1use crate::{
2 ActiveDiagnostic, BUFFER_HEADER_PADDING, BlockId, CURSORS_VISIBLE_FOR, ChunkRendererContext,
3 ChunkReplacement, CodeActionSource, ColumnarMode, ConflictsOurs, ConflictsOursMarker,
4 ConflictsOuter, ConflictsTheirs, ConflictsTheirsMarker, ContextMenuPlacement, CursorShape,
5 CustomBlockId, DisplayDiffHunk, DisplayPoint, DisplayRow, EditDisplayMode, EditPrediction,
6 Editor, EditorMode, EditorSettings, EditorSnapshot, EditorStyle, FILE_HEADER_HEIGHT,
7 FocusedBlock, GutterDimensions, HalfPageDown, HalfPageUp, HandleInput, HoveredCursor,
8 InlayHintRefreshReason, JumpData, LineDown, LineHighlight, LineUp, MAX_LINE_LEN,
9 MINIMAP_FONT_SIZE, MULTI_BUFFER_EXCERPT_HEADER_HEIGHT, OpenExcerpts, PageDown, PageUp,
10 PhantomBreakpointIndicator, PhantomDiffReviewIndicator, Point, RowExt, RowRangeExt,
11 SelectPhase, Selection, SelectionDragState, SelectionEffects, SizingBehavior, SoftWrap,
12 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 mouse_context_menu::{self, MenuPosition},
31 scroll::{
32 ActiveScrollbarState, Autoscroll, ScrollOffset, ScrollPixelOffset, ScrollbarThumbState,
33 scroll_amount::ScrollAmount,
34 },
35};
36use buffer_diff::{DiffHunkStatus, DiffHunkStatusKind};
37use collections::{BTreeMap, HashMap};
38use feature_flags::{DiffReviewFeatureFlag, FeatureFlagAppExt as _};
39use file_icons::FileIcons;
40use git::{Oid, blame::BlameEntry, commit::ParsedCommitMessage, status::FileStatus};
41use gpui::{
42 Action, Along, AnyElement, App, AppContext, AvailableSpace, Axis as ScrollbarAxis, BorderStyle,
43 Bounds, ClickEvent, ClipboardItem, ContentMask, Context, Corner, Corners, CursorStyle,
44 DispatchPhase, Edges, Element, ElementInputHandler, Entity, Focusable as _, Font, FontId,
45 FontWeight, GlobalElementId, Hitbox, HitboxBehavior, Hsla, InteractiveElement, IntoElement,
46 IsZero, Length, Modifiers, ModifiersChangedEvent, MouseButton, MouseClickEvent, MouseDownEvent,
47 MouseMoveEvent, MousePressureEvent, MouseUpEvent, PaintQuad, ParentElement, Pixels,
48 PressureStage, ScrollDelta, ScrollHandle, ScrollWheelEvent, ShapedLine, SharedString, Size,
49 StatefulInteractiveElement, Style, Styled, StyledText, TextAlign, TextRun, TextStyleRefinement,
50 WeakEntity, Window, anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline,
51 pattern_slash, point, px, quad, relative, size, solid_background, transparent_black,
52};
53use itertools::Itertools;
54use language::{HighlightedText, IndentGuideSettings, language_settings::ShowWhitespaceSetting};
55use markdown::Markdown;
56use multi_buffer::{
57 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, ExpandInfo, MultiBufferPoint,
58 MultiBufferRow, RowInfo,
59};
60
61use project::{
62 DisableAiSettings, Entry, ProjectPath,
63 debugger::breakpoint_store::{Breakpoint, BreakpointSessionState},
64 project_settings::ProjectSettings,
65};
66use settings::{
67 GitGutterSetting, GitHunkStyleSetting, IndentGuideBackgroundColoring, IndentGuideColoring,
68 RelativeLineNumbers, Settings,
69};
70use smallvec::{SmallVec, smallvec};
71use std::{
72 any::TypeId,
73 borrow::Cow,
74 cell::Cell,
75 cmp::{self, Ordering},
76 fmt::{self, Write},
77 iter, mem,
78 ops::{Deref, Range},
79 path::{self, Path},
80 rc::Rc,
81 sync::Arc,
82 time::{Duration, Instant},
83};
84use sum_tree::Bias;
85use text::{BufferId, SelectionGoal};
86use theme::{ActiveTheme, Appearance, BufferLineHeight, PlayerColor};
87use ui::utils::ensure_minimum_contrast;
88use ui::{
89 ButtonLike, ContextMenu, Indicator, KeyBinding, POPOVER_Y_PADDING, Tooltip, prelude::*,
90 right_click_menu, scrollbars::ShowScrollbar, text_for_keystroke,
91};
92use unicode_segmentation::UnicodeSegmentation;
93use util::post_inc;
94use util::{RangeExt, ResultExt, debug_panic};
95use workspace::{
96 CollaboratorId, ItemHandle, ItemSettings, OpenInTerminal, OpenTerminal, RevealInProjectPanel,
97 Workspace,
98 item::{Item, ItemBufferKind},
99};
100
101/// Determines what kinds of highlights should be applied to a lines background.
102#[derive(Clone, Copy, Default)]
103struct LineHighlightSpec {
104 selection: bool,
105 breakpoint: bool,
106 _active_stack_frame: bool,
107}
108
109#[derive(Debug)]
110struct SelectionLayout {
111 head: DisplayPoint,
112 cursor_shape: CursorShape,
113 is_newest: bool,
114 is_local: bool,
115 range: Range<DisplayPoint>,
116 active_rows: Range<DisplayRow>,
117 user_name: Option<SharedString>,
118}
119
120struct InlineBlameLayout {
121 element: AnyElement,
122 bounds: Bounds<Pixels>,
123 buffer_id: BufferId,
124 entry: BlameEntry,
125}
126
127impl SelectionLayout {
128 fn new<T: ToPoint + ToDisplayPoint + Clone>(
129 selection: Selection<T>,
130 line_mode: bool,
131 cursor_offset: bool,
132 cursor_shape: CursorShape,
133 map: &DisplaySnapshot,
134 is_newest: bool,
135 is_local: bool,
136 user_name: Option<SharedString>,
137 ) -> Self {
138 let point_selection = selection.map(|p| p.to_point(map.buffer_snapshot()));
139 let display_selection = point_selection.map(|p| p.to_display_point(map));
140 let mut range = display_selection.range();
141 let mut head = display_selection.head();
142 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
143 ..map.next_line_boundary(point_selection.end).1.row();
144
145 // vim visual line mode
146 if line_mode {
147 let point_range = map.expand_to_line(point_selection.range());
148 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
149 }
150
151 // any vim visual mode (including line mode)
152 if cursor_offset && !range.is_empty() && !selection.reversed {
153 if head.column() > 0 {
154 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left);
155 } else if head.row().0 > 0 && head != map.max_point() {
156 head = map.clip_point(
157 DisplayPoint::new(
158 head.row().previous_row(),
159 map.line_len(head.row().previous_row()),
160 ),
161 Bias::Left,
162 );
163 // updating range.end is a no-op unless you're cursor is
164 // on the newline containing a multi-buffer divider
165 // in which case the clip_point may have moved the head up
166 // an additional row.
167 range.end = DisplayPoint::new(head.row().next_row(), 0);
168 active_rows.end = head.row();
169 }
170 }
171
172 Self {
173 head,
174 cursor_shape,
175 is_newest,
176 is_local,
177 range,
178 active_rows,
179 user_name,
180 }
181 }
182}
183
184#[derive(Default)]
185struct RenderBlocksOutput {
186 // We store spacer blocks separately because they paint in a different order
187 // (spacers -> indent guides -> non-spacers)
188 non_spacer_blocks: Vec<BlockLayout>,
189 spacer_blocks: Vec<BlockLayout>,
190 row_block_types: HashMap<DisplayRow, bool>,
191 resized_blocks: Option<HashMap<CustomBlockId, u32>>,
192}
193
194pub struct EditorElement {
195 editor: Entity<Editor>,
196 style: EditorStyle,
197 split_side: Option<SplitSide>,
198}
199
200#[derive(Debug, Clone, Copy, PartialEq, Eq)]
201pub enum SplitSide {
202 Left,
203 Right,
204}
205
206impl EditorElement {
207 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
208
209 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
210 Self {
211 editor: editor.clone(),
212 style,
213 split_side: None,
214 }
215 }
216
217 pub fn set_split_side(&mut self, side: SplitSide) {
218 self.split_side = Some(side);
219 }
220
221 fn should_show_buffer_headers(&self) -> bool {
222 self.split_side.is_none()
223 }
224
225 fn register_actions(&self, window: &mut Window, cx: &mut App) {
226 let editor = &self.editor;
227 editor.update(cx, |editor, cx| {
228 for action in editor.editor_actions.borrow().values() {
229 (action)(editor, window, cx)
230 }
231 });
232
233 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
234 crate::clangd_ext::apply_related_actions(editor, window, cx);
235
236 register_action(editor, window, Editor::open_context_menu);
237 register_action(editor, window, Editor::move_left);
238 register_action(editor, window, Editor::move_right);
239 register_action(editor, window, Editor::move_down);
240 register_action(editor, window, Editor::move_down_by_lines);
241 register_action(editor, window, Editor::select_down_by_lines);
242 register_action(editor, window, Editor::move_up);
243 register_action(editor, window, Editor::move_up_by_lines);
244 register_action(editor, window, Editor::select_up_by_lines);
245 register_action(editor, window, Editor::select_page_down);
246 register_action(editor, window, Editor::select_page_up);
247 register_action(editor, window, Editor::cancel);
248 register_action(editor, window, Editor::newline);
249 register_action(editor, window, Editor::newline_above);
250 register_action(editor, window, Editor::newline_below);
251 register_action(editor, window, Editor::backspace);
252 register_action(editor, window, Editor::blame_hover);
253 register_action(editor, window, Editor::delete);
254 register_action(editor, window, Editor::tab);
255 register_action(editor, window, Editor::next_snippet_tabstop);
256 register_action(editor, window, Editor::previous_snippet_tabstop);
257 register_action(editor, window, Editor::backtab);
258 register_action(editor, window, Editor::indent);
259 register_action(editor, window, Editor::outdent);
260 register_action(editor, window, Editor::autoindent);
261 register_action(editor, window, Editor::delete_line);
262 register_action(editor, window, Editor::join_lines);
263 register_action(editor, window, Editor::sort_lines_by_length);
264 register_action(editor, window, Editor::sort_lines_case_sensitive);
265 register_action(editor, window, Editor::sort_lines_case_insensitive);
266 register_action(editor, window, Editor::reverse_lines);
267 register_action(editor, window, Editor::shuffle_lines);
268 register_action(editor, window, Editor::rotate_selections_forward);
269 register_action(editor, window, Editor::rotate_selections_backward);
270 register_action(editor, window, Editor::convert_indentation_to_spaces);
271 register_action(editor, window, Editor::convert_indentation_to_tabs);
272 register_action(editor, window, Editor::convert_to_upper_case);
273 register_action(editor, window, Editor::convert_to_lower_case);
274 register_action(editor, window, Editor::convert_to_title_case);
275 register_action(editor, window, Editor::convert_to_snake_case);
276 register_action(editor, window, Editor::convert_to_kebab_case);
277 register_action(editor, window, Editor::convert_to_upper_camel_case);
278 register_action(editor, window, Editor::convert_to_lower_camel_case);
279 register_action(editor, window, Editor::convert_to_opposite_case);
280 register_action(editor, window, Editor::convert_to_sentence_case);
281 register_action(editor, window, Editor::toggle_case);
282 register_action(editor, window, Editor::convert_to_rot13);
283 register_action(editor, window, Editor::convert_to_rot47);
284 register_action(editor, window, Editor::delete_to_previous_word_start);
285 register_action(editor, window, Editor::delete_to_previous_subword_start);
286 register_action(editor, window, Editor::delete_to_next_word_end);
287 register_action(editor, window, Editor::delete_to_next_subword_end);
288 register_action(editor, window, Editor::delete_to_beginning_of_line);
289 register_action(editor, window, Editor::delete_to_end_of_line);
290 register_action(editor, window, Editor::cut_to_end_of_line);
291 register_action(editor, window, Editor::duplicate_line_up);
292 register_action(editor, window, Editor::duplicate_line_down);
293 register_action(editor, window, Editor::duplicate_selection);
294 register_action(editor, window, Editor::move_line_up);
295 register_action(editor, window, Editor::move_line_down);
296 register_action(editor, window, Editor::transpose);
297 register_action(editor, window, Editor::rewrap);
298 register_action(editor, window, Editor::cut);
299 register_action(editor, window, Editor::kill_ring_cut);
300 register_action(editor, window, Editor::kill_ring_yank);
301 register_action(editor, window, Editor::copy);
302 register_action(editor, window, Editor::copy_and_trim);
303 register_action(editor, window, Editor::diff_clipboard_with_selection);
304 register_action(editor, window, Editor::paste);
305 register_action(editor, window, Editor::undo);
306 register_action(editor, window, Editor::redo);
307 register_action(editor, window, Editor::move_page_up);
308 register_action(editor, window, Editor::move_page_down);
309 register_action(editor, window, Editor::next_screen);
310 register_action(editor, window, Editor::scroll_cursor_top);
311 register_action(editor, window, Editor::scroll_cursor_center);
312 register_action(editor, window, Editor::scroll_cursor_bottom);
313 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
314 register_action(editor, window, |editor, _: &LineDown, window, cx| {
315 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
316 });
317 register_action(editor, window, |editor, _: &LineUp, window, cx| {
318 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
319 });
320 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
321 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
322 });
323 register_action(
324 editor,
325 window,
326 |editor, HandleInput(text): &HandleInput, window, cx| {
327 if text.is_empty() {
328 return;
329 }
330 editor.handle_input(text, window, cx);
331 },
332 );
333 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
334 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
335 });
336 register_action(editor, window, |editor, _: &PageDown, window, cx| {
337 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
338 });
339 register_action(editor, window, |editor, _: &PageUp, window, cx| {
340 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
341 });
342 register_action(editor, window, Editor::move_to_previous_word_start);
343 register_action(editor, window, Editor::move_to_previous_subword_start);
344 register_action(editor, window, Editor::move_to_next_word_end);
345 register_action(editor, window, Editor::move_to_next_subword_end);
346 register_action(editor, window, Editor::move_to_beginning_of_line);
347 register_action(editor, window, Editor::move_to_end_of_line);
348 register_action(editor, window, Editor::move_to_start_of_paragraph);
349 register_action(editor, window, Editor::move_to_end_of_paragraph);
350 register_action(editor, window, Editor::move_to_beginning);
351 register_action(editor, window, Editor::move_to_end);
352 register_action(editor, window, Editor::move_to_start_of_excerpt);
353 register_action(editor, window, Editor::move_to_start_of_next_excerpt);
354 register_action(editor, window, Editor::move_to_end_of_excerpt);
355 register_action(editor, window, Editor::move_to_end_of_previous_excerpt);
356 register_action(editor, window, Editor::select_up);
357 register_action(editor, window, Editor::select_down);
358 register_action(editor, window, Editor::select_left);
359 register_action(editor, window, Editor::select_right);
360 register_action(editor, window, Editor::select_to_previous_word_start);
361 register_action(editor, window, Editor::select_to_previous_subword_start);
362 register_action(editor, window, Editor::select_to_next_word_end);
363 register_action(editor, window, Editor::select_to_next_subword_end);
364 register_action(editor, window, Editor::select_to_beginning_of_line);
365 register_action(editor, window, Editor::select_to_end_of_line);
366 register_action(editor, window, Editor::select_to_start_of_paragraph);
367 register_action(editor, window, Editor::select_to_end_of_paragraph);
368 register_action(editor, window, Editor::select_to_start_of_excerpt);
369 register_action(editor, window, Editor::select_to_start_of_next_excerpt);
370 register_action(editor, window, Editor::select_to_end_of_excerpt);
371 register_action(editor, window, Editor::select_to_end_of_previous_excerpt);
372 register_action(editor, window, Editor::select_to_beginning);
373 register_action(editor, window, Editor::select_to_end);
374 register_action(editor, window, Editor::select_all);
375 register_action(editor, window, |editor, action, window, cx| {
376 editor.select_all_matches(action, window, cx).log_err();
377 });
378 register_action(editor, window, Editor::select_line);
379 register_action(editor, window, Editor::split_selection_into_lines);
380 register_action(editor, window, Editor::add_selection_above);
381 register_action(editor, window, Editor::add_selection_below);
382 register_action(editor, window, Editor::insert_snippet_at_selections);
383 register_action(editor, window, |editor, action, window, cx| {
384 editor.select_next(action, window, cx).log_err();
385 });
386 register_action(editor, window, |editor, action, window, cx| {
387 editor.select_previous(action, window, cx).log_err();
388 });
389 register_action(editor, window, |editor, action, window, cx| {
390 editor.find_next_match(action, window, cx).log_err();
391 });
392 register_action(editor, window, |editor, action, window, cx| {
393 editor.find_previous_match(action, window, cx).log_err();
394 });
395 register_action(editor, window, Editor::toggle_comments);
396 register_action(editor, window, Editor::select_larger_syntax_node);
397 register_action(editor, window, Editor::select_smaller_syntax_node);
398 register_action(editor, window, Editor::select_next_syntax_node);
399 register_action(editor, window, Editor::select_prev_syntax_node);
400 register_action(
401 editor,
402 window,
403 Editor::select_to_start_of_larger_syntax_node,
404 );
405 register_action(editor, window, Editor::select_to_end_of_larger_syntax_node);
406 register_action(editor, window, Editor::unwrap_syntax_node);
407 register_action(editor, window, Editor::move_to_start_of_larger_syntax_node);
408 register_action(editor, window, Editor::move_to_end_of_larger_syntax_node);
409 register_action(editor, window, Editor::select_enclosing_symbol);
410 register_action(editor, window, Editor::move_to_enclosing_bracket);
411 register_action(editor, window, Editor::undo_selection);
412 register_action(editor, window, Editor::redo_selection);
413 if editor.read(cx).buffer_kind(cx) == ItemBufferKind::Multibuffer {
414 register_action(editor, window, Editor::expand_excerpts);
415 register_action(editor, window, Editor::expand_excerpts_up);
416 register_action(editor, window, Editor::expand_excerpts_down);
417 }
418 register_action(editor, window, Editor::go_to_diagnostic);
419 register_action(editor, window, Editor::go_to_prev_diagnostic);
420 register_action(editor, window, Editor::go_to_next_hunk);
421 register_action(editor, window, Editor::go_to_prev_hunk);
422 register_action(editor, window, Editor::go_to_next_document_highlight);
423 register_action(editor, window, Editor::go_to_prev_document_highlight);
424 register_action(editor, window, |editor, action, window, cx| {
425 editor
426 .go_to_definition(action, window, cx)
427 .detach_and_log_err(cx);
428 });
429 register_action(editor, window, |editor, action, window, cx| {
430 editor
431 .go_to_definition_split(action, window, cx)
432 .detach_and_log_err(cx);
433 });
434 register_action(editor, window, |editor, action, window, cx| {
435 editor
436 .go_to_declaration(action, window, cx)
437 .detach_and_log_err(cx);
438 });
439 register_action(editor, window, |editor, action, window, cx| {
440 editor
441 .go_to_declaration_split(action, window, cx)
442 .detach_and_log_err(cx);
443 });
444 register_action(editor, window, |editor, action, window, cx| {
445 editor
446 .go_to_implementation(action, window, cx)
447 .detach_and_log_err(cx);
448 });
449 register_action(editor, window, |editor, action, window, cx| {
450 editor
451 .go_to_implementation_split(action, window, cx)
452 .detach_and_log_err(cx);
453 });
454 register_action(editor, window, |editor, action, window, cx| {
455 editor
456 .go_to_type_definition(action, window, cx)
457 .detach_and_log_err(cx);
458 });
459 register_action(editor, window, |editor, action, window, cx| {
460 editor
461 .go_to_type_definition_split(action, window, cx)
462 .detach_and_log_err(cx);
463 });
464 register_action(editor, window, Editor::open_url);
465 register_action(editor, window, Editor::open_selected_filename);
466 register_action(editor, window, Editor::fold);
467 register_action(editor, window, Editor::fold_at_level);
468 register_action(editor, window, Editor::fold_at_level_1);
469 register_action(editor, window, Editor::fold_at_level_2);
470 register_action(editor, window, Editor::fold_at_level_3);
471 register_action(editor, window, Editor::fold_at_level_4);
472 register_action(editor, window, Editor::fold_at_level_5);
473 register_action(editor, window, Editor::fold_at_level_6);
474 register_action(editor, window, Editor::fold_at_level_7);
475 register_action(editor, window, Editor::fold_at_level_8);
476 register_action(editor, window, Editor::fold_at_level_9);
477 register_action(editor, window, Editor::fold_all);
478 register_action(editor, window, Editor::fold_function_bodies);
479 register_action(editor, window, Editor::fold_recursive);
480 register_action(editor, window, Editor::toggle_fold);
481 register_action(editor, window, Editor::toggle_fold_recursive);
482 register_action(editor, window, Editor::toggle_fold_all);
483 register_action(editor, window, Editor::unfold_lines);
484 register_action(editor, window, Editor::unfold_recursive);
485 register_action(editor, window, Editor::unfold_all);
486 register_action(editor, window, Editor::fold_selected_ranges);
487 register_action(editor, window, Editor::set_mark);
488 register_action(editor, window, Editor::swap_selection_ends);
489 register_action(editor, window, Editor::show_completions);
490 register_action(editor, window, Editor::show_word_completions);
491 register_action(editor, window, Editor::toggle_code_actions);
492 register_action(editor, window, Editor::open_excerpts);
493 register_action(editor, window, Editor::open_excerpts_in_split);
494 register_action(editor, window, Editor::toggle_soft_wrap);
495 register_action(editor, window, Editor::toggle_tab_bar);
496 register_action(editor, window, Editor::toggle_line_numbers);
497 register_action(editor, window, Editor::toggle_relative_line_numbers);
498 register_action(editor, window, Editor::toggle_indent_guides);
499 register_action(editor, window, Editor::toggle_inlay_hints);
500 register_action(editor, window, Editor::toggle_semantic_highlights);
501 register_action(editor, window, Editor::toggle_edit_predictions);
502 if editor.read(cx).diagnostics_enabled() {
503 register_action(editor, window, Editor::toggle_diagnostics);
504 }
505 if editor.read(cx).inline_diagnostics_enabled() {
506 register_action(editor, window, Editor::toggle_inline_diagnostics);
507 }
508 if editor.read(cx).supports_minimap(cx) {
509 register_action(editor, window, Editor::toggle_minimap);
510 }
511 register_action(editor, window, hover_popover::hover);
512 register_action(editor, window, Editor::reveal_in_finder);
513 register_action(editor, window, Editor::copy_path);
514 register_action(editor, window, Editor::copy_relative_path);
515 register_action(editor, window, Editor::copy_file_name);
516 register_action(editor, window, Editor::copy_file_name_without_extension);
517 register_action(editor, window, Editor::copy_highlight_json);
518 register_action(editor, window, Editor::copy_permalink_to_line);
519 register_action(editor, window, Editor::open_permalink_to_line);
520 register_action(editor, window, Editor::copy_file_location);
521 register_action(editor, window, Editor::toggle_git_blame);
522 register_action(editor, window, Editor::toggle_git_blame_inline);
523 register_action(editor, window, Editor::open_git_blame_commit);
524 register_action(editor, window, Editor::toggle_selected_diff_hunks);
525 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
526 register_action(editor, window, Editor::stage_and_next);
527 register_action(editor, window, Editor::unstage_and_next);
528 register_action(editor, window, Editor::expand_all_diff_hunks);
529 register_action(editor, window, Editor::collapse_all_diff_hunks);
530 register_action(editor, window, Editor::toggle_review_comments_expanded);
531 register_action(editor, window, Editor::submit_diff_review_comment_action);
532 register_action(editor, window, Editor::edit_review_comment);
533 register_action(editor, window, Editor::delete_review_comment);
534 register_action(editor, window, Editor::confirm_edit_review_comment_action);
535 register_action(editor, window, Editor::cancel_edit_review_comment_action);
536 register_action(editor, window, Editor::go_to_previous_change);
537 register_action(editor, window, Editor::go_to_next_change);
538 register_action(editor, window, Editor::go_to_prev_reference);
539 register_action(editor, window, Editor::go_to_next_reference);
540 register_action(editor, window, Editor::go_to_previous_symbol);
541 register_action(editor, window, Editor::go_to_next_symbol);
542
543 register_action(editor, window, |editor, action, window, cx| {
544 if let Some(task) = editor.format(action, window, cx) {
545 editor.detach_and_notify_err(task, window, cx);
546 } else {
547 cx.propagate();
548 }
549 });
550 register_action(editor, window, |editor, action, window, cx| {
551 if let Some(task) = editor.format_selections(action, window, cx) {
552 editor.detach_and_notify_err(task, window, cx);
553 } else {
554 cx.propagate();
555 }
556 });
557 register_action(editor, window, |editor, action, window, cx| {
558 if let Some(task) = editor.organize_imports(action, window, cx) {
559 editor.detach_and_notify_err(task, window, cx);
560 } else {
561 cx.propagate();
562 }
563 });
564 register_action(editor, window, Editor::restart_language_server);
565 register_action(editor, window, Editor::stop_language_server);
566 register_action(editor, window, Editor::show_character_palette);
567 register_action(editor, window, |editor, action, window, cx| {
568 if let Some(task) = editor.confirm_completion(action, window, cx) {
569 editor.detach_and_notify_err(task, window, cx);
570 } else {
571 cx.propagate();
572 }
573 });
574 register_action(editor, window, |editor, action, window, cx| {
575 if let Some(task) = editor.confirm_completion_replace(action, window, cx) {
576 editor.detach_and_notify_err(task, 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_completion_insert(action, window, cx) {
583 editor.detach_and_notify_err(task, window, cx);
584 } else {
585 cx.propagate();
586 }
587 });
588 register_action(editor, window, |editor, action, window, cx| {
589 if let Some(task) = editor.compose_completion(action, window, cx) {
590 editor.detach_and_notify_err(task, window, cx);
591 } else {
592 cx.propagate();
593 }
594 });
595 register_action(editor, window, |editor, action, window, cx| {
596 if let Some(task) = editor.confirm_code_action(action, window, cx) {
597 editor.detach_and_notify_err(task, window, cx);
598 } else {
599 cx.propagate();
600 }
601 });
602 register_action(editor, window, |editor, action, window, cx| {
603 if let Some(task) = editor.rename(action, window, cx) {
604 editor.detach_and_notify_err(task, window, cx);
605 } else {
606 cx.propagate();
607 }
608 });
609 register_action(editor, window, |editor, action, window, cx| {
610 if let Some(task) = editor.confirm_rename(action, window, cx) {
611 editor.detach_and_notify_err(task, window, cx);
612 } else {
613 cx.propagate();
614 }
615 });
616 register_action(editor, window, |editor, action, window, cx| {
617 if let Some(task) = editor.find_all_references(action, window, cx) {
618 task.detach_and_log_err(cx);
619 } else {
620 cx.propagate();
621 }
622 });
623 register_action(editor, window, Editor::show_signature_help);
624 register_action(editor, window, Editor::signature_help_prev);
625 register_action(editor, window, Editor::signature_help_next);
626 register_action(editor, window, Editor::show_edit_prediction);
627 register_action(editor, window, Editor::context_menu_first);
628 register_action(editor, window, Editor::context_menu_prev);
629 register_action(editor, window, Editor::context_menu_next);
630 register_action(editor, window, Editor::context_menu_last);
631 register_action(editor, window, Editor::display_cursor_names);
632 register_action(editor, window, Editor::unique_lines_case_insensitive);
633 register_action(editor, window, Editor::unique_lines_case_sensitive);
634 register_action(editor, window, Editor::accept_next_word_edit_prediction);
635 register_action(editor, window, Editor::accept_next_line_edit_prediction);
636 register_action(editor, window, Editor::accept_edit_prediction);
637 register_action(editor, window, Editor::restore_file);
638 register_action(editor, window, Editor::git_restore);
639 register_action(editor, window, Editor::restore_and_next);
640 register_action(editor, window, Editor::apply_all_diff_hunks);
641 register_action(editor, window, Editor::apply_selected_diff_hunks);
642 register_action(editor, window, Editor::open_active_item_in_terminal);
643 register_action(editor, window, Editor::reload_file);
644 register_action(editor, window, Editor::spawn_nearest_task);
645 register_action(editor, window, Editor::insert_uuid_v4);
646 register_action(editor, window, Editor::insert_uuid_v7);
647 register_action(editor, window, Editor::open_selections_in_multibuffer);
648 register_action(editor, window, Editor::toggle_breakpoint);
649 register_action(editor, window, Editor::edit_log_breakpoint);
650 register_action(editor, window, Editor::enable_breakpoint);
651 register_action(editor, window, Editor::disable_breakpoint);
652 register_action(editor, window, Editor::toggle_read_only);
653 register_action(editor, window, Editor::align_selections);
654 if editor.read(cx).enable_wrap_selections_in_tag(cx) {
655 register_action(editor, window, Editor::wrap_selections_in_tag);
656 }
657 }
658
659 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
660 let position_map = layout.position_map.clone();
661 window.on_key_event({
662 let editor = self.editor.clone();
663 move |event: &ModifiersChangedEvent, phase, window, cx| {
664 if phase != DispatchPhase::Bubble {
665 return;
666 }
667 editor.update(cx, |editor, cx| {
668 let inlay_hint_settings = inlay_hint_settings(
669 editor.selections.newest_anchor().head(),
670 &editor.buffer.read(cx).snapshot(cx),
671 cx,
672 );
673
674 if let Some(inlay_modifiers) = inlay_hint_settings
675 .toggle_on_modifiers_press
676 .as_ref()
677 .filter(|modifiers| modifiers.modified())
678 {
679 editor.refresh_inlay_hints(
680 InlayHintRefreshReason::ModifiersChanged(
681 inlay_modifiers == &event.modifiers,
682 ),
683 cx,
684 );
685 }
686
687 if editor.hover_state.focused(window, cx) {
688 return;
689 }
690
691 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
692 })
693 }
694 });
695 }
696
697 fn mouse_left_down(
698 editor: &mut Editor,
699 event: &MouseDownEvent,
700 position_map: &PositionMap,
701 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
702 window: &mut Window,
703 cx: &mut Context<Editor>,
704 ) {
705 if window.default_prevented() {
706 return;
707 }
708
709 let text_hitbox = &position_map.text_hitbox;
710 let gutter_hitbox = &position_map.gutter_hitbox;
711 let point_for_position = position_map.point_for_position(event.position);
712 let mut click_count = event.click_count;
713 let mut modifiers = event.modifiers;
714
715 if let Some(hovered_hunk) =
716 position_map
717 .display_hunks
718 .iter()
719 .find_map(|(hunk, hunk_hitbox)| match hunk {
720 DisplayDiffHunk::Folded { .. } => None,
721 DisplayDiffHunk::Unfolded {
722 multi_buffer_range, ..
723 } => hunk_hitbox
724 .as_ref()
725 .is_some_and(|hitbox| hitbox.is_hovered(window))
726 .then(|| multi_buffer_range.clone()),
727 })
728 {
729 editor.toggle_single_diff_hunk(hovered_hunk, cx);
730 cx.notify();
731 return;
732 } else if gutter_hitbox.is_hovered(window) {
733 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
734 } else if !text_hitbox.is_hovered(window) {
735 return;
736 }
737
738 if EditorSettings::get_global(cx)
739 .drag_and_drop_selection
740 .enabled
741 && click_count == 1
742 && !modifiers.shift
743 {
744 let newest_anchor = editor.selections.newest_anchor();
745 let snapshot = editor.snapshot(window, cx);
746 let selection = newest_anchor.map(|anchor| anchor.to_display_point(&snapshot));
747 if point_for_position.intersects_selection(&selection) {
748 editor.selection_drag_state = SelectionDragState::ReadyToDrag {
749 selection: newest_anchor.clone(),
750 click_position: event.position,
751 mouse_down_time: Instant::now(),
752 };
753 cx.stop_propagation();
754 return;
755 }
756 }
757
758 let is_singleton = editor.buffer().read(cx).is_singleton();
759
760 if click_count == 2 && !is_singleton {
761 match EditorSettings::get_global(cx).double_click_in_multibuffer {
762 DoubleClickInMultibuffer::Select => {
763 // do nothing special on double click, all selection logic is below
764 }
765 DoubleClickInMultibuffer::Open => {
766 if modifiers.alt {
767 // if double click is made with alt, pretend it's a regular double click without opening and alt,
768 // and run the selection logic.
769 modifiers.alt = false;
770 } else {
771 let scroll_position_row = position_map.scroll_position.y;
772 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
773 / position_map.line_height)
774 as f64
775 + position_map.scroll_position.y)
776 as u32;
777 let multi_buffer_row = position_map
778 .snapshot
779 .display_point_to_point(
780 DisplayPoint::new(DisplayRow(display_row), 0),
781 Bias::Right,
782 )
783 .row;
784 let line_offset_from_top = display_row - scroll_position_row as u32;
785 // if double click is made without alt, open the corresponding excerp
786 editor.open_excerpts_common(
787 Some(JumpData::MultiBufferRow {
788 row: MultiBufferRow(multi_buffer_row),
789 line_offset_from_top,
790 }),
791 false,
792 window,
793 cx,
794 );
795 return;
796 }
797 }
798 }
799 }
800
801 if !is_singleton {
802 let display_row = (ScrollPixelOffset::from(
803 (event.position - gutter_hitbox.bounds.origin).y / position_map.line_height,
804 ) + position_map.scroll_position.y) as u32;
805 let multi_buffer_row = position_map
806 .snapshot
807 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
808 .row;
809 if line_numbers
810 .get(&MultiBufferRow(multi_buffer_row))
811 .is_some_and(|line_layout| {
812 line_layout.segments.iter().any(|segment| {
813 segment
814 .hitbox
815 .as_ref()
816 .is_some_and(|hitbox| hitbox.contains(&event.position))
817 })
818 })
819 {
820 let line_offset_from_top = display_row - position_map.scroll_position.y as u32;
821
822 editor.open_excerpts_common(
823 Some(JumpData::MultiBufferRow {
824 row: MultiBufferRow(multi_buffer_row),
825 line_offset_from_top,
826 }),
827 modifiers.alt,
828 window,
829 cx,
830 );
831 cx.stop_propagation();
832 return;
833 }
834 }
835
836 let position = point_for_position.previous_valid;
837 if let Some(mode) = Editor::columnar_selection_mode(&modifiers, cx) {
838 editor.select(
839 SelectPhase::BeginColumnar {
840 position,
841 reset: match mode {
842 ColumnarMode::FromMouse => true,
843 ColumnarMode::FromSelection => false,
844 },
845 mode,
846 goal_column: point_for_position.exact_unclipped.column(),
847 },
848 window,
849 cx,
850 );
851 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
852 {
853 editor.select(
854 SelectPhase::Extend {
855 position,
856 click_count,
857 },
858 window,
859 cx,
860 );
861 } else {
862 editor.select(
863 SelectPhase::Begin {
864 position,
865 add: Editor::is_alt_pressed(&modifiers, cx),
866 click_count,
867 },
868 window,
869 cx,
870 );
871 }
872 cx.stop_propagation();
873 }
874
875 fn mouse_right_down(
876 editor: &mut Editor,
877 event: &MouseDownEvent,
878 position_map: &PositionMap,
879 window: &mut Window,
880 cx: &mut Context<Editor>,
881 ) {
882 if position_map.gutter_hitbox.is_hovered(window) {
883 let gutter_right_padding = editor.gutter_dimensions.right_padding;
884 let hitbox = &position_map.gutter_hitbox;
885
886 if event.position.x <= hitbox.bounds.right() - gutter_right_padding {
887 let point_for_position = position_map.point_for_position(event.position);
888 editor.set_breakpoint_context_menu(
889 point_for_position.previous_valid.row(),
890 None,
891 event.position,
892 window,
893 cx,
894 );
895 }
896 return;
897 }
898
899 if !position_map.text_hitbox.is_hovered(window) {
900 return;
901 }
902
903 let point_for_position = position_map.point_for_position(event.position);
904 mouse_context_menu::deploy_context_menu(
905 editor,
906 Some(event.position),
907 point_for_position.previous_valid,
908 window,
909 cx,
910 );
911 cx.stop_propagation();
912 }
913
914 fn mouse_middle_down(
915 editor: &mut Editor,
916 event: &MouseDownEvent,
917 position_map: &PositionMap,
918 window: &mut Window,
919 cx: &mut Context<Editor>,
920 ) {
921 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
922 return;
923 }
924
925 let point_for_position = position_map.point_for_position(event.position);
926 let position = point_for_position.previous_valid;
927
928 editor.select(
929 SelectPhase::BeginColumnar {
930 position,
931 reset: true,
932 mode: ColumnarMode::FromMouse,
933 goal_column: point_for_position.exact_unclipped.column(),
934 },
935 window,
936 cx,
937 );
938 }
939
940 fn mouse_up(
941 editor: &mut Editor,
942 event: &MouseUpEvent,
943 position_map: &PositionMap,
944 window: &mut Window,
945 cx: &mut Context<Editor>,
946 ) {
947 // Handle diff review drag completion
948 if editor.diff_review_drag_state.is_some() {
949 editor.end_diff_review_drag(window, cx);
950 cx.stop_propagation();
951 return;
952 }
953
954 let text_hitbox = &position_map.text_hitbox;
955 let end_selection = editor.has_pending_selection();
956 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
957 let point_for_position = position_map.point_for_position(event.position);
958
959 match editor.selection_drag_state {
960 SelectionDragState::ReadyToDrag {
961 selection: _,
962 ref click_position,
963 mouse_down_time: _,
964 } => {
965 if event.position == *click_position {
966 editor.select(
967 SelectPhase::Begin {
968 position: point_for_position.previous_valid,
969 add: false,
970 click_count: 1, // ready to drag state only occurs on click count 1
971 },
972 window,
973 cx,
974 );
975 editor.selection_drag_state = SelectionDragState::None;
976 cx.stop_propagation();
977 return;
978 } else {
979 debug_panic!("drag state can never be in ready state after drag")
980 }
981 }
982 SelectionDragState::Dragging { ref selection, .. } => {
983 let snapshot = editor.snapshot(window, cx);
984 let selection_display = selection.map(|anchor| anchor.to_display_point(&snapshot));
985 if !point_for_position.intersects_selection(&selection_display)
986 && text_hitbox.is_hovered(window)
987 {
988 let is_cut = !(cfg!(target_os = "macos") && event.modifiers.alt
989 || cfg!(not(target_os = "macos")) && event.modifiers.control);
990 editor.move_selection_on_drop(
991 &selection.clone(),
992 point_for_position.previous_valid,
993 is_cut,
994 window,
995 cx,
996 );
997 }
998 editor.selection_drag_state = SelectionDragState::None;
999 cx.stop_propagation();
1000 cx.notify();
1001 return;
1002 }
1003 _ => {}
1004 }
1005
1006 if end_selection {
1007 editor.select(SelectPhase::End, window, cx);
1008 }
1009
1010 if end_selection && pending_nonempty_selections {
1011 cx.stop_propagation();
1012 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
1013 && event.button == MouseButton::Middle
1014 {
1015 #[allow(
1016 clippy::collapsible_if,
1017 clippy::needless_return,
1018 reason = "The cfg-block below makes this a false positive"
1019 )]
1020 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
1021 return;
1022 }
1023
1024 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
1025 if EditorSettings::get_global(cx).middle_click_paste {
1026 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
1027 let point_for_position = position_map.point_for_position(event.position);
1028 let position = point_for_position.previous_valid;
1029
1030 editor.select(
1031 SelectPhase::Begin {
1032 position,
1033 add: false,
1034 click_count: 1,
1035 },
1036 window,
1037 cx,
1038 );
1039 editor.insert(&text, window, cx);
1040 }
1041 cx.stop_propagation()
1042 }
1043 }
1044 }
1045
1046 fn click(
1047 editor: &mut Editor,
1048 event: &ClickEvent,
1049 position_map: &PositionMap,
1050 window: &mut Window,
1051 cx: &mut Context<Editor>,
1052 ) {
1053 let text_hitbox = &position_map.text_hitbox;
1054 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
1055
1056 let hovered_link_modifier = Editor::is_cmd_or_ctrl_pressed(&event.modifiers(), cx);
1057 let mouse_down_hovered_link_modifier = if let ClickEvent::Mouse(mouse_event) = event {
1058 Editor::is_cmd_or_ctrl_pressed(&mouse_event.down.modifiers, cx)
1059 } else {
1060 true
1061 };
1062
1063 if let Some(mouse_position) = event.mouse_position()
1064 && !pending_nonempty_selections
1065 && hovered_link_modifier
1066 && mouse_down_hovered_link_modifier
1067 && text_hitbox.is_hovered(window)
1068 && !matches!(
1069 editor.selection_drag_state,
1070 SelectionDragState::Dragging { .. }
1071 )
1072 {
1073 let point = position_map.point_for_position(mouse_position);
1074 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
1075 editor.selection_drag_state = SelectionDragState::None;
1076
1077 cx.stop_propagation();
1078 }
1079 }
1080
1081 fn pressure_click(
1082 editor: &mut Editor,
1083 event: &MousePressureEvent,
1084 position_map: &PositionMap,
1085 window: &mut Window,
1086 cx: &mut Context<Editor>,
1087 ) {
1088 let text_hitbox = &position_map.text_hitbox;
1089 let force_click_possible =
1090 matches!(editor.prev_pressure_stage, Some(PressureStage::Normal))
1091 && event.stage == PressureStage::Force;
1092
1093 editor.prev_pressure_stage = Some(event.stage);
1094
1095 if force_click_possible && text_hitbox.is_hovered(window) {
1096 let point = position_map.point_for_position(event.position);
1097 editor.handle_click_hovered_link(point, event.modifiers, window, cx);
1098 editor.selection_drag_state = SelectionDragState::None;
1099 cx.stop_propagation();
1100 }
1101 }
1102
1103 fn mouse_dragged(
1104 editor: &mut Editor,
1105 event: &MouseMoveEvent,
1106 position_map: &PositionMap,
1107 window: &mut Window,
1108 cx: &mut Context<Editor>,
1109 ) {
1110 if !editor.has_pending_selection()
1111 && matches!(editor.selection_drag_state, SelectionDragState::None)
1112 {
1113 return;
1114 }
1115
1116 let point_for_position = position_map.point_for_position(event.position);
1117 let text_hitbox = &position_map.text_hitbox;
1118
1119 let scroll_delta = {
1120 let text_bounds = text_hitbox.bounds;
1121 let mut scroll_delta = gpui::Point::<f32>::default();
1122 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
1123 let top = text_bounds.origin.y + vertical_margin;
1124 let bottom = text_bounds.bottom_left().y - vertical_margin;
1125 if event.position.y < top {
1126 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
1127 }
1128 if event.position.y > bottom {
1129 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
1130 }
1131
1132 // We need horizontal width of text
1133 let style = editor.style.clone().unwrap_or_default();
1134 let font_id = window.text_system().resolve_font(&style.text.font());
1135 let font_size = style.text.font_size.to_pixels(window.rem_size());
1136 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
1137
1138 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
1139
1140 let scroll_space: Pixels = scroll_margin_x * em_width;
1141
1142 let left = text_bounds.origin.x + scroll_space;
1143 let right = text_bounds.top_right().x - scroll_space;
1144
1145 if event.position.x < left {
1146 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
1147 }
1148 if event.position.x > right {
1149 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
1150 }
1151 scroll_delta
1152 };
1153
1154 if !editor.has_pending_selection() {
1155 let drop_anchor = position_map
1156 .snapshot
1157 .display_point_to_anchor(point_for_position.previous_valid, Bias::Left);
1158 match editor.selection_drag_state {
1159 SelectionDragState::Dragging {
1160 ref mut drop_cursor,
1161 ref mut hide_drop_cursor,
1162 ..
1163 } => {
1164 drop_cursor.start = drop_anchor;
1165 drop_cursor.end = drop_anchor;
1166 *hide_drop_cursor = !text_hitbox.is_hovered(window);
1167 editor.apply_scroll_delta(scroll_delta, window, cx);
1168 cx.notify();
1169 }
1170 SelectionDragState::ReadyToDrag {
1171 ref selection,
1172 ref click_position,
1173 ref mouse_down_time,
1174 } => {
1175 let drag_and_drop_delay = Duration::from_millis(
1176 EditorSettings::get_global(cx)
1177 .drag_and_drop_selection
1178 .delay
1179 .0,
1180 );
1181 if mouse_down_time.elapsed() >= drag_and_drop_delay {
1182 let drop_cursor = Selection {
1183 id: post_inc(&mut editor.selections.next_selection_id()),
1184 start: drop_anchor,
1185 end: drop_anchor,
1186 reversed: false,
1187 goal: SelectionGoal::None,
1188 };
1189 editor.selection_drag_state = SelectionDragState::Dragging {
1190 selection: selection.clone(),
1191 drop_cursor,
1192 hide_drop_cursor: false,
1193 };
1194 editor.apply_scroll_delta(scroll_delta, window, cx);
1195 cx.notify();
1196 } else {
1197 let click_point = position_map.point_for_position(*click_position);
1198 editor.selection_drag_state = SelectionDragState::None;
1199 editor.select(
1200 SelectPhase::Begin {
1201 position: click_point.previous_valid,
1202 add: false,
1203 click_count: 1,
1204 },
1205 window,
1206 cx,
1207 );
1208 editor.select(
1209 SelectPhase::Update {
1210 position: point_for_position.previous_valid,
1211 goal_column: point_for_position.exact_unclipped.column(),
1212 scroll_delta,
1213 },
1214 window,
1215 cx,
1216 );
1217 }
1218 }
1219 _ => {}
1220 }
1221 } else {
1222 editor.select(
1223 SelectPhase::Update {
1224 position: point_for_position.previous_valid,
1225 goal_column: point_for_position.exact_unclipped.column(),
1226 scroll_delta,
1227 },
1228 window,
1229 cx,
1230 );
1231 }
1232 }
1233
1234 pub(crate) fn mouse_moved(
1235 editor: &mut Editor,
1236 event: &MouseMoveEvent,
1237 position_map: &PositionMap,
1238 split_side: Option<SplitSide>,
1239 window: &mut Window,
1240 cx: &mut Context<Editor>,
1241 ) {
1242 let text_hitbox = &position_map.text_hitbox;
1243 let gutter_hitbox = &position_map.gutter_hitbox;
1244 let modifiers = event.modifiers;
1245 let text_hovered = text_hitbox.is_hovered(window);
1246 let gutter_hovered = gutter_hitbox.is_hovered(window);
1247 editor.set_gutter_hovered(gutter_hovered, cx);
1248 editor.show_mouse_cursor(cx);
1249
1250 let point_for_position = position_map.point_for_position(event.position);
1251 let valid_point = point_for_position.previous_valid;
1252
1253 // Update diff review drag state if we're dragging
1254 if editor.diff_review_drag_state.is_some() {
1255 editor.update_diff_review_drag(valid_point.row(), window, cx);
1256 }
1257
1258 let hovered_diff_control = position_map
1259 .diff_hunk_control_bounds
1260 .iter()
1261 .find(|(_, bounds)| bounds.contains(&event.position))
1262 .map(|(row, _)| *row);
1263
1264 let hovered_diff_hunk_row = if let Some(control_row) = hovered_diff_control {
1265 Some(control_row)
1266 } else if text_hovered {
1267 let current_row = valid_point.row();
1268 position_map.display_hunks.iter().find_map(|(hunk, _)| {
1269 if let DisplayDiffHunk::Unfolded {
1270 display_row_range, ..
1271 } = hunk
1272 {
1273 if display_row_range.contains(¤t_row) {
1274 Some(display_row_range.start)
1275 } else {
1276 None
1277 }
1278 } else {
1279 None
1280 }
1281 })
1282 } else {
1283 None
1284 };
1285
1286 if hovered_diff_hunk_row != editor.hovered_diff_hunk_row {
1287 editor.hovered_diff_hunk_row = hovered_diff_hunk_row;
1288 cx.notify();
1289 }
1290
1291 if let Some((bounds, buffer_id, blame_entry)) = &position_map.inline_blame_bounds {
1292 let mouse_over_inline_blame = bounds.contains(&event.position);
1293 let mouse_over_popover = editor
1294 .inline_blame_popover
1295 .as_ref()
1296 .and_then(|state| state.popover_bounds)
1297 .is_some_and(|bounds| bounds.contains(&event.position));
1298 let keyboard_grace = editor
1299 .inline_blame_popover
1300 .as_ref()
1301 .is_some_and(|state| state.keyboard_grace);
1302
1303 if mouse_over_inline_blame || mouse_over_popover {
1304 editor.show_blame_popover(*buffer_id, blame_entry, event.position, false, cx);
1305 } else if !keyboard_grace {
1306 editor.hide_blame_popover(false, cx);
1307 }
1308 } else {
1309 let keyboard_grace = editor
1310 .inline_blame_popover
1311 .as_ref()
1312 .is_some_and(|state| state.keyboard_grace);
1313 if !keyboard_grace {
1314 editor.hide_blame_popover(false, cx);
1315 }
1316 }
1317
1318 // Handle diff review indicator when gutter is hovered in diff mode with AI enabled
1319 let show_diff_review = editor.show_diff_review_button()
1320 && cx.has_flag::<DiffReviewFeatureFlag>()
1321 && !DisableAiSettings::is_ai_disabled_for_buffer(
1322 editor.buffer.read(cx).as_singleton().as_ref(),
1323 cx,
1324 );
1325
1326 let diff_review_indicator = if gutter_hovered && show_diff_review {
1327 let is_visible = editor
1328 .gutter_diff_review_indicator
1329 .0
1330 .is_some_and(|indicator| indicator.is_active);
1331
1332 if !is_visible {
1333 editor
1334 .gutter_diff_review_indicator
1335 .1
1336 .get_or_insert_with(|| {
1337 cx.spawn(async move |this, cx| {
1338 cx.background_executor()
1339 .timer(Duration::from_millis(200))
1340 .await;
1341
1342 this.update(cx, |this, cx| {
1343 if let Some(indicator) =
1344 this.gutter_diff_review_indicator.0.as_mut()
1345 {
1346 indicator.is_active = true;
1347 cx.notify();
1348 }
1349 })
1350 .ok();
1351 })
1352 });
1353 }
1354
1355 let anchor = position_map
1356 .snapshot
1357 .display_point_to_anchor(valid_point, Bias::Left);
1358 Some(PhantomDiffReviewIndicator {
1359 start: anchor,
1360 end: anchor,
1361 is_active: is_visible,
1362 })
1363 } else {
1364 editor.gutter_diff_review_indicator.1 = None;
1365 None
1366 };
1367
1368 if diff_review_indicator != editor.gutter_diff_review_indicator.0 {
1369 editor.gutter_diff_review_indicator.0 = diff_review_indicator;
1370 cx.notify();
1371 }
1372
1373 // Don't show breakpoint indicator when diff review indicator is active on this row
1374 let is_on_diff_review_button_row = diff_review_indicator.is_some_and(|indicator| {
1375 let start_row = indicator
1376 .start
1377 .to_display_point(&position_map.snapshot.display_snapshot)
1378 .row();
1379 indicator.is_active && start_row == valid_point.row()
1380 });
1381
1382 let breakpoint_indicator = if gutter_hovered
1383 && !is_on_diff_review_button_row
1384 && split_side != Some(SplitSide::Left)
1385 {
1386 let buffer_anchor = position_map
1387 .snapshot
1388 .display_point_to_anchor(valid_point, Bias::Left);
1389
1390 if let Some((buffer_snapshot, file)) = position_map
1391 .snapshot
1392 .buffer_snapshot()
1393 .buffer_for_excerpt(buffer_anchor.excerpt_id)
1394 .and_then(|buffer| buffer.file().map(|file| (buffer, file)))
1395 {
1396 let as_point = text::ToPoint::to_point(&buffer_anchor.text_anchor, buffer_snapshot);
1397
1398 let is_visible = editor
1399 .gutter_breakpoint_indicator
1400 .0
1401 .is_some_and(|indicator| indicator.is_active);
1402
1403 let has_existing_breakpoint =
1404 editor.breakpoint_store.as_ref().is_some_and(|store| {
1405 let Some(project) = &editor.project else {
1406 return false;
1407 };
1408 let Some(abs_path) = project.read(cx).absolute_path(
1409 &ProjectPath {
1410 path: file.path().clone(),
1411 worktree_id: file.worktree_id(cx),
1412 },
1413 cx,
1414 ) else {
1415 return false;
1416 };
1417 store
1418 .read(cx)
1419 .breakpoint_at_row(&abs_path, as_point.row, cx)
1420 .is_some()
1421 });
1422
1423 if !is_visible {
1424 editor.gutter_breakpoint_indicator.1.get_or_insert_with(|| {
1425 cx.spawn(async move |this, cx| {
1426 cx.background_executor()
1427 .timer(Duration::from_millis(200))
1428 .await;
1429
1430 this.update(cx, |this, cx| {
1431 if let Some(indicator) = this.gutter_breakpoint_indicator.0.as_mut()
1432 {
1433 indicator.is_active = true;
1434 cx.notify();
1435 }
1436 })
1437 .ok();
1438 })
1439 });
1440 }
1441
1442 Some(PhantomBreakpointIndicator {
1443 display_row: valid_point.row(),
1444 is_active: is_visible,
1445 collides_with_existing_breakpoint: has_existing_breakpoint,
1446 })
1447 } else {
1448 editor.gutter_breakpoint_indicator.1 = None;
1449 None
1450 }
1451 } else {
1452 editor.gutter_breakpoint_indicator.1 = None;
1453 None
1454 };
1455
1456 if &breakpoint_indicator != &editor.gutter_breakpoint_indicator.0 {
1457 editor.gutter_breakpoint_indicator.0 = breakpoint_indicator;
1458 cx.notify();
1459 }
1460
1461 // Don't trigger hover popover if mouse is hovering over context menu
1462 if text_hovered {
1463 editor.update_hovered_link(
1464 point_for_position,
1465 Some(event.position),
1466 &position_map.snapshot,
1467 modifiers,
1468 window,
1469 cx,
1470 );
1471
1472 if let Some(point) = point_for_position.as_valid() {
1473 let anchor = position_map
1474 .snapshot
1475 .buffer_snapshot()
1476 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
1477 hover_at(editor, Some(anchor), Some(event.position), window, cx);
1478 Self::update_visible_cursor(editor, point, position_map, window, cx);
1479 } else {
1480 editor.update_inlay_link_and_hover_points(
1481 &position_map.snapshot,
1482 point_for_position,
1483 Some(event.position),
1484 modifiers.secondary(),
1485 modifiers.shift,
1486 window,
1487 cx,
1488 );
1489 }
1490 } else {
1491 editor.hide_hovered_link(cx);
1492 hover_at(editor, None, Some(event.position), window, cx);
1493 }
1494 }
1495
1496 fn update_visible_cursor(
1497 editor: &mut Editor,
1498 point: DisplayPoint,
1499 position_map: &PositionMap,
1500 window: &mut Window,
1501 cx: &mut Context<Editor>,
1502 ) {
1503 let snapshot = &position_map.snapshot;
1504 let Some(hub) = editor.collaboration_hub() else {
1505 return;
1506 };
1507 let start = snapshot.display_snapshot.clip_point(
1508 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
1509 Bias::Left,
1510 );
1511 let end = snapshot.display_snapshot.clip_point(
1512 DisplayPoint::new(
1513 point.row(),
1514 (point.column() + 1).min(snapshot.line_len(point.row())),
1515 ),
1516 Bias::Right,
1517 );
1518
1519 let range = snapshot
1520 .buffer_snapshot()
1521 .anchor_before(start.to_point(&snapshot.display_snapshot))
1522 ..snapshot
1523 .buffer_snapshot()
1524 .anchor_after(end.to_point(&snapshot.display_snapshot));
1525
1526 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
1527 return;
1528 };
1529 let key = crate::HoveredCursor {
1530 replica_id: selection.replica_id,
1531 selection_id: selection.selection.id,
1532 };
1533 editor.hovered_cursors.insert(
1534 key.clone(),
1535 cx.spawn_in(window, async move |editor, cx| {
1536 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
1537 editor
1538 .update(cx, |editor, cx| {
1539 editor.hovered_cursors.remove(&key);
1540 cx.notify();
1541 })
1542 .ok();
1543 }),
1544 );
1545 cx.notify()
1546 }
1547
1548 fn layout_selections(
1549 &self,
1550 start_anchor: Anchor,
1551 end_anchor: Anchor,
1552 local_selections: &[Selection<Point>],
1553 snapshot: &EditorSnapshot,
1554 start_row: DisplayRow,
1555 end_row: DisplayRow,
1556 window: &mut Window,
1557 cx: &mut App,
1558 ) -> (
1559 Vec<(PlayerColor, Vec<SelectionLayout>)>,
1560 BTreeMap<DisplayRow, LineHighlightSpec>,
1561 Option<DisplayPoint>,
1562 ) {
1563 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1564 let mut active_rows = BTreeMap::new();
1565 let mut newest_selection_head = None;
1566
1567 let Some(editor_with_selections) = self.editor_with_selections(cx) else {
1568 return (selections, active_rows, newest_selection_head);
1569 };
1570
1571 editor_with_selections.update(cx, |editor, cx| {
1572 if editor.show_local_selections {
1573 let mut layouts = Vec::new();
1574 let newest = editor.selections.newest(&editor.display_snapshot(cx));
1575 for selection in local_selections.iter().cloned() {
1576 let is_empty = selection.start == selection.end;
1577 let is_newest = selection == newest;
1578
1579 let layout = SelectionLayout::new(
1580 selection,
1581 editor.selections.line_mode(),
1582 editor.cursor_offset_on_selection,
1583 editor.cursor_shape,
1584 &snapshot.display_snapshot,
1585 is_newest,
1586 editor.leader_id.is_none(),
1587 None,
1588 );
1589 if is_newest {
1590 newest_selection_head = Some(layout.head);
1591 }
1592
1593 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1594 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1595 {
1596 let contains_non_empty_selection = active_rows
1597 .entry(DisplayRow(row))
1598 .or_insert_with(LineHighlightSpec::default);
1599 contains_non_empty_selection.selection |= !is_empty;
1600 }
1601 layouts.push(layout);
1602 }
1603
1604 let mut player = editor.current_user_player_color(cx);
1605 if !editor.is_focused(window) {
1606 const UNFOCUS_EDITOR_SELECTION_OPACITY: f32 = 0.5;
1607 player.selection = player.selection.opacity(UNFOCUS_EDITOR_SELECTION_OPACITY);
1608 }
1609 selections.push((player, layouts));
1610
1611 if let SelectionDragState::Dragging {
1612 ref selection,
1613 ref drop_cursor,
1614 ref hide_drop_cursor,
1615 } = editor.selection_drag_state
1616 && !hide_drop_cursor
1617 && (drop_cursor
1618 .start
1619 .cmp(&selection.start, &snapshot.buffer_snapshot())
1620 .eq(&Ordering::Less)
1621 || drop_cursor
1622 .end
1623 .cmp(&selection.end, &snapshot.buffer_snapshot())
1624 .eq(&Ordering::Greater))
1625 {
1626 let drag_cursor_layout = SelectionLayout::new(
1627 drop_cursor.clone(),
1628 false,
1629 editor.cursor_offset_on_selection,
1630 CursorShape::Bar,
1631 &snapshot.display_snapshot,
1632 false,
1633 false,
1634 None,
1635 );
1636 let absent_color = cx.theme().players().absent();
1637 selections.push((absent_color, vec![drag_cursor_layout]));
1638 }
1639 }
1640
1641 if let Some(collaboration_hub) = &editor.collaboration_hub {
1642 // When following someone, render the local selections in their color.
1643 if let Some(leader_id) = editor.leader_id {
1644 match leader_id {
1645 CollaboratorId::PeerId(peer_id) => {
1646 if let Some(collaborator) =
1647 collaboration_hub.collaborators(cx).get(&peer_id)
1648 && let Some(participant_index) = collaboration_hub
1649 .user_participant_indices(cx)
1650 .get(&collaborator.user_id)
1651 && let Some((local_selection_style, _)) = selections.first_mut()
1652 {
1653 *local_selection_style = cx
1654 .theme()
1655 .players()
1656 .color_for_participant(participant_index.0);
1657 }
1658 }
1659 CollaboratorId::Agent => {
1660 if let Some((local_selection_style, _)) = selections.first_mut() {
1661 *local_selection_style = cx.theme().players().agent();
1662 }
1663 }
1664 }
1665 }
1666
1667 let mut remote_selections = HashMap::default();
1668 for selection in snapshot.remote_selections_in_range(
1669 &(start_anchor..end_anchor),
1670 collaboration_hub.as_ref(),
1671 cx,
1672 ) {
1673 // Don't re-render the leader's selections, since the local selections
1674 // match theirs.
1675 if Some(selection.collaborator_id) == editor.leader_id {
1676 continue;
1677 }
1678 let key = HoveredCursor {
1679 replica_id: selection.replica_id,
1680 selection_id: selection.selection.id,
1681 };
1682
1683 let is_shown =
1684 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1685
1686 remote_selections
1687 .entry(selection.replica_id)
1688 .or_insert((selection.color, Vec::new()))
1689 .1
1690 .push(SelectionLayout::new(
1691 selection.selection,
1692 selection.line_mode,
1693 editor.cursor_offset_on_selection,
1694 selection.cursor_shape,
1695 &snapshot.display_snapshot,
1696 false,
1697 false,
1698 if is_shown { selection.user_name } else { None },
1699 ));
1700 }
1701
1702 selections.extend(remote_selections.into_values());
1703 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1704 let cursor_offset_on_selection = editor.cursor_offset_on_selection;
1705
1706 let layouts = snapshot
1707 .buffer_snapshot()
1708 .selections_in_range(&(start_anchor..end_anchor), true)
1709 .map(move |(_, line_mode, cursor_shape, selection)| {
1710 SelectionLayout::new(
1711 selection,
1712 line_mode,
1713 cursor_offset_on_selection,
1714 cursor_shape,
1715 &snapshot.display_snapshot,
1716 false,
1717 false,
1718 None,
1719 )
1720 })
1721 .collect::<Vec<_>>();
1722 let player = editor.current_user_player_color(cx);
1723 selections.push((player, layouts));
1724 }
1725 });
1726
1727 #[cfg(debug_assertions)]
1728 Self::layout_debug_ranges(
1729 &mut selections,
1730 start_anchor..end_anchor,
1731 &snapshot.display_snapshot,
1732 cx,
1733 );
1734
1735 (selections, active_rows, newest_selection_head)
1736 }
1737
1738 fn collect_cursors(
1739 &self,
1740 snapshot: &EditorSnapshot,
1741 cx: &mut App,
1742 ) -> Vec<(DisplayPoint, Hsla)> {
1743 let editor = self.editor.read(cx);
1744 let mut cursors = Vec::new();
1745 let mut skip_local = false;
1746 let mut add_cursor = |anchor: Anchor, color| {
1747 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1748 };
1749 // Remote cursors
1750 if let Some(collaboration_hub) = &editor.collaboration_hub {
1751 for remote_selection in snapshot.remote_selections_in_range(
1752 &(Anchor::min()..Anchor::max()),
1753 collaboration_hub.deref(),
1754 cx,
1755 ) {
1756 add_cursor(
1757 remote_selection.selection.head(),
1758 remote_selection.color.cursor,
1759 );
1760 if Some(remote_selection.collaborator_id) == editor.leader_id {
1761 skip_local = true;
1762 }
1763 }
1764 }
1765 // Local cursors
1766 if !skip_local {
1767 let color = cx.theme().players().local().cursor;
1768 editor
1769 .selections
1770 .disjoint_anchors()
1771 .iter()
1772 .for_each(|selection| {
1773 add_cursor(selection.head(), color);
1774 });
1775 if let Some(ref selection) = editor.selections.pending_anchor() {
1776 add_cursor(selection.head(), color);
1777 }
1778 }
1779 cursors
1780 }
1781
1782 fn layout_visible_cursors(
1783 &self,
1784 snapshot: &EditorSnapshot,
1785 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1786 row_block_types: &HashMap<DisplayRow, bool>,
1787 visible_display_row_range: Range<DisplayRow>,
1788 line_layouts: &[LineWithInvisibles],
1789 text_hitbox: &Hitbox,
1790 content_origin: gpui::Point<Pixels>,
1791 scroll_position: gpui::Point<ScrollOffset>,
1792 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
1793 line_height: Pixels,
1794 em_width: Pixels,
1795 em_advance: Pixels,
1796 autoscroll_containing_element: bool,
1797 redacted_ranges: &[Range<DisplayPoint>],
1798 window: &mut Window,
1799 cx: &mut App,
1800 ) -> Vec<CursorLayout> {
1801 let mut autoscroll_bounds = None;
1802 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1803 let mut cursors = Vec::new();
1804
1805 let show_local_cursors = editor.show_local_cursors(window, cx);
1806
1807 for (player_color, selections) in selections {
1808 for selection in selections {
1809 let cursor_position = selection.head;
1810
1811 let in_range = visible_display_row_range.contains(&cursor_position.row());
1812 if (selection.is_local && !show_local_cursors)
1813 || !in_range
1814 || row_block_types.get(&cursor_position.row()) == Some(&true)
1815 {
1816 continue;
1817 }
1818
1819 let cursor_row_layout = &line_layouts
1820 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1821 let cursor_column = cursor_position.column() as usize;
1822
1823 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column)
1824 + cursor_row_layout
1825 .alignment_offset(self.style.text.text_align, text_hitbox.size.width);
1826 let cursor_next_x = cursor_row_layout.x_for_index(cursor_column + 1)
1827 + cursor_row_layout
1828 .alignment_offset(self.style.text.text_align, text_hitbox.size.width);
1829 let mut cell_width = cursor_next_x - cursor_character_x;
1830 if cell_width == Pixels::ZERO {
1831 cell_width = em_advance;
1832 }
1833
1834 let mut block_width = cell_width;
1835 let mut block_text = None;
1836
1837 let is_cursor_in_redacted_range = redacted_ranges
1838 .iter()
1839 .any(|range| range.start <= cursor_position && cursor_position < range.end);
1840
1841 if selection.cursor_shape == CursorShape::Block && !is_cursor_in_redacted_range
1842 {
1843 if let Some(text) = snapshot.grapheme_at(cursor_position).or_else(|| {
1844 if snapshot.is_empty() {
1845 snapshot.placeholder_text().and_then(|s| {
1846 s.graphemes(true).next().map(|s| s.to_string().into())
1847 })
1848 } else {
1849 None
1850 }
1851 }) {
1852 let is_ascii_whitespace_only =
1853 text.as_ref().chars().all(|c| c.is_ascii_whitespace());
1854 let len = text.len();
1855
1856 let mut font = cursor_row_layout
1857 .font_id_for_index(cursor_column)
1858 .and_then(|cursor_font_id| {
1859 window.text_system().get_font_for_id(cursor_font_id)
1860 })
1861 .unwrap_or(self.style.text.font());
1862 font.features = self.style.text.font_features.clone();
1863
1864 // Invert the text color for the block cursor. Ensure that the text
1865 // color is opaque enough to be visible against the background color.
1866 //
1867 // 0.75 is an arbitrary threshold to determine if the background color is
1868 // opaque enough to use as a text color.
1869 //
1870 // TODO: In the future we should ensure themes have a `text_inverse` color.
1871 let color = if cx.theme().colors().editor_background.a < 0.75 {
1872 match cx.theme().appearance {
1873 Appearance::Dark => Hsla::black(),
1874 Appearance::Light => Hsla::white(),
1875 }
1876 } else {
1877 cx.theme().colors().editor_background
1878 };
1879
1880 let shaped = window.text_system().shape_line(
1881 text,
1882 cursor_row_layout.font_size,
1883 &[TextRun {
1884 len,
1885 font,
1886 color,
1887 ..Default::default()
1888 }],
1889 None,
1890 );
1891 if !is_ascii_whitespace_only {
1892 block_width = block_width.max(shaped.width);
1893 }
1894 block_text = Some(shaped);
1895 }
1896 }
1897
1898 let x = cursor_character_x - scroll_pixel_position.x.into();
1899 let y = ((cursor_position.row().as_f64() - scroll_position.y)
1900 * ScrollPixelOffset::from(line_height))
1901 .into();
1902 if selection.is_newest {
1903 editor.pixel_position_of_newest_cursor = Some(point(
1904 text_hitbox.origin.x + x + block_width / 2.,
1905 text_hitbox.origin.y + y + line_height / 2.,
1906 ));
1907
1908 if autoscroll_containing_element {
1909 let top = text_hitbox.origin.y
1910 + ((cursor_position.row().as_f64() - scroll_position.y - 3.)
1911 .max(0.)
1912 * ScrollPixelOffset::from(line_height))
1913 .into();
1914 let left = text_hitbox.origin.x
1915 + ((cursor_position.column() as ScrollOffset
1916 - scroll_position.x
1917 - 3.)
1918 .max(0.)
1919 * ScrollPixelOffset::from(em_width))
1920 .into();
1921
1922 let bottom = text_hitbox.origin.y
1923 + ((cursor_position.row().as_f64() - scroll_position.y + 4.)
1924 * ScrollPixelOffset::from(line_height))
1925 .into();
1926 let right = text_hitbox.origin.x
1927 + ((cursor_position.column() as ScrollOffset - scroll_position.x
1928 + 4.)
1929 * ScrollPixelOffset::from(em_width))
1930 .into();
1931
1932 autoscroll_bounds =
1933 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1934 }
1935 }
1936
1937 let mut cursor = CursorLayout {
1938 color: player_color.cursor,
1939 block_width,
1940 origin: point(x, y),
1941 line_height,
1942 shape: selection.cursor_shape,
1943 block_text,
1944 cursor_name: None,
1945 };
1946 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1947 string: name,
1948 color: self.style.background,
1949 is_top_row: cursor_position.row().0 == 0,
1950 });
1951 cursor.layout(content_origin, cursor_name, window, cx);
1952 cursors.push(cursor);
1953 }
1954 }
1955
1956 cursors
1957 });
1958
1959 if let Some(bounds) = autoscroll_bounds {
1960 window.request_autoscroll(bounds);
1961 }
1962
1963 cursor_layouts
1964 }
1965
1966 fn layout_scrollbars(
1967 &self,
1968 snapshot: &EditorSnapshot,
1969 scrollbar_layout_information: &ScrollbarLayoutInformation,
1970 content_offset: gpui::Point<Pixels>,
1971 scroll_position: gpui::Point<ScrollOffset>,
1972 non_visible_cursors: bool,
1973 right_margin: Pixels,
1974 editor_width: Pixels,
1975 window: &mut Window,
1976 cx: &mut App,
1977 ) -> Option<EditorScrollbars> {
1978 let show_scrollbars = self.editor.read(cx).show_scrollbars;
1979 if (!show_scrollbars.horizontal && !show_scrollbars.vertical)
1980 || self.style.scrollbar_width.is_zero()
1981 {
1982 return None;
1983 }
1984
1985 // If a drag took place after we started dragging the scrollbar,
1986 // cancel the scrollbar drag.
1987 if cx.has_active_drag() {
1988 self.editor.update(cx, |editor, cx| {
1989 editor.scroll_manager.reset_scrollbar_state(cx)
1990 });
1991 }
1992
1993 let editor_settings = EditorSettings::get_global(cx);
1994 let scrollbar_settings = editor_settings.scrollbar;
1995 let show_scrollbars = match scrollbar_settings.show {
1996 ShowScrollbar::Auto => {
1997 let editor = self.editor.read(cx);
1998 let is_singleton = editor.buffer_kind(cx) == ItemBufferKind::Singleton;
1999 // Git
2000 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot().has_diff_hunks())
2001 ||
2002 // Buffer Search Results
2003 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights(HighlightKey::BufferSearchHighlights))
2004 ||
2005 // Selected Text Occurrences
2006 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights(HighlightKey::SelectedTextHighlight))
2007 ||
2008 // Selected Symbol Occurrences
2009 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights(HighlightKey::DocumentHighlightRead) || editor.has_background_highlights(HighlightKey::DocumentHighlightWrite)))
2010 ||
2011 // Diagnostics
2012 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot().has_diagnostics())
2013 ||
2014 // Cursors out of sight
2015 non_visible_cursors
2016 ||
2017 // Scrollmanager
2018 editor.scroll_manager.scrollbars_visible()
2019 }
2020 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
2021 ShowScrollbar::Always => true,
2022 ShowScrollbar::Never => return None,
2023 };
2024
2025 // The horizontal scrollbar is usually slightly offset to align nicely with
2026 // indent guides. However, this offset is not needed if indent guides are
2027 // disabled for the current editor.
2028 let content_offset = self
2029 .editor
2030 .read(cx)
2031 .show_indent_guides
2032 .is_none_or(|should_show| should_show)
2033 .then_some(content_offset)
2034 .unwrap_or_default();
2035
2036 Some(EditorScrollbars::from_scrollbar_axes(
2037 ScrollbarAxes {
2038 horizontal: scrollbar_settings.axes.horizontal
2039 && self.editor.read(cx).show_scrollbars.horizontal,
2040 vertical: scrollbar_settings.axes.vertical
2041 && self.editor.read(cx).show_scrollbars.vertical,
2042 },
2043 scrollbar_layout_information,
2044 content_offset,
2045 scroll_position,
2046 self.style.scrollbar_width,
2047 right_margin,
2048 editor_width,
2049 show_scrollbars,
2050 self.editor.read(cx).scroll_manager.active_scrollbar_state(),
2051 window,
2052 ))
2053 }
2054
2055 fn layout_minimap(
2056 &self,
2057 snapshot: &EditorSnapshot,
2058 minimap_width: Pixels,
2059 scroll_position: gpui::Point<f64>,
2060 scrollbar_layout_information: &ScrollbarLayoutInformation,
2061 scrollbar_layout: Option<&EditorScrollbars>,
2062 window: &mut Window,
2063 cx: &mut App,
2064 ) -> Option<MinimapLayout> {
2065 let minimap_editor = self.editor.read(cx).minimap().cloned()?;
2066
2067 let minimap_settings = EditorSettings::get_global(cx).minimap;
2068
2069 if minimap_settings.on_active_editor() {
2070 let active_editor = self.editor.read(cx).workspace().and_then(|ws| {
2071 ws.read(cx)
2072 .active_pane()
2073 .read(cx)
2074 .active_item()
2075 .and_then(|i| i.act_as::<Editor>(cx))
2076 });
2077 if active_editor.is_some_and(|e| e != self.editor) {
2078 return None;
2079 }
2080 }
2081
2082 if !snapshot.mode.is_full()
2083 || minimap_width.is_zero()
2084 || matches!(
2085 minimap_settings.show,
2086 ShowMinimap::Auto if scrollbar_layout.is_none_or(|layout| !layout.visible)
2087 )
2088 {
2089 return None;
2090 }
2091
2092 const MINIMAP_AXIS: ScrollbarAxis = ScrollbarAxis::Vertical;
2093
2094 let ScrollbarLayoutInformation {
2095 editor_bounds,
2096 scroll_range,
2097 glyph_grid_cell,
2098 } = scrollbar_layout_information;
2099
2100 let line_height = glyph_grid_cell.height;
2101 let scroll_position = scroll_position.along(MINIMAP_AXIS);
2102
2103 let top_right_anchor = scrollbar_layout
2104 .and_then(|layout| layout.vertical.as_ref())
2105 .map(|vertical_scrollbar| vertical_scrollbar.hitbox.origin)
2106 .unwrap_or_else(|| editor_bounds.top_right());
2107
2108 let thumb_state = self
2109 .editor
2110 .read_with(cx, |editor, _| editor.scroll_manager.minimap_thumb_state());
2111
2112 let show_thumb = match minimap_settings.thumb {
2113 MinimapThumb::Always => true,
2114 MinimapThumb::Hover => thumb_state.is_some(),
2115 };
2116
2117 let minimap_bounds = Bounds::from_corner_and_size(
2118 Corner::TopRight,
2119 top_right_anchor,
2120 size(minimap_width, editor_bounds.size.height),
2121 );
2122 let minimap_line_height = self.get_minimap_line_height(
2123 minimap_editor
2124 .read(cx)
2125 .text_style_refinement
2126 .as_ref()
2127 .and_then(|refinement| refinement.font_size)
2128 .unwrap_or(MINIMAP_FONT_SIZE),
2129 window,
2130 cx,
2131 );
2132 let minimap_height = minimap_bounds.size.height;
2133
2134 let visible_editor_lines = (editor_bounds.size.height / line_height) as f64;
2135 let total_editor_lines = (scroll_range.height / line_height) as f64;
2136 let minimap_lines = (minimap_height / minimap_line_height) as f64;
2137
2138 let minimap_scroll_top = MinimapLayout::calculate_minimap_top_offset(
2139 total_editor_lines,
2140 visible_editor_lines,
2141 minimap_lines,
2142 scroll_position,
2143 );
2144
2145 let layout = ScrollbarLayout::for_minimap(
2146 window.insert_hitbox(minimap_bounds, HitboxBehavior::Normal),
2147 visible_editor_lines,
2148 total_editor_lines,
2149 minimap_line_height,
2150 scroll_position,
2151 minimap_scroll_top,
2152 show_thumb,
2153 )
2154 .with_thumb_state(thumb_state);
2155
2156 minimap_editor.update(cx, |editor, cx| {
2157 editor.set_scroll_position(point(0., minimap_scroll_top), window, cx)
2158 });
2159
2160 // Required for the drop shadow to be visible
2161 const PADDING_OFFSET: Pixels = px(4.);
2162
2163 let mut minimap = div()
2164 .size_full()
2165 .shadow_xs()
2166 .px(PADDING_OFFSET)
2167 .child(minimap_editor)
2168 .into_any_element();
2169
2170 let extended_bounds = minimap_bounds.extend(Edges {
2171 right: PADDING_OFFSET,
2172 left: PADDING_OFFSET,
2173 ..Default::default()
2174 });
2175 minimap.layout_as_root(extended_bounds.size.into(), window, cx);
2176 window.with_absolute_element_offset(extended_bounds.origin, |window| {
2177 minimap.prepaint(window, cx)
2178 });
2179
2180 Some(MinimapLayout {
2181 minimap,
2182 thumb_layout: layout,
2183 thumb_border_style: minimap_settings.thumb_border,
2184 minimap_line_height,
2185 minimap_scroll_top,
2186 max_scroll_top: total_editor_lines,
2187 })
2188 }
2189
2190 fn get_minimap_line_height(
2191 &self,
2192 font_size: AbsoluteLength,
2193 window: &mut Window,
2194 cx: &mut App,
2195 ) -> Pixels {
2196 let rem_size = self.rem_size(cx).unwrap_or(window.rem_size());
2197 let mut text_style = self.style.text.clone();
2198 text_style.font_size = font_size;
2199 text_style.line_height_in_pixels(rem_size)
2200 }
2201
2202 fn get_minimap_width(
2203 &self,
2204 minimap_settings: &Minimap,
2205 scrollbars_shown: bool,
2206 text_width: Pixels,
2207 em_width: Pixels,
2208 font_size: Pixels,
2209 rem_size: Pixels,
2210 cx: &App,
2211 ) -> Option<Pixels> {
2212 if minimap_settings.show == ShowMinimap::Auto && !scrollbars_shown {
2213 return None;
2214 }
2215
2216 let minimap_font_size = self.editor.read_with(cx, |editor, cx| {
2217 editor.minimap().map(|minimap_editor| {
2218 minimap_editor
2219 .read(cx)
2220 .text_style_refinement
2221 .as_ref()
2222 .and_then(|refinement| refinement.font_size)
2223 .unwrap_or(MINIMAP_FONT_SIZE)
2224 })
2225 })?;
2226
2227 let minimap_em_width = em_width * (minimap_font_size.to_pixels(rem_size) / font_size);
2228
2229 let minimap_width = (text_width * MinimapLayout::MINIMAP_WIDTH_PCT)
2230 .min(minimap_em_width * minimap_settings.max_width_columns.get() as f32);
2231
2232 (minimap_width >= minimap_em_width * MinimapLayout::MINIMAP_MIN_WIDTH_COLUMNS)
2233 .then_some(minimap_width)
2234 }
2235
2236 fn prepaint_crease_toggles(
2237 &self,
2238 crease_toggles: &mut [Option<AnyElement>],
2239 line_height: Pixels,
2240 gutter_dimensions: &GutterDimensions,
2241 gutter_settings: crate::editor_settings::Gutter,
2242 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2243 gutter_hitbox: &Hitbox,
2244 window: &mut Window,
2245 cx: &mut App,
2246 ) {
2247 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
2248 if let Some(crease_toggle) = crease_toggle {
2249 debug_assert!(gutter_settings.folds);
2250 let available_space = size(
2251 AvailableSpace::MinContent,
2252 AvailableSpace::Definite(line_height * 0.55),
2253 );
2254 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
2255
2256 let position = point(
2257 gutter_dimensions.width - gutter_dimensions.right_padding,
2258 ix as f32 * line_height
2259 - (scroll_pixel_position.y % ScrollPixelOffset::from(line_height)).into(),
2260 );
2261 let centering_offset = point(
2262 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
2263 (line_height - crease_toggle_size.height) / 2.,
2264 );
2265 let origin = gutter_hitbox.origin + position + centering_offset;
2266 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
2267 }
2268 }
2269 }
2270
2271 fn prepaint_expand_toggles(
2272 &self,
2273 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
2274 window: &mut Window,
2275 cx: &mut App,
2276 ) {
2277 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
2278 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
2279 expand_toggle.layout_as_root(available_space, window, cx);
2280 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
2281 }
2282 }
2283
2284 fn prepaint_crease_trailers(
2285 &self,
2286 trailers: Vec<Option<AnyElement>>,
2287 lines: &[LineWithInvisibles],
2288 line_height: Pixels,
2289 content_origin: gpui::Point<Pixels>,
2290 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2291 em_width: Pixels,
2292 window: &mut Window,
2293 cx: &mut App,
2294 ) -> Vec<Option<CreaseTrailerLayout>> {
2295 trailers
2296 .into_iter()
2297 .enumerate()
2298 .map(|(ix, element)| {
2299 let mut element = element?;
2300 let available_space = size(
2301 AvailableSpace::MinContent,
2302 AvailableSpace::Definite(line_height),
2303 );
2304 let size = element.layout_as_root(available_space, window, cx);
2305
2306 let line = &lines[ix];
2307 let padding = if line.width == Pixels::ZERO {
2308 Pixels::ZERO
2309 } else {
2310 4. * em_width
2311 };
2312 let position = point(
2313 Pixels::from(scroll_pixel_position.x) + line.width + padding,
2314 ix as f32 * line_height
2315 - (scroll_pixel_position.y % ScrollPixelOffset::from(line_height)).into(),
2316 );
2317 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
2318 let origin = content_origin + position + centering_offset;
2319 element.prepaint_as_root(origin, available_space, window, cx);
2320 Some(CreaseTrailerLayout {
2321 element,
2322 bounds: Bounds::new(origin, size),
2323 })
2324 })
2325 .collect()
2326 }
2327
2328 // Folds contained in a hunk are ignored apart from shrinking visual size
2329 // If a fold contains any hunks then that fold line is marked as modified
2330 fn layout_gutter_diff_hunks(
2331 &self,
2332 line_height: Pixels,
2333 gutter_hitbox: &Hitbox,
2334 display_rows: Range<DisplayRow>,
2335 snapshot: &EditorSnapshot,
2336 window: &mut Window,
2337 cx: &mut App,
2338 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
2339 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
2340 let mut display_hunks = snapshot
2341 .display_diff_hunks_for_rows(display_rows, folded_buffers)
2342 .map(|hunk| (hunk, None))
2343 .collect::<Vec<_>>();
2344 let git_gutter_setting = ProjectSettings::get_global(cx).git.git_gutter;
2345 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
2346 for (hunk, hitbox) in &mut display_hunks {
2347 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
2348 let hunk_bounds =
2349 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
2350 *hitbox = Some(window.insert_hitbox(hunk_bounds, HitboxBehavior::BlockMouse));
2351 }
2352 }
2353 }
2354
2355 display_hunks
2356 }
2357
2358 fn layout_inline_diagnostics(
2359 &self,
2360 line_layouts: &[LineWithInvisibles],
2361 crease_trailers: &[Option<CreaseTrailerLayout>],
2362 row_block_types: &HashMap<DisplayRow, bool>,
2363 content_origin: gpui::Point<Pixels>,
2364 scroll_position: gpui::Point<ScrollOffset>,
2365 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2366 edit_prediction_popover_origin: Option<gpui::Point<Pixels>>,
2367 start_row: DisplayRow,
2368 end_row: DisplayRow,
2369 line_height: Pixels,
2370 em_width: Pixels,
2371 style: &EditorStyle,
2372 window: &mut Window,
2373 cx: &mut App,
2374 ) -> HashMap<DisplayRow, AnyElement> {
2375 let max_severity = match self
2376 .editor
2377 .read(cx)
2378 .inline_diagnostics_enabled()
2379 .then(|| {
2380 ProjectSettings::get_global(cx)
2381 .diagnostics
2382 .inline
2383 .max_severity
2384 .unwrap_or_else(|| self.editor.read(cx).diagnostics_max_severity)
2385 .into_lsp()
2386 })
2387 .flatten()
2388 {
2389 Some(max_severity) => max_severity,
2390 None => return HashMap::default(),
2391 };
2392
2393 let active_diagnostics_group =
2394 if let ActiveDiagnostic::Group(group) = &self.editor.read(cx).active_diagnostics {
2395 Some(group.group_id)
2396 } else {
2397 None
2398 };
2399
2400 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
2401 let snapshot = editor.snapshot(window, cx);
2402 editor
2403 .inline_diagnostics
2404 .iter()
2405 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
2406 .filter(|(_, diagnostic)| match active_diagnostics_group {
2407 Some(active_diagnostics_group) => {
2408 // Active diagnostics are all shown in the editor already, no need to display them inline
2409 diagnostic.group_id != active_diagnostics_group
2410 }
2411 None => true,
2412 })
2413 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
2414 .skip_while(|(point, _)| point.row() < start_row)
2415 .take_while(|(point, _)| point.row() < end_row)
2416 .filter(|(point, _)| !row_block_types.contains_key(&point.row()))
2417 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
2418 acc.entry(point.row())
2419 .or_insert_with(Vec::new)
2420 .push(diagnostic);
2421 acc
2422 })
2423 });
2424
2425 if diagnostics_by_rows.is_empty() {
2426 return HashMap::default();
2427 }
2428
2429 let severity_to_color = |sev: &lsp::DiagnosticSeverity| match sev {
2430 &lsp::DiagnosticSeverity::ERROR => Color::Error,
2431 &lsp::DiagnosticSeverity::WARNING => Color::Warning,
2432 &lsp::DiagnosticSeverity::INFORMATION => Color::Info,
2433 &lsp::DiagnosticSeverity::HINT => Color::Hint,
2434 _ => Color::Error,
2435 };
2436
2437 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
2438 let min_x = column_pixels(
2439 &self.style,
2440 ProjectSettings::get_global(cx)
2441 .diagnostics
2442 .inline
2443 .min_column as usize,
2444 window,
2445 );
2446
2447 let mut elements = HashMap::default();
2448 for (row, mut diagnostics) in diagnostics_by_rows {
2449 diagnostics.sort_by_key(|diagnostic| {
2450 (
2451 diagnostic.severity,
2452 std::cmp::Reverse(diagnostic.is_primary),
2453 diagnostic.start.row,
2454 diagnostic.start.column,
2455 )
2456 });
2457
2458 let Some(diagnostic_to_render) = diagnostics
2459 .iter()
2460 .find(|diagnostic| diagnostic.is_primary)
2461 .or_else(|| diagnostics.first())
2462 else {
2463 continue;
2464 };
2465
2466 let pos_y = content_origin.y + line_height * (row.0 as f64 - scroll_position.y) as f32;
2467
2468 let window_ix = row.0.saturating_sub(start_row.0) as usize;
2469 let pos_x = {
2470 let crease_trailer_layout = &crease_trailers[window_ix];
2471 let line_layout = &line_layouts[window_ix];
2472
2473 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
2474 crease_trailer.bounds.right()
2475 } else {
2476 Pixels::from(
2477 ScrollPixelOffset::from(content_origin.x + line_layout.width)
2478 - scroll_pixel_position.x,
2479 )
2480 };
2481
2482 let padded_line = line_end + padding;
2483 let min_start = Pixels::from(
2484 ScrollPixelOffset::from(content_origin.x + min_x) - scroll_pixel_position.x,
2485 );
2486
2487 cmp::max(padded_line, min_start)
2488 };
2489
2490 let behind_edit_prediction_popover = edit_prediction_popover_origin
2491 .as_ref()
2492 .is_some_and(|edit_prediction_popover_origin| {
2493 (pos_y..pos_y + line_height).contains(&edit_prediction_popover_origin.y)
2494 });
2495 let opacity = if behind_edit_prediction_popover {
2496 0.5
2497 } else {
2498 1.0
2499 };
2500
2501 let mut element = h_flex()
2502 .id(("diagnostic", row.0))
2503 .h(line_height)
2504 .w_full()
2505 .px_1()
2506 .rounded_xs()
2507 .opacity(opacity)
2508 .bg(severity_to_color(&diagnostic_to_render.severity)
2509 .color(cx)
2510 .opacity(0.05))
2511 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
2512 .text_sm()
2513 .font(style.text.font())
2514 .child(diagnostic_to_render.message.clone())
2515 .into_any();
2516
2517 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
2518
2519 elements.insert(row, element);
2520 }
2521
2522 elements
2523 }
2524
2525 fn layout_inline_code_actions(
2526 &self,
2527 display_point: DisplayPoint,
2528 content_origin: gpui::Point<Pixels>,
2529 scroll_position: gpui::Point<ScrollOffset>,
2530 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2531 line_height: Pixels,
2532 snapshot: &EditorSnapshot,
2533 window: &mut Window,
2534 cx: &mut App,
2535 ) -> Option<AnyElement> {
2536 // Don't show code actions in split diff view
2537 if self.split_side.is_some() {
2538 return None;
2539 }
2540
2541 if !snapshot
2542 .show_code_actions
2543 .unwrap_or(EditorSettings::get_global(cx).inline_code_actions)
2544 {
2545 return None;
2546 }
2547
2548 let icon_size = ui::IconSize::XSmall;
2549 let mut button = self.editor.update(cx, |editor, cx| {
2550 editor.available_code_actions.as_ref()?;
2551 let active = editor
2552 .context_menu
2553 .borrow()
2554 .as_ref()
2555 .and_then(|menu| {
2556 if let crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2557 deployed_from,
2558 ..
2559 }) = menu
2560 {
2561 deployed_from.as_ref()
2562 } else {
2563 None
2564 }
2565 })
2566 .is_some_and(|source| matches!(source, CodeActionSource::Indicator(..)));
2567 Some(editor.render_inline_code_actions(icon_size, display_point.row(), active, cx))
2568 })?;
2569
2570 let buffer_point = display_point.to_point(&snapshot.display_snapshot);
2571
2572 // do not show code action for folded line
2573 if snapshot.is_line_folded(MultiBufferRow(buffer_point.row)) {
2574 return None;
2575 }
2576
2577 // do not show code action for blank line with cursor
2578 let line_indent = snapshot
2579 .display_snapshot
2580 .buffer_snapshot()
2581 .line_indent_for_row(MultiBufferRow(buffer_point.row));
2582 if line_indent.is_line_blank() {
2583 return None;
2584 }
2585
2586 const INLINE_SLOT_CHAR_LIMIT: u32 = 4;
2587 const MAX_ALTERNATE_DISTANCE: u32 = 8;
2588
2589 let excerpt_id = snapshot
2590 .display_snapshot
2591 .buffer_snapshot()
2592 .excerpt_containing(buffer_point..buffer_point)
2593 .map(|excerpt| excerpt.id());
2594
2595 let is_valid_row = |row_candidate: u32| -> bool {
2596 // move to other row if folded row
2597 if snapshot.is_line_folded(MultiBufferRow(row_candidate)) {
2598 return false;
2599 }
2600 if buffer_point.row == row_candidate {
2601 // move to other row if cursor is in slot
2602 if buffer_point.column < INLINE_SLOT_CHAR_LIMIT {
2603 return false;
2604 }
2605 } else {
2606 let candidate_point = MultiBufferPoint {
2607 row: row_candidate,
2608 column: 0,
2609 };
2610 let candidate_excerpt_id = snapshot
2611 .display_snapshot
2612 .buffer_snapshot()
2613 .excerpt_containing(candidate_point..candidate_point)
2614 .map(|excerpt| excerpt.id());
2615 // move to other row if different excerpt
2616 if excerpt_id != candidate_excerpt_id {
2617 return false;
2618 }
2619 }
2620 let line_indent = snapshot
2621 .display_snapshot
2622 .buffer_snapshot()
2623 .line_indent_for_row(MultiBufferRow(row_candidate));
2624 // use this row if it's blank
2625 if line_indent.is_line_blank() {
2626 true
2627 } else {
2628 // use this row if code starts after slot
2629 let indent_size = snapshot
2630 .display_snapshot
2631 .buffer_snapshot()
2632 .indent_size_for_line(MultiBufferRow(row_candidate));
2633 indent_size.len >= INLINE_SLOT_CHAR_LIMIT
2634 }
2635 };
2636
2637 let new_buffer_row = if is_valid_row(buffer_point.row) {
2638 Some(buffer_point.row)
2639 } else {
2640 let max_row = snapshot.display_snapshot.buffer_snapshot().max_point().row;
2641 (1..=MAX_ALTERNATE_DISTANCE).find_map(|offset| {
2642 let row_above = buffer_point.row.saturating_sub(offset);
2643 let row_below = buffer_point.row + offset;
2644 if row_above != buffer_point.row && is_valid_row(row_above) {
2645 Some(row_above)
2646 } else if row_below <= max_row && is_valid_row(row_below) {
2647 Some(row_below)
2648 } else {
2649 None
2650 }
2651 })
2652 }?;
2653
2654 let new_display_row = snapshot
2655 .display_snapshot
2656 .point_to_display_point(
2657 Point {
2658 row: new_buffer_row,
2659 column: buffer_point.column,
2660 },
2661 text::Bias::Left,
2662 )
2663 .row();
2664
2665 let start_y = content_origin.y
2666 + (((new_display_row.as_f64() - scroll_position.y) as f32) * line_height)
2667 + (line_height / 2.0)
2668 - (icon_size.square(window, cx) / 2.);
2669 let start_x = (ScrollPixelOffset::from(content_origin.x) - scroll_pixel_position.x
2670 + ScrollPixelOffset::from(window.rem_size() * 0.1))
2671 .into();
2672
2673 let absolute_offset = gpui::point(start_x, start_y);
2674 button.layout_as_root(gpui::AvailableSpace::min_size(), window, cx);
2675 button.prepaint_as_root(
2676 absolute_offset,
2677 gpui::AvailableSpace::min_size(),
2678 window,
2679 cx,
2680 );
2681 Some(button)
2682 }
2683
2684 fn layout_inline_blame(
2685 &self,
2686 display_row: DisplayRow,
2687 row_info: &RowInfo,
2688 line_layout: &LineWithInvisibles,
2689 crease_trailer: Option<&CreaseTrailerLayout>,
2690 em_width: Pixels,
2691 content_origin: gpui::Point<Pixels>,
2692 scroll_position: gpui::Point<ScrollOffset>,
2693 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2694 line_height: Pixels,
2695 window: &mut Window,
2696 cx: &mut App,
2697 ) -> Option<InlineBlameLayout> {
2698 if !self
2699 .editor
2700 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
2701 {
2702 return None;
2703 }
2704
2705 let editor = self.editor.read(cx);
2706 let blame = editor.blame.clone()?;
2707 let padding = {
2708 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
2709
2710 let mut padding = ProjectSettings::get_global(cx).git.inline_blame.padding as f32;
2711
2712 if let Some(edit_prediction) = editor.active_edit_prediction.as_ref()
2713 && let EditPrediction::Edit {
2714 display_mode: EditDisplayMode::TabAccept,
2715 ..
2716 } = &edit_prediction.completion
2717 {
2718 padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS
2719 }
2720
2721 padding * em_width
2722 };
2723
2724 let (buffer_id, entry) = blame
2725 .update(cx, |blame, cx| {
2726 blame.blame_for_rows(&[*row_info], cx).next()
2727 })
2728 .flatten()?;
2729
2730 let mut element = render_inline_blame_entry(entry.clone(), &self.style, cx)?;
2731
2732 let start_y =
2733 content_origin.y + line_height * ((display_row.as_f64() - scroll_position.y) as f32);
2734
2735 let start_x = {
2736 let line_end = if let Some(crease_trailer) = crease_trailer {
2737 crease_trailer.bounds.right()
2738 } else {
2739 Pixels::from(
2740 ScrollPixelOffset::from(content_origin.x + line_layout.width)
2741 - scroll_pixel_position.x,
2742 )
2743 };
2744
2745 let padded_line_end = line_end + padding;
2746
2747 let min_column_in_pixels = column_pixels(
2748 &self.style,
2749 ProjectSettings::get_global(cx).git.inline_blame.min_column as usize,
2750 window,
2751 );
2752 let min_start = Pixels::from(
2753 ScrollPixelOffset::from(content_origin.x + min_column_in_pixels)
2754 - scroll_pixel_position.x,
2755 );
2756
2757 cmp::max(padded_line_end, min_start)
2758 };
2759
2760 let absolute_offset = point(start_x, start_y);
2761 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2762 let bounds = Bounds::new(absolute_offset, size);
2763
2764 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
2765
2766 Some(InlineBlameLayout {
2767 element,
2768 bounds,
2769 buffer_id,
2770 entry,
2771 })
2772 }
2773
2774 fn layout_blame_popover(
2775 &self,
2776 editor_snapshot: &EditorSnapshot,
2777 text_hitbox: &Hitbox,
2778 line_height: Pixels,
2779 window: &mut Window,
2780 cx: &mut App,
2781 ) {
2782 if !self.editor.read(cx).inline_blame_popover.is_some() {
2783 return;
2784 }
2785
2786 let Some(blame) = self.editor.read(cx).blame.clone() else {
2787 return;
2788 };
2789 let cursor_point = self
2790 .editor
2791 .read(cx)
2792 .selections
2793 .newest::<language::Point>(&editor_snapshot.display_snapshot)
2794 .head();
2795
2796 let Some((buffer, buffer_point, _)) = editor_snapshot
2797 .buffer_snapshot()
2798 .point_to_buffer_point(cursor_point)
2799 else {
2800 return;
2801 };
2802
2803 let row_info = RowInfo {
2804 buffer_id: Some(buffer.remote_id()),
2805 buffer_row: Some(buffer_point.row),
2806 ..Default::default()
2807 };
2808
2809 let Some((buffer_id, blame_entry)) = blame
2810 .update(cx, |blame, cx| blame.blame_for_rows(&[row_info], cx).next())
2811 .flatten()
2812 else {
2813 return;
2814 };
2815
2816 let Some((popover_state, target_point)) = self.editor.read_with(cx, |editor, _| {
2817 editor
2818 .inline_blame_popover
2819 .as_ref()
2820 .map(|state| (state.popover_state.clone(), state.position))
2821 }) else {
2822 return;
2823 };
2824
2825 let workspace = self
2826 .editor
2827 .read_with(cx, |editor, _| editor.workspace().map(|w| w.downgrade()));
2828
2829 let maybe_element = workspace.and_then(|workspace| {
2830 render_blame_entry_popover(
2831 blame_entry,
2832 popover_state.scroll_handle,
2833 popover_state.commit_message,
2834 popover_state.markdown,
2835 workspace,
2836 &blame,
2837 buffer_id,
2838 window,
2839 cx,
2840 )
2841 });
2842
2843 if let Some(mut element) = maybe_element {
2844 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2845 let overall_height = size.height + HOVER_POPOVER_GAP;
2846 let popover_origin = if target_point.y > overall_height {
2847 point(target_point.x, target_point.y - size.height)
2848 } else {
2849 point(
2850 target_point.x,
2851 target_point.y + line_height + HOVER_POPOVER_GAP,
2852 )
2853 };
2854
2855 let horizontal_offset = (text_hitbox.top_right().x
2856 - POPOVER_RIGHT_OFFSET
2857 - (popover_origin.x + size.width))
2858 .min(Pixels::ZERO);
2859
2860 let origin = point(popover_origin.x + horizontal_offset, popover_origin.y);
2861 let popover_bounds = Bounds::new(origin, size);
2862
2863 self.editor.update(cx, |editor, _| {
2864 if let Some(state) = &mut editor.inline_blame_popover {
2865 state.popover_bounds = Some(popover_bounds);
2866 }
2867 });
2868
2869 window.defer_draw(element, origin, 2, None);
2870 }
2871 }
2872
2873 fn layout_blame_entries(
2874 &self,
2875 buffer_rows: &[RowInfo],
2876 em_width: Pixels,
2877 scroll_position: gpui::Point<ScrollOffset>,
2878 line_height: Pixels,
2879 gutter_hitbox: &Hitbox,
2880 max_width: Option<Pixels>,
2881 window: &mut Window,
2882 cx: &mut App,
2883 ) -> Option<Vec<AnyElement>> {
2884 if !self
2885 .editor
2886 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
2887 {
2888 return None;
2889 }
2890
2891 let blame = self.editor.read(cx).blame.clone()?;
2892 let workspace = self.editor.read(cx).workspace()?;
2893 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
2894 blame.blame_for_rows(buffer_rows, cx).collect()
2895 });
2896
2897 let width = if let Some(max_width) = max_width {
2898 AvailableSpace::Definite(max_width)
2899 } else {
2900 AvailableSpace::MaxContent
2901 };
2902 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
2903 let start_x = em_width;
2904
2905 let mut last_used_color: Option<(Hsla, Oid)> = None;
2906 let blame_renderer = cx.global::<GlobalBlameRenderer>().0.clone();
2907
2908 let shaped_lines = blamed_rows
2909 .into_iter()
2910 .enumerate()
2911 .flat_map(|(ix, blame_entry)| {
2912 let (buffer_id, blame_entry) = blame_entry?;
2913 let mut element = render_blame_entry(
2914 ix,
2915 &blame,
2916 blame_entry,
2917 &self.style,
2918 &mut last_used_color,
2919 self.editor.clone(),
2920 workspace.clone(),
2921 buffer_id,
2922 &*blame_renderer,
2923 window,
2924 cx,
2925 )?;
2926
2927 let start_y = ix as f32 * line_height
2928 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height));
2929 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
2930
2931 element.prepaint_as_root(
2932 absolute_offset,
2933 size(width, AvailableSpace::MinContent),
2934 window,
2935 cx,
2936 );
2937
2938 Some(element)
2939 })
2940 .collect();
2941
2942 Some(shaped_lines)
2943 }
2944
2945 fn layout_indent_guides(
2946 &self,
2947 content_origin: gpui::Point<Pixels>,
2948 text_origin: gpui::Point<Pixels>,
2949 visible_buffer_range: Range<MultiBufferRow>,
2950 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2951 line_height: Pixels,
2952 snapshot: &DisplaySnapshot,
2953 window: &mut Window,
2954 cx: &mut App,
2955 ) -> Option<Vec<IndentGuideLayout>> {
2956 let indent_guides = self.editor.update(cx, |editor, cx| {
2957 editor.indent_guides(visible_buffer_range, snapshot, cx)
2958 })?;
2959
2960 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
2961 editor
2962 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
2963 .unwrap_or_default()
2964 });
2965
2966 Some(
2967 indent_guides
2968 .into_iter()
2969 .enumerate()
2970 .filter_map(|(i, indent_guide)| {
2971 let single_indent_width =
2972 column_pixels(&self.style, indent_guide.tab_size as usize, window);
2973 let total_width = single_indent_width * indent_guide.depth as f32;
2974 let start_x = Pixels::from(
2975 ScrollOffset::from(content_origin.x + total_width)
2976 - scroll_pixel_position.x,
2977 );
2978 if start_x >= text_origin.x {
2979 let (offset_y, length, display_row_range) =
2980 Self::calculate_indent_guide_bounds(
2981 indent_guide.start_row..indent_guide.end_row,
2982 line_height,
2983 snapshot,
2984 );
2985
2986 let start_y = Pixels::from(
2987 ScrollOffset::from(content_origin.y) + offset_y
2988 - scroll_pixel_position.y,
2989 );
2990
2991 Some(IndentGuideLayout {
2992 origin: point(start_x, start_y),
2993 length,
2994 single_indent_width,
2995 display_row_range,
2996 depth: indent_guide.depth,
2997 active: active_indent_guide_indices.contains(&i),
2998 settings: indent_guide.settings,
2999 })
3000 } else {
3001 None
3002 }
3003 })
3004 .collect(),
3005 )
3006 }
3007
3008 fn depth_zero_indent_guide_padding_for_row(
3009 indent_guides: &[IndentGuideLayout],
3010 row: DisplayRow,
3011 ) -> Pixels {
3012 indent_guides
3013 .iter()
3014 .find(|guide| guide.depth == 0 && guide.display_row_range.contains(&row))
3015 .and_then(|guide| {
3016 guide
3017 .settings
3018 .visible_line_width(guide.active)
3019 .map(|width| px(width as f32 * 2.0))
3020 })
3021 .unwrap_or(px(0.0))
3022 }
3023
3024 fn layout_wrap_guides(
3025 &self,
3026 em_advance: Pixels,
3027 scroll_position: gpui::Point<f64>,
3028 content_origin: gpui::Point<Pixels>,
3029 scrollbar_layout: Option<&EditorScrollbars>,
3030 vertical_scrollbar_width: Pixels,
3031 hitbox: &Hitbox,
3032 window: &Window,
3033 cx: &App,
3034 ) -> SmallVec<[(Pixels, bool); 2]> {
3035 let scroll_left = scroll_position.x as f32 * em_advance;
3036 let content_origin = content_origin.x;
3037 let horizontal_offset = content_origin - scroll_left;
3038 let vertical_scrollbar_width = scrollbar_layout
3039 .and_then(|layout| layout.visible.then_some(vertical_scrollbar_width))
3040 .unwrap_or_default();
3041
3042 self.editor
3043 .read(cx)
3044 .wrap_guides(cx)
3045 .into_iter()
3046 .flat_map(|(guide, active)| {
3047 let wrap_position = column_pixels(&self.style, guide, window);
3048 let wrap_guide_x = wrap_position + horizontal_offset;
3049 let display_wrap_guide = wrap_guide_x >= content_origin
3050 && wrap_guide_x <= hitbox.bounds.right() - vertical_scrollbar_width;
3051
3052 display_wrap_guide.then_some((wrap_guide_x, active))
3053 })
3054 .collect()
3055 }
3056
3057 fn calculate_indent_guide_bounds(
3058 row_range: Range<MultiBufferRow>,
3059 line_height: Pixels,
3060 snapshot: &DisplaySnapshot,
3061 ) -> (f64, gpui::Pixels, Range<DisplayRow>) {
3062 let start_point = Point::new(row_range.start.0, 0);
3063 let end_point = Point::new(row_range.end.0, 0);
3064
3065 let mut row_range = start_point.to_display_point(snapshot).row()
3066 ..end_point.to_display_point(snapshot).row();
3067
3068 let mut prev_line = start_point;
3069 prev_line.row = prev_line.row.saturating_sub(1);
3070 let prev_line = prev_line.to_display_point(snapshot).row();
3071
3072 let mut cons_line = end_point;
3073 cons_line.row += 1;
3074 let cons_line = cons_line.to_display_point(snapshot).row();
3075
3076 let mut offset_y = row_range.start.as_f64() * f64::from(line_height);
3077 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
3078
3079 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
3080 if row_range.end == cons_line {
3081 length += line_height;
3082 }
3083
3084 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
3085 // we want to extend the indent guide to the start of the block.
3086 let mut block_height = 0;
3087 let mut block_offset = 0;
3088 let mut found_excerpt_header = false;
3089 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
3090 if matches!(
3091 block,
3092 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
3093 ) {
3094 found_excerpt_header = true;
3095 break;
3096 }
3097 block_offset += block.height();
3098 block_height += block.height();
3099 }
3100 if !found_excerpt_header {
3101 offset_y -= block_offset as f64 * f64::from(line_height);
3102 length += block_height as f32 * line_height;
3103 row_range = DisplayRow(row_range.start.0.saturating_sub(block_offset))..row_range.end;
3104 }
3105
3106 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
3107 // we want to ensure that the indent guide stops before the excerpt header.
3108 let mut block_height = 0;
3109 let mut found_excerpt_header = false;
3110 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
3111 if matches!(
3112 block,
3113 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
3114 ) {
3115 found_excerpt_header = true;
3116 }
3117 block_height += block.height();
3118 }
3119 if found_excerpt_header {
3120 length -= block_height as f32 * line_height;
3121 } else {
3122 row_range = row_range.start..cons_line;
3123 }
3124
3125 (offset_y, length, row_range)
3126 }
3127
3128 fn layout_breakpoints(
3129 &self,
3130 line_height: Pixels,
3131 range: Range<DisplayRow>,
3132 scroll_position: gpui::Point<ScrollOffset>,
3133 gutter_dimensions: &GutterDimensions,
3134 gutter_hitbox: &Hitbox,
3135 snapshot: &EditorSnapshot,
3136 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
3137 row_infos: &[RowInfo],
3138 window: &mut Window,
3139 cx: &mut App,
3140 ) -> Vec<AnyElement> {
3141 if self.split_side == Some(SplitSide::Left) {
3142 return Vec::new();
3143 }
3144
3145 self.editor.update(cx, |editor, cx| {
3146 breakpoints
3147 .into_iter()
3148 .filter_map(|(display_row, (text_anchor, bp, state))| {
3149 if row_infos
3150 .get((display_row.0.saturating_sub(range.start.0)) as usize)
3151 .is_some_and(|row_info| {
3152 row_info.expand_info.is_some()
3153 || row_info
3154 .diff_status
3155 .is_some_and(|status| status.is_deleted())
3156 })
3157 {
3158 return None;
3159 }
3160
3161 if range.start > display_row || range.end < display_row {
3162 return None;
3163 }
3164
3165 let row =
3166 MultiBufferRow(DisplayPoint::new(display_row, 0).to_point(snapshot).row);
3167 if snapshot.is_line_folded(row) {
3168 return None;
3169 }
3170
3171 let button = editor.render_breakpoint(text_anchor, display_row, &bp, state, cx);
3172
3173 let button = prepaint_gutter_button(
3174 button.into_any_element(),
3175 display_row,
3176 line_height,
3177 gutter_dimensions,
3178 scroll_position,
3179 gutter_hitbox,
3180 window,
3181 cx,
3182 );
3183 Some(button)
3184 })
3185 .collect_vec()
3186 })
3187 }
3188
3189 fn should_render_diff_review_button(
3190 &self,
3191 range: Range<DisplayRow>,
3192 row_infos: &[RowInfo],
3193 snapshot: &EditorSnapshot,
3194 cx: &App,
3195 ) -> Option<(DisplayRow, Option<u32>)> {
3196 if !cx.has_flag::<DiffReviewFeatureFlag>() {
3197 return None;
3198 }
3199
3200 let show_diff_review_button = self.editor.read(cx).show_diff_review_button();
3201 if !show_diff_review_button {
3202 return None;
3203 }
3204
3205 let indicator = self.editor.read(cx).gutter_diff_review_indicator.0?;
3206 if !indicator.is_active {
3207 return None;
3208 }
3209
3210 let display_row = indicator
3211 .start
3212 .to_display_point(&snapshot.display_snapshot)
3213 .row();
3214 let row_index = (display_row.0.saturating_sub(range.start.0)) as usize;
3215
3216 let row_info = row_infos.get(row_index);
3217 if row_info.is_some_and(|row_info| row_info.expand_info.is_some()) {
3218 return None;
3219 }
3220
3221 let buffer_id = row_info.and_then(|info| info.buffer_id);
3222 if buffer_id.is_none() {
3223 return None;
3224 }
3225
3226 let editor = self.editor.read(cx);
3227 if buffer_id.is_some_and(|buffer_id| editor.is_buffer_folded(buffer_id, cx)) {
3228 return None;
3229 }
3230
3231 let buffer_row = row_info.and_then(|info| info.buffer_row);
3232 Some((display_row, buffer_row))
3233 }
3234
3235 #[allow(clippy::too_many_arguments)]
3236 fn layout_run_indicators(
3237 &self,
3238 line_height: Pixels,
3239 range: Range<DisplayRow>,
3240 row_infos: &[RowInfo],
3241 scroll_position: gpui::Point<ScrollOffset>,
3242 gutter_dimensions: &GutterDimensions,
3243 gutter_hitbox: &Hitbox,
3244 snapshot: &EditorSnapshot,
3245 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
3246 window: &mut Window,
3247 cx: &mut App,
3248 ) -> Vec<AnyElement> {
3249 if self.split_side == Some(SplitSide::Left) {
3250 return Vec::new();
3251 }
3252
3253 self.editor.update(cx, |editor, cx| {
3254 let active_task_indicator_row =
3255 // TODO: add edit button on the right side of each row in the context menu
3256 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
3257 deployed_from,
3258 actions,
3259 ..
3260 })) = editor.context_menu.borrow().as_ref()
3261 {
3262 actions
3263 .tasks()
3264 .map(|tasks| tasks.position.to_display_point(snapshot).row())
3265 .or_else(|| match deployed_from {
3266 Some(CodeActionSource::Indicator(row)) => Some(*row),
3267 _ => None,
3268 })
3269 } else {
3270 None
3271 };
3272
3273 let offset_range_start =
3274 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
3275
3276 let offset_range_end =
3277 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
3278
3279 editor
3280 .runnables
3281 .all_runnables()
3282 .filter_map(|tasks| {
3283 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot());
3284 if multibuffer_point < offset_range_start
3285 || multibuffer_point > offset_range_end
3286 {
3287 return None;
3288 }
3289 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
3290 let buffer_folded = snapshot
3291 .buffer_snapshot()
3292 .buffer_line_for_row(multibuffer_row)
3293 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
3294 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
3295 .unwrap_or(false);
3296 if buffer_folded {
3297 return None;
3298 }
3299
3300 if snapshot.is_line_folded(multibuffer_row) {
3301 // Skip folded indicators, unless it's the starting line of a fold.
3302 if multibuffer_row
3303 .0
3304 .checked_sub(1)
3305 .is_some_and(|previous_row| {
3306 snapshot.is_line_folded(MultiBufferRow(previous_row))
3307 })
3308 {
3309 return None;
3310 }
3311 }
3312
3313 let display_row = multibuffer_point.to_display_point(snapshot).row();
3314 if !range.contains(&display_row) {
3315 return None;
3316 }
3317 if row_infos
3318 .get((display_row - range.start).0 as usize)
3319 .is_some_and(|row_info| row_info.expand_info.is_some())
3320 {
3321 return None;
3322 }
3323
3324 let removed_breakpoint = breakpoints.remove(&display_row);
3325 let button = editor.render_run_indicator(
3326 &self.style,
3327 Some(display_row) == active_task_indicator_row,
3328 display_row,
3329 removed_breakpoint,
3330 cx,
3331 );
3332
3333 let button = prepaint_gutter_button(
3334 button.into_any_element(),
3335 display_row,
3336 line_height,
3337 gutter_dimensions,
3338 scroll_position,
3339 gutter_hitbox,
3340 window,
3341 cx,
3342 );
3343 Some(button)
3344 })
3345 .collect_vec()
3346 })
3347 }
3348
3349 fn layout_expand_toggles(
3350 &self,
3351 gutter_hitbox: &Hitbox,
3352 gutter_dimensions: GutterDimensions,
3353 em_width: Pixels,
3354 line_height: Pixels,
3355 scroll_position: gpui::Point<ScrollOffset>,
3356 buffer_rows: &[RowInfo],
3357 window: &mut Window,
3358 cx: &mut App,
3359 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
3360 if self.editor.read(cx).disable_expand_excerpt_buttons {
3361 return vec![];
3362 }
3363
3364 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
3365
3366 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
3367
3368 let max_line_number_length = self
3369 .editor
3370 .read(cx)
3371 .buffer()
3372 .read(cx)
3373 .snapshot(cx)
3374 .widest_line_number()
3375 .ilog10()
3376 + 1;
3377
3378 let git_gutter_width = Self::gutter_strip_width(line_height)
3379 + gutter_dimensions
3380 .git_blame_entries_width
3381 .unwrap_or_default();
3382 let available_width = gutter_dimensions.left_padding - git_gutter_width;
3383
3384 buffer_rows
3385 .iter()
3386 .enumerate()
3387 .map(|(ix, row_info)| {
3388 let ExpandInfo {
3389 excerpt_id,
3390 direction,
3391 } = row_info.expand_info?;
3392
3393 let icon_name = match direction {
3394 ExpandExcerptDirection::Up => IconName::ExpandUp,
3395 ExpandExcerptDirection::Down => IconName::ExpandDown,
3396 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
3397 };
3398
3399 let editor = self.editor.clone();
3400 let is_wide = max_line_number_length
3401 >= EditorSettings::get_global(cx).gutter.min_line_number_digits as u32
3402 && row_info
3403 .buffer_row
3404 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
3405 || gutter_dimensions.right_padding == px(0.);
3406
3407 let width = if is_wide {
3408 available_width - px(5.)
3409 } else {
3410 available_width + em_width - px(5.)
3411 };
3412
3413 let toggle = IconButton::new(("expand", ix), icon_name)
3414 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
3415 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
3416 .width(width)
3417 .on_click(move |_, window, cx| {
3418 editor.update(cx, |editor, cx| {
3419 editor.expand_excerpt(excerpt_id, direction, window, cx);
3420 });
3421 })
3422 .tooltip(Tooltip::for_action_title(
3423 "Expand Excerpt",
3424 &crate::actions::ExpandExcerpts::default(),
3425 ))
3426 .into_any_element();
3427
3428 let position = point(
3429 git_gutter_width + px(1.),
3430 ix as f32 * line_height
3431 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height))
3432 + px(1.),
3433 );
3434 let origin = gutter_hitbox.origin + position;
3435
3436 Some((toggle, origin))
3437 })
3438 .collect()
3439 }
3440
3441 fn layout_line_numbers(
3442 &self,
3443 gutter_hitbox: Option<&Hitbox>,
3444 gutter_dimensions: GutterDimensions,
3445 line_height: Pixels,
3446 scroll_position: gpui::Point<ScrollOffset>,
3447 rows: Range<DisplayRow>,
3448 buffer_rows: &[RowInfo],
3449 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3450 current_selection_head: Option<DisplayRow>,
3451 snapshot: &EditorSnapshot,
3452 window: &mut Window,
3453 cx: &mut App,
3454 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
3455 let include_line_numbers = snapshot
3456 .show_line_numbers
3457 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
3458 if !include_line_numbers {
3459 return Arc::default();
3460 }
3461
3462 let relative = self.editor.read(cx).relative_line_numbers(cx);
3463
3464 let relative_line_numbers_enabled = relative.enabled();
3465 let relative_rows = if relative_line_numbers_enabled
3466 && let Some(current_selection_head) = current_selection_head
3467 {
3468 snapshot.calculate_relative_line_numbers(
3469 &rows,
3470 current_selection_head,
3471 relative.wrapped(),
3472 )
3473 } else {
3474 Default::default()
3475 };
3476
3477 let mut line_number = String::new();
3478 let segments = buffer_rows.iter().enumerate().flat_map(|(ix, row_info)| {
3479 let display_row = DisplayRow(rows.start.0 + ix as u32);
3480 line_number.clear();
3481 let non_relative_number = if relative.wrapped() {
3482 row_info.buffer_row.or(row_info.wrapped_buffer_row)? + 1
3483 } else {
3484 row_info.buffer_row? + 1
3485 };
3486 let relative_number = relative_rows.get(&display_row);
3487 if !(relative_line_numbers_enabled && relative_number.is_some())
3488 && !snapshot.number_deleted_lines
3489 && row_info
3490 .diff_status
3491 .is_some_and(|status| status.is_deleted())
3492 {
3493 return None;
3494 }
3495
3496 let number = relative_number.unwrap_or(&non_relative_number);
3497 write!(&mut line_number, "{number}").unwrap();
3498
3499 let color = active_rows
3500 .get(&display_row)
3501 .map(|spec| {
3502 if spec.breakpoint {
3503 cx.theme().colors().debugger_accent
3504 } else {
3505 cx.theme().colors().editor_active_line_number
3506 }
3507 })
3508 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
3509 let shaped_line =
3510 self.shape_line_number(SharedString::from(&line_number), color, window);
3511 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
3512 let line_origin = gutter_hitbox.map(|hitbox| {
3513 hitbox.origin
3514 + point(
3515 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
3516 ix as f32 * line_height
3517 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height)),
3518 )
3519 });
3520
3521 #[cfg(not(test))]
3522 let hitbox = line_origin.map(|line_origin| {
3523 window.insert_hitbox(
3524 Bounds::new(line_origin, size(shaped_line.width, line_height)),
3525 HitboxBehavior::Normal,
3526 )
3527 });
3528 #[cfg(test)]
3529 let hitbox = {
3530 let _ = line_origin;
3531 None
3532 };
3533
3534 let segment = LineNumberSegment {
3535 shaped_line,
3536 hitbox,
3537 };
3538
3539 let buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
3540 let multi_buffer_row = MultiBufferRow(buffer_row);
3541
3542 Some((multi_buffer_row, segment))
3543 });
3544
3545 let mut line_numbers: HashMap<MultiBufferRow, LineNumberLayout> = HashMap::default();
3546 for (buffer_row, segment) in segments {
3547 line_numbers
3548 .entry(buffer_row)
3549 .or_insert_with(|| LineNumberLayout {
3550 segments: Default::default(),
3551 })
3552 .segments
3553 .push(segment);
3554 }
3555 Arc::new(line_numbers)
3556 }
3557
3558 fn layout_crease_toggles(
3559 &self,
3560 rows: Range<DisplayRow>,
3561 row_infos: &[RowInfo],
3562 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3563 snapshot: &EditorSnapshot,
3564 window: &mut Window,
3565 cx: &mut App,
3566 ) -> Vec<Option<AnyElement>> {
3567 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
3568 && snapshot.mode.is_full()
3569 && self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
3570 if include_fold_statuses {
3571 row_infos
3572 .iter()
3573 .enumerate()
3574 .map(|(ix, info)| {
3575 if info.expand_info.is_some() {
3576 return None;
3577 }
3578 let row = info.multibuffer_row?;
3579 let display_row = DisplayRow(rows.start.0 + ix as u32);
3580 let active = active_rows.contains_key(&display_row);
3581
3582 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
3583 })
3584 .collect()
3585 } else {
3586 Vec::new()
3587 }
3588 }
3589
3590 fn layout_crease_trailers(
3591 &self,
3592 buffer_rows: impl IntoIterator<Item = RowInfo>,
3593 snapshot: &EditorSnapshot,
3594 window: &mut Window,
3595 cx: &mut App,
3596 ) -> Vec<Option<AnyElement>> {
3597 buffer_rows
3598 .into_iter()
3599 .map(|row_info| {
3600 if row_info.expand_info.is_some() {
3601 return None;
3602 }
3603 if let Some(row) = row_info.multibuffer_row {
3604 snapshot.render_crease_trailer(row, window, cx)
3605 } else {
3606 None
3607 }
3608 })
3609 .collect()
3610 }
3611
3612 fn bg_segments_per_row(
3613 rows: Range<DisplayRow>,
3614 selections: &[(PlayerColor, Vec<SelectionLayout>)],
3615 highlight_ranges: &[(Range<DisplayPoint>, Hsla)],
3616 base_background: Hsla,
3617 ) -> Vec<Vec<(Range<DisplayPoint>, Hsla)>> {
3618 if rows.start >= rows.end {
3619 return Vec::new();
3620 }
3621 if !base_background.is_opaque() {
3622 // We don't actually know what color is behind this editor.
3623 return Vec::new();
3624 }
3625 let highlight_iter = highlight_ranges.iter().cloned();
3626 let selection_iter = selections.iter().flat_map(|(player_color, layouts)| {
3627 let color = player_color.selection;
3628 layouts.iter().filter_map(move |selection_layout| {
3629 if selection_layout.range.start != selection_layout.range.end {
3630 Some((selection_layout.range.clone(), color))
3631 } else {
3632 None
3633 }
3634 })
3635 });
3636 let mut per_row_map = vec![Vec::new(); rows.len()];
3637 for (range, color) in highlight_iter.chain(selection_iter) {
3638 let covered_rows = if range.end.column() == 0 {
3639 cmp::max(range.start.row(), rows.start)..cmp::min(range.end.row(), rows.end)
3640 } else {
3641 cmp::max(range.start.row(), rows.start)
3642 ..cmp::min(range.end.row().next_row(), rows.end)
3643 };
3644 for row in covered_rows.iter_rows() {
3645 let seg_start = if row == range.start.row() {
3646 range.start
3647 } else {
3648 DisplayPoint::new(row, 0)
3649 };
3650 let seg_end = if row == range.end.row() && range.end.column() != 0 {
3651 range.end
3652 } else {
3653 DisplayPoint::new(row, u32::MAX)
3654 };
3655 let ix = row.minus(rows.start) as usize;
3656 debug_assert!(row >= rows.start && row < rows.end);
3657 debug_assert!(ix < per_row_map.len());
3658 per_row_map[ix].push((seg_start..seg_end, color));
3659 }
3660 }
3661 for row_segments in per_row_map.iter_mut() {
3662 if row_segments.is_empty() {
3663 continue;
3664 }
3665 let segments = mem::take(row_segments);
3666 let merged = Self::merge_overlapping_ranges(segments, base_background);
3667 *row_segments = merged;
3668 }
3669 per_row_map
3670 }
3671
3672 /// Merge overlapping ranges by splitting at all range boundaries and blending colors where
3673 /// multiple ranges overlap. The result contains non-overlapping ranges ordered from left to right.
3674 ///
3675 /// Expects `start.row() == end.row()` for each range.
3676 fn merge_overlapping_ranges(
3677 ranges: Vec<(Range<DisplayPoint>, Hsla)>,
3678 base_background: Hsla,
3679 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
3680 struct Boundary {
3681 pos: DisplayPoint,
3682 is_start: bool,
3683 index: usize,
3684 color: Hsla,
3685 }
3686
3687 let mut boundaries: SmallVec<[Boundary; 16]> = SmallVec::with_capacity(ranges.len() * 2);
3688 for (index, (range, color)) in ranges.iter().enumerate() {
3689 debug_assert!(
3690 range.start.row() == range.end.row(),
3691 "expects single-row ranges"
3692 );
3693 if range.start < range.end {
3694 boundaries.push(Boundary {
3695 pos: range.start,
3696 is_start: true,
3697 index,
3698 color: *color,
3699 });
3700 boundaries.push(Boundary {
3701 pos: range.end,
3702 is_start: false,
3703 index,
3704 color: *color,
3705 });
3706 }
3707 }
3708
3709 if boundaries.is_empty() {
3710 return Vec::new();
3711 }
3712
3713 boundaries
3714 .sort_unstable_by(|a, b| a.pos.cmp(&b.pos).then_with(|| a.is_start.cmp(&b.is_start)));
3715
3716 let mut processed_ranges: Vec<(Range<DisplayPoint>, Hsla)> = Vec::new();
3717 let mut active_ranges: SmallVec<[(usize, Hsla); 8]> = SmallVec::new();
3718
3719 let mut i = 0;
3720 let mut start_pos = boundaries[0].pos;
3721
3722 let boundaries_len = boundaries.len();
3723 while i < boundaries_len {
3724 let current_boundary_pos = boundaries[i].pos;
3725 if start_pos < current_boundary_pos {
3726 if !active_ranges.is_empty() {
3727 let mut color = base_background;
3728 for &(_, c) in &active_ranges {
3729 color = Hsla::blend(color, c);
3730 }
3731 if let Some((last_range, last_color)) = processed_ranges.last_mut() {
3732 if *last_color == color && last_range.end == start_pos {
3733 last_range.end = current_boundary_pos;
3734 } else {
3735 processed_ranges.push((start_pos..current_boundary_pos, color));
3736 }
3737 } else {
3738 processed_ranges.push((start_pos..current_boundary_pos, color));
3739 }
3740 }
3741 }
3742 while i < boundaries_len && boundaries[i].pos == current_boundary_pos {
3743 let active_range = &boundaries[i];
3744 if active_range.is_start {
3745 let idx = active_range.index;
3746 let pos = active_ranges
3747 .binary_search_by_key(&idx, |(i, _)| *i)
3748 .unwrap_or_else(|p| p);
3749 active_ranges.insert(pos, (idx, active_range.color));
3750 } else {
3751 let idx = active_range.index;
3752 if let Ok(pos) = active_ranges.binary_search_by_key(&idx, |(i, _)| *i) {
3753 active_ranges.remove(pos);
3754 }
3755 }
3756 i += 1;
3757 }
3758 start_pos = current_boundary_pos;
3759 }
3760
3761 processed_ranges
3762 }
3763
3764 fn layout_lines(
3765 rows: Range<DisplayRow>,
3766 snapshot: &EditorSnapshot,
3767 style: &EditorStyle,
3768 editor_width: Pixels,
3769 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3770 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
3771 window: &mut Window,
3772 cx: &mut App,
3773 ) -> Vec<LineWithInvisibles> {
3774 if rows.start >= rows.end {
3775 return Vec::new();
3776 }
3777
3778 // Show the placeholder when the editor is empty
3779 if snapshot.is_empty() {
3780 let font_size = style.text.font_size.to_pixels(window.rem_size());
3781 let placeholder_color = cx.theme().colors().text_placeholder;
3782 let placeholder_text = snapshot.placeholder_text();
3783
3784 let placeholder_lines = placeholder_text
3785 .as_ref()
3786 .map_or(Vec::new(), |text| text.split('\n').collect::<Vec<_>>());
3787
3788 let placeholder_line_count = placeholder_lines.len();
3789
3790 placeholder_lines
3791 .into_iter()
3792 .skip(rows.start.0 as usize)
3793 .chain(iter::repeat(""))
3794 .take(cmp::max(rows.len(), placeholder_line_count))
3795 .map(move |line| {
3796 let run = TextRun {
3797 len: line.len(),
3798 font: style.text.font(),
3799 color: placeholder_color,
3800 ..Default::default()
3801 };
3802 let line = window.text_system().shape_line(
3803 line.to_string().into(),
3804 font_size,
3805 &[run],
3806 None,
3807 );
3808 LineWithInvisibles {
3809 width: line.width,
3810 len: line.len,
3811 fragments: smallvec![LineFragment::Text(line)],
3812 invisibles: Vec::new(),
3813 font_size,
3814 }
3815 })
3816 .collect()
3817 } else {
3818 let use_tree_sitter = !snapshot.semantic_tokens_enabled
3819 || snapshot.use_tree_sitter_for_syntax(rows.start, cx);
3820 let chunks = snapshot.highlighted_chunks(rows.clone(), use_tree_sitter, style);
3821 LineWithInvisibles::from_chunks(
3822 chunks,
3823 style,
3824 MAX_LINE_LEN,
3825 rows.len(),
3826 &snapshot.mode,
3827 editor_width,
3828 is_row_soft_wrapped,
3829 bg_segments_per_row,
3830 window,
3831 cx,
3832 )
3833 }
3834 }
3835
3836 fn prepaint_lines(
3837 &self,
3838 start_row: DisplayRow,
3839 line_layouts: &mut [LineWithInvisibles],
3840 line_height: Pixels,
3841 scroll_position: gpui::Point<ScrollOffset>,
3842 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
3843 content_origin: gpui::Point<Pixels>,
3844 window: &mut Window,
3845 cx: &mut App,
3846 ) -> SmallVec<[AnyElement; 1]> {
3847 let mut line_elements = SmallVec::new();
3848 for (ix, line) in line_layouts.iter_mut().enumerate() {
3849 let row = start_row + DisplayRow(ix as u32);
3850 line.prepaint(
3851 line_height,
3852 scroll_position,
3853 scroll_pixel_position,
3854 row,
3855 content_origin,
3856 &mut line_elements,
3857 window,
3858 cx,
3859 );
3860 }
3861 line_elements
3862 }
3863
3864 fn render_block(
3865 &self,
3866 block: &Block,
3867 available_width: AvailableSpace,
3868 block_id: BlockId,
3869 block_row_start: DisplayRow,
3870 snapshot: &EditorSnapshot,
3871 text_x: Pixels,
3872 rows: &Range<DisplayRow>,
3873 line_layouts: &[LineWithInvisibles],
3874 editor_margins: &EditorMargins,
3875 line_height: Pixels,
3876 em_width: Pixels,
3877 text_hitbox: &Hitbox,
3878 editor_width: Pixels,
3879 scroll_width: &mut Pixels,
3880 resized_blocks: &mut HashMap<CustomBlockId, u32>,
3881 row_block_types: &mut HashMap<DisplayRow, bool>,
3882 selections: &[Selection<Point>],
3883 selected_buffer_ids: &Vec<BufferId>,
3884 latest_selection_anchors: &HashMap<BufferId, Anchor>,
3885 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3886 sticky_header_excerpt_id: Option<ExcerptId>,
3887 indent_guides: &Option<Vec<IndentGuideLayout>>,
3888 block_resize_offset: &mut i32,
3889 window: &mut Window,
3890 cx: &mut App,
3891 ) -> Option<(AnyElement, Size<Pixels>, DisplayRow, Pixels)> {
3892 let mut x_position = None;
3893 let mut element = match block {
3894 Block::Custom(custom) => {
3895 let block_start = custom.start().to_point(&snapshot.buffer_snapshot());
3896 let block_end = custom.end().to_point(&snapshot.buffer_snapshot());
3897 if block.place_near() && snapshot.is_line_folded(MultiBufferRow(block_start.row)) {
3898 return None;
3899 }
3900 let align_to = block_start.to_display_point(snapshot);
3901 let x_and_width = |layout: &LineWithInvisibles| {
3902 Some((
3903 text_x + layout.x_for_index(align_to.column() as usize),
3904 text_x + layout.width,
3905 ))
3906 };
3907 let line_ix = align_to.row().0.checked_sub(rows.start.0);
3908 x_position =
3909 if let Some(layout) = line_ix.and_then(|ix| line_layouts.get(ix as usize)) {
3910 x_and_width(layout)
3911 } else {
3912 x_and_width(&layout_line(
3913 align_to.row(),
3914 snapshot,
3915 &self.style,
3916 editor_width,
3917 is_row_soft_wrapped,
3918 window,
3919 cx,
3920 ))
3921 };
3922
3923 let anchor_x = x_position.unwrap().0;
3924
3925 let selected = selections
3926 .binary_search_by(|selection| {
3927 if selection.end <= block_start {
3928 Ordering::Less
3929 } else if selection.start >= block_end {
3930 Ordering::Greater
3931 } else {
3932 Ordering::Equal
3933 }
3934 })
3935 .is_ok();
3936
3937 div()
3938 .size_full()
3939 .child(
3940 custom.render(&mut BlockContext {
3941 window,
3942 app: cx,
3943 anchor_x,
3944 margins: editor_margins,
3945 line_height,
3946 em_width,
3947 block_id,
3948 height: custom.height.unwrap_or(1),
3949 selected,
3950 max_width: text_hitbox.size.width.max(*scroll_width),
3951 editor_style: &self.style,
3952 indent_guide_padding: indent_guides
3953 .as_ref()
3954 .map(|guides| {
3955 Self::depth_zero_indent_guide_padding_for_row(
3956 guides,
3957 block_row_start,
3958 )
3959 })
3960 .unwrap_or(px(0.0)),
3961 }),
3962 )
3963 .into_any()
3964 }
3965
3966 Block::FoldedBuffer {
3967 first_excerpt,
3968 height,
3969 ..
3970 } => {
3971 let mut result = v_flex().id(block_id).w_full().pr(editor_margins.right);
3972
3973 if self.should_show_buffer_headers() {
3974 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
3975 let jump_data = header_jump_data(
3976 snapshot,
3977 block_row_start,
3978 *height,
3979 first_excerpt,
3980 latest_selection_anchors,
3981 );
3982 result = result.child(self.render_buffer_header(
3983 first_excerpt,
3984 true,
3985 selected,
3986 false,
3987 jump_data,
3988 window,
3989 cx,
3990 ));
3991 } else {
3992 result =
3993 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
3994 }
3995
3996 result.into_any_element()
3997 }
3998
3999 Block::ExcerptBoundary { .. } => {
4000 let color = cx.theme().colors().clone();
4001 let mut result = v_flex().id(block_id).w_full();
4002
4003 result = result.child(
4004 h_flex().relative().child(
4005 div()
4006 .top(line_height / 2.)
4007 .absolute()
4008 .w_full()
4009 .h_px()
4010 .bg(color.border_variant),
4011 ),
4012 );
4013
4014 result.into_any()
4015 }
4016
4017 Block::BufferHeader { excerpt, height } => {
4018 let mut result = v_flex().id(block_id).w_full();
4019
4020 if self.should_show_buffer_headers() {
4021 let jump_data = header_jump_data(
4022 snapshot,
4023 block_row_start,
4024 *height,
4025 excerpt,
4026 latest_selection_anchors,
4027 );
4028
4029 if sticky_header_excerpt_id != Some(excerpt.id) {
4030 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
4031
4032 result = result.child(div().pr(editor_margins.right).child(
4033 self.render_buffer_header(
4034 excerpt, false, selected, false, jump_data, window, cx,
4035 ),
4036 ));
4037 } else {
4038 result =
4039 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
4040 }
4041 } else {
4042 result =
4043 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
4044 }
4045
4046 result.into_any()
4047 }
4048
4049 Block::Spacer { height, .. } => {
4050 let indent_guide_padding = indent_guides
4051 .as_ref()
4052 .map(|guides| {
4053 Self::depth_zero_indent_guide_padding_for_row(guides, block_row_start)
4054 })
4055 .unwrap_or(px(0.0));
4056 Self::render_spacer_block(
4057 block_id,
4058 *height,
4059 line_height,
4060 indent_guide_padding,
4061 window,
4062 cx,
4063 )
4064 }
4065 };
4066
4067 // Discover the element's content height, then round up to the nearest multiple of line height.
4068 let preliminary_size = element.layout_as_root(
4069 size(available_width, AvailableSpace::MinContent),
4070 window,
4071 cx,
4072 );
4073 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
4074 let final_size = if preliminary_size.height == quantized_height {
4075 preliminary_size
4076 } else {
4077 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
4078 };
4079 let mut element_height_in_lines = ((final_size.height / line_height).ceil() as u32).max(1);
4080
4081 let effective_row_start = block_row_start.0 as i32 + *block_resize_offset;
4082 debug_assert!(effective_row_start >= 0);
4083 let mut row = DisplayRow(effective_row_start.max(0) as u32);
4084
4085 let mut x_offset = px(0.);
4086 let mut is_block = true;
4087
4088 if let BlockId::Custom(custom_block_id) = block_id
4089 && block.has_height()
4090 {
4091 if block.place_near()
4092 && let Some((x_target, line_width)) = x_position
4093 {
4094 let margin = em_width * 2;
4095 if line_width + final_size.width + margin
4096 < editor_width + editor_margins.gutter.full_width()
4097 && !row_block_types.contains_key(&(row - 1))
4098 && element_height_in_lines == 1
4099 {
4100 x_offset = line_width + margin;
4101 row = row - 1;
4102 is_block = false;
4103 element_height_in_lines = 0;
4104 row_block_types.insert(row, is_block);
4105 } else {
4106 let max_offset =
4107 editor_width + editor_margins.gutter.full_width() - final_size.width;
4108 let min_offset = (x_target + em_width - final_size.width)
4109 .max(editor_margins.gutter.full_width());
4110 x_offset = x_target.min(max_offset).max(min_offset);
4111 }
4112 };
4113 if element_height_in_lines != block.height() {
4114 *block_resize_offset += element_height_in_lines as i32 - block.height() as i32;
4115 resized_blocks.insert(custom_block_id, element_height_in_lines);
4116 }
4117 }
4118 for i in 0..element_height_in_lines {
4119 row_block_types.insert(row + i, is_block);
4120 }
4121
4122 Some((element, final_size, row, x_offset))
4123 }
4124
4125 /// The spacer pattern period must be an even factor of the line height, so
4126 /// that two consecutive spacer blocks can render contiguously without an
4127 /// obvious break in the pattern.
4128 ///
4129 /// Two consecutive spacers can appear when the other side has a diff hunk
4130 /// and a custom block next to each other (e.g. merge conflict buttons).
4131 fn spacer_pattern_period(line_height: f32, target_height: f32) -> f32 {
4132 let k_approx = line_height / (2.0 * target_height);
4133 let k_floor = (k_approx.floor() as u32).max(1);
4134 let k_ceil = (k_approx.ceil() as u32).max(1);
4135
4136 let size_floor = line_height / (2 * k_floor) as f32;
4137 let size_ceil = line_height / (2 * k_ceil) as f32;
4138
4139 if (size_floor - target_height).abs() <= (size_ceil - target_height).abs() {
4140 size_floor
4141 } else {
4142 size_ceil
4143 }
4144 }
4145
4146 pub fn render_spacer_block(
4147 block_id: BlockId,
4148 block_height: u32,
4149 line_height: Pixels,
4150 indent_guide_padding: Pixels,
4151 window: &mut Window,
4152 cx: &App,
4153 ) -> AnyElement {
4154 let target_size = 16.0;
4155 let scale = window.scale_factor();
4156 let pattern_size =
4157 Self::spacer_pattern_period(f32::from(line_height) * scale, target_size * scale);
4158 let color = cx.theme().colors().panel_background;
4159 let background = pattern_slash(color, 2.0, pattern_size - 2.0);
4160
4161 div()
4162 .id(block_id)
4163 .cursor(CursorStyle::Arrow)
4164 .w_full()
4165 .h((block_height as f32) * line_height)
4166 .flex()
4167 .flex_row()
4168 .child(div().flex_shrink_0().w(indent_guide_padding).h_full())
4169 .child(
4170 div()
4171 .flex_1()
4172 .h_full()
4173 .relative()
4174 .overflow_x_hidden()
4175 .child(
4176 div()
4177 .absolute()
4178 .top_0()
4179 .bottom_0()
4180 .right_0()
4181 .left(-indent_guide_padding)
4182 .bg(background),
4183 ),
4184 )
4185 .into_any()
4186 }
4187
4188 fn render_buffer_header(
4189 &self,
4190 for_excerpt: &ExcerptInfo,
4191 is_folded: bool,
4192 is_selected: bool,
4193 is_sticky: bool,
4194 jump_data: JumpData,
4195 window: &mut Window,
4196 cx: &mut App,
4197 ) -> impl IntoElement {
4198 render_buffer_header(
4199 &self.editor,
4200 for_excerpt,
4201 is_folded,
4202 is_selected,
4203 is_sticky,
4204 jump_data,
4205 window,
4206 cx,
4207 )
4208 }
4209
4210 fn render_blocks(
4211 &self,
4212 rows: Range<DisplayRow>,
4213 snapshot: &EditorSnapshot,
4214 hitbox: &Hitbox,
4215 text_hitbox: &Hitbox,
4216 editor_width: Pixels,
4217 scroll_width: &mut Pixels,
4218 editor_margins: &EditorMargins,
4219 em_width: Pixels,
4220 text_x: Pixels,
4221 line_height: Pixels,
4222 line_layouts: &mut [LineWithInvisibles],
4223 selections: &[Selection<Point>],
4224 selected_buffer_ids: &Vec<BufferId>,
4225 latest_selection_anchors: &HashMap<BufferId, Anchor>,
4226 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4227 sticky_header_excerpt_id: Option<ExcerptId>,
4228 indent_guides: &Option<Vec<IndentGuideLayout>>,
4229 window: &mut Window,
4230 cx: &mut App,
4231 ) -> RenderBlocksOutput {
4232 let (fixed_blocks, non_fixed_blocks) = snapshot
4233 .blocks_in_range(rows.clone())
4234 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
4235
4236 let mut focused_block = self
4237 .editor
4238 .update(cx, |editor, _| editor.take_focused_block());
4239 let mut fixed_block_max_width = Pixels::ZERO;
4240 let mut blocks = Vec::new();
4241 let mut spacer_blocks = Vec::new();
4242 let mut resized_blocks = HashMap::default();
4243 let mut row_block_types = HashMap::default();
4244 let mut block_resize_offset: i32 = 0;
4245
4246 for (row, block) in fixed_blocks {
4247 let block_id = block.id();
4248
4249 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4250 focused_block = None;
4251 }
4252
4253 if let Some((element, element_size, row, x_offset)) = self.render_block(
4254 block,
4255 AvailableSpace::MinContent,
4256 block_id,
4257 row,
4258 snapshot,
4259 text_x,
4260 &rows,
4261 line_layouts,
4262 editor_margins,
4263 line_height,
4264 em_width,
4265 text_hitbox,
4266 editor_width,
4267 scroll_width,
4268 &mut resized_blocks,
4269 &mut row_block_types,
4270 selections,
4271 selected_buffer_ids,
4272 latest_selection_anchors,
4273 is_row_soft_wrapped,
4274 sticky_header_excerpt_id,
4275 indent_guides,
4276 &mut block_resize_offset,
4277 window,
4278 cx,
4279 ) {
4280 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
4281 blocks.push(BlockLayout {
4282 id: block_id,
4283 x_offset,
4284 row: Some(row),
4285 element,
4286 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
4287 style: BlockStyle::Fixed,
4288 overlaps_gutter: true,
4289 is_buffer_header: block.is_buffer_header(),
4290 });
4291 }
4292 }
4293
4294 for (row, block) in non_fixed_blocks {
4295 let style = block.style();
4296 let width = match (style, block.place_near()) {
4297 (_, true) => AvailableSpace::MinContent,
4298 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
4299 (BlockStyle::Flex, _) => hitbox
4300 .size
4301 .width
4302 .max(fixed_block_max_width)
4303 .max(
4304 editor_margins.gutter.width + *scroll_width + editor_margins.extended_right,
4305 )
4306 .into(),
4307 (BlockStyle::Spacer, _) => hitbox
4308 .size
4309 .width
4310 .max(fixed_block_max_width)
4311 .max(*scroll_width + editor_margins.extended_right)
4312 .into(),
4313 (BlockStyle::Fixed, _) => unreachable!(),
4314 };
4315 let block_id = block.id();
4316
4317 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4318 focused_block = None;
4319 }
4320
4321 if let Some((element, element_size, row, x_offset)) = self.render_block(
4322 block,
4323 width,
4324 block_id,
4325 row,
4326 snapshot,
4327 text_x,
4328 &rows,
4329 line_layouts,
4330 editor_margins,
4331 line_height,
4332 em_width,
4333 text_hitbox,
4334 editor_width,
4335 scroll_width,
4336 &mut resized_blocks,
4337 &mut row_block_types,
4338 selections,
4339 selected_buffer_ids,
4340 latest_selection_anchors,
4341 is_row_soft_wrapped,
4342 sticky_header_excerpt_id,
4343 indent_guides,
4344 &mut block_resize_offset,
4345 window,
4346 cx,
4347 ) {
4348 let layout = BlockLayout {
4349 id: block_id,
4350 x_offset,
4351 row: Some(row),
4352 element,
4353 available_space: size(width, element_size.height.into()),
4354 style,
4355 overlaps_gutter: !block.place_near() && style != BlockStyle::Spacer,
4356 is_buffer_header: block.is_buffer_header(),
4357 };
4358 if style == BlockStyle::Spacer {
4359 spacer_blocks.push(layout);
4360 } else {
4361 blocks.push(layout);
4362 }
4363 }
4364 }
4365
4366 if let Some(focused_block) = focused_block
4367 && let Some(focus_handle) = focused_block.focus_handle.upgrade()
4368 && focus_handle.is_focused(window)
4369 && let Some(block) = snapshot.block_for_id(focused_block.id)
4370 {
4371 let style = block.style();
4372 let width = match style {
4373 BlockStyle::Fixed => AvailableSpace::MinContent,
4374 BlockStyle::Flex => {
4375 AvailableSpace::Definite(hitbox.size.width.max(fixed_block_max_width).max(
4376 editor_margins.gutter.width + *scroll_width + editor_margins.extended_right,
4377 ))
4378 }
4379 BlockStyle::Spacer => AvailableSpace::Definite(
4380 hitbox
4381 .size
4382 .width
4383 .max(fixed_block_max_width)
4384 .max(*scroll_width + editor_margins.extended_right),
4385 ),
4386 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
4387 };
4388
4389 if let Some((element, element_size, _, x_offset)) = self.render_block(
4390 &block,
4391 width,
4392 focused_block.id,
4393 rows.end,
4394 snapshot,
4395 text_x,
4396 &rows,
4397 line_layouts,
4398 editor_margins,
4399 line_height,
4400 em_width,
4401 text_hitbox,
4402 editor_width,
4403 scroll_width,
4404 &mut resized_blocks,
4405 &mut row_block_types,
4406 selections,
4407 selected_buffer_ids,
4408 latest_selection_anchors,
4409 is_row_soft_wrapped,
4410 sticky_header_excerpt_id,
4411 indent_guides,
4412 &mut block_resize_offset,
4413 window,
4414 cx,
4415 ) {
4416 blocks.push(BlockLayout {
4417 id: block.id(),
4418 x_offset,
4419 row: None,
4420 element,
4421 available_space: size(width, element_size.height.into()),
4422 style,
4423 overlaps_gutter: true,
4424 is_buffer_header: block.is_buffer_header(),
4425 });
4426 }
4427 }
4428
4429 if resized_blocks.is_empty() {
4430 *scroll_width =
4431 (*scroll_width).max(fixed_block_max_width - editor_margins.gutter.width);
4432 }
4433
4434 RenderBlocksOutput {
4435 non_spacer_blocks: blocks,
4436 spacer_blocks,
4437 row_block_types,
4438 resized_blocks: (!resized_blocks.is_empty()).then_some(resized_blocks),
4439 }
4440 }
4441
4442 fn layout_blocks(
4443 &self,
4444 blocks: &mut Vec<BlockLayout>,
4445 hitbox: &Hitbox,
4446 gutter_hitbox: &Hitbox,
4447 line_height: Pixels,
4448 scroll_position: gpui::Point<ScrollOffset>,
4449 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4450 editor_margins: &EditorMargins,
4451 window: &mut Window,
4452 cx: &mut App,
4453 ) {
4454 for block in blocks {
4455 let mut origin = if let Some(row) = block.row {
4456 hitbox.origin
4457 + point(
4458 block.x_offset,
4459 Pixels::from(
4460 (row.as_f64() - scroll_position.y)
4461 * ScrollPixelOffset::from(line_height),
4462 ),
4463 )
4464 } else {
4465 // Position the block outside the visible area
4466 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
4467 };
4468
4469 if block.style == BlockStyle::Spacer {
4470 origin += point(
4471 gutter_hitbox.size.width + editor_margins.gutter.margin,
4472 Pixels::ZERO,
4473 );
4474 }
4475
4476 if !matches!(block.style, BlockStyle::Sticky) {
4477 origin += point(Pixels::from(-scroll_pixel_position.x), Pixels::ZERO);
4478 }
4479
4480 let focus_handle =
4481 block
4482 .element
4483 .prepaint_as_root(origin, block.available_space, window, cx);
4484
4485 if let Some(focus_handle) = focus_handle {
4486 self.editor.update(cx, |editor, _cx| {
4487 editor.set_focused_block(FocusedBlock {
4488 id: block.id,
4489 focus_handle: focus_handle.downgrade(),
4490 });
4491 });
4492 }
4493 }
4494 }
4495
4496 fn layout_sticky_buffer_header(
4497 &self,
4498 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
4499 scroll_position: gpui::Point<ScrollOffset>,
4500 line_height: Pixels,
4501 right_margin: Pixels,
4502 snapshot: &EditorSnapshot,
4503 hitbox: &Hitbox,
4504 selected_buffer_ids: &Vec<BufferId>,
4505 blocks: &[BlockLayout],
4506 latest_selection_anchors: &HashMap<BufferId, Anchor>,
4507 window: &mut Window,
4508 cx: &mut App,
4509 ) -> AnyElement {
4510 let jump_data = header_jump_data(
4511 snapshot,
4512 DisplayRow(scroll_position.y as u32),
4513 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
4514 excerpt,
4515 latest_selection_anchors,
4516 );
4517
4518 let editor_bg_color = cx.theme().colors().editor_background;
4519
4520 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
4521
4522 let available_width = hitbox.bounds.size.width - right_margin;
4523
4524 let mut header = v_flex()
4525 .w_full()
4526 .relative()
4527 .child(
4528 div()
4529 .w(available_width)
4530 .h(FILE_HEADER_HEIGHT as f32 * line_height)
4531 .bg(linear_gradient(
4532 0.,
4533 linear_color_stop(editor_bg_color.opacity(0.), 0.),
4534 linear_color_stop(editor_bg_color, 0.6),
4535 ))
4536 .absolute()
4537 .top_0(),
4538 )
4539 .child(
4540 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
4541 .into_any_element(),
4542 )
4543 .into_any_element();
4544
4545 let mut origin = hitbox.origin;
4546 // Move floating header up to avoid colliding with the next buffer header.
4547 for block in blocks.iter() {
4548 if !block.is_buffer_header {
4549 continue;
4550 }
4551
4552 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position.y as u32) else {
4553 continue;
4554 };
4555
4556 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
4557 let offset = scroll_position.y - max_row as f64;
4558
4559 if offset > 0.0 {
4560 origin.y -= Pixels::from(offset * ScrollPixelOffset::from(line_height));
4561 }
4562 break;
4563 }
4564
4565 let size = size(
4566 AvailableSpace::Definite(available_width),
4567 AvailableSpace::MinContent,
4568 );
4569
4570 header.prepaint_as_root(origin, size, window, cx);
4571
4572 header
4573 }
4574
4575 fn layout_sticky_headers(
4576 &self,
4577 snapshot: &EditorSnapshot,
4578 editor_width: Pixels,
4579 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4580 line_height: Pixels,
4581 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4582 content_origin: gpui::Point<Pixels>,
4583 gutter_dimensions: &GutterDimensions,
4584 gutter_hitbox: &Hitbox,
4585 text_hitbox: &Hitbox,
4586 relative_line_numbers: RelativeLineNumbers,
4587 relative_to: Option<DisplayRow>,
4588 window: &mut Window,
4589 cx: &mut App,
4590 ) -> Option<StickyHeaders> {
4591 let show_line_numbers = snapshot
4592 .show_line_numbers
4593 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
4594
4595 let rows = Self::sticky_headers(self.editor.read(cx), snapshot);
4596
4597 let mut lines = Vec::<StickyHeaderLine>::new();
4598
4599 for StickyHeader {
4600 item,
4601 sticky_row,
4602 start_point,
4603 offset,
4604 } in rows.into_iter().rev()
4605 {
4606 let line = layout_line(
4607 sticky_row,
4608 snapshot,
4609 &self.style,
4610 editor_width,
4611 is_row_soft_wrapped,
4612 window,
4613 cx,
4614 );
4615
4616 let line_number = show_line_numbers.then(|| {
4617 let start_display_row = start_point.to_display_point(snapshot).row();
4618 let relative_number = relative_to
4619 .filter(|_| relative_line_numbers != RelativeLineNumbers::Disabled)
4620 .map(|base| {
4621 snapshot.relative_line_delta(
4622 base,
4623 start_display_row,
4624 relative_line_numbers == RelativeLineNumbers::Wrapped,
4625 )
4626 });
4627 let number = relative_number
4628 .filter(|&delta| delta != 0)
4629 .map(|delta| delta.unsigned_abs() as u32)
4630 .unwrap_or(start_point.row + 1);
4631 let color = cx.theme().colors().editor_line_number;
4632 self.shape_line_number(SharedString::from(number.to_string()), color, window)
4633 });
4634
4635 lines.push(StickyHeaderLine::new(
4636 sticky_row,
4637 line_height * offset as f32,
4638 line,
4639 line_number,
4640 item.range.start,
4641 line_height,
4642 scroll_pixel_position,
4643 content_origin,
4644 gutter_hitbox,
4645 text_hitbox,
4646 window,
4647 cx,
4648 ));
4649 }
4650
4651 lines.reverse();
4652 if lines.is_empty() {
4653 return None;
4654 }
4655
4656 Some(StickyHeaders {
4657 lines,
4658 gutter_background: cx.theme().colors().editor_gutter_background,
4659 content_background: self.style.background,
4660 gutter_right_padding: gutter_dimensions.right_padding,
4661 })
4662 }
4663
4664 pub(crate) fn sticky_headers(editor: &Editor, snapshot: &EditorSnapshot) -> Vec<StickyHeader> {
4665 let scroll_top = snapshot.scroll_position().y;
4666
4667 let mut end_rows = Vec::<DisplayRow>::new();
4668 let mut rows = Vec::<StickyHeader>::new();
4669
4670 for item in editor.sticky_headers.iter().flatten() {
4671 let start_point = item.range.start.to_point(snapshot.buffer_snapshot());
4672 let end_point = item.range.end.to_point(snapshot.buffer_snapshot());
4673
4674 let sticky_row = snapshot
4675 .display_snapshot
4676 .point_to_display_point(start_point, Bias::Left)
4677 .row();
4678 let end_row = snapshot
4679 .display_snapshot
4680 .point_to_display_point(end_point, Bias::Left)
4681 .row();
4682 let max_sticky_row = end_row.previous_row();
4683 if max_sticky_row <= sticky_row {
4684 continue;
4685 }
4686
4687 while end_rows
4688 .last()
4689 .is_some_and(|&last_end| last_end <= sticky_row)
4690 {
4691 end_rows.pop();
4692 }
4693 let depth = end_rows.len();
4694 let adjusted_scroll_top = scroll_top + depth as f64;
4695
4696 if sticky_row.as_f64() >= adjusted_scroll_top || end_row.as_f64() <= adjusted_scroll_top
4697 {
4698 continue;
4699 }
4700
4701 let max_scroll_offset = max_sticky_row.as_f64() - scroll_top;
4702 let offset = (depth as f64).min(max_scroll_offset);
4703
4704 end_rows.push(end_row);
4705 rows.push(StickyHeader {
4706 item: item.clone(),
4707 sticky_row,
4708 start_point,
4709 offset,
4710 });
4711 }
4712
4713 rows
4714 }
4715
4716 fn layout_cursor_popovers(
4717 &self,
4718 line_height: Pixels,
4719 text_hitbox: &Hitbox,
4720 content_origin: gpui::Point<Pixels>,
4721 right_margin: Pixels,
4722 start_row: DisplayRow,
4723 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4724 line_layouts: &[LineWithInvisibles],
4725 cursor: DisplayPoint,
4726 cursor_point: Point,
4727 style: &EditorStyle,
4728 window: &mut Window,
4729 cx: &mut App,
4730 ) -> Option<ContextMenuLayout> {
4731 let mut min_menu_height = Pixels::ZERO;
4732 let mut max_menu_height = Pixels::ZERO;
4733 let mut height_above_menu = Pixels::ZERO;
4734 let height_below_menu = Pixels::ZERO;
4735 let mut edit_prediction_popover_visible = false;
4736 let mut context_menu_visible = false;
4737 let context_menu_placement;
4738
4739 {
4740 let editor = self.editor.read(cx);
4741 if editor.edit_prediction_visible_in_cursor_popover(editor.has_active_edit_prediction())
4742 {
4743 height_above_menu +=
4744 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
4745 edit_prediction_popover_visible = true;
4746 }
4747
4748 if editor.context_menu_visible()
4749 && let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin()
4750 {
4751 let (min_height_in_lines, max_height_in_lines) = editor
4752 .context_menu_options
4753 .as_ref()
4754 .map_or((3, 12), |options| {
4755 (options.min_entries_visible, options.max_entries_visible)
4756 });
4757
4758 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4759 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4760 context_menu_visible = true;
4761 }
4762 context_menu_placement = editor
4763 .context_menu_options
4764 .as_ref()
4765 .and_then(|options| options.placement.clone());
4766 }
4767
4768 let visible = edit_prediction_popover_visible || context_menu_visible;
4769 if !visible {
4770 return None;
4771 }
4772
4773 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
4774 let target_position = content_origin
4775 + gpui::Point {
4776 x: cmp::max(
4777 px(0.),
4778 Pixels::from(
4779 ScrollPixelOffset::from(
4780 cursor_row_layout.x_for_index(cursor.column() as usize),
4781 ) - scroll_pixel_position.x,
4782 ),
4783 ),
4784 y: cmp::max(
4785 px(0.),
4786 Pixels::from(
4787 cursor.row().next_row().as_f64() * ScrollPixelOffset::from(line_height)
4788 - scroll_pixel_position.y,
4789 ),
4790 ),
4791 };
4792
4793 let viewport_bounds =
4794 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4795 right: -right_margin - MENU_GAP,
4796 ..Default::default()
4797 });
4798
4799 let min_height = height_above_menu + min_menu_height + height_below_menu;
4800 let max_height = height_above_menu + max_menu_height + height_below_menu;
4801 let (laid_out_popovers, y_flipped) = self.layout_popovers_above_or_below_line(
4802 target_position,
4803 line_height,
4804 min_height,
4805 max_height,
4806 context_menu_placement,
4807 text_hitbox,
4808 viewport_bounds,
4809 window,
4810 cx,
4811 |height, max_width_for_stable_x, y_flipped, window, cx| {
4812 // First layout the menu to get its size - others can be at least this wide.
4813 let context_menu = if context_menu_visible {
4814 let menu_height = if y_flipped {
4815 height - height_below_menu
4816 } else {
4817 height - height_above_menu
4818 };
4819 let mut element = self
4820 .render_context_menu(line_height, menu_height, window, cx)
4821 .expect("Visible context menu should always render.");
4822 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4823 Some((CursorPopoverType::CodeContextMenu, element, size))
4824 } else {
4825 None
4826 };
4827 let min_width = context_menu
4828 .as_ref()
4829 .map_or(px(0.), |(_, _, size)| size.width);
4830 let max_width = max_width_for_stable_x.max(
4831 context_menu
4832 .as_ref()
4833 .map_or(px(0.), |(_, _, size)| size.width),
4834 );
4835
4836 let edit_prediction = if edit_prediction_popover_visible {
4837 self.editor.update(cx, move |editor, cx| {
4838 let mut element = editor.render_edit_prediction_cursor_popover(
4839 min_width,
4840 max_width,
4841 cursor_point,
4842 style,
4843 window,
4844 cx,
4845 )?;
4846 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4847 Some((CursorPopoverType::EditPrediction, element, size))
4848 })
4849 } else {
4850 None
4851 };
4852 vec![edit_prediction, context_menu]
4853 .into_iter()
4854 .flatten()
4855 .collect::<Vec<_>>()
4856 },
4857 )?;
4858
4859 let (menu_ix, (_, menu_bounds)) = laid_out_popovers
4860 .iter()
4861 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))?;
4862 let last_ix = laid_out_popovers.len() - 1;
4863 let menu_is_last = menu_ix == last_ix;
4864 let first_popover_bounds = laid_out_popovers[0].1;
4865 let last_popover_bounds = laid_out_popovers[last_ix].1;
4866
4867 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
4868 // right, and otherwise it goes below or to the right.
4869 let mut target_bounds = Bounds::from_corners(
4870 first_popover_bounds.origin,
4871 last_popover_bounds.bottom_right(),
4872 );
4873 target_bounds.size.width = menu_bounds.size.width;
4874
4875 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
4876 // based on this is preferred for layout stability.
4877 let mut max_target_bounds = target_bounds;
4878 max_target_bounds.size.height = max_height;
4879 if y_flipped {
4880 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
4881 }
4882
4883 // Add spacing around `target_bounds` and `max_target_bounds`.
4884 let mut extend_amount = Edges::all(MENU_GAP);
4885 if y_flipped {
4886 extend_amount.bottom = line_height;
4887 } else {
4888 extend_amount.top = line_height;
4889 }
4890 let target_bounds = target_bounds.extend(extend_amount);
4891 let max_target_bounds = max_target_bounds.extend(extend_amount);
4892
4893 let must_place_above_or_below =
4894 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
4895 laid_out_popovers[menu_ix + 1..]
4896 .iter()
4897 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
4898 } else {
4899 false
4900 };
4901
4902 let aside_bounds = self.layout_context_menu_aside(
4903 y_flipped,
4904 *menu_bounds,
4905 target_bounds,
4906 max_target_bounds,
4907 max_menu_height,
4908 must_place_above_or_below,
4909 text_hitbox,
4910 viewport_bounds,
4911 window,
4912 cx,
4913 );
4914
4915 if let Some(menu_bounds) = laid_out_popovers.iter().find_map(|(popover_type, bounds)| {
4916 if matches!(popover_type, CursorPopoverType::CodeContextMenu) {
4917 Some(*bounds)
4918 } else {
4919 None
4920 }
4921 }) {
4922 let bounds = if let Some(aside_bounds) = aside_bounds {
4923 menu_bounds.union(&aside_bounds)
4924 } else {
4925 menu_bounds
4926 };
4927 return Some(ContextMenuLayout { y_flipped, bounds });
4928 }
4929
4930 None
4931 }
4932
4933 fn layout_gutter_menu(
4934 &self,
4935 line_height: Pixels,
4936 text_hitbox: &Hitbox,
4937 content_origin: gpui::Point<Pixels>,
4938 right_margin: Pixels,
4939 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4940 gutter_overshoot: Pixels,
4941 window: &mut Window,
4942 cx: &mut App,
4943 ) {
4944 let editor = self.editor.read(cx);
4945 if !editor.context_menu_visible() {
4946 return;
4947 }
4948 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
4949 editor.context_menu_origin()
4950 else {
4951 return;
4952 };
4953 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
4954 // indicator than just a plain first column of the text field.
4955 let target_position = content_origin
4956 + gpui::Point {
4957 x: -gutter_overshoot,
4958 y: Pixels::from(
4959 gutter_row.next_row().as_f64() * ScrollPixelOffset::from(line_height)
4960 - scroll_pixel_position.y,
4961 ),
4962 };
4963
4964 let (min_height_in_lines, max_height_in_lines) = editor
4965 .context_menu_options
4966 .as_ref()
4967 .map_or((3, 12), |options| {
4968 (options.min_entries_visible, options.max_entries_visible)
4969 });
4970
4971 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4972 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4973 let viewport_bounds =
4974 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4975 right: -right_margin - MENU_GAP,
4976 ..Default::default()
4977 });
4978 self.layout_popovers_above_or_below_line(
4979 target_position,
4980 line_height,
4981 min_height,
4982 max_height,
4983 editor
4984 .context_menu_options
4985 .as_ref()
4986 .and_then(|options| options.placement.clone()),
4987 text_hitbox,
4988 viewport_bounds,
4989 window,
4990 cx,
4991 move |height, _max_width_for_stable_x, _, window, cx| {
4992 let mut element = self
4993 .render_context_menu(line_height, height, window, cx)
4994 .expect("Visible context menu should always render.");
4995 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4996 vec![(CursorPopoverType::CodeContextMenu, element, size)]
4997 },
4998 );
4999 }
5000
5001 fn layout_popovers_above_or_below_line(
5002 &self,
5003 target_position: gpui::Point<Pixels>,
5004 line_height: Pixels,
5005 min_height: Pixels,
5006 max_height: Pixels,
5007 placement: Option<ContextMenuPlacement>,
5008 text_hitbox: &Hitbox,
5009 viewport_bounds: Bounds<Pixels>,
5010 window: &mut Window,
5011 cx: &mut App,
5012 make_sized_popovers: impl FnOnce(
5013 Pixels,
5014 Pixels,
5015 bool,
5016 &mut Window,
5017 &mut App,
5018 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
5019 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
5020 let text_style = TextStyleRefinement {
5021 line_height: Some(DefiniteLength::Fraction(
5022 BufferLineHeight::Comfortable.value(),
5023 )),
5024 ..Default::default()
5025 };
5026 window.with_text_style(Some(text_style), |window| {
5027 // If the max height won't fit below and there is more space above, put it above the line.
5028 let bottom_y_when_flipped = target_position.y - line_height;
5029 let available_above = bottom_y_when_flipped - text_hitbox.top();
5030 let available_below = text_hitbox.bottom() - target_position.y;
5031 let y_overflows_below = max_height > available_below;
5032 let mut y_flipped = match placement {
5033 Some(ContextMenuPlacement::Above) => true,
5034 Some(ContextMenuPlacement::Below) => false,
5035 None => y_overflows_below && available_above > available_below,
5036 };
5037 let mut height = cmp::min(
5038 max_height,
5039 if y_flipped {
5040 available_above
5041 } else {
5042 available_below
5043 },
5044 );
5045
5046 // If the min height doesn't fit within text bounds, instead fit within the window.
5047 if height < min_height {
5048 let available_above = bottom_y_when_flipped;
5049 let available_below = viewport_bounds.bottom() - target_position.y;
5050 let (y_flipped_override, height_override) = match placement {
5051 Some(ContextMenuPlacement::Above) => {
5052 (true, cmp::min(available_above, min_height))
5053 }
5054 Some(ContextMenuPlacement::Below) => {
5055 (false, cmp::min(available_below, min_height))
5056 }
5057 None => {
5058 if available_below > min_height {
5059 (false, min_height)
5060 } else if available_above > min_height {
5061 (true, min_height)
5062 } else if available_above > available_below {
5063 (true, available_above)
5064 } else {
5065 (false, available_below)
5066 }
5067 }
5068 };
5069 y_flipped = y_flipped_override;
5070 height = height_override;
5071 }
5072
5073 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
5074
5075 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
5076 // for very narrow windows.
5077 let popovers =
5078 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
5079 if popovers.is_empty() {
5080 return None;
5081 }
5082
5083 let max_width = popovers
5084 .iter()
5085 .map(|(_, _, size)| size.width)
5086 .max()
5087 .unwrap_or_default();
5088
5089 let mut current_position = gpui::Point {
5090 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
5091 // overflow. Include space for the scrollbar.
5092 x: target_position
5093 .x
5094 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
5095 y: if y_flipped {
5096 bottom_y_when_flipped
5097 } else {
5098 target_position.y
5099 },
5100 };
5101
5102 let mut laid_out_popovers = popovers
5103 .into_iter()
5104 .map(|(popover_type, element, size)| {
5105 if y_flipped {
5106 current_position.y -= size.height;
5107 }
5108 let position = current_position;
5109 window.defer_draw(element, current_position, 1, None);
5110 if !y_flipped {
5111 current_position.y += size.height + MENU_GAP;
5112 } else {
5113 current_position.y -= MENU_GAP;
5114 }
5115 (popover_type, Bounds::new(position, size))
5116 })
5117 .collect::<Vec<_>>();
5118
5119 if y_flipped {
5120 laid_out_popovers.reverse();
5121 }
5122
5123 Some((laid_out_popovers, y_flipped))
5124 })
5125 }
5126
5127 fn layout_context_menu_aside(
5128 &self,
5129 y_flipped: bool,
5130 menu_bounds: Bounds<Pixels>,
5131 target_bounds: Bounds<Pixels>,
5132 max_target_bounds: Bounds<Pixels>,
5133 max_height: Pixels,
5134 must_place_above_or_below: bool,
5135 text_hitbox: &Hitbox,
5136 viewport_bounds: Bounds<Pixels>,
5137 window: &mut Window,
5138 cx: &mut App,
5139 ) -> Option<Bounds<Pixels>> {
5140 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
5141 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
5142 && !must_place_above_or_below
5143 {
5144 let max_width = cmp::min(
5145 available_within_viewport.right - px(1.),
5146 MENU_ASIDE_MAX_WIDTH,
5147 );
5148 let mut aside = self.render_context_menu_aside(
5149 size(max_width, max_height - POPOVER_Y_PADDING),
5150 window,
5151 cx,
5152 )?;
5153 let size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5154 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
5155 Some((aside, right_position, size))
5156 } else {
5157 let max_size = size(
5158 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
5159 // won't be needed here.
5160 cmp::min(
5161 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
5162 viewport_bounds.right(),
5163 ),
5164 cmp::min(
5165 max_height,
5166 cmp::max(
5167 available_within_viewport.top,
5168 available_within_viewport.bottom,
5169 ),
5170 ) - POPOVER_Y_PADDING,
5171 );
5172 let mut aside = self.render_context_menu_aside(max_size, window, cx)?;
5173 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5174
5175 let top_position = point(
5176 menu_bounds.origin.x,
5177 target_bounds.top() - actual_size.height,
5178 );
5179 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
5180
5181 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
5182 // Prefer to fit on the same side of the line as the menu, then on the other side of
5183 // the line.
5184 if !y_flipped && wanted.height < available.bottom {
5185 Some(bottom_position)
5186 } else if !y_flipped && wanted.height < available.top {
5187 Some(top_position)
5188 } else if y_flipped && wanted.height < available.top {
5189 Some(top_position)
5190 } else if y_flipped && wanted.height < available.bottom {
5191 Some(bottom_position)
5192 } else {
5193 None
5194 }
5195 };
5196
5197 // Prefer choosing a direction using max sizes rather than actual size for stability.
5198 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
5199 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
5200 let aside_position = fit_within(available_within_text, wanted)
5201 // Fallback: fit max size in window.
5202 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
5203 // Fallback: fit actual size in window.
5204 .or_else(|| fit_within(available_within_viewport, actual_size));
5205
5206 aside_position.map(|position| (aside, position, actual_size))
5207 };
5208
5209 // Skip drawing if it doesn't fit anywhere.
5210 if let Some((aside, position, size)) = positioned_aside {
5211 let aside_bounds = Bounds::new(position, size);
5212 window.defer_draw(aside, position, 2, None);
5213 return Some(aside_bounds);
5214 }
5215
5216 None
5217 }
5218
5219 fn render_context_menu(
5220 &self,
5221 line_height: Pixels,
5222 height: Pixels,
5223 window: &mut Window,
5224 cx: &mut App,
5225 ) -> Option<AnyElement> {
5226 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
5227 self.editor.update(cx, |editor, cx| {
5228 editor.render_context_menu(max_height_in_lines, window, cx)
5229 })
5230 }
5231
5232 fn render_context_menu_aside(
5233 &self,
5234 max_size: Size<Pixels>,
5235 window: &mut Window,
5236 cx: &mut App,
5237 ) -> Option<AnyElement> {
5238 if max_size.width < px(100.) || max_size.height < px(12.) {
5239 None
5240 } else {
5241 self.editor.update(cx, |editor, cx| {
5242 editor.render_context_menu_aside(max_size, window, cx)
5243 })
5244 }
5245 }
5246
5247 fn layout_mouse_context_menu(
5248 &self,
5249 editor_snapshot: &EditorSnapshot,
5250 visible_range: Range<DisplayRow>,
5251 content_origin: gpui::Point<Pixels>,
5252 window: &mut Window,
5253 cx: &mut App,
5254 ) -> Option<AnyElement> {
5255 let position = self.editor.update(cx, |editor, cx| {
5256 let visible_start_point = editor.display_to_pixel_point(
5257 DisplayPoint::new(visible_range.start, 0),
5258 editor_snapshot,
5259 window,
5260 cx,
5261 )?;
5262 let visible_end_point = editor.display_to_pixel_point(
5263 DisplayPoint::new(visible_range.end, 0),
5264 editor_snapshot,
5265 window,
5266 cx,
5267 )?;
5268
5269 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5270 let (source_display_point, position) = match mouse_context_menu.position {
5271 MenuPosition::PinnedToScreen(point) => (None, point),
5272 MenuPosition::PinnedToEditor { source, offset } => {
5273 let source_display_point = source.to_display_point(editor_snapshot);
5274 let source_point =
5275 editor.to_pixel_point(source, editor_snapshot, window, cx)?;
5276 let position = content_origin + source_point + offset;
5277 (Some(source_display_point), position)
5278 }
5279 };
5280
5281 let source_included = source_display_point.is_none_or(|source_display_point| {
5282 visible_range
5283 .to_inclusive()
5284 .contains(&source_display_point.row())
5285 });
5286 let position_included =
5287 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
5288 if !source_included && !position_included {
5289 None
5290 } else {
5291 Some(position)
5292 }
5293 })?;
5294
5295 let text_style = TextStyleRefinement {
5296 line_height: Some(DefiniteLength::Fraction(
5297 BufferLineHeight::Comfortable.value(),
5298 )),
5299 ..Default::default()
5300 };
5301 window.with_text_style(Some(text_style), |window| {
5302 let mut element = self.editor.read_with(cx, |editor, _| {
5303 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5304 let context_menu = mouse_context_menu.context_menu.clone();
5305
5306 Some(
5307 deferred(
5308 anchored()
5309 .position(position)
5310 .child(context_menu)
5311 .anchor(Corner::TopLeft)
5312 .snap_to_window_with_margin(px(8.)),
5313 )
5314 .with_priority(1)
5315 .into_any(),
5316 )
5317 })?;
5318
5319 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
5320 Some(element)
5321 })
5322 }
5323
5324 fn layout_hover_popovers(
5325 &self,
5326 snapshot: &EditorSnapshot,
5327 hitbox: &Hitbox,
5328 visible_display_row_range: Range<DisplayRow>,
5329 content_origin: gpui::Point<Pixels>,
5330 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5331 line_layouts: &[LineWithInvisibles],
5332 line_height: Pixels,
5333 em_width: Pixels,
5334 context_menu_layout: Option<ContextMenuLayout>,
5335 window: &mut Window,
5336 cx: &mut App,
5337 ) {
5338 struct MeasuredHoverPopover {
5339 element: AnyElement,
5340 size: Size<Pixels>,
5341 horizontal_offset: Pixels,
5342 }
5343
5344 let max_size = size(
5345 (120. * em_width) // Default size
5346 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5347 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5348 (16. * line_height) // Default size
5349 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5350 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5351 );
5352
5353 // Don't show hover popovers when context menu is open to avoid overlap
5354 let has_context_menu = self.editor.read(cx).mouse_context_menu.is_some();
5355 if has_context_menu {
5356 return;
5357 }
5358
5359 let hover_popovers = self.editor.update(cx, |editor, cx| {
5360 editor.hover_state.render(
5361 snapshot,
5362 visible_display_row_range.clone(),
5363 max_size,
5364 &editor.text_layout_details(window, cx),
5365 window,
5366 cx,
5367 )
5368 });
5369 let Some((popover_position, hover_popovers)) = hover_popovers else {
5370 return;
5371 };
5372
5373 // This is safe because we check on layout whether the required row is available
5374 let hovered_row_layout = &line_layouts[popover_position
5375 .row()
5376 .minus(visible_display_row_range.start)
5377 as usize];
5378
5379 // Compute Hovered Point
5380 let x = hovered_row_layout.x_for_index(popover_position.column() as usize)
5381 - Pixels::from(scroll_pixel_position.x);
5382 let y = Pixels::from(
5383 popover_position.row().as_f64() * ScrollPixelOffset::from(line_height)
5384 - scroll_pixel_position.y,
5385 );
5386 let hovered_point = content_origin + point(x, y);
5387
5388 let mut overall_height = Pixels::ZERO;
5389 let mut measured_hover_popovers = Vec::new();
5390 for (position, mut hover_popover) in hover_popovers.into_iter().with_position() {
5391 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
5392 let horizontal_offset =
5393 (hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
5394 .min(Pixels::ZERO);
5395 match position {
5396 itertools::Position::Middle | itertools::Position::Last => {
5397 overall_height += HOVER_POPOVER_GAP
5398 }
5399 _ => {}
5400 }
5401 overall_height += size.height;
5402 measured_hover_popovers.push(MeasuredHoverPopover {
5403 element: hover_popover,
5404 size,
5405 horizontal_offset,
5406 });
5407 }
5408
5409 fn draw_occluder(
5410 width: Pixels,
5411 origin: gpui::Point<Pixels>,
5412 window: &mut Window,
5413 cx: &mut App,
5414 ) {
5415 let mut occlusion = div()
5416 .size_full()
5417 .occlude()
5418 .on_mouse_move(|_, _, cx| cx.stop_propagation())
5419 .into_any_element();
5420 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
5421 window.defer_draw(occlusion, origin, 2, None);
5422 }
5423
5424 fn place_popovers_above(
5425 hovered_point: gpui::Point<Pixels>,
5426 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5427 window: &mut Window,
5428 cx: &mut App,
5429 ) {
5430 let mut current_y = hovered_point.y;
5431 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5432 let size = popover.size;
5433 let popover_origin = point(
5434 hovered_point.x + popover.horizontal_offset,
5435 current_y - size.height,
5436 );
5437
5438 window.defer_draw(popover.element, popover_origin, 2, None);
5439 if position != itertools::Position::Last {
5440 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
5441 draw_occluder(size.width, origin, window, cx);
5442 }
5443
5444 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5445 }
5446 }
5447
5448 fn place_popovers_below(
5449 hovered_point: gpui::Point<Pixels>,
5450 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5451 line_height: Pixels,
5452 window: &mut Window,
5453 cx: &mut App,
5454 ) {
5455 let mut current_y = hovered_point.y + line_height;
5456 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5457 let size = popover.size;
5458 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5459
5460 window.defer_draw(popover.element, popover_origin, 2, None);
5461 if position != itertools::Position::Last {
5462 let origin = point(popover_origin.x, popover_origin.y + size.height);
5463 draw_occluder(size.width, origin, window, cx);
5464 }
5465
5466 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5467 }
5468 }
5469
5470 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5471 context_menu_layout
5472 .as_ref()
5473 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5474 };
5475
5476 let can_place_above = {
5477 let mut bounds_above = Vec::new();
5478 let mut current_y = hovered_point.y;
5479 for popover in &measured_hover_popovers {
5480 let size = popover.size;
5481 let popover_origin = point(
5482 hovered_point.x + popover.horizontal_offset,
5483 current_y - size.height,
5484 );
5485 bounds_above.push(Bounds::new(popover_origin, size));
5486 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5487 }
5488 bounds_above
5489 .iter()
5490 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5491 };
5492
5493 let can_place_below = || {
5494 let mut bounds_below = Vec::new();
5495 let mut current_y = hovered_point.y + line_height;
5496 for popover in &measured_hover_popovers {
5497 let size = popover.size;
5498 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5499 bounds_below.push(Bounds::new(popover_origin, size));
5500 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5501 }
5502 bounds_below
5503 .iter()
5504 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5505 };
5506
5507 if can_place_above {
5508 // try placing above hovered point
5509 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5510 } else if can_place_below() {
5511 // try placing below hovered point
5512 place_popovers_below(
5513 hovered_point,
5514 measured_hover_popovers,
5515 line_height,
5516 window,
5517 cx,
5518 );
5519 } else {
5520 // try to place popovers around the context menu
5521 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5522 let total_width = measured_hover_popovers
5523 .iter()
5524 .map(|p| p.size.width)
5525 .max()
5526 .unwrap_or(Pixels::ZERO);
5527 let y_for_horizontal_positioning = if menu.y_flipped {
5528 menu.bounds.bottom() - overall_height
5529 } else {
5530 menu.bounds.top()
5531 };
5532 let possible_origins = vec![
5533 // left of context menu
5534 point(
5535 menu.bounds.left() - total_width - HOVER_POPOVER_GAP,
5536 y_for_horizontal_positioning,
5537 ),
5538 // right of context menu
5539 point(
5540 menu.bounds.right() + HOVER_POPOVER_GAP,
5541 y_for_horizontal_positioning,
5542 ),
5543 // top of context menu
5544 point(
5545 menu.bounds.left(),
5546 menu.bounds.top() - overall_height - HOVER_POPOVER_GAP,
5547 ),
5548 // bottom of context menu
5549 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5550 ];
5551 possible_origins.into_iter().find(|&origin| {
5552 Bounds::new(origin, size(total_width, overall_height))
5553 .is_contained_within(hitbox)
5554 })
5555 });
5556 if let Some(origin) = origin_surrounding_menu {
5557 let mut current_y = origin.y;
5558 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5559 let size = popover.size;
5560 let popover_origin = point(origin.x, current_y);
5561
5562 window.defer_draw(popover.element, popover_origin, 2, None);
5563 if position != itertools::Position::Last {
5564 let origin = point(popover_origin.x, popover_origin.y + size.height);
5565 draw_occluder(size.width, origin, window, cx);
5566 }
5567
5568 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5569 }
5570 } else {
5571 // fallback to existing above/below cursor logic
5572 // this might overlap menu or overflow in rare case
5573 if can_place_above {
5574 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5575 } else {
5576 place_popovers_below(
5577 hovered_point,
5578 measured_hover_popovers,
5579 line_height,
5580 window,
5581 cx,
5582 );
5583 }
5584 }
5585 }
5586 }
5587
5588 fn layout_word_diff_highlights(
5589 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5590 row_infos: &[RowInfo],
5591 start_row: DisplayRow,
5592 snapshot: &EditorSnapshot,
5593 highlighted_ranges: &mut Vec<(Range<DisplayPoint>, Hsla)>,
5594 cx: &mut App,
5595 ) {
5596 let colors = cx.theme().colors();
5597
5598 let word_highlights = display_hunks
5599 .into_iter()
5600 .filter_map(|(hunk, _)| match hunk {
5601 DisplayDiffHunk::Unfolded {
5602 word_diffs, status, ..
5603 } => Some((word_diffs, status)),
5604 _ => None,
5605 })
5606 .filter(|(_, status)| status.is_modified())
5607 .flat_map(|(word_diffs, _)| word_diffs)
5608 .flat_map(|word_diff| {
5609 let display_ranges = snapshot
5610 .display_snapshot
5611 .isomorphic_display_point_ranges_for_buffer_range(
5612 word_diff.start..word_diff.end,
5613 );
5614
5615 display_ranges.into_iter().filter_map(|range| {
5616 let start_row_offset = range.start.row().0.saturating_sub(start_row.0) as usize;
5617
5618 let diff_status = row_infos
5619 .get(start_row_offset)
5620 .and_then(|row_info| row_info.diff_status)?;
5621
5622 let background_color = match diff_status.kind {
5623 DiffHunkStatusKind::Added => colors.version_control_word_added,
5624 DiffHunkStatusKind::Deleted => colors.version_control_word_deleted,
5625 DiffHunkStatusKind::Modified => {
5626 debug_panic!("modified diff status for row info");
5627 return None;
5628 }
5629 };
5630
5631 Some((range, background_color))
5632 })
5633 });
5634
5635 highlighted_ranges.extend(word_highlights);
5636 }
5637
5638 fn layout_diff_hunk_controls(
5639 &self,
5640 row_range: Range<DisplayRow>,
5641 row_infos: &[RowInfo],
5642 text_hitbox: &Hitbox,
5643 newest_cursor_row: Option<DisplayRow>,
5644 line_height: Pixels,
5645 right_margin: Pixels,
5646 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5647 sticky_header_height: Pixels,
5648 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5649 highlighted_rows: &BTreeMap<DisplayRow, LineHighlight>,
5650 editor: Entity<Editor>,
5651 window: &mut Window,
5652 cx: &mut App,
5653 ) -> (Vec<AnyElement>, Vec<(DisplayRow, Bounds<Pixels>)>) {
5654 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
5655 let hovered_diff_hunk_row = editor.read(cx).hovered_diff_hunk_row;
5656 let sticky_top = text_hitbox.bounds.top() + sticky_header_height;
5657
5658 let mut controls = vec![];
5659 let mut control_bounds = vec![];
5660
5661 let active_rows = [hovered_diff_hunk_row, newest_cursor_row];
5662
5663 for (hunk, _) in display_hunks {
5664 if let DisplayDiffHunk::Unfolded {
5665 display_row_range,
5666 multi_buffer_range,
5667 status,
5668 is_created_file,
5669 ..
5670 } = &hunk
5671 {
5672 if display_row_range.start >= row_range.end {
5673 // hunk is fully below the viewport
5674 continue;
5675 }
5676 if display_row_range.end <= row_range.start {
5677 // hunk is fully above the viewport
5678 continue;
5679 }
5680 let row_ix = display_row_range.start.0.saturating_sub(row_range.start.0);
5681 if row_infos
5682 .get(row_ix as usize)
5683 .and_then(|row_info| row_info.diff_status)
5684 .is_none()
5685 {
5686 continue;
5687 }
5688 if highlighted_rows
5689 .get(&display_row_range.start)
5690 .and_then(|highlight| highlight.type_id)
5691 .is_some_and(|type_id| {
5692 [
5693 TypeId::of::<ConflictsOuter>(),
5694 TypeId::of::<ConflictsOursMarker>(),
5695 TypeId::of::<ConflictsOurs>(),
5696 TypeId::of::<ConflictsTheirs>(),
5697 TypeId::of::<ConflictsTheirsMarker>(),
5698 ]
5699 .contains(&type_id)
5700 })
5701 {
5702 continue;
5703 }
5704
5705 if active_rows
5706 .iter()
5707 .any(|row| row.is_some_and(|row| display_row_range.contains(&row)))
5708 {
5709 let hunk_start_y: Pixels = (display_row_range.start.as_f64()
5710 * ScrollPixelOffset::from(line_height)
5711 + ScrollPixelOffset::from(text_hitbox.bounds.top())
5712 - scroll_pixel_position.y)
5713 .into();
5714
5715 let y: Pixels = if hunk_start_y >= sticky_top {
5716 hunk_start_y
5717 } else {
5718 let hunk_end_y: Pixels = hunk_start_y
5719 + (display_row_range.len() as f64
5720 * ScrollPixelOffset::from(line_height))
5721 .into();
5722 let max_y = hunk_end_y - line_height;
5723 sticky_top.min(max_y)
5724 };
5725
5726 let mut element = render_diff_hunk_controls(
5727 display_row_range.start.0,
5728 status,
5729 multi_buffer_range.clone(),
5730 *is_created_file,
5731 line_height,
5732 &editor,
5733 window,
5734 cx,
5735 );
5736 let size =
5737 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
5738
5739 let x = text_hitbox.bounds.right() - right_margin - px(10.) - size.width;
5740
5741 if x < text_hitbox.bounds.left() {
5742 continue;
5743 }
5744
5745 let bounds = Bounds::new(gpui::Point::new(x, y), size);
5746 control_bounds.push((display_row_range.start, bounds));
5747
5748 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
5749 element.prepaint(window, cx)
5750 });
5751 controls.push(element);
5752 }
5753 }
5754 }
5755
5756 (controls, control_bounds)
5757 }
5758
5759 fn layout_signature_help(
5760 &self,
5761 hitbox: &Hitbox,
5762 content_origin: gpui::Point<Pixels>,
5763 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5764 newest_selection_head: Option<DisplayPoint>,
5765 start_row: DisplayRow,
5766 line_layouts: &[LineWithInvisibles],
5767 line_height: Pixels,
5768 em_width: Pixels,
5769 context_menu_layout: Option<ContextMenuLayout>,
5770 window: &mut Window,
5771 cx: &mut App,
5772 ) {
5773 if !self.editor.focus_handle(cx).is_focused(window) {
5774 return;
5775 }
5776 let Some(newest_selection_head) = newest_selection_head else {
5777 return;
5778 };
5779
5780 let max_size = size(
5781 (120. * em_width) // Default size
5782 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5783 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5784 (16. * line_height) // Default size
5785 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5786 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5787 );
5788
5789 let maybe_element = self.editor.update(cx, |editor, cx| {
5790 if let Some(popover) = editor.signature_help_state.popover_mut() {
5791 let element = popover.render(max_size, window, cx);
5792 Some(element)
5793 } else {
5794 None
5795 }
5796 });
5797 let Some(mut element) = maybe_element else {
5798 return;
5799 };
5800
5801 let selection_row = newest_selection_head.row();
5802 let Some(cursor_row_layout) = (selection_row >= start_row)
5803 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
5804 .flatten()
5805 else {
5806 return;
5807 };
5808
5809 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
5810 - Pixels::from(scroll_pixel_position.x);
5811 let target_y = Pixels::from(
5812 selection_row.as_f64() * ScrollPixelOffset::from(line_height) - scroll_pixel_position.y,
5813 );
5814 let target_point = content_origin + point(target_x, target_y);
5815
5816 let actual_size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
5817
5818 let (popover_bounds_above, popover_bounds_below) = {
5819 let horizontal_offset = (hitbox.top_right().x
5820 - POPOVER_RIGHT_OFFSET
5821 - (target_point.x + actual_size.width))
5822 .min(Pixels::ZERO);
5823 let initial_x = target_point.x + horizontal_offset;
5824 (
5825 Bounds::new(
5826 point(initial_x, target_point.y - actual_size.height),
5827 actual_size,
5828 ),
5829 Bounds::new(
5830 point(initial_x, target_point.y + line_height + HOVER_POPOVER_GAP),
5831 actual_size,
5832 ),
5833 )
5834 };
5835
5836 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5837 context_menu_layout
5838 .as_ref()
5839 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5840 };
5841
5842 let final_origin = if popover_bounds_above.is_contained_within(hitbox)
5843 && !intersects_menu(popover_bounds_above)
5844 {
5845 // try placing above cursor
5846 popover_bounds_above.origin
5847 } else if popover_bounds_below.is_contained_within(hitbox)
5848 && !intersects_menu(popover_bounds_below)
5849 {
5850 // try placing below cursor
5851 popover_bounds_below.origin
5852 } else {
5853 // try surrounding context menu if exists
5854 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5855 let y_for_horizontal_positioning = if menu.y_flipped {
5856 menu.bounds.bottom() - actual_size.height
5857 } else {
5858 menu.bounds.top()
5859 };
5860 let possible_origins = vec![
5861 // left of context menu
5862 point(
5863 menu.bounds.left() - actual_size.width - HOVER_POPOVER_GAP,
5864 y_for_horizontal_positioning,
5865 ),
5866 // right of context menu
5867 point(
5868 menu.bounds.right() + HOVER_POPOVER_GAP,
5869 y_for_horizontal_positioning,
5870 ),
5871 // top of context menu
5872 point(
5873 menu.bounds.left(),
5874 menu.bounds.top() - actual_size.height - HOVER_POPOVER_GAP,
5875 ),
5876 // bottom of context menu
5877 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5878 ];
5879 possible_origins
5880 .into_iter()
5881 .find(|&origin| Bounds::new(origin, actual_size).is_contained_within(hitbox))
5882 });
5883 origin_surrounding_menu.unwrap_or_else(|| {
5884 // fallback to existing above/below cursor logic
5885 // this might overlap menu or overflow in rare case
5886 if popover_bounds_above.is_contained_within(hitbox) {
5887 popover_bounds_above.origin
5888 } else {
5889 popover_bounds_below.origin
5890 }
5891 })
5892 };
5893
5894 window.defer_draw(element, final_origin, 2, None);
5895 }
5896
5897 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5898 window.paint_layer(layout.hitbox.bounds, |window| {
5899 let scroll_top = layout.position_map.snapshot.scroll_position().y;
5900 let gutter_bg = cx.theme().colors().editor_gutter_background;
5901 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
5902 window.paint_quad(fill(
5903 layout.position_map.text_hitbox.bounds,
5904 self.style.background,
5905 ));
5906
5907 if matches!(
5908 layout.mode,
5909 EditorMode::Full { .. } | EditorMode::Minimap { .. }
5910 ) {
5911 let show_active_line_background = match layout.mode {
5912 EditorMode::Full {
5913 show_active_line_background,
5914 ..
5915 } => show_active_line_background,
5916 EditorMode::Minimap { .. } => true,
5917 _ => false,
5918 };
5919 let mut active_rows = layout.active_rows.iter().peekable();
5920 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
5921 let mut end_row = start_row.0;
5922 while active_rows
5923 .peek()
5924 .is_some_and(|(active_row, has_selection)| {
5925 active_row.0 == end_row + 1
5926 && has_selection.selection == contains_non_empty_selection.selection
5927 })
5928 {
5929 active_rows.next().unwrap();
5930 end_row += 1;
5931 }
5932
5933 if show_active_line_background && !contains_non_empty_selection.selection {
5934 let highlight_h_range =
5935 match layout.position_map.snapshot.current_line_highlight {
5936 CurrentLineHighlight::Gutter => Some(Range {
5937 start: layout.hitbox.left(),
5938 end: layout.gutter_hitbox.right(),
5939 }),
5940 CurrentLineHighlight::Line => Some(Range {
5941 start: layout.position_map.text_hitbox.bounds.left(),
5942 end: layout.position_map.text_hitbox.bounds.right(),
5943 }),
5944 CurrentLineHighlight::All => Some(Range {
5945 start: layout.hitbox.left(),
5946 end: layout.hitbox.right(),
5947 }),
5948 CurrentLineHighlight::None => None,
5949 };
5950 if let Some(range) = highlight_h_range {
5951 let active_line_bg = cx.theme().colors().editor_active_line_background;
5952 let bounds = Bounds {
5953 origin: point(
5954 range.start,
5955 layout.hitbox.origin.y
5956 + Pixels::from(
5957 (start_row.as_f64() - scroll_top)
5958 * ScrollPixelOffset::from(
5959 layout.position_map.line_height,
5960 ),
5961 ),
5962 ),
5963 size: size(
5964 range.end - range.start,
5965 layout.position_map.line_height
5966 * (end_row - start_row.0 + 1) as f32,
5967 ),
5968 };
5969 window.paint_quad(fill(bounds, active_line_bg));
5970 }
5971 }
5972 }
5973
5974 let mut paint_highlight = |highlight_row_start: DisplayRow,
5975 highlight_row_end: DisplayRow,
5976 highlight: crate::LineHighlight,
5977 edges| {
5978 let mut origin_x = layout.hitbox.left();
5979 let mut width = layout.hitbox.size.width;
5980 if !highlight.include_gutter {
5981 origin_x += layout.gutter_hitbox.size.width;
5982 width -= layout.gutter_hitbox.size.width;
5983 }
5984
5985 let origin = point(
5986 origin_x,
5987 layout.hitbox.origin.y
5988 + Pixels::from(
5989 (highlight_row_start.as_f64() - scroll_top)
5990 * ScrollPixelOffset::from(layout.position_map.line_height),
5991 ),
5992 );
5993 let size = size(
5994 width,
5995 layout.position_map.line_height
5996 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
5997 );
5998 let mut quad = fill(Bounds { origin, size }, highlight.background);
5999 if let Some(border_color) = highlight.border {
6000 quad.border_color = border_color;
6001 quad.border_widths = edges
6002 }
6003 window.paint_quad(quad);
6004 };
6005
6006 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
6007 None;
6008 for (&new_row, &new_background) in &layout.highlighted_rows {
6009 match &mut current_paint {
6010 &mut Some((current_background, ref mut current_range, mut edges)) => {
6011 let new_range_started = current_background != new_background
6012 || current_range.end.next_row() != new_row;
6013 if new_range_started {
6014 if current_range.end.next_row() == new_row {
6015 edges.bottom = px(0.);
6016 };
6017 paint_highlight(
6018 current_range.start,
6019 current_range.end,
6020 current_background,
6021 edges,
6022 );
6023 let edges = Edges {
6024 top: if current_range.end.next_row() != new_row {
6025 px(1.)
6026 } else {
6027 px(0.)
6028 },
6029 bottom: px(1.),
6030 ..Default::default()
6031 };
6032 current_paint = Some((new_background, new_row..new_row, edges));
6033 continue;
6034 } else {
6035 current_range.end = current_range.end.next_row();
6036 }
6037 }
6038 None => {
6039 let edges = Edges {
6040 top: px(1.),
6041 bottom: px(1.),
6042 ..Default::default()
6043 };
6044 current_paint = Some((new_background, new_row..new_row, edges))
6045 }
6046 };
6047 }
6048 if let Some((color, range, edges)) = current_paint {
6049 paint_highlight(range.start, range.end, color, edges);
6050 }
6051
6052 for (guide_x, active) in layout.wrap_guides.iter() {
6053 let color = if *active {
6054 cx.theme().colors().editor_active_wrap_guide
6055 } else {
6056 cx.theme().colors().editor_wrap_guide
6057 };
6058 window.paint_quad(fill(
6059 Bounds {
6060 origin: point(*guide_x, layout.position_map.text_hitbox.origin.y),
6061 size: size(px(1.), layout.position_map.text_hitbox.size.height),
6062 },
6063 color,
6064 ));
6065 }
6066 }
6067 })
6068 }
6069
6070 fn paint_indent_guides(
6071 &mut self,
6072 layout: &mut EditorLayout,
6073 window: &mut Window,
6074 cx: &mut App,
6075 ) {
6076 let Some(indent_guides) = &layout.indent_guides else {
6077 return;
6078 };
6079
6080 let faded_color = |color: Hsla, alpha: f32| {
6081 let mut faded = color;
6082 faded.a = alpha;
6083 faded
6084 };
6085
6086 for indent_guide in indent_guides {
6087 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
6088 let settings = &indent_guide.settings;
6089
6090 // TODO fixed for now, expose them through themes later
6091 const INDENT_AWARE_ALPHA: f32 = 0.2;
6092 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
6093 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
6094 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
6095
6096 let line_color = match (settings.coloring, indent_guide.active) {
6097 (IndentGuideColoring::Disabled, _) => None,
6098 (IndentGuideColoring::Fixed, false) => {
6099 Some(cx.theme().colors().editor_indent_guide)
6100 }
6101 (IndentGuideColoring::Fixed, true) => {
6102 Some(cx.theme().colors().editor_indent_guide_active)
6103 }
6104 (IndentGuideColoring::IndentAware, false) => {
6105 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
6106 }
6107 (IndentGuideColoring::IndentAware, true) => {
6108 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
6109 }
6110 };
6111
6112 let background_color = match (settings.background_coloring, indent_guide.active) {
6113 (IndentGuideBackgroundColoring::Disabled, _) => None,
6114 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
6115 indent_accent_colors,
6116 INDENT_AWARE_BACKGROUND_ALPHA,
6117 )),
6118 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
6119 indent_accent_colors,
6120 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
6121 )),
6122 };
6123
6124 let mut line_indicator_width = 0.;
6125 if let Some(requested_line_width) = settings.visible_line_width(indent_guide.active) {
6126 if let Some(color) = line_color {
6127 window.paint_quad(fill(
6128 Bounds {
6129 origin: indent_guide.origin,
6130 size: size(px(requested_line_width as f32), indent_guide.length),
6131 },
6132 color,
6133 ));
6134 line_indicator_width = requested_line_width as f32;
6135 }
6136 }
6137
6138 if let Some(color) = background_color {
6139 let width = indent_guide.single_indent_width - px(line_indicator_width);
6140 window.paint_quad(fill(
6141 Bounds {
6142 origin: point(
6143 indent_guide.origin.x + px(line_indicator_width),
6144 indent_guide.origin.y,
6145 ),
6146 size: size(width, indent_guide.length),
6147 },
6148 color,
6149 ));
6150 }
6151 }
6152 }
6153
6154 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6155 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
6156
6157 let line_height = layout.position_map.line_height;
6158 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
6159
6160 for line_layout in layout.line_numbers.values() {
6161 for LineNumberSegment {
6162 shaped_line,
6163 hitbox,
6164 } in &line_layout.segments
6165 {
6166 let Some(hitbox) = hitbox else {
6167 continue;
6168 };
6169
6170 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
6171 let color = cx.theme().colors().editor_hover_line_number;
6172
6173 let line = self.shape_line_number(shaped_line.text.clone(), color, window);
6174 line.paint(
6175 hitbox.origin,
6176 line_height,
6177 TextAlign::Left,
6178 None,
6179 window,
6180 cx,
6181 )
6182 .log_err()
6183 } else {
6184 shaped_line
6185 .paint(
6186 hitbox.origin,
6187 line_height,
6188 TextAlign::Left,
6189 None,
6190 window,
6191 cx,
6192 )
6193 .log_err()
6194 }) else {
6195 continue;
6196 };
6197
6198 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
6199 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
6200 if is_singleton {
6201 window.set_cursor_style(CursorStyle::IBeam, hitbox);
6202 } else {
6203 window.set_cursor_style(CursorStyle::PointingHand, hitbox);
6204 }
6205 }
6206 }
6207 }
6208
6209 fn paint_gutter_diff_hunks(
6210 layout: &mut EditorLayout,
6211 split_side: Option<SplitSide>,
6212 window: &mut Window,
6213 cx: &mut App,
6214 ) {
6215 if layout.display_hunks.is_empty() {
6216 return;
6217 }
6218
6219 let line_height = layout.position_map.line_height;
6220 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6221 for (hunk, hitbox) in &layout.display_hunks {
6222 let hunk_to_paint = match hunk {
6223 DisplayDiffHunk::Folded { .. } => {
6224 let hunk_bounds = Self::diff_hunk_bounds(
6225 &layout.position_map.snapshot,
6226 line_height,
6227 layout.gutter_hitbox.bounds,
6228 hunk,
6229 );
6230 Some((
6231 hunk_bounds,
6232 cx.theme().colors().version_control_modified,
6233 Corners::all(px(0.)),
6234 DiffHunkStatus::modified_none(),
6235 ))
6236 }
6237 DisplayDiffHunk::Unfolded {
6238 status,
6239 display_row_range,
6240 ..
6241 } => hitbox.as_ref().map(|hunk_hitbox| {
6242 let color = match split_side {
6243 Some(SplitSide::Left) => cx.theme().colors().version_control_deleted,
6244 Some(SplitSide::Right) => cx.theme().colors().version_control_added,
6245 None => match status.kind {
6246 DiffHunkStatusKind::Added => {
6247 cx.theme().colors().version_control_added
6248 }
6249 DiffHunkStatusKind::Modified => {
6250 cx.theme().colors().version_control_modified
6251 }
6252 DiffHunkStatusKind::Deleted => {
6253 cx.theme().colors().version_control_deleted
6254 }
6255 },
6256 };
6257 match status.kind {
6258 DiffHunkStatusKind::Deleted if display_row_range.is_empty() => (
6259 Bounds::new(
6260 point(
6261 hunk_hitbox.origin.x - hunk_hitbox.size.width,
6262 hunk_hitbox.origin.y,
6263 ),
6264 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
6265 ),
6266 color,
6267 Corners::all(1. * line_height),
6268 *status,
6269 ),
6270 _ => (hunk_hitbox.bounds, color, Corners::all(px(0.)), *status),
6271 }
6272 }),
6273 };
6274
6275 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
6276 // Flatten the background color with the editor color to prevent
6277 // elements below transparent hunks from showing through
6278 let flattened_background_color = cx
6279 .theme()
6280 .colors()
6281 .editor_background
6282 .blend(background_color);
6283
6284 if !Self::diff_hunk_hollow(status, cx) {
6285 window.paint_quad(quad(
6286 hunk_bounds,
6287 corner_radii,
6288 flattened_background_color,
6289 Edges::default(),
6290 transparent_black(),
6291 BorderStyle::default(),
6292 ));
6293 } else {
6294 let flattened_unstaged_background_color = cx
6295 .theme()
6296 .colors()
6297 .editor_background
6298 .blend(background_color.opacity(0.3));
6299
6300 window.paint_quad(quad(
6301 hunk_bounds,
6302 corner_radii,
6303 flattened_unstaged_background_color,
6304 Edges::all(px(1.0)),
6305 flattened_background_color,
6306 BorderStyle::Solid,
6307 ));
6308 }
6309 }
6310 }
6311 });
6312 }
6313
6314 fn gutter_strip_width(line_height: Pixels) -> Pixels {
6315 (0.275 * line_height).floor()
6316 }
6317
6318 fn diff_hunk_bounds(
6319 snapshot: &EditorSnapshot,
6320 line_height: Pixels,
6321 gutter_bounds: Bounds<Pixels>,
6322 hunk: &DisplayDiffHunk,
6323 ) -> Bounds<Pixels> {
6324 let scroll_position = snapshot.scroll_position();
6325 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
6326 let gutter_strip_width = Self::gutter_strip_width(line_height);
6327
6328 match hunk {
6329 DisplayDiffHunk::Folded { display_row, .. } => {
6330 let start_y = (display_row.as_f64() * ScrollPixelOffset::from(line_height)
6331 - scroll_top)
6332 .into();
6333 let end_y = start_y + line_height;
6334 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6335 let highlight_size = size(gutter_strip_width, end_y - start_y);
6336 Bounds::new(highlight_origin, highlight_size)
6337 }
6338 DisplayDiffHunk::Unfolded {
6339 display_row_range,
6340 status,
6341 ..
6342 } => {
6343 if status.is_deleted() && display_row_range.is_empty() {
6344 let row = display_row_range.start;
6345
6346 let offset = ScrollPixelOffset::from(line_height / 2.);
6347 let start_y =
6348 (row.as_f64() * ScrollPixelOffset::from(line_height) - offset - scroll_top)
6349 .into();
6350 let end_y = start_y + line_height;
6351
6352 let width = (0.35 * line_height).floor();
6353 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6354 let highlight_size = size(width, end_y - start_y);
6355 Bounds::new(highlight_origin, highlight_size)
6356 } else {
6357 let start_row = display_row_range.start;
6358 let end_row = display_row_range.end;
6359 // If we're in a multibuffer, row range span might include an
6360 // excerpt header, so if we were to draw the marker straight away,
6361 // the hunk might include the rows of that header.
6362 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
6363 // Instead, we simply check whether the range we're dealing with includes
6364 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
6365 let end_row_in_current_excerpt = snapshot
6366 .blocks_in_range(start_row..end_row)
6367 .find_map(|(start_row, block)| {
6368 if matches!(
6369 block,
6370 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
6371 ) {
6372 Some(start_row)
6373 } else {
6374 None
6375 }
6376 })
6377 .unwrap_or(end_row);
6378
6379 let start_y = (start_row.as_f64() * ScrollPixelOffset::from(line_height)
6380 - scroll_top)
6381 .into();
6382 let end_y = Pixels::from(
6383 end_row_in_current_excerpt.as_f64() * ScrollPixelOffset::from(line_height)
6384 - scroll_top,
6385 );
6386
6387 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6388 let highlight_size = size(gutter_strip_width, end_y - start_y);
6389 Bounds::new(highlight_origin, highlight_size)
6390 }
6391 }
6392 }
6393 }
6394
6395 fn paint_gutter_indicators(
6396 &self,
6397 layout: &mut EditorLayout,
6398 window: &mut Window,
6399 cx: &mut App,
6400 ) {
6401 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6402 window.with_element_namespace("crease_toggles", |window| {
6403 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
6404 crease_toggle.paint(window, cx);
6405 }
6406 });
6407
6408 window.with_element_namespace("expand_toggles", |window| {
6409 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
6410 expand_toggle.paint(window, cx);
6411 }
6412 });
6413
6414 for breakpoint in layout.breakpoints.iter_mut() {
6415 breakpoint.paint(window, cx);
6416 }
6417
6418 for test_indicator in layout.test_indicators.iter_mut() {
6419 test_indicator.paint(window, cx);
6420 }
6421
6422 if let Some(diff_review_button) = layout.diff_review_button.as_mut() {
6423 diff_review_button.paint(window, cx);
6424 }
6425 });
6426 }
6427
6428 fn paint_gutter_highlights(
6429 &self,
6430 layout: &mut EditorLayout,
6431 window: &mut Window,
6432 cx: &mut App,
6433 ) {
6434 for (_, hunk_hitbox) in &layout.display_hunks {
6435 if let Some(hunk_hitbox) = hunk_hitbox
6436 && !self
6437 .editor
6438 .read(cx)
6439 .buffer()
6440 .read(cx)
6441 .all_diff_hunks_expanded()
6442 {
6443 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
6444 }
6445 }
6446
6447 let show_git_gutter = layout
6448 .position_map
6449 .snapshot
6450 .show_git_diff_gutter
6451 .unwrap_or_else(|| {
6452 matches!(
6453 ProjectSettings::get_global(cx).git.git_gutter,
6454 GitGutterSetting::TrackedFiles
6455 )
6456 });
6457 if show_git_gutter {
6458 Self::paint_gutter_diff_hunks(layout, self.split_side, window, cx)
6459 }
6460
6461 let highlight_width = 0.275 * layout.position_map.line_height;
6462 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
6463 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6464 for (range, color) in &layout.highlighted_gutter_ranges {
6465 let start_row = if range.start.row() < layout.visible_display_row_range.start {
6466 layout.visible_display_row_range.start - DisplayRow(1)
6467 } else {
6468 range.start.row()
6469 };
6470 let end_row = if range.end.row() > layout.visible_display_row_range.end {
6471 layout.visible_display_row_range.end + DisplayRow(1)
6472 } else {
6473 range.end.row()
6474 };
6475
6476 let start_y = layout.gutter_hitbox.top()
6477 + Pixels::from(
6478 start_row.0 as f64
6479 * ScrollPixelOffset::from(layout.position_map.line_height)
6480 - layout.position_map.scroll_pixel_position.y,
6481 );
6482 let end_y = layout.gutter_hitbox.top()
6483 + Pixels::from(
6484 (end_row.0 + 1) as f64
6485 * ScrollPixelOffset::from(layout.position_map.line_height)
6486 - layout.position_map.scroll_pixel_position.y,
6487 );
6488 let bounds = Bounds::from_corners(
6489 point(layout.gutter_hitbox.left(), start_y),
6490 point(layout.gutter_hitbox.left() + highlight_width, end_y),
6491 );
6492 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
6493 }
6494 });
6495 }
6496
6497 fn paint_blamed_display_rows(
6498 &self,
6499 layout: &mut EditorLayout,
6500 window: &mut Window,
6501 cx: &mut App,
6502 ) {
6503 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
6504 return;
6505 };
6506
6507 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6508 for mut blame_element in blamed_display_rows.into_iter() {
6509 blame_element.paint(window, cx);
6510 }
6511 })
6512 }
6513
6514 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6515 window.with_content_mask(
6516 Some(ContentMask {
6517 bounds: layout.position_map.text_hitbox.bounds,
6518 }),
6519 |window| {
6520 let editor = self.editor.read(cx);
6521 if editor.mouse_cursor_hidden {
6522 window.set_window_cursor_style(CursorStyle::None);
6523 } else if let SelectionDragState::ReadyToDrag {
6524 mouse_down_time, ..
6525 } = &editor.selection_drag_state
6526 {
6527 let drag_and_drop_delay = Duration::from_millis(
6528 EditorSettings::get_global(cx)
6529 .drag_and_drop_selection
6530 .delay
6531 .0,
6532 );
6533 if mouse_down_time.elapsed() >= drag_and_drop_delay {
6534 window.set_cursor_style(
6535 CursorStyle::DragCopy,
6536 &layout.position_map.text_hitbox,
6537 );
6538 }
6539 } else if matches!(
6540 editor.selection_drag_state,
6541 SelectionDragState::Dragging { .. }
6542 ) {
6543 window
6544 .set_cursor_style(CursorStyle::DragCopy, &layout.position_map.text_hitbox);
6545 } else if editor
6546 .hovered_link_state
6547 .as_ref()
6548 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
6549 {
6550 window.set_cursor_style(
6551 CursorStyle::PointingHand,
6552 &layout.position_map.text_hitbox,
6553 );
6554 } else {
6555 window.set_cursor_style(CursorStyle::IBeam, &layout.position_map.text_hitbox);
6556 };
6557
6558 self.paint_lines_background(layout, window, cx);
6559 let invisible_display_ranges = self.paint_highlights(layout, window, cx);
6560 self.paint_document_colors(layout, window);
6561 self.paint_lines(&invisible_display_ranges, layout, window, cx);
6562 self.paint_redactions(layout, window);
6563 self.paint_cursors(layout, window, cx);
6564 self.paint_inline_diagnostics(layout, window, cx);
6565 self.paint_inline_blame(layout, window, cx);
6566 self.paint_inline_code_actions(layout, window, cx);
6567 self.paint_diff_hunk_controls(layout, window, cx);
6568 window.with_element_namespace("crease_trailers", |window| {
6569 for trailer in layout.crease_trailers.iter_mut().flatten() {
6570 trailer.element.paint(window, cx);
6571 }
6572 });
6573 },
6574 )
6575 }
6576
6577 fn paint_highlights(
6578 &mut self,
6579 layout: &mut EditorLayout,
6580 window: &mut Window,
6581 cx: &mut App,
6582 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
6583 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6584 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
6585 let line_end_overshoot = 0.15 * layout.position_map.line_height;
6586 for (range, color) in &layout.highlighted_ranges {
6587 self.paint_highlighted_range(
6588 range.clone(),
6589 true,
6590 *color,
6591 Pixels::ZERO,
6592 line_end_overshoot,
6593 layout,
6594 window,
6595 );
6596 }
6597
6598 let corner_radius = if EditorSettings::get_global(cx).rounded_selection {
6599 0.15 * layout.position_map.line_height
6600 } else {
6601 Pixels::ZERO
6602 };
6603
6604 for (player_color, selections) in &layout.selections {
6605 for selection in selections.iter() {
6606 self.paint_highlighted_range(
6607 selection.range.clone(),
6608 true,
6609 player_color.selection,
6610 corner_radius,
6611 corner_radius * 2.,
6612 layout,
6613 window,
6614 );
6615
6616 if selection.is_local && !selection.range.is_empty() {
6617 invisible_display_ranges.push(selection.range.clone());
6618 }
6619 }
6620 }
6621 invisible_display_ranges
6622 })
6623 }
6624
6625 fn paint_lines(
6626 &mut self,
6627 invisible_display_ranges: &[Range<DisplayPoint>],
6628 layout: &mut EditorLayout,
6629 window: &mut Window,
6630 cx: &mut App,
6631 ) {
6632 let whitespace_setting = self
6633 .editor
6634 .read(cx)
6635 .buffer
6636 .read(cx)
6637 .language_settings(cx)
6638 .show_whitespaces;
6639
6640 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6641 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6642 line_with_invisibles.draw(
6643 layout,
6644 row,
6645 layout.content_origin,
6646 whitespace_setting,
6647 invisible_display_ranges,
6648 window,
6649 cx,
6650 )
6651 }
6652
6653 for line_element in &mut layout.line_elements {
6654 line_element.paint(window, cx);
6655 }
6656 }
6657
6658 fn paint_sticky_headers(
6659 &mut self,
6660 layout: &mut EditorLayout,
6661 window: &mut Window,
6662 cx: &mut App,
6663 ) {
6664 let Some(mut sticky_headers) = layout.sticky_headers.take() else {
6665 return;
6666 };
6667
6668 if sticky_headers.lines.is_empty() {
6669 layout.sticky_headers = Some(sticky_headers);
6670 return;
6671 }
6672
6673 let whitespace_setting = self
6674 .editor
6675 .read(cx)
6676 .buffer
6677 .read(cx)
6678 .language_settings(cx)
6679 .show_whitespaces;
6680 sticky_headers.paint(layout, whitespace_setting, window, cx);
6681
6682 let sticky_header_hitboxes: Vec<Hitbox> = sticky_headers
6683 .lines
6684 .iter()
6685 .map(|line| line.hitbox.clone())
6686 .collect();
6687 let hovered_hitbox = sticky_header_hitboxes
6688 .iter()
6689 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6690
6691 window.on_mouse_event(move |_: &MouseMoveEvent, phase, window, _cx| {
6692 if !phase.bubble() {
6693 return;
6694 }
6695
6696 let current_hover = sticky_header_hitboxes
6697 .iter()
6698 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6699 if hovered_hitbox != current_hover {
6700 window.refresh();
6701 }
6702 });
6703
6704 for (line_index, line) in sticky_headers.lines.iter().enumerate() {
6705 let editor = self.editor.clone();
6706 let hitbox = line.hitbox.clone();
6707 let target_anchor = line.target_anchor;
6708 window.on_mouse_event(move |event: &MouseDownEvent, phase, window, cx| {
6709 if !phase.bubble() {
6710 return;
6711 }
6712
6713 if event.button == MouseButton::Left && hitbox.is_hovered(window) {
6714 editor.update(cx, |editor, cx| {
6715 editor.change_selections(
6716 SelectionEffects::scroll(Autoscroll::top_relative(line_index)),
6717 window,
6718 cx,
6719 |selections| selections.select_ranges([target_anchor..target_anchor]),
6720 );
6721 cx.stop_propagation();
6722 });
6723 }
6724 });
6725 }
6726
6727 let text_bounds = layout.position_map.text_hitbox.bounds;
6728 let border_top = text_bounds.top()
6729 + sticky_headers.lines.last().unwrap().offset
6730 + layout.position_map.line_height;
6731 let separator_height = px(1.);
6732 let border_bounds = Bounds::from_corners(
6733 point(layout.gutter_hitbox.bounds.left(), border_top),
6734 point(text_bounds.right(), border_top + separator_height),
6735 );
6736 window.paint_quad(fill(border_bounds, cx.theme().colors().border_variant));
6737
6738 layout.sticky_headers = Some(sticky_headers);
6739 }
6740
6741 fn paint_lines_background(
6742 &mut self,
6743 layout: &mut EditorLayout,
6744 window: &mut Window,
6745 cx: &mut App,
6746 ) {
6747 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6748 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6749 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
6750 }
6751 }
6752
6753 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
6754 if layout.redacted_ranges.is_empty() {
6755 return;
6756 }
6757
6758 let line_end_overshoot = layout.line_end_overshoot();
6759
6760 // A softer than perfect black
6761 let redaction_color = gpui::rgb(0x0e1111);
6762
6763 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6764 for range in layout.redacted_ranges.iter() {
6765 self.paint_highlighted_range(
6766 range.clone(),
6767 true,
6768 redaction_color.into(),
6769 Pixels::ZERO,
6770 line_end_overshoot,
6771 layout,
6772 window,
6773 );
6774 }
6775 });
6776 }
6777
6778 fn paint_document_colors(&self, layout: &mut EditorLayout, window: &mut Window) {
6779 let Some((colors_render_mode, image_colors)) = &layout.document_colors else {
6780 return;
6781 };
6782 if image_colors.is_empty()
6783 || colors_render_mode == &DocumentColorsRenderMode::None
6784 || colors_render_mode == &DocumentColorsRenderMode::Inlay
6785 {
6786 return;
6787 }
6788
6789 let line_end_overshoot = layout.line_end_overshoot();
6790
6791 for (range, color) in image_colors {
6792 match colors_render_mode {
6793 DocumentColorsRenderMode::Inlay | DocumentColorsRenderMode::None => return,
6794 DocumentColorsRenderMode::Background => {
6795 self.paint_highlighted_range(
6796 range.clone(),
6797 true,
6798 *color,
6799 Pixels::ZERO,
6800 line_end_overshoot,
6801 layout,
6802 window,
6803 );
6804 }
6805 DocumentColorsRenderMode::Border => {
6806 self.paint_highlighted_range(
6807 range.clone(),
6808 false,
6809 *color,
6810 Pixels::ZERO,
6811 line_end_overshoot,
6812 layout,
6813 window,
6814 );
6815 }
6816 }
6817 }
6818 }
6819
6820 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6821 for cursor in &mut layout.visible_cursors {
6822 cursor.paint(layout.content_origin, window, cx);
6823 }
6824 }
6825
6826 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6827 let Some(scrollbars_layout) = layout.scrollbars_layout.take() else {
6828 return;
6829 };
6830 let any_scrollbar_dragged = self.editor.read(cx).scroll_manager.any_scrollbar_dragged();
6831
6832 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
6833 let hitbox = &scrollbar_layout.hitbox;
6834 if scrollbars_layout.visible {
6835 let scrollbar_edges = match axis {
6836 ScrollbarAxis::Horizontal => Edges {
6837 top: Pixels::ZERO,
6838 right: Pixels::ZERO,
6839 bottom: Pixels::ZERO,
6840 left: Pixels::ZERO,
6841 },
6842 ScrollbarAxis::Vertical => Edges {
6843 top: Pixels::ZERO,
6844 right: Pixels::ZERO,
6845 bottom: Pixels::ZERO,
6846 left: ScrollbarLayout::BORDER_WIDTH,
6847 },
6848 };
6849
6850 window.paint_layer(hitbox.bounds, |window| {
6851 window.paint_quad(quad(
6852 hitbox.bounds,
6853 Corners::default(),
6854 cx.theme().colors().scrollbar_track_background,
6855 scrollbar_edges,
6856 cx.theme().colors().scrollbar_track_border,
6857 BorderStyle::Solid,
6858 ));
6859
6860 if axis == ScrollbarAxis::Vertical {
6861 let fast_markers =
6862 self.collect_fast_scrollbar_markers(layout, scrollbar_layout, cx);
6863 // Refresh slow scrollbar markers in the background. Below, we
6864 // paint whatever markers have already been computed.
6865 self.refresh_slow_scrollbar_markers(layout, scrollbar_layout, window, cx);
6866
6867 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
6868 for marker in markers.iter().chain(&fast_markers) {
6869 let mut marker = marker.clone();
6870 marker.bounds.origin += hitbox.origin;
6871 window.paint_quad(marker);
6872 }
6873 }
6874
6875 if let Some(thumb_bounds) = scrollbar_layout.thumb_bounds {
6876 let scrollbar_thumb_color = match scrollbar_layout.thumb_state {
6877 ScrollbarThumbState::Dragging => {
6878 cx.theme().colors().scrollbar_thumb_active_background
6879 }
6880 ScrollbarThumbState::Hovered => {
6881 cx.theme().colors().scrollbar_thumb_hover_background
6882 }
6883 ScrollbarThumbState::Idle => {
6884 cx.theme().colors().scrollbar_thumb_background
6885 }
6886 };
6887 window.paint_quad(quad(
6888 thumb_bounds,
6889 Corners::default(),
6890 scrollbar_thumb_color,
6891 scrollbar_edges,
6892 cx.theme().colors().scrollbar_thumb_border,
6893 BorderStyle::Solid,
6894 ));
6895
6896 if any_scrollbar_dragged {
6897 window.set_window_cursor_style(CursorStyle::Arrow);
6898 } else {
6899 window.set_cursor_style(CursorStyle::Arrow, hitbox);
6900 }
6901 }
6902 })
6903 }
6904 }
6905
6906 window.on_mouse_event({
6907 let editor = self.editor.clone();
6908 let scrollbars_layout = scrollbars_layout.clone();
6909
6910 let mut mouse_position = window.mouse_position();
6911 move |event: &MouseMoveEvent, phase, window, cx| {
6912 if phase == DispatchPhase::Capture {
6913 return;
6914 }
6915
6916 editor.update(cx, |editor, cx| {
6917 if let Some((scrollbar_layout, axis)) = event
6918 .pressed_button
6919 .filter(|button| *button == MouseButton::Left)
6920 .and(editor.scroll_manager.dragging_scrollbar_axis())
6921 .and_then(|axis| {
6922 scrollbars_layout
6923 .iter_scrollbars()
6924 .find(|(_, a)| *a == axis)
6925 })
6926 {
6927 let ScrollbarLayout {
6928 hitbox,
6929 text_unit_size,
6930 ..
6931 } = scrollbar_layout;
6932
6933 let old_position = mouse_position.along(axis);
6934 let new_position = event.position.along(axis);
6935 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
6936 .contains(&old_position)
6937 {
6938 let position = editor.scroll_position(cx).apply_along(axis, |p| {
6939 (p + ScrollOffset::from(
6940 (new_position - old_position) / *text_unit_size,
6941 ))
6942 .max(0.)
6943 });
6944 editor.set_scroll_position(position, window, cx);
6945 }
6946
6947 editor.scroll_manager.show_scrollbars(window, cx);
6948 cx.stop_propagation();
6949 } else if let Some((layout, axis)) = scrollbars_layout
6950 .get_hovered_axis(window)
6951 .filter(|_| !event.dragging())
6952 {
6953 if layout.thumb_hovered(&event.position) {
6954 editor
6955 .scroll_manager
6956 .set_hovered_scroll_thumb_axis(axis, cx);
6957 } else {
6958 editor.scroll_manager.reset_scrollbar_state(cx);
6959 }
6960
6961 editor.scroll_manager.show_scrollbars(window, cx);
6962 } else {
6963 editor.scroll_manager.reset_scrollbar_state(cx);
6964 }
6965
6966 mouse_position = event.position;
6967 })
6968 }
6969 });
6970
6971 if any_scrollbar_dragged {
6972 window.on_mouse_event({
6973 let editor = self.editor.clone();
6974 move |_: &MouseUpEvent, phase, window, cx| {
6975 if phase == DispatchPhase::Capture {
6976 return;
6977 }
6978
6979 editor.update(cx, |editor, cx| {
6980 if let Some((_, axis)) = scrollbars_layout.get_hovered_axis(window) {
6981 editor
6982 .scroll_manager
6983 .set_hovered_scroll_thumb_axis(axis, cx);
6984 } else {
6985 editor.scroll_manager.reset_scrollbar_state(cx);
6986 }
6987 cx.stop_propagation();
6988 });
6989 }
6990 });
6991 } else {
6992 window.on_mouse_event({
6993 let editor = self.editor.clone();
6994
6995 move |event: &MouseDownEvent, phase, window, cx| {
6996 if phase == DispatchPhase::Capture {
6997 return;
6998 }
6999 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
7000 else {
7001 return;
7002 };
7003
7004 let ScrollbarLayout {
7005 hitbox,
7006 visible_range,
7007 text_unit_size,
7008 thumb_bounds,
7009 ..
7010 } = scrollbar_layout;
7011
7012 let Some(thumb_bounds) = thumb_bounds else {
7013 return;
7014 };
7015
7016 editor.update(cx, |editor, cx| {
7017 editor
7018 .scroll_manager
7019 .set_dragged_scroll_thumb_axis(axis, cx);
7020
7021 let event_position = event.position.along(axis);
7022
7023 if event_position < thumb_bounds.origin.along(axis)
7024 || thumb_bounds.bottom_right().along(axis) < event_position
7025 {
7026 let center_position = ((event_position - hitbox.origin.along(axis))
7027 / *text_unit_size)
7028 .round() as u32;
7029 let start_position = center_position.saturating_sub(
7030 (visible_range.end - visible_range.start) as u32 / 2,
7031 );
7032
7033 let position = editor
7034 .scroll_position(cx)
7035 .apply_along(axis, |_| start_position as ScrollOffset);
7036
7037 editor.set_scroll_position(position, window, cx);
7038 } else {
7039 editor.scroll_manager.show_scrollbars(window, cx);
7040 }
7041
7042 cx.stop_propagation();
7043 });
7044 }
7045 });
7046 }
7047 }
7048
7049 fn collect_fast_scrollbar_markers(
7050 &self,
7051 layout: &EditorLayout,
7052 scrollbar_layout: &ScrollbarLayout,
7053 cx: &mut App,
7054 ) -> Vec<PaintQuad> {
7055 const LIMIT: usize = 100;
7056 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
7057 return vec![];
7058 }
7059 let cursor_ranges = layout
7060 .cursors
7061 .iter()
7062 .map(|(point, color)| ColoredRange {
7063 start: point.row(),
7064 end: point.row(),
7065 color: *color,
7066 })
7067 .collect_vec();
7068 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
7069 }
7070
7071 fn refresh_slow_scrollbar_markers(
7072 &self,
7073 layout: &EditorLayout,
7074 scrollbar_layout: &ScrollbarLayout,
7075 window: &mut Window,
7076 cx: &mut App,
7077 ) {
7078 self.editor.update(cx, |editor, cx| {
7079 if editor.buffer_kind(cx) != ItemBufferKind::Singleton
7080 || !editor
7081 .scrollbar_marker_state
7082 .should_refresh(scrollbar_layout.hitbox.size)
7083 {
7084 return;
7085 }
7086
7087 let scrollbar_layout = scrollbar_layout.clone();
7088 let background_highlights = editor.background_highlights.clone();
7089 let snapshot = layout.position_map.snapshot.clone();
7090 let theme = cx.theme().clone();
7091 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
7092
7093 editor.scrollbar_marker_state.dirty = false;
7094 editor.scrollbar_marker_state.pending_refresh =
7095 Some(cx.spawn_in(window, async move |editor, cx| {
7096 let scrollbar_size = scrollbar_layout.hitbox.size;
7097 let scrollbar_markers = cx
7098 .background_spawn(async move {
7099 let max_point = snapshot.display_snapshot.buffer_snapshot().max_point();
7100 let mut marker_quads = Vec::new();
7101 if scrollbar_settings.git_diff {
7102 let marker_row_ranges =
7103 snapshot.buffer_snapshot().diff_hunks().map(|hunk| {
7104 let start_display_row =
7105 MultiBufferPoint::new(hunk.row_range.start.0, 0)
7106 .to_display_point(&snapshot.display_snapshot)
7107 .row();
7108 let mut end_display_row =
7109 MultiBufferPoint::new(hunk.row_range.end.0, 0)
7110 .to_display_point(&snapshot.display_snapshot)
7111 .row();
7112 if end_display_row != start_display_row {
7113 end_display_row.0 -= 1;
7114 }
7115 let color = match &hunk.status().kind {
7116 DiffHunkStatusKind::Added => {
7117 theme.colors().version_control_added
7118 }
7119 DiffHunkStatusKind::Modified => {
7120 theme.colors().version_control_modified
7121 }
7122 DiffHunkStatusKind::Deleted => {
7123 theme.colors().version_control_deleted
7124 }
7125 };
7126 ColoredRange {
7127 start: start_display_row,
7128 end: end_display_row,
7129 color,
7130 }
7131 });
7132
7133 marker_quads.extend(
7134 scrollbar_layout
7135 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
7136 );
7137 }
7138
7139 for (background_highlight_id, (_, background_ranges)) in
7140 background_highlights.iter()
7141 {
7142 let is_search_highlights = *background_highlight_id
7143 == HighlightKey::BufferSearchHighlights;
7144 let is_text_highlights =
7145 *background_highlight_id == HighlightKey::SelectedTextHighlight;
7146 let is_symbol_occurrences = *background_highlight_id
7147 == HighlightKey::DocumentHighlightRead
7148 || *background_highlight_id
7149 == HighlightKey::DocumentHighlightWrite;
7150 if (is_search_highlights && scrollbar_settings.search_results)
7151 || (is_text_highlights && scrollbar_settings.selected_text)
7152 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
7153 {
7154 let mut color = theme.status().info;
7155 if is_symbol_occurrences {
7156 color.fade_out(0.5);
7157 }
7158 let marker_row_ranges = background_ranges.iter().map(|range| {
7159 let display_start = range
7160 .start
7161 .to_display_point(&snapshot.display_snapshot);
7162 let display_end =
7163 range.end.to_display_point(&snapshot.display_snapshot);
7164 ColoredRange {
7165 start: display_start.row(),
7166 end: display_end.row(),
7167 color,
7168 }
7169 });
7170 marker_quads.extend(
7171 scrollbar_layout
7172 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
7173 );
7174 }
7175 }
7176
7177 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
7178 let diagnostics = snapshot
7179 .buffer_snapshot()
7180 .diagnostics_in_range::<Point>(Point::zero()..max_point)
7181 // Don't show diagnostics the user doesn't care about
7182 .filter(|diagnostic| {
7183 match (
7184 scrollbar_settings.diagnostics,
7185 diagnostic.diagnostic.severity,
7186 ) {
7187 (ScrollbarDiagnostics::All, _) => true,
7188 (
7189 ScrollbarDiagnostics::Error,
7190 lsp::DiagnosticSeverity::ERROR,
7191 ) => true,
7192 (
7193 ScrollbarDiagnostics::Warning,
7194 lsp::DiagnosticSeverity::ERROR
7195 | lsp::DiagnosticSeverity::WARNING,
7196 ) => true,
7197 (
7198 ScrollbarDiagnostics::Information,
7199 lsp::DiagnosticSeverity::ERROR
7200 | lsp::DiagnosticSeverity::WARNING
7201 | lsp::DiagnosticSeverity::INFORMATION,
7202 ) => true,
7203 (_, _) => false,
7204 }
7205 })
7206 // We want to sort by severity, in order to paint the most severe diagnostics last.
7207 .sorted_by_key(|diagnostic| {
7208 std::cmp::Reverse(diagnostic.diagnostic.severity)
7209 });
7210
7211 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
7212 let start_display = diagnostic
7213 .range
7214 .start
7215 .to_display_point(&snapshot.display_snapshot);
7216 let end_display = diagnostic
7217 .range
7218 .end
7219 .to_display_point(&snapshot.display_snapshot);
7220 let color = match diagnostic.diagnostic.severity {
7221 lsp::DiagnosticSeverity::ERROR => theme.status().error,
7222 lsp::DiagnosticSeverity::WARNING => theme.status().warning,
7223 lsp::DiagnosticSeverity::INFORMATION => theme.status().info,
7224 _ => theme.status().hint,
7225 };
7226 ColoredRange {
7227 start: start_display.row(),
7228 end: end_display.row(),
7229 color,
7230 }
7231 });
7232 marker_quads.extend(
7233 scrollbar_layout
7234 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
7235 );
7236 }
7237
7238 Arc::from(marker_quads)
7239 })
7240 .await;
7241
7242 editor.update(cx, |editor, cx| {
7243 editor.scrollbar_marker_state.markers = scrollbar_markers;
7244 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
7245 editor.scrollbar_marker_state.pending_refresh = None;
7246 cx.notify();
7247 })?;
7248
7249 Ok(())
7250 }));
7251 });
7252 }
7253
7254 fn paint_highlighted_range(
7255 &self,
7256 range: Range<DisplayPoint>,
7257 fill: bool,
7258 color: Hsla,
7259 corner_radius: Pixels,
7260 line_end_overshoot: Pixels,
7261 layout: &EditorLayout,
7262 window: &mut Window,
7263 ) {
7264 let start_row = layout.visible_display_row_range.start;
7265 let end_row = layout.visible_display_row_range.end;
7266 if range.start != range.end {
7267 let row_range = if range.end.column() == 0 {
7268 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
7269 } else {
7270 cmp::max(range.start.row(), start_row)
7271 ..cmp::min(range.end.row().next_row(), end_row)
7272 };
7273
7274 let highlighted_range = HighlightedRange {
7275 color,
7276 line_height: layout.position_map.line_height,
7277 corner_radius,
7278 start_y: layout.content_origin.y
7279 + Pixels::from(
7280 (row_range.start.as_f64() - layout.position_map.scroll_position.y)
7281 * ScrollOffset::from(layout.position_map.line_height),
7282 ),
7283 lines: row_range
7284 .iter_rows()
7285 .map(|row| {
7286 let line_layout =
7287 &layout.position_map.line_layouts[row.minus(start_row) as usize];
7288 let alignment_offset =
7289 line_layout.alignment_offset(layout.text_align, layout.content_width);
7290 HighlightedRangeLine {
7291 start_x: if row == range.start.row() {
7292 layout.content_origin.x
7293 + Pixels::from(
7294 ScrollPixelOffset::from(
7295 line_layout.x_for_index(range.start.column() as usize)
7296 + alignment_offset,
7297 ) - layout.position_map.scroll_pixel_position.x,
7298 )
7299 } else {
7300 layout.content_origin.x + alignment_offset
7301 - Pixels::from(layout.position_map.scroll_pixel_position.x)
7302 },
7303 end_x: if row == range.end.row() {
7304 layout.content_origin.x
7305 + Pixels::from(
7306 ScrollPixelOffset::from(
7307 line_layout.x_for_index(range.end.column() as usize)
7308 + alignment_offset,
7309 ) - layout.position_map.scroll_pixel_position.x,
7310 )
7311 } else {
7312 Pixels::from(
7313 ScrollPixelOffset::from(
7314 layout.content_origin.x
7315 + line_layout.width
7316 + alignment_offset
7317 + line_end_overshoot,
7318 ) - layout.position_map.scroll_pixel_position.x,
7319 )
7320 },
7321 }
7322 })
7323 .collect(),
7324 };
7325
7326 highlighted_range.paint(fill, layout.position_map.text_hitbox.bounds, window);
7327 }
7328 }
7329
7330 fn paint_inline_diagnostics(
7331 &mut self,
7332 layout: &mut EditorLayout,
7333 window: &mut Window,
7334 cx: &mut App,
7335 ) {
7336 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
7337 inline_diagnostic.1.paint(window, cx);
7338 }
7339 }
7340
7341 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7342 if let Some(mut blame_layout) = layout.inline_blame_layout.take() {
7343 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7344 blame_layout.element.paint(window, cx);
7345 })
7346 }
7347 }
7348
7349 fn paint_inline_code_actions(
7350 &mut self,
7351 layout: &mut EditorLayout,
7352 window: &mut Window,
7353 cx: &mut App,
7354 ) {
7355 if let Some(mut inline_code_actions) = layout.inline_code_actions.take() {
7356 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7357 inline_code_actions.paint(window, cx);
7358 })
7359 }
7360 }
7361
7362 fn paint_diff_hunk_controls(
7363 &mut self,
7364 layout: &mut EditorLayout,
7365 window: &mut Window,
7366 cx: &mut App,
7367 ) {
7368 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
7369 diff_hunk_control.paint(window, cx);
7370 }
7371 }
7372
7373 fn paint_minimap(&self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7374 if let Some(mut layout) = layout.minimap.take() {
7375 let minimap_hitbox = layout.thumb_layout.hitbox.clone();
7376 let dragging_minimap = self.editor.read(cx).scroll_manager.is_dragging_minimap();
7377
7378 window.paint_layer(layout.thumb_layout.hitbox.bounds, |window| {
7379 window.with_element_namespace("minimap", |window| {
7380 layout.minimap.paint(window, cx);
7381 if let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds {
7382 let minimap_thumb_color = match layout.thumb_layout.thumb_state {
7383 ScrollbarThumbState::Idle => {
7384 cx.theme().colors().minimap_thumb_background
7385 }
7386 ScrollbarThumbState::Hovered => {
7387 cx.theme().colors().minimap_thumb_hover_background
7388 }
7389 ScrollbarThumbState::Dragging => {
7390 cx.theme().colors().minimap_thumb_active_background
7391 }
7392 };
7393 let minimap_thumb_border = match layout.thumb_border_style {
7394 MinimapThumbBorder::Full => Edges::all(ScrollbarLayout::BORDER_WIDTH),
7395 MinimapThumbBorder::LeftOnly => Edges {
7396 left: ScrollbarLayout::BORDER_WIDTH,
7397 ..Default::default()
7398 },
7399 MinimapThumbBorder::LeftOpen => Edges {
7400 right: ScrollbarLayout::BORDER_WIDTH,
7401 top: ScrollbarLayout::BORDER_WIDTH,
7402 bottom: ScrollbarLayout::BORDER_WIDTH,
7403 ..Default::default()
7404 },
7405 MinimapThumbBorder::RightOpen => Edges {
7406 left: ScrollbarLayout::BORDER_WIDTH,
7407 top: ScrollbarLayout::BORDER_WIDTH,
7408 bottom: ScrollbarLayout::BORDER_WIDTH,
7409 ..Default::default()
7410 },
7411 MinimapThumbBorder::None => Default::default(),
7412 };
7413
7414 window.paint_layer(minimap_hitbox.bounds, |window| {
7415 window.paint_quad(quad(
7416 thumb_bounds,
7417 Corners::default(),
7418 minimap_thumb_color,
7419 minimap_thumb_border,
7420 cx.theme().colors().minimap_thumb_border,
7421 BorderStyle::Solid,
7422 ));
7423 });
7424 }
7425 });
7426 });
7427
7428 if dragging_minimap {
7429 window.set_window_cursor_style(CursorStyle::Arrow);
7430 } else {
7431 window.set_cursor_style(CursorStyle::Arrow, &minimap_hitbox);
7432 }
7433
7434 let minimap_axis = ScrollbarAxis::Vertical;
7435 let pixels_per_line = Pixels::from(
7436 ScrollPixelOffset::from(minimap_hitbox.size.height) / layout.max_scroll_top,
7437 )
7438 .min(layout.minimap_line_height);
7439
7440 let mut mouse_position = window.mouse_position();
7441
7442 window.on_mouse_event({
7443 let editor = self.editor.clone();
7444
7445 let minimap_hitbox = minimap_hitbox.clone();
7446
7447 move |event: &MouseMoveEvent, phase, window, cx| {
7448 if phase == DispatchPhase::Capture {
7449 return;
7450 }
7451
7452 editor.update(cx, |editor, cx| {
7453 if event.pressed_button == Some(MouseButton::Left)
7454 && editor.scroll_manager.is_dragging_minimap()
7455 {
7456 let old_position = mouse_position.along(minimap_axis);
7457 let new_position = event.position.along(minimap_axis);
7458 if (minimap_hitbox.origin.along(minimap_axis)
7459 ..minimap_hitbox.bottom_right().along(minimap_axis))
7460 .contains(&old_position)
7461 {
7462 let position =
7463 editor.scroll_position(cx).apply_along(minimap_axis, |p| {
7464 (p + ScrollPixelOffset::from(
7465 (new_position - old_position) / pixels_per_line,
7466 ))
7467 .max(0.)
7468 });
7469
7470 editor.set_scroll_position(position, window, cx);
7471 }
7472 cx.stop_propagation();
7473 } else if minimap_hitbox.is_hovered(window) {
7474 editor.scroll_manager.set_is_hovering_minimap_thumb(
7475 !event.dragging()
7476 && layout
7477 .thumb_layout
7478 .thumb_bounds
7479 .is_some_and(|bounds| bounds.contains(&event.position)),
7480 cx,
7481 );
7482
7483 // Stop hover events from propagating to the
7484 // underlying editor if the minimap hitbox is hovered
7485 if !event.dragging() {
7486 cx.stop_propagation();
7487 }
7488 } else {
7489 editor.scroll_manager.hide_minimap_thumb(cx);
7490 }
7491 mouse_position = event.position;
7492 });
7493 }
7494 });
7495
7496 if dragging_minimap {
7497 window.on_mouse_event({
7498 let editor = self.editor.clone();
7499 move |event: &MouseUpEvent, phase, window, cx| {
7500 if phase == DispatchPhase::Capture {
7501 return;
7502 }
7503
7504 editor.update(cx, |editor, cx| {
7505 if minimap_hitbox.is_hovered(window) {
7506 editor.scroll_manager.set_is_hovering_minimap_thumb(
7507 layout
7508 .thumb_layout
7509 .thumb_bounds
7510 .is_some_and(|bounds| bounds.contains(&event.position)),
7511 cx,
7512 );
7513 } else {
7514 editor.scroll_manager.hide_minimap_thumb(cx);
7515 }
7516 cx.stop_propagation();
7517 });
7518 }
7519 });
7520 } else {
7521 window.on_mouse_event({
7522 let editor = self.editor.clone();
7523
7524 move |event: &MouseDownEvent, phase, window, cx| {
7525 if phase == DispatchPhase::Capture || !minimap_hitbox.is_hovered(window) {
7526 return;
7527 }
7528
7529 let event_position = event.position;
7530
7531 let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds else {
7532 return;
7533 };
7534
7535 editor.update(cx, |editor, cx| {
7536 if !thumb_bounds.contains(&event_position) {
7537 let click_position =
7538 event_position.relative_to(&minimap_hitbox.origin).y;
7539
7540 let top_position = (click_position
7541 - thumb_bounds.size.along(minimap_axis) / 2.0)
7542 .max(Pixels::ZERO);
7543
7544 let scroll_offset = (layout.minimap_scroll_top
7545 + ScrollPixelOffset::from(
7546 top_position / layout.minimap_line_height,
7547 ))
7548 .min(layout.max_scroll_top);
7549
7550 let scroll_position = editor
7551 .scroll_position(cx)
7552 .apply_along(minimap_axis, |_| scroll_offset);
7553 editor.set_scroll_position(scroll_position, window, cx);
7554 }
7555
7556 editor.scroll_manager.set_is_dragging_minimap(cx);
7557 cx.stop_propagation();
7558 });
7559 }
7560 });
7561 }
7562 }
7563 }
7564
7565 fn paint_spacer_blocks(
7566 &mut self,
7567 layout: &mut EditorLayout,
7568 window: &mut Window,
7569 cx: &mut App,
7570 ) {
7571 for mut block in layout.spacer_blocks.drain(..) {
7572 let mut bounds = layout.hitbox.bounds;
7573 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
7574 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7575 block.element.paint(window, cx);
7576 })
7577 }
7578 }
7579
7580 fn paint_non_spacer_blocks(
7581 &mut self,
7582 layout: &mut EditorLayout,
7583 window: &mut Window,
7584 cx: &mut App,
7585 ) {
7586 for mut block in layout.blocks.drain(..) {
7587 if block.overlaps_gutter {
7588 block.element.paint(window, cx);
7589 } else {
7590 let mut bounds = layout.hitbox.bounds;
7591 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
7592 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7593 block.element.paint(window, cx);
7594 })
7595 }
7596 }
7597 }
7598
7599 fn paint_edit_prediction_popover(
7600 &mut self,
7601 layout: &mut EditorLayout,
7602 window: &mut Window,
7603 cx: &mut App,
7604 ) {
7605 if let Some(edit_prediction_popover) = layout.edit_prediction_popover.as_mut() {
7606 edit_prediction_popover.paint(window, cx);
7607 }
7608 }
7609
7610 fn paint_mouse_context_menu(
7611 &mut self,
7612 layout: &mut EditorLayout,
7613 window: &mut Window,
7614 cx: &mut App,
7615 ) {
7616 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
7617 mouse_context_menu.paint(window, cx);
7618 }
7619 }
7620
7621 fn paint_scroll_wheel_listener(
7622 &mut self,
7623 layout: &EditorLayout,
7624 window: &mut Window,
7625 cx: &mut App,
7626 ) {
7627 window.on_mouse_event({
7628 let position_map = layout.position_map.clone();
7629 let editor = self.editor.clone();
7630 let hitbox = layout.hitbox.clone();
7631 let mut delta = ScrollDelta::default();
7632
7633 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
7634 // accidentally turn off their scrolling.
7635 let base_scroll_sensitivity =
7636 EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
7637
7638 // Use a minimum fast_scroll_sensitivity for same reason above
7639 let fast_scroll_sensitivity = EditorSettings::get_global(cx)
7640 .fast_scroll_sensitivity
7641 .max(0.01);
7642
7643 move |event: &ScrollWheelEvent, phase, window, cx| {
7644 let scroll_sensitivity = {
7645 if event.modifiers.alt {
7646 fast_scroll_sensitivity
7647 } else {
7648 base_scroll_sensitivity
7649 }
7650 };
7651
7652 if phase == DispatchPhase::Bubble && hitbox.should_handle_scroll(window) {
7653 delta = delta.coalesce(event.delta);
7654 editor.update(cx, |editor, cx| {
7655 let position_map: &PositionMap = &position_map;
7656
7657 let line_height = position_map.line_height;
7658 let glyph_width = position_map.em_layout_width;
7659 let (delta, axis) = match delta {
7660 gpui::ScrollDelta::Pixels(mut pixels) => {
7661 //Trackpad
7662 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
7663 (pixels, axis)
7664 }
7665
7666 gpui::ScrollDelta::Lines(lines) => {
7667 //Not trackpad
7668 let pixels = point(lines.x * glyph_width, lines.y * line_height);
7669 (pixels, None)
7670 }
7671 };
7672
7673 let current_scroll_position = position_map.snapshot.scroll_position();
7674 let x = (current_scroll_position.x * ScrollPixelOffset::from(glyph_width)
7675 - ScrollPixelOffset::from(delta.x * scroll_sensitivity))
7676 / ScrollPixelOffset::from(glyph_width);
7677 let y = (current_scroll_position.y * ScrollPixelOffset::from(line_height)
7678 - ScrollPixelOffset::from(delta.y * scroll_sensitivity))
7679 / ScrollPixelOffset::from(line_height);
7680 let mut scroll_position =
7681 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
7682 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
7683 if forbid_vertical_scroll {
7684 scroll_position.y = current_scroll_position.y;
7685 }
7686
7687 if scroll_position != current_scroll_position {
7688 editor.scroll(scroll_position, axis, window, cx);
7689 cx.stop_propagation();
7690 } else if y < 0. {
7691 // Due to clamping, we may fail to detect cases of overscroll to the top;
7692 // We want the scroll manager to get an update in such cases and detect the change of direction
7693 // on the next frame.
7694 cx.notify();
7695 }
7696 });
7697 }
7698 }
7699 });
7700 }
7701
7702 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
7703 if layout.mode.is_minimap() {
7704 return;
7705 }
7706
7707 self.paint_scroll_wheel_listener(layout, window, cx);
7708
7709 window.on_mouse_event({
7710 let position_map = layout.position_map.clone();
7711 let editor = self.editor.clone();
7712 let line_numbers = layout.line_numbers.clone();
7713
7714 move |event: &MouseDownEvent, phase, window, cx| {
7715 if phase == DispatchPhase::Bubble {
7716 match event.button {
7717 MouseButton::Left => editor.update(cx, |editor, cx| {
7718 let pending_mouse_down = editor
7719 .pending_mouse_down
7720 .get_or_insert_with(Default::default)
7721 .clone();
7722
7723 *pending_mouse_down.borrow_mut() = Some(event.clone());
7724
7725 Self::mouse_left_down(
7726 editor,
7727 event,
7728 &position_map,
7729 line_numbers.as_ref(),
7730 window,
7731 cx,
7732 );
7733 }),
7734 MouseButton::Right => editor.update(cx, |editor, cx| {
7735 Self::mouse_right_down(editor, event, &position_map, window, cx);
7736 }),
7737 MouseButton::Middle => editor.update(cx, |editor, cx| {
7738 Self::mouse_middle_down(editor, event, &position_map, window, cx);
7739 }),
7740 _ => {}
7741 };
7742 }
7743 }
7744 });
7745
7746 window.on_mouse_event({
7747 let editor = self.editor.clone();
7748 let position_map = layout.position_map.clone();
7749
7750 move |event: &MouseUpEvent, phase, window, cx| {
7751 if phase == DispatchPhase::Bubble {
7752 editor.update(cx, |editor, cx| {
7753 Self::mouse_up(editor, event, &position_map, window, cx)
7754 });
7755 }
7756 }
7757 });
7758
7759 window.on_mouse_event({
7760 let editor = self.editor.clone();
7761 let position_map = layout.position_map.clone();
7762 let mut captured_mouse_down = None;
7763
7764 move |event: &MouseUpEvent, phase, window, cx| match phase {
7765 // Clear the pending mouse down during the capture phase,
7766 // so that it happens even if another event handler stops
7767 // propagation.
7768 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
7769 let pending_mouse_down = editor
7770 .pending_mouse_down
7771 .get_or_insert_with(Default::default)
7772 .clone();
7773
7774 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
7775 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
7776 captured_mouse_down = pending_mouse_down.take();
7777 window.refresh();
7778 }
7779 }),
7780 // Fire click handlers during the bubble phase.
7781 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
7782 if let Some(mouse_down) = captured_mouse_down.take() {
7783 let event = ClickEvent::Mouse(MouseClickEvent {
7784 down: mouse_down,
7785 up: event.clone(),
7786 });
7787 Self::click(editor, &event, &position_map, window, cx);
7788 }
7789 }),
7790 }
7791 });
7792
7793 window.on_mouse_event({
7794 let position_map = layout.position_map.clone();
7795 let editor = self.editor.clone();
7796
7797 move |event: &MousePressureEvent, phase, window, cx| {
7798 if phase == DispatchPhase::Bubble {
7799 editor.update(cx, |editor, cx| {
7800 Self::pressure_click(editor, &event, &position_map, window, cx);
7801 })
7802 }
7803 }
7804 });
7805
7806 window.on_mouse_event({
7807 let position_map = layout.position_map.clone();
7808 let editor = self.editor.clone();
7809 let split_side = self.split_side;
7810
7811 move |event: &MouseMoveEvent, phase, window, cx| {
7812 if phase == DispatchPhase::Bubble {
7813 editor.update(cx, |editor, cx| {
7814 if editor.hover_state.focused(window, cx) {
7815 return;
7816 }
7817 if event.pressed_button == Some(MouseButton::Left)
7818 || event.pressed_button == Some(MouseButton::Middle)
7819 {
7820 Self::mouse_dragged(editor, event, &position_map, window, cx)
7821 }
7822
7823 Self::mouse_moved(editor, event, &position_map, split_side, window, cx)
7824 });
7825 }
7826 }
7827 });
7828 }
7829
7830 fn shape_line_number(
7831 &self,
7832 text: SharedString,
7833 color: Hsla,
7834 window: &mut Window,
7835 ) -> ShapedLine {
7836 let run = TextRun {
7837 len: text.len(),
7838 font: self.style.text.font(),
7839 color,
7840 ..Default::default()
7841 };
7842 window.text_system().shape_line(
7843 text,
7844 self.style.text.font_size.to_pixels(window.rem_size()),
7845 &[run],
7846 None,
7847 )
7848 }
7849
7850 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
7851 let unstaged = status.has_secondary_hunk();
7852 let unstaged_hollow = matches!(
7853 ProjectSettings::get_global(cx).git.hunk_style,
7854 GitHunkStyleSetting::UnstagedHollow
7855 );
7856
7857 unstaged == unstaged_hollow
7858 }
7859
7860 #[cfg(debug_assertions)]
7861 fn layout_debug_ranges(
7862 selections: &mut Vec<(PlayerColor, Vec<SelectionLayout>)>,
7863 anchor_range: Range<Anchor>,
7864 display_snapshot: &DisplaySnapshot,
7865 cx: &App,
7866 ) {
7867 let theme = cx.theme();
7868 text::debug::GlobalDebugRanges::with_locked(|debug_ranges| {
7869 if debug_ranges.ranges.is_empty() {
7870 return;
7871 }
7872 let buffer_snapshot = &display_snapshot.buffer_snapshot();
7873 for (buffer, buffer_range, excerpt_id) in
7874 buffer_snapshot.range_to_buffer_ranges(anchor_range.start..=anchor_range.end)
7875 {
7876 let buffer_range =
7877 buffer.anchor_after(buffer_range.start)..buffer.anchor_before(buffer_range.end);
7878 selections.extend(debug_ranges.ranges.iter().flat_map(|debug_range| {
7879 let player_color = theme
7880 .players()
7881 .color_for_participant(debug_range.occurrence_index as u32 + 1);
7882 debug_range.ranges.iter().filter_map(move |range| {
7883 if range.start.buffer_id != Some(buffer.remote_id()) {
7884 return None;
7885 }
7886 let clipped_start = range.start.max(&buffer_range.start, buffer);
7887 let clipped_end = range.end.min(&buffer_range.end, buffer);
7888 let range = buffer_snapshot
7889 .anchor_range_in_excerpt(excerpt_id, *clipped_start..*clipped_end)?;
7890 let start = range.start.to_display_point(display_snapshot);
7891 let end = range.end.to_display_point(display_snapshot);
7892 let selection_layout = SelectionLayout {
7893 head: start,
7894 range: start..end,
7895 cursor_shape: CursorShape::Bar,
7896 is_newest: false,
7897 is_local: false,
7898 active_rows: start.row()..end.row(),
7899 user_name: Some(SharedString::new(debug_range.value.clone())),
7900 };
7901 Some((player_color, vec![selection_layout]))
7902 })
7903 }));
7904 }
7905 });
7906 }
7907}
7908
7909pub fn render_breadcrumb_text(
7910 mut segments: Vec<HighlightedText>,
7911 breadcrumb_font: Option<Font>,
7912 prefix: Option<gpui::AnyElement>,
7913 active_item: &dyn ItemHandle,
7914 multibuffer_header: bool,
7915 window: &mut Window,
7916 cx: &App,
7917) -> gpui::AnyElement {
7918 const MAX_SEGMENTS: usize = 12;
7919
7920 let element = h_flex().flex_grow().text_ui(cx);
7921
7922 let prefix_end_ix = cmp::min(segments.len(), MAX_SEGMENTS / 2);
7923 let suffix_start_ix = cmp::max(
7924 prefix_end_ix,
7925 segments.len().saturating_sub(MAX_SEGMENTS / 2),
7926 );
7927
7928 if suffix_start_ix > prefix_end_ix {
7929 segments.splice(
7930 prefix_end_ix..suffix_start_ix,
7931 Some(HighlightedText {
7932 text: "β―".into(),
7933 highlights: vec![],
7934 }),
7935 );
7936 }
7937
7938 let highlighted_segments = segments.into_iter().enumerate().map(|(index, segment)| {
7939 let mut text_style = window.text_style();
7940 if let Some(font) = &breadcrumb_font {
7941 text_style.font_family = font.family.clone();
7942 text_style.font_features = font.features.clone();
7943 text_style.font_style = font.style;
7944 text_style.font_weight = font.weight;
7945 }
7946 text_style.color = Color::Muted.color(cx);
7947
7948 if index == 0
7949 && !workspace::TabBarSettings::get_global(cx).show
7950 && active_item.is_dirty(cx)
7951 && let Some(styled_element) = apply_dirty_filename_style(&segment, &text_style, cx)
7952 {
7953 return styled_element;
7954 }
7955
7956 StyledText::new(segment.text.replace('\n', " "))
7957 .with_default_highlights(&text_style, segment.highlights)
7958 .into_any()
7959 });
7960
7961 let breadcrumbs = Itertools::intersperse_with(highlighted_segments, || {
7962 Label::new("βΊ").color(Color::Placeholder).into_any_element()
7963 });
7964
7965 let breadcrumbs_stack = h_flex()
7966 .gap_1()
7967 .when(multibuffer_header, |this| {
7968 this.pl_2()
7969 .border_l_1()
7970 .border_color(cx.theme().colors().border.opacity(0.6))
7971 })
7972 .children(breadcrumbs);
7973
7974 let breadcrumbs = if let Some(prefix) = prefix {
7975 h_flex().gap_1p5().child(prefix).child(breadcrumbs_stack)
7976 } else {
7977 breadcrumbs_stack
7978 };
7979
7980 let editor = active_item
7981 .downcast::<Editor>()
7982 .map(|editor| editor.downgrade());
7983
7984 let has_project_path = active_item.project_path(cx).is_some();
7985
7986 match editor {
7987 Some(editor) => element
7988 .id("breadcrumb_container")
7989 .when(!multibuffer_header, |this| this.overflow_x_scroll())
7990 .child(
7991 ButtonLike::new("toggle outline view")
7992 .child(breadcrumbs)
7993 .when(multibuffer_header, |this| {
7994 this.style(ButtonStyle::Transparent)
7995 })
7996 .when(!multibuffer_header, |this| {
7997 let focus_handle = editor.upgrade().unwrap().focus_handle(&cx);
7998
7999 this.tooltip(Tooltip::element(move |_window, cx| {
8000 v_flex()
8001 .gap_1()
8002 .child(
8003 h_flex()
8004 .gap_1()
8005 .justify_between()
8006 .child(Label::new("Show Symbol Outline"))
8007 .child(ui::KeyBinding::for_action_in(
8008 &zed_actions::outline::ToggleOutline,
8009 &focus_handle,
8010 cx,
8011 )),
8012 )
8013 .when(has_project_path, |this| {
8014 this.child(
8015 h_flex()
8016 .gap_1()
8017 .justify_between()
8018 .pt_1()
8019 .border_t_1()
8020 .border_color(cx.theme().colors().border_variant)
8021 .child(Label::new("Right-Click to Copy Path")),
8022 )
8023 })
8024 .into_any_element()
8025 }))
8026 .on_click({
8027 let editor = editor.clone();
8028 move |_, window, cx| {
8029 if let Some((editor, callback)) = editor
8030 .upgrade()
8031 .zip(zed_actions::outline::TOGGLE_OUTLINE.get())
8032 {
8033 callback(editor.to_any_view(), window, cx);
8034 }
8035 }
8036 })
8037 .when(has_project_path, |this| {
8038 this.on_right_click({
8039 let editor = editor.clone();
8040 move |_, _, cx| {
8041 if let Some(abs_path) = editor.upgrade().and_then(|editor| {
8042 editor.update(cx, |editor, cx| {
8043 editor.target_file_abs_path(cx)
8044 })
8045 }) {
8046 if let Some(path_str) = abs_path.to_str() {
8047 cx.write_to_clipboard(ClipboardItem::new_string(
8048 path_str.to_string(),
8049 ));
8050 }
8051 }
8052 }
8053 })
8054 })
8055 }),
8056 )
8057 .into_any_element(),
8058 None => element
8059 .h(rems_from_px(22.)) // Match the height and padding of the `ButtonLike` in the other arm.
8060 .pl_1()
8061 .child(breadcrumbs)
8062 .into_any_element(),
8063 }
8064}
8065
8066fn apply_dirty_filename_style(
8067 segment: &HighlightedText,
8068 text_style: &gpui::TextStyle,
8069 cx: &App,
8070) -> Option<gpui::AnyElement> {
8071 let text = segment.text.replace('\n', " ");
8072
8073 let filename_position = std::path::Path::new(segment.text.as_ref())
8074 .file_name()
8075 .and_then(|f| {
8076 let filename_str = f.to_string_lossy();
8077 segment.text.rfind(filename_str.as_ref())
8078 })?;
8079
8080 let bold_weight = FontWeight::BOLD;
8081 let default_color = Color::Default.color(cx);
8082
8083 if filename_position == 0 {
8084 let mut filename_style = text_style.clone();
8085 filename_style.font_weight = bold_weight;
8086 filename_style.color = default_color;
8087
8088 return Some(
8089 StyledText::new(text)
8090 .with_default_highlights(&filename_style, [])
8091 .into_any(),
8092 );
8093 }
8094
8095 let highlight_style = gpui::HighlightStyle {
8096 font_weight: Some(bold_weight),
8097 color: Some(default_color),
8098 ..Default::default()
8099 };
8100
8101 let highlight = vec![(filename_position..text.len(), highlight_style)];
8102 Some(
8103 StyledText::new(text)
8104 .with_default_highlights(text_style, highlight)
8105 .into_any(),
8106 )
8107}
8108
8109fn file_status_label_color(file_status: Option<FileStatus>) -> Color {
8110 file_status.map_or(Color::Default, |status| {
8111 if status.is_conflicted() {
8112 Color::Conflict
8113 } else if status.is_modified() {
8114 Color::Modified
8115 } else if status.is_deleted() {
8116 Color::Disabled
8117 } else if status.is_created() {
8118 Color::Created
8119 } else {
8120 Color::Default
8121 }
8122 })
8123}
8124
8125pub(crate) fn header_jump_data(
8126 editor_snapshot: &EditorSnapshot,
8127 block_row_start: DisplayRow,
8128 height: u32,
8129 first_excerpt: &ExcerptInfo,
8130 latest_selection_anchors: &HashMap<BufferId, Anchor>,
8131) -> JumpData {
8132 let jump_target = if let Some(anchor) = latest_selection_anchors.get(&first_excerpt.buffer_id)
8133 && let Some(range) = editor_snapshot.context_range_for_excerpt(anchor.excerpt_id)
8134 && let Some(buffer) = editor_snapshot
8135 .buffer_snapshot()
8136 .buffer_for_excerpt(anchor.excerpt_id)
8137 {
8138 JumpTargetInExcerptInput {
8139 id: anchor.excerpt_id,
8140 buffer,
8141 excerpt_start_anchor: range.start,
8142 jump_anchor: anchor.text_anchor,
8143 }
8144 } else {
8145 JumpTargetInExcerptInput {
8146 id: first_excerpt.id,
8147 buffer: &first_excerpt.buffer,
8148 excerpt_start_anchor: first_excerpt.range.context.start,
8149 jump_anchor: first_excerpt.range.primary.start,
8150 }
8151 };
8152 header_jump_data_inner(editor_snapshot, block_row_start, height, &jump_target)
8153}
8154
8155struct JumpTargetInExcerptInput<'a> {
8156 id: ExcerptId,
8157 buffer: &'a language::BufferSnapshot,
8158 excerpt_start_anchor: text::Anchor,
8159 jump_anchor: text::Anchor,
8160}
8161
8162fn header_jump_data_inner(
8163 snapshot: &EditorSnapshot,
8164 block_row_start: DisplayRow,
8165 height: u32,
8166 for_excerpt: &JumpTargetInExcerptInput,
8167) -> JumpData {
8168 let buffer = &for_excerpt.buffer;
8169 let jump_position = language::ToPoint::to_point(&for_excerpt.jump_anchor, buffer);
8170 let excerpt_start = for_excerpt.excerpt_start_anchor;
8171 let rows_from_excerpt_start = if for_excerpt.jump_anchor == excerpt_start {
8172 0
8173 } else {
8174 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
8175 jump_position.row.saturating_sub(excerpt_start_point.row)
8176 };
8177
8178 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
8179 .saturating_sub(
8180 snapshot
8181 .scroll_anchor
8182 .scroll_position(&snapshot.display_snapshot)
8183 .y as u32,
8184 );
8185
8186 JumpData::MultiBufferPoint {
8187 excerpt_id: for_excerpt.id,
8188 anchor: for_excerpt.jump_anchor,
8189 position: jump_position,
8190 line_offset_from_top,
8191 }
8192}
8193
8194pub(crate) fn render_buffer_header(
8195 editor: &Entity<Editor>,
8196 for_excerpt: &ExcerptInfo,
8197 is_folded: bool,
8198 is_selected: bool,
8199 is_sticky: bool,
8200 jump_data: JumpData,
8201 window: &mut Window,
8202 cx: &mut App,
8203) -> impl IntoElement {
8204 let editor_read = editor.read(cx);
8205 let multi_buffer = editor_read.buffer.read(cx);
8206 let is_read_only = editor_read.read_only(cx);
8207 let editor_handle: &dyn ItemHandle = editor;
8208
8209 let breadcrumbs = if is_selected {
8210 editor_read.breadcrumbs_inner(cx)
8211 } else {
8212 None
8213 };
8214
8215 let file_status = multi_buffer
8216 .all_diff_hunks_expanded()
8217 .then(|| editor_read.status_for_buffer_id(for_excerpt.buffer_id, cx))
8218 .flatten();
8219 let indicator = multi_buffer
8220 .buffer(for_excerpt.buffer_id)
8221 .and_then(|buffer| {
8222 let buffer = buffer.read(cx);
8223 let indicator_color = match (buffer.has_conflict(), buffer.is_dirty()) {
8224 (true, _) => Some(Color::Warning),
8225 (_, true) => Some(Color::Accent),
8226 (false, false) => None,
8227 };
8228 indicator_color.map(|indicator_color| Indicator::dot().color(indicator_color))
8229 });
8230
8231 let include_root = editor_read
8232 .project
8233 .as_ref()
8234 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
8235 .unwrap_or_default();
8236 let file = for_excerpt.buffer.file();
8237 let can_open_excerpts = file.is_none_or(|file| file.can_open());
8238 let path_style = file.map(|file| file.path_style(cx));
8239 let relative_path = for_excerpt.buffer.resolve_file_path(include_root, cx);
8240 let (parent_path, filename) = if let Some(path) = &relative_path {
8241 if let Some(path_style) = path_style {
8242 let (dir, file_name) = path_style.split(path);
8243 (dir.map(|dir| dir.to_owned()), Some(file_name.to_owned()))
8244 } else {
8245 (None, Some(path.clone()))
8246 }
8247 } else {
8248 (None, None)
8249 };
8250 let focus_handle = editor_read.focus_handle(cx);
8251 let colors = cx.theme().colors();
8252
8253 let header = div()
8254 .id(("buffer-header", for_excerpt.buffer_id.to_proto()))
8255 .p(BUFFER_HEADER_PADDING)
8256 .w_full()
8257 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
8258 .child(
8259 h_flex()
8260 .group("buffer-header-group")
8261 .size_full()
8262 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
8263 .pl_1()
8264 .pr_2()
8265 .rounded_sm()
8266 .gap_1p5()
8267 .when(is_sticky, |el| el.shadow_md())
8268 .border_1()
8269 .map(|border| {
8270 let border_color =
8271 if is_selected && is_folded && focus_handle.contains_focused(window, cx) {
8272 colors.border_focused
8273 } else {
8274 colors.border
8275 };
8276 border.border_color(border_color)
8277 })
8278 .bg(colors.editor_subheader_background)
8279 .hover(|style| style.bg(colors.element_hover))
8280 .map(|header| {
8281 let editor = editor.clone();
8282 let buffer_id = for_excerpt.buffer_id;
8283 let toggle_chevron_icon =
8284 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
8285 let button_size = rems_from_px(28.);
8286
8287 header.child(
8288 div()
8289 .hover(|style| style.bg(colors.element_selected))
8290 .rounded_xs()
8291 .child(
8292 ButtonLike::new("toggle-buffer-fold")
8293 .style(ButtonStyle::Transparent)
8294 .height(button_size.into())
8295 .width(button_size)
8296 .children(toggle_chevron_icon)
8297 .tooltip({
8298 let focus_handle = focus_handle.clone();
8299 let is_folded_for_tooltip = is_folded;
8300 move |_window, cx| {
8301 Tooltip::with_meta_in(
8302 if is_folded_for_tooltip {
8303 "Unfold Excerpt"
8304 } else {
8305 "Fold Excerpt"
8306 },
8307 Some(&ToggleFold),
8308 format!(
8309 "{} to toggle all",
8310 text_for_keystroke(
8311 &Modifiers::alt(),
8312 "click",
8313 cx
8314 )
8315 ),
8316 &focus_handle,
8317 cx,
8318 )
8319 }
8320 })
8321 .on_click(move |event, window, cx| {
8322 if event.modifiers().alt {
8323 editor.update(cx, |editor, cx| {
8324 editor.toggle_fold_all(&ToggleFoldAll, window, cx);
8325 });
8326 } else {
8327 if is_folded {
8328 editor.update(cx, |editor, cx| {
8329 editor.unfold_buffer(buffer_id, cx);
8330 });
8331 } else {
8332 editor.update(cx, |editor, cx| {
8333 editor.fold_buffer(buffer_id, cx);
8334 });
8335 }
8336 }
8337 }),
8338 ),
8339 )
8340 })
8341 .children(
8342 editor_read
8343 .addons
8344 .values()
8345 .filter_map(|addon| {
8346 addon.render_buffer_header_controls(for_excerpt, window, cx)
8347 })
8348 .take(1),
8349 )
8350 .when(!is_read_only, |this| {
8351 this.child(
8352 h_flex()
8353 .size_3()
8354 .justify_center()
8355 .flex_shrink_0()
8356 .children(indicator),
8357 )
8358 })
8359 .child(
8360 h_flex()
8361 .cursor_pointer()
8362 .id("path_header_block")
8363 .min_w_0()
8364 .size_full()
8365 .gap_1()
8366 .justify_between()
8367 .overflow_hidden()
8368 .child(h_flex().min_w_0().flex_1().gap_0p5().overflow_hidden().map(
8369 |path_header| {
8370 let filename = filename
8371 .map(SharedString::from)
8372 .unwrap_or_else(|| "untitled".into());
8373
8374 let full_path = match parent_path.as_deref() {
8375 Some(parent) if !parent.is_empty() => {
8376 format!("{}{}", parent, filename.as_str())
8377 }
8378 _ => filename.as_str().to_string(),
8379 };
8380
8381 path_header
8382 .child(
8383 ButtonLike::new("filename-button")
8384 .when(ItemSettings::get_global(cx).file_icons, |this| {
8385 let path = path::Path::new(filename.as_str());
8386 let icon = FileIcons::get_icon(path, cx)
8387 .unwrap_or_default();
8388
8389 this.child(
8390 Icon::from_path(icon).color(Color::Muted),
8391 )
8392 })
8393 .child(
8394 Label::new(filename)
8395 .single_line()
8396 .color(file_status_label_color(file_status))
8397 .buffer_font(cx)
8398 .when(
8399 file_status.is_some_and(|s| s.is_deleted()),
8400 |label| label.strikethrough(),
8401 ),
8402 )
8403 .tooltip(move |_, cx| {
8404 Tooltip::with_meta(
8405 "Open File",
8406 None,
8407 full_path.clone(),
8408 cx,
8409 )
8410 })
8411 .on_click(window.listener_for(editor, {
8412 let jump_data = jump_data.clone();
8413 move |editor, e: &ClickEvent, window, cx| {
8414 editor.open_excerpts_common(
8415 Some(jump_data.clone()),
8416 e.modifiers().secondary(),
8417 window,
8418 cx,
8419 );
8420 }
8421 })),
8422 )
8423 .when_some(parent_path, |then, path| {
8424 then.child(
8425 Label::new(path)
8426 .buffer_font(cx)
8427 .truncate_start()
8428 .color(
8429 if file_status
8430 .is_some_and(FileStatus::is_deleted)
8431 {
8432 Color::Custom(colors.text_disabled)
8433 } else {
8434 Color::Custom(colors.text_muted)
8435 },
8436 ),
8437 )
8438 })
8439 .when(!for_excerpt.buffer.capability.editable(), |el| {
8440 el.child(Icon::new(IconName::FileLock).color(Color::Muted))
8441 })
8442 .when_some(breadcrumbs, |then, breadcrumbs| {
8443 let font = theme::ThemeSettings::get_global(cx)
8444 .buffer_font
8445 .clone();
8446 then.child(render_breadcrumb_text(
8447 breadcrumbs,
8448 Some(font),
8449 None,
8450 editor_handle,
8451 true,
8452 window,
8453 cx,
8454 ))
8455 })
8456 },
8457 ))
8458 .when(can_open_excerpts && relative_path.is_some(), |this| {
8459 this.child(
8460 div()
8461 .when(!is_selected, |this| {
8462 this.visible_on_hover("buffer-header-group")
8463 })
8464 .child(
8465 Button::new("open-file-button", "Open File")
8466 .style(ButtonStyle::OutlinedGhost)
8467 .when(is_selected, |this| {
8468 this.key_binding(KeyBinding::for_action_in(
8469 &OpenExcerpts,
8470 &focus_handle,
8471 cx,
8472 ))
8473 })
8474 .on_click(window.listener_for(editor, {
8475 let jump_data = jump_data.clone();
8476 move |editor, e: &ClickEvent, window, cx| {
8477 editor.open_excerpts_common(
8478 Some(jump_data.clone()),
8479 e.modifiers().secondary(),
8480 window,
8481 cx,
8482 );
8483 }
8484 })),
8485 ),
8486 )
8487 })
8488 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
8489 .on_click(window.listener_for(editor, {
8490 let buffer_id = for_excerpt.buffer_id;
8491 move |editor, e: &ClickEvent, window, cx| {
8492 if e.modifiers().alt {
8493 editor.open_excerpts_common(
8494 Some(jump_data.clone()),
8495 e.modifiers().secondary(),
8496 window,
8497 cx,
8498 );
8499 return;
8500 }
8501
8502 if is_folded {
8503 editor.unfold_buffer(buffer_id, cx);
8504 } else {
8505 editor.fold_buffer(buffer_id, cx);
8506 }
8507 }
8508 })),
8509 ),
8510 );
8511
8512 let file = for_excerpt.buffer.file().cloned();
8513 let editor = editor.clone();
8514
8515 right_click_menu("buffer-header-context-menu")
8516 .trigger(move |_, _, _| header)
8517 .menu(move |window, cx| {
8518 let menu_context = focus_handle.clone();
8519 let editor = editor.clone();
8520 let file = file.clone();
8521 ContextMenu::build(window, cx, move |mut menu, window, cx| {
8522 if let Some(file) = file
8523 && let Some(project) = editor.read(cx).project()
8524 && let Some(worktree) =
8525 project.read(cx).worktree_for_id(file.worktree_id(cx), cx)
8526 {
8527 let path_style = file.path_style(cx);
8528 let worktree = worktree.read(cx);
8529 let relative_path = file.path();
8530 let entry_for_path = worktree.entry_for_path(relative_path);
8531 let abs_path = entry_for_path.map(|e| {
8532 e.canonical_path
8533 .as_deref()
8534 .map_or_else(|| worktree.absolutize(relative_path), Path::to_path_buf)
8535 });
8536 let has_relative_path = worktree.root_entry().is_some_and(Entry::is_dir);
8537
8538 let parent_abs_path = abs_path
8539 .as_ref()
8540 .and_then(|abs_path| Some(abs_path.parent()?.to_path_buf()));
8541 let relative_path = has_relative_path
8542 .then_some(relative_path)
8543 .map(ToOwned::to_owned);
8544
8545 let visible_in_project_panel = relative_path.is_some() && worktree.is_visible();
8546 let reveal_in_project_panel = entry_for_path
8547 .filter(|_| visible_in_project_panel)
8548 .map(|entry| entry.id);
8549 menu = menu
8550 .when_some(abs_path, |menu, abs_path| {
8551 menu.entry(
8552 "Copy Path",
8553 Some(Box::new(zed_actions::workspace::CopyPath)),
8554 window.handler_for(&editor, move |_, _, cx| {
8555 cx.write_to_clipboard(ClipboardItem::new_string(
8556 abs_path.to_string_lossy().into_owned(),
8557 ));
8558 }),
8559 )
8560 })
8561 .when_some(relative_path, |menu, relative_path| {
8562 menu.entry(
8563 "Copy Relative Path",
8564 Some(Box::new(zed_actions::workspace::CopyRelativePath)),
8565 window.handler_for(&editor, move |_, _, cx| {
8566 cx.write_to_clipboard(ClipboardItem::new_string(
8567 relative_path.display(path_style).to_string(),
8568 ));
8569 }),
8570 )
8571 })
8572 .when(
8573 reveal_in_project_panel.is_some() || parent_abs_path.is_some(),
8574 |menu| menu.separator(),
8575 )
8576 .when_some(reveal_in_project_panel, |menu, entry_id| {
8577 menu.entry(
8578 "Reveal In Project Panel",
8579 Some(Box::new(RevealInProjectPanel::default())),
8580 window.handler_for(&editor, move |editor, _, cx| {
8581 if let Some(project) = &mut editor.project {
8582 project.update(cx, |_, cx| {
8583 cx.emit(project::Event::RevealInProjectPanel(entry_id))
8584 });
8585 }
8586 }),
8587 )
8588 })
8589 .when_some(parent_abs_path, |menu, parent_abs_path| {
8590 menu.entry(
8591 "Open in Terminal",
8592 Some(Box::new(OpenInTerminal)),
8593 window.handler_for(&editor, move |_, window, cx| {
8594 window.dispatch_action(
8595 OpenTerminal {
8596 working_directory: parent_abs_path.clone(),
8597 local: false,
8598 }
8599 .boxed_clone(),
8600 cx,
8601 );
8602 }),
8603 )
8604 });
8605 }
8606
8607 menu.context(menu_context)
8608 })
8609 })
8610}
8611
8612fn prepaint_gutter_button(
8613 mut button: AnyElement,
8614 row: DisplayRow,
8615 line_height: Pixels,
8616 gutter_dimensions: &GutterDimensions,
8617 scroll_position: gpui::Point<ScrollOffset>,
8618 gutter_hitbox: &Hitbox,
8619 window: &mut Window,
8620 cx: &mut App,
8621) -> AnyElement {
8622 let available_space = size(
8623 AvailableSpace::MinContent,
8624 AvailableSpace::Definite(line_height),
8625 );
8626 let indicator_size = button.layout_as_root(available_space, window, cx);
8627 let git_gutter_width = EditorElement::gutter_strip_width(line_height)
8628 + gutter_dimensions
8629 .git_blame_entries_width
8630 .unwrap_or_default();
8631
8632 let x = git_gutter_width + px(2.);
8633
8634 let mut y =
8635 Pixels::from((row.as_f64() - scroll_position.y) * ScrollPixelOffset::from(line_height));
8636 y += (line_height - indicator_size.height) / 2.;
8637
8638 button.prepaint_as_root(
8639 gutter_hitbox.origin + point(x, y),
8640 available_space,
8641 window,
8642 cx,
8643 );
8644 button
8645}
8646
8647fn render_inline_blame_entry(
8648 blame_entry: BlameEntry,
8649 style: &EditorStyle,
8650 cx: &mut App,
8651) -> Option<AnyElement> {
8652 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
8653 renderer.render_inline_blame_entry(&style.text, blame_entry, cx)
8654}
8655
8656fn render_blame_entry_popover(
8657 blame_entry: BlameEntry,
8658 scroll_handle: ScrollHandle,
8659 commit_message: Option<ParsedCommitMessage>,
8660 markdown: Entity<Markdown>,
8661 workspace: WeakEntity<Workspace>,
8662 blame: &Entity<GitBlame>,
8663 buffer: BufferId,
8664 window: &mut Window,
8665 cx: &mut App,
8666) -> Option<AnyElement> {
8667 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
8668 let blame = blame.read(cx);
8669 let repository = blame.repository(cx, buffer)?;
8670 renderer.render_blame_entry_popover(
8671 blame_entry,
8672 scroll_handle,
8673 commit_message,
8674 markdown,
8675 repository,
8676 workspace,
8677 window,
8678 cx,
8679 )
8680}
8681
8682fn render_blame_entry(
8683 ix: usize,
8684 blame: &Entity<GitBlame>,
8685 blame_entry: BlameEntry,
8686 style: &EditorStyle,
8687 last_used_color: &mut Option<(Hsla, Oid)>,
8688 editor: Entity<Editor>,
8689 workspace: Entity<Workspace>,
8690 buffer: BufferId,
8691 renderer: &dyn BlameRenderer,
8692 window: &mut Window,
8693 cx: &mut App,
8694) -> Option<AnyElement> {
8695 let index: u32 = blame_entry.sha.into();
8696 let mut sha_color = cx.theme().players().color_for_participant(index).cursor;
8697
8698 // If the last color we used is the same as the one we get for this line, but
8699 // the commit SHAs are different, then we try again to get a different color.
8700 if let Some((color, sha)) = *last_used_color
8701 && sha != blame_entry.sha
8702 && color == sha_color
8703 {
8704 sha_color = cx.theme().players().color_for_participant(index + 1).cursor;
8705 }
8706 last_used_color.replace((sha_color, blame_entry.sha));
8707
8708 let blame = blame.read(cx);
8709 let details = blame.details_for_entry(buffer, &blame_entry);
8710 let repository = blame.repository(cx, buffer)?;
8711 renderer.render_blame_entry(
8712 &style.text,
8713 blame_entry,
8714 details,
8715 repository,
8716 workspace.downgrade(),
8717 editor,
8718 ix,
8719 sha_color,
8720 window,
8721 cx,
8722 )
8723}
8724
8725#[derive(Debug)]
8726pub(crate) struct LineWithInvisibles {
8727 fragments: SmallVec<[LineFragment; 1]>,
8728 invisibles: Vec<Invisible>,
8729 len: usize,
8730 pub(crate) width: Pixels,
8731 font_size: Pixels,
8732}
8733
8734enum LineFragment {
8735 Text(ShapedLine),
8736 Element {
8737 id: ChunkRendererId,
8738 element: Option<AnyElement>,
8739 size: Size<Pixels>,
8740 len: usize,
8741 },
8742}
8743
8744impl fmt::Debug for LineFragment {
8745 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
8746 match self {
8747 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
8748 LineFragment::Element { size, len, .. } => f
8749 .debug_struct("Element")
8750 .field("size", size)
8751 .field("len", len)
8752 .finish(),
8753 }
8754 }
8755}
8756
8757impl LineWithInvisibles {
8758 fn from_chunks<'a>(
8759 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
8760 editor_style: &EditorStyle,
8761 max_line_len: usize,
8762 max_line_count: usize,
8763 editor_mode: &EditorMode,
8764 text_width: Pixels,
8765 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8766 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
8767 window: &mut Window,
8768 cx: &mut App,
8769 ) -> Vec<Self> {
8770 let text_style = &editor_style.text;
8771 let mut layouts = Vec::with_capacity(max_line_count);
8772 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
8773 let mut line = String::new();
8774 let mut invisibles = Vec::new();
8775 let mut width = Pixels::ZERO;
8776 let mut len = 0;
8777 let mut styles = Vec::new();
8778 let mut non_whitespace_added = false;
8779 let mut row = 0;
8780 let mut line_exceeded_max_len = false;
8781 let font_size = text_style.font_size.to_pixels(window.rem_size());
8782 let min_contrast = EditorSettings::get_global(cx).minimum_contrast_for_highlights;
8783
8784 let ellipsis = SharedString::from("β―");
8785
8786 for highlighted_chunk in chunks.chain([HighlightedChunk {
8787 text: "\n",
8788 style: None,
8789 is_tab: false,
8790 is_inlay: false,
8791 replacement: None,
8792 }]) {
8793 if let Some(replacement) = highlighted_chunk.replacement {
8794 if !line.is_empty() {
8795 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8796 let text_runs: &[TextRun] = if segments.is_empty() {
8797 &styles
8798 } else {
8799 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8800 };
8801 let shaped_line = window.text_system().shape_line(
8802 line.clone().into(),
8803 font_size,
8804 text_runs,
8805 None,
8806 );
8807 width += shaped_line.width;
8808 len += shaped_line.len;
8809 fragments.push(LineFragment::Text(shaped_line));
8810 line.clear();
8811 styles.clear();
8812 }
8813
8814 match replacement {
8815 ChunkReplacement::Renderer(renderer) => {
8816 let available_width = if renderer.constrain_width {
8817 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
8818 ellipsis.clone()
8819 } else {
8820 SharedString::from(Arc::from(highlighted_chunk.text))
8821 };
8822 let shaped_line = window.text_system().shape_line(
8823 chunk,
8824 font_size,
8825 &[text_style.to_run(highlighted_chunk.text.len())],
8826 None,
8827 );
8828 AvailableSpace::Definite(shaped_line.width)
8829 } else {
8830 AvailableSpace::MinContent
8831 };
8832
8833 let mut element = (renderer.render)(&mut ChunkRendererContext {
8834 context: cx,
8835 window,
8836 max_width: text_width,
8837 });
8838 let line_height = text_style.line_height_in_pixels(window.rem_size());
8839 let size = element.layout_as_root(
8840 size(available_width, AvailableSpace::Definite(line_height)),
8841 window,
8842 cx,
8843 );
8844
8845 width += size.width;
8846 len += highlighted_chunk.text.len();
8847 fragments.push(LineFragment::Element {
8848 id: renderer.id,
8849 element: Some(element),
8850 size,
8851 len: highlighted_chunk.text.len(),
8852 });
8853 }
8854 ChunkReplacement::Str(x) => {
8855 let text_style = if let Some(style) = highlighted_chunk.style {
8856 Cow::Owned(text_style.clone().highlight(style))
8857 } else {
8858 Cow::Borrowed(text_style)
8859 };
8860
8861 let run = TextRun {
8862 len: x.len(),
8863 font: text_style.font(),
8864 color: text_style.color,
8865 background_color: text_style.background_color,
8866 underline: text_style.underline,
8867 strikethrough: text_style.strikethrough,
8868 };
8869 let line_layout = window
8870 .text_system()
8871 .shape_line(x, font_size, &[run], None)
8872 .with_len(highlighted_chunk.text.len());
8873
8874 width += line_layout.width;
8875 len += highlighted_chunk.text.len();
8876 fragments.push(LineFragment::Text(line_layout))
8877 }
8878 }
8879 } else {
8880 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
8881 if ix > 0 {
8882 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8883 let text_runs = if segments.is_empty() {
8884 &styles
8885 } else {
8886 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8887 };
8888 let shaped_line = window.text_system().shape_line(
8889 line.clone().into(),
8890 font_size,
8891 text_runs,
8892 None,
8893 );
8894 width += shaped_line.width;
8895 len += shaped_line.len;
8896 fragments.push(LineFragment::Text(shaped_line));
8897 layouts.push(Self {
8898 width: mem::take(&mut width),
8899 len: mem::take(&mut len),
8900 fragments: mem::take(&mut fragments),
8901 invisibles: std::mem::take(&mut invisibles),
8902 font_size,
8903 });
8904
8905 line.clear();
8906 styles.clear();
8907 row += 1;
8908 line_exceeded_max_len = false;
8909 non_whitespace_added = false;
8910 if row == max_line_count {
8911 return layouts;
8912 }
8913 }
8914
8915 if !line_chunk.is_empty() && !line_exceeded_max_len {
8916 let text_style = if let Some(style) = highlighted_chunk.style {
8917 Cow::Owned(text_style.clone().highlight(style))
8918 } else {
8919 Cow::Borrowed(text_style)
8920 };
8921
8922 if line.len() + line_chunk.len() > max_line_len {
8923 let mut chunk_len = max_line_len - line.len();
8924 while !line_chunk.is_char_boundary(chunk_len) {
8925 chunk_len -= 1;
8926 }
8927 line_chunk = &line_chunk[..chunk_len];
8928 line_exceeded_max_len = true;
8929 }
8930
8931 styles.push(TextRun {
8932 len: line_chunk.len(),
8933 font: text_style.font(),
8934 color: text_style.color,
8935 background_color: text_style.background_color,
8936 underline: text_style.underline,
8937 strikethrough: text_style.strikethrough,
8938 });
8939
8940 if editor_mode.is_full() && !highlighted_chunk.is_inlay {
8941 // Line wrap pads its contents with fake whitespaces,
8942 // avoid printing them
8943 let is_soft_wrapped = is_row_soft_wrapped(row);
8944 if highlighted_chunk.is_tab {
8945 if non_whitespace_added || !is_soft_wrapped {
8946 invisibles.push(Invisible::Tab {
8947 line_start_offset: line.len(),
8948 line_end_offset: line.len() + line_chunk.len(),
8949 });
8950 }
8951 } else {
8952 invisibles.extend(line_chunk.char_indices().filter_map(
8953 |(index, c)| {
8954 let is_whitespace = c.is_whitespace();
8955 non_whitespace_added |= !is_whitespace;
8956 if is_whitespace
8957 && (non_whitespace_added || !is_soft_wrapped)
8958 {
8959 Some(Invisible::Whitespace {
8960 line_offset: line.len() + index,
8961 })
8962 } else {
8963 None
8964 }
8965 },
8966 ))
8967 }
8968 }
8969
8970 line.push_str(line_chunk);
8971 }
8972 }
8973 }
8974 }
8975
8976 layouts
8977 }
8978
8979 /// Takes text runs and non-overlapping left-to-right background ranges with color.
8980 /// Returns new text runs with adjusted contrast as per background ranges.
8981 fn split_runs_by_bg_segments(
8982 text_runs: &[TextRun],
8983 bg_segments: &[(Range<DisplayPoint>, Hsla)],
8984 min_contrast: f32,
8985 start_col_offset: usize,
8986 ) -> Vec<TextRun> {
8987 let mut output_runs: Vec<TextRun> = Vec::with_capacity(text_runs.len());
8988 let mut line_col = start_col_offset;
8989 let mut segment_ix = 0usize;
8990
8991 for text_run in text_runs.iter() {
8992 let run_start_col = line_col;
8993 let run_end_col = run_start_col + text_run.len;
8994 while segment_ix < bg_segments.len()
8995 && (bg_segments[segment_ix].0.end.column() as usize) <= run_start_col
8996 {
8997 segment_ix += 1;
8998 }
8999 let mut cursor_col = run_start_col;
9000 let mut local_segment_ix = segment_ix;
9001 while local_segment_ix < bg_segments.len() {
9002 let (range, segment_color) = &bg_segments[local_segment_ix];
9003 let segment_start_col = range.start.column() as usize;
9004 let segment_end_col = range.end.column() as usize;
9005 if segment_start_col >= run_end_col {
9006 break;
9007 }
9008 if segment_start_col > cursor_col {
9009 let span_len = segment_start_col - cursor_col;
9010 output_runs.push(TextRun {
9011 len: span_len,
9012 font: text_run.font.clone(),
9013 color: text_run.color,
9014 background_color: text_run.background_color,
9015 underline: text_run.underline,
9016 strikethrough: text_run.strikethrough,
9017 });
9018 cursor_col = segment_start_col;
9019 }
9020 let segment_slice_end_col = segment_end_col.min(run_end_col);
9021 if segment_slice_end_col > cursor_col {
9022 let new_text_color =
9023 ensure_minimum_contrast(text_run.color, *segment_color, min_contrast);
9024 output_runs.push(TextRun {
9025 len: segment_slice_end_col - cursor_col,
9026 font: text_run.font.clone(),
9027 color: new_text_color,
9028 background_color: text_run.background_color,
9029 underline: text_run.underline,
9030 strikethrough: text_run.strikethrough,
9031 });
9032 cursor_col = segment_slice_end_col;
9033 }
9034 if segment_end_col >= run_end_col {
9035 break;
9036 }
9037 local_segment_ix += 1;
9038 }
9039 if cursor_col < run_end_col {
9040 output_runs.push(TextRun {
9041 len: run_end_col - cursor_col,
9042 font: text_run.font.clone(),
9043 color: text_run.color,
9044 background_color: text_run.background_color,
9045 underline: text_run.underline,
9046 strikethrough: text_run.strikethrough,
9047 });
9048 }
9049 line_col = run_end_col;
9050 segment_ix = local_segment_ix;
9051 }
9052 output_runs
9053 }
9054
9055 fn prepaint(
9056 &mut self,
9057 line_height: Pixels,
9058 scroll_position: gpui::Point<ScrollOffset>,
9059 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
9060 row: DisplayRow,
9061 content_origin: gpui::Point<Pixels>,
9062 line_elements: &mut SmallVec<[AnyElement; 1]>,
9063 window: &mut Window,
9064 cx: &mut App,
9065 ) {
9066 let line_y = f32::from(line_height) * Pixels::from(row.as_f64() - scroll_position.y);
9067 self.prepaint_with_custom_offset(
9068 line_height,
9069 scroll_pixel_position,
9070 content_origin,
9071 line_y,
9072 line_elements,
9073 window,
9074 cx,
9075 );
9076 }
9077
9078 fn prepaint_with_custom_offset(
9079 &mut self,
9080 line_height: Pixels,
9081 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
9082 content_origin: gpui::Point<Pixels>,
9083 line_y: Pixels,
9084 line_elements: &mut SmallVec<[AnyElement; 1]>,
9085 window: &mut Window,
9086 cx: &mut App,
9087 ) {
9088 let mut fragment_origin =
9089 content_origin + gpui::point(Pixels::from(-scroll_pixel_position.x), line_y);
9090 for fragment in &mut self.fragments {
9091 match fragment {
9092 LineFragment::Text(line) => {
9093 fragment_origin.x += line.width;
9094 }
9095 LineFragment::Element { element, size, .. } => {
9096 let mut element = element
9097 .take()
9098 .expect("you can't prepaint LineWithInvisibles twice");
9099
9100 // Center the element vertically within the line.
9101 let mut element_origin = fragment_origin;
9102 element_origin.y += (line_height - size.height) / 2.;
9103 element.prepaint_at(element_origin, window, cx);
9104 line_elements.push(element);
9105
9106 fragment_origin.x += size.width;
9107 }
9108 }
9109 }
9110 }
9111
9112 fn draw(
9113 &self,
9114 layout: &EditorLayout,
9115 row: DisplayRow,
9116 content_origin: gpui::Point<Pixels>,
9117 whitespace_setting: ShowWhitespaceSetting,
9118 selection_ranges: &[Range<DisplayPoint>],
9119 window: &mut Window,
9120 cx: &mut App,
9121 ) {
9122 self.draw_with_custom_offset(
9123 layout,
9124 row,
9125 content_origin,
9126 layout.position_map.line_height
9127 * (row.as_f64() - layout.position_map.scroll_position.y) as f32,
9128 whitespace_setting,
9129 selection_ranges,
9130 window,
9131 cx,
9132 );
9133 }
9134
9135 fn draw_with_custom_offset(
9136 &self,
9137 layout: &EditorLayout,
9138 row: DisplayRow,
9139 content_origin: gpui::Point<Pixels>,
9140 line_y: Pixels,
9141 whitespace_setting: ShowWhitespaceSetting,
9142 selection_ranges: &[Range<DisplayPoint>],
9143 window: &mut Window,
9144 cx: &mut App,
9145 ) {
9146 let line_height = layout.position_map.line_height;
9147 let mut fragment_origin = content_origin
9148 + gpui::point(
9149 Pixels::from(-layout.position_map.scroll_pixel_position.x),
9150 line_y,
9151 );
9152
9153 for fragment in &self.fragments {
9154 match fragment {
9155 LineFragment::Text(line) => {
9156 line.paint(
9157 fragment_origin,
9158 line_height,
9159 layout.text_align,
9160 Some(layout.content_width),
9161 window,
9162 cx,
9163 )
9164 .log_err();
9165 fragment_origin.x += line.width;
9166 }
9167 LineFragment::Element { size, .. } => {
9168 fragment_origin.x += size.width;
9169 }
9170 }
9171 }
9172
9173 self.draw_invisibles(
9174 selection_ranges,
9175 layout,
9176 content_origin,
9177 line_y,
9178 row,
9179 line_height,
9180 whitespace_setting,
9181 window,
9182 cx,
9183 );
9184 }
9185
9186 fn draw_background(
9187 &self,
9188 layout: &EditorLayout,
9189 row: DisplayRow,
9190 content_origin: gpui::Point<Pixels>,
9191 window: &mut Window,
9192 cx: &mut App,
9193 ) {
9194 let line_height = layout.position_map.line_height;
9195 let line_y = line_height * (row.as_f64() - layout.position_map.scroll_position.y) as f32;
9196
9197 let mut fragment_origin = content_origin
9198 + gpui::point(
9199 Pixels::from(-layout.position_map.scroll_pixel_position.x),
9200 line_y,
9201 );
9202
9203 for fragment in &self.fragments {
9204 match fragment {
9205 LineFragment::Text(line) => {
9206 line.paint_background(
9207 fragment_origin,
9208 line_height,
9209 layout.text_align,
9210 Some(layout.content_width),
9211 window,
9212 cx,
9213 )
9214 .log_err();
9215 fragment_origin.x += line.width;
9216 }
9217 LineFragment::Element { size, .. } => {
9218 fragment_origin.x += size.width;
9219 }
9220 }
9221 }
9222 }
9223
9224 fn draw_invisibles(
9225 &self,
9226 selection_ranges: &[Range<DisplayPoint>],
9227 layout: &EditorLayout,
9228 content_origin: gpui::Point<Pixels>,
9229 line_y: Pixels,
9230 row: DisplayRow,
9231 line_height: Pixels,
9232 whitespace_setting: ShowWhitespaceSetting,
9233 window: &mut Window,
9234 cx: &mut App,
9235 ) {
9236 let extract_whitespace_info = |invisible: &Invisible| {
9237 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
9238 Invisible::Tab {
9239 line_start_offset,
9240 line_end_offset,
9241 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
9242 Invisible::Whitespace { line_offset } => {
9243 (*line_offset, line_offset + 1, &layout.space_invisible)
9244 }
9245 };
9246
9247 let x_offset: ScrollPixelOffset = self.x_for_index(token_offset).into();
9248 let invisible_offset: ScrollPixelOffset =
9249 ((layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0)
9250 .into();
9251 let origin = content_origin
9252 + gpui::point(
9253 Pixels::from(
9254 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
9255 ),
9256 line_y,
9257 );
9258
9259 (
9260 [token_offset, token_end_offset],
9261 Box::new(move |window: &mut Window, cx: &mut App| {
9262 invisible_symbol
9263 .paint(origin, line_height, TextAlign::Left, None, window, cx)
9264 .log_err();
9265 }),
9266 )
9267 };
9268
9269 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
9270 match whitespace_setting {
9271 ShowWhitespaceSetting::None => (),
9272 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
9273 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
9274 let invisible_point = DisplayPoint::new(row, start as u32);
9275 if !selection_ranges
9276 .iter()
9277 .any(|region| region.start <= invisible_point && invisible_point < region.end)
9278 {
9279 return;
9280 }
9281
9282 paint(window, cx);
9283 }),
9284
9285 ShowWhitespaceSetting::Trailing => {
9286 let mut previous_start = self.len;
9287 for ([start, end], paint) in invisible_iter.rev() {
9288 if previous_start != end {
9289 break;
9290 }
9291 previous_start = start;
9292 paint(window, cx);
9293 }
9294 }
9295
9296 // For a whitespace to be on a boundary, any of the following conditions need to be met:
9297 // - It is a tab
9298 // - It is adjacent to an edge (start or end)
9299 // - It is adjacent to a whitespace (left or right)
9300 ShowWhitespaceSetting::Boundary => {
9301 // 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
9302 // the above cases.
9303 // Note: We zip in the original `invisibles` to check for tab equality
9304 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
9305 for (([start, end], paint), invisible) in
9306 invisible_iter.zip_eq(self.invisibles.iter())
9307 {
9308 let should_render = match (&last_seen, invisible) {
9309 (_, Invisible::Tab { .. }) => true,
9310 (Some((_, last_end, _)), _) => *last_end == start,
9311 _ => false,
9312 };
9313
9314 if should_render || start == 0 || end == self.len {
9315 paint(window, cx);
9316
9317 // Since we are scanning from the left, we will skip over the first available whitespace that is part
9318 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
9319 if let Some((should_render_last, last_end, paint_last)) = last_seen {
9320 // Note that we need to make sure that the last one is actually adjacent
9321 if !should_render_last && last_end == start {
9322 paint_last(window, cx);
9323 }
9324 }
9325 }
9326
9327 // Manually render anything within a selection
9328 let invisible_point = DisplayPoint::new(row, start as u32);
9329 if selection_ranges.iter().any(|region| {
9330 region.start <= invisible_point && invisible_point < region.end
9331 }) {
9332 paint(window, cx);
9333 }
9334
9335 last_seen = Some((should_render, end, paint));
9336 }
9337 }
9338 }
9339 }
9340
9341 pub fn x_for_index(&self, index: usize) -> Pixels {
9342 let mut fragment_start_x = Pixels::ZERO;
9343 let mut fragment_start_index = 0;
9344
9345 for fragment in &self.fragments {
9346 match fragment {
9347 LineFragment::Text(shaped_line) => {
9348 let fragment_end_index = fragment_start_index + shaped_line.len;
9349 if index < fragment_end_index {
9350 return fragment_start_x
9351 + shaped_line.x_for_index(index - fragment_start_index);
9352 }
9353 fragment_start_x += shaped_line.width;
9354 fragment_start_index = fragment_end_index;
9355 }
9356 LineFragment::Element { len, size, .. } => {
9357 let fragment_end_index = fragment_start_index + len;
9358 if index < fragment_end_index {
9359 return fragment_start_x;
9360 }
9361 fragment_start_x += size.width;
9362 fragment_start_index = fragment_end_index;
9363 }
9364 }
9365 }
9366
9367 fragment_start_x
9368 }
9369
9370 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
9371 let mut fragment_start_x = Pixels::ZERO;
9372 let mut fragment_start_index = 0;
9373
9374 for fragment in &self.fragments {
9375 match fragment {
9376 LineFragment::Text(shaped_line) => {
9377 let fragment_end_x = fragment_start_x + shaped_line.width;
9378 if x < fragment_end_x {
9379 return Some(
9380 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
9381 );
9382 }
9383 fragment_start_x = fragment_end_x;
9384 fragment_start_index += shaped_line.len;
9385 }
9386 LineFragment::Element { len, size, .. } => {
9387 let fragment_end_x = fragment_start_x + size.width;
9388 if x < fragment_end_x {
9389 return Some(fragment_start_index);
9390 }
9391 fragment_start_index += len;
9392 fragment_start_x = fragment_end_x;
9393 }
9394 }
9395 }
9396
9397 None
9398 }
9399
9400 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
9401 let mut fragment_start_index = 0;
9402
9403 for fragment in &self.fragments {
9404 match fragment {
9405 LineFragment::Text(shaped_line) => {
9406 let fragment_end_index = fragment_start_index + shaped_line.len;
9407 if index < fragment_end_index {
9408 return shaped_line.font_id_for_index(index - fragment_start_index);
9409 }
9410 fragment_start_index = fragment_end_index;
9411 }
9412 LineFragment::Element { len, .. } => {
9413 let fragment_end_index = fragment_start_index + len;
9414 if index < fragment_end_index {
9415 return None;
9416 }
9417 fragment_start_index = fragment_end_index;
9418 }
9419 }
9420 }
9421
9422 None
9423 }
9424
9425 pub fn alignment_offset(&self, text_align: TextAlign, content_width: Pixels) -> Pixels {
9426 let line_width = self.width;
9427 match text_align {
9428 TextAlign::Left => px(0.0),
9429 TextAlign::Center => (content_width - line_width) / 2.0,
9430 TextAlign::Right => content_width - line_width,
9431 }
9432 }
9433}
9434
9435#[derive(Debug, Clone, Copy, PartialEq, Eq)]
9436enum Invisible {
9437 /// A tab character
9438 ///
9439 /// A tab character is internally represented by spaces (configured by the user's tab width)
9440 /// aligned to the nearest column, so it's necessary to store the start and end offset for
9441 /// adjacency checks.
9442 Tab {
9443 line_start_offset: usize,
9444 line_end_offset: usize,
9445 },
9446 Whitespace {
9447 line_offset: usize,
9448 },
9449}
9450
9451impl EditorElement {
9452 /// Returns the rem size to use when rendering the [`EditorElement`].
9453 ///
9454 /// This allows UI elements to scale based on the `buffer_font_size`.
9455 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
9456 match self.editor.read(cx).mode {
9457 EditorMode::Full {
9458 scale_ui_elements_with_buffer_font_size: true,
9459 ..
9460 }
9461 | EditorMode::Minimap { .. } => {
9462 let buffer_font_size = self.style.text.font_size;
9463 match buffer_font_size {
9464 AbsoluteLength::Pixels(pixels) => {
9465 let rem_size_scale = {
9466 // Our default UI font size is 14px on a 16px base scale.
9467 // This means the default UI font size is 0.875rems.
9468 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
9469
9470 // We then determine the delta between a single rem and the default font
9471 // size scale.
9472 let default_font_size_delta = 1. - default_font_size_scale;
9473
9474 // Finally, we add this delta to 1rem to get the scale factor that
9475 // should be used to scale up the UI.
9476 1. + default_font_size_delta
9477 };
9478
9479 Some(pixels * rem_size_scale)
9480 }
9481 AbsoluteLength::Rems(rems) => {
9482 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
9483 }
9484 }
9485 }
9486 // We currently use single-line and auto-height editors in UI contexts,
9487 // so we don't want to scale everything with the buffer font size, as it
9488 // ends up looking off.
9489 _ => None,
9490 }
9491 }
9492
9493 fn editor_with_selections(&self, cx: &App) -> Option<Entity<Editor>> {
9494 if let EditorMode::Minimap { parent } = self.editor.read(cx).mode() {
9495 parent.upgrade()
9496 } else {
9497 Some(self.editor.clone())
9498 }
9499 }
9500}
9501
9502#[derive(Default)]
9503pub struct EditorRequestLayoutState {
9504 // We use prepaint depth to limit the number of times prepaint is
9505 // called recursively. We need this so that we can update stale
9506 // data for e.g. block heights in block map.
9507 prepaint_depth: Rc<Cell<usize>>,
9508}
9509
9510impl EditorRequestLayoutState {
9511 // In ideal conditions we only need one more subsequent prepaint call for resize to take effect.
9512 // i.e. MAX_PREPAINT_DEPTH = 2, but since moving blocks inline (place_near), more lines from
9513 // below get exposed, and we end up querying blocks for those lines too in subsequent renders.
9514 // Setting MAX_PREPAINT_DEPTH = 3, passes all tests. Just to be on the safe side we set it to 5, so
9515 // that subsequent shrinking does not lead to incorrect block placing.
9516 const MAX_PREPAINT_DEPTH: usize = 5;
9517
9518 fn increment_prepaint_depth(&self) -> EditorPrepaintGuard {
9519 let depth = self.prepaint_depth.get();
9520 self.prepaint_depth.set(depth + 1);
9521 EditorPrepaintGuard {
9522 prepaint_depth: self.prepaint_depth.clone(),
9523 }
9524 }
9525
9526 fn can_prepaint(&self) -> bool {
9527 self.prepaint_depth.get() < Self::MAX_PREPAINT_DEPTH
9528 }
9529}
9530
9531struct EditorPrepaintGuard {
9532 prepaint_depth: Rc<Cell<usize>>,
9533}
9534
9535impl Drop for EditorPrepaintGuard {
9536 fn drop(&mut self) {
9537 let depth = self.prepaint_depth.get();
9538 self.prepaint_depth.set(depth.saturating_sub(1));
9539 }
9540}
9541
9542impl Element for EditorElement {
9543 type RequestLayoutState = EditorRequestLayoutState;
9544 type PrepaintState = EditorLayout;
9545
9546 fn id(&self) -> Option<ElementId> {
9547 None
9548 }
9549
9550 fn source_location(&self) -> Option<&'static core::panic::Location<'static>> {
9551 None
9552 }
9553
9554 fn request_layout(
9555 &mut self,
9556 _: Option<&GlobalElementId>,
9557 _inspector_id: Option<&gpui::InspectorElementId>,
9558 window: &mut Window,
9559 cx: &mut App,
9560 ) -> (gpui::LayoutId, Self::RequestLayoutState) {
9561 let rem_size = self.rem_size(cx);
9562 window.with_rem_size(rem_size, |window| {
9563 self.editor.update(cx, |editor, cx| {
9564 editor.set_style(self.style.clone(), window, cx);
9565
9566 let layout_id = match editor.mode {
9567 EditorMode::SingleLine => {
9568 let rem_size = window.rem_size();
9569 let height = self.style.text.line_height_in_pixels(rem_size);
9570 let mut style = Style::default();
9571 style.size.height = height.into();
9572 style.size.width = relative(1.).into();
9573 window.request_layout(style, None, cx)
9574 }
9575 EditorMode::AutoHeight {
9576 min_lines,
9577 max_lines,
9578 } => {
9579 let editor_handle = cx.entity();
9580 window.request_measured_layout(
9581 Style::default(),
9582 move |known_dimensions, available_space, window, cx| {
9583 editor_handle
9584 .update(cx, |editor, cx| {
9585 compute_auto_height_layout(
9586 editor,
9587 min_lines,
9588 max_lines,
9589 known_dimensions,
9590 available_space.width,
9591 window,
9592 cx,
9593 )
9594 })
9595 .unwrap_or_default()
9596 },
9597 )
9598 }
9599 EditorMode::Minimap { .. } => {
9600 let mut style = Style::default();
9601 style.size.width = relative(1.).into();
9602 style.size.height = relative(1.).into();
9603 window.request_layout(style, None, cx)
9604 }
9605 EditorMode::Full {
9606 sizing_behavior, ..
9607 } => {
9608 let mut style = Style::default();
9609 style.size.width = relative(1.).into();
9610 if sizing_behavior == SizingBehavior::SizeByContent {
9611 let snapshot = editor.snapshot(window, cx);
9612 let line_height =
9613 self.style.text.line_height_in_pixels(window.rem_size());
9614 let scroll_height =
9615 (snapshot.max_point().row().next_row().0 as f32) * line_height;
9616 style.size.height = scroll_height.into();
9617 } else {
9618 style.size.height = relative(1.).into();
9619 }
9620 window.request_layout(style, None, cx)
9621 }
9622 };
9623
9624 (layout_id, EditorRequestLayoutState::default())
9625 })
9626 })
9627 }
9628
9629 fn prepaint(
9630 &mut self,
9631 _: Option<&GlobalElementId>,
9632 _inspector_id: Option<&gpui::InspectorElementId>,
9633 bounds: Bounds<Pixels>,
9634 request_layout: &mut Self::RequestLayoutState,
9635 window: &mut Window,
9636 cx: &mut App,
9637 ) -> Self::PrepaintState {
9638 let _prepaint_depth_guard = request_layout.increment_prepaint_depth();
9639 let text_style = TextStyleRefinement {
9640 font_size: Some(self.style.text.font_size),
9641 line_height: Some(self.style.text.line_height),
9642 ..Default::default()
9643 };
9644
9645 let is_minimap = self.editor.read(cx).mode.is_minimap();
9646 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
9647
9648 if !is_minimap {
9649 let focus_handle = self.editor.focus_handle(cx);
9650 window.set_view_id(self.editor.entity_id());
9651 window.set_focus_handle(&focus_handle, cx);
9652 }
9653
9654 let rem_size = self.rem_size(cx);
9655 window.with_rem_size(rem_size, |window| {
9656 window.with_text_style(Some(text_style), |window| {
9657 window.with_content_mask(Some(ContentMask { bounds }), |window| {
9658 let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| {
9659 (editor.snapshot(window, cx), editor.read_only(cx))
9660 });
9661 let style = &self.style;
9662
9663 let rem_size = window.rem_size();
9664 let font_id = window.text_system().resolve_font(&style.text.font());
9665 let font_size = style.text.font_size.to_pixels(rem_size);
9666 let line_height = style.text.line_height_in_pixels(rem_size);
9667 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
9668 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
9669 let em_layout_width = window.text_system().em_layout_width(font_id, font_size);
9670 let glyph_grid_cell = size(em_advance, line_height);
9671
9672 let gutter_dimensions =
9673 snapshot.gutter_dimensions(font_id, font_size, style, window, cx);
9674 let text_width = bounds.size.width - gutter_dimensions.width;
9675
9676 let settings = EditorSettings::get_global(cx);
9677 let scrollbars_shown = settings.scrollbar.show != ShowScrollbar::Never;
9678 let vertical_scrollbar_width = (scrollbars_shown
9679 && settings.scrollbar.axes.vertical
9680 && self.editor.read(cx).show_scrollbars.vertical)
9681 .then_some(style.scrollbar_width)
9682 .unwrap_or_default();
9683 let minimap_width = self
9684 .get_minimap_width(
9685 &settings.minimap,
9686 scrollbars_shown,
9687 text_width,
9688 em_width,
9689 font_size,
9690 rem_size,
9691 cx,
9692 )
9693 .unwrap_or_default();
9694
9695 let right_margin = minimap_width + vertical_scrollbar_width;
9696
9697 let extended_right = 2 * em_width + right_margin;
9698 let editor_width = text_width - gutter_dimensions.margin - extended_right;
9699 let editor_margins = EditorMargins {
9700 gutter: gutter_dimensions,
9701 right: right_margin,
9702 extended_right,
9703 };
9704
9705 snapshot = self.editor.update(cx, |editor, cx| {
9706 editor.last_bounds = Some(bounds);
9707 editor.gutter_dimensions = gutter_dimensions;
9708 editor.set_visible_line_count(
9709 (bounds.size.height / line_height) as f64,
9710 window,
9711 cx,
9712 );
9713 editor.set_visible_column_count(f64::from(editor_width / em_advance));
9714
9715 if matches!(
9716 editor.mode,
9717 EditorMode::AutoHeight { .. } | EditorMode::Minimap { .. }
9718 ) {
9719 snapshot
9720 } else {
9721 let wrap_width = calculate_wrap_width(
9722 editor.soft_wrap_mode(cx),
9723 editor_width,
9724 em_layout_width,
9725 );
9726
9727 if editor.set_wrap_width(wrap_width, cx) {
9728 editor.snapshot(window, cx)
9729 } else {
9730 snapshot
9731 }
9732 }
9733 });
9734
9735 let hitbox = window.insert_hitbox(bounds, HitboxBehavior::Normal);
9736 let gutter_hitbox = window.insert_hitbox(
9737 gutter_bounds(bounds, gutter_dimensions),
9738 HitboxBehavior::Normal,
9739 );
9740 let text_hitbox = window.insert_hitbox(
9741 Bounds {
9742 origin: gutter_hitbox.top_right(),
9743 size: size(text_width, bounds.size.height),
9744 },
9745 HitboxBehavior::Normal,
9746 );
9747
9748 // Offset the content_bounds from the text_bounds by the gutter margin (which
9749 // is roughly half a character wide) to make hit testing work more like how we want.
9750 let content_offset = point(editor_margins.gutter.margin, Pixels::ZERO);
9751 let content_origin = text_hitbox.origin + content_offset;
9752
9753 let height_in_lines = f64::from(bounds.size.height / line_height);
9754 let max_row = snapshot.max_point().row().as_f64();
9755
9756 // Calculate how much of the editor is clipped by parent containers (e.g., List).
9757 // This allows us to only render lines that are actually visible, which is
9758 // critical for performance when large AutoHeight editors are inside Lists.
9759 let visible_bounds = window.content_mask().bounds;
9760 let clipped_top = (visible_bounds.origin.y - bounds.origin.y).max(px(0.));
9761 let clipped_top_in_lines = f64::from(clipped_top / line_height);
9762 let visible_height_in_lines =
9763 f64::from(visible_bounds.size.height / line_height);
9764
9765 // The max scroll position for the top of the window
9766 let max_scroll_top = if matches!(
9767 snapshot.mode,
9768 EditorMode::SingleLine
9769 | EditorMode::AutoHeight { .. }
9770 | EditorMode::Full {
9771 sizing_behavior: SizingBehavior::ExcludeOverscrollMargin
9772 | SizingBehavior::SizeByContent,
9773 ..
9774 }
9775 ) {
9776 (max_row - height_in_lines + 1.).max(0.)
9777 } else {
9778 let settings = EditorSettings::get_global(cx);
9779 match settings.scroll_beyond_last_line {
9780 ScrollBeyondLastLine::OnePage => max_row,
9781 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
9782 ScrollBeyondLastLine::VerticalScrollMargin => {
9783 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
9784 .max(0.)
9785 }
9786 }
9787 };
9788
9789 let (
9790 autoscroll_request,
9791 autoscroll_containing_element,
9792 needs_horizontal_autoscroll,
9793 ) = self.editor.update(cx, |editor, cx| {
9794 let autoscroll_request = editor.scroll_manager.take_autoscroll_request();
9795
9796 let autoscroll_containing_element =
9797 autoscroll_request.is_some() || editor.has_pending_selection();
9798
9799 let (needs_horizontal_autoscroll, was_scrolled) = editor
9800 .autoscroll_vertically(
9801 bounds,
9802 line_height,
9803 max_scroll_top,
9804 autoscroll_request,
9805 window,
9806 cx,
9807 );
9808 if was_scrolled.0 {
9809 snapshot = editor.snapshot(window, cx);
9810 }
9811 (
9812 autoscroll_request,
9813 autoscroll_containing_element,
9814 needs_horizontal_autoscroll,
9815 )
9816 });
9817
9818 let mut scroll_position = snapshot.scroll_position();
9819 // The scroll position is a fractional point, the whole number of which represents
9820 // the top of the window in terms of display rows.
9821 // We add clipped_top_in_lines to skip rows that are clipped by parent containers,
9822 // but we don't modify scroll_position itself since the parent handles positioning.
9823 let max_row = snapshot.max_point().row();
9824 let start_row = cmp::min(
9825 DisplayRow((scroll_position.y + clipped_top_in_lines).floor() as u32),
9826 max_row,
9827 );
9828 let end_row = cmp::min(
9829 (scroll_position.y + clipped_top_in_lines + visible_height_in_lines).ceil()
9830 as u32,
9831 max_row.next_row().0,
9832 );
9833 let end_row = DisplayRow(end_row);
9834
9835 let row_infos = snapshot // note we only get the visual range
9836 .row_infos(start_row)
9837 .take((start_row..end_row).len())
9838 .collect::<Vec<RowInfo>>();
9839 let is_row_soft_wrapped = |row: usize| {
9840 row_infos
9841 .get(row)
9842 .is_none_or(|info| info.buffer_row.is_none())
9843 };
9844
9845 let start_anchor = if start_row == Default::default() {
9846 Anchor::min()
9847 } else {
9848 snapshot.buffer_snapshot().anchor_before(
9849 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
9850 )
9851 };
9852 let end_anchor = if end_row > max_row {
9853 Anchor::max()
9854 } else {
9855 snapshot.buffer_snapshot().anchor_before(
9856 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
9857 )
9858 };
9859
9860 let mut highlighted_rows = self
9861 .editor
9862 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
9863
9864 let is_light = cx.theme().appearance().is_light();
9865
9866 let mut highlighted_ranges = self
9867 .editor_with_selections(cx)
9868 .map(|editor| {
9869 if editor == self.editor {
9870 editor.read(cx).background_highlights_in_range(
9871 start_anchor..end_anchor,
9872 &snapshot.display_snapshot,
9873 cx.theme(),
9874 )
9875 } else {
9876 editor.update(cx, |editor, cx| {
9877 let snapshot = editor.snapshot(window, cx);
9878 let start_anchor = if start_row == Default::default() {
9879 Anchor::min()
9880 } else {
9881 snapshot.buffer_snapshot().anchor_before(
9882 DisplayPoint::new(start_row, 0)
9883 .to_offset(&snapshot, Bias::Left),
9884 )
9885 };
9886 let end_anchor = if end_row > max_row {
9887 Anchor::max()
9888 } else {
9889 snapshot.buffer_snapshot().anchor_before(
9890 DisplayPoint::new(end_row, 0)
9891 .to_offset(&snapshot, Bias::Right),
9892 )
9893 };
9894
9895 editor.background_highlights_in_range(
9896 start_anchor..end_anchor,
9897 &snapshot.display_snapshot,
9898 cx.theme(),
9899 )
9900 })
9901 }
9902 })
9903 .unwrap_or_default();
9904
9905 for (ix, row_info) in row_infos.iter().enumerate() {
9906 let Some(diff_status) = row_info.diff_status else {
9907 continue;
9908 };
9909
9910 let background_color = match diff_status.kind {
9911 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
9912 DiffHunkStatusKind::Deleted => {
9913 cx.theme().colors().version_control_deleted
9914 }
9915 DiffHunkStatusKind::Modified => {
9916 debug_panic!("modified diff status for row info");
9917 continue;
9918 }
9919 };
9920
9921 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
9922
9923 let hollow_highlight = LineHighlight {
9924 background: (background_color.opacity(if is_light {
9925 0.08
9926 } else {
9927 0.06
9928 }))
9929 .into(),
9930 border: Some(if is_light {
9931 background_color.opacity(0.48)
9932 } else {
9933 background_color.opacity(0.36)
9934 }),
9935 include_gutter: true,
9936 type_id: None,
9937 };
9938
9939 let filled_highlight = LineHighlight {
9940 background: solid_background(background_color.opacity(hunk_opacity)),
9941 border: None,
9942 include_gutter: true,
9943 type_id: None,
9944 };
9945
9946 let background = if Self::diff_hunk_hollow(diff_status, cx) {
9947 hollow_highlight
9948 } else {
9949 filled_highlight
9950 };
9951
9952 let base_display_point =
9953 DisplayPoint::new(start_row + DisplayRow(ix as u32), 0);
9954
9955 highlighted_rows
9956 .entry(base_display_point.row())
9957 .or_insert(background);
9958 }
9959
9960 // Add diff review drag selection highlight to text area
9961 if let Some(drag_state) = &self.editor.read(cx).diff_review_drag_state {
9962 let range = drag_state.row_range(&snapshot.display_snapshot);
9963 let start_row = range.start().0;
9964 let end_row = range.end().0;
9965 let drag_highlight_color =
9966 cx.theme().colors().editor_active_line_background;
9967 let drag_highlight = LineHighlight {
9968 background: solid_background(drag_highlight_color),
9969 border: Some(cx.theme().colors().border_focused),
9970 include_gutter: true,
9971 type_id: None,
9972 };
9973 for row_num in start_row..=end_row {
9974 highlighted_rows
9975 .entry(DisplayRow(row_num))
9976 .or_insert(drag_highlight);
9977 }
9978 }
9979
9980 let highlighted_gutter_ranges =
9981 self.editor.read(cx).gutter_highlights_in_range(
9982 start_anchor..end_anchor,
9983 &snapshot.display_snapshot,
9984 cx,
9985 );
9986
9987 let document_colors = self
9988 .editor
9989 .read(cx)
9990 .colors
9991 .as_ref()
9992 .map(|colors| colors.editor_display_highlights(&snapshot));
9993 let redacted_ranges = self.editor.read(cx).redacted_ranges(
9994 start_anchor..end_anchor,
9995 &snapshot.display_snapshot,
9996 cx,
9997 );
9998
9999 let (local_selections, selected_buffer_ids, latest_selection_anchors): (
10000 Vec<Selection<Point>>,
10001 Vec<BufferId>,
10002 HashMap<BufferId, Anchor>,
10003 ) = self
10004 .editor_with_selections(cx)
10005 .map(|editor| {
10006 editor.update(cx, |editor, cx| {
10007 let all_selections =
10008 editor.selections.all::<Point>(&snapshot.display_snapshot);
10009 let all_anchor_selections =
10010 editor.selections.all_anchors(&snapshot.display_snapshot);
10011 let selected_buffer_ids =
10012 if editor.buffer_kind(cx) == ItemBufferKind::Singleton {
10013 Vec::new()
10014 } else {
10015 let mut selected_buffer_ids =
10016 Vec::with_capacity(all_selections.len());
10017
10018 for selection in all_selections {
10019 for buffer_id in snapshot
10020 .buffer_snapshot()
10021 .buffer_ids_for_range(selection.range())
10022 {
10023 if selected_buffer_ids.last() != Some(&buffer_id) {
10024 selected_buffer_ids.push(buffer_id);
10025 }
10026 }
10027 }
10028
10029 selected_buffer_ids
10030 };
10031
10032 let mut selections = editor.selections.disjoint_in_range(
10033 start_anchor..end_anchor,
10034 &snapshot.display_snapshot,
10035 );
10036 selections
10037 .extend(editor.selections.pending(&snapshot.display_snapshot));
10038
10039 let mut anchors_by_buffer: HashMap<BufferId, (usize, Anchor)> =
10040 HashMap::default();
10041 for selection in all_anchor_selections.iter() {
10042 let head = selection.head();
10043 if let Some(buffer_id) = head.text_anchor.buffer_id {
10044 anchors_by_buffer
10045 .entry(buffer_id)
10046 .and_modify(|(latest_id, latest_anchor)| {
10047 if selection.id > *latest_id {
10048 *latest_id = selection.id;
10049 *latest_anchor = head;
10050 }
10051 })
10052 .or_insert((selection.id, head));
10053 }
10054 }
10055 let latest_selection_anchors = anchors_by_buffer
10056 .into_iter()
10057 .map(|(buffer_id, (_, anchor))| (buffer_id, anchor))
10058 .collect();
10059
10060 (selections, selected_buffer_ids, latest_selection_anchors)
10061 })
10062 })
10063 .unwrap_or_else(|| (Vec::new(), Vec::new(), HashMap::default()));
10064
10065 let (selections, mut active_rows, newest_selection_head) = self
10066 .layout_selections(
10067 start_anchor,
10068 end_anchor,
10069 &local_selections,
10070 &snapshot,
10071 start_row,
10072 end_row,
10073 window,
10074 cx,
10075 );
10076
10077 // relative rows are based on newest selection, even outside the visible area
10078 let current_selection_head = self.editor.update(cx, |editor, cx| {
10079 (editor.selections.count() != 0).then(|| {
10080 let newest = editor
10081 .selections
10082 .newest::<Point>(&editor.display_snapshot(cx));
10083
10084 SelectionLayout::new(
10085 newest,
10086 editor.selections.line_mode(),
10087 editor.cursor_offset_on_selection,
10088 editor.cursor_shape,
10089 &snapshot,
10090 true,
10091 true,
10092 None,
10093 )
10094 .head
10095 .row()
10096 })
10097 });
10098
10099 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
10100 editor.active_breakpoints(start_row..end_row, window, cx)
10101 });
10102 for (display_row, (_, bp, state)) in &breakpoint_rows {
10103 if bp.is_enabled() && state.is_none_or(|s| s.verified) {
10104 active_rows.entry(*display_row).or_default().breakpoint = true;
10105 }
10106 }
10107
10108 let line_numbers = self.layout_line_numbers(
10109 Some(&gutter_hitbox),
10110 gutter_dimensions,
10111 line_height,
10112 scroll_position,
10113 start_row..end_row,
10114 &row_infos,
10115 &active_rows,
10116 current_selection_head,
10117 &snapshot,
10118 window,
10119 cx,
10120 );
10121
10122 // We add the gutter breakpoint indicator to breakpoint_rows after painting
10123 // line numbers so we don't paint a line number debug accent color if a user
10124 // has their mouse over that line when a breakpoint isn't there
10125 self.editor.update(cx, |editor, _| {
10126 if let Some(phantom_breakpoint) = &mut editor
10127 .gutter_breakpoint_indicator
10128 .0
10129 .filter(|phantom_breakpoint| phantom_breakpoint.is_active)
10130 {
10131 // Is there a non-phantom breakpoint on this line?
10132 phantom_breakpoint.collides_with_existing_breakpoint = true;
10133 breakpoint_rows
10134 .entry(phantom_breakpoint.display_row)
10135 .or_insert_with(|| {
10136 let position = snapshot.display_point_to_anchor(
10137 DisplayPoint::new(phantom_breakpoint.display_row, 0),
10138 Bias::Right,
10139 );
10140 let breakpoint = Breakpoint::new_standard();
10141 phantom_breakpoint.collides_with_existing_breakpoint = false;
10142 (position, breakpoint, None)
10143 });
10144 }
10145 });
10146
10147 let mut expand_toggles =
10148 window.with_element_namespace("expand_toggles", |window| {
10149 self.layout_expand_toggles(
10150 &gutter_hitbox,
10151 gutter_dimensions,
10152 em_width,
10153 line_height,
10154 scroll_position,
10155 &row_infos,
10156 window,
10157 cx,
10158 )
10159 });
10160
10161 let mut crease_toggles =
10162 window.with_element_namespace("crease_toggles", |window| {
10163 self.layout_crease_toggles(
10164 start_row..end_row,
10165 &row_infos,
10166 &active_rows,
10167 &snapshot,
10168 window,
10169 cx,
10170 )
10171 });
10172 let crease_trailers =
10173 window.with_element_namespace("crease_trailers", |window| {
10174 self.layout_crease_trailers(
10175 row_infos.iter().cloned(),
10176 &snapshot,
10177 window,
10178 cx,
10179 )
10180 });
10181
10182 let display_hunks = self.layout_gutter_diff_hunks(
10183 line_height,
10184 &gutter_hitbox,
10185 start_row..end_row,
10186 &snapshot,
10187 window,
10188 cx,
10189 );
10190
10191 Self::layout_word_diff_highlights(
10192 &display_hunks,
10193 &row_infos,
10194 start_row,
10195 &snapshot,
10196 &mut highlighted_ranges,
10197 cx,
10198 );
10199
10200 let merged_highlighted_ranges =
10201 if let Some((_, colors)) = document_colors.as_ref() {
10202 &highlighted_ranges
10203 .clone()
10204 .into_iter()
10205 .chain(colors.clone())
10206 .collect()
10207 } else {
10208 &highlighted_ranges
10209 };
10210 let bg_segments_per_row = Self::bg_segments_per_row(
10211 start_row..end_row,
10212 &selections,
10213 &merged_highlighted_ranges,
10214 self.style.background,
10215 );
10216
10217 let mut line_layouts = Self::layout_lines(
10218 start_row..end_row,
10219 &snapshot,
10220 &self.style,
10221 editor_width,
10222 is_row_soft_wrapped,
10223 &bg_segments_per_row,
10224 window,
10225 cx,
10226 );
10227 let new_renderer_widths = (!is_minimap).then(|| {
10228 line_layouts
10229 .iter()
10230 .flat_map(|layout| &layout.fragments)
10231 .filter_map(|fragment| {
10232 if let LineFragment::Element { id, size, .. } = fragment {
10233 Some((*id, size.width))
10234 } else {
10235 None
10236 }
10237 })
10238 });
10239 if new_renderer_widths.is_some_and(|new_renderer_widths| {
10240 self.editor.update(cx, |editor, cx| {
10241 editor.update_renderer_widths(new_renderer_widths, cx)
10242 })
10243 }) {
10244 // If the fold widths have changed, we need to prepaint
10245 // the element again to account for any changes in
10246 // wrapping.
10247 if request_layout.can_prepaint() {
10248 return self.prepaint(
10249 None,
10250 _inspector_id,
10251 bounds,
10252 request_layout,
10253 window,
10254 cx,
10255 );
10256 } else {
10257 debug_panic!(concat!(
10258 "skipping recursive prepaint at max depth. ",
10259 "renderer widths may be stale."
10260 ));
10261 }
10262 }
10263
10264 let longest_line_blame_width = self
10265 .editor
10266 .update(cx, |editor, cx| {
10267 if !editor.show_git_blame_inline {
10268 return None;
10269 }
10270 let blame = editor.blame.as_ref()?;
10271 let (_, blame_entry) = blame
10272 .update(cx, |blame, cx| {
10273 let row_infos =
10274 snapshot.row_infos(snapshot.longest_row()).next()?;
10275 blame.blame_for_rows(&[row_infos], cx).next()
10276 })
10277 .flatten()?;
10278 let mut element = render_inline_blame_entry(blame_entry, style, cx)?;
10279 let inline_blame_padding =
10280 ProjectSettings::get_global(cx).git.inline_blame.padding as f32
10281 * em_advance;
10282 Some(
10283 element
10284 .layout_as_root(AvailableSpace::min_size(), window, cx)
10285 .width
10286 + inline_blame_padding,
10287 )
10288 })
10289 .unwrap_or(Pixels::ZERO);
10290
10291 let longest_line_width = layout_line(
10292 snapshot.longest_row(),
10293 &snapshot,
10294 style,
10295 editor_width,
10296 is_row_soft_wrapped,
10297 window,
10298 cx,
10299 )
10300 .width;
10301
10302 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
10303 text_hitbox.bounds,
10304 glyph_grid_cell,
10305 size(
10306 longest_line_width,
10307 Pixels::from(max_row.as_f64() * f64::from(line_height)),
10308 ),
10309 longest_line_blame_width,
10310 EditorSettings::get_global(cx),
10311 );
10312
10313 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
10314
10315 let sticky_header_excerpt = if snapshot.buffer_snapshot().show_headers() {
10316 snapshot.sticky_header_excerpt(scroll_position.y)
10317 } else {
10318 None
10319 };
10320 let sticky_header_excerpt_id =
10321 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
10322
10323 let buffer = snapshot.buffer_snapshot();
10324 let start_buffer_row = MultiBufferRow(start_anchor.to_point(&buffer).row);
10325 let end_buffer_row = MultiBufferRow(end_anchor.to_point(&buffer).row);
10326
10327 let preliminary_scroll_pixel_position = point(
10328 scroll_position.x * f64::from(em_layout_width),
10329 scroll_position.y * f64::from(line_height),
10330 );
10331 let indent_guides = self.layout_indent_guides(
10332 content_origin,
10333 text_hitbox.origin,
10334 start_buffer_row..end_buffer_row,
10335 preliminary_scroll_pixel_position,
10336 line_height,
10337 &snapshot,
10338 window,
10339 cx,
10340 );
10341 let indent_guides_for_spacers = indent_guides.clone();
10342
10343 let blocks = (!is_minimap)
10344 .then(|| {
10345 window.with_element_namespace("blocks", |window| {
10346 self.render_blocks(
10347 start_row..end_row,
10348 &snapshot,
10349 &hitbox,
10350 &text_hitbox,
10351 editor_width,
10352 &mut scroll_width,
10353 &editor_margins,
10354 em_width,
10355 gutter_dimensions.full_width(),
10356 line_height,
10357 &mut line_layouts,
10358 &local_selections,
10359 &selected_buffer_ids,
10360 &latest_selection_anchors,
10361 is_row_soft_wrapped,
10362 sticky_header_excerpt_id,
10363 &indent_guides_for_spacers,
10364 window,
10365 cx,
10366 )
10367 })
10368 })
10369 .unwrap_or_default();
10370 let RenderBlocksOutput {
10371 non_spacer_blocks: mut blocks,
10372 mut spacer_blocks,
10373 row_block_types,
10374 resized_blocks,
10375 } = blocks;
10376 if let Some(resized_blocks) = resized_blocks {
10377 self.editor.update(cx, |editor, cx| {
10378 editor.resize_blocks(
10379 resized_blocks,
10380 autoscroll_request.map(|(autoscroll, _)| autoscroll),
10381 cx,
10382 )
10383 });
10384 if request_layout.can_prepaint() {
10385 return self.prepaint(
10386 None,
10387 _inspector_id,
10388 bounds,
10389 request_layout,
10390 window,
10391 cx,
10392 );
10393 } else {
10394 debug_panic!(concat!(
10395 "skipping recursive prepaint at max depth. ",
10396 "block layout may be stale."
10397 ));
10398 }
10399 }
10400
10401 let sticky_buffer_header = if self.should_show_buffer_headers() {
10402 sticky_header_excerpt.map(|sticky_header_excerpt| {
10403 window.with_element_namespace("blocks", |window| {
10404 self.layout_sticky_buffer_header(
10405 sticky_header_excerpt,
10406 scroll_position,
10407 line_height,
10408 right_margin,
10409 &snapshot,
10410 &hitbox,
10411 &selected_buffer_ids,
10412 &blocks,
10413 &latest_selection_anchors,
10414 window,
10415 cx,
10416 )
10417 })
10418 })
10419 } else {
10420 None
10421 };
10422
10423 let scroll_max: gpui::Point<ScrollPixelOffset> = point(
10424 ScrollPixelOffset::from(
10425 ((scroll_width - editor_width) / em_layout_width).max(0.0),
10426 ),
10427 max_scroll_top,
10428 );
10429
10430 self.editor.update(cx, |editor, cx| {
10431 if editor.scroll_manager.clamp_scroll_left(scroll_max.x, cx) {
10432 scroll_position.x = scroll_max.x.min(scroll_position.x);
10433 }
10434
10435 if needs_horizontal_autoscroll.0
10436 && let Some(new_scroll_position) = editor.autoscroll_horizontally(
10437 start_row,
10438 editor_width,
10439 scroll_width,
10440 em_advance,
10441 &line_layouts,
10442 autoscroll_request,
10443 window,
10444 cx,
10445 )
10446 {
10447 scroll_position = new_scroll_position;
10448 }
10449 });
10450
10451 let scroll_pixel_position = point(
10452 scroll_position.x * f64::from(em_layout_width),
10453 scroll_position.y * f64::from(line_height),
10454 );
10455 let sticky_headers = if !is_minimap
10456 && is_singleton
10457 && EditorSettings::get_global(cx).sticky_scroll.enabled
10458 {
10459 let relative = self.editor.read(cx).relative_line_numbers(cx);
10460 self.layout_sticky_headers(
10461 &snapshot,
10462 editor_width,
10463 is_row_soft_wrapped,
10464 line_height,
10465 scroll_pixel_position,
10466 content_origin,
10467 &gutter_dimensions,
10468 &gutter_hitbox,
10469 &text_hitbox,
10470 relative,
10471 current_selection_head,
10472 window,
10473 cx,
10474 )
10475 } else {
10476 None
10477 };
10478 self.editor.update(cx, |editor, _| {
10479 editor.scroll_manager.set_sticky_header_line_count(
10480 sticky_headers.as_ref().map_or(0, |h| h.lines.len()),
10481 );
10482 });
10483 let indent_guides =
10484 if scroll_pixel_position != preliminary_scroll_pixel_position {
10485 self.layout_indent_guides(
10486 content_origin,
10487 text_hitbox.origin,
10488 start_buffer_row..end_buffer_row,
10489 scroll_pixel_position,
10490 line_height,
10491 &snapshot,
10492 window,
10493 cx,
10494 )
10495 } else {
10496 indent_guides
10497 };
10498
10499 let crease_trailers =
10500 window.with_element_namespace("crease_trailers", |window| {
10501 self.prepaint_crease_trailers(
10502 crease_trailers,
10503 &line_layouts,
10504 line_height,
10505 content_origin,
10506 scroll_pixel_position,
10507 em_width,
10508 window,
10509 cx,
10510 )
10511 });
10512
10513 let (edit_prediction_popover, edit_prediction_popover_origin) = self
10514 .editor
10515 .update(cx, |editor, cx| {
10516 editor.render_edit_prediction_popover(
10517 &text_hitbox.bounds,
10518 content_origin,
10519 right_margin,
10520 &snapshot,
10521 start_row..end_row,
10522 scroll_position.y,
10523 scroll_position.y + height_in_lines,
10524 &line_layouts,
10525 line_height,
10526 scroll_position,
10527 scroll_pixel_position,
10528 newest_selection_head,
10529 editor_width,
10530 style,
10531 window,
10532 cx,
10533 )
10534 })
10535 .unzip();
10536
10537 let mut inline_diagnostics = self.layout_inline_diagnostics(
10538 &line_layouts,
10539 &crease_trailers,
10540 &row_block_types,
10541 content_origin,
10542 scroll_position,
10543 scroll_pixel_position,
10544 edit_prediction_popover_origin,
10545 start_row,
10546 end_row,
10547 line_height,
10548 em_width,
10549 style,
10550 window,
10551 cx,
10552 );
10553
10554 let mut inline_blame_layout = None;
10555 let mut inline_code_actions = None;
10556 if let Some(newest_selection_head) = newest_selection_head {
10557 let display_row = newest_selection_head.row();
10558 if (start_row..end_row).contains(&display_row)
10559 && !row_block_types.contains_key(&display_row)
10560 {
10561 inline_code_actions = self.layout_inline_code_actions(
10562 newest_selection_head,
10563 content_origin,
10564 scroll_position,
10565 scroll_pixel_position,
10566 line_height,
10567 &snapshot,
10568 window,
10569 cx,
10570 );
10571
10572 let line_ix = display_row.minus(start_row) as usize;
10573 if let (Some(row_info), Some(line_layout), Some(crease_trailer)) = (
10574 row_infos.get(line_ix),
10575 line_layouts.get(line_ix),
10576 crease_trailers.get(line_ix),
10577 ) {
10578 let crease_trailer_layout = crease_trailer.as_ref();
10579 if let Some(layout) = self.layout_inline_blame(
10580 display_row,
10581 row_info,
10582 line_layout,
10583 crease_trailer_layout,
10584 em_width,
10585 content_origin,
10586 scroll_position,
10587 scroll_pixel_position,
10588 line_height,
10589 window,
10590 cx,
10591 ) {
10592 inline_blame_layout = Some(layout);
10593 // Blame overrides inline diagnostics
10594 inline_diagnostics.remove(&display_row);
10595 }
10596 } else {
10597 log::error!(
10598 "bug: line_ix {} is out of bounds - row_infos.len(): {}, \
10599 line_layouts.len(): {}, \
10600 crease_trailers.len(): {}",
10601 line_ix,
10602 row_infos.len(),
10603 line_layouts.len(),
10604 crease_trailers.len(),
10605 );
10606 }
10607 }
10608 }
10609
10610 let blamed_display_rows = self.layout_blame_entries(
10611 &row_infos,
10612 em_width,
10613 scroll_position,
10614 line_height,
10615 &gutter_hitbox,
10616 gutter_dimensions.git_blame_entries_width,
10617 window,
10618 cx,
10619 );
10620
10621 let line_elements = self.prepaint_lines(
10622 start_row,
10623 &mut line_layouts,
10624 line_height,
10625 scroll_position,
10626 scroll_pixel_position,
10627 content_origin,
10628 window,
10629 cx,
10630 );
10631
10632 window.with_element_namespace("blocks", |window| {
10633 self.layout_blocks(
10634 &mut blocks,
10635 &hitbox,
10636 &gutter_hitbox,
10637 line_height,
10638 scroll_position,
10639 scroll_pixel_position,
10640 &editor_margins,
10641 window,
10642 cx,
10643 );
10644 self.layout_blocks(
10645 &mut spacer_blocks,
10646 &hitbox,
10647 &gutter_hitbox,
10648 line_height,
10649 scroll_position,
10650 scroll_pixel_position,
10651 &editor_margins,
10652 window,
10653 cx,
10654 );
10655 });
10656
10657 let cursors = self.collect_cursors(&snapshot, cx);
10658 let visible_row_range = start_row..end_row;
10659 let non_visible_cursors = cursors
10660 .iter()
10661 .any(|c| !visible_row_range.contains(&c.0.row()));
10662
10663 let visible_cursors = self.layout_visible_cursors(
10664 &snapshot,
10665 &selections,
10666 &row_block_types,
10667 start_row..end_row,
10668 &line_layouts,
10669 &text_hitbox,
10670 content_origin,
10671 scroll_position,
10672 scroll_pixel_position,
10673 line_height,
10674 em_width,
10675 em_advance,
10676 autoscroll_containing_element,
10677 &redacted_ranges,
10678 window,
10679 cx,
10680 );
10681
10682 let scrollbars_layout = self.layout_scrollbars(
10683 &snapshot,
10684 &scrollbar_layout_information,
10685 content_offset,
10686 scroll_position,
10687 non_visible_cursors,
10688 right_margin,
10689 editor_width,
10690 window,
10691 cx,
10692 );
10693
10694 let gutter_settings = EditorSettings::get_global(cx).gutter;
10695
10696 let context_menu_layout =
10697 if let Some(newest_selection_head) = newest_selection_head {
10698 let newest_selection_point =
10699 newest_selection_head.to_point(&snapshot.display_snapshot);
10700 if (start_row..end_row).contains(&newest_selection_head.row()) {
10701 self.layout_cursor_popovers(
10702 line_height,
10703 &text_hitbox,
10704 content_origin,
10705 right_margin,
10706 start_row,
10707 scroll_pixel_position,
10708 &line_layouts,
10709 newest_selection_head,
10710 newest_selection_point,
10711 style,
10712 window,
10713 cx,
10714 )
10715 } else {
10716 None
10717 }
10718 } else {
10719 None
10720 };
10721
10722 self.layout_gutter_menu(
10723 line_height,
10724 &text_hitbox,
10725 content_origin,
10726 right_margin,
10727 scroll_pixel_position,
10728 gutter_dimensions.width - gutter_dimensions.left_padding,
10729 window,
10730 cx,
10731 );
10732
10733 let test_indicators = if gutter_settings.runnables {
10734 self.layout_run_indicators(
10735 line_height,
10736 start_row..end_row,
10737 &row_infos,
10738 scroll_position,
10739 &gutter_dimensions,
10740 &gutter_hitbox,
10741 &snapshot,
10742 &mut breakpoint_rows,
10743 window,
10744 cx,
10745 )
10746 } else {
10747 Vec::new()
10748 };
10749
10750 let show_breakpoints = snapshot
10751 .show_breakpoints
10752 .unwrap_or(gutter_settings.breakpoints);
10753 let breakpoints = if show_breakpoints {
10754 self.layout_breakpoints(
10755 line_height,
10756 start_row..end_row,
10757 scroll_position,
10758 &gutter_dimensions,
10759 &gutter_hitbox,
10760 &snapshot,
10761 breakpoint_rows,
10762 &row_infos,
10763 window,
10764 cx,
10765 )
10766 } else {
10767 Vec::new()
10768 };
10769
10770 let git_gutter_width = Self::gutter_strip_width(line_height)
10771 + gutter_dimensions
10772 .git_blame_entries_width
10773 .unwrap_or_default();
10774 let available_width = gutter_dimensions.left_padding - git_gutter_width;
10775
10776 let max_line_number_length = self
10777 .editor
10778 .read(cx)
10779 .buffer()
10780 .read(cx)
10781 .snapshot(cx)
10782 .widest_line_number()
10783 .ilog10()
10784 + 1;
10785
10786 let diff_review_button = self
10787 .should_render_diff_review_button(
10788 start_row..end_row,
10789 &row_infos,
10790 &snapshot,
10791 cx,
10792 )
10793 .map(|(display_row, buffer_row)| {
10794 let is_wide = max_line_number_length
10795 >= EditorSettings::get_global(cx).gutter.min_line_number_digits
10796 as u32
10797 && buffer_row.is_some_and(|row| {
10798 (row + 1).ilog10() + 1 == max_line_number_length
10799 })
10800 || gutter_dimensions.right_padding == px(0.);
10801
10802 let button_width = if is_wide {
10803 available_width - px(6.)
10804 } else {
10805 available_width + em_width - px(6.)
10806 };
10807
10808 let button = self.editor.update(cx, |editor, cx| {
10809 editor
10810 .render_diff_review_button(display_row, button_width, cx)
10811 .into_any_element()
10812 });
10813 prepaint_gutter_button(
10814 button,
10815 display_row,
10816 line_height,
10817 &gutter_dimensions,
10818 scroll_position,
10819 &gutter_hitbox,
10820 window,
10821 cx,
10822 )
10823 });
10824
10825 self.layout_signature_help(
10826 &hitbox,
10827 content_origin,
10828 scroll_pixel_position,
10829 newest_selection_head,
10830 start_row,
10831 &line_layouts,
10832 line_height,
10833 em_width,
10834 context_menu_layout,
10835 window,
10836 cx,
10837 );
10838
10839 if !cx.has_active_drag() {
10840 self.layout_hover_popovers(
10841 &snapshot,
10842 &hitbox,
10843 start_row..end_row,
10844 content_origin,
10845 scroll_pixel_position,
10846 &line_layouts,
10847 line_height,
10848 em_width,
10849 context_menu_layout,
10850 window,
10851 cx,
10852 );
10853
10854 self.layout_blame_popover(&snapshot, &hitbox, line_height, window, cx);
10855 }
10856
10857 let mouse_context_menu = self.layout_mouse_context_menu(
10858 &snapshot,
10859 start_row..end_row,
10860 content_origin,
10861 window,
10862 cx,
10863 );
10864
10865 window.with_element_namespace("crease_toggles", |window| {
10866 self.prepaint_crease_toggles(
10867 &mut crease_toggles,
10868 line_height,
10869 &gutter_dimensions,
10870 gutter_settings,
10871 scroll_pixel_position,
10872 &gutter_hitbox,
10873 window,
10874 cx,
10875 )
10876 });
10877
10878 window.with_element_namespace("expand_toggles", |window| {
10879 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
10880 });
10881
10882 let wrap_guides = self.layout_wrap_guides(
10883 em_advance,
10884 scroll_position,
10885 content_origin,
10886 scrollbars_layout.as_ref(),
10887 vertical_scrollbar_width,
10888 &hitbox,
10889 window,
10890 cx,
10891 );
10892
10893 let minimap = window.with_element_namespace("minimap", |window| {
10894 self.layout_minimap(
10895 &snapshot,
10896 minimap_width,
10897 scroll_position,
10898 &scrollbar_layout_information,
10899 scrollbars_layout.as_ref(),
10900 window,
10901 cx,
10902 )
10903 });
10904
10905 let invisible_symbol_font_size = font_size / 2.;
10906 let whitespace_map = &self
10907 .editor
10908 .read(cx)
10909 .buffer
10910 .read(cx)
10911 .language_settings(cx)
10912 .whitespace_map;
10913
10914 let tab_char = whitespace_map.tab.clone();
10915 let tab_len = tab_char.len();
10916 let tab_invisible = window.text_system().shape_line(
10917 tab_char,
10918 invisible_symbol_font_size,
10919 &[TextRun {
10920 len: tab_len,
10921 font: self.style.text.font(),
10922 color: cx.theme().colors().editor_invisible,
10923 ..Default::default()
10924 }],
10925 None,
10926 );
10927
10928 let space_char = whitespace_map.space.clone();
10929 let space_len = space_char.len();
10930 let space_invisible = window.text_system().shape_line(
10931 space_char,
10932 invisible_symbol_font_size,
10933 &[TextRun {
10934 len: space_len,
10935 font: self.style.text.font(),
10936 color: cx.theme().colors().editor_invisible,
10937 ..Default::default()
10938 }],
10939 None,
10940 );
10941
10942 let mode = snapshot.mode.clone();
10943
10944 let sticky_scroll_header_height = sticky_headers
10945 .as_ref()
10946 .and_then(|headers| headers.lines.last())
10947 .map_or(Pixels::ZERO, |last| last.offset + line_height);
10948
10949 let has_sticky_buffer_header =
10950 sticky_buffer_header.is_some() || sticky_header_excerpt_id.is_some();
10951 let sticky_header_height = if has_sticky_buffer_header {
10952 let full_height = FILE_HEADER_HEIGHT as f32 * line_height;
10953 let display_row = blocks
10954 .iter()
10955 .filter(|block| block.is_buffer_header)
10956 .find_map(|block| {
10957 block.row.filter(|row| row.0 > scroll_position.y as u32)
10958 });
10959 let offset = match display_row {
10960 Some(display_row) => {
10961 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
10962 let offset = (scroll_position.y - max_row as f64).max(0.0);
10963 let slide_up =
10964 Pixels::from(offset * ScrollPixelOffset::from(line_height));
10965
10966 (full_height - slide_up).max(Pixels::ZERO)
10967 }
10968 None => full_height,
10969 };
10970 let header_bottom_padding =
10971 BUFFER_HEADER_PADDING.to_pixels(window.rem_size());
10972 sticky_scroll_header_height + offset - header_bottom_padding
10973 } else {
10974 sticky_scroll_header_height
10975 };
10976
10977 let (diff_hunk_controls, diff_hunk_control_bounds) =
10978 if is_read_only && !self.editor.read(cx).delegate_stage_and_restore {
10979 (vec![], vec![])
10980 } else {
10981 self.layout_diff_hunk_controls(
10982 start_row..end_row,
10983 &row_infos,
10984 &text_hitbox,
10985 current_selection_head,
10986 line_height,
10987 right_margin,
10988 scroll_pixel_position,
10989 sticky_header_height,
10990 &display_hunks,
10991 &highlighted_rows,
10992 self.editor.clone(),
10993 window,
10994 cx,
10995 )
10996 };
10997
10998 let position_map = Rc::new(PositionMap {
10999 size: bounds.size,
11000 visible_row_range,
11001 scroll_position,
11002 scroll_pixel_position,
11003 scroll_max,
11004 line_layouts,
11005 line_height,
11006 em_width,
11007 em_advance,
11008 em_layout_width,
11009 snapshot,
11010 text_align: self.style.text.text_align,
11011 content_width: text_hitbox.size.width,
11012 gutter_hitbox: gutter_hitbox.clone(),
11013 text_hitbox: text_hitbox.clone(),
11014 inline_blame_bounds: inline_blame_layout
11015 .as_ref()
11016 .map(|layout| (layout.bounds, layout.buffer_id, layout.entry.clone())),
11017 display_hunks: display_hunks.clone(),
11018 diff_hunk_control_bounds,
11019 });
11020
11021 self.editor.update(cx, |editor, _| {
11022 editor.last_position_map = Some(position_map.clone())
11023 });
11024
11025 EditorLayout {
11026 mode,
11027 position_map,
11028 visible_display_row_range: start_row..end_row,
11029 wrap_guides,
11030 indent_guides,
11031 hitbox,
11032 gutter_hitbox,
11033 display_hunks,
11034 content_origin,
11035 scrollbars_layout,
11036 minimap,
11037 active_rows,
11038 highlighted_rows,
11039 highlighted_ranges,
11040 highlighted_gutter_ranges,
11041 redacted_ranges,
11042 document_colors,
11043 line_elements,
11044 line_numbers,
11045 blamed_display_rows,
11046 inline_diagnostics,
11047 inline_blame_layout,
11048 inline_code_actions,
11049 blocks,
11050 spacer_blocks,
11051 cursors,
11052 visible_cursors,
11053 selections,
11054 edit_prediction_popover,
11055 diff_hunk_controls,
11056 mouse_context_menu,
11057 test_indicators,
11058 breakpoints,
11059 diff_review_button,
11060 crease_toggles,
11061 crease_trailers,
11062 tab_invisible,
11063 space_invisible,
11064 sticky_buffer_header,
11065 sticky_headers,
11066 expand_toggles,
11067 text_align: self.style.text.text_align,
11068 content_width: text_hitbox.size.width,
11069 }
11070 })
11071 })
11072 })
11073 }
11074
11075 fn paint(
11076 &mut self,
11077 _: Option<&GlobalElementId>,
11078 _inspector_id: Option<&gpui::InspectorElementId>,
11079 bounds: Bounds<gpui::Pixels>,
11080 _: &mut Self::RequestLayoutState,
11081 layout: &mut Self::PrepaintState,
11082 window: &mut Window,
11083 cx: &mut App,
11084 ) {
11085 if !layout.mode.is_minimap() {
11086 let focus_handle = self.editor.focus_handle(cx);
11087 let key_context = self
11088 .editor
11089 .update(cx, |editor, cx| editor.key_context(window, cx));
11090
11091 window.set_key_context(key_context);
11092 window.handle_input(
11093 &focus_handle,
11094 ElementInputHandler::new(bounds, self.editor.clone()),
11095 cx,
11096 );
11097 self.register_actions(window, cx);
11098 self.register_key_listeners(window, cx, layout);
11099 }
11100
11101 let text_style = TextStyleRefinement {
11102 font_size: Some(self.style.text.font_size),
11103 line_height: Some(self.style.text.line_height),
11104 ..Default::default()
11105 };
11106 let rem_size = self.rem_size(cx);
11107 window.with_rem_size(rem_size, |window| {
11108 window.with_text_style(Some(text_style), |window| {
11109 window.with_content_mask(Some(ContentMask { bounds }), |window| {
11110 self.paint_mouse_listeners(layout, window, cx);
11111 self.paint_background(layout, window, cx);
11112
11113 self.paint_indent_guides(layout, window, cx);
11114
11115 if layout.gutter_hitbox.size.width > Pixels::ZERO {
11116 self.paint_blamed_display_rows(layout, window, cx);
11117 self.paint_line_numbers(layout, window, cx);
11118 }
11119
11120 self.paint_text(layout, window, cx);
11121
11122 if !layout.spacer_blocks.is_empty() {
11123 window.with_element_namespace("blocks", |window| {
11124 self.paint_spacer_blocks(layout, window, cx);
11125 });
11126 }
11127
11128 if layout.gutter_hitbox.size.width > Pixels::ZERO {
11129 self.paint_gutter_highlights(layout, window, cx);
11130 self.paint_gutter_indicators(layout, window, cx);
11131 }
11132
11133 if !layout.blocks.is_empty() {
11134 window.with_element_namespace("blocks", |window| {
11135 self.paint_non_spacer_blocks(layout, window, cx);
11136 });
11137 }
11138
11139 window.with_element_namespace("blocks", |window| {
11140 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
11141 sticky_header.paint(window, cx)
11142 }
11143 });
11144
11145 self.paint_sticky_headers(layout, window, cx);
11146 self.paint_minimap(layout, window, cx);
11147 self.paint_scrollbars(layout, window, cx);
11148 self.paint_edit_prediction_popover(layout, window, cx);
11149 self.paint_mouse_context_menu(layout, window, cx);
11150 });
11151 })
11152 })
11153 }
11154}
11155
11156pub(super) fn gutter_bounds(
11157 editor_bounds: Bounds<Pixels>,
11158 gutter_dimensions: GutterDimensions,
11159) -> Bounds<Pixels> {
11160 Bounds {
11161 origin: editor_bounds.origin,
11162 size: size(gutter_dimensions.width, editor_bounds.size.height),
11163 }
11164}
11165
11166#[derive(Clone, Copy)]
11167struct ContextMenuLayout {
11168 y_flipped: bool,
11169 bounds: Bounds<Pixels>,
11170}
11171
11172/// Holds information required for layouting the editor scrollbars.
11173struct ScrollbarLayoutInformation {
11174 /// The bounds of the editor area (excluding the content offset).
11175 editor_bounds: Bounds<Pixels>,
11176 /// The available range to scroll within the document.
11177 scroll_range: Size<Pixels>,
11178 /// The space available for one glyph in the editor.
11179 glyph_grid_cell: Size<Pixels>,
11180}
11181
11182impl ScrollbarLayoutInformation {
11183 pub fn new(
11184 editor_bounds: Bounds<Pixels>,
11185 glyph_grid_cell: Size<Pixels>,
11186 document_size: Size<Pixels>,
11187 longest_line_blame_width: Pixels,
11188 settings: &EditorSettings,
11189 ) -> Self {
11190 let vertical_overscroll = match settings.scroll_beyond_last_line {
11191 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
11192 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
11193 ScrollBeyondLastLine::VerticalScrollMargin => {
11194 (1.0 + settings.vertical_scroll_margin) as f32 * glyph_grid_cell.height
11195 }
11196 };
11197
11198 let overscroll = size(longest_line_blame_width, vertical_overscroll);
11199
11200 ScrollbarLayoutInformation {
11201 editor_bounds,
11202 scroll_range: document_size + overscroll,
11203 glyph_grid_cell,
11204 }
11205 }
11206}
11207
11208impl IntoElement for EditorElement {
11209 type Element = Self;
11210
11211 fn into_element(self) -> Self::Element {
11212 self
11213 }
11214}
11215
11216pub struct EditorLayout {
11217 position_map: Rc<PositionMap>,
11218 hitbox: Hitbox,
11219 gutter_hitbox: Hitbox,
11220 content_origin: gpui::Point<Pixels>,
11221 scrollbars_layout: Option<EditorScrollbars>,
11222 minimap: Option<MinimapLayout>,
11223 mode: EditorMode,
11224 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
11225 indent_guides: Option<Vec<IndentGuideLayout>>,
11226 visible_display_row_range: Range<DisplayRow>,
11227 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
11228 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
11229 line_elements: SmallVec<[AnyElement; 1]>,
11230 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
11231 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
11232 blamed_display_rows: Option<Vec<AnyElement>>,
11233 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
11234 inline_blame_layout: Option<InlineBlameLayout>,
11235 inline_code_actions: Option<AnyElement>,
11236 blocks: Vec<BlockLayout>,
11237 spacer_blocks: Vec<BlockLayout>,
11238 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
11239 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
11240 redacted_ranges: Vec<Range<DisplayPoint>>,
11241 cursors: Vec<(DisplayPoint, Hsla)>,
11242 visible_cursors: Vec<CursorLayout>,
11243 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
11244 test_indicators: Vec<AnyElement>,
11245 breakpoints: Vec<AnyElement>,
11246 diff_review_button: Option<AnyElement>,
11247 crease_toggles: Vec<Option<AnyElement>>,
11248 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
11249 diff_hunk_controls: Vec<AnyElement>,
11250 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
11251 edit_prediction_popover: Option<AnyElement>,
11252 mouse_context_menu: Option<AnyElement>,
11253 tab_invisible: ShapedLine,
11254 space_invisible: ShapedLine,
11255 sticky_buffer_header: Option<AnyElement>,
11256 sticky_headers: Option<StickyHeaders>,
11257 document_colors: Option<(DocumentColorsRenderMode, Vec<(Range<DisplayPoint>, Hsla)>)>,
11258 text_align: TextAlign,
11259 content_width: Pixels,
11260}
11261
11262struct StickyHeaders {
11263 lines: Vec<StickyHeaderLine>,
11264 gutter_background: Hsla,
11265 content_background: Hsla,
11266 gutter_right_padding: Pixels,
11267}
11268
11269struct StickyHeaderLine {
11270 row: DisplayRow,
11271 offset: Pixels,
11272 line: LineWithInvisibles,
11273 line_number: Option<ShapedLine>,
11274 elements: SmallVec<[AnyElement; 1]>,
11275 available_text_width: Pixels,
11276 target_anchor: Anchor,
11277 hitbox: Hitbox,
11278}
11279
11280impl EditorLayout {
11281 fn line_end_overshoot(&self) -> Pixels {
11282 0.15 * self.position_map.line_height
11283 }
11284}
11285
11286impl StickyHeaders {
11287 fn paint(
11288 &mut self,
11289 layout: &mut EditorLayout,
11290 whitespace_setting: ShowWhitespaceSetting,
11291 window: &mut Window,
11292 cx: &mut App,
11293 ) {
11294 let line_height = layout.position_map.line_height;
11295
11296 for line in self.lines.iter_mut().rev() {
11297 window.paint_layer(
11298 Bounds::new(
11299 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
11300 size(line.hitbox.size.width, line_height),
11301 ),
11302 |window| {
11303 let gutter_bounds = Bounds::new(
11304 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
11305 size(layout.gutter_hitbox.size.width, line_height),
11306 );
11307 window.paint_quad(fill(gutter_bounds, self.gutter_background));
11308
11309 let text_bounds = Bounds::new(
11310 layout.position_map.text_hitbox.origin + point(Pixels::ZERO, line.offset),
11311 size(line.available_text_width, line_height),
11312 );
11313 window.paint_quad(fill(text_bounds, self.content_background));
11314
11315 if line.hitbox.is_hovered(window) {
11316 let hover_overlay = cx.theme().colors().panel_overlay_hover;
11317 window.paint_quad(fill(gutter_bounds, hover_overlay));
11318 window.paint_quad(fill(text_bounds, hover_overlay));
11319 }
11320
11321 line.paint(
11322 layout,
11323 self.gutter_right_padding,
11324 line.available_text_width,
11325 layout.content_origin,
11326 line_height,
11327 whitespace_setting,
11328 window,
11329 cx,
11330 );
11331 },
11332 );
11333
11334 window.set_cursor_style(CursorStyle::PointingHand, &line.hitbox);
11335 }
11336 }
11337}
11338
11339impl StickyHeaderLine {
11340 fn new(
11341 row: DisplayRow,
11342 offset: Pixels,
11343 mut line: LineWithInvisibles,
11344 line_number: Option<ShapedLine>,
11345 target_anchor: Anchor,
11346 line_height: Pixels,
11347 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
11348 content_origin: gpui::Point<Pixels>,
11349 gutter_hitbox: &Hitbox,
11350 text_hitbox: &Hitbox,
11351 window: &mut Window,
11352 cx: &mut App,
11353 ) -> Self {
11354 let mut elements = SmallVec::<[AnyElement; 1]>::new();
11355 line.prepaint_with_custom_offset(
11356 line_height,
11357 scroll_pixel_position,
11358 content_origin,
11359 offset,
11360 &mut elements,
11361 window,
11362 cx,
11363 );
11364
11365 let hitbox_bounds = Bounds::new(
11366 gutter_hitbox.origin + point(Pixels::ZERO, offset),
11367 size(text_hitbox.right() - gutter_hitbox.left(), line_height),
11368 );
11369 let available_text_width =
11370 (hitbox_bounds.size.width - gutter_hitbox.size.width).max(Pixels::ZERO);
11371
11372 Self {
11373 row,
11374 offset,
11375 line,
11376 line_number,
11377 elements,
11378 available_text_width,
11379 target_anchor,
11380 hitbox: window.insert_hitbox(hitbox_bounds, HitboxBehavior::BlockMouseExceptScroll),
11381 }
11382 }
11383
11384 fn paint(
11385 &mut self,
11386 layout: &EditorLayout,
11387 gutter_right_padding: Pixels,
11388 available_text_width: Pixels,
11389 content_origin: gpui::Point<Pixels>,
11390 line_height: Pixels,
11391 whitespace_setting: ShowWhitespaceSetting,
11392 window: &mut Window,
11393 cx: &mut App,
11394 ) {
11395 window.with_content_mask(
11396 Some(ContentMask {
11397 bounds: Bounds::new(
11398 layout.position_map.text_hitbox.bounds.origin
11399 + point(Pixels::ZERO, self.offset),
11400 size(available_text_width, line_height),
11401 ),
11402 }),
11403 |window| {
11404 self.line.draw_with_custom_offset(
11405 layout,
11406 self.row,
11407 content_origin,
11408 self.offset,
11409 whitespace_setting,
11410 &[],
11411 window,
11412 cx,
11413 );
11414 for element in &mut self.elements {
11415 element.paint(window, cx);
11416 }
11417 },
11418 );
11419
11420 if let Some(line_number) = &self.line_number {
11421 let gutter_origin = layout.gutter_hitbox.origin + point(Pixels::ZERO, self.offset);
11422 let gutter_width = layout.gutter_hitbox.size.width;
11423 let origin = point(
11424 gutter_origin.x + gutter_width - gutter_right_padding - line_number.width,
11425 gutter_origin.y,
11426 );
11427 line_number
11428 .paint(origin, line_height, TextAlign::Left, None, window, cx)
11429 .log_err();
11430 }
11431 }
11432}
11433
11434#[derive(Debug)]
11435struct LineNumberSegment {
11436 shaped_line: ShapedLine,
11437 hitbox: Option<Hitbox>,
11438}
11439
11440#[derive(Debug)]
11441struct LineNumberLayout {
11442 segments: SmallVec<[LineNumberSegment; 1]>,
11443}
11444
11445struct ColoredRange<T> {
11446 start: T,
11447 end: T,
11448 color: Hsla,
11449}
11450
11451impl Along for ScrollbarAxes {
11452 type Unit = bool;
11453
11454 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
11455 match axis {
11456 ScrollbarAxis::Horizontal => self.horizontal,
11457 ScrollbarAxis::Vertical => self.vertical,
11458 }
11459 }
11460
11461 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
11462 match axis {
11463 ScrollbarAxis::Horizontal => ScrollbarAxes {
11464 horizontal: f(self.horizontal),
11465 vertical: self.vertical,
11466 },
11467 ScrollbarAxis::Vertical => ScrollbarAxes {
11468 horizontal: self.horizontal,
11469 vertical: f(self.vertical),
11470 },
11471 }
11472 }
11473}
11474
11475#[derive(Clone)]
11476struct EditorScrollbars {
11477 pub vertical: Option<ScrollbarLayout>,
11478 pub horizontal: Option<ScrollbarLayout>,
11479 pub visible: bool,
11480}
11481
11482impl EditorScrollbars {
11483 pub fn from_scrollbar_axes(
11484 show_scrollbar: ScrollbarAxes,
11485 layout_information: &ScrollbarLayoutInformation,
11486 content_offset: gpui::Point<Pixels>,
11487 scroll_position: gpui::Point<f64>,
11488 scrollbar_width: Pixels,
11489 right_margin: Pixels,
11490 editor_width: Pixels,
11491 show_scrollbars: bool,
11492 scrollbar_state: Option<&ActiveScrollbarState>,
11493 window: &mut Window,
11494 ) -> Self {
11495 let ScrollbarLayoutInformation {
11496 editor_bounds,
11497 scroll_range,
11498 glyph_grid_cell,
11499 } = layout_information;
11500
11501 let viewport_size = size(editor_width, editor_bounds.size.height);
11502
11503 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
11504 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
11505 Corner::BottomLeft,
11506 editor_bounds.bottom_left(),
11507 size(
11508 // The horizontal viewport size differs from the space available for the
11509 // horizontal scrollbar, so we have to manually stitch it together here.
11510 editor_bounds.size.width - right_margin,
11511 scrollbar_width,
11512 ),
11513 ),
11514 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
11515 Corner::TopRight,
11516 editor_bounds.top_right(),
11517 size(scrollbar_width, viewport_size.height),
11518 ),
11519 };
11520
11521 let mut create_scrollbar_layout = |axis| {
11522 let viewport_size = viewport_size.along(axis);
11523 let scroll_range = scroll_range.along(axis);
11524
11525 // We always want a vertical scrollbar track for scrollbar diagnostic visibility.
11526 (show_scrollbar.along(axis)
11527 && (axis == ScrollbarAxis::Vertical || scroll_range > viewport_size))
11528 .then(|| {
11529 ScrollbarLayout::new(
11530 window.insert_hitbox(scrollbar_bounds_for(axis), HitboxBehavior::Normal),
11531 viewport_size,
11532 scroll_range,
11533 glyph_grid_cell.along(axis),
11534 content_offset.along(axis),
11535 scroll_position.along(axis),
11536 show_scrollbars,
11537 axis,
11538 )
11539 .with_thumb_state(
11540 scrollbar_state.and_then(|state| state.thumb_state_for_axis(axis)),
11541 )
11542 })
11543 };
11544
11545 Self {
11546 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
11547 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
11548 visible: show_scrollbars,
11549 }
11550 }
11551
11552 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
11553 [
11554 (&self.vertical, ScrollbarAxis::Vertical),
11555 (&self.horizontal, ScrollbarAxis::Horizontal),
11556 ]
11557 .into_iter()
11558 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
11559 }
11560
11561 /// Returns the currently hovered scrollbar axis, if any.
11562 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
11563 self.iter_scrollbars()
11564 .find(|s| s.0.hitbox.is_hovered(window))
11565 }
11566}
11567
11568#[derive(Clone)]
11569struct ScrollbarLayout {
11570 hitbox: Hitbox,
11571 visible_range: Range<ScrollOffset>,
11572 text_unit_size: Pixels,
11573 thumb_bounds: Option<Bounds<Pixels>>,
11574 thumb_state: ScrollbarThumbState,
11575}
11576
11577impl ScrollbarLayout {
11578 const BORDER_WIDTH: Pixels = px(1.0);
11579 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
11580 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
11581 const MIN_THUMB_SIZE: Pixels = px(25.0);
11582
11583 fn new(
11584 scrollbar_track_hitbox: Hitbox,
11585 viewport_size: Pixels,
11586 scroll_range: Pixels,
11587 glyph_space: Pixels,
11588 content_offset: Pixels,
11589 scroll_position: ScrollOffset,
11590 show_thumb: bool,
11591 axis: ScrollbarAxis,
11592 ) -> Self {
11593 let track_bounds = scrollbar_track_hitbox.bounds;
11594 // The length of the track available to the scrollbar thumb. We deliberately
11595 // exclude the content size here so that the thumb aligns with the content.
11596 let track_length = track_bounds.size.along(axis) - content_offset;
11597
11598 Self::new_with_hitbox_and_track_length(
11599 scrollbar_track_hitbox,
11600 track_length,
11601 viewport_size,
11602 scroll_range.into(),
11603 glyph_space,
11604 content_offset.into(),
11605 scroll_position,
11606 show_thumb,
11607 axis,
11608 )
11609 }
11610
11611 fn for_minimap(
11612 minimap_track_hitbox: Hitbox,
11613 visible_lines: f64,
11614 total_editor_lines: f64,
11615 minimap_line_height: Pixels,
11616 scroll_position: ScrollOffset,
11617 minimap_scroll_top: ScrollOffset,
11618 show_thumb: bool,
11619 ) -> Self {
11620 // The scrollbar thumb size is calculated as
11621 // (visible_content/total_content) Γ scrollbar_track_length.
11622 //
11623 // For the minimap's thumb layout, we leverage this by setting the
11624 // scrollbar track length to the entire document size (using minimap line
11625 // height). This creates a thumb that exactly represents the editor
11626 // viewport scaled to minimap proportions.
11627 //
11628 // We adjust the thumb position relative to `minimap_scroll_top` to
11629 // accommodate for the deliberately oversized track.
11630 //
11631 // This approach ensures that the minimap thumb accurately reflects the
11632 // editor's current scroll position whilst nicely synchronizing the minimap
11633 // thumb and scrollbar thumb.
11634 let scroll_range = total_editor_lines * f64::from(minimap_line_height);
11635 let viewport_size = visible_lines * f64::from(minimap_line_height);
11636
11637 let track_top_offset = -minimap_scroll_top * f64::from(minimap_line_height);
11638
11639 Self::new_with_hitbox_and_track_length(
11640 minimap_track_hitbox,
11641 Pixels::from(scroll_range),
11642 Pixels::from(viewport_size),
11643 scroll_range,
11644 minimap_line_height,
11645 track_top_offset,
11646 scroll_position,
11647 show_thumb,
11648 ScrollbarAxis::Vertical,
11649 )
11650 }
11651
11652 fn new_with_hitbox_and_track_length(
11653 scrollbar_track_hitbox: Hitbox,
11654 track_length: Pixels,
11655 viewport_size: Pixels,
11656 scroll_range: f64,
11657 glyph_space: Pixels,
11658 content_offset: ScrollOffset,
11659 scroll_position: ScrollOffset,
11660 show_thumb: bool,
11661 axis: ScrollbarAxis,
11662 ) -> Self {
11663 let text_units_per_page = viewport_size.to_f64() / glyph_space.to_f64();
11664 let visible_range = scroll_position..scroll_position + text_units_per_page;
11665 let total_text_units = scroll_range / glyph_space.to_f64();
11666
11667 let thumb_percentage = text_units_per_page / total_text_units;
11668 let thumb_size = Pixels::from(ScrollOffset::from(track_length) * thumb_percentage)
11669 .max(ScrollbarLayout::MIN_THUMB_SIZE)
11670 .min(track_length);
11671
11672 let text_unit_divisor = (total_text_units - text_units_per_page).max(0.);
11673
11674 let content_larger_than_viewport = text_unit_divisor > 0.;
11675
11676 let text_unit_size = if content_larger_than_viewport {
11677 Pixels::from(ScrollOffset::from(track_length - thumb_size) / text_unit_divisor)
11678 } else {
11679 glyph_space
11680 };
11681
11682 let thumb_bounds = (show_thumb && content_larger_than_viewport).then(|| {
11683 Self::thumb_bounds(
11684 &scrollbar_track_hitbox,
11685 content_offset,
11686 visible_range.start,
11687 text_unit_size,
11688 thumb_size,
11689 axis,
11690 )
11691 });
11692
11693 ScrollbarLayout {
11694 hitbox: scrollbar_track_hitbox,
11695 visible_range,
11696 text_unit_size,
11697 thumb_bounds,
11698 thumb_state: Default::default(),
11699 }
11700 }
11701
11702 fn with_thumb_state(self, thumb_state: Option<ScrollbarThumbState>) -> Self {
11703 if let Some(thumb_state) = thumb_state {
11704 Self {
11705 thumb_state,
11706 ..self
11707 }
11708 } else {
11709 self
11710 }
11711 }
11712
11713 fn thumb_bounds(
11714 scrollbar_track: &Hitbox,
11715 content_offset: f64,
11716 visible_range_start: f64,
11717 text_unit_size: Pixels,
11718 thumb_size: Pixels,
11719 axis: ScrollbarAxis,
11720 ) -> Bounds<Pixels> {
11721 let thumb_origin = scrollbar_track.origin.apply_along(axis, |origin| {
11722 origin
11723 + Pixels::from(
11724 content_offset + visible_range_start * ScrollOffset::from(text_unit_size),
11725 )
11726 });
11727 Bounds::new(
11728 thumb_origin,
11729 scrollbar_track.size.apply_along(axis, |_| thumb_size),
11730 )
11731 }
11732
11733 fn thumb_hovered(&self, position: &gpui::Point<Pixels>) -> bool {
11734 self.thumb_bounds
11735 .is_some_and(|bounds| bounds.contains(position))
11736 }
11737
11738 fn marker_quads_for_ranges(
11739 &self,
11740 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
11741 column: Option<usize>,
11742 ) -> Vec<PaintQuad> {
11743 struct MinMax {
11744 min: Pixels,
11745 max: Pixels,
11746 }
11747 let (x_range, height_limit) = if let Some(column) = column {
11748 let column_width = ((self.hitbox.size.width - Self::BORDER_WIDTH) / 3.0).floor();
11749 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
11750 let end = start + column_width;
11751 (
11752 Range { start, end },
11753 MinMax {
11754 min: Self::MIN_MARKER_HEIGHT,
11755 max: px(f32::MAX),
11756 },
11757 )
11758 } else {
11759 (
11760 Range {
11761 start: Self::BORDER_WIDTH,
11762 end: self.hitbox.size.width,
11763 },
11764 MinMax {
11765 min: Self::LINE_MARKER_HEIGHT,
11766 max: Self::LINE_MARKER_HEIGHT,
11767 },
11768 )
11769 };
11770
11771 let row_to_y = |row: DisplayRow| row.as_f64() as f32 * self.text_unit_size;
11772 let mut pixel_ranges = row_ranges
11773 .into_iter()
11774 .map(|range| {
11775 let start_y = row_to_y(range.start);
11776 let end_y = row_to_y(range.end)
11777 + self
11778 .text_unit_size
11779 .max(height_limit.min)
11780 .min(height_limit.max);
11781 ColoredRange {
11782 start: start_y,
11783 end: end_y,
11784 color: range.color,
11785 }
11786 })
11787 .peekable();
11788
11789 let mut quads = Vec::new();
11790 while let Some(mut pixel_range) = pixel_ranges.next() {
11791 while let Some(next_pixel_range) = pixel_ranges.peek() {
11792 if pixel_range.end >= next_pixel_range.start - px(1.0)
11793 && pixel_range.color == next_pixel_range.color
11794 {
11795 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
11796 pixel_ranges.next();
11797 } else {
11798 break;
11799 }
11800 }
11801
11802 let bounds = Bounds::from_corners(
11803 point(x_range.start, pixel_range.start),
11804 point(x_range.end, pixel_range.end),
11805 );
11806 quads.push(quad(
11807 bounds,
11808 Corners::default(),
11809 pixel_range.color,
11810 Edges::default(),
11811 Hsla::transparent_black(),
11812 BorderStyle::default(),
11813 ));
11814 }
11815
11816 quads
11817 }
11818}
11819
11820struct MinimapLayout {
11821 pub minimap: AnyElement,
11822 pub thumb_layout: ScrollbarLayout,
11823 pub minimap_scroll_top: ScrollOffset,
11824 pub minimap_line_height: Pixels,
11825 pub thumb_border_style: MinimapThumbBorder,
11826 pub max_scroll_top: ScrollOffset,
11827}
11828
11829impl MinimapLayout {
11830 /// The minimum width of the minimap in columns. If the minimap is smaller than this, it will be hidden.
11831 const MINIMAP_MIN_WIDTH_COLUMNS: f32 = 20.;
11832 /// The minimap width as a percentage of the editor width.
11833 const MINIMAP_WIDTH_PCT: f32 = 0.15;
11834 /// Calculates the scroll top offset the minimap editor has to have based on the
11835 /// current scroll progress.
11836 fn calculate_minimap_top_offset(
11837 document_lines: f64,
11838 visible_editor_lines: f64,
11839 visible_minimap_lines: f64,
11840 scroll_position: f64,
11841 ) -> ScrollOffset {
11842 let non_visible_document_lines = (document_lines - visible_editor_lines).max(0.);
11843 if non_visible_document_lines == 0. {
11844 0.
11845 } else {
11846 let scroll_percentage = (scroll_position / non_visible_document_lines).clamp(0., 1.);
11847 scroll_percentage * (document_lines - visible_minimap_lines).max(0.)
11848 }
11849 }
11850}
11851
11852struct CreaseTrailerLayout {
11853 element: AnyElement,
11854 bounds: Bounds<Pixels>,
11855}
11856
11857pub(crate) struct PositionMap {
11858 pub size: Size<Pixels>,
11859 pub line_height: Pixels,
11860 pub scroll_position: gpui::Point<ScrollOffset>,
11861 pub scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
11862 pub scroll_max: gpui::Point<ScrollOffset>,
11863 pub em_width: Pixels,
11864 pub em_advance: Pixels,
11865 pub em_layout_width: Pixels,
11866 pub visible_row_range: Range<DisplayRow>,
11867 pub line_layouts: Vec<LineWithInvisibles>,
11868 pub snapshot: EditorSnapshot,
11869 pub text_align: TextAlign,
11870 pub content_width: Pixels,
11871 pub text_hitbox: Hitbox,
11872 pub gutter_hitbox: Hitbox,
11873 pub inline_blame_bounds: Option<(Bounds<Pixels>, BufferId, BlameEntry)>,
11874 pub display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
11875 pub diff_hunk_control_bounds: Vec<(DisplayRow, Bounds<Pixels>)>,
11876}
11877
11878#[derive(Debug, Copy, Clone)]
11879pub struct PointForPosition {
11880 pub previous_valid: DisplayPoint,
11881 pub next_valid: DisplayPoint,
11882 pub exact_unclipped: DisplayPoint,
11883 pub column_overshoot_after_line_end: u32,
11884}
11885
11886impl PointForPosition {
11887 pub fn as_valid(&self) -> Option<DisplayPoint> {
11888 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
11889 Some(self.previous_valid)
11890 } else {
11891 None
11892 }
11893 }
11894
11895 pub fn intersects_selection(&self, selection: &Selection<DisplayPoint>) -> bool {
11896 let Some(valid_point) = self.as_valid() else {
11897 return false;
11898 };
11899 let range = selection.range();
11900
11901 let candidate_row = valid_point.row();
11902 let candidate_col = valid_point.column();
11903
11904 let start_row = range.start.row();
11905 let start_col = range.start.column();
11906 let end_row = range.end.row();
11907 let end_col = range.end.column();
11908
11909 if candidate_row < start_row || candidate_row > end_row {
11910 false
11911 } else if start_row == end_row {
11912 candidate_col >= start_col && candidate_col < end_col
11913 } else if candidate_row == start_row {
11914 candidate_col >= start_col
11915 } else if candidate_row == end_row {
11916 candidate_col < end_col
11917 } else {
11918 true
11919 }
11920 }
11921}
11922
11923impl PositionMap {
11924 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
11925 let text_bounds = self.text_hitbox.bounds;
11926 let scroll_position = self.snapshot.scroll_position();
11927 let position = position - text_bounds.origin;
11928 let y = position.y.max(px(0.)).min(self.size.height);
11929 let x = position.x + (scroll_position.x as f32 * self.em_layout_width);
11930 let row = ((y / self.line_height) as f64 + scroll_position.y) as u32;
11931
11932 let (column, x_overshoot_after_line_end) = if let Some(line) = self
11933 .line_layouts
11934 .get(row as usize - scroll_position.y as usize)
11935 {
11936 let alignment_offset = line.alignment_offset(self.text_align, self.content_width);
11937 let x_relative_to_text = x - alignment_offset;
11938 if let Some(ix) = line.index_for_x(x_relative_to_text) {
11939 (ix as u32, px(0.))
11940 } else {
11941 (line.len as u32, px(0.).max(x_relative_to_text - line.width))
11942 }
11943 } else {
11944 (0, x)
11945 };
11946
11947 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
11948 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
11949 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
11950
11951 let column_overshoot_after_line_end =
11952 (x_overshoot_after_line_end / self.em_layout_width) as u32;
11953 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
11954 PointForPosition {
11955 previous_valid,
11956 next_valid,
11957 exact_unclipped,
11958 column_overshoot_after_line_end,
11959 }
11960 }
11961}
11962
11963pub(crate) struct BlockLayout {
11964 pub(crate) id: BlockId,
11965 pub(crate) x_offset: Pixels,
11966 pub(crate) row: Option<DisplayRow>,
11967 pub(crate) element: AnyElement,
11968 pub(crate) available_space: Size<AvailableSpace>,
11969 pub(crate) style: BlockStyle,
11970 pub(crate) overlaps_gutter: bool,
11971 pub(crate) is_buffer_header: bool,
11972}
11973
11974pub fn layout_line(
11975 row: DisplayRow,
11976 snapshot: &EditorSnapshot,
11977 style: &EditorStyle,
11978 text_width: Pixels,
11979 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
11980 window: &mut Window,
11981 cx: &mut App,
11982) -> LineWithInvisibles {
11983 let use_tree_sitter =
11984 !snapshot.semantic_tokens_enabled || snapshot.use_tree_sitter_for_syntax(row, cx);
11985 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), use_tree_sitter, style);
11986 LineWithInvisibles::from_chunks(
11987 chunks,
11988 style,
11989 MAX_LINE_LEN,
11990 1,
11991 &snapshot.mode,
11992 text_width,
11993 is_row_soft_wrapped,
11994 &[],
11995 window,
11996 cx,
11997 )
11998 .pop()
11999 .unwrap()
12000}
12001
12002#[derive(Debug, Clone)]
12003pub struct IndentGuideLayout {
12004 origin: gpui::Point<Pixels>,
12005 length: Pixels,
12006 single_indent_width: Pixels,
12007 display_row_range: Range<DisplayRow>,
12008 depth: u32,
12009 active: bool,
12010 settings: IndentGuideSettings,
12011}
12012
12013pub struct CursorLayout {
12014 origin: gpui::Point<Pixels>,
12015 block_width: Pixels,
12016 line_height: Pixels,
12017 color: Hsla,
12018 shape: CursorShape,
12019 block_text: Option<ShapedLine>,
12020 cursor_name: Option<AnyElement>,
12021}
12022
12023#[derive(Debug)]
12024pub struct CursorName {
12025 string: SharedString,
12026 color: Hsla,
12027 is_top_row: bool,
12028}
12029
12030impl CursorLayout {
12031 pub fn new(
12032 origin: gpui::Point<Pixels>,
12033 block_width: Pixels,
12034 line_height: Pixels,
12035 color: Hsla,
12036 shape: CursorShape,
12037 block_text: Option<ShapedLine>,
12038 ) -> CursorLayout {
12039 CursorLayout {
12040 origin,
12041 block_width,
12042 line_height,
12043 color,
12044 shape,
12045 block_text,
12046 cursor_name: None,
12047 }
12048 }
12049
12050 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
12051 Bounds {
12052 origin: self.origin + origin,
12053 size: size(self.block_width, self.line_height),
12054 }
12055 }
12056
12057 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
12058 match self.shape {
12059 CursorShape::Bar => Bounds {
12060 origin: self.origin + origin,
12061 size: size(px(2.0), self.line_height),
12062 },
12063 CursorShape::Block | CursorShape::Hollow => Bounds {
12064 origin: self.origin + origin,
12065 size: size(self.block_width, self.line_height),
12066 },
12067 CursorShape::Underline => Bounds {
12068 origin: self.origin
12069 + origin
12070 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
12071 size: size(self.block_width, px(2.0)),
12072 },
12073 }
12074 }
12075
12076 pub fn layout(
12077 &mut self,
12078 origin: gpui::Point<Pixels>,
12079 cursor_name: Option<CursorName>,
12080 window: &mut Window,
12081 cx: &mut App,
12082 ) {
12083 if let Some(cursor_name) = cursor_name {
12084 let bounds = self.bounds(origin);
12085 let text_size = self.line_height / 1.5;
12086
12087 let name_origin = if cursor_name.is_top_row {
12088 point(bounds.right() - px(1.), bounds.top())
12089 } else {
12090 match self.shape {
12091 CursorShape::Bar => point(
12092 bounds.right() - px(2.),
12093 bounds.top() - text_size / 2. - px(1.),
12094 ),
12095 _ => point(
12096 bounds.right() - px(1.),
12097 bounds.top() - text_size / 2. - px(1.),
12098 ),
12099 }
12100 };
12101 let mut name_element = div()
12102 .bg(self.color)
12103 .text_size(text_size)
12104 .px_0p5()
12105 .line_height(text_size + px(2.))
12106 .text_color(cursor_name.color)
12107 .child(cursor_name.string)
12108 .into_any_element();
12109
12110 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
12111
12112 self.cursor_name = Some(name_element);
12113 }
12114 }
12115
12116 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
12117 let bounds = self.bounds(origin);
12118
12119 //Draw background or border quad
12120 let cursor = if matches!(self.shape, CursorShape::Hollow) {
12121 outline(bounds, self.color, BorderStyle::Solid)
12122 } else {
12123 fill(bounds, self.color)
12124 };
12125
12126 if let Some(name) = &mut self.cursor_name {
12127 name.paint(window, cx);
12128 }
12129
12130 window.paint_quad(cursor);
12131
12132 if let Some(block_text) = &self.block_text {
12133 block_text
12134 .paint(
12135 self.origin + origin,
12136 self.line_height,
12137 TextAlign::Left,
12138 None,
12139 window,
12140 cx,
12141 )
12142 .log_err();
12143 }
12144 }
12145
12146 pub fn shape(&self) -> CursorShape {
12147 self.shape
12148 }
12149}
12150
12151#[derive(Debug)]
12152pub struct HighlightedRange {
12153 pub start_y: Pixels,
12154 pub line_height: Pixels,
12155 pub lines: Vec<HighlightedRangeLine>,
12156 pub color: Hsla,
12157 pub corner_radius: Pixels,
12158}
12159
12160#[derive(Debug)]
12161pub struct HighlightedRangeLine {
12162 pub start_x: Pixels,
12163 pub end_x: Pixels,
12164}
12165
12166impl HighlightedRange {
12167 pub fn paint(&self, fill: bool, bounds: Bounds<Pixels>, window: &mut Window) {
12168 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
12169 self.paint_lines(self.start_y, &self.lines[0..1], fill, bounds, window);
12170 self.paint_lines(
12171 self.start_y + self.line_height,
12172 &self.lines[1..],
12173 fill,
12174 bounds,
12175 window,
12176 );
12177 } else {
12178 self.paint_lines(self.start_y, &self.lines, fill, bounds, window);
12179 }
12180 }
12181
12182 fn paint_lines(
12183 &self,
12184 start_y: Pixels,
12185 lines: &[HighlightedRangeLine],
12186 fill: bool,
12187 _bounds: Bounds<Pixels>,
12188 window: &mut Window,
12189 ) {
12190 if lines.is_empty() {
12191 return;
12192 }
12193
12194 let first_line = lines.first().unwrap();
12195 let last_line = lines.last().unwrap();
12196
12197 let first_top_left = point(first_line.start_x, start_y);
12198 let first_top_right = point(first_line.end_x, start_y);
12199
12200 let curve_height = point(Pixels::ZERO, self.corner_radius);
12201 let curve_width = |start_x: Pixels, end_x: Pixels| {
12202 let max = (end_x - start_x) / 2.;
12203 let width = if max < self.corner_radius {
12204 max
12205 } else {
12206 self.corner_radius
12207 };
12208
12209 point(width, Pixels::ZERO)
12210 };
12211
12212 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
12213 let mut builder = if fill {
12214 gpui::PathBuilder::fill()
12215 } else {
12216 gpui::PathBuilder::stroke(px(1.))
12217 };
12218 builder.move_to(first_top_right - top_curve_width);
12219 builder.curve_to(first_top_right + curve_height, first_top_right);
12220
12221 let mut iter = lines.iter().enumerate().peekable();
12222 while let Some((ix, line)) = iter.next() {
12223 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
12224
12225 if let Some((_, next_line)) = iter.peek() {
12226 let next_top_right = point(next_line.end_x, bottom_right.y);
12227
12228 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
12229 Ordering::Equal => {
12230 builder.line_to(bottom_right);
12231 }
12232 Ordering::Less => {
12233 let curve_width = curve_width(next_top_right.x, bottom_right.x);
12234 builder.line_to(bottom_right - curve_height);
12235 if self.corner_radius > Pixels::ZERO {
12236 builder.curve_to(bottom_right - curve_width, bottom_right);
12237 }
12238 builder.line_to(next_top_right + curve_width);
12239 if self.corner_radius > Pixels::ZERO {
12240 builder.curve_to(next_top_right + curve_height, next_top_right);
12241 }
12242 }
12243 Ordering::Greater => {
12244 let curve_width = curve_width(bottom_right.x, next_top_right.x);
12245 builder.line_to(bottom_right - curve_height);
12246 if self.corner_radius > Pixels::ZERO {
12247 builder.curve_to(bottom_right + curve_width, bottom_right);
12248 }
12249 builder.line_to(next_top_right - curve_width);
12250 if self.corner_radius > Pixels::ZERO {
12251 builder.curve_to(next_top_right + curve_height, next_top_right);
12252 }
12253 }
12254 }
12255 } else {
12256 let curve_width = curve_width(line.start_x, line.end_x);
12257 builder.line_to(bottom_right - curve_height);
12258 if self.corner_radius > Pixels::ZERO {
12259 builder.curve_to(bottom_right - curve_width, bottom_right);
12260 }
12261
12262 let bottom_left = point(line.start_x, bottom_right.y);
12263 builder.line_to(bottom_left + curve_width);
12264 if self.corner_radius > Pixels::ZERO {
12265 builder.curve_to(bottom_left - curve_height, bottom_left);
12266 }
12267 }
12268 }
12269
12270 if first_line.start_x > last_line.start_x {
12271 let curve_width = curve_width(last_line.start_x, first_line.start_x);
12272 let second_top_left = point(last_line.start_x, start_y + self.line_height);
12273 builder.line_to(second_top_left + curve_height);
12274 if self.corner_radius > Pixels::ZERO {
12275 builder.curve_to(second_top_left + curve_width, second_top_left);
12276 }
12277 let first_bottom_left = point(first_line.start_x, second_top_left.y);
12278 builder.line_to(first_bottom_left - curve_width);
12279 if self.corner_radius > Pixels::ZERO {
12280 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
12281 }
12282 }
12283
12284 builder.line_to(first_top_left + curve_height);
12285 if self.corner_radius > Pixels::ZERO {
12286 builder.curve_to(first_top_left + top_curve_width, first_top_left);
12287 }
12288 builder.line_to(first_top_right - top_curve_width);
12289
12290 if let Ok(path) = builder.build() {
12291 window.paint_path(path, self.color);
12292 }
12293 }
12294}
12295
12296pub(crate) struct StickyHeader {
12297 pub item: language::OutlineItem<Anchor>,
12298 pub sticky_row: DisplayRow,
12299 pub start_point: Point,
12300 pub offset: ScrollOffset,
12301}
12302
12303enum CursorPopoverType {
12304 CodeContextMenu,
12305 EditPrediction,
12306}
12307
12308pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
12309 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
12310}
12311
12312fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
12313 (delta.pow(1.2) / 300.0).into()
12314}
12315
12316pub fn register_action<T: Action>(
12317 editor: &Entity<Editor>,
12318 window: &mut Window,
12319 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
12320) {
12321 let editor = editor.clone();
12322 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
12323 let action = action.downcast_ref().unwrap();
12324 if phase == DispatchPhase::Bubble {
12325 editor.update(cx, |editor, cx| {
12326 listener(editor, action, window, cx);
12327 })
12328 }
12329 })
12330}
12331
12332/// Shared between `prepaint` and `compute_auto_height_layout` to ensure
12333/// both full and auto-height editors compute wrap widths consistently.
12334fn calculate_wrap_width(
12335 soft_wrap: SoftWrap,
12336 editor_width: Pixels,
12337 em_width: Pixels,
12338) -> Option<Pixels> {
12339 let wrap_width_for = |column: u32| (column as f32 * em_width).ceil();
12340
12341 match soft_wrap {
12342 SoftWrap::GitDiff => None,
12343 SoftWrap::None => Some(wrap_width_for(MAX_LINE_LEN as u32 / 2)),
12344 SoftWrap::EditorWidth => Some(editor_width),
12345 SoftWrap::Column(column) => Some(wrap_width_for(column)),
12346 SoftWrap::Bounded(column) => Some(editor_width.min(wrap_width_for(column))),
12347 }
12348}
12349
12350fn compute_auto_height_layout(
12351 editor: &mut Editor,
12352 min_lines: usize,
12353 max_lines: Option<usize>,
12354 known_dimensions: Size<Option<Pixels>>,
12355 available_width: AvailableSpace,
12356 window: &mut Window,
12357 cx: &mut Context<Editor>,
12358) -> Option<Size<Pixels>> {
12359 let width = known_dimensions.width.or({
12360 if let AvailableSpace::Definite(available_width) = available_width {
12361 Some(available_width)
12362 } else {
12363 None
12364 }
12365 })?;
12366 if let Some(height) = known_dimensions.height {
12367 return Some(size(width, height));
12368 }
12369
12370 let style = editor.style.as_ref().unwrap();
12371 let font_id = window.text_system().resolve_font(&style.text.font());
12372 let font_size = style.text.font_size.to_pixels(window.rem_size());
12373 let line_height = style.text.line_height_in_pixels(window.rem_size());
12374 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
12375
12376 let mut snapshot = editor.snapshot(window, cx);
12377 let gutter_dimensions = snapshot.gutter_dimensions(font_id, font_size, style, window, cx);
12378
12379 editor.gutter_dimensions = gutter_dimensions;
12380 let text_width = width - gutter_dimensions.width;
12381 let overscroll = size(em_width, px(0.));
12382
12383 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
12384 let wrap_width = calculate_wrap_width(editor.soft_wrap_mode(cx), editor_width, em_width);
12385 if wrap_width.is_some() && editor.set_wrap_width(wrap_width, cx) {
12386 snapshot = editor.snapshot(window, cx);
12387 }
12388
12389 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
12390
12391 let min_height = line_height * min_lines as f32;
12392 let content_height = scroll_height.max(min_height);
12393
12394 let final_height = if let Some(max_lines) = max_lines {
12395 let max_height = line_height * max_lines as f32;
12396 content_height.min(max_height)
12397 } else {
12398 content_height
12399 };
12400
12401 Some(size(width, final_height))
12402}
12403
12404#[cfg(test)]
12405mod tests {
12406 use super::*;
12407 use crate::{
12408 Editor, MultiBuffer, SelectionEffects,
12409 display_map::{BlockPlacement, BlockProperties},
12410 editor_tests::{init_test, update_test_language_settings},
12411 };
12412 use gpui::{TestAppContext, VisualTestContext};
12413 use language::{Buffer, language_settings, tree_sitter_python};
12414 use log::info;
12415 use rand::{RngCore, rngs::StdRng};
12416 use std::num::NonZeroU32;
12417 use util::test::sample_text;
12418
12419 #[gpui::test]
12420 async fn test_soft_wrap_editor_width_auto_height_editor(cx: &mut TestAppContext) {
12421 init_test(cx, |_| {});
12422 let window = cx.add_window(|window, cx| {
12423 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
12424 let mut editor = Editor::new(
12425 EditorMode::AutoHeight {
12426 min_lines: 1,
12427 max_lines: None,
12428 },
12429 buffer,
12430 None,
12431 window,
12432 cx,
12433 );
12434 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12435 editor
12436 });
12437 let cx = &mut VisualTestContext::from_window(*window, cx);
12438 let editor = window.root(cx).unwrap();
12439 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12440
12441 for x in 1..=100 {
12442 let (_, state) = cx.draw(
12443 Default::default(),
12444 size(px(200. + 0.13 * x as f32), px(500.)),
12445 |_, _| EditorElement::new(&editor, style.clone()),
12446 );
12447
12448 assert!(
12449 state.position_map.scroll_max.x == 0.,
12450 "Soft wrapped editor should have no horizontal scrolling!"
12451 );
12452 }
12453 }
12454
12455 #[gpui::test]
12456 async fn test_soft_wrap_editor_width_full_editor(cx: &mut TestAppContext) {
12457 init_test(cx, |_| {});
12458 let window = cx.add_window(|window, cx| {
12459 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
12460 let mut editor = Editor::new(EditorMode::full(), buffer, None, window, cx);
12461 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
12462 editor
12463 });
12464 let cx = &mut VisualTestContext::from_window(*window, cx);
12465 let editor = window.root(cx).unwrap();
12466 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12467
12468 for x in 1..=100 {
12469 let (_, state) = cx.draw(
12470 Default::default(),
12471 size(px(200. + 0.13 * x as f32), px(500.)),
12472 |_, _| EditorElement::new(&editor, style.clone()),
12473 );
12474
12475 assert!(
12476 state.position_map.scroll_max.x == 0.,
12477 "Soft wrapped editor should have no horizontal scrolling!"
12478 );
12479 }
12480 }
12481
12482 #[gpui::test]
12483 fn test_layout_line_numbers(cx: &mut TestAppContext) {
12484 init_test(cx, |_| {});
12485 let window = cx.add_window(|window, cx| {
12486 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
12487 Editor::new(EditorMode::full(), buffer, None, window, cx)
12488 });
12489
12490 let editor = window.root(cx).unwrap();
12491 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12492 let line_height = window
12493 .update(cx, |_, window, _| {
12494 style.text.line_height_in_pixels(window.rem_size())
12495 })
12496 .unwrap();
12497 let element = EditorElement::new(&editor, style);
12498 let snapshot = window
12499 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
12500 .unwrap();
12501
12502 let layouts = cx
12503 .update_window(*window, |_, window, cx| {
12504 element.layout_line_numbers(
12505 None,
12506 GutterDimensions {
12507 left_padding: Pixels::ZERO,
12508 right_padding: Pixels::ZERO,
12509 width: px(30.0),
12510 margin: Pixels::ZERO,
12511 git_blame_entries_width: None,
12512 },
12513 line_height,
12514 gpui::Point::default(),
12515 DisplayRow(0)..DisplayRow(6),
12516 &(0..6)
12517 .map(|row| RowInfo {
12518 buffer_row: Some(row),
12519 ..Default::default()
12520 })
12521 .collect::<Vec<_>>(),
12522 &BTreeMap::default(),
12523 Some(DisplayRow(0)),
12524 &snapshot,
12525 window,
12526 cx,
12527 )
12528 })
12529 .unwrap();
12530 assert_eq!(layouts.len(), 6);
12531
12532 let relative_rows = window
12533 .update(cx, |editor, window, cx| {
12534 let snapshot = editor.snapshot(window, cx);
12535 snapshot.calculate_relative_line_numbers(
12536 &(DisplayRow(0)..DisplayRow(6)),
12537 DisplayRow(3),
12538 false,
12539 )
12540 })
12541 .unwrap();
12542 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12543 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12544 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12545 // current line has no relative number
12546 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12547 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12548 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12549
12550 // works if cursor is before screen
12551 let relative_rows = window
12552 .update(cx, |editor, window, cx| {
12553 let snapshot = editor.snapshot(window, cx);
12554 snapshot.calculate_relative_line_numbers(
12555 &(DisplayRow(3)..DisplayRow(6)),
12556 DisplayRow(1),
12557 false,
12558 )
12559 })
12560 .unwrap();
12561 assert_eq!(relative_rows.len(), 3);
12562 assert_eq!(relative_rows[&DisplayRow(3)], 2);
12563 assert_eq!(relative_rows[&DisplayRow(4)], 3);
12564 assert_eq!(relative_rows[&DisplayRow(5)], 4);
12565
12566 // works if cursor is after screen
12567 let relative_rows = window
12568 .update(cx, |editor, window, cx| {
12569 let snapshot = editor.snapshot(window, cx);
12570 snapshot.calculate_relative_line_numbers(
12571 &(DisplayRow(0)..DisplayRow(3)),
12572 DisplayRow(6),
12573 false,
12574 )
12575 })
12576 .unwrap();
12577 assert_eq!(relative_rows.len(), 3);
12578 assert_eq!(relative_rows[&DisplayRow(0)], 5);
12579 assert_eq!(relative_rows[&DisplayRow(1)], 4);
12580 assert_eq!(relative_rows[&DisplayRow(2)], 3);
12581
12582 const DELETED_LINE: u32 = 3;
12583 let layouts = cx
12584 .update_window(*window, |_, window, cx| {
12585 element.layout_line_numbers(
12586 None,
12587 GutterDimensions {
12588 left_padding: Pixels::ZERO,
12589 right_padding: Pixels::ZERO,
12590 width: px(30.0),
12591 margin: Pixels::ZERO,
12592 git_blame_entries_width: None,
12593 },
12594 line_height,
12595 gpui::Point::default(),
12596 DisplayRow(0)..DisplayRow(6),
12597 &(0..6)
12598 .map(|row| RowInfo {
12599 buffer_row: Some(row),
12600 diff_status: (row == DELETED_LINE).then(|| {
12601 DiffHunkStatus::deleted(
12602 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
12603 )
12604 }),
12605 ..Default::default()
12606 })
12607 .collect::<Vec<_>>(),
12608 &BTreeMap::default(),
12609 Some(DisplayRow(0)),
12610 &snapshot,
12611 window,
12612 cx,
12613 )
12614 })
12615 .unwrap();
12616 assert_eq!(layouts.len(), 5,);
12617 assert!(
12618 layouts.get(&MultiBufferRow(DELETED_LINE)).is_none(),
12619 "Deleted line should not have a line number"
12620 );
12621 }
12622
12623 #[gpui::test]
12624 async fn test_layout_line_numbers_with_folded_lines(cx: &mut TestAppContext) {
12625 init_test(cx, |_| {});
12626
12627 let python_lang = languages::language("python", tree_sitter_python::LANGUAGE.into());
12628
12629 let window = cx.add_window(|window, cx| {
12630 let buffer = cx.new(|cx| {
12631 Buffer::local(
12632 indoc::indoc! {"
12633 fn test() -> int {
12634 return 2;
12635 }
12636
12637 fn another_test() -> int {
12638 # This is a very peculiar method that is hard to grasp.
12639 return 4;
12640 }
12641 "},
12642 cx,
12643 )
12644 .with_language(python_lang, cx)
12645 });
12646
12647 let buffer = MultiBuffer::build_from_buffer(buffer, cx);
12648 Editor::new(EditorMode::full(), buffer, None, window, cx)
12649 });
12650
12651 let editor = window.root(cx).unwrap();
12652 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12653 let line_height = window
12654 .update(cx, |_, window, _| {
12655 style.text.line_height_in_pixels(window.rem_size())
12656 })
12657 .unwrap();
12658 let element = EditorElement::new(&editor, style);
12659 let snapshot = window
12660 .update(cx, |editor, window, cx| {
12661 editor.fold_at(MultiBufferRow(0), window, cx);
12662 editor.snapshot(window, cx)
12663 })
12664 .unwrap();
12665
12666 let layouts = cx
12667 .update_window(*window, |_, window, cx| {
12668 element.layout_line_numbers(
12669 None,
12670 GutterDimensions {
12671 left_padding: Pixels::ZERO,
12672 right_padding: Pixels::ZERO,
12673 width: px(30.0),
12674 margin: Pixels::ZERO,
12675 git_blame_entries_width: None,
12676 },
12677 line_height,
12678 gpui::Point::default(),
12679 DisplayRow(0)..DisplayRow(6),
12680 &(0..6)
12681 .map(|row| RowInfo {
12682 buffer_row: Some(row),
12683 ..Default::default()
12684 })
12685 .collect::<Vec<_>>(),
12686 &BTreeMap::default(),
12687 Some(DisplayRow(3)),
12688 &snapshot,
12689 window,
12690 cx,
12691 )
12692 })
12693 .unwrap();
12694 assert_eq!(layouts.len(), 6);
12695
12696 let relative_rows = window
12697 .update(cx, |editor, window, cx| {
12698 let snapshot = editor.snapshot(window, cx);
12699 snapshot.calculate_relative_line_numbers(
12700 &(DisplayRow(0)..DisplayRow(6)),
12701 DisplayRow(3),
12702 false,
12703 )
12704 })
12705 .unwrap();
12706 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12707 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12708 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12709 // current line has no relative number
12710 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12711 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12712 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12713 }
12714
12715 #[gpui::test]
12716 fn test_layout_line_numbers_wrapping(cx: &mut TestAppContext) {
12717 init_test(cx, |_| {});
12718 let window = cx.add_window(|window, cx| {
12719 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
12720 Editor::new(EditorMode::full(), buffer, None, window, cx)
12721 });
12722
12723 update_test_language_settings(cx, &|s| {
12724 s.defaults.preferred_line_length = Some(5_u32);
12725 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
12726 });
12727
12728 let editor = window.root(cx).unwrap();
12729 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
12730 let line_height = window
12731 .update(cx, |_, window, _| {
12732 style.text.line_height_in_pixels(window.rem_size())
12733 })
12734 .unwrap();
12735 let element = EditorElement::new(&editor, style);
12736 let snapshot = window
12737 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
12738 .unwrap();
12739
12740 let layouts = cx
12741 .update_window(*window, |_, window, cx| {
12742 element.layout_line_numbers(
12743 None,
12744 GutterDimensions {
12745 left_padding: Pixels::ZERO,
12746 right_padding: Pixels::ZERO,
12747 width: px(30.0),
12748 margin: Pixels::ZERO,
12749 git_blame_entries_width: None,
12750 },
12751 line_height,
12752 gpui::Point::default(),
12753 DisplayRow(0)..DisplayRow(6),
12754 &(0..6)
12755 .map(|row| RowInfo {
12756 buffer_row: Some(row),
12757 ..Default::default()
12758 })
12759 .collect::<Vec<_>>(),
12760 &BTreeMap::default(),
12761 Some(DisplayRow(0)),
12762 &snapshot,
12763 window,
12764 cx,
12765 )
12766 })
12767 .unwrap();
12768 assert_eq!(layouts.len(), 3);
12769
12770 let relative_rows = window
12771 .update(cx, |editor, window, cx| {
12772 let snapshot = editor.snapshot(window, cx);
12773 snapshot.calculate_relative_line_numbers(
12774 &(DisplayRow(0)..DisplayRow(6)),
12775 DisplayRow(3),
12776 true,
12777 )
12778 })
12779 .unwrap();
12780
12781 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12782 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12783 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12784 // current line has no relative number
12785 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12786 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12787 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12788
12789 let layouts = cx
12790 .update_window(*window, |_, window, cx| {
12791 element.layout_line_numbers(
12792 None,
12793 GutterDimensions {
12794 left_padding: Pixels::ZERO,
12795 right_padding: Pixels::ZERO,
12796 width: px(30.0),
12797 margin: Pixels::ZERO,
12798 git_blame_entries_width: None,
12799 },
12800 line_height,
12801 gpui::Point::default(),
12802 DisplayRow(0)..DisplayRow(6),
12803 &(0..6)
12804 .map(|row| RowInfo {
12805 buffer_row: Some(row),
12806 diff_status: Some(DiffHunkStatus::deleted(
12807 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
12808 )),
12809 ..Default::default()
12810 })
12811 .collect::<Vec<_>>(),
12812 &BTreeMap::from_iter([(DisplayRow(0), LineHighlightSpec::default())]),
12813 Some(DisplayRow(0)),
12814 &snapshot,
12815 window,
12816 cx,
12817 )
12818 })
12819 .unwrap();
12820 assert!(
12821 layouts.is_empty(),
12822 "Deleted lines should have no line number"
12823 );
12824
12825 let relative_rows = window
12826 .update(cx, |editor, window, cx| {
12827 let snapshot = editor.snapshot(window, cx);
12828 snapshot.calculate_relative_line_numbers(
12829 &(DisplayRow(0)..DisplayRow(6)),
12830 DisplayRow(3),
12831 true,
12832 )
12833 })
12834 .unwrap();
12835
12836 // Deleted lines should still have relative numbers
12837 assert_eq!(relative_rows[&DisplayRow(0)], 3);
12838 assert_eq!(relative_rows[&DisplayRow(1)], 2);
12839 assert_eq!(relative_rows[&DisplayRow(2)], 1);
12840 // current line, even if deleted, has no relative number
12841 assert!(!relative_rows.contains_key(&DisplayRow(3)));
12842 assert_eq!(relative_rows[&DisplayRow(4)], 1);
12843 assert_eq!(relative_rows[&DisplayRow(5)], 2);
12844 }
12845
12846 #[gpui::test]
12847 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
12848 init_test(cx, |_| {});
12849
12850 let window = cx.add_window(|window, cx| {
12851 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
12852 Editor::new(EditorMode::full(), buffer, None, window, cx)
12853 });
12854 let cx = &mut VisualTestContext::from_window(*window, cx);
12855 let editor = window.root(cx).unwrap();
12856 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12857
12858 window
12859 .update(cx, |editor, window, cx| {
12860 editor.cursor_offset_on_selection = true;
12861 editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
12862 s.select_ranges([
12863 Point::new(0, 0)..Point::new(1, 0),
12864 Point::new(3, 2)..Point::new(3, 3),
12865 Point::new(5, 6)..Point::new(6, 0),
12866 ]);
12867 });
12868 })
12869 .unwrap();
12870
12871 let (_, state) = cx.draw(
12872 point(px(500.), px(500.)),
12873 size(px(500.), px(500.)),
12874 |_, _| EditorElement::new(&editor, style),
12875 );
12876
12877 assert_eq!(state.selections.len(), 1);
12878 let local_selections = &state.selections[0].1;
12879 assert_eq!(local_selections.len(), 3);
12880 // moves cursor back one line
12881 assert_eq!(
12882 local_selections[0].head,
12883 DisplayPoint::new(DisplayRow(0), 6)
12884 );
12885 assert_eq!(
12886 local_selections[0].range,
12887 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
12888 );
12889
12890 // moves cursor back one column
12891 assert_eq!(
12892 local_selections[1].range,
12893 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
12894 );
12895 assert_eq!(
12896 local_selections[1].head,
12897 DisplayPoint::new(DisplayRow(3), 2)
12898 );
12899
12900 // leaves cursor on the max point
12901 assert_eq!(
12902 local_selections[2].range,
12903 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
12904 );
12905 assert_eq!(
12906 local_selections[2].head,
12907 DisplayPoint::new(DisplayRow(6), 0)
12908 );
12909
12910 // active lines does not include 1 (even though the range of the selection does)
12911 assert_eq!(
12912 state.active_rows.keys().cloned().collect::<Vec<_>>(),
12913 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
12914 );
12915 }
12916
12917 #[gpui::test]
12918 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
12919 init_test(cx, |_| {});
12920
12921 let window = cx.add_window(|window, cx| {
12922 let buffer = MultiBuffer::build_simple("", cx);
12923 Editor::new(EditorMode::full(), buffer, None, window, cx)
12924 });
12925 let cx = &mut VisualTestContext::from_window(*window, cx);
12926 let editor = window.root(cx).unwrap();
12927 let style = cx.update(|_, cx| editor.update(cx, |editor, cx| editor.style(cx).clone()));
12928 window
12929 .update(cx, |editor, window, cx| {
12930 editor.set_placeholder_text("hello", window, cx);
12931 editor.insert_blocks(
12932 [BlockProperties {
12933 style: BlockStyle::Fixed,
12934 placement: BlockPlacement::Above(Anchor::min()),
12935 height: Some(3),
12936 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
12937 priority: 0,
12938 }],
12939 None,
12940 cx,
12941 );
12942
12943 // Blur the editor so that it displays placeholder text.
12944 window.blur();
12945 })
12946 .unwrap();
12947
12948 let (_, state) = cx.draw(
12949 point(px(500.), px(500.)),
12950 size(px(500.), px(500.)),
12951 |_, _| EditorElement::new(&editor, style),
12952 );
12953 assert_eq!(state.position_map.line_layouts.len(), 4);
12954 assert_eq!(state.line_numbers.len(), 1);
12955 assert_eq!(
12956 state
12957 .line_numbers
12958 .get(&MultiBufferRow(0))
12959 .map(|line_number| line_number
12960 .segments
12961 .first()
12962 .unwrap()
12963 .shaped_line
12964 .text
12965 .as_ref()),
12966 Some("1")
12967 );
12968 }
12969
12970 #[gpui::test]
12971 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
12972 const TAB_SIZE: u32 = 4;
12973
12974 let input_text = "\t \t|\t| a b";
12975 let expected_invisibles = vec![
12976 Invisible::Tab {
12977 line_start_offset: 0,
12978 line_end_offset: TAB_SIZE as usize,
12979 },
12980 Invisible::Whitespace {
12981 line_offset: TAB_SIZE as usize,
12982 },
12983 Invisible::Tab {
12984 line_start_offset: TAB_SIZE as usize + 1,
12985 line_end_offset: TAB_SIZE as usize * 2,
12986 },
12987 Invisible::Tab {
12988 line_start_offset: TAB_SIZE as usize * 2 + 1,
12989 line_end_offset: TAB_SIZE as usize * 3,
12990 },
12991 Invisible::Whitespace {
12992 line_offset: TAB_SIZE as usize * 3 + 1,
12993 },
12994 Invisible::Whitespace {
12995 line_offset: TAB_SIZE as usize * 3 + 3,
12996 },
12997 ];
12998 assert_eq!(
12999 expected_invisibles.len(),
13000 input_text
13001 .chars()
13002 .filter(|initial_char| initial_char.is_whitespace())
13003 .count(),
13004 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
13005 );
13006
13007 for show_line_numbers in [true, false] {
13008 init_test(cx, |s| {
13009 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
13010 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
13011 });
13012
13013 let actual_invisibles = collect_invisibles_from_new_editor(
13014 cx,
13015 EditorMode::full(),
13016 input_text,
13017 px(500.0),
13018 show_line_numbers,
13019 );
13020
13021 assert_eq!(expected_invisibles, actual_invisibles);
13022 }
13023 }
13024
13025 #[gpui::test]
13026 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
13027 init_test(cx, |s| {
13028 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
13029 s.defaults.tab_size = NonZeroU32::new(4);
13030 });
13031
13032 for editor_mode_without_invisibles in [
13033 EditorMode::SingleLine,
13034 EditorMode::AutoHeight {
13035 min_lines: 1,
13036 max_lines: Some(100),
13037 },
13038 ] {
13039 for show_line_numbers in [true, false] {
13040 let invisibles = collect_invisibles_from_new_editor(
13041 cx,
13042 editor_mode_without_invisibles.clone(),
13043 "\t\t\t| | a b",
13044 px(500.0),
13045 show_line_numbers,
13046 );
13047 assert!(
13048 invisibles.is_empty(),
13049 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
13050 );
13051 }
13052 }
13053 }
13054
13055 #[gpui::test]
13056 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
13057 let tab_size = 4;
13058 let input_text = "a\tbcd ".repeat(9);
13059 let repeated_invisibles = [
13060 Invisible::Tab {
13061 line_start_offset: 1,
13062 line_end_offset: tab_size as usize,
13063 },
13064 Invisible::Whitespace {
13065 line_offset: tab_size as usize + 3,
13066 },
13067 Invisible::Whitespace {
13068 line_offset: tab_size as usize + 4,
13069 },
13070 Invisible::Whitespace {
13071 line_offset: tab_size as usize + 5,
13072 },
13073 Invisible::Whitespace {
13074 line_offset: tab_size as usize + 6,
13075 },
13076 Invisible::Whitespace {
13077 line_offset: tab_size as usize + 7,
13078 },
13079 ];
13080 let expected_invisibles = std::iter::once(repeated_invisibles)
13081 .cycle()
13082 .take(9)
13083 .flatten()
13084 .collect::<Vec<_>>();
13085 assert_eq!(
13086 expected_invisibles.len(),
13087 input_text
13088 .chars()
13089 .filter(|initial_char| initial_char.is_whitespace())
13090 .count(),
13091 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
13092 );
13093 info!("Expected invisibles: {expected_invisibles:?}");
13094
13095 init_test(cx, |_| {});
13096
13097 // Put the same string with repeating whitespace pattern into editors of various size,
13098 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
13099 let resize_step = 10.0;
13100 let mut editor_width = 200.0;
13101 while editor_width <= 1000.0 {
13102 for show_line_numbers in [true, false] {
13103 update_test_language_settings(cx, &|s| {
13104 s.defaults.tab_size = NonZeroU32::new(tab_size);
13105 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
13106 s.defaults.preferred_line_length = Some(editor_width as u32);
13107 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
13108 });
13109
13110 let actual_invisibles = collect_invisibles_from_new_editor(
13111 cx,
13112 EditorMode::full(),
13113 &input_text,
13114 px(editor_width),
13115 show_line_numbers,
13116 );
13117
13118 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
13119 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
13120 let mut i = 0;
13121 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
13122 i = actual_index;
13123 match expected_invisibles.get(i) {
13124 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
13125 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
13126 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
13127 _ => {
13128 panic!(
13129 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
13130 )
13131 }
13132 },
13133 None => {
13134 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
13135 }
13136 }
13137 }
13138 let missing_expected_invisibles = &expected_invisibles[i + 1..];
13139 assert!(
13140 missing_expected_invisibles.is_empty(),
13141 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
13142 );
13143
13144 editor_width += resize_step;
13145 }
13146 }
13147 }
13148
13149 fn collect_invisibles_from_new_editor(
13150 cx: &mut TestAppContext,
13151 editor_mode: EditorMode,
13152 input_text: &str,
13153 editor_width: Pixels,
13154 show_line_numbers: bool,
13155 ) -> Vec<Invisible> {
13156 info!(
13157 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
13158 f32::from(editor_width)
13159 );
13160 let window = cx.add_window(|window, cx| {
13161 let buffer = MultiBuffer::build_simple(input_text, cx);
13162 Editor::new(editor_mode, buffer, None, window, cx)
13163 });
13164 let cx = &mut VisualTestContext::from_window(*window, cx);
13165 let editor = window.root(cx).unwrap();
13166
13167 let style = editor.update(cx, |editor, cx| editor.style(cx).clone());
13168 window
13169 .update(cx, |editor, _, cx| {
13170 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
13171 editor.set_wrap_width(Some(editor_width), cx);
13172 editor.set_show_line_numbers(show_line_numbers, cx);
13173 })
13174 .unwrap();
13175 let (_, state) = cx.draw(
13176 point(px(500.), px(500.)),
13177 size(px(500.), px(500.)),
13178 |_, _| EditorElement::new(&editor, style),
13179 );
13180 state
13181 .position_map
13182 .line_layouts
13183 .iter()
13184 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
13185 .cloned()
13186 .collect()
13187 }
13188
13189 #[gpui::test]
13190 fn test_merge_overlapping_ranges() {
13191 let base_bg = Hsla::white();
13192 let color1 = Hsla {
13193 h: 0.0,
13194 s: 0.5,
13195 l: 0.5,
13196 a: 0.5,
13197 };
13198 let color2 = Hsla {
13199 h: 120.0,
13200 s: 0.5,
13201 l: 0.5,
13202 a: 0.5,
13203 };
13204
13205 let display_point = |col| DisplayPoint::new(DisplayRow(0), col);
13206 let cols = |v: &Vec<(Range<DisplayPoint>, Hsla)>| -> Vec<(u32, u32)> {
13207 v.iter()
13208 .map(|(r, _)| (r.start.column(), r.end.column()))
13209 .collect()
13210 };
13211
13212 // Test overlapping ranges blend colors
13213 let overlapping = vec![
13214 (display_point(5)..display_point(15), color1),
13215 (display_point(10)..display_point(20), color2),
13216 ];
13217 let result = EditorElement::merge_overlapping_ranges(overlapping, base_bg);
13218 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
13219
13220 // Test middle segment should have blended color
13221 let blended = Hsla::blend(Hsla::blend(base_bg, color1), color2);
13222 assert_eq!(result[1].1, blended);
13223
13224 // Test adjacent same-color ranges merge
13225 let adjacent_same = vec![
13226 (display_point(5)..display_point(10), color1),
13227 (display_point(10)..display_point(15), color1),
13228 ];
13229 let result = EditorElement::merge_overlapping_ranges(adjacent_same, base_bg);
13230 assert_eq!(cols(&result), vec![(5, 15)]);
13231
13232 // Test contained range splits
13233 let contained = vec![
13234 (display_point(5)..display_point(20), color1),
13235 (display_point(10)..display_point(15), color2),
13236 ];
13237 let result = EditorElement::merge_overlapping_ranges(contained, base_bg);
13238 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
13239
13240 // Test multiple overlaps split at every boundary
13241 let color3 = Hsla {
13242 h: 240.0,
13243 s: 0.5,
13244 l: 0.5,
13245 a: 0.5,
13246 };
13247 let complex = vec![
13248 (display_point(5)..display_point(12), color1),
13249 (display_point(8)..display_point(16), color2),
13250 (display_point(10)..display_point(14), color3),
13251 ];
13252 let result = EditorElement::merge_overlapping_ranges(complex, base_bg);
13253 assert_eq!(
13254 cols(&result),
13255 vec![(5, 8), (8, 10), (10, 12), (12, 14), (14, 16)]
13256 );
13257 }
13258
13259 #[gpui::test]
13260 fn test_bg_segments_per_row() {
13261 let base_bg = Hsla::white();
13262
13263 // Case A: selection spans three display rows: row 1 [5, end), full row 2, row 3 [0, 7)
13264 {
13265 let selection_color = Hsla {
13266 h: 200.0,
13267 s: 0.5,
13268 l: 0.5,
13269 a: 0.5,
13270 };
13271 let player_color = PlayerColor {
13272 cursor: selection_color,
13273 background: selection_color,
13274 selection: selection_color,
13275 };
13276
13277 let spanning_selection = SelectionLayout {
13278 head: DisplayPoint::new(DisplayRow(3), 7),
13279 cursor_shape: CursorShape::Bar,
13280 is_newest: true,
13281 is_local: true,
13282 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 7),
13283 active_rows: DisplayRow(1)..DisplayRow(4),
13284 user_name: None,
13285 };
13286
13287 let selections = vec![(player_color, vec![spanning_selection])];
13288 let result = EditorElement::bg_segments_per_row(
13289 DisplayRow(0)..DisplayRow(5),
13290 &selections,
13291 &[],
13292 base_bg,
13293 );
13294
13295 assert_eq!(result.len(), 5);
13296 assert!(result[0].is_empty());
13297 assert_eq!(result[1].len(), 1);
13298 assert_eq!(result[2].len(), 1);
13299 assert_eq!(result[3].len(), 1);
13300 assert!(result[4].is_empty());
13301
13302 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
13303 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
13304 assert_eq!(result[1][0].0.end.column(), u32::MAX);
13305 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
13306 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
13307 assert_eq!(result[2][0].0.end.column(), u32::MAX);
13308 assert_eq!(result[3][0].0.start, DisplayPoint::new(DisplayRow(3), 0));
13309 assert_eq!(result[3][0].0.end, DisplayPoint::new(DisplayRow(3), 7));
13310 }
13311
13312 // Case B: selection ends exactly at the start of row 3, excluding row 3
13313 {
13314 let selection_color = Hsla {
13315 h: 120.0,
13316 s: 0.5,
13317 l: 0.5,
13318 a: 0.5,
13319 };
13320 let player_color = PlayerColor {
13321 cursor: selection_color,
13322 background: selection_color,
13323 selection: selection_color,
13324 };
13325
13326 let selection = SelectionLayout {
13327 head: DisplayPoint::new(DisplayRow(2), 0),
13328 cursor_shape: CursorShape::Bar,
13329 is_newest: true,
13330 is_local: true,
13331 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 0),
13332 active_rows: DisplayRow(1)..DisplayRow(3),
13333 user_name: None,
13334 };
13335
13336 let selections = vec![(player_color, vec![selection])];
13337 let result = EditorElement::bg_segments_per_row(
13338 DisplayRow(0)..DisplayRow(4),
13339 &selections,
13340 &[],
13341 base_bg,
13342 );
13343
13344 assert_eq!(result.len(), 4);
13345 assert!(result[0].is_empty());
13346 assert_eq!(result[1].len(), 1);
13347 assert_eq!(result[2].len(), 1);
13348 assert!(result[3].is_empty());
13349
13350 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
13351 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
13352 assert_eq!(result[1][0].0.end.column(), u32::MAX);
13353 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
13354 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
13355 assert_eq!(result[2][0].0.end.column(), u32::MAX);
13356 }
13357 }
13358
13359 #[cfg(test)]
13360 fn generate_test_run(len: usize, color: Hsla) -> TextRun {
13361 TextRun {
13362 len,
13363 color,
13364 ..Default::default()
13365 }
13366 }
13367
13368 #[gpui::test]
13369 fn test_split_runs_by_bg_segments(cx: &mut gpui::TestAppContext) {
13370 init_test(cx, |_| {});
13371
13372 let dx = |start: u32, end: u32| {
13373 DisplayPoint::new(DisplayRow(0), start)..DisplayPoint::new(DisplayRow(0), end)
13374 };
13375
13376 let text_color = Hsla {
13377 h: 210.0,
13378 s: 0.1,
13379 l: 0.4,
13380 a: 1.0,
13381 };
13382 let bg_1 = Hsla {
13383 h: 30.0,
13384 s: 0.6,
13385 l: 0.8,
13386 a: 1.0,
13387 };
13388 let bg_2 = Hsla {
13389 h: 200.0,
13390 s: 0.6,
13391 l: 0.2,
13392 a: 1.0,
13393 };
13394 let min_contrast = 45.0;
13395 let adjusted_bg1 = ensure_minimum_contrast(text_color, bg_1, min_contrast);
13396 let adjusted_bg2 = ensure_minimum_contrast(text_color, bg_2, min_contrast);
13397
13398 // Case A: single run; disjoint segments inside the run
13399 {
13400 let runs = vec![generate_test_run(20, text_color)];
13401 let segs = vec![(dx(5, 10), bg_1), (dx(12, 16), bg_2)];
13402 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13403 // Expected slices: [0,5) [5,10) [10,12) [12,16) [16,20)
13404 assert_eq!(
13405 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13406 vec![5, 5, 2, 4, 4]
13407 );
13408 assert_eq!(out[0].color, text_color);
13409 assert_eq!(out[1].color, adjusted_bg1);
13410 assert_eq!(out[2].color, text_color);
13411 assert_eq!(out[3].color, adjusted_bg2);
13412 assert_eq!(out[4].color, text_color);
13413 }
13414
13415 // Case B: multiple runs; segment extends to end of line (u32::MAX)
13416 {
13417 let runs = vec![
13418 generate_test_run(8, text_color),
13419 generate_test_run(7, text_color),
13420 ];
13421 let segs = vec![(dx(6, u32::MAX), bg_1)];
13422 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13423 // Expected slices across runs: [0,6) [6,8) | [0,7)
13424 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![6, 2, 7]);
13425 assert_eq!(out[0].color, text_color);
13426 assert_eq!(out[1].color, adjusted_bg1);
13427 assert_eq!(out[2].color, adjusted_bg1);
13428 }
13429
13430 // Case C: multi-byte characters
13431 {
13432 // for text: "Hello π δΈη!"
13433 let runs = vec![
13434 generate_test_run(5, text_color), // "Hello"
13435 generate_test_run(6, text_color), // " π "
13436 generate_test_run(6, text_color), // "δΈη"
13437 generate_test_run(1, text_color), // "!"
13438 ];
13439 // selecting "π δΈ"
13440 let segs = vec![(dx(6, 14), bg_1)];
13441 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13442 // "Hello" | " " | "π " | "δΈ" | "η" | "!"
13443 assert_eq!(
13444 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13445 vec![5, 1, 5, 3, 3, 1]
13446 );
13447 assert_eq!(out[0].color, text_color); // "Hello"
13448 assert_eq!(out[2].color, adjusted_bg1); // "π "
13449 assert_eq!(out[3].color, adjusted_bg1); // "δΈ"
13450 assert_eq!(out[4].color, text_color); // "η"
13451 assert_eq!(out[5].color, text_color); // "!"
13452 }
13453
13454 // Case D: split multiple consecutive text runs with segments
13455 {
13456 let segs = vec![
13457 (dx(2, 4), bg_1), // selecting "cd"
13458 (dx(4, 8), bg_2), // selecting "efgh"
13459 (dx(9, 11), bg_1), // selecting "jk"
13460 (dx(12, 16), bg_2), // selecting "mnop"
13461 (dx(18, 19), bg_1), // selecting "s"
13462 ];
13463
13464 // for text: "abcdef"
13465 let runs = vec![
13466 generate_test_run(2, text_color), // ab
13467 generate_test_run(4, text_color), // cdef
13468 ];
13469 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
13470 // new splits "ab", "cd", "ef"
13471 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![2, 2, 2]);
13472 assert_eq!(out[0].color, text_color);
13473 assert_eq!(out[1].color, adjusted_bg1);
13474 assert_eq!(out[2].color, adjusted_bg2);
13475
13476 // for text: "ghijklmn"
13477 let runs = vec![
13478 generate_test_run(3, text_color), // ghi
13479 generate_test_run(2, text_color), // jk
13480 generate_test_run(3, text_color), // lmn
13481 ];
13482 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 6); // 2 + 4 from first run
13483 // new splits "gh", "i", "jk", "l", "mn"
13484 assert_eq!(
13485 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13486 vec![2, 1, 2, 1, 2]
13487 );
13488 assert_eq!(out[0].color, adjusted_bg2);
13489 assert_eq!(out[1].color, text_color);
13490 assert_eq!(out[2].color, adjusted_bg1);
13491 assert_eq!(out[3].color, text_color);
13492 assert_eq!(out[4].color, adjusted_bg2);
13493
13494 // for text: "opqrs"
13495 let runs = vec![
13496 generate_test_run(1, text_color), // o
13497 generate_test_run(4, text_color), // pqrs
13498 ];
13499 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 14); // 6 + 3 + 2 + 3 from first two runs
13500 // new splits "o", "p", "qr", "s"
13501 assert_eq!(
13502 out.iter().map(|r| r.len).collect::<Vec<_>>(),
13503 vec![1, 1, 2, 1]
13504 );
13505 assert_eq!(out[0].color, adjusted_bg2);
13506 assert_eq!(out[1].color, adjusted_bg2);
13507 assert_eq!(out[2].color, text_color);
13508 assert_eq!(out[3].color, adjusted_bg1);
13509 }
13510 }
13511
13512 #[test]
13513 fn test_spacer_pattern_period() {
13514 // line height is smaller than target height, so we just return half the line height
13515 assert_eq!(EditorElement::spacer_pattern_period(10.0, 20.0), 5.0);
13516
13517 // line height is exactly half the target height, perfect match
13518 assert_eq!(EditorElement::spacer_pattern_period(20.0, 10.0), 10.0);
13519
13520 // line height is close to half the target height
13521 assert_eq!(EditorElement::spacer_pattern_period(20.0, 9.0), 10.0);
13522
13523 // line height is close to 1/4 the target height
13524 assert_eq!(EditorElement::spacer_pattern_period(20.0, 4.8), 5.0);
13525 }
13526
13527 #[gpui::test(iterations = 100)]
13528 fn test_random_spacer_pattern_period(mut rng: StdRng) {
13529 let line_height = rng.next_u32() as f32;
13530 let target_height = rng.next_u32() as f32;
13531
13532 let result = EditorElement::spacer_pattern_period(line_height, target_height);
13533
13534 let k = line_height / result;
13535 assert!(k - k.round() < 0.0000001); // approximately integer
13536 assert!((k.round() as u32).is_multiple_of(2));
13537 }
13538
13539 #[test]
13540 fn test_calculate_wrap_width() {
13541 let editor_width = px(800.0);
13542 let em_width = px(8.0);
13543
13544 assert_eq!(
13545 calculate_wrap_width(SoftWrap::GitDiff, editor_width, em_width),
13546 None,
13547 );
13548
13549 assert_eq!(
13550 calculate_wrap_width(SoftWrap::None, editor_width, em_width),
13551 Some(px((MAX_LINE_LEN as f32 / 2.0 * 8.0).ceil())),
13552 );
13553
13554 assert_eq!(
13555 calculate_wrap_width(SoftWrap::EditorWidth, editor_width, em_width),
13556 Some(px(800.0)),
13557 );
13558
13559 assert_eq!(
13560 calculate_wrap_width(SoftWrap::Column(72), editor_width, em_width),
13561 Some(px((72.0 * 8.0_f32).ceil())),
13562 );
13563
13564 assert_eq!(
13565 calculate_wrap_width(SoftWrap::Bounded(72), editor_width, em_width),
13566 Some(px((72.0 * 8.0_f32).ceil())),
13567 );
13568 assert_eq!(
13569 calculate_wrap_width(SoftWrap::Bounded(200), px(400.0), em_width),
13570 Some(px(400.0)),
13571 );
13572 }
13573}