worktree_id: file.worktree_id(cx),
1299 },
1300 cx,
1301 ) else {
1302 return false;
1303 };
1304 store
1305 .read(cx)
1306 .breakpoint_at_row(&abs_path, as_point.row, cx)
1307 .is_some()
1308 });
1309
1310 if !is_visible {
1311 editor.gutter_breakpoint_indicator.1.get_or_insert_with(|| {
1312 cx.spawn(async move |this, cx| {
1313 cx.background_executor()
1314 .timer(Duration::from_millis(200))
1315 .await;
1316
1317 this.update(cx, |this, cx| {
1318 if let Some(indicator) = this.gutter_breakpoint_indicator.0.as_mut()
1319 {
1320 indicator.is_active = true;
1321 cx.notify();
1322 }
1323 })
1324 .ok();
1325 })
1326 });
1327 }
1328
1329 Some(PhantomBreakpointIndicator {
1330 display_row: valid_point.row(),
1331 is_active: is_visible,
1332 collides_with_existing_breakpoint: has_existing_breakpoint,
1333 })
1334 } else {
1335 editor.gutter_breakpoint_indicator.1 = None;
1336 None
1337 }
1338 } else {
1339 editor.gutter_breakpoint_indicator.1 = None;
1340 None
1341 };
1342
1343 if &breakpoint_indicator != &editor.gutter_breakpoint_indicator.0 {
1344 editor.gutter_breakpoint_indicator.0 = breakpoint_indicator;
1345 cx.notify();
1346 }
1347
1348 // Don't trigger hover popover if mouse is hovering over context menu
1349 if text_hovered {
1350 editor.update_hovered_link(
1351 point_for_position,
1352 &position_map.snapshot,
1353 modifiers,
1354 window,
1355 cx,
1356 );
1357
1358 if let Some(point) = point_for_position.as_valid() {
1359 let anchor = position_map
1360 .snapshot
1361 .buffer_snapshot()
1362 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
1363 hover_at(editor, Some(anchor), window, cx);
1364 Self::update_visible_cursor(editor, point, position_map, window, cx);
1365 } else {
1366 editor.update_inlay_link_and_hover_points(
1367 &position_map.snapshot,
1368 point_for_position,
1369 modifiers.secondary(),
1370 modifiers.shift,
1371 window,
1372 cx,
1373 );
1374 }
1375 } else {
1376 editor.hide_hovered_link(cx);
1377 hover_at(editor, None, window, cx);
1378 }
1379 }
1380
1381 fn update_visible_cursor(
1382 editor: &mut Editor,
1383 point: DisplayPoint,
1384 position_map: &PositionMap,
1385 window: &mut Window,
1386 cx: &mut Context<Editor>,
1387 ) {
1388 let snapshot = &position_map.snapshot;
1389 let Some(hub) = editor.collaboration_hub() else {
1390 return;
1391 };
1392 let start = snapshot.display_snapshot.clip_point(
1393 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
1394 Bias::Left,
1395 );
1396 let end = snapshot.display_snapshot.clip_point(
1397 DisplayPoint::new(
1398 point.row(),
1399 (point.column() + 1).min(snapshot.line_len(point.row())),
1400 ),
1401 Bias::Right,
1402 );
1403
1404 let range = snapshot
1405 .buffer_snapshot()
1406 .anchor_before(start.to_point(&snapshot.display_snapshot))
1407 ..snapshot
1408 .buffer_snapshot()
1409 .anchor_after(end.to_point(&snapshot.display_snapshot));
1410
1411 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
1412 return;
1413 };
1414 let key = crate::HoveredCursor {
1415 replica_id: selection.replica_id,
1416 selection_id: selection.selection.id,
1417 };
1418 editor.hovered_cursors.insert(
1419 key.clone(),
1420 cx.spawn_in(window, async move |editor, cx| {
1421 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
1422 editor
1423 .update(cx, |editor, cx| {
1424 editor.hovered_cursors.remove(&key);
1425 cx.notify();
1426 })
1427 .ok();
1428 }),
1429 );
1430 cx.notify()
1431 }
1432
1433 fn layout_selections(
1434 &self,
1435 start_anchor: Anchor,
1436 end_anchor: Anchor,
1437 local_selections: &[Selection<Point>],
1438 snapshot: &EditorSnapshot,
1439 start_row: DisplayRow,
1440 end_row: DisplayRow,
1441 window: &mut Window,
1442 cx: &mut App,
1443 ) -> (
1444 Vec<(PlayerColor, Vec<SelectionLayout>)>,
1445 BTreeMap<DisplayRow, LineHighlightSpec>,
1446 Option<DisplayPoint>,
1447 ) {
1448 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1449 let mut active_rows = BTreeMap::new();
1450 let mut newest_selection_head = None;
1451
1452 let Some(editor_with_selections) = self.editor_with_selections(cx) else {
1453 return (selections, active_rows, newest_selection_head);
1454 };
1455
1456 editor_with_selections.update(cx, |editor, cx| {
1457 if editor.show_local_selections {
1458 let mut layouts = Vec::new();
1459 let newest = editor.selections.newest(&editor.display_snapshot(cx));
1460 for selection in local_selections.iter().cloned() {
1461 let is_empty = selection.start == selection.end;
1462 let is_newest = selection == newest;
1463
1464 let layout = SelectionLayout::new(
1465 selection,
1466 editor.selections.line_mode(),
1467 editor.is_vim_mode_enabled(cx),
1468 editor.cursor_shape,
1469 &snapshot.display_snapshot,
1470 is_newest,
1471 editor.leader_id.is_none(),
1472 None,
1473 );
1474 if is_newest {
1475 newest_selection_head = Some(layout.head);
1476 }
1477
1478 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1479 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1480 {
1481 let contains_non_empty_selection = active_rows
1482 .entry(DisplayRow(row))
1483 .or_insert_with(LineHighlightSpec::default);
1484 contains_non_empty_selection.selection |= !is_empty;
1485 }
1486 layouts.push(layout);
1487 }
1488
1489 let mut player = editor.current_user_player_color(cx);
1490 if !editor.is_focused(window) {
1491 const UNFOCUS_EDITOR_SELECTION_OPACITY: f32 = 0.5;
1492 player.selection = player.selection.opacity(UNFOCUS_EDITOR_SELECTION_OPACITY);
1493 }
1494 selections.push((player, layouts));
1495
1496 if let SelectionDragState::Dragging {
1497 ref selection,
1498 ref drop_cursor,
1499 ref hide_drop_cursor,
1500 } = editor.selection_drag_state
1501 && !hide_drop_cursor
1502 && (drop_cursor
1503 .start
1504 .cmp(&selection.start, &snapshot.buffer_snapshot())
1505 .eq(&Ordering::Less)
1506 || drop_cursor
1507 .end
1508 .cmp(&selection.end, &snapshot.buffer_snapshot())
1509 .eq(&Ordering::Greater))
1510 {
1511 let drag_cursor_layout = SelectionLayout::new(
1512 drop_cursor.clone(),
1513 false,
1514 editor.is_vim_mode_enabled(cx),
1515 CursorShape::Bar,
1516 &snapshot.display_snapshot,
1517 false,
1518 false,
1519 None,
1520 );
1521 let absent_color = cx.theme().players().absent();
1522 selections.push((absent_color, vec![drag_cursor_layout]));
1523 }
1524 }
1525
1526 if let Some(collaboration_hub) = &editor.collaboration_hub {
1527 // When following someone, render the local selections in their color.
1528 if let Some(leader_id) = editor.leader_id {
1529 match leader_id {
1530 CollaboratorId::PeerId(peer_id) => {
1531 if let Some(collaborator) =
1532 collaboration_hub.collaborators(cx).get(&peer_id)
1533 && let Some(participant_index) = collaboration_hub
1534 .user_participant_indices(cx)
1535 .get(&collaborator.user_id)
1536 && let Some((local_selection_style, _)) = selections.first_mut()
1537 {
1538 *local_selection_style = cx
1539 .theme()
1540 .players()
1541 .color_for_participant(participant_index.0);
1542 }
1543 }
1544 CollaboratorId::Agent => {
1545 if let Some((local_selection_style, _)) = selections.first_mut() {
1546 *local_selection_style = cx.theme().players().agent();
1547 }
1548 }
1549 }
1550 }
1551
1552 let mut remote_selections = HashMap::default();
1553 for selection in snapshot.remote_selections_in_range(
1554 &(start_anchor..end_anchor),
1555 collaboration_hub.as_ref(),
1556 cx,
1557 ) {
1558 // Don't re-render the leader's selections, since the local selections
1559 // match theirs.
1560 if Some(selection.collaborator_id) == editor.leader_id {
1561 continue;
1562 }
1563 let key = HoveredCursor {
1564 replica_id: selection.replica_id,
1565 selection_id: selection.selection.id,
1566 };
1567
1568 let is_shown =
1569 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1570
1571 remote_selections
1572 .entry(selection.replica_id)
1573 .or_insert((selection.color, Vec::new()))
1574 .1
1575 .push(SelectionLayout::new(
1576 selection.selection,
1577 selection.line_mode,
1578 editor.is_vim_mode_enabled(cx),
1579 selection.cursor_shape,
1580 &snapshot.display_snapshot,
1581 false,
1582 false,
1583 if is_shown { selection.user_name } else { None },
1584 ));
1585 }
1586
1587 selections.extend(remote_selections.into_values());
1588 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1589 let player = editor.current_user_player_color(cx);
1590 let layouts = snapshot
1591 .buffer_snapshot()
1592 .selections_in_range(&(start_anchor..end_anchor), true)
1593 .map(move |(_, line_mode, cursor_shape, selection)| {
1594 SelectionLayout::new(
1595 selection,
1596 line_mode,
1597 editor.is_vim_mode_enabled(cx),
1598 cursor_shape,
1599 &snapshot.display_snapshot,
1600 false,
1601 false,
1602 None,
1603 )
1604 })
1605 .collect::<Vec<_>>();
1606
1607 selections.push((player, layouts));
1608 }
1609 });
1610
1611 #[cfg(debug_assertions)]
1612 Self::layout_debug_ranges(
1613 &mut selections,
1614 start_anchor..end_anchor,
1615 &snapshot.display_snapshot,
1616 cx,
1617 );
1618
1619 (selections, active_rows, newest_selection_head)
1620 }
1621
1622 fn collect_cursors(
1623 &self,
1624 snapshot: &EditorSnapshot,
1625 cx: &mut App,
1626 ) -> Vec<(DisplayPoint, Hsla)> {
1627 let editor = self.editor.read(cx);
1628 let mut cursors = Vec::new();
1629 let mut skip_local = false;
1630 let mut add_cursor = |anchor: Anchor, color| {
1631 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1632 };
1633 // Remote cursors
1634 if let Some(collaboration_hub) = &editor.collaboration_hub {
1635 for remote_selection in snapshot.remote_selections_in_range(
1636 &(Anchor::min()..Anchor::max()),
1637 collaboration_hub.deref(),
1638 cx,
1639 ) {
1640 add_cursor(
1641 remote_selection.selection.head(),
1642 remote_selection.color.cursor,
1643 );
1644 if Some(remote_selection.collaborator_id) == editor.leader_id {
1645 skip_local = true;
1646 }
1647 }
1648 }
1649 // Local cursors
1650 if !skip_local {
1651 let color = cx.theme().players().local().cursor;
1652 editor
1653 .selections
1654 .disjoint_anchors()
1655 .iter()
1656 .for_each(|selection| {
1657 add_cursor(selection.head(), color);
1658 });
1659 if let Some(ref selection) = editor.selections.pending_anchor() {
1660 add_cursor(selection.head(), color);
1661 }
1662 }
1663 cursors
1664 }
1665
1666 fn layout_visible_cursors(
1667 &self,
1668 snapshot: &EditorSnapshot,
1669 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1670 row_block_types: &HashMap<DisplayRow, bool>,
1671 visible_display_row_range: Range<DisplayRow>,
1672 line_layouts: &[LineWithInvisibles],
1673 text_hitbox: &Hitbox,
1674 content_origin: gpui::Point<Pixels>,
1675 scroll_position: gpui::Point<ScrollOffset>,
1676 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
1677 line_height: Pixels,
1678 em_width: Pixels,
1679 em_advance: Pixels,
1680 autoscroll_containing_element: bool,
1681 window: &mut Window,
1682 cx: &mut App,
1683 ) -> Vec<CursorLayout> {
1684 let mut autoscroll_bounds = None;
1685 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1686 let mut cursors = Vec::new();
1687
1688 let show_local_cursors = editor.show_local_cursors(window, cx);
1689
1690 for (player_color, selections) in selections {
1691 for selection in selections {
1692 let cursor_position = selection.head;
1693
1694 let in_range = visible_display_row_range.contains(&cursor_position.row());
1695 if (selection.is_local && !show_local_cursors)
1696 || !in_range
1697 || row_block_types.get(&cursor_position.row()) == Some(&true)
1698 {
1699 continue;
1700 }
1701
1702 let cursor_row_layout = &line_layouts
1703 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1704 let cursor_column = cursor_position.column() as usize;
1705
1706 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1707 let mut block_width =
1708 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1709 if block_width == Pixels::ZERO {
1710 block_width = em_advance;
1711 }
1712 let block_text = if let CursorShape::Block = selection.cursor_shape {
1713 snapshot
1714 .grapheme_at(cursor_position)
1715 .or_else(|| {
1716 if snapshot.is_empty() {
1717 snapshot.placeholder_text().and_then(|s| {
1718 s.graphemes(true).next().map(|s| s.to_string().into())
1719 })
1720 } else {
1721 None
1722 }
1723 })
1724 .map(|text| {
1725 let len = text.len();
1726
1727 let mut font = cursor_row_layout
1728 .font_id_for_index(cursor_column)
1729 .and_then(|cursor_font_id| {
1730 window.text_system().get_font_for_id(cursor_font_id)
1731 })
1732 .unwrap_or(self.style.text.font());
1733 font.features = self.style.text.font_features.clone();
1734
1735 // Invert the text color for the block cursor. Ensure that the text
1736 // color is opaque enough to be visible against the background color.
1737 //
1738 // 0.75 is an arbitrary threshold to determine if the background color is
1739 // opaque enough to use as a text color.
1740 //
1741 // TODO: In the future we should ensure themes have a `text_inverse` color.
1742 let color = if cx.theme().colors().editor_background.a < 0.75 {
1743 match cx.theme().appearance {
1744 Appearance::Dark => Hsla::black(),
1745 Appearance::Light => Hsla::white(),
1746 }
1747 } else {
1748 cx.theme().colors().editor_background
1749 };
1750
1751 window.text_system().shape_line(
1752 text,
1753 cursor_row_layout.font_size,
1754 &[TextRun {
1755 len,
1756 font,
1757 color,
1758 ..Default::default()
1759 }],
1760 None,
1761 )
1762 })
1763 } else {
1764 None
1765 };
1766
1767 let x = cursor_character_x - scroll_pixel_position.x.into();
1768 let y = ((cursor_position.row().as_f64() - scroll_position.y)
1769 * ScrollPixelOffset::from(line_height))
1770 .into();
1771 if selection.is_newest {
1772 editor.pixel_position_of_newest_cursor = Some(point(
1773 text_hitbox.origin.x + x + block_width / 2.,
1774 text_hitbox.origin.y + y + line_height / 2.,
1775 ));
1776
1777 if autoscroll_containing_element {
1778 let top = text_hitbox.origin.y
1779 + ((cursor_position.row().as_f64() - scroll_position.y - 3.)
1780 .max(0.)
1781 * ScrollPixelOffset::from(line_height))
1782 .into();
1783 let left = text_hitbox.origin.x
1784 + ((cursor_position.column() as ScrollOffset
1785 - scroll_position.x
1786 - 3.)
1787 .max(0.)
1788 * ScrollPixelOffset::from(em_width))
1789 .into();
1790
1791 let bottom = text_hitbox.origin.y
1792 + ((cursor_position.row().as_f64() - scroll_position.y + 4.)
1793 * ScrollPixelOffset::from(line_height))
1794 .into();
1795 let right = text_hitbox.origin.x
1796 + ((cursor_position.column() as ScrollOffset - scroll_position.x
1797 + 4.)
1798 * ScrollPixelOffset::from(em_width))
1799 .into();
1800
1801 autoscroll_bounds =
1802 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1803 }
1804 }
1805
1806 let mut cursor = CursorLayout {
1807 color: player_color.cursor,
1808 block_width,
1809 origin: point(x, y),
1810 line_height,
1811 shape: selection.cursor_shape,
1812 block_text,
1813 cursor_name: None,
1814 };
1815 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1816 string: name,
1817 color: self.style.background,
1818 is_top_row: cursor_position.row().0 == 0,
1819 });
1820 cursor.layout(content_origin, cursor_name, window, cx);
1821 cursors.push(cursor);
1822 }
1823 }
1824
1825 cursors
1826 });
1827
1828 if let Some(bounds) = autoscroll_bounds {
1829 window.request_autoscroll(bounds);
1830 }
1831
1832 cursor_layouts
1833 }
1834
1835 fn layout_scrollbars(
1836 &self,
1837 snapshot: &EditorSnapshot,
1838 scrollbar_layout_information: &ScrollbarLayoutInformation,
1839 content_offset: gpui::Point<Pixels>,
1840 scroll_position: gpui::Point<ScrollOffset>,
1841 non_visible_cursors: bool,
1842 right_margin: Pixels,
1843 editor_width: Pixels,
1844 window: &mut Window,
1845 cx: &mut App,
1846 ) -> Option<EditorScrollbars> {
1847 let show_scrollbars = self.editor.read(cx).show_scrollbars;
1848 if (!show_scrollbars.horizontal && !show_scrollbars.vertical)
1849 || self.style.scrollbar_width.is_zero()
1850 {
1851 return None;
1852 }
1853
1854 // If a drag took place after we started dragging the scrollbar,
1855 // cancel the scrollbar drag.
1856 if cx.has_active_drag() {
1857 self.editor.update(cx, |editor, cx| {
1858 editor.scroll_manager.reset_scrollbar_state(cx)
1859 });
1860 }
1861
1862 let editor_settings = EditorSettings::get_global(cx);
1863 let scrollbar_settings = editor_settings.scrollbar;
1864 let show_scrollbars = match scrollbar_settings.show {
1865 ShowScrollbar::Auto => {
1866 let editor = self.editor.read(cx);
1867 let is_singleton = editor.buffer_kind(cx) == ItemBufferKind::Singleton;
1868 // Git
1869 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot().has_diff_hunks())
1870 ||
1871 // Buffer Search Results
1872 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1873 ||
1874 // Selected Text Occurrences
1875 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1876 ||
1877 // Selected Symbol Occurrences
1878 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1879 ||
1880 // Diagnostics
1881 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot().has_diagnostics())
1882 ||
1883 // Cursors out of sight
1884 non_visible_cursors
1885 ||
1886 // Scrollmanager
1887 editor.scroll_manager.scrollbars_visible()
1888 }
1889 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1890 ShowScrollbar::Always => true,
1891 ShowScrollbar::Never => return None,
1892 };
1893
1894 // The horizontal scrollbar is usually slightly offset to align nicely with
1895 // indent guides. However, this offset is not needed if indent guides are
1896 // disabled for the current editor.
1897 let content_offset = self
1898 .editor
1899 .read(cx)
1900 .show_indent_guides
1901 .is_none_or(|should_show| should_show)
1902 .then_some(content_offset)
1903 .unwrap_or_default();
1904
1905 Some(EditorScrollbars::from_scrollbar_axes(
1906 ScrollbarAxes {
1907 horizontal: scrollbar_settings.axes.horizontal
1908 && self.editor.read(cx).show_scrollbars.horizontal,
1909 vertical: scrollbar_settings.axes.vertical
1910 && self.editor.read(cx).show_scrollbars.vertical,
1911 },
1912 scrollbar_layout_information,
1913 content_offset,
1914 scroll_position,
1915 self.style.scrollbar_width,
1916 right_margin,
1917 editor_width,
1918 show_scrollbars,
1919 self.editor.read(cx).scroll_manager.active_scrollbar_state(),
1920 window,
1921 ))
1922 }
1923
1924 fn layout_minimap(
1925 &self,
1926 snapshot: &EditorSnapshot,
1927 minimap_width: Pixels,
1928 scroll_position: gpui::Point<f64>,
1929 scrollbar_layout_information: &ScrollbarLayoutInformation,
1930 scrollbar_layout: Option<&EditorScrollbars>,
1931 window: &mut Window,
1932 cx: &mut App,
1933 ) -> Option<MinimapLayout> {
1934 let minimap_editor = self.editor.read(cx).minimap().cloned()?;
1935
1936 let minimap_settings = EditorSettings::get_global(cx).minimap;
1937
1938 if minimap_settings.on_active_editor() {
1939 let active_editor = self.editor.read(cx).workspace().and_then(|ws| {
1940 ws.read(cx)
1941 .active_pane()
1942 .read(cx)
1943 .active_item()
1944 .and_then(|i| i.act_as::<Editor>(cx))
1945 });
1946 if active_editor.is_some_and(|e| e != self.editor) {
1947 return None;
1948 }
1949 }
1950
1951 if !snapshot.mode.is_full()
1952 || minimap_width.is_zero()
1953 || matches!(
1954 minimap_settings.show,
1955 ShowMinimap::Auto if scrollbar_layout.is_none_or(|layout| !layout.visible)
1956 )
1957 {
1958 return None;
1959 }
1960
1961 const MINIMAP_AXIS: ScrollbarAxis = ScrollbarAxis::Vertical;
1962
1963 let ScrollbarLayoutInformation {
1964 editor_bounds,
1965 scroll_range,
1966 glyph_grid_cell,
1967 } = scrollbar_layout_information;
1968
1969 let line_height = glyph_grid_cell.height;
1970 let scroll_position = scroll_position.along(MINIMAP_AXIS);
1971
1972 let top_right_anchor = scrollbar_layout
1973 .and_then(|layout| layout.vertical.as_ref())
1974 .map(|vertical_scrollbar| vertical_scrollbar.hitbox.origin)
1975 .unwrap_or_else(|| editor_bounds.top_right());
1976
1977 let thumb_state = self
1978 .editor
1979 .read_with(cx, |editor, _| editor.scroll_manager.minimap_thumb_state());
1980
1981 let show_thumb = match minimap_settings.thumb {
1982 MinimapThumb::Always => true,
1983 MinimapThumb::Hover => thumb_state.is_some(),
1984 };
1985
1986 let minimap_bounds = Bounds::from_corner_and_size(
1987 Corner::TopRight,
1988 top_right_anchor,
1989 size(minimap_width, editor_bounds.size.height),
1990 );
1991 let minimap_line_height = self.get_minimap_line_height(
1992 minimap_editor
1993 .read(cx)
1994 .text_style_refinement
1995 .as_ref()
1996 .and_then(|refinement| refinement.font_size)
1997 .unwrap_or(MINIMAP_FONT_SIZE),
1998 window,
1999 cx,
2000 );
2001 let minimap_height = minimap_bounds.size.height;
2002
2003 let visible_editor_lines = (editor_bounds.size.height / line_height) as f64;
2004 let total_editor_lines = (scroll_range.height / line_height) as f64;
2005 let minimap_lines = (minimap_height / minimap_line_height) as f64;
2006
2007 let minimap_scroll_top = MinimapLayout::calculate_minimap_top_offset(
2008 total_editor_lines,
2009 visible_editor_lines,
2010 minimap_lines,
2011 scroll_position,
2012 );
2013
2014 let layout = ScrollbarLayout::for_minimap(
2015 window.insert_hitbox(minimap_bounds, HitboxBehavior::Normal),
2016 visible_editor_lines,
2017 total_editor_lines,
2018 minimap_line_height,
2019 scroll_position,
2020 minimap_scroll_top,
2021 show_thumb,
2022 )
2023 .with_thumb_state(thumb_state);
2024
2025 minimap_editor.update(cx, |editor, cx| {
2026 editor.set_scroll_position(point(0., minimap_scroll_top), window, cx)
2027 });
2028
2029 // Required for the drop shadow to be visible
2030 const PADDING_OFFSET: Pixels = px(4.);
2031
2032 let mut minimap = div()
2033 .size_full()
2034 .shadow_xs()
2035 .px(PADDING_OFFSET)
2036 .child(minimap_editor)
2037 .into_any_element();
2038
2039 let extended_bounds = minimap_bounds.extend(Edges {
2040 right: PADDING_OFFSET,
2041 left: PADDING_OFFSET,
2042 ..Default::default()
2043 });
2044 minimap.layout_as_root(extended_bounds.size.into(), window, cx);
2045 window.with_absolute_element_offset(extended_bounds.origin, |window| {
2046 minimap.prepaint(window, cx)
2047 });
2048
2049 Some(MinimapLayout {
2050 minimap,
2051 thumb_layout: layout,
2052 thumb_border_style: minimap_settings.thumb_border,
2053 minimap_line_height,
2054 minimap_scroll_top,
2055 max_scroll_top: total_editor_lines,
2056 })
2057 }
2058
2059 fn get_minimap_line_height(
2060 &self,
2061 font_size: AbsoluteLength,
2062 window: &mut Window,
2063 cx: &mut App,
2064 ) -> Pixels {
2065 let rem_size = self.rem_size(cx).unwrap_or(window.rem_size());
2066 let mut text_style = self.style.text.clone();
2067 text_style.font_size = font_size;
2068 text_style.line_height_in_pixels(rem_size)
2069 }
2070
2071 fn get_minimap_width(
2072 &self,
2073 minimap_settings: &Minimap,
2074 scrollbars_shown: bool,
2075 text_width: Pixels,
2076 em_width: Pixels,
2077 font_size: Pixels,
2078 rem_size: Pixels,
2079 cx: &App,
2080 ) -> Option<Pixels> {
2081 if minimap_settings.show == ShowMinimap::Auto && !scrollbars_shown {
2082 return None;
2083 }
2084
2085 let minimap_font_size = self.editor.read_with(cx, |editor, cx| {
2086 editor.minimap().map(|minimap_editor| {
2087 minimap_editor
2088 .read(cx)
2089 .text_style_refinement
2090 .as_ref()
2091 .and_then(|refinement| refinement.font_size)
2092 .unwrap_or(MINIMAP_FONT_SIZE)
2093 })
2094 })?;
2095
2096 let minimap_em_width = em_width * (minimap_font_size.to_pixels(rem_size) / font_size);
2097
2098 let minimap_width = (text_width * MinimapLayout::MINIMAP_WIDTH_PCT)
2099 .min(minimap_em_width * minimap_settings.max_width_columns.get() as f32);
2100
2101 (minimap_width >= minimap_em_width * MinimapLayout::MINIMAP_MIN_WIDTH_COLUMNS)
2102 .then_some(minimap_width)
2103 }
2104
2105 fn prepaint_crease_toggles(
2106 &self,
2107 crease_toggles: &mut [Option<AnyElement>],
2108 line_height: Pixels,
2109 gutter_dimensions: &GutterDimensions,
2110 gutter_settings: crate::editor_settings::Gutter,
2111 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2112 gutter_hitbox: &Hitbox,
2113 window: &mut Window,
2114 cx: &mut App,
2115 ) {
2116 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
2117 if let Some(crease_toggle) = crease_toggle {
2118 debug_assert!(gutter_settings.folds);
2119 let available_space = size(
2120 AvailableSpace::MinContent,
2121 AvailableSpace::Definite(line_height * 0.55),
2122 );
2123 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
2124
2125 let position = point(
2126 gutter_dimensions.width - gutter_dimensions.right_padding,
2127 ix as f32 * line_height
2128 - (scroll_pixel_position.y % ScrollPixelOffset::from(line_height)).into(),
2129 );
2130 let centering_offset = point(
2131 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
2132 (line_height - crease_toggle_size.height) / 2.,
2133 );
2134 let origin = gutter_hitbox.origin + position + centering_offset;
2135 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
2136 }
2137 }
2138 }
2139
2140 fn prepaint_expand_toggles(
2141 &self,
2142 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
2143 window: &mut Window,
2144 cx: &mut App,
2145 ) {
2146 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
2147 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
2148 expand_toggle.layout_as_root(available_space, window, cx);
2149 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
2150 }
2151 }
2152
2153 fn prepaint_crease_trailers(
2154 &self,
2155 trailers: Vec<Option<AnyElement>>,
2156 lines: &[LineWithInvisibles],
2157 line_height: Pixels,
2158 content_origin: gpui::Point<Pixels>,
2159 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2160 em_width: Pixels,
2161 window: &mut Window,
2162 cx: &mut App,
2163 ) -> Vec<Option<CreaseTrailerLayout>> {
2164 trailers
2165 .into_iter()
2166 .enumerate()
2167 .map(|(ix, element)| {
2168 let mut element = element?;
2169 let available_space = size(
2170 AvailableSpace::MinContent,
2171 AvailableSpace::Definite(line_height),
2172 );
2173 let size = element.layout_as_root(available_space, window, cx);
2174
2175 let line = &lines[ix];
2176 let padding = if line.width == Pixels::ZERO {
2177 Pixels::ZERO
2178 } else {
2179 4. * em_width
2180 };
2181 let position = point(
2182 Pixels::from(scroll_pixel_position.x) + line.width + padding,
2183 ix as f32 * line_height
2184 - (scroll_pixel_position.y % ScrollPixelOffset::from(line_height)).into(),
2185 );
2186 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
2187 let origin = content_origin + position + centering_offset;
2188 element.prepaint_as_root(origin, available_space, window, cx);
2189 Some(CreaseTrailerLayout {
2190 element,
2191 bounds: Bounds::new(origin, size),
2192 })
2193 })
2194 .collect()
2195 }
2196
2197 // Folds contained in a hunk are ignored apart from shrinking visual size
2198 // If a fold contains any hunks then that fold line is marked as modified
2199 fn layout_gutter_diff_hunks(
2200 &self,
2201 line_height: Pixels,
2202 gutter_hitbox: &Hitbox,
2203 display_rows: Range<DisplayRow>,
2204 snapshot: &EditorSnapshot,
2205 window: &mut Window,
2206 cx: &mut App,
2207 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
2208 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
2209 let mut display_hunks = snapshot
2210 .display_diff_hunks_for_rows(display_rows, folded_buffers)
2211 .map(|hunk| (hunk, None))
2212 .collect::<Vec<_>>();
2213 let git_gutter_setting = ProjectSettings::get_global(cx).git.git_gutter;
2214 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
2215 for (hunk, hitbox) in &mut display_hunks {
2216 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
2217 let hunk_bounds =
2218 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
2219 *hitbox = Some(window.insert_hitbox(hunk_bounds, HitboxBehavior::BlockMouse));
2220 }
2221 }
2222 }
2223
2224 display_hunks
2225 }
2226
2227 fn layout_inline_diagnostics(
2228 &self,
2229 line_layouts: &[LineWithInvisibles],
2230 crease_trailers: &[Option<CreaseTrailerLayout>],
2231 row_block_types: &HashMap<DisplayRow, bool>,
2232 content_origin: gpui::Point<Pixels>,
2233 scroll_position: gpui::Point<ScrollOffset>,
2234 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2235 edit_prediction_popover_origin: Option<gpui::Point<Pixels>>,
2236 start_row: DisplayRow,
2237 end_row: DisplayRow,
2238 line_height: Pixels,
2239 em_width: Pixels,
2240 style: &EditorStyle,
2241 window: &mut Window,
2242 cx: &mut App,
2243 ) -> HashMap<DisplayRow, AnyElement> {
2244 let max_severity = match self
2245 .editor
2246 .read(cx)
2247 .inline_diagnostics_enabled()
2248 .then(|| {
2249 ProjectSettings::get_global(cx)
2250 .diagnostics
2251 .inline
2252 .max_severity
2253 .unwrap_or_else(|| self.editor.read(cx).diagnostics_max_severity)
2254 .into_lsp()
2255 })
2256 .flatten()
2257 {
2258 Some(max_severity) => max_severity,
2259 None => return HashMap::default(),
2260 };
2261
2262 let active_diagnostics_group =
2263 if let ActiveDiagnostic::Group(group) = &self.editor.read(cx).active_diagnostics {
2264 Some(group.group_id)
2265 } else {
2266 None
2267 };
2268
2269 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
2270 let snapshot = editor.snapshot(window, cx);
2271 editor
2272 .inline_diagnostics
2273 .iter()
2274 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
2275 .filter(|(_, diagnostic)| match active_diagnostics_group {
2276 Some(active_diagnostics_group) => {
2277 // Active diagnostics are all shown in the editor already, no need to display them inline
2278 diagnostic.group_id != active_diagnostics_group
2279 }
2280 None => true,
2281 })
2282 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
2283 .skip_while(|(point, _)| point.row() < start_row)
2284 .take_while(|(point, _)| point.row() < end_row)
2285 .filter(|(point, _)| !row_block_types.contains_key(&point.row()))
2286 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
2287 acc.entry(point.row())
2288 .or_insert_with(Vec::new)
2289 .push(diagnostic);
2290 acc
2291 })
2292 });
2293
2294 if diagnostics_by_rows.is_empty() {
2295 return HashMap::default();
2296 }
2297
2298 let severity_to_color = |sev: &lsp::DiagnosticSeverity| match sev {
2299 &lsp::DiagnosticSeverity::ERROR => Color::Error,
2300 &lsp::DiagnosticSeverity::WARNING => Color::Warning,
2301 &lsp::DiagnosticSeverity::INFORMATION => Color::Info,
2302 &lsp::DiagnosticSeverity::HINT => Color::Hint,
2303 _ => Color::Error,
2304 };
2305
2306 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
2307 let min_x = column_pixels(
2308 &self.style,
2309 ProjectSettings::get_global(cx)
2310 .diagnostics
2311 .inline
2312 .min_column as usize,
2313 window,
2314 );
2315
2316 let mut elements = HashMap::default();
2317 for (row, mut diagnostics) in diagnostics_by_rows {
2318 diagnostics.sort_by_key(|diagnostic| {
2319 (
2320 diagnostic.severity,
2321 std::cmp::Reverse(diagnostic.is_primary),
2322 diagnostic.start.row,
2323 diagnostic.start.column,
2324 )
2325 });
2326
2327 let Some(diagnostic_to_render) = diagnostics
2328 .iter()
2329 .find(|diagnostic| diagnostic.is_primary)
2330 .or_else(|| diagnostics.first())
2331 else {
2332 continue;
2333 };
2334
2335 let pos_y = content_origin.y + line_height * (row.0 as f64 - scroll_position.y) as f32;
2336
2337 let window_ix = row.0.saturating_sub(start_row.0) as usize;
2338 let pos_x = {
2339 let crease_trailer_layout = &crease_trailers[window_ix];
2340 let line_layout = &line_layouts[window_ix];
2341
2342 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
2343 crease_trailer.bounds.right()
2344 } else {
2345 Pixels::from(
2346 ScrollPixelOffset::from(content_origin.x + line_layout.width)
2347 - scroll_pixel_position.x,
2348 )
2349 };
2350
2351 let padded_line = line_end + padding;
2352 let min_start = Pixels::from(
2353 ScrollPixelOffset::from(content_origin.x + min_x) - scroll_pixel_position.x,
2354 );
2355
2356 cmp::max(padded_line, min_start)
2357 };
2358
2359 let behind_edit_prediction_popover = edit_prediction_popover_origin
2360 .as_ref()
2361 .is_some_and(|edit_prediction_popover_origin| {
2362 (pos_y..pos_y + line_height).contains(&edit_prediction_popover_origin.y)
2363 });
2364 let opacity = if behind_edit_prediction_popover {
2365 0.5
2366 } else {
2367 1.0
2368 };
2369
2370 let mut element = h_flex()
2371 .id(("diagnostic", row.0))
2372 .h(line_height)
2373 .w_full()
2374 .px_1()
2375 .rounded_xs()
2376 .opacity(opacity)
2377 .bg(severity_to_color(&diagnostic_to_render.severity)
2378 .color(cx)
2379 .opacity(0.05))
2380 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
2381 .text_sm()
2382 .font(style.text.font())
2383 .child(diagnostic_to_render.message.clone())
2384 .into_any();
2385
2386 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
2387
2388 elements.insert(row, element);
2389 }
2390
2391 elements
2392 }
2393
2394 fn layout_inline_code_actions(
2395 &self,
2396 display_point: DisplayPoint,
2397 content_origin: gpui::Point<Pixels>,
2398 scroll_position: gpui::Point<ScrollOffset>,
2399 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2400 line_height: Pixels,
2401 snapshot: &EditorSnapshot,
2402 window: &mut Window,
2403 cx: &mut App,
2404 ) -> Option<AnyElement> {
2405 if !snapshot
2406 .show_code_actions
2407 .unwrap_or(EditorSettings::get_global(cx).inline_code_actions)
2408 {
2409 return None;
2410 }
2411
2412 let icon_size = ui::IconSize::XSmall;
2413 let mut button = self.editor.update(cx, |editor, cx| {
2414 editor.available_code_actions.as_ref()?;
2415 let active = editor
2416 .context_menu
2417 .borrow()
2418 .as_ref()
2419 .and_then(|menu| {
2420 if let crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2421 deployed_from,
2422 ..
2423 }) = menu
2424 {
2425 deployed_from.as_ref()
2426 } else {
2427 None
2428 }
2429 })
2430 .is_some_and(|source| matches!(source, CodeActionSource::Indicator(..)));
2431 Some(editor.render_inline_code_actions(icon_size, display_point.row(), active, cx))
2432 })?;
2433
2434 let buffer_point = display_point.to_point(&snapshot.display_snapshot);
2435
2436 // do not show code action for folded line
2437 if snapshot.is_line_folded(MultiBufferRow(buffer_point.row)) {
2438 return None;
2439 }
2440
2441 // do not show code action for blank line with cursor
2442 let line_indent = snapshot
2443 .display_snapshot
2444 .buffer_snapshot()
2445 .line_indent_for_row(MultiBufferRow(buffer_point.row));
2446 if line_indent.is_line_blank() {
2447 return None;
2448 }
2449
2450 const INLINE_SLOT_CHAR_LIMIT: u32 = 4;
2451 const MAX_ALTERNATE_DISTANCE: u32 = 8;
2452
2453 let excerpt_id = snapshot
2454 .display_snapshot
2455 .buffer_snapshot()
2456 .excerpt_containing(buffer_point..buffer_point)
2457 .map(|excerpt| excerpt.id());
2458
2459 let is_valid_row = |row_candidate: u32| -> bool {
2460 // move to other row if folded row
2461 if snapshot.is_line_folded(MultiBufferRow(row_candidate)) {
2462 return false;
2463 }
2464 if buffer_point.row == row_candidate {
2465 // move to other row if cursor is in slot
2466 if buffer_point.column < INLINE_SLOT_CHAR_LIMIT {
2467 return false;
2468 }
2469 } else {
2470 let candidate_point = MultiBufferPoint {
2471 row: row_candidate,
2472 column: 0,
2473 };
2474 let candidate_excerpt_id = snapshot
2475 .display_snapshot
2476 .buffer_snapshot()
2477 .excerpt_containing(candidate_point..candidate_point)
2478 .map(|excerpt| excerpt.id());
2479 // move to other row if different excerpt
2480 if excerpt_id != candidate_excerpt_id {
2481 return false;
2482 }
2483 }
2484 let line_indent = snapshot
2485 .display_snapshot
2486 .buffer_snapshot()
2487 .line_indent_for_row(MultiBufferRow(row_candidate));
2488 // use this row if it's blank
2489 if line_indent.is_line_blank() {
2490 true
2491 } else {
2492 // use this row if code starts after slot
2493 let indent_size = snapshot
2494 .display_snapshot
2495 .buffer_snapshot()
2496 .indent_size_for_line(MultiBufferRow(row_candidate));
2497 indent_size.len >= INLINE_SLOT_CHAR_LIMIT
2498 }
2499 };
2500
2501 let new_buffer_row = if is_valid_row(buffer_point.row) {
2502 Some(buffer_point.row)
2503 } else {
2504 let max_row = snapshot.display_snapshot.buffer_snapshot().max_point().row;
2505 (1..=MAX_ALTERNATE_DISTANCE).find_map(|offset| {
2506 let row_above = buffer_point.row.saturating_sub(offset);
2507 let row_below = buffer_point.row + offset;
2508 if row_above != buffer_point.row && is_valid_row(row_above) {
2509 Some(row_above)
2510 } else if row_below <= max_row && is_valid_row(row_below) {
2511 Some(row_below)
2512 } else {
2513 None
2514 }
2515 })
2516 }?;
2517
2518 let new_display_row = snapshot
2519 .display_snapshot
2520 .point_to_display_point(
2521 Point {
2522 row: new_buffer_row,
2523 column: buffer_point.column,
2524 },
2525 text::Bias::Left,
2526 )
2527 .row();
2528
2529 let start_y = content_origin.y
2530 + (((new_display_row.as_f64() - scroll_position.y) as f32) * line_height)
2531 + (line_height / 2.0)
2532 - (icon_size.square(window, cx) / 2.);
2533 let start_x = (ScrollPixelOffset::from(content_origin.x) - scroll_pixel_position.x
2534 + ScrollPixelOffset::from(window.rem_size() * 0.1))
2535 .into();
2536
2537 let absolute_offset = gpui::point(start_x, start_y);
2538 button.layout_as_root(gpui::AvailableSpace::min_size(), window, cx);
2539 button.prepaint_as_root(
2540 absolute_offset,
2541 gpui::AvailableSpace::min_size(),
2542 window,
2543 cx,
2544 );
2545 Some(button)
2546 }
2547
2548 fn layout_inline_blame(
2549 &self,
2550 display_row: DisplayRow,
2551 row_info: &RowInfo,
2552 line_layout: &LineWithInvisibles,
2553 crease_trailer: Option<&CreaseTrailerLayout>,
2554 em_width: Pixels,
2555 content_origin: gpui::Point<Pixels>,
2556 scroll_position: gpui::Point<ScrollOffset>,
2557 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2558 line_height: Pixels,
2559 window: &mut Window,
2560 cx: &mut App,
2561 ) -> Option<InlineBlameLayout> {
2562 if !self
2563 .editor
2564 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
2565 {
2566 return None;
2567 }
2568
2569 let editor = self.editor.read(cx);
2570 let blame = editor.blame.clone()?;
2571 let padding = {
2572 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
2573
2574 let mut padding = ProjectSettings::get_global(cx).git.inline_blame.padding as f32;
2575
2576 if let Some(edit_prediction) = editor.active_edit_prediction.as_ref()
2577 && let EditPrediction::Edit {
2578 display_mode: EditDisplayMode::TabAccept,
2579 ..
2580 } = &edit_prediction.completion
2581 {
2582 padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS
2583 }
2584
2585 padding * em_width
2586 };
2587
2588 let (buffer_id, entry) = blame
2589 .update(cx, |blame, cx| {
2590 blame.blame_for_rows(&[*row_info], cx).next()
2591 })
2592 .flatten()?;
2593
2594 let mut element = render_inline_blame_entry(entry.clone(), &self.style, cx)?;
2595
2596 let start_y =
2597 content_origin.y + line_height * ((display_row.as_f64() - scroll_position.y) as f32);
2598
2599 let start_x = {
2600 let line_end = if let Some(crease_trailer) = crease_trailer {
2601 crease_trailer.bounds.right()
2602 } else {
2603 Pixels::from(
2604 ScrollPixelOffset::from(content_origin.x + line_layout.width)
2605 - scroll_pixel_position.x,
2606 )
2607 };
2608
2609 let padded_line_end = line_end + padding;
2610
2611 let min_column_in_pixels = column_pixels(
2612 &self.style,
2613 ProjectSettings::get_global(cx).git.inline_blame.min_column as usize,
2614 window,
2615 );
2616 let min_start = Pixels::from(
2617 ScrollPixelOffset::from(content_origin.x + min_column_in_pixels)
2618 - scroll_pixel_position.x,
2619 );
2620
2621 cmp::max(padded_line_end, min_start)
2622 };
2623
2624 let absolute_offset = point(start_x, start_y);
2625 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2626 let bounds = Bounds::new(absolute_offset, size);
2627
2628 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
2629
2630 Some(InlineBlameLayout {
2631 element,
2632 bounds,
2633 buffer_id,
2634 entry,
2635 })
2636 }
2637
2638 fn layout_blame_popover(
2639 &self,
2640 editor_snapshot: &EditorSnapshot,
2641 text_hitbox: &Hitbox,
2642 line_height: Pixels,
2643 window: &mut Window,
2644 cx: &mut App,
2645 ) {
2646 if !self.editor.read(cx).inline_blame_popover.is_some() {
2647 return;
2648 }
2649
2650 let Some(blame) = self.editor.read(cx).blame.clone() else {
2651 return;
2652 };
2653 let cursor_point = self
2654 .editor
2655 .read(cx)
2656 .selections
2657 .newest::<language::Point>(&editor_snapshot.display_snapshot)
2658 .head();
2659
2660 let Some((buffer, buffer_point, _)) = editor_snapshot
2661 .buffer_snapshot()
2662 .point_to_buffer_point(cursor_point)
2663 else {
2664 return;
2665 };
2666
2667 let row_info = RowInfo {
2668 buffer_id: Some(buffer.remote_id()),
2669 buffer_row: Some(buffer_point.row),
2670 ..Default::default()
2671 };
2672
2673 let Some((buffer_id, blame_entry)) = blame
2674 .update(cx, |blame, cx| blame.blame_for_rows(&[row_info], cx).next())
2675 .flatten()
2676 else {
2677 return;
2678 };
2679
2680 let Some((popover_state, target_point)) = self.editor.read_with(cx, |editor, _| {
2681 editor
2682 .inline_blame_popover
2683 .as_ref()
2684 .map(|state| (state.popover_state.clone(), state.position))
2685 }) else {
2686 return;
2687 };
2688
2689 let workspace = self
2690 .editor
2691 .read_with(cx, |editor, _| editor.workspace().map(|w| w.downgrade()));
2692
2693 let maybe_element = workspace.and_then(|workspace| {
2694 render_blame_entry_popover(
2695 blame_entry,
2696 popover_state.scroll_handle,
2697 popover_state.commit_message,
2698 popover_state.markdown,
2699 workspace,
2700 &blame,
2701 buffer_id,
2702 window,
2703 cx,
2704 )
2705 });
2706
2707 if let Some(mut element) = maybe_element {
2708 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2709 let overall_height = size.height + HOVER_POPOVER_GAP;
2710 let popover_origin = if target_point.y > overall_height {
2711 point(target_point.x, target_point.y - size.height)
2712 } else {
2713 point(
2714 target_point.x,
2715 target_point.y + line_height + HOVER_POPOVER_GAP,
2716 )
2717 };
2718
2719 let horizontal_offset = (text_hitbox.top_right().x
2720 - POPOVER_RIGHT_OFFSET
2721 - (popover_origin.x + size.width))
2722 .min(Pixels::ZERO);
2723
2724 let origin = point(popover_origin.x + horizontal_offset, popover_origin.y);
2725 let popover_bounds = Bounds::new(origin, size);
2726
2727 self.editor.update(cx, |editor, _| {
2728 if let Some(state) = &mut editor.inline_blame_popover {
2729 state.popover_bounds = Some(popover_bounds);
2730 }
2731 });
2732
2733 window.defer_draw(element, origin, 2);
2734 }
2735 }
2736
2737 fn layout_blame_entries(
2738 &self,
2739 buffer_rows: &[RowInfo],
2740 em_width: Pixels,
2741 scroll_position: gpui::Point<ScrollOffset>,
2742 line_height: Pixels,
2743 gutter_hitbox: &Hitbox,
2744 max_width: Option<Pixels>,
2745 window: &mut Window,
2746 cx: &mut App,
2747 ) -> Option<Vec<AnyElement>> {
2748 if !self
2749 .editor
2750 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
2751 {
2752 return None;
2753 }
2754
2755 let blame = self.editor.read(cx).blame.clone()?;
2756 let workspace = self.editor.read(cx).workspace()?;
2757 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
2758 blame.blame_for_rows(buffer_rows, cx).collect()
2759 });
2760
2761 let width = if let Some(max_width) = max_width {
2762 AvailableSpace::Definite(max_width)
2763 } else {
2764 AvailableSpace::MaxContent
2765 };
2766 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
2767 let start_x = em_width;
2768
2769 let mut last_used_color: Option<(Hsla, Oid)> = None;
2770 let blame_renderer = cx.global::<GlobalBlameRenderer>().0.clone();
2771
2772 let shaped_lines = blamed_rows
2773 .into_iter()
2774 .enumerate()
2775 .flat_map(|(ix, blame_entry)| {
2776 let (buffer_id, blame_entry) = blame_entry?;
2777 let mut element = render_blame_entry(
2778 ix,
2779 &blame,
2780 blame_entry,
2781 &self.style,
2782 &mut last_used_color,
2783 self.editor.clone(),
2784 workspace.clone(),
2785 buffer_id,
2786 &*blame_renderer,
2787 window,
2788 cx,
2789 )?;
2790
2791 let start_y = ix as f32 * line_height
2792 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height));
2793 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
2794
2795 element.prepaint_as_root(
2796 absolute_offset,
2797 size(width, AvailableSpace::MinContent),
2798 window,
2799 cx,
2800 );
2801
2802 Some(element)
2803 })
2804 .collect();
2805
2806 Some(shaped_lines)
2807 }
2808
2809 fn layout_indent_guides(
2810 &self,
2811 content_origin: gpui::Point<Pixels>,
2812 text_origin: gpui::Point<Pixels>,
2813 visible_buffer_range: Range<MultiBufferRow>,
2814 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2815 line_height: Pixels,
2816 snapshot: &DisplaySnapshot,
2817 window: &mut Window,
2818 cx: &mut App,
2819 ) -> Option<Vec<IndentGuideLayout>> {
2820 let indent_guides = self.editor.update(cx, |editor, cx| {
2821 editor.indent_guides(visible_buffer_range, snapshot, cx)
2822 })?;
2823
2824 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
2825 editor
2826 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
2827 .unwrap_or_default()
2828 });
2829
2830 Some(
2831 indent_guides
2832 .into_iter()
2833 .enumerate()
2834 .filter_map(|(i, indent_guide)| {
2835 let single_indent_width =
2836 column_pixels(&self.style, indent_guide.tab_size as usize, window);
2837 let total_width = single_indent_width * indent_guide.depth as f32;
2838 let start_x = Pixels::from(
2839 ScrollOffset::from(content_origin.x + total_width)
2840 - scroll_pixel_position.x,
2841 );
2842 if start_x >= text_origin.x {
2843 let (offset_y, length) = Self::calculate_indent_guide_bounds(
2844 indent_guide.start_row..indent_guide.end_row,
2845 line_height,
2846 snapshot,
2847 );
2848
2849 let start_y = Pixels::from(
2850 ScrollOffset::from(content_origin.y) + offset_y
2851 - scroll_pixel_position.y,
2852 );
2853
2854 Some(IndentGuideLayout {
2855 origin: point(start_x, start_y),
2856 length,
2857 single_indent_width,
2858 depth: indent_guide.depth,
2859 active: active_indent_guide_indices.contains(&i),
2860 settings: indent_guide.settings,
2861 })
2862 } else {
2863 None
2864 }
2865 })
2866 .collect(),
2867 )
2868 }
2869
2870 fn layout_wrap_guides(
2871 &self,
2872 em_advance: Pixels,
2873 scroll_position: gpui::Point<f64>,
2874 content_origin: gpui::Point<Pixels>,
2875 scrollbar_layout: Option<&EditorScrollbars>,
2876 vertical_scrollbar_width: Pixels,
2877 hitbox: &Hitbox,
2878 window: &Window,
2879 cx: &App,
2880 ) -> SmallVec<[(Pixels, bool); 2]> {
2881 let scroll_left = scroll_position.x as f32 * em_advance;
2882 let content_origin = content_origin.x;
2883 let horizontal_offset = content_origin - scroll_left;
2884 let vertical_scrollbar_width = scrollbar_layout
2885 .and_then(|layout| layout.visible.then_some(vertical_scrollbar_width))
2886 .unwrap_or_default();
2887
2888 self.editor
2889 .read(cx)
2890 .wrap_guides(cx)
2891 .into_iter()
2892 .flat_map(|(guide, active)| {
2893 let wrap_position = column_pixels(&self.style, guide, window);
2894 let wrap_guide_x = wrap_position + horizontal_offset;
2895 let display_wrap_guide = wrap_guide_x >= content_origin
2896 && wrap_guide_x <= hitbox.bounds.right() - vertical_scrollbar_width;
2897
2898 display_wrap_guide.then_some((wrap_guide_x, active))
2899 })
2900 .collect()
2901 }
2902
2903 fn calculate_indent_guide_bounds(
2904 row_range: Range<MultiBufferRow>,
2905 line_height: Pixels,
2906 snapshot: &DisplaySnapshot,
2907 ) -> (f64, gpui::Pixels) {
2908 let start_point = Point::new(row_range.start.0, 0);
2909 let end_point = Point::new(row_range.end.0, 0);
2910
2911 let row_range = start_point.to_display_point(snapshot).row()
2912 ..end_point.to_display_point(snapshot).row();
2913
2914 let mut prev_line = start_point;
2915 prev_line.row = prev_line.row.saturating_sub(1);
2916 let prev_line = prev_line.to_display_point(snapshot).row();
2917
2918 let mut cons_line = end_point;
2919 cons_line.row += 1;
2920 let cons_line = cons_line.to_display_point(snapshot).row();
2921
2922 let mut offset_y = row_range.start.as_f64() * f64::from(line_height);
2923 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
2924
2925 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
2926 if row_range.end == cons_line {
2927 length += line_height;
2928 }
2929
2930 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
2931 // we want to extend the indent guide to the start of the block.
2932 let mut block_height = 0;
2933 let mut block_offset = 0;
2934 let mut found_excerpt_header = false;
2935 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
2936 if matches!(
2937 block,
2938 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
2939 ) {
2940 found_excerpt_header = true;
2941 break;
2942 }
2943 block_offset += block.height();
2944 block_height += block.height();
2945 }
2946 if !found_excerpt_header {
2947 offset_y -= block_offset as f64 * f64::from(line_height);
2948 length += block_height as f32 * line_height;
2949 }
2950
2951 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
2952 // we want to ensure that the indent guide stops before the excerpt header.
2953 let mut block_height = 0;
2954 let mut found_excerpt_header = false;
2955 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
2956 if matches!(
2957 block,
2958 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
2959 ) {
2960 found_excerpt_header = true;
2961 }
2962 block_height += block.height();
2963 }
2964 if found_excerpt_header {
2965 length -= block_height as f32 * line_height;
2966 }
2967
2968 (offset_y, length)
2969 }
2970
2971 fn layout_breakpoints(
2972 &self,
2973 line_height: Pixels,
2974 range: Range<DisplayRow>,
2975 scroll_position: gpui::Point<ScrollOffset>,
2976 gutter_dimensions: &GutterDimensions,
2977 gutter_hitbox: &Hitbox,
2978 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2979 snapshot: &EditorSnapshot,
2980 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
2981 row_infos: &[RowInfo],
2982 window: &mut Window,
2983 cx: &mut App,
2984 ) -> Vec<AnyElement> {
2985 self.editor.update(cx, |editor, cx| {
2986 breakpoints
2987 .into_iter()
2988 .filter_map(|(display_row, (text_anchor, bp, state))| {
2989 if row_infos
2990 .get((display_row.0.saturating_sub(range.start.0)) as usize)
2991 .is_some_and(|row_info| {
2992 row_info.expand_info.is_some()
2993 || row_info
2994 .diff_status
2995 .is_some_and(|status| status.is_deleted())
2996 })
2997 {
2998 return None;
2999 }
3000
3001 if range.start > display_row || range.end < display_row {
3002 return None;
3003 }
3004
3005 let row =
3006 MultiBufferRow(DisplayPoint::new(display_row, 0).to_point(snapshot).row);
3007 if snapshot.is_line_folded(row) {
3008 return None;
3009 }
3010
3011 let button = editor.render_breakpoint(text_anchor, display_row, &bp, state, cx);
3012
3013 let button = prepaint_gutter_button(
3014 button,
3015 display_row,
3016 line_height,
3017 gutter_dimensions,
3018 scroll_position,
3019 gutter_hitbox,
3020 display_hunks,
3021 window,
3022 cx,
3023 );
3024 Some(button)
3025 })
3026 .collect_vec()
3027 })
3028 }
3029
3030 #[allow(clippy::too_many_arguments)]
3031 fn layout_run_indicators(
3032 &self,
3033 line_height: Pixels,
3034 range: Range<DisplayRow>,
3035 row_infos: &[RowInfo],
3036 scroll_position: gpui::Point<ScrollOffset>,
3037 gutter_dimensions: &GutterDimensions,
3038 gutter_hitbox: &Hitbox,
3039 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
3040 snapshot: &EditorSnapshot,
3041 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
3042 window: &mut Window,
3043 cx: &mut App,
3044 ) -> Vec<AnyElement> {
3045 self.editor.update(cx, |editor, cx| {
3046 let active_task_indicator_row =
3047 // TODO: add edit button on the right side of each row in the context menu
3048 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
3049 deployed_from,
3050 actions,
3051 ..
3052 })) = editor.context_menu.borrow().as_ref()
3053 {
3054 actions
3055 .tasks()
3056 .map(|tasks| tasks.position.to_display_point(snapshot).row())
3057 .or_else(|| match deployed_from {
3058 Some(CodeActionSource::Indicator(row)) => Some(*row),
3059 _ => None,
3060 })
3061 } else {
3062 None
3063 };
3064
3065 let offset_range_start =
3066 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
3067
3068 let offset_range_end =
3069 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
3070
3071 editor
3072 .tasks
3073 .iter()
3074 .filter_map(|(_, tasks)| {
3075 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot());
3076 if multibuffer_point < offset_range_start
3077 || multibuffer_point > offset_range_end
3078 {
3079 return None;
3080 }
3081 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
3082 let buffer_folded = snapshot
3083 .buffer_snapshot()
3084 .buffer_line_for_row(multibuffer_row)
3085 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
3086 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
3087 .unwrap_or(false);
3088 if buffer_folded {
3089 return None;
3090 }
3091
3092 if snapshot.is_line_folded(multibuffer_row) {
3093 // Skip folded indicators, unless it's the starting line of a fold.
3094 if multibuffer_row
3095 .0
3096 .checked_sub(1)
3097 .is_some_and(|previous_row| {
3098 snapshot.is_line_folded(MultiBufferRow(previous_row))
3099 })
3100 {
3101 return None;
3102 }
3103 }
3104
3105 let display_row = multibuffer_point.to_display_point(snapshot).row();
3106 if !range.contains(&display_row) {
3107 return None;
3108 }
3109 if row_infos
3110 .get((display_row - range.start).0 as usize)
3111 .is_some_and(|row_info| row_info.expand_info.is_some())
3112 {
3113 return None;
3114 }
3115
3116 let button = editor.render_run_indicator(
3117 &self.style,
3118 Some(display_row) == active_task_indicator_row,
3119 display_row,
3120 breakpoints.remove(&display_row),
3121 cx,
3122 );
3123
3124 let button = prepaint_gutter_button(
3125 button,
3126 display_row,
3127 line_height,
3128 gutter_dimensions,
3129 scroll_position,
3130 gutter_hitbox,
3131 display_hunks,
3132 window,
3133 cx,
3134 );
3135 Some(button)
3136 })
3137 .collect_vec()
3138 })
3139 }
3140
3141 fn layout_expand_toggles(
3142 &self,
3143 gutter_hitbox: &Hitbox,
3144 gutter_dimensions: GutterDimensions,
3145 em_width: Pixels,
3146 line_height: Pixels,
3147 scroll_position: gpui::Point<ScrollOffset>,
3148 buffer_rows: &[RowInfo],
3149 window: &mut Window,
3150 cx: &mut App,
3151 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
3152 if self.editor.read(cx).disable_expand_excerpt_buttons {
3153 return vec![];
3154 }
3155
3156 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
3157
3158 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
3159
3160 let max_line_number_length = self
3161 .editor
3162 .read(cx)
3163 .buffer()
3164 .read(cx)
3165 .snapshot(cx)
3166 .widest_line_number()
3167 .ilog10()
3168 + 1;
3169
3170 let git_gutter_width = Self::gutter_strip_width(line_height)
3171 + gutter_dimensions
3172 .git_blame_entries_width
3173 .unwrap_or_default();
3174 let available_width = gutter_dimensions.left_padding - git_gutter_width;
3175
3176 buffer_rows
3177 .iter()
3178 .enumerate()
3179 .map(|(ix, row_info)| {
3180 let ExpandInfo {
3181 excerpt_id,
3182 direction,
3183 } = row_info.expand_info?;
3184
3185 let icon_name = match direction {
3186 ExpandExcerptDirection::Up => IconName::ExpandUp,
3187 ExpandExcerptDirection::Down => IconName::ExpandDown,
3188 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
3189 };
3190
3191 let editor = self.editor.clone();
3192 let is_wide = max_line_number_length
3193 >= EditorSettings::get_global(cx).gutter.min_line_number_digits as u32
3194 && row_info
3195 .buffer_row
3196 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
3197 || gutter_dimensions.right_padding == px(0.);
3198
3199 let width = if is_wide {
3200 available_width - px(2.)
3201 } else {
3202 available_width + em_width - px(2.)
3203 };
3204
3205 let toggle = IconButton::new(("expand", ix), icon_name)
3206 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
3207 .selected_icon_color(Color::Custom(cx.theme().colors().editor_foreground))
3208 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
3209 .width(width)
3210 .on_click(move |_, window, cx| {
3211 editor.update(cx, |editor, cx| {
3212 editor.expand_excerpt(excerpt_id, direction, window, cx);
3213 });
3214 })
3215 .tooltip(Tooltip::for_action_title(
3216 "Expand Excerpt",
3217 &crate::actions::ExpandExcerpts::default(),
3218 ))
3219 .into_any_element();
3220
3221 let position = point(
3222 git_gutter_width + px(1.),
3223 ix as f32 * line_height
3224 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height))
3225 + px(1.),
3226 );
3227 let origin = gutter_hitbox.origin + position;
3228
3229 Some((toggle, origin))
3230 })
3231 .collect()
3232 }
3233
3234 fn calculate_relative_line_numbers(
3235 &self,
3236 snapshot: &EditorSnapshot,
3237 rows: &Range<DisplayRow>,
3238 relative_to: Option<DisplayRow>,
3239 count_wrapped_lines: bool,
3240 ) -> HashMap<DisplayRow, DisplayRowDelta> {
3241 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
3242 let Some(relative_to) = relative_to else {
3243 return relative_rows;
3244 };
3245
3246 let start = rows.start.min(relative_to);
3247 let end = rows.end.max(relative_to);
3248
3249 let buffer_rows = snapshot
3250 .row_infos(start)
3251 .take(1 + end.minus(start) as usize)
3252 .collect::<Vec<_>>();
3253
3254 let head_idx = relative_to.minus(start);
3255 let mut delta = 1;
3256 let mut i = head_idx + 1;
3257 let should_count_line = |row_info: &RowInfo| {
3258 if count_wrapped_lines {
3259 row_info.buffer_row.is_some() || row_info.wrapped_buffer_row.is_some()
3260 } else {
3261 row_info.buffer_row.is_some()
3262 }
3263 };
3264 while i < buffer_rows.len() as u32 {
3265 if should_count_line(&buffer_rows[i as usize]) {
3266 if rows.contains(&DisplayRow(i + start.0)) {
3267 relative_rows.insert(DisplayRow(i + start.0), delta);
3268 }
3269 delta += 1;
3270 }
3271 i += 1;
3272 }
3273 delta = 1;
3274 i = head_idx.min(buffer_rows.len().saturating_sub(1) as u32);
3275 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() && !count_wrapped_lines {
3276 i -= 1;
3277 }
3278
3279 while i > 0 {
3280 i -= 1;
3281 if should_count_line(&buffer_rows[i as usize]) {
3282 if rows.contains(&DisplayRow(i + start.0)) {
3283 relative_rows.insert(DisplayRow(i + start.0), delta);
3284 }
3285 delta += 1;
3286 }
3287 }
3288
3289 relative_rows
3290 }
3291
3292 fn layout_line_numbers(
3293 &self,
3294 gutter_hitbox: Option<&Hitbox>,
3295 gutter_dimensions: GutterDimensions,
3296 line_height: Pixels,
3297 scroll_position: gpui::Point<ScrollOffset>,
3298 rows: Range<DisplayRow>,
3299 buffer_rows: &[RowInfo],
3300 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3301 newest_selection_head: Option<DisplayPoint>,
3302 snapshot: &EditorSnapshot,
3303 window: &mut Window,
3304 cx: &mut App,
3305 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
3306 let include_line_numbers = snapshot
3307 .show_line_numbers
3308 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
3309 if !include_line_numbers {
3310 return Arc::default();
3311 }
3312
3313 let (newest_selection_head, relative) = self.editor.update(cx, |editor, cx| {
3314 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
3315 let newest = editor
3316 .selections
3317 .newest::<Point>(&editor.display_snapshot(cx));
3318 SelectionLayout::new(
3319 newest,
3320 editor.selections.line_mode(),
3321 editor.is_vim_mode_enabled(cx),
3322 editor.cursor_shape,
3323 &snapshot.display_snapshot,
3324 true,
3325 true,
3326 None,
3327 )
3328 .head
3329 });
3330 let relative = editor.relative_line_numbers(cx);
3331 (newest_selection_head, relative)
3332 });
3333
3334 let relative_line_numbers_enabled = relative.enabled();
3335 let relative_to = relative_line_numbers_enabled.then(|| newest_selection_head.row());
3336
3337 let relative_rows =
3338 self.calculate_relative_line_numbers(snapshot, &rows, relative_to, relative.wrapped());
3339 let mut line_number = String::new();
3340 let segments = buffer_rows.iter().enumerate().flat_map(|(ix, row_info)| {
3341 let display_row = DisplayRow(rows.start.0 + ix as u32);
3342 line_number.clear();
3343 let non_relative_number = if relative.wrapped() {
3344 row_info.buffer_row.or(row_info.wrapped_buffer_row)? + 1
3345 } else if self.editor.read(cx).use_base_text_line_numbers {
3346 row_info.base_text_row?.0 + 1
3347 } else {
3348 row_info.buffer_row? + 1
3349 };
3350 let relative_number = relative_rows.get(&display_row);
3351 if !(relative_line_numbers_enabled && relative_number.is_some())
3352 && row_info
3353 .diff_status
3354 .is_some_and(|status| status.is_deleted())
3355 && !self.editor.read(cx).use_base_text_line_numbers
3356 {
3357 return None;
3358 }
3359
3360 let number = relative_number.unwrap_or(&non_relative_number);
3361 write!(&mut line_number, "{number}").unwrap();
3362
3363 let color = active_rows
3364 .get(&display_row)
3365 .map(|spec| {
3366 if spec.breakpoint {
3367 cx.theme().colors().debugger_accent
3368 } else {
3369 cx.theme().colors().editor_active_line_number
3370 }
3371 })
3372 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
3373 let shaped_line =
3374 self.shape_line_number(SharedString::from(&line_number), color, window);
3375 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
3376 let line_origin = gutter_hitbox.map(|hitbox| {
3377 hitbox.origin
3378 + point(
3379 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
3380 ix as f32 * line_height
3381 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height)),
3382 )
3383 });
3384
3385 #[cfg(not(test))]
3386 let hitbox = line_origin.map(|line_origin| {
3387 window.insert_hitbox(
3388 Bounds::new(line_origin, size(shaped_line.width, line_height)),
3389 HitboxBehavior::Normal,
3390 )
3391 });
3392 #[cfg(test)]
3393 let hitbox = {
3394 let _ = line_origin;
3395 None
3396 };
3397
3398 let segment = LineNumberSegment {
3399 shaped_line,
3400 hitbox,
3401 };
3402
3403 let buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
3404 let multi_buffer_row = MultiBufferRow(buffer_row);
3405
3406 Some((multi_buffer_row, segment))
3407 });
3408
3409 let mut line_numbers: HashMap<MultiBufferRow, LineNumberLayout> = HashMap::default();
3410 for (buffer_row, segment) in segments {
3411 line_numbers
3412 .entry(buffer_row)
3413 .or_insert_with(|| LineNumberLayout {
3414 segments: Default::default(),
3415 })
3416 .segments
3417 .push(segment);
3418 }
3419 Arc::new(line_numbers)
3420 }
3421
3422 fn layout_crease_toggles(
3423 &self,
3424 rows: Range<DisplayRow>,
3425 row_infos: &[RowInfo],
3426 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3427 snapshot: &EditorSnapshot,
3428 window: &mut Window,
3429 cx: &mut App,
3430 ) -> Vec<Option<AnyElement>> {
3431 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
3432 && snapshot.mode.is_full()
3433 && self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
3434 if include_fold_statuses {
3435 row_infos
3436 .iter()
3437 .enumerate()
3438 .map(|(ix, info)| {
3439 if info.expand_info.is_some() {
3440 return None;
3441 }
3442 let row = info.multibuffer_row?;
3443 let display_row = DisplayRow(rows.start.0 + ix as u32);
3444 let active = active_rows.contains_key(&display_row);
3445
3446 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
3447 })
3448 .collect()
3449 } else {
3450 Vec::new()
3451 }
3452 }
3453
3454 fn layout_crease_trailers(
3455 &self,
3456 buffer_rows: impl IntoIterator<Item = RowInfo>,
3457 snapshot: &EditorSnapshot,
3458 window: &mut Window,
3459 cx: &mut App,
3460 ) -> Vec<Option<AnyElement>> {
3461 buffer_rows
3462 .into_iter()
3463 .map(|row_info| {
3464 if row_info.expand_info.is_some() {
3465 return None;
3466 }
3467 if let Some(row) = row_info.multibuffer_row {
3468 snapshot.render_crease_trailer(row, window, cx)
3469 } else {
3470 None
3471 }
3472 })
3473 .collect()
3474 }
3475
3476 fn bg_segments_per_row(
3477 rows: Range<DisplayRow>,
3478 selections: &[(PlayerColor, Vec<SelectionLayout>)],
3479 highlight_ranges: &[(Range<DisplayPoint>, Hsla)],
3480 base_background: Hsla,
3481 ) -> Vec<Vec<(Range<DisplayPoint>, Hsla)>> {
3482 if rows.start >= rows.end {
3483 return Vec::new();
3484 }
3485 if !base_background.is_opaque() {
3486 // We don't actually know what color is behind this editor.
3487 return Vec::new();
3488 }
3489 let highlight_iter = highlight_ranges.iter().cloned();
3490 let selection_iter = selections.iter().flat_map(|(player_color, layouts)| {
3491 let color = player_color.selection;
3492 layouts.iter().filter_map(move |selection_layout| {
3493 if selection_layout.range.start != selection_layout.range.end {
3494 Some((selection_layout.range.clone(), color))
3495 } else {
3496 None
3497 }
3498 })
3499 });
3500 let mut per_row_map = vec![Vec::new(); rows.len()];
3501 for (range, color) in highlight_iter.chain(selection_iter) {
3502 let covered_rows = if range.end.column() == 0 {
3503 cmp::max(range.start.row(), rows.start)..cmp::min(range.end.row(), rows.end)
3504 } else {
3505 cmp::max(range.start.row(), rows.start)
3506 ..cmp::min(range.end.row().next_row(), rows.end)
3507 };
3508 for row in covered_rows.iter_rows() {
3509 let seg_start = if row == range.start.row() {
3510 range.start
3511 } else {
3512 DisplayPoint::new(row, 0)
3513 };
3514 let seg_end = if row == range.end.row() && range.end.column() != 0 {
3515 range.end
3516 } else {
3517 DisplayPoint::new(row, u32::MAX)
3518 };
3519 let ix = row.minus(rows.start) as usize;
3520 debug_assert!(row >= rows.start && row < rows.end);
3521 debug_assert!(ix < per_row_map.len());
3522 per_row_map[ix].push((seg_start..seg_end, color));
3523 }
3524 }
3525 for row_segments in per_row_map.iter_mut() {
3526 if row_segments.is_empty() {
3527 continue;
3528 }
3529 let segments = mem::take(row_segments);
3530 let merged = Self::merge_overlapping_ranges(segments, base_background);
3531 *row_segments = merged;
3532 }
3533 per_row_map
3534 }
3535
3536 /// Merge overlapping ranges by splitting at all range boundaries and blending colors where
3537 /// multiple ranges overlap. The result contains non-overlapping ranges ordered from left to right.
3538 ///
3539 /// Expects `start.row() == end.row()` for each range.
3540 fn merge_overlapping_ranges(
3541 ranges: Vec<(Range<DisplayPoint>, Hsla)>,
3542 base_background: Hsla,
3543 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
3544 struct Boundary {
3545 pos: DisplayPoint,
3546 is_start: bool,
3547 index: usize,
3548 color: Hsla,
3549 }
3550
3551 let mut boundaries: SmallVec<[Boundary; 16]> = SmallVec::with_capacity(ranges.len() * 2);
3552 for (index, (range, color)) in ranges.iter().enumerate() {
3553 debug_assert!(
3554 range.start.row() == range.end.row(),
3555 "expects single-row ranges"
3556 );
3557 if range.start < range.end {
3558 boundaries.push(Boundary {
3559 pos: range.start,
3560 is_start: true,
3561 index,
3562 color: *color,
3563 });
3564 boundaries.push(Boundary {
3565 pos: range.end,
3566 is_start: false,
3567 index,
3568 color: *color,
3569 });
3570 }
3571 }
3572
3573 if boundaries.is_empty() {
3574 return Vec::new();
3575 }
3576
3577 boundaries
3578 .sort_unstable_by(|a, b| a.pos.cmp(&b.pos).then_with(|| a.is_start.cmp(&b.is_start)));
3579
3580 let mut processed_ranges: Vec<(Range<DisplayPoint>, Hsla)> = Vec::new();
3581 let mut active_ranges: SmallVec<[(usize, Hsla); 8]> = SmallVec::new();
3582
3583 let mut i = 0;
3584 let mut start_pos = boundaries[0].pos;
3585
3586 let boundaries_len = boundaries.len();
3587 while i < boundaries_len {
3588 let current_boundary_pos = boundaries[i].pos;
3589 if start_pos < current_boundary_pos {
3590 if !active_ranges.is_empty() {
3591 let mut color = base_background;
3592 for &(_, c) in &active_ranges {
3593 color = Hsla::blend(color, c);
3594 }
3595 if let Some((last_range, last_color)) = processed_ranges.last_mut() {
3596 if *last_color == color && last_range.end == start_pos {
3597 last_range.end = current_boundary_pos;
3598 } else {
3599 processed_ranges.push((start_pos..current_boundary_pos, color));
3600 }
3601 } else {
3602 processed_ranges.push((start_pos..current_boundary_pos, color));
3603 }
3604 }
3605 }
3606 while i < boundaries_len && boundaries[i].pos == current_boundary_pos {
3607 let active_range = &boundaries[i];
3608 if active_range.is_start {
3609 let idx = active_range.index;
3610 let pos = active_ranges
3611 .binary_search_by_key(&idx, |(i, _)| *i)
3612 .unwrap_or_else(|p| p);
3613 active_ranges.insert(pos, (idx, active_range.color));
3614 } else {
3615 let idx = active_range.index;
3616 if let Ok(pos) = active_ranges.binary_search_by_key(&idx, |(i, _)| *i) {
3617 active_ranges.remove(pos);
3618 }
3619 }
3620 i += 1;
3621 }
3622 start_pos = current_boundary_pos;
3623 }
3624
3625 processed_ranges
3626 }
3627
3628 fn layout_lines(
3629 rows: Range<DisplayRow>,
3630 snapshot: &EditorSnapshot,
3631 style: &EditorStyle,
3632 editor_width: Pixels,
3633 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3634 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
3635 window: &mut Window,
3636 cx: &mut App,
3637 ) -> Vec<LineWithInvisibles> {
3638 if rows.start >= rows.end {
3639 return Vec::new();
3640 }
3641
3642 // Show the placeholder when the editor is empty
3643 if snapshot.is_empty() {
3644 let font_size = style.text.font_size.to_pixels(window.rem_size());
3645 let placeholder_color = cx.theme().colors().text_placeholder;
3646 let placeholder_text = snapshot.placeholder_text();
3647
3648 let placeholder_lines = placeholder_text
3649 .as_ref()
3650 .map_or(Vec::new(), |text| text.split('\n').collect::<Vec<_>>());
3651
3652 let placeholder_line_count = placeholder_lines.len();
3653
3654 placeholder_lines
3655 .into_iter()
3656 .skip(rows.start.0 as usize)
3657 .chain(iter::repeat(""))
3658 .take(cmp::max(rows.len(), placeholder_line_count))
3659 .map(move |line| {
3660 let run = TextRun {
3661 len: line.len(),
3662 font: style.text.font(),
3663 color: placeholder_color,
3664 ..Default::default()
3665 };
3666 let line = window.text_system().shape_line(
3667 line.to_string().into(),
3668 font_size,
3669 &[run],
3670 None,
3671 );
3672 LineWithInvisibles {
3673 width: line.width,
3674 len: line.len,
3675 fragments: smallvec![LineFragment::Text(line)],
3676 invisibles: Vec::new(),
3677 font_size,
3678 }
3679 })
3680 .collect()
3681 } else {
3682 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
3683 LineWithInvisibles::from_chunks(
3684 chunks,
3685 style,
3686 MAX_LINE_LEN,
3687 rows.len(),
3688 &snapshot.mode,
3689 editor_width,
3690 is_row_soft_wrapped,
3691 bg_segments_per_row,
3692 window,
3693 cx,
3694 )
3695 }
3696 }
3697
3698 fn prepaint_lines(
3699 &self,
3700 start_row: DisplayRow,
3701 line_layouts: &mut [LineWithInvisibles],
3702 line_height: Pixels,
3703 scroll_position: gpui::Point<ScrollOffset>,
3704 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
3705 content_origin: gpui::Point<Pixels>,
3706 window: &mut Window,
3707 cx: &mut App,
3708 ) -> SmallVec<[AnyElement; 1]> {
3709 let mut line_elements = SmallVec::new();
3710 for (ix, line) in line_layouts.iter_mut().enumerate() {
3711 let row = start_row + DisplayRow(ix as u32);
3712 line.prepaint(
3713 line_height,
3714 scroll_position,
3715 scroll_pixel_position,
3716 row,
3717 content_origin,
3718 &mut line_elements,
3719 window,
3720 cx,
3721 );
3722 }
3723 line_elements
3724 }
3725
3726 fn render_block(
3727 &self,
3728 block: &Block,
3729 available_width: AvailableSpace,
3730 block_id: BlockId,
3731 block_row_start: DisplayRow,
3732 snapshot: &EditorSnapshot,
3733 text_x: Pixels,
3734 rows: &Range<DisplayRow>,
3735 line_layouts: &[LineWithInvisibles],
3736 editor_margins: &EditorMargins,
3737 line_height: Pixels,
3738 em_width: Pixels,
3739 text_hitbox: &Hitbox,
3740 editor_width: Pixels,
3741 scroll_width: &mut Pixels,
3742 resized_blocks: &mut HashMap<CustomBlockId, u32>,
3743 row_block_types: &mut HashMap<DisplayRow, bool>,
3744 selections: &[Selection<Point>],
3745 selected_buffer_ids: &Vec<BufferId>,
3746 latest_selection_anchors: &HashMap<BufferId, Anchor>,
3747 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3748 sticky_header_excerpt_id: Option<ExcerptId>,
3749 block_resize_offset: &mut i32,
3750 window: &mut Window,
3751 cx: &mut App,
3752 ) -> Option<(AnyElement, Size<Pixels>, DisplayRow, Pixels)> {
3753 let mut x_position = None;
3754 let mut element = match block {
3755 Block::Custom(custom) => {
3756 let block_start = custom.start().to_point(&snapshot.buffer_snapshot());
3757 let block_end = custom.end().to_point(&snapshot.buffer_snapshot());
3758 if block.place_near() && snapshot.is_line_folded(MultiBufferRow(block_start.row)) {
3759 return None;
3760 }
3761 let align_to = block_start.to_display_point(snapshot);
3762 let x_and_width = |layout: &LineWithInvisibles| {
3763 Some((
3764 text_x + layout.x_for_index(align_to.column() as usize),
3765 text_x + layout.width,
3766 ))
3767 };
3768 let line_ix = align_to.row().0.checked_sub(rows.start.0);
3769 x_position =
3770 if let Some(layout) = line_ix.and_then(|ix| line_layouts.get(ix as usize)) {
3771 x_and_width(layout)
3772 } else {
3773 x_and_width(&layout_line(
3774 align_to.row(),
3775 snapshot,
3776 &self.style,
3777 editor_width,
3778 is_row_soft_wrapped,
3779 window,
3780 cx,
3781 ))
3782 };
3783
3784 let anchor_x = x_position.unwrap().0;
3785
3786 let selected = selections
3787 .binary_search_by(|selection| {
3788 if selection.end <= block_start {
3789 Ordering::Less
3790 } else if selection.start >= block_end {
3791 Ordering::Greater
3792 } else {
3793 Ordering::Equal
3794 }
3795 })
3796 .is_ok();
3797
3798 div()
3799 .size_full()
3800 .child(custom.render(&mut BlockContext {
3801 window,
3802 app: cx,
3803 anchor_x,
3804 margins: editor_margins,
3805 line_height,
3806 em_width,
3807 block_id,
3808 selected,
3809 max_width: text_hitbox.size.width.max(*scroll_width),
3810 editor_style: &self.style,
3811 }))
3812 .into_any()
3813 }
3814
3815 Block::FoldedBuffer {
3816 first_excerpt,
3817 height,
3818 ..
3819 } => {
3820 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
3821 let result = v_flex().id(block_id).w_full().pr(editor_margins.right);
3822
3823 let jump_data = header_jump_data(
3824 snapshot,
3825 block_row_start,
3826 *height,
3827 first_excerpt,
3828 latest_selection_anchors,
3829 );
3830 result
3831 .child(self.render_buffer_header(
3832 first_excerpt,
3833 true,
3834 selected,
3835 false,
3836 jump_data,
3837 window,
3838 cx,
3839 ))
3840 .into_any_element()
3841 }
3842
3843 Block::ExcerptBoundary { .. } => {
3844 let color = cx.theme().colors().clone();
3845 let mut result = v_flex().id(block_id).w_full();
3846
3847 result = result.child(
3848 h_flex().relative().child(
3849 div()
3850 .top(line_height / 2.)
3851 .absolute()
3852 .w_full()
3853 .h_px()
3854 .bg(color.border_variant),
3855 ),
3856 );
3857
3858 result.into_any()
3859 }
3860
3861 Block::BufferHeader { excerpt, height } => {
3862 let mut result = v_flex().id(block_id).w_full();
3863
3864 let jump_data = header_jump_data(
3865 snapshot,
3866 block_row_start,
3867 *height,
3868 excerpt,
3869 latest_selection_anchors,
3870 );
3871
3872 if sticky_header_excerpt_id != Some(excerpt.id) {
3873 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3874
3875 result = result.child(div().pr(editor_margins.right).child(
3876 self.render_buffer_header(
3877 excerpt, false, selected, false, jump_data, window, cx,
3878 ),
3879 ));
3880 } else {
3881 result =
3882 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
3883 }
3884
3885 result.into_any()
3886 }
3887 };
3888
3889 // Discover the element's content height, then round up to the nearest multiple of line height.
3890 let preliminary_size = element.layout_as_root(
3891 size(available_width, AvailableSpace::MinContent),
3892 window,
3893 cx,
3894 );
3895 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
3896 let final_size = if preliminary_size.height == quantized_height {
3897 preliminary_size
3898 } else {
3899 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
3900 };
3901 let mut element_height_in_lines = ((final_size.height / line_height).ceil() as u32).max(1);
3902
3903 let effective_row_start = block_row_start.0 as i32 + *block_resize_offset;
3904 debug_assert!(effective_row_start >= 0);
3905 let mut row = DisplayRow(effective_row_start.max(0) as u32);
3906
3907 let mut x_offset = px(0.);
3908 let mut is_block = true;
3909
3910 if let BlockId::Custom(custom_block_id) = block_id
3911 && block.has_height()
3912 {
3913 if block.place_near()
3914 && let Some((x_target, line_width)) = x_position
3915 {
3916 let margin = em_width * 2;
3917 if line_width + final_size.width + margin
3918 < editor_width + editor_margins.gutter.full_width()
3919 && !row_block_types.contains_key(&(row - 1))
3920 && element_height_in_lines == 1
3921 {
3922 x_offset = line_width + margin;
3923 row = row - 1;
3924 is_block = false;
3925 element_height_in_lines = 0;
3926 row_block_types.insert(row, is_block);
3927 } else {
3928 let max_offset =
3929 editor_width + editor_margins.gutter.full_width() - final_size.width;
3930 let min_offset = (x_target + em_width - final_size.width)
3931 .max(editor_margins.gutter.full_width());
3932 x_offset = x_target.min(max_offset).max(min_offset);
3933 }
3934 };
3935 if element_height_in_lines != block.height() {
3936 *block_resize_offset += element_height_in_lines as i32 - block.height() as i32;
3937 resized_blocks.insert(custom_block_id, element_height_in_lines);
3938 }
3939 }
3940 for i in 0..element_height_in_lines {
3941 row_block_types.insert(row + i, is_block);
3942 }
3943
3944 Some((element, final_size, row, x_offset))
3945 }
3946
3947 fn render_buffer_header(
3948 &self,
3949 for_excerpt: &ExcerptInfo,
3950 is_folded: bool,
3951 is_selected: bool,
3952 is_sticky: bool,
3953 jump_data: JumpData,
3954 window: &mut Window,
3955 cx: &mut App,
3956 ) -> impl IntoElement {
3957 let editor = self.editor.read(cx);
3958 let multi_buffer = editor.buffer.read(cx);
3959 let is_read_only = self.editor.read(cx).read_only(cx);
3960 let weak_editor = self.editor.downgrade();
3961
3962 let breadcrumbs = if is_selected {
3963 editor.breadcrumbs_inner(cx.theme(), cx)
3964 } else {
3965 None
3966 };
3967
3968 let file_status = multi_buffer
3969 .all_diff_hunks_expanded()
3970 .then(|| editor.status_for_buffer_id(for_excerpt.buffer_id, cx))
3971 .flatten();
3972 let indicator = multi_buffer
3973 .buffer(for_excerpt.buffer_id)
3974 .and_then(|buffer| {
3975 let buffer = buffer.read(cx);
3976 let indicator_color = match (buffer.has_conflict(), buffer.is_dirty()) {
3977 (true, _) => Some(Color::Warning),
3978 (_, true) => Some(Color::Accent),
3979 (false, false) => None,
3980 };
3981 indicator_color.map(|indicator_color| Indicator::dot().color(indicator_color))
3982 });
3983
3984 let include_root = editor
3985 .project
3986 .as_ref()
3987 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
3988 .unwrap_or_default();
3989 let file = for_excerpt.buffer.file();
3990 let can_open_excerpts = Editor::can_open_excerpts_in_file(file);
3991 let path_style = file.map(|file| file.path_style(cx));
3992 let relative_path = for_excerpt.buffer.resolve_file_path(include_root, cx);
3993 let (parent_path, filename) = if let Some(path) = &relative_path {
3994 if let Some(path_style) = path_style {
3995 let (dir, file_name) = path_style.split(path);
3996 (dir.map(|dir| dir.to_owned()), Some(file_name.to_owned()))
3997 } else {
3998 (None, Some(path.clone()))
3999 }
4000 } else {
4001 (None, None)
4002 };
4003 let focus_handle = editor.focus_handle(cx);
4004 let colors = cx.theme().colors();
4005
4006 let header = div()
4007 .p_1()
4008 .w_full()
4009 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
4010 .child(
4011 h_flex()
4012 .size_full()
4013 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
4014 .pl_1()
4015 .pr_2()
4016 .rounded_sm()
4017 .gap_1p5()
4018 .when(is_sticky, |el| el.shadow_md())
4019 .border_1()
4020 .map(|border| {
4021 let border_color = if is_selected
4022 && is_folded
4023 && focus_handle.contains_focused(window, cx)
4024 {
4025 colors.border_focused
4026 } else {
4027 colors.border
4028 };
4029 border.border_color(border_color)
4030 })
4031 .bg(colors.editor_subheader_background)
4032 .hover(|style| style.bg(colors.element_hover))
4033 .map(|header| {
4034 let editor = self.editor.clone();
4035 let buffer_id = for_excerpt.buffer_id;
4036 let toggle_chevron_icon =
4037 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
4038 let button_size = rems_from_px(28.);
4039
4040 header.child(
4041 div()
4042 .hover(|style| style.bg(colors.element_selected))
4043 .rounded_xs()
4044 .child(
4045 ButtonLike::new("toggle-buffer-fold")
4046 .style(ButtonStyle::Transparent)
4047 .height(button_size.into())
4048 .width(button_size)
4049 .children(toggle_chevron_icon)
4050 .tooltip({
4051 let focus_handle = focus_handle.clone();
4052 let is_folded_for_tooltip = is_folded;
4053 move |_window, cx| {
4054 Tooltip::with_meta_in(
4055 if is_folded_for_tooltip {
4056 "Unfold Excerpt"
4057 } else {
4058 "Fold Excerpt"
4059 },
4060 Some(&ToggleFold),
4061 format!(
4062 "{} to toggle all",
4063 text_for_keystroke(
4064 &Modifiers::alt(),
4065 "click",
4066 cx
4067 )
4068 ),
4069 &focus_handle,
4070 cx,
4071 )
4072 }
4073 })
4074 .on_click(move |event, window, cx| {
4075 if event.modifiers().alt {
4076 // Alt+click toggles all buffers
4077 editor.update(cx, |editor, cx| {
4078 editor.toggle_fold_all(
4079 &ToggleFoldAll,
4080 window,
4081 cx,
4082 );
4083 });
4084 } else {
4085 // Regular click toggles single buffer
4086 if is_folded {
4087 editor.update(cx, |editor, cx| {
4088 editor.unfold_buffer(buffer_id, cx);
4089 });
4090 } else {
4091 editor.update(cx, |editor, cx| {
4092 editor.fold_buffer(buffer_id, cx);
4093 });
4094 }
4095 }
4096 }),
4097 ),
4098 )
4099 })
4100 .children(
4101 editor
4102 .addons
4103 .values()
4104 .filter_map(|addon| {
4105 addon.render_buffer_header_controls(for_excerpt, window, cx)
4106 })
4107 .take(1),
4108 )
4109 .when(!is_read_only, |this| {
4110 this.child(
4111 h_flex()
4112 .size_3()
4113 .justify_center()
4114 .flex_shrink_0()
4115 .children(indicator),
4116 )
4117 })
4118 .child(
4119 h_flex()
4120 .cursor_pointer()
4121 .id("path_header_block")
4122 .min_w_0()
4123 .size_full()
4124 .justify_between()
4125 .overflow_hidden()
4126 .child(h_flex().min_w_0().flex_1().gap_0p5().map(|path_header| {
4127 let filename = filename
4128 .map(SharedString::from)
4129 .unwrap_or_else(|| "untitled".into());
4130
4131 path_header
4132 .when(ItemSettings::get_global(cx).file_icons, |el| {
4133 let path = path::Path::new(filename.as_str());
4134 let icon =
4135 FileIcons::get_icon(path, cx).unwrap_or_default();
4136
4137 el.child(Icon::from_path(icon).color(Color::Muted))
4138 })
4139 .child(
4140 ButtonLike::new("filename-button")
4141 .child(
4142 Label::new(filename)
4143 .single_line()
4144 .color(file_status_label_color(file_status))
4145 .when(
4146 file_status.is_some_and(|s| s.is_deleted()),
4147 |label| label.strikethrough(),
4148 ),
4149 )
4150 .on_click(window.listener_for(&self.editor, {
4151 let jump_data = jump_data.clone();
4152 move |editor, e: &ClickEvent, window, cx| {
4153 editor.open_excerpts_common(
4154 Some(jump_data.clone()),
4155 e.modifiers().secondary(),
4156 window,
4157 cx,
4158 );
4159 }
4160 })),
4161 )
4162 .when_some(parent_path, |then, path| {
4163 then.child(Label::new(path).truncate().color(
4164 if file_status.is_some_and(FileStatus::is_deleted) {
4165 Color::Custom(colors.text_disabled)
4166 } else {
4167 Color::Custom(colors.text_muted)
4168 },
4169 ))
4170 })
4171 .when_some(breadcrumbs, |then, breadcrumbs| {
4172 then.child(self.render_breadcrumb_text(
4173 breadcrumbs,
4174 None, // TODO gotta figure this out somehow
4175 weak_editor,
4176 window,
4177 cx,
4178 ))
4179 })
4180 }))
4181 .when(
4182 can_open_excerpts && is_selected && relative_path.is_some(),
4183 |el| {
4184 el.child(
4185 Button::new("open-file-button", "Open File")
4186 .style(ButtonStyle::OutlinedGhost)
4187 .key_binding(KeyBinding::for_action_in(
4188 &OpenExcerpts,
4189 &focus_handle,
4190 cx,
4191 ))
4192 .on_click(window.listener_for(&self.editor, {
4193 let jump_data = jump_data.clone();
4194 move |editor, e: &ClickEvent, window, cx| {
4195 editor.open_excerpts_common(
4196 Some(jump_data.clone()),
4197 e.modifiers().secondary(),
4198 window,
4199 cx,
4200 );
4201 }
4202 })),
4203 )
4204 },
4205 )
4206 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
4207 .on_click(window.listener_for(&self.editor, {
4208 let buffer_id = for_excerpt.buffer_id;
4209 move |editor, e: &ClickEvent, window, cx| {
4210 if e.modifiers().alt {
4211 editor.open_excerpts_common(
4212 Some(jump_data.clone()),
4213 e.modifiers().secondary(),
4214 window,
4215 cx,
4216 );
4217 return;
4218 }
4219
4220 if is_folded {
4221 editor.unfold_buffer(buffer_id, cx);
4222 } else {
4223 editor.fold_buffer(buffer_id, cx);
4224 }
4225 }
4226 })),
4227 ),
4228 );
4229
4230 let file = for_excerpt.buffer.file().cloned();
4231 let editor = self.editor.clone();
4232
4233 right_click_menu("buffer-header-context-menu")
4234 .trigger(move |_, _, _| header)
4235 .menu(move |window, cx| {
4236 let menu_context = focus_handle.clone();
4237 let editor = editor.clone();
4238 let file = file.clone();
4239 ContextMenu::build(window, cx, move |mut menu, window, cx| {
4240 if let Some(file) = file
4241 && let Some(project) = editor.read(cx).project()
4242 && let Some(worktree) =
4243 project.read(cx).worktree_for_id(file.worktree_id(cx), cx)
4244 {
4245 let path_style = file.path_style(cx);
4246 let worktree = worktree.read(cx);
4247 let relative_path = file.path();
4248 let entry_for_path = worktree.entry_for_path(relative_path);
4249 let abs_path = entry_for_path.map(|e| {
4250 e.canonical_path.as_deref().map_or_else(
4251 || worktree.absolutize(relative_path),
4252 Path::to_path_buf,
4253 )
4254 });
4255 let has_relative_path = worktree.root_entry().is_some_and(Entry::is_dir);
4256
4257 let parent_abs_path = abs_path
4258 .as_ref()
4259 .and_then(|abs_path| Some(abs_path.parent()?.to_path_buf()));
4260 let relative_path = has_relative_path
4261 .then_some(relative_path)
4262 .map(ToOwned::to_owned);
4263
4264 let visible_in_project_panel =
4265 relative_path.is_some() && worktree.is_visible();
4266 let reveal_in_project_panel = entry_for_path
4267 .filter(|_| visible_in_project_panel)
4268 .map(|entry| entry.id);
4269 menu = menu
4270 .when_some(abs_path, |menu, abs_path| {
4271 menu.entry(
4272 "Copy Path",
4273 Some(Box::new(zed_actions::workspace::CopyPath)),
4274 window.handler_for(&editor, move |_, _, cx| {
4275 cx.write_to_clipboard(ClipboardItem::new_string(
4276 abs_path.to_string_lossy().into_owned(),
4277 ));
4278 }),
4279 )
4280 })
4281 .when_some(relative_path, |menu, relative_path| {
4282 menu.entry(
4283 "Copy Relative Path",
4284 Some(Box::new(zed_actions::workspace::CopyRelativePath)),
4285 window.handler_for(&editor, move |_, _, cx| {
4286 cx.write_to_clipboard(ClipboardItem::new_string(
4287 relative_path.display(path_style).to_string(),
4288 ));
4289 }),
4290 )
4291 })
4292 .when(
4293 reveal_in_project_panel.is_some() || parent_abs_path.is_some(),
4294 |menu| menu.separator(),
4295 )
4296 .when_some(reveal_in_project_panel, |menu, entry_id| {
4297 menu.entry(
4298 "Reveal In Project Panel",
4299 Some(Box::new(RevealInProjectPanel::default())),
4300 window.handler_for(&editor, move |editor, _, cx| {
4301 if let Some(project) = &mut editor.project {
4302 project.update(cx, |_, cx| {
4303 cx.emit(project::Event::RevealInProjectPanel(
4304 entry_id,
4305 ))
4306 });
4307 }
4308 }),
4309 )
4310 })
4311 .when_some(parent_abs_path, |menu, parent_abs_path| {
4312 menu.entry(
4313 "Open in Terminal",
4314 Some(Box::new(OpenInTerminal)),
4315 window.handler_for(&editor, move |_, window, cx| {
4316 window.dispatch_action(
4317 OpenTerminal {
4318 working_directory: parent_abs_path.clone(),
4319 }
4320 .boxed_clone(),
4321 cx,
4322 );
4323 }),
4324 )
4325 });
4326 }
4327
4328 menu.context(menu_context)
4329 })
4330 })
4331 }
4332
4333 // TODO This has too much code in common with Breadcrumb::render. We should find a way to DRY it.
4334 fn render_breadcrumb_text(
4335 &self,
4336 mut segments: Vec<BreadcrumbText>,
4337 prefix: Option<gpui::AnyElement>,
4338 editor: WeakEntity<Editor>,
4339 window: &mut Window,
4340 cx: &App,
4341 ) -> impl IntoElement {
4342 const MAX_SEGMENTS: usize = 12;
4343
4344 let element = h_flex()
4345 .id("breadcrumb-container")
4346 .flex_grow()
4347 .overflow_x_scroll()
4348 .text_ui(cx);
4349
4350 let prefix_end_ix = cmp::min(segments.len(), MAX_SEGMENTS / 2);
4351 let suffix_start_ix = cmp::max(
4352 prefix_end_ix,
4353 segments.len().saturating_sub(MAX_SEGMENTS / 2),
4354 );
4355
4356 if suffix_start_ix > prefix_end_ix {
4357 segments.splice(
4358 prefix_end_ix..suffix_start_ix,
4359 Some(BreadcrumbText {
4360 text: "β―".into(),
4361 highlights: None,
4362 font: None,
4363 }),
4364 );
4365 }
4366
4367 let highlighted_segments = segments.into_iter().enumerate().map(|(_index, segment)| {
4368 let mut text_style = window.text_style();
4369 if let Some(ref font) = segment.font {
4370 text_style.font_family = font.family.clone();
4371 text_style.font_features = font.features.clone();
4372 text_style.font_style = font.style;
4373 text_style.font_weight = font.weight;
4374 }
4375 text_style.color = Color::Muted.color(cx);
4376
4377 // TODO this shouldn't apply here, but will in the formal breadcrumb (e.g. singleton buffer). Need to resolve the difference.
4378 // if index == 0
4379 // && !TabBarSettings::get_global(cx).show
4380 // && active_item.is_dirty(cx)
4381 // && let Some(styled_element) = apply_dirty_filename_style(&segment, &text_style, cx)
4382 // {
4383 // return styled_element;
4384 // }
4385
4386 StyledText::new(segment.text.replace('\n', "β"))
4387 .with_default_highlights(&text_style, segment.highlights.unwrap_or_default())
4388 .into_any()
4389 });
4390 let breadcrumbs = Itertools::intersperse_with(highlighted_segments, || {
4391 Label::new("βΊ").color(Color::Placeholder).into_any_element()
4392 });
4393
4394 let breadcrumbs_stack = h_flex().gap_1().children(breadcrumbs);
4395
4396 let breadcrumbs = if let Some(prefix) = prefix {
4397 h_flex().gap_1p5().child(prefix).child(breadcrumbs_stack)
4398 } else {
4399 breadcrumbs_stack
4400 };
4401 element.child(
4402 ButtonLike::new("toggle outline view")
4403 .child(breadcrumbs)
4404 .style(ButtonStyle::Transparent)
4405 .on_click({
4406 let editor = editor.clone();
4407 move |_, window, cx| {
4408 if let Some((editor, callback)) = editor
4409 .upgrade()
4410 .zip(zed_actions::outline::TOGGLE_OUTLINE.get())
4411 {
4412 callback(editor.to_any_view(), window, cx);
4413 }
4414 }
4415 })
4416 .tooltip(move |_window, cx| {
4417 if let Some(editor) = editor.upgrade() {
4418 let focus_handle = editor.read(cx).focus_handle(cx);
4419 Tooltip::for_action_in(
4420 "Show Symbol Outline",
4421 &zed_actions::outline::ToggleOutline,
4422 &focus_handle,
4423 cx,
4424 )
4425 } else {
4426 Tooltip::for_action(
4427 "Show Symbol Outline",
4428 &zed_actions::outline::ToggleOutline,
4429 cx,
4430 )
4431 }
4432 }),
4433 )
4434 }
4435
4436 fn render_blocks(
4437 &self,
4438 rows: Range<DisplayRow>,
4439 snapshot: &EditorSnapshot,
4440 hitbox: &Hitbox,
4441 text_hitbox: &Hitbox,
4442 editor_width: Pixels,
4443 scroll_width: &mut Pixels,
4444 editor_margins: &EditorMargins,
4445 em_width: Pixels,
4446 text_x: Pixels,
4447 line_height: Pixels,
4448 line_layouts: &mut [LineWithInvisibles],
4449 selections: &[Selection<Point>],
4450 selected_buffer_ids: &Vec<BufferId>,
4451 latest_selection_anchors: &HashMap<BufferId, Anchor>,
4452 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4453 sticky_header_excerpt_id: Option<ExcerptId>,
4454 window: &mut Window,
4455 cx: &mut App,
4456 ) -> RenderBlocksOutput {
4457 let (fixed_blocks, non_fixed_blocks) = snapshot
4458 .blocks_in_range(rows.clone())
4459 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
4460
4461 let mut focused_block = self
4462 .editor
4463 .update(cx, |editor, _| editor.take_focused_block());
4464 let mut fixed_block_max_width = Pixels::ZERO;
4465 let mut blocks = Vec::new();
4466 let mut resized_blocks = HashMap::default();
4467 let mut row_block_types = HashMap::default();
4468 let mut block_resize_offset: i32 = 0;
4469
4470 for (row, block) in fixed_blocks {
4471 let block_id = block.id();
4472
4473 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4474 focused_block = None;
4475 }
4476
4477 if let Some((element, element_size, row, x_offset)) = self.render_block(
4478 block,
4479 AvailableSpace::MinContent,
4480 block_id,
4481 row,
4482 snapshot,
4483 text_x,
4484 &rows,
4485 line_layouts,
4486 editor_margins,
4487 line_height,
4488 em_width,
4489 text_hitbox,
4490 editor_width,
4491 scroll_width,
4492 &mut resized_blocks,
4493 &mut row_block_types,
4494 selections,
4495 selected_buffer_ids,
4496 latest_selection_anchors,
4497 is_row_soft_wrapped,
4498 sticky_header_excerpt_id,
4499 &mut block_resize_offset,
4500 window,
4501 cx,
4502 ) {
4503 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
4504 blocks.push(BlockLayout {
4505 id: block_id,
4506 x_offset,
4507 row: Some(row),
4508 element,
4509 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
4510 style: BlockStyle::Fixed,
4511 overlaps_gutter: true,
4512 is_buffer_header: block.is_buffer_header(),
4513 });
4514 }
4515 }
4516
4517 for (row, block) in non_fixed_blocks {
4518 let style = block.style();
4519 let width = match (style, block.place_near()) {
4520 (_, true) => AvailableSpace::MinContent,
4521 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
4522 (BlockStyle::Flex, _) => hitbox
4523 .size
4524 .width
4525 .max(fixed_block_max_width)
4526 .max(editor_margins.gutter.width + *scroll_width)
4527 .into(),
4528 (BlockStyle::Fixed, _) => unreachable!(),
4529 };
4530 let block_id = block.id();
4531
4532 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4533 focused_block = None;
4534 }
4535
4536 if let Some((element, element_size, row, x_offset)) = self.render_block(
4537 block,
4538 width,
4539 block_id,
4540 row,
4541 snapshot,
4542 text_x,
4543 &rows,
4544 line_layouts,
4545 editor_margins,
4546 line_height,
4547 em_width,
4548 text_hitbox,
4549 editor_width,
4550 scroll_width,
4551 &mut resized_blocks,
4552 &mut row_block_types,
4553 selections,
4554 selected_buffer_ids,
4555 latest_selection_anchors,
4556 is_row_soft_wrapped,
4557 sticky_header_excerpt_id,
4558 &mut block_resize_offset,
4559 window,
4560 cx,
4561 ) {
4562 blocks.push(BlockLayout {
4563 id: block_id,
4564 x_offset,
4565 row: Some(row),
4566 element,
4567 available_space: size(width, element_size.height.into()),
4568 style,
4569 overlaps_gutter: !block.place_near(),
4570 is_buffer_header: block.is_buffer_header(),
4571 });
4572 }
4573 }
4574
4575 if let Some(focused_block) = focused_block
4576 && let Some(focus_handle) = focused_block.focus_handle.upgrade()
4577 && focus_handle.is_focused(window)
4578 && let Some(block) = snapshot.block_for_id(focused_block.id)
4579 {
4580 let style = block.style();
4581 let width = match style {
4582 BlockStyle::Fixed => AvailableSpace::MinContent,
4583 BlockStyle::Flex => AvailableSpace::Definite(
4584 hitbox
4585 .size
4586 .width
4587 .max(fixed_block_max_width)
4588 .max(editor_margins.gutter.width + *scroll_width),
4589 ),
4590 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
4591 };
4592
4593 if let Some((element, element_size, _, x_offset)) = self.render_block(
4594 &block,
4595 width,
4596 focused_block.id,
4597 rows.end,
4598 snapshot,
4599 text_x,
4600 &rows,
4601 line_layouts,
4602 editor_margins,
4603 line_height,
4604 em_width,
4605 text_hitbox,
4606 editor_width,
4607 scroll_width,
4608 &mut resized_blocks,
4609 &mut row_block_types,
4610 selections,
4611 selected_buffer_ids,
4612 latest_selection_anchors,
4613 is_row_soft_wrapped,
4614 sticky_header_excerpt_id,
4615 &mut block_resize_offset,
4616 window,
4617 cx,
4618 ) {
4619 blocks.push(BlockLayout {
4620 id: block.id(),
4621 x_offset,
4622 row: None,
4623 element,
4624 available_space: size(width, element_size.height.into()),
4625 style,
4626 overlaps_gutter: true,
4627 is_buffer_header: block.is_buffer_header(),
4628 });
4629 }
4630 }
4631
4632 if resized_blocks.is_empty() {
4633 *scroll_width =
4634 (*scroll_width).max(fixed_block_max_width - editor_margins.gutter.width);
4635 }
4636
4637 RenderBlocksOutput {
4638 blocks,
4639 row_block_types,
4640 resized_blocks: (!resized_blocks.is_empty()).then_some(resized_blocks),
4641 }
4642 }
4643
4644 fn layout_blocks(
4645 &self,
4646 blocks: &mut Vec<BlockLayout>,
4647 hitbox: &Hitbox,
4648 line_height: Pixels,
4649 scroll_position: gpui::Point<ScrollOffset>,
4650 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4651 window: &mut Window,
4652 cx: &mut App,
4653 ) {
4654 for block in blocks {
4655 let mut origin = if let Some(row) = block.row {
4656 hitbox.origin
4657 + point(
4658 block.x_offset,
4659 Pixels::from(
4660 (row.as_f64() - scroll_position.y)
4661 * ScrollPixelOffset::from(line_height),
4662 ),
4663 )
4664 } else {
4665 // Position the block outside the visible area
4666 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
4667 };
4668
4669 if !matches!(block.style, BlockStyle::Sticky) {
4670 origin += point(Pixels::from(-scroll_pixel_position.x), Pixels::ZERO);
4671 }
4672
4673 let focus_handle =
4674 block
4675 .element
4676 .prepaint_as_root(origin, block.available_space, window, cx);
4677
4678 if let Some(focus_handle) = focus_handle {
4679 self.editor.update(cx, |editor, _cx| {
4680 editor.set_focused_block(FocusedBlock {
4681 id: block.id,
4682 focus_handle: focus_handle.downgrade(),
4683 });
4684 });
4685 }
4686 }
4687 }
4688
4689 fn layout_sticky_buffer_header(
4690 &self,
4691 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
4692 scroll_position: gpui::Point<ScrollOffset>,
4693 line_height: Pixels,
4694 right_margin: Pixels,
4695 snapshot: &EditorSnapshot,
4696 hitbox: &Hitbox,
4697 selected_buffer_ids: &Vec<BufferId>,
4698 blocks: &[BlockLayout],
4699 latest_selection_anchors: &HashMap<BufferId, Anchor>,
4700 window: &mut Window,
4701 cx: &mut App,
4702 ) -> AnyElement {
4703 let jump_data = header_jump_data(
4704 snapshot,
4705 DisplayRow(scroll_position.y as u32),
4706 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
4707 excerpt,
4708 latest_selection_anchors,
4709 );
4710
4711 let editor_bg_color = cx.theme().colors().editor_background;
4712
4713 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
4714
4715 let available_width = hitbox.bounds.size.width - right_margin;
4716
4717 let mut header = v_flex()
4718 .w_full()
4719 .relative()
4720 .child(
4721 div()
4722 .w(available_width)
4723 .h(FILE_HEADER_HEIGHT as f32 * line_height)
4724 .bg(linear_gradient(
4725 0.,
4726 linear_color_stop(editor_bg_color.opacity(0.), 0.),
4727 linear_color_stop(editor_bg_color, 0.6),
4728 ))
4729 .absolute()
4730 .top_0(),
4731 )
4732 .child(
4733 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
4734 .into_any_element(),
4735 )
4736 .into_any_element();
4737
4738 let mut origin = hitbox.origin;
4739 // Move floating header up to avoid colliding with the next buffer header.
4740 for block in blocks.iter() {
4741 if !block.is_buffer_header {
4742 continue;
4743 }
4744
4745 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position.y as u32) else {
4746 continue;
4747 };
4748
4749 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
4750 let offset = scroll_position.y - max_row as f64;
4751
4752 if offset > 0.0 {
4753 origin.y -= Pixels::from(offset * ScrollPixelOffset::from(line_height));
4754 }
4755 break;
4756 }
4757
4758 let size = size(
4759 AvailableSpace::Definite(available_width),
4760 AvailableSpace::MinContent,
4761 );
4762
4763 header.prepaint_as_root(origin, size, window, cx);
4764
4765 header
4766 }
4767
4768 fn layout_sticky_headers(
4769 &self,
4770 snapshot: &EditorSnapshot,
4771 editor_width: Pixels,
4772 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4773 line_height: Pixels,
4774 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4775 content_origin: gpui::Point<Pixels>,
4776 gutter_dimensions: &GutterDimensions,
4777 gutter_hitbox: &Hitbox,
4778 text_hitbox: &Hitbox,
4779 style: &EditorStyle,
4780 window: &mut Window,
4781 cx: &mut App,
4782 ) -> Option<StickyHeaders> {
4783 let show_line_numbers = snapshot
4784 .show_line_numbers
4785 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
4786
4787 let rows = Self::sticky_headers(self.editor.read(cx), snapshot, style, cx);
4788
4789 let mut lines = Vec::<StickyHeaderLine>::new();
4790
4791 for StickyHeader {
4792 item,
4793 sticky_row,
4794 start_point,
4795 offset,
4796 } in rows.into_iter().rev()
4797 {
4798 let line = layout_line(
4799 sticky_row,
4800 snapshot,
4801 &self.style,
4802 editor_width,
4803 is_row_soft_wrapped,
4804 window,
4805 cx,
4806 );
4807
4808 let line_number = show_line_numbers.then(|| {
4809 let number = (start_point.row + 1).to_string();
4810 let color = cx.theme().colors().editor_line_number;
4811 self.shape_line_number(SharedString::from(number), color, window)
4812 });
4813
4814 lines.push(StickyHeaderLine::new(
4815 sticky_row,
4816 line_height * offset as f32,
4817 line,
4818 line_number,
4819 item.range.start,
4820 line_height,
4821 scroll_pixel_position,
4822 content_origin,
4823 gutter_hitbox,
4824 text_hitbox,
4825 window,
4826 cx,
4827 ));
4828 }
4829
4830 lines.reverse();
4831 if lines.is_empty() {
4832 return None;
4833 }
4834
4835 Some(StickyHeaders {
4836 lines,
4837 gutter_background: cx.theme().colors().editor_gutter_background,
4838 content_background: self.style.background,
4839 gutter_right_padding: gutter_dimensions.right_padding,
4840 })
4841 }
4842
4843 pub(crate) fn sticky_headers(
4844 editor: &Editor,
4845 snapshot: &EditorSnapshot,
4846 style: &EditorStyle,
4847 cx: &App,
4848 ) -> Vec<StickyHeader> {
4849 let scroll_top = snapshot.scroll_position().y;
4850
4851 let mut end_rows = Vec::<DisplayRow>::new();
4852 let mut rows = Vec::<StickyHeader>::new();
4853
4854 let items = editor.sticky_headers(style, cx).unwrap_or_default();
4855
4856 for item in items {
4857 let start_point = item.range.start.to_point(snapshot.buffer_snapshot());
4858 let end_point = item.range.end.to_point(snapshot.buffer_snapshot());
4859
4860 let sticky_row = snapshot
4861 .display_snapshot
4862 .point_to_display_point(start_point, Bias::Left)
4863 .row();
4864 let end_row = snapshot
4865 .display_snapshot
4866 .point_to_display_point(end_point, Bias::Left)
4867 .row();
4868 let max_sticky_row = end_row.previous_row();
4869 if max_sticky_row <= sticky_row {
4870 continue;
4871 }
4872
4873 while end_rows
4874 .last()
4875 .is_some_and(|&last_end| last_end < sticky_row)
4876 {
4877 end_rows.pop();
4878 }
4879 let depth = end_rows.len();
4880 let adjusted_scroll_top = scroll_top + depth as f64;
4881
4882 if sticky_row.as_f64() >= adjusted_scroll_top || end_row.as_f64() <= adjusted_scroll_top
4883 {
4884 continue;
4885 }
4886
4887 let max_scroll_offset = max_sticky_row.as_f64() - scroll_top;
4888 let offset = (depth as f64).min(max_scroll_offset);
4889
4890 end_rows.push(end_row);
4891 rows.push(StickyHeader {
4892 item,
4893 sticky_row,
4894 start_point,
4895 offset,
4896 });
4897 }
4898
4899 rows
4900 }
4901
4902 fn layout_cursor_popovers(
4903 &self,
4904 line_height: Pixels,
4905 text_hitbox: &Hitbox,
4906 content_origin: gpui::Point<Pixels>,
4907 right_margin: Pixels,
4908 start_row: DisplayRow,
4909 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4910 line_layouts: &[LineWithInvisibles],
4911 cursor: DisplayPoint,
4912 cursor_point: Point,
4913 style: &EditorStyle,
4914 window: &mut Window,
4915 cx: &mut App,
4916 ) -> Option<ContextMenuLayout> {
4917 let mut min_menu_height = Pixels::ZERO;
4918 let mut max_menu_height = Pixels::ZERO;
4919 let mut height_above_menu = Pixels::ZERO;
4920 let height_below_menu = Pixels::ZERO;
4921 let mut edit_prediction_popover_visible = false;
4922 let mut context_menu_visible = false;
4923 let context_menu_placement;
4924
4925 {
4926 let editor = self.editor.read(cx);
4927 if editor.edit_prediction_visible_in_cursor_popover(editor.has_active_edit_prediction())
4928 {
4929 height_above_menu +=
4930 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
4931 edit_prediction_popover_visible = true;
4932 }
4933
4934 if editor.context_menu_visible()
4935 && let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin()
4936 {
4937 let (min_height_in_lines, max_height_in_lines) = editor
4938 .context_menu_options
4939 .as_ref()
4940 .map_or((3, 12), |options| {
4941 (options.min_entries_visible, options.max_entries_visible)
4942 });
4943
4944 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4945 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4946 context_menu_visible = true;
4947 }
4948 context_menu_placement = editor
4949 .context_menu_options
4950 .as_ref()
4951 .and_then(|options| options.placement.clone());
4952 }
4953
4954 let visible = edit_prediction_popover_visible || context_menu_visible;
4955 if !visible {
4956 return None;
4957 }
4958
4959 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
4960 let target_position = content_origin
4961 + gpui::Point {
4962 x: cmp::max(
4963 px(0.),
4964 Pixels::from(
4965 ScrollPixelOffset::from(
4966 cursor_row_layout.x_for_index(cursor.column() as usize),
4967 ) - scroll_pixel_position.x,
4968 ),
4969 ),
4970 y: cmp::max(
4971 px(0.),
4972 Pixels::from(
4973 cursor.row().next_row().as_f64() * ScrollPixelOffset::from(line_height)
4974 - scroll_pixel_position.y,
4975 ),
4976 ),
4977 };
4978
4979 let viewport_bounds =
4980 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4981 right: -right_margin - MENU_GAP,
4982 ..Default::default()
4983 });
4984
4985 let min_height = height_above_menu + min_menu_height + height_below_menu;
4986 let max_height = height_above_menu + max_menu_height + height_below_menu;
4987 let (laid_out_popovers, y_flipped) = self.layout_popovers_above_or_below_line(
4988 target_position,
4989 line_height,
4990 min_height,
4991 max_height,
4992 context_menu_placement,
4993 text_hitbox,
4994 viewport_bounds,
4995 window,
4996 cx,
4997 |height, max_width_for_stable_x, y_flipped, window, cx| {
4998 // First layout the menu to get its size - others can be at least this wide.
4999 let context_menu = if context_menu_visible {
5000 let menu_height = if y_flipped {
5001 height - height_below_menu
5002 } else {
5003 height - height_above_menu
5004 };
5005 let mut element = self
5006 .render_context_menu(line_height, menu_height, window, cx)
5007 .expect("Visible context menu should always render.");
5008 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
5009 Some((CursorPopoverType::CodeContextMenu, element, size))
5010 } else {
5011 None
5012 };
5013 let min_width = context_menu
5014 .as_ref()
5015 .map_or(px(0.), |(_, _, size)| size.width);
5016 let max_width = max_width_for_stable_x.max(
5017 context_menu
5018 .as_ref()
5019 .map_or(px(0.), |(_, _, size)| size.width),
5020 );
5021
5022 let edit_prediction = if edit_prediction_popover_visible {
5023 self.editor.update(cx, move |editor, cx| {
5024 let accept_binding = editor.accept_edit_prediction_keybind(
5025 EditPredictionGranularity::Full,
5026 window,
5027 cx,
5028 );
5029 let mut element = editor.render_edit_prediction_cursor_popover(
5030 min_width,
5031 max_width,
5032 cursor_point,
5033 style,
5034 accept_binding.keystroke(),
5035 window,
5036 cx,
5037 )?;
5038 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
5039 Some((CursorPopoverType::EditPrediction, element, size))
5040 })
5041 } else {
5042 None
5043 };
5044 vec![edit_prediction, context_menu]
5045 .into_iter()
5046 .flatten()
5047 .collect::<Vec<_>>()
5048 },
5049 )?;
5050
5051 let (menu_ix, (_, menu_bounds)) = laid_out_popovers
5052 .iter()
5053 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))?;
5054 let last_ix = laid_out_popovers.len() - 1;
5055 let menu_is_last = menu_ix == last_ix;
5056 let first_popover_bounds = laid_out_popovers[0].1;
5057 let last_popover_bounds = laid_out_popovers[last_ix].1;
5058
5059 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
5060 // right, and otherwise it goes below or to the right.
5061 let mut target_bounds = Bounds::from_corners(
5062 first_popover_bounds.origin,
5063 last_popover_bounds.bottom_right(),
5064 );
5065 target_bounds.size.width = menu_bounds.size.width;
5066
5067 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
5068 // based on this is preferred for layout stability.
5069 let mut max_target_bounds = target_bounds;
5070 max_target_bounds.size.height = max_height;
5071 if y_flipped {
5072 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
5073 }
5074
5075 // Add spacing around `target_bounds` and `max_target_bounds`.
5076 let mut extend_amount = Edges::all(MENU_GAP);
5077 if y_flipped {
5078 extend_amount.bottom = line_height;
5079 } else {
5080 extend_amount.top = line_height;
5081 }
5082 let target_bounds = target_bounds.extend(extend_amount);
5083 let max_target_bounds = max_target_bounds.extend(extend_amount);
5084
5085 let must_place_above_or_below =
5086 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
5087 laid_out_popovers[menu_ix + 1..]
5088 .iter()
5089 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
5090 } else {
5091 false
5092 };
5093
5094 let aside_bounds = self.layout_context_menu_aside(
5095 y_flipped,
5096 *menu_bounds,
5097 target_bounds,
5098 max_target_bounds,
5099 max_menu_height,
5100 must_place_above_or_below,
5101 text_hitbox,
5102 viewport_bounds,
5103 window,
5104 cx,
5105 );
5106
5107 if let Some(menu_bounds) = laid_out_popovers.iter().find_map(|(popover_type, bounds)| {
5108 if matches!(popover_type, CursorPopoverType::CodeContextMenu) {
5109 Some(*bounds)
5110 } else {
5111 None
5112 }
5113 }) {
5114 let bounds = if let Some(aside_bounds) = aside_bounds {
5115 menu_bounds.union(&aside_bounds)
5116 } else {
5117 menu_bounds
5118 };
5119 return Some(ContextMenuLayout { y_flipped, bounds });
5120 }
5121
5122 None
5123 }
5124
5125 fn layout_gutter_menu(
5126 &self,
5127 line_height: Pixels,
5128 text_hitbox: &Hitbox,
5129 content_origin: gpui::Point<Pixels>,
5130 right_margin: Pixels,
5131 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5132 gutter_overshoot: Pixels,
5133 window: &mut Window,
5134 cx: &mut App,
5135 ) {
5136 let editor = self.editor.read(cx);
5137 if !editor.context_menu_visible() {
5138 return;
5139 }
5140 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
5141 editor.context_menu_origin()
5142 else {
5143 return;
5144 };
5145 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
5146 // indicator than just a plain first column of the text field.
5147 let target_position = content_origin
5148 + gpui::Point {
5149 x: -gutter_overshoot,
5150 y: Pixels::from(
5151 gutter_row.next_row().as_f64() * ScrollPixelOffset::from(line_height)
5152 - scroll_pixel_position.y,
5153 ),
5154 };
5155
5156 let (min_height_in_lines, max_height_in_lines) = editor
5157 .context_menu_options
5158 .as_ref()
5159 .map_or((3, 12), |options| {
5160 (options.min_entries_visible, options.max_entries_visible)
5161 });
5162
5163 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
5164 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
5165 let viewport_bounds =
5166 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
5167 right: -right_margin - MENU_GAP,
5168 ..Default::default()
5169 });
5170 self.layout_popovers_above_or_below_line(
5171 target_position,
5172 line_height,
5173 min_height,
5174 max_height,
5175 editor
5176 .context_menu_options
5177 .as_ref()
5178 .and_then(|options| options.placement.clone()),
5179 text_hitbox,
5180 viewport_bounds,
5181 window,
5182 cx,
5183 move |height, _max_width_for_stable_x, _, window, cx| {
5184 let mut element = self
5185 .render_context_menu(line_height, height, window, cx)
5186 .expect("Visible context menu should always render.");
5187 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
5188 vec![(CursorPopoverType::CodeContextMenu, element, size)]
5189 },
5190 );
5191 }
5192
5193 fn layout_popovers_above_or_below_line(
5194 &self,
5195 target_position: gpui::Point<Pixels>,
5196 line_height: Pixels,
5197 min_height: Pixels,
5198 max_height: Pixels,
5199 placement: Option<ContextMenuPlacement>,
5200 text_hitbox: &Hitbox,
5201 viewport_bounds: Bounds<Pixels>,
5202 window: &mut Window,
5203 cx: &mut App,
5204 make_sized_popovers: impl FnOnce(
5205 Pixels,
5206 Pixels,
5207 bool,
5208 &mut Window,
5209 &mut App,
5210 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
5211 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
5212 let text_style = TextStyleRefinement {
5213 line_height: Some(DefiniteLength::Fraction(
5214 BufferLineHeight::Comfortable.value(),
5215 )),
5216 ..Default::default()
5217 };
5218 window.with_text_style(Some(text_style), |window| {
5219 // If the max height won't fit below and there is more space above, put it above the line.
5220 let bottom_y_when_flipped = target_position.y - line_height;
5221 let available_above = bottom_y_when_flipped - text_hitbox.top();
5222 let available_below = text_hitbox.bottom() - target_position.y;
5223 let y_overflows_below = max_height > available_below;
5224 let mut y_flipped = match placement {
5225 Some(ContextMenuPlacement::Above) => true,
5226 Some(ContextMenuPlacement::Below) => false,
5227 None => y_overflows_below && available_above > available_below,
5228 };
5229 let mut height = cmp::min(
5230 max_height,
5231 if y_flipped {
5232 available_above
5233 } else {
5234 available_below
5235 },
5236 );
5237
5238 // If the min height doesn't fit within text bounds, instead fit within the window.
5239 if height < min_height {
5240 let available_above = bottom_y_when_flipped;
5241 let available_below = viewport_bounds.bottom() - target_position.y;
5242 let (y_flipped_override, height_override) = match placement {
5243 Some(ContextMenuPlacement::Above) => {
5244 (true, cmp::min(available_above, min_height))
5245 }
5246 Some(ContextMenuPlacement::Below) => {
5247 (false, cmp::min(available_below, min_height))
5248 }
5249 None => {
5250 if available_below > min_height {
5251 (false, min_height)
5252 } else if available_above > min_height {
5253 (true, min_height)
5254 } else if available_above > available_below {
5255 (true, available_above)
5256 } else {
5257 (false, available_below)
5258 }
5259 }
5260 };
5261 y_flipped = y_flipped_override;
5262 height = height_override;
5263 }
5264
5265 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
5266
5267 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
5268 // for very narrow windows.
5269 let popovers =
5270 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
5271 if popovers.is_empty() {
5272 return None;
5273 }
5274
5275 let max_width = popovers
5276 .iter()
5277 .map(|(_, _, size)| size.width)
5278 .max()
5279 .unwrap_or_default();
5280
5281 let mut current_position = gpui::Point {
5282 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
5283 // overflow. Include space for the scrollbar.
5284 x: target_position
5285 .x
5286 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
5287 y: if y_flipped {
5288 bottom_y_when_flipped
5289 } else {
5290 target_position.y
5291 },
5292 };
5293
5294 let mut laid_out_popovers = popovers
5295 .into_iter()
5296 .map(|(popover_type, element, size)| {
5297 if y_flipped {
5298 current_position.y -= size.height;
5299 }
5300 let position = current_position;
5301 window.defer_draw(element, current_position, 1);
5302 if !y_flipped {
5303 current_position.y += size.height + MENU_GAP;
5304 } else {
5305 current_position.y -= MENU_GAP;
5306 }
5307 (popover_type, Bounds::new(position, size))
5308 })
5309 .collect::<Vec<_>>();
5310
5311 if y_flipped {
5312 laid_out_popovers.reverse();
5313 }
5314
5315 Some((laid_out_popovers, y_flipped))
5316 })
5317 }
5318
5319 fn layout_context_menu_aside(
5320 &self,
5321 y_flipped: bool,
5322 menu_bounds: Bounds<Pixels>,
5323 target_bounds: Bounds<Pixels>,
5324 max_target_bounds: Bounds<Pixels>,
5325 max_height: Pixels,
5326 must_place_above_or_below: bool,
5327 text_hitbox: &Hitbox,
5328 viewport_bounds: Bounds<Pixels>,
5329 window: &mut Window,
5330 cx: &mut App,
5331 ) -> Option<Bounds<Pixels>> {
5332 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
5333 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
5334 && !must_place_above_or_below
5335 {
5336 let max_width = cmp::min(
5337 available_within_viewport.right - px(1.),
5338 MENU_ASIDE_MAX_WIDTH,
5339 );
5340 let mut aside = self.render_context_menu_aside(
5341 size(max_width, max_height - POPOVER_Y_PADDING),
5342 window,
5343 cx,
5344 )?;
5345 let size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5346 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
5347 Some((aside, right_position, size))
5348 } else {
5349 let max_size = size(
5350 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
5351 // won't be needed here.
5352 cmp::min(
5353 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
5354 viewport_bounds.right(),
5355 ),
5356 cmp::min(
5357 max_height,
5358 cmp::max(
5359 available_within_viewport.top,
5360 available_within_viewport.bottom,
5361 ),
5362 ) - POPOVER_Y_PADDING,
5363 );
5364 let mut aside = self.render_context_menu_aside(max_size, window, cx)?;
5365 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5366
5367 let top_position = point(
5368 menu_bounds.origin.x,
5369 target_bounds.top() - actual_size.height,
5370 );
5371 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
5372
5373 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
5374 // Prefer to fit on the same side of the line as the menu, then on the other side of
5375 // the line.
5376 if !y_flipped && wanted.height < available.bottom {
5377 Some(bottom_position)
5378 } else if !y_flipped && wanted.height < available.top {
5379 Some(top_position)
5380 } else if y_flipped && wanted.height < available.top {
5381 Some(top_position)
5382 } else if y_flipped && wanted.height < available.bottom {
5383 Some(bottom_position)
5384 } else {
5385 None
5386 }
5387 };
5388
5389 // Prefer choosing a direction using max sizes rather than actual size for stability.
5390 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
5391 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
5392 let aside_position = fit_within(available_within_text, wanted)
5393 // Fallback: fit max size in window.
5394 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
5395 // Fallback: fit actual size in window.
5396 .or_else(|| fit_within(available_within_viewport, actual_size));
5397
5398 aside_position.map(|position| (aside, position, actual_size))
5399 };
5400
5401 // Skip drawing if it doesn't fit anywhere.
5402 if let Some((aside, position, size)) = positioned_aside {
5403 let aside_bounds = Bounds::new(position, size);
5404 window.defer_draw(aside, position, 2);
5405 return Some(aside_bounds);
5406 }
5407
5408 None
5409 }
5410
5411 fn render_context_menu(
5412 &self,
5413 line_height: Pixels,
5414 height: Pixels,
5415 window: &mut Window,
5416 cx: &mut App,
5417 ) -> Option<AnyElement> {
5418 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
5419 self.editor.update(cx, |editor, cx| {
5420 editor.render_context_menu(max_height_in_lines, window, cx)
5421 })
5422 }
5423
5424 fn render_context_menu_aside(
5425 &self,
5426 max_size: Size<Pixels>,
5427 window: &mut Window,
5428 cx: &mut App,
5429 ) -> Option<AnyElement> {
5430 if max_size.width < px(100.) || max_size.height < px(12.) {
5431 None
5432 } else {
5433 self.editor.update(cx, |editor, cx| {
5434 editor.render_context_menu_aside(max_size, window, cx)
5435 })
5436 }
5437 }
5438
5439 fn layout_mouse_context_menu(
5440 &self,
5441 editor_snapshot: &EditorSnapshot,
5442 visible_range: Range<DisplayRow>,
5443 content_origin: gpui::Point<Pixels>,
5444 window: &mut Window,
5445 cx: &mut App,
5446 ) -> Option<AnyElement> {
5447 let position = self.editor.update(cx, |editor, cx| {
5448 let visible_start_point = editor.display_to_pixel_point(
5449 DisplayPoint::new(visible_range.start, 0),
5450 editor_snapshot,
5451 window,
5452 cx,
5453 )?;
5454 let visible_end_point = editor.display_to_pixel_point(
5455 DisplayPoint::new(visible_range.end, 0),
5456 editor_snapshot,
5457 window,
5458 cx,
5459 )?;
5460
5461 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5462 let (source_display_point, position) = match mouse_context_menu.position {
5463 MenuPosition::PinnedToScreen(point) => (None, point),
5464 MenuPosition::PinnedToEditor { source, offset } => {
5465 let source_display_point = source.to_display_point(editor_snapshot);
5466 let source_point =
5467 editor.to_pixel_point(source, editor_snapshot, window, cx)?;
5468 let position = content_origin + source_point + offset;
5469 (Some(source_display_point), position)
5470 }
5471 };
5472
5473 let source_included = source_display_point.is_none_or(|source_display_point| {
5474 visible_range
5475 .to_inclusive()
5476 .contains(&source_display_point.row())
5477 });
5478 let position_included =
5479 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
5480 if !source_included && !position_included {
5481 None
5482 } else {
5483 Some(position)
5484 }
5485 })?;
5486
5487 let text_style = TextStyleRefinement {
5488 line_height: Some(DefiniteLength::Fraction(
5489 BufferLineHeight::Comfortable.value(),
5490 )),
5491 ..Default::default()
5492 };
5493 window.with_text_style(Some(text_style), |window| {
5494 let mut element = self.editor.read_with(cx, |editor, _| {
5495 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5496 let context_menu = mouse_context_menu.context_menu.clone();
5497
5498 Some(
5499 deferred(
5500 anchored()
5501 .position(position)
5502 .child(context_menu)
5503 .anchor(Corner::TopLeft)
5504 .snap_to_window_with_margin(px(8.)),
5505 )
5506 .with_priority(1)
5507 .into_any(),
5508 )
5509 })?;
5510
5511 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
5512 Some(element)
5513 })
5514 }
5515
5516 fn layout_hover_popovers(
5517 &self,
5518 snapshot: &EditorSnapshot,
5519 hitbox: &Hitbox,
5520 visible_display_row_range: Range<DisplayRow>,
5521 content_origin: gpui::Point<Pixels>,
5522 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5523 line_layouts: &[LineWithInvisibles],
5524 line_height: Pixels,
5525 em_width: Pixels,
5526 context_menu_layout: Option<ContextMenuLayout>,
5527 window: &mut Window,
5528 cx: &mut App,
5529 ) {
5530 struct MeasuredHoverPopover {
5531 element: AnyElement,
5532 size: Size<Pixels>,
5533 horizontal_offset: Pixels,
5534 }
5535
5536 let max_size = size(
5537 (120. * em_width) // Default size
5538 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5539 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5540 (16. * line_height) // Default size
5541 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5542 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5543 );
5544
5545 let hover_popovers = self.editor.update(cx, |editor, cx| {
5546 editor.hover_state.render(
5547 snapshot,
5548 visible_display_row_range.clone(),
5549 max_size,
5550 &editor.text_layout_details(window),
5551 window,
5552 cx,
5553 )
5554 });
5555 let Some((popover_position, hover_popovers)) = hover_popovers else {
5556 return;
5557 };
5558
5559 // This is safe because we check on layout whether the required row is available
5560 let hovered_row_layout = &line_layouts[popover_position
5561 .row()
5562 .minus(visible_display_row_range.start)
5563 as usize];
5564
5565 // Compute Hovered Point
5566 let x = hovered_row_layout.x_for_index(popover_position.column() as usize)
5567 - Pixels::from(scroll_pixel_position.x);
5568 let y = Pixels::from(
5569 popover_position.row().as_f64() * ScrollPixelOffset::from(line_height)
5570 - scroll_pixel_position.y,
5571 );
5572 let hovered_point = content_origin + point(x, y);
5573
5574 let mut overall_height = Pixels::ZERO;
5575 let mut measured_hover_popovers = Vec::new();
5576 for (position, mut hover_popover) in hover_popovers.into_iter().with_position() {
5577 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
5578 let horizontal_offset =
5579 (hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
5580 .min(Pixels::ZERO);
5581 match position {
5582 itertools::Position::Middle | itertools::Position::Last => {
5583 overall_height += HOVER_POPOVER_GAP
5584 }
5585 _ => {}
5586 }
5587 overall_height += size.height;
5588 measured_hover_popovers.push(MeasuredHoverPopover {
5589 element: hover_popover,
5590 size,
5591 horizontal_offset,
5592 });
5593 }
5594
5595 fn draw_occluder(
5596 width: Pixels,
5597 origin: gpui::Point<Pixels>,
5598 window: &mut Window,
5599 cx: &mut App,
5600 ) {
5601 let mut occlusion = div()
5602 .size_full()
5603 .occlude()
5604 .on_mouse_move(|_, _, cx| cx.stop_propagation())
5605 .into_any_element();
5606 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
5607 window.defer_draw(occlusion, origin, 2);
5608 }
5609
5610 fn place_popovers_above(
5611 hovered_point: gpui::Point<Pixels>,
5612 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5613 window: &mut Window,
5614 cx: &mut App,
5615 ) {
5616 let mut current_y = hovered_point.y;
5617 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5618 let size = popover.size;
5619 let popover_origin = point(
5620 hovered_point.x + popover.horizontal_offset,
5621 current_y - size.height,
5622 );
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 - HOVER_POPOVER_GAP);
5627 draw_occluder(size.width, origin, window, cx);
5628 }
5629
5630 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5631 }
5632 }
5633
5634 fn place_popovers_below(
5635 hovered_point: gpui::Point<Pixels>,
5636 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5637 line_height: Pixels,
5638 window: &mut Window,
5639 cx: &mut App,
5640 ) {
5641 let mut current_y = hovered_point.y + line_height;
5642 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5643 let size = popover.size;
5644 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5645
5646 window.defer_draw(popover.element, popover_origin, 2);
5647 if position != itertools::Position::Last {
5648 let origin = point(popover_origin.x, popover_origin.y + size.height);
5649 draw_occluder(size.width, origin, window, cx);
5650 }
5651
5652 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5653 }
5654 }
5655
5656 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5657 context_menu_layout
5658 .as_ref()
5659 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5660 };
5661
5662 let can_place_above = {
5663 let mut bounds_above = Vec::new();
5664 let mut current_y = hovered_point.y;
5665 for popover in &measured_hover_popovers {
5666 let size = popover.size;
5667 let popover_origin = point(
5668 hovered_point.x + popover.horizontal_offset,
5669 current_y - size.height,
5670 );
5671 bounds_above.push(Bounds::new(popover_origin, size));
5672 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5673 }
5674 bounds_above
5675 .iter()
5676 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5677 };
5678
5679 let can_place_below = || {
5680 let mut bounds_below = Vec::new();
5681 let mut current_y = hovered_point.y + line_height;
5682 for popover in &measured_hover_popovers {
5683 let size = popover.size;
5684 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5685 bounds_below.push(Bounds::new(popover_origin, size));
5686 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5687 }
5688 bounds_below
5689 .iter()
5690 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5691 };
5692
5693 if can_place_above {
5694 // try placing above hovered point
5695 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5696 } else if can_place_below() {
5697 // try placing below hovered point
5698 place_popovers_below(
5699 hovered_point,
5700 measured_hover_popovers,
5701 line_height,
5702 window,
5703 cx,
5704 );
5705 } else {
5706 // try to place popovers around the context menu
5707 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5708 let total_width = measured_hover_popovers
5709 .iter()
5710 .map(|p| p.size.width)
5711 .max()
5712 .unwrap_or(Pixels::ZERO);
5713 let y_for_horizontal_positioning = if menu.y_flipped {
5714 menu.bounds.bottom() - overall_height
5715 } else {
5716 menu.bounds.top()
5717 };
5718 let possible_origins = vec![
5719 // left of context menu
5720 point(
5721 menu.bounds.left() - total_width - HOVER_POPOVER_GAP,
5722 y_for_horizontal_positioning,
5723 ),
5724 // right of context menu
5725 point(
5726 menu.bounds.right() + HOVER_POPOVER_GAP,
5727 y_for_horizontal_positioning,
5728 ),
5729 // top of context menu
5730 point(
5731 menu.bounds.left(),
5732 menu.bounds.top() - overall_height - HOVER_POPOVER_GAP,
5733 ),
5734 // bottom of context menu
5735 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5736 ];
5737 possible_origins.into_iter().find(|&origin| {
5738 Bounds::new(origin, size(total_width, overall_height))
5739 .is_contained_within(hitbox)
5740 })
5741 });
5742 if let Some(origin) = origin_surrounding_menu {
5743 let mut current_y = origin.y;
5744 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5745 let size = popover.size;
5746 let popover_origin = point(origin.x, current_y);
5747
5748 window.defer_draw(popover.element, popover_origin, 2);
5749 if position != itertools::Position::Last {
5750 let origin = point(popover_origin.x, popover_origin.y + size.height);
5751 draw_occluder(size.width, origin, window, cx);
5752 }
5753
5754 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5755 }
5756 } else {
5757 // fallback to existing above/below cursor logic
5758 // this might overlap menu or overflow in rare case
5759 if can_place_above {
5760 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5761 } else {
5762 place_popovers_below(
5763 hovered_point,
5764 measured_hover_popovers,
5765 line_height,
5766 window,
5767 cx,
5768 );
5769 }
5770 }
5771 }
5772 }
5773
5774 fn layout_word_diff_highlights(
5775 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5776 row_infos: &[RowInfo],
5777 start_row: DisplayRow,
5778 snapshot: &EditorSnapshot,
5779 highlighted_ranges: &mut Vec<(Range<DisplayPoint>, Hsla)>,
5780 cx: &mut App,
5781 ) {
5782 let colors = cx.theme().colors();
5783
5784 let word_highlights = display_hunks
5785 .into_iter()
5786 .filter_map(|(hunk, _)| match hunk {
5787 DisplayDiffHunk::Unfolded {
5788 word_diffs, status, ..
5789 } => Some((word_diffs, status)),
5790 _ => None,
5791 })
5792 .filter(|(_, status)| status.is_modified())
5793 .flat_map(|(word_diffs, _)| word_diffs)
5794 .filter_map(|word_diff| {
5795 let start_point = word_diff.start.to_display_point(&snapshot.display_snapshot);
5796 let end_point = word_diff.end.to_display_point(&snapshot.display_snapshot);
5797 let start_row_offset = start_point.row().0.saturating_sub(start_row.0) as usize;
5798
5799 row_infos
5800 .get(start_row_offset)
5801 .and_then(|row_info| row_info.diff_status)
5802 .and_then(|diff_status| {
5803 let background_color = match diff_status.kind {
5804 DiffHunkStatusKind::Added => colors.version_control_word_added,
5805 DiffHunkStatusKind::Deleted => colors.version_control_word_deleted,
5806 DiffHunkStatusKind::Modified => {
5807 debug_panic!("modified diff status for row info");
5808 return None;
5809 }
5810 };
5811 Some((start_point..end_point, background_color))
5812 })
5813 });
5814
5815 highlighted_ranges.extend(word_highlights);
5816 }
5817
5818 fn layout_diff_hunk_controls(
5819 &self,
5820 row_range: Range<DisplayRow>,
5821 row_infos: &[RowInfo],
5822 text_hitbox: &Hitbox,
5823 newest_cursor_position: Option<DisplayPoint>,
5824 line_height: Pixels,
5825 right_margin: Pixels,
5826 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5827 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5828 highlighted_rows: &BTreeMap<DisplayRow, LineHighlight>,
5829 editor: Entity<Editor>,
5830 window: &mut Window,
5831 cx: &mut App,
5832 ) -> (Vec<AnyElement>, Vec<(DisplayRow, Bounds<Pixels>)>) {
5833 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
5834 let hovered_diff_hunk_row = editor.read(cx).hovered_diff_hunk_row;
5835
5836 let mut controls = vec![];
5837 let mut control_bounds = vec![];
5838
5839 let active_positions = [
5840 hovered_diff_hunk_row.map(|row| DisplayPoint::new(row, 0)),
5841 newest_cursor_position,
5842 ];
5843
5844 for (hunk, _) in display_hunks {
5845 if let DisplayDiffHunk::Unfolded {
5846 display_row_range,
5847 multi_buffer_range,
5848 status,
5849 is_created_file,
5850 ..
5851 } = &hunk
5852 {
5853 if display_row_range.start < row_range.start
5854 || display_row_range.start >= row_range.end
5855 {
5856 continue;
5857 }
5858 if highlighted_rows
5859 .get(&display_row_range.start)
5860 .and_then(|highlight| highlight.type_id)
5861 .is_some_and(|type_id| {
5862 [
5863 TypeId::of::<ConflictsOuter>(),
5864 TypeId::of::<ConflictsOursMarker>(),
5865 TypeId::of::<ConflictsOurs>(),
5866 TypeId::of::<ConflictsTheirs>(),
5867 TypeId::of::<ConflictsTheirsMarker>(),
5868 ]
5869 .contains(&type_id)
5870 })
5871 {
5872 continue;
5873 }
5874 let row_ix = (display_row_range.start - row_range.start).0 as usize;
5875 if row_infos[row_ix].diff_status.is_none() {
5876 continue;
5877 }
5878 if row_infos[row_ix]
5879 .diff_status
5880 .is_some_and(|status| status.is_added())
5881 && !status.is_added()
5882 {
5883 continue;
5884 }
5885
5886 if active_positions
5887 .iter()
5888 .any(|p| p.is_some_and(|p| display_row_range.contains(&p.row())))
5889 {
5890 let y = (display_row_range.start.as_f64()
5891 * ScrollPixelOffset::from(line_height)
5892 + ScrollPixelOffset::from(text_hitbox.bounds.top())
5893 - scroll_pixel_position.y)
5894 .into();
5895
5896 let mut element = render_diff_hunk_controls(
5897 display_row_range.start.0,
5898 status,
5899 multi_buffer_range.clone(),
5900 *is_created_file,
5901 line_height,
5902 &editor,
5903 window,
5904 cx,
5905 );
5906 let size =
5907 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
5908
5909 let x = text_hitbox.bounds.right() - right_margin - px(10.) - size.width;
5910
5911 let bounds = Bounds::new(gpui::Point::new(x, y), size);
5912 control_bounds.push((display_row_range.start, bounds));
5913
5914 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
5915 element.prepaint(window, cx)
5916 });
5917 controls.push(element);
5918 }
5919 }
5920 }
5921
5922 (controls, control_bounds)
5923 }
5924
5925 fn layout_signature_help(
5926 &self,
5927 hitbox: &Hitbox,
5928 content_origin: gpui::Point<Pixels>,
5929 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5930 newest_selection_head: Option<DisplayPoint>,
5931 start_row: DisplayRow,
5932 line_layouts: &[LineWithInvisibles],
5933 line_height: Pixels,
5934 em_width: Pixels,
5935 context_menu_layout: Option<ContextMenuLayout>,
5936 window: &mut Window,
5937 cx: &mut App,
5938 ) {
5939 if !self.editor.focus_handle(cx).is_focused(window) {
5940 return;
5941 }
5942 let Some(newest_selection_head) = newest_selection_head else {
5943 return;
5944 };
5945
5946 let max_size = size(
5947 (120. * em_width) // Default size
5948 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5949 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5950 (16. * line_height) // Default size
5951 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5952 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5953 );
5954
5955 let maybe_element = self.editor.update(cx, |editor, cx| {
5956 if let Some(popover) = editor.signature_help_state.popover_mut() {
5957 let element = popover.render(max_size, window, cx);
5958 Some(element)
5959 } else {
5960 None
5961 }
5962 });
5963 let Some(mut element) = maybe_element else {
5964 return;
5965 };
5966
5967 let selection_row = newest_selection_head.row();
5968 let Some(cursor_row_layout) = (selection_row >= start_row)
5969 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
5970 .flatten()
5971 else {
5972 return;
5973 };
5974
5975 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
5976 - Pixels::from(scroll_pixel_position.x);
5977 let target_y = Pixels::from(
5978 selection_row.as_f64() * ScrollPixelOffset::from(line_height) - scroll_pixel_position.y,
5979 );
5980 let target_point = content_origin + point(target_x, target_y);
5981
5982 let actual_size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
5983
5984 let (popover_bounds_above, popover_bounds_below) = {
5985 let horizontal_offset = (hitbox.top_right().x
5986 - POPOVER_RIGHT_OFFSET
5987 - (target_point.x + actual_size.width))
5988 .min(Pixels::ZERO);
5989 let initial_x = target_point.x + horizontal_offset;
5990 (
5991 Bounds::new(
5992 point(initial_x, target_point.y - actual_size.height),
5993 actual_size,
5994 ),
5995 Bounds::new(
5996 point(initial_x, target_point.y + line_height + HOVER_POPOVER_GAP),
5997 actual_size,
5998 ),
5999 )
6000 };
6001
6002 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
6003 context_menu_layout
6004 .as_ref()
6005 .is_some_and(|menu| bounds.intersects(&menu.bounds))
6006 };
6007
6008 let final_origin = if popover_bounds_above.is_contained_within(hitbox)
6009 && !intersects_menu(popover_bounds_above)
6010 {
6011 // try placing above cursor
6012 popover_bounds_above.origin
6013 } else if popover_bounds_below.is_contained_within(hitbox)
6014 && !intersects_menu(popover_bounds_below)
6015 {
6016 // try placing below cursor
6017 popover_bounds_below.origin
6018 } else {
6019 // try surrounding context menu if exists
6020 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
6021 let y_for_horizontal_positioning = if menu.y_flipped {
6022 menu.bounds.bottom() - actual_size.height
6023 } else {
6024 menu.bounds.top()
6025 };
6026 let possible_origins = vec![
6027 // left of context menu
6028 point(
6029 menu.bounds.left() - actual_size.width - HOVER_POPOVER_GAP,
6030 y_for_horizontal_positioning,
6031 ),
6032 // right of context menu
6033 point(
6034 menu.bounds.right() + HOVER_POPOVER_GAP,
6035 y_for_horizontal_positioning,
6036 ),
6037 // top of context menu
6038 point(
6039 menu.bounds.left(),
6040 menu.bounds.top() - actual_size.height - HOVER_POPOVER_GAP,
6041 ),
6042 // bottom of context menu
6043 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
6044 ];
6045 possible_origins
6046 .into_iter()
6047 .find(|&origin| Bounds::new(origin, actual_size).is_contained_within(hitbox))
6048 });
6049 origin_surrounding_menu.unwrap_or_else(|| {
6050 // fallback to existing above/below cursor logic
6051 // this might overlap menu or overflow in rare case
6052 if popover_bounds_above.is_contained_within(hitbox) {
6053 popover_bounds_above.origin
6054 } else {
6055 popover_bounds_below.origin
6056 }
6057 })
6058 };
6059
6060 window.defer_draw(element, final_origin, 2);
6061 }
6062
6063 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
6064 window.paint_layer(layout.hitbox.bounds, |window| {
6065 let scroll_top = layout.position_map.snapshot.scroll_position().y;
6066 let gutter_bg = cx.theme().colors().editor_gutter_background;
6067 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
6068 window.paint_quad(fill(
6069 layout.position_map.text_hitbox.bounds,
6070 self.style.background,
6071 ));
6072
6073 if matches!(
6074 layout.mode,
6075 EditorMode::Full { .. } | EditorMode::Minimap { .. }
6076 ) {
6077 let show_active_line_background = match layout.mode {
6078 EditorMode::Full {
6079 show_active_line_background,
6080 ..
6081 } => show_active_line_background,
6082 EditorMode::Minimap { .. } => true,
6083 _ => false,
6084 };
6085 let mut active_rows = layout.active_rows.iter().peekable();
6086 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
6087 let mut end_row = start_row.0;
6088 while active_rows
6089 .peek()
6090 .is_some_and(|(active_row, has_selection)| {
6091 active_row.0 == end_row + 1
6092 && has_selection.selection == contains_non_empty_selection.selection
6093 })
6094 {
6095 active_rows.next().unwrap();
6096 end_row += 1;
6097 }
6098
6099 if show_active_line_background && !contains_non_empty_selection.selection {
6100 let highlight_h_range =
6101 match layout.position_map.snapshot.current_line_highlight {
6102 CurrentLineHighlight::Gutter => Some(Range {
6103 start: layout.hitbox.left(),
6104 end: layout.gutter_hitbox.right(),
6105 }),
6106 CurrentLineHighlight::Line => Some(Range {
6107 start: layout.position_map.text_hitbox.bounds.left(),
6108 end: layout.position_map.text_hitbox.bounds.right(),
6109 }),
6110 CurrentLineHighlight::All => Some(Range {
6111 start: layout.hitbox.left(),
6112 end: layout.hitbox.right(),
6113 }),
6114 CurrentLineHighlight::None => None,
6115 };
6116 if let Some(range) = highlight_h_range {
6117 let active_line_bg = cx.theme().colors().editor_active_line_background;
6118 let bounds = Bounds {
6119 origin: point(
6120 range.start,
6121 layout.hitbox.origin.y
6122 + Pixels::from(
6123 (start_row.as_f64() - scroll_top)
6124 * ScrollPixelOffset::from(
6125 layout.position_map.line_height,
6126 ),
6127 ),
6128 ),
6129 size: size(
6130 range.end - range.start,
6131 layout.position_map.line_height
6132 * (end_row - start_row.0 + 1) as f32,
6133 ),
6134 };
6135 window.paint_quad(fill(bounds, active_line_bg));
6136 }
6137 }
6138 }
6139
6140 let mut paint_highlight = |highlight_row_start: DisplayRow,
6141 highlight_row_end: DisplayRow,
6142 highlight: crate::LineHighlight,
6143 edges| {
6144 let mut origin_x = layout.hitbox.left();
6145 let mut width = layout.hitbox.size.width;
6146 if !highlight.include_gutter {
6147 origin_x += layout.gutter_hitbox.size.width;
6148 width -= layout.gutter_hitbox.size.width;
6149 }
6150
6151 let origin = point(
6152 origin_x,
6153 layout.hitbox.origin.y
6154 + Pixels::from(
6155 (highlight_row_start.as_f64() - scroll_top)
6156 * ScrollPixelOffset::from(layout.position_map.line_height),
6157 ),
6158 );
6159 let size = size(
6160 width,
6161 layout.position_map.line_height
6162 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
6163 );
6164 let mut quad = fill(Bounds { origin, size }, highlight.background);
6165 if let Some(border_color) = highlight.border {
6166 quad.border_color = border_color;
6167 quad.border_widths = edges
6168 }
6169 window.paint_quad(quad);
6170 };
6171
6172 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
6173 None;
6174 for (&new_row, &new_background) in &layout.highlighted_rows {
6175 match &mut current_paint {
6176 &mut Some((current_background, ref mut current_range, mut edges)) => {
6177 let new_range_started = current_background != new_background
6178 || current_range.end.next_row() != new_row;
6179 if new_range_started {
6180 if current_range.end.next_row() == new_row {
6181 edges.bottom = px(0.);
6182 };
6183 paint_highlight(
6184 current_range.start,
6185 current_range.end,
6186 current_background,
6187 edges,
6188 );
6189 let edges = Edges {
6190 top: if current_range.end.next_row() != new_row {
6191 px(1.)
6192 } else {
6193 px(0.)
6194 },
6195 bottom: px(1.),
6196 ..Default::default()
6197 };
6198 current_paint = Some((new_background, new_row..new_row, edges));
6199 continue;
6200 } else {
6201 current_range.end = current_range.end.next_row();
6202 }
6203 }
6204 None => {
6205 let edges = Edges {
6206 top: px(1.),
6207 bottom: px(1.),
6208 ..Default::default()
6209 };
6210 current_paint = Some((new_background, new_row..new_row, edges))
6211 }
6212 };
6213 }
6214 if let Some((color, range, edges)) = current_paint {
6215 paint_highlight(range.start, range.end, color, edges);
6216 }
6217
6218 for (guide_x, active) in layout.wrap_guides.iter() {
6219 let color = if *active {
6220 cx.theme().colors().editor_active_wrap_guide
6221 } else {
6222 cx.theme().colors().editor_wrap_guide
6223 };
6224 window.paint_quad(fill(
6225 Bounds {
6226 origin: point(*guide_x, layout.position_map.text_hitbox.origin.y),
6227 size: size(px(1.), layout.position_map.text_hitbox.size.height),
6228 },
6229 color,
6230 ));
6231 }
6232 }
6233 })
6234 }
6235
6236 fn paint_indent_guides(
6237 &mut self,
6238 layout: &mut EditorLayout,
6239 window: &mut Window,
6240 cx: &mut App,
6241 ) {
6242 let Some(indent_guides) = &layout.indent_guides else {
6243 return;
6244 };
6245
6246 let faded_color = |color: Hsla, alpha: f32| {
6247 let mut faded = color;
6248 faded.a = alpha;
6249 faded
6250 };
6251
6252 for indent_guide in indent_guides {
6253 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
6254 let settings = &indent_guide.settings;
6255
6256 // TODO fixed for now, expose them through themes later
6257 const INDENT_AWARE_ALPHA: f32 = 0.2;
6258 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
6259 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
6260 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
6261
6262 let line_color = match (settings.coloring, indent_guide.active) {
6263 (IndentGuideColoring::Disabled, _) => None,
6264 (IndentGuideColoring::Fixed, false) => {
6265 Some(cx.theme().colors().editor_indent_guide)
6266 }
6267 (IndentGuideColoring::Fixed, true) => {
6268 Some(cx.theme().colors().editor_indent_guide_active)
6269 }
6270 (IndentGuideColoring::IndentAware, false) => {
6271 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
6272 }
6273 (IndentGuideColoring::IndentAware, true) => {
6274 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
6275 }
6276 };
6277
6278 let background_color = match (settings.background_coloring, indent_guide.active) {
6279 (IndentGuideBackgroundColoring::Disabled, _) => None,
6280 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
6281 indent_accent_colors,
6282 INDENT_AWARE_BACKGROUND_ALPHA,
6283 )),
6284 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
6285 indent_accent_colors,
6286 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
6287 )),
6288 };
6289
6290 let requested_line_width = if indent_guide.active {
6291 settings.active_line_width
6292 } else {
6293 settings.line_width
6294 }
6295 .clamp(1, 10);
6296 let mut line_indicator_width = 0.;
6297 if let Some(color) = line_color {
6298 window.paint_quad(fill(
6299 Bounds {
6300 origin: indent_guide.origin,
6301 size: size(px(requested_line_width as f32), indent_guide.length),
6302 },
6303 color,
6304 ));
6305 line_indicator_width = requested_line_width as f32;
6306 }
6307
6308 if let Some(color) = background_color {
6309 let width = indent_guide.single_indent_width - px(line_indicator_width);
6310 window.paint_quad(fill(
6311 Bounds {
6312 origin: point(
6313 indent_guide.origin.x + px(line_indicator_width),
6314 indent_guide.origin.y,
6315 ),
6316 size: size(width, indent_guide.length),
6317 },
6318 color,
6319 ));
6320 }
6321 }
6322 }
6323
6324 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6325 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
6326
6327 let line_height = layout.position_map.line_height;
6328 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
6329
6330 for line_layout in layout.line_numbers.values() {
6331 for LineNumberSegment {
6332 shaped_line,
6333 hitbox,
6334 } in &line_layout.segments
6335 {
6336 let Some(hitbox) = hitbox else {
6337 continue;
6338 };
6339
6340 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
6341 let color = cx.theme().colors().editor_hover_line_number;
6342
6343 let line = self.shape_line_number(shaped_line.text.clone(), color, window);
6344 line.paint(hitbox.origin, line_height, window, cx).log_err()
6345 } else {
6346 shaped_line
6347 .paint(hitbox.origin, line_height, window, cx)
6348 .log_err()
6349 }) else {
6350 continue;
6351 };
6352
6353 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
6354 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
6355 if is_singleton {
6356 window.set_cursor_style(CursorStyle::IBeam, hitbox);
6357 } else {
6358 window.set_cursor_style(CursorStyle::PointingHand, hitbox);
6359 }
6360 }
6361 }
6362 }
6363
6364 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6365 if layout.display_hunks.is_empty() {
6366 return;
6367 }
6368
6369 let line_height = layout.position_map.line_height;
6370 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6371 for (hunk, hitbox) in &layout.display_hunks {
6372 let hunk_to_paint = match hunk {
6373 DisplayDiffHunk::Folded { .. } => {
6374 let hunk_bounds = Self::diff_hunk_bounds(
6375 &layout.position_map.snapshot,
6376 line_height,
6377 layout.gutter_hitbox.bounds,
6378 hunk,
6379 );
6380 Some((
6381 hunk_bounds,
6382 cx.theme().colors().version_control_modified,
6383 Corners::all(px(0.)),
6384 DiffHunkStatus::modified_none(),
6385 ))
6386 }
6387 DisplayDiffHunk::Unfolded {
6388 status,
6389 display_row_range,
6390 ..
6391 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
6392 DiffHunkStatusKind::Added => (
6393 hunk_hitbox.bounds,
6394 cx.theme().colors().version_control_added,
6395 Corners::all(px(0.)),
6396 *status,
6397 ),
6398 DiffHunkStatusKind::Modified => (
6399 hunk_hitbox.bounds,
6400 cx.theme().colors().version_control_modified,
6401 Corners::all(px(0.)),
6402 *status,
6403 ),
6404 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
6405 hunk_hitbox.bounds,
6406 cx.theme().colors().version_control_deleted,
6407 Corners::all(px(0.)),
6408 *status,
6409 ),
6410 DiffHunkStatusKind::Deleted => (
6411 Bounds::new(
6412 point(
6413 hunk_hitbox.origin.x - hunk_hitbox.size.width,
6414 hunk_hitbox.origin.y,
6415 ),
6416 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
6417 ),
6418 cx.theme().colors().version_control_deleted,
6419 Corners::all(1. * line_height),
6420 *status,
6421 ),
6422 }),
6423 };
6424
6425 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
6426 // Flatten the background color with the editor color to prevent
6427 // elements below transparent hunks from showing through
6428 let flattened_background_color = cx
6429 .theme()
6430 .colors()
6431 .editor_background
6432 .blend(background_color);
6433
6434 if !Self::diff_hunk_hollow(status, cx) {
6435 window.paint_quad(quad(
6436 hunk_bounds,
6437 corner_radii,
6438 flattened_background_color,
6439 Edges::default(),
6440 transparent_black(),
6441 BorderStyle::default(),
6442 ));
6443 } else {
6444 let flattened_unstaged_background_color = cx
6445 .theme()
6446 .colors()
6447 .editor_background
6448 .blend(background_color.opacity(0.3));
6449
6450 window.paint_quad(quad(
6451 hunk_bounds,
6452 corner_radii,
6453 flattened_unstaged_background_color,
6454 Edges::all(px(1.0)),
6455 flattened_background_color,
6456 BorderStyle::Solid,
6457 ));
6458 }
6459 }
6460 }
6461 });
6462 }
6463
6464 fn gutter_strip_width(line_height: Pixels) -> Pixels {
6465 (0.275 * line_height).floor()
6466 }
6467
6468 fn diff_hunk_bounds(
6469 snapshot: &EditorSnapshot,
6470 line_height: Pixels,
6471 gutter_bounds: Bounds<Pixels>,
6472 hunk: &DisplayDiffHunk,
6473 ) -> Bounds<Pixels> {
6474 let scroll_position = snapshot.scroll_position();
6475 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
6476 let gutter_strip_width = Self::gutter_strip_width(line_height);
6477
6478 match hunk {
6479 DisplayDiffHunk::Folded { display_row, .. } => {
6480 let start_y = (display_row.as_f64() * ScrollPixelOffset::from(line_height)
6481 - scroll_top)
6482 .into();
6483 let end_y = start_y + line_height;
6484 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6485 let highlight_size = size(gutter_strip_width, end_y - start_y);
6486 Bounds::new(highlight_origin, highlight_size)
6487 }
6488 DisplayDiffHunk::Unfolded {
6489 display_row_range,
6490 status,
6491 ..
6492 } => {
6493 if status.is_deleted() && display_row_range.is_empty() {
6494 let row = display_row_range.start;
6495
6496 let offset = ScrollPixelOffset::from(line_height / 2.);
6497 let start_y =
6498 (row.as_f64() * ScrollPixelOffset::from(line_height) - offset - scroll_top)
6499 .into();
6500 let end_y = start_y + line_height;
6501
6502 let width = (0.35 * line_height).floor();
6503 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6504 let highlight_size = size(width, end_y - start_y);
6505 Bounds::new(highlight_origin, highlight_size)
6506 } else {
6507 let start_row = display_row_range.start;
6508 let end_row = display_row_range.end;
6509 // If we're in a multibuffer, row range span might include an
6510 // excerpt header, so if we were to draw the marker straight away,
6511 // the hunk might include the rows of that header.
6512 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
6513 // Instead, we simply check whether the range we're dealing with includes
6514 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
6515 let end_row_in_current_excerpt = snapshot
6516 .blocks_in_range(start_row..end_row)
6517 .find_map(|(start_row, block)| {
6518 if matches!(
6519 block,
6520 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
6521 ) {
6522 Some(start_row)
6523 } else {
6524 None
6525 }
6526 })
6527 .unwrap_or(end_row);
6528
6529 let start_y = (start_row.as_f64() * ScrollPixelOffset::from(line_height)
6530 - scroll_top)
6531 .into();
6532 let end_y = Pixels::from(
6533 end_row_in_current_excerpt.as_f64() * ScrollPixelOffset::from(line_height)
6534 - scroll_top,
6535 );
6536
6537 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6538 let highlight_size = size(gutter_strip_width, end_y - start_y);
6539 Bounds::new(highlight_origin, highlight_size)
6540 }
6541 }
6542 }
6543 }
6544
6545 fn paint_gutter_indicators(
6546 &self,
6547 layout: &mut EditorLayout,
6548 window: &mut Window,
6549 cx: &mut App,
6550 ) {
6551 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6552 window.with_element_namespace("crease_toggles", |window| {
6553 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
6554 crease_toggle.paint(window, cx);
6555 }
6556 });
6557
6558 window.with_element_namespace("expand_toggles", |window| {
6559 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
6560 expand_toggle.paint(window, cx);
6561 }
6562 });
6563
6564 for breakpoint in layout.breakpoints.iter_mut() {
6565 breakpoint.paint(window, cx);
6566 }
6567
6568 for test_indicator in layout.test_indicators.iter_mut() {
6569 test_indicator.paint(window, cx);
6570 }
6571 });
6572 }
6573
6574 fn paint_gutter_highlights(
6575 &self,
6576 layout: &mut EditorLayout,
6577 window: &mut Window,
6578 cx: &mut App,
6579 ) {
6580 for (_, hunk_hitbox) in &layout.display_hunks {
6581 if let Some(hunk_hitbox) = hunk_hitbox
6582 && !self
6583 .editor
6584 .read(cx)
6585 .buffer()
6586 .read(cx)
6587 .all_diff_hunks_expanded()
6588 {
6589 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
6590 }
6591 }
6592
6593 let show_git_gutter = layout
6594 .position_map
6595 .snapshot
6596 .show_git_diff_gutter
6597 .unwrap_or_else(|| {
6598 matches!(
6599 ProjectSettings::get_global(cx).git.git_gutter,
6600 GitGutterSetting::TrackedFiles
6601 )
6602 });
6603 if show_git_gutter {
6604 Self::paint_gutter_diff_hunks(layout, window, cx)
6605 }
6606
6607 let highlight_width = 0.275 * layout.position_map.line_height;
6608 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
6609 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6610 for (range, color) in &layout.highlighted_gutter_ranges {
6611 let start_row = if range.start.row() < layout.visible_display_row_range.start {
6612 layout.visible_display_row_range.start - DisplayRow(1)
6613 } else {
6614 range.start.row()
6615 };
6616 let end_row = if range.end.row() > layout.visible_display_row_range.end {
6617 layout.visible_display_row_range.end + DisplayRow(1)
6618 } else {
6619 range.end.row()
6620 };
6621
6622 let start_y = layout.gutter_hitbox.top()
6623 + Pixels::from(
6624 start_row.0 as f64
6625 * ScrollPixelOffset::from(layout.position_map.line_height)
6626 - layout.position_map.scroll_pixel_position.y,
6627 );
6628 let end_y = layout.gutter_hitbox.top()
6629 + Pixels::from(
6630 (end_row.0 + 1) as f64
6631 * ScrollPixelOffset::from(layout.position_map.line_height)
6632 - layout.position_map.scroll_pixel_position.y,
6633 );
6634 let bounds = Bounds::from_corners(
6635 point(layout.gutter_hitbox.left(), start_y),
6636 point(layout.gutter_hitbox.left() + highlight_width, end_y),
6637 );
6638 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
6639 }
6640 });
6641 }
6642
6643 fn paint_blamed_display_rows(
6644 &self,
6645 layout: &mut EditorLayout,
6646 window: &mut Window,
6647 cx: &mut App,
6648 ) {
6649 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
6650 return;
6651 };
6652
6653 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6654 for mut blame_element in blamed_display_rows.into_iter() {
6655 blame_element.paint(window, cx);
6656 }
6657 })
6658 }
6659
6660 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6661 window.with_content_mask(
6662 Some(ContentMask {
6663 bounds: layout.position_map.text_hitbox.bounds,
6664 }),
6665 |window| {
6666 let editor = self.editor.read(cx);
6667 if editor.mouse_cursor_hidden {
6668 window.set_window_cursor_style(CursorStyle::None);
6669 } else if let SelectionDragState::ReadyToDrag {
6670 mouse_down_time, ..
6671 } = &editor.selection_drag_state
6672 {
6673 let drag_and_drop_delay = Duration::from_millis(
6674 EditorSettings::get_global(cx)
6675 .drag_and_drop_selection
6676 .delay
6677 .0,
6678 );
6679 if mouse_down_time.elapsed() >= drag_and_drop_delay {
6680 window.set_cursor_style(
6681 CursorStyle::DragCopy,
6682 &layout.position_map.text_hitbox,
6683 );
6684 }
6685 } else if matches!(
6686 editor.selection_drag_state,
6687 SelectionDragState::Dragging { .. }
6688 ) {
6689 window
6690 .set_cursor_style(CursorStyle::DragCopy, &layout.position_map.text_hitbox);
6691 } else if editor
6692 .hovered_link_state
6693 .as_ref()
6694 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
6695 {
6696 window.set_cursor_style(
6697 CursorStyle::PointingHand,
6698 &layout.position_map.text_hitbox,
6699 );
6700 } else {
6701 window.set_cursor_style(CursorStyle::IBeam, &layout.position_map.text_hitbox);
6702 };
6703
6704 self.paint_lines_background(layout, window, cx);
6705 let invisible_display_ranges = self.paint_highlights(layout, window, cx);
6706 self.paint_document_colors(layout, window);
6707 self.paint_lines(&invisible_display_ranges, layout, window, cx);
6708 self.paint_redactions(layout, window);
6709 self.paint_cursors(layout, window, cx);
6710 self.paint_inline_diagnostics(layout, window, cx);
6711 self.paint_inline_blame(layout, window, cx);
6712 self.paint_inline_code_actions(layout, window, cx);
6713 self.paint_diff_hunk_controls(layout, window, cx);
6714 window.with_element_namespace("crease_trailers", |window| {
6715 for trailer in layout.crease_trailers.iter_mut().flatten() {
6716 trailer.element.paint(window, cx);
6717 }
6718 });
6719 },
6720 )
6721 }
6722
6723 fn paint_highlights(
6724 &mut self,
6725 layout: &mut EditorLayout,
6726 window: &mut Window,
6727 cx: &mut App,
6728 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
6729 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6730 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
6731 let line_end_overshoot = 0.15 * layout.position_map.line_height;
6732 for (range, color) in &layout.highlighted_ranges {
6733 self.paint_highlighted_range(
6734 range.clone(),
6735 true,
6736 *color,
6737 Pixels::ZERO,
6738 line_end_overshoot,
6739 layout,
6740 window,
6741 );
6742 }
6743
6744 let corner_radius = if EditorSettings::get_global(cx).rounded_selection {
6745 0.15 * layout.position_map.line_height
6746 } else {
6747 Pixels::ZERO
6748 };
6749
6750 for (player_color, selections) in &layout.selections {
6751 for selection in selections.iter() {
6752 self.paint_highlighted_range(
6753 selection.range.clone(),
6754 true,
6755 player_color.selection,
6756 corner_radius,
6757 corner_radius * 2.,
6758 layout,
6759 window,
6760 );
6761
6762 if selection.is_local && !selection.range.is_empty() {
6763 invisible_display_ranges.push(selection.range.clone());
6764 }
6765 }
6766 }
6767 invisible_display_ranges
6768 })
6769 }
6770
6771 fn paint_lines(
6772 &mut self,
6773 invisible_display_ranges: &[Range<DisplayPoint>],
6774 layout: &mut EditorLayout,
6775 window: &mut Window,
6776 cx: &mut App,
6777 ) {
6778 let whitespace_setting = self
6779 .editor
6780 .read(cx)
6781 .buffer
6782 .read(cx)
6783 .language_settings(cx)
6784 .show_whitespaces;
6785
6786 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6787 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6788 line_with_invisibles.draw(
6789 layout,
6790 row,
6791 layout.content_origin,
6792 whitespace_setting,
6793 invisible_display_ranges,
6794 window,
6795 cx,
6796 )
6797 }
6798
6799 for line_element in &mut layout.line_elements {
6800 line_element.paint(window, cx);
6801 }
6802 }
6803
6804 fn paint_sticky_headers(
6805 &mut self,
6806 layout: &mut EditorLayout,
6807 window: &mut Window,
6808 cx: &mut App,
6809 ) {
6810 let Some(mut sticky_headers) = layout.sticky_headers.take() else {
6811 return;
6812 };
6813
6814 if sticky_headers.lines.is_empty() {
6815 layout.sticky_headers = Some(sticky_headers);
6816 return;
6817 }
6818
6819 let whitespace_setting = self
6820 .editor
6821 .read(cx)
6822 .buffer
6823 .read(cx)
6824 .language_settings(cx)
6825 .show_whitespaces;
6826 sticky_headers.paint(layout, whitespace_setting, window, cx);
6827
6828 let sticky_header_hitboxes: Vec<Hitbox> = sticky_headers
6829 .lines
6830 .iter()
6831 .map(|line| line.hitbox.clone())
6832 .collect();
6833 let hovered_hitbox = sticky_header_hitboxes
6834 .iter()
6835 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6836
6837 window.on_mouse_event(move |_: &MouseMoveEvent, phase, window, _cx| {
6838 if !phase.bubble() {
6839 return;
6840 }
6841
6842 let current_hover = sticky_header_hitboxes
6843 .iter()
6844 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6845 if hovered_hitbox != current_hover {
6846 window.refresh();
6847 }
6848 });
6849
6850 for (line_index, line) in sticky_headers.lines.iter().enumerate() {
6851 let editor = self.editor.clone();
6852 let hitbox = line.hitbox.clone();
6853 let target_anchor = line.target_anchor;
6854 window.on_mouse_event(move |event: &MouseDownEvent, phase, window, cx| {
6855 if !phase.bubble() {
6856 return;
6857 }
6858
6859 if event.button == MouseButton::Left && hitbox.is_hovered(window) {
6860 editor.update(cx, |editor, cx| {
6861 editor.change_selections(
6862 SelectionEffects::scroll(Autoscroll::top_relative(line_index)),
6863 window,
6864 cx,
6865 |selections| selections.select_ranges([target_anchor..target_anchor]),
6866 );
6867 cx.stop_propagation();
6868 });
6869 }
6870 });
6871 }
6872
6873 let text_bounds = layout.position_map.text_hitbox.bounds;
6874 let border_top = text_bounds.top()
6875 + sticky_headers.lines.last().unwrap().offset
6876 + layout.position_map.line_height;
6877 let separator_height = px(1.);
6878 let border_bounds = Bounds::from_corners(
6879 point(layout.gutter_hitbox.bounds.left(), border_top),
6880 point(text_bounds.right(), border_top + separator_height),
6881 );
6882 window.paint_quad(fill(border_bounds, cx.theme().colors().border_variant));
6883
6884 layout.sticky_headers = Some(sticky_headers);
6885 }
6886
6887 fn paint_lines_background(
6888 &mut self,
6889 layout: &mut EditorLayout,
6890 window: &mut Window,
6891 cx: &mut App,
6892 ) {
6893 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6894 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6895 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
6896 }
6897 }
6898
6899 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
6900 if layout.redacted_ranges.is_empty() {
6901 return;
6902 }
6903
6904 let line_end_overshoot = layout.line_end_overshoot();
6905
6906 // A softer than perfect black
6907 let redaction_color = gpui::rgb(0x0e1111);
6908
6909 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6910 for range in layout.redacted_ranges.iter() {
6911 self.paint_highlighted_range(
6912 range.clone(),
6913 true,
6914 redaction_color.into(),
6915 Pixels::ZERO,
6916 line_end_overshoot,
6917 layout,
6918 window,
6919 );
6920 }
6921 });
6922 }
6923
6924 fn paint_document_colors(&self, layout: &mut EditorLayout, window: &mut Window) {
6925 let Some((colors_render_mode, image_colors)) = &layout.document_colors else {
6926 return;
6927 };
6928 if image_colors.is_empty()
6929 || colors_render_mode == &DocumentColorsRenderMode::None
6930 || colors_render_mode == &DocumentColorsRenderMode::Inlay
6931 {
6932 return;
6933 }
6934
6935 let line_end_overshoot = layout.line_end_overshoot();
6936
6937 for (range, color) in image_colors {
6938 match colors_render_mode {
6939 DocumentColorsRenderMode::Inlay | DocumentColorsRenderMode::None => return,
6940 DocumentColorsRenderMode::Background => {
6941 self.paint_highlighted_range(
6942 range.clone(),
6943 true,
6944 *color,
6945 Pixels::ZERO,
6946 line_end_overshoot,
6947 layout,
6948 window,
6949 );
6950 }
6951 DocumentColorsRenderMode::Border => {
6952 self.paint_highlighted_range(
6953 range.clone(),
6954 false,
6955 *color,
6956 Pixels::ZERO,
6957 line_end_overshoot,
6958 layout,
6959 window,
6960 );
6961 }
6962 }
6963 }
6964 }
6965
6966 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6967 for cursor in &mut layout.visible_cursors {
6968 cursor.paint(layout.content_origin, window, cx);
6969 }
6970 }
6971
6972 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6973 let Some(scrollbars_layout) = layout.scrollbars_layout.take() else {
6974 return;
6975 };
6976 let any_scrollbar_dragged = self.editor.read(cx).scroll_manager.any_scrollbar_dragged();
6977
6978 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
6979 let hitbox = &scrollbar_layout.hitbox;
6980 if scrollbars_layout.visible {
6981 let scrollbar_edges = match axis {
6982 ScrollbarAxis::Horizontal => Edges {
6983 top: Pixels::ZERO,
6984 right: Pixels::ZERO,
6985 bottom: Pixels::ZERO,
6986 left: Pixels::ZERO,
6987 },
6988 ScrollbarAxis::Vertical => Edges {
6989 top: Pixels::ZERO,
6990 right: Pixels::ZERO,
6991 bottom: Pixels::ZERO,
6992 left: ScrollbarLayout::BORDER_WIDTH,
6993 },
6994 };
6995
6996 window.paint_layer(hitbox.bounds, |window| {
6997 window.paint_quad(quad(
6998 hitbox.bounds,
6999 Corners::default(),
7000 cx.theme().colors().scrollbar_track_background,
7001 scrollbar_edges,
7002 cx.theme().colors().scrollbar_track_border,
7003 BorderStyle::Solid,
7004 ));
7005
7006 if axis == ScrollbarAxis::Vertical {
7007 let fast_markers =
7008 self.collect_fast_scrollbar_markers(layout, scrollbar_layout, cx);
7009 // Refresh slow scrollbar markers in the background. Below, we
7010 // paint whatever markers have already been computed.
7011 self.refresh_slow_scrollbar_markers(layout, scrollbar_layout, window, cx);
7012
7013 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
7014 for marker in markers.iter().chain(&fast_markers) {
7015 let mut marker = marker.clone();
7016 marker.bounds.origin += hitbox.origin;
7017 window.paint_quad(marker);
7018 }
7019 }
7020
7021 if let Some(thumb_bounds) = scrollbar_layout.thumb_bounds {
7022 let scrollbar_thumb_color = match scrollbar_layout.thumb_state {
7023 ScrollbarThumbState::Dragging => {
7024 cx.theme().colors().scrollbar_thumb_active_background
7025 }
7026 ScrollbarThumbState::Hovered => {
7027 cx.theme().colors().scrollbar_thumb_hover_background
7028 }
7029 ScrollbarThumbState::Idle => {
7030 cx.theme().colors().scrollbar_thumb_background
7031 }
7032 };
7033 window.paint_quad(quad(
7034 thumb_bounds,
7035 Corners::default(),
7036 scrollbar_thumb_color,
7037 scrollbar_edges,
7038 cx.theme().colors().scrollbar_thumb_border,
7039 BorderStyle::Solid,
7040 ));
7041
7042 if any_scrollbar_dragged {
7043 window.set_window_cursor_style(CursorStyle::Arrow);
7044 } else {
7045 window.set_cursor_style(CursorStyle::Arrow, hitbox);
7046 }
7047 }
7048 })
7049 }
7050 }
7051
7052 window.on_mouse_event({
7053 let editor = self.editor.clone();
7054 let scrollbars_layout = scrollbars_layout.clone();
7055
7056 let mut mouse_position = window.mouse_position();
7057 move |event: &MouseMoveEvent, phase, window, cx| {
7058 if phase == DispatchPhase::Capture {
7059 return;
7060 }
7061
7062 editor.update(cx, |editor, cx| {
7063 if let Some((scrollbar_layout, axis)) = event
7064 .pressed_button
7065 .filter(|button| *button == MouseButton::Left)
7066 .and(editor.scroll_manager.dragging_scrollbar_axis())
7067 .and_then(|axis| {
7068 scrollbars_layout
7069 .iter_scrollbars()
7070 .find(|(_, a)| *a == axis)
7071 })
7072 {
7073 let ScrollbarLayout {
7074 hitbox,
7075 text_unit_size,
7076 ..
7077 } = scrollbar_layout;
7078
7079 let old_position = mouse_position.along(axis);
7080 let new_position = event.position.along(axis);
7081 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
7082 .contains(&old_position)
7083 {
7084 let position = editor.scroll_position(cx).apply_along(axis, |p| {
7085 (p + ScrollOffset::from(
7086 (new_position - old_position) / *text_unit_size,
7087 ))
7088 .max(0.)
7089 });
7090 editor.set_scroll_position(position, window, cx);
7091 }
7092
7093 editor.scroll_manager.show_scrollbars(window, cx);
7094 cx.stop_propagation();
7095 } else if let Some((layout, axis)) = scrollbars_layout
7096 .get_hovered_axis(window)
7097 .filter(|_| !event.dragging())
7098 {
7099 if layout.thumb_hovered(&event.position) {
7100 editor
7101 .scroll_manager
7102 .set_hovered_scroll_thumb_axis(axis, cx);
7103 } else {
7104 editor.scroll_manager.reset_scrollbar_state(cx);
7105 }
7106
7107 editor.scroll_manager.show_scrollbars(window, cx);
7108 } else {
7109 editor.scroll_manager.reset_scrollbar_state(cx);
7110 }
7111
7112 mouse_position = event.position;
7113 })
7114 }
7115 });
7116
7117 if any_scrollbar_dragged {
7118 window.on_mouse_event({
7119 let editor = self.editor.clone();
7120 move |_: &MouseUpEvent, phase, window, cx| {
7121 if phase == DispatchPhase::Capture {
7122 return;
7123 }
7124
7125 editor.update(cx, |editor, cx| {
7126 if let Some((_, axis)) = scrollbars_layout.get_hovered_axis(window) {
7127 editor
7128 .scroll_manager
7129 .set_hovered_scroll_thumb_axis(axis, cx);
7130 } else {
7131 editor.scroll_manager.reset_scrollbar_state(cx);
7132 }
7133 cx.stop_propagation();
7134 });
7135 }
7136 });
7137 } else {
7138 window.on_mouse_event({
7139 let editor = self.editor.clone();
7140
7141 move |event: &MouseDownEvent, phase, window, cx| {
7142 if phase == DispatchPhase::Capture {
7143 return;
7144 }
7145 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
7146 else {
7147 return;
7148 };
7149
7150 let ScrollbarLayout {
7151 hitbox,
7152 visible_range,
7153 text_unit_size,
7154 thumb_bounds,
7155 ..
7156 } = scrollbar_layout;
7157
7158 let Some(thumb_bounds) = thumb_bounds else {
7159 return;
7160 };
7161
7162 editor.update(cx, |editor, cx| {
7163 editor
7164 .scroll_manager
7165 .set_dragged_scroll_thumb_axis(axis, cx);
7166
7167 let event_position = event.position.along(axis);
7168
7169 if event_position < thumb_bounds.origin.along(axis)
7170 || thumb_bounds.bottom_right().along(axis) < event_position
7171 {
7172 let center_position = ((event_position - hitbox.origin.along(axis))
7173 / *text_unit_size)
7174 .round() as u32;
7175 let start_position = center_position.saturating_sub(
7176 (visible_range.end - visible_range.start) as u32 / 2,
7177 );
7178
7179 let position = editor
7180 .scroll_position(cx)
7181 .apply_along(axis, |_| start_position as ScrollOffset);
7182
7183 editor.set_scroll_position(position, window, cx);
7184 } else {
7185 editor.scroll_manager.show_scrollbars(window, cx);
7186 }
7187
7188 cx.stop_propagation();
7189 });
7190 }
7191 });
7192 }
7193 }
7194
7195 fn collect_fast_scrollbar_markers(
7196 &self,
7197 layout: &EditorLayout,
7198 scrollbar_layout: &ScrollbarLayout,
7199 cx: &mut App,
7200 ) -> Vec<PaintQuad> {
7201 const LIMIT: usize = 100;
7202 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
7203 return vec![];
7204 }
7205 let cursor_ranges = layout
7206 .cursors
7207 .iter()
7208 .map(|(point, color)| ColoredRange {
7209 start: point.row(),
7210 end: point.row(),
7211 color: *color,
7212 })
7213 .collect_vec();
7214 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
7215 }
7216
7217 fn refresh_slow_scrollbar_markers(
7218 &self,
7219 layout: &EditorLayout,
7220 scrollbar_layout: &ScrollbarLayout,
7221 window: &mut Window,
7222 cx: &mut App,
7223 ) {
7224 self.editor.update(cx, |editor, cx| {
7225 if editor.buffer_kind(cx) != ItemBufferKind::Singleton
7226 || !editor
7227 .scrollbar_marker_state
7228 .should_refresh(scrollbar_layout.hitbox.size)
7229 {
7230 return;
7231 }
7232
7233 let scrollbar_layout = scrollbar_layout.clone();
7234 let background_highlights = editor.background_highlights.clone();
7235 let snapshot = layout.position_map.snapshot.clone();
7236 let theme = cx.theme().clone();
7237 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
7238
7239 editor.scrollbar_marker_state.dirty = false;
7240 editor.scrollbar_marker_state.pending_refresh =
7241 Some(cx.spawn_in(window, async move |editor, cx| {
7242 let scrollbar_size = scrollbar_layout.hitbox.size;
7243 let scrollbar_markers = cx
7244 .background_spawn(async move {
7245 let max_point = snapshot.display_snapshot.buffer_snapshot().max_point();
7246 let mut marker_quads = Vec::new();
7247 if scrollbar_settings.git_diff {
7248 let marker_row_ranges =
7249 snapshot.buffer_snapshot().diff_hunks().map(|hunk| {
7250 let start_display_row =
7251 MultiBufferPoint::new(hunk.row_range.start.0, 0)
7252 .to_display_point(&snapshot.display_snapshot)
7253 .row();
7254 let mut end_display_row =
7255 MultiBufferPoint::new(hunk.row_range.end.0, 0)
7256 .to_display_point(&snapshot.display_snapshot)
7257 .row();
7258 if end_display_row != start_display_row {
7259 end_display_row.0 -= 1;
7260 }
7261 let color = match &hunk.status().kind {
7262 DiffHunkStatusKind::Added => {
7263 theme.colors().version_control_added
7264 }
7265 DiffHunkStatusKind::Modified => {
7266 theme.colors().version_control_modified
7267 }
7268 DiffHunkStatusKind::Deleted => {
7269 theme.colors().version_control_deleted
7270 }
7271 };
7272 ColoredRange {
7273 start: start_display_row,
7274 end: end_display_row,
7275 color,
7276 }
7277 });
7278
7279 marker_quads.extend(
7280 scrollbar_layout
7281 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
7282 );
7283 }
7284
7285 for (background_highlight_id, (_, background_ranges)) in
7286 background_highlights.iter()
7287 {
7288 let is_search_highlights = *background_highlight_id
7289 == HighlightKey::Type(TypeId::of::<BufferSearchHighlights>());
7290 let is_text_highlights = *background_highlight_id
7291 == HighlightKey::Type(TypeId::of::<SelectedTextHighlight>());
7292 let is_symbol_occurrences = *background_highlight_id
7293 == HighlightKey::Type(TypeId::of::<DocumentHighlightRead>())
7294 || *background_highlight_id
7295 == HighlightKey::Type(
7296 TypeId::of::<DocumentHighlightWrite>(),
7297 );
7298 if (is_search_highlights && scrollbar_settings.search_results)
7299 || (is_text_highlights && scrollbar_settings.selected_text)
7300 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
7301 {
7302 let mut color = theme.status().info;
7303 if is_symbol_occurrences {
7304 color.fade_out(0.5);
7305 }
7306 let marker_row_ranges = background_ranges.iter().map(|range| {
7307 let display_start = range
7308 .start
7309 .to_display_point(&snapshot.display_snapshot);
7310 let display_end =
7311 range.end.to_display_point(&snapshot.display_snapshot);
7312 ColoredRange {
7313 start: display_start.row(),
7314 end: display_end.row(),
7315 color,
7316 }
7317 });
7318 marker_quads.extend(
7319 scrollbar_layout
7320 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
7321 );
7322 }
7323 }
7324
7325 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
7326 let diagnostics = snapshot
7327 .buffer_snapshot()
7328 .diagnostics_in_range::<Point>(Point::zero()..max_point)
7329 // Don't show diagnostics the user doesn't care about
7330 .filter(|diagnostic| {
7331 match (
7332 scrollbar_settings.diagnostics,
7333 diagnostic.diagnostic.severity,
7334 ) {
7335 (ScrollbarDiagnostics::All, _) => true,
7336 (
7337 ScrollbarDiagnostics::Error,
7338 lsp::DiagnosticSeverity::ERROR,
7339 ) => true,
7340 (
7341 ScrollbarDiagnostics::Warning,
7342 lsp::DiagnosticSeverity::ERROR
7343 | lsp::DiagnosticSeverity::WARNING,
7344 ) => true,
7345 (
7346 ScrollbarDiagnostics::Information,
7347 lsp::DiagnosticSeverity::ERROR
7348 | lsp::DiagnosticSeverity::WARNING
7349 | lsp::DiagnosticSeverity::INFORMATION,
7350 ) => true,
7351 (_, _) => false,
7352 }
7353 })
7354 // We want to sort by severity, in order to paint the most severe diagnostics last.
7355 .sorted_by_key(|diagnostic| {
7356 std::cmp::Reverse(diagnostic.diagnostic.severity)
7357 });
7358
7359 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
7360 let start_display = diagnostic
7361 .range
7362 .start
7363 .to_display_point(&snapshot.display_snapshot);
7364 let end_display = diagnostic
7365 .range
7366 .end
7367 .to_display_point(&snapshot.display_snapshot);
7368 let color = match diagnostic.diagnostic.severity {
7369 lsp::DiagnosticSeverity::ERROR => theme.status().error,
7370 lsp::DiagnosticSeverity::WARNING => theme.status().warning,
7371 lsp::DiagnosticSeverity::INFORMATION => theme.status().info,
7372 _ => theme.status().hint,
7373 };
7374 ColoredRange {
7375 start: start_display.row(),
7376 end: end_display.row(),
7377 color,
7378 }
7379 });
7380 marker_quads.extend(
7381 scrollbar_layout
7382 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
7383 );
7384 }
7385
7386 Arc::from(marker_quads)
7387 })
7388 .await;
7389
7390 editor.update(cx, |editor, cx| {
7391 editor.scrollbar_marker_state.markers = scrollbar_markers;
7392 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
7393 editor.scrollbar_marker_state.pending_refresh = None;
7394 cx.notify();
7395 })?;
7396
7397 Ok(())
7398 }));
7399 });
7400 }
7401
7402 fn paint_highlighted_range(
7403 &self,
7404 range: Range<DisplayPoint>,
7405 fill: bool,
7406 color: Hsla,
7407 corner_radius: Pixels,
7408 line_end_overshoot: Pixels,
7409 layout: &EditorLayout,
7410 window: &mut Window,
7411 ) {
7412 let start_row = layout.visible_display_row_range.start;
7413 let end_row = layout.visible_display_row_range.end;
7414 if range.start != range.end {
7415 let row_range = if range.end.column() == 0 {
7416 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
7417 } else {
7418 cmp::max(range.start.row(), start_row)
7419 ..cmp::min(range.end.row().next_row(), end_row)
7420 };
7421
7422 let highlighted_range = HighlightedRange {
7423 color,
7424 line_height: layout.position_map.line_height,
7425 corner_radius,
7426 start_y: layout.content_origin.y
7427 + Pixels::from(
7428 (row_range.start.as_f64() - layout.position_map.scroll_position.y)
7429 * ScrollOffset::from(layout.position_map.line_height),
7430 ),
7431 lines: row_range
7432 .iter_rows()
7433 .map(|row| {
7434 let line_layout =
7435 &layout.position_map.line_layouts[row.minus(start_row) as usize];
7436 HighlightedRangeLine {
7437 start_x: if row == range.start.row() {
7438 layout.content_origin.x
7439 + Pixels::from(
7440 ScrollPixelOffset::from(
7441 line_layout.x_for_index(range.start.column() as usize),
7442 ) - layout.position_map.scroll_pixel_position.x,
7443 )
7444 } else {
7445 layout.content_origin.x
7446 - Pixels::from(layout.position_map.scroll_pixel_position.x)
7447 },
7448 end_x: if row == range.end.row() {
7449 layout.content_origin.x
7450 + Pixels::from(
7451 ScrollPixelOffset::from(
7452 line_layout.x_for_index(range.end.column() as usize),
7453 ) - layout.position_map.scroll_pixel_position.x,
7454 )
7455 } else {
7456 Pixels::from(
7457 ScrollPixelOffset::from(
7458 layout.content_origin.x
7459 + line_layout.width
7460 + line_end_overshoot,
7461 ) - layout.position_map.scroll_pixel_position.x,
7462 )
7463 },
7464 }
7465 })
7466 .collect(),
7467 };
7468
7469 highlighted_range.paint(fill, layout.position_map.text_hitbox.bounds, window);
7470 }
7471 }
7472
7473 fn paint_inline_diagnostics(
7474 &mut self,
7475 layout: &mut EditorLayout,
7476 window: &mut Window,
7477 cx: &mut App,
7478 ) {
7479 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
7480 inline_diagnostic.1.paint(window, cx);
7481 }
7482 }
7483
7484 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7485 if let Some(mut blame_layout) = layout.inline_blame_layout.take() {
7486 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7487 blame_layout.element.paint(window, cx);
7488 })
7489 }
7490 }
7491
7492 fn paint_inline_code_actions(
7493 &mut self,
7494 layout: &mut EditorLayout,
7495 window: &mut Window,
7496 cx: &mut App,
7497 ) {
7498 if let Some(mut inline_code_actions) = layout.inline_code_actions.take() {
7499 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7500 inline_code_actions.paint(window, cx);
7501 })
7502 }
7503 }
7504
7505 fn paint_diff_hunk_controls(
7506 &mut self,
7507 layout: &mut EditorLayout,
7508 window: &mut Window,
7509 cx: &mut App,
7510 ) {
7511 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
7512 diff_hunk_control.paint(window, cx);
7513 }
7514 }
7515
7516 fn paint_minimap(&self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7517 if let Some(mut layout) = layout.minimap.take() {
7518 let minimap_hitbox = layout.thumb_layout.hitbox.clone();
7519 let dragging_minimap = self.editor.read(cx).scroll_manager.is_dragging_minimap();
7520
7521 window.paint_layer(layout.thumb_layout.hitbox.bounds, |window| {
7522 window.with_element_namespace("minimap", |window| {
7523 layout.minimap.paint(window, cx);
7524 if let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds {
7525 let minimap_thumb_color = match layout.thumb_layout.thumb_state {
7526 ScrollbarThumbState::Idle => {
7527 cx.theme().colors().minimap_thumb_background
7528 }
7529 ScrollbarThumbState::Hovered => {
7530 cx.theme().colors().minimap_thumb_hover_background
7531 }
7532 ScrollbarThumbState::Dragging => {
7533 cx.theme().colors().minimap_thumb_active_background
7534 }
7535 };
7536 let minimap_thumb_border = match layout.thumb_border_style {
7537 MinimapThumbBorder::Full => Edges::all(ScrollbarLayout::BORDER_WIDTH),
7538 MinimapThumbBorder::LeftOnly => Edges {
7539 left: ScrollbarLayout::BORDER_WIDTH,
7540 ..Default::default()
7541 },
7542 MinimapThumbBorder::LeftOpen => Edges {
7543 right: ScrollbarLayout::BORDER_WIDTH,
7544 top: ScrollbarLayout::BORDER_WIDTH,
7545 bottom: ScrollbarLayout::BORDER_WIDTH,
7546 ..Default::default()
7547 },
7548 MinimapThumbBorder::RightOpen => Edges {
7549 left: ScrollbarLayout::BORDER_WIDTH,
7550 top: ScrollbarLayout::BORDER_WIDTH,
7551 bottom: ScrollbarLayout::BORDER_WIDTH,
7552 ..Default::default()
7553 },
7554 MinimapThumbBorder::None => Default::default(),
7555 };
7556
7557 window.paint_layer(minimap_hitbox.bounds, |window| {
7558 window.paint_quad(quad(
7559 thumb_bounds,
7560 Corners::default(),
7561 minimap_thumb_color,
7562 minimap_thumb_border,
7563 cx.theme().colors().minimap_thumb_border,
7564 BorderStyle::Solid,
7565 ));
7566 });
7567 }
7568 });
7569 });
7570
7571 if dragging_minimap {
7572 window.set_window_cursor_style(CursorStyle::Arrow);
7573 } else {
7574 window.set_cursor_style(CursorStyle::Arrow, &minimap_hitbox);
7575 }
7576
7577 let minimap_axis = ScrollbarAxis::Vertical;
7578 let pixels_per_line = Pixels::from(
7579 ScrollPixelOffset::from(minimap_hitbox.size.height) / layout.max_scroll_top,
7580 )
7581 .min(layout.minimap_line_height);
7582
7583 let mut mouse_position = window.mouse_position();
7584
7585 window.on_mouse_event({
7586 let editor = self.editor.clone();
7587
7588 let minimap_hitbox = minimap_hitbox.clone();
7589
7590 move |event: &MouseMoveEvent, phase, window, cx| {
7591 if phase == DispatchPhase::Capture {
7592 return;
7593 }
7594
7595 editor.update(cx, |editor, cx| {
7596 if event.pressed_button == Some(MouseButton::Left)
7597 && editor.scroll_manager.is_dragging_minimap()
7598 {
7599 let old_position = mouse_position.along(minimap_axis);
7600 let new_position = event.position.along(minimap_axis);
7601 if (minimap_hitbox.origin.along(minimap_axis)
7602 ..minimap_hitbox.bottom_right().along(minimap_axis))
7603 .contains(&old_position)
7604 {
7605 let position =
7606 editor.scroll_position(cx).apply_along(minimap_axis, |p| {
7607 (p + ScrollPixelOffset::from(
7608 (new_position - old_position) / pixels_per_line,
7609 ))
7610 .max(0.)
7611 });
7612
7613 editor.set_scroll_position(position, window, cx);
7614 }
7615 cx.stop_propagation();
7616 } else if minimap_hitbox.is_hovered(window) {
7617 editor.scroll_manager.set_is_hovering_minimap_thumb(
7618 !event.dragging()
7619 && layout
7620 .thumb_layout
7621 .thumb_bounds
7622 .is_some_and(|bounds| bounds.contains(&event.position)),
7623 cx,
7624 );
7625
7626 // Stop hover events from propagating to the
7627 // underlying editor if the minimap hitbox is hovered
7628 if !event.dragging() {
7629 cx.stop_propagation();
7630 }
7631 } else {
7632 editor.scroll_manager.hide_minimap_thumb(cx);
7633 }
7634 mouse_position = event.position;
7635 });
7636 }
7637 });
7638
7639 if dragging_minimap {
7640 window.on_mouse_event({
7641 let editor = self.editor.clone();
7642 move |event: &MouseUpEvent, phase, window, cx| {
7643 if phase == DispatchPhase::Capture {
7644 return;
7645 }
7646
7647 editor.update(cx, |editor, cx| {
7648 if minimap_hitbox.is_hovered(window) {
7649 editor.scroll_manager.set_is_hovering_minimap_thumb(
7650 layout
7651 .thumb_layout
7652 .thumb_bounds
7653 .is_some_and(|bounds| bounds.contains(&event.position)),
7654 cx,
7655 );
7656 } else {
7657 editor.scroll_manager.hide_minimap_thumb(cx);
7658 }
7659 cx.stop_propagation();
7660 });
7661 }
7662 });
7663 } else {
7664 window.on_mouse_event({
7665 let editor = self.editor.clone();
7666
7667 move |event: &MouseDownEvent, phase, window, cx| {
7668 if phase == DispatchPhase::Capture || !minimap_hitbox.is_hovered(window) {
7669 return;
7670 }
7671
7672 let event_position = event.position;
7673
7674 let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds else {
7675 return;
7676 };
7677
7678 editor.update(cx, |editor, cx| {
7679 if !thumb_bounds.contains(&event_position) {
7680 let click_position =
7681 event_position.relative_to(&minimap_hitbox.origin).y;
7682
7683 let top_position = (click_position
7684 - thumb_bounds.size.along(minimap_axis) / 2.0)
7685 .max(Pixels::ZERO);
7686
7687 let scroll_offset = (layout.minimap_scroll_top
7688 + ScrollPixelOffset::from(
7689 top_position / layout.minimap_line_height,
7690 ))
7691 .min(layout.max_scroll_top);
7692
7693 let scroll_position = editor
7694 .scroll_position(cx)
7695 .apply_along(minimap_axis, |_| scroll_offset);
7696 editor.set_scroll_position(scroll_position, window, cx);
7697 }
7698
7699 editor.scroll_manager.set_is_dragging_minimap(cx);
7700 cx.stop_propagation();
7701 });
7702 }
7703 });
7704 }
7705 }
7706 }
7707
7708 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7709 for mut block in layout.blocks.drain(..) {
7710 if block.overlaps_gutter {
7711 block.element.paint(window, cx);
7712 } else {
7713 let mut bounds = layout.hitbox.bounds;
7714 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
7715 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7716 block.element.paint(window, cx);
7717 })
7718 }
7719 }
7720 }
7721
7722 fn paint_edit_prediction_popover(
7723 &mut self,
7724 layout: &mut EditorLayout,
7725 window: &mut Window,
7726 cx: &mut App,
7727 ) {
7728 if let Some(edit_prediction_popover) = layout.edit_prediction_popover.as_mut() {
7729 edit_prediction_popover.paint(window, cx);
7730 }
7731 }
7732
7733 fn paint_mouse_context_menu(
7734 &mut self,
7735 layout: &mut EditorLayout,
7736 window: &mut Window,
7737 cx: &mut App,
7738 ) {
7739 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
7740 mouse_context_menu.paint(window, cx);
7741 }
7742 }
7743
7744 fn paint_scroll_wheel_listener(
7745 &mut self,
7746 layout: &EditorLayout,
7747 window: &mut Window,
7748 cx: &mut App,
7749 ) {
7750 window.on_mouse_event({
7751 let position_map = layout.position_map.clone();
7752 let editor = self.editor.clone();
7753 let hitbox = layout.hitbox.clone();
7754 let mut delta = ScrollDelta::default();
7755
7756 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
7757 // accidentally turn off their scrolling.
7758 let base_scroll_sensitivity =
7759 EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
7760
7761 // Use a minimum fast_scroll_sensitivity for same reason above
7762 let fast_scroll_sensitivity = EditorSettings::get_global(cx)
7763 .fast_scroll_sensitivity
7764 .max(0.01);
7765
7766 move |event: &ScrollWheelEvent, phase, window, cx| {
7767 let scroll_sensitivity = {
7768 if event.modifiers.alt {
7769 fast_scroll_sensitivity
7770 } else {
7771 base_scroll_sensitivity
7772 }
7773 };
7774
7775 if phase == DispatchPhase::Bubble && hitbox.should_handle_scroll(window) {
7776 delta = delta.coalesce(event.delta);
7777 editor.update(cx, |editor, cx| {
7778 let position_map: &PositionMap = &position_map;
7779
7780 let line_height = position_map.line_height;
7781 let max_glyph_advance = position_map.em_advance;
7782 let (delta, axis) = match delta {
7783 gpui::ScrollDelta::Pixels(mut pixels) => {
7784 //Trackpad
7785 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
7786 (pixels, axis)
7787 }
7788
7789 gpui::ScrollDelta::Lines(lines) => {
7790 //Not trackpad
7791 let pixels =
7792 point(lines.x * max_glyph_advance, lines.y * line_height);
7793 (pixels, None)
7794 }
7795 };
7796
7797 let current_scroll_position = position_map.snapshot.scroll_position();
7798 let x = (current_scroll_position.x
7799 * ScrollPixelOffset::from(max_glyph_advance)
7800 - ScrollPixelOffset::from(delta.x * scroll_sensitivity))
7801 / ScrollPixelOffset::from(max_glyph_advance);
7802 let y = (current_scroll_position.y * ScrollPixelOffset::from(line_height)
7803 - ScrollPixelOffset::from(delta.y * scroll_sensitivity))
7804 / ScrollPixelOffset::from(line_height);
7805 let mut scroll_position =
7806 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
7807 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
7808 if forbid_vertical_scroll {
7809 scroll_position.y = current_scroll_position.y;
7810 }
7811
7812 if scroll_position != current_scroll_position {
7813 editor.scroll(scroll_position, axis, window, cx);
7814 cx.stop_propagation();
7815 } else if y < 0. {
7816 // Due to clamping, we may fail to detect cases of overscroll to the top;
7817 // We want the scroll manager to get an update in such cases and detect the change of direction
7818 // on the next frame.
7819 cx.notify();
7820 }
7821 });
7822 }
7823 }
7824 });
7825 }
7826
7827 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
7828 if layout.mode.is_minimap() {
7829 return;
7830 }
7831
7832 self.paint_scroll_wheel_listener(layout, window, cx);
7833
7834 window.on_mouse_event({
7835 let position_map = layout.position_map.clone();
7836 let editor = self.editor.clone();
7837 let line_numbers = layout.line_numbers.clone();
7838
7839 move |event: &MouseDownEvent, phase, window, cx| {
7840 if phase == DispatchPhase::Bubble {
7841 match event.button {
7842 MouseButton::Left => editor.update(cx, |editor, cx| {
7843 let pending_mouse_down = editor
7844 .pending_mouse_down
7845 .get_or_insert_with(Default::default)
7846 .clone();
7847
7848 *pending_mouse_down.borrow_mut() = Some(event.clone());
7849
7850 Self::mouse_left_down(
7851 editor,
7852 event,
7853 &position_map,
7854 line_numbers.as_ref(),
7855 window,
7856 cx,
7857 );
7858 }),
7859 MouseButton::Right => editor.update(cx, |editor, cx| {
7860 Self::mouse_right_down(editor, event, &position_map, window, cx);
7861 }),
7862 MouseButton::Middle => editor.update(cx, |editor, cx| {
7863 Self::mouse_middle_down(editor, event, &position_map, window, cx);
7864 }),
7865 _ => {}
7866 };
7867 }
7868 }
7869 });
7870
7871 window.on_mouse_event({
7872 let editor = self.editor.clone();
7873 let position_map = layout.position_map.clone();
7874
7875 move |event: &MouseUpEvent, phase, window, cx| {
7876 if phase == DispatchPhase::Bubble {
7877 editor.update(cx, |editor, cx| {
7878 Self::mouse_up(editor, event, &position_map, window, cx)
7879 });
7880 }
7881 }
7882 });
7883
7884 window.on_mouse_event({
7885 let editor = self.editor.clone();
7886 let position_map = layout.position_map.clone();
7887 let mut captured_mouse_down = None;
7888
7889 move |event: &MouseUpEvent, phase, window, cx| match phase {
7890 // Clear the pending mouse down during the capture phase,
7891 // so that it happens even if another event handler stops
7892 // propagation.
7893 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
7894 let pending_mouse_down = editor
7895 .pending_mouse_down
7896 .get_or_insert_with(Default::default)
7897 .clone();
7898
7899 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
7900 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
7901 captured_mouse_down = pending_mouse_down.take();
7902 window.refresh();
7903 }
7904 }),
7905 // Fire click handlers during the bubble phase.
7906 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
7907 if let Some(mouse_down) = captured_mouse_down.take() {
7908 let event = ClickEvent::Mouse(MouseClickEvent {
7909 down: mouse_down,
7910 up: event.clone(),
7911 });
7912 Self::click(editor, &event, &position_map, window, cx);
7913 }
7914 }),
7915 }
7916 });
7917
7918 window.on_mouse_event({
7919 let position_map = layout.position_map.clone();
7920 let editor = self.editor.clone();
7921
7922 move |event: &MousePressureEvent, phase, window, cx| {
7923 if phase == DispatchPhase::Bubble {
7924 editor.update(cx, |editor, cx| {
7925 Self::pressure_click(editor, &event, &position_map, window, cx);
7926 })
7927 }
7928 }
7929 });
7930
7931 window.on_mouse_event({
7932 let position_map = layout.position_map.clone();
7933 let editor = self.editor.clone();
7934
7935 move |event: &MouseMoveEvent, phase, window, cx| {
7936 if phase == DispatchPhase::Bubble {
7937 editor.update(cx, |editor, cx| {
7938 if editor.hover_state.focused(window, cx) {
7939 return;
7940 }
7941 if event.pressed_button == Some(MouseButton::Left)
7942 || event.pressed_button == Some(MouseButton::Middle)
7943 {
7944 Self::mouse_dragged(editor, event, &position_map, window, cx)
7945 }
7946
7947 Self::mouse_moved(editor, event, &position_map, window, cx)
7948 });
7949 }
7950 }
7951 });
7952 }
7953
7954 fn shape_line_number(
7955 &self,
7956 text: SharedString,
7957 color: Hsla,
7958 window: &mut Window,
7959 ) -> ShapedLine {
7960 let run = TextRun {
7961 len: text.len(),
7962 font: self.style.text.font(),
7963 color,
7964 ..Default::default()
7965 };
7966 window.text_system().shape_line(
7967 text,
7968 self.style.text.font_size.to_pixels(window.rem_size()),
7969 &[run],
7970 None,
7971 )
7972 }
7973
7974 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
7975 let unstaged = status.has_secondary_hunk();
7976 let unstaged_hollow = matches!(
7977 ProjectSettings::get_global(cx).git.hunk_style,
7978 GitHunkStyleSetting::UnstagedHollow
7979 );
7980
7981 unstaged == unstaged_hollow
7982 }
7983
7984 #[cfg(debug_assertions)]
7985 fn layout_debug_ranges(
7986 selections: &mut Vec<(PlayerColor, Vec<SelectionLayout>)>,
7987 anchor_range: Range<Anchor>,
7988 display_snapshot: &DisplaySnapshot,
7989 cx: &App,
7990 ) {
7991 let theme = cx.theme();
7992 text::debug::GlobalDebugRanges::with_locked(|debug_ranges| {
7993 if debug_ranges.ranges.is_empty() {
7994 return;
7995 }
7996 let buffer_snapshot = &display_snapshot.buffer_snapshot();
7997 for (buffer, buffer_range, excerpt_id) in
7998 buffer_snapshot.range_to_buffer_ranges(anchor_range)
7999 {
8000 let buffer_range =
8001 buffer.anchor_after(buffer_range.start)..buffer.anchor_before(buffer_range.end);
8002 selections.extend(debug_ranges.ranges.iter().flat_map(|debug_range| {
8003 let player_color = theme
8004 .players()
8005 .color_for_participant(debug_range.occurrence_index as u32 + 1);
8006 debug_range.ranges.iter().filter_map(move |range| {
8007 if range.start.buffer_id != Some(buffer.remote_id()) {
8008 return None;
8009 }
8010 let clipped_start = range.start.max(&buffer_range.start, buffer);
8011 let clipped_end = range.end.min(&buffer_range.end, buffer);
8012 let range = buffer_snapshot
8013 .anchor_range_in_excerpt(excerpt_id, *clipped_start..*clipped_end)?;
8014 let start = range.start.to_display_point(display_snapshot);
8015 let end = range.end.to_display_point(display_snapshot);
8016 let selection_layout = SelectionLayout {
8017 head: start,
8018 range: start..end,
8019 cursor_shape: CursorShape::Bar,
8020 is_newest: false,
8021 is_local: false,
8022 active_rows: start.row()..end.row(),
8023 user_name: Some(SharedString::new(debug_range.value.clone())),
8024 };
8025 Some((player_color, vec![selection_layout]))
8026 })
8027 }));
8028 }
8029 });
8030 }
8031}
8032
8033fn file_status_label_color(file_status: Option<FileStatus>) -> Color {
8034 file_status.map_or(Color::Default, |status| {
8035 if status.is_conflicted() {
8036 Color::Conflict
8037 } else if status.is_modified() {
8038 Color::Modified
8039 } else if status.is_deleted() {
8040 Color::Disabled
8041 } else if status.is_created() {
8042 Color::Created
8043 } else {
8044 Color::Default
8045 }
8046 })
8047}
8048
8049fn header_jump_data(
8050 editor_snapshot: &EditorSnapshot,
8051 block_row_start: DisplayRow,
8052 height: u32,
8053 first_excerpt: &ExcerptInfo,
8054 latest_selection_anchors: &HashMap<BufferId, Anchor>,
8055) -> JumpData {
8056 let jump_target = if let Some(anchor) = latest_selection_anchors.get(&first_excerpt.buffer_id)
8057 && let Some(range) = editor_snapshot.context_range_for_excerpt(anchor.excerpt_id)
8058 && let Some(buffer) = editor_snapshot
8059 .buffer_snapshot()
8060 .buffer_for_excerpt(anchor.excerpt_id)
8061 {
8062 JumpTargetInExcerptInput {
8063 id: anchor.excerpt_id,
8064 buffer,
8065 excerpt_start_anchor: range.start,
8066 jump_anchor: anchor.text_anchor,
8067 }
8068 } else {
8069 JumpTargetInExcerptInput {
8070 id: first_excerpt.id,
8071 buffer: &first_excerpt.buffer,
8072 excerpt_start_anchor: first_excerpt.range.context.start,
8073 jump_anchor: first_excerpt.range.primary.start,
8074 }
8075 };
8076 header_jump_data_inner(editor_snapshot, block_row_start, height, &jump_target)
8077}
8078
8079struct JumpTargetInExcerptInput<'a> {
8080 id: ExcerptId,
8081 buffer: &'a language::BufferSnapshot,
8082 excerpt_start_anchor: text::Anchor,
8083 jump_anchor: text::Anchor,
8084}
8085
8086fn header_jump_data_inner(
8087 snapshot: &EditorSnapshot,
8088 block_row_start: DisplayRow,
8089 height: u32,
8090 for_excerpt: &JumpTargetInExcerptInput,
8091) -> JumpData {
8092 let buffer = &for_excerpt.buffer;
8093 let jump_position = language::ToPoint::to_point(&for_excerpt.jump_anchor, buffer);
8094 let excerpt_start = for_excerpt.excerpt_start_anchor;
8095 let rows_from_excerpt_start = if for_excerpt.jump_anchor == excerpt_start {
8096 0
8097 } else {
8098 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
8099 jump_position.row.saturating_sub(excerpt_start_point.row)
8100 };
8101
8102 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
8103 .saturating_sub(
8104 snapshot
8105 .scroll_anchor
8106 .scroll_position(&snapshot.display_snapshot)
8107 .y as u32,
8108 );
8109
8110 JumpData::MultiBufferPoint {
8111 excerpt_id: for_excerpt.id,
8112 anchor: for_excerpt.jump_anchor,
8113 position: jump_position,
8114 line_offset_from_top,
8115 }
8116}
8117
8118pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
8119
8120impl AcceptEditPredictionBinding {
8121 pub fn keystroke(&self) -> Option<&KeybindingKeystroke> {
8122 if let Some(binding) = self.0.as_ref() {
8123 match &binding.keystrokes() {
8124 [keystroke, ..] => Some(keystroke),
8125 _ => None,
8126 }
8127 } else {
8128 None
8129 }
8130 }
8131}
8132
8133fn prepaint_gutter_button(
8134 button: IconButton,
8135 row: DisplayRow,
8136 line_height: Pixels,
8137 gutter_dimensions: &GutterDimensions,
8138 scroll_position: gpui::Point<ScrollOffset>,
8139 gutter_hitbox: &Hitbox,
8140 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
8141 window: &mut Window,
8142 cx: &mut App,
8143) -> AnyElement {
8144 let mut button = button.into_any_element();
8145
8146 let available_space = size(
8147 AvailableSpace::MinContent,
8148 AvailableSpace::Definite(line_height),
8149 );
8150 let indicator_size = button.layout_as_root(available_space, window, cx);
8151
8152 let blame_width = gutter_dimensions.git_blame_entries_width;
8153 let gutter_width = display_hunks
8154 .binary_search_by(|(hunk, _)| match hunk {
8155 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
8156 DisplayDiffHunk::Unfolded {
8157 display_row_range, ..
8158 } => {
8159 if display_row_range.end <= row {
8160 Ordering::Less
8161 } else if display_row_range.start > row {
8162 Ordering::Greater
8163 } else {
8164 Ordering::Equal
8165 }
8166 }
8167 })
8168 .ok()
8169 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
8170 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
8171
8172 let mut x = left_offset;
8173 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
8174 - indicator_size.width
8175 - left_offset;
8176 x += available_width / 2.;
8177
8178 let mut y =
8179 Pixels::from((row.as_f64() - scroll_position.y) * ScrollPixelOffset::from(line_height));
8180 y += (line_height - indicator_size.height) / 2.;
8181
8182 button.prepaint_as_root(
8183 gutter_hitbox.origin + point(x, y),
8184 available_space,
8185 window,
8186 cx,
8187 );
8188 button
8189}
8190
8191fn render_inline_blame_entry(
8192 blame_entry: BlameEntry,
8193 style: &EditorStyle,
8194 cx: &mut App,
8195) -> Option<AnyElement> {
8196 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
8197 renderer.render_inline_blame_entry(&style.text, blame_entry, cx)
8198}
8199
8200fn render_blame_entry_popover(
8201 blame_entry: BlameEntry,
8202 scroll_handle: ScrollHandle,
8203 commit_message: Option<ParsedCommitMessage>,
8204 markdown: Entity<Markdown>,
8205 workspace: WeakEntity<Workspace>,
8206 blame: &Entity<GitBlame>,
8207 buffer: BufferId,
8208 window: &mut Window,
8209 cx: &mut App,
8210) -> Option<AnyElement> {
8211 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
8212 let blame = blame.read(cx);
8213 let repository = blame.repository(cx, buffer)?;
8214 renderer.render_blame_entry_popover(
8215 blame_entry,
8216 scroll_handle,
8217 commit_message,
8218 markdown,
8219 repository,
8220 workspace,
8221 window,
8222 cx,
8223 )
8224}
8225
8226fn render_blame_entry(
8227 ix: usize,
8228 blame: &Entity<GitBlame>,
8229 blame_entry: BlameEntry,
8230 style: &EditorStyle,
8231 last_used_color: &mut Option<(Hsla, Oid)>,
8232 editor: Entity<Editor>,
8233 workspace: Entity<Workspace>,
8234 buffer: BufferId,
8235 renderer: &dyn BlameRenderer,
8236 window: &mut Window,
8237 cx: &mut App,
8238) -> Option<AnyElement> {
8239 let index: u32 = blame_entry.sha.into();
8240 let mut sha_color = cx.theme().players().color_for_participant(index).cursor;
8241
8242 // If the last color we used is the same as the one we get for this line, but
8243 // the commit SHAs are different, then we try again to get a different color.
8244 if let Some((color, sha)) = *last_used_color
8245 && sha != blame_entry.sha
8246 && color == sha_color
8247 {
8248 sha_color = cx.theme().players().color_for_participant(index + 1).cursor;
8249 }
8250 last_used_color.replace((sha_color, blame_entry.sha));
8251
8252 let blame = blame.read(cx);
8253 let details = blame.details_for_entry(buffer, &blame_entry);
8254 let repository = blame.repository(cx, buffer)?;
8255 renderer.render_blame_entry(
8256 &style.text,
8257 blame_entry,
8258 details,
8259 repository,
8260 workspace.downgrade(),
8261 editor,
8262 ix,
8263 sha_color,
8264 window,
8265 cx,
8266 )
8267}
8268
8269#[derive(Debug)]
8270pub(crate) struct LineWithInvisibles {
8271 fragments: SmallVec<[LineFragment; 1]>,
8272 invisibles: Vec<Invisible>,
8273 len: usize,
8274 pub(crate) width: Pixels,
8275 font_size: Pixels,
8276}
8277
8278enum LineFragment {
8279 Text(ShapedLine),
8280 Element {
8281 id: ChunkRendererId,
8282 element: Option<AnyElement>,
8283 size: Size<Pixels>,
8284 len: usize,
8285 },
8286}
8287
8288impl fmt::Debug for LineFragment {
8289 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
8290 match self {
8291 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
8292 LineFragment::Element { size, len, .. } => f
8293 .debug_struct("Element")
8294 .field("size", size)
8295 .field("len", len)
8296 .finish(),
8297 }
8298 }
8299}
8300
8301impl LineWithInvisibles {
8302 fn from_chunks<'a>(
8303 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
8304 editor_style: &EditorStyle,
8305 max_line_len: usize,
8306 max_line_count: usize,
8307 editor_mode: &EditorMode,
8308 text_width: Pixels,
8309 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8310 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
8311 window: &mut Window,
8312 cx: &mut App,
8313 ) -> Vec<Self> {
8314 let text_style = &editor_style.text;
8315 let mut layouts = Vec::with_capacity(max_line_count);
8316 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
8317 let mut line = String::new();
8318 let mut invisibles = Vec::new();
8319 let mut width = Pixels::ZERO;
8320 let mut len = 0;
8321 let mut styles = Vec::new();
8322 let mut non_whitespace_added = false;
8323 let mut row = 0;
8324 let mut line_exceeded_max_len = false;
8325 let font_size = text_style.font_size.to_pixels(window.rem_size());
8326 let min_contrast = EditorSettings::get_global(cx).minimum_contrast_for_highlights;
8327
8328 let ellipsis = SharedString::from("β―");
8329
8330 for highlighted_chunk in chunks.chain([HighlightedChunk {
8331 text: "\n",
8332 style: None,
8333 is_tab: false,
8334 is_inlay: false,
8335 replacement: None,
8336 }]) {
8337 if let Some(replacement) = highlighted_chunk.replacement {
8338 if !line.is_empty() {
8339 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8340 let text_runs: &[TextRun] = if segments.is_empty() {
8341 &styles
8342 } else {
8343 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8344 };
8345 let shaped_line = window.text_system().shape_line(
8346 line.clone().into(),
8347 font_size,
8348 text_runs,
8349 None,
8350 );
8351 width += shaped_line.width;
8352 len += shaped_line.len;
8353 fragments.push(LineFragment::Text(shaped_line));
8354 line.clear();
8355 styles.clear();
8356 }
8357
8358 match replacement {
8359 ChunkReplacement::Renderer(renderer) => {
8360 let available_width = if renderer.constrain_width {
8361 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
8362 ellipsis.clone()
8363 } else {
8364 SharedString::from(Arc::from(highlighted_chunk.text))
8365 };
8366 let shaped_line = window.text_system().shape_line(
8367 chunk,
8368 font_size,
8369 &[text_style.to_run(highlighted_chunk.text.len())],
8370 None,
8371 );
8372 AvailableSpace::Definite(shaped_line.width)
8373 } else {
8374 AvailableSpace::MinContent
8375 };
8376
8377 let mut element = (renderer.render)(&mut ChunkRendererContext {
8378 context: cx,
8379 window,
8380 max_width: text_width,
8381 });
8382 let line_height = text_style.line_height_in_pixels(window.rem_size());
8383 let size = element.layout_as_root(
8384 size(available_width, AvailableSpace::Definite(line_height)),
8385 window,
8386 cx,
8387 );
8388
8389 width += size.width;
8390 len += highlighted_chunk.text.len();
8391 fragments.push(LineFragment::Element {
8392 id: renderer.id,
8393 element: Some(element),
8394 size,
8395 len: highlighted_chunk.text.len(),
8396 });
8397 }
8398 ChunkReplacement::Str(x) => {
8399 let text_style = if let Some(style) = highlighted_chunk.style {
8400 Cow::Owned(text_style.clone().highlight(style))
8401 } else {
8402 Cow::Borrowed(text_style)
8403 };
8404
8405 let run = TextRun {
8406 len: x.len(),
8407 font: text_style.font(),
8408 color: text_style.color,
8409 background_color: text_style.background_color,
8410 underline: text_style.underline,
8411 strikethrough: text_style.strikethrough,
8412 };
8413 let line_layout = window
8414 .text_system()
8415 .shape_line(x, font_size, &[run], None)
8416 .with_len(highlighted_chunk.text.len());
8417
8418 width += line_layout.width;
8419 len += highlighted_chunk.text.len();
8420 fragments.push(LineFragment::Text(line_layout))
8421 }
8422 }
8423 } else {
8424 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
8425 if ix > 0 {
8426 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8427 let text_runs = if segments.is_empty() {
8428 &styles
8429 } else {
8430 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8431 };
8432 let shaped_line = window.text_system().shape_line(
8433 line.clone().into(),
8434 font_size,
8435 text_runs,
8436 None,
8437 );
8438 width += shaped_line.width;
8439 len += shaped_line.len;
8440 fragments.push(LineFragment::Text(shaped_line));
8441 layouts.push(Self {
8442 width: mem::take(&mut width),
8443 len: mem::take(&mut len),
8444 fragments: mem::take(&mut fragments),
8445 invisibles: std::mem::take(&mut invisibles),
8446 font_size,
8447 });
8448
8449 line.clear();
8450 styles.clear();
8451 row += 1;
8452 line_exceeded_max_len = false;
8453 non_whitespace_added = false;
8454 if row == max_line_count {
8455 return layouts;
8456 }
8457 }
8458
8459 if !line_chunk.is_empty() && !line_exceeded_max_len {
8460 let text_style = if let Some(style) = highlighted_chunk.style {
8461 Cow::Owned(text_style.clone().highlight(style))
8462 } else {
8463 Cow::Borrowed(text_style)
8464 };
8465
8466 if line.len() + line_chunk.len() > max_line_len {
8467 let mut chunk_len = max_line_len - line.len();
8468 while !line_chunk.is_char_boundary(chunk_len) {
8469 chunk_len -= 1;
8470 }
8471 line_chunk = &line_chunk[..chunk_len];
8472 line_exceeded_max_len = true;
8473 }
8474
8475 styles.push(TextRun {
8476 len: line_chunk.len(),
8477 font: text_style.font(),
8478 color: text_style.color,
8479 background_color: text_style.background_color,
8480 underline: text_style.underline,
8481 strikethrough: text_style.strikethrough,
8482 });
8483
8484 if editor_mode.is_full() && !highlighted_chunk.is_inlay {
8485 // Line wrap pads its contents with fake whitespaces,
8486 // avoid printing them
8487 let is_soft_wrapped = is_row_soft_wrapped(row);
8488 if highlighted_chunk.is_tab {
8489 if non_whitespace_added || !is_soft_wrapped {
8490 invisibles.push(Invisible::Tab {
8491 line_start_offset: line.len(),
8492 line_end_offset: line.len() + line_chunk.len(),
8493 });
8494 }
8495 } else {
8496 invisibles.extend(line_chunk.char_indices().filter_map(
8497 |(index, c)| {
8498 let is_whitespace = c.is_whitespace();
8499 non_whitespace_added |= !is_whitespace;
8500 if is_whitespace
8501 && (non_whitespace_added || !is_soft_wrapped)
8502 {
8503 Some(Invisible::Whitespace {
8504 line_offset: line.len() + index,
8505 })
8506 } else {
8507 None
8508 }
8509 },
8510 ))
8511 }
8512 }
8513
8514 line.push_str(line_chunk);
8515 }
8516 }
8517 }
8518 }
8519
8520 layouts
8521 }
8522
8523 /// Takes text runs and non-overlapping left-to-right background ranges with color.
8524 /// Returns new text runs with adjusted contrast as per background ranges.
8525 fn split_runs_by_bg_segments(
8526 text_runs: &[TextRun],
8527 bg_segments: &[(Range<DisplayPoint>, Hsla)],
8528 min_contrast: f32,
8529 start_col_offset: usize,
8530 ) -> Vec<TextRun> {
8531 let mut output_runs: Vec<TextRun> = Vec::with_capacity(text_runs.len());
8532 let mut line_col = start_col_offset;
8533 let mut segment_ix = 0usize;
8534
8535 for text_run in text_runs.iter() {
8536 let run_start_col = line_col;
8537 let run_end_col = run_start_col + text_run.len;
8538 while segment_ix < bg_segments.len()
8539 && (bg_segments[segment_ix].0.end.column() as usize) <= run_start_col
8540 {
8541 segment_ix += 1;
8542 }
8543 let mut cursor_col = run_start_col;
8544 let mut local_segment_ix = segment_ix;
8545 while local_segment_ix < bg_segments.len() {
8546 let (range, segment_color) = &bg_segments[local_segment_ix];
8547 let segment_start_col = range.start.column() as usize;
8548 let segment_end_col = range.end.column() as usize;
8549 if segment_start_col >= run_end_col {
8550 break;
8551 }
8552 if segment_start_col > cursor_col {
8553 let span_len = segment_start_col - cursor_col;
8554 output_runs.push(TextRun {
8555 len: span_len,
8556 font: text_run.font.clone(),
8557 color: text_run.color,
8558 background_color: text_run.background_color,
8559 underline: text_run.underline,
8560 strikethrough: text_run.strikethrough,
8561 });
8562 cursor_col = segment_start_col;
8563 }
8564 let segment_slice_end_col = segment_end_col.min(run_end_col);
8565 if segment_slice_end_col > cursor_col {
8566 let new_text_color =
8567 ensure_minimum_contrast(text_run.color, *segment_color, min_contrast);
8568 output_runs.push(TextRun {
8569 len: segment_slice_end_col - cursor_col,
8570 font: text_run.font.clone(),
8571 color: new_text_color,
8572 background_color: text_run.background_color,
8573 underline: text_run.underline,
8574 strikethrough: text_run.strikethrough,
8575 });
8576 cursor_col = segment_slice_end_col;
8577 }
8578 if segment_end_col >= run_end_col {
8579 break;
8580 }
8581 local_segment_ix += 1;
8582 }
8583 if cursor_col < run_end_col {
8584 output_runs.push(TextRun {
8585 len: run_end_col - cursor_col,
8586 font: text_run.font.clone(),
8587 color: text_run.color,
8588 background_color: text_run.background_color,
8589 underline: text_run.underline,
8590 strikethrough: text_run.strikethrough,
8591 });
8592 }
8593 line_col = run_end_col;
8594 segment_ix = local_segment_ix;
8595 }
8596 output_runs
8597 }
8598
8599 fn prepaint(
8600 &mut self,
8601 line_height: Pixels,
8602 scroll_position: gpui::Point<ScrollOffset>,
8603 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
8604 row: DisplayRow,
8605 content_origin: gpui::Point<Pixels>,
8606 line_elements: &mut SmallVec<[AnyElement; 1]>,
8607 window: &mut Window,
8608 cx: &mut App,
8609 ) {
8610 let line_y = f32::from(line_height) * Pixels::from(row.as_f64() - scroll_position.y);
8611 self.prepaint_with_custom_offset(
8612 line_height,
8613 scroll_pixel_position,
8614 content_origin,
8615 line_y,
8616 line_elements,
8617 window,
8618 cx,
8619 );
8620 }
8621
8622 fn prepaint_with_custom_offset(
8623 &mut self,
8624 line_height: Pixels,
8625 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
8626 content_origin: gpui::Point<Pixels>,
8627 line_y: Pixels,
8628 line_elements: &mut SmallVec<[AnyElement; 1]>,
8629 window: &mut Window,
8630 cx: &mut App,
8631 ) {
8632 let mut fragment_origin =
8633 content_origin + gpui::point(Pixels::from(-scroll_pixel_position.x), line_y);
8634 for fragment in &mut self.fragments {
8635 match fragment {
8636 LineFragment::Text(line) => {
8637 fragment_origin.x += line.width;
8638 }
8639 LineFragment::Element { element, size, .. } => {
8640 let mut element = element
8641 .take()
8642 .expect("you can't prepaint LineWithInvisibles twice");
8643
8644 // Center the element vertically within the line.
8645 let mut element_origin = fragment_origin;
8646 element_origin.y += (line_height - size.height) / 2.;
8647 element.prepaint_at(element_origin, window, cx);
8648 line_elements.push(element);
8649
8650 fragment_origin.x += size.width;
8651 }
8652 }
8653 }
8654 }
8655
8656 fn draw(
8657 &self,
8658 layout: &EditorLayout,
8659 row: DisplayRow,
8660 content_origin: gpui::Point<Pixels>,
8661 whitespace_setting: ShowWhitespaceSetting,
8662 selection_ranges: &[Range<DisplayPoint>],
8663 window: &mut Window,
8664 cx: &mut App,
8665 ) {
8666 self.draw_with_custom_offset(
8667 layout,
8668 row,
8669 content_origin,
8670 layout.position_map.line_height
8671 * (row.as_f64() - layout.position_map.scroll_position.y) as f32,
8672 whitespace_setting,
8673 selection_ranges,
8674 window,
8675 cx,
8676 );
8677 }
8678
8679 fn draw_with_custom_offset(
8680 &self,
8681 layout: &EditorLayout,
8682 row: DisplayRow,
8683 content_origin: gpui::Point<Pixels>,
8684 line_y: Pixels,
8685 whitespace_setting: ShowWhitespaceSetting,
8686 selection_ranges: &[Range<DisplayPoint>],
8687 window: &mut Window,
8688 cx: &mut App,
8689 ) {
8690 let line_height = layout.position_map.line_height;
8691 let mut fragment_origin = content_origin
8692 + gpui::point(
8693 Pixels::from(-layout.position_map.scroll_pixel_position.x),
8694 line_y,
8695 );
8696
8697 for fragment in &self.fragments {
8698 match fragment {
8699 LineFragment::Text(line) => {
8700 line.paint(fragment_origin, line_height, window, cx)
8701 .log_err();
8702 fragment_origin.x += line.width;
8703 }
8704 LineFragment::Element { size, .. } => {
8705 fragment_origin.x += size.width;
8706 }
8707 }
8708 }
8709
8710 self.draw_invisibles(
8711 selection_ranges,
8712 layout,
8713 content_origin,
8714 line_y,
8715 row,
8716 line_height,
8717 whitespace_setting,
8718 window,
8719 cx,
8720 );
8721 }
8722
8723 fn draw_background(
8724 &self,
8725 layout: &EditorLayout,
8726 row: DisplayRow,
8727 content_origin: gpui::Point<Pixels>,
8728 window: &mut Window,
8729 cx: &mut App,
8730 ) {
8731 let line_height = layout.position_map.line_height;
8732 let line_y = line_height * (row.as_f64() - layout.position_map.scroll_position.y) as f32;
8733
8734 let mut fragment_origin = content_origin
8735 + gpui::point(
8736 Pixels::from(-layout.position_map.scroll_pixel_position.x),
8737 line_y,
8738 );
8739
8740 for fragment in &self.fragments {
8741 match fragment {
8742 LineFragment::Text(line) => {
8743 line.paint_background(fragment_origin, line_height, window, cx)
8744 .log_err();
8745 fragment_origin.x += line.width;
8746 }
8747 LineFragment::Element { size, .. } => {
8748 fragment_origin.x += size.width;
8749 }
8750 }
8751 }
8752 }
8753
8754 fn draw_invisibles(
8755 &self,
8756 selection_ranges: &[Range<DisplayPoint>],
8757 layout: &EditorLayout,
8758 content_origin: gpui::Point<Pixels>,
8759 line_y: Pixels,
8760 row: DisplayRow,
8761 line_height: Pixels,
8762 whitespace_setting: ShowWhitespaceSetting,
8763 window: &mut Window,
8764 cx: &mut App,
8765 ) {
8766 let extract_whitespace_info = |invisible: &Invisible| {
8767 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
8768 Invisible::Tab {
8769 line_start_offset,
8770 line_end_offset,
8771 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
8772 Invisible::Whitespace { line_offset } => {
8773 (*line_offset, line_offset + 1, &layout.space_invisible)
8774 }
8775 };
8776
8777 let x_offset: ScrollPixelOffset = self.x_for_index(token_offset).into();
8778 let invisible_offset: ScrollPixelOffset =
8779 ((layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0)
8780 .into();
8781 let origin = content_origin
8782 + gpui::point(
8783 Pixels::from(
8784 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
8785 ),
8786 line_y,
8787 );
8788
8789 (
8790 [token_offset, token_end_offset],
8791 Box::new(move |window: &mut Window, cx: &mut App| {
8792 invisible_symbol
8793 .paint(origin, line_height, window, cx)
8794 .log_err();
8795 }),
8796 )
8797 };
8798
8799 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
8800 match whitespace_setting {
8801 ShowWhitespaceSetting::None => (),
8802 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
8803 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
8804 let invisible_point = DisplayPoint::new(row, start as u32);
8805 if !selection_ranges
8806 .iter()
8807 .any(|region| region.start <= invisible_point && invisible_point < region.end)
8808 {
8809 return;
8810 }
8811
8812 paint(window, cx);
8813 }),
8814
8815 ShowWhitespaceSetting::Trailing => {
8816 let mut previous_start = self.len;
8817 for ([start, end], paint) in invisible_iter.rev() {
8818 if previous_start != end {
8819 break;
8820 }
8821 previous_start = start;
8822 paint(window, cx);
8823 }
8824 }
8825
8826 // For a whitespace to be on a boundary, any of the following conditions need to be met:
8827 // - It is a tab
8828 // - It is adjacent to an edge (start or end)
8829 // - It is adjacent to a whitespace (left or right)
8830 ShowWhitespaceSetting::Boundary => {
8831 // 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
8832 // the above cases.
8833 // Note: We zip in the original `invisibles` to check for tab equality
8834 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
8835 for (([start, end], paint), invisible) in
8836 invisible_iter.zip_eq(self.invisibles.iter())
8837 {
8838 let should_render = match (&last_seen, invisible) {
8839 (_, Invisible::Tab { .. }) => true,
8840 (Some((_, last_end, _)), _) => *last_end == start,
8841 _ => false,
8842 };
8843
8844 if should_render || start == 0 || end == self.len {
8845 paint(window, cx);
8846
8847 // Since we are scanning from the left, we will skip over the first available whitespace that is part
8848 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
8849 if let Some((should_render_last, last_end, paint_last)) = last_seen {
8850 // Note that we need to make sure that the last one is actually adjacent
8851 if !should_render_last && last_end == start {
8852 paint_last(window, cx);
8853 }
8854 }
8855 }
8856
8857 // Manually render anything within a selection
8858 let invisible_point = DisplayPoint::new(row, start as u32);
8859 if selection_ranges.iter().any(|region| {
8860 region.start <= invisible_point && invisible_point < region.end
8861 }) {
8862 paint(window, cx);
8863 }
8864
8865 last_seen = Some((should_render, end, paint));
8866 }
8867 }
8868 }
8869 }
8870
8871 pub fn x_for_index(&self, index: usize) -> Pixels {
8872 let mut fragment_start_x = Pixels::ZERO;
8873 let mut fragment_start_index = 0;
8874
8875 for fragment in &self.fragments {
8876 match fragment {
8877 LineFragment::Text(shaped_line) => {
8878 let fragment_end_index = fragment_start_index + shaped_line.len;
8879 if index < fragment_end_index {
8880 return fragment_start_x
8881 + shaped_line.x_for_index(index - fragment_start_index);
8882 }
8883 fragment_start_x += shaped_line.width;
8884 fragment_start_index = fragment_end_index;
8885 }
8886 LineFragment::Element { len, size, .. } => {
8887 let fragment_end_index = fragment_start_index + len;
8888 if index < fragment_end_index {
8889 return fragment_start_x;
8890 }
8891 fragment_start_x += size.width;
8892 fragment_start_index = fragment_end_index;
8893 }
8894 }
8895 }
8896
8897 fragment_start_x
8898 }
8899
8900 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
8901 let mut fragment_start_x = Pixels::ZERO;
8902 let mut fragment_start_index = 0;
8903
8904 for fragment in &self.fragments {
8905 match fragment {
8906 LineFragment::Text(shaped_line) => {
8907 let fragment_end_x = fragment_start_x + shaped_line.width;
8908 if x < fragment_end_x {
8909 return Some(
8910 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
8911 );
8912 }
8913 fragment_start_x = fragment_end_x;
8914 fragment_start_index += shaped_line.len;
8915 }
8916 LineFragment::Element { len, size, .. } => {
8917 let fragment_end_x = fragment_start_x + size.width;
8918 if x < fragment_end_x {
8919 return Some(fragment_start_index);
8920 }
8921 fragment_start_index += len;
8922 fragment_start_x = fragment_end_x;
8923 }
8924 }
8925 }
8926
8927 None
8928 }
8929
8930 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
8931 let mut fragment_start_index = 0;
8932
8933 for fragment in &self.fragments {
8934 match fragment {
8935 LineFragment::Text(shaped_line) => {
8936 let fragment_end_index = fragment_start_index + shaped_line.len;
8937 if index < fragment_end_index {
8938 return shaped_line.font_id_for_index(index - fragment_start_index);
8939 }
8940 fragment_start_index = fragment_end_index;
8941 }
8942 LineFragment::Element { len, .. } => {
8943 let fragment_end_index = fragment_start_index + len;
8944 if index < fragment_end_index {
8945 return None;
8946 }
8947 fragment_start_index = fragment_end_index;
8948 }
8949 }
8950 }
8951
8952 None
8953 }
8954}
8955
8956#[derive(Debug, Clone, Copy, PartialEq, Eq)]
8957enum Invisible {
8958 /// A tab character
8959 ///
8960 /// A tab character is internally represented by spaces (configured by the user's tab width)
8961 /// aligned to the nearest column, so it's necessary to store the start and end offset for
8962 /// adjacency checks.
8963 Tab {
8964 line_start_offset: usize,
8965 line_end_offset: usize,
8966 },
8967 Whitespace {
8968 line_offset: usize,
8969 },
8970}
8971
8972impl EditorElement {
8973 /// Returns the rem size to use when rendering the [`EditorElement`].
8974 ///
8975 /// This allows UI elements to scale based on the `buffer_font_size`.
8976 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
8977 match self.editor.read(cx).mode {
8978 EditorMode::Full {
8979 scale_ui_elements_with_buffer_font_size: true,
8980 ..
8981 }
8982 | EditorMode::Minimap { .. } => {
8983 let buffer_font_size = self.style.text.font_size;
8984 match buffer_font_size {
8985 AbsoluteLength::Pixels(pixels) => {
8986 let rem_size_scale = {
8987 // Our default UI font size is 14px on a 16px base scale.
8988 // This means the default UI font size is 0.875rems.
8989 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
8990
8991 // We then determine the delta between a single rem and the default font
8992 // size scale.
8993 let default_font_size_delta = 1. - default_font_size_scale;
8994
8995 // Finally, we add this delta to 1rem to get the scale factor that
8996 // should be used to scale up the UI.
8997 1. + default_font_size_delta
8998 };
8999
9000 Some(pixels * rem_size_scale)
9001 }
9002 AbsoluteLength::Rems(rems) => {
9003 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
9004 }
9005 }
9006 }
9007 // We currently use single-line and auto-height editors in UI contexts,
9008 // so we don't want to scale everything with the buffer font size, as it
9009 // ends up looking off.
9010 _ => None,
9011 }
9012 }
9013
9014 fn editor_with_selections(&self, cx: &App) -> Option<Entity<Editor>> {
9015 if let EditorMode::Minimap { parent } = self.editor.read(cx).mode() {
9016 parent.upgrade()
9017 } else {
9018 Some(self.editor.clone())
9019 }
9020 }
9021}
9022
9023#[derive(Default)]
9024pub struct EditorRequestLayoutState {
9025 // We use prepaint depth to limit the number of times prepaint is
9026 // called recursively. We need this so that we can update stale
9027 // data for e.g. block heights in block map.
9028 prepaint_depth: Rc<Cell<usize>>,
9029}
9030
9031impl EditorRequestLayoutState {
9032 // In ideal conditions we only need one more subsequent prepaint call for resize to take effect.
9033 // i.e. MAX_PREPAINT_DEPTH = 2, but since moving blocks inline (place_near), more lines from
9034 // below get exposed, and we end up querying blocks for those lines too in subsequent renders.
9035 // Setting MAX_PREPAINT_DEPTH = 3, passes all tests. Just to be on the safe side we set it to 5, so
9036 // that subsequent shrinking does not lead to incorrect block placing.
9037 const MAX_PREPAINT_DEPTH: usize = 5;
9038
9039 fn increment_prepaint_depth(&self) -> EditorPrepaintGuard {
9040 let depth = self.prepaint_depth.get();
9041 self.prepaint_depth.set(depth + 1);
9042 EditorPrepaintGuard {
9043 prepaint_depth: self.prepaint_depth.clone(),
9044 }
9045 }
9046
9047 fn can_prepaint(&self) -> bool {
9048 self.prepaint_depth.get() < Self::MAX_PREPAINT_DEPTH
9049 }
9050}
9051
9052struct EditorPrepaintGuard {
9053 prepaint_depth: Rc<Cell<usize>>,
9054}
9055
9056impl Drop for EditorPrepaintGuard {
9057 fn drop(&mut self) {
9058 let depth = self.prepaint_depth.get();
9059 self.prepaint_depth.set(depth.saturating_sub(1));
9060 }
9061}
9062
9063impl Element for EditorElement {
9064 type RequestLayoutState = EditorRequestLayoutState;
9065 type PrepaintState = EditorLayout;
9066
9067 fn id(&self) -> Option<ElementId> {
9068 None
9069 }
9070
9071 fn source_location(&self) -> Option<&'static core::panic::Location<'static>> {
9072 None
9073 }
9074
9075 fn request_layout(
9076 &mut self,
9077 _: Option<&GlobalElementId>,
9078 _inspector_id: Option<&gpui::InspectorElementId>,
9079 window: &mut Window,
9080 cx: &mut App,
9081 ) -> (gpui::LayoutId, Self::RequestLayoutState) {
9082 let rem_size = self.rem_size(cx);
9083 window.with_rem_size(rem_size, |window| {
9084 self.editor.update(cx, |editor, cx| {
9085 editor.set_style(self.style.clone(), window, cx);
9086
9087 let layout_id = match editor.mode {
9088 EditorMode::SingleLine => {
9089 let rem_size = window.rem_size();
9090 let height = self.style.text.line_height_in_pixels(rem_size);
9091 let mut style = Style::default();
9092 style.size.height = height.into();
9093 style.size.width = relative(1.).into();
9094 window.request_layout(style, None, cx)
9095 }
9096 EditorMode::AutoHeight {
9097 min_lines,
9098 max_lines,
9099 } => {
9100 let editor_handle = cx.entity();
9101 window.request_measured_layout(
9102 Style::default(),
9103 move |known_dimensions, available_space, window, cx| {
9104 editor_handle
9105 .update(cx, |editor, cx| {
9106 compute_auto_height_layout(
9107 editor,
9108 min_lines,
9109 max_lines,
9110 known_dimensions,
9111 available_space.width,
9112 window,
9113 cx,
9114 )
9115 })
9116 .unwrap_or_default()
9117 },
9118 )
9119 }
9120 EditorMode::Minimap { .. } => {
9121 let mut style = Style::default();
9122 style.size.width = relative(1.).into();
9123 style.size.height = relative(1.).into();
9124 window.request_layout(style, None, cx)
9125 }
9126 EditorMode::Full {
9127 sizing_behavior, ..
9128 } => {
9129 let mut style = Style::default();
9130 style.size.width = relative(1.).into();
9131 if sizing_behavior == SizingBehavior::SizeByContent {
9132 let snapshot = editor.snapshot(window, cx);
9133 let line_height =
9134 self.style.text.line_height_in_pixels(window.rem_size());
9135 let scroll_height =
9136 (snapshot.max_point().row().next_row().0 as f32) * line_height;
9137 style.size.height = scroll_height.into();
9138 } else {
9139 style.size.height = relative(1.).into();
9140 }
9141 window.request_layout(style, None, cx)
9142 }
9143 };
9144
9145 (layout_id, EditorRequestLayoutState::default())
9146 })
9147 })
9148 }
9149
9150 fn prepaint(
9151 &mut self,
9152 _: Option<&GlobalElementId>,
9153 _inspector_id: Option<&gpui::InspectorElementId>,
9154 bounds: Bounds<Pixels>,
9155 request_layout: &mut Self::RequestLayoutState,
9156 window: &mut Window,
9157 cx: &mut App,
9158 ) -> Self::PrepaintState {
9159 let _prepaint_depth_guard = request_layout.increment_prepaint_depth();
9160 let text_style = TextStyleRefinement {
9161 font_size: Some(self.style.text.font_size),
9162 line_height: Some(self.style.text.line_height),
9163 ..Default::default()
9164 };
9165
9166 let is_minimap = self.editor.read(cx).mode.is_minimap();
9167 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
9168
9169 if !is_minimap {
9170 let focus_handle = self.editor.focus_handle(cx);
9171 window.set_view_id(self.editor.entity_id());
9172 window.set_focus_handle(&focus_handle, cx);
9173 }
9174
9175 let rem_size = self.rem_size(cx);
9176 window.with_rem_size(rem_size, |window| {
9177 window.with_text_style(Some(text_style), |window| {
9178 window.with_content_mask(Some(ContentMask { bounds }), |window| {
9179 let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| {
9180 (editor.snapshot(window, cx), editor.read_only(cx))
9181 });
9182 let style = &self.style;
9183
9184 let rem_size = window.rem_size();
9185 let font_id = window.text_system().resolve_font(&style.text.font());
9186 let font_size = style.text.font_size.to_pixels(rem_size);
9187 let line_height = style.text.line_height_in_pixels(rem_size);
9188 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
9189 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
9190 let glyph_grid_cell = size(em_advance, line_height);
9191
9192 let gutter_dimensions = snapshot
9193 .gutter_dimensions(
9194 font_id,
9195 font_size,
9196 style,
9197 window,
9198 cx,
9199 );
9200 let text_width = bounds.size.width - gutter_dimensions.width;
9201
9202 let settings = EditorSettings::get_global(cx);
9203 let scrollbars_shown = settings.scrollbar.show != ShowScrollbar::Never;
9204 let vertical_scrollbar_width = (scrollbars_shown
9205 && settings.scrollbar.axes.vertical
9206 && self.editor.read(cx).show_scrollbars.vertical)
9207 .then_some(style.scrollbar_width)
9208 .unwrap_or_default();
9209 let minimap_width = self
9210 .get_minimap_width(
9211 &settings.minimap,
9212 scrollbars_shown,
9213 text_width,
9214 em_width,
9215 font_size,
9216 rem_size,
9217 cx,
9218 )
9219 .unwrap_or_default();
9220
9221 let right_margin = minimap_width + vertical_scrollbar_width;
9222
9223 let editor_width =
9224 text_width - gutter_dimensions.margin - 2 * em_width - right_margin;
9225 let editor_margins = EditorMargins {
9226 gutter: gutter_dimensions,
9227 right: right_margin,
9228 };
9229
9230 snapshot = self.editor.update(cx, |editor, cx| {
9231 editor.last_bounds = Some(bounds);
9232 editor.gutter_dimensions = gutter_dimensions;
9233 editor.set_visible_line_count(
9234 (bounds.size.height / line_height) as f64,
9235 window,
9236 cx,
9237 );
9238 editor.set_visible_column_count(f64::from(editor_width / em_advance));
9239
9240 if matches!(
9241 editor.mode,
9242 EditorMode::AutoHeight { .. } | EditorMode::Minimap { .. }
9243 ) {
9244 snapshot
9245 } else {
9246 let wrap_width_for = |column: u32| (column as f32 * em_advance).ceil();
9247 let wrap_width = match editor.soft_wrap_mode(cx) {
9248 SoftWrap::GitDiff => None,
9249 SoftWrap::None => Some(wrap_width_for(MAX_LINE_LEN as u32 / 2)),
9250 SoftWrap::EditorWidth => Some(editor_width),
9251 SoftWrap::Column(column) => Some(wrap_width_for(column)),
9252 SoftWrap::Bounded(column) => {
9253 Some(editor_width.min(wrap_width_for(column)))
9254 }
9255 };
9256
9257 if editor.set_wrap_width(wrap_width, cx) {
9258 editor.snapshot(window, cx)
9259 } else {
9260 snapshot
9261 }
9262 }
9263 });
9264
9265 let hitbox = window.insert_hitbox(bounds, HitboxBehavior::Normal);
9266 let gutter_hitbox = window.insert_hitbox(
9267 gutter_bounds(bounds, gutter_dimensions),
9268 HitboxBehavior::Normal,
9269 );
9270 let text_hitbox = window.insert_hitbox(
9271 Bounds {
9272 origin: gutter_hitbox.top_right(),
9273 size: size(text_width, bounds.size.height),
9274 },
9275 HitboxBehavior::Normal,
9276 );
9277
9278 // Offset the content_bounds from the text_bounds by the gutter margin (which
9279 // is roughly half a character wide) to make hit testing work more like how we want.
9280 let content_offset = point(editor_margins.gutter.margin, Pixels::ZERO);
9281 let content_origin = text_hitbox.origin + content_offset;
9282
9283 let height_in_lines = f64::from(bounds.size.height / line_height);
9284 let max_row = snapshot.max_point().row().as_f64();
9285
9286 // The max scroll position for the top of the window
9287 let max_scroll_top = if matches!(
9288 snapshot.mode,
9289 EditorMode::SingleLine
9290 | EditorMode::AutoHeight { .. }
9291 | EditorMode::Full {
9292 sizing_behavior: SizingBehavior::ExcludeOverscrollMargin
9293 | SizingBehavior::SizeByContent,
9294 ..
9295 }
9296 ) {
9297 (max_row - height_in_lines + 1.).max(0.)
9298 } else {
9299 let settings = EditorSettings::get_global(cx);
9300 match settings.scroll_beyond_last_line {
9301 ScrollBeyondLastLine::OnePage => max_row,
9302 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
9303 ScrollBeyondLastLine::VerticalScrollMargin => {
9304 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
9305 .max(0.)
9306 }
9307 }
9308 };
9309
9310 let (
9311 autoscroll_request,
9312 autoscroll_containing_element,
9313 needs_horizontal_autoscroll,
9314 ) = self.editor.update(cx, |editor, cx| {
9315 let autoscroll_request = editor.scroll_manager.take_autoscroll_request();
9316
9317 let autoscroll_containing_element =
9318 autoscroll_request.is_some() || editor.has_pending_selection();
9319
9320 let (needs_horizontal_autoscroll, was_scrolled) = editor
9321 .autoscroll_vertically(
9322 bounds,
9323 line_height,
9324 max_scroll_top,
9325 autoscroll_request,
9326 window,
9327 cx,
9328 );
9329 if was_scrolled.0 {
9330 snapshot = editor.snapshot(window, cx);
9331 }
9332 (
9333 autoscroll_request,
9334 autoscroll_containing_element,
9335 needs_horizontal_autoscroll,
9336 )
9337 });
9338
9339 let mut scroll_position = snapshot.scroll_position();
9340 // The scroll position is a fractional point, the whole number of which represents
9341 // the top of the window in terms of display rows.
9342 let start_row = DisplayRow(scroll_position.y as u32);
9343 let max_row = snapshot.max_point().row();
9344 let end_row = cmp::min(
9345 (scroll_position.y + height_in_lines).ceil() as u32,
9346 max_row.next_row().0,
9347 );
9348 let end_row = DisplayRow(end_row);
9349
9350 let row_infos = snapshot // note we only get the visual range
9351 .row_infos(start_row)
9352 .take((start_row..end_row).len())
9353 .collect::<Vec<RowInfo>>();
9354 let is_row_soft_wrapped = |row: usize| {
9355 row_infos
9356 .get(row)
9357 .is_none_or(|info| info.buffer_row.is_none())
9358 };
9359
9360 let start_anchor = if start_row == Default::default() {
9361 Anchor::min()
9362 } else {
9363 snapshot.buffer_snapshot().anchor_before(
9364 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
9365 )
9366 };
9367 let end_anchor = if end_row > max_row {
9368 Anchor::max()
9369 } else {
9370 snapshot.buffer_snapshot().anchor_before(
9371 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
9372 )
9373 };
9374
9375 let mut highlighted_rows = self
9376 .editor
9377 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
9378
9379 let is_light = cx.theme().appearance().is_light();
9380
9381 let mut highlighted_ranges = self
9382 .editor_with_selections(cx)
9383 .map(|editor| {
9384 editor.read(cx).background_highlights_in_range(
9385 start_anchor..end_anchor,
9386 &snapshot.display_snapshot,
9387 cx.theme(),
9388 )
9389 })
9390 .unwrap_or_default();
9391
9392 for (ix, row_info) in row_infos.iter().enumerate() {
9393 let Some(diff_status) = row_info.diff_status else {
9394 continue;
9395 };
9396
9397 let background_color = match diff_status.kind {
9398 DiffHunkStatusKind::Added =>
9399 cx.theme().colors().version_control_added,
9400 DiffHunkStatusKind::Deleted =>
9401 cx.theme().colors().version_control_deleted,
9402 DiffHunkStatusKind::Modified => {
9403 debug_panic!("modified diff status for row info");
9404 continue;
9405 }
9406 };
9407
9408 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
9409
9410 let hollow_highlight = LineHighlight {
9411 background: (background_color.opacity(if is_light {
9412 0.08
9413 } else {
9414 0.06
9415 }))
9416 .into(),
9417 border: Some(if is_light {
9418 background_color.opacity(0.48)
9419 } else {
9420 background_color.opacity(0.36)
9421 }),
9422 include_gutter: true,
9423 type_id: None,
9424 };
9425
9426 let filled_highlight = LineHighlight {
9427 background: solid_background(background_color.opacity(hunk_opacity)),
9428 border: None,
9429 include_gutter: true,
9430 type_id: None,
9431 };
9432
9433 let background = if Self::diff_hunk_hollow(diff_status, cx) {
9434 hollow_highlight
9435 } else {
9436 filled_highlight
9437 };
9438
9439 let base_display_point =
9440 DisplayPoint::new(start_row + DisplayRow(ix as u32), 0);
9441
9442 highlighted_rows
9443 .entry(base_display_point.row())
9444 .or_insert(background);
9445 }
9446
9447 let highlighted_gutter_ranges =
9448 self.editor.read(cx).gutter_highlights_in_range(
9449 start_anchor..end_anchor,
9450 &snapshot.display_snapshot,
9451 cx,
9452 );
9453
9454 let document_colors = self
9455 .editor
9456 .read(cx)
9457 .colors
9458 .as_ref()
9459 .map(|colors| colors.editor_display_highlights(&snapshot));
9460 let redacted_ranges = self.editor.read(cx).redacted_ranges(
9461 start_anchor..end_anchor,
9462 &snapshot.display_snapshot,
9463 cx,
9464 );
9465
9466 let (local_selections, selected_buffer_ids, latest_selection_anchors): (
9467 Vec<Selection<Point>>,
9468 Vec<BufferId>,
9469 HashMap<BufferId, Anchor>,
9470 ) = self
9471 .editor_with_selections(cx)
9472 .map(|editor| {
9473 editor.update(cx, |editor, cx| {
9474 let all_selections =
9475 editor.selections.all::<Point>(&snapshot.display_snapshot);
9476 let all_anchor_selections =
9477 editor.selections.all_anchors(&snapshot.display_snapshot);
9478 let selected_buffer_ids =
9479 if editor.buffer_kind(cx) == ItemBufferKind::Singleton {
9480 Vec::new()
9481 } else {
9482 let mut selected_buffer_ids =
9483 Vec::with_capacity(all_selections.len());
9484
9485 for selection in all_selections {
9486 for buffer_id in snapshot
9487 .buffer_snapshot()
9488 .buffer_ids_for_range(selection.range())
9489 {
9490 if selected_buffer_ids.last() != Some(&buffer_id) {
9491 selected_buffer_ids.push(buffer_id);
9492 }
9493 }
9494 }
9495
9496 selected_buffer_ids
9497 };
9498
9499 let mut selections = editor.selections.disjoint_in_range(
9500 start_anchor..end_anchor,
9501 &snapshot.display_snapshot,
9502 );
9503 selections
9504 .extend(editor.selections.pending(&snapshot.display_snapshot));
9505
9506 let mut anchors_by_buffer: HashMap<BufferId, (usize, Anchor)> =
9507 HashMap::default();
9508 for selection in all_anchor_selections.iter() {
9509 let head = selection.head();
9510 if let Some(buffer_id) = head.text_anchor.buffer_id {
9511 anchors_by_buffer
9512 .entry(buffer_id)
9513 .and_modify(|(latest_id, latest_anchor)| {
9514 if selection.id > *latest_id {
9515 *latest_id = selection.id;
9516 *latest_anchor = head;
9517 }
9518 })
9519 .or_insert((selection.id, head));
9520 }
9521 }
9522 let latest_selection_anchors = anchors_by_buffer
9523 .into_iter()
9524 .map(|(buffer_id, (_, anchor))| (buffer_id, anchor))
9525 .collect();
9526
9527 (selections, selected_buffer_ids, latest_selection_anchors)
9528 })
9529 })
9530 .unwrap_or_else(|| (Vec::new(), Vec::new(), HashMap::default()));
9531
9532 let (selections, mut active_rows, newest_selection_head) = self
9533 .layout_selections(
9534 start_anchor,
9535 end_anchor,
9536 &local_selections,
9537 &snapshot,
9538 start_row,
9539 end_row,
9540 window,
9541 cx,
9542 );
9543 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
9544 editor.active_breakpoints(start_row..end_row, window, cx)
9545 });
9546 for (display_row, (_, bp, state)) in &breakpoint_rows {
9547 if bp.is_enabled() && state.is_none_or(|s| s.verified) {
9548 active_rows.entry(*display_row).or_default().breakpoint = true;
9549 }
9550 }
9551
9552 let line_numbers = self.layout_line_numbers(
9553 Some(&gutter_hitbox),
9554 gutter_dimensions,
9555 line_height,
9556 scroll_position,
9557 start_row..end_row,
9558 &row_infos,
9559 &active_rows,
9560 newest_selection_head,
9561 &snapshot,
9562 window,
9563 cx,
9564 );
9565
9566 // We add the gutter breakpoint indicator to breakpoint_rows after painting
9567 // line numbers so we don't paint a line number debug accent color if a user
9568 // has their mouse over that line when a breakpoint isn't there
9569 self.editor.update(cx, |editor, _| {
9570 if let Some(phantom_breakpoint) = &mut editor
9571 .gutter_breakpoint_indicator
9572 .0
9573 .filter(|phantom_breakpoint| phantom_breakpoint.is_active)
9574 {
9575 // Is there a non-phantom breakpoint on this line?
9576 phantom_breakpoint.collides_with_existing_breakpoint = true;
9577 breakpoint_rows
9578 .entry(phantom_breakpoint.display_row)
9579 .or_insert_with(|| {
9580 let position = snapshot.display_point_to_anchor(
9581 DisplayPoint::new(phantom_breakpoint.display_row, 0),
9582 Bias::Right,
9583 );
9584 let breakpoint = Breakpoint::new_standard();
9585 phantom_breakpoint.collides_with_existing_breakpoint = false;
9586 (position, breakpoint, None)
9587 });
9588 }
9589 });
9590
9591 let mut expand_toggles =
9592 window.with_element_namespace("expand_toggles", |window| {
9593 self.layout_expand_toggles(
9594 &gutter_hitbox,
9595 gutter_dimensions,
9596 em_width,
9597 line_height,
9598 scroll_position,
9599 &row_infos,
9600 window,
9601 cx,
9602 )
9603 });
9604
9605 let mut crease_toggles =
9606 window.with_element_namespace("crease_toggles", |window| {
9607 self.layout_crease_toggles(
9608 start_row..end_row,
9609 &row_infos,
9610 &active_rows,
9611 &snapshot,
9612 window,
9613 cx,
9614 )
9615 });
9616 let crease_trailers =
9617 window.with_element_namespace("crease_trailers", |window| {
9618 self.layout_crease_trailers(
9619 row_infos.iter().cloned(),
9620 &snapshot,
9621 window,
9622 cx,
9623 )
9624 });
9625
9626 let display_hunks = self.layout_gutter_diff_hunks(
9627 line_height,
9628 &gutter_hitbox,
9629 start_row..end_row,
9630 &snapshot,
9631 window,
9632 cx,
9633 );
9634
9635 Self::layout_word_diff_highlights(
9636 &display_hunks,
9637 &row_infos,
9638 start_row,
9639 &snapshot,
9640 &mut highlighted_ranges,
9641 cx,
9642 );
9643
9644 let merged_highlighted_ranges =
9645 if let Some((_, colors)) = document_colors.as_ref() {
9646 &highlighted_ranges
9647 .clone()
9648 .into_iter()
9649 .chain(colors.clone())
9650 .collect()
9651 } else {
9652 &highlighted_ranges
9653 };
9654 let bg_segments_per_row = Self::bg_segments_per_row(
9655 start_row..end_row,
9656 &selections,
9657 &merged_highlighted_ranges,
9658 self.style.background,
9659 );
9660
9661 let mut line_layouts = Self::layout_lines(
9662 start_row..end_row,
9663 &snapshot,
9664 &self.style,
9665 editor_width,
9666 is_row_soft_wrapped,
9667 &bg_segments_per_row,
9668 window,
9669 cx,
9670 );
9671 let new_renderer_widths = (!is_minimap).then(|| {
9672 line_layouts
9673 .iter()
9674 .flat_map(|layout| &layout.fragments)
9675 .filter_map(|fragment| {
9676 if let LineFragment::Element { id, size, .. } = fragment {
9677 Some((*id, size.width))
9678 } else {
9679 None
9680 }
9681 })
9682 });
9683 if new_renderer_widths.is_some_and(|new_renderer_widths| {
9684 self.editor.update(cx, |editor, cx| {
9685 editor.update_renderer_widths(new_renderer_widths, cx)
9686 })
9687 }) {
9688 // If the fold widths have changed, we need to prepaint
9689 // the element again to account for any changes in
9690 // wrapping.
9691 if request_layout.can_prepaint() {
9692 return self.prepaint(
9693 None,
9694 _inspector_id,
9695 bounds,
9696 request_layout,
9697 window,
9698 cx,
9699 );
9700 } else {
9701 debug_panic!(
9702 "skipping recursive prepaint at max depth. renderer widths may be stale."
9703 );
9704 }
9705 }
9706
9707 let longest_line_blame_width = self
9708 .editor
9709 .update(cx, |editor, cx| {
9710 if !editor.show_git_blame_inline {
9711 return None;
9712 }
9713 let blame = editor.blame.as_ref()?;
9714 let (_, blame_entry) = blame
9715 .update(cx, |blame, cx| {
9716 let row_infos =
9717 snapshot.row_infos(snapshot.longest_row()).next()?;
9718 blame.blame_for_rows(&[row_infos], cx).next()
9719 })
9720 .flatten()?;
9721 let mut element = render_inline_blame_entry(blame_entry, style, cx)?;
9722 let inline_blame_padding =
9723 ProjectSettings::get_global(cx).git.inline_blame.padding as f32
9724 * em_advance;
9725 Some(
9726 element
9727 .layout_as_root(AvailableSpace::min_size(), window, cx)
9728 .width
9729 + inline_blame_padding,
9730 )
9731 })
9732 .unwrap_or(Pixels::ZERO);
9733
9734 let longest_line_width = layout_line(
9735 snapshot.longest_row(),
9736 &snapshot,
9737 style,
9738 editor_width,
9739 is_row_soft_wrapped,
9740 window,
9741 cx,
9742 )
9743 .width;
9744
9745 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
9746 text_hitbox.bounds,
9747 glyph_grid_cell,
9748 size(
9749 longest_line_width,
9750 Pixels::from(max_row.as_f64() * f64::from(line_height)),
9751 ),
9752 longest_line_blame_width,
9753 EditorSettings::get_global(cx),
9754 );
9755
9756 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
9757
9758 let sticky_header_excerpt = if snapshot.buffer_snapshot().show_headers() {
9759 snapshot.sticky_header_excerpt(scroll_position.y)
9760 } else {
9761 None
9762 };
9763 let sticky_header_excerpt_id =
9764 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
9765
9766 let blocks = (!is_minimap)
9767 .then(|| {
9768 window.with_element_namespace("blocks", |window| {
9769 self.render_blocks(
9770 start_row..end_row,
9771 &snapshot,
9772 &hitbox,
9773 &text_hitbox,
9774 editor_width,
9775 &mut scroll_width,
9776 &editor_margins,
9777 em_width,
9778 gutter_dimensions.full_width(),
9779 line_height,
9780 &mut line_layouts,
9781 &local_selections,
9782 &selected_buffer_ids,
9783 &latest_selection_anchors,
9784 is_row_soft_wrapped,
9785 sticky_header_excerpt_id,
9786 window,
9787 cx,
9788 )
9789 })
9790 })
9791 .unwrap_or_default();
9792 let RenderBlocksOutput {
9793 mut blocks,
9794 row_block_types,
9795 resized_blocks,
9796 } = blocks;
9797 if let Some(resized_blocks) = resized_blocks {
9798 self.editor.update(cx, |editor, cx| {
9799 editor.resize_blocks(
9800 resized_blocks,
9801 autoscroll_request.map(|(autoscroll, _)| autoscroll),
9802 cx,
9803 )
9804 });
9805 if request_layout.can_prepaint() {
9806 return self.prepaint(
9807 None,
9808 _inspector_id,
9809 bounds,
9810 request_layout,
9811 window,
9812 cx,
9813 );
9814 } else {
9815 debug_panic!(
9816 "skipping recursive prepaint at max depth. block layout may be stale."
9817 );
9818 }
9819 }
9820
9821 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
9822 window.with_element_namespace("blocks", |window| {
9823 self.layout_sticky_buffer_header(
9824 sticky_header_excerpt,
9825 scroll_position,
9826 line_height,
9827 right_margin,
9828 &snapshot,
9829 &hitbox,
9830 &selected_buffer_ids,
9831 &blocks,
9832 &latest_selection_anchors,
9833 window,
9834 cx,
9835 )
9836 })
9837 });
9838
9839 let start_buffer_row =
9840 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot()).row);
9841 let end_buffer_row =
9842 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot()).row);
9843
9844 let scroll_max: gpui::Point<ScrollPixelOffset> = point(
9845 ScrollPixelOffset::from(
9846 ((scroll_width - editor_width) / em_advance).max(0.0),
9847 ),
9848 max_scroll_top,
9849 );
9850
9851 self.editor.update(cx, |editor, cx| {
9852 if editor.scroll_manager.clamp_scroll_left(scroll_max.x) {
9853 scroll_position.x = scroll_position.x.min(scroll_max.x);
9854 }
9855
9856 if needs_horizontal_autoscroll.0
9857 && let Some(new_scroll_position) = editor.autoscroll_horizontally(
9858 start_row,
9859 editor_width,
9860 scroll_width,
9861 em_advance,
9862 &line_layouts,
9863 autoscroll_request,
9864 window,
9865 cx,
9866 )
9867 {
9868 scroll_position = new_scroll_position;
9869 }
9870 });
9871
9872 let scroll_pixel_position = point(
9873 scroll_position.x * f64::from(em_advance),
9874 scroll_position.y * f64::from(line_height),
9875 );
9876 let sticky_headers = if !is_minimap
9877 && is_singleton
9878 && EditorSettings::get_global(cx).sticky_scroll.enabled
9879 {
9880 self.layout_sticky_headers(
9881 &snapshot,
9882 editor_width,
9883 is_row_soft_wrapped,
9884 line_height,
9885 scroll_pixel_position,
9886 content_origin,
9887 &gutter_dimensions,
9888 &gutter_hitbox,
9889 &text_hitbox,
9890 &style,
9891 window,
9892 cx,
9893 )
9894 } else {
9895 None
9896 };
9897 let indent_guides = self.layout_indent_guides(
9898 content_origin,
9899 text_hitbox.origin,
9900 start_buffer_row..end_buffer_row,
9901 scroll_pixel_position,
9902 line_height,
9903 &snapshot,
9904 window,
9905 cx,
9906 );
9907
9908 let crease_trailers =
9909 window.with_element_namespace("crease_trailers", |window| {
9910 self.prepaint_crease_trailers(
9911 crease_trailers,
9912 &line_layouts,
9913 line_height,
9914 content_origin,
9915 scroll_pixel_position,
9916 em_width,
9917 window,
9918 cx,
9919 )
9920 });
9921
9922 let (edit_prediction_popover, edit_prediction_popover_origin) = self
9923 .editor
9924 .update(cx, |editor, cx| {
9925 editor.render_edit_prediction_popover(
9926 &text_hitbox.bounds,
9927 content_origin,
9928 right_margin,
9929 &snapshot,
9930 start_row..end_row,
9931 scroll_position.y,
9932 scroll_position.y + height_in_lines,
9933 &line_layouts,
9934 line_height,
9935 scroll_position,
9936 scroll_pixel_position,
9937 newest_selection_head,
9938 editor_width,
9939 style,
9940 window,
9941 cx,
9942 )
9943 })
9944 .unzip();
9945
9946 let mut inline_diagnostics = self.layout_inline_diagnostics(
9947 &line_layouts,
9948 &crease_trailers,
9949 &row_block_types,
9950 content_origin,
9951 scroll_position,
9952 scroll_pixel_position,
9953 edit_prediction_popover_origin,
9954 start_row,
9955 end_row,
9956 line_height,
9957 em_width,
9958 style,
9959 window,
9960 cx,
9961 );
9962
9963 let mut inline_blame_layout = None;
9964 let mut inline_code_actions = None;
9965 if let Some(newest_selection_head) = newest_selection_head {
9966 let display_row = newest_selection_head.row();
9967 if (start_row..end_row).contains(&display_row)
9968 && !row_block_types.contains_key(&display_row)
9969 {
9970 inline_code_actions = self.layout_inline_code_actions(
9971 newest_selection_head,
9972 content_origin,
9973 scroll_position,
9974 scroll_pixel_position,
9975 line_height,
9976 &snapshot,
9977 window,
9978 cx,
9979 );
9980
9981 let line_ix = display_row.minus(start_row) as usize;
9982 if let (Some(row_info), Some(line_layout), Some(crease_trailer)) = (
9983 row_infos.get(line_ix),
9984 line_layouts.get(line_ix),
9985 crease_trailers.get(line_ix),
9986 ) {
9987 let crease_trailer_layout = crease_trailer.as_ref();
9988 if let Some(layout) = self.layout_inline_blame(
9989 display_row,
9990 row_info,
9991 line_layout,
9992 crease_trailer_layout,
9993 em_width,
9994 content_origin,
9995 scroll_position,
9996 scroll_pixel_position,
9997 line_height,
9998 window,
9999 cx,
10000 ) {
10001 inline_blame_layout = Some(layout);
10002 // Blame overrides inline diagnostics
10003 inline_diagnostics.remove(&display_row);
10004 }
10005 } else {
10006 log::error!(
10007 "bug: line_ix {} is out of bounds - row_infos.len(): {}, \
10008 line_layouts.len(): {}, \
10009 crease_trailers.len(): {}",
10010 line_ix,
10011 row_infos.len(),
10012 line_layouts.len(),
10013 crease_trailers.len(),
10014 );
10015 }
10016 }
10017 }
10018
10019 let blamed_display_rows = self.layout_blame_entries(
10020 &row_infos,
10021 em_width,
10022 scroll_position,
10023 line_height,
10024 &gutter_hitbox,
10025 gutter_dimensions.git_blame_entries_width,
10026 window,
10027 cx,
10028 );
10029
10030 let line_elements = self.prepaint_lines(
10031 start_row,
10032 &mut line_layouts,
10033 line_height,
10034 scroll_position,
10035 scroll_pixel_position,
10036 content_origin,
10037 window,
10038 cx,
10039 );
10040
10041 window.with_element_namespace("blocks", |window| {
10042 self.layout_blocks(
10043 &mut blocks,
10044 &hitbox,
10045 line_height,
10046 scroll_position,
10047 scroll_pixel_position,
10048 window,
10049 cx,
10050 );
10051 });
10052
10053 let cursors = self.collect_cursors(&snapshot, cx);
10054 let visible_row_range = start_row..end_row;
10055 let non_visible_cursors = cursors
10056 .iter()
10057 .any(|c| !visible_row_range.contains(&c.0.row()));
10058
10059 let visible_cursors = self.layout_visible_cursors(
10060 &snapshot,
10061 &selections,
10062 &row_block_types,
10063 start_row..end_row,
10064 &line_layouts,
10065 &text_hitbox,
10066 content_origin,
10067 scroll_position,
10068 scroll_pixel_position,
10069 line_height,
10070 em_width,
10071 em_advance,
10072 autoscroll_containing_element,
10073 window,
10074 cx,
10075 );
10076
10077 let scrollbars_layout = self.layout_scrollbars(
10078 &snapshot,
10079 &scrollbar_layout_information,
10080 content_offset,
10081 scroll_position,
10082 non_visible_cursors,
10083 right_margin,
10084 editor_width,
10085 window,
10086 cx,
10087 );
10088
10089 let gutter_settings = EditorSettings::get_global(cx).gutter;
10090
10091 let context_menu_layout =
10092 if let Some(newest_selection_head) = newest_selection_head {
10093 let newest_selection_point =
10094 newest_selection_head.to_point(&snapshot.display_snapshot);
10095 if (start_row..end_row).contains(&newest_selection_head.row()) {
10096 self.layout_cursor_popovers(
10097 line_height,
10098 &text_hitbox,
10099 content_origin,
10100 right_margin,
10101 start_row,
10102 scroll_pixel_position,
10103 &line_layouts,
10104 newest_selection_head,
10105 newest_selection_point,
10106 style,
10107 window,
10108 cx,
10109 )
10110 } else {
10111 None
10112 }
10113 } else {
10114 None
10115 };
10116
10117 self.layout_gutter_menu(
10118 line_height,
10119 &text_hitbox,
10120 content_origin,
10121 right_margin,
10122 scroll_pixel_position,
10123 gutter_dimensions.width - gutter_dimensions.left_padding,
10124 window,
10125 cx,
10126 );
10127
10128 let test_indicators = if gutter_settings.runnables {
10129 self.layout_run_indicators(
10130 line_height,
10131 start_row..end_row,
10132 &row_infos,
10133 scroll_position,
10134 &gutter_dimensions,
10135 &gutter_hitbox,
10136 &display_hunks,
10137 &snapshot,
10138 &mut breakpoint_rows,
10139 window,
10140 cx,
10141 )
10142 } else {
10143 Vec::new()
10144 };
10145
10146 let show_breakpoints = snapshot
10147 .show_breakpoints
10148 .unwrap_or(gutter_settings.breakpoints);
10149 let breakpoints = if show_breakpoints {
10150 self.layout_breakpoints(
10151 line_height,
10152 start_row..end_row,
10153 scroll_position,
10154 &gutter_dimensions,
10155 &gutter_hitbox,
10156 &display_hunks,
10157 &snapshot,
10158 breakpoint_rows,
10159 &row_infos,
10160 window,
10161 cx,
10162 )
10163 } else {
10164 Vec::new()
10165 };
10166
10167 self.layout_signature_help(
10168 &hitbox,
10169 content_origin,
10170 scroll_pixel_position,
10171 newest_selection_head,
10172 start_row,
10173 &line_layouts,
10174 line_height,
10175 em_width,
10176 context_menu_layout,
10177 window,
10178 cx,
10179 );
10180
10181 if !cx.has_active_drag() {
10182 self.layout_hover_popovers(
10183 &snapshot,
10184 &hitbox,
10185 start_row..end_row,
10186 content_origin,
10187 scroll_pixel_position,
10188 &line_layouts,
10189 line_height,
10190 em_width,
10191 context_menu_layout,
10192 window,
10193 cx,
10194 );
10195
10196 self.layout_blame_popover(&snapshot, &hitbox, line_height, window, cx);
10197 }
10198
10199 let mouse_context_menu = self.layout_mouse_context_menu(
10200 &snapshot,
10201 start_row..end_row,
10202 content_origin,
10203 window,
10204 cx,
10205 );
10206
10207 window.with_element_namespace("crease_toggles", |window| {
10208 self.prepaint_crease_toggles(
10209 &mut crease_toggles,
10210 line_height,
10211 &gutter_dimensions,
10212 gutter_settings,
10213 scroll_pixel_position,
10214 &gutter_hitbox,
10215 window,
10216 cx,
10217 )
10218 });
10219
10220 window.with_element_namespace("expand_toggles", |window| {
10221 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
10222 });
10223
10224 let wrap_guides = self.layout_wrap_guides(
10225 em_advance,
10226 scroll_position,
10227 content_origin,
10228 scrollbars_layout.as_ref(),
10229 vertical_scrollbar_width,
10230 &hitbox,
10231 window,
10232 cx,
10233 );
10234
10235 let minimap = window.with_element_namespace("minimap", |window| {
10236 self.layout_minimap(
10237 &snapshot,
10238 minimap_width,
10239 scroll_position,
10240 &scrollbar_layout_information,
10241 scrollbars_layout.as_ref(),
10242 window,
10243 cx,
10244 )
10245 });
10246
10247 let invisible_symbol_font_size = font_size / 2.;
10248 let whitespace_map = &self
10249 .editor
10250 .read(cx)
10251 .buffer
10252 .read(cx)
10253 .language_settings(cx)
10254 .whitespace_map;
10255
10256 let tab_char = whitespace_map.tab.clone();
10257 let tab_len = tab_char.len();
10258 let tab_invisible = window.text_system().shape_line(
10259 tab_char,
10260 invisible_symbol_font_size,
10261 &[TextRun {
10262 len: tab_len,
10263 font: self.style.text.font(),
10264 color: cx.theme().colors().editor_invisible,
10265 ..Default::default()
10266 }],
10267 None,
10268 );
10269
10270 let space_char = whitespace_map.space.clone();
10271 let space_len = space_char.len();
10272 let space_invisible = window.text_system().shape_line(
10273 space_char,
10274 invisible_symbol_font_size,
10275 &[TextRun {
10276 len: space_len,
10277 font: self.style.text.font(),
10278 color: cx.theme().colors().editor_invisible,
10279 ..Default::default()
10280 }],
10281 None,
10282 );
10283
10284 let mode = snapshot.mode.clone();
10285
10286 let (diff_hunk_controls, diff_hunk_control_bounds) = if is_read_only {
10287 (vec![], vec![])
10288 } else {
10289 self.layout_diff_hunk_controls(
10290 start_row..end_row,
10291 &row_infos,
10292 &text_hitbox,
10293 newest_selection_head,
10294 line_height,
10295 right_margin,
10296 scroll_pixel_position,
10297 &display_hunks,
10298 &highlighted_rows,
10299 self.editor.clone(),
10300 window,
10301 cx,
10302 )
10303 };
10304
10305 let position_map = Rc::new(PositionMap {
10306 size: bounds.size,
10307 visible_row_range,
10308 scroll_position,
10309 scroll_pixel_position,
10310 scroll_max,
10311 line_layouts,
10312 line_height,
10313 em_width,
10314 em_advance,
10315 snapshot,
10316 gutter_hitbox: gutter_hitbox.clone(),
10317 text_hitbox: text_hitbox.clone(),
10318 inline_blame_bounds: inline_blame_layout
10319 .as_ref()
10320 .map(|layout| (layout.bounds, layout.buffer_id, layout.entry.clone())),
10321 display_hunks: display_hunks.clone(),
10322 diff_hunk_control_bounds,
10323 });
10324
10325 self.editor.update(cx, |editor, _| {
10326 editor.last_position_map = Some(position_map.clone())
10327 });
10328
10329 EditorLayout {
10330 mode,
10331 position_map,
10332 visible_display_row_range: start_row..end_row,
10333 wrap_guides,
10334 indent_guides,
10335 hitbox,
10336 gutter_hitbox,
10337 display_hunks,
10338 content_origin,
10339 scrollbars_layout,
10340 minimap,
10341 active_rows,
10342 highlighted_rows,
10343 highlighted_ranges,
10344 highlighted_gutter_ranges,
10345 redacted_ranges,
10346 document_colors,
10347 line_elements,
10348 line_numbers,
10349 blamed_display_rows,
10350 inline_diagnostics,
10351 inline_blame_layout,
10352 inline_code_actions,
10353 blocks,
10354 cursors,
10355 visible_cursors,
10356 selections,
10357 edit_prediction_popover,
10358 diff_hunk_controls,
10359 mouse_context_menu,
10360 test_indicators,
10361 breakpoints,
10362 crease_toggles,
10363 crease_trailers,
10364 tab_invisible,
10365 space_invisible,
10366 sticky_buffer_header,
10367 sticky_headers,
10368 expand_toggles,
10369 }
10370 })
10371 })
10372 })
10373 }
10374
10375 fn paint(
10376 &mut self,
10377 _: Option<&GlobalElementId>,
10378 _inspector_id: Option<&gpui::InspectorElementId>,
10379 bounds: Bounds<gpui::Pixels>,
10380 _: &mut Self::RequestLayoutState,
10381 layout: &mut Self::PrepaintState,
10382 window: &mut Window,
10383 cx: &mut App,
10384 ) {
10385 if !layout.mode.is_minimap() {
10386 let focus_handle = self.editor.focus_handle(cx);
10387 let key_context = self
10388 .editor
10389 .update(cx, |editor, cx| editor.key_context(window, cx));
10390
10391 window.set_key_context(key_context);
10392 window.handle_input(
10393 &focus_handle,
10394 ElementInputHandler::new(bounds, self.editor.clone()),
10395 cx,
10396 );
10397 self.register_actions(window, cx);
10398 self.register_key_listeners(window, cx, layout);
10399 }
10400
10401 let text_style = TextStyleRefinement {
10402 font_size: Some(self.style.text.font_size),
10403 line_height: Some(self.style.text.line_height),
10404 ..Default::default()
10405 };
10406 let rem_size = self.rem_size(cx);
10407 window.with_rem_size(rem_size, |window| {
10408 window.with_text_style(Some(text_style), |window| {
10409 window.with_content_mask(Some(ContentMask { bounds }), |window| {
10410 self.paint_mouse_listeners(layout, window, cx);
10411 self.paint_background(layout, window, cx);
10412 self.paint_indent_guides(layout, window, cx);
10413
10414 if layout.gutter_hitbox.size.width > Pixels::ZERO {
10415 self.paint_blamed_display_rows(layout, window, cx);
10416 self.paint_line_numbers(layout, window, cx);
10417 }
10418
10419 self.paint_text(layout, window, cx);
10420
10421 if layout.gutter_hitbox.size.width > Pixels::ZERO {
10422 self.paint_gutter_highlights(layout, window, cx);
10423 self.paint_gutter_indicators(layout, window, cx);
10424 }
10425
10426 if !layout.blocks.is_empty() {
10427 window.with_element_namespace("blocks", |window| {
10428 self.paint_blocks(layout, window, cx);
10429 });
10430 }
10431
10432 window.with_element_namespace("blocks", |window| {
10433 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
10434 sticky_header.paint(window, cx)
10435 }
10436 });
10437
10438 self.paint_sticky_headers(layout, window, cx);
10439 self.paint_minimap(layout, window, cx);
10440 self.paint_scrollbars(layout, window, cx);
10441 self.paint_edit_prediction_popover(layout, window, cx);
10442 self.paint_mouse_context_menu(layout, window, cx);
10443 });
10444 })
10445 })
10446 }
10447}
10448
10449pub(super) fn gutter_bounds(
10450 editor_bounds: Bounds<Pixels>,
10451 gutter_dimensions: GutterDimensions,
10452) -> Bounds<Pixels> {
10453 Bounds {
10454 origin: editor_bounds.origin,
10455 size: size(gutter_dimensions.width, editor_bounds.size.height),
10456 }
10457}
10458
10459#[derive(Clone, Copy)]
10460struct ContextMenuLayout {
10461 y_flipped: bool,
10462 bounds: Bounds<Pixels>,
10463}
10464
10465/// Holds information required for layouting the editor scrollbars.
10466struct ScrollbarLayoutInformation {
10467 /// The bounds of the editor area (excluding the content offset).
10468 editor_bounds: Bounds<Pixels>,
10469 /// The available range to scroll within the document.
10470 scroll_range: Size<Pixels>,
10471 /// The space available for one glyph in the editor.
10472 glyph_grid_cell: Size<Pixels>,
10473}
10474
10475impl ScrollbarLayoutInformation {
10476 pub fn new(
10477 editor_bounds: Bounds<Pixels>,
10478 glyph_grid_cell: Size<Pixels>,
10479 document_size: Size<Pixels>,
10480 longest_line_blame_width: Pixels,
10481 settings: &EditorSettings,
10482 ) -> Self {
10483 let vertical_overscroll = match settings.scroll_beyond_last_line {
10484 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
10485 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
10486 ScrollBeyondLastLine::VerticalScrollMargin => {
10487 (1.0 + settings.vertical_scroll_margin) as f32 * glyph_grid_cell.height
10488 }
10489 };
10490
10491 let overscroll = size(longest_line_blame_width, vertical_overscroll);
10492
10493 ScrollbarLayoutInformation {
10494 editor_bounds,
10495 scroll_range: document_size + overscroll,
10496 glyph_grid_cell,
10497 }
10498 }
10499}
10500
10501impl IntoElement for EditorElement {
10502 type Element = Self;
10503
10504 fn into_element(self) -> Self::Element {
10505 self
10506 }
10507}
10508
10509pub struct EditorLayout {
10510 position_map: Rc<PositionMap>,
10511 hitbox: Hitbox,
10512 gutter_hitbox: Hitbox,
10513 content_origin: gpui::Point<Pixels>,
10514 scrollbars_layout: Option<EditorScrollbars>,
10515 minimap: Option<MinimapLayout>,
10516 mode: EditorMode,
10517 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
10518 indent_guides: Option<Vec<IndentGuideLayout>>,
10519 visible_display_row_range: Range<DisplayRow>,
10520 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
10521 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
10522 line_elements: SmallVec<[AnyElement; 1]>,
10523 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
10524 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
10525 blamed_display_rows: Option<Vec<AnyElement>>,
10526 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
10527 inline_blame_layout: Option<InlineBlameLayout>,
10528 inline_code_actions: Option<AnyElement>,
10529 blocks: Vec<BlockLayout>,
10530 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
10531 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
10532 redacted_ranges: Vec<Range<DisplayPoint>>,
10533 cursors: Vec<(DisplayPoint, Hsla)>,
10534 visible_cursors: Vec<CursorLayout>,
10535 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
10536 test_indicators: Vec<AnyElement>,
10537 breakpoints: Vec<AnyElement>,
10538 crease_toggles: Vec<Option<AnyElement>>,
10539 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
10540 diff_hunk_controls: Vec<AnyElement>,
10541 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
10542 edit_prediction_popover: Option<AnyElement>,
10543 mouse_context_menu: Option<AnyElement>,
10544 tab_invisible: ShapedLine,
10545 space_invisible: ShapedLine,
10546 sticky_buffer_header: Option<AnyElement>,
10547 sticky_headers: Option<StickyHeaders>,
10548 document_colors: Option<(DocumentColorsRenderMode, Vec<(Range<DisplayPoint>, Hsla)>)>,
10549}
10550
10551struct StickyHeaders {
10552 lines: Vec<StickyHeaderLine>,
10553 gutter_background: Hsla,
10554 content_background: Hsla,
10555 gutter_right_padding: Pixels,
10556}
10557
10558struct StickyHeaderLine {
10559 row: DisplayRow,
10560 offset: Pixels,
10561 line: LineWithInvisibles,
10562 line_number: Option<ShapedLine>,
10563 elements: SmallVec<[AnyElement; 1]>,
10564 available_text_width: Pixels,
10565 target_anchor: Anchor,
10566 hitbox: Hitbox,
10567}
10568
10569impl EditorLayout {
10570 fn line_end_overshoot(&self) -> Pixels {
10571 0.15 * self.position_map.line_height
10572 }
10573}
10574
10575impl StickyHeaders {
10576 fn paint(
10577 &mut self,
10578 layout: &mut EditorLayout,
10579 whitespace_setting: ShowWhitespaceSetting,
10580 window: &mut Window,
10581 cx: &mut App,
10582 ) {
10583 let line_height = layout.position_map.line_height;
10584
10585 for line in self.lines.iter_mut().rev() {
10586 window.paint_layer(
10587 Bounds::new(
10588 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
10589 size(line.hitbox.size.width, line_height),
10590 ),
10591 |window| {
10592 let gutter_bounds = Bounds::new(
10593 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
10594 size(layout.gutter_hitbox.size.width, line_height),
10595 );
10596 window.paint_quad(fill(gutter_bounds, self.gutter_background));
10597
10598 let text_bounds = Bounds::new(
10599 layout.position_map.text_hitbox.origin + point(Pixels::ZERO, line.offset),
10600 size(line.available_text_width, line_height),
10601 );
10602 window.paint_quad(fill(text_bounds, self.content_background));
10603
10604 if line.hitbox.is_hovered(window) {
10605 let hover_overlay = cx.theme().colors().panel_overlay_hover;
10606 window.paint_quad(fill(gutter_bounds, hover_overlay));
10607 window.paint_quad(fill(text_bounds, hover_overlay));
10608 }
10609
10610 line.paint(
10611 layout,
10612 self.gutter_right_padding,
10613 line.available_text_width,
10614 layout.content_origin,
10615 line_height,
10616 whitespace_setting,
10617 window,
10618 cx,
10619 );
10620 },
10621 );
10622
10623 window.set_cursor_style(CursorStyle::PointingHand, &line.hitbox);
10624 }
10625 }
10626}
10627
10628impl StickyHeaderLine {
10629 fn new(
10630 row: DisplayRow,
10631 offset: Pixels,
10632 mut line: LineWithInvisibles,
10633 line_number: Option<ShapedLine>,
10634 target_anchor: Anchor,
10635 line_height: Pixels,
10636 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
10637 content_origin: gpui::Point<Pixels>,
10638 gutter_hitbox: &Hitbox,
10639 text_hitbox: &Hitbox,
10640 window: &mut Window,
10641 cx: &mut App,
10642 ) -> Self {
10643 let mut elements = SmallVec::<[AnyElement; 1]>::new();
10644 line.prepaint_with_custom_offset(
10645 line_height,
10646 scroll_pixel_position,
10647 content_origin,
10648 offset,
10649 &mut elements,
10650 window,
10651 cx,
10652 );
10653
10654 let hitbox_bounds = Bounds::new(
10655 gutter_hitbox.origin + point(Pixels::ZERO, offset),
10656 size(text_hitbox.right() - gutter_hitbox.left(), line_height),
10657 );
10658 let available_text_width =
10659 (hitbox_bounds.size.width - gutter_hitbox.size.width).max(Pixels::ZERO);
10660
10661 Self {
10662 row,
10663 offset,
10664 line,
10665 line_number,
10666 elements,
10667 available_text_width,
10668 target_anchor,
10669 hitbox: window.insert_hitbox(hitbox_bounds, HitboxBehavior::BlockMouseExceptScroll),
10670 }
10671 }
10672
10673 fn paint(
10674 &mut self,
10675 layout: &EditorLayout,
10676 gutter_right_padding: Pixels,
10677 available_text_width: Pixels,
10678 content_origin: gpui::Point<Pixels>,
10679 line_height: Pixels,
10680 whitespace_setting: ShowWhitespaceSetting,
10681 window: &mut Window,
10682 cx: &mut App,
10683 ) {
10684 window.with_content_mask(
10685 Some(ContentMask {
10686 bounds: Bounds::new(
10687 layout.position_map.text_hitbox.bounds.origin
10688 + point(Pixels::ZERO, self.offset),
10689 size(available_text_width, line_height),
10690 ),
10691 }),
10692 |window| {
10693 self.line.draw_with_custom_offset(
10694 layout,
10695 self.row,
10696 content_origin,
10697 self.offset,
10698 whitespace_setting,
10699 &[],
10700 window,
10701 cx,
10702 );
10703 for element in &mut self.elements {
10704 element.paint(window, cx);
10705 }
10706 },
10707 );
10708
10709 if let Some(line_number) = &self.line_number {
10710 let gutter_origin = layout.gutter_hitbox.origin + point(Pixels::ZERO, self.offset);
10711 let gutter_width = layout.gutter_hitbox.size.width;
10712 let origin = point(
10713 gutter_origin.x + gutter_width - gutter_right_padding - line_number.width,
10714 gutter_origin.y,
10715 );
10716 line_number.paint(origin, line_height, window, cx).log_err();
10717 }
10718 }
10719}
10720
10721#[derive(Debug)]
10722struct LineNumberSegment {
10723 shaped_line: ShapedLine,
10724 hitbox: Option<Hitbox>,
10725}
10726
10727#[derive(Debug)]
10728struct LineNumberLayout {
10729 segments: SmallVec<[LineNumberSegment; 1]>,
10730}
10731
10732struct ColoredRange<T> {
10733 start: T,
10734 end: T,
10735 color: Hsla,
10736}
10737
10738impl Along for ScrollbarAxes {
10739 type Unit = bool;
10740
10741 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
10742 match axis {
10743 ScrollbarAxis::Horizontal => self.horizontal,
10744 ScrollbarAxis::Vertical => self.vertical,
10745 }
10746 }
10747
10748 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
10749 match axis {
10750 ScrollbarAxis::Horizontal => ScrollbarAxes {
10751 horizontal: f(self.horizontal),
10752 vertical: self.vertical,
10753 },
10754 ScrollbarAxis::Vertical => ScrollbarAxes {
10755 horizontal: self.horizontal,
10756 vertical: f(self.vertical),
10757 },
10758 }
10759 }
10760}
10761
10762#[derive(Clone)]
10763struct EditorScrollbars {
10764 pub vertical: Option<ScrollbarLayout>,
10765 pub horizontal: Option<ScrollbarLayout>,
10766 pub visible: bool,
10767}
10768
10769impl EditorScrollbars {
10770 pub fn from_scrollbar_axes(
10771 show_scrollbar: ScrollbarAxes,
10772 layout_information: &ScrollbarLayoutInformation,
10773 content_offset: gpui::Point<Pixels>,
10774 scroll_position: gpui::Point<f64>,
10775 scrollbar_width: Pixels,
10776 right_margin: Pixels,
10777 editor_width: Pixels,
10778 show_scrollbars: bool,
10779 scrollbar_state: Option<&ActiveScrollbarState>,
10780 window: &mut Window,
10781 ) -> Self {
10782 let ScrollbarLayoutInformation {
10783 editor_bounds,
10784 scroll_range,
10785 glyph_grid_cell,
10786 } = layout_information;
10787
10788 let viewport_size = size(editor_width, editor_bounds.size.height);
10789
10790 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
10791 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
10792 Corner::BottomLeft,
10793 editor_bounds.bottom_left(),
10794 size(
10795 // The horizontal viewport size differs from the space available for the
10796 // horizontal scrollbar, so we have to manually stitch it together here.
10797 editor_bounds.size.width - right_margin,
10798 scrollbar_width,
10799 ),
10800 ),
10801 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
10802 Corner::TopRight,
10803 editor_bounds.top_right(),
10804 size(scrollbar_width, viewport_size.height),
10805 ),
10806 };
10807
10808 let mut create_scrollbar_layout = |axis| {
10809 let viewport_size = viewport_size.along(axis);
10810 let scroll_range = scroll_range.along(axis);
10811
10812 // We always want a vertical scrollbar track for scrollbar diagnostic visibility.
10813 (show_scrollbar.along(axis)
10814 && (axis == ScrollbarAxis::Vertical || scroll_range > viewport_size))
10815 .then(|| {
10816 ScrollbarLayout::new(
10817 window.insert_hitbox(scrollbar_bounds_for(axis), HitboxBehavior::Normal),
10818 viewport_size,
10819 scroll_range,
10820 glyph_grid_cell.along(axis),
10821 content_offset.along(axis),
10822 scroll_position.along(axis),
10823 show_scrollbars,
10824 axis,
10825 )
10826 .with_thumb_state(
10827 scrollbar_state.and_then(|state| state.thumb_state_for_axis(axis)),
10828 )
10829 })
10830 };
10831
10832 Self {
10833 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
10834 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
10835 visible: show_scrollbars,
10836 }
10837 }
10838
10839 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
10840 [
10841 (&self.vertical, ScrollbarAxis::Vertical),
10842 (&self.horizontal, ScrollbarAxis::Horizontal),
10843 ]
10844 .into_iter()
10845 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
10846 }
10847
10848 /// Returns the currently hovered scrollbar axis, if any.
10849 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
10850 self.iter_scrollbars()
10851 .find(|s| s.0.hitbox.is_hovered(window))
10852 }
10853}
10854
10855#[derive(Clone)]
10856struct ScrollbarLayout {
10857 hitbox: Hitbox,
10858 visible_range: Range<ScrollOffset>,
10859 text_unit_size: Pixels,
10860 thumb_bounds: Option<Bounds<Pixels>>,
10861 thumb_state: ScrollbarThumbState,
10862}
10863
10864impl ScrollbarLayout {
10865 const BORDER_WIDTH: Pixels = px(1.0);
10866 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
10867 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
10868 const MIN_THUMB_SIZE: Pixels = px(25.0);
10869
10870 fn new(
10871 scrollbar_track_hitbox: Hitbox,
10872 viewport_size: Pixels,
10873 scroll_range: Pixels,
10874 glyph_space: Pixels,
10875 content_offset: Pixels,
10876 scroll_position: ScrollOffset,
10877 show_thumb: bool,
10878 axis: ScrollbarAxis,
10879 ) -> Self {
10880 let track_bounds = scrollbar_track_hitbox.bounds;
10881 // The length of the track available to the scrollbar thumb. We deliberately
10882 // exclude the content size here so that the thumb aligns with the content.
10883 let track_length = track_bounds.size.along(axis) - content_offset;
10884
10885 Self::new_with_hitbox_and_track_length(
10886 scrollbar_track_hitbox,
10887 track_length,
10888 viewport_size,
10889 scroll_range.into(),
10890 glyph_space,
10891 content_offset.into(),
10892 scroll_position,
10893 show_thumb,
10894 axis,
10895 )
10896 }
10897
10898 fn for_minimap(
10899 minimap_track_hitbox: Hitbox,
10900 visible_lines: f64,
10901 total_editor_lines: f64,
10902 minimap_line_height: Pixels,
10903 scroll_position: ScrollOffset,
10904 minimap_scroll_top: ScrollOffset,
10905 show_thumb: bool,
10906 ) -> Self {
10907 // The scrollbar thumb size is calculated as
10908 // (visible_content/total_content) Γ scrollbar_track_length.
10909 //
10910 // For the minimap's thumb layout, we leverage this by setting the
10911 // scrollbar track length to the entire document size (using minimap line
10912 // height). This creates a thumb that exactly represents the editor
10913 // viewport scaled to minimap proportions.
10914 //
10915 // We adjust the thumb position relative to `minimap_scroll_top` to
10916 // accommodate for the deliberately oversized track.
10917 //
10918 // This approach ensures that the minimap thumb accurately reflects the
10919 // editor's current scroll position whilst nicely synchronizing the minimap
10920 // thumb and scrollbar thumb.
10921 let scroll_range = total_editor_lines * f64::from(minimap_line_height);
10922 let viewport_size = visible_lines * f64::from(minimap_line_height);
10923
10924 let track_top_offset = -minimap_scroll_top * f64::from(minimap_line_height);
10925
10926 Self::new_with_hitbox_and_track_length(
10927 minimap_track_hitbox,
10928 Pixels::from(scroll_range),
10929 Pixels::from(viewport_size),
10930 scroll_range,
10931 minimap_line_height,
10932 track_top_offset,
10933 scroll_position,
10934 show_thumb,
10935 ScrollbarAxis::Vertical,
10936 )
10937 }
10938
10939 fn new_with_hitbox_and_track_length(
10940 scrollbar_track_hitbox: Hitbox,
10941 track_length: Pixels,
10942 viewport_size: Pixels,
10943 scroll_range: f64,
10944 glyph_space: Pixels,
10945 content_offset: ScrollOffset,
10946 scroll_position: ScrollOffset,
10947 show_thumb: bool,
10948 axis: ScrollbarAxis,
10949 ) -> Self {
10950 let text_units_per_page = viewport_size.to_f64() / glyph_space.to_f64();
10951 let visible_range = scroll_position..scroll_position + text_units_per_page;
10952 let total_text_units = scroll_range / glyph_space.to_f64();
10953
10954 let thumb_percentage = text_units_per_page / total_text_units;
10955 let thumb_size = Pixels::from(ScrollOffset::from(track_length) * thumb_percentage)
10956 .max(ScrollbarLayout::MIN_THUMB_SIZE)
10957 .min(track_length);
10958
10959 let text_unit_divisor = (total_text_units - text_units_per_page).max(0.);
10960
10961 let content_larger_than_viewport = text_unit_divisor > 0.;
10962
10963 let text_unit_size = if content_larger_than_viewport {
10964 Pixels::from(ScrollOffset::from(track_length - thumb_size) / text_unit_divisor)
10965 } else {
10966 glyph_space
10967 };
10968
10969 let thumb_bounds = (show_thumb && content_larger_than_viewport).then(|| {
10970 Self::thumb_bounds(
10971 &scrollbar_track_hitbox,
10972 content_offset,
10973 visible_range.start,
10974 text_unit_size,
10975 thumb_size,
10976 axis,
10977 )
10978 });
10979
10980 ScrollbarLayout {
10981 hitbox: scrollbar_track_hitbox,
10982 visible_range,
10983 text_unit_size,
10984 thumb_bounds,
10985 thumb_state: Default::default(),
10986 }
10987 }
10988
10989 fn with_thumb_state(self, thumb_state: Option<ScrollbarThumbState>) -> Self {
10990 if let Some(thumb_state) = thumb_state {
10991 Self {
10992 thumb_state,
10993 ..self
10994 }
10995 } else {
10996 self
10997 }
10998 }
10999
11000 fn thumb_bounds(
11001 scrollbar_track: &Hitbox,
11002 content_offset: f64,
11003 visible_range_start: f64,
11004 text_unit_size: Pixels,
11005 thumb_size: Pixels,
11006 axis: ScrollbarAxis,
11007 ) -> Bounds<Pixels> {
11008 let thumb_origin = scrollbar_track.origin.apply_along(axis, |origin| {
11009 origin
11010 + Pixels::from(
11011 content_offset + visible_range_start * ScrollOffset::from(text_unit_size),
11012 )
11013 });
11014 Bounds::new(
11015 thumb_origin,
11016 scrollbar_track.size.apply_along(axis, |_| thumb_size),
11017 )
11018 }
11019
11020 fn thumb_hovered(&self, position: &gpui::Point<Pixels>) -> bool {
11021 self.thumb_bounds
11022 .is_some_and(|bounds| bounds.contains(position))
11023 }
11024
11025 fn marker_quads_for_ranges(
11026 &self,
11027 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
11028 column: Option<usize>,
11029 ) -> Vec<PaintQuad> {
11030 struct MinMax {
11031 min: Pixels,
11032 max: Pixels,
11033 }
11034 let (x_range, height_limit) = if let Some(column) = column {
11035 let column_width = ((self.hitbox.size.width - Self::BORDER_WIDTH) / 3.0).floor();
11036 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
11037 let end = start + column_width;
11038 (
11039 Range { start, end },
11040 MinMax {
11041 min: Self::MIN_MARKER_HEIGHT,
11042 max: px(f32::MAX),
11043 },
11044 )
11045 } else {
11046 (
11047 Range {
11048 start: Self::BORDER_WIDTH,
11049 end: self.hitbox.size.width,
11050 },
11051 MinMax {
11052 min: Self::LINE_MARKER_HEIGHT,
11053 max: Self::LINE_MARKER_HEIGHT,
11054 },
11055 )
11056 };
11057
11058 let row_to_y = |row: DisplayRow| row.as_f64() as f32 * self.text_unit_size;
11059 let mut pixel_ranges = row_ranges
11060 .into_iter()
11061 .map(|range| {
11062 let start_y = row_to_y(range.start);
11063 let end_y = row_to_y(range.end)
11064 + self
11065 .text_unit_size
11066 .max(height_limit.min)
11067 .min(height_limit.max);
11068 ColoredRange {
11069 start: start_y,
11070 end: end_y,
11071 color: range.color,
11072 }
11073 })
11074 .peekable();
11075
11076 let mut quads = Vec::new();
11077 while let Some(mut pixel_range) = pixel_ranges.next() {
11078 while let Some(next_pixel_range) = pixel_ranges.peek() {
11079 if pixel_range.end >= next_pixel_range.start - px(1.0)
11080 && pixel_range.color == next_pixel_range.color
11081 {
11082 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
11083 pixel_ranges.next();
11084 } else {
11085 break;
11086 }
11087 }
11088
11089 let bounds = Bounds::from_corners(
11090 point(x_range.start, pixel_range.start),
11091 point(x_range.end, pixel_range.end),
11092 );
11093 quads.push(quad(
11094 bounds,
11095 Corners::default(),
11096 pixel_range.color,
11097 Edges::default(),
11098 Hsla::transparent_black(),
11099 BorderStyle::default(),
11100 ));
11101 }
11102
11103 quads
11104 }
11105}
11106
11107struct MinimapLayout {
11108 pub minimap: AnyElement,
11109 pub thumb_layout: ScrollbarLayout,
11110 pub minimap_scroll_top: ScrollOffset,
11111 pub minimap_line_height: Pixels,
11112 pub thumb_border_style: MinimapThumbBorder,
11113 pub max_scroll_top: ScrollOffset,
11114}
11115
11116impl MinimapLayout {
11117 /// The minimum width of the minimap in columns. If the minimap is smaller than this, it will be hidden.
11118 const MINIMAP_MIN_WIDTH_COLUMNS: f32 = 20.;
11119 /// The minimap width as a percentage of the editor width.
11120 const MINIMAP_WIDTH_PCT: f32 = 0.15;
11121 /// Calculates the scroll top offset the minimap editor has to have based on the
11122 /// current scroll progress.
11123 fn calculate_minimap_top_offset(
11124 document_lines: f64,
11125 visible_editor_lines: f64,
11126 visible_minimap_lines: f64,
11127 scroll_position: f64,
11128 ) -> ScrollOffset {
11129 let non_visible_document_lines = (document_lines - visible_editor_lines).max(0.);
11130 if non_visible_document_lines == 0. {
11131 0.
11132 } else {
11133 let scroll_percentage = (scroll_position / non_visible_document_lines).clamp(0., 1.);
11134 scroll_percentage * (document_lines - visible_minimap_lines).max(0.)
11135 }
11136 }
11137}
11138
11139struct CreaseTrailerLayout {
11140 element: AnyElement,
11141 bounds: Bounds<Pixels>,
11142}
11143
11144pub(crate) struct PositionMap {
11145 pub size: Size<Pixels>,
11146 pub line_height: Pixels,
11147 pub scroll_position: gpui::Point<ScrollOffset>,
11148 pub scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
11149 pub scroll_max: gpui::Point<ScrollOffset>,
11150 pub em_width: Pixels,
11151 pub em_advance: Pixels,
11152 pub visible_row_range: Range<DisplayRow>,
11153 pub line_layouts: Vec<LineWithInvisibles>,
11154 pub snapshot: EditorSnapshot,
11155 pub text_hitbox: Hitbox,
11156 pub gutter_hitbox: Hitbox,
11157 pub inline_blame_bounds: Option<(Bounds<Pixels>, BufferId, BlameEntry)>,
11158 pub display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
11159 pub diff_hunk_control_bounds: Vec<(DisplayRow, Bounds<Pixels>)>,
11160}
11161
11162#[derive(Debug, Copy, Clone)]
11163pub struct PointForPosition {
11164 pub previous_valid: DisplayPoint,
11165 pub next_valid: DisplayPoint,
11166 pub exact_unclipped: DisplayPoint,
11167 pub column_overshoot_after_line_end: u32,
11168}
11169
11170impl PointForPosition {
11171 pub fn as_valid(&self) -> Option<DisplayPoint> {
11172 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
11173 Some(self.previous_valid)
11174 } else {
11175 None
11176 }
11177 }
11178
11179 pub fn intersects_selection(&self, selection: &Selection<DisplayPoint>) -> bool {
11180 let Some(valid_point) = self.as_valid() else {
11181 return false;
11182 };
11183 let range = selection.range();
11184
11185 let candidate_row = valid_point.row();
11186 let candidate_col = valid_point.column();
11187
11188 let start_row = range.start.row();
11189 let start_col = range.start.column();
11190 let end_row = range.end.row();
11191 let end_col = range.end.column();
11192
11193 if candidate_row < start_row || candidate_row > end_row {
11194 false
11195 } else if start_row == end_row {
11196 candidate_col >= start_col && candidate_col < end_col
11197 } else if candidate_row == start_row {
11198 candidate_col >= start_col
11199 } else if candidate_row == end_row {
11200 candidate_col < end_col
11201 } else {
11202 true
11203 }
11204 }
11205}
11206
11207impl PositionMap {
11208 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
11209 let text_bounds = self.text_hitbox.bounds;
11210 let scroll_position = self.snapshot.scroll_position();
11211 let position = position - text_bounds.origin;
11212 let y = position.y.max(px(0.)).min(self.size.height);
11213 let x = position.x + (scroll_position.x as f32 * self.em_advance);
11214 let row = ((y / self.line_height) as f64 + scroll_position.y) as u32;
11215
11216 let (column, x_overshoot_after_line_end) = if let Some(line) = self
11217 .line_layouts
11218 .get(row as usize - scroll_position.y as usize)
11219 {
11220 if let Some(ix) = line.index_for_x(x) {
11221 (ix as u32, px(0.))
11222 } else {
11223 (line.len as u32, px(0.).max(x - line.width))
11224 }
11225 } else {
11226 (0, x)
11227 };
11228
11229 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
11230 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
11231 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
11232
11233 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
11234 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
11235 PointForPosition {
11236 previous_valid,
11237 next_valid,
11238 exact_unclipped,
11239 column_overshoot_after_line_end,
11240 }
11241 }
11242}
11243
11244struct BlockLayout {
11245 id: BlockId,
11246 x_offset: Pixels,
11247 row: Option<DisplayRow>,
11248 element: AnyElement,
11249 available_space: Size<AvailableSpace>,
11250 style: BlockStyle,
11251 overlaps_gutter: bool,
11252 is_buffer_header: bool,
11253}
11254
11255pub fn layout_line(
11256 row: DisplayRow,
11257 snapshot: &EditorSnapshot,
11258 style: &EditorStyle,
11259 text_width: Pixels,
11260 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
11261 window: &mut Window,
11262 cx: &mut App,
11263) -> LineWithInvisibles {
11264 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
11265 LineWithInvisibles::from_chunks(
11266 chunks,
11267 style,
11268 MAX_LINE_LEN,
11269 1,
11270 &snapshot.mode,
11271 text_width,
11272 is_row_soft_wrapped,
11273 &[],
11274 window,
11275 cx,
11276 )
11277 .pop()
11278 .unwrap()
11279}
11280
11281#[derive(Debug)]
11282pub struct IndentGuideLayout {
11283 origin: gpui::Point<Pixels>,
11284 length: Pixels,
11285 single_indent_width: Pixels,
11286 depth: u32,
11287 active: bool,
11288 settings: IndentGuideSettings,
11289}
11290
11291pub struct CursorLayout {
11292 origin: gpui::Point<Pixels>,
11293 block_width: Pixels,
11294 line_height: Pixels,
11295 color: Hsla,
11296 shape: CursorShape,
11297 block_text: Option<ShapedLine>,
11298 cursor_name: Option<AnyElement>,
11299}
11300
11301#[derive(Debug)]
11302pub struct CursorName {
11303 string: SharedString,
11304 color: Hsla,
11305 is_top_row: bool,
11306}
11307
11308impl CursorLayout {
11309 pub fn new(
11310 origin: gpui::Point<Pixels>,
11311 block_width: Pixels,
11312 line_height: Pixels,
11313 color: Hsla,
11314 shape: CursorShape,
11315 block_text: Option<ShapedLine>,
11316 ) -> CursorLayout {
11317 CursorLayout {
11318 origin,
11319 block_width,
11320 line_height,
11321 color,
11322 shape,
11323 block_text,
11324 cursor_name: None,
11325 }
11326 }
11327
11328 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
11329 Bounds {
11330 origin: self.origin + origin,
11331 size: size(self.block_width, self.line_height),
11332 }
11333 }
11334
11335 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
11336 match self.shape {
11337 CursorShape::Bar => Bounds {
11338 origin: self.origin + origin,
11339 size: size(px(2.0), self.line_height),
11340 },
11341 CursorShape::Block | CursorShape::Hollow => Bounds {
11342 origin: self.origin + origin,
11343 size: size(self.block_width, self.line_height),
11344 },
11345 CursorShape::Underline => Bounds {
11346 origin: self.origin
11347 + origin
11348 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
11349 size: size(self.block_width, px(2.0)),
11350 },
11351 }
11352 }
11353
11354 pub fn layout(
11355 &mut self,
11356 origin: gpui::Point<Pixels>,
11357 cursor_name: Option<CursorName>,
11358 window: &mut Window,
11359 cx: &mut App,
11360 ) {
11361 if let Some(cursor_name) = cursor_name {
11362 let bounds = self.bounds(origin);
11363 let text_size = self.line_height / 1.5;
11364
11365 let name_origin = if cursor_name.is_top_row {
11366 point(bounds.right() - px(1.), bounds.top())
11367 } else {
11368 match self.shape {
11369 CursorShape::Bar => point(
11370 bounds.right() - px(2.),
11371 bounds.top() - text_size / 2. - px(1.),
11372 ),
11373 _ => point(
11374 bounds.right() - px(1.),
11375 bounds.top() - text_size / 2. - px(1.),
11376 ),
11377 }
11378 };
11379 let mut name_element = div()
11380 .bg(self.color)
11381 .text_size(text_size)
11382 .px_0p5()
11383 .line_height(text_size + px(2.))
11384 .text_color(cursor_name.color)
11385 .child(cursor_name.string)
11386 .into_any_element();
11387
11388 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
11389
11390 self.cursor_name = Some(name_element);
11391 }
11392 }
11393
11394 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
11395 let bounds = self.bounds(origin);
11396
11397 //Draw background or border quad
11398 let cursor = if matches!(self.shape, CursorShape::Hollow) {
11399 outline(bounds, self.color, BorderStyle::Solid)
11400 } else {
11401 fill(bounds, self.color)
11402 };
11403
11404 if let Some(name) = &mut self.cursor_name {
11405 name.paint(window, cx);
11406 }
11407
11408 window.paint_quad(cursor);
11409
11410 if let Some(block_text) = &self.block_text {
11411 block_text
11412 .paint(self.origin + origin, self.line_height, window, cx)
11413 .log_err();
11414 }
11415 }
11416
11417 pub fn shape(&self) -> CursorShape {
11418 self.shape
11419 }
11420}
11421
11422#[derive(Debug)]
11423pub struct HighlightedRange {
11424 pub start_y: Pixels,
11425 pub line_height: Pixels,
11426 pub lines: Vec<HighlightedRangeLine>,
11427 pub color: Hsla,
11428 pub corner_radius: Pixels,
11429}
11430
11431#[derive(Debug)]
11432pub struct HighlightedRangeLine {
11433 pub start_x: Pixels,
11434 pub end_x: Pixels,
11435}
11436
11437impl HighlightedRange {
11438 pub fn paint(&self, fill: bool, bounds: Bounds<Pixels>, window: &mut Window) {
11439 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
11440 self.paint_lines(self.start_y, &self.lines[0..1], fill, bounds, window);
11441 self.paint_lines(
11442 self.start_y + self.line_height,
11443 &self.lines[1..],
11444 fill,
11445 bounds,
11446 window,
11447 );
11448 } else {
11449 self.paint_lines(self.start_y, &self.lines, fill, bounds, window);
11450 }
11451 }
11452
11453 fn paint_lines(
11454 &self,
11455 start_y: Pixels,
11456 lines: &[HighlightedRangeLine],
11457 fill: bool,
11458 _bounds: Bounds<Pixels>,
11459 window: &mut Window,
11460 ) {
11461 if lines.is_empty() {
11462 return;
11463 }
11464
11465 let first_line = lines.first().unwrap();
11466 let last_line = lines.last().unwrap();
11467
11468 let first_top_left = point(first_line.start_x, start_y);
11469 let first_top_right = point(first_line.end_x, start_y);
11470
11471 let curve_height = point(Pixels::ZERO, self.corner_radius);
11472 let curve_width = |start_x: Pixels, end_x: Pixels| {
11473 let max = (end_x - start_x) / 2.;
11474 let width = if max < self.corner_radius {
11475 max
11476 } else {
11477 self.corner_radius
11478 };
11479
11480 point(width, Pixels::ZERO)
11481 };
11482
11483 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
11484 let mut builder = if fill {
11485 gpui::PathBuilder::fill()
11486 } else {
11487 gpui::PathBuilder::stroke(px(1.))
11488 };
11489 builder.move_to(first_top_right - top_curve_width);
11490 builder.curve_to(first_top_right + curve_height, first_top_right);
11491
11492 let mut iter = lines.iter().enumerate().peekable();
11493 while let Some((ix, line)) = iter.next() {
11494 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
11495
11496 if let Some((_, next_line)) = iter.peek() {
11497 let next_top_right = point(next_line.end_x, bottom_right.y);
11498
11499 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
11500 Ordering::Equal => {
11501 builder.line_to(bottom_right);
11502 }
11503 Ordering::Less => {
11504 let curve_width = curve_width(next_top_right.x, bottom_right.x);
11505 builder.line_to(bottom_right - curve_height);
11506 if self.corner_radius > Pixels::ZERO {
11507 builder.curve_to(bottom_right - curve_width, bottom_right);
11508 }
11509 builder.line_to(next_top_right + curve_width);
11510 if self.corner_radius > Pixels::ZERO {
11511 builder.curve_to(next_top_right + curve_height, next_top_right);
11512 }
11513 }
11514 Ordering::Greater => {
11515 let curve_width = curve_width(bottom_right.x, next_top_right.x);
11516 builder.line_to(bottom_right - curve_height);
11517 if self.corner_radius > Pixels::ZERO {
11518 builder.curve_to(bottom_right + curve_width, bottom_right);
11519 }
11520 builder.line_to(next_top_right - curve_width);
11521 if self.corner_radius > Pixels::ZERO {
11522 builder.curve_to(next_top_right + curve_height, next_top_right);
11523 }
11524 }
11525 }
11526 } else {
11527 let curve_width = curve_width(line.start_x, line.end_x);
11528 builder.line_to(bottom_right - curve_height);
11529 if self.corner_radius > Pixels::ZERO {
11530 builder.curve_to(bottom_right - curve_width, bottom_right);
11531 }
11532
11533 let bottom_left = point(line.start_x, bottom_right.y);
11534 builder.line_to(bottom_left + curve_width);
11535 if self.corner_radius > Pixels::ZERO {
11536 builder.curve_to(bottom_left - curve_height, bottom_left);
11537 }
11538 }
11539 }
11540
11541 if first_line.start_x > last_line.start_x {
11542 let curve_width = curve_width(last_line.start_x, first_line.start_x);
11543 let second_top_left = point(last_line.start_x, start_y + self.line_height);
11544 builder.line_to(second_top_left + curve_height);
11545 if self.corner_radius > Pixels::ZERO {
11546 builder.curve_to(second_top_left + curve_width, second_top_left);
11547 }
11548 let first_bottom_left = point(first_line.start_x, second_top_left.y);
11549 builder.line_to(first_bottom_left - curve_width);
11550 if self.corner_radius > Pixels::ZERO {
11551 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
11552 }
11553 }
11554
11555 builder.line_to(first_top_left + curve_height);
11556 if self.corner_radius > Pixels::ZERO {
11557 builder.curve_to(first_top_left + top_curve_width, first_top_left);
11558 }
11559 builder.line_to(first_top_right - top_curve_width);
11560
11561 if let Ok(path) = builder.build() {
11562 window.paint_path(path, self.color);
11563 }
11564 }
11565}
11566
11567pub(crate) struct StickyHeader {
11568 pub item: language::OutlineItem<Anchor>,
11569 pub sticky_row: DisplayRow,
11570 pub start_point: Point,
11571 pub offset: ScrollOffset,
11572}
11573
11574enum CursorPopoverType {
11575 CodeContextMenu,
11576 EditPrediction,
11577}
11578
11579pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
11580 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
11581}
11582
11583fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
11584 (delta.pow(1.2) / 300.0).into()
11585}
11586
11587pub fn register_action<T: Action>(
11588 editor: &Entity<Editor>,
11589 window: &mut Window,
11590 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
11591) {
11592 let editor = editor.clone();
11593 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
11594 let action = action.downcast_ref().unwrap();
11595 if phase == DispatchPhase::Bubble {
11596 editor.update(cx, |editor, cx| {
11597 listener(editor, action, window, cx);
11598 })
11599 }
11600 })
11601}
11602
11603fn compute_auto_height_layout(
11604 editor: &mut Editor,
11605 min_lines: usize,
11606 max_lines: Option<usize>,
11607 known_dimensions: Size<Option<Pixels>>,
11608 available_width: AvailableSpace,
11609 window: &mut Window,
11610 cx: &mut Context<Editor>,
11611) -> Option<Size<Pixels>> {
11612 let width = known_dimensions.width.or({
11613 if let AvailableSpace::Definite(available_width) = available_width {
11614 Some(available_width)
11615 } else {
11616 None
11617 }
11618 })?;
11619 if let Some(height) = known_dimensions.height {
11620 return Some(size(width, height));
11621 }
11622
11623 let style = editor.style.as_ref().unwrap();
11624 let font_id = window.text_system().resolve_font(&style.text.font());
11625 let font_size = style.text.font_size.to_pixels(window.rem_size());
11626 let line_height = style.text.line_height_in_pixels(window.rem_size());
11627 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
11628
11629 let mut snapshot = editor.snapshot(window, cx);
11630 let gutter_dimensions = snapshot.gutter_dimensions(font_id, font_size, style, window, cx);
11631
11632 editor.gutter_dimensions = gutter_dimensions;
11633 let text_width = width - gutter_dimensions.width;
11634 let overscroll = size(em_width, px(0.));
11635
11636 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
11637 if !matches!(editor.soft_wrap_mode(cx), SoftWrap::None)
11638 && editor.set_wrap_width(Some(editor_width), cx)
11639 {
11640 snapshot = editor.snapshot(window, cx);
11641 }
11642
11643 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
11644
11645 let min_height = line_height * min_lines as f32;
11646 let content_height = scroll_height.max(min_height);
11647
11648 let final_height = if let Some(max_lines) = max_lines {
11649 let max_height = line_height * max_lines as f32;
11650 content_height.min(max_height)
11651 } else {
11652 content_height
11653 };
11654
11655 Some(size(width, final_height))
11656}
11657
11658#[cfg(test)]
11659mod tests {
11660 use super::*;
11661 use crate::{
11662 Editor, MultiBuffer, SelectionEffects,
11663 display_map::{BlockPlacement, BlockProperties},
11664 editor_tests::{init_test, update_test_language_settings},
11665 };
11666 use gpui::{TestAppContext, VisualTestContext};
11667 use language::language_settings;
11668 use log::info;
11669 use std::num::NonZeroU32;
11670 use util::test::sample_text;
11671 use vim_mode_setting::VimModeSetting;
11672
11673 #[gpui::test]
11674 async fn test_soft_wrap_editor_width_auto_height_editor(cx: &mut TestAppContext) {
11675 init_test(cx, |_| {});
11676
11677 let window = cx.add_window(|window, cx| {
11678 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
11679 let mut editor = Editor::new(
11680 EditorMode::AutoHeight {
11681 min_lines: 1,
11682 max_lines: None,
11683 },
11684 buffer,
11685 None,
11686 window,
11687 cx,
11688 );
11689 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
11690 editor
11691 });
11692 let cx = &mut VisualTestContext::from_window(*window, cx);
11693 let editor = window.root(cx).unwrap();
11694 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
11695
11696 for x in 1..=100 {
11697 let (_, state) = cx.draw(
11698 Default::default(),
11699 size(px(200. + 0.13 * x as f32), px(500.)),
11700 |_, _| EditorElement::new(&editor, style.clone()),
11701 );
11702
11703 assert!(
11704 state.position_map.scroll_max.x == 0.,
11705 "Soft wrapped editor should have no horizontal scrolling!"
11706 );
11707 }
11708 }
11709
11710 #[gpui::test]
11711 async fn test_soft_wrap_editor_width_full_editor(cx: &mut TestAppContext) {
11712 init_test(cx, |_| {});
11713
11714 let window = cx.add_window(|window, cx| {
11715 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
11716 let mut editor = Editor::new(EditorMode::full(), buffer, None, window, cx);
11717 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
11718 editor
11719 });
11720 let cx = &mut VisualTestContext::from_window(*window, cx);
11721 let editor = window.root(cx).unwrap();
11722 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
11723
11724 for x in 1..=100 {
11725 let (_, state) = cx.draw(
11726 Default::default(),
11727 size(px(200. + 0.13 * x as f32), px(500.)),
11728 |_, _| EditorElement::new(&editor, style.clone()),
11729 );
11730
11731 assert!(
11732 state.position_map.scroll_max.x == 0.,
11733 "Soft wrapped editor should have no horizontal scrolling!"
11734 );
11735 }
11736 }
11737
11738 #[gpui::test]
11739 fn test_shape_line_numbers(cx: &mut TestAppContext) {
11740 init_test(cx, |_| {});
11741 let window = cx.add_window(|window, cx| {
11742 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
11743 Editor::new(EditorMode::full(), buffer, None, window, cx)
11744 });
11745
11746 let editor = window.root(cx).unwrap();
11747 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
11748 let line_height = window
11749 .update(cx, |_, window, _| {
11750 style.text.line_height_in_pixels(window.rem_size())
11751 })
11752 .unwrap();
11753 let element = EditorElement::new(&editor, style);
11754 let snapshot = window
11755 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
11756 .unwrap();
11757
11758 let layouts = cx
11759 .update_window(*window, |_, window, cx| {
11760 element.layout_line_numbers(
11761 None,
11762 GutterDimensions {
11763 left_padding: Pixels::ZERO,
11764 right_padding: Pixels::ZERO,
11765 width: px(30.0),
11766 margin: Pixels::ZERO,
11767 git_blame_entries_width: None,
11768 },
11769 line_height,
11770 gpui::Point::default(),
11771 DisplayRow(0)..DisplayRow(6),
11772 &(0..6)
11773 .map(|row| RowInfo {
11774 buffer_row: Some(row),
11775 ..Default::default()
11776 })
11777 .collect::<Vec<_>>(),
11778 &BTreeMap::default(),
11779 Some(DisplayPoint::new(DisplayRow(0), 0)),
11780 &snapshot,
11781 window,
11782 cx,
11783 )
11784 })
11785 .unwrap();
11786 assert_eq!(layouts.len(), 6);
11787
11788 let relative_rows = window
11789 .update(cx, |editor, window, cx| {
11790 let snapshot = editor.snapshot(window, cx);
11791 element.calculate_relative_line_numbers(
11792 &snapshot,
11793 &(DisplayRow(0)..DisplayRow(6)),
11794 Some(DisplayRow(3)),
11795 false,
11796 )
11797 })
11798 .unwrap();
11799 assert_eq!(relative_rows[&DisplayRow(0)], 3);
11800 assert_eq!(relative_rows[&DisplayRow(1)], 2);
11801 assert_eq!(relative_rows[&DisplayRow(2)], 1);
11802 // current line has no relative number
11803 assert_eq!(relative_rows[&DisplayRow(4)], 1);
11804 assert_eq!(relative_rows[&DisplayRow(5)], 2);
11805
11806 // works if cursor is before screen
11807 let relative_rows = window
11808 .update(cx, |editor, window, cx| {
11809 let snapshot = editor.snapshot(window, cx);
11810 element.calculate_relative_line_numbers(
11811 &snapshot,
11812 &(DisplayRow(3)..DisplayRow(6)),
11813 Some(DisplayRow(1)),
11814 false,
11815 )
11816 })
11817 .unwrap();
11818 assert_eq!(relative_rows.len(), 3);
11819 assert_eq!(relative_rows[&DisplayRow(3)], 2);
11820 assert_eq!(relative_rows[&DisplayRow(4)], 3);
11821 assert_eq!(relative_rows[&DisplayRow(5)], 4);
11822
11823 // works if cursor is after screen
11824 let relative_rows = window
11825 .update(cx, |editor, window, cx| {
11826 let snapshot = editor.snapshot(window, cx);
11827 element.calculate_relative_line_numbers(
11828 &snapshot,
11829 &(DisplayRow(0)..DisplayRow(3)),
11830 Some(DisplayRow(6)),
11831 false,
11832 )
11833 })
11834 .unwrap();
11835 assert_eq!(relative_rows.len(), 3);
11836 assert_eq!(relative_rows[&DisplayRow(0)], 5);
11837 assert_eq!(relative_rows[&DisplayRow(1)], 4);
11838 assert_eq!(relative_rows[&DisplayRow(2)], 3);
11839
11840 const DELETED_LINE: u32 = 3;
11841 let layouts = cx
11842 .update_window(*window, |_, window, cx| {
11843 element.layout_line_numbers(
11844 None,
11845 GutterDimensions {
11846 left_padding: Pixels::ZERO,
11847 right_padding: Pixels::ZERO,
11848 width: px(30.0),
11849 margin: Pixels::ZERO,
11850 git_blame_entries_width: None,
11851 },
11852 line_height,
11853 gpui::Point::default(),
11854 DisplayRow(0)..DisplayRow(6),
11855 &(0..6)
11856 .map(|row| RowInfo {
11857 buffer_row: Some(row),
11858 diff_status: (row == DELETED_LINE).then(|| {
11859 DiffHunkStatus::deleted(
11860 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
11861 )
11862 }),
11863 ..Default::default()
11864 })
11865 .collect::<Vec<_>>(),
11866 &BTreeMap::default(),
11867 Some(DisplayPoint::new(DisplayRow(0), 0)),
11868 &snapshot,
11869 window,
11870 cx,
11871 )
11872 })
11873 .unwrap();
11874 assert_eq!(layouts.len(), 5,);
11875 assert!(
11876 layouts.get(&MultiBufferRow(DELETED_LINE)).is_none(),
11877 "Deleted line should not have a line number"
11878 );
11879 }
11880
11881 #[gpui::test]
11882 fn test_shape_line_numbers_wrapping(cx: &mut TestAppContext) {
11883 init_test(cx, |_| {});
11884 let window = cx.add_window(|window, cx| {
11885 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
11886 Editor::new(EditorMode::full(), buffer, None, window, cx)
11887 });
11888
11889 update_test_language_settings(cx, |s| {
11890 s.defaults.preferred_line_length = Some(5_u32);
11891 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
11892 });
11893
11894 let editor = window.root(cx).unwrap();
11895 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
11896 let line_height = window
11897 .update(cx, |_, window, _| {
11898 style.text.line_height_in_pixels(window.rem_size())
11899 })
11900 .unwrap();
11901 let element = EditorElement::new(&editor, style);
11902 let snapshot = window
11903 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
11904 .unwrap();
11905
11906 let layouts = cx
11907 .update_window(*window, |_, window, cx| {
11908 element.layout_line_numbers(
11909 None,
11910 GutterDimensions {
11911 left_padding: Pixels::ZERO,
11912 right_padding: Pixels::ZERO,
11913 width: px(30.0),
11914 margin: Pixels::ZERO,
11915 git_blame_entries_width: None,
11916 },
11917 line_height,
11918 gpui::Point::default(),
11919 DisplayRow(0)..DisplayRow(6),
11920 &(0..6)
11921 .map(|row| RowInfo {
11922 buffer_row: Some(row),
11923 ..Default::default()
11924 })
11925 .collect::<Vec<_>>(),
11926 &BTreeMap::default(),
11927 Some(DisplayPoint::new(DisplayRow(0), 0)),
11928 &snapshot,
11929 window,
11930 cx,
11931 )
11932 })
11933 .unwrap();
11934 assert_eq!(layouts.len(), 3);
11935
11936 let relative_rows = window
11937 .update(cx, |editor, window, cx| {
11938 let snapshot = editor.snapshot(window, cx);
11939 element.calculate_relative_line_numbers(
11940 &snapshot,
11941 &(DisplayRow(0)..DisplayRow(6)),
11942 Some(DisplayRow(3)),
11943 true,
11944 )
11945 })
11946 .unwrap();
11947
11948 assert_eq!(relative_rows[&DisplayRow(0)], 3);
11949 assert_eq!(relative_rows[&DisplayRow(1)], 2);
11950 assert_eq!(relative_rows[&DisplayRow(2)], 1);
11951 // current line has no relative number
11952 assert_eq!(relative_rows[&DisplayRow(4)], 1);
11953 assert_eq!(relative_rows[&DisplayRow(5)], 2);
11954
11955 let layouts = cx
11956 .update_window(*window, |_, window, cx| {
11957 element.layout_line_numbers(
11958 None,
11959 GutterDimensions {
11960 left_padding: Pixels::ZERO,
11961 right_padding: Pixels::ZERO,
11962 width: px(30.0),
11963 margin: Pixels::ZERO,
11964 git_blame_entries_width: None,
11965 },
11966 line_height,
11967 gpui::Point::default(),
11968 DisplayRow(0)..DisplayRow(6),
11969 &(0..6)
11970 .map(|row| RowInfo {
11971 buffer_row: Some(row),
11972 diff_status: Some(DiffHunkStatus::deleted(
11973 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
11974 )),
11975 ..Default::default()
11976 })
11977 .collect::<Vec<_>>(),
11978 &BTreeMap::from_iter([(DisplayRow(0), LineHighlightSpec::default())]),
11979 Some(DisplayPoint::new(DisplayRow(0), 0)),
11980 &snapshot,
11981 window,
11982 cx,
11983 )
11984 })
11985 .unwrap();
11986 assert!(
11987 layouts.is_empty(),
11988 "Deleted lines should have no line number"
11989 );
11990
11991 let relative_rows = window
11992 .update(cx, |editor, window, cx| {
11993 let snapshot = editor.snapshot(window, cx);
11994 element.calculate_relative_line_numbers(
11995 &snapshot,
11996 &(DisplayRow(0)..DisplayRow(6)),
11997 Some(DisplayRow(3)),
11998 true,
11999 )
12000 })
12001 .unwrap();
12002
12003 // Deleted lines should still have relative numbers
12004 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12005 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12006 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12007 // current line, even if deleted, has no relative number
12008 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12009 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12010 }
12011
12012 #[gpui::test]
12013 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
12014 init_test(cx, |_| {});
12015
12016 // Enable `vim_mode` setting so the logic that checks whether this is
12017 // enabled can work as expected.
12018 cx.update(|cx| {
12019 VimModeSetting::override_global(VimModeSetting(true), cx);
12020 });
12021
12022 let window = cx.add_window(|window, cx| {
12023 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
12024 Editor::new(EditorMode::full(), buffer, None, window, cx)
12025 });
12026 let cx = &mut VisualTestContext::from_window(*window, cx);
12027 let editor = window.root(cx).unwrap();
12028 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12029
12030 window
12031 .update(cx, |editor, window, cx| {
12032 editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
12033 s.select_ranges([
12034 Point::new(0, 0)..Point::new(1, 0),
12035 Point::new(3, 2)..Point::new(3, 3),
12036 Point::new(5, 6)..Point::new(6, 0),
12037 ]);
12038 });
12039 })
12040 .unwrap();
12041
12042 let (_, state) = cx.draw(
12043 point(px(500.), px(500.)),
12044 size(px(500.), px(500.)),
12045 |_, _| EditorElement::new(&editor, style),
12046 );
12047
12048 assert_eq!(state.selections.len(), 1);
12049 let local_selections = &state.selections[0].1;
12050 assert_eq!(local_selections.len(), 3);
12051 // moves cursor back one line
12052 assert_eq!(
12053 local_selections[0].head,
12054 DisplayPoint::new(DisplayRow(0), 6)
12055 );
12056 assert_eq!(
12057 local_selections[0].range,
12058 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
12059 );
12060
12061 // moves cursor back one column
12062 assert_eq!(
12063 local_selections[1].range,
12064 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
12065 );
12066 assert_eq!(
12067 local_selections[1].head,
12068 DisplayPoint::new(DisplayRow(3), 2)
12069 );
12070
12071 // leaves cursor on the max point
12072 assert_eq!(
12073 local_selections[2].range,
12074 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
12075 );
12076 assert_eq!(
12077 local_selections[2].head,
12078 DisplayPoint::new(DisplayRow(6), 0)
12079 );
12080
12081 // active lines does not include 1 (even though the range of the selection does)
12082 assert_eq!(
12083 state.active_rows.keys().cloned().collect::<Vec<_>>(),
12084 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
12085 );
12086 }
12087
12088 #[gpui::test]
12089 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
12090 init_test(cx, |_| {});
12091
12092 let window = cx.add_window(|window, cx| {
12093 let buffer = MultiBuffer::build_simple("", cx);
12094 Editor::new(EditorMode::full(), buffer, None, window, cx)
12095 });
12096 let cx = &mut VisualTestContext::from_window(*window, cx);
12097 let editor = window.root(cx).unwrap();
12098 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12099 window
12100 .update(cx, |editor, window, cx| {
12101 editor.set_placeholder_text("hello", window, cx);
12102 editor.insert_blocks(
12103 [BlockProperties {
12104 style: BlockStyle::Fixed,
12105 placement: BlockPlacement::Above(Anchor::min()),
12106 height: Some(3),
12107 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
12108 priority: 0,
12109 }],
12110 None,
12111 cx,
12112 );
12113
12114 // Blur the editor so that it displays placeholder text.
12115 window.blur();
12116 })
12117 .unwrap();
12118
12119 let (_, state) = cx.draw(
12120 point(px(500.), px(500.)),
12121 size(px(500.), px(500.)),
12122 |_, _| EditorElement::new(&editor, style),
12123 );
12124 assert_eq!(state.position_map.line_layouts.len(), 4);
12125 assert_eq!(state.line_numbers.len(), 1);
12126 assert_eq!(
12127 state
12128 .line_numbers
12129 .get(&MultiBufferRow(0))
12130 .map(|line_number| line_number
12131 .segments
12132 .first()
12133 .unwrap()
12134 .shaped_line
12135 .text
12136 .as_ref()),
12137 Some("1")
12138 );
12139 }
12140
12141 #[gpui::test]
12142 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
12143 const TAB_SIZE: u32 = 4;
12144
12145 let input_text = "\t \t|\t| a b";
12146 let expected_invisibles = vec![
12147 Invisible::Tab {
12148 line_start_offset: 0,
12149 line_end_offset: TAB_SIZE as usize,
12150 },
12151 Invisible::Whitespace {
12152 line_offset: TAB_SIZE as usize,
12153 },
12154 Invisible::Tab {
12155 line_start_offset: TAB_SIZE as usize + 1,
12156 line_end_offset: TAB_SIZE as usize * 2,
12157 },
12158 Invisible::Tab {
12159 line_start_offset: TAB_SIZE as usize * 2 + 1,
12160 line_end_offset: TAB_SIZE as usize * 3,
12161 },
12162 Invisible::Whitespace {
12163 line_offset: TAB_SIZE as usize * 3 + 1,
12164 },
12165 Invisible::Whitespace {
12166 line_offset: TAB_SIZE as usize * 3 + 3,
12167 },
12168 ];
12169 assert_eq!(
12170 expected_invisibles.len(),
12171 input_text
12172 .chars()
12173 .filter(|initial_char| initial_char.is_whitespace())
12174 .count(),
12175 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
12176 );
12177
12178 for show_line_numbers in [true, false] {
12179 init_test(cx, |s| {
12180 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12181 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
12182 });
12183
12184 let actual_invisibles = collect_invisibles_from_new_editor(
12185 cx,
12186 EditorMode::full(),
12187 input_text,
12188 px(500.0),
12189 show_line_numbers,
12190 );
12191
12192 assert_eq!(expected_invisibles, actual_invisibles);
12193 }
12194 }
12195
12196 #[gpui::test]
12197 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
12198 init_test(cx, |s| {
12199 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12200 s.defaults.tab_size = NonZeroU32::new(4);
12201 });
12202
12203 for editor_mode_without_invisibles in [
12204 EditorMode::SingleLine,
12205 EditorMode::AutoHeight {
12206 min_lines: 1,
12207 max_lines: Some(100),
12208 },
12209 ] {
12210 for show_line_numbers in [true, false] {
12211 let invisibles = collect_invisibles_from_new_editor(
12212 cx,
12213 editor_mode_without_invisibles.clone(),
12214 "\t\t\t| | a b",
12215 px(500.0),
12216 show_line_numbers,
12217 );
12218 assert!(
12219 invisibles.is_empty(),
12220 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
12221 );
12222 }
12223 }
12224 }
12225
12226 #[gpui::test]
12227 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
12228 let tab_size = 4;
12229 let input_text = "a\tbcd ".repeat(9);
12230 let repeated_invisibles = [
12231 Invisible::Tab {
12232 line_start_offset: 1,
12233 line_end_offset: tab_size as usize,
12234 },
12235 Invisible::Whitespace {
12236 line_offset: tab_size as usize + 3,
12237 },
12238 Invisible::Whitespace {
12239 line_offset: tab_size as usize + 4,
12240 },
12241 Invisible::Whitespace {
12242 line_offset: tab_size as usize + 5,
12243 },
12244 Invisible::Whitespace {
12245 line_offset: tab_size as usize + 6,
12246 },
12247 Invisible::Whitespace {
12248 line_offset: tab_size as usize + 7,
12249 },
12250 ];
12251 let expected_invisibles = std::iter::once(repeated_invisibles)
12252 .cycle()
12253 .take(9)
12254 .flatten()
12255 .collect::<Vec<_>>();
12256 assert_eq!(
12257 expected_invisibles.len(),
12258 input_text
12259 .chars()
12260 .filter(|initial_char| initial_char.is_whitespace())
12261 .count(),
12262 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
12263 );
12264 info!("Expected invisibles: {expected_invisibles:?}");
12265
12266 init_test(cx, |_| {});
12267
12268 // Put the same string with repeating whitespace pattern into editors of various size,
12269 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
12270 let resize_step = 10.0;
12271 let mut editor_width = 200.0;
12272 while editor_width <= 1000.0 {
12273 for show_line_numbers in [true, false] {
12274 update_test_language_settings(cx, |s| {
12275 s.defaults.tab_size = NonZeroU32::new(tab_size);
12276 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12277 s.defaults.preferred_line_length = Some(editor_width as u32);
12278 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
12279 });
12280
12281 let actual_invisibles = collect_invisibles_from_new_editor(
12282 cx,
12283 EditorMode::full(),
12284 &input_text,
12285 px(editor_width),
12286 show_line_numbers,
12287 );
12288
12289 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
12290 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
12291 let mut i = 0;
12292 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
12293 i = actual_index;
12294 match expected_invisibles.get(i) {
12295 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
12296 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
12297 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
12298 _ => {
12299 panic!(
12300 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
12301 )
12302 }
12303 },
12304 None => {
12305 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
12306 }
12307 }
12308 }
12309 let missing_expected_invisibles = &expected_invisibles[i + 1..];
12310 assert!(
12311 missing_expected_invisibles.is_empty(),
12312 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
12313 );
12314
12315 editor_width += resize_step;
12316 }
12317 }
12318 }
12319
12320 fn collect_invisibles_from_new_editor(
12321 cx: &mut TestAppContext,
12322 editor_mode: EditorMode,
12323 input_text: &str,
12324 editor_width: Pixels,
12325 show_line_numbers: bool,
12326 ) -> Vec<Invisible> {
12327 info!(
12328 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
12329 f32::from(editor_width)
12330 );
12331 let window = cx.add_window(|window, cx| {
12332 let buffer = MultiBuffer::build_simple(input_text, cx);
12333 Editor::new(editor_mode, buffer, None, window, cx)
12334 });
12335 let cx = &mut VisualTestContext::from_window(*window, cx);
12336 let editor = window.root(cx).unwrap();
12337
12338 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12339 window
12340 .update(cx, |editor, _, cx| {
12341 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12342 editor.set_wrap_width(Some(editor_width), cx);
12343 editor.set_show_line_numbers(show_line_numbers, cx);
12344 })
12345 .unwrap();
12346 let (_, state) = cx.draw(
12347 point(px(500.), px(500.)),
12348 size(px(500.), px(500.)),
12349 |_, _| EditorElement::new(&editor, style),
12350 );
12351 state
12352 .position_map
12353 .line_layouts
12354 .iter()
12355 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
12356 .cloned()
12357 .collect()
12358 }
12359
12360 #[gpui::test]
12361 fn test_merge_overlapping_ranges() {
12362 let base_bg = Hsla::white();
12363 let color1 = Hsla {
12364 h: 0.0,
12365 s: 0.5,
12366 l: 0.5,
12367 a: 0.5,
12368 };
12369 let color2 = Hsla {
12370 h: 120.0,
12371 s: 0.5,
12372 l: 0.5,
12373 a: 0.5,
12374 };
12375
12376 let display_point = |col| DisplayPoint::new(DisplayRow(0), col);
12377 let cols = |v: &Vec<(Range<DisplayPoint>, Hsla)>| -> Vec<(u32, u32)> {
12378 v.iter()
12379 .map(|(r, _)| (r.start.column(), r.end.column()))
12380 .collect()
12381 };
12382
12383 // Test overlapping ranges blend colors
12384 let overlapping = vec![
12385 (display_point(5)..display_point(15), color1),
12386 (display_point(10)..display_point(20), color2),
12387 ];
12388 let result = EditorElement::merge_overlapping_ranges(overlapping, base_bg);
12389 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
12390
12391 // Test middle segment should have blended color
12392 let blended = Hsla::blend(Hsla::blend(base_bg, color1), color2);
12393 assert_eq!(result[1].1, blended);
12394
12395 // Test adjacent same-color ranges merge
12396 let adjacent_same = vec![
12397 (display_point(5)..display_point(10), color1),
12398 (display_point(10)..display_point(15), color1),
12399 ];
12400 let result = EditorElement::merge_overlapping_ranges(adjacent_same, base_bg);
12401 assert_eq!(cols(&result), vec![(5, 15)]);
12402
12403 // Test contained range splits
12404 let contained = vec![
12405 (display_point(5)..display_point(20), color1),
12406 (display_point(10)..display_point(15), color2),
12407 ];
12408 let result = EditorElement::merge_overlapping_ranges(contained, base_bg);
12409 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
12410
12411 // Test multiple overlaps split at every boundary
12412 let color3 = Hsla {
12413 h: 240.0,
12414 s: 0.5,
12415 l: 0.5,
12416 a: 0.5,
12417 };
12418 let complex = vec![
12419 (display_point(5)..display_point(12), color1),
12420 (display_point(8)..display_point(16), color2),
12421 (display_point(10)..display_point(14), color3),
12422 ];
12423 let result = EditorElement::merge_overlapping_ranges(complex, base_bg);
12424 assert_eq!(
12425 cols(&result),
12426 vec![(5, 8), (8, 10), (10, 12), (12, 14), (14, 16)]
12427 );
12428 }
12429
12430 #[gpui::test]
12431 fn test_bg_segments_per_row() {
12432 let base_bg = Hsla::white();
12433
12434 // Case A: selection spans three display rows: row 1 [5, end), full row 2, row 3 [0, 7)
12435 {
12436 let selection_color = Hsla {
12437 h: 200.0,
12438 s: 0.5,
12439 l: 0.5,
12440 a: 0.5,
12441 };
12442 let player_color = PlayerColor {
12443 cursor: selection_color,
12444 background: selection_color,
12445 selection: selection_color,
12446 };
12447
12448 let spanning_selection = SelectionLayout {
12449 head: DisplayPoint::new(DisplayRow(3), 7),
12450 cursor_shape: CursorShape::Bar,
12451 is_newest: true,
12452 is_local: true,
12453 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 7),
12454 active_rows: DisplayRow(1)..DisplayRow(4),
12455 user_name: None,
12456 };
12457
12458 let selections = vec![(player_color, vec![spanning_selection])];
12459 let result = EditorElement::bg_segments_per_row(
12460 DisplayRow(0)..DisplayRow(5),
12461 &selections,
12462 &[],
12463 base_bg,
12464 );
12465
12466 assert_eq!(result.len(), 5);
12467 assert!(result[0].is_empty());
12468 assert_eq!(result[1].len(), 1);
12469 assert_eq!(result[2].len(), 1);
12470 assert_eq!(result[3].len(), 1);
12471 assert!(result[4].is_empty());
12472
12473 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
12474 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
12475 assert_eq!(result[1][0].0.end.column(), u32::MAX);
12476 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
12477 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
12478 assert_eq!(result[2][0].0.end.column(), u32::MAX);
12479 assert_eq!(result[3][0].0.start, DisplayPoint::new(DisplayRow(3), 0));
12480 assert_eq!(result[3][0].0.end, DisplayPoint::new(DisplayRow(3), 7));
12481 }
12482
12483 // Case B: selection ends exactly at the start of row 3, excluding row 3
12484 {
12485 let selection_color = Hsla {
12486 h: 120.0,
12487 s: 0.5,
12488 l: 0.5,
12489 a: 0.5,
12490 };
12491 let player_color = PlayerColor {
12492 cursor: selection_color,
12493 background: selection_color,
12494 selection: selection_color,
12495 };
12496
12497 let selection = SelectionLayout {
12498 head: DisplayPoint::new(DisplayRow(2), 0),
12499 cursor_shape: CursorShape::Bar,
12500 is_newest: true,
12501 is_local: true,
12502 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 0),
12503 active_rows: DisplayRow(1)..DisplayRow(3),
12504 user_name: None,
12505 };
12506
12507 let selections = vec![(player_color, vec![selection])];
12508 let result = EditorElement::bg_segments_per_row(
12509 DisplayRow(0)..DisplayRow(4),
12510 &selections,
12511 &[],
12512 base_bg,
12513 );
12514
12515 assert_eq!(result.len(), 4);
12516 assert!(result[0].is_empty());
12517 assert_eq!(result[1].len(), 1);
12518 assert_eq!(result[2].len(), 1);
12519 assert!(result[3].is_empty());
12520
12521 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
12522 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
12523 assert_eq!(result[1][0].0.end.column(), u32::MAX);
12524 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
12525 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
12526 assert_eq!(result[2][0].0.end.column(), u32::MAX);
12527 }
12528 }
12529
12530 #[cfg(test)]
12531 fn generate_test_run(len: usize, color: Hsla) -> TextRun {
12532 TextRun {
12533 len,
12534 color,
12535 ..Default::default()
12536 }
12537 }
12538
12539 #[gpui::test]
12540 fn test_split_runs_by_bg_segments(cx: &mut gpui::TestAppContext) {
12541 init_test(cx, |_| {});
12542
12543 let dx = |start: u32, end: u32| {
12544 DisplayPoint::new(DisplayRow(0), start)..DisplayPoint::new(DisplayRow(0), end)
12545 };
12546
12547 let text_color = Hsla {
12548 h: 210.0,
12549 s: 0.1,
12550 l: 0.4,
12551 a: 1.0,
12552 };
12553 let bg_1 = Hsla {
12554 h: 30.0,
12555 s: 0.6,
12556 l: 0.8,
12557 a: 1.0,
12558 };
12559 let bg_2 = Hsla {
12560 h: 200.0,
12561 s: 0.6,
12562 l: 0.2,
12563 a: 1.0,
12564 };
12565 let min_contrast = 45.0;
12566 let adjusted_bg1 = ensure_minimum_contrast(text_color, bg_1, min_contrast);
12567 let adjusted_bg2 = ensure_minimum_contrast(text_color, bg_2, min_contrast);
12568
12569 // Case A: single run; disjoint segments inside the run
12570 {
12571 let runs = vec![generate_test_run(20, text_color)];
12572 let segs = vec![(dx(5, 10), bg_1), (dx(12, 16), bg_2)];
12573 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
12574 // Expected slices: [0,5) [5,10) [10,12) [12,16) [16,20)
12575 assert_eq!(
12576 out.iter().map(|r| r.len).collect::<Vec<_>>(),
12577 vec![5, 5, 2, 4, 4]
12578 );
12579 assert_eq!(out[0].color, text_color);
12580 assert_eq!(out[1].color, adjusted_bg1);
12581 assert_eq!(out[2].color, text_color);
12582 assert_eq!(out[3].color, adjusted_bg2);
12583 assert_eq!(out[4].color, text_color);
12584 }
12585
12586 // Case B: multiple runs; segment extends to end of line (u32::MAX)
12587 {
12588 let runs = vec![
12589 generate_test_run(8, text_color),
12590 generate_test_run(7, text_color),
12591 ];
12592 let segs = vec![(dx(6, u32::MAX), bg_1)];
12593 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
12594 // Expected slices across runs: [0,6) [6,8) | [0,7)
12595 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![6, 2, 7]);
12596 assert_eq!(out[0].color, text_color);
12597 assert_eq!(out[1].color, adjusted_bg1);
12598 assert_eq!(out[2].color, adjusted_bg1);
12599 }
12600
12601 // Case C: multi-byte characters
12602 {
12603 // for text: "Hello π δΈη!"
12604 let runs = vec![
12605 generate_test_run(5, text_color), // "Hello"
12606 generate_test_run(6, text_color), // " π "
12607 generate_test_run(6, text_color), // "δΈη"
12608 generate_test_run(1, text_color), // "!"
12609 ];
12610 // selecting "π δΈ"
12611 let segs = vec![(dx(6, 14), bg_1)];
12612 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
12613 // "Hello" | " " | "π " | "δΈ" | "η" | "!"
12614 assert_eq!(
12615 out.iter().map(|r| r.len).collect::<Vec<_>>(),
12616 vec![5, 1, 5, 3, 3, 1]
12617 );
12618 assert_eq!(out[0].color, text_color); // "Hello"
12619 assert_eq!(out[2].color, adjusted_bg1); // "π "
12620 assert_eq!(out[3].color, adjusted_bg1); // "δΈ"
12621 assert_eq!(out[4].color, text_color); // "η"
12622 assert_eq!(out[5].color, text_color); // "!"
12623 }
12624
12625 // Case D: split multiple consecutive text runs with segments
12626 {
12627 let segs = vec![
12628 (dx(2, 4), bg_1), // selecting "cd"
12629 (dx(4, 8), bg_2), // selecting "efgh"
12630 (dx(9, 11), bg_1), // selecting "jk"
12631 (dx(12, 16), bg_2), // selecting "mnop"
12632 (dx(18, 19), bg_1), // selecting "s"
12633 ];
12634
12635 // for text: "abcdef"
12636 let runs = vec![
12637 generate_test_run(2, text_color), // ab
12638 generate_test_run(4, text_color), // cdef
12639 ];
12640 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
12641 // new splits "ab", "cd", "ef"
12642 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![2, 2, 2]);
12643 assert_eq!(out[0].color, text_color);
12644 assert_eq!(out[1].color, adjusted_bg1);
12645 assert_eq!(out[2].color, adjusted_bg2);
12646
12647 // for text: "ghijklmn"
12648 let runs = vec![
12649 generate_test_run(3, text_color), // ghi
12650 generate_test_run(2, text_color), // jk
12651 generate_test_run(3, text_color), // lmn
12652 ];
12653 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 6); // 2 + 4 from first run
12654 // new splits "gh", "i", "jk", "l", "mn"
12655 assert_eq!(
12656 out.iter().map(|r| r.len).collect::<Vec<_>>(),
12657 vec![2, 1, 2, 1, 2]
12658 );
12659 assert_eq!(out[0].color, adjusted_bg2);
12660 assert_eq!(out[1].color, text_color);
12661 assert_eq!(out[2].color, adjusted_bg1);
12662 assert_eq!(out[3].color, text_color);
12663 assert_eq!(out[4].color, adjusted_bg2);
12664
12665 // for text: "opqrs"
12666 let runs = vec![
12667 generate_test_run(1, text_color), // o
12668 generate_test_run(4, text_color), // pqrs
12669 ];
12670 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 14); // 6 + 3 + 2 + 3 from first two runs
12671 // new splits "o", "p", "qr", "s"
12672 assert_eq!(
12673 out.iter().map(|r| r.len).collect::<Vec<_>>(),
12674 vec![1, 1, 2, 1]
12675 );
12676 assert_eq!(out[0].color, adjusted_bg2);
12677 assert_eq!(out[1].color, adjusted_bg2);
12678 assert_eq!(out[2].color, text_color);
12679 assert_eq!(out[3].color, adjusted_bg1);
12680 }
12681 }
12682}