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 display_map::{
15 Block, BlockContext, BlockStyle, ChunkRendererId, DisplaySnapshot, EditorMargins,
16 HighlightKey, HighlightedChunk, ToDisplayPoint,
17 },
18 editor_settings::{
19 CurrentLineHighlight, DocumentColorsRenderMode, DoubleClickInMultibuffer, Minimap,
20 MinimapThumb, MinimapThumbBorder, ScrollBeyondLastLine, ScrollbarAxes,
21 ScrollbarDiagnostics, ShowMinimap,
22 },
23 git::blame::{BlameRenderer, GitBlame, GlobalBlameRenderer},
24 hover_popover::{
25 self, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
26 POPOVER_RIGHT_OFFSET, hover_at,
27 },
28 inlay_hint_settings,
29 items::BufferSearchHighlights,
30 mouse_context_menu::{self, MenuPosition},
31 scroll::{
32 ActiveScrollbarState, Autoscroll, ScrollOffset, ScrollPixelOffset, ScrollbarThumbState,
33 scroll_amount::ScrollAmount,
34 },
35};
36use buffer_diff::{DiffHunkStatus, DiffHunkStatusKind};
37use collections::{BTreeMap, HashMap};
38use file_icons::FileIcons;
39use git::{
40 Oid,
41 blame::{BlameEntry, ParsedCommitMessage},
42 status::FileStatus,
43};
44use gpui::{
45 Action, Along, AnyElement, App, AppContext, AvailableSpace, Axis as ScrollbarAxis, BorderStyle,
46 Bounds, ClickEvent, ClipboardItem, ContentMask, Context, Corner, Corners, CursorStyle,
47 DispatchPhase, Edges, Element, ElementInputHandler, Entity, Focusable as _, FontId,
48 GlobalElementId, Hitbox, HitboxBehavior, Hsla, InteractiveElement, IntoElement, IsZero,
49 KeybindingKeystroke, Length, Modifiers, ModifiersChangedEvent, MouseButton, MouseClickEvent,
50 MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad, ParentElement, Pixels, ScrollDelta,
51 ScrollHandle, ScrollWheelEvent, ShapedLine, SharedString, Size, StatefulInteractiveElement,
52 Style, Styled, TextRun, TextStyleRefinement, WeakEntity, Window, anchored, deferred, div, fill,
53 linear_color_stop, linear_gradient, outline, point, px, quad, relative, size, solid_background,
54 transparent_black,
55};
56use itertools::Itertools;
57use language::{IndentGuideSettings, language_settings::ShowWhitespaceSetting};
58use markdown::Markdown;
59use multi_buffer::{
60 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, ExpandInfo, MultiBufferPoint,
61 MultiBufferRow, RowInfo,
62};
63
64use project::{
65 Entry, ProjectPath,
66 debugger::breakpoint_store::{Breakpoint, BreakpointSessionState},
67 project_settings::ProjectSettings,
68};
69use settings::{
70 GitGutterSetting, GitHunkStyleSetting, IndentGuideBackgroundColoring, IndentGuideColoring,
71 Settings,
72};
73use smallvec::{SmallVec, smallvec};
74use std::{
75 any::TypeId,
76 borrow::Cow,
77 cmp::{self, Ordering},
78 fmt::{self, Write},
79 iter, mem,
80 ops::{Deref, Range},
81 path::{self, Path},
82 rc::Rc,
83 sync::Arc,
84 time::{Duration, Instant},
85};
86use sum_tree::Bias;
87use text::{BufferId, SelectionGoal};
88use theme::{ActiveTheme, Appearance, BufferLineHeight, PlayerColor};
89use ui::utils::ensure_minimum_contrast;
90use ui::{
91 ButtonLike, ContextMenu, Indicator, KeyBinding, POPOVER_Y_PADDING, Tooltip, h_flex, prelude::*,
92 right_click_menu, scrollbars::ShowScrollbar, text_for_keystroke,
93};
94use unicode_segmentation::UnicodeSegmentation;
95use util::post_inc;
96use util::{RangeExt, ResultExt, debug_panic};
97use workspace::{
98 CollaboratorId, ItemSettings, OpenInTerminal, OpenTerminal, RevealInProjectPanel, Workspace,
99 item::{Item, ItemBufferKind},
100 notifications::NotifyTaskExt,
101};
102
103/// Determines what kinds of highlights should be applied to a lines background.
104#[derive(Clone, Copy, Default)]
105struct LineHighlightSpec {
106 selection: bool,
107 breakpoint: bool,
108 _active_stack_frame: bool,
109}
110
111#[derive(Debug)]
112struct SelectionLayout {
113 head: DisplayPoint,
114 cursor_shape: CursorShape,
115 is_newest: bool,
116 is_local: bool,
117 range: Range<DisplayPoint>,
118 active_rows: Range<DisplayRow>,
119 user_name: Option<SharedString>,
120}
121
122struct InlineBlameLayout {
123 element: AnyElement,
124 bounds: Bounds<Pixels>,
125 buffer_id: BufferId,
126 entry: BlameEntry,
127}
128
129impl SelectionLayout {
130 fn new<T: ToPoint + ToDisplayPoint + Clone>(
131 selection: Selection<T>,
132 line_mode: bool,
133 cursor_shape: CursorShape,
134 map: &DisplaySnapshot,
135 is_newest: bool,
136 is_local: bool,
137 user_name: Option<SharedString>,
138 ) -> Self {
139 let point_selection = selection.map(|p| p.to_point(map.buffer_snapshot()));
140 let display_selection = point_selection.map(|p| p.to_display_point(map));
141 let mut range = display_selection.range();
142 let mut head = display_selection.head();
143 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
144 ..map.next_line_boundary(point_selection.end).1.row();
145
146 // vim visual line mode
147 if line_mode {
148 let point_range = map.expand_to_line(point_selection.range());
149 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
150 }
151
152 // any vim visual mode (including line mode)
153 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
154 && !range.is_empty()
155 && !selection.reversed
156 {
157 if head.column() > 0 {
158 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
159 } else if head.row().0 > 0 && head != map.max_point() {
160 head = map.clip_point(
161 DisplayPoint::new(
162 head.row().previous_row(),
163 map.line_len(head.row().previous_row()),
164 ),
165 Bias::Left,
166 );
167 // updating range.end is a no-op unless you're cursor is
168 // on the newline containing a multi-buffer divider
169 // in which case the clip_point may have moved the head up
170 // an additional row.
171 range.end = DisplayPoint::new(head.row().next_row(), 0);
172 active_rows.end = head.row();
173 }
174 }
175
176 Self {
177 head,
178 cursor_shape,
179 is_newest,
180 is_local,
181 range,
182 active_rows,
183 user_name,
184 }
185 }
186}
187
188pub struct EditorElement {
189 editor: Entity<Editor>,
190 style: EditorStyle,
191}
192
193type DisplayRowDelta = u32;
194
195impl EditorElement {
196 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
197
198 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
199 Self {
200 editor: editor.clone(),
201 style,
202 }
203 }
204
205 fn register_actions(&self, window: &mut Window, cx: &mut App) {
206 let editor = &self.editor;
207 editor.update(cx, |editor, cx| {
208 for action in editor.editor_actions.borrow().values() {
209 (action)(editor, window, cx)
210 }
211 });
212
213 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
214 crate::clangd_ext::apply_related_actions(editor, window, cx);
215
216 register_action(editor, window, Editor::open_context_menu);
217 register_action(editor, window, Editor::move_left);
218 register_action(editor, window, Editor::move_right);
219 register_action(editor, window, Editor::move_down);
220 register_action(editor, window, Editor::move_down_by_lines);
221 register_action(editor, window, Editor::select_down_by_lines);
222 register_action(editor, window, Editor::move_up);
223 register_action(editor, window, Editor::move_up_by_lines);
224 register_action(editor, window, Editor::select_up_by_lines);
225 register_action(editor, window, Editor::select_page_down);
226 register_action(editor, window, Editor::select_page_up);
227 register_action(editor, window, Editor::cancel);
228 register_action(editor, window, Editor::newline);
229 register_action(editor, window, Editor::newline_above);
230 register_action(editor, window, Editor::newline_below);
231 register_action(editor, window, Editor::backspace);
232 register_action(editor, window, Editor::blame_hover);
233 register_action(editor, window, Editor::delete);
234 register_action(editor, window, Editor::tab);
235 register_action(editor, window, Editor::next_snippet_tabstop);
236 register_action(editor, window, Editor::previous_snippet_tabstop);
237 register_action(editor, window, Editor::backtab);
238 register_action(editor, window, Editor::indent);
239 register_action(editor, window, Editor::outdent);
240 register_action(editor, window, Editor::autoindent);
241 register_action(editor, window, Editor::delete_line);
242 register_action(editor, window, Editor::join_lines);
243 register_action(editor, window, Editor::sort_lines_by_length);
244 register_action(editor, window, Editor::sort_lines_case_sensitive);
245 register_action(editor, window, Editor::sort_lines_case_insensitive);
246 register_action(editor, window, Editor::reverse_lines);
247 register_action(editor, window, Editor::shuffle_lines);
248 register_action(editor, window, Editor::convert_indentation_to_spaces);
249 register_action(editor, window, Editor::convert_indentation_to_tabs);
250 register_action(editor, window, Editor::convert_to_upper_case);
251 register_action(editor, window, Editor::convert_to_lower_case);
252 register_action(editor, window, Editor::convert_to_title_case);
253 register_action(editor, window, Editor::convert_to_snake_case);
254 register_action(editor, window, Editor::convert_to_kebab_case);
255 register_action(editor, window, Editor::convert_to_upper_camel_case);
256 register_action(editor, window, Editor::convert_to_lower_camel_case);
257 register_action(editor, window, Editor::convert_to_opposite_case);
258 register_action(editor, window, Editor::convert_to_sentence_case);
259 register_action(editor, window, Editor::toggle_case);
260 register_action(editor, window, Editor::convert_to_rot13);
261 register_action(editor, window, Editor::convert_to_rot47);
262 register_action(editor, window, Editor::delete_to_previous_word_start);
263 register_action(editor, window, Editor::delete_to_previous_subword_start);
264 register_action(editor, window, Editor::delete_to_next_word_end);
265 register_action(editor, window, Editor::delete_to_next_subword_end);
266 register_action(editor, window, Editor::delete_to_beginning_of_line);
267 register_action(editor, window, Editor::delete_to_end_of_line);
268 register_action(editor, window, Editor::cut_to_end_of_line);
269 register_action(editor, window, Editor::duplicate_line_up);
270 register_action(editor, window, Editor::duplicate_line_down);
271 register_action(editor, window, Editor::duplicate_selection);
272 register_action(editor, window, Editor::move_line_up);
273 register_action(editor, window, Editor::move_line_down);
274 register_action(editor, window, Editor::transpose);
275 register_action(editor, window, Editor::rewrap);
276 register_action(editor, window, Editor::cut);
277 register_action(editor, window, Editor::kill_ring_cut);
278 register_action(editor, window, Editor::kill_ring_yank);
279 register_action(editor, window, Editor::copy);
280 register_action(editor, window, Editor::copy_and_trim);
281 register_action(editor, window, Editor::diff_clipboard_with_selection);
282 register_action(editor, window, Editor::paste);
283 register_action(editor, window, Editor::undo);
284 register_action(editor, window, Editor::redo);
285 register_action(editor, window, Editor::move_page_up);
286 register_action(editor, window, Editor::move_page_down);
287 register_action(editor, window, Editor::next_screen);
288 register_action(editor, window, Editor::scroll_cursor_top);
289 register_action(editor, window, Editor::scroll_cursor_center);
290 register_action(editor, window, Editor::scroll_cursor_bottom);
291 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
292 register_action(editor, window, |editor, _: &LineDown, window, cx| {
293 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
294 });
295 register_action(editor, window, |editor, _: &LineUp, window, cx| {
296 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
297 });
298 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
299 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
300 });
301 register_action(
302 editor,
303 window,
304 |editor, HandleInput(text): &HandleInput, window, cx| {
305 if text.is_empty() {
306 return;
307 }
308 editor.handle_input(text, window, cx);
309 },
310 );
311 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
312 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
313 });
314 register_action(editor, window, |editor, _: &PageDown, window, cx| {
315 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
316 });
317 register_action(editor, window, |editor, _: &PageUp, window, cx| {
318 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
319 });
320 register_action(editor, window, Editor::move_to_previous_word_start);
321 register_action(editor, window, Editor::move_to_previous_subword_start);
322 register_action(editor, window, Editor::move_to_next_word_end);
323 register_action(editor, window, Editor::move_to_next_subword_end);
324 register_action(editor, window, Editor::move_to_beginning_of_line);
325 register_action(editor, window, Editor::move_to_end_of_line);
326 register_action(editor, window, Editor::move_to_start_of_paragraph);
327 register_action(editor, window, Editor::move_to_end_of_paragraph);
328 register_action(editor, window, Editor::move_to_beginning);
329 register_action(editor, window, Editor::move_to_end);
330 register_action(editor, window, Editor::move_to_start_of_excerpt);
331 register_action(editor, window, Editor::move_to_start_of_next_excerpt);
332 register_action(editor, window, Editor::move_to_end_of_excerpt);
333 register_action(editor, window, Editor::move_to_end_of_previous_excerpt);
334 register_action(editor, window, Editor::select_up);
335 register_action(editor, window, Editor::select_down);
336 register_action(editor, window, Editor::select_left);
337 register_action(editor, window, Editor::select_right);
338 register_action(editor, window, Editor::select_to_previous_word_start);
339 register_action(editor, window, Editor::select_to_previous_subword_start);
340 register_action(editor, window, Editor::select_to_next_word_end);
341 register_action(editor, window, Editor::select_to_next_subword_end);
342 register_action(editor, window, Editor::select_to_beginning_of_line);
343 register_action(editor, window, Editor::select_to_end_of_line);
344 register_action(editor, window, Editor::select_to_start_of_paragraph);
345 register_action(editor, window, Editor::select_to_end_of_paragraph);
346 register_action(editor, window, Editor::select_to_start_of_excerpt);
347 register_action(editor, window, Editor::select_to_start_of_next_excerpt);
348 register_action(editor, window, Editor::select_to_end_of_excerpt);
349 register_action(editor, window, Editor::select_to_end_of_previous_excerpt);
350 register_action(editor, window, Editor::select_to_beginning);
351 register_action(editor, window, Editor::select_to_end);
352 register_action(editor, window, Editor::select_all);
353 register_action(editor, window, |editor, action, window, cx| {
354 editor.select_all_matches(action, window, cx).log_err();
355 });
356 register_action(editor, window, Editor::select_line);
357 register_action(editor, window, Editor::split_selection_into_lines);
358 register_action(editor, window, Editor::add_selection_above);
359 register_action(editor, window, Editor::add_selection_below);
360 register_action(editor, window, |editor, action, window, cx| {
361 editor.select_next(action, window, cx).log_err();
362 });
363 register_action(editor, window, |editor, action, window, cx| {
364 editor.select_previous(action, window, cx).log_err();
365 });
366 register_action(editor, window, |editor, action, window, cx| {
367 editor.find_next_match(action, window, cx).log_err();
368 });
369 register_action(editor, window, |editor, action, window, cx| {
370 editor.find_previous_match(action, window, cx).log_err();
371 });
372 register_action(editor, window, Editor::toggle_comments);
373 register_action(editor, window, Editor::select_larger_syntax_node);
374 register_action(editor, window, Editor::select_smaller_syntax_node);
375 register_action(editor, window, Editor::select_next_syntax_node);
376 register_action(editor, window, Editor::select_prev_syntax_node);
377 register_action(editor, window, Editor::unwrap_syntax_node);
378 register_action(editor, window, Editor::select_enclosing_symbol);
379 register_action(editor, window, Editor::move_to_enclosing_bracket);
380 register_action(editor, window, Editor::undo_selection);
381 register_action(editor, window, Editor::redo_selection);
382 if editor.read(cx).buffer_kind(cx) == ItemBufferKind::Multibuffer {
383 register_action(editor, window, Editor::expand_excerpts);
384 register_action(editor, window, Editor::expand_excerpts_up);
385 register_action(editor, window, Editor::expand_excerpts_down);
386 }
387 register_action(editor, window, Editor::go_to_diagnostic);
388 register_action(editor, window, Editor::go_to_prev_diagnostic);
389 register_action(editor, window, Editor::go_to_next_hunk);
390 register_action(editor, window, Editor::go_to_prev_hunk);
391 register_action(editor, window, Editor::go_to_next_document_highlight);
392 register_action(editor, window, Editor::go_to_prev_document_highlight);
393 register_action(editor, window, |editor, action, window, cx| {
394 editor
395 .go_to_definition(action, window, cx)
396 .detach_and_log_err(cx);
397 });
398 register_action(editor, window, |editor, action, window, cx| {
399 editor
400 .go_to_definition_split(action, window, cx)
401 .detach_and_log_err(cx);
402 });
403 register_action(editor, window, |editor, action, window, cx| {
404 editor
405 .go_to_declaration(action, window, cx)
406 .detach_and_log_err(cx);
407 });
408 register_action(editor, window, |editor, action, window, cx| {
409 editor
410 .go_to_declaration_split(action, window, cx)
411 .detach_and_log_err(cx);
412 });
413 register_action(editor, window, |editor, action, window, cx| {
414 editor
415 .go_to_implementation(action, window, cx)
416 .detach_and_log_err(cx);
417 });
418 register_action(editor, window, |editor, action, window, cx| {
419 editor
420 .go_to_implementation_split(action, window, cx)
421 .detach_and_log_err(cx);
422 });
423 register_action(editor, window, |editor, action, window, cx| {
424 editor
425 .go_to_type_definition(action, window, cx)
426 .detach_and_log_err(cx);
427 });
428 register_action(editor, window, |editor, action, window, cx| {
429 editor
430 .go_to_type_definition_split(action, window, cx)
431 .detach_and_log_err(cx);
432 });
433 register_action(editor, window, Editor::open_url);
434 register_action(editor, window, Editor::open_selected_filename);
435 register_action(editor, window, Editor::fold);
436 register_action(editor, window, Editor::fold_at_level);
437 register_action(editor, window, Editor::fold_at_level_1);
438 register_action(editor, window, Editor::fold_at_level_2);
439 register_action(editor, window, Editor::fold_at_level_3);
440 register_action(editor, window, Editor::fold_at_level_4);
441 register_action(editor, window, Editor::fold_at_level_5);
442 register_action(editor, window, Editor::fold_at_level_6);
443 register_action(editor, window, Editor::fold_at_level_7);
444 register_action(editor, window, Editor::fold_at_level_8);
445 register_action(editor, window, Editor::fold_at_level_9);
446 register_action(editor, window, Editor::fold_all);
447 register_action(editor, window, Editor::fold_function_bodies);
448 register_action(editor, window, Editor::fold_recursive);
449 register_action(editor, window, Editor::toggle_fold);
450 register_action(editor, window, Editor::toggle_fold_recursive);
451 register_action(editor, window, Editor::toggle_fold_all);
452 register_action(editor, window, Editor::unfold_lines);
453 register_action(editor, window, Editor::unfold_recursive);
454 register_action(editor, window, Editor::unfold_all);
455 register_action(editor, window, Editor::fold_selected_ranges);
456 register_action(editor, window, Editor::set_mark);
457 register_action(editor, window, Editor::swap_selection_ends);
458 register_action(editor, window, Editor::show_completions);
459 register_action(editor, window, Editor::show_word_completions);
460 register_action(editor, window, Editor::toggle_code_actions);
461 register_action(editor, window, Editor::open_excerpts);
462 register_action(editor, window, Editor::open_excerpts_in_split);
463 register_action(editor, window, Editor::toggle_soft_wrap);
464 register_action(editor, window, Editor::toggle_tab_bar);
465 register_action(editor, window, Editor::toggle_line_numbers);
466 register_action(editor, window, Editor::toggle_relative_line_numbers);
467 register_action(editor, window, Editor::toggle_indent_guides);
468 register_action(editor, window, Editor::toggle_inlay_hints);
469 register_action(editor, window, Editor::toggle_edit_predictions);
470 if editor.read(cx).diagnostics_enabled() {
471 register_action(editor, window, Editor::toggle_diagnostics);
472 }
473 if editor.read(cx).inline_diagnostics_enabled() {
474 register_action(editor, window, Editor::toggle_inline_diagnostics);
475 }
476 if editor.read(cx).supports_minimap(cx) {
477 register_action(editor, window, Editor::toggle_minimap);
478 }
479 register_action(editor, window, hover_popover::hover);
480 register_action(editor, window, Editor::reveal_in_finder);
481 register_action(editor, window, Editor::copy_path);
482 register_action(editor, window, Editor::copy_relative_path);
483 register_action(editor, window, Editor::copy_file_name);
484 register_action(editor, window, Editor::copy_file_name_without_extension);
485 register_action(editor, window, Editor::copy_highlight_json);
486 register_action(editor, window, Editor::copy_permalink_to_line);
487 register_action(editor, window, Editor::open_permalink_to_line);
488 register_action(editor, window, Editor::copy_file_location);
489 register_action(editor, window, Editor::toggle_git_blame);
490 register_action(editor, window, Editor::toggle_git_blame_inline);
491 register_action(editor, window, Editor::open_git_blame_commit);
492 register_action(editor, window, Editor::toggle_selected_diff_hunks);
493 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
494 register_action(editor, window, Editor::stage_and_next);
495 register_action(editor, window, Editor::unstage_and_next);
496 register_action(editor, window, Editor::expand_all_diff_hunks);
497 register_action(editor, window, Editor::collapse_all_diff_hunks);
498 register_action(editor, window, Editor::go_to_previous_change);
499 register_action(editor, window, Editor::go_to_next_change);
500 register_action(editor, window, Editor::go_to_prev_reference);
501 register_action(editor, window, Editor::go_to_next_reference);
502
503 register_action(editor, window, |editor, action, window, cx| {
504 if let Some(task) = editor.format(action, window, cx) {
505 task.detach_and_notify_err(window, cx);
506 } else {
507 cx.propagate();
508 }
509 });
510 register_action(editor, window, |editor, action, window, cx| {
511 if let Some(task) = editor.format_selections(action, window, cx) {
512 task.detach_and_notify_err(window, cx);
513 } else {
514 cx.propagate();
515 }
516 });
517 register_action(editor, window, |editor, action, window, cx| {
518 if let Some(task) = editor.organize_imports(action, window, cx) {
519 task.detach_and_notify_err(window, cx);
520 } else {
521 cx.propagate();
522 }
523 });
524 register_action(editor, window, Editor::restart_language_server);
525 register_action(editor, window, Editor::stop_language_server);
526 register_action(editor, window, Editor::show_character_palette);
527 register_action(editor, window, |editor, action, window, cx| {
528 if let Some(task) = editor.confirm_completion(action, window, cx) {
529 task.detach_and_notify_err(window, cx);
530 } else {
531 cx.propagate();
532 }
533 });
534 register_action(editor, window, |editor, action, window, cx| {
535 if let Some(task) = editor.confirm_completion_replace(action, window, cx) {
536 task.detach_and_notify_err(window, cx);
537 } else {
538 cx.propagate();
539 }
540 });
541 register_action(editor, window, |editor, action, window, cx| {
542 if let Some(task) = editor.confirm_completion_insert(action, window, cx) {
543 task.detach_and_notify_err(window, cx);
544 } else {
545 cx.propagate();
546 }
547 });
548 register_action(editor, window, |editor, action, window, cx| {
549 if let Some(task) = editor.compose_completion(action, window, cx) {
550 task.detach_and_notify_err(window, cx);
551 } else {
552 cx.propagate();
553 }
554 });
555 register_action(editor, window, |editor, action, window, cx| {
556 if let Some(task) = editor.confirm_code_action(action, window, cx) {
557 task.detach_and_notify_err(window, cx);
558 } else {
559 cx.propagate();
560 }
561 });
562 register_action(editor, window, |editor, action, window, cx| {
563 if let Some(task) = editor.rename(action, window, cx) {
564 task.detach_and_notify_err(window, cx);
565 } else {
566 cx.propagate();
567 }
568 });
569 register_action(editor, window, |editor, action, window, cx| {
570 if let Some(task) = editor.confirm_rename(action, window, cx) {
571 task.detach_and_notify_err(window, cx);
572 } else {
573 cx.propagate();
574 }
575 });
576 register_action(editor, window, |editor, action, window, cx| {
577 if let Some(task) = editor.find_all_references(action, window, cx) {
578 task.detach_and_log_err(cx);
579 } else {
580 cx.propagate();
581 }
582 });
583 register_action(editor, window, Editor::show_signature_help);
584 register_action(editor, window, Editor::signature_help_prev);
585 register_action(editor, window, Editor::signature_help_next);
586 register_action(editor, window, Editor::next_edit_prediction);
587 register_action(editor, window, Editor::previous_edit_prediction);
588 register_action(editor, window, Editor::show_edit_prediction);
589 register_action(editor, window, Editor::context_menu_first);
590 register_action(editor, window, Editor::context_menu_prev);
591 register_action(editor, window, Editor::context_menu_next);
592 register_action(editor, window, Editor::context_menu_last);
593 register_action(editor, window, Editor::display_cursor_names);
594 register_action(editor, window, Editor::unique_lines_case_insensitive);
595 register_action(editor, window, Editor::unique_lines_case_sensitive);
596 register_action(editor, window, Editor::accept_partial_edit_prediction);
597 register_action(editor, window, Editor::accept_edit_prediction);
598 register_action(editor, window, Editor::restore_file);
599 register_action(editor, window, Editor::git_restore);
600 register_action(editor, window, Editor::apply_all_diff_hunks);
601 register_action(editor, window, Editor::apply_selected_diff_hunks);
602 register_action(editor, window, Editor::open_active_item_in_terminal);
603 register_action(editor, window, Editor::reload_file);
604 register_action(editor, window, Editor::spawn_nearest_task);
605 register_action(editor, window, Editor::insert_uuid_v4);
606 register_action(editor, window, Editor::insert_uuid_v7);
607 register_action(editor, window, Editor::open_selections_in_multibuffer);
608 register_action(editor, window, Editor::toggle_breakpoint);
609 register_action(editor, window, Editor::edit_log_breakpoint);
610 register_action(editor, window, Editor::enable_breakpoint);
611 register_action(editor, window, Editor::disable_breakpoint);
612 if editor.read(cx).enable_wrap_selections_in_tag(cx) {
613 register_action(editor, window, Editor::wrap_selections_in_tag);
614 }
615 }
616
617 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
618 let position_map = layout.position_map.clone();
619 window.on_key_event({
620 let editor = self.editor.clone();
621 move |event: &ModifiersChangedEvent, phase, window, cx| {
622 if phase != DispatchPhase::Bubble {
623 return;
624 }
625 editor.update(cx, |editor, cx| {
626 let inlay_hint_settings = inlay_hint_settings(
627 editor.selections.newest_anchor().head(),
628 &editor.buffer.read(cx).snapshot(cx),
629 cx,
630 );
631
632 if let Some(inlay_modifiers) = inlay_hint_settings
633 .toggle_on_modifiers_press
634 .as_ref()
635 .filter(|modifiers| modifiers.modified())
636 {
637 editor.refresh_inlay_hints(
638 InlayHintRefreshReason::ModifiersChanged(
639 inlay_modifiers == &event.modifiers,
640 ),
641 cx,
642 );
643 }
644
645 if editor.hover_state.focused(window, cx) {
646 return;
647 }
648
649 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
650 })
651 }
652 });
653 }
654
655 fn mouse_left_down(
656 editor: &mut Editor,
657 event: &MouseDownEvent,
658 position_map: &PositionMap,
659 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
660 window: &mut Window,
661 cx: &mut Context<Editor>,
662 ) {
663 if window.default_prevented() {
664 return;
665 }
666
667 let text_hitbox = &position_map.text_hitbox;
668 let gutter_hitbox = &position_map.gutter_hitbox;
669 let point_for_position = position_map.point_for_position(event.position);
670 let mut click_count = event.click_count;
671 let mut modifiers = event.modifiers;
672
673 if let Some(hovered_hunk) =
674 position_map
675 .display_hunks
676 .iter()
677 .find_map(|(hunk, hunk_hitbox)| match hunk {
678 DisplayDiffHunk::Folded { .. } => None,
679 DisplayDiffHunk::Unfolded {
680 multi_buffer_range, ..
681 } => hunk_hitbox
682 .as_ref()
683 .is_some_and(|hitbox| hitbox.is_hovered(window))
684 .then(|| multi_buffer_range.clone()),
685 })
686 {
687 editor.toggle_single_diff_hunk(hovered_hunk, cx);
688 cx.notify();
689 return;
690 } else if gutter_hitbox.is_hovered(window) {
691 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
692 } else if !text_hitbox.is_hovered(window) {
693 return;
694 }
695
696 if EditorSettings::get_global(cx)
697 .drag_and_drop_selection
698 .enabled
699 && click_count == 1
700 && !modifiers.shift
701 {
702 let newest_anchor = editor.selections.newest_anchor();
703 let snapshot = editor.snapshot(window, cx);
704 let selection = newest_anchor.map(|anchor| anchor.to_display_point(&snapshot));
705 if point_for_position.intersects_selection(&selection) {
706 editor.selection_drag_state = SelectionDragState::ReadyToDrag {
707 selection: newest_anchor.clone(),
708 click_position: event.position,
709 mouse_down_time: Instant::now(),
710 };
711 cx.stop_propagation();
712 return;
713 }
714 }
715
716 let is_singleton = editor.buffer().read(cx).is_singleton();
717
718 if click_count == 2 && !is_singleton {
719 match EditorSettings::get_global(cx).double_click_in_multibuffer {
720 DoubleClickInMultibuffer::Select => {
721 // do nothing special on double click, all selection logic is below
722 }
723 DoubleClickInMultibuffer::Open => {
724 if modifiers.alt {
725 // if double click is made with alt, pretend it's a regular double click without opening and alt,
726 // and run the selection logic.
727 modifiers.alt = false;
728 } else {
729 let scroll_position_row = position_map.scroll_position.y;
730 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
731 / position_map.line_height)
732 as f64
733 + position_map.scroll_position.y)
734 as u32;
735 let multi_buffer_row = position_map
736 .snapshot
737 .display_point_to_point(
738 DisplayPoint::new(DisplayRow(display_row), 0),
739 Bias::Right,
740 )
741 .row;
742 let line_offset_from_top = display_row - scroll_position_row as u32;
743 // if double click is made without alt, open the corresponding excerp
744 editor.open_excerpts_common(
745 Some(JumpData::MultiBufferRow {
746 row: MultiBufferRow(multi_buffer_row),
747 line_offset_from_top,
748 }),
749 false,
750 window,
751 cx,
752 );
753 return;
754 }
755 }
756 }
757 }
758
759 if !is_singleton {
760 let display_row = (ScrollPixelOffset::from(
761 (event.position - gutter_hitbox.bounds.origin).y / position_map.line_height,
762 ) + position_map.scroll_position.y) as u32;
763 let multi_buffer_row = position_map
764 .snapshot
765 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
766 .row;
767 if line_numbers
768 .get(&MultiBufferRow(multi_buffer_row))
769 .is_some_and(|line_layout| {
770 line_layout.segments.iter().any(|segment| {
771 segment
772 .hitbox
773 .as_ref()
774 .is_some_and(|hitbox| hitbox.contains(&event.position))
775 })
776 })
777 {
778 let line_offset_from_top = display_row - position_map.scroll_position.y as u32;
779
780 editor.open_excerpts_common(
781 Some(JumpData::MultiBufferRow {
782 row: MultiBufferRow(multi_buffer_row),
783 line_offset_from_top,
784 }),
785 modifiers.alt,
786 window,
787 cx,
788 );
789 cx.stop_propagation();
790 return;
791 }
792 }
793
794 let position = point_for_position.previous_valid;
795 if let Some(mode) = Editor::columnar_selection_mode(&modifiers, cx) {
796 editor.select(
797 SelectPhase::BeginColumnar {
798 position,
799 reset: match mode {
800 ColumnarMode::FromMouse => true,
801 ColumnarMode::FromSelection => false,
802 },
803 mode,
804 goal_column: point_for_position.exact_unclipped.column(),
805 },
806 window,
807 cx,
808 );
809 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
810 {
811 editor.select(
812 SelectPhase::Extend {
813 position,
814 click_count,
815 },
816 window,
817 cx,
818 );
819 } else {
820 editor.select(
821 SelectPhase::Begin {
822 position,
823 add: Editor::is_alt_pressed(&modifiers, cx),
824 click_count,
825 },
826 window,
827 cx,
828 );
829 }
830 cx.stop_propagation();
831 }
832
833 fn mouse_right_down(
834 editor: &mut Editor,
835 event: &MouseDownEvent,
836 position_map: &PositionMap,
837 window: &mut Window,
838 cx: &mut Context<Editor>,
839 ) {
840 if position_map.gutter_hitbox.is_hovered(window) {
841 let gutter_right_padding = editor.gutter_dimensions.right_padding;
842 let hitbox = &position_map.gutter_hitbox;
843
844 if event.position.x <= hitbox.bounds.right() - gutter_right_padding {
845 let point_for_position = position_map.point_for_position(event.position);
846 editor.set_breakpoint_context_menu(
847 point_for_position.previous_valid.row(),
848 None,
849 event.position,
850 window,
851 cx,
852 );
853 }
854 return;
855 }
856
857 if !position_map.text_hitbox.is_hovered(window) {
858 return;
859 }
860
861 let point_for_position = position_map.point_for_position(event.position);
862 mouse_context_menu::deploy_context_menu(
863 editor,
864 Some(event.position),
865 point_for_position.previous_valid,
866 window,
867 cx,
868 );
869 cx.stop_propagation();
870 }
871
872 fn mouse_middle_down(
873 editor: &mut Editor,
874 event: &MouseDownEvent,
875 position_map: &PositionMap,
876 window: &mut Window,
877 cx: &mut Context<Editor>,
878 ) {
879 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
880 return;
881 }
882
883 let point_for_position = position_map.point_for_position(event.position);
884 let position = point_for_position.previous_valid;
885
886 editor.select(
887 SelectPhase::BeginColumnar {
888 position,
889 reset: true,
890 mode: ColumnarMode::FromMouse,
891 goal_column: point_for_position.exact_unclipped.column(),
892 },
893 window,
894 cx,
895 );
896 }
897
898 fn mouse_up(
899 editor: &mut Editor,
900 event: &MouseUpEvent,
901 position_map: &PositionMap,
902 window: &mut Window,
903 cx: &mut Context<Editor>,
904 ) {
905 let text_hitbox = &position_map.text_hitbox;
906 let end_selection = editor.has_pending_selection();
907 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
908 let point_for_position = position_map.point_for_position(event.position);
909
910 match editor.selection_drag_state {
911 SelectionDragState::ReadyToDrag {
912 selection: _,
913 ref click_position,
914 mouse_down_time: _,
915 } => {
916 if event.position == *click_position {
917 editor.select(
918 SelectPhase::Begin {
919 position: point_for_position.previous_valid,
920 add: false,
921 click_count: 1, // ready to drag state only occurs on click count 1
922 },
923 window,
924 cx,
925 );
926 editor.selection_drag_state = SelectionDragState::None;
927 cx.stop_propagation();
928 return;
929 } else {
930 debug_panic!("drag state can never be in ready state after drag")
931 }
932 }
933 SelectionDragState::Dragging { ref selection, .. } => {
934 let snapshot = editor.snapshot(window, cx);
935 let selection_display = selection.map(|anchor| anchor.to_display_point(&snapshot));
936 if !point_for_position.intersects_selection(&selection_display)
937 && text_hitbox.is_hovered(window)
938 {
939 let is_cut = !(cfg!(target_os = "macos") && event.modifiers.alt
940 || cfg!(not(target_os = "macos")) && event.modifiers.control);
941 editor.move_selection_on_drop(
942 &selection.clone(),
943 point_for_position.previous_valid,
944 is_cut,
945 window,
946 cx,
947 );
948 }
949 editor.selection_drag_state = SelectionDragState::None;
950 cx.stop_propagation();
951 cx.notify();
952 return;
953 }
954 _ => {}
955 }
956
957 if end_selection {
958 editor.select(SelectPhase::End, window, cx);
959 }
960
961 if end_selection && pending_nonempty_selections {
962 cx.stop_propagation();
963 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
964 && event.button == MouseButton::Middle
965 {
966 #[allow(
967 clippy::collapsible_if,
968 clippy::needless_return,
969 reason = "The cfg-block below makes this a false positive"
970 )]
971 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
972 return;
973 }
974
975 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
976 if EditorSettings::get_global(cx).middle_click_paste {
977 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
978 let point_for_position = position_map.point_for_position(event.position);
979 let position = point_for_position.previous_valid;
980
981 editor.select(
982 SelectPhase::Begin {
983 position,
984 add: false,
985 click_count: 1,
986 },
987 window,
988 cx,
989 );
990 editor.insert(&text, window, cx);
991 }
992 cx.stop_propagation()
993 }
994 }
995 }
996
997 fn click(
998 editor: &mut Editor,
999 event: &ClickEvent,
1000 position_map: &PositionMap,
1001 window: &mut Window,
1002 cx: &mut Context<Editor>,
1003 ) {
1004 let text_hitbox = &position_map.text_hitbox;
1005 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
1006
1007 let hovered_link_modifier = Editor::is_cmd_or_ctrl_pressed(&event.modifiers(), cx);
1008
1009 if let Some(mouse_position) = event.mouse_position()
1010 && !pending_nonempty_selections
1011 && hovered_link_modifier
1012 && text_hitbox.is_hovered(window)
1013 {
1014 let point = position_map.point_for_position(mouse_position);
1015 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
1016 editor.selection_drag_state = SelectionDragState::None;
1017
1018 cx.stop_propagation();
1019 }
1020 }
1021
1022 fn mouse_dragged(
1023 editor: &mut Editor,
1024 event: &MouseMoveEvent,
1025 position_map: &PositionMap,
1026 window: &mut Window,
1027 cx: &mut Context<Editor>,
1028 ) {
1029 if !editor.has_pending_selection()
1030 && matches!(editor.selection_drag_state, SelectionDragState::None)
1031 {
1032 return;
1033 }
1034
1035 let point_for_position = position_map.point_for_position(event.position);
1036 let text_hitbox = &position_map.text_hitbox;
1037
1038 let scroll_delta = {
1039 let text_bounds = text_hitbox.bounds;
1040 let mut scroll_delta = gpui::Point::<f32>::default();
1041 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
1042 let top = text_bounds.origin.y + vertical_margin;
1043 let bottom = text_bounds.bottom_left().y - vertical_margin;
1044 if event.position.y < top {
1045 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
1046 }
1047 if event.position.y > bottom {
1048 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
1049 }
1050
1051 // We need horizontal width of text
1052 let style = editor.style.clone().unwrap_or_default();
1053 let font_id = window.text_system().resolve_font(&style.text.font());
1054 let font_size = style.text.font_size.to_pixels(window.rem_size());
1055 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
1056
1057 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
1058
1059 let scroll_space: Pixels = scroll_margin_x * em_width;
1060
1061 let left = text_bounds.origin.x + scroll_space;
1062 let right = text_bounds.top_right().x - scroll_space;
1063
1064 if event.position.x < left {
1065 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
1066 }
1067 if event.position.x > right {
1068 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
1069 }
1070 scroll_delta
1071 };
1072
1073 if !editor.has_pending_selection() {
1074 let drop_anchor = position_map
1075 .snapshot
1076 .display_point_to_anchor(point_for_position.previous_valid, Bias::Left);
1077 match editor.selection_drag_state {
1078 SelectionDragState::Dragging {
1079 ref mut drop_cursor,
1080 ref mut hide_drop_cursor,
1081 ..
1082 } => {
1083 drop_cursor.start = drop_anchor;
1084 drop_cursor.end = drop_anchor;
1085 *hide_drop_cursor = !text_hitbox.is_hovered(window);
1086 editor.apply_scroll_delta(scroll_delta, window, cx);
1087 cx.notify();
1088 }
1089 SelectionDragState::ReadyToDrag {
1090 ref selection,
1091 ref click_position,
1092 ref mouse_down_time,
1093 } => {
1094 let drag_and_drop_delay = Duration::from_millis(
1095 EditorSettings::get_global(cx)
1096 .drag_and_drop_selection
1097 .delay
1098 .0,
1099 );
1100 if mouse_down_time.elapsed() >= drag_and_drop_delay {
1101 let drop_cursor = Selection {
1102 id: post_inc(&mut editor.selections.next_selection_id()),
1103 start: drop_anchor,
1104 end: drop_anchor,
1105 reversed: false,
1106 goal: SelectionGoal::None,
1107 };
1108 editor.selection_drag_state = SelectionDragState::Dragging {
1109 selection: selection.clone(),
1110 drop_cursor,
1111 hide_drop_cursor: false,
1112 };
1113 editor.apply_scroll_delta(scroll_delta, window, cx);
1114 cx.notify();
1115 } else {
1116 let click_point = position_map.point_for_position(*click_position);
1117 editor.selection_drag_state = SelectionDragState::None;
1118 editor.select(
1119 SelectPhase::Begin {
1120 position: click_point.previous_valid,
1121 add: false,
1122 click_count: 1,
1123 },
1124 window,
1125 cx,
1126 );
1127 editor.select(
1128 SelectPhase::Update {
1129 position: point_for_position.previous_valid,
1130 goal_column: point_for_position.exact_unclipped.column(),
1131 scroll_delta,
1132 },
1133 window,
1134 cx,
1135 );
1136 }
1137 }
1138 _ => {}
1139 }
1140 } else {
1141 editor.select(
1142 SelectPhase::Update {
1143 position: point_for_position.previous_valid,
1144 goal_column: point_for_position.exact_unclipped.column(),
1145 scroll_delta,
1146 },
1147 window,
1148 cx,
1149 );
1150 }
1151 }
1152
1153 fn mouse_moved(
1154 editor: &mut Editor,
1155 event: &MouseMoveEvent,
1156 position_map: &PositionMap,
1157 window: &mut Window,
1158 cx: &mut Context<Editor>,
1159 ) {
1160 let text_hitbox = &position_map.text_hitbox;
1161 let gutter_hitbox = &position_map.gutter_hitbox;
1162 let modifiers = event.modifiers;
1163 let text_hovered = text_hitbox.is_hovered(window);
1164 let gutter_hovered = gutter_hitbox.is_hovered(window);
1165 editor.set_gutter_hovered(gutter_hovered, cx);
1166 editor.show_mouse_cursor(cx);
1167
1168 let point_for_position = position_map.point_for_position(event.position);
1169 let valid_point = point_for_position.previous_valid;
1170
1171 let hovered_diff_control = position_map
1172 .diff_hunk_control_bounds
1173 .iter()
1174 .find(|(_, bounds)| bounds.contains(&event.position))
1175 .map(|(row, _)| *row);
1176
1177 let hovered_diff_hunk_row = if let Some(control_row) = hovered_diff_control {
1178 Some(control_row)
1179 } else if text_hovered {
1180 let current_row = valid_point.row();
1181 position_map.display_hunks.iter().find_map(|(hunk, _)| {
1182 if let DisplayDiffHunk::Unfolded {
1183 display_row_range, ..
1184 } = hunk
1185 {
1186 if display_row_range.contains(¤t_row) {
1187 Some(display_row_range.start)
1188 } else {
1189 None
1190 }
1191 } else {
1192 None
1193 }
1194 })
1195 } else {
1196 None
1197 };
1198
1199 if hovered_diff_hunk_row != editor.hovered_diff_hunk_row {
1200 editor.hovered_diff_hunk_row = hovered_diff_hunk_row;
1201 cx.notify();
1202 }
1203
1204 if let Some((bounds, buffer_id, blame_entry)) = &position_map.inline_blame_bounds {
1205 let mouse_over_inline_blame = bounds.contains(&event.position);
1206 let mouse_over_popover = editor
1207 .inline_blame_popover
1208 .as_ref()
1209 .and_then(|state| state.popover_bounds)
1210 .is_some_and(|bounds| bounds.contains(&event.position));
1211 let keyboard_grace = editor
1212 .inline_blame_popover
1213 .as_ref()
1214 .is_some_and(|state| state.keyboard_grace);
1215
1216 if mouse_over_inline_blame || mouse_over_popover {
1217 editor.show_blame_popover(*buffer_id, blame_entry, event.position, false, cx);
1218 } else if !keyboard_grace {
1219 editor.hide_blame_popover(false, cx);
1220 }
1221 } else {
1222 editor.hide_blame_popover(false, cx);
1223 }
1224
1225 let breakpoint_indicator = if gutter_hovered {
1226 let buffer_anchor = position_map
1227 .snapshot
1228 .display_point_to_anchor(valid_point, Bias::Left);
1229
1230 if let Some((buffer_snapshot, file)) = position_map
1231 .snapshot
1232 .buffer_snapshot()
1233 .buffer_for_excerpt(buffer_anchor.excerpt_id)
1234 .and_then(|buffer| buffer.file().map(|file| (buffer, file)))
1235 {
1236 let as_point = text::ToPoint::to_point(&buffer_anchor.text_anchor, buffer_snapshot);
1237
1238 let is_visible = editor
1239 .gutter_breakpoint_indicator
1240 .0
1241 .is_some_and(|indicator| indicator.is_active);
1242
1243 let has_existing_breakpoint =
1244 editor.breakpoint_store.as_ref().is_some_and(|store| {
1245 let Some(project) = &editor.project else {
1246 return false;
1247 };
1248 let Some(abs_path) = project.read(cx).absolute_path(
1249 &ProjectPath {
1250 path: file.path().clone(),
1251 worktree_id: file.worktree_id(cx),
1252 },
1253 cx,
1254 ) else {
1255 return false;
1256 };
1257 store
1258 .read(cx)
1259 .breakpoint_at_row(&abs_path, as_point.row, cx)
1260 .is_some()
1261 });
1262
1263 if !is_visible {
1264 editor.gutter_breakpoint_indicator.1.get_or_insert_with(|| {
1265 cx.spawn(async move |this, cx| {
1266 cx.background_executor()
1267 .timer(Duration::from_millis(200))
1268 .await;
1269
1270 this.update(cx, |this, cx| {
1271 if let Some(indicator) = this.gutter_breakpoint_indicator.0.as_mut()
1272 {
1273 indicator.is_active = true;
1274 cx.notify();
1275 }
1276 })
1277 .ok();
1278 })
1279 });
1280 }
1281
1282 Some(PhantomBreakpointIndicator {
1283 display_row: valid_point.row(),
1284 is_active: is_visible,
1285 collides_with_existing_breakpoint: has_existing_breakpoint,
1286 })
1287 } else {
1288 editor.gutter_breakpoint_indicator.1 = None;
1289 None
1290 }
1291 } else {
1292 editor.gutter_breakpoint_indicator.1 = None;
1293 None
1294 };
1295
1296 if &breakpoint_indicator != &editor.gutter_breakpoint_indicator.0 {
1297 editor.gutter_breakpoint_indicator.0 = breakpoint_indicator;
1298 cx.notify();
1299 }
1300
1301 // Don't trigger hover popover if mouse is hovering over context menu
1302 if text_hovered {
1303 editor.update_hovered_link(
1304 point_for_position,
1305 &position_map.snapshot,
1306 modifiers,
1307 window,
1308 cx,
1309 );
1310
1311 if let Some(point) = point_for_position.as_valid() {
1312 let anchor = position_map
1313 .snapshot
1314 .buffer_snapshot()
1315 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
1316 hover_at(editor, Some(anchor), window, cx);
1317 Self::update_visible_cursor(editor, point, position_map, window, cx);
1318 } else {
1319 editor.update_inlay_link_and_hover_points(
1320 &position_map.snapshot,
1321 point_for_position,
1322 modifiers.secondary(),
1323 modifiers.shift,
1324 window,
1325 cx,
1326 );
1327 }
1328 } else {
1329 editor.hide_hovered_link(cx);
1330 hover_at(editor, None, window, cx);
1331 }
1332 }
1333
1334 fn update_visible_cursor(
1335 editor: &mut Editor,
1336 point: DisplayPoint,
1337 position_map: &PositionMap,
1338 window: &mut Window,
1339 cx: &mut Context<Editor>,
1340 ) {
1341 let snapshot = &position_map.snapshot;
1342 let Some(hub) = editor.collaboration_hub() else {
1343 return;
1344 };
1345 let start = snapshot.display_snapshot.clip_point(
1346 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
1347 Bias::Left,
1348 );
1349 let end = snapshot.display_snapshot.clip_point(
1350 DisplayPoint::new(
1351 point.row(),
1352 (point.column() + 1).min(snapshot.line_len(point.row())),
1353 ),
1354 Bias::Right,
1355 );
1356
1357 let range = snapshot
1358 .buffer_snapshot()
1359 .anchor_before(start.to_point(&snapshot.display_snapshot))
1360 ..snapshot
1361 .buffer_snapshot()
1362 .anchor_after(end.to_point(&snapshot.display_snapshot));
1363
1364 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
1365 return;
1366 };
1367 let key = crate::HoveredCursor {
1368 replica_id: selection.replica_id,
1369 selection_id: selection.selection.id,
1370 };
1371 editor.hovered_cursors.insert(
1372 key.clone(),
1373 cx.spawn_in(window, async move |editor, cx| {
1374 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
1375 editor
1376 .update(cx, |editor, cx| {
1377 editor.hovered_cursors.remove(&key);
1378 cx.notify();
1379 })
1380 .ok();
1381 }),
1382 );
1383 cx.notify()
1384 }
1385
1386 fn layout_selections(
1387 &self,
1388 start_anchor: Anchor,
1389 end_anchor: Anchor,
1390 local_selections: &[Selection<Point>],
1391 snapshot: &EditorSnapshot,
1392 start_row: DisplayRow,
1393 end_row: DisplayRow,
1394 window: &mut Window,
1395 cx: &mut App,
1396 ) -> (
1397 Vec<(PlayerColor, Vec<SelectionLayout>)>,
1398 BTreeMap<DisplayRow, LineHighlightSpec>,
1399 Option<DisplayPoint>,
1400 ) {
1401 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1402 let mut active_rows = BTreeMap::new();
1403 let mut newest_selection_head = None;
1404
1405 let Some(editor_with_selections) = self.editor_with_selections(cx) else {
1406 return (selections, active_rows, newest_selection_head);
1407 };
1408
1409 editor_with_selections.update(cx, |editor, cx| {
1410 if editor.show_local_selections {
1411 let mut layouts = Vec::new();
1412 let newest = editor.selections.newest(&editor.display_snapshot(cx));
1413 for selection in local_selections.iter().cloned() {
1414 let is_empty = selection.start == selection.end;
1415 let is_newest = selection == newest;
1416
1417 let layout = SelectionLayout::new(
1418 selection,
1419 editor.selections.line_mode(),
1420 editor.cursor_shape,
1421 &snapshot.display_snapshot,
1422 is_newest,
1423 editor.leader_id.is_none(),
1424 None,
1425 );
1426 if is_newest {
1427 newest_selection_head = Some(layout.head);
1428 }
1429
1430 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1431 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1432 {
1433 let contains_non_empty_selection = active_rows
1434 .entry(DisplayRow(row))
1435 .or_insert_with(LineHighlightSpec::default);
1436 contains_non_empty_selection.selection |= !is_empty;
1437 }
1438 layouts.push(layout);
1439 }
1440
1441 let mut player = editor.current_user_player_color(cx);
1442 if !editor.is_focused(window) {
1443 const UNFOCUS_EDITOR_SELECTION_OPACITY: f32 = 0.5;
1444 player.selection = player.selection.opacity(UNFOCUS_EDITOR_SELECTION_OPACITY);
1445 }
1446 selections.push((player, layouts));
1447
1448 if let SelectionDragState::Dragging {
1449 ref selection,
1450 ref drop_cursor,
1451 ref hide_drop_cursor,
1452 } = editor.selection_drag_state
1453 && !hide_drop_cursor
1454 && (drop_cursor
1455 .start
1456 .cmp(&selection.start, &snapshot.buffer_snapshot())
1457 .eq(&Ordering::Less)
1458 || drop_cursor
1459 .end
1460 .cmp(&selection.end, &snapshot.buffer_snapshot())
1461 .eq(&Ordering::Greater))
1462 {
1463 let drag_cursor_layout = SelectionLayout::new(
1464 drop_cursor.clone(),
1465 false,
1466 CursorShape::Bar,
1467 &snapshot.display_snapshot,
1468 false,
1469 false,
1470 None,
1471 );
1472 let absent_color = cx.theme().players().absent();
1473 selections.push((absent_color, vec![drag_cursor_layout]));
1474 }
1475 }
1476
1477 if let Some(collaboration_hub) = &editor.collaboration_hub {
1478 // When following someone, render the local selections in their color.
1479 if let Some(leader_id) = editor.leader_id {
1480 match leader_id {
1481 CollaboratorId::PeerId(peer_id) => {
1482 if let Some(collaborator) =
1483 collaboration_hub.collaborators(cx).get(&peer_id)
1484 && let Some(participant_index) = collaboration_hub
1485 .user_participant_indices(cx)
1486 .get(&collaborator.user_id)
1487 && let Some((local_selection_style, _)) = selections.first_mut()
1488 {
1489 *local_selection_style = cx
1490 .theme()
1491 .players()
1492 .color_for_participant(participant_index.0);
1493 }
1494 }
1495 CollaboratorId::Agent => {
1496 if let Some((local_selection_style, _)) = selections.first_mut() {
1497 *local_selection_style = cx.theme().players().agent();
1498 }
1499 }
1500 }
1501 }
1502
1503 let mut remote_selections = HashMap::default();
1504 for selection in snapshot.remote_selections_in_range(
1505 &(start_anchor..end_anchor),
1506 collaboration_hub.as_ref(),
1507 cx,
1508 ) {
1509 // Don't re-render the leader's selections, since the local selections
1510 // match theirs.
1511 if Some(selection.collaborator_id) == editor.leader_id {
1512 continue;
1513 }
1514 let key = HoveredCursor {
1515 replica_id: selection.replica_id,
1516 selection_id: selection.selection.id,
1517 };
1518
1519 let is_shown =
1520 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1521
1522 remote_selections
1523 .entry(selection.replica_id)
1524 .or_insert((selection.color, Vec::new()))
1525 .1
1526 .push(SelectionLayout::new(
1527 selection.selection,
1528 selection.line_mode,
1529 selection.cursor_shape,
1530 &snapshot.display_snapshot,
1531 false,
1532 false,
1533 if is_shown { selection.user_name } else { None },
1534 ));
1535 }
1536
1537 selections.extend(remote_selections.into_values());
1538 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1539 let layouts = snapshot
1540 .buffer_snapshot()
1541 .selections_in_range(&(start_anchor..end_anchor), true)
1542 .map(move |(_, line_mode, cursor_shape, selection)| {
1543 SelectionLayout::new(
1544 selection,
1545 line_mode,
1546 cursor_shape,
1547 &snapshot.display_snapshot,
1548 false,
1549 false,
1550 None,
1551 )
1552 })
1553 .collect::<Vec<_>>();
1554 let player = editor.current_user_player_color(cx);
1555 selections.push((player, layouts));
1556 }
1557 });
1558
1559 #[cfg(debug_assertions)]
1560 Self::layout_debug_ranges(
1561 &mut selections,
1562 start_anchor..end_anchor,
1563 &snapshot.display_snapshot,
1564 cx,
1565 );
1566
1567 (selections, active_rows, newest_selection_head)
1568 }
1569
1570 fn collect_cursors(
1571 &self,
1572 snapshot: &EditorSnapshot,
1573 cx: &mut App,
1574 ) -> Vec<(DisplayPoint, Hsla)> {
1575 let editor = self.editor.read(cx);
1576 let mut cursors = Vec::new();
1577 let mut skip_local = false;
1578 let mut add_cursor = |anchor: Anchor, color| {
1579 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1580 };
1581 // Remote cursors
1582 if let Some(collaboration_hub) = &editor.collaboration_hub {
1583 for remote_selection in snapshot.remote_selections_in_range(
1584 &(Anchor::min()..Anchor::max()),
1585 collaboration_hub.deref(),
1586 cx,
1587 ) {
1588 add_cursor(
1589 remote_selection.selection.head(),
1590 remote_selection.color.cursor,
1591 );
1592 if Some(remote_selection.collaborator_id) == editor.leader_id {
1593 skip_local = true;
1594 }
1595 }
1596 }
1597 // Local cursors
1598 if !skip_local {
1599 let color = cx.theme().players().local().cursor;
1600 editor
1601 .selections
1602 .disjoint_anchors()
1603 .iter()
1604 .for_each(|selection| {
1605 add_cursor(selection.head(), color);
1606 });
1607 if let Some(ref selection) = editor.selections.pending_anchor() {
1608 add_cursor(selection.head(), color);
1609 }
1610 }
1611 cursors
1612 }
1613
1614 fn layout_visible_cursors(
1615 &self,
1616 snapshot: &EditorSnapshot,
1617 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1618 row_block_types: &HashMap<DisplayRow, bool>,
1619 visible_display_row_range: Range<DisplayRow>,
1620 line_layouts: &[LineWithInvisibles],
1621 text_hitbox: &Hitbox,
1622 content_origin: gpui::Point<Pixels>,
1623 scroll_position: gpui::Point<ScrollOffset>,
1624 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
1625 line_height: Pixels,
1626 em_width: Pixels,
1627 em_advance: Pixels,
1628 autoscroll_containing_element: bool,
1629 window: &mut Window,
1630 cx: &mut App,
1631 ) -> Vec<CursorLayout> {
1632 let mut autoscroll_bounds = None;
1633 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1634 let mut cursors = Vec::new();
1635
1636 let show_local_cursors = editor.show_local_cursors(window, cx);
1637
1638 for (player_color, selections) in selections {
1639 for selection in selections {
1640 let cursor_position = selection.head;
1641
1642 let in_range = visible_display_row_range.contains(&cursor_position.row());
1643 if (selection.is_local && !show_local_cursors)
1644 || !in_range
1645 || row_block_types.get(&cursor_position.row()) == Some(&true)
1646 {
1647 continue;
1648 }
1649
1650 let cursor_row_layout = &line_layouts
1651 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1652 let cursor_column = cursor_position.column() as usize;
1653
1654 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1655 let mut block_width =
1656 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1657 if block_width == Pixels::ZERO {
1658 block_width = em_advance;
1659 }
1660 let block_text = if let CursorShape::Block = selection.cursor_shape {
1661 snapshot
1662 .grapheme_at(cursor_position)
1663 .or_else(|| {
1664 if snapshot.is_empty() {
1665 snapshot.placeholder_text().and_then(|s| {
1666 s.graphemes(true).next().map(|s| s.to_string().into())
1667 })
1668 } else {
1669 None
1670 }
1671 })
1672 .map(|text| {
1673 let len = text.len();
1674
1675 let mut font = cursor_row_layout
1676 .font_id_for_index(cursor_column)
1677 .and_then(|cursor_font_id| {
1678 window.text_system().get_font_for_id(cursor_font_id)
1679 })
1680 .unwrap_or(self.style.text.font());
1681 font.features = self.style.text.font_features.clone();
1682
1683 // Invert the text color for the block cursor. Ensure that the text
1684 // color is opaque enough to be visible against the background color.
1685 //
1686 // 0.75 is an arbitrary threshold to determine if the background color is
1687 // opaque enough to use as a text color.
1688 //
1689 // TODO: In the future we should ensure themes have a `text_inverse` color.
1690 let color = if cx.theme().colors().editor_background.a < 0.75 {
1691 match cx.theme().appearance {
1692 Appearance::Dark => Hsla::black(),
1693 Appearance::Light => Hsla::white(),
1694 }
1695 } else {
1696 cx.theme().colors().editor_background
1697 };
1698
1699 window.text_system().shape_line(
1700 text,
1701 cursor_row_layout.font_size,
1702 &[TextRun {
1703 len,
1704 font,
1705 color,
1706 ..Default::default()
1707 }],
1708 None,
1709 )
1710 })
1711 } else {
1712 None
1713 };
1714
1715 let x = cursor_character_x - scroll_pixel_position.x.into();
1716 let y = ((cursor_position.row().as_f64() - scroll_position.y)
1717 * ScrollPixelOffset::from(line_height))
1718 .into();
1719 if selection.is_newest {
1720 editor.pixel_position_of_newest_cursor = Some(point(
1721 text_hitbox.origin.x + x + block_width / 2.,
1722 text_hitbox.origin.y + y + line_height / 2.,
1723 ));
1724
1725 if autoscroll_containing_element {
1726 let top = text_hitbox.origin.y
1727 + ((cursor_position.row().as_f64() - scroll_position.y - 3.)
1728 .max(0.)
1729 * ScrollPixelOffset::from(line_height))
1730 .into();
1731 let left = text_hitbox.origin.x
1732 + ((cursor_position.column() as ScrollOffset
1733 - scroll_position.x
1734 - 3.)
1735 .max(0.)
1736 * ScrollPixelOffset::from(em_width))
1737 .into();
1738
1739 let bottom = text_hitbox.origin.y
1740 + ((cursor_position.row().as_f64() - scroll_position.y + 4.)
1741 * ScrollPixelOffset::from(line_height))
1742 .into();
1743 let right = text_hitbox.origin.x
1744 + ((cursor_position.column() as ScrollOffset - scroll_position.x
1745 + 4.)
1746 * ScrollPixelOffset::from(em_width))
1747 .into();
1748
1749 autoscroll_bounds =
1750 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1751 }
1752 }
1753
1754 let mut cursor = CursorLayout {
1755 color: player_color.cursor,
1756 block_width,
1757 origin: point(x, y),
1758 line_height,
1759 shape: selection.cursor_shape,
1760 block_text,
1761 cursor_name: None,
1762 };
1763 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1764 string: name,
1765 color: self.style.background,
1766 is_top_row: cursor_position.row().0 == 0,
1767 });
1768 cursor.layout(content_origin, cursor_name, window, cx);
1769 cursors.push(cursor);
1770 }
1771 }
1772
1773 cursors
1774 });
1775
1776 if let Some(bounds) = autoscroll_bounds {
1777 window.request_autoscroll(bounds);
1778 }
1779
1780 cursor_layouts
1781 }
1782
1783 fn layout_scrollbars(
1784 &self,
1785 snapshot: &EditorSnapshot,
1786 scrollbar_layout_information: &ScrollbarLayoutInformation,
1787 content_offset: gpui::Point<Pixels>,
1788 scroll_position: gpui::Point<ScrollOffset>,
1789 non_visible_cursors: bool,
1790 right_margin: Pixels,
1791 editor_width: Pixels,
1792 window: &mut Window,
1793 cx: &mut App,
1794 ) -> Option<EditorScrollbars> {
1795 let show_scrollbars = self.editor.read(cx).show_scrollbars;
1796 if (!show_scrollbars.horizontal && !show_scrollbars.vertical)
1797 || self.style.scrollbar_width.is_zero()
1798 {
1799 return None;
1800 }
1801
1802 // If a drag took place after we started dragging the scrollbar,
1803 // cancel the scrollbar drag.
1804 if cx.has_active_drag() {
1805 self.editor.update(cx, |editor, cx| {
1806 editor.scroll_manager.reset_scrollbar_state(cx)
1807 });
1808 }
1809
1810 let editor_settings = EditorSettings::get_global(cx);
1811 let scrollbar_settings = editor_settings.scrollbar;
1812 let show_scrollbars = match scrollbar_settings.show {
1813 ShowScrollbar::Auto => {
1814 let editor = self.editor.read(cx);
1815 let is_singleton = editor.buffer_kind(cx) == ItemBufferKind::Singleton;
1816 // Git
1817 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot().has_diff_hunks())
1818 ||
1819 // Buffer Search Results
1820 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1821 ||
1822 // Selected Text Occurrences
1823 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1824 ||
1825 // Selected Symbol Occurrences
1826 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1827 ||
1828 // Diagnostics
1829 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot().has_diagnostics())
1830 ||
1831 // Cursors out of sight
1832 non_visible_cursors
1833 ||
1834 // Scrollmanager
1835 editor.scroll_manager.scrollbars_visible()
1836 }
1837 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1838 ShowScrollbar::Always => true,
1839 ShowScrollbar::Never => return None,
1840 };
1841
1842 // The horizontal scrollbar is usually slightly offset to align nicely with
1843 // indent guides. However, this offset is not needed if indent guides are
1844 // disabled for the current editor.
1845 let content_offset = self
1846 .editor
1847 .read(cx)
1848 .show_indent_guides
1849 .is_none_or(|should_show| should_show)
1850 .then_some(content_offset)
1851 .unwrap_or_default();
1852
1853 Some(EditorScrollbars::from_scrollbar_axes(
1854 ScrollbarAxes {
1855 horizontal: scrollbar_settings.axes.horizontal
1856 && self.editor.read(cx).show_scrollbars.horizontal,
1857 vertical: scrollbar_settings.axes.vertical
1858 && self.editor.read(cx).show_scrollbars.vertical,
1859 },
1860 scrollbar_layout_information,
1861 content_offset,
1862 scroll_position,
1863 self.style.scrollbar_width,
1864 right_margin,
1865 editor_width,
1866 show_scrollbars,
1867 self.editor.read(cx).scroll_manager.active_scrollbar_state(),
1868 window,
1869 ))
1870 }
1871
1872 fn layout_minimap(
1873 &self,
1874 snapshot: &EditorSnapshot,
1875 minimap_width: Pixels,
1876 scroll_position: gpui::Point<f64>,
1877 scrollbar_layout_information: &ScrollbarLayoutInformation,
1878 scrollbar_layout: Option<&EditorScrollbars>,
1879 window: &mut Window,
1880 cx: &mut App,
1881 ) -> Option<MinimapLayout> {
1882 let minimap_editor = self.editor.read(cx).minimap().cloned()?;
1883
1884 let minimap_settings = EditorSettings::get_global(cx).minimap;
1885
1886 if minimap_settings.on_active_editor() {
1887 let active_editor = self.editor.read(cx).workspace().and_then(|ws| {
1888 ws.read(cx)
1889 .active_pane()
1890 .read(cx)
1891 .active_item()
1892 .and_then(|i| i.act_as::<Editor>(cx))
1893 });
1894 if active_editor.is_some_and(|e| e != self.editor) {
1895 return None;
1896 }
1897 }
1898
1899 if !snapshot.mode.is_full()
1900 || minimap_width.is_zero()
1901 || matches!(
1902 minimap_settings.show,
1903 ShowMinimap::Auto if scrollbar_layout.is_none_or(|layout| !layout.visible)
1904 )
1905 {
1906 return None;
1907 }
1908
1909 const MINIMAP_AXIS: ScrollbarAxis = ScrollbarAxis::Vertical;
1910
1911 let ScrollbarLayoutInformation {
1912 editor_bounds,
1913 scroll_range,
1914 glyph_grid_cell,
1915 } = scrollbar_layout_information;
1916
1917 let line_height = glyph_grid_cell.height;
1918 let scroll_position = scroll_position.along(MINIMAP_AXIS);
1919
1920 let top_right_anchor = scrollbar_layout
1921 .and_then(|layout| layout.vertical.as_ref())
1922 .map(|vertical_scrollbar| vertical_scrollbar.hitbox.origin)
1923 .unwrap_or_else(|| editor_bounds.top_right());
1924
1925 let thumb_state = self
1926 .editor
1927 .read_with(cx, |editor, _| editor.scroll_manager.minimap_thumb_state());
1928
1929 let show_thumb = match minimap_settings.thumb {
1930 MinimapThumb::Always => true,
1931 MinimapThumb::Hover => thumb_state.is_some(),
1932 };
1933
1934 let minimap_bounds = Bounds::from_corner_and_size(
1935 Corner::TopRight,
1936 top_right_anchor,
1937 size(minimap_width, editor_bounds.size.height),
1938 );
1939 let minimap_line_height = self.get_minimap_line_height(
1940 minimap_editor
1941 .read(cx)
1942 .text_style_refinement
1943 .as_ref()
1944 .and_then(|refinement| refinement.font_size)
1945 .unwrap_or(MINIMAP_FONT_SIZE),
1946 window,
1947 cx,
1948 );
1949 let minimap_height = minimap_bounds.size.height;
1950
1951 let visible_editor_lines = (editor_bounds.size.height / line_height) as f64;
1952 let total_editor_lines = (scroll_range.height / line_height) as f64;
1953 let minimap_lines = (minimap_height / minimap_line_height) as f64;
1954
1955 let minimap_scroll_top = MinimapLayout::calculate_minimap_top_offset(
1956 total_editor_lines,
1957 visible_editor_lines,
1958 minimap_lines,
1959 scroll_position,
1960 );
1961
1962 let layout = ScrollbarLayout::for_minimap(
1963 window.insert_hitbox(minimap_bounds, HitboxBehavior::Normal),
1964 visible_editor_lines,
1965 total_editor_lines,
1966 minimap_line_height,
1967 scroll_position,
1968 minimap_scroll_top,
1969 show_thumb,
1970 )
1971 .with_thumb_state(thumb_state);
1972
1973 minimap_editor.update(cx, |editor, cx| {
1974 editor.set_scroll_position(point(0., minimap_scroll_top), window, cx)
1975 });
1976
1977 // Required for the drop shadow to be visible
1978 const PADDING_OFFSET: Pixels = px(4.);
1979
1980 let mut minimap = div()
1981 .size_full()
1982 .shadow_xs()
1983 .px(PADDING_OFFSET)
1984 .child(minimap_editor)
1985 .into_any_element();
1986
1987 let extended_bounds = minimap_bounds.extend(Edges {
1988 right: PADDING_OFFSET,
1989 left: PADDING_OFFSET,
1990 ..Default::default()
1991 });
1992 minimap.layout_as_root(extended_bounds.size.into(), window, cx);
1993 window.with_absolute_element_offset(extended_bounds.origin, |window| {
1994 minimap.prepaint(window, cx)
1995 });
1996
1997 Some(MinimapLayout {
1998 minimap,
1999 thumb_layout: layout,
2000 thumb_border_style: minimap_settings.thumb_border,
2001 minimap_line_height,
2002 minimap_scroll_top,
2003 max_scroll_top: total_editor_lines,
2004 })
2005 }
2006
2007 fn get_minimap_line_height(
2008 &self,
2009 font_size: AbsoluteLength,
2010 window: &mut Window,
2011 cx: &mut App,
2012 ) -> Pixels {
2013 let rem_size = self.rem_size(cx).unwrap_or(window.rem_size());
2014 let mut text_style = self.style.text.clone();
2015 text_style.font_size = font_size;
2016 text_style.line_height_in_pixels(rem_size)
2017 }
2018
2019 fn get_minimap_width(
2020 &self,
2021 minimap_settings: &Minimap,
2022 scrollbars_shown: bool,
2023 text_width: Pixels,
2024 em_width: Pixels,
2025 font_size: Pixels,
2026 rem_size: Pixels,
2027 cx: &App,
2028 ) -> Option<Pixels> {
2029 if minimap_settings.show == ShowMinimap::Auto && !scrollbars_shown {
2030 return None;
2031 }
2032
2033 let minimap_font_size = self.editor.read_with(cx, |editor, cx| {
2034 editor.minimap().map(|minimap_editor| {
2035 minimap_editor
2036 .read(cx)
2037 .text_style_refinement
2038 .as_ref()
2039 .and_then(|refinement| refinement.font_size)
2040 .unwrap_or(MINIMAP_FONT_SIZE)
2041 })
2042 })?;
2043
2044 let minimap_em_width = em_width * (minimap_font_size.to_pixels(rem_size) / font_size);
2045
2046 let minimap_width = (text_width * MinimapLayout::MINIMAP_WIDTH_PCT)
2047 .min(minimap_em_width * minimap_settings.max_width_columns.get() as f32);
2048
2049 (minimap_width >= minimap_em_width * MinimapLayout::MINIMAP_MIN_WIDTH_COLUMNS)
2050 .then_some(minimap_width)
2051 }
2052
2053 fn prepaint_crease_toggles(
2054 &self,
2055 crease_toggles: &mut [Option<AnyElement>],
2056 line_height: Pixels,
2057 gutter_dimensions: &GutterDimensions,
2058 gutter_settings: crate::editor_settings::Gutter,
2059 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2060 gutter_hitbox: &Hitbox,
2061 window: &mut Window,
2062 cx: &mut App,
2063 ) {
2064 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
2065 if let Some(crease_toggle) = crease_toggle {
2066 debug_assert!(gutter_settings.folds);
2067 let available_space = size(
2068 AvailableSpace::MinContent,
2069 AvailableSpace::Definite(line_height * 0.55),
2070 );
2071 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
2072
2073 let position = point(
2074 gutter_dimensions.width - gutter_dimensions.right_padding,
2075 ix as f32 * line_height
2076 - (scroll_pixel_position.y % ScrollPixelOffset::from(line_height)).into(),
2077 );
2078 let centering_offset = point(
2079 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
2080 (line_height - crease_toggle_size.height) / 2.,
2081 );
2082 let origin = gutter_hitbox.origin + position + centering_offset;
2083 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
2084 }
2085 }
2086 }
2087
2088 fn prepaint_expand_toggles(
2089 &self,
2090 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
2091 window: &mut Window,
2092 cx: &mut App,
2093 ) {
2094 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
2095 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
2096 expand_toggle.layout_as_root(available_space, window, cx);
2097 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
2098 }
2099 }
2100
2101 fn prepaint_crease_trailers(
2102 &self,
2103 trailers: Vec<Option<AnyElement>>,
2104 lines: &[LineWithInvisibles],
2105 line_height: Pixels,
2106 content_origin: gpui::Point<Pixels>,
2107 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2108 em_width: Pixels,
2109 window: &mut Window,
2110 cx: &mut App,
2111 ) -> Vec<Option<CreaseTrailerLayout>> {
2112 trailers
2113 .into_iter()
2114 .enumerate()
2115 .map(|(ix, element)| {
2116 let mut element = element?;
2117 let available_space = size(
2118 AvailableSpace::MinContent,
2119 AvailableSpace::Definite(line_height),
2120 );
2121 let size = element.layout_as_root(available_space, window, cx);
2122
2123 let line = &lines[ix];
2124 let padding = if line.width == Pixels::ZERO {
2125 Pixels::ZERO
2126 } else {
2127 4. * em_width
2128 };
2129 let position = point(
2130 Pixels::from(scroll_pixel_position.x) + line.width + padding,
2131 ix as f32 * line_height
2132 - (scroll_pixel_position.y % ScrollPixelOffset::from(line_height)).into(),
2133 );
2134 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
2135 let origin = content_origin + position + centering_offset;
2136 element.prepaint_as_root(origin, available_space, window, cx);
2137 Some(CreaseTrailerLayout {
2138 element,
2139 bounds: Bounds::new(origin, size),
2140 })
2141 })
2142 .collect()
2143 }
2144
2145 // Folds contained in a hunk are ignored apart from shrinking visual size
2146 // If a fold contains any hunks then that fold line is marked as modified
2147 fn layout_gutter_diff_hunks(
2148 &self,
2149 line_height: Pixels,
2150 gutter_hitbox: &Hitbox,
2151 display_rows: Range<DisplayRow>,
2152 snapshot: &EditorSnapshot,
2153 window: &mut Window,
2154 cx: &mut App,
2155 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
2156 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
2157 let mut display_hunks = snapshot
2158 .display_diff_hunks_for_rows(display_rows, folded_buffers)
2159 .map(|hunk| (hunk, None))
2160 .collect::<Vec<_>>();
2161 let git_gutter_setting = ProjectSettings::get_global(cx).git.git_gutter;
2162 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
2163 for (hunk, hitbox) in &mut display_hunks {
2164 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
2165 let hunk_bounds =
2166 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
2167 *hitbox = Some(window.insert_hitbox(hunk_bounds, HitboxBehavior::BlockMouse));
2168 }
2169 }
2170 }
2171
2172 display_hunks
2173 }
2174
2175 fn layout_inline_diagnostics(
2176 &self,
2177 line_layouts: &[LineWithInvisibles],
2178 crease_trailers: &[Option<CreaseTrailerLayout>],
2179 row_block_types: &HashMap<DisplayRow, bool>,
2180 content_origin: gpui::Point<Pixels>,
2181 scroll_position: gpui::Point<ScrollOffset>,
2182 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2183 edit_prediction_popover_origin: Option<gpui::Point<Pixels>>,
2184 start_row: DisplayRow,
2185 end_row: DisplayRow,
2186 line_height: Pixels,
2187 em_width: Pixels,
2188 style: &EditorStyle,
2189 window: &mut Window,
2190 cx: &mut App,
2191 ) -> HashMap<DisplayRow, AnyElement> {
2192 let max_severity = match self
2193 .editor
2194 .read(cx)
2195 .inline_diagnostics_enabled()
2196 .then(|| {
2197 ProjectSettings::get_global(cx)
2198 .diagnostics
2199 .inline
2200 .max_severity
2201 .unwrap_or_else(|| self.editor.read(cx).diagnostics_max_severity)
2202 .into_lsp()
2203 })
2204 .flatten()
2205 {
2206 Some(max_severity) => max_severity,
2207 None => return HashMap::default(),
2208 };
2209
2210 let active_diagnostics_group =
2211 if let ActiveDiagnostic::Group(group) = &self.editor.read(cx).active_diagnostics {
2212 Some(group.group_id)
2213 } else {
2214 None
2215 };
2216
2217 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
2218 let snapshot = editor.snapshot(window, cx);
2219 editor
2220 .inline_diagnostics
2221 .iter()
2222 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
2223 .filter(|(_, diagnostic)| match active_diagnostics_group {
2224 Some(active_diagnostics_group) => {
2225 // Active diagnostics are all shown in the editor already, no need to display them inline
2226 diagnostic.group_id != active_diagnostics_group
2227 }
2228 None => true,
2229 })
2230 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
2231 .skip_while(|(point, _)| point.row() < start_row)
2232 .take_while(|(point, _)| point.row() < end_row)
2233 .filter(|(point, _)| !row_block_types.contains_key(&point.row()))
2234 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
2235 acc.entry(point.row())
2236 .or_insert_with(Vec::new)
2237 .push(diagnostic);
2238 acc
2239 })
2240 });
2241
2242 if diagnostics_by_rows.is_empty() {
2243 return HashMap::default();
2244 }
2245
2246 let severity_to_color = |sev: &lsp::DiagnosticSeverity| match sev {
2247 &lsp::DiagnosticSeverity::ERROR => Color::Error,
2248 &lsp::DiagnosticSeverity::WARNING => Color::Warning,
2249 &lsp::DiagnosticSeverity::INFORMATION => Color::Info,
2250 &lsp::DiagnosticSeverity::HINT => Color::Hint,
2251 _ => Color::Error,
2252 };
2253
2254 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
2255 let min_x = self.column_pixels(
2256 ProjectSettings::get_global(cx)
2257 .diagnostics
2258 .inline
2259 .min_column as usize,
2260 window,
2261 );
2262
2263 let mut elements = HashMap::default();
2264 for (row, mut diagnostics) in diagnostics_by_rows {
2265 diagnostics.sort_by_key(|diagnostic| {
2266 (
2267 diagnostic.severity,
2268 std::cmp::Reverse(diagnostic.is_primary),
2269 diagnostic.start.row,
2270 diagnostic.start.column,
2271 )
2272 });
2273
2274 let Some(diagnostic_to_render) = diagnostics
2275 .iter()
2276 .find(|diagnostic| diagnostic.is_primary)
2277 .or_else(|| diagnostics.first())
2278 else {
2279 continue;
2280 };
2281
2282 let pos_y = content_origin.y + line_height * (row.0 as f64 - scroll_position.y) as f32;
2283
2284 let window_ix = row.0.saturating_sub(start_row.0) as usize;
2285 let pos_x = {
2286 let crease_trailer_layout = &crease_trailers[window_ix];
2287 let line_layout = &line_layouts[window_ix];
2288
2289 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
2290 crease_trailer.bounds.right()
2291 } else {
2292 Pixels::from(
2293 ScrollPixelOffset::from(content_origin.x + line_layout.width)
2294 - scroll_pixel_position.x,
2295 )
2296 };
2297
2298 let padded_line = line_end + padding;
2299 let min_start = Pixels::from(
2300 ScrollPixelOffset::from(content_origin.x + min_x) - scroll_pixel_position.x,
2301 );
2302
2303 cmp::max(padded_line, min_start)
2304 };
2305
2306 let behind_edit_prediction_popover = edit_prediction_popover_origin
2307 .as_ref()
2308 .is_some_and(|edit_prediction_popover_origin| {
2309 (pos_y..pos_y + line_height).contains(&edit_prediction_popover_origin.y)
2310 });
2311 let opacity = if behind_edit_prediction_popover {
2312 0.5
2313 } else {
2314 1.0
2315 };
2316
2317 let mut element = h_flex()
2318 .id(("diagnostic", row.0))
2319 .h(line_height)
2320 .w_full()
2321 .px_1()
2322 .rounded_xs()
2323 .opacity(opacity)
2324 .bg(severity_to_color(&diagnostic_to_render.severity)
2325 .color(cx)
2326 .opacity(0.05))
2327 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
2328 .text_sm()
2329 .font_family(style.text.font().family)
2330 .child(diagnostic_to_render.message.clone())
2331 .into_any();
2332
2333 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
2334
2335 elements.insert(row, element);
2336 }
2337
2338 elements
2339 }
2340
2341 fn layout_inline_code_actions(
2342 &self,
2343 display_point: DisplayPoint,
2344 content_origin: gpui::Point<Pixels>,
2345 scroll_position: gpui::Point<ScrollOffset>,
2346 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2347 line_height: Pixels,
2348 snapshot: &EditorSnapshot,
2349 window: &mut Window,
2350 cx: &mut App,
2351 ) -> Option<AnyElement> {
2352 if !snapshot
2353 .show_code_actions
2354 .unwrap_or(EditorSettings::get_global(cx).inline_code_actions)
2355 {
2356 return None;
2357 }
2358
2359 let icon_size = ui::IconSize::XSmall;
2360 let mut button = self.editor.update(cx, |editor, cx| {
2361 editor.available_code_actions.as_ref()?;
2362 let active = editor
2363 .context_menu
2364 .borrow()
2365 .as_ref()
2366 .and_then(|menu| {
2367 if let crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2368 deployed_from,
2369 ..
2370 }) = menu
2371 {
2372 deployed_from.as_ref()
2373 } else {
2374 None
2375 }
2376 })
2377 .is_some_and(|source| matches!(source, CodeActionSource::Indicator(..)));
2378 Some(editor.render_inline_code_actions(icon_size, display_point.row(), active, cx))
2379 })?;
2380
2381 let buffer_point = display_point.to_point(&snapshot.display_snapshot);
2382
2383 // do not show code action for folded line
2384 if snapshot.is_line_folded(MultiBufferRow(buffer_point.row)) {
2385 return None;
2386 }
2387
2388 // do not show code action for blank line with cursor
2389 let line_indent = snapshot
2390 .display_snapshot
2391 .buffer_snapshot()
2392 .line_indent_for_row(MultiBufferRow(buffer_point.row));
2393 if line_indent.is_line_blank() {
2394 return None;
2395 }
2396
2397 const INLINE_SLOT_CHAR_LIMIT: u32 = 4;
2398 const MAX_ALTERNATE_DISTANCE: u32 = 8;
2399
2400 let excerpt_id = snapshot
2401 .display_snapshot
2402 .buffer_snapshot()
2403 .excerpt_containing(buffer_point..buffer_point)
2404 .map(|excerpt| excerpt.id());
2405
2406 let is_valid_row = |row_candidate: u32| -> bool {
2407 // move to other row if folded row
2408 if snapshot.is_line_folded(MultiBufferRow(row_candidate)) {
2409 return false;
2410 }
2411 if buffer_point.row == row_candidate {
2412 // move to other row if cursor is in slot
2413 if buffer_point.column < INLINE_SLOT_CHAR_LIMIT {
2414 return false;
2415 }
2416 } else {
2417 let candidate_point = MultiBufferPoint {
2418 row: row_candidate,
2419 column: 0,
2420 };
2421 let candidate_excerpt_id = snapshot
2422 .display_snapshot
2423 .buffer_snapshot()
2424 .excerpt_containing(candidate_point..candidate_point)
2425 .map(|excerpt| excerpt.id());
2426 // move to other row if different excerpt
2427 if excerpt_id != candidate_excerpt_id {
2428 return false;
2429 }
2430 }
2431 let line_indent = snapshot
2432 .display_snapshot
2433 .buffer_snapshot()
2434 .line_indent_for_row(MultiBufferRow(row_candidate));
2435 // use this row if it's blank
2436 if line_indent.is_line_blank() {
2437 true
2438 } else {
2439 // use this row if code starts after slot
2440 let indent_size = snapshot
2441 .display_snapshot
2442 .buffer_snapshot()
2443 .indent_size_for_line(MultiBufferRow(row_candidate));
2444 indent_size.len >= INLINE_SLOT_CHAR_LIMIT
2445 }
2446 };
2447
2448 let new_buffer_row = if is_valid_row(buffer_point.row) {
2449 Some(buffer_point.row)
2450 } else {
2451 let max_row = snapshot.display_snapshot.buffer_snapshot().max_point().row;
2452 (1..=MAX_ALTERNATE_DISTANCE).find_map(|offset| {
2453 let row_above = buffer_point.row.saturating_sub(offset);
2454 let row_below = buffer_point.row + offset;
2455 if row_above != buffer_point.row && is_valid_row(row_above) {
2456 Some(row_above)
2457 } else if row_below <= max_row && is_valid_row(row_below) {
2458 Some(row_below)
2459 } else {
2460 None
2461 }
2462 })
2463 }?;
2464
2465 let new_display_row = snapshot
2466 .display_snapshot
2467 .point_to_display_point(
2468 Point {
2469 row: new_buffer_row,
2470 column: buffer_point.column,
2471 },
2472 text::Bias::Left,
2473 )
2474 .row();
2475
2476 let start_y = content_origin.y
2477 + (((new_display_row.as_f64() - scroll_position.y) as f32) * line_height)
2478 + (line_height / 2.0)
2479 - (icon_size.square(window, cx) / 2.);
2480 let start_x = (ScrollPixelOffset::from(content_origin.x) - scroll_pixel_position.x
2481 + ScrollPixelOffset::from(window.rem_size() * 0.1))
2482 .into();
2483
2484 let absolute_offset = gpui::point(start_x, start_y);
2485 button.layout_as_root(gpui::AvailableSpace::min_size(), window, cx);
2486 button.prepaint_as_root(
2487 absolute_offset,
2488 gpui::AvailableSpace::min_size(),
2489 window,
2490 cx,
2491 );
2492 Some(button)
2493 }
2494
2495 fn layout_inline_blame(
2496 &self,
2497 display_row: DisplayRow,
2498 row_info: &RowInfo,
2499 line_layout: &LineWithInvisibles,
2500 crease_trailer: Option<&CreaseTrailerLayout>,
2501 em_width: Pixels,
2502 content_origin: gpui::Point<Pixels>,
2503 scroll_position: gpui::Point<ScrollOffset>,
2504 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2505 line_height: Pixels,
2506 text_hitbox: &Hitbox,
2507 window: &mut Window,
2508 cx: &mut App,
2509 ) -> Option<InlineBlameLayout> {
2510 if !self
2511 .editor
2512 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
2513 {
2514 return None;
2515 }
2516
2517 let editor = self.editor.read(cx);
2518 let blame = editor.blame.clone()?;
2519 let padding = {
2520 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
2521
2522 let mut padding = ProjectSettings::get_global(cx).git.inline_blame.padding as f32;
2523
2524 if let Some(edit_prediction) = editor.active_edit_prediction.as_ref()
2525 && let EditPrediction::Edit {
2526 display_mode: EditDisplayMode::TabAccept,
2527 ..
2528 } = &edit_prediction.completion
2529 {
2530 padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS
2531 }
2532
2533 padding * em_width
2534 };
2535
2536 let (buffer_id, entry) = blame
2537 .update(cx, |blame, cx| {
2538 blame.blame_for_rows(&[*row_info], cx).next()
2539 })
2540 .flatten()?;
2541
2542 let mut element = render_inline_blame_entry(entry.clone(), &self.style, cx)?;
2543
2544 let start_y =
2545 content_origin.y + line_height * ((display_row.as_f64() - scroll_position.y) as f32);
2546
2547 let start_x = {
2548 let line_end = if let Some(crease_trailer) = crease_trailer {
2549 crease_trailer.bounds.right()
2550 } else {
2551 Pixels::from(
2552 ScrollPixelOffset::from(content_origin.x + line_layout.width)
2553 - scroll_pixel_position.x,
2554 )
2555 };
2556
2557 let padded_line_end = line_end + padding;
2558
2559 let min_column_in_pixels = self.column_pixels(
2560 ProjectSettings::get_global(cx).git.inline_blame.min_column as usize,
2561 window,
2562 );
2563 let min_start = Pixels::from(
2564 ScrollPixelOffset::from(content_origin.x + min_column_in_pixels)
2565 - scroll_pixel_position.x,
2566 );
2567
2568 cmp::max(padded_line_end, min_start)
2569 };
2570
2571 let absolute_offset = point(start_x, start_y);
2572 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2573 let bounds = Bounds::new(absolute_offset, size);
2574
2575 self.layout_blame_entry_popover(
2576 entry.clone(),
2577 blame,
2578 line_height,
2579 text_hitbox,
2580 row_info.buffer_id?,
2581 window,
2582 cx,
2583 );
2584
2585 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
2586
2587 Some(InlineBlameLayout {
2588 element,
2589 bounds,
2590 buffer_id,
2591 entry,
2592 })
2593 }
2594
2595 fn layout_blame_entry_popover(
2596 &self,
2597 blame_entry: BlameEntry,
2598 blame: Entity<GitBlame>,
2599 line_height: Pixels,
2600 text_hitbox: &Hitbox,
2601 buffer: BufferId,
2602 window: &mut Window,
2603 cx: &mut App,
2604 ) {
2605 let Some((popover_state, target_point)) = self.editor.read_with(cx, |editor, _| {
2606 editor
2607 .inline_blame_popover
2608 .as_ref()
2609 .map(|state| (state.popover_state.clone(), state.position))
2610 }) else {
2611 return;
2612 };
2613
2614 let workspace = self
2615 .editor
2616 .read_with(cx, |editor, _| editor.workspace().map(|w| w.downgrade()));
2617
2618 let maybe_element = workspace.and_then(|workspace| {
2619 render_blame_entry_popover(
2620 blame_entry,
2621 popover_state.scroll_handle,
2622 popover_state.commit_message,
2623 popover_state.markdown,
2624 workspace,
2625 &blame,
2626 buffer,
2627 window,
2628 cx,
2629 )
2630 });
2631
2632 if let Some(mut element) = maybe_element {
2633 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2634 let overall_height = size.height + HOVER_POPOVER_GAP;
2635 let popover_origin = if target_point.y > overall_height {
2636 point(target_point.x, target_point.y - size.height)
2637 } else {
2638 point(
2639 target_point.x,
2640 target_point.y + line_height + HOVER_POPOVER_GAP,
2641 )
2642 };
2643
2644 let horizontal_offset = (text_hitbox.top_right().x
2645 - POPOVER_RIGHT_OFFSET
2646 - (popover_origin.x + size.width))
2647 .min(Pixels::ZERO);
2648
2649 let origin = point(popover_origin.x + horizontal_offset, popover_origin.y);
2650 let popover_bounds = Bounds::new(origin, size);
2651
2652 self.editor.update(cx, |editor, _| {
2653 if let Some(state) = &mut editor.inline_blame_popover {
2654 state.popover_bounds = Some(popover_bounds);
2655 }
2656 });
2657
2658 window.defer_draw(element, origin, 2);
2659 }
2660 }
2661
2662 fn layout_blame_entries(
2663 &self,
2664 buffer_rows: &[RowInfo],
2665 em_width: Pixels,
2666 scroll_position: gpui::Point<ScrollOffset>,
2667 line_height: Pixels,
2668 gutter_hitbox: &Hitbox,
2669 max_width: Option<Pixels>,
2670 window: &mut Window,
2671 cx: &mut App,
2672 ) -> Option<Vec<AnyElement>> {
2673 if !self
2674 .editor
2675 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
2676 {
2677 return None;
2678 }
2679
2680 let blame = self.editor.read(cx).blame.clone()?;
2681 let workspace = self.editor.read(cx).workspace()?;
2682 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
2683 blame.blame_for_rows(buffer_rows, cx).collect()
2684 });
2685
2686 let width = if let Some(max_width) = max_width {
2687 AvailableSpace::Definite(max_width)
2688 } else {
2689 AvailableSpace::MaxContent
2690 };
2691 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
2692 let start_x = em_width;
2693
2694 let mut last_used_color: Option<(Hsla, Oid)> = None;
2695 let blame_renderer = cx.global::<GlobalBlameRenderer>().0.clone();
2696
2697 let shaped_lines = blamed_rows
2698 .into_iter()
2699 .enumerate()
2700 .flat_map(|(ix, blame_entry)| {
2701 let (buffer_id, blame_entry) = blame_entry?;
2702 let mut element = render_blame_entry(
2703 ix,
2704 &blame,
2705 blame_entry,
2706 &self.style,
2707 &mut last_used_color,
2708 self.editor.clone(),
2709 workspace.clone(),
2710 buffer_id,
2711 &*blame_renderer,
2712 window,
2713 cx,
2714 )?;
2715
2716 let start_y = ix as f32 * line_height
2717 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height));
2718 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
2719
2720 element.prepaint_as_root(
2721 absolute_offset,
2722 size(width, AvailableSpace::MinContent),
2723 window,
2724 cx,
2725 );
2726
2727 Some(element)
2728 })
2729 .collect();
2730
2731 Some(shaped_lines)
2732 }
2733
2734 fn layout_indent_guides(
2735 &self,
2736 content_origin: gpui::Point<Pixels>,
2737 text_origin: gpui::Point<Pixels>,
2738 visible_buffer_range: Range<MultiBufferRow>,
2739 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
2740 line_height: Pixels,
2741 snapshot: &DisplaySnapshot,
2742 window: &mut Window,
2743 cx: &mut App,
2744 ) -> Option<Vec<IndentGuideLayout>> {
2745 let indent_guides = self.editor.update(cx, |editor, cx| {
2746 editor.indent_guides(visible_buffer_range, snapshot, cx)
2747 })?;
2748
2749 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
2750 editor
2751 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
2752 .unwrap_or_default()
2753 });
2754
2755 Some(
2756 indent_guides
2757 .into_iter()
2758 .enumerate()
2759 .filter_map(|(i, indent_guide)| {
2760 let single_indent_width =
2761 self.column_pixels(indent_guide.tab_size as usize, window);
2762 let total_width = single_indent_width * indent_guide.depth as f32;
2763 let start_x = Pixels::from(
2764 ScrollOffset::from(content_origin.x + total_width)
2765 - scroll_pixel_position.x,
2766 );
2767 if start_x >= text_origin.x {
2768 let (offset_y, length) = Self::calculate_indent_guide_bounds(
2769 indent_guide.start_row..indent_guide.end_row,
2770 line_height,
2771 snapshot,
2772 );
2773
2774 let start_y = Pixels::from(
2775 ScrollOffset::from(content_origin.y) + offset_y
2776 - scroll_pixel_position.y,
2777 );
2778
2779 Some(IndentGuideLayout {
2780 origin: point(start_x, start_y),
2781 length,
2782 single_indent_width,
2783 depth: indent_guide.depth,
2784 active: active_indent_guide_indices.contains(&i),
2785 settings: indent_guide.settings,
2786 })
2787 } else {
2788 None
2789 }
2790 })
2791 .collect(),
2792 )
2793 }
2794
2795 fn layout_wrap_guides(
2796 &self,
2797 em_advance: Pixels,
2798 scroll_position: gpui::Point<f64>,
2799 content_origin: gpui::Point<Pixels>,
2800 scrollbar_layout: Option<&EditorScrollbars>,
2801 vertical_scrollbar_width: Pixels,
2802 hitbox: &Hitbox,
2803 window: &Window,
2804 cx: &App,
2805 ) -> SmallVec<[(Pixels, bool); 2]> {
2806 let scroll_left = scroll_position.x as f32 * em_advance;
2807 let content_origin = content_origin.x;
2808 let horizontal_offset = content_origin - scroll_left;
2809 let vertical_scrollbar_width = scrollbar_layout
2810 .and_then(|layout| layout.visible.then_some(vertical_scrollbar_width))
2811 .unwrap_or_default();
2812
2813 self.editor
2814 .read(cx)
2815 .wrap_guides(cx)
2816 .into_iter()
2817 .flat_map(|(guide, active)| {
2818 let wrap_position = self.column_pixels(guide, window);
2819 let wrap_guide_x = wrap_position + horizontal_offset;
2820 let display_wrap_guide = wrap_guide_x >= content_origin
2821 && wrap_guide_x <= hitbox.bounds.right() - vertical_scrollbar_width;
2822
2823 display_wrap_guide.then_some((wrap_guide_x, active))
2824 })
2825 .collect()
2826 }
2827
2828 fn calculate_indent_guide_bounds(
2829 row_range: Range<MultiBufferRow>,
2830 line_height: Pixels,
2831 snapshot: &DisplaySnapshot,
2832 ) -> (f64, gpui::Pixels) {
2833 let start_point = Point::new(row_range.start.0, 0);
2834 let end_point = Point::new(row_range.end.0, 0);
2835
2836 let row_range = start_point.to_display_point(snapshot).row()
2837 ..end_point.to_display_point(snapshot).row();
2838
2839 let mut prev_line = start_point;
2840 prev_line.row = prev_line.row.saturating_sub(1);
2841 let prev_line = prev_line.to_display_point(snapshot).row();
2842
2843 let mut cons_line = end_point;
2844 cons_line.row += 1;
2845 let cons_line = cons_line.to_display_point(snapshot).row();
2846
2847 let mut offset_y = row_range.start.as_f64() * f64::from(line_height);
2848 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
2849
2850 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
2851 if row_range.end == cons_line {
2852 length += line_height;
2853 }
2854
2855 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
2856 // we want to extend the indent guide to the start of the block.
2857 let mut block_height = 0;
2858 let mut block_offset = 0;
2859 let mut found_excerpt_header = false;
2860 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
2861 if matches!(
2862 block,
2863 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
2864 ) {
2865 found_excerpt_header = true;
2866 break;
2867 }
2868 block_offset += block.height();
2869 block_height += block.height();
2870 }
2871 if !found_excerpt_header {
2872 offset_y -= block_offset as f64 * f64::from(line_height);
2873 length += block_height as f32 * line_height;
2874 }
2875
2876 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
2877 // we want to ensure that the indent guide stops before the excerpt header.
2878 let mut block_height = 0;
2879 let mut found_excerpt_header = false;
2880 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
2881 if matches!(
2882 block,
2883 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
2884 ) {
2885 found_excerpt_header = true;
2886 }
2887 block_height += block.height();
2888 }
2889 if found_excerpt_header {
2890 length -= block_height as f32 * line_height;
2891 }
2892
2893 (offset_y, length)
2894 }
2895
2896 fn layout_breakpoints(
2897 &self,
2898 line_height: Pixels,
2899 range: Range<DisplayRow>,
2900 scroll_position: gpui::Point<ScrollOffset>,
2901 gutter_dimensions: &GutterDimensions,
2902 gutter_hitbox: &Hitbox,
2903 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2904 snapshot: &EditorSnapshot,
2905 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
2906 row_infos: &[RowInfo],
2907 window: &mut Window,
2908 cx: &mut App,
2909 ) -> Vec<AnyElement> {
2910 self.editor.update(cx, |editor, cx| {
2911 breakpoints
2912 .into_iter()
2913 .filter_map(|(display_row, (text_anchor, bp, state))| {
2914 if row_infos
2915 .get((display_row.0.saturating_sub(range.start.0)) as usize)
2916 .is_some_and(|row_info| {
2917 row_info.expand_info.is_some()
2918 || row_info
2919 .diff_status
2920 .is_some_and(|status| status.is_deleted())
2921 })
2922 {
2923 return None;
2924 }
2925
2926 if range.start > display_row || range.end < display_row {
2927 return None;
2928 }
2929
2930 let row =
2931 MultiBufferRow(DisplayPoint::new(display_row, 0).to_point(snapshot).row);
2932 if snapshot.is_line_folded(row) {
2933 return None;
2934 }
2935
2936 let button = editor.render_breakpoint(text_anchor, display_row, &bp, state, cx);
2937
2938 let button = prepaint_gutter_button(
2939 button,
2940 display_row,
2941 line_height,
2942 gutter_dimensions,
2943 scroll_position,
2944 gutter_hitbox,
2945 display_hunks,
2946 window,
2947 cx,
2948 );
2949 Some(button)
2950 })
2951 .collect_vec()
2952 })
2953 }
2954
2955 #[allow(clippy::too_many_arguments)]
2956 fn layout_run_indicators(
2957 &self,
2958 line_height: Pixels,
2959 range: Range<DisplayRow>,
2960 row_infos: &[RowInfo],
2961 scroll_position: gpui::Point<ScrollOffset>,
2962 gutter_dimensions: &GutterDimensions,
2963 gutter_hitbox: &Hitbox,
2964 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2965 snapshot: &EditorSnapshot,
2966 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
2967 window: &mut Window,
2968 cx: &mut App,
2969 ) -> Vec<AnyElement> {
2970 self.editor.update(cx, |editor, cx| {
2971 let active_task_indicator_row =
2972 // TODO: add edit button on the right side of each row in the context menu
2973 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2974 deployed_from,
2975 actions,
2976 ..
2977 })) = editor.context_menu.borrow().as_ref()
2978 {
2979 actions
2980 .tasks()
2981 .map(|tasks| tasks.position.to_display_point(snapshot).row())
2982 .or_else(|| match deployed_from {
2983 Some(CodeActionSource::Indicator(row)) => Some(*row),
2984 _ => None,
2985 })
2986 } else {
2987 None
2988 };
2989
2990 let offset_range_start =
2991 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
2992
2993 let offset_range_end =
2994 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
2995
2996 editor
2997 .tasks
2998 .iter()
2999 .filter_map(|(_, tasks)| {
3000 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot());
3001 if multibuffer_point < offset_range_start
3002 || multibuffer_point > offset_range_end
3003 {
3004 return None;
3005 }
3006 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
3007 let buffer_folded = snapshot
3008 .buffer_snapshot()
3009 .buffer_line_for_row(multibuffer_row)
3010 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
3011 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
3012 .unwrap_or(false);
3013 if buffer_folded {
3014 return None;
3015 }
3016
3017 if snapshot.is_line_folded(multibuffer_row) {
3018 // Skip folded indicators, unless it's the starting line of a fold.
3019 if multibuffer_row
3020 .0
3021 .checked_sub(1)
3022 .is_some_and(|previous_row| {
3023 snapshot.is_line_folded(MultiBufferRow(previous_row))
3024 })
3025 {
3026 return None;
3027 }
3028 }
3029
3030 let display_row = multibuffer_point.to_display_point(snapshot).row();
3031 if !range.contains(&display_row) {
3032 return None;
3033 }
3034 if row_infos
3035 .get((display_row - range.start).0 as usize)
3036 .is_some_and(|row_info| row_info.expand_info.is_some())
3037 {
3038 return None;
3039 }
3040
3041 let button = editor.render_run_indicator(
3042 &self.style,
3043 Some(display_row) == active_task_indicator_row,
3044 display_row,
3045 breakpoints.remove(&display_row),
3046 cx,
3047 );
3048
3049 let button = prepaint_gutter_button(
3050 button,
3051 display_row,
3052 line_height,
3053 gutter_dimensions,
3054 scroll_position,
3055 gutter_hitbox,
3056 display_hunks,
3057 window,
3058 cx,
3059 );
3060 Some(button)
3061 })
3062 .collect_vec()
3063 })
3064 }
3065
3066 fn layout_expand_toggles(
3067 &self,
3068 gutter_hitbox: &Hitbox,
3069 gutter_dimensions: GutterDimensions,
3070 em_width: Pixels,
3071 line_height: Pixels,
3072 scroll_position: gpui::Point<ScrollOffset>,
3073 buffer_rows: &[RowInfo],
3074 window: &mut Window,
3075 cx: &mut App,
3076 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
3077 if self.editor.read(cx).disable_expand_excerpt_buttons {
3078 return vec![];
3079 }
3080
3081 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
3082
3083 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
3084
3085 let max_line_number_length = self
3086 .editor
3087 .read(cx)
3088 .buffer()
3089 .read(cx)
3090 .snapshot(cx)
3091 .widest_line_number()
3092 .ilog10()
3093 + 1;
3094
3095 let git_gutter_width = Self::gutter_strip_width(line_height)
3096 + gutter_dimensions
3097 .git_blame_entries_width
3098 .unwrap_or_default();
3099 let available_width = gutter_dimensions.left_padding - git_gutter_width;
3100
3101 buffer_rows
3102 .iter()
3103 .enumerate()
3104 .map(|(ix, row_info)| {
3105 let ExpandInfo {
3106 excerpt_id,
3107 direction,
3108 } = row_info.expand_info?;
3109
3110 let icon_name = match direction {
3111 ExpandExcerptDirection::Up => IconName::ExpandUp,
3112 ExpandExcerptDirection::Down => IconName::ExpandDown,
3113 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
3114 };
3115
3116 let editor = self.editor.clone();
3117 let is_wide = max_line_number_length
3118 >= EditorSettings::get_global(cx).gutter.min_line_number_digits as u32
3119 && row_info
3120 .buffer_row
3121 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
3122 || gutter_dimensions.right_padding == px(0.);
3123
3124 let width = if is_wide {
3125 available_width - px(2.)
3126 } else {
3127 available_width + em_width - px(2.)
3128 };
3129
3130 let toggle = IconButton::new(("expand", ix), icon_name)
3131 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
3132 .selected_icon_color(Color::Custom(cx.theme().colors().editor_foreground))
3133 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
3134 .width(width)
3135 .on_click(move |_, window, cx| {
3136 editor.update(cx, |editor, cx| {
3137 editor.expand_excerpt(excerpt_id, direction, window, cx);
3138 });
3139 })
3140 .tooltip(Tooltip::for_action_title(
3141 "Expand Excerpt",
3142 &crate::actions::ExpandExcerpts::default(),
3143 ))
3144 .into_any_element();
3145
3146 let position = point(
3147 git_gutter_width + px(1.),
3148 ix as f32 * line_height
3149 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height))
3150 + px(1.),
3151 );
3152 let origin = gutter_hitbox.origin + position;
3153
3154 Some((toggle, origin))
3155 })
3156 .collect()
3157 }
3158
3159 fn calculate_relative_line_numbers(
3160 &self,
3161 snapshot: &EditorSnapshot,
3162 rows: &Range<DisplayRow>,
3163 relative_to: Option<DisplayRow>,
3164 count_wrapped_lines: bool,
3165 ) -> HashMap<DisplayRow, DisplayRowDelta> {
3166 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
3167 let Some(relative_to) = relative_to else {
3168 return relative_rows;
3169 };
3170
3171 let start = rows.start.min(relative_to);
3172 let end = rows.end.max(relative_to);
3173
3174 let buffer_rows = snapshot
3175 .row_infos(start)
3176 .take(1 + end.minus(start) as usize)
3177 .collect::<Vec<_>>();
3178
3179 let head_idx = relative_to.minus(start);
3180 let mut delta = 1;
3181 let mut i = head_idx + 1;
3182 let should_count_line = |row_info: &RowInfo| {
3183 if count_wrapped_lines {
3184 row_info.buffer_row.is_some() || row_info.wrapped_buffer_row.is_some()
3185 } else {
3186 row_info.buffer_row.is_some()
3187 }
3188 };
3189 while i < buffer_rows.len() as u32 {
3190 if should_count_line(&buffer_rows[i as usize]) {
3191 if rows.contains(&DisplayRow(i + start.0)) {
3192 relative_rows.insert(DisplayRow(i + start.0), delta);
3193 }
3194 delta += 1;
3195 }
3196 i += 1;
3197 }
3198 delta = 1;
3199 i = head_idx.min(buffer_rows.len().saturating_sub(1) as u32);
3200 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() && !count_wrapped_lines {
3201 i -= 1;
3202 }
3203
3204 while i > 0 {
3205 i -= 1;
3206 if should_count_line(&buffer_rows[i as usize]) {
3207 if rows.contains(&DisplayRow(i + start.0)) {
3208 relative_rows.insert(DisplayRow(i + start.0), delta);
3209 }
3210 delta += 1;
3211 }
3212 }
3213
3214 relative_rows
3215 }
3216
3217 fn layout_line_numbers(
3218 &self,
3219 gutter_hitbox: Option<&Hitbox>,
3220 gutter_dimensions: GutterDimensions,
3221 line_height: Pixels,
3222 scroll_position: gpui::Point<ScrollOffset>,
3223 rows: Range<DisplayRow>,
3224 buffer_rows: &[RowInfo],
3225 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3226 newest_selection_head: Option<DisplayPoint>,
3227 snapshot: &EditorSnapshot,
3228 window: &mut Window,
3229 cx: &mut App,
3230 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
3231 let include_line_numbers = snapshot
3232 .show_line_numbers
3233 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
3234 if !include_line_numbers {
3235 return Arc::default();
3236 }
3237
3238 let (newest_selection_head, relative) = self.editor.update(cx, |editor, cx| {
3239 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
3240 let newest = editor
3241 .selections
3242 .newest::<Point>(&editor.display_snapshot(cx));
3243 SelectionLayout::new(
3244 newest,
3245 editor.selections.line_mode(),
3246 editor.cursor_shape,
3247 &snapshot.display_snapshot,
3248 true,
3249 true,
3250 None,
3251 )
3252 .head
3253 });
3254 let relative = editor.relative_line_numbers(cx);
3255 (newest_selection_head, relative)
3256 });
3257
3258 let relative_line_numbers_enabled = relative.enabled();
3259 let relative_to = relative_line_numbers_enabled.then(|| newest_selection_head.row());
3260
3261 let relative_rows =
3262 self.calculate_relative_line_numbers(snapshot, &rows, relative_to, relative.wrapped());
3263 let mut line_number = String::new();
3264 let segments = buffer_rows.iter().enumerate().flat_map(|(ix, row_info)| {
3265 let display_row = DisplayRow(rows.start.0 + ix as u32);
3266 line_number.clear();
3267 let non_relative_number = if relative.wrapped() {
3268 row_info.buffer_row.or(row_info.wrapped_buffer_row)? + 1
3269 } else {
3270 row_info.buffer_row? + 1
3271 };
3272 let relative_number = relative_rows.get(&display_row);
3273 if !(relative_line_numbers_enabled && relative_number.is_some())
3274 && row_info
3275 .diff_status
3276 .is_some_and(|status| status.is_deleted())
3277 {
3278 return None;
3279 }
3280
3281 let number = relative_number.unwrap_or(&non_relative_number);
3282 write!(&mut line_number, "{number}").unwrap();
3283
3284 let color = active_rows
3285 .get(&display_row)
3286 .map(|spec| {
3287 if spec.breakpoint {
3288 cx.theme().colors().debugger_accent
3289 } else {
3290 cx.theme().colors().editor_active_line_number
3291 }
3292 })
3293 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
3294 let shaped_line =
3295 self.shape_line_number(SharedString::from(&line_number), color, window);
3296 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
3297 let line_origin = gutter_hitbox.map(|hitbox| {
3298 hitbox.origin
3299 + point(
3300 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
3301 ix as f32 * line_height
3302 - Pixels::from(scroll_top % ScrollPixelOffset::from(line_height)),
3303 )
3304 });
3305
3306 #[cfg(not(test))]
3307 let hitbox = line_origin.map(|line_origin| {
3308 window.insert_hitbox(
3309 Bounds::new(line_origin, size(shaped_line.width, line_height)),
3310 HitboxBehavior::Normal,
3311 )
3312 });
3313 #[cfg(test)]
3314 let hitbox = {
3315 let _ = line_origin;
3316 None
3317 };
3318
3319 let segment = LineNumberSegment {
3320 shaped_line,
3321 hitbox,
3322 };
3323
3324 let buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
3325 let multi_buffer_row = MultiBufferRow(buffer_row);
3326
3327 Some((multi_buffer_row, segment))
3328 });
3329
3330 let mut line_numbers: HashMap<MultiBufferRow, LineNumberLayout> = HashMap::default();
3331 for (buffer_row, segment) in segments {
3332 line_numbers
3333 .entry(buffer_row)
3334 .or_insert_with(|| LineNumberLayout {
3335 segments: Default::default(),
3336 })
3337 .segments
3338 .push(segment);
3339 }
3340 Arc::new(line_numbers)
3341 }
3342
3343 fn layout_crease_toggles(
3344 &self,
3345 rows: Range<DisplayRow>,
3346 row_infos: &[RowInfo],
3347 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3348 snapshot: &EditorSnapshot,
3349 window: &mut Window,
3350 cx: &mut App,
3351 ) -> Vec<Option<AnyElement>> {
3352 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
3353 && snapshot.mode.is_full()
3354 && self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
3355 if include_fold_statuses {
3356 row_infos
3357 .iter()
3358 .enumerate()
3359 .map(|(ix, info)| {
3360 if info.expand_info.is_some() {
3361 return None;
3362 }
3363 let row = info.multibuffer_row?;
3364 let display_row = DisplayRow(rows.start.0 + ix as u32);
3365 let active = active_rows.contains_key(&display_row);
3366
3367 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
3368 })
3369 .collect()
3370 } else {
3371 Vec::new()
3372 }
3373 }
3374
3375 fn layout_crease_trailers(
3376 &self,
3377 buffer_rows: impl IntoIterator<Item = RowInfo>,
3378 snapshot: &EditorSnapshot,
3379 window: &mut Window,
3380 cx: &mut App,
3381 ) -> Vec<Option<AnyElement>> {
3382 buffer_rows
3383 .into_iter()
3384 .map(|row_info| {
3385 if row_info.expand_info.is_some() {
3386 return None;
3387 }
3388 if let Some(row) = row_info.multibuffer_row {
3389 snapshot.render_crease_trailer(row, window, cx)
3390 } else {
3391 None
3392 }
3393 })
3394 .collect()
3395 }
3396
3397 fn bg_segments_per_row(
3398 rows: Range<DisplayRow>,
3399 selections: &[(PlayerColor, Vec<SelectionLayout>)],
3400 highlight_ranges: &[(Range<DisplayPoint>, Hsla)],
3401 base_background: Hsla,
3402 ) -> Vec<Vec<(Range<DisplayPoint>, Hsla)>> {
3403 if rows.start >= rows.end {
3404 return Vec::new();
3405 }
3406 if !base_background.is_opaque() {
3407 // We don't actually know what color is behind this editor.
3408 return Vec::new();
3409 }
3410 let highlight_iter = highlight_ranges.iter().cloned();
3411 let selection_iter = selections.iter().flat_map(|(player_color, layouts)| {
3412 let color = player_color.selection;
3413 layouts.iter().filter_map(move |selection_layout| {
3414 if selection_layout.range.start != selection_layout.range.end {
3415 Some((selection_layout.range.clone(), color))
3416 } else {
3417 None
3418 }
3419 })
3420 });
3421 let mut per_row_map = vec![Vec::new(); rows.len()];
3422 for (range, color) in highlight_iter.chain(selection_iter) {
3423 let covered_rows = if range.end.column() == 0 {
3424 cmp::max(range.start.row(), rows.start)..cmp::min(range.end.row(), rows.end)
3425 } else {
3426 cmp::max(range.start.row(), rows.start)
3427 ..cmp::min(range.end.row().next_row(), rows.end)
3428 };
3429 for row in covered_rows.iter_rows() {
3430 let seg_start = if row == range.start.row() {
3431 range.start
3432 } else {
3433 DisplayPoint::new(row, 0)
3434 };
3435 let seg_end = if row == range.end.row() && range.end.column() != 0 {
3436 range.end
3437 } else {
3438 DisplayPoint::new(row, u32::MAX)
3439 };
3440 let ix = row.minus(rows.start) as usize;
3441 debug_assert!(row >= rows.start && row < rows.end);
3442 debug_assert!(ix < per_row_map.len());
3443 per_row_map[ix].push((seg_start..seg_end, color));
3444 }
3445 }
3446 for row_segments in per_row_map.iter_mut() {
3447 if row_segments.is_empty() {
3448 continue;
3449 }
3450 let segments = mem::take(row_segments);
3451 let merged = Self::merge_overlapping_ranges(segments, base_background);
3452 *row_segments = merged;
3453 }
3454 per_row_map
3455 }
3456
3457 /// Merge overlapping ranges by splitting at all range boundaries and blending colors where
3458 /// multiple ranges overlap. The result contains non-overlapping ranges ordered from left to right.
3459 ///
3460 /// Expects `start.row() == end.row()` for each range.
3461 fn merge_overlapping_ranges(
3462 ranges: Vec<(Range<DisplayPoint>, Hsla)>,
3463 base_background: Hsla,
3464 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
3465 struct Boundary {
3466 pos: DisplayPoint,
3467 is_start: bool,
3468 index: usize,
3469 color: Hsla,
3470 }
3471
3472 let mut boundaries: SmallVec<[Boundary; 16]> = SmallVec::with_capacity(ranges.len() * 2);
3473 for (index, (range, color)) in ranges.iter().enumerate() {
3474 debug_assert!(
3475 range.start.row() == range.end.row(),
3476 "expects single-row ranges"
3477 );
3478 if range.start < range.end {
3479 boundaries.push(Boundary {
3480 pos: range.start,
3481 is_start: true,
3482 index,
3483 color: *color,
3484 });
3485 boundaries.push(Boundary {
3486 pos: range.end,
3487 is_start: false,
3488 index,
3489 color: *color,
3490 });
3491 }
3492 }
3493
3494 if boundaries.is_empty() {
3495 return Vec::new();
3496 }
3497
3498 boundaries
3499 .sort_unstable_by(|a, b| a.pos.cmp(&b.pos).then_with(|| a.is_start.cmp(&b.is_start)));
3500
3501 let mut processed_ranges: Vec<(Range<DisplayPoint>, Hsla)> = Vec::new();
3502 let mut active_ranges: SmallVec<[(usize, Hsla); 8]> = SmallVec::new();
3503
3504 let mut i = 0;
3505 let mut start_pos = boundaries[0].pos;
3506
3507 let boundaries_len = boundaries.len();
3508 while i < boundaries_len {
3509 let current_boundary_pos = boundaries[i].pos;
3510 if start_pos < current_boundary_pos {
3511 if !active_ranges.is_empty() {
3512 let mut color = base_background;
3513 for &(_, c) in &active_ranges {
3514 color = Hsla::blend(color, c);
3515 }
3516 if let Some((last_range, last_color)) = processed_ranges.last_mut() {
3517 if *last_color == color && last_range.end == start_pos {
3518 last_range.end = current_boundary_pos;
3519 } else {
3520 processed_ranges.push((start_pos..current_boundary_pos, color));
3521 }
3522 } else {
3523 processed_ranges.push((start_pos..current_boundary_pos, color));
3524 }
3525 }
3526 }
3527 while i < boundaries_len && boundaries[i].pos == current_boundary_pos {
3528 let active_range = &boundaries[i];
3529 if active_range.is_start {
3530 let idx = active_range.index;
3531 let pos = active_ranges
3532 .binary_search_by_key(&idx, |(i, _)| *i)
3533 .unwrap_or_else(|p| p);
3534 active_ranges.insert(pos, (idx, active_range.color));
3535 } else {
3536 let idx = active_range.index;
3537 if let Ok(pos) = active_ranges.binary_search_by_key(&idx, |(i, _)| *i) {
3538 active_ranges.remove(pos);
3539 }
3540 }
3541 i += 1;
3542 }
3543 start_pos = current_boundary_pos;
3544 }
3545
3546 processed_ranges
3547 }
3548
3549 fn layout_lines(
3550 rows: Range<DisplayRow>,
3551 snapshot: &EditorSnapshot,
3552 style: &EditorStyle,
3553 editor_width: Pixels,
3554 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3555 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
3556 window: &mut Window,
3557 cx: &mut App,
3558 ) -> Vec<LineWithInvisibles> {
3559 if rows.start >= rows.end {
3560 return Vec::new();
3561 }
3562
3563 // Show the placeholder when the editor is empty
3564 if snapshot.is_empty() {
3565 let font_size = style.text.font_size.to_pixels(window.rem_size());
3566 let placeholder_color = cx.theme().colors().text_placeholder;
3567 let placeholder_text = snapshot.placeholder_text();
3568
3569 let placeholder_lines = placeholder_text
3570 .as_ref()
3571 .map_or(Vec::new(), |text| text.split('\n').collect::<Vec<_>>());
3572
3573 let placeholder_line_count = placeholder_lines.len();
3574
3575 placeholder_lines
3576 .into_iter()
3577 .skip(rows.start.0 as usize)
3578 .chain(iter::repeat(""))
3579 .take(cmp::max(rows.len(), placeholder_line_count))
3580 .map(move |line| {
3581 let run = TextRun {
3582 len: line.len(),
3583 font: style.text.font(),
3584 color: placeholder_color,
3585 ..Default::default()
3586 };
3587 let line = window.text_system().shape_line(
3588 line.to_string().into(),
3589 font_size,
3590 &[run],
3591 None,
3592 );
3593 LineWithInvisibles {
3594 width: line.width,
3595 len: line.len,
3596 fragments: smallvec![LineFragment::Text(line)],
3597 invisibles: Vec::new(),
3598 font_size,
3599 }
3600 })
3601 .collect()
3602 } else {
3603 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
3604 LineWithInvisibles::from_chunks(
3605 chunks,
3606 style,
3607 MAX_LINE_LEN,
3608 rows.len(),
3609 &snapshot.mode,
3610 editor_width,
3611 is_row_soft_wrapped,
3612 bg_segments_per_row,
3613 window,
3614 cx,
3615 )
3616 }
3617 }
3618
3619 fn prepaint_lines(
3620 &self,
3621 start_row: DisplayRow,
3622 line_layouts: &mut [LineWithInvisibles],
3623 line_height: Pixels,
3624 scroll_position: gpui::Point<ScrollOffset>,
3625 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
3626 content_origin: gpui::Point<Pixels>,
3627 window: &mut Window,
3628 cx: &mut App,
3629 ) -> SmallVec<[AnyElement; 1]> {
3630 let mut line_elements = SmallVec::new();
3631 for (ix, line) in line_layouts.iter_mut().enumerate() {
3632 let row = start_row + DisplayRow(ix as u32);
3633 line.prepaint(
3634 line_height,
3635 scroll_position,
3636 scroll_pixel_position,
3637 row,
3638 content_origin,
3639 &mut line_elements,
3640 window,
3641 cx,
3642 );
3643 }
3644 line_elements
3645 }
3646
3647 fn render_block(
3648 &self,
3649 block: &Block,
3650 available_width: AvailableSpace,
3651 block_id: BlockId,
3652 block_row_start: DisplayRow,
3653 snapshot: &EditorSnapshot,
3654 text_x: Pixels,
3655 rows: &Range<DisplayRow>,
3656 line_layouts: &[LineWithInvisibles],
3657 editor_margins: &EditorMargins,
3658 line_height: Pixels,
3659 em_width: Pixels,
3660 text_hitbox: &Hitbox,
3661 editor_width: Pixels,
3662 scroll_width: &mut Pixels,
3663 resized_blocks: &mut HashMap<CustomBlockId, u32>,
3664 row_block_types: &mut HashMap<DisplayRow, bool>,
3665 selections: &[Selection<Point>],
3666 selected_buffer_ids: &Vec<BufferId>,
3667 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3668 sticky_header_excerpt_id: Option<ExcerptId>,
3669 window: &mut Window,
3670 cx: &mut App,
3671 ) -> Option<(AnyElement, Size<Pixels>, DisplayRow, Pixels)> {
3672 let mut x_position = None;
3673 let mut element = match block {
3674 Block::Custom(custom) => {
3675 let block_start = custom.start().to_point(&snapshot.buffer_snapshot());
3676 let block_end = custom.end().to_point(&snapshot.buffer_snapshot());
3677 if block.place_near() && snapshot.is_line_folded(MultiBufferRow(block_start.row)) {
3678 return None;
3679 }
3680 let align_to = block_start.to_display_point(snapshot);
3681 let x_and_width = |layout: &LineWithInvisibles| {
3682 Some((
3683 text_x + layout.x_for_index(align_to.column() as usize),
3684 text_x + layout.width,
3685 ))
3686 };
3687 let line_ix = align_to.row().0.checked_sub(rows.start.0);
3688 x_position =
3689 if let Some(layout) = line_ix.and_then(|ix| line_layouts.get(ix as usize)) {
3690 x_and_width(layout)
3691 } else {
3692 x_and_width(&layout_line(
3693 align_to.row(),
3694 snapshot,
3695 &self.style,
3696 editor_width,
3697 is_row_soft_wrapped,
3698 window,
3699 cx,
3700 ))
3701 };
3702
3703 let anchor_x = x_position.unwrap().0;
3704
3705 let selected = selections
3706 .binary_search_by(|selection| {
3707 if selection.end <= block_start {
3708 Ordering::Less
3709 } else if selection.start >= block_end {
3710 Ordering::Greater
3711 } else {
3712 Ordering::Equal
3713 }
3714 })
3715 .is_ok();
3716
3717 div()
3718 .size_full()
3719 .child(custom.render(&mut BlockContext {
3720 window,
3721 app: cx,
3722 anchor_x,
3723 margins: editor_margins,
3724 line_height,
3725 em_width,
3726 block_id,
3727 selected,
3728 max_width: text_hitbox.size.width.max(*scroll_width),
3729 editor_style: &self.style,
3730 }))
3731 .into_any()
3732 }
3733
3734 Block::FoldedBuffer {
3735 first_excerpt,
3736 height,
3737 ..
3738 } => {
3739 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
3740 let result = v_flex().id(block_id).w_full().pr(editor_margins.right);
3741
3742 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
3743 result
3744 .child(self.render_buffer_header(
3745 first_excerpt,
3746 true,
3747 selected,
3748 false,
3749 jump_data,
3750 window,
3751 cx,
3752 ))
3753 .into_any_element()
3754 }
3755
3756 Block::ExcerptBoundary { .. } => {
3757 let color = cx.theme().colors().clone();
3758 let mut result = v_flex().id(block_id).w_full();
3759
3760 result = result.child(
3761 h_flex().relative().child(
3762 div()
3763 .top(line_height / 2.)
3764 .absolute()
3765 .w_full()
3766 .h_px()
3767 .bg(color.border_variant),
3768 ),
3769 );
3770
3771 result.into_any()
3772 }
3773
3774 Block::BufferHeader { excerpt, height } => {
3775 let mut result = v_flex().id(block_id).w_full();
3776
3777 let jump_data = header_jump_data(snapshot, block_row_start, *height, excerpt);
3778
3779 if sticky_header_excerpt_id != Some(excerpt.id) {
3780 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3781
3782 result = result.child(div().pr(editor_margins.right).child(
3783 self.render_buffer_header(
3784 excerpt, false, selected, false, jump_data, window, cx,
3785 ),
3786 ));
3787 } else {
3788 result =
3789 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
3790 }
3791
3792 result.into_any()
3793 }
3794 };
3795
3796 // Discover the element's content height, then round up to the nearest multiple of line height.
3797 let preliminary_size = element.layout_as_root(
3798 size(available_width, AvailableSpace::MinContent),
3799 window,
3800 cx,
3801 );
3802 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
3803 let final_size = if preliminary_size.height == quantized_height {
3804 preliminary_size
3805 } else {
3806 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
3807 };
3808 let mut element_height_in_lines = ((final_size.height / line_height).ceil() as u32).max(1);
3809
3810 let mut row = block_row_start;
3811 let mut x_offset = px(0.);
3812 let mut is_block = true;
3813
3814 if let BlockId::Custom(custom_block_id) = block_id
3815 && block.has_height()
3816 {
3817 if block.place_near()
3818 && let Some((x_target, line_width)) = x_position
3819 {
3820 let margin = em_width * 2;
3821 if line_width + final_size.width + margin
3822 < editor_width + editor_margins.gutter.full_width()
3823 && !row_block_types.contains_key(&(row - 1))
3824 && element_height_in_lines == 1
3825 {
3826 x_offset = line_width + margin;
3827 row = row - 1;
3828 is_block = false;
3829 element_height_in_lines = 0;
3830 row_block_types.insert(row, is_block);
3831 } else {
3832 let max_offset =
3833 editor_width + editor_margins.gutter.full_width() - final_size.width;
3834 let min_offset = (x_target + em_width - final_size.width)
3835 .max(editor_margins.gutter.full_width());
3836 x_offset = x_target.min(max_offset).max(min_offset);
3837 }
3838 };
3839 if element_height_in_lines != block.height() {
3840 resized_blocks.insert(custom_block_id, element_height_in_lines);
3841 }
3842 }
3843 for i in 0..element_height_in_lines {
3844 row_block_types.insert(row + i, is_block);
3845 }
3846
3847 Some((element, final_size, row, x_offset))
3848 }
3849
3850 fn render_buffer_header(
3851 &self,
3852 for_excerpt: &ExcerptInfo,
3853 is_folded: bool,
3854 is_selected: bool,
3855 is_sticky: bool,
3856 jump_data: JumpData,
3857 window: &mut Window,
3858 cx: &mut App,
3859 ) -> impl IntoElement {
3860 let editor = self.editor.read(cx);
3861 let multi_buffer = editor.buffer.read(cx);
3862 let file_status = multi_buffer
3863 .all_diff_hunks_expanded()
3864 .then(|| editor.status_for_buffer_id(for_excerpt.buffer_id, cx))
3865 .flatten();
3866 let indicator = multi_buffer
3867 .buffer(for_excerpt.buffer_id)
3868 .and_then(|buffer| {
3869 let buffer = buffer.read(cx);
3870 let indicator_color = match (buffer.has_conflict(), buffer.is_dirty()) {
3871 (true, _) => Some(Color::Warning),
3872 (_, true) => Some(Color::Accent),
3873 (false, false) => None,
3874 };
3875 indicator_color.map(|indicator_color| Indicator::dot().color(indicator_color))
3876 });
3877
3878 let include_root = editor
3879 .project
3880 .as_ref()
3881 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
3882 .unwrap_or_default();
3883 let file = for_excerpt.buffer.file();
3884 let can_open_excerpts = Editor::can_open_excerpts_in_file(file);
3885 let path_style = file.map(|file| file.path_style(cx));
3886 let relative_path = for_excerpt.buffer.resolve_file_path(include_root, cx);
3887 let (parent_path, filename) = if let Some(path) = &relative_path {
3888 if let Some(path_style) = path_style {
3889 let (dir, file_name) = path_style.split(path);
3890 (dir.map(|dir| dir.to_owned()), Some(file_name.to_owned()))
3891 } else {
3892 (None, Some(path.clone()))
3893 }
3894 } else {
3895 (None, None)
3896 };
3897 let focus_handle = editor.focus_handle(cx);
3898 let colors = cx.theme().colors();
3899
3900 let header = div()
3901 .p_1()
3902 .w_full()
3903 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
3904 .child(
3905 h_flex()
3906 .size_full()
3907 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
3908 .pl_1()
3909 .pr_2()
3910 .rounded_sm()
3911 .gap_1p5()
3912 .when(is_sticky, |el| el.shadow_md())
3913 .border_1()
3914 .map(|div| {
3915 let border_color = if is_selected
3916 && is_folded
3917 && focus_handle.contains_focused(window, cx)
3918 {
3919 colors.border_focused
3920 } else {
3921 colors.border
3922 };
3923 div.border_color(border_color)
3924 })
3925 .bg(colors.editor_subheader_background)
3926 .hover(|style| style.bg(colors.element_hover))
3927 .map(|header| {
3928 let editor = self.editor.clone();
3929 let buffer_id = for_excerpt.buffer_id;
3930 let toggle_chevron_icon =
3931 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
3932 let button_size = rems_from_px(28.);
3933
3934 header.child(
3935 div()
3936 .hover(|style| style.bg(colors.element_selected))
3937 .rounded_xs()
3938 .child(
3939 ButtonLike::new("toggle-buffer-fold")
3940 .style(ButtonStyle::Transparent)
3941 .height(button_size.into())
3942 .width(button_size)
3943 .children(toggle_chevron_icon)
3944 .tooltip({
3945 let focus_handle = focus_handle.clone();
3946 move |_window, cx| {
3947 Tooltip::with_meta_in(
3948 "Toggle Excerpt Fold",
3949 Some(&ToggleFold),
3950 format!(
3951 "{} to toggle all",
3952 text_for_keystroke(
3953 &Modifiers::alt(),
3954 "click",
3955 cx
3956 )
3957 ),
3958 &focus_handle,
3959 cx,
3960 )
3961 }
3962 })
3963 .on_click(move |event, window, cx| {
3964 if event.modifiers().alt {
3965 // Alt+click toggles all buffers
3966 editor.update(cx, |editor, cx| {
3967 editor.toggle_fold_all(
3968 &ToggleFoldAll,
3969 window,
3970 cx,
3971 );
3972 });
3973 } else {
3974 // Regular click toggles single buffer
3975 if is_folded {
3976 editor.update(cx, |editor, cx| {
3977 editor.unfold_buffer(buffer_id, cx);
3978 });
3979 } else {
3980 editor.update(cx, |editor, cx| {
3981 editor.fold_buffer(buffer_id, cx);
3982 });
3983 }
3984 }
3985 }),
3986 ),
3987 )
3988 })
3989 .children(
3990 editor
3991 .addons
3992 .values()
3993 .filter_map(|addon| {
3994 addon.render_buffer_header_controls(for_excerpt, window, cx)
3995 })
3996 .take(1),
3997 )
3998 .child(
3999 h_flex()
4000 .size(rems_from_px(12.0))
4001 .justify_center()
4002 .flex_shrink_0()
4003 .children(indicator),
4004 )
4005 .child(
4006 h_flex()
4007 .cursor_pointer()
4008 .id("path header block")
4009 .size_full()
4010 .justify_between()
4011 .overflow_hidden()
4012 .child(h_flex().gap_0p5().map(|path_header| {
4013 let filename = filename
4014 .map(SharedString::from)
4015 .unwrap_or_else(|| "untitled".into());
4016
4017 path_header
4018 .when(ItemSettings::get_global(cx).file_icons, |el| {
4019 let path = path::Path::new(filename.as_str());
4020 let icon =
4021 FileIcons::get_icon(path, cx).unwrap_or_default();
4022 let icon = Icon::from_path(icon).color(Color::Muted);
4023 el.child(icon)
4024 })
4025 .child(
4026 ButtonLike::new("filename-button")
4027 .style(ButtonStyle::Subtle)
4028 .child(
4029 div()
4030 .child(
4031 Label::new(filename)
4032 .single_line()
4033 .color(file_status_label_color(
4034 file_status,
4035 ))
4036 .when(
4037 file_status.is_some_and(|s| {
4038 s.is_deleted()
4039 }),
4040 |label| label.strikethrough(),
4041 ),
4042 )
4043 .group_hover("", |div| div.underline()),
4044 )
4045 .on_click(window.listener_for(&self.editor, {
4046 let jump_data = jump_data.clone();
4047 move |editor, e: &ClickEvent, window, cx| {
4048 editor.open_excerpts_common(
4049 Some(jump_data.clone()),
4050 e.modifiers().secondary(),
4051 window,
4052 cx,
4053 );
4054 }
4055 })),
4056 )
4057 .when_some(parent_path, |then, path| {
4058 then.child(div().child(path).text_color(
4059 if file_status.is_some_and(FileStatus::is_deleted) {
4060 colors.text_disabled
4061 } else {
4062 colors.text_muted
4063 },
4064 ))
4065 })
4066 }))
4067 .when(
4068 can_open_excerpts && is_selected && relative_path.is_some(),
4069 |el| {
4070 el.child(
4071 ButtonLike::new("open-file-button")
4072 .style(ButtonStyle::OutlinedGhost)
4073 .child(
4074 h_flex()
4075 .gap_2p5()
4076 .child(Label::new("Open file"))
4077 .child(KeyBinding::for_action_in(
4078 &OpenExcerpts,
4079 &focus_handle,
4080 cx,
4081 )),
4082 )
4083 .on_click(window.listener_for(&self.editor, {
4084 let jump_data = jump_data.clone();
4085 move |editor, e: &ClickEvent, window, cx| {
4086 editor.open_excerpts_common(
4087 Some(jump_data.clone()),
4088 e.modifiers().secondary(),
4089 window,
4090 cx,
4091 );
4092 }
4093 })),
4094 )
4095 },
4096 )
4097 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
4098 .on_click(window.listener_for(&self.editor, {
4099 let buffer_id = for_excerpt.buffer_id;
4100 move |editor, e: &ClickEvent, window, cx| {
4101 if e.modifiers().alt {
4102 editor.open_excerpts_common(
4103 Some(jump_data.clone()),
4104 e.modifiers().secondary(),
4105 window,
4106 cx,
4107 );
4108 return;
4109 }
4110
4111 if is_folded {
4112 editor.unfold_buffer(buffer_id, cx);
4113 } else {
4114 editor.fold_buffer(buffer_id, cx);
4115 }
4116 }
4117 })),
4118 ),
4119 );
4120
4121 let file = for_excerpt.buffer.file().cloned();
4122 let editor = self.editor.clone();
4123
4124 right_click_menu("buffer-header-context-menu")
4125 .trigger(move |_, _, _| header)
4126 .menu(move |window, cx| {
4127 let menu_context = focus_handle.clone();
4128 let editor = editor.clone();
4129 let file = file.clone();
4130 ContextMenu::build(window, cx, move |mut menu, window, cx| {
4131 if let Some(file) = file
4132 && let Some(project) = editor.read(cx).project()
4133 && let Some(worktree) =
4134 project.read(cx).worktree_for_id(file.worktree_id(cx), cx)
4135 {
4136 let path_style = file.path_style(cx);
4137 let worktree = worktree.read(cx);
4138 let relative_path = file.path();
4139 let entry_for_path = worktree.entry_for_path(relative_path);
4140 let abs_path = entry_for_path.map(|e| {
4141 e.canonical_path.as_deref().map_or_else(
4142 || worktree.absolutize(relative_path),
4143 Path::to_path_buf,
4144 )
4145 });
4146 let has_relative_path = worktree.root_entry().is_some_and(Entry::is_dir);
4147
4148 let parent_abs_path = abs_path
4149 .as_ref()
4150 .and_then(|abs_path| Some(abs_path.parent()?.to_path_buf()));
4151 let relative_path = has_relative_path
4152 .then_some(relative_path)
4153 .map(ToOwned::to_owned);
4154
4155 let visible_in_project_panel =
4156 relative_path.is_some() && worktree.is_visible();
4157 let reveal_in_project_panel = entry_for_path
4158 .filter(|_| visible_in_project_panel)
4159 .map(|entry| entry.id);
4160 menu = menu
4161 .when_some(abs_path, |menu, abs_path| {
4162 menu.entry(
4163 "Copy Path",
4164 Some(Box::new(zed_actions::workspace::CopyPath)),
4165 window.handler_for(&editor, move |_, _, cx| {
4166 cx.write_to_clipboard(ClipboardItem::new_string(
4167 abs_path.to_string_lossy().into_owned(),
4168 ));
4169 }),
4170 )
4171 })
4172 .when_some(relative_path, |menu, relative_path| {
4173 menu.entry(
4174 "Copy Relative Path",
4175 Some(Box::new(zed_actions::workspace::CopyRelativePath)),
4176 window.handler_for(&editor, move |_, _, cx| {
4177 cx.write_to_clipboard(ClipboardItem::new_string(
4178 relative_path.display(path_style).to_string(),
4179 ));
4180 }),
4181 )
4182 })
4183 .when(
4184 reveal_in_project_panel.is_some() || parent_abs_path.is_some(),
4185 |menu| menu.separator(),
4186 )
4187 .when_some(reveal_in_project_panel, |menu, entry_id| {
4188 menu.entry(
4189 "Reveal In Project Panel",
4190 Some(Box::new(RevealInProjectPanel::default())),
4191 window.handler_for(&editor, move |editor, _, cx| {
4192 if let Some(project) = &mut editor.project {
4193 project.update(cx, |_, cx| {
4194 cx.emit(project::Event::RevealInProjectPanel(
4195 entry_id,
4196 ))
4197 });
4198 }
4199 }),
4200 )
4201 })
4202 .when_some(parent_abs_path, |menu, parent_abs_path| {
4203 menu.entry(
4204 "Open in Terminal",
4205 Some(Box::new(OpenInTerminal)),
4206 window.handler_for(&editor, move |_, window, cx| {
4207 window.dispatch_action(
4208 OpenTerminal {
4209 working_directory: parent_abs_path.clone(),
4210 }
4211 .boxed_clone(),
4212 cx,
4213 );
4214 }),
4215 )
4216 });
4217 }
4218
4219 menu.context(menu_context)
4220 })
4221 })
4222 }
4223
4224 fn render_blocks(
4225 &self,
4226 rows: Range<DisplayRow>,
4227 snapshot: &EditorSnapshot,
4228 hitbox: &Hitbox,
4229 text_hitbox: &Hitbox,
4230 editor_width: Pixels,
4231 scroll_width: &mut Pixels,
4232 editor_margins: &EditorMargins,
4233 em_width: Pixels,
4234 text_x: Pixels,
4235 line_height: Pixels,
4236 line_layouts: &mut [LineWithInvisibles],
4237 selections: &[Selection<Point>],
4238 selected_buffer_ids: &Vec<BufferId>,
4239 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4240 sticky_header_excerpt_id: Option<ExcerptId>,
4241 window: &mut Window,
4242 cx: &mut App,
4243 ) -> Result<(Vec<BlockLayout>, HashMap<DisplayRow, bool>), HashMap<CustomBlockId, u32>> {
4244 let (fixed_blocks, non_fixed_blocks) = snapshot
4245 .blocks_in_range(rows.clone())
4246 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
4247
4248 let mut focused_block = self
4249 .editor
4250 .update(cx, |editor, _| editor.take_focused_block());
4251 let mut fixed_block_max_width = Pixels::ZERO;
4252 let mut blocks = Vec::new();
4253 let mut resized_blocks = HashMap::default();
4254 let mut row_block_types = HashMap::default();
4255
4256 for (row, block) in fixed_blocks {
4257 let block_id = block.id();
4258
4259 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4260 focused_block = None;
4261 }
4262
4263 if let Some((element, element_size, row, x_offset)) = self.render_block(
4264 block,
4265 AvailableSpace::MinContent,
4266 block_id,
4267 row,
4268 snapshot,
4269 text_x,
4270 &rows,
4271 line_layouts,
4272 editor_margins,
4273 line_height,
4274 em_width,
4275 text_hitbox,
4276 editor_width,
4277 scroll_width,
4278 &mut resized_blocks,
4279 &mut row_block_types,
4280 selections,
4281 selected_buffer_ids,
4282 is_row_soft_wrapped,
4283 sticky_header_excerpt_id,
4284 window,
4285 cx,
4286 ) {
4287 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
4288 blocks.push(BlockLayout {
4289 id: block_id,
4290 x_offset,
4291 row: Some(row),
4292 element,
4293 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
4294 style: BlockStyle::Fixed,
4295 overlaps_gutter: true,
4296 is_buffer_header: block.is_buffer_header(),
4297 });
4298 }
4299 }
4300
4301 for (row, block) in non_fixed_blocks {
4302 let style = block.style();
4303 let width = match (style, block.place_near()) {
4304 (_, true) => AvailableSpace::MinContent,
4305 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
4306 (BlockStyle::Flex, _) => hitbox
4307 .size
4308 .width
4309 .max(fixed_block_max_width)
4310 .max(editor_margins.gutter.width + *scroll_width)
4311 .into(),
4312 (BlockStyle::Fixed, _) => unreachable!(),
4313 };
4314 let block_id = block.id();
4315
4316 if focused_block.as_ref().is_some_and(|b| b.id == block_id) {
4317 focused_block = None;
4318 }
4319
4320 if let Some((element, element_size, row, x_offset)) = self.render_block(
4321 block,
4322 width,
4323 block_id,
4324 row,
4325 snapshot,
4326 text_x,
4327 &rows,
4328 line_layouts,
4329 editor_margins,
4330 line_height,
4331 em_width,
4332 text_hitbox,
4333 editor_width,
4334 scroll_width,
4335 &mut resized_blocks,
4336 &mut row_block_types,
4337 selections,
4338 selected_buffer_ids,
4339 is_row_soft_wrapped,
4340 sticky_header_excerpt_id,
4341 window,
4342 cx,
4343 ) {
4344 blocks.push(BlockLayout {
4345 id: block_id,
4346 x_offset,
4347 row: Some(row),
4348 element,
4349 available_space: size(width, element_size.height.into()),
4350 style,
4351 overlaps_gutter: !block.place_near(),
4352 is_buffer_header: block.is_buffer_header(),
4353 });
4354 }
4355 }
4356
4357 if let Some(focused_block) = focused_block
4358 && let Some(focus_handle) = focused_block.focus_handle.upgrade()
4359 && focus_handle.is_focused(window)
4360 && let Some(block) = snapshot.block_for_id(focused_block.id)
4361 {
4362 let style = block.style();
4363 let width = match style {
4364 BlockStyle::Fixed => AvailableSpace::MinContent,
4365 BlockStyle::Flex => AvailableSpace::Definite(
4366 hitbox
4367 .size
4368 .width
4369 .max(fixed_block_max_width)
4370 .max(editor_margins.gutter.width + *scroll_width),
4371 ),
4372 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
4373 };
4374
4375 if let Some((element, element_size, _, x_offset)) = self.render_block(
4376 &block,
4377 width,
4378 focused_block.id,
4379 rows.end,
4380 snapshot,
4381 text_x,
4382 &rows,
4383 line_layouts,
4384 editor_margins,
4385 line_height,
4386 em_width,
4387 text_hitbox,
4388 editor_width,
4389 scroll_width,
4390 &mut resized_blocks,
4391 &mut row_block_types,
4392 selections,
4393 selected_buffer_ids,
4394 is_row_soft_wrapped,
4395 sticky_header_excerpt_id,
4396 window,
4397 cx,
4398 ) {
4399 blocks.push(BlockLayout {
4400 id: block.id(),
4401 x_offset,
4402 row: None,
4403 element,
4404 available_space: size(width, element_size.height.into()),
4405 style,
4406 overlaps_gutter: true,
4407 is_buffer_header: block.is_buffer_header(),
4408 });
4409 }
4410 }
4411
4412 if resized_blocks.is_empty() {
4413 *scroll_width =
4414 (*scroll_width).max(fixed_block_max_width - editor_margins.gutter.width);
4415 Ok((blocks, row_block_types))
4416 } else {
4417 Err(resized_blocks)
4418 }
4419 }
4420
4421 fn layout_blocks(
4422 &self,
4423 blocks: &mut Vec<BlockLayout>,
4424 hitbox: &Hitbox,
4425 line_height: Pixels,
4426 scroll_position: gpui::Point<ScrollOffset>,
4427 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4428 window: &mut Window,
4429 cx: &mut App,
4430 ) {
4431 for block in blocks {
4432 let mut origin = if let Some(row) = block.row {
4433 hitbox.origin
4434 + point(
4435 block.x_offset,
4436 Pixels::from(
4437 (row.as_f64() - scroll_position.y)
4438 * ScrollPixelOffset::from(line_height),
4439 ),
4440 )
4441 } else {
4442 // Position the block outside the visible area
4443 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
4444 };
4445
4446 if !matches!(block.style, BlockStyle::Sticky) {
4447 origin += point(Pixels::from(-scroll_pixel_position.x), Pixels::ZERO);
4448 }
4449
4450 let focus_handle =
4451 block
4452 .element
4453 .prepaint_as_root(origin, block.available_space, window, cx);
4454
4455 if let Some(focus_handle) = focus_handle {
4456 self.editor.update(cx, |editor, _cx| {
4457 editor.set_focused_block(FocusedBlock {
4458 id: block.id,
4459 focus_handle: focus_handle.downgrade(),
4460 });
4461 });
4462 }
4463 }
4464 }
4465
4466 fn layout_sticky_buffer_header(
4467 &self,
4468 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
4469 scroll_position: gpui::Point<ScrollOffset>,
4470 line_height: Pixels,
4471 right_margin: Pixels,
4472 snapshot: &EditorSnapshot,
4473 hitbox: &Hitbox,
4474 selected_buffer_ids: &Vec<BufferId>,
4475 blocks: &[BlockLayout],
4476 window: &mut Window,
4477 cx: &mut App,
4478 ) -> AnyElement {
4479 let jump_data = header_jump_data(
4480 snapshot,
4481 DisplayRow(scroll_position.y as u32),
4482 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
4483 excerpt,
4484 );
4485
4486 let editor_bg_color = cx.theme().colors().editor_background;
4487
4488 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
4489
4490 let available_width = hitbox.bounds.size.width - right_margin;
4491
4492 let mut header = v_flex()
4493 .w_full()
4494 .relative()
4495 .child(
4496 div()
4497 .w(available_width)
4498 .h(FILE_HEADER_HEIGHT as f32 * line_height)
4499 .bg(linear_gradient(
4500 0.,
4501 linear_color_stop(editor_bg_color.opacity(0.), 0.),
4502 linear_color_stop(editor_bg_color, 0.6),
4503 ))
4504 .absolute()
4505 .top_0(),
4506 )
4507 .child(
4508 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
4509 .into_any_element(),
4510 )
4511 .into_any_element();
4512
4513 let mut origin = hitbox.origin;
4514 // Move floating header up to avoid colliding with the next buffer header.
4515 for block in blocks.iter() {
4516 if !block.is_buffer_header {
4517 continue;
4518 }
4519
4520 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position.y as u32) else {
4521 continue;
4522 };
4523
4524 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
4525 let offset = scroll_position.y - max_row as f64;
4526
4527 if offset > 0.0 {
4528 origin.y -= Pixels::from(offset * ScrollPixelOffset::from(line_height));
4529 }
4530 break;
4531 }
4532
4533 let size = size(
4534 AvailableSpace::Definite(available_width),
4535 AvailableSpace::MinContent,
4536 );
4537
4538 header.prepaint_as_root(origin, size, window, cx);
4539
4540 header
4541 }
4542
4543 fn layout_sticky_headers(
4544 &self,
4545 snapshot: &EditorSnapshot,
4546 editor_width: Pixels,
4547 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4548 line_height: Pixels,
4549 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4550 content_origin: gpui::Point<Pixels>,
4551 gutter_dimensions: &GutterDimensions,
4552 gutter_hitbox: &Hitbox,
4553 text_hitbox: &Hitbox,
4554 window: &mut Window,
4555 cx: &mut App,
4556 ) -> Option<StickyHeaders> {
4557 let show_line_numbers = snapshot
4558 .show_line_numbers
4559 .unwrap_or_else(|| EditorSettings::get_global(cx).gutter.line_numbers);
4560
4561 let rows = Self::sticky_headers(self.editor.read(cx), snapshot, cx);
4562
4563 let mut lines = Vec::<StickyHeaderLine>::new();
4564
4565 for StickyHeader {
4566 item,
4567 sticky_row,
4568 start_point,
4569 offset,
4570 } in rows.into_iter().rev()
4571 {
4572 let line = layout_line(
4573 sticky_row,
4574 snapshot,
4575 &self.style,
4576 editor_width,
4577 is_row_soft_wrapped,
4578 window,
4579 cx,
4580 );
4581
4582 let line_number = show_line_numbers.then(|| {
4583 let number = (start_point.row + 1).to_string();
4584 let color = cx.theme().colors().editor_line_number;
4585 self.shape_line_number(SharedString::from(number), color, window)
4586 });
4587
4588 lines.push(StickyHeaderLine::new(
4589 sticky_row,
4590 line_height * offset as f32,
4591 line,
4592 line_number,
4593 item.range.start,
4594 line_height,
4595 scroll_pixel_position,
4596 content_origin,
4597 gutter_hitbox,
4598 text_hitbox,
4599 window,
4600 cx,
4601 ));
4602 }
4603
4604 lines.reverse();
4605 if lines.is_empty() {
4606 return None;
4607 }
4608
4609 Some(StickyHeaders {
4610 lines,
4611 gutter_background: cx.theme().colors().editor_gutter_background,
4612 content_background: self.style.background,
4613 gutter_right_padding: gutter_dimensions.right_padding,
4614 })
4615 }
4616
4617 pub(crate) fn sticky_headers(
4618 editor: &Editor,
4619 snapshot: &EditorSnapshot,
4620 cx: &App,
4621 ) -> Vec<StickyHeader> {
4622 let scroll_top = snapshot.scroll_position().y;
4623
4624 let mut end_rows = Vec::<DisplayRow>::new();
4625 let mut rows = Vec::<StickyHeader>::new();
4626
4627 let items = editor.sticky_headers(cx).unwrap_or_default();
4628
4629 for item in items {
4630 let start_point = item.range.start.to_point(snapshot.buffer_snapshot());
4631 let end_point = item.range.end.to_point(snapshot.buffer_snapshot());
4632
4633 let sticky_row = snapshot
4634 .display_snapshot
4635 .point_to_display_point(start_point, Bias::Left)
4636 .row();
4637 let end_row = snapshot
4638 .display_snapshot
4639 .point_to_display_point(end_point, Bias::Left)
4640 .row();
4641 let max_sticky_row = end_row.previous_row();
4642 if max_sticky_row <= sticky_row {
4643 continue;
4644 }
4645
4646 while end_rows
4647 .last()
4648 .is_some_and(|&last_end| last_end < sticky_row)
4649 {
4650 end_rows.pop();
4651 }
4652 let depth = end_rows.len();
4653 let adjusted_scroll_top = scroll_top + depth as f64;
4654
4655 if sticky_row.as_f64() >= adjusted_scroll_top || end_row.as_f64() <= adjusted_scroll_top
4656 {
4657 continue;
4658 }
4659
4660 let max_scroll_offset = max_sticky_row.as_f64() - scroll_top;
4661 let offset = (depth as f64).min(max_scroll_offset);
4662
4663 end_rows.push(end_row);
4664 rows.push(StickyHeader {
4665 item,
4666 sticky_row,
4667 start_point,
4668 offset,
4669 });
4670 }
4671
4672 rows
4673 }
4674
4675 fn layout_cursor_popovers(
4676 &self,
4677 line_height: Pixels,
4678 text_hitbox: &Hitbox,
4679 content_origin: gpui::Point<Pixels>,
4680 right_margin: Pixels,
4681 start_row: DisplayRow,
4682 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4683 line_layouts: &[LineWithInvisibles],
4684 cursor: DisplayPoint,
4685 cursor_point: Point,
4686 style: &EditorStyle,
4687 window: &mut Window,
4688 cx: &mut App,
4689 ) -> Option<ContextMenuLayout> {
4690 let mut min_menu_height = Pixels::ZERO;
4691 let mut max_menu_height = Pixels::ZERO;
4692 let mut height_above_menu = Pixels::ZERO;
4693 let height_below_menu = Pixels::ZERO;
4694 let mut edit_prediction_popover_visible = false;
4695 let mut context_menu_visible = false;
4696 let context_menu_placement;
4697
4698 {
4699 let editor = self.editor.read(cx);
4700 if editor.edit_prediction_visible_in_cursor_popover(editor.has_active_edit_prediction())
4701 {
4702 height_above_menu +=
4703 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
4704 edit_prediction_popover_visible = true;
4705 }
4706
4707 if editor.context_menu_visible()
4708 && let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin()
4709 {
4710 let (min_height_in_lines, max_height_in_lines) = editor
4711 .context_menu_options
4712 .as_ref()
4713 .map_or((3, 12), |options| {
4714 (options.min_entries_visible, options.max_entries_visible)
4715 });
4716
4717 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4718 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4719 context_menu_visible = true;
4720 }
4721 context_menu_placement = editor
4722 .context_menu_options
4723 .as_ref()
4724 .and_then(|options| options.placement.clone());
4725 }
4726
4727 let visible = edit_prediction_popover_visible || context_menu_visible;
4728 if !visible {
4729 return None;
4730 }
4731
4732 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
4733 let target_position = content_origin
4734 + gpui::Point {
4735 x: cmp::max(
4736 px(0.),
4737 Pixels::from(
4738 ScrollPixelOffset::from(
4739 cursor_row_layout.x_for_index(cursor.column() as usize),
4740 ) - scroll_pixel_position.x,
4741 ),
4742 ),
4743 y: cmp::max(
4744 px(0.),
4745 Pixels::from(
4746 cursor.row().next_row().as_f64() * ScrollPixelOffset::from(line_height)
4747 - scroll_pixel_position.y,
4748 ),
4749 ),
4750 };
4751
4752 let viewport_bounds =
4753 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4754 right: -right_margin - MENU_GAP,
4755 ..Default::default()
4756 });
4757
4758 let min_height = height_above_menu + min_menu_height + height_below_menu;
4759 let max_height = height_above_menu + max_menu_height + height_below_menu;
4760 let (laid_out_popovers, y_flipped) = self.layout_popovers_above_or_below_line(
4761 target_position,
4762 line_height,
4763 min_height,
4764 max_height,
4765 context_menu_placement,
4766 text_hitbox,
4767 viewport_bounds,
4768 window,
4769 cx,
4770 |height, max_width_for_stable_x, y_flipped, window, cx| {
4771 // First layout the menu to get its size - others can be at least this wide.
4772 let context_menu = if context_menu_visible {
4773 let menu_height = if y_flipped {
4774 height - height_below_menu
4775 } else {
4776 height - height_above_menu
4777 };
4778 let mut element = self
4779 .render_context_menu(line_height, menu_height, window, cx)
4780 .expect("Visible context menu should always render.");
4781 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4782 Some((CursorPopoverType::CodeContextMenu, element, size))
4783 } else {
4784 None
4785 };
4786 let min_width = context_menu
4787 .as_ref()
4788 .map_or(px(0.), |(_, _, size)| size.width);
4789 let max_width = max_width_for_stable_x.max(
4790 context_menu
4791 .as_ref()
4792 .map_or(px(0.), |(_, _, size)| size.width),
4793 );
4794
4795 let edit_prediction = if edit_prediction_popover_visible {
4796 self.editor.update(cx, move |editor, cx| {
4797 let accept_binding =
4798 editor.accept_edit_prediction_keybind(false, window, cx);
4799 let mut element = editor.render_edit_prediction_cursor_popover(
4800 min_width,
4801 max_width,
4802 cursor_point,
4803 style,
4804 accept_binding.keystroke(),
4805 window,
4806 cx,
4807 )?;
4808 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4809 Some((CursorPopoverType::EditPrediction, element, size))
4810 })
4811 } else {
4812 None
4813 };
4814 vec![edit_prediction, context_menu]
4815 .into_iter()
4816 .flatten()
4817 .collect::<Vec<_>>()
4818 },
4819 )?;
4820
4821 let (menu_ix, (_, menu_bounds)) = laid_out_popovers
4822 .iter()
4823 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))?;
4824 let last_ix = laid_out_popovers.len() - 1;
4825 let menu_is_last = menu_ix == last_ix;
4826 let first_popover_bounds = laid_out_popovers[0].1;
4827 let last_popover_bounds = laid_out_popovers[last_ix].1;
4828
4829 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
4830 // right, and otherwise it goes below or to the right.
4831 let mut target_bounds = Bounds::from_corners(
4832 first_popover_bounds.origin,
4833 last_popover_bounds.bottom_right(),
4834 );
4835 target_bounds.size.width = menu_bounds.size.width;
4836
4837 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
4838 // based on this is preferred for layout stability.
4839 let mut max_target_bounds = target_bounds;
4840 max_target_bounds.size.height = max_height;
4841 if y_flipped {
4842 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
4843 }
4844
4845 // Add spacing around `target_bounds` and `max_target_bounds`.
4846 let mut extend_amount = Edges::all(MENU_GAP);
4847 if y_flipped {
4848 extend_amount.bottom = line_height;
4849 } else {
4850 extend_amount.top = line_height;
4851 }
4852 let target_bounds = target_bounds.extend(extend_amount);
4853 let max_target_bounds = max_target_bounds.extend(extend_amount);
4854
4855 let must_place_above_or_below =
4856 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
4857 laid_out_popovers[menu_ix + 1..]
4858 .iter()
4859 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
4860 } else {
4861 false
4862 };
4863
4864 let aside_bounds = self.layout_context_menu_aside(
4865 y_flipped,
4866 *menu_bounds,
4867 target_bounds,
4868 max_target_bounds,
4869 max_menu_height,
4870 must_place_above_or_below,
4871 text_hitbox,
4872 viewport_bounds,
4873 window,
4874 cx,
4875 );
4876
4877 if let Some(menu_bounds) = laid_out_popovers.iter().find_map(|(popover_type, bounds)| {
4878 if matches!(popover_type, CursorPopoverType::CodeContextMenu) {
4879 Some(*bounds)
4880 } else {
4881 None
4882 }
4883 }) {
4884 let bounds = if let Some(aside_bounds) = aside_bounds {
4885 menu_bounds.union(&aside_bounds)
4886 } else {
4887 menu_bounds
4888 };
4889 return Some(ContextMenuLayout { y_flipped, bounds });
4890 }
4891
4892 None
4893 }
4894
4895 fn layout_gutter_menu(
4896 &self,
4897 line_height: Pixels,
4898 text_hitbox: &Hitbox,
4899 content_origin: gpui::Point<Pixels>,
4900 right_margin: Pixels,
4901 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
4902 gutter_overshoot: Pixels,
4903 window: &mut Window,
4904 cx: &mut App,
4905 ) {
4906 let editor = self.editor.read(cx);
4907 if !editor.context_menu_visible() {
4908 return;
4909 }
4910 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
4911 editor.context_menu_origin()
4912 else {
4913 return;
4914 };
4915 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
4916 // indicator than just a plain first column of the text field.
4917 let target_position = content_origin
4918 + gpui::Point {
4919 x: -gutter_overshoot,
4920 y: Pixels::from(
4921 gutter_row.next_row().as_f64() * ScrollPixelOffset::from(line_height)
4922 - scroll_pixel_position.y,
4923 ),
4924 };
4925
4926 let (min_height_in_lines, max_height_in_lines) = editor
4927 .context_menu_options
4928 .as_ref()
4929 .map_or((3, 12), |options| {
4930 (options.min_entries_visible, options.max_entries_visible)
4931 });
4932
4933 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4934 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4935 let viewport_bounds =
4936 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4937 right: -right_margin - MENU_GAP,
4938 ..Default::default()
4939 });
4940 self.layout_popovers_above_or_below_line(
4941 target_position,
4942 line_height,
4943 min_height,
4944 max_height,
4945 editor
4946 .context_menu_options
4947 .as_ref()
4948 .and_then(|options| options.placement.clone()),
4949 text_hitbox,
4950 viewport_bounds,
4951 window,
4952 cx,
4953 move |height, _max_width_for_stable_x, _, window, cx| {
4954 let mut element = self
4955 .render_context_menu(line_height, height, window, cx)
4956 .expect("Visible context menu should always render.");
4957 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4958 vec![(CursorPopoverType::CodeContextMenu, element, size)]
4959 },
4960 );
4961 }
4962
4963 fn layout_popovers_above_or_below_line(
4964 &self,
4965 target_position: gpui::Point<Pixels>,
4966 line_height: Pixels,
4967 min_height: Pixels,
4968 max_height: Pixels,
4969 placement: Option<ContextMenuPlacement>,
4970 text_hitbox: &Hitbox,
4971 viewport_bounds: Bounds<Pixels>,
4972 window: &mut Window,
4973 cx: &mut App,
4974 make_sized_popovers: impl FnOnce(
4975 Pixels,
4976 Pixels,
4977 bool,
4978 &mut Window,
4979 &mut App,
4980 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
4981 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
4982 let text_style = TextStyleRefinement {
4983 line_height: Some(DefiniteLength::Fraction(
4984 BufferLineHeight::Comfortable.value(),
4985 )),
4986 ..Default::default()
4987 };
4988 window.with_text_style(Some(text_style), |window| {
4989 // If the max height won't fit below and there is more space above, put it above the line.
4990 let bottom_y_when_flipped = target_position.y - line_height;
4991 let available_above = bottom_y_when_flipped - text_hitbox.top();
4992 let available_below = text_hitbox.bottom() - target_position.y;
4993 let y_overflows_below = max_height > available_below;
4994 let mut y_flipped = match placement {
4995 Some(ContextMenuPlacement::Above) => true,
4996 Some(ContextMenuPlacement::Below) => false,
4997 None => y_overflows_below && available_above > available_below,
4998 };
4999 let mut height = cmp::min(
5000 max_height,
5001 if y_flipped {
5002 available_above
5003 } else {
5004 available_below
5005 },
5006 );
5007
5008 // If the min height doesn't fit within text bounds, instead fit within the window.
5009 if height < min_height {
5010 let available_above = bottom_y_when_flipped;
5011 let available_below = viewport_bounds.bottom() - target_position.y;
5012 let (y_flipped_override, height_override) = match placement {
5013 Some(ContextMenuPlacement::Above) => {
5014 (true, cmp::min(available_above, min_height))
5015 }
5016 Some(ContextMenuPlacement::Below) => {
5017 (false, cmp::min(available_below, min_height))
5018 }
5019 None => {
5020 if available_below > min_height {
5021 (false, min_height)
5022 } else if available_above > min_height {
5023 (true, min_height)
5024 } else if available_above > available_below {
5025 (true, available_above)
5026 } else {
5027 (false, available_below)
5028 }
5029 }
5030 };
5031 y_flipped = y_flipped_override;
5032 height = height_override;
5033 }
5034
5035 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
5036
5037 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
5038 // for very narrow windows.
5039 let popovers =
5040 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
5041 if popovers.is_empty() {
5042 return None;
5043 }
5044
5045 let max_width = popovers
5046 .iter()
5047 .map(|(_, _, size)| size.width)
5048 .max()
5049 .unwrap_or_default();
5050
5051 let mut current_position = gpui::Point {
5052 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
5053 // overflow. Include space for the scrollbar.
5054 x: target_position
5055 .x
5056 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
5057 y: if y_flipped {
5058 bottom_y_when_flipped
5059 } else {
5060 target_position.y
5061 },
5062 };
5063
5064 let mut laid_out_popovers = popovers
5065 .into_iter()
5066 .map(|(popover_type, element, size)| {
5067 if y_flipped {
5068 current_position.y -= size.height;
5069 }
5070 let position = current_position;
5071 window.defer_draw(element, current_position, 1);
5072 if !y_flipped {
5073 current_position.y += size.height + MENU_GAP;
5074 } else {
5075 current_position.y -= MENU_GAP;
5076 }
5077 (popover_type, Bounds::new(position, size))
5078 })
5079 .collect::<Vec<_>>();
5080
5081 if y_flipped {
5082 laid_out_popovers.reverse();
5083 }
5084
5085 Some((laid_out_popovers, y_flipped))
5086 })
5087 }
5088
5089 fn layout_context_menu_aside(
5090 &self,
5091 y_flipped: bool,
5092 menu_bounds: Bounds<Pixels>,
5093 target_bounds: Bounds<Pixels>,
5094 max_target_bounds: Bounds<Pixels>,
5095 max_height: Pixels,
5096 must_place_above_or_below: bool,
5097 text_hitbox: &Hitbox,
5098 viewport_bounds: Bounds<Pixels>,
5099 window: &mut Window,
5100 cx: &mut App,
5101 ) -> Option<Bounds<Pixels>> {
5102 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
5103 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
5104 && !must_place_above_or_below
5105 {
5106 let max_width = cmp::min(
5107 available_within_viewport.right - px(1.),
5108 MENU_ASIDE_MAX_WIDTH,
5109 );
5110 let mut aside = self.render_context_menu_aside(
5111 size(max_width, max_height - POPOVER_Y_PADDING),
5112 window,
5113 cx,
5114 )?;
5115 let size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5116 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
5117 Some((aside, right_position, size))
5118 } else {
5119 let max_size = size(
5120 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
5121 // won't be needed here.
5122 cmp::min(
5123 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
5124 viewport_bounds.right(),
5125 ),
5126 cmp::min(
5127 max_height,
5128 cmp::max(
5129 available_within_viewport.top,
5130 available_within_viewport.bottom,
5131 ),
5132 ) - POPOVER_Y_PADDING,
5133 );
5134 let mut aside = self.render_context_menu_aside(max_size, window, cx)?;
5135 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
5136
5137 let top_position = point(
5138 menu_bounds.origin.x,
5139 target_bounds.top() - actual_size.height,
5140 );
5141 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
5142
5143 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
5144 // Prefer to fit on the same side of the line as the menu, then on the other side of
5145 // the line.
5146 if !y_flipped && wanted.height < available.bottom {
5147 Some(bottom_position)
5148 } else if !y_flipped && wanted.height < available.top {
5149 Some(top_position)
5150 } else if y_flipped && wanted.height < available.top {
5151 Some(top_position)
5152 } else if y_flipped && wanted.height < available.bottom {
5153 Some(bottom_position)
5154 } else {
5155 None
5156 }
5157 };
5158
5159 // Prefer choosing a direction using max sizes rather than actual size for stability.
5160 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
5161 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
5162 let aside_position = fit_within(available_within_text, wanted)
5163 // Fallback: fit max size in window.
5164 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
5165 // Fallback: fit actual size in window.
5166 .or_else(|| fit_within(available_within_viewport, actual_size));
5167
5168 aside_position.map(|position| (aside, position, actual_size))
5169 };
5170
5171 // Skip drawing if it doesn't fit anywhere.
5172 if let Some((aside, position, size)) = positioned_aside {
5173 let aside_bounds = Bounds::new(position, size);
5174 window.defer_draw(aside, position, 2);
5175 return Some(aside_bounds);
5176 }
5177
5178 None
5179 }
5180
5181 fn render_context_menu(
5182 &self,
5183 line_height: Pixels,
5184 height: Pixels,
5185 window: &mut Window,
5186 cx: &mut App,
5187 ) -> Option<AnyElement> {
5188 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
5189 self.editor.update(cx, |editor, cx| {
5190 editor.render_context_menu(&self.style, max_height_in_lines, window, cx)
5191 })
5192 }
5193
5194 fn render_context_menu_aside(
5195 &self,
5196 max_size: Size<Pixels>,
5197 window: &mut Window,
5198 cx: &mut App,
5199 ) -> Option<AnyElement> {
5200 if max_size.width < px(100.) || max_size.height < px(12.) {
5201 None
5202 } else {
5203 self.editor.update(cx, |editor, cx| {
5204 editor.render_context_menu_aside(max_size, window, cx)
5205 })
5206 }
5207 }
5208
5209 fn layout_mouse_context_menu(
5210 &self,
5211 editor_snapshot: &EditorSnapshot,
5212 visible_range: Range<DisplayRow>,
5213 content_origin: gpui::Point<Pixels>,
5214 window: &mut Window,
5215 cx: &mut App,
5216 ) -> Option<AnyElement> {
5217 let position = self.editor.update(cx, |editor, _cx| {
5218 let visible_start_point = editor.display_to_pixel_point(
5219 DisplayPoint::new(visible_range.start, 0),
5220 editor_snapshot,
5221 window,
5222 )?;
5223 let visible_end_point = editor.display_to_pixel_point(
5224 DisplayPoint::new(visible_range.end, 0),
5225 editor_snapshot,
5226 window,
5227 )?;
5228
5229 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5230 let (source_display_point, position) = match mouse_context_menu.position {
5231 MenuPosition::PinnedToScreen(point) => (None, point),
5232 MenuPosition::PinnedToEditor { source, offset } => {
5233 let source_display_point = source.to_display_point(editor_snapshot);
5234 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
5235 let position = content_origin + source_point + offset;
5236 (Some(source_display_point), position)
5237 }
5238 };
5239
5240 let source_included = source_display_point.is_none_or(|source_display_point| {
5241 visible_range
5242 .to_inclusive()
5243 .contains(&source_display_point.row())
5244 });
5245 let position_included =
5246 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
5247 if !source_included && !position_included {
5248 None
5249 } else {
5250 Some(position)
5251 }
5252 })?;
5253
5254 let text_style = TextStyleRefinement {
5255 line_height: Some(DefiniteLength::Fraction(
5256 BufferLineHeight::Comfortable.value(),
5257 )),
5258 ..Default::default()
5259 };
5260 window.with_text_style(Some(text_style), |window| {
5261 let mut element = self.editor.read_with(cx, |editor, _| {
5262 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
5263 let context_menu = mouse_context_menu.context_menu.clone();
5264
5265 Some(
5266 deferred(
5267 anchored()
5268 .position(position)
5269 .child(context_menu)
5270 .anchor(Corner::TopLeft)
5271 .snap_to_window_with_margin(px(8.)),
5272 )
5273 .with_priority(1)
5274 .into_any(),
5275 )
5276 })?;
5277
5278 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
5279 Some(element)
5280 })
5281 }
5282
5283 fn layout_hover_popovers(
5284 &self,
5285 snapshot: &EditorSnapshot,
5286 hitbox: &Hitbox,
5287 visible_display_row_range: Range<DisplayRow>,
5288 content_origin: gpui::Point<Pixels>,
5289 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5290 line_layouts: &[LineWithInvisibles],
5291 line_height: Pixels,
5292 em_width: Pixels,
5293 context_menu_layout: Option<ContextMenuLayout>,
5294 window: &mut Window,
5295 cx: &mut App,
5296 ) {
5297 struct MeasuredHoverPopover {
5298 element: AnyElement,
5299 size: Size<Pixels>,
5300 horizontal_offset: Pixels,
5301 }
5302
5303 let max_size = size(
5304 (120. * em_width) // Default size
5305 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5306 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5307 (16. * line_height) // Default size
5308 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5309 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5310 );
5311
5312 let hover_popovers = self.editor.update(cx, |editor, cx| {
5313 editor.hover_state.render(
5314 snapshot,
5315 visible_display_row_range.clone(),
5316 max_size,
5317 &editor.text_layout_details(window),
5318 window,
5319 cx,
5320 )
5321 });
5322 let Some((popover_position, hover_popovers)) = hover_popovers else {
5323 return;
5324 };
5325
5326 // This is safe because we check on layout whether the required row is available
5327 let hovered_row_layout = &line_layouts[popover_position
5328 .row()
5329 .minus(visible_display_row_range.start)
5330 as usize];
5331
5332 // Compute Hovered Point
5333 let x = hovered_row_layout.x_for_index(popover_position.column() as usize)
5334 - Pixels::from(scroll_pixel_position.x);
5335 let y = Pixels::from(
5336 popover_position.row().as_f64() * ScrollPixelOffset::from(line_height)
5337 - scroll_pixel_position.y,
5338 );
5339 let hovered_point = content_origin + point(x, y);
5340
5341 let mut overall_height = Pixels::ZERO;
5342 let mut measured_hover_popovers = Vec::new();
5343 for (position, mut hover_popover) in hover_popovers.into_iter().with_position() {
5344 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
5345 let horizontal_offset =
5346 (hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
5347 .min(Pixels::ZERO);
5348 match position {
5349 itertools::Position::Middle | itertools::Position::Last => {
5350 overall_height += HOVER_POPOVER_GAP
5351 }
5352 _ => {}
5353 }
5354 overall_height += size.height;
5355 measured_hover_popovers.push(MeasuredHoverPopover {
5356 element: hover_popover,
5357 size,
5358 horizontal_offset,
5359 });
5360 }
5361
5362 fn draw_occluder(
5363 width: Pixels,
5364 origin: gpui::Point<Pixels>,
5365 window: &mut Window,
5366 cx: &mut App,
5367 ) {
5368 let mut occlusion = div()
5369 .size_full()
5370 .occlude()
5371 .on_mouse_move(|_, _, cx| cx.stop_propagation())
5372 .into_any_element();
5373 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
5374 window.defer_draw(occlusion, origin, 2);
5375 }
5376
5377 fn place_popovers_above(
5378 hovered_point: gpui::Point<Pixels>,
5379 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5380 window: &mut Window,
5381 cx: &mut App,
5382 ) {
5383 let mut current_y = hovered_point.y;
5384 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5385 let size = popover.size;
5386 let popover_origin = point(
5387 hovered_point.x + popover.horizontal_offset,
5388 current_y - size.height,
5389 );
5390
5391 window.defer_draw(popover.element, popover_origin, 2);
5392 if position != itertools::Position::Last {
5393 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
5394 draw_occluder(size.width, origin, window, cx);
5395 }
5396
5397 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5398 }
5399 }
5400
5401 fn place_popovers_below(
5402 hovered_point: gpui::Point<Pixels>,
5403 measured_hover_popovers: Vec<MeasuredHoverPopover>,
5404 line_height: Pixels,
5405 window: &mut Window,
5406 cx: &mut App,
5407 ) {
5408 let mut current_y = hovered_point.y + line_height;
5409 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5410 let size = popover.size;
5411 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5412
5413 window.defer_draw(popover.element, popover_origin, 2);
5414 if position != itertools::Position::Last {
5415 let origin = point(popover_origin.x, popover_origin.y + size.height);
5416 draw_occluder(size.width, origin, window, cx);
5417 }
5418
5419 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5420 }
5421 }
5422
5423 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5424 context_menu_layout
5425 .as_ref()
5426 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5427 };
5428
5429 let can_place_above = {
5430 let mut bounds_above = Vec::new();
5431 let mut current_y = hovered_point.y;
5432 for popover in &measured_hover_popovers {
5433 let size = popover.size;
5434 let popover_origin = point(
5435 hovered_point.x + popover.horizontal_offset,
5436 current_y - size.height,
5437 );
5438 bounds_above.push(Bounds::new(popover_origin, size));
5439 current_y = popover_origin.y - HOVER_POPOVER_GAP;
5440 }
5441 bounds_above
5442 .iter()
5443 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5444 };
5445
5446 let can_place_below = || {
5447 let mut bounds_below = Vec::new();
5448 let mut current_y = hovered_point.y + line_height;
5449 for popover in &measured_hover_popovers {
5450 let size = popover.size;
5451 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
5452 bounds_below.push(Bounds::new(popover_origin, size));
5453 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5454 }
5455 bounds_below
5456 .iter()
5457 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
5458 };
5459
5460 if can_place_above {
5461 // try placing above hovered point
5462 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5463 } else if can_place_below() {
5464 // try placing below hovered point
5465 place_popovers_below(
5466 hovered_point,
5467 measured_hover_popovers,
5468 line_height,
5469 window,
5470 cx,
5471 );
5472 } else {
5473 // try to place popovers around the context menu
5474 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5475 let total_width = measured_hover_popovers
5476 .iter()
5477 .map(|p| p.size.width)
5478 .max()
5479 .unwrap_or(Pixels::ZERO);
5480 let y_for_horizontal_positioning = if menu.y_flipped {
5481 menu.bounds.bottom() - overall_height
5482 } else {
5483 menu.bounds.top()
5484 };
5485 let possible_origins = vec![
5486 // left of context menu
5487 point(
5488 menu.bounds.left() - total_width - HOVER_POPOVER_GAP,
5489 y_for_horizontal_positioning,
5490 ),
5491 // right of context menu
5492 point(
5493 menu.bounds.right() + HOVER_POPOVER_GAP,
5494 y_for_horizontal_positioning,
5495 ),
5496 // top of context menu
5497 point(
5498 menu.bounds.left(),
5499 menu.bounds.top() - overall_height - HOVER_POPOVER_GAP,
5500 ),
5501 // bottom of context menu
5502 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5503 ];
5504 possible_origins.into_iter().find(|&origin| {
5505 Bounds::new(origin, size(total_width, overall_height))
5506 .is_contained_within(hitbox)
5507 })
5508 });
5509 if let Some(origin) = origin_surrounding_menu {
5510 let mut current_y = origin.y;
5511 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
5512 let size = popover.size;
5513 let popover_origin = point(origin.x, current_y);
5514
5515 window.defer_draw(popover.element, popover_origin, 2);
5516 if position != itertools::Position::Last {
5517 let origin = point(popover_origin.x, popover_origin.y + size.height);
5518 draw_occluder(size.width, origin, window, cx);
5519 }
5520
5521 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
5522 }
5523 } else {
5524 // fallback to existing above/below cursor logic
5525 // this might overlap menu or overflow in rare case
5526 if can_place_above {
5527 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
5528 } else {
5529 place_popovers_below(
5530 hovered_point,
5531 measured_hover_popovers,
5532 line_height,
5533 window,
5534 cx,
5535 );
5536 }
5537 }
5538 }
5539 }
5540
5541 fn layout_diff_hunk_controls(
5542 &self,
5543 row_range: Range<DisplayRow>,
5544 row_infos: &[RowInfo],
5545 text_hitbox: &Hitbox,
5546 newest_cursor_position: Option<DisplayPoint>,
5547 line_height: Pixels,
5548 right_margin: Pixels,
5549 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5550 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5551 highlighted_rows: &BTreeMap<DisplayRow, LineHighlight>,
5552 editor: Entity<Editor>,
5553 window: &mut Window,
5554 cx: &mut App,
5555 ) -> (Vec<AnyElement>, Vec<(DisplayRow, Bounds<Pixels>)>) {
5556 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
5557 let hovered_diff_hunk_row = editor.read(cx).hovered_diff_hunk_row;
5558
5559 let mut controls = vec![];
5560 let mut control_bounds = vec![];
5561
5562 let active_positions = [
5563 hovered_diff_hunk_row.map(|row| DisplayPoint::new(row, 0)),
5564 newest_cursor_position,
5565 ];
5566
5567 for (hunk, _) in display_hunks {
5568 if let DisplayDiffHunk::Unfolded {
5569 display_row_range,
5570 multi_buffer_range,
5571 status,
5572 is_created_file,
5573 ..
5574 } = &hunk
5575 {
5576 if display_row_range.start < row_range.start
5577 || display_row_range.start >= row_range.end
5578 {
5579 continue;
5580 }
5581 if highlighted_rows
5582 .get(&display_row_range.start)
5583 .and_then(|highlight| highlight.type_id)
5584 .is_some_and(|type_id| {
5585 [
5586 TypeId::of::<ConflictsOuter>(),
5587 TypeId::of::<ConflictsOursMarker>(),
5588 TypeId::of::<ConflictsOurs>(),
5589 TypeId::of::<ConflictsTheirs>(),
5590 TypeId::of::<ConflictsTheirsMarker>(),
5591 ]
5592 .contains(&type_id)
5593 })
5594 {
5595 continue;
5596 }
5597 let row_ix = (display_row_range.start - row_range.start).0 as usize;
5598 if row_infos[row_ix].diff_status.is_none() {
5599 continue;
5600 }
5601 if row_infos[row_ix]
5602 .diff_status
5603 .is_some_and(|status| status.is_added())
5604 && !status.is_added()
5605 {
5606 continue;
5607 }
5608
5609 if active_positions
5610 .iter()
5611 .any(|p| p.is_some_and(|p| display_row_range.contains(&p.row())))
5612 {
5613 let y = (display_row_range.start.as_f64()
5614 * ScrollPixelOffset::from(line_height)
5615 + ScrollPixelOffset::from(text_hitbox.bounds.top())
5616 - scroll_pixel_position.y)
5617 .into();
5618
5619 let mut element = render_diff_hunk_controls(
5620 display_row_range.start.0,
5621 status,
5622 multi_buffer_range.clone(),
5623 *is_created_file,
5624 line_height,
5625 &editor,
5626 window,
5627 cx,
5628 );
5629 let size =
5630 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
5631
5632 let x = text_hitbox.bounds.right() - right_margin - px(10.) - size.width;
5633
5634 let bounds = Bounds::new(gpui::Point::new(x, y), size);
5635 control_bounds.push((display_row_range.start, bounds));
5636
5637 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
5638 element.prepaint(window, cx)
5639 });
5640 controls.push(element);
5641 }
5642 }
5643 }
5644
5645 (controls, control_bounds)
5646 }
5647
5648 fn layout_signature_help(
5649 &self,
5650 hitbox: &Hitbox,
5651 content_origin: gpui::Point<Pixels>,
5652 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
5653 newest_selection_head: Option<DisplayPoint>,
5654 start_row: DisplayRow,
5655 line_layouts: &[LineWithInvisibles],
5656 line_height: Pixels,
5657 em_width: Pixels,
5658 context_menu_layout: Option<ContextMenuLayout>,
5659 window: &mut Window,
5660 cx: &mut App,
5661 ) {
5662 if !self.editor.focus_handle(cx).is_focused(window) {
5663 return;
5664 }
5665 let Some(newest_selection_head) = newest_selection_head else {
5666 return;
5667 };
5668
5669 let max_size = size(
5670 (120. * em_width) // Default size
5671 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
5672 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
5673 (16. * line_height) // Default size
5674 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
5675 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
5676 );
5677
5678 let maybe_element = self.editor.update(cx, |editor, cx| {
5679 if let Some(popover) = editor.signature_help_state.popover_mut() {
5680 let element = popover.render(max_size, window, cx);
5681 Some(element)
5682 } else {
5683 None
5684 }
5685 });
5686 let Some(mut element) = maybe_element else {
5687 return;
5688 };
5689
5690 let selection_row = newest_selection_head.row();
5691 let Some(cursor_row_layout) = (selection_row >= start_row)
5692 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
5693 .flatten()
5694 else {
5695 return;
5696 };
5697
5698 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
5699 - Pixels::from(scroll_pixel_position.x);
5700 let target_y = Pixels::from(
5701 selection_row.as_f64() * ScrollPixelOffset::from(line_height) - scroll_pixel_position.y,
5702 );
5703 let target_point = content_origin + point(target_x, target_y);
5704
5705 let actual_size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
5706
5707 let (popover_bounds_above, popover_bounds_below) = {
5708 let horizontal_offset = (hitbox.top_right().x
5709 - POPOVER_RIGHT_OFFSET
5710 - (target_point.x + actual_size.width))
5711 .min(Pixels::ZERO);
5712 let initial_x = target_point.x + horizontal_offset;
5713 (
5714 Bounds::new(
5715 point(initial_x, target_point.y - actual_size.height),
5716 actual_size,
5717 ),
5718 Bounds::new(
5719 point(initial_x, target_point.y + line_height + HOVER_POPOVER_GAP),
5720 actual_size,
5721 ),
5722 )
5723 };
5724
5725 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5726 context_menu_layout
5727 .as_ref()
5728 .is_some_and(|menu| bounds.intersects(&menu.bounds))
5729 };
5730
5731 let final_origin = if popover_bounds_above.is_contained_within(hitbox)
5732 && !intersects_menu(popover_bounds_above)
5733 {
5734 // try placing above cursor
5735 popover_bounds_above.origin
5736 } else if popover_bounds_below.is_contained_within(hitbox)
5737 && !intersects_menu(popover_bounds_below)
5738 {
5739 // try placing below cursor
5740 popover_bounds_below.origin
5741 } else {
5742 // try surrounding context menu if exists
5743 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5744 let y_for_horizontal_positioning = if menu.y_flipped {
5745 menu.bounds.bottom() - actual_size.height
5746 } else {
5747 menu.bounds.top()
5748 };
5749 let possible_origins = vec![
5750 // left of context menu
5751 point(
5752 menu.bounds.left() - actual_size.width - HOVER_POPOVER_GAP,
5753 y_for_horizontal_positioning,
5754 ),
5755 // right of context menu
5756 point(
5757 menu.bounds.right() + HOVER_POPOVER_GAP,
5758 y_for_horizontal_positioning,
5759 ),
5760 // top of context menu
5761 point(
5762 menu.bounds.left(),
5763 menu.bounds.top() - actual_size.height - HOVER_POPOVER_GAP,
5764 ),
5765 // bottom of context menu
5766 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5767 ];
5768 possible_origins
5769 .into_iter()
5770 .find(|&origin| Bounds::new(origin, actual_size).is_contained_within(hitbox))
5771 });
5772 origin_surrounding_menu.unwrap_or_else(|| {
5773 // fallback to existing above/below cursor logic
5774 // this might overlap menu or overflow in rare case
5775 if popover_bounds_above.is_contained_within(hitbox) {
5776 popover_bounds_above.origin
5777 } else {
5778 popover_bounds_below.origin
5779 }
5780 })
5781 };
5782
5783 window.defer_draw(element, final_origin, 2);
5784 }
5785
5786 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5787 window.paint_layer(layout.hitbox.bounds, |window| {
5788 let scroll_top = layout.position_map.snapshot.scroll_position().y;
5789 let gutter_bg = cx.theme().colors().editor_gutter_background;
5790 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
5791 window.paint_quad(fill(
5792 layout.position_map.text_hitbox.bounds,
5793 self.style.background,
5794 ));
5795
5796 if matches!(
5797 layout.mode,
5798 EditorMode::Full { .. } | EditorMode::Minimap { .. }
5799 ) {
5800 let show_active_line_background = match layout.mode {
5801 EditorMode::Full {
5802 show_active_line_background,
5803 ..
5804 } => show_active_line_background,
5805 EditorMode::Minimap { .. } => true,
5806 _ => false,
5807 };
5808 let mut active_rows = layout.active_rows.iter().peekable();
5809 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
5810 let mut end_row = start_row.0;
5811 while active_rows
5812 .peek()
5813 .is_some_and(|(active_row, has_selection)| {
5814 active_row.0 == end_row + 1
5815 && has_selection.selection == contains_non_empty_selection.selection
5816 })
5817 {
5818 active_rows.next().unwrap();
5819 end_row += 1;
5820 }
5821
5822 if show_active_line_background && !contains_non_empty_selection.selection {
5823 let highlight_h_range =
5824 match layout.position_map.snapshot.current_line_highlight {
5825 CurrentLineHighlight::Gutter => Some(Range {
5826 start: layout.hitbox.left(),
5827 end: layout.gutter_hitbox.right(),
5828 }),
5829 CurrentLineHighlight::Line => Some(Range {
5830 start: layout.position_map.text_hitbox.bounds.left(),
5831 end: layout.position_map.text_hitbox.bounds.right(),
5832 }),
5833 CurrentLineHighlight::All => Some(Range {
5834 start: layout.hitbox.left(),
5835 end: layout.hitbox.right(),
5836 }),
5837 CurrentLineHighlight::None => None,
5838 };
5839 if let Some(range) = highlight_h_range {
5840 let active_line_bg = cx.theme().colors().editor_active_line_background;
5841 let bounds = Bounds {
5842 origin: point(
5843 range.start,
5844 layout.hitbox.origin.y
5845 + Pixels::from(
5846 (start_row.as_f64() - scroll_top)
5847 * ScrollPixelOffset::from(
5848 layout.position_map.line_height,
5849 ),
5850 ),
5851 ),
5852 size: size(
5853 range.end - range.start,
5854 layout.position_map.line_height
5855 * (end_row - start_row.0 + 1) as f32,
5856 ),
5857 };
5858 window.paint_quad(fill(bounds, active_line_bg));
5859 }
5860 }
5861 }
5862
5863 let mut paint_highlight = |highlight_row_start: DisplayRow,
5864 highlight_row_end: DisplayRow,
5865 highlight: crate::LineHighlight,
5866 edges| {
5867 let mut origin_x = layout.hitbox.left();
5868 let mut width = layout.hitbox.size.width;
5869 if !highlight.include_gutter {
5870 origin_x += layout.gutter_hitbox.size.width;
5871 width -= layout.gutter_hitbox.size.width;
5872 }
5873
5874 let origin = point(
5875 origin_x,
5876 layout.hitbox.origin.y
5877 + Pixels::from(
5878 (highlight_row_start.as_f64() - scroll_top)
5879 * ScrollPixelOffset::from(layout.position_map.line_height),
5880 ),
5881 );
5882 let size = size(
5883 width,
5884 layout.position_map.line_height
5885 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
5886 );
5887 let mut quad = fill(Bounds { origin, size }, highlight.background);
5888 if let Some(border_color) = highlight.border {
5889 quad.border_color = border_color;
5890 quad.border_widths = edges
5891 }
5892 window.paint_quad(quad);
5893 };
5894
5895 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
5896 None;
5897 for (&new_row, &new_background) in &layout.highlighted_rows {
5898 match &mut current_paint {
5899 &mut Some((current_background, ref mut current_range, mut edges)) => {
5900 let new_range_started = current_background != new_background
5901 || current_range.end.next_row() != new_row;
5902 if new_range_started {
5903 if current_range.end.next_row() == new_row {
5904 edges.bottom = px(0.);
5905 };
5906 paint_highlight(
5907 current_range.start,
5908 current_range.end,
5909 current_background,
5910 edges,
5911 );
5912 let edges = Edges {
5913 top: if current_range.end.next_row() != new_row {
5914 px(1.)
5915 } else {
5916 px(0.)
5917 },
5918 bottom: px(1.),
5919 ..Default::default()
5920 };
5921 current_paint = Some((new_background, new_row..new_row, edges));
5922 continue;
5923 } else {
5924 current_range.end = current_range.end.next_row();
5925 }
5926 }
5927 None => {
5928 let edges = Edges {
5929 top: px(1.),
5930 bottom: px(1.),
5931 ..Default::default()
5932 };
5933 current_paint = Some((new_background, new_row..new_row, edges))
5934 }
5935 };
5936 }
5937 if let Some((color, range, edges)) = current_paint {
5938 paint_highlight(range.start, range.end, color, edges);
5939 }
5940
5941 for (guide_x, active) in layout.wrap_guides.iter() {
5942 let color = if *active {
5943 cx.theme().colors().editor_active_wrap_guide
5944 } else {
5945 cx.theme().colors().editor_wrap_guide
5946 };
5947 window.paint_quad(fill(
5948 Bounds {
5949 origin: point(*guide_x, layout.position_map.text_hitbox.origin.y),
5950 size: size(px(1.), layout.position_map.text_hitbox.size.height),
5951 },
5952 color,
5953 ));
5954 }
5955 }
5956 })
5957 }
5958
5959 fn paint_indent_guides(
5960 &mut self,
5961 layout: &mut EditorLayout,
5962 window: &mut Window,
5963 cx: &mut App,
5964 ) {
5965 let Some(indent_guides) = &layout.indent_guides else {
5966 return;
5967 };
5968
5969 let faded_color = |color: Hsla, alpha: f32| {
5970 let mut faded = color;
5971 faded.a = alpha;
5972 faded
5973 };
5974
5975 for indent_guide in indent_guides {
5976 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
5977 let settings = &indent_guide.settings;
5978
5979 // TODO fixed for now, expose them through themes later
5980 const INDENT_AWARE_ALPHA: f32 = 0.2;
5981 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
5982 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
5983 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
5984
5985 let line_color = match (settings.coloring, indent_guide.active) {
5986 (IndentGuideColoring::Disabled, _) => None,
5987 (IndentGuideColoring::Fixed, false) => {
5988 Some(cx.theme().colors().editor_indent_guide)
5989 }
5990 (IndentGuideColoring::Fixed, true) => {
5991 Some(cx.theme().colors().editor_indent_guide_active)
5992 }
5993 (IndentGuideColoring::IndentAware, false) => {
5994 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
5995 }
5996 (IndentGuideColoring::IndentAware, true) => {
5997 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
5998 }
5999 };
6000
6001 let background_color = match (settings.background_coloring, indent_guide.active) {
6002 (IndentGuideBackgroundColoring::Disabled, _) => None,
6003 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
6004 indent_accent_colors,
6005 INDENT_AWARE_BACKGROUND_ALPHA,
6006 )),
6007 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
6008 indent_accent_colors,
6009 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
6010 )),
6011 };
6012
6013 let requested_line_width = if indent_guide.active {
6014 settings.active_line_width
6015 } else {
6016 settings.line_width
6017 }
6018 .clamp(1, 10);
6019 let mut line_indicator_width = 0.;
6020 if let Some(color) = line_color {
6021 window.paint_quad(fill(
6022 Bounds {
6023 origin: indent_guide.origin,
6024 size: size(px(requested_line_width as f32), indent_guide.length),
6025 },
6026 color,
6027 ));
6028 line_indicator_width = requested_line_width as f32;
6029 }
6030
6031 if let Some(color) = background_color {
6032 let width = indent_guide.single_indent_width - px(line_indicator_width);
6033 window.paint_quad(fill(
6034 Bounds {
6035 origin: point(
6036 indent_guide.origin.x + px(line_indicator_width),
6037 indent_guide.origin.y,
6038 ),
6039 size: size(width, indent_guide.length),
6040 },
6041 color,
6042 ));
6043 }
6044 }
6045 }
6046
6047 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6048 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
6049
6050 let line_height = layout.position_map.line_height;
6051 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
6052
6053 for line_layout in layout.line_numbers.values() {
6054 for LineNumberSegment {
6055 shaped_line,
6056 hitbox,
6057 } in &line_layout.segments
6058 {
6059 let Some(hitbox) = hitbox else {
6060 continue;
6061 };
6062
6063 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
6064 let color = cx.theme().colors().editor_hover_line_number;
6065
6066 let line = self.shape_line_number(shaped_line.text.clone(), color, window);
6067 line.paint(hitbox.origin, line_height, window, cx).log_err()
6068 } else {
6069 shaped_line
6070 .paint(hitbox.origin, line_height, window, cx)
6071 .log_err()
6072 }) else {
6073 continue;
6074 };
6075
6076 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
6077 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
6078 if is_singleton {
6079 window.set_cursor_style(CursorStyle::IBeam, hitbox);
6080 } else {
6081 window.set_cursor_style(CursorStyle::PointingHand, hitbox);
6082 }
6083 }
6084 }
6085 }
6086
6087 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6088 if layout.display_hunks.is_empty() {
6089 return;
6090 }
6091
6092 let line_height = layout.position_map.line_height;
6093 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6094 for (hunk, hitbox) in &layout.display_hunks {
6095 let hunk_to_paint = match hunk {
6096 DisplayDiffHunk::Folded { .. } => {
6097 let hunk_bounds = Self::diff_hunk_bounds(
6098 &layout.position_map.snapshot,
6099 line_height,
6100 layout.gutter_hitbox.bounds,
6101 hunk,
6102 );
6103 Some((
6104 hunk_bounds,
6105 cx.theme().colors().version_control_modified,
6106 Corners::all(px(0.)),
6107 DiffHunkStatus::modified_none(),
6108 ))
6109 }
6110 DisplayDiffHunk::Unfolded {
6111 status,
6112 display_row_range,
6113 ..
6114 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
6115 DiffHunkStatusKind::Added => (
6116 hunk_hitbox.bounds,
6117 cx.theme().colors().version_control_added,
6118 Corners::all(px(0.)),
6119 *status,
6120 ),
6121 DiffHunkStatusKind::Modified => (
6122 hunk_hitbox.bounds,
6123 cx.theme().colors().version_control_modified,
6124 Corners::all(px(0.)),
6125 *status,
6126 ),
6127 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
6128 hunk_hitbox.bounds,
6129 cx.theme().colors().version_control_deleted,
6130 Corners::all(px(0.)),
6131 *status,
6132 ),
6133 DiffHunkStatusKind::Deleted => (
6134 Bounds::new(
6135 point(
6136 hunk_hitbox.origin.x - hunk_hitbox.size.width,
6137 hunk_hitbox.origin.y,
6138 ),
6139 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
6140 ),
6141 cx.theme().colors().version_control_deleted,
6142 Corners::all(1. * line_height),
6143 *status,
6144 ),
6145 }),
6146 };
6147
6148 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
6149 // Flatten the background color with the editor color to prevent
6150 // elements below transparent hunks from showing through
6151 let flattened_background_color = cx
6152 .theme()
6153 .colors()
6154 .editor_background
6155 .blend(background_color);
6156
6157 if !Self::diff_hunk_hollow(status, cx) {
6158 window.paint_quad(quad(
6159 hunk_bounds,
6160 corner_radii,
6161 flattened_background_color,
6162 Edges::default(),
6163 transparent_black(),
6164 BorderStyle::default(),
6165 ));
6166 } else {
6167 let flattened_unstaged_background_color = cx
6168 .theme()
6169 .colors()
6170 .editor_background
6171 .blend(background_color.opacity(0.3));
6172
6173 window.paint_quad(quad(
6174 hunk_bounds,
6175 corner_radii,
6176 flattened_unstaged_background_color,
6177 Edges::all(px(1.0)),
6178 flattened_background_color,
6179 BorderStyle::Solid,
6180 ));
6181 }
6182 }
6183 }
6184 });
6185 }
6186
6187 fn gutter_strip_width(line_height: Pixels) -> Pixels {
6188 (0.275 * line_height).floor()
6189 }
6190
6191 fn diff_hunk_bounds(
6192 snapshot: &EditorSnapshot,
6193 line_height: Pixels,
6194 gutter_bounds: Bounds<Pixels>,
6195 hunk: &DisplayDiffHunk,
6196 ) -> Bounds<Pixels> {
6197 let scroll_position = snapshot.scroll_position();
6198 let scroll_top = scroll_position.y * ScrollPixelOffset::from(line_height);
6199 let gutter_strip_width = Self::gutter_strip_width(line_height);
6200
6201 match hunk {
6202 DisplayDiffHunk::Folded { display_row, .. } => {
6203 let start_y = (display_row.as_f64() * ScrollPixelOffset::from(line_height)
6204 - scroll_top)
6205 .into();
6206 let end_y = start_y + line_height;
6207 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6208 let highlight_size = size(gutter_strip_width, end_y - start_y);
6209 Bounds::new(highlight_origin, highlight_size)
6210 }
6211 DisplayDiffHunk::Unfolded {
6212 display_row_range,
6213 status,
6214 ..
6215 } => {
6216 if status.is_deleted() && display_row_range.is_empty() {
6217 let row = display_row_range.start;
6218
6219 let offset = ScrollPixelOffset::from(line_height / 2.);
6220 let start_y =
6221 (row.as_f64() * ScrollPixelOffset::from(line_height) - offset - scroll_top)
6222 .into();
6223 let end_y = start_y + line_height;
6224
6225 let width = (0.35 * line_height).floor();
6226 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6227 let highlight_size = size(width, end_y - start_y);
6228 Bounds::new(highlight_origin, highlight_size)
6229 } else {
6230 let start_row = display_row_range.start;
6231 let end_row = display_row_range.end;
6232 // If we're in a multibuffer, row range span might include an
6233 // excerpt header, so if we were to draw the marker straight away,
6234 // the hunk might include the rows of that header.
6235 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
6236 // Instead, we simply check whether the range we're dealing with includes
6237 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
6238 let end_row_in_current_excerpt = snapshot
6239 .blocks_in_range(start_row..end_row)
6240 .find_map(|(start_row, block)| {
6241 if matches!(
6242 block,
6243 Block::ExcerptBoundary { .. } | Block::BufferHeader { .. }
6244 ) {
6245 Some(start_row)
6246 } else {
6247 None
6248 }
6249 })
6250 .unwrap_or(end_row);
6251
6252 let start_y = (start_row.as_f64() * ScrollPixelOffset::from(line_height)
6253 - scroll_top)
6254 .into();
6255 let end_y = Pixels::from(
6256 end_row_in_current_excerpt.as_f64() * ScrollPixelOffset::from(line_height)
6257 - scroll_top,
6258 );
6259
6260 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
6261 let highlight_size = size(gutter_strip_width, end_y - start_y);
6262 Bounds::new(highlight_origin, highlight_size)
6263 }
6264 }
6265 }
6266 }
6267
6268 fn paint_gutter_indicators(
6269 &self,
6270 layout: &mut EditorLayout,
6271 window: &mut Window,
6272 cx: &mut App,
6273 ) {
6274 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6275 window.with_element_namespace("crease_toggles", |window| {
6276 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
6277 crease_toggle.paint(window, cx);
6278 }
6279 });
6280
6281 window.with_element_namespace("expand_toggles", |window| {
6282 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
6283 expand_toggle.paint(window, cx);
6284 }
6285 });
6286
6287 for breakpoint in layout.breakpoints.iter_mut() {
6288 breakpoint.paint(window, cx);
6289 }
6290
6291 for test_indicator in layout.test_indicators.iter_mut() {
6292 test_indicator.paint(window, cx);
6293 }
6294 });
6295 }
6296
6297 fn paint_gutter_highlights(
6298 &self,
6299 layout: &mut EditorLayout,
6300 window: &mut Window,
6301 cx: &mut App,
6302 ) {
6303 for (_, hunk_hitbox) in &layout.display_hunks {
6304 if let Some(hunk_hitbox) = hunk_hitbox
6305 && !self
6306 .editor
6307 .read(cx)
6308 .buffer()
6309 .read(cx)
6310 .all_diff_hunks_expanded()
6311 {
6312 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
6313 }
6314 }
6315
6316 let show_git_gutter = layout
6317 .position_map
6318 .snapshot
6319 .show_git_diff_gutter
6320 .unwrap_or_else(|| {
6321 matches!(
6322 ProjectSettings::get_global(cx).git.git_gutter,
6323 GitGutterSetting::TrackedFiles
6324 )
6325 });
6326 if show_git_gutter {
6327 Self::paint_gutter_diff_hunks(layout, window, cx)
6328 }
6329
6330 let highlight_width = 0.275 * layout.position_map.line_height;
6331 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
6332 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6333 for (range, color) in &layout.highlighted_gutter_ranges {
6334 let start_row = if range.start.row() < layout.visible_display_row_range.start {
6335 layout.visible_display_row_range.start - DisplayRow(1)
6336 } else {
6337 range.start.row()
6338 };
6339 let end_row = if range.end.row() > layout.visible_display_row_range.end {
6340 layout.visible_display_row_range.end + DisplayRow(1)
6341 } else {
6342 range.end.row()
6343 };
6344
6345 let start_y = layout.gutter_hitbox.top()
6346 + Pixels::from(
6347 start_row.0 as f64
6348 * ScrollPixelOffset::from(layout.position_map.line_height)
6349 - layout.position_map.scroll_pixel_position.y,
6350 );
6351 let end_y = layout.gutter_hitbox.top()
6352 + Pixels::from(
6353 (end_row.0 + 1) as f64
6354 * ScrollPixelOffset::from(layout.position_map.line_height)
6355 - layout.position_map.scroll_pixel_position.y,
6356 );
6357 let bounds = Bounds::from_corners(
6358 point(layout.gutter_hitbox.left(), start_y),
6359 point(layout.gutter_hitbox.left() + highlight_width, end_y),
6360 );
6361 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
6362 }
6363 });
6364 }
6365
6366 fn paint_blamed_display_rows(
6367 &self,
6368 layout: &mut EditorLayout,
6369 window: &mut Window,
6370 cx: &mut App,
6371 ) {
6372 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
6373 return;
6374 };
6375
6376 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
6377 for mut blame_element in blamed_display_rows.into_iter() {
6378 blame_element.paint(window, cx);
6379 }
6380 })
6381 }
6382
6383 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6384 window.with_content_mask(
6385 Some(ContentMask {
6386 bounds: layout.position_map.text_hitbox.bounds,
6387 }),
6388 |window| {
6389 let editor = self.editor.read(cx);
6390 if editor.mouse_cursor_hidden {
6391 window.set_window_cursor_style(CursorStyle::None);
6392 } else if let SelectionDragState::ReadyToDrag {
6393 mouse_down_time, ..
6394 } = &editor.selection_drag_state
6395 {
6396 let drag_and_drop_delay = Duration::from_millis(
6397 EditorSettings::get_global(cx)
6398 .drag_and_drop_selection
6399 .delay
6400 .0,
6401 );
6402 if mouse_down_time.elapsed() >= drag_and_drop_delay {
6403 window.set_cursor_style(
6404 CursorStyle::DragCopy,
6405 &layout.position_map.text_hitbox,
6406 );
6407 }
6408 } else if matches!(
6409 editor.selection_drag_state,
6410 SelectionDragState::Dragging { .. }
6411 ) {
6412 window
6413 .set_cursor_style(CursorStyle::DragCopy, &layout.position_map.text_hitbox);
6414 } else if editor
6415 .hovered_link_state
6416 .as_ref()
6417 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
6418 {
6419 window.set_cursor_style(
6420 CursorStyle::PointingHand,
6421 &layout.position_map.text_hitbox,
6422 );
6423 } else {
6424 window.set_cursor_style(CursorStyle::IBeam, &layout.position_map.text_hitbox);
6425 };
6426
6427 self.paint_lines_background(layout, window, cx);
6428 let invisible_display_ranges = self.paint_highlights(layout, window, cx);
6429 self.paint_document_colors(layout, window);
6430 self.paint_lines(&invisible_display_ranges, layout, window, cx);
6431 self.paint_redactions(layout, window);
6432 self.paint_cursors(layout, window, cx);
6433 self.paint_inline_diagnostics(layout, window, cx);
6434 self.paint_inline_blame(layout, window, cx);
6435 self.paint_inline_code_actions(layout, window, cx);
6436 self.paint_diff_hunk_controls(layout, window, cx);
6437 window.with_element_namespace("crease_trailers", |window| {
6438 for trailer in layout.crease_trailers.iter_mut().flatten() {
6439 trailer.element.paint(window, cx);
6440 }
6441 });
6442 },
6443 )
6444 }
6445
6446 fn paint_highlights(
6447 &mut self,
6448 layout: &mut EditorLayout,
6449 window: &mut Window,
6450 cx: &mut App,
6451 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
6452 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6453 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
6454 let line_end_overshoot = 0.15 * layout.position_map.line_height;
6455 for (range, color) in &layout.highlighted_ranges {
6456 self.paint_highlighted_range(
6457 range.clone(),
6458 true,
6459 *color,
6460 Pixels::ZERO,
6461 line_end_overshoot,
6462 layout,
6463 window,
6464 );
6465 }
6466
6467 let corner_radius = if EditorSettings::get_global(cx).rounded_selection {
6468 0.15 * layout.position_map.line_height
6469 } else {
6470 Pixels::ZERO
6471 };
6472
6473 for (player_color, selections) in &layout.selections {
6474 for selection in selections.iter() {
6475 self.paint_highlighted_range(
6476 selection.range.clone(),
6477 true,
6478 player_color.selection,
6479 corner_radius,
6480 corner_radius * 2.,
6481 layout,
6482 window,
6483 );
6484
6485 if selection.is_local && !selection.range.is_empty() {
6486 invisible_display_ranges.push(selection.range.clone());
6487 }
6488 }
6489 }
6490 invisible_display_ranges
6491 })
6492 }
6493
6494 fn paint_lines(
6495 &mut self,
6496 invisible_display_ranges: &[Range<DisplayPoint>],
6497 layout: &mut EditorLayout,
6498 window: &mut Window,
6499 cx: &mut App,
6500 ) {
6501 let whitespace_setting = self
6502 .editor
6503 .read(cx)
6504 .buffer
6505 .read(cx)
6506 .language_settings(cx)
6507 .show_whitespaces;
6508
6509 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6510 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6511 line_with_invisibles.draw(
6512 layout,
6513 row,
6514 layout.content_origin,
6515 whitespace_setting,
6516 invisible_display_ranges,
6517 window,
6518 cx,
6519 )
6520 }
6521
6522 for line_element in &mut layout.line_elements {
6523 line_element.paint(window, cx);
6524 }
6525 }
6526
6527 fn paint_sticky_headers(
6528 &mut self,
6529 layout: &mut EditorLayout,
6530 window: &mut Window,
6531 cx: &mut App,
6532 ) {
6533 let Some(mut sticky_headers) = layout.sticky_headers.take() else {
6534 return;
6535 };
6536
6537 if sticky_headers.lines.is_empty() {
6538 layout.sticky_headers = Some(sticky_headers);
6539 return;
6540 }
6541
6542 let whitespace_setting = self
6543 .editor
6544 .read(cx)
6545 .buffer
6546 .read(cx)
6547 .language_settings(cx)
6548 .show_whitespaces;
6549 sticky_headers.paint(layout, whitespace_setting, window, cx);
6550
6551 let sticky_header_hitboxes: Vec<Hitbox> = sticky_headers
6552 .lines
6553 .iter()
6554 .map(|line| line.hitbox.clone())
6555 .collect();
6556 let hovered_hitbox = sticky_header_hitboxes
6557 .iter()
6558 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6559
6560 window.on_mouse_event(move |_: &MouseMoveEvent, phase, window, _cx| {
6561 if !phase.bubble() {
6562 return;
6563 }
6564
6565 let current_hover = sticky_header_hitboxes
6566 .iter()
6567 .find_map(|hitbox| hitbox.is_hovered(window).then_some(hitbox.id));
6568 if hovered_hitbox != current_hover {
6569 window.refresh();
6570 }
6571 });
6572
6573 for (line_index, line) in sticky_headers.lines.iter().enumerate() {
6574 let editor = self.editor.clone();
6575 let hitbox = line.hitbox.clone();
6576 let target_anchor = line.target_anchor;
6577 window.on_mouse_event(move |event: &MouseDownEvent, phase, window, cx| {
6578 if !phase.bubble() {
6579 return;
6580 }
6581
6582 if event.button == MouseButton::Left && hitbox.is_hovered(window) {
6583 editor.update(cx, |editor, cx| {
6584 editor.change_selections(
6585 SelectionEffects::scroll(Autoscroll::top_relative(line_index)),
6586 window,
6587 cx,
6588 |selections| selections.select_ranges([target_anchor..target_anchor]),
6589 );
6590 cx.stop_propagation();
6591 });
6592 }
6593 });
6594 }
6595
6596 let text_bounds = layout.position_map.text_hitbox.bounds;
6597 let border_top = text_bounds.top()
6598 + sticky_headers.lines.last().unwrap().offset
6599 + layout.position_map.line_height;
6600 let separator_height = px(1.);
6601 let border_bounds = Bounds::from_corners(
6602 point(layout.gutter_hitbox.bounds.left(), border_top),
6603 point(text_bounds.right(), border_top + separator_height),
6604 );
6605 window.paint_quad(fill(border_bounds, cx.theme().colors().border_variant));
6606
6607 layout.sticky_headers = Some(sticky_headers);
6608 }
6609
6610 fn paint_lines_background(
6611 &mut self,
6612 layout: &mut EditorLayout,
6613 window: &mut Window,
6614 cx: &mut App,
6615 ) {
6616 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
6617 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
6618 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
6619 }
6620 }
6621
6622 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
6623 if layout.redacted_ranges.is_empty() {
6624 return;
6625 }
6626
6627 let line_end_overshoot = layout.line_end_overshoot();
6628
6629 // A softer than perfect black
6630 let redaction_color = gpui::rgb(0x0e1111);
6631
6632 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6633 for range in layout.redacted_ranges.iter() {
6634 self.paint_highlighted_range(
6635 range.clone(),
6636 true,
6637 redaction_color.into(),
6638 Pixels::ZERO,
6639 line_end_overshoot,
6640 layout,
6641 window,
6642 );
6643 }
6644 });
6645 }
6646
6647 fn paint_document_colors(&self, layout: &mut EditorLayout, window: &mut Window) {
6648 let Some((colors_render_mode, image_colors)) = &layout.document_colors else {
6649 return;
6650 };
6651 if image_colors.is_empty()
6652 || colors_render_mode == &DocumentColorsRenderMode::None
6653 || colors_render_mode == &DocumentColorsRenderMode::Inlay
6654 {
6655 return;
6656 }
6657
6658 let line_end_overshoot = layout.line_end_overshoot();
6659
6660 for (range, color) in image_colors {
6661 match colors_render_mode {
6662 DocumentColorsRenderMode::Inlay | DocumentColorsRenderMode::None => return,
6663 DocumentColorsRenderMode::Background => {
6664 self.paint_highlighted_range(
6665 range.clone(),
6666 true,
6667 *color,
6668 Pixels::ZERO,
6669 line_end_overshoot,
6670 layout,
6671 window,
6672 );
6673 }
6674 DocumentColorsRenderMode::Border => {
6675 self.paint_highlighted_range(
6676 range.clone(),
6677 false,
6678 *color,
6679 Pixels::ZERO,
6680 line_end_overshoot,
6681 layout,
6682 window,
6683 );
6684 }
6685 }
6686 }
6687 }
6688
6689 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6690 for cursor in &mut layout.visible_cursors {
6691 cursor.paint(layout.content_origin, window, cx);
6692 }
6693 }
6694
6695 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6696 let Some(scrollbars_layout) = layout.scrollbars_layout.take() else {
6697 return;
6698 };
6699 let any_scrollbar_dragged = self.editor.read(cx).scroll_manager.any_scrollbar_dragged();
6700
6701 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
6702 let hitbox = &scrollbar_layout.hitbox;
6703 if scrollbars_layout.visible {
6704 let scrollbar_edges = match axis {
6705 ScrollbarAxis::Horizontal => Edges {
6706 top: Pixels::ZERO,
6707 right: Pixels::ZERO,
6708 bottom: Pixels::ZERO,
6709 left: Pixels::ZERO,
6710 },
6711 ScrollbarAxis::Vertical => Edges {
6712 top: Pixels::ZERO,
6713 right: Pixels::ZERO,
6714 bottom: Pixels::ZERO,
6715 left: ScrollbarLayout::BORDER_WIDTH,
6716 },
6717 };
6718
6719 window.paint_layer(hitbox.bounds, |window| {
6720 window.paint_quad(quad(
6721 hitbox.bounds,
6722 Corners::default(),
6723 cx.theme().colors().scrollbar_track_background,
6724 scrollbar_edges,
6725 cx.theme().colors().scrollbar_track_border,
6726 BorderStyle::Solid,
6727 ));
6728
6729 if axis == ScrollbarAxis::Vertical {
6730 let fast_markers =
6731 self.collect_fast_scrollbar_markers(layout, scrollbar_layout, cx);
6732 // Refresh slow scrollbar markers in the background. Below, we
6733 // paint whatever markers have already been computed.
6734 self.refresh_slow_scrollbar_markers(layout, scrollbar_layout, window, cx);
6735
6736 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
6737 for marker in markers.iter().chain(&fast_markers) {
6738 let mut marker = marker.clone();
6739 marker.bounds.origin += hitbox.origin;
6740 window.paint_quad(marker);
6741 }
6742 }
6743
6744 if let Some(thumb_bounds) = scrollbar_layout.thumb_bounds {
6745 let scrollbar_thumb_color = match scrollbar_layout.thumb_state {
6746 ScrollbarThumbState::Dragging => {
6747 cx.theme().colors().scrollbar_thumb_active_background
6748 }
6749 ScrollbarThumbState::Hovered => {
6750 cx.theme().colors().scrollbar_thumb_hover_background
6751 }
6752 ScrollbarThumbState::Idle => {
6753 cx.theme().colors().scrollbar_thumb_background
6754 }
6755 };
6756 window.paint_quad(quad(
6757 thumb_bounds,
6758 Corners::default(),
6759 scrollbar_thumb_color,
6760 scrollbar_edges,
6761 cx.theme().colors().scrollbar_thumb_border,
6762 BorderStyle::Solid,
6763 ));
6764
6765 if any_scrollbar_dragged {
6766 window.set_window_cursor_style(CursorStyle::Arrow);
6767 } else {
6768 window.set_cursor_style(CursorStyle::Arrow, hitbox);
6769 }
6770 }
6771 })
6772 }
6773 }
6774
6775 window.on_mouse_event({
6776 let editor = self.editor.clone();
6777 let scrollbars_layout = scrollbars_layout.clone();
6778
6779 let mut mouse_position = window.mouse_position();
6780 move |event: &MouseMoveEvent, phase, window, cx| {
6781 if phase == DispatchPhase::Capture {
6782 return;
6783 }
6784
6785 editor.update(cx, |editor, cx| {
6786 if let Some((scrollbar_layout, axis)) = event
6787 .pressed_button
6788 .filter(|button| *button == MouseButton::Left)
6789 .and(editor.scroll_manager.dragging_scrollbar_axis())
6790 .and_then(|axis| {
6791 scrollbars_layout
6792 .iter_scrollbars()
6793 .find(|(_, a)| *a == axis)
6794 })
6795 {
6796 let ScrollbarLayout {
6797 hitbox,
6798 text_unit_size,
6799 ..
6800 } = scrollbar_layout;
6801
6802 let old_position = mouse_position.along(axis);
6803 let new_position = event.position.along(axis);
6804 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
6805 .contains(&old_position)
6806 {
6807 let position = editor.scroll_position(cx).apply_along(axis, |p| {
6808 (p + ScrollOffset::from(
6809 (new_position - old_position) / *text_unit_size,
6810 ))
6811 .max(0.)
6812 });
6813 editor.set_scroll_position(position, window, cx);
6814 }
6815
6816 editor.scroll_manager.show_scrollbars(window, cx);
6817 cx.stop_propagation();
6818 } else if let Some((layout, axis)) = scrollbars_layout
6819 .get_hovered_axis(window)
6820 .filter(|_| !event.dragging())
6821 {
6822 if layout.thumb_hovered(&event.position) {
6823 editor
6824 .scroll_manager
6825 .set_hovered_scroll_thumb_axis(axis, cx);
6826 } else {
6827 editor.scroll_manager.reset_scrollbar_state(cx);
6828 }
6829
6830 editor.scroll_manager.show_scrollbars(window, cx);
6831 } else {
6832 editor.scroll_manager.reset_scrollbar_state(cx);
6833 }
6834
6835 mouse_position = event.position;
6836 })
6837 }
6838 });
6839
6840 if any_scrollbar_dragged {
6841 window.on_mouse_event({
6842 let editor = self.editor.clone();
6843 move |_: &MouseUpEvent, phase, window, cx| {
6844 if phase == DispatchPhase::Capture {
6845 return;
6846 }
6847
6848 editor.update(cx, |editor, cx| {
6849 if let Some((_, axis)) = scrollbars_layout.get_hovered_axis(window) {
6850 editor
6851 .scroll_manager
6852 .set_hovered_scroll_thumb_axis(axis, cx);
6853 } else {
6854 editor.scroll_manager.reset_scrollbar_state(cx);
6855 }
6856 cx.stop_propagation();
6857 });
6858 }
6859 });
6860 } else {
6861 window.on_mouse_event({
6862 let editor = self.editor.clone();
6863
6864 move |event: &MouseDownEvent, phase, window, cx| {
6865 if phase == DispatchPhase::Capture {
6866 return;
6867 }
6868 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
6869 else {
6870 return;
6871 };
6872
6873 let ScrollbarLayout {
6874 hitbox,
6875 visible_range,
6876 text_unit_size,
6877 thumb_bounds,
6878 ..
6879 } = scrollbar_layout;
6880
6881 let Some(thumb_bounds) = thumb_bounds else {
6882 return;
6883 };
6884
6885 editor.update(cx, |editor, cx| {
6886 editor
6887 .scroll_manager
6888 .set_dragged_scroll_thumb_axis(axis, cx);
6889
6890 let event_position = event.position.along(axis);
6891
6892 if event_position < thumb_bounds.origin.along(axis)
6893 || thumb_bounds.bottom_right().along(axis) < event_position
6894 {
6895 let center_position = ((event_position - hitbox.origin.along(axis))
6896 / *text_unit_size)
6897 .round() as u32;
6898 let start_position = center_position.saturating_sub(
6899 (visible_range.end - visible_range.start) as u32 / 2,
6900 );
6901
6902 let position = editor
6903 .scroll_position(cx)
6904 .apply_along(axis, |_| start_position as ScrollOffset);
6905
6906 editor.set_scroll_position(position, window, cx);
6907 } else {
6908 editor.scroll_manager.show_scrollbars(window, cx);
6909 }
6910
6911 cx.stop_propagation();
6912 });
6913 }
6914 });
6915 }
6916 }
6917
6918 fn collect_fast_scrollbar_markers(
6919 &self,
6920 layout: &EditorLayout,
6921 scrollbar_layout: &ScrollbarLayout,
6922 cx: &mut App,
6923 ) -> Vec<PaintQuad> {
6924 const LIMIT: usize = 100;
6925 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
6926 return vec![];
6927 }
6928 let cursor_ranges = layout
6929 .cursors
6930 .iter()
6931 .map(|(point, color)| ColoredRange {
6932 start: point.row(),
6933 end: point.row(),
6934 color: *color,
6935 })
6936 .collect_vec();
6937 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
6938 }
6939
6940 fn refresh_slow_scrollbar_markers(
6941 &self,
6942 layout: &EditorLayout,
6943 scrollbar_layout: &ScrollbarLayout,
6944 window: &mut Window,
6945 cx: &mut App,
6946 ) {
6947 self.editor.update(cx, |editor, cx| {
6948 if editor.buffer_kind(cx) != ItemBufferKind::Singleton
6949 || !editor
6950 .scrollbar_marker_state
6951 .should_refresh(scrollbar_layout.hitbox.size)
6952 {
6953 return;
6954 }
6955
6956 let scrollbar_layout = scrollbar_layout.clone();
6957 let background_highlights = editor.background_highlights.clone();
6958 let snapshot = layout.position_map.snapshot.clone();
6959 let theme = cx.theme().clone();
6960 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
6961
6962 editor.scrollbar_marker_state.dirty = false;
6963 editor.scrollbar_marker_state.pending_refresh =
6964 Some(cx.spawn_in(window, async move |editor, cx| {
6965 let scrollbar_size = scrollbar_layout.hitbox.size;
6966 let scrollbar_markers = cx
6967 .background_spawn(async move {
6968 let max_point = snapshot.display_snapshot.buffer_snapshot().max_point();
6969 let mut marker_quads = Vec::new();
6970 if scrollbar_settings.git_diff {
6971 let marker_row_ranges =
6972 snapshot.buffer_snapshot().diff_hunks().map(|hunk| {
6973 let start_display_row =
6974 MultiBufferPoint::new(hunk.row_range.start.0, 0)
6975 .to_display_point(&snapshot.display_snapshot)
6976 .row();
6977 let mut end_display_row =
6978 MultiBufferPoint::new(hunk.row_range.end.0, 0)
6979 .to_display_point(&snapshot.display_snapshot)
6980 .row();
6981 if end_display_row != start_display_row {
6982 end_display_row.0 -= 1;
6983 }
6984 let color = match &hunk.status().kind {
6985 DiffHunkStatusKind::Added => {
6986 theme.colors().version_control_added
6987 }
6988 DiffHunkStatusKind::Modified => {
6989 theme.colors().version_control_modified
6990 }
6991 DiffHunkStatusKind::Deleted => {
6992 theme.colors().version_control_deleted
6993 }
6994 };
6995 ColoredRange {
6996 start: start_display_row,
6997 end: end_display_row,
6998 color,
6999 }
7000 });
7001
7002 marker_quads.extend(
7003 scrollbar_layout
7004 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
7005 );
7006 }
7007
7008 for (background_highlight_id, (_, background_ranges)) in
7009 background_highlights.iter()
7010 {
7011 let is_search_highlights = *background_highlight_id
7012 == HighlightKey::Type(TypeId::of::<BufferSearchHighlights>());
7013 let is_text_highlights = *background_highlight_id
7014 == HighlightKey::Type(TypeId::of::<SelectedTextHighlight>());
7015 let is_symbol_occurrences = *background_highlight_id
7016 == HighlightKey::Type(TypeId::of::<DocumentHighlightRead>())
7017 || *background_highlight_id
7018 == HighlightKey::Type(
7019 TypeId::of::<DocumentHighlightWrite>(),
7020 );
7021 if (is_search_highlights && scrollbar_settings.search_results)
7022 || (is_text_highlights && scrollbar_settings.selected_text)
7023 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
7024 {
7025 let mut color = theme.status().info;
7026 if is_symbol_occurrences {
7027 color.fade_out(0.5);
7028 }
7029 let marker_row_ranges = background_ranges.iter().map(|range| {
7030 let display_start = range
7031 .start
7032 .to_display_point(&snapshot.display_snapshot);
7033 let display_end =
7034 range.end.to_display_point(&snapshot.display_snapshot);
7035 ColoredRange {
7036 start: display_start.row(),
7037 end: display_end.row(),
7038 color,
7039 }
7040 });
7041 marker_quads.extend(
7042 scrollbar_layout
7043 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
7044 );
7045 }
7046 }
7047
7048 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
7049 let diagnostics = snapshot
7050 .buffer_snapshot()
7051 .diagnostics_in_range::<Point>(Point::zero()..max_point)
7052 // Don't show diagnostics the user doesn't care about
7053 .filter(|diagnostic| {
7054 match (
7055 scrollbar_settings.diagnostics,
7056 diagnostic.diagnostic.severity,
7057 ) {
7058 (ScrollbarDiagnostics::All, _) => true,
7059 (
7060 ScrollbarDiagnostics::Error,
7061 lsp::DiagnosticSeverity::ERROR,
7062 ) => true,
7063 (
7064 ScrollbarDiagnostics::Warning,
7065 lsp::DiagnosticSeverity::ERROR
7066 | lsp::DiagnosticSeverity::WARNING,
7067 ) => true,
7068 (
7069 ScrollbarDiagnostics::Information,
7070 lsp::DiagnosticSeverity::ERROR
7071 | lsp::DiagnosticSeverity::WARNING
7072 | lsp::DiagnosticSeverity::INFORMATION,
7073 ) => true,
7074 (_, _) => false,
7075 }
7076 })
7077 // We want to sort by severity, in order to paint the most severe diagnostics last.
7078 .sorted_by_key(|diagnostic| {
7079 std::cmp::Reverse(diagnostic.diagnostic.severity)
7080 });
7081
7082 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
7083 let start_display = diagnostic
7084 .range
7085 .start
7086 .to_display_point(&snapshot.display_snapshot);
7087 let end_display = diagnostic
7088 .range
7089 .end
7090 .to_display_point(&snapshot.display_snapshot);
7091 let color = match diagnostic.diagnostic.severity {
7092 lsp::DiagnosticSeverity::ERROR => theme.status().error,
7093 lsp::DiagnosticSeverity::WARNING => theme.status().warning,
7094 lsp::DiagnosticSeverity::INFORMATION => theme.status().info,
7095 _ => theme.status().hint,
7096 };
7097 ColoredRange {
7098 start: start_display.row(),
7099 end: end_display.row(),
7100 color,
7101 }
7102 });
7103 marker_quads.extend(
7104 scrollbar_layout
7105 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
7106 );
7107 }
7108
7109 Arc::from(marker_quads)
7110 })
7111 .await;
7112
7113 editor.update(cx, |editor, cx| {
7114 editor.scrollbar_marker_state.markers = scrollbar_markers;
7115 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
7116 editor.scrollbar_marker_state.pending_refresh = None;
7117 cx.notify();
7118 })?;
7119
7120 Ok(())
7121 }));
7122 });
7123 }
7124
7125 fn paint_highlighted_range(
7126 &self,
7127 range: Range<DisplayPoint>,
7128 fill: bool,
7129 color: Hsla,
7130 corner_radius: Pixels,
7131 line_end_overshoot: Pixels,
7132 layout: &EditorLayout,
7133 window: &mut Window,
7134 ) {
7135 let start_row = layout.visible_display_row_range.start;
7136 let end_row = layout.visible_display_row_range.end;
7137 if range.start != range.end {
7138 let row_range = if range.end.column() == 0 {
7139 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
7140 } else {
7141 cmp::max(range.start.row(), start_row)
7142 ..cmp::min(range.end.row().next_row(), end_row)
7143 };
7144
7145 let highlighted_range = HighlightedRange {
7146 color,
7147 line_height: layout.position_map.line_height,
7148 corner_radius,
7149 start_y: layout.content_origin.y
7150 + Pixels::from(
7151 (row_range.start.as_f64() - layout.position_map.scroll_position.y)
7152 * ScrollOffset::from(layout.position_map.line_height),
7153 ),
7154 lines: row_range
7155 .iter_rows()
7156 .map(|row| {
7157 let line_layout =
7158 &layout.position_map.line_layouts[row.minus(start_row) as usize];
7159 HighlightedRangeLine {
7160 start_x: if row == range.start.row() {
7161 layout.content_origin.x
7162 + Pixels::from(
7163 ScrollPixelOffset::from(
7164 line_layout.x_for_index(range.start.column() as usize),
7165 ) - layout.position_map.scroll_pixel_position.x,
7166 )
7167 } else {
7168 layout.content_origin.x
7169 - Pixels::from(layout.position_map.scroll_pixel_position.x)
7170 },
7171 end_x: if row == range.end.row() {
7172 layout.content_origin.x
7173 + Pixels::from(
7174 ScrollPixelOffset::from(
7175 line_layout.x_for_index(range.end.column() as usize),
7176 ) - layout.position_map.scroll_pixel_position.x,
7177 )
7178 } else {
7179 Pixels::from(
7180 ScrollPixelOffset::from(
7181 layout.content_origin.x
7182 + line_layout.width
7183 + line_end_overshoot,
7184 ) - layout.position_map.scroll_pixel_position.x,
7185 )
7186 },
7187 }
7188 })
7189 .collect(),
7190 };
7191
7192 highlighted_range.paint(fill, layout.position_map.text_hitbox.bounds, window);
7193 }
7194 }
7195
7196 fn paint_inline_diagnostics(
7197 &mut self,
7198 layout: &mut EditorLayout,
7199 window: &mut Window,
7200 cx: &mut App,
7201 ) {
7202 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
7203 inline_diagnostic.1.paint(window, cx);
7204 }
7205 }
7206
7207 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7208 if let Some(mut blame_layout) = layout.inline_blame_layout.take() {
7209 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7210 blame_layout.element.paint(window, cx);
7211 })
7212 }
7213 }
7214
7215 fn paint_inline_code_actions(
7216 &mut self,
7217 layout: &mut EditorLayout,
7218 window: &mut Window,
7219 cx: &mut App,
7220 ) {
7221 if let Some(mut inline_code_actions) = layout.inline_code_actions.take() {
7222 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
7223 inline_code_actions.paint(window, cx);
7224 })
7225 }
7226 }
7227
7228 fn paint_diff_hunk_controls(
7229 &mut self,
7230 layout: &mut EditorLayout,
7231 window: &mut Window,
7232 cx: &mut App,
7233 ) {
7234 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
7235 diff_hunk_control.paint(window, cx);
7236 }
7237 }
7238
7239 fn paint_minimap(&self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7240 if let Some(mut layout) = layout.minimap.take() {
7241 let minimap_hitbox = layout.thumb_layout.hitbox.clone();
7242 let dragging_minimap = self.editor.read(cx).scroll_manager.is_dragging_minimap();
7243
7244 window.paint_layer(layout.thumb_layout.hitbox.bounds, |window| {
7245 window.with_element_namespace("minimap", |window| {
7246 layout.minimap.paint(window, cx);
7247 if let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds {
7248 let minimap_thumb_color = match layout.thumb_layout.thumb_state {
7249 ScrollbarThumbState::Idle => {
7250 cx.theme().colors().minimap_thumb_background
7251 }
7252 ScrollbarThumbState::Hovered => {
7253 cx.theme().colors().minimap_thumb_hover_background
7254 }
7255 ScrollbarThumbState::Dragging => {
7256 cx.theme().colors().minimap_thumb_active_background
7257 }
7258 };
7259 let minimap_thumb_border = match layout.thumb_border_style {
7260 MinimapThumbBorder::Full => Edges::all(ScrollbarLayout::BORDER_WIDTH),
7261 MinimapThumbBorder::LeftOnly => Edges {
7262 left: ScrollbarLayout::BORDER_WIDTH,
7263 ..Default::default()
7264 },
7265 MinimapThumbBorder::LeftOpen => Edges {
7266 right: ScrollbarLayout::BORDER_WIDTH,
7267 top: ScrollbarLayout::BORDER_WIDTH,
7268 bottom: ScrollbarLayout::BORDER_WIDTH,
7269 ..Default::default()
7270 },
7271 MinimapThumbBorder::RightOpen => Edges {
7272 left: ScrollbarLayout::BORDER_WIDTH,
7273 top: ScrollbarLayout::BORDER_WIDTH,
7274 bottom: ScrollbarLayout::BORDER_WIDTH,
7275 ..Default::default()
7276 },
7277 MinimapThumbBorder::None => Default::default(),
7278 };
7279
7280 window.paint_layer(minimap_hitbox.bounds, |window| {
7281 window.paint_quad(quad(
7282 thumb_bounds,
7283 Corners::default(),
7284 minimap_thumb_color,
7285 minimap_thumb_border,
7286 cx.theme().colors().minimap_thumb_border,
7287 BorderStyle::Solid,
7288 ));
7289 });
7290 }
7291 });
7292 });
7293
7294 if dragging_minimap {
7295 window.set_window_cursor_style(CursorStyle::Arrow);
7296 } else {
7297 window.set_cursor_style(CursorStyle::Arrow, &minimap_hitbox);
7298 }
7299
7300 let minimap_axis = ScrollbarAxis::Vertical;
7301 let pixels_per_line = Pixels::from(
7302 ScrollPixelOffset::from(minimap_hitbox.size.height) / layout.max_scroll_top,
7303 )
7304 .min(layout.minimap_line_height);
7305
7306 let mut mouse_position = window.mouse_position();
7307
7308 window.on_mouse_event({
7309 let editor = self.editor.clone();
7310
7311 let minimap_hitbox = minimap_hitbox.clone();
7312
7313 move |event: &MouseMoveEvent, phase, window, cx| {
7314 if phase == DispatchPhase::Capture {
7315 return;
7316 }
7317
7318 editor.update(cx, |editor, cx| {
7319 if event.pressed_button == Some(MouseButton::Left)
7320 && editor.scroll_manager.is_dragging_minimap()
7321 {
7322 let old_position = mouse_position.along(minimap_axis);
7323 let new_position = event.position.along(minimap_axis);
7324 if (minimap_hitbox.origin.along(minimap_axis)
7325 ..minimap_hitbox.bottom_right().along(minimap_axis))
7326 .contains(&old_position)
7327 {
7328 let position =
7329 editor.scroll_position(cx).apply_along(minimap_axis, |p| {
7330 (p + ScrollPixelOffset::from(
7331 (new_position - old_position) / pixels_per_line,
7332 ))
7333 .max(0.)
7334 });
7335
7336 editor.set_scroll_position(position, window, cx);
7337 }
7338 cx.stop_propagation();
7339 } else if minimap_hitbox.is_hovered(window) {
7340 editor.scroll_manager.set_is_hovering_minimap_thumb(
7341 !event.dragging()
7342 && layout
7343 .thumb_layout
7344 .thumb_bounds
7345 .is_some_and(|bounds| bounds.contains(&event.position)),
7346 cx,
7347 );
7348
7349 // Stop hover events from propagating to the
7350 // underlying editor if the minimap hitbox is hovered
7351 if !event.dragging() {
7352 cx.stop_propagation();
7353 }
7354 } else {
7355 editor.scroll_manager.hide_minimap_thumb(cx);
7356 }
7357 mouse_position = event.position;
7358 });
7359 }
7360 });
7361
7362 if dragging_minimap {
7363 window.on_mouse_event({
7364 let editor = self.editor.clone();
7365 move |event: &MouseUpEvent, phase, window, cx| {
7366 if phase == DispatchPhase::Capture {
7367 return;
7368 }
7369
7370 editor.update(cx, |editor, cx| {
7371 if minimap_hitbox.is_hovered(window) {
7372 editor.scroll_manager.set_is_hovering_minimap_thumb(
7373 layout
7374 .thumb_layout
7375 .thumb_bounds
7376 .is_some_and(|bounds| bounds.contains(&event.position)),
7377 cx,
7378 );
7379 } else {
7380 editor.scroll_manager.hide_minimap_thumb(cx);
7381 }
7382 cx.stop_propagation();
7383 });
7384 }
7385 });
7386 } else {
7387 window.on_mouse_event({
7388 let editor = self.editor.clone();
7389
7390 move |event: &MouseDownEvent, phase, window, cx| {
7391 if phase == DispatchPhase::Capture || !minimap_hitbox.is_hovered(window) {
7392 return;
7393 }
7394
7395 let event_position = event.position;
7396
7397 let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds else {
7398 return;
7399 };
7400
7401 editor.update(cx, |editor, cx| {
7402 if !thumb_bounds.contains(&event_position) {
7403 let click_position =
7404 event_position.relative_to(&minimap_hitbox.origin).y;
7405
7406 let top_position = (click_position
7407 - thumb_bounds.size.along(minimap_axis) / 2.0)
7408 .max(Pixels::ZERO);
7409
7410 let scroll_offset = (layout.minimap_scroll_top
7411 + ScrollPixelOffset::from(
7412 top_position / layout.minimap_line_height,
7413 ))
7414 .min(layout.max_scroll_top);
7415
7416 let scroll_position = editor
7417 .scroll_position(cx)
7418 .apply_along(minimap_axis, |_| scroll_offset);
7419 editor.set_scroll_position(scroll_position, window, cx);
7420 }
7421
7422 editor.scroll_manager.set_is_dragging_minimap(cx);
7423 cx.stop_propagation();
7424 });
7425 }
7426 });
7427 }
7428 }
7429 }
7430
7431 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
7432 for mut block in layout.blocks.drain(..) {
7433 if block.overlaps_gutter {
7434 block.element.paint(window, cx);
7435 } else {
7436 let mut bounds = layout.hitbox.bounds;
7437 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
7438 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7439 block.element.paint(window, cx);
7440 })
7441 }
7442 }
7443 }
7444
7445 fn paint_edit_prediction_popover(
7446 &mut self,
7447 layout: &mut EditorLayout,
7448 window: &mut Window,
7449 cx: &mut App,
7450 ) {
7451 if let Some(edit_prediction_popover) = layout.edit_prediction_popover.as_mut() {
7452 edit_prediction_popover.paint(window, cx);
7453 }
7454 }
7455
7456 fn paint_mouse_context_menu(
7457 &mut self,
7458 layout: &mut EditorLayout,
7459 window: &mut Window,
7460 cx: &mut App,
7461 ) {
7462 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
7463 mouse_context_menu.paint(window, cx);
7464 }
7465 }
7466
7467 fn paint_scroll_wheel_listener(
7468 &mut self,
7469 layout: &EditorLayout,
7470 window: &mut Window,
7471 cx: &mut App,
7472 ) {
7473 window.on_mouse_event({
7474 let position_map = layout.position_map.clone();
7475 let editor = self.editor.clone();
7476 let hitbox = layout.hitbox.clone();
7477 let mut delta = ScrollDelta::default();
7478
7479 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
7480 // accidentally turn off their scrolling.
7481 let base_scroll_sensitivity =
7482 EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
7483
7484 // Use a minimum fast_scroll_sensitivity for same reason above
7485 let fast_scroll_sensitivity = EditorSettings::get_global(cx)
7486 .fast_scroll_sensitivity
7487 .max(0.01);
7488
7489 move |event: &ScrollWheelEvent, phase, window, cx| {
7490 let scroll_sensitivity = {
7491 if event.modifiers.alt {
7492 fast_scroll_sensitivity
7493 } else {
7494 base_scroll_sensitivity
7495 }
7496 };
7497
7498 if phase == DispatchPhase::Bubble && hitbox.should_handle_scroll(window) {
7499 delta = delta.coalesce(event.delta);
7500 editor.update(cx, |editor, cx| {
7501 let position_map: &PositionMap = &position_map;
7502
7503 let line_height = position_map.line_height;
7504 let max_glyph_advance = position_map.em_advance;
7505 let (delta, axis) = match delta {
7506 gpui::ScrollDelta::Pixels(mut pixels) => {
7507 //Trackpad
7508 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
7509 (pixels, axis)
7510 }
7511
7512 gpui::ScrollDelta::Lines(lines) => {
7513 //Not trackpad
7514 let pixels =
7515 point(lines.x * max_glyph_advance, lines.y * line_height);
7516 (pixels, None)
7517 }
7518 };
7519
7520 let current_scroll_position = position_map.snapshot.scroll_position();
7521 let x = (current_scroll_position.x
7522 * ScrollPixelOffset::from(max_glyph_advance)
7523 - ScrollPixelOffset::from(delta.x * scroll_sensitivity))
7524 / ScrollPixelOffset::from(max_glyph_advance);
7525 let y = (current_scroll_position.y * ScrollPixelOffset::from(line_height)
7526 - ScrollPixelOffset::from(delta.y * scroll_sensitivity))
7527 / ScrollPixelOffset::from(line_height);
7528 let mut scroll_position =
7529 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
7530 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
7531 if forbid_vertical_scroll {
7532 scroll_position.y = current_scroll_position.y;
7533 }
7534
7535 if scroll_position != current_scroll_position {
7536 editor.scroll(scroll_position, axis, window, cx);
7537 cx.stop_propagation();
7538 } else if y < 0. {
7539 // Due to clamping, we may fail to detect cases of overscroll to the top;
7540 // We want the scroll manager to get an update in such cases and detect the change of direction
7541 // on the next frame.
7542 cx.notify();
7543 }
7544 });
7545 }
7546 }
7547 });
7548 }
7549
7550 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
7551 if layout.mode.is_minimap() {
7552 return;
7553 }
7554
7555 self.paint_scroll_wheel_listener(layout, window, cx);
7556
7557 window.on_mouse_event({
7558 let position_map = layout.position_map.clone();
7559 let editor = self.editor.clone();
7560 let line_numbers = layout.line_numbers.clone();
7561
7562 move |event: &MouseDownEvent, phase, window, cx| {
7563 if phase == DispatchPhase::Bubble {
7564 match event.button {
7565 MouseButton::Left => editor.update(cx, |editor, cx| {
7566 let pending_mouse_down = editor
7567 .pending_mouse_down
7568 .get_or_insert_with(Default::default)
7569 .clone();
7570
7571 *pending_mouse_down.borrow_mut() = Some(event.clone());
7572
7573 Self::mouse_left_down(
7574 editor,
7575 event,
7576 &position_map,
7577 line_numbers.as_ref(),
7578 window,
7579 cx,
7580 );
7581 }),
7582 MouseButton::Right => editor.update(cx, |editor, cx| {
7583 Self::mouse_right_down(editor, event, &position_map, window, cx);
7584 }),
7585 MouseButton::Middle => editor.update(cx, |editor, cx| {
7586 Self::mouse_middle_down(editor, event, &position_map, window, cx);
7587 }),
7588 _ => {}
7589 };
7590 }
7591 }
7592 });
7593
7594 window.on_mouse_event({
7595 let editor = self.editor.clone();
7596 let position_map = layout.position_map.clone();
7597
7598 move |event: &MouseUpEvent, phase, window, cx| {
7599 if phase == DispatchPhase::Bubble {
7600 editor.update(cx, |editor, cx| {
7601 Self::mouse_up(editor, event, &position_map, window, cx)
7602 });
7603 }
7604 }
7605 });
7606
7607 window.on_mouse_event({
7608 let editor = self.editor.clone();
7609 let position_map = layout.position_map.clone();
7610 let mut captured_mouse_down = None;
7611
7612 move |event: &MouseUpEvent, phase, window, cx| match phase {
7613 // Clear the pending mouse down during the capture phase,
7614 // so that it happens even if another event handler stops
7615 // propagation.
7616 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
7617 let pending_mouse_down = editor
7618 .pending_mouse_down
7619 .get_or_insert_with(Default::default)
7620 .clone();
7621
7622 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
7623 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
7624 captured_mouse_down = pending_mouse_down.take();
7625 window.refresh();
7626 }
7627 }),
7628 // Fire click handlers during the bubble phase.
7629 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
7630 if let Some(mouse_down) = captured_mouse_down.take() {
7631 let event = ClickEvent::Mouse(MouseClickEvent {
7632 down: mouse_down,
7633 up: event.clone(),
7634 });
7635 Self::click(editor, &event, &position_map, window, cx);
7636 }
7637 }),
7638 }
7639 });
7640
7641 window.on_mouse_event({
7642 let position_map = layout.position_map.clone();
7643 let editor = self.editor.clone();
7644
7645 move |event: &MouseMoveEvent, phase, window, cx| {
7646 if phase == DispatchPhase::Bubble {
7647 editor.update(cx, |editor, cx| {
7648 if editor.hover_state.focused(window, cx) {
7649 return;
7650 }
7651 if event.pressed_button == Some(MouseButton::Left)
7652 || event.pressed_button == Some(MouseButton::Middle)
7653 {
7654 Self::mouse_dragged(editor, event, &position_map, window, cx)
7655 }
7656
7657 Self::mouse_moved(editor, event, &position_map, window, cx)
7658 });
7659 }
7660 }
7661 });
7662 }
7663
7664 fn column_pixels(&self, column: usize, window: &Window) -> Pixels {
7665 let style = &self.style;
7666 let font_size = style.text.font_size.to_pixels(window.rem_size());
7667 let layout = window.text_system().shape_line(
7668 SharedString::from(" ".repeat(column)),
7669 font_size,
7670 &[TextRun {
7671 len: column,
7672 font: style.text.font(),
7673 color: Hsla::default(),
7674 ..Default::default()
7675 }],
7676 None,
7677 );
7678
7679 layout.width
7680 }
7681
7682 fn max_line_number_width(&self, snapshot: &EditorSnapshot, window: &mut Window) -> Pixels {
7683 let digit_count = snapshot.widest_line_number().ilog10() + 1;
7684 self.column_pixels(digit_count as usize, window)
7685 }
7686
7687 fn shape_line_number(
7688 &self,
7689 text: SharedString,
7690 color: Hsla,
7691 window: &mut Window,
7692 ) -> ShapedLine {
7693 let run = TextRun {
7694 len: text.len(),
7695 font: self.style.text.font(),
7696 color,
7697 ..Default::default()
7698 };
7699 window.text_system().shape_line(
7700 text,
7701 self.style.text.font_size.to_pixels(window.rem_size()),
7702 &[run],
7703 None,
7704 )
7705 }
7706
7707 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
7708 let unstaged = status.has_secondary_hunk();
7709 let unstaged_hollow = matches!(
7710 ProjectSettings::get_global(cx).git.hunk_style,
7711 GitHunkStyleSetting::UnstagedHollow
7712 );
7713
7714 unstaged == unstaged_hollow
7715 }
7716
7717 #[cfg(debug_assertions)]
7718 fn layout_debug_ranges(
7719 selections: &mut Vec<(PlayerColor, Vec<SelectionLayout>)>,
7720 anchor_range: Range<Anchor>,
7721 display_snapshot: &DisplaySnapshot,
7722 cx: &App,
7723 ) {
7724 let theme = cx.theme();
7725 text::debug::GlobalDebugRanges::with_locked(|debug_ranges| {
7726 if debug_ranges.ranges.is_empty() {
7727 return;
7728 }
7729 let buffer_snapshot = &display_snapshot.buffer_snapshot();
7730 for (buffer, buffer_range, excerpt_id) in
7731 buffer_snapshot.range_to_buffer_ranges(anchor_range)
7732 {
7733 let buffer_range =
7734 buffer.anchor_after(buffer_range.start)..buffer.anchor_before(buffer_range.end);
7735 selections.extend(debug_ranges.ranges.iter().flat_map(|debug_range| {
7736 let player_color = theme
7737 .players()
7738 .color_for_participant(debug_range.occurrence_index as u32 + 1);
7739 debug_range.ranges.iter().filter_map(move |range| {
7740 if range.start.buffer_id != Some(buffer.remote_id()) {
7741 return None;
7742 }
7743 let clipped_start = range.start.max(&buffer_range.start, buffer);
7744 let clipped_end = range.end.min(&buffer_range.end, buffer);
7745 let range = buffer_snapshot
7746 .anchor_range_in_excerpt(excerpt_id, *clipped_start..*clipped_end)?;
7747 let start = range.start.to_display_point(display_snapshot);
7748 let end = range.end.to_display_point(display_snapshot);
7749 let selection_layout = SelectionLayout {
7750 head: start,
7751 range: start..end,
7752 cursor_shape: CursorShape::Bar,
7753 is_newest: false,
7754 is_local: false,
7755 active_rows: start.row()..end.row(),
7756 user_name: Some(SharedString::new(debug_range.value.clone())),
7757 };
7758 Some((player_color, vec![selection_layout]))
7759 })
7760 }));
7761 }
7762 });
7763 }
7764}
7765
7766fn file_status_label_color(file_status: Option<FileStatus>) -> Color {
7767 file_status.map_or(Color::Default, |status| {
7768 if status.is_conflicted() {
7769 Color::Conflict
7770 } else if status.is_modified() {
7771 Color::Modified
7772 } else if status.is_deleted() {
7773 Color::Disabled
7774 } else if status.is_created() {
7775 Color::Created
7776 } else {
7777 Color::Default
7778 }
7779 })
7780}
7781
7782fn header_jump_data(
7783 snapshot: &EditorSnapshot,
7784 block_row_start: DisplayRow,
7785 height: u32,
7786 for_excerpt: &ExcerptInfo,
7787) -> JumpData {
7788 let range = &for_excerpt.range;
7789 let buffer = &for_excerpt.buffer;
7790 let jump_anchor = range.primary.start;
7791
7792 let excerpt_start = range.context.start;
7793 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
7794 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
7795 0
7796 } else {
7797 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
7798 jump_position.row.saturating_sub(excerpt_start_point.row)
7799 };
7800
7801 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
7802 .saturating_sub(
7803 snapshot
7804 .scroll_anchor
7805 .scroll_position(&snapshot.display_snapshot)
7806 .y as u32,
7807 );
7808
7809 JumpData::MultiBufferPoint {
7810 excerpt_id: for_excerpt.id,
7811 anchor: jump_anchor,
7812 position: jump_position,
7813 line_offset_from_top,
7814 }
7815}
7816
7817pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
7818
7819impl AcceptEditPredictionBinding {
7820 pub fn keystroke(&self) -> Option<&KeybindingKeystroke> {
7821 if let Some(binding) = self.0.as_ref() {
7822 match &binding.keystrokes() {
7823 [keystroke, ..] => Some(keystroke),
7824 _ => None,
7825 }
7826 } else {
7827 None
7828 }
7829 }
7830}
7831
7832fn prepaint_gutter_button(
7833 button: IconButton,
7834 row: DisplayRow,
7835 line_height: Pixels,
7836 gutter_dimensions: &GutterDimensions,
7837 scroll_position: gpui::Point<ScrollOffset>,
7838 gutter_hitbox: &Hitbox,
7839 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
7840 window: &mut Window,
7841 cx: &mut App,
7842) -> AnyElement {
7843 let mut button = button.into_any_element();
7844
7845 let available_space = size(
7846 AvailableSpace::MinContent,
7847 AvailableSpace::Definite(line_height),
7848 );
7849 let indicator_size = button.layout_as_root(available_space, window, cx);
7850
7851 let blame_width = gutter_dimensions.git_blame_entries_width;
7852 let gutter_width = display_hunks
7853 .binary_search_by(|(hunk, _)| match hunk {
7854 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
7855 DisplayDiffHunk::Unfolded {
7856 display_row_range, ..
7857 } => {
7858 if display_row_range.end <= row {
7859 Ordering::Less
7860 } else if display_row_range.start > row {
7861 Ordering::Greater
7862 } else {
7863 Ordering::Equal
7864 }
7865 }
7866 })
7867 .ok()
7868 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
7869 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
7870
7871 let mut x = left_offset;
7872 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
7873 - indicator_size.width
7874 - left_offset;
7875 x += available_width / 2.;
7876
7877 let mut y =
7878 Pixels::from((row.as_f64() - scroll_position.y) * ScrollPixelOffset::from(line_height));
7879 y += (line_height - indicator_size.height) / 2.;
7880
7881 button.prepaint_as_root(
7882 gutter_hitbox.origin + point(x, y),
7883 available_space,
7884 window,
7885 cx,
7886 );
7887 button
7888}
7889
7890fn render_inline_blame_entry(
7891 blame_entry: BlameEntry,
7892 style: &EditorStyle,
7893 cx: &mut App,
7894) -> Option<AnyElement> {
7895 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
7896 renderer.render_inline_blame_entry(&style.text, blame_entry, cx)
7897}
7898
7899fn render_blame_entry_popover(
7900 blame_entry: BlameEntry,
7901 scroll_handle: ScrollHandle,
7902 commit_message: Option<ParsedCommitMessage>,
7903 markdown: Entity<Markdown>,
7904 workspace: WeakEntity<Workspace>,
7905 blame: &Entity<GitBlame>,
7906 buffer: BufferId,
7907 window: &mut Window,
7908 cx: &mut App,
7909) -> Option<AnyElement> {
7910 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
7911 let blame = blame.read(cx);
7912 let repository = blame.repository(cx, buffer)?;
7913 renderer.render_blame_entry_popover(
7914 blame_entry,
7915 scroll_handle,
7916 commit_message,
7917 markdown,
7918 repository,
7919 workspace,
7920 window,
7921 cx,
7922 )
7923}
7924
7925fn render_blame_entry(
7926 ix: usize,
7927 blame: &Entity<GitBlame>,
7928 blame_entry: BlameEntry,
7929 style: &EditorStyle,
7930 last_used_color: &mut Option<(Hsla, Oid)>,
7931 editor: Entity<Editor>,
7932 workspace: Entity<Workspace>,
7933 buffer: BufferId,
7934 renderer: &dyn BlameRenderer,
7935 window: &mut Window,
7936 cx: &mut App,
7937) -> Option<AnyElement> {
7938 let index: u32 = blame_entry.sha.into();
7939 let mut sha_color = cx.theme().players().color_for_participant(index).cursor;
7940
7941 // If the last color we used is the same as the one we get for this line, but
7942 // the commit SHAs are different, then we try again to get a different color.
7943 if let Some((color, sha)) = *last_used_color
7944 && sha != blame_entry.sha
7945 && color == sha_color
7946 {
7947 sha_color = cx.theme().players().color_for_participant(index + 1).cursor;
7948 }
7949 last_used_color.replace((sha_color, blame_entry.sha));
7950
7951 let blame = blame.read(cx);
7952 let details = blame.details_for_entry(buffer, &blame_entry);
7953 let repository = blame.repository(cx, buffer)?;
7954 renderer.render_blame_entry(
7955 &style.text,
7956 blame_entry,
7957 details,
7958 repository,
7959 workspace.downgrade(),
7960 editor,
7961 ix,
7962 sha_color,
7963 window,
7964 cx,
7965 )
7966}
7967
7968#[derive(Debug)]
7969pub(crate) struct LineWithInvisibles {
7970 fragments: SmallVec<[LineFragment; 1]>,
7971 invisibles: Vec<Invisible>,
7972 len: usize,
7973 pub(crate) width: Pixels,
7974 font_size: Pixels,
7975}
7976
7977enum LineFragment {
7978 Text(ShapedLine),
7979 Element {
7980 id: ChunkRendererId,
7981 element: Option<AnyElement>,
7982 size: Size<Pixels>,
7983 len: usize,
7984 },
7985}
7986
7987impl fmt::Debug for LineFragment {
7988 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
7989 match self {
7990 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
7991 LineFragment::Element { size, len, .. } => f
7992 .debug_struct("Element")
7993 .field("size", size)
7994 .field("len", len)
7995 .finish(),
7996 }
7997 }
7998}
7999
8000impl LineWithInvisibles {
8001 fn from_chunks<'a>(
8002 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
8003 editor_style: &EditorStyle,
8004 max_line_len: usize,
8005 max_line_count: usize,
8006 editor_mode: &EditorMode,
8007 text_width: Pixels,
8008 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8009 bg_segments_per_row: &[Vec<(Range<DisplayPoint>, Hsla)>],
8010 window: &mut Window,
8011 cx: &mut App,
8012 ) -> Vec<Self> {
8013 let text_style = &editor_style.text;
8014 let mut layouts = Vec::with_capacity(max_line_count);
8015 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
8016 let mut line = String::new();
8017 let mut invisibles = Vec::new();
8018 let mut width = Pixels::ZERO;
8019 let mut len = 0;
8020 let mut styles = Vec::new();
8021 let mut non_whitespace_added = false;
8022 let mut row = 0;
8023 let mut line_exceeded_max_len = false;
8024 let font_size = text_style.font_size.to_pixels(window.rem_size());
8025 let min_contrast = EditorSettings::get_global(cx).minimum_contrast_for_highlights;
8026
8027 let ellipsis = SharedString::from("β―");
8028
8029 for highlighted_chunk in chunks.chain([HighlightedChunk {
8030 text: "\n",
8031 style: None,
8032 is_tab: false,
8033 is_inlay: false,
8034 replacement: None,
8035 }]) {
8036 if let Some(replacement) = highlighted_chunk.replacement {
8037 if !line.is_empty() {
8038 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8039 let text_runs: &[TextRun] = if segments.is_empty() {
8040 &styles
8041 } else {
8042 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8043 };
8044 let shaped_line = window.text_system().shape_line(
8045 line.clone().into(),
8046 font_size,
8047 text_runs,
8048 None,
8049 );
8050 width += shaped_line.width;
8051 len += shaped_line.len;
8052 fragments.push(LineFragment::Text(shaped_line));
8053 line.clear();
8054 styles.clear();
8055 }
8056
8057 match replacement {
8058 ChunkReplacement::Renderer(renderer) => {
8059 let available_width = if renderer.constrain_width {
8060 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
8061 ellipsis.clone()
8062 } else {
8063 SharedString::from(Arc::from(highlighted_chunk.text))
8064 };
8065 let shaped_line = window.text_system().shape_line(
8066 chunk,
8067 font_size,
8068 &[text_style.to_run(highlighted_chunk.text.len())],
8069 None,
8070 );
8071 AvailableSpace::Definite(shaped_line.width)
8072 } else {
8073 AvailableSpace::MinContent
8074 };
8075
8076 let mut element = (renderer.render)(&mut ChunkRendererContext {
8077 context: cx,
8078 window,
8079 max_width: text_width,
8080 });
8081 let line_height = text_style.line_height_in_pixels(window.rem_size());
8082 let size = element.layout_as_root(
8083 size(available_width, AvailableSpace::Definite(line_height)),
8084 window,
8085 cx,
8086 );
8087
8088 width += size.width;
8089 len += highlighted_chunk.text.len();
8090 fragments.push(LineFragment::Element {
8091 id: renderer.id,
8092 element: Some(element),
8093 size,
8094 len: highlighted_chunk.text.len(),
8095 });
8096 }
8097 ChunkReplacement::Str(x) => {
8098 let text_style = if let Some(style) = highlighted_chunk.style {
8099 Cow::Owned(text_style.clone().highlight(style))
8100 } else {
8101 Cow::Borrowed(text_style)
8102 };
8103
8104 let run = TextRun {
8105 len: x.len(),
8106 font: text_style.font(),
8107 color: text_style.color,
8108 background_color: text_style.background_color,
8109 underline: text_style.underline,
8110 strikethrough: text_style.strikethrough,
8111 };
8112 let line_layout = window
8113 .text_system()
8114 .shape_line(x, font_size, &[run], None)
8115 .with_len(highlighted_chunk.text.len());
8116
8117 width += line_layout.width;
8118 len += highlighted_chunk.text.len();
8119 fragments.push(LineFragment::Text(line_layout))
8120 }
8121 }
8122 } else {
8123 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
8124 if ix > 0 {
8125 let segments = bg_segments_per_row.get(row).map(|v| &v[..]).unwrap_or(&[]);
8126 let text_runs = if segments.is_empty() {
8127 &styles
8128 } else {
8129 &Self::split_runs_by_bg_segments(&styles, segments, min_contrast, len)
8130 };
8131 let shaped_line = window.text_system().shape_line(
8132 line.clone().into(),
8133 font_size,
8134 text_runs,
8135 None,
8136 );
8137 width += shaped_line.width;
8138 len += shaped_line.len;
8139 fragments.push(LineFragment::Text(shaped_line));
8140 layouts.push(Self {
8141 width: mem::take(&mut width),
8142 len: mem::take(&mut len),
8143 fragments: mem::take(&mut fragments),
8144 invisibles: std::mem::take(&mut invisibles),
8145 font_size,
8146 });
8147
8148 line.clear();
8149 styles.clear();
8150 row += 1;
8151 line_exceeded_max_len = false;
8152 non_whitespace_added = false;
8153 if row == max_line_count {
8154 return layouts;
8155 }
8156 }
8157
8158 if !line_chunk.is_empty() && !line_exceeded_max_len {
8159 let text_style = if let Some(style) = highlighted_chunk.style {
8160 Cow::Owned(text_style.clone().highlight(style))
8161 } else {
8162 Cow::Borrowed(text_style)
8163 };
8164
8165 if line.len() + line_chunk.len() > max_line_len {
8166 let mut chunk_len = max_line_len - line.len();
8167 while !line_chunk.is_char_boundary(chunk_len) {
8168 chunk_len -= 1;
8169 }
8170 line_chunk = &line_chunk[..chunk_len];
8171 line_exceeded_max_len = true;
8172 }
8173
8174 styles.push(TextRun {
8175 len: line_chunk.len(),
8176 font: text_style.font(),
8177 color: text_style.color,
8178 background_color: text_style.background_color,
8179 underline: text_style.underline,
8180 strikethrough: text_style.strikethrough,
8181 });
8182
8183 if editor_mode.is_full() && !highlighted_chunk.is_inlay {
8184 // Line wrap pads its contents with fake whitespaces,
8185 // avoid printing them
8186 let is_soft_wrapped = is_row_soft_wrapped(row);
8187 if highlighted_chunk.is_tab {
8188 if non_whitespace_added || !is_soft_wrapped {
8189 invisibles.push(Invisible::Tab {
8190 line_start_offset: line.len(),
8191 line_end_offset: line.len() + line_chunk.len(),
8192 });
8193 }
8194 } else {
8195 invisibles.extend(line_chunk.char_indices().filter_map(
8196 |(index, c)| {
8197 let is_whitespace = c.is_whitespace();
8198 non_whitespace_added |= !is_whitespace;
8199 if is_whitespace
8200 && (non_whitespace_added || !is_soft_wrapped)
8201 {
8202 Some(Invisible::Whitespace {
8203 line_offset: line.len() + index,
8204 })
8205 } else {
8206 None
8207 }
8208 },
8209 ))
8210 }
8211 }
8212
8213 line.push_str(line_chunk);
8214 }
8215 }
8216 }
8217 }
8218
8219 layouts
8220 }
8221
8222 /// Takes text runs and non-overlapping left-to-right background ranges with color.
8223 /// Returns new text runs with adjusted contrast as per background ranges.
8224 fn split_runs_by_bg_segments(
8225 text_runs: &[TextRun],
8226 bg_segments: &[(Range<DisplayPoint>, Hsla)],
8227 min_contrast: f32,
8228 start_col_offset: usize,
8229 ) -> Vec<TextRun> {
8230 let mut output_runs: Vec<TextRun> = Vec::with_capacity(text_runs.len());
8231 let mut line_col = start_col_offset;
8232 let mut segment_ix = 0usize;
8233
8234 for text_run in text_runs.iter() {
8235 let run_start_col = line_col;
8236 let run_end_col = run_start_col + text_run.len;
8237 while segment_ix < bg_segments.len()
8238 && (bg_segments[segment_ix].0.end.column() as usize) <= run_start_col
8239 {
8240 segment_ix += 1;
8241 }
8242 let mut cursor_col = run_start_col;
8243 let mut local_segment_ix = segment_ix;
8244 while local_segment_ix < bg_segments.len() {
8245 let (range, segment_color) = &bg_segments[local_segment_ix];
8246 let segment_start_col = range.start.column() as usize;
8247 let segment_end_col = range.end.column() as usize;
8248 if segment_start_col >= run_end_col {
8249 break;
8250 }
8251 if segment_start_col > cursor_col {
8252 let span_len = segment_start_col - cursor_col;
8253 output_runs.push(TextRun {
8254 len: span_len,
8255 font: text_run.font.clone(),
8256 color: text_run.color,
8257 background_color: text_run.background_color,
8258 underline: text_run.underline,
8259 strikethrough: text_run.strikethrough,
8260 });
8261 cursor_col = segment_start_col;
8262 }
8263 let segment_slice_end_col = segment_end_col.min(run_end_col);
8264 if segment_slice_end_col > cursor_col {
8265 let new_text_color =
8266 ensure_minimum_contrast(text_run.color, *segment_color, min_contrast);
8267 output_runs.push(TextRun {
8268 len: segment_slice_end_col - cursor_col,
8269 font: text_run.font.clone(),
8270 color: new_text_color,
8271 background_color: text_run.background_color,
8272 underline: text_run.underline,
8273 strikethrough: text_run.strikethrough,
8274 });
8275 cursor_col = segment_slice_end_col;
8276 }
8277 if segment_end_col >= run_end_col {
8278 break;
8279 }
8280 local_segment_ix += 1;
8281 }
8282 if cursor_col < run_end_col {
8283 output_runs.push(TextRun {
8284 len: run_end_col - cursor_col,
8285 font: text_run.font.clone(),
8286 color: text_run.color,
8287 background_color: text_run.background_color,
8288 underline: text_run.underline,
8289 strikethrough: text_run.strikethrough,
8290 });
8291 }
8292 line_col = run_end_col;
8293 segment_ix = local_segment_ix;
8294 }
8295 output_runs
8296 }
8297
8298 fn prepaint(
8299 &mut self,
8300 line_height: Pixels,
8301 scroll_position: gpui::Point<ScrollOffset>,
8302 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
8303 row: DisplayRow,
8304 content_origin: gpui::Point<Pixels>,
8305 line_elements: &mut SmallVec<[AnyElement; 1]>,
8306 window: &mut Window,
8307 cx: &mut App,
8308 ) {
8309 let line_y = f32::from(line_height) * Pixels::from(row.as_f64() - scroll_position.y);
8310 self.prepaint_with_custom_offset(
8311 line_height,
8312 scroll_pixel_position,
8313 content_origin,
8314 line_y,
8315 line_elements,
8316 window,
8317 cx,
8318 );
8319 }
8320
8321 fn prepaint_with_custom_offset(
8322 &mut self,
8323 line_height: Pixels,
8324 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
8325 content_origin: gpui::Point<Pixels>,
8326 line_y: Pixels,
8327 line_elements: &mut SmallVec<[AnyElement; 1]>,
8328 window: &mut Window,
8329 cx: &mut App,
8330 ) {
8331 let mut fragment_origin =
8332 content_origin + gpui::point(Pixels::from(-scroll_pixel_position.x), line_y);
8333 for fragment in &mut self.fragments {
8334 match fragment {
8335 LineFragment::Text(line) => {
8336 fragment_origin.x += line.width;
8337 }
8338 LineFragment::Element { element, size, .. } => {
8339 let mut element = element
8340 .take()
8341 .expect("you can't prepaint LineWithInvisibles twice");
8342
8343 // Center the element vertically within the line.
8344 let mut element_origin = fragment_origin;
8345 element_origin.y += (line_height - size.height) / 2.;
8346 element.prepaint_at(element_origin, window, cx);
8347 line_elements.push(element);
8348
8349 fragment_origin.x += size.width;
8350 }
8351 }
8352 }
8353 }
8354
8355 fn draw(
8356 &self,
8357 layout: &EditorLayout,
8358 row: DisplayRow,
8359 content_origin: gpui::Point<Pixels>,
8360 whitespace_setting: ShowWhitespaceSetting,
8361 selection_ranges: &[Range<DisplayPoint>],
8362 window: &mut Window,
8363 cx: &mut App,
8364 ) {
8365 self.draw_with_custom_offset(
8366 layout,
8367 row,
8368 content_origin,
8369 layout.position_map.line_height
8370 * (row.as_f64() - layout.position_map.scroll_position.y) as f32,
8371 whitespace_setting,
8372 selection_ranges,
8373 window,
8374 cx,
8375 );
8376 }
8377
8378 fn draw_with_custom_offset(
8379 &self,
8380 layout: &EditorLayout,
8381 row: DisplayRow,
8382 content_origin: gpui::Point<Pixels>,
8383 line_y: Pixels,
8384 whitespace_setting: ShowWhitespaceSetting,
8385 selection_ranges: &[Range<DisplayPoint>],
8386 window: &mut Window,
8387 cx: &mut App,
8388 ) {
8389 let line_height = layout.position_map.line_height;
8390 let mut fragment_origin = content_origin
8391 + gpui::point(
8392 Pixels::from(-layout.position_map.scroll_pixel_position.x),
8393 line_y,
8394 );
8395
8396 for fragment in &self.fragments {
8397 match fragment {
8398 LineFragment::Text(line) => {
8399 line.paint(fragment_origin, line_height, window, cx)
8400 .log_err();
8401 fragment_origin.x += line.width;
8402 }
8403 LineFragment::Element { size, .. } => {
8404 fragment_origin.x += size.width;
8405 }
8406 }
8407 }
8408
8409 self.draw_invisibles(
8410 selection_ranges,
8411 layout,
8412 content_origin,
8413 line_y,
8414 row,
8415 line_height,
8416 whitespace_setting,
8417 window,
8418 cx,
8419 );
8420 }
8421
8422 fn draw_background(
8423 &self,
8424 layout: &EditorLayout,
8425 row: DisplayRow,
8426 content_origin: gpui::Point<Pixels>,
8427 window: &mut Window,
8428 cx: &mut App,
8429 ) {
8430 let line_height = layout.position_map.line_height;
8431 let line_y = line_height * (row.as_f64() - layout.position_map.scroll_position.y) as f32;
8432
8433 let mut fragment_origin = content_origin
8434 + gpui::point(
8435 Pixels::from(-layout.position_map.scroll_pixel_position.x),
8436 line_y,
8437 );
8438
8439 for fragment in &self.fragments {
8440 match fragment {
8441 LineFragment::Text(line) => {
8442 line.paint_background(fragment_origin, line_height, window, cx)
8443 .log_err();
8444 fragment_origin.x += line.width;
8445 }
8446 LineFragment::Element { size, .. } => {
8447 fragment_origin.x += size.width;
8448 }
8449 }
8450 }
8451 }
8452
8453 fn draw_invisibles(
8454 &self,
8455 selection_ranges: &[Range<DisplayPoint>],
8456 layout: &EditorLayout,
8457 content_origin: gpui::Point<Pixels>,
8458 line_y: Pixels,
8459 row: DisplayRow,
8460 line_height: Pixels,
8461 whitespace_setting: ShowWhitespaceSetting,
8462 window: &mut Window,
8463 cx: &mut App,
8464 ) {
8465 let extract_whitespace_info = |invisible: &Invisible| {
8466 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
8467 Invisible::Tab {
8468 line_start_offset,
8469 line_end_offset,
8470 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
8471 Invisible::Whitespace { line_offset } => {
8472 (*line_offset, line_offset + 1, &layout.space_invisible)
8473 }
8474 };
8475
8476 let x_offset: ScrollPixelOffset = self.x_for_index(token_offset).into();
8477 let invisible_offset: ScrollPixelOffset =
8478 ((layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0)
8479 .into();
8480 let origin = content_origin
8481 + gpui::point(
8482 Pixels::from(
8483 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
8484 ),
8485 line_y,
8486 );
8487
8488 (
8489 [token_offset, token_end_offset],
8490 Box::new(move |window: &mut Window, cx: &mut App| {
8491 invisible_symbol
8492 .paint(origin, line_height, window, cx)
8493 .log_err();
8494 }),
8495 )
8496 };
8497
8498 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
8499 match whitespace_setting {
8500 ShowWhitespaceSetting::None => (),
8501 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
8502 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
8503 let invisible_point = DisplayPoint::new(row, start as u32);
8504 if !selection_ranges
8505 .iter()
8506 .any(|region| region.start <= invisible_point && invisible_point < region.end)
8507 {
8508 return;
8509 }
8510
8511 paint(window, cx);
8512 }),
8513
8514 ShowWhitespaceSetting::Trailing => {
8515 let mut previous_start = self.len;
8516 for ([start, end], paint) in invisible_iter.rev() {
8517 if previous_start != end {
8518 break;
8519 }
8520 previous_start = start;
8521 paint(window, cx);
8522 }
8523 }
8524
8525 // For a whitespace to be on a boundary, any of the following conditions need to be met:
8526 // - It is a tab
8527 // - It is adjacent to an edge (start or end)
8528 // - It is adjacent to a whitespace (left or right)
8529 ShowWhitespaceSetting::Boundary => {
8530 // 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
8531 // the above cases.
8532 // Note: We zip in the original `invisibles` to check for tab equality
8533 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
8534 for (([start, end], paint), invisible) in
8535 invisible_iter.zip_eq(self.invisibles.iter())
8536 {
8537 let should_render = match (&last_seen, invisible) {
8538 (_, Invisible::Tab { .. }) => true,
8539 (Some((_, last_end, _)), _) => *last_end == start,
8540 _ => false,
8541 };
8542
8543 if should_render || start == 0 || end == self.len {
8544 paint(window, cx);
8545
8546 // Since we are scanning from the left, we will skip over the first available whitespace that is part
8547 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
8548 if let Some((should_render_last, last_end, paint_last)) = last_seen {
8549 // Note that we need to make sure that the last one is actually adjacent
8550 if !should_render_last && last_end == start {
8551 paint_last(window, cx);
8552 }
8553 }
8554 }
8555
8556 // Manually render anything within a selection
8557 let invisible_point = DisplayPoint::new(row, start as u32);
8558 if selection_ranges.iter().any(|region| {
8559 region.start <= invisible_point && invisible_point < region.end
8560 }) {
8561 paint(window, cx);
8562 }
8563
8564 last_seen = Some((should_render, end, paint));
8565 }
8566 }
8567 }
8568 }
8569
8570 pub fn x_for_index(&self, index: usize) -> Pixels {
8571 let mut fragment_start_x = Pixels::ZERO;
8572 let mut fragment_start_index = 0;
8573
8574 for fragment in &self.fragments {
8575 match fragment {
8576 LineFragment::Text(shaped_line) => {
8577 let fragment_end_index = fragment_start_index + shaped_line.len;
8578 if index < fragment_end_index {
8579 return fragment_start_x
8580 + shaped_line.x_for_index(index - fragment_start_index);
8581 }
8582 fragment_start_x += shaped_line.width;
8583 fragment_start_index = fragment_end_index;
8584 }
8585 LineFragment::Element { len, size, .. } => {
8586 let fragment_end_index = fragment_start_index + len;
8587 if index < fragment_end_index {
8588 return fragment_start_x;
8589 }
8590 fragment_start_x += size.width;
8591 fragment_start_index = fragment_end_index;
8592 }
8593 }
8594 }
8595
8596 fragment_start_x
8597 }
8598
8599 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
8600 let mut fragment_start_x = Pixels::ZERO;
8601 let mut fragment_start_index = 0;
8602
8603 for fragment in &self.fragments {
8604 match fragment {
8605 LineFragment::Text(shaped_line) => {
8606 let fragment_end_x = fragment_start_x + shaped_line.width;
8607 if x < fragment_end_x {
8608 return Some(
8609 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
8610 );
8611 }
8612 fragment_start_x = fragment_end_x;
8613 fragment_start_index += shaped_line.len;
8614 }
8615 LineFragment::Element { len, size, .. } => {
8616 let fragment_end_x = fragment_start_x + size.width;
8617 if x < fragment_end_x {
8618 return Some(fragment_start_index);
8619 }
8620 fragment_start_index += len;
8621 fragment_start_x = fragment_end_x;
8622 }
8623 }
8624 }
8625
8626 None
8627 }
8628
8629 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
8630 let mut fragment_start_index = 0;
8631
8632 for fragment in &self.fragments {
8633 match fragment {
8634 LineFragment::Text(shaped_line) => {
8635 let fragment_end_index = fragment_start_index + shaped_line.len;
8636 if index < fragment_end_index {
8637 return shaped_line.font_id_for_index(index - fragment_start_index);
8638 }
8639 fragment_start_index = fragment_end_index;
8640 }
8641 LineFragment::Element { len, .. } => {
8642 let fragment_end_index = fragment_start_index + len;
8643 if index < fragment_end_index {
8644 return None;
8645 }
8646 fragment_start_index = fragment_end_index;
8647 }
8648 }
8649 }
8650
8651 None
8652 }
8653}
8654
8655#[derive(Debug, Clone, Copy, PartialEq, Eq)]
8656enum Invisible {
8657 /// A tab character
8658 ///
8659 /// A tab character is internally represented by spaces (configured by the user's tab width)
8660 /// aligned to the nearest column, so it's necessary to store the start and end offset for
8661 /// adjacency checks.
8662 Tab {
8663 line_start_offset: usize,
8664 line_end_offset: usize,
8665 },
8666 Whitespace {
8667 line_offset: usize,
8668 },
8669}
8670
8671impl EditorElement {
8672 /// Returns the rem size to use when rendering the [`EditorElement`].
8673 ///
8674 /// This allows UI elements to scale based on the `buffer_font_size`.
8675 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
8676 match self.editor.read(cx).mode {
8677 EditorMode::Full {
8678 scale_ui_elements_with_buffer_font_size: true,
8679 ..
8680 }
8681 | EditorMode::Minimap { .. } => {
8682 let buffer_font_size = self.style.text.font_size;
8683 match buffer_font_size {
8684 AbsoluteLength::Pixels(pixels) => {
8685 let rem_size_scale = {
8686 // Our default UI font size is 14px on a 16px base scale.
8687 // This means the default UI font size is 0.875rems.
8688 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
8689
8690 // We then determine the delta between a single rem and the default font
8691 // size scale.
8692 let default_font_size_delta = 1. - default_font_size_scale;
8693
8694 // Finally, we add this delta to 1rem to get the scale factor that
8695 // should be used to scale up the UI.
8696 1. + default_font_size_delta
8697 };
8698
8699 Some(pixels * rem_size_scale)
8700 }
8701 AbsoluteLength::Rems(rems) => {
8702 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
8703 }
8704 }
8705 }
8706 // We currently use single-line and auto-height editors in UI contexts,
8707 // so we don't want to scale everything with the buffer font size, as it
8708 // ends up looking off.
8709 _ => None,
8710 }
8711 }
8712
8713 fn editor_with_selections(&self, cx: &App) -> Option<Entity<Editor>> {
8714 if let EditorMode::Minimap { parent } = self.editor.read(cx).mode() {
8715 parent.upgrade()
8716 } else {
8717 Some(self.editor.clone())
8718 }
8719 }
8720}
8721
8722impl Element for EditorElement {
8723 type RequestLayoutState = ();
8724 type PrepaintState = EditorLayout;
8725
8726 fn id(&self) -> Option<ElementId> {
8727 None
8728 }
8729
8730 fn source_location(&self) -> Option<&'static core::panic::Location<'static>> {
8731 None
8732 }
8733
8734 fn request_layout(
8735 &mut self,
8736 _: Option<&GlobalElementId>,
8737 _inspector_id: Option<&gpui::InspectorElementId>,
8738 window: &mut Window,
8739 cx: &mut App,
8740 ) -> (gpui::LayoutId, ()) {
8741 let rem_size = self.rem_size(cx);
8742 window.with_rem_size(rem_size, |window| {
8743 self.editor.update(cx, |editor, cx| {
8744 editor.set_style(self.style.clone(), window, cx);
8745
8746 let layout_id = match editor.mode {
8747 EditorMode::SingleLine => {
8748 let rem_size = window.rem_size();
8749 let height = self.style.text.line_height_in_pixels(rem_size);
8750 let mut style = Style::default();
8751 style.size.height = height.into();
8752 style.size.width = relative(1.).into();
8753 window.request_layout(style, None, cx)
8754 }
8755 EditorMode::AutoHeight {
8756 min_lines,
8757 max_lines,
8758 } => {
8759 let editor_handle = cx.entity();
8760 let max_line_number_width =
8761 self.max_line_number_width(&editor.snapshot(window, cx), window);
8762 window.request_measured_layout(
8763 Style::default(),
8764 move |known_dimensions, available_space, window, cx| {
8765 editor_handle
8766 .update(cx, |editor, cx| {
8767 compute_auto_height_layout(
8768 editor,
8769 min_lines,
8770 max_lines,
8771 max_line_number_width,
8772 known_dimensions,
8773 available_space.width,
8774 window,
8775 cx,
8776 )
8777 })
8778 .unwrap_or_default()
8779 },
8780 )
8781 }
8782 EditorMode::Minimap { .. } => {
8783 let mut style = Style::default();
8784 style.size.width = relative(1.).into();
8785 style.size.height = relative(1.).into();
8786 window.request_layout(style, None, cx)
8787 }
8788 EditorMode::Full {
8789 sizing_behavior, ..
8790 } => {
8791 let mut style = Style::default();
8792 style.size.width = relative(1.).into();
8793 if sizing_behavior == SizingBehavior::SizeByContent {
8794 let snapshot = editor.snapshot(window, cx);
8795 let line_height =
8796 self.style.text.line_height_in_pixels(window.rem_size());
8797 let scroll_height =
8798 (snapshot.max_point().row().next_row().0 as f32) * line_height;
8799 style.size.height = scroll_height.into();
8800 } else {
8801 style.size.height = relative(1.).into();
8802 }
8803 window.request_layout(style, None, cx)
8804 }
8805 };
8806
8807 (layout_id, ())
8808 })
8809 })
8810 }
8811
8812 fn prepaint(
8813 &mut self,
8814 _: Option<&GlobalElementId>,
8815 _inspector_id: Option<&gpui::InspectorElementId>,
8816 bounds: Bounds<Pixels>,
8817 _: &mut Self::RequestLayoutState,
8818 window: &mut Window,
8819 cx: &mut App,
8820 ) -> Self::PrepaintState {
8821 let text_style = TextStyleRefinement {
8822 font_size: Some(self.style.text.font_size),
8823 line_height: Some(self.style.text.line_height),
8824 ..Default::default()
8825 };
8826
8827 let is_minimap = self.editor.read(cx).mode.is_minimap();
8828 let is_singleton = self.editor.read(cx).buffer_kind(cx) == ItemBufferKind::Singleton;
8829
8830 if !is_minimap {
8831 let focus_handle = self.editor.focus_handle(cx);
8832 window.set_view_id(self.editor.entity_id());
8833 window.set_focus_handle(&focus_handle, cx);
8834 }
8835
8836 let rem_size = self.rem_size(cx);
8837 window.with_rem_size(rem_size, |window| {
8838 window.with_text_style(Some(text_style), |window| {
8839 window.with_content_mask(Some(ContentMask { bounds }), |window| {
8840 let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| {
8841 (editor.snapshot(window, cx), editor.read_only(cx))
8842 });
8843 let style = &self.style;
8844
8845 let rem_size = window.rem_size();
8846 let font_id = window.text_system().resolve_font(&style.text.font());
8847 let font_size = style.text.font_size.to_pixels(rem_size);
8848 let line_height = style.text.line_height_in_pixels(rem_size);
8849 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8850 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
8851 let glyph_grid_cell = size(em_advance, line_height);
8852
8853 let gutter_dimensions = snapshot
8854 .gutter_dimensions(
8855 font_id,
8856 font_size,
8857 self.max_line_number_width(&snapshot, window),
8858 cx,
8859 )
8860 .or_else(|| {
8861 self.editor.read(cx).offset_content.then(|| {
8862 GutterDimensions::default_with_margin(font_id, font_size, cx)
8863 })
8864 })
8865 .unwrap_or_default();
8866 let text_width = bounds.size.width - gutter_dimensions.width;
8867
8868 let settings = EditorSettings::get_global(cx);
8869 let scrollbars_shown = settings.scrollbar.show != ShowScrollbar::Never;
8870 let vertical_scrollbar_width = (scrollbars_shown
8871 && settings.scrollbar.axes.vertical
8872 && self.editor.read(cx).show_scrollbars.vertical)
8873 .then_some(style.scrollbar_width)
8874 .unwrap_or_default();
8875 let minimap_width = self
8876 .get_minimap_width(
8877 &settings.minimap,
8878 scrollbars_shown,
8879 text_width,
8880 em_width,
8881 font_size,
8882 rem_size,
8883 cx,
8884 )
8885 .unwrap_or_default();
8886
8887 let right_margin = minimap_width + vertical_scrollbar_width;
8888
8889 let editor_width =
8890 text_width - gutter_dimensions.margin - 2 * em_width - right_margin;
8891 let editor_margins = EditorMargins {
8892 gutter: gutter_dimensions,
8893 right: right_margin,
8894 };
8895
8896 snapshot = self.editor.update(cx, |editor, cx| {
8897 editor.last_bounds = Some(bounds);
8898 editor.gutter_dimensions = gutter_dimensions;
8899 editor.set_visible_line_count(
8900 (bounds.size.height / line_height) as f64,
8901 window,
8902 cx,
8903 );
8904 editor.set_visible_column_count(f64::from(editor_width / em_advance));
8905
8906 if matches!(
8907 editor.mode,
8908 EditorMode::AutoHeight { .. } | EditorMode::Minimap { .. }
8909 ) {
8910 snapshot
8911 } else {
8912 let wrap_width_for = |column: u32| (column as f32 * em_advance).ceil();
8913 let wrap_width = match editor.soft_wrap_mode(cx) {
8914 SoftWrap::GitDiff => None,
8915 SoftWrap::None => Some(wrap_width_for(MAX_LINE_LEN as u32 / 2)),
8916 SoftWrap::EditorWidth => Some(editor_width),
8917 SoftWrap::Column(column) => Some(wrap_width_for(column)),
8918 SoftWrap::Bounded(column) => {
8919 Some(editor_width.min(wrap_width_for(column)))
8920 }
8921 };
8922
8923 if editor.set_wrap_width(wrap_width, cx) {
8924 editor.snapshot(window, cx)
8925 } else {
8926 snapshot
8927 }
8928 }
8929 });
8930
8931 let hitbox = window.insert_hitbox(bounds, HitboxBehavior::Normal);
8932 let gutter_hitbox = window.insert_hitbox(
8933 gutter_bounds(bounds, gutter_dimensions),
8934 HitboxBehavior::Normal,
8935 );
8936 let text_hitbox = window.insert_hitbox(
8937 Bounds {
8938 origin: gutter_hitbox.top_right(),
8939 size: size(text_width, bounds.size.height),
8940 },
8941 HitboxBehavior::Normal,
8942 );
8943
8944 // Offset the content_bounds from the text_bounds by the gutter margin (which
8945 // is roughly half a character wide) to make hit testing work more like how we want.
8946 let content_offset = point(editor_margins.gutter.margin, Pixels::ZERO);
8947 let content_origin = text_hitbox.origin + content_offset;
8948
8949 let height_in_lines = f64::from(bounds.size.height / line_height);
8950 let max_row = snapshot.max_point().row().as_f64();
8951
8952 // The max scroll position for the top of the window
8953 let max_scroll_top = if matches!(
8954 snapshot.mode,
8955 EditorMode::SingleLine
8956 | EditorMode::AutoHeight { .. }
8957 | EditorMode::Full {
8958 sizing_behavior: SizingBehavior::ExcludeOverscrollMargin
8959 | SizingBehavior::SizeByContent,
8960 ..
8961 }
8962 ) {
8963 (max_row - height_in_lines + 1.).max(0.)
8964 } else {
8965 let settings = EditorSettings::get_global(cx);
8966 match settings.scroll_beyond_last_line {
8967 ScrollBeyondLastLine::OnePage => max_row,
8968 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
8969 ScrollBeyondLastLine::VerticalScrollMargin => {
8970 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
8971 .max(0.)
8972 }
8973 }
8974 };
8975
8976 let (
8977 autoscroll_request,
8978 autoscroll_containing_element,
8979 needs_horizontal_autoscroll,
8980 ) = self.editor.update(cx, |editor, cx| {
8981 let autoscroll_request = editor.scroll_manager.take_autoscroll_request();
8982
8983 let autoscroll_containing_element =
8984 autoscroll_request.is_some() || editor.has_pending_selection();
8985
8986 let (needs_horizontal_autoscroll, was_scrolled) = editor
8987 .autoscroll_vertically(
8988 bounds,
8989 line_height,
8990 max_scroll_top,
8991 autoscroll_request,
8992 window,
8993 cx,
8994 );
8995 if was_scrolled.0 {
8996 snapshot = editor.snapshot(window, cx);
8997 }
8998 (
8999 autoscroll_request,
9000 autoscroll_containing_element,
9001 needs_horizontal_autoscroll,
9002 )
9003 });
9004
9005 let mut scroll_position = snapshot.scroll_position();
9006 // The scroll position is a fractional point, the whole number of which represents
9007 // the top of the window in terms of display rows.
9008 let start_row = DisplayRow(scroll_position.y as u32);
9009 let max_row = snapshot.max_point().row();
9010 let end_row = cmp::min(
9011 (scroll_position.y + height_in_lines).ceil() as u32,
9012 max_row.next_row().0,
9013 );
9014 let end_row = DisplayRow(end_row);
9015
9016 let row_infos = snapshot
9017 .row_infos(start_row)
9018 .take((start_row..end_row).len())
9019 .collect::<Vec<RowInfo>>();
9020 let is_row_soft_wrapped = |row: usize| {
9021 row_infos
9022 .get(row)
9023 .is_none_or(|info| info.buffer_row.is_none())
9024 };
9025
9026 let start_anchor = if start_row == Default::default() {
9027 Anchor::min()
9028 } else {
9029 snapshot.buffer_snapshot().anchor_before(
9030 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
9031 )
9032 };
9033 let end_anchor = if end_row > max_row {
9034 Anchor::max()
9035 } else {
9036 snapshot.buffer_snapshot().anchor_before(
9037 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
9038 )
9039 };
9040
9041 let mut highlighted_rows = self
9042 .editor
9043 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
9044
9045 let is_light = cx.theme().appearance().is_light();
9046
9047 for (ix, row_info) in row_infos.iter().enumerate() {
9048 let Some(diff_status) = row_info.diff_status else {
9049 continue;
9050 };
9051
9052 let background_color = match diff_status.kind {
9053 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
9054 DiffHunkStatusKind::Deleted => {
9055 cx.theme().colors().version_control_deleted
9056 }
9057 DiffHunkStatusKind::Modified => {
9058 debug_panic!("modified diff status for row info");
9059 continue;
9060 }
9061 };
9062
9063 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
9064
9065 let hollow_highlight = LineHighlight {
9066 background: (background_color.opacity(if is_light {
9067 0.08
9068 } else {
9069 0.06
9070 }))
9071 .into(),
9072 border: Some(if is_light {
9073 background_color.opacity(0.48)
9074 } else {
9075 background_color.opacity(0.36)
9076 }),
9077 include_gutter: true,
9078 type_id: None,
9079 };
9080
9081 let filled_highlight = LineHighlight {
9082 background: solid_background(background_color.opacity(hunk_opacity)),
9083 border: None,
9084 include_gutter: true,
9085 type_id: None,
9086 };
9087
9088 let background = if Self::diff_hunk_hollow(diff_status, cx) {
9089 hollow_highlight
9090 } else {
9091 filled_highlight
9092 };
9093
9094 highlighted_rows
9095 .entry(start_row + DisplayRow(ix as u32))
9096 .or_insert(background);
9097 }
9098
9099 let highlighted_ranges = self
9100 .editor_with_selections(cx)
9101 .map(|editor| {
9102 editor.read(cx).background_highlights_in_range(
9103 start_anchor..end_anchor,
9104 &snapshot.display_snapshot,
9105 cx.theme(),
9106 )
9107 })
9108 .unwrap_or_default();
9109 let highlighted_gutter_ranges =
9110 self.editor.read(cx).gutter_highlights_in_range(
9111 start_anchor..end_anchor,
9112 &snapshot.display_snapshot,
9113 cx,
9114 );
9115
9116 let document_colors = self
9117 .editor
9118 .read(cx)
9119 .colors
9120 .as_ref()
9121 .map(|colors| colors.editor_display_highlights(&snapshot));
9122 let redacted_ranges = self.editor.read(cx).redacted_ranges(
9123 start_anchor..end_anchor,
9124 &snapshot.display_snapshot,
9125 cx,
9126 );
9127
9128 let (local_selections, selected_buffer_ids): (
9129 Vec<Selection<Point>>,
9130 Vec<BufferId>,
9131 ) = self
9132 .editor_with_selections(cx)
9133 .map(|editor| {
9134 editor.update(cx, |editor, cx| {
9135 let all_selections =
9136 editor.selections.all::<Point>(&snapshot.display_snapshot);
9137 let selected_buffer_ids =
9138 if editor.buffer_kind(cx) == ItemBufferKind::Singleton {
9139 Vec::new()
9140 } else {
9141 let mut selected_buffer_ids =
9142 Vec::with_capacity(all_selections.len());
9143
9144 for selection in all_selections {
9145 for buffer_id in snapshot
9146 .buffer_snapshot()
9147 .buffer_ids_for_range(selection.range())
9148 {
9149 if selected_buffer_ids.last() != Some(&buffer_id) {
9150 selected_buffer_ids.push(buffer_id);
9151 }
9152 }
9153 }
9154
9155 selected_buffer_ids
9156 };
9157
9158 let mut selections = editor.selections.disjoint_in_range(
9159 start_anchor..end_anchor,
9160 &snapshot.display_snapshot,
9161 );
9162 selections
9163 .extend(editor.selections.pending(&snapshot.display_snapshot));
9164
9165 (selections, selected_buffer_ids)
9166 })
9167 })
9168 .unwrap_or_default();
9169
9170 let (selections, mut active_rows, newest_selection_head) = self
9171 .layout_selections(
9172 start_anchor,
9173 end_anchor,
9174 &local_selections,
9175 &snapshot,
9176 start_row,
9177 end_row,
9178 window,
9179 cx,
9180 );
9181 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
9182 editor.active_breakpoints(start_row..end_row, window, cx)
9183 });
9184 for (display_row, (_, bp, state)) in &breakpoint_rows {
9185 if bp.is_enabled() && state.is_none_or(|s| s.verified) {
9186 active_rows.entry(*display_row).or_default().breakpoint = true;
9187 }
9188 }
9189
9190 let line_numbers = self.layout_line_numbers(
9191 Some(&gutter_hitbox),
9192 gutter_dimensions,
9193 line_height,
9194 scroll_position,
9195 start_row..end_row,
9196 &row_infos,
9197 &active_rows,
9198 newest_selection_head,
9199 &snapshot,
9200 window,
9201 cx,
9202 );
9203
9204 // We add the gutter breakpoint indicator to breakpoint_rows after painting
9205 // line numbers so we don't paint a line number debug accent color if a user
9206 // has their mouse over that line when a breakpoint isn't there
9207 self.editor.update(cx, |editor, _| {
9208 if let Some(phantom_breakpoint) = &mut editor
9209 .gutter_breakpoint_indicator
9210 .0
9211 .filter(|phantom_breakpoint| phantom_breakpoint.is_active)
9212 {
9213 // Is there a non-phantom breakpoint on this line?
9214 phantom_breakpoint.collides_with_existing_breakpoint = true;
9215 breakpoint_rows
9216 .entry(phantom_breakpoint.display_row)
9217 .or_insert_with(|| {
9218 let position = snapshot.display_point_to_anchor(
9219 DisplayPoint::new(phantom_breakpoint.display_row, 0),
9220 Bias::Right,
9221 );
9222 let breakpoint = Breakpoint::new_standard();
9223 phantom_breakpoint.collides_with_existing_breakpoint = false;
9224 (position, breakpoint, None)
9225 });
9226 }
9227 });
9228
9229 let mut expand_toggles =
9230 window.with_element_namespace("expand_toggles", |window| {
9231 self.layout_expand_toggles(
9232 &gutter_hitbox,
9233 gutter_dimensions,
9234 em_width,
9235 line_height,
9236 scroll_position,
9237 &row_infos,
9238 window,
9239 cx,
9240 )
9241 });
9242
9243 let mut crease_toggles =
9244 window.with_element_namespace("crease_toggles", |window| {
9245 self.layout_crease_toggles(
9246 start_row..end_row,
9247 &row_infos,
9248 &active_rows,
9249 &snapshot,
9250 window,
9251 cx,
9252 )
9253 });
9254 let crease_trailers =
9255 window.with_element_namespace("crease_trailers", |window| {
9256 self.layout_crease_trailers(
9257 row_infos.iter().copied(),
9258 &snapshot,
9259 window,
9260 cx,
9261 )
9262 });
9263
9264 let display_hunks = self.layout_gutter_diff_hunks(
9265 line_height,
9266 &gutter_hitbox,
9267 start_row..end_row,
9268 &snapshot,
9269 window,
9270 cx,
9271 );
9272
9273 let merged_highlighted_ranges =
9274 if let Some((_, colors)) = document_colors.as_ref() {
9275 &highlighted_ranges
9276 .clone()
9277 .into_iter()
9278 .chain(colors.clone())
9279 .collect()
9280 } else {
9281 &highlighted_ranges
9282 };
9283 let bg_segments_per_row = Self::bg_segments_per_row(
9284 start_row..end_row,
9285 &selections,
9286 &merged_highlighted_ranges,
9287 self.style.background,
9288 );
9289
9290 let mut line_layouts = Self::layout_lines(
9291 start_row..end_row,
9292 &snapshot,
9293 &self.style,
9294 editor_width,
9295 is_row_soft_wrapped,
9296 &bg_segments_per_row,
9297 window,
9298 cx,
9299 );
9300 let new_renderer_widths = (!is_minimap).then(|| {
9301 line_layouts
9302 .iter()
9303 .flat_map(|layout| &layout.fragments)
9304 .filter_map(|fragment| {
9305 if let LineFragment::Element { id, size, .. } = fragment {
9306 Some((*id, size.width))
9307 } else {
9308 None
9309 }
9310 })
9311 });
9312 if new_renderer_widths.is_some_and(|new_renderer_widths| {
9313 self.editor.update(cx, |editor, cx| {
9314 editor.update_renderer_widths(new_renderer_widths, cx)
9315 })
9316 }) {
9317 // If the fold widths have changed, we need to prepaint
9318 // the element again to account for any changes in
9319 // wrapping.
9320 return self.prepaint(None, _inspector_id, bounds, &mut (), window, cx);
9321 }
9322
9323 let longest_line_blame_width = self
9324 .editor
9325 .update(cx, |editor, cx| {
9326 if !editor.show_git_blame_inline {
9327 return None;
9328 }
9329 let blame = editor.blame.as_ref()?;
9330 let (_, blame_entry) = blame
9331 .update(cx, |blame, cx| {
9332 let row_infos =
9333 snapshot.row_infos(snapshot.longest_row()).next()?;
9334 blame.blame_for_rows(&[row_infos], cx).next()
9335 })
9336 .flatten()?;
9337 let mut element = render_inline_blame_entry(blame_entry, style, cx)?;
9338 let inline_blame_padding =
9339 ProjectSettings::get_global(cx).git.inline_blame.padding as f32
9340 * em_advance;
9341 Some(
9342 element
9343 .layout_as_root(AvailableSpace::min_size(), window, cx)
9344 .width
9345 + inline_blame_padding,
9346 )
9347 })
9348 .unwrap_or(Pixels::ZERO);
9349
9350 let longest_line_width = layout_line(
9351 snapshot.longest_row(),
9352 &snapshot,
9353 style,
9354 editor_width,
9355 is_row_soft_wrapped,
9356 window,
9357 cx,
9358 )
9359 .width;
9360
9361 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
9362 text_hitbox.bounds,
9363 glyph_grid_cell,
9364 size(
9365 longest_line_width,
9366 Pixels::from(max_row.as_f64() * f64::from(line_height)),
9367 ),
9368 longest_line_blame_width,
9369 EditorSettings::get_global(cx),
9370 );
9371
9372 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
9373
9374 let sticky_header_excerpt = if snapshot.buffer_snapshot().show_headers() {
9375 snapshot.sticky_header_excerpt(scroll_position.y)
9376 } else {
9377 None
9378 };
9379 let sticky_header_excerpt_id =
9380 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
9381
9382 let blocks = (!is_minimap)
9383 .then(|| {
9384 window.with_element_namespace("blocks", |window| {
9385 self.render_blocks(
9386 start_row..end_row,
9387 &snapshot,
9388 &hitbox,
9389 &text_hitbox,
9390 editor_width,
9391 &mut scroll_width,
9392 &editor_margins,
9393 em_width,
9394 gutter_dimensions.full_width(),
9395 line_height,
9396 &mut line_layouts,
9397 &local_selections,
9398 &selected_buffer_ids,
9399 is_row_soft_wrapped,
9400 sticky_header_excerpt_id,
9401 window,
9402 cx,
9403 )
9404 })
9405 })
9406 .unwrap_or_else(|| Ok((Vec::default(), HashMap::default())));
9407 let (mut blocks, row_block_types) = match blocks {
9408 Ok(blocks) => blocks,
9409 Err(resized_blocks) => {
9410 self.editor.update(cx, |editor, cx| {
9411 editor.resize_blocks(
9412 resized_blocks,
9413 autoscroll_request.map(|(autoscroll, _)| autoscroll),
9414 cx,
9415 )
9416 });
9417 return self.prepaint(None, _inspector_id, bounds, &mut (), window, cx);
9418 }
9419 };
9420
9421 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
9422 window.with_element_namespace("blocks", |window| {
9423 self.layout_sticky_buffer_header(
9424 sticky_header_excerpt,
9425 scroll_position,
9426 line_height,
9427 right_margin,
9428 &snapshot,
9429 &hitbox,
9430 &selected_buffer_ids,
9431 &blocks,
9432 window,
9433 cx,
9434 )
9435 })
9436 });
9437
9438 let start_buffer_row =
9439 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot()).row);
9440 let end_buffer_row =
9441 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot()).row);
9442
9443 let scroll_max: gpui::Point<ScrollPixelOffset> = point(
9444 ScrollPixelOffset::from(
9445 ((scroll_width - editor_width) / em_advance).max(0.0),
9446 ),
9447 max_scroll_top,
9448 );
9449
9450 self.editor.update(cx, |editor, cx| {
9451 if editor.scroll_manager.clamp_scroll_left(scroll_max.x) {
9452 scroll_position.x = scroll_position.x.min(scroll_max.x);
9453 }
9454
9455 if needs_horizontal_autoscroll.0
9456 && let Some(new_scroll_position) = editor.autoscroll_horizontally(
9457 start_row,
9458 editor_width,
9459 scroll_width,
9460 em_advance,
9461 &line_layouts,
9462 autoscroll_request,
9463 window,
9464 cx,
9465 )
9466 {
9467 scroll_position = new_scroll_position;
9468 }
9469 });
9470
9471 let scroll_pixel_position = point(
9472 scroll_position.x * f64::from(em_advance),
9473 scroll_position.y * f64::from(line_height),
9474 );
9475 let sticky_headers = if !is_minimap
9476 && is_singleton
9477 && EditorSettings::get_global(cx).sticky_scroll.enabled
9478 {
9479 self.layout_sticky_headers(
9480 &snapshot,
9481 editor_width,
9482 is_row_soft_wrapped,
9483 line_height,
9484 scroll_pixel_position,
9485 content_origin,
9486 &gutter_dimensions,
9487 &gutter_hitbox,
9488 &text_hitbox,
9489 window,
9490 cx,
9491 )
9492 } else {
9493 None
9494 };
9495 let indent_guides = self.layout_indent_guides(
9496 content_origin,
9497 text_hitbox.origin,
9498 start_buffer_row..end_buffer_row,
9499 scroll_pixel_position,
9500 line_height,
9501 &snapshot,
9502 window,
9503 cx,
9504 );
9505
9506 let crease_trailers =
9507 window.with_element_namespace("crease_trailers", |window| {
9508 self.prepaint_crease_trailers(
9509 crease_trailers,
9510 &line_layouts,
9511 line_height,
9512 content_origin,
9513 scroll_pixel_position,
9514 em_width,
9515 window,
9516 cx,
9517 )
9518 });
9519
9520 let (edit_prediction_popover, edit_prediction_popover_origin) = self
9521 .editor
9522 .update(cx, |editor, cx| {
9523 editor.render_edit_prediction_popover(
9524 &text_hitbox.bounds,
9525 content_origin,
9526 right_margin,
9527 &snapshot,
9528 start_row..end_row,
9529 scroll_position.y,
9530 scroll_position.y + height_in_lines,
9531 &line_layouts,
9532 line_height,
9533 scroll_position,
9534 scroll_pixel_position,
9535 newest_selection_head,
9536 editor_width,
9537 style,
9538 window,
9539 cx,
9540 )
9541 })
9542 .unzip();
9543
9544 let mut inline_diagnostics = self.layout_inline_diagnostics(
9545 &line_layouts,
9546 &crease_trailers,
9547 &row_block_types,
9548 content_origin,
9549 scroll_position,
9550 scroll_pixel_position,
9551 edit_prediction_popover_origin,
9552 start_row,
9553 end_row,
9554 line_height,
9555 em_width,
9556 style,
9557 window,
9558 cx,
9559 );
9560
9561 let mut inline_blame_layout = None;
9562 let mut inline_code_actions = None;
9563 if let Some(newest_selection_head) = newest_selection_head {
9564 let display_row = newest_selection_head.row();
9565 if (start_row..end_row).contains(&display_row)
9566 && !row_block_types.contains_key(&display_row)
9567 {
9568 inline_code_actions = self.layout_inline_code_actions(
9569 newest_selection_head,
9570 content_origin,
9571 scroll_position,
9572 scroll_pixel_position,
9573 line_height,
9574 &snapshot,
9575 window,
9576 cx,
9577 );
9578
9579 let line_ix = display_row.minus(start_row) as usize;
9580 if let (Some(row_info), Some(line_layout), Some(crease_trailer)) = (
9581 row_infos.get(line_ix),
9582 line_layouts.get(line_ix),
9583 crease_trailers.get(line_ix),
9584 ) {
9585 let crease_trailer_layout = crease_trailer.as_ref();
9586 if let Some(layout) = self.layout_inline_blame(
9587 display_row,
9588 row_info,
9589 line_layout,
9590 crease_trailer_layout,
9591 em_width,
9592 content_origin,
9593 scroll_position,
9594 scroll_pixel_position,
9595 line_height,
9596 &text_hitbox,
9597 window,
9598 cx,
9599 ) {
9600 inline_blame_layout = Some(layout);
9601 // Blame overrides inline diagnostics
9602 inline_diagnostics.remove(&display_row);
9603 }
9604 } else {
9605 log::error!(
9606 "bug: line_ix {} is out of bounds - row_infos.len(): {}, \
9607 line_layouts.len(): {}, \
9608 crease_trailers.len(): {}",
9609 line_ix,
9610 row_infos.len(),
9611 line_layouts.len(),
9612 crease_trailers.len(),
9613 );
9614 }
9615 }
9616 }
9617
9618 let blamed_display_rows = self.layout_blame_entries(
9619 &row_infos,
9620 em_width,
9621 scroll_position,
9622 line_height,
9623 &gutter_hitbox,
9624 gutter_dimensions.git_blame_entries_width,
9625 window,
9626 cx,
9627 );
9628
9629 let line_elements = self.prepaint_lines(
9630 start_row,
9631 &mut line_layouts,
9632 line_height,
9633 scroll_position,
9634 scroll_pixel_position,
9635 content_origin,
9636 window,
9637 cx,
9638 );
9639
9640 window.with_element_namespace("blocks", |window| {
9641 self.layout_blocks(
9642 &mut blocks,
9643 &hitbox,
9644 line_height,
9645 scroll_position,
9646 scroll_pixel_position,
9647 window,
9648 cx,
9649 );
9650 });
9651
9652 let cursors = self.collect_cursors(&snapshot, cx);
9653 let visible_row_range = start_row..end_row;
9654 let non_visible_cursors = cursors
9655 .iter()
9656 .any(|c| !visible_row_range.contains(&c.0.row()));
9657
9658 let visible_cursors = self.layout_visible_cursors(
9659 &snapshot,
9660 &selections,
9661 &row_block_types,
9662 start_row..end_row,
9663 &line_layouts,
9664 &text_hitbox,
9665 content_origin,
9666 scroll_position,
9667 scroll_pixel_position,
9668 line_height,
9669 em_width,
9670 em_advance,
9671 autoscroll_containing_element,
9672 window,
9673 cx,
9674 );
9675
9676 let scrollbars_layout = self.layout_scrollbars(
9677 &snapshot,
9678 &scrollbar_layout_information,
9679 content_offset,
9680 scroll_position,
9681 non_visible_cursors,
9682 right_margin,
9683 editor_width,
9684 window,
9685 cx,
9686 );
9687
9688 let gutter_settings = EditorSettings::get_global(cx).gutter;
9689
9690 let context_menu_layout =
9691 if let Some(newest_selection_head) = newest_selection_head {
9692 let newest_selection_point =
9693 newest_selection_head.to_point(&snapshot.display_snapshot);
9694 if (start_row..end_row).contains(&newest_selection_head.row()) {
9695 self.layout_cursor_popovers(
9696 line_height,
9697 &text_hitbox,
9698 content_origin,
9699 right_margin,
9700 start_row,
9701 scroll_pixel_position,
9702 &line_layouts,
9703 newest_selection_head,
9704 newest_selection_point,
9705 style,
9706 window,
9707 cx,
9708 )
9709 } else {
9710 None
9711 }
9712 } else {
9713 None
9714 };
9715
9716 self.layout_gutter_menu(
9717 line_height,
9718 &text_hitbox,
9719 content_origin,
9720 right_margin,
9721 scroll_pixel_position,
9722 gutter_dimensions.width - gutter_dimensions.left_padding,
9723 window,
9724 cx,
9725 );
9726
9727 let test_indicators = if gutter_settings.runnables {
9728 self.layout_run_indicators(
9729 line_height,
9730 start_row..end_row,
9731 &row_infos,
9732 scroll_position,
9733 &gutter_dimensions,
9734 &gutter_hitbox,
9735 &display_hunks,
9736 &snapshot,
9737 &mut breakpoint_rows,
9738 window,
9739 cx,
9740 )
9741 } else {
9742 Vec::new()
9743 };
9744
9745 let show_breakpoints = snapshot
9746 .show_breakpoints
9747 .unwrap_or(gutter_settings.breakpoints);
9748 let breakpoints = if show_breakpoints {
9749 self.layout_breakpoints(
9750 line_height,
9751 start_row..end_row,
9752 scroll_position,
9753 &gutter_dimensions,
9754 &gutter_hitbox,
9755 &display_hunks,
9756 &snapshot,
9757 breakpoint_rows,
9758 &row_infos,
9759 window,
9760 cx,
9761 )
9762 } else {
9763 Vec::new()
9764 };
9765
9766 self.layout_signature_help(
9767 &hitbox,
9768 content_origin,
9769 scroll_pixel_position,
9770 newest_selection_head,
9771 start_row,
9772 &line_layouts,
9773 line_height,
9774 em_width,
9775 context_menu_layout,
9776 window,
9777 cx,
9778 );
9779
9780 if !cx.has_active_drag() {
9781 self.layout_hover_popovers(
9782 &snapshot,
9783 &hitbox,
9784 start_row..end_row,
9785 content_origin,
9786 scroll_pixel_position,
9787 &line_layouts,
9788 line_height,
9789 em_width,
9790 context_menu_layout,
9791 window,
9792 cx,
9793 );
9794 }
9795
9796 let mouse_context_menu = self.layout_mouse_context_menu(
9797 &snapshot,
9798 start_row..end_row,
9799 content_origin,
9800 window,
9801 cx,
9802 );
9803
9804 window.with_element_namespace("crease_toggles", |window| {
9805 self.prepaint_crease_toggles(
9806 &mut crease_toggles,
9807 line_height,
9808 &gutter_dimensions,
9809 gutter_settings,
9810 scroll_pixel_position,
9811 &gutter_hitbox,
9812 window,
9813 cx,
9814 )
9815 });
9816
9817 window.with_element_namespace("expand_toggles", |window| {
9818 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
9819 });
9820
9821 let wrap_guides = self.layout_wrap_guides(
9822 em_advance,
9823 scroll_position,
9824 content_origin,
9825 scrollbars_layout.as_ref(),
9826 vertical_scrollbar_width,
9827 &hitbox,
9828 window,
9829 cx,
9830 );
9831
9832 let minimap = window.with_element_namespace("minimap", |window| {
9833 self.layout_minimap(
9834 &snapshot,
9835 minimap_width,
9836 scroll_position,
9837 &scrollbar_layout_information,
9838 scrollbars_layout.as_ref(),
9839 window,
9840 cx,
9841 )
9842 });
9843
9844 let invisible_symbol_font_size = font_size / 2.;
9845 let whitespace_map = &self
9846 .editor
9847 .read(cx)
9848 .buffer
9849 .read(cx)
9850 .language_settings(cx)
9851 .whitespace_map;
9852
9853 let tab_char = whitespace_map.tab.clone();
9854 let tab_len = tab_char.len();
9855 let tab_invisible = window.text_system().shape_line(
9856 tab_char,
9857 invisible_symbol_font_size,
9858 &[TextRun {
9859 len: tab_len,
9860 font: self.style.text.font(),
9861 color: cx.theme().colors().editor_invisible,
9862 ..Default::default()
9863 }],
9864 None,
9865 );
9866
9867 let space_char = whitespace_map.space.clone();
9868 let space_len = space_char.len();
9869 let space_invisible = window.text_system().shape_line(
9870 space_char,
9871 invisible_symbol_font_size,
9872 &[TextRun {
9873 len: space_len,
9874 font: self.style.text.font(),
9875 color: cx.theme().colors().editor_invisible,
9876 ..Default::default()
9877 }],
9878 None,
9879 );
9880
9881 let mode = snapshot.mode.clone();
9882
9883 let (diff_hunk_controls, diff_hunk_control_bounds) = if is_read_only {
9884 (vec![], vec![])
9885 } else {
9886 self.layout_diff_hunk_controls(
9887 start_row..end_row,
9888 &row_infos,
9889 &text_hitbox,
9890 newest_selection_head,
9891 line_height,
9892 right_margin,
9893 scroll_pixel_position,
9894 &display_hunks,
9895 &highlighted_rows,
9896 self.editor.clone(),
9897 window,
9898 cx,
9899 )
9900 };
9901
9902 let position_map = Rc::new(PositionMap {
9903 size: bounds.size,
9904 visible_row_range,
9905 scroll_position,
9906 scroll_pixel_position,
9907 scroll_max,
9908 line_layouts,
9909 line_height,
9910 em_width,
9911 em_advance,
9912 snapshot,
9913 gutter_hitbox: gutter_hitbox.clone(),
9914 text_hitbox: text_hitbox.clone(),
9915 inline_blame_bounds: inline_blame_layout
9916 .as_ref()
9917 .map(|layout| (layout.bounds, layout.buffer_id, layout.entry.clone())),
9918 display_hunks: display_hunks.clone(),
9919 diff_hunk_control_bounds,
9920 });
9921
9922 self.editor.update(cx, |editor, _| {
9923 editor.last_position_map = Some(position_map.clone())
9924 });
9925
9926 EditorLayout {
9927 mode,
9928 position_map,
9929 visible_display_row_range: start_row..end_row,
9930 wrap_guides,
9931 indent_guides,
9932 hitbox,
9933 gutter_hitbox,
9934 display_hunks,
9935 content_origin,
9936 scrollbars_layout,
9937 minimap,
9938 active_rows,
9939 highlighted_rows,
9940 highlighted_ranges,
9941 highlighted_gutter_ranges,
9942 redacted_ranges,
9943 document_colors,
9944 line_elements,
9945 line_numbers,
9946 blamed_display_rows,
9947 inline_diagnostics,
9948 inline_blame_layout,
9949 inline_code_actions,
9950 blocks,
9951 cursors,
9952 visible_cursors,
9953 selections,
9954 edit_prediction_popover,
9955 diff_hunk_controls,
9956 mouse_context_menu,
9957 test_indicators,
9958 breakpoints,
9959 crease_toggles,
9960 crease_trailers,
9961 tab_invisible,
9962 space_invisible,
9963 sticky_buffer_header,
9964 sticky_headers,
9965 expand_toggles,
9966 }
9967 })
9968 })
9969 })
9970 }
9971
9972 fn paint(
9973 &mut self,
9974 _: Option<&GlobalElementId>,
9975 _inspector_id: Option<&gpui::InspectorElementId>,
9976 bounds: Bounds<gpui::Pixels>,
9977 _: &mut Self::RequestLayoutState,
9978 layout: &mut Self::PrepaintState,
9979 window: &mut Window,
9980 cx: &mut App,
9981 ) {
9982 if !layout.mode.is_minimap() {
9983 let focus_handle = self.editor.focus_handle(cx);
9984 let key_context = self
9985 .editor
9986 .update(cx, |editor, cx| editor.key_context(window, cx));
9987
9988 window.set_key_context(key_context);
9989 window.handle_input(
9990 &focus_handle,
9991 ElementInputHandler::new(bounds, self.editor.clone()),
9992 cx,
9993 );
9994 self.register_actions(window, cx);
9995 self.register_key_listeners(window, cx, layout);
9996 }
9997
9998 let text_style = TextStyleRefinement {
9999 font_size: Some(self.style.text.font_size),
10000 line_height: Some(self.style.text.line_height),
10001 ..Default::default()
10002 };
10003 let rem_size = self.rem_size(cx);
10004 window.with_rem_size(rem_size, |window| {
10005 window.with_text_style(Some(text_style), |window| {
10006 window.with_content_mask(Some(ContentMask { bounds }), |window| {
10007 self.paint_mouse_listeners(layout, window, cx);
10008 self.paint_background(layout, window, cx);
10009 self.paint_indent_guides(layout, window, cx);
10010
10011 if layout.gutter_hitbox.size.width > Pixels::ZERO {
10012 self.paint_blamed_display_rows(layout, window, cx);
10013 self.paint_line_numbers(layout, window, cx);
10014 }
10015
10016 self.paint_text(layout, window, cx);
10017
10018 if layout.gutter_hitbox.size.width > Pixels::ZERO {
10019 self.paint_gutter_highlights(layout, window, cx);
10020 self.paint_gutter_indicators(layout, window, cx);
10021 }
10022
10023 if !layout.blocks.is_empty() {
10024 window.with_element_namespace("blocks", |window| {
10025 self.paint_blocks(layout, window, cx);
10026 });
10027 }
10028
10029 window.with_element_namespace("blocks", |window| {
10030 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
10031 sticky_header.paint(window, cx)
10032 }
10033 });
10034
10035 self.paint_sticky_headers(layout, window, cx);
10036 self.paint_minimap(layout, window, cx);
10037 self.paint_scrollbars(layout, window, cx);
10038 self.paint_edit_prediction_popover(layout, window, cx);
10039 self.paint_mouse_context_menu(layout, window, cx);
10040 });
10041 })
10042 })
10043 }
10044}
10045
10046pub(super) fn gutter_bounds(
10047 editor_bounds: Bounds<Pixels>,
10048 gutter_dimensions: GutterDimensions,
10049) -> Bounds<Pixels> {
10050 Bounds {
10051 origin: editor_bounds.origin,
10052 size: size(gutter_dimensions.width, editor_bounds.size.height),
10053 }
10054}
10055
10056#[derive(Clone, Copy)]
10057struct ContextMenuLayout {
10058 y_flipped: bool,
10059 bounds: Bounds<Pixels>,
10060}
10061
10062/// Holds information required for layouting the editor scrollbars.
10063struct ScrollbarLayoutInformation {
10064 /// The bounds of the editor area (excluding the content offset).
10065 editor_bounds: Bounds<Pixels>,
10066 /// The available range to scroll within the document.
10067 scroll_range: Size<Pixels>,
10068 /// The space available for one glyph in the editor.
10069 glyph_grid_cell: Size<Pixels>,
10070}
10071
10072impl ScrollbarLayoutInformation {
10073 pub fn new(
10074 editor_bounds: Bounds<Pixels>,
10075 glyph_grid_cell: Size<Pixels>,
10076 document_size: Size<Pixels>,
10077 longest_line_blame_width: Pixels,
10078 settings: &EditorSettings,
10079 ) -> Self {
10080 let vertical_overscroll = match settings.scroll_beyond_last_line {
10081 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
10082 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
10083 ScrollBeyondLastLine::VerticalScrollMargin => {
10084 (1.0 + settings.vertical_scroll_margin) as f32 * glyph_grid_cell.height
10085 }
10086 };
10087
10088 let overscroll = size(longest_line_blame_width, vertical_overscroll);
10089
10090 ScrollbarLayoutInformation {
10091 editor_bounds,
10092 scroll_range: document_size + overscroll,
10093 glyph_grid_cell,
10094 }
10095 }
10096}
10097
10098impl IntoElement for EditorElement {
10099 type Element = Self;
10100
10101 fn into_element(self) -> Self::Element {
10102 self
10103 }
10104}
10105
10106pub struct EditorLayout {
10107 position_map: Rc<PositionMap>,
10108 hitbox: Hitbox,
10109 gutter_hitbox: Hitbox,
10110 content_origin: gpui::Point<Pixels>,
10111 scrollbars_layout: Option<EditorScrollbars>,
10112 minimap: Option<MinimapLayout>,
10113 mode: EditorMode,
10114 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
10115 indent_guides: Option<Vec<IndentGuideLayout>>,
10116 visible_display_row_range: Range<DisplayRow>,
10117 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
10118 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
10119 line_elements: SmallVec<[AnyElement; 1]>,
10120 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
10121 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
10122 blamed_display_rows: Option<Vec<AnyElement>>,
10123 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
10124 inline_blame_layout: Option<InlineBlameLayout>,
10125 inline_code_actions: Option<AnyElement>,
10126 blocks: Vec<BlockLayout>,
10127 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
10128 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
10129 redacted_ranges: Vec<Range<DisplayPoint>>,
10130 cursors: Vec<(DisplayPoint, Hsla)>,
10131 visible_cursors: Vec<CursorLayout>,
10132 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
10133 test_indicators: Vec<AnyElement>,
10134 breakpoints: Vec<AnyElement>,
10135 crease_toggles: Vec<Option<AnyElement>>,
10136 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
10137 diff_hunk_controls: Vec<AnyElement>,
10138 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
10139 edit_prediction_popover: Option<AnyElement>,
10140 mouse_context_menu: Option<AnyElement>,
10141 tab_invisible: ShapedLine,
10142 space_invisible: ShapedLine,
10143 sticky_buffer_header: Option<AnyElement>,
10144 sticky_headers: Option<StickyHeaders>,
10145 document_colors: Option<(DocumentColorsRenderMode, Vec<(Range<DisplayPoint>, Hsla)>)>,
10146}
10147
10148struct StickyHeaders {
10149 lines: Vec<StickyHeaderLine>,
10150 gutter_background: Hsla,
10151 content_background: Hsla,
10152 gutter_right_padding: Pixels,
10153}
10154
10155struct StickyHeaderLine {
10156 row: DisplayRow,
10157 offset: Pixels,
10158 line: LineWithInvisibles,
10159 line_number: Option<ShapedLine>,
10160 elements: SmallVec<[AnyElement; 1]>,
10161 available_text_width: Pixels,
10162 target_anchor: Anchor,
10163 hitbox: Hitbox,
10164}
10165
10166impl EditorLayout {
10167 fn line_end_overshoot(&self) -> Pixels {
10168 0.15 * self.position_map.line_height
10169 }
10170}
10171
10172impl StickyHeaders {
10173 fn paint(
10174 &mut self,
10175 layout: &mut EditorLayout,
10176 whitespace_setting: ShowWhitespaceSetting,
10177 window: &mut Window,
10178 cx: &mut App,
10179 ) {
10180 let line_height = layout.position_map.line_height;
10181
10182 for line in self.lines.iter_mut().rev() {
10183 window.paint_layer(
10184 Bounds::new(
10185 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
10186 size(line.hitbox.size.width, line_height),
10187 ),
10188 |window| {
10189 let gutter_bounds = Bounds::new(
10190 layout.gutter_hitbox.origin + point(Pixels::ZERO, line.offset),
10191 size(layout.gutter_hitbox.size.width, line_height),
10192 );
10193 window.paint_quad(fill(gutter_bounds, self.gutter_background));
10194
10195 let text_bounds = Bounds::new(
10196 layout.position_map.text_hitbox.origin + point(Pixels::ZERO, line.offset),
10197 size(line.available_text_width, line_height),
10198 );
10199 window.paint_quad(fill(text_bounds, self.content_background));
10200
10201 if line.hitbox.is_hovered(window) {
10202 let hover_overlay = cx.theme().colors().panel_overlay_hover;
10203 window.paint_quad(fill(gutter_bounds, hover_overlay));
10204 window.paint_quad(fill(text_bounds, hover_overlay));
10205 }
10206
10207 line.paint(
10208 layout,
10209 self.gutter_right_padding,
10210 line.available_text_width,
10211 layout.content_origin,
10212 line_height,
10213 whitespace_setting,
10214 window,
10215 cx,
10216 );
10217 },
10218 );
10219
10220 window.set_cursor_style(CursorStyle::PointingHand, &line.hitbox);
10221 }
10222 }
10223}
10224
10225impl StickyHeaderLine {
10226 fn new(
10227 row: DisplayRow,
10228 offset: Pixels,
10229 mut line: LineWithInvisibles,
10230 line_number: Option<ShapedLine>,
10231 target_anchor: Anchor,
10232 line_height: Pixels,
10233 scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
10234 content_origin: gpui::Point<Pixels>,
10235 gutter_hitbox: &Hitbox,
10236 text_hitbox: &Hitbox,
10237 window: &mut Window,
10238 cx: &mut App,
10239 ) -> Self {
10240 let mut elements = SmallVec::<[AnyElement; 1]>::new();
10241 line.prepaint_with_custom_offset(
10242 line_height,
10243 scroll_pixel_position,
10244 content_origin,
10245 offset,
10246 &mut elements,
10247 window,
10248 cx,
10249 );
10250
10251 let hitbox_bounds = Bounds::new(
10252 gutter_hitbox.origin + point(Pixels::ZERO, offset),
10253 size(text_hitbox.right() - gutter_hitbox.left(), line_height),
10254 );
10255 let available_text_width =
10256 (hitbox_bounds.size.width - gutter_hitbox.size.width).max(Pixels::ZERO);
10257
10258 Self {
10259 row,
10260 offset,
10261 line,
10262 line_number,
10263 elements,
10264 available_text_width,
10265 target_anchor,
10266 hitbox: window.insert_hitbox(hitbox_bounds, HitboxBehavior::BlockMouseExceptScroll),
10267 }
10268 }
10269
10270 fn paint(
10271 &mut self,
10272 layout: &EditorLayout,
10273 gutter_right_padding: Pixels,
10274 available_text_width: Pixels,
10275 content_origin: gpui::Point<Pixels>,
10276 line_height: Pixels,
10277 whitespace_setting: ShowWhitespaceSetting,
10278 window: &mut Window,
10279 cx: &mut App,
10280 ) {
10281 window.with_content_mask(
10282 Some(ContentMask {
10283 bounds: Bounds::new(
10284 layout.position_map.text_hitbox.bounds.origin
10285 + point(Pixels::ZERO, self.offset),
10286 size(available_text_width, line_height),
10287 ),
10288 }),
10289 |window| {
10290 self.line.draw_with_custom_offset(
10291 layout,
10292 self.row,
10293 content_origin,
10294 self.offset,
10295 whitespace_setting,
10296 &[],
10297 window,
10298 cx,
10299 );
10300 for element in &mut self.elements {
10301 element.paint(window, cx);
10302 }
10303 },
10304 );
10305
10306 if let Some(line_number) = &self.line_number {
10307 let gutter_origin = layout.gutter_hitbox.origin + point(Pixels::ZERO, self.offset);
10308 let gutter_width = layout.gutter_hitbox.size.width;
10309 let origin = point(
10310 gutter_origin.x + gutter_width - gutter_right_padding - line_number.width,
10311 gutter_origin.y,
10312 );
10313 line_number.paint(origin, line_height, window, cx).log_err();
10314 }
10315 }
10316}
10317
10318#[derive(Debug)]
10319struct LineNumberSegment {
10320 shaped_line: ShapedLine,
10321 hitbox: Option<Hitbox>,
10322}
10323
10324#[derive(Debug)]
10325struct LineNumberLayout {
10326 segments: SmallVec<[LineNumberSegment; 1]>,
10327}
10328
10329struct ColoredRange<T> {
10330 start: T,
10331 end: T,
10332 color: Hsla,
10333}
10334
10335impl Along for ScrollbarAxes {
10336 type Unit = bool;
10337
10338 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
10339 match axis {
10340 ScrollbarAxis::Horizontal => self.horizontal,
10341 ScrollbarAxis::Vertical => self.vertical,
10342 }
10343 }
10344
10345 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
10346 match axis {
10347 ScrollbarAxis::Horizontal => ScrollbarAxes {
10348 horizontal: f(self.horizontal),
10349 vertical: self.vertical,
10350 },
10351 ScrollbarAxis::Vertical => ScrollbarAxes {
10352 horizontal: self.horizontal,
10353 vertical: f(self.vertical),
10354 },
10355 }
10356 }
10357}
10358
10359#[derive(Clone)]
10360struct EditorScrollbars {
10361 pub vertical: Option<ScrollbarLayout>,
10362 pub horizontal: Option<ScrollbarLayout>,
10363 pub visible: bool,
10364}
10365
10366impl EditorScrollbars {
10367 pub fn from_scrollbar_axes(
10368 show_scrollbar: ScrollbarAxes,
10369 layout_information: &ScrollbarLayoutInformation,
10370 content_offset: gpui::Point<Pixels>,
10371 scroll_position: gpui::Point<f64>,
10372 scrollbar_width: Pixels,
10373 right_margin: Pixels,
10374 editor_width: Pixels,
10375 show_scrollbars: bool,
10376 scrollbar_state: Option<&ActiveScrollbarState>,
10377 window: &mut Window,
10378 ) -> Self {
10379 let ScrollbarLayoutInformation {
10380 editor_bounds,
10381 scroll_range,
10382 glyph_grid_cell,
10383 } = layout_information;
10384
10385 let viewport_size = size(editor_width, editor_bounds.size.height);
10386
10387 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
10388 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
10389 Corner::BottomLeft,
10390 editor_bounds.bottom_left(),
10391 size(
10392 // The horizontal viewport size differs from the space available for the
10393 // horizontal scrollbar, so we have to manually stitch it together here.
10394 editor_bounds.size.width - right_margin,
10395 scrollbar_width,
10396 ),
10397 ),
10398 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
10399 Corner::TopRight,
10400 editor_bounds.top_right(),
10401 size(scrollbar_width, viewport_size.height),
10402 ),
10403 };
10404
10405 let mut create_scrollbar_layout = |axis| {
10406 let viewport_size = viewport_size.along(axis);
10407 let scroll_range = scroll_range.along(axis);
10408
10409 // We always want a vertical scrollbar track for scrollbar diagnostic visibility.
10410 (show_scrollbar.along(axis)
10411 && (axis == ScrollbarAxis::Vertical || scroll_range > viewport_size))
10412 .then(|| {
10413 ScrollbarLayout::new(
10414 window.insert_hitbox(scrollbar_bounds_for(axis), HitboxBehavior::Normal),
10415 viewport_size,
10416 scroll_range,
10417 glyph_grid_cell.along(axis),
10418 content_offset.along(axis),
10419 scroll_position.along(axis),
10420 show_scrollbars,
10421 axis,
10422 )
10423 .with_thumb_state(
10424 scrollbar_state.and_then(|state| state.thumb_state_for_axis(axis)),
10425 )
10426 })
10427 };
10428
10429 Self {
10430 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
10431 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
10432 visible: show_scrollbars,
10433 }
10434 }
10435
10436 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
10437 [
10438 (&self.vertical, ScrollbarAxis::Vertical),
10439 (&self.horizontal, ScrollbarAxis::Horizontal),
10440 ]
10441 .into_iter()
10442 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
10443 }
10444
10445 /// Returns the currently hovered scrollbar axis, if any.
10446 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
10447 self.iter_scrollbars()
10448 .find(|s| s.0.hitbox.is_hovered(window))
10449 }
10450}
10451
10452#[derive(Clone)]
10453struct ScrollbarLayout {
10454 hitbox: Hitbox,
10455 visible_range: Range<ScrollOffset>,
10456 text_unit_size: Pixels,
10457 thumb_bounds: Option<Bounds<Pixels>>,
10458 thumb_state: ScrollbarThumbState,
10459}
10460
10461impl ScrollbarLayout {
10462 const BORDER_WIDTH: Pixels = px(1.0);
10463 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
10464 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
10465 const MIN_THUMB_SIZE: Pixels = px(25.0);
10466
10467 fn new(
10468 scrollbar_track_hitbox: Hitbox,
10469 viewport_size: Pixels,
10470 scroll_range: Pixels,
10471 glyph_space: Pixels,
10472 content_offset: Pixels,
10473 scroll_position: ScrollOffset,
10474 show_thumb: bool,
10475 axis: ScrollbarAxis,
10476 ) -> Self {
10477 let track_bounds = scrollbar_track_hitbox.bounds;
10478 // The length of the track available to the scrollbar thumb. We deliberately
10479 // exclude the content size here so that the thumb aligns with the content.
10480 let track_length = track_bounds.size.along(axis) - content_offset;
10481
10482 Self::new_with_hitbox_and_track_length(
10483 scrollbar_track_hitbox,
10484 track_length,
10485 viewport_size,
10486 scroll_range.into(),
10487 glyph_space,
10488 content_offset.into(),
10489 scroll_position,
10490 show_thumb,
10491 axis,
10492 )
10493 }
10494
10495 fn for_minimap(
10496 minimap_track_hitbox: Hitbox,
10497 visible_lines: f64,
10498 total_editor_lines: f64,
10499 minimap_line_height: Pixels,
10500 scroll_position: ScrollOffset,
10501 minimap_scroll_top: ScrollOffset,
10502 show_thumb: bool,
10503 ) -> Self {
10504 // The scrollbar thumb size is calculated as
10505 // (visible_content/total_content) Γ scrollbar_track_length.
10506 //
10507 // For the minimap's thumb layout, we leverage this by setting the
10508 // scrollbar track length to the entire document size (using minimap line
10509 // height). This creates a thumb that exactly represents the editor
10510 // viewport scaled to minimap proportions.
10511 //
10512 // We adjust the thumb position relative to `minimap_scroll_top` to
10513 // accommodate for the deliberately oversized track.
10514 //
10515 // This approach ensures that the minimap thumb accurately reflects the
10516 // editor's current scroll position whilst nicely synchronizing the minimap
10517 // thumb and scrollbar thumb.
10518 let scroll_range = total_editor_lines * f64::from(minimap_line_height);
10519 let viewport_size = visible_lines * f64::from(minimap_line_height);
10520
10521 let track_top_offset = -minimap_scroll_top * f64::from(minimap_line_height);
10522
10523 Self::new_with_hitbox_and_track_length(
10524 minimap_track_hitbox,
10525 Pixels::from(scroll_range),
10526 Pixels::from(viewport_size),
10527 scroll_range,
10528 minimap_line_height,
10529 track_top_offset,
10530 scroll_position,
10531 show_thumb,
10532 ScrollbarAxis::Vertical,
10533 )
10534 }
10535
10536 fn new_with_hitbox_and_track_length(
10537 scrollbar_track_hitbox: Hitbox,
10538 track_length: Pixels,
10539 viewport_size: Pixels,
10540 scroll_range: f64,
10541 glyph_space: Pixels,
10542 content_offset: ScrollOffset,
10543 scroll_position: ScrollOffset,
10544 show_thumb: bool,
10545 axis: ScrollbarAxis,
10546 ) -> Self {
10547 let text_units_per_page = f64::from(viewport_size / glyph_space);
10548 let visible_range = scroll_position..scroll_position + text_units_per_page;
10549 let total_text_units = scroll_range / f64::from(glyph_space);
10550
10551 let thumb_percentage = text_units_per_page / total_text_units;
10552 let thumb_size = Pixels::from(ScrollOffset::from(track_length) * thumb_percentage)
10553 .max(ScrollbarLayout::MIN_THUMB_SIZE)
10554 .min(track_length);
10555
10556 let text_unit_divisor = (total_text_units - text_units_per_page).max(0.);
10557
10558 let content_larger_than_viewport = text_unit_divisor > 0.;
10559
10560 let text_unit_size = if content_larger_than_viewport {
10561 Pixels::from(ScrollOffset::from(track_length - thumb_size) / text_unit_divisor)
10562 } else {
10563 glyph_space
10564 };
10565
10566 let thumb_bounds = (show_thumb && content_larger_than_viewport).then(|| {
10567 Self::thumb_bounds(
10568 &scrollbar_track_hitbox,
10569 content_offset,
10570 visible_range.start,
10571 text_unit_size,
10572 thumb_size,
10573 axis,
10574 )
10575 });
10576
10577 ScrollbarLayout {
10578 hitbox: scrollbar_track_hitbox,
10579 visible_range,
10580 text_unit_size,
10581 thumb_bounds,
10582 thumb_state: Default::default(),
10583 }
10584 }
10585
10586 fn with_thumb_state(self, thumb_state: Option<ScrollbarThumbState>) -> Self {
10587 if let Some(thumb_state) = thumb_state {
10588 Self {
10589 thumb_state,
10590 ..self
10591 }
10592 } else {
10593 self
10594 }
10595 }
10596
10597 fn thumb_bounds(
10598 scrollbar_track: &Hitbox,
10599 content_offset: f64,
10600 visible_range_start: f64,
10601 text_unit_size: Pixels,
10602 thumb_size: Pixels,
10603 axis: ScrollbarAxis,
10604 ) -> Bounds<Pixels> {
10605 let thumb_origin = scrollbar_track.origin.apply_along(axis, |origin| {
10606 origin
10607 + Pixels::from(
10608 content_offset + visible_range_start * ScrollOffset::from(text_unit_size),
10609 )
10610 });
10611 Bounds::new(
10612 thumb_origin,
10613 scrollbar_track.size.apply_along(axis, |_| thumb_size),
10614 )
10615 }
10616
10617 fn thumb_hovered(&self, position: &gpui::Point<Pixels>) -> bool {
10618 self.thumb_bounds
10619 .is_some_and(|bounds| bounds.contains(position))
10620 }
10621
10622 fn marker_quads_for_ranges(
10623 &self,
10624 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
10625 column: Option<usize>,
10626 ) -> Vec<PaintQuad> {
10627 struct MinMax {
10628 min: Pixels,
10629 max: Pixels,
10630 }
10631 let (x_range, height_limit) = if let Some(column) = column {
10632 let column_width = ((self.hitbox.size.width - Self::BORDER_WIDTH) / 3.0).floor();
10633 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
10634 let end = start + column_width;
10635 (
10636 Range { start, end },
10637 MinMax {
10638 min: Self::MIN_MARKER_HEIGHT,
10639 max: px(f32::MAX),
10640 },
10641 )
10642 } else {
10643 (
10644 Range {
10645 start: Self::BORDER_WIDTH,
10646 end: self.hitbox.size.width,
10647 },
10648 MinMax {
10649 min: Self::LINE_MARKER_HEIGHT,
10650 max: Self::LINE_MARKER_HEIGHT,
10651 },
10652 )
10653 };
10654
10655 let row_to_y = |row: DisplayRow| row.as_f64() as f32 * self.text_unit_size;
10656 let mut pixel_ranges = row_ranges
10657 .into_iter()
10658 .map(|range| {
10659 let start_y = row_to_y(range.start);
10660 let end_y = row_to_y(range.end)
10661 + self
10662 .text_unit_size
10663 .max(height_limit.min)
10664 .min(height_limit.max);
10665 ColoredRange {
10666 start: start_y,
10667 end: end_y,
10668 color: range.color,
10669 }
10670 })
10671 .peekable();
10672
10673 let mut quads = Vec::new();
10674 while let Some(mut pixel_range) = pixel_ranges.next() {
10675 while let Some(next_pixel_range) = pixel_ranges.peek() {
10676 if pixel_range.end >= next_pixel_range.start - px(1.0)
10677 && pixel_range.color == next_pixel_range.color
10678 {
10679 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
10680 pixel_ranges.next();
10681 } else {
10682 break;
10683 }
10684 }
10685
10686 let bounds = Bounds::from_corners(
10687 point(x_range.start, pixel_range.start),
10688 point(x_range.end, pixel_range.end),
10689 );
10690 quads.push(quad(
10691 bounds,
10692 Corners::default(),
10693 pixel_range.color,
10694 Edges::default(),
10695 Hsla::transparent_black(),
10696 BorderStyle::default(),
10697 ));
10698 }
10699
10700 quads
10701 }
10702}
10703
10704struct MinimapLayout {
10705 pub minimap: AnyElement,
10706 pub thumb_layout: ScrollbarLayout,
10707 pub minimap_scroll_top: ScrollOffset,
10708 pub minimap_line_height: Pixels,
10709 pub thumb_border_style: MinimapThumbBorder,
10710 pub max_scroll_top: ScrollOffset,
10711}
10712
10713impl MinimapLayout {
10714 /// The minimum width of the minimap in columns. If the minimap is smaller than this, it will be hidden.
10715 const MINIMAP_MIN_WIDTH_COLUMNS: f32 = 20.;
10716 /// The minimap width as a percentage of the editor width.
10717 const MINIMAP_WIDTH_PCT: f32 = 0.15;
10718 /// Calculates the scroll top offset the minimap editor has to have based on the
10719 /// current scroll progress.
10720 fn calculate_minimap_top_offset(
10721 document_lines: f64,
10722 visible_editor_lines: f64,
10723 visible_minimap_lines: f64,
10724 scroll_position: f64,
10725 ) -> ScrollOffset {
10726 let non_visible_document_lines = (document_lines - visible_editor_lines).max(0.);
10727 if non_visible_document_lines == 0. {
10728 0.
10729 } else {
10730 let scroll_percentage = (scroll_position / non_visible_document_lines).clamp(0., 1.);
10731 scroll_percentage * (document_lines - visible_minimap_lines).max(0.)
10732 }
10733 }
10734}
10735
10736struct CreaseTrailerLayout {
10737 element: AnyElement,
10738 bounds: Bounds<Pixels>,
10739}
10740
10741pub(crate) struct PositionMap {
10742 pub size: Size<Pixels>,
10743 pub line_height: Pixels,
10744 pub scroll_position: gpui::Point<ScrollOffset>,
10745 pub scroll_pixel_position: gpui::Point<ScrollPixelOffset>,
10746 pub scroll_max: gpui::Point<ScrollOffset>,
10747 pub em_width: Pixels,
10748 pub em_advance: Pixels,
10749 pub visible_row_range: Range<DisplayRow>,
10750 pub line_layouts: Vec<LineWithInvisibles>,
10751 pub snapshot: EditorSnapshot,
10752 pub text_hitbox: Hitbox,
10753 pub gutter_hitbox: Hitbox,
10754 pub inline_blame_bounds: Option<(Bounds<Pixels>, BufferId, BlameEntry)>,
10755 pub display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
10756 pub diff_hunk_control_bounds: Vec<(DisplayRow, Bounds<Pixels>)>,
10757}
10758
10759#[derive(Debug, Copy, Clone)]
10760pub struct PointForPosition {
10761 pub previous_valid: DisplayPoint,
10762 pub next_valid: DisplayPoint,
10763 pub exact_unclipped: DisplayPoint,
10764 pub column_overshoot_after_line_end: u32,
10765}
10766
10767impl PointForPosition {
10768 pub fn as_valid(&self) -> Option<DisplayPoint> {
10769 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
10770 Some(self.previous_valid)
10771 } else {
10772 None
10773 }
10774 }
10775
10776 pub fn intersects_selection(&self, selection: &Selection<DisplayPoint>) -> bool {
10777 let Some(valid_point) = self.as_valid() else {
10778 return false;
10779 };
10780 let range = selection.range();
10781
10782 let candidate_row = valid_point.row();
10783 let candidate_col = valid_point.column();
10784
10785 let start_row = range.start.row();
10786 let start_col = range.start.column();
10787 let end_row = range.end.row();
10788 let end_col = range.end.column();
10789
10790 if candidate_row < start_row || candidate_row > end_row {
10791 false
10792 } else if start_row == end_row {
10793 candidate_col >= start_col && candidate_col < end_col
10794 } else if candidate_row == start_row {
10795 candidate_col >= start_col
10796 } else if candidate_row == end_row {
10797 candidate_col < end_col
10798 } else {
10799 true
10800 }
10801 }
10802}
10803
10804impl PositionMap {
10805 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
10806 let text_bounds = self.text_hitbox.bounds;
10807 let scroll_position = self.snapshot.scroll_position();
10808 let position = position - text_bounds.origin;
10809 let y = position.y.max(px(0.)).min(self.size.height);
10810 let x = position.x + (scroll_position.x as f32 * self.em_advance);
10811 let row = ((y / self.line_height) as f64 + scroll_position.y) as u32;
10812
10813 let (column, x_overshoot_after_line_end) = if let Some(line) = self
10814 .line_layouts
10815 .get(row as usize - scroll_position.y as usize)
10816 {
10817 if let Some(ix) = line.index_for_x(x) {
10818 (ix as u32, px(0.))
10819 } else {
10820 (line.len as u32, px(0.).max(x - line.width))
10821 }
10822 } else {
10823 (0, x)
10824 };
10825
10826 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
10827 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
10828 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
10829
10830 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
10831 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
10832 PointForPosition {
10833 previous_valid,
10834 next_valid,
10835 exact_unclipped,
10836 column_overshoot_after_line_end,
10837 }
10838 }
10839}
10840
10841struct BlockLayout {
10842 id: BlockId,
10843 x_offset: Pixels,
10844 row: Option<DisplayRow>,
10845 element: AnyElement,
10846 available_space: Size<AvailableSpace>,
10847 style: BlockStyle,
10848 overlaps_gutter: bool,
10849 is_buffer_header: bool,
10850}
10851
10852pub fn layout_line(
10853 row: DisplayRow,
10854 snapshot: &EditorSnapshot,
10855 style: &EditorStyle,
10856 text_width: Pixels,
10857 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
10858 window: &mut Window,
10859 cx: &mut App,
10860) -> LineWithInvisibles {
10861 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
10862 LineWithInvisibles::from_chunks(
10863 chunks,
10864 style,
10865 MAX_LINE_LEN,
10866 1,
10867 &snapshot.mode,
10868 text_width,
10869 is_row_soft_wrapped,
10870 &[],
10871 window,
10872 cx,
10873 )
10874 .pop()
10875 .unwrap()
10876}
10877
10878#[derive(Debug)]
10879pub struct IndentGuideLayout {
10880 origin: gpui::Point<Pixels>,
10881 length: Pixels,
10882 single_indent_width: Pixels,
10883 depth: u32,
10884 active: bool,
10885 settings: IndentGuideSettings,
10886}
10887
10888pub struct CursorLayout {
10889 origin: gpui::Point<Pixels>,
10890 block_width: Pixels,
10891 line_height: Pixels,
10892 color: Hsla,
10893 shape: CursorShape,
10894 block_text: Option<ShapedLine>,
10895 cursor_name: Option<AnyElement>,
10896}
10897
10898#[derive(Debug)]
10899pub struct CursorName {
10900 string: SharedString,
10901 color: Hsla,
10902 is_top_row: bool,
10903}
10904
10905impl CursorLayout {
10906 pub fn new(
10907 origin: gpui::Point<Pixels>,
10908 block_width: Pixels,
10909 line_height: Pixels,
10910 color: Hsla,
10911 shape: CursorShape,
10912 block_text: Option<ShapedLine>,
10913 ) -> CursorLayout {
10914 CursorLayout {
10915 origin,
10916 block_width,
10917 line_height,
10918 color,
10919 shape,
10920 block_text,
10921 cursor_name: None,
10922 }
10923 }
10924
10925 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
10926 Bounds {
10927 origin: self.origin + origin,
10928 size: size(self.block_width, self.line_height),
10929 }
10930 }
10931
10932 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
10933 match self.shape {
10934 CursorShape::Bar => Bounds {
10935 origin: self.origin + origin,
10936 size: size(px(2.0), self.line_height),
10937 },
10938 CursorShape::Block | CursorShape::Hollow => Bounds {
10939 origin: self.origin + origin,
10940 size: size(self.block_width, self.line_height),
10941 },
10942 CursorShape::Underline => Bounds {
10943 origin: self.origin
10944 + origin
10945 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
10946 size: size(self.block_width, px(2.0)),
10947 },
10948 }
10949 }
10950
10951 pub fn layout(
10952 &mut self,
10953 origin: gpui::Point<Pixels>,
10954 cursor_name: Option<CursorName>,
10955 window: &mut Window,
10956 cx: &mut App,
10957 ) {
10958 if let Some(cursor_name) = cursor_name {
10959 let bounds = self.bounds(origin);
10960 let text_size = self.line_height / 1.5;
10961
10962 let name_origin = if cursor_name.is_top_row {
10963 point(bounds.right() - px(1.), bounds.top())
10964 } else {
10965 match self.shape {
10966 CursorShape::Bar => point(
10967 bounds.right() - px(2.),
10968 bounds.top() - text_size / 2. - px(1.),
10969 ),
10970 _ => point(
10971 bounds.right() - px(1.),
10972 bounds.top() - text_size / 2. - px(1.),
10973 ),
10974 }
10975 };
10976 let mut name_element = div()
10977 .bg(self.color)
10978 .text_size(text_size)
10979 .px_0p5()
10980 .line_height(text_size + px(2.))
10981 .text_color(cursor_name.color)
10982 .child(cursor_name.string)
10983 .into_any_element();
10984
10985 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
10986
10987 self.cursor_name = Some(name_element);
10988 }
10989 }
10990
10991 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
10992 let bounds = self.bounds(origin);
10993
10994 //Draw background or border quad
10995 let cursor = if matches!(self.shape, CursorShape::Hollow) {
10996 outline(bounds, self.color, BorderStyle::Solid)
10997 } else {
10998 fill(bounds, self.color)
10999 };
11000
11001 if let Some(name) = &mut self.cursor_name {
11002 name.paint(window, cx);
11003 }
11004
11005 window.paint_quad(cursor);
11006
11007 if let Some(block_text) = &self.block_text {
11008 block_text
11009 .paint(self.origin + origin, self.line_height, window, cx)
11010 .log_err();
11011 }
11012 }
11013
11014 pub fn shape(&self) -> CursorShape {
11015 self.shape
11016 }
11017}
11018
11019#[derive(Debug)]
11020pub struct HighlightedRange {
11021 pub start_y: Pixels,
11022 pub line_height: Pixels,
11023 pub lines: Vec<HighlightedRangeLine>,
11024 pub color: Hsla,
11025 pub corner_radius: Pixels,
11026}
11027
11028#[derive(Debug)]
11029pub struct HighlightedRangeLine {
11030 pub start_x: Pixels,
11031 pub end_x: Pixels,
11032}
11033
11034impl HighlightedRange {
11035 pub fn paint(&self, fill: bool, bounds: Bounds<Pixels>, window: &mut Window) {
11036 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
11037 self.paint_lines(self.start_y, &self.lines[0..1], fill, bounds, window);
11038 self.paint_lines(
11039 self.start_y + self.line_height,
11040 &self.lines[1..],
11041 fill,
11042 bounds,
11043 window,
11044 );
11045 } else {
11046 self.paint_lines(self.start_y, &self.lines, fill, bounds, window);
11047 }
11048 }
11049
11050 fn paint_lines(
11051 &self,
11052 start_y: Pixels,
11053 lines: &[HighlightedRangeLine],
11054 fill: bool,
11055 _bounds: Bounds<Pixels>,
11056 window: &mut Window,
11057 ) {
11058 if lines.is_empty() {
11059 return;
11060 }
11061
11062 let first_line = lines.first().unwrap();
11063 let last_line = lines.last().unwrap();
11064
11065 let first_top_left = point(first_line.start_x, start_y);
11066 let first_top_right = point(first_line.end_x, start_y);
11067
11068 let curve_height = point(Pixels::ZERO, self.corner_radius);
11069 let curve_width = |start_x: Pixels, end_x: Pixels| {
11070 let max = (end_x - start_x) / 2.;
11071 let width = if max < self.corner_radius {
11072 max
11073 } else {
11074 self.corner_radius
11075 };
11076
11077 point(width, Pixels::ZERO)
11078 };
11079
11080 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
11081 let mut builder = if fill {
11082 gpui::PathBuilder::fill()
11083 } else {
11084 gpui::PathBuilder::stroke(px(1.))
11085 };
11086 builder.move_to(first_top_right - top_curve_width);
11087 builder.curve_to(first_top_right + curve_height, first_top_right);
11088
11089 let mut iter = lines.iter().enumerate().peekable();
11090 while let Some((ix, line)) = iter.next() {
11091 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
11092
11093 if let Some((_, next_line)) = iter.peek() {
11094 let next_top_right = point(next_line.end_x, bottom_right.y);
11095
11096 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
11097 Ordering::Equal => {
11098 builder.line_to(bottom_right);
11099 }
11100 Ordering::Less => {
11101 let curve_width = curve_width(next_top_right.x, bottom_right.x);
11102 builder.line_to(bottom_right - curve_height);
11103 if self.corner_radius > Pixels::ZERO {
11104 builder.curve_to(bottom_right - curve_width, bottom_right);
11105 }
11106 builder.line_to(next_top_right + curve_width);
11107 if self.corner_radius > Pixels::ZERO {
11108 builder.curve_to(next_top_right + curve_height, next_top_right);
11109 }
11110 }
11111 Ordering::Greater => {
11112 let curve_width = curve_width(bottom_right.x, next_top_right.x);
11113 builder.line_to(bottom_right - curve_height);
11114 if self.corner_radius > Pixels::ZERO {
11115 builder.curve_to(bottom_right + curve_width, bottom_right);
11116 }
11117 builder.line_to(next_top_right - curve_width);
11118 if self.corner_radius > Pixels::ZERO {
11119 builder.curve_to(next_top_right + curve_height, next_top_right);
11120 }
11121 }
11122 }
11123 } else {
11124 let curve_width = curve_width(line.start_x, line.end_x);
11125 builder.line_to(bottom_right - curve_height);
11126 if self.corner_radius > Pixels::ZERO {
11127 builder.curve_to(bottom_right - curve_width, bottom_right);
11128 }
11129
11130 let bottom_left = point(line.start_x, bottom_right.y);
11131 builder.line_to(bottom_left + curve_width);
11132 if self.corner_radius > Pixels::ZERO {
11133 builder.curve_to(bottom_left - curve_height, bottom_left);
11134 }
11135 }
11136 }
11137
11138 if first_line.start_x > last_line.start_x {
11139 let curve_width = curve_width(last_line.start_x, first_line.start_x);
11140 let second_top_left = point(last_line.start_x, start_y + self.line_height);
11141 builder.line_to(second_top_left + curve_height);
11142 if self.corner_radius > Pixels::ZERO {
11143 builder.curve_to(second_top_left + curve_width, second_top_left);
11144 }
11145 let first_bottom_left = point(first_line.start_x, second_top_left.y);
11146 builder.line_to(first_bottom_left - curve_width);
11147 if self.corner_radius > Pixels::ZERO {
11148 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
11149 }
11150 }
11151
11152 builder.line_to(first_top_left + curve_height);
11153 if self.corner_radius > Pixels::ZERO {
11154 builder.curve_to(first_top_left + top_curve_width, first_top_left);
11155 }
11156 builder.line_to(first_top_right - top_curve_width);
11157
11158 if let Ok(path) = builder.build() {
11159 window.paint_path(path, self.color);
11160 }
11161 }
11162}
11163
11164pub(crate) struct StickyHeader {
11165 pub item: language::OutlineItem<Anchor>,
11166 pub sticky_row: DisplayRow,
11167 pub start_point: Point,
11168 pub offset: ScrollOffset,
11169}
11170
11171enum CursorPopoverType {
11172 CodeContextMenu,
11173 EditPrediction,
11174}
11175
11176pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
11177 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
11178}
11179
11180fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
11181 (delta.pow(1.2) / 300.0).into()
11182}
11183
11184pub fn register_action<T: Action>(
11185 editor: &Entity<Editor>,
11186 window: &mut Window,
11187 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
11188) {
11189 let editor = editor.clone();
11190 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
11191 let action = action.downcast_ref().unwrap();
11192 if phase == DispatchPhase::Bubble {
11193 editor.update(cx, |editor, cx| {
11194 listener(editor, action, window, cx);
11195 })
11196 }
11197 })
11198}
11199
11200fn compute_auto_height_layout(
11201 editor: &mut Editor,
11202 min_lines: usize,
11203 max_lines: Option<usize>,
11204 max_line_number_width: Pixels,
11205 known_dimensions: Size<Option<Pixels>>,
11206 available_width: AvailableSpace,
11207 window: &mut Window,
11208 cx: &mut Context<Editor>,
11209) -> Option<Size<Pixels>> {
11210 let width = known_dimensions.width.or({
11211 if let AvailableSpace::Definite(available_width) = available_width {
11212 Some(available_width)
11213 } else {
11214 None
11215 }
11216 })?;
11217 if let Some(height) = known_dimensions.height {
11218 return Some(size(width, height));
11219 }
11220
11221 let style = editor.style.as_ref().unwrap();
11222 let font_id = window.text_system().resolve_font(&style.text.font());
11223 let font_size = style.text.font_size.to_pixels(window.rem_size());
11224 let line_height = style.text.line_height_in_pixels(window.rem_size());
11225 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
11226
11227 let mut snapshot = editor.snapshot(window, cx);
11228 let gutter_dimensions = snapshot
11229 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
11230 .or_else(|| {
11231 editor
11232 .offset_content
11233 .then(|| GutterDimensions::default_with_margin(font_id, font_size, cx))
11234 })
11235 .unwrap_or_default();
11236
11237 editor.gutter_dimensions = gutter_dimensions;
11238 let text_width = width - gutter_dimensions.width;
11239 let overscroll = size(em_width, px(0.));
11240
11241 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
11242 if !matches!(editor.soft_wrap_mode(cx), SoftWrap::None)
11243 && editor.set_wrap_width(Some(editor_width), cx)
11244 {
11245 snapshot = editor.snapshot(window, cx);
11246 }
11247
11248 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
11249
11250 let min_height = line_height * min_lines as f32;
11251 let content_height = scroll_height.max(min_height);
11252
11253 let final_height = if let Some(max_lines) = max_lines {
11254 let max_height = line_height * max_lines as f32;
11255 content_height.min(max_height)
11256 } else {
11257 content_height
11258 };
11259
11260 Some(size(width, final_height))
11261}
11262
11263#[cfg(test)]
11264mod tests {
11265 use super::*;
11266 use crate::{
11267 Editor, MultiBuffer, SelectionEffects,
11268 display_map::{BlockPlacement, BlockProperties},
11269 editor_tests::{init_test, update_test_language_settings},
11270 };
11271 use gpui::{TestAppContext, VisualTestContext};
11272 use language::language_settings;
11273 use log::info;
11274 use std::num::NonZeroU32;
11275 use util::test::sample_text;
11276
11277 #[gpui::test]
11278 async fn test_soft_wrap_editor_width_auto_height_editor(cx: &mut TestAppContext) {
11279 init_test(cx, |_| {});
11280
11281 let window = cx.add_window(|window, cx| {
11282 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
11283 let mut editor = Editor::new(
11284 EditorMode::AutoHeight {
11285 min_lines: 1,
11286 max_lines: None,
11287 },
11288 buffer,
11289 None,
11290 window,
11291 cx,
11292 );
11293 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
11294 editor
11295 });
11296 let cx = &mut VisualTestContext::from_window(*window, cx);
11297 let editor = window.root(cx).unwrap();
11298 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
11299
11300 for x in 1..=100 {
11301 let (_, state) = cx.draw(
11302 Default::default(),
11303 size(px(200. + 0.13 * x as f32), px(500.)),
11304 |_, _| EditorElement::new(&editor, style.clone()),
11305 );
11306
11307 assert!(
11308 state.position_map.scroll_max.x == 0.,
11309 "Soft wrapped editor should have no horizontal scrolling!"
11310 );
11311 }
11312 }
11313
11314 #[gpui::test]
11315 async fn test_soft_wrap_editor_width_full_editor(cx: &mut TestAppContext) {
11316 init_test(cx, |_| {});
11317
11318 let window = cx.add_window(|window, cx| {
11319 let buffer = MultiBuffer::build_simple(&"a ".to_string().repeat(100), cx);
11320 let mut editor = Editor::new(EditorMode::full(), buffer, None, window, cx);
11321 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
11322 editor
11323 });
11324 let cx = &mut VisualTestContext::from_window(*window, cx);
11325 let editor = window.root(cx).unwrap();
11326 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
11327
11328 for x in 1..=100 {
11329 let (_, state) = cx.draw(
11330 Default::default(),
11331 size(px(200. + 0.13 * x as f32), px(500.)),
11332 |_, _| EditorElement::new(&editor, style.clone()),
11333 );
11334
11335 assert!(
11336 state.position_map.scroll_max.x == 0.,
11337 "Soft wrapped editor should have no horizontal scrolling!"
11338 );
11339 }
11340 }
11341
11342 #[gpui::test]
11343 fn test_shape_line_numbers(cx: &mut TestAppContext) {
11344 init_test(cx, |_| {});
11345 let window = cx.add_window(|window, cx| {
11346 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
11347 Editor::new(EditorMode::full(), buffer, None, window, cx)
11348 });
11349
11350 let editor = window.root(cx).unwrap();
11351 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
11352 let line_height = window
11353 .update(cx, |_, window, _| {
11354 style.text.line_height_in_pixels(window.rem_size())
11355 })
11356 .unwrap();
11357 let element = EditorElement::new(&editor, style);
11358 let snapshot = window
11359 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
11360 .unwrap();
11361
11362 let layouts = cx
11363 .update_window(*window, |_, window, cx| {
11364 element.layout_line_numbers(
11365 None,
11366 GutterDimensions {
11367 left_padding: Pixels::ZERO,
11368 right_padding: Pixels::ZERO,
11369 width: px(30.0),
11370 margin: Pixels::ZERO,
11371 git_blame_entries_width: None,
11372 },
11373 line_height,
11374 gpui::Point::default(),
11375 DisplayRow(0)..DisplayRow(6),
11376 &(0..6)
11377 .map(|row| RowInfo {
11378 buffer_row: Some(row),
11379 ..Default::default()
11380 })
11381 .collect::<Vec<_>>(),
11382 &BTreeMap::default(),
11383 Some(DisplayPoint::new(DisplayRow(0), 0)),
11384 &snapshot,
11385 window,
11386 cx,
11387 )
11388 })
11389 .unwrap();
11390 assert_eq!(layouts.len(), 6);
11391
11392 let relative_rows = window
11393 .update(cx, |editor, window, cx| {
11394 let snapshot = editor.snapshot(window, cx);
11395 element.calculate_relative_line_numbers(
11396 &snapshot,
11397 &(DisplayRow(0)..DisplayRow(6)),
11398 Some(DisplayRow(3)),
11399 false,
11400 )
11401 })
11402 .unwrap();
11403 assert_eq!(relative_rows[&DisplayRow(0)], 3);
11404 assert_eq!(relative_rows[&DisplayRow(1)], 2);
11405 assert_eq!(relative_rows[&DisplayRow(2)], 1);
11406 // current line has no relative number
11407 assert_eq!(relative_rows[&DisplayRow(4)], 1);
11408 assert_eq!(relative_rows[&DisplayRow(5)], 2);
11409
11410 // works if cursor is before screen
11411 let relative_rows = window
11412 .update(cx, |editor, window, cx| {
11413 let snapshot = editor.snapshot(window, cx);
11414 element.calculate_relative_line_numbers(
11415 &snapshot,
11416 &(DisplayRow(3)..DisplayRow(6)),
11417 Some(DisplayRow(1)),
11418 false,
11419 )
11420 })
11421 .unwrap();
11422 assert_eq!(relative_rows.len(), 3);
11423 assert_eq!(relative_rows[&DisplayRow(3)], 2);
11424 assert_eq!(relative_rows[&DisplayRow(4)], 3);
11425 assert_eq!(relative_rows[&DisplayRow(5)], 4);
11426
11427 // works if cursor is after screen
11428 let relative_rows = window
11429 .update(cx, |editor, window, cx| {
11430 let snapshot = editor.snapshot(window, cx);
11431 element.calculate_relative_line_numbers(
11432 &snapshot,
11433 &(DisplayRow(0)..DisplayRow(3)),
11434 Some(DisplayRow(6)),
11435 false,
11436 )
11437 })
11438 .unwrap();
11439 assert_eq!(relative_rows.len(), 3);
11440 assert_eq!(relative_rows[&DisplayRow(0)], 5);
11441 assert_eq!(relative_rows[&DisplayRow(1)], 4);
11442 assert_eq!(relative_rows[&DisplayRow(2)], 3);
11443
11444 const DELETED_LINE: u32 = 3;
11445 let layouts = cx
11446 .update_window(*window, |_, window, cx| {
11447 element.layout_line_numbers(
11448 None,
11449 GutterDimensions {
11450 left_padding: Pixels::ZERO,
11451 right_padding: Pixels::ZERO,
11452 width: px(30.0),
11453 margin: Pixels::ZERO,
11454 git_blame_entries_width: None,
11455 },
11456 line_height,
11457 gpui::Point::default(),
11458 DisplayRow(0)..DisplayRow(6),
11459 &(0..6)
11460 .map(|row| RowInfo {
11461 buffer_row: Some(row),
11462 diff_status: (row == DELETED_LINE).then(|| {
11463 DiffHunkStatus::deleted(
11464 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
11465 )
11466 }),
11467 ..Default::default()
11468 })
11469 .collect::<Vec<_>>(),
11470 &BTreeMap::default(),
11471 Some(DisplayPoint::new(DisplayRow(0), 0)),
11472 &snapshot,
11473 window,
11474 cx,
11475 )
11476 })
11477 .unwrap();
11478 assert_eq!(layouts.len(), 5,);
11479 assert!(
11480 layouts.get(&MultiBufferRow(DELETED_LINE)).is_none(),
11481 "Deleted line should not have a line number"
11482 );
11483 }
11484
11485 #[gpui::test]
11486 fn test_shape_line_numbers_wrapping(cx: &mut TestAppContext) {
11487 init_test(cx, |_| {});
11488 let window = cx.add_window(|window, cx| {
11489 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
11490 Editor::new(EditorMode::full(), buffer, None, window, cx)
11491 });
11492
11493 update_test_language_settings(cx, |s| {
11494 s.defaults.preferred_line_length = Some(5_u32);
11495 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
11496 });
11497
11498 let editor = window.root(cx).unwrap();
11499 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
11500 let line_height = window
11501 .update(cx, |_, window, _| {
11502 style.text.line_height_in_pixels(window.rem_size())
11503 })
11504 .unwrap();
11505 let element = EditorElement::new(&editor, style);
11506 let snapshot = window
11507 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
11508 .unwrap();
11509
11510 let layouts = cx
11511 .update_window(*window, |_, window, cx| {
11512 element.layout_line_numbers(
11513 None,
11514 GutterDimensions {
11515 left_padding: Pixels::ZERO,
11516 right_padding: Pixels::ZERO,
11517 width: px(30.0),
11518 margin: Pixels::ZERO,
11519 git_blame_entries_width: None,
11520 },
11521 line_height,
11522 gpui::Point::default(),
11523 DisplayRow(0)..DisplayRow(6),
11524 &(0..6)
11525 .map(|row| RowInfo {
11526 buffer_row: Some(row),
11527 ..Default::default()
11528 })
11529 .collect::<Vec<_>>(),
11530 &BTreeMap::default(),
11531 Some(DisplayPoint::new(DisplayRow(0), 0)),
11532 &snapshot,
11533 window,
11534 cx,
11535 )
11536 })
11537 .unwrap();
11538 assert_eq!(layouts.len(), 3);
11539
11540 let relative_rows = window
11541 .update(cx, |editor, window, cx| {
11542 let snapshot = editor.snapshot(window, cx);
11543 element.calculate_relative_line_numbers(
11544 &snapshot,
11545 &(DisplayRow(0)..DisplayRow(6)),
11546 Some(DisplayRow(3)),
11547 true,
11548 )
11549 })
11550 .unwrap();
11551
11552 assert_eq!(relative_rows[&DisplayRow(0)], 3);
11553 assert_eq!(relative_rows[&DisplayRow(1)], 2);
11554 assert_eq!(relative_rows[&DisplayRow(2)], 1);
11555 // current line has no relative number
11556 assert_eq!(relative_rows[&DisplayRow(4)], 1);
11557 assert_eq!(relative_rows[&DisplayRow(5)], 2);
11558
11559 let layouts = cx
11560 .update_window(*window, |_, window, cx| {
11561 element.layout_line_numbers(
11562 None,
11563 GutterDimensions {
11564 left_padding: Pixels::ZERO,
11565 right_padding: Pixels::ZERO,
11566 width: px(30.0),
11567 margin: Pixels::ZERO,
11568 git_blame_entries_width: None,
11569 },
11570 line_height,
11571 gpui::Point::default(),
11572 DisplayRow(0)..DisplayRow(6),
11573 &(0..6)
11574 .map(|row| RowInfo {
11575 buffer_row: Some(row),
11576 diff_status: Some(DiffHunkStatus::deleted(
11577 buffer_diff::DiffHunkSecondaryStatus::NoSecondaryHunk,
11578 )),
11579 ..Default::default()
11580 })
11581 .collect::<Vec<_>>(),
11582 &BTreeMap::from_iter([(DisplayRow(0), LineHighlightSpec::default())]),
11583 Some(DisplayPoint::new(DisplayRow(0), 0)),
11584 &snapshot,
11585 window,
11586 cx,
11587 )
11588 })
11589 .unwrap();
11590 assert!(
11591 layouts.is_empty(),
11592 "Deleted lines should have no line number"
11593 );
11594
11595 let relative_rows = window
11596 .update(cx, |editor, window, cx| {
11597 let snapshot = editor.snapshot(window, cx);
11598 element.calculate_relative_line_numbers(
11599 &snapshot,
11600 &(DisplayRow(0)..DisplayRow(6)),
11601 Some(DisplayRow(3)),
11602 true,
11603 )
11604 })
11605 .unwrap();
11606
11607 // Deleted lines should still have relative numbers
11608 assert_eq!(relative_rows[&DisplayRow(0)], 3);
11609 assert_eq!(relative_rows[&DisplayRow(1)], 2);
11610 assert_eq!(relative_rows[&DisplayRow(2)], 1);
11611 // current line, even if deleted, has no relative number
11612 assert_eq!(relative_rows[&DisplayRow(4)], 1);
11613 assert_eq!(relative_rows[&DisplayRow(5)], 2);
11614 }
11615
11616 #[gpui::test]
11617 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
11618 init_test(cx, |_| {});
11619
11620 let window = cx.add_window(|window, cx| {
11621 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
11622 Editor::new(EditorMode::full(), buffer, None, window, cx)
11623 });
11624 let cx = &mut VisualTestContext::from_window(*window, cx);
11625 let editor = window.root(cx).unwrap();
11626 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
11627
11628 window
11629 .update(cx, |editor, window, cx| {
11630 editor.cursor_shape = CursorShape::Block;
11631 editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
11632 s.select_ranges([
11633 Point::new(0, 0)..Point::new(1, 0),
11634 Point::new(3, 2)..Point::new(3, 3),
11635 Point::new(5, 6)..Point::new(6, 0),
11636 ]);
11637 });
11638 })
11639 .unwrap();
11640
11641 let (_, state) = cx.draw(
11642 point(px(500.), px(500.)),
11643 size(px(500.), px(500.)),
11644 |_, _| EditorElement::new(&editor, style),
11645 );
11646
11647 assert_eq!(state.selections.len(), 1);
11648 let local_selections = &state.selections[0].1;
11649 assert_eq!(local_selections.len(), 3);
11650 // moves cursor back one line
11651 assert_eq!(
11652 local_selections[0].head,
11653 DisplayPoint::new(DisplayRow(0), 6)
11654 );
11655 assert_eq!(
11656 local_selections[0].range,
11657 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
11658 );
11659
11660 // moves cursor back one column
11661 assert_eq!(
11662 local_selections[1].range,
11663 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
11664 );
11665 assert_eq!(
11666 local_selections[1].head,
11667 DisplayPoint::new(DisplayRow(3), 2)
11668 );
11669
11670 // leaves cursor on the max point
11671 assert_eq!(
11672 local_selections[2].range,
11673 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
11674 );
11675 assert_eq!(
11676 local_selections[2].head,
11677 DisplayPoint::new(DisplayRow(6), 0)
11678 );
11679
11680 // active lines does not include 1 (even though the range of the selection does)
11681 assert_eq!(
11682 state.active_rows.keys().cloned().collect::<Vec<_>>(),
11683 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
11684 );
11685 }
11686
11687 #[gpui::test]
11688 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
11689 init_test(cx, |_| {});
11690
11691 let window = cx.add_window(|window, cx| {
11692 let buffer = MultiBuffer::build_simple("", cx);
11693 Editor::new(EditorMode::full(), buffer, None, window, cx)
11694 });
11695 let cx = &mut VisualTestContext::from_window(*window, cx);
11696 let editor = window.root(cx).unwrap();
11697 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
11698 window
11699 .update(cx, |editor, window, cx| {
11700 editor.set_placeholder_text("hello", window, cx);
11701 editor.insert_blocks(
11702 [BlockProperties {
11703 style: BlockStyle::Fixed,
11704 placement: BlockPlacement::Above(Anchor::min()),
11705 height: Some(3),
11706 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
11707 priority: 0,
11708 }],
11709 None,
11710 cx,
11711 );
11712
11713 // Blur the editor so that it displays placeholder text.
11714 window.blur();
11715 })
11716 .unwrap();
11717
11718 let (_, state) = cx.draw(
11719 point(px(500.), px(500.)),
11720 size(px(500.), px(500.)),
11721 |_, _| EditorElement::new(&editor, style),
11722 );
11723 assert_eq!(state.position_map.line_layouts.len(), 4);
11724 assert_eq!(state.line_numbers.len(), 1);
11725 assert_eq!(
11726 state
11727 .line_numbers
11728 .get(&MultiBufferRow(0))
11729 .map(|line_number| line_number
11730 .segments
11731 .first()
11732 .unwrap()
11733 .shaped_line
11734 .text
11735 .as_ref()),
11736 Some("1")
11737 );
11738 }
11739
11740 #[gpui::test]
11741 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
11742 const TAB_SIZE: u32 = 4;
11743
11744 let input_text = "\t \t|\t| a b";
11745 let expected_invisibles = vec![
11746 Invisible::Tab {
11747 line_start_offset: 0,
11748 line_end_offset: TAB_SIZE as usize,
11749 },
11750 Invisible::Whitespace {
11751 line_offset: TAB_SIZE as usize,
11752 },
11753 Invisible::Tab {
11754 line_start_offset: TAB_SIZE as usize + 1,
11755 line_end_offset: TAB_SIZE as usize * 2,
11756 },
11757 Invisible::Tab {
11758 line_start_offset: TAB_SIZE as usize * 2 + 1,
11759 line_end_offset: TAB_SIZE as usize * 3,
11760 },
11761 Invisible::Whitespace {
11762 line_offset: TAB_SIZE as usize * 3 + 1,
11763 },
11764 Invisible::Whitespace {
11765 line_offset: TAB_SIZE as usize * 3 + 3,
11766 },
11767 ];
11768 assert_eq!(
11769 expected_invisibles.len(),
11770 input_text
11771 .chars()
11772 .filter(|initial_char| initial_char.is_whitespace())
11773 .count(),
11774 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
11775 );
11776
11777 for show_line_numbers in [true, false] {
11778 init_test(cx, |s| {
11779 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
11780 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
11781 });
11782
11783 let actual_invisibles = collect_invisibles_from_new_editor(
11784 cx,
11785 EditorMode::full(),
11786 input_text,
11787 px(500.0),
11788 show_line_numbers,
11789 );
11790
11791 assert_eq!(expected_invisibles, actual_invisibles);
11792 }
11793 }
11794
11795 #[gpui::test]
11796 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
11797 init_test(cx, |s| {
11798 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
11799 s.defaults.tab_size = NonZeroU32::new(4);
11800 });
11801
11802 for editor_mode_without_invisibles in [
11803 EditorMode::SingleLine,
11804 EditorMode::AutoHeight {
11805 min_lines: 1,
11806 max_lines: Some(100),
11807 },
11808 ] {
11809 for show_line_numbers in [true, false] {
11810 let invisibles = collect_invisibles_from_new_editor(
11811 cx,
11812 editor_mode_without_invisibles.clone(),
11813 "\t\t\t| | a b",
11814 px(500.0),
11815 show_line_numbers,
11816 );
11817 assert!(
11818 invisibles.is_empty(),
11819 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
11820 );
11821 }
11822 }
11823 }
11824
11825 #[gpui::test]
11826 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
11827 let tab_size = 4;
11828 let input_text = "a\tbcd ".repeat(9);
11829 let repeated_invisibles = [
11830 Invisible::Tab {
11831 line_start_offset: 1,
11832 line_end_offset: tab_size as usize,
11833 },
11834 Invisible::Whitespace {
11835 line_offset: tab_size as usize + 3,
11836 },
11837 Invisible::Whitespace {
11838 line_offset: tab_size as usize + 4,
11839 },
11840 Invisible::Whitespace {
11841 line_offset: tab_size as usize + 5,
11842 },
11843 Invisible::Whitespace {
11844 line_offset: tab_size as usize + 6,
11845 },
11846 Invisible::Whitespace {
11847 line_offset: tab_size as usize + 7,
11848 },
11849 ];
11850 let expected_invisibles = std::iter::once(repeated_invisibles)
11851 .cycle()
11852 .take(9)
11853 .flatten()
11854 .collect::<Vec<_>>();
11855 assert_eq!(
11856 expected_invisibles.len(),
11857 input_text
11858 .chars()
11859 .filter(|initial_char| initial_char.is_whitespace())
11860 .count(),
11861 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
11862 );
11863 info!("Expected invisibles: {expected_invisibles:?}");
11864
11865 init_test(cx, |_| {});
11866
11867 // Put the same string with repeating whitespace pattern into editors of various size,
11868 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
11869 let resize_step = 10.0;
11870 let mut editor_width = 200.0;
11871 while editor_width <= 1000.0 {
11872 for show_line_numbers in [true, false] {
11873 update_test_language_settings(cx, |s| {
11874 s.defaults.tab_size = NonZeroU32::new(tab_size);
11875 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
11876 s.defaults.preferred_line_length = Some(editor_width as u32);
11877 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
11878 });
11879
11880 let actual_invisibles = collect_invisibles_from_new_editor(
11881 cx,
11882 EditorMode::full(),
11883 &input_text,
11884 px(editor_width),
11885 show_line_numbers,
11886 );
11887
11888 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
11889 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
11890 let mut i = 0;
11891 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
11892 i = actual_index;
11893 match expected_invisibles.get(i) {
11894 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
11895 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
11896 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
11897 _ => {
11898 panic!(
11899 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
11900 )
11901 }
11902 },
11903 None => {
11904 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
11905 }
11906 }
11907 }
11908 let missing_expected_invisibles = &expected_invisibles[i + 1..];
11909 assert!(
11910 missing_expected_invisibles.is_empty(),
11911 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
11912 );
11913
11914 editor_width += resize_step;
11915 }
11916 }
11917 }
11918
11919 fn collect_invisibles_from_new_editor(
11920 cx: &mut TestAppContext,
11921 editor_mode: EditorMode,
11922 input_text: &str,
11923 editor_width: Pixels,
11924 show_line_numbers: bool,
11925 ) -> Vec<Invisible> {
11926 info!(
11927 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
11928 f32::from(editor_width)
11929 );
11930 let window = cx.add_window(|window, cx| {
11931 let buffer = MultiBuffer::build_simple(input_text, cx);
11932 Editor::new(editor_mode, buffer, None, window, cx)
11933 });
11934 let cx = &mut VisualTestContext::from_window(*window, cx);
11935 let editor = window.root(cx).unwrap();
11936
11937 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
11938 window
11939 .update(cx, |editor, _, cx| {
11940 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
11941 editor.set_wrap_width(Some(editor_width), cx);
11942 editor.set_show_line_numbers(show_line_numbers, cx);
11943 })
11944 .unwrap();
11945 let (_, state) = cx.draw(
11946 point(px(500.), px(500.)),
11947 size(px(500.), px(500.)),
11948 |_, _| EditorElement::new(&editor, style),
11949 );
11950 state
11951 .position_map
11952 .line_layouts
11953 .iter()
11954 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
11955 .cloned()
11956 .collect()
11957 }
11958
11959 #[gpui::test]
11960 fn test_merge_overlapping_ranges() {
11961 let base_bg = Hsla::white();
11962 let color1 = Hsla {
11963 h: 0.0,
11964 s: 0.5,
11965 l: 0.5,
11966 a: 0.5,
11967 };
11968 let color2 = Hsla {
11969 h: 120.0,
11970 s: 0.5,
11971 l: 0.5,
11972 a: 0.5,
11973 };
11974
11975 let display_point = |col| DisplayPoint::new(DisplayRow(0), col);
11976 let cols = |v: &Vec<(Range<DisplayPoint>, Hsla)>| -> Vec<(u32, u32)> {
11977 v.iter()
11978 .map(|(r, _)| (r.start.column(), r.end.column()))
11979 .collect()
11980 };
11981
11982 // Test overlapping ranges blend colors
11983 let overlapping = vec![
11984 (display_point(5)..display_point(15), color1),
11985 (display_point(10)..display_point(20), color2),
11986 ];
11987 let result = EditorElement::merge_overlapping_ranges(overlapping, base_bg);
11988 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
11989
11990 // Test middle segment should have blended color
11991 let blended = Hsla::blend(Hsla::blend(base_bg, color1), color2);
11992 assert_eq!(result[1].1, blended);
11993
11994 // Test adjacent same-color ranges merge
11995 let adjacent_same = vec![
11996 (display_point(5)..display_point(10), color1),
11997 (display_point(10)..display_point(15), color1),
11998 ];
11999 let result = EditorElement::merge_overlapping_ranges(adjacent_same, base_bg);
12000 assert_eq!(cols(&result), vec![(5, 15)]);
12001
12002 // Test contained range splits
12003 let contained = vec![
12004 (display_point(5)..display_point(20), color1),
12005 (display_point(10)..display_point(15), color2),
12006 ];
12007 let result = EditorElement::merge_overlapping_ranges(contained, base_bg);
12008 assert_eq!(cols(&result), vec![(5, 10), (10, 15), (15, 20)]);
12009
12010 // Test multiple overlaps split at every boundary
12011 let color3 = Hsla {
12012 h: 240.0,
12013 s: 0.5,
12014 l: 0.5,
12015 a: 0.5,
12016 };
12017 let complex = vec![
12018 (display_point(5)..display_point(12), color1),
12019 (display_point(8)..display_point(16), color2),
12020 (display_point(10)..display_point(14), color3),
12021 ];
12022 let result = EditorElement::merge_overlapping_ranges(complex, base_bg);
12023 assert_eq!(
12024 cols(&result),
12025 vec![(5, 8), (8, 10), (10, 12), (12, 14), (14, 16)]
12026 );
12027 }
12028
12029 #[gpui::test]
12030 fn test_bg_segments_per_row() {
12031 let base_bg = Hsla::white();
12032
12033 // Case A: selection spans three display rows: row 1 [5, end), full row 2, row 3 [0, 7)
12034 {
12035 let selection_color = Hsla {
12036 h: 200.0,
12037 s: 0.5,
12038 l: 0.5,
12039 a: 0.5,
12040 };
12041 let player_color = PlayerColor {
12042 cursor: selection_color,
12043 background: selection_color,
12044 selection: selection_color,
12045 };
12046
12047 let spanning_selection = SelectionLayout {
12048 head: DisplayPoint::new(DisplayRow(3), 7),
12049 cursor_shape: CursorShape::Bar,
12050 is_newest: true,
12051 is_local: true,
12052 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 7),
12053 active_rows: DisplayRow(1)..DisplayRow(4),
12054 user_name: None,
12055 };
12056
12057 let selections = vec![(player_color, vec![spanning_selection])];
12058 let result = EditorElement::bg_segments_per_row(
12059 DisplayRow(0)..DisplayRow(5),
12060 &selections,
12061 &[],
12062 base_bg,
12063 );
12064
12065 assert_eq!(result.len(), 5);
12066 assert!(result[0].is_empty());
12067 assert_eq!(result[1].len(), 1);
12068 assert_eq!(result[2].len(), 1);
12069 assert_eq!(result[3].len(), 1);
12070 assert!(result[4].is_empty());
12071
12072 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
12073 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
12074 assert_eq!(result[1][0].0.end.column(), u32::MAX);
12075 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
12076 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
12077 assert_eq!(result[2][0].0.end.column(), u32::MAX);
12078 assert_eq!(result[3][0].0.start, DisplayPoint::new(DisplayRow(3), 0));
12079 assert_eq!(result[3][0].0.end, DisplayPoint::new(DisplayRow(3), 7));
12080 }
12081
12082 // Case B: selection ends exactly at the start of row 3, excluding row 3
12083 {
12084 let selection_color = Hsla {
12085 h: 120.0,
12086 s: 0.5,
12087 l: 0.5,
12088 a: 0.5,
12089 };
12090 let player_color = PlayerColor {
12091 cursor: selection_color,
12092 background: selection_color,
12093 selection: selection_color,
12094 };
12095
12096 let selection = SelectionLayout {
12097 head: DisplayPoint::new(DisplayRow(2), 0),
12098 cursor_shape: CursorShape::Bar,
12099 is_newest: true,
12100 is_local: true,
12101 range: DisplayPoint::new(DisplayRow(1), 5)..DisplayPoint::new(DisplayRow(3), 0),
12102 active_rows: DisplayRow(1)..DisplayRow(3),
12103 user_name: None,
12104 };
12105
12106 let selections = vec![(player_color, vec![selection])];
12107 let result = EditorElement::bg_segments_per_row(
12108 DisplayRow(0)..DisplayRow(4),
12109 &selections,
12110 &[],
12111 base_bg,
12112 );
12113
12114 assert_eq!(result.len(), 4);
12115 assert!(result[0].is_empty());
12116 assert_eq!(result[1].len(), 1);
12117 assert_eq!(result[2].len(), 1);
12118 assert!(result[3].is_empty());
12119
12120 assert_eq!(result[1][0].0.start, DisplayPoint::new(DisplayRow(1), 5));
12121 assert_eq!(result[1][0].0.end.row(), DisplayRow(1));
12122 assert_eq!(result[1][0].0.end.column(), u32::MAX);
12123 assert_eq!(result[2][0].0.start, DisplayPoint::new(DisplayRow(2), 0));
12124 assert_eq!(result[2][0].0.end.row(), DisplayRow(2));
12125 assert_eq!(result[2][0].0.end.column(), u32::MAX);
12126 }
12127 }
12128
12129 #[cfg(test)]
12130 fn generate_test_run(len: usize, color: Hsla) -> TextRun {
12131 TextRun {
12132 len,
12133 color,
12134 ..Default::default()
12135 }
12136 }
12137
12138 #[gpui::test]
12139 fn test_split_runs_by_bg_segments(cx: &mut gpui::TestAppContext) {
12140 init_test(cx, |_| {});
12141
12142 let dx = |start: u32, end: u32| {
12143 DisplayPoint::new(DisplayRow(0), start)..DisplayPoint::new(DisplayRow(0), end)
12144 };
12145
12146 let text_color = Hsla {
12147 h: 210.0,
12148 s: 0.1,
12149 l: 0.4,
12150 a: 1.0,
12151 };
12152 let bg_1 = Hsla {
12153 h: 30.0,
12154 s: 0.6,
12155 l: 0.8,
12156 a: 1.0,
12157 };
12158 let bg_2 = Hsla {
12159 h: 200.0,
12160 s: 0.6,
12161 l: 0.2,
12162 a: 1.0,
12163 };
12164 let min_contrast = 45.0;
12165 let adjusted_bg1 = ensure_minimum_contrast(text_color, bg_1, min_contrast);
12166 let adjusted_bg2 = ensure_minimum_contrast(text_color, bg_2, min_contrast);
12167
12168 // Case A: single run; disjoint segments inside the run
12169 {
12170 let runs = vec![generate_test_run(20, text_color)];
12171 let segs = vec![(dx(5, 10), bg_1), (dx(12, 16), bg_2)];
12172 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
12173 // Expected slices: [0,5) [5,10) [10,12) [12,16) [16,20)
12174 assert_eq!(
12175 out.iter().map(|r| r.len).collect::<Vec<_>>(),
12176 vec![5, 5, 2, 4, 4]
12177 );
12178 assert_eq!(out[0].color, text_color);
12179 assert_eq!(out[1].color, adjusted_bg1);
12180 assert_eq!(out[2].color, text_color);
12181 assert_eq!(out[3].color, adjusted_bg2);
12182 assert_eq!(out[4].color, text_color);
12183 }
12184
12185 // Case B: multiple runs; segment extends to end of line (u32::MAX)
12186 {
12187 let runs = vec![
12188 generate_test_run(8, text_color),
12189 generate_test_run(7, text_color),
12190 ];
12191 let segs = vec![(dx(6, u32::MAX), bg_1)];
12192 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
12193 // Expected slices across runs: [0,6) [6,8) | [0,7)
12194 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![6, 2, 7]);
12195 assert_eq!(out[0].color, text_color);
12196 assert_eq!(out[1].color, adjusted_bg1);
12197 assert_eq!(out[2].color, adjusted_bg1);
12198 }
12199
12200 // Case C: multi-byte characters
12201 {
12202 // for text: "Hello π δΈη!"
12203 let runs = vec![
12204 generate_test_run(5, text_color), // "Hello"
12205 generate_test_run(6, text_color), // " π "
12206 generate_test_run(6, text_color), // "δΈη"
12207 generate_test_run(1, text_color), // "!"
12208 ];
12209 // selecting "π δΈ"
12210 let segs = vec![(dx(6, 14), bg_1)];
12211 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
12212 // "Hello" | " " | "π " | "δΈ" | "η" | "!"
12213 assert_eq!(
12214 out.iter().map(|r| r.len).collect::<Vec<_>>(),
12215 vec![5, 1, 5, 3, 3, 1]
12216 );
12217 assert_eq!(out[0].color, text_color); // "Hello"
12218 assert_eq!(out[2].color, adjusted_bg1); // "π "
12219 assert_eq!(out[3].color, adjusted_bg1); // "δΈ"
12220 assert_eq!(out[4].color, text_color); // "η"
12221 assert_eq!(out[5].color, text_color); // "!"
12222 }
12223
12224 // Case D: split multiple consecutive text runs with segments
12225 {
12226 let segs = vec![
12227 (dx(2, 4), bg_1), // selecting "cd"
12228 (dx(4, 8), bg_2), // selecting "efgh"
12229 (dx(9, 11), bg_1), // selecting "jk"
12230 (dx(12, 16), bg_2), // selecting "mnop"
12231 (dx(18, 19), bg_1), // selecting "s"
12232 ];
12233
12234 // for text: "abcdef"
12235 let runs = vec![
12236 generate_test_run(2, text_color), // ab
12237 generate_test_run(4, text_color), // cdef
12238 ];
12239 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 0);
12240 // new splits "ab", "cd", "ef"
12241 assert_eq!(out.iter().map(|r| r.len).collect::<Vec<_>>(), vec![2, 2, 2]);
12242 assert_eq!(out[0].color, text_color);
12243 assert_eq!(out[1].color, adjusted_bg1);
12244 assert_eq!(out[2].color, adjusted_bg2);
12245
12246 // for text: "ghijklmn"
12247 let runs = vec![
12248 generate_test_run(3, text_color), // ghi
12249 generate_test_run(2, text_color), // jk
12250 generate_test_run(3, text_color), // lmn
12251 ];
12252 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 6); // 2 + 4 from first run
12253 // new splits "gh", "i", "jk", "l", "mn"
12254 assert_eq!(
12255 out.iter().map(|r| r.len).collect::<Vec<_>>(),
12256 vec![2, 1, 2, 1, 2]
12257 );
12258 assert_eq!(out[0].color, adjusted_bg2);
12259 assert_eq!(out[1].color, text_color);
12260 assert_eq!(out[2].color, adjusted_bg1);
12261 assert_eq!(out[3].color, text_color);
12262 assert_eq!(out[4].color, adjusted_bg2);
12263
12264 // for text: "opqrs"
12265 let runs = vec![
12266 generate_test_run(1, text_color), // o
12267 generate_test_run(4, text_color), // pqrs
12268 ];
12269 let out = LineWithInvisibles::split_runs_by_bg_segments(&runs, &segs, min_contrast, 14); // 6 + 3 + 2 + 3 from first two runs
12270 // new splits "o", "p", "qr", "s"
12271 assert_eq!(
12272 out.iter().map(|r| r.len).collect::<Vec<_>>(),
12273 vec![1, 1, 2, 1]
12274 );
12275 assert_eq!(out[0].color, adjusted_bg2);
12276 assert_eq!(out[1].color, adjusted_bg2);
12277 assert_eq!(out[2].color, text_color);
12278 assert_eq!(out[3].color, adjusted_bg1);
12279 }
12280 }
12281}