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