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 .buffer_font(cx)
4146 .when(
4147 file_status.is_some_and(|s| s.is_deleted()),
4148 |label| label.strikethrough(),
4149 ),
4150 )
4151 .on_click(window.listener_for(&self.editor, {
4152 let jump_data = jump_data.clone();
4153 move |editor, e: &ClickEvent, window, cx| {
4154 editor.open_excerpts_common(
4155 Some(jump_data.clone()),
4156 e.modifiers().secondary(),
4157 window,
4158 cx,
4159 );
4160 }
4161 })),
4162 )
4163 .when_some(parent_path, |then, path| {
4164 // TODO: Swap to use `truncate_start()`
4165 then.child(Label::new(path).buffer_font(cx).truncate().color(
4166 if file_status.is_some_and(FileStatus::is_deleted) {
4167 Color::Custom(colors.text_disabled)
4168 } else {
4169 Color::Custom(colors.text_muted)
4170 },
4171 ))
4172 })
4173 .when_some(breadcrumbs, |then, breadcrumbs| {
4174 then.child(self.render_breadcrumb_text(
4175 breadcrumbs,
4176 None, // TODO gotta figure this out somehow
4177 weak_editor,
4178 window,
4179 cx,
4180 ))
4181 })
4182 }))
4183 .when(
4184 can_open_excerpts && is_selected && relative_path.is_some(),
4185 |el| {
4186 el.child(
4187 Button::new("open-file-button", "Open File")
4188 .style(ButtonStyle::OutlinedGhost)
4189 .key_binding(KeyBinding::for_action_in(
4190 &OpenExcerpts,
4191 &focus_handle,
4192 cx,
4193 ))
4194 .on_click(window.listener_for(&self.editor, {
4195 let jump_data = jump_data.clone();
4196 move |editor, e: &ClickEvent, window, cx| {
4197 editor.open_excerpts_common(
4198 Some(jump_data.clone()),
4199 e.modifiers().secondary(),
4200 window,
4201 cx,
4202 );
4203 }
4204 })),
4205 )
4206 },
4207 )
4208 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
4209 .on_click(window.listener_for(&self.editor, {
4210 let buffer_id = for_excerpt.buffer_id;
4211 move |editor, e: &ClickEvent, window, cx| {
4212 if e.modifiers().alt {
4213 editor.open_excerpts_common(
4214 Some(jump_data.clone()),
4215 e.modifiers().secondary(),
4216 window,
4217 cx,
4218 );
4219 return;
4220 }
4221
4222 if is_folded {
4223 editor.unfold_buffer(buffer_id, cx);
4224 } else {
4225 editor.fold_buffer(buffer_id, cx);
4226 }
4227 }
4228 })),
4229 ),
4230 );
4231
4232 let file = for_excerpt.buffer.file().cloned();
4233 let editor = self.editor.clone();
4234
4235 right_click_menu("buffer-header-context-menu")
4236 .trigger(move |_, _, _| header)
4237 .menu(move |window, cx| {
4238 let menu_context = focus_handle.clone();
4239 let editor = editor.clone();
4240 let file = file.clone();
4241 ContextMenu::build(window, cx, move |mut menu, window, cx| {
4242 if let Some(file) = file
4243 && let Some(project) = editor.read(cx).project()
4244 && let Some(worktree) =
4245 project.read(cx).worktree_for_id(file.worktree_id(cx), cx)
4246 {
4247 let path_style = file.path_style(cx);
4248 let worktree = worktree.read(cx);
4249 let relative_path = file.path();
4250 let entry_for_path = worktree.entry_for_path(relative_path);
4251 let abs_path = entry_for_path.map(|e| {
4252 e.canonical_path.as_deref().map_or_else(
4253 || worktree.absolutize(relative_path),
4254 Path::to_path_buf,
4255 )
4256 });
4257 let has_relative_path = worktree.root_entry().is_some_and(Entry::is_dir);
4258
4259 let parent_abs_path = abs_path
4260 .as_ref()
4261 .and_then(|abs_path| Some(abs_path.parent()?.to_path_buf()));
4262 let relative_path = has_relative_path
4263 .then_some(relative_path)
4264 .map(ToOwned::to_owned);
4265
4266 let visible_in_project_panel =
4267 relative_path.is_some() && worktree.is_visible();
4268 let reveal_in_project_panel = entry_for_path
4269 .filter(|_| visible_in_project_panel)
4270 .map(|entry| entry.id);
4271 menu = menu
4272 .when_some(abs_path, |menu, abs_path| {
4273 menu.entry(
4274 "Copy Path",
4275 Some(Box::new(zed_actions::workspace::CopyPath)),
4276 window.handler_for(&editor, move |_, _, cx| {
4277 cx.write_to_clipboard(ClipboardItem::new_string(
4278 abs_path.to_string_lossy().into_owned(),
4279 ));
4280 }),
4281 )
4282 })
4283 .when_some(relative_path, |menu, relative_path| {
4284 menu.entry(
4285 "Copy Relative Path",
4286 Some(Box::new(zed_actions::workspace::CopyRelativePath)),
4287 window.handler_for(&editor, move |_, _, cx| {
4288 cx.write_to_clipboard(ClipboardItem::new_string(
4289 relative_path.display(path_style).to_string(),
4290 ));
4291 }),
4292 )
4293 })
4294 .when(
4295 reveal_in_project_panel.is_some() || parent_abs_path.is_some(),
4296 |menu| menu.separator(),
4297 )
4298 .when_some(reveal_in_project_panel, |menu, entry_id| {
4299 menu.entry(
4300 "Reveal In Project Panel",
4301 Some(Box::new(RevealInProjectPanel::default())),
4302 window.handler_for(&editor, move |editor, _, cx| {
4303 if let Some(project) = &mut editor.project {
4304 project.update(cx, |_, cx| {
4305 cx.emit(project::Event::RevealInProjectPanel(
4306 entry_id,
4307 ))
4308 });
4309 }
4310 }),
4311 )
4312 })
4313 .when_some(parent_abs_path, |menu, parent_abs_path| {
4314 menu.entry(
4315 "Open in Terminal",
4316 Some(Box::new(OpenInTerminal)),
4317 window.handler_for(&editor, move |_, window, cx| {
4318 window.dispatch_action(
4319 OpenTerminal {
4320 working_directory: parent_abs_path.clone(),
4321 }
4322 .boxed_clone(),
4323 cx,
4324 );
4325 }),
4326 )
4327 });
4328 }
4329
4330 menu.context(menu_context)
4331 })
4332 })
4333 }
4334
4335 // TODO This has too much code in common with Breadcrumb::render. We should find a way to DRY it.
4336 fn render_breadcrumb_text(
4337 &self,
4338 mut segments: Vec<BreadcrumbText>,
4339 prefix: Option<gpui::AnyElement>,
4340 editor: WeakEntity<Editor>,
4341 window: &mut Window,
4342 cx: &App,
4343 ) -> impl IntoElement {
4344 const MAX_SEGMENTS: usize = 12;
4345
4346 let element = h_flex()
4347 .id("breadcrumb-container")
4348 .flex_grow()
4349 .overflow_x_scroll()
4350 .text_ui(cx);
4351
4352 let prefix_end_ix = cmp::min(segments.len(), MAX_SEGMENTS / 2);
4353 let suffix_start_ix = cmp::max(
4354 prefix_end_ix,
4355 segments.len().saturating_sub(MAX_SEGMENTS / 2),
4356 );
4357
4358 if suffix_start_ix > prefix_end_ix {
4359 segments.splice(
4360 prefix_end_ix..suffix_start_ix,
4361 Some(BreadcrumbText {
4362 text: "β―".into(),
4363 highlights: None,
4364 font: None,
4365 }),
4366 );
4367 }
4368
4369 let highlighted_segments = segments.into_iter().enumerate().map(|(_index, segment)| {
4370 let mut text_style = window.text_style();
4371 if let Some(ref font) = segment.font {
4372 text_style.font_family = font.family.clone();
4373 text_style.font_features = font.features.clone();
4374 text_style.font_style = font.style;
4375 text_style.font_weight = font.weight;
4376 }
4377 text_style.color = Color::Muted.color(cx);
4378
4379 // TODO this shouldn't apply here, but will in the formal breadcrumb (e.g. singleton buffer). Need to resolve the difference.
4380 // if index == 0
4381 // && !TabBarSettings::get_global(cx).show
4382 // && active_item.is_dirty(cx)
4383 // && let Some(styled_element) = apply_dirty_filename_style(&segment, &text_style, cx)
4384 // {
4385 // return styled_element;
4386 // }
4387
4388 StyledText::new(segment.text.replace('\n', "β"))
4389 .with_default_highlights(&text_style, segment.highlights.unwrap_or_default())
4390 .into_any()
4391 });
4392 let breadcrumbs = Itertools::intersperse_with(highlighted_segments, || {
4393 Label::new("βΊ").color(Color::Placeholder).into_any_element()
4394 });
4395
4396 let breadcrumbs_stack = h_flex().gap_1().children(breadcrumbs);
4397
4398 let breadcrumbs = if let Some(prefix) = prefix {
4399 h_flex().gap_1p5().child(prefix).child(breadcrumbs_stack)
4400 } else {
4401 breadcrumbs_stack
4402 };
4403 element.child(
4404 ButtonLike::new("toggle outline view")
4405 .child(breadcrumbs)
4406 .style(ButtonStyle::Transparent)
4407 .on_click({
4408 let editor = editor.clone();
4409 move |_, window, cx| {
4410 if let Some((editor, callback)) = editor
4411 .upgrade()
4412 .zip(zed_actions::outline::TOGGLE_OUTLINE.get())
4413 {
4414 callback(editor.to_any_view(), window, cx);
4415 }
4416 }
4417 })
4418 .tooltip(move |_window, cx| {
4419 if let Some(editor) = editor.upgrade() {
4420 let focus_handle = editor.read(cx).focus_handle(cx);
4421 Tooltip::for_action_in(
4422 "Show Symbol Outline",
4423 &zed_actions::outline::ToggleOutline,
4424 &focus_handle,
4425 cx,
4426 )
4427 } else {
4428 Tooltip::for_action(
4429 "Show Symbol Outline",
4430 &zed_actions::outline::ToggleOutline,
4431 cx,
4432 )
4433 }
4434 }),
4435 )
4436 }
4437
4438 fn render_blocks(
4439 &self,
4440 rows: Range<DisplayRow>,
4441 snapshot: &EditorSnapshot,
4442 hitbox: &Hitbox,
4443 text_hitbox: &Hitbox,
4444 editor_width: Pixels,
4445 scroll_width: &mut Pixels,
4446 editor_margins: &EditorMargins,
4447 em_width: Pixels,
4448 text_x: Pixels,
4449 line_height: Pixels,
4450 line_layouts: &mut [LineWithInvisibles],
4451 selections: &[Selection<Point>],
4452 selected_buffer_ids: &Vec<BufferId>,
4453 latest_selection_anchors: &HashMap<BufferId, Anchor>,
4454 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4455 sticky_header_excerpt_id: Option<ExcerptId>,
4456 window: &mut Window,
4457 cx: &mut App,
4458 ) -> RenderBlocksOutput {
4459 let (fixed_blocks, non_fixed_blocks) = snapshot
4460 .blocks_in_range(rows.clone())
4461 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
4462
4463 let mut focused_block = self
4464 .editor
4465 .update(cx, |editor, _| editor.take_focused_block());
4466 let mut fixed_block_max_width = Pixels::ZERO;
4467 let mut blocks = Vec::new();
4468 let mut resized_blocks = HashMap::default();
4469 let mut row_block_types = HashMap::default();
4470 let mut block_resize_offset: i32 = 0;
4471
4472 for (row, block) in fixed_blocks {
4473 let block_id = block.id();
4474
4475 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4476 focused_block = None;
4477 }
4478
4479 if let Some((element, element_size, row, x_offset)) = self.render_block(
4480 block,
4481 AvailableSpace::MinContent,
4482 block_id,
4483 row,
4484 snapshot,
4485 text_x,
4486 &rows,
4487 line_layouts,
4488 editor_margins,
4489 line_height,
4490 em_width,
4491 text_hitbox,
4492 editor_width,
4493 scroll_width,
4494 &mut resized_blocks,
4495 &mut row_block_types,
4496 selections,
4497 selected_buffer_ids,
4498 latest_selection_anchors,
4499 is_row_soft_wrapped,
4500 sticky_header_excerpt_id,
4501 &mut block_resize_offset,
4502 window,
4503 cx,
4504 ) {
4505 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
4506 blocks.push(BlockLayout {
4507 id: block_id,
4508 x_offset,
4509 row: Some(row),
4510 element,
4511 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
4512 style: BlockStyle::Fixed,
4513 overlaps_gutter: true,
4514 is_buffer_header: block.is_buffer_header(),
4515 });
4516 }
4517 }
4518
4519 for (row, block) in non_fixed_blocks {
4520 let style = block.style();
4521 let width = match (style, block.place_near()) {
4522 (_, true) => AvailableSpace::MinContent,
4523 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
4524 (BlockStyle::Flex, _) => hitbox
4525 .size
4526 .width
4527 .max(fixed_block_max_width)
4528 .max(editor_margins.gutter.width + *scroll_width)
4529 .into(),
4530 (BlockStyle::Fixed, _) => unreachable!(),
4531 };
4532 let block_id = block.id();
4533
4534 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4535 focused_block = None;
4536 }
4537
4538 if let Some((element, element_size, row, x_offset)) = self.render_block(
4539 block,
4540 width,
4541 block_id,
4542 row,
4543 snapshot,
4544 text_x,
4545 &rows,
4546 line_layouts,
4547 editor_margins,
4548 line_height,
4549 em_width,
4550 text_hitbox,
4551 editor_width,
4552 scroll_width,
4553 &mut resized_blocks,
4554 &mut row_block_types,
4555 selections,
4556 selected_buffer_ids,
4557 latest_selection_anchors,
4558 is_row_soft_wrapped,
4559 sticky_header_excerpt_id,
4560 &mut block_resize_offset,
4561 window,
4562 cx,
4563 ) {
4564 blocks.push(BlockLayout {
4565 id: block_id,
4566 x_offset,
4567 row: Some(row),
4568 element,
4569 available_space: size(width, element_size.height.into()),
4570 style,
4571 overlaps_gutter: !block.place_near(),
4572 is_buffer_header: block.is_buffer_header(),
4573 });
4574 }
4575 }
4576
4577 if let Some(focused_block) = focused_block
4578 && let Some(focus_handle) = focused_block.focus_handle.upgrade()
4579 && focus_handle.is_focused(window)
4580 && let Some(block) = snapshot.block_for_id(focused_block.id)
4581 {
4582 let style = block.style();
4583 let width = match style {
4584 BlockStyle::Fixed => AvailableSpace::MinContent,
4585 BlockStyle::Flex => AvailableSpace::Definite(
4586 hitbox
4587 .size
4588 .width
4589 .max(fixed_block_max_width)
4590 .max(editor_margins.gutter.width + *scroll_width),
4591 ),
4592 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
4593 };
4594
4595 if let Some((element, element_size, _, x_offset)) = self.render_block(
4596 &block,
4597 width,
4598 focused_block.id,
4599 rows.end,
4600 snapshot,
4601 text_x,
4602 &rows,
4603 line_layouts,
4604 editor_margins,
4605 line_height,
4606 em_width,
4607 text_hitbox,
4608 editor_width,
4609 scroll_width,
4610 &mut resized_blocks,
4611 &mut row_block_types,
4612 selections,
4613 selected_buffer_ids,
4614 latest_selection_anchors,
4615 is_row_soft_wrapped,
4616 sticky_header_excerpt_id,
4617 &mut block_resize_offset,
4618 window,
4619 cx,
4620 ) {
4621 blocks.push(BlockLayout {
4622 id: block.id(),
4623 x_offset,
4624 row: None,
4625 element,
4626 available_space: size(width, element_size.height.into()),
4627 style,
4628 overlaps_gutter: true,
4629 is_buffer_header: block.is_buffer_header(),
4630 });
4631 }
4632 }
4633
4634 if resized_blocks.is_empty() {
4635 *scroll_width =
4636 (*scroll_width).max(fixed_block_max_width - editor_margins.gutter.width);
4637 }
4638
4639 RenderBlocksOutput {
4640 blocks,
4641 row_block_types,
4642 resized_blocks: (!resized_blocks.is_empty()).then_some(resized_blocks),
4643 }
4644 }
4645
4646 fn layout_blocks(
4647 &self,
4648 blocks: &mut Vec<BlockLayout>,
4649 hitbox: &Hitbox,
4650 line_height: Pixels,
4651 scroll_position: gpui::Point<ScrollOffset>,
4652 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4653 window: &mut Window,
4654 cx: &mut App,
4655 ) {
4656 for block in blocks {
4657 let mut origin = if let Some(row) = block.row {
4658 hitbox.origin
4659 + point(
4660 block.x_offset,
4661 Pixels::from(
4662 (row.as_f64() - scroll_position.y)
4663 * ScrollPixelOffset::from(line_height),
4664 ),
4665 )
4666 } else {
4667 // Position the block outside the visible area
4668 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
4669 };
4670
4671 if !matches!(block.style, BlockStyle::Sticky) {
4672 origin += point(Pixels::from(-scroll_pixel_position.x), Pixels::ZERO);
4673 }
4674
4675 let focus_handle =
4676 block
4677 .element
4678 .prepaint_as_root(origin, block.available_space, window, cx);
4679
4680 if let Some(focus_handle) = focus_handle {
4681 self.editor.update(cx, |editor, _cx| {
4682 editor.set_focused_block(FocusedBlock {
4683 id: block.id,
4684 focus_handle: focus_handle.downgrade(),
4685 });
4686 });
4687 }
4688 }
4689 }
4690
4691 fn layout_sticky_buffer_header(
4692 &self,
4693 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
4694 scroll_position: gpui::Point<ScrollOffset>,
4695 line_height: Pixels,
4696 right_margin: Pixels,
4697 snapshot: &EditorSnapshot,
4698 hitbox: &Hitbox,
4699 selected_buffer_ids: &Vec<BufferId>,
4700 blocks: &[BlockLayout],
4701 latest_selection_anchors: &HashMap<BufferId, Anchor>,
4702 window: &mut Window,
4703 cx: &mut App,
4704 ) -> AnyElement {
4705 let jump_data = header_jump_data(
4706 snapshot,
4707 DisplayRow(scroll_position.y as u32),
4708 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
4709 excerpt,
4710 latest_selection_anchors,
4711 );
4712
4713 let editor_bg_color = cx.theme().colors().editor_background;
4714
4715 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
4716
4717 let available_width = hitbox.bounds.size.width - right_margin;
4718
4719 let mut header = v_flex()
4720 .w_full()
4721 .relative()
4722 .child(
4723 div()
4724 .w(available_width)
4725 .h(FILE_HEADER_HEIGHT as f32 * line_height)
4726 .bg(linear_gradient(
4727 0.,
4728 linear_color_stop(editor_bg_color.opacity(0.), 0.),
4729 linear_color_stop(editor_bg_color, 0.6),
4730 ))
4731 .absolute()
4732 .top_0(),
4733 )
4734 .child(
4735 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
4736 .into_any_element(),
4737 )
4738 .into_any_element();
4739
4740 let mut origin = hitbox.origin;
4741 // Move floating header up to avoid colliding with the next buffer header.
4742 for block in blocks.iter() {
4743 if !block.is_buffer_header {
4744 continue;
4745 }
4746
4747 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position.y as u32) else {
4748 continue;
4749 };
4750
4751 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
4752 let offset = scroll_position.y - max_row as f64;
4753
4754 if offset > 0.0 {
4755 origin.y -= Pixels::from(offset * ScrollPixelOffset::from(line_height));
4756 }
4757 break;
4758 }
4759
4760 let size = size(
4761 AvailableSpace::Definite(available_width),
4762 AvailableSpace::MinContent,
4763 );
4764
4765 header.prepaint_as_root(origin, size, window, cx);
4766
4767 header
4768 }
4769
4770 fn layout_sticky_headers(
4771 &self,
4772 snapshot: &EditorSnapshot,
4773 editor_width: Pixels,
4774 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4775 line_height: Pixels,
4776 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4777 content_origin: gpui::Point<Pixels>,
4778 gutter_dimensions: &GutterDimensions,
4779 gutter_hitbox: &Hitbox,
4780 text_hitbox: &Hitbox,
4781 style: &EditorStyle,
4782 window: &mut Window,
4783 cx: &mut App,
4784 ) -> Option<StickyHeaders> {
4785 let show_line_numbers = snapshot
4786 .show_line_numbers
4787 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
4788
4789 let rows = Self::sticky_headers(self.editor.read(cx), snapshot, style, cx);
4790
4791 let mut lines = Vec::<StickyHeaderLine>::new();
4792
4793 for StickyHeader {
4794 item,
4795 sticky_row,
4796 start_point,
4797 offset,
4798 } in rows.into_iter().rev()
4799 {
4800 let line = layout_line(
4801 sticky_row,
4802 snapshot,
4803 &self.style,
4804 editor_width,
4805 is_row_soft_wrapped,
4806 window,
4807 cx,
4808 );
4809
4810 let line_number = show_line_numbers.then(|| {
4811 let number = (start_point.row + 1).to_string();
4812 let color = cx.theme().colors().editor_line_number;
4813 self.shape_line_number(SharedString::from(number), color, window)
4814 });
4815
4816 lines.push(StickyHeaderLine::new(
4817 sticky_row,
4818 line_height * offset as f32,
4819 line,
4820 line_number,
4821 item.range.start,
4822 line_height,
4823 scroll_pixel_position,
4824 content_origin,
4825 gutter_hitbox,
4826 text_hitbox,
4827 window,
4828 cx,
4829 ));
4830 }
4831
4832 lines.reverse();
4833 if lines.is_empty() {
4834 return None;
4835 }
4836
4837 Some(StickyHeaders {
4838 lines,
4839 gutter_background: cx.theme().colors().editor_gutter_background,
4840 content_background: self.style.background,
4841 gutter_right_padding: gutter_dimensions.right_padding,
4842 })
4843 }
4844
4845 pub(crate) fn sticky_headers(
4846 editor: &Editor,
4847 snapshot: &EditorSnapshot,
4848 style: &EditorStyle,
4849 cx: &App,
4850 ) -> Vec<StickyHeader> {
4851 let scroll_top = snapshot.scroll_position().y;
4852
4853 let mut end_rows = Vec::<DisplayRow>::new();
4854 let mut rows = Vec::<StickyHeader>::new();
4855
4856 let items = editor.sticky_headers(style, cx).unwrap_or_default();
4857
4858 for item in items {
4859 let start_point = item.range.start.to_point(snapshot.buffer_snapshot());
4860 let end_point = item.range.end.to_point(snapshot.buffer_snapshot());
4861
4862 let sticky_row = snapshot
4863 .display_snapshot
4864 .point_to_display_point(start_point, Bias::Left)
4865 .row();
4866 let end_row = snapshot
4867 .display_snapshot
4868 .point_to_display_point(end_point, Bias::Left)
4869 .row();
4870 let max_sticky_row = end_row.previous_row();
4871 if max_sticky_row <= sticky_row {
4872 continue;
4873 }
4874
4875 while end_rows
4876 .last()
4877 .is_some_and(|&last_end| last_end < sticky_row)
4878 {
4879 end_rows.pop();
4880 }
4881 let depth = end_rows.len();
4882 let adjusted_scroll_top = scroll_top + depth as f64;
4883
4884 if sticky_row.as_f64() >= adjusted_scroll_top || end_row.as_f64() <= adjusted_scroll_top
4885 {
4886 continue;
4887 }
4888
4889 let max_scroll_offset = max_sticky_row.as_f64() - scroll_top;
4890 let offset = (depth as f64).min(max_scroll_offset);
4891
4892 end_rows.push(end_row);
4893 rows.push(StickyHeader {
4894 item,
4895 sticky_row,
4896 start_point,
4897 offset,
4898 });
4899 }
4900
4901 rows
4902 }
4903
4904 fn layout_cursor_popovers(
4905 &self,
4906 line_height: Pixels,
4907 text_hitbox: &Hitbox,
4908 content_origin: gpui::Point<Pixels>,
4909 right_margin: Pixels,
4910 start_row: DisplayRow,
4911 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4912 line_layouts: &[LineWithInvisibles],
4913 cursor: DisplayPoint,
4914 cursor_point: Point,
4915 style: &EditorStyle,
4916 window: &mut Window,
4917 cx: &mut App,
4918 ) -> Option<ContextMenuLayout> {
4919 let mut min_menu_height = Pixels::ZERO;
4920 let mut max_menu_height = Pixels::ZERO;
4921 let mut height_above_menu = Pixels::ZERO;
4922 let height_below_menu = Pixels::ZERO;
4923 let mut edit_prediction_popover_visible = false;
4924 let mut context_menu_visible = false;
4925 let context_menu_placement;
4926
4927 {
4928 let editor = self.editor.read(cx);
4929 if editor.edit_prediction_visible_in_cursor_popover(editor.has_active_edit_prediction())
4930 {
4931 height_above_menu +=
4932 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
4933 edit_prediction_popover_visible = true;
4934 }
4935
4936 if editor.context_menu_visible()
4937 && let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin()
4938 {
4939 let (min_height_in_lines, max_height_in_lines) = editor
4940 .context_menu_options
4941 .as_ref()
4942 .map_or((3, 12), |options| {
4943 (options.min_entries_visible, options.max_entries_visible)
4944 });
4945
4946 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4947 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4948 context_menu_visible = true;
4949 }
4950 context_menu_placement = editor
4951 .context_menu_options
4952 .as_ref()
4953 .and_then(|options| options.placement.clone());
4954 }
4955
4956 let visible = edit_prediction_popover_visible || context_menu_visible;
4957 if !visible {
4958 return None;
4959 }
4960
4961 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
4962 let target_position = content_origin
4963 + gpui::Point {
4964 x: cmp::max(
4965 px(0.),
4966 Pixels::from(
4967 ScrollPixelOffset::from(
4968 cursor_row_layout.x_for_index(cursor.column() as usize),
4969 ) - scroll_pixel_position.x,
4970 ),
4971 ),
4972 y: cmp::max(
4973 px(0.),
4974 Pixels::from(
4975 cursor.row().next_row().as_f64() * ScrollPixelOffset::from(line_height)
4976 - scroll_pixel_position.y,
4977 ),
4978 ),
4979 };
4980
4981 let viewport_bounds =
4982 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4983 right: -right_margin - MENU_GAP,
4984 ..Default::default()
4985 });
4986
4987 let min_height = height_above_menu + min_menu_height + height_below_menu;
4988 let max_height = height_above_menu + max_menu_height + height_below_menu;
4989 let (laid_out_popovers, y_flipped) = self.layout_popovers_above_or_below_line(
4990 target_position,
4991 line_height,
4992 min_height,
4993 max_height,
4994 context_menu_placement,
4995 text_hitbox,
4996 viewport_bounds,
4997 window,
4998 cx,
4999 |height, max_width_for_stable_x, y_flipped, window, cx| {
5000 // First layout the menu to get its size - others can be at least this wide.
5001 let context_menu = if context_menu_visible {
5002 let menu_height = if y_flipped {
5003 height - height_below_menu
5004 } else {
5005 height - height_above_menu
5006 };
5007 let mut element = self
5008 .render_context_menu(line_height, menu_height, window, cx)
5009 .expect("Visible context menu should always render.");
5010 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
5011 Some((CursorPopoverType::CodeContextMenu, element, size))
5012 } else {
5013 None
5014 };
5015 let min_width = context_menu
5016 .as_ref()
5017 .map_or(px(0.), |(_, _, size)| size.width);
5018 let max_width = max_width_for_stable_x.max(
5019 context_menu
5020 .as_ref()
5021 .map_or(px(0.), |(_, _, size)| size.width),
5022 );
5023
5024 let edit_prediction = if edit_prediction_popover_visible {
5025 self.editor.update(cx, move |editor, cx| {
5026 let accept_binding = editor.accept_edit_prediction_keybind(
5027 EditPredictionGranularity::Full,
5028 window,
5029 cx,
5030 );
5031 let mut element = editor.render_edit_prediction_cursor_popover(
5032 min_width,
5033 max_width,
5034 cursor_point,
5035 style,
5036 accept_binding.keystroke(),
5037 window,
5038 cx,
5039 )?;
5040 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
5041 Some((CursorPopoverType::EditPrediction, element, size))
5042 })
5043 } else {
5044 None
5045 };
5046 vec![edit_prediction, context_menu]
5047 .into_iter()
5048 .flatten()
5049 .collect::<Vec<_>>()
5050 },
5051 )?;
5052
5053 let (menu_ix, (_, menu_bounds)) = laid_out_popovers
5054 .iter()
5055 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))?;
5056 let last_ix = laid_out_popovers.len() - 1;
5057 let menu_is_last = menu_ix == last_ix;
5058 let first_popover_bounds = laid_out_popovers[0].1;
5059 let last_popover_bounds = laid_out_popovers[last_ix].1;
5060
5061 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
5062 // right, and otherwise it goes below or to the right.
5063 let mut target_bounds = Bounds::from_corners(
5064 first_popover_bounds.origin,
5065 last_popover_bounds.bottom_right(),
5066 );
5067 target_bounds.size.width = menu_bounds.size.width;
5068
5069 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
5070 // based on this is preferred for layout stability.
5071 let mut max_target_bounds = target_bounds;
5072 max_target_bounds.size.height = max_height;
5073 if y_flipped {
5074 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
5075 }
5076
5077 // Add spacing around `target_bounds` and `max_target_bounds`.
5078 let mut extend_amount = Edges::all(MENU_GAP);
5079 if y_flipped {
5080 extend_amount.bottom = line_height;
5081 } else {
5082 extend_amount.top = line_height;
5083 }
5084 let target_bounds = target_bounds.extend(extend_amount);
5085 let max_target_bounds = max_target_bounds.extend(extend_amount);
5086
5087 let must_place_above_or_below =
5088 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
5089 laid_out_popovers[menu_ix + 1..]
5090 .iter()
5091 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
5092 } else {
5093 false
5094 };
5095
5096 let aside_bounds = self.layout_context_menu_aside(
5097 y_flipped,
5098 *menu_bounds,
5099 target_bounds,
5100 max_target_bounds,
5101 max_menu_height,
5102 must_place_above_or_below,
5103 text_hitbox,
5104 viewport_bounds,
5105 window,
5106 cx,
5107 );
5108
5109 if let Some(menu_bounds) = laid_out_popovers.iter().find_map(|(popover_type, bounds)| {
5110 if matches!(popover_type, CursorPopoverType::CodeContextMenu) {
5111 Some(*bounds)
5112 } else {
5113 None
5114 }
5115 }) {
5116 let bounds = if let Some(aside_bounds) = aside_bounds {
5117 menu_bounds.union(&aside_bounds)
5118 } else {
5119 menu_bounds
5120 };
5121 return Some(ContextMenuLayout { y_flipped, bounds });
5122 }
5123
5124 None
5125 }
5126
5127 fn layout_gutter_menu(
5128 &self,
5129 line_height: Pixels,
5130 text_hitbox: &Hitbox,
5131 content_origin: gpui::Point<Pixels>,
5132 right_margin: Pixels,
5133 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5134 gutter_overshoot: Pixels,
5135 window: &mut Window,
5136 cx: &mut App,
5137 ) {
5138 let editor = self.editor.read(cx);
5139 if !editor.context_menu_visible() {
5140 return;
5141 }
5142 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
5143 editor.context_menu_origin()
5144 else {
5145 return;
5146 };
5147 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
5148 // indicator than just a plain first column of the text field.
5149 let target_position = content_origin
5150 + gpui::Point {
5151 x: -gutter_overshoot,
5152 y: Pixels::from(
5153 gutter_row.next_row().as_f64() * ScrollPixelOffset::from(line_height)
5154 - scroll_pixel_position.y,
5155 ),
5156 };
5157
5158 let (min_height_in_lines, max_height_in_lines) = editor
5159 .context_menu_options
5160 .as_ref()
5161 .map_or((3, 12), |options| {
5162 (options.min_entries_visible, options.max_entries_visible)
5163 });
5164
5165 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
5166 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
5167 let viewport_bounds =
5168 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
5169 right: -right_margin - MENU_GAP,
5170 ..Default::default()
5171 });
5172 self.layout_popovers_above_or_below_line(
5173 target_position,
5174 line_height,
5175 min_height,
5176 max_height,
5177 editor
5178 .context_menu_options
5179 .as_ref()
5180 .and_then(|options| options.placement.clone()),
5181 text_hitbox,
5182 viewport_bounds,
5183 window,
5184 cx,
5185 move |height, _max_width_for_stable_x, _, window, cx| {
5186 let mut element = self
5187 .render_context_menu(line_height, height, window, cx)
5188 .expect("Visible context menu should always render.");
5189 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
5190 vec![(CursorPopoverType::CodeContextMenu, element, size)]
5191 },
5192 );
5193 }
5194
5195 fn layout_popovers_above_or_below_line(
5196 &self,
5197 target_position: gpui::Point<Pixels>,
5198 line_height: Pixels,
5199 min_height: Pixels,
5200 max_height: Pixels,
5201 placement: Option<ContextMenuPlacement>,
5202 text_hitbox: &Hitbox,
5203 viewport_bounds: Bounds<Pixels>,
5204 window: &mut Window,
5205 cx: &mut App,
5206 make_sized_popovers: impl FnOnce(
5207 Pixels,
5208 Pixels,
5209 bool,
5210 &mut Window,
5211 &mut App,
5212 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
5213 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
5214 let text_style = TextStyleRefinement {
5215 line_height: Some(DefiniteLength::Fraction(
5216 BufferLineHeight::Comfortable.value(),
5217 )),
5218 ..Default::default()
5219 };
5220 window.with_text_style(Some(text_style), |window| {
5221 // If the max height won't fit below and there is more space above, put it above the line.
5222 let bottom_y_when_flipped = target_position.y - line_height;
5223 let available_above = bottom_y_when_flipped - text_hitbox.top();
5224 let available_below = text_hitbox.bottom() - target_position.y;
5225 let y_overflows_below = max_height > available_below;
5226 let mut y_flipped = match placement {
5227 Some(ContextMenuPlacement::Above) => true,
5228 Some(ContextMenuPlacement::Below) => false,
5229 None => y_overflows_below && available_above > available_below,
5230 };
5231 let mut height = cmp::min(
5232 max_height,
5233 if y_flipped {
5234 available_above
5235 } else {
5236 available_below
5237 },
5238 );
5239
5240 // If the min height doesn't fit within text bounds, instead fit within the window.
5241 if height < min_height {
5242 let available_above = bottom_y_when_flipped;
5243 let available_below = viewport_bounds.bottom() - target_position.y;
5244 let (y_flipped_override, height_override) = match placement {
5245 Some(ContextMenuPlacement::Above) => {
5246 (true, cmp::min(available_above, min_height))
5247 }
5248 Some(ContextMenuPlacement::Below) => {
5249 (false, cmp::min(available_below, min_height))
5250 }
5251 None => {
5252 if available_below > min_height {
5253 (false, min_height)
5254 } else if available_above > min_height {
5255 (true, min_height)
5256 } else if available_above > available_below {
5257 (true, available_above)
5258 } else {
5259 (false, available_below)
5260 }
5261 }
5262 };
5263 y_flipped = y_flipped_override;
5264 height = height_override;
5265 }
5266
5267 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
5268
5269 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
5270 // for very narrow windows.
5271 let popovers =
5272 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
5273 if popovers.is_empty() {
5274 return None;
5275 }
5276
5277 let max_width = popovers
5278 .iter()
5279 .map(|(_, _, size)| size.width)
5280 .max()
5281 .unwrap_or_default();
5282
5283 let mut current_position = gpui::Point {
5284 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
5285 // overflow. Include space for the scrollbar.
5286 x: target_position
5287 .x
5288 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
5289 y: if y_flipped {
5290 bottom_y_when_flipped
5291 } else {
5292 target_position.y
5293 },
5294 };
5295
5296 let mut laid_out_popovers = popovers
5297 .into_iter()
5298 .map(|(popover_type, element, size)| {
5299 if y_flipped {
5300 current_position.y -= size.height;
5301 }
5302 let position = current_position;
5303 window.defer_draw(element, current_position, 1);
5304 if !y_flipped {
5305 current_position.y += size.height + MENU_GAP;
5306 } else {
5307 current_position.y -= MENU_GAP;
5308 }
5309 (popover_type, Bounds::new(position, size))
5310 })
5311 .collect::<Vec<_>>();
5312
5313 if y_flipped {
5314 laid_out_popovers.reverse();
5315 }
5316
5317 Some((laid_out_popovers, y_flipped))
5318 })
5319 }
5320
5321 fn layout_context_menu_aside(
5322 &self,
5323 y_flipped: bool,
5324 menu_bounds: Bounds<Pixels>,
5325 target_bounds: Bounds<Pixels>,
5326 max_target_bounds: Bounds<Pixels>,
5327 max_height: Pixels,
5328 must_place_above_or_below: bool,
5329 text_hitbox: &Hitbox,
5330 viewport_bounds: Bounds<Pixels>,
5331 window: &mut Window,
5332 cx: &mut App,
5333 ) -> Option<Bounds<Pixels>> {
5334 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
5335 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
5336 && !must_place_above_or_below
5337 {
5338 let max_width = cmp::min(
5339 available_within_viewport.right - px(1.),
5340 MENU_ASIDE_MAX_WIDTH,
5341 );
5342 let mut aside = self.render_context_menu_aside(
5343 size(max_width, max_height - POPOVER_Y_PADDING),
5344 window,
5345 cx,
5346 )?;
5347 let size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5348 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
5349 Some((aside, right_position, size))
5350 } else {
5351 let max_size = size(
5352 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
5353 // won't be needed here.
5354 cmp::min(
5355 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
5356 viewport_bounds.right(),
5357 ),
5358 cmp::min(
5359 max_height,
5360 cmp::max(
5361 available_within_viewport.top,
5362 available_within_viewport.bottom,
5363 ),
5364 ) - POPOVER_Y_PADDING,
5365 );
5366 let mut aside = self.render_context_menu_aside(max_size, window, cx)?;
5367 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5368
5369 let top_position = point(
5370 menu_bounds.origin.x,
5371 target_bounds.top() - actual_size.height,
5372 );
5373 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
5374
5375 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
5376 // Prefer to fit on the same side of the line as the menu, then on the other side of
5377 // the line.
5378 if !y_flipped && wanted.height < available.bottom {
5379 Some(bottom_position)
5380 } else if !y_flipped && wanted.height < available.top {
5381 Some(top_position)
5382 } else if y_flipped && wanted.height < available.top {
5383 Some(top_position)
5384 } else if y_flipped && wanted.height < available.bottom {
5385 Some(bottom_position)
5386 } else {
5387 None
5388 }
5389 };
5390
5391 // Prefer choosing a direction using max sizes rather than actual size for stability.
5392 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
5393 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
5394 let aside_position = fit_within(available_within_text, wanted)
5395 // Fallback: fit max size in window.
5396 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
5397 // Fallback: fit actual size in window.
5398 .or_else(|| fit_within(available_within_viewport, actual_size));
5399
5400 aside_position.map(|position| (aside, position, actual_size))
5401 };
5402
5403 // Skip drawing if it doesn't fit anywhere.
5404 if let Some((aside, position, size)) = positioned_aside {
5405 let aside_bounds = Bounds::new(position, size);
5406 window.defer_draw(aside, position, 2);
5407 return Some(aside_bounds);
5408 }
5409
5410 None
5411 }
5412
5413 fn render_context_menu(
5414 &self,
5415 line_height: Pixels,
5416 height: Pixels,
5417 window: &mut Window,
5418 cx: &mut App,
5419 ) -> Option<AnyElement> {
5420 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
5421 self.editor.update(cx, |editor, cx| {
5422 editor.render_context_menu(max_height_in_lines, window, cx)
5423 })
5424 }
5425
5426 fn render_context_menu_aside(
5427 &self,
5428 max_size: Size<Pixels>,
5429 window: &mut Window,
5430 cx: &mut App,
5431 ) -> Option<AnyElement> {
5432 if max_size.width < px(100.) || max_size.height < px(12.) {
5433 None
5434 } else {
5435 self.editor.update(cx, |editor, cx| {
5436 editor.render_context_menu_aside(max_size, window, cx)
5437 })
5438 }
5439 }
5440
5441 fn layout_mouse_context_menu(
5442 &self,
5443 editor_snapshot: &EditorSnapshot,
5444 visible_range: Range<DisplayRow>,
5445 content_origin: gpui::Point<Pixels>,
5446 window: &mut Window,
5447 cx: &mut App,
5448 ) -> Option<AnyElement> {
5449 let position = self.editor.update(cx, |editor, cx| {
5450 let visible_start_point = editor.display_to_pixel_point(
5451 DisplayPoint::new(visible_range.start, 0),
5452 editor_snapshot,
5453 window,
5454 cx,
5455 )?;
5456 let visible_end_point = editor.display_to_pixel_point(
5457 DisplayPoint::new(visible_range.end, 0),
5458 editor_snapshot,
5459 window,
5460 cx,
5461 )?;
5462
5463 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5464 let (source_display_point, position) = match mouse_context_menu.position {
5465 MenuPosition::PinnedToScreen(point) => (None, point),
5466 MenuPosition::PinnedToEditor { source, offset } => {
5467 let source_display_point = source.to_display_point(editor_snapshot);
5468 let source_point =
5469 editor.to_pixel_point(source, editor_snapshot, window, cx)?;
5470 let position = content_origin + source_point + offset;
5471 (Some(source_display_point), position)
5472 }
5473 };
5474
5475 let source_included = source_display_point.is_none_or(|source_display_point| {
5476 visible_range
5477 .to_inclusive()
5478 .contains(&source_display_point.row())
5479 });
5480 let position_included =
5481 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
5482 if !source_included && !position_included {
5483 None
5484 } else {
5485 Some(position)
5486 }
5487 })?;
5488
5489 let text_style = TextStyleRefinement {
5490 line_height: Some(DefiniteLength::Fraction(
5491 BufferLineHeight::Comfortable.value(),
5492 )),
5493 ..Default::default()
5494 };
5495 window.with_text_style(Some(text_style), |window| {
5496 let mut element = self.editor.read_with(cx, |editor, _| {
5497 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5498 let context_menu = mouse_context_menu.context_menu.clone();
5499
5500 Some(
5501 deferred(
5502 anchored()
5503 .position(position)
5504 .child(context_menu)
5505 .anchor(Corner::TopLeft)
5506 .snap_to_window_with_margin(px(8.)),
5507 )
5508 .with_priority(1)
5509 .into_any(),
5510 )
5511 })?;
5512
5513 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
5514 Some(element)
5515 })
5516 }
5517
5518 fn layout_hover_popovers(
5519 &self,
5520 snapshot: &EditorSnapshot,
5521 hitbox: &Hitbox,
5522 visible_display_row_range: Range<DisplayRow>,
5523 content_origin: gpui::Point<Pixels>,
5524 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5525 line_layouts: &[LineWithInvisibles],
5526 line_height: Pixels,
5527 em_width: Pixels,
5528 context_menu_layout: Option<ContextMenuLayout>,
5529 window: &mut Window,
5530 cx: &mut App,
5531 ) {
5532 struct MeasuredHoverPopover {
5533 element: AnyElement,
5534 size: Size<Pixels>,
5535 horizontal_offset: Pixels,
5536 }
5537
5538 let max_size = size(
5539 (120. * em_width) // Default size
5540 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5541 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5542 (16. * line_height) // Default size
5543 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5544 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5545 );
5546
5547 let hover_popovers = self.editor.update(cx, |editor, cx| {
5548 editor.hover_state.render(
5549 snapshot,
5550 visible_display_row_range.clone(),
5551 max_size,
5552 &editor.text_layout_details(window),
5553 window,
5554 cx,
5555 )
5556 });
5557 let Some((popover_position, hover_popovers)) = hover_popovers else {
5558 return;
5559 };
5560
5561 // This is safe because we check on layout whether the required row is available
5562 let hovered_row_layout = &line_layouts[popover_position
5563 .row()
5564 .minus(visible_display_row_range.start)
5565 as usize];
5566
5567 // Compute Hovered Point
5568 let x = hovered_row_layout.x_for_index(popover_position.column() as usize)
5569 - Pixels::from(scroll_pixel_position.x);
5570 let y = Pixels::from(
5571 popover_position.row().as_f64() * ScrollPixelOffset::from(line_height)
5572 - scroll_pixel_position.y,
5573 );
5574 let hovered_point = content_origin + point(x, y);
5575
5576 let mut overall_height = Pixels::ZERO;
5577 let mut measured_hover_popovers = Vec::new();
5578 for (position, mut hover_popover) in hover_popovers.into_iter().with_position() {
5579 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
5580 let horizontal_offset =
5581 (hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
5582 .min(Pixels::ZERO);
5583 match position {
5584 itertools::Position::Middle | itertools::Position::Last => {
5585 overall_height += HOVER_POPOVER_GAP
5586 }
5587 _ => {}
5588 }
5589 overall_height += size.height;
5590 measured_hover_popovers.push(MeasuredHoverPopover {
5591 element: hover_popover,
5592 size,
5593 horizontal_offset,
5594 });
5595 }
5596
5597 fn draw_occluder(
5598 width: Pixels,
5599 origin: gpui::Point<Pixels>,
5600 window: &mut Window,
5601 cx: &mut App,
5602 ) {
5603 let mut occlusion = div()
5604 .size_full()
5605 .occlude()
5606 .on_mouse_move(|_, _, cx| cx.stop_propagation())
5607 .into_any_element();
5608 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
5609 window.defer_draw(occlusion, origin, 2);
5610 }
5611
5612 fn place_popovers_above(
5613 hovered_point: gpui::Point<Pixels>,
5614 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5615 window: &mut Window,
5616 cx: &mut App,
5617 ) {
5618 let mut current_y = hovered_point.y;
5619 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5620 let size = popover.size;
5621 let popover_origin = point(
5622 hovered_point.x + popover.horizontal_offset,
5623 current_y - size.height,
5624 );
5625
5626 window.defer_draw(popover.element, popover_origin, 2);
5627 if position != itertools::Position::Last {
5628 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
5629 draw_occluder(size.width, origin, window, cx);
5630 }
5631
5632 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5633 }
5634 }
5635
5636 fn place_popovers_below(
5637 hovered_point: gpui::Point<Pixels>,
5638 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5639 line_height: Pixels,
5640 window: &mut Window,
5641 cx: &mut App,
5642 ) {
5643 let mut current_y = hovered_point.y + line_height;
5644 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5645 let size = popover.size;
5646 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5647
5648 window.defer_draw(popover.element, popover_origin, 2);
5649 if position != itertools::Position::Last {
5650 let origin = point(popover_origin.x, popover_origin.y + size.height);
5651 draw_occluder(size.width, origin, window, cx);
5652 }
5653
5654 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5655 }
5656 }
5657
5658 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5659 context_menu_layout
5660 .as_ref()
5661 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5662 };
5663
5664 let can_place_above = {
5665 let mut bounds_above = Vec::new();
5666 let mut current_y = hovered_point.y;
5667 for popover in &measured_hover_popovers {
5668 let size = popover.size;
5669 let popover_origin = point(
5670 hovered_point.x + popover.horizontal_offset,
5671 current_y - size.height,
5672 );
5673 bounds_above.push(Bounds::new(popover_origin, size));
5674 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5675 }
5676 bounds_above
5677 .iter()
5678 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5679 };
5680
5681 let can_place_below = || {
5682 let mut bounds_below = Vec::new();
5683 let mut current_y = hovered_point.y + line_height;
5684 for popover in &measured_hover_popovers {
5685 let size = popover.size;
5686 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5687 bounds_below.push(Bounds::new(popover_origin, size));
5688 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5689 }
5690 bounds_below
5691 .iter()
5692 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5693 };
5694
5695 if can_place_above {
5696 // try placing above hovered point
5697 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5698 } else if can_place_below() {
5699 // try placing below hovered point
5700 place_popovers_below(
5701 hovered_point,
5702 measured_hover_popovers,
5703 line_height,
5704 window,
5705 cx,
5706 );
5707 } else {
5708 // try to place popovers around the context menu
5709 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5710 let total_width = measured_hover_popovers
5711 .iter()
5712 .map(|p| p.size.width)
5713 .max()
5714 .unwrap_or(Pixels::ZERO);
5715 let y_for_horizontal_positioning = if menu.y_flipped {
5716 menu.bounds.bottom() - overall_height
5717 } else {
5718 menu.bounds.top()
5719 };
5720 let possible_origins = vec![
5721 // left of context menu
5722 point(
5723 menu.bounds.left() - total_width - HOVER_POPOVER_GAP,
5724 y_for_horizontal_positioning,
5725 ),
5726 // right of context menu
5727 point(
5728 menu.bounds.right() + HOVER_POPOVER_GAP,
5729 y_for_horizontal_positioning,
5730 ),
5731 // top of context menu
5732 point(
5733 menu.bounds.left(),
5734 menu.bounds.top() - overall_height - HOVER_POPOVER_GAP,
5735 ),
5736 // bottom of context menu
5737 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5738 ];
5739 possible_origins.into_iter().find(|&origin| {
5740 Bounds::new(origin, size(total_width, overall_height))
5741 .is_contained_within(hitbox)
5742 })
5743 });
5744 if let Some(origin) = origin_surrounding_menu {
5745 let mut current_y = origin.y;
5746 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5747 let size = popover.size;
5748 let popover_origin = point(origin.x, current_y);
5749
5750 window.defer_draw(popover.element, popover_origin, 2);
5751 if position != itertools::Position::Last {
5752 let origin = point(popover_origin.x, popover_origin.y + size.height);
5753 draw_occluder(size.width, origin, window, cx);
5754 }
5755
5756 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5757 }
5758 } else {
5759 // fallback to existing above/below cursor logic
5760 // this might overlap menu or overflow in rare case
5761 if can_place_above {
5762 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5763 } else {
5764 place_popovers_below(
5765 hovered_point,
5766 measured_hover_popovers,
5767 line_height,
5768 window,
5769 cx,
5770 );
5771 }
5772 }
5773 }
5774 }
5775
5776 fn layout_word_diff_highlights(
5777 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5778 row_infos: &[RowInfo],
5779 start_row: DisplayRow,
5780 snapshot: &EditorSnapshot,
5781 highlighted_ranges: &mut Vec<(Range<DisplayPoint>, Hsla)>,
5782 cx: &mut App,
5783 ) {
5784 let colors = cx.theme().colors();
5785
5786 let word_highlights = display_hunks
5787 .into_iter()
5788 .filter_map(|(hunk, _)| match hunk {
5789 DisplayDiffHunk::Unfolded {
5790 word_diffs, status, ..
5791 } => Some((word_diffs, status)),
5792 _ => None,
5793 })
5794 .filter(|(_, status)| status.is_modified())
5795 .flat_map(|(word_diffs, _)| word_diffs)
5796 .filter_map(|word_diff| {
5797 let start_point = word_diff.start.to_display_point(&snapshot.display_snapshot);
5798 let end_point = word_diff.end.to_display_point(&snapshot.display_snapshot);
5799 let start_row_offset = start_point.row().0.saturating_sub(start_row.0) as usize;
5800
5801 row_infos
5802 .get(start_row_offset)
5803 .and_then(|row_info| row_info.diff_status)
5804 .and_then(|diff_status| {
5805 let background_color = match diff_status.kind {
5806 DiffHunkStatusKind::Added => colors.version_control_word_added,
5807 DiffHunkStatusKind::Deleted => colors.version_control_word_deleted,
5808 DiffHunkStatusKind::Modified => {
5809 debug_panic!("modified diff status for row info");
5810 return None;
5811 }
5812 };
5813 Some((start_point..end_point, background_color))
5814 })
5815 });
5816
5817 highlighted_ranges.extend(word_highlights);
5818 }
5819
5820 fn layout_diff_hunk_controls(
5821 &self,
5822 row_range: Range<DisplayRow>,
5823 row_infos: &[RowInfo],
5824 text_hitbox: &Hitbox,
5825 newest_cursor_position: Option<DisplayPoint>,
5826 line_height: Pixels,
5827 right_margin: Pixels,
5828 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5829 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5830 highlighted_rows: &BTreeMap<DisplayRow, LineHighlight>,
5831 editor: Entity<Editor>,
5832 window: &mut Window,
5833 cx: &mut App,
5834 ) -> (Vec<AnyElement>, Vec<(DisplayRow, Bounds<Pixels>)>) {
5835 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
5836 let hovered_diff_hunk_row = editor.read(cx).hovered_diff_hunk_row;
5837
5838 let mut controls = vec![];
5839 let mut control_bounds = vec![];
5840
5841 let active_positions = [
5842 hovered_diff_hunk_row.map(|row| DisplayPoint::new(row, 0)),
5843 newest_cursor_position,
5844 ];
5845
5846 for (hunk, _) in display_hunks {
5847 if let DisplayDiffHunk::Unfolded {
5848 display_row_range,
5849 multi_buffer_range,
5850 status,
5851 is_created_file,
5852 ..
5853 } = &hunk
5854 {
5855 if display_row_range.start < row_range.start
5856 || display_row_range.start >= row_range.end
5857 {
5858 continue;
5859 }
5860 if highlighted_rows
5861 .get(&display_row_range.start)
5862 .and_then(|highlight| highlight.type_id)
5863 .is_some_and(|type_id| {
5864 [
5865 TypeId::of::<ConflictsOuter>(),
5866 TypeId::of::<ConflictsOursMarker>(),
5867 TypeId::of::<ConflictsOurs>(),
5868 TypeId::of::<ConflictsTheirs>(),
5869 TypeId::of::<ConflictsTheirsMarker>(),
5870 ]
5871 .contains(&type_id)
5872 })
5873 {
5874 continue;
5875 }
5876 let row_ix = (display_row_range.start - row_range.start).0 as usize;
5877 if row_infos[row_ix].diff_status.is_none() {
5878 continue;
5879 }
5880 if row_infos[row_ix]
5881 .diff_status
5882 .is_some_and(|status| status.is_added())
5883 && !status.is_added()
5884 {
5885 continue;
5886 }
5887
5888 if active_positions
5889 .iter()
5890 .any(|p| p.is_some_and(|p| display_row_range.contains(&p.row())))
5891 {
5892 let y = (display_row_range.start.as_f64()
5893 * ScrollPixelOffset::from(line_height)
5894 + ScrollPixelOffset::from(text_hitbox.bounds.top())
5895 - scroll_pixel_position.y)
5896 .into();
5897
5898 let mut element = render_diff_hunk_controls(
5899 display_row_range.start.0,
5900 status,
5901 multi_buffer_range.clone(),
5902 *is_created_file,
5903 line_height,
5904 &editor,
5905 window,
5906 cx,
5907 );
5908 let size =
5909 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
5910
5911 let x = text_hitbox.bounds.right() - right_margin - px(10.) - size.width;
5912
5913 let bounds = Bounds::new(gpui::Point::new(x, y), size);
5914 control_bounds.push((display_row_range.start, bounds));
5915
5916 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
5917 element.prepaint(window, cx)
5918 });
5919 controls.push(element);
5920 }
5921 }
5922 }
5923
5924 (controls, control_bounds)
5925 }
5926
5927 fn layout_signature_help(
5928 &self,
5929 hitbox: &Hitbox,
5930 content_origin: gpui::Point<Pixels>,
5931 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5932 newest_selection_head: Option<DisplayPoint>,
5933 start_row: DisplayRow,
5934 line_layouts: &[LineWithInvisibles],
5935 line_height: Pixels,
5936 em_width: Pixels,
5937 context_menu_layout: Option<ContextMenuLayout>,
5938 window: &mut Window,
5939 cx: &mut App,
5940 ) {
5941 if !self.editor.focus_handle(cx).is_focused(window) {
5942 return;
5943 }
5944 let Some(newest_selection_head) = newest_selection_head else {
5945 return;
5946 };
5947
5948 let max_size = size(
5949 (120. * em_width) // Default size
5950 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5951 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5952 (16. * line_height) // Default size
5953 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5954 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5955 );
5956
5957 let maybe_element = self.editor.update(cx, |editor, cx| {
5958 if let Some(popover) = editor.signature_help_state.popover_mut() {
5959 let element = popover.render(max_size, window, cx);
5960 Some(element)
5961 } else {
5962 None
5963 }
5964 });
5965 let Some(mut element) = maybe_element else {
5966 return;
5967 };
5968
5969 let selection_row = newest_selection_head.row();
5970 let Some(cursor_row_layout) = (selection_row >= start_row)
5971 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
5972 .flatten()
5973 else {
5974 return;
5975 };
5976
5977 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
5978 - Pixels::from(scroll_pixel_position.x);
5979 let target_y = Pixels::from(
5980 selection_row.as_f64() * ScrollPixelOffset::from(line_height) - scroll_pixel_position.y,
5981 );
5982 let target_point = content_origin + point(target_x, target_y);
5983
5984 let actual_size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
5985
5986 let (popover_bounds_above, popover_bounds_below) = {
5987 let horizontal_offset = (hitbox.top_right().x
5988 - POPOVER_RIGHT_OFFSET
5989 - (target_point.x + actual_size.width))
5990 .min(Pixels::ZERO);
5991 let initial_x = target_point.x + horizontal_offset;
5992 (
5993 Bounds::new(
5994 point(initial_x, target_point.y - actual_size.height),
5995 actual_size,
5996 ),
5997 Bounds::new(
5998 point(initial_x, target_point.y + line_height + HOVER_POPOVER_GAP),
5999 actual_size,
6000 ),
6001 )
6002 };
6003
6004 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
6005 context_menu_layout
6006 .as_ref()
6007 .is_some_and(|menu| bounds.intersects(&menu.bounds))
6008 };
6009
6010 let final_origin = if popover_bounds_above.is_contained_within(hitbox)
6011 && !intersects_menu(popover_bounds_above)
6012 {
6013 // try placing above cursor
6014 popover_bounds_above.origin
6015 } else if popover_bounds_below.is_contained_within(hitbox)
6016 && !intersects_menu(popover_bounds_below)
6017 {
6018 // try placing below cursor
6019 popover_bounds_below.origin
6020 } else {
6021 // try surrounding context menu if exists
6022 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
6023 let y_for_horizontal_positioning = if menu.y_flipped {
6024 menu.bounds.bottom() - actual_size.height
6025 } else {
6026 menu.bounds.top()
6027 };
6028 let possible_origins = vec![
6029 // left of context menu
6030 point(
6031 menu.bounds.left() - actual_size.width - HOVER_POPOVER_GAP,
6032 y_for_horizontal_positioning,
6033 ),
6034 // right of context menu
6035 point(
6036 menu.bounds.right() + HOVER_POPOVER_GAP,
6037 y_for_horizontal_positioning,
6038 ),
6039 // top of context menu
6040 point(
6041 menu.bounds.left(),
6042 menu.bounds.top() - actual_size.height - HOVER_POPOVER_GAP,
6043 ),
6044 // bottom of context menu
6045 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
6046 ];
6047 possible_origins
6048 .into_iter()
6049 .find(|&origin| Bounds::new(origin, actual_size).is_contained_within(hitbox))
6050 });
6051 origin_surrounding_menu.unwrap_or_else(|| {
6052 // fallback to existing above/below cursor logic
6053 // this might overlap menu or overflow in rare case
6054 if popover_bounds_above.is_contained_within(hitbox) {
6055 popover_bounds_above.origin
6056 } else {
6057 popover_bounds_below.origin
6058 }
6059 })
6060 };
6061
6062 window.defer_draw(element, final_origin, 2);
6063 }
6064
6065 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
6066 window.paint_layer(layout.hitbox.bounds, |window| {
6067 let scroll_top = layout.position_map.snapshot.scroll_position().y;
6068 let gutter_bg = cx.theme().colors().editor_gutter_background;
6069 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
6070 window.paint_quad(fill(
6071 layout.position_map.text_hitbox.bounds,
6072 self.style.background,
6073 ));
6074
6075 if matches!(
6076 layout.mode,
6077 EditorMode::Full { .. } | EditorMode::Minimap { .. }
6078 ) {
6079 let show_active_line_background = match layout.mode {
6080 EditorMode::Full {
6081 show_active_line_background,
6082 ..
6083 } => show_active_line_background,
6084 EditorMode::Minimap { .. } => true,
6085 _ => false,
6086 };
6087 let mut active_rows = layout.active_rows.iter().peekable();
6088 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
6089 let mut end_row = start_row.0;
6090 while active_rows
6091 .peek()
6092 .is_some_and(|(active_row, has_selection)| {
6093 active_row.0 == end_row + 1
6094 && has_selection.selection == contains_non_empty_selection.selection
6095 })
6096 {
6097 active_rows.next().unwrap();
6098 end_row += 1;
6099 }
6100
6101 if show_active_line_background && !contains_non_empty_selection.selection {
6102 let highlight_h_range =
6103 match layout.position_map.snapshot.current_line_highlight {
6104 CurrentLineHighlight::Gutter => Some(Range {
6105 start: layout.hitbox.left(),
6106 end: layout.gutter_hitbox.right(),
6107 }),
6108 CurrentLineHighlight::Line => Some(Range {
6109 start: layout.position_map.text_hitbox.bounds.left(),
6110 end: layout.position_map.text_hitbox.bounds.right(),
6111 }),
6112 CurrentLineHighlight::All => Some(Range {
6113 start: layout.hitbox.left(),
6114 end: layout.hitbox.right(),
6115 }),
6116 CurrentLineHighlight::None => None,
6117 };
6118 if let Some(range) = highlight_h_range {
6119 let active_line_bg = cx.theme().colors().editor_active_line_background;
6120 let bounds = Bounds {
6121 origin: point(
6122 range.start,
6123 layout.hitbox.origin.y
6124 + Pixels::from(
6125 (start_row.as_f64() - scroll_top)
6126 * ScrollPixelOffset::from(
6127 layout.position_map.line_height,
6128 ),
6129 ),
6130 ),
6131 size: size(
6132 range.end - range.start,
6133 layout.position_map.line_height
6134 * (end_row - start_row.0 + 1) as f32,
6135 ),
6136 };
6137 window.paint_quad(fill(bounds, active_line_bg));
6138 }
6139 }
6140 }
6141
6142 let mut paint_highlight = |highlight_row_start: DisplayRow,
6143 highlight_row_end: DisplayRow,
6144 highlight: crate::LineHighlight,
6145 edges| {
6146 let mut origin_x = layout.hitbox.left();
6147 let mut width = layout.hitbox.size.width;
6148 if !highlight.include_gutter {
6149 origin_x += layout.gutter_hitbox.size.width;
6150 width -= layout.gutter_hitbox.size.width;
6151 }
6152
6153 let origin = point(
6154 origin_x,
6155 layout.hitbox.origin.y
6156 + Pixels::from(
6157 (highlight_row_start.as_f64() - scroll_top)
6158 * ScrollPixelOffset::from(layout.position_map.line_height),
6159 ),
6160 );
6161 let size = size(
6162 width,
6163 layout.position_map.line_height
6164 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
6165 );
6166 let mut quad = fill(Bounds { origin, size }, highlight.background);
6167 if let Some(border_color) = highlight.border {
6168 quad.border_color = border_color;
6169 quad.border_widths = edges
6170 }
6171 window.paint_quad(quad);
6172 };
6173
6174 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
6175 None;
6176 for (&new_row, &new_background) in &layout.highlighted_rows {
6177 match &mut current_paint {
6178 &mut Some((current_background, ref mut current_range, mut edges)) => {
6179 let new_range_started = current_background != new_background
6180 || current_range.end.next_row() != new_row;
6181 if new_range_started {
6182 if current_range.end.next_row() == new_row {
6183 edges.bottom = px(0.);
6184 };
6185 paint_highlight(
6186 current_range.start,
6187 current_range.end,
6188 current_background,
6189 edges,
6190 );
6191 let edges = Edges {
6192 top: if current_range.end.next_row() != new_row {
6193 px(1.)
6194 } else {
6195 px(0.)
6196 },
6197 bottom: px(1.),
6198 ..Default::default()
6199 };
6200 current_paint = Some((new_background, new_row..new_row, edges));
6201 continue;
6202 } else {
6203 current_range.end = current_range.end.next_row();
6204 }
6205 }
6206 None => {
6207 let edges = Edges {
6208 top: px(1.),
6209 bottom: px(1.),
6210 ..Default::default()
6211 };
6212 current_paint = Some((new_background, new_row..new_row, edges))
6213 }
6214 };
6215 }
6216 if let Some((color, range, edges)) = current_paint {
6217 paint_highlight(range.start, range.end, color, edges);
6218 }
6219
6220 for (guide_x, active) in layout.wrap_guides.iter() {
6221 let color = if *active {
6222 cx.theme().colors().editor_active_wrap_guide
6223 } else {
6224 cx.theme().colors().editor_wrap_guide
6225 };
6226 window.paint_quad(fill(
6227 Bounds {
6228 origin: point(*guide_x, layout.position_map.text_hitbox.origin.y),
6229 size: size(px(1.), layout.position_map.text_hitbox.size.height),
6230 },
6231 color,
6232 ));
6233 }
6234 }
6235 })
6236 }
6237
6238 fn paint_indent_guides(
6239 &mut self,
6240 layout: &mut EditorLayout,
6241 window: &mut Window,
6242 cx: &mut App,
6243 ) {
6244 let Some(indent_guides) = &layout.indent_guides else {
6245 return;
6246 };
6247
6248 let faded_color = |color: Hsla, alpha: f32| {
6249 let mut faded = color;
6250 faded.a = alpha;
6251 faded
6252 };
6253
6254 for indent_guide in indent_guides {
6255 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
6256 let settings = &indent_guide.settings;
6257
6258 // TODO fixed for now, expose them through themes later
6259 const INDENT_AWARE_ALPHA: f32 = 0.2;
6260 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
6261 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
6262 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
6263
6264 let line_color = match (settings.coloring, indent_guide.active) {
6265 (IndentGuideColoring::Disabled, _) => None,
6266 (IndentGuideColoring::Fixed, false) => {
6267 Some(cx.theme().colors().editor_indent_guide)
6268 }
6269 (IndentGuideColoring::Fixed, true) => {
6270 Some(cx.theme().colors().editor_indent_guide_active)
6271 }
6272 (IndentGuideColoring::IndentAware, false) => {
6273 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
6274 }
6275 (IndentGuideColoring::IndentAware, true) => {
6276 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
6277 }
6278 };
6279
6280 let background_color = match (settings.background_coloring, indent_guide.active) {
6281 (IndentGuideBackgroundColoring::Disabled, _) => None,
6282 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
6283 indent_accent_colors,
6284 INDENT_AWARE_BACKGROUND_ALPHA,
6285 )),
6286 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
6287 indent_accent_colors,
6288 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
6289 )),
6290 };
6291
6292 let requested_line_width = if indent_guide.active {
6293 settings.active_line_width
6294 } else {
6295 settings.line_width
6296 }
6297 .clamp(1, 10);
6298 let mut line_indicator_width = 0.;
6299 if let Some(color) = line_color {
6300 window.paint_quad(fill(
6301 Bounds {
6302 origin: indent_guide.origin,
6303 size: size(px(requested_line_width as f32), indent_guide.length),
6304 },
6305 color,
6306 ));
6307 line_indicator_width = requested_line_width as f32;
6308 }
6309
6310 if let Some(color) = background_color {
6311 let width = indent_guide.single_indent_width - px(line_indicator_width);
6312 window.paint_quad(fill(
6313 Bounds {
6314 origin: point(
6315 indent_guide.origin.x + px(line_indicator_width),
6316 indent_guide.origin.y,
6317 ),
6318 size: size(width, indent_guide.length),
6319 },
6320 color,
6321 ));
6322 }
6323 }
6324 }
6325
6326 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6327 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
6328
6329 let line_height = layout.position_map.line_height;
6330 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
6331
6332 for line_layout in layout.line_numbers.values() {
6333 for LineNumberSegment {
6334 shaped_line,
6335 hitbox,
6336 } in &line_layout.segments
6337 {
6338 let Some(hitbox) = hitbox else {
6339 continue;
6340 };
6341
6342 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
6343 let color = cx.theme().colors().editor_hover_line_number;
6344
6345 let line = self.shape_line_number(shaped_line.text.clone(), color, window);
6346 line.paint(hitbox.origin, line_height, window, cx).log_err()
6347 } else {
6348 shaped_line
6349 .paint(hitbox.origin, line_height, window, cx)
6350 .log_err()
6351 }) else {
6352 continue;
6353 };
6354
6355 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
6356 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
6357 if is_singleton {
6358 window.set_cursor_style(CursorStyle::IBeam, hitbox);
6359 } else {
6360 window.set_cursor_style(CursorStyle::PointingHand, hitbox);
6361 }
6362 }
6363 }
6364 }
6365
6366 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6367 if layout.display_hunks.is_empty() {
6368 return;
6369 }
6370
6371 let line_height = layout.position_map.line_height;
6372 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6373 for (hunk, hitbox) in &layout.display_hunks {
6374 let hunk_to_paint = match hunk {
6375 DisplayDiffHunk::Folded { .. } => {
6376 let hunk_bounds = Self::diff_hunk_bounds(
6377 &layout.position_map.snapshot,
6378 line_height,
6379 layout.gutter_hitbox.bounds,
6380 hunk,
6381 );
6382 Some((
6383 hunk_bounds,
6384 cx.theme().colors().version_control_modified,
6385 Corners::all(px(0.)),
6386 DiffHunkStatus::modified_none(),
6387 ))
6388 }
6389 DisplayDiffHunk::Unfolded {
6390 status,
6391 display_row_range,
6392 ..
6393 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
6394 DiffHunkStatusKind::Added => (
6395 hunk_hitbox.bounds,
6396 cx.theme().colors().version_control_added,
6397 Corners::all(px(0.)),
6398 *status,
6399 ),
6400 DiffHunkStatusKind::Modified => (
6401 hunk_hitbox.bounds,
6402 cx.theme().colors().version_control_modified,
6403 Corners::all(px(0.)),
6404 *status,
6405 ),
6406 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
6407 hunk_hitbox.bounds,
6408 cx.theme().colors().version_control_deleted,
6409 Corners::all(px(0.)),
6410 *status,
6411 ),
6412 DiffHunkStatusKind::Deleted => (
6413 Bounds::new(
6414 point(
6415 hunk_hitbox.origin.x - hunk_hitbox.size.width,
6416 hunk_hitbox.origin.y,
6417 ),
6418 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
6419 ),
6420 cx.theme().colors().version_control_deleted,
6421 Corners::all(1. * line_height),
6422 *status,
6423 ),
6424 }),
6425 };
6426
6427 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
6428 // Flatten the background color with the editor color to prevent
6429 // elements below transparent hunks from showing through
6430 let flattened_background_color = cx
6431 .theme()
6432 .colors()
6433 .editor_background
6434 .blend(background_color);
6435
6436 if !Self::diff_hunk_hollow(status, cx) {
6437 window.paint_quad(quad(
6438 hunk_bounds,
6439 corner_radii,
6440 flattened_background_color,
6441 Edges::default(),
6442 transparent_black(),
6443 BorderStyle::default(),
6444 ));
6445 } else {
6446 let flattened_unstaged_background_color = cx
6447 .theme()
6448 .colors()
6449 .editor_background
6450 .blend(background_color.opacity(0.3));
6451
6452 window.paint_quad(quad(
6453 hunk_bounds,
6454 corner_radii,
6455 flattened_unstaged_background_color,
6456 Edges::all(px(1.0)),
6457 flattened_background_color,
6458 BorderStyle::Solid,
6459 ));
6460 }
6461 }
6462 }
6463 });
6464 }
6465
6466 fn gutter_strip_width(line_height: Pixels) -> Pixels {
6467 (0.275 * line_height).floor()
6468 }
6469
6470 fn diff_hunk_bounds(
6471 snapshot: &EditorSnapshot,
6472 line_height: Pixels,
6473 gutter_bounds: Bounds<Pixels>,
6474 hunk: &DisplayDiffHunk,
6475 ) -> Bounds<Pixels> {
6476 let scroll_position = snapshot.scroll_position();
6477 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
6478 let gutter_strip_width = Self::gutter_strip_width(line_height);
6479
6480 match hunk {
6481 DisplayDiffHunk::Folded { display_row, .. } => {
6482 let start_y = (display_row.as_f64() * ScrollPixelOffset::from(line_height)
6483 - scroll_top)
6484 .into();
6485 let end_y = start_y + line_height;
6486 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6487 let highlight_size = size(gutter_strip_width, end_y - start_y);
6488 Bounds::new(highlight_origin, highlight_size)
6489 }
6490 DisplayDiffHunk::Unfolded {
6491 display_row_range,
6492 status,
6493 ..
6494 } => {
6495 if status.is_deleted() && display_row_range.is_empty() {
6496 let row = display_row_range.start;
6497
6498 let offset = ScrollPixelOffset::from(line_height / 2.);
6499 let start_y =
6500 (row.as_f64() * ScrollPixelOffset::from(line_height) - offset - scroll_top)
6501 .into();
6502 let end_y = start_y + line_height;
6503
6504 let width = (0.35 * line_height).floor();
6505 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6506 let highlight_size = size(width, end_y - start_y);
6507 Bounds::new(highlight_origin, highlight_size)
6508 } else {
6509 let start_row = display_row_range.start;
6510 let end_row = display_row_range.end;
6511 // If we're in a multibuffer, row range span might include an
6512 // excerpt header, so if we were to draw the marker straight away,
6513 // the hunk might include the rows of that header.
6514 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
6515 // Instead, we simply check whether the range we're dealing with includes
6516 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
6517 let end_row_in_current_excerpt = snapshot
6518 .blocks_in_range(start_row..end_row)
6519 .find_map(|(start_row, block)| {
6520 if matches!(
6521 block,
6522 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
6523 ) {
6524 Some(start_row)
6525 } else {
6526 None
6527 }
6528 })
6529 .unwrap_or(end_row);
6530
6531 let start_y = (start_row.as_f64() * ScrollPixelOffset::from(line_height)
6532 - scroll_top)
6533 .into();
6534 let end_y = Pixels::from(
6535 end_row_in_current_excerpt.as_f64() * ScrollPixelOffset::from(line_height)
6536 - scroll_top,
6537 );
6538
6539 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6540 let highlight_size = size(gutter_strip_width, end_y - start_y);
6541 Bounds::new(highlight_origin, highlight_size)
6542 }
6543 }
6544 }
6545 }
6546
6547 fn paint_gutter_indicators(
6548 &self,
6549 layout: &mut EditorLayout,
6550 window: &mut Window,
6551 cx: &mut App,
6552 ) {
6553 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6554 window.with_element_namespace("crease_toggles", |window| {
6555 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
6556 crease_toggle.paint(window, cx);
6557 }
6558 });
6559
6560 window.with_element_namespace("expand_toggles", |window| {
6561 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
6562 expand_toggle.paint(window, cx);
6563 }
6564 });
6565
6566 for breakpoint in layout.breakpoints.iter_mut() {
6567 breakpoint.paint(window, cx);
6568 }
6569
6570 for test_indicator in layout.test_indicators.iter_mut() {
6571 test_indicator.paint(window, cx);
6572 }
6573 });
6574 }
6575
6576 fn paint_gutter_highlights(
6577 &self,
6578 layout: &mut EditorLayout,
6579 window: &mut Window,
6580 cx: &mut App,
6581 ) {
6582 for (_, hunk_hitbox) in &layout.display_hunks {
6583 if let Some(hunk_hitbox) = hunk_hitbox
6584 && !self
6585 .editor
6586 .read(cx)
6587 .buffer()
6588 .read(cx)
6589 .all_diff_hunks_expanded()
6590 {
6591 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
6592 }
6593 }
6594
6595 let show_git_gutter = layout
6596 .position_map
6597 .snapshot
6598 .show_git_diff_gutter
6599 .unwrap_or_else(|| {
6600 matches!(
6601 ProjectSettings::get_global(cx).git.git_gutter,
6602 GitGutterSetting::TrackedFiles
6603 )
6604 });
6605 if show_git_gutter {
6606 Self::paint_gutter_diff_hunks(layout, window, cx)
6607 }
6608
6609 let highlight_width = 0.275 * layout.position_map.line_height;
6610 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
6611 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6612 for (range, color) in &layout.highlighted_gutter_ranges {
6613 let start_row = if range.start.row() < layout.visible_display_row_range.start {
6614 layout.visible_display_row_range.start - DisplayRow(1)
6615 } else {
6616 range.start.row()
6617 };
6618 let end_row = if range.end.row() > layout.visible_display_row_range.end {
6619 layout.visible_display_row_range.end + DisplayRow(1)
6620 } else {
6621 range.end.row()
6622 };
6623
6624 let start_y = layout.gutter_hitbox.top()
6625 + Pixels::from(
6626 start_row.0 as f64
6627 * ScrollPixelOffset::from(layout.position_map.line_height)
6628 - layout.position_map.scroll_pixel_position.y,
6629 );
6630 let end_y = layout.gutter_hitbox.top()
6631 + Pixels::from(
6632 (end_row.0 + 1) as f64
6633 * ScrollPixelOffset::from(layout.position_map.line_height)
6634 - layout.position_map.scroll_pixel_position.y,
6635 );
6636 let bounds = Bounds::from_corners(
6637 point(layout.gutter_hitbox.left(), start_y),
6638 point(layout.gutter_hitbox.left() + highlight_width, end_y),
6639 );
6640 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
6641 }
6642 });
6643 }
6644
6645 fn paint_blamed_display_rows(
6646 &self,
6647 layout: &mut EditorLayout,
6648 window: &mut Window,
6649 cx: &mut App,
6650 ) {
6651 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
6652 return;
6653 };
6654
6655 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6656 for mut blame_element in blamed_display_rows.into_iter() {
6657 blame_element.paint(window, cx);
6658 }
6659 })
6660 }
6661
6662 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6663 window.with_content_mask(
6664 Some(ContentMask {
6665 bounds: layout.position_map.text_hitbox.bounds,
6666 }),
6667 |window| {
6668 let editor = self.editor.read(cx);
6669 if editor.mouse_cursor_hidden {
6670 window.set_window_cursor_style(CursorStyle::None);
6671 } else if let SelectionDragState::ReadyToDrag {
6672 mouse_down_time, ..
6673 } = &editor.selection_drag_state
6674 {
6675 let drag_and_drop_delay = Duration::from_millis(
6676 EditorSettings::get_global(cx)
6677 .drag_and_drop_selection
6678 .delay
6679 .0,
6680 );
6681 if mouse_down_time.elapsed() >= drag_and_drop_delay {
6682 window.set_cursor_style(
6683 CursorStyle::DragCopy,
6684 &layout.position_map.text_hitbox,
6685 );
6686 }
6687 } else if matches!(
6688 editor.selection_drag_state,
6689 SelectionDragState::Dragging { .. }
6690 ) {
6691 window
6692 .set_cursor_style(CursorStyle::DragCopy, &layout.position_map.text_hitbox);
6693 } else if editor
6694 .hovered_link_state
6695 .as_ref()
6696 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
6697 {
6698 window.set_cursor_style(
6699 CursorStyle::PointingHand,
6700 &layout.position_map.text_hitbox,
6701 );
6702 } else {
6703 window.set_cursor_style(CursorStyle::IBeam, &layout.position_map.text_hitbox);
6704 };
6705
6706 self.paint_lines_background(layout, window, cx);
6707 let invisible_display_ranges = self.paint_highlights(layout, window, cx);
6708 self.paint_document_colors(layout, window);
6709 self.paint_lines(&invisible_display_ranges, layout, window, cx);
6710 self.paint_redactions(layout, window);
6711 self.paint_cursors(layout, window, cx);
6712 self.paint_inline_diagnostics(layout, window, cx);
6713 self.paint_inline_blame(layout, window, cx);
6714 self.paint_inline_code_actions(layout, window, cx);
6715 self.paint_diff_hunk_controls(layout, window, cx);
6716 window.with_element_namespace("crease_trailers", |window| {
6717 for trailer in layout.crease_trailers.iter_mut().flatten() {
6718 trailer.element.paint(window, cx);
6719 }
6720 });
6721 },
6722 )
6723 }
6724
6725 fn paint_highlights(
6726 &mut self,
6727 layout: &mut EditorLayout,
6728 window: &mut Window,
6729 cx: &mut App,
6730 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
6731 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6732 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
6733 let line_end_overshoot = 0.15 * layout.position_map.line_height;
6734 for (range, color) in &layout.highlighted_ranges {
6735 self.paint_highlighted_range(
6736 range.clone(),
6737 true,
6738 *color,
6739 Pixels::ZERO,
6740 line_end_overshoot,
6741 layout,
6742 window,
6743 );
6744 }
6745
6746 let corner_radius = if EditorSettings::get_global(cx).rounded_selection {
6747 0.15 * layout.position_map.line_height
6748 } else {
6749 Pixels::ZERO
6750 };
6751
6752 for (player_color, selections) in &layout.selections {
6753 for selection in selections.iter() {
6754 self.paint_highlighted_range(
6755 selection.range.clone(),
6756 true,
6757 player_color.selection,
6758 corner_radius,
6759 corner_radius * 2.,
6760 layout,
6761 window,
6762 );
6763
6764 if selection.is_local && !selection.range.is_empty() {
6765 invisible_display_ranges.push(selection.range.clone());
6766 }
6767 }
6768 }
6769 invisible_display_ranges
6770 })
6771 }
6772
6773 fn paint_lines(
6774 &mut self,
6775 invisible_display_ranges: &[Range<DisplayPoint>],
6776 layout: &mut EditorLayout,
6777 window: &mut Window,
6778 cx: &mut App,
6779 ) {
6780 let whitespace_setting = self
6781 .editor
6782 .read(cx)
6783 .buffer
6784 .read(cx)
6785 .language_settings(cx)
6786 .show_whitespaces;
6787
6788 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6789 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6790 line_with_invisibles.draw(
6791 layout,
6792 row,
6793 layout.content_origin,
6794 whitespace_setting,
6795 invisible_display_ranges,
6796 window,
6797 cx,
6798 )
6799 }
6800
6801 for line_element in &mut layout.line_elements {
6802 line_element.paint(window, cx);
6803 }
6804 }
6805
6806 fn paint_sticky_headers(
6807 &mut self,
6808 layout: &mut EditorLayout,
6809 window: &mut Window,
6810 cx: &mut App,
6811 ) {
6812 let Some(mut sticky_headers) = layout.sticky_headers.take() else {
6813 return;
6814 };
6815
6816 if sticky_headers.lines.is_empty() {
6817 layout.sticky_headers = Some(sticky_headers);
6818 return;
6819 }
6820
6821 let whitespace_setting = self
6822 .editor
6823 .read(cx)
6824 .buffer
6825 .read(cx)
6826 .language_settings(cx)
6827 .show_whitespaces;
6828 sticky_headers.paint(layout, whitespace_setting, window, cx);
6829
6830 let sticky_header_hitboxes: Vec<Hitbox> = sticky_headers
6831 .lines
6832 .iter()
6833 .map(|line| line.hitbox.clone())
6834 .collect();
6835 let hovered_hitbox = sticky_header_hitboxes
6836 .iter()
6837 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6838
6839 window.on_mouse_event(move |_: &MouseMoveEvent, phase, window, _cx| {
6840 if !phase.bubble() {
6841 return;
6842 }
6843
6844 let current_hover = sticky_header_hitboxes
6845 .iter()
6846 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6847 if hovered_hitbox != current_hover {
6848 window.refresh();
6849 }
6850 });
6851
6852 for (line_index, line) in sticky_headers.lines.iter().enumerate() {
6853 let editor = self.editor.clone();
6854 let hitbox = line.hitbox.clone();
6855 let target_anchor = line.target_anchor;
6856 window.on_mouse_event(move |event: &MouseDownEvent, phase, window, cx| {
6857 if !phase.bubble() {
6858 return;
6859 }
6860
6861 if event.button == MouseButton::Left && hitbox.is_hovered(window) {
6862 editor.update(cx, |editor, cx| {
6863 editor.change_selections(
6864 SelectionEffects::scroll(Autoscroll::top_relative(line_index)),
6865 window,
6866 cx,
6867 |selections| selections.select_ranges([target_anchor..target_anchor]),
6868 );
6869 cx.stop_propagation();
6870 });
6871 }
6872 });
6873 }
6874
6875 let text_bounds = layout.position_map.text_hitbox.bounds;
6876 let border_top = text_bounds.top()
6877 + sticky_headers.lines.last().unwrap().offset
6878 + layout.position_map.line_height;
6879 let separator_height = px(1.);
6880 let border_bounds = Bounds::from_corners(
6881 point(layout.gutter_hitbox.bounds.left(), border_top),
6882 point(text_bounds.right(), border_top + separator_height),
6883 );
6884 window.paint_quad(fill(border_bounds, cx.theme().colors().border_variant));
6885
6886 layout.sticky_headers = Some(sticky_headers);
6887 }
6888
6889 fn paint_lines_background(
6890 &mut self,
6891 layout: &mut EditorLayout,
6892 window: &mut Window,
6893 cx: &mut App,
6894 ) {
6895 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6896 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6897 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
6898 }
6899 }
6900
6901 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
6902 if layout.redacted_ranges.is_empty() {
6903 return;
6904 }
6905
6906 let line_end_overshoot = layout.line_end_overshoot();
6907
6908 // A softer than perfect black
6909 let redaction_color = gpui::rgb(0x0e1111);
6910
6911 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6912 for range in layout.redacted_ranges.iter() {
6913 self.paint_highlighted_range(
6914 range.clone(),
6915 true,
6916 redaction_color.into(),
6917 Pixels::ZERO,
6918 line_end_overshoot,
6919 layout,
6920 window,
6921 );
6922 }
6923 });
6924 }
6925
6926 fn paint_document_colors(&self, layout: &mut EditorLayout, window: &mut Window) {
6927 let Some((colors_render_mode, image_colors)) = &layout.document_colors else {
6928 return;
6929 };
6930 if image_colors.is_empty()
6931 || colors_render_mode == &DocumentColorsRenderMode::None
6932 || colors_render_mode == &DocumentColorsRenderMode::Inlay
6933 {
6934 return;
6935 }
6936
6937 let line_end_overshoot = layout.line_end_overshoot();
6938
6939 for (range, color) in image_colors {
6940 match colors_render_mode {
6941 DocumentColorsRenderMode::Inlay | DocumentColorsRenderMode::None => return,
6942 DocumentColorsRenderMode::Background => {
6943 self.paint_highlighted_range(
6944 range.clone(),
6945 true,
6946 *color,
6947 Pixels::ZERO,
6948 line_end_overshoot,
6949 layout,
6950 window,
6951 );
6952 }
6953 DocumentColorsRenderMode::Border => {
6954 self.paint_highlighted_range(
6955 range.clone(),
6956 false,
6957 *color,
6958 Pixels::ZERO,
6959 line_end_overshoot,
6960 layout,
6961 window,
6962 );
6963 }
6964 }
6965 }
6966 }
6967
6968 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6969 for cursor in &mut layout.visible_cursors {
6970 cursor.paint(layout.content_origin, window, cx);
6971 }
6972 }
6973
6974 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6975 let Some(scrollbars_layout) = layout.scrollbars_layout.take() else {
6976 return;
6977 };
6978 let any_scrollbar_dragged = self.editor.read(cx).scroll_manager.any_scrollbar_dragged();
6979
6980 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
6981 let hitbox = &scrollbar_layout.hitbox;
6982 if scrollbars_layout.visible {
6983 let scrollbar_edges = match axis {
6984 ScrollbarAxis::Horizontal => Edges {
6985 top: Pixels::ZERO,
6986 right: Pixels::ZERO,
6987 bottom: Pixels::ZERO,
6988 left: Pixels::ZERO,
6989 },
6990 ScrollbarAxis::Vertical => Edges {
6991 top: Pixels::ZERO,
6992 right: Pixels::ZERO,
6993 bottom: Pixels::ZERO,
6994 left: ScrollbarLayout::BORDER_WIDTH,
6995 },
6996 };
6997
6998 window.paint_layer(hitbox.bounds, |window| {
6999 window.paint_quad(quad(
7000 hitbox.bounds,
7001 Corners::default(),
7002 cx.theme().colors().scrollbar_track_background,
7003 scrollbar_edges,
7004 cx.theme().colors().scrollbar_track_border,
7005 BorderStyle::Solid,
7006 ));
7007
7008 if axis == ScrollbarAxis::Vertical {
7009 let fast_markers =
7010 self.collect_fast_scrollbar_markers(layout, scrollbar_layout, cx);
7011 // Refresh slow scrollbar markers in the background. Below, we
7012 // paint whatever markers have already been computed.
7013 self.refresh_slow_scrollbar_markers(layout, scrollbar_layout, window, cx);
7014
7015 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
7016 for marker in markers.iter().chain(&fast_markers) {
7017 let mut marker = marker.clone();
7018 marker.bounds.origin += hitbox.origin;
7019 window.paint_quad(marker);
7020 }
7021 }
7022
7023 if let Some(thumb_bounds) = scrollbar_layout.thumb_bounds {
7024 let scrollbar_thumb_color = match scrollbar_layout.thumb_state {
7025 ScrollbarThumbState::Dragging => {
7026 cx.theme().colors().scrollbar_thumb_active_background
7027 }
7028 ScrollbarThumbState::Hovered => {
7029 cx.theme().colors().scrollbar_thumb_hover_background
7030 }
7031 ScrollbarThumbState::Idle => {
7032 cx.theme().colors().scrollbar_thumb_background
7033 }
7034 };
7035 window.paint_quad(quad(
7036 thumb_bounds,
7037 Corners::default(),
7038 scrollbar_thumb_color,
7039 scrollbar_edges,
7040 cx.theme().colors().scrollbar_thumb_border,
7041 BorderStyle::Solid,
7042 ));
7043
7044 if any_scrollbar_dragged {
7045 window.set_window_cursor_style(CursorStyle::Arrow);
7046 } else {
7047 window.set_cursor_style(CursorStyle::Arrow, hitbox);
7048 }
7049 }
7050 })
7051 }
7052 }
7053
7054 window.on_mouse_event({
7055 let editor = self.editor.clone();
7056 let scrollbars_layout = scrollbars_layout.clone();
7057
7058 let mut mouse_position = window.mouse_position();
7059 move |event: &MouseMoveEvent, phase, window, cx| {
7060 if phase == DispatchPhase::Capture {
7061 return;
7062 }
7063
7064 editor.update(cx, |editor, cx| {
7065 if let Some((scrollbar_layout, axis)) = event
7066 .pressed_button
7067 .filter(|button| *button == MouseButton::Left)
7068 .and(editor.scroll_manager.dragging_scrollbar_axis())
7069 .and_then(|axis| {
7070 scrollbars_layout
7071 .iter_scrollbars()
7072 .find(|(_, a)| *a == axis)
7073 })
7074 {
7075 let ScrollbarLayout {
7076 hitbox,
7077 text_unit_size,
7078 ..
7079 } = scrollbar_layout;
7080
7081 let old_position = mouse_position.along(axis);
7082 let new_position = event.position.along(axis);
7083 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
7084 .contains(&old_position)
7085 {
7086 let position = editor.scroll_position(cx).apply_along(axis, |p| {
7087 (p + ScrollOffset::from(
7088 (new_position - old_position) / *text_unit_size,
7089 ))
7090 .max(0.)
7091 });
7092 editor.set_scroll_position(position, window, cx);
7093 }
7094
7095 editor.scroll_manager.show_scrollbars(window, cx);
7096 cx.stop_propagation();
7097 } else if let Some((layout, axis)) = scrollbars_layout
7098 .get_hovered_axis(window)
7099 .filter(|_| !event.dragging())
7100 {
7101 if layout.thumb_hovered(&event.position) {
7102 editor
7103 .scroll_manager
7104 .set_hovered_scroll_thumb_axis(axis, cx);
7105 } else {
7106 editor.scroll_manager.reset_scrollbar_state(cx);
7107 }
7108
7109 editor.scroll_manager.show_scrollbars(window, cx);
7110 } else {
7111 editor.scroll_manager.reset_scrollbar_state(cx);
7112 }
7113
7114 mouse_position = event.position;
7115 })
7116 }
7117 });
7118
7119 if any_scrollbar_dragged {
7120 window.on_mouse_event({
7121 let editor = self.editor.clone();
7122 move |_: &MouseUpEvent, phase, window, cx| {
7123 if phase == DispatchPhase::Capture {
7124 return;
7125 }
7126
7127 editor.update(cx, |editor, cx| {
7128 if let Some((_, axis)) = scrollbars_layout.get_hovered_axis(window) {
7129 editor
7130 .scroll_manager
7131 .set_hovered_scroll_thumb_axis(axis, cx);
7132 } else {
7133 editor.scroll_manager.reset_scrollbar_state(cx);
7134 }
7135 cx.stop_propagation();
7136 });
7137 }
7138 });
7139 } else {
7140 window.on_mouse_event({
7141 let editor = self.editor.clone();
7142
7143 move |event: &MouseDownEvent, phase, window, cx| {
7144 if phase == DispatchPhase::Capture {
7145 return;
7146 }
7147 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
7148 else {
7149 return;
7150 };
7151
7152 let ScrollbarLayout {
7153 hitbox,
7154 visible_range,
7155 text_unit_size,
7156 thumb_bounds,
7157 ..
7158 } = scrollbar_layout;
7159
7160 let Some(thumb_bounds) = thumb_bounds else {
7161 return;
7162 };
7163
7164 editor.update(cx, |editor, cx| {
7165 editor
7166 .scroll_manager
7167 .set_dragged_scroll_thumb_axis(axis, cx);
7168
7169 let event_position = event.position.along(axis);
7170
7171 if event_position < thumb_bounds.origin.along(axis)
7172 || thumb_bounds.bottom_right().along(axis) < event_position
7173 {
7174 let center_position = ((event_position - hitbox.origin.along(axis))
7175 / *text_unit_size)
7176 .round() as u32;
7177 let start_position = center_position.saturating_sub(
7178 (visible_range.end - visible_range.start) as u32 / 2,
7179 );
7180
7181 let position = editor
7182 .scroll_position(cx)
7183 .apply_along(axis, |_| start_position as ScrollOffset);
7184
7185 editor.set_scroll_position(position, window, cx);
7186 } else {
7187 editor.scroll_manager.show_scrollbars(window, cx);
7188 }
7189
7190 cx.stop_propagation();
7191 });
7192 }
7193 });
7194 }
7195 }
7196
7197 fn collect_fast_scrollbar_markers(
7198 &self,
7199 layout: &EditorLayout,
7200 scrollbar_layout: &ScrollbarLayout,
7201 cx: &mut App,
7202 ) -> Vec<PaintQuad> {
7203 const LIMIT: usize = 100;
7204 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
7205 return vec![];
7206 }
7207 let cursor_ranges = layout
7208 .cursors
7209 .iter()
7210 .map(|(point, color)| ColoredRange {
7211 start: point.row(),
7212 end: point.row(),
7213 color: *color,
7214 })
7215 .collect_vec();
7216 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
7217 }
7218
7219 fn refresh_slow_scrollbar_markers(
7220 &self,
7221 layout: &EditorLayout,
7222 scrollbar_layout: &ScrollbarLayout,
7223 window: &mut Window,
7224 cx: &mut App,
7225 ) {
7226 self.editor.update(cx, |editor, cx| {
7227 if editor.buffer_kind(cx) != ItemBufferKind::Singleton
7228 || !editor
7229 .scrollbar_marker_state
7230 .should_refresh(scrollbar_layout.hitbox.size)
7231 {
7232 return;
7233 }
7234
7235 let scrollbar_layout = scrollbar_layout.clone();
7236 let background_highlights = editor.background_highlights.clone();
7237 let snapshot = layout.position_map.snapshot.clone();
7238 let theme = cx.theme().clone();
7239 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
7240
7241 editor.scrollbar_marker_state.dirty = false;
7242 editor.scrollbar_marker_state.pending_refresh =
7243 Some(cx.spawn_in(window, async move |editor, cx| {
7244 let scrollbar_size = scrollbar_layout.hitbox.size;
7245 let scrollbar_markers = cx
7246 .background_spawn(async move {
7247 let max_point = snapshot.display_snapshot.buffer_snapshot().max_point();
7248 let mut marker_quads = Vec::new();
7249 if scrollbar_settings.git_diff {
7250 let marker_row_ranges =
7251 snapshot.buffer_snapshot().diff_hunks().map(|hunk| {
7252 let start_display_row =
7253 MultiBufferPoint::new(hunk.row_range.start.0, 0)
7254 .to_display_point(&snapshot.display_snapshot)
7255 .row();
7256 let mut end_display_row =
7257 MultiBufferPoint::new(hunk.row_range.end.0, 0)
7258 .to_display_point(&snapshot.display_snapshot)
7259 .row();
7260 if end_display_row != start_display_row {
7261 end_display_row.0 -= 1;
7262 }
7263 let color = match &hunk.status().kind {
7264 DiffHunkStatusKind::Added => {
7265 theme.colors().version_control_added
7266 }
7267 DiffHunkStatusKind::Modified => {
7268 theme.colors().version_control_modified
7269 }
7270 DiffHunkStatusKind::Deleted => {
7271 theme.colors().version_control_deleted
7272 }
7273 };
7274 ColoredRange {
7275 start: start_display_row,
7276 end: end_display_row,
7277 color,
7278 }
7279 });
7280
7281 marker_quads.extend(
7282 scrollbar_layout
7283 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
7284 );
7285 }
7286
7287 for (background_highlight_id, (_, background_ranges)) in
7288 background_highlights.iter()
7289 {
7290 let is_search_highlights = *background_highlight_id
7291 == HighlightKey::Type(TypeId::of::<BufferSearchHighlights>());
7292 let is_text_highlights = *background_highlight_id
7293 == HighlightKey::Type(TypeId::of::<SelectedTextHighlight>());
7294 let is_symbol_occurrences = *background_highlight_id
7295 == HighlightKey::Type(TypeId::of::<DocumentHighlightRead>())
7296 || *background_highlight_id
7297 == HighlightKey::Type(
7298 TypeId::of::<DocumentHighlightWrite>(),
7299 );
7300 if (is_search_highlights && scrollbar_settings.search_results)
7301 || (is_text_highlights && scrollbar_settings.selected_text)
7302 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
7303 {
7304 let mut color = theme.status().info;
7305 if is_symbol_occurrences {
7306 color.fade_out(0.5);
7307 }
7308 let marker_row_ranges = background_ranges.iter().map(|range| {
7309 let display_start = range
7310 .start
7311 .to_display_point(&snapshot.display_snapshot);
7312 let display_end =
7313 range.end.to_display_point(&snapshot.display_snapshot);
7314 ColoredRange {
7315 start: display_start.row(),
7316 end: display_end.row(),
7317 color,
7318 }
7319 });
7320 marker_quads.extend(
7321 scrollbar_layout
7322 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
7323 );
7324 }
7325 }
7326
7327 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
7328 let diagnostics = snapshot
7329 .buffer_snapshot()
7330 .diagnostics_in_range::<Point>(Point::zero()..max_point)
7331 // Don't show diagnostics the user doesn't care about
7332 .filter(|diagnostic| {
7333 match (
7334 scrollbar_settings.diagnostics,
7335 diagnostic.diagnostic.severity,
7336 ) {
7337 (ScrollbarDiagnostics::All, _) => true,
7338 (
7339 ScrollbarDiagnostics::Error,
7340 lsp::DiagnosticSeverity::ERROR,
7341 ) => true,
7342 (
7343 ScrollbarDiagnostics::Warning,
7344 lsp::DiagnosticSeverity::ERROR
7345 | lsp::DiagnosticSeverity::WARNING,
7346 ) => true,
7347 (
7348 ScrollbarDiagnostics::Information,
7349 lsp::DiagnosticSeverity::ERROR
7350 | lsp::DiagnosticSeverity::WARNING
7351 | lsp::DiagnosticSeverity::INFORMATION,
7352 ) => true,
7353 (_, _) => false,
7354 }
7355 })
7356 // We want to sort by severity, in order to paint the most severe diagnostics last.
7357 .sorted_by_key(|diagnostic| {
7358 std::cmp::Reverse(diagnostic.diagnostic.severity)
7359 });
7360
7361 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
7362 let start_display = diagnostic
7363 .range
7364 .start
7365 .to_display_point(&snapshot.display_snapshot);
7366 let end_display = diagnostic
7367 .range
7368 .end
7369 .to_display_point(&snapshot.display_snapshot);
7370 let color = match diagnostic.diagnostic.severity {
7371 lsp::DiagnosticSeverity::ERROR => theme.status().error,
7372 lsp::DiagnosticSeverity::WARNING => theme.status().warning,
7373 lsp::DiagnosticSeverity::INFORMATION => theme.status().info,
7374 _ => theme.status().hint,
7375 };
7376 ColoredRange {
7377 start: start_display.row(),
7378 end: end_display.row(),
7379 color,
7380 }
7381 });
7382 marker_quads.extend(
7383 scrollbar_layout
7384 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
7385 );
7386 }
7387
7388 Arc::from(marker_quads)
7389 })
7390 .await;
7391
7392 editor.update(cx, |editor, cx| {
7393 editor.scrollbar_marker_state.markers = scrollbar_markers;
7394 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
7395 editor.scrollbar_marker_state.pending_refresh = None;
7396 cx.notify();
7397 })?;
7398
7399 Ok(())
7400 }));
7401 });
7402 }
7403
7404 fn paint_highlighted_range(
7405 &self,
7406 range: Range<DisplayPoint>,
7407 fill: bool,
7408 color: Hsla,
7409 corner_radius: Pixels,
7410 line_end_overshoot: Pixels,
7411 layout: &EditorLayout,
7412 window: &mut Window,
7413 ) {
7414 let start_row = layout.visible_display_row_range.start;
7415 let end_row = layout.visible_display_row_range.end;
7416 if range.start != range.end {
7417 let row_range = if range.end.column() == 0 {
7418 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
7419 } else {
7420 cmp::max(range.start.row(), start_row)
7421 ..cmp::min(range.end.row().next_row(), end_row)
7422 };
7423
7424 let highlighted_range = HighlightedRange {
7425 color,
7426 line_height: layout.position_map.line_height,
7427 corner_radius,
7428 start_y: layout.content_origin.y
7429 + Pixels::from(
7430 (row_range.start.as_f64() - layout.position_map.scroll_position.y)
7431 * ScrollOffset::from(layout.position_map.line_height),
7432 ),
7433 lines: row_range
7434 .iter_rows()
7435 .map(|row| {
7436 let line_layout =
7437 &layout.position_map.line_layouts[row.minus(start_row) as usize];
7438 HighlightedRangeLine {
7439 start_x: if row == range.start.row() {
7440 layout.content_origin.x
7441 + Pixels::from(
7442 ScrollPixelOffset::from(
7443 line_layout.x_for_index(range.start.column() as usize),
7444 ) - layout.position_map.scroll_pixel_position.x,
7445 )
7446 } else {
7447 layout.content_origin.x
7448 - Pixels::from(layout.position_map.scroll_pixel_position.x)
7449 },
7450 end_x: if row == range.end.row() {
7451 layout.content_origin.x
7452 + Pixels::from(
7453 ScrollPixelOffset::from(
7454 line_layout.x_for_index(range.end.column() as usize),
7455 ) - layout.position_map.scroll_pixel_position.x,
7456 )
7457 } else {
7458 Pixels::from(
7459 ScrollPixelOffset::from(
7460 layout.content_origin.x
7461 + line_layout.width
7462 + line_end_overshoot,
7463 ) - layout.position_map.scroll_pixel_position.x,
7464 )
7465 },
7466 }
7467 })
7468 .collect(),
7469 };
7470
7471 highlighted_range.paint(fill, layout.position_map.text_hitbox.bounds, window);
7472 }
7473 }
7474
7475 fn paint_inline_diagnostics(
7476 &mut self,
7477 layout: &mut EditorLayout,
7478 window: &mut Window,
7479 cx: &mut App,
7480 ) {
7481 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
7482 inline_diagnostic.1.paint(window, cx);
7483 }
7484 }
7485
7486 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7487 if let Some(mut blame_layout) = layout.inline_blame_layout.take() {
7488 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7489 blame_layout.element.paint(window, cx);
7490 })
7491 }
7492 }
7493
7494 fn paint_inline_code_actions(
7495 &mut self,
7496 layout: &mut EditorLayout,
7497 window: &mut Window,
7498 cx: &mut App,
7499 ) {
7500 if let Some(mut inline_code_actions) = layout.inline_code_actions.take() {
7501 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7502 inline_code_actions.paint(window, cx);
7503 })
7504 }
7505 }
7506
7507 fn paint_diff_hunk_controls(
7508 &mut self,
7509 layout: &mut EditorLayout,
7510 window: &mut Window,
7511 cx: &mut App,
7512 ) {
7513 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
7514 diff_hunk_control.paint(window, cx);
7515 }
7516 }
7517
7518 fn paint_minimap(&self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7519 if let Some(mut layout) = layout.minimap.take() {
7520 let minimap_hitbox = layout.thumb_layout.hitbox.clone();
7521 let dragging_minimap = self.editor.read(cx).scroll_manager.is_dragging_minimap();
7522
7523 window.paint_layer(layout.thumb_layout.hitbox.bounds, |window| {
7524 window.with_element_namespace("minimap", |window| {
7525 layout.minimap.paint(window, cx);
7526 if let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds {
7527 let minimap_thumb_color = match layout.thumb_layout.thumb_state {
7528 ScrollbarThumbState::Idle => {
7529 cx.theme().colors().minimap_thumb_background
7530 }
7531 ScrollbarThumbState::Hovered => {
7532 cx.theme().colors().minimap_thumb_hover_background
7533 }
7534 ScrollbarThumbState::Dragging => {
7535 cx.theme().colors().minimap_thumb_active_background
7536 }
7537 };
7538 let minimap_thumb_border = match layout.thumb_border_style {
7539 MinimapThumbBorder::Full => Edges::all(ScrollbarLayout::BORDER_WIDTH),
7540 MinimapThumbBorder::LeftOnly => Edges {
7541 left: ScrollbarLayout::BORDER_WIDTH,
7542 ..Default::default()
7543 },
7544 MinimapThumbBorder::LeftOpen => Edges {
7545 right: ScrollbarLayout::BORDER_WIDTH,
7546 top: ScrollbarLayout::BORDER_WIDTH,
7547 bottom: ScrollbarLayout::BORDER_WIDTH,
7548 ..Default::default()
7549 },
7550 MinimapThumbBorder::RightOpen => Edges {
7551 left: ScrollbarLayout::BORDER_WIDTH,
7552 top: ScrollbarLayout::BORDER_WIDTH,
7553 bottom: ScrollbarLayout::BORDER_WIDTH,
7554 ..Default::default()
7555 },
7556 MinimapThumbBorder::None => Default::default(),
7557 };
7558
7559 window.paint_layer(minimap_hitbox.bounds, |window| {
7560 window.paint_quad(quad(
7561 thumb_bounds,
7562 Corners::default(),
7563 minimap_thumb_color,
7564 minimap_thumb_border,
7565 cx.theme().colors().minimap_thumb_border,
7566 BorderStyle::Solid,
7567 ));
7568 });
7569 }
7570 });
7571 });
7572
7573 if dragging_minimap {
7574 window.set_window_cursor_style(CursorStyle::Arrow);
7575 } else {
7576 window.set_cursor_style(CursorStyle::Arrow, &minimap_hitbox);
7577 }
7578
7579 let minimap_axis = ScrollbarAxis::Vertical;
7580 let pixels_per_line = Pixels::from(
7581 ScrollPixelOffset::from(minimap_hitbox.size.height) / layout.max_scroll_top,
7582 )
7583 .min(layout.minimap_line_height);
7584
7585 let mut mouse_position = window.mouse_position();
7586
7587 window.on_mouse_event({
7588 let editor = self.editor.clone();
7589
7590 let minimap_hitbox = minimap_hitbox.clone();
7591
7592 move |event: &MouseMoveEvent, phase, window, cx| {
7593 if phase == DispatchPhase::Capture {
7594 return;
7595 }
7596
7597 editor.update(cx, |editor, cx| {
7598 if event.pressed_button == Some(MouseButton::Left)
7599 && editor.scroll_manager.is_dragging_minimap()
7600 {
7601 let old_position = mouse_position.along(minimap_axis);
7602 let new_position = event.position.along(minimap_axis);
7603 if (minimap_hitbox.origin.along(minimap_axis)
7604 ..minimap_hitbox.bottom_right().along(minimap_axis))
7605 .contains(&old_position)
7606 {
7607 let position =
7608 editor.scroll_position(cx).apply_along(minimap_axis, |p| {
7609 (p + ScrollPixelOffset::from(
7610 (new_position - old_position) / pixels_per_line,
7611 ))
7612 .max(0.)
7613 });
7614
7615 editor.set_scroll_position(position, window, cx);
7616 }
7617 cx.stop_propagation();
7618 } else if minimap_hitbox.is_hovered(window) {
7619 editor.scroll_manager.set_is_hovering_minimap_thumb(
7620 !event.dragging()
7621 && layout
7622 .thumb_layout
7623 .thumb_bounds
7624 .is_some_and(|bounds| bounds.contains(&event.position)),
7625 cx,
7626 );
7627
7628 // Stop hover events from propagating to the
7629 // underlying editor if the minimap hitbox is hovered
7630 if !event.dragging() {
7631 cx.stop_propagation();
7632 }
7633 } else {
7634 editor.scroll_manager.hide_minimap_thumb(cx);
7635 }
7636 mouse_position = event.position;
7637 });
7638 }
7639 });
7640
7641 if dragging_minimap {
7642 window.on_mouse_event({
7643 let editor = self.editor.clone();
7644 move |event: &MouseUpEvent, phase, window, cx| {
7645 if phase == DispatchPhase::Capture {
7646 return;
7647 }
7648
7649 editor.update(cx, |editor, cx| {
7650 if minimap_hitbox.is_hovered(window) {
7651 editor.scroll_manager.set_is_hovering_minimap_thumb(
7652 layout
7653 .thumb_layout
7654 .thumb_bounds
7655 .is_some_and(|bounds| bounds.contains(&event.position)),
7656 cx,
7657 );
7658 } else {
7659 editor.scroll_manager.hide_minimap_thumb(cx);
7660 }
7661 cx.stop_propagation();
7662 });
7663 }
7664 });
7665 } else {
7666 window.on_mouse_event({
7667 let editor = self.editor.clone();
7668
7669 move |event: &MouseDownEvent, phase, window, cx| {
7670 if phase == DispatchPhase::Capture || !minimap_hitbox.is_hovered(window) {
7671 return;
7672 }
7673
7674 let event_position = event.position;
7675
7676 let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds else {
7677 return;
7678 };
7679
7680 editor.update(cx, |editor, cx| {
7681 if !thumb_bounds.contains(&event_position) {
7682 let click_position =
7683 event_position.relative_to(&minimap_hitbox.origin).y;
7684
7685 let top_position = (click_position
7686 - thumb_bounds.size.along(minimap_axis) / 2.0)
7687 .max(Pixels::ZERO);
7688
7689 let scroll_offset = (layout.minimap_scroll_top
7690 + ScrollPixelOffset::from(
7691 top_position / layout.minimap_line_height,
7692 ))
7693 .min(layout.max_scroll_top);
7694
7695 let scroll_position = editor
7696 .scroll_position(cx)
7697 .apply_along(minimap_axis, |_| scroll_offset);
7698 editor.set_scroll_position(scroll_position, window, cx);
7699 }
7700
7701 editor.scroll_manager.set_is_dragging_minimap(cx);
7702 cx.stop_propagation();
7703 });
7704 }
7705 });
7706 }
7707 }
7708 }
7709
7710 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7711 for mut block in layout.blocks.drain(..) {
7712 if block.overlaps_gutter {
7713 block.element.paint(window, cx);
7714 } else {
7715 let mut bounds = layout.hitbox.bounds;
7716 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
7717 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7718 block.element.paint(window, cx);
7719 })
7720 }
7721 }
7722 }
7723
7724 fn paint_edit_prediction_popover(
7725 &mut self,
7726 layout: &mut EditorLayout,
7727 window: &mut Window,
7728 cx: &mut App,
7729 ) {
7730 if let Some(edit_prediction_popover) = layout.edit_prediction_popover.as_mut() {
7731 edit_prediction_popover.paint(window, cx);
7732 }
7733 }
7734
7735 fn paint_mouse_context_menu(
7736 &mut self,
7737 layout: &mut EditorLayout,
7738 window: &mut Window,
7739 cx: &mut App,
7740 ) {
7741 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
7742 mouse_context_menu.paint(window, cx);
7743 }
7744 }
7745
7746 fn paint_scroll_wheel_listener(
7747 &mut self,
7748 layout: &EditorLayout,
7749 window: &mut Window,
7750 cx: &mut App,
7751 ) {
7752 window.on_mouse_event({
7753 let position_map = layout.position_map.clone();
7754 let editor = self.editor.clone();
7755 let hitbox = layout.hitbox.clone();
7756 let mut delta = ScrollDelta::default();
7757
7758 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
7759 // accidentally turn off their scrolling.
7760 let base_scroll_sensitivity =
7761 EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
7762
7763 // Use a minimum fast_scroll_sensitivity for same reason above
7764 let fast_scroll_sensitivity = EditorSettings::get_global(cx)
7765 .fast_scroll_sensitivity
7766 .max(0.01);
7767
7768 move |event: &ScrollWheelEvent, phase, window, cx| {
7769 let scroll_sensitivity = {
7770 if event.modifiers.alt {
7771 fast_scroll_sensitivity
7772 } else {
7773 base_scroll_sensitivity
7774 }
7775 };
7776
7777 if phase == DispatchPhase::Bubble && hitbox.should_handle_scroll(window) {
7778 delta = delta.coalesce(event.delta);
7779 editor.update(cx, |editor, cx| {
7780 let position_map: &PositionMap = &position_map;
7781
7782 let line_height = position_map.line_height;
7783 let max_glyph_advance = position_map.em_advance;
7784 let (delta, axis) = match delta {
7785 gpui::ScrollDelta::Pixels(mut pixels) => {
7786 //Trackpad
7787 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
7788 (pixels, axis)
7789 }
7790
7791 gpui::ScrollDelta::Lines(lines) => {
7792 //Not trackpad
7793 let pixels =
7794 point(lines.x * max_glyph_advance, lines.y * line_height);
7795 (pixels, None)
7796 }
7797 };
7798
7799 let current_scroll_position = position_map.snapshot.scroll_position();
7800 let x = (current_scroll_position.x
7801 * ScrollPixelOffset::from(max_glyph_advance)
7802 - ScrollPixelOffset::from(delta.x * scroll_sensitivity))
7803 / ScrollPixelOffset::from(max_glyph_advance);
7804 let y = (current_scroll_position.y * ScrollPixelOffset::from(line_height)
7805 - ScrollPixelOffset::from(delta.y * scroll_sensitivity))
7806 / ScrollPixelOffset::from(line_height);
7807 let mut scroll_position =
7808 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
7809 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
7810 if forbid_vertical_scroll {
7811 scroll_position.y = current_scroll_position.y;
7812 }
7813
7814 if scroll_position != current_scroll_position {
7815 editor.scroll(scroll_position, axis, window, cx);
7816 cx.stop_propagation();
7817 } else if y < 0. {
7818 // Due to clamping, we may fail to detect cases of overscroll to the top;
7819 // We want the scroll manager to get an update in such cases and detect the change of direction
7820 // on the next frame.
7821 cx.notify();
7822 }
7823 });
7824 }
7825 }
7826 });
7827 }
7828
7829 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
7830 if layout.mode.is_minimap() {
7831 return;
7832 }
7833
7834 self.paint_scroll_wheel_listener(layout, window, cx);
7835
7836 window.on_mouse_event({
7837 let position_map = layout.position_map.clone();
7838 let editor = self.editor.clone();
7839 let line_numbers = layout.line_numbers.clone();
7840
7841 move |event: &MouseDownEvent, phase, window, cx| {
7842 if phase == DispatchPhase::Bubble {
7843 match event.button {
7844 MouseButton::Left => editor.update(cx, |editor, cx| {
7845 let pending_mouse_down = editor
7846 .pending_mouse_down
7847 .get_or_insert_with(Default::default)
7848 .clone();
7849
7850 *pending_mouse_down.borrow_mut() = Some(event.clone());
7851
7852 Self::mouse_left_down(
7853 editor,
7854 event,
7855 &position_map,
7856 line_numbers.as_ref(),
7857 window,
7858 cx,
7859 );
7860 }),
7861 MouseButton::Right => editor.update(cx, |editor, cx| {
7862 Self::mouse_right_down(editor, event, &position_map, window, cx);
7863 }),
7864 MouseButton::Middle => editor.update(cx, |editor, cx| {
7865 Self::mouse_middle_down(editor, event, &position_map, window, cx);
7866 }),
7867 _ => {}
7868 };
7869 }
7870 }
7871 });
7872
7873 window.on_mouse_event({
7874 let editor = self.editor.clone();
7875 let position_map = layout.position_map.clone();
7876
7877 move |event: &MouseUpEvent, phase, window, cx| {
7878 if phase == DispatchPhase::Bubble {
7879 editor.update(cx, |editor, cx| {
7880 Self::mouse_up(editor, event, &position_map, window, cx)
7881 });
7882 }
7883 }
7884 });
7885
7886 window.on_mouse_event({
7887 let editor = self.editor.clone();
7888 let position_map = layout.position_map.clone();
7889 let mut captured_mouse_down = None;
7890
7891 move |event: &MouseUpEvent, phase, window, cx| match phase {
7892 // Clear the pending mouse down during the capture phase,
7893 // so that it happens even if another event handler stops
7894 // propagation.
7895 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
7896 let pending_mouse_down = editor
7897 .pending_mouse_down
7898 .get_or_insert_with(Default::default)
7899 .clone();
7900
7901 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
7902 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
7903 captured_mouse_down = pending_mouse_down.take();
7904 window.refresh();
7905 }
7906 }),
7907 // Fire click handlers during the bubble phase.
7908 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
7909 if let Some(mouse_down) = captured_mouse_down.take() {
7910 let event = ClickEvent::Mouse(MouseClickEvent {
7911 down: mouse_down,
7912 up: event.clone(),
7913 });
7914 Self::click(editor, &event, &position_map, window, cx);
7915 }
7916 }),
7917 }
7918 });
7919
7920 window.on_mouse_event({
7921 let position_map = layout.position_map.clone();
7922 let editor = self.editor.clone();
7923
7924 move |event: &MousePressureEvent, phase, window, cx| {
7925 if phase == DispatchPhase::Bubble {
7926 editor.update(cx, |editor, cx| {
7927 Self::pressure_click(editor, &event, &position_map, window, cx);
7928 })
7929 }
7930 }
7931 });
7932
7933 window.on_mouse_event({
7934 let position_map = layout.position_map.clone();
7935 let editor = self.editor.clone();
7936
7937 move |event: &MouseMoveEvent, phase, window, cx| {
7938 if phase == DispatchPhase::Bubble {
7939 editor.update(cx, |editor, cx| {
7940 if editor.hover_state.focused(window, cx) {
7941 return;
7942 }
7943 if event.pressed_button == Some(MouseButton::Left)
7944 || event.pressed_button == Some(MouseButton::Middle)
7945 {
7946 Self::mouse_dragged(editor, event, &position_map, window, cx)
7947 }
7948
7949 Self::mouse_moved(editor, event, &position_map, window, cx)
7950 });
7951 }
7952 }
7953 });
7954 }
7955
7956 fn shape_line_number(
7957 &self,
7958 text: SharedString,
7959 color: Hsla,
7960 window: &mut Window,
7961 ) -> ShapedLine {
7962 let run = TextRun {
7963 len: text.len(),
7964 font: self.style.text.font(),
7965 color,
7966 ..Default::default()
7967 };
7968 window.text_system().shape_line(
7969 text,
7970 self.style.text.font_size.to_pixels(window.rem_size()),
7971 &[run],
7972 None,
7973 )
7974 }
7975
7976 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
7977 let unstaged = status.has_secondary_hunk();
7978 let unstaged_hollow = matches!(
7979 ProjectSettings::get_global(cx).git.hunk_style,
7980 GitHunkStyleSetting::UnstagedHollow
7981 );
7982
7983 unstaged == unstaged_hollow
7984 }
7985
7986 #[cfg(debug_assertions)]
7987 fn layout_debug_ranges(
7988 selections: &mut Vec<(PlayerColor, Vec<SelectionLayout>)>,
7989 anchor_range: Range<Anchor>,
7990 display_snapshot: &DisplaySnapshot,
7991 cx: &App,
7992 ) {
7993 let theme = cx.theme();
7994 text::debug::GlobalDebugRanges::with_locked(|debug_ranges| {
7995 if debug_ranges.ranges.is_empty() {
7996 return;
7997 }
7998 let buffer_snapshot = &display_snapshot.buffer_snapshot();
7999 for (buffer, buffer_range, excerpt_id) in
8000 buffer_snapshot.range_to_buffer_ranges(anchor_range)
8001 {
8002 let buffer_range =
8003 buffer.anchor_after(buffer_range.start)..buffer.anchor_before(buffer_range.end);
8004 selections.extend(debug_ranges.ranges.iter().flat_map(|debug_range| {
8005 let player_color = theme
8006 .players()
8007 .color_for_participant(debug_range.occurrence_index as u32 + 1);
8008 debug_range.ranges.iter().filter_map(move |range| {
8009 if range.start.buffer_id != Some(buffer.remote_id()) {
8010 return None;
8011 }
8012 let clipped_start = range.start.max(&buffer_range.start, buffer);
8013 let clipped_end = range.end.min(&buffer_range.end, buffer);
8014 let range = buffer_snapshot
8015 .anchor_range_in_excerpt(excerpt_id, *clipped_start..*clipped_end)?;
8016 let start = range.start.to_display_point(display_snapshot);
8017 let end = range.end.to_display_point(display_snapshot);
8018 let selection_layout = SelectionLayout {
8019 head: start,
8020 range: start..end,
8021 cursor_shape: CursorShape::Bar,
8022 is_newest: false,
8023 is_local: false,
8024 active_rows: start.row()..end.row(),
8025 user_name: Some(SharedString::new(debug_range.value.clone())),
8026 };
8027 Some((player_color, vec![selection_layout]))
8028 })
8029 }));
8030 }
8031 });
8032 }
8033}
8034
8035fn file_status_label_color(file_status: Option<FileStatus>) -> Color {
8036 file_status.map_or(Color::Default, |status| {
8037 if status.is_conflicted() {
8038 Color::Conflict
8039 } else if status.is_modified() {
8040 Color::Modified
8041 } else if status.is_deleted() {
8042 Color::Disabled
8043 } else if status.is_created() {
8044 Color::Created
8045 } else {
8046 Color::Default
8047 }
8048 })
8049}
8050
8051fn header_jump_data(
8052 editor_snapshot: &EditorSnapshot,
8053 block_row_start: DisplayRow,
8054 height: u32,
8055 first_excerpt: &ExcerptInfo,
8056 latest_selection_anchors: &HashMap<BufferId, Anchor>,
8057) -> JumpData {
8058 let jump_target = if let Some(anchor) = latest_selection_anchors.get(&first_excerpt.buffer_id)
8059 && let Some(range) = editor_snapshot.context_range_for_excerpt(anchor.excerpt_id)
8060 && let Some(buffer) = editor_snapshot
8061 .buffer_snapshot()
8062 .buffer_for_excerpt(anchor.excerpt_id)
8063 {
8064 JumpTargetInExcerptInput {
8065 id: anchor.excerpt_id,
8066 buffer,
8067 excerpt_start_anchor: range.start,
8068 jump_anchor: anchor.text_anchor,
8069 }
8070 } else {
8071 JumpTargetInExcerptInput {
8072 id: first_excerpt.id,
8073 buffer: &first_excerpt.buffer,
8074 excerpt_start_anchor: first_excerpt.range.context.start,
8075 jump_anchor: first_excerpt.range.primary.start,
8076 }
8077 };
8078 header_jump_data_inner(editor_snapshot, block_row_start, height, &jump_target)
8079}
8080
8081struct JumpTargetInExcerptInput<'a> {
8082 id: ExcerptId,
8083 buffer: &'a language::BufferSnapshot,
8084 excerpt_start_anchor: text::Anchor,
8085 jump_anchor: text::Anchor,
8086}
8087
8088fn header_jump_data_inner(
8089 snapshot: &EditorSnapshot,
8090 block_row_start: DisplayRow,
8091 height: u32,
8092 for_excerpt: &JumpTargetInExcerptInput,
8093) -> JumpData {
8094 let buffer = &for_excerpt.buffer;
8095 let jump_position = language::ToPoint::to_point(&for_excerpt.jump_anchor, buffer);
8096 let excerpt_start = for_excerpt.excerpt_start_anchor;
8097 let rows_from_excerpt_start = if for_excerpt.jump_anchor == excerpt_start {
8098 0
8099 } else {
8100 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
8101 jump_position.row.saturating_sub(excerpt_start_point.row)
8102 };
8103
8104 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
8105 .saturating_sub(
8106 snapshot
8107 .scroll_anchor
8108 .scroll_position(&snapshot.display_snapshot)
8109 .y as u32,
8110 );
8111
8112 JumpData::MultiBufferPoint {
8113 excerpt_id: for_excerpt.id,
8114 anchor: for_excerpt.jump_anchor,
8115 position: jump_position,
8116 line_offset_from_top,
8117 }
8118}
8119
8120pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
8121
8122impl AcceptEditPredictionBinding {
8123 pub fn keystroke(&self) -> Option<&KeybindingKeystroke> {
8124 if let Some(binding) = self.0.as_ref() {
8125 match &binding.keystrokes() {
8126 [keystroke, ..] => Some(keystroke),
8127 _ => None,
8128 }
8129 } else {
8130 None
8131 }
8132 }
8133}
8134
8135fn prepaint_gutter_button(
8136 button: IconButton,
8137 row: DisplayRow,
8138 line_height: Pixels,
8139 gutter_dimensions: &GutterDimensions,
8140 scroll_position: gpui::Point<ScrollOffset>,
8141 gutter_hitbox: &Hitbox,
8142 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
8143 window: &mut Window,
8144 cx: &mut App,
8145) -> AnyElement {
8146 let mut button = button.into_any_element();
8147
8148 let available_space = size(
8149 AvailableSpace::MinContent,
8150 AvailableSpace::Definite(line_height),
8151 );
8152 let indicator_size = button.layout_as_root(available_space, window, cx);
8153
8154 let blame_width = gutter_dimensions.git_blame_entries_width;
8155 let gutter_width = display_hunks
8156 .binary_search_by(|(hunk, _)| match hunk {
8157 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
8158 DisplayDiffHunk::Unfolded {
8159 display_row_range, ..
8160 } => {
8161 if display_row_range.end <= row {
8162 Ordering::Less
8163 } else if display_row_range.start > row {
8164 Ordering::Greater
8165 } else {
8166 Ordering::Equal
8167 }
8168 }
8169 })
8170 .ok()
8171 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
8172 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
8173
8174 let mut x = left_offset;
8175 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
8176 - indicator_size.width
8177 - left_offset;
8178 x += available_width / 2.;
8179
8180 let mut y =
8181 Pixels::from((row.as_f64() - scroll_position.y) * ScrollPixelOffset::from(line_height));
8182 y += (line_height - indicator_size.height) / 2.;
8183
8184 button.prepaint_as_root(
8185 gutter_hitbox.origin + point(x, y),
8186 available_space,
8187 window,
8188 cx,
8189 );
8190 button
8191}
8192
8193fn render_inline_blame_entry(
8194 blame_entry: BlameEntry,
8195 style: &EditorStyle,
8196 cx: &mut App,
8197) -> Option<AnyElement> {
8198 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
8199 renderer.render_inline_blame_entry(&style.text, blame_entry, cx)
8200}
8201
8202fn render_blame_entry_popover(
8203 blame_entry: BlameEntry,
8204 scroll_handle: ScrollHandle,
8205 commit_message: Option<ParsedCommitMessage>,
8206 markdown: Entity<Markdown>,
8207 workspace: WeakEntity<Workspace>,
8208 blame: &Entity<GitBlame>,
8209 buffer: BufferId,
8210 window: &mut Window,
8211 cx: &mut App,
8212) -> Option<AnyElement> {
8213 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
8214 let blame = blame.read(cx);
8215 let repository = blame.repository(cx, buffer)?;
8216 renderer.render_blame_entry_popover(
8217 blame_entry,
8218 scroll_handle,
8219 commit_message,
8220 markdown,
8221 repository,
8222 workspace,
8223 window,
8224 cx,
8225 )
8226}
8227
8228fn render_blame_entry(
8229 ix: usize,
8230 blame: &Entity<GitBlame>,
8231 blame_entry: BlameEntry,
8232 style: &EditorStyle,
8233 last_used_color: &mut Option<(Hsla, Oid)>,
8234 editor: Entity<Editor>,
8235 workspace: Entity<Workspace>,
8236 buffer: BufferId,
8237 renderer: &dyn BlameRenderer,
8238 window: &mut Window,
8239 cx: &mut App,
8240) -> Option<AnyElement> {
8241 let index: u32 = blame_entry.sha.into();
8242 let mut sha_color = cx.theme().players().color_for_participant(index).cursor;
8243
8244 // If the last color we used is the same as the one we get for this line, but
8245 // the commit SHAs are different, then we try again to get a different color.
8246 if let Some((color, sha)) = *last_used_color
8247 && sha != blame_entry.sha
8248 && color == sha_color
8249 {
8250 sha_color = cx.theme().players().color_for_participant(index + 1).cursor;
8251 }
8252 last_used_color.replace((sha_color, blame_entry.sha));
8253
8254 let blame = blame.read(cx);
8255 let details = blame.details_for_entry(buffer, &blame_entry);
8256 let repository = blame.repository(cx, buffer)?;
8257 renderer.render_blame_entry(
8258 &style.text,
8259 blame_entry,
8260 details,
8261 repository,
8262 workspace.downgrade(),
8263 editor,
8264 ix,
8265 sha_color,
8266 window,
8267 cx,
8268 )
8269}
8270
8271#[derive(Debug)]
8272pub(crate) struct LineWithInvisibles {
8273 fragments: SmallVec<[LineFragment; 1]>,
8274 invisibles: Vec<Invisible>,
8275 len: usize,
8276 pub(crate) width: Pixels,
8277 font_size: Pixels,
8278}
8279
8280enum LineFragment {
8281 Text(ShapedLine),
8282 Element {
8283 id: ChunkRendererId,
8284 element: Option<AnyElement>,
8285 size: Size<Pixels>,
8286 len: usize,
8287 },
8288}
8289
8290impl fmt::Debug for LineFragment {
8291 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
8292 match self {
8293 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
8294 LineFragment::Element { size, len, .. } => f
8295 .debug_struct("Element")
8296 .field("size", size)
8297 .field("len", len)
8298 .finish(),
8299 }
8300 }
8301}
8302
8303impl LineWithInvisibles {
8304 fn from_chunks<'a>(
8305 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
8306 editor_style: &EditorStyle,
8307 max_line_len: usize,
8308 max_line_count: usize,
8309 editor_mode: &EditorMode,
8310 text_width: Pixels,
8311 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8312 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
8313 window: &mut Window,
8314 cx: &mut App,
8315 ) -> Vec<Self> {
8316 let text_style = &editor_style.text;
8317 let mut layouts = Vec::with_capacity(max_line_count);
8318 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
8319 let mut line = String::new();
8320 let mut invisibles = Vec::new();
8321 let mut width = Pixels::ZERO;
8322 let mut len = 0;
8323 let mut styles = Vec::new();
8324 let mut non_whitespace_added = false;
8325 let mut row = 0;
8326 let mut line_exceeded_max_len = false;
8327 let font_size = text_style.font_size.to_pixels(window.rem_size());
8328 let min_contrast = EditorSettings::get_global(cx).minimum_contrast_for_highlights;
8329
8330 let ellipsis = SharedString::from("β―");
8331
8332 for highlighted_chunk in chunks.chain([HighlightedChunk {
8333 text: "\n",
8334 style: None,
8335 is_tab: false,
8336 is_inlay: false,
8337 replacement: None,
8338 }]) {
8339 if let Some(replacement) = highlighted_chunk.replacement {
8340 if !line.is_empty() {
8341 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8342 let text_runs: &[TextRun] = if segments.is_empty() {
8343 &styles
8344 } else {
8345 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8346 };
8347 let shaped_line = window.text_system().shape_line(
8348 line.clone().into(),
8349 font_size,
8350 text_runs,
8351 None,
8352 );
8353 width += shaped_line.width;
8354 len += shaped_line.len;
8355 fragments.push(LineFragment::Text(shaped_line));
8356 line.clear();
8357 styles.clear();
8358 }
8359
8360 match replacement {
8361 ChunkReplacement::Renderer(renderer) => {
8362 let available_width = if renderer.constrain_width {
8363 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
8364 ellipsis.clone()
8365 } else {
8366 SharedString::from(Arc::from(highlighted_chunk.text))
8367 };
8368 let shaped_line = window.text_system().shape_line(
8369 chunk,
8370 font_size,
8371 &[text_style.to_run(highlighted_chunk.text.len())],
8372 None,
8373 );
8374 AvailableSpace::Definite(shaped_line.width)
8375 } else {
8376 AvailableSpace::MinContent
8377 };
8378
8379 let mut element = (renderer.render)(&mut ChunkRendererContext {
8380 context: cx,
8381 window,
8382 max_width: text_width,
8383 });
8384 let line_height = text_style.line_height_in_pixels(window.rem_size());
8385 let size = element.layout_as_root(
8386 size(available_width, AvailableSpace::Definite(line_height)),
8387 window,
8388 cx,
8389 );
8390
8391 width += size.width;
8392 len += highlighted_chunk.text.len();
8393 fragments.push(LineFragment::Element {
8394 id: renderer.id,
8395 element: Some(element),
8396 size,
8397 len: highlighted_chunk.text.len(),
8398 });
8399 }
8400 ChunkReplacement::Str(x) => {
8401 let text_style = if let Some(style) = highlighted_chunk.style {
8402 Cow::Owned(text_style.clone().highlight(style))
8403 } else {
8404 Cow::Borrowed(text_style)
8405 };
8406
8407 let run = TextRun {
8408 len: x.len(),
8409 font: text_style.font(),
8410 color: text_style.color,
8411 background_color: text_style.background_color,
8412 underline: text_style.underline,
8413 strikethrough: text_style.strikethrough,
8414 };
8415 let line_layout = window
8416 .text_system()
8417 .shape_line(x, font_size, &[run], None)
8418 .with_len(highlighted_chunk.text.len());
8419
8420 width += line_layout.width;
8421 len += highlighted_chunk.text.len();
8422 fragments.push(LineFragment::Text(line_layout))
8423 }
8424 }
8425 } else {
8426 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
8427 if ix > 0 {
8428 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8429 let text_runs = if segments.is_empty() {
8430 &styles
8431 } else {
8432 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8433 };
8434 let shaped_line = window.text_system().shape_line(
8435 line.clone().into(),
8436 font_size,
8437 text_runs,
8438 None,
8439 );
8440 width += shaped_line.width;
8441 len += shaped_line.len;
8442 fragments.push(LineFragment::Text(shaped_line));
8443 layouts.push(Self {
8444 width: mem::take(&mut width),
8445 len: mem::take(&mut len),
8446 fragments: mem::take(&mut fragments),
8447 invisibles: std::mem::take(&mut invisibles),
8448 font_size,
8449 });
8450
8451 line.clear();
8452 styles.clear();
8453 row += 1;
8454 line_exceeded_max_len = false;
8455 non_whitespace_added = false;
8456 if row == max_line_count {
8457 return layouts;
8458 }
8459 }
8460
8461 if !line_chunk.is_empty() && !line_exceeded_max_len {
8462 let text_style = if let Some(style) = highlighted_chunk.style {
8463 Cow::Owned(text_style.clone().highlight(style))
8464 } else {
8465 Cow::Borrowed(text_style)
8466 };
8467
8468 if line.len() + line_chunk.len() > max_line_len {
8469 let mut chunk_len = max_line_len - line.len();
8470 while !line_chunk.is_char_boundary(chunk_len) {
8471 chunk_len -= 1;
8472 }
8473 line_chunk = &line_chunk[..chunk_len];
8474 line_exceeded_max_len = true;
8475 }
8476
8477 styles.push(TextRun {
8478 len: line_chunk.len(),
8479 font: text_style.font(),
8480 color: text_style.color,
8481 background_color: text_style.background_color,
8482 underline: text_style.underline,
8483 strikethrough: text_style.strikethrough,
8484 });
8485
8486 if editor_mode.is_full() && !highlighted_chunk.is_inlay {
8487 // Line wrap pads its contents with fake whitespaces,
8488 // avoid printing them
8489 let is_soft_wrapped = is_row_soft_wrapped(row);
8490 if highlighted_chunk.is_tab {
8491 if non_whitespace_added || !is_soft_wrapped {
8492 invisibles.push(Invisible::Tab {
8493 line_start_offset: line.len(),
8494 line_end_offset: line.len() + line_chunk.len(),
8495 });
8496 }
8497 } else {
8498 invisibles.extend(line_chunk.char_indices().filter_map(
8499 |(index, c)| {
8500 let is_whitespace = c.is_whitespace();
8501 non_whitespace_added |= !is_whitespace;
8502 if is_whitespace
8503 && (non_whitespace_added || !is_soft_wrapped)
8504 {
8505 Some(Invisible::Whitespace {
8506 line_offset: line.len() + index,
8507 })
8508 } else {
8509 None
8510 }
8511 },
8512 ))
8513 }
8514 }
8515
8516 line.push_str(line_chunk);
8517 }
8518 }
8519 }
8520 }
8521
8522 layouts
8523 }
8524
8525 /// Takes text runs and non-overlapping left-to-right background ranges with color.
8526 /// Returns new text runs with adjusted contrast as per background ranges.
8527 fn split_runs_by_bg_segments(
8528 text_runs: &[TextRun],
8529 bg_segments: &[(Range<DisplayPoint>, Hsla)],
8530 min_contrast: f32,
8531 start_col_offset: usize,
8532 ) -> Vec<TextRun> {
8533 let mut output_runs: Vec<TextRun> = Vec::with_capacity(text_runs.len());
8534 let mut line_col = start_col_offset;
8535 let mut segment_ix = 0usize;
8536
8537 for text_run in text_runs.iter() {
8538 let run_start_col = line_col;
8539 let run_end_col = run_start_col + text_run.len;
8540 while segment_ix < bg_segments.len()
8541 && (bg_segments[segment_ix].0.end.column() as usize) <= run_start_col
8542 {
8543 segment_ix += 1;
8544 }
8545 let mut cursor_col = run_start_col;
8546 let mut local_segment_ix = segment_ix;
8547 while local_segment_ix < bg_segments.len() {
8548 let (range, segment_color) = &bg_segments[local_segment_ix];
8549 let segment_start_col = range.start.column() as usize;
8550 let segment_end_col = range.end.column() as usize;
8551 if segment_start_col >= run_end_col {
8552 break;
8553 }
8554 if segment_start_col > cursor_col {
8555 let span_len = segment_start_col - cursor_col;
8556 output_runs.push(TextRun {
8557 len: span_len,
8558 font: text_run.font.clone(),
8559 color: text_run.color,
8560 background_color: text_run.background_color,
8561 underline: text_run.underline,
8562 strikethrough: text_run.strikethrough,
8563 });
8564 cursor_col = segment_start_col;
8565 }
8566 let segment_slice_end_col = segment_end_col.min(run_end_col);
8567 if segment_slice_end_col > cursor_col {
8568 let new_text_color =
8569 ensure_minimum_contrast(text_run.color, *segment_color, min_contrast);
8570 output_runs.push(TextRun {
8571 len: segment_slice_end_col - cursor_col,
8572 font: text_run.font.clone(),
8573 color: new_text_color,
8574 background_color: text_run.background_color,
8575 underline: text_run.underline,
8576 strikethrough: text_run.strikethrough,
8577 });
8578 cursor_col = segment_slice_end_col;
8579 }
8580 if segment_end_col >= run_end_col {
8581 break;
8582 }
8583 local_segment_ix += 1;
8584 }
8585 if cursor_col < run_end_col {
8586 output_runs.push(TextRun {
8587 len: run_end_col - cursor_col,
8588 font: text_run.font.clone(),
8589 color: text_run.color,
8590 background_color: text_run.background_color,
8591 underline: text_run.underline,
8592 strikethrough: text_run.strikethrough,
8593 });
8594 }
8595 line_col = run_end_col;
8596 segment_ix = local_segment_ix;
8597 }
8598 output_runs
8599 }
8600
8601 fn prepaint(
8602 &mut self,
8603 line_height: Pixels,
8604 scroll_position: gpui::Point<ScrollOffset>,
8605 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
8606 row: DisplayRow,
8607 content_origin: gpui::Point<Pixels>,
8608 line_elements: &mut SmallVec<[AnyElement; 1]>,
8609 window: &mut Window,
8610 cx: &mut App,
8611 ) {
8612 let line_y = f32::from(line_height) * Pixels::from(row.as_f64() - scroll_position.y);
8613 self.prepaint_with_custom_offset(
8614 line_height,
8615 scroll_pixel_position,
8616 content_origin,
8617 line_y,
8618 line_elements,
8619 window,
8620 cx,
8621 );
8622 }
8623
8624 fn prepaint_with_custom_offset(
8625 &mut self,
8626 line_height: Pixels,
8627 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
8628 content_origin: gpui::Point<Pixels>,
8629 line_y: Pixels,
8630 line_elements: &mut SmallVec<[AnyElement; 1]>,
8631 window: &mut Window,
8632 cx: &mut App,
8633 ) {
8634 let mut fragment_origin =
8635 content_origin + gpui::point(Pixels::from(-scroll_pixel_position.x), line_y);
8636 for fragment in &mut self.fragments {
8637 match fragment {
8638 LineFragment::Text(line) => {
8639 fragment_origin.x += line.width;
8640 }
8641 LineFragment::Element { element, size, .. } => {
8642 let mut element = element
8643 .take()
8644 .expect("you can't prepaint LineWithInvisibles twice");
8645
8646 // Center the element vertically within the line.
8647 let mut element_origin = fragment_origin;
8648 element_origin.y += (line_height - size.height) / 2.;
8649 element.prepaint_at(element_origin, window, cx);
8650 line_elements.push(element);
8651
8652 fragment_origin.x += size.width;
8653 }
8654 }
8655 }
8656 }
8657
8658 fn draw(
8659 &self,
8660 layout: &EditorLayout,
8661 row: DisplayRow,
8662 content_origin: gpui::Point<Pixels>,
8663 whitespace_setting: ShowWhitespaceSetting,
8664 selection_ranges: &[Range<DisplayPoint>],
8665 window: &mut Window,
8666 cx: &mut App,
8667 ) {
8668 self.draw_with_custom_offset(
8669 layout,
8670 row,
8671 content_origin,
8672 layout.position_map.line_height
8673 * (row.as_f64() - layout.position_map.scroll_position.y) as f32,
8674 whitespace_setting,
8675 selection_ranges,
8676 window,
8677 cx,
8678 );
8679 }
8680
8681 fn draw_with_custom_offset(
8682 &self,
8683 layout: &EditorLayout,
8684 row: DisplayRow,
8685 content_origin: gpui::Point<Pixels>,
8686 line_y: Pixels,
8687 whitespace_setting: ShowWhitespaceSetting,
8688 selection_ranges: &[Range<DisplayPoint>],
8689 window: &mut Window,
8690 cx: &mut App,
8691 ) {
8692 let line_height = layout.position_map.line_height;
8693 let mut fragment_origin = content_origin
8694 + gpui::point(
8695 Pixels::from(-layout.position_map.scroll_pixel_position.x),
8696 line_y,
8697 );
8698
8699 for fragment in &self.fragments {
8700 match fragment {
8701 LineFragment::Text(line) => {
8702 line.paint(fragment_origin, line_height, window, cx)
8703 .log_err();
8704 fragment_origin.x += line.width;
8705 }
8706 LineFragment::Element { size, .. } => {
8707 fragment_origin.x += size.width;
8708 }
8709 }
8710 }
8711
8712 self.draw_invisibles(
8713 selection_ranges,
8714 layout,
8715 content_origin,
8716 line_y,
8717 row,
8718 line_height,
8719 whitespace_setting,
8720 window,
8721 cx,
8722 );
8723 }
8724
8725 fn draw_background(
8726 &self,
8727 layout: &EditorLayout,
8728 row: DisplayRow,
8729 content_origin: gpui::Point<Pixels>,
8730 window: &mut Window,
8731 cx: &mut App,
8732 ) {
8733 let line_height = layout.position_map.line_height;
8734 let line_y = line_height * (row.as_f64() - layout.position_map.scroll_position.y) as f32;
8735
8736 let mut fragment_origin = content_origin
8737 + gpui::point(
8738 Pixels::from(-layout.position_map.scroll_pixel_position.x),
8739 line_y,
8740 );
8741
8742 for fragment in &self.fragments {
8743 match fragment {
8744 LineFragment::Text(line) => {
8745 line.paint_background(fragment_origin, line_height, window, cx)
8746 .log_err();
8747 fragment_origin.x += line.width;
8748 }
8749 LineFragment::Element { size, .. } => {
8750 fragment_origin.x += size.width;
8751 }
8752 }
8753 }
8754 }
8755
8756 fn draw_invisibles(
8757 &self,
8758 selection_ranges: &[Range<DisplayPoint>],
8759 layout: &EditorLayout,
8760 content_origin: gpui::Point<Pixels>,
8761 line_y: Pixels,
8762 row: DisplayRow,
8763 line_height: Pixels,
8764 whitespace_setting: ShowWhitespaceSetting,
8765 window: &mut Window,
8766 cx: &mut App,
8767 ) {
8768 let extract_whitespace_info = |invisible: &Invisible| {
8769 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
8770 Invisible::Tab {
8771 line_start_offset,
8772 line_end_offset,
8773 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
8774 Invisible::Whitespace { line_offset } => {
8775 (*line_offset, line_offset + 1, &layout.space_invisible)
8776 }
8777 };
8778
8779 let x_offset: ScrollPixelOffset = self.x_for_index(token_offset).into();
8780 let invisible_offset: ScrollPixelOffset =
8781 ((layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0)
8782 .into();
8783 let origin = content_origin
8784 + gpui::point(
8785 Pixels::from(
8786 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
8787 ),
8788 line_y,
8789 );
8790
8791 (
8792 [token_offset, token_end_offset],
8793 Box::new(move |window: &mut Window, cx: &mut App| {
8794 invisible_symbol
8795 .paint(origin, line_height, window, cx)
8796 .log_err();
8797 }),
8798 )
8799 };
8800
8801 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
8802 match whitespace_setting {
8803 ShowWhitespaceSetting::None => (),
8804 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
8805 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
8806 let invisible_point = DisplayPoint::new(row, start as u32);
8807 if !selection_ranges
8808 .iter()
8809 .any(|region| region.start <= invisible_point && invisible_point < region.end)
8810 {
8811 return;
8812 }
8813
8814 paint(window, cx);
8815 }),
8816
8817 ShowWhitespaceSetting::Trailing => {
8818 let mut previous_start = self.len;
8819 for ([start, end], paint) in invisible_iter.rev() {
8820 if previous_start != end {
8821 break;
8822 }
8823 previous_start = start;
8824 paint(window, cx);
8825 }
8826 }
8827
8828 // For a whitespace to be on a boundary, any of the following conditions need to be met:
8829 // - It is a tab
8830 // - It is adjacent to an edge (start or end)
8831 // - It is adjacent to a whitespace (left or right)
8832 ShowWhitespaceSetting::Boundary => {
8833 // 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
8834 // the above cases.
8835 // Note: We zip in the original `invisibles` to check for tab equality
8836 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
8837 for (([start, end], paint), invisible) in
8838 invisible_iter.zip_eq(self.invisibles.iter())
8839 {
8840 let should_render = match (&last_seen, invisible) {
8841 (_, Invisible::Tab { .. }) => true,
8842 (Some((_, last_end, _)), _) => *last_end == start,
8843 _ => false,
8844 };
8845
8846 if should_render || start == 0 || end == self.len {
8847 paint(window, cx);
8848
8849 // Since we are scanning from the left, we will skip over the first available whitespace that is part
8850 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
8851 if let Some((should_render_last, last_end, paint_last)) = last_seen {
8852 // Note that we need to make sure that the last one is actually adjacent
8853 if !should_render_last && last_end == start {
8854 paint_last(window, cx);
8855 }
8856 }
8857 }
8858
8859 // Manually render anything within a selection
8860 let invisible_point = DisplayPoint::new(row, start as u32);
8861 if selection_ranges.iter().any(|region| {
8862 region.start <= invisible_point && invisible_point < region.end
8863 }) {
8864 paint(window, cx);
8865 }
8866
8867 last_seen = Some((should_render, end, paint));
8868 }
8869 }
8870 }
8871 }
8872
8873 pub fn x_for_index(&self, index: usize) -> Pixels {
8874 let mut fragment_start_x = Pixels::ZERO;
8875 let mut fragment_start_index = 0;
8876
8877 for fragment in &self.fragments {
8878 match fragment {
8879 LineFragment::Text(shaped_line) => {
8880 let fragment_end_index = fragment_start_index + shaped_line.len;
8881 if index < fragment_end_index {
8882 return fragment_start_x
8883 + shaped_line.x_for_index(index - fragment_start_index);
8884 }
8885 fragment_start_x += shaped_line.width;
8886 fragment_start_index = fragment_end_index;
8887 }
8888 LineFragment::Element { len, size, .. } => {
8889 let fragment_end_index = fragment_start_index + len;
8890 if index < fragment_end_index {
8891 return fragment_start_x;
8892 }
8893 fragment_start_x += size.width;
8894 fragment_start_index = fragment_end_index;
8895 }
8896 }
8897 }
8898
8899 fragment_start_x
8900 }
8901
8902 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
8903 let mut fragment_start_x = Pixels::ZERO;
8904 let mut fragment_start_index = 0;
8905
8906 for fragment in &self.fragments {
8907 match fragment {
8908 LineFragment::Text(shaped_line) => {
8909 let fragment_end_x = fragment_start_x + shaped_line.width;
8910 if x < fragment_end_x {
8911 return Some(
8912 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
8913 );
8914 }
8915 fragment_start_x = fragment_end_x;
8916 fragment_start_index += shaped_line.len;
8917 }
8918 LineFragment::Element { len, size, .. } => {
8919 let fragment_end_x = fragment_start_x + size.width;
8920 if x < fragment_end_x {
8921 return Some(fragment_start_index);
8922 }
8923 fragment_start_index += len;
8924 fragment_start_x = fragment_end_x;
8925 }
8926 }
8927 }
8928
8929 None
8930 }
8931
8932 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
8933 let mut fragment_start_index = 0;
8934
8935 for fragment in &self.fragments {
8936 match fragment {
8937 LineFragment::Text(shaped_line) => {
8938 let fragment_end_index = fragment_start_index + shaped_line.len;
8939 if index < fragment_end_index {
8940 return shaped_line.font_id_for_index(index - fragment_start_index);
8941 }
8942 fragment_start_index = fragment_end_index;
8943 }
8944 LineFragment::Element { len, .. } => {
8945 let fragment_end_index = fragment_start_index + len;
8946 if index < fragment_end_index {
8947 return None;
8948 }
8949 fragment_start_index = fragment_end_index;
8950 }
8951 }
8952 }
8953
8954 None
8955 }
8956}
8957
8958#[derive(Debug, Clone, Copy, PartialEq, Eq)]
8959enum Invisible {
8960 /// A tab character
8961 ///
8962 /// A tab character is internally represented by spaces (configured by the user's tab width)
8963 /// aligned to the nearest column, so it's necessary to store the start and end offset for
8964 /// adjacency checks.
8965 Tab {
8966 line_start_offset: usize,
8967 line_end_offset: usize,
8968 },
8969 Whitespace {
8970 line_offset: usize,
8971 },
8972}
8973
8974impl EditorElement {
8975 /// Returns the rem size to use when rendering the [`EditorElement`].
8976 ///
8977 /// This allows UI elements to scale based on the `buffer_font_size`.
8978 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
8979 match self.editor.read(cx).mode {
8980 EditorMode::Full {
8981 scale_ui_elements_with_buffer_font_size: true,
8982 ..
8983 }
8984 | EditorMode::Minimap { .. } => {
8985 let buffer_font_size = self.style.text.font_size;
8986 match buffer_font_size {
8987 AbsoluteLength::Pixels(pixels) => {
8988 let rem_size_scale = {
8989 // Our default UI font size is 14px on a 16px base scale.
8990 // This means the default UI font size is 0.875rems.
8991 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
8992
8993 // We then determine the delta between a single rem and the default font
8994 // size scale.
8995 let default_font_size_delta = 1. - default_font_size_scale;
8996
8997 // Finally, we add this delta to 1rem to get the scale factor that
8998 // should be used to scale up the UI.
8999 1. + default_font_size_delta
9000 };
9001
9002 Some(pixels * rem_size_scale)
9003 }
9004 AbsoluteLength::Rems(rems) => {
9005 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
9006 }
9007 }
9008 }
9009 // We currently use single-line and auto-height editors in UI contexts,
9010 // so we don't want to scale everything with the buffer font size, as it
9011 // ends up looking off.
9012 _ => None,
9013 }
9014 }
9015
9016 fn editor_with_selections(&self, cx: &App) -> Option<Entity<Editor>> {
9017 if let EditorMode::Minimap { parent } = self.editor.read(cx).mode() {
9018 parent.upgrade()
9019 } else {
9020 Some(self.editor.clone())
9021 }
9022 }
9023}
9024
9025#[derive(Default)]
9026pub struct EditorRequestLayoutState {
9027 // We use prepaint depth to limit the number of times prepaint is
9028 // called recursively. We need this so that we can update stale
9029 // data for e.g. block heights in block map.
9030 prepaint_depth: Rc<Cell<usize>>,
9031}
9032
9033impl EditorRequestLayoutState {
9034 // In ideal conditions we only need one more subsequent prepaint call for resize to take effect.
9035 // i.e. MAX_PREPAINT_DEPTH = 2, but since moving blocks inline (place_near), more lines from
9036 // below get exposed, and we end up querying blocks for those lines too in subsequent renders.
9037 // Setting MAX_PREPAINT_DEPTH = 3, passes all tests. Just to be on the safe side we set it to 5, so
9038 // that subsequent shrinking does not lead to incorrect block placing.
9039 const MAX_PREPAINT_DEPTH: usize = 5;
9040
9041 fn increment_prepaint_depth(&self) -> EditorPrepaintGuard {
9042 let depth = self.prepaint_depth.get();
9043 self.prepaint_depth.set(depth + 1);
9044 EditorPrepaintGuard {
9045 prepaint_depth: self.prepaint_depth.clone(),
9046 }
9047 }
9048
9049 fn can_prepaint(&self) -> bool {
9050 self.prepaint_depth.get() < Self::MAX_PREPAINT_DEPTH
9051 }
9052}
9053
9054struct EditorPrepaintGuard {
9055 prepaint_depth: Rc<Cell<usize>>,
9056}
9057
9058impl Drop for EditorPrepaintGuard {
9059 fn drop(&mut self) {
9060 let depth = self.prepaint_depth.get();
9061 self.prepaint_depth.set(depth.saturating_sub(1));
9062 }
9063}
9064
9065impl Element for EditorElement {
9066 type RequestLayoutState = EditorRequestLayoutState;
9067 type PrepaintState = EditorLayout;
9068
9069 fn id(&self) -> Option<ElementId> {
9070 None
9071 }
9072
9073 fn source_location(&self) -> Option<&'static core::panic::Location<'static>> {
9074 None
9075 }
9076
9077 fn request_layout(
9078 &mut self,
9079 _: Option<&GlobalElementId>,
9080 _inspector_id: Option<&gpui::InspectorElementId>,
9081 window: &mut Window,
9082 cx: &mut App,
9083 ) -> (gpui::LayoutId, Self::RequestLayoutState) {
9084 let rem_size = self.rem_size(cx);
9085 window.with_rem_size(rem_size, |window| {
9086 self.editor.update(cx, |editor, cx| {
9087 editor.set_style(self.style.clone(), window, cx);
9088
9089 let layout_id = match editor.mode {
9090 EditorMode::SingleLine => {
9091 let rem_size = window.rem_size();
9092 let height = self.style.text.line_height_in_pixels(rem_size);
9093 let mut style = Style::default();
9094 style.size.height = height.into();
9095 style.size.width = relative(1.).into();
9096 window.request_layout(style, None, cx)
9097 }
9098 EditorMode::AutoHeight {
9099 min_lines,
9100 max_lines,
9101 } => {
9102 let editor_handle = cx.entity();
9103 window.request_measured_layout(
9104 Style::default(),
9105 move |known_dimensions, available_space, window, cx| {
9106 editor_handle
9107 .update(cx, |editor, cx| {
9108 compute_auto_height_layout(
9109 editor,
9110 min_lines,
9111 max_lines,
9112 known_dimensions,
9113 available_space.width,
9114 window,
9115 cx,
9116 )
9117 })
9118 .unwrap_or_default()
9119 },
9120 )
9121 }
9122 EditorMode::Minimap { .. } => {
9123 let mut style = Style::default();
9124 style.size.width = relative(1.).into();
9125 style.size.height = relative(1.).into();
9126 window.request_layout(style, None, cx)
9127 }
9128 EditorMode::Full {
9129 sizing_behavior, ..
9130 } => {
9131 let mut style = Style::default();
9132 style.size.width = relative(1.).into();
9133 if sizing_behavior == SizingBehavior::SizeByContent {
9134 let snapshot = editor.snapshot(window, cx);
9135 let line_height =
9136 self.style.text.line_height_in_pixels(window.rem_size());
9137 let scroll_height =
9138 (snapshot.max_point().row().next_row().0 as f32) * line_height;
9139 style.size.height = scroll_height.into();
9140 } else {
9141 style.size.height = relative(1.).into();
9142 }
9143 window.request_layout(style, None, cx)
9144 }
9145 };
9146
9147 (layout_id, EditorRequestLayoutState::default())
9148 })
9149 })
9150 }
9151
9152 fn prepaint(
9153 &mut self,
9154 _: Option<&GlobalElementId>,
9155 _inspector_id: Option<&gpui::InspectorElementId>,
9156 bounds: Bounds<Pixels>,
9157 request_layout: &mut Self::RequestLayoutState,
9158 window: &mut Window,
9159 cx: &mut App,
9160 ) -> Self::PrepaintState {
9161 let _prepaint_depth_guard = request_layout.increment_prepaint_depth();
9162 let text_style = TextStyleRefinement {
9163 font_size: Some(self.style.text.font_size),
9164 line_height: Some(self.style.text.line_height),
9165 ..Default::default()
9166 };
9167
9168 let is_minimap = self.editor.read(cx).mode.is_minimap();
9169 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
9170
9171 if !is_minimap {
9172 let focus_handle = self.editor.focus_handle(cx);
9173 window.set_view_id(self.editor.entity_id());
9174 window.set_focus_handle(&focus_handle, cx);
9175 }
9176
9177 let rem_size = self.rem_size(cx);
9178 window.with_rem_size(rem_size, |window| {
9179 window.with_text_style(Some(text_style), |window| {
9180 window.with_content_mask(Some(ContentMask { bounds }), |window| {
9181 let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| {
9182 (editor.snapshot(window, cx), editor.read_only(cx))
9183 });
9184 let style = &self.style;
9185
9186 let rem_size = window.rem_size();
9187 let font_id = window.text_system().resolve_font(&style.text.font());
9188 let font_size = style.text.font_size.to_pixels(rem_size);
9189 let line_height = style.text.line_height_in_pixels(rem_size);
9190 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
9191 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
9192 let glyph_grid_cell = size(em_advance, line_height);
9193
9194 let gutter_dimensions = snapshot
9195 .gutter_dimensions(
9196 font_id,
9197 font_size,
9198 style,
9199 window,
9200 cx,
9201 );
9202 let text_width = bounds.size.width - gutter_dimensions.width;
9203
9204 let settings = EditorSettings::get_global(cx);
9205 let scrollbars_shown = settings.scrollbar.show != ShowScrollbar::Never;
9206 let vertical_scrollbar_width = (scrollbars_shown
9207 && settings.scrollbar.axes.vertical
9208 && self.editor.read(cx).show_scrollbars.vertical)
9209 .then_some(style.scrollbar_width)
9210 .unwrap_or_default();
9211 let minimap_width = self
9212 .get_minimap_width(
9213 &settings.minimap,
9214 scrollbars_shown,
9215 text_width,
9216 em_width,
9217 font_size,
9218 rem_size,
9219 cx,
9220 )
9221 .unwrap_or_default();
9222
9223 let right_margin = minimap_width + vertical_scrollbar_width;
9224
9225 let editor_width =
9226 text_width - gutter_dimensions.margin - 2 * em_width - right_margin;
9227 let editor_margins = EditorMargins {
9228 gutter: gutter_dimensions,
9229 right: right_margin,
9230 };
9231
9232 snapshot = self.editor.update(cx, |editor, cx| {
9233 editor.last_bounds = Some(bounds);
9234 editor.gutter_dimensions = gutter_dimensions;
9235 editor.set_visible_line_count(
9236 (bounds.size.height / line_height) as f64,
9237 window,
9238 cx,
9239 );
9240 editor.set_visible_column_count(f64::from(editor_width / em_advance));
9241
9242 if matches!(
9243 editor.mode,
9244 EditorMode::AutoHeight { .. } | EditorMode::Minimap { .. }
9245 ) {
9246 snapshot
9247 } else {
9248 let wrap_width_for = |column: u32| (column as f32 * em_advance).ceil();
9249 let wrap_width = match editor.soft_wrap_mode(cx) {
9250 SoftWrap::GitDiff => None,
9251 SoftWrap::None => Some(wrap_width_for(MAX_LINE_LEN as u32 / 2)),
9252 SoftWrap::EditorWidth => Some(editor_width),
9253 SoftWrap::Column(column) => Some(wrap_width_for(column)),
9254 SoftWrap::Bounded(column) => {
9255 Some(editor_width.min(wrap_width_for(column)))
9256 }
9257 };
9258
9259 if editor.set_wrap_width(wrap_width, cx) {
9260 editor.snapshot(window, cx)
9261 } else {
9262 snapshot
9263 }
9264 }
9265 });
9266
9267 let hitbox = window.insert_hitbox(bounds, HitboxBehavior::Normal);
9268 let gutter_hitbox = window.insert_hitbox(
9269 gutter_bounds(bounds, gutter_dimensions),
9270 HitboxBehavior::Normal,
9271 );
9272 let text_hitbox = window.insert_hitbox(
9273 Bounds {
9274 origin: gutter_hitbox.top_right(),
9275 size: size(text_width, bounds.size.height),
9276 },
9277 HitboxBehavior::Normal,
9278 );
9279
9280 // Offset the content_bounds from the text_bounds by the gutter margin (which
9281 // is roughly half a character wide) to make hit testing work more like how we want.
9282 let content_offset = point(editor_margins.gutter.margin, Pixels::ZERO);
9283 let content_origin = text_hitbox.origin + content_offset;
9284
9285 let height_in_lines = f64::from(bounds.size.height / line_height);
9286 let max_row = snapshot.max_point().row().as_f64();
9287
9288 // The max scroll position for the top of the window
9289 let max_scroll_top = if matches!(
9290 snapshot.mode,
9291 EditorMode::SingleLine
9292 | EditorMode::AutoHeight { .. }
9293 | EditorMode::Full {
9294 sizing_behavior: SizingBehavior::ExcludeOverscrollMargin
9295 | SizingBehavior::SizeByContent,
9296 ..
9297 }
9298 ) {
9299 (max_row - height_in_lines + 1.).max(0.)
9300 } else {
9301 let settings = EditorSettings::get_global(cx);
9302 match settings.scroll_beyond_last_line {
9303 ScrollBeyondLastLine::OnePage => max_row,
9304 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
9305 ScrollBeyondLastLine::VerticalScrollMargin => {
9306 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
9307 .max(0.)
9308 }
9309 }
9310 };
9311
9312 let (
9313 autoscroll_request,
9314 autoscroll_containing_element,
9315 needs_horizontal_autoscroll,
9316 ) = self.editor.update(cx, |editor, cx| {
9317 let autoscroll_request = editor.scroll_manager.take_autoscroll_request();
9318
9319 let autoscroll_containing_element =
9320 autoscroll_request.is_some() || editor.has_pending_selection();
9321
9322 let (needs_horizontal_autoscroll, was_scrolled) = editor
9323 .autoscroll_vertically(
9324 bounds,
9325 line_height,
9326 max_scroll_top,
9327 autoscroll_request,
9328 window,
9329 cx,
9330 );
9331 if was_scrolled.0 {
9332 snapshot = editor.snapshot(window, cx);
9333 }
9334 (
9335 autoscroll_request,
9336 autoscroll_containing_element,
9337 needs_horizontal_autoscroll,
9338 )
9339 });
9340
9341 let mut scroll_position = snapshot.scroll_position();
9342 // The scroll position is a fractional point, the whole number of which represents
9343 // the top of the window in terms of display rows.
9344 let start_row = DisplayRow(scroll_position.y as u32);
9345 let max_row = snapshot.max_point().row();
9346 let end_row = cmp::min(
9347 (scroll_position.y + height_in_lines).ceil() as u32,
9348 max_row.next_row().0,
9349 );
9350 let end_row = DisplayRow(end_row);
9351
9352 let row_infos = snapshot // note we only get the visual range
9353 .row_infos(start_row)
9354 .take((start_row..end_row).len())
9355 .collect::<Vec<RowInfo>>();
9356 let is_row_soft_wrapped = |row: usize| {
9357 row_infos
9358 .get(row)
9359 .is_none_or(|info| info.buffer_row.is_none())
9360 };
9361
9362 let start_anchor = if start_row == Default::default() {
9363 Anchor::min()
9364 } else {
9365 snapshot.buffer_snapshot().anchor_before(
9366 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
9367 )
9368 };
9369 let end_anchor = if end_row > max_row {
9370 Anchor::max()
9371 } else {
9372 snapshot.buffer_snapshot().anchor_before(
9373 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
9374 )
9375 };
9376
9377 let mut highlighted_rows = self
9378 .editor
9379 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
9380
9381 let is_light = cx.theme().appearance().is_light();
9382
9383 let mut highlighted_ranges = self
9384 .editor_with_selections(cx)
9385 .map(|editor| {
9386 editor.read(cx).background_highlights_in_range(
9387 start_anchor..end_anchor,
9388 &snapshot.display_snapshot,
9389 cx.theme(),
9390 )
9391 })
9392 .unwrap_or_default();
9393
9394 for (ix, row_info) in row_infos.iter().enumerate() {
9395 let Some(diff_status) = row_info.diff_status else {
9396 continue;
9397 };
9398
9399 let background_color = match diff_status.kind {
9400 DiffHunkStatusKind::Added =>
9401 cx.theme().colors().version_control_added,
9402 DiffHunkStatusKind::Deleted =>
9403 cx.theme().colors().version_control_deleted,
9404 DiffHunkStatusKind::Modified => {
9405 debug_panic!("modified diff status for row info");
9406 continue;
9407 }
9408 };
9409
9410 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
9411
9412 let hollow_highlight = LineHighlight {
9413 background: (background_color.opacity(if is_light {
9414 0.08
9415 } else {
9416 0.06
9417 }))
9418 .into(),
9419 border: Some(if is_light {
9420 background_color.opacity(0.48)
9421 } else {
9422 background_color.opacity(0.36)
9423 }),
9424 include_gutter: true,
9425 type_id: None,
9426 };
9427
9428 let filled_highlight = LineHighlight {
9429 background: solid_background(background_color.opacity(hunk_opacity)),
9430 border: None,
9431 include_gutter: true,
9432 type_id: None,
9433 };
9434
9435 let background = if Self::diff_hunk_hollow(diff_status, cx) {
9436 hollow_highlight
9437 } else {
9438 filled_highlight
9439 };
9440
9441 let base_display_point =
9442 DisplayPoint::new(start_row + DisplayRow(ix as u32), 0);
9443
9444 highlighted_rows
9445 .entry(base_display_point.row())
9446 .or_insert(background);
9447 }
9448
9449 let highlighted_gutter_ranges =
9450 self.editor.read(cx).gutter_highlights_in_range(
9451 start_anchor..end_anchor,
9452 &snapshot.display_snapshot,
9453 cx,
9454 );
9455
9456 let document_colors = self
9457 .editor
9458 .read(cx)
9459 .colors
9460 .as_ref()
9461 .map(|colors| colors.editor_display_highlights(&snapshot));
9462 let redacted_ranges = self.editor.read(cx).redacted_ranges(
9463 start_anchor..end_anchor,
9464 &snapshot.display_snapshot,
9465 cx,
9466 );
9467
9468 let (local_selections, selected_buffer_ids, latest_selection_anchors): (
9469 Vec<Selection<Point>>,
9470 Vec<BufferId>,
9471 HashMap<BufferId, Anchor>,
9472 ) = self
9473 .editor_with_selections(cx)
9474 .map(|editor| {
9475 editor.update(cx, |editor, cx| {
9476 let all_selections =
9477 editor.selections.all::<Point>(&snapshot.display_snapshot);
9478 let all_anchor_selections =
9479 editor.selections.all_anchors(&snapshot.display_snapshot);
9480 let selected_buffer_ids =
9481 if editor.buffer_kind(cx) == ItemBufferKind::Singleton {
9482 Vec::new()
9483 } else {
9484 let mut selected_buffer_ids =
9485 Vec::with_capacity(all_selections.len());
9486
9487 for selection in all_selections {
9488 for buffer_id in snapshot
9489 .buffer_snapshot()
9490 .buffer_ids_for_range(selection.range())
9491 {
9492 if selected_buffer_ids.last() != Some(&buffer_id) {
9493 selected_buffer_ids.push(buffer_id);
9494 }
9495 }
9496 }
9497
9498 selected_buffer_ids
9499 };
9500
9501 let mut selections = editor.selections.disjoint_in_range(
9502 start_anchor..end_anchor,
9503 &snapshot.display_snapshot,
9504 );
9505 selections
9506 .extend(editor.selections.pending(&snapshot.display_snapshot));
9507
9508 let mut anchors_by_buffer: HashMap<BufferId, (usize, Anchor)> =
9509 HashMap::default();
9510 for selection in all_anchor_selections.iter() {
9511 let head = selection.head();
9512 if let Some(buffer_id) = head.text_anchor.buffer_id {
9513 anchors_by_buffer
9514 .entry(buffer_id)
9515 .and_modify(|(latest_id, latest_anchor)| {
9516 if selection.id > *latest_id {
9517 *latest_id = selection.id;
9518 *latest_anchor = head;
9519 }
9520 })
9521 .or_insert((selection.id, head));
9522 }
9523 }
9524 let latest_selection_anchors = anchors_by_buffer
9525 .into_iter()
9526 .map(|(buffer_id, (_, anchor))| (buffer_id, anchor))
9527 .collect();
9528
9529 (selections, selected_buffer_ids, latest_selection_anchors)
9530 })
9531 })
9532 .unwrap_or_else(|| (Vec::new(), Vec::new(), HashMap::default()));
9533
9534 let (selections, mut active_rows, newest_selection_head) = self
9535 .layout_selections(
9536 start_anchor,
9537 end_anchor,
9538 &local_selections,
9539 &snapshot,
9540 start_row,
9541 end_row,
9542 window,
9543 cx,
9544 );
9545 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
9546 editor.active_breakpoints(start_row..end_row, window, cx)
9547 });
9548 for (display_row, (_, bp, state)) in &breakpoint_rows {
9549 if bp.is_enabled() && state.is_none_or(|s| s.verified) {
9550 active_rows.entry(*display_row).or_default().breakpoint = true;
9551 }
9552 }
9553
9554 let line_numbers = self.layout_line_numbers(
9555 Some(&gutter_hitbox),
9556 gutter_dimensions,
9557 line_height,
9558 scroll_position,
9559 start_row..end_row,
9560 &row_infos,
9561 &active_rows,
9562 newest_selection_head,
9563 &snapshot,
9564 window,
9565 cx,
9566 );
9567
9568 // We add the gutter breakpoint indicator to breakpoint_rows after painting
9569 // line numbers so we don't paint a line number debug accent color if a user
9570 // has their mouse over that line when a breakpoint isn't there
9571 self.editor.update(cx, |editor, _| {
9572 if let Some(phantom_breakpoint) = &mut editor
9573 .gutter_breakpoint_indicator
9574 .0
9575 .filter(|phantom_breakpoint| phantom_breakpoint.is_active)
9576 {
9577 // Is there a non-phantom breakpoint on this line?
9578 phantom_breakpoint.collides_with_existing_breakpoint = true;
9579 breakpoint_rows
9580 .entry(phantom_breakpoint.display_row)
9581 .or_insert_with(|| {
9582 let position = snapshot.display_point_to_anchor(
9583 DisplayPoint::new(phantom_breakpoint.display_row, 0),
9584 Bias::Right,
9585 );
9586 let breakpoint = Breakpoint::new_standard();
9587 phantom_breakpoint.collides_with_existing_breakpoint = false;
9588 (position, breakpoint, None)
9589 });
9590 }
9591 });
9592
9593 let mut expand_toggles =
9594 window.with_element_namespace("expand_toggles", |window| {
9595 self.layout_expand_toggles(
9596 &gutter_hitbox,
9597 gutter_dimensions,
9598 em_width,
9599 line_height,
9600 scroll_position,
9601 &row_infos,
9602 window,
9603 cx,
9604 )
9605 });
9606
9607 let mut crease_toggles =
9608 window.with_element_namespace("crease_toggles", |window| {
9609 self.layout_crease_toggles(
9610 start_row..end_row,
9611 &row_infos,
9612 &active_rows,
9613 &snapshot,
9614 window,
9615 cx,
9616 )
9617 });
9618 let crease_trailers =
9619 window.with_element_namespace("crease_trailers", |window| {
9620 self.layout_crease_trailers(
9621 row_infos.iter().cloned(),
9622 &snapshot,
9623 window,
9624 cx,
9625 )
9626 });
9627
9628 let display_hunks = self.layout_gutter_diff_hunks(
9629 line_height,
9630 &gutter_hitbox,
9631 start_row..end_row,
9632 &snapshot,
9633 window,
9634 cx,
9635 );
9636
9637 Self::layout_word_diff_highlights(
9638 &display_hunks,
9639 &row_infos,
9640 start_row,
9641 &snapshot,
9642 &mut highlighted_ranges,
9643 cx,
9644 );
9645
9646 let merged_highlighted_ranges =
9647 if let Some((_, colors)) = document_colors.as_ref() {
9648 &highlighted_ranges
9649 .clone()
9650 .into_iter()
9651 .chain(colors.clone())
9652 .collect()
9653 } else {
9654 &highlighted_ranges
9655 };
9656 let bg_segments_per_row = Self::bg_segments_per_row(
9657 start_row..end_row,
9658 &selections,
9659 &merged_highlighted_ranges,
9660 self.style.background,
9661 );
9662
9663 let mut line_layouts = Self::layout_lines(
9664 start_row..end_row,
9665 &snapshot,
9666 &self.style,
9667 editor_width,
9668 is_row_soft_wrapped,
9669 &bg_segments_per_row,
9670 window,
9671 cx,
9672 );
9673 let new_renderer_widths = (!is_minimap).then(|| {
9674 line_layouts
9675 .iter()
9676 .flat_map(|layout| &layout.fragments)
9677 .filter_map(|fragment| {
9678 if let LineFragment::Element { id, size, .. } = fragment {
9679 Some((*id, size.width))
9680 } else {
9681 None
9682 }
9683 })
9684 });
9685 if new_renderer_widths.is_some_and(|new_renderer_widths| {
9686 self.editor.update(cx, |editor, cx| {
9687 editor.update_renderer_widths(new_renderer_widths, cx)
9688 })
9689 }) {
9690 // If the fold widths have changed, we need to prepaint
9691 // the element again to account for any changes in
9692 // wrapping.
9693 if request_layout.can_prepaint() {
9694 return self.prepaint(
9695 None,
9696 _inspector_id,
9697 bounds,
9698 request_layout,
9699 window,
9700 cx,
9701 );
9702 } else {
9703 debug_panic!(
9704 "skipping recursive prepaint at max depth. renderer widths may be stale."
9705 );
9706 }
9707 }
9708
9709 let longest_line_blame_width = self
9710 .editor
9711 .update(cx, |editor, cx| {
9712 if !editor.show_git_blame_inline {
9713 return None;
9714 }
9715 let blame = editor.blame.as_ref()?;
9716 let (_, blame_entry) = blame
9717 .update(cx, |blame, cx| {
9718 let row_infos =
9719 snapshot.row_infos(snapshot.longest_row()).next()?;
9720 blame.blame_for_rows(&[row_infos], cx).next()
9721 })
9722 .flatten()?;
9723 let mut element = render_inline_blame_entry(blame_entry, style, cx)?;
9724 let inline_blame_padding =
9725 ProjectSettings::get_global(cx).git.inline_blame.padding as f32
9726 * em_advance;
9727 Some(
9728 element
9729 .layout_as_root(AvailableSpace::min_size(), window, cx)
9730 .width
9731 + inline_blame_padding,
9732 )
9733 })
9734 .unwrap_or(Pixels::ZERO);
9735
9736 let longest_line_width = layout_line(
9737 snapshot.longest_row(),
9738 &snapshot,
9739 style,
9740 editor_width,
9741 is_row_soft_wrapped,
9742 window,
9743 cx,
9744 )
9745 .width;
9746
9747 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
9748 text_hitbox.bounds,
9749 glyph_grid_cell,
9750 size(
9751 longest_line_width,
9752 Pixels::from(max_row.as_f64() * f64::from(line_height)),
9753 ),
9754 longest_line_blame_width,
9755 EditorSettings::get_global(cx),
9756 );
9757
9758 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
9759
9760 let sticky_header_excerpt = if snapshot.buffer_snapshot().show_headers() {
9761 snapshot.sticky_header_excerpt(scroll_position.y)
9762 } else {
9763 None
9764 };
9765 let sticky_header_excerpt_id =
9766 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
9767
9768 let blocks = (!is_minimap)
9769 .then(|| {
9770 window.with_element_namespace("blocks", |window| {
9771 self.render_blocks(
9772 start_row..end_row,
9773 &snapshot,
9774 &hitbox,
9775 &text_hitbox,
9776 editor_width,
9777 &mut scroll_width,
9778 &editor_margins,
9779 em_width,
9780 gutter_dimensions.full_width(),
9781 line_height,
9782 &mut line_layouts,
9783 &local_selections,
9784 &selected_buffer_ids,
9785 &latest_selection_anchors,
9786 is_row_soft_wrapped,
9787 sticky_header_excerpt_id,
9788 window,
9789 cx,
9790 )
9791 })
9792 })
9793 .unwrap_or_default();
9794 let RenderBlocksOutput {
9795 mut blocks,
9796 row_block_types,
9797 resized_blocks,
9798 } = blocks;
9799 if let Some(resized_blocks) = resized_blocks {
9800 self.editor.update(cx, |editor, cx| {
9801 editor.resize_blocks(
9802 resized_blocks,
9803 autoscroll_request.map(|(autoscroll, _)| autoscroll),
9804 cx,
9805 )
9806 });
9807 if request_layout.can_prepaint() {
9808 return self.prepaint(
9809 None,
9810 _inspector_id,
9811 bounds,
9812 request_layout,
9813 window,
9814 cx,
9815 );
9816 } else {
9817 debug_panic!(
9818 "skipping recursive prepaint at max depth. block layout may be stale."
9819 );
9820 }
9821 }
9822
9823 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
9824 window.with_element_namespace("blocks", |window| {
9825 self.layout_sticky_buffer_header(
9826 sticky_header_excerpt,
9827 scroll_position,
9828 line_height,
9829 right_margin,
9830 &snapshot,
9831 &hitbox,
9832 &selected_buffer_ids,
9833 &blocks,
9834 &latest_selection_anchors,
9835 window,
9836 cx,
9837 )
9838 })
9839 });
9840
9841 let start_buffer_row =
9842 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot()).row);
9843 let end_buffer_row =
9844 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot()).row);
9845
9846 let scroll_max: gpui::Point<ScrollPixelOffset> = point(
9847 ScrollPixelOffset::from(
9848 ((scroll_width - editor_width) / em_advance).max(0.0),
9849 ),
9850 max_scroll_top,
9851 );
9852
9853 self.editor.update(cx, |editor, cx| {
9854 if editor.scroll_manager.clamp_scroll_left(scroll_max.x) {
9855 scroll_position.x = scroll_position.x.min(scroll_max.x);
9856 }
9857
9858 if needs_horizontal_autoscroll.0
9859 && let Some(new_scroll_position) = editor.autoscroll_horizontally(
9860 start_row,
9861 editor_width,
9862 scroll_width,
9863 em_advance,
9864 &line_layouts,
9865 autoscroll_request,
9866 window,
9867 cx,
9868 )
9869 {
9870 scroll_position = new_scroll_position;
9871 }
9872 });
9873
9874 let scroll_pixel_position = point(
9875 scroll_position.x * f64::from(em_advance),
9876 scroll_position.y * f64::from(line_height),
9877 );
9878 let sticky_headers = if !is_minimap
9879 && is_singleton
9880 && EditorSettings::get_global(cx).sticky_scroll.enabled
9881 {
9882 self.layout_sticky_headers(
9883 &snapshot,
9884 editor_width,
9885 is_row_soft_wrapped,
9886 line_height,
9887 scroll_pixel_position,
9888 content_origin,
9889 &gutter_dimensions,
9890 &gutter_hitbox,
9891 &text_hitbox,
9892 &style,
9893 window,
9894 cx,
9895 )
9896 } else {
9897 None
9898 };
9899 let indent_guides = self.layout_indent_guides(
9900 content_origin,
9901 text_hitbox.origin,
9902 start_buffer_row..end_buffer_row,
9903 scroll_pixel_position,
9904 line_height,
9905 &snapshot,
9906 window,
9907 cx,
9908 );
9909
9910 let crease_trailers =
9911 window.with_element_namespace("crease_trailers", |window| {
9912 self.prepaint_crease_trailers(
9913 crease_trailers,
9914 &line_layouts,
9915 line_height,
9916 content_origin,
9917 scroll_pixel_position,
9918 em_width,
9919 window,
9920 cx,
9921 )
9922 });
9923
9924 let (edit_prediction_popover, edit_prediction_popover_origin) = self
9925 .editor
9926 .update(cx, |editor, cx| {
9927 editor.render_edit_prediction_popover(
9928 &text_hitbox.bounds,
9929 content_origin,
9930 right_margin,
9931 &snapshot,
9932 start_row..end_row,
9933 scroll_position.y,
9934 scroll_position.y + height_in_lines,
9935 &line_layouts,
9936 line_height,
9937 scroll_position,
9938 scroll_pixel_position,
9939 newest_selection_head,
9940 editor_width,
9941 style,
9942 window,
9943 cx,
9944 )
9945 })
9946 .unzip();
9947
9948 let mut inline_diagnostics = self.layout_inline_diagnostics(
9949 &line_layouts,
9950 &crease_trailers,
9951 &row_block_types,
9952 content_origin,
9953 scroll_position,
9954 scroll_pixel_position,
9955 edit_prediction_popover_origin,
9956 start_row,
9957 end_row,
9958 line_height,
9959 em_width,
9960 style,
9961 window,
9962 cx,
9963 );
9964
9965 let mut inline_blame_layout = None;
9966 let mut inline_code_actions = None;
9967 if let Some(newest_selection_head) = newest_selection_head {
9968 let display_row = newest_selection_head.row();
9969 if (start_row..end_row).contains(&display_row)
9970 && !row_block_types.contains_key(&display_row)
9971 {
9972 inline_code_actions = self.layout_inline_code_actions(
9973 newest_selection_head,
9974 content_origin,
9975 scroll_position,
9976 scroll_pixel_position,
9977 line_height,
9978 &snapshot,
9979 window,
9980 cx,
9981 );
9982
9983 let line_ix = display_row.minus(start_row) as usize;
9984 if let (Some(row_info), Some(line_layout), Some(crease_trailer)) = (
9985 row_infos.get(line_ix),
9986 line_layouts.get(line_ix),
9987 crease_trailers.get(line_ix),
9988 ) {
9989 let crease_trailer_layout = crease_trailer.as_ref();
9990 if let Some(layout) = self.layout_inline_blame(
9991 display_row,
9992 row_info,
9993 line_layout,
9994 crease_trailer_layout,
9995 em_width,
9996 content_origin,
9997 scroll_position,
9998 scroll_pixel_position,
9999 line_height,
10000 window,
10001 cx,
10002 ) {
10003 inline_blame_layout = Some(layout);
10004 // Blame overrides inline diagnostics
10005 inline_diagnostics.remove(&display_row);
10006 }
10007 } else {
10008 log::error!(
10009 "bug: line_ix {} is out of bounds - row_infos.len(): {}, \
10010 line_layouts.len(): {}, \
10011 crease_trailers.len(): {}",
10012 line_ix,
10013 row_infos.len(),
10014 line_layouts.len(),
10015 crease_trailers.len(),
10016 );
10017 }
10018 }
10019 }
10020
10021 let blamed_display_rows = self.layout_blame_entries(
10022 &row_infos,
10023 em_width,
10024 scroll_position,
10025 line_height,
10026 &gutter_hitbox,
10027 gutter_dimensions.git_blame_entries_width,
10028 window,
10029 cx,
10030 );
10031
10032 let line_elements = self.prepaint_lines(
10033 start_row,
10034 &mut line_layouts,
10035 line_height,
10036 scroll_position,
10037 scroll_pixel_position,
10038 content_origin,
10039 window,
10040 cx,
10041 );
10042
10043 window.with_element_namespace("blocks", |window| {
10044 self.layout_blocks(
10045 &mut blocks,
10046 &hitbox,
10047 line_height,
10048 scroll_position,
10049 scroll_pixel_position,
10050 window,
10051 cx,
10052 );
10053 });
10054
10055 let cursors = self.collect_cursors(&snapshot, cx);
10056 let visible_row_range = start_row..end_row;
10057 let non_visible_cursors = cursors
10058 .iter()
10059 .any(|c| !visible_row_range.contains(&c.0.row()));
10060
10061 let visible_cursors = self.layout_visible_cursors(
10062 &snapshot,
10063 &selections,
10064 &row_block_types,
10065 start_row..end_row,
10066 &line_layouts,
10067 &text_hitbox,
10068 content_origin,
10069 scroll_position,
10070 scroll_pixel_position,
10071 line_height,
10072 em_width,
10073 em_advance,
10074 autoscroll_containing_element,
10075 window,
10076 cx,
10077 );
10078
10079 let scrollbars_layout = self.layout_scrollbars(
10080 &snapshot,
10081 &scrollbar_layout_information,
10082 content_offset,
10083 scroll_position,
10084 non_visible_cursors,
10085 right_margin,
10086 editor_width,
10087 window,
10088 cx,
10089 );
10090
10091 let gutter_settings = EditorSettings::get_global(cx).gutter;
10092
10093 let context_menu_layout =
10094 if let Some(newest_selection_head) = newest_selection_head {
10095 let newest_selection_point =
10096 newest_selection_head.to_point(&snapshot.display_snapshot);
10097 if (start_row..end_row).contains(&newest_selection_head.row()) {
10098 self.layout_cursor_popovers(
10099 line_height,
10100 &text_hitbox,
10101 content_origin,
10102 right_margin,
10103 start_row,
10104 scroll_pixel_position,
10105 &line_layouts,
10106 newest_selection_head,
10107 newest_selection_point,
10108 style,
10109 window,
10110 cx,
10111 )
10112 } else {
10113 None
10114 }
10115 } else {
10116 None
10117 };
10118
10119 self.layout_gutter_menu(
10120 line_height,
10121 &text_hitbox,
10122 content_origin,
10123 right_margin,
10124 scroll_pixel_position,
10125 gutter_dimensions.width - gutter_dimensions.left_padding,
10126 window,
10127 cx,
10128 );
10129
10130 let test_indicators = if gutter_settings.runnables {
10131 self.layout_run_indicators(
10132 line_height,
10133 start_row..end_row,
10134 &row_infos,
10135 scroll_position,
10136 &gutter_dimensions,
10137 &gutter_hitbox,
10138 &display_hunks,
10139 &snapshot,
10140 &mut breakpoint_rows,
10141 window,
10142 cx,
10143 )
10144 } else {
10145 Vec::new()
10146 };
10147
10148 let show_breakpoints = snapshot
10149 .show_breakpoints
10150 .unwrap_or(gutter_settings.breakpoints);
10151 let breakpoints = if show_breakpoints {
10152 self.layout_breakpoints(
10153 line_height,
10154 start_row..end_row,
10155 scroll_position,
10156 &gutter_dimensions,
10157 &gutter_hitbox,
10158 &display_hunks,
10159 &snapshot,
10160 breakpoint_rows,
10161 &row_infos,
10162 window,
10163 cx,
10164 )
10165 } else {
10166 Vec::new()
10167 };
10168
10169 self.layout_signature_help(
10170 &hitbox,
10171 content_origin,
10172 scroll_pixel_position,
10173 newest_selection_head,
10174 start_row,
10175 &line_layouts,
10176 line_height,
10177 em_width,
10178 context_menu_layout,
10179 window,
10180 cx,
10181 );
10182
10183 if !cx.has_active_drag() {
10184 self.layout_hover_popovers(
10185 &snapshot,
10186 &hitbox,
10187 start_row..end_row,
10188 content_origin,
10189 scroll_pixel_position,
10190 &line_layouts,
10191 line_height,
10192 em_width,
10193 context_menu_layout,
10194 window,
10195 cx,
10196 );
10197
10198 self.layout_blame_popover(&snapshot, &hitbox, line_height, window, cx);
10199 }
10200
10201 let mouse_context_menu = self.layout_mouse_context_menu(
10202 &snapshot,
10203 start_row..end_row,
10204 content_origin,
10205 window,
10206 cx,
10207 );
10208
10209 window.with_element_namespace("crease_toggles", |window| {
10210 self.prepaint_crease_toggles(
10211 &mut crease_toggles,
10212 line_height,
10213 &gutter_dimensions,
10214 gutter_settings,
10215 scroll_pixel_position,
10216 &gutter_hitbox,
10217 window,
10218 cx,
10219 )
10220 });
10221
10222 window.with_element_namespace("expand_toggles", |window| {
10223 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
10224 });
10225
10226 let wrap_guides = self.layout_wrap_guides(
10227 em_advance,
10228 scroll_position,
10229 content_origin,
10230 scrollbars_layout.as_ref(),
10231 vertical_scrollbar_width,
10232 &hitbox,
10233 window,
10234 cx,
10235 );
10236
10237 let minimap = window.with_element_namespace("minimap", |window| {
10238 self.layout_minimap(
10239 &snapshot,
10240 minimap_width,
10241 scroll_position,
10242 &scrollbar_layout_information,
10243 scrollbars_layout.as_ref(),
10244 window,
10245 cx,
10246 )
10247 });
10248
10249 let invisible_symbol_font_size = font_size / 2.;
10250 let whitespace_map = &self
10251 .editor
10252 .read(cx)
10253 .buffer
10254 .read(cx)
10255 .language_settings(cx)
10256 .whitespace_map;
10257
10258 let tab_char = whitespace_map.tab.clone();
10259 let tab_len = tab_char.len();
10260 let tab_invisible = window.text_system().shape_line(
10261 tab_char,
10262 invisible_symbol_font_size,
10263 &[TextRun {
10264 len: tab_len,
10265 font: self.style.text.font(),
10266 color: cx.theme().colors().editor_invisible,
10267 ..Default::default()
10268 }],
10269 None,
10270 );
10271
10272 let space_char = whitespace_map.space.clone();
10273 let space_len = space_char.len();
10274 let space_invisible = window.text_system().shape_line(
10275 space_char,
10276 invisible_symbol_font_size,
10277 &[TextRun {
10278 len: space_len,
10279 font: self.style.text.font(),
10280 color: cx.theme().colors().editor_invisible,
10281 ..Default::default()
10282 }],
10283 None,
10284 );
10285
10286 let mode = snapshot.mode.clone();
10287
10288 let (diff_hunk_controls, diff_hunk_control_bounds) = if is_read_only {
10289 (vec![], vec![])
10290 } else {
10291 self.layout_diff_hunk_controls(
10292 start_row..end_row,
10293 &row_infos,
10294 &text_hitbox,
10295 newest_selection_head,
10296 line_height,
10297 right_margin,
10298 scroll_pixel_position,
10299 &display_hunks,
10300 &highlighted_rows,
10301 self.editor.clone(),
10302 window,
10303 cx,
10304 )
10305 };
10306
10307 let position_map = Rc::new(PositionMap {
10308 size: bounds.size,
10309 visible_row_range,
10310 scroll_position,
10311 scroll_pixel_position,
10312 scroll_max,
10313 line_layouts,
10314 line_height,
10315 em_width,
10316 em_advance,
10317 snapshot,
10318 gutter_hitbox: gutter_hitbox.clone(),
10319 text_hitbox: text_hitbox.clone(),
10320 inline_blame_bounds: inline_blame_layout
10321 .as_ref()
10322 .map(|layout| (layout.bounds, layout.buffer_id, layout.entry.clone())),
10323 display_hunks: display_hunks.clone(),
10324 diff_hunk_control_bounds,
10325 });
10326
10327 self.editor.update(cx, |editor, _| {
10328 editor.last_position_map = Some(position_map.clone())
10329 });
10330
10331 EditorLayout {
10332 mode,
10333 position_map,
10334 visible_display_row_range: start_row..end_row,
10335 wrap_guides,
10336 indent_guides,
10337 hitbox,
10338 gutter_hitbox,
10339 display_hunks,
10340 content_origin,
10341 scrollbars_layout,
10342 minimap,
10343 active_rows,
10344 highlighted_rows,
10345 highlighted_ranges,
10346 highlighted_gutter_ranges,
10347 redacted_ranges,
10348 document_colors,
10349 line_elements,
10350 line_numbers,
10351 blamed_display_rows,
10352 inline_diagnostics,
10353 inline_blame_layout,
10354 inline_code_actions,
10355 blocks,
10356 cursors,
10357 visible_cursors,
10358 selections,
10359 edit_prediction_popover,
10360 diff_hunk_controls,
10361 mouse_context_menu,
10362 test_indicators,
10363 breakpoints,
10364 crease_toggles,
10365 crease_trailers,
10366 tab_invisible,
10367 space_invisible,
10368 sticky_buffer_header,
10369 sticky_headers,
10370 expand_toggles,
10371 }
10372 })
10373 })
10374 })
10375 }
10376
10377 fn paint(
10378 &mut self,
10379 _: Option<&GlobalElementId>,
10380 _inspector_id: Option<&gpui::InspectorElementId>,
10381 bounds: Bounds<gpui::Pixels>,
10382 _: &mut Self::RequestLayoutState,
10383 layout: &mut Self::PrepaintState,
10384 window: &mut Window,
10385 cx: &mut App,
10386 ) {
10387 if !layout.mode.is_minimap() {
10388 let focus_handle = self.editor.focus_handle(cx);
10389 let key_context = self
10390 .editor
10391 .update(cx, |editor, cx| editor.key_context(window, cx));
10392
10393 window.set_key_context(key_context);
10394 window.handle_input(
10395 &focus_handle,
10396 ElementInputHandler::new(bounds, self.editor.clone()),
10397 cx,
10398 );
10399 self.register_actions(window, cx);
10400 self.register_key_listeners(window, cx, layout);
10401 }
10402
10403 let text_style = TextStyleRefinement {
10404 font_size: Some(self.style.text.font_size),
10405 line_height: Some(self.style.text.line_height),
10406 ..Default::default()
10407 };
10408 let rem_size = self.rem_size(cx);
10409 window.with_rem_size(rem_size, |window| {
10410 window.with_text_style(Some(text_style), |window| {
10411 window.with_content_mask(Some(ContentMask { bounds }), |window| {
10412 self.paint_mouse_listeners(layout, window, cx);
10413 self.paint_background(layout, window, cx);
10414 self.paint_indent_guides(layout, window, cx);
10415
10416 if layout.gutter_hitbox.size.width > Pixels::ZERO {
10417 self.paint_blamed_display_rows(layout, window, cx);
10418 self.paint_line_numbers(layout, window, cx);
10419 }
10420
10421 self.paint_text(layout, window, cx);
10422
10423 if layout.gutter_hitbox.size.width > Pixels::ZERO {
10424 self.paint_gutter_highlights(layout, window, cx);
10425 self.paint_gutter_indicators(layout, window, cx);
10426 }
10427
10428 if !layout.blocks.is_empty() {
10429 window.with_element_namespace("blocks", |window| {
10430 self.paint_blocks(layout, window, cx);
10431 });
10432 }
10433
10434 window.with_element_namespace("blocks", |window| {
10435 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
10436 sticky_header.paint(window, cx)
10437 }
10438 });
10439
10440 self.paint_sticky_headers(layout, window, cx);
10441 self.paint_minimap(layout, window, cx);
10442 self.paint_scrollbars(layout, window, cx);
10443 self.paint_edit_prediction_popover(layout, window, cx);
10444 self.paint_mouse_context_menu(layout, window, cx);
10445 });
10446 })
10447 })
10448 }
10449}
10450
10451pub(super) fn gutter_bounds(
10452 editor_bounds: Bounds<Pixels>,
10453 gutter_dimensions: GutterDimensions,
10454) -> Bounds<Pixels> {
10455 Bounds {
10456 origin: editor_bounds.origin,
10457 size: size(gutter_dimensions.width, editor_bounds.size.height),
10458 }
10459}
10460
10461#[derive(Clone, Copy)]
10462struct ContextMenuLayout {
10463 y_flipped: bool,
10464 bounds: Bounds<Pixels>,
10465}
10466
10467/// Holds information required for layouting the editor scrollbars.
10468struct ScrollbarLayoutInformation {
10469 /// The bounds of the editor area (excluding the content offset).
10470 editor_bounds: Bounds<Pixels>,
10471 /// The available range to scroll within the document.
10472 scroll_range: Size<Pixels>,
10473 /// The space available for one glyph in the editor.
10474 glyph_grid_cell: Size<Pixels>,
10475}
10476
10477impl ScrollbarLayoutInformation {
10478 pub fn new(
10479 editor_bounds: Bounds<Pixels>,
10480 glyph_grid_cell: Size<Pixels>,
10481 document_size: Size<Pixels>,
10482 longest_line_blame_width: Pixels,
10483 settings: &EditorSettings,
10484 ) -> Self {
10485 let vertical_overscroll = match settings.scroll_beyond_last_line {
10486 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
10487 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
10488 ScrollBeyondLastLine::VerticalScrollMargin => {
10489 (1.0 + settings.vertical_scroll_margin) as f32 * glyph_grid_cell.height
10490 }
10491 };
10492
10493 let overscroll = size(longest_line_blame_width, vertical_overscroll);
10494
10495 ScrollbarLayoutInformation {
10496 editor_bounds,
10497 scroll_range: document_size + overscroll,
10498 glyph_grid_cell,
10499 }
10500 }
10501}
10502
10503impl IntoElement for EditorElement {
10504 type Element = Self;
10505
10506 fn into_element(self) -> Self::Element {
10507 self
10508 }
10509}
10510
10511pub struct EditorLayout {
10512 position_map: Rc<PositionMap>,
10513 hitbox: Hitbox,
10514 gutter_hitbox: Hitbox,
10515 content_origin: gpui::Point<Pixels>,
10516 scrollbars_layout: Option<EditorScrollbars>,
10517 minimap: Option<MinimapLayout>,
10518 mode: EditorMode,
10519 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
10520 indent_guides: Option<Vec<IndentGuideLayout>>,
10521 visible_display_row_range: Range<DisplayRow>,
10522 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
10523 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
10524 line_elements: SmallVec<[AnyElement; 1]>,
10525 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
10526 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
10527 blamed_display_rows: Option<Vec<AnyElement>>,
10528 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
10529 inline_blame_layout: Option<InlineBlameLayout>,
10530 inline_code_actions: Option<AnyElement>,
10531 blocks: Vec<BlockLayout>,
10532 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
10533 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
10534 redacted_ranges: Vec<Range<DisplayPoint>>,
10535 cursors: Vec<(DisplayPoint, Hsla)>,
10536 visible_cursors: Vec<CursorLayout>,
10537 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
10538 test_indicators: Vec<AnyElement>,
10539 breakpoints: Vec<AnyElement>,
10540 crease_toggles: Vec<Option<AnyElement>>,
10541 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
10542 diff_hunk_controls: Vec<AnyElement>,
10543 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
10544 edit_prediction_popover: Option<AnyElement>,
10545 mouse_context_menu: Option<AnyElement>,
10546 tab_invisible: ShapedLine,
10547 space_invisible: ShapedLine,
10548 sticky_buffer_header: Option<AnyElement>,
10549 sticky_headers: Option<StickyHeaders>,
10550 document_colors: Option<(DocumentColorsRenderMode, Vec<(Range<DisplayPoint>, Hsla)>)>,
10551}
10552
10553struct StickyHeaders {
10554 lines: Vec<StickyHeaderLine>,
10555 gutter_background: Hsla,
10556 content_background: Hsla,
10557 gutter_right_padding: Pixels,
10558}
10559
10560struct StickyHeaderLine {
10561 row: DisplayRow,
10562 offset: Pixels,
10563 line: LineWithInvisibles,
10564 line_number: Option<ShapedLine>,
10565 elements: SmallVec<[AnyElement; 1]>,
10566 available_text_width: Pixels,
10567 target_anchor: Anchor,
10568 hitbox: Hitbox,
10569}
10570
10571impl EditorLayout {
10572 fn line_end_overshoot(&self) -> Pixels {
10573 0.15 * self.position_map.line_height
10574 }
10575}
10576
10577impl StickyHeaders {
10578 fn paint(
10579 &mut self,
10580 layout: &mut EditorLayout,
10581 whitespace_setting: ShowWhitespaceSetting,
10582 window: &mut Window,
10583 cx: &mut App,
10584 ) {
10585 let line_height = layout.position_map.line_height;
10586
10587 for line in self.lines.iter_mut().rev() {
10588 window.paint_layer(
10589 Bounds::new(
10590 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
10591 size(line.hitbox.size.width, line_height),
10592 ),
10593 |window| {
10594 let gutter_bounds = Bounds::new(
10595 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
10596 size(layout.gutter_hitbox.size.width, line_height),
10597 );
10598 window.paint_quad(fill(gutter_bounds, self.gutter_background));
10599
10600 let text_bounds = Bounds::new(
10601 layout.position_map.text_hitbox.origin + point(Pixels::ZERO, line.offset),
10602 size(line.available_text_width, line_height),
10603 );
10604 window.paint_quad(fill(text_bounds, self.content_background));
10605
10606 if line.hitbox.is_hovered(window) {
10607 let hover_overlay = cx.theme().colors().panel_overlay_hover;
10608 window.paint_quad(fill(gutter_bounds, hover_overlay));
10609 window.paint_quad(fill(text_bounds, hover_overlay));
10610 }
10611
10612 line.paint(
10613 layout,
10614 self.gutter_right_padding,
10615 line.available_text_width,
10616 layout.content_origin,
10617 line_height,
10618 whitespace_setting,
10619 window,
10620 cx,
10621 );
10622 },
10623 );
10624
10625 window.set_cursor_style(CursorStyle::PointingHand, &line.hitbox);
10626 }
10627 }
10628}
10629
10630impl StickyHeaderLine {
10631 fn new(
10632 row: DisplayRow,
10633 offset: Pixels,
10634 mut line: LineWithInvisibles,
10635 line_number: Option<ShapedLine>,
10636 target_anchor: Anchor,
10637 line_height: Pixels,
10638 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
10639 content_origin: gpui::Point<Pixels>,
10640 gutter_hitbox: &Hitbox,
10641 text_hitbox: &Hitbox,
10642 window: &mut Window,
10643 cx: &mut App,
10644 ) -> Self {
10645 let mut elements = SmallVec::<[AnyElement; 1]>::new();
10646 line.prepaint_with_custom_offset(
10647 line_height,
10648 scroll_pixel_position,
10649 content_origin,
10650 offset,
10651 &mut elements,
10652 window,
10653 cx,
10654 );
10655
10656 let hitbox_bounds = Bounds::new(
10657 gutter_hitbox.origin + point(Pixels::ZERO, offset),
10658 size(text_hitbox.right() - gutter_hitbox.left(), line_height),
10659 );
10660 let available_text_width =
10661 (hitbox_bounds.size.width - gutter_hitbox.size.width).max(Pixels::ZERO);
10662
10663 Self {
10664 row,
10665 offset,
10666 line,
10667 line_number,
10668 elements,
10669 available_text_width,
10670 target_anchor,
10671 hitbox: window.insert_hitbox(hitbox_bounds, HitboxBehavior::BlockMouseExceptScroll),
10672 }
10673 }
10674
10675 fn paint(
10676 &mut self,
10677 layout: &EditorLayout,
10678 gutter_right_padding: Pixels,
10679 available_text_width: Pixels,
10680 content_origin: gpui::Point<Pixels>,
10681 line_height: Pixels,
10682 whitespace_setting: ShowWhitespaceSetting,
10683 window: &mut Window,
10684 cx: &mut App,
10685 ) {
10686 window.with_content_mask(
10687 Some(ContentMask {
10688 bounds: Bounds::new(
10689 layout.position_map.text_hitbox.bounds.origin
10690 + point(Pixels::ZERO, self.offset),
10691 size(available_text_width, line_height),
10692 ),
10693 }),
10694 |window| {
10695 self.line.draw_with_custom_offset(
10696 layout,
10697 self.row,
10698 content_origin,
10699 self.offset,
10700 whitespace_setting,
10701 &[],
10702 window,
10703 cx,
10704 );
10705 for element in &mut self.elements {
10706 element.paint(window, cx);
10707 }
10708 },
10709 );
10710
10711 if let Some(line_number) = &self.line_number {
10712 let gutter_origin = layout.gutter_hitbox.origin + point(Pixels::ZERO, self.offset);
10713 let gutter_width = layout.gutter_hitbox.size.width;
10714 let origin = point(
10715 gutter_origin.x + gutter_width - gutter_right_padding - line_number.width,
10716 gutter_origin.y,
10717 );
10718 line_number.paint(origin, line_height, window, cx).log_err();
10719 }
10720 }
10721}
10722
10723#[derive(Debug)]
10724struct LineNumberSegment {
10725 shaped_line: ShapedLine,
10726 hitbox: Option<Hitbox>,
10727}
10728
10729#[derive(Debug)]
10730struct LineNumberLayout {
10731 segments: SmallVec<[LineNumberSegment; 1]>,
10732}
10733
10734struct ColoredRange<T> {
10735 start: T,
10736 end: T,
10737 color: Hsla,
10738}
10739
10740impl Along for ScrollbarAxes {
10741 type Unit = bool;
10742
10743 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
10744 match axis {
10745 ScrollbarAxis::Horizontal => self.horizontal,
10746 ScrollbarAxis::Vertical => self.vertical,
10747 }
10748 }
10749
10750 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
10751 match axis {
10752 ScrollbarAxis::Horizontal => ScrollbarAxes {
10753 horizontal: f(self.horizontal),
10754 vertical: self.vertical,
10755 },
10756 ScrollbarAxis::Vertical => ScrollbarAxes {
10757 horizontal: self.horizontal,
10758 vertical: f(self.vertical),
10759 },
10760 }
10761 }
10762}
10763
10764#[derive(Clone)]
10765struct EditorScrollbars {
10766 pub vertical: Option<ScrollbarLayout>,
10767 pub horizontal: Option<ScrollbarLayout>,
10768 pub visible: bool,
10769}
10770
10771impl EditorScrollbars {
10772 pub fn from_scrollbar_axes(
10773 show_scrollbar: ScrollbarAxes,
10774 layout_information: &ScrollbarLayoutInformation,
10775 content_offset: gpui::Point<Pixels>,
10776 scroll_position: gpui::Point<f64>,
10777 scrollbar_width: Pixels,
10778 right_margin: Pixels,
10779 editor_width: Pixels,
10780 show_scrollbars: bool,
10781 scrollbar_state: Option<&ActiveScrollbarState>,
10782 window: &mut Window,
10783 ) -> Self {
10784 let ScrollbarLayoutInformation {
10785 editor_bounds,
10786 scroll_range,
10787 glyph_grid_cell,
10788 } = layout_information;
10789
10790 let viewport_size = size(editor_width, editor_bounds.size.height);
10791
10792 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
10793 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
10794 Corner::BottomLeft,
10795 editor_bounds.bottom_left(),
10796 size(
10797 // The horizontal viewport size differs from the space available for the
10798 // horizontal scrollbar, so we have to manually stitch it together here.
10799 editor_bounds.size.width - right_margin,
10800 scrollbar_width,
10801 ),
10802 ),
10803 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
10804 Corner::TopRight,
10805 editor_bounds.top_right(),
10806 size(scrollbar_width, viewport_size.height),
10807 ),
10808 };
10809
10810 let mut create_scrollbar_layout = |axis| {
10811 let viewport_size = viewport_size.along(axis);
10812 let scroll_range = scroll_range.along(axis);
10813
10814 // We always want a vertical scrollbar track for scrollbar diagnostic visibility.
10815 (show_scrollbar.along(axis)
10816 && (axis == ScrollbarAxis::Vertical || scroll_range > viewport_size))
10817 .then(|| {
10818 ScrollbarLayout::new(
10819 window.insert_hitbox(scrollbar_bounds_for(axis), HitboxBehavior::Normal),
10820 viewport_size,
10821 scroll_range,
10822 glyph_grid_cell.along(axis),
10823 content_offset.along(axis),
10824 scroll_position.along(axis),
10825 show_scrollbars,
10826 axis,
10827 )
10828 .with_thumb_state(
10829 scrollbar_state.and_then(|state| state.thumb_state_for_axis(axis)),
10830 )
10831 })
10832 };
10833
10834 Self {
10835 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
10836 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
10837 visible: show_scrollbars,
10838 }
10839 }
10840
10841 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
10842 [
10843 (&self.vertical, ScrollbarAxis::Vertical),
10844 (&self.horizontal, ScrollbarAxis::Horizontal),
10845 ]
10846 .into_iter()
10847 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
10848 }
10849
10850 /// Returns the currently hovered scrollbar axis, if any.
10851 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
10852 self.iter_scrollbars()
10853 .find(|s| s.0.hitbox.is_hovered(window))
10854 }
10855}
10856
10857#[derive(Clone)]
10858struct ScrollbarLayout {
10859 hitbox: Hitbox,
10860 visible_range: Range<ScrollOffset>,
10861 text_unit_size: Pixels,
10862 thumb_bounds: Option<Bounds<Pixels>>,
10863 thumb_state: ScrollbarThumbState,
10864}
10865
10866impl ScrollbarLayout {
10867 const BORDER_WIDTH: Pixels = px(1.0);
10868 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
10869 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
10870 const MIN_THUMB_SIZE: Pixels = px(25.0);
10871
10872 fn new(
10873 scrollbar_track_hitbox: Hitbox,
10874 viewport_size: Pixels,
10875 scroll_range: Pixels,
10876 glyph_space: Pixels,
10877 content_offset: Pixels,
10878 scroll_position: ScrollOffset,
10879 show_thumb: bool,
10880 axis: ScrollbarAxis,
10881 ) -> Self {
10882 let track_bounds = scrollbar_track_hitbox.bounds;
10883 // The length of the track available to the scrollbar thumb. We deliberately
10884 // exclude the content size here so that the thumb aligns with the content.
10885 let track_length = track_bounds.size.along(axis) - content_offset;
10886
10887 Self::new_with_hitbox_and_track_length(
10888 scrollbar_track_hitbox,
10889 track_length,
10890 viewport_size,
10891 scroll_range.into(),
10892 glyph_space,
10893 content_offset.into(),
10894 scroll_position,
10895 show_thumb,
10896 axis,
10897 )
10898 }
10899
10900 fn for_minimap(
10901 minimap_track_hitbox: Hitbox,
10902 visible_lines: f64,
10903 total_editor_lines: f64,
10904 minimap_line_height: Pixels,
10905 scroll_position: ScrollOffset,
10906 minimap_scroll_top: ScrollOffset,
10907 show_thumb: bool,
10908 ) -> Self {
10909 // The scrollbar thumb size is calculated as
10910 // (visible_content/total_content) Γ scrollbar_track_length.
10911 //
10912 // For the minimap's thumb layout, we leverage this by setting the
10913 // scrollbar track length to the entire document size (using minimap line
10914 // height). This creates a thumb that exactly represents the editor
10915 // viewport scaled to minimap proportions.
10916 //
10917 // We adjust the thumb position relative to `minimap_scroll_top` to
10918 // accommodate for the deliberately oversized track.
10919 //
10920 // This approach ensures that the minimap thumb accurately reflects the
10921 // editor's current scroll position whilst nicely synchronizing the minimap
10922 // thumb and scrollbar thumb.
10923 let scroll_range = total_editor_lines * f64::from(minimap_line_height);
10924 let viewport_size = visible_lines * f64::from(minimap_line_height);
10925
10926 let track_top_offset = -minimap_scroll_top * f64::from(minimap_line_height);
10927
10928 Self::new_with_hitbox_and_track_length(
10929 minimap_track_hitbox,
10930 Pixels::from(scroll_range),
10931 Pixels::from(viewport_size),
10932 scroll_range,
10933 minimap_line_height,
10934 track_top_offset,
10935 scroll_position,
10936 show_thumb,
10937 ScrollbarAxis::Vertical,
10938 )
10939 }
10940
10941 fn new_with_hitbox_and_track_length(
10942 scrollbar_track_hitbox: Hitbox,
10943 track_length: Pixels,
10944 viewport_size: Pixels,
10945 scroll_range: f64,
10946 glyph_space: Pixels,
10947 content_offset: ScrollOffset,
10948 scroll_position: ScrollOffset,
10949 show_thumb: bool,
10950 axis: ScrollbarAxis,
10951 ) -> Self {
10952 let text_units_per_page = viewport_size.to_f64() / glyph_space.to_f64();
10953 let visible_range = scroll_position..scroll_position + text_units_per_page;
10954 let total_text_units = scroll_range / glyph_space.to_f64();
10955
10956 let thumb_percentage = text_units_per_page / total_text_units;
10957 let thumb_size = Pixels::from(ScrollOffset::from(track_length) * thumb_percentage)
10958 .max(ScrollbarLayout::MIN_THUMB_SIZE)
10959 .min(track_length);
10960
10961 let text_unit_divisor = (total_text_units - text_units_per_page).max(0.);
10962
10963 let content_larger_than_viewport = text_unit_divisor > 0.;
10964
10965 let text_unit_size = if content_larger_than_viewport {
10966 Pixels::from(ScrollOffset::from(track_length - thumb_size) / text_unit_divisor)
10967 } else {
10968 glyph_space
10969 };
10970
10971 let thumb_bounds = (show_thumb && content_larger_than_viewport).then(|| {
10972 Self::thumb_bounds(
10973 &scrollbar_track_hitbox,
10974 content_offset,
10975 visible_range.start,
10976 text_unit_size,
10977 thumb_size,
10978 axis,
10979 )
10980 });
10981
10982 ScrollbarLayout {
10983 hitbox: scrollbar_track_hitbox,
10984 visible_range,
10985 text_unit_size,
10986 thumb_bounds,
10987 thumb_state: Default::default(),
10988 }
10989 }
10990
10991 fn with_thumb_state(self, thumb_state: Option<ScrollbarThumbState>) -> Self {
10992 if let Some(thumb_state) = thumb_state {
10993 Self {
10994 thumb_state,
10995 ..self
10996 }
10997 } else {
10998 self
10999 }
11000 }
11001
11002 fn thumb_bounds(
11003 scrollbar_track: &Hitbox,
11004 content_offset: f64,
11005 visible_range_start: f64,
11006 text_unit_size: Pixels,
11007 thumb_size: Pixels,
11008 axis: ScrollbarAxis,
11009 ) -> Bounds<Pixels> {
11010 let thumb_origin = scrollbar_track.origin.apply_along(axis, |origin| {
11011 origin
11012 + Pixels::from(
11013 content_offset + visible_range_start * ScrollOffset::from(text_unit_size),
11014 )
11015 });
11016 Bounds::new(
11017 thumb_origin,
11018 scrollbar_track.size.apply_along(axis, |_| thumb_size),
11019 )
11020 }
11021
11022 fn thumb_hovered(&self, position: &gpui::Point<Pixels>) -> bool {
11023 self.thumb_bounds
11024 .is_some_and(|bounds| bounds.contains(position))
11025 }
11026
11027 fn marker_quads_for_ranges(
11028 &self,
11029 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
11030 column: Option<usize>,
11031 ) -> Vec<PaintQuad> {
11032 struct MinMax {
11033 min: Pixels,
11034 max: Pixels,
11035 }
11036 let (x_range, height_limit) = if let Some(column) = column {
11037 let column_width = ((self.hitbox.size.width - Self::BORDER_WIDTH) / 3.0).floor();
11038 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
11039 let end = start + column_width;
11040 (
11041 Range { start, end },
11042 MinMax {
11043 min: Self::MIN_MARKER_HEIGHT,
11044 max: px(f32::MAX),
11045 },
11046 )
11047 } else {
11048 (
11049 Range {
11050 start: Self::BORDER_WIDTH,
11051 end: self.hitbox.size.width,
11052 },
11053 MinMax {
11054 min: Self::LINE_MARKER_HEIGHT,
11055 max: Self::LINE_MARKER_HEIGHT,
11056 },
11057 )
11058 };
11059
11060 let row_to_y = |row: DisplayRow| row.as_f64() as f32 * self.text_unit_size;
11061 let mut pixel_ranges = row_ranges
11062 .into_iter()
11063 .map(|range| {
11064 let start_y = row_to_y(range.start);
11065 let end_y = row_to_y(range.end)
11066 + self
11067 .text_unit_size
11068 .max(height_limit.min)
11069 .min(height_limit.max);
11070 ColoredRange {
11071 start: start_y,
11072 end: end_y,
11073 color: range.color,
11074 }
11075 })
11076 .peekable();
11077
11078 let mut quads = Vec::new();
11079 while let Some(mut pixel_range) = pixel_ranges.next() {
11080 while let Some(next_pixel_range) = pixel_ranges.peek() {
11081 if pixel_range.end >= next_pixel_range.start - px(1.0)
11082 && pixel_range.color == next_pixel_range.color
11083 {
11084 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
11085 pixel_ranges.next();
11086 } else {
11087 break;
11088 }
11089 }
11090
11091 let bounds = Bounds::from_corners(
11092 point(x_range.start, pixel_range.start),
11093 point(x_range.end, pixel_range.end),
11094 );
11095 quads.push(quad(
11096 bounds,
11097 Corners::default(),
11098 pixel_range.color,
11099 Edges::default(),
11100 Hsla::transparent_black(),
11101 BorderStyle::default(),
11102 ));
11103 }
11104
11105 quads
11106 }
11107}
11108
11109struct MinimapLayout {
11110 pub minimap: AnyElement,
11111 pub thumb_layout: ScrollbarLayout,
11112 pub minimap_scroll_top: ScrollOffset,
11113 pub minimap_line_height: Pixels,
11114 pub thumb_border_style: MinimapThumbBorder,
11115 pub max_scroll_top: ScrollOffset,
11116}
11117
11118impl MinimapLayout {
11119 /// The minimum width of the minimap in columns. If the minimap is smaller than this, it will be hidden.
11120 const MINIMAP_MIN_WIDTH_COLUMNS: f32 = 20.;
11121 /// The minimap width as a percentage of the editor width.
11122 const MINIMAP_WIDTH_PCT: f32 = 0.15;
11123 /// Calculates the scroll top offset the minimap editor has to have based on the
11124 /// current scroll progress.
11125 fn calculate_minimap_top_offset(
11126 document_lines: f64,
11127 visible_editor_lines: f64,
11128 visible_minimap_lines: f64,
11129 scroll_position: f64,
11130 ) -> ScrollOffset {
11131 let non_visible_document_lines = (document_lines - visible_editor_lines).max(0.);
11132 if non_visible_document_lines == 0. {
11133 0.
11134 } else {
11135 let scroll_percentage = (scroll_position / non_visible_document_lines).clamp(0., 1.);
11136 scroll_percentage * (document_lines - visible_minimap_lines).max(0.)
11137 }
11138 }
11139}
11140
11141struct CreaseTrailerLayout {
11142 element: AnyElement,
11143 bounds: Bounds<Pixels>,
11144}
11145
11146pub(crate) struct PositionMap {
11147 pub size: Size<Pixels>,
11148 pub line_height: Pixels,
11149 pub scroll_position: gpui::Point<ScrollOffset>,
11150 pub scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
11151 pub scroll_max: gpui::Point<ScrollOffset>,
11152 pub em_width: Pixels,
11153 pub em_advance: Pixels,
11154 pub visible_row_range: Range<DisplayRow>,
11155 pub line_layouts: Vec<LineWithInvisibles>,
11156 pub snapshot: EditorSnapshot,
11157 pub text_hitbox: Hitbox,
11158 pub gutter_hitbox: Hitbox,
11159 pub inline_blame_bounds: Option<(Bounds<Pixels>, BufferId, BlameEntry)>,
11160 pub display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
11161 pub diff_hunk_control_bounds: Vec<(DisplayRow, Bounds<Pixels>)>,
11162}
11163
11164#[derive(Debug, Copy, Clone)]
11165pub struct PointForPosition {
11166 pub previous_valid: DisplayPoint,
11167 pub next_valid: DisplayPoint,
11168 pub exact_unclipped: DisplayPoint,
11169 pub column_overshoot_after_line_end: u32,
11170}
11171
11172impl PointForPosition {
11173 pub fn as_valid(&self) -> Option<DisplayPoint> {
11174 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
11175 Some(self.previous_valid)
11176 } else {
11177 None
11178 }
11179 }
11180
11181 pub fn intersects_selection(&self, selection: &Selection<DisplayPoint>) -> bool {
11182 let Some(valid_point) = self.as_valid() else {
11183 return false;
11184 };
11185 let range = selection.range();
11186
11187 let candidate_row = valid_point.row();
11188 let candidate_col = valid_point.column();
11189
11190 let start_row = range.start.row();
11191 let start_col = range.start.column();
11192 let end_row = range.end.row();
11193 let end_col = range.end.column();
11194
11195 if candidate_row < start_row || candidate_row > end_row {
11196 false
11197 } else if start_row == end_row {
11198 candidate_col >= start_col && candidate_col < end_col
11199 } else if candidate_row == start_row {
11200 candidate_col >= start_col
11201 } else if candidate_row == end_row {
11202 candidate_col < end_col
11203 } else {
11204 true
11205 }
11206 }
11207}
11208
11209impl PositionMap {
11210 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
11211 let text_bounds = self.text_hitbox.bounds;
11212 let scroll_position = self.snapshot.scroll_position();
11213 let position = position - text_bounds.origin;
11214 let y = position.y.max(px(0.)).min(self.size.height);
11215 let x = position.x + (scroll_position.x as f32 * self.em_advance);
11216 let row = ((y / self.line_height) as f64 + scroll_position.y) as u32;
11217
11218 let (column, x_overshoot_after_line_end) = if let Some(line) = self
11219 .line_layouts
11220 .get(row as usize - scroll_position.y as usize)
11221 {
11222 if let Some(ix) = line.index_for_x(x) {
11223 (ix as u32, px(0.))
11224 } else {
11225 (line.len as u32, px(0.).max(x - line.width))
11226 }
11227 } else {
11228 (0, x)
11229 };
11230
11231 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
11232 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
11233 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
11234
11235 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
11236 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
11237 PointForPosition {
11238 previous_valid,
11239 next_valid,
11240 exact_unclipped,
11241 column_overshoot_after_line_end,
11242 }
11243 }
11244}
11245
11246struct BlockLayout {
11247 id: BlockId,
11248 x_offset: Pixels,
11249 row: Option<DisplayRow>,
11250 element: AnyElement,
11251 available_space: Size<AvailableSpace>,
11252 style: BlockStyle,
11253 overlaps_gutter: bool,
11254 is_buffer_header: bool,
11255}
11256
11257pub fn layout_line(
11258 row: DisplayRow,
11259 snapshot: &EditorSnapshot,
11260 style: &EditorStyle,
11261 text_width: Pixels,
11262 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
11263 window: &mut Window,
11264 cx: &mut App,
11265) -> LineWithInvisibles {
11266 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
11267 LineWithInvisibles::from_chunks(
11268 chunks,
11269 style,
11270 MAX_LINE_LEN,
11271 1,
11272 &snapshot.mode,
11273 text_width,
11274 is_row_soft_wrapped,
11275 &[],
11276 window,
11277 cx,
11278 )
11279 .pop()
11280 .unwrap()
11281}
11282
11283#[derive(Debug)]
11284pub struct IndentGuideLayout {
11285 origin: gpui::Point<Pixels>,
11286 length: Pixels,
11287 single_indent_width: Pixels,
11288 depth: u32,
11289 active: bool,
11290 settings: IndentGuideSettings,
11291}
11292
11293pub struct CursorLayout {
11294 origin: gpui::Point<Pixels>,
11295 block_width: Pixels,
11296 line_height: Pixels,
11297 color: Hsla,
11298 shape: CursorShape,
11299 block_text: Option<ShapedLine>,
11300 cursor_name: Option<AnyElement>,
11301}
11302
11303#[derive(Debug)]
11304pub struct CursorName {
11305 string: SharedString,
11306 color: Hsla,
11307 is_top_row: bool,
11308}
11309
11310impl CursorLayout {
11311 pub fn new(
11312 origin: gpui::Point<Pixels>,
11313 block_width: Pixels,
11314 line_height: Pixels,
11315 color: Hsla,
11316 shape: CursorShape,
11317 block_text: Option<ShapedLine>,
11318 ) -> CursorLayout {
11319 CursorLayout {
11320 origin,
11321 block_width,
11322 line_height,
11323 color,
11324 shape,
11325 block_text,
11326 cursor_name: None,
11327 }
11328 }
11329
11330 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
11331 Bounds {
11332 origin: self.origin + origin,
11333 size: size(self.block_width, self.line_height),
11334 }
11335 }
11336
11337 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
11338 match self.shape {
11339 CursorShape::Bar => Bounds {
11340 origin: self.origin + origin,
11341 size: size(px(2.0), self.line_height),
11342 },
11343 CursorShape::Block | CursorShape::Hollow => Bounds {
11344 origin: self.origin + origin,
11345 size: size(self.block_width, self.line_height),
11346 },
11347 CursorShape::Underline => Bounds {
11348 origin: self.origin
11349 + origin
11350 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
11351 size: size(self.block_width, px(2.0)),
11352 },
11353 }
11354 }
11355
11356 pub fn layout(
11357 &mut self,
11358 origin: gpui::Point<Pixels>,
11359 cursor_name: Option<CursorName>,
11360 window: &mut Window,
11361 cx: &mut App,
11362 ) {
11363 if let Some(cursor_name) = cursor_name {
11364 let bounds = self.bounds(origin);
11365 let text_size = self.line_height / 1.5;
11366
11367 let name_origin = if cursor_name.is_top_row {
11368 point(bounds.right() - px(1.), bounds.top())
11369 } else {
11370 match self.shape {
11371 CursorShape::Bar => point(
11372 bounds.right() - px(2.),
11373 bounds.top() - text_size / 2. - px(1.),
11374 ),
11375 _ => point(
11376 bounds.right() - px(1.),
11377 bounds.top() - text_size / 2. - px(1.),
11378 ),
11379 }
11380 };
11381 let mut name_element = div()
11382 .bg(self.color)
11383 .text_size(text_size)
11384 .px_0p5()
11385 .line_height(text_size + px(2.))
11386 .text_color(cursor_name.color)
11387 .child(cursor_name.string)
11388 .into_any_element();
11389
11390 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
11391
11392 self.cursor_name = Some(name_element);
11393 }
11394 }
11395
11396 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
11397 let bounds = self.bounds(origin);
11398
11399 //Draw background or border quad
11400 let cursor = if matches!(self.shape, CursorShape::Hollow) {
11401 outline(bounds, self.color, BorderStyle::Solid)
11402 } else {
11403 fill(bounds, self.color)
11404 };
11405
11406 if let Some(name) = &mut self.cursor_name {
11407 name.paint(window, cx);
11408 }
11409
11410 window.paint_quad(cursor);
11411
11412 if let Some(block_text) = &self.block_text {
11413 block_text
11414 .paint(self.origin + origin, self.line_height, window, cx)
11415 .log_err();
11416 }
11417 }
11418
11419 pub fn shape(&self) -> CursorShape {
11420 self.shape
11421 }
11422}
11423
11424#[derive(Debug)]
11425pub struct HighlightedRange {
11426 pub start_y: Pixels,
11427 pub line_height: Pixels,
11428 pub lines: Vec<HighlightedRangeLine>,
11429 pub color: Hsla,
11430 pub corner_radius: Pixels,
11431}
11432
11433#[derive(Debug)]
11434pub struct HighlightedRangeLine {
11435 pub start_x: Pixels,
11436 pub end_x: Pixels,
11437}
11438
11439impl HighlightedRange {
11440 pub fn paint(&self, fill: bool, bounds: Bounds<Pixels>, window: &mut Window) {
11441 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
11442 self.paint_lines(self.start_y, &self.lines[0..1], fill, bounds, window);
11443 self.paint_lines(
11444 self.start_y + self.line_height,
11445 &self.lines[1..],
11446 fill,
11447 bounds,
11448 window,
11449 );
11450 } else {
11451 self.paint_lines(self.start_y, &self.lines, fill, bounds, window);
11452 }
11453 }
11454
11455 fn paint_lines(
11456 &self,
11457 start_y: Pixels,
11458 lines: &[HighlightedRangeLine],
11459 fill: bool,
11460 _bounds: Bounds<Pixels>,
11461 window: &mut Window,
11462 ) {
11463 if lines.is_empty() {
11464 return;
11465 }
11466
11467 let first_line = lines.first().unwrap();
11468 let last_line = lines.last().unwrap();
11469
11470 let first_top_left = point(first_line.start_x, start_y);
11471 let first_top_right = point(first_line.end_x, start_y);
11472
11473 let curve_height = point(Pixels::ZERO, self.corner_radius);
11474 let curve_width = |start_x: Pixels, end_x: Pixels| {
11475 let max = (end_x - start_x) / 2.;
11476 let width = if max < self.corner_radius {
11477 max
11478 } else {
11479 self.corner_radius
11480 };
11481
11482 point(width, Pixels::ZERO)
11483 };
11484
11485 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
11486 let mut builder = if fill {
11487 gpui::PathBuilder::fill()
11488 } else {
11489 gpui::PathBuilder::stroke(px(1.))
11490 };
11491 builder.move_to(first_top_right - top_curve_width);
11492 builder.curve_to(first_top_right + curve_height, first_top_right);
11493
11494 let mut iter = lines.iter().enumerate().peekable();
11495 while let Some((ix, line)) = iter.next() {
11496 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
11497
11498 if let Some((_, next_line)) = iter.peek() {
11499 let next_top_right = point(next_line.end_x, bottom_right.y);
11500
11501 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
11502 Ordering::Equal => {
11503 builder.line_to(bottom_right);
11504 }
11505 Ordering::Less => {
11506 let curve_width = curve_width(next_top_right.x, bottom_right.x);
11507 builder.line_to(bottom_right - curve_height);
11508 if self.corner_radius > Pixels::ZERO {
11509 builder.curve_to(bottom_right - curve_width, bottom_right);
11510 }
11511 builder.line_to(next_top_right + curve_width);
11512 if self.corner_radius > Pixels::ZERO {
11513 builder.curve_to(next_top_right + curve_height, next_top_right);
11514 }
11515 }
11516 Ordering::Greater => {
11517 let curve_width = curve_width(bottom_right.x, next_top_right.x);
11518 builder.line_to(bottom_right - curve_height);
11519 if self.corner_radius > Pixels::ZERO {
11520 builder.curve_to(bottom_right + curve_width, bottom_right);
11521 }
11522 builder.line_to(next_top_right - curve_width);
11523 if self.corner_radius > Pixels::ZERO {
11524 builder.curve_to(next_top_right + curve_height, next_top_right);
11525 }
11526 }
11527 }
11528 } else {
11529 let curve_width = curve_width(line.start_x, line.end_x);
11530 builder.line_to(bottom_right - curve_height);
11531 if self.corner_radius > Pixels::ZERO {
11532 builder.curve_to(bottom_right - curve_width, bottom_right);
11533 }
11534
11535 let bottom_left = point(line.start_x, bottom_right.y);
11536 builder.line_to(bottom_left + curve_width);
11537 if self.corner_radius > Pixels::ZERO {
11538 builder.curve_to(bottom_left - curve_height, bottom_left);
11539 }
11540 }
11541 }
11542
11543 if first_line.start_x > last_line.start_x {
11544 let curve_width = curve_width(last_line.start_x, first_line.start_x);
11545 let second_top_left = point(last_line.start_x, start_y + self.line_height);
11546 builder.line_to(second_top_left + curve_height);
11547 if self.corner_radius > Pixels::ZERO {
11548 builder.curve_to(second_top_left + curve_width, second_top_left);
11549 }
11550 let first_bottom_left = point(first_line.start_x, second_top_left.y);
11551 builder.line_to(first_bottom_left - curve_width);
11552 if self.corner_radius > Pixels::ZERO {
11553 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
11554 }
11555 }
11556
11557 builder.line_to(first_top_left + curve_height);
11558 if self.corner_radius > Pixels::ZERO {
11559 builder.curve_to(first_top_left + top_curve_width, first_top_left);
11560 }
11561 builder.line_to(first_top_right - top_curve_width);
11562
11563 if let Ok(path) = builder.build() {
11564 window.paint_path(path, self.color);
11565 }
11566 }
11567}
11568
11569pub(crate) struct StickyHeader {
11570 pub item: language::OutlineItem<Anchor>,
11571 pub sticky_row: DisplayRow,
11572 pub start_point: Point,
11573 pub offset: ScrollOffset,
11574}
11575
11576enum CursorPopoverType {
11577 CodeContextMenu,
11578 EditPrediction,
11579}
11580
11581pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
11582 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
11583}
11584
11585fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
11586 (delta.pow(1.2) / 300.0).into()
11587}
11588
11589pub fn register_action<T: Action>(
11590 editor: &Entity<Editor>,
11591 window: &mut Window,
11592 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
11593) {
11594 let editor = editor.clone();
11595 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
11596 let action = action.downcast_ref().unwrap();
11597 if phase == DispatchPhase::Bubble {
11598 editor.update(cx, |editor, cx| {
11599 listener(editor, action, window, cx);
11600 })
11601 }
11602 })
11603}
11604
11605fn compute_auto_height_layout(
11606 editor: &mut Editor,
11607 min_lines: usize,
11608 max_lines: Option<usize>,
11609 known_dimensions: Size<Option<Pixels>>,
11610 available_width: AvailableSpace,
11611 window: &mut Window,
11612 cx: &mut Context<Editor>,
11613) -> Option<Size<Pixels>> {
11614 let width = known_dimensions.width.or({
11615 if let AvailableSpace::Definite(available_width) = available_width {
11616 Some(available_width)
11617 } else {
11618 None
11619 }
11620 })?;
11621 if let Some(height) = known_dimensions.height {
11622 return Some(size(width, height));
11623 }
11624
11625 let style = editor.style.as_ref().unwrap();
11626 let font_id = window.text_system().resolve_font(&style.text.font());
11627 let font_size = style.text.font_size.to_pixels(window.rem_size());
11628 let line_height = style.text.line_height_in_pixels(window.rem_size());
11629 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
11630
11631 let mut snapshot = editor.snapshot(window, cx);
11632 let gutter_dimensions = snapshot.gutter_dimensions(font_id, font_size, style, window, cx);
11633
11634 editor.gutter_dimensions = gutter_dimensions;
11635 let text_width = width - gutter_dimensions.width;
11636 let overscroll = size(em_width, px(0.));
11637
11638 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
11639 if !matches!(editor.soft_wrap_mode(cx), SoftWrap::None)
11640 && editor.set_wrap_width(Some(editor_width), cx)
11641 {
11642 snapshot = editor.snapshot(window, cx);
11643 }
11644
11645 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
11646
11647 let min_height = line_height * min_lines as f32;
11648 let content_height = scroll_height.max(min_height);
11649
11650 let final_height = if let Some(max_lines) = max_lines {
11651 let max_height = line_height * max_lines as f32;
11652 content_height.min(max_height)
11653 } else {
11654 content_height
11655 };
11656
11657 Some(size(width, final_height))
11658}
11659
11660#[cfg(test)]
11661mod tests {
11662 use super::*;
11663 use crate::{
11664 Editor, MultiBuffer, SelectionEffects,
11665 display_map::{BlockPlacement, BlockProperties},
11666 editor_tests::{init_test, update_test_language_settings},
11667 };
11668 use gpui::{TestAppContext, VisualTestContext};
11669 use language::language_settings;
11670 use log::info;
11671 use std::num::NonZeroU32;
11672 use util::test::sample_text;
11673 use vim_mode_setting::VimModeSetting;
11674
11675 #[gpui::test]
11676 async fn test_soft_wrap_editor_width_auto_height_editor(cx: &mut TestAppContext) {
11677 init_test(cx, |_| {});
11678
11679 let window = cx.add_window(|window, cx| {
11680 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
11681 let mut editor = Editor::new(
11682 EditorMode::AutoHeight {
11683 min_lines: 1,
11684 max_lines: None,
11685 },
11686 buffer,
11687 None,
11688 window,
11689 cx,
11690 );
11691 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
11692 editor
11693 });
11694 let cx = &mut VisualTestContext::from_window(*window, cx);
11695 let editor = window.root(cx).unwrap();
11696 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
11697
11698 for x in 1..=100 {
11699 let (_, state) = cx.draw(
11700 Default::default(),
11701 size(px(200. + 0.13 * x as f32), px(500.)),
11702 |_, _| EditorElement::new(&editor, style.clone()),
11703 );
11704
11705 assert!(
11706 state.position_map.scroll_max.x == 0.,
11707 "Soft wrapped editor should have no horizontal scrolling!"
11708 );
11709 }
11710 }
11711
11712 #[gpui::test]
11713 async fn test_soft_wrap_editor_width_full_editor(cx: &mut TestAppContext) {
11714 init_test(cx, |_| {});
11715
11716 let window = cx.add_window(|window, cx| {
11717 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
11718 let mut editor = Editor::new(EditorMode::full(), buffer, None, window, cx);
11719 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
11720 editor
11721 });
11722 let cx = &mut VisualTestContext::from_window(*window, cx);
11723 let editor = window.root(cx).unwrap();
11724 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
11725
11726 for x in 1..=100 {
11727 let (_, state) = cx.draw(
11728 Default::default(),
11729 size(px(200. + 0.13 * x as f32), px(500.)),
11730 |_, _| EditorElement::new(&editor, style.clone()),
11731 );
11732
11733 assert!(
11734 state.position_map.scroll_max.x == 0.,
11735 "Soft wrapped editor should have no horizontal scrolling!"
11736 );
11737 }
11738 }
11739
11740 #[gpui::test]
11741 fn test_shape_line_numbers(cx: &mut TestAppContext) {
11742 init_test(cx, |_| {});
11743 let window = cx.add_window(|window, cx| {
11744 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
11745 Editor::new(EditorMode::full(), buffer, None, window, cx)
11746 });
11747
11748 let editor = window.root(cx).unwrap();
11749 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
11750 let line_height = window
11751 .update(cx, |_, window, _| {
11752 style.text.line_height_in_pixels(window.rem_size())
11753 })
11754 .unwrap();
11755 let element = EditorElement::new(&editor, style);
11756 let snapshot = window
11757 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
11758 .unwrap();
11759
11760 let layouts = cx
11761 .update_window(*window, |_, window, cx| {
11762 element.layout_line_numbers(
11763 None,
11764 GutterDimensions {
11765 left_padding: Pixels::ZERO,
11766 right_padding: Pixels::ZERO,
11767 width: px(30.0),
11768 margin: Pixels::ZERO,
11769 git_blame_entries_width: None,
11770 },
11771 line_height,
11772 gpui::Point::default(),
11773 DisplayRow(0)..DisplayRow(6),
11774 &(0..6)
11775 .map(|row| RowInfo {
11776 buffer_row: Some(row),
11777 ..Default::default()
11778 })
11779 .collect::<Vec<_>>(),
11780 &BTreeMap::default(),
11781 Some(DisplayPoint::new(DisplayRow(0), 0)),
11782 &snapshot,
11783 window,
11784 cx,
11785 )
11786 })
11787 .unwrap();
11788 assert_eq!(layouts.len(), 6);
11789
11790 let relative_rows = window
11791 .update(cx, |editor, window, cx| {
11792 let snapshot = editor.snapshot(window, cx);
11793 element.calculate_relative_line_numbers(
11794 &snapshot,
11795 &(DisplayRow(0)..DisplayRow(6)),
11796 Some(DisplayRow(3)),
11797 false,
11798 )
11799 })
11800 .unwrap();
11801 assert_eq!(relative_rows[&DisplayRow(0)], 3);
11802 assert_eq!(relative_rows[&DisplayRow(1)], 2);
11803 assert_eq!(relative_rows[&DisplayRow(2)], 1);
11804 // current line has no relative number
11805 assert_eq!(relative_rows[&DisplayRow(4)], 1);
11806 assert_eq!(relative_rows[&DisplayRow(5)], 2);
11807
11808 // works if cursor is before screen
11809 let relative_rows = window
11810 .update(cx, |editor, window, cx| {
11811 let snapshot = editor.snapshot(window, cx);
11812 element.calculate_relative_line_numbers(
11813 &snapshot,
11814 &(DisplayRow(3)..DisplayRow(6)),
11815 Some(DisplayRow(1)),
11816 false,
11817 )
11818 })
11819 .unwrap();
11820 assert_eq!(relative_rows.len(), 3);
11821 assert_eq!(relative_rows[&DisplayRow(3)], 2);
11822 assert_eq!(relative_rows[&DisplayRow(4)], 3);
11823 assert_eq!(relative_rows[&DisplayRow(5)], 4);
11824
11825 // works if cursor is after screen
11826 let relative_rows = window
11827 .update(cx, |editor, window, cx| {
11828 let snapshot = editor.snapshot(window, cx);
11829 element.calculate_relative_line_numbers(
11830 &snapshot,
11831 &(DisplayRow(0)..DisplayRow(3)),
11832 Some(DisplayRow(6)),
11833 false,
11834 )
11835 })
11836 .unwrap();
11837 assert_eq!(relative_rows.len(), 3);
11838 assert_eq!(relative_rows[&DisplayRow(0)], 5);
11839 assert_eq!(relative_rows[&DisplayRow(1)], 4);
11840 assert_eq!(relative_rows[&DisplayRow(2)], 3);
11841
11842 const DELETED_LINE: u32 = 3;
11843 let layouts = cx
11844 .update_window(*window, |_, window, cx| {
11845 element.layout_line_numbers(
11846 None,
11847 GutterDimensions {
11848 left_padding: Pixels::ZERO,
11849 right_padding: Pixels::ZERO,
11850 width: px(30.0),
11851 margin: Pixels::ZERO,
11852 git_blame_entries_width: None,
11853 },
11854 line_height,
11855 gpui::Point::default(),
11856 DisplayRow(0)..DisplayRow(6),
11857 &(0..6)
11858 .map(|row| RowInfo {
11859 buffer_row: Some(row),
11860 diff_status: (row == DELETED_LINE).then(|| {
11861 DiffHunkStatus::deleted(
11862 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
11863 )
11864 }),
11865 ..Default::default()
11866 })
11867 .collect::<Vec<_>>(),
11868 &BTreeMap::default(),
11869 Some(DisplayPoint::new(DisplayRow(0), 0)),
11870 &snapshot,
11871 window,
11872 cx,
11873 )
11874 })
11875 .unwrap();
11876 assert_eq!(layouts.len(), 5,);
11877 assert!(
11878 layouts.get(&MultiBufferRow(DELETED_LINE)).is_none(),
11879 "Deleted line should not have a line number"
11880 );
11881 }
11882
11883 #[gpui::test]
11884 fn test_shape_line_numbers_wrapping(cx: &mut TestAppContext) {
11885 init_test(cx, |_| {});
11886 let window = cx.add_window(|window, cx| {
11887 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
11888 Editor::new(EditorMode::full(), buffer, None, window, cx)
11889 });
11890
11891 update_test_language_settings(cx, |s| {
11892 s.defaults.preferred_line_length = Some(5_u32);
11893 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
11894 });
11895
11896 let editor = window.root(cx).unwrap();
11897 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
11898 let line_height = window
11899 .update(cx, |_, window, _| {
11900 style.text.line_height_in_pixels(window.rem_size())
11901 })
11902 .unwrap();
11903 let element = EditorElement::new(&editor, style);
11904 let snapshot = window
11905 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
11906 .unwrap();
11907
11908 let layouts = cx
11909 .update_window(*window, |_, window, cx| {
11910 element.layout_line_numbers(
11911 None,
11912 GutterDimensions {
11913 left_padding: Pixels::ZERO,
11914 right_padding: Pixels::ZERO,
11915 width: px(30.0),
11916 margin: Pixels::ZERO,
11917 git_blame_entries_width: None,
11918 },
11919 line_height,
11920 gpui::Point::default(),
11921 DisplayRow(0)..DisplayRow(6),
11922 &(0..6)
11923 .map(|row| RowInfo {
11924 buffer_row: Some(row),
11925 ..Default::default()
11926 })
11927 .collect::<Vec<_>>(),
11928 &BTreeMap::default(),
11929 Some(DisplayPoint::new(DisplayRow(0), 0)),
11930 &snapshot,
11931 window,
11932 cx,
11933 )
11934 })
11935 .unwrap();
11936 assert_eq!(layouts.len(), 3);
11937
11938 let relative_rows = window
11939 .update(cx, |editor, window, cx| {
11940 let snapshot = editor.snapshot(window, cx);
11941 element.calculate_relative_line_numbers(
11942 &snapshot,
11943 &(DisplayRow(0)..DisplayRow(6)),
11944 Some(DisplayRow(3)),
11945 true,
11946 )
11947 })
11948 .unwrap();
11949
11950 assert_eq!(relative_rows[&DisplayRow(0)], 3);
11951 assert_eq!(relative_rows[&DisplayRow(1)], 2);
11952 assert_eq!(relative_rows[&DisplayRow(2)], 1);
11953 // current line has no relative number
11954 assert_eq!(relative_rows[&DisplayRow(4)], 1);
11955 assert_eq!(relative_rows[&DisplayRow(5)], 2);
11956
11957 let layouts = cx
11958 .update_window(*window, |_, window, cx| {
11959 element.layout_line_numbers(
11960 None,
11961 GutterDimensions {
11962 left_padding: Pixels::ZERO,
11963 right_padding: Pixels::ZERO,
11964 width: px(30.0),
11965 margin: Pixels::ZERO,
11966 git_blame_entries_width: None,
11967 },
11968 line_height,
11969 gpui::Point::default(),
11970 DisplayRow(0)..DisplayRow(6),
11971 &(0..6)
11972 .map(|row| RowInfo {
11973 buffer_row: Some(row),
11974 diff_status: Some(DiffHunkStatus::deleted(
11975 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
11976 )),
11977 ..Default::default()
11978 })
11979 .collect::<Vec<_>>(),
11980 &BTreeMap::from_iter([(DisplayRow(0), LineHighlightSpec::default())]),
11981 Some(DisplayPoint::new(DisplayRow(0), 0)),
11982 &snapshot,
11983 window,
11984 cx,
11985 )
11986 })
11987 .unwrap();
11988 assert!(
11989 layouts.is_empty(),
11990 "Deleted lines should have no line number"
11991 );
11992
11993 let relative_rows = window
11994 .update(cx, |editor, window, cx| {
11995 let snapshot = editor.snapshot(window, cx);
11996 element.calculate_relative_line_numbers(
11997 &snapshot,
11998 &(DisplayRow(0)..DisplayRow(6)),
11999 Some(DisplayRow(3)),
12000 true,
12001 )
12002 })
12003 .unwrap();
12004
12005 // Deleted lines should still have relative numbers
12006 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12007 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12008 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12009 // current line, even if deleted, has no relative number
12010 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12011 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12012 }
12013
12014 #[gpui::test]
12015 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
12016 init_test(cx, |_| {});
12017
12018 // Enable `vim_mode` setting so the logic that checks whether this is
12019 // enabled can work as expected.
12020 cx.update(|cx| {
12021 VimModeSetting::override_global(VimModeSetting(true), cx);
12022 });
12023
12024 let window = cx.add_window(|window, cx| {
12025 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
12026 Editor::new(EditorMode::full(), buffer, None, window, cx)
12027 });
12028 let cx = &mut VisualTestContext::from_window(*window, cx);
12029 let editor = window.root(cx).unwrap();
12030 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12031
12032 window
12033 .update(cx, |editor, window, cx| {
12034 editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
12035 s.select_ranges([
12036 Point::new(0, 0)..Point::new(1, 0),
12037 Point::new(3, 2)..Point::new(3, 3),
12038 Point::new(5, 6)..Point::new(6, 0),
12039 ]);
12040 });
12041 })
12042 .unwrap();
12043
12044 let (_, state) = cx.draw(
12045 point(px(500.), px(500.)),
12046 size(px(500.), px(500.)),
12047 |_, _| EditorElement::new(&editor, style),
12048 );
12049
12050 assert_eq!(state.selections.len(), 1);
12051 let local_selections = &state.selections[0].1;
12052 assert_eq!(local_selections.len(), 3);
12053 // moves cursor back one line
12054 assert_eq!(
12055 local_selections[0].head,
12056 DisplayPoint::new(DisplayRow(0), 6)
12057 );
12058 assert_eq!(
12059 local_selections[0].range,
12060 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
12061 );
12062
12063 // moves cursor back one column
12064 assert_eq!(
12065 local_selections[1].range,
12066 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
12067 );
12068 assert_eq!(
12069 local_selections[1].head,
12070 DisplayPoint::new(DisplayRow(3), 2)
12071 );
12072
12073 // leaves cursor on the max point
12074 assert_eq!(
12075 local_selections[2].range,
12076 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
12077 );
12078 assert_eq!(
12079 local_selections[2].head,
12080 DisplayPoint::new(DisplayRow(6), 0)
12081 );
12082
12083 // active lines does not include 1 (even though the range of the selection does)
12084 assert_eq!(
12085 state.active_rows.keys().cloned().collect::<Vec<_>>(),
12086 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
12087 );
12088 }
12089
12090 #[gpui::test]
12091 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
12092 init_test(cx, |_| {});
12093
12094 let window = cx.add_window(|window, cx| {
12095 let buffer = MultiBuffer::build_simple("", cx);
12096 Editor::new(EditorMode::full(), buffer, None, window, cx)
12097 });
12098 let cx = &mut VisualTestContext::from_window(*window, cx);
12099 let editor = window.root(cx).unwrap();
12100 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12101 window
12102 .update(cx, |editor, window, cx| {
12103 editor.set_placeholder_text("hello", window, cx);
12104 editor.insert_blocks(
12105 [BlockProperties {
12106 style: BlockStyle::Fixed,
12107 placement: BlockPlacement::Above(Anchor::min()),
12108 height: Some(3),
12109 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
12110 priority: 0,
12111 }],
12112 None,
12113 cx,
12114 );
12115
12116 // Blur the editor so that it displays placeholder text.
12117 window.blur();
12118 })
12119 .unwrap();
12120
12121 let (_, state) = cx.draw(
12122 point(px(500.), px(500.)),
12123 size(px(500.), px(500.)),
12124 |_, _| EditorElement::new(&editor, style),
12125 );
12126 assert_eq!(state.position_map.line_layouts.len(), 4);
12127 assert_eq!(state.line_numbers.len(), 1);
12128 assert_eq!(
12129 state
12130 .line_numbers
12131 .get(&MultiBufferRow(0))
12132 .map(|line_number| line_number
12133 .segments
12134 .first()
12135 .unwrap()
12136 .shaped_line
12137 .text
12138 .as_ref()),
12139 Some("1")
12140 );
12141 }
12142
12143 #[gpui::test]
12144 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
12145 const TAB_SIZE: u32 = 4;
12146
12147 let input_text = "\t \t|\t| a b";
12148 let expected_invisibles = vec![
12149 Invisible::Tab {
12150 line_start_offset: 0,
12151 line_end_offset: TAB_SIZE as usize,
12152 },
12153 Invisible::Whitespace {
12154 line_offset: TAB_SIZE as usize,
12155 },
12156 Invisible::Tab {
12157 line_start_offset: TAB_SIZE as usize + 1,
12158 line_end_offset: TAB_SIZE as usize * 2,
12159 },
12160 Invisible::Tab {
12161 line_start_offset: TAB_SIZE as usize * 2 + 1,
12162 line_end_offset: TAB_SIZE as usize * 3,
12163 },
12164 Invisible::Whitespace {
12165 line_offset: TAB_SIZE as usize * 3 + 1,
12166 },
12167 Invisible::Whitespace {
12168 line_offset: TAB_SIZE as usize * 3 + 3,
12169 },
12170 ];
12171 assert_eq!(
12172 expected_invisibles.len(),
12173 input_text
12174 .chars()
12175 .filter(|initial_char| initial_char.is_whitespace())
12176 .count(),
12177 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
12178 );
12179
12180 for show_line_numbers in [true, false] {
12181 init_test(cx, |s| {
12182 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12183 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
12184 });
12185
12186 let actual_invisibles = collect_invisibles_from_new_editor(
12187 cx,
12188 EditorMode::full(),
12189 input_text,
12190 px(500.0),
12191 show_line_numbers,
12192 );
12193
12194 assert_eq!(expected_invisibles, actual_invisibles);
12195 }
12196 }
12197
12198 #[gpui::test]
12199 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
12200 init_test(cx, |s| {
12201 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12202 s.defaults.tab_size = NonZeroU32::new(4);
12203 });
12204
12205 for editor_mode_without_invisibles in [
12206 EditorMode::SingleLine,
12207 EditorMode::AutoHeight {
12208 min_lines: 1,
12209 max_lines: Some(100),
12210 },
12211 ] {
12212 for show_line_numbers in [true, false] {
12213 let invisibles = collect_invisibles_from_new_editor(
12214 cx,
12215 editor_mode_without_invisibles.clone(),
12216 "\t\t\t| | a b",
12217 px(500.0),
12218 show_line_numbers,
12219 );
12220 assert!(
12221 invisibles.is_empty(),
12222 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
12223 );
12224 }
12225 }
12226 }
12227
12228 #[gpui::test]
12229 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
12230 let tab_size = 4;
12231 let input_text = "a\tbcd ".repeat(9);
12232 let repeated_invisibles = [
12233 Invisible::Tab {
12234 line_start_offset: 1,
12235 line_end_offset: tab_size as usize,
12236 },
12237 Invisible::Whitespace {
12238 line_offset: tab_size as usize + 3,
12239 },
12240 Invisible::Whitespace {
12241 line_offset: tab_size as usize + 4,
12242 },
12243 Invisible::Whitespace {
12244 line_offset: tab_size as usize + 5,
12245 },
12246 Invisible::Whitespace {
12247 line_offset: tab_size as usize + 6,
12248 },
12249 Invisible::Whitespace {
12250 line_offset: tab_size as usize + 7,
12251 },
12252 ];
12253 let expected_invisibles = std::iter::once(repeated_invisibles)
12254 .cycle()
12255 .take(9)
12256 .flatten()
12257 .collect::<Vec<_>>();
12258 assert_eq!(
12259 expected_invisibles.len(),
12260 input_text
12261 .chars()
12262 .filter(|initial_char| initial_char.is_whitespace())
12263 .count(),
12264 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
12265 );
12266 info!("Expected invisibles: {expected_invisibles:?}");
12267
12268 init_test(cx, |_| {});
12269
12270 // Put the same string with repeating whitespace pattern into editors of various size,
12271 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
12272 let resize_step = 10.0;
12273 let mut editor_width = 200.0;
12274 while editor_width <= 1000.0 {
12275 for show_line_numbers in [true, false] {
12276 update_test_language_settings(cx, |s| {
12277 s.defaults.tab_size = NonZeroU32::new(tab_size);
12278 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
12279 s.defaults.preferred_line_length = Some(editor_width as u32);
12280 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
12281 });
12282
12283 let actual_invisibles = collect_invisibles_from_new_editor(
12284 cx,
12285 EditorMode::full(),
12286 &input_text,
12287 px(editor_width),
12288 show_line_numbers,
12289 );
12290
12291 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
12292 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
12293 let mut i = 0;
12294 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
12295 i = actual_index;
12296 match expected_invisibles.get(i) {
12297 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
12298 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
12299 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
12300 _ => {
12301 panic!(
12302 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
12303 )
12304 }
12305 },
12306 None => {
12307 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
12308 }
12309 }
12310 }
12311 let missing_expected_invisibles = &expected_invisibles[i + 1..];
12312 assert!(
12313 missing_expected_invisibles.is_empty(),
12314 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
12315 );
12316
12317 editor_width += resize_step;
12318 }
12319 }
12320 }
12321
12322 fn collect_invisibles_from_new_editor(
12323 cx: &mut TestAppContext,
12324 editor_mode: EditorMode,
12325 input_text: &str,
12326 editor_width: Pixels,
12327 show_line_numbers: bool,
12328 ) -> Vec<Invisible> {
12329 info!(
12330 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
12331 f32::from(editor_width)
12332 );
12333 let window = cx.add_window(|window, cx| {
12334 let buffer = MultiBuffer::build_simple(input_text, cx);
12335 Editor::new(editor_mode, buffer, None, window, cx)
12336 });
12337 let cx = &mut VisualTestContext::from_window(*window, cx);
12338 let editor = window.root(cx).unwrap();
12339
12340 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12341 window
12342 .update(cx, |editor, _, cx| {
12343 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12344 editor.set_wrap_width(Some(editor_width), cx);
12345 editor.set_show_line_numbers(show_line_numbers, cx);
12346 })
12347 .unwrap();
12348 let (_, state) = cx.draw(
12349 point(px(500.), px(500.)),
12350 size(px(500.), px(500.)),
12351 |_, _| EditorElement::new(&editor, style),
12352 );
12353 state
12354 .position_map
12355 .line_layouts
12356 .iter()
12357 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
12358 .cloned()
12359 .collect()
12360 }
12361
12362 #[gpui::test]
12363 fn test_merge_overlapping_ranges() {
12364 let base_bg = Hsla::white();
12365 let color1 = Hsla {
12366 h: 0.0,
12367 s: 0.5,
12368 l: 0.5,
12369 a: 0.5,
12370 };
12371 let color2 = Hsla {
12372 h: 120.0,
12373 s: 0.5,
12374 l: 0.5,
12375 a: 0.5,
12376 };
12377
12378 let display_point = |col| DisplayPoint::new(DisplayRow(0), col);
12379 let cols = |v: &Vec<(Range<DisplayPoint>, Hsla)>| -> Vec<(u32, u32)> {
12380 v.iter()
12381 .map(|(r, _)| (r.start.column(), r.end.column()))
12382 .collect()
12383 };
12384
12385 // Test overlapping ranges blend colors
12386 let overlapping = vec![
12387 (display_point(5)..display_point(15), color1),
12388 (display_point(10)..display_point(20), color2),
12389 ];
12390 let result = EditorElement::merge_overlapping_ranges(overlapping, base_bg);
12391 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
12392
12393 // Test middle segment should have blended color
12394 let blended = Hsla::blend(Hsla::blend(base_bg, color1), color2);
12395 assert_eq!(result[1].1, blended);
12396
12397 // Test adjacent same-color ranges merge
12398 let adjacent_same = vec![
12399 (display_point(5)..display_point(10), color1),
12400 (display_point(10)..display_point(15), color1),
12401 ];
12402 let result = EditorElement::merge_overlapping_ranges(adjacent_same, base_bg);
12403 assert_eq!(cols(&result), vec![(5, 15)]);
12404
12405 // Test contained range splits
12406 let contained = vec![
12407 (display_point(5)..display_point(20), color1),
12408 (display_point(10)..display_point(15), color2),
12409 ];
12410 let result = EditorElement::merge_overlapping_ranges(contained, base_bg);
12411 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
12412
12413 // Test multiple overlaps split at every boundary
12414 let color3 = Hsla {
12415 h: 240.0,
12416 s: 0.5,
12417 l: 0.5,
12418 a: 0.5,
12419 };
12420 let complex = vec![
12421 (display_point(5)..display_point(12), color1),
12422 (display_point(8)..display_point(16), color2),
12423 (display_point(10)..display_point(14), color3),
12424 ];
12425 let result = EditorElement::merge_overlapping_ranges(complex, base_bg);
12426 assert_eq!(
12427 cols(&result),
12428 vec![(5, 8), (8, 10), (10, 12), (12, 14), (14, 16)]
12429 );
12430 }
12431
12432 #[gpui::test]
12433 fn test_bg_segments_per_row() {
12434 let base_bg = Hsla::white();
12435
12436 // Case A: selection spans three display rows: row 1 [5, end), full row 2, row 3 [0, 7)
12437 {
12438 let selection_color = Hsla {
12439 h: 200.0,
12440 s: 0.5,
12441 l: 0.5,
12442 a: 0.5,
12443 };
12444 let player_color = PlayerColor {
12445 cursor: selection_color,
12446 background: selection_color,
12447 selection: selection_color,
12448 };
12449
12450 let spanning_selection = SelectionLayout {
12451 head: DisplayPoint::new(DisplayRow(3), 7),
12452 cursor_shape: CursorShape::Bar,
12453 is_newest: true,
12454 is_local: true,
12455 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 7),
12456 active_rows: DisplayRow(1)..DisplayRow(4),
12457 user_name: None,
12458 };
12459
12460 let selections = vec![(player_color, vec![spanning_selection])];
12461 let result = EditorElement::bg_segments_per_row(
12462 DisplayRow(0)..DisplayRow(5),
12463 &selections,
12464 &[],
12465 base_bg,
12466 );
12467
12468 assert_eq!(result.len(), 5);
12469 assert!(result[0].is_empty());
12470 assert_eq!(result[1].len(), 1);
12471 assert_eq!(result[2].len(), 1);
12472 assert_eq!(result[3].len(), 1);
12473 assert!(result[4].is_empty());
12474
12475 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
12476 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
12477 assert_eq!(result[1][0].0.end.column(), u32::MAX);
12478 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
12479 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
12480 assert_eq!(result[2][0].0.end.column(), u32::MAX);
12481 assert_eq!(result[3][0].0.start, DisplayPoint::new(DisplayRow(3), 0));
12482 assert_eq!(result[3][0].0.end, DisplayPoint::new(DisplayRow(3), 7));
12483 }
12484
12485 // Case B: selection ends exactly at the start of row 3, excluding row 3
12486 {
12487 let selection_color = Hsla {
12488 h: 120.0,
12489 s: 0.5,
12490 l: 0.5,
12491 a: 0.5,
12492 };
12493 let player_color = PlayerColor {
12494 cursor: selection_color,
12495 background: selection_color,
12496 selection: selection_color,
12497 };
12498
12499 let selection = SelectionLayout {
12500 head: DisplayPoint::new(DisplayRow(2), 0),
12501 cursor_shape: CursorShape::Bar,
12502 is_newest: true,
12503 is_local: true,
12504 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 0),
12505 active_rows: DisplayRow(1)..DisplayRow(3),
12506 user_name: None,
12507 };
12508
12509 let selections = vec![(player_color, vec![selection])];
12510 let result = EditorElement::bg_segments_per_row(
12511 DisplayRow(0)..DisplayRow(4),
12512 &selections,
12513 &[],
12514 base_bg,
12515 );
12516
12517 assert_eq!(result.len(), 4);
12518 assert!(result[0].is_empty());
12519 assert_eq!(result[1].len(), 1);
12520 assert_eq!(result[2].len(), 1);
12521 assert!(result[3].is_empty());
12522
12523 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
12524 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
12525 assert_eq!(result[1][0].0.end.column(), u32::MAX);
12526 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
12527 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
12528 assert_eq!(result[2][0].0.end.column(), u32::MAX);
12529 }
12530 }
12531
12532 #[cfg(test)]
12533 fn generate_test_run(len: usize, color: Hsla) -> TextRun {
12534 TextRun {
12535 len,
12536 color,
12537 ..Default::default()
12538 }
12539 }
12540
12541 #[gpui::test]
12542 fn test_split_runs_by_bg_segments(cx: &mut gpui::TestAppContext) {
12543 init_test(cx, |_| {});
12544
12545 let dx = |start: u32, end: u32| {
12546 DisplayPoint::new(DisplayRow(0), start)..DisplayPoint::new(DisplayRow(0), end)
12547 };
12548
12549 let text_color = Hsla {
12550 h: 210.0,
12551 s: 0.1,
12552 l: 0.4,
12553 a: 1.0,
12554 };
12555 let bg_1 = Hsla {
12556 h: 30.0,
12557 s: 0.6,
12558 l: 0.8,
12559 a: 1.0,
12560 };
12561 let bg_2 = Hsla {
12562 h: 200.0,
12563 s: 0.6,
12564 l: 0.2,
12565 a: 1.0,
12566 };
12567 let min_contrast = 45.0;
12568 let adjusted_bg1 = ensure_minimum_contrast(text_color, bg_1, min_contrast);
12569 let adjusted_bg2 = ensure_minimum_contrast(text_color, bg_2, min_contrast);
12570
12571 // Case A: single run; disjoint segments inside the run
12572 {
12573 let runs = vec![generate_test_run(20, text_color)];
12574 let segs = vec![(dx(5, 10), bg_1), (dx(12, 16), bg_2)];
12575 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
12576 // Expected slices: [0,5) [5,10) [10,12) [12,16) [16,20)
12577 assert_eq!(
12578 out.iter().map(|r| r.len).collect::<Vec<_>>(),
12579 vec![5, 5, 2, 4, 4]
12580 );
12581 assert_eq!(out[0].color, text_color);
12582 assert_eq!(out[1].color, adjusted_bg1);
12583 assert_eq!(out[2].color, text_color);
12584 assert_eq!(out[3].color, adjusted_bg2);
12585 assert_eq!(out[4].color, text_color);
12586 }
12587
12588 // Case B: multiple runs; segment extends to end of line (u32::MAX)
12589 {
12590 let runs = vec![
12591 generate_test_run(8, text_color),
12592 generate_test_run(7, text_color),
12593 ];
12594 let segs = vec![(dx(6, u32::MAX), bg_1)];
12595 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
12596 // Expected slices across runs: [0,6) [6,8) | [0,7)
12597 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![6, 2, 7]);
12598 assert_eq!(out[0].color, text_color);
12599 assert_eq!(out[1].color, adjusted_bg1);
12600 assert_eq!(out[2].color, adjusted_bg1);
12601 }
12602
12603 // Case C: multi-byte characters
12604 {
12605 // for text: "Hello π δΈη!"
12606 let runs = vec![
12607 generate_test_run(5, text_color), // "Hello"
12608 generate_test_run(6, text_color), // " π "
12609 generate_test_run(6, text_color), // "δΈη"
12610 generate_test_run(1, text_color), // "!"
12611 ];
12612 // selecting "π δΈ"
12613 let segs = vec![(dx(6, 14), bg_1)];
12614 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
12615 // "Hello" | " " | "π " | "δΈ" | "η" | "!"
12616 assert_eq!(
12617 out.iter().map(|r| r.len).collect::<Vec<_>>(),
12618 vec![5, 1, 5, 3, 3, 1]
12619 );
12620 assert_eq!(out[0].color, text_color); // "Hello"
12621 assert_eq!(out[2].color, adjusted_bg1); // "π "
12622 assert_eq!(out[3].color, adjusted_bg1); // "δΈ"
12623 assert_eq!(out[4].color, text_color); // "η"
12624 assert_eq!(out[5].color, text_color); // "!"
12625 }
12626
12627 // Case D: split multiple consecutive text runs with segments
12628 {
12629 let segs = vec![
12630 (dx(2, 4), bg_1), // selecting "cd"
12631 (dx(4, 8), bg_2), // selecting "efgh"
12632 (dx(9, 11), bg_1), // selecting "jk"
12633 (dx(12, 16), bg_2), // selecting "mnop"
12634 (dx(18, 19), bg_1), // selecting "s"
12635 ];
12636
12637 // for text: "abcdef"
12638 let runs = vec![
12639 generate_test_run(2, text_color), // ab
12640 generate_test_run(4, text_color), // cdef
12641 ];
12642 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
12643 // new splits "ab", "cd", "ef"
12644 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![2, 2, 2]);
12645 assert_eq!(out[0].color, text_color);
12646 assert_eq!(out[1].color, adjusted_bg1);
12647 assert_eq!(out[2].color, adjusted_bg2);
12648
12649 // for text: "ghijklmn"
12650 let runs = vec![
12651 generate_test_run(3, text_color), // ghi
12652 generate_test_run(2, text_color), // jk
12653 generate_test_run(3, text_color), // lmn
12654 ];
12655 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 6); // 2 + 4 from first run
12656 // new splits "gh", "i", "jk", "l", "mn"
12657 assert_eq!(
12658 out.iter().map(|r| r.len).collect::<Vec<_>>(),
12659 vec![2, 1, 2, 1, 2]
12660 );
12661 assert_eq!(out[0].color, adjusted_bg2);
12662 assert_eq!(out[1].color, text_color);
12663 assert_eq!(out[2].color, adjusted_bg1);
12664 assert_eq!(out[3].color, text_color);
12665 assert_eq!(out[4].color, adjusted_bg2);
12666
12667 // for text: "opqrs"
12668 let runs = vec![
12669 generate_test_run(1, text_color), // o
12670 generate_test_run(4, text_color), // pqrs
12671 ];
12672 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 14); // 6 + 3 + 2 + 3 from first two runs
12673 // new splits "o", "p", "qr", "s"
12674 assert_eq!(
12675 out.iter().map(|r| r.len).collect::<Vec<_>>(),
12676 vec![1, 1, 2, 1]
12677 );
12678 assert_eq!(out[0].color, adjusted_bg2);
12679 assert_eq!(out[1].color, adjusted_bg2);
12680 assert_eq!(out[2].color, text_color);
12681 assert_eq!(out[3].color, adjusted_bg1);
12682 }
12683 }
12684}